376 lines
8.7 KiB
C
376 lines
8.7 KiB
C
|
/* vi: set sw=4 ts=4: */
|
||
|
|
/*
|
||
|
|
* probe.h - constants and on-disk structures for extracting device data
|
||
|
|
*
|
||
|
|
* Copyright (C) 1999 by Andries Brouwer
|
||
|
|
* Copyright (C) 1999, 2000, 2003 by Theodore Ts'o
|
||
|
|
* Copyright (C) 2001 by Andreas Dilger
|
||
|
|
*
|
||
|
|
* %Begin-Header%
|
||
|
|
* This file may be redistributed under the terms of the
|
||
|
|
* GNU Lesser General Public License.
|
||
|
|
* %End-Header%
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef _BLKID_PROBE_H
|
||
|
|
#define _BLKID_PROBE_H
|
||
|
|
|
||
|
|
#include <linux/types.h>
|
||
|
|
|
||
|
|
struct blkid_magic;
|
||
|
|
|
||
|
|
typedef int (*blkid_probe_t)(int fd, blkid_cache cache, blkid_dev dev,
|
||
|
|
const struct blkid_magic *id, unsigned char *buf);
|
||
|
|
|
||
|
|
struct blkid_magic {
|
||
|
|
const char *bim_type; /* type name for this magic */
|
||
|
|
long bim_kboff; /* kilobyte offset of superblock */
|
||
|
|
unsigned bim_sboff; /* byte offset within superblock */
|
||
|
|
unsigned bim_len; /* length of magic */
|
||
|
|
const char *bim_magic; /* magic string */
|
||
|
|
blkid_probe_t bim_probe; /* probe function */
|
||
|
|
};
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Structures for each of the content types we want to extract information
|
||
|
|
* from. We do not necessarily need the magic field here, because we have
|
||
|
|
* already identified the content type before we get this far. It may still
|
||
|
|
* be useful if there are probe functions which handle multiple content types.
|
||
|
|
*/
|
||
|
|
struct ext2_super_block {
|
||
|
|
__u32 s_inodes_count;
|
||
|
|
__u32 s_blocks_count;
|
||
|
|
__u32 s_r_blocks_count;
|
||
|
|
__u32 s_free_blocks_count;
|
||
|
|
__u32 s_free_inodes_count;
|
||
|
|
__u32 s_first_data_block;
|
||
|
|
__u32 s_log_block_size;
|
||
|
|
__u32 s_dummy3[7];
|
||
|
|
unsigned char s_magic[2];
|
||
|
|
__u16 s_state;
|
||
|
|
__u32 s_dummy5[8];
|
||
|
|
__u32 s_feature_compat;
|
||
|
|
__u32 s_feature_incompat;
|
||
|
|
__u32 s_feature_ro_compat;
|
||
|
|
unsigned char s_uuid[16];
|
||
|
|
char s_volume_name[16];
|
||
|
|
};
|
||
|
|
#define EXT3_FEATURE_COMPAT_HAS_JOURNAL 0x00000004
|
||
|
|
#define EXT3_FEATURE_INCOMPAT_RECOVER 0x00000004
|
||
|
|
#define EXT3_FEATURE_INCOMPAT_JOURNAL_DEV 0x00000008
|
||
|
|
|
||
|
|
struct xfs_super_block {
|
||
|
|
unsigned char xs_magic[4];
|
||
|
|
__u32 xs_blocksize;
|
||
|
|
__u64 xs_dblocks;
|
||
|
|
__u64 xs_rblocks;
|
||
|
|
__u32 xs_dummy1[2];
|
||
|
|
unsigned char xs_uuid[16];
|
||
|
|
__u32 xs_dummy2[15];
|
||
|
|
char xs_fname[12];
|
||
|
|
__u32 xs_dummy3[2];
|
||
|
|
__u64 xs_icount;
|
||
|
|
__u64 xs_ifree;
|
||
|
|
__u64 xs_fdblocks;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct reiserfs_super_block {
|
||
|
|
__u32 rs_blocks_count;
|
||
|
|
__u32 rs_free_blocks;
|
||
|
|
__u32 rs_root_block;
|
||
|
|
__u32 rs_journal_block;
|
||
|
|
__u32 rs_journal_dev;
|
||
|
|
__u32 rs_orig_journal_size;
|
||
|
|
__u32 rs_dummy2[5];
|
||
|
|
__u16 rs_blocksize;
|
||
|
|
__u16 rs_dummy3[3];
|
||
|
|
unsigned char rs_magic[12];
|
||
|
|
__u32 rs_dummy4[5];
|
||
|
|
unsigned char rs_uuid[16];
|
||
|
|
char rs_label[16];
|
||
|
|
};
|
||
|
|
|
||
|
|
struct jfs_super_block {
|
||
|
|
unsigned char js_magic[4];
|
||
|
|
__u32 js_version;
|
||
|
|
__u64 js_size;
|
||
|
|
__u32 js_bsize;
|
||
|
|
__u32 js_dummy1;
|
||
|
|
__u32 js_pbsize;
|
||
|
|
__u32 js_dummy2[27];
|
||
|
|
unsigned char js_uuid[16];
|
||
|
|
unsigned char js_label[16];
|
||
|
|
unsigned char js_loguuid[16];
|
||
|
|
};
|
||
|
|
|
||
|
|
struct romfs_super_block {
|
||
|
|
unsigned char ros_magic[8];
|
||
|
|
__u32 ros_dummy1[2];
|
||
|
|
unsigned char ros_volume[16];
|
||
|
|
};
|
||
|
|
|
||
|
|
struct cramfs_super_block {
|
||
|
|
__u8 magic[4];
|
||
|
|
__u32 size;
|
||
|
|
__u32 flags;
|
||
|
|
__u32 future;
|
||
|
|
__u8 signature[16];
|
||
|
|
struct cramfs_info {
|
||
|
|
__u32 crc;
|
||
|
|
__u32 edition;
|
||
|
|
__u32 blocks;
|
||
|
|
__u32 files;
|
||
|
|
} info;
|
||
|
|
__u8 name[16];
|
||
|
|
};
|
||
|
|
|
||
|
|
struct swap_id_block {
|
||
|
|
/* unsigned char sws_boot[1024]; */
|
||
|
|
__u32 sws_version;
|
||
|
|
__u32 sws_lastpage;
|
||
|
|
__u32 sws_nrbad;
|
||
|
|
unsigned char sws_uuid[16];
|
||
|
|
char sws_volume[16];
|
||
|
|
unsigned char sws_pad[117];
|
||
|
|
__u32 sws_badpg;
|
||
|
|
};
|
||
|
|
|
||
|
|
/* Yucky misaligned values */
|
||
|
|
struct vfat_super_block {
|
||
|
|
/* 00*/ unsigned char vs_ignored[3];
|
||
|
|
/* 03*/ unsigned char vs_sysid[8];
|
||
|
|
/* 0b*/ unsigned char vs_sector_size[2];
|
||
|
|
/* 0d*/ __u8 vs_cluster_size;
|
||
|
|
/* 0e*/ __u16 vs_reserved;
|
||
|
|
/* 10*/ __u8 vs_fats;
|
||
|
|
/* 11*/ unsigned char vs_dir_entries[2];
|
||
|
|
/* 13*/ unsigned char vs_sectors[2];
|
||
|
|
/* 15*/ unsigned char vs_media;
|
||
|
|
/* 16*/ __u16 vs_fat_length;
|
||
|
|
/* 18*/ __u16 vs_secs_track;
|
||
|
|
/* 1a*/ __u16 vs_heads;
|
||
|
|
/* 1c*/ __u32 vs_hidden;
|
||
|
|
/* 20*/ __u32 vs_total_sect;
|
||
|
|
/* 24*/ __u32 vs_fat32_length;
|
||
|
|
/* 28*/ __u16 vs_flags;
|
||
|
|
/* 2a*/ __u8 vs_version[2];
|
||
|
|
/* 2c*/ __u32 vs_root_cluster;
|
||
|
|
/* 30*/ __u16 vs_insfo_sector;
|
||
|
|
/* 32*/ __u16 vs_backup_boot;
|
||
|
|
/* 34*/ __u16 vs_reserved2[6];
|
||
|
|
/* 40*/ unsigned char vs_unknown[3];
|
||
|
|
/* 43*/ unsigned char vs_serno[4];
|
||
|
|
/* 47*/ char vs_label[11];
|
||
|
|
/* 52*/ unsigned char vs_magic[8];
|
||
|
|
/* 5a*/ unsigned char vs_dummy2[164];
|
||
|
|
/*1fe*/ unsigned char vs_pmagic[2];
|
||
|
|
};
|
||
|
|
|
||
|
|
/* Yucky misaligned values */
|
||
|
|
struct msdos_super_block {
|
||
|
|
/* 00*/ unsigned char ms_ignored[3];
|
||
|
|
/* 03*/ unsigned char ms_sysid[8];
|
||
|
|
/* 0b*/ unsigned char ms_sector_size[2];
|
||
|
|
/* 0d*/ __u8 ms_cluster_size;
|
||
|
|
/* 0e*/ __u16 ms_reserved;
|
||
|
|
/* 10*/ __u8 ms_fats;
|
||
|
|
/* 11*/ unsigned char ms_dir_entries[2];
|
||
|
|
/* 13*/ unsigned char ms_sectors[2];
|
||
|
|
/* 15*/ unsigned char ms_media;
|
||
|
|
/* 16*/ __u16 ms_fat_length;
|
||
|
|
/* 18*/ __u16 ms_secs_track;
|
||
|
|
/* 1a*/ __u16 ms_heads;
|
||
|
|
/* 1c*/ __u32 ms_hidden;
|
||
|
|
/* 20*/ __u32 ms_total_sect;
|
||
|
|
/* 24*/ unsigned char ms_unknown[3];
|
||
|
|
/* 27*/ unsigned char ms_serno[4];
|
||
|
|
/* 2b*/ char ms_label[11];
|
||
|
|
/* 36*/ unsigned char ms_magic[8];
|
||
|
|
/* 3d*/ unsigned char ms_dummy2[192];
|
||
|
|
/*1fe*/ unsigned char ms_pmagic[2];
|
||
|
|
};
|
||
|
|
|
||
|
|
struct minix_super_block {
|
||
|
|
__u16 ms_ninodes;
|
||
|
|
__u16 ms_nzones;
|
||
|
|
__u16 ms_imap_blocks;
|
||
|
|
__u16 ms_zmap_blocks;
|
||
|
|
__u16 ms_firstdatazone;
|
||
|
|
__u16 ms_log_zone_size;
|
||
|
|
__u32 ms_max_size;
|
||
|
|
unsigned char ms_magic[2];
|
||
|
|
__u16 ms_state;
|
||
|
|
__u32 ms_zones;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct mdp_superblock_s {
|
||
|
|
__u32 md_magic;
|
||
|
|
__u32 major_version;
|
||
|
|
__u32 minor_version;
|
||
|
|
__u32 patch_version;
|
||
|
|
__u32 gvalid_words;
|
||
|
|
__u32 set_uuid0;
|
||
|
|
__u32 ctime;
|
||
|
|
__u32 level;
|
||
|
|
__u32 size;
|
||
|
|
__u32 nr_disks;
|
||
|
|
__u32 raid_disks;
|
||
|
|
__u32 md_minor;
|
||
|
|
__u32 not_persistent;
|
||
|
|
__u32 set_uuid1;
|
||
|
|
__u32 set_uuid2;
|
||
|
|
__u32 set_uuid3;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct hfs_super_block {
|
||
|
|
char h_magic[2];
|
||
|
|
char h_dummy[18];
|
||
|
|
__u32 h_blksize;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct ocfs_volume_header {
|
||
|
|
unsigned char minor_version[4];
|
||
|
|
unsigned char major_version[4];
|
||
|
|
unsigned char signature[128];
|
||
|
|
char mount[128];
|
||
|
|
unsigned char mount_len[2];
|
||
|
|
};
|
||
|
|
|
||
|
|
struct ocfs_volume_label {
|
||
|
|
unsigned char disk_lock[48];
|
||
|
|
char label[64];
|
||
|
|
unsigned char label_len[2];
|
||
|
|
unsigned char vol_id[16];
|
||
|
|
unsigned char vol_id_len[2];
|
||
|
|
};
|
||
|
|
|
||
|
|
#define ocfsmajor(o) ((__u32)o.major_version[0] \
|
||
|
|
+ (((__u32) o.major_version[1]) << 8) \
|
||
|
|
+ (((__u32) o.major_version[2]) << 16) \
|
||
|
|
+ (((__u32) o.major_version[3]) << 24))
|
||
|
|
#define ocfslabellen(o) ((__u32)o.label_len[0] + (((__u32) o.label_len[1]) << 8))
|
||
|
|
#define ocfsmountlen(o) ((__u32)o.mount_len[0] + (((__u32) o.mount_len[1])<<8))
|
||
|
|
|
||
|
|
#define OCFS_MAGIC "OracleCFS"
|
||
|
|
|
||
|
|
struct ocfs2_super_block {
|
||
|
|
unsigned char signature[8];
|
||
|
|
unsigned char s_dummy1[184];
|
||
|
|
unsigned char s_dummy2[80];
|
||
|
|
char s_label[64];
|
||
|
|
unsigned char s_uuid[16];
|
||
|
|
};
|
||
|
|
|
||
|
|
#define OCFS2_MIN_BLOCKSIZE 512
|
||
|
|
#define OCFS2_MAX_BLOCKSIZE 4096
|
||
|
|
|
||
|
|
#define OCFS2_SUPER_BLOCK_BLKNO 2
|
||
|
|
|
||
|
|
#define OCFS2_SUPER_BLOCK_SIGNATURE "OCFSV2"
|
||
|
|
|
||
|
|
struct oracle_asm_disk_label {
|
||
|
|
char dummy[32];
|
||
|
|
char dl_tag[8];
|
||
|
|
char dl_id[24];
|
||
|
|
};
|
||
|
|
|
||
|
|
#define ORACLE_ASM_DISK_LABEL_MARKED "ORCLDISK"
|
||
|
|
#define ORACLE_ASM_DISK_LABEL_OFFSET 32
|
||
|
|
|
||
|
|
#define ISODCL(from, to) (to - from + 1)
|
||
|
|
struct iso_volume_descriptor {
|
||
|
|
char type[ISODCL(1,1)]; /* 711 */
|
||
|
|
char id[ISODCL(2,6)];
|
||
|
|
char version[ISODCL(7,7)];
|
||
|
|
char data[ISODCL(8,2048)];
|
||
|
|
};
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Byte swap functions
|
||
|
|
*/
|
||
|
|
#ifdef __GNUC__
|
||
|
|
#define _INLINE_ static __inline__
|
||
|
|
#else /* For Watcom C */
|
||
|
|
#define _INLINE_ static inline
|
||
|
|
#endif
|
||
|
|
|
||
|
|
static __u16 blkid_swab16(__u16 val);
|
||
|
|
static __u32 blkid_swab32(__u32 val);
|
||
|
|
static __u64 blkid_swab64(__u64 val);
|
||
|
|
|
||
|
|
#if ((defined __GNUC__) && \
|
||
|
|
(defined(__i386__) || defined(__i486__) || defined(__i586__)))
|
||
|
|
|
||
|
|
#define _BLKID_HAVE_ASM_BITOPS_
|
||
|
|
|
||
|
|
_INLINE_ __u32 blkid_swab32(__u32 val)
|
||
|
|
{
|
||
|
|
#ifdef EXT2FS_REQUIRE_486
|
||
|
|
__asm__("bswap %0" : "=r" (val) : "0" (val));
|
||
|
|
#else
|
||
|
|
__asm__("xchgb %b0,%h0\n\t" /* swap lower bytes */
|
||
|
|
"rorl $16,%0\n\t" /* swap words */
|
||
|
|
"xchgb %b0,%h0" /* swap higher bytes */
|
||
|
|
:"=q" (val)
|
||
|
|
: "0" (val));
|
||
|
|
#endif
|
||
|
|
return val;
|
||
|
|
}
|
||
|
|
|
||
|
|
_INLINE_ __u16 blkid_swab16(__u16 val)
|
||
|
|
{
|
||
|
|
__asm__("xchgb %b0,%h0" /* swap bytes */ \
|
||
|
|
: "=q" (val) \
|
||
|
|
: "0" (val)); \
|
||
|
|
return val;
|
||
|
|
}
|
||
|
|
|
||
|
|
_INLINE_ __u64 blkid_swab64(__u64 val)
|
||
|
|
{
|
||
|
|
return blkid_swab32(val >> 32) |
|
||
|
|
( ((__u64)blkid_swab32((__u32)val)) << 32 );
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if !defined(_BLKID_HAVE_ASM_BITOPS_)
|
||
|
|
|
||
|
|
_INLINE_ __u16 blkid_swab16(__u16 val)
|
||
|
|
{
|
||
|
|
return (val >> 8) | (val << 8);
|
||
|
|
}
|
||
|
|
|
||
|
|
_INLINE_ __u32 blkid_swab32(__u32 val)
|
||
|
|
{
|
||
|
|
return (val>>24) | ((val>>8) & 0xFF00) |
|
||
|
|
((val<<8) & 0xFF0000) | (val<<24);
|
||
|
|
}
|
||
|
|
|
||
|
|
_INLINE_ __u64 blkid_swab64(__u64 val)
|
||
|
|
{
|
||
|
|
return blkid_swab32(val >> 32) |
|
||
|
|
( ((__u64)blkid_swab32((__u32)val)) << 32 );
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
#if __BYTE_ORDER == __BIG_ENDIAN
|
||
|
|
#define blkid_le16(x) blkid_swab16(x)
|
||
|
|
#define blkid_le32(x) blkid_swab32(x)
|
||
|
|
#define blkid_le64(x) blkid_swab64(x)
|
||
|
|
#define blkid_be16(x) (x)
|
||
|
|
#define blkid_be32(x) (x)
|
||
|
|
#define blkid_be64(x) (x)
|
||
|
|
#else
|
||
|
|
#define blkid_le16(x) (x)
|
||
|
|
#define blkid_le32(x) (x)
|
||
|
|
#define blkid_le64(x) (x)
|
||
|
|
#define blkid_be16(x) blkid_swab16(x)
|
||
|
|
#define blkid_be32(x) blkid_swab32(x)
|
||
|
|
#define blkid_be64(x) blkid_swab64(x)
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#undef _INLINE_
|
||
|
|
|
||
|
|
#endif /* _BLKID_PROBE_H */
|