LXR linux/fs/affs/amigaffs.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef AMIGAFFS_H
   3#define AMIGAFFS_H
   4
   5#include <linux/types.h>
   6#include <asm/byteorder.h>
   7
   8#define FS_OFS          0x444F5300
   9#define FS_FFS          0x444F5301
  10#define FS_INTLOFS      0x444F5302
  11#define FS_INTLFFS      0x444F5303
  12#define FS_DCOFS        0x444F5304
  13#define FS_DCFFS        0x444F5305
  14#define MUFS_FS         0x6d754653   /* 'muFS' */
  15#define MUFS_OFS        0x6d754600   /* 'muF\0' */
  16#define MUFS_FFS        0x6d754601   /* 'muF\1' */
  17#define MUFS_INTLOFS    0x6d754602   /* 'muF\2' */
  18#define MUFS_INTLFFS    0x6d754603   /* 'muF\3' */
  19#define MUFS_DCOFS      0x6d754604   /* 'muF\4' */
  20#define MUFS_DCFFS      0x6d754605   /* 'muF\5' */
  21
  22#define T_SHORT         2
  23#define T_LIST          16
  24#define T_DATA          8
  25
  26#define ST_LINKFILE     -4
  27#define ST_FILE         -3
  28#define ST_ROOT         1
  29#define ST_USERDIR      2
  30#define ST_SOFTLINK     3
  31#define ST_LINKDIR      4
  32
  33#define AFFS_ROOT_BMAPS         25
  34
  35/* Seconds since Amiga epoch of 1978/01/01 to UNIX */
  36#define AFFS_EPOCH_DELTA ((8 * 365 + 2) * 86400LL)
  37
  38struct affs_date {
  39        __be32 days;
  40        __be32 mins;
  41        __be32 ticks;
  42};
  43
  44struct affs_short_date {
  45        __be16 days;
  46        __be16 mins;
  47        __be16 ticks;
  48};
  49
  50struct affs_root_head {
  51        __be32 ptype;
  52        __be32 spare1;
  53        __be32 spare2;
  54        __be32 hash_size;
  55        __be32 spare3;
  56        __be32 checksum;
  57        __be32 hashtable[1];
  58};
  59
  60struct affs_root_tail {
  61        __be32 bm_flag;
  62        __be32 bm_blk[AFFS_ROOT_BMAPS];
  63        __be32 bm_ext;
  64        struct affs_date root_change;
  65        u8 disk_name[32];
  66        __be32 spare1;
  67        __be32 spare2;
  68        struct affs_date disk_change;
  69        struct affs_date disk_create;
  70        __be32 spare3;
  71        __be32 spare4;
  72        __be32 dcache;
  73        __be32 stype;
  74};
  75
  76struct affs_head {
  77        __be32 ptype;
  78        __be32 key;
  79        __be32 block_count;
  80        __be32 spare1;
  81        __be32 first_data;
  82        __be32 checksum;
  83        __be32 table[1];
  84};
  85
  86struct affs_tail {
  87        __be32 spare1;
  88        __be16 uid;
  89        __be16 gid;
  90        __be32 protect;
  91        __be32 size;
  92        u8 comment[92];
  93        struct affs_date change;
  94        u8 name[32];
  95        __be32 spare2;
  96        __be32 original;
  97        __be32 link_chain;
  98        __be32 spare[5];
  99        __be32 hash_chain;
 100        __be32 parent;
 101        __be32 extension;
 102        __be32 stype;
 103};
 104
 105struct slink_front
 106{
 107        __be32 ptype;
 108        __be32 key;
 109        __be32 spare1[3];
 110        __be32 checksum;
 111        u8 symname[1];  /* depends on block size */
 112};
 113
 114struct affs_data_head
 115{
 116        __be32 ptype;
 117        __be32 key;
 118        __be32 sequence;
 119        __be32 size;
 120        __be32 next;
 121        __be32 checksum;
 122        u8 data[1];     /* depends on block size */
 123};
 124
 125/* Permission bits */
 126
 127#define FIBF_OTR_READ           0x8000
 128#define FIBF_OTR_WRITE          0x4000
 129#define FIBF_OTR_EXECUTE        0x2000
 130#define FIBF_OTR_DELETE         0x1000
 131#define FIBF_GRP_READ           0x0800
 132#define FIBF_GRP_WRITE          0x0400
 133#define FIBF_GRP_EXECUTE        0x0200
 134#define FIBF_GRP_DELETE         0x0100
 135
 136#define FIBF_HIDDEN             0x0080
 137#define FIBF_SCRIPT             0x0040
 138#define FIBF_PURE               0x0020          /* no use under linux */
 139#define FIBF_ARCHIVED           0x0010          /* never set, always cleared on write */
 140#define FIBF_NOREAD             0x0008          /* 0 means allowed */
 141#define FIBF_NOWRITE            0x0004          /* 0 means allowed */
 142#define FIBF_NOEXECUTE          0x0002          /* 0 means allowed, ignored under linux */
 143#define FIBF_NODELETE           0x0001          /* 0 means allowed */
 144
 145#define FIBF_OWNER              0x000F          /* Bits pertaining to owner */
 146#define FIBF_MASK               0xEE0E          /* Bits modified by Linux */
 147
 148#endif
 149