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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
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
Linus Torvalds1da177e2005-04-16 15:20:36 -070018/* 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
David Elliott2179d372006-01-18 17:43:08 -080023#define HFSPLUS_VOLHEAD_SIGX 0x4858
Linus Torvalds1da177e2005-04-16 15:20:36 -070024#define HFSPLUS_SUPER_MAGIC 0x482b
David Elliott2179d372006-01-18 17:43:08 -080025#define HFSPLUS_MIN_VERSION 4
26#define HFSPLUS_CURRENT_VERSION 5
Linus Torvalds1da177e2005-04-16 15:20:36 -070027
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
39#define HFSP_HIDDENDIR_NAME "\xe2\x90\x80\xe2\x90\x80\xe2\x90\x80\xe2\x90\x80HFS+ Private Data"
40
41#define HFSP_HARDLINK_TYPE 0x686c6e6b /* 'hlnk' */
42#define HFSP_HFSPLUS_CREATOR 0x6866732b /* 'hfs+' */
43
Roman Zippel6b192832006-01-18 17:43:12 -080044#define HFSP_SYMLINK_TYPE 0x736c6e6b /* 'slnk' */
45#define HFSP_SYMLINK_CREATOR 0x72686170 /* 'rhap' */
46
Linus Torvalds1da177e2005-04-16 15:20:36 -070047#define HFSP_MOUNT_VERSION 0x482b4c78 /* 'H+Lx' */
48
49/* Structures used on disk */
50
51typedef __be32 hfsplus_cnid;
52typedef __be16 hfsplus_unichr;
53
54/* A "string" as used in filenames, etc. */
55struct hfsplus_unistr {
56 __be16 length;
57 hfsplus_unichr unicode[255];
58} __packed;
59
60#define HFSPLUS_MAX_STRLEN 255
61
62/* POSIX permissions */
63struct hfsplus_perm {
64 __be32 owner;
65 __be32 group;
66 u8 rootflags;
67 u8 userflags;
68 __be16 mode;
69 __be32 dev;
70} __packed;
71
72#define HFSPLUS_FLG_NODUMP 0x01
73#define HFSPLUS_FLG_IMMUTABLE 0x02
74#define HFSPLUS_FLG_APPEND 0x04
75
76/* A single contiguous area of a file */
77struct hfsplus_extent {
78 __be32 start_block;
79 __be32 block_count;
80} __packed;
81typedef struct hfsplus_extent hfsplus_extent_rec[8];
82
83/* Information for a "Fork" in a file */
84struct hfsplus_fork_raw {
85 __be64 total_size;
86 __be32 clump_size;
87 __be32 total_blocks;
88 hfsplus_extent_rec extents;
89} __packed;
90
91/* HFS+ Volume Header */
92struct hfsplus_vh {
93 __be16 signature;
94 __be16 version;
95 __be32 attributes;
96 __be32 last_mount_vers;
97 u32 reserved;
98
99 __be32 create_date;
100 __be32 modify_date;
101 __be32 backup_date;
102 __be32 checked_date;
103
104 __be32 file_count;
105 __be32 folder_count;
106
107 __be32 blocksize;
108 __be32 total_blocks;
109 __be32 free_blocks;
110
111 __be32 next_alloc;
112 __be32 rsrc_clump_sz;
113 __be32 data_clump_sz;
114 hfsplus_cnid next_cnid;
115
116 __be32 write_count;
117 __be64 encodings_bmp;
118
119 u8 finder_info[32];
120
121 struct hfsplus_fork_raw alloc_file;
122 struct hfsplus_fork_raw ext_file;
123 struct hfsplus_fork_raw cat_file;
124 struct hfsplus_fork_raw attr_file;
125 struct hfsplus_fork_raw start_file;
126} __packed;
127
128/* HFS+ volume attributes */
Roman Zippelb0b623c2005-11-29 19:34:41 -0800129#define HFSPLUS_VOL_UNMNT (1 << 8)
130#define HFSPLUS_VOL_SPARE_BLK (1 << 9)
131#define HFSPLUS_VOL_NOCACHE (1 << 10)
132#define HFSPLUS_VOL_INCNSTNT (1 << 11)
133#define HFSPLUS_VOL_NODEID_REUSED (1 << 12)
134#define HFSPLUS_VOL_JOURNALED (1 << 13)
135#define HFSPLUS_VOL_SOFTLOCK (1 << 15)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700136
137/* HFS+ BTree node descriptor */
138struct hfs_bnode_desc {
139 __be32 next;
140 __be32 prev;
141 s8 type;
142 u8 height;
143 __be16 num_recs;
144 u16 reserved;
145} __packed;
146
147/* HFS+ BTree node types */
148#define HFS_NODE_INDEX 0x00
149#define HFS_NODE_HEADER 0x01
150#define HFS_NODE_MAP 0x02
151#define HFS_NODE_LEAF 0xFF
152
153/* HFS+ BTree header */
154struct hfs_btree_header_rec {
155 __be16 depth;
156 __be32 root;
157 __be32 leaf_count;
158 __be32 leaf_head;
159 __be32 leaf_tail;
160 __be16 node_size;
161 __be16 max_key_len;
162 __be32 node_count;
163 __be32 free_nodes;
164 u16 reserved1;
165 __be32 clump_size;
166 u8 btree_type;
David Elliott2179d372006-01-18 17:43:08 -0800167 u8 key_type;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700168 __be32 attributes;
169 u32 reserved3[16];
170} __packed;
171
172/* BTree attributes */
173#define HFS_TREE_BIGKEYS 2
174#define HFS_TREE_VARIDXKEYS 4
175
176/* HFS+ BTree misc info */
177#define HFSPLUS_TREE_HEAD 0
178#define HFSPLUS_NODE_MXSZ 32768
179
180/* Some special File ID numbers (stolen from hfs.h) */
181#define HFSPLUS_POR_CNID 1 /* Parent Of the Root */
182#define HFSPLUS_ROOT_CNID 2 /* ROOT directory */
183#define HFSPLUS_EXT_CNID 3 /* EXTents B-tree */
184#define HFSPLUS_CAT_CNID 4 /* CATalog B-tree */
185#define HFSPLUS_BAD_CNID 5 /* BAD blocks file */
186#define HFSPLUS_ALLOC_CNID 6 /* ALLOCation file */
187#define HFSPLUS_START_CNID 7 /* STARTup file */
188#define HFSPLUS_ATTR_CNID 8 /* ATTRibutes file */
189#define HFSPLUS_EXCH_CNID 15 /* ExchangeFiles temp id */
190#define HFSPLUS_FIRSTUSER_CNID 16 /* first available user id */
191
David Elliott2179d372006-01-18 17:43:08 -0800192/* btree key type */
193#define HFSPLUS_KEY_CASEFOLDING 0xCF /* case-insensitive */
194#define HFSPLUS_KEY_BINARY 0xBC /* case-sensitive */
195
Linus Torvalds1da177e2005-04-16 15:20:36 -0700196/* HFS+ catalog entry key */
197struct hfsplus_cat_key {
198 __be16 key_len;
199 hfsplus_cnid parent;
200 struct hfsplus_unistr name;
201} __packed;
202
203
204/* Structs from hfs.h */
205struct hfsp_point {
206 __be16 v;
207 __be16 h;
208} __packed;
209
210struct hfsp_rect {
211 __be16 top;
212 __be16 left;
213 __be16 bottom;
214 __be16 right;
215} __packed;
216
217
218/* HFS directory info (stolen from hfs.h */
219struct DInfo {
220 struct hfsp_rect frRect;
221 __be16 frFlags;
222 struct hfsp_point frLocation;
223 __be16 frView;
224} __packed;
225
226struct DXInfo {
227 struct hfsp_point frScroll;
228 __be32 frOpenChain;
229 __be16 frUnused;
230 __be16 frComment;
231 __be32 frPutAway;
232} __packed;
233
234/* HFS+ folder data (part of an hfsplus_cat_entry) */
235struct hfsplus_cat_folder {
236 __be16 type;
237 __be16 flags;
238 __be32 valence;
239 hfsplus_cnid id;
240 __be32 create_date;
241 __be32 content_mod_date;
242 __be32 attribute_mod_date;
243 __be32 access_date;
244 __be32 backup_date;
245 struct hfsplus_perm permissions;
246 struct DInfo user_info;
247 struct DXInfo finder_info;
248 __be32 text_encoding;
249 u32 reserved;
250} __packed;
251
252/* HFS file info (stolen from hfs.h) */
253struct FInfo {
254 __be32 fdType;
255 __be32 fdCreator;
256 __be16 fdFlags;
257 struct hfsp_point fdLocation;
258 __be16 fdFldr;
259} __packed;
260
261struct FXInfo {
262 __be16 fdIconID;
263 u8 fdUnused[8];
264 __be16 fdComment;
265 __be32 fdPutAway;
266} __packed;
267
268/* HFS+ file data (part of a cat_entry) */
269struct hfsplus_cat_file {
270 __be16 type;
271 __be16 flags;
272 u32 reserved1;
273 hfsplus_cnid id;
274 __be32 create_date;
275 __be32 content_mod_date;
276 __be32 attribute_mod_date;
277 __be32 access_date;
278 __be32 backup_date;
279 struct hfsplus_perm permissions;
280 struct FInfo user_info;
281 struct FXInfo finder_info;
282 __be32 text_encoding;
283 u32 reserved2;
284
285 struct hfsplus_fork_raw data_fork;
286 struct hfsplus_fork_raw rsrc_fork;
287} __packed;
288
289/* File attribute bits */
290#define HFSPLUS_FILE_LOCKED 0x0001
291#define HFSPLUS_FILE_THREAD_EXISTS 0x0002
292
293/* HFS+ catalog thread (part of a cat_entry) */
294struct hfsplus_cat_thread {
295 __be16 type;
296 s16 reserved;
297 hfsplus_cnid parentID;
298 struct hfsplus_unistr nodeName;
299} __packed;
300
301#define HFSPLUS_MIN_THREAD_SZ 10
302
303/* A data record in the catalog tree */
304typedef union {
305 __be16 type;
306 struct hfsplus_cat_folder folder;
307 struct hfsplus_cat_file file;
308 struct hfsplus_cat_thread thread;
309} __packed hfsplus_cat_entry;
310
311/* HFS+ catalog entry type */
312#define HFSPLUS_FOLDER 0x0001
313#define HFSPLUS_FILE 0x0002
314#define HFSPLUS_FOLDER_THREAD 0x0003
315#define HFSPLUS_FILE_THREAD 0x0004
316
317/* HFS+ extents tree key */
318struct hfsplus_ext_key {
319 __be16 key_len;
320 u8 fork_type;
321 u8 pad;
322 hfsplus_cnid cnid;
323 __be32 start_block;
324} __packed;
325
326#define HFSPLUS_EXT_KEYLEN 12
327
328/* HFS+ generic BTree key */
329typedef union {
330 __be16 key_len;
331 struct hfsplus_cat_key cat;
332 struct hfsplus_ext_key ext;
333} __packed hfsplus_btree_key;
334
335#endif