4 * Copyright (C) 1993, 1994, 1995, 1996 Theodore Ts'o.
7 * This file may be redistributed under the terms of the GNU Library
8 * General Public License, version 2.
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_entry2 {
131 e2_blkcnt_t blockcnt;
134 /* Ye Olde 32-bit version */
135 struct ext2_db_entry {
141 typedef struct ext2_struct_dblist *ext2_dblist;
143 #define DBLIST_ABORT 1
146 * ext2_fileio definitions
149 #define EXT2_FILE_WRITE 0x0001
150 #define EXT2_FILE_CREATE 0x0002
152 #define EXT2_FILE_MASK 0x00FF
154 #define EXT2_FILE_BUF_DIRTY 0x4000
155 #define EXT2_FILE_BUF_VALID 0x2000
157 typedef struct ext2_file *ext2_file_t;
159 #define EXT2_SEEK_SET 0
160 #define EXT2_SEEK_CUR 1
161 #define EXT2_SEEK_END 2
164 * Flags for the ext2_filsys structure and for ext2fs_open()
166 #define EXT2_FLAG_RW 0x01
167 #define EXT2_FLAG_CHANGED 0x02
168 #define EXT2_FLAG_DIRTY 0x04
169 #define EXT2_FLAG_VALID 0x08
170 #define EXT2_FLAG_IB_DIRTY 0x10
171 #define EXT2_FLAG_BB_DIRTY 0x20
172 #define EXT2_FLAG_SWAP_BYTES 0x40
173 #define EXT2_FLAG_SWAP_BYTES_READ 0x80
174 #define EXT2_FLAG_SWAP_BYTES_WRITE 0x100
175 #define EXT2_FLAG_MASTER_SB_ONLY 0x200
176 #define EXT2_FLAG_FORCE 0x400
177 #define EXT2_FLAG_SUPER_ONLY 0x800
178 #define EXT2_FLAG_JOURNAL_DEV_OK 0x1000
179 #define EXT2_FLAG_IMAGE_FILE 0x2000
180 #define EXT2_FLAG_EXCLUSIVE 0x4000
181 #define EXT2_FLAG_SOFTSUPP_FEATURES 0x8000
182 #define EXT2_FLAG_NOFREE_ON_ERROR 0x10000
183 #define EXT2_FLAG_64BITS 0x20000
184 #define EXT2_FLAG_PRINT_PROGRESS 0x40000
187 * Special flag in the ext2 inode i_flag field that means that this is
188 * a new inode. (So that ext2_write_inode() can clear extra fields.)
190 #define EXT2_NEW_INODE_FL 0x80000000
193 * Flags for mkjournal
195 * EXT2_MKJOURNAL_V1_SUPER Make a (deprecated) V1 journal superblock
197 #define EXT2_MKJOURNAL_V1_SUPER 0x0000001
199 struct opaque_ext2_group_desc;
201 struct struct_ext2_filsys {
206 struct ext2_super_block * super;
207 unsigned int blocksize;
209 dgrp_t group_desc_count;
210 unsigned long desc_blocks;
211 struct opaque_ext2_group_desc * group_desc;
212 int inode_blocks_per_group;
213 ext2fs_inode_bitmap inode_map;
214 ext2fs_block_bitmap block_map;
215 /* XXX FIXME-64: not 64-bit safe, but not used? */
216 errcode_t (*get_blocks)(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
217 errcode_t (*check_directory)(ext2_filsys fs, ext2_ino_t ino);
218 errcode_t (*write_bitmaps)(ext2_filsys fs);
219 errcode_t (*read_inode)(ext2_filsys fs, ext2_ino_t ino,
220 struct ext2_inode *inode);
221 errcode_t (*write_inode)(ext2_filsys fs, ext2_ino_t ino,
222 struct ext2_inode *inode);
223 ext2_badblocks_list badblocks;
225 __u32 stride; /* for mke2fs */
226 struct ext2_super_block * orig_super;
227 struct ext2_image_hdr * image_header;
231 * Reserved for future expansion
236 * Reserved for the use of the calling application.
243 struct ext2_inode_cache *icache;
247 * More callback functions
249 errcode_t (*get_alloc_block)(ext2_filsys fs, blk64_t goal,
251 void (*block_alloc_stats)(ext2_filsys fs, blk64_t blk, int inuse);
254 #if EXT2_FLAT_INCLUDES
255 #include "e2_bitops.h"
257 #include <ext2fs/bitops.h>
261 * Return flags for the block iterator functions
263 #define BLOCK_CHANGED 1
264 #define BLOCK_ABORT 2
265 #define BLOCK_ERROR 4
268 * Block interate flags
270 * BLOCK_FLAG_APPEND, or BLOCK_FLAG_HOLE, indicates that the interator
271 * function should be called on blocks where the block number is zero.
272 * This is used by ext2fs_expand_dir() to be able to add a new block
273 * to an inode. It can also be used for programs that want to be able
274 * to deal with files that contain "holes".
276 * BLOCK_FLAG_DEPTH_TRAVERSE indicates that the iterator function for
277 * the indirect, doubly indirect, etc. blocks should be called after
278 * all of the blocks containined in the indirect blocks are processed.
279 * This is useful if you are going to be deallocating blocks from an
282 * BLOCK_FLAG_DATA_ONLY indicates that the iterator function should be
283 * called for data blocks only.
285 * BLOCK_FLAG_READ_ONLY is a promise by the caller that it will not
286 * modify returned block number.
288 * BLOCK_FLAG_NO_LARGE is for internal use only. It informs
289 * ext2fs_block_iterate2 that large files won't be accepted.
291 #define BLOCK_FLAG_APPEND 1
292 #define BLOCK_FLAG_HOLE 1
293 #define BLOCK_FLAG_DEPTH_TRAVERSE 2
294 #define BLOCK_FLAG_DATA_ONLY 4
295 #define BLOCK_FLAG_READ_ONLY 8
297 #define BLOCK_FLAG_NO_LARGE 0x1000
300 * Magic "block count" return values for the block iterator function.
302 #define BLOCK_COUNT_IND (-1)
303 #define BLOCK_COUNT_DIND (-2)
304 #define BLOCK_COUNT_TIND (-3)
305 #define BLOCK_COUNT_TRANSLATOR (-4)
309 * Flags for ext2fs_move_blocks
311 #define EXT2_BMOVE_GET_DBLIST 0x0001
312 #define EXT2_BMOVE_DEBUG 0x0002
316 * Generic (non-filesystem layout specific) extents structure
319 #define EXT2_EXTENT_FLAGS_LEAF 0x0001
320 #define EXT2_EXTENT_FLAGS_UNINIT 0x0002
321 #define EXT2_EXTENT_FLAGS_SECOND_VISIT 0x0004
323 struct ext2fs_extent {
324 blk64_t e_pblk; /* first physical block */
325 blk64_t e_lblk; /* first logical block extent covers */
326 __u32 e_len; /* number of blocks covered by extent */
327 __u32 e_flags; /* extent flags */
330 typedef struct ext2_extent_handle *ext2_extent_handle_t;
331 typedef struct ext2_extent_path *ext2_extent_path_t;
334 * Flags used by ext2fs_extent_get()
336 #define EXT2_EXTENT_CURRENT 0x0000
337 #define EXT2_EXTENT_MOVE_MASK 0x000F
338 #define EXT2_EXTENT_ROOT 0x0001
339 #define EXT2_EXTENT_LAST_LEAF 0x0002
340 #define EXT2_EXTENT_FIRST_SIB 0x0003
341 #define EXT2_EXTENT_LAST_SIB 0x0004
342 #define EXT2_EXTENT_NEXT_SIB 0x0005
343 #define EXT2_EXTENT_PREV_SIB 0x0006
344 #define EXT2_EXTENT_NEXT_LEAF 0x0007
345 #define EXT2_EXTENT_PREV_LEAF 0x0008
346 #define EXT2_EXTENT_NEXT 0x0009
347 #define EXT2_EXTENT_PREV 0x000A
348 #define EXT2_EXTENT_UP 0x000B
349 #define EXT2_EXTENT_DOWN 0x000C
350 #define EXT2_EXTENT_DOWN_AND_LAST 0x000D
353 * Flags used by ext2fs_extent_insert()
355 #define EXT2_EXTENT_INSERT_AFTER 0x0001 /* insert after handle loc'n */
356 #define EXT2_EXTENT_INSERT_NOSPLIT 0x0002 /* insert may not cause split */
359 * Flags used by ext2fs_extent_delete()
361 #define EXT2_EXTENT_DELETE_KEEP_EMPTY 0x001 /* keep node if last extnt gone */
364 * Flags used by ext2fs_extent_set_bmap()
366 #define EXT2_EXTENT_SET_BMAP_UNINIT 0x0001
369 * Data structure returned by ext2fs_extent_get_info()
371 struct ext2_extent_info {
381 __u32 max_uninit_len;
385 * Flags for directory block reading and writing functions
387 #define EXT2_DIRBLOCK_V2_STRUCT 0x0001
390 * Return flags for the directory iterator functions
392 #define DIRENT_CHANGED 1
393 #define DIRENT_ABORT 2
394 #define DIRENT_ERROR 3
397 * Directory iterator flags
400 #define DIRENT_FLAG_INCLUDE_EMPTY 1
401 #define DIRENT_FLAG_INCLUDE_REMOVED 2
403 #define DIRENT_DOT_FILE 1
404 #define DIRENT_DOT_DOT_FILE 2
405 #define DIRENT_OTHER_FILE 3
406 #define DIRENT_DELETED_FILE 4
409 * Inode scan definitions
411 typedef struct ext2_struct_inode_scan *ext2_inode_scan;
416 #define EXT2_SF_CHK_BADBLOCKS 0x0001
417 #define EXT2_SF_BAD_INODE_BLK 0x0002
418 #define EXT2_SF_BAD_EXTRA_BYTES 0x0004
419 #define EXT2_SF_SKIP_MISSING_ITABLE 0x0008
420 #define EXT2_SF_DO_LAZY 0x0010
423 * ext2fs_check_if_mounted flags
425 #define EXT2_MF_MOUNTED 1
426 #define EXT2_MF_ISROOT 2
427 #define EXT2_MF_READONLY 4
428 #define EXT2_MF_SWAP 8
429 #define EXT2_MF_BUSY 16
432 * Ext2/linux mode flags. We define them here so that we don't need
433 * to depend on the OS's sys/stat.h, since we may be compiling on a
436 #define LINUX_S_IFMT 00170000
437 #define LINUX_S_IFSOCK 0140000
438 #define LINUX_S_IFLNK 0120000
439 #define LINUX_S_IFREG 0100000
440 #define LINUX_S_IFBLK 0060000
441 #define LINUX_S_IFDIR 0040000
442 #define LINUX_S_IFCHR 0020000
443 #define LINUX_S_IFIFO 0010000
444 #define LINUX_S_ISUID 0004000
445 #define LINUX_S_ISGID 0002000
446 #define LINUX_S_ISVTX 0001000
448 #define LINUX_S_IRWXU 00700
449 #define LINUX_S_IRUSR 00400
450 #define LINUX_S_IWUSR 00200
451 #define LINUX_S_IXUSR 00100
453 #define LINUX_S_IRWXG 00070
454 #define LINUX_S_IRGRP 00040
455 #define LINUX_S_IWGRP 00020
456 #define LINUX_S_IXGRP 00010
458 #define LINUX_S_IRWXO 00007
459 #define LINUX_S_IROTH 00004
460 #define LINUX_S_IWOTH 00002
461 #define LINUX_S_IXOTH 00001
463 #define LINUX_S_ISLNK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFLNK)
464 #define LINUX_S_ISREG(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFREG)
465 #define LINUX_S_ISDIR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFDIR)
466 #define LINUX_S_ISCHR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFCHR)
467 #define LINUX_S_ISBLK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFBLK)
468 #define LINUX_S_ISFIFO(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFIFO)
469 #define LINUX_S_ISSOCK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFSOCK)
472 * ext2 size of an inode
474 #define EXT2_I_SIZE(i) ((i)->i_size | ((__u64) (i)->i_size_high << 32))
477 * ext2_icount_t abstraction
479 #define EXT2_ICOUNT_OPT_INCREMENT 0x01
481 typedef struct ext2_icount *ext2_icount_t;
484 * Flags for ext2fs_bmap
486 #define BMAP_ALLOC 0x0001
487 #define BMAP_SET 0x0002
490 * Returned flags from ext2fs_bmap
492 #define BMAP_RET_UNINIT 0x0001
495 * Flags for imager.c functions
497 #define IMAGER_FLAG_INODEMAP 1
498 #define IMAGER_FLAG_SPARSEWRITE 2
501 * For checking structure magic numbers...
504 #define EXT2_CHECK_MAGIC(struct, code) \
505 if ((struct)->magic != (code)) return (code)
509 * For ext2 compression support
511 #define EXT2FS_COMPRESSED_BLKADDR ((blk_t) -1)
512 #define HOLE_BLKADDR(_b) ((_b) == 0 || (_b) == EXT2FS_COMPRESSED_BLKADDR)
515 * Features supported by this version of the library
517 #define EXT2_LIB_FEATURE_COMPAT_SUPP (EXT2_FEATURE_COMPAT_DIR_PREALLOC|\
518 EXT2_FEATURE_COMPAT_IMAGIC_INODES|\
519 EXT3_FEATURE_COMPAT_HAS_JOURNAL|\
520 EXT2_FEATURE_COMPAT_RESIZE_INODE|\
521 EXT2_FEATURE_COMPAT_DIR_INDEX|\
522 EXT2_FEATURE_COMPAT_EXT_ATTR)
524 /* This #ifdef is temporary until compression is fully supported */
525 #ifdef ENABLE_COMPRESSION
526 #ifndef I_KNOW_THAT_COMPRESSION_IS_EXPERIMENTAL
527 /* If the below warning bugs you, then have
528 `CPPFLAGS=-DI_KNOW_THAT_COMPRESSION_IS_EXPERIMENTAL' in your
529 environment at configure time. */
530 #warning "Compression support is experimental"
532 #define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\
533 EXT2_FEATURE_INCOMPAT_COMPRESSION|\
534 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\
535 EXT2_FEATURE_INCOMPAT_META_BG|\
536 EXT3_FEATURE_INCOMPAT_RECOVER|\
537 EXT3_FEATURE_INCOMPAT_EXTENTS|\
538 EXT4_FEATURE_INCOMPAT_FLEX_BG|\
539 EXT4_FEATURE_INCOMPAT_64BIT)
541 #define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\
542 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\
543 EXT2_FEATURE_INCOMPAT_META_BG|\
544 EXT3_FEATURE_INCOMPAT_RECOVER|\
545 EXT3_FEATURE_INCOMPAT_EXTENTS|\
546 EXT4_FEATURE_INCOMPAT_FLEX_BG|\
547 EXT4_FEATURE_INCOMPAT_64BIT)
549 #define EXT2_LIB_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|\
550 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|\
551 EXT2_FEATURE_RO_COMPAT_LARGE_FILE|\
552 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|\
553 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|\
554 EXT4_FEATURE_RO_COMPAT_GDT_CSUM)
557 * These features are only allowed if EXT2_FLAG_SOFTSUPP_FEATURES is passed
560 #define EXT2_LIB_SOFTSUPP_INCOMPAT (0)
561 #define EXT2_LIB_SOFTSUPP_RO_COMPAT (0)
564 * function prototypes
568 extern errcode_t ext2fs_new_inode(ext2_filsys fs, ext2_ino_t dir, int mode,
569 ext2fs_inode_bitmap map, ext2_ino_t *ret);
570 extern errcode_t ext2fs_new_block(ext2_filsys fs, blk_t goal,
571 ext2fs_block_bitmap map, blk_t *ret);
572 extern errcode_t ext2fs_new_block2(ext2_filsys fs, blk64_t goal,
573 ext2fs_block_bitmap map, blk64_t *ret);
574 extern errcode_t ext2fs_get_free_blocks(ext2_filsys fs, blk_t start,
575 blk_t finish, int num,
576 ext2fs_block_bitmap map,
578 extern errcode_t ext2fs_get_free_blocks2(ext2_filsys fs, blk64_t start,
579 blk64_t finish, int num,
580 ext2fs_block_bitmap map,
582 extern errcode_t ext2fs_alloc_block(ext2_filsys fs, blk_t goal,
583 char *block_buf, blk_t *ret);
584 extern errcode_t ext2fs_alloc_block2(ext2_filsys fs, blk64_t goal,
585 char *block_buf, blk64_t *ret);
586 extern void ext2fs_set_alloc_block_callback(ext2_filsys fs,
587 errcode_t (*func)(ext2_filsys fs,
590 errcode_t (**old)(ext2_filsys fs,
595 extern int ext2fs_reserve_super_and_bgd(ext2_filsys fs,
597 ext2fs_block_bitmap bmap);
598 extern void ext2fs_set_block_alloc_stats_callback(ext2_filsys fs,
599 void (*func)(ext2_filsys fs,
602 void (**old)(ext2_filsys fs,
607 void ext2fs_inode_alloc_stats(ext2_filsys fs, ext2_ino_t ino, int inuse);
608 void ext2fs_inode_alloc_stats2(ext2_filsys fs, ext2_ino_t ino,
609 int inuse, int isdir);
610 void ext2fs_block_alloc_stats(ext2_filsys fs, blk_t blk, int inuse);
611 void ext2fs_block_alloc_stats2(ext2_filsys fs, blk64_t blk, int inuse);
614 extern errcode_t ext2fs_allocate_tables(ext2_filsys fs);
615 extern errcode_t ext2fs_allocate_group_table(ext2_filsys fs, dgrp_t group,
616 ext2fs_block_bitmap bmap);
619 extern errcode_t ext2fs_u32_list_create(ext2_u32_list *ret, int size);
620 extern errcode_t ext2fs_u32_list_add(ext2_u32_list bb, __u32 blk);
621 extern int ext2fs_u32_list_find(ext2_u32_list bb, __u32 blk);
622 extern int ext2fs_u32_list_test(ext2_u32_list bb, blk_t blk);
623 extern errcode_t ext2fs_u32_list_iterate_begin(ext2_u32_list bb,
624 ext2_u32_iterate *ret);
625 extern int ext2fs_u32_list_iterate(ext2_u32_iterate iter, blk_t *blk);
626 extern void ext2fs_u32_list_iterate_end(ext2_u32_iterate iter);
627 extern errcode_t ext2fs_u32_copy(ext2_u32_list src, ext2_u32_list *dest);
628 extern int ext2fs_u32_list_equal(ext2_u32_list bb1, ext2_u32_list bb2);
630 extern errcode_t ext2fs_badblocks_list_create(ext2_badblocks_list *ret,
632 extern errcode_t ext2fs_badblocks_list_add(ext2_badblocks_list bb,
634 extern int ext2fs_badblocks_list_test(ext2_badblocks_list bb,
636 extern int ext2fs_u32_list_del(ext2_u32_list bb, __u32 blk);
637 extern void ext2fs_badblocks_list_del(ext2_u32_list bb, __u32 blk);
639 ext2fs_badblocks_list_iterate_begin(ext2_badblocks_list bb,
640 ext2_badblocks_iterate *ret);
641 extern int ext2fs_badblocks_list_iterate(ext2_badblocks_iterate iter,
643 extern void ext2fs_badblocks_list_iterate_end(ext2_badblocks_iterate iter);
644 extern errcode_t ext2fs_badblocks_copy(ext2_badblocks_list src,
645 ext2_badblocks_list *dest);
646 extern int ext2fs_badblocks_equal(ext2_badblocks_list bb1,
647 ext2_badblocks_list bb2);
648 extern int ext2fs_u32_list_count(ext2_u32_list bb);
651 extern errcode_t badblocks_list_create(badblocks_list *ret, int size);
652 extern errcode_t badblocks_list_add(badblocks_list bb, blk_t blk);
653 extern int badblocks_list_test(badblocks_list bb, blk_t blk);
654 extern errcode_t badblocks_list_iterate_begin(badblocks_list bb,
655 badblocks_iterate *ret);
656 extern int badblocks_list_iterate(badblocks_iterate iter, blk_t *blk);
657 extern void badblocks_list_iterate_end(badblocks_iterate iter);
658 extern void badblocks_list_free(badblocks_list bb);
661 extern errcode_t ext2fs_update_bb_inode(ext2_filsys fs,
662 ext2_badblocks_list bb_list);
665 extern void ext2fs_free_block_bitmap(ext2fs_block_bitmap bitmap);
666 extern void ext2fs_free_inode_bitmap(ext2fs_inode_bitmap bitmap);
667 extern errcode_t ext2fs_copy_bitmap(ext2fs_generic_bitmap src,
668 ext2fs_generic_bitmap *dest);
669 extern errcode_t ext2fs_write_inode_bitmap(ext2_filsys fs);
670 extern errcode_t ext2fs_write_block_bitmap (ext2_filsys fs);
671 extern errcode_t ext2fs_read_inode_bitmap (ext2_filsys fs);
672 extern errcode_t ext2fs_read_block_bitmap(ext2_filsys fs);
673 extern errcode_t ext2fs_allocate_block_bitmap(ext2_filsys fs,
675 ext2fs_block_bitmap *ret);
676 extern errcode_t ext2fs_allocate_inode_bitmap(ext2_filsys fs,
678 ext2fs_inode_bitmap *ret);
679 extern errcode_t ext2fs_fudge_inode_bitmap_end(ext2fs_inode_bitmap bitmap,
680 ext2_ino_t end, ext2_ino_t *oend);
681 extern errcode_t ext2fs_fudge_block_bitmap_end(ext2fs_block_bitmap bitmap,
682 blk_t end, blk_t *oend);
683 extern errcode_t ext2fs_fudge_block_bitmap_end2(ext2fs_block_bitmap bitmap,
684 blk64_t end, blk64_t *oend);
685 extern void ext2fs_clear_inode_bitmap(ext2fs_inode_bitmap bitmap);
686 extern void ext2fs_clear_block_bitmap(ext2fs_block_bitmap bitmap);
687 extern errcode_t ext2fs_read_bitmaps(ext2_filsys fs);
688 extern errcode_t ext2fs_write_bitmaps(ext2_filsys fs);
689 extern errcode_t ext2fs_resize_inode_bitmap(__u32 new_end, __u32 new_real_end,
690 ext2fs_inode_bitmap bmap);
691 extern errcode_t ext2fs_resize_inode_bitmap2(__u64 new_end,
693 ext2fs_inode_bitmap bmap);
694 extern errcode_t ext2fs_resize_block_bitmap(__u32 new_end, __u32 new_real_end,
695 ext2fs_block_bitmap bmap);
696 extern errcode_t ext2fs_resize_block_bitmap2(__u64 new_end,
698 ext2fs_block_bitmap bmap);
699 extern errcode_t ext2fs_compare_block_bitmap(ext2fs_block_bitmap bm1,
700 ext2fs_block_bitmap bm2);
701 extern errcode_t ext2fs_compare_inode_bitmap(ext2fs_inode_bitmap bm1,
702 ext2fs_inode_bitmap bm2);
703 extern errcode_t ext2fs_set_inode_bitmap_range(ext2fs_inode_bitmap bmap,
704 ext2_ino_t start, unsigned int num,
706 extern errcode_t ext2fs_set_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
707 __u64 start, size_t num,
709 extern errcode_t ext2fs_get_inode_bitmap_range(ext2fs_inode_bitmap bmap,
710 ext2_ino_t start, unsigned int num,
712 extern errcode_t ext2fs_get_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
713 __u64 start, size_t num,
715 extern errcode_t ext2fs_set_block_bitmap_range(ext2fs_block_bitmap bmap,
716 blk_t start, unsigned int num,
718 extern errcode_t ext2fs_set_block_bitmap_range2(ext2fs_block_bitmap bmap,
719 blk64_t start, size_t num,
721 extern errcode_t ext2fs_get_block_bitmap_range(ext2fs_block_bitmap bmap,
722 blk_t start, unsigned int num,
724 extern errcode_t ext2fs_get_block_bitmap_range2(ext2fs_block_bitmap bmap,
725 blk64_t start, size_t num,
729 extern dgrp_t ext2fs_group_of_blk2(ext2_filsys fs, blk64_t);
730 extern blk64_t ext2fs_group_first_block2(ext2_filsys fs, dgrp_t group);
731 extern blk64_t ext2fs_group_last_block2(ext2_filsys fs, dgrp_t group);
732 extern blk64_t ext2fs_inode_data_blocks2(ext2_filsys fs,
733 struct ext2_inode *inode);
734 extern blk64_t ext2fs_inode_i_blocks(ext2_filsys fs,
735 struct ext2_inode *inode);
736 extern blk64_t ext2fs_blocks_count(struct ext2_super_block *super);
737 extern void ext2fs_blocks_count_set(struct ext2_super_block *super,
739 extern void ext2fs_blocks_count_add(struct ext2_super_block *super,
741 extern blk64_t ext2fs_r_blocks_count(struct ext2_super_block *super);
742 extern void ext2fs_r_blocks_count_set(struct ext2_super_block *super,
744 extern void ext2fs_r_blocks_count_add(struct ext2_super_block *super,
746 extern blk64_t ext2fs_free_blocks_count(struct ext2_super_block *super);
747 extern void ext2fs_free_blocks_count_set(struct ext2_super_block *super,
749 extern void ext2fs_free_blocks_count_add(struct ext2_super_block *super,
751 /* Block group descriptor accessor functions */
752 extern struct ext2_group_desc *ext2fs_group_desc(ext2_filsys fs,
753 struct opaque_ext2_group_desc *gdp,
755 extern blk64_t ext2fs_block_bitmap_loc(ext2_filsys fs, dgrp_t group);
756 extern void ext2fs_block_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
758 extern blk64_t ext2fs_inode_bitmap_loc(ext2_filsys fs, dgrp_t group);
759 extern void ext2fs_inode_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
761 extern blk64_t ext2fs_inode_table_loc(ext2_filsys fs, dgrp_t group);
762 extern void ext2fs_inode_table_loc_set(ext2_filsys fs, dgrp_t group,
764 extern __u32 ext2fs_bg_free_blocks_count(ext2_filsys fs, dgrp_t group);
765 extern void ext2fs_bg_free_blocks_count_set(ext2_filsys fs, dgrp_t group,
767 extern __u32 ext2fs_bg_free_inodes_count(ext2_filsys fs, dgrp_t group);
768 extern void ext2fs_bg_free_inodes_count_set(ext2_filsys fs, dgrp_t group,
770 extern __u32 ext2fs_bg_used_dirs_count(ext2_filsys fs, dgrp_t group);
771 extern void ext2fs_bg_used_dirs_count_set(ext2_filsys fs, dgrp_t group,
773 extern __u32 ext2fs_bg_itable_unused(ext2_filsys fs, dgrp_t group);
774 extern void ext2fs_bg_itable_unused_set(ext2_filsys fs, dgrp_t group,
776 extern __u16 ext2fs_bg_flags(ext2_filsys fs, dgrp_t group);
777 extern void ext2fs_bg_flags_zap(ext2_filsys fs, dgrp_t group);
778 extern int ext2fs_bg_flags_test(ext2_filsys fs, dgrp_t group, __u16 bg_flag);
779 extern void ext2fs_bg_flags_set(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
780 extern void ext2fs_bg_flags_clear(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
781 extern __u16 ext2fs_bg_checksum(ext2_filsys fs, dgrp_t group);
782 extern void ext2fs_bg_checksum_set(ext2_filsys fs, dgrp_t group, __u16 checksum);
783 extern blk64_t ext2fs_file_acl_block(const struct ext2_inode *inode);
784 extern void ext2fs_file_acl_block_set(struct ext2_inode *inode, blk64_t blk);
787 extern errcode_t ext2fs_block_iterate(ext2_filsys fs,
791 int (*func)(ext2_filsys fs,
796 errcode_t ext2fs_block_iterate2(ext2_filsys fs,
800 int (*func)(ext2_filsys fs,
802 e2_blkcnt_t blockcnt,
807 errcode_t ext2fs_block_iterate3(ext2_filsys fs,
811 int (*func)(ext2_filsys fs,
813 e2_blkcnt_t blockcnt,
820 extern errcode_t ext2fs_bmap(ext2_filsys fs, ext2_ino_t ino,
821 struct ext2_inode *inode,
822 char *block_buf, int bmap_flags,
823 blk_t block, blk_t *phys_blk);
824 extern errcode_t ext2fs_bmap2(ext2_filsys fs, ext2_ino_t ino,
825 struct ext2_inode *inode,
826 char *block_buf, int bmap_flags, blk64_t block,
827 int *ret_flags, blk64_t *phys_blk);
831 extern errcode_t ext2fs_move_blocks(ext2_filsys fs,
832 ext2fs_block_bitmap reserve,
833 ext2fs_block_bitmap alloc_map,
838 extern errcode_t ext2fs_check_desc(ext2_filsys fs);
841 extern errcode_t ext2fs_close(ext2_filsys fs);
842 extern errcode_t ext2fs_flush(ext2_filsys fs);
843 extern int ext2fs_bg_has_super(ext2_filsys fs, int group_block);
844 extern errcode_t ext2fs_super_and_bgd_loc2(ext2_filsys fs,
846 blk64_t *ret_super_blk,
847 blk64_t *ret_old_desc_blk,
848 blk64_t *ret_new_desc_blk,
849 blk_t *ret_used_blks);
850 extern int ext2fs_super_and_bgd_loc(ext2_filsys fs,
852 blk_t *ret_super_blk,
853 blk_t *ret_old_desc_blk,
854 blk_t *ret_new_desc_blk,
856 extern void ext2fs_update_dynamic_rev(ext2_filsys fs);
859 extern void ext2fs_group_desc_csum_set(ext2_filsys fs, dgrp_t group);
860 extern int ext2fs_group_desc_csum_verify(ext2_filsys fs, dgrp_t group);
861 extern errcode_t ext2fs_set_gdt_csum(ext2_filsys fs);
865 extern errcode_t ext2fs_get_num_dirs(ext2_filsys fs, ext2_ino_t *ret_num_dirs);
866 extern errcode_t ext2fs_init_dblist(ext2_filsys fs, ext2_dblist *ret_dblist);
867 extern errcode_t ext2fs_add_dir_block(ext2_dblist dblist, ext2_ino_t ino,
868 blk_t blk, int blockcnt);
869 extern errcode_t ext2fs_add_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
870 blk64_t blk, e2_blkcnt_t blockcnt);
871 extern void ext2fs_dblist_sort(ext2_dblist dblist,
872 EXT2_QSORT_TYPE (*sortfunc)(const void *,
874 extern void ext2fs_dblist_sort2(ext2_dblist dblist,
875 EXT2_QSORT_TYPE (*sortfunc)(const void *,
877 extern errcode_t ext2fs_dblist_iterate(ext2_dblist dblist,
878 int (*func)(ext2_filsys fs, struct ext2_db_entry *db_info,
881 extern errcode_t ext2fs_dblist_iterate2(ext2_dblist dblist,
882 int (*func)(ext2_filsys fs, struct ext2_db_entry2 *db_info,
885 extern errcode_t ext2fs_set_dir_block(ext2_dblist dblist, ext2_ino_t ino,
886 blk_t blk, int blockcnt);
887 extern errcode_t ext2fs_set_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
888 blk64_t blk, e2_blkcnt_t blockcnt);
889 extern errcode_t ext2fs_copy_dblist(ext2_dblist src,
891 extern int ext2fs_dblist_count(ext2_dblist dblist);
892 extern blk64_t ext2fs_dblist_count2(ext2_dblist dblist);
893 extern errcode_t ext2fs_dblist_get_last(ext2_dblist dblist,
894 struct ext2_db_entry **entry);
895 extern errcode_t ext2fs_dblist_get_last2(ext2_dblist dblist,
896 struct ext2_db_entry2 **entry);
897 extern errcode_t ext2fs_dblist_drop_last(ext2_dblist dblist);
901 ext2fs_dblist_dir_iterate(ext2_dblist dblist,
904 int (*func)(ext2_ino_t dir,
906 struct ext2_dir_entry *dirent,
914 extern errcode_t ext2fs_read_dir_block(ext2_filsys fs, blk_t block,
916 extern errcode_t ext2fs_read_dir_block2(ext2_filsys fs, blk_t block,
917 void *buf, int flags);
918 extern errcode_t ext2fs_read_dir_block3(ext2_filsys fs, blk64_t block,
919 void *buf, int flags);
920 extern errcode_t ext2fs_write_dir_block(ext2_filsys fs, blk_t block,
922 extern errcode_t ext2fs_write_dir_block2(ext2_filsys fs, blk_t block,
923 void *buf, int flags);
924 extern errcode_t ext2fs_write_dir_block3(ext2_filsys fs, blk64_t block,
925 void *buf, int flags);
928 extern errcode_t ext2fs_dirhash(int version, const char *name, int len,
930 ext2_dirhash_t *ret_hash,
931 ext2_dirhash_t *ret_minor_hash);
935 extern errcode_t ext2fs_get_rec_len(ext2_filsys fs,
936 struct ext2_dir_entry *dirent,
937 unsigned int *rec_len);
938 extern errcode_t ext2fs_set_rec_len(ext2_filsys fs,
940 struct ext2_dir_entry *dirent);
941 extern errcode_t ext2fs_dir_iterate(ext2_filsys fs,
945 int (*func)(struct ext2_dir_entry *dirent,
951 extern errcode_t ext2fs_dir_iterate2(ext2_filsys fs,
955 int (*func)(ext2_ino_t dir,
957 struct ext2_dir_entry *dirent,
965 extern errcode_t ext2fs_dup_handle(ext2_filsys src, ext2_filsys *dest);
968 extern errcode_t ext2fs_expand_dir(ext2_filsys fs, ext2_ino_t dir);
971 extern __u32 ext2fs_ext_attr_hash_entry(struct ext2_ext_attr_entry *entry,
973 extern errcode_t ext2fs_read_ext_attr(ext2_filsys fs, blk_t block, void *buf);
974 extern errcode_t ext2fs_read_ext_attr2(ext2_filsys fs, blk64_t block,
976 extern errcode_t ext2fs_write_ext_attr(ext2_filsys fs, blk_t block,
978 extern errcode_t ext2fs_write_ext_attr2(ext2_filsys fs, blk64_t block,
980 extern errcode_t ext2fs_adjust_ea_refcount(ext2_filsys fs, blk_t blk,
982 int adjust, __u32 *newcount);
983 extern errcode_t ext2fs_adjust_ea_refcount2(ext2_filsys fs, blk64_t blk,
985 int adjust, __u32 *newcount);
988 extern errcode_t ext2fs_extent_header_verify(void *ptr, int size);
989 extern errcode_t ext2fs_extent_open(ext2_filsys fs, ext2_ino_t ino,
990 ext2_extent_handle_t *handle);
991 extern errcode_t ext2fs_extent_open2(ext2_filsys fs, ext2_ino_t ino,
992 struct ext2_inode *inode,
993 ext2_extent_handle_t *ret_handle);
994 extern void ext2fs_extent_free(ext2_extent_handle_t handle);
995 extern errcode_t ext2fs_extent_get(ext2_extent_handle_t handle,
996 int flags, struct ext2fs_extent *extent);
997 extern errcode_t ext2fs_extent_replace(ext2_extent_handle_t handle, int flags,
998 struct ext2fs_extent *extent);
999 extern errcode_t ext2fs_extent_insert(ext2_extent_handle_t handle, int flags,
1000 struct ext2fs_extent *extent);
1001 extern errcode_t ext2fs_extent_set_bmap(ext2_extent_handle_t handle,
1002 blk64_t logical, blk64_t physical,
1004 extern errcode_t ext2fs_extent_delete(ext2_extent_handle_t handle, int flags);
1005 extern errcode_t ext2fs_extent_get_info(ext2_extent_handle_t handle,
1006 struct ext2_extent_info *info);
1007 extern errcode_t ext2fs_extent_goto(ext2_extent_handle_t handle,
1011 extern errcode_t ext2fs_file_open2(ext2_filsys fs, ext2_ino_t ino,
1012 struct ext2_inode *inode,
1013 int flags, ext2_file_t *ret);
1014 extern errcode_t ext2fs_file_open(ext2_filsys fs, ext2_ino_t ino,
1015 int flags, ext2_file_t *ret);
1016 extern ext2_filsys ext2fs_file_get_fs(ext2_file_t file);
1017 extern errcode_t ext2fs_file_close(ext2_file_t file);
1018 extern errcode_t ext2fs_file_flush(ext2_file_t file);
1019 extern errcode_t ext2fs_file_read(ext2_file_t file, void *buf,
1020 unsigned int wanted, unsigned int *got);
1021 extern errcode_t ext2fs_file_write(ext2_file_t file, const void *buf,
1022 unsigned int nbytes, unsigned int *written);
1023 extern errcode_t ext2fs_file_llseek(ext2_file_t file, __u64 offset,
1024 int whence, __u64 *ret_pos);
1025 extern errcode_t ext2fs_file_lseek(ext2_file_t file, ext2_off_t offset,
1026 int whence, ext2_off_t *ret_pos);
1027 errcode_t ext2fs_file_get_lsize(ext2_file_t file, __u64 *ret_size);
1028 extern ext2_off_t ext2fs_file_get_size(ext2_file_t file);
1029 extern errcode_t ext2fs_file_set_size(ext2_file_t file, ext2_off_t size);
1032 extern char *ext2fs_find_block_device(dev_t device);
1035 extern errcode_t ext2fs_sync_device(int fd, int flushb);
1038 extern void ext2fs_free(ext2_filsys fs);
1039 extern void ext2fs_free_dblist(ext2_dblist dblist);
1040 extern void ext2fs_badblocks_list_free(ext2_badblocks_list bb);
1041 extern void ext2fs_u32_list_free(ext2_u32_list bb);
1044 extern void ext2fs_free_generic_bitmap(ext2fs_inode_bitmap bitmap);
1045 extern errcode_t ext2fs_make_generic_bitmap(errcode_t magic, ext2_filsys fs,
1046 __u32 start, __u32 end,
1048 const char *descr, char *init_map,
1049 ext2fs_generic_bitmap *ret);
1050 extern errcode_t ext2fs_allocate_generic_bitmap(__u32 start,
1054 ext2fs_generic_bitmap *ret);
1055 extern errcode_t ext2fs_copy_generic_bitmap(ext2fs_generic_bitmap src,
1056 ext2fs_generic_bitmap *dest);
1057 extern void ext2fs_clear_generic_bitmap(ext2fs_generic_bitmap bitmap);
1058 extern errcode_t ext2fs_fudge_generic_bitmap_end(ext2fs_inode_bitmap bitmap,
1063 extern void ext2fs_set_generic_bitmap_padding(ext2fs_generic_bitmap map);
1064 extern errcode_t ext2fs_resize_generic_bitmap(errcode_t magic,
1067 ext2fs_generic_bitmap bmap);
1068 extern errcode_t ext2fs_compare_generic_bitmap(errcode_t magic, errcode_t neq,
1069 ext2fs_generic_bitmap bm1,
1070 ext2fs_generic_bitmap bm2);
1071 extern errcode_t ext2fs_get_generic_bitmap_range(ext2fs_generic_bitmap bmap,
1073 __u32 start, __u32 num,
1075 extern errcode_t ext2fs_set_generic_bitmap_range(ext2fs_generic_bitmap bmap,
1077 __u32 start, __u32 num,
1080 /* gen_bitmap64.c */
1081 void ext2fs_free_generic_bmap(ext2fs_generic_bitmap bmap);
1082 errcode_t ext2fs_alloc_generic_bmap(ext2_filsys fs, errcode_t magic,
1083 int type, __u64 start, __u64 end,
1086 ext2fs_generic_bitmap *ret);
1087 errcode_t ext2fs_copy_generic_bmap(ext2fs_generic_bitmap src,
1088 ext2fs_generic_bitmap *dest);
1089 void ext2fs_clear_generic_bmap(ext2fs_generic_bitmap bitmap);
1090 errcode_t ext2fs_fudge_generic_bmap_end(ext2fs_generic_bitmap bitmap,
1092 __u64 end, __u64 *oend);
1093 void ext2fs_set_generic_bmap_padding(ext2fs_generic_bitmap bmap);
1094 errcode_t ext2fs_resize_generic_bmap(ext2fs_generic_bitmap bmap,
1096 __u64 new_real_end);
1097 errcode_t ext2fs_compare_generic_bmap(errcode_t neq,
1098 ext2fs_generic_bitmap bm1,
1099 ext2fs_generic_bitmap bm2);
1100 errcode_t ext2fs_get_generic_bmap_range(ext2fs_generic_bitmap bmap,
1101 __u64 start, unsigned int num,
1103 errcode_t ext2fs_set_generic_bmap_range(ext2fs_generic_bitmap bmap,
1104 __u64 start, unsigned int num,
1108 extern errcode_t ext2fs_get_device_size(const char *file, int blocksize,
1110 extern errcode_t ext2fs_get_device_size2(const char *file, int blocksize,
1111 blk64_t *retblocks);
1114 errcode_t ext2fs_get_device_sectsize(const char *file, int *sectsize);
1115 errcode_t ext2fs_get_device_phys_sectsize(const char *file, int *sectsize);
1118 errcode_t ext2fs_iblk_add_blocks(ext2_filsys fs, struct ext2_inode *inode,
1119 blk64_t num_blocks);
1120 errcode_t ext2fs_iblk_sub_blocks(ext2_filsys fs, struct ext2_inode *inode,
1121 blk64_t num_blocks);
1122 errcode_t ext2fs_iblk_set(ext2_filsys fs, struct ext2_inode *inode, blk64_t b);
1125 extern errcode_t ext2fs_image_inode_write(ext2_filsys fs, int fd, int flags);
1126 extern errcode_t ext2fs_image_inode_read(ext2_filsys fs, int fd, int flags);
1127 extern errcode_t ext2fs_image_super_write(ext2_filsys fs, int fd, int flags);
1128 extern errcode_t ext2fs_image_super_read(ext2_filsys fs, int fd, int flags);
1129 extern errcode_t ext2fs_image_bitmap_write(ext2_filsys fs, int fd, int flags);
1130 extern errcode_t ext2fs_image_bitmap_read(ext2_filsys fs, int fd, int flags);
1133 errcode_t ext2fs_read_ind_block(ext2_filsys fs, blk_t blk, void *buf);
1134 errcode_t ext2fs_write_ind_block(ext2_filsys fs, blk_t blk, void *buf);
1137 extern errcode_t ext2fs_initialize(const char *name, int flags,
1138 struct ext2_super_block *param,
1139 io_manager manager, ext2_filsys *ret_fs);
1142 extern void ext2fs_free_icount(ext2_icount_t icount);
1143 extern errcode_t ext2fs_create_icount_tdb(ext2_filsys fs, char *tdb_dir,
1144 int flags, ext2_icount_t *ret);
1145 extern errcode_t ext2fs_create_icount2(ext2_filsys fs, int flags,
1147 ext2_icount_t hint, ext2_icount_t *ret);
1148 extern errcode_t ext2fs_create_icount(ext2_filsys fs, int flags,
1150 ext2_icount_t *ret);
1151 extern errcode_t ext2fs_icount_fetch(ext2_icount_t icount, ext2_ino_t ino,
1153 extern errcode_t ext2fs_icount_increment(ext2_icount_t icount, ext2_ino_t ino,
1155 extern errcode_t ext2fs_icount_decrement(ext2_icount_t icount, ext2_ino_t ino,
1157 extern errcode_t ext2fs_icount_store(ext2_icount_t icount, ext2_ino_t ino,
1159 extern ext2_ino_t ext2fs_get_icount_size(ext2_icount_t icount);
1160 errcode_t ext2fs_icount_validate(ext2_icount_t icount, FILE *);
1163 extern errcode_t ext2fs_flush_icache(ext2_filsys fs);
1164 extern errcode_t ext2fs_get_next_inode_full(ext2_inode_scan scan,
1166 struct ext2_inode *inode,
1168 extern errcode_t ext2fs_open_inode_scan(ext2_filsys fs, int buffer_blocks,
1169 ext2_inode_scan *ret_scan);
1170 extern void ext2fs_close_inode_scan(ext2_inode_scan scan);
1171 extern errcode_t ext2fs_get_next_inode(ext2_inode_scan scan, ext2_ino_t *ino,
1172 struct ext2_inode *inode);
1173 extern errcode_t ext2fs_inode_scan_goto_blockgroup(ext2_inode_scan scan,
1175 extern void ext2fs_set_inode_callback
1176 (ext2_inode_scan scan,
1177 errcode_t (*done_group)(ext2_filsys fs,
1178 ext2_inode_scan scan,
1181 void *done_group_data);
1182 extern int ext2fs_inode_scan_flags(ext2_inode_scan scan, int set_flags,
1184 extern errcode_t ext2fs_read_inode_full(ext2_filsys fs, ext2_ino_t ino,
1185 struct ext2_inode * inode,
1187 extern errcode_t ext2fs_read_inode (ext2_filsys fs, ext2_ino_t ino,
1188 struct ext2_inode * inode);
1189 extern errcode_t ext2fs_write_inode_full(ext2_filsys fs, ext2_ino_t ino,
1190 struct ext2_inode * inode,
1192 extern errcode_t ext2fs_write_inode(ext2_filsys fs, ext2_ino_t ino,
1193 struct ext2_inode * inode);
1194 extern errcode_t ext2fs_write_new_inode(ext2_filsys fs, ext2_ino_t ino,
1195 struct ext2_inode * inode);
1196 extern errcode_t ext2fs_get_blocks(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
1197 extern errcode_t ext2fs_check_directory(ext2_filsys fs, ext2_ino_t ino);
1200 extern io_manager inode_io_manager;
1201 extern errcode_t ext2fs_inode_io_intern(ext2_filsys fs, ext2_ino_t ino,
1203 extern errcode_t ext2fs_inode_io_intern2(ext2_filsys fs, ext2_ino_t ino,
1204 struct ext2_inode *inode,
1208 extern errcode_t ext2fs_check_if_mounted(const char *file, int *mount_flags);
1209 extern errcode_t ext2fs_check_mount_point(const char *device, int *mount_flags,
1210 char *mtpt, int mtlen);
1213 extern errcode_t ext2fs_lookup(ext2_filsys fs, ext2_ino_t dir, const char *name,
1214 int namelen, char *buf, ext2_ino_t *inode);
1215 extern errcode_t ext2fs_namei(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1216 const char *name, ext2_ino_t *inode);
1217 errcode_t ext2fs_namei_follow(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1218 const char *name, ext2_ino_t *inode);
1219 extern errcode_t ext2fs_follow_link(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1220 ext2_ino_t inode, ext2_ino_t *res_inode);
1223 int ext2fs_native_flag(void);
1226 extern errcode_t ext2fs_new_dir_block(ext2_filsys fs, ext2_ino_t dir_ino,
1227 ext2_ino_t parent_ino, char **block);
1230 extern errcode_t ext2fs_mkdir(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t inum,
1234 extern errcode_t ext2fs_zero_blocks(ext2_filsys fs, blk_t blk, int num,
1235 blk_t *ret_blk, int *ret_count);
1236 extern errcode_t ext2fs_zero_blocks2(ext2_filsys fs, blk64_t blk, int num,
1237 blk64_t *ret_blk, int *ret_count);
1238 extern errcode_t ext2fs_create_journal_superblock(ext2_filsys fs,
1239 __u32 size, int flags,
1241 extern errcode_t ext2fs_add_journal_device(ext2_filsys fs,
1242 ext2_filsys journal_dev);
1243 extern errcode_t ext2fs_add_journal_inode(ext2_filsys fs, blk_t size,
1245 extern int ext2fs_default_journal_size(__u64 blocks);
1248 extern errcode_t ext2fs_open(const char *name, int flags, int superblock,
1249 unsigned int block_size, io_manager manager,
1250 ext2_filsys *ret_fs);
1251 extern errcode_t ext2fs_open2(const char *name, const char *io_options,
1252 int flags, int superblock,
1253 unsigned int block_size, io_manager manager,
1254 ext2_filsys *ret_fs);
1255 extern blk64_t ext2fs_descriptor_block_loc2(ext2_filsys fs,
1256 blk64_t group_block, dgrp_t i);
1257 extern blk_t ext2fs_descriptor_block_loc(ext2_filsys fs, blk_t group_block,
1259 errcode_t ext2fs_get_data_io(ext2_filsys fs, io_channel *old_io);
1260 errcode_t ext2fs_set_data_io(ext2_filsys fs, io_channel new_io);
1261 errcode_t ext2fs_rewrite_to_io(ext2_filsys fs, io_channel new_io);
1263 /* get_pathname.c */
1264 extern errcode_t ext2fs_get_pathname(ext2_filsys fs, ext2_ino_t dir, ext2_ino_t ino,
1268 errcode_t ext2fs_link(ext2_filsys fs, ext2_ino_t dir, const char *name,
1269 ext2_ino_t ino, int flags);
1270 errcode_t ext2fs_unlink(ext2_filsys fs, ext2_ino_t dir, const char *name,
1271 ext2_ino_t ino, int flags);
1274 extern errcode_t ext2fs_read_bb_inode(ext2_filsys fs,
1275 ext2_badblocks_list *bb_list);
1277 /* read_bb_file.c */
1278 extern errcode_t ext2fs_read_bb_FILE2(ext2_filsys fs, FILE *f,
1279 ext2_badblocks_list *bb_list,
1281 void (*invalid)(ext2_filsys fs,
1285 extern errcode_t ext2fs_read_bb_FILE(ext2_filsys fs, FILE *f,
1286 ext2_badblocks_list *bb_list,
1287 void (*invalid)(ext2_filsys fs,
1291 extern errcode_t ext2fs_create_resize_inode(ext2_filsys fs);
1294 extern void ext2fs_swap_ext_attr(char *to, char *from, int bufsize,
1296 extern void ext2fs_swap_ext_attr_header(struct ext2_ext_attr_header *to_header,
1297 struct ext2_ext_attr_header *from_hdr);
1298 extern void ext2fs_swap_ext_attr_entry(struct ext2_ext_attr_entry *to_entry,
1299 struct ext2_ext_attr_entry *from_entry);
1300 extern void ext2fs_swap_super(struct ext2_super_block * super);
1301 extern void ext2fs_swap_group_desc(struct ext2_group_desc *gdp);
1302 extern void ext2fs_swap_group_desc2(ext2_filsys, struct ext2_group_desc *gdp);
1303 extern void ext2fs_swap_inode_full(ext2_filsys fs, struct ext2_inode_large *t,
1304 struct ext2_inode_large *f, int hostorder,
1306 extern void ext2fs_swap_inode(ext2_filsys fs,struct ext2_inode *t,
1307 struct ext2_inode *f, int hostorder);
1310 extern int ext2fs_inode_has_valid_blocks(struct ext2_inode *inode);
1313 extern int ext2fs_parse_version_string(const char *ver_string);
1314 extern int ext2fs_get_library_version(const char **ver_string,
1315 const char **date_string);
1317 /* write_bb_file.c */
1318 extern errcode_t ext2fs_write_bb_FILE(ext2_badblocks_list bb_list,
1323 /* inline functions */
1324 extern errcode_t ext2fs_get_mem(unsigned long size, void *ptr);
1325 extern errcode_t ext2fs_get_array(unsigned long count, unsigned long size, void *ptr);
1326 extern errcode_t ext2fs_free_mem(void *ptr);
1327 extern errcode_t ext2fs_resize_mem(unsigned long old_size,
1328 unsigned long size, void *ptr);
1329 extern void ext2fs_mark_super_dirty(ext2_filsys fs);
1330 extern void ext2fs_mark_changed(ext2_filsys fs);
1331 extern int ext2fs_test_changed(ext2_filsys fs);
1332 extern void ext2fs_mark_valid(ext2_filsys fs);
1333 extern void ext2fs_unmark_valid(ext2_filsys fs);
1334 extern int ext2fs_test_valid(ext2_filsys fs);
1335 extern void ext2fs_mark_ib_dirty(ext2_filsys fs);
1336 extern void ext2fs_mark_bb_dirty(ext2_filsys fs);
1337 extern int ext2fs_test_ib_dirty(ext2_filsys fs);
1338 extern int ext2fs_test_bb_dirty(ext2_filsys fs);
1339 extern int ext2fs_group_of_blk(ext2_filsys fs, blk_t blk);
1340 extern int ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino);
1341 extern blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group);
1342 extern blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group);
1343 extern blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
1344 struct ext2_inode *inode);
1345 extern unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b);
1346 extern __u64 ext2fs_div64_ceil(__u64 a, __u64 b);
1349 * The actual inlined functions definitions themselves...
1351 * If NO_INLINE_FUNCS is defined, then we won't try to do inline
1354 #if (defined(INCLUDE_INLINE_FUNCS) || !defined(NO_INLINE_FUNCS))
1355 #ifdef INCLUDE_INLINE_FUNCS
1356 #define _INLINE_ extern
1359 #define _INLINE_ extern __inline__
1360 #else /* For Watcom C */
1361 #define _INLINE_ extern inline
1365 #ifndef EXT2_CUSTOM_MEMORY_ROUTINES
1370 _INLINE_ errcode_t ext2fs_get_mem(unsigned long size, void *ptr)
1376 return EXT2_ET_NO_MEMORY;
1377 memcpy(ptr, &pp, sizeof (pp));
1381 _INLINE_ errcode_t ext2fs_get_array(unsigned long count, unsigned long size, void *ptr)
1383 if (count && (-1UL)/count<size)
1384 return EXT2_ET_NO_MEMORY; //maybe define EXT2_ET_OVERFLOW ?
1385 return ext2fs_get_mem(count*size, ptr);
1391 _INLINE_ errcode_t ext2fs_free_mem(void *ptr)
1395 memcpy(&p, ptr, sizeof(p));
1398 memcpy(ptr, &p, sizeof(p));
1405 _INLINE_ errcode_t ext2fs_resize_mem(unsigned long EXT2FS_ATTR((unused)) old_size,
1406 unsigned long size, void *ptr)
1410 /* Use "memcpy" for pointer assignments here to avoid problems
1411 * with C99 strict type aliasing rules. */
1412 memcpy(&p, ptr, sizeof(p));
1413 p = realloc(p, size);
1415 return EXT2_ET_NO_MEMORY;
1416 memcpy(ptr, &p, sizeof(p));
1419 #endif /* Custom memory routines */
1422 * Mark a filesystem superblock as dirty
1424 _INLINE_ void ext2fs_mark_super_dirty(ext2_filsys fs)
1426 fs->flags |= EXT2_FLAG_DIRTY | EXT2_FLAG_CHANGED;
1430 * Mark a filesystem as changed
1432 _INLINE_ void ext2fs_mark_changed(ext2_filsys fs)
1434 fs->flags |= EXT2_FLAG_CHANGED;
1438 * Check to see if a filesystem has changed
1440 _INLINE_ int ext2fs_test_changed(ext2_filsys fs)
1442 return (fs->flags & EXT2_FLAG_CHANGED);
1446 * Mark a filesystem as valid
1448 _INLINE_ void ext2fs_mark_valid(ext2_filsys fs)
1450 fs->flags |= EXT2_FLAG_VALID;
1454 * Mark a filesystem as NOT valid
1456 _INLINE_ void ext2fs_unmark_valid(ext2_filsys fs)
1458 fs->flags &= ~EXT2_FLAG_VALID;
1462 * Check to see if a filesystem is valid
1464 _INLINE_ int ext2fs_test_valid(ext2_filsys fs)
1466 return (fs->flags & EXT2_FLAG_VALID);
1470 * Mark the inode bitmap as dirty
1472 _INLINE_ void ext2fs_mark_ib_dirty(ext2_filsys fs)
1474 fs->flags |= EXT2_FLAG_IB_DIRTY | EXT2_FLAG_CHANGED;
1478 * Mark the block bitmap as dirty
1480 _INLINE_ void ext2fs_mark_bb_dirty(ext2_filsys fs)
1482 fs->flags |= EXT2_FLAG_BB_DIRTY | EXT2_FLAG_CHANGED;
1486 * Check to see if a filesystem's inode bitmap is dirty
1488 _INLINE_ int ext2fs_test_ib_dirty(ext2_filsys fs)
1490 return (fs->flags & EXT2_FLAG_IB_DIRTY);
1494 * Check to see if a filesystem's block bitmap is dirty
1496 _INLINE_ int ext2fs_test_bb_dirty(ext2_filsys fs)
1498 return (fs->flags & EXT2_FLAG_BB_DIRTY);
1502 * Return the group # of a block
1504 _INLINE_ int ext2fs_group_of_blk(ext2_filsys fs, blk_t blk)
1506 return ext2fs_group_of_blk2(fs, blk);
1509 * Return the group # of an inode number
1511 _INLINE_ int ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino)
1513 return (ino - 1) / fs->super->s_inodes_per_group;
1517 * Return the first block (inclusive) in a group
1519 _INLINE_ blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group)
1521 return ext2fs_group_first_block2(fs, group);
1525 * Return the last block (inclusive) in a group
1527 _INLINE_ blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group)
1529 return ext2fs_group_last_block2(fs, group);
1532 _INLINE_ blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
1533 struct ext2_inode *inode)
1535 return ext2fs_inode_data_blocks2(fs, inode);
1539 * This is an efficient, overflow safe way of calculating ceil((1.0 * a) / b)
1541 _INLINE_ unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b)
1545 return ((a - 1) / b) + 1;
1548 _INLINE_ __u64 ext2fs_div64_ceil(__u64 a, __u64 b)
1552 return ((a - 1) / b) + 1;
1562 #endif /* _EXT2FS_EXT2FS_H */