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10#ifndef _LINUX_HFSPLUS_FS_H
11#define _LINUX_HFSPLUS_FS_H
12
13#include <linux/fs.h>
14#include <linux/mutex.h>
15#include <linux/buffer_head.h>
16#include "hfsplus_raw.h"
17
18#define DBG_BNODE_REFS 0x00000001
19#define DBG_BNODE_MOD 0x00000002
20#define DBG_CAT_MOD 0x00000004
21#define DBG_INODE 0x00000008
22#define DBG_SUPER 0x00000010
23#define DBG_EXTENT 0x00000020
24#define DBG_BITMAP 0x00000040
25
26
27
28
29#define DBG_MASK (0)
30
31#define dprint(flg, fmt, args...) \
32 if (flg & DBG_MASK) printk(fmt , ## args)
33
34
35#define HFSPLUS_DEF_CR_TYPE 0x3F3F3F3F
36
37#define HFSPLUS_TYPE_DATA 0x00
38#define HFSPLUS_TYPE_RSRC 0xFF
39
40typedef int (*btree_keycmp)(const hfsplus_btree_key *, const hfsplus_btree_key *);
41
42#define NODE_HASH_SIZE 256
43
44
45struct hfs_btree {
46 struct super_block *sb;
47 struct inode *inode;
48 btree_keycmp keycmp;
49
50 u32 cnid;
51 u32 root;
52 u32 leaf_count;
53 u32 leaf_head;
54 u32 leaf_tail;
55 u32 node_count;
56 u32 free_nodes;
57 u32 attributes;
58
59 unsigned int node_size;
60 unsigned int node_size_shift;
61 unsigned int max_key_len;
62 unsigned int depth;
63
64
65 struct semaphore tree_lock;
66
67 unsigned int pages_per_bnode;
68 spinlock_t hash_lock;
69 struct hfs_bnode *node_hash[NODE_HASH_SIZE];
70 int node_hash_cnt;
71};
72
73struct page;
74
75
76struct hfs_bnode {
77 struct hfs_btree *tree;
78
79 u32 prev;
80 u32 this;
81 u32 next;
82 u32 parent;
83
84 u16 num_recs;
85 u8 type;
86 u8 height;
87
88 struct hfs_bnode *next_hash;
89 unsigned long flags;
90 wait_queue_head_t lock_wq;
91 atomic_t refcnt;
92 unsigned int page_offset;
93 struct page *page[0];
94};
95
96#define HFS_BNODE_LOCK 0
97#define HFS_BNODE_ERROR 1
98#define HFS_BNODE_NEW 2
99#define HFS_BNODE_DIRTY 3
100#define HFS_BNODE_DELETED 4
101
102
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104
105
106struct hfsplus_vh;
107struct hfs_btree;
108
109struct hfsplus_sb_info {
110 struct buffer_head *s_vhbh;
111 struct hfsplus_vh *s_vhdr;
112 struct hfs_btree *ext_tree;
113 struct hfs_btree *cat_tree;
114 struct hfs_btree *attr_tree;
115 struct inode *alloc_file;
116 struct inode *hidden_dir;
117 struct nls_table *nls;
118
119
120 u32 blockoffset;
121 u32 sect_count;
122 int fs_shift;
123
124
125 u32 alloc_blksz;
126 int alloc_blksz_shift;
127 u32 total_blocks;
128 u32 free_blocks;
129 u32 next_alloc;
130 u32 next_cnid;
131 u32 file_count;
132 u32 folder_count;
133 u32 data_clump_blocks, rsrc_clump_blocks;
134
135
136 u32 creator;
137 u32 type;
138
139 umode_t umask;
140 uid_t uid;
141 gid_t gid;
142
143 int part, session;
144
145 unsigned long flags;
146
147 struct hlist_head rsrc_inodes;
148};
149
150#define HFSPLUS_SB_WRITEBACKUP 0x0001
151#define HFSPLUS_SB_NODECOMPOSE 0x0002
152#define HFSPLUS_SB_FORCE 0x0004
153#define HFSPLUS_SB_HFSX 0x0008
154#define HFSPLUS_SB_CASEFOLD 0x0010
155
156
157struct hfsplus_inode_info {
158 struct mutex extents_lock;
159 u32 clump_blocks, alloc_blocks;
160 sector_t fs_blocks;
161
162 hfsplus_extent_rec first_extents;
163 u32 first_blocks;
164 hfsplus_extent_rec cached_extents;
165 u32 cached_start, cached_blocks;
166 atomic_t opencnt;
167
168 struct inode *rsrc_inode;
169 unsigned long flags;
170
171 __be32 create_date;
172
173 u32 dev;
174
175 u8 rootflags;
176 u8 userflags;
177
178 struct list_head open_dir_list;
179 loff_t phys_size;
180 struct inode vfs_inode;
181};
182
183#define HFSPLUS_FLG_RSRC 0x0001
184#define HFSPLUS_FLG_EXT_DIRTY 0x0002
185#define HFSPLUS_FLG_EXT_NEW 0x0004
186
187#define HFSPLUS_IS_DATA(inode) (!(HFSPLUS_I(inode).flags & HFSPLUS_FLG_RSRC))
188#define HFSPLUS_IS_RSRC(inode) (HFSPLUS_I(inode).flags & HFSPLUS_FLG_RSRC)
189
190struct hfs_find_data {
191
192 hfsplus_btree_key *search_key;
193 hfsplus_btree_key *key;
194
195 struct hfs_btree *tree;
196 struct hfs_bnode *bnode;
197
198 int record;
199 int keyoffset, keylength;
200 int entryoffset, entrylength;
201};
202
203struct hfsplus_readdir_data {
204 struct list_head list;
205 struct file *file;
206 struct hfsplus_cat_key key;
207};
208
209#define hfs_btree_open hfsplus_btree_open
210#define hfs_btree_close hfsplus_btree_close
211#define hfs_btree_write hfsplus_btree_write
212#define hfs_bmap_alloc hfsplus_bmap_alloc
213#define hfs_bmap_free hfsplus_bmap_free
214#define hfs_bnode_read hfsplus_bnode_read
215#define hfs_bnode_read_u16 hfsplus_bnode_read_u16
216#define hfs_bnode_read_u8 hfsplus_bnode_read_u8
217#define hfs_bnode_read_key hfsplus_bnode_read_key
218#define hfs_bnode_write hfsplus_bnode_write
219#define hfs_bnode_write_u16 hfsplus_bnode_write_u16
220#define hfs_bnode_clear hfsplus_bnode_clear
221#define hfs_bnode_copy hfsplus_bnode_copy
222#define hfs_bnode_move hfsplus_bnode_move
223#define hfs_bnode_dump hfsplus_bnode_dump
224#define hfs_bnode_unlink hfsplus_bnode_unlink
225#define hfs_bnode_findhash hfsplus_bnode_findhash
226#define hfs_bnode_find hfsplus_bnode_find
227#define hfs_bnode_unhash hfsplus_bnode_unhash
228#define hfs_bnode_free hfsplus_bnode_free
229#define hfs_bnode_create hfsplus_bnode_create
230#define hfs_bnode_get hfsplus_bnode_get
231#define hfs_bnode_put hfsplus_bnode_put
232#define hfs_brec_lenoff hfsplus_brec_lenoff
233#define hfs_brec_keylen hfsplus_brec_keylen
234#define hfs_brec_insert hfsplus_brec_insert
235#define hfs_brec_remove hfsplus_brec_remove
236#define hfs_find_init hfsplus_find_init
237#define hfs_find_exit hfsplus_find_exit
238#define __hfs_brec_find __hplusfs_brec_find
239#define hfs_brec_find hfsplus_brec_find
240#define hfs_brec_read hfsplus_brec_read
241#define hfs_brec_goto hfsplus_brec_goto
242#define hfs_part_find hfsplus_part_find
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250
251#define HFSPLUS_IOC_EXT2_GETFLAGS FS_IOC_GETFLAGS
252#define HFSPLUS_IOC_EXT2_SETFLAGS FS_IOC_SETFLAGS
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259
260int hfsplus_block_allocate(struct super_block *, u32, u32, u32 *);
261int hfsplus_block_free(struct super_block *, u32, u32);
262
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264struct hfs_btree *hfs_btree_open(struct super_block *, u32);
265void hfs_btree_close(struct hfs_btree *);
266void hfs_btree_write(struct hfs_btree *);
267struct hfs_bnode *hfs_bmap_alloc(struct hfs_btree *);
268void hfs_bmap_free(struct hfs_bnode *);
269
270
271void hfs_bnode_read(struct hfs_bnode *, void *, int, int);
272u16 hfs_bnode_read_u16(struct hfs_bnode *, int);
273u8 hfs_bnode_read_u8(struct hfs_bnode *, int);
274void hfs_bnode_read_key(struct hfs_bnode *, void *, int);
275void hfs_bnode_write(struct hfs_bnode *, void *, int, int);
276void hfs_bnode_write_u16(struct hfs_bnode *, int, u16);
277void hfs_bnode_clear(struct hfs_bnode *, int, int);
278void hfs_bnode_copy(struct hfs_bnode *, int,
279 struct hfs_bnode *, int, int);
280void hfs_bnode_move(struct hfs_bnode *, int, int, int);
281void hfs_bnode_dump(struct hfs_bnode *);
282void hfs_bnode_unlink(struct hfs_bnode *);
283struct hfs_bnode *hfs_bnode_findhash(struct hfs_btree *, u32);
284struct hfs_bnode *hfs_bnode_find(struct hfs_btree *, u32);
285void hfs_bnode_unhash(struct hfs_bnode *);
286void hfs_bnode_free(struct hfs_bnode *);
287struct hfs_bnode *hfs_bnode_create(struct hfs_btree *, u32);
288void hfs_bnode_get(struct hfs_bnode *);
289void hfs_bnode_put(struct hfs_bnode *);
290
291
292u16 hfs_brec_lenoff(struct hfs_bnode *, u16, u16 *);
293u16 hfs_brec_keylen(struct hfs_bnode *, u16);
294int hfs_brec_insert(struct hfs_find_data *, void *, int);
295int hfs_brec_remove(struct hfs_find_data *);
296
297
298int hfs_find_init(struct hfs_btree *, struct hfs_find_data *);
299void hfs_find_exit(struct hfs_find_data *);
300int __hfs_brec_find(struct hfs_bnode *, struct hfs_find_data *);
301int hfs_brec_find(struct hfs_find_data *);
302int hfs_brec_read(struct hfs_find_data *, void *, int);
303int hfs_brec_goto(struct hfs_find_data *, int);
304
305
306int hfsplus_cat_case_cmp_key(const hfsplus_btree_key *, const hfsplus_btree_key *);
307int hfsplus_cat_bin_cmp_key(const hfsplus_btree_key *, const hfsplus_btree_key *);
308void hfsplus_cat_build_key(struct super_block *sb, hfsplus_btree_key *, u32, struct qstr *);
309int hfsplus_find_cat(struct super_block *, u32, struct hfs_find_data *);
310int hfsplus_create_cat(u32, struct inode *, struct qstr *, struct inode *);
311int hfsplus_delete_cat(u32, struct inode *, struct qstr *);
312int hfsplus_rename_cat(u32, struct inode *, struct qstr *,
313 struct inode *, struct qstr *);
314
315
316extern const struct inode_operations hfsplus_dir_inode_operations;
317extern const struct file_operations hfsplus_dir_operations;
318
319
320int hfsplus_ext_cmp_key(const hfsplus_btree_key *, const hfsplus_btree_key *);
321void hfsplus_ext_write_extent(struct inode *);
322int hfsplus_get_block(struct inode *, sector_t, struct buffer_head *, int);
323int hfsplus_free_fork(struct super_block *, u32, struct hfsplus_fork_raw *, int);
324int hfsplus_file_extend(struct inode *);
325void hfsplus_file_truncate(struct inode *);
326
327
328extern const struct address_space_operations hfsplus_aops;
329extern const struct address_space_operations hfsplus_btree_aops;
330extern const struct dentry_operations hfsplus_dentry_operations;
331
332void hfsplus_inode_read_fork(struct inode *, struct hfsplus_fork_raw *);
333void hfsplus_inode_write_fork(struct inode *, struct hfsplus_fork_raw *);
334int hfsplus_cat_read_inode(struct inode *, struct hfs_find_data *);
335int hfsplus_cat_write_inode(struct inode *);
336struct inode *hfsplus_new_inode(struct super_block *, int);
337void hfsplus_delete_inode(struct inode *);
338
339
340int hfsplus_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
341 unsigned long arg);
342int hfsplus_setxattr(struct dentry *dentry, const char *name,
343 const void *value, size_t size, int flags);
344ssize_t hfsplus_getxattr(struct dentry *dentry, const char *name,
345 void *value, size_t size);
346ssize_t hfsplus_listxattr(struct dentry *dentry, char *buffer, size_t size);
347
348
349int hfsplus_parse_options(char *, struct hfsplus_sb_info *);
350void hfsplus_fill_defaults(struct hfsplus_sb_info *);
351int hfsplus_show_options(struct seq_file *, struct vfsmount *);
352
353
354struct inode *hfsplus_iget(struct super_block *, unsigned long);
355
356
357extern u16 hfsplus_case_fold_table[];
358extern u16 hfsplus_decompose_table[];
359extern u16 hfsplus_compose_table[];
360
361
362int hfsplus_strcasecmp(const struct hfsplus_unistr *, const struct hfsplus_unistr *);
363int hfsplus_strcmp(const struct hfsplus_unistr *, const struct hfsplus_unistr *);
364int hfsplus_uni2asc(struct super_block *, const struct hfsplus_unistr *, char *, int *);
365int hfsplus_asc2uni(struct super_block *, struct hfsplus_unistr *, const char *, int);
366int hfsplus_hash_dentry(struct dentry *dentry, struct qstr *str);
367int hfsplus_compare_dentry(struct dentry *dentry, struct qstr *s1, struct qstr *s2);
368
369
370int hfsplus_read_wrapper(struct super_block *);
371
372int hfs_part_find(struct super_block *, sector_t *, sector_t *);
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384
385#define HFSPLUS_SB(super) (*(struct hfsplus_sb_info *)(super)->s_fs_info)
386#define HFSPLUS_I(inode) (*list_entry(inode, struct hfsplus_inode_info, vfs_inode))
387
388#if 1
389#define hfsplus_kmap(p) ({ struct page *__p = (p); kmap(__p); })
390#define hfsplus_kunmap(p) ({ struct page *__p = (p); kunmap(__p); __p; })
391#else
392#define hfsplus_kmap(p) kmap(p)
393#define hfsplus_kunmap(p) kunmap(p)
394#endif
395
396#define sb_bread512(sb, sec, data) ({ \
397 struct buffer_head *__bh; \
398 sector_t __block; \
399 loff_t __start; \
400 int __offset; \
401 \
402 __start = (loff_t)(sec) << HFSPLUS_SECTOR_SHIFT;\
403 __block = __start >> (sb)->s_blocksize_bits; \
404 __offset = __start & ((sb)->s_blocksize - 1); \
405 __bh = sb_bread((sb), __block); \
406 if (likely(__bh != NULL)) \
407 data = (void *)(__bh->b_data + __offset);\
408 else \
409 data = NULL; \
410 __bh; \
411})
412
413
414#define __hfsp_mt2ut(t) (be32_to_cpu(t) - 2082844800U)
415#define __hfsp_ut2mt(t) (cpu_to_be32(t + 2082844800U))
416
417
418#define hfsp_mt2ut(t) (struct timespec){ .tv_sec = __hfsp_mt2ut(t) }
419#define hfsp_ut2mt(t) __hfsp_ut2mt((t).tv_sec)
420#define hfsp_now2mt() __hfsp_ut2mt(get_seconds())
421
422#define kdev_t_to_nr(x) (x)
423
424#endif
425
