]> git.ipfire.org Git - thirdparty/e2fsprogs.git/blob - lib/ext2fs/ext2fs.h
projects / thirdparty / e2fsprogs.git / blob
? search:


8ff49ca669a8bf670c5038c110f0abe95ed10739
[thirdparty/e2fsprogs.git] / lib / ext2fs / ext2fs.h
1 /*
2 * ext2fs.h --- ext2fs
3 *
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 Library
8 * General Public License, version 2.
9 * %End-Header%
10 */
11
12 #ifndef _EXT2FS_EXT2FS_H
13 #define _EXT2FS_EXT2FS_H
14
15 #ifdef __GNUC__
16 #define EXT2FS_ATTR(x) __attribute__(x)
17 #else
18 #define EXT2FS_ATTR(x)
19 #endif
20
21 #ifdef CONFIG_TDB
22 #define EXT2FS_NO_TDB_UNUSED
23 #else
24 #define EXT2FS_NO_TDB_UNUSED EXT2FS_ATTR((unused))
25 #endif
26
27 #ifdef __cplusplus
28 extern "C" {
29 #endif
30
31 /*
32 * Non-GNU C compilers won't necessarily understand inline
33 */
34 #if (!defined(__GNUC__) && !defined(__WATCOMC__))
35 #define NO_INLINE_FUNCS
36 #endif
37
38 /*
39 * Where the master copy of the superblock is located, and how big
40 * superblocks are supposed to be. We define SUPERBLOCK_SIZE because
41 * the size of the superblock structure is not necessarily trustworthy
42 * (some versions have the padding set up so that the superblock is
43 * 1032 bytes long).
44 */
45 #define SUPERBLOCK_OFFSET 1024
46 #define SUPERBLOCK_SIZE 1024
47
48 #define UUID_STR_SIZE 37
49
50 /*
51 * The last ext2fs revision level that this version of the library is
52 * able to support.
53 */
54 #define EXT2_LIB_CURRENT_REV EXT2_DYNAMIC_REV
55
56 #ifdef HAVE_SYS_TYPES_H
57 #include <sys/types.h>
58 #endif
59
60 #include <stdio.h>
61 #include <stdlib.h>
62 #include <string.h>
63 #include <time.h>
64 #include <errno.h>
65
66 #if EXT2_FLAT_INCLUDES
67 #include "e2_types.h"
68 #include "ext2_fs.h"
69 #include "ext3_extents.h"
70 #else
71 #include <ext2fs/ext2_types.h>
72 #include <ext2fs/ext2_fs.h>
73 #include <ext2fs/ext3_extents.h>
74 #endif /* EXT2_FLAT_INCLUDES */
75
76 typedef __u32 __bitwise ext2_ino_t;
77 typedef __u32 __bitwise blk_t;
78 typedef __u64 __bitwise blk64_t;
79 typedef __u32 __bitwise dgrp_t;
80 typedef __u32 __bitwise ext2_off_t;
81 typedef __u64 __bitwise ext2_off64_t;
82 typedef __s64 __bitwise e2_blkcnt_t;
83 typedef __u32 __bitwise ext2_dirhash_t;
84
85 #if EXT2_FLAT_INCLUDES
86 #include "com_err.h"
87 #include "ext2_io.h"
88 #include "ext2_err.h"
89 #include "ext2_ext_attr.h"
90 #else
91 #include <et/com_err.h>
92 #include <ext2fs/ext2_io.h>
93 #include <ext2fs/ext2_err.h>
94 #include <ext2fs/ext2_ext_attr.h>
95 #endif
96
97 /*
98 * Portability help for Microsoft Visual C++
99 */
100 #ifdef _MSC_VER
101 #define EXT2_QSORT_TYPE int __cdecl
102 #else
103 #define EXT2_QSORT_TYPE int
104 #endif
105
106 typedef struct struct_ext2_filsys *ext2_filsys;
107
108 #define EXT2FS_MARK_ERROR 0
109 #define EXT2FS_UNMARK_ERROR 1
110 #define EXT2FS_TEST_ERROR 2
111
112 typedef struct ext2fs_struct_generic_bitmap *ext2fs_generic_bitmap;
113 typedef struct ext2fs_struct_generic_bitmap *ext2fs_inode_bitmap;
114 typedef struct ext2fs_struct_generic_bitmap *ext2fs_block_bitmap;
115
116 #define EXT2_FIRST_INODE(s) EXT2_FIRST_INO(s)
117
118
119 /*
120 * Badblocks list definitions
121 */
122
123 typedef struct ext2_struct_u32_list *ext2_badblocks_list;
124 typedef struct ext2_struct_u32_iterate *ext2_badblocks_iterate;
125
126 typedef struct ext2_struct_u32_list *ext2_u32_list;
127 typedef struct ext2_struct_u32_iterate *ext2_u32_iterate;
128
129 /* old */
130 typedef struct ext2_struct_u32_list *badblocks_list;
131 typedef struct ext2_struct_u32_iterate *badblocks_iterate;
132
133 #define BADBLOCKS_FLAG_DIRTY 1
134
135 /*
136 * ext2_dblist structure and abstractions (see dblist.c)
137 */
138 struct ext2_db_entry2 {
139 ext2_ino_t ino;
140 blk64_t blk;
141 e2_blkcnt_t blockcnt;
142 };
143
144 /* Ye Olde 32-bit version */
145 struct ext2_db_entry {
146 ext2_ino_t ino;
147 blk_t blk;
148 int blockcnt;
149 };
150
151 typedef struct ext2_struct_dblist *ext2_dblist;
152
153 #define DBLIST_ABORT 1
154
155 /*
156 * ext2_fileio definitions
157 */
158
159 #define EXT2_FILE_WRITE 0x0001
160 #define EXT2_FILE_CREATE 0x0002
161
162 #define EXT2_FILE_MASK 0x00FF
163
164 #define EXT2_FILE_BUF_DIRTY 0x4000
165 #define EXT2_FILE_BUF_VALID 0x2000
166
167 typedef struct ext2_file *ext2_file_t;
168
169 #define EXT2_SEEK_SET 0
170 #define EXT2_SEEK_CUR 1
171 #define EXT2_SEEK_END 2
172
173 /*
174 * Flags for the ext2_filsys structure and for ext2fs_open()
175 */
176 #define EXT2_FLAG_RW 0x01
177 #define EXT2_FLAG_CHANGED 0x02
178 #define EXT2_FLAG_DIRTY 0x04
179 #define EXT2_FLAG_VALID 0x08
180 #define EXT2_FLAG_IB_DIRTY 0x10
181 #define EXT2_FLAG_BB_DIRTY 0x20
182 #define EXT2_FLAG_SWAP_BYTES 0x40
183 #define EXT2_FLAG_SWAP_BYTES_READ 0x80
184 #define EXT2_FLAG_SWAP_BYTES_WRITE 0x100
185 #define EXT2_FLAG_MASTER_SB_ONLY 0x200
186 #define EXT2_FLAG_FORCE 0x400
187 #define EXT2_FLAG_SUPER_ONLY 0x800
188 #define EXT2_FLAG_JOURNAL_DEV_OK 0x1000
189 #define EXT2_FLAG_IMAGE_FILE 0x2000
190 #define EXT2_FLAG_EXCLUSIVE 0x4000
191 #define EXT2_FLAG_SOFTSUPP_FEATURES 0x8000
192 #define EXT2_FLAG_NOFREE_ON_ERROR 0x10000
193 #define EXT2_FLAG_64BITS 0x20000
194 #define EXT2_FLAG_PRINT_PROGRESS 0x40000
195 #define EXT2_FLAG_DIRECT_IO 0x80000
196 #define EXT2_FLAG_SKIP_MMP 0x100000
197 #define EXT2_FLAG_IGNORE_CSUM_ERRORS 0x200000
198
199 /*
200 * Special flag in the ext2 inode i_flag field that means that this is
201 * a new inode. (So that ext2_write_inode() can clear extra fields.)
202 */
203 #define EXT2_NEW_INODE_FL 0x80000000
204
205 /*
206 * Flags for mkjournal
207 */
208 #define EXT2_MKJOURNAL_V1_SUPER 0x0000001 /* create V1 superblock (deprecated) */
209 #define EXT2_MKJOURNAL_LAZYINIT 0x0000002 /* don't zero journal inode before use*/
210 #define EXT2_MKJOURNAL_NO_MNT_CHECK 0x0000004 /* don't check mount status */
211
212 struct opaque_ext2_group_desc;
213
214 struct struct_ext2_filsys {
215 errcode_t magic;
216 io_channel io;
217 int flags;
218 char * device_name;
219 struct ext2_super_block * super;
220 unsigned int blocksize;
221 int fragsize;
222 dgrp_t group_desc_count;
223 unsigned long desc_blocks;
224 struct opaque_ext2_group_desc * group_desc;
225 unsigned int inode_blocks_per_group;
226 ext2fs_inode_bitmap inode_map;
227 ext2fs_block_bitmap block_map;
228 /* XXX FIXME-64: not 64-bit safe, but not used? */
229 errcode_t (*get_blocks)(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
230 errcode_t (*check_directory)(ext2_filsys fs, ext2_ino_t ino);
231 errcode_t (*write_bitmaps)(ext2_filsys fs);
232 errcode_t (*read_inode)(ext2_filsys fs, ext2_ino_t ino,
233 struct ext2_inode *inode);
234 errcode_t (*write_inode)(ext2_filsys fs, ext2_ino_t ino,
235 struct ext2_inode *inode);
236 ext2_badblocks_list badblocks;
237 ext2_dblist dblist;
238 __u32 stride; /* for mke2fs */
239 struct ext2_super_block * orig_super;
240 struct ext2_image_hdr * image_header;
241 __u32 umask;
242 time_t now;
243 int cluster_ratio_bits;
244 __u16 default_bitmap_type;
245 __u16 pad;
246 /*
247 * Reserved for future expansion
248 */
249 __u32 reserved[5];
250
251 /*
252 * Reserved for the use of the calling application.
253 */
254 void * priv_data;
255
256 /*
257 * Inode cache
258 */
259 struct ext2_inode_cache *icache;
260 io_channel image_io;
261
262 /*
263 * More callback functions
264 */
265 errcode_t (*get_alloc_block)(ext2_filsys fs, blk64_t goal,
266 blk64_t *ret);
267 void (*block_alloc_stats)(ext2_filsys fs, blk64_t blk, int inuse);
268
269 /*
270 * Buffers for Multiple mount protection(MMP) block.
271 */
272 void *mmp_buf;
273 void *mmp_cmp;
274 int mmp_fd;
275
276 /*
277 * Time at which e2fsck last updated the MMP block.
278 */
279 long mmp_last_written;
280
281 /* progress operation functions */
282 struct ext2fs_progress_ops *progress_ops;
283
284 /* Precomputed FS UUID checksum for seeding other checksums */
285 __u32 csum_seed;
286
287 io_channel journal_io;
288 char *journal_name;
289
290 /* New block range allocation hooks */
291 errcode_t (*new_range)(ext2_filsys fs, int flags, blk64_t goal,
292 blk64_t len, blk64_t *pblk, blk64_t *plen);
293 void (*block_alloc_stats_range)(ext2_filsys fs, blk64_t blk, blk_t num,
294 int inuse);
295 };
296
297 #if EXT2_FLAT_INCLUDES
298 #include "e2_bitops.h"
299 #else
300 #include <ext2fs/bitops.h>
301 #endif
302
303 /*
304 * 64-bit bitmap backend types
305 */
306 #define EXT2FS_BMAP64_BITARRAY 1
307 #define EXT2FS_BMAP64_RBTREE 2
308 #define EXT2FS_BMAP64_AUTODIR 3
309
310 /*
311 * Return flags for the block iterator functions
312 */
313 #define BLOCK_CHANGED 1
314 #define BLOCK_ABORT 2
315 #define BLOCK_ERROR 4
316 #define BLOCK_INLINE_DATA_CHANGED 8
317
318 /*
319 * Block interate flags
320 *
321 * BLOCK_FLAG_APPEND, or BLOCK_FLAG_HOLE, indicates that the interator
322 * function should be called on blocks where the block number is zero.
323 * This is used by ext2fs_expand_dir() to be able to add a new block
324 * to an inode. It can also be used for programs that want to be able
325 * to deal with files that contain "holes".
326 *
327 * BLOCK_FLAG_DEPTH_TRAVERSE indicates that the iterator function for
328 * the indirect, doubly indirect, etc. blocks should be called after
329 * all of the blocks containined in the indirect blocks are processed.
330 * This is useful if you are going to be deallocating blocks from an
331 * inode.
332 *
333 * BLOCK_FLAG_DATA_ONLY indicates that the iterator function should be
334 * called for data blocks only.
335 *
336 * BLOCK_FLAG_READ_ONLY is a promise by the caller that it will not
337 * modify returned block number.
338 *
339 * BLOCK_FLAG_NO_LARGE is for internal use only. It informs
340 * ext2fs_block_iterate2 that large files won't be accepted.
341 */
342 #define BLOCK_FLAG_APPEND 1
343 #define BLOCK_FLAG_HOLE 1
344 #define BLOCK_FLAG_DEPTH_TRAVERSE 2
345 #define BLOCK_FLAG_DATA_ONLY 4
346 #define BLOCK_FLAG_READ_ONLY 8
347
348 #define BLOCK_FLAG_NO_LARGE 0x1000
349
350 /*
351 * Magic "block count" return values for the block iterator function.
352 */
353 #define BLOCK_COUNT_IND (-1)
354 #define BLOCK_COUNT_DIND (-2)
355 #define BLOCK_COUNT_TIND (-3)
356 #define BLOCK_COUNT_TRANSLATOR (-4)
357
358 #if 0
359 /*
360 * Flags for ext2fs_move_blocks
361 */
362 #define EXT2_BMOVE_GET_DBLIST 0x0001
363 #define EXT2_BMOVE_DEBUG 0x0002
364 #endif
365
366 /*
367 * Generic (non-filesystem layout specific) extents structure
368 */
369
370 #define EXT2_EXTENT_FLAGS_LEAF 0x0001
371 #define EXT2_EXTENT_FLAGS_UNINIT 0x0002
372 #define EXT2_EXTENT_FLAGS_SECOND_VISIT 0x0004
373
374 struct ext2fs_extent {
375 blk64_t e_pblk; /* first physical block */
376 blk64_t e_lblk; /* first logical block extent covers */
377 __u32 e_len; /* number of blocks covered by extent */
378 __u32 e_flags; /* extent flags */
379 };
380
381 typedef struct ext2_extent_handle *ext2_extent_handle_t;
382 typedef struct ext2_extent_path *ext2_extent_path_t;
383
384 /*
385 * Flags used by ext2fs_extent_get()
386 */
387 #define EXT2_EXTENT_CURRENT 0x0000
388 #define EXT2_EXTENT_MOVE_MASK 0x000F
389 #define EXT2_EXTENT_ROOT 0x0001
390 #define EXT2_EXTENT_LAST_LEAF 0x0002
391 #define EXT2_EXTENT_FIRST_SIB 0x0003
392 #define EXT2_EXTENT_LAST_SIB 0x0004
393 #define EXT2_EXTENT_NEXT_SIB 0x0005
394 #define EXT2_EXTENT_PREV_SIB 0x0006
395 #define EXT2_EXTENT_NEXT_LEAF 0x0007
396 #define EXT2_EXTENT_PREV_LEAF 0x0008
397 #define EXT2_EXTENT_NEXT 0x0009
398 #define EXT2_EXTENT_PREV 0x000A
399 #define EXT2_EXTENT_UP 0x000B
400 #define EXT2_EXTENT_DOWN 0x000C
401 #define EXT2_EXTENT_DOWN_AND_LAST 0x000D
402
403 /*
404 * Flags used by ext2fs_extent_insert()
405 */
406 #define EXT2_EXTENT_INSERT_AFTER 0x0001 /* insert after handle loc'n */
407 #define EXT2_EXTENT_INSERT_NOSPLIT 0x0002 /* insert may not cause split */
408
409 /*
410 * Flags used by ext2fs_extent_delete()
411 */
412 #define EXT2_EXTENT_DELETE_KEEP_EMPTY 0x001 /* keep node if last extnt gone */
413
414 /*
415 * Flags used by ext2fs_extent_set_bmap()
416 */
417 #define EXT2_EXTENT_SET_BMAP_UNINIT 0x0001
418
419 /*
420 * Data structure returned by ext2fs_extent_get_info()
421 */
422 struct ext2_extent_info {
423 int curr_entry;
424 int curr_level;
425 int num_entries;
426 int max_entries;
427 int max_depth;
428 int bytes_avail;
429 blk64_t max_lblk;
430 blk64_t max_pblk;
431 __u32 max_len;
432 __u32 max_uninit_len;
433 };
434
435 /*
436 * Flags for directory block reading and writing functions
437 */
438 #define EXT2_DIRBLOCK_V2_STRUCT 0x0001
439
440 /*
441 * Return flags for the directory iterator functions
442 */
443 #define DIRENT_CHANGED 1
444 #define DIRENT_ABORT 2
445 #define DIRENT_ERROR 3
446
447 /*
448 * Directory iterator flags
449 */
450
451 #define DIRENT_FLAG_INCLUDE_EMPTY 1
452 #define DIRENT_FLAG_INCLUDE_REMOVED 2
453 #define DIRENT_FLAG_INCLUDE_CSUM 4
454 #define DIRENT_FLAG_INCLUDE_INLINE_DATA 8
455
456 #define DIRENT_DOT_FILE 1
457 #define DIRENT_DOT_DOT_FILE 2
458 #define DIRENT_OTHER_FILE 3
459 #define DIRENT_DELETED_FILE 4
460 #define DIRENT_CHECKSUM 5
461
462 /*
463 * Inode scan definitions
464 */
465 typedef struct ext2_struct_inode_scan *ext2_inode_scan;
466
467 /*
468 * ext2fs_scan flags
469 */
470 #define EXT2_SF_CHK_BADBLOCKS 0x0001
471 #define EXT2_SF_BAD_INODE_BLK 0x0002
472 #define EXT2_SF_BAD_EXTRA_BYTES 0x0004
473 #define EXT2_SF_SKIP_MISSING_ITABLE 0x0008
474 #define EXT2_SF_DO_LAZY 0x0010
475 #define EXT2_SF_WARN_GARBAGE_INODES 0x0020
476
477 /*
478 * ext2fs_check_if_mounted flags
479 */
480 #define EXT2_MF_MOUNTED 1
481 #define EXT2_MF_ISROOT 2
482 #define EXT2_MF_READONLY 4
483 #define EXT2_MF_SWAP 8
484 #define EXT2_MF_BUSY 16
485
486 /*
487 * Ext2/linux mode flags. We define them here so that we don't need
488 * to depend on the OS's sys/stat.h, since we may be compiling on a
489 * non-Linux system.
490 */
491 #define LINUX_S_IFMT 00170000
492 #define LINUX_S_IFSOCK 0140000
493 #define LINUX_S_IFLNK 0120000
494 #define LINUX_S_IFREG 0100000
495 #define LINUX_S_IFBLK 0060000
496 #define LINUX_S_IFDIR 0040000
497 #define LINUX_S_IFCHR 0020000
498 #define LINUX_S_IFIFO 0010000
499 #define LINUX_S_ISUID 0004000
500 #define LINUX_S_ISGID 0002000
501 #define LINUX_S_ISVTX 0001000
502
503 #define LINUX_S_IRWXU 00700
504 #define LINUX_S_IRUSR 00400
505 #define LINUX_S_IWUSR 00200
506 #define LINUX_S_IXUSR 00100
507
508 #define LINUX_S_IRWXG 00070
509 #define LINUX_S_IRGRP 00040
510 #define LINUX_S_IWGRP 00020
511 #define LINUX_S_IXGRP 00010
512
513 #define LINUX_S_IRWXO 00007
514 #define LINUX_S_IROTH 00004
515 #define LINUX_S_IWOTH 00002
516 #define LINUX_S_IXOTH 00001
517
518 #define LINUX_S_ISLNK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFLNK)
519 #define LINUX_S_ISREG(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFREG)
520 #define LINUX_S_ISDIR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFDIR)
521 #define LINUX_S_ISCHR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFCHR)
522 #define LINUX_S_ISBLK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFBLK)
523 #define LINUX_S_ISFIFO(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFIFO)
524 #define LINUX_S_ISSOCK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFSOCK)
525
526 /*
527 * ext2 size of an inode
528 */
529 #define EXT2_I_SIZE(i) ((i)->i_size | ((__u64) (i)->i_size_high << 32))
530
531 /*
532 * ext2_icount_t abstraction
533 */
534 #define EXT2_ICOUNT_OPT_INCREMENT 0x01
535
536 typedef struct ext2_icount *ext2_icount_t;
537
538 /*
539 * Flags for ext2fs_bmap
540 */
541 #define BMAP_ALLOC 0x0001
542 #define BMAP_SET 0x0002
543 #define BMAP_UNINIT 0x0004
544 #define BMAP_ZERO 0x0008
545
546 /*
547 * Returned flags from ext2fs_bmap
548 */
549 #define BMAP_RET_UNINIT 0x0001
550
551 /*
552 * Flags for imager.c functions
553 */
554 #define IMAGER_FLAG_INODEMAP 1
555 #define IMAGER_FLAG_SPARSEWRITE 2
556
557 /*
558 * For checking structure magic numbers...
559 */
560
561 #define EXT2_CHECK_MAGIC(struct, code) \
562 if ((struct)->magic != (code)) return (code)
563
564 /*
565 * Features supported by this version of the library
566 */
567 #define EXT2_LIB_FEATURE_COMPAT_SUPP (EXT2_FEATURE_COMPAT_DIR_PREALLOC|\
568 EXT2_FEATURE_COMPAT_IMAGIC_INODES|\
569 EXT3_FEATURE_COMPAT_HAS_JOURNAL|\
570 EXT2_FEATURE_COMPAT_RESIZE_INODE|\
571 EXT2_FEATURE_COMPAT_DIR_INDEX|\
572 EXT2_FEATURE_COMPAT_EXT_ATTR|\
573 EXT4_FEATURE_COMPAT_SPARSE_SUPER2)
574
575 #ifdef CONFIG_MMP
576 #define EXT4_LIB_INCOMPAT_MMP EXT4_FEATURE_INCOMPAT_MMP
577 #else
578 #define EXT4_LIB_INCOMPAT_MMP (0)
579 #endif
580
581 #define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\
582 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\
583 EXT2_FEATURE_INCOMPAT_META_BG|\
584 EXT3_FEATURE_INCOMPAT_RECOVER|\
585 EXT3_FEATURE_INCOMPAT_EXTENTS|\
586 EXT4_FEATURE_INCOMPAT_FLEX_BG|\
587 EXT4_LIB_INCOMPAT_MMP|\
588 EXT4_FEATURE_INCOMPAT_64BIT|\
589 EXT4_FEATURE_INCOMPAT_INLINE_DATA|\
590 EXT4_FEATURE_INCOMPAT_ENCRYPT|\
591 EXT4_FEATURE_INCOMPAT_CSUM_SEED)
592
593 #define EXT2_LIB_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|\
594 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|\
595 EXT2_FEATURE_RO_COMPAT_LARGE_FILE|\
596 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|\
597 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|\
598 EXT4_FEATURE_RO_COMPAT_GDT_CSUM|\
599 EXT4_FEATURE_RO_COMPAT_BIGALLOC|\
600 EXT4_FEATURE_RO_COMPAT_QUOTA|\
601 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM|\
602 EXT4_FEATURE_RO_COMPAT_READONLY |\
603 EXT4_FEATURE_RO_COMPAT_PROJECT)
604
605 /*
606 * These features are only allowed if EXT2_FLAG_SOFTSUPP_FEATURES is passed
607 * to ext2fs_openfs()
608 */
609 #define EXT2_LIB_SOFTSUPP_INCOMPAT (0)
610 #define EXT2_LIB_SOFTSUPP_RO_COMPAT (EXT4_FEATURE_RO_COMPAT_REPLICA)
611
612
613 /* Translate a block number to a cluster number */
614 #define EXT2FS_CLUSTER_RATIO(fs) (1 << (fs)->cluster_ratio_bits)
615 #define EXT2FS_CLUSTER_MASK(fs) (EXT2FS_CLUSTER_RATIO(fs) - 1)
616 #define EXT2FS_B2C(fs, blk) ((blk) >> (fs)->cluster_ratio_bits)
617 /* Translate a cluster number to a block number */
618 #define EXT2FS_C2B(fs, cluster) ((cluster) << (fs)->cluster_ratio_bits)
619 /* Translate # of blks to # of clusters */
620 #define EXT2FS_NUM_B2C(fs, blks) (((blks) + EXT2FS_CLUSTER_MASK(fs)) >> \
621 (fs)->cluster_ratio_bits)
622
623 #if defined(HAVE_FSTAT64) && !defined(__OSX_AVAILABLE_BUT_DEPRECATED)
624 typedef struct stat64 ext2fs_struct_stat;
625 #else
626 typedef struct stat ext2fs_struct_stat;
627 #endif
628
629 /*
630 * For ext2fs_close2() and ext2fs_flush2(), this flag allows you to
631 * avoid the fsync call.
632 */
633 #define EXT2_FLAG_FLUSH_NO_SYNC 1
634
635 /*
636 * Modify and iterate extended attributes
637 */
638 struct ext2_xattr_handle;
639 #define XATTR_ABORT 1
640 #define XATTR_CHANGED 2
641
642 /*
643 * function prototypes
644 */
645 static inline int ext2fs_has_group_desc_csum(ext2_filsys fs)
646 {
647 return ext2fs_has_feature_metadata_csum(fs->super) ||
648 ext2fs_has_feature_gdt_csum(fs->super);
649 }
650
651 /* The LARGE_FILE feature should be set if we have stored files 2GB+ in size */
652 static inline int ext2fs_needs_large_file_feature(unsigned long long file_size)
653 {
654 return file_size >= 0x80000000ULL;
655 }
656
657 /* alloc.c */
658 extern void ext2fs_clear_block_uninit(ext2_filsys fs, dgrp_t group);
659 extern errcode_t ext2fs_new_inode(ext2_filsys fs, ext2_ino_t dir, int mode,
660 ext2fs_inode_bitmap map, ext2_ino_t *ret);
661 extern errcode_t ext2fs_new_block(ext2_filsys fs, blk_t goal,
662 ext2fs_block_bitmap map, blk_t *ret);
663 extern errcode_t ext2fs_new_block2(ext2_filsys fs, blk64_t goal,
664 ext2fs_block_bitmap map, blk64_t *ret);
665 extern errcode_t ext2fs_get_free_blocks(ext2_filsys fs, blk_t start,
666 blk_t finish, int num,
667 ext2fs_block_bitmap map,
668 blk_t *ret);
669 extern errcode_t ext2fs_get_free_blocks2(ext2_filsys fs, blk64_t start,
670 blk64_t finish, int num,
671 ext2fs_block_bitmap map,
672 blk64_t *ret);
673 extern errcode_t ext2fs_alloc_block(ext2_filsys fs, blk_t goal,
674 char *block_buf, blk_t *ret);
675 extern errcode_t ext2fs_alloc_block2(ext2_filsys fs, blk64_t goal,
676 char *block_buf, blk64_t *ret);
677 extern void ext2fs_set_alloc_block_callback(ext2_filsys fs,
678 errcode_t (*func)(ext2_filsys fs,
679 blk64_t goal,
680 blk64_t *ret),
681 errcode_t (**old)(ext2_filsys fs,
682 blk64_t goal,
683 blk64_t *ret));
684 blk64_t ext2fs_find_inode_goal(ext2_filsys fs, ext2_ino_t ino,
685 struct ext2_inode *inode, blk64_t lblk);
686 extern void ext2fs_set_new_range_callback(ext2_filsys fs,
687 errcode_t (*func)(ext2_filsys fs, int flags, blk64_t goal,
688 blk64_t len, blk64_t *pblk, blk64_t *plen),
689 errcode_t (**old)(ext2_filsys fs, int flags, blk64_t goal,
690 blk64_t len, blk64_t *pblk, blk64_t *plen));
691 extern void ext2fs_set_block_alloc_stats_range_callback(ext2_filsys fs,
692 void (*func)(ext2_filsys fs, blk64_t blk,
693 blk_t num, int inuse),
694 void (**old)(ext2_filsys fs, blk64_t blk,
695 blk_t num, int inuse));
696 #define EXT2_NEWRANGE_FIXED_GOAL (0x1)
697 #define EXT2_NEWRANGE_MIN_LENGTH (0x2)
698 #define EXT2_NEWRANGE_ALL_FLAGS (0x3)
699 errcode_t ext2fs_new_range(ext2_filsys fs, int flags, blk64_t goal,
700 blk64_t len, ext2fs_block_bitmap map, blk64_t *pblk,
701 blk64_t *plen);
702 #define EXT2_ALLOCRANGE_FIXED_GOAL (0x1)
703 #define EXT2_ALLOCRANGE_ZERO_BLOCKS (0x2)
704 #define EXT2_ALLOCRANGE_ALL_FLAGS (0x3)
705 errcode_t ext2fs_alloc_range(ext2_filsys fs, int flags, blk64_t goal,
706 blk_t len, blk64_t *ret);
707
708 /* alloc_sb.c */
709 extern int ext2fs_reserve_super_and_bgd(ext2_filsys fs,
710 dgrp_t group,
711 ext2fs_block_bitmap bmap);
712 extern void ext2fs_set_block_alloc_stats_callback(ext2_filsys fs,
713 void (*func)(ext2_filsys fs,
714 blk64_t blk,
715 int inuse),
716 void (**old)(ext2_filsys fs,
717 blk64_t blk,
718 int inuse));
719
720 /* alloc_stats.c */
721 void ext2fs_inode_alloc_stats(ext2_filsys fs, ext2_ino_t ino, int inuse);
722 void ext2fs_inode_alloc_stats2(ext2_filsys fs, ext2_ino_t ino,
723 int inuse, int isdir);
724 void ext2fs_block_alloc_stats(ext2_filsys fs, blk_t blk, int inuse);
725 void ext2fs_block_alloc_stats2(ext2_filsys fs, blk64_t blk, int inuse);
726 void ext2fs_block_alloc_stats_range(ext2_filsys fs, blk64_t blk,
727 blk_t num, int inuse);
728
729 /* alloc_tables.c */
730 extern errcode_t ext2fs_allocate_tables(ext2_filsys fs);
731 extern errcode_t ext2fs_allocate_group_table(ext2_filsys fs, dgrp_t group,
732 ext2fs_block_bitmap bmap);
733
734 /* badblocks.c */
735 extern errcode_t ext2fs_u32_list_create(ext2_u32_list *ret, int size);
736 extern errcode_t ext2fs_u32_list_add(ext2_u32_list bb, __u32 blk);
737 extern int ext2fs_u32_list_find(ext2_u32_list bb, __u32 blk);
738 extern int ext2fs_u32_list_test(ext2_u32_list bb, blk_t blk);
739 extern errcode_t ext2fs_u32_list_iterate_begin(ext2_u32_list bb,
740 ext2_u32_iterate *ret);
741 extern int ext2fs_u32_list_iterate(ext2_u32_iterate iter, blk_t *blk);
742 extern void ext2fs_u32_list_iterate_end(ext2_u32_iterate iter);
743 extern errcode_t ext2fs_u32_copy(ext2_u32_list src, ext2_u32_list *dest);
744 extern int ext2fs_u32_list_equal(ext2_u32_list bb1, ext2_u32_list bb2);
745
746 extern errcode_t ext2fs_badblocks_list_create(ext2_badblocks_list *ret,
747 int size);
748 extern errcode_t ext2fs_badblocks_list_add(ext2_badblocks_list bb,
749 blk_t blk);
750 extern int ext2fs_badblocks_list_test(ext2_badblocks_list bb,
751 blk_t blk);
752 extern int ext2fs_u32_list_del(ext2_u32_list bb, __u32 blk);
753 extern void ext2fs_badblocks_list_del(ext2_u32_list bb, __u32 blk);
754 extern errcode_t
755 ext2fs_badblocks_list_iterate_begin(ext2_badblocks_list bb,
756 ext2_badblocks_iterate *ret);
757 extern int ext2fs_badblocks_list_iterate(ext2_badblocks_iterate iter,
758 blk_t *blk);
759 extern void ext2fs_badblocks_list_iterate_end(ext2_badblocks_iterate iter);
760 extern errcode_t ext2fs_badblocks_copy(ext2_badblocks_list src,
761 ext2_badblocks_list *dest);
762 extern int ext2fs_badblocks_equal(ext2_badblocks_list bb1,
763 ext2_badblocks_list bb2);
764 extern int ext2fs_u32_list_count(ext2_u32_list bb);
765
766 /* bb_compat */
767 extern errcode_t badblocks_list_create(badblocks_list *ret, int size);
768 extern errcode_t badblocks_list_add(badblocks_list bb, blk_t blk);
769 extern int badblocks_list_test(badblocks_list bb, blk_t blk);
770 extern errcode_t badblocks_list_iterate_begin(badblocks_list bb,
771 badblocks_iterate *ret);
772 extern int badblocks_list_iterate(badblocks_iterate iter, blk_t *blk);
773 extern void badblocks_list_iterate_end(badblocks_iterate iter);
774 extern void badblocks_list_free(badblocks_list bb);
775
776 /* bb_inode.c */
777 extern errcode_t ext2fs_update_bb_inode(ext2_filsys fs,
778 ext2_badblocks_list bb_list);
779
780 /* bitmaps.c */
781 extern void ext2fs_free_block_bitmap(ext2fs_block_bitmap bitmap);
782 extern void ext2fs_free_inode_bitmap(ext2fs_inode_bitmap bitmap);
783 extern errcode_t ext2fs_copy_bitmap(ext2fs_generic_bitmap src,
784 ext2fs_generic_bitmap *dest);
785 extern errcode_t ext2fs_write_inode_bitmap(ext2_filsys fs);
786 extern errcode_t ext2fs_write_block_bitmap (ext2_filsys fs);
787 extern errcode_t ext2fs_read_inode_bitmap (ext2_filsys fs);
788 extern errcode_t ext2fs_read_block_bitmap(ext2_filsys fs);
789 extern errcode_t ext2fs_allocate_block_bitmap(ext2_filsys fs,
790 const char *descr,
791 ext2fs_block_bitmap *ret);
792 extern errcode_t ext2fs_allocate_subcluster_bitmap(ext2_filsys fs,
793 const char *descr,
794 ext2fs_block_bitmap *ret);
795 extern int ext2fs_get_bitmap_granularity(ext2fs_block_bitmap bitmap);
796 extern errcode_t ext2fs_allocate_inode_bitmap(ext2_filsys fs,
797 const char *descr,
798 ext2fs_inode_bitmap *ret);
799 extern errcode_t ext2fs_fudge_inode_bitmap_end(ext2fs_inode_bitmap bitmap,
800 ext2_ino_t end, ext2_ino_t *oend);
801 extern errcode_t ext2fs_fudge_block_bitmap_end(ext2fs_block_bitmap bitmap,
802 blk_t end, blk_t *oend);
803 extern errcode_t ext2fs_fudge_block_bitmap_end2(ext2fs_block_bitmap bitmap,
804 blk64_t end, blk64_t *oend);
805 extern void ext2fs_clear_inode_bitmap(ext2fs_inode_bitmap bitmap);
806 extern void ext2fs_clear_block_bitmap(ext2fs_block_bitmap bitmap);
807 extern errcode_t ext2fs_read_bitmaps(ext2_filsys fs);
808 extern errcode_t ext2fs_write_bitmaps(ext2_filsys fs);
809 extern errcode_t ext2fs_resize_inode_bitmap(__u32 new_end, __u32 new_real_end,
810 ext2fs_inode_bitmap bmap);
811 extern errcode_t ext2fs_resize_inode_bitmap2(__u64 new_end,
812 __u64 new_real_end,
813 ext2fs_inode_bitmap bmap);
814 extern errcode_t ext2fs_resize_block_bitmap(__u32 new_end, __u32 new_real_end,
815 ext2fs_block_bitmap bmap);
816 extern errcode_t ext2fs_resize_block_bitmap2(__u64 new_end,
817 __u64 new_real_end,
818 ext2fs_block_bitmap bmap);
819 extern errcode_t ext2fs_compare_block_bitmap(ext2fs_block_bitmap bm1,
820 ext2fs_block_bitmap bm2);
821 extern errcode_t ext2fs_compare_inode_bitmap(ext2fs_inode_bitmap bm1,
822 ext2fs_inode_bitmap bm2);
823 extern errcode_t ext2fs_set_inode_bitmap_range(ext2fs_inode_bitmap bmap,
824 ext2_ino_t start, unsigned int num,
825 void *in);
826 extern errcode_t ext2fs_set_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
827 __u64 start, size_t num,
828 void *in);
829 extern errcode_t ext2fs_get_inode_bitmap_range(ext2fs_inode_bitmap bmap,
830 ext2_ino_t start, unsigned int num,
831 void *out);
832 extern errcode_t ext2fs_get_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
833 __u64 start, size_t num,
834 void *out);
835 extern errcode_t ext2fs_set_block_bitmap_range(ext2fs_block_bitmap bmap,
836 blk_t start, unsigned int num,
837 void *in);
838 extern errcode_t ext2fs_set_block_bitmap_range2(ext2fs_block_bitmap bmap,
839 blk64_t start, size_t num,
840 void *in);
841 extern errcode_t ext2fs_get_block_bitmap_range(ext2fs_block_bitmap bmap,
842 blk_t start, unsigned int num,
843 void *out);
844 extern errcode_t ext2fs_get_block_bitmap_range2(ext2fs_block_bitmap bmap,
845 blk64_t start, size_t num,
846 void *out);
847
848 /* blknum.c */
849 extern __u32 ext2fs_inode_bitmap_checksum(ext2_filsys fs, dgrp_t group);
850 extern __u32 ext2fs_block_bitmap_checksum(ext2_filsys fs, dgrp_t group);
851 extern dgrp_t ext2fs_group_of_blk2(ext2_filsys fs, blk64_t);
852 extern blk64_t ext2fs_group_first_block2(ext2_filsys fs, dgrp_t group);
853 extern blk64_t ext2fs_group_last_block2(ext2_filsys fs, dgrp_t group);
854 extern int ext2fs_group_blocks_count(ext2_filsys fs, dgrp_t group);
855 extern blk64_t ext2fs_inode_data_blocks2(ext2_filsys fs,
856 struct ext2_inode *inode);
857 extern blk64_t ext2fs_inode_i_blocks(ext2_filsys fs,
858 struct ext2_inode *inode);
859 extern blk64_t ext2fs_blocks_count(struct ext2_super_block *super);
860 extern void ext2fs_blocks_count_set(struct ext2_super_block *super,
861 blk64_t blk);
862 extern void ext2fs_blocks_count_add(struct ext2_super_block *super,
863 blk64_t blk);
864 extern blk64_t ext2fs_r_blocks_count(struct ext2_super_block *super);
865 extern void ext2fs_r_blocks_count_set(struct ext2_super_block *super,
866 blk64_t blk);
867 extern void ext2fs_r_blocks_count_add(struct ext2_super_block *super,
868 blk64_t blk);
869 extern blk64_t ext2fs_free_blocks_count(struct ext2_super_block *super);
870 extern void ext2fs_free_blocks_count_set(struct ext2_super_block *super,
871 blk64_t blk);
872 extern void ext2fs_free_blocks_count_add(struct ext2_super_block *super,
873 blk64_t blk);
874 /* Block group descriptor accessor functions */
875 extern struct ext2_group_desc *ext2fs_group_desc(ext2_filsys fs,
876 struct opaque_ext2_group_desc *gdp,
877 dgrp_t group);
878 extern blk64_t ext2fs_block_bitmap_csum(ext2_filsys fs, dgrp_t group);
879 extern blk64_t ext2fs_block_bitmap_loc(ext2_filsys fs, dgrp_t group);
880 extern void ext2fs_block_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
881 blk64_t blk);
882 extern __u32 ext2fs_inode_bitmap_csum(ext2_filsys fs, dgrp_t group);
883 extern blk64_t ext2fs_inode_bitmap_loc(ext2_filsys fs, dgrp_t group);
884 extern void ext2fs_inode_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
885 blk64_t blk);
886 extern blk64_t ext2fs_inode_table_loc(ext2_filsys fs, dgrp_t group);
887 extern void ext2fs_inode_table_loc_set(ext2_filsys fs, dgrp_t group,
888 blk64_t blk);
889 extern __u32 ext2fs_bg_free_blocks_count(ext2_filsys fs, dgrp_t group);
890 extern void ext2fs_bg_free_blocks_count_set(ext2_filsys fs, dgrp_t group,
891 __u32 n);
892 extern __u32 ext2fs_bg_free_inodes_count(ext2_filsys fs, dgrp_t group);
893 extern void ext2fs_bg_free_inodes_count_set(ext2_filsys fs, dgrp_t group,
894 __u32 n);
895 extern __u32 ext2fs_bg_used_dirs_count(ext2_filsys fs, dgrp_t group);
896 extern void ext2fs_bg_used_dirs_count_set(ext2_filsys fs, dgrp_t group,
897 __u32 n);
898 extern __u32 ext2fs_bg_itable_unused(ext2_filsys fs, dgrp_t group);
899 extern void ext2fs_bg_itable_unused_set(ext2_filsys fs, dgrp_t group,
900 __u32 n);
901 extern __u16 ext2fs_bg_flags(ext2_filsys fs, dgrp_t group);
902 extern void ext2fs_bg_flags_zap(ext2_filsys fs, dgrp_t group);
903 extern int ext2fs_bg_flags_test(ext2_filsys fs, dgrp_t group, __u16 bg_flag);
904 extern void ext2fs_bg_flags_set(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
905 extern void ext2fs_bg_flags_clear(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
906 extern __u16 ext2fs_bg_checksum(ext2_filsys fs, dgrp_t group);
907 extern void ext2fs_bg_checksum_set(ext2_filsys fs, dgrp_t group, __u16 checksum);
908 extern blk64_t ext2fs_file_acl_block(ext2_filsys fs,
909 const struct ext2_inode *inode);
910 extern void ext2fs_file_acl_block_set(ext2_filsys fs,
911 struct ext2_inode *inode, blk64_t blk);
912 extern errcode_t ext2fs_inode_size_set(ext2_filsys fs, struct ext2_inode *inode,
913 ext2_off64_t size);
914
915 /* block.c */
916 extern errcode_t ext2fs_block_iterate(ext2_filsys fs,
917 ext2_ino_t ino,
918 int flags,
919 char *block_buf,
920 int (*func)(ext2_filsys fs,
921 blk_t *blocknr,
922 int blockcnt,
923 void *priv_data),
924 void *priv_data);
925 errcode_t ext2fs_block_iterate2(ext2_filsys fs,
926 ext2_ino_t ino,
927 int flags,
928 char *block_buf,
929 int (*func)(ext2_filsys fs,
930 blk_t *blocknr,
931 e2_blkcnt_t blockcnt,
932 blk_t ref_blk,
933 int ref_offset,
934 void *priv_data),
935 void *priv_data);
936 errcode_t ext2fs_block_iterate3(ext2_filsys fs,
937 ext2_ino_t ino,
938 int flags,
939 char *block_buf,
940 int (*func)(ext2_filsys fs,
941 blk64_t *blocknr,
942 e2_blkcnt_t blockcnt,
943 blk64_t ref_blk,
944 int ref_offset,
945 void *priv_data),
946 void *priv_data);
947
948 /* bmap.c */
949 extern errcode_t ext2fs_bmap(ext2_filsys fs, ext2_ino_t ino,
950 struct ext2_inode *inode,
951 char *block_buf, int bmap_flags,
952 blk_t block, blk_t *phys_blk);
953 extern errcode_t ext2fs_bmap2(ext2_filsys fs, ext2_ino_t ino,
954 struct ext2_inode *inode,
955 char *block_buf, int bmap_flags, blk64_t block,
956 int *ret_flags, blk64_t *phys_blk);
957 errcode_t ext2fs_map_cluster_block(ext2_filsys fs, ext2_ino_t ino,
958 struct ext2_inode *inode, blk64_t lblk,
959 blk64_t *pblk);
960
961 #if 0
962 /* bmove.c */
963 extern errcode_t ext2fs_move_blocks(ext2_filsys fs,
964 ext2fs_block_bitmap reserve,
965 ext2fs_block_bitmap alloc_map,
966 int flags);
967 #endif
968
969 /* check_desc.c */
970 extern errcode_t ext2fs_check_desc(ext2_filsys fs);
971
972 /* closefs.c */
973 extern errcode_t ext2fs_close(ext2_filsys fs);
974 extern errcode_t ext2fs_close2(ext2_filsys fs, int flags);
975 extern errcode_t ext2fs_close_free(ext2_filsys *fs);
976 extern errcode_t ext2fs_flush(ext2_filsys fs);
977 extern errcode_t ext2fs_flush2(ext2_filsys fs, int flags);
978 extern int ext2fs_bg_has_super(ext2_filsys fs, dgrp_t group_block);
979 extern errcode_t ext2fs_super_and_bgd_loc2(ext2_filsys fs,
980 dgrp_t group,
981 blk64_t *ret_super_blk,
982 blk64_t *ret_old_desc_blk,
983 blk64_t *ret_new_desc_blk,
984 blk_t *ret_used_blks);
985 extern int ext2fs_super_and_bgd_loc(ext2_filsys fs,
986 dgrp_t group,
987 blk_t *ret_super_blk,
988 blk_t *ret_old_desc_blk,
989 blk_t *ret_new_desc_blk,
990 int *ret_meta_bg);
991 extern void ext2fs_update_dynamic_rev(ext2_filsys fs);
992
993 /* crc32c.c */
994 extern __u32 ext2fs_crc32_be(__u32 crc, unsigned char const *p, size_t len);
995 extern __u32 ext2fs_crc32c_le(__u32 crc, unsigned char const *p, size_t len);
996
997 /* csum.c */
998 extern void ext2fs_init_csum_seed(ext2_filsys fs);
999 extern errcode_t ext2fs_mmp_csum_set(ext2_filsys fs, struct mmp_struct *mmp);
1000 extern int ext2fs_mmp_csum_verify(ext2_filsys, struct mmp_struct *mmp);
1001 extern int ext2fs_verify_csum_type(ext2_filsys fs, struct ext2_super_block *sb);
1002 extern errcode_t ext2fs_superblock_csum_set(ext2_filsys fs,
1003 struct ext2_super_block *sb);
1004 extern int ext2fs_superblock_csum_verify(ext2_filsys fs,
1005 struct ext2_super_block *sb);
1006 extern errcode_t ext2fs_ext_attr_block_csum_set(ext2_filsys fs,
1007 ext2_ino_t inum, blk64_t block,
1008 struct ext2_ext_attr_header *hdr);
1009 extern int ext2fs_ext_attr_block_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1010 blk64_t block,
1011 struct ext2_ext_attr_header *hdr);
1012 #define EXT2_DIRENT_TAIL(block, blocksize) \
1013 ((struct ext2_dir_entry_tail *)(((char *)(block)) + \
1014 (blocksize) - sizeof(struct ext2_dir_entry_tail)))
1015
1016 extern void ext2fs_initialize_dirent_tail(ext2_filsys fs,
1017 struct ext2_dir_entry_tail *t);
1018 extern int ext2fs_dirent_has_tail(ext2_filsys fs,
1019 struct ext2_dir_entry *dirent);
1020 extern int ext2fs_dirent_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1021 struct ext2_dir_entry *dirent);
1022 extern int ext2fs_dir_block_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1023 struct ext2_dir_entry *dirent);
1024 extern errcode_t ext2fs_dir_block_csum_set(ext2_filsys fs, ext2_ino_t inum,
1025 struct ext2_dir_entry *dirent);
1026 extern errcode_t ext2fs_get_dx_countlimit(ext2_filsys fs,
1027 struct ext2_dir_entry *dirent,
1028 struct ext2_dx_countlimit **cc,
1029 int *offset);
1030 extern errcode_t ext2fs_extent_block_csum_set(ext2_filsys fs,
1031 ext2_ino_t inum,
1032 struct ext3_extent_header *eh);
1033 extern int ext2fs_extent_block_csum_verify(ext2_filsys fs,
1034 ext2_ino_t inum,
1035 struct ext3_extent_header *eh);
1036 extern errcode_t ext2fs_block_bitmap_csum_set(ext2_filsys fs, dgrp_t group,
1037 char *bitmap, int size);
1038 extern int ext2fs_block_bitmap_csum_verify(ext2_filsys fs, dgrp_t group,
1039 char *bitmap, int size);
1040 extern errcode_t ext2fs_inode_bitmap_csum_set(ext2_filsys fs, dgrp_t group,
1041 char *bitmap, int size);
1042 extern int ext2fs_inode_bitmap_csum_verify(ext2_filsys fs, dgrp_t group,
1043 char *bitmap, int size);
1044 extern errcode_t ext2fs_inode_csum_set(ext2_filsys fs, ext2_ino_t inum,
1045 struct ext2_inode_large *inode);
1046 extern int ext2fs_inode_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1047 struct ext2_inode_large *inode);
1048 extern void ext2fs_group_desc_csum_set(ext2_filsys fs, dgrp_t group);
1049 extern int ext2fs_group_desc_csum_verify(ext2_filsys fs, dgrp_t group);
1050 extern errcode_t ext2fs_set_gdt_csum(ext2_filsys fs);
1051 extern __u16 ext2fs_group_desc_csum(ext2_filsys fs, dgrp_t group);
1052
1053 /* dblist.c */
1054 extern errcode_t ext2fs_init_dblist(ext2_filsys fs, ext2_dblist *ret_dblist);
1055 extern errcode_t ext2fs_add_dir_block(ext2_dblist dblist, ext2_ino_t ino,
1056 blk_t blk, int blockcnt);
1057 extern errcode_t ext2fs_add_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
1058 blk64_t blk, e2_blkcnt_t blockcnt);
1059 extern void ext2fs_dblist_sort(ext2_dblist dblist,
1060 EXT2_QSORT_TYPE (*sortfunc)(const void *,
1061 const void *));
1062 extern void ext2fs_dblist_sort2(ext2_dblist dblist,
1063 EXT2_QSORT_TYPE (*sortfunc)(const void *,
1064 const void *));
1065 extern errcode_t ext2fs_dblist_iterate(ext2_dblist dblist,
1066 int (*func)(ext2_filsys fs, struct ext2_db_entry *db_info,
1067 void *priv_data),
1068 void *priv_data);
1069 extern errcode_t ext2fs_dblist_iterate2(ext2_dblist dblist,
1070 int (*func)(ext2_filsys fs, struct ext2_db_entry2 *db_info,
1071 void *priv_data),
1072 void *priv_data);
1073 extern errcode_t ext2fs_dblist_iterate3(ext2_dblist dblist,
1074 int (*func)(ext2_filsys fs, struct ext2_db_entry2 *db_info,
1075 void *priv_data),
1076 unsigned long long start,
1077 unsigned long long count,
1078 void *priv_data);
1079 extern errcode_t ext2fs_set_dir_block(ext2_dblist dblist, ext2_ino_t ino,
1080 blk_t blk, int blockcnt);
1081 extern errcode_t ext2fs_set_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
1082 blk64_t blk, e2_blkcnt_t blockcnt);
1083 extern errcode_t ext2fs_copy_dblist(ext2_dblist src,
1084 ext2_dblist *dest);
1085 extern int ext2fs_dblist_count(ext2_dblist dblist);
1086 extern blk64_t ext2fs_dblist_count2(ext2_dblist dblist);
1087 extern errcode_t ext2fs_dblist_get_last(ext2_dblist dblist,
1088 struct ext2_db_entry **entry);
1089 extern errcode_t ext2fs_dblist_get_last2(ext2_dblist dblist,
1090 struct ext2_db_entry2 **entry);
1091 extern errcode_t ext2fs_dblist_drop_last(ext2_dblist dblist);
1092
1093 /* dblist_dir.c */
1094 extern errcode_t
1095 ext2fs_dblist_dir_iterate(ext2_dblist dblist,
1096 int flags,
1097 char *block_buf,
1098 int (*func)(ext2_ino_t dir,
1099 int entry,
1100 struct ext2_dir_entry *dirent,
1101 int offset,
1102 int blocksize,
1103 char *buf,
1104 void *priv_data),
1105 void *priv_data);
1106
1107 #if 0
1108 /* digest_encode.c */
1109 #define EXT2FS_DIGEST_SIZE EXT2FS_SHA256_LENGTH
1110 extern int ext2fs_digest_encode(const char *src, int len, char *dst);
1111 extern int ext2fs_digest_decode(const char *src, int len, char *dst);
1112 #endif
1113
1114 /* dirblock.c */
1115 extern errcode_t ext2fs_read_dir_block(ext2_filsys fs, blk_t block,
1116 void *buf);
1117 extern errcode_t ext2fs_read_dir_block2(ext2_filsys fs, blk_t block,
1118 void *buf, int flags);
1119 extern errcode_t ext2fs_read_dir_block3(ext2_filsys fs, blk64_t block,
1120 void *buf, int flags);
1121 extern errcode_t ext2fs_read_dir_block4(ext2_filsys fs, blk64_t block,
1122 void *buf, int flags, ext2_ino_t ino);
1123 extern errcode_t ext2fs_write_dir_block(ext2_filsys fs, blk_t block,
1124 void *buf);
1125 extern errcode_t ext2fs_write_dir_block2(ext2_filsys fs, blk_t block,
1126 void *buf, int flags);
1127 extern errcode_t ext2fs_write_dir_block3(ext2_filsys fs, blk64_t block,
1128 void *buf, int flags);
1129 extern errcode_t ext2fs_write_dir_block4(ext2_filsys fs, blk64_t block,
1130 void *buf, int flags, ext2_ino_t ino);
1131
1132 /* dirhash.c */
1133 extern errcode_t ext2fs_dirhash(int version, const char *name, int len,
1134 const __u32 *seed,
1135 ext2_dirhash_t *ret_hash,
1136 ext2_dirhash_t *ret_minor_hash);
1137
1138
1139 /* dir_iterate.c */
1140 extern errcode_t ext2fs_get_rec_len(ext2_filsys fs,
1141 struct ext2_dir_entry *dirent,
1142 unsigned int *rec_len);
1143 extern errcode_t ext2fs_set_rec_len(ext2_filsys fs,
1144 unsigned int len,
1145 struct ext2_dir_entry *dirent);
1146 extern errcode_t ext2fs_dir_iterate(ext2_filsys fs,
1147 ext2_ino_t dir,
1148 int flags,
1149 char *block_buf,
1150 int (*func)(struct ext2_dir_entry *dirent,
1151 int offset,
1152 int blocksize,
1153 char *buf,
1154 void *priv_data),
1155 void *priv_data);
1156 extern errcode_t ext2fs_dir_iterate2(ext2_filsys fs,
1157 ext2_ino_t dir,
1158 int flags,
1159 char *block_buf,
1160 int (*func)(ext2_ino_t dir,
1161 int entry,
1162 struct ext2_dir_entry *dirent,
1163 int offset,
1164 int blocksize,
1165 char *buf,
1166 void *priv_data),
1167 void *priv_data);
1168
1169 /* dupfs.c */
1170 extern errcode_t ext2fs_dup_handle(ext2_filsys src, ext2_filsys *dest);
1171
1172 /* expanddir.c */
1173 extern errcode_t ext2fs_expand_dir(ext2_filsys fs, ext2_ino_t dir);
1174
1175 /* ext_attr.c */
1176 extern __u32 ext2fs_ext_attr_hash_entry(struct ext2_ext_attr_entry *entry,
1177 void *data);
1178 extern errcode_t ext2fs_read_ext_attr(ext2_filsys fs, blk_t block, void *buf);
1179 extern errcode_t ext2fs_read_ext_attr2(ext2_filsys fs, blk64_t block,
1180 void *buf);
1181 extern errcode_t ext2fs_read_ext_attr3(ext2_filsys fs, blk64_t block,
1182 void *buf, ext2_ino_t inum);
1183 extern errcode_t ext2fs_write_ext_attr(ext2_filsys fs, blk_t block,
1184 void *buf);
1185 extern errcode_t ext2fs_write_ext_attr2(ext2_filsys fs, blk64_t block,
1186 void *buf);
1187 extern errcode_t ext2fs_write_ext_attr3(ext2_filsys fs, blk64_t block,
1188 void *buf, ext2_ino_t inum);
1189 extern errcode_t ext2fs_adjust_ea_refcount(ext2_filsys fs, blk_t blk,
1190 char *block_buf,
1191 int adjust, __u32 *newcount);
1192 extern errcode_t ext2fs_adjust_ea_refcount2(ext2_filsys fs, blk64_t blk,
1193 char *block_buf,
1194 int adjust, __u32 *newcount);
1195 extern errcode_t ext2fs_adjust_ea_refcount3(ext2_filsys fs, blk64_t blk,
1196 char *block_buf,
1197 int adjust, __u32 *newcount,
1198 ext2_ino_t inum);
1199 errcode_t ext2fs_xattrs_write(struct ext2_xattr_handle *handle);
1200 errcode_t ext2fs_xattrs_read(struct ext2_xattr_handle *handle);
1201 errcode_t ext2fs_xattrs_iterate(struct ext2_xattr_handle *h,
1202 int (*func)(char *name, char *value,
1203 size_t value_len, void *data),
1204 void *data);
1205 errcode_t ext2fs_xattr_get(struct ext2_xattr_handle *h, const char *key,
1206 void **value, size_t *value_len);
1207 errcode_t ext2fs_xattr_set(struct ext2_xattr_handle *handle,
1208 const char *key,
1209 const void *value,
1210 size_t value_len);
1211 errcode_t ext2fs_xattr_remove(struct ext2_xattr_handle *handle,
1212 const char *key);
1213 errcode_t ext2fs_xattrs_open(ext2_filsys fs, ext2_ino_t ino,
1214 struct ext2_xattr_handle **handle);
1215 errcode_t ext2fs_xattrs_close(struct ext2_xattr_handle **handle);
1216 errcode_t ext2fs_free_ext_attr(ext2_filsys fs, ext2_ino_t ino,
1217 struct ext2_inode_large *inode);
1218 errcode_t ext2fs_xattrs_count(struct ext2_xattr_handle *handle, size_t *count);
1219 errcode_t ext2fs_xattr_inode_max_size(ext2_filsys fs, ext2_ino_t ino,
1220 size_t *size);
1221 #define XATTR_HANDLE_FLAG_RAW 0x0001
1222 errcode_t ext2fs_xattrs_flags(struct ext2_xattr_handle *handle,
1223 unsigned int *new_flags, unsigned int *old_flags);
1224
1225 /* extent.c */
1226 extern errcode_t ext2fs_extent_header_verify(void *ptr, int size);
1227 extern errcode_t ext2fs_extent_open(ext2_filsys fs, ext2_ino_t ino,
1228 ext2_extent_handle_t *handle);
1229 extern errcode_t ext2fs_extent_open2(ext2_filsys fs, ext2_ino_t ino,
1230 struct ext2_inode *inode,
1231 ext2_extent_handle_t *ret_handle);
1232 extern void ext2fs_extent_free(ext2_extent_handle_t handle);
1233 extern errcode_t ext2fs_extent_get(ext2_extent_handle_t handle,
1234 int flags, struct ext2fs_extent *extent);
1235 extern errcode_t ext2fs_extent_node_split(ext2_extent_handle_t handle);
1236 extern errcode_t ext2fs_extent_replace(ext2_extent_handle_t handle, int flags,
1237 struct ext2fs_extent *extent);
1238 extern errcode_t ext2fs_extent_insert(ext2_extent_handle_t handle, int flags,
1239 struct ext2fs_extent *extent);
1240 extern errcode_t ext2fs_extent_set_bmap(ext2_extent_handle_t handle,
1241 blk64_t logical, blk64_t physical,
1242 int flags);
1243 extern errcode_t ext2fs_extent_delete(ext2_extent_handle_t handle, int flags);
1244 extern errcode_t ext2fs_extent_get_info(ext2_extent_handle_t handle,
1245 struct ext2_extent_info *info);
1246 extern errcode_t ext2fs_extent_goto(ext2_extent_handle_t handle,
1247 blk64_t blk);
1248 extern errcode_t ext2fs_extent_goto2(ext2_extent_handle_t handle,
1249 int leaf_level, blk64_t blk);
1250 extern errcode_t ext2fs_extent_fix_parents(ext2_extent_handle_t handle);
1251 size_t ext2fs_max_extent_depth(ext2_extent_handle_t handle);
1252
1253 /* fallocate.c */
1254 #define EXT2_FALLOCATE_ZERO_BLOCKS (0x1)
1255 #define EXT2_FALLOCATE_FORCE_INIT (0x2)
1256 #define EXT2_FALLOCATE_FORCE_UNINIT (0x4)
1257 #define EXT2_FALLOCATE_INIT_BEYOND_EOF (0x8)
1258 #define EXT2_FALLOCATE_ALL_FLAGS (0xF)
1259 errcode_t ext2fs_fallocate(ext2_filsys fs, int flags, ext2_ino_t ino,
1260 struct ext2_inode *inode, blk64_t goal,
1261 blk64_t start, blk64_t len);
1262
1263 /* fileio.c */
1264 extern errcode_t ext2fs_file_open2(ext2_filsys fs, ext2_ino_t ino,
1265 struct ext2_inode *inode,
1266 int flags, ext2_file_t *ret);
1267 extern errcode_t ext2fs_file_open(ext2_filsys fs, ext2_ino_t ino,
1268 int flags, ext2_file_t *ret);
1269 extern ext2_filsys ext2fs_file_get_fs(ext2_file_t file);
1270 struct ext2_inode *ext2fs_file_get_inode(ext2_file_t file);
1271 extern ext2_ino_t ext2fs_file_get_inode_num(ext2_file_t file);
1272 extern errcode_t ext2fs_file_close(ext2_file_t file);
1273 extern errcode_t ext2fs_file_flush(ext2_file_t file);
1274 extern errcode_t ext2fs_file_read(ext2_file_t file, void *buf,
1275 unsigned int wanted, unsigned int *got);
1276 extern errcode_t ext2fs_file_write(ext2_file_t file, const void *buf,
1277 unsigned int nbytes, unsigned int *written);
1278 extern errcode_t ext2fs_file_llseek(ext2_file_t file, __u64 offset,
1279 int whence, __u64 *ret_pos);
1280 extern errcode_t ext2fs_file_lseek(ext2_file_t file, ext2_off_t offset,
1281 int whence, ext2_off_t *ret_pos);
1282 errcode_t ext2fs_file_get_lsize(ext2_file_t file, __u64 *ret_size);
1283 extern ext2_off_t ext2fs_file_get_size(ext2_file_t file);
1284 extern errcode_t ext2fs_file_set_size(ext2_file_t file, ext2_off_t size);
1285 extern errcode_t ext2fs_file_set_size2(ext2_file_t file, ext2_off64_t size);
1286
1287 /* finddev.c */
1288 extern char *ext2fs_find_block_device(dev_t device);
1289
1290 /* flushb.c */
1291 extern errcode_t ext2fs_sync_device(int fd, int flushb);
1292
1293 /* freefs.c */
1294 extern void ext2fs_free(ext2_filsys fs);
1295 extern void ext2fs_free_dblist(ext2_dblist dblist);
1296 extern void ext2fs_badblocks_list_free(ext2_badblocks_list bb);
1297 extern void ext2fs_u32_list_free(ext2_u32_list bb);
1298
1299 /* gen_bitmap.c */
1300 extern void ext2fs_free_generic_bitmap(ext2fs_inode_bitmap bitmap);
1301 extern errcode_t ext2fs_make_generic_bitmap(errcode_t magic, ext2_filsys fs,
1302 __u32 start, __u32 end,
1303 __u32 real_end,
1304 const char *descr, char *init_map,
1305 ext2fs_generic_bitmap *ret);
1306 extern errcode_t ext2fs_allocate_generic_bitmap(__u32 start,
1307 __u32 end,
1308 __u32 real_end,
1309 const char *descr,
1310 ext2fs_generic_bitmap *ret);
1311 extern errcode_t ext2fs_copy_generic_bitmap(ext2fs_generic_bitmap src,
1312 ext2fs_generic_bitmap *dest);
1313 extern void ext2fs_clear_generic_bitmap(ext2fs_generic_bitmap bitmap);
1314 extern errcode_t ext2fs_fudge_generic_bitmap_end(ext2fs_inode_bitmap bitmap,
1315 errcode_t magic,
1316 errcode_t neq,
1317 ext2_ino_t end,
1318 ext2_ino_t *oend);
1319 extern void ext2fs_set_generic_bitmap_padding(ext2fs_generic_bitmap map);
1320 extern errcode_t ext2fs_resize_generic_bitmap(errcode_t magic,
1321 __u32 new_end,
1322 __u32 new_real_end,
1323 ext2fs_generic_bitmap bmap);
1324 extern errcode_t ext2fs_compare_generic_bitmap(errcode_t magic, errcode_t neq,
1325 ext2fs_generic_bitmap bm1,
1326 ext2fs_generic_bitmap bm2);
1327 extern errcode_t ext2fs_get_generic_bitmap_range(ext2fs_generic_bitmap bmap,
1328 errcode_t magic,
1329 __u32 start, __u32 num,
1330 void *out);
1331 extern errcode_t ext2fs_set_generic_bitmap_range(ext2fs_generic_bitmap bmap,
1332 errcode_t magic,
1333 __u32 start, __u32 num,
1334 void *in);
1335 extern errcode_t ext2fs_find_first_zero_generic_bitmap(ext2fs_generic_bitmap bitmap,
1336 __u32 start, __u32 end,
1337 __u32 *out);
1338 extern errcode_t ext2fs_find_first_set_generic_bitmap(ext2fs_generic_bitmap bitmap,
1339 __u32 start, __u32 end,
1340 __u32 *out);
1341
1342 /* gen_bitmap64.c */
1343 void ext2fs_free_generic_bmap(ext2fs_generic_bitmap bmap);
1344 errcode_t ext2fs_alloc_generic_bmap(ext2_filsys fs, errcode_t magic,
1345 int type, __u64 start, __u64 end,
1346 __u64 real_end,
1347 const char *descr,
1348 ext2fs_generic_bitmap *ret);
1349 errcode_t ext2fs_copy_generic_bmap(ext2fs_generic_bitmap src,
1350 ext2fs_generic_bitmap *dest);
1351 void ext2fs_clear_generic_bmap(ext2fs_generic_bitmap bitmap);
1352 errcode_t ext2fs_fudge_generic_bmap_end(ext2fs_generic_bitmap bitmap,
1353 errcode_t neq,
1354 __u64 end, __u64 *oend);
1355 void ext2fs_set_generic_bmap_padding(ext2fs_generic_bitmap bmap);
1356 errcode_t ext2fs_resize_generic_bmap(ext2fs_generic_bitmap bmap,
1357 __u64 new_end,
1358 __u64 new_real_end);
1359 errcode_t ext2fs_compare_generic_bmap(errcode_t neq,
1360 ext2fs_generic_bitmap bm1,
1361 ext2fs_generic_bitmap bm2);
1362 errcode_t ext2fs_get_generic_bmap_range(ext2fs_generic_bitmap bmap,
1363 __u64 start, unsigned int num,
1364 void *out);
1365 errcode_t ext2fs_set_generic_bmap_range(ext2fs_generic_bitmap bmap,
1366 __u64 start, unsigned int num,
1367 void *in);
1368 errcode_t ext2fs_convert_subcluster_bitmap(ext2_filsys fs,
1369 ext2fs_block_bitmap *bitmap);
1370
1371 /* get_num_dirs.c */
1372 extern errcode_t ext2fs_get_num_dirs(ext2_filsys fs, ext2_ino_t *ret_num_dirs);
1373
1374 /* getsize.c */
1375 extern errcode_t ext2fs_get_device_size(const char *file, int blocksize,
1376 blk_t *retblocks);
1377 extern errcode_t ext2fs_get_device_size2(const char *file, int blocksize,
1378 blk64_t *retblocks);
1379
1380 /* getsectsize.c */
1381 extern int ext2fs_get_dio_alignment(int fd);
1382 errcode_t ext2fs_get_device_sectsize(const char *file, int *sectsize);
1383 errcode_t ext2fs_get_device_phys_sectsize(const char *file, int *sectsize);
1384
1385 /* i_block.c */
1386 errcode_t ext2fs_iblk_add_blocks(ext2_filsys fs, struct ext2_inode *inode,
1387 blk64_t num_blocks);
1388 errcode_t ext2fs_iblk_sub_blocks(ext2_filsys fs, struct ext2_inode *inode,
1389 blk64_t num_blocks);
1390 errcode_t ext2fs_iblk_set(ext2_filsys fs, struct ext2_inode *inode, blk64_t b);
1391
1392 /* imager.c */
1393 extern errcode_t ext2fs_image_inode_write(ext2_filsys fs, int fd, int flags);
1394 extern errcode_t ext2fs_image_inode_read(ext2_filsys fs, int fd, int flags);
1395 extern errcode_t ext2fs_image_super_write(ext2_filsys fs, int fd, int flags);
1396 extern errcode_t ext2fs_image_super_read(ext2_filsys fs, int fd, int flags);
1397 extern errcode_t ext2fs_image_bitmap_write(ext2_filsys fs, int fd, int flags);
1398 extern errcode_t ext2fs_image_bitmap_read(ext2_filsys fs, int fd, int flags);
1399
1400 /* ind_block.c */
1401 errcode_t ext2fs_read_ind_block(ext2_filsys fs, blk_t blk, void *buf);
1402 errcode_t ext2fs_write_ind_block(ext2_filsys fs, blk_t blk, void *buf);
1403
1404 /* initialize.c */
1405 extern errcode_t ext2fs_initialize(const char *name, int flags,
1406 struct ext2_super_block *param,
1407 io_manager manager, ext2_filsys *ret_fs);
1408
1409 /* icount.c */
1410 extern void ext2fs_free_icount(ext2_icount_t icount);
1411 extern errcode_t ext2fs_create_icount_tdb(ext2_filsys fs, char *tdb_dir,
1412 int flags, ext2_icount_t *ret);
1413 extern errcode_t ext2fs_create_icount2(ext2_filsys fs, int flags,
1414 unsigned int size,
1415 ext2_icount_t hint, ext2_icount_t *ret);
1416 extern errcode_t ext2fs_create_icount(ext2_filsys fs, int flags,
1417 unsigned int size,
1418 ext2_icount_t *ret);
1419 extern errcode_t ext2fs_icount_fetch(ext2_icount_t icount, ext2_ino_t ino,
1420 __u16 *ret);
1421 extern errcode_t ext2fs_icount_increment(ext2_icount_t icount, ext2_ino_t ino,
1422 __u16 *ret);
1423 extern errcode_t ext2fs_icount_decrement(ext2_icount_t icount, ext2_ino_t ino,
1424 __u16 *ret);
1425 extern errcode_t ext2fs_icount_store(ext2_icount_t icount, ext2_ino_t ino,
1426 __u16 count);
1427 extern ext2_ino_t ext2fs_get_icount_size(ext2_icount_t icount);
1428 errcode_t ext2fs_icount_validate(ext2_icount_t icount, FILE *);
1429
1430 /* inline.c */
1431
1432 extern errcode_t ext2fs_get_memalign(unsigned long size,
1433 unsigned long align, void *ptr);
1434
1435 /* inline_data.c */
1436 extern errcode_t ext2fs_inline_data_init(ext2_filsys fs, ext2_ino_t ino);
1437 extern errcode_t ext2fs_inline_data_size(ext2_filsys fs, ext2_ino_t ino,
1438 size_t *size);
1439 extern errcode_t ext2fs_inline_data_get(ext2_filsys fs, ext2_ino_t ino,
1440 struct ext2_inode *inode,
1441 void *buf, size_t *size);
1442 extern errcode_t ext2fs_inline_data_set(ext2_filsys fs, ext2_ino_t ino,
1443 struct ext2_inode *inode,
1444 void *buf, size_t size);
1445
1446 /* inode.c */
1447 extern errcode_t ext2fs_create_inode_cache(ext2_filsys fs,
1448 unsigned int cache_size);
1449 extern void ext2fs_free_inode_cache(struct ext2_inode_cache *icache);
1450 extern errcode_t ext2fs_flush_icache(ext2_filsys fs);
1451 extern errcode_t ext2fs_get_next_inode_full(ext2_inode_scan scan,
1452 ext2_ino_t *ino,
1453 struct ext2_inode *inode,
1454 int bufsize);
1455 #define EXT2_INODE_SCAN_DEFAULT_BUFFER_BLOCKS 8
1456 extern errcode_t ext2fs_open_inode_scan(ext2_filsys fs, int buffer_blocks,
1457 ext2_inode_scan *ret_scan);
1458 extern void ext2fs_close_inode_scan(ext2_inode_scan scan);
1459 extern errcode_t ext2fs_get_next_inode(ext2_inode_scan scan, ext2_ino_t *ino,
1460 struct ext2_inode *inode);
1461 extern errcode_t ext2fs_inode_scan_goto_blockgroup(ext2_inode_scan scan,
1462 int group);
1463 extern void ext2fs_set_inode_callback
1464 (ext2_inode_scan scan,
1465 errcode_t (*done_group)(ext2_filsys fs,
1466 ext2_inode_scan scan,
1467 dgrp_t group,
1468 void * priv_data),
1469 void *done_group_data);
1470 extern int ext2fs_inode_scan_flags(ext2_inode_scan scan, int set_flags,
1471 int clear_flags);
1472 extern errcode_t ext2fs_read_inode_full(ext2_filsys fs, ext2_ino_t ino,
1473 struct ext2_inode * inode,
1474 int bufsize);
1475 extern errcode_t ext2fs_read_inode (ext2_filsys fs, ext2_ino_t ino,
1476 struct ext2_inode * inode);
1477 extern errcode_t ext2fs_write_inode_full(ext2_filsys fs, ext2_ino_t ino,
1478 struct ext2_inode * inode,
1479 int bufsize);
1480 extern errcode_t ext2fs_write_inode(ext2_filsys fs, ext2_ino_t ino,
1481 struct ext2_inode * inode);
1482 extern errcode_t ext2fs_write_new_inode(ext2_filsys fs, ext2_ino_t ino,
1483 struct ext2_inode * inode);
1484 extern errcode_t ext2fs_get_blocks(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
1485 extern errcode_t ext2fs_check_directory(ext2_filsys fs, ext2_ino_t ino);
1486
1487 /* inode_io.c */
1488 extern io_manager inode_io_manager;
1489 extern errcode_t ext2fs_inode_io_intern(ext2_filsys fs, ext2_ino_t ino,
1490 char **name);
1491 extern errcode_t ext2fs_inode_io_intern2(ext2_filsys fs, ext2_ino_t ino,
1492 struct ext2_inode *inode,
1493 char **name);
1494
1495 /* ismounted.c */
1496 extern errcode_t ext2fs_check_if_mounted(const char *file, int *mount_flags);
1497 extern errcode_t ext2fs_check_mount_point(const char *device, int *mount_flags,
1498 char *mtpt, int mtlen);
1499
1500 /* punch.c */
1501 /*
1502 * NOTE: This function removes from an inode the blocks "start", "end", and
1503 * every block in between.
1504 */
1505 extern errcode_t ext2fs_punch(ext2_filsys fs, ext2_ino_t ino,
1506 struct ext2_inode *inode,
1507 char *block_buf, blk64_t start,
1508 blk64_t end);
1509
1510 /* namei.c */
1511 extern errcode_t ext2fs_lookup(ext2_filsys fs, ext2_ino_t dir, const char *name,
1512 int namelen, char *buf, ext2_ino_t *inode);
1513 extern errcode_t ext2fs_namei(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1514 const char *name, ext2_ino_t *inode);
1515 errcode_t ext2fs_namei_follow(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1516 const char *name, ext2_ino_t *inode);
1517 extern errcode_t ext2fs_follow_link(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1518 ext2_ino_t inode, ext2_ino_t *res_inode);
1519
1520 /* native.c */
1521 int ext2fs_native_flag(void);
1522
1523 /* newdir.c */
1524 extern errcode_t ext2fs_new_dir_block(ext2_filsys fs, ext2_ino_t dir_ino,
1525 ext2_ino_t parent_ino, char **block);
1526 extern errcode_t ext2fs_new_dir_inline_data(ext2_filsys fs, ext2_ino_t dir_ino,
1527 ext2_ino_t parent_ino, __u32 *iblock);
1528
1529 /* mkdir.c */
1530 extern errcode_t ext2fs_mkdir(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t inum,
1531 const char *name);
1532
1533 /* mkjournal.c */
1534 extern errcode_t ext2fs_zero_blocks(ext2_filsys fs, blk_t blk, int num,
1535 blk_t *ret_blk, int *ret_count);
1536 extern errcode_t ext2fs_zero_blocks2(ext2_filsys fs, blk64_t blk, int num,
1537 blk64_t *ret_blk, int *ret_count);
1538 extern errcode_t ext2fs_create_journal_superblock(ext2_filsys fs,
1539 __u32 num_blocks, int flags,
1540 char **ret_jsb);
1541 extern errcode_t ext2fs_add_journal_device(ext2_filsys fs,
1542 ext2_filsys journal_dev);
1543 extern errcode_t ext2fs_add_journal_inode(ext2_filsys fs, blk_t num_blocks,
1544 int flags);
1545 extern errcode_t ext2fs_add_journal_inode2(ext2_filsys fs, blk_t num_blocks,
1546 blk64_t goal, int flags);
1547 extern int ext2fs_default_journal_size(__u64 num_blocks);
1548 extern int ext2fs_journal_sb_start(int blocksize);
1549
1550 /* openfs.c */
1551 extern errcode_t ext2fs_open(const char *name, int flags, int superblock,
1552 unsigned int block_size, io_manager manager,
1553 ext2_filsys *ret_fs);
1554 extern errcode_t ext2fs_open2(const char *name, const char *io_options,
1555 int flags, int superblock,
1556 unsigned int block_size, io_manager manager,
1557 ext2_filsys *ret_fs);
1558 /*
1559 * The dgrp_t argument to these two functions is not actually a group number
1560 * but a block number offset within a group table! Convert with the formula
1561 * (group_number / groups_per_block).
1562 */
1563 extern blk64_t ext2fs_descriptor_block_loc2(ext2_filsys fs,
1564 blk64_t group_block, dgrp_t i);
1565 extern blk_t ext2fs_descriptor_block_loc(ext2_filsys fs, blk_t group_block,
1566 dgrp_t i);
1567 errcode_t ext2fs_get_data_io(ext2_filsys fs, io_channel *old_io);
1568 errcode_t ext2fs_set_data_io(ext2_filsys fs, io_channel new_io);
1569 errcode_t ext2fs_rewrite_to_io(ext2_filsys fs, io_channel new_io);
1570
1571 /* get_pathname.c */
1572 extern errcode_t ext2fs_get_pathname(ext2_filsys fs, ext2_ino_t dir, ext2_ino_t ino,
1573 char **name);
1574
1575 /* link.c */
1576 errcode_t ext2fs_link(ext2_filsys fs, ext2_ino_t dir, const char *name,
1577 ext2_ino_t ino, int flags);
1578 errcode_t ext2fs_unlink(ext2_filsys fs, ext2_ino_t dir, const char *name,
1579 ext2_ino_t ino, int flags);
1580
1581 /* symlink.c */
1582 errcode_t ext2fs_symlink(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t ino,
1583 const char *name, const char *target);
1584
1585 /* mmp.c */
1586 errcode_t ext2fs_mmp_read(ext2_filsys fs, blk64_t mmp_blk, void *buf);
1587 errcode_t ext2fs_mmp_write(ext2_filsys fs, blk64_t mmp_blk, void *buf);
1588 errcode_t ext2fs_mmp_clear(ext2_filsys fs);
1589 errcode_t ext2fs_mmp_init(ext2_filsys fs);
1590 errcode_t ext2fs_mmp_start(ext2_filsys fs);
1591 errcode_t ext2fs_mmp_update(ext2_filsys fs);
1592 errcode_t ext2fs_mmp_update2(ext2_filsys fs, int immediately);
1593 errcode_t ext2fs_mmp_stop(ext2_filsys fs);
1594 unsigned ext2fs_mmp_new_seq(void);
1595
1596 /* read_bb.c */
1597 extern errcode_t ext2fs_read_bb_inode(ext2_filsys fs,
1598 ext2_badblocks_list *bb_list);
1599
1600 /* read_bb_file.c */
1601 extern errcode_t ext2fs_read_bb_FILE2(ext2_filsys fs, FILE *f,
1602 ext2_badblocks_list *bb_list,
1603 void *priv_data,
1604 void (*invalid)(ext2_filsys fs,
1605 blk_t blk,
1606 char *badstr,
1607 void *priv_data));
1608 extern errcode_t ext2fs_read_bb_FILE(ext2_filsys fs, FILE *f,
1609 ext2_badblocks_list *bb_list,
1610 void (*invalid)(ext2_filsys fs,
1611 blk_t blk));
1612
1613 /* res_gdt.c */
1614 extern errcode_t ext2fs_create_resize_inode(ext2_filsys fs);
1615
1616 /*sha256.c */
1617 #define EXT2FS_SHA256_LENGTH 32
1618 #if 0
1619 extern void ext2fs_sha256(const unsigned char *in, unsigned long in_size,
1620 unsigned char out[EXT2FS_SHA256_LENGTH]);
1621 #endif
1622
1623 /* sha512.c */
1624 #define EXT2FS_SHA512_LENGTH 64
1625 extern void ext2fs_sha512(const unsigned char *in, unsigned long in_size,
1626 unsigned char out[EXT2FS_SHA512_LENGTH]);
1627
1628 /* swapfs.c */
1629 extern errcode_t ext2fs_dirent_swab_in2(ext2_filsys fs, char *buf, size_t size,
1630 int flags);
1631 extern errcode_t ext2fs_dirent_swab_in(ext2_filsys fs, char *buf, int flags);
1632 extern errcode_t ext2fs_dirent_swab_out2(ext2_filsys fs, char *buf, size_t size,
1633 int flags);
1634 extern errcode_t ext2fs_dirent_swab_out(ext2_filsys fs, char *buf, int flags);
1635 extern void ext2fs_swap_ext_attr(char *to, char *from, int bufsize,
1636 int has_header);
1637 extern void ext2fs_swap_ext_attr_header(struct ext2_ext_attr_header *to_header,
1638 struct ext2_ext_attr_header *from_hdr);
1639 extern void ext2fs_swap_ext_attr_entry(struct ext2_ext_attr_entry *to_entry,
1640 struct ext2_ext_attr_entry *from_entry);
1641 extern void ext2fs_swap_super(struct ext2_super_block * super);
1642 extern void ext2fs_swap_group_desc(struct ext2_group_desc *gdp);
1643 extern void ext2fs_swap_group_desc2(ext2_filsys, struct ext2_group_desc *gdp);
1644 extern void ext2fs_swap_inode_full(ext2_filsys fs, struct ext2_inode_large *t,
1645 struct ext2_inode_large *f, int hostorder,
1646 int bufsize);
1647 extern void ext2fs_swap_inode(ext2_filsys fs,struct ext2_inode *t,
1648 struct ext2_inode *f, int hostorder);
1649 extern void ext2fs_swap_mmp(struct mmp_struct *mmp);
1650
1651 /* unix_io.c */
1652 extern int ext2fs_open_file(const char *pathname, int flags, mode_t mode);
1653 extern int ext2fs_stat(const char *path, ext2fs_struct_stat *buf);
1654 extern int ext2fs_fstat(int fd, ext2fs_struct_stat *buf);
1655
1656 /* valid_blk.c */
1657 extern int ext2fs_inode_has_valid_blocks(struct ext2_inode *inode);
1658 extern int ext2fs_inode_has_valid_blocks2(ext2_filsys fs,
1659 struct ext2_inode *inode);
1660
1661 /* version.c */
1662 extern int ext2fs_parse_version_string(const char *ver_string);
1663 extern int ext2fs_get_library_version(const char **ver_string,
1664 const char **date_string);
1665
1666 /* write_bb_file.c */
1667 extern errcode_t ext2fs_write_bb_FILE(ext2_badblocks_list bb_list,
1668 unsigned int flags,
1669 FILE *f);
1670
1671
1672 /* inline functions */
1673 #ifdef NO_INLINE_FUNCS
1674 extern errcode_t ext2fs_get_mem(unsigned long size, void *ptr);
1675 extern errcode_t ext2fs_get_memzero(unsigned long size, void *ptr);
1676 extern errcode_t ext2fs_get_array(unsigned long count,
1677 unsigned long size, void *ptr);
1678 extern errcode_t ext2fs_get_arrayzero(unsigned long count,
1679 unsigned long size, void *ptr);
1680 extern errcode_t ext2fs_free_mem(void *ptr);
1681 extern errcode_t ext2fs_resize_mem(unsigned long old_size,
1682 unsigned long size, void *ptr);
1683 extern void ext2fs_mark_super_dirty(ext2_filsys fs);
1684 extern void ext2fs_mark_changed(ext2_filsys fs);
1685 extern int ext2fs_test_changed(ext2_filsys fs);
1686 extern void ext2fs_mark_valid(ext2_filsys fs);
1687 extern void ext2fs_unmark_valid(ext2_filsys fs);
1688 extern int ext2fs_test_valid(ext2_filsys fs);
1689 extern void ext2fs_mark_ib_dirty(ext2_filsys fs);
1690 extern void ext2fs_mark_bb_dirty(ext2_filsys fs);
1691 extern int ext2fs_test_ib_dirty(ext2_filsys fs);
1692 extern int ext2fs_test_bb_dirty(ext2_filsys fs);
1693 extern dgrp_t ext2fs_group_of_blk(ext2_filsys fs, blk_t blk);
1694 extern dgrp_t ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino);
1695 extern blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group);
1696 extern blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group);
1697 extern blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
1698 struct ext2_inode *inode);
1699 extern unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b);
1700 extern __u64 ext2fs_div64_ceil(__u64 a, __u64 b);
1701 extern int ext2fs_dirent_name_len(const struct ext2_dir_entry *entry);
1702 extern void ext2fs_dirent_set_name_len(struct ext2_dir_entry *entry, int len);
1703 extern int ext2fs_dirent_file_type(const struct ext2_dir_entry *entry);
1704 extern void ext2fs_dirent_set_file_type(struct ext2_dir_entry *entry, int type);
1705 extern struct ext2_inode *ext2fs_inode(struct ext2_inode_large * large_inode);
1706 extern const struct ext2_inode *ext2fs_const_inode(const struct ext2_inode_large * large_inode);
1707
1708 #endif
1709
1710 /*
1711 * The actual inlined functions definitions themselves...
1712 *
1713 * If NO_INLINE_FUNCS is defined, then we won't try to do inline
1714 * functions at all!
1715 */
1716 #if (defined(INCLUDE_INLINE_FUNCS) || !defined(NO_INLINE_FUNCS))
1717 #ifdef INCLUDE_INLINE_FUNCS
1718 #define _INLINE_ extern
1719 #else
1720 #if (__STDC_VERSION__ >= 199901L)
1721 #define _INLINE_ inline
1722 #else
1723 #ifdef __GNUC__
1724 #define _INLINE_ extern __inline__
1725 #else /* For Watcom C */
1726 #define _INLINE_ extern inline
1727 #endif /* __GNUC__ */
1728 #endif /* __STDC_VERSION__ >= 199901L */
1729 #endif
1730
1731 #ifndef EXT2_CUSTOM_MEMORY_ROUTINES
1732 #include <string.h>
1733 /*
1734 * Allocate memory. The 'ptr' arg must point to a pointer.
1735 */
1736 _INLINE_ errcode_t ext2fs_get_mem(unsigned long size, void *ptr)
1737 {
1738 void *pp;
1739
1740 pp = malloc(size);
1741 if (!pp)
1742 return EXT2_ET_NO_MEMORY;
1743 memcpy(ptr, &pp, sizeof (pp));
1744 return 0;
1745 }
1746
1747 _INLINE_ errcode_t ext2fs_get_memzero(unsigned long size, void *ptr)
1748 {
1749 void *pp;
1750
1751 pp = malloc(size);
1752 if (!pp)
1753 return EXT2_ET_NO_MEMORY;
1754 memset(pp, 0, size);
1755 memcpy(ptr, &pp, sizeof(pp));
1756 return 0;
1757 }
1758
1759 _INLINE_ errcode_t ext2fs_get_array(unsigned long count, unsigned long size, void *ptr)
1760 {
1761 if (count && (~0UL)/count < size)
1762 return EXT2_ET_NO_MEMORY;
1763 return ext2fs_get_mem(count*size, ptr);
1764 }
1765
1766 _INLINE_ errcode_t ext2fs_get_arrayzero(unsigned long count,
1767 unsigned long size, void *ptr)
1768 {
1769 void *pp;
1770
1771 if (count && (~0UL)/count < size)
1772 return EXT2_ET_NO_MEMORY;
1773 pp = calloc(count, size);
1774 if (!pp)
1775 return EXT2_ET_NO_MEMORY;
1776 memcpy(ptr, &pp, sizeof(pp));
1777 return 0;
1778 }
1779
1780 /*
1781 * Free memory. The 'ptr' arg must point to a pointer.
1782 */
1783 _INLINE_ errcode_t ext2fs_free_mem(void *ptr)
1784 {
1785 void *p;
1786
1787 memcpy(&p, ptr, sizeof(p));
1788 free(p);
1789 p = 0;
1790 memcpy(ptr, &p, sizeof(p));
1791 return 0;
1792 }
1793
1794 /*
1795 * Resize memory. The 'ptr' arg must point to a pointer.
1796 */
1797 _INLINE_ errcode_t ext2fs_resize_mem(unsigned long EXT2FS_ATTR((unused)) old_size,
1798 unsigned long size, void *ptr)
1799 {
1800 void *p;
1801
1802 /* Use "memcpy" for pointer assignments here to avoid problems
1803 * with C99 strict type aliasing rules. */
1804 memcpy(&p, ptr, sizeof(p));
1805 p = realloc(p, size);
1806 if (!p)
1807 return EXT2_ET_NO_MEMORY;
1808 memcpy(ptr, &p, sizeof(p));
1809 return 0;
1810 }
1811 #endif /* Custom memory routines */
1812
1813 /*
1814 * Mark a filesystem superblock as dirty
1815 */
1816 _INLINE_ void ext2fs_mark_super_dirty(ext2_filsys fs)
1817 {
1818 fs->flags |= EXT2_FLAG_DIRTY | EXT2_FLAG_CHANGED;
1819 }
1820
1821 /*
1822 * Mark a filesystem as changed
1823 */
1824 _INLINE_ void ext2fs_mark_changed(ext2_filsys fs)
1825 {
1826 fs->flags |= EXT2_FLAG_CHANGED;
1827 }
1828
1829 /*
1830 * Check to see if a filesystem has changed
1831 */
1832 _INLINE_ int ext2fs_test_changed(ext2_filsys fs)
1833 {
1834 return (fs->flags & EXT2_FLAG_CHANGED);
1835 }
1836
1837 /*
1838 * Mark a filesystem as valid
1839 */
1840 _INLINE_ void ext2fs_mark_valid(ext2_filsys fs)
1841 {
1842 fs->flags |= EXT2_FLAG_VALID;
1843 }
1844
1845 /*
1846 * Mark a filesystem as NOT valid
1847 */
1848 _INLINE_ void ext2fs_unmark_valid(ext2_filsys fs)
1849 {
1850 fs->flags &= ~EXT2_FLAG_VALID;
1851 }
1852
1853 /*
1854 * Check to see if a filesystem is valid
1855 */
1856 _INLINE_ int ext2fs_test_valid(ext2_filsys fs)
1857 {
1858 return (fs->flags & EXT2_FLAG_VALID);
1859 }
1860
1861 /*
1862 * Mark the inode bitmap as dirty
1863 */
1864 _INLINE_ void ext2fs_mark_ib_dirty(ext2_filsys fs)
1865 {
1866 fs->flags |= EXT2_FLAG_IB_DIRTY | EXT2_FLAG_CHANGED;
1867 }
1868
1869 /*
1870 * Mark the block bitmap as dirty
1871 */
1872 _INLINE_ void ext2fs_mark_bb_dirty(ext2_filsys fs)
1873 {
1874 fs->flags |= EXT2_FLAG_BB_DIRTY | EXT2_FLAG_CHANGED;
1875 }
1876
1877 /*
1878 * Check to see if a filesystem's inode bitmap is dirty
1879 */
1880 _INLINE_ int ext2fs_test_ib_dirty(ext2_filsys fs)
1881 {
1882 return (fs->flags & EXT2_FLAG_IB_DIRTY);
1883 }
1884
1885 /*
1886 * Check to see if a filesystem's block bitmap is dirty
1887 */
1888 _INLINE_ int ext2fs_test_bb_dirty(ext2_filsys fs)
1889 {
1890 return (fs->flags & EXT2_FLAG_BB_DIRTY);
1891 }
1892
1893 /*
1894 * Return the group # of a block
1895 */
1896 _INLINE_ dgrp_t ext2fs_group_of_blk(ext2_filsys fs, blk_t blk)
1897 {
1898 return ext2fs_group_of_blk2(fs, blk);
1899 }
1900 /*
1901 * Return the group # of an inode number
1902 */
1903 _INLINE_ dgrp_t ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino)
1904 {
1905 return (ino - 1) / fs->super->s_inodes_per_group;
1906 }
1907
1908 /*
1909 * Return the first block (inclusive) in a group
1910 */
1911 _INLINE_ blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group)
1912 {
1913 return (blk_t) ext2fs_group_first_block2(fs, group);
1914 }
1915
1916 /*
1917 * Return the last block (inclusive) in a group
1918 */
1919 _INLINE_ blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group)
1920 {
1921 return (blk_t) ext2fs_group_last_block2(fs, group);
1922 }
1923
1924 _INLINE_ blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
1925 struct ext2_inode *inode)
1926 {
1927 return (blk_t) ext2fs_inode_data_blocks2(fs, inode);
1928 }
1929
1930 /*
1931 * This is an efficient, overflow safe way of calculating ceil((1.0 * a) / b)
1932 */
1933 _INLINE_ unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b)
1934 {
1935 if (!a)
1936 return 0;
1937 return ((a - 1) / b) + 1;
1938 }
1939
1940 _INLINE_ __u64 ext2fs_div64_ceil(__u64 a, __u64 b)
1941 {
1942 if (!a)
1943 return 0;
1944 return ((a - 1) / b) + 1;
1945 }
1946
1947 _INLINE_ int ext2fs_dirent_name_len(const struct ext2_dir_entry *entry)
1948 {
1949 return entry->name_len & 0xff;
1950 }
1951
1952 _INLINE_ void ext2fs_dirent_set_name_len(struct ext2_dir_entry *entry, int len)
1953 {
1954 entry->name_len = (entry->name_len & 0xff00) | (len & 0xff);
1955 }
1956
1957 _INLINE_ int ext2fs_dirent_file_type(const struct ext2_dir_entry *entry)
1958 {
1959 return entry->name_len >> 8;
1960 }
1961
1962 _INLINE_ void ext2fs_dirent_set_file_type(struct ext2_dir_entry *entry, int type)
1963 {
1964 entry->name_len = (entry->name_len & 0xff) | (type << 8);
1965 }
1966
1967 _INLINE_ struct ext2_inode *ext2fs_inode(struct ext2_inode_large * large_inode)
1968 {
1969 /* It is always safe to convert large inode to a small inode */
1970 return (struct ext2_inode *) large_inode;
1971 }
1972
1973 _INLINE_ const struct ext2_inode *
1974 ext2fs_const_inode(const struct ext2_inode_large * large_inode)
1975 {
1976 /* It is always safe to convert large inode to a small inode */
1977 return (const struct ext2_inode *) large_inode;
1978 }
1979
1980 #undef _INLINE_
1981 #endif
1982
1983 #ifdef __cplusplus
1984 }
1985 #endif
1986
1987 #endif /* _EXT2FS_EXT2FS_H */
Unnamed repository; edit this file 'description' to name the repository.