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3839e657 TT |
1 | /* |
2 | * ext2fs.h --- ext2fs | |
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 | ||
5df55d7f TT |
32 | /* |
33 | * Build in support for byte-swapping filesystems if we the feature | |
34 | * has been configured or if we're being built on a CPU architecture | |
35 | * with a non-native byte order. | |
36 | */ | |
37 | #if defined(ENABLE_SWAPFS) || defined(WORDS_BIGENDIAN) | |
38 | #define EXT2FS_ENABLE_SWAPFS | |
39 | #endif | |
40 | ||
3839e657 TT |
41 | /* |
42 | * Where the master copy of the superblock is located, and how big | |
43 | * superblocks are supposed to be. We define SUPERBLOCK_SIZE because | |
44 | * the size of the superblock structure is not necessarily trustworthy | |
45 | * (some versions have the padding set up so that the superblock is | |
46 | * 1032 bytes long). | |
47 | */ | |
48 | #define SUPERBLOCK_OFFSET 1024 | |
49 | #define SUPERBLOCK_SIZE 1024 | |
50 | ||
f3db3566 TT |
51 | /* |
52 | * The last ext2fs revision level that this version of the library is | |
53 | * able to support. | |
54 | */ | |
e5b38a5f | 55 | #define EXT2_LIB_CURRENT_REV EXT2_DYNAMIC_REV |
f3db3566 | 56 | |
d40259fd | 57 | #ifdef HAVE_SYS_TYPES_H |
1e3472c5 | 58 | #include <sys/types.h> |
d40259fd TT |
59 | #endif |
60 | ||
3e699064 | 61 | #include <stdio.h> |
5be8dc21 | 62 | #include <stdlib.h> |
a82a5702 | 63 | #include <string.h> |
5953b9de TT |
64 | |
65 | #if EXT2_FLAT_INCLUDES | |
66 | #include "e2_types.h" | |
3e699064 | 67 | #include "ext2_fs.h" |
5953b9de | 68 | #else |
797f5ef1 | 69 | #include <ext2fs/ext2_types.h> |
3e699064 | 70 | #include <ext2fs/ext2_fs.h> |
e589f678 | 71 | #endif /* EXT2_FLAT_INCLUDES */ |
50e1e10f | 72 | |
31dbecd4 | 73 | typedef __u32 ext2_ino_t; |
50e1e10f | 74 | typedef __u32 blk_t; |
2eb374c9 | 75 | typedef __u32 dgrp_t; |
30fab293 | 76 | typedef __u32 ext2_off_t; |
03673dbb | 77 | typedef __s64 e2_blkcnt_t; |
52783e0c | 78 | typedef __u32 ext2_dirhash_t; |
3839e657 | 79 | |
b5abe6fa TT |
80 | #if EXT2_FLAT_INCLUDES |
81 | #include "com_err.h" | |
82 | #include "ext2_io.h" | |
83 | #include "ext2_err.h" | |
84 | #else | |
7c2d2569 TT |
85 | #include <et/com_err.h> |
86 | #include <ext2fs/ext2_io.h> | |
87 | #include <ext2fs/ext2_err.h> | |
b5abe6fa | 88 | #endif |
3839e657 | 89 | |
4c77fe50 TT |
90 | /* |
91 | * Portability help for Microsoft Visual C++ | |
92 | */ | |
93 | #ifdef _MSC_VER | |
94 | #define EXT2_QSORT_TYPE int __cdecl | |
95 | #else | |
96 | #define EXT2_QSORT_TYPE int | |
97 | #endif | |
98 | ||
f3db3566 TT |
99 | typedef struct struct_ext2_filsys *ext2_filsys; |
100 | ||
1e3472c5 | 101 | struct ext2fs_struct_generic_bitmap { |
4cbe8af4 | 102 | errcode_t magic; |
1e3472c5 TT |
103 | ext2_filsys fs; |
104 | __u32 start, end; | |
105 | __u32 real_end; | |
106 | char * description; | |
107 | char * bitmap; | |
108 | errcode_t base_error_code; | |
109 | __u32 reserved[7]; | |
f3db3566 TT |
110 | }; |
111 | ||
1e3472c5 TT |
112 | #define EXT2FS_MARK_ERROR 0 |
113 | #define EXT2FS_UNMARK_ERROR 1 | |
114 | #define EXT2FS_TEST_ERROR 2 | |
f3db3566 | 115 | |
1e3472c5 | 116 | typedef struct ext2fs_struct_generic_bitmap *ext2fs_generic_bitmap; |
1e3472c5 | 117 | typedef struct ext2fs_struct_generic_bitmap *ext2fs_inode_bitmap; |
1e3472c5 | 118 | typedef struct ext2fs_struct_generic_bitmap *ext2fs_block_bitmap; |
f3db3566 | 119 | |
7f88b043 | 120 | #define EXT2_FIRST_INODE(s) EXT2_FIRST_INO(s) |
067911ae | 121 | |
7f88b043 | 122 | |
19c78dc0 | 123 | /* |
067911ae | 124 | * Badblocks list definitions |
19c78dc0 TT |
125 | */ |
126 | ||
b7a00563 TT |
127 | typedef struct ext2_struct_u32_list *ext2_badblocks_list; |
128 | typedef struct ext2_struct_u32_iterate *ext2_badblocks_iterate; | |
129 | ||
130 | typedef struct ext2_struct_u32_list *ext2_u32_list; | |
131 | typedef struct ext2_struct_u32_iterate *ext2_u32_iterate; | |
19c78dc0 TT |
132 | |
133 | /* old */ | |
b7a00563 TT |
134 | typedef struct ext2_struct_u32_list *badblocks_list; |
135 | typedef struct ext2_struct_u32_iterate *badblocks_iterate; | |
19c78dc0 TT |
136 | |
137 | #define BADBLOCKS_FLAG_DIRTY 1 | |
138 | ||
139 | /* | |
140 | * ext2_dblist structure and abstractions (see dblist.c) | |
141 | */ | |
142 | struct ext2_db_entry { | |
31dbecd4 | 143 | ext2_ino_t ino; |
19c78dc0 TT |
144 | blk_t blk; |
145 | int blockcnt; | |
146 | }; | |
147 | ||
148 | typedef struct ext2_struct_dblist *ext2_dblist; | |
149 | ||
150 | #define DBLIST_ABORT 1 | |
151 | ||
30fab293 TT |
152 | /* |
153 | * ext2_fileio definitions | |
154 | */ | |
155 | ||
156 | #define EXT2_FILE_WRITE 0x0001 | |
157 | #define EXT2_FILE_CREATE 0x0002 | |
158 | ||
159 | #define EXT2_FILE_MASK 0x00FF | |
160 | ||
161 | #define EXT2_FILE_BUF_DIRTY 0x4000 | |
162 | #define EXT2_FILE_BUF_VALID 0x2000 | |
163 | ||
164 | typedef struct ext2_file *ext2_file_t; | |
165 | ||
166 | #define EXT2_SEEK_SET 0 | |
167 | #define EXT2_SEEK_CUR 1 | |
168 | #define EXT2_SEEK_END 2 | |
169 | ||
3839e657 | 170 | /* |
a112847b | 171 | * Flags for the ext2_filsys structure and for ext2fs_open() |
3839e657 | 172 | */ |
19c78dc0 TT |
173 | #define EXT2_FLAG_RW 0x01 |
174 | #define EXT2_FLAG_CHANGED 0x02 | |
175 | #define EXT2_FLAG_DIRTY 0x04 | |
176 | #define EXT2_FLAG_VALID 0x08 | |
177 | #define EXT2_FLAG_IB_DIRTY 0x10 | |
178 | #define EXT2_FLAG_BB_DIRTY 0x20 | |
5c576477 TT |
179 | #define EXT2_FLAG_SWAP_BYTES 0x40 |
180 | #define EXT2_FLAG_SWAP_BYTES_READ 0x80 | |
181 | #define EXT2_FLAG_SWAP_BYTES_WRITE 0x100 | |
182 | #define EXT2_FLAG_MASTER_SB_ONLY 0x200 | |
19c78dc0 | 183 | #define EXT2_FLAG_FORCE 0x400 |
43ec8734 | 184 | #define EXT2_FLAG_SUPER_ONLY 0x800 |
a112847b | 185 | #define EXT2_FLAG_JOURNAL_DEV_OK 0x1000 |
a78926ef | 186 | #define EXT2_FLAG_IMAGE_FILE 0x2000 |
39c47ce6 | 187 | #define EXT2_FLAG_EXCLUSIVE 0x4000 |
3839e657 | 188 | |
7f88b043 TT |
189 | /* |
190 | * Special flag in the ext2 inode i_flag field that means that this is | |
191 | * a new inode. (So that ext2_write_inode() can clear extra fields.) | |
192 | */ | |
193 | #define EXT2_NEW_INODE_FL 0x80000000 | |
194 | ||
4e246704 TT |
195 | /* |
196 | * Flags for mkjournal | |
197 | * | |
198 | * EXT2_MKJOURNAL_V1_SUPER Make a (deprecated) V1 journal superblock | |
199 | */ | |
200 | #define EXT2_MKJOURNAL_V1_SUPER 0x0000001 | |
201 | ||
3839e657 | 202 | struct struct_ext2_filsys { |
4cbe8af4 | 203 | errcode_t magic; |
3839e657 TT |
204 | io_channel io; |
205 | int flags; | |
206 | char * device_name; | |
207 | struct ext2_super_block * super; | |
54434927 | 208 | unsigned int blocksize; |
3839e657 | 209 | int fragsize; |
2eb374c9 | 210 | dgrp_t group_desc_count; |
3839e657 TT |
211 | unsigned long desc_blocks; |
212 | struct ext2_group_desc * group_desc; | |
213 | int inode_blocks_per_group; | |
f3db3566 TT |
214 | ext2fs_inode_bitmap inode_map; |
215 | ext2fs_block_bitmap block_map; | |
31dbecd4 TT |
216 | errcode_t (*get_blocks)(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks); |
217 | errcode_t (*check_directory)(ext2_filsys fs, ext2_ino_t ino); | |
3839e657 | 218 | errcode_t (*write_bitmaps)(ext2_filsys fs); |
31dbecd4 | 219 | errcode_t (*read_inode)(ext2_filsys fs, ext2_ino_t ino, |
1e3472c5 | 220 | struct ext2_inode *inode); |
31dbecd4 | 221 | errcode_t (*write_inode)(ext2_filsys fs, ext2_ino_t ino, |
1e3472c5 | 222 | struct ext2_inode *inode); |
b7a00563 | 223 | ext2_badblocks_list badblocks; |
19c78dc0 | 224 | ext2_dblist dblist; |
a29f4d30 | 225 | __u32 stride; /* for mke2fs */ |
c180ac86 | 226 | struct ext2_super_block * orig_super; |
a78926ef | 227 | struct ext2_image_hdr * image_header; |
6a525069 | 228 | __u32 umask; |
9b9a780f | 229 | time_t now; |
19c78dc0 TT |
230 | /* |
231 | * Reserved for future expansion | |
232 | */ | |
32138187 | 233 | __u32 reserved[7]; |
3839e657 TT |
234 | |
235 | /* | |
a29f4d30 | 236 | * Reserved for the use of the calling application. |
3839e657 | 237 | */ |
b5abe6fa | 238 | void * priv_data; |
a29f4d30 TT |
239 | |
240 | /* | |
241 | * Inode cache | |
242 | */ | |
243 | struct ext2_inode_cache *icache; | |
1ad54a94 | 244 | io_channel image_io; |
3839e657 TT |
245 | }; |
246 | ||
5953b9de TT |
247 | #if EXT2_FLAT_INCLUDES |
248 | #include "e2_bitops.h" | |
249 | #else | |
7c2d2569 | 250 | #include <ext2fs/bitops.h> |
5953b9de | 251 | #endif |
d40259fd | 252 | |
3839e657 TT |
253 | /* |
254 | * Return flags for the block iterator functions | |
255 | */ | |
256 | #define BLOCK_CHANGED 1 | |
257 | #define BLOCK_ABORT 2 | |
258 | #define BLOCK_ERROR 4 | |
259 | ||
260 | /* | |
261 | * Block interate flags | |
50e1e10f TT |
262 | * |
263 | * BLOCK_FLAG_APPEND, or BLOCK_FLAG_HOLE, indicates that the interator | |
264 | * function should be called on blocks where the block number is zero. | |
265 | * This is used by ext2fs_expand_dir() to be able to add a new block | |
266 | * to an inode. It can also be used for programs that want to be able | |
267 | * to deal with files that contain "holes". | |
268 | * | |
7447921d TT |
269 | * BLOCK_FLAG_DEPTH_TRAVERSE indicates that the iterator function for |
270 | * the indirect, doubly indirect, etc. blocks should be called after | |
271 | * all of the blocks containined in the indirect blocks are processed. | |
50e1e10f TT |
272 | * This is useful if you are going to be deallocating blocks from an |
273 | * inode. | |
1e3472c5 TT |
274 | * |
275 | * BLOCK_FLAG_DATA_ONLY indicates that the iterator function should be | |
276 | * called for data blocks only. | |
674a4ee1 TT |
277 | * |
278 | * BLOCK_FLAG_NO_LARGE is for internal use only. It informs | |
36a43d67 | 279 | * ext2fs_block_iterate2 that large files won't be accepted. |
3839e657 TT |
280 | */ |
281 | #define BLOCK_FLAG_APPEND 1 | |
50e1e10f | 282 | #define BLOCK_FLAG_HOLE 1 |
3839e657 | 283 | #define BLOCK_FLAG_DEPTH_TRAVERSE 2 |
1e3472c5 TT |
284 | #define BLOCK_FLAG_DATA_ONLY 4 |
285 | ||
674a4ee1 TT |
286 | #define BLOCK_FLAG_NO_LARGE 0x1000 |
287 | ||
1e3472c5 TT |
288 | /* |
289 | * Magic "block count" return values for the block iterator function. | |
290 | */ | |
291 | #define BLOCK_COUNT_IND (-1) | |
292 | #define BLOCK_COUNT_DIND (-2) | |
293 | #define BLOCK_COUNT_TIND (-3) | |
294 | #define BLOCK_COUNT_TRANSLATOR (-4) | |
3839e657 | 295 | |
4a31c48b | 296 | #if 0 |
1e1da29f TT |
297 | /* |
298 | * Flags for ext2fs_move_blocks | |
299 | */ | |
300 | #define EXT2_BMOVE_GET_DBLIST 0x0001 | |
36f21439 | 301 | #define EXT2_BMOVE_DEBUG 0x0002 |
4a31c48b | 302 | #endif |
1e1da29f | 303 | |
f9190c8a TT |
304 | /* |
305 | * Flags for directory block reading and writing functions | |
306 | */ | |
307 | #define EXT2_DIRBLOCK_V2_STRUCT 0x0001 | |
308 | ||
3839e657 TT |
309 | /* |
310 | * Return flags for the directory iterator functions | |
311 | */ | |
312 | #define DIRENT_CHANGED 1 | |
313 | #define DIRENT_ABORT 2 | |
314 | #define DIRENT_ERROR 3 | |
315 | ||
316 | /* | |
317 | * Directory iterator flags | |
318 | */ | |
319 | ||
320 | #define DIRENT_FLAG_INCLUDE_EMPTY 1 | |
8bd0c959 | 321 | #define DIRENT_FLAG_INCLUDE_REMOVED 2 |
19c78dc0 TT |
322 | |
323 | #define DIRENT_DOT_FILE 1 | |
324 | #define DIRENT_DOT_DOT_FILE 2 | |
325 | #define DIRENT_OTHER_FILE 3 | |
8bd0c959 | 326 | #define DIRENT_DELETED_FILE 4 |
19c78dc0 | 327 | |
3839e657 TT |
328 | /* |
329 | * Inode scan definitions | |
330 | */ | |
f3db3566 TT |
331 | typedef struct ext2_struct_inode_scan *ext2_inode_scan; |
332 | ||
19c78dc0 TT |
333 | /* |
334 | * ext2fs_scan flags | |
335 | */ | |
336 | #define EXT2_SF_CHK_BADBLOCKS 0x0001 | |
337 | #define EXT2_SF_BAD_INODE_BLK 0x0002 | |
338 | #define EXT2_SF_BAD_EXTRA_BYTES 0x0004 | |
339 | #define EXT2_SF_SKIP_MISSING_ITABLE 0x0008 | |
f5fa2007 | 340 | #define EXT2_SF_DO_LAZY 0x0010 |
3839e657 | 341 | |
50e1e10f TT |
342 | /* |
343 | * ext2fs_check_if_mounted flags | |
344 | */ | |
345 | #define EXT2_MF_MOUNTED 1 | |
346 | #define EXT2_MF_ISROOT 2 | |
19c78dc0 | 347 | #define EXT2_MF_READONLY 4 |
07cefe7a | 348 | #define EXT2_MF_SWAP 8 |
2fa8f37f | 349 | #define EXT2_MF_BUSY 16 |
50e1e10f TT |
350 | |
351 | /* | |
352 | * Ext2/linux mode flags. We define them here so that we don't need | |
353 | * to depend on the OS's sys/stat.h, since we may be compiling on a | |
354 | * non-Linux system. | |
355 | */ | |
356 | #define LINUX_S_IFMT 00170000 | |
357 | #define LINUX_S_IFSOCK 0140000 | |
358 | #define LINUX_S_IFLNK 0120000 | |
359 | #define LINUX_S_IFREG 0100000 | |
360 | #define LINUX_S_IFBLK 0060000 | |
361 | #define LINUX_S_IFDIR 0040000 | |
362 | #define LINUX_S_IFCHR 0020000 | |
363 | #define LINUX_S_IFIFO 0010000 | |
364 | #define LINUX_S_ISUID 0004000 | |
365 | #define LINUX_S_ISGID 0002000 | |
366 | #define LINUX_S_ISVTX 0001000 | |
367 | ||
1e3472c5 TT |
368 | #define LINUX_S_IRWXU 00700 |
369 | #define LINUX_S_IRUSR 00400 | |
370 | #define LINUX_S_IWUSR 00200 | |
371 | #define LINUX_S_IXUSR 00100 | |
372 | ||
373 | #define LINUX_S_IRWXG 00070 | |
374 | #define LINUX_S_IRGRP 00040 | |
375 | #define LINUX_S_IWGRP 00020 | |
376 | #define LINUX_S_IXGRP 00010 | |
377 | ||
378 | #define LINUX_S_IRWXO 00007 | |
379 | #define LINUX_S_IROTH 00004 | |
380 | #define LINUX_S_IWOTH 00002 | |
381 | #define LINUX_S_IXOTH 00001 | |
382 | ||
50e1e10f TT |
383 | #define LINUX_S_ISLNK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFLNK) |
384 | #define LINUX_S_ISREG(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFREG) | |
385 | #define LINUX_S_ISDIR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFDIR) | |
386 | #define LINUX_S_ISCHR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFCHR) | |
387 | #define LINUX_S_ISBLK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFBLK) | |
388 | #define LINUX_S_ISFIFO(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFIFO) | |
389 | #define LINUX_S_ISSOCK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFSOCK) | |
390 | ||
819157db TT |
391 | /* |
392 | * ext2 size of an inode | |
393 | */ | |
394 | #define EXT2_I_SIZE(i) ((i)->i_size | ((__u64) (i)->i_size_high << 32)) | |
395 | ||
19c78dc0 TT |
396 | /* |
397 | * ext2_icount_t abstraction | |
398 | */ | |
399 | #define EXT2_ICOUNT_OPT_INCREMENT 0x01 | |
400 | ||
401 | typedef struct ext2_icount *ext2_icount_t; | |
402 | ||
30fab293 TT |
403 | /* |
404 | * Flags for ext2fs_bmap | |
405 | */ | |
1d667534 TT |
406 | #define BMAP_ALLOC 0x0001 |
407 | #define BMAP_SET 0x0002 | |
30fab293 | 408 | |
72ed1264 TT |
409 | /* |
410 | * Flags for imager.c functions | |
411 | */ | |
412 | #define IMAGER_FLAG_INODEMAP 1 | |
413 | #define IMAGER_FLAG_SPARSEWRITE 2 | |
414 | ||
f3db3566 TT |
415 | /* |
416 | * For checking structure magic numbers... | |
417 | */ | |
3839e657 | 418 | |
f3db3566 TT |
419 | #define EXT2_CHECK_MAGIC(struct, code) \ |
420 | if ((struct)->magic != (code)) return (code) | |
1e3472c5 TT |
421 | |
422 | ||
423 | /* | |
e5b38a5f | 424 | * For ext2 compression support |
1e3472c5 | 425 | */ |
5a63dd28 TT |
426 | #define EXT2FS_COMPRESSED_BLKADDR ((blk_t) 0xffffffff) |
427 | #define HOLE_BLKADDR(_b) ((_b) == 0 || (_b) == EXT2FS_COMPRESSED_BLKADDR) | |
428 | ||
521e3685 | 429 | /* |
426d734f | 430 | * Features supported by this version of the library |
521e3685 | 431 | */ |
3a5f8eaa TT |
432 | #define EXT2_LIB_FEATURE_COMPAT_SUPP (EXT2_FEATURE_COMPAT_DIR_PREALLOC|\ |
433 | EXT2_FEATURE_COMPAT_IMAGIC_INODES|\ | |
342d847d | 434 | EXT3_FEATURE_COMPAT_HAS_JOURNAL|\ |
d323f8fb | 435 | EXT2_FEATURE_COMPAT_RESIZE_INODE|\ |
52783e0c | 436 | EXT2_FEATURE_COMPAT_DIR_INDEX|\ |
f5fa2007 | 437 | EXT2_FEATURE_COMPAT_LAZY_BG|\ |
342d847d | 438 | EXT2_FEATURE_COMPAT_EXT_ATTR) |
2fe1efe2 | 439 | |
5a63dd28 TT |
440 | /* This #ifdef is temporary until compression is fully supported */ |
441 | #ifdef ENABLE_COMPRESSION | |
e589f678 TT |
442 | #ifndef I_KNOW_THAT_COMPRESSION_IS_EXPERIMENTAL |
443 | /* If the below warning bugs you, then have | |
444 | `CPPFLAGS=-DI_KNOW_THAT_COMPRESSION_IS_EXPERIMENTAL' in your | |
445 | environment at configure time. */ | |
cdaf1fa7 | 446 | #warning "Compression support is experimental" |
e589f678 | 447 | #endif |
5a63dd28 | 448 | #define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\ |
ab146766 | 449 | EXT2_FEATURE_INCOMPAT_COMPRESSION|\ |
a112847b | 450 | EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\ |
c046ac7f | 451 | EXT2_FEATURE_INCOMPAT_META_BG|\ |
ab146766 | 452 | EXT3_FEATURE_INCOMPAT_RECOVER) |
5a63dd28 | 453 | #else |
ab146766 | 454 | #define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\ |
a112847b | 455 | EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\ |
c046ac7f | 456 | EXT2_FEATURE_INCOMPAT_META_BG|\ |
ab146766 | 457 | EXT3_FEATURE_INCOMPAT_RECOVER) |
5a63dd28 | 458 | #endif |
674a4ee1 TT |
459 | #define EXT2_LIB_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|\ |
460 | EXT2_FEATURE_RO_COMPAT_LARGE_FILE) | |
3839e657 TT |
461 | /* |
462 | * function prototypes | |
463 | */ | |
464 | ||
465 | /* alloc.c */ | |
31dbecd4 TT |
466 | extern errcode_t ext2fs_new_inode(ext2_filsys fs, ext2_ino_t dir, int mode, |
467 | ext2fs_inode_bitmap map, ext2_ino_t *ret); | |
3839e657 | 468 | extern errcode_t ext2fs_new_block(ext2_filsys fs, blk_t goal, |
f3db3566 | 469 | ext2fs_block_bitmap map, blk_t *ret); |
3839e657 | 470 | extern errcode_t ext2fs_get_free_blocks(ext2_filsys fs, blk_t start, |
f3db3566 TT |
471 | blk_t finish, int num, |
472 | ext2fs_block_bitmap map, | |
3839e657 | 473 | blk_t *ret); |
30fab293 TT |
474 | extern errcode_t ext2fs_alloc_block(ext2_filsys fs, blk_t goal, |
475 | char *block_buf, blk_t *ret); | |
3839e657 | 476 | |
ef344e13 TT |
477 | /* alloc_sb.c */ |
478 | extern int ext2fs_reserve_super_and_bgd(ext2_filsys fs, | |
479 | dgrp_t group, | |
480 | ext2fs_block_bitmap bmap); | |
481 | ||
8bd0c959 TT |
482 | /* alloc_stats.c */ |
483 | void ext2fs_inode_alloc_stats(ext2_filsys fs, ext2_ino_t ino, int inuse); | |
7f961d42 TT |
484 | void ext2fs_inode_alloc_stats2(ext2_filsys fs, ext2_ino_t ino, |
485 | int inuse, int isdir); | |
8bd0c959 TT |
486 | void ext2fs_block_alloc_stats(ext2_filsys fs, blk_t blk, int inuse); |
487 | ||
1e1da29f TT |
488 | /* alloc_tables.c */ |
489 | extern errcode_t ext2fs_allocate_tables(ext2_filsys fs); | |
2eb374c9 | 490 | extern errcode_t ext2fs_allocate_group_table(ext2_filsys fs, dgrp_t group, |
1e1da29f | 491 | ext2fs_block_bitmap bmap); |
19c78dc0 | 492 | |
3839e657 | 493 | /* badblocks.c */ |
b7a00563 TT |
494 | extern errcode_t ext2fs_u32_list_create(ext2_u32_list *ret, int size); |
495 | extern errcode_t ext2fs_u32_list_add(ext2_u32_list bb, __u32 blk); | |
54434927 | 496 | extern int ext2fs_u32_list_find(ext2_u32_list bb, __u32 blk); |
b7a00563 TT |
497 | extern int ext2fs_u32_list_test(ext2_u32_list bb, blk_t blk); |
498 | extern errcode_t ext2fs_u32_list_iterate_begin(ext2_u32_list bb, | |
499 | ext2_u32_iterate *ret); | |
500 | extern int ext2fs_u32_list_iterate(ext2_u32_iterate iter, blk_t *blk); | |
501 | extern void ext2fs_u32_list_iterate_end(ext2_u32_iterate iter); | |
502 | extern errcode_t ext2fs_u32_copy(ext2_u32_list src, ext2_u32_list *dest); | |
503 | extern int ext2fs_u32_list_equal(ext2_u32_list bb1, ext2_u32_list bb2); | |
504 | ||
19c78dc0 TT |
505 | extern errcode_t ext2fs_badblocks_list_create(ext2_badblocks_list *ret, |
506 | int size); | |
19c78dc0 TT |
507 | extern errcode_t ext2fs_badblocks_list_add(ext2_badblocks_list bb, |
508 | blk_t blk); | |
509 | extern int ext2fs_badblocks_list_test(ext2_badblocks_list bb, | |
510 | blk_t blk); | |
7d7bdd57 TT |
511 | extern int ext2fs_u32_list_del(ext2_u32_list bb, __u32 blk); |
512 | extern void ext2fs_badblocks_list_del(ext2_u32_list bb, __u32 blk); | |
19c78dc0 TT |
513 | extern errcode_t |
514 | ext2fs_badblocks_list_iterate_begin(ext2_badblocks_list bb, | |
515 | ext2_badblocks_iterate *ret); | |
516 | extern int ext2fs_badblocks_list_iterate(ext2_badblocks_iterate iter, | |
517 | blk_t *blk); | |
518 | extern void ext2fs_badblocks_list_iterate_end(ext2_badblocks_iterate iter); | |
a29f4d30 TT |
519 | extern errcode_t ext2fs_badblocks_copy(ext2_badblocks_list src, |
520 | ext2_badblocks_list *dest); | |
57dca854 TT |
521 | extern int ext2fs_badblocks_equal(ext2_badblocks_list bb1, |
522 | ext2_badblocks_list bb2); | |
220c0040 | 523 | extern int ext2fs_u32_list_count(ext2_u32_list bb); |
19c78dc0 TT |
524 | |
525 | /* bb_compat */ | |
3839e657 | 526 | extern errcode_t badblocks_list_create(badblocks_list *ret, int size); |
3839e657 TT |
527 | extern errcode_t badblocks_list_add(badblocks_list bb, blk_t blk); |
528 | extern int badblocks_list_test(badblocks_list bb, blk_t blk); | |
529 | extern errcode_t badblocks_list_iterate_begin(badblocks_list bb, | |
530 | badblocks_iterate *ret); | |
531 | extern int badblocks_list_iterate(badblocks_iterate iter, blk_t *blk); | |
532 | extern void badblocks_list_iterate_end(badblocks_iterate iter); | |
a29f4d30 | 533 | extern void badblocks_list_free(badblocks_list bb); |
3839e657 TT |
534 | |
535 | /* bb_inode.c */ | |
536 | extern errcode_t ext2fs_update_bb_inode(ext2_filsys fs, | |
19c78dc0 | 537 | ext2_badblocks_list bb_list); |
3839e657 TT |
538 | |
539 | /* bitmaps.c */ | |
540 | extern errcode_t ext2fs_write_inode_bitmap(ext2_filsys fs); | |
541 | extern errcode_t ext2fs_write_block_bitmap (ext2_filsys fs); | |
542 | extern errcode_t ext2fs_read_inode_bitmap (ext2_filsys fs); | |
543 | extern errcode_t ext2fs_read_block_bitmap(ext2_filsys fs); | |
1e3472c5 TT |
544 | extern errcode_t ext2fs_allocate_generic_bitmap(__u32 start, |
545 | __u32 end, | |
546 | __u32 real_end, | |
547 | const char *descr, | |
548 | ext2fs_generic_bitmap *ret); | |
50e1e10f TT |
549 | extern errcode_t ext2fs_allocate_block_bitmap(ext2_filsys fs, |
550 | const char *descr, | |
551 | ext2fs_block_bitmap *ret); | |
552 | extern errcode_t ext2fs_allocate_inode_bitmap(ext2_filsys fs, | |
553 | const char *descr, | |
554 | ext2fs_inode_bitmap *ret); | |
555 | extern errcode_t ext2fs_fudge_inode_bitmap_end(ext2fs_inode_bitmap bitmap, | |
31dbecd4 | 556 | ext2_ino_t end, ext2_ino_t *oend); |
50e1e10f TT |
557 | extern errcode_t ext2fs_fudge_block_bitmap_end(ext2fs_block_bitmap bitmap, |
558 | blk_t end, blk_t *oend); | |
559 | extern void ext2fs_clear_inode_bitmap(ext2fs_inode_bitmap bitmap); | |
560 | extern void ext2fs_clear_block_bitmap(ext2fs_block_bitmap bitmap); | |
3839e657 TT |
561 | extern errcode_t ext2fs_read_bitmaps(ext2_filsys fs); |
562 | extern errcode_t ext2fs_write_bitmaps(ext2_filsys fs); | |
563 | ||
564 | /* block.c */ | |
565 | extern errcode_t ext2fs_block_iterate(ext2_filsys fs, | |
31dbecd4 | 566 | ext2_ino_t ino, |
3839e657 TT |
567 | int flags, |
568 | char *block_buf, | |
569 | int (*func)(ext2_filsys fs, | |
570 | blk_t *blocknr, | |
571 | int blockcnt, | |
b5abe6fa TT |
572 | void *priv_data), |
573 | void *priv_data); | |
19c78dc0 | 574 | errcode_t ext2fs_block_iterate2(ext2_filsys fs, |
31dbecd4 | 575 | ext2_ino_t ino, |
674a4ee1 TT |
576 | int flags, |
577 | char *block_buf, | |
578 | int (*func)(ext2_filsys fs, | |
579 | blk_t *blocknr, | |
03673dbb | 580 | e2_blkcnt_t blockcnt, |
674a4ee1 TT |
581 | blk_t ref_blk, |
582 | int ref_offset, | |
583 | void *priv_data), | |
584 | void *priv_data); | |
19c78dc0 | 585 | |
30fab293 | 586 | /* bmap.c */ |
31dbecd4 | 587 | extern errcode_t ext2fs_bmap(ext2_filsys fs, ext2_ino_t ino, |
30fab293 TT |
588 | struct ext2_inode *inode, |
589 | char *block_buf, int bmap_flags, | |
590 | blk_t block, blk_t *phys_blk); | |
591 | ||
592 | ||
4a31c48b | 593 | #if 0 |
1e1da29f TT |
594 | /* bmove.c */ |
595 | extern errcode_t ext2fs_move_blocks(ext2_filsys fs, | |
596 | ext2fs_block_bitmap reserve, | |
9941fb73 | 597 | ext2fs_block_bitmap alloc_map, |
1e1da29f | 598 | int flags); |
4a31c48b | 599 | #endif |
1e1da29f | 600 | |
f3db3566 TT |
601 | /* check_desc.c */ |
602 | extern errcode_t ext2fs_check_desc(ext2_filsys fs); | |
603 | ||
3839e657 TT |
604 | /* closefs.c */ |
605 | extern errcode_t ext2fs_close(ext2_filsys fs); | |
606 | extern errcode_t ext2fs_flush(ext2_filsys fs); | |
1b4cd9c7 | 607 | extern int ext2fs_bg_has_super(ext2_filsys fs, int group_block); |
ef344e13 TT |
608 | extern int ext2fs_super_and_bgd_loc(ext2_filsys fs, |
609 | dgrp_t group, | |
610 | blk_t *ret_super_blk, | |
611 | blk_t *ret_old_desc_blk, | |
612 | blk_t *ret_new_desc_blk, | |
613 | int *ret_meta_bg); | |
1b4cd9c7 | 614 | extern void ext2fs_update_dynamic_rev(ext2_filsys fs); |
3839e657 | 615 | |
50e1e10f TT |
616 | /* cmp_bitmaps.c */ |
617 | extern errcode_t ext2fs_compare_block_bitmap(ext2fs_block_bitmap bm1, | |
618 | ext2fs_block_bitmap bm2); | |
619 | extern errcode_t ext2fs_compare_inode_bitmap(ext2fs_inode_bitmap bm1, | |
620 | ext2fs_inode_bitmap bm2); | |
621 | ||
19c78dc0 TT |
622 | /* dblist.c */ |
623 | ||
31dbecd4 | 624 | extern errcode_t ext2fs_get_num_dirs(ext2_filsys fs, ext2_ino_t *ret_num_dirs); |
a29f4d30 | 625 | extern errcode_t ext2fs_init_dblist(ext2_filsys fs, ext2_dblist *ret_dblist); |
31dbecd4 | 626 | extern errcode_t ext2fs_add_dir_block(ext2_dblist dblist, ext2_ino_t ino, |
a29f4d30 | 627 | blk_t blk, int blockcnt); |
ea1959f0 TT |
628 | extern void ext2fs_dblist_sort(ext2_dblist dblist, |
629 | EXT2_QSORT_TYPE (*sortfunc)(const void *, | |
630 | const void *)); | |
a29f4d30 TT |
631 | extern errcode_t ext2fs_dblist_iterate(ext2_dblist dblist, |
632 | int (*func)(ext2_filsys fs, struct ext2_db_entry *db_info, | |
b5abe6fa TT |
633 | void *priv_data), |
634 | void *priv_data); | |
31dbecd4 | 635 | extern errcode_t ext2fs_set_dir_block(ext2_dblist dblist, ext2_ino_t ino, |
a29f4d30 TT |
636 | blk_t blk, int blockcnt); |
637 | extern errcode_t ext2fs_copy_dblist(ext2_dblist src, | |
638 | ext2_dblist *dest); | |
549860c5 | 639 | extern int ext2fs_dblist_count(ext2_dblist dblist); |
19c78dc0 TT |
640 | |
641 | /* dblist_dir.c */ | |
642 | extern errcode_t | |
643 | ext2fs_dblist_dir_iterate(ext2_dblist dblist, | |
644 | int flags, | |
645 | char *block_buf, | |
31dbecd4 | 646 | int (*func)(ext2_ino_t dir, |
19c78dc0 TT |
647 | int entry, |
648 | struct ext2_dir_entry *dirent, | |
649 | int offset, | |
650 | int blocksize, | |
651 | char *buf, | |
b5abe6fa TT |
652 | void *priv_data), |
653 | void *priv_data); | |
50e1e10f TT |
654 | |
655 | /* dirblock.c */ | |
656 | extern errcode_t ext2fs_read_dir_block(ext2_filsys fs, blk_t block, | |
657 | void *buf); | |
f9190c8a TT |
658 | extern errcode_t ext2fs_read_dir_block2(ext2_filsys fs, blk_t block, |
659 | void *buf, int flags); | |
50e1e10f TT |
660 | extern errcode_t ext2fs_write_dir_block(ext2_filsys fs, blk_t block, |
661 | void *buf); | |
f9190c8a TT |
662 | extern errcode_t ext2fs_write_dir_block2(ext2_filsys fs, blk_t block, |
663 | void *buf, int flags); | |
50e1e10f | 664 | |
52783e0c TT |
665 | /* dirhash.c */ |
666 | extern errcode_t ext2fs_dirhash(int version, const char *name, int len, | |
b33278c4 | 667 | const __u32 *seed, |
503f9e7f TT |
668 | ext2_dirhash_t *ret_hash, |
669 | ext2_dirhash_t *ret_minor_hash); | |
52783e0c TT |
670 | |
671 | ||
19c78dc0 TT |
672 | /* dir_iterate.c */ |
673 | extern errcode_t ext2fs_dir_iterate(ext2_filsys fs, | |
31dbecd4 | 674 | ext2_ino_t dir, |
19c78dc0 TT |
675 | int flags, |
676 | char *block_buf, | |
677 | int (*func)(struct ext2_dir_entry *dirent, | |
678 | int offset, | |
679 | int blocksize, | |
680 | char *buf, | |
b5abe6fa TT |
681 | void *priv_data), |
682 | void *priv_data); | |
8bd0c959 TT |
683 | extern errcode_t ext2fs_dir_iterate2(ext2_filsys fs, |
684 | ext2_ino_t dir, | |
685 | int flags, | |
686 | char *block_buf, | |
687 | int (*func)(ext2_ino_t dir, | |
688 | int entry, | |
689 | struct ext2_dir_entry *dirent, | |
690 | int offset, | |
691 | int blocksize, | |
692 | char *buf, | |
693 | void *priv_data), | |
694 | void *priv_data); | |
19c78dc0 | 695 | |
a29f4d30 TT |
696 | /* dupfs.c */ |
697 | extern errcode_t ext2fs_dup_handle(ext2_filsys src, ext2_filsys *dest); | |
19c78dc0 | 698 | |
3839e657 | 699 | /* expanddir.c */ |
31dbecd4 | 700 | extern errcode_t ext2fs_expand_dir(ext2_filsys fs, ext2_ino_t dir); |
3839e657 | 701 | |
342d847d | 702 | /* ext_attr.c */ |
342d847d | 703 | extern errcode_t ext2fs_read_ext_attr(ext2_filsys fs, blk_t block, void *buf); |
0684a4f3 TT |
704 | extern errcode_t ext2fs_write_ext_attr(ext2_filsys fs, blk_t block, |
705 | void *buf); | |
706 | extern errcode_t ext2fs_adjust_ea_refcount(ext2_filsys fs, blk_t blk, | |
707 | char *block_buf, | |
708 | int adjust, __u32 *newcount); | |
709 | ||
30fab293 | 710 | /* fileio.c */ |
a435ec34 TT |
711 | extern errcode_t ext2fs_file_open2(ext2_filsys fs, ext2_ino_t ino, |
712 | struct ext2_inode *inode, | |
713 | int flags, ext2_file_t *ret); | |
31dbecd4 | 714 | extern errcode_t ext2fs_file_open(ext2_filsys fs, ext2_ino_t ino, |
30fab293 | 715 | int flags, ext2_file_t *ret); |
79a90bda | 716 | extern ext2_filsys ext2fs_file_get_fs(ext2_file_t file); |
30fab293 | 717 | extern errcode_t ext2fs_file_close(ext2_file_t file); |
f12e285f | 718 | extern errcode_t ext2fs_file_flush(ext2_file_t file); |
30fab293 | 719 | extern errcode_t ext2fs_file_read(ext2_file_t file, void *buf, |
79a90bda | 720 | unsigned int wanted, unsigned int *got); |
f12e285f | 721 | extern errcode_t ext2fs_file_write(ext2_file_t file, const void *buf, |
79a90bda | 722 | unsigned int nbytes, unsigned int *written); |
819157db TT |
723 | extern errcode_t ext2fs_file_llseek(ext2_file_t file, __u64 offset, |
724 | int whence, __u64 *ret_pos); | |
674a4ee1 TT |
725 | extern errcode_t ext2fs_file_lseek(ext2_file_t file, ext2_off_t offset, |
726 | int whence, ext2_off_t *ret_pos); | |
819157db | 727 | errcode_t ext2fs_file_get_lsize(ext2_file_t file, __u64 *ret_size); |
79a90bda TT |
728 | extern ext2_off_t ext2fs_file_get_size(ext2_file_t file); |
729 | extern errcode_t ext2fs_file_set_size(ext2_file_t file, ext2_off_t size); | |
30fab293 | 730 | |
de23aa1d TT |
731 | /* finddev.c */ |
732 | extern char *ext2fs_find_block_device(dev_t device); | |
733 | ||
4d0f3e17 TT |
734 | /* flushb.c */ |
735 | extern errcode_t ext2fs_sync_device(int fd, int flushb); | |
736 | ||
3839e657 TT |
737 | /* freefs.c */ |
738 | extern void ext2fs_free(ext2_filsys fs); | |
1e3472c5 | 739 | extern void ext2fs_free_generic_bitmap(ext2fs_inode_bitmap bitmap); |
50e1e10f TT |
740 | extern void ext2fs_free_block_bitmap(ext2fs_block_bitmap bitmap); |
741 | extern void ext2fs_free_inode_bitmap(ext2fs_inode_bitmap bitmap); | |
a29f4d30 | 742 | extern void ext2fs_free_dblist(ext2_dblist dblist); |
b7a00563 TT |
743 | extern void ext2fs_badblocks_list_free(ext2_badblocks_list bb); |
744 | extern void ext2fs_u32_list_free(ext2_u32_list bb); | |
50e1e10f TT |
745 | |
746 | /* getsize.c */ | |
747 | extern errcode_t ext2fs_get_device_size(const char *file, int blocksize, | |
748 | blk_t *retblocks); | |
3839e657 | 749 | |
93d5c387 TT |
750 | /* getsectsize.c */ |
751 | errcode_t ext2fs_get_device_sectsize(const char *file, int *sectsize); | |
752 | ||
72ed1264 TT |
753 | /* imager.c */ |
754 | extern errcode_t ext2fs_image_inode_write(ext2_filsys fs, int fd, int flags); | |
755 | extern errcode_t ext2fs_image_inode_read(ext2_filsys fs, int fd, int flags); | |
756 | extern errcode_t ext2fs_image_super_write(ext2_filsys fs, int fd, int flags); | |
757 | extern errcode_t ext2fs_image_super_read(ext2_filsys fs, int fd, int flags); | |
758 | extern errcode_t ext2fs_image_bitmap_write(ext2_filsys fs, int fd, int flags); | |
759 | extern errcode_t ext2fs_image_bitmap_read(ext2_filsys fs, int fd, int flags); | |
760 | ||
dc8ce346 TT |
761 | /* ind_block.c */ |
762 | errcode_t ext2fs_read_ind_block(ext2_filsys fs, blk_t blk, void *buf); | |
763 | errcode_t ext2fs_write_ind_block(ext2_filsys fs, blk_t blk, void *buf); | |
764 | ||
3839e657 TT |
765 | /* initialize.c */ |
766 | extern errcode_t ext2fs_initialize(const char *name, int flags, | |
767 | struct ext2_super_block *param, | |
768 | io_manager manager, ext2_filsys *ret_fs); | |
769 | ||
f12e285f TT |
770 | /* icount.c */ |
771 | extern void ext2fs_free_icount(ext2_icount_t icount); | |
54434927 TT |
772 | extern errcode_t ext2fs_create_icount2(ext2_filsys fs, int flags, |
773 | unsigned int size, | |
f12e285f | 774 | ext2_icount_t hint, ext2_icount_t *ret); |
54434927 TT |
775 | extern errcode_t ext2fs_create_icount(ext2_filsys fs, int flags, |
776 | unsigned int size, | |
f12e285f TT |
777 | ext2_icount_t *ret); |
778 | extern errcode_t ext2fs_icount_fetch(ext2_icount_t icount, ext2_ino_t ino, | |
779 | __u16 *ret); | |
780 | extern errcode_t ext2fs_icount_increment(ext2_icount_t icount, ext2_ino_t ino, | |
781 | __u16 *ret); | |
782 | extern errcode_t ext2fs_icount_decrement(ext2_icount_t icount, ext2_ino_t ino, | |
783 | __u16 *ret); | |
784 | extern errcode_t ext2fs_icount_store(ext2_icount_t icount, ext2_ino_t ino, | |
785 | __u16 count); | |
786 | extern ext2_ino_t ext2fs_get_icount_size(ext2_icount_t icount); | |
787 | errcode_t ext2fs_icount_validate(ext2_icount_t icount, FILE *); | |
788 | ||
3839e657 | 789 | /* inode.c */ |
72ed1264 | 790 | extern errcode_t ext2fs_flush_icache(ext2_filsys fs); |
7331196a TT |
791 | extern errcode_t ext2fs_get_next_inode_full(ext2_inode_scan scan, |
792 | ext2_ino_t *ino, | |
793 | struct ext2_inode *inode, | |
794 | int bufsize); | |
3839e657 TT |
795 | extern errcode_t ext2fs_open_inode_scan(ext2_filsys fs, int buffer_blocks, |
796 | ext2_inode_scan *ret_scan); | |
797 | extern void ext2fs_close_inode_scan(ext2_inode_scan scan); | |
31dbecd4 | 798 | extern errcode_t ext2fs_get_next_inode(ext2_inode_scan scan, ext2_ino_t *ino, |
3839e657 | 799 | struct ext2_inode *inode); |
19c78dc0 TT |
800 | extern errcode_t ext2fs_inode_scan_goto_blockgroup(ext2_inode_scan scan, |
801 | int group); | |
802 | extern void ext2fs_set_inode_callback | |
803 | (ext2_inode_scan scan, | |
804 | errcode_t (*done_group)(ext2_filsys fs, | |
805 | ext2_inode_scan scan, | |
806 | dgrp_t group, | |
b5abe6fa | 807 | void * priv_data), |
19c78dc0 TT |
808 | void *done_group_data); |
809 | extern int ext2fs_inode_scan_flags(ext2_inode_scan scan, int set_flags, | |
810 | int clear_flags); | |
7331196a TT |
811 | extern errcode_t ext2fs_read_inode_full(ext2_filsys fs, ext2_ino_t ino, |
812 | struct ext2_inode * inode, | |
813 | int bufsize); | |
31dbecd4 | 814 | extern errcode_t ext2fs_read_inode (ext2_filsys fs, ext2_ino_t ino, |
3839e657 | 815 | struct ext2_inode * inode); |
7331196a TT |
816 | extern errcode_t ext2fs_write_inode_full(ext2_filsys fs, ext2_ino_t ino, |
817 | struct ext2_inode * inode, | |
818 | int bufsize); | |
31dbecd4 | 819 | extern errcode_t ext2fs_write_inode(ext2_filsys fs, ext2_ino_t ino, |
3839e657 | 820 | struct ext2_inode * inode); |
030970ed TT |
821 | extern errcode_t ext2fs_write_new_inode(ext2_filsys fs, ext2_ino_t ino, |
822 | struct ext2_inode * inode); | |
31dbecd4 TT |
823 | extern errcode_t ext2fs_get_blocks(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks); |
824 | extern errcode_t ext2fs_check_directory(ext2_filsys fs, ext2_ino_t ino); | |
3839e657 | 825 | |
f12e285f TT |
826 | /* inode_io.c */ |
827 | extern io_manager inode_io_manager; | |
546a1ff1 TT |
828 | extern errcode_t ext2fs_inode_io_intern(ext2_filsys fs, ext2_ino_t ino, |
829 | char **name); | |
a435ec34 TT |
830 | extern errcode_t ext2fs_inode_io_intern2(ext2_filsys fs, ext2_ino_t ino, |
831 | struct ext2_inode *inode, | |
832 | char **name); | |
f12e285f | 833 | |
50e1e10f TT |
834 | /* ismounted.c */ |
835 | extern errcode_t ext2fs_check_if_mounted(const char *file, int *mount_flags); | |
43ec8734 TT |
836 | extern errcode_t ext2fs_check_mount_point(const char *device, int *mount_flags, |
837 | char *mtpt, int mtlen); | |
50e1e10f | 838 | |
3839e657 | 839 | /* namei.c */ |
31dbecd4 TT |
840 | extern errcode_t ext2fs_lookup(ext2_filsys fs, ext2_ino_t dir, const char *name, |
841 | int namelen, char *buf, ext2_ino_t *inode); | |
842 | extern errcode_t ext2fs_namei(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd, | |
843 | const char *name, ext2_ino_t *inode); | |
844 | errcode_t ext2fs_namei_follow(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd, | |
845 | const char *name, ext2_ino_t *inode); | |
846 | extern errcode_t ext2fs_follow_link(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd, | |
847 | ext2_ino_t inode, ext2_ino_t *res_inode); | |
1e3472c5 TT |
848 | |
849 | /* native.c */ | |
850 | int ext2fs_native_flag(void); | |
3839e657 TT |
851 | |
852 | /* newdir.c */ | |
31dbecd4 TT |
853 | extern errcode_t ext2fs_new_dir_block(ext2_filsys fs, ext2_ino_t dir_ino, |
854 | ext2_ino_t parent_ino, char **block); | |
3839e657 TT |
855 | |
856 | /* mkdir.c */ | |
31dbecd4 | 857 | extern errcode_t ext2fs_mkdir(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t inum, |
3839e657 TT |
858 | const char *name); |
859 | ||
d3cd93ca | 860 | /* mkjournal.c */ |
a112847b TT |
861 | extern errcode_t ext2fs_create_journal_superblock(ext2_filsys fs, |
862 | __u32 size, int flags, | |
863 | char **ret_jsb); | |
864 | extern errcode_t ext2fs_add_journal_device(ext2_filsys fs, | |
865 | ext2_filsys journal_dev); | |
31a17b36 TT |
866 | extern errcode_t ext2fs_add_journal_inode(ext2_filsys fs, blk_t size, |
867 | int flags); | |
d3cd93ca | 868 | |
3839e657 TT |
869 | /* openfs.c */ |
870 | extern errcode_t ext2fs_open(const char *name, int flags, int superblock, | |
54434927 | 871 | unsigned int block_size, io_manager manager, |
3839e657 | 872 | ext2_filsys *ret_fs); |
2e8ca9a2 TT |
873 | extern errcode_t ext2fs_open2(const char *name, const char *io_options, |
874 | int flags, int superblock, | |
875 | unsigned int block_size, io_manager manager, | |
876 | ext2_filsys *ret_fs); | |
c046ac7f TT |
877 | extern blk_t ext2fs_descriptor_block_loc(ext2_filsys fs, blk_t group_block, |
878 | dgrp_t i); | |
1ad54a94 TT |
879 | errcode_t ext2fs_get_data_io(ext2_filsys fs, io_channel *old_io); |
880 | errcode_t ext2fs_set_data_io(ext2_filsys fs, io_channel new_io); | |
881 | errcode_t ext2fs_rewrite_to_io(ext2_filsys fs, io_channel new_io); | |
3839e657 TT |
882 | |
883 | /* get_pathname.c */ | |
31dbecd4 | 884 | extern errcode_t ext2fs_get_pathname(ext2_filsys fs, ext2_ino_t dir, ext2_ino_t ino, |
3839e657 TT |
885 | char **name); |
886 | ||
887 | /* link.c */ | |
31dbecd4 TT |
888 | errcode_t ext2fs_link(ext2_filsys fs, ext2_ino_t dir, const char *name, |
889 | ext2_ino_t ino, int flags); | |
890 | errcode_t ext2fs_unlink(ext2_filsys fs, ext2_ino_t dir, const char *name, | |
891 | ext2_ino_t ino, int flags); | |
3839e657 TT |
892 | |
893 | /* read_bb.c */ | |
19c78dc0 TT |
894 | extern errcode_t ext2fs_read_bb_inode(ext2_filsys fs, |
895 | ext2_badblocks_list *bb_list); | |
3839e657 TT |
896 | |
897 | /* read_bb_file.c */ | |
57dca854 TT |
898 | extern errcode_t ext2fs_read_bb_FILE2(ext2_filsys fs, FILE *f, |
899 | ext2_badblocks_list *bb_list, | |
50cd7e06 | 900 | void *priv_data, |
57dca854 TT |
901 | void (*invalid)(ext2_filsys fs, |
902 | blk_t blk, | |
903 | char *badstr, | |
50cd7e06 | 904 | void *priv_data)); |
3839e657 | 905 | extern errcode_t ext2fs_read_bb_FILE(ext2_filsys fs, FILE *f, |
19c78dc0 | 906 | ext2_badblocks_list *bb_list, |
3839e657 TT |
907 | void (*invalid)(ext2_filsys fs, |
908 | blk_t blk)); | |
909 | ||
d323f8fb TT |
910 | /* res_gdt.c */ |
911 | extern errcode_t ext2fs_create_resize_inode(ext2_filsys fs); | |
912 | ||
19c78dc0 TT |
913 | /* rs_bitmap.c */ |
914 | extern errcode_t ext2fs_resize_generic_bitmap(__u32 new_end, | |
915 | __u32 new_real_end, | |
916 | ext2fs_generic_bitmap bmap); | |
917 | extern errcode_t ext2fs_resize_inode_bitmap(__u32 new_end, __u32 new_real_end, | |
918 | ext2fs_inode_bitmap bmap); | |
919 | extern errcode_t ext2fs_resize_block_bitmap(__u32 new_end, __u32 new_real_end, | |
920 | ext2fs_block_bitmap bmap); | |
a29f4d30 TT |
921 | extern errcode_t ext2fs_copy_bitmap(ext2fs_generic_bitmap src, |
922 | ext2fs_generic_bitmap *dest); | |
19c78dc0 | 923 | |
50e1e10f | 924 | /* swapfs.c */ |
7331196a TT |
925 | extern void ext2fs_swap_ext_attr(char *to, char *from, int bufsize, |
926 | int has_header); | |
50e1e10f TT |
927 | extern void ext2fs_swap_super(struct ext2_super_block * super); |
928 | extern void ext2fs_swap_group_desc(struct ext2_group_desc *gdp); | |
7331196a TT |
929 | extern void ext2fs_swap_inode_full(ext2_filsys fs, struct ext2_inode_large *t, |
930 | struct ext2_inode_large *f, int hostorder, | |
931 | int bufsize); | |
1e3472c5 TT |
932 | extern void ext2fs_swap_inode(ext2_filsys fs,struct ext2_inode *t, |
933 | struct ext2_inode *f, int hostorder); | |
934 | ||
19c78dc0 | 935 | /* valid_blk.c */ |
521e3685 TT |
936 | extern int ext2fs_inode_has_valid_blocks(struct ext2_inode *inode); |
937 | ||
938 | /* version.c */ | |
939 | extern int ext2fs_parse_version_string(const char *ver_string); | |
940 | extern int ext2fs_get_library_version(const char **ver_string, | |
941 | const char **date_string); | |
50e1e10f | 942 | |
31dbecd4 TT |
943 | /* write_bb_file.c */ |
944 | extern errcode_t ext2fs_write_bb_FILE(ext2_badblocks_list bb_list, | |
945 | unsigned int flags, | |
946 | FILE *f); | |
947 | ||
948 | ||
3839e657 | 949 | /* inline functions */ |
c4e3d3f3 TT |
950 | extern errcode_t ext2fs_get_mem(unsigned long size, void *ptr); |
951 | extern errcode_t ext2fs_free_mem(void *ptr); | |
76f875da | 952 | extern errcode_t ext2fs_resize_mem(unsigned long old_size, |
c4e3d3f3 | 953 | unsigned long size, void *ptr); |
3839e657 TT |
954 | extern void ext2fs_mark_super_dirty(ext2_filsys fs); |
955 | extern void ext2fs_mark_changed(ext2_filsys fs); | |
956 | extern int ext2fs_test_changed(ext2_filsys fs); | |
957 | extern void ext2fs_mark_valid(ext2_filsys fs); | |
958 | extern void ext2fs_unmark_valid(ext2_filsys fs); | |
959 | extern int ext2fs_test_valid(ext2_filsys fs); | |
960 | extern void ext2fs_mark_ib_dirty(ext2_filsys fs); | |
961 | extern void ext2fs_mark_bb_dirty(ext2_filsys fs); | |
962 | extern int ext2fs_test_ib_dirty(ext2_filsys fs); | |
963 | extern int ext2fs_test_bb_dirty(ext2_filsys fs); | |
964 | extern int ext2fs_group_of_blk(ext2_filsys fs, blk_t blk); | |
31dbecd4 | 965 | extern int ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino); |
abf23439 ES |
966 | extern blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group); |
967 | extern blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group); | |
0684a4f3 TT |
968 | extern blk_t ext2fs_inode_data_blocks(ext2_filsys fs, |
969 | struct ext2_inode *inode); | |
69022e02 | 970 | extern unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b); |
3839e657 TT |
971 | |
972 | /* | |
973 | * The actual inlined functions definitions themselves... | |
974 | * | |
975 | * If NO_INLINE_FUNCS is defined, then we won't try to do inline | |
976 | * functions at all! | |
977 | */ | |
978 | #if (defined(INCLUDE_INLINE_FUNCS) || !defined(NO_INLINE_FUNCS)) | |
979 | #ifdef INCLUDE_INLINE_FUNCS | |
980 | #define _INLINE_ extern | |
981 | #else | |
76f875da | 982 | #ifdef __GNUC__ |
3839e657 | 983 | #define _INLINE_ extern __inline__ |
76f875da TT |
984 | #else /* For Watcom C */ |
985 | #define _INLINE_ extern inline | |
986 | #endif | |
3839e657 TT |
987 | #endif |
988 | ||
7b4e4534 | 989 | #ifndef EXT2_CUSTOM_MEMORY_ROUTINES |
68a7f959 | 990 | #include <string.h> |
7b4e4534 TT |
991 | /* |
992 | * Allocate memory | |
993 | */ | |
c4e3d3f3 | 994 | _INLINE_ errcode_t ext2fs_get_mem(unsigned long size, void *ptr) |
7b4e4534 | 995 | { |
c4e3d3f3 TT |
996 | void **pp = (void **)ptr; |
997 | ||
998 | *pp = malloc(size); | |
999 | if (!*pp) | |
291c9049 | 1000 | return EXT2_ET_NO_MEMORY; |
7b4e4534 TT |
1001 | return 0; |
1002 | } | |
1003 | ||
1004 | /* | |
1005 | * Free memory | |
1006 | */ | |
c4e3d3f3 | 1007 | _INLINE_ errcode_t ext2fs_free_mem(void *ptr) |
7b4e4534 | 1008 | { |
c4e3d3f3 TT |
1009 | void **pp = (void **)ptr; |
1010 | ||
1011 | free(*pp); | |
1012 | *pp = 0; | |
7b4e4534 TT |
1013 | return 0; |
1014 | } | |
1015 | ||
1016 | /* | |
1017 | * Resize memory | |
1018 | */ | |
e47fd841 | 1019 | _INLINE_ errcode_t ext2fs_resize_mem(unsigned long EXT2FS_ATTR((unused)) old_size, |
c4e3d3f3 | 1020 | unsigned long size, void *ptr) |
7b4e4534 TT |
1021 | { |
1022 | void *p; | |
1023 | ||
39c191f5 ST |
1024 | /* Use "memcpy" for pointer assignments here to avoid problems |
1025 | * with C99 strict type aliasing rules. */ | |
1026 | memcpy(&p, ptr, sizeof (p)); | |
1027 | p = realloc(p, size); | |
7b4e4534 | 1028 | if (!p) |
291c9049 | 1029 | return EXT2_ET_NO_MEMORY; |
39c191f5 | 1030 | memcpy(ptr, &p, sizeof (p)); |
7b4e4534 TT |
1031 | return 0; |
1032 | } | |
1033 | #endif /* Custom memory routines */ | |
1034 | ||
3839e657 TT |
1035 | /* |
1036 | * Mark a filesystem superblock as dirty | |
1037 | */ | |
1038 | _INLINE_ void ext2fs_mark_super_dirty(ext2_filsys fs) | |
1039 | { | |
1040 | fs->flags |= EXT2_FLAG_DIRTY | EXT2_FLAG_CHANGED; | |
1041 | } | |
1042 | ||
1043 | /* | |
1044 | * Mark a filesystem as changed | |
1045 | */ | |
1046 | _INLINE_ void ext2fs_mark_changed(ext2_filsys fs) | |
1047 | { | |
1048 | fs->flags |= EXT2_FLAG_CHANGED; | |
1049 | } | |
1050 | ||
1051 | /* | |
1052 | * Check to see if a filesystem has changed | |
1053 | */ | |
1054 | _INLINE_ int ext2fs_test_changed(ext2_filsys fs) | |
1055 | { | |
1056 | return (fs->flags & EXT2_FLAG_CHANGED); | |
1057 | } | |
1058 | ||
1059 | /* | |
1060 | * Mark a filesystem as valid | |
1061 | */ | |
1062 | _INLINE_ void ext2fs_mark_valid(ext2_filsys fs) | |
1063 | { | |
1064 | fs->flags |= EXT2_FLAG_VALID; | |
1065 | } | |
1066 | ||
1067 | /* | |
1068 | * Mark a filesystem as NOT valid | |
1069 | */ | |
1070 | _INLINE_ void ext2fs_unmark_valid(ext2_filsys fs) | |
1071 | { | |
1072 | fs->flags &= ~EXT2_FLAG_VALID; | |
1073 | } | |
1074 | ||
1075 | /* | |
1076 | * Check to see if a filesystem is valid | |
1077 | */ | |
1078 | _INLINE_ int ext2fs_test_valid(ext2_filsys fs) | |
1079 | { | |
1080 | return (fs->flags & EXT2_FLAG_VALID); | |
1081 | } | |
1082 | ||
1083 | /* | |
1084 | * Mark the inode bitmap as dirty | |
1085 | */ | |
1086 | _INLINE_ void ext2fs_mark_ib_dirty(ext2_filsys fs) | |
1087 | { | |
1088 | fs->flags |= EXT2_FLAG_IB_DIRTY | EXT2_FLAG_CHANGED; | |
1089 | } | |
1090 | ||
1091 | /* | |
1092 | * Mark the block bitmap as dirty | |
1093 | */ | |
1094 | _INLINE_ void ext2fs_mark_bb_dirty(ext2_filsys fs) | |
1095 | { | |
1096 | fs->flags |= EXT2_FLAG_BB_DIRTY | EXT2_FLAG_CHANGED; | |
1097 | } | |
1098 | ||
1099 | /* | |
1100 | * Check to see if a filesystem's inode bitmap is dirty | |
1101 | */ | |
1102 | _INLINE_ int ext2fs_test_ib_dirty(ext2_filsys fs) | |
1103 | { | |
1104 | return (fs->flags & EXT2_FLAG_IB_DIRTY); | |
1105 | } | |
1106 | ||
1107 | /* | |
1108 | * Check to see if a filesystem's block bitmap is dirty | |
1109 | */ | |
1110 | _INLINE_ int ext2fs_test_bb_dirty(ext2_filsys fs) | |
1111 | { | |
1112 | return (fs->flags & EXT2_FLAG_BB_DIRTY); | |
1113 | } | |
1114 | ||
1115 | /* | |
1116 | * Return the group # of a block | |
1117 | */ | |
1118 | _INLINE_ int ext2fs_group_of_blk(ext2_filsys fs, blk_t blk) | |
1119 | { | |
1120 | return (blk - fs->super->s_first_data_block) / | |
1121 | fs->super->s_blocks_per_group; | |
1122 | } | |
1123 | ||
1124 | /* | |
1125 | * Return the group # of an inode number | |
1126 | */ | |
31dbecd4 | 1127 | _INLINE_ int ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino) |
3839e657 TT |
1128 | { |
1129 | return (ino - 1) / fs->super->s_inodes_per_group; | |
1130 | } | |
0684a4f3 | 1131 | |
abf23439 ES |
1132 | /* |
1133 | * Return the first block (inclusive) in a group | |
1134 | */ | |
1135 | _INLINE_ blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group) | |
1136 | { | |
1137 | return fs->super->s_first_data_block + | |
1138 | (group * fs->super->s_blocks_per_group); | |
1139 | } | |
1140 | ||
1141 | /* | |
1142 | * Return the last block (inclusive) in a group | |
1143 | */ | |
1144 | _INLINE_ blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group) | |
1145 | { | |
1146 | return (group == fs->group_desc_count - 1 ? | |
1147 | fs->super->s_blocks_count - 1 : | |
1148 | ext2fs_group_first_block(fs, group) + | |
1149 | (fs->super->s_blocks_per_group - 1)); | |
1150 | } | |
1151 | ||
0684a4f3 TT |
1152 | _INLINE_ blk_t ext2fs_inode_data_blocks(ext2_filsys fs, |
1153 | struct ext2_inode *inode) | |
1154 | { | |
1155 | return inode->i_blocks - | |
1156 | (inode->i_file_acl ? fs->blocksize >> 9 : 0); | |
1157 | } | |
69022e02 TT |
1158 | |
1159 | /* | |
1160 | * This is an efficient, overflow safe way of calculating ceil((1.0 * a) / b) | |
1161 | */ | |
1162 | _INLINE_ unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b) | |
1163 | { | |
1164 | if (!a) | |
1165 | return 0; | |
1166 | return ((a - 1) / b) + 1; | |
1167 | } | |
3839e657 TT |
1168 | #undef _INLINE_ |
1169 | #endif | |
1170 | ||
fa7ef717 TT |
1171 | #ifdef __cplusplus |
1172 | } | |
1173 | #endif | |
1174 | ||
9abd2ce9 | 1175 | #endif /* _EXT2FS_EXT2FS_H */ |