4 * Copyright (C) 1993, 1994, 1995, 1996 Theodore Ts'o.
7 * This file may be redistributed under the terms of the GNU Public
12 #ifndef _EXT2FS_EXT2FS_H
13 #define _EXT2FS_EXT2FS_H
16 #define EXT2FS_ATTR(x) __attribute__(x)
18 #define EXT2FS_ATTR(x)
26 * Non-GNU C compilers won't necessarily understand inline
28 #if (!defined(__GNUC__) && !defined(__WATCOMC__))
29 #define NO_INLINE_FUNCS
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
39 #define SUPERBLOCK_OFFSET 1024
40 #define SUPERBLOCK_SIZE 1024
43 * The last ext2fs revision level that this version of the library is
46 #define EXT2_LIB_CURRENT_REV EXT2_DYNAMIC_REV
48 #ifdef HAVE_SYS_TYPES_H
49 #include <sys/types.h>
56 #if EXT2_FLAT_INCLUDES
59 #include "ext3_extents.h"
61 #include <ext2fs/ext2_types.h>
62 #include <ext2fs/ext2_fs.h>
63 #include <ext2fs/ext3_extents.h>
64 #endif /* EXT2_FLAT_INCLUDES */
66 typedef __u32 ext2_ino_t;
68 typedef __u64 blk64_t;
70 typedef __u32 ext2_off_t;
71 typedef __u64 ext2_off64_t;
72 typedef __s64 e2_blkcnt_t;
73 typedef __u32 ext2_dirhash_t;
75 #if EXT2_FLAT_INCLUDES
79 #include "ext2_ext_attr.h"
81 #include <et/com_err.h>
82 #include <ext2fs/ext2_io.h>
83 #include <ext2fs/ext2_err.h>
84 #include <ext2fs/ext2_ext_attr.h>
88 * Portability help for Microsoft Visual C++
91 #define EXT2_QSORT_TYPE int __cdecl
93 #define EXT2_QSORT_TYPE int
96 typedef struct struct_ext2_filsys *ext2_filsys;
98 #define EXT2FS_MARK_ERROR 0
99 #define EXT2FS_UNMARK_ERROR 1
100 #define EXT2FS_TEST_ERROR 2
102 typedef struct ext2fs_struct_generic_bitmap *ext2fs_generic_bitmap;
103 typedef struct ext2fs_struct_generic_bitmap *ext2fs_inode_bitmap;
104 typedef struct ext2fs_struct_generic_bitmap *ext2fs_block_bitmap;
106 #define EXT2_FIRST_INODE(s) EXT2_FIRST_INO(s)
110 * Badblocks list definitions
113 typedef struct ext2_struct_u32_list *ext2_badblocks_list;
114 typedef struct ext2_struct_u32_iterate *ext2_badblocks_iterate;
116 typedef struct ext2_struct_u32_list *ext2_u32_list;
117 typedef struct ext2_struct_u32_iterate *ext2_u32_iterate;
120 typedef struct ext2_struct_u32_list *badblocks_list;
121 typedef struct ext2_struct_u32_iterate *badblocks_iterate;
123 #define BADBLOCKS_FLAG_DIRTY 1
126 * ext2_dblist structure and abstractions (see dblist.c)
128 struct ext2_db_entry {
134 typedef struct ext2_struct_dblist *ext2_dblist;
136 #define DBLIST_ABORT 1
139 * ext2_fileio definitions
142 #define EXT2_FILE_WRITE 0x0001
143 #define EXT2_FILE_CREATE 0x0002
145 #define EXT2_FILE_MASK 0x00FF
147 #define EXT2_FILE_BUF_DIRTY 0x4000
148 #define EXT2_FILE_BUF_VALID 0x2000
150 typedef struct ext2_file *ext2_file_t;
152 #define EXT2_SEEK_SET 0
153 #define EXT2_SEEK_CUR 1
154 #define EXT2_SEEK_END 2
157 * Flags for the ext2_filsys structure and for ext2fs_open()
159 #define EXT2_FLAG_RW 0x01
160 #define EXT2_FLAG_CHANGED 0x02
161 #define EXT2_FLAG_DIRTY 0x04
162 #define EXT2_FLAG_VALID 0x08
163 #define EXT2_FLAG_IB_DIRTY 0x10
164 #define EXT2_FLAG_BB_DIRTY 0x20
165 #define EXT2_FLAG_SWAP_BYTES 0x40
166 #define EXT2_FLAG_SWAP_BYTES_READ 0x80
167 #define EXT2_FLAG_SWAP_BYTES_WRITE 0x100
168 #define EXT2_FLAG_MASTER_SB_ONLY 0x200
169 #define EXT2_FLAG_FORCE 0x400
170 #define EXT2_FLAG_SUPER_ONLY 0x800
171 #define EXT2_FLAG_JOURNAL_DEV_OK 0x1000
172 #define EXT2_FLAG_IMAGE_FILE 0x2000
173 #define EXT2_FLAG_EXCLUSIVE 0x4000
174 #define EXT2_FLAG_SOFTSUPP_FEATURES 0x8000
175 #define EXT2_FLAG_NOFREE_ON_ERROR 0x10000
178 * Special flag in the ext2 inode i_flag field that means that this is
179 * a new inode. (So that ext2_write_inode() can clear extra fields.)
181 #define EXT2_NEW_INODE_FL 0x80000000
184 * Flags for mkjournal
186 * EXT2_MKJOURNAL_V1_SUPER Make a (deprecated) V1 journal superblock
188 #define EXT2_MKJOURNAL_V1_SUPER 0x0000001
190 struct struct_ext2_filsys {
195 struct ext2_super_block * super;
196 unsigned int blocksize;
198 dgrp_t group_desc_count;
199 unsigned long desc_blocks;
200 struct ext2_group_desc * group_desc;
201 int inode_blocks_per_group;
202 ext2fs_inode_bitmap inode_map;
203 ext2fs_block_bitmap block_map;
204 errcode_t (*get_blocks)(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
205 errcode_t (*check_directory)(ext2_filsys fs, ext2_ino_t ino);
206 errcode_t (*write_bitmaps)(ext2_filsys fs);
207 errcode_t (*read_inode)(ext2_filsys fs, ext2_ino_t ino,
208 struct ext2_inode *inode);
209 errcode_t (*write_inode)(ext2_filsys fs, ext2_ino_t ino,
210 struct ext2_inode *inode);
211 ext2_badblocks_list badblocks;
213 __u32 stride; /* for mke2fs */
214 struct ext2_super_block * orig_super;
215 struct ext2_image_hdr * image_header;
219 * Reserved for future expansion
224 * Reserved for the use of the calling application.
231 struct ext2_inode_cache *icache;
235 * More callback functions
237 errcode_t (*get_alloc_block)(ext2_filsys fs, blk64_t goal,
239 void (*block_alloc_stats)(ext2_filsys fs, blk64_t blk, int inuse);
242 #if EXT2_FLAT_INCLUDES
243 #include "e2_bitops.h"
245 #include <ext2fs/bitops.h>
249 * Return flags for the block iterator functions
251 #define BLOCK_CHANGED 1
252 #define BLOCK_ABORT 2
253 #define BLOCK_ERROR 4
256 * Block interate flags
258 * BLOCK_FLAG_APPEND, or BLOCK_FLAG_HOLE, indicates that the interator
259 * function should be called on blocks where the block number is zero.
260 * This is used by ext2fs_expand_dir() to be able to add a new block
261 * to an inode. It can also be used for programs that want to be able
262 * to deal with files that contain "holes".
264 * BLOCK_FLAG_DEPTH_TRAVERSE indicates that the iterator function for
265 * the indirect, doubly indirect, etc. blocks should be called after
266 * all of the blocks containined in the indirect blocks are processed.
267 * This is useful if you are going to be deallocating blocks from an
270 * BLOCK_FLAG_DATA_ONLY indicates that the iterator function should be
271 * called for data blocks only.
273 * BLOCK_FLAG_READ_ONLY is a promise by the caller that it will not
274 * modify returned block number.
276 * BLOCK_FLAG_NO_LARGE is for internal use only. It informs
277 * ext2fs_block_iterate2 that large files won't be accepted.
279 #define BLOCK_FLAG_APPEND 1
280 #define BLOCK_FLAG_HOLE 1
281 #define BLOCK_FLAG_DEPTH_TRAVERSE 2
282 #define BLOCK_FLAG_DATA_ONLY 4
283 #define BLOCK_FLAG_READ_ONLY 8
285 #define BLOCK_FLAG_NO_LARGE 0x1000
288 * Magic "block count" return values for the block iterator function.
290 #define BLOCK_COUNT_IND (-1)
291 #define BLOCK_COUNT_DIND (-2)
292 #define BLOCK_COUNT_TIND (-3)
293 #define BLOCK_COUNT_TRANSLATOR (-4)
297 * Flags for ext2fs_move_blocks
299 #define EXT2_BMOVE_GET_DBLIST 0x0001
300 #define EXT2_BMOVE_DEBUG 0x0002
304 * Generic (non-filesystem layout specific) extents structure
307 #define EXT2_EXTENT_FLAGS_LEAF 0x0001
308 #define EXT2_EXTENT_FLAGS_UNINIT 0x0002
309 #define EXT2_EXTENT_FLAGS_SECOND_VISIT 0x0004
311 struct ext2fs_extent {
312 blk64_t e_pblk; /* first physical block */
313 blk64_t e_lblk; /* first logical block extent covers */
314 __u32 e_len; /* number of blocks covered by extent */
315 __u32 e_flags; /* extent flags */
318 typedef struct ext2_extent_handle *ext2_extent_handle_t;
319 typedef struct ext2_extent_path *ext2_extent_path_t;
322 * Flags used by ext2fs_extent_get()
324 #define EXT2_EXTENT_CURRENT 0x0000
325 #define EXT2_EXTENT_MOVE_MASK 0x000F
326 #define EXT2_EXTENT_ROOT 0x0001
327 #define EXT2_EXTENT_LAST_LEAF 0x0002
328 #define EXT2_EXTENT_FIRST_SIB 0x0003
329 #define EXT2_EXTENT_LAST_SIB 0x0004
330 #define EXT2_EXTENT_NEXT_SIB 0x0005
331 #define EXT2_EXTENT_PREV_SIB 0x0006
332 #define EXT2_EXTENT_NEXT_LEAF 0x0007
333 #define EXT2_EXTENT_PREV_LEAF 0x0008
334 #define EXT2_EXTENT_NEXT 0x0009
335 #define EXT2_EXTENT_PREV 0x000A
336 #define EXT2_EXTENT_UP 0x000B
337 #define EXT2_EXTENT_DOWN 0x000C
338 #define EXT2_EXTENT_DOWN_AND_LAST 0x000D
341 * Flags used by ext2fs_extent_insert()
343 #define EXT2_EXTENT_INSERT_AFTER 0x0001 /* insert after handle loc'n */
344 #define EXT2_EXTENT_INSERT_NOSPLIT 0x0002 /* insert may not cause split */
347 * Flags used by ext2fs_extent_delete()
349 #define EXT2_EXTENT_DELETE_KEEP_EMPTY 0x001 /* keep node if last extnt gone */
352 * Flags used by ext2fs_extent_set_bmap()
354 #define EXT2_EXTENT_SET_BMAP_UNINIT 0x0001
357 * Data structure returned by ext2fs_extent_get_info()
359 struct ext2_extent_info {
369 __u32 max_uninit_len;
373 * Flags for directory block reading and writing functions
375 #define EXT2_DIRBLOCK_V2_STRUCT 0x0001
378 * Return flags for the directory iterator functions
380 #define DIRENT_CHANGED 1
381 #define DIRENT_ABORT 2
382 #define DIRENT_ERROR 3
385 * Directory iterator flags
388 #define DIRENT_FLAG_INCLUDE_EMPTY 1
389 #define DIRENT_FLAG_INCLUDE_REMOVED 2
391 #define DIRENT_DOT_FILE 1
392 #define DIRENT_DOT_DOT_FILE 2
393 #define DIRENT_OTHER_FILE 3
394 #define DIRENT_DELETED_FILE 4
397 * Inode scan definitions
399 typedef struct ext2_struct_inode_scan *ext2_inode_scan;
404 #define EXT2_SF_CHK_BADBLOCKS 0x0001
405 #define EXT2_SF_BAD_INODE_BLK 0x0002
406 #define EXT2_SF_BAD_EXTRA_BYTES 0x0004
407 #define EXT2_SF_SKIP_MISSING_ITABLE 0x0008
408 #define EXT2_SF_DO_LAZY 0x0010
411 * ext2fs_check_if_mounted flags
413 #define EXT2_MF_MOUNTED 1
414 #define EXT2_MF_ISROOT 2
415 #define EXT2_MF_READONLY 4
416 #define EXT2_MF_SWAP 8
417 #define EXT2_MF_BUSY 16
420 * Ext2/linux mode flags. We define them here so that we don't need
421 * to depend on the OS's sys/stat.h, since we may be compiling on a
424 #define LINUX_S_IFMT 00170000
425 #define LINUX_S_IFSOCK 0140000
426 #define LINUX_S_IFLNK 0120000
427 #define LINUX_S_IFREG 0100000
428 #define LINUX_S_IFBLK 0060000
429 #define LINUX_S_IFDIR 0040000
430 #define LINUX_S_IFCHR 0020000
431 #define LINUX_S_IFIFO 0010000
432 #define LINUX_S_ISUID 0004000
433 #define LINUX_S_ISGID 0002000
434 #define LINUX_S_ISVTX 0001000
436 #define LINUX_S_IRWXU 00700
437 #define LINUX_S_IRUSR 00400
438 #define LINUX_S_IWUSR 00200
439 #define LINUX_S_IXUSR 00100
441 #define LINUX_S_IRWXG 00070
442 #define LINUX_S_IRGRP 00040
443 #define LINUX_S_IWGRP 00020
444 #define LINUX_S_IXGRP 00010
446 #define LINUX_S_IRWXO 00007
447 #define LINUX_S_IROTH 00004
448 #define LINUX_S_IWOTH 00002
449 #define LINUX_S_IXOTH 00001
451 #define LINUX_S_ISLNK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFLNK)
452 #define LINUX_S_ISREG(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFREG)
453 #define LINUX_S_ISDIR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFDIR)
454 #define LINUX_S_ISCHR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFCHR)
455 #define LINUX_S_ISBLK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFBLK)
456 #define LINUX_S_ISFIFO(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFIFO)
457 #define LINUX_S_ISSOCK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFSOCK)
460 * ext2 size of an inode
462 #define EXT2_I_SIZE(i) ((i)->i_size | ((__u64) (i)->i_size_high << 32))
465 * ext2_icount_t abstraction
467 #define EXT2_ICOUNT_OPT_INCREMENT 0x01
469 typedef struct ext2_icount *ext2_icount_t;
472 * Flags for ext2fs_bmap
474 #define BMAP_ALLOC 0x0001
475 #define BMAP_SET 0x0002
478 * Returned flags from ext2fs_bmap
480 #define BMAP_RET_UNINIT 0x0001
483 * Flags for imager.c functions
485 #define IMAGER_FLAG_INODEMAP 1
486 #define IMAGER_FLAG_SPARSEWRITE 2
489 * For checking structure magic numbers...
492 #define EXT2_CHECK_MAGIC(struct, code) \
493 if ((struct)->magic != (code)) return (code)
497 * For ext2 compression support
499 #define EXT2FS_COMPRESSED_BLKADDR ((blk_t) -1)
500 #define HOLE_BLKADDR(_b) ((_b) == 0 || (_b) == EXT2FS_COMPRESSED_BLKADDR)
503 * Features supported by this version of the library
505 #define EXT2_LIB_FEATURE_COMPAT_SUPP (EXT2_FEATURE_COMPAT_DIR_PREALLOC|\
506 EXT2_FEATURE_COMPAT_IMAGIC_INODES|\
507 EXT3_FEATURE_COMPAT_HAS_JOURNAL|\
508 EXT2_FEATURE_COMPAT_RESIZE_INODE|\
509 EXT2_FEATURE_COMPAT_DIR_INDEX|\
510 EXT2_FEATURE_COMPAT_EXT_ATTR)
512 /* This #ifdef is temporary until compression is fully supported */
513 #ifdef ENABLE_COMPRESSION
514 #ifndef I_KNOW_THAT_COMPRESSION_IS_EXPERIMENTAL
515 /* If the below warning bugs you, then have
516 `CPPFLAGS=-DI_KNOW_THAT_COMPRESSION_IS_EXPERIMENTAL' in your
517 environment at configure time. */
518 #warning "Compression support is experimental"
520 #define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\
521 EXT2_FEATURE_INCOMPAT_COMPRESSION|\
522 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\
523 EXT2_FEATURE_INCOMPAT_META_BG|\
524 EXT3_FEATURE_INCOMPAT_RECOVER|\
525 EXT3_FEATURE_INCOMPAT_EXTENTS|\
526 EXT4_FEATURE_INCOMPAT_FLEX_BG)
528 #define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\
529 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\
530 EXT2_FEATURE_INCOMPAT_META_BG|\
531 EXT3_FEATURE_INCOMPAT_RECOVER|\
532 EXT3_FEATURE_INCOMPAT_EXTENTS|\
533 EXT4_FEATURE_INCOMPAT_FLEX_BG)
535 #define EXT2_LIB_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|\
536 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|\
537 EXT2_FEATURE_RO_COMPAT_LARGE_FILE|\
538 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|\
539 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|\
540 EXT4_FEATURE_RO_COMPAT_GDT_CSUM)
543 * These features are only allowed if EXT2_FLAG_SOFTSUPP_FEATURES is passed
546 #define EXT2_LIB_SOFTSUPP_INCOMPAT (0)
547 #define EXT2_LIB_SOFTSUPP_RO_COMPAT (0)
550 * function prototypes
554 extern errcode_t ext2fs_new_inode(ext2_filsys fs, ext2_ino_t dir, int mode,
555 ext2fs_inode_bitmap map, ext2_ino_t *ret);
556 extern errcode_t ext2fs_new_block(ext2_filsys fs, blk_t goal,
557 ext2fs_block_bitmap map, blk_t *ret);
558 extern errcode_t ext2fs_new_block2(ext2_filsys fs, blk64_t goal,
559 ext2fs_block_bitmap map, blk64_t *ret);
560 extern errcode_t ext2fs_get_free_blocks(ext2_filsys fs, blk_t start,
561 blk_t finish, int num,
562 ext2fs_block_bitmap map,
564 extern errcode_t ext2fs_get_free_blocks2(ext2_filsys fs, blk64_t start,
565 blk64_t finish, int num,
566 ext2fs_block_bitmap map,
568 extern errcode_t ext2fs_alloc_block(ext2_filsys fs, blk_t goal,
569 char *block_buf, blk_t *ret);
570 extern errcode_t ext2fs_alloc_block2(ext2_filsys fs, blk64_t goal,
571 char *block_buf, blk64_t *ret);
572 extern void ext2fs_set_alloc_block_callback(ext2_filsys fs,
573 errcode_t (*func)(ext2_filsys fs,
576 errcode_t (**old)(ext2_filsys fs,
581 extern int ext2fs_reserve_super_and_bgd(ext2_filsys fs,
583 ext2fs_block_bitmap bmap);
584 extern void ext2fs_set_block_alloc_stats_callback(ext2_filsys fs,
585 void (*func)(ext2_filsys fs,
588 void (**old)(ext2_filsys fs,
593 void ext2fs_inode_alloc_stats(ext2_filsys fs, ext2_ino_t ino, int inuse);
594 void ext2fs_inode_alloc_stats2(ext2_filsys fs, ext2_ino_t ino,
595 int inuse, int isdir);
596 void ext2fs_block_alloc_stats(ext2_filsys fs, blk_t blk, int inuse);
597 void ext2fs_block_alloc_stats2(ext2_filsys fs, blk64_t blk, int inuse);
600 extern errcode_t ext2fs_allocate_tables(ext2_filsys fs);
601 extern errcode_t ext2fs_allocate_group_table(ext2_filsys fs, dgrp_t group,
602 ext2fs_block_bitmap bmap);
605 extern errcode_t ext2fs_u32_list_create(ext2_u32_list *ret, int size);
606 extern errcode_t ext2fs_u32_list_add(ext2_u32_list bb, __u32 blk);
607 extern int ext2fs_u32_list_find(ext2_u32_list bb, __u32 blk);
608 extern int ext2fs_u32_list_test(ext2_u32_list bb, blk_t blk);
609 extern errcode_t ext2fs_u32_list_iterate_begin(ext2_u32_list bb,
610 ext2_u32_iterate *ret);
611 extern int ext2fs_u32_list_iterate(ext2_u32_iterate iter, blk_t *blk);
612 extern void ext2fs_u32_list_iterate_end(ext2_u32_iterate iter);
613 extern errcode_t ext2fs_u32_copy(ext2_u32_list src, ext2_u32_list *dest);
614 extern int ext2fs_u32_list_equal(ext2_u32_list bb1, ext2_u32_list bb2);
616 extern errcode_t ext2fs_badblocks_list_create(ext2_badblocks_list *ret,
618 extern errcode_t ext2fs_badblocks_list_add(ext2_badblocks_list bb,
620 extern int ext2fs_badblocks_list_test(ext2_badblocks_list bb,
622 extern int ext2fs_u32_list_del(ext2_u32_list bb, __u32 blk);
623 extern void ext2fs_badblocks_list_del(ext2_u32_list bb, __u32 blk);
625 ext2fs_badblocks_list_iterate_begin(ext2_badblocks_list bb,
626 ext2_badblocks_iterate *ret);
627 extern int ext2fs_badblocks_list_iterate(ext2_badblocks_iterate iter,
629 extern void ext2fs_badblocks_list_iterate_end(ext2_badblocks_iterate iter);
630 extern errcode_t ext2fs_badblocks_copy(ext2_badblocks_list src,
631 ext2_badblocks_list *dest);
632 extern int ext2fs_badblocks_equal(ext2_badblocks_list bb1,
633 ext2_badblocks_list bb2);
634 extern int ext2fs_u32_list_count(ext2_u32_list bb);
637 extern errcode_t badblocks_list_create(badblocks_list *ret, int size);
638 extern errcode_t badblocks_list_add(badblocks_list bb, blk_t blk);
639 extern int badblocks_list_test(badblocks_list bb, blk_t blk);
640 extern errcode_t badblocks_list_iterate_begin(badblocks_list bb,
641 badblocks_iterate *ret);
642 extern int badblocks_list_iterate(badblocks_iterate iter, blk_t *blk);
643 extern void badblocks_list_iterate_end(badblocks_iterate iter);
644 extern void badblocks_list_free(badblocks_list bb);
647 extern errcode_t ext2fs_update_bb_inode(ext2_filsys fs,
648 ext2_badblocks_list bb_list);
651 extern void ext2fs_free_block_bitmap(ext2fs_block_bitmap bitmap);
652 extern void ext2fs_free_inode_bitmap(ext2fs_inode_bitmap bitmap);
653 extern errcode_t ext2fs_copy_bitmap(ext2fs_generic_bitmap src,
654 ext2fs_generic_bitmap *dest);
655 extern errcode_t ext2fs_write_inode_bitmap(ext2_filsys fs);
656 extern errcode_t ext2fs_write_block_bitmap (ext2_filsys fs);
657 extern errcode_t ext2fs_read_inode_bitmap (ext2_filsys fs);
658 extern errcode_t ext2fs_read_block_bitmap(ext2_filsys fs);
659 extern errcode_t ext2fs_allocate_block_bitmap(ext2_filsys fs,
661 ext2fs_block_bitmap *ret);
662 extern errcode_t ext2fs_allocate_inode_bitmap(ext2_filsys fs,
664 ext2fs_inode_bitmap *ret);
665 extern errcode_t ext2fs_fudge_inode_bitmap_end(ext2fs_inode_bitmap bitmap,
666 ext2_ino_t end, ext2_ino_t *oend);
667 extern errcode_t ext2fs_fudge_block_bitmap_end(ext2fs_block_bitmap bitmap,
668 blk_t end, blk_t *oend);
669 extern void ext2fs_clear_inode_bitmap(ext2fs_inode_bitmap bitmap);
670 extern void ext2fs_clear_block_bitmap(ext2fs_block_bitmap bitmap);
671 extern errcode_t ext2fs_read_bitmaps(ext2_filsys fs);
672 extern errcode_t ext2fs_write_bitmaps(ext2_filsys fs);
673 extern errcode_t ext2fs_resize_inode_bitmap(__u32 new_end, __u32 new_real_end,
674 ext2fs_inode_bitmap bmap);
675 extern errcode_t ext2fs_resize_block_bitmap(__u32 new_end, __u32 new_real_end,
676 ext2fs_block_bitmap bmap);
677 extern errcode_t ext2fs_compare_block_bitmap(ext2fs_block_bitmap bm1,
678 ext2fs_block_bitmap bm2);
679 extern errcode_t ext2fs_compare_inode_bitmap(ext2fs_inode_bitmap bm1,
680 ext2fs_inode_bitmap bm2);
681 extern errcode_t ext2fs_set_inode_bitmap_range(ext2fs_inode_bitmap bmap,
682 ext2_ino_t start, unsigned int num,
684 extern errcode_t ext2fs_get_inode_bitmap_range(ext2fs_inode_bitmap bmap,
685 ext2_ino_t start, unsigned int num,
687 extern errcode_t ext2fs_set_block_bitmap_range(ext2fs_block_bitmap bmap,
688 blk_t start, unsigned int num,
690 extern errcode_t ext2fs_get_block_bitmap_range(ext2fs_block_bitmap bmap,
691 blk_t start, unsigned int num,
695 extern dgrp_t ext2fs_group_of_blk2(ext2_filsys fs, blk64_t);
696 extern blk64_t ext2fs_group_first_block2(ext2_filsys fs, dgrp_t group);
697 extern blk64_t ext2fs_group_last_block2(ext2_filsys fs, dgrp_t group);
698 extern blk64_t ext2fs_inode_data_blocks2(ext2_filsys fs,
699 struct ext2_inode *inode);
700 extern blk64_t ext2fs_inode_i_blocks(ext2_filsys fs,
701 struct ext2_inode *inode);
702 extern blk64_t ext2fs_blocks_count(struct ext2_super_block *super);
703 extern void ext2fs_blocks_count_set(struct ext2_super_block *super,
705 extern void ext2fs_blocks_count_add(struct ext2_super_block *super,
707 extern blk64_t ext2fs_r_blocks_count(struct ext2_super_block *super);
708 extern void ext2fs_r_blocks_count_set(struct ext2_super_block *super,
710 extern void ext2fs_r_blocks_count_add(struct ext2_super_block *super,
712 extern blk64_t ext2fs_free_blocks_count(struct ext2_super_block *super);
713 extern void ext2fs_free_blocks_count_set(struct ext2_super_block *super,
715 extern void ext2fs_free_blocks_count_add(struct ext2_super_block *super,
717 /* Block group descriptor accessor functions */
718 extern struct ext2_group_desc *ext2fs_group_desc(ext2_filsys fs,
719 struct ext2_group_desc *gdp,
721 extern blk64_t ext2fs_block_bitmap_loc(ext2_filsys fs, dgrp_t group);
722 extern void ext2fs_block_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
724 extern blk64_t ext2fs_inode_bitmap_loc(ext2_filsys fs, dgrp_t group);
725 extern void ext2fs_inode_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
727 extern blk64_t ext2fs_inode_table_loc(ext2_filsys fs, dgrp_t group);
728 extern void ext2fs_inode_table_loc_set(ext2_filsys fs, dgrp_t group,
730 extern blk64_t ext2fs_bg_free_blocks_count(ext2_filsys fs, dgrp_t group);
731 extern void ext2fs_bg_free_blocks_count_set(ext2_filsys fs, dgrp_t group,
733 extern blk64_t ext2fs_bg_free_inodes_count(ext2_filsys fs, dgrp_t group);
734 extern void ext2fs_bg_free_inodes_count_set(ext2_filsys fs, dgrp_t group,
736 extern blk64_t ext2fs_bg_used_dirs_count(ext2_filsys fs, dgrp_t group);
737 extern void ext2fs_bg_used_dirs_count_set(ext2_filsys fs, dgrp_t group,
739 extern blk64_t ext2fs_bg_itable_unused(ext2_filsys fs, dgrp_t group);
740 extern void ext2fs_bg_itable_unused_set(ext2_filsys fs, dgrp_t group,
742 extern __u16 ext2fs_bg_flags(ext2_filsys fs, dgrp_t group);
743 extern void ext2fs_bg_flags_set(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
744 extern void ext2fs_bg_flags_clear(ext2_filsys fs, dgrp_t group,
746 extern int ext2fs_bg_flag_test(ext2_filsys fs, dgrp_t group, __u16 bg_flag);
747 extern void ext2fs_bg_flag_set(ext2_filsys fs, dgrp_t group, __u16 bg_flag);
748 extern void ext2fs_bg_flag_clear(ext2_filsys fs, dgrp_t group, __u16 bg_flag);
749 extern __u16 ext2fs_bg_checksum(ext2_filsys fs, dgrp_t group);
750 extern void ext2fs_bg_checksum_set(ext2_filsys fs, dgrp_t group, __u16 checksum);
751 extern blk64_t ext2fs_file_acl_block(const struct ext2_inode *inode);
752 extern void ext2fs_file_acl_block_set(struct ext2_inode *inode, blk64_t blk);
755 extern errcode_t ext2fs_block_iterate(ext2_filsys fs,
759 int (*func)(ext2_filsys fs,
764 errcode_t ext2fs_block_iterate2(ext2_filsys fs,
768 int (*func)(ext2_filsys fs,
770 e2_blkcnt_t blockcnt,
775 errcode_t ext2fs_block_iterate3(ext2_filsys fs,
779 int (*func)(ext2_filsys fs,
781 e2_blkcnt_t blockcnt,
788 extern errcode_t ext2fs_bmap(ext2_filsys fs, ext2_ino_t ino,
789 struct ext2_inode *inode,
790 char *block_buf, int bmap_flags,
791 blk_t block, blk_t *phys_blk);
792 extern errcode_t ext2fs_bmap2(ext2_filsys fs, ext2_ino_t ino,
793 struct ext2_inode *inode,
794 char *block_buf, int bmap_flags, blk64_t block,
795 int *ret_flags, blk64_t *phys_blk);
799 extern errcode_t ext2fs_move_blocks(ext2_filsys fs,
800 ext2fs_block_bitmap reserve,
801 ext2fs_block_bitmap alloc_map,
806 extern errcode_t ext2fs_check_desc(ext2_filsys fs);
809 extern errcode_t ext2fs_close(ext2_filsys fs);
810 extern errcode_t ext2fs_flush(ext2_filsys fs);
811 extern int ext2fs_bg_has_super(ext2_filsys fs, int group_block);
812 extern errcode_t ext2fs_super_and_bgd_loc2(ext2_filsys fs,
814 blk64_t *ret_super_blk,
815 blk64_t *ret_old_desc_blk,
816 blk64_t *ret_new_desc_blk,
817 blk_t *ret_used_blks);
818 extern int ext2fs_super_and_bgd_loc(ext2_filsys fs,
820 blk_t *ret_super_blk,
821 blk_t *ret_old_desc_blk,
822 blk_t *ret_new_desc_blk,
824 extern void ext2fs_update_dynamic_rev(ext2_filsys fs);
827 extern void ext2fs_group_desc_csum_set(ext2_filsys fs, dgrp_t group);
828 extern int ext2fs_group_desc_csum_verify(ext2_filsys fs, dgrp_t group);
829 extern errcode_t ext2fs_set_gdt_csum(ext2_filsys fs);
833 extern errcode_t ext2fs_get_num_dirs(ext2_filsys fs, ext2_ino_t *ret_num_dirs);
834 extern errcode_t ext2fs_init_dblist(ext2_filsys fs, ext2_dblist *ret_dblist);
835 extern errcode_t ext2fs_add_dir_block(ext2_dblist dblist, ext2_ino_t ino,
836 blk_t blk, int blockcnt);
837 extern void ext2fs_dblist_sort(ext2_dblist dblist,
838 EXT2_QSORT_TYPE (*sortfunc)(const void *,
840 extern errcode_t ext2fs_dblist_iterate(ext2_dblist dblist,
841 int (*func)(ext2_filsys fs, struct ext2_db_entry *db_info,
844 extern errcode_t ext2fs_set_dir_block(ext2_dblist dblist, ext2_ino_t ino,
845 blk_t blk, int blockcnt);
846 extern errcode_t ext2fs_copy_dblist(ext2_dblist src,
848 extern int ext2fs_dblist_count(ext2_dblist dblist);
849 extern errcode_t ext2fs_dblist_get_last(ext2_dblist dblist,
850 struct ext2_db_entry **entry);
851 extern errcode_t ext2fs_dblist_drop_last(ext2_dblist dblist);
855 ext2fs_dblist_dir_iterate(ext2_dblist dblist,
858 int (*func)(ext2_ino_t dir,
860 struct ext2_dir_entry *dirent,
868 extern errcode_t ext2fs_read_dir_block(ext2_filsys fs, blk_t block,
870 extern errcode_t ext2fs_read_dir_block2(ext2_filsys fs, blk_t block,
871 void *buf, int flags);
872 extern errcode_t ext2fs_read_dir_block3(ext2_filsys fs, blk64_t block,
873 void *buf, int flags);
874 extern errcode_t ext2fs_write_dir_block(ext2_filsys fs, blk_t block,
876 extern errcode_t ext2fs_write_dir_block2(ext2_filsys fs, blk_t block,
877 void *buf, int flags);
878 extern errcode_t ext2fs_write_dir_block3(ext2_filsys fs, blk64_t block,
879 void *buf, int flags);
882 extern errcode_t ext2fs_dirhash(int version, const char *name, int len,
884 ext2_dirhash_t *ret_hash,
885 ext2_dirhash_t *ret_minor_hash);
889 extern errcode_t ext2fs_get_rec_len(ext2_filsys fs,
890 struct ext2_dir_entry *dirent,
891 unsigned int *rec_len);
892 extern errcode_t ext2fs_set_rec_len(ext2_filsys fs,
894 struct ext2_dir_entry *dirent);
895 extern errcode_t ext2fs_dir_iterate(ext2_filsys fs,
899 int (*func)(struct ext2_dir_entry *dirent,
905 extern errcode_t ext2fs_dir_iterate2(ext2_filsys fs,
909 int (*func)(ext2_ino_t dir,
911 struct ext2_dir_entry *dirent,
919 extern errcode_t ext2fs_dup_handle(ext2_filsys src, ext2_filsys *dest);
922 extern errcode_t ext2fs_expand_dir(ext2_filsys fs, ext2_ino_t dir);
925 extern __u32 ext2fs_ext_attr_hash_entry(struct ext2_ext_attr_entry *entry,
927 extern errcode_t ext2fs_read_ext_attr(ext2_filsys fs, blk_t block, void *buf);
928 extern errcode_t ext2fs_read_ext_attr2(ext2_filsys fs, blk64_t block,
930 extern errcode_t ext2fs_write_ext_attr(ext2_filsys fs, blk_t block,
932 extern errcode_t ext2fs_write_ext_attr2(ext2_filsys fs, blk64_t block,
934 extern errcode_t ext2fs_adjust_ea_refcount(ext2_filsys fs, blk_t blk,
936 int adjust, __u32 *newcount);
937 extern errcode_t ext2fs_adjust_ea_refcount2(ext2_filsys fs, blk64_t blk,
939 int adjust, __u32 *newcount);
942 extern errcode_t ext2fs_extent_header_verify(void *ptr, int size);
943 extern errcode_t ext2fs_extent_open(ext2_filsys fs, ext2_ino_t ino,
944 ext2_extent_handle_t *handle);
945 extern errcode_t ext2fs_extent_open2(ext2_filsys fs, ext2_ino_t ino,
946 struct ext2_inode *inode,
947 ext2_extent_handle_t *ret_handle);
948 extern void ext2fs_extent_free(ext2_extent_handle_t handle);
949 extern errcode_t ext2fs_extent_get(ext2_extent_handle_t handle,
950 int flags, struct ext2fs_extent *extent);
951 extern errcode_t ext2fs_extent_replace(ext2_extent_handle_t handle, int flags,
952 struct ext2fs_extent *extent);
953 extern errcode_t ext2fs_extent_insert(ext2_extent_handle_t handle, int flags,
954 struct ext2fs_extent *extent);
955 extern errcode_t ext2fs_extent_set_bmap(ext2_extent_handle_t handle,
956 blk64_t logical, blk64_t physical,
958 extern errcode_t ext2fs_extent_delete(ext2_extent_handle_t handle, int flags);
959 extern errcode_t ext2fs_extent_get_info(ext2_extent_handle_t handle,
960 struct ext2_extent_info *info);
961 extern errcode_t ext2fs_extent_goto(ext2_extent_handle_t handle,
965 extern errcode_t ext2fs_file_open2(ext2_filsys fs, ext2_ino_t ino,
966 struct ext2_inode *inode,
967 int flags, ext2_file_t *ret);
968 extern errcode_t ext2fs_file_open(ext2_filsys fs, ext2_ino_t ino,
969 int flags, ext2_file_t *ret);
970 extern ext2_filsys ext2fs_file_get_fs(ext2_file_t file);
971 extern errcode_t ext2fs_file_close(ext2_file_t file);
972 extern errcode_t ext2fs_file_flush(ext2_file_t file);
973 extern errcode_t ext2fs_file_read(ext2_file_t file, void *buf,
974 unsigned int wanted, unsigned int *got);
975 extern errcode_t ext2fs_file_write(ext2_file_t file, const void *buf,
976 unsigned int nbytes, unsigned int *written);
977 extern errcode_t ext2fs_file_llseek(ext2_file_t file, __u64 offset,
978 int whence, __u64 *ret_pos);
979 extern errcode_t ext2fs_file_lseek(ext2_file_t file, ext2_off_t offset,
980 int whence, ext2_off_t *ret_pos);
981 errcode_t ext2fs_file_get_lsize(ext2_file_t file, __u64 *ret_size);
982 extern ext2_off_t ext2fs_file_get_size(ext2_file_t file);
983 extern errcode_t ext2fs_file_set_size(ext2_file_t file, ext2_off_t size);
986 extern char *ext2fs_find_block_device(dev_t device);
989 extern errcode_t ext2fs_sync_device(int fd, int flushb);
992 extern void ext2fs_free(ext2_filsys fs);
993 extern void ext2fs_free_dblist(ext2_dblist dblist);
994 extern void ext2fs_badblocks_list_free(ext2_badblocks_list bb);
995 extern void ext2fs_u32_list_free(ext2_u32_list bb);
998 extern void ext2fs_free_generic_bitmap(ext2fs_inode_bitmap bitmap);
999 extern errcode_t ext2fs_make_generic_bitmap(errcode_t magic, ext2_filsys fs,
1000 __u32 start, __u32 end,
1002 const char *descr, char *init_map,
1003 ext2fs_generic_bitmap *ret);
1004 extern errcode_t ext2fs_allocate_generic_bitmap(__u32 start,
1008 ext2fs_generic_bitmap *ret);
1009 extern errcode_t ext2fs_copy_generic_bitmap(ext2fs_generic_bitmap src,
1010 ext2fs_generic_bitmap *dest);
1011 extern void ext2fs_clear_generic_bitmap(ext2fs_generic_bitmap bitmap);
1012 extern errcode_t ext2fs_fudge_generic_bitmap_end(ext2fs_inode_bitmap bitmap,
1017 extern void ext2fs_set_generic_bitmap_padding(ext2fs_generic_bitmap map);
1018 extern errcode_t ext2fs_resize_generic_bitmap(errcode_t magic,
1021 ext2fs_generic_bitmap bmap);
1022 extern errcode_t ext2fs_compare_generic_bitmap(errcode_t magic, errcode_t neq,
1023 ext2fs_generic_bitmap bm1,
1024 ext2fs_generic_bitmap bm2);
1025 extern errcode_t ext2fs_get_generic_bitmap_range(ext2fs_generic_bitmap bmap,
1027 __u32 start, __u32 num,
1029 extern errcode_t ext2fs_set_generic_bitmap_range(ext2fs_generic_bitmap bmap,
1031 __u32 start, __u32 num,
1035 extern errcode_t ext2fs_get_device_size(const char *file, int blocksize,
1037 extern errcode_t ext2fs_get_device_size2(const char *file, int blocksize,
1038 blk64_t *retblocks);
1041 errcode_t ext2fs_get_device_sectsize(const char *file, int *sectsize);
1044 errcode_t ext2fs_iblk_add_blocks(ext2_filsys fs, struct ext2_inode *inode,
1045 blk64_t num_blocks);
1046 errcode_t ext2fs_iblk_sub_blocks(ext2_filsys fs, struct ext2_inode *inode,
1047 blk64_t num_blocks);
1048 errcode_t ext2fs_iblk_set(ext2_filsys fs, struct ext2_inode *inode, blk64_t b);
1051 extern errcode_t ext2fs_image_inode_write(ext2_filsys fs, int fd, int flags);
1052 extern errcode_t ext2fs_image_inode_read(ext2_filsys fs, int fd, int flags);
1053 extern errcode_t ext2fs_image_super_write(ext2_filsys fs, int fd, int flags);
1054 extern errcode_t ext2fs_image_super_read(ext2_filsys fs, int fd, int flags);
1055 extern errcode_t ext2fs_image_bitmap_write(ext2_filsys fs, int fd, int flags);
1056 extern errcode_t ext2fs_image_bitmap_read(ext2_filsys fs, int fd, int flags);
1059 errcode_t ext2fs_read_ind_block(ext2_filsys fs, blk_t blk, void *buf);
1060 errcode_t ext2fs_write_ind_block(ext2_filsys fs, blk_t blk, void *buf);
1063 extern errcode_t ext2fs_initialize(const char *name, int flags,
1064 struct ext2_super_block *param,
1065 io_manager manager, ext2_filsys *ret_fs);
1068 extern void ext2fs_free_icount(ext2_icount_t icount);
1069 extern errcode_t ext2fs_create_icount_tdb(ext2_filsys fs, char *tdb_dir,
1070 int flags, ext2_icount_t *ret);
1071 extern errcode_t ext2fs_create_icount2(ext2_filsys fs, int flags,
1073 ext2_icount_t hint, ext2_icount_t *ret);
1074 extern errcode_t ext2fs_create_icount(ext2_filsys fs, int flags,
1076 ext2_icount_t *ret);
1077 extern errcode_t ext2fs_icount_fetch(ext2_icount_t icount, ext2_ino_t ino,
1079 extern errcode_t ext2fs_icount_increment(ext2_icount_t icount, ext2_ino_t ino,
1081 extern errcode_t ext2fs_icount_decrement(ext2_icount_t icount, ext2_ino_t ino,
1083 extern errcode_t ext2fs_icount_store(ext2_icount_t icount, ext2_ino_t ino,
1085 extern ext2_ino_t ext2fs_get_icount_size(ext2_icount_t icount);
1086 errcode_t ext2fs_icount_validate(ext2_icount_t icount, FILE *);
1089 extern errcode_t ext2fs_flush_icache(ext2_filsys fs);
1090 extern errcode_t ext2fs_get_next_inode_full(ext2_inode_scan scan,
1092 struct ext2_inode *inode,
1094 extern errcode_t ext2fs_open_inode_scan(ext2_filsys fs, int buffer_blocks,
1095 ext2_inode_scan *ret_scan);
1096 extern void ext2fs_close_inode_scan(ext2_inode_scan scan);
1097 extern errcode_t ext2fs_get_next_inode(ext2_inode_scan scan, ext2_ino_t *ino,
1098 struct ext2_inode *inode);
1099 extern errcode_t ext2fs_inode_scan_goto_blockgroup(ext2_inode_scan scan,
1101 extern void ext2fs_set_inode_callback
1102 (ext2_inode_scan scan,
1103 errcode_t (*done_group)(ext2_filsys fs,
1104 ext2_inode_scan scan,
1107 void *done_group_data);
1108 extern int ext2fs_inode_scan_flags(ext2_inode_scan scan, int set_flags,
1110 extern errcode_t ext2fs_read_inode_full(ext2_filsys fs, ext2_ino_t ino,
1111 struct ext2_inode * inode,
1113 extern errcode_t ext2fs_read_inode (ext2_filsys fs, ext2_ino_t ino,
1114 struct ext2_inode * inode);
1115 extern errcode_t ext2fs_write_inode_full(ext2_filsys fs, ext2_ino_t ino,
1116 struct ext2_inode * inode,
1118 extern errcode_t ext2fs_write_inode(ext2_filsys fs, ext2_ino_t ino,
1119 struct ext2_inode * inode);
1120 extern errcode_t ext2fs_write_new_inode(ext2_filsys fs, ext2_ino_t ino,
1121 struct ext2_inode * inode);
1122 extern errcode_t ext2fs_get_blocks(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
1123 extern errcode_t ext2fs_check_directory(ext2_filsys fs, ext2_ino_t ino);
1126 extern io_manager inode_io_manager;
1127 extern errcode_t ext2fs_inode_io_intern(ext2_filsys fs, ext2_ino_t ino,
1129 extern errcode_t ext2fs_inode_io_intern2(ext2_filsys fs, ext2_ino_t ino,
1130 struct ext2_inode *inode,
1134 extern errcode_t ext2fs_check_if_mounted(const char *file, int *mount_flags);
1135 extern errcode_t ext2fs_check_mount_point(const char *device, int *mount_flags,
1136 char *mtpt, int mtlen);
1139 extern errcode_t ext2fs_lookup(ext2_filsys fs, ext2_ino_t dir, const char *name,
1140 int namelen, char *buf, ext2_ino_t *inode);
1141 extern errcode_t ext2fs_namei(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1142 const char *name, ext2_ino_t *inode);
1143 errcode_t ext2fs_namei_follow(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1144 const char *name, ext2_ino_t *inode);
1145 extern errcode_t ext2fs_follow_link(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1146 ext2_ino_t inode, ext2_ino_t *res_inode);
1149 int ext2fs_native_flag(void);
1152 extern errcode_t ext2fs_new_dir_block(ext2_filsys fs, ext2_ino_t dir_ino,
1153 ext2_ino_t parent_ino, char **block);
1156 extern errcode_t ext2fs_mkdir(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t inum,
1160 extern errcode_t ext2fs_zero_blocks(ext2_filsys fs, blk_t blk, int num,
1161 blk_t *ret_blk, int *ret_count);
1162 extern errcode_t ext2fs_zero_blocks2(ext2_filsys fs, blk64_t blk, int num,
1163 blk64_t *ret_blk, int *ret_count);
1164 extern errcode_t ext2fs_create_journal_superblock(ext2_filsys fs,
1165 __u32 size, int flags,
1167 extern errcode_t ext2fs_add_journal_device(ext2_filsys fs,
1168 ext2_filsys journal_dev);
1169 extern errcode_t ext2fs_add_journal_inode(ext2_filsys fs, blk_t size,
1171 extern int ext2fs_default_journal_size(__u64 blocks);
1174 extern errcode_t ext2fs_open(const char *name, int flags, int superblock,
1175 unsigned int block_size, io_manager manager,
1176 ext2_filsys *ret_fs);
1177 extern errcode_t ext2fs_open2(const char *name, const char *io_options,
1178 int flags, int superblock,
1179 unsigned int block_size, io_manager manager,
1180 ext2_filsys *ret_fs);
1181 extern blk64_t ext2fs_descriptor_block_loc2(ext2_filsys fs,
1182 blk64_t group_block, dgrp_t i);
1183 extern blk_t ext2fs_descriptor_block_loc(ext2_filsys fs, blk_t group_block,
1185 errcode_t ext2fs_get_data_io(ext2_filsys fs, io_channel *old_io);
1186 errcode_t ext2fs_set_data_io(ext2_filsys fs, io_channel new_io);
1187 errcode_t ext2fs_rewrite_to_io(ext2_filsys fs, io_channel new_io);
1189 /* get_pathname.c */
1190 extern errcode_t ext2fs_get_pathname(ext2_filsys fs, ext2_ino_t dir, ext2_ino_t ino,
1194 errcode_t ext2fs_link(ext2_filsys fs, ext2_ino_t dir, const char *name,
1195 ext2_ino_t ino, int flags);
1196 errcode_t ext2fs_unlink(ext2_filsys fs, ext2_ino_t dir, const char *name,
1197 ext2_ino_t ino, int flags);
1200 extern errcode_t ext2fs_read_bb_inode(ext2_filsys fs,
1201 ext2_badblocks_list *bb_list);
1203 /* read_bb_file.c */
1204 extern errcode_t ext2fs_read_bb_FILE2(ext2_filsys fs, FILE *f,
1205 ext2_badblocks_list *bb_list,
1207 void (*invalid)(ext2_filsys fs,
1211 extern errcode_t ext2fs_read_bb_FILE(ext2_filsys fs, FILE *f,
1212 ext2_badblocks_list *bb_list,
1213 void (*invalid)(ext2_filsys fs,
1217 extern errcode_t ext2fs_create_resize_inode(ext2_filsys fs);
1220 extern void ext2fs_swap_ext_attr(char *to, char *from, int bufsize,
1222 extern void ext2fs_swap_ext_attr_header(struct ext2_ext_attr_header *to_header,
1223 struct ext2_ext_attr_header *from_hdr);
1224 extern void ext2fs_swap_ext_attr_entry(struct ext2_ext_attr_entry *to_entry,
1225 struct ext2_ext_attr_entry *from_entry);
1226 extern void ext2fs_swap_super(struct ext2_super_block * super);
1227 extern void ext2fs_swap_group_desc(struct ext2_group_desc *gdp);
1228 extern void ext2fs_swap_inode_full(ext2_filsys fs, struct ext2_inode_large *t,
1229 struct ext2_inode_large *f, int hostorder,
1231 extern void ext2fs_swap_inode(ext2_filsys fs,struct ext2_inode *t,
1232 struct ext2_inode *f, int hostorder);
1235 extern int ext2fs_inode_has_valid_blocks(struct ext2_inode *inode);
1238 extern int ext2fs_parse_version_string(const char *ver_string);
1239 extern int ext2fs_get_library_version(const char **ver_string,
1240 const char **date_string);
1242 /* write_bb_file.c */
1243 extern errcode_t ext2fs_write_bb_FILE(ext2_badblocks_list bb_list,
1248 /* inline functions */
1249 extern errcode_t ext2fs_get_mem(unsigned long size, void *ptr);
1250 extern errcode_t ext2fs_get_array(unsigned long count, unsigned long size, void *ptr);
1251 extern errcode_t ext2fs_free_mem(void *ptr);
1252 extern errcode_t ext2fs_resize_mem(unsigned long old_size,
1253 unsigned long size, void *ptr);
1254 extern void ext2fs_mark_super_dirty(ext2_filsys fs);
1255 extern void ext2fs_mark_changed(ext2_filsys fs);
1256 extern int ext2fs_test_changed(ext2_filsys fs);
1257 extern void ext2fs_mark_valid(ext2_filsys fs);
1258 extern void ext2fs_unmark_valid(ext2_filsys fs);
1259 extern int ext2fs_test_valid(ext2_filsys fs);
1260 extern void ext2fs_mark_ib_dirty(ext2_filsys fs);
1261 extern void ext2fs_mark_bb_dirty(ext2_filsys fs);
1262 extern int ext2fs_test_ib_dirty(ext2_filsys fs);
1263 extern int ext2fs_test_bb_dirty(ext2_filsys fs);
1264 extern int ext2fs_group_of_blk(ext2_filsys fs, blk_t blk);
1265 extern int ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino);
1266 extern blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group);
1267 extern blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group);
1268 extern blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
1269 struct ext2_inode *inode);
1270 extern unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b);
1271 extern __u64 ext2fs_div64_ceil(__u64 a, __u64 b);
1274 * The actual inlined functions definitions themselves...
1276 * If NO_INLINE_FUNCS is defined, then we won't try to do inline
1279 #if (defined(INCLUDE_INLINE_FUNCS) || !defined(NO_INLINE_FUNCS))
1280 #ifdef INCLUDE_INLINE_FUNCS
1281 #define _INLINE_ extern
1284 #define _INLINE_ extern __inline__
1285 #else /* For Watcom C */
1286 #define _INLINE_ extern inline
1290 #ifndef EXT2_CUSTOM_MEMORY_ROUTINES
1295 _INLINE_ errcode_t ext2fs_get_mem(unsigned long size, void *ptr)
1301 return EXT2_ET_NO_MEMORY;
1302 memcpy(ptr, &pp, sizeof (pp));
1306 _INLINE_ errcode_t ext2fs_get_array(unsigned long count, unsigned long size, void *ptr)
1308 if (count && (-1UL)/count<size)
1309 return EXT2_ET_NO_MEMORY; //maybe define EXT2_ET_OVERFLOW ?
1310 return ext2fs_get_mem(count*size, ptr);
1316 _INLINE_ errcode_t ext2fs_free_mem(void *ptr)
1320 memcpy(&p, ptr, sizeof(p));
1323 memcpy(ptr, &p, sizeof(p));
1330 _INLINE_ errcode_t ext2fs_resize_mem(unsigned long EXT2FS_ATTR((unused)) old_size,
1331 unsigned long size, void *ptr)
1335 /* Use "memcpy" for pointer assignments here to avoid problems
1336 * with C99 strict type aliasing rules. */
1337 memcpy(&p, ptr, sizeof(p));
1338 p = realloc(p, size);
1340 return EXT2_ET_NO_MEMORY;
1341 memcpy(ptr, &p, sizeof(p));
1344 #endif /* Custom memory routines */
1347 * Mark a filesystem superblock as dirty
1349 _INLINE_ void ext2fs_mark_super_dirty(ext2_filsys fs)
1351 fs->flags |= EXT2_FLAG_DIRTY | EXT2_FLAG_CHANGED;
1355 * Mark a filesystem as changed
1357 _INLINE_ void ext2fs_mark_changed(ext2_filsys fs)
1359 fs->flags |= EXT2_FLAG_CHANGED;
1363 * Check to see if a filesystem has changed
1365 _INLINE_ int ext2fs_test_changed(ext2_filsys fs)
1367 return (fs->flags & EXT2_FLAG_CHANGED);
1371 * Mark a filesystem as valid
1373 _INLINE_ void ext2fs_mark_valid(ext2_filsys fs)
1375 fs->flags |= EXT2_FLAG_VALID;
1379 * Mark a filesystem as NOT valid
1381 _INLINE_ void ext2fs_unmark_valid(ext2_filsys fs)
1383 fs->flags &= ~EXT2_FLAG_VALID;
1387 * Check to see if a filesystem is valid
1389 _INLINE_ int ext2fs_test_valid(ext2_filsys fs)
1391 return (fs->flags & EXT2_FLAG_VALID);
1395 * Mark the inode bitmap as dirty
1397 _INLINE_ void ext2fs_mark_ib_dirty(ext2_filsys fs)
1399 fs->flags |= EXT2_FLAG_IB_DIRTY | EXT2_FLAG_CHANGED;
1403 * Mark the block bitmap as dirty
1405 _INLINE_ void ext2fs_mark_bb_dirty(ext2_filsys fs)
1407 fs->flags |= EXT2_FLAG_BB_DIRTY | EXT2_FLAG_CHANGED;
1411 * Check to see if a filesystem's inode bitmap is dirty
1413 _INLINE_ int ext2fs_test_ib_dirty(ext2_filsys fs)
1415 return (fs->flags & EXT2_FLAG_IB_DIRTY);
1419 * Check to see if a filesystem's block bitmap is dirty
1421 _INLINE_ int ext2fs_test_bb_dirty(ext2_filsys fs)
1423 return (fs->flags & EXT2_FLAG_BB_DIRTY);
1427 * Return the group # of a block
1429 _INLINE_ int ext2fs_group_of_blk(ext2_filsys fs, blk_t blk)
1431 return ext2fs_group_of_blk2(fs, blk);
1434 * Return the group # of an inode number
1436 _INLINE_ int ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino)
1438 return (ino - 1) / fs->super->s_inodes_per_group;
1442 * Return the first block (inclusive) in a group
1444 _INLINE_ blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group)
1446 return ext2fs_group_first_block2(fs, group);
1450 * Return the last block (inclusive) in a group
1452 _INLINE_ blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group)
1454 return ext2fs_group_last_block2(fs, group);
1457 _INLINE_ blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
1458 struct ext2_inode *inode)
1460 return ext2fs_inode_data_blocks2(fs, inode);
1464 * This is an efficient, overflow safe way of calculating ceil((1.0 * a) / b)
1466 _INLINE_ unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b)
1470 return ((a - 1) / b) + 1;
1473 _INLINE_ __u64 ext2fs_div64_ceil(__u64 a, __u64 b)
1477 return ((a - 1) / b) + 1;
1487 #endif /* _EXT2FS_EXT2FS_H */