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[1]; |
84 | }; |
85 | |
86 | struct affs_tail { |
87 | __be32 spare1; |
88 | __be16 uid; |
89 | __be16 gid; |
90 | __be32 protect; |
91 | __be32 size; |
92 | u8 [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[1]; /* 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[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 | |