2 * linux/include/linux/hfsplus_raw.h
5 * Brad Boyer (flar@pants.nu)
6 * (C) 2003 Ardis Technologies <roman@ardistech.com>
8 * Format of structures on disk
9 * Information taken from Apple Technote #1150 (HFS Plus Volume Format)
13 #ifndef _LINUX_HFSPLUS_RAW_H
14 #define _LINUX_HFSPLUS_RAW_H
16 #include <linux/types.h>
18 #define __packed __attribute__ ((packed))
21 #define HFSPLUS_SECTOR_SIZE 512
22 #define HFSPLUS_SECTOR_SHIFT 9
23 #define HFSPLUS_VOLHEAD_SECTOR 2
24 #define HFSPLUS_VOLHEAD_SIG 0x482b
25 #define HFSPLUS_SUPER_MAGIC 0x482b
26 #define HFSPLUS_CURRENT_VERSION 4
28 #define HFSP_WRAP_MAGIC 0x4244
29 #define HFSP_WRAP_ATTRIB_SLOCK 0x8000
30 #define HFSP_WRAP_ATTRIB_SPARED 0x0200
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
39 #define HFSP_HIDDENDIR_NAME "\xe2\x90\x80\xe2\x90\x80\xe2\x90\x80\xe2\x90\x80HFS+ Private Data"
41 #define HFSP_HARDLINK_TYPE 0x686c6e6b /* 'hlnk' */
42 #define HFSP_HFSPLUS_CREATOR 0x6866732b /* 'hfs+' */
44 #define HFSP_MOUNT_VERSION 0x482b4c78 /* 'H+Lx' */
46 /* Structures used on disk */
48 typedef __be32 hfsplus_cnid;
49 typedef __be16 hfsplus_unichr;
51 /* A "string" as used in filenames, etc. */
52 struct hfsplus_unistr {
54 hfsplus_unichr unicode[255];
57 #define HFSPLUS_MAX_STRLEN 255
59 /* POSIX permissions */
69 #define HFSPLUS_FLG_NODUMP 0x01
70 #define HFSPLUS_FLG_IMMUTABLE 0x02
71 #define HFSPLUS_FLG_APPEND 0x04
73 /* A single contiguous area of a file */
74 struct hfsplus_extent {
78 typedef struct hfsplus_extent hfsplus_extent_rec[8];
80 /* Information for a "Fork" in a file */
81 struct hfsplus_fork_raw {
85 hfsplus_extent_rec extents;
88 /* HFS+ Volume Header */
93 __be32 last_mount_vers;
109 __be32 rsrc_clump_sz;
110 __be32 data_clump_sz;
111 hfsplus_cnid next_cnid;
114 __be64 encodings_bmp;
118 struct hfsplus_fork_raw alloc_file;
119 struct hfsplus_fork_raw ext_file;
120 struct hfsplus_fork_raw cat_file;
121 struct hfsplus_fork_raw attr_file;
122 struct hfsplus_fork_raw start_file;
125 /* HFS+ volume attributes */
126 #define HFSPLUS_VOL_UNMNT (1 << 8)
127 #define HFSPLUS_VOL_SPARE_BLK (1 << 9)
128 #define HFSPLUS_VOL_NOCACHE (1 << 10)
129 #define HFSPLUS_VOL_INCNSTNT (1 << 11)
130 #define HFSPLUS_VOL_NODEID_REUSED (1 << 12)
131 #define HFSPLUS_VOL_JOURNALED (1 << 13)
132 #define HFSPLUS_VOL_SOFTLOCK (1 << 15)
134 /* HFS+ BTree node descriptor */
135 struct hfs_bnode_desc {
144 /* HFS+ BTree node types */
145 #define HFS_NODE_INDEX 0x00
146 #define HFS_NODE_HEADER 0x01
147 #define HFS_NODE_MAP 0x02
148 #define HFS_NODE_LEAF 0xFF
150 /* HFS+ BTree header */
151 struct hfs_btree_header_rec {
169 /* BTree attributes */
170 #define HFS_TREE_BIGKEYS 2
171 #define HFS_TREE_VARIDXKEYS 4
173 /* HFS+ BTree misc info */
174 #define HFSPLUS_TREE_HEAD 0
175 #define HFSPLUS_NODE_MXSZ 32768
177 /* Some special File ID numbers (stolen from hfs.h) */
178 #define HFSPLUS_POR_CNID 1 /* Parent Of the Root */
179 #define HFSPLUS_ROOT_CNID 2 /* ROOT directory */
180 #define HFSPLUS_EXT_CNID 3 /* EXTents B-tree */
181 #define HFSPLUS_CAT_CNID 4 /* CATalog B-tree */
182 #define HFSPLUS_BAD_CNID 5 /* BAD blocks file */
183 #define HFSPLUS_ALLOC_CNID 6 /* ALLOCation file */
184 #define HFSPLUS_START_CNID 7 /* STARTup file */
185 #define HFSPLUS_ATTR_CNID 8 /* ATTRibutes file */
186 #define HFSPLUS_EXCH_CNID 15 /* ExchangeFiles temp id */
187 #define HFSPLUS_FIRSTUSER_CNID 16 /* first available user id */
189 /* HFS+ catalog entry key */
190 struct hfsplus_cat_key {
193 struct hfsplus_unistr name;
197 /* Structs from hfs.h */
211 /* HFS directory info (stolen from hfs.h */
213 struct hfsp_rect frRect;
215 struct hfsp_point frLocation;
220 struct hfsp_point frScroll;
227 /* HFS+ folder data (part of an hfsplus_cat_entry) */
228 struct hfsplus_cat_folder {
234 __be32 content_mod_date;
235 __be32 attribute_mod_date;
238 struct hfsplus_perm permissions;
239 struct DInfo user_info;
240 struct DXInfo finder_info;
241 __be32 text_encoding;
245 /* HFS file info (stolen from hfs.h) */
250 struct hfsp_point fdLocation;
261 /* HFS+ file data (part of a cat_entry) */
262 struct hfsplus_cat_file {
268 __be32 content_mod_date;
269 __be32 attribute_mod_date;
272 struct hfsplus_perm permissions;
273 struct FInfo user_info;
274 struct FXInfo finder_info;
275 __be32 text_encoding;
278 struct hfsplus_fork_raw data_fork;
279 struct hfsplus_fork_raw rsrc_fork;
282 /* File attribute bits */
283 #define HFSPLUS_FILE_LOCKED 0x0001
284 #define HFSPLUS_FILE_THREAD_EXISTS 0x0002
286 /* HFS+ catalog thread (part of a cat_entry) */
287 struct hfsplus_cat_thread {
290 hfsplus_cnid parentID;
291 struct hfsplus_unistr nodeName;
294 #define HFSPLUS_MIN_THREAD_SZ 10
296 /* A data record in the catalog tree */
299 struct hfsplus_cat_folder folder;
300 struct hfsplus_cat_file file;
301 struct hfsplus_cat_thread thread;
302 } __packed hfsplus_cat_entry;
304 /* HFS+ catalog entry type */
305 #define HFSPLUS_FOLDER 0x0001
306 #define HFSPLUS_FILE 0x0002
307 #define HFSPLUS_FOLDER_THREAD 0x0003
308 #define HFSPLUS_FILE_THREAD 0x0004
310 /* HFS+ extents tree key */
311 struct hfsplus_ext_key {
319 #define HFSPLUS_EXT_KEYLEN 12
321 /* HFS+ generic BTree key */
324 struct hfsplus_cat_key cat;
325 struct hfsplus_ext_key ext;
326 } __packed hfsplus_btree_key;