include/minix.h

   1 #ifndef UTIL_LINUX_MINIX_H
   2 #define UTIL_LINUX_MINIX_H
   3
   4 #include <stdint.h>
   5
   6 struct minix_inode {
   7         uint16_t i_mode;
   8         uint16_t i_uid;
   9         uint32_t i_size;
  10         uint32_t i_time;
  11         uint8_t  i_gid;
  12         uint8_t  i_nlinks;
  13         uint16_t i_zone[9];
  14 };
  15
  16 struct minix2_inode {
  17         uint16_t i_mode;
  18         uint16_t i_nlinks;
  19         uint16_t i_uid;
  20         uint16_t i_gid;
  21         uint32_t i_size;
  22         uint32_t i_atime;
  23         uint32_t i_mtime;
  24         uint32_t i_ctime;
  25         uint32_t i_zone[10];
  26 };
  27
  28 struct minix_super_block {
  29         uint16_t s_ninodes;
  30         uint16_t s_nzones;
  31         uint16_t s_imap_blocks;
  32         uint16_t s_zmap_blocks;
  33         uint16_t s_firstdatazone;
  34         uint16_t s_log_zone_size;
  35         uint32_t s_max_size;
  36         uint16_t s_magic;
  37         uint16_t s_state;
  38         uint32_t s_zones;
  39 };
  40
  41 /* V3 minix super-block data on disk */
  42 struct minix3_super_block {
  43         uint32_t s_ninodes;
  44         uint16_t s_pad0;
  45         uint16_t s_imap_blocks;
  46         uint16_t s_zmap_blocks;
  47         uint16_t s_firstdatazone;
  48         uint16_t s_log_zone_size;
  49         uint16_t s_pad1;
  50         uint32_t s_max_size;
  51         uint32_t s_zones;
  52         uint16_t s_magic;
  53         uint16_t s_pad2;
  54         uint16_t s_blocksize;
  55         uint8_t  s_disk_version;
  56 };
  57
  58 /*
  59  * Minix subpartitions are always within primary dos partition.
  60  */
  61 #define MINIX_MAXPARTITIONS  4
  62
  63 #define MINIX_BLOCK_SIZE_BITS 10
  64 #define MINIX_BLOCK_SIZE     (1 << MINIX_BLOCK_SIZE_BITS)
  65
  66 #define MINIX_NAME_MAX       255             /* # chars in a file name */
  67 #define MINIX_MAX_INODES     65535
  68
  69 #define MINIX_INODES_PER_BLOCK ((MINIX_BLOCK_SIZE)/(sizeof (struct minix_inode)))
  70 #define MINIX2_INODES_PER_BLOCK ((MINIX_BLOCK_SIZE)/(sizeof (struct minix2_inode)))
  71
  72 /* minix_super_block.s_state */
  73 #define MINIX_VALID_FS       0x0001          /* Clean fs. */
  74 #define MINIX_ERROR_FS       0x0002          /* fs has errors. */
  75
  76
  77 #define MINIX_SUPER_MAGIC    0x137F          /* minix V1 fs, 14 char names */
  78 #define MINIX_SUPER_MAGIC2   0x138F          /* minix V1 fs, 30 char names */
  79
  80 #define MINIX2_SUPER_MAGIC   0x2468          /* minix V2 fs, 14 char names */
  81 #define MINIX2_SUPER_MAGIC2  0x2478          /* minix V2 fs, 30 char names */
  82
  83 #define MINIX3_SUPER_MAGIC   0x4d5a          /* minix V3 fs (60 char names) */
  84
  85 #endif /* UTIL_LINUX_MINIX_H */