E2FSPROGS_CFLAGS := -I$(E2FSPROGS_DIR) -include $(E2FSPROGS_DIR)/e2fsbb.h
BLKID_SRC := cache.c dev.c devname.c devno.c blkid_getsize.c \
- probe.c read.c resolve.c save.c tag.c resolve.c
+ probe.c read.c resolve.c save.c tag.c resolve.c
BLKID_SRCS := $(patsubst %,blkid/%, $(BLKID_SRC))
BLKID_OBJS := $(patsubst %.c,%.o, $(BLKID_SRCS))
-E2FSCK_SRC := badblocks.c dict.c dirinfo.c dx_dirinfo.c e2fsck.c \
- ea_refcount.c ehandler.c journal.c message.c pass1.c pass1b.c \
- pass2.c pass3.c pass4.c pass5.c problem.c recovery.c region.c \
- rehash.c revoke.c super.c swapfs.c util.c
-E2FSCK_SRCS := $(patsubst %,e2fsck/%, $(E2FSCK_SRC))
+E2FSCK_SRCS := e2fsck.c
E2FSCK_OBJS := $(patsubst %.c,%.o, $(E2FSCK_SRCS))
E2P_SRC := fgetsetflags.c fgetsetversion.c pf.c iod.c mntopts.c \
- feature.c ls.c uuid.c pe.c ostype.c ps.c hashstr.c \
- parse_num.c
+ feature.c ls.c uuid.c pe.c ostype.c ps.c hashstr.c \
+ parse_num.c
E2P_SRCS := $(patsubst %,e2p/%, $(E2P_SRC))
E2P_OBJS := $(patsubst %.c,%.o, $(E2P_SRCS))
EXT2FS_SRC := gen_bitmap.c bitops.c ismounted.c mkjournal.c unix_io.c \
- rw_bitmaps.c initialize.c bitmaps.c block.c \
- ind_block.c inode.c freefs.c alloc_stats.c closefs.c \
- openfs.c io_manager.c finddev.c read_bb.c alloc.c badblocks.c \
- getsize.c getsectsize.c alloc_tables.c read_bb_file.c mkdir.c \
- bb_inode.c newdir.c alloc_sb.c lookup.c dirblock.c expanddir.c \
- dir_iterate.c link.c res_gdt.c icount.c get_pathname.c dblist.c \
- dirhash.c version.c flushb.c unlink.c check_desc.c valid_blk.c \
- ext_attr.c bmap.c dblist_dir.c ext2fs_inline.c
+ rw_bitmaps.c initialize.c bitmaps.c block.c \
+ ind_block.c inode.c freefs.c alloc_stats.c closefs.c \
+ openfs.c io_manager.c finddev.c read_bb.c alloc.c badblocks.c \
+ getsize.c getsectsize.c alloc_tables.c read_bb_file.c mkdir.c \
+ bb_inode.c newdir.c alloc_sb.c lookup.c dirblock.c expanddir.c \
+ dir_iterate.c link.c res_gdt.c icount.c get_pathname.c dblist.c \
+ dirhash.c version.c flushb.c unlink.c check_desc.c valid_blk.c \
+ ext_attr.c bmap.c dblist_dir.c ext2fs_inline.c
EXT2FS_SRCS := $(patsubst %,ext2fs/%, $(EXT2FS_SRC))
EXT2FS_OBJS := $(patsubst %.c,%.o, $(EXT2FS_SRCS))
UUID_SRC := compare.c gen_uuid.c pack.c parse.c unpack.c unparse.c \
- uuid_time.c
+ uuid_time.c
UUID_SRCS := $(patsubst %,uuid/%, $(UUID_SRC))
UUID_OBJS := $(patsubst %.c,%.o, $(UUID_SRCS))
/*
- * unix.c - The unix-specific code for e2fsck
- *
+ * e2fsck
+ *
+ * Copyright (C) 1993, 1994 Theodore Ts'o. This file may be
+ * redistributed under the terms of the GNU Public License.
+ *
+ */
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE 1 /* get strnlen() */
+#endif
+#include <sys/types.h>
+#include <inttypes.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <time.h>
+#include <fcntl.h>
+#include <ctype.h>
+#include <setjmp.h>
+#include <errno.h>
+#include <getopt.h>
+#include <limits.h>
+#include <stddef.h>
+#include <assert.h>
+#include <signal.h>
+#include <sys/time.h>
+#include <sys/stat.h>
+#include <sys/resource.h>
+#include <sys/param.h>
+#include <sys/mount.h>
+#include <sys/ioctl.h>
+#include <malloc.h>
+#include <termios.h>
+#include <mntent.h>
+#include <dirent.h>
+
+#include "e2fsbb.h"
+
+#include "ext2fs/ext2_fs.h"
+#include "ext2fs/ext2fs.h"
+#include "blkid/blkid.h"
+#include "ext2fs/ext2_ext_attr.h"
+#include "uuid/uuid.h"
+
+#ifdef __GNUC__
+#define _INLINE_ __inline__
+#define EXT2FS_ATTR(x) __attribute__(x)
+#else
+#define _INLINE_
+#define EXT2FS_ATTR(x)
+#endif
+
+/*
+ * Exit codes used by fsck-type programs
+ */
+#define FSCK_OK 0 /* No errors */
+#define FSCK_NONDESTRUCT 1 /* File system errors corrected */
+#define FSCK_REBOOT 2 /* System should be rebooted */
+#define FSCK_UNCORRECTED 4 /* File system errors left uncorrected */
+#define FSCK_ERROR 8 /* Operational error */
+#define FSCK_USAGE 16 /* Usage or syntax error */
+#define FSCK_CANCELED 32 /* Aborted with a signal or ^C */
+#define FSCK_LIBRARY 128 /* Shared library error */
+
+/*
+ * The last ext2fs revision level that this version of e2fsck is able to
+ * support
+ */
+#define E2FSCK_CURRENT_REV 1
+
+/*
+ * The directory information structure; stores directory information
+ * collected in earlier passes, to avoid disk i/o in fetching the
+ * directory information.
+ */
+struct dir_info {
+ ext2_ino_t ino; /* Inode number */
+ ext2_ino_t dotdot; /* Parent according to '..' */
+ ext2_ino_t parent; /* Parent according to treewalk */
+};
+
+
+/*
+ * The indexed directory information structure; stores information for
+ * directories which contain a hash tree index.
+ */
+struct dx_dir_info {
+ ext2_ino_t ino; /* Inode number */
+ int numblocks; /* number of blocks */
+ int hashversion;
+ short depth; /* depth of tree */
+ struct dx_dirblock_info *dx_block; /* Array of size numblocks */
+};
+
+#define DX_DIRBLOCK_ROOT 1
+#define DX_DIRBLOCK_LEAF 2
+#define DX_DIRBLOCK_NODE 3
+#define DX_DIRBLOCK_CORRUPT 4
+#define DX_DIRBLOCK_CLEARED 8
+
+struct dx_dirblock_info {
+ int type;
+ blk_t phys;
+ int flags;
+ blk_t parent;
+ ext2_dirhash_t min_hash;
+ ext2_dirhash_t max_hash;
+ ext2_dirhash_t node_min_hash;
+ ext2_dirhash_t node_max_hash;
+};
+
+#define DX_FLAG_REFERENCED 1
+#define DX_FLAG_DUP_REF 2
+#define DX_FLAG_FIRST 4
+#define DX_FLAG_LAST 8
+
+#ifdef RESOURCE_TRACK
+/*
+ * This structure is used for keeping track of how much resources have
+ * been used for a particular pass of e2fsck.
+ */
+struct resource_track {
+ struct timeval time_start;
+ struct timeval user_start;
+ struct timeval system_start;
+ void *brk_start;
+};
+#endif
+
+/*
+ * E2fsck options
+ */
+#define E2F_OPT_READONLY 0x0001
+#define E2F_OPT_PREEN 0x0002
+#define E2F_OPT_YES 0x0004
+#define E2F_OPT_NO 0x0008
+#define E2F_OPT_TIME 0x0010
+#define E2F_OPT_TIME2 0x0020
+#define E2F_OPT_CHECKBLOCKS 0x0040
+#define E2F_OPT_DEBUG 0x0080
+#define E2F_OPT_FORCE 0x0100
+#define E2F_OPT_WRITECHECK 0x0200
+#define E2F_OPT_COMPRESS_DIRS 0x0400
+
+/*
+ * E2fsck flags
+ */
+#define E2F_FLAG_ABORT 0x0001 /* Abort signaled */
+#define E2F_FLAG_CANCEL 0x0002 /* Cancel signaled */
+#define E2F_FLAG_SIGNAL_MASK 0x0003
+#define E2F_FLAG_RESTART 0x0004 /* Restart signaled */
+
+#define E2F_FLAG_SETJMP_OK 0x0010 /* Setjmp valid for abort */
+
+#define E2F_FLAG_PROG_BAR 0x0020 /* Progress bar on screen */
+#define E2F_FLAG_PROG_SUPPRESS 0x0040 /* Progress suspended */
+#define E2F_FLAG_JOURNAL_INODE 0x0080 /* Create a new ext3 journal inode */
+#define E2F_FLAG_SB_SPECIFIED 0x0100 /* The superblock was explicitly
+ * specified by the user */
+#define E2F_FLAG_RESTARTED 0x0200 /* E2fsck has been restarted */
+#define E2F_FLAG_RESIZE_INODE 0x0400 /* Request to recreate resize inode */
+
+/*
+ * Defines for indicating the e2fsck pass number
+ */
+#define E2F_PASS_1 1
+#define E2F_PASS_2 2
+#define E2F_PASS_3 3
+#define E2F_PASS_4 4
+#define E2F_PASS_5 5
+#define E2F_PASS_1B 6
+
+/*
+ * Define the extended attribute refcount structure
+ */
+typedef struct ea_refcount *ext2_refcount_t;
+
+/*
+ * This is the global e2fsck structure.
+ */
+typedef struct e2fsck_struct *e2fsck_t;
+
+struct e2fsck_struct {
+ ext2_filsys fs;
+ const char *program_name;
+ char *filesystem_name;
+ char *device_name;
+ char *io_options;
+ int flags; /* E2fsck internal flags */
+ int options;
+ blk_t use_superblock; /* sb requested by user */
+ blk_t superblock; /* sb used to open fs */
+ int blocksize; /* blocksize */
+ blk_t num_blocks; /* Total number of blocks */
+ int mount_flags;
+ blkid_cache blkid; /* blkid cache */
+
+ jmp_buf abort_loc;
+
+ unsigned long abort_code;
+
+ int (*progress)(e2fsck_t ctx, int pass, unsigned long cur,
+ unsigned long max);
+
+ ext2fs_inode_bitmap inode_used_map; /* Inodes which are in use */
+ ext2fs_inode_bitmap inode_bad_map; /* Inodes which are bad somehow */
+ ext2fs_inode_bitmap inode_dir_map; /* Inodes which are directories */
+ ext2fs_inode_bitmap inode_bb_map; /* Inodes which are in bad blocks */
+ ext2fs_inode_bitmap inode_imagic_map; /* AFS inodes */
+ ext2fs_inode_bitmap inode_reg_map; /* Inodes which are regular files*/
+
+ ext2fs_block_bitmap block_found_map; /* Blocks which are in use */
+ ext2fs_block_bitmap block_dup_map; /* Blks referenced more than once */
+ ext2fs_block_bitmap block_ea_map; /* Blocks which are used by EA's */
+
+ /*
+ * Inode count arrays
+ */
+ ext2_icount_t inode_count;
+ ext2_icount_t inode_link_info;
+
+ ext2_refcount_t refcount;
+ ext2_refcount_t refcount_extra;
+
+ /*
+ * Array of flags indicating whether an inode bitmap, block
+ * bitmap, or inode table is invalid
+ */
+ int *invalid_inode_bitmap_flag;
+ int *invalid_block_bitmap_flag;
+ int *invalid_inode_table_flag;
+ int invalid_bitmaps; /* There are invalid bitmaps/itable */
+
+ /*
+ * Block buffer
+ */
+ char *block_buf;
+
+ /*
+ * For pass1_check_directory and pass1_get_blocks
+ */
+ ext2_ino_t stashed_ino;
+ struct ext2_inode *stashed_inode;
+
+ /*
+ * Location of the lost and found directory
+ */
+ ext2_ino_t lost_and_found;
+ int bad_lost_and_found;
+
+ /*
+ * Directory information
+ */
+ int dir_info_count;
+ int dir_info_size;
+ struct dir_info *dir_info;
+
+ /*
+ * Indexed directory information
+ */
+ int dx_dir_info_count;
+ int dx_dir_info_size;
+ struct dx_dir_info *dx_dir_info;
+
+ /*
+ * Directories to hash
+ */
+ ext2_u32_list dirs_to_hash;
+
+ /*
+ * Tuning parameters
+ */
+ int process_inode_size;
+ int inode_buffer_blocks;
+
+ /*
+ * ext3 journal support
+ */
+ io_channel journal_io;
+ char *journal_name;
+
+#ifdef RESOURCE_TRACK
+ /*
+ * For timing purposes
+ */
+ struct resource_track global_rtrack;
+#endif
+
+ /*
+ * How we display the progress update (for unix)
+ */
+ int progress_fd;
+ int progress_pos;
+ int progress_last_percent;
+ unsigned int progress_last_time;
+ int interactive; /* Are we connected directly to a tty? */
+ char start_meta[2], stop_meta[2];
+
+ /* File counts */
+ int fs_directory_count;
+ int fs_regular_count;
+ int fs_blockdev_count;
+ int fs_chardev_count;
+ int fs_links_count;
+ int fs_symlinks_count;
+ int fs_fast_symlinks_count;
+ int fs_fifo_count;
+ int fs_total_count;
+ int fs_badblocks_count;
+ int fs_sockets_count;
+ int fs_ind_count;
+ int fs_dind_count;
+ int fs_tind_count;
+ int fs_fragmented;
+ int large_files;
+ int fs_ext_attr_inodes;
+ int fs_ext_attr_blocks;
+
+ int ext_attr_ver;
+
+ /*
+ * For the use of callers of the e2fsck functions; not used by
+ * e2fsck functions themselves.
+ */
+ void *priv_data;
+};
+
+/* Used by the region allocation code */
+typedef __u32 region_addr_t;
+typedef struct region_struct *region_t;
+
+/*
+ * Procedure declarations
+ */
+
+static void e2fsck_pass1(e2fsck_t ctx);
+static void e2fsck_pass1_dupblocks(e2fsck_t ctx, char *block_buf);
+static void e2fsck_pass2(e2fsck_t ctx);
+static void e2fsck_pass3(e2fsck_t ctx);
+static void e2fsck_pass4(e2fsck_t ctx);
+static void e2fsck_pass5(e2fsck_t ctx);
+
+/* e2fsck.c */
+static errcode_t e2fsck_allocate_context(e2fsck_t *ret);
+static errcode_t e2fsck_reset_context(e2fsck_t ctx);
+static void e2fsck_free_context(e2fsck_t ctx);
+static int e2fsck_run(e2fsck_t ctx);
+
+
+/* badblock.c */
+static void read_bad_blocks_file(e2fsck_t ctx, const char *bad_blocks_file,
+ int replace_bad_blocks);
+
+/* dirinfo.c */
+static void e2fsck_add_dir_info(e2fsck_t ctx, ext2_ino_t ino, ext2_ino_t parent);
+static struct dir_info *e2fsck_get_dir_info(e2fsck_t ctx, ext2_ino_t ino);
+static void e2fsck_free_dir_info(e2fsck_t ctx);
+static int e2fsck_get_num_dirinfo(e2fsck_t ctx);
+static struct dir_info *e2fsck_dir_info_iter(e2fsck_t ctx, int *control);
+
+/* dx_dirinfo.c */
+static void e2fsck_add_dx_dir(e2fsck_t ctx, ext2_ino_t ino, int num_blocks);
+static struct dx_dir_info *e2fsck_get_dx_dir_info(e2fsck_t ctx, ext2_ino_t ino);
+static void e2fsck_free_dx_dir_info(e2fsck_t ctx);
+static struct dx_dir_info *e2fsck_dx_dir_info_iter(e2fsck_t ctx, int *control);
+
+/* ea_refcount.c */
+static errcode_t ea_refcount_create(int size, ext2_refcount_t *ret);
+static void ea_refcount_free(ext2_refcount_t refcount);
+static errcode_t ea_refcount_increment(ext2_refcount_t refcount,
+ blk_t blk, int *ret);
+static errcode_t ea_refcount_decrement(ext2_refcount_t refcount,
+ blk_t blk, int *ret);
+static errcode_t ea_refcount_store(ext2_refcount_t refcount,
+ blk_t blk, int count);
+static void ea_refcount_intr_begin(ext2_refcount_t refcount);
+static blk_t ea_refcount_intr_next(ext2_refcount_t refcount, int *ret);
+
+/* ehandler.c */
+static const char *ehandler_operation(const char *op);
+static void ehandler_init(io_channel channel);
+
+/* journal.c */
+static int e2fsck_check_ext3_journal(e2fsck_t ctx);
+static int e2fsck_run_ext3_journal(e2fsck_t ctx);
+static void e2fsck_move_ext3_journal(e2fsck_t ctx);
+
+/* pass1.c */
+static void e2fsck_use_inode_shortcuts(e2fsck_t ctx, int bool);
+static int e2fsck_pass1_check_device_inode(ext2_filsys fs,
+ struct ext2_inode *inode);
+static int e2fsck_pass1_check_symlink(ext2_filsys fs,
+ struct ext2_inode *inode, char *buf);
+
+/* pass2.c */
+static int e2fsck_process_bad_inode(e2fsck_t ctx, ext2_ino_t dir,
+ ext2_ino_t ino, char *buf);
+
+/* pass3.c */
+static int e2fsck_reconnect_file(e2fsck_t ctx, ext2_ino_t inode);
+static errcode_t e2fsck_expand_directory(e2fsck_t ctx, ext2_ino_t dir,
+ int num, int gauranteed_size);
+static ext2_ino_t e2fsck_get_lost_and_found(e2fsck_t ctx, int fix);
+static errcode_t e2fsck_adjust_inode_count(e2fsck_t ctx, ext2_ino_t ino,
+ int adj);
+
+
+/* region.c */
+static region_t region_create(region_addr_t min, region_addr_t max);
+static void region_free(region_t region);
+static int region_allocate(region_t region, region_addr_t start, int n);
+
+/* rehash.c */
+static errcode_t e2fsck_rehash_dir(e2fsck_t ctx, ext2_ino_t ino);
+static void e2fsck_rehash_directories(e2fsck_t ctx);
+
+/* super.c */
+static void check_super_block(e2fsck_t ctx);
+static errcode_t e2fsck_get_device_size(e2fsck_t ctx);
+
+#ifdef ENABLE_SWAPFS
+/* swapfs.c */
+static void swap_filesys(e2fsck_t ctx);
+#endif
+
+/* util.c */
+static void *e2fsck_allocate_memory(e2fsck_t ctx, unsigned int size,
+ const char *description);
+static int ask(e2fsck_t ctx, const char * string, int def);
+static int ask_yn(const char * string, int def);
+static void e2fsck_read_bitmaps(e2fsck_t ctx);
+static void e2fsck_write_bitmaps(e2fsck_t ctx);
+static void preenhalt(e2fsck_t ctx);
+static char *string_copy(e2fsck_t ctx, const char *str, int len);
+#ifdef RESOURCE_TRACK
+static void print_resource_track(const char *desc,
+ struct resource_track *track);
+static void init_resource_track(struct resource_track *track);
+#endif
+static void e2fsck_read_inode(e2fsck_t ctx, unsigned long ino,
+ struct ext2_inode * inode, const char * proc);
+static void e2fsck_write_inode(e2fsck_t ctx, unsigned long ino,
+ struct ext2_inode * inode, const char * proc);
+#ifdef MTRACE
+static void mtrace_print(char *mesg);
+#endif
+static blk_t get_backup_sb(e2fsck_t ctx, ext2_filsys fs,
+ const char *name, io_manager manager);
+static int ext2_file_type(unsigned int mode);
+
+/* unix.c */
+static void e2fsck_clear_progbar(e2fsck_t ctx);
+static int e2fsck_simple_progress(e2fsck_t ctx, const char *label,
+ float percent, unsigned int dpynum);
+/*
+ * problem.h --- e2fsck problem error codes
+ */
+
+typedef __u32 problem_t;
+
+struct problem_context {
+ errcode_t errcode;
+ ext2_ino_t ino, ino2, dir;
+ struct ext2_inode *inode;
+ struct ext2_dir_entry *dirent;
+ blk_t blk, blk2;
+ e2_blkcnt_t blkcount;
+ int group;
+ __u64 num;
+ const char *str;
+};
+
+/*
+ * We define a set of "latch groups"; these are problems which are
+ * handled as a set. The user answers once for a particular latch
+ * group.
+ */
+#define PR_LATCH_MASK 0x0ff0 /* Latch mask */
+#define PR_LATCH_BLOCK 0x0010 /* Latch for illegal blocks (pass 1) */
+#define PR_LATCH_BBLOCK 0x0020 /* Latch for bad block inode blocks (pass 1) */
+#define PR_LATCH_IBITMAP 0x0030 /* Latch for pass 5 inode bitmap proc. */
+#define PR_LATCH_BBITMAP 0x0040 /* Latch for pass 5 inode bitmap proc. */
+#define PR_LATCH_RELOC 0x0050 /* Latch for superblock relocate hint */
+#define PR_LATCH_DBLOCK 0x0060 /* Latch for pass 1b dup block headers */
+#define PR_LATCH_LOW_DTIME 0x0070 /* Latch for pass1 orphaned list refugees */
+#define PR_LATCH_TOOBIG 0x0080 /* Latch for file to big errors */
+#define PR_LATCH_OPTIMIZE_DIR 0x0090 /* Latch for optimize directories */
+
+#define PR_LATCH(x) ((((x) & PR_LATCH_MASK) >> 4) - 1)
+
+/*
+ * Latch group descriptor flags
+ */
+#define PRL_YES 0x0001 /* Answer yes */
+#define PRL_NO 0x0002 /* Answer no */
+#define PRL_LATCHED 0x0004 /* The latch group is latched */
+#define PRL_SUPPRESS 0x0008 /* Suppress all latch group questions */
+
+#define PRL_VARIABLE 0x000f /* All the flags that need to be reset */
+
+/*
+ * Pre-Pass 1 errors
+ */
+
+/* Block bitmap not in group */
+#define PR_0_BB_NOT_GROUP 0x000001
+
+/* Inode bitmap not in group */
+#define PR_0_IB_NOT_GROUP 0x000002
+
+/* Inode table not in group */
+#define PR_0_ITABLE_NOT_GROUP 0x000003
+
+/* Superblock corrupt */
+#define PR_0_SB_CORRUPT 0x000004
+
+/* Filesystem size is wrong */
+#define PR_0_FS_SIZE_WRONG 0x000005
+
+/* Fragments not supported */
+#define PR_0_NO_FRAGMENTS 0x000006
+
+/* Bad blocks_per_group */
+#define PR_0_BLOCKS_PER_GROUP 0x000007
+
+/* Bad first_data_block */
+#define PR_0_FIRST_DATA_BLOCK 0x000008
+
+/* Adding UUID to filesystem */
+#define PR_0_ADD_UUID 0x000009
+
+/* Relocate hint */
+#define PR_0_RELOCATE_HINT 0x00000A
+
+/* Miscellaneous superblock corruption */
+#define PR_0_MISC_CORRUPT_SUPER 0x00000B
+
+/* Error determing physical device size of filesystem */
+#define PR_0_GETSIZE_ERROR 0x00000C
+
+/* Inode count in the superblock incorrect */
+#define PR_0_INODE_COUNT_WRONG 0x00000D
+
+/* The Hurd does not support the filetype feature */
+#define PR_0_HURD_CLEAR_FILETYPE 0x00000E
+
+/* Journal inode is invalid */
+#define PR_0_JOURNAL_BAD_INODE 0x00000F
+
+/* The external journal has multiple filesystems (which we can't handle yet) */
+#define PR_0_JOURNAL_UNSUPP_MULTIFS 0x000010
+
+/* Can't find external journal */
+#define PR_0_CANT_FIND_JOURNAL 0x000011
+
+/* External journal has bad superblock */
+#define PR_0_EXT_JOURNAL_BAD_SUPER 0x000012
+
+/* Superblock has a bad journal UUID */
+#define PR_0_JOURNAL_BAD_UUID 0x000013
+
+/* Journal has an unknown superblock type */
+#define PR_0_JOURNAL_UNSUPP_SUPER 0x000014
+
+/* Journal superblock is corrupt */
+#define PR_0_JOURNAL_BAD_SUPER 0x000015
+
+/* Journal superblock is corrupt */
+#define PR_0_JOURNAL_HAS_JOURNAL 0x000016
+
+/* Superblock has recovery flag set but no journal */
+#define PR_0_JOURNAL_RECOVER_SET 0x000017
+
+/* Journal has data, but recovery flag is clear */
+#define PR_0_JOURNAL_RECOVERY_CLEAR 0x000018
+
+/* Ask if we should clear the journal */
+#define PR_0_JOURNAL_RESET_JOURNAL 0x000019
+
+/* Filesystem revision is 0, but feature flags are set */
+#define PR_0_FS_REV_LEVEL 0x00001A
+
+/* Clearing orphan inode */
+#define PR_0_ORPHAN_CLEAR_INODE 0x000020
+
+/* Illegal block found in orphaned inode */
+#define PR_0_ORPHAN_ILLEGAL_BLOCK_NUM 0x000021
+
+/* Already cleared block found in orphaned inode */
+#define PR_0_ORPHAN_ALREADY_CLEARED_BLOCK 0x000022
+
+/* Illegal orphan inode in superblock */
+#define PR_0_ORPHAN_ILLEGAL_HEAD_INODE 0x000023
+
+/* Illegal inode in orphaned inode list */
+#define PR_0_ORPHAN_ILLEGAL_INODE 0x000024
+
+/* Journal has unsupported read-only feature - abort */
+#define PR_0_JOURNAL_UNSUPP_ROCOMPAT 0x000025
+
+/* Journal has unsupported incompatible feature - abort */
+#define PR_0_JOURNAL_UNSUPP_INCOMPAT 0x000026
+
+/* Journal has unsupported version number */
+#define PR_0_JOURNAL_UNSUPP_VERSION 0x000027
+
+/* Moving journal to hidden file */
+#define PR_0_MOVE_JOURNAL 0x000028
+
+/* Error moving journal */
+#define PR_0_ERR_MOVE_JOURNAL 0x000029
+
+/* Clearing V2 journal superblock */
+#define PR_0_CLEAR_V2_JOURNAL 0x00002A
+
+/* Run journal anyway */
+#define PR_0_JOURNAL_RUN 0x00002B
+
+/* Run journal anyway by default */
+#define PR_0_JOURNAL_RUN_DEFAULT 0x00002C
+
+/* Backup journal inode blocks */
+#define PR_0_BACKUP_JNL 0x00002D
+
+/* Reserved blocks w/o resize_inode */
+#define PR_0_NONZERO_RESERVED_GDT_BLOCKS 0x00002E
+
+/* Resize_inode not enabled, but resize inode is non-zero */
+#define PR_0_CLEAR_RESIZE_INODE 0x00002F
+
+/* Resize inode invalid */
+#define PR_0_RESIZE_INODE_INVALID 0x000030
+
+/*
+ * Pass 1 errors
+ */
+
+/* Pass 1: Checking inodes, blocks, and sizes */
+#define PR_1_PASS_HEADER 0x010000
+
+/* Root directory is not an inode */
+#define PR_1_ROOT_NO_DIR 0x010001
+
+/* Root directory has dtime set */
+#define PR_1_ROOT_DTIME 0x010002
+
+/* Reserved inode has bad mode */
+#define PR_1_RESERVED_BAD_MODE 0x010003
+
+/* Deleted inode has zero dtime */
+#define PR_1_ZERO_DTIME 0x010004
+
+/* Inode in use, but dtime set */
+#define PR_1_SET_DTIME 0x010005
+
+/* Zero-length directory */
+#define PR_1_ZERO_LENGTH_DIR 0x010006
+
+/* Block bitmap conflicts with some other fs block */
+#define PR_1_BB_CONFLICT 0x010007
+
+/* Inode bitmap conflicts with some other fs block */
+#define PR_1_IB_CONFLICT 0x010008
+
+/* Inode table conflicts with some other fs block */
+#define PR_1_ITABLE_CONFLICT 0x010009
+
+/* Block bitmap is on a bad block */
+#define PR_1_BB_BAD_BLOCK 0x01000A
+
+/* Inode bitmap is on a bad block */
+#define PR_1_IB_BAD_BLOCK 0x01000B
+
+/* Inode has incorrect i_size */
+#define PR_1_BAD_I_SIZE 0x01000C
+
+/* Inode has incorrect i_blocks */
+#define PR_1_BAD_I_BLOCKS 0x01000D
+
+/* Illegal block number in inode */
+#define PR_1_ILLEGAL_BLOCK_NUM 0x01000E
+
+/* Block number overlaps fs metadata */
+#define PR_1_BLOCK_OVERLAPS_METADATA 0x01000F
+
+/* Inode has illegal blocks (latch question) */
+#define PR_1_INODE_BLOCK_LATCH 0x010010
+
+/* Too many bad blocks in inode */
+#define PR_1_TOO_MANY_BAD_BLOCKS 0x010011
+
+/* Illegal block number in bad block inode */
+#define PR_1_BB_ILLEGAL_BLOCK_NUM 0x010012
+
+/* Bad block inode has illegal blocks (latch question) */
+#define PR_1_INODE_BBLOCK_LATCH 0x010013
+
+/* Duplicate or bad blocks in use! */
+#define PR_1_DUP_BLOCKS_PREENSTOP 0x010014
+
+/* Bad block used as bad block indirect block */
+#define PR_1_BBINODE_BAD_METABLOCK 0x010015
+
+/* Inconsistency can't be fixed prompt */
+#define PR_1_BBINODE_BAD_METABLOCK_PROMPT 0x010016
+
+/* Bad primary block */
+#define PR_1_BAD_PRIMARY_BLOCK 0x010017
+
+/* Bad primary block prompt */
+#define PR_1_BAD_PRIMARY_BLOCK_PROMPT 0x010018
+
+/* Bad primary superblock */
+#define PR_1_BAD_PRIMARY_SUPERBLOCK 0x010019
+
+/* Bad primary block group descriptors */
+#define PR_1_BAD_PRIMARY_GROUP_DESCRIPTOR 0x01001A
+
+/* Bad superblock in group */
+#define PR_1_BAD_SUPERBLOCK 0x01001B
+
+/* Bad block group descriptors in group */
+#define PR_1_BAD_GROUP_DESCRIPTORS 0x01001C
+
+/* Block claimed for no reason */
+#define PR_1_PROGERR_CLAIMED_BLOCK 0x01001D
+
+/* Error allocating blocks for relocating metadata */
+#define PR_1_RELOC_BLOCK_ALLOCATE 0x01001E
+
+/* Error allocating block buffer during relocation process */
+#define PR_1_RELOC_MEMORY_ALLOCATE 0x01001F
+
+/* Relocating metadata group information from X to Y */
+#define PR_1_RELOC_FROM_TO 0x010020
+
+/* Relocating metatdata group information to X */
+#define PR_1_RELOC_TO 0x010021
+
+/* Block read error during relocation process */
+#define PR_1_RELOC_READ_ERR 0x010022
+
+/* Block write error during relocation process */
+#define PR_1_RELOC_WRITE_ERR 0x010023
+
+/* Error allocating inode bitmap */
+#define PR_1_ALLOCATE_IBITMAP_ERROR 0x010024
+
+/* Error allocating block bitmap */
+#define PR_1_ALLOCATE_BBITMAP_ERROR 0x010025
+
+/* Error allocating icount structure */
+#define PR_1_ALLOCATE_ICOUNT 0x010026
+
+/* Error allocating dbcount */
+#define PR_1_ALLOCATE_DBCOUNT 0x010027
+
+/* Error while scanning inodes */
+#define PR_1_ISCAN_ERROR 0x010028
+
+/* Error while iterating over blocks */
+#define PR_1_BLOCK_ITERATE 0x010029
+
+/* Error while storing inode count information */
+#define PR_1_ICOUNT_STORE 0x01002A
+
+/* Error while storing directory block information */
+#define PR_1_ADD_DBLOCK 0x01002B
+
+/* Error while reading inode (for clearing) */
+#define PR_1_READ_INODE 0x01002C
+
+/* Suppress messages prompt */
+#define PR_1_SUPPRESS_MESSAGES 0x01002D
+
+/* Imagic flag set on an inode when filesystem doesn't support it */
+#define PR_1_SET_IMAGIC 0x01002F
+
+/* Immutable flag set on a device or socket inode */
+#define PR_1_SET_IMMUTABLE 0x010030
+
+/* Compression flag set on a non-compressed filesystem */
+#define PR_1_COMPR_SET 0x010031
+
+/* Non-zero size on on device, fifo or socket inode */
+#define PR_1_SET_NONZSIZE 0x010032
+
+/* Filesystem revision is 0, but feature flags are set */
+#define PR_1_FS_REV_LEVEL 0x010033
+
+/* Journal inode not in use, needs clearing */
+#define PR_1_JOURNAL_INODE_NOT_CLEAR 0x010034
+
+/* Journal inode has wrong mode */
+#define PR_1_JOURNAL_BAD_MODE 0x010035
+
+/* Inode that was part of orphan linked list */
+#define PR_1_LOW_DTIME 0x010036
+
+/* Latch question which asks how to deal with low dtime inodes */
+#define PR_1_ORPHAN_LIST_REFUGEES 0x010037
+
+/* Error allocating refcount structure */
+#define PR_1_ALLOCATE_REFCOUNT 0x010038
+
+/* Error reading Extended Attribute block */
+#define PR_1_READ_EA_BLOCK 0x010039
+
+/* Invalid Extended Attribute block */
+#define PR_1_BAD_EA_BLOCK 0x01003A
+
+/* Error reading Extended Attribute block while fixing refcount -- abort */
+#define PR_1_EXTATTR_READ_ABORT 0x01003B
+
+/* Extended attribute reference count incorrect */
+#define PR_1_EXTATTR_REFCOUNT 0x01003C
+
+/* Error writing Extended Attribute block while fixing refcount */
+#define PR_1_EXTATTR_WRITE 0x01003D
+
+/* Multiple EA blocks not supported */
+#define PR_1_EA_MULTI_BLOCK 0x01003E
+
+/* Error allocating EA region allocation structure */
+#define PR_1_EA_ALLOC_REGION 0x01003F
+
+/* Error EA allocation collision */
+#define PR_1_EA_ALLOC_COLLISION 0x010040
+
+/* Bad extended attribute name */
+#define PR_1_EA_BAD_NAME 0x010041
+
+/* Bad extended attribute value */
+#define PR_1_EA_BAD_VALUE 0x010042
+
+/* Inode too big (latch question) */
+#define PR_1_INODE_TOOBIG 0x010043
+
+/* Directory too big */
+#define PR_1_TOOBIG_DIR 0x010044
+
+/* Regular file too big */
+#define PR_1_TOOBIG_REG 0x010045
+
+/* Symlink too big */
+#define PR_1_TOOBIG_SYMLINK 0x010046
+
+/* INDEX_FL flag set on a non-HTREE filesystem */
+#define PR_1_HTREE_SET 0x010047
+
+/* INDEX_FL flag set on a non-directory */
+#define PR_1_HTREE_NODIR 0x010048
+
+/* Invalid root node in HTREE directory */
+#define PR_1_HTREE_BADROOT 0x010049
+
+/* Unsupported hash version in HTREE directory */
+#define PR_1_HTREE_HASHV 0x01004A
+
+/* Incompatible flag in HTREE root node */
+#define PR_1_HTREE_INCOMPAT 0x01004B
+
+/* HTREE too deep */
+#define PR_1_HTREE_DEPTH 0x01004C
+
+/* Bad block has indirect block that conflicts with filesystem block */
+#define PR_1_BB_FS_BLOCK 0x01004D
+
+/* Resize inode failed */
+#define PR_1_RESIZE_INODE_CREATE 0x01004E
+
+/* inode->i_size is too long */
+#define PR_1_EXTRA_ISIZE 0x01004F
+
+/* attribute name is too long */
+#define PR_1_ATTR_NAME_LEN 0x010050
+
+/* wrong EA value offset */
+#define PR_1_ATTR_VALUE_OFFSET 0x010051
+
+/* wrong EA blocknumber */
+#define PR_1_ATTR_VALUE_BLOCK 0x010052
+
+/* wrong EA value size */
+#define PR_1_ATTR_VALUE_SIZE 0x010053
+
+/* wrong EA hash value */
+#define PR_1_ATTR_HASH 0x010054
+
+/*
+ * Pass 1b errors
+ */
+
+/* Pass 1B: Rescan for duplicate/bad blocks */
+#define PR_1B_PASS_HEADER 0x011000
+
+/* Duplicate/bad block(s) header */
+#define PR_1B_DUP_BLOCK_HEADER 0x011001
+
+/* Duplicate/bad block(s) in inode */
+#define PR_1B_DUP_BLOCK 0x011002
+
+/* Duplicate/bad block(s) end */
+#define PR_1B_DUP_BLOCK_END 0x011003
+
+/* Error while scanning inodes */
+#define PR_1B_ISCAN_ERROR 0x011004
+
+/* Error allocating inode bitmap */
+#define PR_1B_ALLOCATE_IBITMAP_ERROR 0x011005
+
+/* Error while iterating over blocks */
+#define PR_1B_BLOCK_ITERATE 0x0110006
+
+/* Error adjusting EA refcount */
+#define PR_1B_ADJ_EA_REFCOUNT 0x0110007
+
+
+/* Pass 1C: Scan directories for inodes with dup blocks. */
+#define PR_1C_PASS_HEADER 0x012000
+
+
+/* Pass 1D: Reconciling duplicate blocks */
+#define PR_1D_PASS_HEADER 0x013000
+
+/* File has duplicate blocks */
+#define PR_1D_DUP_FILE 0x013001
+
+/* List of files sharing duplicate blocks */
+#define PR_1D_DUP_FILE_LIST 0x013002
+
+/* File sharing blocks with filesystem metadata */
+#define PR_1D_SHARE_METADATA 0x013003
+
+/* Report of how many duplicate/bad inodes */
+#define PR_1D_NUM_DUP_INODES 0x013004
+
+/* Duplicated blocks already reassigned or cloned. */
+#define PR_1D_DUP_BLOCKS_DEALT 0x013005
+
+/* Clone duplicate/bad blocks? */
+#define PR_1D_CLONE_QUESTION 0x013006
+
+/* Delete file? */
+#define PR_1D_DELETE_QUESTION 0x013007
+
+/* Couldn't clone file (error) */
+#define PR_1D_CLONE_ERROR 0x013008
+
+/*
+ * Pass 2 errors
+ */
+
+/* Pass 2: Checking directory structure */
+#define PR_2_PASS_HEADER 0x020000
+
+/* Bad inode number for '.' */
+#define PR_2_BAD_INODE_DOT 0x020001
+
+/* Directory entry has bad inode number */
+#define PR_2_BAD_INO 0x020002
+
+/* Directory entry has deleted or unused inode */
+#define PR_2_UNUSED_INODE 0x020003
+
+/* Directry entry is link to '.' */
+#define PR_2_LINK_DOT 0x020004
+
+/* Directory entry points to inode now located in a bad block */
+#define PR_2_BB_INODE 0x020005
+
+/* Directory entry contains a link to a directory */
+#define PR_2_LINK_DIR 0x020006
+
+/* Directory entry contains a link to the root directry */
+#define PR_2_LINK_ROOT 0x020007
+
+/* Directory entry has illegal characters in its name */
+#define PR_2_BAD_NAME 0x020008
+
+/* Missing '.' in directory inode */
+#define PR_2_MISSING_DOT 0x020009
+
+/* Missing '..' in directory inode */
+#define PR_2_MISSING_DOT_DOT 0x02000A
+
+/* First entry in directory inode doesn't contain '.' */
+#define PR_2_1ST_NOT_DOT 0x02000B
+
+/* Second entry in directory inode doesn't contain '..' */
+#define PR_2_2ND_NOT_DOT_DOT 0x02000C
+
+/* i_faddr should be zero */
+#define PR_2_FADDR_ZERO 0x02000D
+
+/* i_file_acl should be zero */
+#define PR_2_FILE_ACL_ZERO 0x02000E
+
+/* i_dir_acl should be zero */
+#define PR_2_DIR_ACL_ZERO 0x02000F
+
+/* i_frag should be zero */
+#define PR_2_FRAG_ZERO 0x020010
+
+/* i_fsize should be zero */
+#define PR_2_FSIZE_ZERO 0x020011
+
+/* inode has bad mode */
+#define PR_2_BAD_MODE 0x020012
+
+/* directory corrupted */
+#define PR_2_DIR_CORRUPTED 0x020013
+
+/* filename too long */
+#define PR_2_FILENAME_LONG 0x020014
+
+/* Directory inode has a missing block (hole) */
+#define PR_2_DIRECTORY_HOLE 0x020015
+
+/* '.' is not NULL terminated */
+#define PR_2_DOT_NULL_TERM 0x020016
+
+/* '..' is not NULL terminated */
+#define PR_2_DOT_DOT_NULL_TERM 0x020017
+
+/* Illegal character device in inode */
+#define PR_2_BAD_CHAR_DEV 0x020018
+
+/* Illegal block device in inode */
+#define PR_2_BAD_BLOCK_DEV 0x020019
+
+/* Duplicate '.' entry */
+#define PR_2_DUP_DOT 0x02001A
+
+/* Duplicate '..' entry */
+#define PR_2_DUP_DOT_DOT 0x02001B
+
+/* Internal error: couldn't find dir_info */
+#define PR_2_NO_DIRINFO 0x02001C
+
+/* Final rec_len is wrong */
+#define PR_2_FINAL_RECLEN 0x02001D
+
+/* Error allocating icount structure */
+#define PR_2_ALLOCATE_ICOUNT 0x02001E
+
+/* Error iterating over directory blocks */
+#define PR_2_DBLIST_ITERATE 0x02001F
+
+/* Error reading directory block */
+#define PR_2_READ_DIRBLOCK 0x020020
+
+/* Error writing directory block */
+#define PR_2_WRITE_DIRBLOCK 0x020021
+
+/* Error allocating new directory block */
+#define PR_2_ALLOC_DIRBOCK 0x020022
+
+/* Error deallocating inode */
+#define PR_2_DEALLOC_INODE 0x020023
+
+/* Directory entry for '.' is big. Split? */
+#define PR_2_SPLIT_DOT 0x020024
+
+/* Illegal FIFO */
+#define PR_2_BAD_FIFO 0x020025
+
+/* Illegal socket */
+#define PR_2_BAD_SOCKET 0x020026
+
+/* Directory filetype not set */
+#define PR_2_SET_FILETYPE 0x020027
+
+/* Directory filetype incorrect */
+#define PR_2_BAD_FILETYPE 0x020028
+
+/* Directory filetype set when it shouldn't be */
+#define PR_2_CLEAR_FILETYPE 0x020029
+
+/* Directory filename can't be zero-length */
+#define PR_2_NULL_NAME 0x020030
+
+/* Invalid symlink */
+#define PR_2_INVALID_SYMLINK 0x020031
+
+/* i_file_acl (extended attribute) is bad */
+#define PR_2_FILE_ACL_BAD 0x020032
+
+/* Filesystem contains large files, but has no such flag in sb */
+#define PR_2_FEATURE_LARGE_FILES 0x020033
+
+/* Node in HTREE directory not referenced */
+#define PR_2_HTREE_NOTREF 0x020034
+
+/* Node in HTREE directory referenced twice */
+#define PR_2_HTREE_DUPREF 0x020035
+
+/* Node in HTREE directory has bad min hash */
+#define PR_2_HTREE_MIN_HASH 0x020036
+
+/* Node in HTREE directory has bad max hash */
+#define PR_2_HTREE_MAX_HASH 0x020037
+
+/* Clear invalid HTREE directory */
+#define PR_2_HTREE_CLEAR 0x020038
+
+/* Clear the htree flag forcibly */
+/* #define PR_2_HTREE_FCLR 0x020039 */
+
+/* Bad block in htree interior node */
+#define PR_2_HTREE_BADBLK 0x02003A
+
+/* Error adjusting EA refcount */
+#define PR_2_ADJ_EA_REFCOUNT 0x02003B
+
+/* Invalid HTREE root node */
+#define PR_2_HTREE_BAD_ROOT 0x02003C
+
+/* Invalid HTREE limit */
+#define PR_2_HTREE_BAD_LIMIT 0x02003D
+
+/* Invalid HTREE count */
+#define PR_2_HTREE_BAD_COUNT 0x02003E
+
+/* HTREE interior node has out-of-order hashes in table */
+#define PR_2_HTREE_HASH_ORDER 0x02003F
+
+/* Node in HTREE directory has bad depth */
+#define PR_2_HTREE_BAD_DEPTH 0x020040
+
+/* Duplicate directory entry found */
+#define PR_2_DUPLICATE_DIRENT 0x020041
+
+/* Non-unique filename found */
+#define PR_2_NON_UNIQUE_FILE 0x020042
+
+/* Duplicate directory entry found */
+#define PR_2_REPORT_DUP_DIRENT 0x020043
+
+/*
+ * Pass 3 errors
+ */
+
+/* Pass 3: Checking directory connectivity */
+#define PR_3_PASS_HEADER 0x030000
+
+/* Root inode not allocated */
+#define PR_3_NO_ROOT_INODE 0x030001
+
+/* No room in lost+found */
+#define PR_3_EXPAND_LF_DIR 0x030002
+
+/* Unconnected directory inode */
+#define PR_3_UNCONNECTED_DIR 0x030003
+
+/* /lost+found not found */
+#define PR_3_NO_LF_DIR 0x030004
+
+/* .. entry is incorrect */
+#define PR_3_BAD_DOT_DOT 0x030005
+
+/* Bad or non-existent /lost+found. Cannot reconnect */
+#define PR_3_NO_LPF 0x030006
+
+/* Could not expand /lost+found */
+#define PR_3_CANT_EXPAND_LPF 0x030007
+
+/* Could not reconnect inode */
+#define PR_3_CANT_RECONNECT 0x030008
+
+/* Error while trying to find /lost+found */
+#define PR_3_ERR_FIND_LPF 0x030009
+
+/* Error in ext2fs_new_block while creating /lost+found */
+#define PR_3_ERR_LPF_NEW_BLOCK 0x03000A
+
+/* Error in ext2fs_new_inode while creating /lost+found */
+#define PR_3_ERR_LPF_NEW_INODE 0x03000B
+
+/* Error in ext2fs_new_dir_block while creating /lost+found */
+#define PR_3_ERR_LPF_NEW_DIR_BLOCK 0x03000C
+
+/* Error while writing directory block for /lost+found */
+#define PR_3_ERR_LPF_WRITE_BLOCK 0x03000D
+
+/* Error while adjusting inode count */
+#define PR_3_ADJUST_INODE 0x03000E
+
+/* Couldn't fix parent directory -- error */
+#define PR_3_FIX_PARENT_ERR 0x03000F
+
+/* Couldn't fix parent directory -- couldn't find it */
+#define PR_3_FIX_PARENT_NOFIND 0x030010
+
+/* Error allocating inode bitmap */
+#define PR_3_ALLOCATE_IBITMAP_ERROR 0x030011
+
+/* Error creating root directory */
+#define PR_3_CREATE_ROOT_ERROR 0x030012
+
+/* Error creating lost and found directory */
+#define PR_3_CREATE_LPF_ERROR 0x030013
+
+/* Root inode is not directory; aborting */
+#define PR_3_ROOT_NOT_DIR_ABORT 0x030014
+
+/* Cannot proceed without a root inode. */
+#define PR_3_NO_ROOT_INODE_ABORT 0x030015
+
+/* Internal error: couldn't find dir_info */
+#define PR_3_NO_DIRINFO 0x030016
+
+/* Lost+found is not a directory */
+#define PR_3_LPF_NOTDIR 0x030017
+
+/*
+ * Pass 3a --- rehashing diretories
+ */
+/* Pass 3a: Reindexing directories */
+#define PR_3A_PASS_HEADER 0x031000
+
+/* Error iterating over directories */
+#define PR_3A_OPTIMIZE_ITER 0x031001
+
+/* Error rehash directory */
+#define PR_3A_OPTIMIZE_DIR_ERR 0x031002
+
+/* Rehashing dir header */
+#define PR_3A_OPTIMIZE_DIR_HEADER 0x031003
+
+/* Rehashing directory %d */
+#define PR_3A_OPTIMIZE_DIR 0x031004
+
+/* Rehashing dir end */
+#define PR_3A_OPTIMIZE_DIR_END 0x031005
+
+/*
+ * Pass 4 errors
+ */
+
+/* Pass 4: Checking reference counts */
+#define PR_4_PASS_HEADER 0x040000
+
+/* Unattached zero-length inode */
+#define PR_4_ZERO_LEN_INODE 0x040001
+
+/* Unattached inode */
+#define PR_4_UNATTACHED_INODE 0x040002
+
+/* Inode ref count wrong */
+#define PR_4_BAD_REF_COUNT 0x040003
+
+/* Inconsistent inode count information cached */
+#define PR_4_INCONSISTENT_COUNT 0x040004
+
+/*
+ * Pass 5 errors
+ */
+
+/* Pass 5: Checking group summary information */
+#define PR_5_PASS_HEADER 0x050000
+
+/* Padding at end of inode bitmap is not set. */
+#define PR_5_INODE_BMAP_PADDING 0x050001
+
+/* Padding at end of block bitmap is not set. */
+#define PR_5_BLOCK_BMAP_PADDING 0x050002
+
+/* Block bitmap differences header */
+#define PR_5_BLOCK_BITMAP_HEADER 0x050003
+
+/* Block not used, but marked in bitmap */
+#define PR_5_BLOCK_UNUSED 0x050004
+
+/* Block used, but not marked used in bitmap */
+#define PR_5_BLOCK_USED 0x050005
+
+/* Block bitmap differences end */
+#define PR_5_BLOCK_BITMAP_END 0x050006
+
+/* Inode bitmap differences header */
+#define PR_5_INODE_BITMAP_HEADER 0x050007
+
+/* Inode not used, but marked in bitmap */
+#define PR_5_INODE_UNUSED 0x050008
+
+/* Inode used, but not marked used in bitmap */
+#define PR_5_INODE_USED 0x050009
+
+/* Inode bitmap differences end */
+#define PR_5_INODE_BITMAP_END 0x05000A
+
+/* Free inodes count for group wrong */
+#define PR_5_FREE_INODE_COUNT_GROUP 0x05000B
+
+/* Directories count for group wrong */
+#define PR_5_FREE_DIR_COUNT_GROUP 0x05000C
+
+/* Free inodes count wrong */
+#define PR_5_FREE_INODE_COUNT 0x05000D
+
+/* Free blocks count for group wrong */
+#define PR_5_FREE_BLOCK_COUNT_GROUP 0x05000E
+
+/* Free blocks count wrong */
+#define PR_5_FREE_BLOCK_COUNT 0x05000F
+
+/* Programming error: bitmap endpoints don't match */
+#define PR_5_BMAP_ENDPOINTS 0x050010
+
+/* Internal error: fudging end of bitmap */
+#define PR_5_FUDGE_BITMAP_ERROR 0x050011
+
+/* Error copying in replacement inode bitmap */
+#define PR_5_COPY_IBITMAP_ERROR 0x050012
+
+/* Error copying in replacement block bitmap */
+#define PR_5_COPY_BBITMAP_ERROR 0x050013
+
+/* Block range not used, but marked in bitmap */
+#define PR_5_BLOCK_RANGE_UNUSED 0x050014
+
+/* Block range used, but not marked used in bitmap */
+#define PR_5_BLOCK_RANGE_USED 0x050015
+
+/* Inode range not used, but marked in bitmap */
+#define PR_5_INODE_RANGE_UNUSED 0x050016
+
+/* Inode rangeused, but not marked used in bitmap */
+#define PR_5_INODE_RANGE_USED 0x050017
+
+/*
+ * Function declarations
+ */
+static int fix_problem(e2fsck_t ctx, problem_t code, struct problem_context *pctx);
+static int end_problem_latch(e2fsck_t ctx, int mask);
+static int set_latch_flags(int mask, int setflags, int clearflags);
+static void clear_problem_context(struct problem_context *ctx);
+
+/* message.c */
+static void print_e2fsck_message(e2fsck_t ctx, const char *msg,
+ struct problem_context *pctx, int first);
+
+/*
+ * Dictionary Abstract Data Type
+ * Copyright (C) 1997 Kaz Kylheku <kaz@ashi.footprints.net>
+ *
+ * Free Software License:
+ *
+ * All rights are reserved by the author, with the following exceptions:
+ * Permission is granted to freely reproduce and distribute this software,
+ * possibly in exchange for a fee, provided that this copyright notice appears
+ * intact. Permission is also granted to adapt this software to produce
+ * derivative works, as long as the modified versions carry this copyright
+ * notice and additional notices stating that the work has been modified.
+ * This source code may be translated into executable form and incorporated
+ * into proprietary software; there is no requirement for such software to
+ * contain a copyright notice related to this source.
+ *
+ * $Id: dict.h,v 1.22.2.6 2000/11/13 01:36:44 kaz Exp $
+ * $Name: kazlib_1_20 $
+ */
+
+#ifndef DICT_H
+#define DICT_H
+
+/*
+ * Blurb for inclusion into C++ translation units
+ */
+
+typedef unsigned long dictcount_t;
+#define DICTCOUNT_T_MAX ULONG_MAX
+
+/*
+ * The dictionary is implemented as a red-black tree
+ */
+
+typedef enum { dnode_red, dnode_black } dnode_color_t;
+
+typedef struct dnode_t {
+ struct dnode_t *dict_left;
+ struct dnode_t *dict_right;
+ struct dnode_t *dict_parent;
+ dnode_color_t dict_color;
+ const void *dict_key;
+ void *dict_data;
+} dnode_t;
+
+typedef int (*dict_comp_t)(const void *, const void *);
+typedef dnode_t *(*dnode_alloc_t)(void *);
+typedef void (*dnode_free_t)(dnode_t *, void *);
+
+typedef struct dict_t {
+ dnode_t dict_nilnode;
+ dictcount_t dict_nodecount;
+ dictcount_t dict_maxcount;
+ dict_comp_t dict_compare;
+ dnode_alloc_t dict_allocnode;
+ dnode_free_t dict_freenode;
+ void *dict_context;
+ int dict_dupes;
+} dict_t;
+
+typedef void (*dnode_process_t)(dict_t *, dnode_t *, void *);
+
+typedef struct dict_load_t {
+ dict_t *dict_dictptr;
+ dnode_t dict_nilnode;
+} dict_load_t;
+
+static void dict_set_allocator(dict_t *, dnode_alloc_t, dnode_free_t, void *);
+static void dict_free_nodes(dict_t *);
+static dict_t *dict_init(dict_t *, dictcount_t, dict_comp_t);
+static dnode_t *dict_lookup(dict_t *, const void *);
+static void dict_insert(dict_t *, dnode_t *, const void *);
+static int dict_alloc_insert(dict_t *, const void *, void *);
+static dnode_t *dict_first(dict_t *);
+static dnode_t *dict_next(dict_t *, dnode_t *);
+static dictcount_t dict_count(dict_t *);
+static dnode_t *dnode_init(dnode_t *, void *);
+static void *dnode_get(dnode_t *);
+static const void *dnode_getkey(dnode_t *);
+
+#define dict_count(D) ((D)->dict_nodecount)
+#define dnode_get(N) ((N)->dict_data)
+#define dnode_getkey(N) ((N)->dict_key)
+
+#endif
+
+/*
+ * Compatibility header file for e2fsck which should be included
+ * instead of linux/jfs.h
+ *
+ * Copyright (C) 2000 Stephen C. Tweedie
+ */
+
+/*
+ * Pull in the definition of the e2fsck context structure
+ */
+
+
+struct buffer_head {
+ char b_data[8192];
+ e2fsck_t b_ctx;
+ io_channel b_io;
+ int b_size;
+ blk_t b_blocknr;
+ int b_dirty;
+ int b_uptodate;
+ int b_err;
+};
+
+struct inode {
+ e2fsck_t i_ctx;
+ ext2_ino_t i_ino;
+ struct ext2_inode i_ext2;
+};
+
+struct kdev_s {
+ e2fsck_t k_ctx;
+ int k_dev;
+};
+
+#define K_DEV_FS 1
+#define K_DEV_JOURNAL 2
+
+typedef struct kdev_s *kdev_t;
+
+#define lock_buffer(bh) do {} while(0)
+#define unlock_buffer(bh) do {} while(0)
+#define buffer_req(bh) 1
+#define do_readahead(journal, start) do {} while(0)
+
+static e2fsck_t e2fsck_global_ctx; /* Try your very best not to use this! */
+
+typedef struct {
+ int object_length;
+} kmem_cache_t;
+
+#define kmem_cache_alloc(cache,flags) malloc((cache)->object_length)
+#define kmem_cache_free(cache,obj) free(obj)
+#define kmem_cache_create(name,len,a,b,c,d) do_cache_create(len)
+#define kmem_cache_destroy(cache) do_cache_destroy(cache)
+#define kmalloc(len,flags) malloc(len)
+#define kfree(p) free(p)
+
+/*
+ * We use the standard libext2fs portability tricks for inline
+ * functions.
+ */
+
+static _INLINE_ kmem_cache_t * do_cache_create(int len)
+{
+ kmem_cache_t *new_cache;
+ new_cache = malloc(sizeof(*new_cache));
+ if (new_cache)
+ new_cache->object_length = len;
+ return new_cache;
+}
+
+static _INLINE_ void do_cache_destroy(kmem_cache_t *cache)
+{
+ free(cache);
+}
+
+/*
+ * Now pull in the real linux/jfs.h definitions.
+ */
+#include "ext2fs/kernel-jbd.h"
+
+/*
+ * Kernel compatibility functions are defined in journal.c
+ */
+static int journal_bmap(journal_t *journal, blk_t block, unsigned long *phys);
+static struct buffer_head *getblk(kdev_t ctx, blk_t blocknr, int blocksize);
+static void sync_blockdev(kdev_t kdev);
+static void ll_rw_block(int rw, int dummy, struct buffer_head *bh[]);
+static void mark_buffer_dirty(struct buffer_head *bh);
+static void mark_buffer_uptodate(struct buffer_head *bh, int val);
+static void brelse(struct buffer_head *bh);
+static int buffer_uptodate(struct buffer_head *bh);
+static void wait_on_buffer(struct buffer_head *bh);
+
+/*
+ * Define newer 2.5 interfaces
+ */
+#define __getblk(dev, blocknr, blocksize) getblk(dev, blocknr, blocksize)
+#define set_buffer_uptodate(bh) mark_buffer_uptodate(bh, 1)
+
+/*
+ * badblocks.c --- replace/append bad blocks to the bad block inode
+ *
+ * Copyright (C) 1993, 1994 Theodore Ts'o. This file may be
+ * redistributed under the terms of the GNU Public License.
+ */
+
+static int check_bb_inode_blocks(ext2_filsys fs, blk_t *block_nr, int blockcnt,
+ void *priv_data);
+
+
+static void invalid_block(ext2_filsys fs EXT2FS_ATTR((unused)), blk_t blk)
+{
+ printf(_("Bad block %u out of range; ignored.\n"), blk);
+ return;
+}
+
+void read_bad_blocks_file(e2fsck_t ctx, const char *bad_blocks_file,
+ int replace_bad_blocks)
+{
+ ext2_filsys fs = ctx->fs;
+ errcode_t retval;
+ badblocks_list bb_list = 0;
+ FILE *f;
+ char buf[1024];
+
+ e2fsck_read_bitmaps(ctx);
+
+ /*
+ * Make sure the bad block inode is sane. If there are any
+ * illegal blocks, clear them.
+ */
+ retval = ext2fs_block_iterate(fs, EXT2_BAD_INO, 0, 0,
+ check_bb_inode_blocks, 0);
+ if (retval) {
+ com_err("ext2fs_block_iterate", retval,
+ _("while sanity checking the bad blocks inode"));
+ goto fatal;
+ }
+
+ /*
+ * If we're appending to the bad blocks inode, read in the
+ * current bad blocks.
+ */
+ if (!replace_bad_blocks) {
+ retval = ext2fs_read_bb_inode(fs, &bb_list);
+ if (retval) {
+ com_err("ext2fs_read_bb_inode", retval,
+ _("while reading the bad blocks inode"));
+ goto fatal;
+ }
+ }
+
+ /*
+ * Now read in the bad blocks from the file; if
+ * bad_blocks_file is null, then try to run the badblocks
+ * command.
+ */
+ if (bad_blocks_file) {
+ f = fopen(bad_blocks_file, "r");
+ if (!f) {
+ com_err("read_bad_blocks_file", errno,
+ _("while trying to open %s"), bad_blocks_file);
+ goto fatal;
+ }
+ } else {
+ sprintf(buf, "badblocks -b %d %s%s%s %d", fs->blocksize,
+ (ctx->options & E2F_OPT_PREEN) ? "" : "-s ",
+ (ctx->options & E2F_OPT_WRITECHECK) ? "-n " : "",
+ fs->device_name, fs->super->s_blocks_count);
+ f = popen(buf, "r");
+ if (!f) {
+ com_err("read_bad_blocks_file", errno,
+ _("while trying popen '%s'"), buf);
+ goto fatal;
+ }
+ }
+ retval = ext2fs_read_bb_FILE(fs, f, &bb_list, invalid_block);
+ if (bad_blocks_file)
+ fclose(f);
+ else
+ pclose(f);
+ if (retval) {
+ com_err("ext2fs_read_bb_FILE", retval,
+ _("while reading in list of bad blocks from file"));
+ goto fatal;
+ }
+
+ /*
+ * Finally, update the bad blocks from the bad_block_map
+ */
+ retval = ext2fs_update_bb_inode(fs, bb_list);
+ if (retval) {
+ com_err("ext2fs_update_bb_inode", retval,
+ _("while updating bad block inode"));
+ goto fatal;
+ }
+
+ ext2fs_badblocks_list_free(bb_list);
+ return;
+
+fatal:
+ ctx->flags |= E2F_FLAG_ABORT;
+ return;
+
+}
+
+static int check_bb_inode_blocks(ext2_filsys fs,
+ blk_t *block_nr,
+ int blockcnt EXT2FS_ATTR((unused)),
+ void *priv_data EXT2FS_ATTR((unused)))
+{
+ if (!*block_nr)
+ return 0;
+
+ /*
+ * If the block number is outrageous, clear it and ignore it.
+ */
+ if (*block_nr >= fs->super->s_blocks_count ||
+ *block_nr < fs->super->s_first_data_block) {
+ printf(_("Warning illegal block %u found in bad block inode. Cleared.\n"), *block_nr);
+ *block_nr = 0;
+ return BLOCK_CHANGED;
+ }
+
+ return 0;
+}
+
+/*
+ * Dictionary Abstract Data Type
+ * Copyright (C) 1997 Kaz Kylheku <kaz@ashi.footprints.net>
+ *
+ * Free Software License:
+ *
+ * All rights are reserved by the author, with the following exceptions:
+ * Permission is granted to freely reproduce and distribute this software,
+ * possibly in exchange for a fee, provided that this copyright notice appears
+ * intact. Permission is also granted to adapt this software to produce
+ * derivative works, as long as the modified versions carry this copyright
+ * notice and additional notices stating that the work has been modified.
+ * This source code may be translated into executable form and incorporated
+ * into proprietary software; there is no requirement for such software to
+ * contain a copyright notice related to this source.
+ *
+ * $Id: dict.c,v 1.40.2.7 2000/11/13 01:36:44 kaz Exp $
+ * $Name: kazlib_1_20 $
+ */
+
+
+/*
+ * These macros provide short convenient names for structure members,
+ * which are embellished with dict_ prefixes so that they are
+ * properly confined to the documented namespace. It's legal for a
+ * program which uses dict to define, for instance, a macro called ``parent''.
+ * Such a macro would interfere with the dnode_t struct definition.
+ * In general, highly portable and reusable C modules which expose their
+ * structures need to confine structure member names to well-defined spaces.
+ * The resulting identifiers aren't necessarily convenient to use, nor
+ * readable, in the implementation, however!
+ */
+
+#define left dict_left
+#define right dict_right
+#define parent dict_parent
+#define color dict_color
+#define key dict_key
+#define data dict_data
+
+#define nilnode dict_nilnode
+#define nodecount dict_nodecount
+#define maxcount dict_maxcount
+#define compare dict_compare
+#define allocnode dict_allocnode
+#define freenode dict_freenode
+#define context dict_context
+#define dupes dict_dupes
+
+#define dictptr dict_dictptr
+
+#define dict_root(D) ((D)->nilnode.left)
+#define dict_nil(D) (&(D)->nilnode)
+#define DICT_DEPTH_MAX 64
+
+static dnode_t *dnode_alloc(void *context);
+static void dnode_free(dnode_t *node, void *context);
+
+/*
+ * Perform a ``left rotation'' adjustment on the tree. The given node P and
+ * its right child C are rearranged so that the P instead becomes the left
+ * child of C. The left subtree of C is inherited as the new right subtree
+ * for P. The ordering of the keys within the tree is thus preserved.
+ */
+
+static void rotate_left(dnode_t *upper)
+{
+ dnode_t *lower, *lowleft, *upparent;
+
+ lower = upper->right;
+ upper->right = lowleft = lower->left;
+ lowleft->parent = upper;
+
+ lower->parent = upparent = upper->parent;
+
+ /* don't need to check for root node here because root->parent is
+ the sentinel nil node, and root->parent->left points back to root */
+
+ if (upper == upparent->left) {
+ upparent->left = lower;
+ } else {
+ assert (upper == upparent->right);
+ upparent->right = lower;
+ }
+
+ lower->left = upper;
+ upper->parent = lower;
+}
+
+/*
+ * This operation is the ``mirror'' image of rotate_left. It is
+ * the same procedure, but with left and right interchanged.
+ */
+
+static void rotate_right(dnode_t *upper)
+{
+ dnode_t *lower, *lowright, *upparent;
+
+ lower = upper->left;
+ upper->left = lowright = lower->right;
+ lowright->parent = upper;
+
+ lower->parent = upparent = upper->parent;
+
+ if (upper == upparent->right) {
+ upparent->right = lower;
+ } else {
+ assert (upper == upparent->left);
+ upparent->left = lower;
+ }
+
+ lower->right = upper;
+ upper->parent = lower;
+}
+
+/*
+ * Do a postorder traversal of the tree rooted at the specified
+ * node and free everything under it. Used by dict_free().
+ */
+
+static void free_nodes(dict_t *dict, dnode_t *node, dnode_t *nil)
+{
+ if (node == nil)
+ return;
+ free_nodes(dict, node->left, nil);
+ free_nodes(dict, node->right, nil);
+ dict->freenode(node, dict->context);
+}
+
+/*
+ * Verify that the tree contains the given node. This is done by
+ * traversing all of the nodes and comparing their pointers to the
+ * given pointer. Returns 1 if the node is found, otherwise
+ * returns zero. It is intended for debugging purposes.
+ */
+
+static int verify_dict_has_node(dnode_t *nil, dnode_t *root, dnode_t *node)
+{
+ if (root != nil) {
+ return root == node
+ || verify_dict_has_node(nil, root->left, node)
+ || verify_dict_has_node(nil, root->right, node);
+ }
+ return 0;
+}
+
+
+/*
+ * Select a different set of node allocator routines.
+ */
+
+void dict_set_allocator(dict_t *dict, dnode_alloc_t al,
+ dnode_free_t fr, void *context)
+{
+ assert (dict_count(dict) == 0);
+ assert ((al == NULL && fr == NULL) || (al != NULL && fr != NULL));
+
+ dict->allocnode = al ? al : dnode_alloc;
+ dict->freenode = fr ? fr : dnode_free;
+ dict->context = context;
+}
+
+/*
+ * Free all the nodes in the dictionary by using the dictionary's
+ * installed free routine. The dictionary is emptied.
+ */
+
+void dict_free_nodes(dict_t *dict)
+{
+ dnode_t *nil = dict_nil(dict), *root = dict_root(dict);
+ free_nodes(dict, root, nil);
+ dict->nodecount = 0;
+ dict->nilnode.left = &dict->nilnode;
+ dict->nilnode.right = &dict->nilnode;
+}
+
+/*
+ * Initialize a user-supplied dictionary object.
+ */
+
+dict_t *dict_init(dict_t *dict, dictcount_t maxcount, dict_comp_t comp)
+{
+ dict->compare = comp;
+ dict->allocnode = dnode_alloc;
+ dict->freenode = dnode_free;
+ dict->context = NULL;
+ dict->nodecount = 0;
+ dict->maxcount = maxcount;
+ dict->nilnode.left = &dict->nilnode;
+ dict->nilnode.right = &dict->nilnode;
+ dict->nilnode.parent = &dict->nilnode;
+ dict->nilnode.color = dnode_black;
+ dict->dupes = 0;
+ return dict;
+}
+
+/*
+ * Locate a node in the dictionary having the given key.
+ * If the node is not found, a null a pointer is returned (rather than
+ * a pointer that dictionary's nil sentinel node), otherwise a pointer to the
+ * located node is returned.
+ */
+
+dnode_t *dict_lookup(dict_t *dict, const void *key)
+{
+ dnode_t *root = dict_root(dict);
+ dnode_t *nil = dict_nil(dict);
+ dnode_t *saved;
+ int result;
+
+ /* simple binary search adapted for trees that contain duplicate keys */
+
+ while (root != nil) {
+ result = dict->compare(key, root->key);
+ if (result < 0)
+ root = root->left;
+ else if (result > 0)
+ root = root->right;
+ else {
+ if (!dict->dupes) { /* no duplicates, return match */
+ return root;
+ } else { /* could be dupes, find leftmost one */
+ do {
+ saved = root;
+ root = root->left;
+ while (root != nil && dict->compare(key, root->key))
+ root = root->right;
+ } while (root != nil);
+ return saved;
+ }
+ }
+ }
+
+ return NULL;
+}
+
+/*
+ * Insert a node into the dictionary. The node should have been
+ * initialized with a data field. All other fields are ignored.
+ * The behavior is undefined if the user attempts to insert into
+ * a dictionary that is already full (for which the dict_isfull()
+ * function returns true).
+ */
+
+void dict_insert(dict_t *dict, dnode_t *node, const void *key)
+{
+ dnode_t *where = dict_root(dict), *nil = dict_nil(dict);
+ dnode_t *parent = nil, *uncle, *grandpa;
+ int result = -1;
+
+ node->key = key;
+
+ /* basic binary tree insert */
+
+ while (where != nil) {
+ parent = where;
+ result = dict->compare(key, where->key);
+ /* trap attempts at duplicate key insertion unless it's explicitly allowed */
+ assert (dict->dupes || result != 0);
+ if (result < 0)
+ where = where->left;
+ else
+ where = where->right;
+ }
+
+ assert (where == nil);
+
+ if (result < 0)
+ parent->left = node;
+ else
+ parent->right = node;
+
+ node->parent = parent;
+ node->left = nil;
+ node->right = nil;
+
+ dict->nodecount++;
+
+ /* red black adjustments */
+
+ node->color = dnode_red;
+
+ while (parent->color == dnode_red) {
+ grandpa = parent->parent;
+ if (parent == grandpa->left) {
+ uncle = grandpa->right;
+ if (uncle->color == dnode_red) { /* red parent, red uncle */
+ parent->color = dnode_black;
+ uncle->color = dnode_black;
+ grandpa->color = dnode_red;
+ node = grandpa;
+ parent = grandpa->parent;
+ } else { /* red parent, black uncle */
+ if (node == parent->right) {
+ rotate_left(parent);
+ parent = node;
+ assert (grandpa == parent->parent);
+ /* rotation between parent and child preserves grandpa */
+ }
+ parent->color = dnode_black;
+ grandpa->color = dnode_red;
+ rotate_right(grandpa);
+ break;
+ }
+ } else { /* symmetric cases: parent == parent->parent->right */
+ uncle = grandpa->left;
+ if (uncle->color == dnode_red) {
+ parent->color = dnode_black;
+ uncle->color = dnode_black;
+ grandpa->color = dnode_red;
+ node = grandpa;
+ parent = grandpa->parent;
+ } else {
+ if (node == parent->left) {
+ rotate_right(parent);
+ parent = node;
+ assert (grandpa == parent->parent);
+ }
+ parent->color = dnode_black;
+ grandpa->color = dnode_red;
+ rotate_left(grandpa);
+ break;
+ }
+ }
+ }
+
+ dict_root(dict)->color = dnode_black;
+
+}
+
+/*
+ * Allocate a node using the dictionary's allocator routine, give it
+ * the data item.
+ */
+
+int dict_alloc_insert(dict_t *dict, const void *key, void *data)
+{
+ dnode_t *node = dict->allocnode(dict->context);
+
+ if (node) {
+ dnode_init(node, data);
+ dict_insert(dict, node, key);
+ return 1;
+ }
+ return 0;
+}
+
+/*
+ * Return the node with the lowest (leftmost) key. If the dictionary is empty
+ * (that is, dict_isempty(dict) returns 1) a null pointer is returned.
+ */
+
+dnode_t *dict_first(dict_t *dict)
+{
+ dnode_t *nil = dict_nil(dict), *root = dict_root(dict), *left;
+
+ if (root != nil)
+ while ((left = root->left) != nil)
+ root = left;
+
+ return (root == nil) ? NULL : root;
+}
+
+/*
+ * Return the given node's successor node---the node which has the
+ * next key in the the left to right ordering. If the node has
+ * no successor, a null pointer is returned rather than a pointer to
+ * the nil node.
+ */
+
+dnode_t *dict_next(dict_t *dict, dnode_t *curr)
+{
+ dnode_t *nil = dict_nil(dict), *parent, *left;
+
+ if (curr->right != nil) {
+ curr = curr->right;
+ while ((left = curr->left) != nil)
+ curr = left;
+ return curr;
+ }
+
+ parent = curr->parent;
+
+ while (parent != nil && curr == parent->right) {
+ curr = parent;
+ parent = curr->parent;
+ }
+
+ return (parent == nil) ? NULL : parent;
+}
+
+#undef dict_count
+#undef dnode_get
+#undef dnode_getkey
+
+dictcount_t dict_count(dict_t *dict)
+{
+ return dict->nodecount;
+}
+
+static dnode_t *dnode_alloc(void *context EXT2FS_ATTR((unused)))
+{
+ return malloc(sizeof *dnode_alloc(NULL));
+}
+
+static void dnode_free(dnode_t *node, void *context EXT2FS_ATTR((unused)))
+{
+ free(node);
+}
+
+dnode_t *dnode_init(dnode_t *dnode, void *data)
+{
+ dnode->data = data;
+ dnode->parent = NULL;
+ dnode->left = NULL;
+ dnode->right = NULL;
+ return dnode;
+}
+
+void *dnode_get(dnode_t *dnode)
+{
+ return dnode->data;
+}
+
+const void *dnode_getkey(dnode_t *dnode)
+{
+ return dnode->key;
+}
+
+#undef left
+#undef right
+#undef parent
+#undef color
+#undef key
+#undef data
+
+#undef nilnode
+#undef nodecount
+#undef maxcount
+#undef compare
+#undef allocnode
+#undef freenode
+#undef context
+#undef dupes
+
+#undef dictptr
+
+
+/*
+ * dirinfo.c --- maintains the directory information table for e2fsck.
+ *
+ * Copyright (C) 1993 Theodore Ts'o. This file may be redistributed
+ * under the terms of the GNU Public License.
+ */
+
+/*
+ * This subroutine is called during pass1 to create a directory info
+ * entry. During pass1, the passed-in parent is 0; it will get filled
+ * in during pass2.
+ */
+void e2fsck_add_dir_info(e2fsck_t ctx, ext2_ino_t ino, ext2_ino_t parent)
+{
+ struct dir_info *dir;
+ int i, j;
+ ext2_ino_t num_dirs;
+ errcode_t retval;
+ unsigned long old_size;
+
+#if 0
+ printf("add_dir_info for inode %lu...\n", ino);
+#endif
+ if (!ctx->dir_info) {
+ ctx->dir_info_count = 0;
+ retval = ext2fs_get_num_dirs(ctx->fs, &num_dirs);
+ if (retval)
+ num_dirs = 1024; /* Guess */
+ ctx->dir_info_size = num_dirs + 10;
+ ctx->dir_info = (struct dir_info *)
+ e2fsck_allocate_memory(ctx, ctx->dir_info_size
+ * sizeof (struct dir_info),
+ "directory map");
+ }
+
+ if (ctx->dir_info_count >= ctx->dir_info_size) {
+ old_size = ctx->dir_info_size * sizeof(struct dir_info);
+ ctx->dir_info_size += 10;
+ retval = ext2fs_resize_mem(old_size, ctx->dir_info_size *
+ sizeof(struct dir_info),
+ &ctx->dir_info);
+ if (retval) {
+ ctx->dir_info_size -= 10;
+ return;
+ }
+ }
+
+ /*
+ * Normally, add_dir_info is called with each inode in
+ * sequential order; but once in a while (like when pass 3
+ * needs to recreate the root directory or lost+found
+ * directory) it is called out of order. In those cases, we
+ * need to move the dir_info entries down to make room, since
+ * the dir_info array needs to be sorted by inode number for
+ * get_dir_info()'s sake.
+ */
+ if (ctx->dir_info_count &&
+ ctx->dir_info[ctx->dir_info_count-1].ino >= ino) {
+ for (i = ctx->dir_info_count-1; i > 0; i--)
+ if (ctx->dir_info[i-1].ino < ino)
+ break;
+ dir = &ctx->dir_info[i];
+ if (dir->ino != ino)
+ for (j = ctx->dir_info_count++; j > i; j--)
+ ctx->dir_info[j] = ctx->dir_info[j-1];
+ } else
+ dir = &ctx->dir_info[ctx->dir_info_count++];
+
+ dir->ino = ino;
+ dir->dotdot = parent;
+ dir->parent = parent;
+}
+
+/*
+ * get_dir_info() --- given an inode number, try to find the directory
+ * information entry for it.
+ */
+struct dir_info *e2fsck_get_dir_info(e2fsck_t ctx, ext2_ino_t ino)
+{
+ int low, high, mid;
+
+ low = 0;
+ high = ctx->dir_info_count-1;
+ if (!ctx->dir_info)
+ return 0;
+ if (ino == ctx->dir_info[low].ino)
+ return &ctx->dir_info[low];
+ if (ino == ctx->dir_info[high].ino)
+ return &ctx->dir_info[high];
+
+ while (low < high) {
+ mid = (low+high)/2;
+ if (mid == low || mid == high)
+ break;
+ if (ino == ctx->dir_info[mid].ino)
+ return &ctx->dir_info[mid];
+ if (ino < ctx->dir_info[mid].ino)
+ high = mid;
+ else
+ low = mid;
+ }
+ return 0;
+}
+
+/*
+ * Free the dir_info structure when it isn't needed any more.
+ */
+void e2fsck_free_dir_info(e2fsck_t ctx)
+{
+ if (ctx->dir_info) {
+ ext2fs_free_mem(&ctx->dir_info);
+ ctx->dir_info = 0;
+ }
+ ctx->dir_info_size = 0;
+ ctx->dir_info_count = 0;
+}
+
+/*
+ * Return the count of number of directories in the dir_info structure
+ */
+int e2fsck_get_num_dirinfo(e2fsck_t ctx)
+{
+ return ctx->dir_info_count;
+}
+
+/*
+ * A simple interator function
+ */
+struct dir_info *e2fsck_dir_info_iter(e2fsck_t ctx, int *control)
+{
+ if (*control >= ctx->dir_info_count)
+ return 0;
+
+ return(ctx->dir_info + (*control)++);
+}
+/*
+ * dirinfo.c --- maintains the directory information table for e2fsck.
+ *
+ * Copyright (C) 1993 Theodore Ts'o. This file may be redistributed
+ * under the terms of the GNU Public License.
+ */
+
+#ifdef ENABLE_HTREE
+
+/*
+ * This subroutine is called during pass1 to create a directory info
+ * entry. During pass1, the passed-in parent is 0; it will get filled
+ * in during pass2.
+ */
+void e2fsck_add_dx_dir(e2fsck_t ctx, ext2_ino_t ino, int num_blocks)
+{
+ struct dx_dir_info *dir;
+ int i, j;
+ errcode_t retval;
+ unsigned long old_size;
+
+#if 0
+ printf("add_dx_dir_info for inode %lu...\n", ino);
+#endif
+ if (!ctx->dx_dir_info) {
+ ctx->dx_dir_info_count = 0;
+ ctx->dx_dir_info_size = 100; /* Guess */
+ ctx->dx_dir_info = (struct dx_dir_info *)
+ e2fsck_allocate_memory(ctx, ctx->dx_dir_info_size
+ * sizeof (struct dx_dir_info),
+ "directory map");
+ }
+
+ if (ctx->dx_dir_info_count >= ctx->dx_dir_info_size) {
+ old_size = ctx->dx_dir_info_size * sizeof(struct dx_dir_info);
+ ctx->dx_dir_info_size += 10;
+ retval = ext2fs_resize_mem(old_size, ctx->dx_dir_info_size *
+ sizeof(struct dx_dir_info),
+ &ctx->dx_dir_info);
+ if (retval) {
+ ctx->dx_dir_info_size -= 10;
+ return;
+ }
+ }
+
+ /*
+ * Normally, add_dx_dir_info is called with each inode in
+ * sequential order; but once in a while (like when pass 3
+ * needs to recreate the root directory or lost+found
+ * directory) it is called out of order. In those cases, we
+ * need to move the dx_dir_info entries down to make room, since
+ * the dx_dir_info array needs to be sorted by inode number for
+ * get_dx_dir_info()'s sake.
+ */
+ if (ctx->dx_dir_info_count &&
+ ctx->dx_dir_info[ctx->dx_dir_info_count-1].ino >= ino) {
+ for (i = ctx->dx_dir_info_count-1; i > 0; i--)
+ if (ctx->dx_dir_info[i-1].ino < ino)
+ break;
+ dir = &ctx->dx_dir_info[i];
+ if (dir->ino != ino)
+ for (j = ctx->dx_dir_info_count++; j > i; j--)
+ ctx->dx_dir_info[j] = ctx->dx_dir_info[j-1];
+ } else
+ dir = &ctx->dx_dir_info[ctx->dx_dir_info_count++];
+
+ dir->ino = ino;
+ dir->numblocks = num_blocks;
+ dir->hashversion = 0;
+ dir->dx_block = e2fsck_allocate_memory(ctx, num_blocks
+ * sizeof (struct dx_dirblock_info),
+ "dx_block info array");
+
+}
+
+/*
+ * get_dx_dir_info() --- given an inode number, try to find the directory
+ * information entry for it.
+ */
+struct dx_dir_info *e2fsck_get_dx_dir_info(e2fsck_t ctx, ext2_ino_t ino)
+{
+ int low, high, mid;
+
+ low = 0;
+ high = ctx->dx_dir_info_count-1;
+ if (!ctx->dx_dir_info)
+ return 0;
+ if (ino == ctx->dx_dir_info[low].ino)
+ return &ctx->dx_dir_info[low];
+ if (ino == ctx->dx_dir_info[high].ino)
+ return &ctx->dx_dir_info[high];
+
+ while (low < high) {
+ mid = (low+high)/2;
+ if (mid == low || mid == high)
+ break;
+ if (ino == ctx->dx_dir_info[mid].ino)
+ return &ctx->dx_dir_info[mid];
+ if (ino < ctx->dx_dir_info[mid].ino)
+ high = mid;
+ else
+ low = mid;
+ }
+ return 0;
+}
+
+/*
+ * Free the dx_dir_info structure when it isn't needed any more.
+ */
+void e2fsck_free_dx_dir_info(e2fsck_t ctx)
+{
+ int i;
+ struct dx_dir_info *dir;
+
+ if (ctx->dx_dir_info) {
+ dir = ctx->dx_dir_info;
+ for (i=0; i < ctx->dx_dir_info_count; i++) {
+ if (dir->dx_block) {
+ ext2fs_free_mem(&dir->dx_block);
+ dir->dx_block = 0;
+ }
+ }
+ ext2fs_free_mem(&ctx->dx_dir_info);
+ ctx->dx_dir_info = 0;
+ }
+ ctx->dx_dir_info_size = 0;
+ ctx->dx_dir_info_count = 0;
+}
+
+/*
+ * A simple interator function
+ */
+struct dx_dir_info *e2fsck_dx_dir_info_iter(e2fsck_t ctx, int *control)
+{
+ if (*control >= ctx->dx_dir_info_count)
+ return 0;
+
+ return(ctx->dx_dir_info + (*control)++);
+}
+
+#endif /* ENABLE_HTREE */
+/*
+ * e2fsck.c - a consistency checker for the new extended file system.
+ *
+ * Copyright (C) 1993, 1994, 1995, 1996, 1997 Theodore Ts'o.
+ *
+ * %Begin-Header%
+ * This file may be redistributed under the terms of the GNU Public
+ * License.
+ * %End-Header%
+ */
+
+/*
+ * This function allocates an e2fsck context
+ */
+errcode_t e2fsck_allocate_context(e2fsck_t *ret)
+{
+ e2fsck_t context;
+ errcode_t retval;
+
+ retval = ext2fs_get_mem(sizeof(struct e2fsck_struct), &context);
+ if (retval)
+ return retval;
+
+ memset(context, 0, sizeof(struct e2fsck_struct));
+
+ context->process_inode_size = 256;
+ context->ext_attr_ver = 2;
+
+ *ret = context;
+ return 0;
+}
+
+/*
+ * This function resets an e2fsck context; it is called when e2fsck
+ * needs to be restarted.
+ */
+errcode_t e2fsck_reset_context(e2fsck_t ctx)
+{
+ ctx->flags = 0;
+ ctx->lost_and_found = 0;
+ ctx->bad_lost_and_found = 0;
+ if (ctx->inode_used_map) {
+ ext2fs_free_inode_bitmap(ctx->inode_used_map);
+ ctx->inode_used_map = 0;
+ }
+ if (ctx->inode_dir_map) {
+ ext2fs_free_inode_bitmap(ctx->inode_dir_map);
+ ctx->inode_dir_map = 0;
+ }
+ if (ctx->inode_reg_map) {
+ ext2fs_free_inode_bitmap(ctx->inode_reg_map);
+ ctx->inode_reg_map = 0;
+ }
+ if (ctx->block_found_map) {
+ ext2fs_free_block_bitmap(ctx->block_found_map);
+ ctx->block_found_map = 0;
+ }
+ if (ctx->inode_link_info) {
+ ext2fs_free_icount(ctx->inode_link_info);
+ ctx->inode_link_info = 0;
+ }
+ if (ctx->journal_io) {
+ if (ctx->fs && ctx->fs->io != ctx->journal_io)
+ io_channel_close(ctx->journal_io);
+ ctx->journal_io = 0;
+ }
+ if (ctx->fs && ctx->fs->dblist) {
+ ext2fs_free_dblist(ctx->fs->dblist);
+ ctx->fs->dblist = 0;
+ }
+ e2fsck_free_dir_info(ctx);
+#ifdef ENABLE_HTREE
+ e2fsck_free_dx_dir_info(ctx);
+#endif
+ if (ctx->refcount) {
+ ea_refcount_free(ctx->refcount);
+ ctx->refcount = 0;
+ }
+ if (ctx->refcount_extra) {
+ ea_refcount_free(ctx->refcount_extra);
+ ctx->refcount_extra = 0;
+ }
+ if (ctx->block_dup_map) {
+ ext2fs_free_block_bitmap(ctx->block_dup_map);
+ ctx->block_dup_map = 0;
+ }
+ if (ctx->block_ea_map) {
+ ext2fs_free_block_bitmap(ctx->block_ea_map);
+ ctx->block_ea_map = 0;
+ }
+ if (ctx->inode_bb_map) {
+ ext2fs_free_inode_bitmap(ctx->inode_bb_map);
+ ctx->inode_bb_map = 0;
+ }
+ if (ctx->inode_bad_map) {
+ ext2fs_free_inode_bitmap(ctx->inode_bad_map);
+ ctx->inode_bad_map = 0;
+ }
+ if (ctx->inode_imagic_map) {
+ ext2fs_free_inode_bitmap(ctx->inode_imagic_map);
+ ctx->inode_imagic_map = 0;
+ }
+ if (ctx->dirs_to_hash) {
+ ext2fs_u32_list_free(ctx->dirs_to_hash);
+ ctx->dirs_to_hash = 0;
+ }
+
+ /*
+ * Clear the array of invalid meta-data flags
+ */
+ if (ctx->invalid_inode_bitmap_flag) {
+ ext2fs_free_mem(&ctx->invalid_inode_bitmap_flag);
+ ctx->invalid_inode_bitmap_flag = 0;
+ }
+ if (ctx->invalid_block_bitmap_flag) {
+ ext2fs_free_mem(&ctx->invalid_block_bitmap_flag);
+ ctx->invalid_block_bitmap_flag = 0;
+ }
+ if (ctx->invalid_inode_table_flag) {
+ ext2fs_free_mem(&ctx->invalid_inode_table_flag);
+ ctx->invalid_inode_table_flag = 0;
+ }
+
+ /* Clear statistic counters */
+ ctx->fs_directory_count = 0;
+ ctx->fs_regular_count = 0;
+ ctx->fs_blockdev_count = 0;
+ ctx->fs_chardev_count = 0;
+ ctx->fs_links_count = 0;
+ ctx->fs_symlinks_count = 0;
+ ctx->fs_fast_symlinks_count = 0;
+ ctx->fs_fifo_count = 0;
+ ctx->fs_total_count = 0;
+ ctx->fs_badblocks_count = 0;
+ ctx->fs_sockets_count = 0;
+ ctx->fs_ind_count = 0;
+ ctx->fs_dind_count = 0;
+ ctx->fs_tind_count = 0;
+ ctx->fs_fragmented = 0;
+ ctx->large_files = 0;
+
+ /* Reset the superblock to the user's requested value */
+ ctx->superblock = ctx->use_superblock;
+
+ return 0;
+}
+
+void e2fsck_free_context(e2fsck_t ctx)
+{
+ if (!ctx)
+ return;
+
+ e2fsck_reset_context(ctx);
+ if (ctx->blkid)
+ blkid_put_cache(ctx->blkid);
+
+ ext2fs_free_mem(&ctx);
+}
+
+/*
+ * This function runs through the e2fsck passes and calls them all,
+ * returning restart, abort, or cancel as necessary...
+ */
+typedef void (*pass_t)(e2fsck_t ctx);
+
+static pass_t e2fsck_passes[] = {
+ e2fsck_pass1, e2fsck_pass2, e2fsck_pass3, e2fsck_pass4,
+ e2fsck_pass5, 0 };
+
+#define E2F_FLAG_RUN_RETURN (E2F_FLAG_SIGNAL_MASK|E2F_FLAG_RESTART)
+
+int e2fsck_run(e2fsck_t ctx)
+{
+ int i;
+ pass_t e2fsck_pass;
+
+ if (setjmp(ctx->abort_loc)) {
+ ctx->flags &= ~E2F_FLAG_SETJMP_OK;
+ return (ctx->flags & E2F_FLAG_RUN_RETURN);
+ }
+ ctx->flags |= E2F_FLAG_SETJMP_OK;
+
+ for (i=0; (e2fsck_pass = e2fsck_passes[i]); i++) {
+ if (ctx->flags & E2F_FLAG_RUN_RETURN)
+ break;
+ e2fsck_pass(ctx);
+ if (ctx->progress)
+ (void) (ctx->progress)(ctx, 0, 0, 0);
+ }
+ ctx->flags &= ~E2F_FLAG_SETJMP_OK;
+
+ if (ctx->flags & E2F_FLAG_RUN_RETURN)
+ return (ctx->flags & E2F_FLAG_RUN_RETURN);
+ return 0;
+}
+/*
+ * ea_refcount.c
+ *
+ * Copyright (C) 2001 Theodore Ts'o. This file may be
+ * redistributed under the terms of the GNU Public License.
+ */
+
+/*
+ * The strategy we use for keeping track of EA refcounts is as
+ * follows. We keep a sorted array of first EA blocks and its
+ * reference counts. Once the refcount has dropped to zero, it is
+ * removed from the array to save memory space. Once the EA block is
+ * checked, its bit is set in the block_ea_map bitmap.
+ */
+struct ea_refcount_el {
+ blk_t ea_blk;
+ int ea_count;
+};
+
+struct ea_refcount {
+ blk_t count;
+ blk_t size;
+ blk_t cursor;
+ struct ea_refcount_el *list;
+};
+
+void ea_refcount_free(ext2_refcount_t refcount)
+{
+ if (!refcount)
+ return;
+
+ if (refcount->list)
+ ext2fs_free_mem(&refcount->list);
+ ext2fs_free_mem(&refcount);
+}
+
+errcode_t ea_refcount_create(int size, ext2_refcount_t *ret)
+{
+ ext2_refcount_t refcount;
+ errcode_t retval;
+ size_t bytes;
+
+ retval = ext2fs_get_mem(sizeof(struct ea_refcount), &refcount);
+ if (retval)
+ return retval;
+ memset(refcount, 0, sizeof(struct ea_refcount));
+
+ if (!size)
+ size = 500;
+ refcount->size = size;
+ bytes = (size_t) (size * sizeof(struct ea_refcount_el));
+#ifdef DEBUG
+ printf("Refcount allocated %d entries, %d bytes.\n",
+ refcount->size, bytes);
+#endif
+ retval = ext2fs_get_mem(bytes, &refcount->list);
+ if (retval)
+ goto errout;
+ memset(refcount->list, 0, bytes);
+
+ refcount->count = 0;
+ refcount->cursor = 0;
+
+ *ret = refcount;
+ return 0;
+
+errout:
+ ea_refcount_free(refcount);
+ return(retval);
+}
+
+/*
+ * collapse_refcount() --- go through the refcount array, and get rid
+ * of any count == zero entries
+ */
+static void refcount_collapse(ext2_refcount_t refcount)
+{
+ unsigned int i, j;
+ struct ea_refcount_el *list;
+
+ list = refcount->list;
+ for (i = 0, j = 0; i < refcount->count; i++) {
+ if (list[i].ea_count) {
+ if (i != j)
+ list[j] = list[i];
+ j++;
+ }
+ }
+#if defined(DEBUG) || defined(TEST_PROGRAM)
+ printf("Refcount_collapse: size was %d, now %d\n",
+ refcount->count, j);
+#endif
+ refcount->count = j;
+}
+
+
+/*
+ * insert_refcount_el() --- Insert a new entry into the sorted list at a
+ * specified position.
+ */
+static struct ea_refcount_el *insert_refcount_el(ext2_refcount_t refcount,
+ blk_t blk, int pos)
+{
+ struct ea_refcount_el *el;
+ errcode_t retval;
+ blk_t new_size = 0;
+ int num;
+
+ if (refcount->count >= refcount->size) {
+ new_size = refcount->size + 100;
+#ifdef DEBUG
+ printf("Reallocating refcount %d entries...\n", new_size);
+#endif
+ retval = ext2fs_resize_mem((size_t) refcount->size *
+ sizeof(struct ea_refcount_el),
+ (size_t) new_size *
+ sizeof(struct ea_refcount_el),
+ &refcount->list);
+ if (retval)
+ return 0;
+ refcount->size = new_size;
+ }
+ num = (int) refcount->count - pos;
+ if (num < 0)
+ return 0; /* should never happen */
+ if (num) {
+ memmove(&refcount->list[pos+1], &refcount->list[pos],
+ sizeof(struct ea_refcount_el) * num);
+ }
+ refcount->count++;
+ el = &refcount->list[pos];
+ el->ea_count = 0;
+ el->ea_blk = blk;
+ return el;
+}
+
+
+/*
+ * get_refcount_el() --- given an block number, try to find refcount
+ * information in the sorted list. If the create flag is set,
+ * and we can't find an entry, create one in the sorted list.
+ */
+static struct ea_refcount_el *get_refcount_el(ext2_refcount_t refcount,
+ blk_t blk, int create)
+{
+ float range;
+ int low, high, mid;
+ blk_t lowval, highval;
+
+ if (!refcount || !refcount->list)
+ return 0;
+retry:
+ low = 0;
+ high = (int) refcount->count-1;
+ if (create && ((refcount->count == 0) ||
+ (blk > refcount->list[high].ea_blk))) {
+ if (refcount->count >= refcount->size)
+ refcount_collapse(refcount);
+
+ return insert_refcount_el(refcount, blk,
+ (unsigned) refcount->count);
+ }
+ if (refcount->count == 0)
+ return 0;
+
+ if (refcount->cursor >= refcount->count)
+ refcount->cursor = 0;
+ if (blk == refcount->list[refcount->cursor].ea_blk)
+ return &refcount->list[refcount->cursor++];
+#ifdef DEBUG
+ printf("Non-cursor get_refcount_el: %u\n", blk);
+#endif
+ while (low <= high) {
+#if 0
+ mid = (low+high)/2;
+#else
+ if (low == high)
+ mid = low;
+ else {
+ /* Interpolate for efficiency */
+ lowval = refcount->list[low].ea_blk;
+ highval = refcount->list[high].ea_blk;
+
+ if (blk < lowval)
+ range = 0;
+ else if (blk > highval)
+ range = 1;
+ else
+ range = ((float) (blk - lowval)) /
+ (highval - lowval);
+ mid = low + ((int) (range * (high-low)));
+ }
+#endif
+ if (blk == refcount->list[mid].ea_blk) {
+ refcount->cursor = mid+1;
+ return &refcount->list[mid];
+ }
+ if (blk < refcount->list[mid].ea_blk)
+ high = mid-1;
+ else
+ low = mid+1;
+ }
+ /*
+ * If we need to create a new entry, it should be right at
+ * low (where high will be left at low-1).
+ */
+ if (create) {
+ if (refcount->count >= refcount->size) {
+ refcount_collapse(refcount);
+ if (refcount->count < refcount->size)
+ goto retry;
+ }
+ return insert_refcount_el(refcount, blk, low);
+ }
+ return 0;
+}
+
+errcode_t ea_refcount_increment(ext2_refcount_t refcount, blk_t blk, int *ret)
+{
+ struct ea_refcount_el *el;
+
+ el = get_refcount_el(refcount, blk, 1);
+ if (!el)
+ return EXT2_ET_NO_MEMORY;
+ el->ea_count++;
+
+ if (ret)
+ *ret = el->ea_count;
+ return 0;
+}
+
+errcode_t ea_refcount_decrement(ext2_refcount_t refcount, blk_t blk, int *ret)
+{
+ struct ea_refcount_el *el;
+
+ el = get_refcount_el(refcount, blk, 0);
+ if (!el || el->ea_count == 0)
+ return EXT2_ET_INVALID_ARGUMENT;
+
+ el->ea_count--;
+
+ if (ret)
+ *ret = el->ea_count;
+ return 0;
+}
+
+errcode_t ea_refcount_store(ext2_refcount_t refcount, blk_t blk, int count)
+{
+ struct ea_refcount_el *el;
+
+ /*
+ * Get the refcount element
+ */
+ el = get_refcount_el(refcount, blk, count ? 1 : 0);
+ if (!el)
+ return count ? EXT2_ET_NO_MEMORY : 0;
+ el->ea_count = count;
+ return 0;
+}
+
+void ea_refcount_intr_begin(ext2_refcount_t refcount)
+{
+ refcount->cursor = 0;
+}
+
+
+blk_t ea_refcount_intr_next(ext2_refcount_t refcount,
+ int *ret)
+{
+ struct ea_refcount_el *list;
+
+ while (1) {
+ if (refcount->cursor >= refcount->count)
+ return 0;
+ list = refcount->list;
+ if (list[refcount->cursor].ea_count) {
+ if (ret)
+ *ret = list[refcount->cursor].ea_count;
+ return list[refcount->cursor++].ea_blk;
+ }
+ refcount->cursor++;
+ }
+}
+
+
+/*
+ * ehandler.c --- handle bad block errors which come up during the
+ * course of an e2fsck session.
+ *
+ * Copyright (C) 1994 Theodore Ts'o. This file may be redistributed
+ * under the terms of the GNU Public License.
+ */
+
+
+static const char *operation;
+
+static errcode_t e2fsck_handle_read_error(io_channel channel,
+ unsigned long block,
+ int count,
+ void *data,
+ size_t size EXT2FS_ATTR((unused)),
+ int actual EXT2FS_ATTR((unused)),
+ errcode_t error)
+{
+ int i;
+ char *p;
+ ext2_filsys fs = (ext2_filsys) channel->app_data;
+ e2fsck_t ctx;
+
+ ctx = (e2fsck_t) fs->priv_data;
+
+ /*
+ * If more than one block was read, try reading each block
+ * separately. We could use the actual bytes read to figure
+ * out where to start, but we don't bother.
+ */
+ if (count > 1) {
+ p = (char *) data;
+ for (i=0; i < count; i++, p += channel->block_size, block++) {
+ error = io_channel_read_blk(channel, block,
+ 1, p);
+ if (error)
+ return error;
+ }
+ return 0;
+ }
+ if (operation)
+ printf(_("Error reading block %lu (%s) while %s. "), block,
+ error_message(error), operation);
+ else
+ printf(_("Error reading block %lu (%s). "), block,
+ error_message(error));
+ preenhalt(ctx);
+ if (ask(ctx, _("Ignore error"), 1)) {
+ if (ask(ctx, _("Force rewrite"), 1))
+ io_channel_write_blk(channel, block, 1, data);
+ return 0;
+ }
+
+ return error;
+}
+
+static errcode_t e2fsck_handle_write_error(io_channel channel,
+ unsigned long block,
+ int count,
+ const void *data,
+ size_t size EXT2FS_ATTR((unused)),
+ int actual EXT2FS_ATTR((unused)),
+ errcode_t error)
+{
+ int i;
+ const char *p;
+ ext2_filsys fs = (ext2_filsys) channel->app_data;
+ e2fsck_t ctx;
+
+ ctx = (e2fsck_t) fs->priv_data;
+
+ /*
+ * If more than one block was written, try writing each block
+ * separately. We could use the actual bytes read to figure
+ * out where to start, but we don't bother.
+ */
+ if (count > 1) {
+ p = (const char *) data;
+ for (i=0; i < count; i++, p += channel->block_size, block++) {
+ error = io_channel_write_blk(channel, block,
+ 1, p);
+ if (error)
+ return error;
+ }
+ return 0;
+ }
+
+ if (operation)
+ printf(_("Error writing block %lu (%s) while %s. "), block,
+ error_message(error), operation);
+ else
+ printf(_("Error writing block %lu (%s). "), block,
+ error_message(error));
+ preenhalt(ctx);
+ if (ask(ctx, _("Ignore error"), 1))
+ return 0;
+
+ return error;
+}
+
+const char *ehandler_operation(const char *op)
+{
+ const char *ret = operation;
+
+ operation = op;
+ return ret;
+}
+
+void ehandler_init(io_channel channel)
+{
+ channel->read_error = e2fsck_handle_read_error;
+ channel->write_error = e2fsck_handle_write_error;
+}
+/*
+ * journal.c --- code for handling the "ext3" journal
+ *
+ * Copyright (C) 2000 Andreas Dilger
+ * Copyright (C) 2000 Theodore Ts'o
+ *
+ * Parts of the code are based on fs/jfs/journal.c by Stephen C. Tweedie
+ * Copyright (C) 1999 Red Hat Software
+ *
+ * This file may be redistributed under the terms of the
+ * GNU General Public License version 2 or at your discretion
+ * any later version.
+ */
+
+#define MNT_FL (MS_MGC_VAL | MS_RDONLY)
+
+
+#ifdef __CONFIG_JBD_DEBUG__E2FS /* Enabled by configure --enable-jfs-debug */
+static int bh_count = 0;
+#endif
+
+/*
+ * Define USE_INODE_IO to use the inode_io.c / fileio.c codepaths.
+ * This creates a larger static binary, and a smaller binary using
+ * shared libraries. It's also probably slightly less CPU-efficient,
+ * which is why it's not on by default. But, it's a good way of
+ * testing the functions in inode_io.c and fileio.c.
+ */
+#undef USE_INODE_IO
+
+/* Kernel compatibility functions for handling the journal. These allow us
+ * to use the recovery.c file virtually unchanged from the kernel, so we
+ * don't have to do much to keep kernel and user recovery in sync.
+ */
+int journal_bmap(journal_t *journal, blk_t block, unsigned long *phys)
+{
+#ifdef USE_INODE_IO
+ *phys = block;
+ return 0;
+#else
+ struct inode *inode = journal->j_inode;
+ errcode_t retval;
+ blk_t pblk;
+
+ if (!inode) {
+ *phys = block;
+ return 0;
+ }
+
+ retval= ext2fs_bmap(inode->i_ctx->fs, inode->i_ino,
+ &inode->i_ext2, NULL, 0, block, &pblk);
+ *phys = pblk;
+ return (retval);
+#endif
+}
+
+struct buffer_head *getblk(kdev_t kdev, blk_t blocknr, int blocksize)
+{
+ struct buffer_head *bh;
+
+ bh = e2fsck_allocate_memory(kdev->k_ctx, sizeof(*bh), "block buffer");
+ if (!bh)
+ return NULL;
+
+ jfs_debug(4, "getblk for block %lu (%d bytes)(total %d)\n",
+ (unsigned long) blocknr, blocksize, ++bh_count);
+
+ bh->b_ctx = kdev->k_ctx;
+ if (kdev->k_dev == K_DEV_FS)
+ bh->b_io = kdev->k_ctx->fs->io;
+ else
+ bh->b_io = kdev->k_ctx->journal_io;
+ bh->b_size = blocksize;
+ bh->b_blocknr = blocknr;
+
+ return bh;
+}
+
+void sync_blockdev(kdev_t kdev)
+{
+ io_channel io;
+
+ if (kdev->k_dev == K_DEV_FS)
+ io = kdev->k_ctx->fs->io;
+ else
+ io = kdev->k_ctx->journal_io;
+
+ io_channel_flush(io);
+}
+
+void ll_rw_block(int rw, int nr, struct buffer_head *bhp[])
+{
+ int retval;
+ struct buffer_head *bh;
+
+ for (; nr > 0; --nr) {
+ bh = *bhp++;
+ if (rw == READ && !bh->b_uptodate) {
+ jfs_debug(3, "reading block %lu/%p\n",
+ (unsigned long) bh->b_blocknr, (void *) bh);
+ retval = io_channel_read_blk(bh->b_io,
+ bh->b_blocknr,
+ 1, bh->b_data);
+ if (retval) {
+ com_err(bh->b_ctx->device_name, retval,
+ "while reading block %lu\n",
+ (unsigned long) bh->b_blocknr);
+ bh->b_err = retval;
+ continue;
+ }
+ bh->b_uptodate = 1;
+ } else if (rw == WRITE && bh->b_dirty) {
+ jfs_debug(3, "writing block %lu/%p\n",
+ (unsigned long) bh->b_blocknr, (void *) bh);
+ retval = io_channel_write_blk(bh->b_io,
+ bh->b_blocknr,
+ 1, bh->b_data);
+ if (retval) {
+ com_err(bh->b_ctx->device_name, retval,
+ "while writing block %lu\n",
+ (unsigned long) bh->b_blocknr);
+ bh->b_err = retval;
+ continue;
+ }
+ bh->b_dirty = 0;
+ bh->b_uptodate = 1;
+ } else {
+ jfs_debug(3, "no-op %s for block %lu\n",
+ rw == READ ? "read" : "write",
+ (unsigned long) bh->b_blocknr);
+ }
+ }
+}
+
+void mark_buffer_dirty(struct buffer_head *bh)
+{
+ bh->b_dirty = 1;
+}
+
+static void mark_buffer_clean(struct buffer_head * bh)
+{
+ bh->b_dirty = 0;
+}
+
+void brelse(struct buffer_head *bh)
+{
+ if (bh->b_dirty)
+ ll_rw_block(WRITE, 1, &bh);
+ jfs_debug(3, "freeing block %lu/%p (total %d)\n",
+ (unsigned long) bh->b_blocknr, (void *) bh, --bh_count);
+ ext2fs_free_mem(&bh);
+}
+
+int buffer_uptodate(struct buffer_head *bh)
+{
+ return bh->b_uptodate;
+}
+
+void mark_buffer_uptodate(struct buffer_head *bh, int val)
+{
+ bh->b_uptodate = val;
+}
+
+void wait_on_buffer(struct buffer_head *bh)
+{
+ if (!bh->b_uptodate)
+ ll_rw_block(READ, 1, &bh);
+}
+
+
+static void e2fsck_clear_recover(e2fsck_t ctx, int error)
+{
+ ctx->fs->super->s_feature_incompat &= ~EXT3_FEATURE_INCOMPAT_RECOVER;
+
+ /* if we had an error doing journal recovery, we need a full fsck */
+ if (error)
+ ctx->fs->super->s_state &= ~EXT2_VALID_FS;
+ ext2fs_mark_super_dirty(ctx->fs);
+}
+
+static errcode_t e2fsck_get_journal(e2fsck_t ctx, journal_t **ret_journal)
+{
+ struct ext2_super_block *sb = ctx->fs->super;
+ struct ext2_super_block jsuper;
+ struct problem_context pctx;
+ struct buffer_head *bh;
+ struct inode *j_inode = NULL;
+ struct kdev_s *dev_fs = NULL, *dev_journal;
+ const char *journal_name = 0;
+ journal_t *journal = NULL;
+ errcode_t retval = 0;
+ io_manager io_ptr = 0;
+ unsigned long start = 0;
+ blk_t blk;
+ int ext_journal = 0;
+ int tried_backup_jnl = 0;
+ int i;
+
+ clear_problem_context(&pctx);
+
+ journal = e2fsck_allocate_memory(ctx, sizeof(journal_t), "journal");
+ if (!journal) {
+ return EXT2_ET_NO_MEMORY;
+ }
+
+ dev_fs = e2fsck_allocate_memory(ctx, 2*sizeof(struct kdev_s), "kdev");
+ if (!dev_fs) {
+ retval = EXT2_ET_NO_MEMORY;
+ goto errout;
+ }
+ dev_journal = dev_fs+1;
+
+ dev_fs->k_ctx = dev_journal->k_ctx = ctx;
+ dev_fs->k_dev = K_DEV_FS;
+ dev_journal->k_dev = K_DEV_JOURNAL;
+
+ journal->j_dev = dev_journal;
+ journal->j_fs_dev = dev_fs;
+ journal->j_inode = NULL;
+ journal->j_blocksize = ctx->fs->blocksize;
+
+ if (uuid_is_null(sb->s_journal_uuid)) {
+ if (!sb->s_journal_inum)
+ return EXT2_ET_BAD_INODE_NUM;
+ j_inode = e2fsck_allocate_memory(ctx, sizeof(*j_inode),
+ "journal inode");
+ if (!j_inode) {
+ retval = EXT2_ET_NO_MEMORY;
+ goto errout;
+ }
+
+ j_inode->i_ctx = ctx;
+ j_inode->i_ino = sb->s_journal_inum;
+
+ if ((retval = ext2fs_read_inode(ctx->fs,
+ sb->s_journal_inum,
+ &j_inode->i_ext2))) {
+ try_backup_journal:
+ if (sb->s_jnl_backup_type != EXT3_JNL_BACKUP_BLOCKS ||
+ tried_backup_jnl)
+ goto errout;
+ memset(&j_inode->i_ext2, 0, sizeof(struct ext2_inode));
+ memcpy(&j_inode->i_ext2.i_block[0], sb->s_jnl_blocks,
+ EXT2_N_BLOCKS*4);
+ j_inode->i_ext2.i_size = sb->s_jnl_blocks[16];
+ j_inode->i_ext2.i_links_count = 1;
+ j_inode->i_ext2.i_mode = LINUX_S_IFREG | 0600;
+ tried_backup_jnl++;
+ }
+ if (!j_inode->i_ext2.i_links_count ||
+ !LINUX_S_ISREG(j_inode->i_ext2.i_mode)) {
+ retval = EXT2_ET_NO_JOURNAL;
+ goto try_backup_journal;
+ }
+ if (j_inode->i_ext2.i_size / journal->j_blocksize <
+ JFS_MIN_JOURNAL_BLOCKS) {
+ retval = EXT2_ET_JOURNAL_TOO_SMALL;
+ goto try_backup_journal;
+ }
+ for (i=0; i < EXT2_N_BLOCKS; i++) {
+ blk = j_inode->i_ext2.i_block[i];
+ if (!blk) {
+ if (i < EXT2_NDIR_BLOCKS) {
+ retval = EXT2_ET_JOURNAL_TOO_SMALL;
+ goto try_backup_journal;
+ }
+ continue;
+ }
+ if (blk < sb->s_first_data_block ||
+ blk >= sb->s_blocks_count) {
+ retval = EXT2_ET_BAD_BLOCK_NUM;
+ goto try_backup_journal;
+ }
+ }
+ journal->j_maxlen = j_inode->i_ext2.i_size / journal->j_blocksize;
+
+#ifdef USE_INODE_IO
+ retval = ext2fs_inode_io_intern2(ctx->fs, sb->s_journal_inum,
+ &j_inode->i_ext2,
+ &journal_name);
+ if (retval)
+ goto errout;
+
+ io_ptr = inode_io_manager;
+#else
+ journal->j_inode = j_inode;
+ ctx->journal_io = ctx->fs->io;
+ if ((retval = journal_bmap(journal, 0, &start)) != 0)
+ goto errout;
+#endif
+ } else {
+ ext_journal = 1;
+ if (!ctx->journal_name) {
+ char uuid[37];
+
+ uuid_unparse(sb->s_journal_uuid, uuid);
+ ctx->journal_name = blkid_get_devname(ctx->blkid,
+ "UUID", uuid);
+ if (!ctx->journal_name)
+ ctx->journal_name = blkid_devno_to_devname(sb->s_journal_dev);
+ }
+ journal_name = ctx->journal_name;
+
+ if (!journal_name) {
+ fix_problem(ctx, PR_0_CANT_FIND_JOURNAL, &pctx);
+ return EXT2_ET_LOAD_EXT_JOURNAL;
+ }
+
+ jfs_debug(1, "Using journal file %s\n", journal_name);
+ io_ptr = unix_io_manager;
+ }
+
+#if 0
+ test_io_backing_manager = io_ptr;
+ io_ptr = test_io_manager;
+#endif
+#ifndef USE_INODE_IO
+ if (ext_journal)
+#endif
+ retval = io_ptr->open(journal_name, IO_FLAG_RW,
+ &ctx->journal_io);
+ if (retval)
+ goto errout;
+
+ io_channel_set_blksize(ctx->journal_io, ctx->fs->blocksize);
+
+ if (ext_journal) {
+ if (ctx->fs->blocksize == 1024)
+ start = 1;
+ bh = getblk(dev_journal, start, ctx->fs->blocksize);
+ if (!bh) {
+ retval = EXT2_ET_NO_MEMORY;
+ goto errout;
+ }
+ ll_rw_block(READ, 1, &bh);
+ if ((retval = bh->b_err) != 0)
+ goto errout;
+ memcpy(&jsuper, start ? bh->b_data : bh->b_data + 1024,
+ sizeof(jsuper));
+ brelse(bh);
+#ifdef EXT2FS_ENABLE_SWAPFS
+ if (jsuper.s_magic == ext2fs_swab16(EXT2_SUPER_MAGIC))
+ ext2fs_swap_super(&jsuper);
+#endif
+ if (jsuper.s_magic != EXT2_SUPER_MAGIC ||
+ !(jsuper.s_feature_incompat & EXT3_FEATURE_INCOMPAT_JOURNAL_DEV)) {
+ fix_problem(ctx, PR_0_EXT_JOURNAL_BAD_SUPER, &pctx);
+ retval = EXT2_ET_LOAD_EXT_JOURNAL;
+ goto errout;
+ }
+ /* Make sure the journal UUID is correct */
+ if (memcmp(jsuper.s_uuid, ctx->fs->super->s_journal_uuid,
+ sizeof(jsuper.s_uuid))) {
+ fix_problem(ctx, PR_0_JOURNAL_BAD_UUID, &pctx);
+ retval = EXT2_ET_LOAD_EXT_JOURNAL;
+ goto errout;
+ }
+
+ journal->j_maxlen = jsuper.s_blocks_count;
+ start++;
+ }
+
+ if (!(bh = getblk(dev_journal, start, journal->j_blocksize))) {
+ retval = EXT2_ET_NO_MEMORY;
+ goto errout;
+ }
+
+ journal->j_sb_buffer = bh;
+ journal->j_superblock = (journal_superblock_t *)bh->b_data;
+
+#ifdef USE_INODE_IO
+ if (j_inode)
+ ext2fs_free_mem(&j_inode);
+#endif
+
+ *ret_journal = journal;
+ return 0;
+
+errout:
+ if (dev_fs)
+ ext2fs_free_mem(&dev_fs);
+ if (j_inode)
+ ext2fs_free_mem(&j_inode);
+ if (journal)
+ ext2fs_free_mem(&journal);
+ return retval;
+
+}
+
+static errcode_t e2fsck_journal_fix_bad_inode(e2fsck_t ctx,
+ struct problem_context *pctx)
+{
+ struct ext2_super_block *sb = ctx->fs->super;
+ int recover = ctx->fs->super->s_feature_incompat &
+ EXT3_FEATURE_INCOMPAT_RECOVER;
+ int has_journal = ctx->fs->super->s_feature_compat &
+ EXT3_FEATURE_COMPAT_HAS_JOURNAL;
+
+ if (has_journal || sb->s_journal_inum) {
+ /* The journal inode is bogus, remove and force full fsck */
+ pctx->ino = sb->s_journal_inum;
+ if (fix_problem(ctx, PR_0_JOURNAL_BAD_INODE, pctx)) {
+ if (has_journal && sb->s_journal_inum)
+ printf("*** ext3 journal has been deleted - "
+ "filesystem is now ext2 only ***\n\n");
+ sb->s_feature_compat &= ~EXT3_FEATURE_COMPAT_HAS_JOURNAL;
+ sb->s_journal_inum = 0;
+ ctx->flags |= E2F_FLAG_JOURNAL_INODE; /* FIXME: todo */
+ e2fsck_clear_recover(ctx, 1);
+ return 0;
+ }
+ return EXT2_ET_BAD_INODE_NUM;
+ } else if (recover) {
+ if (fix_problem(ctx, PR_0_JOURNAL_RECOVER_SET, pctx)) {
+ e2fsck_clear_recover(ctx, 1);
+ return 0;
+ }
+ return EXT2_ET_UNSUPP_FEATURE;
+ }
+ return 0;
+}
+
+#define V1_SB_SIZE 0x0024
+static void clear_v2_journal_fields(journal_t *journal)
+{
+ e2fsck_t ctx = journal->j_dev->k_ctx;
+ struct problem_context pctx;
+
+ clear_problem_context(&pctx);
+
+ if (!fix_problem(ctx, PR_0_CLEAR_V2_JOURNAL, &pctx))
+ return;
+
+ memset(((char *) journal->j_superblock) + V1_SB_SIZE, 0,
+ ctx->fs->blocksize-V1_SB_SIZE);
+ mark_buffer_dirty(journal->j_sb_buffer);
+}
+
+
+static errcode_t e2fsck_journal_load(journal_t *journal)
+{
+ e2fsck_t ctx = journal->j_dev->k_ctx;
+ journal_superblock_t *jsb;
+ struct buffer_head *jbh = journal->j_sb_buffer;
+ struct problem_context pctx;
+
+ clear_problem_context(&pctx);
+
+ ll_rw_block(READ, 1, &jbh);
+ if (jbh->b_err) {
+ com_err(ctx->device_name, jbh->b_err,
+ _("reading journal superblock\n"));
+ return jbh->b_err;
+ }
+
+ jsb = journal->j_superblock;
+ /* If we don't even have JFS_MAGIC, we probably have a wrong inode */
+ if (jsb->s_header.h_magic != htonl(JFS_MAGIC_NUMBER))
+ return e2fsck_journal_fix_bad_inode(ctx, &pctx);
+
+ switch (ntohl(jsb->s_header.h_blocktype)) {
+ case JFS_SUPERBLOCK_V1:
+ journal->j_format_version = 1;
+ if (jsb->s_feature_compat ||
+ jsb->s_feature_incompat ||
+ jsb->s_feature_ro_compat ||
+ jsb->s_nr_users)
+ clear_v2_journal_fields(journal);
+ break;
+
+ case JFS_SUPERBLOCK_V2:
+ journal->j_format_version = 2;
+ if (ntohl(jsb->s_nr_users) > 1 &&
+ uuid_is_null(ctx->fs->super->s_journal_uuid))
+ clear_v2_journal_fields(journal);
+ if (ntohl(jsb->s_nr_users) > 1) {
+ fix_problem(ctx, PR_0_JOURNAL_UNSUPP_MULTIFS, &pctx);
+ return EXT2_ET_JOURNAL_UNSUPP_VERSION;
+ }
+ break;
+
+ /*
+ * These should never appear in a journal super block, so if
+ * they do, the journal is badly corrupted.
+ */
+ case JFS_DESCRIPTOR_BLOCK:
+ case JFS_COMMIT_BLOCK:
+ case JFS_REVOKE_BLOCK:
+ return EXT2_ET_CORRUPT_SUPERBLOCK;
+
+ /* If we don't understand the superblock major type, but there
+ * is a magic number, then it is likely to be a new format we
+ * just don't understand, so leave it alone. */
+ default:
+ return EXT2_ET_JOURNAL_UNSUPP_VERSION;
+ }
+
+ if (JFS_HAS_INCOMPAT_FEATURE(journal, ~JFS_KNOWN_INCOMPAT_FEATURES))
+ return EXT2_ET_UNSUPP_FEATURE;
+
+ if (JFS_HAS_RO_COMPAT_FEATURE(journal, ~JFS_KNOWN_ROCOMPAT_FEATURES))
+ return EXT2_ET_RO_UNSUPP_FEATURE;
+
+ /* We have now checked whether we know enough about the journal
+ * format to be able to proceed safely, so any other checks that
+ * fail we should attempt to recover from. */
+ if (jsb->s_blocksize != htonl(journal->j_blocksize)) {
+ com_err(ctx->program_name, EXT2_ET_CORRUPT_SUPERBLOCK,
+ _("%s: no valid journal superblock found\n"),
+ ctx->device_name);
+ return EXT2_ET_CORRUPT_SUPERBLOCK;
+ }
+
+ if (ntohl(jsb->s_maxlen) < journal->j_maxlen)
+ journal->j_maxlen = ntohl(jsb->s_maxlen);
+ else if (ntohl(jsb->s_maxlen) > journal->j_maxlen) {
+ com_err(ctx->program_name, EXT2_ET_CORRUPT_SUPERBLOCK,
+ _("%s: journal too short\n"),
+ ctx->device_name);
+ return EXT2_ET_CORRUPT_SUPERBLOCK;
+ }
+
+ journal->j_tail_sequence = ntohl(jsb->s_sequence);
+ journal->j_transaction_sequence = journal->j_tail_sequence;
+ journal->j_tail = ntohl(jsb->s_start);
+ journal->j_first = ntohl(jsb->s_first);
+ journal->j_last = ntohl(jsb->s_maxlen);
+
+ return 0;
+}
+
+static void e2fsck_journal_reset_super(e2fsck_t ctx, journal_superblock_t *jsb,
+ journal_t *journal)
+{
+ char *p;
+ union {
+ uuid_t uuid;
+ __u32 val[4];
+ } u;
+ __u32 new_seq = 0;
+ int i;
+
+ /* Leave a valid existing V1 superblock signature alone.
+ * Anything unrecognisable we overwrite with a new V2
+ * signature. */
+
+ if (jsb->s_header.h_magic != htonl(JFS_MAGIC_NUMBER) ||
+ jsb->s_header.h_blocktype != htonl(JFS_SUPERBLOCK_V1)) {
+ jsb->s_header.h_magic = htonl(JFS_MAGIC_NUMBER);
+ jsb->s_header.h_blocktype = htonl(JFS_SUPERBLOCK_V2);
+ }
+
+ /* Zero out everything else beyond the superblock header */
+
+ p = ((char *) jsb) + sizeof(journal_header_t);
+ memset (p, 0, ctx->fs->blocksize-sizeof(journal_header_t));
+
+ jsb->s_blocksize = htonl(ctx->fs->blocksize);
+ jsb->s_maxlen = htonl(journal->j_maxlen);
+ jsb->s_first = htonl(1);
+
+ /* Initialize the journal sequence number so that there is "no"
+ * chance we will find old "valid" transactions in the journal.
+ * This avoids the need to zero the whole journal (slow to do,
+ * and risky when we are just recovering the filesystem).
+ */
+ uuid_generate(u.uuid);
+ for (i = 0; i < 4; i ++)
+ new_seq ^= u.val[i];
+ jsb->s_sequence = htonl(new_seq);
+
+ mark_buffer_dirty(journal->j_sb_buffer);
+ ll_rw_block(WRITE, 1, &journal->j_sb_buffer);
+}
+
+static errcode_t e2fsck_journal_fix_corrupt_super(e2fsck_t ctx,
+ journal_t *journal,
+ struct problem_context *pctx)
+{
+ struct ext2_super_block *sb = ctx->fs->super;
+ int recover = ctx->fs->super->s_feature_incompat &
+ EXT3_FEATURE_INCOMPAT_RECOVER;
+
+ if (sb->s_feature_compat & EXT3_FEATURE_COMPAT_HAS_JOURNAL) {
+ if (fix_problem(ctx, PR_0_JOURNAL_BAD_SUPER, pctx)) {
+ e2fsck_journal_reset_super(ctx, journal->j_superblock,
+ journal);
+ journal->j_transaction_sequence = 1;
+ e2fsck_clear_recover(ctx, recover);
+ return 0;
+ }
+ return EXT2_ET_CORRUPT_SUPERBLOCK;
+ } else if (e2fsck_journal_fix_bad_inode(ctx, pctx))
+ return EXT2_ET_CORRUPT_SUPERBLOCK;
+
+ return 0;
+}
+
+static void e2fsck_journal_release(e2fsck_t ctx, journal_t *journal,
+ int reset, int drop)
+{
+ journal_superblock_t *jsb;
+
+ if (drop)
+ mark_buffer_clean(journal->j_sb_buffer);
+ else if (!(ctx->options & E2F_OPT_READONLY)) {
+ jsb = journal->j_superblock;
+ jsb->s_sequence = htonl(journal->j_transaction_sequence);
+ if (reset)
+ jsb->s_start = 0; /* this marks the journal as empty */
+ mark_buffer_dirty(journal->j_sb_buffer);
+ }
+ brelse(journal->j_sb_buffer);
+
+ if (ctx->journal_io) {
+ if (ctx->fs && ctx->fs->io != ctx->journal_io)
+ io_channel_close(ctx->journal_io);
+ ctx->journal_io = 0;
+ }
+
+#ifndef USE_INODE_IO
+ if (journal->j_inode)
+ ext2fs_free_mem(&journal->j_inode);
+#endif
+ if (journal->j_fs_dev)
+ ext2fs_free_mem(&journal->j_fs_dev);
+ ext2fs_free_mem(&journal);
+}
+
+/*
+ * This function makes sure that the superblock fields regarding the
+ * journal are consistent.
+ */
+int e2fsck_check_ext3_journal(e2fsck_t ctx)
+{
+ struct ext2_super_block *sb = ctx->fs->super;
+ journal_t *journal;
+ int recover = ctx->fs->super->s_feature_incompat &
+ EXT3_FEATURE_INCOMPAT_RECOVER;
+ struct problem_context pctx;
+ problem_t problem;
+ int reset = 0, force_fsck = 0;
+ int retval;
+
+ /* If we don't have any journal features, don't do anything more */
+ if (!(sb->s_feature_compat & EXT3_FEATURE_COMPAT_HAS_JOURNAL) &&
+ !recover && sb->s_journal_inum == 0 && sb->s_journal_dev == 0 &&
+ uuid_is_null(sb->s_journal_uuid))
+ return 0;
+
+ clear_problem_context(&pctx);
+ pctx.num = sb->s_journal_inum;
+
+ retval = e2fsck_get_journal(ctx, &journal);
+ if (retval) {
+ if ((retval == EXT2_ET_BAD_INODE_NUM) ||
+ (retval == EXT2_ET_BAD_BLOCK_NUM) ||
+ (retval == EXT2_ET_JOURNAL_TOO_SMALL) ||
+ (retval == EXT2_ET_NO_JOURNAL))
+ return e2fsck_journal_fix_bad_inode(ctx, &pctx);
+ return retval;
+ }
+
+ retval = e2fsck_journal_load(journal);
+ if (retval) {
+ if ((retval == EXT2_ET_CORRUPT_SUPERBLOCK) ||
+ ((retval == EXT2_ET_UNSUPP_FEATURE) &&
+ (!fix_problem(ctx, PR_0_JOURNAL_UNSUPP_INCOMPAT,
+ &pctx))) ||
+ ((retval == EXT2_ET_RO_UNSUPP_FEATURE) &&
+ (!fix_problem(ctx, PR_0_JOURNAL_UNSUPP_ROCOMPAT,
+ &pctx))) ||
+ ((retval == EXT2_ET_JOURNAL_UNSUPP_VERSION) &&
+ (!fix_problem(ctx, PR_0_JOURNAL_UNSUPP_VERSION, &pctx))))
+ retval = e2fsck_journal_fix_corrupt_super(ctx, journal,
+ &pctx);
+ e2fsck_journal_release(ctx, journal, 0, 1);
+ return retval;
+ }
+
+ /*
+ * We want to make the flags consistent here. We will not leave with
+ * needs_recovery set but has_journal clear. We can't get in a loop
+ * with -y, -n, or -p, only if a user isn't making up their mind.
+ */
+no_has_journal:
+ if (!(sb->s_feature_compat & EXT3_FEATURE_COMPAT_HAS_JOURNAL)) {
+ recover = sb->s_feature_incompat & EXT3_FEATURE_INCOMPAT_RECOVER;
+ pctx.str = "inode";
+ if (fix_problem(ctx, PR_0_JOURNAL_HAS_JOURNAL, &pctx)) {
+ if (recover &&
+ !fix_problem(ctx, PR_0_JOURNAL_RECOVER_SET, &pctx))
+ goto no_has_journal;
+ /*
+ * Need a full fsck if we are releasing a
+ * journal stored on a reserved inode.
+ */
+ force_fsck = recover ||
+ (sb->s_journal_inum < EXT2_FIRST_INODE(sb));
+ /* Clear all of the journal fields */
+ sb->s_journal_inum = 0;
+ sb->s_journal_dev = 0;
+ memset(sb->s_journal_uuid, 0,
+ sizeof(sb->s_journal_uuid));
+ e2fsck_clear_recover(ctx, force_fsck);
+ } else if (!(ctx->options & E2F_OPT_READONLY)) {
+ sb->s_feature_compat |= EXT3_FEATURE_COMPAT_HAS_JOURNAL;
+ ext2fs_mark_super_dirty(ctx->fs);
+ }
+ }
+
+ if (sb->s_feature_compat & EXT3_FEATURE_COMPAT_HAS_JOURNAL &&
+ !(sb->s_feature_incompat & EXT3_FEATURE_INCOMPAT_RECOVER) &&
+ journal->j_superblock->s_start != 0) {
+ /* Print status information */
+ fix_problem(ctx, PR_0_JOURNAL_RECOVERY_CLEAR, &pctx);
+ if (ctx->superblock)
+ problem = PR_0_JOURNAL_RUN_DEFAULT;
+ else
+ problem = PR_0_JOURNAL_RUN;
+ if (fix_problem(ctx, problem, &pctx)) {
+ ctx->options |= E2F_OPT_FORCE;
+ sb->s_feature_incompat |=
+ EXT3_FEATURE_INCOMPAT_RECOVER;
+ ext2fs_mark_super_dirty(ctx->fs);
+ } else if (fix_problem(ctx,
+ PR_0_JOURNAL_RESET_JOURNAL, &pctx)) {
+ reset = 1;
+ sb->s_state &= ~EXT2_VALID_FS;
+ ext2fs_mark_super_dirty(ctx->fs);
+ }
+ /*
+ * If the user answers no to the above question, we
+ * ignore the fact that journal apparently has data;
+ * accidentally replaying over valid data would be far
+ * worse than skipping a questionable recovery.
+ *
+ * XXX should we abort with a fatal error here? What
+ * will the ext3 kernel code do if a filesystem with
+ * !NEEDS_RECOVERY but with a non-zero
+ * journal->j_superblock->s_start is mounted?
+ */
+ }
+
+ e2fsck_journal_release(ctx, journal, reset, 0);
+ return retval;
+}
+
+static errcode_t recover_ext3_journal(e2fsck_t ctx)
+{
+ journal_t *journal;
+ int retval;
+
+ journal_init_revoke_caches();
+ retval = e2fsck_get_journal(ctx, &journal);
+ if (retval)
+ return retval;
+
+ retval = e2fsck_journal_load(journal);
+ if (retval)
+ goto errout;
+
+ retval = journal_init_revoke(journal, 1024);
+ if (retval)
+ goto errout;
+
+ retval = -journal_recover(journal);
+ if (retval)
+ goto errout;
+
+ if (journal->j_superblock->s_errno) {
+ ctx->fs->super->s_state |= EXT2_ERROR_FS;
+ ext2fs_mark_super_dirty(ctx->fs);
+ journal->j_superblock->s_errno = 0;
+ mark_buffer_dirty(journal->j_sb_buffer);
+ }
+
+errout:
+ journal_destroy_revoke(journal);
+ journal_destroy_revoke_caches();
+ e2fsck_journal_release(ctx, journal, 1, 0);
+ return retval;
+}
+
+int e2fsck_run_ext3_journal(e2fsck_t ctx)
+{
+ io_manager io_ptr = ctx->fs->io->manager;
+ int blocksize = ctx->fs->blocksize;
+ errcode_t retval, recover_retval;
+
+ printf(_("%s: recovering journal\n"), ctx->device_name);
+ if (ctx->options & E2F_OPT_READONLY) {
+ printf(_("%s: won't do journal recovery while read-only\n"),
+ ctx->device_name);
+ return EXT2_ET_FILE_RO;
+ }
+
+ if (ctx->fs->flags & EXT2_FLAG_DIRTY)
+ ext2fs_flush(ctx->fs); /* Force out any modifications */
+
+ recover_retval = recover_ext3_journal(ctx);
+
+ /*
+ * Reload the filesystem context to get up-to-date data from disk
+ * because journal recovery will change the filesystem under us.
+ */
+ ext2fs_close(ctx->fs);
+ retval = ext2fs_open(ctx->filesystem_name, EXT2_FLAG_RW,
+ ctx->superblock, blocksize, io_ptr,
+ &ctx->fs);
+
+ if (retval) {
+ com_err(ctx->program_name, retval,
+ _("while trying to re-open %s"),
+ ctx->device_name);
+ fatal_error(ctx, 0);
+ }
+ ctx->fs->priv_data = ctx;
+
+ /* Set the superblock flags */
+ e2fsck_clear_recover(ctx, recover_retval);
+ return recover_retval;
+}
+
+/*
+ * This function will move the journal inode from a visible file in
+ * the filesystem directory hierarchy to the reserved inode if necessary.
+ */
+static const char * const journal_names[] = {
+ ".journal", "journal", ".journal.dat", "journal.dat", 0 };
+
+void e2fsck_move_ext3_journal(e2fsck_t ctx)
+{
+ struct ext2_super_block *sb = ctx->fs->super;
+ struct problem_context pctx;
+ struct ext2_inode inode;
+ ext2_filsys fs = ctx->fs;
+ ext2_ino_t ino;
+ errcode_t retval;
+ const char * const * cpp;
+ int group, mount_flags;
+
+ clear_problem_context(&pctx);
+
+ /*
+ * If the filesystem is opened read-only, or there is no
+ * journal, then do nothing.
+ */
+ if ((ctx->options & E2F_OPT_READONLY) ||
+ (sb->s_journal_inum == 0) ||
+ !(sb->s_feature_compat & EXT3_FEATURE_COMPAT_HAS_JOURNAL))
+ return;
+
+ /*
+ * Read in the journal inode
+ */
+ if (ext2fs_read_inode(fs, sb->s_journal_inum, &inode) != 0)
+ return;
+
+ /*
+ * If it's necessary to backup the journal inode, do so.
+ */
+ if ((sb->s_jnl_backup_type == 0) ||
+ ((sb->s_jnl_backup_type == EXT3_JNL_BACKUP_BLOCKS) &&
+ memcmp(inode.i_block, sb->s_jnl_blocks, EXT2_N_BLOCKS*4))) {
+ if (fix_problem(ctx, PR_0_BACKUP_JNL, &pctx)) {
+ memcpy(sb->s_jnl_blocks, inode.i_block,
+ EXT2_N_BLOCKS*4);
+ sb->s_jnl_blocks[16] = inode.i_size;
+ sb->s_jnl_backup_type = EXT3_JNL_BACKUP_BLOCKS;
+ ext2fs_mark_super_dirty(fs);
+ fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
+ }
+ }
+
+ /*
+ * If the journal is already the hidden inode, then do nothing
+ */
+ if (sb->s_journal_inum == EXT2_JOURNAL_INO)
+ return;
+
+ /*
+ * The journal inode had better have only one link and not be readable.
+ */
+ if (inode.i_links_count != 1)
+ return;
+
+ /*
+ * If the filesystem is mounted, or we can't tell whether
+ * or not it's mounted, do nothing.
+ */
+ retval = ext2fs_check_if_mounted(ctx->filesystem_name, &mount_flags);
+ if (retval || (mount_flags & EXT2_MF_MOUNTED))
+ return;
+
+ /*
+ * If we can't find the name of the journal inode, then do
+ * nothing.
+ */
+ for (cpp = journal_names; *cpp; cpp++) {
+ retval = ext2fs_lookup(fs, EXT2_ROOT_INO, *cpp,
+ strlen(*cpp), 0, &ino);
+ if ((retval == 0) && (ino == sb->s_journal_inum))
+ break;
+ }
+ if (*cpp == 0)
+ return;
+
+ /* We need the inode bitmap to be loaded */
+ retval = ext2fs_read_bitmaps(fs);
+ if (retval)
+ return;
+
+ pctx.str = *cpp;
+ if (!fix_problem(ctx, PR_0_MOVE_JOURNAL, &pctx))
+ return;
+
+ /*
+ * OK, we've done all the checks, let's actually move the
+ * journal inode. Errors at this point mean we need to force
+ * an ext2 filesystem check.
+ */
+ if ((retval = ext2fs_unlink(fs, EXT2_ROOT_INO, *cpp, ino, 0)) != 0)
+ goto err_out;
+ if ((retval = ext2fs_write_inode(fs, EXT2_JOURNAL_INO, &inode)) != 0)
+ goto err_out;
+ sb->s_journal_inum = EXT2_JOURNAL_INO;
+ ext2fs_mark_super_dirty(fs);
+ fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
+ inode.i_links_count = 0;
+ inode.i_dtime = time(0);
+ if ((retval = ext2fs_write_inode(fs, ino, &inode)) != 0)
+ goto err_out;
+
+ group = ext2fs_group_of_ino(fs, ino);
+ ext2fs_unmark_inode_bitmap(fs->inode_map, ino);
+ ext2fs_mark_ib_dirty(fs);
+ fs->group_desc[group].bg_free_inodes_count++;
+ fs->super->s_free_inodes_count++;
+ return;
+
+err_out:
+ pctx.errcode = retval;
+ fix_problem(ctx, PR_0_ERR_MOVE_JOURNAL, &pctx);
+ fs->super->s_state &= ~EXT2_VALID_FS;
+ ext2fs_mark_super_dirty(fs);
+ return;
+}
+
+/*
+ * message.c --- print e2fsck messages (with compression)
+ *
+ * Copyright 1996, 1997 by Theodore Ts'o
+ *
+ * %Begin-Header%
+ * This file may be redistributed under the terms of the GNU Public
+ * License.
+ * %End-Header%
+ *
+ * print_e2fsck_message() prints a message to the user, using
+ * compression techniques and expansions of abbreviations.
+ *
+ * The following % expansions are supported:
+ *
+ * %b <blk> block number
+ * %B <blkcount> integer
+ * %c <blk2> block number
+ * %Di <dirent>->ino inode number
+ * %Dn <dirent>->name string
+ * %Dr <dirent>->rec_len
+ * %Dl <dirent>->name_len
+ * %Dt <dirent>->filetype
+ * %d <dir> inode number
+ * %g <group> integer
+ * %i <ino> inode number
+ * %Is <inode> -> i_size
+ * %IS <inode> -> i_extra_isize
+ * %Ib <inode> -> i_blocks
+ * %Il <inode> -> i_links_count
+ * %Im <inode> -> i_mode
+ * %IM <inode> -> i_mtime
+ * %IF <inode> -> i_faddr
+ * %If <inode> -> i_file_acl
+ * %Id <inode> -> i_dir_acl
+ * %Iu <inode> -> i_uid
+ * %Ig <inode> -> i_gid
+ * %j <ino2> inode number
+ * %m <com_err error message>
+ * %N <num>
+ * %p ext2fs_get_pathname of directory <ino>
+ * %P ext2fs_get_pathname of <dirent>->ino with <ino2> as
+ * the containing directory. (If dirent is NULL
+ * then return the pathname of directory <ino2>)
+ * %q ext2fs_get_pathname of directory <dir>
+ * %Q ext2fs_get_pathname of directory <ino> with <dir> as
+ * the containing directory.
+ * %s <str> miscellaneous string
+ * %S backup superblock
+ * %X <num> hexadecimal format
+ *
+ * The following '@' expansions are supported:
+ *
+ * @a extended attribute
+ * @A error allocating
+ * @b block
+ * @B bitmap
+ * @c compress
+ * @C conflicts with some other fs block
+ * @D deleted
+ * @d directory
+ * @e entry
+ * @E Entry '%Dn' in %p (%i)
+ * @f filesystem
+ * @F for @i %i (%Q) is
+ * @g group
+ * @h HTREE directory inode
+ * @i inode
+ * @I illegal
+ * @j journal
+ * @l lost+found
+ * @L is a link
+ * @o orphaned
+ * @p problem in
+ * @r root inode
+ * @s should be
+ * @S superblock
+ * @u unattached
+ * @v device
+ * @z zero-length
+ */
+
+
+/*
+ * This structure defines the abbreviations used by the text strings
+ * below. The first character in the string is the index letter. An
+ * abbreviation of the form '@<i>' is expanded by looking up the index
+ * letter <i> in the table below.
+ */
+static const char *abbrevs[] = {
+ N_("aextended attribute"),
+ N_("Aerror allocating"),
+ N_("bblock"),
+ N_("Bbitmap"),
+ N_("ccompress"),
+ N_("Cconflicts with some other fs @b"),
+ N_("iinode"),
+ N_("Iillegal"),
+ N_("jjournal"),
+ N_("Ddeleted"),
+ N_("ddirectory"),
+ N_("eentry"),
+ N_("E@e '%Dn' in %p (%i)"),
+ N_("ffilesystem"),
+ N_("Ffor @i %i (%Q) is"),
+ N_("ggroup"),
+ N_("hHTREE @d @i"),
+ N_("llost+found"),
+ N_("Lis a link"),
+ N_("oorphaned"),
+ N_("pproblem in"),
+ N_("rroot @i"),
+ N_("sshould be"),
+ N_("Ssuper@b"),
+ N_("uunattached"),
+ N_("vdevice"),
+ N_("zzero-length"),
+ "@@",
+ 0
+ };
+
+/*
+ * Give more user friendly names to the "special" inodes.
+ */
+#define num_special_inodes 11
+static const char *special_inode_name[] =
+{
+ N_("<The NULL inode>"), /* 0 */
+ N_("<The bad blocks inode>"), /* 1 */
+ "/", /* 2 */
+ N_("<The ACL index inode>"), /* 3 */
+ N_("<The ACL data inode>"), /* 4 */
+ N_("<The boot loader inode>"), /* 5 */
+ N_("<The undelete directory inode>"), /* 6 */
+ N_("<The group descriptor inode>"), /* 7 */
+ N_("<The journal inode>"), /* 8 */
+ N_("<Reserved inode 9>"), /* 9 */
+ N_("<Reserved inode 10>"), /* 10 */
+};
+
+/*
+ * This function does "safe" printing. It will convert non-printable
+ * ASCII characters using '^' and M- notation.
+ */
+static void safe_print(const char *cp, int len)
+{
+ unsigned char ch;
+
+ if (len < 0)
+ len = strlen(cp);
+
+ while (len--) {
+ ch = *cp++;
+ if (ch > 128) {
+ fputs("M-", stdout);
+ ch -= 128;
+ }
+ if ((ch < 32) || (ch == 0x7f)) {
+ fputc('^', stdout);
+ ch ^= 0x40; /* ^@, ^A, ^B; ^? for DEL */
+ }
+ fputc(ch, stdout);
+ }
+}
+
+
+/*
+ * This function prints a pathname, using the ext2fs_get_pathname
+ * function
+ */
+static void print_pathname(ext2_filsys fs, ext2_ino_t dir, ext2_ino_t ino)
+{
+ errcode_t retval;
+ char *path;
+
+ if (!dir && (ino < num_special_inodes)) {
+ fputs(_(special_inode_name[ino]), stdout);
+ return;
+ }
+
+ retval = ext2fs_get_pathname(fs, dir, ino, &path);
+ if (retval)
+ fputs("???", stdout);
+ else {
+ safe_print(path, -1);
+ ext2fs_free_mem(&path);
+ }
+}
+
+/*
+ * This function handles the '@' expansion. We allow recursive
+ * expansion; an @ expression can contain further '@' and '%'
+ * expressions.
+ */
+static _INLINE_ void expand_at_expression(e2fsck_t ctx, char ch,
+ struct problem_context *pctx,
+ int *first)
+{
+ const char **cpp, *str;
+
+ /* Search for the abbreviation */
+ for (cpp = abbrevs; *cpp; cpp++) {
+ if (ch == *cpp[0])
+ break;
+ }
+ if (*cpp) {
+ str = _(*cpp) + 1;
+ if (*first && islower(*str)) {
+ *first = 0;
+ fputc(toupper(*str++), stdout);
+ }
+ print_e2fsck_message(ctx, str, pctx, *first);
+ } else
+ printf("@%c", ch);
+}
+
+/*
+ * This function expands '%IX' expressions
+ */
+static _INLINE_ void expand_inode_expression(char ch,
+ struct problem_context *ctx)
+{
+ struct ext2_inode *inode;
+ struct ext2_inode_large *large_inode;
+ char * time_str;
+ time_t t;
+ int do_gmt = -1;
+
+ if (!ctx || !ctx->inode)
+ goto no_inode;
+
+ inode = ctx->inode;
+ large_inode = (struct ext2_inode_large *) inode;
+
+ switch (ch) {
+ case 's':
+ if (LINUX_S_ISDIR(inode->i_mode))
+ printf("%u", inode->i_size);
+ else {
+#ifdef EXT2_NO_64_TYPE
+ if (inode->i_size_high)
+ printf("0x%x%08x", inode->i_size_high,
+ inode->i_size);
+ else
+ printf("%u", inode->i_size);
+#else
+ printf("%llu", (inode->i_size |
+ ((__u64) inode->i_size_high << 32)));
+#endif
+ }
+ break;
+ case 'S':
+ printf("%u", large_inode->i_extra_isize);
+ break;
+ case 'b':
+ printf("%u", inode->i_blocks);
+ break;
+ case 'l':
+ printf("%d", inode->i_links_count);
+ break;
+ case 'm':
+ printf("0%o", inode->i_mode);
+ break;
+ case 'M':
+ /* The diet libc doesn't respect the TZ environemnt variable */
+ if (do_gmt == -1) {
+ time_str = getenv("TZ");
+ if (!time_str)
+ time_str = "";
+ do_gmt = !strcmp(time_str, "GMT");
+ }
+ t = inode->i_mtime;
+ time_str = asctime(do_gmt ? gmtime(&t) : localtime(&t));
+ printf("%.24s", time_str);
+ break;
+ case 'F':
+ printf("%u", inode->i_faddr);
+ break;
+ case 'f':
+ printf("%u", inode->i_file_acl);
+ break;
+ case 'd':
+ printf("%u", (LINUX_S_ISDIR(inode->i_mode) ?
+ inode->i_dir_acl : 0));
+ break;
+ case 'u':
+ printf("%d", (inode->i_uid |
+ (inode->osd2.linux2.l_i_uid_high << 16)));
+ break;
+ case 'g':
+ printf("%d", (inode->i_gid |
+ (inode->osd2.linux2.l_i_gid_high << 16)));
+ break;
+ default:
+ no_inode:
+ printf("%%I%c", ch);
+ break;
+ }
+}
+
+/*
+ * This function expands '%dX' expressions
+ */
+static _INLINE_ void expand_dirent_expression(char ch,
+ struct problem_context *ctx)
+{
+ struct ext2_dir_entry *dirent;
+ int len;
+
+ if (!ctx || !ctx->dirent)
+ goto no_dirent;
+
+ dirent = ctx->dirent;
+
+ switch (ch) {
+ case 'i':
+ printf("%u", dirent->inode);
+ break;
+ case 'n':
+ len = dirent->name_len & 0xFF;
+ if (len > EXT2_NAME_LEN)
+ len = EXT2_NAME_LEN;
+ if (len > dirent->rec_len)
+ len = dirent->rec_len;
+ safe_print(dirent->name, len);
+ break;
+ case 'r':
+ printf("%u", dirent->rec_len);
+ break;
+ case 'l':
+ printf("%u", dirent->name_len & 0xFF);
+ break;
+ case 't':
+ printf("%u", dirent->name_len >> 8);
+ break;
+ default:
+ no_dirent:
+ printf("%%D%c", ch);
+ break;
+ }
+}
+
+static _INLINE_ void expand_percent_expression(ext2_filsys fs, char ch,
+ struct problem_context *ctx)
+{
+ if (!ctx)
+ goto no_context;
+
+ switch (ch) {
+ case '%':
+ fputc('%', stdout);
+ break;
+ case 'b':
+ printf("%u", ctx->blk);
+ break;
+ case 'B':
+#ifdef EXT2_NO_64_TYPE
+ printf("%d", ctx->blkcount);
+#else
+ printf("%lld", ctx->blkcount);
+#endif
+ break;
+ case 'c':
+ printf("%u", ctx->blk2);
+ break;
+ case 'd':
+ printf("%u", ctx->dir);
+ break;
+ case 'g':
+ printf("%d", ctx->group);
+ break;
+ case 'i':
+ printf("%u", ctx->ino);
+ break;
+ case 'j':
+ printf("%u", ctx->ino2);
+ break;
+ case 'm':
+ printf("%s", error_message(ctx->errcode));
+ break;
+ case 'N':
+#ifdef EXT2_NO_64_TYPE
+ printf("%u", ctx->num);
+#else
+ printf("%llu", ctx->num);
+#endif
+ break;
+ case 'p':
+ print_pathname(fs, ctx->ino, 0);
+ break;
+ case 'P':
+ print_pathname(fs, ctx->ino2,
+ ctx->dirent ? ctx->dirent->inode : 0);
+ break;
+ case 'q':
+ print_pathname(fs, ctx->dir, 0);
+ break;
+ case 'Q':
+ print_pathname(fs, ctx->dir, ctx->ino);
+ break;
+ case 'S':
+ printf("%d", get_backup_sb(NULL, fs, NULL, NULL));
+ break;
+ case 's':
+ printf("%s", ctx->str ? ctx->str : "NULL");
+ break;
+ case 'X':
+#ifdef EXT2_NO_64_TYPE
+ printf("0x%x", ctx->num);
+#else
+ printf("0x%llx", ctx->num);
+#endif
+ break;
+ default:
+ no_context:
+ printf("%%%c", ch);
+ break;
+ }
+}
+
+void print_e2fsck_message(e2fsck_t ctx, const char *msg,
+ struct problem_context *pctx, int first)
+{
+ ext2_filsys fs = ctx->fs;
+ const char * cp;
+ int i;
+
+ e2fsck_clear_progbar(ctx);
+ for (cp = msg; *cp; cp++) {
+ if (cp[0] == '@') {
+ cp++;
+ expand_at_expression(ctx, *cp, pctx, &first);
+ } else if (cp[0] == '%' && cp[1] == 'I') {
+ cp += 2;
+ expand_inode_expression(*cp, pctx);
+ } else if (cp[0] == '%' && cp[1] == 'D') {
+ cp += 2;
+ expand_dirent_expression(*cp, pctx);
+ } else if ((cp[0] == '%')) {
+ cp++;
+ expand_percent_expression(fs, *cp, pctx);
+ } else {
+ for (i=0; cp[i]; i++)
+ if ((cp[i] == '@') || cp[i] == '%')
+ break;
+ printf("%.*s", i, cp);
+ cp += i-1;
+ }
+ first = 0;
+ }
+}
+/*
+ * pass1.c -- pass #1 of e2fsck: sequential scan of the inode table
+ *
+ * Copyright (C) 1993, 1994, 1995, 1996, 1997 Theodore Ts'o.
+ *
+ * %Begin-Header%
+ * This file may be redistributed under the terms of the GNU Public
+ * License.
+ * %End-Header%
+ *
+ * Pass 1 of e2fsck iterates over all the inodes in the filesystems,
+ * and applies the following tests to each inode:
+ *
+ * - The mode field of the inode must be legal.
+ * - The size and block count fields of the inode are correct.
+ * - A data block must not be used by another inode
+ *
+ * Pass 1 also gathers the collects the following information:
+ *
+ * - A bitmap of which inodes are in use. (inode_used_map)
+ * - A bitmap of which inodes are directories. (inode_dir_map)
+ * - A bitmap of which inodes are regular files. (inode_reg_map)
+ * - A bitmap of which inodes have bad fields. (inode_bad_map)
+ * - A bitmap of which inodes are in bad blocks. (inode_bb_map)
+ * - A bitmap of which inodes are imagic inodes. (inode_imagic_map)
+ * - A bitmap of which blocks are in use. (block_found_map)
+ * - A bitmap of which blocks are in use by two inodes (block_dup_map)
+ * - The data blocks of the directory inodes. (dir_map)
+ *
+ * Pass 1 is designed to stash away enough information so that the
+ * other passes should not need to read in the inode information
+ * during the normal course of a filesystem check. (Althogh if an
+ * inconsistency is detected, other passes may need to read in an
+ * inode to fix it.)
+ *
+ * Note that pass 1B will be invoked if there are any duplicate blocks
+ * found.
+ */
+
+
+static int process_block(ext2_filsys fs, blk_t *blocknr,
+ e2_blkcnt_t blockcnt, blk_t ref_blk,
+ int ref_offset, void *priv_data);
+static int process_bad_block(ext2_filsys fs, blk_t *block_nr,
+ e2_blkcnt_t blockcnt, blk_t ref_blk,
+ int ref_offset, void *priv_data);
+static void check_blocks(e2fsck_t ctx, struct problem_context *pctx,
+ char *block_buf);
+static void mark_table_blocks(e2fsck_t ctx);
+static void alloc_bb_map(e2fsck_t ctx);
+static void alloc_imagic_map(e2fsck_t ctx);
+static void mark_inode_bad(e2fsck_t ctx, ino_t ino);
+static void handle_fs_bad_blocks(e2fsck_t ctx);
+static void process_inodes(e2fsck_t ctx, char *block_buf);
+static EXT2_QSORT_TYPE process_inode_cmp(const void *a, const void *b);
+static errcode_t scan_callback(ext2_filsys fs, ext2_inode_scan scan,
+ dgrp_t group, void * priv_data);
+static void adjust_extattr_refcount(e2fsck_t ctx, ext2_refcount_t refcount,
+ char *block_buf, int adjust_sign);
+/* static char *describe_illegal_block(ext2_filsys fs, blk_t block); */
+
+static void e2fsck_write_inode_full(e2fsck_t ctx, unsigned long ino,
+ struct ext2_inode * inode, int bufsize,
+ const char *proc);
+
+struct process_block_struct_1 {
+ ext2_ino_t ino;
+ unsigned is_dir:1, is_reg:1, clear:1, suppress:1,
+ fragmented:1, compressed:1, bbcheck:1;
+ blk_t num_blocks;
+ blk_t max_blocks;
+ e2_blkcnt_t last_block;
+ int num_illegal_blocks;
+ blk_t previous_block;
+ struct ext2_inode *inode;
+ struct problem_context *pctx;
+ ext2fs_block_bitmap fs_meta_blocks;
+ e2fsck_t ctx;
+};
+
+struct process_inode_block {
+ ext2_ino_t ino;
+ struct ext2_inode inode;
+};
+
+struct scan_callback_struct {
+ e2fsck_t ctx;
+ char *block_buf;
+};
+
+/*
+ * For the inodes to process list.
+ */
+static struct process_inode_block *inodes_to_process;
+static int process_inode_count;
+
+static __u64 ext2_max_sizes[EXT2_MAX_BLOCK_LOG_SIZE -
+ EXT2_MIN_BLOCK_LOG_SIZE + 1];
+
+/*
+ * Free all memory allocated by pass1 in preparation for restarting
+ * things.
+ */
+static void unwind_pass1(ext2_filsys fs EXT2FS_ATTR((unused)))
+{
+ ext2fs_free_mem(&inodes_to_process);
+ inodes_to_process = 0;
+}
+
+/*
+ * Check to make sure a device inode is real. Returns 1 if the device
+ * checks out, 0 if not.
+ *
+ * Note: this routine is now also used to check FIFO's and Sockets,
+ * since they have the same requirement; the i_block fields should be
+ * zero.
+ */
+int e2fsck_pass1_check_device_inode(ext2_filsys fs, struct ext2_inode *inode)
+{
+ int i;
+
+ /*
+ * If i_blocks is non-zero, or the index flag is set, then
+ * this is a bogus device/fifo/socket
+ */
+ if ((ext2fs_inode_data_blocks(fs, inode) != 0) ||
+ (inode->i_flags & EXT2_INDEX_FL))
+ return 0;
+
+ /*
+ * We should be able to do the test below all the time, but
+ * because the kernel doesn't forcibly clear the device
+ * inode's additional i_block fields, there are some rare
+ * occasions when a legitimate device inode will have non-zero
+ * additional i_block fields. So for now, we only complain
+ * when the immutable flag is set, which should never happen
+ * for devices. (And that's when the problem is caused, since
+ * you can't set or clear immutable flags for devices.) Once
+ * the kernel has been fixed we can change this...
+ */
+ if (inode->i_flags & (EXT2_IMMUTABLE_FL | EXT2_APPEND_FL)) {
+ for (i=4; i < EXT2_N_BLOCKS; i++)
+ if (inode->i_block[i])
+ return 0;
+ }
+ return 1;
+}
+
+/*
+ * Check to make sure a symlink inode is real. Returns 1 if the symlink
+ * checks out, 0 if not.
+ */
+int e2fsck_pass1_check_symlink(ext2_filsys fs, struct ext2_inode *inode,
+ char *buf)
+{
+ unsigned int len;
+ int i;
+ blk_t blocks;
+
+ if ((inode->i_size_high || inode->i_size == 0) ||
+ (inode->i_flags & EXT2_INDEX_FL))
+ return 0;
+
+ blocks = ext2fs_inode_data_blocks(fs, inode);
+ if (blocks) {
+ if ((inode->i_size >= fs->blocksize) ||
+ (blocks != fs->blocksize >> 9) ||
+ (inode->i_block[0] < fs->super->s_first_data_block) ||
+ (inode->i_block[0] >= fs->super->s_blocks_count))
+ return 0;
+
+ for (i = 1; i < EXT2_N_BLOCKS; i++)
+ if (inode->i_block[i])
+ return 0;
+
+ if (io_channel_read_blk(fs->io, inode->i_block[0], 1, buf))
+ return 0;
+
+ len = strnlen(buf, fs->blocksize);
+ if (len == fs->blocksize)
+ return 0;
+ } else {
+ if (inode->i_size >= sizeof(inode->i_block))
+ return 0;
+
+ len = strnlen((char *)inode->i_block, sizeof(inode->i_block));
+ if (len == sizeof(inode->i_block))
+ return 0;
+ }
+ if (len != inode->i_size)
+ return 0;
+ return 1;
+}
+
+/*
+ * If the immutable (or append-only) flag is set on the inode, offer
+ * to clear it.
+ */
+#define BAD_SPECIAL_FLAGS (EXT2_IMMUTABLE_FL | EXT2_APPEND_FL)
+static void check_immutable(e2fsck_t ctx, struct problem_context *pctx)
+{
+ if (!(pctx->inode->i_flags & BAD_SPECIAL_FLAGS))
+ return;
+
+ if (!fix_problem(ctx, PR_1_SET_IMMUTABLE, pctx))
+ return;
+
+ pctx->inode->i_flags &= ~BAD_SPECIAL_FLAGS;
+ e2fsck_write_inode(ctx, pctx->ino, pctx->inode, "pass1");
+}
+
+/*
+ * If device, fifo or socket, check size is zero -- if not offer to
+ * clear it
+ */
+static void check_size(e2fsck_t ctx, struct problem_context *pctx)
+{
+ struct ext2_inode *inode = pctx->inode;
+
+ if ((inode->i_size == 0) && (inode->i_size_high == 0))
+ return;
+
+ if (!fix_problem(ctx, PR_1_SET_NONZSIZE, pctx))
+ return;
+
+ inode->i_size = 0;
+ inode->i_size_high = 0;
+ e2fsck_write_inode(ctx, pctx->ino, pctx->inode, "pass1");
+}
+
+static void check_ea_in_inode(e2fsck_t ctx, struct problem_context *pctx)
+{
+ struct ext2_super_block *sb = ctx->fs->super;
+ struct ext2_inode_large *inode;
+ struct ext2_ext_attr_entry *entry;
+ char *start, *end;
+ int storage_size, remain, offs;
+ int problem = 0;
+
+ inode = (struct ext2_inode_large *) pctx->inode;
+ storage_size = EXT2_INODE_SIZE(ctx->fs->super) - EXT2_GOOD_OLD_INODE_SIZE -
+ inode->i_extra_isize;
+ start = ((char *) inode) + EXT2_GOOD_OLD_INODE_SIZE +
+ inode->i_extra_isize + sizeof(__u32);
+ end = (char *) inode + EXT2_INODE_SIZE(ctx->fs->super);
+ entry = (struct ext2_ext_attr_entry *) start;
+
+ /* scan all entry's headers first */
+
+ /* take finish entry 0UL into account */
+ remain = storage_size - sizeof(__u32);
+ offs = end - start;
+
+ while (!EXT2_EXT_IS_LAST_ENTRY(entry)) {
+
+ /* header eats this space */
+ remain -= sizeof(struct ext2_ext_attr_entry);
+
+ /* is attribute name valid? */
+ if (EXT2_EXT_ATTR_SIZE(entry->e_name_len) > remain) {
+ pctx->num = entry->e_name_len;
+ problem = PR_1_ATTR_NAME_LEN;
+ goto fix;
+ }
+
+ /* attribute len eats this space */
+ remain -= EXT2_EXT_ATTR_SIZE(entry->e_name_len);
+
+ /* check value size */
+ if (entry->e_value_size == 0 || entry->e_value_size > remain) {
+ pctx->num = entry->e_value_size;
+ problem = PR_1_ATTR_VALUE_SIZE;
+ goto fix;
+ }
+
+ /* check value placement */
+ if (entry->e_value_offs +
+ EXT2_XATTR_SIZE(entry->e_value_size) != offs) {
+ printf("(entry->e_value_offs + entry->e_value_size: %d, offs: %d)\n", entry->e_value_offs + entry->e_value_size, offs);
+ pctx->num = entry->e_value_offs;
+ problem = PR_1_ATTR_VALUE_OFFSET;
+ goto fix;
+ }
+
+ /* e_value_block must be 0 in inode's ea */
+ if (entry->e_value_block != 0) {
+ pctx->num = entry->e_value_block;
+ problem = PR_1_ATTR_VALUE_BLOCK;
+ goto fix;
+ }
+
+ /* e_hash must be 0 in inode's ea */
+ if (entry->e_hash != 0) {
+ pctx->num = entry->e_hash;
+ problem = PR_1_ATTR_HASH;
+ goto fix;
+ }
+
+ remain -= entry->e_value_size;
+ offs -= EXT2_XATTR_SIZE(entry->e_value_size);
+
+ entry = EXT2_EXT_ATTR_NEXT(entry);
+ }
+fix:
+ /*
+ * it seems like a corruption. it's very unlikely we could repair
+ * EA(s) in automatic fashion -bzzz
+ */
+#if 0
+ problem = PR_1_ATTR_HASH;
+#endif
+ if (problem == 0 || !fix_problem(ctx, problem, pctx))
+ return;
+
+ /* simple remove all possible EA(s) */
+ *((__u32 *)start) = 0UL;
+ e2fsck_write_inode_full(ctx, pctx->ino, (struct ext2_inode *)inode,
+ EXT2_INODE_SIZE(sb), "pass1");
+}
+
+static void check_inode_extra_space(e2fsck_t ctx, struct problem_context *pctx)
+{
+ struct ext2_super_block *sb = ctx->fs->super;
+ struct ext2_inode_large *inode;
+ __u32 *eamagic;
+ int min, max;
+
+ inode = (struct ext2_inode_large *) pctx->inode;
+ if (EXT2_INODE_SIZE(sb) == EXT2_GOOD_OLD_INODE_SIZE) {
+ /* this isn't large inode. so, nothing to check */
+ return;
+ }
+
+#if 0
+ printf("inode #%u, i_extra_size %d\n", pctx->ino,
+ inode->i_extra_isize);
+#endif
+ /* i_extra_isize must cover i_extra_isize + i_pad1 at least */
+ min = sizeof(inode->i_extra_isize) + sizeof(inode->i_pad1);
+ max = EXT2_INODE_SIZE(sb) - EXT2_GOOD_OLD_INODE_SIZE;
+ /*
+ * For now we will allow i_extra_isize to be 0, but really
+ * implementations should never allow i_extra_isize to be 0
+ */
+ if (inode->i_extra_isize &&
+ (inode->i_extra_isize < min || inode->i_extra_isize > max)) {
+ if (!fix_problem(ctx, PR_1_EXTRA_ISIZE, pctx))
+ return;
+ inode->i_extra_isize = min;
+ e2fsck_write_inode_full(ctx, pctx->ino, pctx->inode,
+ EXT2_INODE_SIZE(sb), "pass1");
+ return;
+ }
+
+ eamagic = (__u32 *) (((char *) inode) + EXT2_GOOD_OLD_INODE_SIZE +
+ inode->i_extra_isize);
+ if (*eamagic == EXT2_EXT_ATTR_MAGIC) {
+ /* it seems inode has an extended attribute(s) in body */
+ check_ea_in_inode(ctx, pctx);
+ }
+}
+
+void e2fsck_pass1(e2fsck_t ctx)
+{
+ int i;
+ __u64 max_sizes;
+ ext2_filsys fs = ctx->fs;
+ ext2_ino_t ino;
+ struct ext2_inode *inode;
+ ext2_inode_scan scan;
+ char *block_buf;
+#ifdef RESOURCE_TRACK
+ struct resource_track rtrack;
+#endif
+ unsigned char frag, fsize;
+ struct problem_context pctx;
+ struct scan_callback_struct scan_struct;
+ struct ext2_super_block *sb = ctx->fs->super;
+ int imagic_fs;
+ int busted_fs_time = 0;
+ int inode_size;
+
+#ifdef RESOURCE_TRACK
+ init_resource_track(&rtrack);
+#endif
+ clear_problem_context(&pctx);
+
+ if (!(ctx->options & E2F_OPT_PREEN))
+ fix_problem(ctx, PR_1_PASS_HEADER, &pctx);
+
+ if ((fs->super->s_feature_compat & EXT2_FEATURE_COMPAT_DIR_INDEX) &&
+ !(ctx->options & E2F_OPT_NO)) {
+ if (ext2fs_u32_list_create(&ctx->dirs_to_hash, 50))
+ ctx->dirs_to_hash = 0;
+ }
+
+#ifdef MTRACE
+ mtrace_print("Pass 1");
+#endif
+
+#define EXT2_BPP(bits) (1ULL << ((bits) - 2))
+
+ for (i = EXT2_MIN_BLOCK_LOG_SIZE; i <= EXT2_MAX_BLOCK_LOG_SIZE; i++) {
+ max_sizes = EXT2_NDIR_BLOCKS + EXT2_BPP(i);
+ max_sizes = max_sizes + EXT2_BPP(i) * EXT2_BPP(i);
+ max_sizes = max_sizes + EXT2_BPP(i) * EXT2_BPP(i) * EXT2_BPP(i);
+ max_sizes = (max_sizes * (1UL << i)) - 1;
+ ext2_max_sizes[i - EXT2_MIN_BLOCK_LOG_SIZE] = max_sizes;
+ }
+#undef EXT2_BPP
+
+ imagic_fs = (sb->s_feature_compat & EXT2_FEATURE_COMPAT_IMAGIC_INODES);
+
+ /*
+ * Allocate bitmaps structures
+ */
+ pctx.errcode = ext2fs_allocate_inode_bitmap(fs, _("in-use inode map"),
+ &ctx->inode_used_map);
+ if (pctx.errcode) {
+ pctx.num = 1;
+ fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
+ ctx->flags |= E2F_FLAG_ABORT;
+ return;
+ }
+ pctx.errcode = ext2fs_allocate_inode_bitmap(fs,
+ _("directory inode map"), &ctx->inode_dir_map);
+ if (pctx.errcode) {
+ pctx.num = 2;
+ fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
+ ctx->flags |= E2F_FLAG_ABORT;
+ return;
+ }
+ pctx.errcode = ext2fs_allocate_inode_bitmap(fs,
+ _("regular file inode map"), &ctx->inode_reg_map);
+ if (pctx.errcode) {
+ pctx.num = 6;
+ fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
+ ctx->flags |= E2F_FLAG_ABORT;
+ return;
+ }
+ pctx.errcode = ext2fs_allocate_block_bitmap(fs, _("in-use block map"),
+ &ctx->block_found_map);
+ if (pctx.errcode) {
+ pctx.num = 1;
+ fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, &pctx);
+ ctx->flags |= E2F_FLAG_ABORT;
+ return;
+ }
+ pctx.errcode = ext2fs_create_icount2(fs, 0, 0, 0,
+ &ctx->inode_link_info);
+ if (pctx.errcode) {
+ fix_problem(ctx, PR_1_ALLOCATE_ICOUNT, &pctx);
+ ctx->flags |= E2F_FLAG_ABORT;
+ return;
+ }
+ inode_size = EXT2_INODE_SIZE(fs->super);
+ inode = (struct ext2_inode *)
+ e2fsck_allocate_memory(ctx, inode_size, "scratch inode");
+
+ inodes_to_process = (struct process_inode_block *)
+ e2fsck_allocate_memory(ctx,
+ (ctx->process_inode_size *
+ sizeof(struct process_inode_block)),
+ "array of inodes to process");
+ process_inode_count = 0;
+
+ pctx.errcode = ext2fs_init_dblist(fs, 0);
+ if (pctx.errcode) {
+ fix_problem(ctx, PR_1_ALLOCATE_DBCOUNT, &pctx);
+ ctx->flags |= E2F_FLAG_ABORT;
+ return;
+ }
+
+ /*
+ * If the last orphan field is set, clear it, since the pass1
+ * processing will automatically find and clear the orphans.
+ * In the future, we may want to try using the last_orphan
+ * linked list ourselves, but for now, we clear it so that the
+ * ext3 mount code won't get confused.
+ */
+ if (!(ctx->options & E2F_OPT_READONLY)) {
+ if (fs->super->s_last_orphan) {
+ fs->super->s_last_orphan = 0;
+ ext2fs_mark_super_dirty(fs);
+ }
+ }
+
+ mark_table_blocks(ctx);
+ block_buf = (char *) e2fsck_allocate_memory(ctx, fs->blocksize * 3,
+ "block interate buffer");
+ e2fsck_use_inode_shortcuts(ctx, 1);
+ ehandler_operation(_("doing inode scan"));
+ pctx.errcode = ext2fs_open_inode_scan(fs, ctx->inode_buffer_blocks,
+ &scan);
+ if (pctx.errcode) {
+ fix_problem(ctx, PR_1_ISCAN_ERROR, &pctx);
+ ctx->flags |= E2F_FLAG_ABORT;
+ return;
+ }
+ ext2fs_inode_scan_flags(scan, EXT2_SF_SKIP_MISSING_ITABLE, 0);
+ ctx->stashed_inode = inode;
+ scan_struct.ctx = ctx;
+ scan_struct.block_buf = block_buf;
+ ext2fs_set_inode_callback(scan, scan_callback, &scan_struct);
+ if (ctx->progress)
+ if ((ctx->progress)(ctx, 1, 0, ctx->fs->group_desc_count))
+ return;
+ if (fs->super->s_wtime < fs->super->s_inodes_count)
+ busted_fs_time = 1;
+
+ while (1) {
+ pctx.errcode = ext2fs_get_next_inode_full(scan, &ino,
+ inode, inode_size);
+ if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
+ return;
+ if (pctx.errcode == EXT2_ET_BAD_BLOCK_IN_INODE_TABLE) {
+ if (!ctx->inode_bb_map)
+ alloc_bb_map(ctx);
+ ext2fs_mark_inode_bitmap(ctx->inode_bb_map, ino);
+ ext2fs_mark_inode_bitmap(ctx->inode_used_map, ino);
+ continue;
+ }
+ if (pctx.errcode) {
+ fix_problem(ctx, PR_1_ISCAN_ERROR, &pctx);
+ ctx->flags |= E2F_FLAG_ABORT;
+ return;
+ }
+ if (!ino)
+ break;
+ pctx.ino = ino;
+ pctx.inode = inode;
+ ctx->stashed_ino = ino;
+ if (inode->i_links_count) {
+ pctx.errcode = ext2fs_icount_store(ctx->inode_link_info,
+ ino, inode->i_links_count);
+ if (pctx.errcode) {
+ pctx.num = inode->i_links_count;
+ fix_problem(ctx, PR_1_ICOUNT_STORE, &pctx);
+ ctx->flags |= E2F_FLAG_ABORT;
+ return;
+ }
+ }
+ if (ino == EXT2_BAD_INO) {
+ struct process_block_struct_1 pb;
+
+ pctx.errcode = ext2fs_copy_bitmap(ctx->block_found_map,
+ &pb.fs_meta_blocks);
+ if (pctx.errcode) {
+ pctx.num = 4;
+ fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, &pctx);
+ ctx->flags |= E2F_FLAG_ABORT;
+ return;
+ }
+ pb.ino = EXT2_BAD_INO;
+ pb.num_blocks = pb.last_block = 0;
+ pb.num_illegal_blocks = 0;
+ pb.suppress = 0; pb.clear = 0; pb.is_dir = 0;
+ pb.is_reg = 0; pb.fragmented = 0; pb.bbcheck = 0;
+ pb.inode = inode;
+ pb.pctx = &pctx;
+ pb.ctx = ctx;
+ pctx.errcode = ext2fs_block_iterate2(fs, ino, 0,
+ block_buf, process_bad_block, &pb);
+ ext2fs_free_block_bitmap(pb.fs_meta_blocks);
+ if (pctx.errcode) {
+ fix_problem(ctx, PR_1_BLOCK_ITERATE, &pctx);
+ ctx->flags |= E2F_FLAG_ABORT;
+ return;
+ }
+ if (pb.bbcheck)
+ if (!fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK_PROMPT, &pctx)) {
+ ctx->flags |= E2F_FLAG_ABORT;
+ return;
+ }
+ ext2fs_mark_inode_bitmap(ctx->inode_used_map, ino);
+ clear_problem_context(&pctx);
+ continue;
+ } else if (ino == EXT2_ROOT_INO) {
+ /*
+ * Make sure the root inode is a directory; if
+ * not, offer to clear it. It will be
+ * regnerated in pass #3.
+ */
+ if (!LINUX_S_ISDIR(inode->i_mode)) {
+ if (fix_problem(ctx, PR_1_ROOT_NO_DIR, &pctx)) {
+ inode->i_dtime = time(0);
+ inode->i_links_count = 0;
+ ext2fs_icount_store(ctx->inode_link_info,
+ ino, 0);
+ e2fsck_write_inode(ctx, ino, inode,
+ "pass1");
+ }
+
+ }
+ /*
+ * If dtime is set, offer to clear it. mke2fs
+ * version 0.2b created filesystems with the
+ * dtime field set for the root and lost+found
+ * directories. We won't worry about
+ * /lost+found, since that can be regenerated
+ * easily. But we will fix the root directory
+ * as a special case.
+ */
+ if (inode->i_dtime && inode->i_links_count) {
+ if (fix_problem(ctx, PR_1_ROOT_DTIME, &pctx)) {
+ inode->i_dtime = 0;
+ e2fsck_write_inode(ctx, ino, inode,
+ "pass1");
+ }
+ }
+ } else if (ino == EXT2_JOURNAL_INO) {
+ ext2fs_mark_inode_bitmap(ctx->inode_used_map, ino);
+ if (fs->super->s_journal_inum == EXT2_JOURNAL_INO) {
+ if (!LINUX_S_ISREG(inode->i_mode) &&
+ fix_problem(ctx, PR_1_JOURNAL_BAD_MODE,
+ &pctx)) {
+ inode->i_mode = LINUX_S_IFREG;
+ e2fsck_write_inode(ctx, ino, inode,
+ "pass1");
+ }
+ check_blocks(ctx, &pctx, block_buf);
+ continue;
+ }
+ if ((inode->i_links_count || inode->i_blocks ||
+ inode->i_blocks || inode->i_block[0]) &&
+ fix_problem(ctx, PR_1_JOURNAL_INODE_NOT_CLEAR,
+ &pctx)) {
+ memset(inode, 0, inode_size);
+ ext2fs_icount_store(ctx->inode_link_info,
+ ino, 0);
+ e2fsck_write_inode_full(ctx, ino, inode,
+ inode_size, "pass1");
+ }
+ } else if (ino < EXT2_FIRST_INODE(fs->super)) {
+ int problem = 0;
+
+ ext2fs_mark_inode_bitmap(ctx->inode_used_map, ino);
+ if (ino == EXT2_BOOT_LOADER_INO) {
+ if (LINUX_S_ISDIR(inode->i_mode))
+ problem = PR_1_RESERVED_BAD_MODE;
+ } else if (ino == EXT2_RESIZE_INO) {
+ if (inode->i_mode &&
+ !LINUX_S_ISREG(inode->i_mode))
+ problem = PR_1_RESERVED_BAD_MODE;
+ } else {
+ if (inode->i_mode != 0)
+ problem = PR_1_RESERVED_BAD_MODE;
+ }
+ if (problem) {
+ if (fix_problem(ctx, problem, &pctx)) {
+ inode->i_mode = 0;
+ e2fsck_write_inode(ctx, ino, inode,
+ "pass1");
+ }
+ }
+ check_blocks(ctx, &pctx, block_buf);
+ continue;
+ }
+ /*
+ * Check for inodes who might have been part of the
+ * orphaned list linked list. They should have gotten
+ * dealt with by now, unless the list had somehow been
+ * corrupted.
+ *
+ * FIXME: In the future, inodes which are still in use
+ * (and which are therefore) pending truncation should
+ * be handled specially. Right now we just clear the
+ * dtime field, and the normal e2fsck handling of
+ * inodes where i_size and the inode blocks are
+ * inconsistent is to fix i_size, instead of releasing
+ * the extra blocks. This won't catch the inodes that
+ * was at the end of the orphan list, but it's better
+ * than nothing. The right answer is that there
+ * shouldn't be any bugs in the orphan list handling. :-)
+ */
+ if (inode->i_dtime && !busted_fs_time &&
+ inode->i_dtime < ctx->fs->super->s_inodes_count) {
+ if (fix_problem(ctx, PR_1_LOW_DTIME, &pctx)) {
+ inode->i_dtime = inode->i_links_count ?
+ 0 : time(0);
+ e2fsck_write_inode(ctx, ino, inode,
+ "pass1");
+ }
+ }
+
+ /*
+ * This code assumes that deleted inodes have
+ * i_links_count set to 0.
+ */
+ if (!inode->i_links_count) {
+ if (!inode->i_dtime && inode->i_mode) {
+ if (fix_problem(ctx,
+ PR_1_ZERO_DTIME, &pctx)) {
+ inode->i_dtime = time(0);
+ e2fsck_write_inode(ctx, ino, inode,
+ "pass1");
+ }
+ }
+ continue;
+ }
+ /*
+ * n.b. 0.3c ext2fs code didn't clear i_links_count for
+ * deleted files. Oops.
+ *
+ * Since all new ext2 implementations get this right,
+ * we now assume that the case of non-zero
+ * i_links_count and non-zero dtime means that we
+ * should keep the file, not delete it.
+ *
+ */
+ if (inode->i_dtime) {
+ if (fix_problem(ctx, PR_1_SET_DTIME, &pctx)) {
+ inode->i_dtime = 0;
+ e2fsck_write_inode(ctx, ino, inode, "pass1");
+ }
+ }
+
+ ext2fs_mark_inode_bitmap(ctx->inode_used_map, ino);
+ switch (fs->super->s_creator_os) {
+ case EXT2_OS_LINUX:
+ frag = inode->osd2.linux2.l_i_frag;
+ fsize = inode->osd2.linux2.l_i_fsize;
+ break;
+ case EXT2_OS_HURD:
+ frag = inode->osd2.hurd2.h_i_frag;
+ fsize = inode->osd2.hurd2.h_i_fsize;
+ break;
+ case EXT2_OS_MASIX:
+ frag = inode->osd2.masix2.m_i_frag;
+ fsize = inode->osd2.masix2.m_i_fsize;
+ break;
+ default:
+ frag = fsize = 0;
+ }
+
+ if (inode->i_faddr || frag || fsize ||
+ (LINUX_S_ISDIR(inode->i_mode) && inode->i_dir_acl))
+ mark_inode_bad(ctx, ino);
+ if (inode->i_flags & EXT2_IMAGIC_FL) {
+ if (imagic_fs) {
+ if (!ctx->inode_imagic_map)
+ alloc_imagic_map(ctx);
+ ext2fs_mark_inode_bitmap(ctx->inode_imagic_map,
+ ino);
+ } else {
+ if (fix_problem(ctx, PR_1_SET_IMAGIC, &pctx)) {
+ inode->i_flags &= ~EXT2_IMAGIC_FL;
+ e2fsck_write_inode(ctx, ino,
+ inode, "pass1");
+ }
+ }
+ }
+
+ check_inode_extra_space(ctx, &pctx);
+
+ if (LINUX_S_ISDIR(inode->i_mode)) {
+ ext2fs_mark_inode_bitmap(ctx->inode_dir_map, ino);
+ e2fsck_add_dir_info(ctx, ino, 0);
+ ctx->fs_directory_count++;
+ } else if (LINUX_S_ISREG (inode->i_mode)) {
+ ext2fs_mark_inode_bitmap(ctx->inode_reg_map, ino);
+ ctx->fs_regular_count++;
+ } else if (LINUX_S_ISCHR (inode->i_mode) &&
+ e2fsck_pass1_check_device_inode(fs, inode)) {
+ check_immutable(ctx, &pctx);
+ check_size(ctx, &pctx);
+ ctx->fs_chardev_count++;
+ } else if (LINUX_S_ISBLK (inode->i_mode) &&
+ e2fsck_pass1_check_device_inode(fs, inode)) {
+ check_immutable(ctx, &pctx);
+ check_size(ctx, &pctx);
+ ctx->fs_blockdev_count++;
+ } else if (LINUX_S_ISLNK (inode->i_mode) &&
+ e2fsck_pass1_check_symlink(fs, inode, block_buf)) {
+ check_immutable(ctx, &pctx);
+ ctx->fs_symlinks_count++;
+ if (ext2fs_inode_data_blocks(fs, inode) == 0) {
+ ctx->fs_fast_symlinks_count++;
+ check_blocks(ctx, &pctx, block_buf);
+ continue;
+ }
+ }
+ else if (LINUX_S_ISFIFO (inode->i_mode) &&
+ e2fsck_pass1_check_device_inode(fs, inode)) {
+ check_immutable(ctx, &pctx);
+ check_size(ctx, &pctx);
+ ctx->fs_fifo_count++;
+ } else if ((LINUX_S_ISSOCK (inode->i_mode)) &&
+ e2fsck_pass1_check_device_inode(fs, inode)) {
+ check_immutable(ctx, &pctx);
+ check_size(ctx, &pctx);
+ ctx->fs_sockets_count++;
+ } else
+ mark_inode_bad(ctx, ino);
+ if (inode->i_block[EXT2_IND_BLOCK])
+ ctx->fs_ind_count++;
+ if (inode->i_block[EXT2_DIND_BLOCK])
+ ctx->fs_dind_count++;
+ if (inode->i_block[EXT2_TIND_BLOCK])
+ ctx->fs_tind_count++;
+ if (inode->i_block[EXT2_IND_BLOCK] ||
+ inode->i_block[EXT2_DIND_BLOCK] ||
+ inode->i_block[EXT2_TIND_BLOCK] ||
+ inode->i_file_acl) {
+ inodes_to_process[process_inode_count].ino = ino;
+ inodes_to_process[process_inode_count].inode = *inode;
+ process_inode_count++;
+ } else
+ check_blocks(ctx, &pctx, block_buf);
+
+ if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
+ return;
+
+ if (process_inode_count >= ctx->process_inode_size) {
+ process_inodes(ctx, block_buf);
+
+ if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
+ return;
+ }
+ }
+ process_inodes(ctx, block_buf);
+ ext2fs_close_inode_scan(scan);
+ ehandler_operation(0);
+
+ /*
+ * If any extended attribute blocks' reference counts need to
+ * be adjusted, either up (ctx->refcount_extra), or down
+ * (ctx->refcount), then fix them.
+ */
+ if (ctx->refcount) {
+ adjust_extattr_refcount(ctx, ctx->refcount, block_buf, -1);
+ ea_refcount_free(ctx->refcount);
+ ctx->refcount = 0;
+ }
+ if (ctx->refcount_extra) {
+ adjust_extattr_refcount(ctx, ctx->refcount_extra,
+ block_buf, +1);
+ ea_refcount_free(ctx->refcount_extra);
+ ctx->refcount_extra = 0;
+ }
+
+ if (ctx->invalid_bitmaps)
+ handle_fs_bad_blocks(ctx);
+
+ /* We don't need the block_ea_map any more */
+ if (ctx->block_ea_map) {
+ ext2fs_free_block_bitmap(ctx->block_ea_map);
+ ctx->block_ea_map = 0;
+ }
+
+ if (ctx->flags & E2F_FLAG_RESIZE_INODE) {
+ ext2fs_block_bitmap save_bmap;
+
+ save_bmap = fs->block_map;
+ fs->block_map = ctx->block_found_map;
+ clear_problem_context(&pctx);
+ pctx.errcode = ext2fs_create_resize_inode(fs);
+ if (pctx.errcode) {
+ fix_problem(ctx, PR_1_RESIZE_INODE_CREATE, &pctx);
+ /* Should never get here */
+ ctx->flags |= E2F_FLAG_ABORT;
+ return;
+ }
+ fs->block_map = save_bmap;
+ ctx->flags &= ~E2F_FLAG_RESIZE_INODE;
+ }
+
+ if (ctx->flags & E2F_FLAG_RESTART) {
+ /*
+ * Only the master copy of the superblock and block
+ * group descriptors are going to be written during a
+ * restart, so set the superblock to be used to be the
+ * master superblock.
+ */
+ ctx->use_superblock = 0;
+ unwind_pass1(fs);
+ goto endit;
+ }
+
+ if (ctx->block_dup_map) {
+ if (ctx->options & E2F_OPT_PREEN) {
+ clear_problem_context(&pctx);
+ fix_problem(ctx, PR_1_DUP_BLOCKS_PREENSTOP, &pctx);
+ }
+ e2fsck_pass1_dupblocks(ctx, block_buf);
+ }
+ ext2fs_free_mem(&inodes_to_process);
+endit:
+ e2fsck_use_inode_shortcuts(ctx, 0);
+
+ ext2fs_free_mem(&block_buf);
+ ext2fs_free_mem(&inode);
+
+#ifdef RESOURCE_TRACK
+ if (ctx->options & E2F_OPT_TIME2) {
+ e2fsck_clear_progbar(ctx);
+ print_resource_track(_("Pass 1"), &rtrack);
+ }
+#endif
+}
+
+/*
+ * When the inode_scan routines call this callback at the end of the
+ * glock group, call process_inodes.
+ */
+static errcode_t scan_callback(ext2_filsys fs,
+ ext2_inode_scan scan EXT2FS_ATTR((unused)),
+ dgrp_t group, void * priv_data)
+{
+ struct scan_callback_struct *scan_struct;
+ e2fsck_t ctx;
+
+ scan_struct = (struct scan_callback_struct *) priv_data;
+ ctx = scan_struct->ctx;
+
+ process_inodes((e2fsck_t) fs->priv_data, scan_struct->block_buf);
+
+ if (ctx->progress)
+ if ((ctx->progress)(ctx, 1, group+1,
+ ctx->fs->group_desc_count))
+ return EXT2_ET_CANCEL_REQUESTED;
+
+ return 0;
+}
+
+/*
+ * Process the inodes in the "inodes to process" list.
+ */
+static void process_inodes(e2fsck_t ctx, char *block_buf)
+{
+ int i;
+ struct ext2_inode *old_stashed_inode;
+ ext2_ino_t old_stashed_ino;
+ const char *old_operation;
+ char buf[80];
+ struct problem_context pctx;
+
+#if 0
+ printf("begin process_inodes: ");
+#endif
+ if (process_inode_count == 0)
+ return;
+ old_operation = ehandler_operation(0);
+ old_stashed_inode = ctx->stashed_inode;
+ old_stashed_ino = ctx->stashed_ino;
+ qsort(inodes_to_process, process_inode_count,
+ sizeof(struct process_inode_block), process_inode_cmp);
+ clear_problem_context(&pctx);
+ for (i=0; i < process_inode_count; i++) {
+ pctx.inode = ctx->stashed_inode = &inodes_to_process[i].inode;
+ pctx.ino = ctx->stashed_ino = inodes_to_process[i].ino;
+
+#if 0
+ printf("%u ", pctx.ino);
+#endif
+ sprintf(buf, _("reading indirect blocks of inode %u"),
+ pctx.ino);
+ ehandler_operation(buf);
+ check_blocks(ctx, &pctx, block_buf);
+ if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
+ break;
+ }
+ ctx->stashed_inode = old_stashed_inode;
+ ctx->stashed_ino = old_stashed_ino;
+ process_inode_count = 0;
+#if 0
+ printf("end process inodes\n");
+#endif
+ ehandler_operation(old_operation);
+}
+
+static EXT2_QSORT_TYPE process_inode_cmp(const void *a, const void *b)
+{
+ const struct process_inode_block *ib_a =
+ (const struct process_inode_block *) a;
+ const struct process_inode_block *ib_b =
+ (const struct process_inode_block *) b;
+ int ret;
+
+ ret = (ib_a->inode.i_block[EXT2_IND_BLOCK] -
+ ib_b->inode.i_block[EXT2_IND_BLOCK]);
+ if (ret == 0)
+ ret = ib_a->inode.i_file_acl - ib_b->inode.i_file_acl;
+ return ret;
+}
+
+/*
+ * Mark an inode as being bad in some what
+ */
+static void mark_inode_bad(e2fsck_t ctx, ino_t ino)
+{
+ struct problem_context pctx;
+
+ if (!ctx->inode_bad_map) {
+ clear_problem_context(&pctx);
+
+ pctx.errcode = ext2fs_allocate_inode_bitmap(ctx->fs,
+ _("bad inode map"), &ctx->inode_bad_map);
+ if (pctx.errcode) {
+ pctx.num = 3;
+ fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
+ /* Should never get here */
+ ctx->flags |= E2F_FLAG_ABORT;
+ return;
+ }
+ }
+ ext2fs_mark_inode_bitmap(ctx->inode_bad_map, ino);
+}
+
+
+/*
+ * This procedure will allocate the inode "bb" (badblock) map table
+ */
+static void alloc_bb_map(e2fsck_t ctx)
+{
+ struct problem_context pctx;
+
+ clear_problem_context(&pctx);
+ pctx.errcode = ext2fs_allocate_inode_bitmap(ctx->fs,
+ _("inode in bad block map"),
+ &ctx->inode_bb_map);
+ if (pctx.errcode) {
+ pctx.num = 4;
+ fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
+ /* Should never get here */
+ ctx->flags |= E2F_FLAG_ABORT;
+ return;
+ }
+}
+
+/*
+ * This procedure will allocate the inode imagic table
+ */
+static void alloc_imagic_map(e2fsck_t ctx)
+{
+ struct problem_context pctx;
+
+ clear_problem_context(&pctx);
+ pctx.errcode = ext2fs_allocate_inode_bitmap(ctx->fs,
+ _("imagic inode map"),
+ &ctx->inode_imagic_map);
+ if (pctx.errcode) {
+ pctx.num = 5;
+ fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
+ /* Should never get here */
+ ctx->flags |= E2F_FLAG_ABORT;
+ return;
+ }
+}
+
+/*
+ * Marks a block as in use, setting the dup_map if it's been set
+ * already. Called by process_block and process_bad_block.
+ *
+ * WARNING: Assumes checks have already been done to make sure block
+ * is valid. This is true in both process_block and process_bad_block.
+ */
+static _INLINE_ void mark_block_used(e2fsck_t ctx, blk_t block)
+{
+ struct problem_context pctx;
+
+ clear_problem_context(&pctx);
+
+ if (ext2fs_fast_test_block_bitmap(ctx->block_found_map, block)) {
+ if (!ctx->block_dup_map) {
+ pctx.errcode = ext2fs_allocate_block_bitmap(ctx->fs,
+ _("multiply claimed block map"),
+ &ctx->block_dup_map);
+ if (pctx.errcode) {
+ pctx.num = 3;
+ fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR,
+ &pctx);
+ /* Should never get here */
+ ctx->flags |= E2F_FLAG_ABORT;
+ return;
+ }
+ }
+ ext2fs_fast_mark_block_bitmap(ctx->block_dup_map, block);
+ } else {
+ ext2fs_fast_mark_block_bitmap(ctx->block_found_map, block);
+ }
+}
+
+/*
+ * Adjust the extended attribute block's reference counts at the end
+ * of pass 1, either by subtracting out references for EA blocks that
+ * are still referenced in ctx->refcount, or by adding references for
+ * EA blocks that had extra references as accounted for in
+ * ctx->refcount_extra.
+ */
+static void adjust_extattr_refcount(e2fsck_t ctx, ext2_refcount_t refcount,
+ char *block_buf, int adjust_sign)
+{
+ struct ext2_ext_attr_header *header;
+ struct problem_context pctx;
+ ext2_filsys fs = ctx->fs;
+ blk_t blk;
+ __u32 should_be;
+ int count;
+
+ clear_problem_context(&pctx);
+
+ ea_refcount_intr_begin(refcount);
+ while (1) {
+ if ((blk = ea_refcount_intr_next(refcount, &count)) == 0)
+ break;
+ pctx.blk = blk;
+ pctx.errcode = ext2fs_read_ext_attr(fs, blk, block_buf);
+ if (pctx.errcode) {
+ fix_problem(ctx, PR_1_EXTATTR_READ_ABORT, &pctx);
+ return;
+ }
+ header = (struct ext2_ext_attr_header *) block_buf;
+ pctx.blkcount = header->h_refcount;
+ should_be = header->h_refcount + adjust_sign * count;
+ pctx.num = should_be;
+ if (fix_problem(ctx, PR_1_EXTATTR_REFCOUNT, &pctx)) {
+ header->h_refcount = should_be;
+ pctx.errcode = ext2fs_write_ext_attr(fs, blk,
+ block_buf);
+ if (pctx.errcode) {
+ fix_problem(ctx, PR_1_EXTATTR_WRITE, &pctx);
+ continue;
+ }
+ }
+ }
+}
+
+/*
+ * Handle processing the extended attribute blocks
+ */
+static int check_ext_attr(e2fsck_t ctx, struct problem_context *pctx,
+ char *block_buf)
+{
+ ext2_filsys fs = ctx->fs;
+ ext2_ino_t ino = pctx->ino;
+ struct ext2_inode *inode = pctx->inode;
+ blk_t blk;
+ char * end;
+ struct ext2_ext_attr_header *header;
+ struct ext2_ext_attr_entry *entry;
+ int count;
+ region_t region;
+
+ blk = inode->i_file_acl;
+ if (blk == 0)
+ return 0;
+
+ /*
+ * If the Extended attribute flag isn't set, then a non-zero
+ * file acl means that the inode is corrupted.
+ *
+ * Or if the extended attribute block is an invalid block,
+ * then the inode is also corrupted.
+ */
+ if (!(fs->super->s_feature_compat & EXT2_FEATURE_COMPAT_EXT_ATTR) ||
+ (blk < fs->super->s_first_data_block) ||
+ (blk >= fs->super->s_blocks_count)) {
+ mark_inode_bad(ctx, ino);
+ return 0;
+ }
+
+ /* If ea bitmap hasn't been allocated, create it */
+ if (!ctx->block_ea_map) {
+ pctx->errcode = ext2fs_allocate_block_bitmap(fs,
+ _("ext attr block map"),
+ &ctx->block_ea_map);
+ if (pctx->errcode) {
+ pctx->num = 2;
+ fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, pctx);
+ ctx->flags |= E2F_FLAG_ABORT;
+ return 0;
+ }
+ }
+
+ /* Create the EA refcount structure if necessary */
+ if (!ctx->refcount) {
+ pctx->errcode = ea_refcount_create(0, &ctx->refcount);
+ if (pctx->errcode) {
+ pctx->num = 1;
+ fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
+ ctx->flags |= E2F_FLAG_ABORT;
+ return 0;
+ }
+ }
+
+#if 0
+ /* Debugging text */
+ printf("Inode %u has EA block %u\n", ino, blk);
+#endif
+
+ /* Have we seen this EA block before? */
+ if (ext2fs_fast_test_block_bitmap(ctx->block_ea_map, blk)) {
+ if (ea_refcount_decrement(ctx->refcount, blk, 0) == 0)
+ return 1;
+ /* Ooops, this EA was referenced more than it stated */
+ if (!ctx->refcount_extra) {
+ pctx->errcode = ea_refcount_create(0,
+ &ctx->refcount_extra);
+ if (pctx->errcode) {
+ pctx->num = 2;
+ fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
+ ctx->flags |= E2F_FLAG_ABORT;
+ return 0;
+ }
+ }
+ ea_refcount_increment(ctx->refcount_extra, blk, 0);
+ return 1;
+ }
+
+ /*
+ * OK, we haven't seen this EA block yet. So we need to
+ * validate it
+ */
+ pctx->blk = blk;
+ pctx->errcode = ext2fs_read_ext_attr(fs, blk, block_buf);
+ if (pctx->errcode && fix_problem(ctx, PR_1_READ_EA_BLOCK, pctx))
+ goto clear_extattr;
+ header = (struct ext2_ext_attr_header *) block_buf;
+ pctx->blk = inode->i_file_acl;
+ if (((ctx->ext_attr_ver == 1) &&
+ (header->h_magic != EXT2_EXT_ATTR_MAGIC_v1)) ||
+ ((ctx->ext_attr_ver == 2) &&
+ (header->h_magic != EXT2_EXT_ATTR_MAGIC))) {
+ if (fix_problem(ctx, PR_1_BAD_EA_BLOCK, pctx))
+ goto clear_extattr;
+ }
+
+ if (header->h_blocks != 1) {
+ if (fix_problem(ctx, PR_1_EA_MULTI_BLOCK, pctx))
+ goto clear_extattr;
+ }
+
+ region = region_create(0, fs->blocksize);
+ if (!region) {
+ fix_problem(ctx, PR_1_EA_ALLOC_REGION, pctx);
+ ctx->flags |= E2F_FLAG_ABORT;
+ return 0;
+ }
+ if (region_allocate(region, 0, sizeof(struct ext2_ext_attr_header))) {
+ if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
+ goto clear_extattr;
+ }
+
+ entry = (struct ext2_ext_attr_entry *)(header+1);
+ end = block_buf + fs->blocksize;
+ while ((char *)entry < end && *(__u32 *)entry) {
+ if (region_allocate(region, (char *)entry - (char *)header,
+ EXT2_EXT_ATTR_LEN(entry->e_name_len))) {
+ if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
+ goto clear_extattr;
+ }
+ if ((ctx->ext_attr_ver == 1 &&
+ (entry->e_name_len == 0 || entry->e_name_index != 0)) ||
+ (ctx->ext_attr_ver == 2 &&
+ entry->e_name_index == 0)) {
+ if (fix_problem(ctx, PR_1_EA_BAD_NAME, pctx))
+ goto clear_extattr;
+ }
+ if (entry->e_value_block != 0) {
+ if (fix_problem(ctx, PR_1_EA_BAD_VALUE, pctx))
+ goto clear_extattr;
+ }
+ if (entry->e_value_size &&
+ region_allocate(region, entry->e_value_offs,
+ EXT2_EXT_ATTR_SIZE(entry->e_value_size))) {
+ if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
+ goto clear_extattr;
+ }
+ entry = EXT2_EXT_ATTR_NEXT(entry);
+ }
+ if (region_allocate(region, (char *)entry - (char *)header, 4)) {
+ if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
+ goto clear_extattr;
+ }
+ region_free(region);
+
+ count = header->h_refcount - 1;
+ if (count)
+ ea_refcount_store(ctx->refcount, blk, count);
+ mark_block_used(ctx, blk);
+ ext2fs_fast_mark_block_bitmap(ctx->block_ea_map, blk);
+
+ return 1;
+
+clear_extattr:
+ inode->i_file_acl = 0;
+ e2fsck_write_inode(ctx, ino, inode, "check_ext_attr");
+ return 0;
+}
+
+/* Returns 1 if bad htree, 0 if OK */
+static int handle_htree(e2fsck_t ctx, struct problem_context *pctx,
+ ext2_ino_t ino EXT2FS_ATTR((unused)),
+ struct ext2_inode *inode,
+ char *block_buf)
+{
+ struct ext2_dx_root_info *root;
+ ext2_filsys fs = ctx->fs;
+ errcode_t retval;
+ blk_t blk;
+
+ if ((!LINUX_S_ISDIR(inode->i_mode) &&
+ fix_problem(ctx, PR_1_HTREE_NODIR, pctx)) ||
+ (!(fs->super->s_feature_compat & EXT2_FEATURE_COMPAT_DIR_INDEX) &&
+ fix_problem(ctx, PR_1_HTREE_SET, pctx)))
+ return 1;
+
+ blk = inode->i_block[0];
+ if (((blk == 0) ||
+ (blk < fs->super->s_first_data_block) ||
+ (blk >= fs->super->s_blocks_count)) &&
+ fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
+ return 1;
+
+ retval = io_channel_read_blk(fs->io, blk, 1, block_buf);
+ if (retval && fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
+ return 1;
+
+ /* XXX should check that beginning matches a directory */
+ root = (struct ext2_dx_root_info *) (block_buf + 24);
+
+ if ((root->reserved_zero || root->info_length < 8) &&
+ fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
+ return 1;
+
+ pctx->num = root->hash_version;
+ if ((root->hash_version != EXT2_HASH_LEGACY) &&
+ (root->hash_version != EXT2_HASH_HALF_MD4) &&
+ (root->hash_version != EXT2_HASH_TEA) &&
+ fix_problem(ctx, PR_1_HTREE_HASHV, pctx))
+ return 1;
+
+ if ((root->unused_flags & EXT2_HASH_FLAG_INCOMPAT) &&
+ fix_problem(ctx, PR_1_HTREE_INCOMPAT, pctx))
+ return 1;
+
+ pctx->num = root->indirect_levels;
+ if ((root->indirect_levels > 1) &&
+ fix_problem(ctx, PR_1_HTREE_DEPTH, pctx))
+ return 1;
+
+ return 0;
+}
+
+/*
+ * This subroutine is called on each inode to account for all of the
+ * blocks used by that inode.
+ */
+static void check_blocks(e2fsck_t ctx, struct problem_context *pctx,
+ char *block_buf)
+{
+ ext2_filsys fs = ctx->fs;
+ struct process_block_struct_1 pb;
+ ext2_ino_t ino = pctx->ino;
+ struct ext2_inode *inode = pctx->inode;
+ int bad_size = 0;
+ int dirty_inode = 0;
+ __u64 size;
+
+ pb.ino = ino;
+ pb.num_blocks = 0;
+ pb.last_block = -1;
+ pb.num_illegal_blocks = 0;
+ pb.suppress = 0; pb.clear = 0;
+ pb.fragmented = 0;
+ pb.compressed = 0;
+ pb.previous_block = 0;
+ pb.is_dir = LINUX_S_ISDIR(inode->i_mode);
+ pb.is_reg = LINUX_S_ISREG(inode->i_mode);
+ pb.max_blocks = 1 << (31 - fs->super->s_log_block_size);
+ pb.inode = inode;
+ pb.pctx = pctx;
+ pb.ctx = ctx;
+ pctx->ino = ino;
+ pctx->errcode = 0;
+
+ if (inode->i_flags & EXT2_COMPRBLK_FL) {
+ if (fs->super->s_feature_incompat &
+ EXT2_FEATURE_INCOMPAT_COMPRESSION)
+ pb.compressed = 1;
+ else {
+ if (fix_problem(ctx, PR_1_COMPR_SET, pctx)) {
+ inode->i_flags &= ~EXT2_COMPRBLK_FL;
+ dirty_inode++;
+ }
+ }
+ }
+
+ if (inode->i_file_acl && check_ext_attr(ctx, pctx, block_buf))
+ pb.num_blocks++;
+
+ if (ext2fs_inode_has_valid_blocks(inode))
+ pctx->errcode = ext2fs_block_iterate2(fs, ino,
+ pb.is_dir ? BLOCK_FLAG_HOLE : 0,
+ block_buf, process_block, &pb);
+ end_problem_latch(ctx, PR_LATCH_BLOCK);
+ end_problem_latch(ctx, PR_LATCH_TOOBIG);
+ if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
+ goto out;
+ if (pctx->errcode)
+ fix_problem(ctx, PR_1_BLOCK_ITERATE, pctx);
+
+ if (pb.fragmented && pb.num_blocks < fs->super->s_blocks_per_group)
+ ctx->fs_fragmented++;
+
+ if (pb.clear) {
+ inode->i_links_count = 0;
+ ext2fs_icount_store(ctx->inode_link_info, ino, 0);
+ inode->i_dtime = time(0);
+ dirty_inode++;
+ ext2fs_unmark_inode_bitmap(ctx->inode_dir_map, ino);
+ ext2fs_unmark_inode_bitmap(ctx->inode_reg_map, ino);
+ ext2fs_unmark_inode_bitmap(ctx->inode_used_map, ino);
+ /*
+ * The inode was probably partially accounted for
+ * before processing was aborted, so we need to
+ * restart the pass 1 scan.
+ */
+ ctx->flags |= E2F_FLAG_RESTART;
+ goto out;
+ }
+
+ if (inode->i_flags & EXT2_INDEX_FL) {
+ if (handle_htree(ctx, pctx, ino, inode, block_buf)) {
+ inode->i_flags &= ~EXT2_INDEX_FL;
+ dirty_inode++;
+ } else {
+#ifdef ENABLE_HTREE
+ e2fsck_add_dx_dir(ctx, ino, pb.last_block+1);
+#endif
+ }
+ }
+ if (ctx->dirs_to_hash && pb.is_dir &&
+ !(inode->i_flags & EXT2_INDEX_FL) &&
+ ((inode->i_size / fs->blocksize) >= 3))
+ ext2fs_u32_list_add(ctx->dirs_to_hash, ino);
+
+ if (!pb.num_blocks && pb.is_dir) {
+ if (fix_problem(ctx, PR_1_ZERO_LENGTH_DIR, pctx)) {
+ inode->i_links_count = 0;
+ ext2fs_icount_store(ctx->inode_link_info, ino, 0);
+ inode->i_dtime = time(0);
+ dirty_inode++;
+ ext2fs_unmark_inode_bitmap(ctx->inode_dir_map, ino);
+ ext2fs_unmark_inode_bitmap(ctx->inode_reg_map, ino);
+ ext2fs_unmark_inode_bitmap(ctx->inode_used_map, ino);
+ ctx->fs_directory_count--;
+ goto out;
+ }
+ }
+
+ pb.num_blocks *= (fs->blocksize / 512);
+#if 0
+ printf("inode %u, i_size = %lu, last_block = %lld, i_blocks=%lu, num_blocks = %lu\n",
+ ino, inode->i_size, pb.last_block, inode->i_blocks,
+ pb.num_blocks);
+#endif
+ if (pb.is_dir) {
+ int nblock = inode->i_size >> EXT2_BLOCK_SIZE_BITS(fs->super);
+ if (nblock > (pb.last_block + 1))
+ bad_size = 1;
+ else if (nblock < (pb.last_block + 1)) {
+ if (((pb.last_block + 1) - nblock) >
+ fs->super->s_prealloc_dir_blocks)
+ bad_size = 2;
+ }
+ } else {
+ size = EXT2_I_SIZE(inode);
+ if ((pb.last_block >= 0) &&
+ (size < (__u64) pb.last_block * fs->blocksize))
+ bad_size = 3;
+ else if (size > ext2_max_sizes[fs->super->s_log_block_size])
+ bad_size = 4;
+ }
+ /* i_size for symlinks is checked elsewhere */
+ if (bad_size && !LINUX_S_ISLNK(inode->i_mode)) {
+ pctx->num = (pb.last_block+1) * fs->blocksize;
+ if (fix_problem(ctx, PR_1_BAD_I_SIZE, pctx)) {
+ inode->i_size = pctx->num;
+ if (!LINUX_S_ISDIR(inode->i_mode))
+ inode->i_size_high = pctx->num >> 32;
+ dirty_inode++;
+ }
+ pctx->num = 0;
+ }
+ if (LINUX_S_ISREG(inode->i_mode) &&
+ (inode->i_size_high || inode->i_size & 0x80000000UL))
+ ctx->large_files++;
+ if (pb.num_blocks != inode->i_blocks) {
+ pctx->num = pb.num_blocks;
+ if (fix_problem(ctx, PR_1_BAD_I_BLOCKS, pctx)) {
+ inode->i_blocks = pb.num_blocks;
+ dirty_inode++;
+ }
+ pctx->num = 0;
+ }
+out:
+ if (dirty_inode)
+ e2fsck_write_inode(ctx, ino, inode, "check_blocks");
+}
+
+#if 0
+/*
+ * Helper function called by process block when an illegal block is
+ * found. It returns a description about why the block is illegal
+ */
+static char *describe_illegal_block(ext2_filsys fs, blk_t block)
+{
+ blk_t super;
+ int i;
+ static char problem[80];
+
+ super = fs->super->s_first_data_block;
+ strcpy(problem, "PROGRAMMING ERROR: Unknown reason for illegal block");
+ if (block < super) {
+ sprintf(problem, "< FIRSTBLOCK (%u)", super);
+ return(problem);
+ } else if (block >= fs->super->s_blocks_count) {
+ sprintf(problem, "> BLOCKS (%u)", fs->super->s_blocks_count);
+ return(problem);
+ }
+ for (i = 0; i < fs->group_desc_count; i++) {
+ if (block == super) {
+ sprintf(problem, "is the superblock in group %d", i);
+ break;
+ }
+ if (block > super &&
+ block <= (super + fs->desc_blocks)) {
+ sprintf(problem, "is in the group descriptors "
+ "of group %d", i);
+ break;
+ }
+ if (block == fs->group_desc[i].bg_block_bitmap) {
+ sprintf(problem, "is the block bitmap of group %d", i);
+ break;
+ }
+ if (block == fs->group_desc[i].bg_inode_bitmap) {
+ sprintf(problem, "is the inode bitmap of group %d", i);
+ break;
+ }
+ if (block >= fs->group_desc[i].bg_inode_table &&
+ (block < fs->group_desc[i].bg_inode_table
+ + fs->inode_blocks_per_group)) {
+ sprintf(problem, "is in the inode table of group %d",
+ i);
+ break;
+ }
+ super += fs->super->s_blocks_per_group;
+ }
+ return(problem);
+}
+#endif
+
+/*
+ * This is a helper function for check_blocks().
+ */
+static int process_block(ext2_filsys fs,
+ blk_t *block_nr,
+ e2_blkcnt_t blockcnt,
+ blk_t ref_block EXT2FS_ATTR((unused)),
+ int ref_offset EXT2FS_ATTR((unused)),
+ void *priv_data)
+{
+ struct process_block_struct_1 *p;
+ struct problem_context *pctx;
+ blk_t blk = *block_nr;
+ int ret_code = 0;
+ int problem = 0;
+ e2fsck_t ctx;
+
+ p = (struct process_block_struct_1 *) priv_data;
+ pctx = p->pctx;
+ ctx = p->ctx;
+
+ if (p->compressed && (blk == EXT2FS_COMPRESSED_BLKADDR)) {
+ /* todo: Check that the comprblk_fl is high, that the
+ blkaddr pattern looks right (all non-holes up to
+ first EXT2FS_COMPRESSED_BLKADDR, then all
+ EXT2FS_COMPRESSED_BLKADDR up to end of cluster),
+ that the feature_incompat bit is high, and that the
+ inode is a regular file. If we're doing a "full
+ check" (a concept introduced to e2fsck by e2compr,
+ meaning that we look at data blocks as well as
+ metadata) then call some library routine that
+ checks the compressed data. I'll have to think
+ about this, because one particularly important
+ problem to be able to fix is to recalculate the
+ cluster size if necessary. I think that perhaps
+ we'd better do most/all e2compr-specific checks
+ separately, after the non-e2compr checks. If not
+ doing a full check, it may be useful to test that
+ the personality is linux; e.g. if it isn't then
+ perhaps this really is just an illegal block. */
+ return 0;
+ }
+
+ if (blk == 0) {
+ if (p->is_dir == 0) {
+ /*
+ * Should never happen, since only directories
+ * get called with BLOCK_FLAG_HOLE
+ */
+#if DEBUG_E2FSCK
+ printf("process_block() called with blk == 0, "
+ "blockcnt=%d, inode %lu???\n",
+ blockcnt, p->ino);
+#endif
+ return 0;
+ }
+ if (blockcnt < 0)
+ return 0;
+ if (blockcnt * fs->blocksize < p->inode->i_size) {
+#if 0
+ printf("Missing block (#%d) in directory inode %lu!\n",
+ blockcnt, p->ino);
+#endif
+ goto mark_dir;
+ }
+ return 0;
+ }
+
+#if 0
+ printf("Process_block, inode %lu, block %u, #%d\n", p->ino, blk,
+ blockcnt);
+#endif
+
+ /*
+ * Simplistic fragmentation check. We merely require that the
+ * file be contiguous. (Which can never be true for really
+ * big files that are greater than a block group.)
+ */
+ if (!HOLE_BLKADDR(p->previous_block)) {
+ if (p->previous_block+1 != blk)
+ p->fragmented = 1;
+ }
+ p->previous_block = blk;
+
+ if (p->is_dir && blockcnt > (1 << (21 - fs->super->s_log_block_size)))
+ problem = PR_1_TOOBIG_DIR;
+ if (p->is_reg && p->num_blocks+1 >= p->max_blocks)
+ problem = PR_1_TOOBIG_REG;
+ if (!p->is_dir && !p->is_reg && blockcnt > 0)
+ problem = PR_1_TOOBIG_SYMLINK;
+
+ if (blk < fs->super->s_first_data_block ||
+ blk >= fs->super->s_blocks_count)
+ problem = PR_1_ILLEGAL_BLOCK_NUM;
+
+ if (problem) {
+ p->num_illegal_blocks++;
+ if (!p->suppress && (p->num_illegal_blocks % 12) == 0) {
+ if (fix_problem(ctx, PR_1_TOO_MANY_BAD_BLOCKS, pctx)) {
+ p->clear = 1;
+ return BLOCK_ABORT;
+ }
+ if (fix_problem(ctx, PR_1_SUPPRESS_MESSAGES, pctx)) {
+ p->suppress = 1;
+ set_latch_flags(PR_LATCH_BLOCK,
+ PRL_SUPPRESS, 0);
+ }
+ }
+ pctx->blk = blk;
+ pctx->blkcount = blockcnt;
+ if (fix_problem(ctx, problem, pctx)) {
+ blk = *block_nr = 0;
+ ret_code = BLOCK_CHANGED;
+ goto mark_dir;
+ } else
+ return 0;
+ }
+
+ if (p->ino == EXT2_RESIZE_INO) {
+ /*
+ * The resize inode has already be sanity checked
+ * during pass #0 (the superblock checks). All we
+ * have to do is mark the double indirect block as
+ * being in use; all of the other blocks are handled
+ * by mark_table_blocks()).
+ */
+ if (blockcnt == BLOCK_COUNT_DIND)
+ mark_block_used(ctx, blk);
+ } else
+ mark_block_used(ctx, blk);
+ p->num_blocks++;
+ if (blockcnt >= 0)
+ p->last_block = blockcnt;
+mark_dir:
+ if (p->is_dir && (blockcnt >= 0)) {
+ pctx->errcode = ext2fs_add_dir_block(fs->dblist, p->ino,
+ blk, blockcnt);
+ if (pctx->errcode) {
+ pctx->blk = blk;
+ pctx->num = blockcnt;
+ fix_problem(ctx, PR_1_ADD_DBLOCK, pctx);
+ /* Should never get here */
+ ctx->flags |= E2F_FLAG_ABORT;
+ return BLOCK_ABORT;
+ }
+ }
+ return ret_code;
+}
+
+static int process_bad_block(ext2_filsys fs,
+ blk_t *block_nr,
+ e2_blkcnt_t blockcnt,
+ blk_t ref_block EXT2FS_ATTR((unused)),
+ int ref_offset EXT2FS_ATTR((unused)),
+ void *priv_data)
+{
+ struct process_block_struct_1 *p;
+ blk_t blk = *block_nr;
+ blk_t first_block;
+ dgrp_t i;
+ struct problem_context *pctx;
+ e2fsck_t ctx;
+
+ /*
+ * Note: This function processes blocks for the bad blocks
+ * inode, which is never compressed. So we don't use HOLE_BLKADDR().
+ */
+
+ if (!blk)
+ return 0;
+
+ p = (struct process_block_struct_1 *) priv_data;
+ ctx = p->ctx;
+ pctx = p->pctx;
+
+ pctx->ino = EXT2_BAD_INO;
+ pctx->blk = blk;
+ pctx->blkcount = blockcnt;
+
+ if ((blk < fs->super->s_first_data_block) ||
+ (blk >= fs->super->s_blocks_count)) {
+ if (fix_problem(ctx, PR_1_BB_ILLEGAL_BLOCK_NUM, pctx)) {
+ *block_nr = 0;
+ return BLOCK_CHANGED;
+ } else
+ return 0;
+ }
+
+ if (blockcnt < 0) {
+ if (ext2fs_test_block_bitmap(p->fs_meta_blocks, blk)) {
+ p->bbcheck = 1;
+ if (fix_problem(ctx, PR_1_BB_FS_BLOCK, pctx)) {
+ *block_nr = 0;
+ return BLOCK_CHANGED;
+ }
+ } else if (ext2fs_test_block_bitmap(ctx->block_found_map,
+ blk)) {
+ p->bbcheck = 1;
+ if (fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK,
+ pctx)) {
+ *block_nr = 0;
+ return BLOCK_CHANGED;
+ }
+ if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
+ return BLOCK_ABORT;
+ } else
+ mark_block_used(ctx, blk);
+ return 0;
+ }
+#if 0
+ printf ("DEBUG: Marking %u as bad.\n", blk);
+#endif
+ ctx->fs_badblocks_count++;
+ /*
+ * If the block is not used, then mark it as used and return.
+ * If it is already marked as found, this must mean that
+ * there's an overlap between the filesystem table blocks
+ * (bitmaps and inode table) and the bad block list.
+ */
+ if (!ext2fs_test_block_bitmap(ctx->block_found_map, blk)) {
+ ext2fs_mark_block_bitmap(ctx->block_found_map, blk);
+ return 0;
+ }
+ /*
+ * Try to find the where the filesystem block was used...
+ */
+ first_block = fs->super->s_first_data_block;
+
+ for (i = 0; i < fs->group_desc_count; i++ ) {
+ pctx->group = i;
+ pctx->blk = blk;
+ if (!ext2fs_bg_has_super(fs, i))
+ goto skip_super;
+ if (blk == first_block) {
+ if (i == 0) {
+ if (fix_problem(ctx,
+ PR_1_BAD_PRIMARY_SUPERBLOCK,
+ pctx)) {
+ *block_nr = 0;
+ return BLOCK_CHANGED;
+ }
+ return 0;
+ }
+ fix_problem(ctx, PR_1_BAD_SUPERBLOCK, pctx);
+ return 0;
+ }
+ if ((blk > first_block) &&
+ (blk <= first_block + fs->desc_blocks)) {
+ if (i == 0) {
+ pctx->blk = *block_nr;
+ if (fix_problem(ctx,
+ PR_1_BAD_PRIMARY_GROUP_DESCRIPTOR, pctx)) {
+ *block_nr = 0;
+ return BLOCK_CHANGED;
+ }
+ return 0;
+ }
+ fix_problem(ctx, PR_1_BAD_GROUP_DESCRIPTORS, pctx);
+ return 0;
+ }
+ skip_super:
+ if (blk == fs->group_desc[i].bg_block_bitmap) {
+ if (fix_problem(ctx, PR_1_BB_BAD_BLOCK, pctx)) {
+ ctx->invalid_block_bitmap_flag[i]++;
+ ctx->invalid_bitmaps++;
+ }
+ return 0;
+ }
+ if (blk == fs->group_desc[i].bg_inode_bitmap) {
+ if (fix_problem(ctx, PR_1_IB_BAD_BLOCK, pctx)) {
+ ctx->invalid_inode_bitmap_flag[i]++;
+ ctx->invalid_bitmaps++;
+ }
+ return 0;
+ }
+ if ((blk >= fs->group_desc[i].bg_inode_table) &&
+ (blk < (fs->group_desc[i].bg_inode_table +
+ fs->inode_blocks_per_group))) {
+ /*
+ * If there are bad blocks in the inode table,
+ * the inode scan code will try to do
+ * something reasonable automatically.
+ */
+ return 0;
+ }
+ first_block += fs->super->s_blocks_per_group;
+ }
+ /*
+ * If we've gotten to this point, then the only
+ * possibility is that the bad block inode meta data
+ * is using a bad block.
+ */
+ if ((blk == p->inode->i_block[EXT2_IND_BLOCK]) ||
+ (blk == p->inode->i_block[EXT2_DIND_BLOCK]) ||
+ (blk == p->inode->i_block[EXT2_TIND_BLOCK])) {
+ p->bbcheck = 1;
+ if (fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK, pctx)) {
+ *block_nr = 0;
+ return BLOCK_CHANGED;
+ }
+ if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
+ return BLOCK_ABORT;
+ return 0;
+ }
+
+ pctx->group = -1;
+
+ /* Warn user that the block wasn't claimed */
+ fix_problem(ctx, PR_1_PROGERR_CLAIMED_BLOCK, pctx);
+
+ return 0;
+}
+
+static void new_table_block(e2fsck_t ctx, blk_t first_block, int group,
+ const char *name, int num, blk_t *new_block)
+{
+ ext2_filsys fs = ctx->fs;
+ blk_t old_block = *new_block;
+ int i;
+ char *buf;
+ struct problem_context pctx;
+
+ clear_problem_context(&pctx);
+
+ pctx.group = group;
+ pctx.blk = old_block;
+ pctx.str = name;
+
+ pctx.errcode = ext2fs_get_free_blocks(fs, first_block,
+ first_block + fs->super->s_blocks_per_group,
+ num, ctx->block_found_map, new_block);
+ if (pctx.errcode) {
+ pctx.num = num;
+ fix_problem(ctx, PR_1_RELOC_BLOCK_ALLOCATE, &pctx);
+ ext2fs_unmark_valid(fs);
+ return;
+ }
+ pctx.errcode = ext2fs_get_mem(fs->blocksize, &buf);
+ if (pctx.errcode) {
+ fix_problem(ctx, PR_1_RELOC_MEMORY_ALLOCATE, &pctx);
+ ext2fs_unmark_valid(fs);
+ return;
+ }
+ ext2fs_mark_super_dirty(fs);
+ fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
+ pctx.blk2 = *new_block;
+ fix_problem(ctx, (old_block ? PR_1_RELOC_FROM_TO :
+ PR_1_RELOC_TO), &pctx);
+ pctx.blk2 = 0;
+ for (i = 0; i < num; i++) {
+ pctx.blk = i;
+ ext2fs_mark_block_bitmap(ctx->block_found_map, (*new_block)+i);
+ if (old_block) {
+ pctx.errcode = io_channel_read_blk(fs->io,
+ old_block + i, 1, buf);
+ if (pctx.errcode)
+ fix_problem(ctx, PR_1_RELOC_READ_ERR, &pctx);
+ } else
+ memset(buf, 0, fs->blocksize);
+
+ pctx.blk = (*new_block) + i;
+ pctx.errcode = io_channel_write_blk(fs->io, pctx.blk,
+ 1, buf);
+ if (pctx.errcode)
+ fix_problem(ctx, PR_1_RELOC_WRITE_ERR, &pctx);
+ }
+ ext2fs_free_mem(&buf);
+}
+
+/*
+ * This routine gets called at the end of pass 1 if bad blocks are
+ * detected in the superblock, group descriptors, inode_bitmaps, or
+ * block bitmaps. At this point, all of the blocks have been mapped
+ * out, so we can try to allocate new block(s) to replace the bad
+ * blocks.
+ */
+static void handle_fs_bad_blocks(e2fsck_t ctx)
+{
+ ext2_filsys fs = ctx->fs;
+ dgrp_t i;
+ int first_block = fs->super->s_first_data_block;
+
+ for (i = 0; i < fs->group_desc_count; i++) {
+ if (ctx->invalid_block_bitmap_flag[i]) {
+ new_table_block(ctx, first_block, i, _("block bitmap"),
+ 1, &fs->group_desc[i].bg_block_bitmap);
+ }
+ if (ctx->invalid_inode_bitmap_flag[i]) {
+ new_table_block(ctx, first_block, i, _("inode bitmap"),
+ 1, &fs->group_desc[i].bg_inode_bitmap);
+ }
+ if (ctx->invalid_inode_table_flag[i]) {
+ new_table_block(ctx, first_block, i, _("inode table"),
+ fs->inode_blocks_per_group,
+ &fs->group_desc[i].bg_inode_table);
+ ctx->flags |= E2F_FLAG_RESTART;
+ }
+ first_block += fs->super->s_blocks_per_group;
+ }
+ ctx->invalid_bitmaps = 0;
+}
+
+/*
+ * This routine marks all blocks which are used by the superblock,
+ * group descriptors, inode bitmaps, and block bitmaps.
+ */
+static void mark_table_blocks(e2fsck_t ctx)
+{
+ ext2_filsys fs = ctx->fs;
+ blk_t block, b;
+ dgrp_t i;
+ int j;
+ struct problem_context pctx;
+
+ clear_problem_context(&pctx);
+
+ block = fs->super->s_first_data_block;
+ for (i = 0; i < fs->group_desc_count; i++) {
+ pctx.group = i;
+
+ ext2fs_reserve_super_and_bgd(fs, i, ctx->block_found_map);
+
+ /*
+ * Mark the blocks used for the inode table
+ */
+ if (fs->group_desc[i].bg_inode_table) {
+ for (j = 0, b = fs->group_desc[i].bg_inode_table;
+ j < fs->inode_blocks_per_group;
+ j++, b++) {
+ if (ext2fs_test_block_bitmap(ctx->block_found_map,
+ b)) {
+ pctx.blk = b;
+ if (fix_problem(ctx,
+ PR_1_ITABLE_CONFLICT, &pctx)) {
+ ctx->invalid_inode_table_flag[i]++;
+ ctx->invalid_bitmaps++;
+ }
+ } else {
+ ext2fs_mark_block_bitmap(ctx->block_found_map,
+ b);
+ }
+ }
+ }
+
+ /*
+ * Mark block used for the block bitmap
+ */
+ if (fs->group_desc[i].bg_block_bitmap) {
+ if (ext2fs_test_block_bitmap(ctx->block_found_map,
+ fs->group_desc[i].bg_block_bitmap)) {
+ pctx.blk = fs->group_desc[i].bg_block_bitmap;
+ if (fix_problem(ctx, PR_1_BB_CONFLICT, &pctx)) {
+ ctx->invalid_block_bitmap_flag[i]++;
+ ctx->invalid_bitmaps++;
+ }
+ } else {
+ ext2fs_mark_block_bitmap(ctx->block_found_map,
+ fs->group_desc[i].bg_block_bitmap);
+ }
+
+ }
+ /*
+ * Mark block used for the inode bitmap
+ */
+ if (fs->group_desc[i].bg_inode_bitmap) {
+ if (ext2fs_test_block_bitmap(ctx->block_found_map,
+ fs->group_desc[i].bg_inode_bitmap)) {
+ pctx.blk = fs->group_desc[i].bg_inode_bitmap;
+ if (fix_problem(ctx, PR_1_IB_CONFLICT, &pctx)) {
+ ctx->invalid_inode_bitmap_flag[i]++;
+ ctx->invalid_bitmaps++;
+ }
+ } else {
+ ext2fs_mark_block_bitmap(ctx->block_found_map,
+ fs->group_desc[i].bg_inode_bitmap);
+ }
+ }
+ block += fs->super->s_blocks_per_group;
+ }
+}
+
+/*
+ * Thes subroutines short circuits ext2fs_get_blocks and
+ * ext2fs_check_directory; we use them since we already have the inode
+ * structure, so there's no point in letting the ext2fs library read
+ * the inode again.
+ */
+static errcode_t pass1_get_blocks(ext2_filsys fs, ext2_ino_t ino,
+ blk_t *blocks)
+{
+ e2fsck_t ctx = (e2fsck_t) fs->priv_data;
+ int i;
+
+ if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
+ return EXT2_ET_CALLBACK_NOTHANDLED;
+
+ for (i=0; i < EXT2_N_BLOCKS; i++)
+ blocks[i] = ctx->stashed_inode->i_block[i];
+ return 0;
+}
+
+static errcode_t pass1_read_inode(ext2_filsys fs, ext2_ino_t ino,
+ struct ext2_inode *inode)
+{
+ e2fsck_t ctx = (e2fsck_t) fs->priv_data;
+
+ if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
+ return EXT2_ET_CALLBACK_NOTHANDLED;
+ *inode = *ctx->stashed_inode;
+ return 0;
+}
+
+static errcode_t pass1_write_inode(ext2_filsys fs, ext2_ino_t ino,
+ struct ext2_inode *inode)
+{
+ e2fsck_t ctx = (e2fsck_t) fs->priv_data;
+
+ if ((ino == ctx->stashed_ino) && ctx->stashed_inode)
+ *ctx->stashed_inode = *inode;
+ return EXT2_ET_CALLBACK_NOTHANDLED;
+}
+
+static errcode_t pass1_check_directory(ext2_filsys fs, ext2_ino_t ino)
+{
+ e2fsck_t ctx = (e2fsck_t) fs->priv_data;
+
+ if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
+ return EXT2_ET_CALLBACK_NOTHANDLED;
+
+ if (!LINUX_S_ISDIR(ctx->stashed_inode->i_mode))
+ return EXT2_ET_NO_DIRECTORY;
+ return 0;
+}
+
+void e2fsck_use_inode_shortcuts(e2fsck_t ctx, int bool)
+{
+ ext2_filsys fs = ctx->fs;
+
+ if (bool) {
+ fs->get_blocks = pass1_get_blocks;
+ fs->check_directory = pass1_check_directory;
+ fs->read_inode = pass1_read_inode;
+ fs->write_inode = pass1_write_inode;
+ ctx->stashed_ino = 0;
+ } else {
+ fs->get_blocks = 0;
+ fs->check_directory = 0;
+ fs->read_inode = 0;
+ fs->write_inode = 0;
+ }
+}
+/*
+ * pass1b.c --- Pass #1b of e2fsck
+ *
+ * This file contains pass1B, pass1C, and pass1D of e2fsck. They are
+ * only invoked if pass 1 discovered blocks which are in use by more
+ * than one inode.
+ *
+ * Pass1B scans the data blocks of all the inodes again, generating a
+ * complete list of duplicate blocks and which inodes have claimed
+ * them.
+ *
+ * Pass1C does a tree-traversal of the filesystem, to determine the
+ * parent directories of these inodes. This step is necessary so that
+ * e2fsck can print out the pathnames of affected inodes.
+ *
+ * Pass1D is a reconciliation pass. For each inode with duplicate
+ * blocks, the user is prompted if s/he would like to clone the file
+ * (so that the file gets a fresh copy of the duplicated blocks) or
+ * simply to delete the file.
+ *
+ * Copyright (C) 1993, 1994, 1995, 1996, 1997 Theodore Ts'o.
+ *
+ * %Begin-Header%
+ * This file may be redistributed under the terms of the GNU Public
+ * License.
+ * %End-Header%
+ *
+ */
+
+
+/* Needed for architectures where sizeof(int) != sizeof(void *) */
+#define INT_TO_VOIDPTR(val) ((void *)(intptr_t)(val))
+#define VOIDPTR_TO_INT(ptr) ((int)(intptr_t)(ptr))
+
+/* Define an extension to the ext2 library's block count information */
+#define BLOCK_COUNT_EXTATTR (-5)
+
+struct block_el {
+ blk_t block;
+ struct block_el *next;
+};
+
+struct inode_el {
+ ext2_ino_t inode;
+ struct inode_el *next;
+};
+
+struct dup_block {
+ int num_bad;
+ struct inode_el *inode_list;
+};
+
+/*
+ * This structure stores information about a particular inode which
+ * is sharing blocks with other inodes. This information is collected
+ * to display to the user, so that the user knows what files he or she
+ * is dealing with, when trying to decide how to resolve the conflict
+ * of multiply-claimed blocks.
+ */
+struct dup_inode {
+ ext2_ino_t dir;
+ int num_dupblocks;
+ struct ext2_inode inode;
+ struct block_el *block_list;
+};
+
+static int process_pass1b_block(ext2_filsys fs, blk_t *blocknr,
+ e2_blkcnt_t blockcnt, blk_t ref_blk,
+ int ref_offset, void *priv_data);
+static void delete_file(e2fsck_t ctx, ext2_ino_t ino,
+ struct dup_inode *dp, char *block_buf);
+static int clone_file(e2fsck_t ctx, ext2_ino_t ino,
+ struct dup_inode *dp, char* block_buf);
+static int check_if_fs_block(e2fsck_t ctx, blk_t test_blk);
+
+static void pass1b(e2fsck_t ctx, char *block_buf);
+static void pass1c(e2fsck_t ctx, char *block_buf);
+static void pass1d(e2fsck_t ctx, char *block_buf);
+
+static int dup_inode_count = 0;
+
+static dict_t blk_dict, ino_dict;
+
+static ext2fs_inode_bitmap inode_dup_map;
+
+static int dict_int_cmp(const void *a, const void *b)
+{
+ intptr_t ia, ib;
+
+ ia = (intptr_t)a;
+ ib = (intptr_t)b;
+
+ return (ia-ib);
+}
+
+/*
+ * Add a duplicate block record
+ */
+static void add_dupe(e2fsck_t ctx, ext2_ino_t ino, blk_t blk,
+ struct ext2_inode *inode)
+{
+ dnode_t *n;
+ struct dup_block *db;
+ struct dup_inode *di;
+ struct block_el *blk_el;
+ struct inode_el *ino_el;
+
+ n = dict_lookup(&blk_dict, INT_TO_VOIDPTR(blk));
+ if (n)
+ db = (struct dup_block *) dnode_get(n);
+ else {
+ db = (struct dup_block *) e2fsck_allocate_memory(ctx,
+ sizeof(struct dup_block), "duplicate block header");
+ db->num_bad = 0;
+ db->inode_list = 0;
+ dict_alloc_insert(&blk_dict, INT_TO_VOIDPTR(blk), db);
+ }
+ ino_el = (struct inode_el *) e2fsck_allocate_memory(ctx,
+ sizeof(struct inode_el), "inode element");
+ ino_el->inode = ino;
+ ino_el->next = db->inode_list;
+ db->inode_list = ino_el;
+ db->num_bad++;
+
+ n = dict_lookup(&ino_dict, INT_TO_VOIDPTR(ino));
+ if (n)
+ di = (struct dup_inode *) dnode_get(n);
+ else {
+ di = (struct dup_inode *) e2fsck_allocate_memory(ctx,
+ sizeof(struct dup_inode), "duplicate inode header");
+ di->dir = (ino == EXT2_ROOT_INO) ? EXT2_ROOT_INO : 0 ;
+ di->num_dupblocks = 0;
+ di->block_list = 0;
+ di->inode = *inode;
+ dict_alloc_insert(&ino_dict, INT_TO_VOIDPTR(ino), di);
+ }
+ blk_el = (struct block_el *) e2fsck_allocate_memory(ctx,
+ sizeof(struct block_el), "block element");
+ blk_el->block = blk;
+ blk_el->next = di->block_list;
+ di->block_list = blk_el;
+ di->num_dupblocks++;
+}
+
+/*
+ * Free a duplicate inode record
+ */
+static void inode_dnode_free(dnode_t *node,
+ void *context EXT2FS_ATTR((unused)))
+{
+ struct dup_inode *di;
+ struct block_el *p, *next;
+
+ di = (struct dup_inode *) dnode_get(node);
+ for (p = di->block_list; p; p = next) {
+ next = p->next;
+ free(p);
+ }
+ free(node);
+}
+
+/*
+ * Free a duplicate block record
+ */
+static void block_dnode_free(dnode_t *node,
+ void *context EXT2FS_ATTR((unused)))
+{
+ struct dup_block *db;
+ struct inode_el *p, *next;
+
+ db = (struct dup_block *) dnode_get(node);
+ for (p = db->inode_list; p; p = next) {
+ next = p->next;
+ free(p);
+ }
+ free(node);
+}
+
+
+/*
+ * Main procedure for handling duplicate blocks
+ */
+void e2fsck_pass1_dupblocks(e2fsck_t ctx, char *block_buf)
+{
+ ext2_filsys fs = ctx->fs;
+ struct problem_context pctx;
+
+ clear_problem_context(&pctx);
+
+ pctx.errcode = ext2fs_allocate_inode_bitmap(fs,
+ _("multiply claimed inode map"), &inode_dup_map);
+ if (pctx.errcode) {
+ fix_problem(ctx, PR_1B_ALLOCATE_IBITMAP_ERROR, &pctx);
+ ctx->flags |= E2F_FLAG_ABORT;
+ return;
+ }
+
+ dict_init(&ino_dict, DICTCOUNT_T_MAX, dict_int_cmp);
+ dict_init(&blk_dict, DICTCOUNT_T_MAX, dict_int_cmp);
+ dict_set_allocator(&ino_dict, NULL, inode_dnode_free, NULL);
+ dict_set_allocator(&blk_dict, NULL, block_dnode_free, NULL);
+
+ pass1b(ctx, block_buf);
+ pass1c(ctx, block_buf);
+ pass1d(ctx, block_buf);
+
+ /*
+ * Time to free all of the accumulated data structures that we
+ * don't need anymore.
+ */
+ dict_free_nodes(&ino_dict);
+ dict_free_nodes(&blk_dict);
+}
+
+/*
+ * Scan the inodes looking for inodes that contain duplicate blocks.
+ */
+struct process_block_struct_1b {
+ e2fsck_t ctx;
+ ext2_ino_t ino;
+ int dup_blocks;
+ struct ext2_inode *inode;
+ struct problem_context *pctx;
+};
+
+static void pass1b(e2fsck_t ctx, char *block_buf)
+{
+ ext2_filsys fs = ctx->fs;
+ ext2_ino_t ino;
+ struct ext2_inode inode;
+ ext2_inode_scan scan;
+ struct process_block_struct_1b pb;
+ struct problem_context pctx;
+
+ clear_problem_context(&pctx);
+
+ if (!(ctx->options & E2F_OPT_PREEN))
+ fix_problem(ctx, PR_1B_PASS_HEADER, &pctx);
+ pctx.errcode = ext2fs_open_inode_scan(fs, ctx->inode_buffer_blocks,
+ &scan);
+ if (pctx.errcode) {
+ fix_problem(ctx, PR_1B_ISCAN_ERROR, &pctx);
+ ctx->flags |= E2F_FLAG_ABORT;
+ return;
+ }
+ ctx->stashed_inode = &inode;
+ pb.ctx = ctx;
+ pb.pctx = &pctx;
+ pctx.str = "pass1b";
+ while (1) {
+ pctx.errcode = ext2fs_get_next_inode(scan, &ino, &inode);
+ if (pctx.errcode == EXT2_ET_BAD_BLOCK_IN_INODE_TABLE)
+ continue;
+ if (pctx.errcode) {
+ fix_problem(ctx, PR_1B_ISCAN_ERROR, &pctx);
+ ctx->flags |= E2F_FLAG_ABORT;
+ return;
+ }
+ if (!ino)
+ break;
+ pctx.ino = ctx->stashed_ino = ino;
+ if ((ino != EXT2_BAD_INO) &&
+ !ext2fs_test_inode_bitmap(ctx->inode_used_map, ino))
+ continue;
+
+ pb.ino = ino;
+ pb.dup_blocks = 0;
+ pb.inode = &inode;
+
+ if (ext2fs_inode_has_valid_blocks(&inode) ||
+ (ino == EXT2_BAD_INO))
+ pctx.errcode = ext2fs_block_iterate2(fs, ino,
+ 0, block_buf, process_pass1b_block, &pb);
+ if (inode.i_file_acl)
+ process_pass1b_block(fs, &inode.i_file_acl,
+ BLOCK_COUNT_EXTATTR, 0, 0, &pb);
+ if (pb.dup_blocks) {
+ end_problem_latch(ctx, PR_LATCH_DBLOCK);
+ if (ino >= EXT2_FIRST_INODE(fs->super) ||
+ ino == EXT2_ROOT_INO)
+ dup_inode_count++;
+ }
+ if (pctx.errcode)
+ fix_problem(ctx, PR_1B_BLOCK_ITERATE, &pctx);
+ }
+ ext2fs_close_inode_scan(scan);
+ e2fsck_use_inode_shortcuts(ctx, 0);
+}
+
+static int process_pass1b_block(ext2_filsys fs EXT2FS_ATTR((unused)),
+ blk_t *block_nr,
+ e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
+ blk_t ref_blk EXT2FS_ATTR((unused)),
+ int ref_offset EXT2FS_ATTR((unused)),
+ void *priv_data)
+{
+ struct process_block_struct_1b *p;
+ e2fsck_t ctx;
+
+ if (HOLE_BLKADDR(*block_nr))
+ return 0;
+ p = (struct process_block_struct_1b *) priv_data;
+ ctx = p->ctx;
+
+ if (!ext2fs_test_block_bitmap(ctx->block_dup_map, *block_nr))
+ return 0;
+
+ /* OK, this is a duplicate block */
+ if (p->ino != EXT2_BAD_INO) {
+ p->pctx->blk = *block_nr;
+ fix_problem(ctx, PR_1B_DUP_BLOCK, p->pctx);
+ }
+ p->dup_blocks++;
+ ext2fs_mark_inode_bitmap(inode_dup_map, p->ino);
+
+ add_dupe(ctx, p->ino, *block_nr, p->inode);
+
+ return 0;
+}
+
+/*
+ * Pass 1c: Scan directories for inodes with duplicate blocks. This
+ * is used so that we can print pathnames when prompting the user for
+ * what to do.
+ */
+struct search_dir_struct {
+ int count;
+ ext2_ino_t first_inode;
+ ext2_ino_t max_inode;
+};
+
+static int search_dirent_proc(ext2_ino_t dir, int entry,
+ struct ext2_dir_entry *dirent,
+ int offset EXT2FS_ATTR((unused)),
+ int blocksize EXT2FS_ATTR((unused)),
+ char *buf EXT2FS_ATTR((unused)),
+ void *priv_data)
+{
+ struct search_dir_struct *sd;
+ struct dup_inode *p;
+ dnode_t *n;
+
+ sd = (struct search_dir_struct *) priv_data;
+
+ if (dirent->inode > sd->max_inode)
+ /* Should abort this inode, but not everything */
+ return 0;
+
+ if ((dirent->inode < sd->first_inode) || (entry < DIRENT_OTHER_FILE) ||
+ !ext2fs_test_inode_bitmap(inode_dup_map, dirent->inode))
+ return 0;
+
+ n = dict_lookup(&ino_dict, INT_TO_VOIDPTR(dirent->inode));
+ if (!n)
+ return 0;
+ p = (struct dup_inode *) dnode_get(n);
+ p->dir = dir;
+ sd->count--;
+
+ return(sd->count ? 0 : DIRENT_ABORT);
+}
+
+
+static void pass1c(e2fsck_t ctx, char *block_buf)
+{
+ ext2_filsys fs = ctx->fs;
+ struct search_dir_struct sd;
+ struct problem_context pctx;
+
+ clear_problem_context(&pctx);
+
+ if (!(ctx->options & E2F_OPT_PREEN))
+ fix_problem(ctx, PR_1C_PASS_HEADER, &pctx);
+
+ /*
+ * Search through all directories to translate inodes to names
+ * (by searching for the containing directory for that inode.)
+ */
+ sd.count = dup_inode_count;
+ sd.first_inode = EXT2_FIRST_INODE(fs->super);
+ sd.max_inode = fs->super->s_inodes_count;
+ ext2fs_dblist_dir_iterate(fs->dblist, 0, block_buf,
+ search_dirent_proc, &sd);
+}
+
+static void pass1d(e2fsck_t ctx, char *block_buf)
+{
+ ext2_filsys fs = ctx->fs;
+ struct dup_inode *p, *t;
+ struct dup_block *q;
+ ext2_ino_t *shared, ino;
+ int shared_len;
+ int i;
+ int file_ok;
+ int meta_data = 0;
+ struct problem_context pctx;
+ dnode_t *n, *m;
+ struct block_el *s;
+ struct inode_el *r;
+
+ clear_problem_context(&pctx);
+
+ if (!(ctx->options & E2F_OPT_PREEN))
+ fix_problem(ctx, PR_1D_PASS_HEADER, &pctx);
+ e2fsck_read_bitmaps(ctx);
+
+ pctx.num = dup_inode_count; /* dict_count(&ino_dict); */
+ fix_problem(ctx, PR_1D_NUM_DUP_INODES, &pctx);
+ shared = (ext2_ino_t *) e2fsck_allocate_memory(ctx,
+ sizeof(ext2_ino_t) * dict_count(&ino_dict),
+ "Shared inode list");
+ for (n = dict_first(&ino_dict); n; n = dict_next(&ino_dict, n)) {
+ p = (struct dup_inode *) dnode_get(n);
+ shared_len = 0;
+ file_ok = 1;
+ ino = (ext2_ino_t)VOIDPTR_TO_INT(dnode_getkey(n));
+ if (ino == EXT2_BAD_INO)
+ continue;
+
+ /*
+ * Find all of the inodes which share blocks with this
+ * one. First we find all of the duplicate blocks
+ * belonging to this inode, and then search each block
+ * get the list of inodes, and merge them together.
+ */
+ for (s = p->block_list; s; s = s->next) {
+ m = dict_lookup(&blk_dict, INT_TO_VOIDPTR(s->block));
+ if (!m)
+ continue; /* Should never happen... */
+ q = (struct dup_block *) dnode_get(m);
+ if (q->num_bad > 1)
+ file_ok = 0;
+ if (check_if_fs_block(ctx, s->block)) {
+ file_ok = 0;
+ meta_data = 1;
+ }
+
+ /*
+ * Add all inodes used by this block to the
+ * shared[] --- which is a unique list, so
+ * if an inode is already in shared[], don't
+ * add it again.
+ */
+ for (r = q->inode_list; r; r = r->next) {
+ if (r->inode == ino)
+ continue;
+ for (i = 0; i < shared_len; i++)
+ if (shared[i] == r->inode)
+ break;
+ if (i == shared_len) {
+ shared[shared_len++] = r->inode;
+ }
+ }
+ }
+
+ /*
+ * Report the inode that we are working on
+ */
+ pctx.inode = &p->inode;
+ pctx.ino = ino;
+ pctx.dir = p->dir;
+ pctx.blkcount = p->num_dupblocks;
+ pctx.num = meta_data ? shared_len+1 : shared_len;
+ fix_problem(ctx, PR_1D_DUP_FILE, &pctx);
+ pctx.blkcount = 0;
+ pctx.num = 0;
+
+ if (meta_data)
+ fix_problem(ctx, PR_1D_SHARE_METADATA, &pctx);
+
+ for (i = 0; i < shared_len; i++) {
+ m = dict_lookup(&ino_dict, INT_TO_VOIDPTR(shared[i]));
+ if (!m)
+ continue; /* should never happen */
+ t = (struct dup_inode *) dnode_get(m);
+ /*
+ * Report the inode that we are sharing with
+ */
+ pctx.inode = &t->inode;
+ pctx.ino = shared[i];
+ pctx.dir = t->dir;
+ fix_problem(ctx, PR_1D_DUP_FILE_LIST, &pctx);
+ }
+ if (file_ok) {
+ fix_problem(ctx, PR_1D_DUP_BLOCKS_DEALT, &pctx);
+ continue;
+ }
+ if (fix_problem(ctx, PR_1D_CLONE_QUESTION, &pctx)) {
+ pctx.errcode = clone_file(ctx, ino, p, block_buf);
+ if (pctx.errcode)
+ fix_problem(ctx, PR_1D_CLONE_ERROR, &pctx);
+ else
+ continue;
+ }
+ if (fix_problem(ctx, PR_1D_DELETE_QUESTION, &pctx))
+ delete_file(ctx, ino, p, block_buf);
+ else
+ ext2fs_unmark_valid(fs);
+ }
+ ext2fs_free_mem(&shared);
+}
+
+/*
+ * Drop the refcount on the dup_block structure, and clear the entry
+ * in the block_dup_map if appropriate.
+ */
+static void decrement_badcount(e2fsck_t ctx, blk_t block, struct dup_block *p)
+{
+ p->num_bad--;
+ if (p->num_bad <= 0 ||
+ (p->num_bad == 1 && !check_if_fs_block(ctx, block)))
+ ext2fs_unmark_block_bitmap(ctx->block_dup_map, block);
+}
+
+static int delete_file_block(ext2_filsys fs,
+ blk_t *block_nr,
+ e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
+ blk_t ref_block EXT2FS_ATTR((unused)),
+ int ref_offset EXT2FS_ATTR((unused)),
+ void *priv_data)
+{
+ struct process_block_struct_1b *pb;
+ struct dup_block *p;
+ dnode_t *n;
+ e2fsck_t ctx;
+
+ pb = (struct process_block_struct_1b *) priv_data;
+ ctx = pb->ctx;
+
+ if (HOLE_BLKADDR(*block_nr))
+ return 0;
+
+ if (ext2fs_test_block_bitmap(ctx->block_dup_map, *block_nr)) {
+ n = dict_lookup(&blk_dict, INT_TO_VOIDPTR(*block_nr));
+ if (n) {
+ p = (struct dup_block *) dnode_get(n);
+ decrement_badcount(ctx, *block_nr, p);
+ } else
+ com_err("delete_file_block", 0,
+ _("internal error; can't find dup_blk for %d\n"),
+ *block_nr);
+ } else {
+ ext2fs_unmark_block_bitmap(ctx->block_found_map, *block_nr);
+ ext2fs_block_alloc_stats(fs, *block_nr, -1);
+ }
+
+ return 0;
+}
+
+static void delete_file(e2fsck_t ctx, ext2_ino_t ino,
+ struct dup_inode *dp, char* block_buf)
+{
+ ext2_filsys fs = ctx->fs;
+ struct process_block_struct_1b pb;
+ struct ext2_inode inode;
+ struct problem_context pctx;
+ unsigned int count;
+
+ clear_problem_context(&pctx);
+ pctx.ino = pb.ino = ino;
+ pb.dup_blocks = dp->num_dupblocks;
+ pb.ctx = ctx;
+ pctx.str = "delete_file";
+
+ e2fsck_read_inode(ctx, ino, &inode, "delete_file");
+ if (ext2fs_inode_has_valid_blocks(&inode))
+ pctx.errcode = ext2fs_block_iterate2(fs, ino, 0, block_buf,
+ delete_file_block, &pb);
+ if (pctx.errcode)
+ fix_problem(ctx, PR_1B_BLOCK_ITERATE, &pctx);
+ ext2fs_unmark_inode_bitmap(ctx->inode_used_map, ino);
+ ext2fs_unmark_inode_bitmap(ctx->inode_dir_map, ino);
+ if (ctx->inode_bad_map)
+ ext2fs_unmark_inode_bitmap(ctx->inode_bad_map, ino);
+ ext2fs_inode_alloc_stats2(fs, ino, -1, LINUX_S_ISDIR(inode.i_mode));
+
+ /* Inode may have changed by block_iterate, so reread it */
+ e2fsck_read_inode(ctx, ino, &inode, "delete_file");
+ inode.i_links_count = 0;
+ inode.i_dtime = time(0);
+ if (inode.i_file_acl &&
+ (fs->super->s_feature_compat & EXT2_FEATURE_COMPAT_EXT_ATTR)) {
+ count = 1;
+ pctx.errcode = ext2fs_adjust_ea_refcount(fs, inode.i_file_acl,
+ block_buf, -1, &count);
+ if (pctx.errcode == EXT2_ET_BAD_EA_BLOCK_NUM) {
+ pctx.errcode = 0;
+ count = 1;
+ }
+ if (pctx.errcode) {
+ pctx.blk = inode.i_file_acl;
+ fix_problem(ctx, PR_1B_ADJ_EA_REFCOUNT, &pctx);
+ }
+ /*
+ * If the count is zero, then arrange to have the
+ * block deleted. If the block is in the block_dup_map,
+ * also call delete_file_block since it will take care
+ * of keeping the accounting straight.
+ */
+ if ((count == 0) ||
+ ext2fs_test_block_bitmap(ctx->block_dup_map,
+ inode.i_file_acl))
+ delete_file_block(fs, &inode.i_file_acl,
+ BLOCK_COUNT_EXTATTR, 0, 0, &pb);
+ }
+ e2fsck_write_inode(ctx, ino, &inode, "delete_file");
+}
+
+struct clone_struct {
+ errcode_t errcode;
+ ext2_ino_t dir;
+ char *buf;
+ e2fsck_t ctx;
+};
+
+static int clone_file_block(ext2_filsys fs,
+ blk_t *block_nr,
+ e2_blkcnt_t blockcnt,
+ blk_t ref_block EXT2FS_ATTR((unused)),
+ int ref_offset EXT2FS_ATTR((unused)),
+ void *priv_data)
+{
+ struct dup_block *p;
+ blk_t new_block;
+ errcode_t retval;
+ struct clone_struct *cs = (struct clone_struct *) priv_data;
+ dnode_t *n;
+ e2fsck_t ctx;
+
+ ctx = cs->ctx;
+
+ if (HOLE_BLKADDR(*block_nr))
+ return 0;
+
+ if (ext2fs_test_block_bitmap(ctx->block_dup_map, *block_nr)) {
+ n = dict_lookup(&blk_dict, INT_TO_VOIDPTR(*block_nr));
+ if (n) {
+ p = (struct dup_block *) dnode_get(n);
+ retval = ext2fs_new_block(fs, 0, ctx->block_found_map,
+ &new_block);
+ if (retval) {
+ cs->errcode = retval;
+ return BLOCK_ABORT;
+ }
+ if (cs->dir && (blockcnt >= 0)) {
+ retval = ext2fs_set_dir_block(fs->dblist,
+ cs->dir, new_block, blockcnt);
+ if (retval) {
+ cs->errcode = retval;
+ return BLOCK_ABORT;
+ }
+ }
+#if 0
+ printf("Cloning block %u to %u\n", *block_nr,
+ new_block);
+#endif
+ retval = io_channel_read_blk(fs->io, *block_nr, 1,
+ cs->buf);
+ if (retval) {
+ cs->errcode = retval;
+ return BLOCK_ABORT;
+ }
+ retval = io_channel_write_blk(fs->io, new_block, 1,
+ cs->buf);
+ if (retval) {
+ cs->errcode = retval;
+ return BLOCK_ABORT;
+ }
+ decrement_badcount(ctx, *block_nr, p);
+ *block_nr = new_block;
+ ext2fs_mark_block_bitmap(ctx->block_found_map,
+ new_block);
+ ext2fs_mark_block_bitmap(fs->block_map, new_block);
+ return BLOCK_CHANGED;
+ } else
+ com_err("clone_file_block", 0,
+ _("internal error; can't find dup_blk for %d\n"),
+ *block_nr);
+ }
+ return 0;
+}
+
+static int clone_file(e2fsck_t ctx, ext2_ino_t ino,
+ struct dup_inode *dp, char* block_buf)
+{
+ ext2_filsys fs = ctx->fs;
+ errcode_t retval;
+ struct clone_struct cs;
+ struct problem_context pctx;
+ blk_t blk;
+ dnode_t *n;
+ struct inode_el *ino_el;
+ struct dup_block *db;
+ struct dup_inode *di;
+
+ clear_problem_context(&pctx);
+ cs.errcode = 0;
+ cs.dir = 0;
+ cs.ctx = ctx;
+ retval = ext2fs_get_mem(fs->blocksize, &cs.buf);
+ if (retval)
+ return retval;
+
+ if (ext2fs_test_inode_bitmap(ctx->inode_dir_map, ino))
+ cs.dir = ino;
+
+ pctx.ino = ino;
+ pctx.str = "clone_file";
+ if (ext2fs_inode_has_valid_blocks(&dp->inode))
+ pctx.errcode = ext2fs_block_iterate2(fs, ino, 0, block_buf,
+ clone_file_block, &cs);
+ ext2fs_mark_bb_dirty(fs);
+ if (pctx.errcode) {
+ fix_problem(ctx, PR_1B_BLOCK_ITERATE, &pctx);
+ retval = pctx.errcode;
+ goto errout;
+ }
+ if (cs.errcode) {
+ com_err("clone_file", cs.errcode,
+ _("returned from clone_file_block"));
+ retval = cs.errcode;
+ goto errout;
+ }
+ /* The inode may have changed on disk, so we have to re-read it */
+ e2fsck_read_inode(ctx, ino, &dp->inode, "clone file EA");
+ blk = dp->inode.i_file_acl;
+ if (blk && (clone_file_block(fs, &dp->inode.i_file_acl,
+ BLOCK_COUNT_EXTATTR, 0, 0, &cs) ==
+ BLOCK_CHANGED)) {
+ e2fsck_write_inode(ctx, ino, &dp->inode, "clone file EA");
+ /*
+ * If we cloned the EA block, find all other inodes
+ * which refered to that EA block, and modify
+ * them to point to the new EA block.
+ */
+ n = dict_lookup(&blk_dict, INT_TO_VOIDPTR(blk));
+ db = (struct dup_block *) dnode_get(n);
+ for (ino_el = db->inode_list; ino_el; ino_el = ino_el->next) {
+ if (ino_el->inode == ino)
+ continue;
+ n = dict_lookup(&ino_dict, INT_TO_VOIDPTR(ino_el->inode));
+ di = (struct dup_inode *) dnode_get(n);
+ if (di->inode.i_file_acl == blk) {
+ di->inode.i_file_acl = dp->inode.i_file_acl;
+ e2fsck_write_inode(ctx, ino_el->inode,
+ &di->inode, "clone file EA");
+ decrement_badcount(ctx, blk, db);
+ }
+ }
+ }
+ retval = 0;
+errout:
+ ext2fs_free_mem(&cs.buf);
+ return retval;
+}
+
+/*
+ * This routine returns 1 if a block overlaps with one of the superblocks,
+ * group descriptors, inode bitmaps, or block bitmaps.
+ */
+static int check_if_fs_block(e2fsck_t ctx, blk_t test_block)
+{
+ ext2_filsys fs = ctx->fs;
+ blk_t block;
+ dgrp_t i;
+
+ block = fs->super->s_first_data_block;
+ for (i = 0; i < fs->group_desc_count; i++) {
+
+ /* Check superblocks/block group descriptros */
+ if (ext2fs_bg_has_super(fs, i)) {
+ if (test_block >= block &&
+ (test_block <= block + fs->desc_blocks))
+ return 1;
+ }
+
+ /* Check the inode table */
+ if ((fs->group_desc[i].bg_inode_table) &&
+ (test_block >= fs->group_desc[i].bg_inode_table) &&
+ (test_block < (fs->group_desc[i].bg_inode_table +
+ fs->inode_blocks_per_group)))
+ return 1;
+
+ /* Check the bitmap blocks */
+ if ((test_block == fs->group_desc[i].bg_block_bitmap) ||
+ (test_block == fs->group_desc[i].bg_inode_bitmap))
+ return 1;
+
+ block += fs->super->s_blocks_per_group;
+ }
+ return 0;
+}
+/*
+ * pass2.c --- check directory structure
+ *
+ * Copyright (C) 1993, 1994, 1995, 1996, 1997 Theodore Ts'o
+ *
+ * %Begin-Header%
+ * This file may be redistributed under the terms of the GNU Public
+ * License.
+ * %End-Header%
+ *
+ * Pass 2 of e2fsck iterates through all active directory inodes, and
+ * applies to following tests to each directory entry in the directory
+ * blocks in the inodes:
+ *
+ * - The length of the directory entry (rec_len) should be at
+ * least 8 bytes, and no more than the remaining space
+ * left in the directory block.
+ * - The length of the name in the directory entry (name_len)
+ * should be less than (rec_len - 8).
+ * - The inode number in the directory entry should be within
+ * legal bounds.
+ * - The inode number should refer to a in-use inode.
+ * - The first entry should be '.', and its inode should be
+ * the inode of the directory.
+ * - The second entry should be '..'.
+ *
+ * To minimize disk seek time, the directory blocks are processed in
+ * sorted order of block numbers.
+ *
+ * Pass 2 also collects the following information:
+ * - The inode numbers of the subdirectories for each directory.
+ *
+ * Pass 2 relies on the following information from previous passes:
+ * - The directory information collected in pass 1.
+ * - The inode_used_map bitmap
+ * - The inode_bad_map bitmap
+ * - The inode_dir_map bitmap
+ *
+ * Pass 2 frees the following data structures
+ * - The inode_bad_map bitmap
+ * - The inode_reg_map bitmap
+ */
+
+/* #define DX_DEBUG */
+
+/*
+ * Keeps track of how many times an inode is referenced.
+ */
+static void deallocate_inode(e2fsck_t ctx, ext2_ino_t ino, char* block_buf);
+static int check_dir_block(ext2_filsys fs,
+ struct ext2_db_entry *dir_blocks_info,
+ void *priv_data);
+static int allocate_dir_block(e2fsck_t ctx,
+ struct ext2_db_entry *dir_blocks_info,
+ char *buf, struct problem_context *pctx);
+static int update_dir_block(ext2_filsys fs,
+ blk_t *block_nr,
+ e2_blkcnt_t blockcnt,
+ blk_t ref_block,
+ int ref_offset,
+ void *priv_data);
+static void clear_htree(e2fsck_t ctx, ext2_ino_t ino);
+static int htree_depth(struct dx_dir_info *dx_dir,
+ struct dx_dirblock_info *dx_db);
+static EXT2_QSORT_TYPE special_dir_block_cmp(const void *a, const void *b);
+
+struct check_dir_struct {
+ char *buf;
+ struct problem_context pctx;
+ int count, max;
+ e2fsck_t ctx;
+};
+
+void e2fsck_pass2(e2fsck_t ctx)
+{
+ struct ext2_super_block *sb = ctx->fs->super;
+ struct problem_context pctx;
+ ext2_filsys fs = ctx->fs;
+ char *buf;
+#ifdef RESOURCE_TRACK
+ struct resource_track rtrack;
+#endif
+ struct dir_info *dir;
+ struct check_dir_struct cd;
+ struct dx_dir_info *dx_dir;
+ struct dx_dirblock_info *dx_db, *dx_parent;
+ int b;
+ int i, depth;
+ problem_t code;
+ int bad_dir;
+
+#ifdef RESOURCE_TRACK
+ init_resource_track(&rtrack);
+#endif
+
+ clear_problem_context(&cd.pctx);
+
+#ifdef MTRACE
+ mtrace_print("Pass 2");
+#endif
+
+ if (!(ctx->options & E2F_OPT_PREEN))
+ fix_problem(ctx, PR_2_PASS_HEADER, &cd.pctx);
+
+ cd.pctx.errcode = ext2fs_create_icount2(fs, EXT2_ICOUNT_OPT_INCREMENT,
+ 0, ctx->inode_link_info,
+ &ctx->inode_count);
+ if (cd.pctx.errcode) {
+ fix_problem(ctx, PR_2_ALLOCATE_ICOUNT, &cd.pctx);
+ ctx->flags |= E2F_FLAG_ABORT;
+ return;
+ }
+ buf = (char *) e2fsck_allocate_memory(ctx, 2*fs->blocksize,
+ "directory scan buffer");
+
+ /*
+ * Set up the parent pointer for the root directory, if
+ * present. (If the root directory is not present, we will
+ * create it in pass 3.)
+ */
+ dir = e2fsck_get_dir_info(ctx, EXT2_ROOT_INO);
+ if (dir)
+ dir->parent = EXT2_ROOT_INO;
+
+ cd.buf = buf;
+ cd.ctx = ctx;
+ cd.count = 1;
+ cd.max = ext2fs_dblist_count(fs->dblist);
+
+ if (ctx->progress)
+ (void) (ctx->progress)(ctx, 2, 0, cd.max);
+
+ if (fs->super->s_feature_compat & EXT2_FEATURE_COMPAT_DIR_INDEX)
+ ext2fs_dblist_sort(fs->dblist, special_dir_block_cmp);
+
+ cd.pctx.errcode = ext2fs_dblist_iterate(fs->dblist, check_dir_block,
+ &cd);
+ if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
+ return;
+ if (cd.pctx.errcode) {
+ fix_problem(ctx, PR_2_DBLIST_ITERATE, &cd.pctx);
+ ctx->flags |= E2F_FLAG_ABORT;
+ return;
+ }
+
+#ifdef ENABLE_HTREE
+ for (i=0; (dx_dir = e2fsck_dx_dir_info_iter(ctx, &i)) != 0;) {
+ if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
+ return;
+ if (dx_dir->numblocks == 0)
+ continue;
+ clear_problem_context(&pctx);
+ bad_dir = 0;
+ pctx.dir = dx_dir->ino;
+ dx_db = dx_dir->dx_block;
+ if (dx_db->flags & DX_FLAG_REFERENCED)
+ dx_db->flags |= DX_FLAG_DUP_REF;
+ else
+ dx_db->flags |= DX_FLAG_REFERENCED;
+ /*
+ * Find all of the first and last leaf blocks, and
+ * update their parent's min and max hash values
+ */
+ for (b=0, dx_db = dx_dir->dx_block;
+ b < dx_dir->numblocks;
+ b++, dx_db++) {
+ if ((dx_db->type != DX_DIRBLOCK_LEAF) ||
+ !(dx_db->flags & (DX_FLAG_FIRST | DX_FLAG_LAST)))
+ continue;
+ dx_parent = &dx_dir->dx_block[dx_db->parent];
+ /*
+ * XXX Make sure dx_parent->min_hash > dx_db->min_hash
+ */
+ if (dx_db->flags & DX_FLAG_FIRST)
+ dx_parent->min_hash = dx_db->min_hash;
+ /*
+ * XXX Make sure dx_parent->max_hash < dx_db->max_hash
+ */
+ if (dx_db->flags & DX_FLAG_LAST)
+ dx_parent->max_hash = dx_db->max_hash;
+ }
+
+ for (b=0, dx_db = dx_dir->dx_block;
+ b < dx_dir->numblocks;
+ b++, dx_db++) {
+ pctx.blkcount = b;
+ pctx.group = dx_db->parent;
+ code = 0;
+ if (!(dx_db->flags & DX_FLAG_FIRST) &&
+ (dx_db->min_hash < dx_db->node_min_hash)) {
+ pctx.blk = dx_db->min_hash;
+ pctx.blk2 = dx_db->node_min_hash;
+ code = PR_2_HTREE_MIN_HASH;
+ fix_problem(ctx, code, &pctx);
+ bad_dir++;
+ }
+ if (dx_db->type == DX_DIRBLOCK_LEAF) {
+ depth = htree_depth(dx_dir, dx_db);
+ if (depth != dx_dir->depth) {
+ code = PR_2_HTREE_BAD_DEPTH;
+ fix_problem(ctx, code, &pctx);
+ bad_dir++;
+ }
+ }
+ /*
+ * This test doesn't apply for the root block
+ * at block #0
+ */
+ if (b &&
+ (dx_db->max_hash > dx_db->node_max_hash)) {
+ pctx.blk = dx_db->max_hash;
+ pctx.blk2 = dx_db->node_max_hash;
+ code = PR_2_HTREE_MAX_HASH;
+ fix_problem(ctx, code, &pctx);
+ bad_dir++;
+ }
+ if (!(dx_db->flags & DX_FLAG_REFERENCED)) {
+ code = PR_2_HTREE_NOTREF;
+ fix_problem(ctx, code, &pctx);
+ bad_dir++;
+ } else if (dx_db->flags & DX_FLAG_DUP_REF) {
+ code = PR_2_HTREE_DUPREF;
+ fix_problem(ctx, code, &pctx);
+ bad_dir++;
+ }
+ if (code == 0)
+ continue;
+ }
+ if (bad_dir && fix_problem(ctx, PR_2_HTREE_CLEAR, &pctx)) {
+ clear_htree(ctx, dx_dir->ino);
+ dx_dir->numblocks = 0;
+ }
+ }
+#endif
+ ext2fs_free_mem(&buf);
+ ext2fs_free_dblist(fs->dblist);
+
+ if (ctx->inode_bad_map) {
+ ext2fs_free_inode_bitmap(ctx->inode_bad_map);
+ ctx->inode_bad_map = 0;
+ }
+ if (ctx->inode_reg_map) {
+ ext2fs_free_inode_bitmap(ctx->inode_reg_map);
+ ctx->inode_reg_map = 0;
+ }
+
+ clear_problem_context(&pctx);
+ if (ctx->large_files) {
+ if (!(sb->s_feature_ro_compat &
+ EXT2_FEATURE_RO_COMPAT_LARGE_FILE) &&
+ fix_problem(ctx, PR_2_FEATURE_LARGE_FILES, &pctx)) {
+ sb->s_feature_ro_compat |=
+ EXT2_FEATURE_RO_COMPAT_LARGE_FILE;
+ ext2fs_mark_super_dirty(fs);
+ }
+ if (sb->s_rev_level == EXT2_GOOD_OLD_REV &&
+ fix_problem(ctx, PR_1_FS_REV_LEVEL, &pctx)) {
+ ext2fs_update_dynamic_rev(fs);
+ ext2fs_mark_super_dirty(fs);
+ }
+ } else if (!ctx->large_files &&
+ (sb->s_feature_ro_compat &
+ EXT2_FEATURE_RO_COMPAT_LARGE_FILE)) {
+ if (fs->flags & EXT2_FLAG_RW) {
+ sb->s_feature_ro_compat &=
+ ~EXT2_FEATURE_RO_COMPAT_LARGE_FILE;
+ ext2fs_mark_super_dirty(fs);
+ }
+ }
+
+#ifdef RESOURCE_TRACK
+ if (ctx->options & E2F_OPT_TIME2) {
+ e2fsck_clear_progbar(ctx);
+ print_resource_track(_("Pass 2"), &rtrack);
+ }
+#endif
+}
+
+#define MAX_DEPTH 32000
+static int htree_depth(struct dx_dir_info *dx_dir,
+ struct dx_dirblock_info *dx_db)
+{
+ int depth = 0;
+
+ while (dx_db->type != DX_DIRBLOCK_ROOT && depth < MAX_DEPTH) {
+ dx_db = &dx_dir->dx_block[dx_db->parent];
+ depth++;
+ }
+ return depth;
+}
+
+static int dict_de_cmp(const void *a, const void *b)
+{
+ const struct ext2_dir_entry *de_a, *de_b;
+ int a_len, b_len;
+
+ de_a = (const struct ext2_dir_entry *) a;
+ a_len = de_a->name_len & 0xFF;
+ de_b = (const struct ext2_dir_entry *) b;
+ b_len = de_b->name_len & 0xFF;
+
+ if (a_len != b_len)
+ return (a_len - b_len);
+
+ return strncmp(de_a->name, de_b->name, a_len);
+}
+
+/*
+ * This is special sort function that makes sure that directory blocks
+ * with a dirblock of zero are sorted to the beginning of the list.
+ * This guarantees that the root node of the htree directories are
+ * processed first, so we know what hash version to use.
+ */
+static EXT2_QSORT_TYPE special_dir_block_cmp(const void *a, const void *b)
+{
+ const struct ext2_db_entry *db_a =
+ (const struct ext2_db_entry *) a;
+ const struct ext2_db_entry *db_b =
+ (const struct ext2_db_entry *) b;
+
+ if (db_a->blockcnt && !db_b->blockcnt)
+ return 1;
+
+ if (!db_a->blockcnt && db_b->blockcnt)
+ return -1;
+
+ if (db_a->blk != db_b->blk)
+ return (int) (db_a->blk - db_b->blk);
+
+ if (db_a->ino != db_b->ino)
+ return (int) (db_a->ino - db_b->ino);
+
+ return (int) (db_a->blockcnt - db_b->blockcnt);
+}
+
+
+/*
+ * Make sure the first entry in the directory is '.', and that the
+ * directory entry is sane.
+ */
+static int check_dot(e2fsck_t ctx,
+ struct ext2_dir_entry *dirent,
+ ext2_ino_t ino, struct problem_context *pctx)
+{
+ struct ext2_dir_entry *nextdir;
+ int status = 0;
+ int created = 0;
+ int new_len;
+ int problem = 0;
+
+ if (!dirent->inode)
+ problem = PR_2_MISSING_DOT;
+ else if (((dirent->name_len & 0xFF) != 1) ||
+ (dirent->name[0] != '.'))
+ problem = PR_2_1ST_NOT_DOT;
+ else if (dirent->name[1] != '\0')
+ problem = PR_2_DOT_NULL_TERM;
+
+ if (problem) {
+ if (fix_problem(ctx, problem, pctx)) {
+ if (dirent->rec_len < 12)
+ dirent->rec_len = 12;
+ dirent->inode = ino;
+ dirent->name_len = 1;
+ dirent->name[0] = '.';
+ dirent->name[1] = '\0';
+ status = 1;
+ created = 1;
+ }
+ }
+ if (dirent->inode != ino) {
+ if (fix_problem(ctx, PR_2_BAD_INODE_DOT, pctx)) {
+ dirent->inode = ino;
+ status = 1;
+ }
+ }
+ if (dirent->rec_len > 12) {
+ new_len = dirent->rec_len - 12;
+ if (new_len > 12) {
+ if (created ||
+ fix_problem(ctx, PR_2_SPLIT_DOT, pctx)) {
+ nextdir = (struct ext2_dir_entry *)
+ ((char *) dirent + 12);
+ dirent->rec_len = 12;
+ nextdir->rec_len = new_len;
+ nextdir->inode = 0;
+ nextdir->name_len = 0;
+ status = 1;
+ }
+ }
+ }
+ return status;
+}
+
+/*
+ * Make sure the second entry in the directory is '..', and that the
+ * directory entry is sane. We do not check the inode number of '..'
+ * here; this gets done in pass 3.
+ */
+static int check_dotdot(e2fsck_t ctx,
+ struct ext2_dir_entry *dirent,
+ struct dir_info *dir, struct problem_context *pctx)
+{
+ int problem = 0;
+
+ if (!dirent->inode)
+ problem = PR_2_MISSING_DOT_DOT;
+ else if (((dirent->name_len & 0xFF) != 2) ||
+ (dirent->name[0] != '.') ||
+ (dirent->name[1] != '.'))
+ problem = PR_2_2ND_NOT_DOT_DOT;
+ else if (dirent->name[2] != '\0')
+ problem = PR_2_DOT_DOT_NULL_TERM;
+
+ if (problem) {
+ if (fix_problem(ctx, problem, pctx)) {
+ if (dirent->rec_len < 12)
+ dirent->rec_len = 12;
+ /*
+ * Note: we don't have the parent inode just
+ * yet, so we will fill it in with the root
+ * inode. This will get fixed in pass 3.
+ */
+ dirent->inode = EXT2_ROOT_INO;
+ dirent->name_len = 2;
+ dirent->name[0] = '.';
+ dirent->name[1] = '.';
+ dirent->name[2] = '\0';
+ return 1;
+ }
+ return 0;
+ }
+ dir->dotdot = dirent->inode;
+ return 0;
+}
+
+/*
+ * Check to make sure a directory entry doesn't contain any illegal
+ * characters.
+ */
+static int check_name(e2fsck_t ctx,
+ struct ext2_dir_entry *dirent,
+ ext2_ino_t dir_ino EXT2FS_ATTR((unused)),
+ struct problem_context *pctx)
+{
+ int i;
+ int fixup = -1;
+ int ret = 0;
+
+ for ( i = 0; i < (dirent->name_len & 0xFF); i++) {
+ if (dirent->name[i] == '/' || dirent->name[i] == '\0') {
+ if (fixup < 0) {
+ fixup = fix_problem(ctx, PR_2_BAD_NAME, pctx);
+ }
+ if (fixup) {
+ dirent->name[i] = '.';
+ ret = 1;
+ }
+ }
+ }
+ return ret;
+}
+
+/*
+ * Check the directory filetype (if present)
+ */
+static _INLINE_ int check_filetype(e2fsck_t ctx,
+ struct ext2_dir_entry *dirent,
+ ext2_ino_t dir_ino EXT2FS_ATTR((unused)),
+ struct problem_context *pctx)
+{
+ int filetype = dirent->name_len >> 8;
+ int should_be = EXT2_FT_UNKNOWN;
+ struct ext2_inode inode;
+
+ if (!(ctx->fs->super->s_feature_incompat &
+ EXT2_FEATURE_INCOMPAT_FILETYPE)) {
+ if (filetype == 0 ||
+ !fix_problem(ctx, PR_2_CLEAR_FILETYPE, pctx))
+ return 0;
+ dirent->name_len = dirent->name_len & 0xFF;
+ return 1;
+ }
+
+ if (ext2fs_test_inode_bitmap(ctx->inode_dir_map, dirent->inode)) {
+ should_be = EXT2_FT_DIR;
+ } else if (ext2fs_test_inode_bitmap(ctx->inode_reg_map,
+ dirent->inode)) {
+ should_be = EXT2_FT_REG_FILE;
+ } else if (ctx->inode_bad_map &&
+ ext2fs_test_inode_bitmap(ctx->inode_bad_map,
+ dirent->inode))
+ should_be = 0;
+ else {
+ e2fsck_read_inode(ctx, dirent->inode, &inode,
+ "check_filetype");
+ should_be = ext2_file_type(inode.i_mode);
+ }
+ if (filetype == should_be)
+ return 0;
+ pctx->num = should_be;
+
+ if (fix_problem(ctx, filetype ? PR_2_BAD_FILETYPE : PR_2_SET_FILETYPE,
+ pctx) == 0)
+ return 0;
+
+ dirent->name_len = (dirent->name_len & 0xFF) | should_be << 8;
+ return 1;
+}
+
+#ifdef ENABLE_HTREE
+static void parse_int_node(ext2_filsys fs,
+ struct ext2_db_entry *db,
+ struct check_dir_struct *cd,
+ struct dx_dir_info *dx_dir,
+ char *block_buf)
+{
+ struct ext2_dx_root_info *root;
+ struct ext2_dx_entry *ent;
+ struct ext2_dx_countlimit *limit;
+ struct dx_dirblock_info *dx_db;
+ int i, expect_limit, count;
+ blk_t blk;
+ ext2_dirhash_t min_hash = 0xffffffff;
+ ext2_dirhash_t max_hash = 0;
+ ext2_dirhash_t hash = 0, prev_hash;
+
+ if (db->blockcnt == 0) {
+ root = (struct ext2_dx_root_info *) (block_buf + 24);
+
+#ifdef DX_DEBUG
+ printf("Root node dump:\n");
+ printf("\t Reserved zero: %d\n", root->reserved_zero);
+ printf("\t Hash Version: %d\n", root->hash_version);
+ printf("\t Info length: %d\n", root->info_length);
+ printf("\t Indirect levels: %d\n", root->indirect_levels);
+ printf("\t Flags: %d\n", root->unused_flags);
+#endif
+
+ ent = (struct ext2_dx_entry *) (block_buf + 24 + root->info_length);
+ } else {
+ ent = (struct ext2_dx_entry *) (block_buf+8);
+ }
+ limit = (struct ext2_dx_countlimit *) ent;
+
+#ifdef DX_DEBUG
+ printf("Number of entries (count): %d\n",
+ ext2fs_le16_to_cpu(limit->count));
+ printf("Number of entries (limit): %d\n",
+ ext2fs_le16_to_cpu(limit->limit));
+#endif
+
+ count = ext2fs_le16_to_cpu(limit->count);
+ expect_limit = (fs->blocksize - ((char *) ent - block_buf)) /
+ sizeof(struct ext2_dx_entry);
+ if (ext2fs_le16_to_cpu(limit->limit) != expect_limit) {
+ cd->pctx.num = ext2fs_le16_to_cpu(limit->limit);
+ if (fix_problem(cd->ctx, PR_2_HTREE_BAD_LIMIT, &cd->pctx))
+ goto clear_and_exit;
+ }
+ if (count > expect_limit) {
+ cd->pctx.num = count;
+ if (fix_problem(cd->ctx, PR_2_HTREE_BAD_COUNT, &cd->pctx))
+ goto clear_and_exit;
+ count = expect_limit;
+ }
+
+ for (i=0; i < count; i++) {
+ prev_hash = hash;
+ hash = i ? (ext2fs_le32_to_cpu(ent[i].hash) & ~1) : 0;
+#ifdef DX_DEBUG
+ printf("Entry #%d: Hash 0x%08x, block %d\n", i,
+ hash, ext2fs_le32_to_cpu(ent[i].block));
+#endif
+ blk = ext2fs_le32_to_cpu(ent[i].block) & 0x0ffffff;
+ /* Check to make sure the block is valid */
+ if (blk > (blk_t) dx_dir->numblocks) {
+ cd->pctx.blk = blk;
+ if (fix_problem(cd->ctx, PR_2_HTREE_BADBLK,
+ &cd->pctx))
+ goto clear_and_exit;
+ }
+ if (hash < prev_hash &&
+ fix_problem(cd->ctx, PR_2_HTREE_HASH_ORDER, &cd->pctx))
+ goto clear_and_exit;
+ dx_db = &dx_dir->dx_block[blk];
+ if (dx_db->flags & DX_FLAG_REFERENCED) {
+ dx_db->flags |= DX_FLAG_DUP_REF;
+ } else {
+ dx_db->flags |= DX_FLAG_REFERENCED;
+ dx_db->parent = db->blockcnt;
+ }
+ if (hash < min_hash)
+ min_hash = hash;
+ if (hash > max_hash)
+ max_hash = hash;
+ dx_db->node_min_hash = hash;
+ if ((i+1) < count)
+ dx_db->node_max_hash =
+ ext2fs_le32_to_cpu(ent[i+1].hash) & ~1;
+ else {
+ dx_db->node_max_hash = 0xfffffffe;
+ dx_db->flags |= DX_FLAG_LAST;
+ }
+ if (i == 0)
+ dx_db->flags |= DX_FLAG_FIRST;
+ }
+#ifdef DX_DEBUG
+ printf("Blockcnt = %d, min hash 0x%08x, max hash 0x%08x\n",
+ db->blockcnt, min_hash, max_hash);
+#endif
+ dx_db = &dx_dir->dx_block[db->blockcnt];
+ dx_db->min_hash = min_hash;
+ dx_db->max_hash = max_hash;
+ return;
+
+clear_and_exit:
+ clear_htree(cd->ctx, cd->pctx.ino);
+ dx_dir->numblocks = 0;
+}
+#endif /* ENABLE_HTREE */
+
+/*
+ * Given a busted directory, try to salvage it somehow.
+ *
+ */
+static void salvage_directory(ext2_filsys fs,
+ struct ext2_dir_entry *dirent,
+ struct ext2_dir_entry *prev,
+ unsigned int *offset)
+{
+ char *cp = (char *) dirent;
+ int left = fs->blocksize - *offset - dirent->rec_len;
+ int name_len = dirent->name_len & 0xFF;
+
+ /*
+ * Special case of directory entry of size 8: copy what's left
+ * of the directory block up to cover up the invalid hole.
+ */
+ if ((left >= 12) && (dirent->rec_len == 8)) {
+ memmove(cp, cp+8, left);
+ memset(cp + left, 0, 8);
+ return;
+ }
+ /*
+ * If the directory entry overruns the end of the directory
+ * block, and the name is small enough to fit, then adjust the
+ * record length.
+ */
+ if ((left < 0) &&
+ (name_len + 8 <= dirent->rec_len + left) &&
+ dirent->inode <= fs->super->s_inodes_count &&
+ strnlen(dirent->name, name_len) == name_len) {
+ dirent->rec_len += left;
+ return;
+ }
+ /*
+ * If the directory entry is a multiple of four, so it is
+ * valid, let the previous directory entry absorb the invalid
+ * one.
+ */
+ if (prev && dirent->rec_len && (dirent->rec_len % 4) == 0) {
+ prev->rec_len += dirent->rec_len;
+ *offset += dirent->rec_len;
+ return;
+ }
+ /*
+ * Default salvage method --- kill all of the directory
+ * entries for the rest of the block. We will either try to
+ * absorb it into the previous directory entry, or create a
+ * new empty directory entry the rest of the directory block.
+ */
+ if (prev) {
+ prev->rec_len += fs->blocksize - *offset;
+ *offset = fs->blocksize;
+ } else {
+ dirent->rec_len = fs->blocksize - *offset;
+ dirent->name_len = 0;
+ dirent->inode = 0;
+ }
+}
+
+static int check_dir_block(ext2_filsys fs,
+ struct ext2_db_entry *db,
+ void *priv_data)
+{
+ struct dir_info *subdir, *dir;
+ struct dx_dir_info *dx_dir;
+#ifdef ENABLE_HTREE
+ struct dx_dirblock_info *dx_db = 0;
+#endif /* ENABLE_HTREE */
+ struct ext2_dir_entry *dirent, *prev;
+ ext2_dirhash_t hash;
+ unsigned int offset = 0;
+ int dir_modified = 0;
+ int dot_state;
+ blk_t block_nr = db->blk;
+ ext2_ino_t ino = db->ino;
+ __u16 links;
+ struct check_dir_struct *cd;
+ char *buf;
+ e2fsck_t ctx;
+ int problem;
+ struct ext2_dx_root_info *root;
+ struct ext2_dx_countlimit *limit;
+ static dict_t de_dict;
+ struct problem_context pctx;
+ int dups_found = 0;
+
+ cd = (struct check_dir_struct *) priv_data;
+ buf = cd->buf;
+ ctx = cd->ctx;
+
+ if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
+ return DIRENT_ABORT;
+
+ if (ctx->progress && (ctx->progress)(ctx, 2, cd->count++, cd->max))
+ return DIRENT_ABORT;
+
+ /*
+ * Make sure the inode is still in use (could have been
+ * deleted in the duplicate/bad blocks pass.
+ */
+ if (!(ext2fs_test_inode_bitmap(ctx->inode_used_map, ino)))
+ return 0;
+
+ cd->pctx.ino = ino;
+ cd->pctx.blk = block_nr;
+ cd->pctx.blkcount = db->blockcnt;
+ cd->pctx.ino2 = 0;
+ cd->pctx.dirent = 0;
+ cd->pctx.num = 0;
+
+ if (db->blk == 0) {
+ if (allocate_dir_block(ctx, db, buf, &cd->pctx))
+ return 0;
+ block_nr = db->blk;
+ }
+
+ if (db->blockcnt)
+ dot_state = 2;
+ else
+ dot_state = 0;
+
+ if (ctx->dirs_to_hash &&
+ ext2fs_u32_list_test(ctx->dirs_to_hash, ino))
+ dups_found++;
+
+#if 0
+ printf("In process_dir_block block %lu, #%d, inode %lu\n", block_nr,
+ db->blockcnt, ino);
+#endif
+
+ cd->pctx.errcode = ext2fs_read_dir_block(fs, block_nr, buf);
+ if (cd->pctx.errcode == EXT2_ET_DIR_CORRUPTED)
+ cd->pctx.errcode = 0; /* We'll handle this ourselves */
+ if (cd->pctx.errcode) {
+ if (!fix_problem(ctx, PR_2_READ_DIRBLOCK, &cd->pctx)) {
+ ctx->flags |= E2F_FLAG_ABORT;
+ return DIRENT_ABORT;
+ }
+ memset(buf, 0, fs->blocksize);
+ }
+#ifdef ENABLE_HTREE
+ dx_dir = e2fsck_get_dx_dir_info(ctx, ino);
+ if (dx_dir && dx_dir->numblocks) {
+ if (db->blockcnt >= dx_dir->numblocks) {
+ printf("XXX should never happen!!!\n");
+ abort();
+ }
+ dx_db = &dx_dir->dx_block[db->blockcnt];
+ dx_db->type = DX_DIRBLOCK_LEAF;
+ dx_db->phys = block_nr;
+ dx_db->min_hash = ~0;
+ dx_db->max_hash = 0;
+
+ dirent = (struct ext2_dir_entry *) buf;
+ limit = (struct ext2_dx_countlimit *) (buf+8);
+ if (db->blockcnt == 0) {
+ root = (struct ext2_dx_root_info *) (buf + 24);
+ dx_db->type = DX_DIRBLOCK_ROOT;
+ dx_db->flags |= DX_FLAG_FIRST | DX_FLAG_LAST;
+ if ((root->reserved_zero ||
+ root->info_length < 8 ||
+ root->indirect_levels > 1) &&
+ fix_problem(ctx, PR_2_HTREE_BAD_ROOT, &cd->pctx)) {
+ clear_htree(ctx, ino);
+ dx_dir->numblocks = 0;
+ dx_db = 0;
+ }
+ dx_dir->hashversion = root->hash_version;
+ dx_dir->depth = root->indirect_levels + 1;
+ } else if ((dirent->inode == 0) &&
+ (dirent->rec_len == fs->blocksize) &&
+ (dirent->name_len == 0) &&
+ (ext2fs_le16_to_cpu(limit->limit) ==
+ ((fs->blocksize-8) /
+ sizeof(struct ext2_dx_entry))))
+ dx_db->type = DX_DIRBLOCK_NODE;
+ }
+#endif /* ENABLE_HTREE */
+
+ dict_init(&de_dict, DICTCOUNT_T_MAX, dict_de_cmp);
+ prev = 0;
+ do {
+ problem = 0;
+ dirent = (struct ext2_dir_entry *) (buf + offset);
+ cd->pctx.dirent = dirent;
+ cd->pctx.num = offset;
+ if (((offset + dirent->rec_len) > fs->blocksize) ||
+ (dirent->rec_len < 12) ||
+ ((dirent->rec_len % 4) != 0) ||
+ (((dirent->name_len & 0xFF)+8) > dirent->rec_len)) {
+ if (fix_problem(ctx, PR_2_DIR_CORRUPTED, &cd->pctx)) {
+ salvage_directory(fs, dirent, prev, &offset);
+ dir_modified++;
+ continue;
+ } else
+ goto abort_free_dict;
+ }
+ if ((dirent->name_len & 0xFF) > EXT2_NAME_LEN) {
+ if (fix_problem(ctx, PR_2_FILENAME_LONG, &cd->pctx)) {
+ dirent->name_len = EXT2_NAME_LEN;
+ dir_modified++;
+ }
+ }
+
+ if (dot_state == 0) {
+ if (check_dot(ctx, dirent, ino, &cd->pctx))
+ dir_modified++;
+ } else if (dot_state == 1) {
+ dir = e2fsck_get_dir_info(ctx, ino);
+ if (!dir) {
+ fix_problem(ctx, PR_2_NO_DIRINFO, &cd->pctx);
+ goto abort_free_dict;
+ }
+ if (check_dotdot(ctx, dirent, dir, &cd->pctx))
+ dir_modified++;
+ } else if (dirent->inode == ino) {
+ problem = PR_2_LINK_DOT;
+ if (fix_problem(ctx, PR_2_LINK_DOT, &cd->pctx)) {
+ dirent->inode = 0;
+ dir_modified++;
+ goto next;
+ }
+ }
+ if (!dirent->inode)
+ goto next;
+
+ /*
+ * Make sure the inode listed is a legal one.
+ */
+ if (((dirent->inode != EXT2_ROOT_INO) &&
+ (dirent->inode < EXT2_FIRST_INODE(fs->super))) ||
+ (dirent->inode > fs->super->s_inodes_count)) {
+ problem = PR_2_BAD_INO;
+ } else if (!(ext2fs_test_inode_bitmap(ctx->inode_used_map,
+ dirent->inode))) {
+ /*
+ * If the inode is unused, offer to clear it.
+ */
+ problem = PR_2_UNUSED_INODE;
+ } else if (ctx->inode_bb_map &&
+ (ext2fs_test_inode_bitmap(ctx->inode_bb_map,
+ dirent->inode))) {
+ /*
+ * If the inode is in a bad block, offer to
+ * clear it.
+ */
+ problem = PR_2_BB_INODE;
+ } else if ((dot_state > 1) &&
+ ((dirent->name_len & 0xFF) == 1) &&
+ (dirent->name[0] == '.')) {
+ /*
+ * If there's a '.' entry in anything other
+ * than the first directory entry, it's a
+ * duplicate entry that should be removed.
+ */
+ problem = PR_2_DUP_DOT;
+ } else if ((dot_state > 1) &&
+ ((dirent->name_len & 0xFF) == 2) &&
+ (dirent->name[0] == '.') &&
+ (dirent->name[1] == '.')) {
+ /*
+ * If there's a '..' entry in anything other
+ * than the second directory entry, it's a
+ * duplicate entry that should be removed.
+ */
+ problem = PR_2_DUP_DOT_DOT;
+ } else if ((dot_state > 1) &&
+ (dirent->inode == EXT2_ROOT_INO)) {
+ /*
+ * Don't allow links to the root directory.
+ * We check this specially to make sure we
+ * catch this error case even if the root
+ * directory hasn't been created yet.
+ */
+ problem = PR_2_LINK_ROOT;
+ } else if ((dot_state > 1) &&
+ (dirent->name_len & 0xFF) == 0) {
+ /*
+ * Don't allow zero-length directory names.
+ */
+ problem = PR_2_NULL_NAME;
+ }
+
+ if (problem) {
+ if (fix_problem(ctx, problem, &cd->pctx)) {
+ dirent->inode = 0;
+ dir_modified++;
+ goto next;
+ } else {
+ ext2fs_unmark_valid(fs);
+ if (problem == PR_2_BAD_INO)
+ goto next;
+ }
+ }
+
+ /*
+ * If the inode was marked as having bad fields in
+ * pass1, process it and offer to fix/clear it.
+ * (We wait until now so that we can display the
+ * pathname to the user.)
+ */
+ if (ctx->inode_bad_map &&
+ ext2fs_test_inode_bitmap(ctx->inode_bad_map,
+ dirent->inode)) {
+ if (e2fsck_process_bad_inode(ctx, ino,
+ dirent->inode,
+ buf + fs->blocksize)) {
+ dirent->inode = 0;
+ dir_modified++;
+ goto next;
+ }
+ if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
+ return DIRENT_ABORT;
+ }
+
+ if (check_name(ctx, dirent, ino, &cd->pctx))
+ dir_modified++;
+
+ if (check_filetype(ctx, dirent, ino, &cd->pctx))
+ dir_modified++;
+
+#ifdef ENABLE_HTREE
+ if (dx_db) {
+ ext2fs_dirhash(dx_dir->hashversion, dirent->name,
+ (dirent->name_len & 0xFF),
+ fs->super->s_hash_seed, &hash, 0);
+ if (hash < dx_db->min_hash)
+ dx_db->min_hash = hash;
+ if (hash > dx_db->max_hash)
+ dx_db->max_hash = hash;
+ }
+#endif
+
+ /*
+ * If this is a directory, then mark its parent in its
+ * dir_info structure. If the parent field is already
+ * filled in, then this directory has more than one
+ * hard link. We assume the first link is correct,
+ * and ask the user if he/she wants to clear this one.
+ */
+ if ((dot_state > 1) &&
+ (ext2fs_test_inode_bitmap(ctx->inode_dir_map,
+ dirent->inode))) {
+ subdir = e2fsck_get_dir_info(ctx, dirent->inode);
+ if (!subdir) {
+ cd->pctx.ino = dirent->inode;
+ fix_problem(ctx, PR_2_NO_DIRINFO, &cd->pctx);
+ goto abort_free_dict;
+ }
+ if (subdir->parent) {
+ cd->pctx.ino2 = subdir->parent;
+ if (fix_problem(ctx, PR_2_LINK_DIR,
+ &cd->pctx)) {
+ dirent->inode = 0;
+ dir_modified++;
+ goto next;
+ }
+ cd->pctx.ino2 = 0;
+ } else
+ subdir->parent = ino;
+ }
+
+ if (dups_found) {
+ ;
+ } else if (dict_lookup(&de_dict, dirent)) {
+ clear_problem_context(&pctx);
+ pctx.ino = ino;
+ pctx.dirent = dirent;
+ fix_problem(ctx, PR_2_REPORT_DUP_DIRENT, &pctx);
+ if (!ctx->dirs_to_hash)
+ ext2fs_u32_list_create(&ctx->dirs_to_hash, 50);
+ if (ctx->dirs_to_hash)
+ ext2fs_u32_list_add(ctx->dirs_to_hash, ino);
+ dups_found++;
+ } else
+ dict_alloc_insert(&de_dict, dirent, dirent);
+
+ ext2fs_icount_increment(ctx->inode_count, dirent->inode,
+ &links);
+ if (links > 1)
+ ctx->fs_links_count++;
+ ctx->fs_total_count++;
+ next:
+ prev = dirent;
+ offset += dirent->rec_len;
+ dot_state++;
+ } while (offset < fs->blocksize);
+#if 0
+ printf("\n");
+#endif
+#ifdef ENABLE_HTREE
+ if (dx_db) {
+#ifdef DX_DEBUG
+ printf("db_block %d, type %d, min_hash 0x%0x, max_hash 0x%0x\n",
+ db->blockcnt, dx_db->type,
+ dx_db->min_hash, dx_db->max_hash);
+#endif
+ cd->pctx.dir = cd->pctx.ino;
+ if ((dx_db->type == DX_DIRBLOCK_ROOT) ||
+ (dx_db->type == DX_DIRBLOCK_NODE))
+ parse_int_node(fs, db, cd, dx_dir, buf);
+ }
+#endif /* ENABLE_HTREE */
+ if (offset != fs->blocksize) {
+ cd->pctx.num = dirent->rec_len - fs->blocksize + offset;
+ if (fix_problem(ctx, PR_2_FINAL_RECLEN, &cd->pctx)) {
+ dirent->rec_len = cd->pctx.num;
+ dir_modified++;
+ }
+ }
+ if (dir_modified) {
+ cd->pctx.errcode = ext2fs_write_dir_block(fs, block_nr, buf);
+ if (cd->pctx.errcode) {
+ if (!fix_problem(ctx, PR_2_WRITE_DIRBLOCK,
+ &cd->pctx))
+ goto abort_free_dict;
+ }
+ ext2fs_mark_changed(fs);
+ }
+ dict_free_nodes(&de_dict);
+ return 0;
+abort_free_dict:
+ dict_free_nodes(&de_dict);
+ ctx->flags |= E2F_FLAG_ABORT;
+ return DIRENT_ABORT;
+}
+
+/*
+ * This function is called to deallocate a block, and is an interator
+ * functioned called by deallocate inode via ext2fs_iterate_block().
+ */
+static int deallocate_inode_block(ext2_filsys fs,
+ blk_t *block_nr,
+ e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
+ blk_t ref_block EXT2FS_ATTR((unused)),
+ int ref_offset EXT2FS_ATTR((unused)),
+ void *priv_data)
+{
+ e2fsck_t ctx = (e2fsck_t) priv_data;
+
+ if (HOLE_BLKADDR(*block_nr))
+ return 0;
+ if ((*block_nr < fs->super->s_first_data_block) ||
+ (*block_nr >= fs->super->s_blocks_count))
+ return 0;
+ ext2fs_unmark_block_bitmap(ctx->block_found_map, *block_nr);
+ ext2fs_block_alloc_stats(fs, *block_nr, -1);
+ return 0;
+}
+
+/*
+ * This fuction deallocates an inode
+ */
+static void deallocate_inode(e2fsck_t ctx, ext2_ino_t ino, char* block_buf)
+{
+ ext2_filsys fs = ctx->fs;
+ struct ext2_inode inode;
+ struct problem_context pctx;
+ __u32 count;
+
+ ext2fs_icount_store(ctx->inode_link_info, ino, 0);
+ e2fsck_read_inode(ctx, ino, &inode, "deallocate_inode");
+ inode.i_links_count = 0;
+ inode.i_dtime = time(0);
+ e2fsck_write_inode(ctx, ino, &inode, "deallocate_inode");
+ clear_problem_context(&pctx);
+ pctx.ino = ino;
+
+ /*
+ * Fix up the bitmaps...
+ */
+ e2fsck_read_bitmaps(ctx);
+ ext2fs_unmark_inode_bitmap(ctx->inode_used_map, ino);
+ ext2fs_unmark_inode_bitmap(ctx->inode_dir_map, ino);
+ if (ctx->inode_bad_map)
+ ext2fs_unmark_inode_bitmap(ctx->inode_bad_map, ino);
+ ext2fs_inode_alloc_stats2(fs, ino, -1, LINUX_S_ISDIR(inode.i_mode));
+
+ if (inode.i_file_acl &&
+ (fs->super->s_feature_compat & EXT2_FEATURE_COMPAT_EXT_ATTR)) {
+ pctx.errcode = ext2fs_adjust_ea_refcount(fs, inode.i_file_acl,
+ block_buf, -1, &count);
+ if (pctx.errcode == EXT2_ET_BAD_EA_BLOCK_NUM) {
+ pctx.errcode = 0;
+ count = 1;
+ }
+ if (pctx.errcode) {
+ pctx.blk = inode.i_file_acl;
+ fix_problem(ctx, PR_2_ADJ_EA_REFCOUNT, &pctx);
+ ctx->flags |= E2F_FLAG_ABORT;
+ return;
+ }
+ if (count == 0) {
+ ext2fs_unmark_block_bitmap(ctx->block_found_map,
+ inode.i_file_acl);
+ ext2fs_block_alloc_stats(fs, inode.i_file_acl, -1);
+ }
+ inode.i_file_acl = 0;
+ }
+
+ if (!ext2fs_inode_has_valid_blocks(&inode))
+ return;
+
+ if (LINUX_S_ISREG(inode.i_mode) &&
+ (inode.i_size_high || inode.i_size & 0x80000000UL))
+ ctx->large_files--;
+
+ pctx.errcode = ext2fs_block_iterate2(fs, ino, 0, block_buf,
+ deallocate_inode_block, ctx);
+ if (pctx.errcode) {
+ fix_problem(ctx, PR_2_DEALLOC_INODE, &pctx);
+ ctx->flags |= E2F_FLAG_ABORT;
+ return;
+ }
+}
+
+/*
+ * This fuction clears the htree flag on an inode
+ */
+static void clear_htree(e2fsck_t ctx, ext2_ino_t ino)
+{
+ struct ext2_inode inode;
+
+ e2fsck_read_inode(ctx, ino, &inode, "clear_htree");
+ inode.i_flags = inode.i_flags & ~EXT2_INDEX_FL;
+ e2fsck_write_inode(ctx, ino, &inode, "clear_htree");
+ if (ctx->dirs_to_hash)
+ ext2fs_u32_list_add(ctx->dirs_to_hash, ino);
+}
+
+
+static int e2fsck_process_bad_inode(e2fsck_t ctx, ext2_ino_t dir,
+ ext2_ino_t ino, char *buf)
+{
+ ext2_filsys fs = ctx->fs;
+ struct ext2_inode inode;
+ int inode_modified = 0;
+ int not_fixed = 0;
+ unsigned char *frag, *fsize;
+ struct problem_context pctx;
+ int problem = 0;
+
+ e2fsck_read_inode(ctx, ino, &inode, "process_bad_inode");
+
+ clear_problem_context(&pctx);
+ pctx.ino = ino;
+ pctx.dir = dir;
+ pctx.inode = &inode;
+
+ if (inode.i_file_acl &&
+ !(fs->super->s_feature_compat & EXT2_FEATURE_COMPAT_EXT_ATTR) &&
+ fix_problem(ctx, PR_2_FILE_ACL_ZERO, &pctx)) {
+ inode.i_file_acl = 0;
+#ifdef EXT2FS_ENABLE_SWAPFS
+ /*
+ * This is a special kludge to deal with long symlinks
+ * on big endian systems. i_blocks had already been
+ * decremented earlier in pass 1, but since i_file_acl
+ * hadn't yet been cleared, ext2fs_read_inode()
+ * assumed that the file was short symlink and would
+ * not have byte swapped i_block[0]. Hence, we have
+ * to byte-swap it here.
+ */
+ if (LINUX_S_ISLNK(inode.i_mode) &&
+ (fs->flags & EXT2_FLAG_SWAP_BYTES) &&
+ (inode.i_blocks == fs->blocksize >> 9))
+ inode.i_block[0] = ext2fs_swab32(inode.i_block[0]);
+#endif
+ inode_modified++;
+ } else
+ not_fixed++;
+
+ if (!LINUX_S_ISDIR(inode.i_mode) && !LINUX_S_ISREG(inode.i_mode) &&
+ !LINUX_S_ISCHR(inode.i_mode) && !LINUX_S_ISBLK(inode.i_mode) &&
+ !LINUX_S_ISLNK(inode.i_mode) && !LINUX_S_ISFIFO(inode.i_mode) &&
+ !(LINUX_S_ISSOCK(inode.i_mode)))
+ problem = PR_2_BAD_MODE;
+ else if (LINUX_S_ISCHR(inode.i_mode)
+ && !e2fsck_pass1_check_device_inode(fs, &inode))
+ problem = PR_2_BAD_CHAR_DEV;
+ else if (LINUX_S_ISBLK(inode.i_mode)
+ && !e2fsck_pass1_check_device_inode(fs, &inode))
+ problem = PR_2_BAD_BLOCK_DEV;
+ else if (LINUX_S_ISFIFO(inode.i_mode)
+ && !e2fsck_pass1_check_device_inode(fs, &inode))
+ problem = PR_2_BAD_FIFO;
+ else if (LINUX_S_ISSOCK(inode.i_mode)
+ && !e2fsck_pass1_check_device_inode(fs, &inode))
+ problem = PR_2_BAD_SOCKET;
+ else if (LINUX_S_ISLNK(inode.i_mode)
+ && !e2fsck_pass1_check_symlink(fs, &inode, buf)) {
+ problem = PR_2_INVALID_SYMLINK;
+ }
+
+ if (problem) {
+ if (fix_problem(ctx, problem, &pctx)) {
+ deallocate_inode(ctx, ino, 0);
+ if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
+ return 0;
+ return 1;
+ } else
+ not_fixed++;
+ problem = 0;
+ }
+
+ if (inode.i_faddr) {
+ if (fix_problem(ctx, PR_2_FADDR_ZERO, &pctx)) {
+ inode.i_faddr = 0;
+ inode_modified++;
+ } else
+ not_fixed++;
+ }
+
+ switch (fs->super->s_creator_os) {
+ case EXT2_OS_LINUX:
+ frag = &inode.osd2.linux2.l_i_frag;
+ fsize = &inode.osd2.linux2.l_i_fsize;
+ break;
+ case EXT2_OS_HURD:
+ frag = &inode.osd2.hurd2.h_i_frag;
+ fsize = &inode.osd2.hurd2.h_i_fsize;
+ break;
+ case EXT2_OS_MASIX:
+ frag = &inode.osd2.masix2.m_i_frag;
+ fsize = &inode.osd2.masix2.m_i_fsize;
+ break;
+ default:
+ frag = fsize = 0;
+ }
+ if (frag && *frag) {
+ pctx.num = *frag;
+ if (fix_problem(ctx, PR_2_FRAG_ZERO, &pctx)) {
+ *frag = 0;
+ inode_modified++;
+ } else
+ not_fixed++;
+ pctx.num = 0;
+ }
+ if (fsize && *fsize) {
+ pctx.num = *fsize;
+ if (fix_problem(ctx, PR_2_FSIZE_ZERO, &pctx)) {
+ *fsize = 0;
+ inode_modified++;
+ } else
+ not_fixed++;
+ pctx.num = 0;
+ }
+
+ if (inode.i_file_acl &&
+ ((inode.i_file_acl < fs->super->s_first_data_block) ||
+ (inode.i_file_acl >= fs->super->s_blocks_count))) {
+ if (fix_problem(ctx, PR_2_FILE_ACL_BAD, &pctx)) {
+ inode.i_file_acl = 0;
+ inode_modified++;
+ } else
+ not_fixed++;
+ }
+ if (inode.i_dir_acl &&
+ LINUX_S_ISDIR(inode.i_mode)) {
+ if (fix_problem(ctx, PR_2_DIR_ACL_ZERO, &pctx)) {
+ inode.i_dir_acl = 0;
+ inode_modified++;
+ } else
+ not_fixed++;
+ }
+
+ if (inode_modified)
+ e2fsck_write_inode(ctx, ino, &inode, "process_bad_inode");
+ if (!not_fixed)
+ ext2fs_unmark_inode_bitmap(ctx->inode_bad_map, ino);
+ return 0;
+}
+
+
+/*
+ * allocate_dir_block --- this function allocates a new directory
+ * block for a particular inode; this is done if a directory has
+ * a "hole" in it, or if a directory has a illegal block number
+ * that was zeroed out and now needs to be replaced.
+ */
+static int allocate_dir_block(e2fsck_t ctx,
+ struct ext2_db_entry *db,
+ char *buf EXT2FS_ATTR((unused)),
+ struct problem_context *pctx)
+{
+ ext2_filsys fs = ctx->fs;
+ blk_t blk;
+ char *block;
+ struct ext2_inode inode;
+
+ if (fix_problem(ctx, PR_2_DIRECTORY_HOLE, pctx) == 0)
+ return 1;
+
+ /*
+ * Read the inode and block bitmaps in; we'll be messing with
+ * them.
+ */
+ e2fsck_read_bitmaps(ctx);
+
+ /*
+ * First, find a free block
+ */
+ pctx->errcode = ext2fs_new_block(fs, 0, ctx->block_found_map, &blk);
+ if (pctx->errcode) {
+ pctx->str = "ext2fs_new_block";
+ fix_problem(ctx, PR_2_ALLOC_DIRBOCK, pctx);
+ return 1;
+ }
+ ext2fs_mark_block_bitmap(ctx->block_found_map, blk);
+ ext2fs_mark_block_bitmap(fs->block_map, blk);
+ ext2fs_mark_bb_dirty(fs);
+
+ /*
+ * Now let's create the actual data block for the inode
+ */
+ if (db->blockcnt)
+ pctx->errcode = ext2fs_new_dir_block(fs, 0, 0, &block);
+ else
+ pctx->errcode = ext2fs_new_dir_block(fs, db->ino,
+ EXT2_ROOT_INO, &block);
+
+ if (pctx->errcode) {
+ pctx->str = "ext2fs_new_dir_block";
+ fix_problem(ctx, PR_2_ALLOC_DIRBOCK, pctx);
+ return 1;
+ }
+
+ pctx->errcode = ext2fs_write_dir_block(fs, blk, block);
+ ext2fs_free_mem(&block);
+ if (pctx->errcode) {
+ pctx->str = "ext2fs_write_dir_block";
+ fix_problem(ctx, PR_2_ALLOC_DIRBOCK, pctx);
+ return 1;
+ }
+
+ /*
+ * Update the inode block count
+ */
+ e2fsck_read_inode(ctx, db->ino, &inode, "allocate_dir_block");
+ inode.i_blocks += fs->blocksize / 512;
+ if (inode.i_size < (db->blockcnt+1) * fs->blocksize)
+ inode.i_size = (db->blockcnt+1) * fs->blocksize;
+ e2fsck_write_inode(ctx, db->ino, &inode, "allocate_dir_block");
+
+ /*
+ * Finally, update the block pointers for the inode
+ */
+ db->blk = blk;
+ pctx->errcode = ext2fs_block_iterate2(fs, db->ino, BLOCK_FLAG_HOLE,
+ 0, update_dir_block, db);
+ if (pctx->errcode) {
+ pctx->str = "ext2fs_block_iterate";
+ fix_problem(ctx, PR_2_ALLOC_DIRBOCK, pctx);
+ return 1;
+ }
+
+ return 0;
+}
+
+/*
+ * This is a helper function for allocate_dir_block().
+ */
+static int update_dir_block(ext2_filsys fs EXT2FS_ATTR((unused)),
+ blk_t *block_nr,
+ e2_blkcnt_t blockcnt,
+ blk_t ref_block EXT2FS_ATTR((unused)),
+ int ref_offset EXT2FS_ATTR((unused)),
+ void *priv_data)
+{
+ struct ext2_db_entry *db;
+
+ db = (struct ext2_db_entry *) priv_data;
+ if (db->blockcnt == (int) blockcnt) {
+ *block_nr = db->blk;
+ return BLOCK_CHANGED;
+ }
+ return 0;
+}
+/*
+ * pass3.c -- pass #3 of e2fsck: Check for directory connectivity
+ *
+ * Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999 Theodore Ts'o.
+ *
+ * %Begin-Header%
+ * This file may be redistributed under the terms of the GNU Public
+ * License.
+ * %End-Header%
+ *
+ * Pass #3 assures that all directories are connected to the
+ * filesystem tree, using the following algorithm:
+ *
+ * First, the root directory is checked to make sure it exists; if
+ * not, e2fsck will offer to create a new one. It is then marked as
+ * "done".
+ *
+ * Then, pass3 interates over all directory inodes; for each directory
+ * it attempts to trace up the filesystem tree, using dirinfo.parent
+ * until it reaches a directory which has been marked "done". If it
+ * can not do so, then the directory must be disconnected, and e2fsck
+ * will offer to reconnect it to /lost+found. While it is chasing
+ * parent pointers up the filesystem tree, if pass3 sees a directory
+ * twice, then it has detected a filesystem loop, and it will again
+ * offer to reconnect the directory to /lost+found in to break the
+ * filesystem loop.
+ *
+ * Pass 3 also contains the subroutine, e2fsck_reconnect_file() to
+ * reconnect inodes to /lost+found; this subroutine is also used by
+ * pass 4. e2fsck_reconnect_file() calls get_lost_and_found(), which
+ * is responsible for creating /lost+found if it does not exist.
+ *
+ * Pass 3 frees the following data structures:
+ * - The dirinfo directory information cache.
+ */
+
+static void check_root(e2fsck_t ctx);
+static int check_directory(e2fsck_t ctx, struct dir_info *dir,
+ struct problem_context *pctx);
+static void fix_dotdot(e2fsck_t ctx, struct dir_info *dir, ext2_ino_t parent);
+
+static ext2fs_inode_bitmap inode_loop_detect = 0;
+static ext2fs_inode_bitmap inode_done_map = 0;
+
+void e2fsck_pass3(e2fsck_t ctx)
+{
+ ext2_filsys fs = ctx->fs;
+ int i;
+#ifdef RESOURCE_TRACK
+ struct resource_track rtrack;
+#endif
+ struct problem_context pctx;
+ struct dir_info *dir;
+ unsigned long maxdirs, count;
+
+#ifdef RESOURCE_TRACK
+ init_resource_track(&rtrack);
+#endif
+
+ clear_problem_context(&pctx);
+
+#ifdef MTRACE
+ mtrace_print("Pass 3");
+#endif
+
+ if (!(ctx->options & E2F_OPT_PREEN))
+ fix_problem(ctx, PR_3_PASS_HEADER, &pctx);
+
+ /*
+ * Allocate some bitmaps to do loop detection.
+ */
+ pctx.errcode = ext2fs_allocate_inode_bitmap(fs, _("inode done bitmap"),
+ &inode_done_map);
+ if (pctx.errcode) {
+ pctx.num = 2;
+ fix_problem(ctx, PR_3_ALLOCATE_IBITMAP_ERROR, &pctx);
+ ctx->flags |= E2F_FLAG_ABORT;
+ goto abort_exit;
+ }
+#ifdef RESOURCE_TRACK
+ if (ctx->options & E2F_OPT_TIME) {
+ e2fsck_clear_progbar(ctx);
+ print_resource_track(_("Peak memory"), &ctx->global_rtrack);
+ }
+#endif
+
+ check_root(ctx);
+ if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
+ goto abort_exit;
+
+ ext2fs_mark_inode_bitmap(inode_done_map, EXT2_ROOT_INO);
+
+ maxdirs = e2fsck_get_num_dirinfo(ctx);
+ count = 1;
+
+ if (ctx->progress)
+ if ((ctx->progress)(ctx, 3, 0, maxdirs))
+ goto abort_exit;
+
+ for (i=0; (dir = e2fsck_dir_info_iter(ctx, &i)) != 0;) {
+ if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
+ goto abort_exit;
+ if (ctx->progress && (ctx->progress)(ctx, 3, count++, maxdirs))
+ goto abort_exit;
+ if (ext2fs_test_inode_bitmap(ctx->inode_dir_map, dir->ino))
+ if (check_directory(ctx, dir, &pctx))
+ goto abort_exit;
+ }
+
+ /*
+ * Force the creation of /lost+found if not present
+ */
+ if ((ctx->flags & E2F_OPT_READONLY) == 0)
+ e2fsck_get_lost_and_found(ctx, 1);
+
+ /*
+ * If there are any directories that need to be indexed or
+ * optimized, do it here.
+ */
+ e2fsck_rehash_directories(ctx);
+
+abort_exit:
+ e2fsck_free_dir_info(ctx);
+ if (inode_loop_detect) {
+ ext2fs_free_inode_bitmap(inode_loop_detect);
+ inode_loop_detect = 0;
+ }
+ if (inode_done_map) {
+ ext2fs_free_inode_bitmap(inode_done_map);
+ inode_done_map = 0;
+ }
+
+#ifdef RESOURCE_TRACK
+ if (ctx->options & E2F_OPT_TIME2) {
+ e2fsck_clear_progbar(ctx);
+ print_resource_track(_("Pass 3"), &rtrack);
+ }
+#endif
+}
+
+/*
+ * This makes sure the root inode is present; if not, we ask if the
+ * user wants us to create it. Not creating it is a fatal error.
+ */
+static void check_root(e2fsck_t ctx)
+{
+ ext2_filsys fs = ctx->fs;
+ blk_t blk;
+ struct ext2_inode inode;
+ char * block;
+ struct problem_context pctx;
+
+ clear_problem_context(&pctx);
+
+ if (ext2fs_test_inode_bitmap(ctx->inode_used_map, EXT2_ROOT_INO)) {
+ /*
+ * If the root inode is not a directory, die here. The
+ * user must have answered 'no' in pass1 when we
+ * offered to clear it.
+ */
+ if (!(ext2fs_test_inode_bitmap(ctx->inode_dir_map,
+ EXT2_ROOT_INO))) {
+ fix_problem(ctx, PR_3_ROOT_NOT_DIR_ABORT, &pctx);
+ ctx->flags |= E2F_FLAG_ABORT;
+ }
+ return;
+ }
+
+ if (!fix_problem(ctx, PR_3_NO_ROOT_INODE, &pctx)) {
+ fix_problem(ctx, PR_3_NO_ROOT_INODE_ABORT, &pctx);
+ ctx->flags |= E2F_FLAG_ABORT;
+ return;
+ }
+
+ e2fsck_read_bitmaps(ctx);
+
+ /*
+ * First, find a free block
+ */
+ pctx.errcode = ext2fs_new_block(fs, 0, ctx->block_found_map, &blk);
+ if (pctx.errcode) {
+ pctx.str = "ext2fs_new_block";
+ fix_problem(ctx, PR_3_CREATE_ROOT_ERROR, &pctx);
+ ctx->flags |= E2F_FLAG_ABORT;
+ return;
+ }
+ ext2fs_mark_block_bitmap(ctx->block_found_map, blk);
+ ext2fs_mark_block_bitmap(fs->block_map, blk);
+ ext2fs_mark_bb_dirty(fs);
+
+ /*
+ * Now let's create the actual data block for the inode
+ */
+ pctx.errcode = ext2fs_new_dir_block(fs, EXT2_ROOT_INO, EXT2_ROOT_INO,
+ &block);
+ if (pctx.errcode) {
+ pctx.str = "ext2fs_new_dir_block";
+ fix_problem(ctx, PR_3_CREATE_ROOT_ERROR, &pctx);
+ ctx->flags |= E2F_FLAG_ABORT;
+ return;
+ }
+
+ pctx.errcode = ext2fs_write_dir_block(fs, blk, block);
+ if (pctx.errcode) {
+ pctx.str = "ext2fs_write_dir_block";
+ fix_problem(ctx, PR_3_CREATE_ROOT_ERROR, &pctx);
+ ctx->flags |= E2F_FLAG_ABORT;
+ return;
+ }
+ ext2fs_free_mem(&block);
+
+ /*
+ * Set up the inode structure
+ */
+ memset(&inode, 0, sizeof(inode));
+ inode.i_mode = 040755;
+ inode.i_size = fs->blocksize;
+ inode.i_atime = inode.i_ctime = inode.i_mtime = time(0);
+ inode.i_links_count = 2;
+ inode.i_blocks = fs->blocksize / 512;
+ inode.i_block[0] = blk;
+
+ /*
+ * Write out the inode.
+ */
+ pctx.errcode = ext2fs_write_new_inode(fs, EXT2_ROOT_INO, &inode);
+ if (pctx.errcode) {
+ pctx.str = "ext2fs_write_inode";
+ fix_problem(ctx, PR_3_CREATE_ROOT_ERROR, &pctx);
+ ctx->flags |= E2F_FLAG_ABORT;
+ return;
+ }
+
+ /*
+ * Miscellaneous bookkeeping...
+ */
+ e2fsck_add_dir_info(ctx, EXT2_ROOT_INO, EXT2_ROOT_INO);
+ ext2fs_icount_store(ctx->inode_count, EXT2_ROOT_INO, 2);
+ ext2fs_icount_store(ctx->inode_link_info, EXT2_ROOT_INO, 2);
+
+ ext2fs_mark_inode_bitmap(ctx->inode_used_map, EXT2_ROOT_INO);
+ ext2fs_mark_inode_bitmap(ctx->inode_dir_map, EXT2_ROOT_INO);
+ ext2fs_mark_inode_bitmap(fs->inode_map, EXT2_ROOT_INO);
+ ext2fs_mark_ib_dirty(fs);
+}
+
+/*
+ * This subroutine is responsible for making sure that a particular
+ * directory is connected to the root; if it isn't we trace it up as
+ * far as we can go, and then offer to connect the resulting parent to
+ * the lost+found. We have to do loop detection; if we ever discover
+ * a loop, we treat that as a disconnected directory and offer to
+ * reparent it to lost+found.
+ *
+ * However, loop detection is expensive, because for very large
+ * filesystems, the inode_loop_detect bitmap is huge, and clearing it
+ * is non-trivial. Loops in filesystems are also a rare error case,
+ * and we shouldn't optimize for error cases. So we try two passes of
+ * the algorithm. The first time, we ignore loop detection and merely
+ * increment a counter; if the counter exceeds some extreme threshold,
+ * then we try again with the loop detection bitmap enabled.
+ */
+static int check_directory(e2fsck_t ctx, struct dir_info *dir,
+ struct problem_context *pctx)
+{
+ ext2_filsys fs = ctx->fs;
+ struct dir_info *p = dir;
+ int loop_pass = 0, parent_count = 0;
+
+ if (!p)
+ return 0;
+
+ while (1) {
+ /*
+ * Mark this inode as being "done"; by the time we
+ * return from this function, the inode we either be
+ * verified as being connected to the directory tree,
+ * or we will have offered to reconnect this to
+ * lost+found.
+ *
+ * If it was marked done already, then we've reached a
+ * parent we've already checked.
+ */
+ if (ext2fs_mark_inode_bitmap(inode_done_map, p->ino))
+ break;
+
+ /*
+ * If this directory doesn't have a parent, or we've
+ * seen the parent once already, then offer to
+ * reparent it to lost+found
+ */
+ if (!p->parent ||
+ (loop_pass &&
+ (ext2fs_test_inode_bitmap(inode_loop_detect,
+ p->parent)))) {
+ pctx->ino = p->ino;
+ if (fix_problem(ctx, PR_3_UNCONNECTED_DIR, pctx)) {
+ if (e2fsck_reconnect_file(ctx, pctx->ino))
+ ext2fs_unmark_valid(fs);
+ else {
+ p = e2fsck_get_dir_info(ctx, pctx->ino);
+ p->parent = ctx->lost_and_found;
+ fix_dotdot(ctx, p, ctx->lost_and_found);
+ }
+ }
+ break;
+ }
+ p = e2fsck_get_dir_info(ctx, p->parent);
+ if (!p) {
+ fix_problem(ctx, PR_3_NO_DIRINFO, pctx);
+ return 0;
+ }
+ if (loop_pass) {
+ ext2fs_mark_inode_bitmap(inode_loop_detect,
+ p->ino);
+ } else if (parent_count++ > 2048) {
+ /*
+ * If we've run into a path depth that's
+ * greater than 2048, try again with the inode
+ * loop bitmap turned on and start from the
+ * top.
+ */
+ loop_pass = 1;
+ if (inode_loop_detect)
+ ext2fs_clear_inode_bitmap(inode_loop_detect);
+ else {
+ pctx->errcode = ext2fs_allocate_inode_bitmap(fs, _("inode loop detection bitmap"), &inode_loop_detect);
+ if (pctx->errcode) {
+ pctx->num = 1;
+ fix_problem(ctx,
+ PR_3_ALLOCATE_IBITMAP_ERROR, pctx);
+ ctx->flags |= E2F_FLAG_ABORT;
+ return -1;
+ }
+ }
+ p = dir;
+ }
+ }
+
+ /*
+ * Make sure that .. and the parent directory are the same;
+ * offer to fix it if not.
+ */
+ if (dir->parent != dir->dotdot) {
+ pctx->ino = dir->ino;
+ pctx->ino2 = dir->dotdot;
+ pctx->dir = dir->parent;
+ if (fix_problem(ctx, PR_3_BAD_DOT_DOT, pctx))
+ fix_dotdot(ctx, dir, dir->parent);
+ }
+ return 0;
+}
+
+/*
+ * This routine gets the lost_and_found inode, making it a directory
+ * if necessary
+ */
+ext2_ino_t e2fsck_get_lost_and_found(e2fsck_t ctx, int fix)
+{
+ ext2_filsys fs = ctx->fs;
+ ext2_ino_t ino;
+ blk_t blk;
+ errcode_t retval;
+ struct ext2_inode inode;
+ char * block;
+ static const char name[] = "lost+found";
+ struct problem_context pctx;
+ struct dir_info *dirinfo;
+
+ if (ctx->lost_and_found)
+ return ctx->lost_and_found;
+
+ clear_problem_context(&pctx);
+
+ retval = ext2fs_lookup(fs, EXT2_ROOT_INO, name,
+ sizeof(name)-1, 0, &ino);
+ if (retval && !fix)
+ return 0;
+ if (!retval) {
+ if (ext2fs_test_inode_bitmap(ctx->inode_dir_map, ino)) {
+ ctx->lost_and_found = ino;
+ return ino;
+ }
+
+ /* Lost+found isn't a directory! */
+ if (!fix)
+ return 0;
+ pctx.ino = ino;
+ if (!fix_problem(ctx, PR_3_LPF_NOTDIR, &pctx))
+ return 0;
+
+ /* OK, unlink the old /lost+found file. */
+ pctx.errcode = ext2fs_unlink(fs, EXT2_ROOT_INO, name, ino, 0);
+ if (pctx.errcode) {
+ pctx.str = "ext2fs_unlink";
+ fix_problem(ctx, PR_3_CREATE_LPF_ERROR, &pctx);
+ return 0;
+ }
+ dirinfo = e2fsck_get_dir_info(ctx, ino);
+ if (dirinfo)
+ dirinfo->parent = 0;
+ e2fsck_adjust_inode_count(ctx, ino, -1);
+ } else if (retval != EXT2_ET_FILE_NOT_FOUND) {
+ pctx.errcode = retval;
+ fix_problem(ctx, PR_3_ERR_FIND_LPF, &pctx);
+ }
+ if (!fix_problem(ctx, PR_3_NO_LF_DIR, 0))
+ return 0;
+
+ /*
+ * Read the inode and block bitmaps in; we'll be messing with
+ * them.
+ */
+ e2fsck_read_bitmaps(ctx);
+
+ /*
+ * First, find a free block
+ */
+ retval = ext2fs_new_block(fs, 0, ctx->block_found_map, &blk);
+ if (retval) {
+ pctx.errcode = retval;
+ fix_problem(ctx, PR_3_ERR_LPF_NEW_BLOCK, &pctx);
+ return 0;
+ }
+ ext2fs_mark_block_bitmap(ctx->block_found_map, blk);
+ ext2fs_block_alloc_stats(fs, blk, +1);
+
+ /*
+ * Next find a free inode.
+ */
+ retval = ext2fs_new_inode(fs, EXT2_ROOT_INO, 040700,
+ ctx->inode_used_map, &ino);
+ if (retval) {
+ pctx.errcode = retval;
+ fix_problem(ctx, PR_3_ERR_LPF_NEW_INODE, &pctx);
+ return 0;
+ }
+ ext2fs_mark_inode_bitmap(ctx->inode_used_map, ino);
+ ext2fs_mark_inode_bitmap(ctx->inode_dir_map, ino);
+ ext2fs_inode_alloc_stats2(fs, ino, +1, 1);
+
+ /*
+ * Now let's create the actual data block for the inode
+ */
+ retval = ext2fs_new_dir_block(fs, ino, EXT2_ROOT_INO, &block);
+ if (retval) {
+ pctx.errcode = retval;
+ fix_problem(ctx, PR_3_ERR_LPF_NEW_DIR_BLOCK, &pctx);
+ return 0;
+ }
+
+ retval = ext2fs_write_dir_block(fs, blk, block);
+ ext2fs_free_mem(&block);
+ if (retval) {
+ pctx.errcode = retval;
+ fix_problem(ctx, PR_3_ERR_LPF_WRITE_BLOCK, &pctx);
+ return 0;
+ }
+
+ /*
+ * Set up the inode structure
+ */
+ memset(&inode, 0, sizeof(inode));
+ inode.i_mode = 040700;
+ inode.i_size = fs->blocksize;
+ inode.i_atime = inode.i_ctime = inode.i_mtime = time(0);
+ inode.i_links_count = 2;
+ inode.i_blocks = fs->blocksize / 512;
+ inode.i_block[0] = blk;
+
+ /*
+ * Next, write out the inode.
+ */
+ pctx.errcode = ext2fs_write_new_inode(fs, ino, &inode);
+ if (pctx.errcode) {
+ pctx.str = "ext2fs_write_inode";
+ fix_problem(ctx, PR_3_CREATE_LPF_ERROR, &pctx);
+ return 0;
+ }
+ /*
+ * Finally, create the directory link
+ */
+ pctx.errcode = ext2fs_link(fs, EXT2_ROOT_INO, name, ino, EXT2_FT_DIR);
+ if (pctx.errcode) {
+ pctx.str = "ext2fs_link";
+ fix_problem(ctx, PR_3_CREATE_LPF_ERROR, &pctx);
+ return 0;
+ }
+
+ /*
+ * Miscellaneous bookkeeping that needs to be kept straight.
+ */
+ e2fsck_add_dir_info(ctx, ino, EXT2_ROOT_INO);
+ e2fsck_adjust_inode_count(ctx, EXT2_ROOT_INO, 1);
+ ext2fs_icount_store(ctx->inode_count, ino, 2);
+ ext2fs_icount_store(ctx->inode_link_info, ino, 2);
+ ctx->lost_and_found = ino;
+#if 0
+ printf("/lost+found created; inode #%lu\n", ino);
+#endif
+ return ino;
+}
+
+/*
+ * This routine will connect a file to lost+found
+ */
+int e2fsck_reconnect_file(e2fsck_t ctx, ext2_ino_t ino)
+{
+ ext2_filsys fs = ctx->fs;
+ errcode_t retval;
+ char name[80];
+ struct problem_context pctx;
+ struct ext2_inode inode;
+ int file_type = 0;
+
+ clear_problem_context(&pctx);
+ pctx.ino = ino;
+
+ if (!ctx->bad_lost_and_found && !ctx->lost_and_found) {
+ if (e2fsck_get_lost_and_found(ctx, 1) == 0)
+ ctx->bad_lost_and_found++;
+ }
+ if (ctx->bad_lost_and_found) {
+ fix_problem(ctx, PR_3_NO_LPF, &pctx);
+ return 1;
+ }
+
+ sprintf(name, "#%u", ino);
+ if (ext2fs_read_inode(fs, ino, &inode) == 0)
+ file_type = ext2_file_type(inode.i_mode);
+ retval = ext2fs_link(fs, ctx->lost_and_found, name, ino, file_type);
+ if (retval == EXT2_ET_DIR_NO_SPACE) {
+ if (!fix_problem(ctx, PR_3_EXPAND_LF_DIR, &pctx))
+ return 1;
+ retval = e2fsck_expand_directory(ctx, ctx->lost_and_found,
+ 1, 0);
+ if (retval) {
+ pctx.errcode = retval;
+ fix_problem(ctx, PR_3_CANT_EXPAND_LPF, &pctx);
+ return 1;
+ }
+ retval = ext2fs_link(fs, ctx->lost_and_found, name,
+ ino, file_type);
+ }
+ if (retval) {
+ pctx.errcode = retval;
+ fix_problem(ctx, PR_3_CANT_RECONNECT, &pctx);
+ return 1;
+ }
+ e2fsck_adjust_inode_count(ctx, ino, 1);
+
+ return 0;
+}
+
+/*
+ * Utility routine to adjust the inode counts on an inode.
+ */
+errcode_t e2fsck_adjust_inode_count(e2fsck_t ctx, ext2_ino_t ino, int adj)
+{
+ ext2_filsys fs = ctx->fs;
+ errcode_t retval;
+ struct ext2_inode inode;
+
+ if (!ino)
+ return 0;
+
+ retval = ext2fs_read_inode(fs, ino, &inode);
+ if (retval)
+ return retval;
+
+#if 0
+ printf("Adjusting link count for inode %lu by %d (from %d)\n", ino, adj,
+ inode.i_links_count);
+#endif
+
+ if (adj == 1) {
+ ext2fs_icount_increment(ctx->inode_count, ino, 0);
+ if (inode.i_links_count == (__u16) ~0)
+ return 0;
+ ext2fs_icount_increment(ctx->inode_link_info, ino, 0);
+ inode.i_links_count++;
+ } else if (adj == -1) {
+ ext2fs_icount_decrement(ctx->inode_count, ino, 0);
+ if (inode.i_links_count == 0)
+ return 0;
+ ext2fs_icount_decrement(ctx->inode_link_info, ino, 0);
+ inode.i_links_count--;
+ }
+
+ retval = ext2fs_write_inode(fs, ino, &inode);
+ if (retval)
+ return retval;
+
+ return 0;
+}
+
+/*
+ * Fix parent --- this routine fixes up the parent of a directory.
+ */
+struct fix_dotdot_struct {
+ ext2_filsys fs;
+ ext2_ino_t parent;
+ int done;
+ e2fsck_t ctx;
+};
+
+static int fix_dotdot_proc(struct ext2_dir_entry *dirent,
+ int offset EXT2FS_ATTR((unused)),
+ int blocksize EXT2FS_ATTR((unused)),
+ char *buf EXT2FS_ATTR((unused)),
+ void *priv_data)
+{
+ struct fix_dotdot_struct *fp = (struct fix_dotdot_struct *) priv_data;
+ errcode_t retval;
+ struct problem_context pctx;
+
+ if ((dirent->name_len & 0xFF) != 2)
+ return 0;
+ if (strncmp(dirent->name, "..", 2))
+ return 0;
+
+ clear_problem_context(&pctx);
+
+ retval = e2fsck_adjust_inode_count(fp->ctx, dirent->inode, -1);
+ if (retval) {
+ pctx.errcode = retval;
+ fix_problem(fp->ctx, PR_3_ADJUST_INODE, &pctx);
+ }
+ retval = e2fsck_adjust_inode_count(fp->ctx, fp->parent, 1);
+ if (retval) {
+ pctx.errcode = retval;
+ fix_problem(fp->ctx, PR_3_ADJUST_INODE, &pctx);
+ }
+ dirent->inode = fp->parent;
+
+ fp->done++;
+ return DIRENT_ABORT | DIRENT_CHANGED;
+}
+
+static void fix_dotdot(e2fsck_t ctx, struct dir_info *dir, ext2_ino_t parent)
+{
+ ext2_filsys fs = ctx->fs;
+ errcode_t retval;
+ struct fix_dotdot_struct fp;
+ struct problem_context pctx;
+
+ fp.fs = fs;
+ fp.parent = parent;
+ fp.done = 0;
+ fp.ctx = ctx;
+
+#if 0
+ printf("Fixing '..' of inode %lu to be %lu...\n", dir->ino, parent);
+#endif
+
+ retval = ext2fs_dir_iterate(fs, dir->ino, DIRENT_FLAG_INCLUDE_EMPTY,
+ 0, fix_dotdot_proc, &fp);
+ if (retval || !fp.done) {
+ clear_problem_context(&pctx);
+ pctx.ino = dir->ino;
+ pctx.errcode = retval;
+ fix_problem(ctx, retval ? PR_3_FIX_PARENT_ERR :
+ PR_3_FIX_PARENT_NOFIND, &pctx);
+ ext2fs_unmark_valid(fs);
+ }
+ dir->dotdot = parent;
+
+ return;
+}
+
+/*
+ * These routines are responsible for expanding a /lost+found if it is
+ * too small.
+ */
+
+struct expand_dir_struct {
+ int num;
+ int guaranteed_size;
+ int newblocks;
+ int last_block;
+ errcode_t err;
+ e2fsck_t ctx;
+};
+
+static int expand_dir_proc(ext2_filsys fs,
+ blk_t *blocknr,
+ e2_blkcnt_t blockcnt,
+ blk_t ref_block EXT2FS_ATTR((unused)),
+ int ref_offset EXT2FS_ATTR((unused)),
+ void *priv_data)
+{
+ struct expand_dir_struct *es = (struct expand_dir_struct *) priv_data;
+ blk_t new_blk;
+ static blk_t last_blk = 0;
+ char *block;
+ errcode_t retval;
+ e2fsck_t ctx;
+
+ ctx = es->ctx;
+
+ if (es->guaranteed_size && blockcnt >= es->guaranteed_size)
+ return BLOCK_ABORT;
+
+ if (blockcnt > 0)
+ es->last_block = blockcnt;
+ if (*blocknr) {
+ last_blk = *blocknr;
+ return 0;
+ }
+ retval = ext2fs_new_block(fs, last_blk, ctx->block_found_map,
+ &new_blk);
+ if (retval) {
+ es->err = retval;
+ return BLOCK_ABORT;
+ }
+ if (blockcnt > 0) {
+ retval = ext2fs_new_dir_block(fs, 0, 0, &block);
+ if (retval) {
+ es->err = retval;
+ return BLOCK_ABORT;
+ }
+ es->num--;
+ retval = ext2fs_write_dir_block(fs, new_blk, block);
+ } else {
+ retval = ext2fs_get_mem(fs->blocksize, &block);
+ if (retval) {
+ es->err = retval;
+ return BLOCK_ABORT;
+ }
+ memset(block, 0, fs->blocksize);
+ retval = io_channel_write_blk(fs->io, new_blk, 1, block);
+ }
+ if (retval) {
+ es->err = retval;
+ return BLOCK_ABORT;
+ }
+ ext2fs_free_mem(&block);
+ *blocknr = new_blk;
+ ext2fs_mark_block_bitmap(ctx->block_found_map, new_blk);
+ ext2fs_block_alloc_stats(fs, new_blk, +1);
+ es->newblocks++;
+
+ if (es->num == 0)
+ return (BLOCK_CHANGED | BLOCK_ABORT);
+ else
+ return BLOCK_CHANGED;
+}
+
+errcode_t e2fsck_expand_directory(e2fsck_t ctx, ext2_ino_t dir,
+ int num, int guaranteed_size)
+{
+ ext2_filsys fs = ctx->fs;
+ errcode_t retval;
+ struct expand_dir_struct es;
+ struct ext2_inode inode;
+
+ if (!(fs->flags & EXT2_FLAG_RW))
+ return EXT2_ET_RO_FILSYS;
+
+ /*
+ * Read the inode and block bitmaps in; we'll be messing with
+ * them.
+ */
+ e2fsck_read_bitmaps(ctx);
+
+ retval = ext2fs_check_directory(fs, dir);
+ if (retval)
+ return retval;
+
+ es.num = num;
+ es.guaranteed_size = guaranteed_size;
+ es.last_block = 0;
+ es.err = 0;
+ es.newblocks = 0;
+ es.ctx = ctx;
+
+ retval = ext2fs_block_iterate2(fs, dir, BLOCK_FLAG_APPEND,
+ 0, expand_dir_proc, &es);
+
+ if (es.err)
+ return es.err;
+
+ /*
+ * Update the size and block count fields in the inode.
+ */
+ retval = ext2fs_read_inode(fs, dir, &inode);
+ if (retval)
+ return retval;
+
+ inode.i_size = (es.last_block + 1) * fs->blocksize;
+ inode.i_blocks += (fs->blocksize / 512) * es.newblocks;
+
+ e2fsck_write_inode(ctx, dir, &inode, "expand_directory");
+
+ return 0;
+}
+
+/*
+ * pass4.c -- pass #4 of e2fsck: Check reference counts
+ *
+ * Copyright (C) 1993, 1994, 1995, 1996, 1997 Theodore Ts'o.
+ *
+ * %Begin-Header%
+ * This file may be redistributed under the terms of the GNU Public
+ * License.
+ * %End-Header%
+ *
+ * Pass 4 frees the following data structures:
+ * - A bitmap of which inodes are in bad blocks. (inode_bb_map)
+ * - A bitmap of which inodes are imagic inodes. (inode_imagic_map)
+ */
+
+/*
+ * This routine is called when an inode is not connected to the
+ * directory tree.
+ *
+ * This subroutine returns 1 then the caller shouldn't bother with the
+ * rest of the pass 4 tests.
+ */
+static int disconnect_inode(e2fsck_t ctx, ext2_ino_t i)
+{
+ ext2_filsys fs = ctx->fs;
+ struct ext2_inode inode;
+ struct problem_context pctx;
+
+ e2fsck_read_inode(ctx, i, &inode, "pass4: disconnect_inode");
+ clear_problem_context(&pctx);
+ pctx.ino = i;
+ pctx.inode = &inode;
+
+ /*
+ * Offer to delete any zero-length files that does not have
+ * blocks. If there is an EA block, it might have useful
+ * information, so we won't prompt to delete it, but let it be
+ * reconnected to lost+found.
+ */
+ if (!inode.i_blocks && (LINUX_S_ISREG(inode.i_mode) ||
+ LINUX_S_ISDIR(inode.i_mode))) {
+ if (fix_problem(ctx, PR_4_ZERO_LEN_INODE, &pctx)) {
+ ext2fs_icount_store(ctx->inode_link_info, i, 0);
+ inode.i_links_count = 0;
+ inode.i_dtime = time(0);
+ e2fsck_write_inode(ctx, i, &inode,
+ "disconnect_inode");
+ /*
+ * Fix up the bitmaps...
+ */
+ e2fsck_read_bitmaps(ctx);
+ ext2fs_unmark_inode_bitmap(ctx->inode_used_map, i);
+ ext2fs_unmark_inode_bitmap(ctx->inode_dir_map, i);
+ ext2fs_inode_alloc_stats2(fs, i, -1,
+ LINUX_S_ISDIR(inode.i_mode));
+ return 0;
+ }
+ }
+
+ /*
+ * Prompt to reconnect.
+ */
+ if (fix_problem(ctx, PR_4_UNATTACHED_INODE, &pctx)) {
+ if (e2fsck_reconnect_file(ctx, i))
+ ext2fs_unmark_valid(fs);
+ } else {
+ /*
+ * If we don't attach the inode, then skip the
+ * i_links_test since there's no point in trying to
+ * force i_links_count to zero.
+ */
+ ext2fs_unmark_valid(fs);
+ return 1;
+ }
+ return 0;
+}
+
+
+void e2fsck_pass4(e2fsck_t ctx)
+{
+ ext2_filsys fs = ctx->fs;
+ ext2_ino_t i;
+ struct ext2_inode inode;
+#ifdef RESOURCE_TRACK
+ struct resource_track rtrack;
+#endif
+ struct problem_context pctx;
+ __u16 link_count, link_counted;
+ char *buf = 0;
+ int group, maxgroup;
+
+#ifdef RESOURCE_TRACK
+ init_resource_track(&rtrack);
+#endif
+
+#ifdef MTRACE
+ mtrace_print("Pass 4");
+#endif
+
+ clear_problem_context(&pctx);
+
+ if (!(ctx->options & E2F_OPT_PREEN))
+ fix_problem(ctx, PR_4_PASS_HEADER, &pctx);
+
+ group = 0;
+ maxgroup = fs->group_desc_count;
+ if (ctx->progress)
+ if ((ctx->progress)(ctx, 4, 0, maxgroup))
+ return;
+
+ for (i=1; i <= fs->super->s_inodes_count; i++) {
+ if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
+ return;
+ if ((i % fs->super->s_inodes_per_group) == 0) {
+ group++;
+ if (ctx->progress)
+ if ((ctx->progress)(ctx, 4, group, maxgroup))
+ return;
+ }
+ if (i == EXT2_BAD_INO ||
+ (i > EXT2_ROOT_INO && i < EXT2_FIRST_INODE(fs->super)))
+ continue;
+ if (!(ext2fs_test_inode_bitmap(ctx->inode_used_map, i)) ||
+ (ctx->inode_imagic_map &&
+ ext2fs_test_inode_bitmap(ctx->inode_imagic_map, i)) ||
+ (ctx->inode_bb_map &&
+ ext2fs_test_inode_bitmap(ctx->inode_bb_map, i)))
+ continue;
+ ext2fs_icount_fetch(ctx->inode_link_info, i, &link_count);
+ ext2fs_icount_fetch(ctx->inode_count, i, &link_counted);
+ if (link_counted == 0) {
+ if (!buf)
+ buf = e2fsck_allocate_memory(ctx,
+ fs->blocksize, "bad_inode buffer");
+ if (e2fsck_process_bad_inode(ctx, 0, i, buf))
+ continue;
+ if (disconnect_inode(ctx, i))
+ continue;
+ ext2fs_icount_fetch(ctx->inode_link_info, i,
+ &link_count);
+ ext2fs_icount_fetch(ctx->inode_count, i,
+ &link_counted);
+ }
+ if (link_counted != link_count) {
+ e2fsck_read_inode(ctx, i, &inode, "pass4");
+ pctx.ino = i;
+ pctx.inode = &inode;
+ if (link_count != inode.i_links_count) {
+ pctx.num = link_count;
+ fix_problem(ctx,
+ PR_4_INCONSISTENT_COUNT, &pctx);
+ }
+ pctx.num = link_counted;
+ if (fix_problem(ctx, PR_4_BAD_REF_COUNT, &pctx)) {
+ inode.i_links_count = link_counted;
+ e2fsck_write_inode(ctx, i, &inode, "pass4");
+ }
+ }
+ }
+ ext2fs_free_icount(ctx->inode_link_info); ctx->inode_link_info = 0;
+ ext2fs_free_icount(ctx->inode_count); ctx->inode_count = 0;
+ ext2fs_free_inode_bitmap(ctx->inode_bb_map);
+ ctx->inode_bb_map = 0;
+ ext2fs_free_inode_bitmap(ctx->inode_imagic_map);
+ ctx->inode_imagic_map = 0;
+ if (buf)
+ ext2fs_free_mem(&buf);
+#ifdef RESOURCE_TRACK
+ if (ctx->options & E2F_OPT_TIME2) {
+ e2fsck_clear_progbar(ctx);
+ print_resource_track(_("Pass 4"), &rtrack);
+ }
+#endif
+}
+
+/*
+ * pass5.c --- check block and inode bitmaps against on-disk bitmaps
+ *
+ * Copyright (C) 1993, 1994, 1995, 1996, 1997 Theodore Ts'o.
+ *
+ * %Begin-Header%
+ * This file may be redistributed under the terms of the GNU Public
+ * License.
+ * %End-Header%
+ *
+ */
+
+static void check_block_bitmaps(e2fsck_t ctx);
+static void check_inode_bitmaps(e2fsck_t ctx);
+static void check_inode_end(e2fsck_t ctx);
+static void check_block_end(e2fsck_t ctx);
+
+void e2fsck_pass5(e2fsck_t ctx)
+{
+#ifdef RESOURCE_TRACK
+ struct resource_track rtrack;
+#endif
+ struct problem_context pctx;
+
+#ifdef MTRACE
+ mtrace_print("Pass 5");
+#endif
+
+#ifdef RESOURCE_TRACK
+ init_resource_track(&rtrack);
+#endif
+
+ clear_problem_context(&pctx);
+
+ if (!(ctx->options & E2F_OPT_PREEN))
+ fix_problem(ctx, PR_5_PASS_HEADER, &pctx);
+
+ if (ctx->progress)
+ if ((ctx->progress)(ctx, 5, 0, ctx->fs->group_desc_count*2))
+ return;
+
+ e2fsck_read_bitmaps(ctx);
+
+ check_block_bitmaps(ctx);
+ if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
+ return;
+ check_inode_bitmaps(ctx);
+ if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
+ return;
+ check_inode_end(ctx);
+ if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
+ return;
+ check_block_end(ctx);
+ if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
+ return;
+
+ ext2fs_free_inode_bitmap(ctx->inode_used_map);
+ ctx->inode_used_map = 0;
+ ext2fs_free_inode_bitmap(ctx->inode_dir_map);
+ ctx->inode_dir_map = 0;
+ ext2fs_free_block_bitmap(ctx->block_found_map);
+ ctx->block_found_map = 0;
+
+#ifdef RESOURCE_TRACK
+ if (ctx->options & E2F_OPT_TIME2) {
+ e2fsck_clear_progbar(ctx);
+ print_resource_track(_("Pass 5"), &rtrack);
+ }
+#endif
+}
+
+#define NO_BLK ((blk_t) -1)
+
+static void print_bitmap_problem(e2fsck_t ctx, int problem,
+ struct problem_context *pctx)
+{
+ switch (problem) {
+ case PR_5_BLOCK_UNUSED:
+ if (pctx->blk == pctx->blk2)
+ pctx->blk2 = 0;
+ else
+ problem = PR_5_BLOCK_RANGE_UNUSED;
+ break;
+ case PR_5_BLOCK_USED:
+ if (pctx->blk == pctx->blk2)
+ pctx->blk2 = 0;
+ else
+ problem = PR_5_BLOCK_RANGE_USED;
+ break;
+ case PR_5_INODE_UNUSED:
+ if (pctx->ino == pctx->ino2)
+ pctx->ino2 = 0;
+ else
+ problem = PR_5_INODE_RANGE_UNUSED;
+ break;
+ case PR_5_INODE_USED:
+ if (pctx->ino == pctx->ino2)
+ pctx->ino2 = 0;
+ else
+ problem = PR_5_INODE_RANGE_USED;
+ break;
+ }
+ fix_problem(ctx, problem, pctx);
+ pctx->blk = pctx->blk2 = NO_BLK;
+ pctx->ino = pctx->ino2 = 0;
+}
+
+static void check_block_bitmaps(e2fsck_t ctx)
+{
+ ext2_filsys fs = ctx->fs;
+ blk_t i;
+ int *free_array;
+ int group = 0;
+ unsigned int blocks = 0;
+ unsigned int free_blocks = 0;
+ int group_free = 0;
+ int actual, bitmap;
+ struct problem_context pctx;
+ int problem, save_problem, fixit, had_problem;
+ errcode_t retval;
+
+ clear_problem_context(&pctx);
+ free_array = (int *) e2fsck_allocate_memory(ctx,
+ fs->group_desc_count * sizeof(int), "free block count array");
+
+ if ((fs->super->s_first_data_block <
+ ext2fs_get_block_bitmap_start(ctx->block_found_map)) ||
+ (fs->super->s_blocks_count-1 >
+ ext2fs_get_block_bitmap_end(ctx->block_found_map))) {
+ pctx.num = 1;
+ pctx.blk = fs->super->s_first_data_block;
+ pctx.blk2 = fs->super->s_blocks_count -1;
+ pctx.ino = ext2fs_get_block_bitmap_start(ctx->block_found_map);
+ pctx.ino2 = ext2fs_get_block_bitmap_end(ctx->block_found_map);
+ fix_problem(ctx, PR_5_BMAP_ENDPOINTS, &pctx);
+
+ ctx->flags |= E2F_FLAG_ABORT; /* fatal */
+ return;
+ }
+
+ if ((fs->super->s_first_data_block <
+ ext2fs_get_block_bitmap_start(fs->block_map)) ||
+ (fs->super->s_blocks_count-1 >
+ ext2fs_get_block_bitmap_end(fs->block_map))) {
+ pctx.num = 2;
+ pctx.blk = fs->super->s_first_data_block;
+ pctx.blk2 = fs->super->s_blocks_count -1;
+ pctx.ino = ext2fs_get_block_bitmap_start(fs->block_map);
+ pctx.ino2 = ext2fs_get_block_bitmap_end(fs->block_map);
+ fix_problem(ctx, PR_5_BMAP_ENDPOINTS, &pctx);
+
+ ctx->flags |= E2F_FLAG_ABORT; /* fatal */
+ return;
+ }
+
+redo_counts:
+ had_problem = 0;
+ save_problem = 0;
+ pctx.blk = pctx.blk2 = NO_BLK;
+ for (i = fs->super->s_first_data_block;
+ i < fs->super->s_blocks_count;
+ i++) {
+ actual = ext2fs_fast_test_block_bitmap(ctx->block_found_map, i);
+ bitmap = ext2fs_fast_test_block_bitmap(fs->block_map, i);
+
+ if (actual == bitmap)
+ goto do_counts;
+
+ if (!actual && bitmap) {
+ /*
+ * Block not used, but marked in use in the bitmap.
+ */
+ problem = PR_5_BLOCK_UNUSED;
+ } else {
+ /*
+ * Block used, but not marked in use in the bitmap.
+ */
+ problem = PR_5_BLOCK_USED;
+ }
+ if (pctx.blk == NO_BLK) {
+ pctx.blk = pctx.blk2 = i;
+ save_problem = problem;
+ } else {
+ if ((problem == save_problem) &&
+ (pctx.blk2 == i-1))
+ pctx.blk2++;
+ else {
+ print_bitmap_problem(ctx, save_problem, &pctx);
+ pctx.blk = pctx.blk2 = i;
+ save_problem = problem;
+ }
+ }
+ ctx->flags |= E2F_FLAG_PROG_SUPPRESS;
+ had_problem++;
+
+ do_counts:
+ if (!bitmap) {
+ group_free++;
+ free_blocks++;
+ }
+ blocks ++;
+ if ((blocks == fs->super->s_blocks_per_group) ||
+ (i == fs->super->s_blocks_count-1)) {
+ free_array[group] = group_free;
+ group ++;
+ blocks = 0;
+ group_free = 0;
+ if (ctx->progress)
+ if ((ctx->progress)(ctx, 5, group,
+ fs->group_desc_count*2))
+ return;
+ }
+ }
+ if (pctx.blk != NO_BLK)
+ print_bitmap_problem(ctx, save_problem, &pctx);
+ if (had_problem)
+ fixit = end_problem_latch(ctx, PR_LATCH_BBITMAP);
+ else
+ fixit = -1;
+ ctx->flags &= ~E2F_FLAG_PROG_SUPPRESS;
+
+ if (fixit == 1) {
+ ext2fs_free_block_bitmap(fs->block_map);
+ retval = ext2fs_copy_bitmap(ctx->block_found_map,
+ &fs->block_map);
+ if (retval) {
+ clear_problem_context(&pctx);
+ fix_problem(ctx, PR_5_COPY_BBITMAP_ERROR, &pctx);
+ ctx->flags |= E2F_FLAG_ABORT;
+ return;
+ }
+ ext2fs_set_bitmap_padding(fs->block_map);
+ ext2fs_mark_bb_dirty(fs);
+
+ /* Redo the counts */
+ blocks = 0; free_blocks = 0; group_free = 0; group = 0;
+ memset(free_array, 0, fs->group_desc_count * sizeof(int));
+ goto redo_counts;
+ } else if (fixit == 0)
+ ext2fs_unmark_valid(fs);
+
+ for (i = 0; i < fs->group_desc_count; i++) {
+ if (free_array[i] != fs->group_desc[i].bg_free_blocks_count) {
+ pctx.group = i;
+ pctx.blk = fs->group_desc[i].bg_free_blocks_count;
+ pctx.blk2 = free_array[i];
+
+ if (fix_problem(ctx, PR_5_FREE_BLOCK_COUNT_GROUP,
+ &pctx)) {
+ fs->group_desc[i].bg_free_blocks_count =
+ free_array[i];
+ ext2fs_mark_super_dirty(fs);
+ } else
+ ext2fs_unmark_valid(fs);
+ }
+ }
+ if (free_blocks != fs->super->s_free_blocks_count) {
+ pctx.group = 0;
+ pctx.blk = fs->super->s_free_blocks_count;
+ pctx.blk2 = free_blocks;
+
+ if (fix_problem(ctx, PR_5_FREE_BLOCK_COUNT, &pctx)) {
+ fs->super->s_free_blocks_count = free_blocks;
+ ext2fs_mark_super_dirty(fs);
+ } else
+ ext2fs_unmark_valid(fs);
+ }
+ ext2fs_free_mem(&free_array);
+}
+
+static void check_inode_bitmaps(e2fsck_t ctx)
+{
+ ext2_filsys fs = ctx->fs;
+ ext2_ino_t i;
+ unsigned int free_inodes = 0;
+ int group_free = 0;
+ int dirs_count = 0;
+ int group = 0;
+ unsigned int inodes = 0;
+ int *free_array;
+ int *dir_array;
+ int actual, bitmap;
+ errcode_t retval;
+ struct problem_context pctx;
+ int problem, save_problem, fixit, had_problem;
+
+ clear_problem_context(&pctx);
+ free_array = (int *) e2fsck_allocate_memory(ctx,
+ fs->group_desc_count * sizeof(int), "free inode count array");
+
+ dir_array = (int *) e2fsck_allocate_memory(ctx,
+ fs->group_desc_count * sizeof(int), "directory count array");
+
+ if ((1 < ext2fs_get_inode_bitmap_start(ctx->inode_used_map)) ||
+ (fs->super->s_inodes_count >
+ ext2fs_get_inode_bitmap_end(ctx->inode_used_map))) {
+ pctx.num = 3;
+ pctx.blk = 1;
+ pctx.blk2 = fs->super->s_inodes_count;
+ pctx.ino = ext2fs_get_inode_bitmap_start(ctx->inode_used_map);
+ pctx.ino2 = ext2fs_get_inode_bitmap_end(ctx->inode_used_map);
+ fix_problem(ctx, PR_5_BMAP_ENDPOINTS, &pctx);
+
+ ctx->flags |= E2F_FLAG_ABORT; /* fatal */
+ return;
+ }
+ if ((1 < ext2fs_get_inode_bitmap_start(fs->inode_map)) ||
+ (fs->super->s_inodes_count >
+ ext2fs_get_inode_bitmap_end(fs->inode_map))) {
+ pctx.num = 4;
+ pctx.blk = 1;
+ pctx.blk2 = fs->super->s_inodes_count;
+ pctx.ino = ext2fs_get_inode_bitmap_start(fs->inode_map);
+ pctx.ino2 = ext2fs_get_inode_bitmap_end(fs->inode_map);
+ fix_problem(ctx, PR_5_BMAP_ENDPOINTS, &pctx);
+
+ ctx->flags |= E2F_FLAG_ABORT; /* fatal */
+ return;
+ }
+
+redo_counts:
+ had_problem = 0;
+ save_problem = 0;
+ pctx.ino = pctx.ino2 = 0;
+ for (i = 1; i <= fs->super->s_inodes_count; i++) {
+ actual = ext2fs_fast_test_inode_bitmap(ctx->inode_used_map, i);
+ bitmap = ext2fs_fast_test_inode_bitmap(fs->inode_map, i);
+
+ if (actual == bitmap)
+ goto do_counts;
+
+ if (!actual && bitmap) {
+ /*
+ * Inode wasn't used, but marked in bitmap
+ */
+ problem = PR_5_INODE_UNUSED;
+ } else /* if (actual && !bitmap) */ {
+ /*
+ * Inode used, but not in bitmap
+ */
+ problem = PR_5_INODE_USED;
+ }
+ if (pctx.ino == 0) {
+ pctx.ino = pctx.ino2 = i;
+ save_problem = problem;
+ } else {
+ if ((problem == save_problem) &&
+ (pctx.ino2 == i-1))
+ pctx.ino2++;
+ else {
+ print_bitmap_problem(ctx, save_problem, &pctx);
+ pctx.ino = pctx.ino2 = i;
+ save_problem = problem;
+ }
+ }
+ ctx->flags |= E2F_FLAG_PROG_SUPPRESS;
+ had_problem++;
+
+do_counts:
+ if (!bitmap) {
+ group_free++;
+ free_inodes++;
+ } else {
+ if (ext2fs_test_inode_bitmap(ctx->inode_dir_map, i))
+ dirs_count++;
+ }
+ inodes++;
+ if ((inodes == fs->super->s_inodes_per_group) ||
+ (i == fs->super->s_inodes_count)) {
+ free_array[group] = group_free;
+ dir_array[group] = dirs_count;
+ group ++;
+ inodes = 0;
+ group_free = 0;
+ dirs_count = 0;
+ if (ctx->progress)
+ if ((ctx->progress)(ctx, 5,
+ group + fs->group_desc_count,
+ fs->group_desc_count*2))
+ return;
+ }
+ }
+ if (pctx.ino)
+ print_bitmap_problem(ctx, save_problem, &pctx);
+
+ if (had_problem)
+ fixit = end_problem_latch(ctx, PR_LATCH_IBITMAP);
+ else
+ fixit = -1;
+ ctx->flags &= ~E2F_FLAG_PROG_SUPPRESS;
+
+ if (fixit == 1) {
+ ext2fs_free_inode_bitmap(fs->inode_map);
+ retval = ext2fs_copy_bitmap(ctx->inode_used_map,
+ &fs->inode_map);
+ if (retval) {
+ clear_problem_context(&pctx);
+ fix_problem(ctx, PR_5_COPY_IBITMAP_ERROR, &pctx);
+ ctx->flags |= E2F_FLAG_ABORT;
+ return;
+ }
+ ext2fs_set_bitmap_padding(fs->inode_map);
+ ext2fs_mark_ib_dirty(fs);
+
+ /* redo counts */
+ inodes = 0; free_inodes = 0; group_free = 0;
+ dirs_count = 0; group = 0;
+ memset(free_array, 0, fs->group_desc_count * sizeof(int));
+ memset(dir_array, 0, fs->group_desc_count * sizeof(int));
+ goto redo_counts;
+ } else if (fixit == 0)
+ ext2fs_unmark_valid(fs);
+
+ for (i = 0; i < fs->group_desc_count; i++) {
+ if (free_array[i] != fs->group_desc[i].bg_free_inodes_count) {
+ pctx.group = i;
+ pctx.ino = fs->group_desc[i].bg_free_inodes_count;
+ pctx.ino2 = free_array[i];
+ if (fix_problem(ctx, PR_5_FREE_INODE_COUNT_GROUP,
+ &pctx)) {
+ fs->group_desc[i].bg_free_inodes_count =
+ free_array[i];
+ ext2fs_mark_super_dirty(fs);
+ } else
+ ext2fs_unmark_valid(fs);
+ }
+ if (dir_array[i] != fs->group_desc[i].bg_used_dirs_count) {
+ pctx.group = i;
+ pctx.ino = fs->group_desc[i].bg_used_dirs_count;
+ pctx.ino2 = dir_array[i];
+
+ if (fix_problem(ctx, PR_5_FREE_DIR_COUNT_GROUP,
+ &pctx)) {
+ fs->group_desc[i].bg_used_dirs_count =
+ dir_array[i];
+ ext2fs_mark_super_dirty(fs);
+ } else
+ ext2fs_unmark_valid(fs);
+ }
+ }
+ if (free_inodes != fs->super->s_free_inodes_count) {
+ pctx.group = -1;
+ pctx.ino = fs->super->s_free_inodes_count;
+ pctx.ino2 = free_inodes;
+
+ if (fix_problem(ctx, PR_5_FREE_INODE_COUNT, &pctx)) {
+ fs->super->s_free_inodes_count = free_inodes;
+ ext2fs_mark_super_dirty(fs);
+ } else
+ ext2fs_unmark_valid(fs);
+ }
+ ext2fs_free_mem(&free_array);
+ ext2fs_free_mem(&dir_array);
+}
+
+static void check_inode_end(e2fsck_t ctx)
+{
+ ext2_filsys fs = ctx->fs;
+ ext2_ino_t end, save_inodes_count, i;
+ struct problem_context pctx;
+
+ clear_problem_context(&pctx);
+
+ end = EXT2_INODES_PER_GROUP(fs->super) * fs->group_desc_count;
+ pctx.errcode = ext2fs_fudge_inode_bitmap_end(fs->inode_map, end,
+ &save_inodes_count);
+ if (pctx.errcode) {
+ pctx.num = 1;
+ fix_problem(ctx, PR_5_FUDGE_BITMAP_ERROR, &pctx);
+ ctx->flags |= E2F_FLAG_ABORT; /* fatal */
+ return;
+ }
+ if (save_inodes_count == end)
+ return;
+
+ for (i = save_inodes_count + 1; i <= end; i++) {
+ if (!ext2fs_test_inode_bitmap(fs->inode_map, i)) {
+ if (fix_problem(ctx, PR_5_INODE_BMAP_PADDING, &pctx)) {
+ for (i = save_inodes_count + 1; i <= end; i++)
+ ext2fs_mark_inode_bitmap(fs->inode_map,
+ i);
+ ext2fs_mark_ib_dirty(fs);
+ } else
+ ext2fs_unmark_valid(fs);
+ break;
+ }
+ }
+
+ pctx.errcode = ext2fs_fudge_inode_bitmap_end(fs->inode_map,
+ save_inodes_count, 0);
+ if (pctx.errcode) {
+ pctx.num = 2;
+ fix_problem(ctx, PR_5_FUDGE_BITMAP_ERROR, &pctx);
+ ctx->flags |= E2F_FLAG_ABORT; /* fatal */
+ return;
+ }
+}
+
+static void check_block_end(e2fsck_t ctx)
+{
+ ext2_filsys fs = ctx->fs;
+ blk_t end, save_blocks_count, i;
+ struct problem_context pctx;
+
+ clear_problem_context(&pctx);
+
+ end = fs->block_map->start +
+ (EXT2_BLOCKS_PER_GROUP(fs->super) * fs->group_desc_count) - 1;
+ pctx.errcode = ext2fs_fudge_block_bitmap_end(fs->block_map, end,
+ &save_blocks_count);
+ if (pctx.errcode) {
+ pctx.num = 3;
+ fix_problem(ctx, PR_5_FUDGE_BITMAP_ERROR, &pctx);
+ ctx->flags |= E2F_FLAG_ABORT; /* fatal */
+ return;
+ }
+ if (save_blocks_count == end)
+ return;
+
+ for (i = save_blocks_count + 1; i <= end; i++) {
+ if (!ext2fs_test_block_bitmap(fs->block_map, i)) {
+ if (fix_problem(ctx, PR_5_BLOCK_BMAP_PADDING, &pctx)) {
+ for (i = save_blocks_count + 1; i <= end; i++)
+ ext2fs_mark_block_bitmap(fs->block_map,
+ i);
+ ext2fs_mark_bb_dirty(fs);
+ } else
+ ext2fs_unmark_valid(fs);
+ break;
+ }
+ }
+
+ pctx.errcode = ext2fs_fudge_block_bitmap_end(fs->block_map,
+ save_blocks_count, 0);
+ if (pctx.errcode) {
+ pctx.num = 4;
+ fix_problem(ctx, PR_5_FUDGE_BITMAP_ERROR, &pctx);
+ ctx->flags |= E2F_FLAG_ABORT; /* fatal */
+ return;
+ }
+}
+
+
+
+/*
+ * problem.c --- report filesystem problems to the user
+ *
+ * Copyright 1996, 1997 by Theodore Ts'o
+ *
+ * %Begin-Header%
+ * This file may be redistributed under the terms of the GNU Public
+ * License.
+ * %End-Header%
+ */
+
+#define PR_PREEN_OK 0x000001 /* Don't need to do preenhalt */
+#define PR_NO_OK 0x000002 /* If user answers no, don't make fs invalid */
+#define PR_NO_DEFAULT 0x000004 /* Default to no */
+#define PR_MSG_ONLY 0x000008 /* Print message only */
+
+/* Bit positions 0x000ff0 are reserved for the PR_LATCH flags */
+
+#define PR_FATAL 0x001000 /* Fatal error */
+#define PR_AFTER_CODE 0x002000 /* After asking the first question, */
+ /* ask another */
+#define PR_PREEN_NOMSG 0x004000 /* Don't print a message if we're preening */
+#define PR_NOCOLLATE 0x008000 /* Don't collate answers for this latch */
+#define PR_NO_NOMSG 0x010000 /* Don't print a message if e2fsck -n */
+#define PR_PREEN_NO 0x020000 /* Use No as an answer if preening */
+#define PR_PREEN_NOHDR 0x040000 /* Don't print the preen header */
+
+
+#define PROMPT_NONE 0
+#define PROMPT_FIX 1
+#define PROMPT_CLEAR 2
+#define PROMPT_RELOCATE 3
+#define PROMPT_ALLOCATE 4
+#define PROMPT_EXPAND 5
+#define PROMPT_CONNECT 6
+#define PROMPT_CREATE 7
+#define PROMPT_SALVAGE 8
+#define PROMPT_TRUNCATE 9
+#define PROMPT_CLEAR_INODE 10
+#define PROMPT_ABORT 11
+#define PROMPT_SPLIT 12
+#define PROMPT_CONTINUE 13
+#define PROMPT_CLONE 14
+#define PROMPT_DELETE 15
+#define PROMPT_SUPPRESS 16
+#define PROMPT_UNLINK 17
+#define PROMPT_CLEAR_HTREE 18
+#define PROMPT_RECREATE 19
+#define PROMPT_NULL 20
+
+struct e2fsck_problem {
+ problem_t e2p_code;
+ const char * e2p_description;
+ char prompt;
+ int flags;
+ problem_t second_code;
+};
+
+struct latch_descr {
+ int latch_code;
+ problem_t question;
+ problem_t end_message;
+ int flags;
+};
+
+/*
+ * These are the prompts which are used to ask the user if they want
+ * to fix a problem.
+ */
+static const char *prompt[] = {
+ N_("(no prompt)"), /* 0 */
+ N_("Fix"), /* 1 */
+ N_("Clear"), /* 2 */
+ N_("Relocate"), /* 3 */
+ N_("Allocate"), /* 4 */
+ N_("Expand"), /* 5 */
+ N_("Connect to /lost+found"), /* 6 */
+ N_("Create"), /* 7 */
+ N_("Salvage"), /* 8 */
+ N_("Truncate"), /* 9 */
+ N_("Clear inode"), /* 10 */
+ N_("Abort"), /* 11 */
+ N_("Split"), /* 12 */
+ N_("Continue"), /* 13 */
+ N_("Clone duplicate/bad blocks"), /* 14 */
+ N_("Delete file"), /* 15 */
+ N_("Suppress messages"),/* 16 */
+ N_("Unlink"), /* 17 */
+ N_("Clear HTree index"),/* 18 */
+ N_("Recreate"), /* 19 */
+ "", /* 20 */
+};
+
+/*
+ * These messages are printed when we are preen mode and we will be
+ * automatically fixing the problem.
+ */
+static const char *preen_msg[] = {
+ N_("(NONE)"), /* 0 */
+ N_("FIXED"), /* 1 */
+ N_("CLEARED"), /* 2 */
+ N_("RELOCATED"), /* 3 */
+ N_("ALLOCATED"), /* 4 */
+ N_("EXPANDED"), /* 5 */
+ N_("RECONNECTED"), /* 6 */
+ N_("CREATED"), /* 7 */
+ N_("SALVAGED"), /* 8 */
+ N_("TRUNCATED"), /* 9 */
+ N_("INODE CLEARED"), /* 10 */
+ N_("ABORTED"), /* 11 */
+ N_("SPLIT"), /* 12 */
+ N_("CONTINUING"), /* 13 */
+ N_("DUPLICATE/BAD BLOCKS CLONED"), /* 14 */
+ N_("FILE DELETED"), /* 15 */
+ N_("SUPPRESSED"), /* 16 */
+ N_("UNLINKED"), /* 17 */
+ N_("HTREE INDEX CLEARED"),/* 18 */
+ N_("WILL RECREATE"), /* 19 */
+ "", /* 20 */
+};
+
+static const struct e2fsck_problem problem_table[] = {
+
+ /* Pre-Pass 1 errors */
+
+ /* Block bitmap not in group */
+ { PR_0_BB_NOT_GROUP, N_("@b @B for @g %g is not in @g. (@b %b)\n"),
+ PROMPT_RELOCATE, PR_LATCH_RELOC },
+
+ /* Inode bitmap not in group */
+ { PR_0_IB_NOT_GROUP, N_("@i @B for @g %g is not in @g. (@b %b)\n"),
+ PROMPT_RELOCATE, PR_LATCH_RELOC },
+
+ /* Inode table not in group */
+ { PR_0_ITABLE_NOT_GROUP,
+ N_("@i table for @g %g is not in @g. (@b %b)\n"
+ "WARNING: SEVERE DATA LOSS POSSIBLE.\n"),
+ PROMPT_RELOCATE, PR_LATCH_RELOC },
+
+ /* Superblock corrupt */
+ { PR_0_SB_CORRUPT,
+ N_("\nThe @S could not be read or does not describe a correct ext2\n"
+ "@f. If the @v is valid and it really contains an ext2\n"
+ "@f (and not swap or ufs or something else), then the @S\n"
+ "is corrupt, and you might try running e2fsck with an alternate @S:\n"
+ " e2fsck -b %S <@v>\n\n"),
+ PROMPT_NONE, PR_FATAL },
+
+ /* Filesystem size is wrong */
+ { PR_0_FS_SIZE_WRONG,
+ N_("The @f size (according to the @S) is %b @bs\n"
+ "The physical size of the @v is %c @bs\n"
+ "Either the @S or the partition table is likely to be corrupt!\n"),
+ PROMPT_ABORT, 0 },
+
+ /* Fragments not supported */
+ { PR_0_NO_FRAGMENTS,
+ N_("@S @b_size = %b, fragsize = %c.\n"
+ "This version of e2fsck does not support fragment sizes different\n"
+ "from the @b size.\n"),
+ PROMPT_NONE, PR_FATAL },
+
+ /* Bad blocks_per_group */
+ { PR_0_BLOCKS_PER_GROUP,
+ N_("@S @bs_per_group = %b, should have been %c\n"),
+ PROMPT_NONE, PR_AFTER_CODE, PR_0_SB_CORRUPT },
+
+ /* Bad first_data_block */
+ { PR_0_FIRST_DATA_BLOCK,
+ N_("@S first_data_@b = %b, should have been %c\n"),
+ PROMPT_NONE, PR_AFTER_CODE, PR_0_SB_CORRUPT },
+
+ /* Adding UUID to filesystem */
+ { PR_0_ADD_UUID,
+ N_("@f did not have a UUID; generating one.\n\n"),
+ PROMPT_NONE, 0 },
+
+ /* Relocate hint */
+ { PR_0_RELOCATE_HINT,
+ N_("Note: if there is several inode or block bitmap blocks\n"
+ "which require relocation, or one part of the inode table\n"
+ "which must be moved, you may wish to try running e2fsck\n"
+ "with the '-b %S' option first. The problem may lie only\n"
+ "with the primary block group descriptor, and the backup\n"
+ "block group descriptor may be OK.\n\n"),
+ PROMPT_NONE, PR_PREEN_OK | PR_NOCOLLATE },
+
+ /* Miscellaneous superblock corruption */
+ { PR_0_MISC_CORRUPT_SUPER,
+ N_("Corruption found in @S. (%s = %N).\n"),
+ PROMPT_NONE, PR_AFTER_CODE, PR_0_SB_CORRUPT },
+
+ /* Error determing physical device size of filesystem */
+ { PR_0_GETSIZE_ERROR,
+ N_("Error determining size of the physical @v: %m\n"),
+ PROMPT_NONE, PR_FATAL },
+
+ /* Inode count in superblock is incorrect */
+ { PR_0_INODE_COUNT_WRONG,
+ N_("@i count in @S is %i, should be %j.\n"),
+ PROMPT_FIX, 0 },
+
+ { PR_0_HURD_CLEAR_FILETYPE,
+ N_("The Hurd does not support the filetype feature.\n"),
+ PROMPT_CLEAR, 0 },
+
+ /* Journal inode is invalid */
+ { PR_0_JOURNAL_BAD_INODE,
+ N_("@S has a bad ext3 @j (@i %i).\n"),
+ PROMPT_CLEAR, PR_PREEN_OK },
+
+ /* The external journal has (unsupported) multiple filesystems */
+ { PR_0_JOURNAL_UNSUPP_MULTIFS,
+ N_("External @j has multiple @f users (unsupported).\n"),
+ PROMPT_NONE, PR_FATAL },
+
+ /* Can't find external journal */
+ { PR_0_CANT_FIND_JOURNAL,
+ N_("Can't find external @j\n"),
+ PROMPT_NONE, PR_FATAL },
+
+ /* External journal has bad superblock */
+ { PR_0_EXT_JOURNAL_BAD_SUPER,
+ N_("External @j has bad @S\n"),
+ PROMPT_NONE, PR_FATAL },
+
+ /* Superblock has a bad journal UUID */
+ { PR_0_JOURNAL_BAD_UUID,
+ N_("External @j does not support this @f\n"),
+ PROMPT_NONE, PR_FATAL },
+
+ /* Journal has an unknown superblock type */
+ { PR_0_JOURNAL_UNSUPP_SUPER,
+ N_("Ext3 @j @S is unknown type %N (unsupported).\n"
+ "It is likely that your copy of e2fsck is old and/or doesn't "
+ "support this @j format.\n"
+ "It is also possible the @j @S is corrupt.\n"),
+ PROMPT_ABORT, PR_NO_OK | PR_AFTER_CODE, PR_0_JOURNAL_BAD_SUPER },
+
+ /* Journal superblock is corrupt */
+ { PR_0_JOURNAL_BAD_SUPER,
+ N_("Ext3 @j @S is corrupt.\n"),
+ PROMPT_FIX, PR_PREEN_OK },
+
+ /* Superblock flag should be cleared */
+ { PR_0_JOURNAL_HAS_JOURNAL,
+ N_("@S doesn't have has_@j flag, but has ext3 @j %s.\n"),
+ PROMPT_CLEAR, PR_PREEN_OK },
+
+ /* Superblock flag is incorrect */
+ { PR_0_JOURNAL_RECOVER_SET,
+ N_("@S has ext3 needs_recovery flag set, but no @j.\n"),
+ PROMPT_CLEAR, PR_PREEN_OK },
+
+ /* Journal has data, but recovery flag is clear */
+ { PR_0_JOURNAL_RECOVERY_CLEAR,
+ N_("ext3 recovery flag clear, but @j has data.\n"),
+ PROMPT_NONE, 0 },
+
+ /* Ask if we should clear the journal */
+ { PR_0_JOURNAL_RESET_JOURNAL,
+ N_("Clear @j"),
+ PROMPT_NULL, PR_PREEN_NOMSG },
+
+ /* Ask if we should run the journal anyway */
+ { PR_0_JOURNAL_RUN,
+ N_("Run @j anyway"),
+ PROMPT_NULL, 0 },
+
+ /* Run the journal by default */
+ { PR_0_JOURNAL_RUN_DEFAULT,
+ N_("Recovery flag not set in backup @S, so running @j anyway.\n"),
+ PROMPT_NONE, 0 },
+
+ /* Clearing orphan inode */
+ { PR_0_ORPHAN_CLEAR_INODE,
+ N_("%s @o @i %i (uid=%Iu, gid=%Ig, mode=%Im, size=%Is)\n"),
+ PROMPT_NONE, 0 },
+
+ /* Illegal block found in orphaned inode */
+ { PR_0_ORPHAN_ILLEGAL_BLOCK_NUM,
+ N_("@I @b #%B (%b) found in @o @i %i.\n"),
+ PROMPT_NONE, 0 },
+
+ /* Already cleared block found in orphaned inode */
+ { PR_0_ORPHAN_ALREADY_CLEARED_BLOCK,
+ N_("Already cleared @b #%B (%b) found in @o @i %i.\n"),
+ PROMPT_NONE, 0 },
+
+ /* Illegal orphan inode in superblock */
+ { PR_0_ORPHAN_ILLEGAL_HEAD_INODE,
+ N_("@I @o @i %i in @S.\n"),
+ PROMPT_NONE, 0 },
+
+ /* Illegal inode in orphaned inode list */
+ { PR_0_ORPHAN_ILLEGAL_INODE,
+ N_("@I @i %i in @o @i list.\n"),
+ PROMPT_NONE, 0 },
+
+ /* Filesystem revision is 0, but feature flags are set */
+ { PR_0_FS_REV_LEVEL,
+ "@f has feature flag(s) set, but is a revision 0 @f. ",
+ PROMPT_FIX, PR_PREEN_OK | PR_NO_OK },
+
+ /* Journal superblock has an unknown read-only feature flag set */
+ { PR_0_JOURNAL_UNSUPP_ROCOMPAT,
+ N_("Ext3 @j @S has an unknown read-only feature flag set.\n"),
+ PROMPT_ABORT, 0 },
+
+ /* Journal superblock has an unknown incompatible feature flag set */
+ { PR_0_JOURNAL_UNSUPP_INCOMPAT,
+ N_("Ext3 @j @S has an unknown incompatible feature flag set.\n"),
+ PROMPT_ABORT, 0 },
+
+ /* Journal has unsupported version number */
+ { PR_0_JOURNAL_UNSUPP_VERSION,
+ N_("@j version not supported by this e2fsck.\n"),
+ PROMPT_ABORT, 0 },
+
+ /* Moving journal to hidden file */
+ { PR_0_MOVE_JOURNAL,
+ N_("Moving @j from /%s to hidden inode.\n\n"),
+ PROMPT_NONE, 0 },
+
+ /* Error moving journal to hidden file */
+ { PR_0_ERR_MOVE_JOURNAL,
+ N_("Error moving @j: %m\n\n"),
+ PROMPT_NONE, 0 },
+
+ /* Clearing V2 journal superblock */
+ { PR_0_CLEAR_V2_JOURNAL,
+ N_("Found invalid V2 @j @S fields (from V1 journal).\n"
+ "Clearing fields beyond the V1 @j @S...\n\n"),
+ PROMPT_NONE, 0 },
+
+ /* Backup journal inode blocks */
+ { PR_0_BACKUP_JNL,
+ N_("Backing up @j @i @b information.\n\n"),
+ PROMPT_NONE, 0 },
+
+ /* Reserved blocks w/o resize_inode */
+ { PR_0_NONZERO_RESERVED_GDT_BLOCKS,
+ N_("@f does not have resize_@i enabled, but s_reserved_gdt_@bs\n"
+ "is %N; @s zero. "),
+ PROMPT_FIX, 0 },
+
+ /* Resize_inode not enabled, but resize inode is non-zero */
+ { PR_0_CLEAR_RESIZE_INODE,
+ N_("Resize_@i not enabled, but the resize inode is non-zero. "),
+ PROMPT_CLEAR, 0 },
+
+ /* Resize inode invalid */
+ { PR_0_RESIZE_INODE_INVALID,
+ N_("Resize @i not valid. "),
+ PROMPT_RECREATE, 0 },
+
+ /* Pass 1 errors */
+
+ /* Pass 1: Checking inodes, blocks, and sizes */
+ { PR_1_PASS_HEADER,
+ N_("Pass 1: Checking @is, @bs, and sizes\n"),
+ PROMPT_NONE, 0 },
+
+ /* Root directory is not an inode */
+ { PR_1_ROOT_NO_DIR, N_("@r is not a @d. "),
+ PROMPT_CLEAR, 0 },
+
+ /* Root directory has dtime set */
+ { PR_1_ROOT_DTIME,
+ N_("@r has dtime set (probably due to old mke2fs). "),
+ PROMPT_FIX, PR_PREEN_OK },
+
+ /* Reserved inode has bad mode */
+ { PR_1_RESERVED_BAD_MODE,
+ N_("Reserved @i %i %Q has bad mode. "),
+ PROMPT_CLEAR, PR_PREEN_OK },
+
+ /* Deleted inode has zero dtime */
+ { PR_1_ZERO_DTIME,
+ N_("@D @i %i has zero dtime. "),
+ PROMPT_FIX, PR_PREEN_OK },
+
+ /* Inode in use, but dtime set */
+ { PR_1_SET_DTIME,
+ N_("@i %i is in use, but has dtime set. "),
+ PROMPT_FIX, PR_PREEN_OK },
+
+ /* Zero-length directory */
+ { PR_1_ZERO_LENGTH_DIR,
+ N_("@i %i is a @z @d. "),
+ PROMPT_CLEAR, PR_PREEN_OK },
+
+ /* Block bitmap conflicts with some other fs block */
+ { PR_1_BB_CONFLICT,
+ N_("@g %g's @b @B at %b @C.\n"),
+ PROMPT_RELOCATE, 0 },
+
+ /* Inode bitmap conflicts with some other fs block */
+ { PR_1_IB_CONFLICT,
+ N_("@g %g's @i @B at %b @C.\n"),
+ PROMPT_RELOCATE, 0 },
+
+ /* Inode table conflicts with some other fs block */
+ { PR_1_ITABLE_CONFLICT,
+ N_("@g %g's @i table at %b @C.\n"),
+ PROMPT_RELOCATE, 0 },
+
+ /* Block bitmap is on a bad block */
+ { PR_1_BB_BAD_BLOCK,
+ N_("@g %g's @b @B (%b) is bad. "),
+ PROMPT_RELOCATE, 0 },
+
+ /* Inode bitmap is on a bad block */
+ { PR_1_IB_BAD_BLOCK,
+ N_("@g %g's @i @B (%b) is bad. "),
+ PROMPT_RELOCATE, 0 },
+
+ /* Inode has incorrect i_size */
+ { PR_1_BAD_I_SIZE,
+ N_("@i %i, i_size is %Is, @s %N. "),
+ PROMPT_FIX, PR_PREEN_OK },
+
+ /* Inode has incorrect i_blocks */
+ { PR_1_BAD_I_BLOCKS,
+ N_("@i %i, i_@bs is %Ib, @s %N. "),
+ PROMPT_FIX, PR_PREEN_OK },
+
+ /* Illegal blocknumber in inode */
+ { PR_1_ILLEGAL_BLOCK_NUM,
+ N_("@I @b #%B (%b) in @i %i. "),
+ PROMPT_CLEAR, PR_LATCH_BLOCK },
+
+ /* Block number overlaps fs metadata */
+ { PR_1_BLOCK_OVERLAPS_METADATA,
+ N_("@b #%B (%b) overlaps @f metadata in @i %i. "),
+ PROMPT_CLEAR, PR_LATCH_BLOCK },
+
+ /* Inode has illegal blocks (latch question) */
+ { PR_1_INODE_BLOCK_LATCH,
+ N_("@i %i has illegal @b(s). "),
+ PROMPT_CLEAR, 0 },
+
+ /* Too many bad blocks in inode */
+ { PR_1_TOO_MANY_BAD_BLOCKS,
+ N_("Too many illegal @bs in @i %i.\n"),
+ PROMPT_CLEAR_INODE, PR_NO_OK },
+
+ /* Illegal block number in bad block inode */
+ { PR_1_BB_ILLEGAL_BLOCK_NUM,
+ N_("@I @b #%B (%b) in bad @b @i. "),
+ PROMPT_CLEAR, PR_LATCH_BBLOCK },
+
+ /* Bad block inode has illegal blocks (latch question) */
+ { PR_1_INODE_BBLOCK_LATCH,
+ N_("Bad @b @i has illegal @b(s). "),
+ PROMPT_CLEAR, 0 },
+
+ /* Duplicate or bad blocks in use! */
+ { PR_1_DUP_BLOCKS_PREENSTOP,
+ N_("Duplicate or bad @b in use!\n"),
+ PROMPT_NONE, 0 },
+
+ /* Bad block used as bad block indirect block */
+ { PR_1_BBINODE_BAD_METABLOCK,
+ N_("Bad @b %b used as bad @b @i indirect @b. "),
+ PROMPT_CLEAR, PR_LATCH_BBLOCK },
+
+ /* Inconsistency can't be fixed prompt */
+ { PR_1_BBINODE_BAD_METABLOCK_PROMPT,
+ N_("\nThe bad @b @i has probably been corrupted. You probably\n"
+ "should stop now and run ""e2fsck -c"" to scan for bad blocks\n"
+ "in the @f.\n"),
+ PROMPT_CONTINUE, PR_PREEN_NOMSG },
+
+ /* Bad primary block */
+ { PR_1_BAD_PRIMARY_BLOCK,
+ N_("\nIf the @b is really bad, the @f can not be fixed.\n"),
+ PROMPT_NONE, PR_AFTER_CODE, PR_1_BAD_PRIMARY_BLOCK_PROMPT },
+
+ /* Bad primary block prompt */
+ { PR_1_BAD_PRIMARY_BLOCK_PROMPT,
+ N_("You can clear the this @b (and hope for the best) from the\n"
+ "bad @b list and hope that @b is really OK, but there are no\n"
+ "guarantees.\n\n"),
+ PROMPT_CLEAR, PR_PREEN_NOMSG },
+
+ /* Bad primary superblock */
+ { PR_1_BAD_PRIMARY_SUPERBLOCK,
+ N_("The primary @S (%b) is on the bad @b list.\n"),
+ PROMPT_NONE, PR_AFTER_CODE, PR_1_BAD_PRIMARY_BLOCK },
+
+ /* Bad primary block group descriptors */
+ { PR_1_BAD_PRIMARY_GROUP_DESCRIPTOR,
+ N_("Block %b in the primary @g descriptors "
+ "is on the bad @b list\n"),
+ PROMPT_NONE, PR_AFTER_CODE, PR_1_BAD_PRIMARY_BLOCK },
+
+ /* Bad superblock in group */
+ { PR_1_BAD_SUPERBLOCK,
+ N_("Warning: Group %g's @S (%b) is bad.\n"),
+ PROMPT_NONE, PR_PREEN_OK | PR_PREEN_NOMSG },
+
+ /* Bad block group descriptors in group */
+ { PR_1_BAD_GROUP_DESCRIPTORS,
+ N_("Warning: Group %g's copy of the @g descriptors has a bad "
+ "@b (%b).\n"),
+ PROMPT_NONE, PR_PREEN_OK | PR_PREEN_NOMSG },
+
+ /* Block claimed for no reason */
+ { PR_1_PROGERR_CLAIMED_BLOCK,
+ N_("Programming error? @b #%b claimed for no reason in "
+ "process_bad_@b.\n"),
+ PROMPT_NONE, PR_PREEN_OK },
+
+ /* Error allocating blocks for relocating metadata */
+ { PR_1_RELOC_BLOCK_ALLOCATE,
+ N_("@A %N contiguous @b(s) in @b @g %g for %s: %m\n"),
+ PROMPT_NONE, PR_PREEN_OK },
+
+ /* Error allocating block buffer during relocation process */
+ { PR_1_RELOC_MEMORY_ALLOCATE,
+ N_("@A @b buffer for relocating %s\n"),
+ PROMPT_NONE, PR_PREEN_OK },
+
+ /* Relocating metadata group information from X to Y */
+ { PR_1_RELOC_FROM_TO,
+ N_("Relocating @g %g's %s from %b to %c...\n"),
+ PROMPT_NONE, PR_PREEN_OK },
+
+ /* Relocating metatdata group information to X */
+ { PR_1_RELOC_TO,
+ N_("Relocating @g %g's %s to %c...\n"), /* xgettext:no-c-format */
+ PROMPT_NONE, PR_PREEN_OK },
+
+ /* Block read error during relocation process */
+ { PR_1_RELOC_READ_ERR,
+ N_("Warning: could not read @b %b of %s: %m\n"),
+ PROMPT_NONE, PR_PREEN_OK },
+
+ /* Block write error during relocation process */
+ { PR_1_RELOC_WRITE_ERR,
+ N_("Warning: could not write @b %b for %s: %m\n"),
+ PROMPT_NONE, PR_PREEN_OK },
+
+ /* Error allocating inode bitmap */
+ { PR_1_ALLOCATE_IBITMAP_ERROR,
+ "@A @i @B (%N): %m\n",
+ PROMPT_NONE, PR_FATAL },
+
+ /* Error allocating block bitmap */
+ { PR_1_ALLOCATE_BBITMAP_ERROR,
+ "@A @b @B (%N): %m\n",
+ PROMPT_NONE, PR_FATAL },
+
+ /* Error allocating icount structure */
+ { PR_1_ALLOCATE_ICOUNT,
+ N_("@A icount link information: %m\n"),
+ PROMPT_NONE, PR_FATAL },
+
+ /* Error allocating dbcount */
+ { PR_1_ALLOCATE_DBCOUNT,
+ N_("@A @d @b array: %m\n"),
+ PROMPT_NONE, PR_FATAL },
+
+ /* Error while scanning inodes */
+ { PR_1_ISCAN_ERROR,
+ N_("Error while scanning @is (%i): %m\n"),
+ PROMPT_NONE, PR_FATAL },
+
+ /* Error while iterating over blocks */
+ { PR_1_BLOCK_ITERATE,
+ N_("Error while iterating over @bs in @i %i: %m\n"),
+ PROMPT_NONE, PR_FATAL },
+
+ /* Error while storing inode count information */
+ { PR_1_ICOUNT_STORE,
+ N_("Error storing @i count information (@i=%i, count=%N): %m\n"),
+ PROMPT_NONE, PR_FATAL },
+
+ /* Error while storing directory block information */
+ { PR_1_ADD_DBLOCK,
+ N_("Error storing @d @b information "
+ "(@i=%i, @b=%b, num=%N): %m\n"),
+ PROMPT_NONE, PR_FATAL },
+
+ /* Error while reading inode (for clearing) */
+ { PR_1_READ_INODE,
+ N_("Error reading @i %i: %m\n"),
+ PROMPT_NONE, PR_FATAL },
+
+ /* Suppress messages prompt */
+ { PR_1_SUPPRESS_MESSAGES, "", PROMPT_SUPPRESS, PR_NO_OK },
+
+ /* Imagic flag set on an inode when filesystem doesn't support it */
+ { PR_1_SET_IMAGIC,
+ N_("@i %i has imagic flag set. "),
+ PROMPT_CLEAR, 0 },
+
+ /* Immutable flag set on a device or socket inode */
+ { PR_1_SET_IMMUTABLE,
+ N_("Special (@v/socket/fifo/symlink) file (@i %i) has immutable\n"
+ "or append-only flag set. "),
+ PROMPT_CLEAR, PR_PREEN_OK | PR_PREEN_NO | PR_NO_OK },
+
+ /* Compression flag set on an inode when filesystem doesn't support it */
+ { PR_1_COMPR_SET,
+ N_("@i %i has @cion flag set on @f without @cion support. "),
+ PROMPT_CLEAR, 0 },
+
+ /* Non-zero size for device, fifo or socket inode */
+ { PR_1_SET_NONZSIZE,
+ "Special (@v/socket/fifo) @i %i has non-zero size. ",
+ PROMPT_FIX, PR_PREEN_OK },
+
+ /* Filesystem revision is 0, but feature flags are set */
+ { PR_1_FS_REV_LEVEL,
+ "@f has feature flag(s) set, but is a revision 0 @f. ",
+ PROMPT_FIX, PR_PREEN_OK | PR_NO_OK },
+
+ /* Journal inode is not in use, but contains data */
+ { PR_1_JOURNAL_INODE_NOT_CLEAR,
+ "@j @i is not in use, but contains data. ",
+ PROMPT_CLEAR, PR_PREEN_OK },
+
+ /* Journal has bad mode */
+ { PR_1_JOURNAL_BAD_MODE,
+ N_("@j is not regular file. "),
+ PROMPT_FIX, PR_PREEN_OK },
+
+ /* Deal with inodes that were part of orphan linked list */
+ { PR_1_LOW_DTIME,
+ N_("@i %i was part of the orphaned @i list. "),
+ PROMPT_FIX, PR_LATCH_LOW_DTIME, 0 },
+
+ /* Deal with inodes that were part of corrupted orphan linked
+ list (latch question) */
+ { PR_1_ORPHAN_LIST_REFUGEES,
+ N_("@is that were part of a corrupted orphan linked list found. "),
+ PROMPT_FIX, 0 },
+
+ /* Error allocating refcount structure */
+ { PR_1_ALLOCATE_REFCOUNT,
+ "@A refcount structure (%N): %m\n",
+ PROMPT_NONE, PR_FATAL },
+
+ /* Error reading extended attribute block */
+ { PR_1_READ_EA_BLOCK,
+ N_("Error reading @a @b %b for @i %i. "),
+ PROMPT_CLEAR, 0 },
+
+ /* Invalid extended attribute block */
+ { PR_1_BAD_EA_BLOCK,
+ N_("@i %i has a bad @a @b %b. "),
+ PROMPT_CLEAR, 0 },
+
+ /* Error reading Extended Attribute block while fixing refcount */
+ { PR_1_EXTATTR_READ_ABORT,
+ N_("Error reading @a @b %b (%m). "),
+ PROMPT_ABORT, 0 },
+
+ /* Extended attribute reference count incorrect */
+ { PR_1_EXTATTR_REFCOUNT,
+ N_("@a @b %b has reference count %B, should be %N. "),
+ PROMPT_FIX, 0 },
+
+ /* Error writing Extended Attribute block while fixing refcount */
+ { PR_1_EXTATTR_WRITE,
+ N_("Error writing @a @b %b (%m). "),
+ PROMPT_ABORT, 0 },
+
+ /* Multiple EA blocks not supported */
+ { PR_1_EA_MULTI_BLOCK,
+ N_("@a @b %b has h_blocks > 1. "),
+ PROMPT_CLEAR, 0},
+
+ /* Error allocating EA region allocation structure */
+ { PR_1_EA_ALLOC_REGION,
+ N_("Error allocating @a @b %b. "),
+ PROMPT_ABORT, 0},
+
+ /* Error EA allocation collision */
+ { PR_1_EA_ALLOC_COLLISION,
+ N_("@a @b %b is corrupt (allocation collision). "),
+ PROMPT_CLEAR, 0},
+
+ /* Bad extended attribute name */
+ { PR_1_EA_BAD_NAME,
+ N_("@a @b %b is corrupt (invalid name). "),
+ PROMPT_CLEAR, 0},
+
+ /* Bad extended attribute value */
+ { PR_1_EA_BAD_VALUE,
+ N_("@a @b %b is corrupt (invalid value). "),
+ PROMPT_CLEAR, 0},
+
+ /* Inode too big (latch question) */
+ { PR_1_INODE_TOOBIG,
+ N_("@i %i is too big. "), PROMPT_TRUNCATE, 0 },
+
+ /* Directory too big */
+ { PR_1_TOOBIG_DIR,
+ N_("@b #%B (%b) causes @d to be too big. "),
+ PROMPT_CLEAR, PR_LATCH_TOOBIG },
+
+ /* Regular file too big */
+ { PR_1_TOOBIG_REG,
+ N_("@b #%B (%b) causes file to be too big. "),
+ PROMPT_CLEAR, PR_LATCH_TOOBIG },
+
+ /* Symlink too big */
+ { PR_1_TOOBIG_SYMLINK,
+ N_("@b #%B (%b) causes symlink to be too big. "),
+ PROMPT_CLEAR, PR_LATCH_TOOBIG },
+
+ /* INDEX_FL flag set on a non-HTREE filesystem */
+ { PR_1_HTREE_SET,
+ N_("@i %i has INDEX_FL flag set on @f without htree support.\n"),
+ PROMPT_CLEAR_HTREE, PR_PREEN_OK },
+
+ /* INDEX_FL flag set on a non-directory */
+ { PR_1_HTREE_NODIR,
+ N_("@i %i has INDEX_FL flag set but is not a @d.\n"),
+ PROMPT_CLEAR_HTREE, PR_PREEN_OK },
+
+ /* Invalid root node in HTREE directory */
+ { PR_1_HTREE_BADROOT,
+ N_("@h %i has an invalid root node.\n"),
+ PROMPT_CLEAR_HTREE, PR_PREEN_OK },
+
+ /* Unsupported hash version in HTREE directory */
+ { PR_1_HTREE_HASHV,
+ N_("@h %i has an unsupported hash version (%N)\n"),
+ PROMPT_CLEAR_HTREE, PR_PREEN_OK },
+
+ /* Incompatible flag in HTREE root node */
+ { PR_1_HTREE_INCOMPAT,
+ N_("@h %i uses an incompatible htree root node flag.\n"),
+ PROMPT_CLEAR_HTREE, PR_PREEN_OK },
+
+ /* HTREE too deep */
+ { PR_1_HTREE_DEPTH,
+ N_("@h %i has a tree depth (%N) which is too big\n"),
+ PROMPT_CLEAR_HTREE, PR_PREEN_OK },
+
+ /* Bad block has indirect block that conflicts with filesystem block */
+ { PR_1_BB_FS_BLOCK,
+ N_("Bad @b @i has an indirect @b (%b) that conflicts with\n"
+ "@f metadata. "),
+ PROMPT_CLEAR, PR_LATCH_BBLOCK },
+
+ /* Resize inode failed */
+ { PR_1_RESIZE_INODE_CREATE,
+ N_("Resize @i (re)creation failed: %m."),
+ PROMPT_ABORT, 0 },
+
+ /* invalid inode->i_extra_isize */
+ { PR_1_EXTRA_ISIZE,
+ N_("@i %i has a extra size (%IS) which is invalid\n"),
+ PROMPT_FIX, PR_PREEN_OK },
+
+ /* invalid ea entry->e_name_len */
+ { PR_1_ATTR_NAME_LEN,
+ N_("@a in @i %i has a namelen (%N) which is invalid\n"),
+ PROMPT_CLEAR, PR_PREEN_OK },
+
+ /* invalid ea entry->e_value_size */
+ { PR_1_ATTR_VALUE_SIZE,
+ N_("@a in @i %i has a value size (%N) which is invalid\n"),
+ PROMPT_CLEAR, PR_PREEN_OK },
+
+ /* invalid ea entry->e_value_offs */
+ { PR_1_ATTR_VALUE_OFFSET,
+ N_("@a in @i %i has a value offset (%N) which is invalid\n"),
+ PROMPT_CLEAR, PR_PREEN_OK },
+
+ /* invalid ea entry->e_value_block */
+ { PR_1_ATTR_VALUE_BLOCK,
+ N_("@a in @i %i has a value block (%N) which is invalid (must be 0)\n"),
+ PROMPT_CLEAR, PR_PREEN_OK },
+
+ /* invalid ea entry->e_hash */
+ { PR_1_ATTR_HASH,
+ N_("@a in @i %i has a hash (%N) which is invalid (must be 0)\n"),
+ PROMPT_CLEAR, PR_PREEN_OK },
+
+ /* Pass 1b errors */
+
+ /* Pass 1B: Rescan for duplicate/bad blocks */
+ { PR_1B_PASS_HEADER,
+ N_("Duplicate @bs found... invoking duplicate @b passes.\n"
+ "Pass 1B: Rescan for duplicate/bad @bs\n"),
+ PROMPT_NONE, 0 },
+
+ /* Duplicate/bad block(s) header */
+ { PR_1B_DUP_BLOCK_HEADER,
+ N_("Duplicate/bad @b(s) in @i %i:"),
+ PROMPT_NONE, 0 },
+
+ /* Duplicate/bad block(s) in inode */
+ { PR_1B_DUP_BLOCK,
+ " %b",
+ PROMPT_NONE, PR_LATCH_DBLOCK | PR_PREEN_NOHDR },
+
+ /* Duplicate/bad block(s) end */
+ { PR_1B_DUP_BLOCK_END,
+ "\n",
+ PROMPT_NONE, PR_PREEN_NOHDR },
+
+ /* Error while scanning inodes */
+ { PR_1B_ISCAN_ERROR,
+ N_("Error while scanning inodes (%i): %m\n"),
+ PROMPT_NONE, PR_FATAL },
+
+ /* Error allocating inode bitmap */
+ { PR_1B_ALLOCATE_IBITMAP_ERROR,
+ N_("@A @i @B (inode_dup_map): %m\n"),
+ PROMPT_NONE, PR_FATAL },
+
+ /* Error while iterating over blocks */
+ { PR_1B_BLOCK_ITERATE,
+ N_("Error while iterating over @bs in @i %i (%s): %m\n"),
+ PROMPT_NONE, 0 },
+
+ /* Error adjusting EA refcount */
+ { PR_1B_ADJ_EA_REFCOUNT,
+ N_("Error addjusting refcount for @a @b %b (@i %i): %m\n"),
+ PROMPT_NONE, 0 },
+
+
+ /* Pass 1C: Scan directories for inodes with dup blocks. */
+ { PR_1C_PASS_HEADER,
+ N_("Pass 1C: Scan directories for @is with dup @bs.\n"),
+ PROMPT_NONE, 0 },
+
+
+ /* Pass 1D: Reconciling duplicate blocks */
+ { PR_1D_PASS_HEADER,
+ N_("Pass 1D: Reconciling duplicate @bs\n"),
+ PROMPT_NONE, 0 },
+
+ /* File has duplicate blocks */
+ { PR_1D_DUP_FILE,
+ N_("File %Q (@i #%i, mod time %IM) \n"
+ " has %B duplicate @b(s), shared with %N file(s):\n"),
+ PROMPT_NONE, 0 },
+
+ /* List of files sharing duplicate blocks */
+ { PR_1D_DUP_FILE_LIST,
+ N_("\t%Q (@i #%i, mod time %IM)\n"),
+ PROMPT_NONE, 0 },
+
+ /* File sharing blocks with filesystem metadata */
+ { PR_1D_SHARE_METADATA,
+ N_("\t<@f metadata>\n"),
+ PROMPT_NONE, 0 },
+
+ /* Report of how many duplicate/bad inodes */
+ { PR_1D_NUM_DUP_INODES,
+ N_("(There are %N @is containing duplicate/bad @bs.)\n\n"),
+ PROMPT_NONE, 0 },
+
+ /* Duplicated blocks already reassigned or cloned. */
+ { PR_1D_DUP_BLOCKS_DEALT,
+ N_("Duplicated @bs already reassigned or cloned.\n\n"),
+ PROMPT_NONE, 0 },
+
+ /* Clone duplicate/bad blocks? */
+ { PR_1D_CLONE_QUESTION,
+ "", PROMPT_CLONE, PR_NO_OK },
+
+ /* Delete file? */
+ { PR_1D_DELETE_QUESTION,
+ "", PROMPT_DELETE, 0 },
+
+ /* Couldn't clone file (error) */
+ { PR_1D_CLONE_ERROR,
+ N_("Couldn't clone file: %m\n"), PROMPT_NONE, 0 },
+
+ /* Pass 2 errors */
+
+ /* Pass 2: Checking directory structure */
+ { PR_2_PASS_HEADER,
+ N_("Pass 2: Checking @d structure\n"),
+ PROMPT_NONE, 0 },
+
+ /* Bad inode number for '.' */
+ { PR_2_BAD_INODE_DOT,
+ N_("Bad @i number for '.' in @d @i %i.\n"),
+ PROMPT_FIX, 0 },
+
+ /* Directory entry has bad inode number */
+ { PR_2_BAD_INO,
+ N_("@E has bad @i #: %Di.\n"),
+ PROMPT_CLEAR, 0 },
+
+ /* Directory entry has deleted or unused inode */
+ { PR_2_UNUSED_INODE,
+ N_("@E has @D/unused @i %Di. "),
+ PROMPT_CLEAR, PR_PREEN_OK },
+
+ /* Directry entry is link to '.' */
+ { PR_2_LINK_DOT,
+ N_("@E @L to '.' "),
+ PROMPT_CLEAR, 0 },
+
+ /* Directory entry points to inode now located in a bad block */
+ { PR_2_BB_INODE,
+ N_("@E points to @i (%Di) located in a bad @b.\n"),
+ PROMPT_CLEAR, 0 },
+
+ /* Directory entry contains a link to a directory */
+ { PR_2_LINK_DIR,
+ N_("@E @L to @d %P (%Di).\n"),
+ PROMPT_CLEAR, 0 },
+
+ /* Directory entry contains a link to the root directry */
+ { PR_2_LINK_ROOT,
+ N_("@E @L to the @r.\n"),
+ PROMPT_CLEAR, 0 },
+
+ /* Directory entry has illegal characters in its name */
+ { PR_2_BAD_NAME,
+ N_("@E has illegal characters in its name.\n"),
+ PROMPT_FIX, 0 },
+
+ /* Missing '.' in directory inode */
+ { PR_2_MISSING_DOT,
+ N_("Missing '.' in @d @i %i.\n"),
+ PROMPT_FIX, 0 },
+
+ /* Missing '..' in directory inode */
+ { PR_2_MISSING_DOT_DOT,
+ N_("Missing '..' in @d @i %i.\n"),
+ PROMPT_FIX, 0 },
+
+ /* First entry in directory inode doesn't contain '.' */
+ { PR_2_1ST_NOT_DOT,
+ N_("First @e '%Dn' (inode=%Di) in @d @i %i (%p) @s '.'\n"),
+ PROMPT_FIX, 0 },
+
+ /* Second entry in directory inode doesn't contain '..' */
+ { PR_2_2ND_NOT_DOT_DOT,
+ N_("Second @e '%Dn' (inode=%Di) in @d @i %i @s '..'\n"),
+ PROMPT_FIX, 0 },
+
+ /* i_faddr should be zero */
+ { PR_2_FADDR_ZERO,
+ N_("i_faddr @F %IF, @s zero.\n"),
+ PROMPT_CLEAR, 0 },
+
+ /* i_file_acl should be zero */
+ { PR_2_FILE_ACL_ZERO,
+ N_("i_file_acl @F %If, @s zero.\n"),
+ PROMPT_CLEAR, 0 },
+
+ /* i_dir_acl should be zero */
+ { PR_2_DIR_ACL_ZERO,
+ N_("i_dir_acl @F %Id, @s zero.\n"),
+ PROMPT_CLEAR, 0 },
+
+ /* i_frag should be zero */
+ { PR_2_FRAG_ZERO,
+ N_("i_frag @F %N, @s zero.\n"),
+ PROMPT_CLEAR, 0 },
+
+ /* i_fsize should be zero */
+ { PR_2_FSIZE_ZERO,
+ N_("i_fsize @F %N, @s zero.\n"),
+ PROMPT_CLEAR, 0 },
+
+ /* inode has bad mode */
+ { PR_2_BAD_MODE,
+ N_("@i %i (%Q) has a bad mode (%Im).\n"),
+ PROMPT_CLEAR, 0 },
+
+ /* directory corrupted */
+ { PR_2_DIR_CORRUPTED,
+ N_("@d @i %i, @b %B, offset %N: @d corrupted\n"),
+ PROMPT_SALVAGE, 0 },
+
+ /* filename too long */
+ { PR_2_FILENAME_LONG,
+ N_("@d @i %i, @b %B, offset %N: filename too long\n"),
+ PROMPT_TRUNCATE, 0 },
+
+ /* Directory inode has a missing block (hole) */
+ { PR_2_DIRECTORY_HOLE,
+ N_("@d @i %i has an unallocated @b #%B. "),
+ PROMPT_ALLOCATE, 0 },
+
+ /* '.' is not NULL terminated */
+ { PR_2_DOT_NULL_TERM,
+ N_("'.' @d @e in @d @i %i is not NULL terminated\n"),
+ PROMPT_FIX, 0 },
+
+ /* '..' is not NULL terminated */
+ { PR_2_DOT_DOT_NULL_TERM,
+ N_("'..' @d @e in @d @i %i is not NULL terminated\n"),
+ PROMPT_FIX, 0 },
+
+ /* Illegal character device inode */
+ { PR_2_BAD_CHAR_DEV,
+ N_("@i %i (%Q) is an @I character @v.\n"),
+ PROMPT_CLEAR, 0 },
+
+ /* Illegal block device inode */
+ { PR_2_BAD_BLOCK_DEV,
+ N_("@i %i (%Q) is an @I @b @v.\n"),
+ PROMPT_CLEAR, 0 },
+
+ /* Duplicate '.' entry */
+ { PR_2_DUP_DOT,
+ N_("@E is duplicate '.' @e.\n"),
+ PROMPT_FIX, 0 },
+
+ /* Duplicate '..' entry */
+ { PR_2_DUP_DOT_DOT,
+ N_("@E is duplicate '..' @e.\n"),
+ PROMPT_FIX, 0 },
+
+ /* Internal error: couldn't find dir_info */
+ { PR_2_NO_DIRINFO,
+ N_("Internal error: couldn't find dir_info for %i.\n"),
+ PROMPT_NONE, PR_FATAL },
+
+ /* Final rec_len is wrong */
+ { PR_2_FINAL_RECLEN,
+ N_("@E has rec_len of %Dr, should be %N.\n"),
+ PROMPT_FIX, 0 },
+
+ /* Error allocating icount structure */
+ { PR_2_ALLOCATE_ICOUNT,
+ N_("@A icount structure: %m\n"),
+ PROMPT_NONE, PR_FATAL },
+
+ /* Error iterating over directory blocks */
+ { PR_2_DBLIST_ITERATE,
+ N_("Error iterating over @d @bs: %m\n"),
+ PROMPT_NONE, PR_FATAL },
+
+ /* Error reading directory block */
+ { PR_2_READ_DIRBLOCK,
+ N_("Error reading @d @b %b (@i %i): %m\n"),
+ PROMPT_CONTINUE, 0 },
+
+ /* Error writing directory block */
+ { PR_2_WRITE_DIRBLOCK,
+ N_("Error writing @d @b %b (@i %i): %m\n"),
+ PROMPT_CONTINUE, 0 },
+
+ /* Error allocating new directory block */
+ { PR_2_ALLOC_DIRBOCK,
+ N_("@A new @d @b for @i %i (%s): %m\n"),
+ PROMPT_NONE, 0 },
+
+ /* Error deallocating inode */
+ { PR_2_DEALLOC_INODE,
+ N_("Error deallocating @i %i: %m\n"),
+ PROMPT_NONE, PR_FATAL },
+
+ /* Directory entry for '.' is big. Split? */
+ { PR_2_SPLIT_DOT,
+ N_("@d @e for '.' is big. "),
+ PROMPT_SPLIT, PR_NO_OK },
+
+ /* Illegal FIFO inode */
+ { PR_2_BAD_FIFO,
+ N_("@i %i (%Q) is an @I FIFO.\n"),
+ PROMPT_CLEAR, 0 },
+
+ /* Illegal socket inode */
+ { PR_2_BAD_SOCKET,
+ N_("@i %i (%Q) is an @I socket.\n"),
+ PROMPT_CLEAR, 0 },
+
+ /* Directory filetype not set */
+ { PR_2_SET_FILETYPE,
+ N_("Setting filetype for @E to %N.\n"),
+ PROMPT_NONE, PR_PREEN_OK | PR_NO_OK | PR_NO_NOMSG },
+
+ /* Directory filetype incorrect */
+ { PR_2_BAD_FILETYPE,
+ N_("@E has an incorrect filetype (was %Dt, should be %N).\n"),
+ PROMPT_FIX, 0 },
+
+ /* Directory filetype set on filesystem */
+ { PR_2_CLEAR_FILETYPE,
+ N_("@E has filetype set.\n"),
+ PROMPT_CLEAR, PR_PREEN_OK },
+
+ /* Directory filename is null */
+ { PR_2_NULL_NAME,
+ N_("@E has a zero-length name.\n"),
+ PROMPT_CLEAR, 0 },
+
+ /* Invalid symlink */
+ { PR_2_INVALID_SYMLINK,
+ N_("Symlink %Q (@i #%i) is invalid.\n"),
+ PROMPT_CLEAR, 0 },
+
+ /* i_file_acl (extended attribute block) is bad */
+ { PR_2_FILE_ACL_BAD,
+ N_("@a @b @F invalid (%If).\n"),
+ PROMPT_CLEAR, 0 },
+
+ /* Filesystem contains large files, but has no such flag in sb */
+ { PR_2_FEATURE_LARGE_FILES,
+ N_("@f contains large files, but lacks LARGE_FILE flag in @S.\n"),
+ PROMPT_FIX, 0 },
+
+ /* Node in HTREE directory not referenced */
+ { PR_2_HTREE_NOTREF,
+ N_("@p @h %d: node (%B) not referenced\n"),
+ PROMPT_NONE, 0 },
+
+ /* Node in HTREE directory referenced twice */
+ { PR_2_HTREE_DUPREF,
+ N_("@p @h %d: node (%B) referenced twice\n"),
+ PROMPT_NONE, 0 },
+
+ /* Node in HTREE directory has bad min hash */
+ { PR_2_HTREE_MIN_HASH,
+ N_("@p @h %d: node (%B) has bad min hash\n"),
+ PROMPT_NONE, 0 },
+
+ /* Node in HTREE directory has bad max hash */
+ { PR_2_HTREE_MAX_HASH,
+ N_("@p @h %d: node (%B) has bad max hash\n"),
+ PROMPT_NONE, 0 },
+
+ /* Clear invalid HTREE directory */
+ { PR_2_HTREE_CLEAR,
+ N_("Invalid @h %d (%q). "), PROMPT_CLEAR, 0 },
+
+ /* Bad block in htree interior node */
+ { PR_2_HTREE_BADBLK,
+ N_("@p @h %d (%q): bad @b number %b.\n"),
+ PROMPT_CLEAR_HTREE, 0 },
+
+ /* Error adjusting EA refcount */
+ { PR_2_ADJ_EA_REFCOUNT,
+ N_("Error addjusting refcount for @a @b %b (@i %i): %m\n"),
+ PROMPT_NONE, PR_FATAL },
+
+ /* Invalid HTREE root node */
+ { PR_2_HTREE_BAD_ROOT,
+ N_("@p @h %d: root node is invalid\n"),
+ PROMPT_CLEAR_HTREE, PR_PREEN_OK },
+
+ /* Invalid HTREE limit */
+ { PR_2_HTREE_BAD_LIMIT,
+ N_("@p @h %d: node (%B) has bad limit (%N)\n"),
+ PROMPT_CLEAR_HTREE, PR_PREEN_OK },
+
+ /* Invalid HTREE count */
+ { PR_2_HTREE_BAD_COUNT,
+ N_("@p @h %d: node (%B) has bad count (%N)\n"),
+ PROMPT_CLEAR_HTREE, PR_PREEN_OK },
+
+ /* HTREE interior node has out-of-order hashes in table */
+ { PR_2_HTREE_HASH_ORDER,
+ N_("@p @h %d: node (%B) has an unordered hash table\n"),
+ PROMPT_CLEAR_HTREE, PR_PREEN_OK },
+
+ /* Node in HTREE directory has bad depth */
+ { PR_2_HTREE_BAD_DEPTH,
+ N_("@p @h %d: node (%B) has bad depth\n"),
+ PROMPT_NONE, 0 },
+
+ /* Duplicate directory entry found */
+ { PR_2_DUPLICATE_DIRENT,
+ N_("Duplicate @E found. "),
+ PROMPT_CLEAR, 0 },
+
+ /* Non-unique filename found */
+ { PR_2_NON_UNIQUE_FILE, /* xgettext: no-c-format */
+ N_("@E has a non-unique filename.\nRename to %s"),
+ PROMPT_NULL, 0 },
+
+ /* Duplicate directory entry found */
+ { PR_2_REPORT_DUP_DIRENT,
+ N_("Duplicate @e '%Dn' found.\n\tMarking %p (%i) to be rebuilt.\n\n"),
+ PROMPT_NONE, 0 },
+
+ /* Pass 3 errors */
+
+ /* Pass 3: Checking directory connectivity */
+ { PR_3_PASS_HEADER,
+ N_("Pass 3: Checking @d connectivity\n"),
+ PROMPT_NONE, 0 },
+
+ /* Root inode not allocated */
+ { PR_3_NO_ROOT_INODE,
+ N_("@r not allocated. "),
+ PROMPT_ALLOCATE, 0 },
+
+ /* No room in lost+found */
+ { PR_3_EXPAND_LF_DIR,
+ N_("No room in @l @d. "),
+ PROMPT_EXPAND, 0 },
+
+ /* Unconnected directory inode */
+ { PR_3_UNCONNECTED_DIR,
+ N_("Unconnected @d @i %i (%p)\n"),
+ PROMPT_CONNECT, 0 },
+
+ /* /lost+found not found */
+ { PR_3_NO_LF_DIR,
+ N_("/@l not found. "),
+ PROMPT_CREATE, PR_PREEN_OK },
+
+ /* .. entry is incorrect */
+ { PR_3_BAD_DOT_DOT,
+ N_("'..' in %Q (%i) is %P (%j), @s %q (%d).\n"),
+ PROMPT_FIX, 0 },
+
+ /* Bad or non-existent /lost+found. Cannot reconnect */
+ { PR_3_NO_LPF,
+ N_("Bad or non-existent /@l. Cannot reconnect.\n"),
+ PROMPT_NONE, 0 },
+
+ /* Could not expand /lost+found */
+ { PR_3_CANT_EXPAND_LPF,
+ N_("Could not expand /@l: %m\n"),
+ PROMPT_NONE, 0 },
+
+ /* Could not reconnect inode */
+ { PR_3_CANT_RECONNECT,
+ N_("Could not reconnect %i: %m\n"),
+ PROMPT_NONE, 0 },
+
+ /* Error while trying to find /lost+found */
+ { PR_3_ERR_FIND_LPF,
+ N_("Error while trying to find /@l: %m\n"),
+ PROMPT_NONE, 0 },
+
+ /* Error in ext2fs_new_block while creating /lost+found */
+ { PR_3_ERR_LPF_NEW_BLOCK,
+ N_("ext2fs_new_@b: %m while trying to create /@l @d\n"),
+ PROMPT_NONE, 0 },
+
+ /* Error in ext2fs_new_inode while creating /lost+found */
+ { PR_3_ERR_LPF_NEW_INODE,
+ N_("ext2fs_new_@i: %m while trying to create /@l @d\n"),
+ PROMPT_NONE, 0 },
+
+ /* Error in ext2fs_new_dir_block while creating /lost+found */
+ { PR_3_ERR_LPF_NEW_DIR_BLOCK,
+ N_("ext2fs_new_dir_@b: %m while creating new @d @b\n"),
+ PROMPT_NONE, 0 },
+
+ /* Error while writing directory block for /lost+found */
+ { PR_3_ERR_LPF_WRITE_BLOCK,
+ N_("ext2fs_write_dir_@b: %m while writing the @d @b for /@l\n"),
+ PROMPT_NONE, 0 },
+
+ /* Error while adjusting inode count */
+ { PR_3_ADJUST_INODE,
+ N_("Error while adjusting @i count on @i %i\n"),
+ PROMPT_NONE, 0 },
+
+ /* Couldn't fix parent directory -- error */
+ { PR_3_FIX_PARENT_ERR,
+ N_("Couldn't fix parent of @i %i: %m\n\n"),
+ PROMPT_NONE, 0 },
+
+ /* Couldn't fix parent directory -- couldn't find it */
+ { PR_3_FIX_PARENT_NOFIND,
+ N_("Couldn't fix parent of @i %i: Couldn't find parent @d entry\n\n"),
+ PROMPT_NONE, 0 },
+
+ /* Error allocating inode bitmap */
+ { PR_3_ALLOCATE_IBITMAP_ERROR,
+ N_("@A @i @B (%N): %m\n"),
+ PROMPT_NONE, PR_FATAL },
+
+ /* Error creating root directory */
+ { PR_3_CREATE_ROOT_ERROR,
+ N_("Error creating root @d (%s): %m\n"),
+ PROMPT_NONE, PR_FATAL },
+
+ /* Error creating lost and found directory */
+ { PR_3_CREATE_LPF_ERROR,
+ N_("Error creating /@l @d (%s): %m\n"),
+ PROMPT_NONE, PR_FATAL },
+
+ /* Root inode is not directory; aborting */
+ { PR_3_ROOT_NOT_DIR_ABORT,
+ N_("@r is not a @d; aborting.\n"),
+ PROMPT_NONE, PR_FATAL },
+
+ /* Cannot proceed without a root inode. */
+ { PR_3_NO_ROOT_INODE_ABORT,
+ N_("Cannot proceed without a @r.\n"),
+ PROMPT_NONE, PR_FATAL },
+
+ /* Internal error: couldn't find dir_info */
+ { PR_3_NO_DIRINFO,
+ N_("Internal error: couldn't find dir_info for %i.\n"),
+ PROMPT_NONE, PR_FATAL },
+
+ /* Lost+found not a directory */
+ { PR_3_LPF_NOTDIR,
+ N_("/@l is not a @d (ino=%i)\n"),
+ PROMPT_UNLINK, 0 },
+
+ /* Pass 3A Directory Optimization */
+
+ /* Pass 3A: Optimizing directories */
+ { PR_3A_PASS_HEADER,
+ N_("Pass 3A: Optimizing directories\n"),
+ PROMPT_NONE, PR_PREEN_NOMSG },
+
+ /* Error iterating over directories */
+ { PR_3A_OPTIMIZE_ITER,
+ N_("Failed to create dirs_to_hash iterator: %m"),
+ PROMPT_NONE, 0 },
+
+ /* Error rehash directory */
+ { PR_3A_OPTIMIZE_DIR_ERR,
+ N_("Failed to optimize directory %q (%d): %m"),
+ PROMPT_NONE, 0 },
+
+ /* Rehashing dir header */
+ { PR_3A_OPTIMIZE_DIR_HEADER,
+ N_("Optimizing directories: "),
+ PROMPT_NONE, PR_MSG_ONLY },
+
+ /* Rehashing directory %d */
+ { PR_3A_OPTIMIZE_DIR,
+ " %d",
+ PROMPT_NONE, PR_LATCH_OPTIMIZE_DIR | PR_PREEN_NOHDR},
+
+ /* Rehashing dir end */
+ { PR_3A_OPTIMIZE_DIR_END,
+ "\n",
+ PROMPT_NONE, PR_PREEN_NOHDR },
+
+ /* Pass 4 errors */
+
+ /* Pass 4: Checking reference counts */
+ { PR_4_PASS_HEADER,
+ N_("Pass 4: Checking reference counts\n"),
+ PROMPT_NONE, 0 },
+
+ /* Unattached zero-length inode */
+ { PR_4_ZERO_LEN_INODE,
+ "@u @z @i %i. ",
+ PROMPT_CLEAR, PR_PREEN_OK|PR_NO_OK },
+
+ /* Unattached inode */
+ { PR_4_UNATTACHED_INODE,
+ "@u @i %i\n",
+ PROMPT_CONNECT, 0 },
+
+ /* Inode ref count wrong */
+ { PR_4_BAD_REF_COUNT,
+ N_("@i %i ref count is %Il, @s %N. "),
+ PROMPT_FIX, PR_PREEN_OK },
+
+ { PR_4_INCONSISTENT_COUNT,
+ N_("WARNING: PROGRAMMING BUG IN E2FSCK!\n"
+ "\tOR SOME BONEHEAD (YOU) IS CHECKING A MOUNTED (LIVE) FILESYSTEM.\n"
+ "@i_link_info[%i] is %N, @i.i_links_count is %Il. "
+ "They should be the same!\n"),
+ PROMPT_NONE, 0 },
+
+ /* Pass 5 errors */
+
+ /* Pass 5: Checking group summary information */
+ { PR_5_PASS_HEADER,
+ N_("Pass 5: Checking @g summary information\n"),
+ PROMPT_NONE, 0 },
+
+ /* Padding at end of inode bitmap is not set. */
+ { PR_5_INODE_BMAP_PADDING,
+ N_("Padding at end of @i @B is not set. "),
+ PROMPT_FIX, PR_PREEN_OK },
+
+ /* Padding at end of block bitmap is not set. */
+ { PR_5_BLOCK_BMAP_PADDING,
+ N_("Padding at end of @b @B is not set. "),
+ PROMPT_FIX, PR_PREEN_OK },
+
+ /* Block bitmap differences header */
+ { PR_5_BLOCK_BITMAP_HEADER,
+ N_("@b @B differences: "),
+ PROMPT_NONE, PR_PREEN_OK | PR_PREEN_NOMSG},
+
+ /* Block not used, but marked in bitmap */
+ { PR_5_BLOCK_UNUSED,
+ " -%b",
+ PROMPT_NONE, PR_LATCH_BBITMAP | PR_PREEN_OK | PR_PREEN_NOMSG },
+
+ /* Block used, but not marked used in bitmap */
+ { PR_5_BLOCK_USED,
+ " +%b",
+ PROMPT_NONE, PR_LATCH_BBITMAP | PR_PREEN_OK | PR_PREEN_NOMSG },
+
+ /* Block bitmap differences end */
+ { PR_5_BLOCK_BITMAP_END,
+ "\n",
+ PROMPT_FIX, PR_PREEN_OK | PR_PREEN_NOMSG },
+
+ /* Inode bitmap differences header */
+ { PR_5_INODE_BITMAP_HEADER,
+ N_("@i @B differences: "),
+ PROMPT_NONE, PR_PREEN_OK | PR_PREEN_NOMSG },
+
+ /* Inode not used, but marked in bitmap */
+ { PR_5_INODE_UNUSED,
+ " -%i",
+ PROMPT_NONE, PR_LATCH_IBITMAP | PR_PREEN_OK | PR_PREEN_NOMSG },
+
+ /* Inode used, but not marked used in bitmap */
+ { PR_5_INODE_USED,
+ " +%i",
+ PROMPT_NONE, PR_LATCH_IBITMAP | PR_PREEN_OK | PR_PREEN_NOMSG },
+
+ /* Inode bitmap differences end */
+ { PR_5_INODE_BITMAP_END,
+ "\n",
+ PROMPT_FIX, PR_PREEN_OK | PR_PREEN_NOMSG },
+
+ /* Free inodes count for group wrong */
+ { PR_5_FREE_INODE_COUNT_GROUP,
+ N_("Free @is count wrong for @g #%g (%i, counted=%j).\n"),
+ PROMPT_FIX, PR_PREEN_OK | PR_PREEN_NOMSG },
+
+ /* Directories count for group wrong */
+ { PR_5_FREE_DIR_COUNT_GROUP,
+ N_("Directories count wrong for @g #%g (%i, counted=%j).\n"),
+ PROMPT_FIX, PR_PREEN_OK | PR_PREEN_NOMSG },
+
+ /* Free inodes count wrong */
+ { PR_5_FREE_INODE_COUNT,
+ N_("Free @is count wrong (%i, counted=%j).\n"),
+ PROMPT_FIX, PR_PREEN_OK | PR_PREEN_NOMSG },
+
+ /* Free blocks count for group wrong */
+ { PR_5_FREE_BLOCK_COUNT_GROUP,
+ N_("Free @bs count wrong for @g #%g (%b, counted=%c).\n"),
+ PROMPT_FIX, PR_PREEN_OK | PR_PREEN_NOMSG },
+
+ /* Free blocks count wrong */
+ { PR_5_FREE_BLOCK_COUNT,
+ N_("Free @bs count wrong (%b, counted=%c).\n"),
+ PROMPT_FIX, PR_PREEN_OK | PR_PREEN_NOMSG },
+
+ /* Programming error: bitmap endpoints don't match */
+ { PR_5_BMAP_ENDPOINTS,
+ N_("PROGRAMMING ERROR: @f (#%N) @B endpoints (%b, %c) don't "
+ "match calculated @B endpoints (%i, %j)\n"),
+ PROMPT_NONE, PR_FATAL },
+
+ /* Internal error: fudging end of bitmap */
+ { PR_5_FUDGE_BITMAP_ERROR,
+ N_("Internal error: fudging end of bitmap (%N)\n"),
+ PROMPT_NONE, PR_FATAL },
+
+ /* Error copying in replacement inode bitmap */
+ { PR_5_COPY_IBITMAP_ERROR,
+ "Error copying in replacement @i @B: %m\n",
+ PROMPT_NONE, PR_FATAL },
+
+ /* Error copying in replacement block bitmap */
+ { PR_5_COPY_BBITMAP_ERROR,
+ "Error copying in replacement @b @B: %m\n",
+ PROMPT_NONE, PR_FATAL },
+
+ /* Block range not used, but marked in bitmap */
+ { PR_5_BLOCK_RANGE_UNUSED,
+ " -(%b--%c)",
+ PROMPT_NONE, PR_LATCH_BBITMAP | PR_PREEN_OK | PR_PREEN_NOMSG },
+
+ /* Block range used, but not marked used in bitmap */
+ { PR_5_BLOCK_RANGE_USED,
+ " +(%b--%c)",
+ PROMPT_NONE, PR_LATCH_BBITMAP | PR_PREEN_OK | PR_PREEN_NOMSG },
+
+ /* Inode range not used, but marked in bitmap */
+ { PR_5_INODE_RANGE_UNUSED,
+ " -(%i--%j)",
+ PROMPT_NONE, PR_LATCH_IBITMAP | PR_PREEN_OK | PR_PREEN_NOMSG },
+
+ /* Inode range used, but not marked used in bitmap */
+ { PR_5_INODE_RANGE_USED,
+ " +(%i--%j)",
+ PROMPT_NONE, PR_LATCH_IBITMAP | PR_PREEN_OK | PR_PREEN_NOMSG },
+
+ { 0 }
+};
+
+/*
+ * This is the latch flags register. It allows several problems to be
+ * "latched" together. This means that the user has to answer but one
+ * question for the set of problems, and all of the associated
+ * problems will be either fixed or not fixed.
+ */
+static struct latch_descr pr_latch_info[] = {
+ { PR_LATCH_BLOCK, PR_1_INODE_BLOCK_LATCH, 0 },
+ { PR_LATCH_BBLOCK, PR_1_INODE_BBLOCK_LATCH, 0 },
+ { PR_LATCH_IBITMAP, PR_5_INODE_BITMAP_HEADER, PR_5_INODE_BITMAP_END },
+ { PR_LATCH_BBITMAP, PR_5_BLOCK_BITMAP_HEADER, PR_5_BLOCK_BITMAP_END },
+ { PR_LATCH_RELOC, PR_0_RELOCATE_HINT, 0 },
+ { PR_LATCH_DBLOCK, PR_1B_DUP_BLOCK_HEADER, PR_1B_DUP_BLOCK_END },
+ { PR_LATCH_LOW_DTIME, PR_1_ORPHAN_LIST_REFUGEES, 0 },
+ { PR_LATCH_TOOBIG, PR_1_INODE_TOOBIG, 0 },
+ { PR_LATCH_OPTIMIZE_DIR, PR_3A_OPTIMIZE_DIR_HEADER, PR_3A_OPTIMIZE_DIR_END },
+ { -1, 0, 0 },
+};
+
+static const struct e2fsck_problem *find_problem(problem_t code)
+{
+ int i;
+
+ for (i=0; problem_table[i].e2p_code; i++) {
+ if (problem_table[i].e2p_code == code)
+ return &problem_table[i];
+ }
+ return 0;
+}
+
+static struct latch_descr *find_latch(int code)
+{
+ int i;
+
+ for (i=0; pr_latch_info[i].latch_code >= 0; i++) {
+ if (pr_latch_info[i].latch_code == code)
+ return &pr_latch_info[i];
+ }
+ return 0;
+}
+
+int end_problem_latch(e2fsck_t ctx, int mask)
+{
+ struct latch_descr *ldesc;
+ struct problem_context pctx;
+ int answer = -1;
+
+ ldesc = find_latch(mask);
+ if (ldesc->end_message && (ldesc->flags & PRL_LATCHED)) {
+ clear_problem_context(&pctx);
+ answer = fix_problem(ctx, ldesc->end_message, &pctx);
+ }
+ ldesc->flags &= ~(PRL_VARIABLE);
+ return answer;
+}
+
+int set_latch_flags(int mask, int setflags, int clearflags)
+{
+ struct latch_descr *ldesc;
+
+ ldesc = find_latch(mask);
+ if (!ldesc)
+ return -1;
+ ldesc->flags |= setflags;
+ ldesc->flags &= ~clearflags;
+ return 0;
+}
+
+void clear_problem_context(struct problem_context *ctx)
+{
+ memset(ctx, 0, sizeof(struct problem_context));
+ ctx->blkcount = -1;
+ ctx->group = -1;
+}
+
+int fix_problem(e2fsck_t ctx, problem_t code, struct problem_context *pctx)
+{
+ ext2_filsys fs = ctx->fs;
+ const struct e2fsck_problem *ptr;
+ struct latch_descr *ldesc = 0;
+ const char *message;
+ int def_yn, answer, ans;
+ int print_answer = 0;
+ int suppress = 0;
+
+ ptr = find_problem(code);
+ if (!ptr) {
+ printf(_("Unhandled error code (0x%x)!\n"), code);
+ return 0;
+ }
+ def_yn = 1;
+ if ((ptr->flags & PR_NO_DEFAULT) ||
+ ((ptr->flags & PR_PREEN_NO) && (ctx->options & E2F_OPT_PREEN)) ||
+ (ctx->options & E2F_OPT_NO))
+ def_yn= 0;
+
+ /*
+ * Do special latch processing. This is where we ask the
+ * latch question, if it exists
+ */
+ if (ptr->flags & PR_LATCH_MASK) {
+ ldesc = find_latch(ptr->flags & PR_LATCH_MASK);
+ if (ldesc->question && !(ldesc->flags & PRL_LATCHED)) {
+ ans = fix_problem(ctx, ldesc->question, pctx);
+ if (ans == 1)
+ ldesc->flags |= PRL_YES;
+ if (ans == 0)
+ ldesc->flags |= PRL_NO;
+ ldesc->flags |= PRL_LATCHED;
+ }
+ if (ldesc->flags & PRL_SUPPRESS)
+ suppress++;
+ }
+ if ((ptr->flags & PR_PREEN_NOMSG) &&
+ (ctx->options & E2F_OPT_PREEN))
+ suppress++;
+ if ((ptr->flags & PR_NO_NOMSG) &&
+ (ctx->options & E2F_OPT_NO))
+ suppress++;
+ if (!suppress) {
+ message = ptr->e2p_description;
+ if ((ctx->options & E2F_OPT_PREEN) &&
+ !(ptr->flags & PR_PREEN_NOHDR)) {
+ printf("%s: ", ctx->device_name ?
+ ctx->device_name : ctx->filesystem_name);
+ }
+ if (*message)
+ print_e2fsck_message(ctx, _(message), pctx, 1);
+ }
+ if (!(ptr->flags & PR_PREEN_OK) && (ptr->prompt != PROMPT_NONE))
+ preenhalt(ctx);
+
+ if (ptr->flags & PR_FATAL)
+ fatal_error(ctx, 0);
+
+ if (ptr->prompt == PROMPT_NONE) {
+ if (ptr->flags & PR_NOCOLLATE)
+ answer = -1;
+ else
+ answer = def_yn;
+ } else {
+ if (ctx->options & E2F_OPT_PREEN) {
+ answer = def_yn;
+ if (!(ptr->flags & PR_PREEN_NOMSG))
+ print_answer = 1;
+ } else if ((ptr->flags & PR_LATCH_MASK) &&
+ (ldesc->flags & (PRL_YES | PRL_NO))) {
+ if (!suppress)
+ print_answer = 1;
+ if (ldesc->flags & PRL_YES)
+ answer = 1;
+ else
+ answer = 0;
+ } else
+ answer = ask(ctx, _(prompt[(int) ptr->prompt]), def_yn);
+ if (!answer && !(ptr->flags & PR_NO_OK))
+ ext2fs_unmark_valid(fs);
+
+ if (print_answer)
+ printf("%s.\n", answer ?
+ _(preen_msg[(int) ptr->prompt]) : _("IGNORED"));
+
+ }
+
+ if ((ptr->prompt == PROMPT_ABORT) && answer)
+ fatal_error(ctx, 0);
+
+ if (ptr->flags & PR_AFTER_CODE)
+ answer = fix_problem(ctx, ptr->second_code, pctx);
+
+ return answer;
+}
+/*
+ * linux/fs/recovery.c
+ *
+ * Written by Stephen C. Tweedie <sct@redhat.com>, 1999
+ *
+ * Copyright 1999-2000 Red Hat Software --- All Rights Reserved
+ *
+ * This file is part of the Linux kernel and is made available under
+ * the terms of the GNU General Public License, version 2, or at your
+ * option, any later version, incorporated herein by reference.
+ *
+ * Journal recovery routines for the generic filesystem journaling code;
+ * part of the ext2fs journaling system.
+ */
+
+/*
+ * Maintain information about the progress of the recovery job, so that
+ * the different passes can carry information between them.
+ */
+struct recovery_info
+{
+ tid_t start_transaction;
+ tid_t end_transaction;
+
+ int nr_replays;
+ int nr_revokes;
+ int nr_revoke_hits;
+};
+
+enum passtype {PASS_SCAN, PASS_REVOKE, PASS_REPLAY};
+static int do_one_pass(journal_t *journal,
+ struct recovery_info *info, enum passtype pass);
+static int scan_revoke_records(journal_t *, struct buffer_head *,
+ tid_t, struct recovery_info *);
+
+#ifdef __KERNEL__
+
+/* Release readahead buffers after use */
+void journal_brelse_array(struct buffer_head *b[], int n)
+{
+ while (--n >= 0)
+ brelse (b[n]);
+}
+
+
+/*
+ * When reading from the journal, we are going through the block device
+ * layer directly and so there is no readahead being done for us. We
+ * need to implement any readahead ourselves if we want it to happen at
+ * all. Recovery is basically one long sequential read, so make sure we
+ * do the IO in reasonably large chunks.
+ *
+ * This is not so critical that we need to be enormously clever about
+ * the readahead size, though. 128K is a purely arbitrary, good-enough
+ * fixed value.
+ */
+
+#define MAXBUF 8
+static int do_readahead(journal_t *journal, unsigned int start)
+{
+ int err;
+ unsigned int max, nbufs, next;
+ unsigned long blocknr;
+ struct buffer_head *bh;
+
+ struct buffer_head * bufs[MAXBUF];
+
+ /* Do up to 128K of readahead */
+ max = start + (128 * 1024 / journal->j_blocksize);
+ if (max > journal->j_maxlen)
+ max = journal->j_maxlen;
+
+ /* Do the readahead itself. We'll submit MAXBUF buffer_heads at
+ * a time to the block device IO layer. */
+
+ nbufs = 0;
+
+ for (next = start; next < max; next++) {
+ err = journal_bmap(journal, next, &blocknr);
+
+ if (err) {
+ printk (KERN_ERR "JBD: bad block at offset %u\n",
+ next);
+ goto failed;
+ }
+
+ bh = __getblk(journal->j_dev, blocknr, journal->j_blocksize);
+ if (!bh) {
+ err = -ENOMEM;
+ goto failed;
+ }
+
+ if (!buffer_uptodate(bh) && !buffer_locked(bh)) {
+ bufs[nbufs++] = bh;
+ if (nbufs == MAXBUF) {
+ ll_rw_block(READ, nbufs, bufs);
+ journal_brelse_array(bufs, nbufs);
+ nbufs = 0;
+ }
+ } else
+ brelse(bh);
+ }
+
+ if (nbufs)
+ ll_rw_block(READ, nbufs, bufs);
+ err = 0;
+
+failed:
+ if (nbufs)
+ journal_brelse_array(bufs, nbufs);
+ return err;
+}
+
+#endif /* __KERNEL__ */
+
+
+/*
+ * Read a block from the journal
+ */
+
+static int jread(struct buffer_head **bhp, journal_t *journal,
+ unsigned int offset)
+{
+ int err;
+ unsigned long blocknr;
+ struct buffer_head *bh;
+
+ *bhp = NULL;
+
+ J_ASSERT (offset < journal->j_maxlen);
+
+ err = journal_bmap(journal, offset, &blocknr);
+
+ if (err) {
+ printk (KERN_ERR "JBD: bad block at offset %u\n",
+ offset);
+ return err;
+ }
+
+ bh = __getblk(journal->j_dev, blocknr, journal->j_blocksize);
+ if (!bh)
+ return -ENOMEM;
+
+ if (!buffer_uptodate(bh)) {
+ /* If this is a brand new buffer, start readahead.
+ Otherwise, we assume we are already reading it. */
+ if (!buffer_req(bh))
+ do_readahead(journal, offset);
+ wait_on_buffer(bh);
+ }
+
+ if (!buffer_uptodate(bh)) {
+ printk (KERN_ERR "JBD: Failed to read block at offset %u\n",
+ offset);
+ brelse(bh);
+ return -EIO;
+ }
+
+ *bhp = bh;
+ return 0;
+}
+
+
+/*
+ * Count the number of in-use tags in a journal descriptor block.
+ */
+
+static int count_tags(struct buffer_head *bh, int size)
+{
+ char * tagp;
+ journal_block_tag_t * tag;
+ int nr = 0;
+
+ tagp = &bh->b_data[sizeof(journal_header_t)];
+
+ while ((tagp - bh->b_data + sizeof(journal_block_tag_t)) <= size) {
+ tag = (journal_block_tag_t *) tagp;
+
+ nr++;
+ tagp += sizeof(journal_block_tag_t);
+ if (!(tag->t_flags & htonl(JFS_FLAG_SAME_UUID)))
+ tagp += 16;
+
+ if (tag->t_flags & htonl(JFS_FLAG_LAST_TAG))
+ break;
+ }
+
+ return nr;
+}
+
+
+/* Make sure we wrap around the log correctly! */
+#define wrap(journal, var) \
+do { \
+ if (var >= (journal)->j_last) \
+ var -= ((journal)->j_last - (journal)->j_first); \
+} while (0)
+
+/**
+ * int journal_recover(journal_t *journal) - recovers a on-disk journal
+ * @journal: the journal to recover
+ *
+ * The primary function for recovering the log contents when mounting a
+ * journaled device.
+ *
+ * Recovery is done in three passes. In the first pass, we look for the
+ * end of the log. In the second, we assemble the list of revoke
+ * blocks. In the third and final pass, we replay any un-revoked blocks
+ * in the log.
+ */
+int journal_recover(journal_t *journal)
+{
+ int err;
+ journal_superblock_t * sb;
+
+ struct recovery_info info;
+
+ memset(&info, 0, sizeof(info));
+ sb = journal->j_superblock;
+
+ /*
+ * The journal superblock's s_start field (the current log head)
+ * is always zero if, and only if, the journal was cleanly
+ * unmounted.
+ */
+
+ if (!sb->s_start) {
+ jbd_debug(1, "No recovery required, last transaction %d\n",
+ ntohl(sb->s_sequence));
+ journal->j_transaction_sequence = ntohl(sb->s_sequence) + 1;
+ return 0;
+ }
+
+ err = do_one_pass(journal, &info, PASS_SCAN);
+ if (!err)
+ err = do_one_pass(journal, &info, PASS_REVOKE);
+ if (!err)
+ err = do_one_pass(journal, &info, PASS_REPLAY);
+
+ jbd_debug(0, "JBD: recovery, exit status %d, "
+ "recovered transactions %u to %u\n",
+ err, info.start_transaction, info.end_transaction);
+ jbd_debug(0, "JBD: Replayed %d and revoked %d/%d blocks\n",
+ info.nr_replays, info.nr_revoke_hits, info.nr_revokes);
+
+ /* Restart the log at the next transaction ID, thus invalidating
+ * any existing commit records in the log. */
+ journal->j_transaction_sequence = ++info.end_transaction;
+
+ journal_clear_revoke(journal);
+ sync_blockdev(journal->j_fs_dev);
+ return err;
+}
+
+static int do_one_pass(journal_t *journal,
+ struct recovery_info *info, enum passtype pass)
+{
+ unsigned int first_commit_ID, next_commit_ID;
+ unsigned long next_log_block;
+ int err, success = 0;
+ journal_superblock_t * sb;
+ journal_header_t * tmp;
+ struct buffer_head * bh;
+ unsigned int sequence;
+ int blocktype;
+
+ /* Precompute the maximum metadata descriptors in a descriptor block */
+ int MAX_BLOCKS_PER_DESC;
+ MAX_BLOCKS_PER_DESC = ((journal->j_blocksize-sizeof(journal_header_t))
+ / sizeof(journal_block_tag_t));
+
+ /*
+ * First thing is to establish what we expect to find in the log
+ * (in terms of transaction IDs), and where (in terms of log
+ * block offsets): query the superblock.
+ */
+
+ sb = journal->j_superblock;
+ next_commit_ID = ntohl(sb->s_sequence);
+ next_log_block = ntohl(sb->s_start);
+
+ first_commit_ID = next_commit_ID;
+ if (pass == PASS_SCAN)
+ info->start_transaction = first_commit_ID;
+
+ jbd_debug(1, "Starting recovery pass %d\n", pass);
+
+ /*
+ * Now we walk through the log, transaction by transaction,
+ * making sure that each transaction has a commit block in the
+ * expected place. Each complete transaction gets replayed back
+ * into the main filesystem.
+ */
+
+ while (1) {
+ int flags;
+ char * tagp;
+ journal_block_tag_t * tag;
+ struct buffer_head * obh;
+ struct buffer_head * nbh;
+
+ /* If we already know where to stop the log traversal,
+ * check right now that we haven't gone past the end of
+ * the log. */
+
+ if (pass != PASS_SCAN)
+ if (tid_geq(next_commit_ID, info->end_transaction))
+ break;
+
+ jbd_debug(2, "Scanning for sequence ID %u at %lu/%lu\n",
+ next_commit_ID, next_log_block, journal->j_last);
+
+ /* Skip over each chunk of the transaction looking
+ * either the next descriptor block or the final commit
+ * record. */
+
+ jbd_debug(3, "JBD: checking block %ld\n", next_log_block);
+ err = jread(&bh, journal, next_log_block);
+ if (err)
+ goto failed;
+
+ next_log_block++;
+ wrap(journal, next_log_block);
+
+ /* What kind of buffer is it?
+ *
+ * If it is a descriptor block, check that it has the
+ * expected sequence number. Otherwise, we're all done
+ * here. */
+
+ tmp = (journal_header_t *)bh->b_data;
+
+ if (tmp->h_magic != htonl(JFS_MAGIC_NUMBER)) {
+ brelse(bh);
+ break;
+ }
+
+ blocktype = ntohl(tmp->h_blocktype);
+ sequence = ntohl(tmp->h_sequence);
+ jbd_debug(3, "Found magic %d, sequence %d\n",
+ blocktype, sequence);
+
+ if (sequence != next_commit_ID) {
+ brelse(bh);
+ break;
+ }
+
+ /* OK, we have a valid descriptor block which matches
+ * all of the sequence number checks. What are we going
+ * to do with it? That depends on the pass... */
+
+ switch(blocktype) {
+ case JFS_DESCRIPTOR_BLOCK:
+ /* If it is a valid descriptor block, replay it
+ * in pass REPLAY; otherwise, just skip over the
+ * blocks it describes. */
+ if (pass != PASS_REPLAY) {
+ next_log_block +=
+ count_tags(bh, journal->j_blocksize);
+ wrap(journal, next_log_block);
+ brelse(bh);
+ continue;
+ }
+
+ /* A descriptor block: we can now write all of
+ * the data blocks. Yay, useful work is finally
+ * getting done here! */
+
+ tagp = &bh->b_data[sizeof(journal_header_t)];
+ while ((tagp - bh->b_data +sizeof(journal_block_tag_t))
+ <= journal->j_blocksize) {
+ unsigned long io_block;
+
+ tag = (journal_block_tag_t *) tagp;
+ flags = ntohl(tag->t_flags);
+
+ io_block = next_log_block++;
+ wrap(journal, next_log_block);
+ err = jread(&obh, journal, io_block);
+ if (err) {
+ /* Recover what we can, but
+ * report failure at the end. */
+ success = err;
+ printk (KERN_ERR
+ "JBD: IO error %d recovering "
+ "block %ld in log\n",
+ err, io_block);
+ } else {
+ unsigned long blocknr;
+
+ J_ASSERT(obh != NULL);
+ blocknr = ntohl(tag->t_blocknr);
+
+ /* If the block has been
+ * revoked, then we're all done
+ * here. */
+ if (journal_test_revoke
+ (journal, blocknr,
+ next_commit_ID)) {
+ brelse(obh);
+ ++info->nr_revoke_hits;
+ goto skip_write;
+ }
+
+ /* Find a buffer for the new
+ * data being restored */
+ nbh = __getblk(journal->j_fs_dev,
+ blocknr,
+ journal->j_blocksize);
+ if (nbh == NULL) {
+ printk(KERN_ERR
+ "JBD: Out of memory "
+ "during recovery.\n");
+ err = -ENOMEM;
+ brelse(bh);
+ brelse(obh);
+ goto failed;
+ }
+
+ lock_buffer(nbh);
+ memcpy(nbh->b_data, obh->b_data,
+ journal->j_blocksize);
+ if (flags & JFS_FLAG_ESCAPE) {
+ *((unsigned int *)bh->b_data) =
+ htonl(JFS_MAGIC_NUMBER);
+ }
+
+ BUFFER_TRACE(nbh, "marking dirty");
+ set_buffer_uptodate(nbh);
+ mark_buffer_dirty(nbh);
+ BUFFER_TRACE(nbh, "marking uptodate");
+ ++info->nr_replays;
+ /* ll_rw_block(WRITE, 1, &nbh); */
+ unlock_buffer(nbh);
+ brelse(obh);
+ brelse(nbh);
+ }
+
+ skip_write:
+ tagp += sizeof(journal_block_tag_t);
+ if (!(flags & JFS_FLAG_SAME_UUID))
+ tagp += 16;
+
+ if (flags & JFS_FLAG_LAST_TAG)
+ break;
+ }
+
+ brelse(bh);
+ continue;
+
+ case JFS_COMMIT_BLOCK:
+ /* Found an expected commit block: not much to
+ * do other than move on to the next sequence
+ * number. */
+ brelse(bh);
+ next_commit_ID++;
+ continue;
+
+ case JFS_REVOKE_BLOCK:
+ /* If we aren't in the REVOKE pass, then we can
+ * just skip over this block. */
+ if (pass != PASS_REVOKE) {
+ brelse(bh);
+ continue;
+ }
+
+ err = scan_revoke_records(journal, bh,
+ next_commit_ID, info);
+ brelse(bh);
+ if (err)
+ goto failed;
+ continue;
+
+ default:
+ jbd_debug(3, "Unrecognised magic %d, end of scan.\n",
+ blocktype);
+ goto done;
+ }
+ }
+
+ done:
+ /*
+ * We broke out of the log scan loop: either we came to the
+ * known end of the log or we found an unexpected block in the
+ * log. If the latter happened, then we know that the "current"
+ * transaction marks the end of the valid log.
+ */
+
+ if (pass == PASS_SCAN)
+ info->end_transaction = next_commit_ID;
+ else {
+ /* It's really bad news if different passes end up at
+ * different places (but possible due to IO errors). */
+ if (info->end_transaction != next_commit_ID) {
+ printk (KERN_ERR "JBD: recovery pass %d ended at "
+ "transaction %u, expected %u\n",
+ pass, next_commit_ID, info->end_transaction);
+ if (!success)
+ success = -EIO;
+ }
+ }
+
+ return success;
+
+ failed:
+ return err;
+}
+
+
+/* Scan a revoke record, marking all blocks mentioned as revoked. */
+
+static int scan_revoke_records(journal_t *journal, struct buffer_head *bh,
+ tid_t sequence, struct recovery_info *info)
+{
+ journal_revoke_header_t *header;
+ int offset, max;
+
+ header = (journal_revoke_header_t *) bh->b_data;
+ offset = sizeof(journal_revoke_header_t);
+ max = ntohl(header->r_count);
+
+ while (offset < max) {
+ unsigned long blocknr;
+ int err;
+
+ blocknr = ntohl(* ((unsigned int *) (bh->b_data+offset)));
+ offset += 4;
+ err = journal_set_revoke(journal, blocknr, sequence);
+ if (err)
+ return err;
+ ++info->nr_revokes;
+ }
+ return 0;
+}
+/*
+ * region.c --- code which manages allocations within a region.
+ *
+ * Copyright (C) 2001 Theodore Ts'o.
+ *
+ * %Begin-Header%
+ * This file may be redistributed under the terms of the GNU Public
+ * License.
+ * %End-Header%
+ */
+
+struct region_el {
+ region_addr_t start;
+ region_addr_t end;
+ struct region_el *next;
+};
+
+struct region_struct {
+ region_addr_t min;
+ region_addr_t max;
+ struct region_el *allocated;
+};
+
+region_t region_create(region_addr_t min, region_addr_t max)
+{
+ region_t region;
+
+ region = malloc(sizeof(struct region_struct));
+ if (!region)
+ return NULL;
+ memset(region, 0, sizeof(struct region_struct));
+ region->min = min;
+ region->max = max;
+ return region;
+}
+
+void region_free(region_t region)
+{
+ struct region_el *r, *next;
+
+ for (r = region->allocated; r; r = next) {
+ next = r->next;
+ free(r);
+ }
+ memset(region, 0, sizeof(struct region_struct));
+ free(region);
+}
+
+int region_allocate(region_t region, region_addr_t start, int n)
+{
+ struct region_el *r, *new_region, *prev, *next;
+ region_addr_t end;
+
+ end = start+n;
+ if ((start < region->min) || (end > region->max))
+ return -1;
+ if (n == 0)
+ return 1;
+
+ /*
+ * Search through the linked list. If we find that it
+ * conflicts witih something that's already allocated, return
+ * 1; if we can find an existing region which we can grow, do
+ * so. Otherwise, stop when we find the appropriate place
+ * insert a new region element into the linked list.
+ */
+ for (r = region->allocated, prev=NULL; r; prev = r, r = r->next) {
+ if (((start >= r->start) && (start < r->end)) ||
+ ((end > r->start) && (end <= r->end)) ||
+ ((start <= r->start) && (end >= r->end)))
+ return 1;
+ if (end == r->start) {
+ r->start = start;
+ return 0;
+ }
+ if (start == r->end) {
+ if ((next = r->next)) {
+ if (end > next->start)
+ return 1;
+ if (end == next->start) {
+ r->end = next->end;
+ r->next = next->next;
+ free(next);
+ return 0;
+ }
+ }
+ r->end = end;
+ return 0;
+ }
+ if (start < r->start)
+ break;
+ }
+ /*
+ * Insert a new region element structure into the linked list
+ */
+ new_region = malloc(sizeof(struct region_el));
+ if (!new_region)
+ return -1;
+ new_region->start = start;
+ new_region->end = start + n;
+ new_region->next = r;
+ if (prev)
+ prev->next = new_region;
+ else
+ region->allocated = new_region;
+ return 0;
+}
+
+/*
+ * rehash.c --- rebuild hash tree directories
+ *
+ * Copyright (C) 2002 Theodore Ts'o
+ *
+ * %Begin-Header%
+ * This file may be redistributed under the terms of the GNU Public
+ * License.
+ * %End-Header%
+ *
+ * This algorithm is designed for simplicity of implementation and to
+ * pack the directory as much as possible. It however requires twice
+ * as much memory as the size of the directory. The maximum size
+ * directory supported using a 4k blocksize is roughly a gigabyte, and
+ * so there may very well be problems with machines that don't have
+ * virtual memory, and obscenely large directories.
+ *
+ * An alternate algorithm which is much more disk intensive could be
+ * written, and probably will need to be written in the future. The
+ * design goals of such an algorithm are: (a) use (roughly) constant
+ * amounts of memory, no matter how large the directory, (b) the
+ * directory must be safe at all times, even if e2fsck is interrupted
+ * in the middle, (c) we must use minimal amounts of extra disk
+ * blocks. This pretty much requires an incremental approach, where
+ * we are reading from one part of the directory, and inserting into
+ * the front half. So the algorithm will have to keep track of a
+ * moving block boundary between the new tree and the old tree, and
+ * files will need to be moved from the old directory and inserted
+ * into the new tree. If the new directory requires space which isn't
+ * yet available, blocks from the beginning part of the old directory
+ * may need to be moved to the end of the directory to make room for
+ * the new tree:
+ *
+ * --------------------------------------------------------
+ * | new tree | | old tree |
+ * --------------------------------------------------------
+ * ^ ptr ^ptr
+ * tail new head old
+ *
+ * This is going to be a pain in the tuckus to implement, and will
+ * require a lot more disk accesses. So I'm going to skip it for now;
+ * it's only really going to be an issue for really, really big
+ * filesystems (when we reach the level of tens of millions of files
+ * in a single directory). It will probably be easier to simply
+ * require that e2fsck use VM first.
+ */
+
+struct fill_dir_struct {
+ char *buf;
+ struct ext2_inode *inode;
+ int err;
+ e2fsck_t ctx;
+ struct hash_entry *harray;
+ int max_array, num_array;
+ int dir_size;
+ int compress;
+ ino_t parent;
+};
+
+struct hash_entry {
+ ext2_dirhash_t hash;
+ ext2_dirhash_t minor_hash;
+ struct ext2_dir_entry *dir;
+};
+
+struct out_dir {
+ int num;
+ int max;
+ char *buf;
+ ext2_dirhash_t *hashes;
+};
+
+static int fill_dir_block(ext2_filsys fs,
+ blk_t *block_nr,
+ e2_blkcnt_t blockcnt,
+ blk_t ref_block EXT2FS_ATTR((unused)),
+ int ref_offset EXT2FS_ATTR((unused)),
+ void *priv_data)
+{
+ struct fill_dir_struct *fd = (struct fill_dir_struct *) priv_data;
+ struct hash_entry *new_array, *ent;
+ struct ext2_dir_entry *dirent;
+ char *dir;
+ unsigned int offset, dir_offset;
+
+ if (blockcnt < 0)
+ return 0;
+
+ offset = blockcnt * fs->blocksize;
+ if (offset + fs->blocksize > fd->inode->i_size) {
+ fd->err = EXT2_ET_DIR_CORRUPTED;
+ return BLOCK_ABORT;
+ }
+ dir = (fd->buf+offset);
+ if (HOLE_BLKADDR(*block_nr)) {
+ memset(dir, 0, fs->blocksize);
+ dirent = (struct ext2_dir_entry *) dir;
+ dirent->rec_len = fs->blocksize;
+ } else {
+ fd->err = ext2fs_read_dir_block(fs, *block_nr, dir);
+ if (fd->err)
+ return BLOCK_ABORT;
+ }
+ /* While the directory block is "hot", index it. */
+ dir_offset = 0;
+ while (dir_offset < fs->blocksize) {
+ dirent = (struct ext2_dir_entry *) (dir + dir_offset);
+ if (((dir_offset + dirent->rec_len) > fs->blocksize) ||
+ (dirent->rec_len < 8) ||
+ ((dirent->rec_len % 4) != 0) ||
+ (((dirent->name_len & 0xFF)+8) > dirent->rec_len)) {
+ fd->err = EXT2_ET_DIR_CORRUPTED;
+ return BLOCK_ABORT;
+ }
+ dir_offset += dirent->rec_len;
+ if (dirent->inode == 0)
+ continue;
+ if (!fd->compress && ((dirent->name_len&0xFF) == 1) &&
+ (dirent->name[0] == '.'))
+ continue;
+ if (!fd->compress && ((dirent->name_len&0xFF) == 2) &&
+ (dirent->name[0] == '.') && (dirent->name[1] == '.')) {
+ fd->parent = dirent->inode;
+ continue;
+ }
+ if (fd->num_array >= fd->max_array) {
+ new_array = realloc(fd->harray,
+ sizeof(struct hash_entry) * (fd->max_array+500));
+ if (!new_array) {
+ fd->err = ENOMEM;
+ return BLOCK_ABORT;
+ }
+ fd->harray = new_array;
+ fd->max_array += 500;
+ }
+ ent = fd->harray + fd->num_array++;
+ ent->dir = dirent;
+ fd->dir_size += EXT2_DIR_REC_LEN(dirent->name_len & 0xFF);
+ if (fd->compress)
+ ent->hash = ent->minor_hash = 0;
+ else {
+ fd->err = ext2fs_dirhash(fs->super->s_def_hash_version,
+ dirent->name,
+ dirent->name_len & 0xFF,
+ fs->super->s_hash_seed,
+ &ent->hash, &ent->minor_hash);
+ if (fd->err)
+ return BLOCK_ABORT;
+ }
+ }
+
+ return 0;
+}
+
+/* Used for sorting the hash entry */
+static EXT2_QSORT_TYPE name_cmp(const void *a, const void *b)
+{
+ const struct hash_entry *he_a = (const struct hash_entry *) a;
+ const struct hash_entry *he_b = (const struct hash_entry *) b;
+ int ret;
+ int min_len;
+
+ min_len = he_a->dir->name_len;
+ if (min_len > he_b->dir->name_len)
+ min_len = he_b->dir->name_len;
+
+ ret = strncmp(he_a->dir->name, he_b->dir->name, min_len);
+ if (ret == 0) {
+ if (he_a->dir->name_len > he_b->dir->name_len)
+ ret = 1;
+ else if (he_a->dir->name_len < he_b->dir->name_len)
+ ret = -1;
+ else
+ ret = he_b->dir->inode - he_a->dir->inode;
+ }
+ return ret;
+}
+
+/* Used for sorting the hash entry */
+static EXT2_QSORT_TYPE hash_cmp(const void *a, const void *b)
+{
+ const struct hash_entry *he_a = (const struct hash_entry *) a;
+ const struct hash_entry *he_b = (const struct hash_entry *) b;
+ int ret;
+
+ if (he_a->hash > he_b->hash)
+ ret = 1;
+ else if (he_a->hash < he_b->hash)
+ ret = -1;
+ else {
+ if (he_a->minor_hash > he_b->minor_hash)
+ ret = 1;
+ else if (he_a->minor_hash < he_b->minor_hash)
+ ret = -1;
+ else
+ ret = name_cmp(a, b);
+ }
+ return ret;
+}
+
+static errcode_t alloc_size_dir(ext2_filsys fs, struct out_dir *outdir,
+ int blocks)
+{
+ void *new_mem;
+
+ if (outdir->max) {
+ new_mem = realloc(outdir->buf, blocks * fs->blocksize);
+ if (!new_mem)
+ return ENOMEM;
+ outdir->buf = new_mem;
+ new_mem = realloc(outdir->hashes,
+ blocks * sizeof(ext2_dirhash_t));
+ if (!new_mem)
+ return ENOMEM;
+ outdir->hashes = new_mem;
+ } else {
+ outdir->buf = malloc(blocks * fs->blocksize);
+ outdir->hashes = malloc(blocks * sizeof(ext2_dirhash_t));
+ outdir->num = 0;
+ }
+ outdir->max = blocks;
+ return 0;
+}
+
+static void free_out_dir(struct out_dir *outdir)
+{
+ if (outdir->buf)
+ free(outdir->buf);
+ if (outdir->hashes)
+ free(outdir->hashes);
+ outdir->max = 0;
+ outdir->num =0;
+}
+
+static errcode_t get_next_block(ext2_filsys fs, struct out_dir *outdir,
+ char ** ret)
+{
+ errcode_t retval;
+
+ if (outdir->num >= outdir->max) {
+ retval = alloc_size_dir(fs, outdir, outdir->max + 50);
+ if (retval)
+ return retval;
+ }
+ *ret = outdir->buf + (outdir->num++ * fs->blocksize);
+ memset(*ret, 0, fs->blocksize);
+ return 0;
+}
+
+/*
+ * This function is used to make a unique filename. We do this by
+ * appending ~0, and then incrementing the number. However, we cannot
+ * expand the length of the filename beyond the padding available in
+ * the directory entry.
+ */
+static void mutate_name(char *str, __u16 *len)
+{
+ int i;
+ __u16 l = *len & 0xFF, h = *len & 0xff00;
+
+ /*
+ * First check to see if it looks the name has been mutated
+ * already
+ */
+ for (i = l-1; i > 0; i--) {
+ if (!isdigit(str[i]))
+ break;
+ }
+ if ((i == l-1) || (str[i] != '~')) {
+ if (((l-1) & 3) < 2)
+ l += 2;
+ else
+ l = (l+3) & ~3;
+ str[l-2] = '~';
+ str[l-1] = '0';
+ *len = l | h;
+ return;
+ }
+ for (i = l-1; i >= 0; i--) {
+ if (isdigit(str[i])) {
+ if (str[i] == '9')
+ str[i] = '0';
+ else {
+ str[i]++;
+ return;
+ }
+ continue;
+ }
+ if (i == 1) {
+ if (str[0] == 'z')
+ str[0] = 'A';
+ else if (str[0] == 'Z') {
+ str[0] = '~';
+ str[1] = '0';
+ } else
+ str[0]++;
+ } else if (i > 0) {
+ str[i] = '1';
+ str[i-1] = '~';
+ } else {
+ if (str[0] == '~')
+ str[0] = 'a';
+ else
+ str[0]++;
+ }
+ break;
+ }
+}
+
+static int duplicate_search_and_fix(e2fsck_t ctx, ext2_filsys fs,
+ ext2_ino_t ino,
+ struct fill_dir_struct *fd)
+{
+ struct problem_context pctx;
+ struct hash_entry *ent, *prev;
+ int i, j;
+ int fixed = 0;
+ char new_name[256];
+ __u16 new_len;
+
+ clear_problem_context(&pctx);
+ pctx.ino = ino;
+
+ for (i=1; i < fd->num_array; i++) {
+ ent = fd->harray + i;
+ prev = ent - 1;
+ if (!ent->dir->inode ||
+ ((ent->dir->name_len & 0xFF) !=
+ (prev->dir->name_len & 0xFF)) ||
+ (strncmp(ent->dir->name, prev->dir->name,
+ ent->dir->name_len & 0xFF)))
+ continue;
+ pctx.dirent = ent->dir;
+ if ((ent->dir->inode == prev->dir->inode) &&
+ fix_problem(ctx, PR_2_DUPLICATE_DIRENT, &pctx)) {
+ e2fsck_adjust_inode_count(ctx, ent->dir->inode, -1);
+ ent->dir->inode = 0;
+ fixed++;
+ continue;
+ }
+ memcpy(new_name, ent->dir->name, ent->dir->name_len & 0xFF);
+ new_len = ent->dir->name_len;
+ mutate_name(new_name, &new_len);
+ for (j=0; j < fd->num_array; j++) {
+ if ((i==j) ||
+ ((ent->dir->name_len & 0xFF) !=
+ (fd->harray[j].dir->name_len & 0xFF)) ||
+ (strncmp(new_name, fd->harray[j].dir->name,
+ new_len & 0xFF)))
+ continue;
+ mutate_name(new_name, &new_len);
+
+ j = -1;
+ }
+ new_name[new_len & 0xFF] = 0;
+ pctx.str = new_name;
+ if (fix_problem(ctx, PR_2_NON_UNIQUE_FILE, &pctx)) {
+ memcpy(ent->dir->name, new_name, new_len & 0xFF);
+ ent->dir->name_len = new_len;
+ ext2fs_dirhash(fs->super->s_def_hash_version,
+ ent->dir->name,
+ ent->dir->name_len & 0xFF,
+ fs->super->s_hash_seed,
+ &ent->hash, &ent->minor_hash);
+ fixed++;
+ }
+ }
+ return fixed;
+}
+
+
+static errcode_t copy_dir_entries(ext2_filsys fs,
+ struct fill_dir_struct *fd,
+ struct out_dir *outdir)
+{
+ errcode_t retval;
+ char *block_start;
+ struct hash_entry *ent;
+ struct ext2_dir_entry *dirent;
+ int i, rec_len, left;
+ ext2_dirhash_t prev_hash;
+ int offset;
+
+ outdir->max = 0;
+ retval = alloc_size_dir(fs, outdir,
+ (fd->dir_size / fs->blocksize) + 2);
+ if (retval)
+ return retval;
+ outdir->num = fd->compress ? 0 : 1;
+ offset = 0;
+ outdir->hashes[0] = 0;
+ prev_hash = 1;
+ if ((retval = get_next_block(fs, outdir, &block_start)))
+ return retval;
+ dirent = (struct ext2_dir_entry *) block_start;
+ left = fs->blocksize;
+ for (i=0; i < fd->num_array; i++) {
+ ent = fd->harray + i;
+ if (ent->dir->inode == 0)
+ continue;
+ rec_len = EXT2_DIR_REC_LEN(ent->dir->name_len & 0xFF);
+ if (rec_len > left) {
+ if (left)
+ dirent->rec_len += left;
+ if ((retval = get_next_block(fs, outdir,
+ &block_start)))
+ return retval;
+ offset = 0;
+ }
+ left = fs->blocksize - offset;
+ dirent = (struct ext2_dir_entry *) (block_start + offset);
+ if (offset == 0) {
+ if (ent->hash == prev_hash)
+ outdir->hashes[outdir->num-1] = ent->hash | 1;
+ else
+ outdir->hashes[outdir->num-1] = ent->hash;
+ }
+ dirent->inode = ent->dir->inode;
+ dirent->name_len = ent->dir->name_len;
+ dirent->rec_len = rec_len;
+ memcpy(dirent->name, ent->dir->name, dirent->name_len & 0xFF);
+ offset += rec_len;
+ left -= rec_len;
+ if (left < 12) {
+ dirent->rec_len += left;
+ offset += left;
+ left = 0;
+ }
+ prev_hash = ent->hash;
+ }
+ if (left)
+ dirent->rec_len += left;
+
+ return 0;
+}
+
+
+static struct ext2_dx_root_info *set_root_node(ext2_filsys fs, char *buf,
+ ext2_ino_t ino, ext2_ino_t parent)
+{
+ struct ext2_dir_entry *dir;
+ struct ext2_dx_root_info *root;
+ struct ext2_dx_countlimit *limits;
+ int filetype = 0;
+
+ if (fs->super->s_feature_incompat & EXT2_FEATURE_INCOMPAT_FILETYPE)
+ filetype = EXT2_FT_DIR << 8;
+
+ memset(buf, 0, fs->blocksize);
+ dir = (struct ext2_dir_entry *) buf;
+ dir->inode = ino;
+ dir->name[0] = '.';
+ dir->name_len = 1 | filetype;
+ dir->rec_len = 12;
+ dir = (struct ext2_dir_entry *) (buf + 12);
+ dir->inode = parent;
+ dir->name[0] = '.';
+ dir->name[1] = '.';
+ dir->name_len = 2 | filetype;
+ dir->rec_len = fs->blocksize - 12;
+
+ root = (struct ext2_dx_root_info *) (buf+24);
+ root->reserved_zero = 0;
+ root->hash_version = fs->super->s_def_hash_version;
+ root->info_length = 8;
+ root->indirect_levels = 0;
+ root->unused_flags = 0;
+
+ limits = (struct ext2_dx_countlimit *) (buf+32);
+ limits->limit = (fs->blocksize - 32) / sizeof(struct ext2_dx_entry);
+ limits->count = 0;
+
+ return root;
+}
+
+
+static struct ext2_dx_entry *set_int_node(ext2_filsys fs, char *buf)
+{
+ struct ext2_dir_entry *dir;
+ struct ext2_dx_countlimit *limits;
+
+ memset(buf, 0, fs->blocksize);
+ dir = (struct ext2_dir_entry *) buf;
+ dir->inode = 0;
+ dir->rec_len = fs->blocksize;
+
+ limits = (struct ext2_dx_countlimit *) (buf+8);
+ limits->limit = (fs->blocksize - 8) / sizeof(struct ext2_dx_entry);
+ limits->count = 0;
+
+ return (struct ext2_dx_entry *) limits;
+}
+
+/*
+ * This function takes the leaf nodes which have been written in
+ * outdir, and populates the root node and any necessary interior nodes.
+ */
+static errcode_t calculate_tree(ext2_filsys fs,
+ struct out_dir *outdir,
+ ext2_ino_t ino,
+ ext2_ino_t parent)
+{
+ struct ext2_dx_root_info *root_info;
+ struct ext2_dx_entry *root, *dx_ent = 0;
+ struct ext2_dx_countlimit *root_limit, *limit;
+ errcode_t retval;
+ char * block_start;
+ int i, c1, c2, nblks;
+ int limit_offset, root_offset;
+
+ root_info = set_root_node(fs, outdir->buf, ino, parent);
+ root_offset = limit_offset = ((char *) root_info - outdir->buf) +
+ root_info->info_length;
+ root_limit = (struct ext2_dx_countlimit *) (outdir->buf + limit_offset);
+ c1 = root_limit->limit;
+ nblks = outdir->num;
+
+ /* Write out the pointer blocks */
+ if (nblks-1 <= c1) {
+ /* Just write out the root block, and we're done */
+ root = (struct ext2_dx_entry *) (outdir->buf + root_offset);
+ for (i=1; i < nblks; i++) {
+ root->block = ext2fs_cpu_to_le32(i);
+ if (i != 1)
+ root->hash =
+ ext2fs_cpu_to_le32(outdir->hashes[i]);
+ root++;
+ c1--;
+ }
+ } else {
+ c2 = 0;
+ limit = 0;
+ root_info->indirect_levels = 1;
+ for (i=1; i < nblks; i++) {
+ if (c1 == 0)
+ return ENOSPC;
+ if (c2 == 0) {
+ if (limit)
+ limit->limit = limit->count =
+ ext2fs_cpu_to_le16(limit->limit);
+ root = (struct ext2_dx_entry *)
+ (outdir->buf + root_offset);
+ root->block = ext2fs_cpu_to_le32(outdir->num);
+ if (i != 1)
+ root->hash =
+ ext2fs_cpu_to_le32(outdir->hashes[i]);
+ if ((retval = get_next_block(fs, outdir,
+ &block_start)))
+ return retval;
+ dx_ent = set_int_node(fs, block_start);
+ limit = (struct ext2_dx_countlimit *) dx_ent;
+ c2 = limit->limit;
+ root_offset += sizeof(struct ext2_dx_entry);
+ c1--;
+ }
+ dx_ent->block = ext2fs_cpu_to_le32(i);
+ if (c2 != limit->limit)
+ dx_ent->hash =
+ ext2fs_cpu_to_le32(outdir->hashes[i]);
+ dx_ent++;
+ c2--;
+ }
+ limit->count = ext2fs_cpu_to_le16(limit->limit - c2);
+ limit->limit = ext2fs_cpu_to_le16(limit->limit);
+ }
+ root_limit = (struct ext2_dx_countlimit *) (outdir->buf + limit_offset);
+ root_limit->count = ext2fs_cpu_to_le16(root_limit->limit - c1);
+ root_limit->limit = ext2fs_cpu_to_le16(root_limit->limit);
+
+ return 0;
+}
+
+struct write_dir_struct {
+ struct out_dir *outdir;
+ errcode_t err;
+ e2fsck_t ctx;
+ int cleared;
+};
+
+/*
+ * Helper function which writes out a directory block.
+ */
+static int write_dir_block(ext2_filsys fs,
+ blk_t *block_nr,
+ e2_blkcnt_t blockcnt,
+ blk_t ref_block EXT2FS_ATTR((unused)),
+ int ref_offset EXT2FS_ATTR((unused)),
+ void *priv_data)
+{
+ struct write_dir_struct *wd = (struct write_dir_struct *) priv_data;
+ blk_t blk;
+ char *dir;
+
+ if (*block_nr == 0)
+ return 0;
+ if (blockcnt >= wd->outdir->num) {
+ e2fsck_read_bitmaps(wd->ctx);
+ blk = *block_nr;
+ ext2fs_unmark_block_bitmap(wd->ctx->block_found_map, blk);
+ ext2fs_block_alloc_stats(fs, blk, -1);
+ *block_nr = 0;
+ wd->cleared++;
+ return BLOCK_CHANGED;
+ }
+ if (blockcnt < 0)
+ return 0;
+
+ dir = wd->outdir->buf + (blockcnt * fs->blocksize);
+ wd->err = ext2fs_write_dir_block(fs, *block_nr, dir);
+ if (wd->err)
+ return BLOCK_ABORT;
+ return 0;
+}
+
+static errcode_t write_directory(e2fsck_t ctx, ext2_filsys fs,
+ struct out_dir *outdir,
+ ext2_ino_t ino, int compress)
+{
+ struct write_dir_struct wd;
+ errcode_t retval;
+ struct ext2_inode inode;
+
+ retval = e2fsck_expand_directory(ctx, ino, -1, outdir->num);
+ if (retval)
+ return retval;
+
+ wd.outdir = outdir;
+ wd.err = 0;
+ wd.ctx = ctx;
+ wd.cleared = 0;
+
+ retval = ext2fs_block_iterate2(fs, ino, 0, 0,
+ write_dir_block, &wd);
+ if (retval)
+ return retval;
+ if (wd.err)
+ return wd.err;
+
+ e2fsck_read_inode(ctx, ino, &inode, "rehash_dir");
+ if (compress)
+ inode.i_flags &= ~EXT2_INDEX_FL;
+ else
+ inode.i_flags |= EXT2_INDEX_FL;
+ inode.i_size = outdir->num * fs->blocksize;
+ inode.i_blocks -= (fs->blocksize / 512) * wd.cleared;
+ e2fsck_write_inode(ctx, ino, &inode, "rehash_dir");
+
+ return 0;
+}
+
+errcode_t e2fsck_rehash_dir(e2fsck_t ctx, ext2_ino_t ino)
+{
+ ext2_filsys fs = ctx->fs;
+ errcode_t retval;
+ struct ext2_inode inode;
+ char *dir_buf = 0;
+ struct fill_dir_struct fd;
+ struct out_dir outdir;
+
+ outdir.max = outdir.num = 0;
+ outdir.buf = 0;
+ outdir.hashes = 0;
+ e2fsck_read_inode(ctx, ino, &inode, "rehash_dir");
+
+ retval = ENOMEM;
+ fd.harray = 0;
+ dir_buf = malloc(inode.i_size);
+ if (!dir_buf)
+ goto errout;
+
+ fd.max_array = inode.i_size / 32;
+ fd.num_array = 0;
+ fd.harray = malloc(fd.max_array * sizeof(struct hash_entry));
+ if (!fd.harray)
+ goto errout;
+
+ fd.ctx = ctx;
+ fd.buf = dir_buf;
+ fd.inode = &inode;
+ fd.err = 0;
+ fd.dir_size = 0;
+ fd.compress = 0;
+ if (!(fs->super->s_feature_compat & EXT2_FEATURE_COMPAT_DIR_INDEX) ||
+ (inode.i_size / fs->blocksize) < 2)
+ fd.compress = 1;
+ fd.parent = 0;
+
+ /* Read in the entire directory into memory */
+ retval = ext2fs_block_iterate2(fs, ino, 0, 0,
+ fill_dir_block, &fd);
+ if (fd.err) {
+ retval = fd.err;
+ goto errout;
+ }
+
+#if 0
+ printf("%d entries (%d bytes) found in inode %d\n",
+ fd.num_array, fd.dir_size, ino);
+#endif
+
+ /* Sort the list */
+resort:
+ if (fd.compress)
+ qsort(fd.harray+2, fd.num_array-2,
+ sizeof(struct hash_entry), name_cmp);
+ else
+ qsort(fd.harray, fd.num_array,
+ sizeof(struct hash_entry), hash_cmp);
+
+ /*
+ * Look for duplicates
+ */
+ if (duplicate_search_and_fix(ctx, fs, ino, &fd))
+ goto resort;
+
+ if (ctx->options & E2F_OPT_NO) {
+ retval = 0;
+ goto errout;
+ }
+
+ /*
+ * Copy the directory entries. In a htree directory these
+ * will become the leaf nodes.
+ */
+ retval = copy_dir_entries(fs, &fd, &outdir);
+ if (retval)
+ goto errout;
+
+ free(dir_buf); dir_buf = 0;
+
+ if (!fd.compress) {
+ /* Calculate the interior nodes */
+ retval = calculate_tree(fs, &outdir, ino, fd.parent);
+ if (retval)
+ goto errout;
+ }
+
+ retval = write_directory(ctx, fs, &outdir, ino, fd.compress);
+ if (retval)
+ goto errout;
+
+errout:
+ if (dir_buf)
+ free(dir_buf);
+ if (fd.harray)
+ free(fd.harray);
+
+ free_out_dir(&outdir);
+ return retval;
+}
+
+void e2fsck_rehash_directories(e2fsck_t ctx)
+{
+ struct problem_context pctx;
+#ifdef RESOURCE_TRACK
+ struct resource_track rtrack;
+#endif
+ struct dir_info *dir;
+ ext2_u32_iterate iter;
+ ext2_ino_t ino;
+ errcode_t retval;
+ int i, cur, max, all_dirs, dir_index, first = 1;
+
+#ifdef RESOURCE_TRACK
+ init_resource_track(&rtrack);
+#endif
+
+ all_dirs = ctx->options & E2F_OPT_COMPRESS_DIRS;
+
+ if (!ctx->dirs_to_hash && !all_dirs)
+ return;
+
+ e2fsck_get_lost_and_found(ctx, 0);
+
+ clear_problem_context(&pctx);
+
+ dir_index = ctx->fs->super->s_feature_compat & EXT2_FEATURE_COMPAT_DIR_INDEX;
+ cur = 0;
+ if (all_dirs) {
+ i = 0;
+ max = e2fsck_get_num_dirinfo(ctx);
+ } else {
+ retval = ext2fs_u32_list_iterate_begin(ctx->dirs_to_hash,
+ &iter);
+ if (retval) {
+ pctx.errcode = retval;
+ fix_problem(ctx, PR_3A_OPTIMIZE_ITER, &pctx);
+ return;
+ }
+ max = ext2fs_u32_list_count(ctx->dirs_to_hash);
+ }
+ while (1) {
+ if (all_dirs) {
+ if ((dir = e2fsck_dir_info_iter(ctx, &i)) == 0)
+ break;
+ ino = dir->ino;
+ } else {
+ if (!ext2fs_u32_list_iterate(iter, &ino))
+ break;
+ }
+ if (ino == ctx->lost_and_found)
+ continue;
+ pctx.dir = ino;
+ if (first) {
+ fix_problem(ctx, PR_3A_PASS_HEADER, &pctx);
+ first = 0;
+ }
+#if 0
+ fix_problem(ctx, PR_3A_OPTIMIZE_DIR, &pctx);
+#endif
+ pctx.errcode = e2fsck_rehash_dir(ctx, ino);
+ if (pctx.errcode) {
+ end_problem_latch(ctx, PR_LATCH_OPTIMIZE_DIR);
+ fix_problem(ctx, PR_3A_OPTIMIZE_DIR_ERR, &pctx);
+ }
+ if (ctx->progress && !ctx->progress_fd)
+ e2fsck_simple_progress(ctx, "Rebuilding directory",
+ 100.0 * (float) (++cur) / (float) max, ino);
+ }
+ end_problem_latch(ctx, PR_LATCH_OPTIMIZE_DIR);
+ if (!all_dirs)
+ ext2fs_u32_list_iterate_end(iter);
+
+ if (ctx->dirs_to_hash)
+ ext2fs_u32_list_free(ctx->dirs_to_hash);
+ ctx->dirs_to_hash = 0;
+
+#ifdef RESOURCE_TRACK
+ if (ctx->options & E2F_OPT_TIME2) {
+ e2fsck_clear_progbar(ctx);
+ print_resource_track("Pass 3A", &rtrack);
+ }
+#endif
+}
+/*
+ * linux/fs/revoke.c
+ *
+ * Written by Stephen C. Tweedie <sct@redhat.com>, 2000
+ *
+ * Copyright 2000 Red Hat corp --- All Rights Reserved
+ *
+ * This file is part of the Linux kernel and is made available under
+ * the terms of the GNU General Public License, version 2, or at your
+ * option, any later version, incorporated herein by reference.
+ *
+ * Journal revoke routines for the generic filesystem journaling code;
+ * part of the ext2fs journaling system.
+ *
+ * Revoke is the mechanism used to prevent old log records for deleted
+ * metadata from being replayed on top of newer data using the same
+ * blocks. The revoke mechanism is used in two separate places:
+ *
+ * + Commit: during commit we write the entire list of the current
+ * transaction's revoked blocks to the journal
+ *
+ * + Recovery: during recovery we record the transaction ID of all
+ * revoked blocks. If there are multiple revoke records in the log
+ * for a single block, only the last one counts, and if there is a log
+ * entry for a block beyond the last revoke, then that log entry still
+ * gets replayed.
+ *
+ * We can get interactions between revokes and new log data within a
+ * single transaction:
+ *
+ * Block is revoked and then journaled:
+ * The desired end result is the journaling of the new block, so we
+ * cancel the revoke before the transaction commits.
+ *
+ * Block is journaled and then revoked:
+ * The revoke must take precedence over the write of the block, so we
+ * need either to cancel the journal entry or to write the revoke
+ * later in the log than the log block. In this case, we choose the
+ * latter: journaling a block cancels any revoke record for that block
+ * in the current transaction, so any revoke for that block in the
+ * transaction must have happened after the block was journaled and so
+ * the revoke must take precedence.
+ *
+ * Block is revoked and then written as data:
+ * The data write is allowed to succeed, but the revoke is _not_
+ * cancelled. We still need to prevent old log records from
+ * overwriting the new data. We don't even need to clear the revoke
+ * bit here.
+ *
+ * Revoke information on buffers is a tri-state value:
+ *
+ * RevokeValid clear: no cached revoke status, need to look it up
+ * RevokeValid set, Revoked clear:
+ * buffer has not been revoked, and cancel_revoke
+ * need do nothing.
+ * RevokeValid set, Revoked set:
+ * buffer has been revoked.
+ */
+
+static kmem_cache_t *revoke_record_cache;
+static kmem_cache_t *revoke_table_cache;
+
+/* Each revoke record represents one single revoked block. During
+ journal replay, this involves recording the transaction ID of the
+ last transaction to revoke this block. */
+
+struct jbd_revoke_record_s
+{
+ struct list_head hash;
+ tid_t sequence; /* Used for recovery only */
+ unsigned long blocknr;
+};
+
+
+/* The revoke table is just a simple hash table of revoke records. */
+struct jbd_revoke_table_s
+{
+ /* It is conceivable that we might want a larger hash table
+ * for recovery. Must be a power of two. */
+ int hash_size;
+ int hash_shift;
+ struct list_head *hash_table;
+};
+
+
+#ifdef __KERNEL__
+static void write_one_revoke_record(journal_t *, transaction_t *,
+ struct journal_head **, int *,
+ struct jbd_revoke_record_s *);
+static void flush_descriptor(journal_t *, struct journal_head *, int);
+#endif
+
+/* Utility functions to maintain the revoke table */
+
+/* Borrowed from buffer.c: this is a tried and tested block hash function */
+static inline int hash(journal_t *journal, unsigned long block)
+{
+ struct jbd_revoke_table_s *table = journal->j_revoke;
+ int hash_shift = table->hash_shift;
+
+ return ((block << (hash_shift - 6)) ^
+ (block >> 13) ^
+ (block << (hash_shift - 12))) & (table->hash_size - 1);
+}
+
+static int insert_revoke_hash(journal_t *journal, unsigned long blocknr,
+ tid_t seq)
+{
+ struct list_head *hash_list;
+ struct jbd_revoke_record_s *record;
+
+#ifdef __KERNEL__
+repeat:
+#endif
+ record = kmem_cache_alloc(revoke_record_cache, GFP_NOFS);
+ if (!record)
+ goto oom;
+
+ record->sequence = seq;
+ record->blocknr = blocknr;
+ hash_list = &journal->j_revoke->hash_table[hash(journal, blocknr)];
+ list_add(&record->hash, hash_list);
+ return 0;
+
+oom:
+#ifdef __KERNEL__
+ if (!journal_oom_retry)
+ return -ENOMEM;
+ jbd_debug(1, "ENOMEM in " __FUNCTION__ ", retrying.\n");
+ current->policy |= SCHED_YIELD;
+ schedule();
+ goto repeat;
+#else
+ return -ENOMEM;
+#endif
+}
+
+/* Find a revoke record in the journal's hash table. */
+
+static struct jbd_revoke_record_s *find_revoke_record(journal_t *journal,
+ unsigned long blocknr)
+{
+ struct list_head *hash_list;
+ struct jbd_revoke_record_s *record;
+
+ hash_list = &journal->j_revoke->hash_table[hash(journal, blocknr)];
+
+ record = (struct jbd_revoke_record_s *) hash_list->next;
+ while (&(record->hash) != hash_list) {
+ if (record->blocknr == blocknr)
+ return record;
+ record = (struct jbd_revoke_record_s *) record->hash.next;
+ }
+ return NULL;
+}
+
+int journal_init_revoke_caches(void)
+{
+ revoke_record_cache = kmem_cache_create("revoke_record",
+ sizeof(struct jbd_revoke_record_s),
+ 0, SLAB_HWCACHE_ALIGN, NULL, NULL);
+ if (revoke_record_cache == 0)
+ return -ENOMEM;
+
+ revoke_table_cache = kmem_cache_create("revoke_table",
+ sizeof(struct jbd_revoke_table_s),
+ 0, 0, NULL, NULL);
+ if (revoke_table_cache == 0) {
+ kmem_cache_destroy(revoke_record_cache);
+ revoke_record_cache = NULL;
+ return -ENOMEM;
+ }
+ return 0;
+}
+
+void journal_destroy_revoke_caches(void)
+{
+ kmem_cache_destroy(revoke_record_cache);
+ revoke_record_cache = 0;
+ kmem_cache_destroy(revoke_table_cache);
+ revoke_table_cache = 0;
+}
+
+/* Initialise the revoke table for a given journal to a given size. */
+
+int journal_init_revoke(journal_t *journal, int hash_size)
+{
+ int shift, tmp;
+
+ J_ASSERT (journal->j_revoke == NULL);
+
+ journal->j_revoke = kmem_cache_alloc(revoke_table_cache, GFP_KERNEL);
+ if (!journal->j_revoke)
+ return -ENOMEM;
+
+ /* Check that the hash_size is a power of two */
+ J_ASSERT ((hash_size & (hash_size-1)) == 0);
+
+ journal->j_revoke->hash_size = hash_size;
+
+ shift = 0;
+ tmp = hash_size;
+ while((tmp >>= 1UL) != 0UL)
+ shift++;
+ journal->j_revoke->hash_shift = shift;
+
+ journal->j_revoke->hash_table =
+ kmalloc(hash_size * sizeof(struct list_head), GFP_KERNEL);
+ if (!journal->j_revoke->hash_table) {
+ kmem_cache_free(revoke_table_cache, journal->j_revoke);
+ journal->j_revoke = NULL;
+ return -ENOMEM;
+ }
+
+ for (tmp = 0; tmp < hash_size; tmp++)
+ INIT_LIST_HEAD(&journal->j_revoke->hash_table[tmp]);
+
+ return 0;
+}
+
+/* Destoy a journal's revoke table. The table must already be empty! */
+
+void journal_destroy_revoke(journal_t *journal)
+{
+ struct jbd_revoke_table_s *table;
+ struct list_head *hash_list;
+ int i;
+
+ table = journal->j_revoke;
+ if (!table)
+ return;
+
+ for (i=0; i<table->hash_size; i++) {
+ hash_list = &table->hash_table[i];
+ J_ASSERT (list_empty(hash_list));
+ }
+
+ kfree(table->hash_table);
+ kmem_cache_free(revoke_table_cache, table);
+ journal->j_revoke = NULL;
+}
+
+
+#ifdef __KERNEL__
+
+/*
+ * journal_revoke: revoke a given buffer_head from the journal. This
+ * prevents the block from being replayed during recovery if we take a
+ * crash after this current transaction commits. Any subsequent
+ * metadata writes of the buffer in this transaction cancel the
+ * revoke.
+ *
+ * Note that this call may block --- it is up to the caller to make
+ * sure that there are no further calls to journal_write_metadata
+ * before the revoke is complete. In ext3, this implies calling the
+ * revoke before clearing the block bitmap when we are deleting
+ * metadata.
+ *
+ * Revoke performs a journal_forget on any buffer_head passed in as a
+ * parameter, but does _not_ forget the buffer_head if the bh was only
+ * found implicitly.
+ *
+ * bh_in may not be a journalled buffer - it may have come off
+ * the hash tables without an attached journal_head.
+ *
+ * If bh_in is non-zero, journal_revoke() will decrement its b_count
+ * by one.
+ */
+
+int journal_revoke(handle_t *handle, unsigned long blocknr,
+ struct buffer_head *bh_in)
+{
+ struct buffer_head *bh = NULL;
+ journal_t *journal;
+ kdev_t dev;
+ int err;
+
+ if (bh_in)
+ BUFFER_TRACE(bh_in, "enter");
+
+ journal = handle->h_transaction->t_journal;
+ if (!journal_set_features(journal, 0, 0, JFS_FEATURE_INCOMPAT_REVOKE)){
+ J_ASSERT (!"Cannot set revoke feature!");
+ return -EINVAL;
+ }
+
+ dev = journal->j_fs_dev;
+ bh = bh_in;
+
+ if (!bh) {
+ bh = get_hash_table(dev, blocknr, journal->j_blocksize);
+ if (bh)
+ BUFFER_TRACE(bh, "found on hash");
+ }
+#ifdef JBD_EXPENSIVE_CHECKING
+ else {
+ struct buffer_head *bh2;
+
+ /* If there is a different buffer_head lying around in
+ * memory anywhere... */
+ bh2 = get_hash_table(dev, blocknr, journal->j_blocksize);
+ if (bh2) {
+ /* ... and it has RevokeValid status... */
+ if ((bh2 != bh) &&
+ test_bit(BH_RevokeValid, &bh2->b_state))
+ /* ...then it better be revoked too,
+ * since it's illegal to create a revoke
+ * record against a buffer_head which is
+ * not marked revoked --- that would
+ * risk missing a subsequent revoke
+ * cancel. */
+ J_ASSERT_BH(bh2, test_bit(BH_Revoked, &
+ bh2->b_state));
+ __brelse(bh2);
+ }
+ }
+#endif
+
+ /* We really ought not ever to revoke twice in a row without
+ first having the revoke cancelled: it's illegal to free a
+ block twice without allocating it in between! */
+ if (bh) {
+ J_ASSERT_BH(bh, !test_bit(BH_Revoked, &bh->b_state));
+ set_bit(BH_Revoked, &bh->b_state);
+ set_bit(BH_RevokeValid, &bh->b_state);
+ if (bh_in) {
+ BUFFER_TRACE(bh_in, "call journal_forget");
+ journal_forget(handle, bh_in);
+ } else {
+ BUFFER_TRACE(bh, "call brelse");
+ __brelse(bh);
+ }
+ }
+
+ lock_journal(journal);
+ jbd_debug(2, "insert revoke for block %lu, bh_in=%p\n", blocknr, bh_in);
+ err = insert_revoke_hash(journal, blocknr,
+ handle->h_transaction->t_tid);
+ unlock_journal(journal);
+ BUFFER_TRACE(bh_in, "exit");
+ return err;
+}
+
+/*
+ * Cancel an outstanding revoke. For use only internally by the
+ * journaling code (called from journal_get_write_access).
+ *
+ * We trust the BH_Revoked bit on the buffer if the buffer is already
+ * being journaled: if there is no revoke pending on the buffer, then we
+ * don't do anything here.
+ *
+ * This would break if it were possible for a buffer to be revoked and
+ * discarded, and then reallocated within the same transaction. In such
+ * a case we would have lost the revoked bit, but when we arrived here
+ * the second time we would still have a pending revoke to cancel. So,
+ * do not trust the Revoked bit on buffers unless RevokeValid is also
+ * set.
+ *
+ * The caller must have the journal locked.
+ */
+int journal_cancel_revoke(handle_t *handle, struct journal_head *jh)
+{
+ struct jbd_revoke_record_s *record;
+ journal_t *journal = handle->h_transaction->t_journal;
+ int need_cancel;
+ int did_revoke = 0; /* akpm: debug */
+ struct buffer_head *bh = jh2bh(jh);
+
+ jbd_debug(4, "journal_head %p, cancelling revoke\n", jh);
+
+ /* Is the existing Revoke bit valid? If so, we trust it, and
+ * only perform the full cancel if the revoke bit is set. If
+ * not, we can't trust the revoke bit, and we need to do the
+ * full search for a revoke record. */
+ if (test_and_set_bit(BH_RevokeValid, &bh->b_state))
+ need_cancel = (test_and_clear_bit(BH_Revoked, &bh->b_state));
+ else {
+ need_cancel = 1;
+ clear_bit(BH_Revoked, &bh->b_state);
+ }
+
+ if (need_cancel) {
+ record = find_revoke_record(journal, bh->b_blocknr);
+ if (record) {
+ jbd_debug(4, "cancelled existing revoke on "
+ "blocknr %lu\n", bh->b_blocknr);
+ list_del(&record->hash);
+ kmem_cache_free(revoke_record_cache, record);
+ did_revoke = 1;
+ }
+ }
+
+#ifdef JBD_EXPENSIVE_CHECKING
+ /* There better not be one left behind by now! */
+ record = find_revoke_record(journal, bh->b_blocknr);
+ J_ASSERT_JH(jh, record == NULL);
+#endif
+
+ /* Finally, have we just cleared revoke on an unhashed
+ * buffer_head? If so, we'd better make sure we clear the
+ * revoked status on any hashed alias too, otherwise the revoke
+ * state machine will get very upset later on. */
+ if (need_cancel && !bh->b_pprev) {
+ struct buffer_head *bh2;
+ bh2 = get_hash_table(bh->b_dev, bh->b_blocknr, bh->b_size);
+ if (bh2) {
+ clear_bit(BH_Revoked, &bh2->b_state);
+ __brelse(bh2);
+ }
+ }
+
+ return did_revoke;
+}
+
+
+/*
+ * Write revoke records to the journal for all entries in the current
+ * revoke hash, deleting the entries as we go.
+ *
+ * Called with the journal lock held.
+ */
+
+void journal_write_revoke_records(journal_t *journal,
+ transaction_t *transaction)
+{
+ struct journal_head *descriptor;
+ struct jbd_revoke_record_s *record;
+ struct jbd_revoke_table_s *revoke;
+ struct list_head *hash_list;
+ int i, offset, count;
+
+ descriptor = NULL;
+ offset = 0;
+ count = 0;
+ revoke = journal->j_revoke;
+
+ for (i = 0; i < revoke->hash_size; i++) {
+ hash_list = &revoke->hash_table[i];
+
+ while (!list_empty(hash_list)) {
+ record = (struct jbd_revoke_record_s *)
+ hash_list->next;
+ write_one_revoke_record(journal, transaction,
+ &descriptor, &offset,
+ record);
+ count++;
+ list_del(&record->hash);
+ kmem_cache_free(revoke_record_cache, record);
+ }
+ }
+ if (descriptor)
+ flush_descriptor(journal, descriptor, offset);
+ jbd_debug(1, "Wrote %d revoke records\n", count);
+}
+
+/*
+ * Write out one revoke record. We need to create a new descriptor
+ * block if the old one is full or if we have not already created one.
+ */
+
+static void write_one_revoke_record(journal_t *journal,
+ transaction_t *transaction,
+ struct journal_head **descriptorp,
+ int *offsetp,
+ struct jbd_revoke_record_s *record)
+{
+ struct journal_head *descriptor;
+ int offset;
+ journal_header_t *header;
+
+ /* If we are already aborting, this all becomes a noop. We
+ still need to go round the loop in
+ journal_write_revoke_records in order to free all of the
+ revoke records: only the IO to the journal is omitted. */
+ if (is_journal_aborted(journal))
+ return;
+
+ descriptor = *descriptorp;
+ offset = *offsetp;
+
+ /* Make sure we have a descriptor with space left for the record */
+ if (descriptor) {
+ if (offset == journal->j_blocksize) {
+ flush_descriptor(journal, descriptor, offset);
+ descriptor = NULL;
+ }
+ }
+
+ if (!descriptor) {
+ descriptor = journal_get_descriptor_buffer(journal);
+ if (!descriptor)
+ return;
+ header = (journal_header_t *) &jh2bh(descriptor)->b_data[0];
+ header->h_magic = htonl(JFS_MAGIC_NUMBER);
+ header->h_blocktype = htonl(JFS_REVOKE_BLOCK);
+ header->h_sequence = htonl(transaction->t_tid);
+
+ /* Record it so that we can wait for IO completion later */
+ JBUFFER_TRACE(descriptor, "file as BJ_LogCtl");
+ journal_file_buffer(descriptor, transaction, BJ_LogCtl);
+
+ offset = sizeof(journal_revoke_header_t);
+ *descriptorp = descriptor;
+ }
+
+ * ((unsigned int *)(&jh2bh(descriptor)->b_data[offset])) =
+ htonl(record->blocknr);
+ offset += 4;
+ *offsetp = offset;
+}
+
+/*
+ * Flush a revoke descriptor out to the journal. If we are aborting,
+ * this is a noop; otherwise we are generating a buffer which needs to
+ * be waited for during commit, so it has to go onto the appropriate
+ * journal buffer list.
+ */
+
+static void flush_descriptor(journal_t *journal,
+ struct journal_head *descriptor,
+ int offset)
+{
+ journal_revoke_header_t *header;
+
+ if (is_journal_aborted(journal)) {
+ JBUFFER_TRACE(descriptor, "brelse");
+ __brelse(jh2bh(descriptor));
+ return;
+ }
+
+ header = (journal_revoke_header_t *) jh2bh(descriptor)->b_data;
+ header->r_count = htonl(offset);
+ set_bit(BH_JWrite, &jh2bh(descriptor)->b_state);
+ {
+ struct buffer_head *bh = jh2bh(descriptor);
+ BUFFER_TRACE(bh, "write");
+ ll_rw_block (WRITE, 1, &bh);
+ }
+}
+
+#endif
+
+/*
+ * Revoke support for recovery.
+ *
+ * Recovery needs to be able to:
+ *
+ * record all revoke records, including the tid of the latest instance
+ * of each revoke in the journal
+ *
+ * check whether a given block in a given transaction should be replayed
+ * (ie. has not been revoked by a revoke record in that or a subsequent
+ * transaction)
+ *
+ * empty the revoke table after recovery.
+ */
+
+/*
+ * First, setting revoke records. We create a new revoke record for
+ * every block ever revoked in the log as we scan it for recovery, and
+ * we update the existing records if we find multiple revokes for a
+ * single block.
+ */
+
+int journal_set_revoke(journal_t *journal,
+ unsigned long blocknr,
+ tid_t sequence)
+{
+ struct jbd_revoke_record_s *record;
+
+ record = find_revoke_record(journal, blocknr);
+ if (record) {
+ /* If we have multiple occurences, only record the
+ * latest sequence number in the hashed record */
+ if (tid_gt(sequence, record->sequence))
+ record->sequence = sequence;
+ return 0;
+ }
+ return insert_revoke_hash(journal, blocknr, sequence);
+}
+
+/*
+ * Test revoke records. For a given block referenced in the log, has
+ * that block been revoked? A revoke record with a given transaction
+ * sequence number revokes all blocks in that transaction and earlier
+ * ones, but later transactions still need replayed.
+ */
+
+int journal_test_revoke(journal_t *journal,
+ unsigned long blocknr,
+ tid_t sequence)
+{
+ struct jbd_revoke_record_s *record;
+
+ record = find_revoke_record(journal, blocknr);
+ if (!record)
+ return 0;
+ if (tid_gt(sequence, record->sequence))
+ return 0;
+ return 1;
+}
+
+/*
+ * Finally, once recovery is over, we need to clear the revoke table so
+ * that it can be reused by the running filesystem.
+ */
+
+void journal_clear_revoke(journal_t *journal)
+{
+ int i;
+ struct list_head *hash_list;
+ struct jbd_revoke_record_s *record;
+ struct jbd_revoke_table_s *revoke_var;
+
+ revoke_var = journal->j_revoke;
+
+ for (i = 0; i < revoke_var->hash_size; i++) {
+ hash_list = &revoke_var->hash_table[i];
+ while (!list_empty(hash_list)) {
+ record = (struct jbd_revoke_record_s*) hash_list->next;
+ list_del(&record->hash);
+ kmem_cache_free(revoke_record_cache, record);
+ }
+ }
+}
+
+/*
+ * e2fsck.c - superblock checks
+ *
+ * Copyright (C) 1993, 1994, 1995, 1996, 1997 Theodore Ts'o.
+ *
+ * %Begin-Header%
+ * This file may be redistributed under the terms of the GNU Public
+ * License.
+ * %End-Header%
+ */
+
+#define MIN_CHECK 1
+#define MAX_CHECK 2
+
+static void check_super_value(e2fsck_t ctx, const char *descr,
+ unsigned long value, int flags,
+ unsigned long min_val, unsigned long max_val)
+{
+ struct problem_context pctx;
+
+ if (((flags & MIN_CHECK) && (value < min_val)) ||
+ ((flags & MAX_CHECK) && (value > max_val))) {
+ clear_problem_context(&pctx);
+ pctx.num = value;
+ pctx.str = descr;
+ fix_problem(ctx, PR_0_MISC_CORRUPT_SUPER, &pctx);
+ ctx->flags |= E2F_FLAG_ABORT; /* never get here! */
+ }
+}
+
+/*
+ * This routine may get stubbed out in special compilations of the
+ * e2fsck code..
+ */
+#ifndef EXT2_SPECIAL_DEVICE_SIZE
+errcode_t e2fsck_get_device_size(e2fsck_t ctx)
+{
+ return (ext2fs_get_device_size(ctx->filesystem_name,
+ EXT2_BLOCK_SIZE(ctx->fs->super),
+ &ctx->num_blocks));
+}
+#endif
+
+/*
+ * helper function to release an inode
+ */
+struct process_block_struct {
+ e2fsck_t ctx;
+ char *buf;
+ struct problem_context *pctx;
+ int truncating;
+ int truncate_offset;
+ e2_blkcnt_t truncate_block;
+ int truncated_blocks;
+ int abort;
+ errcode_t errcode;
+};
+
+static int release_inode_block(ext2_filsys fs,
+ blk_t *block_nr,
+ e2_blkcnt_t blockcnt,
+ blk_t ref_blk EXT2FS_ATTR((unused)),
+ int ref_offset EXT2FS_ATTR((unused)),
+ void *priv_data)
+{
+ struct process_block_struct *pb;
+ e2fsck_t ctx;
+ struct problem_context *pctx;
+ blk_t blk = *block_nr;
+ int retval = 0;
+
+ pb = (struct process_block_struct *) priv_data;
+ ctx = pb->ctx;
+ pctx = pb->pctx;
+
+ pctx->blk = blk;
+ pctx->blkcount = blockcnt;
+
+ if (HOLE_BLKADDR(blk))
+ return 0;
+
+ if ((blk < fs->super->s_first_data_block) ||
+ (blk >= fs->super->s_blocks_count)) {
+ fix_problem(ctx, PR_0_ORPHAN_ILLEGAL_BLOCK_NUM, pctx);
+ return_abort:
+ pb->abort = 1;
+ return BLOCK_ABORT;
+ }
+
+ if (!ext2fs_test_block_bitmap(fs->block_map, blk)) {
+ fix_problem(ctx, PR_0_ORPHAN_ALREADY_CLEARED_BLOCK, pctx);
+ goto return_abort;
+ }
+
+ /*
+ * If we are deleting an orphan, then we leave the fields alone.
+ * If we are truncating an orphan, then update the inode fields
+ * and clean up any partial block data.
+ */
+ if (pb->truncating) {
+ /*
+ * We only remove indirect blocks if they are
+ * completely empty.
+ */
+ if (blockcnt < 0) {
+ int i, limit;
+ blk_t *bp;
+
+ pb->errcode = io_channel_read_blk(fs->io, blk, 1,
+ pb->buf);
+ if (pb->errcode)
+ goto return_abort;
+
+ limit = fs->blocksize >> 2;
+ for (i = 0, bp = (blk_t *) pb->buf;
+ i < limit; i++, bp++)
+ if (*bp)
+ return 0;
+ }
+ /*
+ * We don't remove direct blocks until we've reached
+ * the truncation block.
+ */
+ if (blockcnt >= 0 && blockcnt < pb->truncate_block)
+ return 0;
+ /*
+ * If part of the last block needs truncating, we do
+ * it here.
+ */
+ if ((blockcnt == pb->truncate_block) && pb->truncate_offset) {
+ pb->errcode = io_channel_read_blk(fs->io, blk, 1,
+ pb->buf);
+ if (pb->errcode)
+ goto return_abort;
+ memset(pb->buf + pb->truncate_offset, 0,
+ fs->blocksize - pb->truncate_offset);
+ pb->errcode = io_channel_write_blk(fs->io, blk, 1,
+ pb->buf);
+ if (pb->errcode)
+ goto return_abort;
+ }
+ pb->truncated_blocks++;
+ *block_nr = 0;
+ retval |= BLOCK_CHANGED;
+ }
+
+ ext2fs_block_alloc_stats(fs, blk, -1);
+ return retval;
+}
+
+/*
+ * This function releases an inode. Returns 1 if an inconsistency was
+ * found. If the inode has a link count, then it is being truncated and
+ * not deleted.
+ */
+static int release_inode_blocks(e2fsck_t ctx, ext2_ino_t ino,
+ struct ext2_inode *inode, char *block_buf,
+ struct problem_context *pctx)
+{
+ struct process_block_struct pb;
+ ext2_filsys fs = ctx->fs;
+ errcode_t retval;
+ __u32 count;
+
+ if (!ext2fs_inode_has_valid_blocks(inode))
+ return 0;
+
+ pb.buf = block_buf + 3 * ctx->fs->blocksize;
+ pb.ctx = ctx;
+ pb.abort = 0;
+ pb.errcode = 0;
+ pb.pctx = pctx;
+ if (inode->i_links_count) {
+ pb.truncating = 1;
+ pb.truncate_block = (e2_blkcnt_t)
+ ((((long long)inode->i_size_high << 32) +
+ inode->i_size + fs->blocksize - 1) /
+ fs->blocksize);
+ pb.truncate_offset = inode->i_size % fs->blocksize;
+ } else {
+ pb.truncating = 0;
+ pb.truncate_block = 0;
+ pb.truncate_offset = 0;
+ }
+ pb.truncated_blocks = 0;
+ retval = ext2fs_block_iterate2(fs, ino, BLOCK_FLAG_DEPTH_TRAVERSE,
+ block_buf, release_inode_block, &pb);
+ if (retval) {
+ com_err("release_inode_blocks", retval,
+ _("while calling ext2fs_block_iterate for inode %d"),
+ ino);
+ return 1;
+ }
+ if (pb.abort)
+ return 1;
+
+ /* Refresh the inode since ext2fs_block_iterate may have changed it */
+ e2fsck_read_inode(ctx, ino, inode, "release_inode_blocks");
+
+ if (pb.truncated_blocks)
+ inode->i_blocks -= pb.truncated_blocks *
+ (fs->blocksize / 512);
+
+ if (inode->i_file_acl) {
+ retval = ext2fs_adjust_ea_refcount(fs, inode->i_file_acl,
+ block_buf, -1, &count);
+ if (retval == EXT2_ET_BAD_EA_BLOCK_NUM) {
+ retval = 0;
+ count = 1;
+ }
+ if (retval) {
+ com_err("release_inode_blocks", retval,
+ _("while calling ext2fs_adjust_ea_refocunt for inode %d"),
+ ino);
+ return 1;
+ }
+ if (count == 0)
+ ext2fs_block_alloc_stats(fs, inode->i_file_acl, -1);
+ inode->i_file_acl = 0;
+ }
+ return 0;
+}
+
+/*
+ * This function releases all of the orphan inodes. It returns 1 if
+ * it hit some error, and 0 on success.
+ */
+static int release_orphan_inodes(e2fsck_t ctx)
+{
+ ext2_filsys fs = ctx->fs;
+ ext2_ino_t ino, next_ino;
+ struct ext2_inode inode;
+ struct problem_context pctx;
+ char *block_buf;
+
+ if ((ino = fs->super->s_last_orphan) == 0)
+ return 0;
+
+ /*
+ * Win or lose, we won't be using the head of the orphan inode
+ * list again.
+ */
+ fs->super->s_last_orphan = 0;
+ ext2fs_mark_super_dirty(fs);
+
+ /*
+ * If the filesystem contains errors, don't run the orphan
+ * list, since the orphan list can't be trusted; and we're
+ * going to be running a full e2fsck run anyway...
+ */
+ if (fs->super->s_state & EXT2_ERROR_FS)
+ return 0;
+
+ if ((ino < EXT2_FIRST_INODE(fs->super)) ||
+ (ino > fs->super->s_inodes_count)) {
+ clear_problem_context(&pctx);
+ pctx.ino = ino;
+ fix_problem(ctx, PR_0_ORPHAN_ILLEGAL_HEAD_INODE, &pctx);
+ return 1;
+ }
+
+ block_buf = (char *) e2fsck_allocate_memory(ctx, fs->blocksize * 4,
+ "block iterate buffer");
+ e2fsck_read_bitmaps(ctx);
+
+ while (ino) {
+ e2fsck_read_inode(ctx, ino, &inode, "release_orphan_inodes");
+ clear_problem_context(&pctx);
+ pctx.ino = ino;
+ pctx.inode = &inode;
+ pctx.str = inode.i_links_count ? _("Truncating") :
+ _("Clearing");
+
+ fix_problem(ctx, PR_0_ORPHAN_CLEAR_INODE, &pctx);
+
+ next_ino = inode.i_dtime;
+ if (next_ino &&
+ ((next_ino < EXT2_FIRST_INODE(fs->super)) ||
+ (next_ino > fs->super->s_inodes_count))) {
+ pctx.ino = next_ino;
+ fix_problem(ctx, PR_0_ORPHAN_ILLEGAL_INODE, &pctx);
+ goto return_abort;
+ }
+
+ if (release_inode_blocks(ctx, ino, &inode, block_buf, &pctx))
+ goto return_abort;
+
+ if (!inode.i_links_count) {
+ ext2fs_inode_alloc_stats2(fs, ino, -1,
+ LINUX_S_ISDIR(inode.i_mode));
+ inode.i_dtime = time(0);
+ } else {
+ inode.i_dtime = 0;
+ }
+ e2fsck_write_inode(ctx, ino, &inode, "delete_file");
+ ino = next_ino;
+ }
+ ext2fs_free_mem(&block_buf);
+ return 0;
+return_abort:
+ ext2fs_free_mem(&block_buf);
+ return 1;
+}
+
+/*
+ * Check the resize inode to make sure it is sane. We check both for
+ * the case where on-line resizing is not enabled (in which case the
+ * resize inode should be cleared) as well as the case where on-line
+ * resizing is enabled.
+ */
+static void check_resize_inode(e2fsck_t ctx)
+{
+ ext2_filsys fs = ctx->fs;
+ struct ext2_inode inode;
+ struct problem_context pctx;
+ int i, j, gdt_off, ind_off;
+ blk_t blk, pblk, expect;
+ __u32 *dind_buf = 0, *ind_buf;
+ errcode_t retval;
+
+ clear_problem_context(&pctx);
+
+ /*
+ * If the resize inode feature isn't set, then
+ * s_reserved_gdt_blocks must be zero.
+ */
+ if (!(fs->super->s_feature_compat &
+ EXT2_FEATURE_COMPAT_RESIZE_INODE)) {
+ if (fs->super->s_reserved_gdt_blocks) {
+ pctx.num = fs->super->s_reserved_gdt_blocks;
+ if (fix_problem(ctx, PR_0_NONZERO_RESERVED_GDT_BLOCKS,
+ &pctx)) {
+ fs->super->s_reserved_gdt_blocks = 0;
+ ext2fs_mark_super_dirty(fs);
+ }
+ }
+ }
+
+ /* Read the resizde inode */
+ pctx.ino = EXT2_RESIZE_INO;
+ retval = ext2fs_read_inode(fs, EXT2_RESIZE_INO, &inode);
+ if (retval) {
+ if (fs->super->s_feature_compat &
+ EXT2_FEATURE_COMPAT_RESIZE_INODE)
+ ctx->flags |= E2F_FLAG_RESIZE_INODE;
+ return;
+ }
+
+ /*
+ * If the resize inode feature isn't set, check to make sure
+ * the resize inode is cleared; then we're done.
+ */
+ if (!(fs->super->s_feature_compat &
+ EXT2_FEATURE_COMPAT_RESIZE_INODE)) {
+ for (i=0; i < EXT2_N_BLOCKS; i++) {
+ if (inode.i_block[i])
+ break;
+ }
+ if ((i < EXT2_N_BLOCKS) &&
+ fix_problem(ctx, PR_0_CLEAR_RESIZE_INODE, &pctx)) {
+ memset(&inode, 0, sizeof(inode));
+ e2fsck_write_inode(ctx, EXT2_RESIZE_INO, &inode,
+ "clear_resize");
+ }
+ return;
+ }
+
+ /*
+ * The resize inode feature is enabled; check to make sure the
+ * only block in use is the double indirect block
+ */
+ blk = inode.i_block[EXT2_DIND_BLOCK];
+ for (i=0; i < EXT2_N_BLOCKS; i++) {
+ if (i != EXT2_DIND_BLOCK && inode.i_block[i])
+ break;
+ }
+ if ((i < EXT2_N_BLOCKS) || !blk || !inode.i_links_count ||
+ !(inode.i_mode & LINUX_S_IFREG) ||
+ (blk < fs->super->s_first_data_block ||
+ blk >= fs->super->s_blocks_count)) {
+ resize_inode_invalid:
+ if (fix_problem(ctx, PR_0_RESIZE_INODE_INVALID, &pctx)) {
+ memset(&inode, 0, sizeof(inode));
+ e2fsck_write_inode(ctx, EXT2_RESIZE_INO, &inode,
+ "clear_resize");
+ ctx->flags |= E2F_FLAG_RESIZE_INODE;
+ }
+ if (!(ctx->options & E2F_OPT_READONLY)) {
+ fs->super->s_state &= ~EXT2_VALID_FS;
+ ext2fs_mark_super_dirty(fs);
+ }
+ goto cleanup;
+ }
+ dind_buf = (__u32 *) e2fsck_allocate_memory(ctx, fs->blocksize * 2,
+ "resize dind buffer");
+ ind_buf = (__u32 *) ((char *) dind_buf + fs->blocksize);
+
+ retval = ext2fs_read_ind_block(fs, blk, dind_buf);
+ if (retval)
+ goto resize_inode_invalid;
+
+ gdt_off = fs->desc_blocks;
+ pblk = fs->super->s_first_data_block + 1 + fs->desc_blocks;
+ for (i = 0; i < fs->super->s_reserved_gdt_blocks / 4;
+ i++, gdt_off++, pblk++) {
+ gdt_off %= fs->blocksize/4;
+ if (dind_buf[gdt_off] != pblk)
+ goto resize_inode_invalid;
+ retval = ext2fs_read_ind_block(fs, pblk, ind_buf);
+ if (retval)
+ goto resize_inode_invalid;
+ ind_off = 0;
+ for (j = 1; j < fs->group_desc_count; j++) {
+ if (!ext2fs_bg_has_super(fs, j))
+ continue;
+ expect = pblk + (j * fs->super->s_blocks_per_group);
+ if (ind_buf[ind_off] != expect)
+ goto resize_inode_invalid;
+ ind_off++;
+ }
+ }
+
+cleanup:
+ if (dind_buf)
+ ext2fs_free_mem(&dind_buf);
+
+ }
+
+void check_super_block(e2fsck_t ctx)
+{
+ ext2_filsys fs = ctx->fs;
+ blk_t first_block, last_block;
+ struct ext2_super_block *sb = fs->super;
+ struct ext2_group_desc *gd;
+ blk_t blocks_per_group = fs->super->s_blocks_per_group;
+ blk_t bpg_max;
+ int inodes_per_block;
+ int ipg_max;
+ int inode_size;
+ dgrp_t i;
+ blk_t should_be;
+ struct problem_context pctx;
+ __u32 free_blocks = 0, free_inodes = 0;
+
+ inodes_per_block = EXT2_INODES_PER_BLOCK(fs->super);
+ ipg_max = inodes_per_block * (blocks_per_group - 4);
+ if (ipg_max > EXT2_MAX_INODES_PER_GROUP(sb))
+ ipg_max = EXT2_MAX_INODES_PER_GROUP(sb);
+ bpg_max = 8 * EXT2_BLOCK_SIZE(sb);
+ if (bpg_max > EXT2_MAX_BLOCKS_PER_GROUP(sb))
+ bpg_max = EXT2_MAX_BLOCKS_PER_GROUP(sb);
+
+ ctx->invalid_inode_bitmap_flag = (int *) e2fsck_allocate_memory(ctx,
+ sizeof(int) * fs->group_desc_count, "invalid_inode_bitmap");
+ ctx->invalid_block_bitmap_flag = (int *) e2fsck_allocate_memory(ctx,
+ sizeof(int) * fs->group_desc_count, "invalid_block_bitmap");
+ ctx->invalid_inode_table_flag = (int *) e2fsck_allocate_memory(ctx,
+ sizeof(int) * fs->group_desc_count, "invalid_inode_table");
+
+ clear_problem_context(&pctx);
+
+ /*
+ * Verify the super block constants...
+ */
+ check_super_value(ctx, "inodes_count", sb->s_inodes_count,
+ MIN_CHECK, 1, 0);
+ check_super_value(ctx, "blocks_count", sb->s_blocks_count,
+ MIN_CHECK, 1, 0);
+ check_super_value(ctx, "first_data_block", sb->s_first_data_block,
+ MAX_CHECK, 0, sb->s_blocks_count);
+ check_super_value(ctx, "log_block_size", sb->s_log_block_size,
+ MIN_CHECK | MAX_CHECK, 0,
+ EXT2_MAX_BLOCK_LOG_SIZE - EXT2_MIN_BLOCK_LOG_SIZE);
+ check_super_value(ctx, "log_frag_size", sb->s_log_frag_size,
+ MIN_CHECK | MAX_CHECK, 0, sb->s_log_block_size);
+ check_super_value(ctx, "frags_per_group", sb->s_frags_per_group,
+ MIN_CHECK | MAX_CHECK, sb->s_blocks_per_group,
+ bpg_max);
+ check_super_value(ctx, "blocks_per_group", sb->s_blocks_per_group,
+ MIN_CHECK | MAX_CHECK, 8, bpg_max);
+ check_super_value(ctx, "inodes_per_group", sb->s_inodes_per_group,
+ MIN_CHECK | MAX_CHECK, inodes_per_block, ipg_max);
+ check_super_value(ctx, "r_blocks_count", sb->s_r_blocks_count,
+ MAX_CHECK, 0, sb->s_blocks_count / 2);
+ check_super_value(ctx, "reserved_gdt_blocks",
+ sb->s_reserved_gdt_blocks, MAX_CHECK, 0,
+ fs->blocksize/4);
+ inode_size = EXT2_INODE_SIZE(sb);
+ check_super_value(ctx, "inode_size",
+ inode_size, MIN_CHECK | MAX_CHECK,
+ EXT2_GOOD_OLD_INODE_SIZE, fs->blocksize);
+ if (inode_size & (inode_size - 1)) {
+ pctx.num = inode_size;
+ pctx.str = "inode_size";
+ fix_problem(ctx, PR_0_MISC_CORRUPT_SUPER, &pctx);
+ ctx->flags |= E2F_FLAG_ABORT; /* never get here! */
+ return;
+ }
+
+ if (!ctx->num_blocks) {
+ pctx.errcode = e2fsck_get_device_size(ctx);
+ if (pctx.errcode && pctx.errcode != EXT2_ET_UNIMPLEMENTED) {
+ fix_problem(ctx, PR_0_GETSIZE_ERROR, &pctx);
+ ctx->flags |= E2F_FLAG_ABORT;
+ return;
+ }
+ if ((pctx.errcode != EXT2_ET_UNIMPLEMENTED) &&
+ (ctx->num_blocks < sb->s_blocks_count)) {
+ pctx.blk = sb->s_blocks_count;
+ pctx.blk2 = ctx->num_blocks;
+ if (fix_problem(ctx, PR_0_FS_SIZE_WRONG, &pctx)) {
+ ctx->flags |= E2F_FLAG_ABORT;
+ return;
+ }
+ }
+ }
+
+ if (sb->s_log_block_size != (__u32) sb->s_log_frag_size) {
+ pctx.blk = EXT2_BLOCK_SIZE(sb);
+ pctx.blk2 = EXT2_FRAG_SIZE(sb);
+ fix_problem(ctx, PR_0_NO_FRAGMENTS, &pctx);
+ ctx->flags |= E2F_FLAG_ABORT;
+ return;
+ }
+
+ should_be = sb->s_frags_per_group >>
+ (sb->s_log_block_size - sb->s_log_frag_size);
+ if (sb->s_blocks_per_group != should_be) {
+ pctx.blk = sb->s_blocks_per_group;
+ pctx.blk2 = should_be;
+ fix_problem(ctx, PR_0_BLOCKS_PER_GROUP, &pctx);
+ ctx->flags |= E2F_FLAG_ABORT;
+ return;
+ }
+
+ should_be = (sb->s_log_block_size == 0) ? 1 : 0;
+ if (sb->s_first_data_block != should_be) {
+ pctx.blk = sb->s_first_data_block;
+ pctx.blk2 = should_be;
+ fix_problem(ctx, PR_0_FIRST_DATA_BLOCK, &pctx);
+ ctx->flags |= E2F_FLAG_ABORT;
+ return;
+ }
+
+ should_be = sb->s_inodes_per_group * fs->group_desc_count;
+ if (sb->s_inodes_count != should_be) {
+ pctx.ino = sb->s_inodes_count;
+ pctx.ino2 = should_be;
+ if (fix_problem(ctx, PR_0_INODE_COUNT_WRONG, &pctx)) {
+ sb->s_inodes_count = should_be;
+ ext2fs_mark_super_dirty(fs);
+ }
+ }
+
+ /*
+ * Verify the group descriptors....
+ */
+ first_block = sb->s_first_data_block;
+ last_block = first_block + blocks_per_group;
+
+ for (i = 0, gd=fs->group_desc; i < fs->group_desc_count; i++, gd++) {
+ pctx.group = i;
+
+ if (i == fs->group_desc_count - 1)
+ last_block = sb->s_blocks_count;
+ if ((gd->bg_block_bitmap < first_block) ||
+ (gd->bg_block_bitmap >= last_block)) {
+ pctx.blk = gd->bg_block_bitmap;
+ if (fix_problem(ctx, PR_0_BB_NOT_GROUP, &pctx))
+ gd->bg_block_bitmap = 0;
+ }
+ if (gd->bg_block_bitmap == 0) {
+ ctx->invalid_block_bitmap_flag[i]++;
+ ctx->invalid_bitmaps++;
+ }
+ if ((gd->bg_inode_bitmap < first_block) ||
+ (gd->bg_inode_bitmap >= last_block)) {
+ pctx.blk = gd->bg_inode_bitmap;
+ if (fix_problem(ctx, PR_0_IB_NOT_GROUP, &pctx))
+ gd->bg_inode_bitmap = 0;
+ }
+ if (gd->bg_inode_bitmap == 0) {
+ ctx->invalid_inode_bitmap_flag[i]++;
+ ctx->invalid_bitmaps++;
+ }
+ if ((gd->bg_inode_table < first_block) ||
+ ((gd->bg_inode_table +
+ fs->inode_blocks_per_group - 1) >= last_block)) {
+ pctx.blk = gd->bg_inode_table;
+ if (fix_problem(ctx, PR_0_ITABLE_NOT_GROUP, &pctx))
+ gd->bg_inode_table = 0;
+ }
+ if (gd->bg_inode_table == 0) {
+ ctx->invalid_inode_table_flag[i]++;
+ ctx->invalid_bitmaps++;
+ }
+ free_blocks += gd->bg_free_blocks_count;
+ free_inodes += gd->bg_free_inodes_count;
+ first_block += sb->s_blocks_per_group;
+ last_block += sb->s_blocks_per_group;
+
+ if ((gd->bg_free_blocks_count > sb->s_blocks_per_group) ||
+ (gd->bg_free_inodes_count > sb->s_inodes_per_group) ||
+ (gd->bg_used_dirs_count > sb->s_inodes_per_group))
+ ext2fs_unmark_valid(fs);
+
+ }
+
+ /*
+ * Update the global counts from the block group counts. This
+ * is needed for an experimental patch which eliminates
+ * locking the entire filesystem when allocating blocks or
+ * inodes; if the filesystem is not unmounted cleanly, the
+ * global counts may not be accurate.
+ */
+ if ((free_blocks != sb->s_free_blocks_count) ||
+ (free_inodes != sb->s_free_inodes_count)) {
+ if (ctx->options & E2F_OPT_READONLY)
+ ext2fs_unmark_valid(fs);
+ else {
+ sb->s_free_blocks_count = free_blocks;
+ sb->s_free_inodes_count = free_inodes;
+ ext2fs_mark_super_dirty(fs);
+ }
+ }
+
+ if ((sb->s_free_blocks_count > sb->s_blocks_count) ||
+ (sb->s_free_inodes_count > sb->s_inodes_count))
+ ext2fs_unmark_valid(fs);
+
+
+ /*
+ * If we have invalid bitmaps, set the error state of the
+ * filesystem.
+ */
+ if (ctx->invalid_bitmaps && !(ctx->options & E2F_OPT_READONLY)) {
+ sb->s_state &= ~EXT2_VALID_FS;
+ ext2fs_mark_super_dirty(fs);
+ }
+
+ clear_problem_context(&pctx);
+
+#ifndef EXT2_SKIP_UUID
+ /*
+ * If the UUID field isn't assigned, assign it.
+ */
+ if (!(ctx->options & E2F_OPT_READONLY) && uuid_is_null(sb->s_uuid)) {
+ if (fix_problem(ctx, PR_0_ADD_UUID, &pctx)) {
+ uuid_generate(sb->s_uuid);
+ ext2fs_mark_super_dirty(fs);
+ fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
+ }
+ }
+#endif
+
+ /*
+ * For the Hurd, check to see if the filetype option is set,
+ * since it doesn't support it.
+ */
+ if (!(ctx->options & E2F_OPT_READONLY) &&
+ fs->super->s_creator_os == EXT2_OS_HURD &&
+ (fs->super->s_feature_incompat &
+ EXT2_FEATURE_INCOMPAT_FILETYPE)) {
+ if (fix_problem(ctx, PR_0_HURD_CLEAR_FILETYPE, &pctx)) {
+ fs->super->s_feature_incompat &=
+ ~EXT2_FEATURE_INCOMPAT_FILETYPE;
+ ext2fs_mark_super_dirty(fs);
+
+ }
+ }
+
+ /*
+ * If we have any of the compatibility flags set, we need to have a
+ * revision 1 filesystem. Most kernels will not check the flags on
+ * a rev 0 filesystem and we may have corruption issues because of
+ * the incompatible changes to the filesystem.
+ */
+ if (!(ctx->options & E2F_OPT_READONLY) &&
+ fs->super->s_rev_level == EXT2_GOOD_OLD_REV &&
+ (fs->super->s_feature_compat ||
+ fs->super->s_feature_ro_compat ||
+ fs->super->s_feature_incompat) &&
+ fix_problem(ctx, PR_0_FS_REV_LEVEL, &pctx)) {
+ ext2fs_update_dynamic_rev(fs);
+ ext2fs_mark_super_dirty(fs);
+ }
+
+ check_resize_inode(ctx);
+
+ /*
+ * Clean up any orphan inodes, if present.
+ */
+ if (!(ctx->options & E2F_OPT_READONLY) && release_orphan_inodes(ctx)) {
+ fs->super->s_state &= ~EXT2_VALID_FS;
+ ext2fs_mark_super_dirty(fs);
+ }
+
+ /*
+ * Move the ext3 journal file, if necessary.
+ */
+ e2fsck_move_ext3_journal(ctx);
+ return;
+}
+/*
+ * swapfs.c --- byte-swap an ext2 filesystem
+ *
+ * Copyright 1996, 1997 by Theodore Ts'o
+ *
+ * %Begin-Header%
+ * This file may be redistributed under the terms of the GNU Public
+ * License.
+ * %End-Header%
+ *
+ */
+
+#ifdef ENABLE_SWAPFS
+
+struct swap_block_struct {
+ ext2_ino_t ino;
+ int isdir;
+ errcode_t errcode;
+ char *dir_buf;
+ struct ext2_inode *inode;
+};
+
+/*
+ * This is a helper function for block_iterate. We mark all of the
+ * indirect and direct blocks as changed, so that block_iterate will
+ * write them out.
+ */
+static int swap_block(ext2_filsys fs, blk_t *block_nr, int blockcnt,
+ void *priv_data)
+{
+ errcode_t retval;
+
+ struct swap_block_struct *sb = (struct swap_block_struct *) priv_data;
+
+ if (sb->isdir && (blockcnt >= 0) && *block_nr) {
+ retval = ext2fs_read_dir_block(fs, *block_nr, sb->dir_buf);
+ if (retval) {
+ sb->errcode = retval;
+ return BLOCK_ABORT;
+ }
+ retval = ext2fs_write_dir_block(fs, *block_nr, sb->dir_buf);
+ if (retval) {
+ sb->errcode = retval;
+ return BLOCK_ABORT;
+ }
+ }
+ if (blockcnt >= 0) {
+ if (blockcnt < EXT2_NDIR_BLOCKS)
+ return 0;
+ return BLOCK_CHANGED;
+ }
+ if (blockcnt == BLOCK_COUNT_IND) {
+ if (*block_nr == sb->inode->i_block[EXT2_IND_BLOCK])
+ return 0;
+ return BLOCK_CHANGED;
+ }
+ if (blockcnt == BLOCK_COUNT_DIND) {
+ if (*block_nr == sb->inode->i_block[EXT2_DIND_BLOCK])
+ return 0;
+ return BLOCK_CHANGED;
+ }
+ if (blockcnt == BLOCK_COUNT_TIND) {
+ if (*block_nr == sb->inode->i_block[EXT2_TIND_BLOCK])
+ return 0;
+ return BLOCK_CHANGED;
+ }
+ return BLOCK_CHANGED;
+}
+
+/*
+ * This function is responsible for byte-swapping all of the indirect,
+ * block pointers. It is also responsible for byte-swapping directories.
+ */
+static void swap_inode_blocks(e2fsck_t ctx, ext2_ino_t ino, char *block_buf,
+ struct ext2_inode *inode)
+{
+ errcode_t retval;
+ struct swap_block_struct sb;
+
+ sb.ino = ino;
+ sb.inode = inode;
+ sb.dir_buf = block_buf + ctx->fs->blocksize*3;
+ sb.errcode = 0;
+ sb.isdir = 0;
+ if (LINUX_S_ISDIR(inode->i_mode))
+ sb.isdir = 1;
+
+ retval = ext2fs_block_iterate(ctx->fs, ino, 0, block_buf,
+ swap_block, &sb);
+ if (retval) {
+ com_err("swap_inode_blocks", retval,
+ _("while calling ext2fs_block_iterate"));
+ ctx->flags |= E2F_FLAG_ABORT;
+ return;
+ }
+ if (sb.errcode) {
+ com_err("swap_inode_blocks", sb.errcode,
+ _("while calling iterator function"));
+ ctx->flags |= E2F_FLAG_ABORT;
+ return;
+ }
+}
+
+static void swap_inodes(e2fsck_t ctx)
+{
+ ext2_filsys fs = ctx->fs;
+ dgrp_t group;
+ unsigned int i;
+ ext2_ino_t ino = 1;
+ char *buf, *block_buf;
+ errcode_t retval;
+ struct ext2_inode * inode;
+
+ e2fsck_use_inode_shortcuts(ctx, 1);
+
+ retval = ext2fs_get_mem(fs->blocksize * fs->inode_blocks_per_group,
+ &buf);
+ if (retval) {
+ com_err("swap_inodes", retval,
+ _("while allocating inode buffer"));
+ ctx->flags |= E2F_FLAG_ABORT;
+ return;
+ }
+ block_buf = (char *) e2fsck_allocate_memory(ctx, fs->blocksize * 4,
+ "block interate buffer");
+ for (group = 0; group < fs->group_desc_count; group++) {
+ retval = io_channel_read_blk(fs->io,
+ fs->group_desc[group].bg_inode_table,
+ fs->inode_blocks_per_group, buf);
+ if (retval) {
+ com_err("swap_inodes", retval,
+ _("while reading inode table (group %d)"),
+ group);
+ ctx->flags |= E2F_FLAG_ABORT;
+ return;
+ }
+ inode = (struct ext2_inode *) buf;
+ for (i=0; i < fs->super->s_inodes_per_group;
+ i++, ino++, inode++) {
+ ctx->stashed_ino = ino;
+ ctx->stashed_inode = inode;
+
+ if (fs->flags & EXT2_FLAG_SWAP_BYTES_READ)
+ ext2fs_swap_inode(fs, inode, inode, 0);
+
+ /*
+ * Skip deleted files.
+ */
+ if (inode->i_links_count == 0)
+ continue;
+
+ if (LINUX_S_ISDIR(inode->i_mode) ||
+ ((inode->i_block[EXT2_IND_BLOCK] ||
+ inode->i_block[EXT2_DIND_BLOCK] ||
+ inode->i_block[EXT2_TIND_BLOCK]) &&
+ ext2fs_inode_has_valid_blocks(inode)))
+ swap_inode_blocks(ctx, ino, block_buf, inode);
+
+ if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
+ return;
+
+ if (fs->flags & EXT2_FLAG_SWAP_BYTES_WRITE)
+ ext2fs_swap_inode(fs, inode, inode, 1);
+ }
+ retval = io_channel_write_blk(fs->io,
+ fs->group_desc[group].bg_inode_table,
+ fs->inode_blocks_per_group, buf);
+ if (retval) {
+ com_err("swap_inodes", retval,
+ _("while writing inode table (group %d)"),
+ group);
+ ctx->flags |= E2F_FLAG_ABORT;
+ return;
+ }
+ }
+ ext2fs_free_mem(&buf);
+ ext2fs_free_mem(&block_buf);
+ e2fsck_use_inode_shortcuts(ctx, 0);
+ ext2fs_flush_icache(fs);
+}
+
+#if defined(__powerpc__) && defined(EXT2FS_ENABLE_SWAPFS)
+/*
+ * On the PowerPC, the big-endian variant of the ext2 filesystem
+ * has its bitmaps stored as 32-bit words with bit 0 as the LSB
+ * of each word. Thus a bitmap with only bit 0 set would be, as
+ * a string of bytes, 00 00 00 01 00 ...
+ * To cope with this, we byte-reverse each word of a bitmap if
+ * we have a big-endian filesystem, that is, if we are *not*
+ * byte-swapping other word-sized numbers.
+ */
+#define EXT2_BIG_ENDIAN_BITMAPS
+#endif
+
+#ifdef EXT2_BIG_ENDIAN_BITMAPS
+static void ext2fs_swap_bitmap(ext2fs_generic_bitmap bmap)
+{
+ __u32 *p = (__u32 *) bmap->bitmap;
+ int n, nbytes = (bmap->end - bmap->start + 7) / 8;
+
+ for (n = nbytes / sizeof(__u32); n > 0; --n, ++p)
+ *p = ext2fs_swab32(*p);
+}
+#endif
+
+
+#ifdef ENABLE_SWAPFS
+void swap_filesys(e2fsck_t ctx)
+{
+ ext2_filsys fs = ctx->fs;
+#ifdef RESOURCE_TRACK
+ struct resource_track rtrack;
+
+ init_resource_track(&rtrack);
+#endif
+
+ if (!(ctx->options & E2F_OPT_PREEN))
+ printf(_("Pass 0: Doing byte-swap of filesystem\n"));
+
+#ifdef MTRACE
+ mtrace_print("Byte swap");
+#endif
+
+ if (fs->super->s_mnt_count) {
+ fprintf(stderr, _("%s: the filesystem must be freshly "
+ "checked using fsck\n"
+ "and not mounted before trying to "
+ "byte-swap it.\n"), ctx->device_name);
+ ctx->flags |= E2F_FLAG_ABORT;
+ return;
+ }
+ if (fs->flags & EXT2_FLAG_SWAP_BYTES) {
+ fs->flags &= ~(EXT2_FLAG_SWAP_BYTES|
+ EXT2_FLAG_SWAP_BYTES_WRITE);
+ fs->flags |= EXT2_FLAG_SWAP_BYTES_READ;
+ } else {
+ fs->flags &= ~EXT2_FLAG_SWAP_BYTES_READ;
+ fs->flags |= EXT2_FLAG_SWAP_BYTES_WRITE;
+ }
+ swap_inodes(ctx);
+ if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
+ return;
+ if (fs->flags & EXT2_FLAG_SWAP_BYTES_WRITE)
+ fs->flags |= EXT2_FLAG_SWAP_BYTES;
+ fs->flags &= ~(EXT2_FLAG_SWAP_BYTES_READ|
+ EXT2_FLAG_SWAP_BYTES_WRITE);
+
+#ifdef EXT2_BIG_ENDIAN_BITMAPS
+ e2fsck_read_bitmaps(ctx);
+ ext2fs_swap_bitmap(fs->inode_map);
+ ext2fs_swap_bitmap(fs->block_map);
+ fs->flags |= EXT2_FLAG_BB_DIRTY | EXT2_FLAG_IB_DIRTY;
+#endif
+ fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
+ ext2fs_flush(fs);
+ fs->flags |= EXT2_FLAG_MASTER_SB_ONLY;
+
+#ifdef RESOURCE_TRACK
+ if (ctx->options & E2F_OPT_TIME2)
+ print_resource_track(_("Byte swap"), &rtrack);
+#endif
+}
+#endif /* ENABLE_SWAPFS */
+
+#endif
+/*
+ * util.c --- miscellaneous utilities
+ *
* Copyright (C) 1993, 1994, 1995, 1996, 1997 Theodore Ts'o.
*
* %Begin-Header%
* %End-Header%
*/
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <fcntl.h>
-#include <ctype.h>
-#include <time.h>
-#ifdef HAVE_SIGNAL_H
-#include <signal.h>
+#ifdef HAVE_CONIO_H
+#undef HAVE_TERMIOS_H
+#include <conio.h>
+#define read_a_char() getch()
+#else
+#ifdef HAVE_TERMIOS_H
+#include <termios.h>
#endif
-#ifdef HAVE_GETOPT_H
-#include <getopt.h>
+#endif
+
+#if 0
+void fatal_error(e2fsck_t ctx, const char *msg)
+{
+ if (msg)
+ fprintf (stderr, "e2fsck: %s\n", msg);
+ if (ctx->fs && ctx->fs->io) {
+ if (ctx->fs->io->magic == EXT2_ET_MAGIC_IO_CHANNEL)
+ io_channel_flush(ctx->fs->io);
+ else
+ fprintf(stderr, "e2fsck: io manager magic bad!\n");
+ }
+ ctx->flags |= E2F_FLAG_ABORT;
+ if (ctx->flags & E2F_FLAG_SETJMP_OK)
+ longjmp(ctx->abort_loc, 1);
+ exit(FSCK_ERROR);
+}
+#endif
+
+void *e2fsck_allocate_memory(e2fsck_t ctx, unsigned int size,
+ const char *description)
+{
+ void *ret;
+ char buf[256];
+
+#ifdef DEBUG_ALLOCATE_MEMORY
+ printf("Allocating %d bytes for %s...\n", size, description);
+#endif
+ ret = malloc(size);
+ if (!ret) {
+ sprintf(buf, "Can't allocate %s\n", description);
+ fatal_error(ctx, buf);
+ }
+ memset(ret, 0, size);
+ return ret;
+}
+
+char *string_copy(e2fsck_t ctx EXT2FS_ATTR((unused)),
+ const char *str, int len)
+{
+ char *ret;
+
+ if (!str)
+ return NULL;
+ if (!len)
+ len = strlen(str);
+ ret = malloc(len+1);
+ if (ret) {
+ strncpy(ret, str, len);
+ ret[len] = 0;
+ }
+ return ret;
+}
+
+#ifndef HAVE_CONIO_H
+static int read_a_char(void)
+{
+ char c;
+ int r;
+ int fail = 0;
+
+ while(1) {
+ if (e2fsck_global_ctx &&
+ (e2fsck_global_ctx->flags & E2F_FLAG_CANCEL)) {
+ return 3;
+ }
+ r = read(0, &c, 1);
+ if (r == 1)
+ return c;
+ if (fail++ > 100)
+ break;
+ }
+ return EOF;
+}
+#endif
+
+int ask_yn(const char * string, int def)
+{
+ int c;
+ const char *defstr;
+ const char *short_yes = _("yY");
+ const char *short_no = _("nN");
+
+#ifdef HAVE_TERMIOS_H
+ struct termios termios, tmp;
+
+ tcgetattr (0, &termios);
+ tmp = termios;
+ tmp.c_lflag &= ~(ICANON | ECHO);
+ tmp.c_cc[VMIN] = 1;
+ tmp.c_cc[VTIME] = 0;
+ tcsetattr (0, TCSANOW, &tmp);
+#endif
+
+ if (def == 1)
+ defstr = _(_("<y>"));
+ else if (def == 0)
+ defstr = _(_("<n>"));
+ else
+ defstr = _(" (y/n)");
+ printf("%s%s? ", string, defstr);
+ while (1) {
+ fflush (stdout);
+ if ((c = read_a_char()) == EOF)
+ break;
+ if (c == 3) {
+#ifdef HAVE_TERMIOS_H
+ tcsetattr (0, TCSANOW, &termios);
+#endif
+ if (e2fsck_global_ctx &&
+ e2fsck_global_ctx->flags & E2F_FLAG_SETJMP_OK) {
+ puts("\n");
+ longjmp(e2fsck_global_ctx->abort_loc, 1);
+ }
+ puts(_("cancelled!\n"));
+ return 0;
+ }
+ if (strchr(short_yes, (char) c)) {
+ def = 1;
+ break;
+ }
+ else if (strchr(short_no, (char) c)) {
+ def = 0;
+ break;
+ }
+ else if ((c == ' ' || c == '\n') && (def != -1))
+ break;
+ }
+ if (def)
+ puts(_("yes\n"));
+ else
+ puts (_("no\n"));
+#ifdef HAVE_TERMIOS_H
+ tcsetattr (0, TCSANOW, &termios);
+#endif
+ return def;
+}
+
+int ask (e2fsck_t ctx, const char * string, int def)
+{
+ if (ctx->options & E2F_OPT_NO) {
+ printf (_("%s? no\n\n"), string);
+ return 0;
+ }
+ if (ctx->options & E2F_OPT_YES) {
+ printf (_("%s? yes\n\n"), string);
+ return 1;
+ }
+ if (ctx->options & E2F_OPT_PREEN) {
+ printf ("%s? %s\n\n", string, def ? _("yes") : _("no"));
+ return def;
+ }
+ return ask_yn(string, def);
+}
+
+void e2fsck_read_bitmaps(e2fsck_t ctx)
+{
+ ext2_filsys fs = ctx->fs;
+ errcode_t retval;
+
+ if (ctx->invalid_bitmaps) {
+ com_err(ctx->program_name, 0,
+ _("e2fsck_read_bitmaps: illegal bitmap block(s) for %s"),
+ ctx->device_name);
+ fatal_error(ctx, 0);
+ }
+
+ ehandler_operation(_("reading inode and block bitmaps"));
+ retval = ext2fs_read_bitmaps(fs);
+ ehandler_operation(0);
+ if (retval) {
+ com_err(ctx->program_name, retval,
+ _("while retrying to read bitmaps for %s"),
+ ctx->device_name);
+ fatal_error(ctx, 0);
+ }
+}
+
+void e2fsck_write_bitmaps(e2fsck_t ctx)
+{
+ ext2_filsys fs = ctx->fs;
+ errcode_t retval;
+
+ if (ext2fs_test_bb_dirty(fs)) {
+ ehandler_operation(_("writing block bitmaps"));
+ retval = ext2fs_write_block_bitmap(fs);
+ ehandler_operation(0);
+ if (retval) {
+ com_err(ctx->program_name, retval,
+ _("while retrying to write block bitmaps for %s"),
+ ctx->device_name);
+ fatal_error(ctx, 0);
+ }
+ }
+
+ if (ext2fs_test_ib_dirty(fs)) {
+ ehandler_operation(_("writing inode bitmaps"));
+ retval = ext2fs_write_inode_bitmap(fs);
+ ehandler_operation(0);
+ if (retval) {
+ com_err(ctx->program_name, retval,
+ _("while retrying to write inode bitmaps for %s"),
+ ctx->device_name);
+ fatal_error(ctx, 0);
+ }
+ }
+}
+
+void preenhalt(e2fsck_t ctx)
+{
+ ext2_filsys fs = ctx->fs;
+
+ if (!(ctx->options & E2F_OPT_PREEN))
+ return;
+ fprintf(stderr, _("\n\n%s: UNEXPECTED INCONSISTENCY; "
+ "RUN fsck MANUALLY.\n\t(i.e., without -a or -p options)\n"),
+ ctx->device_name);
+ if (fs != NULL) {
+ fs->super->s_state |= EXT2_ERROR_FS;
+ ext2fs_mark_super_dirty(fs);
+ ext2fs_close(fs);
+ }
+ exit(FSCK_UNCORRECTED);
+}
+
+#ifdef RESOURCE_TRACK
+void init_resource_track(struct resource_track *track)
+{
+#ifdef HAVE_GETRUSAGE
+ struct rusage r;
+#endif
+
+ track->brk_start = sbrk(0);
+ gettimeofday(&track->time_start, 0);
+#ifdef HAVE_GETRUSAGE
+#ifdef sun
+ memset(&r, 0, sizeof(struct rusage));
+#endif
+ getrusage(RUSAGE_SELF, &r);
+ track->user_start = r.ru_utime;
+ track->system_start = r.ru_stime;
#else
-extern char *optarg;
-extern int optind;
+ track->user_start.tv_sec = track->user_start.tv_usec = 0;
+ track->system_start.tv_sec = track->system_start.tv_usec = 0;
#endif
-#include <unistd.h>
-#ifdef HAVE_ERRNO_H
-#include <errno.h>
+}
+
+static _INLINE_ float timeval_subtract(struct timeval *tv1,
+ struct timeval *tv2)
+{
+ return ((tv1->tv_sec - tv2->tv_sec) +
+ ((float) (tv1->tv_usec - tv2->tv_usec)) / 1000000);
+}
+
+void print_resource_track(const char *desc, struct resource_track *track)
+{
+#ifdef HAVE_GETRUSAGE
+ struct rusage r;
#endif
-#ifdef HAVE_MNTENT_H
-#include <mntent.h>
+#ifdef HAVE_MALLINFO
+ struct mallinfo malloc_info;
#endif
-#ifdef HAVE_SYS_IOCTL_H
-#include <sys/ioctl.h>
+ struct timeval time_end;
+
+ gettimeofday(&time_end, 0);
+
+ if (desc)
+ printf("%s: ", desc);
+
+#ifdef HAVE_MALLINFO
+#define kbytes(x) (((x) + 1023) / 1024)
+
+ malloc_info = mallinfo();
+ printf(_("Memory used: %dk/%dk (%dk/%dk), "),
+ kbytes(malloc_info.arena), kbytes(malloc_info.hblkhd),
+ kbytes(malloc_info.uordblks), kbytes(malloc_info.fordblks));
+#else
+ printf(_("Memory used: %d, "),
+ (int) (((char *) sbrk(0)) - ((char *) track->brk_start)));
#endif
-#ifdef HAVE_MALLOC_H
-#include <malloc.h>
+#ifdef HAVE_GETRUSAGE
+ getrusage(RUSAGE_SELF, &r);
+
+ printf(_("time: %5.2f/%5.2f/%5.2f\n"),
+ timeval_subtract(&time_end, &track->time_start),
+ timeval_subtract(&r.ru_utime, &track->user_start),
+ timeval_subtract(&r.ru_stime, &track->system_start));
+#else
+ printf(_("elapsed time: %6.3f\n"),
+ timeval_subtract(&time_end, &track->time_start));
#endif
-#ifdef HAVE_SYS_TYPES_H
-#include <sys/types.h>
+}
+#endif /* RESOURCE_TRACK */
+
+void e2fsck_read_inode(e2fsck_t ctx, unsigned long ino,
+ struct ext2_inode * inode, const char *proc)
+{
+ int retval;
+
+ retval = ext2fs_read_inode(ctx->fs, ino, inode);
+ if (retval) {
+ com_err("ext2fs_read_inode", retval,
+ _("while reading inode %ld in %s"), ino, proc);
+ fatal_error(ctx, 0);
+ }
+}
+
+extern void e2fsck_write_inode_full(e2fsck_t ctx, unsigned long ino,
+ struct ext2_inode * inode, int bufsize,
+ const char *proc)
+{
+ int retval;
+
+ retval = ext2fs_write_inode_full(ctx->fs, ino, inode, bufsize);
+ if (retval) {
+ com_err("ext2fs_write_inode", retval,
+ _("while writing inode %ld in %s"), ino, proc);
+ fatal_error(ctx, 0);
+ }
+}
+
+extern void e2fsck_write_inode(e2fsck_t ctx, unsigned long ino,
+ struct ext2_inode * inode, const char *proc)
+{
+ int retval;
+
+ retval = ext2fs_write_inode(ctx->fs, ino, inode);
+ if (retval) {
+ com_err("ext2fs_write_inode", retval,
+ _("while writing inode %ld in %s"), ino, proc);
+ fatal_error(ctx, 0);
+ }
+}
+
+#ifdef MTRACE
+void mtrace_print(char *mesg)
+{
+ FILE *malloc_get_mallstream();
+ FILE *f = malloc_get_mallstream();
+
+ if (f)
+ fprintf(f, "============= %s\n", mesg);
+}
#endif
-#ifdef HAVE_DIRENT_H
-#include <dirent.h>
+
+blk_t get_backup_sb(e2fsck_t ctx, ext2_filsys fs, const char *name,
+ io_manager manager)
+{
+ struct ext2_super_block *sb;
+ io_channel io = NULL;
+ void *buf = NULL;
+ int blocksize;
+ blk_t superblock, ret_sb = 8193;
+
+ if (fs && fs->super) {
+ ret_sb = (fs->super->s_blocks_per_group +
+ fs->super->s_first_data_block);
+ if (ctx) {
+ ctx->superblock = ret_sb;
+ ctx->blocksize = fs->blocksize;
+ }
+ return ret_sb;
+ }
+
+ if (ctx) {
+ if (ctx->blocksize) {
+ ret_sb = ctx->blocksize * 8;
+ if (ctx->blocksize == 1024)
+ ret_sb++;
+ ctx->superblock = ret_sb;
+ return ret_sb;
+ }
+ ctx->superblock = ret_sb;
+ ctx->blocksize = 1024;
+ }
+
+ if (!name || !manager)
+ goto cleanup;
+
+ if (manager->open(name, 0, &io) != 0)
+ goto cleanup;
+
+ if (ext2fs_get_mem(SUPERBLOCK_SIZE, &buf))
+ goto cleanup;
+ sb = (struct ext2_super_block *) buf;
+
+ for (blocksize = EXT2_MIN_BLOCK_SIZE;
+ blocksize <= EXT2_MAX_BLOCK_SIZE ; blocksize *= 2) {
+ superblock = blocksize*8;
+ if (blocksize == 1024)
+ superblock++;
+ io_channel_set_blksize(io, blocksize);
+ if (io_channel_read_blk(io, superblock,
+ -SUPERBLOCK_SIZE, buf))
+ continue;
+#ifdef EXT2FS_ENABLE_SWAPFS
+ if (sb->s_magic == ext2fs_swab16(EXT2_SUPER_MAGIC))
+ ext2fs_swap_super(sb);
#endif
+ if (sb->s_magic == EXT2_SUPER_MAGIC) {
+ ret_sb = superblock;
+ if (ctx) {
+ ctx->superblock = superblock;
+ ctx->blocksize = blocksize;
+ }
+ break;
+ }
+ }
+
+cleanup:
+ if (io)
+ io_channel_close(io);
+ if (buf)
+ ext2fs_free_mem(&buf);
+ return (ret_sb);
+}
+
+/*
+ * Given a mode, return the ext2 file type
+ */
+int ext2_file_type(unsigned int mode)
+{
+ if (LINUX_S_ISREG(mode))
+ return EXT2_FT_REG_FILE;
+
+ if (LINUX_S_ISDIR(mode))
+ return EXT2_FT_DIR;
+
+ if (LINUX_S_ISCHR(mode))
+ return EXT2_FT_CHRDEV;
+
+ if (LINUX_S_ISBLK(mode))
+ return EXT2_FT_BLKDEV;
+
+ if (LINUX_S_ISLNK(mode))
+ return EXT2_FT_SYMLINK;
+
+ if (LINUX_S_ISFIFO(mode))
+ return EXT2_FT_FIFO;
+
+ if (LINUX_S_ISSOCK(mode))
+ return EXT2_FT_SOCK;
+
+ return 0;
+}
+/*
+ * unix.c - The unix-specific code for e2fsck
+ *
+ * Copyright (C) 1993, 1994, 1995, 1996, 1997 Theodore Ts'o.
+ *
+ * %Begin-Header%
+ * This file may be redistributed under the terms of the GNU Public
+ * License.
+ * %End-Header%
+ */
+
-#include "e2fsbb.h"
-#include "e2fsck/e2fsck.h"
-#include "e2fsck/problem.h"
/* Command line options */
static int swapfs;
#ifdef ENABLE_SWAPFS
static int normalize_swapfs;
#endif
-static int cflag; /* check disk */
+static int cflag; /* check disk */
static int show_version_only;
static int verbose;
static int keep_bad_blocks;
static char *bad_blocks_file;
-e2fsck_t e2fsck_global_ctx; /* Try your very best not to use this! */
-
-#ifdef __CONFIG_JBD_DEBUG__E2FS /* Enabled by configure --enable-jfs-debug */
+#ifdef __CONFIG_JBD_DEBUG__E2FS /* Enabled by configure --enable-jfs-debug */
int journal_enable_debug = -1;
#endif
}
#endif
-static void show_stats(e2fsck_t ctx)
+static void show_stats(e2fsck_t ctx)
{
ext2_filsys fs = ctx->fs;
int inodes, inodes_used, blocks, blocks_used;
frag_percent = (10000 * ctx->fs_fragmented) / inodes_used;
frag_percent = (frag_percent + 5) / 10;
-
+
if (!verbose) {
printf("%s: %d/%d files (%0d.%d%% non-contiguous), %d/%d blocks\n",
ctx->device_name, inodes_used, inodes,
static void check_mount(e2fsck_t ctx)
{
- errcode_t retval;
- int cont;
+ errcode_t retval;
+ int cont;
retval = ext2fs_check_if_mounted(ctx->filesystem_name,
&ctx->mount_flags);
static int is_on_batt(void)
{
- FILE *f;
- DIR *d;
- char tmp[80], tmp2[80], fname[80];
- unsigned int acflag;
- struct dirent* de;
+ FILE *f;
+ DIR *d;
+ char tmp[80], tmp2[80], fname[80];
+ unsigned int acflag;
+ struct dirent* de;
f = fopen("/proc/apm", "r");
if (f) {
- if (fscanf(f, "%s %s %s %x", tmp, tmp, tmp, &acflag) != 4)
+ if (fscanf(f, "%s %s %s %x", tmp, tmp, tmp, &acflag) != 4)
acflag = 1;
fclose(f);
return (acflag != 1);
while ((de=readdir(d)) != NULL) {
if (!strncmp(".", de->d_name, 1))
continue;
- snprintf(fname, 80, "/proc/acpi/ac_adapter/%s/state",
+ snprintf(fname, 80, "/proc/acpi/ac_adapter/%s/state",
de->d_name);
f = fopen(fname, "r");
if (!f)
long next_check;
int batt = is_on_batt();
time_t now = time(0);
-
+
if ((ctx->options & E2F_OPT_FORCE) || bad_blocks_file ||
cflag || swapfs)
return;
-
+
if ((fs->super->s_state & EXT2_ERROR_FS) ||
!ext2fs_test_valid(fs))
reason = _(" contains a file system with errors");
(unsigned) fs->super->s_max_mnt_count)) {
reason = _(" has been mounted %u times without being checked");
reason_arg = fs->super->s_mnt_count;
- if (batt && (fs->super->s_mnt_count <
+ if (batt && (fs->super->s_mnt_count <
(unsigned) fs->super->s_max_mnt_count*2))
reason = 0;
} else if (fs->super->s_checkinterval &&
- ((now - fs->super->s_lastcheck) >=
+ ((now - fs->super->s_lastcheck) >=
fs->super->s_checkinterval)) {
reason = _(" has gone %u days without being checked");
reason_arg = (now - fs->super->s_lastcheck)/(3600*24);
- if (batt && ((now - fs->super->s_lastcheck) <
+ if (batt && ((now - fs->super->s_lastcheck) <
fs->super->s_checkinterval*2))
reason = 0;
}
next_check = 100000;
if (fs->super->s_max_mnt_count > 0) {
next_check = fs->super->s_max_mnt_count - fs->super->s_mnt_count;
- if (next_check <= 0)
+ if (next_check <= 0)
next_check = 1;
}
if (fs->super->s_checkinterval &&
* For completion notice
*/
struct percent_tbl {
- int max_pass;
- int table[32];
+ int max_pass;
+ int table[32];
};
-struct percent_tbl e2fsck_tbl = {
+static struct percent_tbl e2fsck_tbl = {
5, { 0, 70, 90, 92, 95, 100 }
};
static char bar[128], spaces[128];
static float calc_percent(struct percent_tbl *tbl, int pass, int curr,
int max)
{
- float percent;
-
+ float percent;
+
if (pass <= 0)
return 0.0;
if (pass > tbl->max_pass || max == 0)
{
if (!(ctx->flags & E2F_FLAG_PROG_BAR))
return;
-
+
printf("%s%s\r%s", ctx->start_meta, spaces + (sizeof(spaces) - 80),
ctx->stop_meta);
fflush(stdout);
unsigned int dpynum)
{
static const char spinner[] = "\\|/-";
- int i;
- unsigned int tick;
- struct timeval tv;
+ int i;
+ unsigned int tick;
+ struct timeval tv;
int dpywidth;
int fixed_percent;
/*
* Calculate the new progress position. If the
* percentage hasn't changed, then we skip out right
- * away.
+ * away.
*/
fixed_percent = (int) ((10 * percent) + 0.5);
if (ctx->progress_last_percent == fixed_percent)
else
fputs(" \r", stdout);
fputs(ctx->stop_meta, stdout);
-
+
if (fixed_percent == 1000)
e2fsck_clear_progbar(ctx);
fflush(stdout);
if (pass == 0)
return 0;
-
+
if (ctx->progress_fd) {
sprintf(buf, "%d %lu %lu\n", pass, cur, max);
write(ctx->progress_fd, buf, strlen(buf));
static void reserve_stdio_fds(void)
{
- int fd;
+ int fd;
while (1) {
fd = open("/dev/null", O_RDWR);
close(fd);
}
-#ifdef HAVE_SIGNAL_H
static void signal_progress_on(int sig EXT2FS_ATTR((unused)))
{
e2fsck_t ctx = e2fsck_global_ctx;
ctx->flags |= E2F_FLAG_CANCEL;
}
-#endif
static void parse_extended_opts(e2fsck_t ctx, const char *opts)
{
- char *buf, *token, *next, *p, *arg;
- int ea_ver;
- int extended_usage = 0;
+ char *buf, *token, *next, *p, *arg;
+ int ea_ver;
+ int extended_usage = 0;
buf = string_copy(ctx, opts, 0);
for (token = buf; token && *token; token = next) {
if (p) {
*p = 0;
next = p+1;
- }
+ }
arg = strchr(token, '=');
if (arg) {
*arg = 0;
"\tea_ver=<ea_version (1 or 2)\n\n"));
exit(1);
}
-}
+}
static errcode_t PRS(int argc, char *argv[], e2fsck_t *ret_ctx)
{
- int flush = 0;
- int c, fd;
+ int flush = 0;
+ int c, fd;
#ifdef MTRACE
- extern void *mallwatch;
-#endif
- e2fsck_t ctx;
- errcode_t retval;
-#ifdef HAVE_SIGNAL_H
- struct sigaction sa;
+ extern void *mallwatch;
#endif
- char *extended_opts = 0;
+ e2fsck_t ctx;
+ errcode_t retval;
+ struct sigaction sa;
+ char *extended_opts = 0;
retval = e2fsck_allocate_context(&ctx);
if (retval)
memset(bar, '=', sizeof(bar)-1);
memset(spaces, ' ', sizeof(spaces)-1);
blkid_get_cache(&ctx->blkid, NULL);
-
+
if (argc && *argv)
ctx->program_name = *argv;
else
case 'a':
if (ctx->options & (E2F_OPT_YES|E2F_OPT_NO)) {
conflict_opt:
- fatal_error(ctx,
+ fatal_error(ctx,
_("Only one the options -p/-a, -n or -y may be specified."));
}
ctx->options |= E2F_OPT_PREEN;
!cflag && !swapfs && !(ctx->options & E2F_OPT_COMPRESS_DIRS))
ctx->options |= E2F_OPT_READONLY;
ctx->io_options = strchr(argv[optind], '?');
- if (ctx->io_options)
+ if (ctx->io_options)
*ctx->io_options++ = 0;
ctx->filesystem_name = blkid_get_devname(ctx->blkid, argv[optind], 0);
if (!ctx->filesystem_name) {
- com_err(ctx->program_name, 0, _("Unable to resolve '%s'"),
+ com_err(ctx->program_name, 0, _("Unable to resolve '%s'"),
argv[optind]);
fatal_error(ctx, 0);
}
if (extended_opts)
parse_extended_opts(ctx, extended_opts);
-
+
if (flush) {
fd = open(ctx->filesystem_name, O_RDONLY, 0);
if (fd < 0) {
"not be both used at the same time.\n"));
exit(FSCK_USAGE);
}
-#ifdef HAVE_SIGNAL_H
/*
* Set up signal action
*/
sigaction(SIGUSR1, &sa, 0);
sa.sa_handler = signal_progress_off;
sigaction(SIGUSR2, &sa, 0);
-#endif
/* Update our PATH to include /sbin if we need to run badblocks */
if (cflag) {
static const char *my_ver_string = E2FSPROGS_VERSION;
static const char *my_ver_date = E2FSPROGS_DATE;
-
+
int e2fsck_main (int argc, char *argv[])
{
- errcode_t retval = 0;
- int exit_value = FSCK_OK;
- ext2_filsys fs = 0;
- io_manager io_ptr;
+ errcode_t retval = 0;
+ int exit_value = FSCK_OK;
+ ext2_filsys fs = 0;
+ io_manager io_ptr;
struct ext2_super_block *sb;
- const char *lib_ver_date;
- int my_ver, lib_ver;
- e2fsck_t ctx;
+ const char *lib_ver_date;
+ int my_ver, lib_ver;
+ e2fsck_t ctx;
struct problem_context pctx;
int flags, run_result;
-
+
clear_problem_context(&pctx);
#ifdef MTRACE
mtrace();
"out of date!\n"));
show_version_only++;
}
-
+
retval = PRS(argc, argv, &ctx);
if (retval) {
com_err("e2fsck", retval,
exit(FSCK_ERROR);
}
reserve_stdio_fds();
-
+
#ifdef RESOURCE_TRACK
init_resource_track(&ctx->global_rtrack);
#endif
error_message(EXT2_ET_BASE), lib_ver_date);
exit(FSCK_OK);
}
-
+
check_mount(ctx);
-
+
if (!(ctx->options & E2F_OPT_PREEN) &&
!(ctx->options & E2F_OPT_NO) &&
!(ctx->options & E2F_OPT_YES)) {
flags |= EXT2_FLAG_RW;
if (ctx->superblock && ctx->blocksize) {
- retval = ext2fs_open2(ctx->filesystem_name, ctx->io_options,
+ retval = ext2fs_open2(ctx->filesystem_name, ctx->io_options,
flags, ctx->superblock, ctx->blocksize,
io_ptr, &fs);
} else if (ctx->superblock) {
int blocksize;
for (blocksize = EXT2_MIN_BLOCK_SIZE;
blocksize <= EXT2_MAX_BLOCK_SIZE; blocksize *= 2) {
- retval = ext2fs_open2(ctx->filesystem_name,
+ retval = ext2fs_open2(ctx->filesystem_name,
ctx->io_options, flags,
ctx->superblock, blocksize,
io_ptr, &fs);
if (!retval)
break;
}
- } else
- retval = ext2fs_open2(ctx->filesystem_name, ctx->io_options,
+ } else
+ retval = ext2fs_open2(ctx->filesystem_name, ctx->io_options,
flags, 0, 0, io_ptr, &fs);
if (!ctx->superblock && !(ctx->options & E2F_OPT_PREEN) &&
!(ctx->flags & E2F_FLAG_SB_SPECIFIED) &&
}
e2fsck_write_bitmaps(ctx);
-
+
ext2fs_close(fs);
ctx->fs = NULL;
free(ctx->filesystem_name);
free(ctx->journal_name);
e2fsck_free_context(ctx);
-
+
#ifdef RESOURCE_TRACK
if (ctx->options & E2F_OPT_TIME)
print_resource_track(NULL, &ctx->global_rtrack);
+++ /dev/null
-/*
- * badblocks.c --- replace/append bad blocks to the bad block inode
- *
- * Copyright (C) 1993, 1994 Theodore Ts'o. This file may be
- * redistributed under the terms of the GNU Public License.
- */
-
-#include <time.h>
-#ifdef HAVE_ERRNO_H
-#include <errno.h>
-#endif
-
-#include "e2fsck.h"
-
-static int check_bb_inode_blocks(ext2_filsys fs, blk_t *block_nr, int blockcnt,
- void *priv_data);
-
-
-static void invalid_block(ext2_filsys fs EXT2FS_ATTR((unused)), blk_t blk)
-{
- printf(_("Bad block %u out of range; ignored.\n"), blk);
- return;
-}
-
-void read_bad_blocks_file(e2fsck_t ctx, const char *bad_blocks_file,
- int replace_bad_blocks)
-{
- ext2_filsys fs = ctx->fs;
- errcode_t retval;
- badblocks_list bb_list = 0;
- FILE *f;
- char buf[1024];
-
- e2fsck_read_bitmaps(ctx);
-
- /*
- * Make sure the bad block inode is sane. If there are any
- * illegal blocks, clear them.
- */
- retval = ext2fs_block_iterate(fs, EXT2_BAD_INO, 0, 0,
- check_bb_inode_blocks, 0);
- if (retval) {
- com_err("ext2fs_block_iterate", retval,
- _("while sanity checking the bad blocks inode"));
- goto fatal;
- }
-
- /*
- * If we're appending to the bad blocks inode, read in the
- * current bad blocks.
- */
- if (!replace_bad_blocks) {
- retval = ext2fs_read_bb_inode(fs, &bb_list);
- if (retval) {
- com_err("ext2fs_read_bb_inode", retval,
- _("while reading the bad blocks inode"));
- goto fatal;
- }
- }
-
- /*
- * Now read in the bad blocks from the file; if
- * bad_blocks_file is null, then try to run the badblocks
- * command.
- */
- if (bad_blocks_file) {
- f = fopen(bad_blocks_file, "r");
- if (!f) {
- com_err("read_bad_blocks_file", errno,
- _("while trying to open %s"), bad_blocks_file);
- goto fatal;
- }
- } else {
- sprintf(buf, "badblocks -b %d %s%s%s %d", fs->blocksize,
- (ctx->options & E2F_OPT_PREEN) ? "" : "-s ",
- (ctx->options & E2F_OPT_WRITECHECK) ? "-n " : "",
- fs->device_name, fs->super->s_blocks_count);
- f = popen(buf, "r");
- if (!f) {
- com_err("read_bad_blocks_file", errno,
- _("while trying popen '%s'"), buf);
- goto fatal;
- }
- }
- retval = ext2fs_read_bb_FILE(fs, f, &bb_list, invalid_block);
- if (bad_blocks_file)
- fclose(f);
- else
- pclose(f);
- if (retval) {
- com_err("ext2fs_read_bb_FILE", retval,
- _("while reading in list of bad blocks from file"));
- goto fatal;
- }
-
- /*
- * Finally, update the bad blocks from the bad_block_map
- */
- retval = ext2fs_update_bb_inode(fs, bb_list);
- if (retval) {
- com_err("ext2fs_update_bb_inode", retval,
- _("while updating bad block inode"));
- goto fatal;
- }
-
- ext2fs_badblocks_list_free(bb_list);
- return;
-
-fatal:
- ctx->flags |= E2F_FLAG_ABORT;
- return;
-
-}
-
-static int check_bb_inode_blocks(ext2_filsys fs,
- blk_t *block_nr,
- int blockcnt EXT2FS_ATTR((unused)),
- void *priv_data EXT2FS_ATTR((unused)))
-{
- if (!*block_nr)
- return 0;
-
- /*
- * If the block number is outrageous, clear it and ignore it.
- */
- if (*block_nr >= fs->super->s_blocks_count ||
- *block_nr < fs->super->s_first_data_block) {
- printf(_("Warning illegal block %u found in bad block inode. Cleared.\n"), *block_nr);
- *block_nr = 0;
- return BLOCK_CHANGED;
- }
-
- return 0;
-}
-
+++ /dev/null
-/*
- * Dictionary Abstract Data Type
- * Copyright (C) 1997 Kaz Kylheku <kaz@ashi.footprints.net>
- *
- * Free Software License:
- *
- * All rights are reserved by the author, with the following exceptions:
- * Permission is granted to freely reproduce and distribute this software,
- * possibly in exchange for a fee, provided that this copyright notice appears
- * intact. Permission is also granted to adapt this software to produce
- * derivative works, as long as the modified versions carry this copyright
- * notice and additional notices stating that the work has been modified.
- * This source code may be translated into executable form and incorporated
- * into proprietary software; there is no requirement for such software to
- * contain a copyright notice related to this source.
- *
- * $Id: dict.c,v 1.40.2.7 2000/11/13 01:36:44 kaz Exp $
- * $Name: kazlib_1_20 $
- */
-
-#ifdef __GNUC__
-#define EXT2FS_ATTR(x) __attribute__(x)
-#else
-#define EXT2FS_ATTR(x)
-#endif
-
-#include <stdlib.h>
-#include <stddef.h>
-#include <assert.h>
-#define DICT_IMPLEMENTATION
-#include "dict.h"
-
-#ifndef NDEBUG
-# define NDEBUG
-#endif
-
-/*
- * These macros provide short convenient names for structure members,
- * which are embellished with dict_ prefixes so that they are
- * properly confined to the documented namespace. It's legal for a
- * program which uses dict to define, for instance, a macro called ``parent''.
- * Such a macro would interfere with the dnode_t struct definition.
- * In general, highly portable and reusable C modules which expose their
- * structures need to confine structure member names to well-defined spaces.
- * The resulting identifiers aren't necessarily convenient to use, nor
- * readable, in the implementation, however!
- */
-
-#define left dict_left
-#define right dict_right
-#define parent dict_parent
-#define color dict_color
-#define key dict_key
-#define data dict_data
-
-#define nilnode dict_nilnode
-#define nodecount dict_nodecount
-#define maxcount dict_maxcount
-#define compare dict_compare
-#define allocnode dict_allocnode
-#define freenode dict_freenode
-#define context dict_context
-#define dupes dict_dupes
-
-#define dictptr dict_dictptr
-
-#define dict_root(D) ((D)->nilnode.left)
-#define dict_nil(D) (&(D)->nilnode)
-#define DICT_DEPTH_MAX 64
-
-static dnode_t *dnode_alloc(void *context);
-static void dnode_free(dnode_t *node, void *context);
-
-/*
- * Perform a ``left rotation'' adjustment on the tree. The given node P and
- * its right child C are rearranged so that the P instead becomes the left
- * child of C. The left subtree of C is inherited as the new right subtree
- * for P. The ordering of the keys within the tree is thus preserved.
- */
-
-static void rotate_left(dnode_t *upper)
-{
- dnode_t *lower, *lowleft, *upparent;
-
- lower = upper->right;
- upper->right = lowleft = lower->left;
- lowleft->parent = upper;
-
- lower->parent = upparent = upper->parent;
-
- /* don't need to check for root node here because root->parent is
- the sentinel nil node, and root->parent->left points back to root */
-
- if (upper == upparent->left) {
- upparent->left = lower;
- } else {
- assert (upper == upparent->right);
- upparent->right = lower;
- }
-
- lower->left = upper;
- upper->parent = lower;
-}
-
-/*
- * This operation is the ``mirror'' image of rotate_left. It is
- * the same procedure, but with left and right interchanged.
- */
-
-static void rotate_right(dnode_t *upper)
-{
- dnode_t *lower, *lowright, *upparent;
-
- lower = upper->left;
- upper->left = lowright = lower->right;
- lowright->parent = upper;
-
- lower->parent = upparent = upper->parent;
-
- if (upper == upparent->right) {
- upparent->right = lower;
- } else {
- assert (upper == upparent->left);
- upparent->left = lower;
- }
-
- lower->right = upper;
- upper->parent = lower;
-}
-
-/*
- * Do a postorder traversal of the tree rooted at the specified
- * node and free everything under it. Used by dict_free().
- */
-
-static void free_nodes(dict_t *dict, dnode_t *node, dnode_t *nil)
-{
- if (node == nil)
- return;
- free_nodes(dict, node->left, nil);
- free_nodes(dict, node->right, nil);
- dict->freenode(node, dict->context);
-}
-
-/*
- * This procedure performs a verification that the given subtree is a binary
- * search tree. It performs an inorder traversal of the tree using the
- * dict_next() successor function, verifying that the key of each node is
- * strictly lower than that of its successor, if duplicates are not allowed,
- * or lower or equal if duplicates are allowed. This function is used for
- * debugging purposes.
- */
-#ifndef NDEBUG
-static int verify_bintree(dict_t *dict)
-{
- dnode_t *first, *next;
-
- first = dict_first(dict);
-
- if (dict->dupes) {
- while (first && (next = dict_next(dict, first))) {
- if (dict->compare(first->key, next->key) > 0)
- return 0;
- first = next;
- }
- } else {
- while (first && (next = dict_next(dict, first))) {
- if (dict->compare(first->key, next->key) >= 0)
- return 0;
- first = next;
- }
- }
- return 1;
-}
-
-/*
- * This function recursively verifies that the given binary subtree satisfies
- * three of the red black properties. It checks that every red node has only
- * black children. It makes sure that each node is either red or black. And it
- * checks that every path has the same count of black nodes from root to leaf.
- * It returns the blackheight of the given subtree; this allows blackheights to
- * be computed recursively and compared for left and right siblings for
- * mismatches. It does not check for every nil node being black, because there
- * is only one sentinel nil node. The return value of this function is the
- * black height of the subtree rooted at the node ``root'', or zero if the
- * subtree is not red-black.
- */
-
-static unsigned int verify_redblack(dnode_t *nil, dnode_t *root)
-{
- unsigned height_left, height_right;
-
- if (root != nil) {
- height_left = verify_redblack(nil, root->left);
- height_right = verify_redblack(nil, root->right);
- if (height_left == 0 || height_right == 0)
- return 0;
- if (height_left != height_right)
- return 0;
- if (root->color == dnode_red) {
- if (root->left->color != dnode_black)
- return 0;
- if (root->right->color != dnode_black)
- return 0;
- return height_left;
- }
- if (root->color != dnode_black)
- return 0;
- return height_left + 1;
- }
- return 1;
-}
-
-/*
- * Compute the actual count of nodes by traversing the tree and
- * return it. This could be compared against the stored count to
- * detect a mismatch.
- */
-
-static dictcount_t verify_node_count(dnode_t *nil, dnode_t *root)
-{
- if (root == nil)
- return 0;
- else
- return 1 + verify_node_count(nil, root->left)
- + verify_node_count(nil, root->right);
-}
-#endif
-
-/*
- * Verify that the tree contains the given node. This is done by
- * traversing all of the nodes and comparing their pointers to the
- * given pointer. Returns 1 if the node is found, otherwise
- * returns zero. It is intended for debugging purposes.
- */
-
-static int verify_dict_has_node(dnode_t *nil, dnode_t *root, dnode_t *node)
-{
- if (root != nil) {
- return root == node
- || verify_dict_has_node(nil, root->left, node)
- || verify_dict_has_node(nil, root->right, node);
- }
- return 0;
-}
-
-
-#ifdef E2FSCK_NOTUSED
-/*
- * Dynamically allocate and initialize a dictionary object.
- */
-
-dict_t *dict_create(dictcount_t maxcount, dict_comp_t comp)
-{
- dict_t *new = malloc(sizeof *new);
-
- if (new) {
- new->compare = comp;
- new->allocnode = dnode_alloc;
- new->freenode = dnode_free;
- new->context = NULL;
- new->nodecount = 0;
- new->maxcount = maxcount;
- new->nilnode.left = &new->nilnode;
- new->nilnode.right = &new->nilnode;
- new->nilnode.parent = &new->nilnode;
- new->nilnode.color = dnode_black;
- new->dupes = 0;
- }
- return new;
-}
-#endif /* E2FSCK_NOTUSED */
-
-/*
- * Select a different set of node allocator routines.
- */
-
-void dict_set_allocator(dict_t *dict, dnode_alloc_t al,
- dnode_free_t fr, void *context)
-{
- assert (dict_count(dict) == 0);
- assert ((al == NULL && fr == NULL) || (al != NULL && fr != NULL));
-
- dict->allocnode = al ? al : dnode_alloc;
- dict->freenode = fr ? fr : dnode_free;
- dict->context = context;
-}
-
-#ifdef E2FSCK_NOTUSED
-/*
- * Free a dynamically allocated dictionary object. Removing the nodes
- * from the tree before deleting it is required.
- */
-
-void dict_destroy(dict_t *dict)
-{
- assert (dict_isempty(dict));
- free(dict);
-}
-#endif
-
-/*
- * Free all the nodes in the dictionary by using the dictionary's
- * installed free routine. The dictionary is emptied.
- */
-
-void dict_free_nodes(dict_t *dict)
-{
- dnode_t *nil = dict_nil(dict), *root = dict_root(dict);
- free_nodes(dict, root, nil);
- dict->nodecount = 0;
- dict->nilnode.left = &dict->nilnode;
- dict->nilnode.right = &dict->nilnode;
-}
-
-#ifdef E2FSCK_NOTUSED
-/*
- * Obsolescent function, equivalent to dict_free_nodes
- */
-void dict_free(dict_t *dict)
-{
-#ifdef KAZLIB_OBSOLESCENT_DEBUG
- assert ("call to obsolescent function dict_free()" && 0);
-#endif
- dict_free_nodes(dict);
-}
-#endif
-
-/*
- * Initialize a user-supplied dictionary object.
- */
-
-dict_t *dict_init(dict_t *dict, dictcount_t maxcount, dict_comp_t comp)
-{
- dict->compare = comp;
- dict->allocnode = dnode_alloc;
- dict->freenode = dnode_free;
- dict->context = NULL;
- dict->nodecount = 0;
- dict->maxcount = maxcount;
- dict->nilnode.left = &dict->nilnode;
- dict->nilnode.right = &dict->nilnode;
- dict->nilnode.parent = &dict->nilnode;
- dict->nilnode.color = dnode_black;
- dict->dupes = 0;
- return dict;
-}
-
-#ifdef E2FSCK_NOTUSED
-/*
- * Initialize a dictionary in the likeness of another dictionary
- */
-
-void dict_init_like(dict_t *dict, const dict_t *template)
-{
- dict->compare = template->compare;
- dict->allocnode = template->allocnode;
- dict->freenode = template->freenode;
- dict->context = template->context;
- dict->nodecount = 0;
- dict->maxcount = template->maxcount;
- dict->nilnode.left = &dict->nilnode;
- dict->nilnode.right = &dict->nilnode;
- dict->nilnode.parent = &dict->nilnode;
- dict->nilnode.color = dnode_black;
- dict->dupes = template->dupes;
-
- assert (dict_similar(dict, template));
-}
-
-/*
- * Remove all nodes from the dictionary (without freeing them in any way).
- */
-
-static void dict_clear(dict_t *dict)
-{
- dict->nodecount = 0;
- dict->nilnode.left = &dict->nilnode;
- dict->nilnode.right = &dict->nilnode;
- dict->nilnode.parent = &dict->nilnode;
- assert (dict->nilnode.color == dnode_black);
-}
-
-
-/*
- * Verify the integrity of the dictionary structure. This is provided for
- * debugging purposes, and should be placed in assert statements. Just because
- * this function succeeds doesn't mean that the tree is not corrupt. Certain
- * corruptions in the tree may simply cause undefined behavior.
- */
-
-int dict_verify(dict_t *dict)
-{
-#ifndef NDEBUG
- dnode_t *nil = dict_nil(dict), *root = dict_root(dict);
-
- /* check that the sentinel node and root node are black */
- if (root->color != dnode_black)
- return 0;
- if (nil->color != dnode_black)
- return 0;
- if (nil->right != nil)
- return 0;
- /* nil->left is the root node; check that its parent pointer is nil */
- if (nil->left->parent != nil)
- return 0;
- /* perform a weak test that the tree is a binary search tree */
- if (!verify_bintree(dict))
- return 0;
- /* verify that the tree is a red-black tree */
- if (!verify_redblack(nil, root))
- return 0;
- if (verify_node_count(nil, root) != dict_count(dict))
- return 0;
-#endif
- return 1;
-}
-
-/*
- * Determine whether two dictionaries are similar: have the same comparison and
- * allocator functions, and same status as to whether duplicates are allowed.
- */
-
-int dict_similar(const dict_t *left, const dict_t *right)
-{
- if (left->compare != right->compare)
- return 0;
-
- if (left->allocnode != right->allocnode)
- return 0;
-
- if (left->freenode != right->freenode)
- return 0;
-
- if (left->context != right->context)
- return 0;
-
- if (left->dupes != right->dupes)
- return 0;
-
- return 1;
-}
-#endif /* E2FSCK_NOTUSED */
-
-/*
- * Locate a node in the dictionary having the given key.
- * If the node is not found, a null a pointer is returned (rather than
- * a pointer that dictionary's nil sentinel node), otherwise a pointer to the
- * located node is returned.
- */
-
-dnode_t *dict_lookup(dict_t *dict, const void *key)
-{
- dnode_t *root = dict_root(dict);
- dnode_t *nil = dict_nil(dict);
- dnode_t *saved;
- int result;
-
- /* simple binary search adapted for trees that contain duplicate keys */
-
- while (root != nil) {
- result = dict->compare(key, root->key);
- if (result < 0)
- root = root->left;
- else if (result > 0)
- root = root->right;
- else {
- if (!dict->dupes) { /* no duplicates, return match */
- return root;
- } else { /* could be dupes, find leftmost one */
- do {
- saved = root;
- root = root->left;
- while (root != nil && dict->compare(key, root->key))
- root = root->right;
- } while (root != nil);
- return saved;
- }
- }
- }
-
- return NULL;
-}
-
-#ifdef E2FSCK_NOTUSED
-/*
- * Look for the node corresponding to the lowest key that is equal to or
- * greater than the given key. If there is no such node, return null.
- */
-
-dnode_t *dict_lower_bound(dict_t *dict, const void *key)
-{
- dnode_t *root = dict_root(dict);
- dnode_t *nil = dict_nil(dict);
- dnode_t *tentative = 0;
-
- while (root != nil) {
- int result = dict->compare(key, root->key);
-
- if (result > 0) {
- root = root->right;
- } else if (result < 0) {
- tentative = root;
- root = root->left;
- } else {
- if (!dict->dupes) {
- return root;
- } else {
- tentative = root;
- root = root->left;
- }
- }
- }
-
- return tentative;
-}
-
-/*
- * Look for the node corresponding to the greatest key that is equal to or
- * lower than the given key. If there is no such node, return null.
- */
-
-dnode_t *dict_upper_bound(dict_t *dict, const void *key)
-{
- dnode_t *root = dict_root(dict);
- dnode_t *nil = dict_nil(dict);
- dnode_t *tentative = 0;
-
- while (root != nil) {
- int result = dict->compare(key, root->key);
-
- if (result < 0) {
- root = root->left;
- } else if (result > 0) {
- tentative = root;
- root = root->right;
- } else {
- if (!dict->dupes) {
- return root;
- } else {
- tentative = root;
- root = root->right;
- }
- }
- }
-
- return tentative;
-}
-#endif
-
-/*
- * Insert a node into the dictionary. The node should have been
- * initialized with a data field. All other fields are ignored.
- * The behavior is undefined if the user attempts to insert into
- * a dictionary that is already full (for which the dict_isfull()
- * function returns true).
- */
-
-void dict_insert(dict_t *dict, dnode_t *node, const void *key)
-{
- dnode_t *where = dict_root(dict), *nil = dict_nil(dict);
- dnode_t *parent = nil, *uncle, *grandpa;
- int result = -1;
-
- node->key = key;
-
-#ifndef NDEBUG
- assert (!dict_isfull(dict));
- assert (!dict_contains(dict, node));
- assert (!dnode_is_in_a_dict(node));
-#endif
-
- /* basic binary tree insert */
-
- while (where != nil) {
- parent = where;
- result = dict->compare(key, where->key);
- /* trap attempts at duplicate key insertion unless it's explicitly allowed */
- assert (dict->dupes || result != 0);
- if (result < 0)
- where = where->left;
- else
- where = where->right;
- }
-
- assert (where == nil);
-
- if (result < 0)
- parent->left = node;
- else
- parent->right = node;
-
- node->parent = parent;
- node->left = nil;
- node->right = nil;
-
- dict->nodecount++;
-
- /* red black adjustments */
-
- node->color = dnode_red;
-
- while (parent->color == dnode_red) {
- grandpa = parent->parent;
- if (parent == grandpa->left) {
- uncle = grandpa->right;
- if (uncle->color == dnode_red) { /* red parent, red uncle */
- parent->color = dnode_black;
- uncle->color = dnode_black;
- grandpa->color = dnode_red;
- node = grandpa;
- parent = grandpa->parent;
- } else { /* red parent, black uncle */
- if (node == parent->right) {
- rotate_left(parent);
- parent = node;
- assert (grandpa == parent->parent);
- /* rotation between parent and child preserves grandpa */
- }
- parent->color = dnode_black;
- grandpa->color = dnode_red;
- rotate_right(grandpa);
- break;
- }
- } else { /* symmetric cases: parent == parent->parent->right */
- uncle = grandpa->left;
- if (uncle->color == dnode_red) {
- parent->color = dnode_black;
- uncle->color = dnode_black;
- grandpa->color = dnode_red;
- node = grandpa;
- parent = grandpa->parent;
- } else {
- if (node == parent->left) {
- rotate_right(parent);
- parent = node;
- assert (grandpa == parent->parent);
- }
- parent->color = dnode_black;
- grandpa->color = dnode_red;
- rotate_left(grandpa);
- break;
- }
- }
- }
-
- dict_root(dict)->color = dnode_black;
-
-#ifdef E2FSCK_NOTUSED
- assert (dict_verify(dict));
-#endif
-}
-
-#ifdef E2FSCK_NOTUSED
-/*
- * Delete the given node from the dictionary. If the given node does not belong
- * to the given dictionary, undefined behavior results. A pointer to the
- * deleted node is returned.
- */
-
-dnode_t *dict_delete(dict_t *dict, dnode_t *delete)
-{
- dnode_t *nil = dict_nil(dict), *child, *delparent = delete->parent;
-
- /* basic deletion */
-
- assert (!dict_isempty(dict));
- assert (dict_contains(dict, delete));
-
- /*
- * If the node being deleted has two children, then we replace it with its
- * successor (i.e. the leftmost node in the right subtree.) By doing this,
- * we avoid the traditional algorithm under which the successor's key and
- * value *only* move to the deleted node and the successor is spliced out
- * from the tree. We cannot use this approach because the user may hold
- * pointers to the successor, or nodes may be inextricably tied to some
- * other structures by way of embedding, etc. So we must splice out the
- * node we are given, not some other node, and must not move contents from
- * one node to another behind the user's back.
- */
-
- if (delete->left != nil && delete->right != nil) {
- dnode_t *next = dict_next(dict, delete);
- dnode_t *nextparent = next->parent;
- dnode_color_t nextcolor = next->color;
-
- assert (next != nil);
- assert (next->parent != nil);
- assert (next->left == nil);
-
- /*
- * First, splice out the successor from the tree completely, by
- * moving up its right child into its place.
- */
-
- child = next->right;
- child->parent = nextparent;
-
- if (nextparent->left == next) {
- nextparent->left = child;
- } else {
- assert (nextparent->right == next);
- nextparent->right = child;
- }
-
- /*
- * Now that the successor has been extricated from the tree, install it
- * in place of the node that we want deleted.
- */
-
- next->parent = delparent;
- next->left = delete->left;
- next->right = delete->right;
- next->left->parent = next;
- next->right->parent = next;
- next->color = delete->color;
- delete->color = nextcolor;
-
- if (delparent->left == delete) {
- delparent->left = next;
- } else {
- assert (delparent->right == delete);
- delparent->right = next;
- }
-
- } else {
- assert (delete != nil);
- assert (delete->left == nil || delete->right == nil);
-
- child = (delete->left != nil) ? delete->left : delete->right;
-
- child->parent = delparent = delete->parent;
-
- if (delete == delparent->left) {
- delparent->left = child;
- } else {
- assert (delete == delparent->right);
- delparent->right = child;
- }
- }
-
- delete->parent = NULL;
- delete->right = NULL;
- delete->left = NULL;
-
- dict->nodecount--;
-
- assert (verify_bintree(dict));
-
- /* red-black adjustments */
-
- if (delete->color == dnode_black) {
- dnode_t *parent, *sister;
-
- dict_root(dict)->color = dnode_red;
-
- while (child->color == dnode_black) {
- parent = child->parent;
- if (child == parent->left) {
- sister = parent->right;
- assert (sister != nil);
- if (sister->color == dnode_red) {
- sister->color = dnode_black;
- parent->color = dnode_red;
- rotate_left(parent);
- sister = parent->right;
- assert (sister != nil);
- }
- if (sister->left->color == dnode_black
- && sister->right->color == dnode_black) {
- sister->color = dnode_red;
- child = parent;
- } else {
- if (sister->right->color == dnode_black) {
- assert (sister->left->color == dnode_red);
- sister->left->color = dnode_black;
- sister->color = dnode_red;
- rotate_right(sister);
- sister = parent->right;
- assert (sister != nil);
- }
- sister->color = parent->color;
- sister->right->color = dnode_black;
- parent->color = dnode_black;
- rotate_left(parent);
- break;
- }
- } else { /* symmetric case: child == child->parent->right */
- assert (child == parent->right);
- sister = parent->left;
- assert (sister != nil);
- if (sister->color == dnode_red) {
- sister->color = dnode_black;
- parent->color = dnode_red;
- rotate_right(parent);
- sister = parent->left;
- assert (sister != nil);
- }
- if (sister->right->color == dnode_black
- && sister->left->color == dnode_black) {
- sister->color = dnode_red;
- child = parent;
- } else {
- if (sister->left->color == dnode_black) {
- assert (sister->right->color == dnode_red);
- sister->right->color = dnode_black;
- sister->color = dnode_red;
- rotate_left(sister);
- sister = parent->left;
- assert (sister != nil);
- }
- sister->color = parent->color;
- sister->left->color = dnode_black;
- parent->color = dnode_black;
- rotate_right(parent);
- break;
- }
- }
- }
-
- child->color = dnode_black;
- dict_root(dict)->color = dnode_black;
- }
-
-#ifdef E2FSCK_NOTUSED
- assert (dict_verify(dict));
-#endif
-
- return delete;
-}
-#endif /* E2FSCK_NOTUSED */
-
-/*
- * Allocate a node using the dictionary's allocator routine, give it
- * the data item.
- */
-
-int dict_alloc_insert(dict_t *dict, const void *key, void *data)
-{
- dnode_t *node = dict->allocnode(dict->context);
-
- if (node) {
- dnode_init(node, data);
- dict_insert(dict, node, key);
- return 1;
- }
- return 0;
-}
-
-#ifdef E2FSCK_NOTUSED
-void dict_delete_free(dict_t *dict, dnode_t *node)
-{
- dict_delete(dict, node);
- dict->freenode(node, dict->context);
-}
-#endif
-
-/*
- * Return the node with the lowest (leftmost) key. If the dictionary is empty
- * (that is, dict_isempty(dict) returns 1) a null pointer is returned.
- */
-
-dnode_t *dict_first(dict_t *dict)
-{
- dnode_t *nil = dict_nil(dict), *root = dict_root(dict), *left;
-
- if (root != nil)
- while ((left = root->left) != nil)
- root = left;
-
- return (root == nil) ? NULL : root;
-}
-
-/*
- * Return the node with the highest (rightmost) key. If the dictionary is empty
- * (that is, dict_isempty(dict) returns 1) a null pointer is returned.
- */
-
-dnode_t *dict_last(dict_t *dict)
-{
- dnode_t *nil = dict_nil(dict), *root = dict_root(dict), *right;
-
- if (root != nil)
- while ((right = root->right) != nil)
- root = right;
-
- return (root == nil) ? NULL : root;
-}
-
-/*
- * Return the given node's successor node---the node which has the
- * next key in the the left to right ordering. If the node has
- * no successor, a null pointer is returned rather than a pointer to
- * the nil node.
- */
-
-dnode_t *dict_next(dict_t *dict, dnode_t *curr)
-{
- dnode_t *nil = dict_nil(dict), *parent, *left;
-
- if (curr->right != nil) {
- curr = curr->right;
- while ((left = curr->left) != nil)
- curr = left;
- return curr;
- }
-
- parent = curr->parent;
-
- while (parent != nil && curr == parent->right) {
- curr = parent;
- parent = curr->parent;
- }
-
- return (parent == nil) ? NULL : parent;
-}
-
-/*
- * Return the given node's predecessor, in the key order.
- * The nil sentinel node is returned if there is no predecessor.
- */
-
-dnode_t *dict_prev(dict_t *dict, dnode_t *curr)
-{
- dnode_t *nil = dict_nil(dict), *parent, *right;
-
- if (curr->left != nil) {
- curr = curr->left;
- while ((right = curr->right) != nil)
- curr = right;
- return curr;
- }
-
- parent = curr->parent;
-
- while (parent != nil && curr == parent->left) {
- curr = parent;
- parent = curr->parent;
- }
-
- return (parent == nil) ? NULL : parent;
-}
-
-void dict_allow_dupes(dict_t *dict)
-{
- dict->dupes = 1;
-}
-
-#undef dict_count
-#undef dict_isempty
-#undef dict_isfull
-#undef dnode_get
-#undef dnode_put
-#undef dnode_getkey
-
-dictcount_t dict_count(dict_t *dict)
-{
- return dict->nodecount;
-}
-
-int dict_isempty(dict_t *dict)
-{
- return dict->nodecount == 0;
-}
-
-int dict_isfull(dict_t *dict)
-{
- return dict->nodecount == dict->maxcount;
-}
-
-int dict_contains(dict_t *dict, dnode_t *node)
-{
- return verify_dict_has_node(dict_nil(dict), dict_root(dict), node);
-}
-
-static dnode_t *dnode_alloc(void *context EXT2FS_ATTR((unused)))
-{
- return malloc(sizeof *dnode_alloc(NULL));
-}
-
-static void dnode_free(dnode_t *node, void *context EXT2FS_ATTR((unused)))
-{
- free(node);
-}
-
-dnode_t *dnode_create(void *data)
-{
- dnode_t *new = malloc(sizeof *new);
- if (new) {
- new->data = data;
- new->parent = NULL;
- new->left = NULL;
- new->right = NULL;
- }
- return new;
-}
-
-dnode_t *dnode_init(dnode_t *dnode, void *data)
-{
- dnode->data = data;
- dnode->parent = NULL;
- dnode->left = NULL;
- dnode->right = NULL;
- return dnode;
-}
-
-void dnode_destroy(dnode_t *dnode)
-{
-#ifndef NDEBUG
- assert (!dnode_is_in_a_dict(dnode));
-#endif
- free(dnode);
-}
-
-void *dnode_get(dnode_t *dnode)
-{
- return dnode->data;
-}
-
-const void *dnode_getkey(dnode_t *dnode)
-{
- return dnode->key;
-}
-
-#ifdef E2FSCK_NOTUSED
-void dnode_put(dnode_t *dnode, void *data)
-{
- dnode->data = data;
-}
-
-int dnode_is_in_a_dict(dnode_t *dnode)
-{
- return (dnode->parent && dnode->left && dnode->right);
-}
-
-void dict_process(dict_t *dict, void *context, dnode_process_t function)
-{
- dnode_t *node = dict_first(dict), *next;
-
- while (node != NULL) {
- /* check for callback function deleting */
- /* the next node from under us */
- assert (dict_contains(dict, node));
- next = dict_next(dict, node);
- function(dict, node, context);
- node = next;
- }
-}
-
-static void load_begin_internal(dict_load_t *load, dict_t *dict)
-{
- load->dictptr = dict;
- load->nilnode.left = &load->nilnode;
- load->nilnode.right = &load->nilnode;
-}
-
-void dict_load_begin(dict_load_t *load, dict_t *dict)
-{
- assert (dict_isempty(dict));
- load_begin_internal(load, dict);
-}
-
-void dict_load_next(dict_load_t *load, dnode_t *newnode, const void *key)
-{
- dict_t *dict = load->dictptr;
- dnode_t *nil = &load->nilnode;
-
-#ifndef NDEBUG
- assert (!dnode_is_in_a_dict(newnode));
- assert (dict->nodecount < dict->maxcount);
-
- if (dict->nodecount > 0) {
- if (dict->dupes)
- assert (dict->compare(nil->left->key, key) <= 0);
- else
- assert (dict->compare(nil->left->key, key) < 0);
- }
-#endif
-
- newnode->key = key;
- nil->right->left = newnode;
- nil->right = newnode;
- newnode->left = nil;
- dict->nodecount++;
-}
-
-void dict_load_end(dict_load_t *load)
-{
- dict_t *dict = load->dictptr;
- dnode_t *tree[DICT_DEPTH_MAX] = { 0 };
- dnode_t *curr, *dictnil = dict_nil(dict), *loadnil = &load->nilnode, *next;
- dnode_t *complete = 0;
- dictcount_t fullcount = DICTCOUNT_T_MAX, nodecount = dict->nodecount;
- dictcount_t botrowcount;
- unsigned baselevel = 0, level = 0, i;
-
- assert (dnode_red == 0 && dnode_black == 1);
-
- while (fullcount >= nodecount && fullcount)
- fullcount >>= 1;
-
- botrowcount = nodecount - fullcount;
-
- for (curr = loadnil->left; curr != loadnil; curr = next) {
- next = curr->left;
-
- if (complete == NULL && botrowcount-- == 0) {
- assert (baselevel == 0);
- assert (level == 0);
- baselevel = level = 1;
- complete = tree[0];
-
- if (complete != 0) {
- tree[0] = 0;
- complete->right = dictnil;
- while (tree[level] != 0) {
- tree[level]->right = complete;
- complete->parent = tree[level];
- complete = tree[level];
- tree[level++] = 0;
- }
- }
- }
-
- if (complete == NULL) {
- curr->left = dictnil;
- curr->right = dictnil;
- curr->color = level % 2;
- complete = curr;
-
- assert (level == baselevel);
- while (tree[level] != 0) {
- tree[level]->right = complete;
- complete->parent = tree[level];
- complete = tree[level];
- tree[level++] = 0;
- }
- } else {
- curr->left = complete;
- curr->color = (level + 1) % 2;
- complete->parent = curr;
- tree[level] = curr;
- complete = 0;
- level = baselevel;
- }
- }
-
- if (complete == NULL)
- complete = dictnil;
-
- for (i = 0; i < DICT_DEPTH_MAX; i++) {
- if (tree[i] != 0) {
- tree[i]->right = complete;
- complete->parent = tree[i];
- complete = tree[i];
- }
- }
-
- dictnil->color = dnode_black;
- dictnil->right = dictnil;
- complete->parent = dictnil;
- complete->color = dnode_black;
- dict_root(dict) = complete;
-
-#ifdef E2FSCK_NOTUSED
- assert (dict_verify(dict));
-#endif
-}
-
-void dict_merge(dict_t *dest, dict_t *source)
-{
- dict_load_t load;
- dnode_t *leftnode = dict_first(dest), *rightnode = dict_first(source);
-
- assert (dict_similar(dest, source));
-
- if (source == dest)
- return;
-
- dest->nodecount = 0;
- load_begin_internal(&load, dest);
-
- for (;;) {
- if (leftnode != NULL && rightnode != NULL) {
- if (dest->compare(leftnode->key, rightnode->key) < 0)
- goto copyleft;
- else
- goto copyright;
- } else if (leftnode != NULL) {
- goto copyleft;
- } else if (rightnode != NULL) {
- goto copyright;
- } else {
- assert (leftnode == NULL && rightnode == NULL);
- break;
- }
-
- copyleft:
- {
- dnode_t *next = dict_next(dest, leftnode);
-#ifndef NDEBUG
- leftnode->left = NULL; /* suppress assertion in dict_load_next */
-#endif
- dict_load_next(&load, leftnode, leftnode->key);
- leftnode = next;
- continue;
- }
-
- copyright:
- {
- dnode_t *next = dict_next(source, rightnode);
-#ifndef NDEBUG
- rightnode->left = NULL;
-#endif
- dict_load_next(&load, rightnode, rightnode->key);
- rightnode = next;
- continue;
- }
- }
-
- dict_clear(source);
- dict_load_end(&load);
-}
-#endif /* E2FSCK_NOTUSED */
-
-#ifdef KAZLIB_TEST_MAIN
-
-#include <stdio.h>
-#include <string.h>
-#include <ctype.h>
-#include <stdarg.h>
-
-typedef char input_t[256];
-
-static int tokenize(char *string, ...)
-{
- char **tokptr;
- va_list arglist;
- int tokcount = 0;
-
- va_start(arglist, string);
- tokptr = va_arg(arglist, char **);
- while (tokptr) {
- while (*string && isspace((unsigned char) *string))
- string++;
- if (!*string)
- break;
- *tokptr = string;
- while (*string && !isspace((unsigned char) *string))
- string++;
- tokptr = va_arg(arglist, char **);
- tokcount++;
- if (!*string)
- break;
- *string++ = 0;
- }
- va_end(arglist);
-
- return tokcount;
-}
-
-static int comparef(const void *key1, const void *key2)
-{
- return strcmp(key1, key2);
-}
-
-static char *dupstring(char *str)
-{
- int sz = strlen(str) + 1;
- char *new = malloc(sz);
- if (new)
- memcpy(new, str, sz);
- return new;
-}
-
-static dnode_t *new_node(void *c)
-{
- static dnode_t few[5];
- static int count;
-
- if (count < 5)
- return few + count++;
-
- return NULL;
-}
-
-static void del_node(dnode_t *n, void *c)
-{
-}
-
-static int prompt = 0;
-
-static void construct(dict_t *d)
-{
- input_t in;
- int done = 0;
- dict_load_t dl;
- dnode_t *dn;
- char *tok1, *tok2, *val;
- const char *key;
- char *help =
- "p turn prompt on\n"
- "q finish construction\n"
- "a <key> <val> add new entry\n";
-
- if (!dict_isempty(d))
- puts("warning: dictionary not empty!");
-
- dict_load_begin(&dl, d);
-
- while (!done) {
- if (prompt)
- putchar('>');
- fflush(stdout);
-
- if (!fgets(in, sizeof(input_t), stdin))
- break;
-
- switch (in[0]) {
- case '?':
- puts(help);
- break;
- case 'p':
- prompt = 1;
- break;
- case 'q':
- done = 1;
- break;
- case 'a':
- if (tokenize(in+1, &tok1, &tok2, (char **) 0) != 2) {
- puts("what?");
- break;
- }
- key = dupstring(tok1);
- val = dupstring(tok2);
- dn = dnode_create(val);
-
- if (!key || !val || !dn) {
- puts("out of memory");
- free((void *) key);
- free(val);
- if (dn)
- dnode_destroy(dn);
- }
-
- dict_load_next(&dl, dn, key);
- break;
- default:
- putchar('?');
- putchar('\n');
- break;
- }
- }
-
- dict_load_end(&dl);
-}
-
-int main(void)
-{
- input_t in;
- dict_t darray[10];
- dict_t *d = &darray[0];
- dnode_t *dn;
- int i;
- char *tok1, *tok2, *val;
- const char *key;
-
- char *help =
- "a <key> <val> add value to dictionary\n"
- "d <key> delete value from dictionary\n"
- "l <key> lookup value in dictionary\n"
- "( <key> lookup lower bound\n"
- ") <key> lookup upper bound\n"
- "# <num> switch to alternate dictionary (0-9)\n"
- "j <num> <num> merge two dictionaries\n"
- "f free the whole dictionary\n"
- "k allow duplicate keys\n"
- "c show number of entries\n"
- "t dump whole dictionary in sort order\n"
- "m make dictionary out of sorted items\n"
- "p turn prompt on\n"
- "s switch to non-functioning allocator\n"
- "q quit";
-
- for (i = 0; i < sizeof darray / sizeof *darray; i++)
- dict_init(&darray[i], DICTCOUNT_T_MAX, comparef);
-
- for (;;) {
- if (prompt)
- putchar('>');
- fflush(stdout);
-
- if (!fgets(in, sizeof(input_t), stdin))
- break;
-
- switch(in[0]) {
- case '?':
- puts(help);
- break;
- case 'a':
- if (tokenize(in+1, &tok1, &tok2, (char **) 0) != 2) {
- puts("what?");
- break;
- }
- key = dupstring(tok1);
- val = dupstring(tok2);
-
- if (!key || !val) {
- puts("out of memory");
- free((void *) key);
- free(val);
- }
-
- if (!dict_alloc_insert(d, key, val)) {
- puts("dict_alloc_insert failed");
- free((void *) key);
- free(val);
- break;
- }
- break;
- case 'd':
- if (tokenize(in+1, &tok1, (char **) 0) != 1) {
- puts("what?");
- break;
- }
- dn = dict_lookup(d, tok1);
- if (!dn) {
- puts("dict_lookup failed");
- break;
- }
- val = dnode_get(dn);
- key = dnode_getkey(dn);
- dict_delete_free(d, dn);
-
- free(val);
- free((void *) key);
- break;
- case 'f':
- dict_free(d);
- break;
- case 'l':
- case '(':
- case ')':
- if (tokenize(in+1, &tok1, (char **) 0) != 1) {
- puts("what?");
- break;
- }
- dn = 0;
- switch (in[0]) {
- case 'l':
- dn = dict_lookup(d, tok1);
- break;
- case '(':
- dn = dict_lower_bound(d, tok1);
- break;
- case ')':
- dn = dict_upper_bound(d, tok1);
- break;
- }
- if (!dn) {
- puts("lookup failed");
- break;
- }
- val = dnode_get(dn);
- puts(val);
- break;
- case 'm':
- construct(d);
- break;
- case 'k':
- dict_allow_dupes(d);
- break;
- case 'c':
- printf("%lu\n", (unsigned long) dict_count(d));
- break;
- case 't':
- for (dn = dict_first(d); dn; dn = dict_next(d, dn)) {
- printf("%s\t%s\n", (char *) dnode_getkey(dn),
- (char *) dnode_get(dn));
- }
- break;
- case 'q':
- exit(0);
- break;
- case '\0':
- break;
- case 'p':
- prompt = 1;
- break;
- case 's':
- dict_set_allocator(d, new_node, del_node, NULL);
- break;
- case '#':
- if (tokenize(in+1, &tok1, (char **) 0) != 1) {
- puts("what?");
- break;
- } else {
- int dictnum = atoi(tok1);
- if (dictnum < 0 || dictnum > 9) {
- puts("invalid number");
- break;
- }
- d = &darray[dictnum];
- }
- break;
- case 'j':
- if (tokenize(in+1, &tok1, &tok2, (char **) 0) != 2) {
- puts("what?");
- break;
- } else {
- int dict1 = atoi(tok1), dict2 = atoi(tok2);
- if (dict1 < 0 || dict1 > 9 || dict2 < 0 || dict2 > 9) {
- puts("invalid number");
- break;
- }
- dict_merge(&darray[dict1], &darray[dict2]);
- }
- break;
- default:
- putchar('?');
- putchar('\n');
- break;
- }
- }
-
- return 0;
-}
-
-#endif
+++ /dev/null
-/*
- * Dictionary Abstract Data Type
- * Copyright (C) 1997 Kaz Kylheku <kaz@ashi.footprints.net>
- *
- * Free Software License:
- *
- * All rights are reserved by the author, with the following exceptions:
- * Permission is granted to freely reproduce and distribute this software,
- * possibly in exchange for a fee, provided that this copyright notice appears
- * intact. Permission is also granted to adapt this software to produce
- * derivative works, as long as the modified versions carry this copyright
- * notice and additional notices stating that the work has been modified.
- * This source code may be translated into executable form and incorporated
- * into proprietary software; there is no requirement for such software to
- * contain a copyright notice related to this source.
- *
- * $Id: dict.h,v 1.22.2.6 2000/11/13 01:36:44 kaz Exp $
- * $Name: kazlib_1_20 $
- */
-
-#ifndef DICT_H
-#define DICT_H
-
-#include <limits.h>
-#ifdef KAZLIB_SIDEEFFECT_DEBUG
-#include "sfx.h"
-#endif
-
-/*
- * Blurb for inclusion into C++ translation units
- */
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-typedef unsigned long dictcount_t;
-#define DICTCOUNT_T_MAX ULONG_MAX
-
-/*
- * The dictionary is implemented as a red-black tree
- */
-
-typedef enum { dnode_red, dnode_black } dnode_color_t;
-
-typedef struct dnode_t {
-#if defined(DICT_IMPLEMENTATION) || !defined(KAZLIB_OPAQUE_DEBUG)
- struct dnode_t *dict_left;
- struct dnode_t *dict_right;
- struct dnode_t *dict_parent;
- dnode_color_t dict_color;
- const void *dict_key;
- void *dict_data;
-#else
- int dict_dummy;
-#endif
-} dnode_t;
-
-typedef int (*dict_comp_t)(const void *, const void *);
-typedef dnode_t *(*dnode_alloc_t)(void *);
-typedef void (*dnode_free_t)(dnode_t *, void *);
-
-typedef struct dict_t {
-#if defined(DICT_IMPLEMENTATION) || !defined(KAZLIB_OPAQUE_DEBUG)
- dnode_t dict_nilnode;
- dictcount_t dict_nodecount;
- dictcount_t dict_maxcount;
- dict_comp_t dict_compare;
- dnode_alloc_t dict_allocnode;
- dnode_free_t dict_freenode;
- void *dict_context;
- int dict_dupes;
-#else
- int dict_dummmy;
-#endif
-} dict_t;
-
-typedef void (*dnode_process_t)(dict_t *, dnode_t *, void *);
-
-typedef struct dict_load_t {
-#if defined(DICT_IMPLEMENTATION) || !defined(KAZLIB_OPAQUE_DEBUG)
- dict_t *dict_dictptr;
- dnode_t dict_nilnode;
-#else
- int dict_dummmy;
-#endif
-} dict_load_t;
-
-extern dict_t *dict_create(dictcount_t, dict_comp_t);
-extern void dict_set_allocator(dict_t *, dnode_alloc_t, dnode_free_t, void *);
-extern void dict_destroy(dict_t *);
-extern void dict_free_nodes(dict_t *);
-extern void dict_free(dict_t *);
-extern dict_t *dict_init(dict_t *, dictcount_t, dict_comp_t);
-extern void dict_init_like(dict_t *, const dict_t *);
-extern int dict_verify(dict_t *);
-extern int dict_similar(const dict_t *, const dict_t *);
-extern dnode_t *dict_lookup(dict_t *, const void *);
-extern dnode_t *dict_lower_bound(dict_t *, const void *);
-extern dnode_t *dict_upper_bound(dict_t *, const void *);
-extern void dict_insert(dict_t *, dnode_t *, const void *);
-extern dnode_t *dict_delete(dict_t *, dnode_t *);
-extern int dict_alloc_insert(dict_t *, const void *, void *);
-extern void dict_delete_free(dict_t *, dnode_t *);
-extern dnode_t *dict_first(dict_t *);
-extern dnode_t *dict_last(dict_t *);
-extern dnode_t *dict_next(dict_t *, dnode_t *);
-extern dnode_t *dict_prev(dict_t *, dnode_t *);
-extern dictcount_t dict_count(dict_t *);
-extern int dict_isempty(dict_t *);
-extern int dict_isfull(dict_t *);
-extern int dict_contains(dict_t *, dnode_t *);
-extern void dict_allow_dupes(dict_t *);
-extern int dnode_is_in_a_dict(dnode_t *);
-extern dnode_t *dnode_create(void *);
-extern dnode_t *dnode_init(dnode_t *, void *);
-extern void dnode_destroy(dnode_t *);
-extern void *dnode_get(dnode_t *);
-extern const void *dnode_getkey(dnode_t *);
-extern void dnode_put(dnode_t *, void *);
-extern void dict_process(dict_t *, void *, dnode_process_t);
-extern void dict_load_begin(dict_load_t *, dict_t *);
-extern void dict_load_next(dict_load_t *, dnode_t *, const void *);
-extern void dict_load_end(dict_load_t *);
-extern void dict_merge(dict_t *, dict_t *);
-
-#if defined(DICT_IMPLEMENTATION) || !defined(KAZLIB_OPAQUE_DEBUG)
-#ifdef KAZLIB_SIDEEFFECT_DEBUG
-#define dict_isfull(D) (SFX_CHECK(D)->dict_nodecount == (D)->dict_maxcount)
-#else
-#define dict_isfull(D) ((D)->dict_nodecount == (D)->dict_maxcount)
-#endif
-#define dict_count(D) ((D)->dict_nodecount)
-#define dict_isempty(D) ((D)->dict_nodecount == 0)
-#define dnode_get(N) ((N)->dict_data)
-#define dnode_getkey(N) ((N)->dict_key)
-#define dnode_put(N, X) ((N)->dict_data = (X))
-#endif
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
+++ /dev/null
-/*
- * dirinfo.c --- maintains the directory information table for e2fsck.
- *
- * Copyright (C) 1993 Theodore Ts'o. This file may be redistributed
- * under the terms of the GNU Public License.
- */
-
-#include "e2fsck.h"
-
-/*
- * This subroutine is called during pass1 to create a directory info
- * entry. During pass1, the passed-in parent is 0; it will get filled
- * in during pass2.
- */
-void e2fsck_add_dir_info(e2fsck_t ctx, ext2_ino_t ino, ext2_ino_t parent)
-{
- struct dir_info *dir;
- int i, j;
- ext2_ino_t num_dirs;
- errcode_t retval;
- unsigned long old_size;
-
-#if 0
- printf("add_dir_info for inode %lu...\n", ino);
-#endif
- if (!ctx->dir_info) {
- ctx->dir_info_count = 0;
- retval = ext2fs_get_num_dirs(ctx->fs, &num_dirs);
- if (retval)
- num_dirs = 1024; /* Guess */
- ctx->dir_info_size = num_dirs + 10;
- ctx->dir_info = (struct dir_info *)
- e2fsck_allocate_memory(ctx, ctx->dir_info_size
- * sizeof (struct dir_info),
- "directory map");
- }
-
- if (ctx->dir_info_count >= ctx->dir_info_size) {
- old_size = ctx->dir_info_size * sizeof(struct dir_info);
- ctx->dir_info_size += 10;
- retval = ext2fs_resize_mem(old_size, ctx->dir_info_size *
- sizeof(struct dir_info),
- &ctx->dir_info);
- if (retval) {
- ctx->dir_info_size -= 10;
- return;
- }
- }
-
- /*
- * Normally, add_dir_info is called with each inode in
- * sequential order; but once in a while (like when pass 3
- * needs to recreate the root directory or lost+found
- * directory) it is called out of order. In those cases, we
- * need to move the dir_info entries down to make room, since
- * the dir_info array needs to be sorted by inode number for
- * get_dir_info()'s sake.
- */
- if (ctx->dir_info_count &&
- ctx->dir_info[ctx->dir_info_count-1].ino >= ino) {
- for (i = ctx->dir_info_count-1; i > 0; i--)
- if (ctx->dir_info[i-1].ino < ino)
- break;
- dir = &ctx->dir_info[i];
- if (dir->ino != ino)
- for (j = ctx->dir_info_count++; j > i; j--)
- ctx->dir_info[j] = ctx->dir_info[j-1];
- } else
- dir = &ctx->dir_info[ctx->dir_info_count++];
-
- dir->ino = ino;
- dir->dotdot = parent;
- dir->parent = parent;
-}
-
-/*
- * get_dir_info() --- given an inode number, try to find the directory
- * information entry for it.
- */
-struct dir_info *e2fsck_get_dir_info(e2fsck_t ctx, ext2_ino_t ino)
-{
- int low, high, mid;
-
- low = 0;
- high = ctx->dir_info_count-1;
- if (!ctx->dir_info)
- return 0;
- if (ino == ctx->dir_info[low].ino)
- return &ctx->dir_info[low];
- if (ino == ctx->dir_info[high].ino)
- return &ctx->dir_info[high];
-
- while (low < high) {
- mid = (low+high)/2;
- if (mid == low || mid == high)
- break;
- if (ino == ctx->dir_info[mid].ino)
- return &ctx->dir_info[mid];
- if (ino < ctx->dir_info[mid].ino)
- high = mid;
- else
- low = mid;
- }
- return 0;
-}
-
-/*
- * Free the dir_info structure when it isn't needed any more.
- */
-void e2fsck_free_dir_info(e2fsck_t ctx)
-{
- if (ctx->dir_info) {
- ext2fs_free_mem(&ctx->dir_info);
- ctx->dir_info = 0;
- }
- ctx->dir_info_size = 0;
- ctx->dir_info_count = 0;
-}
-
-/*
- * Return the count of number of directories in the dir_info structure
- */
-int e2fsck_get_num_dirinfo(e2fsck_t ctx)
-{
- return ctx->dir_info_count;
-}
-
-/*
- * A simple interator function
- */
-struct dir_info *e2fsck_dir_info_iter(e2fsck_t ctx, int *control)
-{
- if (*control >= ctx->dir_info_count)
- return 0;
-
- return(ctx->dir_info + (*control)++);
-}
+++ /dev/null
-/*
- * dirinfo.c --- maintains the directory information table for e2fsck.
- *
- * Copyright (C) 1993 Theodore Ts'o. This file may be redistributed
- * under the terms of the GNU Public License.
- */
-
-#include "e2fsck.h"
-#ifdef ENABLE_HTREE
-
-/*
- * This subroutine is called during pass1 to create a directory info
- * entry. During pass1, the passed-in parent is 0; it will get filled
- * in during pass2.
- */
-void e2fsck_add_dx_dir(e2fsck_t ctx, ext2_ino_t ino, int num_blocks)
-{
- struct dx_dir_info *dir;
- int i, j;
- errcode_t retval;
- unsigned long old_size;
-
-#if 0
- printf("add_dx_dir_info for inode %lu...\n", ino);
-#endif
- if (!ctx->dx_dir_info) {
- ctx->dx_dir_info_count = 0;
- ctx->dx_dir_info_size = 100; /* Guess */
- ctx->dx_dir_info = (struct dx_dir_info *)
- e2fsck_allocate_memory(ctx, ctx->dx_dir_info_size
- * sizeof (struct dx_dir_info),
- "directory map");
- }
-
- if (ctx->dx_dir_info_count >= ctx->dx_dir_info_size) {
- old_size = ctx->dx_dir_info_size * sizeof(struct dx_dir_info);
- ctx->dx_dir_info_size += 10;
- retval = ext2fs_resize_mem(old_size, ctx->dx_dir_info_size *
- sizeof(struct dx_dir_info),
- &ctx->dx_dir_info);
- if (retval) {
- ctx->dx_dir_info_size -= 10;
- return;
- }
- }
-
- /*
- * Normally, add_dx_dir_info is called with each inode in
- * sequential order; but once in a while (like when pass 3
- * needs to recreate the root directory or lost+found
- * directory) it is called out of order. In those cases, we
- * need to move the dx_dir_info entries down to make room, since
- * the dx_dir_info array needs to be sorted by inode number for
- * get_dx_dir_info()'s sake.
- */
- if (ctx->dx_dir_info_count &&
- ctx->dx_dir_info[ctx->dx_dir_info_count-1].ino >= ino) {
- for (i = ctx->dx_dir_info_count-1; i > 0; i--)
- if (ctx->dx_dir_info[i-1].ino < ino)
- break;
- dir = &ctx->dx_dir_info[i];
- if (dir->ino != ino)
- for (j = ctx->dx_dir_info_count++; j > i; j--)
- ctx->dx_dir_info[j] = ctx->dx_dir_info[j-1];
- } else
- dir = &ctx->dx_dir_info[ctx->dx_dir_info_count++];
-
- dir->ino = ino;
- dir->numblocks = num_blocks;
- dir->hashversion = 0;
- dir->dx_block = e2fsck_allocate_memory(ctx, num_blocks
- * sizeof (struct dx_dirblock_info),
- "dx_block info array");
-
-}
-
-/*
- * get_dx_dir_info() --- given an inode number, try to find the directory
- * information entry for it.
- */
-struct dx_dir_info *e2fsck_get_dx_dir_info(e2fsck_t ctx, ext2_ino_t ino)
-{
- int low, high, mid;
-
- low = 0;
- high = ctx->dx_dir_info_count-1;
- if (!ctx->dx_dir_info)
- return 0;
- if (ino == ctx->dx_dir_info[low].ino)
- return &ctx->dx_dir_info[low];
- if (ino == ctx->dx_dir_info[high].ino)
- return &ctx->dx_dir_info[high];
-
- while (low < high) {
- mid = (low+high)/2;
- if (mid == low || mid == high)
- break;
- if (ino == ctx->dx_dir_info[mid].ino)
- return &ctx->dx_dir_info[mid];
- if (ino < ctx->dx_dir_info[mid].ino)
- high = mid;
- else
- low = mid;
- }
- return 0;
-}
-
-/*
- * Free the dx_dir_info structure when it isn't needed any more.
- */
-void e2fsck_free_dx_dir_info(e2fsck_t ctx)
-{
- int i;
- struct dx_dir_info *dir;
-
- if (ctx->dx_dir_info) {
- dir = ctx->dx_dir_info;
- for (i=0; i < ctx->dx_dir_info_count; i++) {
- if (dir->dx_block) {
- ext2fs_free_mem(&dir->dx_block);
- dir->dx_block = 0;
- }
- }
- ext2fs_free_mem(&ctx->dx_dir_info);
- ctx->dx_dir_info = 0;
- }
- ctx->dx_dir_info_size = 0;
- ctx->dx_dir_info_count = 0;
-}
-
-/*
- * Return the count of number of directories in the dx_dir_info structure
- */
-int e2fsck_get_num_dx_dirinfo(e2fsck_t ctx)
-{
- return ctx->dx_dir_info_count;
-}
-
-/*
- * A simple interator function
- */
-struct dx_dir_info *e2fsck_dx_dir_info_iter(e2fsck_t ctx, int *control)
-{
- if (*control >= ctx->dx_dir_info_count)
- return 0;
-
- return(ctx->dx_dir_info + (*control)++);
-}
-
-#endif /* ENABLE_HTREE */
+++ /dev/null
-/*
- * e2fsck.c - a consistency checker for the new extended file system.
- *
- * Copyright (C) 1993, 1994, 1995, 1996, 1997 Theodore Ts'o.
- *
- * %Begin-Header%
- * This file may be redistributed under the terms of the GNU Public
- * License.
- * %End-Header%
- */
-
-#include <errno.h>
-
-#include "e2fsck.h"
-#include "problem.h"
-
-/*
- * This function allocates an e2fsck context
- */
-errcode_t e2fsck_allocate_context(e2fsck_t *ret)
-{
- e2fsck_t context;
- errcode_t retval;
-
- retval = ext2fs_get_mem(sizeof(struct e2fsck_struct), &context);
- if (retval)
- return retval;
-
- memset(context, 0, sizeof(struct e2fsck_struct));
-
- context->process_inode_size = 256;
- context->ext_attr_ver = 2;
-
- *ret = context;
- return 0;
-}
-
-/*
- * This function resets an e2fsck context; it is called when e2fsck
- * needs to be restarted.
- */
-errcode_t e2fsck_reset_context(e2fsck_t ctx)
-{
- ctx->flags = 0;
- ctx->lost_and_found = 0;
- ctx->bad_lost_and_found = 0;
- if (ctx->inode_used_map) {
- ext2fs_free_inode_bitmap(ctx->inode_used_map);
- ctx->inode_used_map = 0;
- }
- if (ctx->inode_dir_map) {
- ext2fs_free_inode_bitmap(ctx->inode_dir_map);
- ctx->inode_dir_map = 0;
- }
- if (ctx->inode_reg_map) {
- ext2fs_free_inode_bitmap(ctx->inode_reg_map);
- ctx->inode_reg_map = 0;
- }
- if (ctx->block_found_map) {
- ext2fs_free_block_bitmap(ctx->block_found_map);
- ctx->block_found_map = 0;
- }
- if (ctx->inode_link_info) {
- ext2fs_free_icount(ctx->inode_link_info);
- ctx->inode_link_info = 0;
- }
- if (ctx->journal_io) {
- if (ctx->fs && ctx->fs->io != ctx->journal_io)
- io_channel_close(ctx->journal_io);
- ctx->journal_io = 0;
- }
- if (ctx->fs && ctx->fs->dblist) {
- ext2fs_free_dblist(ctx->fs->dblist);
- ctx->fs->dblist = 0;
- }
- e2fsck_free_dir_info(ctx);
-#ifdef ENABLE_HTREE
- e2fsck_free_dx_dir_info(ctx);
-#endif
- if (ctx->refcount) {
- ea_refcount_free(ctx->refcount);
- ctx->refcount = 0;
- }
- if (ctx->refcount_extra) {
- ea_refcount_free(ctx->refcount_extra);
- ctx->refcount_extra = 0;
- }
- if (ctx->block_dup_map) {
- ext2fs_free_block_bitmap(ctx->block_dup_map);
- ctx->block_dup_map = 0;
- }
- if (ctx->block_ea_map) {
- ext2fs_free_block_bitmap(ctx->block_ea_map);
- ctx->block_ea_map = 0;
- }
- if (ctx->inode_bb_map) {
- ext2fs_free_inode_bitmap(ctx->inode_bb_map);
- ctx->inode_bb_map = 0;
- }
- if (ctx->inode_bad_map) {
- ext2fs_free_inode_bitmap(ctx->inode_bad_map);
- ctx->inode_bad_map = 0;
- }
- if (ctx->inode_imagic_map) {
- ext2fs_free_inode_bitmap(ctx->inode_imagic_map);
- ctx->inode_imagic_map = 0;
- }
- if (ctx->dirs_to_hash) {
- ext2fs_u32_list_free(ctx->dirs_to_hash);
- ctx->dirs_to_hash = 0;
- }
-
- /*
- * Clear the array of invalid meta-data flags
- */
- if (ctx->invalid_inode_bitmap_flag) {
- ext2fs_free_mem(&ctx->invalid_inode_bitmap_flag);
- ctx->invalid_inode_bitmap_flag = 0;
- }
- if (ctx->invalid_block_bitmap_flag) {
- ext2fs_free_mem(&ctx->invalid_block_bitmap_flag);
- ctx->invalid_block_bitmap_flag = 0;
- }
- if (ctx->invalid_inode_table_flag) {
- ext2fs_free_mem(&ctx->invalid_inode_table_flag);
- ctx->invalid_inode_table_flag = 0;
- }
-
- /* Clear statistic counters */
- ctx->fs_directory_count = 0;
- ctx->fs_regular_count = 0;
- ctx->fs_blockdev_count = 0;
- ctx->fs_chardev_count = 0;
- ctx->fs_links_count = 0;
- ctx->fs_symlinks_count = 0;
- ctx->fs_fast_symlinks_count = 0;
- ctx->fs_fifo_count = 0;
- ctx->fs_total_count = 0;
- ctx->fs_badblocks_count = 0;
- ctx->fs_sockets_count = 0;
- ctx->fs_ind_count = 0;
- ctx->fs_dind_count = 0;
- ctx->fs_tind_count = 0;
- ctx->fs_fragmented = 0;
- ctx->large_files = 0;
-
- /* Reset the superblock to the user's requested value */
- ctx->superblock = ctx->use_superblock;
-
- return 0;
-}
-
-void e2fsck_free_context(e2fsck_t ctx)
-{
- if (!ctx)
- return;
-
- e2fsck_reset_context(ctx);
- if (ctx->blkid)
- blkid_put_cache(ctx->blkid);
-
- ext2fs_free_mem(&ctx);
-}
-
-/*
- * This function runs through the e2fsck passes and calls them all,
- * returning restart, abort, or cancel as necessary...
- */
-typedef void (*pass_t)(e2fsck_t ctx);
-
-pass_t e2fsck_passes[] = {
- e2fsck_pass1, e2fsck_pass2, e2fsck_pass3, e2fsck_pass4,
- e2fsck_pass5, 0 };
-
-#define E2F_FLAG_RUN_RETURN (E2F_FLAG_SIGNAL_MASK|E2F_FLAG_RESTART)
-
-int e2fsck_run(e2fsck_t ctx)
-{
- int i;
- pass_t e2fsck_pass;
-
-#ifdef HAVE_SETJMP_H
- if (setjmp(ctx->abort_loc)) {
- ctx->flags &= ~E2F_FLAG_SETJMP_OK;
- return (ctx->flags & E2F_FLAG_RUN_RETURN);
- }
- ctx->flags |= E2F_FLAG_SETJMP_OK;
-#endif
-
- for (i=0; (e2fsck_pass = e2fsck_passes[i]); i++) {
- if (ctx->flags & E2F_FLAG_RUN_RETURN)
- break;
- e2fsck_pass(ctx);
- if (ctx->progress)
- (void) (ctx->progress)(ctx, 0, 0, 0);
- }
- ctx->flags &= ~E2F_FLAG_SETJMP_OK;
-
- if (ctx->flags & E2F_FLAG_RUN_RETURN)
- return (ctx->flags & E2F_FLAG_RUN_RETURN);
- return 0;
-}
+++ /dev/null
-/*
- * e2fsck.h
- *
- * Copyright (C) 1993, 1994 Theodore Ts'o. This file may be
- * redistributed under the terms of the GNU Public License.
- *
- */
-
-#include <stdio.h>
-#include <string.h>
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-#include <stdlib.h>
-#include <time.h>
-#ifdef HAVE_SYS_TYPES_H
-#include <sys/types.h>
-#endif
-#ifdef HAVE_SYS_TIME_H
-#include <sys/time.h>
-#endif
-#ifdef HAVE_SETJMP_H
-#include <setjmp.h>
-#endif
-
-#if EXT2_FLAT_INCLUDES
-#include "ext2_fs.h"
-#include "ext2fs.h"
-#include "blkid.h"
-#else
-#include "ext2fs/ext2_fs.h"
-#include "ext2fs/ext2fs.h"
-#include "blkid/blkid.h"
-#endif
-
-/*
- * Exit codes used by fsck-type programs
- */
-#define FSCK_OK 0 /* No errors */
-#define FSCK_NONDESTRUCT 1 /* File system errors corrected */
-#define FSCK_REBOOT 2 /* System should be rebooted */
-#define FSCK_UNCORRECTED 4 /* File system errors left uncorrected */
-#define FSCK_ERROR 8 /* Operational error */
-#define FSCK_USAGE 16 /* Usage or syntax error */
-#define FSCK_CANCELED 32 /* Aborted with a signal or ^C */
-#define FSCK_LIBRARY 128 /* Shared library error */
-
-/*
- * The last ext2fs revision level that this version of e2fsck is able to
- * support
- */
-#define E2FSCK_CURRENT_REV 1
-
-/*
- * The directory information structure; stores directory information
- * collected in earlier passes, to avoid disk i/o in fetching the
- * directory information.
- */
-struct dir_info {
- ext2_ino_t ino; /* Inode number */
- ext2_ino_t dotdot; /* Parent according to '..' */
- ext2_ino_t parent; /* Parent according to treewalk */
-};
-
-
-/*
- * The indexed directory information structure; stores information for
- * directories which contain a hash tree index.
- */
-struct dx_dir_info {
- ext2_ino_t ino; /* Inode number */
- int numblocks; /* number of blocks */
- int hashversion;
- short depth; /* depth of tree */
- struct dx_dirblock_info *dx_block; /* Array of size numblocks */
-};
-
-#define DX_DIRBLOCK_ROOT 1
-#define DX_DIRBLOCK_LEAF 2
-#define DX_DIRBLOCK_NODE 3
-#define DX_DIRBLOCK_CORRUPT 4
-#define DX_DIRBLOCK_CLEARED 8
-
-struct dx_dirblock_info {
- int type;
- blk_t phys;
- int flags;
- blk_t parent;
- ext2_dirhash_t min_hash;
- ext2_dirhash_t max_hash;
- ext2_dirhash_t node_min_hash;
- ext2_dirhash_t node_max_hash;
-};
-
-#define DX_FLAG_REFERENCED 1
-#define DX_FLAG_DUP_REF 2
-#define DX_FLAG_FIRST 4
-#define DX_FLAG_LAST 8
-
-#ifdef RESOURCE_TRACK
-/*
- * This structure is used for keeping track of how much resources have
- * been used for a particular pass of e2fsck.
- */
-struct resource_track {
- struct timeval time_start;
- struct timeval user_start;
- struct timeval system_start;
- void *brk_start;
-};
-#endif
-
-/*
- * E2fsck options
- */
-#define E2F_OPT_READONLY 0x0001
-#define E2F_OPT_PREEN 0x0002
-#define E2F_OPT_YES 0x0004
-#define E2F_OPT_NO 0x0008
-#define E2F_OPT_TIME 0x0010
-#define E2F_OPT_TIME2 0x0020
-#define E2F_OPT_CHECKBLOCKS 0x0040
-#define E2F_OPT_DEBUG 0x0080
-#define E2F_OPT_FORCE 0x0100
-#define E2F_OPT_WRITECHECK 0x0200
-#define E2F_OPT_COMPRESS_DIRS 0x0400
-
-/*
- * E2fsck flags
- */
-#define E2F_FLAG_ABORT 0x0001 /* Abort signaled */
-#define E2F_FLAG_CANCEL 0x0002 /* Cancel signaled */
-#define E2F_FLAG_SIGNAL_MASK 0x0003
-#define E2F_FLAG_RESTART 0x0004 /* Restart signaled */
-
-#define E2F_FLAG_SETJMP_OK 0x0010 /* Setjmp valid for abort */
-
-#define E2F_FLAG_PROG_BAR 0x0020 /* Progress bar on screen */
-#define E2F_FLAG_PROG_SUPPRESS 0x0040 /* Progress suspended */
-#define E2F_FLAG_JOURNAL_INODE 0x0080 /* Create a new ext3 journal inode */
-#define E2F_FLAG_SB_SPECIFIED 0x0100 /* The superblock was explicitly
- * specified by the user */
-#define E2F_FLAG_RESTARTED 0x0200 /* E2fsck has been restarted */
-#define E2F_FLAG_RESIZE_INODE 0x0400 /* Request to recreate resize inode */
-
-/*
- * Defines for indicating the e2fsck pass number
- */
-#define E2F_PASS_1 1
-#define E2F_PASS_2 2
-#define E2F_PASS_3 3
-#define E2F_PASS_4 4
-#define E2F_PASS_5 5
-#define E2F_PASS_1B 6
-
-/*
- * Define the extended attribute refcount structure
- */
-typedef struct ea_refcount *ext2_refcount_t;
-
-/*
- * This is the global e2fsck structure.
- */
-typedef struct e2fsck_struct *e2fsck_t;
-
-struct e2fsck_struct {
- ext2_filsys fs;
- const char *program_name;
- char *filesystem_name;
- char *device_name;
- char *io_options;
- int flags; /* E2fsck internal flags */
- int options;
- blk_t use_superblock; /* sb requested by user */
- blk_t superblock; /* sb used to open fs */
- int blocksize; /* blocksize */
- blk_t num_blocks; /* Total number of blocks */
- int mount_flags;
- blkid_cache blkid; /* blkid cache */
-
-#ifdef HAVE_SETJMP_H
- jmp_buf abort_loc;
-#endif
- unsigned long abort_code;
-
- int (*progress)(e2fsck_t ctx, int pass, unsigned long cur,
- unsigned long max);
-
- ext2fs_inode_bitmap inode_used_map; /* Inodes which are in use */
- ext2fs_inode_bitmap inode_bad_map; /* Inodes which are bad somehow */
- ext2fs_inode_bitmap inode_dir_map; /* Inodes which are directories */
- ext2fs_inode_bitmap inode_bb_map; /* Inodes which are in bad blocks */
- ext2fs_inode_bitmap inode_imagic_map; /* AFS inodes */
- ext2fs_inode_bitmap inode_reg_map; /* Inodes which are regular files*/
-
- ext2fs_block_bitmap block_found_map; /* Blocks which are in use */
- ext2fs_block_bitmap block_dup_map; /* Blks referenced more than once */
- ext2fs_block_bitmap block_ea_map; /* Blocks which are used by EA's */
-
- /*
- * Inode count arrays
- */
- ext2_icount_t inode_count;
- ext2_icount_t inode_link_info;
-
- ext2_refcount_t refcount;
- ext2_refcount_t refcount_extra;
-
- /*
- * Array of flags indicating whether an inode bitmap, block
- * bitmap, or inode table is invalid
- */
- int *invalid_inode_bitmap_flag;
- int *invalid_block_bitmap_flag;
- int *invalid_inode_table_flag;
- int invalid_bitmaps; /* There are invalid bitmaps/itable */
-
- /*
- * Block buffer
- */
- char *block_buf;
-
- /*
- * For pass1_check_directory and pass1_get_blocks
- */
- ext2_ino_t stashed_ino;
- struct ext2_inode *stashed_inode;
-
- /*
- * Location of the lost and found directory
- */
- ext2_ino_t lost_and_found;
- int bad_lost_and_found;
-
- /*
- * Directory information
- */
- int dir_info_count;
- int dir_info_size;
- struct dir_info *dir_info;
-
- /*
- * Indexed directory information
- */
- int dx_dir_info_count;
- int dx_dir_info_size;
- struct dx_dir_info *dx_dir_info;
-
- /*
- * Directories to hash
- */
- ext2_u32_list dirs_to_hash;
-
- /*
- * Tuning parameters
- */
- int process_inode_size;
- int inode_buffer_blocks;
-
- /*
- * ext3 journal support
- */
- io_channel journal_io;
- char *journal_name;
-
-#ifdef RESOURCE_TRACK
- /*
- * For timing purposes
- */
- struct resource_track global_rtrack;
-#endif
-
- /*
- * How we display the progress update (for unix)
- */
- int progress_fd;
- int progress_pos;
- int progress_last_percent;
- unsigned int progress_last_time;
- int interactive; /* Are we connected directly to a tty? */
- char start_meta[2], stop_meta[2];
-
- /* File counts */
- int fs_directory_count;
- int fs_regular_count;
- int fs_blockdev_count;
- int fs_chardev_count;
- int fs_links_count;
- int fs_symlinks_count;
- int fs_fast_symlinks_count;
- int fs_fifo_count;
- int fs_total_count;
- int fs_badblocks_count;
- int fs_sockets_count;
- int fs_ind_count;
- int fs_dind_count;
- int fs_tind_count;
- int fs_fragmented;
- int large_files;
- int fs_ext_attr_inodes;
- int fs_ext_attr_blocks;
-
- int ext_attr_ver;
-
- /*
- * For the use of callers of the e2fsck functions; not used by
- * e2fsck functions themselves.
- */
- void *priv_data;
-};
-
-/* Used by the region allocation code */
-typedef __u32 region_addr_t;
-typedef struct region_struct *region_t;
-
-#ifndef HAVE_STRNLEN
-#define strnlen(str, x) e2fsck_strnlen((str),(x))
-extern int e2fsck_strnlen(const char * s, int count);
-#endif
-
-/*
- * Procedure declarations
- */
-
-extern void e2fsck_pass1(e2fsck_t ctx);
-extern void e2fsck_pass1_dupblocks(e2fsck_t ctx, char *block_buf);
-extern void e2fsck_pass2(e2fsck_t ctx);
-extern void e2fsck_pass3(e2fsck_t ctx);
-extern void e2fsck_pass4(e2fsck_t ctx);
-extern void e2fsck_pass5(e2fsck_t ctx);
-
-/* e2fsck.c */
-extern errcode_t e2fsck_allocate_context(e2fsck_t *ret);
-extern errcode_t e2fsck_reset_context(e2fsck_t ctx);
-extern void e2fsck_free_context(e2fsck_t ctx);
-extern int e2fsck_run(e2fsck_t ctx);
-
-
-/* badblock.c */
-extern void read_bad_blocks_file(e2fsck_t ctx, const char *bad_blocks_file,
- int replace_bad_blocks);
-
-/* dirinfo.c */
-extern void e2fsck_add_dir_info(e2fsck_t ctx, ext2_ino_t ino, ext2_ino_t parent);
-extern struct dir_info *e2fsck_get_dir_info(e2fsck_t ctx, ext2_ino_t ino);
-extern void e2fsck_free_dir_info(e2fsck_t ctx);
-extern int e2fsck_get_num_dirinfo(e2fsck_t ctx);
-extern struct dir_info *e2fsck_dir_info_iter(e2fsck_t ctx, int *control);
-
-/* dx_dirinfo.c */
-extern void e2fsck_add_dx_dir(e2fsck_t ctx, ext2_ino_t ino, int num_blocks);
-extern struct dx_dir_info *e2fsck_get_dx_dir_info(e2fsck_t ctx, ext2_ino_t ino);
-extern void e2fsck_free_dx_dir_info(e2fsck_t ctx);
-extern int e2fsck_get_num_dx_dirinfo(e2fsck_t ctx);
-extern struct dx_dir_info *e2fsck_dx_dir_info_iter(e2fsck_t ctx, int *control);
-
-/* ea_refcount.c */
-extern errcode_t ea_refcount_create(int size, ext2_refcount_t *ret);
-extern void ea_refcount_free(ext2_refcount_t refcount);
-extern errcode_t ea_refcount_fetch(ext2_refcount_t refcount, blk_t blk,
- int *ret);
-extern errcode_t ea_refcount_increment(ext2_refcount_t refcount,
- blk_t blk, int *ret);
-extern errcode_t ea_refcount_decrement(ext2_refcount_t refcount,
- blk_t blk, int *ret);
-extern errcode_t ea_refcount_store(ext2_refcount_t refcount,
- blk_t blk, int count);
-extern blk_t ext2fs_get_refcount_size(ext2_refcount_t refcount);
-extern void ea_refcount_intr_begin(ext2_refcount_t refcount);
-extern blk_t ea_refcount_intr_next(ext2_refcount_t refcount, int *ret);
-
-/* ehandler.c */
-extern const char *ehandler_operation(const char *op);
-extern void ehandler_init(io_channel channel);
-
-/* journal.c */
-extern int e2fsck_check_ext3_journal(e2fsck_t ctx);
-extern int e2fsck_run_ext3_journal(e2fsck_t ctx);
-extern void e2fsck_move_ext3_journal(e2fsck_t ctx);
-
-/* pass1.c */
-extern void e2fsck_use_inode_shortcuts(e2fsck_t ctx, int bool);
-extern int e2fsck_pass1_check_device_inode(ext2_filsys fs,
- struct ext2_inode *inode);
-extern int e2fsck_pass1_check_symlink(ext2_filsys fs,
- struct ext2_inode *inode, char *buf);
-
-/* pass2.c */
-extern int e2fsck_process_bad_inode(e2fsck_t ctx, ext2_ino_t dir,
- ext2_ino_t ino, char *buf);
-
-/* pass3.c */
-extern int e2fsck_reconnect_file(e2fsck_t ctx, ext2_ino_t inode);
-extern errcode_t e2fsck_expand_directory(e2fsck_t ctx, ext2_ino_t dir,
- int num, int gauranteed_size);
-extern ext2_ino_t e2fsck_get_lost_and_found(e2fsck_t ctx, int fix);
-extern errcode_t e2fsck_adjust_inode_count(e2fsck_t ctx, ext2_ino_t ino,
- int adj);
-
-
-/* region.c */
-extern region_t region_create(region_addr_t min, region_addr_t max);
-extern void region_free(region_t region);
-extern int region_allocate(region_t region, region_addr_t start, int n);
-
-/* rehash.c */
-errcode_t e2fsck_rehash_dir(e2fsck_t ctx, ext2_ino_t ino);
-void e2fsck_rehash_directories(e2fsck_t ctx);
-
-/* super.c */
-void check_super_block(e2fsck_t ctx);
-errcode_t e2fsck_get_device_size(e2fsck_t ctx);
-
-/* swapfs.c */
-void swap_filesys(e2fsck_t ctx);
-
-/* util.c */
-extern void *e2fsck_allocate_memory(e2fsck_t ctx, unsigned int size,
- const char *description);
-extern int ask(e2fsck_t ctx, const char * string, int def);
-extern int ask_yn(const char * string, int def);
-extern void e2fsck_read_bitmaps(e2fsck_t ctx);
-extern void e2fsck_write_bitmaps(e2fsck_t ctx);
-extern void preenhalt(e2fsck_t ctx);
-extern char *string_copy(e2fsck_t ctx, const char *str, int len);
-#ifdef RESOURCE_TRACK
-extern void print_resource_track(const char *desc,
- struct resource_track *track);
-extern void init_resource_track(struct resource_track *track);
-#endif
-extern int inode_has_valid_blocks(struct ext2_inode *inode);
-extern void e2fsck_read_inode(e2fsck_t ctx, unsigned long ino,
- struct ext2_inode * inode, const char * proc);
-extern void e2fsck_write_inode(e2fsck_t ctx, unsigned long ino,
- struct ext2_inode * inode, const char * proc);
-#ifdef MTRACE
-extern void mtrace_print(char *mesg);
-#endif
-extern blk_t get_backup_sb(e2fsck_t ctx, ext2_filsys fs,
- const char *name, io_manager manager);
-extern int ext2_file_type(unsigned int mode);
-
-/* unix.c */
-extern void e2fsck_clear_progbar(e2fsck_t ctx);
-extern int e2fsck_simple_progress(e2fsck_t ctx, const char *label,
- float percent, unsigned int dpynum);
+++ /dev/null
-/*
- * ea_refcount.c
- *
- * Copyright (C) 2001 Theodore Ts'o. This file may be
- * redistributed under the terms of the GNU Public License.
- */
-
-#if HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-#include <string.h>
-#include <stdio.h>
-
-#include "e2fsck.h"
-
-/*
- * The strategy we use for keeping track of EA refcounts is as
- * follows. We keep a sorted array of first EA blocks and its
- * reference counts. Once the refcount has dropped to zero, it is
- * removed from the array to save memory space. Once the EA block is
- * checked, its bit is set in the block_ea_map bitmap.
- */
-struct ea_refcount_el {
- blk_t ea_blk;
- int ea_count;
-};
-
-struct ea_refcount {
- blk_t count;
- blk_t size;
- blk_t cursor;
- struct ea_refcount_el *list;
-};
-
-void ea_refcount_free(ext2_refcount_t refcount)
-{
- if (!refcount)
- return;
-
- if (refcount->list)
- ext2fs_free_mem(&refcount->list);
- ext2fs_free_mem(&refcount);
-}
-
-errcode_t ea_refcount_create(int size, ext2_refcount_t *ret)
-{
- ext2_refcount_t refcount;
- errcode_t retval;
- size_t bytes;
-
- retval = ext2fs_get_mem(sizeof(struct ea_refcount), &refcount);
- if (retval)
- return retval;
- memset(refcount, 0, sizeof(struct ea_refcount));
-
- if (!size)
- size = 500;
- refcount->size = size;
- bytes = (size_t) (size * sizeof(struct ea_refcount_el));
-#ifdef DEBUG
- printf("Refcount allocated %d entries, %d bytes.\n",
- refcount->size, bytes);
-#endif
- retval = ext2fs_get_mem(bytes, &refcount->list);
- if (retval)
- goto errout;
- memset(refcount->list, 0, bytes);
-
- refcount->count = 0;
- refcount->cursor = 0;
-
- *ret = refcount;
- return 0;
-
-errout:
- ea_refcount_free(refcount);
- return(retval);
-}
-
-/*
- * collapse_refcount() --- go through the refcount array, and get rid
- * of any count == zero entries
- */
-static void refcount_collapse(ext2_refcount_t refcount)
-{
- unsigned int i, j;
- struct ea_refcount_el *list;
-
- list = refcount->list;
- for (i = 0, j = 0; i < refcount->count; i++) {
- if (list[i].ea_count) {
- if (i != j)
- list[j] = list[i];
- j++;
- }
- }
-#if defined(DEBUG) || defined(TEST_PROGRAM)
- printf("Refcount_collapse: size was %d, now %d\n",
- refcount->count, j);
-#endif
- refcount->count = j;
-}
-
-
-/*
- * insert_refcount_el() --- Insert a new entry into the sorted list at a
- * specified position.
- */
-static struct ea_refcount_el *insert_refcount_el(ext2_refcount_t refcount,
- blk_t blk, int pos)
-{
- struct ea_refcount_el *el;
- errcode_t retval;
- blk_t new_size = 0;
- int num;
-
- if (refcount->count >= refcount->size) {
- new_size = refcount->size + 100;
-#ifdef DEBUG
- printf("Reallocating refcount %d entries...\n", new_size);
-#endif
- retval = ext2fs_resize_mem((size_t) refcount->size *
- sizeof(struct ea_refcount_el),
- (size_t) new_size *
- sizeof(struct ea_refcount_el),
- &refcount->list);
- if (retval)
- return 0;
- refcount->size = new_size;
- }
- num = (int) refcount->count - pos;
- if (num < 0)
- return 0; /* should never happen */
- if (num) {
- memmove(&refcount->list[pos+1], &refcount->list[pos],
- sizeof(struct ea_refcount_el) * num);
- }
- refcount->count++;
- el = &refcount->list[pos];
- el->ea_count = 0;
- el->ea_blk = blk;
- return el;
-}
-
-
-/*
- * get_refcount_el() --- given an block number, try to find refcount
- * information in the sorted list. If the create flag is set,
- * and we can't find an entry, create one in the sorted list.
- */
-static struct ea_refcount_el *get_refcount_el(ext2_refcount_t refcount,
- blk_t blk, int create)
-{
- float range;
- int low, high, mid;
- blk_t lowval, highval;
-
- if (!refcount || !refcount->list)
- return 0;
-retry:
- low = 0;
- high = (int) refcount->count-1;
- if (create && ((refcount->count == 0) ||
- (blk > refcount->list[high].ea_blk))) {
- if (refcount->count >= refcount->size)
- refcount_collapse(refcount);
-
- return insert_refcount_el(refcount, blk,
- (unsigned) refcount->count);
- }
- if (refcount->count == 0)
- return 0;
-
- if (refcount->cursor >= refcount->count)
- refcount->cursor = 0;
- if (blk == refcount->list[refcount->cursor].ea_blk)
- return &refcount->list[refcount->cursor++];
-#ifdef DEBUG
- printf("Non-cursor get_refcount_el: %u\n", blk);
-#endif
- while (low <= high) {
-#if 0
- mid = (low+high)/2;
-#else
- if (low == high)
- mid = low;
- else {
- /* Interpolate for efficiency */
- lowval = refcount->list[low].ea_blk;
- highval = refcount->list[high].ea_blk;
-
- if (blk < lowval)
- range = 0;
- else if (blk > highval)
- range = 1;
- else
- range = ((float) (blk - lowval)) /
- (highval - lowval);
- mid = low + ((int) (range * (high-low)));
- }
-#endif
- if (blk == refcount->list[mid].ea_blk) {
- refcount->cursor = mid+1;
- return &refcount->list[mid];
- }
- if (blk < refcount->list[mid].ea_blk)
- high = mid-1;
- else
- low = mid+1;
- }
- /*
- * If we need to create a new entry, it should be right at
- * low (where high will be left at low-1).
- */
- if (create) {
- if (refcount->count >= refcount->size) {
- refcount_collapse(refcount);
- if (refcount->count < refcount->size)
- goto retry;
- }
- return insert_refcount_el(refcount, blk, low);
- }
- return 0;
-}
-
-errcode_t ea_refcount_fetch(ext2_refcount_t refcount, blk_t blk,
- int *ret)
-{
- struct ea_refcount_el *el;
-
- el = get_refcount_el(refcount, blk, 0);
- if (!el) {
- *ret = 0;
- return 0;
- }
- *ret = el->ea_count;
- return 0;
-}
-
-errcode_t ea_refcount_increment(ext2_refcount_t refcount, blk_t blk, int *ret)
-{
- struct ea_refcount_el *el;
-
- el = get_refcount_el(refcount, blk, 1);
- if (!el)
- return EXT2_ET_NO_MEMORY;
- el->ea_count++;
-
- if (ret)
- *ret = el->ea_count;
- return 0;
-}
-
-errcode_t ea_refcount_decrement(ext2_refcount_t refcount, blk_t blk, int *ret)
-{
- struct ea_refcount_el *el;
-
- el = get_refcount_el(refcount, blk, 0);
- if (!el || el->ea_count == 0)
- return EXT2_ET_INVALID_ARGUMENT;
-
- el->ea_count--;
-
- if (ret)
- *ret = el->ea_count;
- return 0;
-}
-
-errcode_t ea_refcount_store(ext2_refcount_t refcount, blk_t blk, int count)
-{
- struct ea_refcount_el *el;
-
- /*
- * Get the refcount element
- */
- el = get_refcount_el(refcount, blk, count ? 1 : 0);
- if (!el)
- return count ? EXT2_ET_NO_MEMORY : 0;
- el->ea_count = count;
- return 0;
-}
-
-blk_t ext2fs_get_refcount_size(ext2_refcount_t refcount)
-{
- if (!refcount)
- return 0;
-
- return refcount->size;
-}
-
-void ea_refcount_intr_begin(ext2_refcount_t refcount)
-{
- refcount->cursor = 0;
-}
-
-
-blk_t ea_refcount_intr_next(ext2_refcount_t refcount,
- int *ret)
-{
- struct ea_refcount_el *list;
-
- while (1) {
- if (refcount->cursor >= refcount->count)
- return 0;
- list = refcount->list;
- if (list[refcount->cursor].ea_count) {
- if (ret)
- *ret = list[refcount->cursor].ea_count;
- return list[refcount->cursor++].ea_blk;
- }
- refcount->cursor++;
- }
-}
-
-
-#ifdef TEST_PROGRAM
-
-errcode_t ea_refcount_validate(ext2_refcount_t refcount, FILE *out)
-{
- errcode_t ret = 0;
- int i;
- const char *bad = "bad refcount";
-
- if (refcount->count > refcount->size) {
- fprintf(out, "%s: count > size\n", bad);
- return EXT2_ET_INVALID_ARGUMENT;
- }
- for (i=1; i < refcount->count; i++) {
- if (refcount->list[i-1].ea_blk >= refcount->list[i].ea_blk) {
- fprintf(out, "%s: list[%d].blk=%u, list[%d].blk=%u\n",
- bad, i-1, refcount->list[i-1].ea_blk,
- i, refcount->list[i].ea_blk);
- ret = EXT2_ET_INVALID_ARGUMENT;
- }
- }
- return ret;
-}
-
-#define BCODE_END 0
-#define BCODE_CREATE 1
-#define BCODE_FREE 2
-#define BCODE_STORE 3
-#define BCODE_INCR 4
-#define BCODE_DECR 5
-#define BCODE_FETCH 6
-#define BCODE_VALIDATE 7
-#define BCODE_LIST 8
-#define BCODE_COLLAPSE 9
-
-int bcode_program[] = {
- BCODE_CREATE, 5,
- BCODE_STORE, 3, 3,
- BCODE_STORE, 4, 4,
- BCODE_STORE, 1, 1,
- BCODE_STORE, 8, 8,
- BCODE_STORE, 2, 2,
- BCODE_STORE, 4, 0,
- BCODE_STORE, 2, 0,
- BCODE_STORE, 6, 6,
- BCODE_VALIDATE,
- BCODE_STORE, 4, 4,
- BCODE_STORE, 2, 2,
- BCODE_FETCH, 1,
- BCODE_FETCH, 2,
- BCODE_INCR, 3,
- BCODE_INCR, 3,
- BCODE_DECR, 4,
- BCODE_STORE, 4, 4,
- BCODE_VALIDATE,
- BCODE_STORE, 20, 20,
- BCODE_STORE, 40, 40,
- BCODE_STORE, 30, 30,
- BCODE_STORE, 10, 10,
- BCODE_DECR, 30,
- BCODE_FETCH, 30,
- BCODE_DECR, 2,
- BCODE_DECR, 2,
- BCODE_COLLAPSE,
- BCODE_LIST,
- BCODE_VALIDATE,
- BCODE_FREE,
- BCODE_END
-};
-
-int main(int argc, char **argv)
-{
- int i = 0;
- ext2_refcount_t refcount;
- int size, arg;
- blk_t blk;
- errcode_t retval;
-
- while (1) {
- switch (bcode_program[i++]) {
- case BCODE_END:
- exit(0);
- case BCODE_CREATE:
- size = bcode_program[i++];
- retval = ea_refcount_create(size, &refcount);
- if (retval) {
- com_err("ea_refcount_create",
- retval, "");
- exit(1);
- } else
- printf("Creating refcount with size %d\n",
- size);
- break;
- case BCODE_FREE:
- ea_refcount_free(refcount);
- refcount = 0;
- printf("Freeing refcount\n");
- break;
- case BCODE_STORE:
- blk = (blk_t) bcode_program[i++];
- arg = bcode_program[i++];
- retval = ea_refcount_store(refcount, blk, arg);
- printf("Storing blk %u with value %d\n", blk, arg);
- if (retval)
- com_err("ea_refcount_store", retval, "");
- break;
- case BCODE_FETCH:
- blk = (blk_t) bcode_program[i++];
- retval = ea_refcount_fetch(refcount, blk, &arg);
- if (retval)
- com_err("ea_refcount_fetch", retval, "");
- else
- printf("bcode_fetch(%u) returns %d\n",
- blk, arg);
- break;
- case BCODE_INCR:
- blk = (blk_t) bcode_program[i++];
- retval = ea_refcount_increment(refcount, blk,
- &arg);
- if (retval)
- com_err("ea_refcount_increment", retval,
- "");
- else
- printf("bcode_increment(%u) returns %d\n",
- blk, arg);
- break;
- case BCODE_DECR:
- blk = (blk_t) bcode_program[i++];
- retval = ea_refcount_decrement(refcount, blk,
- &arg);
- if (retval)
- com_err("ea_refcount_decrement", retval,
- "while decrementing blk %u", blk);
- else
- printf("bcode_decrement(%u) returns %d\n",
- blk, arg);
- break;
- case BCODE_VALIDATE:
- retval = ea_refcount_validate(refcount, stderr);
- if (retval)
- com_err("ea_refcount_validate",
- retval, "");
- else
- printf("Refcount validation OK.\n");
- break;
- case BCODE_LIST:
- ea_refcount_intr_begin(refcount);
- while (1) {
- blk = ea_refcount_intr_next(refcount,
- &arg);
- if (!blk)
- break;
- printf("\tblk=%u, count=%d\n", blk,
- arg);
- }
- break;
- case BCODE_COLLAPSE:
- refcount_collapse(refcount);
- break;
- }
-
- }
-}
-
-#endif
+++ /dev/null
-/*
- * ehandler.c --- handle bad block errors which come up during the
- * course of an e2fsck session.
- *
- * Copyright (C) 1994 Theodore Ts'o. This file may be redistributed
- * under the terms of the GNU Public License.
- */
-
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-#include <ctype.h>
-#include <termios.h>
-
-#include "e2fsck.h"
-
-#include <sys/time.h>
-#include <sys/resource.h>
-
-static const char *operation;
-
-static errcode_t e2fsck_handle_read_error(io_channel channel,
- unsigned long block,
- int count,
- void *data,
- size_t size EXT2FS_ATTR((unused)),
- int actual EXT2FS_ATTR((unused)),
- errcode_t error)
-{
- int i;
- char *p;
- ext2_filsys fs = (ext2_filsys) channel->app_data;
- e2fsck_t ctx;
-
- ctx = (e2fsck_t) fs->priv_data;
-
- /*
- * If more than one block was read, try reading each block
- * separately. We could use the actual bytes read to figure
- * out where to start, but we don't bother.
- */
- if (count > 1) {
- p = (char *) data;
- for (i=0; i < count; i++, p += channel->block_size, block++) {
- error = io_channel_read_blk(channel, block,
- 1, p);
- if (error)
- return error;
- }
- return 0;
- }
- if (operation)
- printf(_("Error reading block %lu (%s) while %s. "), block,
- error_message(error), operation);
- else
- printf(_("Error reading block %lu (%s). "), block,
- error_message(error));
- preenhalt(ctx);
- if (ask(ctx, _("Ignore error"), 1)) {
- if (ask(ctx, _("Force rewrite"), 1))
- io_channel_write_blk(channel, block, 1, data);
- return 0;
- }
-
- return error;
-}
-
-static errcode_t e2fsck_handle_write_error(io_channel channel,
- unsigned long block,
- int count,
- const void *data,
- size_t size EXT2FS_ATTR((unused)),
- int actual EXT2FS_ATTR((unused)),
- errcode_t error)
-{
- int i;
- const char *p;
- ext2_filsys fs = (ext2_filsys) channel->app_data;
- e2fsck_t ctx;
-
- ctx = (e2fsck_t) fs->priv_data;
-
- /*
- * If more than one block was written, try writing each block
- * separately. We could use the actual bytes read to figure
- * out where to start, but we don't bother.
- */
- if (count > 1) {
- p = (const char *) data;
- for (i=0; i < count; i++, p += channel->block_size, block++) {
- error = io_channel_write_blk(channel, block,
- 1, p);
- if (error)
- return error;
- }
- return 0;
- }
-
- if (operation)
- printf(_("Error writing block %lu (%s) while %s. "), block,
- error_message(error), operation);
- else
- printf(_("Error writing block %lu (%s). "), block,
- error_message(error));
- preenhalt(ctx);
- if (ask(ctx, _("Ignore error"), 1))
- return 0;
-
- return error;
-}
-
-const char *ehandler_operation(const char *op)
-{
- const char *ret = operation;
-
- operation = op;
- return ret;
-}
-
-void ehandler_init(io_channel channel)
-{
- channel->read_error = e2fsck_handle_read_error;
- channel->write_error = e2fsck_handle_write_error;
-}
+++ /dev/null
-/*
- * Compatibility header file for e2fsck which should be included
- * instead of linux/jfs.h
- *
- * Copyright (C) 2000 Stephen C. Tweedie
- *
- * This file may be redistributed under the terms of the
- * GNU General Public License version 2 or at your discretion
- * any later version.
- */
-
-/*
- * Pull in the definition of the e2fsck context structure
- */
-#include "e2fsck.h"
-
-struct buffer_head {
- char b_data[8192];
- e2fsck_t b_ctx;
- io_channel b_io;
- int b_size;
- blk_t b_blocknr;
- int b_dirty;
- int b_uptodate;
- int b_err;
-};
-
-struct inode {
- e2fsck_t i_ctx;
- ext2_ino_t i_ino;
- struct ext2_inode i_ext2;
-};
-
-struct kdev_s {
- e2fsck_t k_ctx;
- int k_dev;
-};
-
-#define K_DEV_FS 1
-#define K_DEV_JOURNAL 2
-
-typedef struct kdev_s *kdev_t;
-
-#define lock_buffer(bh) do {} while(0)
-#define unlock_buffer(bh) do {} while(0)
-#define buffer_req(bh) 1
-#define do_readahead(journal, start) do {} while(0)
-
-extern e2fsck_t e2fsck_global_ctx; /* Try your very best not to use this! */
-
-typedef struct {
- int object_length;
-} kmem_cache_t;
-
-#define kmem_cache_alloc(cache,flags) malloc((cache)->object_length)
-#define kmem_cache_free(cache,obj) free(obj)
-#define kmem_cache_create(name,len,a,b,c,d) do_cache_create(len)
-#define kmem_cache_destroy(cache) do_cache_destroy(cache)
-#define kmalloc(len,flags) malloc(len)
-#define kfree(p) free(p)
-
-/*
- * We use the standard libext2fs portability tricks for inline
- * functions.
- */
-extern kmem_cache_t * do_cache_create(int len);
-extern void do_cache_destroy(kmem_cache_t *cache);
-
-#if (defined(E2FSCK_INCLUDE_INLINE_FUNCS) || !defined(NO_INLINE_FUNCS))
-#ifdef E2FSCK_INCLUDE_INLINE_FUNCS
-#define _INLINE_ extern
-#else
-#ifdef __GNUC__
-#define _INLINE_ extern __inline__
-#else /* For Watcom C */
-#define _INLINE_ extern inline
-#endif
-#endif
-
-_INLINE_ kmem_cache_t * do_cache_create(int len)
-{
- kmem_cache_t *new_cache;
- new_cache = malloc(sizeof(*new_cache));
- if (new_cache)
- new_cache->object_length = len;
- return new_cache;
-}
-
-_INLINE_ void do_cache_destroy(kmem_cache_t *cache)
-{
- free(cache);
-}
-#undef _INLINE_
-#endif
-
-#define __init
-
-/*
- * Now pull in the real linux/jfs.h definitions.
- */
-#include <ext2fs/kernel-jbd.h>
-
-/*
- * Kernel compatibility functions are defined in journal.c
- */
-int journal_bmap(journal_t *journal, blk_t block, unsigned long *phys);
-struct buffer_head *getblk(kdev_t ctx, blk_t blocknr, int blocksize);
-void sync_blockdev(kdev_t kdev);
-void ll_rw_block(int rw, int dummy, struct buffer_head *bh[]);
-void mark_buffer_dirty(struct buffer_head *bh);
-void mark_buffer_uptodate(struct buffer_head *bh, int val);
-void brelse(struct buffer_head *bh);
-int buffer_uptodate(struct buffer_head *bh);
-void wait_on_buffer(struct buffer_head *bh);
-
-/*
- * Define newer 2.5 interfaces
- */
-#define __getblk(dev, blocknr, blocksize) getblk(dev, blocknr, blocksize)
-#define set_buffer_uptodate(bh) mark_buffer_uptodate(bh, 1)
+++ /dev/null
-/*
- * journal.c --- code for handling the "ext3" journal
- *
- * Copyright (C) 2000 Andreas Dilger
- * Copyright (C) 2000 Theodore Ts'o
- *
- * Parts of the code are based on fs/jfs/journal.c by Stephen C. Tweedie
- * Copyright (C) 1999 Red Hat Software
- *
- * This file may be redistributed under the terms of the
- * GNU General Public License version 2 or at your discretion
- * any later version.
- */
-
-#ifdef HAVE_SYS_MOUNT_H
-#include <sys/param.h>
-#include <sys/mount.h>
-#define MNT_FL (MS_MGC_VAL | MS_RDONLY)
-#endif
-#ifdef HAVE_SYS_STAT_H
-#include <sys/stat.h>
-#endif
-
-#define E2FSCK_INCLUDE_INLINE_FUNCS
-#include "jfs_user.h"
-#include "problem.h"
-#include "uuid/uuid.h"
-
-#ifdef __CONFIG_JBD_DEBUG__E2FS /* Enabled by configure --enable-jfs-debug */
-static int bh_count = 0;
-#endif
-
-/*
- * Define USE_INODE_IO to use the inode_io.c / fileio.c codepaths.
- * This creates a larger static binary, and a smaller binary using
- * shared libraries. It's also probably slightly less CPU-efficient,
- * which is why it's not on by default. But, it's a good way of
- * testing the functions in inode_io.c and fileio.c.
- */
-#undef USE_INODE_IO
-
-/* Kernel compatibility functions for handling the journal. These allow us
- * to use the recovery.c file virtually unchanged from the kernel, so we
- * don't have to do much to keep kernel and user recovery in sync.
- */
-int journal_bmap(journal_t *journal, blk_t block, unsigned long *phys)
-{
-#ifdef USE_INODE_IO
- *phys = block;
- return 0;
-#else
- struct inode *inode = journal->j_inode;
- errcode_t retval;
- blk_t pblk;
-
- if (!inode) {
- *phys = block;
- return 0;
- }
-
- retval= ext2fs_bmap(inode->i_ctx->fs, inode->i_ino,
- &inode->i_ext2, NULL, 0, block, &pblk);
- *phys = pblk;
- return (retval);
-#endif
-}
-
-struct buffer_head *getblk(kdev_t kdev, blk_t blocknr, int blocksize)
-{
- struct buffer_head *bh;
-
- bh = e2fsck_allocate_memory(kdev->k_ctx, sizeof(*bh), "block buffer");
- if (!bh)
- return NULL;
-
- jfs_debug(4, "getblk for block %lu (%d bytes)(total %d)\n",
- (unsigned long) blocknr, blocksize, ++bh_count);
-
- bh->b_ctx = kdev->k_ctx;
- if (kdev->k_dev == K_DEV_FS)
- bh->b_io = kdev->k_ctx->fs->io;
- else
- bh->b_io = kdev->k_ctx->journal_io;
- bh->b_size = blocksize;
- bh->b_blocknr = blocknr;
-
- return bh;
-}
-
-void sync_blockdev(kdev_t kdev)
-{
- io_channel io;
-
- if (kdev->k_dev == K_DEV_FS)
- io = kdev->k_ctx->fs->io;
- else
- io = kdev->k_ctx->journal_io;
-
- io_channel_flush(io);
-}
-
-void ll_rw_block(int rw, int nr, struct buffer_head *bhp[])
-{
- int retval;
- struct buffer_head *bh;
-
- for (; nr > 0; --nr) {
- bh = *bhp++;
- if (rw == READ && !bh->b_uptodate) {
- jfs_debug(3, "reading block %lu/%p\n",
- (unsigned long) bh->b_blocknr, (void *) bh);
- retval = io_channel_read_blk(bh->b_io,
- bh->b_blocknr,
- 1, bh->b_data);
- if (retval) {
- com_err(bh->b_ctx->device_name, retval,
- "while reading block %lu\n",
- (unsigned long) bh->b_blocknr);
- bh->b_err = retval;
- continue;
- }
- bh->b_uptodate = 1;
- } else if (rw == WRITE && bh->b_dirty) {
- jfs_debug(3, "writing block %lu/%p\n",
- (unsigned long) bh->b_blocknr, (void *) bh);
- retval = io_channel_write_blk(bh->b_io,
- bh->b_blocknr,
- 1, bh->b_data);
- if (retval) {
- com_err(bh->b_ctx->device_name, retval,
- "while writing block %lu\n",
- (unsigned long) bh->b_blocknr);
- bh->b_err = retval;
- continue;
- }
- bh->b_dirty = 0;
- bh->b_uptodate = 1;
- } else {
- jfs_debug(3, "no-op %s for block %lu\n",
- rw == READ ? "read" : "write",
- (unsigned long) bh->b_blocknr);
- }
- }
-}
-
-void mark_buffer_dirty(struct buffer_head *bh)
-{
- bh->b_dirty = 1;
-}
-
-static void mark_buffer_clean(struct buffer_head * bh)
-{
- bh->b_dirty = 0;
-}
-
-void brelse(struct buffer_head *bh)
-{
- if (bh->b_dirty)
- ll_rw_block(WRITE, 1, &bh);
- jfs_debug(3, "freeing block %lu/%p (total %d)\n",
- (unsigned long) bh->b_blocknr, (void *) bh, --bh_count);
- ext2fs_free_mem(&bh);
-}
-
-int buffer_uptodate(struct buffer_head *bh)
-{
- return bh->b_uptodate;
-}
-
-void mark_buffer_uptodate(struct buffer_head *bh, int val)
-{
- bh->b_uptodate = val;
-}
-
-void wait_on_buffer(struct buffer_head *bh)
-{
- if (!bh->b_uptodate)
- ll_rw_block(READ, 1, &bh);
-}
-
-
-static void e2fsck_clear_recover(e2fsck_t ctx, int error)
-{
- ctx->fs->super->s_feature_incompat &= ~EXT3_FEATURE_INCOMPAT_RECOVER;
-
- /* if we had an error doing journal recovery, we need a full fsck */
- if (error)
- ctx->fs->super->s_state &= ~EXT2_VALID_FS;
- ext2fs_mark_super_dirty(ctx->fs);
-}
-
-static errcode_t e2fsck_get_journal(e2fsck_t ctx, journal_t **ret_journal)
-{
- struct ext2_super_block *sb = ctx->fs->super;
- struct ext2_super_block jsuper;
- struct problem_context pctx;
- struct buffer_head *bh;
- struct inode *j_inode = NULL;
- struct kdev_s *dev_fs = NULL, *dev_journal;
- const char *journal_name = 0;
- journal_t *journal = NULL;
- errcode_t retval = 0;
- io_manager io_ptr = 0;
- unsigned long start = 0;
- blk_t blk;
- int ext_journal = 0;
- int tried_backup_jnl = 0;
- int i;
-
- clear_problem_context(&pctx);
-
- journal = e2fsck_allocate_memory(ctx, sizeof(journal_t), "journal");
- if (!journal) {
- return EXT2_ET_NO_MEMORY;
- }
-
- dev_fs = e2fsck_allocate_memory(ctx, 2*sizeof(struct kdev_s), "kdev");
- if (!dev_fs) {
- retval = EXT2_ET_NO_MEMORY;
- goto errout;
- }
- dev_journal = dev_fs+1;
-
- dev_fs->k_ctx = dev_journal->k_ctx = ctx;
- dev_fs->k_dev = K_DEV_FS;
- dev_journal->k_dev = K_DEV_JOURNAL;
-
- journal->j_dev = dev_journal;
- journal->j_fs_dev = dev_fs;
- journal->j_inode = NULL;
- journal->j_blocksize = ctx->fs->blocksize;
-
- if (uuid_is_null(sb->s_journal_uuid)) {
- if (!sb->s_journal_inum)
- return EXT2_ET_BAD_INODE_NUM;
- j_inode = e2fsck_allocate_memory(ctx, sizeof(*j_inode),
- "journal inode");
- if (!j_inode) {
- retval = EXT2_ET_NO_MEMORY;
- goto errout;
- }
-
- j_inode->i_ctx = ctx;
- j_inode->i_ino = sb->s_journal_inum;
-
- if ((retval = ext2fs_read_inode(ctx->fs,
- sb->s_journal_inum,
- &j_inode->i_ext2))) {
- try_backup_journal:
- if (sb->s_jnl_backup_type != EXT3_JNL_BACKUP_BLOCKS ||
- tried_backup_jnl)
- goto errout;
- memset(&j_inode->i_ext2, 0, sizeof(struct ext2_inode));
- memcpy(&j_inode->i_ext2.i_block[0], sb->s_jnl_blocks,
- EXT2_N_BLOCKS*4);
- j_inode->i_ext2.i_size = sb->s_jnl_blocks[16];
- j_inode->i_ext2.i_links_count = 1;
- j_inode->i_ext2.i_mode = LINUX_S_IFREG | 0600;
- tried_backup_jnl++;
- }
- if (!j_inode->i_ext2.i_links_count ||
- !LINUX_S_ISREG(j_inode->i_ext2.i_mode)) {
- retval = EXT2_ET_NO_JOURNAL;
- goto try_backup_journal;
- }
- if (j_inode->i_ext2.i_size / journal->j_blocksize <
- JFS_MIN_JOURNAL_BLOCKS) {
- retval = EXT2_ET_JOURNAL_TOO_SMALL;
- goto try_backup_journal;
- }
- for (i=0; i < EXT2_N_BLOCKS; i++) {
- blk = j_inode->i_ext2.i_block[i];
- if (!blk) {
- if (i < EXT2_NDIR_BLOCKS) {
- retval = EXT2_ET_JOURNAL_TOO_SMALL;
- goto try_backup_journal;
- }
- continue;
- }
- if (blk < sb->s_first_data_block ||
- blk >= sb->s_blocks_count) {
- retval = EXT2_ET_BAD_BLOCK_NUM;
- goto try_backup_journal;
- }
- }
- journal->j_maxlen = j_inode->i_ext2.i_size / journal->j_blocksize;
-
-#ifdef USE_INODE_IO
- retval = ext2fs_inode_io_intern2(ctx->fs, sb->s_journal_inum,
- &j_inode->i_ext2,
- &journal_name);
- if (retval)
- goto errout;
-
- io_ptr = inode_io_manager;
-#else
- journal->j_inode = j_inode;
- ctx->journal_io = ctx->fs->io;
- if ((retval = journal_bmap(journal, 0, &start)) != 0)
- goto errout;
-#endif
- } else {
- ext_journal = 1;
- if (!ctx->journal_name) {
- char uuid[37];
-
- uuid_unparse(sb->s_journal_uuid, uuid);
- ctx->journal_name = blkid_get_devname(ctx->blkid,
- "UUID", uuid);
- if (!ctx->journal_name)
- ctx->journal_name = blkid_devno_to_devname(sb->s_journal_dev);
- }
- journal_name = ctx->journal_name;
-
- if (!journal_name) {
- fix_problem(ctx, PR_0_CANT_FIND_JOURNAL, &pctx);
- return EXT2_ET_LOAD_EXT_JOURNAL;
- }
-
- jfs_debug(1, "Using journal file %s\n", journal_name);
- io_ptr = unix_io_manager;
- }
-
-#if 0
- test_io_backing_manager = io_ptr;
- io_ptr = test_io_manager;
-#endif
-#ifndef USE_INODE_IO
- if (ext_journal)
-#endif
- retval = io_ptr->open(journal_name, IO_FLAG_RW,
- &ctx->journal_io);
- if (retval)
- goto errout;
-
- io_channel_set_blksize(ctx->journal_io, ctx->fs->blocksize);
-
- if (ext_journal) {
- if (ctx->fs->blocksize == 1024)
- start = 1;
- bh = getblk(dev_journal, start, ctx->fs->blocksize);
- if (!bh) {
- retval = EXT2_ET_NO_MEMORY;
- goto errout;
- }
- ll_rw_block(READ, 1, &bh);
- if ((retval = bh->b_err) != 0)
- goto errout;
- memcpy(&jsuper, start ? bh->b_data : bh->b_data + 1024,
- sizeof(jsuper));
- brelse(bh);
-#ifdef EXT2FS_ENABLE_SWAPFS
- if (jsuper.s_magic == ext2fs_swab16(EXT2_SUPER_MAGIC))
- ext2fs_swap_super(&jsuper);
-#endif
- if (jsuper.s_magic != EXT2_SUPER_MAGIC ||
- !(jsuper.s_feature_incompat & EXT3_FEATURE_INCOMPAT_JOURNAL_DEV)) {
- fix_problem(ctx, PR_0_EXT_JOURNAL_BAD_SUPER, &pctx);
- retval = EXT2_ET_LOAD_EXT_JOURNAL;
- goto errout;
- }
- /* Make sure the journal UUID is correct */
- if (memcmp(jsuper.s_uuid, ctx->fs->super->s_journal_uuid,
- sizeof(jsuper.s_uuid))) {
- fix_problem(ctx, PR_0_JOURNAL_BAD_UUID, &pctx);
- retval = EXT2_ET_LOAD_EXT_JOURNAL;
- goto errout;
- }
-
- journal->j_maxlen = jsuper.s_blocks_count;
- start++;
- }
-
- if (!(bh = getblk(dev_journal, start, journal->j_blocksize))) {
- retval = EXT2_ET_NO_MEMORY;
- goto errout;
- }
-
- journal->j_sb_buffer = bh;
- journal->j_superblock = (journal_superblock_t *)bh->b_data;
-
-#ifdef USE_INODE_IO
- if (j_inode)
- ext2fs_free_mem(&j_inode);
-#endif
-
- *ret_journal = journal;
- return 0;
-
-errout:
- if (dev_fs)
- ext2fs_free_mem(&dev_fs);
- if (j_inode)
- ext2fs_free_mem(&j_inode);
- if (journal)
- ext2fs_free_mem(&journal);
- return retval;
-
-}
-
-static errcode_t e2fsck_journal_fix_bad_inode(e2fsck_t ctx,
- struct problem_context *pctx)
-{
- struct ext2_super_block *sb = ctx->fs->super;
- int recover = ctx->fs->super->s_feature_incompat &
- EXT3_FEATURE_INCOMPAT_RECOVER;
- int has_journal = ctx->fs->super->s_feature_compat &
- EXT3_FEATURE_COMPAT_HAS_JOURNAL;
-
- if (has_journal || sb->s_journal_inum) {
- /* The journal inode is bogus, remove and force full fsck */
- pctx->ino = sb->s_journal_inum;
- if (fix_problem(ctx, PR_0_JOURNAL_BAD_INODE, pctx)) {
- if (has_journal && sb->s_journal_inum)
- printf("*** ext3 journal has been deleted - "
- "filesystem is now ext2 only ***\n\n");
- sb->s_feature_compat &= ~EXT3_FEATURE_COMPAT_HAS_JOURNAL;
- sb->s_journal_inum = 0;
- ctx->flags |= E2F_FLAG_JOURNAL_INODE; /* FIXME: todo */
- e2fsck_clear_recover(ctx, 1);
- return 0;
- }
- return EXT2_ET_BAD_INODE_NUM;
- } else if (recover) {
- if (fix_problem(ctx, PR_0_JOURNAL_RECOVER_SET, pctx)) {
- e2fsck_clear_recover(ctx, 1);
- return 0;
- }
- return EXT2_ET_UNSUPP_FEATURE;
- }
- return 0;
-}
-
-#define V1_SB_SIZE 0x0024
-static void clear_v2_journal_fields(journal_t *journal)
-{
- e2fsck_t ctx = journal->j_dev->k_ctx;
- struct problem_context pctx;
-
- clear_problem_context(&pctx);
-
- if (!fix_problem(ctx, PR_0_CLEAR_V2_JOURNAL, &pctx))
- return;
-
- memset(((char *) journal->j_superblock) + V1_SB_SIZE, 0,
- ctx->fs->blocksize-V1_SB_SIZE);
- mark_buffer_dirty(journal->j_sb_buffer);
-}
-
-
-static errcode_t e2fsck_journal_load(journal_t *journal)
-{
- e2fsck_t ctx = journal->j_dev->k_ctx;
- journal_superblock_t *jsb;
- struct buffer_head *jbh = journal->j_sb_buffer;
- struct problem_context pctx;
-
- clear_problem_context(&pctx);
-
- ll_rw_block(READ, 1, &jbh);
- if (jbh->b_err) {
- com_err(ctx->device_name, jbh->b_err,
- _("reading journal superblock\n"));
- return jbh->b_err;
- }
-
- jsb = journal->j_superblock;
- /* If we don't even have JFS_MAGIC, we probably have a wrong inode */
- if (jsb->s_header.h_magic != htonl(JFS_MAGIC_NUMBER))
- return e2fsck_journal_fix_bad_inode(ctx, &pctx);
-
- switch (ntohl(jsb->s_header.h_blocktype)) {
- case JFS_SUPERBLOCK_V1:
- journal->j_format_version = 1;
- if (jsb->s_feature_compat ||
- jsb->s_feature_incompat ||
- jsb->s_feature_ro_compat ||
- jsb->s_nr_users)
- clear_v2_journal_fields(journal);
- break;
-
- case JFS_SUPERBLOCK_V2:
- journal->j_format_version = 2;
- if (ntohl(jsb->s_nr_users) > 1 &&
- uuid_is_null(ctx->fs->super->s_journal_uuid))
- clear_v2_journal_fields(journal);
- if (ntohl(jsb->s_nr_users) > 1) {
- fix_problem(ctx, PR_0_JOURNAL_UNSUPP_MULTIFS, &pctx);
- return EXT2_ET_JOURNAL_UNSUPP_VERSION;
- }
- break;
-
- /*
- * These should never appear in a journal super block, so if
- * they do, the journal is badly corrupted.
- */
- case JFS_DESCRIPTOR_BLOCK:
- case JFS_COMMIT_BLOCK:
- case JFS_REVOKE_BLOCK:
- return EXT2_ET_CORRUPT_SUPERBLOCK;
-
- /* If we don't understand the superblock major type, but there
- * is a magic number, then it is likely to be a new format we
- * just don't understand, so leave it alone. */
- default:
- return EXT2_ET_JOURNAL_UNSUPP_VERSION;
- }
-
- if (JFS_HAS_INCOMPAT_FEATURE(journal, ~JFS_KNOWN_INCOMPAT_FEATURES))
- return EXT2_ET_UNSUPP_FEATURE;
-
- if (JFS_HAS_RO_COMPAT_FEATURE(journal, ~JFS_KNOWN_ROCOMPAT_FEATURES))
- return EXT2_ET_RO_UNSUPP_FEATURE;
-
- /* We have now checked whether we know enough about the journal
- * format to be able to proceed safely, so any other checks that
- * fail we should attempt to recover from. */
- if (jsb->s_blocksize != htonl(journal->j_blocksize)) {
- com_err(ctx->program_name, EXT2_ET_CORRUPT_SUPERBLOCK,
- _("%s: no valid journal superblock found\n"),
- ctx->device_name);
- return EXT2_ET_CORRUPT_SUPERBLOCK;
- }
-
- if (ntohl(jsb->s_maxlen) < journal->j_maxlen)
- journal->j_maxlen = ntohl(jsb->s_maxlen);
- else if (ntohl(jsb->s_maxlen) > journal->j_maxlen) {
- com_err(ctx->program_name, EXT2_ET_CORRUPT_SUPERBLOCK,
- _("%s: journal too short\n"),
- ctx->device_name);
- return EXT2_ET_CORRUPT_SUPERBLOCK;
- }
-
- journal->j_tail_sequence = ntohl(jsb->s_sequence);
- journal->j_transaction_sequence = journal->j_tail_sequence;
- journal->j_tail = ntohl(jsb->s_start);
- journal->j_first = ntohl(jsb->s_first);
- journal->j_last = ntohl(jsb->s_maxlen);
-
- return 0;
-}
-
-static void e2fsck_journal_reset_super(e2fsck_t ctx, journal_superblock_t *jsb,
- journal_t *journal)
-{
- char *p;
- union {
- uuid_t uuid;
- __u32 val[4];
- } u;
- __u32 new_seq = 0;
- int i;
-
- /* Leave a valid existing V1 superblock signature alone.
- * Anything unrecognisable we overwrite with a new V2
- * signature. */
-
- if (jsb->s_header.h_magic != htonl(JFS_MAGIC_NUMBER) ||
- jsb->s_header.h_blocktype != htonl(JFS_SUPERBLOCK_V1)) {
- jsb->s_header.h_magic = htonl(JFS_MAGIC_NUMBER);
- jsb->s_header.h_blocktype = htonl(JFS_SUPERBLOCK_V2);
- }
-
- /* Zero out everything else beyond the superblock header */
-
- p = ((char *) jsb) + sizeof(journal_header_t);
- memset (p, 0, ctx->fs->blocksize-sizeof(journal_header_t));
-
- jsb->s_blocksize = htonl(ctx->fs->blocksize);
- jsb->s_maxlen = htonl(journal->j_maxlen);
- jsb->s_first = htonl(1);
-
- /* Initialize the journal sequence number so that there is "no"
- * chance we will find old "valid" transactions in the journal.
- * This avoids the need to zero the whole journal (slow to do,
- * and risky when we are just recovering the filesystem).
- */
- uuid_generate(u.uuid);
- for (i = 0; i < 4; i ++)
- new_seq ^= u.val[i];
- jsb->s_sequence = htonl(new_seq);
-
- mark_buffer_dirty(journal->j_sb_buffer);
- ll_rw_block(WRITE, 1, &journal->j_sb_buffer);
-}
-
-static errcode_t e2fsck_journal_fix_corrupt_super(e2fsck_t ctx,
- journal_t *journal,
- struct problem_context *pctx)
-{
- struct ext2_super_block *sb = ctx->fs->super;
- int recover = ctx->fs->super->s_feature_incompat &
- EXT3_FEATURE_INCOMPAT_RECOVER;
-
- if (sb->s_feature_compat & EXT3_FEATURE_COMPAT_HAS_JOURNAL) {
- if (fix_problem(ctx, PR_0_JOURNAL_BAD_SUPER, pctx)) {
- e2fsck_journal_reset_super(ctx, journal->j_superblock,
- journal);
- journal->j_transaction_sequence = 1;
- e2fsck_clear_recover(ctx, recover);
- return 0;
- }
- return EXT2_ET_CORRUPT_SUPERBLOCK;
- } else if (e2fsck_journal_fix_bad_inode(ctx, pctx))
- return EXT2_ET_CORRUPT_SUPERBLOCK;
-
- return 0;
-}
-
-static void e2fsck_journal_release(e2fsck_t ctx, journal_t *journal,
- int reset, int drop)
-{
- journal_superblock_t *jsb;
-
- if (drop)
- mark_buffer_clean(journal->j_sb_buffer);
- else if (!(ctx->options & E2F_OPT_READONLY)) {
- jsb = journal->j_superblock;
- jsb->s_sequence = htonl(journal->j_transaction_sequence);
- if (reset)
- jsb->s_start = 0; /* this marks the journal as empty */
- mark_buffer_dirty(journal->j_sb_buffer);
- }
- brelse(journal->j_sb_buffer);
-
- if (ctx->journal_io) {
- if (ctx->fs && ctx->fs->io != ctx->journal_io)
- io_channel_close(ctx->journal_io);
- ctx->journal_io = 0;
- }
-
-#ifndef USE_INODE_IO
- if (journal->j_inode)
- ext2fs_free_mem(&journal->j_inode);
-#endif
- if (journal->j_fs_dev)
- ext2fs_free_mem(&journal->j_fs_dev);
- ext2fs_free_mem(&journal);
-}
-
-/*
- * This function makes sure that the superblock fields regarding the
- * journal are consistent.
- */
-int e2fsck_check_ext3_journal(e2fsck_t ctx)
-{
- struct ext2_super_block *sb = ctx->fs->super;
- journal_t *journal;
- int recover = ctx->fs->super->s_feature_incompat &
- EXT3_FEATURE_INCOMPAT_RECOVER;
- struct problem_context pctx;
- problem_t problem;
- int reset = 0, force_fsck = 0;
- int retval;
-
- /* If we don't have any journal features, don't do anything more */
- if (!(sb->s_feature_compat & EXT3_FEATURE_COMPAT_HAS_JOURNAL) &&
- !recover && sb->s_journal_inum == 0 && sb->s_journal_dev == 0 &&
- uuid_is_null(sb->s_journal_uuid))
- return 0;
-
- clear_problem_context(&pctx);
- pctx.num = sb->s_journal_inum;
-
- retval = e2fsck_get_journal(ctx, &journal);
- if (retval) {
- if ((retval == EXT2_ET_BAD_INODE_NUM) ||
- (retval == EXT2_ET_BAD_BLOCK_NUM) ||
- (retval == EXT2_ET_JOURNAL_TOO_SMALL) ||
- (retval == EXT2_ET_NO_JOURNAL))
- return e2fsck_journal_fix_bad_inode(ctx, &pctx);
- return retval;
- }
-
- retval = e2fsck_journal_load(journal);
- if (retval) {
- if ((retval == EXT2_ET_CORRUPT_SUPERBLOCK) ||
- ((retval == EXT2_ET_UNSUPP_FEATURE) &&
- (!fix_problem(ctx, PR_0_JOURNAL_UNSUPP_INCOMPAT,
- &pctx))) ||
- ((retval == EXT2_ET_RO_UNSUPP_FEATURE) &&
- (!fix_problem(ctx, PR_0_JOURNAL_UNSUPP_ROCOMPAT,
- &pctx))) ||
- ((retval == EXT2_ET_JOURNAL_UNSUPP_VERSION) &&
- (!fix_problem(ctx, PR_0_JOURNAL_UNSUPP_VERSION, &pctx))))
- retval = e2fsck_journal_fix_corrupt_super(ctx, journal,
- &pctx);
- e2fsck_journal_release(ctx, journal, 0, 1);
- return retval;
- }
-
- /*
- * We want to make the flags consistent here. We will not leave with
- * needs_recovery set but has_journal clear. We can't get in a loop
- * with -y, -n, or -p, only if a user isn't making up their mind.
- */
-no_has_journal:
- if (!(sb->s_feature_compat & EXT3_FEATURE_COMPAT_HAS_JOURNAL)) {
- recover = sb->s_feature_incompat & EXT3_FEATURE_INCOMPAT_RECOVER;
- pctx.str = "inode";
- if (fix_problem(ctx, PR_0_JOURNAL_HAS_JOURNAL, &pctx)) {
- if (recover &&
- !fix_problem(ctx, PR_0_JOURNAL_RECOVER_SET, &pctx))
- goto no_has_journal;
- /*
- * Need a full fsck if we are releasing a
- * journal stored on a reserved inode.
- */
- force_fsck = recover ||
- (sb->s_journal_inum < EXT2_FIRST_INODE(sb));
- /* Clear all of the journal fields */
- sb->s_journal_inum = 0;
- sb->s_journal_dev = 0;
- memset(sb->s_journal_uuid, 0,
- sizeof(sb->s_journal_uuid));
- e2fsck_clear_recover(ctx, force_fsck);
- } else if (!(ctx->options & E2F_OPT_READONLY)) {
- sb->s_feature_compat |= EXT3_FEATURE_COMPAT_HAS_JOURNAL;
- ext2fs_mark_super_dirty(ctx->fs);
- }
- }
-
- if (sb->s_feature_compat & EXT3_FEATURE_COMPAT_HAS_JOURNAL &&
- !(sb->s_feature_incompat & EXT3_FEATURE_INCOMPAT_RECOVER) &&
- journal->j_superblock->s_start != 0) {
- /* Print status information */
- fix_problem(ctx, PR_0_JOURNAL_RECOVERY_CLEAR, &pctx);
- if (ctx->superblock)
- problem = PR_0_JOURNAL_RUN_DEFAULT;
- else
- problem = PR_0_JOURNAL_RUN;
- if (fix_problem(ctx, problem, &pctx)) {
- ctx->options |= E2F_OPT_FORCE;
- sb->s_feature_incompat |=
- EXT3_FEATURE_INCOMPAT_RECOVER;
- ext2fs_mark_super_dirty(ctx->fs);
- } else if (fix_problem(ctx,
- PR_0_JOURNAL_RESET_JOURNAL, &pctx)) {
- reset = 1;
- sb->s_state &= ~EXT2_VALID_FS;
- ext2fs_mark_super_dirty(ctx->fs);
- }
- /*
- * If the user answers no to the above question, we
- * ignore the fact that journal apparently has data;
- * accidentally replaying over valid data would be far
- * worse than skipping a questionable recovery.
- *
- * XXX should we abort with a fatal error here? What
- * will the ext3 kernel code do if a filesystem with
- * !NEEDS_RECOVERY but with a non-zero
- * journal->j_superblock->s_start is mounted?
- */
- }
-
- e2fsck_journal_release(ctx, journal, reset, 0);
- return retval;
-}
-
-static errcode_t recover_ext3_journal(e2fsck_t ctx)
-{
- journal_t *journal;
- int retval;
-
- journal_init_revoke_caches();
- retval = e2fsck_get_journal(ctx, &journal);
- if (retval)
- return retval;
-
- retval = e2fsck_journal_load(journal);
- if (retval)
- goto errout;
-
- retval = journal_init_revoke(journal, 1024);
- if (retval)
- goto errout;
-
- retval = -journal_recover(journal);
- if (retval)
- goto errout;
-
- if (journal->j_superblock->s_errno) {
- ctx->fs->super->s_state |= EXT2_ERROR_FS;
- ext2fs_mark_super_dirty(ctx->fs);
- journal->j_superblock->s_errno = 0;
- mark_buffer_dirty(journal->j_sb_buffer);
- }
-
-errout:
- journal_destroy_revoke(journal);
- journal_destroy_revoke_caches();
- e2fsck_journal_release(ctx, journal, 1, 0);
- return retval;
-}
-
-int e2fsck_run_ext3_journal(e2fsck_t ctx)
-{
- io_manager io_ptr = ctx->fs->io->manager;
- int blocksize = ctx->fs->blocksize;
- errcode_t retval, recover_retval;
-
- printf(_("%s: recovering journal\n"), ctx->device_name);
- if (ctx->options & E2F_OPT_READONLY) {
- printf(_("%s: won't do journal recovery while read-only\n"),
- ctx->device_name);
- return EXT2_ET_FILE_RO;
- }
-
- if (ctx->fs->flags & EXT2_FLAG_DIRTY)
- ext2fs_flush(ctx->fs); /* Force out any modifications */
-
- recover_retval = recover_ext3_journal(ctx);
-
- /*
- * Reload the filesystem context to get up-to-date data from disk
- * because journal recovery will change the filesystem under us.
- */
- ext2fs_close(ctx->fs);
- retval = ext2fs_open(ctx->filesystem_name, EXT2_FLAG_RW,
- ctx->superblock, blocksize, io_ptr,
- &ctx->fs);
-
- if (retval) {
- com_err(ctx->program_name, retval,
- _("while trying to re-open %s"),
- ctx->device_name);
- fatal_error(ctx, 0);
- }
- ctx->fs->priv_data = ctx;
-
- /* Set the superblock flags */
- e2fsck_clear_recover(ctx, recover_retval);
- return recover_retval;
-}
-
-/*
- * This function will move the journal inode from a visible file in
- * the filesystem directory hierarchy to the reserved inode if necessary.
- */
-static const char * const journal_names[] = {
- ".journal", "journal", ".journal.dat", "journal.dat", 0 };
-
-void e2fsck_move_ext3_journal(e2fsck_t ctx)
-{
- struct ext2_super_block *sb = ctx->fs->super;
- struct problem_context pctx;
- struct ext2_inode inode;
- ext2_filsys fs = ctx->fs;
- ext2_ino_t ino;
- errcode_t retval;
- const char * const * cpp;
- int group, mount_flags;
-
- clear_problem_context(&pctx);
-
- /*
- * If the filesystem is opened read-only, or there is no
- * journal, then do nothing.
- */
- if ((ctx->options & E2F_OPT_READONLY) ||
- (sb->s_journal_inum == 0) ||
- !(sb->s_feature_compat & EXT3_FEATURE_COMPAT_HAS_JOURNAL))
- return;
-
- /*
- * Read in the journal inode
- */
- if (ext2fs_read_inode(fs, sb->s_journal_inum, &inode) != 0)
- return;
-
- /*
- * If it's necessary to backup the journal inode, do so.
- */
- if ((sb->s_jnl_backup_type == 0) ||
- ((sb->s_jnl_backup_type == EXT3_JNL_BACKUP_BLOCKS) &&
- memcmp(inode.i_block, sb->s_jnl_blocks, EXT2_N_BLOCKS*4))) {
- if (fix_problem(ctx, PR_0_BACKUP_JNL, &pctx)) {
- memcpy(sb->s_jnl_blocks, inode.i_block,
- EXT2_N_BLOCKS*4);
- sb->s_jnl_blocks[16] = inode.i_size;
- sb->s_jnl_backup_type = EXT3_JNL_BACKUP_BLOCKS;
- ext2fs_mark_super_dirty(fs);
- fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
- }
- }
-
- /*
- * If the journal is already the hidden inode, then do nothing
- */
- if (sb->s_journal_inum == EXT2_JOURNAL_INO)
- return;
-
- /*
- * The journal inode had better have only one link and not be readable.
- */
- if (inode.i_links_count != 1)
- return;
-
- /*
- * If the filesystem is mounted, or we can't tell whether
- * or not it's mounted, do nothing.
- */
- retval = ext2fs_check_if_mounted(ctx->filesystem_name, &mount_flags);
- if (retval || (mount_flags & EXT2_MF_MOUNTED))
- return;
-
- /*
- * If we can't find the name of the journal inode, then do
- * nothing.
- */
- for (cpp = journal_names; *cpp; cpp++) {
- retval = ext2fs_lookup(fs, EXT2_ROOT_INO, *cpp,
- strlen(*cpp), 0, &ino);
- if ((retval == 0) && (ino == sb->s_journal_inum))
- break;
- }
- if (*cpp == 0)
- return;
-
- /* We need the inode bitmap to be loaded */
- retval = ext2fs_read_bitmaps(fs);
- if (retval)
- return;
-
- pctx.str = *cpp;
- if (!fix_problem(ctx, PR_0_MOVE_JOURNAL, &pctx))
- return;
-
- /*
- * OK, we've done all the checks, let's actually move the
- * journal inode. Errors at this point mean we need to force
- * an ext2 filesystem check.
- */
- if ((retval = ext2fs_unlink(fs, EXT2_ROOT_INO, *cpp, ino, 0)) != 0)
- goto err_out;
- if ((retval = ext2fs_write_inode(fs, EXT2_JOURNAL_INO, &inode)) != 0)
- goto err_out;
- sb->s_journal_inum = EXT2_JOURNAL_INO;
- ext2fs_mark_super_dirty(fs);
- fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
- inode.i_links_count = 0;
- inode.i_dtime = time(0);
- if ((retval = ext2fs_write_inode(fs, ino, &inode)) != 0)
- goto err_out;
-
- group = ext2fs_group_of_ino(fs, ino);
- ext2fs_unmark_inode_bitmap(fs->inode_map, ino);
- ext2fs_mark_ib_dirty(fs);
- fs->group_desc[group].bg_free_inodes_count++;
- fs->super->s_free_inodes_count++;
- return;
-
-err_out:
- pctx.errcode = retval;
- fix_problem(ctx, PR_0_ERR_MOVE_JOURNAL, &pctx);
- fs->super->s_state &= ~EXT2_VALID_FS;
- ext2fs_mark_super_dirty(fs);
- return;
-}
-
+++ /dev/null
-/*
- * message.c --- print e2fsck messages (with compression)
- *
- * Copyright 1996, 1997 by Theodore Ts'o
- *
- * %Begin-Header%
- * This file may be redistributed under the terms of the GNU Public
- * License.
- * %End-Header%
- *
- * print_e2fsck_message() prints a message to the user, using
- * compression techniques and expansions of abbreviations.
- *
- * The following % expansions are supported:
- *
- * %b <blk> block number
- * %B <blkcount> integer
- * %c <blk2> block number
- * %Di <dirent>->ino inode number
- * %Dn <dirent>->name string
- * %Dr <dirent>->rec_len
- * %Dl <dirent>->name_len
- * %Dt <dirent>->filetype
- * %d <dir> inode number
- * %g <group> integer
- * %i <ino> inode number
- * %Is <inode> -> i_size
- * %IS <inode> -> i_extra_isize
- * %Ib <inode> -> i_blocks
- * %Il <inode> -> i_links_count
- * %Im <inode> -> i_mode
- * %IM <inode> -> i_mtime
- * %IF <inode> -> i_faddr
- * %If <inode> -> i_file_acl
- * %Id <inode> -> i_dir_acl
- * %Iu <inode> -> i_uid
- * %Ig <inode> -> i_gid
- * %j <ino2> inode number
- * %m <com_err error message>
- * %N <num>
- * %p ext2fs_get_pathname of directory <ino>
- * %P ext2fs_get_pathname of <dirent>->ino with <ino2> as
- * the containing directory. (If dirent is NULL
- * then return the pathname of directory <ino2>)
- * %q ext2fs_get_pathname of directory <dir>
- * %Q ext2fs_get_pathname of directory <ino> with <dir> as
- * the containing directory.
- * %s <str> miscellaneous string
- * %S backup superblock
- * %X <num> hexadecimal format
- *
- * The following '@' expansions are supported:
- *
- * @a extended attribute
- * @A error allocating
- * @b block
- * @B bitmap
- * @c compress
- * @C conflicts with some other fs block
- * @D deleted
- * @d directory
- * @e entry
- * @E Entry '%Dn' in %p (%i)
- * @f filesystem
- * @F for @i %i (%Q) is
- * @g group
- * @h HTREE directory inode
- * @i inode
- * @I illegal
- * @j journal
- * @l lost+found
- * @L is a link
- * @o orphaned
- * @p problem in
- * @r root inode
- * @s should be
- * @S superblock
- * @u unattached
- * @v device
- * @z zero-length
- */
-
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-#include <ctype.h>
-#include <termios.h>
-
-#include "e2fsck.h"
-
-#include "problem.h"
-
-#ifdef __GNUC__
-#define _INLINE_ __inline__
-#else
-#define _INLINE_
-#endif
-
-/*
- * This structure defines the abbreviations used by the text strings
- * below. The first character in the string is the index letter. An
- * abbreviation of the form '@<i>' is expanded by looking up the index
- * letter <i> in the table below.
- */
-static const char *abbrevs[] = {
- N_("aextended attribute"),
- N_("Aerror allocating"),
- N_("bblock"),
- N_("Bbitmap"),
- N_("ccompress"),
- N_("Cconflicts with some other fs @b"),
- N_("iinode"),
- N_("Iillegal"),
- N_("jjournal"),
- N_("Ddeleted"),
- N_("ddirectory"),
- N_("eentry"),
- N_("E@e '%Dn' in %p (%i)"),
- N_("ffilesystem"),
- N_("Ffor @i %i (%Q) is"),
- N_("ggroup"),
- N_("hHTREE @d @i"),
- N_("llost+found"),
- N_("Lis a link"),
- N_("oorphaned"),
- N_("pproblem in"),
- N_("rroot @i"),
- N_("sshould be"),
- N_("Ssuper@b"),
- N_("uunattached"),
- N_("vdevice"),
- N_("zzero-length"),
- "@@",
- 0
- };
-
-/*
- * Give more user friendly names to the "special" inodes.
- */
-#define num_special_inodes 11
-static const char *special_inode_name[] =
-{
- N_("<The NULL inode>"), /* 0 */
- N_("<The bad blocks inode>"), /* 1 */
- "/", /* 2 */
- N_("<The ACL index inode>"), /* 3 */
- N_("<The ACL data inode>"), /* 4 */
- N_("<The boot loader inode>"), /* 5 */
- N_("<The undelete directory inode>"), /* 6 */
- N_("<The group descriptor inode>"), /* 7 */
- N_("<The journal inode>"), /* 8 */
- N_("<Reserved inode 9>"), /* 9 */
- N_("<Reserved inode 10>"), /* 10 */
-};
-
-/*
- * This function does "safe" printing. It will convert non-printable
- * ASCII characters using '^' and M- notation.
- */
-static void safe_print(const char *cp, int len)
-{
- unsigned char ch;
-
- if (len < 0)
- len = strlen(cp);
-
- while (len--) {
- ch = *cp++;
- if (ch > 128) {
- fputs("M-", stdout);
- ch -= 128;
- }
- if ((ch < 32) || (ch == 0x7f)) {
- fputc('^', stdout);
- ch ^= 0x40; /* ^@, ^A, ^B; ^? for DEL */
- }
- fputc(ch, stdout);
- }
-}
-
-
-/*
- * This function prints a pathname, using the ext2fs_get_pathname
- * function
- */
-static void print_pathname(ext2_filsys fs, ext2_ino_t dir, ext2_ino_t ino)
-{
- errcode_t retval;
- char *path;
-
- if (!dir && (ino < num_special_inodes)) {
- fputs(_(special_inode_name[ino]), stdout);
- return;
- }
-
- retval = ext2fs_get_pathname(fs, dir, ino, &path);
- if (retval)
- fputs("???", stdout);
- else {
- safe_print(path, -1);
- ext2fs_free_mem(&path);
- }
-}
-
-/*
- * This function handles the '@' expansion. We allow recursive
- * expansion; an @ expression can contain further '@' and '%'
- * expressions.
- */
-static _INLINE_ void expand_at_expression(e2fsck_t ctx, char ch,
- struct problem_context *pctx,
- int *first)
-{
- const char **cpp, *str;
-
- /* Search for the abbreviation */
- for (cpp = abbrevs; *cpp; cpp++) {
- if (ch == *cpp[0])
- break;
- }
- if (*cpp) {
- str = _(*cpp) + 1;
- if (*first && islower(*str)) {
- *first = 0;
- fputc(toupper(*str++), stdout);
- }
- print_e2fsck_message(ctx, str, pctx, *first);
- } else
- printf("@%c", ch);
-}
-
-/*
- * This function expands '%IX' expressions
- */
-static _INLINE_ void expand_inode_expression(char ch,
- struct problem_context *ctx)
-{
- struct ext2_inode *inode;
- struct ext2_inode_large *large_inode;
- char * time_str;
- time_t t;
- int do_gmt = -1;
-
- if (!ctx || !ctx->inode)
- goto no_inode;
-
- inode = ctx->inode;
- large_inode = (struct ext2_inode_large *) inode;
-
- switch (ch) {
- case 's':
- if (LINUX_S_ISDIR(inode->i_mode))
- printf("%u", inode->i_size);
- else {
-#ifdef EXT2_NO_64_TYPE
- if (inode->i_size_high)
- printf("0x%x%08x", inode->i_size_high,
- inode->i_size);
- else
- printf("%u", inode->i_size);
-#else
- printf("%llu", (inode->i_size |
- ((__u64) inode->i_size_high << 32)));
-#endif
- }
- break;
- case 'S':
- printf("%u", large_inode->i_extra_isize);
- break;
- case 'b':
- printf("%u", inode->i_blocks);
- break;
- case 'l':
- printf("%d", inode->i_links_count);
- break;
- case 'm':
- printf("0%o", inode->i_mode);
- break;
- case 'M':
- /* The diet libc doesn't respect the TZ environemnt variable */
- if (do_gmt == -1) {
- time_str = getenv("TZ");
- if (!time_str)
- time_str = "";
- do_gmt = !strcmp(time_str, "GMT");
- }
- t = inode->i_mtime;
- time_str = asctime(do_gmt ? gmtime(&t) : localtime(&t));
- printf("%.24s", time_str);
- break;
- case 'F':
- printf("%u", inode->i_faddr);
- break;
- case 'f':
- printf("%u", inode->i_file_acl);
- break;
- case 'd':
- printf("%u", (LINUX_S_ISDIR(inode->i_mode) ?
- inode->i_dir_acl : 0));
- break;
- case 'u':
- printf("%d", (inode->i_uid |
- (inode->osd2.linux2.l_i_uid_high << 16)));
- break;
- case 'g':
- printf("%d", (inode->i_gid |
- (inode->osd2.linux2.l_i_gid_high << 16)));
- break;
- default:
- no_inode:
- printf("%%I%c", ch);
- break;
- }
-}
-
-/*
- * This function expands '%dX' expressions
- */
-static _INLINE_ void expand_dirent_expression(char ch,
- struct problem_context *ctx)
-{
- struct ext2_dir_entry *dirent;
- int len;
-
- if (!ctx || !ctx->dirent)
- goto no_dirent;
-
- dirent = ctx->dirent;
-
- switch (ch) {
- case 'i':
- printf("%u", dirent->inode);
- break;
- case 'n':
- len = dirent->name_len & 0xFF;
- if (len > EXT2_NAME_LEN)
- len = EXT2_NAME_LEN;
- if (len > dirent->rec_len)
- len = dirent->rec_len;
- safe_print(dirent->name, len);
- break;
- case 'r':
- printf("%u", dirent->rec_len);
- break;
- case 'l':
- printf("%u", dirent->name_len & 0xFF);
- break;
- case 't':
- printf("%u", dirent->name_len >> 8);
- break;
- default:
- no_dirent:
- printf("%%D%c", ch);
- break;
- }
-}
-
-static _INLINE_ void expand_percent_expression(ext2_filsys fs, char ch,
- struct problem_context *ctx)
-{
- if (!ctx)
- goto no_context;
-
- switch (ch) {
- case '%':
- fputc('%', stdout);
- break;
- case 'b':
- printf("%u", ctx->blk);
- break;
- case 'B':
-#ifdef EXT2_NO_64_TYPE
- printf("%d", ctx->blkcount);
-#else
- printf("%lld", ctx->blkcount);
-#endif
- break;
- case 'c':
- printf("%u", ctx->blk2);
- break;
- case 'd':
- printf("%u", ctx->dir);
- break;
- case 'g':
- printf("%d", ctx->group);
- break;
- case 'i':
- printf("%u", ctx->ino);
- break;
- case 'j':
- printf("%u", ctx->ino2);
- break;
- case 'm':
- printf("%s", error_message(ctx->errcode));
- break;
- case 'N':
-#ifdef EXT2_NO_64_TYPE
- printf("%u", ctx->num);
-#else
- printf("%llu", ctx->num);
-#endif
- break;
- case 'p':
- print_pathname(fs, ctx->ino, 0);
- break;
- case 'P':
- print_pathname(fs, ctx->ino2,
- ctx->dirent ? ctx->dirent->inode : 0);
- break;
- case 'q':
- print_pathname(fs, ctx->dir, 0);
- break;
- case 'Q':
- print_pathname(fs, ctx->dir, ctx->ino);
- break;
- case 'S':
- printf("%d", get_backup_sb(NULL, fs, NULL, NULL));
- break;
- case 's':
- printf("%s", ctx->str ? ctx->str : "NULL");
- break;
- case 'X':
-#ifdef EXT2_NO_64_TYPE
- printf("0x%x", ctx->num);
-#else
- printf("0x%llx", ctx->num);
-#endif
- break;
- default:
- no_context:
- printf("%%%c", ch);
- break;
- }
-}
-
-void print_e2fsck_message(e2fsck_t ctx, const char *msg,
- struct problem_context *pctx, int first)
-{
- ext2_filsys fs = ctx->fs;
- const char * cp;
- int i;
-
- e2fsck_clear_progbar(ctx);
- for (cp = msg; *cp; cp++) {
- if (cp[0] == '@') {
- cp++;
- expand_at_expression(ctx, *cp, pctx, &first);
- } else if (cp[0] == '%' && cp[1] == 'I') {
- cp += 2;
- expand_inode_expression(*cp, pctx);
- } else if (cp[0] == '%' && cp[1] == 'D') {
- cp += 2;
- expand_dirent_expression(*cp, pctx);
- } else if ((cp[0] == '%')) {
- cp++;
- expand_percent_expression(fs, *cp, pctx);
- } else {
- for (i=0; cp[i]; i++)
- if ((cp[i] == '@') || cp[i] == '%')
- break;
- printf("%.*s", i, cp);
- cp += i-1;
- }
- first = 0;
- }
-}
+++ /dev/null
-/*
- * pass1.c -- pass #1 of e2fsck: sequential scan of the inode table
- *
- * Copyright (C) 1993, 1994, 1995, 1996, 1997 Theodore Ts'o.
- *
- * %Begin-Header%
- * This file may be redistributed under the terms of the GNU Public
- * License.
- * %End-Header%
- *
- * Pass 1 of e2fsck iterates over all the inodes in the filesystems,
- * and applies the following tests to each inode:
- *
- * - The mode field of the inode must be legal.
- * - The size and block count fields of the inode are correct.
- * - A data block must not be used by another inode
- *
- * Pass 1 also gathers the collects the following information:
- *
- * - A bitmap of which inodes are in use. (inode_used_map)
- * - A bitmap of which inodes are directories. (inode_dir_map)
- * - A bitmap of which inodes are regular files. (inode_reg_map)
- * - A bitmap of which inodes have bad fields. (inode_bad_map)
- * - A bitmap of which inodes are in bad blocks. (inode_bb_map)
- * - A bitmap of which inodes are imagic inodes. (inode_imagic_map)
- * - A bitmap of which blocks are in use. (block_found_map)
- * - A bitmap of which blocks are in use by two inodes (block_dup_map)
- * - The data blocks of the directory inodes. (dir_map)
- *
- * Pass 1 is designed to stash away enough information so that the
- * other passes should not need to read in the inode information
- * during the normal course of a filesystem check. (Althogh if an
- * inconsistency is detected, other passes may need to read in an
- * inode to fix it.)
- *
- * Note that pass 1B will be invoked if there are any duplicate blocks
- * found.
- */
-
-#define _GNU_SOURCE 1 /* get strnlen() */
-#include <string.h>
-#include <time.h>
-#ifdef HAVE_ERRNO_H
-#include <errno.h>
-#endif
-
-#include "e2fsck.h"
-#include <ext2fs/ext2_ext_attr.h>
-
-#include "problem.h"
-
-#ifdef NO_INLINE_FUNCS
-#define _INLINE_
-#else
-#define _INLINE_ inline
-#endif
-
-static int process_block(ext2_filsys fs, blk_t *blocknr,
- e2_blkcnt_t blockcnt, blk_t ref_blk,
- int ref_offset, void *priv_data);
-static int process_bad_block(ext2_filsys fs, blk_t *block_nr,
- e2_blkcnt_t blockcnt, blk_t ref_blk,
- int ref_offset, void *priv_data);
-static void check_blocks(e2fsck_t ctx, struct problem_context *pctx,
- char *block_buf);
-static void mark_table_blocks(e2fsck_t ctx);
-static void alloc_bb_map(e2fsck_t ctx);
-static void alloc_imagic_map(e2fsck_t ctx);
-static void mark_inode_bad(e2fsck_t ctx, ino_t ino);
-static void handle_fs_bad_blocks(e2fsck_t ctx);
-static void process_inodes(e2fsck_t ctx, char *block_buf);
-static EXT2_QSORT_TYPE process_inode_cmp(const void *a, const void *b);
-static errcode_t scan_callback(ext2_filsys fs, ext2_inode_scan scan,
- dgrp_t group, void * priv_data);
-static void adjust_extattr_refcount(e2fsck_t ctx, ext2_refcount_t refcount,
- char *block_buf, int adjust_sign);
-/* static char *describe_illegal_block(ext2_filsys fs, blk_t block); */
-
-extern void e2fsck_write_inode_full(e2fsck_t ctx, unsigned long ino,
- struct ext2_inode * inode, int bufsize,
- const char *proc);
-
-struct process_block_struct {
- ext2_ino_t ino;
- unsigned is_dir:1, is_reg:1, clear:1, suppress:1,
- fragmented:1, compressed:1, bbcheck:1;
- blk_t num_blocks;
- blk_t max_blocks;
- e2_blkcnt_t last_block;
- int num_illegal_blocks;
- blk_t previous_block;
- struct ext2_inode *inode;
- struct problem_context *pctx;
- ext2fs_block_bitmap fs_meta_blocks;
- e2fsck_t ctx;
-};
-
-struct process_inode_block {
- ext2_ino_t ino;
- struct ext2_inode inode;
-};
-
-struct scan_callback_struct {
- e2fsck_t ctx;
- char *block_buf;
-};
-
-/*
- * For the inodes to process list.
- */
-static struct process_inode_block *inodes_to_process;
-static int process_inode_count;
-
-static __u64 ext2_max_sizes[EXT2_MAX_BLOCK_LOG_SIZE -
- EXT2_MIN_BLOCK_LOG_SIZE + 1];
-
-/*
- * Free all memory allocated by pass1 in preparation for restarting
- * things.
- */
-static void unwind_pass1(ext2_filsys fs EXT2FS_ATTR((unused)))
-{
- ext2fs_free_mem(&inodes_to_process);
- inodes_to_process = 0;
-}
-
-/*
- * Check to make sure a device inode is real. Returns 1 if the device
- * checks out, 0 if not.
- *
- * Note: this routine is now also used to check FIFO's and Sockets,
- * since they have the same requirement; the i_block fields should be
- * zero.
- */
-int e2fsck_pass1_check_device_inode(ext2_filsys fs, struct ext2_inode *inode)
-{
- int i;
-
- /*
- * If i_blocks is non-zero, or the index flag is set, then
- * this is a bogus device/fifo/socket
- */
- if ((ext2fs_inode_data_blocks(fs, inode) != 0) ||
- (inode->i_flags & EXT2_INDEX_FL))
- return 0;
-
- /*
- * We should be able to do the test below all the time, but
- * because the kernel doesn't forcibly clear the device
- * inode's additional i_block fields, there are some rare
- * occasions when a legitimate device inode will have non-zero
- * additional i_block fields. So for now, we only complain
- * when the immutable flag is set, which should never happen
- * for devices. (And that's when the problem is caused, since
- * you can't set or clear immutable flags for devices.) Once
- * the kernel has been fixed we can change this...
- */
- if (inode->i_flags & (EXT2_IMMUTABLE_FL | EXT2_APPEND_FL)) {
- for (i=4; i < EXT2_N_BLOCKS; i++)
- if (inode->i_block[i])
- return 0;
- }
- return 1;
-}
-
-/*
- * Check to make sure a symlink inode is real. Returns 1 if the symlink
- * checks out, 0 if not.
- */
-int e2fsck_pass1_check_symlink(ext2_filsys fs, struct ext2_inode *inode,
- char *buf)
-{
- unsigned int len;
- int i;
- blk_t blocks;
-
- if ((inode->i_size_high || inode->i_size == 0) ||
- (inode->i_flags & EXT2_INDEX_FL))
- return 0;
-
- blocks = ext2fs_inode_data_blocks(fs, inode);
- if (blocks) {
- if ((inode->i_size >= fs->blocksize) ||
- (blocks != fs->blocksize >> 9) ||
- (inode->i_block[0] < fs->super->s_first_data_block) ||
- (inode->i_block[0] >= fs->super->s_blocks_count))
- return 0;
-
- for (i = 1; i < EXT2_N_BLOCKS; i++)
- if (inode->i_block[i])
- return 0;
-
- if (io_channel_read_blk(fs->io, inode->i_block[0], 1, buf))
- return 0;
-
- len = strnlen(buf, fs->blocksize);
- if (len == fs->blocksize)
- return 0;
- } else {
- if (inode->i_size >= sizeof(inode->i_block))
- return 0;
-
- len = strnlen((char *)inode->i_block, sizeof(inode->i_block));
- if (len == sizeof(inode->i_block))
- return 0;
- }
- if (len != inode->i_size)
- return 0;
- return 1;
-}
-
-/*
- * If the immutable (or append-only) flag is set on the inode, offer
- * to clear it.
- */
-#define BAD_SPECIAL_FLAGS (EXT2_IMMUTABLE_FL | EXT2_APPEND_FL)
-static void check_immutable(e2fsck_t ctx, struct problem_context *pctx)
-{
- if (!(pctx->inode->i_flags & BAD_SPECIAL_FLAGS))
- return;
-
- if (!fix_problem(ctx, PR_1_SET_IMMUTABLE, pctx))
- return;
-
- pctx->inode->i_flags &= ~BAD_SPECIAL_FLAGS;
- e2fsck_write_inode(ctx, pctx->ino, pctx->inode, "pass1");
-}
-
-/*
- * If device, fifo or socket, check size is zero -- if not offer to
- * clear it
- */
-static void check_size(e2fsck_t ctx, struct problem_context *pctx)
-{
- struct ext2_inode *inode = pctx->inode;
-
- if ((inode->i_size == 0) && (inode->i_size_high == 0))
- return;
-
- if (!fix_problem(ctx, PR_1_SET_NONZSIZE, pctx))
- return;
-
- inode->i_size = 0;
- inode->i_size_high = 0;
- e2fsck_write_inode(ctx, pctx->ino, pctx->inode, "pass1");
-}
-
-static void check_ea_in_inode(e2fsck_t ctx, struct problem_context *pctx)
-{
- struct ext2_super_block *sb = ctx->fs->super;
- struct ext2_inode_large *inode;
- struct ext2_ext_attr_entry *entry;
- char *start, *end;
- int storage_size, remain, offs;
- int problem = 0;
-
- inode = (struct ext2_inode_large *) pctx->inode;
- storage_size = EXT2_INODE_SIZE(ctx->fs->super) - EXT2_GOOD_OLD_INODE_SIZE -
- inode->i_extra_isize;
- start = ((char *) inode) + EXT2_GOOD_OLD_INODE_SIZE +
- inode->i_extra_isize + sizeof(__u32);
- end = (char *) inode + EXT2_INODE_SIZE(ctx->fs->super);
- entry = (struct ext2_ext_attr_entry *) start;
-
- /* scan all entry's headers first */
-
- /* take finish entry 0UL into account */
- remain = storage_size - sizeof(__u32);
- offs = end - start;
-
- while (!EXT2_EXT_IS_LAST_ENTRY(entry)) {
-
- /* header eats this space */
- remain -= sizeof(struct ext2_ext_attr_entry);
-
- /* is attribute name valid? */
- if (EXT2_EXT_ATTR_SIZE(entry->e_name_len) > remain) {
- pctx->num = entry->e_name_len;
- problem = PR_1_ATTR_NAME_LEN;
- goto fix;
- }
-
- /* attribute len eats this space */
- remain -= EXT2_EXT_ATTR_SIZE(entry->e_name_len);
-
- /* check value size */
- if (entry->e_value_size == 0 || entry->e_value_size > remain) {
- pctx->num = entry->e_value_size;
- problem = PR_1_ATTR_VALUE_SIZE;
- goto fix;
- }
-
- /* check value placement */
- if (entry->e_value_offs +
- EXT2_XATTR_SIZE(entry->e_value_size) != offs) {
- printf("(entry->e_value_offs + entry->e_value_size: %d, offs: %d)\n", entry->e_value_offs + entry->e_value_size, offs);
- pctx->num = entry->e_value_offs;
- problem = PR_1_ATTR_VALUE_OFFSET;
- goto fix;
- }
-
- /* e_value_block must be 0 in inode's ea */
- if (entry->e_value_block != 0) {
- pctx->num = entry->e_value_block;
- problem = PR_1_ATTR_VALUE_BLOCK;
- goto fix;
- }
-
- /* e_hash must be 0 in inode's ea */
- if (entry->e_hash != 0) {
- pctx->num = entry->e_hash;
- problem = PR_1_ATTR_HASH;
- goto fix;
- }
-
- remain -= entry->e_value_size;
- offs -= EXT2_XATTR_SIZE(entry->e_value_size);
-
- entry = EXT2_EXT_ATTR_NEXT(entry);
- }
-fix:
- /*
- * it seems like a corruption. it's very unlikely we could repair
- * EA(s) in automatic fashion -bzzz
- */
-#if 0
- problem = PR_1_ATTR_HASH;
-#endif
- if (problem == 0 || !fix_problem(ctx, problem, pctx))
- return;
-
- /* simple remove all possible EA(s) */
- *((__u32 *)start) = 0UL;
- e2fsck_write_inode_full(ctx, pctx->ino, (struct ext2_inode *)inode,
- EXT2_INODE_SIZE(sb), "pass1");
-}
-
-static void check_inode_extra_space(e2fsck_t ctx, struct problem_context *pctx)
-{
- struct ext2_super_block *sb = ctx->fs->super;
- struct ext2_inode_large *inode;
- __u32 *eamagic;
- int min, max;
-
- inode = (struct ext2_inode_large *) pctx->inode;
- if (EXT2_INODE_SIZE(sb) == EXT2_GOOD_OLD_INODE_SIZE) {
- /* this isn't large inode. so, nothing to check */
- return;
- }
-
-#if 0
- printf("inode #%u, i_extra_size %d\n", pctx->ino,
- inode->i_extra_isize);
-#endif
- /* i_extra_isize must cover i_extra_isize + i_pad1 at least */
- min = sizeof(inode->i_extra_isize) + sizeof(inode->i_pad1);
- max = EXT2_INODE_SIZE(sb) - EXT2_GOOD_OLD_INODE_SIZE;
- /*
- * For now we will allow i_extra_isize to be 0, but really
- * implementations should never allow i_extra_isize to be 0
- */
- if (inode->i_extra_isize &&
- (inode->i_extra_isize < min || inode->i_extra_isize > max)) {
- if (!fix_problem(ctx, PR_1_EXTRA_ISIZE, pctx))
- return;
- inode->i_extra_isize = min;
- e2fsck_write_inode_full(ctx, pctx->ino, pctx->inode,
- EXT2_INODE_SIZE(sb), "pass1");
- return;
- }
-
- eamagic = (__u32 *) (((char *) inode) + EXT2_GOOD_OLD_INODE_SIZE +
- inode->i_extra_isize);
- if (*eamagic == EXT2_EXT_ATTR_MAGIC) {
- /* it seems inode has an extended attribute(s) in body */
- check_ea_in_inode(ctx, pctx);
- }
-}
-
-void e2fsck_pass1(e2fsck_t ctx)
-{
- int i;
- __u64 max_sizes;
- ext2_filsys fs = ctx->fs;
- ext2_ino_t ino;
- struct ext2_inode *inode;
- ext2_inode_scan scan;
- char *block_buf;
-#ifdef RESOURCE_TRACK
- struct resource_track rtrack;
-#endif
- unsigned char frag, fsize;
- struct problem_context pctx;
- struct scan_callback_struct scan_struct;
- struct ext2_super_block *sb = ctx->fs->super;
- int imagic_fs;
- int busted_fs_time = 0;
- int inode_size;
-
-#ifdef RESOURCE_TRACK
- init_resource_track(&rtrack);
-#endif
- clear_problem_context(&pctx);
-
- if (!(ctx->options & E2F_OPT_PREEN))
- fix_problem(ctx, PR_1_PASS_HEADER, &pctx);
-
- if ((fs->super->s_feature_compat & EXT2_FEATURE_COMPAT_DIR_INDEX) &&
- !(ctx->options & E2F_OPT_NO)) {
- if (ext2fs_u32_list_create(&ctx->dirs_to_hash, 50))
- ctx->dirs_to_hash = 0;
- }
-
-#ifdef MTRACE
- mtrace_print("Pass 1");
-#endif
-
-#define EXT2_BPP(bits) (1ULL << ((bits) - 2))
-
- for (i = EXT2_MIN_BLOCK_LOG_SIZE; i <= EXT2_MAX_BLOCK_LOG_SIZE; i++) {
- max_sizes = EXT2_NDIR_BLOCKS + EXT2_BPP(i);
- max_sizes = max_sizes + EXT2_BPP(i) * EXT2_BPP(i);
- max_sizes = max_sizes + EXT2_BPP(i) * EXT2_BPP(i) * EXT2_BPP(i);
- max_sizes = (max_sizes * (1UL << i)) - 1;
- ext2_max_sizes[i - EXT2_MIN_BLOCK_LOG_SIZE] = max_sizes;
- }
-#undef EXT2_BPP
-
- imagic_fs = (sb->s_feature_compat & EXT2_FEATURE_COMPAT_IMAGIC_INODES);
-
- /*
- * Allocate bitmaps structures
- */
- pctx.errcode = ext2fs_allocate_inode_bitmap(fs, _("in-use inode map"),
- &ctx->inode_used_map);
- if (pctx.errcode) {
- pctx.num = 1;
- fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
- ctx->flags |= E2F_FLAG_ABORT;
- return;
- }
- pctx.errcode = ext2fs_allocate_inode_bitmap(fs,
- _("directory inode map"), &ctx->inode_dir_map);
- if (pctx.errcode) {
- pctx.num = 2;
- fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
- ctx->flags |= E2F_FLAG_ABORT;
- return;
- }
- pctx.errcode = ext2fs_allocate_inode_bitmap(fs,
- _("regular file inode map"), &ctx->inode_reg_map);
- if (pctx.errcode) {
- pctx.num = 6;
- fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
- ctx->flags |= E2F_FLAG_ABORT;
- return;
- }
- pctx.errcode = ext2fs_allocate_block_bitmap(fs, _("in-use block map"),
- &ctx->block_found_map);
- if (pctx.errcode) {
- pctx.num = 1;
- fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, &pctx);
- ctx->flags |= E2F_FLAG_ABORT;
- return;
- }
- pctx.errcode = ext2fs_create_icount2(fs, 0, 0, 0,
- &ctx->inode_link_info);
- if (pctx.errcode) {
- fix_problem(ctx, PR_1_ALLOCATE_ICOUNT, &pctx);
- ctx->flags |= E2F_FLAG_ABORT;
- return;
- }
- inode_size = EXT2_INODE_SIZE(fs->super);
- inode = (struct ext2_inode *)
- e2fsck_allocate_memory(ctx, inode_size, "scratch inode");
-
- inodes_to_process = (struct process_inode_block *)
- e2fsck_allocate_memory(ctx,
- (ctx->process_inode_size *
- sizeof(struct process_inode_block)),
- "array of inodes to process");
- process_inode_count = 0;
-
- pctx.errcode = ext2fs_init_dblist(fs, 0);
- if (pctx.errcode) {
- fix_problem(ctx, PR_1_ALLOCATE_DBCOUNT, &pctx);
- ctx->flags |= E2F_FLAG_ABORT;
- return;
- }
-
- /*
- * If the last orphan field is set, clear it, since the pass1
- * processing will automatically find and clear the orphans.
- * In the future, we may want to try using the last_orphan
- * linked list ourselves, but for now, we clear it so that the
- * ext3 mount code won't get confused.
- */
- if (!(ctx->options & E2F_OPT_READONLY)) {
- if (fs->super->s_last_orphan) {
- fs->super->s_last_orphan = 0;
- ext2fs_mark_super_dirty(fs);
- }
- }
-
- mark_table_blocks(ctx);
- block_buf = (char *) e2fsck_allocate_memory(ctx, fs->blocksize * 3,
- "block interate buffer");
- e2fsck_use_inode_shortcuts(ctx, 1);
- ehandler_operation(_("doing inode scan"));
- pctx.errcode = ext2fs_open_inode_scan(fs, ctx->inode_buffer_blocks,
- &scan);
- if (pctx.errcode) {
- fix_problem(ctx, PR_1_ISCAN_ERROR, &pctx);
- ctx->flags |= E2F_FLAG_ABORT;
- return;
- }
- ext2fs_inode_scan_flags(scan, EXT2_SF_SKIP_MISSING_ITABLE, 0);
- ctx->stashed_inode = inode;
- scan_struct.ctx = ctx;
- scan_struct.block_buf = block_buf;
- ext2fs_set_inode_callback(scan, scan_callback, &scan_struct);
- if (ctx->progress)
- if ((ctx->progress)(ctx, 1, 0, ctx->fs->group_desc_count))
- return;
- if (fs->super->s_wtime < fs->super->s_inodes_count)
- busted_fs_time = 1;
-
- while (1) {
- pctx.errcode = ext2fs_get_next_inode_full(scan, &ino,
- inode, inode_size);
- if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
- return;
- if (pctx.errcode == EXT2_ET_BAD_BLOCK_IN_INODE_TABLE) {
- if (!ctx->inode_bb_map)
- alloc_bb_map(ctx);
- ext2fs_mark_inode_bitmap(ctx->inode_bb_map, ino);
- ext2fs_mark_inode_bitmap(ctx->inode_used_map, ino);
- continue;
- }
- if (pctx.errcode) {
- fix_problem(ctx, PR_1_ISCAN_ERROR, &pctx);
- ctx->flags |= E2F_FLAG_ABORT;
- return;
- }
- if (!ino)
- break;
- pctx.ino = ino;
- pctx.inode = inode;
- ctx->stashed_ino = ino;
- if (inode->i_links_count) {
- pctx.errcode = ext2fs_icount_store(ctx->inode_link_info,
- ino, inode->i_links_count);
- if (pctx.errcode) {
- pctx.num = inode->i_links_count;
- fix_problem(ctx, PR_1_ICOUNT_STORE, &pctx);
- ctx->flags |= E2F_FLAG_ABORT;
- return;
- }
- }
- if (ino == EXT2_BAD_INO) {
- struct process_block_struct pb;
-
- pctx.errcode = ext2fs_copy_bitmap(ctx->block_found_map,
- &pb.fs_meta_blocks);
- if (pctx.errcode) {
- pctx.num = 4;
- fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, &pctx);
- ctx->flags |= E2F_FLAG_ABORT;
- return;
- }
- pb.ino = EXT2_BAD_INO;
- pb.num_blocks = pb.last_block = 0;
- pb.num_illegal_blocks = 0;
- pb.suppress = 0; pb.clear = 0; pb.is_dir = 0;
- pb.is_reg = 0; pb.fragmented = 0; pb.bbcheck = 0;
- pb.inode = inode;
- pb.pctx = &pctx;
- pb.ctx = ctx;
- pctx.errcode = ext2fs_block_iterate2(fs, ino, 0,
- block_buf, process_bad_block, &pb);
- ext2fs_free_block_bitmap(pb.fs_meta_blocks);
- if (pctx.errcode) {
- fix_problem(ctx, PR_1_BLOCK_ITERATE, &pctx);
- ctx->flags |= E2F_FLAG_ABORT;
- return;
- }
- if (pb.bbcheck)
- if (!fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK_PROMPT, &pctx)) {
- ctx->flags |= E2F_FLAG_ABORT;
- return;
- }
- ext2fs_mark_inode_bitmap(ctx->inode_used_map, ino);
- clear_problem_context(&pctx);
- continue;
- } else if (ino == EXT2_ROOT_INO) {
- /*
- * Make sure the root inode is a directory; if
- * not, offer to clear it. It will be
- * regnerated in pass #3.
- */
- if (!LINUX_S_ISDIR(inode->i_mode)) {
- if (fix_problem(ctx, PR_1_ROOT_NO_DIR, &pctx)) {
- inode->i_dtime = time(0);
- inode->i_links_count = 0;
- ext2fs_icount_store(ctx->inode_link_info,
- ino, 0);
- e2fsck_write_inode(ctx, ino, inode,
- "pass1");
- }
-
- }
- /*
- * If dtime is set, offer to clear it. mke2fs
- * version 0.2b created filesystems with the
- * dtime field set for the root and lost+found
- * directories. We won't worry about
- * /lost+found, since that can be regenerated
- * easily. But we will fix the root directory
- * as a special case.
- */
- if (inode->i_dtime && inode->i_links_count) {
- if (fix_problem(ctx, PR_1_ROOT_DTIME, &pctx)) {
- inode->i_dtime = 0;
- e2fsck_write_inode(ctx, ino, inode,
- "pass1");
- }
- }
- } else if (ino == EXT2_JOURNAL_INO) {
- ext2fs_mark_inode_bitmap(ctx->inode_used_map, ino);
- if (fs->super->s_journal_inum == EXT2_JOURNAL_INO) {
- if (!LINUX_S_ISREG(inode->i_mode) &&
- fix_problem(ctx, PR_1_JOURNAL_BAD_MODE,
- &pctx)) {
- inode->i_mode = LINUX_S_IFREG;
- e2fsck_write_inode(ctx, ino, inode,
- "pass1");
- }
- check_blocks(ctx, &pctx, block_buf);
- continue;
- }
- if ((inode->i_links_count || inode->i_blocks ||
- inode->i_blocks || inode->i_block[0]) &&
- fix_problem(ctx, PR_1_JOURNAL_INODE_NOT_CLEAR,
- &pctx)) {
- memset(inode, 0, inode_size);
- ext2fs_icount_store(ctx->inode_link_info,
- ino, 0);
- e2fsck_write_inode_full(ctx, ino, inode,
- inode_size, "pass1");
- }
- } else if (ino < EXT2_FIRST_INODE(fs->super)) {
- int problem = 0;
-
- ext2fs_mark_inode_bitmap(ctx->inode_used_map, ino);
- if (ino == EXT2_BOOT_LOADER_INO) {
- if (LINUX_S_ISDIR(inode->i_mode))
- problem = PR_1_RESERVED_BAD_MODE;
- } else if (ino == EXT2_RESIZE_INO) {
- if (inode->i_mode &&
- !LINUX_S_ISREG(inode->i_mode))
- problem = PR_1_RESERVED_BAD_MODE;
- } else {
- if (inode->i_mode != 0)
- problem = PR_1_RESERVED_BAD_MODE;
- }
- if (problem) {
- if (fix_problem(ctx, problem, &pctx)) {
- inode->i_mode = 0;
- e2fsck_write_inode(ctx, ino, inode,
- "pass1");
- }
- }
- check_blocks(ctx, &pctx, block_buf);
- continue;
- }
- /*
- * Check for inodes who might have been part of the
- * orphaned list linked list. They should have gotten
- * dealt with by now, unless the list had somehow been
- * corrupted.
- *
- * FIXME: In the future, inodes which are still in use
- * (and which are therefore) pending truncation should
- * be handled specially. Right now we just clear the
- * dtime field, and the normal e2fsck handling of
- * inodes where i_size and the inode blocks are
- * inconsistent is to fix i_size, instead of releasing
- * the extra blocks. This won't catch the inodes that
- * was at the end of the orphan list, but it's better
- * than nothing. The right answer is that there
- * shouldn't be any bugs in the orphan list handling. :-)
- */
- if (inode->i_dtime && !busted_fs_time &&
- inode->i_dtime < ctx->fs->super->s_inodes_count) {
- if (fix_problem(ctx, PR_1_LOW_DTIME, &pctx)) {
- inode->i_dtime = inode->i_links_count ?
- 0 : time(0);
- e2fsck_write_inode(ctx, ino, inode,
- "pass1");
- }
- }
-
- /*
- * This code assumes that deleted inodes have
- * i_links_count set to 0.
- */
- if (!inode->i_links_count) {
- if (!inode->i_dtime && inode->i_mode) {
- if (fix_problem(ctx,
- PR_1_ZERO_DTIME, &pctx)) {
- inode->i_dtime = time(0);
- e2fsck_write_inode(ctx, ino, inode,
- "pass1");
- }
- }
- continue;
- }
- /*
- * n.b. 0.3c ext2fs code didn't clear i_links_count for
- * deleted files. Oops.
- *
- * Since all new ext2 implementations get this right,
- * we now assume that the case of non-zero
- * i_links_count and non-zero dtime means that we
- * should keep the file, not delete it.
- *
- */
- if (inode->i_dtime) {
- if (fix_problem(ctx, PR_1_SET_DTIME, &pctx)) {
- inode->i_dtime = 0;
- e2fsck_write_inode(ctx, ino, inode, "pass1");
- }
- }
-
- ext2fs_mark_inode_bitmap(ctx->inode_used_map, ino);
- switch (fs->super->s_creator_os) {
- case EXT2_OS_LINUX:
- frag = inode->osd2.linux2.l_i_frag;
- fsize = inode->osd2.linux2.l_i_fsize;
- break;
- case EXT2_OS_HURD:
- frag = inode->osd2.hurd2.h_i_frag;
- fsize = inode->osd2.hurd2.h_i_fsize;
- break;
- case EXT2_OS_MASIX:
- frag = inode->osd2.masix2.m_i_frag;
- fsize = inode->osd2.masix2.m_i_fsize;
- break;
- default:
- frag = fsize = 0;
- }
-
- if (inode->i_faddr || frag || fsize ||
- (LINUX_S_ISDIR(inode->i_mode) && inode->i_dir_acl))
- mark_inode_bad(ctx, ino);
- if (inode->i_flags & EXT2_IMAGIC_FL) {
- if (imagic_fs) {
- if (!ctx->inode_imagic_map)
- alloc_imagic_map(ctx);
- ext2fs_mark_inode_bitmap(ctx->inode_imagic_map,
- ino);
- } else {
- if (fix_problem(ctx, PR_1_SET_IMAGIC, &pctx)) {
- inode->i_flags &= ~EXT2_IMAGIC_FL;
- e2fsck_write_inode(ctx, ino,
- inode, "pass1");
- }
- }
- }
-
- check_inode_extra_space(ctx, &pctx);
-
- if (LINUX_S_ISDIR(inode->i_mode)) {
- ext2fs_mark_inode_bitmap(ctx->inode_dir_map, ino);
- e2fsck_add_dir_info(ctx, ino, 0);
- ctx->fs_directory_count++;
- } else if (LINUX_S_ISREG (inode->i_mode)) {
- ext2fs_mark_inode_bitmap(ctx->inode_reg_map, ino);
- ctx->fs_regular_count++;
- } else if (LINUX_S_ISCHR (inode->i_mode) &&
- e2fsck_pass1_check_device_inode(fs, inode)) {
- check_immutable(ctx, &pctx);
- check_size(ctx, &pctx);
- ctx->fs_chardev_count++;
- } else if (LINUX_S_ISBLK (inode->i_mode) &&
- e2fsck_pass1_check_device_inode(fs, inode)) {
- check_immutable(ctx, &pctx);
- check_size(ctx, &pctx);
- ctx->fs_blockdev_count++;
- } else if (LINUX_S_ISLNK (inode->i_mode) &&
- e2fsck_pass1_check_symlink(fs, inode, block_buf)) {
- check_immutable(ctx, &pctx);
- ctx->fs_symlinks_count++;
- if (ext2fs_inode_data_blocks(fs, inode) == 0) {
- ctx->fs_fast_symlinks_count++;
- check_blocks(ctx, &pctx, block_buf);
- continue;
- }
- }
- else if (LINUX_S_ISFIFO (inode->i_mode) &&
- e2fsck_pass1_check_device_inode(fs, inode)) {
- check_immutable(ctx, &pctx);
- check_size(ctx, &pctx);
- ctx->fs_fifo_count++;
- } else if ((LINUX_S_ISSOCK (inode->i_mode)) &&
- e2fsck_pass1_check_device_inode(fs, inode)) {
- check_immutable(ctx, &pctx);
- check_size(ctx, &pctx);
- ctx->fs_sockets_count++;
- } else
- mark_inode_bad(ctx, ino);
- if (inode->i_block[EXT2_IND_BLOCK])
- ctx->fs_ind_count++;
- if (inode->i_block[EXT2_DIND_BLOCK])
- ctx->fs_dind_count++;
- if (inode->i_block[EXT2_TIND_BLOCK])
- ctx->fs_tind_count++;
- if (inode->i_block[EXT2_IND_BLOCK] ||
- inode->i_block[EXT2_DIND_BLOCK] ||
- inode->i_block[EXT2_TIND_BLOCK] ||
- inode->i_file_acl) {
- inodes_to_process[process_inode_count].ino = ino;
- inodes_to_process[process_inode_count].inode = *inode;
- process_inode_count++;
- } else
- check_blocks(ctx, &pctx, block_buf);
-
- if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
- return;
-
- if (process_inode_count >= ctx->process_inode_size) {
- process_inodes(ctx, block_buf);
-
- if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
- return;
- }
- }
- process_inodes(ctx, block_buf);
- ext2fs_close_inode_scan(scan);
- ehandler_operation(0);
-
- /*
- * If any extended attribute blocks' reference counts need to
- * be adjusted, either up (ctx->refcount_extra), or down
- * (ctx->refcount), then fix them.
- */
- if (ctx->refcount) {
- adjust_extattr_refcount(ctx, ctx->refcount, block_buf, -1);
- ea_refcount_free(ctx->refcount);
- ctx->refcount = 0;
- }
- if (ctx->refcount_extra) {
- adjust_extattr_refcount(ctx, ctx->refcount_extra,
- block_buf, +1);
- ea_refcount_free(ctx->refcount_extra);
- ctx->refcount_extra = 0;
- }
-
- if (ctx->invalid_bitmaps)
- handle_fs_bad_blocks(ctx);
-
- /* We don't need the block_ea_map any more */
- if (ctx->block_ea_map) {
- ext2fs_free_block_bitmap(ctx->block_ea_map);
- ctx->block_ea_map = 0;
- }
-
- if (ctx->flags & E2F_FLAG_RESIZE_INODE) {
- ext2fs_block_bitmap save_bmap;
-
- save_bmap = fs->block_map;
- fs->block_map = ctx->block_found_map;
- clear_problem_context(&pctx);
- pctx.errcode = ext2fs_create_resize_inode(fs);
- if (pctx.errcode) {
- fix_problem(ctx, PR_1_RESIZE_INODE_CREATE, &pctx);
- /* Should never get here */
- ctx->flags |= E2F_FLAG_ABORT;
- return;
- }
- fs->block_map = save_bmap;
- ctx->flags &= ~E2F_FLAG_RESIZE_INODE;
- }
-
- if (ctx->flags & E2F_FLAG_RESTART) {
- /*
- * Only the master copy of the superblock and block
- * group descriptors are going to be written during a
- * restart, so set the superblock to be used to be the
- * master superblock.
- */
- ctx->use_superblock = 0;
- unwind_pass1(fs);
- goto endit;
- }
-
- if (ctx->block_dup_map) {
- if (ctx->options & E2F_OPT_PREEN) {
- clear_problem_context(&pctx);
- fix_problem(ctx, PR_1_DUP_BLOCKS_PREENSTOP, &pctx);
- }
- e2fsck_pass1_dupblocks(ctx, block_buf);
- }
- ext2fs_free_mem(&inodes_to_process);
-endit:
- e2fsck_use_inode_shortcuts(ctx, 0);
-
- ext2fs_free_mem(&block_buf);
- ext2fs_free_mem(&inode);
-
-#ifdef RESOURCE_TRACK
- if (ctx->options & E2F_OPT_TIME2) {
- e2fsck_clear_progbar(ctx);
- print_resource_track(_("Pass 1"), &rtrack);
- }
-#endif
-}
-
-/*
- * When the inode_scan routines call this callback at the end of the
- * glock group, call process_inodes.
- */
-static errcode_t scan_callback(ext2_filsys fs,
- ext2_inode_scan scan EXT2FS_ATTR((unused)),
- dgrp_t group, void * priv_data)
-{
- struct scan_callback_struct *scan_struct;
- e2fsck_t ctx;
-
- scan_struct = (struct scan_callback_struct *) priv_data;
- ctx = scan_struct->ctx;
-
- process_inodes((e2fsck_t) fs->priv_data, scan_struct->block_buf);
-
- if (ctx->progress)
- if ((ctx->progress)(ctx, 1, group+1,
- ctx->fs->group_desc_count))
- return EXT2_ET_CANCEL_REQUESTED;
-
- return 0;
-}
-
-/*
- * Process the inodes in the "inodes to process" list.
- */
-static void process_inodes(e2fsck_t ctx, char *block_buf)
-{
- int i;
- struct ext2_inode *old_stashed_inode;
- ext2_ino_t old_stashed_ino;
- const char *old_operation;
- char buf[80];
- struct problem_context pctx;
-
-#if 0
- printf("begin process_inodes: ");
-#endif
- if (process_inode_count == 0)
- return;
- old_operation = ehandler_operation(0);
- old_stashed_inode = ctx->stashed_inode;
- old_stashed_ino = ctx->stashed_ino;
- qsort(inodes_to_process, process_inode_count,
- sizeof(struct process_inode_block), process_inode_cmp);
- clear_problem_context(&pctx);
- for (i=0; i < process_inode_count; i++) {
- pctx.inode = ctx->stashed_inode = &inodes_to_process[i].inode;
- pctx.ino = ctx->stashed_ino = inodes_to_process[i].ino;
-
-#if 0
- printf("%u ", pctx.ino);
-#endif
- sprintf(buf, _("reading indirect blocks of inode %u"),
- pctx.ino);
- ehandler_operation(buf);
- check_blocks(ctx, &pctx, block_buf);
- if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
- break;
- }
- ctx->stashed_inode = old_stashed_inode;
- ctx->stashed_ino = old_stashed_ino;
- process_inode_count = 0;
-#if 0
- printf("end process inodes\n");
-#endif
- ehandler_operation(old_operation);
-}
-
-static EXT2_QSORT_TYPE process_inode_cmp(const void *a, const void *b)
-{
- const struct process_inode_block *ib_a =
- (const struct process_inode_block *) a;
- const struct process_inode_block *ib_b =
- (const struct process_inode_block *) b;
- int ret;
-
- ret = (ib_a->inode.i_block[EXT2_IND_BLOCK] -
- ib_b->inode.i_block[EXT2_IND_BLOCK]);
- if (ret == 0)
- ret = ib_a->inode.i_file_acl - ib_b->inode.i_file_acl;
- return ret;
-}
-
-/*
- * Mark an inode as being bad in some what
- */
-static void mark_inode_bad(e2fsck_t ctx, ino_t ino)
-{
- struct problem_context pctx;
-
- if (!ctx->inode_bad_map) {
- clear_problem_context(&pctx);
-
- pctx.errcode = ext2fs_allocate_inode_bitmap(ctx->fs,
- _("bad inode map"), &ctx->inode_bad_map);
- if (pctx.errcode) {
- pctx.num = 3;
- fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
- /* Should never get here */
- ctx->flags |= E2F_FLAG_ABORT;
- return;
- }
- }
- ext2fs_mark_inode_bitmap(ctx->inode_bad_map, ino);
-}
-
-
-/*
- * This procedure will allocate the inode "bb" (badblock) map table
- */
-static void alloc_bb_map(e2fsck_t ctx)
-{
- struct problem_context pctx;
-
- clear_problem_context(&pctx);
- pctx.errcode = ext2fs_allocate_inode_bitmap(ctx->fs,
- _("inode in bad block map"),
- &ctx->inode_bb_map);
- if (pctx.errcode) {
- pctx.num = 4;
- fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
- /* Should never get here */
- ctx->flags |= E2F_FLAG_ABORT;
- return;
- }
-}
-
-/*
- * This procedure will allocate the inode imagic table
- */
-static void alloc_imagic_map(e2fsck_t ctx)
-{
- struct problem_context pctx;
-
- clear_problem_context(&pctx);
- pctx.errcode = ext2fs_allocate_inode_bitmap(ctx->fs,
- _("imagic inode map"),
- &ctx->inode_imagic_map);
- if (pctx.errcode) {
- pctx.num = 5;
- fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
- /* Should never get here */
- ctx->flags |= E2F_FLAG_ABORT;
- return;
- }
-}
-
-/*
- * Marks a block as in use, setting the dup_map if it's been set
- * already. Called by process_block and process_bad_block.
- *
- * WARNING: Assumes checks have already been done to make sure block
- * is valid. This is true in both process_block and process_bad_block.
- */
-static _INLINE_ void mark_block_used(e2fsck_t ctx, blk_t block)
-{
- struct problem_context pctx;
-
- clear_problem_context(&pctx);
-
- if (ext2fs_fast_test_block_bitmap(ctx->block_found_map, block)) {
- if (!ctx->block_dup_map) {
- pctx.errcode = ext2fs_allocate_block_bitmap(ctx->fs,
- _("multiply claimed block map"),
- &ctx->block_dup_map);
- if (pctx.errcode) {
- pctx.num = 3;
- fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR,
- &pctx);
- /* Should never get here */
- ctx->flags |= E2F_FLAG_ABORT;
- return;
- }
- }
- ext2fs_fast_mark_block_bitmap(ctx->block_dup_map, block);
- } else {
- ext2fs_fast_mark_block_bitmap(ctx->block_found_map, block);
- }
-}
-
-/*
- * Adjust the extended attribute block's reference counts at the end
- * of pass 1, either by subtracting out references for EA blocks that
- * are still referenced in ctx->refcount, or by adding references for
- * EA blocks that had extra references as accounted for in
- * ctx->refcount_extra.
- */
-static void adjust_extattr_refcount(e2fsck_t ctx, ext2_refcount_t refcount,
- char *block_buf, int adjust_sign)
-{
- struct ext2_ext_attr_header *header;
- struct problem_context pctx;
- ext2_filsys fs = ctx->fs;
- blk_t blk;
- __u32 should_be;
- int count;
-
- clear_problem_context(&pctx);
-
- ea_refcount_intr_begin(refcount);
- while (1) {
- if ((blk = ea_refcount_intr_next(refcount, &count)) == 0)
- break;
- pctx.blk = blk;
- pctx.errcode = ext2fs_read_ext_attr(fs, blk, block_buf);
- if (pctx.errcode) {
- fix_problem(ctx, PR_1_EXTATTR_READ_ABORT, &pctx);
- return;
- }
- header = (struct ext2_ext_attr_header *) block_buf;
- pctx.blkcount = header->h_refcount;
- should_be = header->h_refcount + adjust_sign * count;
- pctx.num = should_be;
- if (fix_problem(ctx, PR_1_EXTATTR_REFCOUNT, &pctx)) {
- header->h_refcount = should_be;
- pctx.errcode = ext2fs_write_ext_attr(fs, blk,
- block_buf);
- if (pctx.errcode) {
- fix_problem(ctx, PR_1_EXTATTR_WRITE, &pctx);
- continue;
- }
- }
- }
-}
-
-/*
- * Handle processing the extended attribute blocks
- */
-static int check_ext_attr(e2fsck_t ctx, struct problem_context *pctx,
- char *block_buf)
-{
- ext2_filsys fs = ctx->fs;
- ext2_ino_t ino = pctx->ino;
- struct ext2_inode *inode = pctx->inode;
- blk_t blk;
- char * end;
- struct ext2_ext_attr_header *header;
- struct ext2_ext_attr_entry *entry;
- int count;
- region_t region;
-
- blk = inode->i_file_acl;
- if (blk == 0)
- return 0;
-
- /*
- * If the Extended attribute flag isn't set, then a non-zero
- * file acl means that the inode is corrupted.
- *
- * Or if the extended attribute block is an invalid block,
- * then the inode is also corrupted.
- */
- if (!(fs->super->s_feature_compat & EXT2_FEATURE_COMPAT_EXT_ATTR) ||
- (blk < fs->super->s_first_data_block) ||
- (blk >= fs->super->s_blocks_count)) {
- mark_inode_bad(ctx, ino);
- return 0;
- }
-
- /* If ea bitmap hasn't been allocated, create it */
- if (!ctx->block_ea_map) {
- pctx->errcode = ext2fs_allocate_block_bitmap(fs,
- _("ext attr block map"),
- &ctx->block_ea_map);
- if (pctx->errcode) {
- pctx->num = 2;
- fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, pctx);
- ctx->flags |= E2F_FLAG_ABORT;
- return 0;
- }
- }
-
- /* Create the EA refcount structure if necessary */
- if (!ctx->refcount) {
- pctx->errcode = ea_refcount_create(0, &ctx->refcount);
- if (pctx->errcode) {
- pctx->num = 1;
- fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
- ctx->flags |= E2F_FLAG_ABORT;
- return 0;
- }
- }
-
-#if 0
- /* Debugging text */
- printf("Inode %u has EA block %u\n", ino, blk);
-#endif
-
- /* Have we seen this EA block before? */
- if (ext2fs_fast_test_block_bitmap(ctx->block_ea_map, blk)) {
- if (ea_refcount_decrement(ctx->refcount, blk, 0) == 0)
- return 1;
- /* Ooops, this EA was referenced more than it stated */
- if (!ctx->refcount_extra) {
- pctx->errcode = ea_refcount_create(0,
- &ctx->refcount_extra);
- if (pctx->errcode) {
- pctx->num = 2;
- fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
- ctx->flags |= E2F_FLAG_ABORT;
- return 0;
- }
- }
- ea_refcount_increment(ctx->refcount_extra, blk, 0);
- return 1;
- }
-
- /*
- * OK, we haven't seen this EA block yet. So we need to
- * validate it
- */
- pctx->blk = blk;
- pctx->errcode = ext2fs_read_ext_attr(fs, blk, block_buf);
- if (pctx->errcode && fix_problem(ctx, PR_1_READ_EA_BLOCK, pctx))
- goto clear_extattr;
- header = (struct ext2_ext_attr_header *) block_buf;
- pctx->blk = inode->i_file_acl;
- if (((ctx->ext_attr_ver == 1) &&
- (header->h_magic != EXT2_EXT_ATTR_MAGIC_v1)) ||
- ((ctx->ext_attr_ver == 2) &&
- (header->h_magic != EXT2_EXT_ATTR_MAGIC))) {
- if (fix_problem(ctx, PR_1_BAD_EA_BLOCK, pctx))
- goto clear_extattr;
- }
-
- if (header->h_blocks != 1) {
- if (fix_problem(ctx, PR_1_EA_MULTI_BLOCK, pctx))
- goto clear_extattr;
- }
-
- region = region_create(0, fs->blocksize);
- if (!region) {
- fix_problem(ctx, PR_1_EA_ALLOC_REGION, pctx);
- ctx->flags |= E2F_FLAG_ABORT;
- return 0;
- }
- if (region_allocate(region, 0, sizeof(struct ext2_ext_attr_header))) {
- if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
- goto clear_extattr;
- }
-
- entry = (struct ext2_ext_attr_entry *)(header+1);
- end = block_buf + fs->blocksize;
- while ((char *)entry < end && *(__u32 *)entry) {
- if (region_allocate(region, (char *)entry - (char *)header,
- EXT2_EXT_ATTR_LEN(entry->e_name_len))) {
- if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
- goto clear_extattr;
- }
- if ((ctx->ext_attr_ver == 1 &&
- (entry->e_name_len == 0 || entry->e_name_index != 0)) ||
- (ctx->ext_attr_ver == 2 &&
- entry->e_name_index == 0)) {
- if (fix_problem(ctx, PR_1_EA_BAD_NAME, pctx))
- goto clear_extattr;
- }
- if (entry->e_value_block != 0) {
- if (fix_problem(ctx, PR_1_EA_BAD_VALUE, pctx))
- goto clear_extattr;
- }
- if (entry->e_value_size &&
- region_allocate(region, entry->e_value_offs,
- EXT2_EXT_ATTR_SIZE(entry->e_value_size))) {
- if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
- goto clear_extattr;
- }
- entry = EXT2_EXT_ATTR_NEXT(entry);
- }
- if (region_allocate(region, (char *)entry - (char *)header, 4)) {
- if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
- goto clear_extattr;
- }
- region_free(region);
-
- count = header->h_refcount - 1;
- if (count)
- ea_refcount_store(ctx->refcount, blk, count);
- mark_block_used(ctx, blk);
- ext2fs_fast_mark_block_bitmap(ctx->block_ea_map, blk);
-
- return 1;
-
-clear_extattr:
- inode->i_file_acl = 0;
- e2fsck_write_inode(ctx, ino, inode, "check_ext_attr");
- return 0;
-}
-
-/* Returns 1 if bad htree, 0 if OK */
-static int handle_htree(e2fsck_t ctx, struct problem_context *pctx,
- ext2_ino_t ino EXT2FS_ATTR((unused)),
- struct ext2_inode *inode,
- char *block_buf)
-{
- struct ext2_dx_root_info *root;
- ext2_filsys fs = ctx->fs;
- errcode_t retval;
- blk_t blk;
-
- if ((!LINUX_S_ISDIR(inode->i_mode) &&
- fix_problem(ctx, PR_1_HTREE_NODIR, pctx)) ||
- (!(fs->super->s_feature_compat & EXT2_FEATURE_COMPAT_DIR_INDEX) &&
- fix_problem(ctx, PR_1_HTREE_SET, pctx)))
- return 1;
-
- blk = inode->i_block[0];
- if (((blk == 0) ||
- (blk < fs->super->s_first_data_block) ||
- (blk >= fs->super->s_blocks_count)) &&
- fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
- return 1;
-
- retval = io_channel_read_blk(fs->io, blk, 1, block_buf);
- if (retval && fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
- return 1;
-
- /* XXX should check that beginning matches a directory */
- root = (struct ext2_dx_root_info *) (block_buf + 24);
-
- if ((root->reserved_zero || root->info_length < 8) &&
- fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
- return 1;
-
- pctx->num = root->hash_version;
- if ((root->hash_version != EXT2_HASH_LEGACY) &&
- (root->hash_version != EXT2_HASH_HALF_MD4) &&
- (root->hash_version != EXT2_HASH_TEA) &&
- fix_problem(ctx, PR_1_HTREE_HASHV, pctx))
- return 1;
-
- if ((root->unused_flags & EXT2_HASH_FLAG_INCOMPAT) &&
- fix_problem(ctx, PR_1_HTREE_INCOMPAT, pctx))
- return 1;
-
- pctx->num = root->indirect_levels;
- if ((root->indirect_levels > 1) &&
- fix_problem(ctx, PR_1_HTREE_DEPTH, pctx))
- return 1;
-
- return 0;
-}
-
-/*
- * This subroutine is called on each inode to account for all of the
- * blocks used by that inode.
- */
-static void check_blocks(e2fsck_t ctx, struct problem_context *pctx,
- char *block_buf)
-{
- ext2_filsys fs = ctx->fs;
- struct process_block_struct pb;
- ext2_ino_t ino = pctx->ino;
- struct ext2_inode *inode = pctx->inode;
- int bad_size = 0;
- int dirty_inode = 0;
- __u64 size;
-
- pb.ino = ino;
- pb.num_blocks = 0;
- pb.last_block = -1;
- pb.num_illegal_blocks = 0;
- pb.suppress = 0; pb.clear = 0;
- pb.fragmented = 0;
- pb.compressed = 0;
- pb.previous_block = 0;
- pb.is_dir = LINUX_S_ISDIR(inode->i_mode);
- pb.is_reg = LINUX_S_ISREG(inode->i_mode);
- pb.max_blocks = 1 << (31 - fs->super->s_log_block_size);
- pb.inode = inode;
- pb.pctx = pctx;
- pb.ctx = ctx;
- pctx->ino = ino;
- pctx->errcode = 0;
-
- if (inode->i_flags & EXT2_COMPRBLK_FL) {
- if (fs->super->s_feature_incompat &
- EXT2_FEATURE_INCOMPAT_COMPRESSION)
- pb.compressed = 1;
- else {
- if (fix_problem(ctx, PR_1_COMPR_SET, pctx)) {
- inode->i_flags &= ~EXT2_COMPRBLK_FL;
- dirty_inode++;
- }
- }
- }
-
- if (inode->i_file_acl && check_ext_attr(ctx, pctx, block_buf))
- pb.num_blocks++;
-
- if (ext2fs_inode_has_valid_blocks(inode))
- pctx->errcode = ext2fs_block_iterate2(fs, ino,
- pb.is_dir ? BLOCK_FLAG_HOLE : 0,
- block_buf, process_block, &pb);
- end_problem_latch(ctx, PR_LATCH_BLOCK);
- end_problem_latch(ctx, PR_LATCH_TOOBIG);
- if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
- goto out;
- if (pctx->errcode)
- fix_problem(ctx, PR_1_BLOCK_ITERATE, pctx);
-
- if (pb.fragmented && pb.num_blocks < fs->super->s_blocks_per_group)
- ctx->fs_fragmented++;
-
- if (pb.clear) {
- inode->i_links_count = 0;
- ext2fs_icount_store(ctx->inode_link_info, ino, 0);
- inode->i_dtime = time(0);
- dirty_inode++;
- ext2fs_unmark_inode_bitmap(ctx->inode_dir_map, ino);
- ext2fs_unmark_inode_bitmap(ctx->inode_reg_map, ino);
- ext2fs_unmark_inode_bitmap(ctx->inode_used_map, ino);
- /*
- * The inode was probably partially accounted for
- * before processing was aborted, so we need to
- * restart the pass 1 scan.
- */
- ctx->flags |= E2F_FLAG_RESTART;
- goto out;
- }
-
- if (inode->i_flags & EXT2_INDEX_FL) {
- if (handle_htree(ctx, pctx, ino, inode, block_buf)) {
- inode->i_flags &= ~EXT2_INDEX_FL;
- dirty_inode++;
- } else {
-#ifdef ENABLE_HTREE
- e2fsck_add_dx_dir(ctx, ino, pb.last_block+1);
-#endif
- }
- }
- if (ctx->dirs_to_hash && pb.is_dir &&
- !(inode->i_flags & EXT2_INDEX_FL) &&
- ((inode->i_size / fs->blocksize) >= 3))
- ext2fs_u32_list_add(ctx->dirs_to_hash, ino);
-
- if (!pb.num_blocks && pb.is_dir) {
- if (fix_problem(ctx, PR_1_ZERO_LENGTH_DIR, pctx)) {
- inode->i_links_count = 0;
- ext2fs_icount_store(ctx->inode_link_info, ino, 0);
- inode->i_dtime = time(0);
- dirty_inode++;
- ext2fs_unmark_inode_bitmap(ctx->inode_dir_map, ino);
- ext2fs_unmark_inode_bitmap(ctx->inode_reg_map, ino);
- ext2fs_unmark_inode_bitmap(ctx->inode_used_map, ino);
- ctx->fs_directory_count--;
- goto out;
- }
- }
-
- pb.num_blocks *= (fs->blocksize / 512);
-#if 0
- printf("inode %u, i_size = %lu, last_block = %lld, i_blocks=%lu, num_blocks = %lu\n",
- ino, inode->i_size, pb.last_block, inode->i_blocks,
- pb.num_blocks);
-#endif
- if (pb.is_dir) {
- int nblock = inode->i_size >> EXT2_BLOCK_SIZE_BITS(fs->super);
- if (nblock > (pb.last_block + 1))
- bad_size = 1;
- else if (nblock < (pb.last_block + 1)) {
- if (((pb.last_block + 1) - nblock) >
- fs->super->s_prealloc_dir_blocks)
- bad_size = 2;
- }
- } else {
- size = EXT2_I_SIZE(inode);
- if ((pb.last_block >= 0) &&
- (size < (__u64) pb.last_block * fs->blocksize))
- bad_size = 3;
- else if (size > ext2_max_sizes[fs->super->s_log_block_size])
- bad_size = 4;
- }
- /* i_size for symlinks is checked elsewhere */
- if (bad_size && !LINUX_S_ISLNK(inode->i_mode)) {
- pctx->num = (pb.last_block+1) * fs->blocksize;
- if (fix_problem(ctx, PR_1_BAD_I_SIZE, pctx)) {
- inode->i_size = pctx->num;
- if (!LINUX_S_ISDIR(inode->i_mode))
- inode->i_size_high = pctx->num >> 32;
- dirty_inode++;
- }
- pctx->num = 0;
- }
- if (LINUX_S_ISREG(inode->i_mode) &&
- (inode->i_size_high || inode->i_size & 0x80000000UL))
- ctx->large_files++;
- if (pb.num_blocks != inode->i_blocks) {
- pctx->num = pb.num_blocks;
- if (fix_problem(ctx, PR_1_BAD_I_BLOCKS, pctx)) {
- inode->i_blocks = pb.num_blocks;
- dirty_inode++;
- }
- pctx->num = 0;
- }
-out:
- if (dirty_inode)
- e2fsck_write_inode(ctx, ino, inode, "check_blocks");
-}
-
-#if 0
-/*
- * Helper function called by process block when an illegal block is
- * found. It returns a description about why the block is illegal
- */
-static char *describe_illegal_block(ext2_filsys fs, blk_t block)
-{
- blk_t super;
- int i;
- static char problem[80];
-
- super = fs->super->s_first_data_block;
- strcpy(problem, "PROGRAMMING ERROR: Unknown reason for illegal block");
- if (block < super) {
- sprintf(problem, "< FIRSTBLOCK (%u)", super);
- return(problem);
- } else if (block >= fs->super->s_blocks_count) {
- sprintf(problem, "> BLOCKS (%u)", fs->super->s_blocks_count);
- return(problem);
- }
- for (i = 0; i < fs->group_desc_count; i++) {
- if (block == super) {
- sprintf(problem, "is the superblock in group %d", i);
- break;
- }
- if (block > super &&
- block <= (super + fs->desc_blocks)) {
- sprintf(problem, "is in the group descriptors "
- "of group %d", i);
- break;
- }
- if (block == fs->group_desc[i].bg_block_bitmap) {
- sprintf(problem, "is the block bitmap of group %d", i);
- break;
- }
- if (block == fs->group_desc[i].bg_inode_bitmap) {
- sprintf(problem, "is the inode bitmap of group %d", i);
- break;
- }
- if (block >= fs->group_desc[i].bg_inode_table &&
- (block < fs->group_desc[i].bg_inode_table
- + fs->inode_blocks_per_group)) {
- sprintf(problem, "is in the inode table of group %d",
- i);
- break;
- }
- super += fs->super->s_blocks_per_group;
- }
- return(problem);
-}
-#endif
-
-/*
- * This is a helper function for check_blocks().
- */
-static int process_block(ext2_filsys fs,
- blk_t *block_nr,
- e2_blkcnt_t blockcnt,
- blk_t ref_block EXT2FS_ATTR((unused)),
- int ref_offset EXT2FS_ATTR((unused)),
- void *priv_data)
-{
- struct process_block_struct *p;
- struct problem_context *pctx;
- blk_t blk = *block_nr;
- int ret_code = 0;
- int problem = 0;
- e2fsck_t ctx;
-
- p = (struct process_block_struct *) priv_data;
- pctx = p->pctx;
- ctx = p->ctx;
-
- if (p->compressed && (blk == EXT2FS_COMPRESSED_BLKADDR)) {
- /* todo: Check that the comprblk_fl is high, that the
- blkaddr pattern looks right (all non-holes up to
- first EXT2FS_COMPRESSED_BLKADDR, then all
- EXT2FS_COMPRESSED_BLKADDR up to end of cluster),
- that the feature_incompat bit is high, and that the
- inode is a regular file. If we're doing a "full
- check" (a concept introduced to e2fsck by e2compr,
- meaning that we look at data blocks as well as
- metadata) then call some library routine that
- checks the compressed data. I'll have to think
- about this, because one particularly important
- problem to be able to fix is to recalculate the
- cluster size if necessary. I think that perhaps
- we'd better do most/all e2compr-specific checks
- separately, after the non-e2compr checks. If not
- doing a full check, it may be useful to test that
- the personality is linux; e.g. if it isn't then
- perhaps this really is just an illegal block. */
- return 0;
- }
-
- if (blk == 0) {
- if (p->is_dir == 0) {
- /*
- * Should never happen, since only directories
- * get called with BLOCK_FLAG_HOLE
- */
-#if DEBUG_E2FSCK
- printf("process_block() called with blk == 0, "
- "blockcnt=%d, inode %lu???\n",
- blockcnt, p->ino);
-#endif
- return 0;
- }
- if (blockcnt < 0)
- return 0;
- if (blockcnt * fs->blocksize < p->inode->i_size) {
-#if 0
- printf("Missing block (#%d) in directory inode %lu!\n",
- blockcnt, p->ino);
-#endif
- goto mark_dir;
- }
- return 0;
- }
-
-#if 0
- printf("Process_block, inode %lu, block %u, #%d\n", p->ino, blk,
- blockcnt);
-#endif
-
- /*
- * Simplistic fragmentation check. We merely require that the
- * file be contiguous. (Which can never be true for really
- * big files that are greater than a block group.)
- */
- if (!HOLE_BLKADDR(p->previous_block)) {
- if (p->previous_block+1 != blk)
- p->fragmented = 1;
- }
- p->previous_block = blk;
-
- if (p->is_dir && blockcnt > (1 << (21 - fs->super->s_log_block_size)))
- problem = PR_1_TOOBIG_DIR;
- if (p->is_reg && p->num_blocks+1 >= p->max_blocks)
- problem = PR_1_TOOBIG_REG;
- if (!p->is_dir && !p->is_reg && blockcnt > 0)
- problem = PR_1_TOOBIG_SYMLINK;
-
- if (blk < fs->super->s_first_data_block ||
- blk >= fs->super->s_blocks_count)
- problem = PR_1_ILLEGAL_BLOCK_NUM;
-
- if (problem) {
- p->num_illegal_blocks++;
- if (!p->suppress && (p->num_illegal_blocks % 12) == 0) {
- if (fix_problem(ctx, PR_1_TOO_MANY_BAD_BLOCKS, pctx)) {
- p->clear = 1;
- return BLOCK_ABORT;
- }
- if (fix_problem(ctx, PR_1_SUPPRESS_MESSAGES, pctx)) {
- p->suppress = 1;
- set_latch_flags(PR_LATCH_BLOCK,
- PRL_SUPPRESS, 0);
- }
- }
- pctx->blk = blk;
- pctx->blkcount = blockcnt;
- if (fix_problem(ctx, problem, pctx)) {
- blk = *block_nr = 0;
- ret_code = BLOCK_CHANGED;
- goto mark_dir;
- } else
- return 0;
- }
-
- if (p->ino == EXT2_RESIZE_INO) {
- /*
- * The resize inode has already be sanity checked
- * during pass #0 (the superblock checks). All we
- * have to do is mark the double indirect block as
- * being in use; all of the other blocks are handled
- * by mark_table_blocks()).
- */
- if (blockcnt == BLOCK_COUNT_DIND)
- mark_block_used(ctx, blk);
- } else
- mark_block_used(ctx, blk);
- p->num_blocks++;
- if (blockcnt >= 0)
- p->last_block = blockcnt;
-mark_dir:
- if (p->is_dir && (blockcnt >= 0)) {
- pctx->errcode = ext2fs_add_dir_block(fs->dblist, p->ino,
- blk, blockcnt);
- if (pctx->errcode) {
- pctx->blk = blk;
- pctx->num = blockcnt;
- fix_problem(ctx, PR_1_ADD_DBLOCK, pctx);
- /* Should never get here */
- ctx->flags |= E2F_FLAG_ABORT;
- return BLOCK_ABORT;
- }
- }
- return ret_code;
-}
-
-static int process_bad_block(ext2_filsys fs,
- blk_t *block_nr,
- e2_blkcnt_t blockcnt,
- blk_t ref_block EXT2FS_ATTR((unused)),
- int ref_offset EXT2FS_ATTR((unused)),
- void *priv_data)
-{
- struct process_block_struct *p;
- blk_t blk = *block_nr;
- blk_t first_block;
- dgrp_t i;
- struct problem_context *pctx;
- e2fsck_t ctx;
-
- /*
- * Note: This function processes blocks for the bad blocks
- * inode, which is never compressed. So we don't use HOLE_BLKADDR().
- */
-
- if (!blk)
- return 0;
-
- p = (struct process_block_struct *) priv_data;
- ctx = p->ctx;
- pctx = p->pctx;
-
- pctx->ino = EXT2_BAD_INO;
- pctx->blk = blk;
- pctx->blkcount = blockcnt;
-
- if ((blk < fs->super->s_first_data_block) ||
- (blk >= fs->super->s_blocks_count)) {
- if (fix_problem(ctx, PR_1_BB_ILLEGAL_BLOCK_NUM, pctx)) {
- *block_nr = 0;
- return BLOCK_CHANGED;
- } else
- return 0;
- }
-
- if (blockcnt < 0) {
- if (ext2fs_test_block_bitmap(p->fs_meta_blocks, blk)) {
- p->bbcheck = 1;
- if (fix_problem(ctx, PR_1_BB_FS_BLOCK, pctx)) {
- *block_nr = 0;
- return BLOCK_CHANGED;
- }
- } else if (ext2fs_test_block_bitmap(ctx->block_found_map,
- blk)) {
- p->bbcheck = 1;
- if (fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK,
- pctx)) {
- *block_nr = 0;
- return BLOCK_CHANGED;
- }
- if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
- return BLOCK_ABORT;
- } else
- mark_block_used(ctx, blk);
- return 0;
- }
-#if 0
- printf ("DEBUG: Marking %u as bad.\n", blk);
-#endif
- ctx->fs_badblocks_count++;
- /*
- * If the block is not used, then mark it as used and return.
- * If it is already marked as found, this must mean that
- * there's an overlap between the filesystem table blocks
- * (bitmaps and inode table) and the bad block list.
- */
- if (!ext2fs_test_block_bitmap(ctx->block_found_map, blk)) {
- ext2fs_mark_block_bitmap(ctx->block_found_map, blk);
- return 0;
- }
- /*
- * Try to find the where the filesystem block was used...
- */
- first_block = fs->super->s_first_data_block;
-
- for (i = 0; i < fs->group_desc_count; i++ ) {
- pctx->group = i;
- pctx->blk = blk;
- if (!ext2fs_bg_has_super(fs, i))
- goto skip_super;
- if (blk == first_block) {
- if (i == 0) {
- if (fix_problem(ctx,
- PR_1_BAD_PRIMARY_SUPERBLOCK,
- pctx)) {
- *block_nr = 0;
- return BLOCK_CHANGED;
- }
- return 0;
- }
- fix_problem(ctx, PR_1_BAD_SUPERBLOCK, pctx);
- return 0;
- }
- if ((blk > first_block) &&
- (blk <= first_block + fs->desc_blocks)) {
- if (i == 0) {
- pctx->blk = *block_nr;
- if (fix_problem(ctx,
- PR_1_BAD_PRIMARY_GROUP_DESCRIPTOR, pctx)) {
- *block_nr = 0;
- return BLOCK_CHANGED;
- }
- return 0;
- }
- fix_problem(ctx, PR_1_BAD_GROUP_DESCRIPTORS, pctx);
- return 0;
- }
- skip_super:
- if (blk == fs->group_desc[i].bg_block_bitmap) {
- if (fix_problem(ctx, PR_1_BB_BAD_BLOCK, pctx)) {
- ctx->invalid_block_bitmap_flag[i]++;
- ctx->invalid_bitmaps++;
- }
- return 0;
- }
- if (blk == fs->group_desc[i].bg_inode_bitmap) {
- if (fix_problem(ctx, PR_1_IB_BAD_BLOCK, pctx)) {
- ctx->invalid_inode_bitmap_flag[i]++;
- ctx->invalid_bitmaps++;
- }
- return 0;
- }
- if ((blk >= fs->group_desc[i].bg_inode_table) &&
- (blk < (fs->group_desc[i].bg_inode_table +
- fs->inode_blocks_per_group))) {
- /*
- * If there are bad blocks in the inode table,
- * the inode scan code will try to do
- * something reasonable automatically.
- */
- return 0;
- }
- first_block += fs->super->s_blocks_per_group;
- }
- /*
- * If we've gotten to this point, then the only
- * possibility is that the bad block inode meta data
- * is using a bad block.
- */
- if ((blk == p->inode->i_block[EXT2_IND_BLOCK]) ||
- (blk == p->inode->i_block[EXT2_DIND_BLOCK]) ||
- (blk == p->inode->i_block[EXT2_TIND_BLOCK])) {
- p->bbcheck = 1;
- if (fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK, pctx)) {
- *block_nr = 0;
- return BLOCK_CHANGED;
- }
- if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
- return BLOCK_ABORT;
- return 0;
- }
-
- pctx->group = -1;
-
- /* Warn user that the block wasn't claimed */
- fix_problem(ctx, PR_1_PROGERR_CLAIMED_BLOCK, pctx);
-
- return 0;
-}
-
-static void new_table_block(e2fsck_t ctx, blk_t first_block, int group,
- const char *name, int num, blk_t *new_block)
-{
- ext2_filsys fs = ctx->fs;
- blk_t old_block = *new_block;
- int i;
- char *buf;
- struct problem_context pctx;
-
- clear_problem_context(&pctx);
-
- pctx.group = group;
- pctx.blk = old_block;
- pctx.str = name;
-
- pctx.errcode = ext2fs_get_free_blocks(fs, first_block,
- first_block + fs->super->s_blocks_per_group,
- num, ctx->block_found_map, new_block);
- if (pctx.errcode) {
- pctx.num = num;
- fix_problem(ctx, PR_1_RELOC_BLOCK_ALLOCATE, &pctx);
- ext2fs_unmark_valid(fs);
- return;
- }
- pctx.errcode = ext2fs_get_mem(fs->blocksize, &buf);
- if (pctx.errcode) {
- fix_problem(ctx, PR_1_RELOC_MEMORY_ALLOCATE, &pctx);
- ext2fs_unmark_valid(fs);
- return;
- }
- ext2fs_mark_super_dirty(fs);
- fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
- pctx.blk2 = *new_block;
- fix_problem(ctx, (old_block ? PR_1_RELOC_FROM_TO :
- PR_1_RELOC_TO), &pctx);
- pctx.blk2 = 0;
- for (i = 0; i < num; i++) {
- pctx.blk = i;
- ext2fs_mark_block_bitmap(ctx->block_found_map, (*new_block)+i);
- if (old_block) {
- pctx.errcode = io_channel_read_blk(fs->io,
- old_block + i, 1, buf);
- if (pctx.errcode)
- fix_problem(ctx, PR_1_RELOC_READ_ERR, &pctx);
- } else
- memset(buf, 0, fs->blocksize);
-
- pctx.blk = (*new_block) + i;
- pctx.errcode = io_channel_write_blk(fs->io, pctx.blk,
- 1, buf);
- if (pctx.errcode)
- fix_problem(ctx, PR_1_RELOC_WRITE_ERR, &pctx);
- }
- ext2fs_free_mem(&buf);
-}
-
-/*
- * This routine gets called at the end of pass 1 if bad blocks are
- * detected in the superblock, group descriptors, inode_bitmaps, or
- * block bitmaps. At this point, all of the blocks have been mapped
- * out, so we can try to allocate new block(s) to replace the bad
- * blocks.
- */
-static void handle_fs_bad_blocks(e2fsck_t ctx)
-{
- ext2_filsys fs = ctx->fs;
- dgrp_t i;
- int first_block = fs->super->s_first_data_block;
-
- for (i = 0; i < fs->group_desc_count; i++) {
- if (ctx->invalid_block_bitmap_flag[i]) {
- new_table_block(ctx, first_block, i, _("block bitmap"),
- 1, &fs->group_desc[i].bg_block_bitmap);
- }
- if (ctx->invalid_inode_bitmap_flag[i]) {
- new_table_block(ctx, first_block, i, _("inode bitmap"),
- 1, &fs->group_desc[i].bg_inode_bitmap);
- }
- if (ctx->invalid_inode_table_flag[i]) {
- new_table_block(ctx, first_block, i, _("inode table"),
- fs->inode_blocks_per_group,
- &fs->group_desc[i].bg_inode_table);
- ctx->flags |= E2F_FLAG_RESTART;
- }
- first_block += fs->super->s_blocks_per_group;
- }
- ctx->invalid_bitmaps = 0;
-}
-
-/*
- * This routine marks all blocks which are used by the superblock,
- * group descriptors, inode bitmaps, and block bitmaps.
- */
-static void mark_table_blocks(e2fsck_t ctx)
-{
- ext2_filsys fs = ctx->fs;
- blk_t block, b;
- dgrp_t i;
- int j;
- struct problem_context pctx;
-
- clear_problem_context(&pctx);
-
- block = fs->super->s_first_data_block;
- for (i = 0; i < fs->group_desc_count; i++) {
- pctx.group = i;
-
- ext2fs_reserve_super_and_bgd(fs, i, ctx->block_found_map);
-
- /*
- * Mark the blocks used for the inode table
- */
- if (fs->group_desc[i].bg_inode_table) {
- for (j = 0, b = fs->group_desc[i].bg_inode_table;
- j < fs->inode_blocks_per_group;
- j++, b++) {
- if (ext2fs_test_block_bitmap(ctx->block_found_map,
- b)) {
- pctx.blk = b;
- if (fix_problem(ctx,
- PR_1_ITABLE_CONFLICT, &pctx)) {
- ctx->invalid_inode_table_flag[i]++;
- ctx->invalid_bitmaps++;
- }
- } else {
- ext2fs_mark_block_bitmap(ctx->block_found_map,
- b);
- }
- }
- }
-
- /*
- * Mark block used for the block bitmap
- */
- if (fs->group_desc[i].bg_block_bitmap) {
- if (ext2fs_test_block_bitmap(ctx->block_found_map,
- fs->group_desc[i].bg_block_bitmap)) {
- pctx.blk = fs->group_desc[i].bg_block_bitmap;
- if (fix_problem(ctx, PR_1_BB_CONFLICT, &pctx)) {
- ctx->invalid_block_bitmap_flag[i]++;
- ctx->invalid_bitmaps++;
- }
- } else {
- ext2fs_mark_block_bitmap(ctx->block_found_map,
- fs->group_desc[i].bg_block_bitmap);
- }
-
- }
- /*
- * Mark block used for the inode bitmap
- */
- if (fs->group_desc[i].bg_inode_bitmap) {
- if (ext2fs_test_block_bitmap(ctx->block_found_map,
- fs->group_desc[i].bg_inode_bitmap)) {
- pctx.blk = fs->group_desc[i].bg_inode_bitmap;
- if (fix_problem(ctx, PR_1_IB_CONFLICT, &pctx)) {
- ctx->invalid_inode_bitmap_flag[i]++;
- ctx->invalid_bitmaps++;
- }
- } else {
- ext2fs_mark_block_bitmap(ctx->block_found_map,
- fs->group_desc[i].bg_inode_bitmap);
- }
- }
- block += fs->super->s_blocks_per_group;
- }
-}
-
-/*
- * Thes subroutines short circuits ext2fs_get_blocks and
- * ext2fs_check_directory; we use them since we already have the inode
- * structure, so there's no point in letting the ext2fs library read
- * the inode again.
- */
-static errcode_t pass1_get_blocks(ext2_filsys fs, ext2_ino_t ino,
- blk_t *blocks)
-{
- e2fsck_t ctx = (e2fsck_t) fs->priv_data;
- int i;
-
- if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
- return EXT2_ET_CALLBACK_NOTHANDLED;
-
- for (i=0; i < EXT2_N_BLOCKS; i++)
- blocks[i] = ctx->stashed_inode->i_block[i];
- return 0;
-}
-
-static errcode_t pass1_read_inode(ext2_filsys fs, ext2_ino_t ino,
- struct ext2_inode *inode)
-{
- e2fsck_t ctx = (e2fsck_t) fs->priv_data;
-
- if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
- return EXT2_ET_CALLBACK_NOTHANDLED;
- *inode = *ctx->stashed_inode;
- return 0;
-}
-
-static errcode_t pass1_write_inode(ext2_filsys fs, ext2_ino_t ino,
- struct ext2_inode *inode)
-{
- e2fsck_t ctx = (e2fsck_t) fs->priv_data;
-
- if ((ino == ctx->stashed_ino) && ctx->stashed_inode)
- *ctx->stashed_inode = *inode;
- return EXT2_ET_CALLBACK_NOTHANDLED;
-}
-
-static errcode_t pass1_check_directory(ext2_filsys fs, ext2_ino_t ino)
-{
- e2fsck_t ctx = (e2fsck_t) fs->priv_data;
-
- if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
- return EXT2_ET_CALLBACK_NOTHANDLED;
-
- if (!LINUX_S_ISDIR(ctx->stashed_inode->i_mode))
- return EXT2_ET_NO_DIRECTORY;
- return 0;
-}
-
-void e2fsck_use_inode_shortcuts(e2fsck_t ctx, int bool)
-{
- ext2_filsys fs = ctx->fs;
-
- if (bool) {
- fs->get_blocks = pass1_get_blocks;
- fs->check_directory = pass1_check_directory;
- fs->read_inode = pass1_read_inode;
- fs->write_inode = pass1_write_inode;
- ctx->stashed_ino = 0;
- } else {
- fs->get_blocks = 0;
- fs->check_directory = 0;
- fs->read_inode = 0;
- fs->write_inode = 0;
- }
-}
+++ /dev/null
-/*
- * pass1b.c --- Pass #1b of e2fsck
- *
- * This file contains pass1B, pass1C, and pass1D of e2fsck. They are
- * only invoked if pass 1 discovered blocks which are in use by more
- * than one inode.
- *
- * Pass1B scans the data blocks of all the inodes again, generating a
- * complete list of duplicate blocks and which inodes have claimed
- * them.
- *
- * Pass1C does a tree-traversal of the filesystem, to determine the
- * parent directories of these inodes. This step is necessary so that
- * e2fsck can print out the pathnames of affected inodes.
- *
- * Pass1D is a reconciliation pass. For each inode with duplicate
- * blocks, the user is prompted if s/he would like to clone the file
- * (so that the file gets a fresh copy of the duplicated blocks) or
- * simply to delete the file.
- *
- * Copyright (C) 1993, 1994, 1995, 1996, 1997 Theodore Ts'o.
- *
- * %Begin-Header%
- * This file may be redistributed under the terms of the GNU Public
- * License.
- * %End-Header%
- *
- */
-
-#include <time.h>
-#ifdef HAVE_ERRNO_H
-#include <errno.h>
-#endif
-
-#ifdef HAVE_INTTYPES_H
-#include <inttypes.h>
-#endif
-
-/* Needed for architectures where sizeof(int) != sizeof(void *) */
-#define INT_TO_VOIDPTR(val) ((void *)(intptr_t)(val))
-#define VOIDPTR_TO_INT(ptr) ((int)(intptr_t)(ptr))
-
-#include "e2fsck.h"
-
-#include "problem.h"
-#include "dict.h"
-
-/* Define an extension to the ext2 library's block count information */
-#define BLOCK_COUNT_EXTATTR (-5)
-
-struct block_el {
- blk_t block;
- struct block_el *next;
-};
-
-struct inode_el {
- ext2_ino_t inode;
- struct inode_el *next;
-};
-
-struct dup_block {
- int num_bad;
- struct inode_el *inode_list;
-};
-
-/*
- * This structure stores information about a particular inode which
- * is sharing blocks with other inodes. This information is collected
- * to display to the user, so that the user knows what files he or she
- * is dealing with, when trying to decide how to resolve the conflict
- * of multiply-claimed blocks.
- */
-struct dup_inode {
- ext2_ino_t dir;
- int num_dupblocks;
- struct ext2_inode inode;
- struct block_el *block_list;
-};
-
-static int process_pass1b_block(ext2_filsys fs, blk_t *blocknr,
- e2_blkcnt_t blockcnt, blk_t ref_blk,
- int ref_offset, void *priv_data);
-static void delete_file(e2fsck_t ctx, ext2_ino_t ino,
- struct dup_inode *dp, char *block_buf);
-static int clone_file(e2fsck_t ctx, ext2_ino_t ino,
- struct dup_inode *dp, char* block_buf);
-static int check_if_fs_block(e2fsck_t ctx, blk_t test_blk);
-
-static void pass1b(e2fsck_t ctx, char *block_buf);
-static void pass1c(e2fsck_t ctx, char *block_buf);
-static void pass1d(e2fsck_t ctx, char *block_buf);
-
-static int dup_inode_count = 0;
-
-static dict_t blk_dict, ino_dict;
-
-static ext2fs_inode_bitmap inode_dup_map;
-
-static int dict_int_cmp(const void *a, const void *b)
-{
- intptr_t ia, ib;
-
- ia = (intptr_t)a;
- ib = (intptr_t)b;
-
- return (ia-ib);
-}
-
-/*
- * Add a duplicate block record
- */
-static void add_dupe(e2fsck_t ctx, ext2_ino_t ino, blk_t blk,
- struct ext2_inode *inode)
-{
- dnode_t *n;
- struct dup_block *db;
- struct dup_inode *di;
- struct block_el *blk_el;
- struct inode_el *ino_el;
-
- n = dict_lookup(&blk_dict, INT_TO_VOIDPTR(blk));
- if (n)
- db = (struct dup_block *) dnode_get(n);
- else {
- db = (struct dup_block *) e2fsck_allocate_memory(ctx,
- sizeof(struct dup_block), "duplicate block header");
- db->num_bad = 0;
- db->inode_list = 0;
- dict_alloc_insert(&blk_dict, INT_TO_VOIDPTR(blk), db);
- }
- ino_el = (struct inode_el *) e2fsck_allocate_memory(ctx,
- sizeof(struct inode_el), "inode element");
- ino_el->inode = ino;
- ino_el->next = db->inode_list;
- db->inode_list = ino_el;
- db->num_bad++;
-
- n = dict_lookup(&ino_dict, INT_TO_VOIDPTR(ino));
- if (n)
- di = (struct dup_inode *) dnode_get(n);
- else {
- di = (struct dup_inode *) e2fsck_allocate_memory(ctx,
- sizeof(struct dup_inode), "duplicate inode header");
- di->dir = (ino == EXT2_ROOT_INO) ? EXT2_ROOT_INO : 0 ;
- di->num_dupblocks = 0;
- di->block_list = 0;
- di->inode = *inode;
- dict_alloc_insert(&ino_dict, INT_TO_VOIDPTR(ino), di);
- }
- blk_el = (struct block_el *) e2fsck_allocate_memory(ctx,
- sizeof(struct block_el), "block element");
- blk_el->block = blk;
- blk_el->next = di->block_list;
- di->block_list = blk_el;
- di->num_dupblocks++;
-}
-
-/*
- * Free a duplicate inode record
- */
-static void inode_dnode_free(dnode_t *node,
- void *context EXT2FS_ATTR((unused)))
-{
- struct dup_inode *di;
- struct block_el *p, *next;
-
- di = (struct dup_inode *) dnode_get(node);
- for (p = di->block_list; p; p = next) {
- next = p->next;
- free(p);
- }
- free(node);
-}
-
-/*
- * Free a duplicate block record
- */
-static void block_dnode_free(dnode_t *node,
- void *context EXT2FS_ATTR((unused)))
-{
- struct dup_block *db;
- struct inode_el *p, *next;
-
- db = (struct dup_block *) dnode_get(node);
- for (p = db->inode_list; p; p = next) {
- next = p->next;
- free(p);
- }
- free(node);
-}
-
-
-/*
- * Main procedure for handling duplicate blocks
- */
-void e2fsck_pass1_dupblocks(e2fsck_t ctx, char *block_buf)
-{
- ext2_filsys fs = ctx->fs;
- struct problem_context pctx;
-
- clear_problem_context(&pctx);
-
- pctx.errcode = ext2fs_allocate_inode_bitmap(fs,
- _("multiply claimed inode map"), &inode_dup_map);
- if (pctx.errcode) {
- fix_problem(ctx, PR_1B_ALLOCATE_IBITMAP_ERROR, &pctx);
- ctx->flags |= E2F_FLAG_ABORT;
- return;
- }
-
- dict_init(&ino_dict, DICTCOUNT_T_MAX, dict_int_cmp);
- dict_init(&blk_dict, DICTCOUNT_T_MAX, dict_int_cmp);
- dict_set_allocator(&ino_dict, NULL, inode_dnode_free, NULL);
- dict_set_allocator(&blk_dict, NULL, block_dnode_free, NULL);
-
- pass1b(ctx, block_buf);
- pass1c(ctx, block_buf);
- pass1d(ctx, block_buf);
-
- /*
- * Time to free all of the accumulated data structures that we
- * don't need anymore.
- */
- dict_free_nodes(&ino_dict);
- dict_free_nodes(&blk_dict);
-}
-
-/*
- * Scan the inodes looking for inodes that contain duplicate blocks.
- */
-struct process_block_struct {
- e2fsck_t ctx;
- ext2_ino_t ino;
- int dup_blocks;
- struct ext2_inode *inode;
- struct problem_context *pctx;
-};
-
-static void pass1b(e2fsck_t ctx, char *block_buf)
-{
- ext2_filsys fs = ctx->fs;
- ext2_ino_t ino;
- struct ext2_inode inode;
- ext2_inode_scan scan;
- struct process_block_struct pb;
- struct problem_context pctx;
-
- clear_problem_context(&pctx);
-
- if (!(ctx->options & E2F_OPT_PREEN))
- fix_problem(ctx, PR_1B_PASS_HEADER, &pctx);
- pctx.errcode = ext2fs_open_inode_scan(fs, ctx->inode_buffer_blocks,
- &scan);
- if (pctx.errcode) {
- fix_problem(ctx, PR_1B_ISCAN_ERROR, &pctx);
- ctx->flags |= E2F_FLAG_ABORT;
- return;
- }
- ctx->stashed_inode = &inode;
- pb.ctx = ctx;
- pb.pctx = &pctx;
- pctx.str = "pass1b";
- while (1) {
- pctx.errcode = ext2fs_get_next_inode(scan, &ino, &inode);
- if (pctx.errcode == EXT2_ET_BAD_BLOCK_IN_INODE_TABLE)
- continue;
- if (pctx.errcode) {
- fix_problem(ctx, PR_1B_ISCAN_ERROR, &pctx);
- ctx->flags |= E2F_FLAG_ABORT;
- return;
- }
- if (!ino)
- break;
- pctx.ino = ctx->stashed_ino = ino;
- if ((ino != EXT2_BAD_INO) &&
- !ext2fs_test_inode_bitmap(ctx->inode_used_map, ino))
- continue;
-
- pb.ino = ino;
- pb.dup_blocks = 0;
- pb.inode = &inode;
-
- if (ext2fs_inode_has_valid_blocks(&inode) ||
- (ino == EXT2_BAD_INO))
- pctx.errcode = ext2fs_block_iterate2(fs, ino,
- 0, block_buf, process_pass1b_block, &pb);
- if (inode.i_file_acl)
- process_pass1b_block(fs, &inode.i_file_acl,
- BLOCK_COUNT_EXTATTR, 0, 0, &pb);
- if (pb.dup_blocks) {
- end_problem_latch(ctx, PR_LATCH_DBLOCK);
- if (ino >= EXT2_FIRST_INODE(fs->super) ||
- ino == EXT2_ROOT_INO)
- dup_inode_count++;
- }
- if (pctx.errcode)
- fix_problem(ctx, PR_1B_BLOCK_ITERATE, &pctx);
- }
- ext2fs_close_inode_scan(scan);
- e2fsck_use_inode_shortcuts(ctx, 0);
-}
-
-static int process_pass1b_block(ext2_filsys fs EXT2FS_ATTR((unused)),
- blk_t *block_nr,
- e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
- blk_t ref_blk EXT2FS_ATTR((unused)),
- int ref_offset EXT2FS_ATTR((unused)),
- void *priv_data)
-{
- struct process_block_struct *p;
- e2fsck_t ctx;
-
- if (HOLE_BLKADDR(*block_nr))
- return 0;
- p = (struct process_block_struct *) priv_data;
- ctx = p->ctx;
-
- if (!ext2fs_test_block_bitmap(ctx->block_dup_map, *block_nr))
- return 0;
-
- /* OK, this is a duplicate block */
- if (p->ino != EXT2_BAD_INO) {
- p->pctx->blk = *block_nr;
- fix_problem(ctx, PR_1B_DUP_BLOCK, p->pctx);
- }
- p->dup_blocks++;
- ext2fs_mark_inode_bitmap(inode_dup_map, p->ino);
-
- add_dupe(ctx, p->ino, *block_nr, p->inode);
-
- return 0;
-}
-
-/*
- * Pass 1c: Scan directories for inodes with duplicate blocks. This
- * is used so that we can print pathnames when prompting the user for
- * what to do.
- */
-struct search_dir_struct {
- int count;
- ext2_ino_t first_inode;
- ext2_ino_t max_inode;
-};
-
-static int search_dirent_proc(ext2_ino_t dir, int entry,
- struct ext2_dir_entry *dirent,
- int offset EXT2FS_ATTR((unused)),
- int blocksize EXT2FS_ATTR((unused)),
- char *buf EXT2FS_ATTR((unused)),
- void *priv_data)
-{
- struct search_dir_struct *sd;
- struct dup_inode *p;
- dnode_t *n;
-
- sd = (struct search_dir_struct *) priv_data;
-
- if (dirent->inode > sd->max_inode)
- /* Should abort this inode, but not everything */
- return 0;
-
- if ((dirent->inode < sd->first_inode) || (entry < DIRENT_OTHER_FILE) ||
- !ext2fs_test_inode_bitmap(inode_dup_map, dirent->inode))
- return 0;
-
- n = dict_lookup(&ino_dict, INT_TO_VOIDPTR(dirent->inode));
- if (!n)
- return 0;
- p = (struct dup_inode *) dnode_get(n);
- p->dir = dir;
- sd->count--;
-
- return(sd->count ? 0 : DIRENT_ABORT);
-}
-
-
-static void pass1c(e2fsck_t ctx, char *block_buf)
-{
- ext2_filsys fs = ctx->fs;
- struct search_dir_struct sd;
- struct problem_context pctx;
-
- clear_problem_context(&pctx);
-
- if (!(ctx->options & E2F_OPT_PREEN))
- fix_problem(ctx, PR_1C_PASS_HEADER, &pctx);
-
- /*
- * Search through all directories to translate inodes to names
- * (by searching for the containing directory for that inode.)
- */
- sd.count = dup_inode_count;
- sd.first_inode = EXT2_FIRST_INODE(fs->super);
- sd.max_inode = fs->super->s_inodes_count;
- ext2fs_dblist_dir_iterate(fs->dblist, 0, block_buf,
- search_dirent_proc, &sd);
-}
-
-static void pass1d(e2fsck_t ctx, char *block_buf)
-{
- ext2_filsys fs = ctx->fs;
- struct dup_inode *p, *t;
- struct dup_block *q;
- ext2_ino_t *shared, ino;
- int shared_len;
- int i;
- int file_ok;
- int meta_data = 0;
- struct problem_context pctx;
- dnode_t *n, *m;
- struct block_el *s;
- struct inode_el *r;
-
- clear_problem_context(&pctx);
-
- if (!(ctx->options & E2F_OPT_PREEN))
- fix_problem(ctx, PR_1D_PASS_HEADER, &pctx);
- e2fsck_read_bitmaps(ctx);
-
- pctx.num = dup_inode_count; /* dict_count(&ino_dict); */
- fix_problem(ctx, PR_1D_NUM_DUP_INODES, &pctx);
- shared = (ext2_ino_t *) e2fsck_allocate_memory(ctx,
- sizeof(ext2_ino_t) * dict_count(&ino_dict),
- "Shared inode list");
- for (n = dict_first(&ino_dict); n; n = dict_next(&ino_dict, n)) {
- p = (struct dup_inode *) dnode_get(n);
- shared_len = 0;
- file_ok = 1;
- ino = (ext2_ino_t)VOIDPTR_TO_INT(dnode_getkey(n));
- if (ino == EXT2_BAD_INO)
- continue;
-
- /*
- * Find all of the inodes which share blocks with this
- * one. First we find all of the duplicate blocks
- * belonging to this inode, and then search each block
- * get the list of inodes, and merge them together.
- */
- for (s = p->block_list; s; s = s->next) {
- m = dict_lookup(&blk_dict, INT_TO_VOIDPTR(s->block));
- if (!m)
- continue; /* Should never happen... */
- q = (struct dup_block *) dnode_get(m);
- if (q->num_bad > 1)
- file_ok = 0;
- if (check_if_fs_block(ctx, s->block)) {
- file_ok = 0;
- meta_data = 1;
- }
-
- /*
- * Add all inodes used by this block to the
- * shared[] --- which is a unique list, so
- * if an inode is already in shared[], don't
- * add it again.
- */
- for (r = q->inode_list; r; r = r->next) {
- if (r->inode == ino)
- continue;
- for (i = 0; i < shared_len; i++)
- if (shared[i] == r->inode)
- break;
- if (i == shared_len) {
- shared[shared_len++] = r->inode;
- }
- }
- }
-
- /*
- * Report the inode that we are working on
- */
- pctx.inode = &p->inode;
- pctx.ino = ino;
- pctx.dir = p->dir;
- pctx.blkcount = p->num_dupblocks;
- pctx.num = meta_data ? shared_len+1 : shared_len;
- fix_problem(ctx, PR_1D_DUP_FILE, &pctx);
- pctx.blkcount = 0;
- pctx.num = 0;
-
- if (meta_data)
- fix_problem(ctx, PR_1D_SHARE_METADATA, &pctx);
-
- for (i = 0; i < shared_len; i++) {
- m = dict_lookup(&ino_dict, INT_TO_VOIDPTR(shared[i]));
- if (!m)
- continue; /* should never happen */
- t = (struct dup_inode *) dnode_get(m);
- /*
- * Report the inode that we are sharing with
- */
- pctx.inode = &t->inode;
- pctx.ino = shared[i];
- pctx.dir = t->dir;
- fix_problem(ctx, PR_1D_DUP_FILE_LIST, &pctx);
- }
- if (file_ok) {
- fix_problem(ctx, PR_1D_DUP_BLOCKS_DEALT, &pctx);
- continue;
- }
- if (fix_problem(ctx, PR_1D_CLONE_QUESTION, &pctx)) {
- pctx.errcode = clone_file(ctx, ino, p, block_buf);
- if (pctx.errcode)
- fix_problem(ctx, PR_1D_CLONE_ERROR, &pctx);
- else
- continue;
- }
- if (fix_problem(ctx, PR_1D_DELETE_QUESTION, &pctx))
- delete_file(ctx, ino, p, block_buf);
- else
- ext2fs_unmark_valid(fs);
- }
- ext2fs_free_mem(&shared);
-}
-
-/*
- * Drop the refcount on the dup_block structure, and clear the entry
- * in the block_dup_map if appropriate.
- */
-static void decrement_badcount(e2fsck_t ctx, blk_t block, struct dup_block *p)
-{
- p->num_bad--;
- if (p->num_bad <= 0 ||
- (p->num_bad == 1 && !check_if_fs_block(ctx, block)))
- ext2fs_unmark_block_bitmap(ctx->block_dup_map, block);
-}
-
-static int delete_file_block(ext2_filsys fs,
- blk_t *block_nr,
- e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
- blk_t ref_block EXT2FS_ATTR((unused)),
- int ref_offset EXT2FS_ATTR((unused)),
- void *priv_data)
-{
- struct process_block_struct *pb;
- struct dup_block *p;
- dnode_t *n;
- e2fsck_t ctx;
-
- pb = (struct process_block_struct *) priv_data;
- ctx = pb->ctx;
-
- if (HOLE_BLKADDR(*block_nr))
- return 0;
-
- if (ext2fs_test_block_bitmap(ctx->block_dup_map, *block_nr)) {
- n = dict_lookup(&blk_dict, INT_TO_VOIDPTR(*block_nr));
- if (n) {
- p = (struct dup_block *) dnode_get(n);
- decrement_badcount(ctx, *block_nr, p);
- } else
- com_err("delete_file_block", 0,
- _("internal error; can't find dup_blk for %d\n"),
- *block_nr);
- } else {
- ext2fs_unmark_block_bitmap(ctx->block_found_map, *block_nr);
- ext2fs_block_alloc_stats(fs, *block_nr, -1);
- }
-
- return 0;
-}
-
-static void delete_file(e2fsck_t ctx, ext2_ino_t ino,
- struct dup_inode *dp, char* block_buf)
-{
- ext2_filsys fs = ctx->fs;
- struct process_block_struct pb;
- struct ext2_inode inode;
- struct problem_context pctx;
- unsigned int count;
-
- clear_problem_context(&pctx);
- pctx.ino = pb.ino = ino;
- pb.dup_blocks = dp->num_dupblocks;
- pb.ctx = ctx;
- pctx.str = "delete_file";
-
- e2fsck_read_inode(ctx, ino, &inode, "delete_file");
- if (ext2fs_inode_has_valid_blocks(&inode))
- pctx.errcode = ext2fs_block_iterate2(fs, ino, 0, block_buf,
- delete_file_block, &pb);
- if (pctx.errcode)
- fix_problem(ctx, PR_1B_BLOCK_ITERATE, &pctx);
- ext2fs_unmark_inode_bitmap(ctx->inode_used_map, ino);
- ext2fs_unmark_inode_bitmap(ctx->inode_dir_map, ino);
- if (ctx->inode_bad_map)
- ext2fs_unmark_inode_bitmap(ctx->inode_bad_map, ino);
- ext2fs_inode_alloc_stats2(fs, ino, -1, LINUX_S_ISDIR(inode.i_mode));
-
- /* Inode may have changed by block_iterate, so reread it */
- e2fsck_read_inode(ctx, ino, &inode, "delete_file");
- inode.i_links_count = 0;
- inode.i_dtime = time(0);
- if (inode.i_file_acl &&
- (fs->super->s_feature_compat & EXT2_FEATURE_COMPAT_EXT_ATTR)) {
- count = 1;
- pctx.errcode = ext2fs_adjust_ea_refcount(fs, inode.i_file_acl,
- block_buf, -1, &count);
- if (pctx.errcode == EXT2_ET_BAD_EA_BLOCK_NUM) {
- pctx.errcode = 0;
- count = 1;
- }
- if (pctx.errcode) {
- pctx.blk = inode.i_file_acl;
- fix_problem(ctx, PR_1B_ADJ_EA_REFCOUNT, &pctx);
- }
- /*
- * If the count is zero, then arrange to have the
- * block deleted. If the block is in the block_dup_map,
- * also call delete_file_block since it will take care
- * of keeping the accounting straight.
- */
- if ((count == 0) ||
- ext2fs_test_block_bitmap(ctx->block_dup_map,
- inode.i_file_acl))
- delete_file_block(fs, &inode.i_file_acl,
- BLOCK_COUNT_EXTATTR, 0, 0, &pb);
- }
- e2fsck_write_inode(ctx, ino, &inode, "delete_file");
-}
-
-struct clone_struct {
- errcode_t errcode;
- ext2_ino_t dir;
- char *buf;
- e2fsck_t ctx;
-};
-
-static int clone_file_block(ext2_filsys fs,
- blk_t *block_nr,
- e2_blkcnt_t blockcnt,
- blk_t ref_block EXT2FS_ATTR((unused)),
- int ref_offset EXT2FS_ATTR((unused)),
- void *priv_data)
-{
- struct dup_block *p;
- blk_t new_block;
- errcode_t retval;
- struct clone_struct *cs = (struct clone_struct *) priv_data;
- dnode_t *n;
- e2fsck_t ctx;
-
- ctx = cs->ctx;
-
- if (HOLE_BLKADDR(*block_nr))
- return 0;
-
- if (ext2fs_test_block_bitmap(ctx->block_dup_map, *block_nr)) {
- n = dict_lookup(&blk_dict, INT_TO_VOIDPTR(*block_nr));
- if (n) {
- p = (struct dup_block *) dnode_get(n);
- retval = ext2fs_new_block(fs, 0, ctx->block_found_map,
- &new_block);
- if (retval) {
- cs->errcode = retval;
- return BLOCK_ABORT;
- }
- if (cs->dir && (blockcnt >= 0)) {
- retval = ext2fs_set_dir_block(fs->dblist,
- cs->dir, new_block, blockcnt);
- if (retval) {
- cs->errcode = retval;
- return BLOCK_ABORT;
- }
- }
-#if 0
- printf("Cloning block %u to %u\n", *block_nr,
- new_block);
-#endif
- retval = io_channel_read_blk(fs->io, *block_nr, 1,
- cs->buf);
- if (retval) {
- cs->errcode = retval;
- return BLOCK_ABORT;
- }
- retval = io_channel_write_blk(fs->io, new_block, 1,
- cs->buf);
- if (retval) {
- cs->errcode = retval;
- return BLOCK_ABORT;
- }
- decrement_badcount(ctx, *block_nr, p);
- *block_nr = new_block;
- ext2fs_mark_block_bitmap(ctx->block_found_map,
- new_block);
- ext2fs_mark_block_bitmap(fs->block_map, new_block);
- return BLOCK_CHANGED;
- } else
- com_err("clone_file_block", 0,
- _("internal error; can't find dup_blk for %d\n"),
- *block_nr);
- }
- return 0;
-}
-
-static int clone_file(e2fsck_t ctx, ext2_ino_t ino,
- struct dup_inode *dp, char* block_buf)
-{
- ext2_filsys fs = ctx->fs;
- errcode_t retval;
- struct clone_struct cs;
- struct problem_context pctx;
- blk_t blk;
- dnode_t *n;
- struct inode_el *ino_el;
- struct dup_block *db;
- struct dup_inode *di;
-
- clear_problem_context(&pctx);
- cs.errcode = 0;
- cs.dir = 0;
- cs.ctx = ctx;
- retval = ext2fs_get_mem(fs->blocksize, &cs.buf);
- if (retval)
- return retval;
-
- if (ext2fs_test_inode_bitmap(ctx->inode_dir_map, ino))
- cs.dir = ino;
-
- pctx.ino = ino;
- pctx.str = "clone_file";
- if (ext2fs_inode_has_valid_blocks(&dp->inode))
- pctx.errcode = ext2fs_block_iterate2(fs, ino, 0, block_buf,
- clone_file_block, &cs);
- ext2fs_mark_bb_dirty(fs);
- if (pctx.errcode) {
- fix_problem(ctx, PR_1B_BLOCK_ITERATE, &pctx);
- retval = pctx.errcode;
- goto errout;
- }
- if (cs.errcode) {
- com_err("clone_file", cs.errcode,
- _("returned from clone_file_block"));
- retval = cs.errcode;
- goto errout;
- }
- /* The inode may have changed on disk, so we have to re-read it */
- e2fsck_read_inode(ctx, ino, &dp->inode, "clone file EA");
- blk = dp->inode.i_file_acl;
- if (blk && (clone_file_block(fs, &dp->inode.i_file_acl,
- BLOCK_COUNT_EXTATTR, 0, 0, &cs) ==
- BLOCK_CHANGED)) {
- e2fsck_write_inode(ctx, ino, &dp->inode, "clone file EA");
- /*
- * If we cloned the EA block, find all other inodes
- * which refered to that EA block, and modify
- * them to point to the new EA block.
- */
- n = dict_lookup(&blk_dict, INT_TO_VOIDPTR(blk));
- db = (struct dup_block *) dnode_get(n);
- for (ino_el = db->inode_list; ino_el; ino_el = ino_el->next) {
- if (ino_el->inode == ino)
- continue;
- n = dict_lookup(&ino_dict, INT_TO_VOIDPTR(ino_el->inode));
- di = (struct dup_inode *) dnode_get(n);
- if (di->inode.i_file_acl == blk) {
- di->inode.i_file_acl = dp->inode.i_file_acl;
- e2fsck_write_inode(ctx, ino_el->inode,
- &di->inode, "clone file EA");
- decrement_badcount(ctx, blk, db);
- }
- }
- }
- retval = 0;
-errout:
- ext2fs_free_mem(&cs.buf);
- return retval;
-}
-
-/*
- * This routine returns 1 if a block overlaps with one of the superblocks,
- * group descriptors, inode bitmaps, or block bitmaps.
- */
-static int check_if_fs_block(e2fsck_t ctx, blk_t test_block)
-{
- ext2_filsys fs = ctx->fs;
- blk_t block;
- dgrp_t i;
-
- block = fs->super->s_first_data_block;
- for (i = 0; i < fs->group_desc_count; i++) {
-
- /* Check superblocks/block group descriptros */
- if (ext2fs_bg_has_super(fs, i)) {
- if (test_block >= block &&
- (test_block <= block + fs->desc_blocks))
- return 1;
- }
-
- /* Check the inode table */
- if ((fs->group_desc[i].bg_inode_table) &&
- (test_block >= fs->group_desc[i].bg_inode_table) &&
- (test_block < (fs->group_desc[i].bg_inode_table +
- fs->inode_blocks_per_group)))
- return 1;
-
- /* Check the bitmap blocks */
- if ((test_block == fs->group_desc[i].bg_block_bitmap) ||
- (test_block == fs->group_desc[i].bg_inode_bitmap))
- return 1;
-
- block += fs->super->s_blocks_per_group;
- }
- return 0;
-}
+++ /dev/null
-/*
- * pass2.c --- check directory structure
- *
- * Copyright (C) 1993, 1994, 1995, 1996, 1997 Theodore Ts'o
- *
- * %Begin-Header%
- * This file may be redistributed under the terms of the GNU Public
- * License.
- * %End-Header%
- *
- * Pass 2 of e2fsck iterates through all active directory inodes, and
- * applies to following tests to each directory entry in the directory
- * blocks in the inodes:
- *
- * - The length of the directory entry (rec_len) should be at
- * least 8 bytes, and no more than the remaining space
- * left in the directory block.
- * - The length of the name in the directory entry (name_len)
- * should be less than (rec_len - 8).
- * - The inode number in the directory entry should be within
- * legal bounds.
- * - The inode number should refer to a in-use inode.
- * - The first entry should be '.', and its inode should be
- * the inode of the directory.
- * - The second entry should be '..'.
- *
- * To minimize disk seek time, the directory blocks are processed in
- * sorted order of block numbers.
- *
- * Pass 2 also collects the following information:
- * - The inode numbers of the subdirectories for each directory.
- *
- * Pass 2 relies on the following information from previous passes:
- * - The directory information collected in pass 1.
- * - The inode_used_map bitmap
- * - The inode_bad_map bitmap
- * - The inode_dir_map bitmap
- *
- * Pass 2 frees the following data structures
- * - The inode_bad_map bitmap
- * - The inode_reg_map bitmap
- */
-
-#define _GNU_SOURCE 1 /* get strnlen() */
-#include <string.h>
-
-#include "e2fsck.h"
-#include "problem.h"
-#include "dict.h"
-
-#ifdef NO_INLINE_FUNCS
-#define _INLINE_
-#else
-#define _INLINE_ inline
-#endif
-
-/* #define DX_DEBUG */
-
-/*
- * Keeps track of how many times an inode is referenced.
- */
-static void deallocate_inode(e2fsck_t ctx, ext2_ino_t ino, char* block_buf);
-static int check_dir_block(ext2_filsys fs,
- struct ext2_db_entry *dir_blocks_info,
- void *priv_data);
-static int allocate_dir_block(e2fsck_t ctx,
- struct ext2_db_entry *dir_blocks_info,
- char *buf, struct problem_context *pctx);
-static int update_dir_block(ext2_filsys fs,
- blk_t *block_nr,
- e2_blkcnt_t blockcnt,
- blk_t ref_block,
- int ref_offset,
- void *priv_data);
-static void clear_htree(e2fsck_t ctx, ext2_ino_t ino);
-static int htree_depth(struct dx_dir_info *dx_dir,
- struct dx_dirblock_info *dx_db);
-static EXT2_QSORT_TYPE special_dir_block_cmp(const void *a, const void *b);
-
-struct check_dir_struct {
- char *buf;
- struct problem_context pctx;
- int count, max;
- e2fsck_t ctx;
-};
-
-void e2fsck_pass2(e2fsck_t ctx)
-{
- struct ext2_super_block *sb = ctx->fs->super;
- struct problem_context pctx;
- ext2_filsys fs = ctx->fs;
- char *buf;
-#ifdef RESOURCE_TRACK
- struct resource_track rtrack;
-#endif
- struct dir_info *dir;
- struct check_dir_struct cd;
- struct dx_dir_info *dx_dir;
- struct dx_dirblock_info *dx_db, *dx_parent;
- int b;
- int i, depth;
- problem_t code;
- int bad_dir;
-
-#ifdef RESOURCE_TRACK
- init_resource_track(&rtrack);
-#endif
-
- clear_problem_context(&cd.pctx);
-
-#ifdef MTRACE
- mtrace_print("Pass 2");
-#endif
-
- if (!(ctx->options & E2F_OPT_PREEN))
- fix_problem(ctx, PR_2_PASS_HEADER, &cd.pctx);
-
- cd.pctx.errcode = ext2fs_create_icount2(fs, EXT2_ICOUNT_OPT_INCREMENT,
- 0, ctx->inode_link_info,
- &ctx->inode_count);
- if (cd.pctx.errcode) {
- fix_problem(ctx, PR_2_ALLOCATE_ICOUNT, &cd.pctx);
- ctx->flags |= E2F_FLAG_ABORT;
- return;
- }
- buf = (char *) e2fsck_allocate_memory(ctx, 2*fs->blocksize,
- "directory scan buffer");
-
- /*
- * Set up the parent pointer for the root directory, if
- * present. (If the root directory is not present, we will
- * create it in pass 3.)
- */
- dir = e2fsck_get_dir_info(ctx, EXT2_ROOT_INO);
- if (dir)
- dir->parent = EXT2_ROOT_INO;
-
- cd.buf = buf;
- cd.ctx = ctx;
- cd.count = 1;
- cd.max = ext2fs_dblist_count(fs->dblist);
-
- if (ctx->progress)
- (void) (ctx->progress)(ctx, 2, 0, cd.max);
-
- if (fs->super->s_feature_compat & EXT2_FEATURE_COMPAT_DIR_INDEX)
- ext2fs_dblist_sort(fs->dblist, special_dir_block_cmp);
-
- cd.pctx.errcode = ext2fs_dblist_iterate(fs->dblist, check_dir_block,
- &cd);
- if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
- return;
- if (cd.pctx.errcode) {
- fix_problem(ctx, PR_2_DBLIST_ITERATE, &cd.pctx);
- ctx->flags |= E2F_FLAG_ABORT;
- return;
- }
-
-#ifdef ENABLE_HTREE
- for (i=0; (dx_dir = e2fsck_dx_dir_info_iter(ctx, &i)) != 0;) {
- if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
- return;
- if (dx_dir->numblocks == 0)
- continue;
- clear_problem_context(&pctx);
- bad_dir = 0;
- pctx.dir = dx_dir->ino;
- dx_db = dx_dir->dx_block;
- if (dx_db->flags & DX_FLAG_REFERENCED)
- dx_db->flags |= DX_FLAG_DUP_REF;
- else
- dx_db->flags |= DX_FLAG_REFERENCED;
- /*
- * Find all of the first and last leaf blocks, and
- * update their parent's min and max hash values
- */
- for (b=0, dx_db = dx_dir->dx_block;
- b < dx_dir->numblocks;
- b++, dx_db++) {
- if ((dx_db->type != DX_DIRBLOCK_LEAF) ||
- !(dx_db->flags & (DX_FLAG_FIRST | DX_FLAG_LAST)))
- continue;
- dx_parent = &dx_dir->dx_block[dx_db->parent];
- /*
- * XXX Make sure dx_parent->min_hash > dx_db->min_hash
- */
- if (dx_db->flags & DX_FLAG_FIRST)
- dx_parent->min_hash = dx_db->min_hash;
- /*
- * XXX Make sure dx_parent->max_hash < dx_db->max_hash
- */
- if (dx_db->flags & DX_FLAG_LAST)
- dx_parent->max_hash = dx_db->max_hash;
- }
-
- for (b=0, dx_db = dx_dir->dx_block;
- b < dx_dir->numblocks;
- b++, dx_db++) {
- pctx.blkcount = b;
- pctx.group = dx_db->parent;
- code = 0;
- if (!(dx_db->flags & DX_FLAG_FIRST) &&
- (dx_db->min_hash < dx_db->node_min_hash)) {
- pctx.blk = dx_db->min_hash;
- pctx.blk2 = dx_db->node_min_hash;
- code = PR_2_HTREE_MIN_HASH;
- fix_problem(ctx, code, &pctx);
- bad_dir++;
- }
- if (dx_db->type == DX_DIRBLOCK_LEAF) {
- depth = htree_depth(dx_dir, dx_db);
- if (depth != dx_dir->depth) {
- code = PR_2_HTREE_BAD_DEPTH;
- fix_problem(ctx, code, &pctx);
- bad_dir++;
- }
- }
- /*
- * This test doesn't apply for the root block
- * at block #0
- */
- if (b &&
- (dx_db->max_hash > dx_db->node_max_hash)) {
- pctx.blk = dx_db->max_hash;
- pctx.blk2 = dx_db->node_max_hash;
- code = PR_2_HTREE_MAX_HASH;
- fix_problem(ctx, code, &pctx);
- bad_dir++;
- }
- if (!(dx_db->flags & DX_FLAG_REFERENCED)) {
- code = PR_2_HTREE_NOTREF;
- fix_problem(ctx, code, &pctx);
- bad_dir++;
- } else if (dx_db->flags & DX_FLAG_DUP_REF) {
- code = PR_2_HTREE_DUPREF;
- fix_problem(ctx, code, &pctx);
- bad_dir++;
- }
- if (code == 0)
- continue;
- }
- if (bad_dir && fix_problem(ctx, PR_2_HTREE_CLEAR, &pctx)) {
- clear_htree(ctx, dx_dir->ino);
- dx_dir->numblocks = 0;
- }
- }
-#endif
- ext2fs_free_mem(&buf);
- ext2fs_free_dblist(fs->dblist);
-
- if (ctx->inode_bad_map) {
- ext2fs_free_inode_bitmap(ctx->inode_bad_map);
- ctx->inode_bad_map = 0;
- }
- if (ctx->inode_reg_map) {
- ext2fs_free_inode_bitmap(ctx->inode_reg_map);
- ctx->inode_reg_map = 0;
- }
-
- clear_problem_context(&pctx);
- if (ctx->large_files) {
- if (!(sb->s_feature_ro_compat &
- EXT2_FEATURE_RO_COMPAT_LARGE_FILE) &&
- fix_problem(ctx, PR_2_FEATURE_LARGE_FILES, &pctx)) {
- sb->s_feature_ro_compat |=
- EXT2_FEATURE_RO_COMPAT_LARGE_FILE;
- ext2fs_mark_super_dirty(fs);
- }
- if (sb->s_rev_level == EXT2_GOOD_OLD_REV &&
- fix_problem(ctx, PR_1_FS_REV_LEVEL, &pctx)) {
- ext2fs_update_dynamic_rev(fs);
- ext2fs_mark_super_dirty(fs);
- }
- } else if (!ctx->large_files &&
- (sb->s_feature_ro_compat &
- EXT2_FEATURE_RO_COMPAT_LARGE_FILE)) {
- if (fs->flags & EXT2_FLAG_RW) {
- sb->s_feature_ro_compat &=
- ~EXT2_FEATURE_RO_COMPAT_LARGE_FILE;
- ext2fs_mark_super_dirty(fs);
- }
- }
-
-#ifdef RESOURCE_TRACK
- if (ctx->options & E2F_OPT_TIME2) {
- e2fsck_clear_progbar(ctx);
- print_resource_track(_("Pass 2"), &rtrack);
- }
-#endif
-}
-
-#define MAX_DEPTH 32000
-static int htree_depth(struct dx_dir_info *dx_dir,
- struct dx_dirblock_info *dx_db)
-{
- int depth = 0;
-
- while (dx_db->type != DX_DIRBLOCK_ROOT && depth < MAX_DEPTH) {
- dx_db = &dx_dir->dx_block[dx_db->parent];
- depth++;
- }
- return depth;
-}
-
-static int dict_de_cmp(const void *a, const void *b)
-{
- const struct ext2_dir_entry *de_a, *de_b;
- int a_len, b_len;
-
- de_a = (const struct ext2_dir_entry *) a;
- a_len = de_a->name_len & 0xFF;
- de_b = (const struct ext2_dir_entry *) b;
- b_len = de_b->name_len & 0xFF;
-
- if (a_len != b_len)
- return (a_len - b_len);
-
- return strncmp(de_a->name, de_b->name, a_len);
-}
-
-/*
- * This is special sort function that makes sure that directory blocks
- * with a dirblock of zero are sorted to the beginning of the list.
- * This guarantees that the root node of the htree directories are
- * processed first, so we know what hash version to use.
- */
-static EXT2_QSORT_TYPE special_dir_block_cmp(const void *a, const void *b)
-{
- const struct ext2_db_entry *db_a =
- (const struct ext2_db_entry *) a;
- const struct ext2_db_entry *db_b =
- (const struct ext2_db_entry *) b;
-
- if (db_a->blockcnt && !db_b->blockcnt)
- return 1;
-
- if (!db_a->blockcnt && db_b->blockcnt)
- return -1;
-
- if (db_a->blk != db_b->blk)
- return (int) (db_a->blk - db_b->blk);
-
- if (db_a->ino != db_b->ino)
- return (int) (db_a->ino - db_b->ino);
-
- return (int) (db_a->blockcnt - db_b->blockcnt);
-}
-
-
-/*
- * Make sure the first entry in the directory is '.', and that the
- * directory entry is sane.
- */
-static int check_dot(e2fsck_t ctx,
- struct ext2_dir_entry *dirent,
- ext2_ino_t ino, struct problem_context *pctx)
-{
- struct ext2_dir_entry *nextdir;
- int status = 0;
- int created = 0;
- int new_len;
- int problem = 0;
-
- if (!dirent->inode)
- problem = PR_2_MISSING_DOT;
- else if (((dirent->name_len & 0xFF) != 1) ||
- (dirent->name[0] != '.'))
- problem = PR_2_1ST_NOT_DOT;
- else if (dirent->name[1] != '\0')
- problem = PR_2_DOT_NULL_TERM;
-
- if (problem) {
- if (fix_problem(ctx, problem, pctx)) {
- if (dirent->rec_len < 12)
- dirent->rec_len = 12;
- dirent->inode = ino;
- dirent->name_len = 1;
- dirent->name[0] = '.';
- dirent->name[1] = '\0';
- status = 1;
- created = 1;
- }
- }
- if (dirent->inode != ino) {
- if (fix_problem(ctx, PR_2_BAD_INODE_DOT, pctx)) {
- dirent->inode = ino;
- status = 1;
- }
- }
- if (dirent->rec_len > 12) {
- new_len = dirent->rec_len - 12;
- if (new_len > 12) {
- if (created ||
- fix_problem(ctx, PR_2_SPLIT_DOT, pctx)) {
- nextdir = (struct ext2_dir_entry *)
- ((char *) dirent + 12);
- dirent->rec_len = 12;
- nextdir->rec_len = new_len;
- nextdir->inode = 0;
- nextdir->name_len = 0;
- status = 1;
- }
- }
- }
- return status;
-}
-
-/*
- * Make sure the second entry in the directory is '..', and that the
- * directory entry is sane. We do not check the inode number of '..'
- * here; this gets done in pass 3.
- */
-static int check_dotdot(e2fsck_t ctx,
- struct ext2_dir_entry *dirent,
- struct dir_info *dir, struct problem_context *pctx)
-{
- int problem = 0;
-
- if (!dirent->inode)
- problem = PR_2_MISSING_DOT_DOT;
- else if (((dirent->name_len & 0xFF) != 2) ||
- (dirent->name[0] != '.') ||
- (dirent->name[1] != '.'))
- problem = PR_2_2ND_NOT_DOT_DOT;
- else if (dirent->name[2] != '\0')
- problem = PR_2_DOT_DOT_NULL_TERM;
-
- if (problem) {
- if (fix_problem(ctx, problem, pctx)) {
- if (dirent->rec_len < 12)
- dirent->rec_len = 12;
- /*
- * Note: we don't have the parent inode just
- * yet, so we will fill it in with the root
- * inode. This will get fixed in pass 3.
- */
- dirent->inode = EXT2_ROOT_INO;
- dirent->name_len = 2;
- dirent->name[0] = '.';
- dirent->name[1] = '.';
- dirent->name[2] = '\0';
- return 1;
- }
- return 0;
- }
- dir->dotdot = dirent->inode;
- return 0;
-}
-
-/*
- * Check to make sure a directory entry doesn't contain any illegal
- * characters.
- */
-static int check_name(e2fsck_t ctx,
- struct ext2_dir_entry *dirent,
- ext2_ino_t dir_ino EXT2FS_ATTR((unused)),
- struct problem_context *pctx)
-{
- int i;
- int fixup = -1;
- int ret = 0;
-
- for ( i = 0; i < (dirent->name_len & 0xFF); i++) {
- if (dirent->name[i] == '/' || dirent->name[i] == '\0') {
- if (fixup < 0) {
- fixup = fix_problem(ctx, PR_2_BAD_NAME, pctx);
- }
- if (fixup) {
- dirent->name[i] = '.';
- ret = 1;
- }
- }
- }
- return ret;
-}
-
-/*
- * Check the directory filetype (if present)
- */
-static _INLINE_ int check_filetype(e2fsck_t ctx,
- struct ext2_dir_entry *dirent,
- ext2_ino_t dir_ino EXT2FS_ATTR((unused)),
- struct problem_context *pctx)
-{
- int filetype = dirent->name_len >> 8;
- int should_be = EXT2_FT_UNKNOWN;
- struct ext2_inode inode;
-
- if (!(ctx->fs->super->s_feature_incompat &
- EXT2_FEATURE_INCOMPAT_FILETYPE)) {
- if (filetype == 0 ||
- !fix_problem(ctx, PR_2_CLEAR_FILETYPE, pctx))
- return 0;
- dirent->name_len = dirent->name_len & 0xFF;
- return 1;
- }
-
- if (ext2fs_test_inode_bitmap(ctx->inode_dir_map, dirent->inode)) {
- should_be = EXT2_FT_DIR;
- } else if (ext2fs_test_inode_bitmap(ctx->inode_reg_map,
- dirent->inode)) {
- should_be = EXT2_FT_REG_FILE;
- } else if (ctx->inode_bad_map &&
- ext2fs_test_inode_bitmap(ctx->inode_bad_map,
- dirent->inode))
- should_be = 0;
- else {
- e2fsck_read_inode(ctx, dirent->inode, &inode,
- "check_filetype");
- should_be = ext2_file_type(inode.i_mode);
- }
- if (filetype == should_be)
- return 0;
- pctx->num = should_be;
-
- if (fix_problem(ctx, filetype ? PR_2_BAD_FILETYPE : PR_2_SET_FILETYPE,
- pctx) == 0)
- return 0;
-
- dirent->name_len = (dirent->name_len & 0xFF) | should_be << 8;
- return 1;
-}
-
-#ifdef ENABLE_HTREE
-static void parse_int_node(ext2_filsys fs,
- struct ext2_db_entry *db,
- struct check_dir_struct *cd,
- struct dx_dir_info *dx_dir,
- char *block_buf)
-{
- struct ext2_dx_root_info *root;
- struct ext2_dx_entry *ent;
- struct ext2_dx_countlimit *limit;
- struct dx_dirblock_info *dx_db;
- int i, expect_limit, count;
- blk_t blk;
- ext2_dirhash_t min_hash = 0xffffffff;
- ext2_dirhash_t max_hash = 0;
- ext2_dirhash_t hash = 0, prev_hash;
-
- if (db->blockcnt == 0) {
- root = (struct ext2_dx_root_info *) (block_buf + 24);
-
-#ifdef DX_DEBUG
- printf("Root node dump:\n");
- printf("\t Reserved zero: %d\n", root->reserved_zero);
- printf("\t Hash Version: %d\n", root->hash_version);
- printf("\t Info length: %d\n", root->info_length);
- printf("\t Indirect levels: %d\n", root->indirect_levels);
- printf("\t Flags: %d\n", root->unused_flags);
-#endif
-
- ent = (struct ext2_dx_entry *) (block_buf + 24 + root->info_length);
- } else {
- ent = (struct ext2_dx_entry *) (block_buf+8);
- }
- limit = (struct ext2_dx_countlimit *) ent;
-
-#ifdef DX_DEBUG
- printf("Number of entries (count): %d\n",
- ext2fs_le16_to_cpu(limit->count));
- printf("Number of entries (limit): %d\n",
- ext2fs_le16_to_cpu(limit->limit));
-#endif
-
- count = ext2fs_le16_to_cpu(limit->count);
- expect_limit = (fs->blocksize - ((char *) ent - block_buf)) /
- sizeof(struct ext2_dx_entry);
- if (ext2fs_le16_to_cpu(limit->limit) != expect_limit) {
- cd->pctx.num = ext2fs_le16_to_cpu(limit->limit);
- if (fix_problem(cd->ctx, PR_2_HTREE_BAD_LIMIT, &cd->pctx))
- goto clear_and_exit;
- }
- if (count > expect_limit) {
- cd->pctx.num = count;
- if (fix_problem(cd->ctx, PR_2_HTREE_BAD_COUNT, &cd->pctx))
- goto clear_and_exit;
- count = expect_limit;
- }
-
- for (i=0; i < count; i++) {
- prev_hash = hash;
- hash = i ? (ext2fs_le32_to_cpu(ent[i].hash) & ~1) : 0;
-#ifdef DX_DEBUG
- printf("Entry #%d: Hash 0x%08x, block %d\n", i,
- hash, ext2fs_le32_to_cpu(ent[i].block));
-#endif
- blk = ext2fs_le32_to_cpu(ent[i].block) & 0x0ffffff;
- /* Check to make sure the block is valid */
- if (blk > (blk_t) dx_dir->numblocks) {
- cd->pctx.blk = blk;
- if (fix_problem(cd->ctx, PR_2_HTREE_BADBLK,
- &cd->pctx))
- goto clear_and_exit;
- }
- if (hash < prev_hash &&
- fix_problem(cd->ctx, PR_2_HTREE_HASH_ORDER, &cd->pctx))
- goto clear_and_exit;
- dx_db = &dx_dir->dx_block[blk];
- if (dx_db->flags & DX_FLAG_REFERENCED) {
- dx_db->flags |= DX_FLAG_DUP_REF;
- } else {
- dx_db->flags |= DX_FLAG_REFERENCED;
- dx_db->parent = db->blockcnt;
- }
- if (hash < min_hash)
- min_hash = hash;
- if (hash > max_hash)
- max_hash = hash;
- dx_db->node_min_hash = hash;
- if ((i+1) < count)
- dx_db->node_max_hash =
- ext2fs_le32_to_cpu(ent[i+1].hash) & ~1;
- else {
- dx_db->node_max_hash = 0xfffffffe;
- dx_db->flags |= DX_FLAG_LAST;
- }
- if (i == 0)
- dx_db->flags |= DX_FLAG_FIRST;
- }
-#ifdef DX_DEBUG
- printf("Blockcnt = %d, min hash 0x%08x, max hash 0x%08x\n",
- db->blockcnt, min_hash, max_hash);
-#endif
- dx_db = &dx_dir->dx_block[db->blockcnt];
- dx_db->min_hash = min_hash;
- dx_db->max_hash = max_hash;
- return;
-
-clear_and_exit:
- clear_htree(cd->ctx, cd->pctx.ino);
- dx_dir->numblocks = 0;
-}
-#endif /* ENABLE_HTREE */
-
-/*
- * Given a busted directory, try to salvage it somehow.
- *
- */
-static void salvage_directory(ext2_filsys fs,
- struct ext2_dir_entry *dirent,
- struct ext2_dir_entry *prev,
- unsigned int *offset)
-{
- char *cp = (char *) dirent;
- int left = fs->blocksize - *offset - dirent->rec_len;
- int name_len = dirent->name_len & 0xFF;
-
- /*
- * Special case of directory entry of size 8: copy what's left
- * of the directory block up to cover up the invalid hole.
- */
- if ((left >= 12) && (dirent->rec_len == 8)) {
- memmove(cp, cp+8, left);
- memset(cp + left, 0, 8);
- return;
- }
- /*
- * If the directory entry overruns the end of the directory
- * block, and the name is small enough to fit, then adjust the
- * record length.
- */
- if ((left < 0) &&
- (name_len + 8 <= dirent->rec_len + left) &&
- dirent->inode <= fs->super->s_inodes_count &&
- strnlen(dirent->name, name_len) == name_len) {
- dirent->rec_len += left;
- return;
- }
- /*
- * If the directory entry is a multiple of four, so it is
- * valid, let the previous directory entry absorb the invalid
- * one.
- */
- if (prev && dirent->rec_len && (dirent->rec_len % 4) == 0) {
- prev->rec_len += dirent->rec_len;
- *offset += dirent->rec_len;
- return;
- }
- /*
- * Default salvage method --- kill all of the directory
- * entries for the rest of the block. We will either try to
- * absorb it into the previous directory entry, or create a
- * new empty directory entry the rest of the directory block.
- */
- if (prev) {
- prev->rec_len += fs->blocksize - *offset;
- *offset = fs->blocksize;
- } else {
- dirent->rec_len = fs->blocksize - *offset;
- dirent->name_len = 0;
- dirent->inode = 0;
- }
-}
-
-static int check_dir_block(ext2_filsys fs,
- struct ext2_db_entry *db,
- void *priv_data)
-{
- struct dir_info *subdir, *dir;
- struct dx_dir_info *dx_dir;
-#ifdef ENABLE_HTREE
- struct dx_dirblock_info *dx_db = 0;
-#endif /* ENABLE_HTREE */
- struct ext2_dir_entry *dirent, *prev;
- ext2_dirhash_t hash;
- unsigned int offset = 0;
- int dir_modified = 0;
- int dot_state;
- blk_t block_nr = db->blk;
- ext2_ino_t ino = db->ino;
- __u16 links;
- struct check_dir_struct *cd;
- char *buf;
- e2fsck_t ctx;
- int problem;
- struct ext2_dx_root_info *root;
- struct ext2_dx_countlimit *limit;
- static dict_t de_dict;
- struct problem_context pctx;
- int dups_found = 0;
-
- cd = (struct check_dir_struct *) priv_data;
- buf = cd->buf;
- ctx = cd->ctx;
-
- if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
- return DIRENT_ABORT;
-
- if (ctx->progress && (ctx->progress)(ctx, 2, cd->count++, cd->max))
- return DIRENT_ABORT;
-
- /*
- * Make sure the inode is still in use (could have been
- * deleted in the duplicate/bad blocks pass.
- */
- if (!(ext2fs_test_inode_bitmap(ctx->inode_used_map, ino)))
- return 0;
-
- cd->pctx.ino = ino;
- cd->pctx.blk = block_nr;
- cd->pctx.blkcount = db->blockcnt;
- cd->pctx.ino2 = 0;
- cd->pctx.dirent = 0;
- cd->pctx.num = 0;
-
- if (db->blk == 0) {
- if (allocate_dir_block(ctx, db, buf, &cd->pctx))
- return 0;
- block_nr = db->blk;
- }
-
- if (db->blockcnt)
- dot_state = 2;
- else
- dot_state = 0;
-
- if (ctx->dirs_to_hash &&
- ext2fs_u32_list_test(ctx->dirs_to_hash, ino))
- dups_found++;
-
-#if 0
- printf("In process_dir_block block %lu, #%d, inode %lu\n", block_nr,
- db->blockcnt, ino);
-#endif
-
- cd->pctx.errcode = ext2fs_read_dir_block(fs, block_nr, buf);
- if (cd->pctx.errcode == EXT2_ET_DIR_CORRUPTED)
- cd->pctx.errcode = 0; /* We'll handle this ourselves */
- if (cd->pctx.errcode) {
- if (!fix_problem(ctx, PR_2_READ_DIRBLOCK, &cd->pctx)) {
- ctx->flags |= E2F_FLAG_ABORT;
- return DIRENT_ABORT;
- }
- memset(buf, 0, fs->blocksize);
- }
-#ifdef ENABLE_HTREE
- dx_dir = e2fsck_get_dx_dir_info(ctx, ino);
- if (dx_dir && dx_dir->numblocks) {
- if (db->blockcnt >= dx_dir->numblocks) {
- printf("XXX should never happen!!!\n");
- abort();
- }
- dx_db = &dx_dir->dx_block[db->blockcnt];
- dx_db->type = DX_DIRBLOCK_LEAF;
- dx_db->phys = block_nr;
- dx_db->min_hash = ~0;
- dx_db->max_hash = 0;
-
- dirent = (struct ext2_dir_entry *) buf;
- limit = (struct ext2_dx_countlimit *) (buf+8);
- if (db->blockcnt == 0) {
- root = (struct ext2_dx_root_info *) (buf + 24);
- dx_db->type = DX_DIRBLOCK_ROOT;
- dx_db->flags |= DX_FLAG_FIRST | DX_FLAG_LAST;
- if ((root->reserved_zero ||
- root->info_length < 8 ||
- root->indirect_levels > 1) &&
- fix_problem(ctx, PR_2_HTREE_BAD_ROOT, &cd->pctx)) {
- clear_htree(ctx, ino);
- dx_dir->numblocks = 0;
- dx_db = 0;
- }
- dx_dir->hashversion = root->hash_version;
- dx_dir->depth = root->indirect_levels + 1;
- } else if ((dirent->inode == 0) &&
- (dirent->rec_len == fs->blocksize) &&
- (dirent->name_len == 0) &&
- (ext2fs_le16_to_cpu(limit->limit) ==
- ((fs->blocksize-8) /
- sizeof(struct ext2_dx_entry))))
- dx_db->type = DX_DIRBLOCK_NODE;
- }
-#endif /* ENABLE_HTREE */
-
- dict_init(&de_dict, DICTCOUNT_T_MAX, dict_de_cmp);
- prev = 0;
- do {
- problem = 0;
- dirent = (struct ext2_dir_entry *) (buf + offset);
- cd->pctx.dirent = dirent;
- cd->pctx.num = offset;
- if (((offset + dirent->rec_len) > fs->blocksize) ||
- (dirent->rec_len < 12) ||
- ((dirent->rec_len % 4) != 0) ||
- (((dirent->name_len & 0xFF)+8) > dirent->rec_len)) {
- if (fix_problem(ctx, PR_2_DIR_CORRUPTED, &cd->pctx)) {
- salvage_directory(fs, dirent, prev, &offset);
- dir_modified++;
- continue;
- } else
- goto abort_free_dict;
- }
- if ((dirent->name_len & 0xFF) > EXT2_NAME_LEN) {
- if (fix_problem(ctx, PR_2_FILENAME_LONG, &cd->pctx)) {
- dirent->name_len = EXT2_NAME_LEN;
- dir_modified++;
- }
- }
-
- if (dot_state == 0) {
- if (check_dot(ctx, dirent, ino, &cd->pctx))
- dir_modified++;
- } else if (dot_state == 1) {
- dir = e2fsck_get_dir_info(ctx, ino);
- if (!dir) {
- fix_problem(ctx, PR_2_NO_DIRINFO, &cd->pctx);
- goto abort_free_dict;
- }
- if (check_dotdot(ctx, dirent, dir, &cd->pctx))
- dir_modified++;
- } else if (dirent->inode == ino) {
- problem = PR_2_LINK_DOT;
- if (fix_problem(ctx, PR_2_LINK_DOT, &cd->pctx)) {
- dirent->inode = 0;
- dir_modified++;
- goto next;
- }
- }
- if (!dirent->inode)
- goto next;
-
- /*
- * Make sure the inode listed is a legal one.
- */
- if (((dirent->inode != EXT2_ROOT_INO) &&
- (dirent->inode < EXT2_FIRST_INODE(fs->super))) ||
- (dirent->inode > fs->super->s_inodes_count)) {
- problem = PR_2_BAD_INO;
- } else if (!(ext2fs_test_inode_bitmap(ctx->inode_used_map,
- dirent->inode))) {
- /*
- * If the inode is unused, offer to clear it.
- */
- problem = PR_2_UNUSED_INODE;
- } else if (ctx->inode_bb_map &&
- (ext2fs_test_inode_bitmap(ctx->inode_bb_map,
- dirent->inode))) {
- /*
- * If the inode is in a bad block, offer to
- * clear it.
- */
- problem = PR_2_BB_INODE;
- } else if ((dot_state > 1) &&
- ((dirent->name_len & 0xFF) == 1) &&
- (dirent->name[0] == '.')) {
- /*
- * If there's a '.' entry in anything other
- * than the first directory entry, it's a
- * duplicate entry that should be removed.
- */
- problem = PR_2_DUP_DOT;
- } else if ((dot_state > 1) &&
- ((dirent->name_len & 0xFF) == 2) &&
- (dirent->name[0] == '.') &&
- (dirent->name[1] == '.')) {
- /*
- * If there's a '..' entry in anything other
- * than the second directory entry, it's a
- * duplicate entry that should be removed.
- */
- problem = PR_2_DUP_DOT_DOT;
- } else if ((dot_state > 1) &&
- (dirent->inode == EXT2_ROOT_INO)) {
- /*
- * Don't allow links to the root directory.
- * We check this specially to make sure we
- * catch this error case even if the root
- * directory hasn't been created yet.
- */
- problem = PR_2_LINK_ROOT;
- } else if ((dot_state > 1) &&
- (dirent->name_len & 0xFF) == 0) {
- /*
- * Don't allow zero-length directory names.
- */
- problem = PR_2_NULL_NAME;
- }
-
- if (problem) {
- if (fix_problem(ctx, problem, &cd->pctx)) {
- dirent->inode = 0;
- dir_modified++;
- goto next;
- } else {
- ext2fs_unmark_valid(fs);
- if (problem == PR_2_BAD_INO)
- goto next;
- }
- }
-
- /*
- * If the inode was marked as having bad fields in
- * pass1, process it and offer to fix/clear it.
- * (We wait until now so that we can display the
- * pathname to the user.)
- */
- if (ctx->inode_bad_map &&
- ext2fs_test_inode_bitmap(ctx->inode_bad_map,
- dirent->inode)) {
- if (e2fsck_process_bad_inode(ctx, ino,
- dirent->inode,
- buf + fs->blocksize)) {
- dirent->inode = 0;
- dir_modified++;
- goto next;
- }
- if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
- return DIRENT_ABORT;
- }
-
- if (check_name(ctx, dirent, ino, &cd->pctx))
- dir_modified++;
-
- if (check_filetype(ctx, dirent, ino, &cd->pctx))
- dir_modified++;
-
-#ifdef ENABLE_HTREE
- if (dx_db) {
- ext2fs_dirhash(dx_dir->hashversion, dirent->name,
- (dirent->name_len & 0xFF),
- fs->super->s_hash_seed, &hash, 0);
- if (hash < dx_db->min_hash)
- dx_db->min_hash = hash;
- if (hash > dx_db->max_hash)
- dx_db->max_hash = hash;
- }
-#endif
-
- /*
- * If this is a directory, then mark its parent in its
- * dir_info structure. If the parent field is already
- * filled in, then this directory has more than one
- * hard link. We assume the first link is correct,
- * and ask the user if he/she wants to clear this one.
- */
- if ((dot_state > 1) &&
- (ext2fs_test_inode_bitmap(ctx->inode_dir_map,
- dirent->inode))) {
- subdir = e2fsck_get_dir_info(ctx, dirent->inode);
- if (!subdir) {
- cd->pctx.ino = dirent->inode;
- fix_problem(ctx, PR_2_NO_DIRINFO, &cd->pctx);
- goto abort_free_dict;
- }
- if (subdir->parent) {
- cd->pctx.ino2 = subdir->parent;
- if (fix_problem(ctx, PR_2_LINK_DIR,
- &cd->pctx)) {
- dirent->inode = 0;
- dir_modified++;
- goto next;
- }
- cd->pctx.ino2 = 0;
- } else
- subdir->parent = ino;
- }
-
- if (dups_found) {
- ;
- } else if (dict_lookup(&de_dict, dirent)) {
- clear_problem_context(&pctx);
- pctx.ino = ino;
- pctx.dirent = dirent;
- fix_problem(ctx, PR_2_REPORT_DUP_DIRENT, &pctx);
- if (!ctx->dirs_to_hash)
- ext2fs_u32_list_create(&ctx->dirs_to_hash, 50);
- if (ctx->dirs_to_hash)
- ext2fs_u32_list_add(ctx->dirs_to_hash, ino);
- dups_found++;
- } else
- dict_alloc_insert(&de_dict, dirent, dirent);
-
- ext2fs_icount_increment(ctx->inode_count, dirent->inode,
- &links);
- if (links > 1)
- ctx->fs_links_count++;
- ctx->fs_total_count++;
- next:
- prev = dirent;
- offset += dirent->rec_len;
- dot_state++;
- } while (offset < fs->blocksize);
-#if 0
- printf("\n");
-#endif
-#ifdef ENABLE_HTREE
- if (dx_db) {
-#ifdef DX_DEBUG
- printf("db_block %d, type %d, min_hash 0x%0x, max_hash 0x%0x\n",
- db->blockcnt, dx_db->type,
- dx_db->min_hash, dx_db->max_hash);
-#endif
- cd->pctx.dir = cd->pctx.ino;
- if ((dx_db->type == DX_DIRBLOCK_ROOT) ||
- (dx_db->type == DX_DIRBLOCK_NODE))
- parse_int_node(fs, db, cd, dx_dir, buf);
- }
-#endif /* ENABLE_HTREE */
- if (offset != fs->blocksize) {
- cd->pctx.num = dirent->rec_len - fs->blocksize + offset;
- if (fix_problem(ctx, PR_2_FINAL_RECLEN, &cd->pctx)) {
- dirent->rec_len = cd->pctx.num;
- dir_modified++;
- }
- }
- if (dir_modified) {
- cd->pctx.errcode = ext2fs_write_dir_block(fs, block_nr, buf);
- if (cd->pctx.errcode) {
- if (!fix_problem(ctx, PR_2_WRITE_DIRBLOCK,
- &cd->pctx))
- goto abort_free_dict;
- }
- ext2fs_mark_changed(fs);
- }
- dict_free_nodes(&de_dict);
- return 0;
-abort_free_dict:
- dict_free_nodes(&de_dict);
- ctx->flags |= E2F_FLAG_ABORT;
- return DIRENT_ABORT;
-}
-
-/*
- * This function is called to deallocate a block, and is an interator
- * functioned called by deallocate inode via ext2fs_iterate_block().
- */
-static int deallocate_inode_block(ext2_filsys fs,
- blk_t *block_nr,
- e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
- blk_t ref_block EXT2FS_ATTR((unused)),
- int ref_offset EXT2FS_ATTR((unused)),
- void *priv_data)
-{
- e2fsck_t ctx = (e2fsck_t) priv_data;
-
- if (HOLE_BLKADDR(*block_nr))
- return 0;
- if ((*block_nr < fs->super->s_first_data_block) ||
- (*block_nr >= fs->super->s_blocks_count))
- return 0;
- ext2fs_unmark_block_bitmap(ctx->block_found_map, *block_nr);
- ext2fs_block_alloc_stats(fs, *block_nr, -1);
- return 0;
-}
-
-/*
- * This fuction deallocates an inode
- */
-static void deallocate_inode(e2fsck_t ctx, ext2_ino_t ino, char* block_buf)
-{
- ext2_filsys fs = ctx->fs;
- struct ext2_inode inode;
- struct problem_context pctx;
- __u32 count;
-
- ext2fs_icount_store(ctx->inode_link_info, ino, 0);
- e2fsck_read_inode(ctx, ino, &inode, "deallocate_inode");
- inode.i_links_count = 0;
- inode.i_dtime = time(0);
- e2fsck_write_inode(ctx, ino, &inode, "deallocate_inode");
- clear_problem_context(&pctx);
- pctx.ino = ino;
-
- /*
- * Fix up the bitmaps...
- */
- e2fsck_read_bitmaps(ctx);
- ext2fs_unmark_inode_bitmap(ctx->inode_used_map, ino);
- ext2fs_unmark_inode_bitmap(ctx->inode_dir_map, ino);
- if (ctx->inode_bad_map)
- ext2fs_unmark_inode_bitmap(ctx->inode_bad_map, ino);
- ext2fs_inode_alloc_stats2(fs, ino, -1, LINUX_S_ISDIR(inode.i_mode));
-
- if (inode.i_file_acl &&
- (fs->super->s_feature_compat & EXT2_FEATURE_COMPAT_EXT_ATTR)) {
- pctx.errcode = ext2fs_adjust_ea_refcount(fs, inode.i_file_acl,
- block_buf, -1, &count);
- if (pctx.errcode == EXT2_ET_BAD_EA_BLOCK_NUM) {
- pctx.errcode = 0;
- count = 1;
- }
- if (pctx.errcode) {
- pctx.blk = inode.i_file_acl;
- fix_problem(ctx, PR_2_ADJ_EA_REFCOUNT, &pctx);
- ctx->flags |= E2F_FLAG_ABORT;
- return;
- }
- if (count == 0) {
- ext2fs_unmark_block_bitmap(ctx->block_found_map,
- inode.i_file_acl);
- ext2fs_block_alloc_stats(fs, inode.i_file_acl, -1);
- }
- inode.i_file_acl = 0;
- }
-
- if (!ext2fs_inode_has_valid_blocks(&inode))
- return;
-
- if (LINUX_S_ISREG(inode.i_mode) &&
- (inode.i_size_high || inode.i_size & 0x80000000UL))
- ctx->large_files--;
-
- pctx.errcode = ext2fs_block_iterate2(fs, ino, 0, block_buf,
- deallocate_inode_block, ctx);
- if (pctx.errcode) {
- fix_problem(ctx, PR_2_DEALLOC_INODE, &pctx);
- ctx->flags |= E2F_FLAG_ABORT;
- return;
- }
-}
-
-/*
- * This fuction clears the htree flag on an inode
- */
-static void clear_htree(e2fsck_t ctx, ext2_ino_t ino)
-{
- struct ext2_inode inode;
-
- e2fsck_read_inode(ctx, ino, &inode, "clear_htree");
- inode.i_flags = inode.i_flags & ~EXT2_INDEX_FL;
- e2fsck_write_inode(ctx, ino, &inode, "clear_htree");
- if (ctx->dirs_to_hash)
- ext2fs_u32_list_add(ctx->dirs_to_hash, ino);
-}
-
-
-extern int e2fsck_process_bad_inode(e2fsck_t ctx, ext2_ino_t dir,
- ext2_ino_t ino, char *buf)
-{
- ext2_filsys fs = ctx->fs;
- struct ext2_inode inode;
- int inode_modified = 0;
- int not_fixed = 0;
- unsigned char *frag, *fsize;
- struct problem_context pctx;
- int problem = 0;
-
- e2fsck_read_inode(ctx, ino, &inode, "process_bad_inode");
-
- clear_problem_context(&pctx);
- pctx.ino = ino;
- pctx.dir = dir;
- pctx.inode = &inode;
-
- if (inode.i_file_acl &&
- !(fs->super->s_feature_compat & EXT2_FEATURE_COMPAT_EXT_ATTR) &&
- fix_problem(ctx, PR_2_FILE_ACL_ZERO, &pctx)) {
- inode.i_file_acl = 0;
-#ifdef EXT2FS_ENABLE_SWAPFS
- /*
- * This is a special kludge to deal with long symlinks
- * on big endian systems. i_blocks had already been
- * decremented earlier in pass 1, but since i_file_acl
- * hadn't yet been cleared, ext2fs_read_inode()
- * assumed that the file was short symlink and would
- * not have byte swapped i_block[0]. Hence, we have
- * to byte-swap it here.
- */
- if (LINUX_S_ISLNK(inode.i_mode) &&
- (fs->flags & EXT2_FLAG_SWAP_BYTES) &&
- (inode.i_blocks == fs->blocksize >> 9))
- inode.i_block[0] = ext2fs_swab32(inode.i_block[0]);
-#endif
- inode_modified++;
- } else
- not_fixed++;
-
- if (!LINUX_S_ISDIR(inode.i_mode) && !LINUX_S_ISREG(inode.i_mode) &&
- !LINUX_S_ISCHR(inode.i_mode) && !LINUX_S_ISBLK(inode.i_mode) &&
- !LINUX_S_ISLNK(inode.i_mode) && !LINUX_S_ISFIFO(inode.i_mode) &&
- !(LINUX_S_ISSOCK(inode.i_mode)))
- problem = PR_2_BAD_MODE;
- else if (LINUX_S_ISCHR(inode.i_mode)
- && !e2fsck_pass1_check_device_inode(fs, &inode))
- problem = PR_2_BAD_CHAR_DEV;
- else if (LINUX_S_ISBLK(inode.i_mode)
- && !e2fsck_pass1_check_device_inode(fs, &inode))
- problem = PR_2_BAD_BLOCK_DEV;
- else if (LINUX_S_ISFIFO(inode.i_mode)
- && !e2fsck_pass1_check_device_inode(fs, &inode))
- problem = PR_2_BAD_FIFO;
- else if (LINUX_S_ISSOCK(inode.i_mode)
- && !e2fsck_pass1_check_device_inode(fs, &inode))
- problem = PR_2_BAD_SOCKET;
- else if (LINUX_S_ISLNK(inode.i_mode)
- && !e2fsck_pass1_check_symlink(fs, &inode, buf)) {
- problem = PR_2_INVALID_SYMLINK;
- }
-
- if (problem) {
- if (fix_problem(ctx, problem, &pctx)) {
- deallocate_inode(ctx, ino, 0);
- if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
- return 0;
- return 1;
- } else
- not_fixed++;
- problem = 0;
- }
-
- if (inode.i_faddr) {
- if (fix_problem(ctx, PR_2_FADDR_ZERO, &pctx)) {
- inode.i_faddr = 0;
- inode_modified++;
- } else
- not_fixed++;
- }
-
- switch (fs->super->s_creator_os) {
- case EXT2_OS_LINUX:
- frag = &inode.osd2.linux2.l_i_frag;
- fsize = &inode.osd2.linux2.l_i_fsize;
- break;
- case EXT2_OS_HURD:
- frag = &inode.osd2.hurd2.h_i_frag;
- fsize = &inode.osd2.hurd2.h_i_fsize;
- break;
- case EXT2_OS_MASIX:
- frag = &inode.osd2.masix2.m_i_frag;
- fsize = &inode.osd2.masix2.m_i_fsize;
- break;
- default:
- frag = fsize = 0;
- }
- if (frag && *frag) {
- pctx.num = *frag;
- if (fix_problem(ctx, PR_2_FRAG_ZERO, &pctx)) {
- *frag = 0;
- inode_modified++;
- } else
- not_fixed++;
- pctx.num = 0;
- }
- if (fsize && *fsize) {
- pctx.num = *fsize;
- if (fix_problem(ctx, PR_2_FSIZE_ZERO, &pctx)) {
- *fsize = 0;
- inode_modified++;
- } else
- not_fixed++;
- pctx.num = 0;
- }
-
- if (inode.i_file_acl &&
- ((inode.i_file_acl < fs->super->s_first_data_block) ||
- (inode.i_file_acl >= fs->super->s_blocks_count))) {
- if (fix_problem(ctx, PR_2_FILE_ACL_BAD, &pctx)) {
- inode.i_file_acl = 0;
- inode_modified++;
- } else
- not_fixed++;
- }
- if (inode.i_dir_acl &&
- LINUX_S_ISDIR(inode.i_mode)) {
- if (fix_problem(ctx, PR_2_DIR_ACL_ZERO, &pctx)) {
- inode.i_dir_acl = 0;
- inode_modified++;
- } else
- not_fixed++;
- }
-
- if (inode_modified)
- e2fsck_write_inode(ctx, ino, &inode, "process_bad_inode");
- if (!not_fixed)
- ext2fs_unmark_inode_bitmap(ctx->inode_bad_map, ino);
- return 0;
-}
-
-
-/*
- * allocate_dir_block --- this function allocates a new directory
- * block for a particular inode; this is done if a directory has
- * a "hole" in it, or if a directory has a illegal block number
- * that was zeroed out and now needs to be replaced.
- */
-static int allocate_dir_block(e2fsck_t ctx,
- struct ext2_db_entry *db,
- char *buf EXT2FS_ATTR((unused)),
- struct problem_context *pctx)
-{
- ext2_filsys fs = ctx->fs;
- blk_t blk;
- char *block;
- struct ext2_inode inode;
-
- if (fix_problem(ctx, PR_2_DIRECTORY_HOLE, pctx) == 0)
- return 1;
-
- /*
- * Read the inode and block bitmaps in; we'll be messing with
- * them.
- */
- e2fsck_read_bitmaps(ctx);
-
- /*
- * First, find a free block
- */
- pctx->errcode = ext2fs_new_block(fs, 0, ctx->block_found_map, &blk);
- if (pctx->errcode) {
- pctx->str = "ext2fs_new_block";
- fix_problem(ctx, PR_2_ALLOC_DIRBOCK, pctx);
- return 1;
- }
- ext2fs_mark_block_bitmap(ctx->block_found_map, blk);
- ext2fs_mark_block_bitmap(fs->block_map, blk);
- ext2fs_mark_bb_dirty(fs);
-
- /*
- * Now let's create the actual data block for the inode
- */
- if (db->blockcnt)
- pctx->errcode = ext2fs_new_dir_block(fs, 0, 0, &block);
- else
- pctx->errcode = ext2fs_new_dir_block(fs, db->ino,
- EXT2_ROOT_INO, &block);
-
- if (pctx->errcode) {
- pctx->str = "ext2fs_new_dir_block";
- fix_problem(ctx, PR_2_ALLOC_DIRBOCK, pctx);
- return 1;
- }
-
- pctx->errcode = ext2fs_write_dir_block(fs, blk, block);
- ext2fs_free_mem(&block);
- if (pctx->errcode) {
- pctx->str = "ext2fs_write_dir_block";
- fix_problem(ctx, PR_2_ALLOC_DIRBOCK, pctx);
- return 1;
- }
-
- /*
- * Update the inode block count
- */
- e2fsck_read_inode(ctx, db->ino, &inode, "allocate_dir_block");
- inode.i_blocks += fs->blocksize / 512;
- if (inode.i_size < (db->blockcnt+1) * fs->blocksize)
- inode.i_size = (db->blockcnt+1) * fs->blocksize;
- e2fsck_write_inode(ctx, db->ino, &inode, "allocate_dir_block");
-
- /*
- * Finally, update the block pointers for the inode
- */
- db->blk = blk;
- pctx->errcode = ext2fs_block_iterate2(fs, db->ino, BLOCK_FLAG_HOLE,
- 0, update_dir_block, db);
- if (pctx->errcode) {
- pctx->str = "ext2fs_block_iterate";
- fix_problem(ctx, PR_2_ALLOC_DIRBOCK, pctx);
- return 1;
- }
-
- return 0;
-}
-
-/*
- * This is a helper function for allocate_dir_block().
- */
-static int update_dir_block(ext2_filsys fs EXT2FS_ATTR((unused)),
- blk_t *block_nr,
- e2_blkcnt_t blockcnt,
- blk_t ref_block EXT2FS_ATTR((unused)),
- int ref_offset EXT2FS_ATTR((unused)),
- void *priv_data)
-{
- struct ext2_db_entry *db;
-
- db = (struct ext2_db_entry *) priv_data;
- if (db->blockcnt == (int) blockcnt) {
- *block_nr = db->blk;
- return BLOCK_CHANGED;
- }
- return 0;
-}
+++ /dev/null
-/*
- * pass3.c -- pass #3 of e2fsck: Check for directory connectivity
- *
- * Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999 Theodore Ts'o.
- *
- * %Begin-Header%
- * This file may be redistributed under the terms of the GNU Public
- * License.
- * %End-Header%
- *
- * Pass #3 assures that all directories are connected to the
- * filesystem tree, using the following algorithm:
- *
- * First, the root directory is checked to make sure it exists; if
- * not, e2fsck will offer to create a new one. It is then marked as
- * "done".
- *
- * Then, pass3 interates over all directory inodes; for each directory
- * it attempts to trace up the filesystem tree, using dirinfo.parent
- * until it reaches a directory which has been marked "done". If it
- * can not do so, then the directory must be disconnected, and e2fsck
- * will offer to reconnect it to /lost+found. While it is chasing
- * parent pointers up the filesystem tree, if pass3 sees a directory
- * twice, then it has detected a filesystem loop, and it will again
- * offer to reconnect the directory to /lost+found in to break the
- * filesystem loop.
- *
- * Pass 3 also contains the subroutine, e2fsck_reconnect_file() to
- * reconnect inodes to /lost+found; this subroutine is also used by
- * pass 4. e2fsck_reconnect_file() calls get_lost_and_found(), which
- * is responsible for creating /lost+found if it does not exist.
- *
- * Pass 3 frees the following data structures:
- * - The dirinfo directory information cache.
- */
-
-#ifdef HAVE_ERRNO_H
-#include <errno.h>
-#endif
-
-#include "e2fsck.h"
-#include "problem.h"
-
-static void check_root(e2fsck_t ctx);
-static int check_directory(e2fsck_t ctx, struct dir_info *dir,
- struct problem_context *pctx);
-static void fix_dotdot(e2fsck_t ctx, struct dir_info *dir, ext2_ino_t parent);
-
-static ext2fs_inode_bitmap inode_loop_detect = 0;
-static ext2fs_inode_bitmap inode_done_map = 0;
-
-void e2fsck_pass3(e2fsck_t ctx)
-{
- ext2_filsys fs = ctx->fs;
- int i;
-#ifdef RESOURCE_TRACK
- struct resource_track rtrack;
-#endif
- struct problem_context pctx;
- struct dir_info *dir;
- unsigned long maxdirs, count;
-
-#ifdef RESOURCE_TRACK
- init_resource_track(&rtrack);
-#endif
-
- clear_problem_context(&pctx);
-
-#ifdef MTRACE
- mtrace_print("Pass 3");
-#endif
-
- if (!(ctx->options & E2F_OPT_PREEN))
- fix_problem(ctx, PR_3_PASS_HEADER, &pctx);
-
- /*
- * Allocate some bitmaps to do loop detection.
- */
- pctx.errcode = ext2fs_allocate_inode_bitmap(fs, _("inode done bitmap"),
- &inode_done_map);
- if (pctx.errcode) {
- pctx.num = 2;
- fix_problem(ctx, PR_3_ALLOCATE_IBITMAP_ERROR, &pctx);
- ctx->flags |= E2F_FLAG_ABORT;
- goto abort_exit;
- }
-#ifdef RESOURCE_TRACK
- if (ctx->options & E2F_OPT_TIME) {
- e2fsck_clear_progbar(ctx);
- print_resource_track(_("Peak memory"), &ctx->global_rtrack);
- }
-#endif
-
- check_root(ctx);
- if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
- goto abort_exit;
-
- ext2fs_mark_inode_bitmap(inode_done_map, EXT2_ROOT_INO);
-
- maxdirs = e2fsck_get_num_dirinfo(ctx);
- count = 1;
-
- if (ctx->progress)
- if ((ctx->progress)(ctx, 3, 0, maxdirs))
- goto abort_exit;
-
- for (i=0; (dir = e2fsck_dir_info_iter(ctx, &i)) != 0;) {
- if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
- goto abort_exit;
- if (ctx->progress && (ctx->progress)(ctx, 3, count++, maxdirs))
- goto abort_exit;
- if (ext2fs_test_inode_bitmap(ctx->inode_dir_map, dir->ino))
- if (check_directory(ctx, dir, &pctx))
- goto abort_exit;
- }
-
- /*
- * Force the creation of /lost+found if not present
- */
- if ((ctx->flags & E2F_OPT_READONLY) == 0)
- e2fsck_get_lost_and_found(ctx, 1);
-
- /*
- * If there are any directories that need to be indexed or
- * optimized, do it here.
- */
- e2fsck_rehash_directories(ctx);
-
-abort_exit:
- e2fsck_free_dir_info(ctx);
- if (inode_loop_detect) {
- ext2fs_free_inode_bitmap(inode_loop_detect);
- inode_loop_detect = 0;
- }
- if (inode_done_map) {
- ext2fs_free_inode_bitmap(inode_done_map);
- inode_done_map = 0;
- }
-
-#ifdef RESOURCE_TRACK
- if (ctx->options & E2F_OPT_TIME2) {
- e2fsck_clear_progbar(ctx);
- print_resource_track(_("Pass 3"), &rtrack);
- }
-#endif
-}
-
-/*
- * This makes sure the root inode is present; if not, we ask if the
- * user wants us to create it. Not creating it is a fatal error.
- */
-static void check_root(e2fsck_t ctx)
-{
- ext2_filsys fs = ctx->fs;
- blk_t blk;
- struct ext2_inode inode;
- char * block;
- struct problem_context pctx;
-
- clear_problem_context(&pctx);
-
- if (ext2fs_test_inode_bitmap(ctx->inode_used_map, EXT2_ROOT_INO)) {
- /*
- * If the root inode is not a directory, die here. The
- * user must have answered 'no' in pass1 when we
- * offered to clear it.
- */
- if (!(ext2fs_test_inode_bitmap(ctx->inode_dir_map,
- EXT2_ROOT_INO))) {
- fix_problem(ctx, PR_3_ROOT_NOT_DIR_ABORT, &pctx);
- ctx->flags |= E2F_FLAG_ABORT;
- }
- return;
- }
-
- if (!fix_problem(ctx, PR_3_NO_ROOT_INODE, &pctx)) {
- fix_problem(ctx, PR_3_NO_ROOT_INODE_ABORT, &pctx);
- ctx->flags |= E2F_FLAG_ABORT;
- return;
- }
-
- e2fsck_read_bitmaps(ctx);
-
- /*
- * First, find a free block
- */
- pctx.errcode = ext2fs_new_block(fs, 0, ctx->block_found_map, &blk);
- if (pctx.errcode) {
- pctx.str = "ext2fs_new_block";
- fix_problem(ctx, PR_3_CREATE_ROOT_ERROR, &pctx);
- ctx->flags |= E2F_FLAG_ABORT;
- return;
- }
- ext2fs_mark_block_bitmap(ctx->block_found_map, blk);
- ext2fs_mark_block_bitmap(fs->block_map, blk);
- ext2fs_mark_bb_dirty(fs);
-
- /*
- * Now let's create the actual data block for the inode
- */
- pctx.errcode = ext2fs_new_dir_block(fs, EXT2_ROOT_INO, EXT2_ROOT_INO,
- &block);
- if (pctx.errcode) {
- pctx.str = "ext2fs_new_dir_block";
- fix_problem(ctx, PR_3_CREATE_ROOT_ERROR, &pctx);
- ctx->flags |= E2F_FLAG_ABORT;
- return;
- }
-
- pctx.errcode = ext2fs_write_dir_block(fs, blk, block);
- if (pctx.errcode) {
- pctx.str = "ext2fs_write_dir_block";
- fix_problem(ctx, PR_3_CREATE_ROOT_ERROR, &pctx);
- ctx->flags |= E2F_FLAG_ABORT;
- return;
- }
- ext2fs_free_mem(&block);
-
- /*
- * Set up the inode structure
- */
- memset(&inode, 0, sizeof(inode));
- inode.i_mode = 040755;
- inode.i_size = fs->blocksize;
- inode.i_atime = inode.i_ctime = inode.i_mtime = time(0);
- inode.i_links_count = 2;
- inode.i_blocks = fs->blocksize / 512;
- inode.i_block[0] = blk;
-
- /*
- * Write out the inode.
- */
- pctx.errcode = ext2fs_write_new_inode(fs, EXT2_ROOT_INO, &inode);
- if (pctx.errcode) {
- pctx.str = "ext2fs_write_inode";
- fix_problem(ctx, PR_3_CREATE_ROOT_ERROR, &pctx);
- ctx->flags |= E2F_FLAG_ABORT;
- return;
- }
-
- /*
- * Miscellaneous bookkeeping...
- */
- e2fsck_add_dir_info(ctx, EXT2_ROOT_INO, EXT2_ROOT_INO);
- ext2fs_icount_store(ctx->inode_count, EXT2_ROOT_INO, 2);
- ext2fs_icount_store(ctx->inode_link_info, EXT2_ROOT_INO, 2);
-
- ext2fs_mark_inode_bitmap(ctx->inode_used_map, EXT2_ROOT_INO);
- ext2fs_mark_inode_bitmap(ctx->inode_dir_map, EXT2_ROOT_INO);
- ext2fs_mark_inode_bitmap(fs->inode_map, EXT2_ROOT_INO);
- ext2fs_mark_ib_dirty(fs);
-}
-
-/*
- * This subroutine is responsible for making sure that a particular
- * directory is connected to the root; if it isn't we trace it up as
- * far as we can go, and then offer to connect the resulting parent to
- * the lost+found. We have to do loop detection; if we ever discover
- * a loop, we treat that as a disconnected directory and offer to
- * reparent it to lost+found.
- *
- * However, loop detection is expensive, because for very large
- * filesystems, the inode_loop_detect bitmap is huge, and clearing it
- * is non-trivial. Loops in filesystems are also a rare error case,
- * and we shouldn't optimize for error cases. So we try two passes of
- * the algorithm. The first time, we ignore loop detection and merely
- * increment a counter; if the counter exceeds some extreme threshold,
- * then we try again with the loop detection bitmap enabled.
- */
-static int check_directory(e2fsck_t ctx, struct dir_info *dir,
- struct problem_context *pctx)
-{
- ext2_filsys fs = ctx->fs;
- struct dir_info *p = dir;
- int loop_pass = 0, parent_count = 0;
-
- if (!p)
- return 0;
-
- while (1) {
- /*
- * Mark this inode as being "done"; by the time we
- * return from this function, the inode we either be
- * verified as being connected to the directory tree,
- * or we will have offered to reconnect this to
- * lost+found.
- *
- * If it was marked done already, then we've reached a
- * parent we've already checked.
- */
- if (ext2fs_mark_inode_bitmap(inode_done_map, p->ino))
- break;
-
- /*
- * If this directory doesn't have a parent, or we've
- * seen the parent once already, then offer to
- * reparent it to lost+found
- */
- if (!p->parent ||
- (loop_pass &&
- (ext2fs_test_inode_bitmap(inode_loop_detect,
- p->parent)))) {
- pctx->ino = p->ino;
- if (fix_problem(ctx, PR_3_UNCONNECTED_DIR, pctx)) {
- if (e2fsck_reconnect_file(ctx, pctx->ino))
- ext2fs_unmark_valid(fs);
- else {
- p = e2fsck_get_dir_info(ctx, pctx->ino);
- p->parent = ctx->lost_and_found;
- fix_dotdot(ctx, p, ctx->lost_and_found);
- }
- }
- break;
- }
- p = e2fsck_get_dir_info(ctx, p->parent);
- if (!p) {
- fix_problem(ctx, PR_3_NO_DIRINFO, pctx);
- return 0;
- }
- if (loop_pass) {
- ext2fs_mark_inode_bitmap(inode_loop_detect,
- p->ino);
- } else if (parent_count++ > 2048) {
- /*
- * If we've run into a path depth that's
- * greater than 2048, try again with the inode
- * loop bitmap turned on and start from the
- * top.
- */
- loop_pass = 1;
- if (inode_loop_detect)
- ext2fs_clear_inode_bitmap(inode_loop_detect);
- else {
- pctx->errcode = ext2fs_allocate_inode_bitmap(fs, _("inode loop detection bitmap"), &inode_loop_detect);
- if (pctx->errcode) {
- pctx->num = 1;
- fix_problem(ctx,
- PR_3_ALLOCATE_IBITMAP_ERROR, pctx);
- ctx->flags |= E2F_FLAG_ABORT;
- return -1;
- }
- }
- p = dir;
- }
- }
-
- /*
- * Make sure that .. and the parent directory are the same;
- * offer to fix it if not.
- */
- if (dir->parent != dir->dotdot) {
- pctx->ino = dir->ino;
- pctx->ino2 = dir->dotdot;
- pctx->dir = dir->parent;
- if (fix_problem(ctx, PR_3_BAD_DOT_DOT, pctx))
- fix_dotdot(ctx, dir, dir->parent);
- }
- return 0;
-}
-
-/*
- * This routine gets the lost_and_found inode, making it a directory
- * if necessary
- */
-ext2_ino_t e2fsck_get_lost_and_found(e2fsck_t ctx, int fix)
-{
- ext2_filsys fs = ctx->fs;
- ext2_ino_t ino;
- blk_t blk;
- errcode_t retval;
- struct ext2_inode inode;
- char * block;
- static const char name[] = "lost+found";
- struct problem_context pctx;
- struct dir_info *dirinfo;
-
- if (ctx->lost_and_found)
- return ctx->lost_and_found;
-
- clear_problem_context(&pctx);
-
- retval = ext2fs_lookup(fs, EXT2_ROOT_INO, name,
- sizeof(name)-1, 0, &ino);
- if (retval && !fix)
- return 0;
- if (!retval) {
- if (ext2fs_test_inode_bitmap(ctx->inode_dir_map, ino)) {
- ctx->lost_and_found = ino;
- return ino;
- }
-
- /* Lost+found isn't a directory! */
- if (!fix)
- return 0;
- pctx.ino = ino;
- if (!fix_problem(ctx, PR_3_LPF_NOTDIR, &pctx))
- return 0;
-
- /* OK, unlink the old /lost+found file. */
- pctx.errcode = ext2fs_unlink(fs, EXT2_ROOT_INO, name, ino, 0);
- if (pctx.errcode) {
- pctx.str = "ext2fs_unlink";
- fix_problem(ctx, PR_3_CREATE_LPF_ERROR, &pctx);
- return 0;
- }
- dirinfo = e2fsck_get_dir_info(ctx, ino);
- if (dirinfo)
- dirinfo->parent = 0;
- e2fsck_adjust_inode_count(ctx, ino, -1);
- } else if (retval != EXT2_ET_FILE_NOT_FOUND) {
- pctx.errcode = retval;
- fix_problem(ctx, PR_3_ERR_FIND_LPF, &pctx);
- }
- if (!fix_problem(ctx, PR_3_NO_LF_DIR, 0))
- return 0;
-
- /*
- * Read the inode and block bitmaps in; we'll be messing with
- * them.
- */
- e2fsck_read_bitmaps(ctx);
-
- /*
- * First, find a free block
- */
- retval = ext2fs_new_block(fs, 0, ctx->block_found_map, &blk);
- if (retval) {
- pctx.errcode = retval;
- fix_problem(ctx, PR_3_ERR_LPF_NEW_BLOCK, &pctx);
- return 0;
- }
- ext2fs_mark_block_bitmap(ctx->block_found_map, blk);
- ext2fs_block_alloc_stats(fs, blk, +1);
-
- /*
- * Next find a free inode.
- */
- retval = ext2fs_new_inode(fs, EXT2_ROOT_INO, 040700,
- ctx->inode_used_map, &ino);
- if (retval) {
- pctx.errcode = retval;
- fix_problem(ctx, PR_3_ERR_LPF_NEW_INODE, &pctx);
- return 0;
- }
- ext2fs_mark_inode_bitmap(ctx->inode_used_map, ino);
- ext2fs_mark_inode_bitmap(ctx->inode_dir_map, ino);
- ext2fs_inode_alloc_stats2(fs, ino, +1, 1);
-
- /*
- * Now let's create the actual data block for the inode
- */
- retval = ext2fs_new_dir_block(fs, ino, EXT2_ROOT_INO, &block);
- if (retval) {
- pctx.errcode = retval;
- fix_problem(ctx, PR_3_ERR_LPF_NEW_DIR_BLOCK, &pctx);
- return 0;
- }
-
- retval = ext2fs_write_dir_block(fs, blk, block);
- ext2fs_free_mem(&block);
- if (retval) {
- pctx.errcode = retval;
- fix_problem(ctx, PR_3_ERR_LPF_WRITE_BLOCK, &pctx);
- return 0;
- }
-
- /*
- * Set up the inode structure
- */
- memset(&inode, 0, sizeof(inode));
- inode.i_mode = 040700;
- inode.i_size = fs->blocksize;
- inode.i_atime = inode.i_ctime = inode.i_mtime = time(0);
- inode.i_links_count = 2;
- inode.i_blocks = fs->blocksize / 512;
- inode.i_block[0] = blk;
-
- /*
- * Next, write out the inode.
- */
- pctx.errcode = ext2fs_write_new_inode(fs, ino, &inode);
- if (pctx.errcode) {
- pctx.str = "ext2fs_write_inode";
- fix_problem(ctx, PR_3_CREATE_LPF_ERROR, &pctx);
- return 0;
- }
- /*
- * Finally, create the directory link
- */
- pctx.errcode = ext2fs_link(fs, EXT2_ROOT_INO, name, ino, EXT2_FT_DIR);
- if (pctx.errcode) {
- pctx.str = "ext2fs_link";
- fix_problem(ctx, PR_3_CREATE_LPF_ERROR, &pctx);
- return 0;
- }
-
- /*
- * Miscellaneous bookkeeping that needs to be kept straight.
- */
- e2fsck_add_dir_info(ctx, ino, EXT2_ROOT_INO);
- e2fsck_adjust_inode_count(ctx, EXT2_ROOT_INO, 1);
- ext2fs_icount_store(ctx->inode_count, ino, 2);
- ext2fs_icount_store(ctx->inode_link_info, ino, 2);
- ctx->lost_and_found = ino;
-#if 0
- printf("/lost+found created; inode #%lu\n", ino);
-#endif
- return ino;
-}
-
-/*
- * This routine will connect a file to lost+found
- */
-int e2fsck_reconnect_file(e2fsck_t ctx, ext2_ino_t ino)
-{
- ext2_filsys fs = ctx->fs;
- errcode_t retval;
- char name[80];
- struct problem_context pctx;
- struct ext2_inode inode;
- int file_type = 0;
-
- clear_problem_context(&pctx);
- pctx.ino = ino;
-
- if (!ctx->bad_lost_and_found && !ctx->lost_and_found) {
- if (e2fsck_get_lost_and_found(ctx, 1) == 0)
- ctx->bad_lost_and_found++;
- }
- if (ctx->bad_lost_and_found) {
- fix_problem(ctx, PR_3_NO_LPF, &pctx);
- return 1;
- }
-
- sprintf(name, "#%u", ino);
- if (ext2fs_read_inode(fs, ino, &inode) == 0)
- file_type = ext2_file_type(inode.i_mode);
- retval = ext2fs_link(fs, ctx->lost_and_found, name, ino, file_type);
- if (retval == EXT2_ET_DIR_NO_SPACE) {
- if (!fix_problem(ctx, PR_3_EXPAND_LF_DIR, &pctx))
- return 1;
- retval = e2fsck_expand_directory(ctx, ctx->lost_and_found,
- 1, 0);
- if (retval) {
- pctx.errcode = retval;
- fix_problem(ctx, PR_3_CANT_EXPAND_LPF, &pctx);
- return 1;
- }
- retval = ext2fs_link(fs, ctx->lost_and_found, name,
- ino, file_type);
- }
- if (retval) {
- pctx.errcode = retval;
- fix_problem(ctx, PR_3_CANT_RECONNECT, &pctx);
- return 1;
- }
- e2fsck_adjust_inode_count(ctx, ino, 1);
-
- return 0;
-}
-
-/*
- * Utility routine to adjust the inode counts on an inode.
- */
-errcode_t e2fsck_adjust_inode_count(e2fsck_t ctx, ext2_ino_t ino, int adj)
-{
- ext2_filsys fs = ctx->fs;
- errcode_t retval;
- struct ext2_inode inode;
-
- if (!ino)
- return 0;
-
- retval = ext2fs_read_inode(fs, ino, &inode);
- if (retval)
- return retval;
-
-#if 0
- printf("Adjusting link count for inode %lu by %d (from %d)\n", ino, adj,
- inode.i_links_count);
-#endif
-
- if (adj == 1) {
- ext2fs_icount_increment(ctx->inode_count, ino, 0);
- if (inode.i_links_count == (__u16) ~0)
- return 0;
- ext2fs_icount_increment(ctx->inode_link_info, ino, 0);
- inode.i_links_count++;
- } else if (adj == -1) {
- ext2fs_icount_decrement(ctx->inode_count, ino, 0);
- if (inode.i_links_count == 0)
- return 0;
- ext2fs_icount_decrement(ctx->inode_link_info, ino, 0);
- inode.i_links_count--;
- }
-
- retval = ext2fs_write_inode(fs, ino, &inode);
- if (retval)
- return retval;
-
- return 0;
-}
-
-/*
- * Fix parent --- this routine fixes up the parent of a directory.
- */
-struct fix_dotdot_struct {
- ext2_filsys fs;
- ext2_ino_t parent;
- int done;
- e2fsck_t ctx;
-};
-
-static int fix_dotdot_proc(struct ext2_dir_entry *dirent,
- int offset EXT2FS_ATTR((unused)),
- int blocksize EXT2FS_ATTR((unused)),
- char *buf EXT2FS_ATTR((unused)),
- void *priv_data)
-{
- struct fix_dotdot_struct *fp = (struct fix_dotdot_struct *) priv_data;
- errcode_t retval;
- struct problem_context pctx;
-
- if ((dirent->name_len & 0xFF) != 2)
- return 0;
- if (strncmp(dirent->name, "..", 2))
- return 0;
-
- clear_problem_context(&pctx);
-
- retval = e2fsck_adjust_inode_count(fp->ctx, dirent->inode, -1);
- if (retval) {
- pctx.errcode = retval;
- fix_problem(fp->ctx, PR_3_ADJUST_INODE, &pctx);
- }
- retval = e2fsck_adjust_inode_count(fp->ctx, fp->parent, 1);
- if (retval) {
- pctx.errcode = retval;
- fix_problem(fp->ctx, PR_3_ADJUST_INODE, &pctx);
- }
- dirent->inode = fp->parent;
-
- fp->done++;
- return DIRENT_ABORT | DIRENT_CHANGED;
-}
-
-static void fix_dotdot(e2fsck_t ctx, struct dir_info *dir, ext2_ino_t parent)
-{
- ext2_filsys fs = ctx->fs;
- errcode_t retval;
- struct fix_dotdot_struct fp;
- struct problem_context pctx;
-
- fp.fs = fs;
- fp.parent = parent;
- fp.done = 0;
- fp.ctx = ctx;
-
-#if 0
- printf("Fixing '..' of inode %lu to be %lu...\n", dir->ino, parent);
-#endif
-
- retval = ext2fs_dir_iterate(fs, dir->ino, DIRENT_FLAG_INCLUDE_EMPTY,
- 0, fix_dotdot_proc, &fp);
- if (retval || !fp.done) {
- clear_problem_context(&pctx);
- pctx.ino = dir->ino;
- pctx.errcode = retval;
- fix_problem(ctx, retval ? PR_3_FIX_PARENT_ERR :
- PR_3_FIX_PARENT_NOFIND, &pctx);
- ext2fs_unmark_valid(fs);
- }
- dir->dotdot = parent;
-
- return;
-}
-
-/*
- * These routines are responsible for expanding a /lost+found if it is
- * too small.
- */
-
-struct expand_dir_struct {
- int num;
- int guaranteed_size;
- int newblocks;
- int last_block;
- errcode_t err;
- e2fsck_t ctx;
-};
-
-static int expand_dir_proc(ext2_filsys fs,
- blk_t *blocknr,
- e2_blkcnt_t blockcnt,
- blk_t ref_block EXT2FS_ATTR((unused)),
- int ref_offset EXT2FS_ATTR((unused)),
- void *priv_data)
-{
- struct expand_dir_struct *es = (struct expand_dir_struct *) priv_data;
- blk_t new_blk;
- static blk_t last_blk = 0;
- char *block;
- errcode_t retval;
- e2fsck_t ctx;
-
- ctx = es->ctx;
-
- if (es->guaranteed_size && blockcnt >= es->guaranteed_size)
- return BLOCK_ABORT;
-
- if (blockcnt > 0)
- es->last_block = blockcnt;
- if (*blocknr) {
- last_blk = *blocknr;
- return 0;
- }
- retval = ext2fs_new_block(fs, last_blk, ctx->block_found_map,
- &new_blk);
- if (retval) {
- es->err = retval;
- return BLOCK_ABORT;
- }
- if (blockcnt > 0) {
- retval = ext2fs_new_dir_block(fs, 0, 0, &block);
- if (retval) {
- es->err = retval;
- return BLOCK_ABORT;
- }
- es->num--;
- retval = ext2fs_write_dir_block(fs, new_blk, block);
- } else {
- retval = ext2fs_get_mem(fs->blocksize, &block);
- if (retval) {
- es->err = retval;
- return BLOCK_ABORT;
- }
- memset(block, 0, fs->blocksize);
- retval = io_channel_write_blk(fs->io, new_blk, 1, block);
- }
- if (retval) {
- es->err = retval;
- return BLOCK_ABORT;
- }
- ext2fs_free_mem(&block);
- *blocknr = new_blk;
- ext2fs_mark_block_bitmap(ctx->block_found_map, new_blk);
- ext2fs_block_alloc_stats(fs, new_blk, +1);
- es->newblocks++;
-
- if (es->num == 0)
- return (BLOCK_CHANGED | BLOCK_ABORT);
- else
- return BLOCK_CHANGED;
-}
-
-errcode_t e2fsck_expand_directory(e2fsck_t ctx, ext2_ino_t dir,
- int num, int guaranteed_size)
-{
- ext2_filsys fs = ctx->fs;
- errcode_t retval;
- struct expand_dir_struct es;
- struct ext2_inode inode;
-
- if (!(fs->flags & EXT2_FLAG_RW))
- return EXT2_ET_RO_FILSYS;
-
- /*
- * Read the inode and block bitmaps in; we'll be messing with
- * them.
- */
- e2fsck_read_bitmaps(ctx);
-
- retval = ext2fs_check_directory(fs, dir);
- if (retval)
- return retval;
-
- es.num = num;
- es.guaranteed_size = guaranteed_size;
- es.last_block = 0;
- es.err = 0;
- es.newblocks = 0;
- es.ctx = ctx;
-
- retval = ext2fs_block_iterate2(fs, dir, BLOCK_FLAG_APPEND,
- 0, expand_dir_proc, &es);
-
- if (es.err)
- return es.err;
-
- /*
- * Update the size and block count fields in the inode.
- */
- retval = ext2fs_read_inode(fs, dir, &inode);
- if (retval)
- return retval;
-
- inode.i_size = (es.last_block + 1) * fs->blocksize;
- inode.i_blocks += (fs->blocksize / 512) * es.newblocks;
-
- e2fsck_write_inode(ctx, dir, &inode, "expand_directory");
-
- return 0;
-}
-
+++ /dev/null
-/*
- * pass4.c -- pass #4 of e2fsck: Check reference counts
- *
- * Copyright (C) 1993, 1994, 1995, 1996, 1997 Theodore Ts'o.
- *
- * %Begin-Header%
- * This file may be redistributed under the terms of the GNU Public
- * License.
- * %End-Header%
- *
- * Pass 4 frees the following data structures:
- * - A bitmap of which inodes are in bad blocks. (inode_bb_map)
- * - A bitmap of which inodes are imagic inodes. (inode_imagic_map)
- */
-
-#include "e2fsck.h"
-#include "problem.h"
-
-/*
- * This routine is called when an inode is not connected to the
- * directory tree.
- *
- * This subroutine returns 1 then the caller shouldn't bother with the
- * rest of the pass 4 tests.
- */
-static int disconnect_inode(e2fsck_t ctx, ext2_ino_t i)
-{
- ext2_filsys fs = ctx->fs;
- struct ext2_inode inode;
- struct problem_context pctx;
-
- e2fsck_read_inode(ctx, i, &inode, "pass4: disconnect_inode");
- clear_problem_context(&pctx);
- pctx.ino = i;
- pctx.inode = &inode;
-
- /*
- * Offer to delete any zero-length files that does not have
- * blocks. If there is an EA block, it might have useful
- * information, so we won't prompt to delete it, but let it be
- * reconnected to lost+found.
- */
- if (!inode.i_blocks && (LINUX_S_ISREG(inode.i_mode) ||
- LINUX_S_ISDIR(inode.i_mode))) {
- if (fix_problem(ctx, PR_4_ZERO_LEN_INODE, &pctx)) {
- ext2fs_icount_store(ctx->inode_link_info, i, 0);
- inode.i_links_count = 0;
- inode.i_dtime = time(0);
- e2fsck_write_inode(ctx, i, &inode,
- "disconnect_inode");
- /*
- * Fix up the bitmaps...
- */
- e2fsck_read_bitmaps(ctx);
- ext2fs_unmark_inode_bitmap(ctx->inode_used_map, i);
- ext2fs_unmark_inode_bitmap(ctx->inode_dir_map, i);
- ext2fs_inode_alloc_stats2(fs, i, -1,
- LINUX_S_ISDIR(inode.i_mode));
- return 0;
- }
- }
-
- /*
- * Prompt to reconnect.
- */
- if (fix_problem(ctx, PR_4_UNATTACHED_INODE, &pctx)) {
- if (e2fsck_reconnect_file(ctx, i))
- ext2fs_unmark_valid(fs);
- } else {
- /*
- * If we don't attach the inode, then skip the
- * i_links_test since there's no point in trying to
- * force i_links_count to zero.
- */
- ext2fs_unmark_valid(fs);
- return 1;
- }
- return 0;
-}
-
-
-void e2fsck_pass4(e2fsck_t ctx)
-{
- ext2_filsys fs = ctx->fs;
- ext2_ino_t i;
- struct ext2_inode inode;
-#ifdef RESOURCE_TRACK
- struct resource_track rtrack;
-#endif
- struct problem_context pctx;
- __u16 link_count, link_counted;
- char *buf = 0;
- int group, maxgroup;
-
-#ifdef RESOURCE_TRACK
- init_resource_track(&rtrack);
-#endif
-
-#ifdef MTRACE
- mtrace_print("Pass 4");
-#endif
-
- clear_problem_context(&pctx);
-
- if (!(ctx->options & E2F_OPT_PREEN))
- fix_problem(ctx, PR_4_PASS_HEADER, &pctx);
-
- group = 0;
- maxgroup = fs->group_desc_count;
- if (ctx->progress)
- if ((ctx->progress)(ctx, 4, 0, maxgroup))
- return;
-
- for (i=1; i <= fs->super->s_inodes_count; i++) {
- if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
- return;
- if ((i % fs->super->s_inodes_per_group) == 0) {
- group++;
- if (ctx->progress)
- if ((ctx->progress)(ctx, 4, group, maxgroup))
- return;
- }
- if (i == EXT2_BAD_INO ||
- (i > EXT2_ROOT_INO && i < EXT2_FIRST_INODE(fs->super)))
- continue;
- if (!(ext2fs_test_inode_bitmap(ctx->inode_used_map, i)) ||
- (ctx->inode_imagic_map &&
- ext2fs_test_inode_bitmap(ctx->inode_imagic_map, i)) ||
- (ctx->inode_bb_map &&
- ext2fs_test_inode_bitmap(ctx->inode_bb_map, i)))
- continue;
- ext2fs_icount_fetch(ctx->inode_link_info, i, &link_count);
- ext2fs_icount_fetch(ctx->inode_count, i, &link_counted);
- if (link_counted == 0) {
- if (!buf)
- buf = e2fsck_allocate_memory(ctx,
- fs->blocksize, "bad_inode buffer");
- if (e2fsck_process_bad_inode(ctx, 0, i, buf))
- continue;
- if (disconnect_inode(ctx, i))
- continue;
- ext2fs_icount_fetch(ctx->inode_link_info, i,
- &link_count);
- ext2fs_icount_fetch(ctx->inode_count, i,
- &link_counted);
- }
- if (link_counted != link_count) {
- e2fsck_read_inode(ctx, i, &inode, "pass4");
- pctx.ino = i;
- pctx.inode = &inode;
- if (link_count != inode.i_links_count) {
- pctx.num = link_count;
- fix_problem(ctx,
- PR_4_INCONSISTENT_COUNT, &pctx);
- }
- pctx.num = link_counted;
- if (fix_problem(ctx, PR_4_BAD_REF_COUNT, &pctx)) {
- inode.i_links_count = link_counted;
- e2fsck_write_inode(ctx, i, &inode, "pass4");
- }
- }
- }
- ext2fs_free_icount(ctx->inode_link_info); ctx->inode_link_info = 0;
- ext2fs_free_icount(ctx->inode_count); ctx->inode_count = 0;
- ext2fs_free_inode_bitmap(ctx->inode_bb_map);
- ctx->inode_bb_map = 0;
- ext2fs_free_inode_bitmap(ctx->inode_imagic_map);
- ctx->inode_imagic_map = 0;
- if (buf)
- ext2fs_free_mem(&buf);
-#ifdef RESOURCE_TRACK
- if (ctx->options & E2F_OPT_TIME2) {
- e2fsck_clear_progbar(ctx);
- print_resource_track(_("Pass 4"), &rtrack);
- }
-#endif
-}
-
+++ /dev/null
-/*
- * pass5.c --- check block and inode bitmaps against on-disk bitmaps
- *
- * Copyright (C) 1993, 1994, 1995, 1996, 1997 Theodore Ts'o.
- *
- * %Begin-Header%
- * This file may be redistributed under the terms of the GNU Public
- * License.
- * %End-Header%
- *
- */
-
-#include "e2fsck.h"
-#include "problem.h"
-
-static void check_block_bitmaps(e2fsck_t ctx);
-static void check_inode_bitmaps(e2fsck_t ctx);
-static void check_inode_end(e2fsck_t ctx);
-static void check_block_end(e2fsck_t ctx);
-
-void e2fsck_pass5(e2fsck_t ctx)
-{
-#ifdef RESOURCE_TRACK
- struct resource_track rtrack;
-#endif
- struct problem_context pctx;
-
-#ifdef MTRACE
- mtrace_print("Pass 5");
-#endif
-
-#ifdef RESOURCE_TRACK
- init_resource_track(&rtrack);
-#endif
-
- clear_problem_context(&pctx);
-
- if (!(ctx->options & E2F_OPT_PREEN))
- fix_problem(ctx, PR_5_PASS_HEADER, &pctx);
-
- if (ctx->progress)
- if ((ctx->progress)(ctx, 5, 0, ctx->fs->group_desc_count*2))
- return;
-
- e2fsck_read_bitmaps(ctx);
-
- check_block_bitmaps(ctx);
- if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
- return;
- check_inode_bitmaps(ctx);
- if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
- return;
- check_inode_end(ctx);
- if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
- return;
- check_block_end(ctx);
- if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
- return;
-
- ext2fs_free_inode_bitmap(ctx->inode_used_map);
- ctx->inode_used_map = 0;
- ext2fs_free_inode_bitmap(ctx->inode_dir_map);
- ctx->inode_dir_map = 0;
- ext2fs_free_block_bitmap(ctx->block_found_map);
- ctx->block_found_map = 0;
-
-#ifdef RESOURCE_TRACK
- if (ctx->options & E2F_OPT_TIME2) {
- e2fsck_clear_progbar(ctx);
- print_resource_track(_("Pass 5"), &rtrack);
- }
-#endif
-}
-
-#define NO_BLK ((blk_t) -1)
-
-static void print_bitmap_problem(e2fsck_t ctx, int problem,
- struct problem_context *pctx)
-{
- switch (problem) {
- case PR_5_BLOCK_UNUSED:
- if (pctx->blk == pctx->blk2)
- pctx->blk2 = 0;
- else
- problem = PR_5_BLOCK_RANGE_UNUSED;
- break;
- case PR_5_BLOCK_USED:
- if (pctx->blk == pctx->blk2)
- pctx->blk2 = 0;
- else
- problem = PR_5_BLOCK_RANGE_USED;
- break;
- case PR_5_INODE_UNUSED:
- if (pctx->ino == pctx->ino2)
- pctx->ino2 = 0;
- else
- problem = PR_5_INODE_RANGE_UNUSED;
- break;
- case PR_5_INODE_USED:
- if (pctx->ino == pctx->ino2)
- pctx->ino2 = 0;
- else
- problem = PR_5_INODE_RANGE_USED;
- break;
- }
- fix_problem(ctx, problem, pctx);
- pctx->blk = pctx->blk2 = NO_BLK;
- pctx->ino = pctx->ino2 = 0;
-}
-
-static void check_block_bitmaps(e2fsck_t ctx)
-{
- ext2_filsys fs = ctx->fs;
- blk_t i;
- int *free_array;
- int group = 0;
- unsigned int blocks = 0;
- unsigned int free_blocks = 0;
- int group_free = 0;
- int actual, bitmap;
- struct problem_context pctx;
- int problem, save_problem, fixit, had_problem;
- errcode_t retval;
-
- clear_problem_context(&pctx);
- free_array = (int *) e2fsck_allocate_memory(ctx,
- fs->group_desc_count * sizeof(int), "free block count array");
-
- if ((fs->super->s_first_data_block <
- ext2fs_get_block_bitmap_start(ctx->block_found_map)) ||
- (fs->super->s_blocks_count-1 >
- ext2fs_get_block_bitmap_end(ctx->block_found_map))) {
- pctx.num = 1;
- pctx.blk = fs->super->s_first_data_block;
- pctx.blk2 = fs->super->s_blocks_count -1;
- pctx.ino = ext2fs_get_block_bitmap_start(ctx->block_found_map);
- pctx.ino2 = ext2fs_get_block_bitmap_end(ctx->block_found_map);
- fix_problem(ctx, PR_5_BMAP_ENDPOINTS, &pctx);
-
- ctx->flags |= E2F_FLAG_ABORT; /* fatal */
- return;
- }
-
- if ((fs->super->s_first_data_block <
- ext2fs_get_block_bitmap_start(fs->block_map)) ||
- (fs->super->s_blocks_count-1 >
- ext2fs_get_block_bitmap_end(fs->block_map))) {
- pctx.num = 2;
- pctx.blk = fs->super->s_first_data_block;
- pctx.blk2 = fs->super->s_blocks_count -1;
- pctx.ino = ext2fs_get_block_bitmap_start(fs->block_map);
- pctx.ino2 = ext2fs_get_block_bitmap_end(fs->block_map);
- fix_problem(ctx, PR_5_BMAP_ENDPOINTS, &pctx);
-
- ctx->flags |= E2F_FLAG_ABORT; /* fatal */
- return;
- }
-
-redo_counts:
- had_problem = 0;
- save_problem = 0;
- pctx.blk = pctx.blk2 = NO_BLK;
- for (i = fs->super->s_first_data_block;
- i < fs->super->s_blocks_count;
- i++) {
- actual = ext2fs_fast_test_block_bitmap(ctx->block_found_map, i);
- bitmap = ext2fs_fast_test_block_bitmap(fs->block_map, i);
-
- if (actual == bitmap)
- goto do_counts;
-
- if (!actual && bitmap) {
- /*
- * Block not used, but marked in use in the bitmap.
- */
- problem = PR_5_BLOCK_UNUSED;
- } else {
- /*
- * Block used, but not marked in use in the bitmap.
- */
- problem = PR_5_BLOCK_USED;
- }
- if (pctx.blk == NO_BLK) {
- pctx.blk = pctx.blk2 = i;
- save_problem = problem;
- } else {
- if ((problem == save_problem) &&
- (pctx.blk2 == i-1))
- pctx.blk2++;
- else {
- print_bitmap_problem(ctx, save_problem, &pctx);
- pctx.blk = pctx.blk2 = i;
- save_problem = problem;
- }
- }
- ctx->flags |= E2F_FLAG_PROG_SUPPRESS;
- had_problem++;
-
- do_counts:
- if (!bitmap) {
- group_free++;
- free_blocks++;
- }
- blocks ++;
- if ((blocks == fs->super->s_blocks_per_group) ||
- (i == fs->super->s_blocks_count-1)) {
- free_array[group] = group_free;
- group ++;
- blocks = 0;
- group_free = 0;
- if (ctx->progress)
- if ((ctx->progress)(ctx, 5, group,
- fs->group_desc_count*2))
- return;
- }
- }
- if (pctx.blk != NO_BLK)
- print_bitmap_problem(ctx, save_problem, &pctx);
- if (had_problem)
- fixit = end_problem_latch(ctx, PR_LATCH_BBITMAP);
- else
- fixit = -1;
- ctx->flags &= ~E2F_FLAG_PROG_SUPPRESS;
-
- if (fixit == 1) {
- ext2fs_free_block_bitmap(fs->block_map);
- retval = ext2fs_copy_bitmap(ctx->block_found_map,
- &fs->block_map);
- if (retval) {
- clear_problem_context(&pctx);
- fix_problem(ctx, PR_5_COPY_BBITMAP_ERROR, &pctx);
- ctx->flags |= E2F_FLAG_ABORT;
- return;
- }
- ext2fs_set_bitmap_padding(fs->block_map);
- ext2fs_mark_bb_dirty(fs);
-
- /* Redo the counts */
- blocks = 0; free_blocks = 0; group_free = 0; group = 0;
- memset(free_array, 0, fs->group_desc_count * sizeof(int));
- goto redo_counts;
- } else if (fixit == 0)
- ext2fs_unmark_valid(fs);
-
- for (i = 0; i < fs->group_desc_count; i++) {
- if (free_array[i] != fs->group_desc[i].bg_free_blocks_count) {
- pctx.group = i;
- pctx.blk = fs->group_desc[i].bg_free_blocks_count;
- pctx.blk2 = free_array[i];
-
- if (fix_problem(ctx, PR_5_FREE_BLOCK_COUNT_GROUP,
- &pctx)) {
- fs->group_desc[i].bg_free_blocks_count =
- free_array[i];
- ext2fs_mark_super_dirty(fs);
- } else
- ext2fs_unmark_valid(fs);
- }
- }
- if (free_blocks != fs->super->s_free_blocks_count) {
- pctx.group = 0;
- pctx.blk = fs->super->s_free_blocks_count;
- pctx.blk2 = free_blocks;
-
- if (fix_problem(ctx, PR_5_FREE_BLOCK_COUNT, &pctx)) {
- fs->super->s_free_blocks_count = free_blocks;
- ext2fs_mark_super_dirty(fs);
- } else
- ext2fs_unmark_valid(fs);
- }
- ext2fs_free_mem(&free_array);
-}
-
-static void check_inode_bitmaps(e2fsck_t ctx)
-{
- ext2_filsys fs = ctx->fs;
- ext2_ino_t i;
- unsigned int free_inodes = 0;
- int group_free = 0;
- int dirs_count = 0;
- int group = 0;
- unsigned int inodes = 0;
- int *free_array;
- int *dir_array;
- int actual, bitmap;
- errcode_t retval;
- struct problem_context pctx;
- int problem, save_problem, fixit, had_problem;
-
- clear_problem_context(&pctx);
- free_array = (int *) e2fsck_allocate_memory(ctx,
- fs->group_desc_count * sizeof(int), "free inode count array");
-
- dir_array = (int *) e2fsck_allocate_memory(ctx,
- fs->group_desc_count * sizeof(int), "directory count array");
-
- if ((1 < ext2fs_get_inode_bitmap_start(ctx->inode_used_map)) ||
- (fs->super->s_inodes_count >
- ext2fs_get_inode_bitmap_end(ctx->inode_used_map))) {
- pctx.num = 3;
- pctx.blk = 1;
- pctx.blk2 = fs->super->s_inodes_count;
- pctx.ino = ext2fs_get_inode_bitmap_start(ctx->inode_used_map);
- pctx.ino2 = ext2fs_get_inode_bitmap_end(ctx->inode_used_map);
- fix_problem(ctx, PR_5_BMAP_ENDPOINTS, &pctx);
-
- ctx->flags |= E2F_FLAG_ABORT; /* fatal */
- return;
- }
- if ((1 < ext2fs_get_inode_bitmap_start(fs->inode_map)) ||
- (fs->super->s_inodes_count >
- ext2fs_get_inode_bitmap_end(fs->inode_map))) {
- pctx.num = 4;
- pctx.blk = 1;
- pctx.blk2 = fs->super->s_inodes_count;
- pctx.ino = ext2fs_get_inode_bitmap_start(fs->inode_map);
- pctx.ino2 = ext2fs_get_inode_bitmap_end(fs->inode_map);
- fix_problem(ctx, PR_5_BMAP_ENDPOINTS, &pctx);
-
- ctx->flags |= E2F_FLAG_ABORT; /* fatal */
- return;
- }
-
-redo_counts:
- had_problem = 0;
- save_problem = 0;
- pctx.ino = pctx.ino2 = 0;
- for (i = 1; i <= fs->super->s_inodes_count; i++) {
- actual = ext2fs_fast_test_inode_bitmap(ctx->inode_used_map, i);
- bitmap = ext2fs_fast_test_inode_bitmap(fs->inode_map, i);
-
- if (actual == bitmap)
- goto do_counts;
-
- if (!actual && bitmap) {
- /*
- * Inode wasn't used, but marked in bitmap
- */
- problem = PR_5_INODE_UNUSED;
- } else /* if (actual && !bitmap) */ {
- /*
- * Inode used, but not in bitmap
- */
- problem = PR_5_INODE_USED;
- }
- if (pctx.ino == 0) {
- pctx.ino = pctx.ino2 = i;
- save_problem = problem;
- } else {
- if ((problem == save_problem) &&
- (pctx.ino2 == i-1))
- pctx.ino2++;
- else {
- print_bitmap_problem(ctx, save_problem, &pctx);
- pctx.ino = pctx.ino2 = i;
- save_problem = problem;
- }
- }
- ctx->flags |= E2F_FLAG_PROG_SUPPRESS;
- had_problem++;
-
-do_counts:
- if (!bitmap) {
- group_free++;
- free_inodes++;
- } else {
- if (ext2fs_test_inode_bitmap(ctx->inode_dir_map, i))
- dirs_count++;
- }
- inodes++;
- if ((inodes == fs->super->s_inodes_per_group) ||
- (i == fs->super->s_inodes_count)) {
- free_array[group] = group_free;
- dir_array[group] = dirs_count;
- group ++;
- inodes = 0;
- group_free = 0;
- dirs_count = 0;
- if (ctx->progress)
- if ((ctx->progress)(ctx, 5,
- group + fs->group_desc_count,
- fs->group_desc_count*2))
- return;
- }
- }
- if (pctx.ino)
- print_bitmap_problem(ctx, save_problem, &pctx);
-
- if (had_problem)
- fixit = end_problem_latch(ctx, PR_LATCH_IBITMAP);
- else
- fixit = -1;
- ctx->flags &= ~E2F_FLAG_PROG_SUPPRESS;
-
- if (fixit == 1) {
- ext2fs_free_inode_bitmap(fs->inode_map);
- retval = ext2fs_copy_bitmap(ctx->inode_used_map,
- &fs->inode_map);
- if (retval) {
- clear_problem_context(&pctx);
- fix_problem(ctx, PR_5_COPY_IBITMAP_ERROR, &pctx);
- ctx->flags |= E2F_FLAG_ABORT;
- return;
- }
- ext2fs_set_bitmap_padding(fs->inode_map);
- ext2fs_mark_ib_dirty(fs);
-
- /* redo counts */
- inodes = 0; free_inodes = 0; group_free = 0;
- dirs_count = 0; group = 0;
- memset(free_array, 0, fs->group_desc_count * sizeof(int));
- memset(dir_array, 0, fs->group_desc_count * sizeof(int));
- goto redo_counts;
- } else if (fixit == 0)
- ext2fs_unmark_valid(fs);
-
- for (i = 0; i < fs->group_desc_count; i++) {
- if (free_array[i] != fs->group_desc[i].bg_free_inodes_count) {
- pctx.group = i;
- pctx.ino = fs->group_desc[i].bg_free_inodes_count;
- pctx.ino2 = free_array[i];
- if (fix_problem(ctx, PR_5_FREE_INODE_COUNT_GROUP,
- &pctx)) {
- fs->group_desc[i].bg_free_inodes_count =
- free_array[i];
- ext2fs_mark_super_dirty(fs);
- } else
- ext2fs_unmark_valid(fs);
- }
- if (dir_array[i] != fs->group_desc[i].bg_used_dirs_count) {
- pctx.group = i;
- pctx.ino = fs->group_desc[i].bg_used_dirs_count;
- pctx.ino2 = dir_array[i];
-
- if (fix_problem(ctx, PR_5_FREE_DIR_COUNT_GROUP,
- &pctx)) {
- fs->group_desc[i].bg_used_dirs_count =
- dir_array[i];
- ext2fs_mark_super_dirty(fs);
- } else
- ext2fs_unmark_valid(fs);
- }
- }
- if (free_inodes != fs->super->s_free_inodes_count) {
- pctx.group = -1;
- pctx.ino = fs->super->s_free_inodes_count;
- pctx.ino2 = free_inodes;
-
- if (fix_problem(ctx, PR_5_FREE_INODE_COUNT, &pctx)) {
- fs->super->s_free_inodes_count = free_inodes;
- ext2fs_mark_super_dirty(fs);
- } else
- ext2fs_unmark_valid(fs);
- }
- ext2fs_free_mem(&free_array);
- ext2fs_free_mem(&dir_array);
-}
-
-static void check_inode_end(e2fsck_t ctx)
-{
- ext2_filsys fs = ctx->fs;
- ext2_ino_t end, save_inodes_count, i;
- struct problem_context pctx;
-
- clear_problem_context(&pctx);
-
- end = EXT2_INODES_PER_GROUP(fs->super) * fs->group_desc_count;
- pctx.errcode = ext2fs_fudge_inode_bitmap_end(fs->inode_map, end,
- &save_inodes_count);
- if (pctx.errcode) {
- pctx.num = 1;
- fix_problem(ctx, PR_5_FUDGE_BITMAP_ERROR, &pctx);
- ctx->flags |= E2F_FLAG_ABORT; /* fatal */
- return;
- }
- if (save_inodes_count == end)
- return;
-
- for (i = save_inodes_count + 1; i <= end; i++) {
- if (!ext2fs_test_inode_bitmap(fs->inode_map, i)) {
- if (fix_problem(ctx, PR_5_INODE_BMAP_PADDING, &pctx)) {
- for (i = save_inodes_count + 1; i <= end; i++)
- ext2fs_mark_inode_bitmap(fs->inode_map,
- i);
- ext2fs_mark_ib_dirty(fs);
- } else
- ext2fs_unmark_valid(fs);
- break;
- }
- }
-
- pctx.errcode = ext2fs_fudge_inode_bitmap_end(fs->inode_map,
- save_inodes_count, 0);
- if (pctx.errcode) {
- pctx.num = 2;
- fix_problem(ctx, PR_5_FUDGE_BITMAP_ERROR, &pctx);
- ctx->flags |= E2F_FLAG_ABORT; /* fatal */
- return;
- }
-}
-
-static void check_block_end(e2fsck_t ctx)
-{
- ext2_filsys fs = ctx->fs;
- blk_t end, save_blocks_count, i;
- struct problem_context pctx;
-
- clear_problem_context(&pctx);
-
- end = fs->block_map->start +
- (EXT2_BLOCKS_PER_GROUP(fs->super) * fs->group_desc_count) - 1;
- pctx.errcode = ext2fs_fudge_block_bitmap_end(fs->block_map, end,
- &save_blocks_count);
- if (pctx.errcode) {
- pctx.num = 3;
- fix_problem(ctx, PR_5_FUDGE_BITMAP_ERROR, &pctx);
- ctx->flags |= E2F_FLAG_ABORT; /* fatal */
- return;
- }
- if (save_blocks_count == end)
- return;
-
- for (i = save_blocks_count + 1; i <= end; i++) {
- if (!ext2fs_test_block_bitmap(fs->block_map, i)) {
- if (fix_problem(ctx, PR_5_BLOCK_BMAP_PADDING, &pctx)) {
- for (i = save_blocks_count + 1; i <= end; i++)
- ext2fs_mark_block_bitmap(fs->block_map,
- i);
- ext2fs_mark_bb_dirty(fs);
- } else
- ext2fs_unmark_valid(fs);
- break;
- }
- }
-
- pctx.errcode = ext2fs_fudge_block_bitmap_end(fs->block_map,
- save_blocks_count, 0);
- if (pctx.errcode) {
- pctx.num = 4;
- fix_problem(ctx, PR_5_FUDGE_BITMAP_ERROR, &pctx);
- ctx->flags |= E2F_FLAG_ABORT; /* fatal */
- return;
- }
-}
-
-
-
+++ /dev/null
-/*
- * problem.c --- report filesystem problems to the user
- *
- * Copyright 1996, 1997 by Theodore Ts'o
- *
- * %Begin-Header%
- * This file may be redistributed under the terms of the GNU Public
- * License.
- * %End-Header%
- */
-
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-#include <ctype.h>
-#include <termios.h>
-
-#include "e2fsck.h"
-
-#include "problem.h"
-#include "problemP.h"
-
-#define PROMPT_NONE 0
-#define PROMPT_FIX 1
-#define PROMPT_CLEAR 2
-#define PROMPT_RELOCATE 3
-#define PROMPT_ALLOCATE 4
-#define PROMPT_EXPAND 5
-#define PROMPT_CONNECT 6
-#define PROMPT_CREATE 7
-#define PROMPT_SALVAGE 8
-#define PROMPT_TRUNCATE 9
-#define PROMPT_CLEAR_INODE 10
-#define PROMPT_ABORT 11
-#define PROMPT_SPLIT 12
-#define PROMPT_CONTINUE 13
-#define PROMPT_CLONE 14
-#define PROMPT_DELETE 15
-#define PROMPT_SUPPRESS 16
-#define PROMPT_UNLINK 17
-#define PROMPT_CLEAR_HTREE 18
-#define PROMPT_RECREATE 19
-#define PROMPT_NULL 20
-
-/*
- * These are the prompts which are used to ask the user if they want
- * to fix a problem.
- */
-static const char *prompt[] = {
- N_("(no prompt)"), /* 0 */
- N_("Fix"), /* 1 */
- N_("Clear"), /* 2 */
- N_("Relocate"), /* 3 */
- N_("Allocate"), /* 4 */
- N_("Expand"), /* 5 */
- N_("Connect to /lost+found"), /* 6 */
- N_("Create"), /* 7 */
- N_("Salvage"), /* 8 */
- N_("Truncate"), /* 9 */
- N_("Clear inode"), /* 10 */
- N_("Abort"), /* 11 */
- N_("Split"), /* 12 */
- N_("Continue"), /* 13 */
- N_("Clone duplicate/bad blocks"), /* 14 */
- N_("Delete file"), /* 15 */
- N_("Suppress messages"),/* 16 */
- N_("Unlink"), /* 17 */
- N_("Clear HTree index"),/* 18 */
- N_("Recreate"), /* 19 */
- "", /* 20 */
-};
-
-/*
- * These messages are printed when we are preen mode and we will be
- * automatically fixing the problem.
- */
-static const char *preen_msg[] = {
- N_("(NONE)"), /* 0 */
- N_("FIXED"), /* 1 */
- N_("CLEARED"), /* 2 */
- N_("RELOCATED"), /* 3 */
- N_("ALLOCATED"), /* 4 */
- N_("EXPANDED"), /* 5 */
- N_("RECONNECTED"), /* 6 */
- N_("CREATED"), /* 7 */
- N_("SALVAGED"), /* 8 */
- N_("TRUNCATED"), /* 9 */
- N_("INODE CLEARED"), /* 10 */
- N_("ABORTED"), /* 11 */
- N_("SPLIT"), /* 12 */
- N_("CONTINUING"), /* 13 */
- N_("DUPLICATE/BAD BLOCKS CLONED"), /* 14 */
- N_("FILE DELETED"), /* 15 */
- N_("SUPPRESSED"), /* 16 */
- N_("UNLINKED"), /* 17 */
- N_("HTREE INDEX CLEARED"),/* 18 */
- N_("WILL RECREATE"), /* 19 */
- "", /* 20 */
-};
-
-static const struct e2fsck_problem problem_table[] = {
-
- /* Pre-Pass 1 errors */
-
- /* Block bitmap not in group */
- { PR_0_BB_NOT_GROUP, N_("@b @B for @g %g is not in @g. (@b %b)\n"),
- PROMPT_RELOCATE, PR_LATCH_RELOC },
-
- /* Inode bitmap not in group */
- { PR_0_IB_NOT_GROUP, N_("@i @B for @g %g is not in @g. (@b %b)\n"),
- PROMPT_RELOCATE, PR_LATCH_RELOC },
-
- /* Inode table not in group */
- { PR_0_ITABLE_NOT_GROUP,
- N_("@i table for @g %g is not in @g. (@b %b)\n"
- "WARNING: SEVERE DATA LOSS POSSIBLE.\n"),
- PROMPT_RELOCATE, PR_LATCH_RELOC },
-
- /* Superblock corrupt */
- { PR_0_SB_CORRUPT,
- N_("\nThe @S could not be read or does not describe a correct ext2\n"
- "@f. If the @v is valid and it really contains an ext2\n"
- "@f (and not swap or ufs or something else), then the @S\n"
- "is corrupt, and you might try running e2fsck with an alternate @S:\n"
- " e2fsck -b %S <@v>\n\n"),
- PROMPT_NONE, PR_FATAL },
-
- /* Filesystem size is wrong */
- { PR_0_FS_SIZE_WRONG,
- N_("The @f size (according to the @S) is %b @bs\n"
- "The physical size of the @v is %c @bs\n"
- "Either the @S or the partition table is likely to be corrupt!\n"),
- PROMPT_ABORT, 0 },
-
- /* Fragments not supported */
- { PR_0_NO_FRAGMENTS,
- N_("@S @b_size = %b, fragsize = %c.\n"
- "This version of e2fsck does not support fragment sizes different\n"
- "from the @b size.\n"),
- PROMPT_NONE, PR_FATAL },
-
- /* Bad blocks_per_group */
- { PR_0_BLOCKS_PER_GROUP,
- N_("@S @bs_per_group = %b, should have been %c\n"),
- PROMPT_NONE, PR_AFTER_CODE, PR_0_SB_CORRUPT },
-
- /* Bad first_data_block */
- { PR_0_FIRST_DATA_BLOCK,
- N_("@S first_data_@b = %b, should have been %c\n"),
- PROMPT_NONE, PR_AFTER_CODE, PR_0_SB_CORRUPT },
-
- /* Adding UUID to filesystem */
- { PR_0_ADD_UUID,
- N_("@f did not have a UUID; generating one.\n\n"),
- PROMPT_NONE, 0 },
-
- /* Relocate hint */
- { PR_0_RELOCATE_HINT,
- N_("Note: if there is several inode or block bitmap blocks\n"
- "which require relocation, or one part of the inode table\n"
- "which must be moved, you may wish to try running e2fsck\n"
- "with the '-b %S' option first. The problem may lie only\n"
- "with the primary block group descriptor, and the backup\n"
- "block group descriptor may be OK.\n\n"),
- PROMPT_NONE, PR_PREEN_OK | PR_NOCOLLATE },
-
- /* Miscellaneous superblock corruption */
- { PR_0_MISC_CORRUPT_SUPER,
- N_("Corruption found in @S. (%s = %N).\n"),
- PROMPT_NONE, PR_AFTER_CODE, PR_0_SB_CORRUPT },
-
- /* Error determing physical device size of filesystem */
- { PR_0_GETSIZE_ERROR,
- N_("Error determining size of the physical @v: %m\n"),
- PROMPT_NONE, PR_FATAL },
-
- /* Inode count in superblock is incorrect */
- { PR_0_INODE_COUNT_WRONG,
- N_("@i count in @S is %i, should be %j.\n"),
- PROMPT_FIX, 0 },
-
- { PR_0_HURD_CLEAR_FILETYPE,
- N_("The Hurd does not support the filetype feature.\n"),
- PROMPT_CLEAR, 0 },
-
- /* Journal inode is invalid */
- { PR_0_JOURNAL_BAD_INODE,
- N_("@S has a bad ext3 @j (@i %i).\n"),
- PROMPT_CLEAR, PR_PREEN_OK },
-
- /* The external journal has (unsupported) multiple filesystems */
- { PR_0_JOURNAL_UNSUPP_MULTIFS,
- N_("External @j has multiple @f users (unsupported).\n"),
- PROMPT_NONE, PR_FATAL },
-
- /* Can't find external journal */
- { PR_0_CANT_FIND_JOURNAL,
- N_("Can't find external @j\n"),
- PROMPT_NONE, PR_FATAL },
-
- /* External journal has bad superblock */
- { PR_0_EXT_JOURNAL_BAD_SUPER,
- N_("External @j has bad @S\n"),
- PROMPT_NONE, PR_FATAL },
-
- /* Superblock has a bad journal UUID */
- { PR_0_JOURNAL_BAD_UUID,
- N_("External @j does not support this @f\n"),
- PROMPT_NONE, PR_FATAL },
-
- /* Journal has an unknown superblock type */
- { PR_0_JOURNAL_UNSUPP_SUPER,
- N_("Ext3 @j @S is unknown type %N (unsupported).\n"
- "It is likely that your copy of e2fsck is old and/or doesn't "
- "support this @j format.\n"
- "It is also possible the @j @S is corrupt.\n"),
- PROMPT_ABORT, PR_NO_OK | PR_AFTER_CODE, PR_0_JOURNAL_BAD_SUPER },
-
- /* Journal superblock is corrupt */
- { PR_0_JOURNAL_BAD_SUPER,
- N_("Ext3 @j @S is corrupt.\n"),
- PROMPT_FIX, PR_PREEN_OK },
-
- /* Superblock flag should be cleared */
- { PR_0_JOURNAL_HAS_JOURNAL,
- N_("@S doesn't have has_@j flag, but has ext3 @j %s.\n"),
- PROMPT_CLEAR, PR_PREEN_OK },
-
- /* Superblock flag is incorrect */
- { PR_0_JOURNAL_RECOVER_SET,
- N_("@S has ext3 needs_recovery flag set, but no @j.\n"),
- PROMPT_CLEAR, PR_PREEN_OK },
-
- /* Journal has data, but recovery flag is clear */
- { PR_0_JOURNAL_RECOVERY_CLEAR,
- N_("ext3 recovery flag clear, but @j has data.\n"),
- PROMPT_NONE, 0 },
-
- /* Ask if we should clear the journal */
- { PR_0_JOURNAL_RESET_JOURNAL,
- N_("Clear @j"),
- PROMPT_NULL, PR_PREEN_NOMSG },
-
- /* Ask if we should run the journal anyway */
- { PR_0_JOURNAL_RUN,
- N_("Run @j anyway"),
- PROMPT_NULL, 0 },
-
- /* Run the journal by default */
- { PR_0_JOURNAL_RUN_DEFAULT,
- N_("Recovery flag not set in backup @S, so running @j anyway.\n"),
- PROMPT_NONE, 0 },
-
- /* Clearing orphan inode */
- { PR_0_ORPHAN_CLEAR_INODE,
- N_("%s @o @i %i (uid=%Iu, gid=%Ig, mode=%Im, size=%Is)\n"),
- PROMPT_NONE, 0 },
-
- /* Illegal block found in orphaned inode */
- { PR_0_ORPHAN_ILLEGAL_BLOCK_NUM,
- N_("@I @b #%B (%b) found in @o @i %i.\n"),
- PROMPT_NONE, 0 },
-
- /* Already cleared block found in orphaned inode */
- { PR_0_ORPHAN_ALREADY_CLEARED_BLOCK,
- N_("Already cleared @b #%B (%b) found in @o @i %i.\n"),
- PROMPT_NONE, 0 },
-
- /* Illegal orphan inode in superblock */
- { PR_0_ORPHAN_ILLEGAL_HEAD_INODE,
- N_("@I @o @i %i in @S.\n"),
- PROMPT_NONE, 0 },
-
- /* Illegal inode in orphaned inode list */
- { PR_0_ORPHAN_ILLEGAL_INODE,
- N_("@I @i %i in @o @i list.\n"),
- PROMPT_NONE, 0 },
-
- /* Filesystem revision is 0, but feature flags are set */
- { PR_0_FS_REV_LEVEL,
- "@f has feature flag(s) set, but is a revision 0 @f. ",
- PROMPT_FIX, PR_PREEN_OK | PR_NO_OK },
-
- /* Journal superblock has an unknown read-only feature flag set */
- { PR_0_JOURNAL_UNSUPP_ROCOMPAT,
- N_("Ext3 @j @S has an unknown read-only feature flag set.\n"),
- PROMPT_ABORT, 0 },
-
- /* Journal superblock has an unknown incompatible feature flag set */
- { PR_0_JOURNAL_UNSUPP_INCOMPAT,
- N_("Ext3 @j @S has an unknown incompatible feature flag set.\n"),
- PROMPT_ABORT, 0 },
-
- /* Journal has unsupported version number */
- { PR_0_JOURNAL_UNSUPP_VERSION,
- N_("@j version not supported by this e2fsck.\n"),
- PROMPT_ABORT, 0 },
-
- /* Moving journal to hidden file */
- { PR_0_MOVE_JOURNAL,
- N_("Moving @j from /%s to hidden inode.\n\n"),
- PROMPT_NONE, 0 },
-
- /* Error moving journal to hidden file */
- { PR_0_ERR_MOVE_JOURNAL,
- N_("Error moving @j: %m\n\n"),
- PROMPT_NONE, 0 },
-
- /* Clearing V2 journal superblock */
- { PR_0_CLEAR_V2_JOURNAL,
- N_("Found invalid V2 @j @S fields (from V1 journal).\n"
- "Clearing fields beyond the V1 @j @S...\n\n"),
- PROMPT_NONE, 0 },
-
- /* Backup journal inode blocks */
- { PR_0_BACKUP_JNL,
- N_("Backing up @j @i @b information.\n\n"),
- PROMPT_NONE, 0 },
-
- /* Reserved blocks w/o resize_inode */
- { PR_0_NONZERO_RESERVED_GDT_BLOCKS,
- N_("@f does not have resize_@i enabled, but s_reserved_gdt_@bs\n"
- "is %N; @s zero. "),
- PROMPT_FIX, 0 },
-
- /* Resize_inode not enabled, but resize inode is non-zero */
- { PR_0_CLEAR_RESIZE_INODE,
- N_("Resize_@i not enabled, but the resize inode is non-zero. "),
- PROMPT_CLEAR, 0 },
-
- /* Resize inode invalid */
- { PR_0_RESIZE_INODE_INVALID,
- N_("Resize @i not valid. "),
- PROMPT_RECREATE, 0 },
-
- /* Pass 1 errors */
-
- /* Pass 1: Checking inodes, blocks, and sizes */
- { PR_1_PASS_HEADER,
- N_("Pass 1: Checking @is, @bs, and sizes\n"),
- PROMPT_NONE, 0 },
-
- /* Root directory is not an inode */
- { PR_1_ROOT_NO_DIR, N_("@r is not a @d. "),
- PROMPT_CLEAR, 0 },
-
- /* Root directory has dtime set */
- { PR_1_ROOT_DTIME,
- N_("@r has dtime set (probably due to old mke2fs). "),
- PROMPT_FIX, PR_PREEN_OK },
-
- /* Reserved inode has bad mode */
- { PR_1_RESERVED_BAD_MODE,
- N_("Reserved @i %i %Q has bad mode. "),
- PROMPT_CLEAR, PR_PREEN_OK },
-
- /* Deleted inode has zero dtime */
- { PR_1_ZERO_DTIME,
- N_("@D @i %i has zero dtime. "),
- PROMPT_FIX, PR_PREEN_OK },
-
- /* Inode in use, but dtime set */
- { PR_1_SET_DTIME,
- N_("@i %i is in use, but has dtime set. "),
- PROMPT_FIX, PR_PREEN_OK },
-
- /* Zero-length directory */
- { PR_1_ZERO_LENGTH_DIR,
- N_("@i %i is a @z @d. "),
- PROMPT_CLEAR, PR_PREEN_OK },
-
- /* Block bitmap conflicts with some other fs block */
- { PR_1_BB_CONFLICT,
- N_("@g %g's @b @B at %b @C.\n"),
- PROMPT_RELOCATE, 0 },
-
- /* Inode bitmap conflicts with some other fs block */
- { PR_1_IB_CONFLICT,
- N_("@g %g's @i @B at %b @C.\n"),
- PROMPT_RELOCATE, 0 },
-
- /* Inode table conflicts with some other fs block */
- { PR_1_ITABLE_CONFLICT,
- N_("@g %g's @i table at %b @C.\n"),
- PROMPT_RELOCATE, 0 },
-
- /* Block bitmap is on a bad block */
- { PR_1_BB_BAD_BLOCK,
- N_("@g %g's @b @B (%b) is bad. "),
- PROMPT_RELOCATE, 0 },
-
- /* Inode bitmap is on a bad block */
- { PR_1_IB_BAD_BLOCK,
- N_("@g %g's @i @B (%b) is bad. "),
- PROMPT_RELOCATE, 0 },
-
- /* Inode has incorrect i_size */
- { PR_1_BAD_I_SIZE,
- N_("@i %i, i_size is %Is, @s %N. "),
- PROMPT_FIX, PR_PREEN_OK },
-
- /* Inode has incorrect i_blocks */
- { PR_1_BAD_I_BLOCKS,
- N_("@i %i, i_@bs is %Ib, @s %N. "),
- PROMPT_FIX, PR_PREEN_OK },
-
- /* Illegal blocknumber in inode */
- { PR_1_ILLEGAL_BLOCK_NUM,
- N_("@I @b #%B (%b) in @i %i. "),
- PROMPT_CLEAR, PR_LATCH_BLOCK },
-
- /* Block number overlaps fs metadata */
- { PR_1_BLOCK_OVERLAPS_METADATA,
- N_("@b #%B (%b) overlaps @f metadata in @i %i. "),
- PROMPT_CLEAR, PR_LATCH_BLOCK },
-
- /* Inode has illegal blocks (latch question) */
- { PR_1_INODE_BLOCK_LATCH,
- N_("@i %i has illegal @b(s). "),
- PROMPT_CLEAR, 0 },
-
- /* Too many bad blocks in inode */
- { PR_1_TOO_MANY_BAD_BLOCKS,
- N_("Too many illegal @bs in @i %i.\n"),
- PROMPT_CLEAR_INODE, PR_NO_OK },
-
- /* Illegal block number in bad block inode */
- { PR_1_BB_ILLEGAL_BLOCK_NUM,
- N_("@I @b #%B (%b) in bad @b @i. "),
- PROMPT_CLEAR, PR_LATCH_BBLOCK },
-
- /* Bad block inode has illegal blocks (latch question) */
- { PR_1_INODE_BBLOCK_LATCH,
- N_("Bad @b @i has illegal @b(s). "),
- PROMPT_CLEAR, 0 },
-
- /* Duplicate or bad blocks in use! */
- { PR_1_DUP_BLOCKS_PREENSTOP,
- N_("Duplicate or bad @b in use!\n"),
- PROMPT_NONE, 0 },
-
- /* Bad block used as bad block indirect block */
- { PR_1_BBINODE_BAD_METABLOCK,
- N_("Bad @b %b used as bad @b @i indirect @b. "),
- PROMPT_CLEAR, PR_LATCH_BBLOCK },
-
- /* Inconsistency can't be fixed prompt */
- { PR_1_BBINODE_BAD_METABLOCK_PROMPT,
- N_("\nThe bad @b @i has probably been corrupted. You probably\n"
- "should stop now and run ""e2fsck -c"" to scan for bad blocks\n"
- "in the @f.\n"),
- PROMPT_CONTINUE, PR_PREEN_NOMSG },
-
- /* Bad primary block */
- { PR_1_BAD_PRIMARY_BLOCK,
- N_("\nIf the @b is really bad, the @f can not be fixed.\n"),
- PROMPT_NONE, PR_AFTER_CODE, PR_1_BAD_PRIMARY_BLOCK_PROMPT },
-
- /* Bad primary block prompt */
- { PR_1_BAD_PRIMARY_BLOCK_PROMPT,
- N_("You can clear the this @b (and hope for the best) from the\n"
- "bad @b list and hope that @b is really OK, but there are no\n"
- "guarantees.\n\n"),
- PROMPT_CLEAR, PR_PREEN_NOMSG },
-
- /* Bad primary superblock */
- { PR_1_BAD_PRIMARY_SUPERBLOCK,
- N_("The primary @S (%b) is on the bad @b list.\n"),
- PROMPT_NONE, PR_AFTER_CODE, PR_1_BAD_PRIMARY_BLOCK },
-
- /* Bad primary block group descriptors */
- { PR_1_BAD_PRIMARY_GROUP_DESCRIPTOR,
- N_("Block %b in the primary @g descriptors "
- "is on the bad @b list\n"),
- PROMPT_NONE, PR_AFTER_CODE, PR_1_BAD_PRIMARY_BLOCK },
-
- /* Bad superblock in group */
- { PR_1_BAD_SUPERBLOCK,
- N_("Warning: Group %g's @S (%b) is bad.\n"),
- PROMPT_NONE, PR_PREEN_OK | PR_PREEN_NOMSG },
-
- /* Bad block group descriptors in group */
- { PR_1_BAD_GROUP_DESCRIPTORS,
- N_("Warning: Group %g's copy of the @g descriptors has a bad "
- "@b (%b).\n"),
- PROMPT_NONE, PR_PREEN_OK | PR_PREEN_NOMSG },
-
- /* Block claimed for no reason */
- { PR_1_PROGERR_CLAIMED_BLOCK,
- N_("Programming error? @b #%b claimed for no reason in "
- "process_bad_@b.\n"),
- PROMPT_NONE, PR_PREEN_OK },
-
- /* Error allocating blocks for relocating metadata */
- { PR_1_RELOC_BLOCK_ALLOCATE,
- N_("@A %N contiguous @b(s) in @b @g %g for %s: %m\n"),
- PROMPT_NONE, PR_PREEN_OK },
-
- /* Error allocating block buffer during relocation process */
- { PR_1_RELOC_MEMORY_ALLOCATE,
- N_("@A @b buffer for relocating %s\n"),
- PROMPT_NONE, PR_PREEN_OK },
-
- /* Relocating metadata group information from X to Y */
- { PR_1_RELOC_FROM_TO,
- N_("Relocating @g %g's %s from %b to %c...\n"),
- PROMPT_NONE, PR_PREEN_OK },
-
- /* Relocating metatdata group information to X */
- { PR_1_RELOC_TO,
- N_("Relocating @g %g's %s to %c...\n"), /* xgettext:no-c-format */
- PROMPT_NONE, PR_PREEN_OK },
-
- /* Block read error during relocation process */
- { PR_1_RELOC_READ_ERR,
- N_("Warning: could not read @b %b of %s: %m\n"),
- PROMPT_NONE, PR_PREEN_OK },
-
- /* Block write error during relocation process */
- { PR_1_RELOC_WRITE_ERR,
- N_("Warning: could not write @b %b for %s: %m\n"),
- PROMPT_NONE, PR_PREEN_OK },
-
- /* Error allocating inode bitmap */
- { PR_1_ALLOCATE_IBITMAP_ERROR,
- "@A @i @B (%N): %m\n",
- PROMPT_NONE, PR_FATAL },
-
- /* Error allocating block bitmap */
- { PR_1_ALLOCATE_BBITMAP_ERROR,
- "@A @b @B (%N): %m\n",
- PROMPT_NONE, PR_FATAL },
-
- /* Error allocating icount structure */
- { PR_1_ALLOCATE_ICOUNT,
- N_("@A icount link information: %m\n"),
- PROMPT_NONE, PR_FATAL },
-
- /* Error allocating dbcount */
- { PR_1_ALLOCATE_DBCOUNT,
- N_("@A @d @b array: %m\n"),
- PROMPT_NONE, PR_FATAL },
-
- /* Error while scanning inodes */
- { PR_1_ISCAN_ERROR,
- N_("Error while scanning @is (%i): %m\n"),
- PROMPT_NONE, PR_FATAL },
-
- /* Error while iterating over blocks */
- { PR_1_BLOCK_ITERATE,
- N_("Error while iterating over @bs in @i %i: %m\n"),
- PROMPT_NONE, PR_FATAL },
-
- /* Error while storing inode count information */
- { PR_1_ICOUNT_STORE,
- N_("Error storing @i count information (@i=%i, count=%N): %m\n"),
- PROMPT_NONE, PR_FATAL },
-
- /* Error while storing directory block information */
- { PR_1_ADD_DBLOCK,
- N_("Error storing @d @b information "
- "(@i=%i, @b=%b, num=%N): %m\n"),
- PROMPT_NONE, PR_FATAL },
-
- /* Error while reading inode (for clearing) */
- { PR_1_READ_INODE,
- N_("Error reading @i %i: %m\n"),
- PROMPT_NONE, PR_FATAL },
-
- /* Suppress messages prompt */
- { PR_1_SUPPRESS_MESSAGES, "", PROMPT_SUPPRESS, PR_NO_OK },
-
- /* Imagic flag set on an inode when filesystem doesn't support it */
- { PR_1_SET_IMAGIC,
- N_("@i %i has imagic flag set. "),
- PROMPT_CLEAR, 0 },
-
- /* Immutable flag set on a device or socket inode */
- { PR_1_SET_IMMUTABLE,
- N_("Special (@v/socket/fifo/symlink) file (@i %i) has immutable\n"
- "or append-only flag set. "),
- PROMPT_CLEAR, PR_PREEN_OK | PR_PREEN_NO | PR_NO_OK },
-
- /* Compression flag set on an inode when filesystem doesn't support it */
- { PR_1_COMPR_SET,
- N_("@i %i has @cion flag set on @f without @cion support. "),
- PROMPT_CLEAR, 0 },
-
- /* Non-zero size for device, fifo or socket inode */
- { PR_1_SET_NONZSIZE,
- "Special (@v/socket/fifo) @i %i has non-zero size. ",
- PROMPT_FIX, PR_PREEN_OK },
-
- /* Filesystem revision is 0, but feature flags are set */
- { PR_1_FS_REV_LEVEL,
- "@f has feature flag(s) set, but is a revision 0 @f. ",
- PROMPT_FIX, PR_PREEN_OK | PR_NO_OK },
-
- /* Journal inode is not in use, but contains data */
- { PR_1_JOURNAL_INODE_NOT_CLEAR,
- "@j @i is not in use, but contains data. ",
- PROMPT_CLEAR, PR_PREEN_OK },
-
- /* Journal has bad mode */
- { PR_1_JOURNAL_BAD_MODE,
- N_("@j is not regular file. "),
- PROMPT_FIX, PR_PREEN_OK },
-
- /* Deal with inodes that were part of orphan linked list */
- { PR_1_LOW_DTIME,
- N_("@i %i was part of the orphaned @i list. "),
- PROMPT_FIX, PR_LATCH_LOW_DTIME, 0 },
-
- /* Deal with inodes that were part of corrupted orphan linked
- list (latch question) */
- { PR_1_ORPHAN_LIST_REFUGEES,
- N_("@is that were part of a corrupted orphan linked list found. "),
- PROMPT_FIX, 0 },
-
- /* Error allocating refcount structure */
- { PR_1_ALLOCATE_REFCOUNT,
- "@A refcount structure (%N): %m\n",
- PROMPT_NONE, PR_FATAL },
-
- /* Error reading extended attribute block */
- { PR_1_READ_EA_BLOCK,
- N_("Error reading @a @b %b for @i %i. "),
- PROMPT_CLEAR, 0 },
-
- /* Invalid extended attribute block */
- { PR_1_BAD_EA_BLOCK,
- N_("@i %i has a bad @a @b %b. "),
- PROMPT_CLEAR, 0 },
-
- /* Error reading Extended Attribute block while fixing refcount */
- { PR_1_EXTATTR_READ_ABORT,
- N_("Error reading @a @b %b (%m). "),
- PROMPT_ABORT, 0 },
-
- /* Extended attribute reference count incorrect */
- { PR_1_EXTATTR_REFCOUNT,
- N_("@a @b %b has reference count %B, should be %N. "),
- PROMPT_FIX, 0 },
-
- /* Error writing Extended Attribute block while fixing refcount */
- { PR_1_EXTATTR_WRITE,
- N_("Error writing @a @b %b (%m). "),
- PROMPT_ABORT, 0 },
-
- /* Multiple EA blocks not supported */
- { PR_1_EA_MULTI_BLOCK,
- N_("@a @b %b has h_blocks > 1. "),
- PROMPT_CLEAR, 0},
-
- /* Error allocating EA region allocation structure */
- { PR_1_EA_ALLOC_REGION,
- N_("Error allocating @a @b %b. "),
- PROMPT_ABORT, 0},
-
- /* Error EA allocation collision */
- { PR_1_EA_ALLOC_COLLISION,
- N_("@a @b %b is corrupt (allocation collision). "),
- PROMPT_CLEAR, 0},
-
- /* Bad extended attribute name */
- { PR_1_EA_BAD_NAME,
- N_("@a @b %b is corrupt (invalid name). "),
- PROMPT_CLEAR, 0},
-
- /* Bad extended attribute value */
- { PR_1_EA_BAD_VALUE,
- N_("@a @b %b is corrupt (invalid value). "),
- PROMPT_CLEAR, 0},
-
- /* Inode too big (latch question) */
- { PR_1_INODE_TOOBIG,
- N_("@i %i is too big. "), PROMPT_TRUNCATE, 0 },
-
- /* Directory too big */
- { PR_1_TOOBIG_DIR,
- N_("@b #%B (%b) causes @d to be too big. "),
- PROMPT_CLEAR, PR_LATCH_TOOBIG },
-
- /* Regular file too big */
- { PR_1_TOOBIG_REG,
- N_("@b #%B (%b) causes file to be too big. "),
- PROMPT_CLEAR, PR_LATCH_TOOBIG },
-
- /* Symlink too big */
- { PR_1_TOOBIG_SYMLINK,
- N_("@b #%B (%b) causes symlink to be too big. "),
- PROMPT_CLEAR, PR_LATCH_TOOBIG },
-
- /* INDEX_FL flag set on a non-HTREE filesystem */
- { PR_1_HTREE_SET,
- N_("@i %i has INDEX_FL flag set on @f without htree support.\n"),
- PROMPT_CLEAR_HTREE, PR_PREEN_OK },
-
- /* INDEX_FL flag set on a non-directory */
- { PR_1_HTREE_NODIR,
- N_("@i %i has INDEX_FL flag set but is not a @d.\n"),
- PROMPT_CLEAR_HTREE, PR_PREEN_OK },
-
- /* Invalid root node in HTREE directory */
- { PR_1_HTREE_BADROOT,
- N_("@h %i has an invalid root node.\n"),
- PROMPT_CLEAR_HTREE, PR_PREEN_OK },
-
- /* Unsupported hash version in HTREE directory */
- { PR_1_HTREE_HASHV,
- N_("@h %i has an unsupported hash version (%N)\n"),
- PROMPT_CLEAR_HTREE, PR_PREEN_OK },
-
- /* Incompatible flag in HTREE root node */
- { PR_1_HTREE_INCOMPAT,
- N_("@h %i uses an incompatible htree root node flag.\n"),
- PROMPT_CLEAR_HTREE, PR_PREEN_OK },
-
- /* HTREE too deep */
- { PR_1_HTREE_DEPTH,
- N_("@h %i has a tree depth (%N) which is too big\n"),
- PROMPT_CLEAR_HTREE, PR_PREEN_OK },
-
- /* Bad block has indirect block that conflicts with filesystem block */
- { PR_1_BB_FS_BLOCK,
- N_("Bad @b @i has an indirect @b (%b) that conflicts with\n"
- "@f metadata. "),
- PROMPT_CLEAR, PR_LATCH_BBLOCK },
-
- /* Resize inode failed */
- { PR_1_RESIZE_INODE_CREATE,
- N_("Resize @i (re)creation failed: %m."),
- PROMPT_ABORT, 0 },
-
- /* invalid inode->i_extra_isize */
- { PR_1_EXTRA_ISIZE,
- N_("@i %i has a extra size (%IS) which is invalid\n"),
- PROMPT_FIX, PR_PREEN_OK },
-
- /* invalid ea entry->e_name_len */
- { PR_1_ATTR_NAME_LEN,
- N_("@a in @i %i has a namelen (%N) which is invalid\n"),
- PROMPT_CLEAR, PR_PREEN_OK },
-
- /* invalid ea entry->e_value_size */
- { PR_1_ATTR_VALUE_SIZE,
- N_("@a in @i %i has a value size (%N) which is invalid\n"),
- PROMPT_CLEAR, PR_PREEN_OK },
-
- /* invalid ea entry->e_value_offs */
- { PR_1_ATTR_VALUE_OFFSET,
- N_("@a in @i %i has a value offset (%N) which is invalid\n"),
- PROMPT_CLEAR, PR_PREEN_OK },
-
- /* invalid ea entry->e_value_block */
- { PR_1_ATTR_VALUE_BLOCK,
- N_("@a in @i %i has a value block (%N) which is invalid (must be 0)\n"),
- PROMPT_CLEAR, PR_PREEN_OK },
-
- /* invalid ea entry->e_hash */
- { PR_1_ATTR_HASH,
- N_("@a in @i %i has a hash (%N) which is invalid (must be 0)\n"),
- PROMPT_CLEAR, PR_PREEN_OK },
-
- /* Pass 1b errors */
-
- /* Pass 1B: Rescan for duplicate/bad blocks */
- { PR_1B_PASS_HEADER,
- N_("Duplicate @bs found... invoking duplicate @b passes.\n"
- "Pass 1B: Rescan for duplicate/bad @bs\n"),
- PROMPT_NONE, 0 },
-
- /* Duplicate/bad block(s) header */
- { PR_1B_DUP_BLOCK_HEADER,
- N_("Duplicate/bad @b(s) in @i %i:"),
- PROMPT_NONE, 0 },
-
- /* Duplicate/bad block(s) in inode */
- { PR_1B_DUP_BLOCK,
- " %b",
- PROMPT_NONE, PR_LATCH_DBLOCK | PR_PREEN_NOHDR },
-
- /* Duplicate/bad block(s) end */
- { PR_1B_DUP_BLOCK_END,
- "\n",
- PROMPT_NONE, PR_PREEN_NOHDR },
-
- /* Error while scanning inodes */
- { PR_1B_ISCAN_ERROR,
- N_("Error while scanning inodes (%i): %m\n"),
- PROMPT_NONE, PR_FATAL },
-
- /* Error allocating inode bitmap */
- { PR_1B_ALLOCATE_IBITMAP_ERROR,
- N_("@A @i @B (inode_dup_map): %m\n"),
- PROMPT_NONE, PR_FATAL },
-
- /* Error while iterating over blocks */
- { PR_1B_BLOCK_ITERATE,
- N_("Error while iterating over @bs in @i %i (%s): %m\n"),
- PROMPT_NONE, 0 },
-
- /* Error adjusting EA refcount */
- { PR_1B_ADJ_EA_REFCOUNT,
- N_("Error addjusting refcount for @a @b %b (@i %i): %m\n"),
- PROMPT_NONE, 0 },
-
-
- /* Pass 1C: Scan directories for inodes with dup blocks. */
- { PR_1C_PASS_HEADER,
- N_("Pass 1C: Scan directories for @is with dup @bs.\n"),
- PROMPT_NONE, 0 },
-
-
- /* Pass 1D: Reconciling duplicate blocks */
- { PR_1D_PASS_HEADER,
- N_("Pass 1D: Reconciling duplicate @bs\n"),
- PROMPT_NONE, 0 },
-
- /* File has duplicate blocks */
- { PR_1D_DUP_FILE,
- N_("File %Q (@i #%i, mod time %IM) \n"
- " has %B duplicate @b(s), shared with %N file(s):\n"),
- PROMPT_NONE, 0 },
-
- /* List of files sharing duplicate blocks */
- { PR_1D_DUP_FILE_LIST,
- N_("\t%Q (@i #%i, mod time %IM)\n"),
- PROMPT_NONE, 0 },
-
- /* File sharing blocks with filesystem metadata */
- { PR_1D_SHARE_METADATA,
- N_("\t<@f metadata>\n"),
- PROMPT_NONE, 0 },
-
- /* Report of how many duplicate/bad inodes */
- { PR_1D_NUM_DUP_INODES,
- N_("(There are %N @is containing duplicate/bad @bs.)\n\n"),
- PROMPT_NONE, 0 },
-
- /* Duplicated blocks already reassigned or cloned. */
- { PR_1D_DUP_BLOCKS_DEALT,
- N_("Duplicated @bs already reassigned or cloned.\n\n"),
- PROMPT_NONE, 0 },
-
- /* Clone duplicate/bad blocks? */
- { PR_1D_CLONE_QUESTION,
- "", PROMPT_CLONE, PR_NO_OK },
-
- /* Delete file? */
- { PR_1D_DELETE_QUESTION,
- "", PROMPT_DELETE, 0 },
-
- /* Couldn't clone file (error) */
- { PR_1D_CLONE_ERROR,
- N_("Couldn't clone file: %m\n"), PROMPT_NONE, 0 },
-
- /* Pass 2 errors */
-
- /* Pass 2: Checking directory structure */
- { PR_2_PASS_HEADER,
- N_("Pass 2: Checking @d structure\n"),
- PROMPT_NONE, 0 },
-
- /* Bad inode number for '.' */
- { PR_2_BAD_INODE_DOT,
- N_("Bad @i number for '.' in @d @i %i.\n"),
- PROMPT_FIX, 0 },
-
- /* Directory entry has bad inode number */
- { PR_2_BAD_INO,
- N_("@E has bad @i #: %Di.\n"),
- PROMPT_CLEAR, 0 },
-
- /* Directory entry has deleted or unused inode */
- { PR_2_UNUSED_INODE,
- N_("@E has @D/unused @i %Di. "),
- PROMPT_CLEAR, PR_PREEN_OK },
-
- /* Directry entry is link to '.' */
- { PR_2_LINK_DOT,
- N_("@E @L to '.' "),
- PROMPT_CLEAR, 0 },
-
- /* Directory entry points to inode now located in a bad block */
- { PR_2_BB_INODE,
- N_("@E points to @i (%Di) located in a bad @b.\n"),
- PROMPT_CLEAR, 0 },
-
- /* Directory entry contains a link to a directory */
- { PR_2_LINK_DIR,
- N_("@E @L to @d %P (%Di).\n"),
- PROMPT_CLEAR, 0 },
-
- /* Directory entry contains a link to the root directry */
- { PR_2_LINK_ROOT,
- N_("@E @L to the @r.\n"),
- PROMPT_CLEAR, 0 },
-
- /* Directory entry has illegal characters in its name */
- { PR_2_BAD_NAME,
- N_("@E has illegal characters in its name.\n"),
- PROMPT_FIX, 0 },
-
- /* Missing '.' in directory inode */
- { PR_2_MISSING_DOT,
- N_("Missing '.' in @d @i %i.\n"),
- PROMPT_FIX, 0 },
-
- /* Missing '..' in directory inode */
- { PR_2_MISSING_DOT_DOT,
- N_("Missing '..' in @d @i %i.\n"),
- PROMPT_FIX, 0 },
-
- /* First entry in directory inode doesn't contain '.' */
- { PR_2_1ST_NOT_DOT,
- N_("First @e '%Dn' (inode=%Di) in @d @i %i (%p) @s '.'\n"),
- PROMPT_FIX, 0 },
-
- /* Second entry in directory inode doesn't contain '..' */
- { PR_2_2ND_NOT_DOT_DOT,
- N_("Second @e '%Dn' (inode=%Di) in @d @i %i @s '..'\n"),
- PROMPT_FIX, 0 },
-
- /* i_faddr should be zero */
- { PR_2_FADDR_ZERO,
- N_("i_faddr @F %IF, @s zero.\n"),
- PROMPT_CLEAR, 0 },
-
- /* i_file_acl should be zero */
- { PR_2_FILE_ACL_ZERO,
- N_("i_file_acl @F %If, @s zero.\n"),
- PROMPT_CLEAR, 0 },
-
- /* i_dir_acl should be zero */
- { PR_2_DIR_ACL_ZERO,
- N_("i_dir_acl @F %Id, @s zero.\n"),
- PROMPT_CLEAR, 0 },
-
- /* i_frag should be zero */
- { PR_2_FRAG_ZERO,
- N_("i_frag @F %N, @s zero.\n"),
- PROMPT_CLEAR, 0 },
-
- /* i_fsize should be zero */
- { PR_2_FSIZE_ZERO,
- N_("i_fsize @F %N, @s zero.\n"),
- PROMPT_CLEAR, 0 },
-
- /* inode has bad mode */
- { PR_2_BAD_MODE,
- N_("@i %i (%Q) has a bad mode (%Im).\n"),
- PROMPT_CLEAR, 0 },
-
- /* directory corrupted */
- { PR_2_DIR_CORRUPTED,
- N_("@d @i %i, @b %B, offset %N: @d corrupted\n"),
- PROMPT_SALVAGE, 0 },
-
- /* filename too long */
- { PR_2_FILENAME_LONG,
- N_("@d @i %i, @b %B, offset %N: filename too long\n"),
- PROMPT_TRUNCATE, 0 },
-
- /* Directory inode has a missing block (hole) */
- { PR_2_DIRECTORY_HOLE,
- N_("@d @i %i has an unallocated @b #%B. "),
- PROMPT_ALLOCATE, 0 },
-
- /* '.' is not NULL terminated */
- { PR_2_DOT_NULL_TERM,
- N_("'.' @d @e in @d @i %i is not NULL terminated\n"),
- PROMPT_FIX, 0 },
-
- /* '..' is not NULL terminated */
- { PR_2_DOT_DOT_NULL_TERM,
- N_("'..' @d @e in @d @i %i is not NULL terminated\n"),
- PROMPT_FIX, 0 },
-
- /* Illegal character device inode */
- { PR_2_BAD_CHAR_DEV,
- N_("@i %i (%Q) is an @I character @v.\n"),
- PROMPT_CLEAR, 0 },
-
- /* Illegal block device inode */
- { PR_2_BAD_BLOCK_DEV,
- N_("@i %i (%Q) is an @I @b @v.\n"),
- PROMPT_CLEAR, 0 },
-
- /* Duplicate '.' entry */
- { PR_2_DUP_DOT,
- N_("@E is duplicate '.' @e.\n"),
- PROMPT_FIX, 0 },
-
- /* Duplicate '..' entry */
- { PR_2_DUP_DOT_DOT,
- N_("@E is duplicate '..' @e.\n"),
- PROMPT_FIX, 0 },
-
- /* Internal error: couldn't find dir_info */
- { PR_2_NO_DIRINFO,
- N_("Internal error: couldn't find dir_info for %i.\n"),
- PROMPT_NONE, PR_FATAL },
-
- /* Final rec_len is wrong */
- { PR_2_FINAL_RECLEN,
- N_("@E has rec_len of %Dr, should be %N.\n"),
- PROMPT_FIX, 0 },
-
- /* Error allocating icount structure */
- { PR_2_ALLOCATE_ICOUNT,
- N_("@A icount structure: %m\n"),
- PROMPT_NONE, PR_FATAL },
-
- /* Error iterating over directory blocks */
- { PR_2_DBLIST_ITERATE,
- N_("Error iterating over @d @bs: %m\n"),
- PROMPT_NONE, PR_FATAL },
-
- /* Error reading directory block */
- { PR_2_READ_DIRBLOCK,
- N_("Error reading @d @b %b (@i %i): %m\n"),
- PROMPT_CONTINUE, 0 },
-
- /* Error writing directory block */
- { PR_2_WRITE_DIRBLOCK,
- N_("Error writing @d @b %b (@i %i): %m\n"),
- PROMPT_CONTINUE, 0 },
-
- /* Error allocating new directory block */
- { PR_2_ALLOC_DIRBOCK,
- N_("@A new @d @b for @i %i (%s): %m\n"),
- PROMPT_NONE, 0 },
-
- /* Error deallocating inode */
- { PR_2_DEALLOC_INODE,
- N_("Error deallocating @i %i: %m\n"),
- PROMPT_NONE, PR_FATAL },
-
- /* Directory entry for '.' is big. Split? */
- { PR_2_SPLIT_DOT,
- N_("@d @e for '.' is big. "),
- PROMPT_SPLIT, PR_NO_OK },
-
- /* Illegal FIFO inode */
- { PR_2_BAD_FIFO,
- N_("@i %i (%Q) is an @I FIFO.\n"),
- PROMPT_CLEAR, 0 },
-
- /* Illegal socket inode */
- { PR_2_BAD_SOCKET,
- N_("@i %i (%Q) is an @I socket.\n"),
- PROMPT_CLEAR, 0 },
-
- /* Directory filetype not set */
- { PR_2_SET_FILETYPE,
- N_("Setting filetype for @E to %N.\n"),
- PROMPT_NONE, PR_PREEN_OK | PR_NO_OK | PR_NO_NOMSG },
-
- /* Directory filetype incorrect */
- { PR_2_BAD_FILETYPE,
- N_("@E has an incorrect filetype (was %Dt, should be %N).\n"),
- PROMPT_FIX, 0 },
-
- /* Directory filetype set on filesystem */
- { PR_2_CLEAR_FILETYPE,
- N_("@E has filetype set.\n"),
- PROMPT_CLEAR, PR_PREEN_OK },
-
- /* Directory filename is null */
- { PR_2_NULL_NAME,
- N_("@E has a zero-length name.\n"),
- PROMPT_CLEAR, 0 },
-
- /* Invalid symlink */
- { PR_2_INVALID_SYMLINK,
- N_("Symlink %Q (@i #%i) is invalid.\n"),
- PROMPT_CLEAR, 0 },
-
- /* i_file_acl (extended attribute block) is bad */
- { PR_2_FILE_ACL_BAD,
- N_("@a @b @F invalid (%If).\n"),
- PROMPT_CLEAR, 0 },
-
- /* Filesystem contains large files, but has no such flag in sb */
- { PR_2_FEATURE_LARGE_FILES,
- N_("@f contains large files, but lacks LARGE_FILE flag in @S.\n"),
- PROMPT_FIX, 0 },
-
- /* Node in HTREE directory not referenced */
- { PR_2_HTREE_NOTREF,
- N_("@p @h %d: node (%B) not referenced\n"),
- PROMPT_NONE, 0 },
-
- /* Node in HTREE directory referenced twice */
- { PR_2_HTREE_DUPREF,
- N_("@p @h %d: node (%B) referenced twice\n"),
- PROMPT_NONE, 0 },
-
- /* Node in HTREE directory has bad min hash */
- { PR_2_HTREE_MIN_HASH,
- N_("@p @h %d: node (%B) has bad min hash\n"),
- PROMPT_NONE, 0 },
-
- /* Node in HTREE directory has bad max hash */
- { PR_2_HTREE_MAX_HASH,
- N_("@p @h %d: node (%B) has bad max hash\n"),
- PROMPT_NONE, 0 },
-
- /* Clear invalid HTREE directory */
- { PR_2_HTREE_CLEAR,
- N_("Invalid @h %d (%q). "), PROMPT_CLEAR, 0 },
-
- /* Bad block in htree interior node */
- { PR_2_HTREE_BADBLK,
- N_("@p @h %d (%q): bad @b number %b.\n"),
- PROMPT_CLEAR_HTREE, 0 },
-
- /* Error adjusting EA refcount */
- { PR_2_ADJ_EA_REFCOUNT,
- N_("Error addjusting refcount for @a @b %b (@i %i): %m\n"),
- PROMPT_NONE, PR_FATAL },
-
- /* Invalid HTREE root node */
- { PR_2_HTREE_BAD_ROOT,
- N_("@p @h %d: root node is invalid\n"),
- PROMPT_CLEAR_HTREE, PR_PREEN_OK },
-
- /* Invalid HTREE limit */
- { PR_2_HTREE_BAD_LIMIT,
- N_("@p @h %d: node (%B) has bad limit (%N)\n"),
- PROMPT_CLEAR_HTREE, PR_PREEN_OK },
-
- /* Invalid HTREE count */
- { PR_2_HTREE_BAD_COUNT,
- N_("@p @h %d: node (%B) has bad count (%N)\n"),
- PROMPT_CLEAR_HTREE, PR_PREEN_OK },
-
- /* HTREE interior node has out-of-order hashes in table */
- { PR_2_HTREE_HASH_ORDER,
- N_("@p @h %d: node (%B) has an unordered hash table\n"),
- PROMPT_CLEAR_HTREE, PR_PREEN_OK },
-
- /* Node in HTREE directory has bad depth */
- { PR_2_HTREE_BAD_DEPTH,
- N_("@p @h %d: node (%B) has bad depth\n"),
- PROMPT_NONE, 0 },
-
- /* Duplicate directory entry found */
- { PR_2_DUPLICATE_DIRENT,
- N_("Duplicate @E found. "),
- PROMPT_CLEAR, 0 },
-
- /* Non-unique filename found */
- { PR_2_NON_UNIQUE_FILE, /* xgettext: no-c-format */
- N_("@E has a non-unique filename.\nRename to %s"),
- PROMPT_NULL, 0 },
-
- /* Duplicate directory entry found */
- { PR_2_REPORT_DUP_DIRENT,
- N_("Duplicate @e '%Dn' found.\n\tMarking %p (%i) to be rebuilt.\n\n"),
- PROMPT_NONE, 0 },
-
- /* Pass 3 errors */
-
- /* Pass 3: Checking directory connectivity */
- { PR_3_PASS_HEADER,
- N_("Pass 3: Checking @d connectivity\n"),
- PROMPT_NONE, 0 },
-
- /* Root inode not allocated */
- { PR_3_NO_ROOT_INODE,
- N_("@r not allocated. "),
- PROMPT_ALLOCATE, 0 },
-
- /* No room in lost+found */
- { PR_3_EXPAND_LF_DIR,
- N_("No room in @l @d. "),
- PROMPT_EXPAND, 0 },
-
- /* Unconnected directory inode */
- { PR_3_UNCONNECTED_DIR,
- N_("Unconnected @d @i %i (%p)\n"),
- PROMPT_CONNECT, 0 },
-
- /* /lost+found not found */
- { PR_3_NO_LF_DIR,
- N_("/@l not found. "),
- PROMPT_CREATE, PR_PREEN_OK },
-
- /* .. entry is incorrect */
- { PR_3_BAD_DOT_DOT,
- N_("'..' in %Q (%i) is %P (%j), @s %q (%d).\n"),
- PROMPT_FIX, 0 },
-
- /* Bad or non-existent /lost+found. Cannot reconnect */
- { PR_3_NO_LPF,
- N_("Bad or non-existent /@l. Cannot reconnect.\n"),
- PROMPT_NONE, 0 },
-
- /* Could not expand /lost+found */
- { PR_3_CANT_EXPAND_LPF,
- N_("Could not expand /@l: %m\n"),
- PROMPT_NONE, 0 },
-
- /* Could not reconnect inode */
- { PR_3_CANT_RECONNECT,
- N_("Could not reconnect %i: %m\n"),
- PROMPT_NONE, 0 },
-
- /* Error while trying to find /lost+found */
- { PR_3_ERR_FIND_LPF,
- N_("Error while trying to find /@l: %m\n"),
- PROMPT_NONE, 0 },
-
- /* Error in ext2fs_new_block while creating /lost+found */
- { PR_3_ERR_LPF_NEW_BLOCK,
- N_("ext2fs_new_@b: %m while trying to create /@l @d\n"),
- PROMPT_NONE, 0 },
-
- /* Error in ext2fs_new_inode while creating /lost+found */
- { PR_3_ERR_LPF_NEW_INODE,
- N_("ext2fs_new_@i: %m while trying to create /@l @d\n"),
- PROMPT_NONE, 0 },
-
- /* Error in ext2fs_new_dir_block while creating /lost+found */
- { PR_3_ERR_LPF_NEW_DIR_BLOCK,
- N_("ext2fs_new_dir_@b: %m while creating new @d @b\n"),
- PROMPT_NONE, 0 },
-
- /* Error while writing directory block for /lost+found */
- { PR_3_ERR_LPF_WRITE_BLOCK,
- N_("ext2fs_write_dir_@b: %m while writing the @d @b for /@l\n"),
- PROMPT_NONE, 0 },
-
- /* Error while adjusting inode count */
- { PR_3_ADJUST_INODE,
- N_("Error while adjusting @i count on @i %i\n"),
- PROMPT_NONE, 0 },
-
- /* Couldn't fix parent directory -- error */
- { PR_3_FIX_PARENT_ERR,
- N_("Couldn't fix parent of @i %i: %m\n\n"),
- PROMPT_NONE, 0 },
-
- /* Couldn't fix parent directory -- couldn't find it */
- { PR_3_FIX_PARENT_NOFIND,
- N_("Couldn't fix parent of @i %i: Couldn't find parent @d entry\n\n"),
- PROMPT_NONE, 0 },
-
- /* Error allocating inode bitmap */
- { PR_3_ALLOCATE_IBITMAP_ERROR,
- N_("@A @i @B (%N): %m\n"),
- PROMPT_NONE, PR_FATAL },
-
- /* Error creating root directory */
- { PR_3_CREATE_ROOT_ERROR,
- N_("Error creating root @d (%s): %m\n"),
- PROMPT_NONE, PR_FATAL },
-
- /* Error creating lost and found directory */
- { PR_3_CREATE_LPF_ERROR,
- N_("Error creating /@l @d (%s): %m\n"),
- PROMPT_NONE, PR_FATAL },
-
- /* Root inode is not directory; aborting */
- { PR_3_ROOT_NOT_DIR_ABORT,
- N_("@r is not a @d; aborting.\n"),
- PROMPT_NONE, PR_FATAL },
-
- /* Cannot proceed without a root inode. */
- { PR_3_NO_ROOT_INODE_ABORT,
- N_("Cannot proceed without a @r.\n"),
- PROMPT_NONE, PR_FATAL },
-
- /* Internal error: couldn't find dir_info */
- { PR_3_NO_DIRINFO,
- N_("Internal error: couldn't find dir_info for %i.\n"),
- PROMPT_NONE, PR_FATAL },
-
- /* Lost+found not a directory */
- { PR_3_LPF_NOTDIR,
- N_("/@l is not a @d (ino=%i)\n"),
- PROMPT_UNLINK, 0 },
-
- /* Pass 3A Directory Optimization */
-
- /* Pass 3A: Optimizing directories */
- { PR_3A_PASS_HEADER,
- N_("Pass 3A: Optimizing directories\n"),
- PROMPT_NONE, PR_PREEN_NOMSG },
-
- /* Error iterating over directories */
- { PR_3A_OPTIMIZE_ITER,
- N_("Failed to create dirs_to_hash iterator: %m"),
- PROMPT_NONE, 0 },
-
- /* Error rehash directory */
- { PR_3A_OPTIMIZE_DIR_ERR,
- N_("Failed to optimize directory %q (%d): %m"),
- PROMPT_NONE, 0 },
-
- /* Rehashing dir header */
- { PR_3A_OPTIMIZE_DIR_HEADER,
- N_("Optimizing directories: "),
- PROMPT_NONE, PR_MSG_ONLY },
-
- /* Rehashing directory %d */
- { PR_3A_OPTIMIZE_DIR,
- " %d",
- PROMPT_NONE, PR_LATCH_OPTIMIZE_DIR | PR_PREEN_NOHDR},
-
- /* Rehashing dir end */
- { PR_3A_OPTIMIZE_DIR_END,
- "\n",
- PROMPT_NONE, PR_PREEN_NOHDR },
-
- /* Pass 4 errors */
-
- /* Pass 4: Checking reference counts */
- { PR_4_PASS_HEADER,
- N_("Pass 4: Checking reference counts\n"),
- PROMPT_NONE, 0 },
-
- /* Unattached zero-length inode */
- { PR_4_ZERO_LEN_INODE,
- "@u @z @i %i. ",
- PROMPT_CLEAR, PR_PREEN_OK|PR_NO_OK },
-
- /* Unattached inode */
- { PR_4_UNATTACHED_INODE,
- "@u @i %i\n",
- PROMPT_CONNECT, 0 },
-
- /* Inode ref count wrong */
- { PR_4_BAD_REF_COUNT,
- N_("@i %i ref count is %Il, @s %N. "),
- PROMPT_FIX, PR_PREEN_OK },
-
- { PR_4_INCONSISTENT_COUNT,
- N_("WARNING: PROGRAMMING BUG IN E2FSCK!\n"
- "\tOR SOME BONEHEAD (YOU) IS CHECKING A MOUNTED (LIVE) FILESYSTEM.\n"
- "@i_link_info[%i] is %N, @i.i_links_count is %Il. "
- "They should be the same!\n"),
- PROMPT_NONE, 0 },
-
- /* Pass 5 errors */
-
- /* Pass 5: Checking group summary information */
- { PR_5_PASS_HEADER,
- N_("Pass 5: Checking @g summary information\n"),
- PROMPT_NONE, 0 },
-
- /* Padding at end of inode bitmap is not set. */
- { PR_5_INODE_BMAP_PADDING,
- N_("Padding at end of @i @B is not set. "),
- PROMPT_FIX, PR_PREEN_OK },
-
- /* Padding at end of block bitmap is not set. */
- { PR_5_BLOCK_BMAP_PADDING,
- N_("Padding at end of @b @B is not set. "),
- PROMPT_FIX, PR_PREEN_OK },
-
- /* Block bitmap differences header */
- { PR_5_BLOCK_BITMAP_HEADER,
- N_("@b @B differences: "),
- PROMPT_NONE, PR_PREEN_OK | PR_PREEN_NOMSG},
-
- /* Block not used, but marked in bitmap */
- { PR_5_BLOCK_UNUSED,
- " -%b",
- PROMPT_NONE, PR_LATCH_BBITMAP | PR_PREEN_OK | PR_PREEN_NOMSG },
-
- /* Block used, but not marked used in bitmap */
- { PR_5_BLOCK_USED,
- " +%b",
- PROMPT_NONE, PR_LATCH_BBITMAP | PR_PREEN_OK | PR_PREEN_NOMSG },
-
- /* Block bitmap differences end */
- { PR_5_BLOCK_BITMAP_END,
- "\n",
- PROMPT_FIX, PR_PREEN_OK | PR_PREEN_NOMSG },
-
- /* Inode bitmap differences header */
- { PR_5_INODE_BITMAP_HEADER,
- N_("@i @B differences: "),
- PROMPT_NONE, PR_PREEN_OK | PR_PREEN_NOMSG },
-
- /* Inode not used, but marked in bitmap */
- { PR_5_INODE_UNUSED,
- " -%i",
- PROMPT_NONE, PR_LATCH_IBITMAP | PR_PREEN_OK | PR_PREEN_NOMSG },
-
- /* Inode used, but not marked used in bitmap */
- { PR_5_INODE_USED,
- " +%i",
- PROMPT_NONE, PR_LATCH_IBITMAP | PR_PREEN_OK | PR_PREEN_NOMSG },
-
- /* Inode bitmap differences end */
- { PR_5_INODE_BITMAP_END,
- "\n",
- PROMPT_FIX, PR_PREEN_OK | PR_PREEN_NOMSG },
-
- /* Free inodes count for group wrong */
- { PR_5_FREE_INODE_COUNT_GROUP,
- N_("Free @is count wrong for @g #%g (%i, counted=%j).\n"),
- PROMPT_FIX, PR_PREEN_OK | PR_PREEN_NOMSG },
-
- /* Directories count for group wrong */
- { PR_5_FREE_DIR_COUNT_GROUP,
- N_("Directories count wrong for @g #%g (%i, counted=%j).\n"),
- PROMPT_FIX, PR_PREEN_OK | PR_PREEN_NOMSG },
-
- /* Free inodes count wrong */
- { PR_5_FREE_INODE_COUNT,
- N_("Free @is count wrong (%i, counted=%j).\n"),
- PROMPT_FIX, PR_PREEN_OK | PR_PREEN_NOMSG },
-
- /* Free blocks count for group wrong */
- { PR_5_FREE_BLOCK_COUNT_GROUP,
- N_("Free @bs count wrong for @g #%g (%b, counted=%c).\n"),
- PROMPT_FIX, PR_PREEN_OK | PR_PREEN_NOMSG },
-
- /* Free blocks count wrong */
- { PR_5_FREE_BLOCK_COUNT,
- N_("Free @bs count wrong (%b, counted=%c).\n"),
- PROMPT_FIX, PR_PREEN_OK | PR_PREEN_NOMSG },
-
- /* Programming error: bitmap endpoints don't match */
- { PR_5_BMAP_ENDPOINTS,
- N_("PROGRAMMING ERROR: @f (#%N) @B endpoints (%b, %c) don't "
- "match calculated @B endpoints (%i, %j)\n"),
- PROMPT_NONE, PR_FATAL },
-
- /* Internal error: fudging end of bitmap */
- { PR_5_FUDGE_BITMAP_ERROR,
- N_("Internal error: fudging end of bitmap (%N)\n"),
- PROMPT_NONE, PR_FATAL },
-
- /* Error copying in replacement inode bitmap */
- { PR_5_COPY_IBITMAP_ERROR,
- "Error copying in replacement @i @B: %m\n",
- PROMPT_NONE, PR_FATAL },
-
- /* Error copying in replacement block bitmap */
- { PR_5_COPY_BBITMAP_ERROR,
- "Error copying in replacement @b @B: %m\n",
- PROMPT_NONE, PR_FATAL },
-
- /* Block range not used, but marked in bitmap */
- { PR_5_BLOCK_RANGE_UNUSED,
- " -(%b--%c)",
- PROMPT_NONE, PR_LATCH_BBITMAP | PR_PREEN_OK | PR_PREEN_NOMSG },
-
- /* Block range used, but not marked used in bitmap */
- { PR_5_BLOCK_RANGE_USED,
- " +(%b--%c)",
- PROMPT_NONE, PR_LATCH_BBITMAP | PR_PREEN_OK | PR_PREEN_NOMSG },
-
- /* Inode range not used, but marked in bitmap */
- { PR_5_INODE_RANGE_UNUSED,
- " -(%i--%j)",
- PROMPT_NONE, PR_LATCH_IBITMAP | PR_PREEN_OK | PR_PREEN_NOMSG },
-
- /* Inode range used, but not marked used in bitmap */
- { PR_5_INODE_RANGE_USED,
- " +(%i--%j)",
- PROMPT_NONE, PR_LATCH_IBITMAP | PR_PREEN_OK | PR_PREEN_NOMSG },
-
- { 0 }
-};
-
-/*
- * This is the latch flags register. It allows several problems to be
- * "latched" together. This means that the user has to answer but one
- * question for the set of problems, and all of the associated
- * problems will be either fixed or not fixed.
- */
-static struct latch_descr pr_latch_info[] = {
- { PR_LATCH_BLOCK, PR_1_INODE_BLOCK_LATCH, 0 },
- { PR_LATCH_BBLOCK, PR_1_INODE_BBLOCK_LATCH, 0 },
- { PR_LATCH_IBITMAP, PR_5_INODE_BITMAP_HEADER, PR_5_INODE_BITMAP_END },
- { PR_LATCH_BBITMAP, PR_5_BLOCK_BITMAP_HEADER, PR_5_BLOCK_BITMAP_END },
- { PR_LATCH_RELOC, PR_0_RELOCATE_HINT, 0 },
- { PR_LATCH_DBLOCK, PR_1B_DUP_BLOCK_HEADER, PR_1B_DUP_BLOCK_END },
- { PR_LATCH_LOW_DTIME, PR_1_ORPHAN_LIST_REFUGEES, 0 },
- { PR_LATCH_TOOBIG, PR_1_INODE_TOOBIG, 0 },
- { PR_LATCH_OPTIMIZE_DIR, PR_3A_OPTIMIZE_DIR_HEADER, PR_3A_OPTIMIZE_DIR_END },
- { -1, 0, 0 },
-};
-
-static const struct e2fsck_problem *find_problem(problem_t code)
-{
- int i;
-
- for (i=0; problem_table[i].e2p_code; i++) {
- if (problem_table[i].e2p_code == code)
- return &problem_table[i];
- }
- return 0;
-}
-
-static struct latch_descr *find_latch(int code)
-{
- int i;
-
- for (i=0; pr_latch_info[i].latch_code >= 0; i++) {
- if (pr_latch_info[i].latch_code == code)
- return &pr_latch_info[i];
- }
- return 0;
-}
-
-int end_problem_latch(e2fsck_t ctx, int mask)
-{
- struct latch_descr *ldesc;
- struct problem_context pctx;
- int answer = -1;
-
- ldesc = find_latch(mask);
- if (ldesc->end_message && (ldesc->flags & PRL_LATCHED)) {
- clear_problem_context(&pctx);
- answer = fix_problem(ctx, ldesc->end_message, &pctx);
- }
- ldesc->flags &= ~(PRL_VARIABLE);
- return answer;
-}
-
-int set_latch_flags(int mask, int setflags, int clearflags)
-{
- struct latch_descr *ldesc;
-
- ldesc = find_latch(mask);
- if (!ldesc)
- return -1;
- ldesc->flags |= setflags;
- ldesc->flags &= ~clearflags;
- return 0;
-}
-
-int get_latch_flags(int mask, int *value)
-{
- struct latch_descr *ldesc;
-
- ldesc = find_latch(mask);
- if (!ldesc)
- return -1;
- *value = ldesc->flags;
- return 0;
-}
-
-void clear_problem_context(struct problem_context *ctx)
-{
- memset(ctx, 0, sizeof(struct problem_context));
- ctx->blkcount = -1;
- ctx->group = -1;
-}
-
-int fix_problem(e2fsck_t ctx, problem_t code, struct problem_context *pctx)
-{
- ext2_filsys fs = ctx->fs;
- const struct e2fsck_problem *ptr;
- struct latch_descr *ldesc = 0;
- const char *message;
- int def_yn, answer, ans;
- int print_answer = 0;
- int suppress = 0;
-
- ptr = find_problem(code);
- if (!ptr) {
- printf(_("Unhandled error code (0x%x)!\n"), code);
- return 0;
- }
- def_yn = 1;
- if ((ptr->flags & PR_NO_DEFAULT) ||
- ((ptr->flags & PR_PREEN_NO) && (ctx->options & E2F_OPT_PREEN)) ||
- (ctx->options & E2F_OPT_NO))
- def_yn= 0;
-
- /*
- * Do special latch processing. This is where we ask the
- * latch question, if it exists
- */
- if (ptr->flags & PR_LATCH_MASK) {
- ldesc = find_latch(ptr->flags & PR_LATCH_MASK);
- if (ldesc->question && !(ldesc->flags & PRL_LATCHED)) {
- ans = fix_problem(ctx, ldesc->question, pctx);
- if (ans == 1)
- ldesc->flags |= PRL_YES;
- if (ans == 0)
- ldesc->flags |= PRL_NO;
- ldesc->flags |= PRL_LATCHED;
- }
- if (ldesc->flags & PRL_SUPPRESS)
- suppress++;
- }
- if ((ptr->flags & PR_PREEN_NOMSG) &&
- (ctx->options & E2F_OPT_PREEN))
- suppress++;
- if ((ptr->flags & PR_NO_NOMSG) &&
- (ctx->options & E2F_OPT_NO))
- suppress++;
- if (!suppress) {
- message = ptr->e2p_description;
- if ((ctx->options & E2F_OPT_PREEN) &&
- !(ptr->flags & PR_PREEN_NOHDR)) {
- printf("%s: ", ctx->device_name ?
- ctx->device_name : ctx->filesystem_name);
- }
- if (*message)
- print_e2fsck_message(ctx, _(message), pctx, 1);
- }
- if (!(ptr->flags & PR_PREEN_OK) && (ptr->prompt != PROMPT_NONE))
- preenhalt(ctx);
-
- if (ptr->flags & PR_FATAL)
- fatal_error(ctx, 0);
-
- if (ptr->prompt == PROMPT_NONE) {
- if (ptr->flags & PR_NOCOLLATE)
- answer = -1;
- else
- answer = def_yn;
- } else {
- if (ctx->options & E2F_OPT_PREEN) {
- answer = def_yn;
- if (!(ptr->flags & PR_PREEN_NOMSG))
- print_answer = 1;
- } else if ((ptr->flags & PR_LATCH_MASK) &&
- (ldesc->flags & (PRL_YES | PRL_NO))) {
- if (!suppress)
- print_answer = 1;
- if (ldesc->flags & PRL_YES)
- answer = 1;
- else
- answer = 0;
- } else
- answer = ask(ctx, _(prompt[(int) ptr->prompt]), def_yn);
- if (!answer && !(ptr->flags & PR_NO_OK))
- ext2fs_unmark_valid(fs);
-
- if (print_answer)
- printf("%s.\n", answer ?
- _(preen_msg[(int) ptr->prompt]) : _("IGNORED"));
-
- }
-
- if ((ptr->prompt == PROMPT_ABORT) && answer)
- fatal_error(ctx, 0);
-
- if (ptr->flags & PR_AFTER_CODE)
- answer = fix_problem(ctx, ptr->second_code, pctx);
-
- return answer;
-}
+++ /dev/null
-/*
- * problem.h --- e2fsck problem error codes
- *
- * Copyright 1996 by Theodore Ts'o
- *
- * %Begin-Header%
- * This file may be redistributed under the terms of the GNU Public
- * License.
- * %End-Header%
- */
-
-typedef __u32 problem_t;
-
-struct problem_context {
- errcode_t errcode;
- ext2_ino_t ino, ino2, dir;
- struct ext2_inode *inode;
- struct ext2_dir_entry *dirent;
- blk_t blk, blk2;
- e2_blkcnt_t blkcount;
- int group;
- __u64 num;
- const char *str;
-};
-
-/*
- * We define a set of "latch groups"; these are problems which are
- * handled as a set. The user answers once for a particular latch
- * group.
- */
-#define PR_LATCH_MASK 0x0ff0 /* Latch mask */
-#define PR_LATCH_BLOCK 0x0010 /* Latch for illegal blocks (pass 1) */
-#define PR_LATCH_BBLOCK 0x0020 /* Latch for bad block inode blocks (pass 1) */
-#define PR_LATCH_IBITMAP 0x0030 /* Latch for pass 5 inode bitmap proc. */
-#define PR_LATCH_BBITMAP 0x0040 /* Latch for pass 5 inode bitmap proc. */
-#define PR_LATCH_RELOC 0x0050 /* Latch for superblock relocate hint */
-#define PR_LATCH_DBLOCK 0x0060 /* Latch for pass 1b dup block headers */
-#define PR_LATCH_LOW_DTIME 0x0070 /* Latch for pass1 orphaned list refugees */
-#define PR_LATCH_TOOBIG 0x0080 /* Latch for file to big errors */
-#define PR_LATCH_OPTIMIZE_DIR 0x0090 /* Latch for optimize directories */
-
-#define PR_LATCH(x) ((((x) & PR_LATCH_MASK) >> 4) - 1)
-
-/*
- * Latch group descriptor flags
- */
-#define PRL_YES 0x0001 /* Answer yes */
-#define PRL_NO 0x0002 /* Answer no */
-#define PRL_LATCHED 0x0004 /* The latch group is latched */
-#define PRL_SUPPRESS 0x0008 /* Suppress all latch group questions */
-
-#define PRL_VARIABLE 0x000f /* All the flags that need to be reset */
-
-/*
- * Pre-Pass 1 errors
- */
-
-/* Block bitmap not in group */
-#define PR_0_BB_NOT_GROUP 0x000001
-
-/* Inode bitmap not in group */
-#define PR_0_IB_NOT_GROUP 0x000002
-
-/* Inode table not in group */
-#define PR_0_ITABLE_NOT_GROUP 0x000003
-
-/* Superblock corrupt */
-#define PR_0_SB_CORRUPT 0x000004
-
-/* Filesystem size is wrong */
-#define PR_0_FS_SIZE_WRONG 0x000005
-
-/* Fragments not supported */
-#define PR_0_NO_FRAGMENTS 0x000006
-
-/* Bad blocks_per_group */
-#define PR_0_BLOCKS_PER_GROUP 0x000007
-
-/* Bad first_data_block */
-#define PR_0_FIRST_DATA_BLOCK 0x000008
-
-/* Adding UUID to filesystem */
-#define PR_0_ADD_UUID 0x000009
-
-/* Relocate hint */
-#define PR_0_RELOCATE_HINT 0x00000A
-
-/* Miscellaneous superblock corruption */
-#define PR_0_MISC_CORRUPT_SUPER 0x00000B
-
-/* Error determing physical device size of filesystem */
-#define PR_0_GETSIZE_ERROR 0x00000C
-
-/* Inode count in the superblock incorrect */
-#define PR_0_INODE_COUNT_WRONG 0x00000D
-
-/* The Hurd does not support the filetype feature */
-#define PR_0_HURD_CLEAR_FILETYPE 0x00000E
-
-/* Journal inode is invalid */
-#define PR_0_JOURNAL_BAD_INODE 0x00000F
-
-/* The external journal has multiple filesystems (which we can't handle yet) */
-#define PR_0_JOURNAL_UNSUPP_MULTIFS 0x000010
-
-/* Can't find external journal */
-#define PR_0_CANT_FIND_JOURNAL 0x000011
-
-/* External journal has bad superblock */
-#define PR_0_EXT_JOURNAL_BAD_SUPER 0x000012
-
-/* Superblock has a bad journal UUID */
-#define PR_0_JOURNAL_BAD_UUID 0x000013
-
-/* Journal has an unknown superblock type */
-#define PR_0_JOURNAL_UNSUPP_SUPER 0x000014
-
-/* Journal superblock is corrupt */
-#define PR_0_JOURNAL_BAD_SUPER 0x000015
-
-/* Journal superblock is corrupt */
-#define PR_0_JOURNAL_HAS_JOURNAL 0x000016
-
-/* Superblock has recovery flag set but no journal */
-#define PR_0_JOURNAL_RECOVER_SET 0x000017
-
-/* Journal has data, but recovery flag is clear */
-#define PR_0_JOURNAL_RECOVERY_CLEAR 0x000018
-
-/* Ask if we should clear the journal */
-#define PR_0_JOURNAL_RESET_JOURNAL 0x000019
-
-/* Filesystem revision is 0, but feature flags are set */
-#define PR_0_FS_REV_LEVEL 0x00001A
-
-/* Clearing orphan inode */
-#define PR_0_ORPHAN_CLEAR_INODE 0x000020
-
-/* Illegal block found in orphaned inode */
-#define PR_0_ORPHAN_ILLEGAL_BLOCK_NUM 0x000021
-
-/* Already cleared block found in orphaned inode */
-#define PR_0_ORPHAN_ALREADY_CLEARED_BLOCK 0x000022
-
-/* Illegal orphan inode in superblock */
-#define PR_0_ORPHAN_ILLEGAL_HEAD_INODE 0x000023
-
-/* Illegal inode in orphaned inode list */
-#define PR_0_ORPHAN_ILLEGAL_INODE 0x000024
-
-/* Journal has unsupported read-only feature - abort */
-#define PR_0_JOURNAL_UNSUPP_ROCOMPAT 0x000025
-
-/* Journal has unsupported incompatible feature - abort */
-#define PR_0_JOURNAL_UNSUPP_INCOMPAT 0x000026
-
-/* Journal has unsupported version number */
-#define PR_0_JOURNAL_UNSUPP_VERSION 0x000027
-
-/* Moving journal to hidden file */
-#define PR_0_MOVE_JOURNAL 0x000028
-
-/* Error moving journal */
-#define PR_0_ERR_MOVE_JOURNAL 0x000029
-
-/* Clearing V2 journal superblock */
-#define PR_0_CLEAR_V2_JOURNAL 0x00002A
-
-/* Run journal anyway */
-#define PR_0_JOURNAL_RUN 0x00002B
-
-/* Run journal anyway by default */
-#define PR_0_JOURNAL_RUN_DEFAULT 0x00002C
-
-/* Backup journal inode blocks */
-#define PR_0_BACKUP_JNL 0x00002D
-
-/* Reserved blocks w/o resize_inode */
-#define PR_0_NONZERO_RESERVED_GDT_BLOCKS 0x00002E
-
-/* Resize_inode not enabled, but resize inode is non-zero */
-#define PR_0_CLEAR_RESIZE_INODE 0x00002F
-
-/* Resize inode invalid */
-#define PR_0_RESIZE_INODE_INVALID 0x000030
-
-/*
- * Pass 1 errors
- */
-
-/* Pass 1: Checking inodes, blocks, and sizes */
-#define PR_1_PASS_HEADER 0x010000
-
-/* Root directory is not an inode */
-#define PR_1_ROOT_NO_DIR 0x010001
-
-/* Root directory has dtime set */
-#define PR_1_ROOT_DTIME 0x010002
-
-/* Reserved inode has bad mode */
-#define PR_1_RESERVED_BAD_MODE 0x010003
-
-/* Deleted inode has zero dtime */
-#define PR_1_ZERO_DTIME 0x010004
-
-/* Inode in use, but dtime set */
-#define PR_1_SET_DTIME 0x010005
-
-/* Zero-length directory */
-#define PR_1_ZERO_LENGTH_DIR 0x010006
-
-/* Block bitmap conflicts with some other fs block */
-#define PR_1_BB_CONFLICT 0x010007
-
-/* Inode bitmap conflicts with some other fs block */
-#define PR_1_IB_CONFLICT 0x010008
-
-/* Inode table conflicts with some other fs block */
-#define PR_1_ITABLE_CONFLICT 0x010009
-
-/* Block bitmap is on a bad block */
-#define PR_1_BB_BAD_BLOCK 0x01000A
-
-/* Inode bitmap is on a bad block */
-#define PR_1_IB_BAD_BLOCK 0x01000B
-
-/* Inode has incorrect i_size */
-#define PR_1_BAD_I_SIZE 0x01000C
-
-/* Inode has incorrect i_blocks */
-#define PR_1_BAD_I_BLOCKS 0x01000D
-
-/* Illegal block number in inode */
-#define PR_1_ILLEGAL_BLOCK_NUM 0x01000E
-
-/* Block number overlaps fs metadata */
-#define PR_1_BLOCK_OVERLAPS_METADATA 0x01000F
-
-/* Inode has illegal blocks (latch question) */
-#define PR_1_INODE_BLOCK_LATCH 0x010010
-
-/* Too many bad blocks in inode */
-#define PR_1_TOO_MANY_BAD_BLOCKS 0x010011
-
-/* Illegal block number in bad block inode */
-#define PR_1_BB_ILLEGAL_BLOCK_NUM 0x010012
-
-/* Bad block inode has illegal blocks (latch question) */
-#define PR_1_INODE_BBLOCK_LATCH 0x010013
-
-/* Duplicate or bad blocks in use! */
-#define PR_1_DUP_BLOCKS_PREENSTOP 0x010014
-
-/* Bad block used as bad block indirect block */
-#define PR_1_BBINODE_BAD_METABLOCK 0x010015
-
-/* Inconsistency can't be fixed prompt */
-#define PR_1_BBINODE_BAD_METABLOCK_PROMPT 0x010016
-
-/* Bad primary block */
-#define PR_1_BAD_PRIMARY_BLOCK 0x010017
-
-/* Bad primary block prompt */
-#define PR_1_BAD_PRIMARY_BLOCK_PROMPT 0x010018
-
-/* Bad primary superblock */
-#define PR_1_BAD_PRIMARY_SUPERBLOCK 0x010019
-
-/* Bad primary block group descriptors */
-#define PR_1_BAD_PRIMARY_GROUP_DESCRIPTOR 0x01001A
-
-/* Bad superblock in group */
-#define PR_1_BAD_SUPERBLOCK 0x01001B
-
-/* Bad block group descriptors in group */
-#define PR_1_BAD_GROUP_DESCRIPTORS 0x01001C
-
-/* Block claimed for no reason */
-#define PR_1_PROGERR_CLAIMED_BLOCK 0x01001D
-
-/* Error allocating blocks for relocating metadata */
-#define PR_1_RELOC_BLOCK_ALLOCATE 0x01001E
-
-/* Error allocating block buffer during relocation process */
-#define PR_1_RELOC_MEMORY_ALLOCATE 0x01001F
-
-/* Relocating metadata group information from X to Y */
-#define PR_1_RELOC_FROM_TO 0x010020
-
-/* Relocating metatdata group information to X */
-#define PR_1_RELOC_TO 0x010021
-
-/* Block read error during relocation process */
-#define PR_1_RELOC_READ_ERR 0x010022
-
-/* Block write error during relocation process */
-#define PR_1_RELOC_WRITE_ERR 0x010023
-
-/* Error allocating inode bitmap */
-#define PR_1_ALLOCATE_IBITMAP_ERROR 0x010024
-
-/* Error allocating block bitmap */
-#define PR_1_ALLOCATE_BBITMAP_ERROR 0x010025
-
-/* Error allocating icount structure */
-#define PR_1_ALLOCATE_ICOUNT 0x010026
-
-/* Error allocating dbcount */
-#define PR_1_ALLOCATE_DBCOUNT 0x010027
-
-/* Error while scanning inodes */
-#define PR_1_ISCAN_ERROR 0x010028
-
-/* Error while iterating over blocks */
-#define PR_1_BLOCK_ITERATE 0x010029
-
-/* Error while storing inode count information */
-#define PR_1_ICOUNT_STORE 0x01002A
-
-/* Error while storing directory block information */
-#define PR_1_ADD_DBLOCK 0x01002B
-
-/* Error while reading inode (for clearing) */
-#define PR_1_READ_INODE 0x01002C
-
-/* Suppress messages prompt */
-#define PR_1_SUPPRESS_MESSAGES 0x01002D
-
-/* Imagic flag set on an inode when filesystem doesn't support it */
-#define PR_1_SET_IMAGIC 0x01002F
-
-/* Immutable flag set on a device or socket inode */
-#define PR_1_SET_IMMUTABLE 0x010030
-
-/* Compression flag set on a non-compressed filesystem */
-#define PR_1_COMPR_SET 0x010031
-
-/* Non-zero size on on device, fifo or socket inode */
-#define PR_1_SET_NONZSIZE 0x010032
-
-/* Filesystem revision is 0, but feature flags are set */
-#define PR_1_FS_REV_LEVEL 0x010033
-
-/* Journal inode not in use, needs clearing */
-#define PR_1_JOURNAL_INODE_NOT_CLEAR 0x010034
-
-/* Journal inode has wrong mode */
-#define PR_1_JOURNAL_BAD_MODE 0x010035
-
-/* Inode that was part of orphan linked list */
-#define PR_1_LOW_DTIME 0x010036
-
-/* Latch question which asks how to deal with low dtime inodes */
-#define PR_1_ORPHAN_LIST_REFUGEES 0x010037
-
-/* Error allocating refcount structure */
-#define PR_1_ALLOCATE_REFCOUNT 0x010038
-
-/* Error reading Extended Attribute block */
-#define PR_1_READ_EA_BLOCK 0x010039
-
-/* Invalid Extended Attribute block */
-#define PR_1_BAD_EA_BLOCK 0x01003A
-
-/* Error reading Extended Attribute block while fixing refcount -- abort */
-#define PR_1_EXTATTR_READ_ABORT 0x01003B
-
-/* Extended attribute reference count incorrect */
-#define PR_1_EXTATTR_REFCOUNT 0x01003C
-
-/* Error writing Extended Attribute block while fixing refcount */
-#define PR_1_EXTATTR_WRITE 0x01003D
-
-/* Multiple EA blocks not supported */
-#define PR_1_EA_MULTI_BLOCK 0x01003E
-
-/* Error allocating EA region allocation structure */
-#define PR_1_EA_ALLOC_REGION 0x01003F
-
-/* Error EA allocation collision */
-#define PR_1_EA_ALLOC_COLLISION 0x010040
-
-/* Bad extended attribute name */
-#define PR_1_EA_BAD_NAME 0x010041
-
-/* Bad extended attribute value */
-#define PR_1_EA_BAD_VALUE 0x010042
-
-/* Inode too big (latch question) */
-#define PR_1_INODE_TOOBIG 0x010043
-
-/* Directory too big */
-#define PR_1_TOOBIG_DIR 0x010044
-
-/* Regular file too big */
-#define PR_1_TOOBIG_REG 0x010045
-
-/* Symlink too big */
-#define PR_1_TOOBIG_SYMLINK 0x010046
-
-/* INDEX_FL flag set on a non-HTREE filesystem */
-#define PR_1_HTREE_SET 0x010047
-
-/* INDEX_FL flag set on a non-directory */
-#define PR_1_HTREE_NODIR 0x010048
-
-/* Invalid root node in HTREE directory */
-#define PR_1_HTREE_BADROOT 0x010049
-
-/* Unsupported hash version in HTREE directory */
-#define PR_1_HTREE_HASHV 0x01004A
-
-/* Incompatible flag in HTREE root node */
-#define PR_1_HTREE_INCOMPAT 0x01004B
-
-/* HTREE too deep */
-#define PR_1_HTREE_DEPTH 0x01004C
-
-/* Bad block has indirect block that conflicts with filesystem block */
-#define PR_1_BB_FS_BLOCK 0x01004D
-
-/* Resize inode failed */
-#define PR_1_RESIZE_INODE_CREATE 0x01004E
-
-/* inode->i_size is too long */
-#define PR_1_EXTRA_ISIZE 0x01004F
-
-/* attribute name is too long */
-#define PR_1_ATTR_NAME_LEN 0x010050
-
-/* wrong EA value offset */
-#define PR_1_ATTR_VALUE_OFFSET 0x010051
-
-/* wrong EA blocknumber */
-#define PR_1_ATTR_VALUE_BLOCK 0x010052
-
-/* wrong EA value size */
-#define PR_1_ATTR_VALUE_SIZE 0x010053
-
-/* wrong EA hash value */
-#define PR_1_ATTR_HASH 0x010054
-
-/*
- * Pass 1b errors
- */
-
-/* Pass 1B: Rescan for duplicate/bad blocks */
-#define PR_1B_PASS_HEADER 0x011000
-
-/* Duplicate/bad block(s) header */
-#define PR_1B_DUP_BLOCK_HEADER 0x011001
-
-/* Duplicate/bad block(s) in inode */
-#define PR_1B_DUP_BLOCK 0x011002
-
-/* Duplicate/bad block(s) end */
-#define PR_1B_DUP_BLOCK_END 0x011003
-
-/* Error while scanning inodes */
-#define PR_1B_ISCAN_ERROR 0x011004
-
-/* Error allocating inode bitmap */
-#define PR_1B_ALLOCATE_IBITMAP_ERROR 0x011005
-
-/* Error while iterating over blocks */
-#define PR_1B_BLOCK_ITERATE 0x0110006
-
-/* Error adjusting EA refcount */
-#define PR_1B_ADJ_EA_REFCOUNT 0x0110007
-
-
-/* Pass 1C: Scan directories for inodes with dup blocks. */
-#define PR_1C_PASS_HEADER 0x012000
-
-
-/* Pass 1D: Reconciling duplicate blocks */
-#define PR_1D_PASS_HEADER 0x013000
-
-/* File has duplicate blocks */
-#define PR_1D_DUP_FILE 0x013001
-
-/* List of files sharing duplicate blocks */
-#define PR_1D_DUP_FILE_LIST 0x013002
-
-/* File sharing blocks with filesystem metadata */
-#define PR_1D_SHARE_METADATA 0x013003
-
-/* Report of how many duplicate/bad inodes */
-#define PR_1D_NUM_DUP_INODES 0x013004
-
-/* Duplicated blocks already reassigned or cloned. */
-#define PR_1D_DUP_BLOCKS_DEALT 0x013005
-
-/* Clone duplicate/bad blocks? */
-#define PR_1D_CLONE_QUESTION 0x013006
-
-/* Delete file? */
-#define PR_1D_DELETE_QUESTION 0x013007
-
-/* Couldn't clone file (error) */
-#define PR_1D_CLONE_ERROR 0x013008
-
-/*
- * Pass 2 errors
- */
-
-/* Pass 2: Checking directory structure */
-#define PR_2_PASS_HEADER 0x020000
-
-/* Bad inode number for '.' */
-#define PR_2_BAD_INODE_DOT 0x020001
-
-/* Directory entry has bad inode number */
-#define PR_2_BAD_INO 0x020002
-
-/* Directory entry has deleted or unused inode */
-#define PR_2_UNUSED_INODE 0x020003
-
-/* Directry entry is link to '.' */
-#define PR_2_LINK_DOT 0x020004
-
-/* Directory entry points to inode now located in a bad block */
-#define PR_2_BB_INODE 0x020005
-
-/* Directory entry contains a link to a directory */
-#define PR_2_LINK_DIR 0x020006
-
-/* Directory entry contains a link to the root directry */
-#define PR_2_LINK_ROOT 0x020007
-
-/* Directory entry has illegal characters in its name */
-#define PR_2_BAD_NAME 0x020008
-
-/* Missing '.' in directory inode */
-#define PR_2_MISSING_DOT 0x020009
-
-/* Missing '..' in directory inode */
-#define PR_2_MISSING_DOT_DOT 0x02000A
-
-/* First entry in directory inode doesn't contain '.' */
-#define PR_2_1ST_NOT_DOT 0x02000B
-
-/* Second entry in directory inode doesn't contain '..' */
-#define PR_2_2ND_NOT_DOT_DOT 0x02000C
-
-/* i_faddr should be zero */
-#define PR_2_FADDR_ZERO 0x02000D
-
-/* i_file_acl should be zero */
-#define PR_2_FILE_ACL_ZERO 0x02000E
-
-/* i_dir_acl should be zero */
-#define PR_2_DIR_ACL_ZERO 0x02000F
-
-/* i_frag should be zero */
-#define PR_2_FRAG_ZERO 0x020010
-
-/* i_fsize should be zero */
-#define PR_2_FSIZE_ZERO 0x020011
-
-/* inode has bad mode */
-#define PR_2_BAD_MODE 0x020012
-
-/* directory corrupted */
-#define PR_2_DIR_CORRUPTED 0x020013
-
-/* filename too long */
-#define PR_2_FILENAME_LONG 0x020014
-
-/* Directory inode has a missing block (hole) */
-#define PR_2_DIRECTORY_HOLE 0x020015
-
-/* '.' is not NULL terminated */
-#define PR_2_DOT_NULL_TERM 0x020016
-
-/* '..' is not NULL terminated */
-#define PR_2_DOT_DOT_NULL_TERM 0x020017
-
-/* Illegal character device in inode */
-#define PR_2_BAD_CHAR_DEV 0x020018
-
-/* Illegal block device in inode */
-#define PR_2_BAD_BLOCK_DEV 0x020019
-
-/* Duplicate '.' entry */
-#define PR_2_DUP_DOT 0x02001A
-
-/* Duplicate '..' entry */
-#define PR_2_DUP_DOT_DOT 0x02001B
-
-/* Internal error: couldn't find dir_info */
-#define PR_2_NO_DIRINFO 0x02001C
-
-/* Final rec_len is wrong */
-#define PR_2_FINAL_RECLEN 0x02001D
-
-/* Error allocating icount structure */
-#define PR_2_ALLOCATE_ICOUNT 0x02001E
-
-/* Error iterating over directory blocks */
-#define PR_2_DBLIST_ITERATE 0x02001F
-
-/* Error reading directory block */
-#define PR_2_READ_DIRBLOCK 0x020020
-
-/* Error writing directory block */
-#define PR_2_WRITE_DIRBLOCK 0x020021
-
-/* Error allocating new directory block */
-#define PR_2_ALLOC_DIRBOCK 0x020022
-
-/* Error deallocating inode */
-#define PR_2_DEALLOC_INODE 0x020023
-
-/* Directory entry for '.' is big. Split? */
-#define PR_2_SPLIT_DOT 0x020024
-
-/* Illegal FIFO */
-#define PR_2_BAD_FIFO 0x020025
-
-/* Illegal socket */
-#define PR_2_BAD_SOCKET 0x020026
-
-/* Directory filetype not set */
-#define PR_2_SET_FILETYPE 0x020027
-
-/* Directory filetype incorrect */
-#define PR_2_BAD_FILETYPE 0x020028
-
-/* Directory filetype set when it shouldn't be */
-#define PR_2_CLEAR_FILETYPE 0x020029
-
-/* Directory filename can't be zero-length */
-#define PR_2_NULL_NAME 0x020030
-
-/* Invalid symlink */
-#define PR_2_INVALID_SYMLINK 0x020031
-
-/* i_file_acl (extended attribute) is bad */
-#define PR_2_FILE_ACL_BAD 0x020032
-
-/* Filesystem contains large files, but has no such flag in sb */
-#define PR_2_FEATURE_LARGE_FILES 0x020033
-
-/* Node in HTREE directory not referenced */
-#define PR_2_HTREE_NOTREF 0x020034
-
-/* Node in HTREE directory referenced twice */
-#define PR_2_HTREE_DUPREF 0x020035
-
-/* Node in HTREE directory has bad min hash */
-#define PR_2_HTREE_MIN_HASH 0x020036
-
-/* Node in HTREE directory has bad max hash */
-#define PR_2_HTREE_MAX_HASH 0x020037
-
-/* Clear invalid HTREE directory */
-#define PR_2_HTREE_CLEAR 0x020038
-
-/* Clear the htree flag forcibly */
-/* #define PR_2_HTREE_FCLR 0x020039 */
-
-/* Bad block in htree interior node */
-#define PR_2_HTREE_BADBLK 0x02003A
-
-/* Error adjusting EA refcount */
-#define PR_2_ADJ_EA_REFCOUNT 0x02003B
-
-/* Invalid HTREE root node */
-#define PR_2_HTREE_BAD_ROOT 0x02003C
-
-/* Invalid HTREE limit */
-#define PR_2_HTREE_BAD_LIMIT 0x02003D
-
-/* Invalid HTREE count */
-#define PR_2_HTREE_BAD_COUNT 0x02003E
-
-/* HTREE interior node has out-of-order hashes in table */
-#define PR_2_HTREE_HASH_ORDER 0x02003F
-
-/* Node in HTREE directory has bad depth */
-#define PR_2_HTREE_BAD_DEPTH 0x020040
-
-/* Duplicate directory entry found */
-#define PR_2_DUPLICATE_DIRENT 0x020041
-
-/* Non-unique filename found */
-#define PR_2_NON_UNIQUE_FILE 0x020042
-
-/* Duplicate directory entry found */
-#define PR_2_REPORT_DUP_DIRENT 0x020043
-
-/*
- * Pass 3 errors
- */
-
-/* Pass 3: Checking directory connectivity */
-#define PR_3_PASS_HEADER 0x030000
-
-/* Root inode not allocated */
-#define PR_3_NO_ROOT_INODE 0x030001
-
-/* No room in lost+found */
-#define PR_3_EXPAND_LF_DIR 0x030002
-
-/* Unconnected directory inode */
-#define PR_3_UNCONNECTED_DIR 0x030003
-
-/* /lost+found not found */
-#define PR_3_NO_LF_DIR 0x030004
-
-/* .. entry is incorrect */
-#define PR_3_BAD_DOT_DOT 0x030005
-
-/* Bad or non-existent /lost+found. Cannot reconnect */
-#define PR_3_NO_LPF 0x030006
-
-/* Could not expand /lost+found */
-#define PR_3_CANT_EXPAND_LPF 0x030007
-
-/* Could not reconnect inode */
-#define PR_3_CANT_RECONNECT 0x030008
-
-/* Error while trying to find /lost+found */
-#define PR_3_ERR_FIND_LPF 0x030009
-
-/* Error in ext2fs_new_block while creating /lost+found */
-#define PR_3_ERR_LPF_NEW_BLOCK 0x03000A
-
-/* Error in ext2fs_new_inode while creating /lost+found */
-#define PR_3_ERR_LPF_NEW_INODE 0x03000B
-
-/* Error in ext2fs_new_dir_block while creating /lost+found */
-#define PR_3_ERR_LPF_NEW_DIR_BLOCK 0x03000C
-
-/* Error while writing directory block for /lost+found */
-#define PR_3_ERR_LPF_WRITE_BLOCK 0x03000D
-
-/* Error while adjusting inode count */
-#define PR_3_ADJUST_INODE 0x03000E
-
-/* Couldn't fix parent directory -- error */
-#define PR_3_FIX_PARENT_ERR 0x03000F
-
-/* Couldn't fix parent directory -- couldn't find it */
-#define PR_3_FIX_PARENT_NOFIND 0x030010
-
-/* Error allocating inode bitmap */
-#define PR_3_ALLOCATE_IBITMAP_ERROR 0x030011
-
-/* Error creating root directory */
-#define PR_3_CREATE_ROOT_ERROR 0x030012
-
-/* Error creating lost and found directory */
-#define PR_3_CREATE_LPF_ERROR 0x030013
-
-/* Root inode is not directory; aborting */
-#define PR_3_ROOT_NOT_DIR_ABORT 0x030014
-
-/* Cannot proceed without a root inode. */
-#define PR_3_NO_ROOT_INODE_ABORT 0x030015
-
-/* Internal error: couldn't find dir_info */
-#define PR_3_NO_DIRINFO 0x030016
-
-/* Lost+found is not a directory */
-#define PR_3_LPF_NOTDIR 0x030017
-
-/*
- * Pass 3a --- rehashing diretories
- */
-/* Pass 3a: Reindexing directories */
-#define PR_3A_PASS_HEADER 0x031000
-
-/* Error iterating over directories */
-#define PR_3A_OPTIMIZE_ITER 0x031001
-
-/* Error rehash directory */
-#define PR_3A_OPTIMIZE_DIR_ERR 0x031002
-
-/* Rehashing dir header */
-#define PR_3A_OPTIMIZE_DIR_HEADER 0x031003
-
-/* Rehashing directory %d */
-#define PR_3A_OPTIMIZE_DIR 0x031004
-
-/* Rehashing dir end */
-#define PR_3A_OPTIMIZE_DIR_END 0x031005
-
-/*
- * Pass 4 errors
- */
-
-/* Pass 4: Checking reference counts */
-#define PR_4_PASS_HEADER 0x040000
-
-/* Unattached zero-length inode */
-#define PR_4_ZERO_LEN_INODE 0x040001
-
-/* Unattached inode */
-#define PR_4_UNATTACHED_INODE 0x040002
-
-/* Inode ref count wrong */
-#define PR_4_BAD_REF_COUNT 0x040003
-
-/* Inconsistent inode count information cached */
-#define PR_4_INCONSISTENT_COUNT 0x040004
-
-/*
- * Pass 5 errors
- */
-
-/* Pass 5: Checking group summary information */
-#define PR_5_PASS_HEADER 0x050000
-
-/* Padding at end of inode bitmap is not set. */
-#define PR_5_INODE_BMAP_PADDING 0x050001
-
-/* Padding at end of block bitmap is not set. */
-#define PR_5_BLOCK_BMAP_PADDING 0x050002
-
-/* Block bitmap differences header */
-#define PR_5_BLOCK_BITMAP_HEADER 0x050003
-
-/* Block not used, but marked in bitmap */
-#define PR_5_BLOCK_UNUSED 0x050004
-
-/* Block used, but not marked used in bitmap */
-#define PR_5_BLOCK_USED 0x050005
-
-/* Block bitmap differences end */
-#define PR_5_BLOCK_BITMAP_END 0x050006
-
-/* Inode bitmap differences header */
-#define PR_5_INODE_BITMAP_HEADER 0x050007
-
-/* Inode not used, but marked in bitmap */
-#define PR_5_INODE_UNUSED 0x050008
-
-/* Inode used, but not marked used in bitmap */
-#define PR_5_INODE_USED 0x050009
-
-/* Inode bitmap differences end */
-#define PR_5_INODE_BITMAP_END 0x05000A
-
-/* Free inodes count for group wrong */
-#define PR_5_FREE_INODE_COUNT_GROUP 0x05000B
-
-/* Directories count for group wrong */
-#define PR_5_FREE_DIR_COUNT_GROUP 0x05000C
-
-/* Free inodes count wrong */
-#define PR_5_FREE_INODE_COUNT 0x05000D
-
-/* Free blocks count for group wrong */
-#define PR_5_FREE_BLOCK_COUNT_GROUP 0x05000E
-
-/* Free blocks count wrong */
-#define PR_5_FREE_BLOCK_COUNT 0x05000F
-
-/* Programming error: bitmap endpoints don't match */
-#define PR_5_BMAP_ENDPOINTS 0x050010
-
-/* Internal error: fudging end of bitmap */
-#define PR_5_FUDGE_BITMAP_ERROR 0x050011
-
-/* Error copying in replacement inode bitmap */
-#define PR_5_COPY_IBITMAP_ERROR 0x050012
-
-/* Error copying in replacement block bitmap */
-#define PR_5_COPY_BBITMAP_ERROR 0x050013
-
-/* Block range not used, but marked in bitmap */
-#define PR_5_BLOCK_RANGE_UNUSED 0x050014
-
-/* Block range used, but not marked used in bitmap */
-#define PR_5_BLOCK_RANGE_USED 0x050015
-
-/* Inode range not used, but marked in bitmap */
-#define PR_5_INODE_RANGE_UNUSED 0x050016
-
-/* Inode rangeused, but not marked used in bitmap */
-#define PR_5_INODE_RANGE_USED 0x050017
-
-/*
- * Function declarations
- */
-int fix_problem(e2fsck_t ctx, problem_t code, struct problem_context *pctx);
-int end_problem_latch(e2fsck_t ctx, int mask);
-int set_latch_flags(int mask, int setflags, int clearflags);
-int get_latch_flags(int mask, int *value);
-void clear_problem_context(struct problem_context *ctx);
-
-/* message.c */
-void print_e2fsck_message(e2fsck_t ctx, const char *msg,
- struct problem_context *pctx, int first);
-
+++ /dev/null
-/*
- * problemP.h --- Private header file for fix_problem()
- *
- * Copyright 1997 by Theodore Ts'o
- *
- * %Begin-Header%
- * This file may be redistributed under the terms of the GNU Public
- * License.
- * %End-Header%
- */
-
-struct e2fsck_problem {
- problem_t e2p_code;
- const char * e2p_description;
- char prompt;
- int flags;
- problem_t second_code;
-};
-
-struct latch_descr {
- int latch_code;
- problem_t question;
- problem_t end_message;
- int flags;
-};
-
-#define PR_PREEN_OK 0x000001 /* Don't need to do preenhalt */
-#define PR_NO_OK 0x000002 /* If user answers no, don't make fs invalid */
-#define PR_NO_DEFAULT 0x000004 /* Default to no */
-#define PR_MSG_ONLY 0x000008 /* Print message only */
-
-/* Bit positions 0x000ff0 are reserved for the PR_LATCH flags */
-
-#define PR_FATAL 0x001000 /* Fatal error */
-#define PR_AFTER_CODE 0x002000 /* After asking the first question, */
- /* ask another */
-#define PR_PREEN_NOMSG 0x004000 /* Don't print a message if we're preening */
-#define PR_NOCOLLATE 0x008000 /* Don't collate answers for this latch */
-#define PR_NO_NOMSG 0x010000 /* Don't print a message if e2fsck -n */
-#define PR_PREEN_NO 0x020000 /* Use No as an answer if preening */
-#define PR_PREEN_NOHDR 0x040000 /* Don't print the preen header */
-
+++ /dev/null
-/*
- * linux/fs/recovery.c
- *
- * Written by Stephen C. Tweedie <sct@redhat.com>, 1999
- *
- * Copyright 1999-2000 Red Hat Software --- All Rights Reserved
- *
- * This file is part of the Linux kernel and is made available under
- * the terms of the GNU General Public License, version 2, or at your
- * option, any later version, incorporated herein by reference.
- *
- * Journal recovery routines for the generic filesystem journaling code;
- * part of the ext2fs journaling system.
- */
-
-#ifndef __KERNEL__
-#include "jfs_user.h"
-#else
-#include <linux/time.h>
-#include <linux/fs.h>
-#include <linux/jbd.h>
-#include <linux/errno.h>
-#include <linux/slab.h>
-#endif
-
-/*
- * Maintain information about the progress of the recovery job, so that
- * the different passes can carry information between them.
- */
-struct recovery_info
-{
- tid_t start_transaction;
- tid_t end_transaction;
-
- int nr_replays;
- int nr_revokes;
- int nr_revoke_hits;
-};
-
-enum passtype {PASS_SCAN, PASS_REVOKE, PASS_REPLAY};
-static int do_one_pass(journal_t *journal,
- struct recovery_info *info, enum passtype pass);
-static int scan_revoke_records(journal_t *, struct buffer_head *,
- tid_t, struct recovery_info *);
-
-#ifdef __KERNEL__
-
-/* Release readahead buffers after use */
-void journal_brelse_array(struct buffer_head *b[], int n)
-{
- while (--n >= 0)
- brelse (b[n]);
-}
-
-
-/*
- * When reading from the journal, we are going through the block device
- * layer directly and so there is no readahead being done for us. We
- * need to implement any readahead ourselves if we want it to happen at
- * all. Recovery is basically one long sequential read, so make sure we
- * do the IO in reasonably large chunks.
- *
- * This is not so critical that we need to be enormously clever about
- * the readahead size, though. 128K is a purely arbitrary, good-enough
- * fixed value.
- */
-
-#define MAXBUF 8
-static int do_readahead(journal_t *journal, unsigned int start)
-{
- int err;
- unsigned int max, nbufs, next;
- unsigned long blocknr;
- struct buffer_head *bh;
-
- struct buffer_head * bufs[MAXBUF];
-
- /* Do up to 128K of readahead */
- max = start + (128 * 1024 / journal->j_blocksize);
- if (max > journal->j_maxlen)
- max = journal->j_maxlen;
-
- /* Do the readahead itself. We'll submit MAXBUF buffer_heads at
- * a time to the block device IO layer. */
-
- nbufs = 0;
-
- for (next = start; next < max; next++) {
- err = journal_bmap(journal, next, &blocknr);
-
- if (err) {
- printk (KERN_ERR "JBD: bad block at offset %u\n",
- next);
- goto failed;
- }
-
- bh = __getblk(journal->j_dev, blocknr, journal->j_blocksize);
- if (!bh) {
- err = -ENOMEM;
- goto failed;
- }
-
- if (!buffer_uptodate(bh) && !buffer_locked(bh)) {
- bufs[nbufs++] = bh;
- if (nbufs == MAXBUF) {
- ll_rw_block(READ, nbufs, bufs);
- journal_brelse_array(bufs, nbufs);
- nbufs = 0;
- }
- } else
- brelse(bh);
- }
-
- if (nbufs)
- ll_rw_block(READ, nbufs, bufs);
- err = 0;
-
-failed:
- if (nbufs)
- journal_brelse_array(bufs, nbufs);
- return err;
-}
-
-#endif /* __KERNEL__ */
-
-
-/*
- * Read a block from the journal
- */
-
-static int jread(struct buffer_head **bhp, journal_t *journal,
- unsigned int offset)
-{
- int err;
- unsigned long blocknr;
- struct buffer_head *bh;
-
- *bhp = NULL;
-
- J_ASSERT (offset < journal->j_maxlen);
-
- err = journal_bmap(journal, offset, &blocknr);
-
- if (err) {
- printk (KERN_ERR "JBD: bad block at offset %u\n",
- offset);
- return err;
- }
-
- bh = __getblk(journal->j_dev, blocknr, journal->j_blocksize);
- if (!bh)
- return -ENOMEM;
-
- if (!buffer_uptodate(bh)) {
- /* If this is a brand new buffer, start readahead.
- Otherwise, we assume we are already reading it. */
- if (!buffer_req(bh))
- do_readahead(journal, offset);
- wait_on_buffer(bh);
- }
-
- if (!buffer_uptodate(bh)) {
- printk (KERN_ERR "JBD: Failed to read block at offset %u\n",
- offset);
- brelse(bh);
- return -EIO;
- }
-
- *bhp = bh;
- return 0;
-}
-
-
-/*
- * Count the number of in-use tags in a journal descriptor block.
- */
-
-static int count_tags(struct buffer_head *bh, int size)
-{
- char * tagp;
- journal_block_tag_t * tag;
- int nr = 0;
-
- tagp = &bh->b_data[sizeof(journal_header_t)];
-
- while ((tagp - bh->b_data + sizeof(journal_block_tag_t)) <= size) {
- tag = (journal_block_tag_t *) tagp;
-
- nr++;
- tagp += sizeof(journal_block_tag_t);
- if (!(tag->t_flags & htonl(JFS_FLAG_SAME_UUID)))
- tagp += 16;
-
- if (tag->t_flags & htonl(JFS_FLAG_LAST_TAG))
- break;
- }
-
- return nr;
-}
-
-
-/* Make sure we wrap around the log correctly! */
-#define wrap(journal, var) \
-do { \
- if (var >= (journal)->j_last) \
- var -= ((journal)->j_last - (journal)->j_first); \
-} while (0)
-
-/**
- * int journal_recover(journal_t *journal) - recovers a on-disk journal
- * @journal: the journal to recover
- *
- * The primary function for recovering the log contents when mounting a
- * journaled device.
- *
- * Recovery is done in three passes. In the first pass, we look for the
- * end of the log. In the second, we assemble the list of revoke
- * blocks. In the third and final pass, we replay any un-revoked blocks
- * in the log.
- */
-int journal_recover(journal_t *journal)
-{
- int err;
- journal_superblock_t * sb;
-
- struct recovery_info info;
-
- memset(&info, 0, sizeof(info));
- sb = journal->j_superblock;
-
- /*
- * The journal superblock's s_start field (the current log head)
- * is always zero if, and only if, the journal was cleanly
- * unmounted.
- */
-
- if (!sb->s_start) {
- jbd_debug(1, "No recovery required, last transaction %d\n",
- ntohl(sb->s_sequence));
- journal->j_transaction_sequence = ntohl(sb->s_sequence) + 1;
- return 0;
- }
-
- err = do_one_pass(journal, &info, PASS_SCAN);
- if (!err)
- err = do_one_pass(journal, &info, PASS_REVOKE);
- if (!err)
- err = do_one_pass(journal, &info, PASS_REPLAY);
-
- jbd_debug(0, "JBD: recovery, exit status %d, "
- "recovered transactions %u to %u\n",
- err, info.start_transaction, info.end_transaction);
- jbd_debug(0, "JBD: Replayed %d and revoked %d/%d blocks\n",
- info.nr_replays, info.nr_revoke_hits, info.nr_revokes);
-
- /* Restart the log at the next transaction ID, thus invalidating
- * any existing commit records in the log. */
- journal->j_transaction_sequence = ++info.end_transaction;
-
- journal_clear_revoke(journal);
- sync_blockdev(journal->j_fs_dev);
- return err;
-}
-
-/**
- * int journal_skip_recovery() - Start journal and wipe exiting records
- * @journal: journal to startup
- *
- * Locate any valid recovery information from the journal and set up the
- * journal structures in memory to ignore it (presumably because the
- * caller has evidence that it is out of date).
- * This function does'nt appear to be exorted..
- *
- * We perform one pass over the journal to allow us to tell the user how
- * much recovery information is being erased, and to let us initialise
- * the journal transaction sequence numbers to the next unused ID.
- */
-int journal_skip_recovery(journal_t *journal)
-{
- int err;
- journal_superblock_t * sb;
-
- struct recovery_info info;
-
- memset (&info, 0, sizeof(info));
- sb = journal->j_superblock;
-
- err = do_one_pass(journal, &info, PASS_SCAN);
-
- if (err) {
- printk(KERN_ERR "JBD: error %d scanning journal\n", err);
- ++journal->j_transaction_sequence;
- } else {
-#ifdef __CONFIG_JBD_DEBUG__E2FS
- int dropped = info.end_transaction - ntohl(sb->s_sequence);
-#endif
- jbd_debug(0,
- "JBD: ignoring %d transaction%s from the journal.\n",
- dropped, (dropped == 1) ? "" : "s");
- journal->j_transaction_sequence = ++info.end_transaction;
- }
-
- journal->j_tail = 0;
- return err;
-}
-
-static int do_one_pass(journal_t *journal,
- struct recovery_info *info, enum passtype pass)
-{
- unsigned int first_commit_ID, next_commit_ID;
- unsigned long next_log_block;
- int err, success = 0;
- journal_superblock_t * sb;
- journal_header_t * tmp;
- struct buffer_head * bh;
- unsigned int sequence;
- int blocktype;
-
- /* Precompute the maximum metadata descriptors in a descriptor block */
- int MAX_BLOCKS_PER_DESC;
- MAX_BLOCKS_PER_DESC = ((journal->j_blocksize-sizeof(journal_header_t))
- / sizeof(journal_block_tag_t));
-
- /*
- * First thing is to establish what we expect to find in the log
- * (in terms of transaction IDs), and where (in terms of log
- * block offsets): query the superblock.
- */
-
- sb = journal->j_superblock;
- next_commit_ID = ntohl(sb->s_sequence);
- next_log_block = ntohl(sb->s_start);
-
- first_commit_ID = next_commit_ID;
- if (pass == PASS_SCAN)
- info->start_transaction = first_commit_ID;
-
- jbd_debug(1, "Starting recovery pass %d\n", pass);
-
- /*
- * Now we walk through the log, transaction by transaction,
- * making sure that each transaction has a commit block in the
- * expected place. Each complete transaction gets replayed back
- * into the main filesystem.
- */
-
- while (1) {
- int flags;
- char * tagp;
- journal_block_tag_t * tag;
- struct buffer_head * obh;
- struct buffer_head * nbh;
-
- /* If we already know where to stop the log traversal,
- * check right now that we haven't gone past the end of
- * the log. */
-
- if (pass != PASS_SCAN)
- if (tid_geq(next_commit_ID, info->end_transaction))
- break;
-
- jbd_debug(2, "Scanning for sequence ID %u at %lu/%lu\n",
- next_commit_ID, next_log_block, journal->j_last);
-
- /* Skip over each chunk of the transaction looking
- * either the next descriptor block or the final commit
- * record. */
-
- jbd_debug(3, "JBD: checking block %ld\n", next_log_block);
- err = jread(&bh, journal, next_log_block);
- if (err)
- goto failed;
-
- next_log_block++;
- wrap(journal, next_log_block);
-
- /* What kind of buffer is it?
- *
- * If it is a descriptor block, check that it has the
- * expected sequence number. Otherwise, we're all done
- * here. */
-
- tmp = (journal_header_t *)bh->b_data;
-
- if (tmp->h_magic != htonl(JFS_MAGIC_NUMBER)) {
- brelse(bh);
- break;
- }
-
- blocktype = ntohl(tmp->h_blocktype);
- sequence = ntohl(tmp->h_sequence);
- jbd_debug(3, "Found magic %d, sequence %d\n",
- blocktype, sequence);
-
- if (sequence != next_commit_ID) {
- brelse(bh);
- break;
- }
-
- /* OK, we have a valid descriptor block which matches
- * all of the sequence number checks. What are we going
- * to do with it? That depends on the pass... */
-
- switch(blocktype) {
- case JFS_DESCRIPTOR_BLOCK:
- /* If it is a valid descriptor block, replay it
- * in pass REPLAY; otherwise, just skip over the
- * blocks it describes. */
- if (pass != PASS_REPLAY) {
- next_log_block +=
- count_tags(bh, journal->j_blocksize);
- wrap(journal, next_log_block);
- brelse(bh);
- continue;
- }
-
- /* A descriptor block: we can now write all of
- * the data blocks. Yay, useful work is finally
- * getting done here! */
-
- tagp = &bh->b_data[sizeof(journal_header_t)];
- while ((tagp - bh->b_data +sizeof(journal_block_tag_t))
- <= journal->j_blocksize) {
- unsigned long io_block;
-
- tag = (journal_block_tag_t *) tagp;
- flags = ntohl(tag->t_flags);
-
- io_block = next_log_block++;
- wrap(journal, next_log_block);
- err = jread(&obh, journal, io_block);
- if (err) {
- /* Recover what we can, but
- * report failure at the end. */
- success = err;
- printk (KERN_ERR
- "JBD: IO error %d recovering "
- "block %ld in log\n",
- err, io_block);
- } else {
- unsigned long blocknr;
-
- J_ASSERT(obh != NULL);
- blocknr = ntohl(tag->t_blocknr);
-
- /* If the block has been
- * revoked, then we're all done
- * here. */
- if (journal_test_revoke
- (journal, blocknr,
- next_commit_ID)) {
- brelse(obh);
- ++info->nr_revoke_hits;
- goto skip_write;
- }
-
- /* Find a buffer for the new
- * data being restored */
- nbh = __getblk(journal->j_fs_dev,
- blocknr,
- journal->j_blocksize);
- if (nbh == NULL) {
- printk(KERN_ERR
- "JBD: Out of memory "
- "during recovery.\n");
- err = -ENOMEM;
- brelse(bh);
- brelse(obh);
- goto failed;
- }
-
- lock_buffer(nbh);
- memcpy(nbh->b_data, obh->b_data,
- journal->j_blocksize);
- if (flags & JFS_FLAG_ESCAPE) {
- *((unsigned int *)bh->b_data) =
- htonl(JFS_MAGIC_NUMBER);
- }
-
- BUFFER_TRACE(nbh, "marking dirty");
- set_buffer_uptodate(nbh);
- mark_buffer_dirty(nbh);
- BUFFER_TRACE(nbh, "marking uptodate");
- ++info->nr_replays;
- /* ll_rw_block(WRITE, 1, &nbh); */
- unlock_buffer(nbh);
- brelse(obh);
- brelse(nbh);
- }
-
- skip_write:
- tagp += sizeof(journal_block_tag_t);
- if (!(flags & JFS_FLAG_SAME_UUID))
- tagp += 16;
-
- if (flags & JFS_FLAG_LAST_TAG)
- break;
- }
-
- brelse(bh);
- continue;
-
- case JFS_COMMIT_BLOCK:
- /* Found an expected commit block: not much to
- * do other than move on to the next sequence
- * number. */
- brelse(bh);
- next_commit_ID++;
- continue;
-
- case JFS_REVOKE_BLOCK:
- /* If we aren't in the REVOKE pass, then we can
- * just skip over this block. */
- if (pass != PASS_REVOKE) {
- brelse(bh);
- continue;
- }
-
- err = scan_revoke_records(journal, bh,
- next_commit_ID, info);
- brelse(bh);
- if (err)
- goto failed;
- continue;
-
- default:
- jbd_debug(3, "Unrecognised magic %d, end of scan.\n",
- blocktype);
- goto done;
- }
- }
-
- done:
- /*
- * We broke out of the log scan loop: either we came to the
- * known end of the log or we found an unexpected block in the
- * log. If the latter happened, then we know that the "current"
- * transaction marks the end of the valid log.
- */
-
- if (pass == PASS_SCAN)
- info->end_transaction = next_commit_ID;
- else {
- /* It's really bad news if different passes end up at
- * different places (but possible due to IO errors). */
- if (info->end_transaction != next_commit_ID) {
- printk (KERN_ERR "JBD: recovery pass %d ended at "
- "transaction %u, expected %u\n",
- pass, next_commit_ID, info->end_transaction);
- if (!success)
- success = -EIO;
- }
- }
-
- return success;
-
- failed:
- return err;
-}
-
-
-/* Scan a revoke record, marking all blocks mentioned as revoked. */
-
-static int scan_revoke_records(journal_t *journal, struct buffer_head *bh,
- tid_t sequence, struct recovery_info *info)
-{
- journal_revoke_header_t *header;
- int offset, max;
-
- header = (journal_revoke_header_t *) bh->b_data;
- offset = sizeof(journal_revoke_header_t);
- max = ntohl(header->r_count);
-
- while (offset < max) {
- unsigned long blocknr;
- int err;
-
- blocknr = ntohl(* ((unsigned int *) (bh->b_data+offset)));
- offset += 4;
- err = journal_set_revoke(journal, blocknr, sequence);
- if (err)
- return err;
- ++info->nr_revokes;
- }
- return 0;
-}
+++ /dev/null
-/*
- * region.c --- code which manages allocations within a region.
- *
- * Copyright (C) 2001 Theodore Ts'o.
- *
- * %Begin-Header%
- * This file may be redistributed under the terms of the GNU Public
- * License.
- * %End-Header%
- */
-
-#if HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-#include <string.h>
-
-#include "e2fsck.h"
-
-struct region_el {
- region_addr_t start;
- region_addr_t end;
- struct region_el *next;
-};
-
-struct region_struct {
- region_addr_t min;
- region_addr_t max;
- struct region_el *allocated;
-};
-
-region_t region_create(region_addr_t min, region_addr_t max)
-{
- region_t region;
-
- region = malloc(sizeof(struct region_struct));
- if (!region)
- return NULL;
- memset(region, 0, sizeof(struct region_struct));
- region->min = min;
- region->max = max;
- return region;
-}
-
-void region_free(region_t region)
-{
- struct region_el *r, *next;
-
- for (r = region->allocated; r; r = next) {
- next = r->next;
- free(r);
- }
- memset(region, 0, sizeof(struct region_struct));
- free(region);
-}
-
-int region_allocate(region_t region, region_addr_t start, int n)
-{
- struct region_el *r, *new_region, *prev, *next;
- region_addr_t end;
-
- end = start+n;
- if ((start < region->min) || (end > region->max))
- return -1;
- if (n == 0)
- return 1;
-
- /*
- * Search through the linked list. If we find that it
- * conflicts witih something that's already allocated, return
- * 1; if we can find an existing region which we can grow, do
- * so. Otherwise, stop when we find the appropriate place
- * insert a new region element into the linked list.
- */
- for (r = region->allocated, prev=NULL; r; prev = r, r = r->next) {
- if (((start >= r->start) && (start < r->end)) ||
- ((end > r->start) && (end <= r->end)) ||
- ((start <= r->start) && (end >= r->end)))
- return 1;
- if (end == r->start) {
- r->start = start;
- return 0;
- }
- if (start == r->end) {
- if ((next = r->next)) {
- if (end > next->start)
- return 1;
- if (end == next->start) {
- r->end = next->end;
- r->next = next->next;
- free(next);
- return 0;
- }
- }
- r->end = end;
- return 0;
- }
- if (start < r->start)
- break;
- }
- /*
- * Insert a new region element structure into the linked list
- */
- new_region = malloc(sizeof(struct region_el));
- if (!new_region)
- return -1;
- new_region->start = start;
- new_region->end = start + n;
- new_region->next = r;
- if (prev)
- prev->next = new_region;
- else
- region->allocated = new_region;
- return 0;
-}
-
-#ifdef TEST_PROGRAM
-#include <stdio.h>
-
-#define BCODE_END 0
-#define BCODE_CREATE 1
-#define BCODE_FREE 2
-#define BCODE_ALLOCATE 3
-#define BCODE_PRINT 4
-
-int bcode_program[] = {
- BCODE_CREATE, 1, 1001,
- BCODE_PRINT,
- BCODE_ALLOCATE, 10, 10,
- BCODE_ALLOCATE, 30, 10,
- BCODE_PRINT,
- BCODE_ALLOCATE, 1, 15,
- BCODE_ALLOCATE, 15, 8,
- BCODE_ALLOCATE, 1, 20,
- BCODE_ALLOCATE, 1, 8,
- BCODE_PRINT,
- BCODE_ALLOCATE, 40, 10,
- BCODE_PRINT,
- BCODE_ALLOCATE, 22, 5,
- BCODE_PRINT,
- BCODE_ALLOCATE, 27, 3,
- BCODE_PRINT,
- BCODE_ALLOCATE, 20, 2,
- BCODE_PRINT,
- BCODE_ALLOCATE, 49, 1,
- BCODE_ALLOCATE, 50, 5,
- BCODE_ALLOCATE, 9, 2,
- BCODE_ALLOCATE, 9, 1,
- BCODE_PRINT,
- BCODE_FREE,
- BCODE_END
-};
-
-void region_print(region_t region, FILE *f)
-{
- struct region_el *r;
- int i = 0;
-
- fprintf(f, "Printing region (min=%d. max=%d)\n\t", region->min,
- region->max);
- for (r = region->allocated; r; r = r->next) {
- fprintf(f, "(%d, %d) ", r->start, r->end);
- if (++i >= 8)
- fprintf(f, "\n\t");
- }
- fprintf(f, "\n");
-}
-
-int main(int argc, char **argv)
-{
- region_t r;
- int pc = 0, ret;
- region_addr_t start, end, len;
-
-
- while (1) {
- switch (bcode_program[pc++]) {
- case BCODE_END:
- exit(0);
- case BCODE_CREATE:
- start = bcode_program[pc++];
- end = bcode_program[pc++];
- printf("Creating region with args(%d, %d)\n",
- start, end);
- r = region_create(start, end);
- if (!r) {
- fprintf(stderr, "Couldn't create region.\n");
- exit(1);
- }
- break;
- case BCODE_ALLOCATE:
- start = bcode_program[pc++];
- end = bcode_program[pc++];
- ret = region_allocate(r, start, end);
- printf("Region_allocate(%d, %d) returns %d\n",
- start, end, ret);
- break;
- case BCODE_PRINT:
- region_print(r, stdout);
- break;
- }
- }
-}
-
-#endif /* TEST_PROGRAM */
+++ /dev/null
-/*
- * rehash.c --- rebuild hash tree directories
- *
- * Copyright (C) 2002 Theodore Ts'o
- *
- * %Begin-Header%
- * This file may be redistributed under the terms of the GNU Public
- * License.
- * %End-Header%
- *
- * This algorithm is designed for simplicity of implementation and to
- * pack the directory as much as possible. It however requires twice
- * as much memory as the size of the directory. The maximum size
- * directory supported using a 4k blocksize is roughly a gigabyte, and
- * so there may very well be problems with machines that don't have
- * virtual memory, and obscenely large directories.
- *
- * An alternate algorithm which is much more disk intensive could be
- * written, and probably will need to be written in the future. The
- * design goals of such an algorithm are: (a) use (roughly) constant
- * amounts of memory, no matter how large the directory, (b) the
- * directory must be safe at all times, even if e2fsck is interrupted
- * in the middle, (c) we must use minimal amounts of extra disk
- * blocks. This pretty much requires an incremental approach, where
- * we are reading from one part of the directory, and inserting into
- * the front half. So the algorithm will have to keep track of a
- * moving block boundary between the new tree and the old tree, and
- * files will need to be moved from the old directory and inserted
- * into the new tree. If the new directory requires space which isn't
- * yet available, blocks from the beginning part of the old directory
- * may need to be moved to the end of the directory to make room for
- * the new tree:
- *
- * --------------------------------------------------------
- * | new tree | | old tree |
- * --------------------------------------------------------
- * ^ ptr ^ptr
- * tail new head old
- *
- * This is going to be a pain in the tuckus to implement, and will
- * require a lot more disk accesses. So I'm going to skip it for now;
- * it's only really going to be an issue for really, really big
- * filesystems (when we reach the level of tens of millions of files
- * in a single directory). It will probably be easier to simply
- * require that e2fsck use VM first.
- */
-
-#include <string.h>
-#include <ctype.h>
-#include <errno.h>
-#include "e2fsck.h"
-#include "problem.h"
-
-struct fill_dir_struct {
- char *buf;
- struct ext2_inode *inode;
- int err;
- e2fsck_t ctx;
- struct hash_entry *harray;
- int max_array, num_array;
- int dir_size;
- int compress;
- ino_t parent;
-};
-
-struct hash_entry {
- ext2_dirhash_t hash;
- ext2_dirhash_t minor_hash;
- struct ext2_dir_entry *dir;
-};
-
-struct out_dir {
- int num;
- int max;
- char *buf;
- ext2_dirhash_t *hashes;
-};
-
-static int fill_dir_block(ext2_filsys fs,
- blk_t *block_nr,
- e2_blkcnt_t blockcnt,
- blk_t ref_block EXT2FS_ATTR((unused)),
- int ref_offset EXT2FS_ATTR((unused)),
- void *priv_data)
-{
- struct fill_dir_struct *fd = (struct fill_dir_struct *) priv_data;
- struct hash_entry *new_array, *ent;
- struct ext2_dir_entry *dirent;
- char *dir;
- unsigned int offset, dir_offset;
-
- if (blockcnt < 0)
- return 0;
-
- offset = blockcnt * fs->blocksize;
- if (offset + fs->blocksize > fd->inode->i_size) {
- fd->err = EXT2_ET_DIR_CORRUPTED;
- return BLOCK_ABORT;
- }
- dir = (fd->buf+offset);
- if (HOLE_BLKADDR(*block_nr)) {
- memset(dir, 0, fs->blocksize);
- dirent = (struct ext2_dir_entry *) dir;
- dirent->rec_len = fs->blocksize;
- } else {
- fd->err = ext2fs_read_dir_block(fs, *block_nr, dir);
- if (fd->err)
- return BLOCK_ABORT;
- }
- /* While the directory block is "hot", index it. */
- dir_offset = 0;
- while (dir_offset < fs->blocksize) {
- dirent = (struct ext2_dir_entry *) (dir + dir_offset);
- if (((dir_offset + dirent->rec_len) > fs->blocksize) ||
- (dirent->rec_len < 8) ||
- ((dirent->rec_len % 4) != 0) ||
- (((dirent->name_len & 0xFF)+8) > dirent->rec_len)) {
- fd->err = EXT2_ET_DIR_CORRUPTED;
- return BLOCK_ABORT;
- }
- dir_offset += dirent->rec_len;
- if (dirent->inode == 0)
- continue;
- if (!fd->compress && ((dirent->name_len&0xFF) == 1) &&
- (dirent->name[0] == '.'))
- continue;
- if (!fd->compress && ((dirent->name_len&0xFF) == 2) &&
- (dirent->name[0] == '.') && (dirent->name[1] == '.')) {
- fd->parent = dirent->inode;
- continue;
- }
- if (fd->num_array >= fd->max_array) {
- new_array = realloc(fd->harray,
- sizeof(struct hash_entry) * (fd->max_array+500));
- if (!new_array) {
- fd->err = ENOMEM;
- return BLOCK_ABORT;
- }
- fd->harray = new_array;
- fd->max_array += 500;
- }
- ent = fd->harray + fd->num_array++;
- ent->dir = dirent;
- fd->dir_size += EXT2_DIR_REC_LEN(dirent->name_len & 0xFF);
- if (fd->compress)
- ent->hash = ent->minor_hash = 0;
- else {
- fd->err = ext2fs_dirhash(fs->super->s_def_hash_version,
- dirent->name,
- dirent->name_len & 0xFF,
- fs->super->s_hash_seed,
- &ent->hash, &ent->minor_hash);
- if (fd->err)
- return BLOCK_ABORT;
- }
- }
-
- return 0;
-}
-
-/* Used for sorting the hash entry */
-static EXT2_QSORT_TYPE name_cmp(const void *a, const void *b)
-{
- const struct hash_entry *he_a = (const struct hash_entry *) a;
- const struct hash_entry *he_b = (const struct hash_entry *) b;
- int ret;
- int min_len;
-
- min_len = he_a->dir->name_len;
- if (min_len > he_b->dir->name_len)
- min_len = he_b->dir->name_len;
-
- ret = strncmp(he_a->dir->name, he_b->dir->name, min_len);
- if (ret == 0) {
- if (he_a->dir->name_len > he_b->dir->name_len)
- ret = 1;
- else if (he_a->dir->name_len < he_b->dir->name_len)
- ret = -1;
- else
- ret = he_b->dir->inode - he_a->dir->inode;
- }
- return ret;
-}
-
-/* Used for sorting the hash entry */
-static EXT2_QSORT_TYPE hash_cmp(const void *a, const void *b)
-{
- const struct hash_entry *he_a = (const struct hash_entry *) a;
- const struct hash_entry *he_b = (const struct hash_entry *) b;
- int ret;
-
- if (he_a->hash > he_b->hash)
- ret = 1;
- else if (he_a->hash < he_b->hash)
- ret = -1;
- else {
- if (he_a->minor_hash > he_b->minor_hash)
- ret = 1;
- else if (he_a->minor_hash < he_b->minor_hash)
- ret = -1;
- else
- ret = name_cmp(a, b);
- }
- return ret;
-}
-
-static errcode_t alloc_size_dir(ext2_filsys fs, struct out_dir *outdir,
- int blocks)
-{
- void *new_mem;
-
- if (outdir->max) {
- new_mem = realloc(outdir->buf, blocks * fs->blocksize);
- if (!new_mem)
- return ENOMEM;
- outdir->buf = new_mem;
- new_mem = realloc(outdir->hashes,
- blocks * sizeof(ext2_dirhash_t));
- if (!new_mem)
- return ENOMEM;
- outdir->hashes = new_mem;
- } else {
- outdir->buf = malloc(blocks * fs->blocksize);
- outdir->hashes = malloc(blocks * sizeof(ext2_dirhash_t));
- outdir->num = 0;
- }
- outdir->max = blocks;
- return 0;
-}
-
-static void free_out_dir(struct out_dir *outdir)
-{
- if (outdir->buf)
- free(outdir->buf);
- if (outdir->hashes)
- free(outdir->hashes);
- outdir->max = 0;
- outdir->num =0;
-}
-
-static errcode_t get_next_block(ext2_filsys fs, struct out_dir *outdir,
- char ** ret)
-{
- errcode_t retval;
-
- if (outdir->num >= outdir->max) {
- retval = alloc_size_dir(fs, outdir, outdir->max + 50);
- if (retval)
- return retval;
- }
- *ret = outdir->buf + (outdir->num++ * fs->blocksize);
- memset(*ret, 0, fs->blocksize);
- return 0;
-}
-
-/*
- * This function is used to make a unique filename. We do this by
- * appending ~0, and then incrementing the number. However, we cannot
- * expand the length of the filename beyond the padding available in
- * the directory entry.
- */
-static void mutate_name(char *str, __u16 *len)
-{
- int i;
- __u16 l = *len & 0xFF, h = *len & 0xff00;
-
- /*
- * First check to see if it looks the name has been mutated
- * already
- */
- for (i = l-1; i > 0; i--) {
- if (!isdigit(str[i]))
- break;
- }
- if ((i == l-1) || (str[i] != '~')) {
- if (((l-1) & 3) < 2)
- l += 2;
- else
- l = (l+3) & ~3;
- str[l-2] = '~';
- str[l-1] = '0';
- *len = l | h;
- return;
- }
- for (i = l-1; i >= 0; i--) {
- if (isdigit(str[i])) {
- if (str[i] == '9')
- str[i] = '0';
- else {
- str[i]++;
- return;
- }
- continue;
- }
- if (i == 1) {
- if (str[0] == 'z')
- str[0] = 'A';
- else if (str[0] == 'Z') {
- str[0] = '~';
- str[1] = '0';
- } else
- str[0]++;
- } else if (i > 0) {
- str[i] = '1';
- str[i-1] = '~';
- } else {
- if (str[0] == '~')
- str[0] = 'a';
- else
- str[0]++;
- }
- break;
- }
-}
-
-static int duplicate_search_and_fix(e2fsck_t ctx, ext2_filsys fs,
- ext2_ino_t ino,
- struct fill_dir_struct *fd)
-{
- struct problem_context pctx;
- struct hash_entry *ent, *prev;
- int i, j;
- int fixed = 0;
- char new_name[256];
- __u16 new_len;
-
- clear_problem_context(&pctx);
- pctx.ino = ino;
-
- for (i=1; i < fd->num_array; i++) {
- ent = fd->harray + i;
- prev = ent - 1;
- if (!ent->dir->inode ||
- ((ent->dir->name_len & 0xFF) !=
- (prev->dir->name_len & 0xFF)) ||
- (strncmp(ent->dir->name, prev->dir->name,
- ent->dir->name_len & 0xFF)))
- continue;
- pctx.dirent = ent->dir;
- if ((ent->dir->inode == prev->dir->inode) &&
- fix_problem(ctx, PR_2_DUPLICATE_DIRENT, &pctx)) {
- e2fsck_adjust_inode_count(ctx, ent->dir->inode, -1);
- ent->dir->inode = 0;
- fixed++;
- continue;
- }
- memcpy(new_name, ent->dir->name, ent->dir->name_len & 0xFF);
- new_len = ent->dir->name_len;
- mutate_name(new_name, &new_len);
- for (j=0; j < fd->num_array; j++) {
- if ((i==j) ||
- ((ent->dir->name_len & 0xFF) !=
- (fd->harray[j].dir->name_len & 0xFF)) ||
- (strncmp(new_name, fd->harray[j].dir->name,
- new_len & 0xFF)))
- continue;
- mutate_name(new_name, &new_len);
-
- j = -1;
- }
- new_name[new_len & 0xFF] = 0;
- pctx.str = new_name;
- if (fix_problem(ctx, PR_2_NON_UNIQUE_FILE, &pctx)) {
- memcpy(ent->dir->name, new_name, new_len & 0xFF);
- ent->dir->name_len = new_len;
- ext2fs_dirhash(fs->super->s_def_hash_version,
- ent->dir->name,
- ent->dir->name_len & 0xFF,
- fs->super->s_hash_seed,
- &ent->hash, &ent->minor_hash);
- fixed++;
- }
- }
- return fixed;
-}
-
-
-static errcode_t copy_dir_entries(ext2_filsys fs,
- struct fill_dir_struct *fd,
- struct out_dir *outdir)
-{
- errcode_t retval;
- char *block_start;
- struct hash_entry *ent;
- struct ext2_dir_entry *dirent;
- int i, rec_len, left;
- ext2_dirhash_t prev_hash;
- int offset;
-
- outdir->max = 0;
- retval = alloc_size_dir(fs, outdir,
- (fd->dir_size / fs->blocksize) + 2);
- if (retval)
- return retval;
- outdir->num = fd->compress ? 0 : 1;
- offset = 0;
- outdir->hashes[0] = 0;
- prev_hash = 1;
- if ((retval = get_next_block(fs, outdir, &block_start)))
- return retval;
- dirent = (struct ext2_dir_entry *) block_start;
- left = fs->blocksize;
- for (i=0; i < fd->num_array; i++) {
- ent = fd->harray + i;
- if (ent->dir->inode == 0)
- continue;
- rec_len = EXT2_DIR_REC_LEN(ent->dir->name_len & 0xFF);
- if (rec_len > left) {
- if (left)
- dirent->rec_len += left;
- if ((retval = get_next_block(fs, outdir,
- &block_start)))
- return retval;
- offset = 0;
- }
- left = fs->blocksize - offset;
- dirent = (struct ext2_dir_entry *) (block_start + offset);
- if (offset == 0) {
- if (ent->hash == prev_hash)
- outdir->hashes[outdir->num-1] = ent->hash | 1;
- else
- outdir->hashes[outdir->num-1] = ent->hash;
- }
- dirent->inode = ent->dir->inode;
- dirent->name_len = ent->dir->name_len;
- dirent->rec_len = rec_len;
- memcpy(dirent->name, ent->dir->name, dirent->name_len & 0xFF);
- offset += rec_len;
- left -= rec_len;
- if (left < 12) {
- dirent->rec_len += left;
- offset += left;
- left = 0;
- }
- prev_hash = ent->hash;
- }
- if (left)
- dirent->rec_len += left;
-
- return 0;
-}
-
-
-static struct ext2_dx_root_info *set_root_node(ext2_filsys fs, char *buf,
- ext2_ino_t ino, ext2_ino_t parent)
-{
- struct ext2_dir_entry *dir;
- struct ext2_dx_root_info *root;
- struct ext2_dx_countlimit *limits;
- int filetype = 0;
-
- if (fs->super->s_feature_incompat & EXT2_FEATURE_INCOMPAT_FILETYPE)
- filetype = EXT2_FT_DIR << 8;
-
- memset(buf, 0, fs->blocksize);
- dir = (struct ext2_dir_entry *) buf;
- dir->inode = ino;
- dir->name[0] = '.';
- dir->name_len = 1 | filetype;
- dir->rec_len = 12;
- dir = (struct ext2_dir_entry *) (buf + 12);
- dir->inode = parent;
- dir->name[0] = '.';
- dir->name[1] = '.';
- dir->name_len = 2 | filetype;
- dir->rec_len = fs->blocksize - 12;
-
- root = (struct ext2_dx_root_info *) (buf+24);
- root->reserved_zero = 0;
- root->hash_version = fs->super->s_def_hash_version;
- root->info_length = 8;
- root->indirect_levels = 0;
- root->unused_flags = 0;
-
- limits = (struct ext2_dx_countlimit *) (buf+32);
- limits->limit = (fs->blocksize - 32) / sizeof(struct ext2_dx_entry);
- limits->count = 0;
-
- return root;
-}
-
-
-static struct ext2_dx_entry *set_int_node(ext2_filsys fs, char *buf)
-{
- struct ext2_dir_entry *dir;
- struct ext2_dx_countlimit *limits;
-
- memset(buf, 0, fs->blocksize);
- dir = (struct ext2_dir_entry *) buf;
- dir->inode = 0;
- dir->rec_len = fs->blocksize;
-
- limits = (struct ext2_dx_countlimit *) (buf+8);
- limits->limit = (fs->blocksize - 8) / sizeof(struct ext2_dx_entry);
- limits->count = 0;
-
- return (struct ext2_dx_entry *) limits;
-}
-
-/*
- * This function takes the leaf nodes which have been written in
- * outdir, and populates the root node and any necessary interior nodes.
- */
-static errcode_t calculate_tree(ext2_filsys fs,
- struct out_dir *outdir,
- ext2_ino_t ino,
- ext2_ino_t parent)
-{
- struct ext2_dx_root_info *root_info;
- struct ext2_dx_entry *root, *dx_ent = 0;
- struct ext2_dx_countlimit *root_limit, *limit;
- errcode_t retval;
- char * block_start;
- int i, c1, c2, nblks;
- int limit_offset, root_offset;
-
- root_info = set_root_node(fs, outdir->buf, ino, parent);
- root_offset = limit_offset = ((char *) root_info - outdir->buf) +
- root_info->info_length;
- root_limit = (struct ext2_dx_countlimit *) (outdir->buf + limit_offset);
- c1 = root_limit->limit;
- nblks = outdir->num;
-
- /* Write out the pointer blocks */
- if (nblks-1 <= c1) {
- /* Just write out the root block, and we're done */
- root = (struct ext2_dx_entry *) (outdir->buf + root_offset);
- for (i=1; i < nblks; i++) {
- root->block = ext2fs_cpu_to_le32(i);
- if (i != 1)
- root->hash =
- ext2fs_cpu_to_le32(outdir->hashes[i]);
- root++;
- c1--;
- }
- } else {
- c2 = 0;
- limit = 0;
- root_info->indirect_levels = 1;
- for (i=1; i < nblks; i++) {
- if (c1 == 0)
- return ENOSPC;
- if (c2 == 0) {
- if (limit)
- limit->limit = limit->count =
- ext2fs_cpu_to_le16(limit->limit);
- root = (struct ext2_dx_entry *)
- (outdir->buf + root_offset);
- root->block = ext2fs_cpu_to_le32(outdir->num);
- if (i != 1)
- root->hash =
- ext2fs_cpu_to_le32(outdir->hashes[i]);
- if ((retval = get_next_block(fs, outdir,
- &block_start)))
- return retval;
- dx_ent = set_int_node(fs, block_start);
- limit = (struct ext2_dx_countlimit *) dx_ent;
- c2 = limit->limit;
- root_offset += sizeof(struct ext2_dx_entry);
- c1--;
- }
- dx_ent->block = ext2fs_cpu_to_le32(i);
- if (c2 != limit->limit)
- dx_ent->hash =
- ext2fs_cpu_to_le32(outdir->hashes[i]);
- dx_ent++;
- c2--;
- }
- limit->count = ext2fs_cpu_to_le16(limit->limit - c2);
- limit->limit = ext2fs_cpu_to_le16(limit->limit);
- }
- root_limit = (struct ext2_dx_countlimit *) (outdir->buf + limit_offset);
- root_limit->count = ext2fs_cpu_to_le16(root_limit->limit - c1);
- root_limit->limit = ext2fs_cpu_to_le16(root_limit->limit);
-
- return 0;
-}
-
-struct write_dir_struct {
- struct out_dir *outdir;
- errcode_t err;
- e2fsck_t ctx;
- int cleared;
-};
-
-/*
- * Helper function which writes out a directory block.
- */
-static int write_dir_block(ext2_filsys fs,
- blk_t *block_nr,
- e2_blkcnt_t blockcnt,
- blk_t ref_block EXT2FS_ATTR((unused)),
- int ref_offset EXT2FS_ATTR((unused)),
- void *priv_data)
-{
- struct write_dir_struct *wd = (struct write_dir_struct *) priv_data;
- blk_t blk;
- char *dir;
-
- if (*block_nr == 0)
- return 0;
- if (blockcnt >= wd->outdir->num) {
- e2fsck_read_bitmaps(wd->ctx);
- blk = *block_nr;
- ext2fs_unmark_block_bitmap(wd->ctx->block_found_map, blk);
- ext2fs_block_alloc_stats(fs, blk, -1);
- *block_nr = 0;
- wd->cleared++;
- return BLOCK_CHANGED;
- }
- if (blockcnt < 0)
- return 0;
-
- dir = wd->outdir->buf + (blockcnt * fs->blocksize);
- wd->err = ext2fs_write_dir_block(fs, *block_nr, dir);
- if (wd->err)
- return BLOCK_ABORT;
- return 0;
-}
-
-static errcode_t write_directory(e2fsck_t ctx, ext2_filsys fs,
- struct out_dir *outdir,
- ext2_ino_t ino, int compress)
-{
- struct write_dir_struct wd;
- errcode_t retval;
- struct ext2_inode inode;
-
- retval = e2fsck_expand_directory(ctx, ino, -1, outdir->num);
- if (retval)
- return retval;
-
- wd.outdir = outdir;
- wd.err = 0;
- wd.ctx = ctx;
- wd.cleared = 0;
-
- retval = ext2fs_block_iterate2(fs, ino, 0, 0,
- write_dir_block, &wd);
- if (retval)
- return retval;
- if (wd.err)
- return wd.err;
-
- e2fsck_read_inode(ctx, ino, &inode, "rehash_dir");
- if (compress)
- inode.i_flags &= ~EXT2_INDEX_FL;
- else
- inode.i_flags |= EXT2_INDEX_FL;
- inode.i_size = outdir->num * fs->blocksize;
- inode.i_blocks -= (fs->blocksize / 512) * wd.cleared;
- e2fsck_write_inode(ctx, ino, &inode, "rehash_dir");
-
- return 0;
-}
-
-errcode_t e2fsck_rehash_dir(e2fsck_t ctx, ext2_ino_t ino)
-{
- ext2_filsys fs = ctx->fs;
- errcode_t retval;
- struct ext2_inode inode;
- char *dir_buf = 0;
- struct fill_dir_struct fd;
- struct out_dir outdir;
-
- outdir.max = outdir.num = 0;
- outdir.buf = 0;
- outdir.hashes = 0;
- e2fsck_read_inode(ctx, ino, &inode, "rehash_dir");
-
- retval = ENOMEM;
- fd.harray = 0;
- dir_buf = malloc(inode.i_size);
- if (!dir_buf)
- goto errout;
-
- fd.max_array = inode.i_size / 32;
- fd.num_array = 0;
- fd.harray = malloc(fd.max_array * sizeof(struct hash_entry));
- if (!fd.harray)
- goto errout;
-
- fd.ctx = ctx;
- fd.buf = dir_buf;
- fd.inode = &inode;
- fd.err = 0;
- fd.dir_size = 0;
- fd.compress = 0;
- if (!(fs->super->s_feature_compat & EXT2_FEATURE_COMPAT_DIR_INDEX) ||
- (inode.i_size / fs->blocksize) < 2)
- fd.compress = 1;
- fd.parent = 0;
-
- /* Read in the entire directory into memory */
- retval = ext2fs_block_iterate2(fs, ino, 0, 0,
- fill_dir_block, &fd);
- if (fd.err) {
- retval = fd.err;
- goto errout;
- }
-
-#if 0
- printf("%d entries (%d bytes) found in inode %d\n",
- fd.num_array, fd.dir_size, ino);
-#endif
-
- /* Sort the list */
-resort:
- if (fd.compress)
- qsort(fd.harray+2, fd.num_array-2,
- sizeof(struct hash_entry), name_cmp);
- else
- qsort(fd.harray, fd.num_array,
- sizeof(struct hash_entry), hash_cmp);
-
- /*
- * Look for duplicates
- */
- if (duplicate_search_and_fix(ctx, fs, ino, &fd))
- goto resort;
-
- if (ctx->options & E2F_OPT_NO) {
- retval = 0;
- goto errout;
- }
-
- /*
- * Copy the directory entries. In a htree directory these
- * will become the leaf nodes.
- */
- retval = copy_dir_entries(fs, &fd, &outdir);
- if (retval)
- goto errout;
-
- free(dir_buf); dir_buf = 0;
-
- if (!fd.compress) {
- /* Calculate the interior nodes */
- retval = calculate_tree(fs, &outdir, ino, fd.parent);
- if (retval)
- goto errout;
- }
-
- retval = write_directory(ctx, fs, &outdir, ino, fd.compress);
- if (retval)
- goto errout;
-
-errout:
- if (dir_buf)
- free(dir_buf);
- if (fd.harray)
- free(fd.harray);
-
- free_out_dir(&outdir);
- return retval;
-}
-
-void e2fsck_rehash_directories(e2fsck_t ctx)
-{
- struct problem_context pctx;
-#ifdef RESOURCE_TRACK
- struct resource_track rtrack;
-#endif
- struct dir_info *dir;
- ext2_u32_iterate iter;
- ext2_ino_t ino;
- errcode_t retval;
- int i, cur, max, all_dirs, dir_index, first = 1;
-
-#ifdef RESOURCE_TRACK
- init_resource_track(&rtrack);
-#endif
-
- all_dirs = ctx->options & E2F_OPT_COMPRESS_DIRS;
-
- if (!ctx->dirs_to_hash && !all_dirs)
- return;
-
- e2fsck_get_lost_and_found(ctx, 0);
-
- clear_problem_context(&pctx);
-
- dir_index = ctx->fs->super->s_feature_compat & EXT2_FEATURE_COMPAT_DIR_INDEX;
- cur = 0;
- if (all_dirs) {
- i = 0;
- max = e2fsck_get_num_dirinfo(ctx);
- } else {
- retval = ext2fs_u32_list_iterate_begin(ctx->dirs_to_hash,
- &iter);
- if (retval) {
- pctx.errcode = retval;
- fix_problem(ctx, PR_3A_OPTIMIZE_ITER, &pctx);
- return;
- }
- max = ext2fs_u32_list_count(ctx->dirs_to_hash);
- }
- while (1) {
- if (all_dirs) {
- if ((dir = e2fsck_dir_info_iter(ctx, &i)) == 0)
- break;
- ino = dir->ino;
- } else {
- if (!ext2fs_u32_list_iterate(iter, &ino))
- break;
- }
- if (ino == ctx->lost_and_found)
- continue;
- pctx.dir = ino;
- if (first) {
- fix_problem(ctx, PR_3A_PASS_HEADER, &pctx);
- first = 0;
- }
-#if 0
- fix_problem(ctx, PR_3A_OPTIMIZE_DIR, &pctx);
-#endif
- pctx.errcode = e2fsck_rehash_dir(ctx, ino);
- if (pctx.errcode) {
- end_problem_latch(ctx, PR_LATCH_OPTIMIZE_DIR);
- fix_problem(ctx, PR_3A_OPTIMIZE_DIR_ERR, &pctx);
- }
- if (ctx->progress && !ctx->progress_fd)
- e2fsck_simple_progress(ctx, "Rebuilding directory",
- 100.0 * (float) (++cur) / (float) max, ino);
- }
- end_problem_latch(ctx, PR_LATCH_OPTIMIZE_DIR);
- if (!all_dirs)
- ext2fs_u32_list_iterate_end(iter);
-
- if (ctx->dirs_to_hash)
- ext2fs_u32_list_free(ctx->dirs_to_hash);
- ctx->dirs_to_hash = 0;
-
-#ifdef RESOURCE_TRACK
- if (ctx->options & E2F_OPT_TIME2) {
- e2fsck_clear_progbar(ctx);
- print_resource_track("Pass 3A", &rtrack);
- }
-#endif
-}
+++ /dev/null
-/*
- * linux/fs/revoke.c
- *
- * Written by Stephen C. Tweedie <sct@redhat.com>, 2000
- *
- * Copyright 2000 Red Hat corp --- All Rights Reserved
- *
- * This file is part of the Linux kernel and is made available under
- * the terms of the GNU General Public License, version 2, or at your
- * option, any later version, incorporated herein by reference.
- *
- * Journal revoke routines for the generic filesystem journaling code;
- * part of the ext2fs journaling system.
- *
- * Revoke is the mechanism used to prevent old log records for deleted
- * metadata from being replayed on top of newer data using the same
- * blocks. The revoke mechanism is used in two separate places:
- *
- * + Commit: during commit we write the entire list of the current
- * transaction's revoked blocks to the journal
- *
- * + Recovery: during recovery we record the transaction ID of all
- * revoked blocks. If there are multiple revoke records in the log
- * for a single block, only the last one counts, and if there is a log
- * entry for a block beyond the last revoke, then that log entry still
- * gets replayed.
- *
- * We can get interactions between revokes and new log data within a
- * single transaction:
- *
- * Block is revoked and then journaled:
- * The desired end result is the journaling of the new block, so we
- * cancel the revoke before the transaction commits.
- *
- * Block is journaled and then revoked:
- * The revoke must take precedence over the write of the block, so we
- * need either to cancel the journal entry or to write the revoke
- * later in the log than the log block. In this case, we choose the
- * latter: journaling a block cancels any revoke record for that block
- * in the current transaction, so any revoke for that block in the
- * transaction must have happened after the block was journaled and so
- * the revoke must take precedence.
- *
- * Block is revoked and then written as data:
- * The data write is allowed to succeed, but the revoke is _not_
- * cancelled. We still need to prevent old log records from
- * overwriting the new data. We don't even need to clear the revoke
- * bit here.
- *
- * Revoke information on buffers is a tri-state value:
- *
- * RevokeValid clear: no cached revoke status, need to look it up
- * RevokeValid set, Revoked clear:
- * buffer has not been revoked, and cancel_revoke
- * need do nothing.
- * RevokeValid set, Revoked set:
- * buffer has been revoked.
- */
-
-#ifndef __KERNEL__
-#include "jfs_user.h"
-#else
-#include <linux/sched.h>
-#include <linux/fs.h>
-#include <linux/jbd.h>
-#include <linux/errno.h>
-#include <linux/slab.h>
-#include <linux/locks.h>
-#include <linux/list.h>
-#include <linux/smp_lock.h>
-#include <linux/init.h>
-#endif
-
-static kmem_cache_t *revoke_record_cache;
-static kmem_cache_t *revoke_table_cache;
-
-/* Each revoke record represents one single revoked block. During
- journal replay, this involves recording the transaction ID of the
- last transaction to revoke this block. */
-
-struct jbd_revoke_record_s
-{
- struct list_head hash;
- tid_t sequence; /* Used for recovery only */
- unsigned long blocknr;
-};
-
-
-/* The revoke table is just a simple hash table of revoke records. */
-struct jbd_revoke_table_s
-{
- /* It is conceivable that we might want a larger hash table
- * for recovery. Must be a power of two. */
- int hash_size;
- int hash_shift;
- struct list_head *hash_table;
-};
-
-
-#ifdef __KERNEL__
-static void write_one_revoke_record(journal_t *, transaction_t *,
- struct journal_head **, int *,
- struct jbd_revoke_record_s *);
-static void flush_descriptor(journal_t *, struct journal_head *, int);
-#endif
-
-/* Utility functions to maintain the revoke table */
-
-/* Borrowed from buffer.c: this is a tried and tested block hash function */
-static inline int hash(journal_t *journal, unsigned long block)
-{
- struct jbd_revoke_table_s *table = journal->j_revoke;
- int hash_shift = table->hash_shift;
-
- return ((block << (hash_shift - 6)) ^
- (block >> 13) ^
- (block << (hash_shift - 12))) & (table->hash_size - 1);
-}
-
-static int insert_revoke_hash(journal_t *journal, unsigned long blocknr,
- tid_t seq)
-{
- struct list_head *hash_list;
- struct jbd_revoke_record_s *record;
-
-#ifdef __KERNEL__
-repeat:
-#endif
- record = kmem_cache_alloc(revoke_record_cache, GFP_NOFS);
- if (!record)
- goto oom;
-
- record->sequence = seq;
- record->blocknr = blocknr;
- hash_list = &journal->j_revoke->hash_table[hash(journal, blocknr)];
- list_add(&record->hash, hash_list);
- return 0;
-
-oom:
-#ifdef __KERNEL__
- if (!journal_oom_retry)
- return -ENOMEM;
- jbd_debug(1, "ENOMEM in " __FUNCTION__ ", retrying.\n");
- current->policy |= SCHED_YIELD;
- schedule();
- goto repeat;
-#else
- return -ENOMEM;
-#endif
-}
-
-/* Find a revoke record in the journal's hash table. */
-
-static struct jbd_revoke_record_s *find_revoke_record(journal_t *journal,
- unsigned long blocknr)
-{
- struct list_head *hash_list;
- struct jbd_revoke_record_s *record;
-
- hash_list = &journal->j_revoke->hash_table[hash(journal, blocknr)];
-
- record = (struct jbd_revoke_record_s *) hash_list->next;
- while (&(record->hash) != hash_list) {
- if (record->blocknr == blocknr)
- return record;
- record = (struct jbd_revoke_record_s *) record->hash.next;
- }
- return NULL;
-}
-
-int __init journal_init_revoke_caches(void)
-{
- revoke_record_cache = kmem_cache_create("revoke_record",
- sizeof(struct jbd_revoke_record_s),
- 0, SLAB_HWCACHE_ALIGN, NULL, NULL);
- if (revoke_record_cache == 0)
- return -ENOMEM;
-
- revoke_table_cache = kmem_cache_create("revoke_table",
- sizeof(struct jbd_revoke_table_s),
- 0, 0, NULL, NULL);
- if (revoke_table_cache == 0) {
- kmem_cache_destroy(revoke_record_cache);
- revoke_record_cache = NULL;
- return -ENOMEM;
- }
- return 0;
-}
-
-void journal_destroy_revoke_caches(void)
-{
- kmem_cache_destroy(revoke_record_cache);
- revoke_record_cache = 0;
- kmem_cache_destroy(revoke_table_cache);
- revoke_table_cache = 0;
-}
-
-/* Initialise the revoke table for a given journal to a given size. */
-
-int journal_init_revoke(journal_t *journal, int hash_size)
-{
- int shift, tmp;
-
- J_ASSERT (journal->j_revoke == NULL);
-
- journal->j_revoke = kmem_cache_alloc(revoke_table_cache, GFP_KERNEL);
- if (!journal->j_revoke)
- return -ENOMEM;
-
- /* Check that the hash_size is a power of two */
- J_ASSERT ((hash_size & (hash_size-1)) == 0);
-
- journal->j_revoke->hash_size = hash_size;
-
- shift = 0;
- tmp = hash_size;
- while((tmp >>= 1UL) != 0UL)
- shift++;
- journal->j_revoke->hash_shift = shift;
-
- journal->j_revoke->hash_table =
- kmalloc(hash_size * sizeof(struct list_head), GFP_KERNEL);
- if (!journal->j_revoke->hash_table) {
- kmem_cache_free(revoke_table_cache, journal->j_revoke);
- journal->j_revoke = NULL;
- return -ENOMEM;
- }
-
- for (tmp = 0; tmp < hash_size; tmp++)
- INIT_LIST_HEAD(&journal->j_revoke->hash_table[tmp]);
-
- return 0;
-}
-
-/* Destoy a journal's revoke table. The table must already be empty! */
-
-void journal_destroy_revoke(journal_t *journal)
-{
- struct jbd_revoke_table_s *table;
- struct list_head *hash_list;
- int i;
-
- table = journal->j_revoke;
- if (!table)
- return;
-
- for (i=0; i<table->hash_size; i++) {
- hash_list = &table->hash_table[i];
- J_ASSERT (list_empty(hash_list));
- }
-
- kfree(table->hash_table);
- kmem_cache_free(revoke_table_cache, table);
- journal->j_revoke = NULL;
-}
-
-
-#ifdef __KERNEL__
-
-/*
- * journal_revoke: revoke a given buffer_head from the journal. This
- * prevents the block from being replayed during recovery if we take a
- * crash after this current transaction commits. Any subsequent
- * metadata writes of the buffer in this transaction cancel the
- * revoke.
- *
- * Note that this call may block --- it is up to the caller to make
- * sure that there are no further calls to journal_write_metadata
- * before the revoke is complete. In ext3, this implies calling the
- * revoke before clearing the block bitmap when we are deleting
- * metadata.
- *
- * Revoke performs a journal_forget on any buffer_head passed in as a
- * parameter, but does _not_ forget the buffer_head if the bh was only
- * found implicitly.
- *
- * bh_in may not be a journalled buffer - it may have come off
- * the hash tables without an attached journal_head.
- *
- * If bh_in is non-zero, journal_revoke() will decrement its b_count
- * by one.
- */
-
-int journal_revoke(handle_t *handle, unsigned long blocknr,
- struct buffer_head *bh_in)
-{
- struct buffer_head *bh = NULL;
- journal_t *journal;
- kdev_t dev;
- int err;
-
- if (bh_in)
- BUFFER_TRACE(bh_in, "enter");
-
- journal = handle->h_transaction->t_journal;
- if (!journal_set_features(journal, 0, 0, JFS_FEATURE_INCOMPAT_REVOKE)){
- J_ASSERT (!"Cannot set revoke feature!");
- return -EINVAL;
- }
-
- dev = journal->j_fs_dev;
- bh = bh_in;
-
- if (!bh) {
- bh = get_hash_table(dev, blocknr, journal->j_blocksize);
- if (bh)
- BUFFER_TRACE(bh, "found on hash");
- }
-#ifdef JBD_EXPENSIVE_CHECKING
- else {
- struct buffer_head *bh2;
-
- /* If there is a different buffer_head lying around in
- * memory anywhere... */
- bh2 = get_hash_table(dev, blocknr, journal->j_blocksize);
- if (bh2) {
- /* ... and it has RevokeValid status... */
- if ((bh2 != bh) &&
- test_bit(BH_RevokeValid, &bh2->b_state))
- /* ...then it better be revoked too,
- * since it's illegal to create a revoke
- * record against a buffer_head which is
- * not marked revoked --- that would
- * risk missing a subsequent revoke
- * cancel. */
- J_ASSERT_BH(bh2, test_bit(BH_Revoked, &
- bh2->b_state));
- __brelse(bh2);
- }
- }
-#endif
-
- /* We really ought not ever to revoke twice in a row without
- first having the revoke cancelled: it's illegal to free a
- block twice without allocating it in between! */
- if (bh) {
- J_ASSERT_BH(bh, !test_bit(BH_Revoked, &bh->b_state));
- set_bit(BH_Revoked, &bh->b_state);
- set_bit(BH_RevokeValid, &bh->b_state);
- if (bh_in) {
- BUFFER_TRACE(bh_in, "call journal_forget");
- journal_forget(handle, bh_in);
- } else {
- BUFFER_TRACE(bh, "call brelse");
- __brelse(bh);
- }
- }
-
- lock_journal(journal);
- jbd_debug(2, "insert revoke for block %lu, bh_in=%p\n", blocknr, bh_in);
- err = insert_revoke_hash(journal, blocknr,
- handle->h_transaction->t_tid);
- unlock_journal(journal);
- BUFFER_TRACE(bh_in, "exit");
- return err;
-}
-
-/*
- * Cancel an outstanding revoke. For use only internally by the
- * journaling code (called from journal_get_write_access).
- *
- * We trust the BH_Revoked bit on the buffer if the buffer is already
- * being journaled: if there is no revoke pending on the buffer, then we
- * don't do anything here.
- *
- * This would break if it were possible for a buffer to be revoked and
- * discarded, and then reallocated within the same transaction. In such
- * a case we would have lost the revoked bit, but when we arrived here
- * the second time we would still have a pending revoke to cancel. So,
- * do not trust the Revoked bit on buffers unless RevokeValid is also
- * set.
- *
- * The caller must have the journal locked.
- */
-int journal_cancel_revoke(handle_t *handle, struct journal_head *jh)
-{
- struct jbd_revoke_record_s *record;
- journal_t *journal = handle->h_transaction->t_journal;
- int need_cancel;
- int did_revoke = 0; /* akpm: debug */
- struct buffer_head *bh = jh2bh(jh);
-
- jbd_debug(4, "journal_head %p, cancelling revoke\n", jh);
-
- /* Is the existing Revoke bit valid? If so, we trust it, and
- * only perform the full cancel if the revoke bit is set. If
- * not, we can't trust the revoke bit, and we need to do the
- * full search for a revoke record. */
- if (test_and_set_bit(BH_RevokeValid, &bh->b_state))
- need_cancel = (test_and_clear_bit(BH_Revoked, &bh->b_state));
- else {
- need_cancel = 1;
- clear_bit(BH_Revoked, &bh->b_state);
- }
-
- if (need_cancel) {
- record = find_revoke_record(journal, bh->b_blocknr);
- if (record) {
- jbd_debug(4, "cancelled existing revoke on "
- "blocknr %lu\n", bh->b_blocknr);
- list_del(&record->hash);
- kmem_cache_free(revoke_record_cache, record);
- did_revoke = 1;
- }
- }
-
-#ifdef JBD_EXPENSIVE_CHECKING
- /* There better not be one left behind by now! */
- record = find_revoke_record(journal, bh->b_blocknr);
- J_ASSERT_JH(jh, record == NULL);
-#endif
-
- /* Finally, have we just cleared revoke on an unhashed
- * buffer_head? If so, we'd better make sure we clear the
- * revoked status on any hashed alias too, otherwise the revoke
- * state machine will get very upset later on. */
- if (need_cancel && !bh->b_pprev) {
- struct buffer_head *bh2;
- bh2 = get_hash_table(bh->b_dev, bh->b_blocknr, bh->b_size);
- if (bh2) {
- clear_bit(BH_Revoked, &bh2->b_state);
- __brelse(bh2);
- }
- }
-
- return did_revoke;
-}
-
-
-/*
- * Write revoke records to the journal for all entries in the current
- * revoke hash, deleting the entries as we go.
- *
- * Called with the journal lock held.
- */
-
-void journal_write_revoke_records(journal_t *journal,
- transaction_t *transaction)
-{
- struct journal_head *descriptor;
- struct jbd_revoke_record_s *record;
- struct jbd_revoke_table_s *revoke;
- struct list_head *hash_list;
- int i, offset, count;
-
- descriptor = NULL;
- offset = 0;
- count = 0;
- revoke = journal->j_revoke;
-
- for (i = 0; i < revoke->hash_size; i++) {
- hash_list = &revoke->hash_table[i];
-
- while (!list_empty(hash_list)) {
- record = (struct jbd_revoke_record_s *)
- hash_list->next;
- write_one_revoke_record(journal, transaction,
- &descriptor, &offset,
- record);
- count++;
- list_del(&record->hash);
- kmem_cache_free(revoke_record_cache, record);
- }
- }
- if (descriptor)
- flush_descriptor(journal, descriptor, offset);
- jbd_debug(1, "Wrote %d revoke records\n", count);
-}
-
-/*
- * Write out one revoke record. We need to create a new descriptor
- * block if the old one is full or if we have not already created one.
- */
-
-static void write_one_revoke_record(journal_t *journal,
- transaction_t *transaction,
- struct journal_head **descriptorp,
- int *offsetp,
- struct jbd_revoke_record_s *record)
-{
- struct journal_head *descriptor;
- int offset;
- journal_header_t *header;
-
- /* If we are already aborting, this all becomes a noop. We
- still need to go round the loop in
- journal_write_revoke_records in order to free all of the
- revoke records: only the IO to the journal is omitted. */
- if (is_journal_aborted(journal))
- return;
-
- descriptor = *descriptorp;
- offset = *offsetp;
-
- /* Make sure we have a descriptor with space left for the record */
- if (descriptor) {
- if (offset == journal->j_blocksize) {
- flush_descriptor(journal, descriptor, offset);
- descriptor = NULL;
- }
- }
-
- if (!descriptor) {
- descriptor = journal_get_descriptor_buffer(journal);
- if (!descriptor)
- return;
- header = (journal_header_t *) &jh2bh(descriptor)->b_data[0];
- header->h_magic = htonl(JFS_MAGIC_NUMBER);
- header->h_blocktype = htonl(JFS_REVOKE_BLOCK);
- header->h_sequence = htonl(transaction->t_tid);
-
- /* Record it so that we can wait for IO completion later */
- JBUFFER_TRACE(descriptor, "file as BJ_LogCtl");
- journal_file_buffer(descriptor, transaction, BJ_LogCtl);
-
- offset = sizeof(journal_revoke_header_t);
- *descriptorp = descriptor;
- }
-
- * ((unsigned int *)(&jh2bh(descriptor)->b_data[offset])) =
- htonl(record->blocknr);
- offset += 4;
- *offsetp = offset;
-}
-
-/*
- * Flush a revoke descriptor out to the journal. If we are aborting,
- * this is a noop; otherwise we are generating a buffer which needs to
- * be waited for during commit, so it has to go onto the appropriate
- * journal buffer list.
- */
-
-static void flush_descriptor(journal_t *journal,
- struct journal_head *descriptor,
- int offset)
-{
- journal_revoke_header_t *header;
-
- if (is_journal_aborted(journal)) {
- JBUFFER_TRACE(descriptor, "brelse");
- __brelse(jh2bh(descriptor));
- return;
- }
-
- header = (journal_revoke_header_t *) jh2bh(descriptor)->b_data;
- header->r_count = htonl(offset);
- set_bit(BH_JWrite, &jh2bh(descriptor)->b_state);
- {
- struct buffer_head *bh = jh2bh(descriptor);
- BUFFER_TRACE(bh, "write");
- ll_rw_block (WRITE, 1, &bh);
- }
-}
-
-#endif
-
-/*
- * Revoke support for recovery.
- *
- * Recovery needs to be able to:
- *
- * record all revoke records, including the tid of the latest instance
- * of each revoke in the journal
- *
- * check whether a given block in a given transaction should be replayed
- * (ie. has not been revoked by a revoke record in that or a subsequent
- * transaction)
- *
- * empty the revoke table after recovery.
- */
-
-/*
- * First, setting revoke records. We create a new revoke record for
- * every block ever revoked in the log as we scan it for recovery, and
- * we update the existing records if we find multiple revokes for a
- * single block.
- */
-
-int journal_set_revoke(journal_t *journal,
- unsigned long blocknr,
- tid_t sequence)
-{
- struct jbd_revoke_record_s *record;
-
- record = find_revoke_record(journal, blocknr);
- if (record) {
- /* If we have multiple occurences, only record the
- * latest sequence number in the hashed record */
- if (tid_gt(sequence, record->sequence))
- record->sequence = sequence;
- return 0;
- }
- return insert_revoke_hash(journal, blocknr, sequence);
-}
-
-/*
- * Test revoke records. For a given block referenced in the log, has
- * that block been revoked? A revoke record with a given transaction
- * sequence number revokes all blocks in that transaction and earlier
- * ones, but later transactions still need replayed.
- */
-
-int journal_test_revoke(journal_t *journal,
- unsigned long blocknr,
- tid_t sequence)
-{
- struct jbd_revoke_record_s *record;
-
- record = find_revoke_record(journal, blocknr);
- if (!record)
- return 0;
- if (tid_gt(sequence, record->sequence))
- return 0;
- return 1;
-}
-
-/*
- * Finally, once recovery is over, we need to clear the revoke table so
- * that it can be reused by the running filesystem.
- */
-
-void journal_clear_revoke(journal_t *journal)
-{
- int i;
- struct list_head *hash_list;
- struct jbd_revoke_record_s *record;
- struct jbd_revoke_table_s *revoke_var;
-
- revoke_var = journal->j_revoke;
-
- for (i = 0; i < revoke_var->hash_size; i++) {
- hash_list = &revoke_var->hash_table[i];
- while (!list_empty(hash_list)) {
- record = (struct jbd_revoke_record_s*) hash_list->next;
- list_del(&record->hash);
- kmem_cache_free(revoke_record_cache, record);
- }
- }
-}
-
+++ /dev/null
-/*
- * e2fsck.c - superblock checks
- *
- * Copyright (C) 1993, 1994, 1995, 1996, 1997 Theodore Ts'o.
- *
- * %Begin-Header%
- * This file may be redistributed under the terms of the GNU Public
- * License.
- * %End-Header%
- */
-
-#ifdef HAVE_ERRNO_H
-#include <errno.h>
-#endif
-
-#ifndef EXT2_SKIP_UUID
-#include "uuid/uuid.h"
-#endif
-#include "e2fsck.h"
-#include "problem.h"
-
-#define MIN_CHECK 1
-#define MAX_CHECK 2
-
-static void check_super_value(e2fsck_t ctx, const char *descr,
- unsigned long value, int flags,
- unsigned long min_val, unsigned long max_val)
-{
- struct problem_context pctx;
-
- if (((flags & MIN_CHECK) && (value < min_val)) ||
- ((flags & MAX_CHECK) && (value > max_val))) {
- clear_problem_context(&pctx);
- pctx.num = value;
- pctx.str = descr;
- fix_problem(ctx, PR_0_MISC_CORRUPT_SUPER, &pctx);
- ctx->flags |= E2F_FLAG_ABORT; /* never get here! */
- }
-}
-
-/*
- * This routine may get stubbed out in special compilations of the
- * e2fsck code..
- */
-#ifndef EXT2_SPECIAL_DEVICE_SIZE
-errcode_t e2fsck_get_device_size(e2fsck_t ctx)
-{
- return (ext2fs_get_device_size(ctx->filesystem_name,
- EXT2_BLOCK_SIZE(ctx->fs->super),
- &ctx->num_blocks));
-}
-#endif
-
-/*
- * helper function to release an inode
- */
-struct process_block_struct {
- e2fsck_t ctx;
- char *buf;
- struct problem_context *pctx;
- int truncating;
- int truncate_offset;
- e2_blkcnt_t truncate_block;
- int truncated_blocks;
- int abort;
- errcode_t errcode;
-};
-
-static int release_inode_block(ext2_filsys fs,
- blk_t *block_nr,
- e2_blkcnt_t blockcnt,
- blk_t ref_blk EXT2FS_ATTR((unused)),
- int ref_offset EXT2FS_ATTR((unused)),
- void *priv_data)
-{
- struct process_block_struct *pb;
- e2fsck_t ctx;
- struct problem_context *pctx;
- blk_t blk = *block_nr;
- int retval = 0;
-
- pb = (struct process_block_struct *) priv_data;
- ctx = pb->ctx;
- pctx = pb->pctx;
-
- pctx->blk = blk;
- pctx->blkcount = blockcnt;
-
- if (HOLE_BLKADDR(blk))
- return 0;
-
- if ((blk < fs->super->s_first_data_block) ||
- (blk >= fs->super->s_blocks_count)) {
- fix_problem(ctx, PR_0_ORPHAN_ILLEGAL_BLOCK_NUM, pctx);
- return_abort:
- pb->abort = 1;
- return BLOCK_ABORT;
- }
-
- if (!ext2fs_test_block_bitmap(fs->block_map, blk)) {
- fix_problem(ctx, PR_0_ORPHAN_ALREADY_CLEARED_BLOCK, pctx);
- goto return_abort;
- }
-
- /*
- * If we are deleting an orphan, then we leave the fields alone.
- * If we are truncating an orphan, then update the inode fields
- * and clean up any partial block data.
- */
- if (pb->truncating) {
- /*
- * We only remove indirect blocks if they are
- * completely empty.
- */
- if (blockcnt < 0) {
- int i, limit;
- blk_t *bp;
-
- pb->errcode = io_channel_read_blk(fs->io, blk, 1,
- pb->buf);
- if (pb->errcode)
- goto return_abort;
-
- limit = fs->blocksize >> 2;
- for (i = 0, bp = (blk_t *) pb->buf;
- i < limit; i++, bp++)
- if (*bp)
- return 0;
- }
- /*
- * We don't remove direct blocks until we've reached
- * the truncation block.
- */
- if (blockcnt >= 0 && blockcnt < pb->truncate_block)
- return 0;
- /*
- * If part of the last block needs truncating, we do
- * it here.
- */
- if ((blockcnt == pb->truncate_block) && pb->truncate_offset) {
- pb->errcode = io_channel_read_blk(fs->io, blk, 1,
- pb->buf);
- if (pb->errcode)
- goto return_abort;
- memset(pb->buf + pb->truncate_offset, 0,
- fs->blocksize - pb->truncate_offset);
- pb->errcode = io_channel_write_blk(fs->io, blk, 1,
- pb->buf);
- if (pb->errcode)
- goto return_abort;
- }
- pb->truncated_blocks++;
- *block_nr = 0;
- retval |= BLOCK_CHANGED;
- }
-
- ext2fs_block_alloc_stats(fs, blk, -1);
- return retval;
-}
-
-/*
- * This function releases an inode. Returns 1 if an inconsistency was
- * found. If the inode has a link count, then it is being truncated and
- * not deleted.
- */
-static int release_inode_blocks(e2fsck_t ctx, ext2_ino_t ino,
- struct ext2_inode *inode, char *block_buf,
- struct problem_context *pctx)
-{
- struct process_block_struct pb;
- ext2_filsys fs = ctx->fs;
- errcode_t retval;
- __u32 count;
-
- if (!ext2fs_inode_has_valid_blocks(inode))
- return 0;
-
- pb.buf = block_buf + 3 * ctx->fs->blocksize;
- pb.ctx = ctx;
- pb.abort = 0;
- pb.errcode = 0;
- pb.pctx = pctx;
- if (inode->i_links_count) {
- pb.truncating = 1;
- pb.truncate_block = (e2_blkcnt_t)
- ((((long long)inode->i_size_high << 32) +
- inode->i_size + fs->blocksize - 1) /
- fs->blocksize);
- pb.truncate_offset = inode->i_size % fs->blocksize;
- } else {
- pb.truncating = 0;
- pb.truncate_block = 0;
- pb.truncate_offset = 0;
- }
- pb.truncated_blocks = 0;
- retval = ext2fs_block_iterate2(fs, ino, BLOCK_FLAG_DEPTH_TRAVERSE,
- block_buf, release_inode_block, &pb);
- if (retval) {
- com_err("release_inode_blocks", retval,
- _("while calling ext2fs_block_iterate for inode %d"),
- ino);
- return 1;
- }
- if (pb.abort)
- return 1;
-
- /* Refresh the inode since ext2fs_block_iterate may have changed it */
- e2fsck_read_inode(ctx, ino, inode, "release_inode_blocks");
-
- if (pb.truncated_blocks)
- inode->i_blocks -= pb.truncated_blocks *
- (fs->blocksize / 512);
-
- if (inode->i_file_acl) {
- retval = ext2fs_adjust_ea_refcount(fs, inode->i_file_acl,
- block_buf, -1, &count);
- if (retval == EXT2_ET_BAD_EA_BLOCK_NUM) {
- retval = 0;
- count = 1;
- }
- if (retval) {
- com_err("release_inode_blocks", retval,
- _("while calling ext2fs_adjust_ea_refocunt for inode %d"),
- ino);
- return 1;
- }
- if (count == 0)
- ext2fs_block_alloc_stats(fs, inode->i_file_acl, -1);
- inode->i_file_acl = 0;
- }
- return 0;
-}
-
-/*
- * This function releases all of the orphan inodes. It returns 1 if
- * it hit some error, and 0 on success.
- */
-static int release_orphan_inodes(e2fsck_t ctx)
-{
- ext2_filsys fs = ctx->fs;
- ext2_ino_t ino, next_ino;
- struct ext2_inode inode;
- struct problem_context pctx;
- char *block_buf;
-
- if ((ino = fs->super->s_last_orphan) == 0)
- return 0;
-
- /*
- * Win or lose, we won't be using the head of the orphan inode
- * list again.
- */
- fs->super->s_last_orphan = 0;
- ext2fs_mark_super_dirty(fs);
-
- /*
- * If the filesystem contains errors, don't run the orphan
- * list, since the orphan list can't be trusted; and we're
- * going to be running a full e2fsck run anyway...
- */
- if (fs->super->s_state & EXT2_ERROR_FS)
- return 0;
-
- if ((ino < EXT2_FIRST_INODE(fs->super)) ||
- (ino > fs->super->s_inodes_count)) {
- clear_problem_context(&pctx);
- pctx.ino = ino;
- fix_problem(ctx, PR_0_ORPHAN_ILLEGAL_HEAD_INODE, &pctx);
- return 1;
- }
-
- block_buf = (char *) e2fsck_allocate_memory(ctx, fs->blocksize * 4,
- "block iterate buffer");
- e2fsck_read_bitmaps(ctx);
-
- while (ino) {
- e2fsck_read_inode(ctx, ino, &inode, "release_orphan_inodes");
- clear_problem_context(&pctx);
- pctx.ino = ino;
- pctx.inode = &inode;
- pctx.str = inode.i_links_count ? _("Truncating") :
- _("Clearing");
-
- fix_problem(ctx, PR_0_ORPHAN_CLEAR_INODE, &pctx);
-
- next_ino = inode.i_dtime;
- if (next_ino &&
- ((next_ino < EXT2_FIRST_INODE(fs->super)) ||
- (next_ino > fs->super->s_inodes_count))) {
- pctx.ino = next_ino;
- fix_problem(ctx, PR_0_ORPHAN_ILLEGAL_INODE, &pctx);
- goto return_abort;
- }
-
- if (release_inode_blocks(ctx, ino, &inode, block_buf, &pctx))
- goto return_abort;
-
- if (!inode.i_links_count) {
- ext2fs_inode_alloc_stats2(fs, ino, -1,
- LINUX_S_ISDIR(inode.i_mode));
- inode.i_dtime = time(0);
- } else {
- inode.i_dtime = 0;
- }
- e2fsck_write_inode(ctx, ino, &inode, "delete_file");
- ino = next_ino;
- }
- ext2fs_free_mem(&block_buf);
- return 0;
-return_abort:
- ext2fs_free_mem(&block_buf);
- return 1;
-}
-
-/*
- * Check the resize inode to make sure it is sane. We check both for
- * the case where on-line resizing is not enabled (in which case the
- * resize inode should be cleared) as well as the case where on-line
- * resizing is enabled.
- */
-void check_resize_inode(e2fsck_t ctx)
-{
- ext2_filsys fs = ctx->fs;
- struct ext2_inode inode;
- struct problem_context pctx;
- int i, j, gdt_off, ind_off;
- blk_t blk, pblk, expect;
- __u32 *dind_buf = 0, *ind_buf;
- errcode_t retval;
-
- clear_problem_context(&pctx);
-
- /*
- * If the resize inode feature isn't set, then
- * s_reserved_gdt_blocks must be zero.
- */
- if (!(fs->super->s_feature_compat &
- EXT2_FEATURE_COMPAT_RESIZE_INODE)) {
- if (fs->super->s_reserved_gdt_blocks) {
- pctx.num = fs->super->s_reserved_gdt_blocks;
- if (fix_problem(ctx, PR_0_NONZERO_RESERVED_GDT_BLOCKS,
- &pctx)) {
- fs->super->s_reserved_gdt_blocks = 0;
- ext2fs_mark_super_dirty(fs);
- }
- }
- }
-
- /* Read the resizde inode */
- pctx.ino = EXT2_RESIZE_INO;
- retval = ext2fs_read_inode(fs, EXT2_RESIZE_INO, &inode);
- if (retval) {
- if (fs->super->s_feature_compat &
- EXT2_FEATURE_COMPAT_RESIZE_INODE)
- ctx->flags |= E2F_FLAG_RESIZE_INODE;
- return;
- }
-
- /*
- * If the resize inode feature isn't set, check to make sure
- * the resize inode is cleared; then we're done.
- */
- if (!(fs->super->s_feature_compat &
- EXT2_FEATURE_COMPAT_RESIZE_INODE)) {
- for (i=0; i < EXT2_N_BLOCKS; i++) {
- if (inode.i_block[i])
- break;
- }
- if ((i < EXT2_N_BLOCKS) &&
- fix_problem(ctx, PR_0_CLEAR_RESIZE_INODE, &pctx)) {
- memset(&inode, 0, sizeof(inode));
- e2fsck_write_inode(ctx, EXT2_RESIZE_INO, &inode,
- "clear_resize");
- }
- return;
- }
-
- /*
- * The resize inode feature is enabled; check to make sure the
- * only block in use is the double indirect block
- */
- blk = inode.i_block[EXT2_DIND_BLOCK];
- for (i=0; i < EXT2_N_BLOCKS; i++) {
- if (i != EXT2_DIND_BLOCK && inode.i_block[i])
- break;
- }
- if ((i < EXT2_N_BLOCKS) || !blk || !inode.i_links_count ||
- !(inode.i_mode & LINUX_S_IFREG) ||
- (blk < fs->super->s_first_data_block ||
- blk >= fs->super->s_blocks_count)) {
- resize_inode_invalid:
- if (fix_problem(ctx, PR_0_RESIZE_INODE_INVALID, &pctx)) {
- memset(&inode, 0, sizeof(inode));
- e2fsck_write_inode(ctx, EXT2_RESIZE_INO, &inode,
- "clear_resize");
- ctx->flags |= E2F_FLAG_RESIZE_INODE;
- }
- if (!(ctx->options & E2F_OPT_READONLY)) {
- fs->super->s_state &= ~EXT2_VALID_FS;
- ext2fs_mark_super_dirty(fs);
- }
- goto cleanup;
- }
- dind_buf = (__u32 *) e2fsck_allocate_memory(ctx, fs->blocksize * 2,
- "resize dind buffer");
- ind_buf = (__u32 *) ((char *) dind_buf + fs->blocksize);
-
- retval = ext2fs_read_ind_block(fs, blk, dind_buf);
- if (retval)
- goto resize_inode_invalid;
-
- gdt_off = fs->desc_blocks;
- pblk = fs->super->s_first_data_block + 1 + fs->desc_blocks;
- for (i = 0; i < fs->super->s_reserved_gdt_blocks / 4;
- i++, gdt_off++, pblk++) {
- gdt_off %= fs->blocksize/4;
- if (dind_buf[gdt_off] != pblk)
- goto resize_inode_invalid;
- retval = ext2fs_read_ind_block(fs, pblk, ind_buf);
- if (retval)
- goto resize_inode_invalid;
- ind_off = 0;
- for (j = 1; j < fs->group_desc_count; j++) {
- if (!ext2fs_bg_has_super(fs, j))
- continue;
- expect = pblk + (j * fs->super->s_blocks_per_group);
- if (ind_buf[ind_off] != expect)
- goto resize_inode_invalid;
- ind_off++;
- }
- }
-
-cleanup:
- if (dind_buf)
- ext2fs_free_mem(&dind_buf);
-
- }
-
-void check_super_block(e2fsck_t ctx)
-{
- ext2_filsys fs = ctx->fs;
- blk_t first_block, last_block;
- struct ext2_super_block *sb = fs->super;
- struct ext2_group_desc *gd;
- blk_t blocks_per_group = fs->super->s_blocks_per_group;
- blk_t bpg_max;
- int inodes_per_block;
- int ipg_max;
- int inode_size;
- dgrp_t i;
- blk_t should_be;
- struct problem_context pctx;
- __u32 free_blocks = 0, free_inodes = 0;
-
- inodes_per_block = EXT2_INODES_PER_BLOCK(fs->super);
- ipg_max = inodes_per_block * (blocks_per_group - 4);
- if (ipg_max > EXT2_MAX_INODES_PER_GROUP(sb))
- ipg_max = EXT2_MAX_INODES_PER_GROUP(sb);
- bpg_max = 8 * EXT2_BLOCK_SIZE(sb);
- if (bpg_max > EXT2_MAX_BLOCKS_PER_GROUP(sb))
- bpg_max = EXT2_MAX_BLOCKS_PER_GROUP(sb);
-
- ctx->invalid_inode_bitmap_flag = (int *) e2fsck_allocate_memory(ctx,
- sizeof(int) * fs->group_desc_count, "invalid_inode_bitmap");
- ctx->invalid_block_bitmap_flag = (int *) e2fsck_allocate_memory(ctx,
- sizeof(int) * fs->group_desc_count, "invalid_block_bitmap");
- ctx->invalid_inode_table_flag = (int *) e2fsck_allocate_memory(ctx,
- sizeof(int) * fs->group_desc_count, "invalid_inode_table");
-
- clear_problem_context(&pctx);
-
- /*
- * Verify the super block constants...
- */
- check_super_value(ctx, "inodes_count", sb->s_inodes_count,
- MIN_CHECK, 1, 0);
- check_super_value(ctx, "blocks_count", sb->s_blocks_count,
- MIN_CHECK, 1, 0);
- check_super_value(ctx, "first_data_block", sb->s_first_data_block,
- MAX_CHECK, 0, sb->s_blocks_count);
- check_super_value(ctx, "log_block_size", sb->s_log_block_size,
- MIN_CHECK | MAX_CHECK, 0,
- EXT2_MAX_BLOCK_LOG_SIZE - EXT2_MIN_BLOCK_LOG_SIZE);
- check_super_value(ctx, "log_frag_size", sb->s_log_frag_size,
- MIN_CHECK | MAX_CHECK, 0, sb->s_log_block_size);
- check_super_value(ctx, "frags_per_group", sb->s_frags_per_group,
- MIN_CHECK | MAX_CHECK, sb->s_blocks_per_group,
- bpg_max);
- check_super_value(ctx, "blocks_per_group", sb->s_blocks_per_group,
- MIN_CHECK | MAX_CHECK, 8, bpg_max);
- check_super_value(ctx, "inodes_per_group", sb->s_inodes_per_group,
- MIN_CHECK | MAX_CHECK, inodes_per_block, ipg_max);
- check_super_value(ctx, "r_blocks_count", sb->s_r_blocks_count,
- MAX_CHECK, 0, sb->s_blocks_count / 2);
- check_super_value(ctx, "reserved_gdt_blocks",
- sb->s_reserved_gdt_blocks, MAX_CHECK, 0,
- fs->blocksize/4);
- inode_size = EXT2_INODE_SIZE(sb);
- check_super_value(ctx, "inode_size",
- inode_size, MIN_CHECK | MAX_CHECK,
- EXT2_GOOD_OLD_INODE_SIZE, fs->blocksize);
- if (inode_size & (inode_size - 1)) {
- pctx.num = inode_size;
- pctx.str = "inode_size";
- fix_problem(ctx, PR_0_MISC_CORRUPT_SUPER, &pctx);
- ctx->flags |= E2F_FLAG_ABORT; /* never get here! */
- return;
- }
-
- if (!ctx->num_blocks) {
- pctx.errcode = e2fsck_get_device_size(ctx);
- if (pctx.errcode && pctx.errcode != EXT2_ET_UNIMPLEMENTED) {
- fix_problem(ctx, PR_0_GETSIZE_ERROR, &pctx);
- ctx->flags |= E2F_FLAG_ABORT;
- return;
- }
- if ((pctx.errcode != EXT2_ET_UNIMPLEMENTED) &&
- (ctx->num_blocks < sb->s_blocks_count)) {
- pctx.blk = sb->s_blocks_count;
- pctx.blk2 = ctx->num_blocks;
- if (fix_problem(ctx, PR_0_FS_SIZE_WRONG, &pctx)) {
- ctx->flags |= E2F_FLAG_ABORT;
- return;
- }
- }
- }
-
- if (sb->s_log_block_size != (__u32) sb->s_log_frag_size) {
- pctx.blk = EXT2_BLOCK_SIZE(sb);
- pctx.blk2 = EXT2_FRAG_SIZE(sb);
- fix_problem(ctx, PR_0_NO_FRAGMENTS, &pctx);
- ctx->flags |= E2F_FLAG_ABORT;
- return;
- }
-
- should_be = sb->s_frags_per_group >>
- (sb->s_log_block_size - sb->s_log_frag_size);
- if (sb->s_blocks_per_group != should_be) {
- pctx.blk = sb->s_blocks_per_group;
- pctx.blk2 = should_be;
- fix_problem(ctx, PR_0_BLOCKS_PER_GROUP, &pctx);
- ctx->flags |= E2F_FLAG_ABORT;
- return;
- }
-
- should_be = (sb->s_log_block_size == 0) ? 1 : 0;
- if (sb->s_first_data_block != should_be) {
- pctx.blk = sb->s_first_data_block;
- pctx.blk2 = should_be;
- fix_problem(ctx, PR_0_FIRST_DATA_BLOCK, &pctx);
- ctx->flags |= E2F_FLAG_ABORT;
- return;
- }
-
- should_be = sb->s_inodes_per_group * fs->group_desc_count;
- if (sb->s_inodes_count != should_be) {
- pctx.ino = sb->s_inodes_count;
- pctx.ino2 = should_be;
- if (fix_problem(ctx, PR_0_INODE_COUNT_WRONG, &pctx)) {
- sb->s_inodes_count = should_be;
- ext2fs_mark_super_dirty(fs);
- }
- }
-
- /*
- * Verify the group descriptors....
- */
- first_block = sb->s_first_data_block;
- last_block = first_block + blocks_per_group;
-
- for (i = 0, gd=fs->group_desc; i < fs->group_desc_count; i++, gd++) {
- pctx.group = i;
-
- if (i == fs->group_desc_count - 1)
- last_block = sb->s_blocks_count;
- if ((gd->bg_block_bitmap < first_block) ||
- (gd->bg_block_bitmap >= last_block)) {
- pctx.blk = gd->bg_block_bitmap;
- if (fix_problem(ctx, PR_0_BB_NOT_GROUP, &pctx))
- gd->bg_block_bitmap = 0;
- }
- if (gd->bg_block_bitmap == 0) {
- ctx->invalid_block_bitmap_flag[i]++;
- ctx->invalid_bitmaps++;
- }
- if ((gd->bg_inode_bitmap < first_block) ||
- (gd->bg_inode_bitmap >= last_block)) {
- pctx.blk = gd->bg_inode_bitmap;
- if (fix_problem(ctx, PR_0_IB_NOT_GROUP, &pctx))
- gd->bg_inode_bitmap = 0;
- }
- if (gd->bg_inode_bitmap == 0) {
- ctx->invalid_inode_bitmap_flag[i]++;
- ctx->invalid_bitmaps++;
- }
- if ((gd->bg_inode_table < first_block) ||
- ((gd->bg_inode_table +
- fs->inode_blocks_per_group - 1) >= last_block)) {
- pctx.blk = gd->bg_inode_table;
- if (fix_problem(ctx, PR_0_ITABLE_NOT_GROUP, &pctx))
- gd->bg_inode_table = 0;
- }
- if (gd->bg_inode_table == 0) {
- ctx->invalid_inode_table_flag[i]++;
- ctx->invalid_bitmaps++;
- }
- free_blocks += gd->bg_free_blocks_count;
- free_inodes += gd->bg_free_inodes_count;
- first_block += sb->s_blocks_per_group;
- last_block += sb->s_blocks_per_group;
-
- if ((gd->bg_free_blocks_count > sb->s_blocks_per_group) ||
- (gd->bg_free_inodes_count > sb->s_inodes_per_group) ||
- (gd->bg_used_dirs_count > sb->s_inodes_per_group))
- ext2fs_unmark_valid(fs);
-
- }
-
- /*
- * Update the global counts from the block group counts. This
- * is needed for an experimental patch which eliminates
- * locking the entire filesystem when allocating blocks or
- * inodes; if the filesystem is not unmounted cleanly, the
- * global counts may not be accurate.
- */
- if ((free_blocks != sb->s_free_blocks_count) ||
- (free_inodes != sb->s_free_inodes_count)) {
- if (ctx->options & E2F_OPT_READONLY)
- ext2fs_unmark_valid(fs);
- else {
- sb->s_free_blocks_count = free_blocks;
- sb->s_free_inodes_count = free_inodes;
- ext2fs_mark_super_dirty(fs);
- }
- }
-
- if ((sb->s_free_blocks_count > sb->s_blocks_count) ||
- (sb->s_free_inodes_count > sb->s_inodes_count))
- ext2fs_unmark_valid(fs);
-
-
- /*
- * If we have invalid bitmaps, set the error state of the
- * filesystem.
- */
- if (ctx->invalid_bitmaps && !(ctx->options & E2F_OPT_READONLY)) {
- sb->s_state &= ~EXT2_VALID_FS;
- ext2fs_mark_super_dirty(fs);
- }
-
- clear_problem_context(&pctx);
-
-#ifndef EXT2_SKIP_UUID
- /*
- * If the UUID field isn't assigned, assign it.
- */
- if (!(ctx->options & E2F_OPT_READONLY) && uuid_is_null(sb->s_uuid)) {
- if (fix_problem(ctx, PR_0_ADD_UUID, &pctx)) {
- uuid_generate(sb->s_uuid);
- ext2fs_mark_super_dirty(fs);
- fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
- }
- }
-#endif
-
- /*
- * For the Hurd, check to see if the filetype option is set,
- * since it doesn't support it.
- */
- if (!(ctx->options & E2F_OPT_READONLY) &&
- fs->super->s_creator_os == EXT2_OS_HURD &&
- (fs->super->s_feature_incompat &
- EXT2_FEATURE_INCOMPAT_FILETYPE)) {
- if (fix_problem(ctx, PR_0_HURD_CLEAR_FILETYPE, &pctx)) {
- fs->super->s_feature_incompat &=
- ~EXT2_FEATURE_INCOMPAT_FILETYPE;
- ext2fs_mark_super_dirty(fs);
-
- }
- }
-
- /*
- * If we have any of the compatibility flags set, we need to have a
- * revision 1 filesystem. Most kernels will not check the flags on
- * a rev 0 filesystem and we may have corruption issues because of
- * the incompatible changes to the filesystem.
- */
- if (!(ctx->options & E2F_OPT_READONLY) &&
- fs->super->s_rev_level == EXT2_GOOD_OLD_REV &&
- (fs->super->s_feature_compat ||
- fs->super->s_feature_ro_compat ||
- fs->super->s_feature_incompat) &&
- fix_problem(ctx, PR_0_FS_REV_LEVEL, &pctx)) {
- ext2fs_update_dynamic_rev(fs);
- ext2fs_mark_super_dirty(fs);
- }
-
- check_resize_inode(ctx);
-
- /*
- * Clean up any orphan inodes, if present.
- */
- if (!(ctx->options & E2F_OPT_READONLY) && release_orphan_inodes(ctx)) {
- fs->super->s_state &= ~EXT2_VALID_FS;
- ext2fs_mark_super_dirty(fs);
- }
-
- /*
- * Move the ext3 journal file, if necessary.
- */
- e2fsck_move_ext3_journal(ctx);
- return;
-}
+++ /dev/null
-/*
- * swapfs.c --- byte-swap an ext2 filesystem
- *
- * Copyright 1996, 1997 by Theodore Ts'o
- *
- * %Begin-Header%
- * This file may be redistributed under the terms of the GNU Public
- * License.
- * %End-Header%
- *
- */
-
-#ifdef HAVE_ERRNO_H
-#include <errno.h>
-#endif
-#include "e2fsck.h"
-
-#ifdef ENABLE_SWAPFS
-
-struct swap_block_struct {
- ext2_ino_t ino;
- int isdir;
- errcode_t errcode;
- char *dir_buf;
- struct ext2_inode *inode;
-};
-
-/*
- * This is a helper function for block_iterate. We mark all of the
- * indirect and direct blocks as changed, so that block_iterate will
- * write them out.
- */
-static int swap_block(ext2_filsys fs, blk_t *block_nr, int blockcnt,
- void *priv_data)
-{
- errcode_t retval;
-
- struct swap_block_struct *sb = (struct swap_block_struct *) priv_data;
-
- if (sb->isdir && (blockcnt >= 0) && *block_nr) {
- retval = ext2fs_read_dir_block(fs, *block_nr, sb->dir_buf);
- if (retval) {
- sb->errcode = retval;
- return BLOCK_ABORT;
- }
- retval = ext2fs_write_dir_block(fs, *block_nr, sb->dir_buf);
- if (retval) {
- sb->errcode = retval;
- return BLOCK_ABORT;
- }
- }
- if (blockcnt >= 0) {
- if (blockcnt < EXT2_NDIR_BLOCKS)
- return 0;
- return BLOCK_CHANGED;
- }
- if (blockcnt == BLOCK_COUNT_IND) {
- if (*block_nr == sb->inode->i_block[EXT2_IND_BLOCK])
- return 0;
- return BLOCK_CHANGED;
- }
- if (blockcnt == BLOCK_COUNT_DIND) {
- if (*block_nr == sb->inode->i_block[EXT2_DIND_BLOCK])
- return 0;
- return BLOCK_CHANGED;
- }
- if (blockcnt == BLOCK_COUNT_TIND) {
- if (*block_nr == sb->inode->i_block[EXT2_TIND_BLOCK])
- return 0;
- return BLOCK_CHANGED;
- }
- return BLOCK_CHANGED;
-}
-
-/*
- * This function is responsible for byte-swapping all of the indirect,
- * block pointers. It is also responsible for byte-swapping directories.
- */
-static void swap_inode_blocks(e2fsck_t ctx, ext2_ino_t ino, char *block_buf,
- struct ext2_inode *inode)
-{
- errcode_t retval;
- struct swap_block_struct sb;
-
- sb.ino = ino;
- sb.inode = inode;
- sb.dir_buf = block_buf + ctx->fs->blocksize*3;
- sb.errcode = 0;
- sb.isdir = 0;
- if (LINUX_S_ISDIR(inode->i_mode))
- sb.isdir = 1;
-
- retval = ext2fs_block_iterate(ctx->fs, ino, 0, block_buf,
- swap_block, &sb);
- if (retval) {
- com_err("swap_inode_blocks", retval,
- _("while calling ext2fs_block_iterate"));
- ctx->flags |= E2F_FLAG_ABORT;
- return;
- }
- if (sb.errcode) {
- com_err("swap_inode_blocks", sb.errcode,
- _("while calling iterator function"));
- ctx->flags |= E2F_FLAG_ABORT;
- return;
- }
-}
-
-static void swap_inodes(e2fsck_t ctx)
-{
- ext2_filsys fs = ctx->fs;
- dgrp_t group;
- unsigned int i;
- ext2_ino_t ino = 1;
- char *buf, *block_buf;
- errcode_t retval;
- struct ext2_inode * inode;
-
- e2fsck_use_inode_shortcuts(ctx, 1);
-
- retval = ext2fs_get_mem(fs->blocksize * fs->inode_blocks_per_group,
- &buf);
- if (retval) {
- com_err("swap_inodes", retval,
- _("while allocating inode buffer"));
- ctx->flags |= E2F_FLAG_ABORT;
- return;
- }
- block_buf = (char *) e2fsck_allocate_memory(ctx, fs->blocksize * 4,
- "block interate buffer");
- for (group = 0; group < fs->group_desc_count; group++) {
- retval = io_channel_read_blk(fs->io,
- fs->group_desc[group].bg_inode_table,
- fs->inode_blocks_per_group, buf);
- if (retval) {
- com_err("swap_inodes", retval,
- _("while reading inode table (group %d)"),
- group);
- ctx->flags |= E2F_FLAG_ABORT;
- return;
- }
- inode = (struct ext2_inode *) buf;
- for (i=0; i < fs->super->s_inodes_per_group;
- i++, ino++, inode++) {
- ctx->stashed_ino = ino;
- ctx->stashed_inode = inode;
-
- if (fs->flags & EXT2_FLAG_SWAP_BYTES_READ)
- ext2fs_swap_inode(fs, inode, inode, 0);
-
- /*
- * Skip deleted files.
- */
- if (inode->i_links_count == 0)
- continue;
-
- if (LINUX_S_ISDIR(inode->i_mode) ||
- ((inode->i_block[EXT2_IND_BLOCK] ||
- inode->i_block[EXT2_DIND_BLOCK] ||
- inode->i_block[EXT2_TIND_BLOCK]) &&
- ext2fs_inode_has_valid_blocks(inode)))
- swap_inode_blocks(ctx, ino, block_buf, inode);
-
- if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
- return;
-
- if (fs->flags & EXT2_FLAG_SWAP_BYTES_WRITE)
- ext2fs_swap_inode(fs, inode, inode, 1);
- }
- retval = io_channel_write_blk(fs->io,
- fs->group_desc[group].bg_inode_table,
- fs->inode_blocks_per_group, buf);
- if (retval) {
- com_err("swap_inodes", retval,
- _("while writing inode table (group %d)"),
- group);
- ctx->flags |= E2F_FLAG_ABORT;
- return;
- }
- }
- ext2fs_free_mem(&buf);
- ext2fs_free_mem(&block_buf);
- e2fsck_use_inode_shortcuts(ctx, 0);
- ext2fs_flush_icache(fs);
-}
-
-#if defined(__powerpc__) && defined(EXT2FS_ENABLE_SWAPFS)
-/*
- * On the PowerPC, the big-endian variant of the ext2 filesystem
- * has its bitmaps stored as 32-bit words with bit 0 as the LSB
- * of each word. Thus a bitmap with only bit 0 set would be, as
- * a string of bytes, 00 00 00 01 00 ...
- * To cope with this, we byte-reverse each word of a bitmap if
- * we have a big-endian filesystem, that is, if we are *not*
- * byte-swapping other word-sized numbers.
- */
-#define EXT2_BIG_ENDIAN_BITMAPS
-#endif
-
-#ifdef EXT2_BIG_ENDIAN_BITMAPS
-static void ext2fs_swap_bitmap(ext2fs_generic_bitmap bmap)
-{
- __u32 *p = (__u32 *) bmap->bitmap;
- int n, nbytes = (bmap->end - bmap->start + 7) / 8;
-
- for (n = nbytes / sizeof(__u32); n > 0; --n, ++p)
- *p = ext2fs_swab32(*p);
-}
-#endif
-
-
-void swap_filesys(e2fsck_t ctx)
-{
- ext2_filsys fs = ctx->fs;
-#ifdef RESOURCE_TRACK
- struct resource_track rtrack;
-
- init_resource_track(&rtrack);
-#endif
-
- if (!(ctx->options & E2F_OPT_PREEN))
- printf(_("Pass 0: Doing byte-swap of filesystem\n"));
-
-#ifdef MTRACE
- mtrace_print("Byte swap");
-#endif
-
- if (fs->super->s_mnt_count) {
- fprintf(stderr, _("%s: the filesystem must be freshly "
- "checked using fsck\n"
- "and not mounted before trying to "
- "byte-swap it.\n"), ctx->device_name);
- ctx->flags |= E2F_FLAG_ABORT;
- return;
- }
- if (fs->flags & EXT2_FLAG_SWAP_BYTES) {
- fs->flags &= ~(EXT2_FLAG_SWAP_BYTES|
- EXT2_FLAG_SWAP_BYTES_WRITE);
- fs->flags |= EXT2_FLAG_SWAP_BYTES_READ;
- } else {
- fs->flags &= ~EXT2_FLAG_SWAP_BYTES_READ;
- fs->flags |= EXT2_FLAG_SWAP_BYTES_WRITE;
- }
- swap_inodes(ctx);
- if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
- return;
- if (fs->flags & EXT2_FLAG_SWAP_BYTES_WRITE)
- fs->flags |= EXT2_FLAG_SWAP_BYTES;
- fs->flags &= ~(EXT2_FLAG_SWAP_BYTES_READ|
- EXT2_FLAG_SWAP_BYTES_WRITE);
-
-#ifdef EXT2_BIG_ENDIAN_BITMAPS
- e2fsck_read_bitmaps(ctx);
- ext2fs_swap_bitmap(fs->inode_map);
- ext2fs_swap_bitmap(fs->block_map);
- fs->flags |= EXT2_FLAG_BB_DIRTY | EXT2_FLAG_IB_DIRTY;
-#endif
- fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
- ext2fs_flush(fs);
- fs->flags |= EXT2_FLAG_MASTER_SB_ONLY;
-
-#ifdef RESOURCE_TRACK
- if (ctx->options & E2F_OPT_TIME2)
- print_resource_track(_("Byte swap"), &rtrack);
-#endif
-}
-
-#endif
+++ /dev/null
-/*
- * util.c --- miscellaneous utilities
- *
- * Copyright (C) 1993, 1994, 1995, 1996, 1997 Theodore Ts'o.
- *
- * %Begin-Header%
- * This file may be redistributed under the terms of the GNU Public
- * License.
- * %End-Header%
- */
-
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-#include <ctype.h>
-
-#ifdef HAVE_CONIO_H
-#undef HAVE_TERMIOS_H
-#include <conio.h>
-#define read_a_char() getch()
-#else
-#ifdef HAVE_TERMIOS_H
-#include <termios.h>
-#endif
-#include <stdio.h>
-#endif
-
-#ifdef HAVE_MALLOC_H
-#include <malloc.h>
-#endif
-
-#include "e2fsck.h"
-
-extern e2fsck_t e2fsck_global_ctx; /* Try your very best not to use this! */
-
-#include <sys/time.h>
-#include <sys/resource.h>
-
-#if 0
-void fatal_error(e2fsck_t ctx, const char *msg)
-{
- if (msg)
- fprintf (stderr, "e2fsck: %s\n", msg);
- if (ctx->fs && ctx->fs->io) {
- if (ctx->fs->io->magic == EXT2_ET_MAGIC_IO_CHANNEL)
- io_channel_flush(ctx->fs->io);
- else
- fprintf(stderr, "e2fsck: io manager magic bad!\n");
- }
- ctx->flags |= E2F_FLAG_ABORT;
- if (ctx->flags & E2F_FLAG_SETJMP_OK)
- longjmp(ctx->abort_loc, 1);
- exit(FSCK_ERROR);
-}
-#endif
-
-void *e2fsck_allocate_memory(e2fsck_t ctx, unsigned int size,
- const char *description)
-{
- void *ret;
- char buf[256];
-
-#ifdef DEBUG_ALLOCATE_MEMORY
- printf("Allocating %d bytes for %s...\n", size, description);
-#endif
- ret = malloc(size);
- if (!ret) {
- sprintf(buf, "Can't allocate %s\n", description);
- fatal_error(ctx, buf);
- }
- memset(ret, 0, size);
- return ret;
-}
-
-char *string_copy(e2fsck_t ctx EXT2FS_ATTR((unused)),
- const char *str, int len)
-{
- char *ret;
-
- if (!str)
- return NULL;
- if (!len)
- len = strlen(str);
- ret = malloc(len+1);
- if (ret) {
- strncpy(ret, str, len);
- ret[len] = 0;
- }
- return ret;
-}
-
-#ifndef HAVE_STRNLEN
-/*
- * Incredibly, libc5 doesn't appear to have strnlen. So we have to
- * provide our own.
- */
-int e2fsck_strnlen(const char * s, int count)
-{
- const char *cp = s;
-
- while (count-- && *cp)
- cp++;
- return cp - s;
-}
-#endif
-
-#ifndef HAVE_CONIO_H
-static int read_a_char(void)
-{
- char c;
- int r;
- int fail = 0;
-
- while(1) {
- if (e2fsck_global_ctx &&
- (e2fsck_global_ctx->flags & E2F_FLAG_CANCEL)) {
- return 3;
- }
- r = read(0, &c, 1);
- if (r == 1)
- return c;
- if (fail++ > 100)
- break;
- }
- return EOF;
-}
-#endif
-
-int ask_yn(const char * string, int def)
-{
- int c;
- const char *defstr;
- const char *short_yes = _("yY");
- const char *short_no = _("nN");
-
-#ifdef HAVE_TERMIOS_H
- struct termios termios, tmp;
-
- tcgetattr (0, &termios);
- tmp = termios;
- tmp.c_lflag &= ~(ICANON | ECHO);
- tmp.c_cc[VMIN] = 1;
- tmp.c_cc[VTIME] = 0;
- tcsetattr (0, TCSANOW, &tmp);
-#endif
-
- if (def == 1)
- defstr = _(_("<y>"));
- else if (def == 0)
- defstr = _(_("<n>"));
- else
- defstr = _(" (y/n)");
- printf("%s%s? ", string, defstr);
- while (1) {
- fflush (stdout);
- if ((c = read_a_char()) == EOF)
- break;
- if (c == 3) {
-#ifdef HAVE_TERMIOS_H
- tcsetattr (0, TCSANOW, &termios);
-#endif
- if (e2fsck_global_ctx &&
- e2fsck_global_ctx->flags & E2F_FLAG_SETJMP_OK) {
- puts("\n");
- longjmp(e2fsck_global_ctx->abort_loc, 1);
- }
- puts(_("cancelled!\n"));
- return 0;
- }
- if (strchr(short_yes, (char) c)) {
- def = 1;
- break;
- }
- else if (strchr(short_no, (char) c)) {
- def = 0;
- break;
- }
- else if ((c == ' ' || c == '\n') && (def != -1))
- break;
- }
- if (def)
- puts(_("yes\n"));
- else
- puts (_("no\n"));
-#ifdef HAVE_TERMIOS_H
- tcsetattr (0, TCSANOW, &termios);
-#endif
- return def;
-}
-
-int ask (e2fsck_t ctx, const char * string, int def)
-{
- if (ctx->options & E2F_OPT_NO) {
- printf (_("%s? no\n\n"), string);
- return 0;
- }
- if (ctx->options & E2F_OPT_YES) {
- printf (_("%s? yes\n\n"), string);
- return 1;
- }
- if (ctx->options & E2F_OPT_PREEN) {
- printf ("%s? %s\n\n", string, def ? _("yes") : _("no"));
- return def;
- }
- return ask_yn(string, def);
-}
-
-void e2fsck_read_bitmaps(e2fsck_t ctx)
-{
- ext2_filsys fs = ctx->fs;
- errcode_t retval;
-
- if (ctx->invalid_bitmaps) {
- com_err(ctx->program_name, 0,
- _("e2fsck_read_bitmaps: illegal bitmap block(s) for %s"),
- ctx->device_name);
- fatal_error(ctx, 0);
- }
-
- ehandler_operation(_("reading inode and block bitmaps"));
- retval = ext2fs_read_bitmaps(fs);
- ehandler_operation(0);
- if (retval) {
- com_err(ctx->program_name, retval,
- _("while retrying to read bitmaps for %s"),
- ctx->device_name);
- fatal_error(ctx, 0);
- }
-}
-
-void e2fsck_write_bitmaps(e2fsck_t ctx)
-{
- ext2_filsys fs = ctx->fs;
- errcode_t retval;
-
- if (ext2fs_test_bb_dirty(fs)) {
- ehandler_operation(_("writing block bitmaps"));
- retval = ext2fs_write_block_bitmap(fs);
- ehandler_operation(0);
- if (retval) {
- com_err(ctx->program_name, retval,
- _("while retrying to write block bitmaps for %s"),
- ctx->device_name);
- fatal_error(ctx, 0);
- }
- }
-
- if (ext2fs_test_ib_dirty(fs)) {
- ehandler_operation(_("writing inode bitmaps"));
- retval = ext2fs_write_inode_bitmap(fs);
- ehandler_operation(0);
- if (retval) {
- com_err(ctx->program_name, retval,
- _("while retrying to write inode bitmaps for %s"),
- ctx->device_name);
- fatal_error(ctx, 0);
- }
- }
-}
-
-void preenhalt(e2fsck_t ctx)
-{
- ext2_filsys fs = ctx->fs;
-
- if (!(ctx->options & E2F_OPT_PREEN))
- return;
- fprintf(stderr, _("\n\n%s: UNEXPECTED INCONSISTENCY; "
- "RUN fsck MANUALLY.\n\t(i.e., without -a or -p options)\n"),
- ctx->device_name);
- if (fs != NULL) {
- fs->super->s_state |= EXT2_ERROR_FS;
- ext2fs_mark_super_dirty(fs);
- ext2fs_close(fs);
- }
- exit(FSCK_UNCORRECTED);
-}
-
-#ifdef RESOURCE_TRACK
-void init_resource_track(struct resource_track *track)
-{
-#ifdef HAVE_GETRUSAGE
- struct rusage r;
-#endif
-
- track->brk_start = sbrk(0);
- gettimeofday(&track->time_start, 0);
-#ifdef HAVE_GETRUSAGE
-#ifdef sun
- memset(&r, 0, sizeof(struct rusage));
-#endif
- getrusage(RUSAGE_SELF, &r);
- track->user_start = r.ru_utime;
- track->system_start = r.ru_stime;
-#else
- track->user_start.tv_sec = track->user_start.tv_usec = 0;
- track->system_start.tv_sec = track->system_start.tv_usec = 0;
-#endif
-}
-
-#ifdef __GNUC__
-#define _INLINE_ __inline__
-#else
-#define _INLINE_
-#endif
-
-static _INLINE_ float timeval_subtract(struct timeval *tv1,
- struct timeval *tv2)
-{
- return ((tv1->tv_sec - tv2->tv_sec) +
- ((float) (tv1->tv_usec - tv2->tv_usec)) / 1000000);
-}
-
-void print_resource_track(const char *desc, struct resource_track *track)
-{
-#ifdef HAVE_GETRUSAGE
- struct rusage r;
-#endif
-#ifdef HAVE_MALLINFO
- struct mallinfo malloc_info;
-#endif
- struct timeval time_end;
-
- gettimeofday(&time_end, 0);
-
- if (desc)
- printf("%s: ", desc);
-
-#ifdef HAVE_MALLINFO
-#define kbytes(x) (((x) + 1023) / 1024)
-
- malloc_info = mallinfo();
- printf(_("Memory used: %dk/%dk (%dk/%dk), "),
- kbytes(malloc_info.arena), kbytes(malloc_info.hblkhd),
- kbytes(malloc_info.uordblks), kbytes(malloc_info.fordblks));
-#else
- printf(_("Memory used: %d, "),
- (int) (((char *) sbrk(0)) - ((char *) track->brk_start)));
-#endif
-#ifdef HAVE_GETRUSAGE
- getrusage(RUSAGE_SELF, &r);
-
- printf(_("time: %5.2f/%5.2f/%5.2f\n"),
- timeval_subtract(&time_end, &track->time_start),
- timeval_subtract(&r.ru_utime, &track->user_start),
- timeval_subtract(&r.ru_stime, &track->system_start));
-#else
- printf(_("elapsed time: %6.3f\n"),
- timeval_subtract(&time_end, &track->time_start));
-#endif
-}
-#endif /* RESOURCE_TRACK */
-
-void e2fsck_read_inode(e2fsck_t ctx, unsigned long ino,
- struct ext2_inode * inode, const char *proc)
-{
- int retval;
-
- retval = ext2fs_read_inode(ctx->fs, ino, inode);
- if (retval) {
- com_err("ext2fs_read_inode", retval,
- _("while reading inode %ld in %s"), ino, proc);
- fatal_error(ctx, 0);
- }
-}
-
-extern void e2fsck_write_inode_full(e2fsck_t ctx, unsigned long ino,
- struct ext2_inode * inode, int bufsize,
- const char *proc)
-{
- int retval;
-
- retval = ext2fs_write_inode_full(ctx->fs, ino, inode, bufsize);
- if (retval) {
- com_err("ext2fs_write_inode", retval,
- _("while writing inode %ld in %s"), ino, proc);
- fatal_error(ctx, 0);
- }
-}
-
-extern void e2fsck_write_inode(e2fsck_t ctx, unsigned long ino,
- struct ext2_inode * inode, const char *proc)
-{
- int retval;
-
- retval = ext2fs_write_inode(ctx->fs, ino, inode);
- if (retval) {
- com_err("ext2fs_write_inode", retval,
- _("while writing inode %ld in %s"), ino, proc);
- fatal_error(ctx, 0);
- }
-}
-
-#ifdef MTRACE
-void mtrace_print(char *mesg)
-{
- FILE *malloc_get_mallstream();
- FILE *f = malloc_get_mallstream();
-
- if (f)
- fprintf(f, "============= %s\n", mesg);
-}
-#endif
-
-blk_t get_backup_sb(e2fsck_t ctx, ext2_filsys fs, const char *name,
- io_manager manager)
-{
- struct ext2_super_block *sb;
- io_channel io = NULL;
- void *buf = NULL;
- int blocksize;
- blk_t superblock, ret_sb = 8193;
-
- if (fs && fs->super) {
- ret_sb = (fs->super->s_blocks_per_group +
- fs->super->s_first_data_block);
- if (ctx) {
- ctx->superblock = ret_sb;
- ctx->blocksize = fs->blocksize;
- }
- return ret_sb;
- }
-
- if (ctx) {
- if (ctx->blocksize) {
- ret_sb = ctx->blocksize * 8;
- if (ctx->blocksize == 1024)
- ret_sb++;
- ctx->superblock = ret_sb;
- return ret_sb;
- }
- ctx->superblock = ret_sb;
- ctx->blocksize = 1024;
- }
-
- if (!name || !manager)
- goto cleanup;
-
- if (manager->open(name, 0, &io) != 0)
- goto cleanup;
-
- if (ext2fs_get_mem(SUPERBLOCK_SIZE, &buf))
- goto cleanup;
- sb = (struct ext2_super_block *) buf;
-
- for (blocksize = EXT2_MIN_BLOCK_SIZE;
- blocksize <= EXT2_MAX_BLOCK_SIZE ; blocksize *= 2) {
- superblock = blocksize*8;
- if (blocksize == 1024)
- superblock++;
- io_channel_set_blksize(io, blocksize);
- if (io_channel_read_blk(io, superblock,
- -SUPERBLOCK_SIZE, buf))
- continue;
-#ifdef EXT2FS_ENABLE_SWAPFS
- if (sb->s_magic == ext2fs_swab16(EXT2_SUPER_MAGIC))
- ext2fs_swap_super(sb);
-#endif
- if (sb->s_magic == EXT2_SUPER_MAGIC) {
- ret_sb = superblock;
- if (ctx) {
- ctx->superblock = superblock;
- ctx->blocksize = blocksize;
- }
- break;
- }
- }
-
-cleanup:
- if (io)
- io_channel_close(io);
- if (buf)
- ext2fs_free_mem(&buf);
- return (ret_sb);
-}
-
-/*
- * Given a mode, return the ext2 file type
- */
-int ext2_file_type(unsigned int mode)
-{
- if (LINUX_S_ISREG(mode))
- return EXT2_FT_REG_FILE;
-
- if (LINUX_S_ISDIR(mode))
- return EXT2_FT_DIR;
-
- if (LINUX_S_ISCHR(mode))
- return EXT2_FT_CHRDEV;
-
- if (LINUX_S_ISBLK(mode))
- return EXT2_FT_BLKDEV;
-
- if (LINUX_S_ISLNK(mode))
- return EXT2_FT_SYMLINK;
-
- if (LINUX_S_ISFIFO(mode))
- return EXT2_FT_FIFO;
-
- if (LINUX_S_ISSOCK(mode))
- return EXT2_FT_SOCK;
-
- return 0;
-}
projects / platform / upstream / busybox.git / commitdiff