blob: a3f03b24746376ddfcb8bac254613334ae4747b9 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * linux/include/linux/hfsplus_fs.h
3 *
4 * Copyright (C) 1999
5 * Brad Boyer (flar@pants.nu)
6 * (C) 2003 Ardis Technologies <roman@ardistech.com>
7 *
8 */
9
10#ifndef _LINUX_HFSPLUS_FS_H
11#define _LINUX_HFSPLUS_FS_H
12
Joe Perchesd6142672013-04-30 15:27:55 -070013#ifdef pr_fmt
14#undef pr_fmt
15#endif
16
17#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
18
Linus Torvalds1da177e2005-04-16 15:20:36 -070019#include <linux/fs.h>
Matthias Kaehlcke895c23f2008-07-25 01:46:36 -070020#include <linux/mutex.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070021#include <linux/buffer_head.h>
Seth Forshee65965282011-07-18 08:06:23 -070022#include <linux/blkdev.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070023#include "hfsplus_raw.h"
24
25#define DBG_BNODE_REFS 0x00000001
26#define DBG_BNODE_MOD 0x00000002
27#define DBG_CAT_MOD 0x00000004
28#define DBG_INODE 0x00000008
29#define DBG_SUPER 0x00000010
30#define DBG_EXTENT 0x00000020
31#define DBG_BITMAP 0x00000040
Vyacheslav Dubeyko324ef392013-02-27 17:03:04 -080032#define DBG_ATTR_MOD 0x00000080
Vyacheslav Dubeyko2c920572013-09-11 14:24:28 -070033#define DBG_ACL_MOD 0x00000100
Linus Torvalds1da177e2005-04-16 15:20:36 -070034
Anton Salikhmetov21f22962010-12-16 18:08:39 +020035#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
Linus Torvalds1da177e2005-04-16 15:20:36 -070040#define DBG_MASK (0)
41
Joe Perchesd6142672013-04-30 15:27:55 -070042#define hfs_dbg(flg, fmt, ...) \
43do { \
44 if (DBG_##flg & DBG_MASK) \
45 printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__); \
Joe Perchesc2b3e1f2013-04-30 15:27:54 -070046} while (0)
47
Joe Perchesd6142672013-04-30 15:27:55 -070048#define hfs_dbg_cont(flg, fmt, ...) \
49do { \
50 if (DBG_##flg & DBG_MASK) \
51 pr_cont(fmt, ##__VA_ARGS__); \
Joe Perchesc2b3e1f2013-04-30 15:27:54 -070052} while (0)
Linus Torvalds1da177e2005-04-16 15:20:36 -070053
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
Anton Salikhmetov2753cc22010-12-16 18:08:38 +020060typedef int (*btree_keycmp)(const hfsplus_btree_key *,
61 const hfsplus_btree_key *);
Linus Torvalds1da177e2005-04-16 15:20:36 -070062
63#define NODE_HASH_SIZE 256
64
Vyacheslav Dubeyko324ef392013-02-27 17:03:04 -080065/* B-tree mutex nested subclasses */
66enum hfsplus_btree_mutex_classes {
67 CATALOG_BTREE_MUTEX,
68 EXTENTS_BTREE_MUTEX,
69 ATTR_BTREE_MUTEX,
70};
71
Linus Torvalds1da177e2005-04-16 15:20:36 -070072/* An HFS+ BTree held in memory */
73struct 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
Thomas Gleixner467c3d92010-10-01 05:46:52 +020092 struct mutex tree_lock;
Linus Torvalds1da177e2005-04-16 15:20:36 -070093
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
100struct page;
101
102/* An HFS+ BTree node in memory */
103struct 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;
120 struct page *page[0];
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
129/*
Vyacheslav Dubeyko95e0d7d2013-11-12 15:11:09 -0800130 * 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
137/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700138 * HFS+ superblock info (built from Volume Header on disk)
139 */
140
141struct hfsplus_vh;
142struct hfs_btree;
143
144struct hfsplus_sb_info {
Seth Forshee65965282011-07-18 08:06:23 -0700145 void *s_vhdr_buf;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700146 struct hfsplus_vh *s_vhdr;
Seth Forshee65965282011-07-18 08:06:23 -0700147 void *s_backup_vhdr_buf;
Christoph Hellwig52399b12010-11-23 14:37:47 +0100148 struct hfsplus_vh *s_backup_vhdr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700149 struct hfs_btree *ext_tree;
150 struct hfs_btree *cat_tree;
151 struct hfs_btree *attr_tree;
Vyacheslav Dubeyko95e0d7d2013-11-12 15:11:09 -0800152 atomic_t attr_tree_state;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700153 struct inode *alloc_file;
154 struct inode *hidden_dir;
155 struct nls_table *nls;
156
157 /* Runtime variables */
158 u32 blockoffset;
Christoph Hellwig52399b12010-11-23 14:37:47 +0100159 sector_t part_start;
160 sector_t sect_count;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700161 int fs_shift;
162
Christoph Hellwig7ac9fb92010-10-01 05:45:08 +0200163 /* immutable data from the volume header */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700164 u32 alloc_blksz;
165 int alloc_blksz_shift;
166 u32 total_blocks;
Christoph Hellwig7ac9fb92010-10-01 05:45:08 +0200167 u32 data_clump_blocks, rsrc_clump_blocks;
168
169 /* mutable data from the volume header, protected by alloc_mutex */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700170 u32 free_blocks;
Christoph Hellwig7ac9fb92010-10-01 05:45:08 +0200171 struct mutex alloc_mutex;
172
173 /* mutable data from the volume header, protected by vh_mutex */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700174 u32 next_cnid;
175 u32 file_count;
176 u32 folder_count;
Christoph Hellwig7ac9fb92010-10-01 05:45:08 +0200177 struct mutex vh_mutex;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700178
179 /* Config options */
180 u32 creator;
181 u32 type;
182
183 umode_t umask;
Eric W. Biederman16525e32012-02-07 16:27:17 -0800184 kuid_t uid;
185 kgid_t gid;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700186
187 int part, session;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700188 unsigned long flags;
Artem Bityutskiy9e6c5822012-07-12 17:26:31 +0300189
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 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700193};
194
Christoph Hellwig84adede2010-10-01 05:45:20 +0200195#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
Christoph Hellwig34a2d312010-11-23 14:38:21 +0100200#define HFSPLUS_SB_NOBARRIER 5
Linus Torvalds1da177e2005-04-16 15:20:36 -0700201
Christoph Hellwige3494702010-11-23 14:38:15 +0100202static inline struct hfsplus_sb_info *HFSPLUS_SB(struct super_block *sb)
203{
204 return sb->s_fs_info;
205}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700206
207
208struct hfsplus_inode_info {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700209 atomic_t opencnt;
210
Christoph Hellwig7fcc99f2010-10-01 05:46:31 +0200211 /*
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;
Christoph Hellwigb33b7922010-11-23 14:38:13 +0100221 unsigned int extent_state;
Christoph Hellwig7fcc99f2010-10-01 05:46:31 +0200222 struct mutex extents_lock;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700223
Christoph Hellwig7fcc99f2010-10-01 05:46:31 +0200224 /*
225 * Immutable data.
226 */
227 struct inode *rsrc_inode;
Roman Zippel9a4cad92006-01-18 17:43:09 -0800228 __be32 create_date;
Christoph Hellwigf6089ff2010-10-14 09:54:28 -0400229
230 /*
231 * Protected by sbi->vh_mutex.
232 */
233 u32 linkid;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700234
Christoph Hellwig7fcc99f2010-10-01 05:46:31 +0200235 /*
Christoph Hellwigb33b7922010-11-23 14:38:13 +0100236 * Accessed using atomic bitops.
237 */
238 unsigned long flags;
239
240 /*
Christoph Hellwig7fcc99f2010-10-01 05:46:31 +0200241 * Protected by i_mutex.
242 */
243 sector_t fs_blocks;
Christoph Hellwig722c55d2010-10-14 09:54:33 -0400244 u8 userflags; /* BSD user file flags */
Sergei Antonovd7d673a2014-03-10 15:49:51 -0700245 u32 subfolders; /* Subfolder count (HFSX only) */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700246 struct list_head open_dir_list;
Al Viro323ee8f2016-05-12 20:02:09 -0400247 spinlock_t open_dir_lock;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700248 loff_t phys_size;
Christoph Hellwig7fcc99f2010-10-01 05:46:31 +0200249
Linus Torvalds1da177e2005-04-16 15:20:36 -0700250 struct inode vfs_inode;
251};
252
Christoph Hellwigb33b7922010-11-23 14:38:13 +0100253#define HFSPLUS_EXT_DIRTY 0x0001
254#define HFSPLUS_EXT_NEW 0x0002
Linus Torvalds1da177e2005-04-16 15:20:36 -0700255
Christoph Hellwigb33b7922010-11-23 14:38:13 +0100256#define HFSPLUS_I_RSRC 0 /* represents a resource fork */
Christoph Hellwige3494702010-11-23 14:38:15 +0100257#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 */
Vyacheslav Dubeyko324ef392013-02-27 17:03:04 -0800260#define HFSPLUS_I_ATTR_DIRTY 4 /* has changes in the attributes tree */
Christoph Hellwigb33b7922010-11-23 14:38:13 +0100261
262#define HFSPLUS_IS_RSRC(inode) \
263 test_bit(HFSPLUS_I_RSRC, &HFSPLUS_I(inode)->flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700264
Christoph Hellwige3494702010-11-23 14:38:15 +0100265static inline struct hfsplus_inode_info *HFSPLUS_I(struct inode *inode)
266{
Rasmus Villemoesdb6172c2015-03-19 12:28:04 +0100267 return container_of(inode, struct hfsplus_inode_info, vfs_inode);
Christoph Hellwige3494702010-11-23 14:38:15 +0100268}
269
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 */
276static 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}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700282
283struct 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
296struct hfsplus_readdir_data {
297 struct list_head list;
298 struct file *file;
299 struct hfsplus_cat_key key;
300};
301
Seth Forshee65965282011-07-18 08:06:23 -0700302/*
303 * Find minimum acceptible I/O size for an hfsplus sb.
304 */
305static 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
Linus Torvalds1da177e2005-04-16 15:20:36 -0700311#define hfs_btree_open hfsplus_btree_open
312#define hfs_btree_close hfsplus_btree_close
313#define hfs_btree_write hfsplus_btree_write
314#define hfs_bmap_alloc hfsplus_bmap_alloc
315#define hfs_bmap_free hfsplus_bmap_free
316#define hfs_bnode_read hfsplus_bnode_read
317#define hfs_bnode_read_u16 hfsplus_bnode_read_u16
318#define hfs_bnode_read_u8 hfsplus_bnode_read_u8
319#define hfs_bnode_read_key hfsplus_bnode_read_key
320#define hfs_bnode_write hfsplus_bnode_write
321#define hfs_bnode_write_u16 hfsplus_bnode_write_u16
322#define hfs_bnode_clear hfsplus_bnode_clear
323#define hfs_bnode_copy hfsplus_bnode_copy
324#define hfs_bnode_move hfsplus_bnode_move
325#define hfs_bnode_dump hfsplus_bnode_dump
326#define hfs_bnode_unlink hfsplus_bnode_unlink
327#define hfs_bnode_findhash hfsplus_bnode_findhash
328#define hfs_bnode_find hfsplus_bnode_find
329#define hfs_bnode_unhash hfsplus_bnode_unhash
330#define hfs_bnode_free hfsplus_bnode_free
331#define hfs_bnode_create hfsplus_bnode_create
332#define hfs_bnode_get hfsplus_bnode_get
333#define hfs_bnode_put hfsplus_bnode_put
334#define hfs_brec_lenoff hfsplus_brec_lenoff
335#define hfs_brec_keylen hfsplus_brec_keylen
336#define hfs_brec_insert hfsplus_brec_insert
337#define hfs_brec_remove hfsplus_brec_remove
338#define hfs_find_init hfsplus_find_init
339#define hfs_find_exit hfsplus_find_exit
Vyacheslav Dubeyko324ef392013-02-27 17:03:04 -0800340#define __hfs_brec_find __hfsplus_brec_find
Linus Torvalds1da177e2005-04-16 15:20:36 -0700341#define hfs_brec_find hfsplus_brec_find
342#define hfs_brec_read hfsplus_brec_read
343#define hfs_brec_goto hfsplus_brec_goto
344#define hfs_part_find hfsplus_part_find
345
346/*
347 * definitions for ext2 flag ioctls (linux really needs a generic
348 * interface for this).
349 */
350
351/* ext2 ioctls (EXT2_IOC_GETFLAGS and EXT2_IOC_SETFLAGS) to support
352 * chattr/lsattr */
David Howells36695672006-08-29 19:06:16 +0100353#define HFSPLUS_IOC_EXT2_GETFLAGS FS_IOC_GETFLAGS
354#define HFSPLUS_IOC_EXT2_SETFLAGS FS_IOC_SETFLAGS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700355
356
357/*
Matthew Garretta051f712012-02-06 15:14:40 -0500358 * hfs+-specific ioctl for making the filesystem bootable
359 */
360#define HFSPLUS_IOC_BLESS _IO('h', 0x80)
361
Vyacheslav Dubeyko324ef392013-02-27 17:03:04 -0800362typedef int (*search_strategy_t)(struct hfs_bnode *,
363 struct hfs_find_data *,
364 int *, int *, int *);
365
Matthew Garretta051f712012-02-06 15:14:40 -0500366/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700367 * Functions in any *.c used in other files
368 */
369
Vyacheslav Dubeyko324ef392013-02-27 17:03:04 -0800370/* attributes.c */
Fabian Frederickc11e6142014-04-03 14:50:35 -0700371int __init hfsplus_create_attr_tree_cache(void);
Vyacheslav Dubeyko324ef392013-02-27 17:03:04 -0800372void hfsplus_destroy_attr_tree_cache(void);
Sergei Antonovffbc0672014-06-06 14:36:30 -0700373int hfsplus_attr_bin_cmp_key(const hfsplus_btree_key *k1,
374 const hfsplus_btree_key *k2);
375int hfsplus_attr_build_key(struct super_block *sb, hfsplus_btree_key *key,
376 u32 cnid, const char *name);
Vyacheslav Dubeyko324ef392013-02-27 17:03:04 -0800377hfsplus_attr_entry *hfsplus_alloc_attr_entry(void);
Sergei Antonovffbc0672014-06-06 14:36:30 -0700378void hfsplus_destroy_attr_entry(hfsplus_attr_entry *entry);
379int hfsplus_find_attr(struct super_block *sb, u32 cnid, const char *name,
380 struct hfs_find_data *fd);
Vyacheslav Dubeyko324ef392013-02-27 17:03:04 -0800381int hfsplus_attr_exists(struct inode *inode, const char *name);
Sergei Antonovffbc0672014-06-06 14:36:30 -0700382int hfsplus_create_attr(struct inode *inode, const char *name,
383 const void *value, size_t size);
384int hfsplus_delete_attr(struct inode *inode, const char *name);
Vyacheslav Dubeyko324ef392013-02-27 17:03:04 -0800385int hfsplus_delete_all_attrs(struct inode *dir, u32 cnid);
386
Linus Torvalds1da177e2005-04-16 15:20:36 -0700387/* bitmap.c */
Sergei Antonovffbc0672014-06-06 14:36:30 -0700388int hfsplus_block_allocate(struct super_block *sb, u32 size, u32 offset,
389 u32 *max);
390int hfsplus_block_free(struct super_block *sb, u32 offset, u32 count);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700391
392/* btree.c */
Sergei Antonovffbc0672014-06-06 14:36:30 -0700393u32 hfsplus_calc_btree_clump_size(u32 block_size, u32 node_size, u64 sectors,
394 int file_id);
395struct hfs_btree *hfs_btree_open(struct super_block *sb, u32 id);
396void hfs_btree_close(struct hfs_btree *tree);
397int hfs_btree_write(struct hfs_btree *tree);
398struct hfs_bnode *hfs_bmap_alloc(struct hfs_btree *tree);
399void hfs_bmap_free(struct hfs_bnode *node);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700400
401/* bnode.c */
Sergei Antonovffbc0672014-06-06 14:36:30 -0700402void hfs_bnode_read(struct hfs_bnode *node, void *buf, int off, int len);
403u16 hfs_bnode_read_u16(struct hfs_bnode *node, int off);
404u8 hfs_bnode_read_u8(struct hfs_bnode *node, int off);
405void hfs_bnode_read_key(struct hfs_bnode *node, void *key, int off);
406void hfs_bnode_write(struct hfs_bnode *node, void *buf, int off, int len);
407void hfs_bnode_write_u16(struct hfs_bnode *node, int off, u16 data);
408void hfs_bnode_clear(struct hfs_bnode *node, int off, int len);
409void hfs_bnode_copy(struct hfs_bnode *dst_node, int dst,
410 struct hfs_bnode *src_node, int src, int len);
411void hfs_bnode_move(struct hfs_bnode *node, int dst, int src, int len);
412void hfs_bnode_dump(struct hfs_bnode *node);
413void hfs_bnode_unlink(struct hfs_bnode *node);
414struct hfs_bnode *hfs_bnode_findhash(struct hfs_btree *tree, u32 cnid);
415void hfs_bnode_unhash(struct hfs_bnode *node);
416struct hfs_bnode *hfs_bnode_find(struct hfs_btree *tree, u32 num);
417void hfs_bnode_free(struct hfs_bnode *node);
418struct hfs_bnode *hfs_bnode_create(struct hfs_btree *tree, u32 num);
419void hfs_bnode_get(struct hfs_bnode *node);
420void hfs_bnode_put(struct hfs_bnode *node);
421bool hfs_bnode_need_zeroout(struct hfs_btree *tree);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700422
423/* brec.c */
Sergei Antonovffbc0672014-06-06 14:36:30 -0700424u16 hfs_brec_lenoff(struct hfs_bnode *node, u16 rec, u16 *off);
425u16 hfs_brec_keylen(struct hfs_bnode *node, u16 rec);
426int hfs_brec_insert(struct hfs_find_data *fd, void *entry, int entry_len);
427int hfs_brec_remove(struct hfs_find_data *fd);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700428
429/* bfind.c */
Sergei Antonovffbc0672014-06-06 14:36:30 -0700430int hfs_find_init(struct hfs_btree *tree, struct hfs_find_data *fd);
431void hfs_find_exit(struct hfs_find_data *fd);
432int hfs_find_1st_rec_by_cnid(struct hfs_bnode *bnode, struct hfs_find_data *fd,
433 int *begin, int *end, int *cur_rec);
434int hfs_find_rec_by_key(struct hfs_bnode *bnode, struct hfs_find_data *fd,
435 int *begin, int *end, int *cur_rec);
436int __hfs_brec_find(struct hfs_bnode *bnode, struct hfs_find_data *fd,
437 search_strategy_t rec_found);
438int hfs_brec_find(struct hfs_find_data *fd, search_strategy_t do_key_compare);
439int hfs_brec_read(struct hfs_find_data *fd, void *rec, int rec_len);
440int hfs_brec_goto(struct hfs_find_data *fd, int cnt);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700441
442/* catalog.c */
Sergei Antonovffbc0672014-06-06 14:36:30 -0700443int hfsplus_cat_case_cmp_key(const hfsplus_btree_key *k1,
444 const hfsplus_btree_key *k2);
445int hfsplus_cat_bin_cmp_key(const hfsplus_btree_key *k1,
446 const hfsplus_btree_key *k2);
Sougata Santra89ac9b42014-12-18 16:17:12 -0800447int hfsplus_cat_build_key(struct super_block *sb, hfsplus_btree_key *key,
Al Virob5cce522016-07-20 16:17:26 -0400448 u32 parent, const struct qstr *str);
Sougata Santra89ac9b42014-12-18 16:17:12 -0800449void hfsplus_cat_build_key_with_cnid(struct super_block *sb,
450 hfsplus_btree_key *key, u32 parent);
Christoph Hellwig90e61692010-10-14 09:54:39 -0400451void hfsplus_cat_set_perms(struct inode *inode, struct hfsplus_perm *perms);
Sergei Antonovffbc0672014-06-06 14:36:30 -0700452int hfsplus_find_cat(struct super_block *sb, u32 cnid,
453 struct hfs_find_data *fd);
Al Virob5cce522016-07-20 16:17:26 -0400454int hfsplus_create_cat(u32 cnid, struct inode *dir, const struct qstr *str,
Sergei Antonovffbc0672014-06-06 14:36:30 -0700455 struct inode *inode);
Al Virob5cce522016-07-20 16:17:26 -0400456int hfsplus_delete_cat(u32 cnid, struct inode *dir, const struct qstr *str);
457int hfsplus_rename_cat(u32 cnid, struct inode *src_dir, const struct qstr *src_name,
458 struct inode *dst_dir, const struct qstr *dst_name);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700459
Adrian Bunk4b0a8da2008-04-29 00:58:52 -0700460/* dir.c */
461extern const struct inode_operations hfsplus_dir_inode_operations;
462extern const struct file_operations hfsplus_dir_operations;
463
Linus Torvalds1da177e2005-04-16 15:20:36 -0700464/* extents.c */
Sergei Antonovffbc0672014-06-06 14:36:30 -0700465int hfsplus_ext_cmp_key(const hfsplus_btree_key *k1,
466 const hfsplus_btree_key *k2);
467int hfsplus_ext_write_extent(struct inode *inode);
468int hfsplus_get_block(struct inode *inode, sector_t iblock,
469 struct buffer_head *bh_result, int create);
470int hfsplus_free_fork(struct super_block *sb, u32 cnid,
471 struct hfsplus_fork_raw *fork, int type);
472int hfsplus_file_extend(struct inode *inode, bool zeroout);
473void hfsplus_file_truncate(struct inode *inode);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700474
475/* inode.c */
Christoph Hellwigf5e54d62006-06-28 04:26:44 -0700476extern const struct address_space_operations hfsplus_aops;
477extern const struct address_space_operations hfsplus_btree_aops;
Al Viroe16404e2009-02-20 05:55:13 +0000478extern const struct dentry_operations hfsplus_dentry_operations;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700479
Sergei Antonovffbc0672014-06-06 14:36:30 -0700480struct inode *hfsplus_new_inode(struct super_block *sb, umode_t mode);
481void hfsplus_delete_inode(struct inode *inode);
482void hfsplus_inode_read_fork(struct inode *inode,
483 struct hfsplus_fork_raw *fork);
484void hfsplus_inode_write_fork(struct inode *inode,
485 struct hfsplus_fork_raw *fork);
486int hfsplus_cat_read_inode(struct inode *inode, struct hfs_find_data *fd);
487int hfsplus_cat_write_inode(struct inode *inode);
Josef Bacik02c24a82011-07-16 20:44:56 -0400488int hfsplus_file_fsync(struct file *file, loff_t start, loff_t end,
489 int datasync);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700490
491/* ioctl.c */
Arnd Bergmann7cc4bcc2010-04-27 16:24:20 +0200492long hfsplus_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700493
494/* options.c */
Sergei Antonovffbc0672014-06-06 14:36:30 -0700495void hfsplus_fill_defaults(struct hfsplus_sb_info *opts);
Christoph Hellwig6f80dfe2010-11-07 23:01:17 +0100496int hfsplus_parse_options_remount(char *input, int *force);
Sergei Antonovffbc0672014-06-06 14:36:30 -0700497int hfsplus_parse_options(char *input, struct hfsplus_sb_info *sbi);
498int hfsplus_show_options(struct seq_file *seq, struct dentry *root);
499
500/* part_tbl.c */
501int hfs_part_find(struct super_block *sb, sector_t *part_start,
502 sector_t *part_size);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700503
David Howells63525392008-02-07 00:15:40 -0800504/* super.c */
Sergei Antonovffbc0672014-06-06 14:36:30 -0700505struct inode *hfsplus_iget(struct super_block *sb, unsigned long ino);
Artem Bityutskiy9e6c5822012-07-12 17:26:31 +0300506void hfsplus_mark_mdb_dirty(struct super_block *sb);
David Howells63525392008-02-07 00:15:40 -0800507
Linus Torvalds1da177e2005-04-16 15:20:36 -0700508/* tables.c */
509extern u16 hfsplus_case_fold_table[];
510extern u16 hfsplus_decompose_table[];
511extern u16 hfsplus_compose_table[];
512
513/* unicode.c */
Sergei Antonovffbc0672014-06-06 14:36:30 -0700514int hfsplus_strcasecmp(const struct hfsplus_unistr *s1,
515 const struct hfsplus_unistr *s2);
516int hfsplus_strcmp(const struct hfsplus_unistr *s1,
517 const struct hfsplus_unistr *s2);
518int hfsplus_uni2asc(struct super_block *sb, const struct hfsplus_unistr *ustr,
519 char *astr, int *len_p);
520int hfsplus_asc2uni(struct super_block *sb, struct hfsplus_unistr *ustr,
521 int max_unistr_len, const char *astr, int len);
Linus Torvaldsda53be12013-05-21 15:22:44 -0700522int hfsplus_hash_dentry(const struct dentry *dentry, struct qstr *str);
Al Viro6fa67e72016-07-31 16:37:25 -0400523int hfsplus_compare_dentry(const struct dentry *dentry, unsigned int len,
Sergei Antonovffbc0672014-06-06 14:36:30 -0700524 const char *str, const struct qstr *name);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700525
526/* wrapper.c */
Sergei Antonovffbc0672014-06-06 14:36:30 -0700527int hfsplus_submit_bio(struct super_block *sb, sector_t sector, void *buf,
Mike Christie67ed2592016-06-05 14:31:58 -0500528 void **data, int op, int op_flags);
Sergei Antonovffbc0672014-06-06 14:36:30 -0700529int hfsplus_read_wrapper(struct super_block *sb);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700530
531/* time macros */
532#define __hfsp_mt2ut(t) (be32_to_cpu(t) - 2082844800U)
533#define __hfsp_ut2mt(t) (cpu_to_be32(t + 2082844800U))
534
535/* compatibility */
536#define hfsp_mt2ut(t) (struct timespec){ .tv_sec = __hfsp_mt2ut(t) }
537#define hfsp_ut2mt(t) __hfsp_ut2mt((t).tv_sec)
538#define hfsp_now2mt() __hfsp_ut2mt(get_seconds())
539
Linus Torvalds1da177e2005-04-16 15:20:36 -0700540#endif