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    Annotation of /tags/mkinitrd-6_1_12/nash/linux_fs.h

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    Revision 939 - (hide annotations) (download)
    Tue Nov 17 21:24:51 2009 UTC (14 years, 6 months ago) by niro
    File MIME type: text/plain
    File size: 6213 byte(s) 
    tagged 'mkinitrd-6_1_12'
    1 niro 532 /* Including <linux/fs.h> became more and more painful.
    2     Below a very abbreviated version of some declarations,
    3     only designed to be able to check a magic number
    4     in case no filesystem type was given. */
    5    
    6     #ifndef BLKGETSIZE
    7     #ifndef _IO
    8     /* pre-1.3.45 */
    9     #define BLKGETSIZE 0x1260 /* return device size */
    10     #else
    11     /* same on i386, m68k, arm; different on alpha, mips, sparc, ppc */
    12     #define BLKGETSIZE _IO(0x12,96)
    13     #endif
    14     #endif
    15    
    16     #define MINIX_SUPER_MAGIC 0x137F /* original minix fs */
    17     #define MINIX_SUPER_MAGIC2 0x138F /* minix fs, 30 char names */
    18     struct minix_super_block {
    19     unsigned char s_dummy[16];
    20     unsigned char s_magic[2];
    21     };
    22     #define minixmagic(s) ((unsigned int) s.s_magic[0] + (((unsigned int) s.s_magic[1]) << 8))
    23    
    24     #define ISODCL(from, to) (to - from + 1)
    25     #define ISO_STANDARD_ID "CD001"
    26     struct iso_volume_descriptor {
    27     char type[ISODCL(1,1)]; /* 711 */
    28     char id[ISODCL(2,6)];
    29     char version[ISODCL(7,7)];
    30     char data[ISODCL(8,2048)];
    31     };
    32    
    33     #define HS_STANDARD_ID "CDROM"
    34     struct hs_volume_descriptor {
    35     char foo[ISODCL ( 1, 8)]; /* 733 */
    36     char type[ISODCL ( 9, 9)]; /* 711 */
    37     char id[ISODCL ( 10, 14)];
    38     char version[ISODCL ( 15, 15)]; /* 711 */
    39     char data[ISODCL(16,2048)];
    40     };
    41    
    42     #define EXT_SUPER_MAGIC 0x137D
    43     struct ext_super_block {
    44     unsigned char s_dummy[56];
    45     unsigned char s_magic[2];
    46     };
    47     #define extmagic(s) ((unsigned int) s.s_magic[0] + (((unsigned int) s.s_magic[1]) << 8))
    48    
    49     #define EXT2_PRE_02B_MAGIC 0xEF51
    50     #define EXT2_SUPER_MAGIC 0xEF53
    51     #define EXT3_FEATURE_COMPAT_HAS_JOURNAL 0x0004
    52     struct ext2_super_block {
    53     unsigned char s_dummy1[56];
    54     unsigned char s_magic[2];
    55     unsigned char s_dummy2[34];
    56     unsigned char s_feature_compat[4];
    57     unsigned char s_feature_incompat[4];
    58     unsigned char s_feature_ro_compat[4];
    59     unsigned char s_uuid[16];
    60     unsigned char s_volume_name[16];
    61     unsigned char s_dummy3[88];
    62     unsigned char s_journal_inum[4]; /* ext3 only */
    63     };
    64     #define ext2magic(s) ((unsigned int) s.s_magic[0] + (((unsigned int) s.s_magic[1]) << 8))
    65    
    66     struct reiserfs_super_block
    67     {
    68     unsigned char s_block_count[4];
    69     unsigned char s_free_blocks[4];
    70     unsigned char s_root_block[4];
    71     unsigned char s_journal_block[4];
    72     unsigned char s_journal_dev[4];
    73     unsigned char s_orig_journal_size[4];
    74     unsigned char s_journal_trans_max[4];
    75     unsigned char s_journal_block_count[4];
    76     unsigned char s_journal_max_batch[4];
    77     unsigned char s_journal_max_commit_age[4];
    78     unsigned char s_journal_max_trans_age[4];
    79     unsigned char s_blocksize[2];
    80     unsigned char s_oid_maxsize[2];
    81     unsigned char s_oid_cursize[2];
    82     unsigned char s_state[2];
    83     unsigned char s_magic[12];
    84     };
    85     #define REISERFS_SUPER_MAGIC_STRING "ReIsErFs"
    86     #define REISER2FS_SUPER_MAGIC_STRING "ReIsEr2Fs"
    87     #define REISERFS_DISK_OFFSET_IN_BYTES (64 * 1024)
    88     /* the spot for the super in versions 3.5 - 3.5.10 (inclusive) */
    89     #define REISERFS_OLD_DISK_OFFSET_IN_BYTES (8 * 1024)
    90    
    91     #define _XIAFS_SUPER_MAGIC 0x012FD16D
    92     struct xiafs_super_block {
    93     unsigned char s_boot_segment[512]; /* 1st sector reserved for boot */
    94     unsigned char s_dummy[60];
    95     unsigned char s_magic[4];
    96     };
    97     #define xiafsmagic(s) ((unsigned int) s.s_magic[0] + (((unsigned int) s.s_magic[1]) << 8) + \
    98     (((unsigned int) s.s_magic[2]) << 16) + \
    99     (((unsigned int) s.s_magic[3]) << 24))
    100    
    101     /* From jj@sunsite.ms.mff.cuni.cz Mon Mar 23 15:19:05 1998 */
    102     #define UFS_SUPER_MAGIC 0x00011954
    103     struct ufs_super_block {
    104     unsigned char s_dummy[0x55c];
    105     unsigned char s_magic[4];
    106     };
    107     #define ufsmagic(s) ((unsigned int) s.s_magic[0] + (((unsigned int) s.s_magic[1]) << 8) + \
    108     (((unsigned int) s.s_magic[2]) << 16) + \
    109     (((unsigned int) s.s_magic[3]) << 24))
    110    
    111     /* From Richard.Russon@ait.co.uk Wed Feb 24 08:05:27 1999 */
    112     #define NTFS_SUPER_MAGIC "NTFS"
    113     struct ntfs_super_block {
    114     unsigned char s_dummy[3];
    115     unsigned char s_magic[4];
    116     };
    117    
    118     /* From inspection of a few FAT filesystems - aeb */
    119     /* Unfortunately I find almost the same thing on an extended partition;
    120     it looks like a primary has some directory entries where the extended
    121     has a partition table: IO.SYS, MSDOS.SYS, WINBOOT.SYS */
    122     struct fat_super_block {
    123     unsigned char s_dummy[3];
    124     unsigned char s_os[8]; /* "MSDOS5.0" or "MSWIN4.0" or "MSWIN4.1" */
    125     /* mtools-3.9.4 writes "MTOOL394" */
    126     unsigned char s_dummy2[32];
    127     unsigned char s_label[11]; /* for DOS? */
    128     unsigned char s_fs[8]; /* "FAT12 " or "FAT16 " or all zero */
    129     /* OS/2 BM has "FAT " here. */
    130     unsigned char s_dummy3[9];
    131     unsigned char s_label2[11]; /* for Windows? */
    132     unsigned char s_fs2[8]; /* garbage or "FAT32 " */
    133     };
    134    
    135     #define XFS_SUPER_MAGIC "XFSB"
    136     struct xfs_super_block {
    137     unsigned char s_magic[4];
    138     unsigned char s_dummy[28];
    139     unsigned char s_uuid[16];
    140     unsigned char s_dummy2[60];
    141     unsigned char s_fname[12];
    142     };
    143    
    144     #define CRAMFS_SUPER_MAGIC 0x28cd3d45
    145     struct cramfs_super_block {
    146     unsigned char s_magic[4];
    147     unsigned char s_dummy[12];
    148     unsigned char s_id[16];
    149     };
    150     #define cramfsmagic(s) ((unsigned int) s.s_magic[0] + (((unsigned int) s.s_magic[1]) << 8) + \
    151     (((unsigned int) s.s_magic[2]) << 16) + \
    152     (((unsigned int) s.s_magic[3]) << 24))
    153    
    154     #define HFS_SUPER_MAGIC 0x4244
    155     struct hfs_super_block {
    156     unsigned char s_magic[2];
    157     unsigned char s_dummy[18];
    158     unsigned char s_blksize[4];
    159     };
    160     #define hfsmagic(s) ((unsigned int) s.s_magic[0] + (((unsigned int) s.s_magic[1]) << 8))
    161     #define hfsblksize(s) ((unsigned int) s.s_blksize[0] + \
    162     (((unsigned int) s.s_blksize[1]) << 8) + \
    163     (((unsigned int) s.s_blksize[2]) << 16) + \
    164     (((unsigned int) s.s_blksize[3]) << 24))
    165    
    166     #define HPFS_SUPER_MAGIC 0xf995e849
    167     struct hpfs_super_block {
    168     unsigned char s_magic[4];
    169     unsigned char s_magic2[4];
    170     };
    171     #define hpfsmagic(s) ((unsigned int) s.s_magic[0] + (((unsigned int) s.s_magic[1]) << 8) + \
    172     (((unsigned int) s.s_magic[2]) << 16) + \
    173     (((unsigned int) s.s_magic[3]) << 24))
    174    
    175     struct adfs_super_block {
    176     unsigned char s_dummy[448];
    177     unsigned char s_blksize[1];
    178     unsigned char s_dummy2[62];
    179     unsigned char s_checksum[1];
    180     };
    181     #define adfsblksize(s) ((unsigned int) s.s_blksize[0])