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Commit | Line | Data |
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3839e657 TT |
1 | /* |
2 | * ext2fs.h --- ext2fs | |
efc6f628 | 3 | * |
19c78dc0 TT |
4 | * Copyright (C) 1993, 1994, 1995, 1996 Theodore Ts'o. |
5 | * | |
6 | * %Begin-Header% | |
7 | * This file may be redistributed under the terms of the GNU Public | |
8 | * License. | |
9 | * %End-Header% | |
3839e657 TT |
10 | */ |
11 | ||
9abd2ce9 TT |
12 | #ifndef _EXT2FS_EXT2FS_H |
13 | #define _EXT2FS_EXT2FS_H | |
14 | ||
54434927 TT |
15 | #ifdef __GNUC__ |
16 | #define EXT2FS_ATTR(x) __attribute__(x) | |
17 | #else | |
18 | #define EXT2FS_ATTR(x) | |
19 | #endif | |
20 | ||
fa7ef717 TT |
21 | #ifdef __cplusplus |
22 | extern "C" { | |
23 | #endif | |
24 | ||
19c78dc0 TT |
25 | /* |
26 | * Non-GNU C compilers won't necessarily understand inline | |
27 | */ | |
76f875da | 28 | #if (!defined(__GNUC__) && !defined(__WATCOMC__)) |
19c78dc0 TT |
29 | #define NO_INLINE_FUNCS |
30 | #endif | |
31 | ||
3839e657 TT |
32 | /* |
33 | * Where the master copy of the superblock is located, and how big | |
34 | * superblocks are supposed to be. We define SUPERBLOCK_SIZE because | |
35 | * the size of the superblock structure is not necessarily trustworthy | |
36 | * (some versions have the padding set up so that the superblock is | |
37 | * 1032 bytes long). | |
38 | */ | |
39 | #define SUPERBLOCK_OFFSET 1024 | |
40 | #define SUPERBLOCK_SIZE 1024 | |
41 | ||
f3db3566 TT |
42 | /* |
43 | * The last ext2fs revision level that this version of the library is | |
44 | * able to support. | |
45 | */ | |
e5b38a5f | 46 | #define EXT2_LIB_CURRENT_REV EXT2_DYNAMIC_REV |
f3db3566 | 47 | |
d40259fd | 48 | #ifdef HAVE_SYS_TYPES_H |
1e3472c5 | 49 | #include <sys/types.h> |
d40259fd TT |
50 | #endif |
51 | ||
3e699064 | 52 | #include <stdio.h> |
5be8dc21 | 53 | #include <stdlib.h> |
a82a5702 | 54 | #include <string.h> |
5953b9de TT |
55 | |
56 | #if EXT2_FLAT_INCLUDES | |
57 | #include "e2_types.h" | |
3e699064 | 58 | #include "ext2_fs.h" |
89dd6570 | 59 | #include "ext3_extents.h" |
5953b9de | 60 | #else |
797f5ef1 | 61 | #include <ext2fs/ext2_types.h> |
3e699064 | 62 | #include <ext2fs/ext2_fs.h> |
89dd6570 | 63 | #include <ext2fs/ext3_extents.h> |
e589f678 | 64 | #endif /* EXT2_FLAT_INCLUDES */ |
50e1e10f | 65 | |
31dbecd4 | 66 | typedef __u32 ext2_ino_t; |
50e1e10f | 67 | typedef __u32 blk_t; |
eac91b35 | 68 | typedef __u64 blk64_t; |
2eb374c9 | 69 | typedef __u32 dgrp_t; |
30fab293 | 70 | typedef __u32 ext2_off_t; |
03673dbb | 71 | typedef __s64 e2_blkcnt_t; |
52783e0c | 72 | typedef __u32 ext2_dirhash_t; |
3839e657 | 73 | |
b5abe6fa TT |
74 | #if EXT2_FLAT_INCLUDES |
75 | #include "com_err.h" | |
76 | #include "ext2_io.h" | |
77 | #include "ext2_err.h" | |
fefaef39 | 78 | #include "ext2_ext_attr.h" |
b5abe6fa | 79 | #else |
7c2d2569 TT |
80 | #include <et/com_err.h> |
81 | #include <ext2fs/ext2_io.h> | |
82 | #include <ext2fs/ext2_err.h> | |
fefaef39 | 83 | #include <ext2fs/ext2_ext_attr.h> |
b5abe6fa | 84 | #endif |
3839e657 | 85 | |
4c77fe50 TT |
86 | /* |
87 | * Portability help for Microsoft Visual C++ | |
88 | */ | |
89 | #ifdef _MSC_VER | |
90 | #define EXT2_QSORT_TYPE int __cdecl | |
91 | #else | |
92 | #define EXT2_QSORT_TYPE int | |
93 | #endif | |
94 | ||
f3db3566 TT |
95 | typedef struct struct_ext2_filsys *ext2_filsys; |
96 | ||
1e3472c5 TT |
97 | #define EXT2FS_MARK_ERROR 0 |
98 | #define EXT2FS_UNMARK_ERROR 1 | |
99 | #define EXT2FS_TEST_ERROR 2 | |
f3db3566 | 100 | |
1e3472c5 | 101 | typedef struct ext2fs_struct_generic_bitmap *ext2fs_generic_bitmap; |
1e3472c5 | 102 | typedef struct ext2fs_struct_generic_bitmap *ext2fs_inode_bitmap; |
1e3472c5 | 103 | typedef struct ext2fs_struct_generic_bitmap *ext2fs_block_bitmap; |
f3db3566 | 104 | |
7f88b043 | 105 | #define EXT2_FIRST_INODE(s) EXT2_FIRST_INO(s) |
067911ae | 106 | |
7f88b043 | 107 | |
19c78dc0 | 108 | /* |
067911ae | 109 | * Badblocks list definitions |
19c78dc0 TT |
110 | */ |
111 | ||
b7a00563 TT |
112 | typedef struct ext2_struct_u32_list *ext2_badblocks_list; |
113 | typedef struct ext2_struct_u32_iterate *ext2_badblocks_iterate; | |
114 | ||
115 | typedef struct ext2_struct_u32_list *ext2_u32_list; | |
116 | typedef struct ext2_struct_u32_iterate *ext2_u32_iterate; | |
19c78dc0 TT |
117 | |
118 | /* old */ | |
b7a00563 TT |
119 | typedef struct ext2_struct_u32_list *badblocks_list; |
120 | typedef struct ext2_struct_u32_iterate *badblocks_iterate; | |
19c78dc0 TT |
121 | |
122 | #define BADBLOCKS_FLAG_DIRTY 1 | |
123 | ||
124 | /* | |
125 | * ext2_dblist structure and abstractions (see dblist.c) | |
126 | */ | |
127 | struct ext2_db_entry { | |
31dbecd4 | 128 | ext2_ino_t ino; |
19c78dc0 TT |
129 | blk_t blk; |
130 | int blockcnt; | |
131 | }; | |
132 | ||
133 | typedef struct ext2_struct_dblist *ext2_dblist; | |
134 | ||
135 | #define DBLIST_ABORT 1 | |
136 | ||
30fab293 TT |
137 | /* |
138 | * ext2_fileio definitions | |
139 | */ | |
140 | ||
141 | #define EXT2_FILE_WRITE 0x0001 | |
142 | #define EXT2_FILE_CREATE 0x0002 | |
143 | ||
144 | #define EXT2_FILE_MASK 0x00FF | |
145 | ||
146 | #define EXT2_FILE_BUF_DIRTY 0x4000 | |
147 | #define EXT2_FILE_BUF_VALID 0x2000 | |
148 | ||
149 | typedef struct ext2_file *ext2_file_t; | |
150 | ||
151 | #define EXT2_SEEK_SET 0 | |
152 | #define EXT2_SEEK_CUR 1 | |
153 | #define EXT2_SEEK_END 2 | |
154 | ||
3839e657 | 155 | /* |
a112847b | 156 | * Flags for the ext2_filsys structure and for ext2fs_open() |
3839e657 | 157 | */ |
19c78dc0 TT |
158 | #define EXT2_FLAG_RW 0x01 |
159 | #define EXT2_FLAG_CHANGED 0x02 | |
160 | #define EXT2_FLAG_DIRTY 0x04 | |
161 | #define EXT2_FLAG_VALID 0x08 | |
162 | #define EXT2_FLAG_IB_DIRTY 0x10 | |
163 | #define EXT2_FLAG_BB_DIRTY 0x20 | |
5c576477 TT |
164 | #define EXT2_FLAG_SWAP_BYTES 0x40 |
165 | #define EXT2_FLAG_SWAP_BYTES_READ 0x80 | |
166 | #define EXT2_FLAG_SWAP_BYTES_WRITE 0x100 | |
167 | #define EXT2_FLAG_MASTER_SB_ONLY 0x200 | |
19c78dc0 | 168 | #define EXT2_FLAG_FORCE 0x400 |
43ec8734 | 169 | #define EXT2_FLAG_SUPER_ONLY 0x800 |
a112847b | 170 | #define EXT2_FLAG_JOURNAL_DEV_OK 0x1000 |
a78926ef | 171 | #define EXT2_FLAG_IMAGE_FILE 0x2000 |
39c47ce6 | 172 | #define EXT2_FLAG_EXCLUSIVE 0x4000 |
cf8272e1 | 173 | #define EXT2_FLAG_SOFTSUPP_FEATURES 0x8000 |
ab52e12a | 174 | #define EXT2_FLAG_NOFREE_ON_ERROR 0x10000 |
3839e657 | 175 | |
7f88b043 TT |
176 | /* |
177 | * Special flag in the ext2 inode i_flag field that means that this is | |
178 | * a new inode. (So that ext2_write_inode() can clear extra fields.) | |
179 | */ | |
180 | #define EXT2_NEW_INODE_FL 0x80000000 | |
181 | ||
4e246704 TT |
182 | /* |
183 | * Flags for mkjournal | |
184 | * | |
185 | * EXT2_MKJOURNAL_V1_SUPER Make a (deprecated) V1 journal superblock | |
186 | */ | |
187 | #define EXT2_MKJOURNAL_V1_SUPER 0x0000001 | |
188 | ||
3839e657 | 189 | struct struct_ext2_filsys { |
4cbe8af4 | 190 | errcode_t magic; |
3839e657 TT |
191 | io_channel io; |
192 | int flags; | |
193 | char * device_name; | |
194 | struct ext2_super_block * super; | |
54434927 | 195 | unsigned int blocksize; |
3839e657 | 196 | int fragsize; |
2eb374c9 | 197 | dgrp_t group_desc_count; |
3839e657 TT |
198 | unsigned long desc_blocks; |
199 | struct ext2_group_desc * group_desc; | |
200 | int inode_blocks_per_group; | |
f3db3566 TT |
201 | ext2fs_inode_bitmap inode_map; |
202 | ext2fs_block_bitmap block_map; | |
31dbecd4 TT |
203 | errcode_t (*get_blocks)(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks); |
204 | errcode_t (*check_directory)(ext2_filsys fs, ext2_ino_t ino); | |
3839e657 | 205 | errcode_t (*write_bitmaps)(ext2_filsys fs); |
31dbecd4 | 206 | errcode_t (*read_inode)(ext2_filsys fs, ext2_ino_t ino, |
1e3472c5 | 207 | struct ext2_inode *inode); |
31dbecd4 | 208 | errcode_t (*write_inode)(ext2_filsys fs, ext2_ino_t ino, |
1e3472c5 | 209 | struct ext2_inode *inode); |
b7a00563 | 210 | ext2_badblocks_list badblocks; |
19c78dc0 | 211 | ext2_dblist dblist; |
a29f4d30 | 212 | __u32 stride; /* for mke2fs */ |
c180ac86 | 213 | struct ext2_super_block * orig_super; |
a78926ef | 214 | struct ext2_image_hdr * image_header; |
6a525069 | 215 | __u32 umask; |
9b9a780f | 216 | time_t now; |
19c78dc0 TT |
217 | /* |
218 | * Reserved for future expansion | |
219 | */ | |
32138187 | 220 | __u32 reserved[7]; |
3839e657 TT |
221 | |
222 | /* | |
a29f4d30 | 223 | * Reserved for the use of the calling application. |
3839e657 | 224 | */ |
b5abe6fa | 225 | void * priv_data; |
a29f4d30 TT |
226 | |
227 | /* | |
228 | * Inode cache | |
229 | */ | |
230 | struct ext2_inode_cache *icache; | |
1ad54a94 | 231 | io_channel image_io; |
f5c562e2 TT |
232 | |
233 | /* | |
234 | * More callback functions | |
235 | */ | |
236 | errcode_t (*get_alloc_block)(ext2_filsys fs, blk64_t goal, | |
237 | blk64_t *ret); | |
238 | void (*block_alloc_stats)(ext2_filsys fs, blk64_t blk, int inuse); | |
3839e657 TT |
239 | }; |
240 | ||
5953b9de TT |
241 | #if EXT2_FLAT_INCLUDES |
242 | #include "e2_bitops.h" | |
243 | #else | |
7c2d2569 | 244 | #include <ext2fs/bitops.h> |
5953b9de | 245 | #endif |
d40259fd | 246 | |
3839e657 TT |
247 | /* |
248 | * Return flags for the block iterator functions | |
249 | */ | |
250 | #define BLOCK_CHANGED 1 | |
251 | #define BLOCK_ABORT 2 | |
252 | #define BLOCK_ERROR 4 | |
253 | ||
254 | /* | |
255 | * Block interate flags | |
50e1e10f TT |
256 | * |
257 | * BLOCK_FLAG_APPEND, or BLOCK_FLAG_HOLE, indicates that the interator | |
258 | * function should be called on blocks where the block number is zero. | |
259 | * This is used by ext2fs_expand_dir() to be able to add a new block | |
260 | * to an inode. It can also be used for programs that want to be able | |
261 | * to deal with files that contain "holes". | |
efc6f628 | 262 | * |
7447921d TT |
263 | * BLOCK_FLAG_DEPTH_TRAVERSE indicates that the iterator function for |
264 | * the indirect, doubly indirect, etc. blocks should be called after | |
265 | * all of the blocks containined in the indirect blocks are processed. | |
50e1e10f TT |
266 | * This is useful if you are going to be deallocating blocks from an |
267 | * inode. | |
1e3472c5 TT |
268 | * |
269 | * BLOCK_FLAG_DATA_ONLY indicates that the iterator function should be | |
270 | * called for data blocks only. | |
674a4ee1 | 271 | * |
efc6f628 | 272 | * BLOCK_FLAG_READ_ONLY is a promise by the caller that it will not |
357d1863 TT |
273 | * modify returned block number. |
274 | * | |
674a4ee1 | 275 | * BLOCK_FLAG_NO_LARGE is for internal use only. It informs |
36a43d67 | 276 | * ext2fs_block_iterate2 that large files won't be accepted. |
3839e657 TT |
277 | */ |
278 | #define BLOCK_FLAG_APPEND 1 | |
50e1e10f | 279 | #define BLOCK_FLAG_HOLE 1 |
3839e657 | 280 | #define BLOCK_FLAG_DEPTH_TRAVERSE 2 |
1e3472c5 | 281 | #define BLOCK_FLAG_DATA_ONLY 4 |
357d1863 | 282 | #define BLOCK_FLAG_READ_ONLY 8 |
1e3472c5 | 283 | |
674a4ee1 TT |
284 | #define BLOCK_FLAG_NO_LARGE 0x1000 |
285 | ||
1e3472c5 TT |
286 | /* |
287 | * Magic "block count" return values for the block iterator function. | |
288 | */ | |
289 | #define BLOCK_COUNT_IND (-1) | |
290 | #define BLOCK_COUNT_DIND (-2) | |
291 | #define BLOCK_COUNT_TIND (-3) | |
292 | #define BLOCK_COUNT_TRANSLATOR (-4) | |
3839e657 | 293 | |
4a31c48b | 294 | #if 0 |
1e1da29f TT |
295 | /* |
296 | * Flags for ext2fs_move_blocks | |
297 | */ | |
efc6f628 | 298 | #define EXT2_BMOVE_GET_DBLIST 0x0001 |
36f21439 | 299 | #define EXT2_BMOVE_DEBUG 0x0002 |
4a31c48b | 300 | #endif |
1e1da29f | 301 | |
3eb07f64 TT |
302 | /* |
303 | * Generic (non-filesystem layout specific) extents structure | |
304 | */ | |
305 | ||
306 | #define EXT2_EXTENT_FLAGS_LEAF 0x0001 | |
307 | #define EXT2_EXTENT_FLAGS_UNINIT 0x0002 | |
308 | #define EXT2_EXTENT_FLAGS_SECOND_VISIT 0x0004 | |
309 | ||
310 | struct ext2fs_extent { | |
311 | blk64_t e_pblk; /* first physical block */ | |
312 | blk64_t e_lblk; /* first logical block extent covers */ | |
313 | __u32 e_len; /* number of blocks covered by extent */ | |
314 | __u32 e_flags; /* extent flags */ | |
315 | }; | |
316 | ||
317 | typedef struct ext2_extent_handle *ext2_extent_handle_t; | |
318 | typedef struct ext2_extent_path *ext2_extent_path_t; | |
319 | ||
320 | /* | |
321 | * Flags used by ext2fs_extent_get() | |
322 | */ | |
323 | #define EXT2_EXTENT_CURRENT 0x0000 | |
324 | #define EXT2_EXTENT_MOVE_MASK 0x000F | |
325 | #define EXT2_EXTENT_ROOT 0x0001 | |
326 | #define EXT2_EXTENT_LAST_LEAF 0x0002 | |
327 | #define EXT2_EXTENT_FIRST_SIB 0x0003 | |
328 | #define EXT2_EXTENT_LAST_SIB 0x0004 | |
329 | #define EXT2_EXTENT_NEXT_SIB 0x0005 | |
330 | #define EXT2_EXTENT_PREV_SIB 0x0006 | |
331 | #define EXT2_EXTENT_NEXT_LEAF 0x0007 | |
332 | #define EXT2_EXTENT_PREV_LEAF 0x0008 | |
333 | #define EXT2_EXTENT_NEXT 0x0009 | |
334 | #define EXT2_EXTENT_PREV 0x000A | |
335 | #define EXT2_EXTENT_UP 0x000B | |
336 | #define EXT2_EXTENT_DOWN 0x000C | |
337 | #define EXT2_EXTENT_DOWN_AND_LAST 0x000D | |
338 | ||
339 | /* | |
340 | * Flags used by ext2fs_extent_insert() | |
341 | */ | |
01229db5 ES |
342 | #define EXT2_EXTENT_INSERT_AFTER 0x0001 /* insert after handle loc'n */ |
343 | #define EXT2_EXTENT_INSERT_NOSPLIT 0x0002 /* insert may not cause split */ | |
3eb07f64 | 344 | |
c802ad9e ES |
345 | /* |
346 | * Flags used by ext2fs_extent_delete() | |
347 | */ | |
348 | #define EXT2_EXTENT_DELETE_KEEP_EMPTY 0x001 /* keep node if last extnt gone */ | |
349 | ||
f4e9963c ES |
350 | /* |
351 | * Flags used by ext2fs_extent_set_bmap() | |
352 | */ | |
353 | #define EXT2_EXTENT_SET_BMAP_UNINIT 0x0001 | |
354 | ||
3eb07f64 TT |
355 | /* |
356 | * Data structure returned by ext2fs_extent_get_info() | |
357 | */ | |
358 | struct ext2_extent_info { | |
359 | int curr_entry; | |
360 | int curr_level; | |
361 | int num_entries; | |
362 | int max_entries; | |
363 | int max_depth; | |
364 | int bytes_avail; | |
365 | blk64_t max_lblk; | |
366 | blk64_t max_pblk; | |
367 | __u32 max_len; | |
368 | __u32 max_uninit_len; | |
369 | }; | |
370 | ||
f9190c8a TT |
371 | /* |
372 | * Flags for directory block reading and writing functions | |
373 | */ | |
374 | #define EXT2_DIRBLOCK_V2_STRUCT 0x0001 | |
375 | ||
3839e657 TT |
376 | /* |
377 | * Return flags for the directory iterator functions | |
378 | */ | |
379 | #define DIRENT_CHANGED 1 | |
380 | #define DIRENT_ABORT 2 | |
381 | #define DIRENT_ERROR 3 | |
382 | ||
383 | /* | |
384 | * Directory iterator flags | |
385 | */ | |
386 | ||
387 | #define DIRENT_FLAG_INCLUDE_EMPTY 1 | |
8bd0c959 | 388 | #define DIRENT_FLAG_INCLUDE_REMOVED 2 |
19c78dc0 TT |
389 | |
390 | #define DIRENT_DOT_FILE 1 | |
391 | #define DIRENT_DOT_DOT_FILE 2 | |
392 | #define DIRENT_OTHER_FILE 3 | |
8bd0c959 | 393 | #define DIRENT_DELETED_FILE 4 |
19c78dc0 | 394 | |
3839e657 TT |
395 | /* |
396 | * Inode scan definitions | |
397 | */ | |
f3db3566 TT |
398 | typedef struct ext2_struct_inode_scan *ext2_inode_scan; |
399 | ||
19c78dc0 TT |
400 | /* |
401 | * ext2fs_scan flags | |
402 | */ | |
403 | #define EXT2_SF_CHK_BADBLOCKS 0x0001 | |
404 | #define EXT2_SF_BAD_INODE_BLK 0x0002 | |
405 | #define EXT2_SF_BAD_EXTRA_BYTES 0x0004 | |
406 | #define EXT2_SF_SKIP_MISSING_ITABLE 0x0008 | |
f5fa2007 | 407 | #define EXT2_SF_DO_LAZY 0x0010 |
3839e657 | 408 | |
50e1e10f TT |
409 | /* |
410 | * ext2fs_check_if_mounted flags | |
411 | */ | |
412 | #define EXT2_MF_MOUNTED 1 | |
413 | #define EXT2_MF_ISROOT 2 | |
19c78dc0 | 414 | #define EXT2_MF_READONLY 4 |
07cefe7a | 415 | #define EXT2_MF_SWAP 8 |
2fa8f37f | 416 | #define EXT2_MF_BUSY 16 |
50e1e10f TT |
417 | |
418 | /* | |
419 | * Ext2/linux mode flags. We define them here so that we don't need | |
420 | * to depend on the OS's sys/stat.h, since we may be compiling on a | |
421 | * non-Linux system. | |
422 | */ | |
423 | #define LINUX_S_IFMT 00170000 | |
424 | #define LINUX_S_IFSOCK 0140000 | |
425 | #define LINUX_S_IFLNK 0120000 | |
426 | #define LINUX_S_IFREG 0100000 | |
427 | #define LINUX_S_IFBLK 0060000 | |
428 | #define LINUX_S_IFDIR 0040000 | |
429 | #define LINUX_S_IFCHR 0020000 | |
430 | #define LINUX_S_IFIFO 0010000 | |
431 | #define LINUX_S_ISUID 0004000 | |
432 | #define LINUX_S_ISGID 0002000 | |
433 | #define LINUX_S_ISVTX 0001000 | |
434 | ||
1e3472c5 TT |
435 | #define LINUX_S_IRWXU 00700 |
436 | #define LINUX_S_IRUSR 00400 | |
437 | #define LINUX_S_IWUSR 00200 | |
438 | #define LINUX_S_IXUSR 00100 | |
439 | ||
440 | #define LINUX_S_IRWXG 00070 | |
441 | #define LINUX_S_IRGRP 00040 | |
442 | #define LINUX_S_IWGRP 00020 | |
443 | #define LINUX_S_IXGRP 00010 | |
444 | ||
445 | #define LINUX_S_IRWXO 00007 | |
446 | #define LINUX_S_IROTH 00004 | |
447 | #define LINUX_S_IWOTH 00002 | |
448 | #define LINUX_S_IXOTH 00001 | |
449 | ||
50e1e10f TT |
450 | #define LINUX_S_ISLNK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFLNK) |
451 | #define LINUX_S_ISREG(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFREG) | |
452 | #define LINUX_S_ISDIR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFDIR) | |
453 | #define LINUX_S_ISCHR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFCHR) | |
454 | #define LINUX_S_ISBLK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFBLK) | |
455 | #define LINUX_S_ISFIFO(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFIFO) | |
456 | #define LINUX_S_ISSOCK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFSOCK) | |
457 | ||
819157db TT |
458 | /* |
459 | * ext2 size of an inode | |
460 | */ | |
461 | #define EXT2_I_SIZE(i) ((i)->i_size | ((__u64) (i)->i_size_high << 32)) | |
462 | ||
19c78dc0 TT |
463 | /* |
464 | * ext2_icount_t abstraction | |
465 | */ | |
466 | #define EXT2_ICOUNT_OPT_INCREMENT 0x01 | |
467 | ||
468 | typedef struct ext2_icount *ext2_icount_t; | |
469 | ||
30fab293 TT |
470 | /* |
471 | * Flags for ext2fs_bmap | |
472 | */ | |
1d667534 TT |
473 | #define BMAP_ALLOC 0x0001 |
474 | #define BMAP_SET 0x0002 | |
30fab293 | 475 | |
cc9bf5d2 TT |
476 | /* |
477 | * Returned flags from ext2fs_bmap | |
478 | */ | |
479 | #define BMAP_RET_UNINIT 0x0001 | |
480 | ||
72ed1264 TT |
481 | /* |
482 | * Flags for imager.c functions | |
483 | */ | |
484 | #define IMAGER_FLAG_INODEMAP 1 | |
485 | #define IMAGER_FLAG_SPARSEWRITE 2 | |
486 | ||
f3db3566 TT |
487 | /* |
488 | * For checking structure magic numbers... | |
489 | */ | |
3839e657 | 490 | |
f3db3566 TT |
491 | #define EXT2_CHECK_MAGIC(struct, code) \ |
492 | if ((struct)->magic != (code)) return (code) | |
1e3472c5 TT |
493 | |
494 | ||
495 | /* | |
e5b38a5f | 496 | * For ext2 compression support |
1e3472c5 | 497 | */ |
5d38ef1d | 498 | #define EXT2FS_COMPRESSED_BLKADDR ((blk_t) -1) |
5a63dd28 TT |
499 | #define HOLE_BLKADDR(_b) ((_b) == 0 || (_b) == EXT2FS_COMPRESSED_BLKADDR) |
500 | ||
521e3685 | 501 | /* |
426d734f | 502 | * Features supported by this version of the library |
521e3685 | 503 | */ |
3a5f8eaa TT |
504 | #define EXT2_LIB_FEATURE_COMPAT_SUPP (EXT2_FEATURE_COMPAT_DIR_PREALLOC|\ |
505 | EXT2_FEATURE_COMPAT_IMAGIC_INODES|\ | |
342d847d | 506 | EXT3_FEATURE_COMPAT_HAS_JOURNAL|\ |
d323f8fb | 507 | EXT2_FEATURE_COMPAT_RESIZE_INODE|\ |
52783e0c | 508 | EXT2_FEATURE_COMPAT_DIR_INDEX|\ |
342d847d | 509 | EXT2_FEATURE_COMPAT_EXT_ATTR) |
2fe1efe2 | 510 | |
5a63dd28 TT |
511 | /* This #ifdef is temporary until compression is fully supported */ |
512 | #ifdef ENABLE_COMPRESSION | |
e589f678 TT |
513 | #ifndef I_KNOW_THAT_COMPRESSION_IS_EXPERIMENTAL |
514 | /* If the below warning bugs you, then have | |
515 | `CPPFLAGS=-DI_KNOW_THAT_COMPRESSION_IS_EXPERIMENTAL' in your | |
516 | environment at configure time. */ | |
cdaf1fa7 | 517 | #warning "Compression support is experimental" |
e589f678 | 518 | #endif |
5a63dd28 | 519 | #define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\ |
ab146766 | 520 | EXT2_FEATURE_INCOMPAT_COMPRESSION|\ |
a112847b | 521 | EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\ |
c046ac7f | 522 | EXT2_FEATURE_INCOMPAT_META_BG|\ |
c2d4300b | 523 | EXT3_FEATURE_INCOMPAT_RECOVER|\ |
15d482ba | 524 | EXT3_FEATURE_INCOMPAT_EXTENTS|\ |
c2d4300b | 525 | EXT4_FEATURE_INCOMPAT_FLEX_BG) |
5a63dd28 | 526 | #else |
ab146766 | 527 | #define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\ |
a112847b | 528 | EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\ |
c046ac7f | 529 | EXT2_FEATURE_INCOMPAT_META_BG|\ |
c2d4300b | 530 | EXT3_FEATURE_INCOMPAT_RECOVER|\ |
15d482ba | 531 | EXT3_FEATURE_INCOMPAT_EXTENTS|\ |
c2d4300b | 532 | EXT4_FEATURE_INCOMPAT_FLEX_BG) |
5a63dd28 | 533 | #endif |
674a4ee1 | 534 | #define EXT2_LIB_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|\ |
1ca1059f | 535 | EXT4_FEATURE_RO_COMPAT_HUGE_FILE|\ |
a7c9cb7d | 536 | EXT2_FEATURE_RO_COMPAT_LARGE_FILE|\ |
d4f34d41 | 537 | EXT4_FEATURE_RO_COMPAT_DIR_NLINK|\ |
2be8fe43 | 538 | EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|\ |
d4f34d41 | 539 | EXT4_FEATURE_RO_COMPAT_GDT_CSUM) |
cf8272e1 TT |
540 | |
541 | /* | |
542 | * These features are only allowed if EXT2_FLAG_SOFTSUPP_FEATURES is passed | |
543 | * to ext2fs_openfs() | |
544 | */ | |
1ca1059f | 545 | #define EXT2_LIB_SOFTSUPP_INCOMPAT (0) |
2be8fe43 | 546 | #define EXT2_LIB_SOFTSUPP_RO_COMPAT (0) |
cf8272e1 | 547 | |
3839e657 TT |
548 | /* |
549 | * function prototypes | |
550 | */ | |
551 | ||
552 | /* alloc.c */ | |
31dbecd4 TT |
553 | extern errcode_t ext2fs_new_inode(ext2_filsys fs, ext2_ino_t dir, int mode, |
554 | ext2fs_inode_bitmap map, ext2_ino_t *ret); | |
3839e657 | 555 | extern errcode_t ext2fs_new_block(ext2_filsys fs, blk_t goal, |
f3db3566 | 556 | ext2fs_block_bitmap map, blk_t *ret); |
3839e657 | 557 | extern errcode_t ext2fs_get_free_blocks(ext2_filsys fs, blk_t start, |
f3db3566 TT |
558 | blk_t finish, int num, |
559 | ext2fs_block_bitmap map, | |
3839e657 | 560 | blk_t *ret); |
30fab293 TT |
561 | extern errcode_t ext2fs_alloc_block(ext2_filsys fs, blk_t goal, |
562 | char *block_buf, blk_t *ret); | |
efc6f628 | 563 | extern void ext2fs_set_alloc_block_callback(ext2_filsys fs, |
f5c562e2 TT |
564 | errcode_t (*func)(ext2_filsys fs, |
565 | blk64_t goal, | |
566 | blk64_t *ret), | |
567 | errcode_t (**old)(ext2_filsys fs, | |
568 | blk64_t goal, | |
569 | blk64_t *ret)); | |
3839e657 | 570 | |
ef344e13 | 571 | /* alloc_sb.c */ |
efc6f628 | 572 | extern int ext2fs_reserve_super_and_bgd(ext2_filsys fs, |
ef344e13 TT |
573 | dgrp_t group, |
574 | ext2fs_block_bitmap bmap); | |
efc6f628 | 575 | extern void ext2fs_set_block_alloc_stats_callback(ext2_filsys fs, |
f5c562e2 TT |
576 | void (*func)(ext2_filsys fs, |
577 | blk64_t blk, | |
578 | int inuse), | |
579 | void (**old)(ext2_filsys fs, | |
580 | blk64_t blk, | |
581 | int inuse)); | |
ef344e13 | 582 | |
8bd0c959 TT |
583 | /* alloc_stats.c */ |
584 | void ext2fs_inode_alloc_stats(ext2_filsys fs, ext2_ino_t ino, int inuse); | |
7f961d42 TT |
585 | void ext2fs_inode_alloc_stats2(ext2_filsys fs, ext2_ino_t ino, |
586 | int inuse, int isdir); | |
8bd0c959 TT |
587 | void ext2fs_block_alloc_stats(ext2_filsys fs, blk_t blk, int inuse); |
588 | ||
1e1da29f TT |
589 | /* alloc_tables.c */ |
590 | extern errcode_t ext2fs_allocate_tables(ext2_filsys fs); | |
2eb374c9 | 591 | extern errcode_t ext2fs_allocate_group_table(ext2_filsys fs, dgrp_t group, |
1e1da29f | 592 | ext2fs_block_bitmap bmap); |
19c78dc0 | 593 | |
3839e657 | 594 | /* badblocks.c */ |
b7a00563 TT |
595 | extern errcode_t ext2fs_u32_list_create(ext2_u32_list *ret, int size); |
596 | extern errcode_t ext2fs_u32_list_add(ext2_u32_list bb, __u32 blk); | |
54434927 | 597 | extern int ext2fs_u32_list_find(ext2_u32_list bb, __u32 blk); |
b7a00563 TT |
598 | extern int ext2fs_u32_list_test(ext2_u32_list bb, blk_t blk); |
599 | extern errcode_t ext2fs_u32_list_iterate_begin(ext2_u32_list bb, | |
600 | ext2_u32_iterate *ret); | |
601 | extern int ext2fs_u32_list_iterate(ext2_u32_iterate iter, blk_t *blk); | |
602 | extern void ext2fs_u32_list_iterate_end(ext2_u32_iterate iter); | |
603 | extern errcode_t ext2fs_u32_copy(ext2_u32_list src, ext2_u32_list *dest); | |
604 | extern int ext2fs_u32_list_equal(ext2_u32_list bb1, ext2_u32_list bb2); | |
605 | ||
19c78dc0 TT |
606 | extern errcode_t ext2fs_badblocks_list_create(ext2_badblocks_list *ret, |
607 | int size); | |
19c78dc0 TT |
608 | extern errcode_t ext2fs_badblocks_list_add(ext2_badblocks_list bb, |
609 | blk_t blk); | |
610 | extern int ext2fs_badblocks_list_test(ext2_badblocks_list bb, | |
611 | blk_t blk); | |
7d7bdd57 TT |
612 | extern int ext2fs_u32_list_del(ext2_u32_list bb, __u32 blk); |
613 | extern void ext2fs_badblocks_list_del(ext2_u32_list bb, __u32 blk); | |
19c78dc0 TT |
614 | extern errcode_t |
615 | ext2fs_badblocks_list_iterate_begin(ext2_badblocks_list bb, | |
616 | ext2_badblocks_iterate *ret); | |
617 | extern int ext2fs_badblocks_list_iterate(ext2_badblocks_iterate iter, | |
618 | blk_t *blk); | |
619 | extern void ext2fs_badblocks_list_iterate_end(ext2_badblocks_iterate iter); | |
a29f4d30 TT |
620 | extern errcode_t ext2fs_badblocks_copy(ext2_badblocks_list src, |
621 | ext2_badblocks_list *dest); | |
57dca854 TT |
622 | extern int ext2fs_badblocks_equal(ext2_badblocks_list bb1, |
623 | ext2_badblocks_list bb2); | |
220c0040 | 624 | extern int ext2fs_u32_list_count(ext2_u32_list bb); |
19c78dc0 TT |
625 | |
626 | /* bb_compat */ | |
3839e657 | 627 | extern errcode_t badblocks_list_create(badblocks_list *ret, int size); |
3839e657 TT |
628 | extern errcode_t badblocks_list_add(badblocks_list bb, blk_t blk); |
629 | extern int badblocks_list_test(badblocks_list bb, blk_t blk); | |
630 | extern errcode_t badblocks_list_iterate_begin(badblocks_list bb, | |
631 | badblocks_iterate *ret); | |
632 | extern int badblocks_list_iterate(badblocks_iterate iter, blk_t *blk); | |
633 | extern void badblocks_list_iterate_end(badblocks_iterate iter); | |
a29f4d30 | 634 | extern void badblocks_list_free(badblocks_list bb); |
3839e657 TT |
635 | |
636 | /* bb_inode.c */ | |
637 | extern errcode_t ext2fs_update_bb_inode(ext2_filsys fs, | |
19c78dc0 | 638 | ext2_badblocks_list bb_list); |
3839e657 TT |
639 | |
640 | /* bitmaps.c */ | |
a0553c9d TT |
641 | extern void ext2fs_free_block_bitmap(ext2fs_block_bitmap bitmap); |
642 | extern void ext2fs_free_inode_bitmap(ext2fs_inode_bitmap bitmap); | |
f1f115a7 TT |
643 | extern errcode_t ext2fs_copy_bitmap(ext2fs_generic_bitmap src, |
644 | ext2fs_generic_bitmap *dest); | |
3839e657 TT |
645 | extern errcode_t ext2fs_write_inode_bitmap(ext2_filsys fs); |
646 | extern errcode_t ext2fs_write_block_bitmap (ext2_filsys fs); | |
647 | extern errcode_t ext2fs_read_inode_bitmap (ext2_filsys fs); | |
648 | extern errcode_t ext2fs_read_block_bitmap(ext2_filsys fs); | |
50e1e10f TT |
649 | extern errcode_t ext2fs_allocate_block_bitmap(ext2_filsys fs, |
650 | const char *descr, | |
651 | ext2fs_block_bitmap *ret); | |
652 | extern errcode_t ext2fs_allocate_inode_bitmap(ext2_filsys fs, | |
653 | const char *descr, | |
654 | ext2fs_inode_bitmap *ret); | |
655 | extern errcode_t ext2fs_fudge_inode_bitmap_end(ext2fs_inode_bitmap bitmap, | |
31dbecd4 | 656 | ext2_ino_t end, ext2_ino_t *oend); |
50e1e10f TT |
657 | extern errcode_t ext2fs_fudge_block_bitmap_end(ext2fs_block_bitmap bitmap, |
658 | blk_t end, blk_t *oend); | |
659 | extern void ext2fs_clear_inode_bitmap(ext2fs_inode_bitmap bitmap); | |
660 | extern void ext2fs_clear_block_bitmap(ext2fs_block_bitmap bitmap); | |
3839e657 TT |
661 | extern errcode_t ext2fs_read_bitmaps(ext2_filsys fs); |
662 | extern errcode_t ext2fs_write_bitmaps(ext2_filsys fs); | |
50448d3d TT |
663 | extern errcode_t ext2fs_resize_inode_bitmap(__u32 new_end, __u32 new_real_end, |
664 | ext2fs_inode_bitmap bmap); | |
665 | extern errcode_t ext2fs_resize_block_bitmap(__u32 new_end, __u32 new_real_end, | |
666 | ext2fs_block_bitmap bmap); | |
667 | extern errcode_t ext2fs_compare_block_bitmap(ext2fs_block_bitmap bm1, | |
668 | ext2fs_block_bitmap bm2); | |
669 | extern errcode_t ext2fs_compare_inode_bitmap(ext2fs_inode_bitmap bm1, | |
670 | ext2fs_inode_bitmap bm2); | |
f1f115a7 TT |
671 | extern errcode_t ext2fs_set_inode_bitmap_range(ext2fs_inode_bitmap bmap, |
672 | ext2_ino_t start, unsigned int num, | |
673 | void *in); | |
674 | extern errcode_t ext2fs_get_inode_bitmap_range(ext2fs_inode_bitmap bmap, | |
675 | ext2_ino_t start, unsigned int num, | |
676 | void *out); | |
677 | extern errcode_t ext2fs_set_block_bitmap_range(ext2fs_block_bitmap bmap, | |
678 | blk_t start, unsigned int num, | |
679 | void *in); | |
680 | extern errcode_t ext2fs_get_block_bitmap_range(ext2fs_block_bitmap bmap, | |
681 | blk_t start, unsigned int num, | |
682 | void *out); | |
50448d3d | 683 | |
3839e657 TT |
684 | |
685 | /* block.c */ | |
686 | extern errcode_t ext2fs_block_iterate(ext2_filsys fs, | |
31dbecd4 | 687 | ext2_ino_t ino, |
3839e657 TT |
688 | int flags, |
689 | char *block_buf, | |
690 | int (*func)(ext2_filsys fs, | |
691 | blk_t *blocknr, | |
692 | int blockcnt, | |
b5abe6fa TT |
693 | void *priv_data), |
694 | void *priv_data); | |
19c78dc0 | 695 | errcode_t ext2fs_block_iterate2(ext2_filsys fs, |
31dbecd4 | 696 | ext2_ino_t ino, |
674a4ee1 TT |
697 | int flags, |
698 | char *block_buf, | |
699 | int (*func)(ext2_filsys fs, | |
700 | blk_t *blocknr, | |
03673dbb | 701 | e2_blkcnt_t blockcnt, |
674a4ee1 TT |
702 | blk_t ref_blk, |
703 | int ref_offset, | |
704 | void *priv_data), | |
705 | void *priv_data); | |
19c78dc0 | 706 | |
30fab293 | 707 | /* bmap.c */ |
31dbecd4 | 708 | extern errcode_t ext2fs_bmap(ext2_filsys fs, ext2_ino_t ino, |
efc6f628 | 709 | struct ext2_inode *inode, |
30fab293 TT |
710 | char *block_buf, int bmap_flags, |
711 | blk_t block, blk_t *phys_blk); | |
efc6f628 | 712 | extern errcode_t ext2fs_bmap2(ext2_filsys fs, ext2_ino_t ino, |
cc9bf5d2 TT |
713 | struct ext2_inode *inode, |
714 | char *block_buf, int bmap_flags, blk64_t block, | |
715 | int *ret_flags, blk64_t *phys_blk); | |
30fab293 | 716 | |
4a31c48b | 717 | #if 0 |
1e1da29f TT |
718 | /* bmove.c */ |
719 | extern errcode_t ext2fs_move_blocks(ext2_filsys fs, | |
720 | ext2fs_block_bitmap reserve, | |
9941fb73 | 721 | ext2fs_block_bitmap alloc_map, |
1e1da29f | 722 | int flags); |
4a31c48b | 723 | #endif |
1e1da29f | 724 | |
f3db3566 TT |
725 | /* check_desc.c */ |
726 | extern errcode_t ext2fs_check_desc(ext2_filsys fs); | |
727 | ||
3839e657 TT |
728 | /* closefs.c */ |
729 | extern errcode_t ext2fs_close(ext2_filsys fs); | |
730 | extern errcode_t ext2fs_flush(ext2_filsys fs); | |
1b4cd9c7 | 731 | extern int ext2fs_bg_has_super(ext2_filsys fs, int group_block); |
efc6f628 | 732 | extern int ext2fs_super_and_bgd_loc(ext2_filsys fs, |
ef344e13 TT |
733 | dgrp_t group, |
734 | blk_t *ret_super_blk, | |
735 | blk_t *ret_old_desc_blk, | |
736 | blk_t *ret_new_desc_blk, | |
737 | int *ret_meta_bg); | |
1b4cd9c7 | 738 | extern void ext2fs_update_dynamic_rev(ext2_filsys fs); |
3839e657 | 739 | |
ca2634a4 JS |
740 | /* csum.c */ |
741 | extern void ext2fs_group_desc_csum_set(ext2_filsys fs, dgrp_t group); | |
742 | extern int ext2fs_group_desc_csum_verify(ext2_filsys fs, dgrp_t group); | |
f628acea | 743 | extern errcode_t ext2fs_set_gdt_csum(ext2_filsys fs); |
ca2634a4 | 744 | |
19c78dc0 TT |
745 | /* dblist.c */ |
746 | ||
31dbecd4 | 747 | extern errcode_t ext2fs_get_num_dirs(ext2_filsys fs, ext2_ino_t *ret_num_dirs); |
a29f4d30 | 748 | extern errcode_t ext2fs_init_dblist(ext2_filsys fs, ext2_dblist *ret_dblist); |
31dbecd4 | 749 | extern errcode_t ext2fs_add_dir_block(ext2_dblist dblist, ext2_ino_t ino, |
a29f4d30 | 750 | blk_t blk, int blockcnt); |
ea1959f0 TT |
751 | extern void ext2fs_dblist_sort(ext2_dblist dblist, |
752 | EXT2_QSORT_TYPE (*sortfunc)(const void *, | |
753 | const void *)); | |
a29f4d30 TT |
754 | extern errcode_t ext2fs_dblist_iterate(ext2_dblist dblist, |
755 | int (*func)(ext2_filsys fs, struct ext2_db_entry *db_info, | |
b5abe6fa TT |
756 | void *priv_data), |
757 | void *priv_data); | |
31dbecd4 | 758 | extern errcode_t ext2fs_set_dir_block(ext2_dblist dblist, ext2_ino_t ino, |
a29f4d30 TT |
759 | blk_t blk, int blockcnt); |
760 | extern errcode_t ext2fs_copy_dblist(ext2_dblist src, | |
761 | ext2_dblist *dest); | |
549860c5 | 762 | extern int ext2fs_dblist_count(ext2_dblist dblist); |
efc6f628 | 763 | extern errcode_t ext2fs_dblist_get_last(ext2_dblist dblist, |
52b1dd5e TT |
764 | struct ext2_db_entry **entry); |
765 | extern errcode_t ext2fs_dblist_drop_last(ext2_dblist dblist); | |
19c78dc0 TT |
766 | |
767 | /* dblist_dir.c */ | |
768 | extern errcode_t | |
769 | ext2fs_dblist_dir_iterate(ext2_dblist dblist, | |
770 | int flags, | |
771 | char *block_buf, | |
31dbecd4 | 772 | int (*func)(ext2_ino_t dir, |
19c78dc0 TT |
773 | int entry, |
774 | struct ext2_dir_entry *dirent, | |
775 | int offset, | |
776 | int blocksize, | |
777 | char *buf, | |
b5abe6fa TT |
778 | void *priv_data), |
779 | void *priv_data); | |
50e1e10f TT |
780 | |
781 | /* dirblock.c */ | |
782 | extern errcode_t ext2fs_read_dir_block(ext2_filsys fs, blk_t block, | |
783 | void *buf); | |
f9190c8a TT |
784 | extern errcode_t ext2fs_read_dir_block2(ext2_filsys fs, blk_t block, |
785 | void *buf, int flags); | |
50e1e10f TT |
786 | extern errcode_t ext2fs_write_dir_block(ext2_filsys fs, blk_t block, |
787 | void *buf); | |
f9190c8a TT |
788 | extern errcode_t ext2fs_write_dir_block2(ext2_filsys fs, blk_t block, |
789 | void *buf, int flags); | |
50e1e10f | 790 | |
52783e0c TT |
791 | /* dirhash.c */ |
792 | extern errcode_t ext2fs_dirhash(int version, const char *name, int len, | |
b33278c4 | 793 | const __u32 *seed, |
503f9e7f TT |
794 | ext2_dirhash_t *ret_hash, |
795 | ext2_dirhash_t *ret_minor_hash); | |
52783e0c TT |
796 | |
797 | ||
19c78dc0 | 798 | /* dir_iterate.c */ |
efc6f628 | 799 | extern errcode_t ext2fs_dir_iterate(ext2_filsys fs, |
31dbecd4 | 800 | ext2_ino_t dir, |
19c78dc0 TT |
801 | int flags, |
802 | char *block_buf, | |
803 | int (*func)(struct ext2_dir_entry *dirent, | |
804 | int offset, | |
805 | int blocksize, | |
806 | char *buf, | |
b5abe6fa TT |
807 | void *priv_data), |
808 | void *priv_data); | |
efc6f628 | 809 | extern errcode_t ext2fs_dir_iterate2(ext2_filsys fs, |
8bd0c959 TT |
810 | ext2_ino_t dir, |
811 | int flags, | |
812 | char *block_buf, | |
813 | int (*func)(ext2_ino_t dir, | |
814 | int entry, | |
815 | struct ext2_dir_entry *dirent, | |
816 | int offset, | |
817 | int blocksize, | |
818 | char *buf, | |
819 | void *priv_data), | |
820 | void *priv_data); | |
19c78dc0 | 821 | |
a29f4d30 TT |
822 | /* dupfs.c */ |
823 | extern errcode_t ext2fs_dup_handle(ext2_filsys src, ext2_filsys *dest); | |
19c78dc0 | 824 | |
3839e657 | 825 | /* expanddir.c */ |
31dbecd4 | 826 | extern errcode_t ext2fs_expand_dir(ext2_filsys fs, ext2_ino_t dir); |
3839e657 | 827 | |
342d847d | 828 | /* ext_attr.c */ |
fefaef39 AD |
829 | extern __u32 ext2fs_ext_attr_hash_entry(struct ext2_ext_attr_entry *entry, |
830 | void *data); | |
342d847d | 831 | extern errcode_t ext2fs_read_ext_attr(ext2_filsys fs, blk_t block, void *buf); |
0684a4f3 TT |
832 | extern errcode_t ext2fs_write_ext_attr(ext2_filsys fs, blk_t block, |
833 | void *buf); | |
834 | extern errcode_t ext2fs_adjust_ea_refcount(ext2_filsys fs, blk_t blk, | |
835 | char *block_buf, | |
836 | int adjust, __u32 *newcount); | |
837 | ||
3eb07f64 TT |
838 | /* extent.c */ |
839 | extern errcode_t ext2fs_extent_header_verify(void *ptr, int size); | |
840 | extern errcode_t ext2fs_extent_open(ext2_filsys fs, ext2_ino_t ino, | |
841 | ext2_extent_handle_t *handle); | |
84b239ae | 842 | extern errcode_t ext2fs_extent_open2(ext2_filsys fs, ext2_ino_t ino, |
843 | struct ext2_inode *inode, | |
844 | ext2_extent_handle_t *ret_handle); | |
2d328bb7 | 845 | extern void ext2fs_extent_free(ext2_extent_handle_t handle); |
3eb07f64 TT |
846 | extern errcode_t ext2fs_extent_get(ext2_extent_handle_t handle, |
847 | int flags, struct ext2fs_extent *extent); | |
848 | extern errcode_t ext2fs_extent_replace(ext2_extent_handle_t handle, int flags, | |
849 | struct ext2fs_extent *extent); | |
850 | extern errcode_t ext2fs_extent_insert(ext2_extent_handle_t handle, int flags, | |
851 | struct ext2fs_extent *extent); | |
f4e9963c ES |
852 | extern errcode_t ext2fs_extent_set_bmap(ext2_extent_handle_t handle, |
853 | blk64_t logical, blk64_t physical, | |
854 | int flags); | |
3eb07f64 TT |
855 | extern errcode_t ext2fs_extent_delete(ext2_extent_handle_t handle, int flags); |
856 | extern errcode_t ext2fs_extent_get_info(ext2_extent_handle_t handle, | |
857 | struct ext2_extent_info *info); | |
858 | extern errcode_t ext2fs_extent_goto(ext2_extent_handle_t handle, | |
859 | blk64_t blk); | |
860 | ||
30fab293 | 861 | /* fileio.c */ |
a435ec34 TT |
862 | extern errcode_t ext2fs_file_open2(ext2_filsys fs, ext2_ino_t ino, |
863 | struct ext2_inode *inode, | |
864 | int flags, ext2_file_t *ret); | |
31dbecd4 | 865 | extern errcode_t ext2fs_file_open(ext2_filsys fs, ext2_ino_t ino, |
30fab293 | 866 | int flags, ext2_file_t *ret); |
79a90bda | 867 | extern ext2_filsys ext2fs_file_get_fs(ext2_file_t file); |
30fab293 | 868 | extern errcode_t ext2fs_file_close(ext2_file_t file); |
f12e285f | 869 | extern errcode_t ext2fs_file_flush(ext2_file_t file); |
30fab293 | 870 | extern errcode_t ext2fs_file_read(ext2_file_t file, void *buf, |
79a90bda | 871 | unsigned int wanted, unsigned int *got); |
f12e285f | 872 | extern errcode_t ext2fs_file_write(ext2_file_t file, const void *buf, |
79a90bda | 873 | unsigned int nbytes, unsigned int *written); |
819157db TT |
874 | extern errcode_t ext2fs_file_llseek(ext2_file_t file, __u64 offset, |
875 | int whence, __u64 *ret_pos); | |
674a4ee1 TT |
876 | extern errcode_t ext2fs_file_lseek(ext2_file_t file, ext2_off_t offset, |
877 | int whence, ext2_off_t *ret_pos); | |
819157db | 878 | errcode_t ext2fs_file_get_lsize(ext2_file_t file, __u64 *ret_size); |
79a90bda TT |
879 | extern ext2_off_t ext2fs_file_get_size(ext2_file_t file); |
880 | extern errcode_t ext2fs_file_set_size(ext2_file_t file, ext2_off_t size); | |
30fab293 | 881 | |
de23aa1d TT |
882 | /* finddev.c */ |
883 | extern char *ext2fs_find_block_device(dev_t device); | |
884 | ||
4d0f3e17 TT |
885 | /* flushb.c */ |
886 | extern errcode_t ext2fs_sync_device(int fd, int flushb); | |
887 | ||
3839e657 TT |
888 | /* freefs.c */ |
889 | extern void ext2fs_free(ext2_filsys fs); | |
a29f4d30 | 890 | extern void ext2fs_free_dblist(ext2_dblist dblist); |
b7a00563 TT |
891 | extern void ext2fs_badblocks_list_free(ext2_badblocks_list bb); |
892 | extern void ext2fs_u32_list_free(ext2_u32_list bb); | |
50e1e10f | 893 | |
a0553c9d TT |
894 | /* gen_bitmap.c */ |
895 | extern void ext2fs_free_generic_bitmap(ext2fs_inode_bitmap bitmap); | |
efc6f628 TT |
896 | extern errcode_t ext2fs_make_generic_bitmap(errcode_t magic, ext2_filsys fs, |
897 | __u32 start, __u32 end, | |
a0553c9d TT |
898 | __u32 real_end, |
899 | const char *descr, char *init_map, | |
900 | ext2fs_generic_bitmap *ret); | |
901 | extern errcode_t ext2fs_allocate_generic_bitmap(__u32 start, | |
902 | __u32 end, | |
903 | __u32 real_end, | |
904 | const char *descr, | |
905 | ext2fs_generic_bitmap *ret); | |
906 | extern errcode_t ext2fs_copy_generic_bitmap(ext2fs_generic_bitmap src, | |
907 | ext2fs_generic_bitmap *dest); | |
908 | extern void ext2fs_clear_generic_bitmap(ext2fs_generic_bitmap bitmap); | |
909 | extern errcode_t ext2fs_fudge_generic_bitmap_end(ext2fs_inode_bitmap bitmap, | |
efc6f628 | 910 | errcode_t magic, |
a0553c9d | 911 | errcode_t neq, |
efc6f628 | 912 | ext2_ino_t end, |
a0553c9d TT |
913 | ext2_ino_t *oend); |
914 | extern void ext2fs_set_generic_bitmap_padding(ext2fs_generic_bitmap map); | |
50448d3d TT |
915 | extern errcode_t ext2fs_resize_generic_bitmap(errcode_t magic, |
916 | __u32 new_end, | |
917 | __u32 new_real_end, | |
918 | ext2fs_generic_bitmap bmap); | |
919 | extern errcode_t ext2fs_compare_generic_bitmap(errcode_t magic, errcode_t neq, | |
920 | ext2fs_generic_bitmap bm1, | |
921 | ext2fs_generic_bitmap bm2); | |
f1f115a7 TT |
922 | extern errcode_t ext2fs_get_generic_bitmap_range(ext2fs_generic_bitmap bmap, |
923 | errcode_t magic, | |
924 | __u32 start, __u32 num, | |
925 | void *out); | |
926 | extern errcode_t ext2fs_set_generic_bitmap_range(ext2fs_generic_bitmap bmap, | |
927 | errcode_t magic, | |
928 | __u32 start, __u32 num, | |
929 | void *in); | |
a0553c9d | 930 | |
50e1e10f TT |
931 | /* getsize.c */ |
932 | extern errcode_t ext2fs_get_device_size(const char *file, int blocksize, | |
933 | blk_t *retblocks); | |
beab8de4 JS |
934 | extern errcode_t ext2fs_get_device_size2(const char *file, int blocksize, |
935 | blk64_t *retblocks); | |
3839e657 | 936 | |
93d5c387 TT |
937 | /* getsectsize.c */ |
938 | errcode_t ext2fs_get_device_sectsize(const char *file, int *sectsize); | |
939 | ||
1ca1059f TT |
940 | /* i_block.c */ |
941 | errcode_t ext2fs_iblk_add_blocks(ext2_filsys fs, struct ext2_inode *inode, | |
942 | blk64_t num_blocks); | |
943 | errcode_t ext2fs_iblk_sub_blocks(ext2_filsys fs, struct ext2_inode *inode, | |
944 | blk64_t num_blocks); | |
945 | errcode_t ext2fs_iblk_set(ext2_filsys fs, struct ext2_inode *inode, blk64_t b); | |
946 | ||
72ed1264 TT |
947 | /* imager.c */ |
948 | extern errcode_t ext2fs_image_inode_write(ext2_filsys fs, int fd, int flags); | |
949 | extern errcode_t ext2fs_image_inode_read(ext2_filsys fs, int fd, int flags); | |
950 | extern errcode_t ext2fs_image_super_write(ext2_filsys fs, int fd, int flags); | |
951 | extern errcode_t ext2fs_image_super_read(ext2_filsys fs, int fd, int flags); | |
952 | extern errcode_t ext2fs_image_bitmap_write(ext2_filsys fs, int fd, int flags); | |
953 | extern errcode_t ext2fs_image_bitmap_read(ext2_filsys fs, int fd, int flags); | |
954 | ||
dc8ce346 TT |
955 | /* ind_block.c */ |
956 | errcode_t ext2fs_read_ind_block(ext2_filsys fs, blk_t blk, void *buf); | |
957 | errcode_t ext2fs_write_ind_block(ext2_filsys fs, blk_t blk, void *buf); | |
958 | ||
3839e657 TT |
959 | /* initialize.c */ |
960 | extern errcode_t ext2fs_initialize(const char *name, int flags, | |
961 | struct ext2_super_block *param, | |
962 | io_manager manager, ext2_filsys *ret_fs); | |
963 | ||
f12e285f TT |
964 | /* icount.c */ |
965 | extern void ext2fs_free_icount(ext2_icount_t icount); | |
1b9d8cb7 TT |
966 | extern errcode_t ext2fs_create_icount_tdb(ext2_filsys fs, char *tdb_dir, |
967 | int flags, ext2_icount_t *ret); | |
efc6f628 | 968 | extern errcode_t ext2fs_create_icount2(ext2_filsys fs, int flags, |
54434927 | 969 | unsigned int size, |
f12e285f | 970 | ext2_icount_t hint, ext2_icount_t *ret); |
efc6f628 | 971 | extern errcode_t ext2fs_create_icount(ext2_filsys fs, int flags, |
54434927 | 972 | unsigned int size, |
f12e285f TT |
973 | ext2_icount_t *ret); |
974 | extern errcode_t ext2fs_icount_fetch(ext2_icount_t icount, ext2_ino_t ino, | |
975 | __u16 *ret); | |
976 | extern errcode_t ext2fs_icount_increment(ext2_icount_t icount, ext2_ino_t ino, | |
977 | __u16 *ret); | |
978 | extern errcode_t ext2fs_icount_decrement(ext2_icount_t icount, ext2_ino_t ino, | |
979 | __u16 *ret); | |
980 | extern errcode_t ext2fs_icount_store(ext2_icount_t icount, ext2_ino_t ino, | |
981 | __u16 count); | |
982 | extern ext2_ino_t ext2fs_get_icount_size(ext2_icount_t icount); | |
983 | errcode_t ext2fs_icount_validate(ext2_icount_t icount, FILE *); | |
984 | ||
3839e657 | 985 | /* inode.c */ |
72ed1264 | 986 | extern errcode_t ext2fs_flush_icache(ext2_filsys fs); |
efc6f628 | 987 | extern errcode_t ext2fs_get_next_inode_full(ext2_inode_scan scan, |
7331196a | 988 | ext2_ino_t *ino, |
efc6f628 | 989 | struct ext2_inode *inode, |
7331196a | 990 | int bufsize); |
3839e657 TT |
991 | extern errcode_t ext2fs_open_inode_scan(ext2_filsys fs, int buffer_blocks, |
992 | ext2_inode_scan *ret_scan); | |
993 | extern void ext2fs_close_inode_scan(ext2_inode_scan scan); | |
31dbecd4 | 994 | extern errcode_t ext2fs_get_next_inode(ext2_inode_scan scan, ext2_ino_t *ino, |
3839e657 | 995 | struct ext2_inode *inode); |
19c78dc0 TT |
996 | extern errcode_t ext2fs_inode_scan_goto_blockgroup(ext2_inode_scan scan, |
997 | int group); | |
998 | extern void ext2fs_set_inode_callback | |
999 | (ext2_inode_scan scan, | |
1000 | errcode_t (*done_group)(ext2_filsys fs, | |
1001 | ext2_inode_scan scan, | |
1002 | dgrp_t group, | |
b5abe6fa | 1003 | void * priv_data), |
19c78dc0 TT |
1004 | void *done_group_data); |
1005 | extern int ext2fs_inode_scan_flags(ext2_inode_scan scan, int set_flags, | |
1006 | int clear_flags); | |
7331196a | 1007 | extern errcode_t ext2fs_read_inode_full(ext2_filsys fs, ext2_ino_t ino, |
efc6f628 | 1008 | struct ext2_inode * inode, |
7331196a | 1009 | int bufsize); |
31dbecd4 | 1010 | extern errcode_t ext2fs_read_inode (ext2_filsys fs, ext2_ino_t ino, |
3839e657 | 1011 | struct ext2_inode * inode); |
7331196a | 1012 | extern errcode_t ext2fs_write_inode_full(ext2_filsys fs, ext2_ino_t ino, |
efc6f628 | 1013 | struct ext2_inode * inode, |
7331196a | 1014 | int bufsize); |
31dbecd4 | 1015 | extern errcode_t ext2fs_write_inode(ext2_filsys fs, ext2_ino_t ino, |
3839e657 | 1016 | struct ext2_inode * inode); |
030970ed TT |
1017 | extern errcode_t ext2fs_write_new_inode(ext2_filsys fs, ext2_ino_t ino, |
1018 | struct ext2_inode * inode); | |
31dbecd4 TT |
1019 | extern errcode_t ext2fs_get_blocks(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks); |
1020 | extern errcode_t ext2fs_check_directory(ext2_filsys fs, ext2_ino_t ino); | |
3839e657 | 1021 | |
f12e285f TT |
1022 | /* inode_io.c */ |
1023 | extern io_manager inode_io_manager; | |
efc6f628 | 1024 | extern errcode_t ext2fs_inode_io_intern(ext2_filsys fs, ext2_ino_t ino, |
546a1ff1 | 1025 | char **name); |
a435ec34 TT |
1026 | extern errcode_t ext2fs_inode_io_intern2(ext2_filsys fs, ext2_ino_t ino, |
1027 | struct ext2_inode *inode, | |
1028 | char **name); | |
efc6f628 | 1029 | |
50e1e10f TT |
1030 | /* ismounted.c */ |
1031 | extern errcode_t ext2fs_check_if_mounted(const char *file, int *mount_flags); | |
43ec8734 TT |
1032 | extern errcode_t ext2fs_check_mount_point(const char *device, int *mount_flags, |
1033 | char *mtpt, int mtlen); | |
50e1e10f | 1034 | |
3839e657 | 1035 | /* namei.c */ |
31dbecd4 TT |
1036 | extern errcode_t ext2fs_lookup(ext2_filsys fs, ext2_ino_t dir, const char *name, |
1037 | int namelen, char *buf, ext2_ino_t *inode); | |
1038 | extern errcode_t ext2fs_namei(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd, | |
1039 | const char *name, ext2_ino_t *inode); | |
1040 | errcode_t ext2fs_namei_follow(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd, | |
1041 | const char *name, ext2_ino_t *inode); | |
1042 | extern errcode_t ext2fs_follow_link(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd, | |
1043 | ext2_ino_t inode, ext2_ino_t *res_inode); | |
1e3472c5 TT |
1044 | |
1045 | /* native.c */ | |
1046 | int ext2fs_native_flag(void); | |
3839e657 TT |
1047 | |
1048 | /* newdir.c */ | |
31dbecd4 TT |
1049 | extern errcode_t ext2fs_new_dir_block(ext2_filsys fs, ext2_ino_t dir_ino, |
1050 | ext2_ino_t parent_ino, char **block); | |
3839e657 TT |
1051 | |
1052 | /* mkdir.c */ | |
31dbecd4 | 1053 | extern errcode_t ext2fs_mkdir(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t inum, |
3839e657 TT |
1054 | const char *name); |
1055 | ||
d3cd93ca | 1056 | /* mkjournal.c */ |
c8608504 TT |
1057 | extern errcode_t ext2fs_zero_blocks(ext2_filsys fs, blk_t blk, int num, |
1058 | blk_t *ret_blk, int *ret_count); | |
a112847b TT |
1059 | extern errcode_t ext2fs_create_journal_superblock(ext2_filsys fs, |
1060 | __u32 size, int flags, | |
1061 | char **ret_jsb); | |
1062 | extern errcode_t ext2fs_add_journal_device(ext2_filsys fs, | |
1063 | ext2_filsys journal_dev); | |
31a17b36 TT |
1064 | extern errcode_t ext2fs_add_journal_inode(ext2_filsys fs, blk_t size, |
1065 | int flags); | |
56d12367 | 1066 | extern int ext2fs_default_journal_size(__u64 blocks); |
d3cd93ca | 1067 | |
3839e657 TT |
1068 | /* openfs.c */ |
1069 | extern errcode_t ext2fs_open(const char *name, int flags, int superblock, | |
54434927 | 1070 | unsigned int block_size, io_manager manager, |
3839e657 | 1071 | ext2_filsys *ret_fs); |
efc6f628 TT |
1072 | extern errcode_t ext2fs_open2(const char *name, const char *io_options, |
1073 | int flags, int superblock, | |
2e8ca9a2 TT |
1074 | unsigned int block_size, io_manager manager, |
1075 | ext2_filsys *ret_fs); | |
efc6f628 | 1076 | extern blk_t ext2fs_descriptor_block_loc(ext2_filsys fs, blk_t group_block, |
c046ac7f | 1077 | dgrp_t i); |
1ad54a94 TT |
1078 | errcode_t ext2fs_get_data_io(ext2_filsys fs, io_channel *old_io); |
1079 | errcode_t ext2fs_set_data_io(ext2_filsys fs, io_channel new_io); | |
1080 | errcode_t ext2fs_rewrite_to_io(ext2_filsys fs, io_channel new_io); | |
3839e657 TT |
1081 | |
1082 | /* get_pathname.c */ | |
31dbecd4 | 1083 | extern errcode_t ext2fs_get_pathname(ext2_filsys fs, ext2_ino_t dir, ext2_ino_t ino, |
3839e657 TT |
1084 | char **name); |
1085 | ||
1086 | /* link.c */ | |
31dbecd4 TT |
1087 | errcode_t ext2fs_link(ext2_filsys fs, ext2_ino_t dir, const char *name, |
1088 | ext2_ino_t ino, int flags); | |
1089 | errcode_t ext2fs_unlink(ext2_filsys fs, ext2_ino_t dir, const char *name, | |
1090 | ext2_ino_t ino, int flags); | |
3839e657 TT |
1091 | |
1092 | /* read_bb.c */ | |
19c78dc0 TT |
1093 | extern errcode_t ext2fs_read_bb_inode(ext2_filsys fs, |
1094 | ext2_badblocks_list *bb_list); | |
3839e657 TT |
1095 | |
1096 | /* read_bb_file.c */ | |
efc6f628 | 1097 | extern errcode_t ext2fs_read_bb_FILE2(ext2_filsys fs, FILE *f, |
57dca854 | 1098 | ext2_badblocks_list *bb_list, |
50cd7e06 | 1099 | void *priv_data, |
57dca854 TT |
1100 | void (*invalid)(ext2_filsys fs, |
1101 | blk_t blk, | |
1102 | char *badstr, | |
50cd7e06 | 1103 | void *priv_data)); |
efc6f628 | 1104 | extern errcode_t ext2fs_read_bb_FILE(ext2_filsys fs, FILE *f, |
19c78dc0 | 1105 | ext2_badblocks_list *bb_list, |
3839e657 TT |
1106 | void (*invalid)(ext2_filsys fs, |
1107 | blk_t blk)); | |
1108 | ||
d323f8fb TT |
1109 | /* res_gdt.c */ |
1110 | extern errcode_t ext2fs_create_resize_inode(ext2_filsys fs); | |
1111 | ||
50e1e10f | 1112 | /* swapfs.c */ |
efc6f628 | 1113 | extern void ext2fs_swap_ext_attr(char *to, char *from, int bufsize, |
7331196a | 1114 | int has_header); |
fefaef39 AD |
1115 | extern void ext2fs_swap_ext_attr_header(struct ext2_ext_attr_header *to_header, |
1116 | struct ext2_ext_attr_header *from_hdr); | |
1117 | extern void ext2fs_swap_ext_attr_entry(struct ext2_ext_attr_entry *to_entry, | |
1118 | struct ext2_ext_attr_entry *from_entry); | |
50e1e10f TT |
1119 | extern void ext2fs_swap_super(struct ext2_super_block * super); |
1120 | extern void ext2fs_swap_group_desc(struct ext2_group_desc *gdp); | |
7331196a TT |
1121 | extern void ext2fs_swap_inode_full(ext2_filsys fs, struct ext2_inode_large *t, |
1122 | struct ext2_inode_large *f, int hostorder, | |
1123 | int bufsize); | |
1e3472c5 TT |
1124 | extern void ext2fs_swap_inode(ext2_filsys fs,struct ext2_inode *t, |
1125 | struct ext2_inode *f, int hostorder); | |
1126 | ||
19c78dc0 | 1127 | /* valid_blk.c */ |
521e3685 TT |
1128 | extern int ext2fs_inode_has_valid_blocks(struct ext2_inode *inode); |
1129 | ||
1130 | /* version.c */ | |
1131 | extern int ext2fs_parse_version_string(const char *ver_string); | |
1132 | extern int ext2fs_get_library_version(const char **ver_string, | |
1133 | const char **date_string); | |
50e1e10f | 1134 | |
31dbecd4 TT |
1135 | /* write_bb_file.c */ |
1136 | extern errcode_t ext2fs_write_bb_FILE(ext2_badblocks_list bb_list, | |
1137 | unsigned int flags, | |
1138 | FILE *f); | |
1139 | ||
1140 | ||
3839e657 | 1141 | /* inline functions */ |
c4e3d3f3 | 1142 | extern errcode_t ext2fs_get_mem(unsigned long size, void *ptr); |
ee01079a | 1143 | extern errcode_t ext2fs_get_array(unsigned long count, unsigned long size, void *ptr); |
c4e3d3f3 | 1144 | extern errcode_t ext2fs_free_mem(void *ptr); |
76f875da | 1145 | extern errcode_t ext2fs_resize_mem(unsigned long old_size, |
c4e3d3f3 | 1146 | unsigned long size, void *ptr); |
3839e657 TT |
1147 | extern void ext2fs_mark_super_dirty(ext2_filsys fs); |
1148 | extern void ext2fs_mark_changed(ext2_filsys fs); | |
1149 | extern int ext2fs_test_changed(ext2_filsys fs); | |
1150 | extern void ext2fs_mark_valid(ext2_filsys fs); | |
1151 | extern void ext2fs_unmark_valid(ext2_filsys fs); | |
1152 | extern int ext2fs_test_valid(ext2_filsys fs); | |
1153 | extern void ext2fs_mark_ib_dirty(ext2_filsys fs); | |
1154 | extern void ext2fs_mark_bb_dirty(ext2_filsys fs); | |
1155 | extern int ext2fs_test_ib_dirty(ext2_filsys fs); | |
1156 | extern int ext2fs_test_bb_dirty(ext2_filsys fs); | |
1157 | extern int ext2fs_group_of_blk(ext2_filsys fs, blk_t blk); | |
31dbecd4 | 1158 | extern int ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino); |
abf23439 ES |
1159 | extern blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group); |
1160 | extern blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group); | |
0684a4f3 TT |
1161 | extern blk_t ext2fs_inode_data_blocks(ext2_filsys fs, |
1162 | struct ext2_inode *inode); | |
69022e02 | 1163 | extern unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b); |
3839e657 TT |
1164 | |
1165 | /* | |
1166 | * The actual inlined functions definitions themselves... | |
1167 | * | |
1168 | * If NO_INLINE_FUNCS is defined, then we won't try to do inline | |
1169 | * functions at all! | |
1170 | */ | |
1171 | #if (defined(INCLUDE_INLINE_FUNCS) || !defined(NO_INLINE_FUNCS)) | |
1172 | #ifdef INCLUDE_INLINE_FUNCS | |
1173 | #define _INLINE_ extern | |
1174 | #else | |
76f875da | 1175 | #ifdef __GNUC__ |
3839e657 | 1176 | #define _INLINE_ extern __inline__ |
76f875da TT |
1177 | #else /* For Watcom C */ |
1178 | #define _INLINE_ extern inline | |
1179 | #endif | |
3839e657 TT |
1180 | #endif |
1181 | ||
7b4e4534 | 1182 | #ifndef EXT2_CUSTOM_MEMORY_ROUTINES |
68a7f959 | 1183 | #include <string.h> |
7b4e4534 TT |
1184 | /* |
1185 | * Allocate memory | |
1186 | */ | |
c4e3d3f3 | 1187 | _INLINE_ errcode_t ext2fs_get_mem(unsigned long size, void *ptr) |
7b4e4534 | 1188 | { |
2694f319 | 1189 | void *pp; |
c4e3d3f3 | 1190 | |
2694f319 TT |
1191 | pp = malloc(size); |
1192 | if (!pp) | |
291c9049 | 1193 | return EXT2_ET_NO_MEMORY; |
2694f319 | 1194 | memcpy(ptr, &pp, sizeof (pp)); |
7b4e4534 TT |
1195 | return 0; |
1196 | } | |
e5aace90 | 1197 | |
ee01079a TT |
1198 | _INLINE_ errcode_t ext2fs_get_array(unsigned long count, unsigned long size, void *ptr) |
1199 | { | |
1200 | if (count && (-1UL)/count<size) | |
1201 | return EXT2_ET_NO_MEMORY; //maybe define EXT2_ET_OVERFLOW ? | |
1202 | return ext2fs_get_mem(count*size, ptr); | |
1203 | } | |
7b4e4534 TT |
1204 | |
1205 | /* | |
1206 | * Free memory | |
1207 | */ | |
c4e3d3f3 | 1208 | _INLINE_ errcode_t ext2fs_free_mem(void *ptr) |
7b4e4534 | 1209 | { |
2694f319 | 1210 | void *p; |
c4e3d3f3 | 1211 | |
2694f319 TT |
1212 | memcpy(&p, ptr, sizeof(p)); |
1213 | free(p); | |
1214 | p = 0; | |
1215 | memcpy(ptr, &p, sizeof(p)); | |
7b4e4534 TT |
1216 | return 0; |
1217 | } | |
efc6f628 | 1218 | |
7b4e4534 TT |
1219 | /* |
1220 | * Resize memory | |
1221 | */ | |
e47fd841 | 1222 | _INLINE_ errcode_t ext2fs_resize_mem(unsigned long EXT2FS_ATTR((unused)) old_size, |
c4e3d3f3 | 1223 | unsigned long size, void *ptr) |
7b4e4534 TT |
1224 | { |
1225 | void *p; | |
1226 | ||
39c191f5 ST |
1227 | /* Use "memcpy" for pointer assignments here to avoid problems |
1228 | * with C99 strict type aliasing rules. */ | |
2694f319 | 1229 | memcpy(&p, ptr, sizeof(p)); |
39c191f5 | 1230 | p = realloc(p, size); |
7b4e4534 | 1231 | if (!p) |
291c9049 | 1232 | return EXT2_ET_NO_MEMORY; |
2694f319 | 1233 | memcpy(ptr, &p, sizeof(p)); |
7b4e4534 TT |
1234 | return 0; |
1235 | } | |
1236 | #endif /* Custom memory routines */ | |
1237 | ||
3839e657 TT |
1238 | /* |
1239 | * Mark a filesystem superblock as dirty | |
1240 | */ | |
1241 | _INLINE_ void ext2fs_mark_super_dirty(ext2_filsys fs) | |
1242 | { | |
1243 | fs->flags |= EXT2_FLAG_DIRTY | EXT2_FLAG_CHANGED; | |
1244 | } | |
1245 | ||
1246 | /* | |
1247 | * Mark a filesystem as changed | |
1248 | */ | |
1249 | _INLINE_ void ext2fs_mark_changed(ext2_filsys fs) | |
1250 | { | |
1251 | fs->flags |= EXT2_FLAG_CHANGED; | |
1252 | } | |
1253 | ||
1254 | /* | |
1255 | * Check to see if a filesystem has changed | |
1256 | */ | |
1257 | _INLINE_ int ext2fs_test_changed(ext2_filsys fs) | |
1258 | { | |
1259 | return (fs->flags & EXT2_FLAG_CHANGED); | |
1260 | } | |
1261 | ||
1262 | /* | |
1263 | * Mark a filesystem as valid | |
1264 | */ | |
1265 | _INLINE_ void ext2fs_mark_valid(ext2_filsys fs) | |
1266 | { | |
1267 | fs->flags |= EXT2_FLAG_VALID; | |
1268 | } | |
1269 | ||
1270 | /* | |
1271 | * Mark a filesystem as NOT valid | |
1272 | */ | |
1273 | _INLINE_ void ext2fs_unmark_valid(ext2_filsys fs) | |
1274 | { | |
1275 | fs->flags &= ~EXT2_FLAG_VALID; | |
1276 | } | |
1277 | ||
1278 | /* | |
1279 | * Check to see if a filesystem is valid | |
1280 | */ | |
1281 | _INLINE_ int ext2fs_test_valid(ext2_filsys fs) | |
1282 | { | |
1283 | return (fs->flags & EXT2_FLAG_VALID); | |
1284 | } | |
1285 | ||
1286 | /* | |
1287 | * Mark the inode bitmap as dirty | |
1288 | */ | |
1289 | _INLINE_ void ext2fs_mark_ib_dirty(ext2_filsys fs) | |
1290 | { | |
1291 | fs->flags |= EXT2_FLAG_IB_DIRTY | EXT2_FLAG_CHANGED; | |
1292 | } | |
1293 | ||
1294 | /* | |
1295 | * Mark the block bitmap as dirty | |
1296 | */ | |
1297 | _INLINE_ void ext2fs_mark_bb_dirty(ext2_filsys fs) | |
1298 | { | |
1299 | fs->flags |= EXT2_FLAG_BB_DIRTY | EXT2_FLAG_CHANGED; | |
1300 | } | |
1301 | ||
1302 | /* | |
1303 | * Check to see if a filesystem's inode bitmap is dirty | |
1304 | */ | |
1305 | _INLINE_ int ext2fs_test_ib_dirty(ext2_filsys fs) | |
1306 | { | |
1307 | return (fs->flags & EXT2_FLAG_IB_DIRTY); | |
1308 | } | |
1309 | ||
1310 | /* | |
1311 | * Check to see if a filesystem's block bitmap is dirty | |
1312 | */ | |
1313 | _INLINE_ int ext2fs_test_bb_dirty(ext2_filsys fs) | |
1314 | { | |
1315 | return (fs->flags & EXT2_FLAG_BB_DIRTY); | |
1316 | } | |
1317 | ||
1318 | /* | |
1319 | * Return the group # of a block | |
1320 | */ | |
1321 | _INLINE_ int ext2fs_group_of_blk(ext2_filsys fs, blk_t blk) | |
1322 | { | |
1323 | return (blk - fs->super->s_first_data_block) / | |
1324 | fs->super->s_blocks_per_group; | |
1325 | } | |
1326 | ||
1327 | /* | |
1328 | * Return the group # of an inode number | |
1329 | */ | |
31dbecd4 | 1330 | _INLINE_ int ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino) |
3839e657 TT |
1331 | { |
1332 | return (ino - 1) / fs->super->s_inodes_per_group; | |
1333 | } | |
0684a4f3 | 1334 | |
abf23439 ES |
1335 | /* |
1336 | * Return the first block (inclusive) in a group | |
1337 | */ | |
1338 | _INLINE_ blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group) | |
1339 | { | |
1340 | return fs->super->s_first_data_block + | |
1341 | (group * fs->super->s_blocks_per_group); | |
1342 | } | |
1343 | ||
1344 | /* | |
1345 | * Return the last block (inclusive) in a group | |
1346 | */ | |
1347 | _INLINE_ blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group) | |
1348 | { | |
1349 | return (group == fs->group_desc_count - 1 ? | |
1350 | fs->super->s_blocks_count - 1 : | |
1351 | ext2fs_group_first_block(fs, group) + | |
1352 | (fs->super->s_blocks_per_group - 1)); | |
1353 | } | |
1354 | ||
0684a4f3 TT |
1355 | _INLINE_ blk_t ext2fs_inode_data_blocks(ext2_filsys fs, |
1356 | struct ext2_inode *inode) | |
1357 | { | |
1358 | return inode->i_blocks - | |
1359 | (inode->i_file_acl ? fs->blocksize >> 9 : 0); | |
1360 | } | |
69022e02 TT |
1361 | |
1362 | /* | |
1363 | * This is an efficient, overflow safe way of calculating ceil((1.0 * a) / b) | |
1364 | */ | |
1365 | _INLINE_ unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b) | |
1366 | { | |
1367 | if (!a) | |
1368 | return 0; | |
1369 | return ((a - 1) / b) + 1; | |
1370 | } | |
3839e657 TT |
1371 | #undef _INLINE_ |
1372 | #endif | |
1373 | ||
fa7ef717 TT |
1374 | #ifdef __cplusplus |
1375 | } | |
1376 | #endif | |
1377 | ||
9abd2ce9 | 1378 | #endif /* _EXT2FS_EXT2FS_H */ |