#define CONFIG_BLKID_DEBUG 1
#include <sys/types.h>
+#include <dirent.h>
+#include <sys/stat.h>
#include <stdio.h>
#include <stdarg.h>
+#include <stdint.h>
+#include "c.h"
#include "bitops.h" /* $(top_srcdir)/include/ */
+#include "blkdev.h"
+
#include "blkid.h"
#include "list.h"
-#ifdef __GNUC__
-#define __BLKID_ATTR(x) __attribute__(x)
-#else
-#define __BLKID_ATTR(x)
-#endif
-
-#ifndef TRUE
-#define TRUE 1
-#define FALSE 0
-#endif
-
-#include <limits.h>
-#ifndef PATH_MAX
-# define PATH_MAX 4096
-#endif
-
-/* TODO: move to some top-level util-linux include file */
-#ifndef ARRAY_SIZE
-#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
-#endif
-
/*
* This describes the attributes of a specific device.
* We can traverse all of the tags by bid_tags (linking to the tag bit_names).
int bid_pri; /* Device priority */
dev_t bid_devno; /* Device major/minor number */
time_t bid_time; /* Last update time of device */
+ suseconds_t bid_utime; /* Last update time (microseconds) */
unsigned int bid_flags; /* Device status bitflags */
char *bid_label; /* Shortcut to device LABEL */
char *bid_uuid; /* Shortcut to binary UUID */
#define BLKID_BID_FL_VERIFIED 0x0001 /* Device data validated from disk */
#define BLKID_BID_FL_INVALID 0x0004 /* Device is invalid */
+#define BLKID_BID_FL_REMOVABLE 0x0008 /* Device added by blkid_probe_all_removable() */
/*
* Each tag defines a NAME=value pair for a particular device. The tags
typedef struct blkid_struct_tag *blkid_tag;
/*
- * Low-level probe result
+ * Chain IDs
*/
-#define BLKID_PROBVAL_BUFSIZ 64
-#define BLKID_PROBVAL_NVALS 8 /* see blkid.h BLKID_PROBREQ_* */
+enum {
+ BLKID_CHAIN_SUBLKS, /* FS/RAID superblocks (enabled by default) */
+ BLKID_CHAIN_TOPLGY, /* Block device topology */
+ BLKID_CHAIN_PARTS, /* Partition tables */
-struct blkid_prval
-{
- const char *name; /* value name */
- unsigned char data[BLKID_PROBVAL_BUFSIZ]; /* value data */
- size_t len; /* length of value data */
+ BLKID_NCHAINS /* number of chains */
+};
+
+struct blkid_chain {
+ const struct blkid_chaindrv *driver; /* chain driver */
+
+ int enabled; /* boolean */
+ int flags; /* BLKID_<chain>_* */
+ int binary; /* boolean */
+ int idx; /* index of the current prober (or -1) */
+ unsigned long *fltr; /* filter or NULL */
+ void *data; /* private chain data or NULL */
};
/*
- * Low-level probing control struct
+ * Chain driver
*/
-struct blkid_struct_probe
-{
- int fd; /* device file descriptor */
- blkid_loff_t off; /* begin of data on the device */
- blkid_loff_t size; /* end of data on the device */
+struct blkid_chaindrv {
+ const size_t id; /* BLKID_CHAIN_* */
+ const char *name; /* name of chain (for debug purpose) */
+ const int dflt_flags; /* default chain flags */
+ const int dflt_enabled; /* default enabled boolean */
+ int has_fltr; /* boolean */
+
+ const struct blkid_idinfo **idinfos; /* description of probing functions */
+ const size_t nidinfos; /* number of idinfos */
+
+ /* driver operations */
+ int (*probe)(blkid_probe, struct blkid_chain *);
+ int (*safeprobe)(blkid_probe, struct blkid_chain *);
+ void (*free_data)(blkid_probe, void *);
+};
- unsigned char *sbbuf; /* superblok buffer */
- size_t sbbuf_len; /* size of data in superblock buffer */
+/*
+ * Low-level probe result
+ */
+#define BLKID_PROBVAL_BUFSIZ 64
- unsigned char *buf; /* seek buffer */
- blkid_loff_t buf_off; /* offset of seek buffer */
- size_t buf_len; /* size of data in seek buffer */
- size_t buf_max; /* allocated size of seek buffer */
+#define BLKID_NVALS_SUBLKS 14
+#define BLKID_NVALS_TOPLGY 5
+#define BLKID_NVALS_PARTS 13
- struct blkid_prval vals[BLKID_PROBVAL_NVALS];
- int nvals;
+/* Max number of all values in probing result */
+#define BLKID_NVALS (BLKID_NVALS_SUBLKS + \
+ BLKID_NVALS_TOPLGY + \
+ BLKID_NVALS_PARTS)
- int probreq; /* BLKID_PROBREQ_* flags */
- int idx; /* index of the last prober */
+struct blkid_prval
+{
+ const char *name; /* value name */
+ unsigned char data[BLKID_PROBVAL_BUFSIZ]; /* value data */
+ size_t len; /* length of value data */
- unsigned long *fltr; /* filter */
+ struct blkid_chain *chain; /* owner */
};
-#define BLKID_SB_BUFSIZ 0x11000
-
/*
* Filesystem / Raid magic strings
*/
struct blkid_idmag
{
const char *magic; /* magic string */
- unsigned len; /* length of magic */
+ unsigned int len; /* length of magic */
long kboff; /* kilobyte offset of superblock */
- unsigned sboff; /* byte offset within superblock */
+ unsigned int sboff; /* byte offset within superblock */
};
/*
*/
struct blkid_idinfo
{
- const char *name; /* FS/RAID name */
+ const char *name; /* fs, raid or partition table name */
int usage; /* BLKID_USAGE_* flag */
int flags; /* BLKID_IDINFO_* flags */
+ int minsz; /* minimal device size */
/* probe function */
int (*probefunc)(blkid_probe pr, const struct blkid_idmag *mag);
*/
#define BLKID_IDINFO_TOLERANT (1 << 1)
+struct blkid_bufinfo {
+ unsigned char *data;
+ blkid_loff_t off;
+ blkid_loff_t len;
+ struct list_head bufs; /* list of buffers */
+};
+
+/*
+ * Low-level probing control struct
+ */
+struct blkid_struct_probe
+{
+ int fd; /* device file descriptor */
+ blkid_loff_t off; /* begin of data on the device */
+ blkid_loff_t size; /* end of data on the device */
+
+ dev_t devno; /* device number (st.st_rdev) */
+ dev_t disk_devno; /* devno of the whole-disk or 0 */
+ unsigned int blkssz; /* sector size (BLKSSZGET ioctl) */
+ mode_t mode; /* struct stat.sb_mode */
+
+ int flags; /* private libray flags */
+ int prob_flags; /* always zeroized by blkid_do_*() */
+
+ blkid_loff_t wipe_off; /* begin of the wiped area */
+ blkid_loff_t wipe_size; /* size of the wiped area */
+ struct blkid_chain *wipe_chain; /* superblock, partition, ... */
+
+ struct list_head buffers; /* list of buffers */
+
+ struct blkid_chain chains[BLKID_NCHAINS]; /* array of chains */
+ struct blkid_chain *cur_chain; /* current chain */
+
+ struct blkid_prval vals[BLKID_NVALS]; /* results */
+ int nvals; /* number of assigned vals */
+
+ struct blkid_struct_probe *parent; /* for clones */
+ struct blkid_struct_probe *disk_probe; /* whole-disk probing */
+};
+
+/* private flags library flags */
+#define BLKID_FL_PRIVATE_FD (1 << 1) /* see blkid_new_probe_from_filename() */
+#define BLKID_FL_TINY_DEV (1 << 2) /* <= 1.47MiB (floppy or so) */
+#define BLKID_FL_CDROM_DEV (1 << 3) /* is a CD/DVD drive */
+
+/* private per-probing flags */
+#define BLKID_PROBE_FL_IGNORE_PT (1 << 1) /* ignore partition table */
+
+extern blkid_probe blkid_clone_probe(blkid_probe parent);
+extern blkid_probe blkid_probe_get_wholedisk_probe(blkid_probe pr);
+
/*
* Evaluation methods (for blkid_eval_* API)
*/
extern char *blkid_strdup(const char *s);
extern char *blkid_strndup(const char *s, const int length);
+extern char *blkid_strconcat(const char *a, const char *b, const char *c);
#define BLKID_CACHE_FILE "/etc/blkid.tab"
#define BLKID_CONFIG_FILE "/etc/blkid.conf"
/*
* Priority settings for different types of devices
*/
+#define BLKID_PRI_UBI 50
#define BLKID_PRI_DM 40
#define BLKID_PRI_EVMS 30
#define BLKID_PRI_LVM 20
#define DEBUG_ALL 0xFFFF
#ifdef CONFIG_BLKID_DEBUG
-#include <stdio.h>
extern int blkid_debug_mask;
extern void blkid_init_debug(int mask);
extern void blkid_debug_dump_dev(blkid_dev dev);
struct dir_list *next;
};
extern void blkid__scan_dir(char *, dev_t, struct dir_list **, char **);
+extern int blkid_driver_has_major(const char *drvname, int major);
/* lseek.c */
extern blkid_loff_t blkid_llseek(int fd, blkid_loff_t offset, int whence);
extern void blkid_free_dev(blkid_dev dev);
/* probe.c */
-unsigned char *blkid_probe_get_buffer(blkid_probe pr,
+extern int blkid_probe_is_tiny(blkid_probe pr);
+extern int blkid_probe_is_cdrom(blkid_probe pr);
+extern unsigned char *blkid_probe_get_buffer(blkid_probe pr,
blkid_loff_t off, blkid_loff_t len);
+extern unsigned char *blkid_probe_get_sector(blkid_probe pr, unsigned int sector);
+
+extern int blkid_probe_get_dimension(blkid_probe pr,
+ blkid_loff_t *off, blkid_loff_t *size);
+
+extern int blkid_probe_set_dimension(blkid_probe pr,
+ blkid_loff_t off, blkid_loff_t size);
+
+extern int blkid_probe_get_idmag(blkid_probe pr, const struct blkid_idinfo *id,
+ blkid_loff_t *offset, const struct blkid_idmag **res);
+
/* returns superblok according to 'struct blkid_idmag' */
#define blkid_probe_get_sb(_pr, _mag, type) \
((type *) blkid_probe_get_buffer((_pr),\
(_mag)->kboff << 10, sizeof(type)))
+extern blkid_partlist blkid_probe_get_partlist(blkid_probe pr);
+
+extern int blkid_probe_is_covered_by_pt(blkid_probe pr,
+ blkid_loff_t offset, blkid_loff_t size);
+
+extern void blkid_probe_chain_reset_vals(blkid_probe pr, struct blkid_chain *chn);
+extern int blkid_probe_chain_copy_vals(blkid_probe pr, struct blkid_chain *chn,
+ struct blkid_prval *vals, int nvals);
+extern struct blkid_prval *blkid_probe_assign_value(blkid_probe pr, const char *name);
+extern int blkid_probe_reset_last_value(blkid_probe pr);
+extern void blkid_probe_append_vals(blkid_probe pr, struct blkid_prval *vals, int nvals);
+
+extern struct blkid_chain *blkid_probe_get_chain(blkid_probe pr);
+
+extern struct blkid_prval *__blkid_probe_get_value(blkid_probe pr, int num);
+extern struct blkid_prval *__blkid_probe_lookup_value(blkid_probe pr, const char *name);
+
+extern unsigned long *blkid_probe_get_filter(blkid_probe pr, int chain, int create);
+extern int __blkid_probe_invert_filter(blkid_probe pr, int chain);
+extern int __blkid_probe_reset_filter(blkid_probe pr, int chain);
+extern int __blkid_probe_filter_types(blkid_probe pr, int chain, int flag, char *names[]);
+
+extern void *blkid_probe_get_binary_data(blkid_probe pr, struct blkid_chain *chn);
+
extern int blkid_probe_set_value(blkid_probe pr, const char *name,
unsigned char *data, size_t len);
extern int blkid_probe_vsprintf_value(blkid_probe pr, const char *name,
const char *fmt, va_list ap);
-extern int blkid_probe_set_version(blkid_probe pr, const char *version);
-extern int blkid_probe_sprintf_version(blkid_probe pr, const char *fmt, ...)
- __attribute__ ((format (printf, 2, 3)));
-
-extern int blkid_probe_set_label(blkid_probe pr, unsigned char *label, size_t len);
-extern int blkid_probe_set_utf8label(blkid_probe pr, unsigned char *label,
- size_t len, int enc);
-extern int blkid_probe_sprintf_uuid(blkid_probe pr, unsigned char *uuid,
- size_t len, const char *fmt, ...)
- __attribute__ ((format (printf, 4, 5)));
-extern int blkid_probe_strncpy_uuid(blkid_probe pr, unsigned char *str, size_t len);
-
-extern int blkid_probe_set_uuid(blkid_probe pr, unsigned char *uuid);
-extern int blkid_probe_set_uuid_as(blkid_probe pr, unsigned char *uuid, const char *name);
+extern int blkid_probe_sprintf_value(blkid_probe pr, const char *name,
+ const char *fmt, ...);
+
+extern void blkid_unparse_uuid(const unsigned char *uuid, char *str, size_t len);
+extern size_t blkid_rtrim_whitespace(unsigned char *str);
+
+extern void blkid_probe_set_wiper(blkid_probe pr, blkid_loff_t off,
+ blkid_loff_t size);
+extern int blkid_probe_is_wiped(blkid_probe pr, struct blkid_chain **chn,
+ blkid_loff_t off, blkid_loff_t size);
+extern void blkid_probe_use_wiper(blkid_probe pr, blkid_loff_t off, blkid_loff_t size);
+
+/* filter bitmap macros */
+#define blkid_bmp_wordsize (8 * sizeof(unsigned long))
+#define blkid_bmp_idx_bit(item) (1UL << ((item) % blkid_bmp_wordsize))
+#define blkid_bmp_idx_byte(item) ((item) / blkid_bmp_wordsize)
+
+#define blkid_bmp_set_item(bmp, item) \
+ ((bmp)[ blkid_bmp_idx_byte(item) ] |= blkid_bmp_idx_bit(item))
+
+#define blkid_bmp_unset_item(bmp, item) \
+ ((bmp)[ blkid_bmp_idx_byte(item) ] &= ~blkid_bmp_idx_bit(item))
+
+#define blkid_bmp_get_item(bmp, item) \
+ ((bmp)[ blkid_bmp_idx_byte(item) ] & blkid_bmp_idx_bit(item))
+
+#define blkid_bmp_nwords(max_items) \
+ (((max_items) + blkid_bmp_wordsize) / blkid_bmp_wordsize)
+
+#define blkid_bmp_nbytes(max_items) \
+ (blkid_bmp_nwords(max_items) * sizeof(unsigned long))
+
+/* encode.c */
+extern size_t blkid_encode_to_utf8(int enc, unsigned char *dest, size_t len,
+ const unsigned char *src, size_t count);
#define BLKID_ENC_UTF16BE 0
#define BLKID_ENC_UTF16LE 1
projects / framework / base / util-linux-ng.git / blobdiff