misc/mke2fs.c

   1 /*
   2  * mke2fs.c - Make a ext2fs filesystem.
   3  *
   4  * Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
   5  *      2003, 2004, 2005 by Theodore Ts'o.
   6  *
   7  * %Begin-Header%
   8  * This file may be redistributed under the terms of the GNU Public
   9  * License.
  10  * %End-Header%
  11  */
  12
  13 /* Usage: mke2fs [options] device
  14  *
  15  * The device may be a block device or a image of one, but this isn't
  16  * enforced (but it's not much fun on a character device :-).
  17  */
  18
  19 #define _XOPEN_SOURCE 600 /* for inclusion of PATH_MAX in Solaris */
  20
  21 #include "config.h"
  22 #include <stdio.h>
  23 #include <string.h>
  24 #include <strings.h>
  25 #include <fcntl.h>
  26 #include <ctype.h>
  27 #include <time.h>
  28 #ifdef __linux__
  29 #include <sys/utsname.h>
  30 #define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))
  31 #endif
  32 #ifdef HAVE_GETOPT_H
  33 #include <getopt.h>
  34 #else
  35 extern char *optarg;
  36 extern int optind;
  37 #endif
  38 #ifdef HAVE_UNISTD_H
  39 #include <unistd.h>
  40 #endif
  41 #ifdef HAVE_STDLIB_H
  42 #include <stdlib.h>
  43 #endif
  44 #ifdef HAVE_ERRNO_H
  45 #include <errno.h>
  46 #endif
  47 #include <sys/ioctl.h>
  48 #include <sys/types.h>
  49 #include <sys/stat.h>
  50 #include <libgen.h>
  51 #include <limits.h>
  52 #include <blkid/blkid.h>
  53
  54 #include "ext2fs/ext2_fs.h"
  55 #include "ext2fs/ext2fsP.h"
  56 #include "et/com_err.h"
  57 #include "uuid/uuid.h"
  58 #include "e2p/e2p.h"
  59 #include "ext2fs/ext2fs.h"
  60 #include "util.h"
  61 #include "profile.h"
  62 #include "prof_err.h"
  63 #include "../version.h"
  64 #include "nls-enable.h"
  65 #include "quota/quotaio.h"
  66 #include "mke2fs.h"
  67
  68 #define STRIDE_LENGTH 8
  69
  70 #define MAX_32_NUM ((((unsigned long long) 1) << 32) - 1)
  71
  72 #ifndef __sparc__
  73 #define ZAP_BOOTBLOCK
  74 #endif
  75
  76 #define DISCARD_STEP_MB         (2048)
  77
  78 extern int isatty(int);
  79 extern FILE *fpopen(const char *cmd, const char *mode);
  80
  81 const char * program_name = "mke2fs";
  82 static const char * device_name /* = NULL */;
  83
  84 /* Command line options */
  85 static int      cflag;
  86 int     verbose;
  87 int     quiet;
  88 static int      super_only;
  89 static int      discard = 1;    /* attempt to discard device before fs creation */
  90 static int      direct_io;
  91 static int      force;
  92 static int      noaction;
  93 static int      num_backups = 2; /* number of backup bg's for sparse_super2 */
  94 static uid_t    root_uid;
  95 static gid_t    root_gid;
  96 int     journal_size;
  97 int     journal_flags;
  98 static int      lazy_itable_init;
  99 static int      packed_meta_blocks;
 100 static char     *bad_blocks_filename = NULL;
 101 static __u32    fs_stride;
 102 static int      quotatype = -1;  /* Initialize both user and group quotas by default */
 103 static __u64    offset;
 104 static blk64_t journal_location = ~0LL;
 105 static int      proceed_delay = -1;
 106 static blk64_t  dev_size;
 107
 108 static struct ext2_super_block fs_param;
 109 static char *fs_uuid = NULL;
 110 static char *creator_os;
 111 static char *volume_label;
 112 static char *mount_dir;
 113 char *journal_device;
 114 static int sync_kludge; /* Set using the MKE2FS_SYNC env. option */
 115 char **fs_types;
 116
 117 static profile_t        profile;
 118
 119 static int sys_page_size = 4096;
 120
 121 static void usage(void)
 122 {
 123         fprintf(stderr, _("Usage: %s [-c|-l filename] [-b block-size] "
 124         "[-C cluster-size]\n\t[-i bytes-per-inode] [-I inode-size] "
 125         "[-J journal-options]\n"
 126         "\t[-G flex-group-size] [-N number-of-inodes]\n"
 127         "\t[-m reserved-blocks-percentage] [-o creator-os]\n"
 128         "\t[-g blocks-per-group] [-L volume-label] "
 129         "[-M last-mounted-directory]\n\t[-O feature[,...]] "
 130         "[-r fs-revision] [-E extended-option[,...]]\n"
 131         "\t[-t fs-type] [-T usage-type ] [-U UUID] "
 132         "[-jnqvDFKSV] device [blocks-count]\n"),
 133                 program_name);
 134         exit(1);
 135 }
 136
 137 static int int_log2(unsigned long long arg)
 138 {
 139         int     l = 0;
 140
 141         arg >>= 1;
 142         while (arg) {
 143                 l++;
 144                 arg >>= 1;
 145         }
 146         return l;
 147 }
 148
 149 int int_log10(unsigned long long arg)
 150 {
 151         int     l;
 152
 153         for (l=0; arg ; l++)
 154                 arg = arg / 10;
 155         return l;
 156 }
 157
 158 #ifdef __linux__
 159 static int parse_version_number(const char *s)
 160 {
 161         int     major, minor, rev;
 162         char    *endptr;
 163         const char *cp = s;
 164
 165         if (!s)
 166                 return 0;
 167         major = strtol(cp, &endptr, 10);
 168         if (cp == endptr || *endptr != '.')
 169                 return 0;
 170         cp = endptr + 1;
 171         minor = strtol(cp, &endptr, 10);
 172         if (cp == endptr || *endptr != '.')
 173                 return 0;
 174         cp = endptr + 1;
 175         rev = strtol(cp, &endptr, 10);
 176         if (cp == endptr)
 177                 return 0;
 178         return KERNEL_VERSION(major, minor, rev);
 179 }
 180
 181 static int is_before_linux_ver(unsigned int major, unsigned int minor,
 182                                unsigned int rev)
 183 {
 184         struct          utsname ut;
 185         static int      linux_version_code = -1;
 186
 187         if (uname(&ut)) {
 188                 perror("uname");
 189                 exit(1);
 190         }
 191         if (linux_version_code < 0)
 192                 linux_version_code = parse_version_number(ut.release);
 193         if (linux_version_code == 0)
 194                 return 0;
 195
 196         return linux_version_code < KERNEL_VERSION(major, minor, rev);
 197 }
 198 #else
 199 static int is_before_linux_ver(unsigned int major, unsigned int minor,
 200                                unsigned int rev)
 201 {
 202         return 0;
 203 }
 204 #endif
 205
 206 /*
 207  * Helper function for read_bb_file and test_disk
 208  */
 209 static void invalid_block(ext2_filsys fs EXT2FS_ATTR((unused)), blk_t blk)
 210 {
 211         fprintf(stderr, _("Bad block %u out of range; ignored.\n"), blk);
 212         return;
 213 }
 214
 215 /*
 216  * Reads the bad blocks list from a file
 217  */
 218 static void read_bb_file(ext2_filsys fs, badblocks_list *bb_list,
 219                          const char *bad_blocks_file)
 220 {
 221         FILE            *f;
 222         errcode_t       retval;
 223
 224         f = fopen(bad_blocks_file, "r");
 225         if (!f) {
 226                 com_err("read_bad_blocks_file", errno,
 227                         _("while trying to open %s"), bad_blocks_file);
 228                 exit(1);
 229         }
 230         retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
 231         fclose (f);
 232         if (retval) {
 233                 com_err("ext2fs_read_bb_FILE", retval, "%s",
 234                         _("while reading in list of bad blocks from file"));
 235                 exit(1);
 236         }
 237 }
 238
 239 /*
 240  * Runs the badblocks program to test the disk
 241  */
 242 static void test_disk(ext2_filsys fs, badblocks_list *bb_list)
 243 {
 244         FILE            *f;
 245         errcode_t       retval;
 246         char            buf[1024];
 247
 248         sprintf(buf, "badblocks -b %d -X %s%s%s %llu", fs->blocksize,
 249                 quiet ? "" : "-s ", (cflag > 1) ? "-w " : "",
 250                 fs->device_name, ext2fs_blocks_count(fs->super)-1);
 251         if (verbose)
 252                 printf(_("Running command: %s\n"), buf);
 253         f = popen(buf, "r");
 254         if (!f) {
 255                 com_err("popen", errno,
 256                         _("while trying to run '%s'"), buf);
 257                 exit(1);
 258         }
 259         retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
 260         pclose(f);
 261         if (retval) {
 262                 com_err("ext2fs_read_bb_FILE", retval, "%s",
 263                         _("while processing list of bad blocks from program"));
 264                 exit(1);
 265         }
 266 }
 267
 268 static void handle_bad_blocks(ext2_filsys fs, badblocks_list bb_list)
 269 {
 270         dgrp_t                  i;
 271         blk_t                   j;
 272         unsigned                must_be_good;
 273         blk_t                   blk;
 274         badblocks_iterate       bb_iter;
 275         errcode_t               retval;
 276         blk_t                   group_block;
 277         int                     group;
 278         int                     group_bad;
 279
 280         if (!bb_list)
 281                 return;
 282
 283         /*
 284          * The primary superblock and group descriptors *must* be
 285          * good; if not, abort.
 286          */
 287         must_be_good = fs->super->s_first_data_block + 1 + fs->desc_blocks;
 288         for (i = fs->super->s_first_data_block; i <= must_be_good; i++) {
 289                 if (ext2fs_badblocks_list_test(bb_list, i)) {
 290                         fprintf(stderr, _("Block %d in primary "
 291                                 "superblock/group descriptor area bad.\n"), i);
 292                         fprintf(stderr, _("Blocks %u through %u must be good "
 293                                 "in order to build a filesystem.\n"),
 294                                 fs->super->s_first_data_block, must_be_good);
 295                         fputs(_("Aborting....\n"), stderr);
 296                         exit(1);
 297                 }
 298         }
 299
 300         /*
 301          * See if any of the bad blocks are showing up in the backup
 302          * superblocks and/or group descriptors.  If so, issue a
 303          * warning and adjust the block counts appropriately.
 304          */
 305         group_block = fs->super->s_first_data_block +
 306                 fs->super->s_blocks_per_group;
 307
 308         for (i = 1; i < fs->group_desc_count; i++) {
 309                 group_bad = 0;
 310                 for (j=0; j < fs->desc_blocks+1; j++) {
 311                         if (ext2fs_badblocks_list_test(bb_list,
 312                                                        group_block + j)) {
 313                                 if (!group_bad)
 314                                         fprintf(stderr,
 315 _("Warning: the backup superblock/group descriptors at block %u contain\n"
 316 "       bad blocks.\n\n"),
 317                                                 group_block);
 318                                 group_bad++;
 319                                 group = ext2fs_group_of_blk2(fs, group_block+j);
 320                                 ext2fs_bg_free_blocks_count_set(fs, group, ext2fs_bg_free_blocks_count(fs, group) + 1);
 321                                 ext2fs_group_desc_csum_set(fs, group);
 322                                 ext2fs_free_blocks_count_add(fs->super, 1);
 323                         }
 324                 }
 325                 group_block += fs->super->s_blocks_per_group;
 326         }
 327
 328         /*
 329          * Mark all the bad blocks as used...
 330          */
 331         retval = ext2fs_badblocks_list_iterate_begin(bb_list, &bb_iter);
 332         if (retval) {
 333                 com_err("ext2fs_badblocks_list_iterate_begin", retval, "%s",
 334                         _("while marking bad blocks as used"));
 335                 exit(1);
 336         }
 337         while (ext2fs_badblocks_list_iterate(bb_iter, &blk))
 338                 ext2fs_mark_block_bitmap2(fs->block_map, EXT2FS_B2C(fs, blk));
 339         ext2fs_badblocks_list_iterate_end(bb_iter);
 340 }
 341
 342 static errcode_t packed_allocate_tables(ext2_filsys fs)
 343 {
 344         errcode_t       retval;
 345         dgrp_t          i;
 346         blk64_t         goal = 0;
 347
 348         for (i = 0; i < fs->group_desc_count; i++) {
 349                 retval = ext2fs_new_block2(fs, goal, NULL, &goal);
 350                 if (retval)
 351                         return retval;
 352                 ext2fs_block_alloc_stats2(fs, goal, +1);
 353                 ext2fs_block_bitmap_loc_set(fs, i, goal);
 354         }
 355         for (i = 0; i < fs->group_desc_count; i++) {
 356                 retval = ext2fs_new_block2(fs, goal, NULL, &goal);
 357                 if (retval)
 358                         return retval;
 359                 ext2fs_block_alloc_stats2(fs, goal, +1);
 360                 ext2fs_inode_bitmap_loc_set(fs, i, goal);
 361         }
 362         for (i = 0; i < fs->group_desc_count; i++) {
 363                 blk64_t end = ext2fs_blocks_count(fs->super) - 1;
 364                 retval = ext2fs_get_free_blocks2(fs, goal, end,
 365                                                  fs->inode_blocks_per_group,
 366                                                  fs->block_map, &goal);
 367                 if (retval)
 368                         return retval;
 369                 ext2fs_block_alloc_stats_range(fs, goal,
 370                                                fs->inode_blocks_per_group, +1);
 371                 ext2fs_inode_table_loc_set(fs, i, goal);
 372                 ext2fs_group_desc_csum_set(fs, i);
 373         }
 374         return 0;
 375 }
 376
 377 static void write_inode_tables(ext2_filsys fs, int lazy_flag, int itable_zeroed)
 378 {
 379         errcode_t       retval;
 380         blk64_t         blk;
 381         dgrp_t          i;
 382         int             num;
 383         struct ext2fs_numeric_progress_struct progress;
 384
 385         ext2fs_numeric_progress_init(fs, &progress,
 386                                      _("Writing inode tables: "),
 387                                      fs->group_desc_count);
 388
 389         for (i = 0; i < fs->group_desc_count; i++) {
 390                 ext2fs_numeric_progress_update(fs, &progress, i);
 391
 392                 blk = ext2fs_inode_table_loc(fs, i);
 393                 num = fs->inode_blocks_per_group;
 394
 395                 if (lazy_flag)
 396                         num = ext2fs_div_ceil((fs->super->s_inodes_per_group -
 397                                                ext2fs_bg_itable_unused(fs, i)) *
 398                                               EXT2_INODE_SIZE(fs->super),
 399                                               EXT2_BLOCK_SIZE(fs->super));
 400                 if (!lazy_flag || itable_zeroed) {
 401                         /* The kernel doesn't need to zero the itable blocks */
 402                         ext2fs_bg_flags_set(fs, i, EXT2_BG_INODE_ZEROED);
 403                         ext2fs_group_desc_csum_set(fs, i);
 404                 }
 405                 retval = ext2fs_zero_blocks2(fs, blk, num, &blk, &num);
 406                 if (retval) {
 407                         fprintf(stderr, _("\nCould not write %d "
 408                                   "blocks in inode table starting at %llu: %s\n"),
 409                                 num, blk, error_message(retval));
 410                         exit(1);
 411                 }
 412                 if (sync_kludge) {
 413                         if (sync_kludge == 1)
 414                                 sync();
 415                         else if ((i % sync_kludge) == 0)
 416                                 sync();
 417                 }
 418         }
 419         ext2fs_zero_blocks2(0, 0, 0, 0, 0);
 420         ext2fs_numeric_progress_close(fs, &progress,
 421                                       _("done                            \n"));
 422 }
 423
 424 static void create_root_dir(ext2_filsys fs)
 425 {
 426         errcode_t               retval;
 427         struct ext2_inode       inode;
 428
 429         retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, 0);
 430         if (retval) {
 431                 com_err("ext2fs_mkdir", retval, "%s",
 432                         _("while creating root dir"));
 433                 exit(1);
 434         }
 435         if (root_uid != 0 || root_gid != 0) {
 436                 retval = ext2fs_read_inode(fs, EXT2_ROOT_INO, &inode);
 437                 if (retval) {
 438                         com_err("ext2fs_read_inode", retval, "%s",
 439                                 _("while reading root inode"));
 440                         exit(1);
 441                 }
 442
 443                 inode.i_uid = root_uid;
 444                 ext2fs_set_i_uid_high(inode, root_uid >> 16);
 445                 inode.i_gid = root_gid;
 446                 ext2fs_set_i_gid_high(inode, root_gid >> 16);
 447
 448                 retval = ext2fs_write_new_inode(fs, EXT2_ROOT_INO, &inode);
 449                 if (retval) {
 450                         com_err("ext2fs_write_inode", retval, "%s",
 451                                 _("while setting root inode ownership"));
 452                         exit(1);
 453                 }
 454         }
 455 }
 456
 457 static void create_lost_and_found(ext2_filsys fs)
 458 {
 459         unsigned int            lpf_size = 0;
 460         errcode_t               retval;
 461         ext2_ino_t              ino;
 462         const char              *name = "lost+found";
 463         int                     i;
 464
 465         fs->umask = 077;
 466         retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, 0, name);
 467         if (retval) {
 468                 com_err("ext2fs_mkdir", retval, "%s",
 469                         _("while creating /lost+found"));
 470                 exit(1);
 471         }
 472
 473         retval = ext2fs_lookup(fs, EXT2_ROOT_INO, name, strlen(name), 0, &ino);
 474         if (retval) {
 475                 com_err("ext2_lookup", retval, "%s",
 476                         _("while looking up /lost+found"));
 477                 exit(1);
 478         }
 479
 480         for (i=1; i < EXT2_NDIR_BLOCKS; i++) {
 481                 /* Ensure that lost+found is at least 2 blocks, so we always
 482                  * test large empty blocks for big-block filesystems.  */
 483                 if ((lpf_size += fs->blocksize) >= 16*1024 &&
 484                     lpf_size >= 2 * fs->blocksize)
 485                         break;
 486                 retval = ext2fs_expand_dir(fs, ino);
 487                 if (retval) {
 488                         com_err("ext2fs_expand_dir", retval, "%s",
 489                                 _("while expanding /lost+found"));
 490                         exit(1);
 491                 }
 492         }
 493 }
 494
 495 static void create_bad_block_inode(ext2_filsys fs, badblocks_list bb_list)
 496 {
 497         errcode_t       retval;
 498
 499         ext2fs_mark_inode_bitmap2(fs->inode_map, EXT2_BAD_INO);
 500         ext2fs_inode_alloc_stats2(fs, EXT2_BAD_INO, +1, 0);
 501         retval = ext2fs_update_bb_inode(fs, bb_list);
 502         if (retval) {
 503                 com_err("ext2fs_update_bb_inode", retval, "%s",
 504                         _("while setting bad block inode"));
 505                 exit(1);
 506         }
 507
 508 }
 509
 510 static void reserve_inodes(ext2_filsys fs)
 511 {
 512         ext2_ino_t      i;
 513
 514         for (i = EXT2_ROOT_INO + 1; i < EXT2_FIRST_INODE(fs->super); i++)
 515                 ext2fs_inode_alloc_stats2(fs, i, +1, 0);
 516         ext2fs_mark_ib_dirty(fs);
 517 }
 518
 519 #define BSD_DISKMAGIC   (0x82564557UL)  /* The disk magic number */
 520 #define BSD_MAGICDISK   (0x57455682UL)  /* The disk magic number reversed */
 521 #define BSD_LABEL_OFFSET        64
 522
 523 static void zap_sector(ext2_filsys fs, int sect, int nsect)
 524 {
 525         char *buf;
 526         int retval;
 527         unsigned int *magic;
 528
 529         buf = malloc(512*nsect);
 530         if (!buf) {
 531                 printf(_("Out of memory erasing sectors %d-%d\n"),
 532                        sect, sect + nsect - 1);
 533                 exit(1);
 534         }
 535
 536         if (sect == 0) {
 537                 /* Check for a BSD disklabel, and don't erase it if so */
 538                 retval = io_channel_read_blk64(fs->io, 0, -512, buf);
 539                 if (retval)
 540                         fprintf(stderr,
 541                                 _("Warning: could not read block 0: %s\n"),
 542                                 error_message(retval));
 543                 else {
 544                         magic = (unsigned int *) (buf + BSD_LABEL_OFFSET);
 545                         if ((*magic == BSD_DISKMAGIC) ||
 546                             (*magic == BSD_MAGICDISK))
 547                                 return;
 548                 }
 549         }
 550
 551         memset(buf, 0, 512*nsect);
 552         io_channel_set_blksize(fs->io, 512);
 553         retval = io_channel_write_blk64(fs->io, sect, -512*nsect, buf);
 554         io_channel_set_blksize(fs->io, fs->blocksize);
 555         free(buf);
 556         if (retval)
 557                 fprintf(stderr, _("Warning: could not erase sector %d: %s\n"),
 558                         sect, error_message(retval));
 559 }
 560
 561 static void create_journal_dev(ext2_filsys fs)
 562 {
 563         struct ext2fs_numeric_progress_struct progress;
 564         errcode_t               retval;
 565         char                    *buf;
 566         blk64_t                 blk, err_blk;
 567         int                     c, count, err_count;
 568
 569         retval = ext2fs_create_journal_superblock(fs,
 570                                   ext2fs_blocks_count(fs->super), 0, &buf);
 571         if (retval) {
 572                 com_err("create_journal_dev", retval, "%s",
 573                         _("while initializing journal superblock"));
 574                 exit(1);
 575         }
 576
 577         if (journal_flags & EXT2_MKJOURNAL_LAZYINIT)
 578                 goto write_superblock;
 579
 580         ext2fs_numeric_progress_init(fs, &progress,
 581                                      _("Zeroing journal device: "),
 582                                      ext2fs_blocks_count(fs->super));
 583         blk = 0;
 584         count = ext2fs_blocks_count(fs->super);
 585         while (count > 0) {
 586                 if (count > 1024)
 587                         c = 1024;
 588                 else
 589                         c = count;
 590                 retval = ext2fs_zero_blocks2(fs, blk, c, &err_blk, &err_count);
 591                 if (retval) {
 592                         com_err("create_journal_dev", retval,
 593                                 _("while zeroing journal device "
 594                                   "(block %llu, count %d)"),
 595                                 err_blk, err_count);
 596                         exit(1);
 597                 }
 598                 blk += c;
 599                 count -= c;
 600                 ext2fs_numeric_progress_update(fs, &progress, blk);
 601         }
 602         ext2fs_zero_blocks2(0, 0, 0, 0, 0);
 603
 604         ext2fs_numeric_progress_close(fs, &progress, NULL);
 605 write_superblock:
 606         retval = io_channel_write_blk64(fs->io,
 607                                         fs->super->s_first_data_block+1,
 608                                         1, buf);
 609         if (retval) {
 610                 com_err("create_journal_dev", retval, "%s",
 611                         _("while writing journal superblock"));
 612                 exit(1);
 613         }
 614 }
 615
 616 static void show_stats(ext2_filsys fs)
 617 {
 618         struct ext2_super_block *s = fs->super;
 619         char                    buf[80];
 620         char                    *os;
 621         blk64_t                 group_block;
 622         dgrp_t                  i;
 623         int                     need, col_left;
 624
 625         if (!verbose) {
 626                 printf(_("Creating filesystem with %llu %dk blocks and "
 627                          "%u inodes\n"),
 628                        ext2fs_blocks_count(s), fs->blocksize >> 10,
 629                        s->s_inodes_count);
 630                 goto skip_details;
 631         }
 632
 633         if (ext2fs_blocks_count(&fs_param) != ext2fs_blocks_count(s))
 634                 fprintf(stderr, _("warning: %llu blocks unused.\n\n"),
 635                        ext2fs_blocks_count(&fs_param) - ext2fs_blocks_count(s));
 636
 637         memset(buf, 0, sizeof(buf));
 638         strncpy(buf, s->s_volume_name, sizeof(s->s_volume_name));
 639         printf(_("Filesystem label=%s\n"), buf);
 640         os = e2p_os2string(fs->super->s_creator_os);
 641         if (os)
 642                 printf(_("OS type: %s\n"), os);
 643         free(os);
 644         printf(_("Block size=%u (log=%u)\n"), fs->blocksize,
 645                 s->s_log_block_size);
 646         if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
 647                                        EXT4_FEATURE_RO_COMPAT_BIGALLOC))
 648                 printf(_("Cluster size=%u (log=%u)\n"),
 649                        fs->blocksize << fs->cluster_ratio_bits,
 650                        s->s_log_cluster_size);
 651         else
 652                 printf(_("Fragment size=%u (log=%u)\n"), EXT2_CLUSTER_SIZE(s),
 653                        s->s_log_cluster_size);
 654         printf(_("Stride=%u blocks, Stripe width=%u blocks\n"),
 655                s->s_raid_stride, s->s_raid_stripe_width);
 656         printf(_("%u inodes, %llu blocks\n"), s->s_inodes_count,
 657                ext2fs_blocks_count(s));
 658         printf(_("%llu blocks (%2.2f%%) reserved for the super user\n"),
 659                 ext2fs_r_blocks_count(s),
 660                100.0 *  ext2fs_r_blocks_count(s) / ext2fs_blocks_count(s));
 661         printf(_("First data block=%u\n"), s->s_first_data_block);
 662         if (root_uid != 0 || root_gid != 0)
 663                 printf(_("Root directory owner=%u:%u\n"), root_uid, root_gid);
 664         if (s->s_reserved_gdt_blocks)
 665                 printf(_("Maximum filesystem blocks=%lu\n"),
 666                        (s->s_reserved_gdt_blocks + fs->desc_blocks) *
 667                        EXT2_DESC_PER_BLOCK(s) * s->s_blocks_per_group);
 668         if (fs->group_desc_count > 1)
 669                 printf(_("%u block groups\n"), fs->group_desc_count);
 670         else
 671                 printf(_("%u block group\n"), fs->group_desc_count);
 672         if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
 673                                        EXT4_FEATURE_RO_COMPAT_BIGALLOC))
 674                 printf(_("%u blocks per group, %u clusters per group\n"),
 675                        s->s_blocks_per_group, s->s_clusters_per_group);
 676         else
 677                 printf(_("%u blocks per group, %u fragments per group\n"),
 678                        s->s_blocks_per_group, s->s_clusters_per_group);
 679         printf(_("%u inodes per group\n"), s->s_inodes_per_group);
 680
 681 skip_details:
 682         if (fs->group_desc_count == 1) {
 683                 printf("\n");
 684                 return;
 685         }
 686
 687         if (!e2p_is_null_uuid(s->s_uuid))
 688                 printf(_("Filesystem UUID: %s\n"), e2p_uuid2str(s->s_uuid));
 689         printf("%s", _("Superblock backups stored on blocks: "));
 690         group_block = s->s_first_data_block;
 691         col_left = 0;
 692         for (i = 1; i < fs->group_desc_count; i++) {
 693                 group_block += s->s_blocks_per_group;
 694                 if (!ext2fs_bg_has_super(fs, i))
 695                         continue;
 696                 if (i != 1)
 697                         printf(", ");
 698                 need = int_log10(group_block) + 2;
 699                 if (need > col_left) {
 700                         printf("\n\t");
 701                         col_left = 72;
 702                 }
 703                 col_left -= need;
 704                 printf("%llu", group_block);
 705         }
 706         printf("\n\n");
 707 }
 708
 709 /*
 710  * Set the S_CREATOR_OS field.  Return true if OS is known,
 711  * otherwise, 0.
 712  */
 713 static int set_os(struct ext2_super_block *sb, char *os)
 714 {
 715         if (isdigit (*os))
 716                 sb->s_creator_os = atoi (os);
 717         else if (strcasecmp(os, "linux") == 0)
 718                 sb->s_creator_os = EXT2_OS_LINUX;
 719         else if (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0)
 720                 sb->s_creator_os = EXT2_OS_HURD;
 721         else if (strcasecmp(os, "freebsd") == 0)
 722                 sb->s_creator_os = EXT2_OS_FREEBSD;
 723         else if (strcasecmp(os, "lites") == 0)
 724                 sb->s_creator_os = EXT2_OS_LITES;
 725         else
 726                 return 0;
 727         return 1;
 728 }
 729
 730 #define PATH_SET "PATH=/sbin"
 731
 732 static void parse_extended_opts(struct ext2_super_block *param,
 733                                 const char *opts)
 734 {
 735         char    *buf, *token, *next, *p, *arg, *badopt = 0;
 736         int     len;
 737         int     r_usage = 0;
 738
 739         len = strlen(opts);
 740         buf = malloc(len+1);
 741         if (!buf) {
 742                 fprintf(stderr, "%s",
 743                         _("Couldn't allocate memory to parse options!\n"));
 744                 exit(1);
 745         }
 746         strcpy(buf, opts);
 747         for (token = buf; token && *token; token = next) {
 748                 p = strchr(token, ',');
 749                 next = 0;
 750                 if (p) {
 751                         *p = 0;
 752                         next = p+1;
 753                 }
 754                 arg = strchr(token, '=');
 755                 if (arg) {
 756                         *arg = 0;
 757                         arg++;
 758                 }
 759                 if (strcmp(token, "desc-size") == 0 ||
 760                     strcmp(token, "desc_size") == 0) {
 761                         int desc_size;
 762
 763                         if (!(fs_param.s_feature_incompat &
 764                               EXT4_FEATURE_INCOMPAT_64BIT)) {
 765                                 fprintf(stderr,
 766                                         _("%s requires '-O 64bit'\n"), token);
 767                                 r_usage++;
 768                                 continue;
 769                         }
 770                         if (param->s_reserved_gdt_blocks != 0) {
 771                                 fprintf(stderr,
 772                                         _("'%s' must be before 'resize=%u'\n"),
 773                                         token, param->s_reserved_gdt_blocks);
 774                                 r_usage++;
 775                                 continue;
 776                         }
 777                         if (!arg) {
 778                                 r_usage++;
 779                                 badopt = token;
 780                                 continue;
 781                         }
 782                         desc_size = strtoul(arg, &p, 0);
 783                         if (*p || (desc_size & (desc_size - 1))) {
 784                                 fprintf(stderr,
 785                                         _("Invalid desc_size: '%s'\n"), arg);
 786                                 r_usage++;
 787                                 continue;
 788                         }
 789                         param->s_desc_size = desc_size;
 790                 } else if (strcmp(token, "offset") == 0) {
 791                         if (!arg) {
 792                                 r_usage++;
 793                                 badopt = token;
 794                                 continue;
 795                         }
 796                         offset = strtoull(arg, &p, 0);
 797                         if (*p) {
 798                                 fprintf(stderr, _("Invalid offset: %s\n"),
 799                                         arg);
 800                                 r_usage++;
 801                                 continue;
 802                         }
 803                 } else if (strcmp(token, "mmp_update_interval") == 0) {
 804                         if (!arg) {
 805                                 r_usage++;
 806                                 badopt = token;
 807                                 continue;
 808                         }
 809                         param->s_mmp_update_interval = strtoul(arg, &p, 0);
 810                         if (*p) {
 811                                 fprintf(stderr,
 812                                         _("Invalid mmp_update_interval: %s\n"),
 813                                         arg);
 814                                 r_usage++;
 815                                 continue;
 816                         }
 817                 } else if (strcmp(token, "num_backup_sb") == 0) {
 818                         if (!arg) {
 819                                 r_usage++;
 820                                 badopt = token;
 821                                 continue;
 822                         }
 823                         num_backups = strtoul(arg, &p, 0);
 824                         if (*p || num_backups > 2) {
 825                                 fprintf(stderr,
 826                                         _("Invalid # of backup "
 827                                           "superblocks: %s\n"),
 828                                         arg);
 829                                 r_usage++;
 830                                 continue;
 831                         }
 832                 } else if (strcmp(token, "packed_meta_blocks") == 0) {
 833                         if (arg)
 834                                 packed_meta_blocks = strtoul(arg, &p, 0);
 835                         else
 836                                 packed_meta_blocks = 1;
 837                         if (packed_meta_blocks)
 838                                 journal_location = 0;
 839                 } else if (strcmp(token, "stride") == 0) {
 840                         if (!arg) {
 841                                 r_usage++;
 842                                 badopt = token;
 843                                 continue;
 844                         }
 845                         param->s_raid_stride = strtoul(arg, &p, 0);
 846                         if (*p) {
 847                                 fprintf(stderr,
 848                                         _("Invalid stride parameter: %s\n"),
 849                                         arg);
 850                                 r_usage++;
 851                                 continue;
 852                         }
 853                 } else if (strcmp(token, "stripe-width") == 0 ||
 854                            strcmp(token, "stripe_width") == 0) {
 855                         if (!arg) {
 856                                 r_usage++;
 857                                 badopt = token;
 858                                 continue;
 859                         }
 860                         param->s_raid_stripe_width = strtoul(arg, &p, 0);
 861                         if (*p) {
 862                                 fprintf(stderr,
 863                                         _("Invalid stripe-width parameter: %s\n"),
 864                                         arg);
 865                                 r_usage++;
 866                                 continue;
 867                         }
 868                 } else if (!strcmp(token, "resize")) {
 869                         blk64_t resize;
 870                         unsigned long bpg, rsv_groups;
 871                         unsigned long group_desc_count, desc_blocks;
 872                         unsigned int gdpb, blocksize;
 873                         int rsv_gdb;
 874
 875                         if (!arg) {
 876                                 r_usage++;
 877                                 badopt = token;
 878                                 continue;
 879                         }
 880
 881                         resize = parse_num_blocks2(arg,
 882                                                    param->s_log_block_size);
 883
 884                         if (resize == 0) {
 885                                 fprintf(stderr,
 886                                         _("Invalid resize parameter: %s\n"),
 887                                         arg);
 888                                 r_usage++;
 889                                 continue;
 890                         }
 891                         if (resize <= ext2fs_blocks_count(param)) {
 892                                 fprintf(stderr, "%s",
 893                                         _("The resize maximum must be greater "
 894                                           "than the filesystem size.\n"));
 895                                 r_usage++;
 896                                 continue;
 897                         }
 898
 899                         blocksize = EXT2_BLOCK_SIZE(param);
 900                         bpg = param->s_blocks_per_group;
 901                         if (!bpg)
 902                                 bpg = blocksize * 8;
 903                         gdpb = EXT2_DESC_PER_BLOCK(param);
 904                         group_desc_count = (__u32) ext2fs_div64_ceil(
 905                                 ext2fs_blocks_count(param), bpg);
 906                         desc_blocks = (group_desc_count +
 907                                        gdpb - 1) / gdpb;
 908                         rsv_groups = ext2fs_div64_ceil(resize, bpg);
 909                         rsv_gdb = ext2fs_div_ceil(rsv_groups, gdpb) -
 910                                 desc_blocks;
 911                         if (rsv_gdb > (int) EXT2_ADDR_PER_BLOCK(param))
 912                                 rsv_gdb = EXT2_ADDR_PER_BLOCK(param);
 913
 914                         if (rsv_gdb > 0) {
 915                                 if (param->s_rev_level == EXT2_GOOD_OLD_REV) {
 916                                         fprintf(stderr, "%s",
 917         _("On-line resizing not supported with revision 0 filesystems\n"));
 918                                         free(buf);
 919                                         exit(1);
 920                                 }
 921                                 param->s_feature_compat |=
 922                                         EXT2_FEATURE_COMPAT_RESIZE_INODE;
 923
 924                                 param->s_reserved_gdt_blocks = rsv_gdb;
 925                         }
 926                 } else if (!strcmp(token, "test_fs")) {
 927                         param->s_flags |= EXT2_FLAGS_TEST_FILESYS;
 928                 } else if (!strcmp(token, "lazy_itable_init")) {
 929                         if (arg)
 930                                 lazy_itable_init = strtoul(arg, &p, 0);
 931                         else
 932                                 lazy_itable_init = 1;
 933                 } else if (!strcmp(token, "lazy_journal_init")) {
 934                         if (arg)
 935                                 journal_flags |= strtoul(arg, &p, 0) ?
 936                                                 EXT2_MKJOURNAL_LAZYINIT : 0;
 937                         else
 938                                 journal_flags |= EXT2_MKJOURNAL_LAZYINIT;
 939                 } else if (!strcmp(token, "root_owner")) {
 940                         if (arg) {
 941                                 root_uid = strtoul(arg, &p, 0);
 942                                 if (*p != ':') {
 943                                         fprintf(stderr,
 944                                                 _("Invalid root_owner: '%s'\n"),
 945                                                 arg);
 946                                         r_usage++;
 947                                         continue;
 948                                 }
 949                                 p++;
 950                                 root_gid = strtoul(p, &p, 0);
 951                                 if (*p) {
 952                                         fprintf(stderr,
 953                                                 _("Invalid root_owner: '%s'\n"),
 954                                                 arg);
 955                                         r_usage++;
 956                                         continue;
 957                                 }
 958                         } else {
 959                                 root_uid = getuid();
 960                                 root_gid = getgid();
 961                         }
 962                 } else if (!strcmp(token, "discard")) {
 963                         discard = 1;
 964                 } else if (!strcmp(token, "nodiscard")) {
 965                         discard = 0;
 966                 } else if (!strcmp(token, "quotatype")) {
 967                         if (!arg) {
 968                                 r_usage++;
 969                                 badopt = token;
 970                                 continue;
 971                         }
 972                         if (!strncmp(arg, "usr", 3)) {
 973                                 quotatype = 0;
 974                         } else if (!strncmp(arg, "grp", 3)) {
 975                                 quotatype = 1;
 976                         } else {
 977                                 fprintf(stderr,
 978                                         _("Invalid quotatype parameter: %s\n"),
 979                                         arg);
 980                                 r_usage++;
 981                                 continue;
 982                         }
 983                 } else {
 984                         r_usage++;
 985                         badopt = token;
 986                 }
 987         }
 988         if (r_usage) {
 989                 fprintf(stderr, _("\nBad option(s) specified: %s\n\n"
 990                         "Extended options are separated by commas, "
 991                         "and may take an argument which\n"
 992                         "\tis set off by an equals ('=') sign.\n\n"
 993                         "Valid extended options are:\n"
 994                         "\tmmp_update_interval=<interval>\n"
 995                         "\tnum_backup_sb=<0|1|2>\n"
 996                         "\tstride=<RAID per-disk data chunk in blocks>\n"
 997                         "\tstripe-width=<RAID stride * data disks in blocks>\n"
 998                         "\toffset=<offset to create the file system>\n"
 999                         "\tresize=<resize maximum size in blocks>\n"
1000                         "\tpacked_meta_blocks=<0 to disable, 1 to enable>\n"
1001                         "\tlazy_itable_init=<0 to disable, 1 to enable>\n"
1002                         "\tlazy_journal_init=<0 to disable, 1 to enable>\n"
1003                         "\troot_uid=<uid of root directory>\n"
1004                         "\troot_gid=<gid of root directory>\n"
1005                         "\ttest_fs\n"
1006                         "\tdiscard\n"
1007                         "\tnodiscard\n"
1008                         "\tquotatype=<usr OR grp>\n\n"),
1009                         badopt ? badopt : "");
1010                 free(buf);
1011                 exit(1);
1012         }
1013         if (param->s_raid_stride &&
1014             (param->s_raid_stripe_width % param->s_raid_stride) != 0)
1015                 fprintf(stderr, _("\nWarning: RAID stripe-width %u not an even "
1016                                   "multiple of stride %u.\n\n"),
1017                         param->s_raid_stripe_width, param->s_raid_stride);
1018
1019         free(buf);
1020 }
1021
1022 static __u32 ok_features[3] = {
1023         /* Compat */
1024         EXT3_FEATURE_COMPAT_HAS_JOURNAL |
1025                 EXT2_FEATURE_COMPAT_RESIZE_INODE |
1026                 EXT2_FEATURE_COMPAT_DIR_INDEX |
1027                 EXT2_FEATURE_COMPAT_EXT_ATTR |
1028                 EXT4_FEATURE_COMPAT_SPARSE_SUPER2,
1029         /* Incompat */
1030         EXT2_FEATURE_INCOMPAT_FILETYPE|
1031                 EXT3_FEATURE_INCOMPAT_EXTENTS|
1032                 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|
1033                 EXT2_FEATURE_INCOMPAT_META_BG|
1034                 EXT4_FEATURE_INCOMPAT_FLEX_BG|
1035                 EXT4_FEATURE_INCOMPAT_MMP |
1036                 EXT4_FEATURE_INCOMPAT_64BIT,
1037         /* R/O compat */
1038         EXT2_FEATURE_RO_COMPAT_LARGE_FILE|
1039                 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|
1040                 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
1041                 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|
1042                 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|
1043                 EXT4_FEATURE_RO_COMPAT_GDT_CSUM|
1044                 EXT4_FEATURE_RO_COMPAT_BIGALLOC|
1045 #ifdef CONFIG_QUOTA
1046                 EXT4_FEATURE_RO_COMPAT_QUOTA|
1047 #endif
1048                 0
1049 };
1050
1051
1052 static void syntax_err_report(const char *filename, long err, int line_num)
1053 {
1054         fprintf(stderr,
1055                 _("Syntax error in mke2fs config file (%s, line #%d)\n\t%s\n"),
1056                 filename, line_num, error_message(err));
1057         exit(1);
1058 }
1059
1060 static const char *config_fn[] = { ROOT_SYSCONFDIR "/mke2fs.conf", 0 };
1061
1062 static void edit_feature(const char *str, __u32 *compat_array)
1063 {
1064         if (!str)
1065                 return;
1066
1067         if (e2p_edit_feature(str, compat_array, ok_features)) {
1068                 fprintf(stderr, _("Invalid filesystem option set: %s\n"),
1069                         str);
1070                 exit(1);
1071         }
1072 }
1073
1074 static void edit_mntopts(const char *str, __u32 *mntopts)
1075 {
1076         if (!str)
1077                 return;
1078
1079         if (e2p_edit_mntopts(str, mntopts, ~0)) {
1080                 fprintf(stderr, _("Invalid mount option set: %s\n"),
1081                         str);
1082                 exit(1);
1083         }
1084 }
1085
1086 struct str_list {
1087         char **list;
1088         int num;
1089         int max;
1090 };
1091
1092 static errcode_t init_list(struct str_list *sl)
1093 {
1094         sl->num = 0;
1095         sl->max = 0;
1096         sl->list = malloc((sl->max+1) * sizeof(char *));
1097         if (!sl->list)
1098                 return ENOMEM;
1099         sl->list[0] = 0;
1100         return 0;
1101 }
1102
1103 static errcode_t push_string(struct str_list *sl, const char *str)
1104 {
1105         char **new_list;
1106
1107         if (sl->num >= sl->max) {
1108                 sl->max += 2;
1109                 new_list = realloc(sl->list, (sl->max+1) * sizeof(char *));
1110                 if (!new_list)
1111                         return ENOMEM;
1112                 sl->list = new_list;
1113         }
1114         sl->list[sl->num] = malloc(strlen(str)+1);
1115         if (sl->list[sl->num] == 0)
1116                 return ENOMEM;
1117         strcpy(sl->list[sl->num], str);
1118         sl->num++;
1119         sl->list[sl->num] = 0;
1120         return 0;
1121 }
1122
1123 static void print_str_list(char **list)
1124 {
1125         char **cpp;
1126
1127         for (cpp = list; *cpp; cpp++) {
1128                 printf("'%s'", *cpp);
1129                 if (cpp[1])
1130                         fputs(", ", stdout);
1131         }
1132         fputc('\n', stdout);
1133 }
1134
1135 /*
1136  * Return TRUE if the profile has the given subsection
1137  */
1138 static int profile_has_subsection(profile_t prof, const char *section,
1139                                   const char *subsection)
1140 {
1141         void                    *state;
1142         const char              *names[4];
1143         char                    *name;
1144         int                     ret = 0;
1145
1146         names[0] = section;
1147         names[1] = subsection;
1148         names[2] = 0;
1149
1150         if (profile_iterator_create(prof, names,
1151                                     PROFILE_ITER_LIST_SECTION |
1152                                     PROFILE_ITER_RELATIONS_ONLY, &state))
1153                 return 0;
1154
1155         if ((profile_iterator(&state, &name, 0) == 0) && name) {
1156                 free(name);
1157                 ret = 1;
1158         }
1159
1160         profile_iterator_free(&state);
1161         return ret;
1162 }
1163
1164 static char **parse_fs_type(const char *fs_type,
1165                             const char *usage_types,
1166                             struct ext2_super_block *sb,
1167                             blk64_t fs_blocks_count,
1168                             char *progname)
1169 {
1170         const char      *ext_type = 0;
1171         char            *parse_str;
1172         char            *profile_type = 0;
1173         char            *cp, *t;
1174         const char      *size_type;
1175         struct str_list list;
1176         unsigned long long meg;
1177         int             is_hurd = 0;
1178
1179         if (init_list(&list))
1180                 return 0;
1181
1182         if (creator_os && (!strcasecmp(creator_os, "GNU") ||
1183                            !strcasecmp(creator_os, "hurd")))
1184                 is_hurd = 1;
1185
1186         if (fs_type)
1187                 ext_type = fs_type;
1188         else if (is_hurd)
1189                 ext_type = "ext2";
1190         else if (!strcmp(program_name, "mke3fs"))
1191                 ext_type = "ext3";
1192         else if (!strcmp(program_name, "mke4fs"))
1193                 ext_type = "ext4";
1194         else if (progname) {
1195                 ext_type = strrchr(progname, '/');
1196                 if (ext_type)
1197                         ext_type++;
1198                 else
1199                         ext_type = progname;
1200
1201                 if (!strncmp(ext_type, "mkfs.", 5)) {
1202                         ext_type += 5;
1203                         if (ext_type[0] == 0)
1204                                 ext_type = 0;
1205                 } else
1206                         ext_type = 0;
1207         }
1208
1209         if (!ext_type) {
1210                 profile_get_string(profile, "defaults", "fs_type", 0,
1211                                    "ext2", &profile_type);
1212                 ext_type = profile_type;
1213                 if (!strcmp(ext_type, "ext2") && (journal_size != 0))
1214                         ext_type = "ext3";
1215         }
1216
1217
1218         if (!profile_has_subsection(profile, "fs_types", ext_type) &&
1219             strcmp(ext_type, "ext2")) {
1220                 printf(_("\nYour mke2fs.conf file does not define the "
1221                          "%s filesystem type.\n"), ext_type);
1222                 if (!strcmp(ext_type, "ext3") || !strcmp(ext_type, "ext4") ||
1223                     !strcmp(ext_type, "ext4dev")) {
1224                         printf("%s", _("You probably need to install an "
1225                                        "updated mke2fs.conf file.\n\n"));
1226                 }
1227                 if (!force) {
1228                         printf("%s", _("Aborting...\n"));
1229                         exit(1);
1230                 }
1231         }
1232
1233         meg = (1024 * 1024) / EXT2_BLOCK_SIZE(sb);
1234         if (fs_blocks_count < 3 * meg)
1235                 size_type = "floppy";
1236         else if (fs_blocks_count < 512 * meg)
1237                 size_type = "small";
1238         else if (fs_blocks_count < 4 * 1024 * 1024 * meg)
1239                 size_type = "default";
1240         else if (fs_blocks_count < 16 * 1024 * 1024 * meg)
1241                 size_type = "big";
1242         else
1243                 size_type = "huge";
1244
1245         if (!usage_types)
1246                 usage_types = size_type;
1247
1248         parse_str = malloc(strlen(usage_types)+1);
1249         if (!parse_str) {
1250                 free(profile_type);
1251                 free(list.list);
1252                 return 0;
1253         }
1254         strcpy(parse_str, usage_types);
1255
1256         if (ext_type)
1257                 push_string(&list, ext_type);
1258         cp = parse_str;
1259         while (1) {
1260                 t = strchr(cp, ',');
1261                 if (t)
1262                         *t = '\0';
1263
1264                 if (*cp) {
1265                         if (profile_has_subsection(profile, "fs_types", cp))
1266                                 push_string(&list, cp);
1267                         else if (strcmp(cp, "default") != 0)
1268                                 fprintf(stderr,
1269                                         _("\nWarning: the fs_type %s is not "
1270                                           "defined in mke2fs.conf\n\n"),
1271                                         cp);
1272                 }
1273                 if (t)
1274                         cp = t+1;
1275                 else
1276                         break;
1277         }
1278         free(parse_str);
1279         free(profile_type);
1280         if (is_hurd)
1281                 push_string(&list, "hurd");
1282         return (list.list);
1283 }
1284
1285 char *get_string_from_profile(char **types, const char *opt,
1286                                      const char *def_val)
1287 {
1288         char *ret = 0;
1289         int i;
1290
1291         for (i=0; types[i]; i++);
1292         for (i-=1; i >=0 ; i--) {
1293                 profile_get_string(profile, "fs_types", types[i],
1294                                    opt, 0, &ret);
1295                 if (ret)
1296                         return ret;
1297         }
1298         profile_get_string(profile, "defaults", opt, 0, def_val, &ret);
1299         return (ret);
1300 }
1301
1302 int get_int_from_profile(char **types, const char *opt, int def_val)
1303 {
1304         int ret;
1305         char **cpp;
1306
1307         profile_get_integer(profile, "defaults", opt, 0, def_val, &ret);
1308         for (cpp = types; *cpp; cpp++)
1309                 profile_get_integer(profile, "fs_types", *cpp, opt, ret, &ret);
1310         return ret;
1311 }
1312
1313 static unsigned int get_uint_from_profile(char **types, const char *opt,
1314                                         unsigned int def_val)
1315 {
1316         unsigned int ret;
1317         char **cpp;
1318
1319         profile_get_uint(profile, "defaults", opt, 0, def_val, &ret);
1320         for (cpp = types; *cpp; cpp++)
1321                 profile_get_uint(profile, "fs_types", *cpp, opt, ret, &ret);
1322         return ret;
1323 }
1324
1325 static double get_double_from_profile(char **types, const char *opt,
1326                                       double def_val)
1327 {
1328         double ret;
1329         char **cpp;
1330
1331         profile_get_double(profile, "defaults", opt, 0, def_val, &ret);
1332         for (cpp = types; *cpp; cpp++)
1333                 profile_get_double(profile, "fs_types", *cpp, opt, ret, &ret);
1334         return ret;
1335 }
1336
1337 int get_bool_from_profile(char **types, const char *opt, int def_val)
1338 {
1339         int ret;
1340         char **cpp;
1341
1342         profile_get_boolean(profile, "defaults", opt, 0, def_val, &ret);
1343         for (cpp = types; *cpp; cpp++)
1344                 profile_get_boolean(profile, "fs_types", *cpp, opt, ret, &ret);
1345         return ret;
1346 }
1347
1348 extern const char *mke2fs_default_profile;
1349 static const char *default_files[] = { "<default>", 0 };
1350
1351 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
1352 /*
1353  * Sets the geometry of a device (stripe/stride), and returns the
1354  * device's alignment offset, if any, or a negative error.
1355  */
1356 static int get_device_geometry(const char *file,
1357                                struct ext2_super_block *fs_param,
1358                                int psector_size)
1359 {
1360         int rc = -1;
1361         int blocksize;
1362         blkid_probe pr;
1363         blkid_topology tp;
1364         unsigned long min_io;
1365         unsigned long opt_io;
1366         struct stat statbuf;
1367
1368         /* Nothing to do for a regular file */
1369         if (!stat(file, &statbuf) && S_ISREG(statbuf.st_mode))
1370                 return 0;
1371
1372         pr = blkid_new_probe_from_filename(file);
1373         if (!pr)
1374                 goto out;
1375
1376         tp = blkid_probe_get_topology(pr);
1377         if (!tp)
1378                 goto out;
1379
1380         min_io = blkid_topology_get_minimum_io_size(tp);
1381         opt_io = blkid_topology_get_optimal_io_size(tp);
1382         blocksize = EXT2_BLOCK_SIZE(fs_param);
1383         if ((min_io == 0) && (psector_size > blocksize))
1384                 min_io = psector_size;
1385         if ((opt_io == 0) && min_io)
1386                 opt_io = min_io;
1387         if ((opt_io == 0) && (psector_size > blocksize))
1388                 opt_io = psector_size;
1389
1390         /* setting stripe/stride to blocksize is pointless */
1391         if (min_io > blocksize)
1392                 fs_param->s_raid_stride = min_io / blocksize;
1393         if (opt_io > blocksize)
1394                 fs_param->s_raid_stripe_width = opt_io / blocksize;
1395
1396         rc = blkid_topology_get_alignment_offset(tp);
1397 out:
1398         blkid_free_probe(pr);
1399         return rc;
1400 }
1401 #endif
1402
1403 static void PRS(int argc, char *argv[])
1404 {
1405         int             b, c, flags;
1406         int             cluster_size = 0;
1407         char            *tmp, **cpp;
1408         int             blocksize = 0;
1409         int             inode_ratio = 0;
1410         int             inode_size = 0;
1411         unsigned long   flex_bg_size = 0;
1412         double          reserved_ratio = -1.0;
1413         int             lsector_size = 0, psector_size = 0;
1414         int             show_version_only = 0, is_device = 0;
1415         unsigned long long num_inodes = 0; /* unsigned long long to catch too-large input */
1416         errcode_t       retval;
1417         char *          oldpath = getenv("PATH");
1418         char *          extended_opts = 0;
1419         char *          fs_type = 0;
1420         char *          usage_types = 0;
1421         /*
1422          * NOTE: A few words about fs_blocks_count and blocksize:
1423          *
1424          * Initially, blocksize is set to zero, which implies 1024.
1425          * If -b is specified, blocksize is updated to the user's value.
1426          *
1427          * Next, the device size or the user's "blocks" command line argument
1428          * is used to set fs_blocks_count; the units are blocksize.
1429          *
1430          * Later, if blocksize hasn't been set and the profile specifies a
1431          * blocksize, then blocksize is updated and fs_blocks_count is scaled
1432          * appropriately.  Note the change in units!
1433          *
1434          * Finally, we complain about fs_blocks_count > 2^32 on a non-64bit fs.
1435          */
1436         blk64_t         fs_blocks_count = 0;
1437         long            sysval;
1438         int             s_opt = -1, r_opt = -1;
1439         char            *fs_features = 0;
1440         int             use_bsize;
1441         char            *newpath;
1442         int             pathlen = sizeof(PATH_SET) + 1;
1443
1444         if (oldpath)
1445                 pathlen += strlen(oldpath);
1446         newpath = malloc(pathlen);
1447         if (!newpath) {
1448                 fprintf(stderr, "%s",
1449                         _("Couldn't allocate memory for new PATH.\n"));
1450                 exit(1);
1451         }
1452         strcpy(newpath, PATH_SET);
1453
1454         /* Update our PATH to include /sbin  */
1455         if (oldpath) {
1456                 strcat (newpath, ":");
1457                 strcat (newpath, oldpath);
1458         }
1459         putenv (newpath);
1460
1461         tmp = getenv("MKE2FS_SYNC");
1462         if (tmp)
1463                 sync_kludge = atoi(tmp);
1464
1465         /* Determine the system page size if possible */
1466 #ifdef HAVE_SYSCONF
1467 #if (!defined(_SC_PAGESIZE) && defined(_SC_PAGE_SIZE))
1468 #define _SC_PAGESIZE _SC_PAGE_SIZE
1469 #endif
1470 #ifdef _SC_PAGESIZE
1471         sysval = sysconf(_SC_PAGESIZE);
1472         if (sysval > 0)
1473                 sys_page_size = sysval;
1474 #endif /* _SC_PAGESIZE */
1475 #endif /* HAVE_SYSCONF */
1476
1477         if ((tmp = getenv("MKE2FS_CONFIG")) != NULL)
1478                 config_fn[0] = tmp;
1479         profile_set_syntax_err_cb(syntax_err_report);
1480         retval = profile_init(config_fn, &profile);
1481         if (retval == ENOENT) {
1482                 retval = profile_init(default_files, &profile);
1483                 if (retval)
1484                         goto profile_error;
1485                 retval = profile_set_default(profile, mke2fs_default_profile);
1486                 if (retval)
1487                         goto profile_error;
1488         } else if (retval) {
1489 profile_error:
1490                 fprintf(stderr, _("Couldn't init profile successfully"
1491                                   " (error: %ld).\n"), retval);
1492                 exit(1);
1493         }
1494
1495         setbuf(stdout, NULL);
1496         setbuf(stderr, NULL);
1497         add_error_table(&et_ext2_error_table);
1498         add_error_table(&et_prof_error_table);
1499         memset(&fs_param, 0, sizeof(struct ext2_super_block));
1500         fs_param.s_rev_level = 1;  /* Create revision 1 filesystems now */
1501
1502         if (is_before_linux_ver(2, 2, 0))
1503                 fs_param.s_rev_level = 0;
1504
1505         if (argc && *argv) {
1506                 program_name = get_progname(*argv);
1507
1508                 /* If called as mkfs.ext3, create a journal inode */
1509                 if (!strcmp(program_name, "mkfs.ext3") ||
1510                     !strcmp(program_name, "mke3fs"))
1511                         journal_size = -1;
1512         }
1513
1514         while ((c = getopt (argc, argv,
1515                     "b:cg:i:jl:m:no:qr:s:t:vC:DE:FG:I:J:KL:M:N:O:R:ST:U:V")) != EOF) {
1516                 switch (c) {
1517                 case 'b':
1518                         blocksize = parse_num_blocks2(optarg, -1);
1519                         b = (blocksize > 0) ? blocksize : -blocksize;
1520                         if (b < EXT2_MIN_BLOCK_SIZE ||
1521                             b > EXT2_MAX_BLOCK_SIZE) {
1522                                 com_err(program_name, 0,
1523                                         _("invalid block size - %s"), optarg);
1524                                 exit(1);
1525                         }
1526                         if (blocksize > 4096)
1527                                 fprintf(stderr, _("Warning: blocksize %d not "
1528                                                   "usable on most systems.\n"),
1529                                         blocksize);
1530                         if (blocksize > 0)
1531                                 fs_param.s_log_block_size =
1532                                         int_log2(blocksize >>
1533                                                  EXT2_MIN_BLOCK_LOG_SIZE);
1534                         break;
1535                 case 'c':       /* Check for bad blocks */
1536                         cflag++;
1537                         break;
1538                 case 'C':
1539                         cluster_size = parse_num_blocks2(optarg, -1);
1540                         if (cluster_size <= EXT2_MIN_CLUSTER_SIZE ||
1541                             cluster_size > EXT2_MAX_CLUSTER_SIZE) {
1542                                 com_err(program_name, 0,
1543                                         _("invalid cluster size - %s"),
1544                                         optarg);
1545                                 exit(1);
1546                         }
1547                         break;
1548                 case 'D':
1549                         direct_io = 1;
1550                         break;
1551                 case 'R':
1552                         com_err(program_name, 0, "%s",
1553                                 _("'-R' is deprecated, use '-E' instead"));
1554                         /* fallthrough */
1555                 case 'E':
1556                         extended_opts = optarg;
1557                         break;
1558                 case 'F':
1559                         force++;
1560                         break;
1561                 case 'g':
1562                         fs_param.s_blocks_per_group = strtoul(optarg, &tmp, 0);
1563                         if (*tmp) {
1564                                 com_err(program_name, 0, "%s",
1565                                 _("Illegal number for blocks per group"));
1566                                 exit(1);
1567                         }
1568                         if ((fs_param.s_blocks_per_group % 8) != 0) {
1569                                 com_err(program_name, 0, "%s",
1570                                 _("blocks per group must be multiple of 8"));
1571                                 exit(1);
1572                         }
1573                         break;
1574                 case 'G':
1575                         flex_bg_size = strtoul(optarg, &tmp, 0);
1576                         if (*tmp) {
1577                                 com_err(program_name, 0, "%s",
1578                                         _("Illegal number for flex_bg size"));
1579                                 exit(1);
1580                         }
1581                         if (flex_bg_size < 1 ||
1582                             (flex_bg_size & (flex_bg_size-1)) != 0) {
1583                                 com_err(program_name, 0, "%s",
1584                                         _("flex_bg size must be a power of 2"));
1585                                 exit(1);
1586                         }
1587                         if (flex_bg_size > MAX_32_NUM) {
1588                                 com_err(program_name, 0,
1589                                 _("flex_bg size (%lu) must be less than"
1590                                 " or equal to 2^31"), flex_bg_size);
1591                                 exit(1);
1592                         }
1593                         break;
1594                 case 'i':
1595                         inode_ratio = strtoul(optarg, &tmp, 0);
1596                         if (inode_ratio < EXT2_MIN_BLOCK_SIZE ||
1597                             inode_ratio > EXT2_MAX_BLOCK_SIZE * 1024 ||
1598                             *tmp) {
1599                                 com_err(program_name, 0,
1600                                         _("invalid inode ratio %s (min %d/max %d)"),
1601                                         optarg, EXT2_MIN_BLOCK_SIZE,
1602                                         EXT2_MAX_BLOCK_SIZE * 1024);
1603                                 exit(1);
1604                         }
1605                         break;
1606                 case 'I':
1607                         inode_size = strtoul(optarg, &tmp, 0);
1608                         if (*tmp) {
1609                                 com_err(program_name, 0,
1610                                         _("invalid inode size - %s"), optarg);
1611                                 exit(1);
1612                         }
1613                         break;
1614                 case 'j':
1615                         if (!journal_size)
1616                                 journal_size = -1;
1617                         break;
1618                 case 'J':
1619                         parse_journal_opts(optarg);
1620                         break;
1621                 case 'K':
1622                         fprintf(stderr, "%s",
1623                                 _("Warning: -K option is deprecated and "
1624                                   "should not be used anymore. Use "
1625                                   "\'-E nodiscard\' extended option "
1626                                   "instead!\n"));
1627                         discard = 0;
1628                         break;
1629                 case 'l':
1630                         bad_blocks_filename = realloc(bad_blocks_filename,
1631                                                       strlen(optarg) + 1);
1632                         if (!bad_blocks_filename) {
1633                                 com_err(program_name, ENOMEM, "%s",
1634                                         _("in malloc for bad_blocks_filename"));
1635                                 exit(1);
1636                         }
1637                         strcpy(bad_blocks_filename, optarg);
1638                         break;
1639                 case 'L':
1640                         volume_label = optarg;
1641                         break;
1642                 case 'm':
1643                         reserved_ratio = strtod(optarg, &tmp);
1644                         if ( *tmp || reserved_ratio > 50 ||
1645                              reserved_ratio < 0) {
1646                                 com_err(program_name, 0,
1647                                         _("invalid reserved blocks percent - %s"),
1648                                         optarg);
1649                                 exit(1);
1650                         }
1651                         break;
1652                 case 'M':
1653                         mount_dir = optarg;
1654                         break;
1655                 case 'n':
1656                         noaction++;
1657                         break;
1658                 case 'N':
1659                         num_inodes = strtoul(optarg, &tmp, 0);
1660                         if (*tmp) {
1661                                 com_err(program_name, 0,
1662                                         _("bad num inodes - %s"), optarg);
1663                                         exit(1);
1664                         }
1665                         break;
1666                 case 'o':
1667                         creator_os = optarg;
1668                         break;
1669                 case 'O':
1670                         fs_features = optarg;
1671                         break;
1672                 case 'q':
1673                         quiet = 1;
1674                         break;
1675                 case 'r':
1676                         r_opt = strtoul(optarg, &tmp, 0);
1677                         if (*tmp) {
1678                                 com_err(program_name, 0,
1679                                         _("bad revision level - %s"), optarg);
1680                                 exit(1);
1681                         }
1682                         if (r_opt > EXT2_MAX_SUPP_REV) {
1683                                 com_err(program_name, EXT2_ET_REV_TOO_HIGH,
1684                                         _("while trying to create revision %d"), r_opt);
1685                                 exit(1);
1686                         }
1687                         fs_param.s_rev_level = r_opt;
1688                         break;
1689                 case 's':       /* deprecated */
1690                         s_opt = atoi(optarg);
1691                         break;
1692                 case 'S':
1693                         super_only = 1;
1694                         break;
1695                 case 't':
1696                         if (fs_type) {
1697                                 com_err(program_name, 0, "%s",
1698                                     _("The -t option may only be used once"));
1699                                 exit(1);
1700                         }
1701                         fs_type = strdup(optarg);
1702                         break;
1703                 case 'T':
1704                         if (usage_types) {
1705                                 com_err(program_name, 0, "%s",
1706                                     _("The -T option may only be used once"));
1707                                 exit(1);
1708                         }
1709                         usage_types = strdup(optarg);
1710                         break;
1711                 case 'U':
1712                         fs_uuid = optarg;
1713                         break;
1714                 case 'v':
1715                         verbose = 1;
1716                         break;
1717                 case 'V':
1718                         /* Print version number and exit */
1719                         show_version_only++;
1720                         break;
1721                 default:
1722                         usage();
1723                 }
1724         }
1725         if ((optind == argc) && !show_version_only)
1726                 usage();
1727         device_name = argv[optind++];
1728
1729         if (!quiet || show_version_only)
1730                 fprintf (stderr, "mke2fs %s (%s)\n", E2FSPROGS_VERSION,
1731                          E2FSPROGS_DATE);
1732
1733         if (show_version_only) {
1734                 fprintf(stderr, _("\tUsing %s\n"),
1735                         error_message(EXT2_ET_BASE));
1736                 exit(0);
1737         }
1738
1739         /*
1740          * If there's no blocksize specified and there is a journal
1741          * device, use it to figure out the blocksize
1742          */
1743         if (blocksize <= 0 && journal_device) {
1744                 ext2_filsys     jfs;
1745                 io_manager      io_ptr;
1746
1747 #ifdef CONFIG_TESTIO_DEBUG
1748                 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
1749                         io_ptr = test_io_manager;
1750                         test_io_backing_manager = unix_io_manager;
1751                 } else
1752 #endif
1753                         io_ptr = unix_io_manager;
1754                 retval = ext2fs_open(journal_device,
1755                                      EXT2_FLAG_JOURNAL_DEV_OK, 0,
1756                                      0, io_ptr, &jfs);
1757                 if (retval) {
1758                         com_err(program_name, retval,
1759                                 _("while trying to open journal device %s\n"),
1760                                 journal_device);
1761                         exit(1);
1762                 }
1763                 if ((blocksize < 0) && (jfs->blocksize < (unsigned) (-blocksize))) {
1764                         com_err(program_name, 0,
1765                                 _("Journal dev blocksize (%d) smaller than "
1766                                   "minimum blocksize %d\n"), jfs->blocksize,
1767                                 -blocksize);
1768                         exit(1);
1769                 }
1770                 blocksize = jfs->blocksize;
1771                 printf(_("Using journal device's blocksize: %d\n"), blocksize);
1772                 fs_param.s_log_block_size =
1773                         int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
1774                 ext2fs_close_free(&jfs);
1775         }
1776
1777         if (optind < argc) {
1778                 fs_blocks_count = parse_num_blocks2(argv[optind++],
1779                                                    fs_param.s_log_block_size);
1780                 if (!fs_blocks_count) {
1781                         com_err(program_name, 0,
1782                                 _("invalid blocks '%s' on device '%s'"),
1783                                 argv[optind - 1], device_name);
1784                         exit(1);
1785                 }
1786         }
1787         if (optind < argc)
1788                 usage();
1789
1790         profile_get_integer(profile, "options", "proceed_delay", 0, 0,
1791                             &proceed_delay);
1792
1793         /* The isatty() test is so we don't break existing scripts */
1794         flags = CREATE_FILE;
1795         if (isatty(0) && isatty(1))
1796                 flags |= CHECK_FS_EXIST;
1797         if (!quiet)
1798                 flags |= VERBOSE_CREATE;
1799         if (fs_blocks_count == 0)
1800                 flags |= NO_SIZE;
1801         if (!check_plausibility(device_name, flags, &is_device) && !force)
1802                 proceed_question(proceed_delay);
1803
1804         check_mount(device_name, force, _("filesystem"));
1805
1806         /* Determine the size of the device (if possible) */
1807         if (noaction && fs_blocks_count) {
1808                 dev_size = fs_blocks_count;
1809                 retval = 0;
1810         } else
1811                 retval = ext2fs_get_device_size2(device_name,
1812                                                  EXT2_BLOCK_SIZE(&fs_param),
1813                                                  &dev_size);
1814
1815         if (retval && (retval != EXT2_ET_UNIMPLEMENTED)) {
1816                 com_err(program_name, retval, "%s",
1817                         _("while trying to determine filesystem size"));
1818                 exit(1);
1819         }
1820         if (!fs_blocks_count) {
1821                 if (retval == EXT2_ET_UNIMPLEMENTED) {
1822                         com_err(program_name, 0, "%s",
1823                                 _("Couldn't determine device size; you "
1824                                 "must specify\nthe size of the "
1825                                 "filesystem\n"));
1826                         exit(1);
1827                 } else {
1828                         if (dev_size == 0) {
1829                                 com_err(program_name, 0, "%s",
1830                                 _("Device size reported to be zero.  "
1831                                   "Invalid partition specified, or\n\t"
1832                                   "partition table wasn't reread "
1833                                   "after running fdisk, due to\n\t"
1834                                   "a modified partition being busy "
1835                                   "and in use.  You may need to reboot\n\t"
1836                                   "to re-read your partition table.\n"
1837                                   ));
1838                                 exit(1);
1839                         }
1840                         fs_blocks_count = dev_size;
1841                         if (sys_page_size > EXT2_BLOCK_SIZE(&fs_param))
1842                                 fs_blocks_count &= ~((blk64_t) ((sys_page_size /
1843                                              EXT2_BLOCK_SIZE(&fs_param))-1));
1844                 }
1845         } else if (!force && is_device && (fs_blocks_count > dev_size)) {
1846                 com_err(program_name, 0, "%s",
1847                         _("Filesystem larger than apparent device size."));
1848                 proceed_question(proceed_delay);
1849         }
1850
1851         if (!fs_type)
1852                 profile_get_string(profile, "devices", device_name,
1853                                    "fs_type", 0, &fs_type);
1854         if (!usage_types)
1855                 profile_get_string(profile, "devices", device_name,
1856                                    "usage_types", 0, &usage_types);
1857
1858         /*
1859          * We have the file system (or device) size, so we can now
1860          * determine the appropriate file system types so the fs can
1861          * be appropriately configured.
1862          */
1863         fs_types = parse_fs_type(fs_type, usage_types, &fs_param,
1864                                  fs_blocks_count ? fs_blocks_count : dev_size,
1865                                  argv[0]);
1866         if (!fs_types) {
1867                 fprintf(stderr, "%s", _("Failed to parse fs types list\n"));
1868                 exit(1);
1869         }
1870
1871         /* Figure out what features should be enabled */
1872
1873         tmp = NULL;
1874         if (fs_param.s_rev_level != EXT2_GOOD_OLD_REV) {
1875                 tmp = get_string_from_profile(fs_types, "base_features",
1876                       "sparse_super,large_file,filetype,resize_inode,dir_index");
1877                 edit_feature(tmp, &fs_param.s_feature_compat);
1878                 free(tmp);
1879
1880                 /* And which mount options as well */
1881                 tmp = get_string_from_profile(fs_types, "default_mntopts",
1882                                               "acl,user_xattr");
1883                 edit_mntopts(tmp, &fs_param.s_default_mount_opts);
1884                 if (tmp)
1885                         free(tmp);
1886
1887                 for (cpp = fs_types; *cpp; cpp++) {
1888                         tmp = NULL;
1889                         profile_get_string(profile, "fs_types", *cpp,
1890                                            "features", "", &tmp);
1891                         if (tmp && *tmp)
1892                                 edit_feature(tmp, &fs_param.s_feature_compat);
1893                         if (tmp)
1894                                 free(tmp);
1895                 }
1896                 tmp = get_string_from_profile(fs_types, "default_features",
1897                                               "");
1898         }
1899         edit_feature(fs_features ? fs_features : tmp,
1900                      &fs_param.s_feature_compat);
1901         if (tmp)
1902                 free(tmp);
1903
1904         /* Get the hardware sector sizes, if available */
1905         retval = ext2fs_get_device_sectsize(device_name, &lsector_size);
1906         if (retval) {
1907                 com_err(program_name, retval, "%s",
1908                         _("while trying to determine hardware sector size"));
1909                 exit(1);
1910         }
1911         retval = ext2fs_get_device_phys_sectsize(device_name, &psector_size);
1912         if (retval) {
1913                 com_err(program_name, retval, "%s",
1914                         _("while trying to determine physical sector size"));
1915                 exit(1);
1916         }
1917
1918         tmp = getenv("MKE2FS_DEVICE_SECTSIZE");
1919         if (tmp != NULL)
1920                 lsector_size = atoi(tmp);
1921         tmp = getenv("MKE2FS_DEVICE_PHYS_SECTSIZE");
1922         if (tmp != NULL)
1923                 psector_size = atoi(tmp);
1924
1925         /* Older kernels may not have physical/logical distinction */
1926         if (!psector_size)
1927                 psector_size = lsector_size;
1928
1929         if (blocksize <= 0) {
1930                 use_bsize = get_int_from_profile(fs_types, "blocksize", 4096);
1931
1932                 if (use_bsize == -1) {
1933                         use_bsize = sys_page_size;
1934                         if (is_before_linux_ver(2, 6, 0) && use_bsize > 4096)
1935                                 use_bsize = 4096;
1936                 }
1937                 if (lsector_size && use_bsize < lsector_size)
1938                         use_bsize = lsector_size;
1939                 if ((blocksize < 0) && (use_bsize < (-blocksize)))
1940                         use_bsize = -blocksize;
1941                 blocksize = use_bsize;
1942                 fs_blocks_count /= (blocksize / 1024);
1943         } else {
1944                 if (blocksize < lsector_size) {                 /* Impossible */
1945                         com_err(program_name, EINVAL, "%s",
1946                                 _("while setting blocksize; too small "
1947                                   "for device\n"));
1948                         exit(1);
1949                 } else if ((blocksize < psector_size) &&
1950                            (psector_size <= sys_page_size)) {   /* Suboptimal */
1951                         fprintf(stderr, _("Warning: specified blocksize %d is "
1952                                 "less than device physical sectorsize %d\n"),
1953                                 blocksize, psector_size);
1954                 }
1955         }
1956
1957         fs_param.s_log_block_size =
1958                 int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
1959
1960         /*
1961          * We now need to do a sanity check of fs_blocks_count for
1962          * 32-bit vs 64-bit block number support.
1963          */
1964         if ((fs_blocks_count > MAX_32_NUM) &&
1965             (fs_param.s_feature_incompat & EXT4_FEATURE_INCOMPAT_64BIT))
1966                 fs_param.s_feature_compat &= ~EXT2_FEATURE_COMPAT_RESIZE_INODE;
1967         if ((fs_blocks_count > MAX_32_NUM) &&
1968             !(fs_param.s_feature_incompat & EXT4_FEATURE_INCOMPAT_64BIT) &&
1969             get_bool_from_profile(fs_types, "auto_64-bit_support", 0)) {
1970                 fs_param.s_feature_incompat |= EXT4_FEATURE_INCOMPAT_64BIT;
1971                 fs_param.s_feature_compat &= ~EXT2_FEATURE_COMPAT_RESIZE_INODE;
1972         }
1973         if ((fs_blocks_count > MAX_32_NUM) &&
1974             !(fs_param.s_feature_incompat & EXT4_FEATURE_INCOMPAT_64BIT)) {
1975                 fprintf(stderr, _("%s: Size of device (0x%llx blocks) %s "
1976                                   "too big to be expressed\n\t"
1977                                   "in 32 bits using a blocksize of %d.\n"),
1978                         program_name, fs_blocks_count, device_name,
1979                         EXT2_BLOCK_SIZE(&fs_param));
1980                 exit(1);
1981         }
1982
1983         ext2fs_blocks_count_set(&fs_param, fs_blocks_count);
1984
1985         if (fs_param.s_feature_incompat & EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) {
1986                 fs_types[0] = strdup("journal");
1987                 fs_types[1] = 0;
1988         }
1989
1990         if (verbose) {
1991                 fputs(_("fs_types for mke2fs.conf resolution: "), stdout);
1992                 print_str_list(fs_types);
1993         }
1994
1995         if (r_opt == EXT2_GOOD_OLD_REV &&
1996             (fs_param.s_feature_compat || fs_param.s_feature_incompat ||
1997              fs_param.s_feature_ro_compat)) {
1998                 fprintf(stderr, "%s", _("Filesystem features not supported "
1999                                         "with revision 0 filesystems\n"));
2000                 exit(1);
2001         }
2002
2003         if (s_opt > 0) {
2004                 if (r_opt == EXT2_GOOD_OLD_REV) {
2005                         fprintf(stderr, "%s",
2006                                 _("Sparse superblocks not supported "
2007                                   "with revision 0 filesystems\n"));
2008                         exit(1);
2009                 }
2010                 fs_param.s_feature_ro_compat |=
2011                         EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
2012         } else if (s_opt == 0)
2013                 fs_param.s_feature_ro_compat &=
2014                         ~EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
2015
2016         if (journal_size != 0) {
2017                 if (r_opt == EXT2_GOOD_OLD_REV) {
2018                         fprintf(stderr, "%s", _("Journals not supported with "
2019                                                 "revision 0 filesystems\n"));
2020                         exit(1);
2021                 }
2022                 fs_param.s_feature_compat |=
2023                         EXT3_FEATURE_COMPAT_HAS_JOURNAL;
2024         }
2025
2026         /* Get reserved_ratio from profile if not specified on cmd line. */
2027         if (reserved_ratio < 0.0) {
2028                 reserved_ratio = get_double_from_profile(
2029                                         fs_types, "reserved_ratio", 5.0);
2030                 if (reserved_ratio > 50 || reserved_ratio < 0) {
2031                         com_err(program_name, 0,
2032                                 _("invalid reserved blocks percent - %lf"),
2033                                 reserved_ratio);
2034                         exit(1);
2035                 }
2036         }
2037
2038         if (fs_param.s_feature_incompat &
2039             EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) {
2040                 reserved_ratio = 0;
2041                 fs_param.s_feature_incompat = EXT3_FEATURE_INCOMPAT_JOURNAL_DEV;
2042                 fs_param.s_feature_compat = 0;
2043                 fs_param.s_feature_ro_compat = 0;
2044         }
2045
2046         /* Check the user's mkfs options for 64bit */
2047         if ((fs_param.s_feature_incompat & EXT4_FEATURE_INCOMPAT_64BIT) &&
2048             !(fs_param.s_feature_incompat & EXT3_FEATURE_INCOMPAT_EXTENTS)) {
2049                 printf("%s", _("Extents MUST be enabled for a 64-bit "
2050                                "filesystem.  Pass -O extents to rectify.\n"));
2051                 exit(1);
2052         }
2053
2054         /* Set first meta blockgroup via an environment variable */
2055         /* (this is mostly for debugging purposes) */
2056         if ((fs_param.s_feature_incompat & EXT2_FEATURE_INCOMPAT_META_BG) &&
2057             ((tmp = getenv("MKE2FS_FIRST_META_BG"))))
2058                 fs_param.s_first_meta_bg = atoi(tmp);
2059         if (fs_param.s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_BIGALLOC) {
2060                 if (!cluster_size)
2061                         cluster_size = get_int_from_profile(fs_types,
2062                                                             "cluster_size",
2063                                                             blocksize*16);
2064                 fs_param.s_log_cluster_size =
2065                         int_log2(cluster_size >> EXT2_MIN_CLUSTER_LOG_SIZE);
2066                 if (fs_param.s_log_cluster_size &&
2067                     fs_param.s_log_cluster_size < fs_param.s_log_block_size) {
2068                         com_err(program_name, 0, "%s",
2069                                 _("The cluster size may not be "
2070                                   "smaller than the block size.\n"));
2071                         exit(1);
2072                 }
2073         } else if (cluster_size) {
2074                 com_err(program_name, 0, "%s",
2075                         _("specifying a cluster size requires the "
2076                           "bigalloc feature"));
2077                 exit(1);
2078         } else
2079                 fs_param.s_log_cluster_size = fs_param.s_log_block_size;
2080
2081         if (inode_ratio == 0) {
2082                 inode_ratio = get_int_from_profile(fs_types, "inode_ratio",
2083                                                    8192);
2084                 if (inode_ratio < blocksize)
2085                         inode_ratio = blocksize;
2086                 if (inode_ratio < EXT2_CLUSTER_SIZE(&fs_param))
2087                         inode_ratio = EXT2_CLUSTER_SIZE(&fs_param);
2088         }
2089
2090 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
2091         retval = get_device_geometry(device_name, &fs_param, psector_size);
2092         if (retval < 0) {
2093                 fprintf(stderr,
2094                         _("warning: Unable to get device geometry for %s\n"),
2095                         device_name);
2096         } else if (retval) {
2097                 printf(_("%s alignment is offset by %lu bytes.\n"),
2098                        device_name, retval);
2099                 printf(_("This may result in very poor performance, "
2100                           "(re)-partitioning suggested.\n"));
2101         }
2102 #endif
2103
2104         num_backups = get_int_from_profile(fs_types, "num_backup_sb", 2);
2105
2106         blocksize = EXT2_BLOCK_SIZE(&fs_param);
2107
2108         /*
2109          * Initialize s_desc_size so that the parse_extended_opts()
2110          * can correctly handle "-E resize=NNN" if the 64-bit option
2111          * is set.
2112          */
2113         if (fs_param.s_feature_incompat & EXT4_FEATURE_INCOMPAT_64BIT)
2114                 fs_param.s_desc_size = EXT2_MIN_DESC_SIZE_64BIT;
2115
2116         /* This check should happen beyond the last assignment to blocksize */
2117         if (blocksize > sys_page_size) {
2118                 if (!force) {
2119                         com_err(program_name, 0,
2120                                 _("%d-byte blocks too big for system (max %d)"),
2121                                 blocksize, sys_page_size);
2122                         proceed_question(proceed_delay);
2123                 }
2124                 fprintf(stderr, _("Warning: %d-byte blocks too big for system "
2125                                   "(max %d), forced to continue\n"),
2126                         blocksize, sys_page_size);
2127         }
2128
2129         /*
2130          * On newer kernels we do have lazy_itable_init support. So pick the
2131          * right default in case ext4 module is not loaded.
2132          */
2133         if (is_before_linux_ver(2, 6, 37))
2134                 lazy_itable_init = 0;
2135         else
2136                 lazy_itable_init = 1;
2137
2138         if (access("/sys/fs/ext4/features/lazy_itable_init", R_OK) == 0)
2139                 lazy_itable_init = 1;
2140
2141         lazy_itable_init = get_bool_from_profile(fs_types,
2142                                                  "lazy_itable_init",
2143                                                  lazy_itable_init);
2144         discard = get_bool_from_profile(fs_types, "discard" , discard);
2145         journal_flags |= get_bool_from_profile(fs_types,
2146                                                "lazy_journal_init", 0) ?
2147                                                EXT2_MKJOURNAL_LAZYINIT : 0;
2148         journal_flags |= EXT2_MKJOURNAL_NO_MNT_CHECK;
2149
2150         if (!journal_location_string)
2151                 journal_location_string = get_string_from_profile(fs_types,
2152                                                 "journal_location", "");
2153         if ((journal_location == ~0ULL) && journal_location_string &&
2154             *journal_location_string)
2155                 journal_location = parse_num_blocks2(journal_location_string,
2156                                                 fs_param.s_log_block_size);
2157         free(journal_location_string);
2158
2159         packed_meta_blocks = get_bool_from_profile(fs_types,
2160                                                    "packed_meta_blocks", 0);
2161         if (packed_meta_blocks)
2162                 journal_location = 0;
2163
2164         /* Get options from profile */
2165         for (cpp = fs_types; *cpp; cpp++) {
2166                 tmp = NULL;
2167                 profile_get_string(profile, "fs_types", *cpp, "options", "", &tmp);
2168                         if (tmp && *tmp)
2169                                 parse_extended_opts(&fs_param, tmp);
2170                         free(tmp);
2171         }
2172
2173         if (extended_opts)
2174                 parse_extended_opts(&fs_param, extended_opts);
2175
2176         /* Can't support bigalloc feature without extents feature */
2177         if ((fs_param.s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_BIGALLOC) &&
2178             !(fs_param.s_feature_incompat & EXT3_FEATURE_INCOMPAT_EXTENTS)) {
2179                 com_err(program_name, 0, "%s",
2180                         _("Can't support bigalloc feature without "
2181                           "extents feature"));
2182                 exit(1);
2183         }
2184
2185         if ((fs_param.s_feature_incompat & EXT2_FEATURE_INCOMPAT_META_BG) &&
2186             (fs_param.s_feature_compat & EXT2_FEATURE_COMPAT_RESIZE_INODE)) {
2187                 fprintf(stderr, "%s", _("The resize_inode and meta_bg "
2188                                         "features are not compatible.\n"
2189                                         "They can not be both enabled "
2190                                         "simultaneously.\n"));
2191                 exit(1);
2192         }
2193
2194         if (!quiet &&
2195             (fs_param.s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_BIGALLOC))
2196                 fprintf(stderr, "%s", _("\nWarning: the bigalloc feature is "
2197                                   "still under development\n"
2198                                   "See https://ext4.wiki.kernel.org/"
2199                                   "index.php/Bigalloc for more information\n\n"));
2200
2201         /* Since sparse_super is the default, we would only have a problem
2202          * here if it was explicitly disabled.
2203          */
2204         if ((fs_param.s_feature_compat & EXT2_FEATURE_COMPAT_RESIZE_INODE) &&
2205             !(fs_param.s_feature_ro_compat&EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER)) {
2206                 com_err(program_name, 0, "%s",
2207                         _("reserved online resize blocks not supported "
2208                           "on non-sparse filesystem"));
2209                 exit(1);
2210         }
2211
2212         if (fs_param.s_blocks_per_group) {
2213                 if (fs_param.s_blocks_per_group < 256 ||
2214                     fs_param.s_blocks_per_group > 8 * (unsigned) blocksize) {
2215                         com_err(program_name, 0, "%s",
2216                                 _("blocks per group count out of range"));
2217                         exit(1);
2218                 }
2219         }
2220
2221         /*
2222          * If the bigalloc feature is enabled, then the -g option will
2223          * specify the number of clusters per group.
2224          */
2225         if (fs_param.s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_BIGALLOC) {
2226                 fs_param.s_clusters_per_group = fs_param.s_blocks_per_group;
2227                 fs_param.s_blocks_per_group = 0;
2228         }
2229
2230         if (inode_size == 0)
2231                 inode_size = get_int_from_profile(fs_types, "inode_size", 0);
2232         if (!flex_bg_size && (fs_param.s_feature_incompat &
2233                               EXT4_FEATURE_INCOMPAT_FLEX_BG))
2234                 flex_bg_size = get_uint_from_profile(fs_types,
2235                                                      "flex_bg_size", 16);
2236         if (flex_bg_size) {
2237                 if (!(fs_param.s_feature_incompat &
2238                       EXT4_FEATURE_INCOMPAT_FLEX_BG)) {
2239                         com_err(program_name, 0, "%s",
2240                                 _("Flex_bg feature not enabled, so "
2241                                   "flex_bg size may not be specified"));
2242                         exit(1);
2243                 }
2244                 fs_param.s_log_groups_per_flex = int_log2(flex_bg_size);
2245         }
2246
2247         if (inode_size && fs_param.s_rev_level >= EXT2_DYNAMIC_REV) {
2248                 if (inode_size < EXT2_GOOD_OLD_INODE_SIZE ||
2249                     inode_size > EXT2_BLOCK_SIZE(&fs_param) ||
2250                     inode_size & (inode_size - 1)) {
2251                         com_err(program_name, 0,
2252                                 _("invalid inode size %d (min %d/max %d)"),
2253                                 inode_size, EXT2_GOOD_OLD_INODE_SIZE,
2254                                 blocksize);
2255                         exit(1);
2256                 }
2257                 fs_param.s_inode_size = inode_size;
2258         }
2259
2260         /* Make sure number of inodes specified will fit in 32 bits */
2261         if (num_inodes == 0) {
2262                 unsigned long long n;
2263                 n = ext2fs_blocks_count(&fs_param) * blocksize / inode_ratio;
2264                 if (n > MAX_32_NUM) {
2265                         if (fs_param.s_feature_incompat &
2266                             EXT4_FEATURE_INCOMPAT_64BIT)
2267                                 num_inodes = MAX_32_NUM;
2268                         else {
2269                                 com_err(program_name, 0,
2270                                         _("too many inodes (%llu), raise "
2271                                           "inode ratio?"), n);
2272                                 exit(1);
2273                         }
2274                 }
2275         } else if (num_inodes > MAX_32_NUM) {
2276                 com_err(program_name, 0,
2277                         _("too many inodes (%llu), specify < 2^32 inodes"),
2278                           num_inodes);
2279                 exit(1);
2280         }
2281         /*
2282          * Calculate number of inodes based on the inode ratio
2283          */
2284         fs_param.s_inodes_count = num_inodes ? num_inodes :
2285                 (ext2fs_blocks_count(&fs_param) * blocksize) / inode_ratio;
2286
2287         if ((((unsigned long long)fs_param.s_inodes_count) *
2288              (inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE)) >=
2289             ((ext2fs_blocks_count(&fs_param)) *
2290              EXT2_BLOCK_SIZE(&fs_param))) {
2291                 com_err(program_name, 0, _("inode_size (%u) * inodes_count "
2292                                           "(%u) too big for a\n\t"
2293                                           "filesystem with %llu blocks, "
2294                                           "specify higher inode_ratio (-i)\n\t"
2295                                           "or lower inode count (-N).\n"),
2296                         inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE,
2297                         fs_param.s_inodes_count,
2298                         (unsigned long long) ext2fs_blocks_count(&fs_param));
2299                 exit(1);
2300         }
2301
2302         /*
2303          * Calculate number of blocks to reserve
2304          */
2305         ext2fs_r_blocks_count_set(&fs_param, reserved_ratio *
2306                                   ext2fs_blocks_count(&fs_param) / 100.0);
2307
2308         if (fs_param.s_feature_compat & EXT4_FEATURE_COMPAT_SPARSE_SUPER2) {
2309                 if (num_backups >= 1)
2310                         fs_param.s_backup_bgs[0] = 1;
2311                 if (num_backups >= 2)
2312                         fs_param.s_backup_bgs[1] = ~0;
2313         }
2314
2315         free(fs_type);
2316         free(usage_types);
2317 }
2318
2319 static int should_do_undo(const char *name)
2320 {
2321         errcode_t retval;
2322         io_channel channel;
2323         __u16   s_magic;
2324         struct ext2_super_block super;
2325         io_manager manager = unix_io_manager;
2326         int csum_flag, force_undo;
2327
2328         csum_flag = EXT2_HAS_RO_COMPAT_FEATURE(&fs_param,
2329                                                EXT4_FEATURE_RO_COMPAT_GDT_CSUM);
2330         force_undo = get_int_from_profile(fs_types, "force_undo", 0);
2331         if (!force_undo && (!csum_flag || !lazy_itable_init))
2332                 return 0;
2333
2334         retval = manager->open(name, IO_FLAG_EXCLUSIVE,  &channel);
2335         if (retval) {
2336                 /*
2337                  * We don't handle error cases instead we
2338                  * declare that the file system doesn't exist
2339                  * and let the rest of mke2fs take care of
2340                  * error
2341                  */
2342                 retval = 0;
2343                 goto open_err_out;
2344         }
2345
2346         io_channel_set_blksize(channel, SUPERBLOCK_OFFSET);
2347         retval = io_channel_read_blk64(channel, 1, -SUPERBLOCK_SIZE, &super);
2348         if (retval) {
2349                 retval = 0;
2350                 goto err_out;
2351         }
2352
2353 #if defined(WORDS_BIGENDIAN)
2354         s_magic = ext2fs_swab16(super.s_magic);
2355 #else
2356         s_magic = super.s_magic;
2357 #endif
2358
2359         if (s_magic == EXT2_SUPER_MAGIC)
2360                 retval = 1;
2361
2362 err_out:
2363         io_channel_close(channel);
2364
2365 open_err_out:
2366
2367         return retval;
2368 }
2369
2370 static int mke2fs_setup_tdb(const char *name, io_manager *io_ptr)
2371 {
2372         errcode_t retval = ENOMEM;
2373         char *tdb_dir = NULL, *tdb_file = NULL;
2374         char *dev_name, *tmp_name;
2375         int free_tdb_dir = 0;
2376
2377         /*
2378          * Configuration via a conf file would be
2379          * nice
2380          */
2381         tdb_dir = getenv("E2FSPROGS_UNDO_DIR");
2382         if (!tdb_dir) {
2383                 profile_get_string(profile, "defaults",
2384                                    "undo_dir", 0, "/var/lib/e2fsprogs",
2385                                    &tdb_dir);
2386                 free_tdb_dir = 1;
2387         }
2388
2389         if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
2390             access(tdb_dir, W_OK)) {
2391                 if (free_tdb_dir)
2392                         free(tdb_dir);
2393                 return 0;
2394         }
2395
2396         tmp_name = strdup(name);
2397         if (!tmp_name)
2398                 goto errout;
2399         dev_name = basename(tmp_name);
2400         tdb_file = malloc(strlen(tdb_dir) + 8 + strlen(dev_name) + 7 + 1);
2401         if (!tdb_file) {
2402                 free(tmp_name);
2403                 goto errout;
2404         }
2405         sprintf(tdb_file, "%s/mke2fs-%s.e2undo", tdb_dir, dev_name);
2406         free(tmp_name);
2407
2408         if ((unlink(tdb_file) < 0) && (errno != ENOENT)) {
2409                 retval = errno;
2410                 goto errout;
2411         }
2412
2413         set_undo_io_backing_manager(*io_ptr);
2414         *io_ptr = undo_io_manager;
2415         retval = set_undo_io_backup_file(tdb_file);
2416         if (retval)
2417                 goto errout;
2418         printf(_("Overwriting existing filesystem; this can be undone "
2419                  "using the command:\n"
2420                  "    e2undo %s %s\n\n"), tdb_file, name);
2421
2422         if (free_tdb_dir)
2423                 free(tdb_dir);
2424         free(tdb_file);
2425         return 0;
2426
2427 errout:
2428         if (free_tdb_dir)
2429                 free(tdb_dir);
2430         free(tdb_file);
2431         com_err(program_name, retval, "%s",
2432                 _("while trying to setup undo file\n"));
2433         return retval;
2434 }
2435
2436 static int mke2fs_discard_device(ext2_filsys fs)
2437 {
2438         struct ext2fs_numeric_progress_struct progress;
2439         blk64_t blocks = ext2fs_blocks_count(fs->super);
2440         blk64_t count = DISCARD_STEP_MB;
2441         blk64_t cur;
2442         int retval = 0;
2443
2444         /*
2445          * Let's try if discard really works on the device, so
2446          * we do not print numeric progress resulting in failure
2447          * afterwards.
2448          */
2449         retval = io_channel_discard(fs->io, 0, fs->blocksize);
2450         if (retval)
2451                 return retval;
2452         cur = fs->blocksize;
2453
2454         count *= (1024 * 1024);
2455         count /= fs->blocksize;
2456
2457         ext2fs_numeric_progress_init(fs, &progress,
2458                                      _("Discarding device blocks: "),
2459                                      blocks);
2460         while (cur < blocks) {
2461                 ext2fs_numeric_progress_update(fs, &progress, cur);
2462
2463                 if (cur + count > blocks)
2464                         count = blocks - cur;
2465
2466                 retval = io_channel_discard(fs->io, cur, count);
2467                 if (retval)
2468                         break;
2469                 cur += count;
2470         }
2471
2472         if (retval) {
2473                 ext2fs_numeric_progress_close(fs, &progress,
2474                                       _("failed - "));
2475                 if (!quiet)
2476                         printf("%s\n",error_message(retval));
2477         } else
2478                 ext2fs_numeric_progress_close(fs, &progress,
2479                                       _("done                            \n"));
2480
2481         return retval;
2482 }
2483
2484 static void fix_cluster_bg_counts(ext2_filsys fs)
2485 {
2486         blk64_t         block, num_blocks, last_block, next;
2487         blk64_t         tot_free = 0;
2488         errcode_t       retval;
2489         dgrp_t          group = 0;
2490         int             grp_free = 0;
2491
2492         num_blocks = ext2fs_blocks_count(fs->super);
2493         last_block = ext2fs_group_last_block2(fs, group);
2494         block = fs->super->s_first_data_block;
2495         while (block < num_blocks) {
2496                 retval = ext2fs_find_first_zero_block_bitmap2(fs->block_map,
2497                                                 block, last_block, &next);
2498                 if (retval == 0)
2499                         block = next;
2500                 else {
2501                         block = last_block + 1;
2502                         goto next_bg;
2503                 }
2504
2505                 retval = ext2fs_find_first_set_block_bitmap2(fs->block_map,
2506                                                 block, last_block, &next);
2507                 if (retval)
2508                         next = last_block + 1;
2509                 grp_free += EXT2FS_NUM_B2C(fs, next - block);
2510                 tot_free += next - block;
2511                 block = next;
2512
2513                 if (block > last_block) {
2514                 next_bg:
2515                         ext2fs_bg_free_blocks_count_set(fs, group, grp_free);
2516                         ext2fs_group_desc_csum_set(fs, group);
2517                         grp_free = 0;
2518                         group++;
2519                         last_block = ext2fs_group_last_block2(fs, group);
2520                 }
2521         }
2522         ext2fs_free_blocks_count_set(fs->super, tot_free);
2523 }
2524
2525 static int create_quota_inodes(ext2_filsys fs)
2526 {
2527         quota_ctx_t qctx;
2528
2529         quota_init_context(&qctx, fs, -1);
2530         quota_compute_usage(qctx);
2531         quota_write_inode(qctx, quotatype);
2532         quota_release_context(&qctx);
2533
2534         return 0;
2535 }
2536
2537 int main (int argc, char *argv[])
2538 {
2539         errcode_t       retval = 0;
2540         ext2_filsys     fs;
2541         badblocks_list  bb_list = 0;
2542         unsigned int    journal_blocks = 0;
2543         unsigned int    i, checkinterval;
2544         int             max_mnt_count;
2545         int             val, hash_alg;
2546         int             flags;
2547         int             old_bitmaps;
2548         io_manager      io_ptr;
2549         char            opt_string[40];
2550         char            *hash_alg_str;
2551         int             itable_zeroed = 0;
2552
2553 #ifdef ENABLE_NLS
2554         setlocale(LC_MESSAGES, "");
2555         setlocale(LC_CTYPE, "");
2556         bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
2557         textdomain(NLS_CAT_NAME);
2558         set_com_err_gettext(gettext);
2559 #endif
2560         PRS(argc, argv);
2561
2562 #ifdef CONFIG_TESTIO_DEBUG
2563         if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
2564                 io_ptr = test_io_manager;
2565                 test_io_backing_manager = unix_io_manager;
2566         } else
2567 #endif
2568                 io_ptr = unix_io_manager;
2569
2570         if (should_do_undo(device_name)) {
2571                 retval = mke2fs_setup_tdb(device_name, &io_ptr);
2572                 if (retval)
2573                         exit(1);
2574         }
2575
2576         /*
2577          * Initialize the superblock....
2578          */
2579         flags = EXT2_FLAG_EXCLUSIVE;
2580         if (direct_io)
2581                 flags |= EXT2_FLAG_DIRECT_IO;
2582         profile_get_boolean(profile, "options", "old_bitmaps", 0, 0,
2583                             &old_bitmaps);
2584         if (!old_bitmaps)
2585                 flags |= EXT2_FLAG_64BITS;
2586         /*
2587          * By default, we print how many inode tables or block groups
2588          * or whatever we've written so far.  The quiet flag disables
2589          * this, along with a lot of other output.
2590          */
2591         if (!quiet)
2592                 flags |= EXT2_FLAG_PRINT_PROGRESS;
2593         retval = ext2fs_initialize(device_name, flags, &fs_param, io_ptr, &fs);
2594         if (retval) {
2595                 com_err(device_name, retval, "%s",
2596                         _("while setting up superblock"));
2597                 exit(1);
2598         }
2599
2600         /* Calculate journal blocks */
2601         if (!journal_device && ((journal_size) ||
2602                 (fs_param.s_feature_compat &
2603                  EXT3_FEATURE_COMPAT_HAS_JOURNAL)))
2604                 journal_blocks = figure_journal_size(journal_size, fs);
2605
2606         /* Can't undo discard ... */
2607         if (!noaction && discard && dev_size && (io_ptr != undo_io_manager)) {
2608                 retval = mke2fs_discard_device(fs);
2609                 if (!retval && io_channel_discard_zeroes_data(fs->io)) {
2610                         if (verbose)
2611                                 printf("%s",
2612                                        _("Discard succeeded and will return "
2613                                          "0s - skipping inode table wipe\n"));
2614                         lazy_itable_init = 1;
2615                         itable_zeroed = 1;
2616                         zero_hugefile = 0;
2617                 }
2618         }
2619
2620         sprintf(opt_string, "tdb_data_size=%d", fs->blocksize <= 4096 ?
2621                 32768 : fs->blocksize * 8);
2622         io_channel_set_options(fs->io, opt_string);
2623         if (offset) {
2624                 sprintf(opt_string, "offset=%llu", offset);
2625                 io_channel_set_options(fs->io, opt_string);
2626         }
2627
2628         if (fs_param.s_flags & EXT2_FLAGS_TEST_FILESYS)
2629                 fs->super->s_flags |= EXT2_FLAGS_TEST_FILESYS;
2630
2631         if ((fs_param.s_feature_incompat &
2632              (EXT3_FEATURE_INCOMPAT_EXTENTS|EXT4_FEATURE_INCOMPAT_FLEX_BG)) ||
2633             (fs_param.s_feature_ro_compat &
2634              (EXT4_FEATURE_RO_COMPAT_HUGE_FILE|EXT4_FEATURE_RO_COMPAT_GDT_CSUM|
2635               EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
2636               EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE)))
2637                 fs->super->s_kbytes_written = 1;
2638
2639         /*
2640          * Wipe out the old on-disk superblock
2641          */
2642         if (!noaction)
2643                 zap_sector(fs, 2, 6);
2644
2645         /*
2646          * Parse or generate a UUID for the filesystem
2647          */
2648         if (fs_uuid) {
2649                 if (uuid_parse(fs_uuid, fs->super->s_uuid) !=0) {
2650                         com_err(device_name, 0, "could not parse UUID: %s\n",
2651                                 fs_uuid);
2652                         exit(1);
2653                 }
2654         } else
2655                 uuid_generate(fs->super->s_uuid);
2656
2657         /*
2658          * Initialize the directory index variables
2659          */
2660         hash_alg_str = get_string_from_profile(fs_types, "hash_alg",
2661                                                "half_md4");
2662         hash_alg = e2p_string2hash(hash_alg_str);
2663         free(hash_alg_str);
2664         fs->super->s_def_hash_version = (hash_alg >= 0) ? hash_alg :
2665                 EXT2_HASH_HALF_MD4;
2666         uuid_generate((unsigned char *) fs->super->s_hash_seed);
2667
2668         /*
2669          * Periodic checks can be enabled/disabled via config file.
2670          * Note we override the kernel include file's idea of what the default
2671          * check interval (never) should be.  It's a good idea to check at
2672          * least *occasionally*, specially since servers will never rarely get
2673          * to reboot, since Linux is so robust these days.  :-)
2674          *
2675          * 180 days (six months) seems like a good value.
2676          */
2677 #ifdef EXT2_DFL_CHECKINTERVAL
2678 #undef EXT2_DFL_CHECKINTERVAL
2679 #endif
2680 #define EXT2_DFL_CHECKINTERVAL (86400L * 180L)
2681
2682         if (get_bool_from_profile(fs_types, "enable_periodic_fsck", 0)) {
2683                 fs->super->s_checkinterval = EXT2_DFL_CHECKINTERVAL;
2684                 fs->super->s_max_mnt_count = EXT2_DFL_MAX_MNT_COUNT;
2685                 /*
2686                  * Add "jitter" to the superblock's check interval so that we
2687                  * don't check all the filesystems at the same time.  We use a
2688                  * kludgy hack of using the UUID to derive a random jitter value
2689                  */
2690                 for (i = 0, val = 0 ; i < sizeof(fs->super->s_uuid); i++)
2691                         val += fs->super->s_uuid[i];
2692                 fs->super->s_max_mnt_count += val % EXT2_DFL_MAX_MNT_COUNT;
2693         } else
2694                 fs->super->s_max_mnt_count = -1;
2695
2696         /*
2697          * Override the creator OS, if applicable
2698          */
2699         if (creator_os && !set_os(fs->super, creator_os)) {
2700                 com_err (program_name, 0, _("unknown os - %s"), creator_os);
2701                 exit(1);
2702         }
2703
2704         /*
2705          * For the Hurd, we will turn off filetype since it doesn't
2706          * support it.
2707          */
2708         if (fs->super->s_creator_os == EXT2_OS_HURD)
2709                 fs->super->s_feature_incompat &=
2710                         ~EXT2_FEATURE_INCOMPAT_FILETYPE;
2711
2712         /*
2713          * Set the volume label...
2714          */
2715         if (volume_label) {
2716                 memset(fs->super->s_volume_name, 0,
2717                        sizeof(fs->super->s_volume_name));
2718                 strncpy(fs->super->s_volume_name, volume_label,
2719                         sizeof(fs->super->s_volume_name));
2720         }
2721
2722         /*
2723          * Set the last mount directory
2724          */
2725         if (mount_dir) {
2726                 memset(fs->super->s_last_mounted, 0,
2727                        sizeof(fs->super->s_last_mounted));
2728                 strncpy(fs->super->s_last_mounted, mount_dir,
2729                         sizeof(fs->super->s_last_mounted));
2730         }
2731
2732         if (!quiet || noaction)
2733                 show_stats(fs);
2734
2735         if (noaction)
2736                 exit(0);
2737
2738         if (fs->super->s_feature_incompat &
2739             EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) {
2740                 create_journal_dev(fs);
2741                 exit(ext2fs_close_free(&fs) ? 1 : 0);
2742         }
2743
2744         if (bad_blocks_filename)
2745                 read_bb_file(fs, &bb_list, bad_blocks_filename);
2746         if (cflag)
2747                 test_disk(fs, &bb_list);
2748         handle_bad_blocks(fs, bb_list);
2749
2750         fs->stride = fs_stride = fs->super->s_raid_stride;
2751         if (!quiet)
2752                 printf("%s", _("Allocating group tables: "));
2753         if ((fs->super->s_feature_incompat & EXT4_FEATURE_INCOMPAT_FLEX_BG) &&
2754             packed_meta_blocks)
2755                 retval = packed_allocate_tables(fs);
2756         else
2757                 retval = ext2fs_allocate_tables(fs);
2758         if (retval) {
2759                 com_err(program_name, retval, "%s",
2760                         _("while trying to allocate filesystem tables"));
2761                 exit(1);
2762         }
2763         if (!quiet)
2764                 printf("%s", _("done                            \n"));
2765
2766         retval = ext2fs_convert_subcluster_bitmap(fs, &fs->block_map);
2767         if (retval) {
2768                 com_err(program_name, retval, "%s",
2769                         _("\n\twhile converting subcluster bitmap"));
2770                 exit(1);
2771         }
2772
2773         if (super_only) {
2774                 fs->super->s_state |= EXT2_ERROR_FS;
2775                 fs->flags &= ~(EXT2_FLAG_IB_DIRTY|EXT2_FLAG_BB_DIRTY);
2776                 /*
2777                  * The command "mke2fs -S" is used to recover
2778                  * corrupted file systems, so do not mark any of the
2779                  * inodes as unused; we want e2fsck to consider all
2780                  * inodes as potentially containing recoverable data.
2781                  */
2782                 if (fs->super->s_feature_ro_compat &
2783                     EXT4_FEATURE_RO_COMPAT_GDT_CSUM) {
2784                         for (i = 0; i < fs->group_desc_count; i++)
2785                                 ext2fs_bg_itable_unused_set(fs, i, 0);
2786                 }
2787         } else {
2788                 /* rsv must be a power of two (64kB is MD RAID sb alignment) */
2789                 blk64_t rsv = 65536 / fs->blocksize;
2790                 blk64_t blocks = ext2fs_blocks_count(fs->super);
2791                 blk64_t start;
2792                 blk64_t ret_blk;
2793
2794 #ifdef ZAP_BOOTBLOCK
2795                 zap_sector(fs, 0, 2);
2796 #endif
2797
2798                 /*
2799                  * Wipe out any old MD RAID (or other) metadata at the end
2800                  * of the device.  This will also verify that the device is
2801                  * as large as we think.  Be careful with very small devices.
2802                  */
2803                 start = (blocks & ~(rsv - 1));
2804                 if (start > rsv)
2805                         start -= rsv;
2806                 if (start > 0)
2807                         retval = ext2fs_zero_blocks2(fs, start, blocks - start,
2808                                                     &ret_blk, NULL);
2809
2810                 if (retval) {
2811                         com_err(program_name, retval,
2812                                 _("while zeroing block %llu at end of filesystem"),
2813                                 ret_blk);
2814                 }
2815                 write_inode_tables(fs, lazy_itable_init, itable_zeroed);
2816                 create_root_dir(fs);
2817                 create_lost_and_found(fs);
2818                 reserve_inodes(fs);
2819                 create_bad_block_inode(fs, bb_list);
2820                 if (fs->super->s_feature_compat &
2821                     EXT2_FEATURE_COMPAT_RESIZE_INODE) {
2822                         retval = ext2fs_create_resize_inode(fs);
2823                         if (retval) {
2824                                 com_err("ext2fs_create_resize_inode", retval,
2825                                         "%s",
2826                                 _("while reserving blocks for online resize"));
2827                                 exit(1);
2828                         }
2829                 }
2830         }
2831
2832         if (journal_device) {
2833                 ext2_filsys     jfs;
2834
2835                 if (!check_plausibility(journal_device, CHECK_BLOCK_DEV,
2836                                         NULL) && !force)
2837                         proceed_question(proceed_delay);
2838                 check_mount(journal_device, force, _("journal"));
2839
2840                 retval = ext2fs_open(journal_device, EXT2_FLAG_RW|
2841                                      EXT2_FLAG_JOURNAL_DEV_OK, 0,
2842                                      fs->blocksize, unix_io_manager, &jfs);
2843                 if (retval) {
2844                         com_err(program_name, retval,
2845                                 _("while trying to open journal device %s\n"),
2846                                 journal_device);
2847                         exit(1);
2848                 }
2849                 if (!quiet) {
2850                         printf(_("Adding journal to device %s: "),
2851                                journal_device);
2852                         fflush(stdout);
2853                 }
2854                 retval = ext2fs_add_journal_device(fs, jfs);
2855                 if(retval) {
2856                         com_err (program_name, retval,
2857                                  _("\n\twhile trying to add journal to device %s"),
2858                                  journal_device);
2859                         exit(1);
2860                 }
2861                 if (!quiet)
2862                         printf("%s", _("done\n"));
2863                 ext2fs_close_free(&jfs);
2864                 free(journal_device);
2865         } else if ((journal_size) ||
2866                    (fs_param.s_feature_compat &
2867                     EXT3_FEATURE_COMPAT_HAS_JOURNAL)) {
2868                 if (super_only) {
2869                         printf("%s", _("Skipping journal creation in super-only mode\n"));
2870                         fs->super->s_journal_inum = EXT2_JOURNAL_INO;
2871                         goto no_journal;
2872                 }
2873
2874                 if (!journal_blocks) {
2875                         fs->super->s_feature_compat &=
2876                                 ~EXT3_FEATURE_COMPAT_HAS_JOURNAL;
2877                         goto no_journal;
2878                 }
2879                 if (!quiet) {
2880                         printf(_("Creating journal (%u blocks): "),
2881                                journal_blocks);
2882                         fflush(stdout);
2883                 }
2884                 retval = ext2fs_add_journal_inode2(fs, journal_blocks,
2885                                                    journal_location,
2886                                                    journal_flags);
2887                 if (retval) {
2888                         com_err(program_name, retval, "%s",
2889                                 _("\n\twhile trying to create journal"));
2890                         exit(1);
2891                 }
2892                 if (!quiet)
2893                         printf("%s", _("done\n"));
2894         }
2895 no_journal:
2896         if (!super_only &&
2897             fs->super->s_feature_incompat & EXT4_FEATURE_INCOMPAT_MMP) {
2898                 retval = ext2fs_mmp_init(fs);
2899                 if (retval) {
2900                         fprintf(stderr, "%s",
2901                                 _("\nError while enabling multiple "
2902                                   "mount protection feature."));
2903                         exit(1);
2904                 }
2905                 if (!quiet)
2906                         printf(_("Multiple mount protection is enabled "
2907                                  "with update interval %d seconds.\n"),
2908                                fs->super->s_mmp_update_interval);
2909         }
2910
2911         if (EXT2_HAS_RO_COMPAT_FEATURE(&fs_param,
2912                                        EXT4_FEATURE_RO_COMPAT_BIGALLOC))
2913                 fix_cluster_bg_counts(fs);
2914         if (EXT2_HAS_RO_COMPAT_FEATURE(&fs_param,
2915                                        EXT4_FEATURE_RO_COMPAT_QUOTA))
2916                 create_quota_inodes(fs);
2917
2918         retval = mk_hugefiles(fs, device_name);
2919         if (retval)
2920                 com_err(program_name, retval, "while creating huge files");
2921
2922         if (!quiet)
2923                 printf("%s", _("Writing superblocks and "
2924                        "filesystem accounting information: "));
2925         checkinterval = fs->super->s_checkinterval;
2926         max_mnt_count = fs->super->s_max_mnt_count;
2927         retval = ext2fs_close_free(&fs);
2928         if (retval) {
2929                 fprintf(stderr, "%s",
2930                         _("\nWarning, had trouble writing out superblocks."));
2931         } else if (!quiet) {
2932                 printf("%s", _("done\n\n"));
2933                 if (!getenv("MKE2FS_SKIP_CHECK_MSG"))
2934                         print_check_message(max_mnt_count, checkinterval);
2935         }
2936
2937         remove_error_table(&et_ext2_error_table);
2938         remove_error_table(&et_prof_error_table);
2939         profile_release(profile);
2940         for (i=0; fs_types[i]; i++)
2941                 free(fs_types[i]);
2942         free(fs_types);
2943         return retval;
2944 }