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Commit | Line | Data |
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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
1da177e4 LT |
2 | /* |
3 | * linux/include/linux/hfsplus_fs.h | |
4 | * | |
5 | * Copyright (C) 1999 | |
6 | * Brad Boyer ([email protected]) | |
7 | * (C) 2003 Ardis Technologies <[email protected]> | |
8 | * | |
9 | */ | |
10 | ||
11 | #ifndef _LINUX_HFSPLUS_FS_H | |
12 | #define _LINUX_HFSPLUS_FS_H | |
13 | ||
d6142673 JP |
14 | #ifdef pr_fmt |
15 | #undef pr_fmt | |
16 | #endif | |
17 | ||
18 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt | |
19 | ||
1da177e4 | 20 | #include <linux/fs.h> |
895c23f8 | 21 | #include <linux/mutex.h> |
1da177e4 | 22 | #include <linux/buffer_head.h> |
6596528e | 23 | #include <linux/blkdev.h> |
1da177e4 LT |
24 | #include "hfsplus_raw.h" |
25 | ||
26 | #define DBG_BNODE_REFS 0x00000001 | |
27 | #define DBG_BNODE_MOD 0x00000002 | |
28 | #define DBG_CAT_MOD 0x00000004 | |
29 | #define DBG_INODE 0x00000008 | |
30 | #define DBG_SUPER 0x00000010 | |
31 | #define DBG_EXTENT 0x00000020 | |
32 | #define DBG_BITMAP 0x00000040 | |
324ef39a | 33 | #define DBG_ATTR_MOD 0x00000080 |
1da177e4 | 34 | |
21f2296a AS |
35 | #if 0 |
36 | #define DBG_MASK (DBG_EXTENT|DBG_INODE|DBG_BNODE_MOD) | |
37 | #define DBG_MASK (DBG_BNODE_MOD|DBG_CAT_MOD|DBG_INODE) | |
38 | #define DBG_MASK (DBG_CAT_MOD|DBG_BNODE_REFS|DBG_INODE|DBG_EXTENT) | |
39 | #endif | |
1da177e4 LT |
40 | #define DBG_MASK (0) |
41 | ||
d6142673 JP |
42 | #define hfs_dbg(flg, fmt, ...) \ |
43 | do { \ | |
44 | if (DBG_##flg & DBG_MASK) \ | |
45 | printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__); \ | |
c2b3e1f7 JP |
46 | } while (0) |
47 | ||
d6142673 JP |
48 | #define hfs_dbg_cont(flg, fmt, ...) \ |
49 | do { \ | |
50 | if (DBG_##flg & DBG_MASK) \ | |
51 | pr_cont(fmt, ##__VA_ARGS__); \ | |
c2b3e1f7 | 52 | } while (0) |
1da177e4 LT |
53 | |
54 | /* Runtime config options */ | |
55 | #define HFSPLUS_DEF_CR_TYPE 0x3F3F3F3F /* '????' */ | |
56 | ||
57 | #define HFSPLUS_TYPE_DATA 0x00 | |
58 | #define HFSPLUS_TYPE_RSRC 0xFF | |
59 | ||
2753cc28 AS |
60 | typedef int (*btree_keycmp)(const hfsplus_btree_key *, |
61 | const hfsplus_btree_key *); | |
1da177e4 LT |
62 | |
63 | #define NODE_HASH_SIZE 256 | |
64 | ||
324ef39a VD |
65 | /* B-tree mutex nested subclasses */ |
66 | enum hfsplus_btree_mutex_classes { | |
67 | CATALOG_BTREE_MUTEX, | |
68 | EXTENTS_BTREE_MUTEX, | |
69 | ATTR_BTREE_MUTEX, | |
70 | }; | |
71 | ||
1da177e4 LT |
72 | /* An HFS+ BTree held in memory */ |
73 | struct hfs_btree { | |
74 | struct super_block *sb; | |
75 | struct inode *inode; | |
76 | btree_keycmp keycmp; | |
77 | ||
78 | u32 cnid; | |
79 | u32 root; | |
80 | u32 leaf_count; | |
81 | u32 leaf_head; | |
82 | u32 leaf_tail; | |
83 | u32 node_count; | |
84 | u32 free_nodes; | |
85 | u32 attributes; | |
86 | ||
87 | unsigned int node_size; | |
88 | unsigned int node_size_shift; | |
89 | unsigned int max_key_len; | |
90 | unsigned int depth; | |
91 | ||
467c3d9c | 92 | struct mutex tree_lock; |
1da177e4 LT |
93 | |
94 | unsigned int pages_per_bnode; | |
95 | spinlock_t hash_lock; | |
96 | struct hfs_bnode *node_hash[NODE_HASH_SIZE]; | |
97 | int node_hash_cnt; | |
98 | }; | |
99 | ||
100 | struct page; | |
101 | ||
102 | /* An HFS+ BTree node in memory */ | |
103 | struct hfs_bnode { | |
104 | struct hfs_btree *tree; | |
105 | ||
106 | u32 prev; | |
107 | u32 this; | |
108 | u32 next; | |
109 | u32 parent; | |
110 | ||
111 | u16 num_recs; | |
112 | u8 type; | |
113 | u8 height; | |
114 | ||
115 | struct hfs_bnode *next_hash; | |
116 | unsigned long flags; | |
117 | wait_queue_head_t lock_wq; | |
118 | atomic_t refcnt; | |
119 | unsigned int page_offset; | |
5e01fdff | 120 | struct page *page[]; |
1da177e4 LT |
121 | }; |
122 | ||
123 | #define HFS_BNODE_LOCK 0 | |
124 | #define HFS_BNODE_ERROR 1 | |
125 | #define HFS_BNODE_NEW 2 | |
126 | #define HFS_BNODE_DIRTY 3 | |
127 | #define HFS_BNODE_DELETED 4 | |
128 | ||
95e0d7db VD |
129 | /* |
130 | * Attributes file states | |
131 | */ | |
132 | #define HFSPLUS_EMPTY_ATTR_TREE 0 | |
133 | #define HFSPLUS_CREATING_ATTR_TREE 1 | |
134 | #define HFSPLUS_VALID_ATTR_TREE 2 | |
135 | #define HFSPLUS_FAILED_ATTR_TREE 3 | |
136 | ||
1da177e4 LT |
137 | /* |
138 | * HFS+ superblock info (built from Volume Header on disk) | |
139 | */ | |
140 | ||
141 | struct hfsplus_vh; | |
142 | struct hfs_btree; | |
143 | ||
144 | struct hfsplus_sb_info { | |
6596528e | 145 | void *s_vhdr_buf; |
1da177e4 | 146 | struct hfsplus_vh *s_vhdr; |
6596528e | 147 | void *s_backup_vhdr_buf; |
52399b17 | 148 | struct hfsplus_vh *s_backup_vhdr; |
1da177e4 LT |
149 | struct hfs_btree *ext_tree; |
150 | struct hfs_btree *cat_tree; | |
151 | struct hfs_btree *attr_tree; | |
95e0d7db | 152 | atomic_t attr_tree_state; |
1da177e4 LT |
153 | struct inode *alloc_file; |
154 | struct inode *hidden_dir; | |
155 | struct nls_table *nls; | |
156 | ||
157 | /* Runtime variables */ | |
158 | u32 blockoffset; | |
52399b17 CH |
159 | sector_t part_start; |
160 | sector_t sect_count; | |
1da177e4 LT |
161 | int fs_shift; |
162 | ||
7ac9fb9c | 163 | /* immutable data from the volume header */ |
1da177e4 LT |
164 | u32 alloc_blksz; |
165 | int alloc_blksz_shift; | |
166 | u32 total_blocks; | |
7ac9fb9c CH |
167 | u32 data_clump_blocks, rsrc_clump_blocks; |
168 | ||
169 | /* mutable data from the volume header, protected by alloc_mutex */ | |
1da177e4 | 170 | u32 free_blocks; |
7ac9fb9c CH |
171 | struct mutex alloc_mutex; |
172 | ||
173 | /* mutable data from the volume header, protected by vh_mutex */ | |
1da177e4 LT |
174 | u32 next_cnid; |
175 | u32 file_count; | |
176 | u32 folder_count; | |
7ac9fb9c | 177 | struct mutex vh_mutex; |
1da177e4 LT |
178 | |
179 | /* Config options */ | |
180 | u32 creator; | |
181 | u32 type; | |
182 | ||
183 | umode_t umask; | |
16525e3f EB |
184 | kuid_t uid; |
185 | kgid_t gid; | |
1da177e4 LT |
186 | |
187 | int part, session; | |
1da177e4 | 188 | unsigned long flags; |
9e6c5829 AB |
189 | |
190 | int work_queued; /* non-zero delayed work is queued */ | |
191 | struct delayed_work sync_work; /* FS sync delayed work */ | |
192 | spinlock_t work_lock; /* protects sync_work and work_queued */ | |
1da177e4 LT |
193 | }; |
194 | ||
84adede3 CH |
195 | #define HFSPLUS_SB_WRITEBACKUP 0 |
196 | #define HFSPLUS_SB_NODECOMPOSE 1 | |
197 | #define HFSPLUS_SB_FORCE 2 | |
198 | #define HFSPLUS_SB_HFSX 3 | |
199 | #define HFSPLUS_SB_CASEFOLD 4 | |
34a2d313 | 200 | #define HFSPLUS_SB_NOBARRIER 5 |
1da177e4 | 201 | |
e3494705 CH |
202 | static inline struct hfsplus_sb_info *HFSPLUS_SB(struct super_block *sb) |
203 | { | |
204 | return sb->s_fs_info; | |
205 | } | |
1da177e4 LT |
206 | |
207 | ||
208 | struct hfsplus_inode_info { | |
1da177e4 LT |
209 | atomic_t opencnt; |
210 | ||
7fcc99f4 CH |
211 | /* |
212 | * Extent allocation information, protected by extents_lock. | |
213 | */ | |
214 | u32 first_blocks; | |
215 | u32 clump_blocks; | |
216 | u32 alloc_blocks; | |
217 | u32 cached_start; | |
218 | u32 cached_blocks; | |
219 | hfsplus_extent_rec first_extents; | |
220 | hfsplus_extent_rec cached_extents; | |
b33b7921 | 221 | unsigned int extent_state; |
7fcc99f4 | 222 | struct mutex extents_lock; |
1da177e4 | 223 | |
7fcc99f4 CH |
224 | /* |
225 | * Immutable data. | |
226 | */ | |
227 | struct inode *rsrc_inode; | |
9a4cad95 | 228 | __be32 create_date; |
f6089ff8 CH |
229 | |
230 | /* | |
231 | * Protected by sbi->vh_mutex. | |
232 | */ | |
233 | u32 linkid; | |
1da177e4 | 234 | |
b33b7921 CH |
235 | /* |
236 | * Accessed using atomic bitops. | |
237 | */ | |
238 | unsigned long flags; | |
239 | ||
7fcc99f4 CH |
240 | /* |
241 | * Protected by i_mutex. | |
242 | */ | |
243 | sector_t fs_blocks; | |
722c55d1 | 244 | u8 userflags; /* BSD user file flags */ |
d7d673a5 | 245 | u32 subfolders; /* Subfolder count (HFSX only) */ |
1da177e4 | 246 | struct list_head open_dir_list; |
323ee8fc | 247 | spinlock_t open_dir_lock; |
1da177e4 | 248 | loff_t phys_size; |
7fcc99f4 | 249 | |
1da177e4 LT |
250 | struct inode vfs_inode; |
251 | }; | |
252 | ||
b33b7921 CH |
253 | #define HFSPLUS_EXT_DIRTY 0x0001 |
254 | #define HFSPLUS_EXT_NEW 0x0002 | |
255 | ||
256 | #define HFSPLUS_I_RSRC 0 /* represents a resource fork */ | |
e3494705 CH |
257 | #define HFSPLUS_I_CAT_DIRTY 1 /* has changes in the catalog tree */ |
258 | #define HFSPLUS_I_EXT_DIRTY 2 /* has changes in the extent tree */ | |
259 | #define HFSPLUS_I_ALLOC_DIRTY 3 /* has changes in the allocation file */ | |
324ef39a | 260 | #define HFSPLUS_I_ATTR_DIRTY 4 /* has changes in the attributes tree */ |
1da177e4 | 261 | |
b33b7921 CH |
262 | #define HFSPLUS_IS_RSRC(inode) \ |
263 | test_bit(HFSPLUS_I_RSRC, &HFSPLUS_I(inode)->flags) | |
1da177e4 | 264 | |
e3494705 CH |
265 | static inline struct hfsplus_inode_info *HFSPLUS_I(struct inode *inode) |
266 | { | |
db6172c4 | 267 | return container_of(inode, struct hfsplus_inode_info, vfs_inode); |
e3494705 | 268 | } |
1da177e4 | 269 | |
e3494705 CH |
270 | /* |
271 | * Mark an inode dirty, and also mark the btree in which the | |
272 | * specific type of metadata is stored. | |
273 | * For data or metadata that gets written back by into the catalog btree | |
274 | * by hfsplus_write_inode a plain mark_inode_dirty call is enough. | |
275 | */ | |
276 | static inline void hfsplus_mark_inode_dirty(struct inode *inode, | |
277 | unsigned int flag) | |
278 | { | |
279 | set_bit(flag, &HFSPLUS_I(inode)->flags); | |
280 | mark_inode_dirty(inode); | |
281 | } | |
1da177e4 LT |
282 | |
283 | struct hfs_find_data { | |
284 | /* filled by caller */ | |
285 | hfsplus_btree_key *search_key; | |
286 | hfsplus_btree_key *key; | |
287 | /* filled by find */ | |
288 | struct hfs_btree *tree; | |
289 | struct hfs_bnode *bnode; | |
290 | /* filled by findrec */ | |
291 | int record; | |
292 | int keyoffset, keylength; | |
293 | int entryoffset, entrylength; | |
294 | }; | |
295 | ||
296 | struct hfsplus_readdir_data { | |
297 | struct list_head list; | |
298 | struct file *file; | |
299 | struct hfsplus_cat_key key; | |
300 | }; | |
301 | ||
6596528e SF |
302 | /* |
303 | * Find minimum acceptible I/O size for an hfsplus sb. | |
304 | */ | |
305 | static inline unsigned short hfsplus_min_io_size(struct super_block *sb) | |
306 | { | |
307 | return max_t(unsigned short, bdev_logical_block_size(sb->s_bdev), | |
308 | HFSPLUS_SECTOR_SIZE); | |
309 | } | |
310 | ||
1da177e4 LT |
311 | #define hfs_btree_open hfsplus_btree_open |
312 | #define hfs_btree_close hfsplus_btree_close | |
313 | #define hfs_btree_write hfsplus_btree_write | |
d92915c3 | 314 | #define hfs_bmap_reserve hfsplus_bmap_reserve |
1da177e4 LT |
315 | #define hfs_bmap_alloc hfsplus_bmap_alloc |
316 | #define hfs_bmap_free hfsplus_bmap_free | |
317 | #define hfs_bnode_read hfsplus_bnode_read | |
318 | #define hfs_bnode_read_u16 hfsplus_bnode_read_u16 | |
319 | #define hfs_bnode_read_u8 hfsplus_bnode_read_u8 | |
320 | #define hfs_bnode_read_key hfsplus_bnode_read_key | |
321 | #define hfs_bnode_write hfsplus_bnode_write | |
322 | #define hfs_bnode_write_u16 hfsplus_bnode_write_u16 | |
323 | #define hfs_bnode_clear hfsplus_bnode_clear | |
324 | #define hfs_bnode_copy hfsplus_bnode_copy | |
325 | #define hfs_bnode_move hfsplus_bnode_move | |
326 | #define hfs_bnode_dump hfsplus_bnode_dump | |
327 | #define hfs_bnode_unlink hfsplus_bnode_unlink | |
328 | #define hfs_bnode_findhash hfsplus_bnode_findhash | |
329 | #define hfs_bnode_find hfsplus_bnode_find | |
330 | #define hfs_bnode_unhash hfsplus_bnode_unhash | |
331 | #define hfs_bnode_free hfsplus_bnode_free | |
332 | #define hfs_bnode_create hfsplus_bnode_create | |
333 | #define hfs_bnode_get hfsplus_bnode_get | |
334 | #define hfs_bnode_put hfsplus_bnode_put | |
335 | #define hfs_brec_lenoff hfsplus_brec_lenoff | |
336 | #define hfs_brec_keylen hfsplus_brec_keylen | |
337 | #define hfs_brec_insert hfsplus_brec_insert | |
338 | #define hfs_brec_remove hfsplus_brec_remove | |
339 | #define hfs_find_init hfsplus_find_init | |
340 | #define hfs_find_exit hfsplus_find_exit | |
324ef39a | 341 | #define __hfs_brec_find __hfsplus_brec_find |
1da177e4 LT |
342 | #define hfs_brec_find hfsplus_brec_find |
343 | #define hfs_brec_read hfsplus_brec_read | |
344 | #define hfs_brec_goto hfsplus_brec_goto | |
345 | #define hfs_part_find hfsplus_part_find | |
346 | ||
a051f71c MG |
347 | /* |
348 | * hfs+-specific ioctl for making the filesystem bootable | |
349 | */ | |
350 | #define HFSPLUS_IOC_BLESS _IO('h', 0x80) | |
351 | ||
324ef39a VD |
352 | typedef int (*search_strategy_t)(struct hfs_bnode *, |
353 | struct hfs_find_data *, | |
354 | int *, int *, int *); | |
355 | ||
1da177e4 LT |
356 | /* |
357 | * Functions in any *.c used in other files | |
358 | */ | |
359 | ||
324ef39a | 360 | /* attributes.c */ |
c11e614d | 361 | int __init hfsplus_create_attr_tree_cache(void); |
324ef39a | 362 | void hfsplus_destroy_attr_tree_cache(void); |
ffbc0671 SA |
363 | int hfsplus_attr_bin_cmp_key(const hfsplus_btree_key *k1, |
364 | const hfsplus_btree_key *k2); | |
365 | int hfsplus_attr_build_key(struct super_block *sb, hfsplus_btree_key *key, | |
366 | u32 cnid, const char *name); | |
324ef39a | 367 | hfsplus_attr_entry *hfsplus_alloc_attr_entry(void); |
ffbc0671 SA |
368 | void hfsplus_destroy_attr_entry(hfsplus_attr_entry *entry); |
369 | int hfsplus_find_attr(struct super_block *sb, u32 cnid, const char *name, | |
370 | struct hfs_find_data *fd); | |
324ef39a | 371 | int hfsplus_attr_exists(struct inode *inode, const char *name); |
ffbc0671 SA |
372 | int hfsplus_create_attr(struct inode *inode, const char *name, |
373 | const void *value, size_t size); | |
374 | int hfsplus_delete_attr(struct inode *inode, const char *name); | |
324ef39a VD |
375 | int hfsplus_delete_all_attrs(struct inode *dir, u32 cnid); |
376 | ||
1da177e4 | 377 | /* bitmap.c */ |
ffbc0671 SA |
378 | int hfsplus_block_allocate(struct super_block *sb, u32 size, u32 offset, |
379 | u32 *max); | |
380 | int hfsplus_block_free(struct super_block *sb, u32 offset, u32 count); | |
1da177e4 LT |
381 | |
382 | /* btree.c */ | |
ffbc0671 SA |
383 | u32 hfsplus_calc_btree_clump_size(u32 block_size, u32 node_size, u64 sectors, |
384 | int file_id); | |
385 | struct hfs_btree *hfs_btree_open(struct super_block *sb, u32 id); | |
386 | void hfs_btree_close(struct hfs_btree *tree); | |
387 | int hfs_btree_write(struct hfs_btree *tree); | |
d92915c3 | 388 | int hfs_bmap_reserve(struct hfs_btree *tree, int rsvd_nodes); |
ffbc0671 SA |
389 | struct hfs_bnode *hfs_bmap_alloc(struct hfs_btree *tree); |
390 | void hfs_bmap_free(struct hfs_bnode *node); | |
1da177e4 LT |
391 | |
392 | /* bnode.c */ | |
ffbc0671 SA |
393 | void hfs_bnode_read(struct hfs_bnode *node, void *buf, int off, int len); |
394 | u16 hfs_bnode_read_u16(struct hfs_bnode *node, int off); | |
395 | u8 hfs_bnode_read_u8(struct hfs_bnode *node, int off); | |
396 | void hfs_bnode_read_key(struct hfs_bnode *node, void *key, int off); | |
397 | void hfs_bnode_write(struct hfs_bnode *node, void *buf, int off, int len); | |
398 | void hfs_bnode_write_u16(struct hfs_bnode *node, int off, u16 data); | |
399 | void hfs_bnode_clear(struct hfs_bnode *node, int off, int len); | |
400 | void hfs_bnode_copy(struct hfs_bnode *dst_node, int dst, | |
401 | struct hfs_bnode *src_node, int src, int len); | |
402 | void hfs_bnode_move(struct hfs_bnode *node, int dst, int src, int len); | |
403 | void hfs_bnode_dump(struct hfs_bnode *node); | |
404 | void hfs_bnode_unlink(struct hfs_bnode *node); | |
405 | struct hfs_bnode *hfs_bnode_findhash(struct hfs_btree *tree, u32 cnid); | |
406 | void hfs_bnode_unhash(struct hfs_bnode *node); | |
407 | struct hfs_bnode *hfs_bnode_find(struct hfs_btree *tree, u32 num); | |
408 | void hfs_bnode_free(struct hfs_bnode *node); | |
409 | struct hfs_bnode *hfs_bnode_create(struct hfs_btree *tree, u32 num); | |
410 | void hfs_bnode_get(struct hfs_bnode *node); | |
411 | void hfs_bnode_put(struct hfs_bnode *node); | |
412 | bool hfs_bnode_need_zeroout(struct hfs_btree *tree); | |
1da177e4 LT |
413 | |
414 | /* brec.c */ | |
ffbc0671 SA |
415 | u16 hfs_brec_lenoff(struct hfs_bnode *node, u16 rec, u16 *off); |
416 | u16 hfs_brec_keylen(struct hfs_bnode *node, u16 rec); | |
417 | int hfs_brec_insert(struct hfs_find_data *fd, void *entry, int entry_len); | |
418 | int hfs_brec_remove(struct hfs_find_data *fd); | |
1da177e4 LT |
419 | |
420 | /* bfind.c */ | |
ffbc0671 SA |
421 | int hfs_find_init(struct hfs_btree *tree, struct hfs_find_data *fd); |
422 | void hfs_find_exit(struct hfs_find_data *fd); | |
423 | int hfs_find_1st_rec_by_cnid(struct hfs_bnode *bnode, struct hfs_find_data *fd, | |
424 | int *begin, int *end, int *cur_rec); | |
425 | int hfs_find_rec_by_key(struct hfs_bnode *bnode, struct hfs_find_data *fd, | |
426 | int *begin, int *end, int *cur_rec); | |
427 | int __hfs_brec_find(struct hfs_bnode *bnode, struct hfs_find_data *fd, | |
428 | search_strategy_t rec_found); | |
429 | int hfs_brec_find(struct hfs_find_data *fd, search_strategy_t do_key_compare); | |
430 | int hfs_brec_read(struct hfs_find_data *fd, void *rec, int rec_len); | |
431 | int hfs_brec_goto(struct hfs_find_data *fd, int cnt); | |
1da177e4 LT |
432 | |
433 | /* catalog.c */ | |
ffbc0671 SA |
434 | int hfsplus_cat_case_cmp_key(const hfsplus_btree_key *k1, |
435 | const hfsplus_btree_key *k2); | |
436 | int hfsplus_cat_bin_cmp_key(const hfsplus_btree_key *k1, | |
437 | const hfsplus_btree_key *k2); | |
89ac9b4d | 438 | int hfsplus_cat_build_key(struct super_block *sb, hfsplus_btree_key *key, |
b5cce521 | 439 | u32 parent, const struct qstr *str); |
89ac9b4d SS |
440 | void hfsplus_cat_build_key_with_cnid(struct super_block *sb, |
441 | hfsplus_btree_key *key, u32 parent); | |
90e61690 | 442 | void hfsplus_cat_set_perms(struct inode *inode, struct hfsplus_perm *perms); |
ffbc0671 SA |
443 | int hfsplus_find_cat(struct super_block *sb, u32 cnid, |
444 | struct hfs_find_data *fd); | |
b5cce521 | 445 | int hfsplus_create_cat(u32 cnid, struct inode *dir, const struct qstr *str, |
ffbc0671 | 446 | struct inode *inode); |
b5cce521 AV |
447 | int hfsplus_delete_cat(u32 cnid, struct inode *dir, const struct qstr *str); |
448 | int hfsplus_rename_cat(u32 cnid, struct inode *src_dir, const struct qstr *src_name, | |
449 | struct inode *dst_dir, const struct qstr *dst_name); | |
1da177e4 | 450 | |
4b0a8da7 AB |
451 | /* dir.c */ |
452 | extern const struct inode_operations hfsplus_dir_inode_operations; | |
453 | extern const struct file_operations hfsplus_dir_operations; | |
454 | ||
1da177e4 | 455 | /* extents.c */ |
ffbc0671 SA |
456 | int hfsplus_ext_cmp_key(const hfsplus_btree_key *k1, |
457 | const hfsplus_btree_key *k2); | |
458 | int hfsplus_ext_write_extent(struct inode *inode); | |
459 | int hfsplus_get_block(struct inode *inode, sector_t iblock, | |
460 | struct buffer_head *bh_result, int create); | |
461 | int hfsplus_free_fork(struct super_block *sb, u32 cnid, | |
462 | struct hfsplus_fork_raw *fork, int type); | |
463 | int hfsplus_file_extend(struct inode *inode, bool zeroout); | |
464 | void hfsplus_file_truncate(struct inode *inode); | |
1da177e4 LT |
465 | |
466 | /* inode.c */ | |
f5e54d6e CH |
467 | extern const struct address_space_operations hfsplus_aops; |
468 | extern const struct address_space_operations hfsplus_btree_aops; | |
e16404ed | 469 | extern const struct dentry_operations hfsplus_dentry_operations; |
1da177e4 | 470 | |
07a31f72 MWO |
471 | int hfsplus_write_begin(struct file *file, struct address_space *mapping, |
472 | loff_t pos, unsigned len, struct page **pagep, void **fsdata); | |
b0cd38c7 EF |
473 | struct inode *hfsplus_new_inode(struct super_block *sb, struct inode *dir, |
474 | umode_t mode); | |
ffbc0671 SA |
475 | void hfsplus_delete_inode(struct inode *inode); |
476 | void hfsplus_inode_read_fork(struct inode *inode, | |
477 | struct hfsplus_fork_raw *fork); | |
478 | void hfsplus_inode_write_fork(struct inode *inode, | |
479 | struct hfsplus_fork_raw *fork); | |
480 | int hfsplus_cat_read_inode(struct inode *inode, struct hfs_find_data *fd); | |
481 | int hfsplus_cat_write_inode(struct inode *inode); | |
549c7297 CB |
482 | int hfsplus_getattr(struct user_namespace *mnt_userns, const struct path *path, |
483 | struct kstat *stat, u32 request_mask, | |
484 | unsigned int query_flags); | |
02c24a82 JB |
485 | int hfsplus_file_fsync(struct file *file, loff_t start, loff_t end, |
486 | int datasync); | |
9cbae748 MS |
487 | int hfsplus_fileattr_get(struct dentry *dentry, struct fileattr *fa); |
488 | int hfsplus_fileattr_set(struct user_namespace *mnt_userns, | |
489 | struct dentry *dentry, struct fileattr *fa); | |
1da177e4 LT |
490 | |
491 | /* ioctl.c */ | |
7cc4bcc6 | 492 | long hfsplus_ioctl(struct file *filp, unsigned int cmd, unsigned long arg); |
1da177e4 LT |
493 | |
494 | /* options.c */ | |
ffbc0671 | 495 | void hfsplus_fill_defaults(struct hfsplus_sb_info *opts); |
6f80dfe5 | 496 | int hfsplus_parse_options_remount(char *input, int *force); |
ffbc0671 SA |
497 | int hfsplus_parse_options(char *input, struct hfsplus_sb_info *sbi); |
498 | int hfsplus_show_options(struct seq_file *seq, struct dentry *root); | |
499 | ||
500 | /* part_tbl.c */ | |
501 | int hfs_part_find(struct super_block *sb, sector_t *part_start, | |
502 | sector_t *part_size); | |
1da177e4 | 503 | |
63525391 | 504 | /* super.c */ |
ffbc0671 | 505 | struct inode *hfsplus_iget(struct super_block *sb, unsigned long ino); |
9e6c5829 | 506 | void hfsplus_mark_mdb_dirty(struct super_block *sb); |
63525391 | 507 | |
1da177e4 LT |
508 | /* tables.c */ |
509 | extern u16 hfsplus_case_fold_table[]; | |
510 | extern u16 hfsplus_decompose_table[]; | |
511 | extern u16 hfsplus_compose_table[]; | |
512 | ||
513 | /* unicode.c */ | |
ffbc0671 SA |
514 | int hfsplus_strcasecmp(const struct hfsplus_unistr *s1, |
515 | const struct hfsplus_unistr *s2); | |
516 | int hfsplus_strcmp(const struct hfsplus_unistr *s1, | |
517 | const struct hfsplus_unistr *s2); | |
518 | int hfsplus_uni2asc(struct super_block *sb, const struct hfsplus_unistr *ustr, | |
519 | char *astr, int *len_p); | |
520 | int hfsplus_asc2uni(struct super_block *sb, struct hfsplus_unistr *ustr, | |
521 | int max_unistr_len, const char *astr, int len); | |
da53be12 | 522 | int hfsplus_hash_dentry(const struct dentry *dentry, struct qstr *str); |
6fa67e70 | 523 | int hfsplus_compare_dentry(const struct dentry *dentry, unsigned int len, |
ffbc0671 | 524 | const char *str, const struct qstr *name); |
1da177e4 LT |
525 | |
526 | /* wrapper.c */ | |
ffbc0671 | 527 | int hfsplus_submit_bio(struct super_block *sb, sector_t sector, void *buf, |
67ed2596 | 528 | void **data, int op, int op_flags); |
ffbc0671 | 529 | int hfsplus_read_wrapper(struct super_block *sb); |
1da177e4 | 530 | |
4ddfc3dc AB |
531 | /* |
532 | * time helpers: convert between 1904-base and 1970-base timestamps | |
533 | * | |
534 | * HFS+ implementations are highly inconsistent, this one matches the | |
535 | * traditional behavior of 64-bit Linux, giving the most useful | |
536 | * time range between 1970 and 2106, by treating any on-disk timestamp | |
537 | * under HFSPLUS_UTC_OFFSET (Jan 1 1970) as a time between 2040 and 2106. | |
538 | */ | |
539 | #define HFSPLUS_UTC_OFFSET 2082844800U | |
540 | ||
541 | static inline time64_t __hfsp_mt2ut(__be32 mt) | |
542 | { | |
543 | time64_t ut = (u32)(be32_to_cpu(mt) - HFSPLUS_UTC_OFFSET); | |
544 | ||
545 | return ut; | |
546 | } | |
547 | ||
548 | static inline __be32 __hfsp_ut2mt(time64_t ut) | |
549 | { | |
550 | return cpu_to_be32(lower_32_bits(ut) + HFSPLUS_UTC_OFFSET); | |
551 | } | |
1da177e4 LT |
552 | |
553 | /* compatibility */ | |
4ddfc3dc | 554 | #define hfsp_mt2ut(t) (struct timespec64){ .tv_sec = __hfsp_mt2ut(t) } |
1da177e4 | 555 | #define hfsp_ut2mt(t) __hfsp_ut2mt((t).tv_sec) |
4ddfc3dc | 556 | #define hfsp_now2mt() __hfsp_ut2mt(ktime_get_real_seconds()) |
1da177e4 | 557 | |
1da177e4 | 558 | #endif |