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>
57 #if EXT2_FLAT_INCLUDES
60 #include "ext3_extents.h"
62 #include <ext2fs/ext2_types.h>
63 #include <ext2fs/ext2_fs.h>
64 #include <ext2fs/ext3_extents.h>
65 #endif /* EXT2_FLAT_INCLUDES */
67 typedef __u32 ext2_ino_t;
69 typedef __u64 blk64_t;
71 typedef __u32 ext2_off_t;
72 typedef __u64 ext2_off64_t;
73 typedef __s64 e2_blkcnt_t;
74 typedef __u32 ext2_dirhash_t;
76 #if EXT2_FLAT_INCLUDES
80 #include "ext2_ext_attr.h"
82 #include <et/com_err.h>
83 #include <ext2fs/ext2_io.h>
84 #include <ext2fs/ext2_err.h>
85 #include <ext2fs/ext2_ext_attr.h>
89 * Portability help for Microsoft Visual C++
92 #define EXT2_QSORT_TYPE int __cdecl
94 #define EXT2_QSORT_TYPE int
97 typedef struct struct_ext2_filsys *ext2_filsys;
99 #define EXT2FS_MARK_ERROR 0
100 #define EXT2FS_UNMARK_ERROR 1
101 #define EXT2FS_TEST_ERROR 2
103 typedef struct ext2fs_struct_generic_bitmap *ext2fs_generic_bitmap;
104 typedef struct ext2fs_struct_generic_bitmap *ext2fs_inode_bitmap;
105 typedef struct ext2fs_struct_generic_bitmap *ext2fs_block_bitmap;
107 #define EXT2_FIRST_INODE(s) EXT2_FIRST_INO(s)
111 * Badblocks list definitions
114 typedef struct ext2_struct_u32_list *ext2_badblocks_list;
115 typedef struct ext2_struct_u32_iterate *ext2_badblocks_iterate;
117 typedef struct ext2_struct_u32_list *ext2_u32_list;
118 typedef struct ext2_struct_u32_iterate *ext2_u32_iterate;
121 typedef struct ext2_struct_u32_list *badblocks_list;
122 typedef struct ext2_struct_u32_iterate *badblocks_iterate;
124 #define BADBLOCKS_FLAG_DIRTY 1
127 * ext2_dblist structure and abstractions (see dblist.c)
129 struct ext2_db_entry2 {
132 e2_blkcnt_t blockcnt;
135 /* Ye Olde 32-bit version */
136 struct ext2_db_entry {
142 typedef struct ext2_struct_dblist *ext2_dblist;
144 #define DBLIST_ABORT 1
147 * ext2_fileio definitions
150 #define EXT2_FILE_WRITE 0x0001
151 #define EXT2_FILE_CREATE 0x0002
153 #define EXT2_FILE_MASK 0x00FF
155 #define EXT2_FILE_BUF_DIRTY 0x4000
156 #define EXT2_FILE_BUF_VALID 0x2000
158 typedef struct ext2_file *ext2_file_t;
160 #define EXT2_SEEK_SET 0
161 #define EXT2_SEEK_CUR 1
162 #define EXT2_SEEK_END 2
165 * Flags for the ext2_filsys structure and for ext2fs_open()
167 #define EXT2_FLAG_RW 0x01
168 #define EXT2_FLAG_CHANGED 0x02
169 #define EXT2_FLAG_DIRTY 0x04
170 #define EXT2_FLAG_VALID 0x08
171 #define EXT2_FLAG_IB_DIRTY 0x10
172 #define EXT2_FLAG_BB_DIRTY 0x20
173 #define EXT2_FLAG_SWAP_BYTES 0x40
174 #define EXT2_FLAG_SWAP_BYTES_READ 0x80
175 #define EXT2_FLAG_SWAP_BYTES_WRITE 0x100
176 #define EXT2_FLAG_MASTER_SB_ONLY 0x200
177 #define EXT2_FLAG_FORCE 0x400
178 #define EXT2_FLAG_SUPER_ONLY 0x800
179 #define EXT2_FLAG_JOURNAL_DEV_OK 0x1000
180 #define EXT2_FLAG_IMAGE_FILE 0x2000
181 #define EXT2_FLAG_EXCLUSIVE 0x4000
182 #define EXT2_FLAG_SOFTSUPP_FEATURES 0x8000
183 #define EXT2_FLAG_NOFREE_ON_ERROR 0x10000
184 #define EXT2_FLAG_64BITS 0x20000
185 #define EXT2_FLAG_PRINT_PROGRESS 0x40000
186 #define EXT2_FLAG_DIRECT_IO 0x80000
189 * Special flag in the ext2 inode i_flag field that means that this is
190 * a new inode. (So that ext2_write_inode() can clear extra fields.)
192 #define EXT2_NEW_INODE_FL 0x80000000
195 * Flags for mkjournal
197 * EXT2_MKJOURNAL_V1_SUPER Make a (deprecated) V1 journal superblock
199 #define EXT2_MKJOURNAL_V1_SUPER 0x0000001
201 struct opaque_ext2_group_desc;
203 struct struct_ext2_filsys {
208 struct ext2_super_block * super;
209 unsigned int blocksize;
210 int cluster_ratio_bits;
211 dgrp_t group_desc_count;
212 unsigned long desc_blocks;
213 struct opaque_ext2_group_desc * group_desc;
214 int inode_blocks_per_group;
215 ext2fs_inode_bitmap inode_map;
216 ext2fs_block_bitmap block_map;
217 /* XXX FIXME-64: not 64-bit safe, but not used? */
218 errcode_t (*get_blocks)(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
219 errcode_t (*check_directory)(ext2_filsys fs, ext2_ino_t ino);
220 errcode_t (*write_bitmaps)(ext2_filsys fs);
221 errcode_t (*read_inode)(ext2_filsys fs, ext2_ino_t ino,
222 struct ext2_inode *inode);
223 errcode_t (*write_inode)(ext2_filsys fs, ext2_ino_t ino,
224 struct ext2_inode *inode);
225 ext2_badblocks_list badblocks;
227 __u32 stride; /* for mke2fs */
228 struct ext2_super_block * orig_super;
229 struct ext2_image_hdr * image_header;
233 * Reserved for future expansion
238 * Reserved for the use of the calling application.
245 struct ext2_inode_cache *icache;
249 * More callback functions
251 errcode_t (*get_alloc_block)(ext2_filsys fs, blk64_t goal,
253 void (*block_alloc_stats)(ext2_filsys fs, blk64_t blk, int inuse);
256 #if EXT2_FLAT_INCLUDES
257 #include "e2_bitops.h"
259 #include <ext2fs/bitops.h>
263 * Return flags for the block iterator functions
265 #define BLOCK_CHANGED 1
266 #define BLOCK_ABORT 2
267 #define BLOCK_ERROR 4
270 * Block interate flags
272 * BLOCK_FLAG_APPEND, or BLOCK_FLAG_HOLE, indicates that the interator
273 * function should be called on blocks where the block number is zero.
274 * This is used by ext2fs_expand_dir() to be able to add a new block
275 * to an inode. It can also be used for programs that want to be able
276 * to deal with files that contain "holes".
278 * BLOCK_FLAG_DEPTH_TRAVERSE indicates that the iterator function for
279 * the indirect, doubly indirect, etc. blocks should be called after
280 * all of the blocks containined in the indirect blocks are processed.
281 * This is useful if you are going to be deallocating blocks from an
284 * BLOCK_FLAG_DATA_ONLY indicates that the iterator function should be
285 * called for data blocks only.
287 * BLOCK_FLAG_READ_ONLY is a promise by the caller that it will not
288 * modify returned block number.
290 * BLOCK_FLAG_NO_LARGE is for internal use only. It informs
291 * ext2fs_block_iterate2 that large files won't be accepted.
293 #define BLOCK_FLAG_APPEND 1
294 #define BLOCK_FLAG_HOLE 1
295 #define BLOCK_FLAG_DEPTH_TRAVERSE 2
296 #define BLOCK_FLAG_DATA_ONLY 4
297 #define BLOCK_FLAG_READ_ONLY 8
299 #define BLOCK_FLAG_NO_LARGE 0x1000
302 * Magic "block count" return values for the block iterator function.
304 #define BLOCK_COUNT_IND (-1)
305 #define BLOCK_COUNT_DIND (-2)
306 #define BLOCK_COUNT_TIND (-3)
307 #define BLOCK_COUNT_TRANSLATOR (-4)
311 * Flags for ext2fs_move_blocks
313 #define EXT2_BMOVE_GET_DBLIST 0x0001
314 #define EXT2_BMOVE_DEBUG 0x0002
318 * Generic (non-filesystem layout specific) extents structure
321 #define EXT2_EXTENT_FLAGS_LEAF 0x0001
322 #define EXT2_EXTENT_FLAGS_UNINIT 0x0002
323 #define EXT2_EXTENT_FLAGS_SECOND_VISIT 0x0004
325 struct ext2fs_extent {
326 blk64_t e_pblk; /* first physical block */
327 blk64_t e_lblk; /* first logical block extent covers */
328 __u32 e_len; /* number of blocks covered by extent */
329 __u32 e_flags; /* extent flags */
332 typedef struct ext2_extent_handle *ext2_extent_handle_t;
333 typedef struct ext2_extent_path *ext2_extent_path_t;
336 * Flags used by ext2fs_extent_get()
338 #define EXT2_EXTENT_CURRENT 0x0000
339 #define EXT2_EXTENT_MOVE_MASK 0x000F
340 #define EXT2_EXTENT_ROOT 0x0001
341 #define EXT2_EXTENT_LAST_LEAF 0x0002
342 #define EXT2_EXTENT_FIRST_SIB 0x0003
343 #define EXT2_EXTENT_LAST_SIB 0x0004
344 #define EXT2_EXTENT_NEXT_SIB 0x0005
345 #define EXT2_EXTENT_PREV_SIB 0x0006
346 #define EXT2_EXTENT_NEXT_LEAF 0x0007
347 #define EXT2_EXTENT_PREV_LEAF 0x0008
348 #define EXT2_EXTENT_NEXT 0x0009
349 #define EXT2_EXTENT_PREV 0x000A
350 #define EXT2_EXTENT_UP 0x000B
351 #define EXT2_EXTENT_DOWN 0x000C
352 #define EXT2_EXTENT_DOWN_AND_LAST 0x000D
355 * Flags used by ext2fs_extent_insert()
357 #define EXT2_EXTENT_INSERT_AFTER 0x0001 /* insert after handle loc'n */
358 #define EXT2_EXTENT_INSERT_NOSPLIT 0x0002 /* insert may not cause split */
361 * Flags used by ext2fs_extent_delete()
363 #define EXT2_EXTENT_DELETE_KEEP_EMPTY 0x001 /* keep node if last extnt gone */
366 * Flags used by ext2fs_extent_set_bmap()
368 #define EXT2_EXTENT_SET_BMAP_UNINIT 0x0001
371 * Data structure returned by ext2fs_extent_get_info()
373 struct ext2_extent_info {
383 __u32 max_uninit_len;
387 * Flags for directory block reading and writing functions
389 #define EXT2_DIRBLOCK_V2_STRUCT 0x0001
392 * Return flags for the directory iterator functions
394 #define DIRENT_CHANGED 1
395 #define DIRENT_ABORT 2
396 #define DIRENT_ERROR 3
399 * Directory iterator flags
402 #define DIRENT_FLAG_INCLUDE_EMPTY 1
403 #define DIRENT_FLAG_INCLUDE_REMOVED 2
405 #define DIRENT_DOT_FILE 1
406 #define DIRENT_DOT_DOT_FILE 2
407 #define DIRENT_OTHER_FILE 3
408 #define DIRENT_DELETED_FILE 4
411 * Inode scan definitions
413 typedef struct ext2_struct_inode_scan *ext2_inode_scan;
418 #define EXT2_SF_CHK_BADBLOCKS 0x0001
419 #define EXT2_SF_BAD_INODE_BLK 0x0002
420 #define EXT2_SF_BAD_EXTRA_BYTES 0x0004
421 #define EXT2_SF_SKIP_MISSING_ITABLE 0x0008
422 #define EXT2_SF_DO_LAZY 0x0010
425 * ext2fs_check_if_mounted flags
427 #define EXT2_MF_MOUNTED 1
428 #define EXT2_MF_ISROOT 2
429 #define EXT2_MF_READONLY 4
430 #define EXT2_MF_SWAP 8
431 #define EXT2_MF_BUSY 16
434 * Ext2/linux mode flags. We define them here so that we don't need
435 * to depend on the OS's sys/stat.h, since we may be compiling on a
438 #define LINUX_S_IFMT 00170000
439 #define LINUX_S_IFSOCK 0140000
440 #define LINUX_S_IFLNK 0120000
441 #define LINUX_S_IFREG 0100000
442 #define LINUX_S_IFBLK 0060000
443 #define LINUX_S_IFDIR 0040000
444 #define LINUX_S_IFCHR 0020000
445 #define LINUX_S_IFIFO 0010000
446 #define LINUX_S_ISUID 0004000
447 #define LINUX_S_ISGID 0002000
448 #define LINUX_S_ISVTX 0001000
450 #define LINUX_S_IRWXU 00700
451 #define LINUX_S_IRUSR 00400
452 #define LINUX_S_IWUSR 00200
453 #define LINUX_S_IXUSR 00100
455 #define LINUX_S_IRWXG 00070
456 #define LINUX_S_IRGRP 00040
457 #define LINUX_S_IWGRP 00020
458 #define LINUX_S_IXGRP 00010
460 #define LINUX_S_IRWXO 00007
461 #define LINUX_S_IROTH 00004
462 #define LINUX_S_IWOTH 00002
463 #define LINUX_S_IXOTH 00001
465 #define LINUX_S_ISLNK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFLNK)
466 #define LINUX_S_ISREG(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFREG)
467 #define LINUX_S_ISDIR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFDIR)
468 #define LINUX_S_ISCHR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFCHR)
469 #define LINUX_S_ISBLK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFBLK)
470 #define LINUX_S_ISFIFO(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFIFO)
471 #define LINUX_S_ISSOCK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFSOCK)
474 * ext2 size of an inode
476 #define EXT2_I_SIZE(i) ((i)->i_size | ((__u64) (i)->i_size_high << 32))
479 * ext2_icount_t abstraction
481 #define EXT2_ICOUNT_OPT_INCREMENT 0x01
483 typedef struct ext2_icount *ext2_icount_t;
486 * Flags for ext2fs_bmap
488 #define BMAP_ALLOC 0x0001
489 #define BMAP_SET 0x0002
492 * Returned flags from ext2fs_bmap
494 #define BMAP_RET_UNINIT 0x0001
497 * Flags for imager.c functions
499 #define IMAGER_FLAG_INODEMAP 1
500 #define IMAGER_FLAG_SPARSEWRITE 2
503 * For checking structure magic numbers...
506 #define EXT2_CHECK_MAGIC(struct, code) \
507 if ((struct)->magic != (code)) return (code)
511 * For ext2 compression support
513 #define EXT2FS_COMPRESSED_BLKADDR ((blk_t) -1)
514 #define HOLE_BLKADDR(_b) ((_b) == 0 || (_b) == EXT2FS_COMPRESSED_BLKADDR)
517 * Features supported by this version of the library
519 #define EXT2_LIB_FEATURE_COMPAT_SUPP (EXT2_FEATURE_COMPAT_DIR_PREALLOC|\
520 EXT2_FEATURE_COMPAT_IMAGIC_INODES|\
521 EXT3_FEATURE_COMPAT_HAS_JOURNAL|\
522 EXT2_FEATURE_COMPAT_RESIZE_INODE|\
523 EXT2_FEATURE_COMPAT_DIR_INDEX|\
524 EXT2_FEATURE_COMPAT_EXT_ATTR)
526 /* This #ifdef is temporary until compression is fully supported */
527 #ifdef ENABLE_COMPRESSION
528 #ifndef I_KNOW_THAT_COMPRESSION_IS_EXPERIMENTAL
529 /* If the below warning bugs you, then have
530 `CPPFLAGS=-DI_KNOW_THAT_COMPRESSION_IS_EXPERIMENTAL' in your
531 environment at configure time. */
532 #warning "Compression support is experimental"
534 #define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\
535 EXT2_FEATURE_INCOMPAT_COMPRESSION|\
536 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\
537 EXT2_FEATURE_INCOMPAT_META_BG|\
538 EXT3_FEATURE_INCOMPAT_RECOVER|\
539 EXT3_FEATURE_INCOMPAT_EXTENTS|\
540 EXT4_FEATURE_INCOMPAT_FLEX_BG|\
541 EXT4_FEATURE_INCOMPAT_64BIT)
543 #define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\
544 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\
545 EXT2_FEATURE_INCOMPAT_META_BG|\
546 EXT3_FEATURE_INCOMPAT_RECOVER|\
547 EXT3_FEATURE_INCOMPAT_EXTENTS|\
548 EXT4_FEATURE_INCOMPAT_FLEX_BG|\
549 EXT4_FEATURE_INCOMPAT_64BIT)
551 #define EXT2_LIB_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|\
552 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|\
553 EXT2_FEATURE_RO_COMPAT_LARGE_FILE|\
554 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|\
555 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|\
556 EXT4_FEATURE_RO_COMPAT_GDT_CSUM)
559 * These features are only allowed if EXT2_FLAG_SOFTSUPP_FEATURES is passed
562 #define EXT2_LIB_SOFTSUPP_INCOMPAT (0)
563 #define EXT2_LIB_SOFTSUPP_RO_COMPAT (EXT4_FEATURE_RO_COMPAT_BIGALLOC)
566 /* Translate a block number to a cluster number */
567 #define EXT2FS_CLUSTER_RATIO(fs) (1 << (fs)->cluster_ratio_bits)
568 #define EXT2FS_CLUSTER_MASK(fs) (EXT2FS_CLUSTER_RATIO(fs) - 1)
569 #define EXT2FS_B2C(fs, blk) ((blk) >> (fs)->cluster_ratio_bits)
570 /* Translate a cluster number to a block number */
571 #define EXT2FS_C2B(fs, cluster) ((cluster) << (fs)->cluster_ratio_bits)
572 /* Translate # of blks to # of clusters */
573 #define EXT2FS_NUM_B2C(fs, blks) (((blks) + EXT2FS_CLUSTER_MASK(fs)) >> \
574 (fs)->cluster_ratio_bits)
577 * function prototypes
581 extern errcode_t ext2fs_new_inode(ext2_filsys fs, ext2_ino_t dir, int mode,
582 ext2fs_inode_bitmap map, ext2_ino_t *ret);
583 extern errcode_t ext2fs_new_block(ext2_filsys fs, blk_t goal,
584 ext2fs_block_bitmap map, blk_t *ret);
585 extern errcode_t ext2fs_new_block2(ext2_filsys fs, blk64_t goal,
586 ext2fs_block_bitmap map, blk64_t *ret);
587 extern errcode_t ext2fs_get_free_blocks(ext2_filsys fs, blk_t start,
588 blk_t finish, int num,
589 ext2fs_block_bitmap map,
591 extern errcode_t ext2fs_get_free_blocks2(ext2_filsys fs, blk64_t start,
592 blk64_t finish, int num,
593 ext2fs_block_bitmap map,
595 extern errcode_t ext2fs_alloc_block(ext2_filsys fs, blk_t goal,
596 char *block_buf, blk_t *ret);
597 extern errcode_t ext2fs_alloc_block2(ext2_filsys fs, blk64_t goal,
598 char *block_buf, blk64_t *ret);
599 extern void ext2fs_set_alloc_block_callback(ext2_filsys fs,
600 errcode_t (*func)(ext2_filsys fs,
603 errcode_t (**old)(ext2_filsys fs,
608 extern int ext2fs_reserve_super_and_bgd(ext2_filsys fs,
610 ext2fs_block_bitmap bmap);
611 extern void ext2fs_set_block_alloc_stats_callback(ext2_filsys fs,
612 void (*func)(ext2_filsys fs,
615 void (**old)(ext2_filsys fs,
620 void ext2fs_inode_alloc_stats(ext2_filsys fs, ext2_ino_t ino, int inuse);
621 void ext2fs_inode_alloc_stats2(ext2_filsys fs, ext2_ino_t ino,
622 int inuse, int isdir);
623 void ext2fs_block_alloc_stats(ext2_filsys fs, blk_t blk, int inuse);
624 void ext2fs_block_alloc_stats2(ext2_filsys fs, blk64_t blk, int inuse);
627 extern errcode_t ext2fs_allocate_tables(ext2_filsys fs);
628 extern errcode_t ext2fs_allocate_group_table(ext2_filsys fs, dgrp_t group,
629 ext2fs_block_bitmap bmap);
632 extern errcode_t ext2fs_u32_list_create(ext2_u32_list *ret, int size);
633 extern errcode_t ext2fs_u32_list_add(ext2_u32_list bb, __u32 blk);
634 extern int ext2fs_u32_list_find(ext2_u32_list bb, __u32 blk);
635 extern int ext2fs_u32_list_test(ext2_u32_list bb, blk_t blk);
636 extern errcode_t ext2fs_u32_list_iterate_begin(ext2_u32_list bb,
637 ext2_u32_iterate *ret);
638 extern int ext2fs_u32_list_iterate(ext2_u32_iterate iter, blk_t *blk);
639 extern void ext2fs_u32_list_iterate_end(ext2_u32_iterate iter);
640 extern errcode_t ext2fs_u32_copy(ext2_u32_list src, ext2_u32_list *dest);
641 extern int ext2fs_u32_list_equal(ext2_u32_list bb1, ext2_u32_list bb2);
643 extern errcode_t ext2fs_badblocks_list_create(ext2_badblocks_list *ret,
645 extern errcode_t ext2fs_badblocks_list_add(ext2_badblocks_list bb,
647 extern int ext2fs_badblocks_list_test(ext2_badblocks_list bb,
649 extern int ext2fs_u32_list_del(ext2_u32_list bb, __u32 blk);
650 extern void ext2fs_badblocks_list_del(ext2_u32_list bb, __u32 blk);
652 ext2fs_badblocks_list_iterate_begin(ext2_badblocks_list bb,
653 ext2_badblocks_iterate *ret);
654 extern int ext2fs_badblocks_list_iterate(ext2_badblocks_iterate iter,
656 extern void ext2fs_badblocks_list_iterate_end(ext2_badblocks_iterate iter);
657 extern errcode_t ext2fs_badblocks_copy(ext2_badblocks_list src,
658 ext2_badblocks_list *dest);
659 extern int ext2fs_badblocks_equal(ext2_badblocks_list bb1,
660 ext2_badblocks_list bb2);
661 extern int ext2fs_u32_list_count(ext2_u32_list bb);
664 extern errcode_t badblocks_list_create(badblocks_list *ret, int size);
665 extern errcode_t badblocks_list_add(badblocks_list bb, blk_t blk);
666 extern int badblocks_list_test(badblocks_list bb, blk_t blk);
667 extern errcode_t badblocks_list_iterate_begin(badblocks_list bb,
668 badblocks_iterate *ret);
669 extern int badblocks_list_iterate(badblocks_iterate iter, blk_t *blk);
670 extern void badblocks_list_iterate_end(badblocks_iterate iter);
671 extern void badblocks_list_free(badblocks_list bb);
674 extern errcode_t ext2fs_update_bb_inode(ext2_filsys fs,
675 ext2_badblocks_list bb_list);
678 extern void ext2fs_free_block_bitmap(ext2fs_block_bitmap bitmap);
679 extern void ext2fs_free_inode_bitmap(ext2fs_inode_bitmap bitmap);
680 extern errcode_t ext2fs_copy_bitmap(ext2fs_generic_bitmap src,
681 ext2fs_generic_bitmap *dest);
682 extern errcode_t ext2fs_write_inode_bitmap(ext2_filsys fs);
683 extern errcode_t ext2fs_write_block_bitmap (ext2_filsys fs);
684 extern errcode_t ext2fs_read_inode_bitmap (ext2_filsys fs);
685 extern errcode_t ext2fs_read_block_bitmap(ext2_filsys fs);
686 extern errcode_t ext2fs_allocate_block_bitmap(ext2_filsys fs,
688 ext2fs_block_bitmap *ret);
689 extern errcode_t ext2fs_allocate_subcluster_bitmap(ext2_filsys fs,
691 ext2fs_block_bitmap *ret);
692 extern int ext2fs_get_bitmap_granularity(ext2fs_block_bitmap bitmap);
693 extern errcode_t ext2fs_allocate_inode_bitmap(ext2_filsys fs,
695 ext2fs_inode_bitmap *ret);
696 extern errcode_t ext2fs_fudge_inode_bitmap_end(ext2fs_inode_bitmap bitmap,
697 ext2_ino_t end, ext2_ino_t *oend);
698 extern errcode_t ext2fs_fudge_block_bitmap_end(ext2fs_block_bitmap bitmap,
699 blk_t end, blk_t *oend);
700 extern errcode_t ext2fs_fudge_block_bitmap_end2(ext2fs_block_bitmap bitmap,
701 blk64_t end, blk64_t *oend);
702 extern void ext2fs_clear_inode_bitmap(ext2fs_inode_bitmap bitmap);
703 extern void ext2fs_clear_block_bitmap(ext2fs_block_bitmap bitmap);
704 extern errcode_t ext2fs_read_bitmaps(ext2_filsys fs);
705 extern errcode_t ext2fs_write_bitmaps(ext2_filsys fs);
706 extern errcode_t ext2fs_resize_inode_bitmap(__u32 new_end, __u32 new_real_end,
707 ext2fs_inode_bitmap bmap);
708 extern errcode_t ext2fs_resize_inode_bitmap2(__u64 new_end,
710 ext2fs_inode_bitmap bmap);
711 extern errcode_t ext2fs_resize_block_bitmap(__u32 new_end, __u32 new_real_end,
712 ext2fs_block_bitmap bmap);
713 extern errcode_t ext2fs_resize_block_bitmap2(__u64 new_end,
715 ext2fs_block_bitmap bmap);
716 extern errcode_t ext2fs_compare_block_bitmap(ext2fs_block_bitmap bm1,
717 ext2fs_block_bitmap bm2);
718 extern errcode_t ext2fs_compare_inode_bitmap(ext2fs_inode_bitmap bm1,
719 ext2fs_inode_bitmap bm2);
720 extern errcode_t ext2fs_set_inode_bitmap_range(ext2fs_inode_bitmap bmap,
721 ext2_ino_t start, unsigned int num,
723 extern errcode_t ext2fs_set_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
724 __u64 start, size_t num,
726 extern errcode_t ext2fs_get_inode_bitmap_range(ext2fs_inode_bitmap bmap,
727 ext2_ino_t start, unsigned int num,
729 extern errcode_t ext2fs_get_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
730 __u64 start, size_t num,
732 extern errcode_t ext2fs_set_block_bitmap_range(ext2fs_block_bitmap bmap,
733 blk_t start, unsigned int num,
735 extern errcode_t ext2fs_set_block_bitmap_range2(ext2fs_block_bitmap bmap,
736 blk64_t start, size_t num,
738 extern errcode_t ext2fs_get_block_bitmap_range(ext2fs_block_bitmap bmap,
739 blk_t start, unsigned int num,
741 extern errcode_t ext2fs_get_block_bitmap_range2(ext2fs_block_bitmap bmap,
742 blk64_t start, size_t num,
746 extern dgrp_t ext2fs_group_of_blk2(ext2_filsys fs, blk64_t);
747 extern blk64_t ext2fs_group_first_block2(ext2_filsys fs, dgrp_t group);
748 extern blk64_t ext2fs_group_last_block2(ext2_filsys fs, dgrp_t group);
749 extern blk64_t ext2fs_inode_data_blocks2(ext2_filsys fs,
750 struct ext2_inode *inode);
751 extern blk64_t ext2fs_inode_i_blocks(ext2_filsys fs,
752 struct ext2_inode *inode);
753 extern blk64_t ext2fs_blocks_count(struct ext2_super_block *super);
754 extern void ext2fs_blocks_count_set(struct ext2_super_block *super,
756 extern void ext2fs_blocks_count_add(struct ext2_super_block *super,
758 extern blk64_t ext2fs_r_blocks_count(struct ext2_super_block *super);
759 extern void ext2fs_r_blocks_count_set(struct ext2_super_block *super,
761 extern void ext2fs_r_blocks_count_add(struct ext2_super_block *super,
763 extern blk64_t ext2fs_free_blocks_count(struct ext2_super_block *super);
764 extern void ext2fs_free_blocks_count_set(struct ext2_super_block *super,
766 extern void ext2fs_free_blocks_count_add(struct ext2_super_block *super,
768 /* Block group descriptor accessor functions */
769 extern struct ext2_group_desc *ext2fs_group_desc(ext2_filsys fs,
770 struct opaque_ext2_group_desc *gdp,
772 extern blk64_t ext2fs_block_bitmap_loc(ext2_filsys fs, dgrp_t group);
773 extern void ext2fs_block_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
775 extern blk64_t ext2fs_inode_bitmap_loc(ext2_filsys fs, dgrp_t group);
776 extern void ext2fs_inode_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
778 extern blk64_t ext2fs_inode_table_loc(ext2_filsys fs, dgrp_t group);
779 extern void ext2fs_inode_table_loc_set(ext2_filsys fs, dgrp_t group,
781 extern __u32 ext2fs_bg_free_blocks_count(ext2_filsys fs, dgrp_t group);
782 extern void ext2fs_bg_free_blocks_count_set(ext2_filsys fs, dgrp_t group,
784 extern __u32 ext2fs_bg_free_inodes_count(ext2_filsys fs, dgrp_t group);
785 extern void ext2fs_bg_free_inodes_count_set(ext2_filsys fs, dgrp_t group,
787 extern __u32 ext2fs_bg_used_dirs_count(ext2_filsys fs, dgrp_t group);
788 extern void ext2fs_bg_used_dirs_count_set(ext2_filsys fs, dgrp_t group,
790 extern __u32 ext2fs_bg_itable_unused(ext2_filsys fs, dgrp_t group);
791 extern void ext2fs_bg_itable_unused_set(ext2_filsys fs, dgrp_t group,
793 extern __u16 ext2fs_bg_flags(ext2_filsys fs, dgrp_t group);
794 extern void ext2fs_bg_flags_zap(ext2_filsys fs, dgrp_t group);
795 extern int ext2fs_bg_flags_test(ext2_filsys fs, dgrp_t group, __u16 bg_flag);
796 extern void ext2fs_bg_flags_set(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
797 extern void ext2fs_bg_flags_clear(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
798 extern __u16 ext2fs_bg_checksum(ext2_filsys fs, dgrp_t group);
799 extern void ext2fs_bg_checksum_set(ext2_filsys fs, dgrp_t group, __u16 checksum);
800 extern blk64_t ext2fs_file_acl_block(const struct ext2_inode *inode);
801 extern void ext2fs_file_acl_block_set(struct ext2_inode *inode, blk64_t blk);
804 extern errcode_t ext2fs_block_iterate(ext2_filsys fs,
808 int (*func)(ext2_filsys fs,
813 errcode_t ext2fs_block_iterate2(ext2_filsys fs,
817 int (*func)(ext2_filsys fs,
819 e2_blkcnt_t blockcnt,
824 errcode_t ext2fs_block_iterate3(ext2_filsys fs,
828 int (*func)(ext2_filsys fs,
830 e2_blkcnt_t blockcnt,
837 extern errcode_t ext2fs_bmap(ext2_filsys fs, ext2_ino_t ino,
838 struct ext2_inode *inode,
839 char *block_buf, int bmap_flags,
840 blk_t block, blk_t *phys_blk);
841 extern errcode_t ext2fs_bmap2(ext2_filsys fs, ext2_ino_t ino,
842 struct ext2_inode *inode,
843 char *block_buf, int bmap_flags, blk64_t block,
844 int *ret_flags, blk64_t *phys_blk);
848 extern errcode_t ext2fs_move_blocks(ext2_filsys fs,
849 ext2fs_block_bitmap reserve,
850 ext2fs_block_bitmap alloc_map,
855 extern errcode_t ext2fs_check_desc(ext2_filsys fs);
858 extern errcode_t ext2fs_close(ext2_filsys fs);
859 extern errcode_t ext2fs_flush(ext2_filsys fs);
860 extern int ext2fs_bg_has_super(ext2_filsys fs, int group_block);
861 extern errcode_t ext2fs_super_and_bgd_loc2(ext2_filsys fs,
863 blk64_t *ret_super_blk,
864 blk64_t *ret_old_desc_blk,
865 blk64_t *ret_new_desc_blk,
866 blk_t *ret_used_blks);
867 extern int ext2fs_super_and_bgd_loc(ext2_filsys fs,
869 blk_t *ret_super_blk,
870 blk_t *ret_old_desc_blk,
871 blk_t *ret_new_desc_blk,
873 extern void ext2fs_update_dynamic_rev(ext2_filsys fs);
876 extern void ext2fs_group_desc_csum_set(ext2_filsys fs, dgrp_t group);
877 extern int ext2fs_group_desc_csum_verify(ext2_filsys fs, dgrp_t group);
878 extern errcode_t ext2fs_set_gdt_csum(ext2_filsys fs);
882 extern errcode_t ext2fs_get_num_dirs(ext2_filsys fs, ext2_ino_t *ret_num_dirs);
883 extern errcode_t ext2fs_init_dblist(ext2_filsys fs, ext2_dblist *ret_dblist);
884 extern errcode_t ext2fs_add_dir_block(ext2_dblist dblist, ext2_ino_t ino,
885 blk_t blk, int blockcnt);
886 extern errcode_t ext2fs_add_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
887 blk64_t blk, e2_blkcnt_t blockcnt);
888 extern void ext2fs_dblist_sort(ext2_dblist dblist,
889 EXT2_QSORT_TYPE (*sortfunc)(const void *,
891 extern void ext2fs_dblist_sort2(ext2_dblist dblist,
892 EXT2_QSORT_TYPE (*sortfunc)(const void *,
894 extern errcode_t ext2fs_dblist_iterate(ext2_dblist dblist,
895 int (*func)(ext2_filsys fs, struct ext2_db_entry *db_info,
898 extern errcode_t ext2fs_dblist_iterate2(ext2_dblist dblist,
899 int (*func)(ext2_filsys fs, struct ext2_db_entry2 *db_info,
902 extern errcode_t ext2fs_set_dir_block(ext2_dblist dblist, ext2_ino_t ino,
903 blk_t blk, int blockcnt);
904 extern errcode_t ext2fs_set_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
905 blk64_t blk, e2_blkcnt_t blockcnt);
906 extern errcode_t ext2fs_copy_dblist(ext2_dblist src,
908 extern int ext2fs_dblist_count(ext2_dblist dblist);
909 extern blk64_t ext2fs_dblist_count2(ext2_dblist dblist);
910 extern errcode_t ext2fs_dblist_get_last(ext2_dblist dblist,
911 struct ext2_db_entry **entry);
912 extern errcode_t ext2fs_dblist_get_last2(ext2_dblist dblist,
913 struct ext2_db_entry2 **entry);
914 extern errcode_t ext2fs_dblist_drop_last(ext2_dblist dblist);
918 ext2fs_dblist_dir_iterate(ext2_dblist dblist,
921 int (*func)(ext2_ino_t dir,
923 struct ext2_dir_entry *dirent,
931 extern errcode_t ext2fs_read_dir_block(ext2_filsys fs, blk_t block,
933 extern errcode_t ext2fs_read_dir_block2(ext2_filsys fs, blk_t block,
934 void *buf, int flags);
935 extern errcode_t ext2fs_read_dir_block3(ext2_filsys fs, blk64_t block,
936 void *buf, int flags);
937 extern errcode_t ext2fs_write_dir_block(ext2_filsys fs, blk_t block,
939 extern errcode_t ext2fs_write_dir_block2(ext2_filsys fs, blk_t block,
940 void *buf, int flags);
941 extern errcode_t ext2fs_write_dir_block3(ext2_filsys fs, blk64_t block,
942 void *buf, int flags);
945 extern errcode_t ext2fs_dirhash(int version, const char *name, int len,
947 ext2_dirhash_t *ret_hash,
948 ext2_dirhash_t *ret_minor_hash);
952 extern errcode_t ext2fs_get_rec_len(ext2_filsys fs,
953 struct ext2_dir_entry *dirent,
954 unsigned int *rec_len);
955 extern errcode_t ext2fs_set_rec_len(ext2_filsys fs,
957 struct ext2_dir_entry *dirent);
958 extern errcode_t ext2fs_dir_iterate(ext2_filsys fs,
962 int (*func)(struct ext2_dir_entry *dirent,
968 extern errcode_t ext2fs_dir_iterate2(ext2_filsys fs,
972 int (*func)(ext2_ino_t dir,
974 struct ext2_dir_entry *dirent,
982 extern errcode_t ext2fs_dup_handle(ext2_filsys src, ext2_filsys *dest);
985 extern errcode_t ext2fs_expand_dir(ext2_filsys fs, ext2_ino_t dir);
988 extern __u32 ext2fs_ext_attr_hash_entry(struct ext2_ext_attr_entry *entry,
990 extern errcode_t ext2fs_read_ext_attr(ext2_filsys fs, blk_t block, void *buf);
991 extern errcode_t ext2fs_read_ext_attr2(ext2_filsys fs, blk64_t block,
993 extern errcode_t ext2fs_write_ext_attr(ext2_filsys fs, blk_t block,
995 extern errcode_t ext2fs_write_ext_attr2(ext2_filsys fs, blk64_t block,
997 extern errcode_t ext2fs_adjust_ea_refcount(ext2_filsys fs, blk_t blk,
999 int adjust, __u32 *newcount);
1000 extern errcode_t ext2fs_adjust_ea_refcount2(ext2_filsys fs, blk64_t blk,
1002 int adjust, __u32 *newcount);
1005 extern errcode_t ext2fs_extent_header_verify(void *ptr, int size);
1006 extern errcode_t ext2fs_extent_open(ext2_filsys fs, ext2_ino_t ino,
1007 ext2_extent_handle_t *handle);
1008 extern errcode_t ext2fs_extent_open2(ext2_filsys fs, ext2_ino_t ino,
1009 struct ext2_inode *inode,
1010 ext2_extent_handle_t *ret_handle);
1011 extern void ext2fs_extent_free(ext2_extent_handle_t handle);
1012 extern errcode_t ext2fs_extent_get(ext2_extent_handle_t handle,
1013 int flags, struct ext2fs_extent *extent);
1014 extern errcode_t ext2fs_extent_replace(ext2_extent_handle_t handle, int flags,
1015 struct ext2fs_extent *extent);
1016 extern errcode_t ext2fs_extent_insert(ext2_extent_handle_t handle, int flags,
1017 struct ext2fs_extent *extent);
1018 extern errcode_t ext2fs_extent_set_bmap(ext2_extent_handle_t handle,
1019 blk64_t logical, blk64_t physical,
1021 extern errcode_t ext2fs_extent_delete(ext2_extent_handle_t handle, int flags);
1022 extern errcode_t ext2fs_extent_get_info(ext2_extent_handle_t handle,
1023 struct ext2_extent_info *info);
1024 extern errcode_t ext2fs_extent_goto(ext2_extent_handle_t handle,
1028 extern errcode_t ext2fs_file_open2(ext2_filsys fs, ext2_ino_t ino,
1029 struct ext2_inode *inode,
1030 int flags, ext2_file_t *ret);
1031 extern errcode_t ext2fs_file_open(ext2_filsys fs, ext2_ino_t ino,
1032 int flags, ext2_file_t *ret);
1033 extern ext2_filsys ext2fs_file_get_fs(ext2_file_t file);
1034 struct ext2_inode *ext2fs_file_get_inode(ext2_file_t file);
1035 extern errcode_t ext2fs_file_close(ext2_file_t file);
1036 extern errcode_t ext2fs_file_flush(ext2_file_t file);
1037 extern errcode_t ext2fs_file_read(ext2_file_t file, void *buf,
1038 unsigned int wanted, unsigned int *got);
1039 extern errcode_t ext2fs_file_write(ext2_file_t file, const void *buf,
1040 unsigned int nbytes, unsigned int *written);
1041 extern errcode_t ext2fs_file_llseek(ext2_file_t file, __u64 offset,
1042 int whence, __u64 *ret_pos);
1043 extern errcode_t ext2fs_file_lseek(ext2_file_t file, ext2_off_t offset,
1044 int whence, ext2_off_t *ret_pos);
1045 errcode_t ext2fs_file_get_lsize(ext2_file_t file, __u64 *ret_size);
1046 extern ext2_off_t ext2fs_file_get_size(ext2_file_t file);
1047 extern errcode_t ext2fs_file_set_size(ext2_file_t file, ext2_off_t size);
1048 extern errcode_t ext2fs_file_set_size2(ext2_file_t file, ext2_off64_t size);
1051 extern char *ext2fs_find_block_device(dev_t device);
1054 extern errcode_t ext2fs_sync_device(int fd, int flushb);
1057 extern void ext2fs_free(ext2_filsys fs);
1058 extern void ext2fs_free_dblist(ext2_dblist dblist);
1059 extern void ext2fs_badblocks_list_free(ext2_badblocks_list bb);
1060 extern void ext2fs_u32_list_free(ext2_u32_list bb);
1063 extern void ext2fs_free_generic_bitmap(ext2fs_inode_bitmap bitmap);
1064 extern errcode_t ext2fs_make_generic_bitmap(errcode_t magic, ext2_filsys fs,
1065 __u32 start, __u32 end,
1067 const char *descr, char *init_map,
1068 ext2fs_generic_bitmap *ret);
1069 extern errcode_t ext2fs_allocate_generic_bitmap(__u32 start,
1073 ext2fs_generic_bitmap *ret);
1074 extern errcode_t ext2fs_copy_generic_bitmap(ext2fs_generic_bitmap src,
1075 ext2fs_generic_bitmap *dest);
1076 extern void ext2fs_clear_generic_bitmap(ext2fs_generic_bitmap bitmap);
1077 extern errcode_t ext2fs_fudge_generic_bitmap_end(ext2fs_inode_bitmap bitmap,
1082 extern void ext2fs_set_generic_bitmap_padding(ext2fs_generic_bitmap map);
1083 extern errcode_t ext2fs_resize_generic_bitmap(errcode_t magic,
1086 ext2fs_generic_bitmap bmap);
1087 extern errcode_t ext2fs_compare_generic_bitmap(errcode_t magic, errcode_t neq,
1088 ext2fs_generic_bitmap bm1,
1089 ext2fs_generic_bitmap bm2);
1090 extern errcode_t ext2fs_get_generic_bitmap_range(ext2fs_generic_bitmap bmap,
1092 __u32 start, __u32 num,
1094 extern errcode_t ext2fs_set_generic_bitmap_range(ext2fs_generic_bitmap bmap,
1096 __u32 start, __u32 num,
1099 /* gen_bitmap64.c */
1100 void ext2fs_free_generic_bmap(ext2fs_generic_bitmap bmap);
1101 errcode_t ext2fs_alloc_generic_bmap(ext2_filsys fs, errcode_t magic,
1102 int type, __u64 start, __u64 end,
1105 ext2fs_generic_bitmap *ret);
1106 errcode_t ext2fs_copy_generic_bmap(ext2fs_generic_bitmap src,
1107 ext2fs_generic_bitmap *dest);
1108 void ext2fs_clear_generic_bmap(ext2fs_generic_bitmap bitmap);
1109 errcode_t ext2fs_fudge_generic_bmap_end(ext2fs_generic_bitmap bitmap,
1111 __u64 end, __u64 *oend);
1112 void ext2fs_set_generic_bmap_padding(ext2fs_generic_bitmap bmap);
1113 errcode_t ext2fs_resize_generic_bmap(ext2fs_generic_bitmap bmap,
1115 __u64 new_real_end);
1116 errcode_t ext2fs_compare_generic_bmap(errcode_t neq,
1117 ext2fs_generic_bitmap bm1,
1118 ext2fs_generic_bitmap bm2);
1119 errcode_t ext2fs_get_generic_bmap_range(ext2fs_generic_bitmap bmap,
1120 __u64 start, unsigned int num,
1122 errcode_t ext2fs_set_generic_bmap_range(ext2fs_generic_bitmap bmap,
1123 __u64 start, unsigned int num,
1125 errcode_t ext2fs_convert_subcluster_bitmap(ext2_filsys fs,
1126 ext2fs_block_bitmap *bitmap);
1129 extern errcode_t ext2fs_get_device_size(const char *file, int blocksize,
1131 extern errcode_t ext2fs_get_device_size2(const char *file, int blocksize,
1132 blk64_t *retblocks);
1135 errcode_t ext2fs_get_device_sectsize(const char *file, int *sectsize);
1136 errcode_t ext2fs_get_device_phys_sectsize(const char *file, int *sectsize);
1139 errcode_t ext2fs_iblk_add_blocks(ext2_filsys fs, struct ext2_inode *inode,
1140 blk64_t num_blocks);
1141 errcode_t ext2fs_iblk_sub_blocks(ext2_filsys fs, struct ext2_inode *inode,
1142 blk64_t num_blocks);
1143 errcode_t ext2fs_iblk_set(ext2_filsys fs, struct ext2_inode *inode, blk64_t b);
1146 extern errcode_t ext2fs_image_inode_write(ext2_filsys fs, int fd, int flags);
1147 extern errcode_t ext2fs_image_inode_read(ext2_filsys fs, int fd, int flags);
1148 extern errcode_t ext2fs_image_super_write(ext2_filsys fs, int fd, int flags);
1149 extern errcode_t ext2fs_image_super_read(ext2_filsys fs, int fd, int flags);
1150 extern errcode_t ext2fs_image_bitmap_write(ext2_filsys fs, int fd, int flags);
1151 extern errcode_t ext2fs_image_bitmap_read(ext2_filsys fs, int fd, int flags);
1154 errcode_t ext2fs_read_ind_block(ext2_filsys fs, blk_t blk, void *buf);
1155 errcode_t ext2fs_write_ind_block(ext2_filsys fs, blk_t blk, void *buf);
1158 extern errcode_t ext2fs_initialize(const char *name, int flags,
1159 struct ext2_super_block *param,
1160 io_manager manager, ext2_filsys *ret_fs);
1163 extern void ext2fs_free_icount(ext2_icount_t icount);
1164 extern errcode_t ext2fs_create_icount_tdb(ext2_filsys fs, char *tdb_dir,
1165 int flags, ext2_icount_t *ret);
1166 extern errcode_t ext2fs_create_icount2(ext2_filsys fs, int flags,
1168 ext2_icount_t hint, ext2_icount_t *ret);
1169 extern errcode_t ext2fs_create_icount(ext2_filsys fs, int flags,
1171 ext2_icount_t *ret);
1172 extern errcode_t ext2fs_icount_fetch(ext2_icount_t icount, ext2_ino_t ino,
1174 extern errcode_t ext2fs_icount_increment(ext2_icount_t icount, ext2_ino_t ino,
1176 extern errcode_t ext2fs_icount_decrement(ext2_icount_t icount, ext2_ino_t ino,
1178 extern errcode_t ext2fs_icount_store(ext2_icount_t icount, ext2_ino_t ino,
1180 extern ext2_ino_t ext2fs_get_icount_size(ext2_icount_t icount);
1181 errcode_t ext2fs_icount_validate(ext2_icount_t icount, FILE *);
1184 extern errcode_t ext2fs_flush_icache(ext2_filsys fs);
1185 extern errcode_t ext2fs_get_next_inode_full(ext2_inode_scan scan,
1187 struct ext2_inode *inode,
1189 extern errcode_t ext2fs_open_inode_scan(ext2_filsys fs, int buffer_blocks,
1190 ext2_inode_scan *ret_scan);
1191 extern void ext2fs_close_inode_scan(ext2_inode_scan scan);
1192 extern errcode_t ext2fs_get_next_inode(ext2_inode_scan scan, ext2_ino_t *ino,
1193 struct ext2_inode *inode);
1194 extern errcode_t ext2fs_inode_scan_goto_blockgroup(ext2_inode_scan scan,
1196 extern void ext2fs_set_inode_callback
1197 (ext2_inode_scan scan,
1198 errcode_t (*done_group)(ext2_filsys fs,
1199 ext2_inode_scan scan,
1202 void *done_group_data);
1203 extern int ext2fs_inode_scan_flags(ext2_inode_scan scan, int set_flags,
1205 extern errcode_t ext2fs_read_inode_full(ext2_filsys fs, ext2_ino_t ino,
1206 struct ext2_inode * inode,
1208 extern errcode_t ext2fs_read_inode (ext2_filsys fs, ext2_ino_t ino,
1209 struct ext2_inode * inode);
1210 extern errcode_t ext2fs_write_inode_full(ext2_filsys fs, ext2_ino_t ino,
1211 struct ext2_inode * inode,
1213 extern errcode_t ext2fs_write_inode(ext2_filsys fs, ext2_ino_t ino,
1214 struct ext2_inode * inode);
1215 extern errcode_t ext2fs_write_new_inode(ext2_filsys fs, ext2_ino_t ino,
1216 struct ext2_inode * inode);
1217 extern errcode_t ext2fs_get_blocks(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
1218 extern errcode_t ext2fs_check_directory(ext2_filsys fs, ext2_ino_t ino);
1221 extern io_manager inode_io_manager;
1222 extern errcode_t ext2fs_inode_io_intern(ext2_filsys fs, ext2_ino_t ino,
1224 extern errcode_t ext2fs_inode_io_intern2(ext2_filsys fs, ext2_ino_t ino,
1225 struct ext2_inode *inode,
1229 extern errcode_t ext2fs_check_if_mounted(const char *file, int *mount_flags);
1230 extern errcode_t ext2fs_check_mount_point(const char *device, int *mount_flags,
1231 char *mtpt, int mtlen);
1234 extern errcode_t ext2fs_punch(ext2_filsys fs, ext2_ino_t ino,
1235 struct ext2_inode *inode,
1236 char *block_buf, blk64_t start,
1240 extern errcode_t ext2fs_lookup(ext2_filsys fs, ext2_ino_t dir, const char *name,
1241 int namelen, char *buf, ext2_ino_t *inode);
1242 extern errcode_t ext2fs_namei(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1243 const char *name, ext2_ino_t *inode);
1244 errcode_t ext2fs_namei_follow(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1245 const char *name, ext2_ino_t *inode);
1246 extern errcode_t ext2fs_follow_link(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1247 ext2_ino_t inode, ext2_ino_t *res_inode);
1250 int ext2fs_native_flag(void);
1253 extern errcode_t ext2fs_new_dir_block(ext2_filsys fs, ext2_ino_t dir_ino,
1254 ext2_ino_t parent_ino, char **block);
1257 extern errcode_t ext2fs_mkdir(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t inum,
1261 extern errcode_t ext2fs_zero_blocks(ext2_filsys fs, blk_t blk, int num,
1262 blk_t *ret_blk, int *ret_count);
1263 extern errcode_t ext2fs_zero_blocks2(ext2_filsys fs, blk64_t blk, int num,
1264 blk64_t *ret_blk, int *ret_count);
1265 extern errcode_t ext2fs_create_journal_superblock(ext2_filsys fs,
1266 __u32 size, int flags,
1268 extern errcode_t ext2fs_add_journal_device(ext2_filsys fs,
1269 ext2_filsys journal_dev);
1270 extern errcode_t ext2fs_add_journal_inode(ext2_filsys fs, blk_t size,
1272 extern int ext2fs_default_journal_size(__u64 blocks);
1275 extern errcode_t ext2fs_open(const char *name, int flags, int superblock,
1276 unsigned int block_size, io_manager manager,
1277 ext2_filsys *ret_fs);
1278 extern errcode_t ext2fs_open2(const char *name, const char *io_options,
1279 int flags, int superblock,
1280 unsigned int block_size, io_manager manager,
1281 ext2_filsys *ret_fs);
1282 extern blk64_t ext2fs_descriptor_block_loc2(ext2_filsys fs,
1283 blk64_t group_block, dgrp_t i);
1284 extern blk_t ext2fs_descriptor_block_loc(ext2_filsys fs, blk_t group_block,
1286 errcode_t ext2fs_get_data_io(ext2_filsys fs, io_channel *old_io);
1287 errcode_t ext2fs_set_data_io(ext2_filsys fs, io_channel new_io);
1288 errcode_t ext2fs_rewrite_to_io(ext2_filsys fs, io_channel new_io);
1290 /* get_pathname.c */
1291 extern errcode_t ext2fs_get_pathname(ext2_filsys fs, ext2_ino_t dir, ext2_ino_t ino,
1295 errcode_t ext2fs_link(ext2_filsys fs, ext2_ino_t dir, const char *name,
1296 ext2_ino_t ino, int flags);
1297 errcode_t ext2fs_unlink(ext2_filsys fs, ext2_ino_t dir, const char *name,
1298 ext2_ino_t ino, int flags);
1301 extern errcode_t ext2fs_read_bb_inode(ext2_filsys fs,
1302 ext2_badblocks_list *bb_list);
1304 /* read_bb_file.c */
1305 extern errcode_t ext2fs_read_bb_FILE2(ext2_filsys fs, FILE *f,
1306 ext2_badblocks_list *bb_list,
1308 void (*invalid)(ext2_filsys fs,
1312 extern errcode_t ext2fs_read_bb_FILE(ext2_filsys fs, FILE *f,
1313 ext2_badblocks_list *bb_list,
1314 void (*invalid)(ext2_filsys fs,
1318 extern errcode_t ext2fs_create_resize_inode(ext2_filsys fs);
1321 extern void ext2fs_swap_ext_attr(char *to, char *from, int bufsize,
1323 extern void ext2fs_swap_ext_attr_header(struct ext2_ext_attr_header *to_header,
1324 struct ext2_ext_attr_header *from_hdr);
1325 extern void ext2fs_swap_ext_attr_entry(struct ext2_ext_attr_entry *to_entry,
1326 struct ext2_ext_attr_entry *from_entry);
1327 extern void ext2fs_swap_super(struct ext2_super_block * super);
1328 extern void ext2fs_swap_group_desc(struct ext2_group_desc *gdp);
1329 extern void ext2fs_swap_group_desc2(ext2_filsys, struct ext2_group_desc *gdp);
1330 extern void ext2fs_swap_inode_full(ext2_filsys fs, struct ext2_inode_large *t,
1331 struct ext2_inode_large *f, int hostorder,
1333 extern void ext2fs_swap_inode(ext2_filsys fs,struct ext2_inode *t,
1334 struct ext2_inode *f, int hostorder);
1337 extern int ext2fs_inode_has_valid_blocks(struct ext2_inode *inode);
1340 extern int ext2fs_parse_version_string(const char *ver_string);
1341 extern int ext2fs_get_library_version(const char **ver_string,
1342 const char **date_string);
1344 /* write_bb_file.c */
1345 extern errcode_t ext2fs_write_bb_FILE(ext2_badblocks_list bb_list,
1350 /* inline functions */
1351 extern errcode_t ext2fs_get_mem(unsigned long size, void *ptr);
1352 extern errcode_t ext2fs_get_memalign(unsigned long size,
1353 unsigned long align, void *ptr);
1354 extern errcode_t ext2fs_free_mem(void *ptr);
1355 extern errcode_t ext2fs_resize_mem(unsigned long old_size,
1356 unsigned long size, void *ptr);
1357 extern void ext2fs_mark_super_dirty(ext2_filsys fs);
1358 extern void ext2fs_mark_changed(ext2_filsys fs);
1359 extern int ext2fs_test_changed(ext2_filsys fs);
1360 extern void ext2fs_mark_valid(ext2_filsys fs);
1361 extern void ext2fs_unmark_valid(ext2_filsys fs);
1362 extern int ext2fs_test_valid(ext2_filsys fs);
1363 extern void ext2fs_mark_ib_dirty(ext2_filsys fs);
1364 extern void ext2fs_mark_bb_dirty(ext2_filsys fs);
1365 extern int ext2fs_test_ib_dirty(ext2_filsys fs);
1366 extern int ext2fs_test_bb_dirty(ext2_filsys fs);
1367 extern int ext2fs_group_of_blk(ext2_filsys fs, blk_t blk);
1368 extern int ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino);
1369 extern blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group);
1370 extern blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group);
1371 extern blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
1372 struct ext2_inode *inode);
1373 extern unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b);
1374 extern __u64 ext2fs_div64_ceil(__u64 a, __u64 b);
1377 * The actual inlined functions definitions themselves...
1379 * If NO_INLINE_FUNCS is defined, then we won't try to do inline
1382 #if (defined(INCLUDE_INLINE_FUNCS) || !defined(NO_INLINE_FUNCS))
1383 #ifdef INCLUDE_INLINE_FUNCS
1384 #define _INLINE_ extern
1387 #define _INLINE_ extern __inline__
1388 #else /* For Watcom C */
1389 #define _INLINE_ extern inline
1393 #ifndef EXT2_CUSTOM_MEMORY_ROUTINES
1398 _INLINE_ errcode_t ext2fs_get_mem(unsigned long size, void *ptr)
1404 return EXT2_ET_NO_MEMORY;
1405 memcpy(ptr, &pp, sizeof (pp));
1409 _INLINE_ errcode_t ext2fs_get_memalign(unsigned long size,
1410 unsigned long align, void *ptr)
1416 if (retval = posix_memalign((void **) ptr, align, size)) {
1417 if (retval == ENOMEM)
1418 return EXT2_ET_NO_MEMORY;
1424 _INLINE_ errcode_t ext2fs_get_memzero(unsigned long size, void *ptr)
1430 return EXT2_ET_NO_MEMORY;
1431 memset(pp, 0, size);
1432 memcpy(ptr, &pp, sizeof(pp));
1436 _INLINE_ errcode_t ext2fs_get_array(unsigned long count, unsigned long size, void *ptr)
1438 if (count && (-1UL)/count<size)
1439 return EXT2_ET_NO_MEMORY;
1440 return ext2fs_get_mem(count*size, ptr);
1443 _INLINE_ errcode_t ext2fs_get_arrayzero(unsigned long count,
1444 unsigned long size, void *ptr)
1448 if (count && (-1UL)/count<size)
1449 return EXT2_ET_NO_MEMORY;
1450 pp = calloc(count, size);
1452 return EXT2_ET_NO_MEMORY;
1453 memcpy(ptr, &pp, sizeof(pp));
1460 _INLINE_ errcode_t ext2fs_free_mem(void *ptr)
1464 memcpy(&p, ptr, sizeof(p));
1467 memcpy(ptr, &p, sizeof(p));
1474 _INLINE_ errcode_t ext2fs_resize_mem(unsigned long EXT2FS_ATTR((unused)) old_size,
1475 unsigned long size, void *ptr)
1479 /* Use "memcpy" for pointer assignments here to avoid problems
1480 * with C99 strict type aliasing rules. */
1481 memcpy(&p, ptr, sizeof(p));
1482 p = realloc(p, size);
1484 return EXT2_ET_NO_MEMORY;
1485 memcpy(ptr, &p, sizeof(p));
1488 #endif /* Custom memory routines */
1491 * Mark a filesystem superblock as dirty
1493 _INLINE_ void ext2fs_mark_super_dirty(ext2_filsys fs)
1495 fs->flags |= EXT2_FLAG_DIRTY | EXT2_FLAG_CHANGED;
1499 * Mark a filesystem as changed
1501 _INLINE_ void ext2fs_mark_changed(ext2_filsys fs)
1503 fs->flags |= EXT2_FLAG_CHANGED;
1507 * Check to see if a filesystem has changed
1509 _INLINE_ int ext2fs_test_changed(ext2_filsys fs)
1511 return (fs->flags & EXT2_FLAG_CHANGED);
1515 * Mark a filesystem as valid
1517 _INLINE_ void ext2fs_mark_valid(ext2_filsys fs)
1519 fs->flags |= EXT2_FLAG_VALID;
1523 * Mark a filesystem as NOT valid
1525 _INLINE_ void ext2fs_unmark_valid(ext2_filsys fs)
1527 fs->flags &= ~EXT2_FLAG_VALID;
1531 * Check to see if a filesystem is valid
1533 _INLINE_ int ext2fs_test_valid(ext2_filsys fs)
1535 return (fs->flags & EXT2_FLAG_VALID);
1539 * Mark the inode bitmap as dirty
1541 _INLINE_ void ext2fs_mark_ib_dirty(ext2_filsys fs)
1543 fs->flags |= EXT2_FLAG_IB_DIRTY | EXT2_FLAG_CHANGED;
1547 * Mark the block bitmap as dirty
1549 _INLINE_ void ext2fs_mark_bb_dirty(ext2_filsys fs)
1551 fs->flags |= EXT2_FLAG_BB_DIRTY | EXT2_FLAG_CHANGED;
1555 * Check to see if a filesystem's inode bitmap is dirty
1557 _INLINE_ int ext2fs_test_ib_dirty(ext2_filsys fs)
1559 return (fs->flags & EXT2_FLAG_IB_DIRTY);
1563 * Check to see if a filesystem's block bitmap is dirty
1565 _INLINE_ int ext2fs_test_bb_dirty(ext2_filsys fs)
1567 return (fs->flags & EXT2_FLAG_BB_DIRTY);
1571 * Return the group # of a block
1573 _INLINE_ int ext2fs_group_of_blk(ext2_filsys fs, blk_t blk)
1575 return ext2fs_group_of_blk2(fs, blk);
1578 * Return the group # of an inode number
1580 _INLINE_ int ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino)
1582 return (ino - 1) / fs->super->s_inodes_per_group;
1586 * Return the first block (inclusive) in a group
1588 _INLINE_ blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group)
1590 return ext2fs_group_first_block2(fs, group);
1594 * Return the last block (inclusive) in a group
1596 _INLINE_ blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group)
1598 return ext2fs_group_last_block2(fs, group);
1601 _INLINE_ blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
1602 struct ext2_inode *inode)
1604 return ext2fs_inode_data_blocks2(fs, inode);
1608 * This is an efficient, overflow safe way of calculating ceil((1.0 * a) / b)
1610 _INLINE_ unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b)
1614 return ((a - 1) / b) + 1;
1617 _INLINE_ __u64 ext2fs_div64_ceil(__u64 a, __u64 b)
1621 return ((a - 1) / b) + 1;
1631 #endif /* _EXT2FS_EXT2FS_H */