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 38 struct affs_date { 39 __be32 days; 40 __be32 mins; 41 __be32 ticks; 42 }; 43 44 struct affs_short_date { 45 __be16 days; 46 __be16 mins; 47 __be16 ticks; 48 }; 49 50 struct 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 60 struct 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 76 struct 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[]; 84 }; 85 86 struct 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 }; 104 105 struct slink_front 106 { 107 __be32 ptype; 108 __be32 key; 109 __be32 spare1[3]; 110 __be32 checksum; 111 u8 symname[]; /* depends on block size */ 112 }; 113 114 struct 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[]; /* 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