* probe.h - constants and on-disk structures for extracting device data
*
* Copyright (C) 1999 by Andries Brouwer
- * Copyright (C) 1999, 2000 by Theodore Ts'o
+ * Copyright (C) 1999, 2000, 2003 by Theodore Ts'o
* Copyright (C) 2001 by Andreas Dilger
*
* %Begin-Header%
struct blkid_magic;
-typedef int (*blkid_probe_t)(int fd, blkid_dev **dev_p, const char *devname,
- struct blkid_magic *id, unsigned char *buf,
- blkid_loff_t size);
+#define SB_BUFFER_SIZE 0x11000
+
+struct blkid_probe {
+ int fd;
+ blkid_cache cache;
+ blkid_dev dev;
+ unsigned char *sbbuf;
+ size_t sb_valid;
+ unsigned char *buf;
+ size_t buf_max;
+};
+
+typedef int (*blkid_probe_t)(struct blkid_probe *probe,
+ struct blkid_magic *id, unsigned char *buf);
struct blkid_magic {
const char *bim_type; /* type name for this magic */
unsigned bim_sboff; /* byte offset within superblock */
unsigned bim_len; /* length of magic */
const char *bim_magic; /* magic string */
- unsigned bim_align; /* byte alignment of superblock */
- unsigned bim_kbsize; /* size of superblock in kilobytes */
blkid_probe_t bim_probe; /* probe function */
};
__u32 s_feature_ro_compat;
unsigned char s_uuid[16];
char s_volume_name[16];
+ char s_last_mounted[64];
+ __u32 s_algorithm_usage_bitmap;
+ __u8 s_prealloc_blocks;
+ __u8 s_prealloc_dir_blocks;
+ __u16 s_reserved_gdt_blocks;
+ __u8 s_journal_uuid[16];
+ __u32 s_journal_inum;
+ __u32 s_journal_dev;
+ __u32 s_last_orphan;
+ __u32 s_hash_seed[4];
+ __u8 s_def_hash_version;
+ __u8 s_jnl_backup_type;
+ __u16 s_reserved_word_pad;
+ __u32 s_default_mount_opts;
+ __u32 s_first_meta_bg;
+ __u32 s_mkfs_time;
+ __u32 s_jnl_blocks[17];
+ __u32 s_reserved[172];
};
#define EXT3_FEATURE_COMPAT_HAS_JOURNAL 0x00000004
#define EXT3_FEATURE_INCOMPAT_RECOVER 0x00000004
__u32 xs_blocksize;
__u64 xs_dblocks;
__u64 xs_rblocks;
- __u32 xs_dummy1[8];
+ __u32 xs_dummy1[2];
unsigned char xs_uuid[16];
__u32 xs_dummy2[15];
char xs_fname[12];
char rs_label[16];
};
+struct reiser4_super_block {
+ unsigned char rs4_magic[16];
+ __u16 rs4_dummy[2];
+ unsigned char rs4_uuid[16];
+ unsigned char rs4_label[16];
+ __u64 rs4_dummy2;
+};
+
+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];
/* 34*/ __u16 vs_reserved2[6];
/* 40*/ unsigned char vs_unknown[3];
/* 43*/ unsigned char vs_serno[4];
-/* 47*/ char vs_label[11];
+/* 47*/ unsigned char vs_label[11];
/* 52*/ unsigned char vs_magic[8];
/* 5a*/ unsigned char vs_dummy2[164];
/*1fe*/ unsigned char vs_pmagic[2];
/* 20*/ __u32 ms_total_sect;
/* 24*/ unsigned char ms_unknown[3];
/* 27*/ unsigned char ms_serno[4];
-/* 2b*/ char ms_label[11];
+/* 2b*/ unsigned char ms_label[11];
/* 36*/ unsigned char ms_magic[8];
/* 3d*/ unsigned char ms_dummy2[192];
/*1fe*/ unsigned char ms_pmagic[2];
};
+struct vfat_dir_entry {
+ __u8 name[11];
+ __u8 attr;
+ __u16 time_creat;
+ __u16 date_creat;
+ __u16 time_acc;
+ __u16 date_acc;
+ __u16 cluster_high;
+ __u16 time_write;
+ __u16 date_write;
+ __u16 cluster_low;
+ __u32 size;
+};
+
+/* maximum number of clusters */
+#define FAT12_MAX 0xFF4
+#define FAT16_MAX 0xFFF4
+#define FAT32_MAX 0x0FFFFFF6
+
struct minix_super_block {
__u16 ms_ninodes;
__u16 ms_nzones;
__u32 ms_zones;
};
-struct swap_header {
- char sh_bootbits[1024];
- unsigned int sh_version;
- unsigned int sh_last_page;
- unsigned int sh_nr_badpages;
- char sh_label[16];
-};
-
struct mdp_superblock_s {
__u32 md_magic;
__u32 major_version;
__u32 h_blksize;
};
-#ifndef le32_to_cpu /* Assume if one is defined, all are defined */
-#define X16_to_cpu(x) ((__u16)((((__u16)(x) & 0x00ffU) << 8) | \
- (((__u16)(x) & 0xff00U) >> 8)))
-#define X32_to_cpu(x) ((__u32)((((__u32)(x) & 0x000000ffU) << 24) | \
- (((__u32)(x) & 0x0000ff00U) << 8) | \
- (((__u32)(x) & 0x00ff0000U) >> 8) | \
- (((__u32)(x) & 0xff000000U) >> 24)))
-#define X64_to_cpu(x) ((__u64)((((__u64)(x) & 0x00000000000000ffULL) << 56) | \
- (((__u64)(x) & 0x000000000000ff00ULL) << 40) | \
- (((__u64)(x) & 0x0000000000ff0000ULL) << 24) | \
- (((__u64)(x) & 0x00000000ff000000ULL) << 8) | \
- (((__u64)(x) & 0x000000ff00000000ULL) >> 8) | \
- (((__u64)(x) & 0x0000ff0000000000ULL) >> 24) | \
- (((__u64)(x) & 0x00ff000000000000ULL) >> 40) | \
- (((__u64)(x) & 0xff00000000000000ULL) >> 56)))
-#if __BYTE_ORDER == __BIG_ENDIAN
-#define le16_to_cpu(x) X16_to_cpu(x)
-#define le32_to_cpu(x) X32_to_cpu(x)
-#define le64_to_cpu(x) X64_to_cpu(x)
-#define be16_to_cpu(x) (x)
-#define be32_to_cpu(x) (x)
-#define be64_to_cpu(x) (x)
+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
+
+struct iso_volume_descriptor {
+ unsigned char vd_type;
+ unsigned char vd_id[5];
+ unsigned char vd_version;
+ unsigned char flags;
+ unsigned char system_id[32];
+ unsigned char volume_id[32];
+ unsigned char unused[8];
+ unsigned char space_size[8];
+ unsigned char escape_sequences[8];
+};
+
+/* Common gfs/gfs2 constants: */
+#define GFS_MAGIC 0x01161970
+#define GFS_DEFAULT_BSIZE 4096
+#define GFS_SUPERBLOCK_OFFSET (0x10 * GFS_DEFAULT_BSIZE)
+#define GFS_METATYPE_SB 1
+#define GFS_FORMAT_SB 100
+#define GFS_LOCKNAME_LEN 64
+
+/* gfs1 constants: */
+#define GFS_FORMAT_FS 1309
+#define GFS_FORMAT_MULTI 1401
+/* gfs2 constants: */
+#define GFS2_FORMAT_FS 1801
+#define GFS2_FORMAT_MULTI 1900
+
+struct gfs2_meta_header {
+ __u32 mh_magic;
+ __u32 mh_type;
+ __u64 __pad0; /* Was generation number in gfs1 */
+ __u32 mh_format;
+ __u32 __pad1; /* Was incarnation number in gfs1 */
+};
+
+struct gfs2_inum {
+ __u64 no_formal_ino;
+ __u64 no_addr;
+};
+
+struct gfs2_sb {
+ struct gfs2_meta_header sb_header;
+
+ __u32 sb_fs_format;
+ __u32 sb_multihost_format;
+ __u32 __pad0; /* Was superblock flags in gfs1 */
+
+ __u32 sb_bsize;
+ __u32 sb_bsize_shift;
+ __u32 __pad1; /* Was journal segment size in gfs1 */
+
+ struct gfs2_inum sb_master_dir; /* Was jindex dinode in gfs1 */
+ struct gfs2_inum __pad2; /* Was rindex dinode in gfs1 */
+ struct gfs2_inum sb_root_dir;
+
+ char sb_lockproto[GFS_LOCKNAME_LEN];
+ char sb_locktable[GFS_LOCKNAME_LEN];
+ /* In gfs1, quota and license dinodes followed */
+};
+
+/*
+ * 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
-#define le16_to_cpu(x) (x)
-#define le32_to_cpu(x) (x)
-#define le64_to_cpu(x) (x)
-#define be16_to_cpu(x) X16_to_cpu(x)
-#define be32_to_cpu(x) X32_to_cpu(x)
-#define be64_to_cpu(x) X64_to_cpu(x)
+ __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(val & 0xFFFFFFFFUL)) << 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(val & 0xFFFFFFFFUL)) << 32));
+}
+#endif
+
+
+
+#ifdef WORDS_BIGENDIAN
+#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 */
git://git.whamcloud.com / tools / e2fsprogs.git / blobdiff