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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" |
89dd6570 | 68 | #include "ext3_extents.h" |
5953b9de | 69 | #else |
797f5ef1 | 70 | #include <ext2fs/ext2_types.h> |
3e699064 | 71 | #include <ext2fs/ext2_fs.h> |
89dd6570 | 72 | #include <ext2fs/ext3_extents.h> |
e589f678 | 73 | #endif /* EXT2_FLAT_INCLUDES */ |
50e1e10f | 74 | |
31dbecd4 | 75 | typedef __u32 ext2_ino_t; |
50e1e10f | 76 | typedef __u32 blk_t; |
2eb374c9 | 77 | typedef __u32 dgrp_t; |
30fab293 | 78 | typedef __u32 ext2_off_t; |
03673dbb | 79 | typedef __s64 e2_blkcnt_t; |
52783e0c | 80 | typedef __u32 ext2_dirhash_t; |
3839e657 | 81 | |
b5abe6fa TT |
82 | #if EXT2_FLAT_INCLUDES |
83 | #include "com_err.h" | |
84 | #include "ext2_io.h" | |
85 | #include "ext2_err.h" | |
86 | #else | |
7c2d2569 TT |
87 | #include <et/com_err.h> |
88 | #include <ext2fs/ext2_io.h> | |
89 | #include <ext2fs/ext2_err.h> | |
b5abe6fa | 90 | #endif |
3839e657 | 91 | |
4c77fe50 TT |
92 | /* |
93 | * Portability help for Microsoft Visual C++ | |
94 | */ | |
95 | #ifdef _MSC_VER | |
96 | #define EXT2_QSORT_TYPE int __cdecl | |
97 | #else | |
98 | #define EXT2_QSORT_TYPE int | |
99 | #endif | |
100 | ||
f3db3566 TT |
101 | typedef struct struct_ext2_filsys *ext2_filsys; |
102 | ||
1e3472c5 | 103 | struct ext2fs_struct_generic_bitmap { |
4cbe8af4 | 104 | errcode_t magic; |
1e3472c5 TT |
105 | ext2_filsys fs; |
106 | __u32 start, end; | |
107 | __u32 real_end; | |
108 | char * description; | |
109 | char * bitmap; | |
110 | errcode_t base_error_code; | |
111 | __u32 reserved[7]; | |
f3db3566 TT |
112 | }; |
113 | ||
1e3472c5 TT |
114 | #define EXT2FS_MARK_ERROR 0 |
115 | #define EXT2FS_UNMARK_ERROR 1 | |
116 | #define EXT2FS_TEST_ERROR 2 | |
f3db3566 | 117 | |
1e3472c5 | 118 | typedef struct ext2fs_struct_generic_bitmap *ext2fs_generic_bitmap; |
1e3472c5 | 119 | typedef struct ext2fs_struct_generic_bitmap *ext2fs_inode_bitmap; |
1e3472c5 | 120 | typedef struct ext2fs_struct_generic_bitmap *ext2fs_block_bitmap; |
f3db3566 | 121 | |
7f88b043 | 122 | #define EXT2_FIRST_INODE(s) EXT2_FIRST_INO(s) |
067911ae | 123 | |
7f88b043 | 124 | |
19c78dc0 | 125 | /* |
067911ae | 126 | * Badblocks list definitions |
19c78dc0 TT |
127 | */ |
128 | ||
b7a00563 TT |
129 | typedef struct ext2_struct_u32_list *ext2_badblocks_list; |
130 | typedef struct ext2_struct_u32_iterate *ext2_badblocks_iterate; | |
131 | ||
132 | typedef struct ext2_struct_u32_list *ext2_u32_list; | |
133 | typedef struct ext2_struct_u32_iterate *ext2_u32_iterate; | |
19c78dc0 TT |
134 | |
135 | /* old */ | |
b7a00563 TT |
136 | typedef struct ext2_struct_u32_list *badblocks_list; |
137 | typedef struct ext2_struct_u32_iterate *badblocks_iterate; | |
19c78dc0 TT |
138 | |
139 | #define BADBLOCKS_FLAG_DIRTY 1 | |
140 | ||
141 | /* | |
142 | * ext2_dblist structure and abstractions (see dblist.c) | |
143 | */ | |
144 | struct ext2_db_entry { | |
31dbecd4 | 145 | ext2_ino_t ino; |
19c78dc0 TT |
146 | blk_t blk; |
147 | int blockcnt; | |
148 | }; | |
149 | ||
150 | typedef struct ext2_struct_dblist *ext2_dblist; | |
151 | ||
152 | #define DBLIST_ABORT 1 | |
153 | ||
30fab293 TT |
154 | /* |
155 | * ext2_fileio definitions | |
156 | */ | |
157 | ||
158 | #define EXT2_FILE_WRITE 0x0001 | |
159 | #define EXT2_FILE_CREATE 0x0002 | |
160 | ||
161 | #define EXT2_FILE_MASK 0x00FF | |
162 | ||
163 | #define EXT2_FILE_BUF_DIRTY 0x4000 | |
164 | #define EXT2_FILE_BUF_VALID 0x2000 | |
165 | ||
166 | typedef struct ext2_file *ext2_file_t; | |
167 | ||
168 | #define EXT2_SEEK_SET 0 | |
169 | #define EXT2_SEEK_CUR 1 | |
170 | #define EXT2_SEEK_END 2 | |
171 | ||
3839e657 | 172 | /* |
a112847b | 173 | * Flags for the ext2_filsys structure and for ext2fs_open() |
3839e657 | 174 | */ |
19c78dc0 TT |
175 | #define EXT2_FLAG_RW 0x01 |
176 | #define EXT2_FLAG_CHANGED 0x02 | |
177 | #define EXT2_FLAG_DIRTY 0x04 | |
178 | #define EXT2_FLAG_VALID 0x08 | |
179 | #define EXT2_FLAG_IB_DIRTY 0x10 | |
180 | #define EXT2_FLAG_BB_DIRTY 0x20 | |
5c576477 TT |
181 | #define EXT2_FLAG_SWAP_BYTES 0x40 |
182 | #define EXT2_FLAG_SWAP_BYTES_READ 0x80 | |
183 | #define EXT2_FLAG_SWAP_BYTES_WRITE 0x100 | |
184 | #define EXT2_FLAG_MASTER_SB_ONLY 0x200 | |
19c78dc0 | 185 | #define EXT2_FLAG_FORCE 0x400 |
43ec8734 | 186 | #define EXT2_FLAG_SUPER_ONLY 0x800 |
a112847b | 187 | #define EXT2_FLAG_JOURNAL_DEV_OK 0x1000 |
a78926ef | 188 | #define EXT2_FLAG_IMAGE_FILE 0x2000 |
39c47ce6 | 189 | #define EXT2_FLAG_EXCLUSIVE 0x4000 |
cf8272e1 | 190 | #define EXT2_FLAG_SOFTSUPP_FEATURES 0x8000 |
3839e657 | 191 | |
7f88b043 TT |
192 | /* |
193 | * Special flag in the ext2 inode i_flag field that means that this is | |
194 | * a new inode. (So that ext2_write_inode() can clear extra fields.) | |
195 | */ | |
196 | #define EXT2_NEW_INODE_FL 0x80000000 | |
197 | ||
4e246704 TT |
198 | /* |
199 | * Flags for mkjournal | |
200 | * | |
201 | * EXT2_MKJOURNAL_V1_SUPER Make a (deprecated) V1 journal superblock | |
202 | */ | |
203 | #define EXT2_MKJOURNAL_V1_SUPER 0x0000001 | |
204 | ||
3839e657 | 205 | struct struct_ext2_filsys { |
4cbe8af4 | 206 | errcode_t magic; |
3839e657 TT |
207 | io_channel io; |
208 | int flags; | |
209 | char * device_name; | |
210 | struct ext2_super_block * super; | |
54434927 | 211 | unsigned int blocksize; |
3839e657 | 212 | int fragsize; |
2eb374c9 | 213 | dgrp_t group_desc_count; |
3839e657 TT |
214 | unsigned long desc_blocks; |
215 | struct ext2_group_desc * group_desc; | |
216 | int inode_blocks_per_group; | |
f3db3566 TT |
217 | ext2fs_inode_bitmap inode_map; |
218 | ext2fs_block_bitmap block_map; | |
31dbecd4 TT |
219 | errcode_t (*get_blocks)(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks); |
220 | errcode_t (*check_directory)(ext2_filsys fs, ext2_ino_t ino); | |
3839e657 | 221 | errcode_t (*write_bitmaps)(ext2_filsys fs); |
31dbecd4 | 222 | errcode_t (*read_inode)(ext2_filsys fs, ext2_ino_t ino, |
1e3472c5 | 223 | struct ext2_inode *inode); |
31dbecd4 | 224 | errcode_t (*write_inode)(ext2_filsys fs, ext2_ino_t ino, |
1e3472c5 | 225 | struct ext2_inode *inode); |
b7a00563 | 226 | ext2_badblocks_list badblocks; |
19c78dc0 | 227 | ext2_dblist dblist; |
a29f4d30 | 228 | __u32 stride; /* for mke2fs */ |
c180ac86 | 229 | struct ext2_super_block * orig_super; |
a78926ef | 230 | struct ext2_image_hdr * image_header; |
6a525069 | 231 | __u32 umask; |
9b9a780f | 232 | time_t now; |
19c78dc0 TT |
233 | /* |
234 | * Reserved for future expansion | |
235 | */ | |
32138187 | 236 | __u32 reserved[7]; |
3839e657 TT |
237 | |
238 | /* | |
a29f4d30 | 239 | * Reserved for the use of the calling application. |
3839e657 | 240 | */ |
b5abe6fa | 241 | void * priv_data; |
a29f4d30 TT |
242 | |
243 | /* | |
244 | * Inode cache | |
245 | */ | |
246 | struct ext2_inode_cache *icache; | |
1ad54a94 | 247 | io_channel image_io; |
3839e657 TT |
248 | }; |
249 | ||
5953b9de TT |
250 | #if EXT2_FLAT_INCLUDES |
251 | #include "e2_bitops.h" | |
252 | #else | |
7c2d2569 | 253 | #include <ext2fs/bitops.h> |
5953b9de | 254 | #endif |
d40259fd | 255 | |
3839e657 TT |
256 | /* |
257 | * Return flags for the block iterator functions | |
258 | */ | |
259 | #define BLOCK_CHANGED 1 | |
260 | #define BLOCK_ABORT 2 | |
261 | #define BLOCK_ERROR 4 | |
262 | ||
263 | /* | |
264 | * Block interate flags | |
50e1e10f TT |
265 | * |
266 | * BLOCK_FLAG_APPEND, or BLOCK_FLAG_HOLE, indicates that the interator | |
267 | * function should be called on blocks where the block number is zero. | |
268 | * This is used by ext2fs_expand_dir() to be able to add a new block | |
269 | * to an inode. It can also be used for programs that want to be able | |
270 | * to deal with files that contain "holes". | |
271 | * | |
7447921d TT |
272 | * BLOCK_FLAG_DEPTH_TRAVERSE indicates that the iterator function for |
273 | * the indirect, doubly indirect, etc. blocks should be called after | |
274 | * all of the blocks containined in the indirect blocks are processed. | |
50e1e10f TT |
275 | * This is useful if you are going to be deallocating blocks from an |
276 | * inode. | |
1e3472c5 TT |
277 | * |
278 | * BLOCK_FLAG_DATA_ONLY indicates that the iterator function should be | |
279 | * called for data blocks only. | |
674a4ee1 TT |
280 | * |
281 | * BLOCK_FLAG_NO_LARGE is for internal use only. It informs | |
36a43d67 | 282 | * ext2fs_block_iterate2 that large files won't be accepted. |
3839e657 TT |
283 | */ |
284 | #define BLOCK_FLAG_APPEND 1 | |
50e1e10f | 285 | #define BLOCK_FLAG_HOLE 1 |
3839e657 | 286 | #define BLOCK_FLAG_DEPTH_TRAVERSE 2 |
1e3472c5 TT |
287 | #define BLOCK_FLAG_DATA_ONLY 4 |
288 | ||
674a4ee1 TT |
289 | #define BLOCK_FLAG_NO_LARGE 0x1000 |
290 | ||
1e3472c5 TT |
291 | /* |
292 | * Magic "block count" return values for the block iterator function. | |
293 | */ | |
294 | #define BLOCK_COUNT_IND (-1) | |
295 | #define BLOCK_COUNT_DIND (-2) | |
296 | #define BLOCK_COUNT_TIND (-3) | |
297 | #define BLOCK_COUNT_TRANSLATOR (-4) | |
3839e657 | 298 | |
4a31c48b | 299 | #if 0 |
1e1da29f TT |
300 | /* |
301 | * Flags for ext2fs_move_blocks | |
302 | */ | |
303 | #define EXT2_BMOVE_GET_DBLIST 0x0001 | |
36f21439 | 304 | #define EXT2_BMOVE_DEBUG 0x0002 |
4a31c48b | 305 | #endif |
1e1da29f | 306 | |
f9190c8a TT |
307 | /* |
308 | * Flags for directory block reading and writing functions | |
309 | */ | |
310 | #define EXT2_DIRBLOCK_V2_STRUCT 0x0001 | |
311 | ||
3839e657 TT |
312 | /* |
313 | * Return flags for the directory iterator functions | |
314 | */ | |
315 | #define DIRENT_CHANGED 1 | |
316 | #define DIRENT_ABORT 2 | |
317 | #define DIRENT_ERROR 3 | |
318 | ||
319 | /* | |
320 | * Directory iterator flags | |
321 | */ | |
322 | ||
323 | #define DIRENT_FLAG_INCLUDE_EMPTY 1 | |
8bd0c959 | 324 | #define DIRENT_FLAG_INCLUDE_REMOVED 2 |
19c78dc0 TT |
325 | |
326 | #define DIRENT_DOT_FILE 1 | |
327 | #define DIRENT_DOT_DOT_FILE 2 | |
328 | #define DIRENT_OTHER_FILE 3 | |
8bd0c959 | 329 | #define DIRENT_DELETED_FILE 4 |
19c78dc0 | 330 | |
3839e657 TT |
331 | /* |
332 | * Inode scan definitions | |
333 | */ | |
f3db3566 TT |
334 | typedef struct ext2_struct_inode_scan *ext2_inode_scan; |
335 | ||
19c78dc0 TT |
336 | /* |
337 | * ext2fs_scan flags | |
338 | */ | |
339 | #define EXT2_SF_CHK_BADBLOCKS 0x0001 | |
340 | #define EXT2_SF_BAD_INODE_BLK 0x0002 | |
341 | #define EXT2_SF_BAD_EXTRA_BYTES 0x0004 | |
342 | #define EXT2_SF_SKIP_MISSING_ITABLE 0x0008 | |
f5fa2007 | 343 | #define EXT2_SF_DO_LAZY 0x0010 |
3839e657 | 344 | |
50e1e10f TT |
345 | /* |
346 | * ext2fs_check_if_mounted flags | |
347 | */ | |
348 | #define EXT2_MF_MOUNTED 1 | |
349 | #define EXT2_MF_ISROOT 2 | |
19c78dc0 | 350 | #define EXT2_MF_READONLY 4 |
07cefe7a | 351 | #define EXT2_MF_SWAP 8 |
2fa8f37f | 352 | #define EXT2_MF_BUSY 16 |
50e1e10f TT |
353 | |
354 | /* | |
355 | * Ext2/linux mode flags. We define them here so that we don't need | |
356 | * to depend on the OS's sys/stat.h, since we may be compiling on a | |
357 | * non-Linux system. | |
358 | */ | |
359 | #define LINUX_S_IFMT 00170000 | |
360 | #define LINUX_S_IFSOCK 0140000 | |
361 | #define LINUX_S_IFLNK 0120000 | |
362 | #define LINUX_S_IFREG 0100000 | |
363 | #define LINUX_S_IFBLK 0060000 | |
364 | #define LINUX_S_IFDIR 0040000 | |
365 | #define LINUX_S_IFCHR 0020000 | |
366 | #define LINUX_S_IFIFO 0010000 | |
367 | #define LINUX_S_ISUID 0004000 | |
368 | #define LINUX_S_ISGID 0002000 | |
369 | #define LINUX_S_ISVTX 0001000 | |
370 | ||
1e3472c5 TT |
371 | #define LINUX_S_IRWXU 00700 |
372 | #define LINUX_S_IRUSR 00400 | |
373 | #define LINUX_S_IWUSR 00200 | |
374 | #define LINUX_S_IXUSR 00100 | |
375 | ||
376 | #define LINUX_S_IRWXG 00070 | |
377 | #define LINUX_S_IRGRP 00040 | |
378 | #define LINUX_S_IWGRP 00020 | |
379 | #define LINUX_S_IXGRP 00010 | |
380 | ||
381 | #define LINUX_S_IRWXO 00007 | |
382 | #define LINUX_S_IROTH 00004 | |
383 | #define LINUX_S_IWOTH 00002 | |
384 | #define LINUX_S_IXOTH 00001 | |
385 | ||
50e1e10f TT |
386 | #define LINUX_S_ISLNK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFLNK) |
387 | #define LINUX_S_ISREG(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFREG) | |
388 | #define LINUX_S_ISDIR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFDIR) | |
389 | #define LINUX_S_ISCHR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFCHR) | |
390 | #define LINUX_S_ISBLK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFBLK) | |
391 | #define LINUX_S_ISFIFO(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFIFO) | |
392 | #define LINUX_S_ISSOCK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFSOCK) | |
393 | ||
819157db TT |
394 | /* |
395 | * ext2 size of an inode | |
396 | */ | |
397 | #define EXT2_I_SIZE(i) ((i)->i_size | ((__u64) (i)->i_size_high << 32)) | |
398 | ||
19c78dc0 TT |
399 | /* |
400 | * ext2_icount_t abstraction | |
401 | */ | |
402 | #define EXT2_ICOUNT_OPT_INCREMENT 0x01 | |
403 | ||
404 | typedef struct ext2_icount *ext2_icount_t; | |
405 | ||
30fab293 TT |
406 | /* |
407 | * Flags for ext2fs_bmap | |
408 | */ | |
1d667534 TT |
409 | #define BMAP_ALLOC 0x0001 |
410 | #define BMAP_SET 0x0002 | |
30fab293 | 411 | |
72ed1264 TT |
412 | /* |
413 | * Flags for imager.c functions | |
414 | */ | |
415 | #define IMAGER_FLAG_INODEMAP 1 | |
416 | #define IMAGER_FLAG_SPARSEWRITE 2 | |
417 | ||
f3db3566 TT |
418 | /* |
419 | * For checking structure magic numbers... | |
420 | */ | |
3839e657 | 421 | |
f3db3566 TT |
422 | #define EXT2_CHECK_MAGIC(struct, code) \ |
423 | if ((struct)->magic != (code)) return (code) | |
1e3472c5 TT |
424 | |
425 | ||
426 | /* | |
e5b38a5f | 427 | * For ext2 compression support |
1e3472c5 | 428 | */ |
5a63dd28 TT |
429 | #define EXT2FS_COMPRESSED_BLKADDR ((blk_t) 0xffffffff) |
430 | #define HOLE_BLKADDR(_b) ((_b) == 0 || (_b) == EXT2FS_COMPRESSED_BLKADDR) | |
431 | ||
521e3685 | 432 | /* |
426d734f | 433 | * Features supported by this version of the library |
521e3685 | 434 | */ |
3a5f8eaa TT |
435 | #define EXT2_LIB_FEATURE_COMPAT_SUPP (EXT2_FEATURE_COMPAT_DIR_PREALLOC|\ |
436 | EXT2_FEATURE_COMPAT_IMAGIC_INODES|\ | |
342d847d | 437 | EXT3_FEATURE_COMPAT_HAS_JOURNAL|\ |
d323f8fb | 438 | EXT2_FEATURE_COMPAT_RESIZE_INODE|\ |
52783e0c | 439 | EXT2_FEATURE_COMPAT_DIR_INDEX|\ |
f5fa2007 | 440 | EXT2_FEATURE_COMPAT_LAZY_BG|\ |
342d847d | 441 | EXT2_FEATURE_COMPAT_EXT_ATTR) |
2fe1efe2 | 442 | |
5a63dd28 TT |
443 | /* This #ifdef is temporary until compression is fully supported */ |
444 | #ifdef ENABLE_COMPRESSION | |
e589f678 TT |
445 | #ifndef I_KNOW_THAT_COMPRESSION_IS_EXPERIMENTAL |
446 | /* If the below warning bugs you, then have | |
447 | `CPPFLAGS=-DI_KNOW_THAT_COMPRESSION_IS_EXPERIMENTAL' in your | |
448 | environment at configure time. */ | |
cdaf1fa7 | 449 | #warning "Compression support is experimental" |
e589f678 | 450 | #endif |
5a63dd28 | 451 | #define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\ |
ab146766 | 452 | EXT2_FEATURE_INCOMPAT_COMPRESSION|\ |
a112847b | 453 | EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\ |
c046ac7f | 454 | EXT2_FEATURE_INCOMPAT_META_BG|\ |
ab146766 | 455 | EXT3_FEATURE_INCOMPAT_RECOVER) |
5a63dd28 | 456 | #else |
ab146766 | 457 | #define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\ |
a112847b | 458 | EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\ |
c046ac7f | 459 | EXT2_FEATURE_INCOMPAT_META_BG|\ |
ab146766 | 460 | EXT3_FEATURE_INCOMPAT_RECOVER) |
5a63dd28 | 461 | #endif |
674a4ee1 TT |
462 | #define EXT2_LIB_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|\ |
463 | EXT2_FEATURE_RO_COMPAT_LARGE_FILE) | |
cf8272e1 TT |
464 | |
465 | /* | |
466 | * These features are only allowed if EXT2_FLAG_SOFTSUPP_FEATURES is passed | |
467 | * to ext2fs_openfs() | |
468 | */ | |
469 | #define EXT2_LIB_SOFTSUPP_INCOMPAT (EXT3_FEATURE_INCOMPAT_EXTENTS) | |
470 | #define EXT2_LIB_SOFTSUPP_RO_COMPAT (EXT4_FEATURE_RO_COMPAT_HUGE_FILE|\ | |
471 | EXT4_FEATURE_RO_COMPAT_GDT_CSUM|\ | |
472 | EXT4_FEATURE_RO_COMPAT_DIR_NLINK|\ | |
473 | EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE) | |
474 | ||
3839e657 TT |
475 | /* |
476 | * function prototypes | |
477 | */ | |
478 | ||
479 | /* alloc.c */ | |
31dbecd4 TT |
480 | extern errcode_t ext2fs_new_inode(ext2_filsys fs, ext2_ino_t dir, int mode, |
481 | ext2fs_inode_bitmap map, ext2_ino_t *ret); | |
3839e657 | 482 | extern errcode_t ext2fs_new_block(ext2_filsys fs, blk_t goal, |
f3db3566 | 483 | ext2fs_block_bitmap map, blk_t *ret); |
3839e657 | 484 | extern errcode_t ext2fs_get_free_blocks(ext2_filsys fs, blk_t start, |
f3db3566 TT |
485 | blk_t finish, int num, |
486 | ext2fs_block_bitmap map, | |
3839e657 | 487 | blk_t *ret); |
30fab293 TT |
488 | extern errcode_t ext2fs_alloc_block(ext2_filsys fs, blk_t goal, |
489 | char *block_buf, blk_t *ret); | |
3839e657 | 490 | |
ef344e13 TT |
491 | /* alloc_sb.c */ |
492 | extern int ext2fs_reserve_super_and_bgd(ext2_filsys fs, | |
493 | dgrp_t group, | |
494 | ext2fs_block_bitmap bmap); | |
495 | ||
8bd0c959 TT |
496 | /* alloc_stats.c */ |
497 | void ext2fs_inode_alloc_stats(ext2_filsys fs, ext2_ino_t ino, int inuse); | |
7f961d42 TT |
498 | void ext2fs_inode_alloc_stats2(ext2_filsys fs, ext2_ino_t ino, |
499 | int inuse, int isdir); | |
8bd0c959 TT |
500 | void ext2fs_block_alloc_stats(ext2_filsys fs, blk_t blk, int inuse); |
501 | ||
1e1da29f TT |
502 | /* alloc_tables.c */ |
503 | extern errcode_t ext2fs_allocate_tables(ext2_filsys fs); | |
2eb374c9 | 504 | extern errcode_t ext2fs_allocate_group_table(ext2_filsys fs, dgrp_t group, |
1e1da29f | 505 | ext2fs_block_bitmap bmap); |
19c78dc0 | 506 | |
3839e657 | 507 | /* badblocks.c */ |
b7a00563 TT |
508 | extern errcode_t ext2fs_u32_list_create(ext2_u32_list *ret, int size); |
509 | extern errcode_t ext2fs_u32_list_add(ext2_u32_list bb, __u32 blk); | |
54434927 | 510 | extern int ext2fs_u32_list_find(ext2_u32_list bb, __u32 blk); |
b7a00563 TT |
511 | extern int ext2fs_u32_list_test(ext2_u32_list bb, blk_t blk); |
512 | extern errcode_t ext2fs_u32_list_iterate_begin(ext2_u32_list bb, | |
513 | ext2_u32_iterate *ret); | |
514 | extern int ext2fs_u32_list_iterate(ext2_u32_iterate iter, blk_t *blk); | |
515 | extern void ext2fs_u32_list_iterate_end(ext2_u32_iterate iter); | |
516 | extern errcode_t ext2fs_u32_copy(ext2_u32_list src, ext2_u32_list *dest); | |
517 | extern int ext2fs_u32_list_equal(ext2_u32_list bb1, ext2_u32_list bb2); | |
518 | ||
19c78dc0 TT |
519 | extern errcode_t ext2fs_badblocks_list_create(ext2_badblocks_list *ret, |
520 | int size); | |
19c78dc0 TT |
521 | extern errcode_t ext2fs_badblocks_list_add(ext2_badblocks_list bb, |
522 | blk_t blk); | |
523 | extern int ext2fs_badblocks_list_test(ext2_badblocks_list bb, | |
524 | blk_t blk); | |
7d7bdd57 TT |
525 | extern int ext2fs_u32_list_del(ext2_u32_list bb, __u32 blk); |
526 | extern void ext2fs_badblocks_list_del(ext2_u32_list bb, __u32 blk); | |
19c78dc0 TT |
527 | extern errcode_t |
528 | ext2fs_badblocks_list_iterate_begin(ext2_badblocks_list bb, | |
529 | ext2_badblocks_iterate *ret); | |
530 | extern int ext2fs_badblocks_list_iterate(ext2_badblocks_iterate iter, | |
531 | blk_t *blk); | |
532 | extern void ext2fs_badblocks_list_iterate_end(ext2_badblocks_iterate iter); | |
a29f4d30 TT |
533 | extern errcode_t ext2fs_badblocks_copy(ext2_badblocks_list src, |
534 | ext2_badblocks_list *dest); | |
57dca854 TT |
535 | extern int ext2fs_badblocks_equal(ext2_badblocks_list bb1, |
536 | ext2_badblocks_list bb2); | |
220c0040 | 537 | extern int ext2fs_u32_list_count(ext2_u32_list bb); |
19c78dc0 TT |
538 | |
539 | /* bb_compat */ | |
3839e657 | 540 | extern errcode_t badblocks_list_create(badblocks_list *ret, int size); |
3839e657 TT |
541 | extern errcode_t badblocks_list_add(badblocks_list bb, blk_t blk); |
542 | extern int badblocks_list_test(badblocks_list bb, blk_t blk); | |
543 | extern errcode_t badblocks_list_iterate_begin(badblocks_list bb, | |
544 | badblocks_iterate *ret); | |
545 | extern int badblocks_list_iterate(badblocks_iterate iter, blk_t *blk); | |
546 | extern void badblocks_list_iterate_end(badblocks_iterate iter); | |
a29f4d30 | 547 | extern void badblocks_list_free(badblocks_list bb); |
3839e657 TT |
548 | |
549 | /* bb_inode.c */ | |
550 | extern errcode_t ext2fs_update_bb_inode(ext2_filsys fs, | |
19c78dc0 | 551 | ext2_badblocks_list bb_list); |
3839e657 TT |
552 | |
553 | /* bitmaps.c */ | |
a0553c9d TT |
554 | extern void ext2fs_free_block_bitmap(ext2fs_block_bitmap bitmap); |
555 | extern void ext2fs_free_inode_bitmap(ext2fs_inode_bitmap bitmap); | |
3839e657 TT |
556 | extern errcode_t ext2fs_write_inode_bitmap(ext2_filsys fs); |
557 | extern errcode_t ext2fs_write_block_bitmap (ext2_filsys fs); | |
558 | extern errcode_t ext2fs_read_inode_bitmap (ext2_filsys fs); | |
559 | extern errcode_t ext2fs_read_block_bitmap(ext2_filsys fs); | |
50e1e10f TT |
560 | extern errcode_t ext2fs_allocate_block_bitmap(ext2_filsys fs, |
561 | const char *descr, | |
562 | ext2fs_block_bitmap *ret); | |
563 | extern errcode_t ext2fs_allocate_inode_bitmap(ext2_filsys fs, | |
564 | const char *descr, | |
565 | ext2fs_inode_bitmap *ret); | |
566 | extern errcode_t ext2fs_fudge_inode_bitmap_end(ext2fs_inode_bitmap bitmap, | |
31dbecd4 | 567 | ext2_ino_t end, ext2_ino_t *oend); |
50e1e10f TT |
568 | extern errcode_t ext2fs_fudge_block_bitmap_end(ext2fs_block_bitmap bitmap, |
569 | blk_t end, blk_t *oend); | |
570 | extern void ext2fs_clear_inode_bitmap(ext2fs_inode_bitmap bitmap); | |
571 | extern void ext2fs_clear_block_bitmap(ext2fs_block_bitmap bitmap); | |
3839e657 TT |
572 | extern errcode_t ext2fs_read_bitmaps(ext2_filsys fs); |
573 | extern errcode_t ext2fs_write_bitmaps(ext2_filsys fs); | |
574 | ||
575 | /* block.c */ | |
576 | extern errcode_t ext2fs_block_iterate(ext2_filsys fs, | |
31dbecd4 | 577 | ext2_ino_t ino, |
3839e657 TT |
578 | int flags, |
579 | char *block_buf, | |
580 | int (*func)(ext2_filsys fs, | |
581 | blk_t *blocknr, | |
582 | int blockcnt, | |
b5abe6fa TT |
583 | void *priv_data), |
584 | void *priv_data); | |
19c78dc0 | 585 | errcode_t ext2fs_block_iterate2(ext2_filsys fs, |
31dbecd4 | 586 | ext2_ino_t ino, |
674a4ee1 TT |
587 | int flags, |
588 | char *block_buf, | |
589 | int (*func)(ext2_filsys fs, | |
590 | blk_t *blocknr, | |
03673dbb | 591 | e2_blkcnt_t blockcnt, |
674a4ee1 TT |
592 | blk_t ref_blk, |
593 | int ref_offset, | |
594 | void *priv_data), | |
595 | void *priv_data); | |
19c78dc0 | 596 | |
30fab293 | 597 | /* bmap.c */ |
31dbecd4 | 598 | extern errcode_t ext2fs_bmap(ext2_filsys fs, ext2_ino_t ino, |
30fab293 TT |
599 | struct ext2_inode *inode, |
600 | char *block_buf, int bmap_flags, | |
601 | blk_t block, blk_t *phys_blk); | |
602 | ||
603 | ||
4a31c48b | 604 | #if 0 |
1e1da29f TT |
605 | /* bmove.c */ |
606 | extern errcode_t ext2fs_move_blocks(ext2_filsys fs, | |
607 | ext2fs_block_bitmap reserve, | |
9941fb73 | 608 | ext2fs_block_bitmap alloc_map, |
1e1da29f | 609 | int flags); |
4a31c48b | 610 | #endif |
1e1da29f | 611 | |
f3db3566 TT |
612 | /* check_desc.c */ |
613 | extern errcode_t ext2fs_check_desc(ext2_filsys fs); | |
614 | ||
3839e657 TT |
615 | /* closefs.c */ |
616 | extern errcode_t ext2fs_close(ext2_filsys fs); | |
617 | extern errcode_t ext2fs_flush(ext2_filsys fs); | |
1b4cd9c7 | 618 | extern int ext2fs_bg_has_super(ext2_filsys fs, int group_block); |
ef344e13 TT |
619 | extern int ext2fs_super_and_bgd_loc(ext2_filsys fs, |
620 | dgrp_t group, | |
621 | blk_t *ret_super_blk, | |
622 | blk_t *ret_old_desc_blk, | |
623 | blk_t *ret_new_desc_blk, | |
624 | int *ret_meta_bg); | |
1b4cd9c7 | 625 | extern void ext2fs_update_dynamic_rev(ext2_filsys fs); |
3839e657 | 626 | |
50e1e10f TT |
627 | /* cmp_bitmaps.c */ |
628 | extern errcode_t ext2fs_compare_block_bitmap(ext2fs_block_bitmap bm1, | |
629 | ext2fs_block_bitmap bm2); | |
630 | extern errcode_t ext2fs_compare_inode_bitmap(ext2fs_inode_bitmap bm1, | |
631 | ext2fs_inode_bitmap bm2); | |
632 | ||
19c78dc0 TT |
633 | /* dblist.c */ |
634 | ||
31dbecd4 | 635 | extern errcode_t ext2fs_get_num_dirs(ext2_filsys fs, ext2_ino_t *ret_num_dirs); |
a29f4d30 | 636 | extern errcode_t ext2fs_init_dblist(ext2_filsys fs, ext2_dblist *ret_dblist); |
31dbecd4 | 637 | extern errcode_t ext2fs_add_dir_block(ext2_dblist dblist, ext2_ino_t ino, |
a29f4d30 | 638 | blk_t blk, int blockcnt); |
ea1959f0 TT |
639 | extern void ext2fs_dblist_sort(ext2_dblist dblist, |
640 | EXT2_QSORT_TYPE (*sortfunc)(const void *, | |
641 | const void *)); | |
a29f4d30 TT |
642 | extern errcode_t ext2fs_dblist_iterate(ext2_dblist dblist, |
643 | int (*func)(ext2_filsys fs, struct ext2_db_entry *db_info, | |
b5abe6fa TT |
644 | void *priv_data), |
645 | void *priv_data); | |
31dbecd4 | 646 | extern errcode_t ext2fs_set_dir_block(ext2_dblist dblist, ext2_ino_t ino, |
a29f4d30 TT |
647 | blk_t blk, int blockcnt); |
648 | extern errcode_t ext2fs_copy_dblist(ext2_dblist src, | |
649 | ext2_dblist *dest); | |
549860c5 | 650 | extern int ext2fs_dblist_count(ext2_dblist dblist); |
19c78dc0 TT |
651 | |
652 | /* dblist_dir.c */ | |
653 | extern errcode_t | |
654 | ext2fs_dblist_dir_iterate(ext2_dblist dblist, | |
655 | int flags, | |
656 | char *block_buf, | |
31dbecd4 | 657 | int (*func)(ext2_ino_t dir, |
19c78dc0 TT |
658 | int entry, |
659 | struct ext2_dir_entry *dirent, | |
660 | int offset, | |
661 | int blocksize, | |
662 | char *buf, | |
b5abe6fa TT |
663 | void *priv_data), |
664 | void *priv_data); | |
50e1e10f TT |
665 | |
666 | /* dirblock.c */ | |
667 | extern errcode_t ext2fs_read_dir_block(ext2_filsys fs, blk_t block, | |
668 | void *buf); | |
f9190c8a TT |
669 | extern errcode_t ext2fs_read_dir_block2(ext2_filsys fs, blk_t block, |
670 | void *buf, int flags); | |
50e1e10f TT |
671 | extern errcode_t ext2fs_write_dir_block(ext2_filsys fs, blk_t block, |
672 | void *buf); | |
f9190c8a TT |
673 | extern errcode_t ext2fs_write_dir_block2(ext2_filsys fs, blk_t block, |
674 | void *buf, int flags); | |
50e1e10f | 675 | |
52783e0c TT |
676 | /* dirhash.c */ |
677 | extern errcode_t ext2fs_dirhash(int version, const char *name, int len, | |
b33278c4 | 678 | const __u32 *seed, |
503f9e7f TT |
679 | ext2_dirhash_t *ret_hash, |
680 | ext2_dirhash_t *ret_minor_hash); | |
52783e0c TT |
681 | |
682 | ||
19c78dc0 TT |
683 | /* dir_iterate.c */ |
684 | extern errcode_t ext2fs_dir_iterate(ext2_filsys fs, | |
31dbecd4 | 685 | ext2_ino_t dir, |
19c78dc0 TT |
686 | int flags, |
687 | char *block_buf, | |
688 | int (*func)(struct ext2_dir_entry *dirent, | |
689 | int offset, | |
690 | int blocksize, | |
691 | char *buf, | |
b5abe6fa TT |
692 | void *priv_data), |
693 | void *priv_data); | |
8bd0c959 TT |
694 | extern errcode_t ext2fs_dir_iterate2(ext2_filsys fs, |
695 | ext2_ino_t dir, | |
696 | int flags, | |
697 | char *block_buf, | |
698 | int (*func)(ext2_ino_t dir, | |
699 | int entry, | |
700 | struct ext2_dir_entry *dirent, | |
701 | int offset, | |
702 | int blocksize, | |
703 | char *buf, | |
704 | void *priv_data), | |
705 | void *priv_data); | |
19c78dc0 | 706 | |
a29f4d30 TT |
707 | /* dupfs.c */ |
708 | extern errcode_t ext2fs_dup_handle(ext2_filsys src, ext2_filsys *dest); | |
19c78dc0 | 709 | |
3839e657 | 710 | /* expanddir.c */ |
31dbecd4 | 711 | extern errcode_t ext2fs_expand_dir(ext2_filsys fs, ext2_ino_t dir); |
3839e657 | 712 | |
342d847d | 713 | /* ext_attr.c */ |
342d847d | 714 | extern errcode_t ext2fs_read_ext_attr(ext2_filsys fs, blk_t block, void *buf); |
0684a4f3 TT |
715 | extern errcode_t ext2fs_write_ext_attr(ext2_filsys fs, blk_t block, |
716 | void *buf); | |
717 | extern errcode_t ext2fs_adjust_ea_refcount(ext2_filsys fs, blk_t blk, | |
718 | char *block_buf, | |
719 | int adjust, __u32 *newcount); | |
720 | ||
30fab293 | 721 | /* fileio.c */ |
a435ec34 TT |
722 | extern errcode_t ext2fs_file_open2(ext2_filsys fs, ext2_ino_t ino, |
723 | struct ext2_inode *inode, | |
724 | int flags, ext2_file_t *ret); | |
31dbecd4 | 725 | extern errcode_t ext2fs_file_open(ext2_filsys fs, ext2_ino_t ino, |
30fab293 | 726 | int flags, ext2_file_t *ret); |
79a90bda | 727 | extern ext2_filsys ext2fs_file_get_fs(ext2_file_t file); |
30fab293 | 728 | extern errcode_t ext2fs_file_close(ext2_file_t file); |
f12e285f | 729 | extern errcode_t ext2fs_file_flush(ext2_file_t file); |
30fab293 | 730 | extern errcode_t ext2fs_file_read(ext2_file_t file, void *buf, |
79a90bda | 731 | unsigned int wanted, unsigned int *got); |
f12e285f | 732 | extern errcode_t ext2fs_file_write(ext2_file_t file, const void *buf, |
79a90bda | 733 | unsigned int nbytes, unsigned int *written); |
819157db TT |
734 | extern errcode_t ext2fs_file_llseek(ext2_file_t file, __u64 offset, |
735 | int whence, __u64 *ret_pos); | |
674a4ee1 TT |
736 | extern errcode_t ext2fs_file_lseek(ext2_file_t file, ext2_off_t offset, |
737 | int whence, ext2_off_t *ret_pos); | |
819157db | 738 | errcode_t ext2fs_file_get_lsize(ext2_file_t file, __u64 *ret_size); |
79a90bda TT |
739 | extern ext2_off_t ext2fs_file_get_size(ext2_file_t file); |
740 | extern errcode_t ext2fs_file_set_size(ext2_file_t file, ext2_off_t size); | |
30fab293 | 741 | |
de23aa1d TT |
742 | /* finddev.c */ |
743 | extern char *ext2fs_find_block_device(dev_t device); | |
744 | ||
4d0f3e17 TT |
745 | /* flushb.c */ |
746 | extern errcode_t ext2fs_sync_device(int fd, int flushb); | |
747 | ||
3839e657 TT |
748 | /* freefs.c */ |
749 | extern void ext2fs_free(ext2_filsys fs); | |
a29f4d30 | 750 | extern void ext2fs_free_dblist(ext2_dblist dblist); |
b7a00563 TT |
751 | extern void ext2fs_badblocks_list_free(ext2_badblocks_list bb); |
752 | extern void ext2fs_u32_list_free(ext2_u32_list bb); | |
50e1e10f | 753 | |
a0553c9d TT |
754 | /* gen_bitmap.c */ |
755 | extern void ext2fs_free_generic_bitmap(ext2fs_inode_bitmap bitmap); | |
756 | extern errcode_t ext2fs_make_generic_bitmap(errcode_t magic, ext2_filsys fs, | |
757 | __u32 start, __u32 end, | |
758 | __u32 real_end, | |
759 | const char *descr, char *init_map, | |
760 | ext2fs_generic_bitmap *ret); | |
761 | extern errcode_t ext2fs_allocate_generic_bitmap(__u32 start, | |
762 | __u32 end, | |
763 | __u32 real_end, | |
764 | const char *descr, | |
765 | ext2fs_generic_bitmap *ret); | |
766 | extern errcode_t ext2fs_copy_generic_bitmap(ext2fs_generic_bitmap src, | |
767 | ext2fs_generic_bitmap *dest); | |
768 | extern void ext2fs_clear_generic_bitmap(ext2fs_generic_bitmap bitmap); | |
769 | extern errcode_t ext2fs_fudge_generic_bitmap_end(ext2fs_inode_bitmap bitmap, | |
770 | errcode_t magic, | |
771 | errcode_t neq, | |
772 | ext2_ino_t end, | |
773 | ext2_ino_t *oend); | |
774 | extern void ext2fs_set_generic_bitmap_padding(ext2fs_generic_bitmap map); | |
775 | ||
50e1e10f TT |
776 | /* getsize.c */ |
777 | extern errcode_t ext2fs_get_device_size(const char *file, int blocksize, | |
778 | blk_t *retblocks); | |
3839e657 | 779 | |
93d5c387 TT |
780 | /* getsectsize.c */ |
781 | errcode_t ext2fs_get_device_sectsize(const char *file, int *sectsize); | |
782 | ||
72ed1264 TT |
783 | /* imager.c */ |
784 | extern errcode_t ext2fs_image_inode_write(ext2_filsys fs, int fd, int flags); | |
785 | extern errcode_t ext2fs_image_inode_read(ext2_filsys fs, int fd, int flags); | |
786 | extern errcode_t ext2fs_image_super_write(ext2_filsys fs, int fd, int flags); | |
787 | extern errcode_t ext2fs_image_super_read(ext2_filsys fs, int fd, int flags); | |
788 | extern errcode_t ext2fs_image_bitmap_write(ext2_filsys fs, int fd, int flags); | |
789 | extern errcode_t ext2fs_image_bitmap_read(ext2_filsys fs, int fd, int flags); | |
790 | ||
dc8ce346 TT |
791 | /* ind_block.c */ |
792 | errcode_t ext2fs_read_ind_block(ext2_filsys fs, blk_t blk, void *buf); | |
793 | errcode_t ext2fs_write_ind_block(ext2_filsys fs, blk_t blk, void *buf); | |
794 | ||
3839e657 TT |
795 | /* initialize.c */ |
796 | extern errcode_t ext2fs_initialize(const char *name, int flags, | |
797 | struct ext2_super_block *param, | |
798 | io_manager manager, ext2_filsys *ret_fs); | |
799 | ||
f12e285f TT |
800 | /* icount.c */ |
801 | extern void ext2fs_free_icount(ext2_icount_t icount); | |
1b9d8cb7 TT |
802 | extern errcode_t ext2fs_create_icount_tdb(ext2_filsys fs, char *tdb_dir, |
803 | int flags, ext2_icount_t *ret); | |
54434927 TT |
804 | extern errcode_t ext2fs_create_icount2(ext2_filsys fs, int flags, |
805 | unsigned int size, | |
f12e285f | 806 | ext2_icount_t hint, ext2_icount_t *ret); |
54434927 TT |
807 | extern errcode_t ext2fs_create_icount(ext2_filsys fs, int flags, |
808 | unsigned int size, | |
f12e285f TT |
809 | ext2_icount_t *ret); |
810 | extern errcode_t ext2fs_icount_fetch(ext2_icount_t icount, ext2_ino_t ino, | |
811 | __u16 *ret); | |
812 | extern errcode_t ext2fs_icount_increment(ext2_icount_t icount, ext2_ino_t ino, | |
813 | __u16 *ret); | |
814 | extern errcode_t ext2fs_icount_decrement(ext2_icount_t icount, ext2_ino_t ino, | |
815 | __u16 *ret); | |
816 | extern errcode_t ext2fs_icount_store(ext2_icount_t icount, ext2_ino_t ino, | |
817 | __u16 count); | |
818 | extern ext2_ino_t ext2fs_get_icount_size(ext2_icount_t icount); | |
819 | errcode_t ext2fs_icount_validate(ext2_icount_t icount, FILE *); | |
820 | ||
3839e657 | 821 | /* inode.c */ |
72ed1264 | 822 | extern errcode_t ext2fs_flush_icache(ext2_filsys fs); |
7331196a TT |
823 | extern errcode_t ext2fs_get_next_inode_full(ext2_inode_scan scan, |
824 | ext2_ino_t *ino, | |
825 | struct ext2_inode *inode, | |
826 | int bufsize); | |
3839e657 TT |
827 | extern errcode_t ext2fs_open_inode_scan(ext2_filsys fs, int buffer_blocks, |
828 | ext2_inode_scan *ret_scan); | |
829 | extern void ext2fs_close_inode_scan(ext2_inode_scan scan); | |
31dbecd4 | 830 | extern errcode_t ext2fs_get_next_inode(ext2_inode_scan scan, ext2_ino_t *ino, |
3839e657 | 831 | struct ext2_inode *inode); |
19c78dc0 TT |
832 | extern errcode_t ext2fs_inode_scan_goto_blockgroup(ext2_inode_scan scan, |
833 | int group); | |
834 | extern void ext2fs_set_inode_callback | |
835 | (ext2_inode_scan scan, | |
836 | errcode_t (*done_group)(ext2_filsys fs, | |
837 | ext2_inode_scan scan, | |
838 | dgrp_t group, | |
b5abe6fa | 839 | void * priv_data), |
19c78dc0 TT |
840 | void *done_group_data); |
841 | extern int ext2fs_inode_scan_flags(ext2_inode_scan scan, int set_flags, | |
842 | int clear_flags); | |
7331196a TT |
843 | extern errcode_t ext2fs_read_inode_full(ext2_filsys fs, ext2_ino_t ino, |
844 | struct ext2_inode * inode, | |
845 | int bufsize); | |
31dbecd4 | 846 | extern errcode_t ext2fs_read_inode (ext2_filsys fs, ext2_ino_t ino, |
3839e657 | 847 | struct ext2_inode * inode); |
7331196a TT |
848 | extern errcode_t ext2fs_write_inode_full(ext2_filsys fs, ext2_ino_t ino, |
849 | struct ext2_inode * inode, | |
850 | int bufsize); | |
31dbecd4 | 851 | extern errcode_t ext2fs_write_inode(ext2_filsys fs, ext2_ino_t ino, |
3839e657 | 852 | struct ext2_inode * inode); |
030970ed TT |
853 | extern errcode_t ext2fs_write_new_inode(ext2_filsys fs, ext2_ino_t ino, |
854 | struct ext2_inode * inode); | |
31dbecd4 TT |
855 | extern errcode_t ext2fs_get_blocks(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks); |
856 | extern errcode_t ext2fs_check_directory(ext2_filsys fs, ext2_ino_t ino); | |
3839e657 | 857 | |
f12e285f TT |
858 | /* inode_io.c */ |
859 | extern io_manager inode_io_manager; | |
546a1ff1 TT |
860 | extern errcode_t ext2fs_inode_io_intern(ext2_filsys fs, ext2_ino_t ino, |
861 | char **name); | |
a435ec34 TT |
862 | extern errcode_t ext2fs_inode_io_intern2(ext2_filsys fs, ext2_ino_t ino, |
863 | struct ext2_inode *inode, | |
864 | char **name); | |
f12e285f | 865 | |
50e1e10f TT |
866 | /* ismounted.c */ |
867 | extern errcode_t ext2fs_check_if_mounted(const char *file, int *mount_flags); | |
43ec8734 TT |
868 | extern errcode_t ext2fs_check_mount_point(const char *device, int *mount_flags, |
869 | char *mtpt, int mtlen); | |
50e1e10f | 870 | |
3839e657 | 871 | /* namei.c */ |
31dbecd4 TT |
872 | extern errcode_t ext2fs_lookup(ext2_filsys fs, ext2_ino_t dir, const char *name, |
873 | int namelen, char *buf, ext2_ino_t *inode); | |
874 | extern errcode_t ext2fs_namei(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd, | |
875 | const char *name, ext2_ino_t *inode); | |
876 | errcode_t ext2fs_namei_follow(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd, | |
877 | const char *name, ext2_ino_t *inode); | |
878 | extern errcode_t ext2fs_follow_link(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd, | |
879 | ext2_ino_t inode, ext2_ino_t *res_inode); | |
1e3472c5 TT |
880 | |
881 | /* native.c */ | |
882 | int ext2fs_native_flag(void); | |
3839e657 TT |
883 | |
884 | /* newdir.c */ | |
31dbecd4 TT |
885 | extern errcode_t ext2fs_new_dir_block(ext2_filsys fs, ext2_ino_t dir_ino, |
886 | ext2_ino_t parent_ino, char **block); | |
3839e657 TT |
887 | |
888 | /* mkdir.c */ | |
31dbecd4 | 889 | extern errcode_t ext2fs_mkdir(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t inum, |
3839e657 TT |
890 | const char *name); |
891 | ||
d3cd93ca | 892 | /* mkjournal.c */ |
a112847b TT |
893 | extern errcode_t ext2fs_create_journal_superblock(ext2_filsys fs, |
894 | __u32 size, int flags, | |
895 | char **ret_jsb); | |
896 | extern errcode_t ext2fs_add_journal_device(ext2_filsys fs, | |
897 | ext2_filsys journal_dev); | |
31a17b36 TT |
898 | extern errcode_t ext2fs_add_journal_inode(ext2_filsys fs, blk_t size, |
899 | int flags); | |
56d12367 | 900 | extern int ext2fs_default_journal_size(__u64 blocks); |
d3cd93ca | 901 | |
3839e657 TT |
902 | /* openfs.c */ |
903 | extern errcode_t ext2fs_open(const char *name, int flags, int superblock, | |
54434927 | 904 | unsigned int block_size, io_manager manager, |
3839e657 | 905 | ext2_filsys *ret_fs); |
2e8ca9a2 TT |
906 | extern errcode_t ext2fs_open2(const char *name, const char *io_options, |
907 | int flags, int superblock, | |
908 | unsigned int block_size, io_manager manager, | |
909 | ext2_filsys *ret_fs); | |
c046ac7f TT |
910 | extern blk_t ext2fs_descriptor_block_loc(ext2_filsys fs, blk_t group_block, |
911 | dgrp_t i); | |
1ad54a94 TT |
912 | errcode_t ext2fs_get_data_io(ext2_filsys fs, io_channel *old_io); |
913 | errcode_t ext2fs_set_data_io(ext2_filsys fs, io_channel new_io); | |
914 | errcode_t ext2fs_rewrite_to_io(ext2_filsys fs, io_channel new_io); | |
3839e657 TT |
915 | |
916 | /* get_pathname.c */ | |
31dbecd4 | 917 | extern errcode_t ext2fs_get_pathname(ext2_filsys fs, ext2_ino_t dir, ext2_ino_t ino, |
3839e657 TT |
918 | char **name); |
919 | ||
920 | /* link.c */ | |
31dbecd4 TT |
921 | errcode_t ext2fs_link(ext2_filsys fs, ext2_ino_t dir, const char *name, |
922 | ext2_ino_t ino, int flags); | |
923 | errcode_t ext2fs_unlink(ext2_filsys fs, ext2_ino_t dir, const char *name, | |
924 | ext2_ino_t ino, int flags); | |
3839e657 TT |
925 | |
926 | /* read_bb.c */ | |
19c78dc0 TT |
927 | extern errcode_t ext2fs_read_bb_inode(ext2_filsys fs, |
928 | ext2_badblocks_list *bb_list); | |
3839e657 TT |
929 | |
930 | /* read_bb_file.c */ | |
57dca854 TT |
931 | extern errcode_t ext2fs_read_bb_FILE2(ext2_filsys fs, FILE *f, |
932 | ext2_badblocks_list *bb_list, | |
50cd7e06 | 933 | void *priv_data, |
57dca854 TT |
934 | void (*invalid)(ext2_filsys fs, |
935 | blk_t blk, | |
936 | char *badstr, | |
50cd7e06 | 937 | void *priv_data)); |
3839e657 | 938 | extern errcode_t ext2fs_read_bb_FILE(ext2_filsys fs, FILE *f, |
19c78dc0 | 939 | ext2_badblocks_list *bb_list, |
3839e657 TT |
940 | void (*invalid)(ext2_filsys fs, |
941 | blk_t blk)); | |
942 | ||
d323f8fb TT |
943 | /* res_gdt.c */ |
944 | extern errcode_t ext2fs_create_resize_inode(ext2_filsys fs); | |
945 | ||
19c78dc0 TT |
946 | /* rs_bitmap.c */ |
947 | extern errcode_t ext2fs_resize_generic_bitmap(__u32 new_end, | |
948 | __u32 new_real_end, | |
949 | ext2fs_generic_bitmap bmap); | |
950 | extern errcode_t ext2fs_resize_inode_bitmap(__u32 new_end, __u32 new_real_end, | |
951 | ext2fs_inode_bitmap bmap); | |
952 | extern errcode_t ext2fs_resize_block_bitmap(__u32 new_end, __u32 new_real_end, | |
953 | ext2fs_block_bitmap bmap); | |
a29f4d30 TT |
954 | extern errcode_t ext2fs_copy_bitmap(ext2fs_generic_bitmap src, |
955 | ext2fs_generic_bitmap *dest); | |
19c78dc0 | 956 | |
50e1e10f | 957 | /* swapfs.c */ |
7331196a TT |
958 | extern void ext2fs_swap_ext_attr(char *to, char *from, int bufsize, |
959 | int has_header); | |
50e1e10f TT |
960 | extern void ext2fs_swap_super(struct ext2_super_block * super); |
961 | extern void ext2fs_swap_group_desc(struct ext2_group_desc *gdp); | |
7331196a TT |
962 | extern void ext2fs_swap_inode_full(ext2_filsys fs, struct ext2_inode_large *t, |
963 | struct ext2_inode_large *f, int hostorder, | |
964 | int bufsize); | |
1e3472c5 TT |
965 | extern void ext2fs_swap_inode(ext2_filsys fs,struct ext2_inode *t, |
966 | struct ext2_inode *f, int hostorder); | |
967 | ||
19c78dc0 | 968 | /* valid_blk.c */ |
521e3685 TT |
969 | extern int ext2fs_inode_has_valid_blocks(struct ext2_inode *inode); |
970 | ||
971 | /* version.c */ | |
972 | extern int ext2fs_parse_version_string(const char *ver_string); | |
973 | extern int ext2fs_get_library_version(const char **ver_string, | |
974 | const char **date_string); | |
50e1e10f | 975 | |
31dbecd4 TT |
976 | /* write_bb_file.c */ |
977 | extern errcode_t ext2fs_write_bb_FILE(ext2_badblocks_list bb_list, | |
978 | unsigned int flags, | |
979 | FILE *f); | |
980 | ||
981 | ||
3839e657 | 982 | /* inline functions */ |
c4e3d3f3 TT |
983 | extern errcode_t ext2fs_get_mem(unsigned long size, void *ptr); |
984 | extern errcode_t ext2fs_free_mem(void *ptr); | |
76f875da | 985 | extern errcode_t ext2fs_resize_mem(unsigned long old_size, |
c4e3d3f3 | 986 | unsigned long size, void *ptr); |
3839e657 TT |
987 | extern void ext2fs_mark_super_dirty(ext2_filsys fs); |
988 | extern void ext2fs_mark_changed(ext2_filsys fs); | |
989 | extern int ext2fs_test_changed(ext2_filsys fs); | |
990 | extern void ext2fs_mark_valid(ext2_filsys fs); | |
991 | extern void ext2fs_unmark_valid(ext2_filsys fs); | |
992 | extern int ext2fs_test_valid(ext2_filsys fs); | |
993 | extern void ext2fs_mark_ib_dirty(ext2_filsys fs); | |
994 | extern void ext2fs_mark_bb_dirty(ext2_filsys fs); | |
995 | extern int ext2fs_test_ib_dirty(ext2_filsys fs); | |
996 | extern int ext2fs_test_bb_dirty(ext2_filsys fs); | |
997 | extern int ext2fs_group_of_blk(ext2_filsys fs, blk_t blk); | |
31dbecd4 | 998 | extern int ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino); |
abf23439 ES |
999 | extern blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group); |
1000 | extern blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group); | |
0684a4f3 TT |
1001 | extern blk_t ext2fs_inode_data_blocks(ext2_filsys fs, |
1002 | struct ext2_inode *inode); | |
69022e02 | 1003 | extern unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b); |
3839e657 TT |
1004 | |
1005 | /* | |
1006 | * The actual inlined functions definitions themselves... | |
1007 | * | |
1008 | * If NO_INLINE_FUNCS is defined, then we won't try to do inline | |
1009 | * functions at all! | |
1010 | */ | |
1011 | #if (defined(INCLUDE_INLINE_FUNCS) || !defined(NO_INLINE_FUNCS)) | |
1012 | #ifdef INCLUDE_INLINE_FUNCS | |
1013 | #define _INLINE_ extern | |
1014 | #else | |
76f875da | 1015 | #ifdef __GNUC__ |
3839e657 | 1016 | #define _INLINE_ extern __inline__ |
76f875da TT |
1017 | #else /* For Watcom C */ |
1018 | #define _INLINE_ extern inline | |
1019 | #endif | |
3839e657 TT |
1020 | #endif |
1021 | ||
7b4e4534 | 1022 | #ifndef EXT2_CUSTOM_MEMORY_ROUTINES |
68a7f959 | 1023 | #include <string.h> |
7b4e4534 TT |
1024 | /* |
1025 | * Allocate memory | |
1026 | */ | |
c4e3d3f3 | 1027 | _INLINE_ errcode_t ext2fs_get_mem(unsigned long size, void *ptr) |
7b4e4534 | 1028 | { |
2694f319 | 1029 | void *pp; |
c4e3d3f3 | 1030 | |
2694f319 TT |
1031 | pp = malloc(size); |
1032 | if (!pp) | |
291c9049 | 1033 | return EXT2_ET_NO_MEMORY; |
2694f319 | 1034 | memcpy(ptr, &pp, sizeof (pp)); |
7b4e4534 TT |
1035 | return 0; |
1036 | } | |
1037 | ||
1038 | /* | |
1039 | * Free memory | |
1040 | */ | |
c4e3d3f3 | 1041 | _INLINE_ errcode_t ext2fs_free_mem(void *ptr) |
7b4e4534 | 1042 | { |
2694f319 | 1043 | void *p; |
c4e3d3f3 | 1044 | |
2694f319 TT |
1045 | memcpy(&p, ptr, sizeof(p)); |
1046 | free(p); | |
1047 | p = 0; | |
1048 | memcpy(ptr, &p, sizeof(p)); | |
7b4e4534 TT |
1049 | return 0; |
1050 | } | |
1051 | ||
1052 | /* | |
1053 | * Resize memory | |
1054 | */ | |
e47fd841 | 1055 | _INLINE_ errcode_t ext2fs_resize_mem(unsigned long EXT2FS_ATTR((unused)) old_size, |
c4e3d3f3 | 1056 | unsigned long size, void *ptr) |
7b4e4534 TT |
1057 | { |
1058 | void *p; | |
1059 | ||
39c191f5 ST |
1060 | /* Use "memcpy" for pointer assignments here to avoid problems |
1061 | * with C99 strict type aliasing rules. */ | |
2694f319 | 1062 | memcpy(&p, ptr, sizeof(p)); |
39c191f5 | 1063 | p = realloc(p, size); |
7b4e4534 | 1064 | if (!p) |
291c9049 | 1065 | return EXT2_ET_NO_MEMORY; |
2694f319 | 1066 | memcpy(ptr, &p, sizeof(p)); |
7b4e4534 TT |
1067 | return 0; |
1068 | } | |
1069 | #endif /* Custom memory routines */ | |
1070 | ||
3839e657 TT |
1071 | /* |
1072 | * Mark a filesystem superblock as dirty | |
1073 | */ | |
1074 | _INLINE_ void ext2fs_mark_super_dirty(ext2_filsys fs) | |
1075 | { | |
1076 | fs->flags |= EXT2_FLAG_DIRTY | EXT2_FLAG_CHANGED; | |
1077 | } | |
1078 | ||
1079 | /* | |
1080 | * Mark a filesystem as changed | |
1081 | */ | |
1082 | _INLINE_ void ext2fs_mark_changed(ext2_filsys fs) | |
1083 | { | |
1084 | fs->flags |= EXT2_FLAG_CHANGED; | |
1085 | } | |
1086 | ||
1087 | /* | |
1088 | * Check to see if a filesystem has changed | |
1089 | */ | |
1090 | _INLINE_ int ext2fs_test_changed(ext2_filsys fs) | |
1091 | { | |
1092 | return (fs->flags & EXT2_FLAG_CHANGED); | |
1093 | } | |
1094 | ||
1095 | /* | |
1096 | * Mark a filesystem as valid | |
1097 | */ | |
1098 | _INLINE_ void ext2fs_mark_valid(ext2_filsys fs) | |
1099 | { | |
1100 | fs->flags |= EXT2_FLAG_VALID; | |
1101 | } | |
1102 | ||
1103 | /* | |
1104 | * Mark a filesystem as NOT valid | |
1105 | */ | |
1106 | _INLINE_ void ext2fs_unmark_valid(ext2_filsys fs) | |
1107 | { | |
1108 | fs->flags &= ~EXT2_FLAG_VALID; | |
1109 | } | |
1110 | ||
1111 | /* | |
1112 | * Check to see if a filesystem is valid | |
1113 | */ | |
1114 | _INLINE_ int ext2fs_test_valid(ext2_filsys fs) | |
1115 | { | |
1116 | return (fs->flags & EXT2_FLAG_VALID); | |
1117 | } | |
1118 | ||
1119 | /* | |
1120 | * Mark the inode bitmap as dirty | |
1121 | */ | |
1122 | _INLINE_ void ext2fs_mark_ib_dirty(ext2_filsys fs) | |
1123 | { | |
1124 | fs->flags |= EXT2_FLAG_IB_DIRTY | EXT2_FLAG_CHANGED; | |
1125 | } | |
1126 | ||
1127 | /* | |
1128 | * Mark the block bitmap as dirty | |
1129 | */ | |
1130 | _INLINE_ void ext2fs_mark_bb_dirty(ext2_filsys fs) | |
1131 | { | |
1132 | fs->flags |= EXT2_FLAG_BB_DIRTY | EXT2_FLAG_CHANGED; | |
1133 | } | |
1134 | ||
1135 | /* | |
1136 | * Check to see if a filesystem's inode bitmap is dirty | |
1137 | */ | |
1138 | _INLINE_ int ext2fs_test_ib_dirty(ext2_filsys fs) | |
1139 | { | |
1140 | return (fs->flags & EXT2_FLAG_IB_DIRTY); | |
1141 | } | |
1142 | ||
1143 | /* | |
1144 | * Check to see if a filesystem's block bitmap is dirty | |
1145 | */ | |
1146 | _INLINE_ int ext2fs_test_bb_dirty(ext2_filsys fs) | |
1147 | { | |
1148 | return (fs->flags & EXT2_FLAG_BB_DIRTY); | |
1149 | } | |
1150 | ||
1151 | /* | |
1152 | * Return the group # of a block | |
1153 | */ | |
1154 | _INLINE_ int ext2fs_group_of_blk(ext2_filsys fs, blk_t blk) | |
1155 | { | |
1156 | return (blk - fs->super->s_first_data_block) / | |
1157 | fs->super->s_blocks_per_group; | |
1158 | } | |
1159 | ||
1160 | /* | |
1161 | * Return the group # of an inode number | |
1162 | */ | |
31dbecd4 | 1163 | _INLINE_ int ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino) |
3839e657 TT |
1164 | { |
1165 | return (ino - 1) / fs->super->s_inodes_per_group; | |
1166 | } | |
0684a4f3 | 1167 | |
abf23439 ES |
1168 | /* |
1169 | * Return the first block (inclusive) in a group | |
1170 | */ | |
1171 | _INLINE_ blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group) | |
1172 | { | |
1173 | return fs->super->s_first_data_block + | |
1174 | (group * fs->super->s_blocks_per_group); | |
1175 | } | |
1176 | ||
1177 | /* | |
1178 | * Return the last block (inclusive) in a group | |
1179 | */ | |
1180 | _INLINE_ blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group) | |
1181 | { | |
1182 | return (group == fs->group_desc_count - 1 ? | |
1183 | fs->super->s_blocks_count - 1 : | |
1184 | ext2fs_group_first_block(fs, group) + | |
1185 | (fs->super->s_blocks_per_group - 1)); | |
1186 | } | |
1187 | ||
0684a4f3 TT |
1188 | _INLINE_ blk_t ext2fs_inode_data_blocks(ext2_filsys fs, |
1189 | struct ext2_inode *inode) | |
1190 | { | |
1191 | return inode->i_blocks - | |
1192 | (inode->i_file_acl ? fs->blocksize >> 9 : 0); | |
1193 | } | |
69022e02 TT |
1194 | |
1195 | /* | |
1196 | * This is an efficient, overflow safe way of calculating ceil((1.0 * a) / b) | |
1197 | */ | |
1198 | _INLINE_ unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b) | |
1199 | { | |
1200 | if (!a) | |
1201 | return 0; | |
1202 | return ((a - 1) / b) + 1; | |
1203 | } | |
3839e657 TT |
1204 | #undef _INLINE_ |
1205 | #endif | |
1206 | ||
fa7ef717 TT |
1207 | #ifdef __cplusplus |
1208 | } | |
1209 | #endif | |
1210 | ||
9abd2ce9 | 1211 | #endif /* _EXT2FS_EXT2FS_H */ |