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1da177e4 LT |
1 | /* |
2 | * linux/include/linux/hfsplus_raw.h | |
3 | * | |
4 | * Copyright (C) 1999 | |
5 | * Brad Boyer (flar@pants.nu) | |
6 | * (C) 2003 Ardis Technologies <roman@ardistech.com> | |
7 | * | |
8 | * Format of structures on disk | |
9 | * Information taken from Apple Technote #1150 (HFS Plus Volume Format) | |
10 | * | |
11 | */ | |
12 | ||
13 | #ifndef _LINUX_HFSPLUS_RAW_H | |
14 | #define _LINUX_HFSPLUS_RAW_H | |
15 | ||
16 | #include <linux/types.h> | |
17 | ||
1da177e4 LT |
18 | /* Some constants */ |
19 | #define HFSPLUS_SECTOR_SIZE 512 | |
20 | #define HFSPLUS_SECTOR_SHIFT 9 | |
21 | #define HFSPLUS_VOLHEAD_SECTOR 2 | |
22 | #define HFSPLUS_VOLHEAD_SIG 0x482b | |
2179d372 | 23 | #define HFSPLUS_VOLHEAD_SIGX 0x4858 |
1da177e4 | 24 | #define HFSPLUS_SUPER_MAGIC 0x482b |
2179d372 DE |
25 | #define HFSPLUS_MIN_VERSION 4 |
26 | #define HFSPLUS_CURRENT_VERSION 5 | |
1da177e4 LT |
27 | |
28 | #define HFSP_WRAP_MAGIC 0x4244 | |
29 | #define HFSP_WRAP_ATTRIB_SLOCK 0x8000 | |
30 | #define HFSP_WRAP_ATTRIB_SPARED 0x0200 | |
31 | ||
32 | #define HFSP_WRAPOFF_SIG 0x00 | |
33 | #define HFSP_WRAPOFF_ATTRIB 0x0A | |
34 | #define HFSP_WRAPOFF_ABLKSIZE 0x14 | |
35 | #define HFSP_WRAPOFF_ABLKSTART 0x1C | |
36 | #define HFSP_WRAPOFF_EMBEDSIG 0x7C | |
37 | #define HFSP_WRAPOFF_EMBEDEXT 0x7E | |
38 | ||
2753cc28 AS |
39 | #define HFSP_HIDDENDIR_NAME \ |
40 | "\xe2\x90\x80\xe2\x90\x80\xe2\x90\x80\xe2\x90\x80HFS+ Private Data" | |
1da177e4 LT |
41 | |
42 | #define HFSP_HARDLINK_TYPE 0x686c6e6b /* 'hlnk' */ | |
43 | #define HFSP_HFSPLUS_CREATOR 0x6866732b /* 'hfs+' */ | |
44 | ||
6b192832 RZ |
45 | #define HFSP_SYMLINK_TYPE 0x736c6e6b /* 'slnk' */ |
46 | #define HFSP_SYMLINK_CREATOR 0x72686170 /* 'rhap' */ | |
47 | ||
1da177e4 LT |
48 | #define HFSP_MOUNT_VERSION 0x482b4c78 /* 'H+Lx' */ |
49 | ||
50 | /* Structures used on disk */ | |
51 | ||
52 | typedef __be32 hfsplus_cnid; | |
53 | typedef __be16 hfsplus_unichr; | |
54 | ||
55 | /* A "string" as used in filenames, etc. */ | |
56 | struct hfsplus_unistr { | |
57 | __be16 length; | |
58 | hfsplus_unichr unicode[255]; | |
59 | } __packed; | |
60 | ||
61 | #define HFSPLUS_MAX_STRLEN 255 | |
62 | ||
63 | /* POSIX permissions */ | |
64 | struct hfsplus_perm { | |
65 | __be32 owner; | |
66 | __be32 group; | |
67 | u8 rootflags; | |
68 | u8 userflags; | |
69 | __be16 mode; | |
70 | __be32 dev; | |
71 | } __packed; | |
72 | ||
73 | #define HFSPLUS_FLG_NODUMP 0x01 | |
74 | #define HFSPLUS_FLG_IMMUTABLE 0x02 | |
75 | #define HFSPLUS_FLG_APPEND 0x04 | |
76 | ||
77 | /* A single contiguous area of a file */ | |
78 | struct hfsplus_extent { | |
79 | __be32 start_block; | |
80 | __be32 block_count; | |
81 | } __packed; | |
82 | typedef struct hfsplus_extent hfsplus_extent_rec[8]; | |
83 | ||
84 | /* Information for a "Fork" in a file */ | |
85 | struct hfsplus_fork_raw { | |
86 | __be64 total_size; | |
87 | __be32 clump_size; | |
88 | __be32 total_blocks; | |
89 | hfsplus_extent_rec extents; | |
90 | } __packed; | |
91 | ||
92 | /* HFS+ Volume Header */ | |
93 | struct hfsplus_vh { | |
94 | __be16 signature; | |
95 | __be16 version; | |
96 | __be32 attributes; | |
97 | __be32 last_mount_vers; | |
98 | u32 reserved; | |
99 | ||
100 | __be32 create_date; | |
101 | __be32 modify_date; | |
102 | __be32 backup_date; | |
103 | __be32 checked_date; | |
104 | ||
105 | __be32 file_count; | |
106 | __be32 folder_count; | |
107 | ||
108 | __be32 blocksize; | |
109 | __be32 total_blocks; | |
110 | __be32 free_blocks; | |
111 | ||
112 | __be32 next_alloc; | |
113 | __be32 rsrc_clump_sz; | |
114 | __be32 data_clump_sz; | |
115 | hfsplus_cnid next_cnid; | |
116 | ||
117 | __be32 write_count; | |
118 | __be64 encodings_bmp; | |
119 | ||
120 | u8 finder_info[32]; | |
121 | ||
122 | struct hfsplus_fork_raw alloc_file; | |
123 | struct hfsplus_fork_raw ext_file; | |
124 | struct hfsplus_fork_raw cat_file; | |
125 | struct hfsplus_fork_raw attr_file; | |
126 | struct hfsplus_fork_raw start_file; | |
127 | } __packed; | |
128 | ||
129 | /* HFS+ volume attributes */ | |
b0b623c3 RZ |
130 | #define HFSPLUS_VOL_UNMNT (1 << 8) |
131 | #define HFSPLUS_VOL_SPARE_BLK (1 << 9) | |
132 | #define HFSPLUS_VOL_NOCACHE (1 << 10) | |
133 | #define HFSPLUS_VOL_INCNSTNT (1 << 11) | |
134 | #define HFSPLUS_VOL_NODEID_REUSED (1 << 12) | |
135 | #define HFSPLUS_VOL_JOURNALED (1 << 13) | |
136 | #define HFSPLUS_VOL_SOFTLOCK (1 << 15) | |
1da177e4 LT |
137 | |
138 | /* HFS+ BTree node descriptor */ | |
139 | struct hfs_bnode_desc { | |
140 | __be32 next; | |
141 | __be32 prev; | |
142 | s8 type; | |
143 | u8 height; | |
144 | __be16 num_recs; | |
145 | u16 reserved; | |
146 | } __packed; | |
147 | ||
148 | /* HFS+ BTree node types */ | |
149 | #define HFS_NODE_INDEX 0x00 | |
150 | #define HFS_NODE_HEADER 0x01 | |
151 | #define HFS_NODE_MAP 0x02 | |
152 | #define HFS_NODE_LEAF 0xFF | |
153 | ||
154 | /* HFS+ BTree header */ | |
155 | struct hfs_btree_header_rec { | |
156 | __be16 depth; | |
157 | __be32 root; | |
158 | __be32 leaf_count; | |
159 | __be32 leaf_head; | |
160 | __be32 leaf_tail; | |
161 | __be16 node_size; | |
162 | __be16 max_key_len; | |
163 | __be32 node_count; | |
164 | __be32 free_nodes; | |
165 | u16 reserved1; | |
166 | __be32 clump_size; | |
167 | u8 btree_type; | |
2179d372 | 168 | u8 key_type; |
1da177e4 LT |
169 | __be32 attributes; |
170 | u32 reserved3[16]; | |
171 | } __packed; | |
172 | ||
173 | /* BTree attributes */ | |
174 | #define HFS_TREE_BIGKEYS 2 | |
175 | #define HFS_TREE_VARIDXKEYS 4 | |
176 | ||
177 | /* HFS+ BTree misc info */ | |
178 | #define HFSPLUS_TREE_HEAD 0 | |
179 | #define HFSPLUS_NODE_MXSZ 32768 | |
180 | ||
181 | /* Some special File ID numbers (stolen from hfs.h) */ | |
182 | #define HFSPLUS_POR_CNID 1 /* Parent Of the Root */ | |
183 | #define HFSPLUS_ROOT_CNID 2 /* ROOT directory */ | |
184 | #define HFSPLUS_EXT_CNID 3 /* EXTents B-tree */ | |
185 | #define HFSPLUS_CAT_CNID 4 /* CATalog B-tree */ | |
186 | #define HFSPLUS_BAD_CNID 5 /* BAD blocks file */ | |
187 | #define HFSPLUS_ALLOC_CNID 6 /* ALLOCation file */ | |
188 | #define HFSPLUS_START_CNID 7 /* STARTup file */ | |
189 | #define HFSPLUS_ATTR_CNID 8 /* ATTRibutes file */ | |
190 | #define HFSPLUS_EXCH_CNID 15 /* ExchangeFiles temp id */ | |
191 | #define HFSPLUS_FIRSTUSER_CNID 16 /* first available user id */ | |
192 | ||
2179d372 DE |
193 | /* btree key type */ |
194 | #define HFSPLUS_KEY_CASEFOLDING 0xCF /* case-insensitive */ | |
195 | #define HFSPLUS_KEY_BINARY 0xBC /* case-sensitive */ | |
196 | ||
1da177e4 LT |
197 | /* HFS+ catalog entry key */ |
198 | struct hfsplus_cat_key { | |
199 | __be16 key_len; | |
200 | hfsplus_cnid parent; | |
201 | struct hfsplus_unistr name; | |
202 | } __packed; | |
203 | ||
9250f925 | 204 | #define HFSPLUS_CAT_KEYLEN (sizeof(struct hfsplus_cat_key)) |
1da177e4 LT |
205 | |
206 | /* Structs from hfs.h */ | |
207 | struct hfsp_point { | |
208 | __be16 v; | |
209 | __be16 h; | |
210 | } __packed; | |
211 | ||
212 | struct hfsp_rect { | |
213 | __be16 top; | |
214 | __be16 left; | |
215 | __be16 bottom; | |
216 | __be16 right; | |
217 | } __packed; | |
218 | ||
219 | ||
220 | /* HFS directory info (stolen from hfs.h */ | |
221 | struct DInfo { | |
222 | struct hfsp_rect frRect; | |
223 | __be16 frFlags; | |
224 | struct hfsp_point frLocation; | |
225 | __be16 frView; | |
226 | } __packed; | |
227 | ||
228 | struct DXInfo { | |
229 | struct hfsp_point frScroll; | |
230 | __be32 frOpenChain; | |
231 | __be16 frUnused; | |
232 | __be16 frComment; | |
233 | __be32 frPutAway; | |
234 | } __packed; | |
235 | ||
236 | /* HFS+ folder data (part of an hfsplus_cat_entry) */ | |
237 | struct hfsplus_cat_folder { | |
238 | __be16 type; | |
239 | __be16 flags; | |
240 | __be32 valence; | |
241 | hfsplus_cnid id; | |
242 | __be32 create_date; | |
243 | __be32 content_mod_date; | |
244 | __be32 attribute_mod_date; | |
245 | __be32 access_date; | |
246 | __be32 backup_date; | |
247 | struct hfsplus_perm permissions; | |
248 | struct DInfo user_info; | |
249 | struct DXInfo finder_info; | |
250 | __be32 text_encoding; | |
251 | u32 reserved; | |
252 | } __packed; | |
253 | ||
254 | /* HFS file info (stolen from hfs.h) */ | |
255 | struct FInfo { | |
256 | __be32 fdType; | |
257 | __be32 fdCreator; | |
258 | __be16 fdFlags; | |
259 | struct hfsp_point fdLocation; | |
260 | __be16 fdFldr; | |
261 | } __packed; | |
262 | ||
263 | struct FXInfo { | |
264 | __be16 fdIconID; | |
265 | u8 fdUnused[8]; | |
266 | __be16 fdComment; | |
267 | __be32 fdPutAway; | |
268 | } __packed; | |
269 | ||
270 | /* HFS+ file data (part of a cat_entry) */ | |
271 | struct hfsplus_cat_file { | |
272 | __be16 type; | |
273 | __be16 flags; | |
274 | u32 reserved1; | |
275 | hfsplus_cnid id; | |
276 | __be32 create_date; | |
277 | __be32 content_mod_date; | |
278 | __be32 attribute_mod_date; | |
279 | __be32 access_date; | |
280 | __be32 backup_date; | |
281 | struct hfsplus_perm permissions; | |
282 | struct FInfo user_info; | |
283 | struct FXInfo finder_info; | |
284 | __be32 text_encoding; | |
285 | u32 reserved2; | |
286 | ||
287 | struct hfsplus_fork_raw data_fork; | |
288 | struct hfsplus_fork_raw rsrc_fork; | |
289 | } __packed; | |
290 | ||
291 | /* File attribute bits */ | |
292 | #define HFSPLUS_FILE_LOCKED 0x0001 | |
293 | #define HFSPLUS_FILE_THREAD_EXISTS 0x0002 | |
294 | ||
295 | /* HFS+ catalog thread (part of a cat_entry) */ | |
296 | struct hfsplus_cat_thread { | |
297 | __be16 type; | |
298 | s16 reserved; | |
299 | hfsplus_cnid parentID; | |
300 | struct hfsplus_unistr nodeName; | |
301 | } __packed; | |
302 | ||
303 | #define HFSPLUS_MIN_THREAD_SZ 10 | |
304 | ||
305 | /* A data record in the catalog tree */ | |
306 | typedef union { | |
307 | __be16 type; | |
308 | struct hfsplus_cat_folder folder; | |
309 | struct hfsplus_cat_file file; | |
310 | struct hfsplus_cat_thread thread; | |
311 | } __packed hfsplus_cat_entry; | |
312 | ||
313 | /* HFS+ catalog entry type */ | |
314 | #define HFSPLUS_FOLDER 0x0001 | |
315 | #define HFSPLUS_FILE 0x0002 | |
316 | #define HFSPLUS_FOLDER_THREAD 0x0003 | |
317 | #define HFSPLUS_FILE_THREAD 0x0004 | |
318 | ||
319 | /* HFS+ extents tree key */ | |
320 | struct hfsplus_ext_key { | |
321 | __be16 key_len; | |
322 | u8 fork_type; | |
323 | u8 pad; | |
324 | hfsplus_cnid cnid; | |
325 | __be32 start_block; | |
326 | } __packed; | |
327 | ||
9250f925 | 328 | #define HFSPLUS_EXT_KEYLEN sizeof(struct hfsplus_ext_key) |
1da177e4 LT |
329 | |
330 | /* HFS+ generic BTree key */ | |
331 | typedef union { | |
332 | __be16 key_len; | |
333 | struct hfsplus_cat_key cat; | |
334 | struct hfsplus_ext_key ext; | |
335 | } __packed hfsplus_btree_key; | |
336 | ||
337 | #endif |