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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 | ||
3839e657 TT |
32 | /* |
33 | * Where the master copy of the superblock is located, and how big | |
34 | * superblocks are supposed to be. We define SUPERBLOCK_SIZE because | |
35 | * the size of the superblock structure is not necessarily trustworthy | |
36 | * (some versions have the padding set up so that the superblock is | |
37 | * 1032 bytes long). | |
38 | */ | |
39 | #define SUPERBLOCK_OFFSET 1024 | |
40 | #define SUPERBLOCK_SIZE 1024 | |
41 | ||
f3db3566 TT |
42 | /* |
43 | * The last ext2fs revision level that this version of the library is | |
44 | * able to support. | |
45 | */ | |
e5b38a5f | 46 | #define EXT2_LIB_CURRENT_REV EXT2_DYNAMIC_REV |
f3db3566 | 47 | |
d40259fd | 48 | #ifdef HAVE_SYS_TYPES_H |
1e3472c5 | 49 | #include <sys/types.h> |
d40259fd TT |
50 | #endif |
51 | ||
3e699064 | 52 | #include <stdio.h> |
5be8dc21 | 53 | #include <stdlib.h> |
a82a5702 | 54 | #include <string.h> |
5953b9de TT |
55 | |
56 | #if EXT2_FLAT_INCLUDES | |
57 | #include "e2_types.h" | |
3e699064 | 58 | #include "ext2_fs.h" |
89dd6570 | 59 | #include "ext3_extents.h" |
5953b9de | 60 | #else |
797f5ef1 | 61 | #include <ext2fs/ext2_types.h> |
3e699064 | 62 | #include <ext2fs/ext2_fs.h> |
89dd6570 | 63 | #include <ext2fs/ext3_extents.h> |
e589f678 | 64 | #endif /* EXT2_FLAT_INCLUDES */ |
50e1e10f | 65 | |
31dbecd4 | 66 | typedef __u32 ext2_ino_t; |
50e1e10f | 67 | typedef __u32 blk_t; |
eac91b35 | 68 | typedef __u64 blk64_t; |
2eb374c9 | 69 | typedef __u32 dgrp_t; |
30fab293 | 70 | typedef __u32 ext2_off_t; |
03673dbb | 71 | typedef __s64 e2_blkcnt_t; |
52783e0c | 72 | typedef __u32 ext2_dirhash_t; |
3839e657 | 73 | |
b5abe6fa TT |
74 | #if EXT2_FLAT_INCLUDES |
75 | #include "com_err.h" | |
76 | #include "ext2_io.h" | |
77 | #include "ext2_err.h" | |
78 | #else | |
7c2d2569 TT |
79 | #include <et/com_err.h> |
80 | #include <ext2fs/ext2_io.h> | |
81 | #include <ext2fs/ext2_err.h> | |
b5abe6fa | 82 | #endif |
3839e657 | 83 | |
4c77fe50 TT |
84 | /* |
85 | * Portability help for Microsoft Visual C++ | |
86 | */ | |
87 | #ifdef _MSC_VER | |
88 | #define EXT2_QSORT_TYPE int __cdecl | |
89 | #else | |
90 | #define EXT2_QSORT_TYPE int | |
91 | #endif | |
92 | ||
f3db3566 TT |
93 | typedef struct struct_ext2_filsys *ext2_filsys; |
94 | ||
1e3472c5 TT |
95 | #define EXT2FS_MARK_ERROR 0 |
96 | #define EXT2FS_UNMARK_ERROR 1 | |
97 | #define EXT2FS_TEST_ERROR 2 | |
f3db3566 | 98 | |
1e3472c5 | 99 | typedef struct ext2fs_struct_generic_bitmap *ext2fs_generic_bitmap; |
1e3472c5 | 100 | typedef struct ext2fs_struct_generic_bitmap *ext2fs_inode_bitmap; |
1e3472c5 | 101 | typedef struct ext2fs_struct_generic_bitmap *ext2fs_block_bitmap; |
f3db3566 | 102 | |
7f88b043 | 103 | #define EXT2_FIRST_INODE(s) EXT2_FIRST_INO(s) |
067911ae | 104 | |
7f88b043 | 105 | |
19c78dc0 | 106 | /* |
067911ae | 107 | * Badblocks list definitions |
19c78dc0 TT |
108 | */ |
109 | ||
b7a00563 TT |
110 | typedef struct ext2_struct_u32_list *ext2_badblocks_list; |
111 | typedef struct ext2_struct_u32_iterate *ext2_badblocks_iterate; | |
112 | ||
113 | typedef struct ext2_struct_u32_list *ext2_u32_list; | |
114 | typedef struct ext2_struct_u32_iterate *ext2_u32_iterate; | |
19c78dc0 TT |
115 | |
116 | /* old */ | |
b7a00563 TT |
117 | typedef struct ext2_struct_u32_list *badblocks_list; |
118 | typedef struct ext2_struct_u32_iterate *badblocks_iterate; | |
19c78dc0 TT |
119 | |
120 | #define BADBLOCKS_FLAG_DIRTY 1 | |
121 | ||
122 | /* | |
123 | * ext2_dblist structure and abstractions (see dblist.c) | |
124 | */ | |
125 | struct ext2_db_entry { | |
31dbecd4 | 126 | ext2_ino_t ino; |
19c78dc0 TT |
127 | blk_t blk; |
128 | int blockcnt; | |
129 | }; | |
130 | ||
131 | typedef struct ext2_struct_dblist *ext2_dblist; | |
132 | ||
133 | #define DBLIST_ABORT 1 | |
134 | ||
30fab293 TT |
135 | /* |
136 | * ext2_fileio definitions | |
137 | */ | |
138 | ||
139 | #define EXT2_FILE_WRITE 0x0001 | |
140 | #define EXT2_FILE_CREATE 0x0002 | |
141 | ||
142 | #define EXT2_FILE_MASK 0x00FF | |
143 | ||
144 | #define EXT2_FILE_BUF_DIRTY 0x4000 | |
145 | #define EXT2_FILE_BUF_VALID 0x2000 | |
146 | ||
147 | typedef struct ext2_file *ext2_file_t; | |
148 | ||
149 | #define EXT2_SEEK_SET 0 | |
150 | #define EXT2_SEEK_CUR 1 | |
151 | #define EXT2_SEEK_END 2 | |
152 | ||
3839e657 | 153 | /* |
a112847b | 154 | * Flags for the ext2_filsys structure and for ext2fs_open() |
3839e657 | 155 | */ |
19c78dc0 TT |
156 | #define EXT2_FLAG_RW 0x01 |
157 | #define EXT2_FLAG_CHANGED 0x02 | |
158 | #define EXT2_FLAG_DIRTY 0x04 | |
159 | #define EXT2_FLAG_VALID 0x08 | |
160 | #define EXT2_FLAG_IB_DIRTY 0x10 | |
161 | #define EXT2_FLAG_BB_DIRTY 0x20 | |
5c576477 TT |
162 | #define EXT2_FLAG_SWAP_BYTES 0x40 |
163 | #define EXT2_FLAG_SWAP_BYTES_READ 0x80 | |
164 | #define EXT2_FLAG_SWAP_BYTES_WRITE 0x100 | |
165 | #define EXT2_FLAG_MASTER_SB_ONLY 0x200 | |
19c78dc0 | 166 | #define EXT2_FLAG_FORCE 0x400 |
43ec8734 | 167 | #define EXT2_FLAG_SUPER_ONLY 0x800 |
a112847b | 168 | #define EXT2_FLAG_JOURNAL_DEV_OK 0x1000 |
a78926ef | 169 | #define EXT2_FLAG_IMAGE_FILE 0x2000 |
39c47ce6 | 170 | #define EXT2_FLAG_EXCLUSIVE 0x4000 |
cf8272e1 | 171 | #define EXT2_FLAG_SOFTSUPP_FEATURES 0x8000 |
3839e657 | 172 | |
7f88b043 TT |
173 | /* |
174 | * Special flag in the ext2 inode i_flag field that means that this is | |
175 | * a new inode. (So that ext2_write_inode() can clear extra fields.) | |
176 | */ | |
177 | #define EXT2_NEW_INODE_FL 0x80000000 | |
178 | ||
4e246704 TT |
179 | /* |
180 | * Flags for mkjournal | |
181 | * | |
182 | * EXT2_MKJOURNAL_V1_SUPER Make a (deprecated) V1 journal superblock | |
183 | */ | |
184 | #define EXT2_MKJOURNAL_V1_SUPER 0x0000001 | |
185 | ||
3839e657 | 186 | struct struct_ext2_filsys { |
4cbe8af4 | 187 | errcode_t magic; |
3839e657 TT |
188 | io_channel io; |
189 | int flags; | |
190 | char * device_name; | |
191 | struct ext2_super_block * super; | |
54434927 | 192 | unsigned int blocksize; |
3839e657 | 193 | int fragsize; |
2eb374c9 | 194 | dgrp_t group_desc_count; |
3839e657 TT |
195 | unsigned long desc_blocks; |
196 | struct ext2_group_desc * group_desc; | |
197 | int inode_blocks_per_group; | |
f3db3566 TT |
198 | ext2fs_inode_bitmap inode_map; |
199 | ext2fs_block_bitmap block_map; | |
31dbecd4 TT |
200 | errcode_t (*get_blocks)(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks); |
201 | errcode_t (*check_directory)(ext2_filsys fs, ext2_ino_t ino); | |
3839e657 | 202 | errcode_t (*write_bitmaps)(ext2_filsys fs); |
31dbecd4 | 203 | errcode_t (*read_inode)(ext2_filsys fs, ext2_ino_t ino, |
1e3472c5 | 204 | struct ext2_inode *inode); |
31dbecd4 | 205 | errcode_t (*write_inode)(ext2_filsys fs, ext2_ino_t ino, |
1e3472c5 | 206 | struct ext2_inode *inode); |
b7a00563 | 207 | ext2_badblocks_list badblocks; |
19c78dc0 | 208 | ext2_dblist dblist; |
a29f4d30 | 209 | __u32 stride; /* for mke2fs */ |
c180ac86 | 210 | struct ext2_super_block * orig_super; |
a78926ef | 211 | struct ext2_image_hdr * image_header; |
6a525069 | 212 | __u32 umask; |
9b9a780f | 213 | time_t now; |
19c78dc0 TT |
214 | /* |
215 | * Reserved for future expansion | |
216 | */ | |
32138187 | 217 | __u32 reserved[7]; |
3839e657 TT |
218 | |
219 | /* | |
a29f4d30 | 220 | * Reserved for the use of the calling application. |
3839e657 | 221 | */ |
b5abe6fa | 222 | void * priv_data; |
a29f4d30 TT |
223 | |
224 | /* | |
225 | * Inode cache | |
226 | */ | |
227 | struct ext2_inode_cache *icache; | |
1ad54a94 | 228 | io_channel image_io; |
3839e657 TT |
229 | }; |
230 | ||
5953b9de TT |
231 | #if EXT2_FLAT_INCLUDES |
232 | #include "e2_bitops.h" | |
233 | #else | |
7c2d2569 | 234 | #include <ext2fs/bitops.h> |
5953b9de | 235 | #endif |
d40259fd | 236 | |
3839e657 TT |
237 | /* |
238 | * Return flags for the block iterator functions | |
239 | */ | |
240 | #define BLOCK_CHANGED 1 | |
241 | #define BLOCK_ABORT 2 | |
242 | #define BLOCK_ERROR 4 | |
243 | ||
244 | /* | |
245 | * Block interate flags | |
50e1e10f TT |
246 | * |
247 | * BLOCK_FLAG_APPEND, or BLOCK_FLAG_HOLE, indicates that the interator | |
248 | * function should be called on blocks where the block number is zero. | |
249 | * This is used by ext2fs_expand_dir() to be able to add a new block | |
250 | * to an inode. It can also be used for programs that want to be able | |
251 | * to deal with files that contain "holes". | |
252 | * | |
7447921d TT |
253 | * BLOCK_FLAG_DEPTH_TRAVERSE indicates that the iterator function for |
254 | * the indirect, doubly indirect, etc. blocks should be called after | |
255 | * all of the blocks containined in the indirect blocks are processed. | |
50e1e10f TT |
256 | * This is useful if you are going to be deallocating blocks from an |
257 | * inode. | |
1e3472c5 TT |
258 | * |
259 | * BLOCK_FLAG_DATA_ONLY indicates that the iterator function should be | |
260 | * called for data blocks only. | |
674a4ee1 TT |
261 | * |
262 | * BLOCK_FLAG_NO_LARGE is for internal use only. It informs | |
36a43d67 | 263 | * ext2fs_block_iterate2 that large files won't be accepted. |
3839e657 TT |
264 | */ |
265 | #define BLOCK_FLAG_APPEND 1 | |
50e1e10f | 266 | #define BLOCK_FLAG_HOLE 1 |
3839e657 | 267 | #define BLOCK_FLAG_DEPTH_TRAVERSE 2 |
1e3472c5 TT |
268 | #define BLOCK_FLAG_DATA_ONLY 4 |
269 | ||
674a4ee1 TT |
270 | #define BLOCK_FLAG_NO_LARGE 0x1000 |
271 | ||
1e3472c5 TT |
272 | /* |
273 | * Magic "block count" return values for the block iterator function. | |
274 | */ | |
275 | #define BLOCK_COUNT_IND (-1) | |
276 | #define BLOCK_COUNT_DIND (-2) | |
277 | #define BLOCK_COUNT_TIND (-3) | |
278 | #define BLOCK_COUNT_TRANSLATOR (-4) | |
3839e657 | 279 | |
4a31c48b | 280 | #if 0 |
1e1da29f TT |
281 | /* |
282 | * Flags for ext2fs_move_blocks | |
283 | */ | |
284 | #define EXT2_BMOVE_GET_DBLIST 0x0001 | |
36f21439 | 285 | #define EXT2_BMOVE_DEBUG 0x0002 |
4a31c48b | 286 | #endif |
1e1da29f | 287 | |
f9190c8a TT |
288 | /* |
289 | * Flags for directory block reading and writing functions | |
290 | */ | |
291 | #define EXT2_DIRBLOCK_V2_STRUCT 0x0001 | |
292 | ||
3839e657 TT |
293 | /* |
294 | * Return flags for the directory iterator functions | |
295 | */ | |
296 | #define DIRENT_CHANGED 1 | |
297 | #define DIRENT_ABORT 2 | |
298 | #define DIRENT_ERROR 3 | |
299 | ||
300 | /* | |
301 | * Directory iterator flags | |
302 | */ | |
303 | ||
304 | #define DIRENT_FLAG_INCLUDE_EMPTY 1 | |
8bd0c959 | 305 | #define DIRENT_FLAG_INCLUDE_REMOVED 2 |
19c78dc0 TT |
306 | |
307 | #define DIRENT_DOT_FILE 1 | |
308 | #define DIRENT_DOT_DOT_FILE 2 | |
309 | #define DIRENT_OTHER_FILE 3 | |
8bd0c959 | 310 | #define DIRENT_DELETED_FILE 4 |
19c78dc0 | 311 | |
3839e657 TT |
312 | /* |
313 | * Inode scan definitions | |
314 | */ | |
f3db3566 TT |
315 | typedef struct ext2_struct_inode_scan *ext2_inode_scan; |
316 | ||
19c78dc0 TT |
317 | /* |
318 | * ext2fs_scan flags | |
319 | */ | |
320 | #define EXT2_SF_CHK_BADBLOCKS 0x0001 | |
321 | #define EXT2_SF_BAD_INODE_BLK 0x0002 | |
322 | #define EXT2_SF_BAD_EXTRA_BYTES 0x0004 | |
323 | #define EXT2_SF_SKIP_MISSING_ITABLE 0x0008 | |
f5fa2007 | 324 | #define EXT2_SF_DO_LAZY 0x0010 |
3839e657 | 325 | |
50e1e10f TT |
326 | /* |
327 | * ext2fs_check_if_mounted flags | |
328 | */ | |
329 | #define EXT2_MF_MOUNTED 1 | |
330 | #define EXT2_MF_ISROOT 2 | |
19c78dc0 | 331 | #define EXT2_MF_READONLY 4 |
07cefe7a | 332 | #define EXT2_MF_SWAP 8 |
2fa8f37f | 333 | #define EXT2_MF_BUSY 16 |
50e1e10f TT |
334 | |
335 | /* | |
336 | * Ext2/linux mode flags. We define them here so that we don't need | |
337 | * to depend on the OS's sys/stat.h, since we may be compiling on a | |
338 | * non-Linux system. | |
339 | */ | |
340 | #define LINUX_S_IFMT 00170000 | |
341 | #define LINUX_S_IFSOCK 0140000 | |
342 | #define LINUX_S_IFLNK 0120000 | |
343 | #define LINUX_S_IFREG 0100000 | |
344 | #define LINUX_S_IFBLK 0060000 | |
345 | #define LINUX_S_IFDIR 0040000 | |
346 | #define LINUX_S_IFCHR 0020000 | |
347 | #define LINUX_S_IFIFO 0010000 | |
348 | #define LINUX_S_ISUID 0004000 | |
349 | #define LINUX_S_ISGID 0002000 | |
350 | #define LINUX_S_ISVTX 0001000 | |
351 | ||
1e3472c5 TT |
352 | #define LINUX_S_IRWXU 00700 |
353 | #define LINUX_S_IRUSR 00400 | |
354 | #define LINUX_S_IWUSR 00200 | |
355 | #define LINUX_S_IXUSR 00100 | |
356 | ||
357 | #define LINUX_S_IRWXG 00070 | |
358 | #define LINUX_S_IRGRP 00040 | |
359 | #define LINUX_S_IWGRP 00020 | |
360 | #define LINUX_S_IXGRP 00010 | |
361 | ||
362 | #define LINUX_S_IRWXO 00007 | |
363 | #define LINUX_S_IROTH 00004 | |
364 | #define LINUX_S_IWOTH 00002 | |
365 | #define LINUX_S_IXOTH 00001 | |
366 | ||
50e1e10f TT |
367 | #define LINUX_S_ISLNK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFLNK) |
368 | #define LINUX_S_ISREG(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFREG) | |
369 | #define LINUX_S_ISDIR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFDIR) | |
370 | #define LINUX_S_ISCHR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFCHR) | |
371 | #define LINUX_S_ISBLK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFBLK) | |
372 | #define LINUX_S_ISFIFO(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFIFO) | |
373 | #define LINUX_S_ISSOCK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFSOCK) | |
374 | ||
819157db TT |
375 | /* |
376 | * ext2 size of an inode | |
377 | */ | |
378 | #define EXT2_I_SIZE(i) ((i)->i_size | ((__u64) (i)->i_size_high << 32)) | |
379 | ||
19c78dc0 TT |
380 | /* |
381 | * ext2_icount_t abstraction | |
382 | */ | |
383 | #define EXT2_ICOUNT_OPT_INCREMENT 0x01 | |
384 | ||
385 | typedef struct ext2_icount *ext2_icount_t; | |
386 | ||
30fab293 TT |
387 | /* |
388 | * Flags for ext2fs_bmap | |
389 | */ | |
1d667534 TT |
390 | #define BMAP_ALLOC 0x0001 |
391 | #define BMAP_SET 0x0002 | |
30fab293 | 392 | |
72ed1264 TT |
393 | /* |
394 | * Flags for imager.c functions | |
395 | */ | |
396 | #define IMAGER_FLAG_INODEMAP 1 | |
397 | #define IMAGER_FLAG_SPARSEWRITE 2 | |
398 | ||
f3db3566 TT |
399 | /* |
400 | * For checking structure magic numbers... | |
401 | */ | |
3839e657 | 402 | |
f3db3566 TT |
403 | #define EXT2_CHECK_MAGIC(struct, code) \ |
404 | if ((struct)->magic != (code)) return (code) | |
1e3472c5 TT |
405 | |
406 | ||
407 | /* | |
e5b38a5f | 408 | * For ext2 compression support |
1e3472c5 | 409 | */ |
5a63dd28 TT |
410 | #define EXT2FS_COMPRESSED_BLKADDR ((blk_t) 0xffffffff) |
411 | #define HOLE_BLKADDR(_b) ((_b) == 0 || (_b) == EXT2FS_COMPRESSED_BLKADDR) | |
412 | ||
521e3685 | 413 | /* |
426d734f | 414 | * Features supported by this version of the library |
521e3685 | 415 | */ |
3a5f8eaa TT |
416 | #define EXT2_LIB_FEATURE_COMPAT_SUPP (EXT2_FEATURE_COMPAT_DIR_PREALLOC|\ |
417 | EXT2_FEATURE_COMPAT_IMAGIC_INODES|\ | |
342d847d | 418 | EXT3_FEATURE_COMPAT_HAS_JOURNAL|\ |
d323f8fb | 419 | EXT2_FEATURE_COMPAT_RESIZE_INODE|\ |
52783e0c | 420 | EXT2_FEATURE_COMPAT_DIR_INDEX|\ |
f5fa2007 | 421 | EXT2_FEATURE_COMPAT_LAZY_BG|\ |
342d847d | 422 | EXT2_FEATURE_COMPAT_EXT_ATTR) |
2fe1efe2 | 423 | |
5a63dd28 TT |
424 | /* This #ifdef is temporary until compression is fully supported */ |
425 | #ifdef ENABLE_COMPRESSION | |
e589f678 TT |
426 | #ifndef I_KNOW_THAT_COMPRESSION_IS_EXPERIMENTAL |
427 | /* If the below warning bugs you, then have | |
428 | `CPPFLAGS=-DI_KNOW_THAT_COMPRESSION_IS_EXPERIMENTAL' in your | |
429 | environment at configure time. */ | |
cdaf1fa7 | 430 | #warning "Compression support is experimental" |
e589f678 | 431 | #endif |
5a63dd28 | 432 | #define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\ |
ab146766 | 433 | EXT2_FEATURE_INCOMPAT_COMPRESSION|\ |
a112847b | 434 | EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\ |
c046ac7f | 435 | EXT2_FEATURE_INCOMPAT_META_BG|\ |
ab146766 | 436 | EXT3_FEATURE_INCOMPAT_RECOVER) |
5a63dd28 | 437 | #else |
ab146766 | 438 | #define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\ |
a112847b | 439 | EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\ |
c046ac7f | 440 | EXT2_FEATURE_INCOMPAT_META_BG|\ |
ab146766 | 441 | EXT3_FEATURE_INCOMPAT_RECOVER) |
5a63dd28 | 442 | #endif |
674a4ee1 TT |
443 | #define EXT2_LIB_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|\ |
444 | EXT2_FEATURE_RO_COMPAT_LARGE_FILE) | |
cf8272e1 TT |
445 | |
446 | /* | |
447 | * These features are only allowed if EXT2_FLAG_SOFTSUPP_FEATURES is passed | |
448 | * to ext2fs_openfs() | |
449 | */ | |
450 | #define EXT2_LIB_SOFTSUPP_INCOMPAT (EXT3_FEATURE_INCOMPAT_EXTENTS) | |
451 | #define EXT2_LIB_SOFTSUPP_RO_COMPAT (EXT4_FEATURE_RO_COMPAT_HUGE_FILE|\ | |
452 | EXT4_FEATURE_RO_COMPAT_GDT_CSUM|\ | |
453 | EXT4_FEATURE_RO_COMPAT_DIR_NLINK|\ | |
454 | EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE) | |
455 | ||
3839e657 TT |
456 | /* |
457 | * function prototypes | |
458 | */ | |
459 | ||
460 | /* alloc.c */ | |
31dbecd4 TT |
461 | extern errcode_t ext2fs_new_inode(ext2_filsys fs, ext2_ino_t dir, int mode, |
462 | ext2fs_inode_bitmap map, ext2_ino_t *ret); | |
3839e657 | 463 | extern errcode_t ext2fs_new_block(ext2_filsys fs, blk_t goal, |
f3db3566 | 464 | ext2fs_block_bitmap map, blk_t *ret); |
3839e657 | 465 | extern errcode_t ext2fs_get_free_blocks(ext2_filsys fs, blk_t start, |
f3db3566 TT |
466 | blk_t finish, int num, |
467 | ext2fs_block_bitmap map, | |
3839e657 | 468 | blk_t *ret); |
30fab293 TT |
469 | extern errcode_t ext2fs_alloc_block(ext2_filsys fs, blk_t goal, |
470 | char *block_buf, blk_t *ret); | |
3839e657 | 471 | |
ef344e13 TT |
472 | /* alloc_sb.c */ |
473 | extern int ext2fs_reserve_super_and_bgd(ext2_filsys fs, | |
474 | dgrp_t group, | |
475 | ext2fs_block_bitmap bmap); | |
476 | ||
8bd0c959 TT |
477 | /* alloc_stats.c */ |
478 | void ext2fs_inode_alloc_stats(ext2_filsys fs, ext2_ino_t ino, int inuse); | |
7f961d42 TT |
479 | void ext2fs_inode_alloc_stats2(ext2_filsys fs, ext2_ino_t ino, |
480 | int inuse, int isdir); | |
8bd0c959 TT |
481 | void ext2fs_block_alloc_stats(ext2_filsys fs, blk_t blk, int inuse); |
482 | ||
1e1da29f TT |
483 | /* alloc_tables.c */ |
484 | extern errcode_t ext2fs_allocate_tables(ext2_filsys fs); | |
2eb374c9 | 485 | extern errcode_t ext2fs_allocate_group_table(ext2_filsys fs, dgrp_t group, |
1e1da29f | 486 | ext2fs_block_bitmap bmap); |
19c78dc0 | 487 | |
3839e657 | 488 | /* badblocks.c */ |
b7a00563 TT |
489 | extern errcode_t ext2fs_u32_list_create(ext2_u32_list *ret, int size); |
490 | extern errcode_t ext2fs_u32_list_add(ext2_u32_list bb, __u32 blk); | |
54434927 | 491 | extern int ext2fs_u32_list_find(ext2_u32_list bb, __u32 blk); |
b7a00563 TT |
492 | extern int ext2fs_u32_list_test(ext2_u32_list bb, blk_t blk); |
493 | extern errcode_t ext2fs_u32_list_iterate_begin(ext2_u32_list bb, | |
494 | ext2_u32_iterate *ret); | |
495 | extern int ext2fs_u32_list_iterate(ext2_u32_iterate iter, blk_t *blk); | |
496 | extern void ext2fs_u32_list_iterate_end(ext2_u32_iterate iter); | |
497 | extern errcode_t ext2fs_u32_copy(ext2_u32_list src, ext2_u32_list *dest); | |
498 | extern int ext2fs_u32_list_equal(ext2_u32_list bb1, ext2_u32_list bb2); | |
499 | ||
19c78dc0 TT |
500 | extern errcode_t ext2fs_badblocks_list_create(ext2_badblocks_list *ret, |
501 | int size); | |
19c78dc0 TT |
502 | extern errcode_t ext2fs_badblocks_list_add(ext2_badblocks_list bb, |
503 | blk_t blk); | |
504 | extern int ext2fs_badblocks_list_test(ext2_badblocks_list bb, | |
505 | blk_t blk); | |
7d7bdd57 TT |
506 | extern int ext2fs_u32_list_del(ext2_u32_list bb, __u32 blk); |
507 | extern void ext2fs_badblocks_list_del(ext2_u32_list bb, __u32 blk); | |
19c78dc0 TT |
508 | extern errcode_t |
509 | ext2fs_badblocks_list_iterate_begin(ext2_badblocks_list bb, | |
510 | ext2_badblocks_iterate *ret); | |
511 | extern int ext2fs_badblocks_list_iterate(ext2_badblocks_iterate iter, | |
512 | blk_t *blk); | |
513 | extern void ext2fs_badblocks_list_iterate_end(ext2_badblocks_iterate iter); | |
a29f4d30 TT |
514 | extern errcode_t ext2fs_badblocks_copy(ext2_badblocks_list src, |
515 | ext2_badblocks_list *dest); | |
57dca854 TT |
516 | extern int ext2fs_badblocks_equal(ext2_badblocks_list bb1, |
517 | ext2_badblocks_list bb2); | |
220c0040 | 518 | extern int ext2fs_u32_list_count(ext2_u32_list bb); |
19c78dc0 TT |
519 | |
520 | /* bb_compat */ | |
3839e657 | 521 | extern errcode_t badblocks_list_create(badblocks_list *ret, int size); |
3839e657 TT |
522 | extern errcode_t badblocks_list_add(badblocks_list bb, blk_t blk); |
523 | extern int badblocks_list_test(badblocks_list bb, blk_t blk); | |
524 | extern errcode_t badblocks_list_iterate_begin(badblocks_list bb, | |
525 | badblocks_iterate *ret); | |
526 | extern int badblocks_list_iterate(badblocks_iterate iter, blk_t *blk); | |
527 | extern void badblocks_list_iterate_end(badblocks_iterate iter); | |
a29f4d30 | 528 | extern void badblocks_list_free(badblocks_list bb); |
3839e657 TT |
529 | |
530 | /* bb_inode.c */ | |
531 | extern errcode_t ext2fs_update_bb_inode(ext2_filsys fs, | |
19c78dc0 | 532 | ext2_badblocks_list bb_list); |
3839e657 TT |
533 | |
534 | /* bitmaps.c */ | |
a0553c9d TT |
535 | extern void ext2fs_free_block_bitmap(ext2fs_block_bitmap bitmap); |
536 | extern void ext2fs_free_inode_bitmap(ext2fs_inode_bitmap bitmap); | |
f1f115a7 TT |
537 | extern errcode_t ext2fs_copy_bitmap(ext2fs_generic_bitmap src, |
538 | ext2fs_generic_bitmap *dest); | |
3839e657 TT |
539 | extern errcode_t ext2fs_write_inode_bitmap(ext2_filsys fs); |
540 | extern errcode_t ext2fs_write_block_bitmap (ext2_filsys fs); | |
541 | extern errcode_t ext2fs_read_inode_bitmap (ext2_filsys fs); | |
542 | extern errcode_t ext2fs_read_block_bitmap(ext2_filsys fs); | |
50e1e10f TT |
543 | extern errcode_t ext2fs_allocate_block_bitmap(ext2_filsys fs, |
544 | const char *descr, | |
545 | ext2fs_block_bitmap *ret); | |
546 | extern errcode_t ext2fs_allocate_inode_bitmap(ext2_filsys fs, | |
547 | const char *descr, | |
548 | ext2fs_inode_bitmap *ret); | |
549 | extern errcode_t ext2fs_fudge_inode_bitmap_end(ext2fs_inode_bitmap bitmap, | |
31dbecd4 | 550 | ext2_ino_t end, ext2_ino_t *oend); |
50e1e10f TT |
551 | extern errcode_t ext2fs_fudge_block_bitmap_end(ext2fs_block_bitmap bitmap, |
552 | blk_t end, blk_t *oend); | |
553 | extern void ext2fs_clear_inode_bitmap(ext2fs_inode_bitmap bitmap); | |
554 | extern void ext2fs_clear_block_bitmap(ext2fs_block_bitmap bitmap); | |
3839e657 TT |
555 | extern errcode_t ext2fs_read_bitmaps(ext2_filsys fs); |
556 | extern errcode_t ext2fs_write_bitmaps(ext2_filsys fs); | |
50448d3d TT |
557 | extern errcode_t ext2fs_resize_inode_bitmap(__u32 new_end, __u32 new_real_end, |
558 | ext2fs_inode_bitmap bmap); | |
559 | extern errcode_t ext2fs_resize_block_bitmap(__u32 new_end, __u32 new_real_end, | |
560 | ext2fs_block_bitmap bmap); | |
561 | extern errcode_t ext2fs_compare_block_bitmap(ext2fs_block_bitmap bm1, | |
562 | ext2fs_block_bitmap bm2); | |
563 | extern errcode_t ext2fs_compare_inode_bitmap(ext2fs_inode_bitmap bm1, | |
564 | ext2fs_inode_bitmap bm2); | |
f1f115a7 TT |
565 | extern errcode_t ext2fs_set_inode_bitmap_range(ext2fs_inode_bitmap bmap, |
566 | ext2_ino_t start, unsigned int num, | |
567 | void *in); | |
568 | extern errcode_t ext2fs_get_inode_bitmap_range(ext2fs_inode_bitmap bmap, | |
569 | ext2_ino_t start, unsigned int num, | |
570 | void *out); | |
571 | extern errcode_t ext2fs_set_block_bitmap_range(ext2fs_block_bitmap bmap, | |
572 | blk_t start, unsigned int num, | |
573 | void *in); | |
574 | extern errcode_t ext2fs_get_block_bitmap_range(ext2fs_block_bitmap bmap, | |
575 | blk_t start, unsigned int num, | |
576 | void *out); | |
50448d3d | 577 | |
3839e657 TT |
578 | |
579 | /* block.c */ | |
580 | extern errcode_t ext2fs_block_iterate(ext2_filsys fs, | |
31dbecd4 | 581 | ext2_ino_t ino, |
3839e657 TT |
582 | int flags, |
583 | char *block_buf, | |
584 | int (*func)(ext2_filsys fs, | |
585 | blk_t *blocknr, | |
586 | int blockcnt, | |
b5abe6fa TT |
587 | void *priv_data), |
588 | void *priv_data); | |
19c78dc0 | 589 | errcode_t ext2fs_block_iterate2(ext2_filsys fs, |
31dbecd4 | 590 | ext2_ino_t ino, |
674a4ee1 TT |
591 | int flags, |
592 | char *block_buf, | |
593 | int (*func)(ext2_filsys fs, | |
594 | blk_t *blocknr, | |
03673dbb | 595 | e2_blkcnt_t blockcnt, |
674a4ee1 TT |
596 | blk_t ref_blk, |
597 | int ref_offset, | |
598 | void *priv_data), | |
599 | void *priv_data); | |
19c78dc0 | 600 | |
30fab293 | 601 | /* bmap.c */ |
31dbecd4 | 602 | extern errcode_t ext2fs_bmap(ext2_filsys fs, ext2_ino_t ino, |
30fab293 TT |
603 | struct ext2_inode *inode, |
604 | char *block_buf, int bmap_flags, | |
605 | blk_t block, blk_t *phys_blk); | |
606 | ||
607 | ||
4a31c48b | 608 | #if 0 |
1e1da29f TT |
609 | /* bmove.c */ |
610 | extern errcode_t ext2fs_move_blocks(ext2_filsys fs, | |
611 | ext2fs_block_bitmap reserve, | |
9941fb73 | 612 | ext2fs_block_bitmap alloc_map, |
1e1da29f | 613 | int flags); |
4a31c48b | 614 | #endif |
1e1da29f | 615 | |
f3db3566 TT |
616 | /* check_desc.c */ |
617 | extern errcode_t ext2fs_check_desc(ext2_filsys fs); | |
618 | ||
3839e657 TT |
619 | /* closefs.c */ |
620 | extern errcode_t ext2fs_close(ext2_filsys fs); | |
621 | extern errcode_t ext2fs_flush(ext2_filsys fs); | |
1b4cd9c7 | 622 | extern int ext2fs_bg_has_super(ext2_filsys fs, int group_block); |
ef344e13 TT |
623 | extern int ext2fs_super_and_bgd_loc(ext2_filsys fs, |
624 | dgrp_t group, | |
625 | blk_t *ret_super_blk, | |
626 | blk_t *ret_old_desc_blk, | |
627 | blk_t *ret_new_desc_blk, | |
628 | int *ret_meta_bg); | |
1b4cd9c7 | 629 | extern void ext2fs_update_dynamic_rev(ext2_filsys fs); |
3839e657 | 630 | |
19c78dc0 TT |
631 | /* dblist.c */ |
632 | ||
31dbecd4 | 633 | extern errcode_t ext2fs_get_num_dirs(ext2_filsys fs, ext2_ino_t *ret_num_dirs); |
a29f4d30 | 634 | extern errcode_t ext2fs_init_dblist(ext2_filsys fs, ext2_dblist *ret_dblist); |
31dbecd4 | 635 | extern errcode_t ext2fs_add_dir_block(ext2_dblist dblist, ext2_ino_t ino, |
a29f4d30 | 636 | blk_t blk, int blockcnt); |
ea1959f0 TT |
637 | extern void ext2fs_dblist_sort(ext2_dblist dblist, |
638 | EXT2_QSORT_TYPE (*sortfunc)(const void *, | |
639 | const void *)); | |
a29f4d30 TT |
640 | extern errcode_t ext2fs_dblist_iterate(ext2_dblist dblist, |
641 | int (*func)(ext2_filsys fs, struct ext2_db_entry *db_info, | |
b5abe6fa TT |
642 | void *priv_data), |
643 | void *priv_data); | |
31dbecd4 | 644 | extern errcode_t ext2fs_set_dir_block(ext2_dblist dblist, ext2_ino_t ino, |
a29f4d30 TT |
645 | blk_t blk, int blockcnt); |
646 | extern errcode_t ext2fs_copy_dblist(ext2_dblist src, | |
647 | ext2_dblist *dest); | |
549860c5 | 648 | extern int ext2fs_dblist_count(ext2_dblist dblist); |
19c78dc0 TT |
649 | |
650 | /* dblist_dir.c */ | |
651 | extern errcode_t | |
652 | ext2fs_dblist_dir_iterate(ext2_dblist dblist, | |
653 | int flags, | |
654 | char *block_buf, | |
31dbecd4 | 655 | int (*func)(ext2_ino_t dir, |
19c78dc0 TT |
656 | int entry, |
657 | struct ext2_dir_entry *dirent, | |
658 | int offset, | |
659 | int blocksize, | |
660 | char *buf, | |
b5abe6fa TT |
661 | void *priv_data), |
662 | void *priv_data); | |
50e1e10f TT |
663 | |
664 | /* dirblock.c */ | |
665 | extern errcode_t ext2fs_read_dir_block(ext2_filsys fs, blk_t block, | |
666 | void *buf); | |
f9190c8a TT |
667 | extern errcode_t ext2fs_read_dir_block2(ext2_filsys fs, blk_t block, |
668 | void *buf, int flags); | |
50e1e10f TT |
669 | extern errcode_t ext2fs_write_dir_block(ext2_filsys fs, blk_t block, |
670 | void *buf); | |
f9190c8a TT |
671 | extern errcode_t ext2fs_write_dir_block2(ext2_filsys fs, blk_t block, |
672 | void *buf, int flags); | |
50e1e10f | 673 | |
52783e0c TT |
674 | /* dirhash.c */ |
675 | extern errcode_t ext2fs_dirhash(int version, const char *name, int len, | |
b33278c4 | 676 | const __u32 *seed, |
503f9e7f TT |
677 | ext2_dirhash_t *ret_hash, |
678 | ext2_dirhash_t *ret_minor_hash); | |
52783e0c TT |
679 | |
680 | ||
19c78dc0 TT |
681 | /* dir_iterate.c */ |
682 | extern errcode_t ext2fs_dir_iterate(ext2_filsys fs, | |
31dbecd4 | 683 | ext2_ino_t dir, |
19c78dc0 TT |
684 | int flags, |
685 | char *block_buf, | |
686 | int (*func)(struct ext2_dir_entry *dirent, | |
687 | int offset, | |
688 | int blocksize, | |
689 | char *buf, | |
b5abe6fa TT |
690 | void *priv_data), |
691 | void *priv_data); | |
8bd0c959 TT |
692 | extern errcode_t ext2fs_dir_iterate2(ext2_filsys fs, |
693 | ext2_ino_t dir, | |
694 | int flags, | |
695 | char *block_buf, | |
696 | int (*func)(ext2_ino_t dir, | |
697 | int entry, | |
698 | struct ext2_dir_entry *dirent, | |
699 | int offset, | |
700 | int blocksize, | |
701 | char *buf, | |
702 | void *priv_data), | |
703 | void *priv_data); | |
19c78dc0 | 704 | |
a29f4d30 TT |
705 | /* dupfs.c */ |
706 | extern errcode_t ext2fs_dup_handle(ext2_filsys src, ext2_filsys *dest); | |
19c78dc0 | 707 | |
3839e657 | 708 | /* expanddir.c */ |
31dbecd4 | 709 | extern errcode_t ext2fs_expand_dir(ext2_filsys fs, ext2_ino_t dir); |
3839e657 | 710 | |
342d847d | 711 | /* ext_attr.c */ |
342d847d | 712 | extern errcode_t ext2fs_read_ext_attr(ext2_filsys fs, blk_t block, void *buf); |
0684a4f3 TT |
713 | extern errcode_t ext2fs_write_ext_attr(ext2_filsys fs, blk_t block, |
714 | void *buf); | |
715 | extern errcode_t ext2fs_adjust_ea_refcount(ext2_filsys fs, blk_t blk, | |
716 | char *block_buf, | |
717 | int adjust, __u32 *newcount); | |
718 | ||
30fab293 | 719 | /* fileio.c */ |
a435ec34 TT |
720 | extern errcode_t ext2fs_file_open2(ext2_filsys fs, ext2_ino_t ino, |
721 | struct ext2_inode *inode, | |
722 | int flags, ext2_file_t *ret); | |
31dbecd4 | 723 | extern errcode_t ext2fs_file_open(ext2_filsys fs, ext2_ino_t ino, |
30fab293 | 724 | int flags, ext2_file_t *ret); |
79a90bda | 725 | extern ext2_filsys ext2fs_file_get_fs(ext2_file_t file); |
30fab293 | 726 | extern errcode_t ext2fs_file_close(ext2_file_t file); |
f12e285f | 727 | extern errcode_t ext2fs_file_flush(ext2_file_t file); |
30fab293 | 728 | extern errcode_t ext2fs_file_read(ext2_file_t file, void *buf, |
79a90bda | 729 | unsigned int wanted, unsigned int *got); |
f12e285f | 730 | extern errcode_t ext2fs_file_write(ext2_file_t file, const void *buf, |
79a90bda | 731 | unsigned int nbytes, unsigned int *written); |
819157db TT |
732 | extern errcode_t ext2fs_file_llseek(ext2_file_t file, __u64 offset, |
733 | int whence, __u64 *ret_pos); | |
674a4ee1 TT |
734 | extern errcode_t ext2fs_file_lseek(ext2_file_t file, ext2_off_t offset, |
735 | int whence, ext2_off_t *ret_pos); | |
819157db | 736 | errcode_t ext2fs_file_get_lsize(ext2_file_t file, __u64 *ret_size); |
79a90bda TT |
737 | extern ext2_off_t ext2fs_file_get_size(ext2_file_t file); |
738 | extern errcode_t ext2fs_file_set_size(ext2_file_t file, ext2_off_t size); | |
30fab293 | 739 | |
de23aa1d TT |
740 | /* finddev.c */ |
741 | extern char *ext2fs_find_block_device(dev_t device); | |
742 | ||
4d0f3e17 TT |
743 | /* flushb.c */ |
744 | extern errcode_t ext2fs_sync_device(int fd, int flushb); | |
745 | ||
3839e657 TT |
746 | /* freefs.c */ |
747 | extern void ext2fs_free(ext2_filsys fs); | |
a29f4d30 | 748 | extern void ext2fs_free_dblist(ext2_dblist dblist); |
b7a00563 TT |
749 | extern void ext2fs_badblocks_list_free(ext2_badblocks_list bb); |
750 | extern void ext2fs_u32_list_free(ext2_u32_list bb); | |
50e1e10f | 751 | |
a0553c9d TT |
752 | /* gen_bitmap.c */ |
753 | extern void ext2fs_free_generic_bitmap(ext2fs_inode_bitmap bitmap); | |
754 | extern errcode_t ext2fs_make_generic_bitmap(errcode_t magic, ext2_filsys fs, | |
755 | __u32 start, __u32 end, | |
756 | __u32 real_end, | |
757 | const char *descr, char *init_map, | |
758 | ext2fs_generic_bitmap *ret); | |
759 | extern errcode_t ext2fs_allocate_generic_bitmap(__u32 start, | |
760 | __u32 end, | |
761 | __u32 real_end, | |
762 | const char *descr, | |
763 | ext2fs_generic_bitmap *ret); | |
764 | extern errcode_t ext2fs_copy_generic_bitmap(ext2fs_generic_bitmap src, | |
765 | ext2fs_generic_bitmap *dest); | |
766 | extern void ext2fs_clear_generic_bitmap(ext2fs_generic_bitmap bitmap); | |
767 | extern errcode_t ext2fs_fudge_generic_bitmap_end(ext2fs_inode_bitmap bitmap, | |
768 | errcode_t magic, | |
769 | errcode_t neq, | |
770 | ext2_ino_t end, | |
771 | ext2_ino_t *oend); | |
772 | extern void ext2fs_set_generic_bitmap_padding(ext2fs_generic_bitmap map); | |
50448d3d TT |
773 | extern errcode_t ext2fs_resize_generic_bitmap(errcode_t magic, |
774 | __u32 new_end, | |
775 | __u32 new_real_end, | |
776 | ext2fs_generic_bitmap bmap); | |
777 | extern errcode_t ext2fs_compare_generic_bitmap(errcode_t magic, errcode_t neq, | |
778 | ext2fs_generic_bitmap bm1, | |
779 | ext2fs_generic_bitmap bm2); | |
f1f115a7 TT |
780 | extern errcode_t ext2fs_get_generic_bitmap_range(ext2fs_generic_bitmap bmap, |
781 | errcode_t magic, | |
782 | __u32 start, __u32 num, | |
783 | void *out); | |
784 | extern errcode_t ext2fs_set_generic_bitmap_range(ext2fs_generic_bitmap bmap, | |
785 | errcode_t magic, | |
786 | __u32 start, __u32 num, | |
787 | void *in); | |
a0553c9d | 788 | |
50e1e10f TT |
789 | /* getsize.c */ |
790 | extern errcode_t ext2fs_get_device_size(const char *file, int blocksize, | |
791 | blk_t *retblocks); | |
3839e657 | 792 | |
93d5c387 TT |
793 | /* getsectsize.c */ |
794 | errcode_t ext2fs_get_device_sectsize(const char *file, int *sectsize); | |
795 | ||
72ed1264 TT |
796 | /* imager.c */ |
797 | extern errcode_t ext2fs_image_inode_write(ext2_filsys fs, int fd, int flags); | |
798 | extern errcode_t ext2fs_image_inode_read(ext2_filsys fs, int fd, int flags); | |
799 | extern errcode_t ext2fs_image_super_write(ext2_filsys fs, int fd, int flags); | |
800 | extern errcode_t ext2fs_image_super_read(ext2_filsys fs, int fd, int flags); | |
801 | extern errcode_t ext2fs_image_bitmap_write(ext2_filsys fs, int fd, int flags); | |
802 | extern errcode_t ext2fs_image_bitmap_read(ext2_filsys fs, int fd, int flags); | |
803 | ||
dc8ce346 TT |
804 | /* ind_block.c */ |
805 | errcode_t ext2fs_read_ind_block(ext2_filsys fs, blk_t blk, void *buf); | |
806 | errcode_t ext2fs_write_ind_block(ext2_filsys fs, blk_t blk, void *buf); | |
807 | ||
3839e657 TT |
808 | /* initialize.c */ |
809 | extern errcode_t ext2fs_initialize(const char *name, int flags, | |
810 | struct ext2_super_block *param, | |
811 | io_manager manager, ext2_filsys *ret_fs); | |
812 | ||
f12e285f TT |
813 | /* icount.c */ |
814 | extern void ext2fs_free_icount(ext2_icount_t icount); | |
1b9d8cb7 TT |
815 | extern errcode_t ext2fs_create_icount_tdb(ext2_filsys fs, char *tdb_dir, |
816 | int flags, ext2_icount_t *ret); | |
54434927 TT |
817 | extern errcode_t ext2fs_create_icount2(ext2_filsys fs, int flags, |
818 | unsigned int size, | |
f12e285f | 819 | ext2_icount_t hint, ext2_icount_t *ret); |
54434927 TT |
820 | extern errcode_t ext2fs_create_icount(ext2_filsys fs, int flags, |
821 | unsigned int size, | |
f12e285f TT |
822 | ext2_icount_t *ret); |
823 | extern errcode_t ext2fs_icount_fetch(ext2_icount_t icount, ext2_ino_t ino, | |
824 | __u16 *ret); | |
825 | extern errcode_t ext2fs_icount_increment(ext2_icount_t icount, ext2_ino_t ino, | |
826 | __u16 *ret); | |
827 | extern errcode_t ext2fs_icount_decrement(ext2_icount_t icount, ext2_ino_t ino, | |
828 | __u16 *ret); | |
829 | extern errcode_t ext2fs_icount_store(ext2_icount_t icount, ext2_ino_t ino, | |
830 | __u16 count); | |
831 | extern ext2_ino_t ext2fs_get_icount_size(ext2_icount_t icount); | |
832 | errcode_t ext2fs_icount_validate(ext2_icount_t icount, FILE *); | |
833 | ||
3839e657 | 834 | /* inode.c */ |
72ed1264 | 835 | extern errcode_t ext2fs_flush_icache(ext2_filsys fs); |
7331196a TT |
836 | extern errcode_t ext2fs_get_next_inode_full(ext2_inode_scan scan, |
837 | ext2_ino_t *ino, | |
838 | struct ext2_inode *inode, | |
839 | int bufsize); | |
3839e657 TT |
840 | extern errcode_t ext2fs_open_inode_scan(ext2_filsys fs, int buffer_blocks, |
841 | ext2_inode_scan *ret_scan); | |
842 | extern void ext2fs_close_inode_scan(ext2_inode_scan scan); | |
31dbecd4 | 843 | extern errcode_t ext2fs_get_next_inode(ext2_inode_scan scan, ext2_ino_t *ino, |
3839e657 | 844 | struct ext2_inode *inode); |
19c78dc0 TT |
845 | extern errcode_t ext2fs_inode_scan_goto_blockgroup(ext2_inode_scan scan, |
846 | int group); | |
847 | extern void ext2fs_set_inode_callback | |
848 | (ext2_inode_scan scan, | |
849 | errcode_t (*done_group)(ext2_filsys fs, | |
850 | ext2_inode_scan scan, | |
851 | dgrp_t group, | |
b5abe6fa | 852 | void * priv_data), |
19c78dc0 TT |
853 | void *done_group_data); |
854 | extern int ext2fs_inode_scan_flags(ext2_inode_scan scan, int set_flags, | |
855 | int clear_flags); | |
7331196a TT |
856 | extern errcode_t ext2fs_read_inode_full(ext2_filsys fs, ext2_ino_t ino, |
857 | struct ext2_inode * inode, | |
858 | int bufsize); | |
31dbecd4 | 859 | extern errcode_t ext2fs_read_inode (ext2_filsys fs, ext2_ino_t ino, |
3839e657 | 860 | struct ext2_inode * inode); |
7331196a TT |
861 | extern errcode_t ext2fs_write_inode_full(ext2_filsys fs, ext2_ino_t ino, |
862 | struct ext2_inode * inode, | |
863 | int bufsize); | |
31dbecd4 | 864 | extern errcode_t ext2fs_write_inode(ext2_filsys fs, ext2_ino_t ino, |
3839e657 | 865 | struct ext2_inode * inode); |
030970ed TT |
866 | extern errcode_t ext2fs_write_new_inode(ext2_filsys fs, ext2_ino_t ino, |
867 | struct ext2_inode * inode); | |
31dbecd4 TT |
868 | extern errcode_t ext2fs_get_blocks(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks); |
869 | extern errcode_t ext2fs_check_directory(ext2_filsys fs, ext2_ino_t ino); | |
3839e657 | 870 | |
f12e285f TT |
871 | /* inode_io.c */ |
872 | extern io_manager inode_io_manager; | |
546a1ff1 TT |
873 | extern errcode_t ext2fs_inode_io_intern(ext2_filsys fs, ext2_ino_t ino, |
874 | char **name); | |
a435ec34 TT |
875 | extern errcode_t ext2fs_inode_io_intern2(ext2_filsys fs, ext2_ino_t ino, |
876 | struct ext2_inode *inode, | |
877 | char **name); | |
f12e285f | 878 | |
50e1e10f TT |
879 | /* ismounted.c */ |
880 | extern errcode_t ext2fs_check_if_mounted(const char *file, int *mount_flags); | |
43ec8734 TT |
881 | extern errcode_t ext2fs_check_mount_point(const char *device, int *mount_flags, |
882 | char *mtpt, int mtlen); | |
50e1e10f | 883 | |
3839e657 | 884 | /* namei.c */ |
31dbecd4 TT |
885 | extern errcode_t ext2fs_lookup(ext2_filsys fs, ext2_ino_t dir, const char *name, |
886 | int namelen, char *buf, ext2_ino_t *inode); | |
887 | extern errcode_t ext2fs_namei(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd, | |
888 | const char *name, ext2_ino_t *inode); | |
889 | errcode_t ext2fs_namei_follow(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd, | |
890 | const char *name, ext2_ino_t *inode); | |
891 | extern errcode_t ext2fs_follow_link(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd, | |
892 | ext2_ino_t inode, ext2_ino_t *res_inode); | |
1e3472c5 TT |
893 | |
894 | /* native.c */ | |
895 | int ext2fs_native_flag(void); | |
3839e657 TT |
896 | |
897 | /* newdir.c */ | |
31dbecd4 TT |
898 | extern errcode_t ext2fs_new_dir_block(ext2_filsys fs, ext2_ino_t dir_ino, |
899 | ext2_ino_t parent_ino, char **block); | |
3839e657 TT |
900 | |
901 | /* mkdir.c */ | |
31dbecd4 | 902 | extern errcode_t ext2fs_mkdir(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t inum, |
3839e657 TT |
903 | const char *name); |
904 | ||
d3cd93ca | 905 | /* mkjournal.c */ |
a112847b TT |
906 | extern errcode_t ext2fs_create_journal_superblock(ext2_filsys fs, |
907 | __u32 size, int flags, | |
908 | char **ret_jsb); | |
909 | extern errcode_t ext2fs_add_journal_device(ext2_filsys fs, | |
910 | ext2_filsys journal_dev); | |
31a17b36 TT |
911 | extern errcode_t ext2fs_add_journal_inode(ext2_filsys fs, blk_t size, |
912 | int flags); | |
56d12367 | 913 | extern int ext2fs_default_journal_size(__u64 blocks); |
d3cd93ca | 914 | |
3839e657 TT |
915 | /* openfs.c */ |
916 | extern errcode_t ext2fs_open(const char *name, int flags, int superblock, | |
54434927 | 917 | unsigned int block_size, io_manager manager, |
3839e657 | 918 | ext2_filsys *ret_fs); |
2e8ca9a2 TT |
919 | extern errcode_t ext2fs_open2(const char *name, const char *io_options, |
920 | int flags, int superblock, | |
921 | unsigned int block_size, io_manager manager, | |
922 | ext2_filsys *ret_fs); | |
c046ac7f TT |
923 | extern blk_t ext2fs_descriptor_block_loc(ext2_filsys fs, blk_t group_block, |
924 | dgrp_t i); | |
1ad54a94 TT |
925 | errcode_t ext2fs_get_data_io(ext2_filsys fs, io_channel *old_io); |
926 | errcode_t ext2fs_set_data_io(ext2_filsys fs, io_channel new_io); | |
927 | errcode_t ext2fs_rewrite_to_io(ext2_filsys fs, io_channel new_io); | |
3839e657 TT |
928 | |
929 | /* get_pathname.c */ | |
31dbecd4 | 930 | extern errcode_t ext2fs_get_pathname(ext2_filsys fs, ext2_ino_t dir, ext2_ino_t ino, |
3839e657 TT |
931 | char **name); |
932 | ||
933 | /* link.c */ | |
31dbecd4 TT |
934 | errcode_t ext2fs_link(ext2_filsys fs, ext2_ino_t dir, const char *name, |
935 | ext2_ino_t ino, int flags); | |
936 | errcode_t ext2fs_unlink(ext2_filsys fs, ext2_ino_t dir, const char *name, | |
937 | ext2_ino_t ino, int flags); | |
3839e657 TT |
938 | |
939 | /* read_bb.c */ | |
19c78dc0 TT |
940 | extern errcode_t ext2fs_read_bb_inode(ext2_filsys fs, |
941 | ext2_badblocks_list *bb_list); | |
3839e657 TT |
942 | |
943 | /* read_bb_file.c */ | |
57dca854 TT |
944 | extern errcode_t ext2fs_read_bb_FILE2(ext2_filsys fs, FILE *f, |
945 | ext2_badblocks_list *bb_list, | |
50cd7e06 | 946 | void *priv_data, |
57dca854 TT |
947 | void (*invalid)(ext2_filsys fs, |
948 | blk_t blk, | |
949 | char *badstr, | |
50cd7e06 | 950 | void *priv_data)); |
3839e657 | 951 | extern errcode_t ext2fs_read_bb_FILE(ext2_filsys fs, FILE *f, |
19c78dc0 | 952 | ext2_badblocks_list *bb_list, |
3839e657 TT |
953 | void (*invalid)(ext2_filsys fs, |
954 | blk_t blk)); | |
955 | ||
d323f8fb TT |
956 | /* res_gdt.c */ |
957 | extern errcode_t ext2fs_create_resize_inode(ext2_filsys fs); | |
958 | ||
50e1e10f | 959 | /* swapfs.c */ |
7331196a TT |
960 | extern void ext2fs_swap_ext_attr(char *to, char *from, int bufsize, |
961 | int has_header); | |
50e1e10f TT |
962 | extern void ext2fs_swap_super(struct ext2_super_block * super); |
963 | extern void ext2fs_swap_group_desc(struct ext2_group_desc *gdp); | |
7331196a TT |
964 | extern void ext2fs_swap_inode_full(ext2_filsys fs, struct ext2_inode_large *t, |
965 | struct ext2_inode_large *f, int hostorder, | |
966 | int bufsize); | |
1e3472c5 TT |
967 | extern void ext2fs_swap_inode(ext2_filsys fs,struct ext2_inode *t, |
968 | struct ext2_inode *f, int hostorder); | |
969 | ||
19c78dc0 | 970 | /* valid_blk.c */ |
521e3685 TT |
971 | extern int ext2fs_inode_has_valid_blocks(struct ext2_inode *inode); |
972 | ||
973 | /* version.c */ | |
974 | extern int ext2fs_parse_version_string(const char *ver_string); | |
975 | extern int ext2fs_get_library_version(const char **ver_string, | |
976 | const char **date_string); | |
50e1e10f | 977 | |
31dbecd4 TT |
978 | /* write_bb_file.c */ |
979 | extern errcode_t ext2fs_write_bb_FILE(ext2_badblocks_list bb_list, | |
980 | unsigned int flags, | |
981 | FILE *f); | |
982 | ||
983 | ||
3839e657 | 984 | /* inline functions */ |
c4e3d3f3 TT |
985 | extern errcode_t ext2fs_get_mem(unsigned long size, void *ptr); |
986 | extern errcode_t ext2fs_free_mem(void *ptr); | |
76f875da | 987 | extern errcode_t ext2fs_resize_mem(unsigned long old_size, |
c4e3d3f3 | 988 | unsigned long size, void *ptr); |
3839e657 TT |
989 | extern void ext2fs_mark_super_dirty(ext2_filsys fs); |
990 | extern void ext2fs_mark_changed(ext2_filsys fs); | |
991 | extern int ext2fs_test_changed(ext2_filsys fs); | |
992 | extern void ext2fs_mark_valid(ext2_filsys fs); | |
993 | extern void ext2fs_unmark_valid(ext2_filsys fs); | |
994 | extern int ext2fs_test_valid(ext2_filsys fs); | |
995 | extern void ext2fs_mark_ib_dirty(ext2_filsys fs); | |
996 | extern void ext2fs_mark_bb_dirty(ext2_filsys fs); | |
997 | extern int ext2fs_test_ib_dirty(ext2_filsys fs); | |
998 | extern int ext2fs_test_bb_dirty(ext2_filsys fs); | |
999 | extern int ext2fs_group_of_blk(ext2_filsys fs, blk_t blk); | |
31dbecd4 | 1000 | extern int ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino); |
abf23439 ES |
1001 | extern blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group); |
1002 | extern blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group); | |
0684a4f3 TT |
1003 | extern blk_t ext2fs_inode_data_blocks(ext2_filsys fs, |
1004 | struct ext2_inode *inode); | |
69022e02 | 1005 | extern unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b); |
3839e657 TT |
1006 | |
1007 | /* | |
1008 | * The actual inlined functions definitions themselves... | |
1009 | * | |
1010 | * If NO_INLINE_FUNCS is defined, then we won't try to do inline | |
1011 | * functions at all! | |
1012 | */ | |
1013 | #if (defined(INCLUDE_INLINE_FUNCS) || !defined(NO_INLINE_FUNCS)) | |
1014 | #ifdef INCLUDE_INLINE_FUNCS | |
1015 | #define _INLINE_ extern | |
1016 | #else | |
76f875da | 1017 | #ifdef __GNUC__ |
3839e657 | 1018 | #define _INLINE_ extern __inline__ |
76f875da TT |
1019 | #else /* For Watcom C */ |
1020 | #define _INLINE_ extern inline | |
1021 | #endif | |
3839e657 TT |
1022 | #endif |
1023 | ||
7b4e4534 | 1024 | #ifndef EXT2_CUSTOM_MEMORY_ROUTINES |
68a7f959 | 1025 | #include <string.h> |
7b4e4534 TT |
1026 | /* |
1027 | * Allocate memory | |
1028 | */ | |
c4e3d3f3 | 1029 | _INLINE_ errcode_t ext2fs_get_mem(unsigned long size, void *ptr) |
7b4e4534 | 1030 | { |
2694f319 | 1031 | void *pp; |
c4e3d3f3 | 1032 | |
2694f319 TT |
1033 | pp = malloc(size); |
1034 | if (!pp) | |
291c9049 | 1035 | return EXT2_ET_NO_MEMORY; |
2694f319 | 1036 | memcpy(ptr, &pp, sizeof (pp)); |
7b4e4534 TT |
1037 | return 0; |
1038 | } | |
1039 | ||
1040 | /* | |
1041 | * Free memory | |
1042 | */ | |
c4e3d3f3 | 1043 | _INLINE_ errcode_t ext2fs_free_mem(void *ptr) |
7b4e4534 | 1044 | { |
2694f319 | 1045 | void *p; |
c4e3d3f3 | 1046 | |
2694f319 TT |
1047 | memcpy(&p, ptr, sizeof(p)); |
1048 | free(p); | |
1049 | p = 0; | |
1050 | memcpy(ptr, &p, sizeof(p)); | |
7b4e4534 TT |
1051 | return 0; |
1052 | } | |
1053 | ||
1054 | /* | |
1055 | * Resize memory | |
1056 | */ | |
e47fd841 | 1057 | _INLINE_ errcode_t ext2fs_resize_mem(unsigned long EXT2FS_ATTR((unused)) old_size, |
c4e3d3f3 | 1058 | unsigned long size, void *ptr) |
7b4e4534 TT |
1059 | { |
1060 | void *p; | |
1061 | ||
39c191f5 ST |
1062 | /* Use "memcpy" for pointer assignments here to avoid problems |
1063 | * with C99 strict type aliasing rules. */ | |
2694f319 | 1064 | memcpy(&p, ptr, sizeof(p)); |
39c191f5 | 1065 | p = realloc(p, size); |
7b4e4534 | 1066 | if (!p) |
291c9049 | 1067 | return EXT2_ET_NO_MEMORY; |
2694f319 | 1068 | memcpy(ptr, &p, sizeof(p)); |
7b4e4534 TT |
1069 | return 0; |
1070 | } | |
1071 | #endif /* Custom memory routines */ | |
1072 | ||
3839e657 TT |
1073 | /* |
1074 | * Mark a filesystem superblock as dirty | |
1075 | */ | |
1076 | _INLINE_ void ext2fs_mark_super_dirty(ext2_filsys fs) | |
1077 | { | |
1078 | fs->flags |= EXT2_FLAG_DIRTY | EXT2_FLAG_CHANGED; | |
1079 | } | |
1080 | ||
1081 | /* | |
1082 | * Mark a filesystem as changed | |
1083 | */ | |
1084 | _INLINE_ void ext2fs_mark_changed(ext2_filsys fs) | |
1085 | { | |
1086 | fs->flags |= EXT2_FLAG_CHANGED; | |
1087 | } | |
1088 | ||
1089 | /* | |
1090 | * Check to see if a filesystem has changed | |
1091 | */ | |
1092 | _INLINE_ int ext2fs_test_changed(ext2_filsys fs) | |
1093 | { | |
1094 | return (fs->flags & EXT2_FLAG_CHANGED); | |
1095 | } | |
1096 | ||
1097 | /* | |
1098 | * Mark a filesystem as valid | |
1099 | */ | |
1100 | _INLINE_ void ext2fs_mark_valid(ext2_filsys fs) | |
1101 | { | |
1102 | fs->flags |= EXT2_FLAG_VALID; | |
1103 | } | |
1104 | ||
1105 | /* | |
1106 | * Mark a filesystem as NOT valid | |
1107 | */ | |
1108 | _INLINE_ void ext2fs_unmark_valid(ext2_filsys fs) | |
1109 | { | |
1110 | fs->flags &= ~EXT2_FLAG_VALID; | |
1111 | } | |
1112 | ||
1113 | /* | |
1114 | * Check to see if a filesystem is valid | |
1115 | */ | |
1116 | _INLINE_ int ext2fs_test_valid(ext2_filsys fs) | |
1117 | { | |
1118 | return (fs->flags & EXT2_FLAG_VALID); | |
1119 | } | |
1120 | ||
1121 | /* | |
1122 | * Mark the inode bitmap as dirty | |
1123 | */ | |
1124 | _INLINE_ void ext2fs_mark_ib_dirty(ext2_filsys fs) | |
1125 | { | |
1126 | fs->flags |= EXT2_FLAG_IB_DIRTY | EXT2_FLAG_CHANGED; | |
1127 | } | |
1128 | ||
1129 | /* | |
1130 | * Mark the block bitmap as dirty | |
1131 | */ | |
1132 | _INLINE_ void ext2fs_mark_bb_dirty(ext2_filsys fs) | |
1133 | { | |
1134 | fs->flags |= EXT2_FLAG_BB_DIRTY | EXT2_FLAG_CHANGED; | |
1135 | } | |
1136 | ||
1137 | /* | |
1138 | * Check to see if a filesystem's inode bitmap is dirty | |
1139 | */ | |
1140 | _INLINE_ int ext2fs_test_ib_dirty(ext2_filsys fs) | |
1141 | { | |
1142 | return (fs->flags & EXT2_FLAG_IB_DIRTY); | |
1143 | } | |
1144 | ||
1145 | /* | |
1146 | * Check to see if a filesystem's block bitmap is dirty | |
1147 | */ | |
1148 | _INLINE_ int ext2fs_test_bb_dirty(ext2_filsys fs) | |
1149 | { | |
1150 | return (fs->flags & EXT2_FLAG_BB_DIRTY); | |
1151 | } | |
1152 | ||
1153 | /* | |
1154 | * Return the group # of a block | |
1155 | */ | |
1156 | _INLINE_ int ext2fs_group_of_blk(ext2_filsys fs, blk_t blk) | |
1157 | { | |
1158 | return (blk - fs->super->s_first_data_block) / | |
1159 | fs->super->s_blocks_per_group; | |
1160 | } | |
1161 | ||
1162 | /* | |
1163 | * Return the group # of an inode number | |
1164 | */ | |
31dbecd4 | 1165 | _INLINE_ int ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino) |
3839e657 TT |
1166 | { |
1167 | return (ino - 1) / fs->super->s_inodes_per_group; | |
1168 | } | |
0684a4f3 | 1169 | |
abf23439 ES |
1170 | /* |
1171 | * Return the first block (inclusive) in a group | |
1172 | */ | |
1173 | _INLINE_ blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group) | |
1174 | { | |
1175 | return fs->super->s_first_data_block + | |
1176 | (group * fs->super->s_blocks_per_group); | |
1177 | } | |
1178 | ||
1179 | /* | |
1180 | * Return the last block (inclusive) in a group | |
1181 | */ | |
1182 | _INLINE_ blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group) | |
1183 | { | |
1184 | return (group == fs->group_desc_count - 1 ? | |
1185 | fs->super->s_blocks_count - 1 : | |
1186 | ext2fs_group_first_block(fs, group) + | |
1187 | (fs->super->s_blocks_per_group - 1)); | |
1188 | } | |
1189 | ||
0684a4f3 TT |
1190 | _INLINE_ blk_t ext2fs_inode_data_blocks(ext2_filsys fs, |
1191 | struct ext2_inode *inode) | |
1192 | { | |
1193 | return inode->i_blocks - | |
1194 | (inode->i_file_acl ? fs->blocksize >> 9 : 0); | |
1195 | } | |
69022e02 TT |
1196 | |
1197 | /* | |
1198 | * This is an efficient, overflow safe way of calculating ceil((1.0 * a) / b) | |
1199 | */ | |
1200 | _INLINE_ unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b) | |
1201 | { | |
1202 | if (!a) | |
1203 | return 0; | |
1204 | return ((a - 1) / b) + 1; | |
1205 | } | |
3839e657 TT |
1206 | #undef _INLINE_ |
1207 | #endif | |
1208 | ||
fa7ef717 TT |
1209 | #ifdef __cplusplus |
1210 | } | |
1211 | #endif | |
1212 | ||
9abd2ce9 | 1213 | #endif /* _EXT2FS_EXT2FS_H */ |