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 #define _XOPEN_SOURCE 600 /* for posix_memalign() */
37 * Where the master copy of the superblock is located, and how big
38 * superblocks are supposed to be. We define SUPERBLOCK_SIZE because
39 * the size of the superblock structure is not necessarily trustworthy
40 * (some versions have the padding set up so that the superblock is
43 #define SUPERBLOCK_OFFSET 1024
44 #define SUPERBLOCK_SIZE 1024
47 * The last ext2fs revision level that this version of the library is
50 #define EXT2_LIB_CURRENT_REV EXT2_DYNAMIC_REV
52 #ifdef HAVE_SYS_TYPES_H
53 #include <sys/types.h>
60 #include <sys/types.h>
65 /* If the "#define _XOPEN_SOURCE 600" didn't succeed in declaring
66 * posix_memalign(), maybe due to <features.h> or <stdlib.h> included beforej
67 * _XOPEN_SOURCE, declare it here to avoid compiler warnings. */
68 extern int posix_memalign(void **__memptr, size_t __alignment, size_t __size);
71 #if EXT2_FLAT_INCLUDES
74 #include "ext3_extents.h"
76 #include <ext2fs/ext2_types.h>
77 #include <ext2fs/ext2_fs.h>
78 #include <ext2fs/ext3_extents.h>
79 #endif /* EXT2_FLAT_INCLUDES */
81 typedef __u32 ext2_ino_t;
83 typedef __u64 blk64_t;
85 typedef __u32 ext2_off_t;
86 typedef __u64 ext2_off64_t;
87 typedef __s64 e2_blkcnt_t;
88 typedef __u32 ext2_dirhash_t;
90 #if EXT2_FLAT_INCLUDES
94 #include "ext2_ext_attr.h"
96 #include <et/com_err.h>
97 #include <ext2fs/ext2_io.h>
98 #include <ext2fs/ext2_err.h>
99 #include <ext2fs/ext2_ext_attr.h>
103 * Portability help for Microsoft Visual C++
106 #define EXT2_QSORT_TYPE int __cdecl
108 #define EXT2_QSORT_TYPE int
111 typedef struct struct_ext2_filsys *ext2_filsys;
113 #define EXT2FS_MARK_ERROR 0
114 #define EXT2FS_UNMARK_ERROR 1
115 #define EXT2FS_TEST_ERROR 2
117 typedef struct ext2fs_struct_generic_bitmap *ext2fs_generic_bitmap;
118 typedef struct ext2fs_struct_generic_bitmap *ext2fs_inode_bitmap;
119 typedef struct ext2fs_struct_generic_bitmap *ext2fs_block_bitmap;
121 #define EXT2_FIRST_INODE(s) EXT2_FIRST_INO(s)
125 * Badblocks list definitions
128 typedef struct ext2_struct_u32_list *ext2_badblocks_list;
129 typedef struct ext2_struct_u32_iterate *ext2_badblocks_iterate;
131 typedef struct ext2_struct_u32_list *ext2_u32_list;
132 typedef struct ext2_struct_u32_iterate *ext2_u32_iterate;
135 typedef struct ext2_struct_u32_list *badblocks_list;
136 typedef struct ext2_struct_u32_iterate *badblocks_iterate;
138 #define BADBLOCKS_FLAG_DIRTY 1
141 * ext2_dblist structure and abstractions (see dblist.c)
143 struct ext2_db_entry2 {
146 e2_blkcnt_t blockcnt;
149 /* Ye Olde 32-bit version */
150 struct ext2_db_entry {
156 typedef struct ext2_struct_dblist *ext2_dblist;
158 #define DBLIST_ABORT 1
161 * ext2_fileio definitions
164 #define EXT2_FILE_WRITE 0x0001
165 #define EXT2_FILE_CREATE 0x0002
167 #define EXT2_FILE_MASK 0x00FF
169 #define EXT2_FILE_BUF_DIRTY 0x4000
170 #define EXT2_FILE_BUF_VALID 0x2000
172 typedef struct ext2_file *ext2_file_t;
174 #define EXT2_SEEK_SET 0
175 #define EXT2_SEEK_CUR 1
176 #define EXT2_SEEK_END 2
179 * Flags for the ext2_filsys structure and for ext2fs_open()
181 #define EXT2_FLAG_RW 0x01
182 #define EXT2_FLAG_CHANGED 0x02
183 #define EXT2_FLAG_DIRTY 0x04
184 #define EXT2_FLAG_VALID 0x08
185 #define EXT2_FLAG_IB_DIRTY 0x10
186 #define EXT2_FLAG_BB_DIRTY 0x20
187 #define EXT2_FLAG_SWAP_BYTES 0x40
188 #define EXT2_FLAG_SWAP_BYTES_READ 0x80
189 #define EXT2_FLAG_SWAP_BYTES_WRITE 0x100
190 #define EXT2_FLAG_MASTER_SB_ONLY 0x200
191 #define EXT2_FLAG_FORCE 0x400
192 #define EXT2_FLAG_SUPER_ONLY 0x800
193 #define EXT2_FLAG_JOURNAL_DEV_OK 0x1000
194 #define EXT2_FLAG_IMAGE_FILE 0x2000
195 #define EXT2_FLAG_EXCLUSIVE 0x4000
196 #define EXT2_FLAG_SOFTSUPP_FEATURES 0x8000
197 #define EXT2_FLAG_NOFREE_ON_ERROR 0x10000
198 #define EXT2_FLAG_64BITS 0x20000
199 #define EXT2_FLAG_PRINT_PROGRESS 0x40000
200 #define EXT2_FLAG_DIRECT_IO 0x80000
201 #define EXT2_FLAG_SKIP_MMP 0x100000
204 * Special flag in the ext2 inode i_flag field that means that this is
205 * a new inode. (So that ext2_write_inode() can clear extra fields.)
207 #define EXT2_NEW_INODE_FL 0x80000000
210 * Flags for mkjournal
212 #define EXT2_MKJOURNAL_V1_SUPER 0x0000001 /* create V1 superblock (deprecated) */
213 #define EXT2_MKJOURNAL_LAZYINIT 0x0000002 /* don't zero journal inode before use*/
214 #define EXT2_MKJOURNAL_NO_MNT_CHECK 0x0000004 /* don't check mount status */
216 struct opaque_ext2_group_desc;
218 struct struct_ext2_filsys {
223 struct ext2_super_block * super;
224 unsigned int blocksize;
226 dgrp_t group_desc_count;
227 unsigned long desc_blocks;
228 struct opaque_ext2_group_desc * group_desc;
229 unsigned int inode_blocks_per_group;
230 ext2fs_inode_bitmap inode_map;
231 ext2fs_block_bitmap block_map;
232 /* XXX FIXME-64: not 64-bit safe, but not used? */
233 errcode_t (*get_blocks)(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
234 errcode_t (*check_directory)(ext2_filsys fs, ext2_ino_t ino);
235 errcode_t (*write_bitmaps)(ext2_filsys fs);
236 errcode_t (*read_inode)(ext2_filsys fs, ext2_ino_t ino,
237 struct ext2_inode *inode);
238 errcode_t (*write_inode)(ext2_filsys fs, ext2_ino_t ino,
239 struct ext2_inode *inode);
240 ext2_badblocks_list badblocks;
242 __u32 stride; /* for mke2fs */
243 struct ext2_super_block * orig_super;
244 struct ext2_image_hdr * image_header;
247 int cluster_ratio_bits;
248 __u16 default_bitmap_type;
251 * Reserved for future expansion
256 * Reserved for the use of the calling application.
263 struct ext2_inode_cache *icache;
267 * More callback functions
269 errcode_t (*get_alloc_block)(ext2_filsys fs, blk64_t goal,
271 void (*block_alloc_stats)(ext2_filsys fs, blk64_t blk, int inuse);
274 * Buffers for Multiple mount protection(MMP) block.
281 * Time at which e2fsck last updated the MMP block.
283 long mmp_last_written;
286 #if EXT2_FLAT_INCLUDES
287 #include "e2_bitops.h"
289 #include <ext2fs/bitops.h>
293 * 64-bit bitmap backend types
295 #define EXT2FS_BMAP64_BITARRAY 1
296 #define EXT2FS_BMAP64_RBTREE 2
297 #define EXT2FS_BMAP64_AUTODIR 3
300 * Return flags for the block iterator functions
302 #define BLOCK_CHANGED 1
303 #define BLOCK_ABORT 2
304 #define BLOCK_ERROR 4
307 * Block interate flags
309 * BLOCK_FLAG_APPEND, or BLOCK_FLAG_HOLE, indicates that the interator
310 * function should be called on blocks where the block number is zero.
311 * This is used by ext2fs_expand_dir() to be able to add a new block
312 * to an inode. It can also be used for programs that want to be able
313 * to deal with files that contain "holes".
315 * BLOCK_FLAG_DEPTH_TRAVERSE indicates that the iterator function for
316 * the indirect, doubly indirect, etc. blocks should be called after
317 * all of the blocks containined in the indirect blocks are processed.
318 * This is useful if you are going to be deallocating blocks from an
321 * BLOCK_FLAG_DATA_ONLY indicates that the iterator function should be
322 * called for data blocks only.
324 * BLOCK_FLAG_READ_ONLY is a promise by the caller that it will not
325 * modify returned block number.
327 * BLOCK_FLAG_NO_LARGE is for internal use only. It informs
328 * ext2fs_block_iterate2 that large files won't be accepted.
330 #define BLOCK_FLAG_APPEND 1
331 #define BLOCK_FLAG_HOLE 1
332 #define BLOCK_FLAG_DEPTH_TRAVERSE 2
333 #define BLOCK_FLAG_DATA_ONLY 4
334 #define BLOCK_FLAG_READ_ONLY 8
336 #define BLOCK_FLAG_NO_LARGE 0x1000
339 * Magic "block count" return values for the block iterator function.
341 #define BLOCK_COUNT_IND (-1)
342 #define BLOCK_COUNT_DIND (-2)
343 #define BLOCK_COUNT_TIND (-3)
344 #define BLOCK_COUNT_TRANSLATOR (-4)
348 * Flags for ext2fs_move_blocks
350 #define EXT2_BMOVE_GET_DBLIST 0x0001
351 #define EXT2_BMOVE_DEBUG 0x0002
355 * Generic (non-filesystem layout specific) extents structure
358 #define EXT2_EXTENT_FLAGS_LEAF 0x0001
359 #define EXT2_EXTENT_FLAGS_UNINIT 0x0002
360 #define EXT2_EXTENT_FLAGS_SECOND_VISIT 0x0004
362 struct ext2fs_extent {
363 blk64_t e_pblk; /* first physical block */
364 blk64_t e_lblk; /* first logical block extent covers */
365 __u32 e_len; /* number of blocks covered by extent */
366 __u32 e_flags; /* extent flags */
369 typedef struct ext2_extent_handle *ext2_extent_handle_t;
370 typedef struct ext2_extent_path *ext2_extent_path_t;
373 * Flags used by ext2fs_extent_get()
375 #define EXT2_EXTENT_CURRENT 0x0000
376 #define EXT2_EXTENT_MOVE_MASK 0x000F
377 #define EXT2_EXTENT_ROOT 0x0001
378 #define EXT2_EXTENT_LAST_LEAF 0x0002
379 #define EXT2_EXTENT_FIRST_SIB 0x0003
380 #define EXT2_EXTENT_LAST_SIB 0x0004
381 #define EXT2_EXTENT_NEXT_SIB 0x0005
382 #define EXT2_EXTENT_PREV_SIB 0x0006
383 #define EXT2_EXTENT_NEXT_LEAF 0x0007
384 #define EXT2_EXTENT_PREV_LEAF 0x0008
385 #define EXT2_EXTENT_NEXT 0x0009
386 #define EXT2_EXTENT_PREV 0x000A
387 #define EXT2_EXTENT_UP 0x000B
388 #define EXT2_EXTENT_DOWN 0x000C
389 #define EXT2_EXTENT_DOWN_AND_LAST 0x000D
392 * Flags used by ext2fs_extent_insert()
394 #define EXT2_EXTENT_INSERT_AFTER 0x0001 /* insert after handle loc'n */
395 #define EXT2_EXTENT_INSERT_NOSPLIT 0x0002 /* insert may not cause split */
398 * Flags used by ext2fs_extent_delete()
400 #define EXT2_EXTENT_DELETE_KEEP_EMPTY 0x001 /* keep node if last extnt gone */
403 * Flags used by ext2fs_extent_set_bmap()
405 #define EXT2_EXTENT_SET_BMAP_UNINIT 0x0001
408 * Data structure returned by ext2fs_extent_get_info()
410 struct ext2_extent_info {
420 __u32 max_uninit_len;
424 * Flags for directory block reading and writing functions
426 #define EXT2_DIRBLOCK_V2_STRUCT 0x0001
429 * Return flags for the directory iterator functions
431 #define DIRENT_CHANGED 1
432 #define DIRENT_ABORT 2
433 #define DIRENT_ERROR 3
436 * Directory iterator flags
439 #define DIRENT_FLAG_INCLUDE_EMPTY 1
440 #define DIRENT_FLAG_INCLUDE_REMOVED 2
442 #define DIRENT_DOT_FILE 1
443 #define DIRENT_DOT_DOT_FILE 2
444 #define DIRENT_OTHER_FILE 3
445 #define DIRENT_DELETED_FILE 4
448 * Inode scan definitions
450 typedef struct ext2_struct_inode_scan *ext2_inode_scan;
455 #define EXT2_SF_CHK_BADBLOCKS 0x0001
456 #define EXT2_SF_BAD_INODE_BLK 0x0002
457 #define EXT2_SF_BAD_EXTRA_BYTES 0x0004
458 #define EXT2_SF_SKIP_MISSING_ITABLE 0x0008
459 #define EXT2_SF_DO_LAZY 0x0010
462 * ext2fs_check_if_mounted flags
464 #define EXT2_MF_MOUNTED 1
465 #define EXT2_MF_ISROOT 2
466 #define EXT2_MF_READONLY 4
467 #define EXT2_MF_SWAP 8
468 #define EXT2_MF_BUSY 16
471 * Ext2/linux mode flags. We define them here so that we don't need
472 * to depend on the OS's sys/stat.h, since we may be compiling on a
475 #define LINUX_S_IFMT 00170000
476 #define LINUX_S_IFSOCK 0140000
477 #define LINUX_S_IFLNK 0120000
478 #define LINUX_S_IFREG 0100000
479 #define LINUX_S_IFBLK 0060000
480 #define LINUX_S_IFDIR 0040000
481 #define LINUX_S_IFCHR 0020000
482 #define LINUX_S_IFIFO 0010000
483 #define LINUX_S_ISUID 0004000
484 #define LINUX_S_ISGID 0002000
485 #define LINUX_S_ISVTX 0001000
487 #define LINUX_S_IRWXU 00700
488 #define LINUX_S_IRUSR 00400
489 #define LINUX_S_IWUSR 00200
490 #define LINUX_S_IXUSR 00100
492 #define LINUX_S_IRWXG 00070
493 #define LINUX_S_IRGRP 00040
494 #define LINUX_S_IWGRP 00020
495 #define LINUX_S_IXGRP 00010
497 #define LINUX_S_IRWXO 00007
498 #define LINUX_S_IROTH 00004
499 #define LINUX_S_IWOTH 00002
500 #define LINUX_S_IXOTH 00001
502 #define LINUX_S_ISLNK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFLNK)
503 #define LINUX_S_ISREG(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFREG)
504 #define LINUX_S_ISDIR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFDIR)
505 #define LINUX_S_ISCHR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFCHR)
506 #define LINUX_S_ISBLK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFBLK)
507 #define LINUX_S_ISFIFO(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFIFO)
508 #define LINUX_S_ISSOCK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFSOCK)
511 * ext2 size of an inode
513 #define EXT2_I_SIZE(i) ((i)->i_size | ((__u64) (i)->i_size_high << 32))
516 * ext2_icount_t abstraction
518 #define EXT2_ICOUNT_OPT_INCREMENT 0x01
520 typedef struct ext2_icount *ext2_icount_t;
523 * Flags for ext2fs_bmap
525 #define BMAP_ALLOC 0x0001
526 #define BMAP_SET 0x0002
529 * Returned flags from ext2fs_bmap
531 #define BMAP_RET_UNINIT 0x0001
534 * Flags for imager.c functions
536 #define IMAGER_FLAG_INODEMAP 1
537 #define IMAGER_FLAG_SPARSEWRITE 2
540 * For checking structure magic numbers...
543 #define EXT2_CHECK_MAGIC(struct, code) \
544 if ((struct)->magic != (code)) return (code)
548 * For ext2 compression support
550 #define EXT2FS_COMPRESSED_BLKADDR ((blk_t) -1)
551 #define HOLE_BLKADDR(_b) ((_b) == 0 || (_b) == EXT2FS_COMPRESSED_BLKADDR)
554 * Features supported by this version of the library
556 #define EXT2_LIB_FEATURE_COMPAT_SUPP (EXT2_FEATURE_COMPAT_DIR_PREALLOC|\
557 EXT2_FEATURE_COMPAT_IMAGIC_INODES|\
558 EXT3_FEATURE_COMPAT_HAS_JOURNAL|\
559 EXT2_FEATURE_COMPAT_RESIZE_INODE|\
560 EXT2_FEATURE_COMPAT_DIR_INDEX|\
561 EXT2_FEATURE_COMPAT_EXT_ATTR)
563 /* This #ifdef is temporary until compression is fully supported */
564 #ifdef ENABLE_COMPRESSION
565 #ifndef I_KNOW_THAT_COMPRESSION_IS_EXPERIMENTAL
566 /* If the below warning bugs you, then have
567 `CPPFLAGS=-DI_KNOW_THAT_COMPRESSION_IS_EXPERIMENTAL' in your
568 environment at configure time. */
569 #warning "Compression support is experimental"
571 #define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\
572 EXT2_FEATURE_INCOMPAT_COMPRESSION|\
573 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\
574 EXT2_FEATURE_INCOMPAT_META_BG|\
575 EXT3_FEATURE_INCOMPAT_RECOVER|\
576 EXT3_FEATURE_INCOMPAT_EXTENTS|\
577 EXT4_FEATURE_INCOMPAT_FLEX_BG|\
578 EXT4_FEATURE_INCOMPAT_MMP|\
579 EXT4_FEATURE_INCOMPAT_64BIT)
581 #define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\
582 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\
583 EXT2_FEATURE_INCOMPAT_META_BG|\
584 EXT3_FEATURE_INCOMPAT_RECOVER|\
585 EXT3_FEATURE_INCOMPAT_EXTENTS|\
586 EXT4_FEATURE_INCOMPAT_FLEX_BG|\
587 EXT4_FEATURE_INCOMPAT_MMP|\
588 EXT4_FEATURE_INCOMPAT_64BIT)
591 #define EXT2_LIB_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|\
592 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|\
593 EXT2_FEATURE_RO_COMPAT_LARGE_FILE|\
594 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|\
595 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|\
596 EXT4_FEATURE_RO_COMPAT_GDT_CSUM|\
597 EXT4_FEATURE_RO_COMPAT_BIGALLOC|\
598 EXT4_FEATURE_RO_COMPAT_QUOTA)
600 #define EXT2_LIB_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|\
601 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|\
602 EXT2_FEATURE_RO_COMPAT_LARGE_FILE|\
603 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|\
604 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|\
605 EXT4_FEATURE_RO_COMPAT_GDT_CSUM|\
606 EXT4_FEATURE_RO_COMPAT_BIGALLOC)
610 * These features are only allowed if EXT2_FLAG_SOFTSUPP_FEATURES is passed
613 #define EXT2_LIB_SOFTSUPP_INCOMPAT (0)
614 #define EXT2_LIB_SOFTSUPP_RO_COMPAT (EXT4_FEATURE_RO_COMPAT_REPLICA)
617 /* Translate a block number to a cluster number */
618 #define EXT2FS_CLUSTER_RATIO(fs) (1 << (fs)->cluster_ratio_bits)
619 #define EXT2FS_CLUSTER_MASK(fs) (EXT2FS_CLUSTER_RATIO(fs) - 1)
620 #define EXT2FS_B2C(fs, blk) ((blk) >> (fs)->cluster_ratio_bits)
621 /* Translate a cluster number to a block number */
622 #define EXT2FS_C2B(fs, cluster) ((cluster) << (fs)->cluster_ratio_bits)
623 /* Translate # of blks to # of clusters */
624 #define EXT2FS_NUM_B2C(fs, blks) (((blks) + EXT2FS_CLUSTER_MASK(fs)) >> \
625 (fs)->cluster_ratio_bits)
627 #if defined(HAVE_FSTAT64) && !defined(__OSX_AVAILABLE_BUT_DEPRECATED)
628 typedef struct stat64 ext2fs_struct_stat;
630 typedef struct stat ext2fs_struct_stat;
634 * For ext2fs_close2() and ext2fs_flush2(), this flag allows you to
635 * avoid the fsync call.
637 #define EXT2_FLAG_FLUSH_NO_SYNC 1
640 * function prototypes
644 extern errcode_t ext2fs_new_inode(ext2_filsys fs, ext2_ino_t dir, int mode,
645 ext2fs_inode_bitmap map, ext2_ino_t *ret);
646 extern errcode_t ext2fs_new_block(ext2_filsys fs, blk_t goal,
647 ext2fs_block_bitmap map, blk_t *ret);
648 extern errcode_t ext2fs_new_block2(ext2_filsys fs, blk64_t goal,
649 ext2fs_block_bitmap map, blk64_t *ret);
650 extern errcode_t ext2fs_get_free_blocks(ext2_filsys fs, blk_t start,
651 blk_t finish, int num,
652 ext2fs_block_bitmap map,
654 extern errcode_t ext2fs_get_free_blocks2(ext2_filsys fs, blk64_t start,
655 blk64_t finish, int num,
656 ext2fs_block_bitmap map,
658 extern errcode_t ext2fs_alloc_block(ext2_filsys fs, blk_t goal,
659 char *block_buf, blk_t *ret);
660 extern errcode_t ext2fs_alloc_block2(ext2_filsys fs, blk64_t goal,
661 char *block_buf, blk64_t *ret);
662 extern void ext2fs_set_alloc_block_callback(ext2_filsys fs,
663 errcode_t (*func)(ext2_filsys fs,
666 errcode_t (**old)(ext2_filsys fs,
671 extern int ext2fs_reserve_super_and_bgd(ext2_filsys fs,
673 ext2fs_block_bitmap bmap);
674 extern void ext2fs_set_block_alloc_stats_callback(ext2_filsys fs,
675 void (*func)(ext2_filsys fs,
678 void (**old)(ext2_filsys fs,
683 void ext2fs_inode_alloc_stats(ext2_filsys fs, ext2_ino_t ino, int inuse);
684 void ext2fs_inode_alloc_stats2(ext2_filsys fs, ext2_ino_t ino,
685 int inuse, int isdir);
686 void ext2fs_block_alloc_stats(ext2_filsys fs, blk_t blk, int inuse);
687 void ext2fs_block_alloc_stats2(ext2_filsys fs, blk64_t blk, int inuse);
690 extern errcode_t ext2fs_allocate_tables(ext2_filsys fs);
691 extern errcode_t ext2fs_allocate_group_table(ext2_filsys fs, dgrp_t group,
692 ext2fs_block_bitmap bmap);
695 extern errcode_t ext2fs_u32_list_create(ext2_u32_list *ret, int size);
696 extern errcode_t ext2fs_u32_list_add(ext2_u32_list bb, __u32 blk);
697 extern int ext2fs_u32_list_find(ext2_u32_list bb, __u32 blk);
698 extern int ext2fs_u32_list_test(ext2_u32_list bb, blk_t blk);
699 extern errcode_t ext2fs_u32_list_iterate_begin(ext2_u32_list bb,
700 ext2_u32_iterate *ret);
701 extern int ext2fs_u32_list_iterate(ext2_u32_iterate iter, blk_t *blk);
702 extern void ext2fs_u32_list_iterate_end(ext2_u32_iterate iter);
703 extern errcode_t ext2fs_u32_copy(ext2_u32_list src, ext2_u32_list *dest);
704 extern int ext2fs_u32_list_equal(ext2_u32_list bb1, ext2_u32_list bb2);
706 extern errcode_t ext2fs_badblocks_list_create(ext2_badblocks_list *ret,
708 extern errcode_t ext2fs_badblocks_list_add(ext2_badblocks_list bb,
710 extern int ext2fs_badblocks_list_test(ext2_badblocks_list bb,
712 extern int ext2fs_u32_list_del(ext2_u32_list bb, __u32 blk);
713 extern void ext2fs_badblocks_list_del(ext2_u32_list bb, __u32 blk);
715 ext2fs_badblocks_list_iterate_begin(ext2_badblocks_list bb,
716 ext2_badblocks_iterate *ret);
717 extern int ext2fs_badblocks_list_iterate(ext2_badblocks_iterate iter,
719 extern void ext2fs_badblocks_list_iterate_end(ext2_badblocks_iterate iter);
720 extern errcode_t ext2fs_badblocks_copy(ext2_badblocks_list src,
721 ext2_badblocks_list *dest);
722 extern int ext2fs_badblocks_equal(ext2_badblocks_list bb1,
723 ext2_badblocks_list bb2);
724 extern int ext2fs_u32_list_count(ext2_u32_list bb);
727 extern errcode_t badblocks_list_create(badblocks_list *ret, int size);
728 extern errcode_t badblocks_list_add(badblocks_list bb, blk_t blk);
729 extern int badblocks_list_test(badblocks_list bb, blk_t blk);
730 extern errcode_t badblocks_list_iterate_begin(badblocks_list bb,
731 badblocks_iterate *ret);
732 extern int badblocks_list_iterate(badblocks_iterate iter, blk_t *blk);
733 extern void badblocks_list_iterate_end(badblocks_iterate iter);
734 extern void badblocks_list_free(badblocks_list bb);
737 extern errcode_t ext2fs_update_bb_inode(ext2_filsys fs,
738 ext2_badblocks_list bb_list);
741 extern void ext2fs_free_block_bitmap(ext2fs_block_bitmap bitmap);
742 extern void ext2fs_free_inode_bitmap(ext2fs_inode_bitmap bitmap);
743 extern errcode_t ext2fs_copy_bitmap(ext2fs_generic_bitmap src,
744 ext2fs_generic_bitmap *dest);
745 extern errcode_t ext2fs_write_inode_bitmap(ext2_filsys fs);
746 extern errcode_t ext2fs_write_block_bitmap (ext2_filsys fs);
747 extern errcode_t ext2fs_read_inode_bitmap (ext2_filsys fs);
748 extern errcode_t ext2fs_read_block_bitmap(ext2_filsys fs);
749 extern errcode_t ext2fs_allocate_block_bitmap(ext2_filsys fs,
751 ext2fs_block_bitmap *ret);
752 extern errcode_t ext2fs_allocate_subcluster_bitmap(ext2_filsys fs,
754 ext2fs_block_bitmap *ret);
755 extern int ext2fs_get_bitmap_granularity(ext2fs_block_bitmap bitmap);
756 extern errcode_t ext2fs_allocate_inode_bitmap(ext2_filsys fs,
758 ext2fs_inode_bitmap *ret);
759 extern errcode_t ext2fs_fudge_inode_bitmap_end(ext2fs_inode_bitmap bitmap,
760 ext2_ino_t end, ext2_ino_t *oend);
761 extern errcode_t ext2fs_fudge_block_bitmap_end(ext2fs_block_bitmap bitmap,
762 blk_t end, blk_t *oend);
763 extern errcode_t ext2fs_fudge_block_bitmap_end2(ext2fs_block_bitmap bitmap,
764 blk64_t end, blk64_t *oend);
765 extern void ext2fs_clear_inode_bitmap(ext2fs_inode_bitmap bitmap);
766 extern void ext2fs_clear_block_bitmap(ext2fs_block_bitmap bitmap);
767 extern errcode_t ext2fs_read_bitmaps(ext2_filsys fs);
768 extern errcode_t ext2fs_write_bitmaps(ext2_filsys fs);
769 extern errcode_t ext2fs_resize_inode_bitmap(__u32 new_end, __u32 new_real_end,
770 ext2fs_inode_bitmap bmap);
771 extern errcode_t ext2fs_resize_inode_bitmap2(__u64 new_end,
773 ext2fs_inode_bitmap bmap);
774 extern errcode_t ext2fs_resize_block_bitmap(__u32 new_end, __u32 new_real_end,
775 ext2fs_block_bitmap bmap);
776 extern errcode_t ext2fs_resize_block_bitmap2(__u64 new_end,
778 ext2fs_block_bitmap bmap);
779 extern errcode_t ext2fs_compare_block_bitmap(ext2fs_block_bitmap bm1,
780 ext2fs_block_bitmap bm2);
781 extern errcode_t ext2fs_compare_inode_bitmap(ext2fs_inode_bitmap bm1,
782 ext2fs_inode_bitmap bm2);
783 extern errcode_t ext2fs_set_inode_bitmap_range(ext2fs_inode_bitmap bmap,
784 ext2_ino_t start, unsigned int num,
786 extern errcode_t ext2fs_set_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
787 __u64 start, size_t num,
789 extern errcode_t ext2fs_get_inode_bitmap_range(ext2fs_inode_bitmap bmap,
790 ext2_ino_t start, unsigned int num,
792 extern errcode_t ext2fs_get_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
793 __u64 start, size_t num,
795 extern errcode_t ext2fs_set_block_bitmap_range(ext2fs_block_bitmap bmap,
796 blk_t start, unsigned int num,
798 extern errcode_t ext2fs_set_block_bitmap_range2(ext2fs_block_bitmap bmap,
799 blk64_t start, size_t num,
801 extern errcode_t ext2fs_get_block_bitmap_range(ext2fs_block_bitmap bmap,
802 blk_t start, unsigned int num,
804 extern errcode_t ext2fs_get_block_bitmap_range2(ext2fs_block_bitmap bmap,
805 blk64_t start, size_t num,
809 extern dgrp_t ext2fs_group_of_blk2(ext2_filsys fs, blk64_t);
810 extern blk64_t ext2fs_group_first_block2(ext2_filsys fs, dgrp_t group);
811 extern blk64_t ext2fs_group_last_block2(ext2_filsys fs, dgrp_t group);
812 extern int ext2fs_group_blocks_count(ext2_filsys fs, dgrp_t group);
813 extern blk64_t ext2fs_inode_data_blocks2(ext2_filsys fs,
814 struct ext2_inode *inode);
815 extern blk64_t ext2fs_inode_i_blocks(ext2_filsys fs,
816 struct ext2_inode *inode);
817 extern blk64_t ext2fs_blocks_count(struct ext2_super_block *super);
818 extern void ext2fs_blocks_count_set(struct ext2_super_block *super,
820 extern void ext2fs_blocks_count_add(struct ext2_super_block *super,
822 extern blk64_t ext2fs_r_blocks_count(struct ext2_super_block *super);
823 extern void ext2fs_r_blocks_count_set(struct ext2_super_block *super,
825 extern void ext2fs_r_blocks_count_add(struct ext2_super_block *super,
827 extern blk64_t ext2fs_free_blocks_count(struct ext2_super_block *super);
828 extern void ext2fs_free_blocks_count_set(struct ext2_super_block *super,
830 extern void ext2fs_free_blocks_count_add(struct ext2_super_block *super,
832 /* Block group descriptor accessor functions */
833 extern struct ext2_group_desc *ext2fs_group_desc(ext2_filsys fs,
834 struct opaque_ext2_group_desc *gdp,
836 extern blk64_t ext2fs_block_bitmap_loc(ext2_filsys fs, dgrp_t group);
837 extern void ext2fs_block_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
839 extern blk64_t ext2fs_inode_bitmap_loc(ext2_filsys fs, dgrp_t group);
840 extern void ext2fs_inode_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
842 extern blk64_t ext2fs_inode_table_loc(ext2_filsys fs, dgrp_t group);
843 extern void ext2fs_inode_table_loc_set(ext2_filsys fs, dgrp_t group,
845 extern __u32 ext2fs_bg_free_blocks_count(ext2_filsys fs, dgrp_t group);
846 extern void ext2fs_bg_free_blocks_count_set(ext2_filsys fs, dgrp_t group,
848 extern __u32 ext2fs_bg_free_inodes_count(ext2_filsys fs, dgrp_t group);
849 extern void ext2fs_bg_free_inodes_count_set(ext2_filsys fs, dgrp_t group,
851 extern __u32 ext2fs_bg_used_dirs_count(ext2_filsys fs, dgrp_t group);
852 extern void ext2fs_bg_used_dirs_count_set(ext2_filsys fs, dgrp_t group,
854 extern __u32 ext2fs_bg_itable_unused(ext2_filsys fs, dgrp_t group);
855 extern void ext2fs_bg_itable_unused_set(ext2_filsys fs, dgrp_t group,
857 extern __u16 ext2fs_bg_flags(ext2_filsys fs, dgrp_t group);
858 extern void ext2fs_bg_flags_zap(ext2_filsys fs, dgrp_t group);
859 extern int ext2fs_bg_flags_test(ext2_filsys fs, dgrp_t group, __u16 bg_flag);
860 extern void ext2fs_bg_flags_set(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
861 extern void ext2fs_bg_flags_clear(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
862 extern __u16 ext2fs_bg_checksum(ext2_filsys fs, dgrp_t group);
863 extern void ext2fs_bg_checksum_set(ext2_filsys fs, dgrp_t group, __u16 checksum);
864 extern blk64_t ext2fs_file_acl_block(ext2_filsys fs,
865 const struct ext2_inode *inode);
866 extern void ext2fs_file_acl_block_set(ext2_filsys fs,
867 struct ext2_inode *inode, blk64_t blk);
870 extern errcode_t ext2fs_block_iterate(ext2_filsys fs,
874 int (*func)(ext2_filsys fs,
879 errcode_t ext2fs_block_iterate2(ext2_filsys fs,
883 int (*func)(ext2_filsys fs,
885 e2_blkcnt_t blockcnt,
890 errcode_t ext2fs_block_iterate3(ext2_filsys fs,
894 int (*func)(ext2_filsys fs,
896 e2_blkcnt_t blockcnt,
903 extern errcode_t ext2fs_bmap(ext2_filsys fs, ext2_ino_t ino,
904 struct ext2_inode *inode,
905 char *block_buf, int bmap_flags,
906 blk_t block, blk_t *phys_blk);
907 extern errcode_t ext2fs_bmap2(ext2_filsys fs, ext2_ino_t ino,
908 struct ext2_inode *inode,
909 char *block_buf, int bmap_flags, blk64_t block,
910 int *ret_flags, blk64_t *phys_blk);
914 extern errcode_t ext2fs_move_blocks(ext2_filsys fs,
915 ext2fs_block_bitmap reserve,
916 ext2fs_block_bitmap alloc_map,
921 extern errcode_t ext2fs_check_desc(ext2_filsys fs);
924 extern errcode_t ext2fs_close(ext2_filsys fs);
925 extern errcode_t ext2fs_close2(ext2_filsys fs, int flags);
926 extern errcode_t ext2fs_flush(ext2_filsys fs);
927 extern errcode_t ext2fs_flush2(ext2_filsys fs, int flags);
928 extern int ext2fs_bg_has_super(ext2_filsys fs, int group_block);
929 extern errcode_t ext2fs_super_and_bgd_loc2(ext2_filsys fs,
931 blk64_t *ret_super_blk,
932 blk64_t *ret_old_desc_blk,
933 blk64_t *ret_new_desc_blk,
934 blk_t *ret_used_blks);
935 extern int ext2fs_super_and_bgd_loc(ext2_filsys fs,
937 blk_t *ret_super_blk,
938 blk_t *ret_old_desc_blk,
939 blk_t *ret_new_desc_blk,
941 extern void ext2fs_update_dynamic_rev(ext2_filsys fs);
944 extern __u32 ext2fs_crc32c_be(__u32 crc, unsigned char const *p, size_t len);
945 extern __u32 ext2fs_crc32c_le(__u32 crc, unsigned char const *p, size_t len);
948 extern void ext2fs_group_desc_csum_set(ext2_filsys fs, dgrp_t group);
949 extern int ext2fs_group_desc_csum_verify(ext2_filsys fs, dgrp_t group);
950 extern errcode_t ext2fs_set_gdt_csum(ext2_filsys fs);
951 extern __u16 ext2fs_group_desc_csum(ext2_filsys fs, dgrp_t group);
955 extern errcode_t ext2fs_get_num_dirs(ext2_filsys fs, ext2_ino_t *ret_num_dirs);
956 extern errcode_t ext2fs_init_dblist(ext2_filsys fs, ext2_dblist *ret_dblist);
957 extern errcode_t ext2fs_add_dir_block(ext2_dblist dblist, ext2_ino_t ino,
958 blk_t blk, int blockcnt);
959 extern errcode_t ext2fs_add_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
960 blk64_t blk, e2_blkcnt_t blockcnt);
961 extern void ext2fs_dblist_sort(ext2_dblist dblist,
962 EXT2_QSORT_TYPE (*sortfunc)(const void *,
964 extern void ext2fs_dblist_sort2(ext2_dblist dblist,
965 EXT2_QSORT_TYPE (*sortfunc)(const void *,
967 extern errcode_t ext2fs_dblist_iterate(ext2_dblist dblist,
968 int (*func)(ext2_filsys fs, struct ext2_db_entry *db_info,
971 extern errcode_t ext2fs_dblist_iterate2(ext2_dblist dblist,
972 int (*func)(ext2_filsys fs, struct ext2_db_entry2 *db_info,
975 extern errcode_t ext2fs_set_dir_block(ext2_dblist dblist, ext2_ino_t ino,
976 blk_t blk, int blockcnt);
977 extern errcode_t ext2fs_set_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
978 blk64_t blk, e2_blkcnt_t blockcnt);
979 extern errcode_t ext2fs_copy_dblist(ext2_dblist src,
981 extern int ext2fs_dblist_count(ext2_dblist dblist);
982 extern blk64_t ext2fs_dblist_count2(ext2_dblist dblist);
983 extern errcode_t ext2fs_dblist_get_last(ext2_dblist dblist,
984 struct ext2_db_entry **entry);
985 extern errcode_t ext2fs_dblist_get_last2(ext2_dblist dblist,
986 struct ext2_db_entry2 **entry);
987 extern errcode_t ext2fs_dblist_drop_last(ext2_dblist dblist);
991 ext2fs_dblist_dir_iterate(ext2_dblist dblist,
994 int (*func)(ext2_ino_t dir,
996 struct ext2_dir_entry *dirent,
1004 extern errcode_t ext2fs_read_dir_block(ext2_filsys fs, blk_t block,
1006 extern errcode_t ext2fs_read_dir_block2(ext2_filsys fs, blk_t block,
1007 void *buf, int flags);
1008 extern errcode_t ext2fs_read_dir_block3(ext2_filsys fs, blk64_t block,
1009 void *buf, int flags);
1010 extern errcode_t ext2fs_write_dir_block(ext2_filsys fs, blk_t block,
1012 extern errcode_t ext2fs_write_dir_block2(ext2_filsys fs, blk_t block,
1013 void *buf, int flags);
1014 extern errcode_t ext2fs_write_dir_block3(ext2_filsys fs, blk64_t block,
1015 void *buf, int flags);
1018 extern errcode_t ext2fs_dirhash(int version, const char *name, int len,
1020 ext2_dirhash_t *ret_hash,
1021 ext2_dirhash_t *ret_minor_hash);
1025 extern errcode_t ext2fs_get_rec_len(ext2_filsys fs,
1026 struct ext2_dir_entry *dirent,
1027 unsigned int *rec_len);
1028 extern errcode_t ext2fs_set_rec_len(ext2_filsys fs,
1030 struct ext2_dir_entry *dirent);
1031 extern errcode_t ext2fs_dir_iterate(ext2_filsys fs,
1035 int (*func)(struct ext2_dir_entry *dirent,
1041 extern errcode_t ext2fs_dir_iterate2(ext2_filsys fs,
1045 int (*func)(ext2_ino_t dir,
1047 struct ext2_dir_entry *dirent,
1055 extern errcode_t ext2fs_dup_handle(ext2_filsys src, ext2_filsys *dest);
1058 extern errcode_t ext2fs_expand_dir(ext2_filsys fs, ext2_ino_t dir);
1061 extern __u32 ext2fs_ext_attr_hash_entry(struct ext2_ext_attr_entry *entry,
1063 extern errcode_t ext2fs_read_ext_attr(ext2_filsys fs, blk_t block, void *buf);
1064 extern errcode_t ext2fs_read_ext_attr2(ext2_filsys fs, blk64_t block,
1066 extern errcode_t ext2fs_write_ext_attr(ext2_filsys fs, blk_t block,
1068 extern errcode_t ext2fs_write_ext_attr2(ext2_filsys fs, blk64_t block,
1070 extern errcode_t ext2fs_adjust_ea_refcount(ext2_filsys fs, blk_t blk,
1072 int adjust, __u32 *newcount);
1073 extern errcode_t ext2fs_adjust_ea_refcount2(ext2_filsys fs, blk64_t blk,
1075 int adjust, __u32 *newcount);
1078 extern errcode_t ext2fs_extent_header_verify(void *ptr, int size);
1079 extern errcode_t ext2fs_extent_open(ext2_filsys fs, ext2_ino_t ino,
1080 ext2_extent_handle_t *handle);
1081 extern errcode_t ext2fs_extent_open2(ext2_filsys fs, ext2_ino_t ino,
1082 struct ext2_inode *inode,
1083 ext2_extent_handle_t *ret_handle);
1084 extern void ext2fs_extent_free(ext2_extent_handle_t handle);
1085 extern errcode_t ext2fs_extent_get(ext2_extent_handle_t handle,
1086 int flags, struct ext2fs_extent *extent);
1087 extern errcode_t ext2fs_extent_replace(ext2_extent_handle_t handle, int flags,
1088 struct ext2fs_extent *extent);
1089 extern errcode_t ext2fs_extent_insert(ext2_extent_handle_t handle, int flags,
1090 struct ext2fs_extent *extent);
1091 extern errcode_t ext2fs_extent_set_bmap(ext2_extent_handle_t handle,
1092 blk64_t logical, blk64_t physical,
1094 extern errcode_t ext2fs_extent_delete(ext2_extent_handle_t handle, int flags);
1095 extern errcode_t ext2fs_extent_get_info(ext2_extent_handle_t handle,
1096 struct ext2_extent_info *info);
1097 extern errcode_t ext2fs_extent_goto(ext2_extent_handle_t handle,
1101 extern errcode_t ext2fs_file_open2(ext2_filsys fs, ext2_ino_t ino,
1102 struct ext2_inode *inode,
1103 int flags, ext2_file_t *ret);
1104 extern errcode_t ext2fs_file_open(ext2_filsys fs, ext2_ino_t ino,
1105 int flags, ext2_file_t *ret);
1106 extern ext2_filsys ext2fs_file_get_fs(ext2_file_t file);
1107 struct ext2_inode *ext2fs_file_get_inode(ext2_file_t file);
1108 extern ext2_ino_t ext2fs_file_get_inode_num(ext2_file_t file);
1109 extern errcode_t ext2fs_file_close(ext2_file_t file);
1110 extern errcode_t ext2fs_file_flush(ext2_file_t file);
1111 extern errcode_t ext2fs_file_read(ext2_file_t file, void *buf,
1112 unsigned int wanted, unsigned int *got);
1113 extern errcode_t ext2fs_file_write(ext2_file_t file, const void *buf,
1114 unsigned int nbytes, unsigned int *written);
1115 extern errcode_t ext2fs_file_llseek(ext2_file_t file, __u64 offset,
1116 int whence, __u64 *ret_pos);
1117 extern errcode_t ext2fs_file_lseek(ext2_file_t file, ext2_off_t offset,
1118 int whence, ext2_off_t *ret_pos);
1119 errcode_t ext2fs_file_get_lsize(ext2_file_t file, __u64 *ret_size);
1120 extern ext2_off_t ext2fs_file_get_size(ext2_file_t file);
1121 extern errcode_t ext2fs_file_set_size(ext2_file_t file, ext2_off_t size);
1122 extern errcode_t ext2fs_file_set_size2(ext2_file_t file, ext2_off64_t size);
1125 extern char *ext2fs_find_block_device(dev_t device);
1128 extern errcode_t ext2fs_sync_device(int fd, int flushb);
1131 extern void ext2fs_free(ext2_filsys fs);
1132 extern void ext2fs_free_dblist(ext2_dblist dblist);
1133 extern void ext2fs_badblocks_list_free(ext2_badblocks_list bb);
1134 extern void ext2fs_u32_list_free(ext2_u32_list bb);
1137 extern void ext2fs_free_generic_bitmap(ext2fs_inode_bitmap bitmap);
1138 extern errcode_t ext2fs_make_generic_bitmap(errcode_t magic, ext2_filsys fs,
1139 __u32 start, __u32 end,
1141 const char *descr, char *init_map,
1142 ext2fs_generic_bitmap *ret);
1143 extern errcode_t ext2fs_allocate_generic_bitmap(__u32 start,
1147 ext2fs_generic_bitmap *ret);
1148 extern errcode_t ext2fs_copy_generic_bitmap(ext2fs_generic_bitmap src,
1149 ext2fs_generic_bitmap *dest);
1150 extern void ext2fs_clear_generic_bitmap(ext2fs_generic_bitmap bitmap);
1151 extern errcode_t ext2fs_fudge_generic_bitmap_end(ext2fs_inode_bitmap bitmap,
1156 extern void ext2fs_set_generic_bitmap_padding(ext2fs_generic_bitmap map);
1157 extern errcode_t ext2fs_resize_generic_bitmap(errcode_t magic,
1160 ext2fs_generic_bitmap bmap);
1161 extern errcode_t ext2fs_compare_generic_bitmap(errcode_t magic, errcode_t neq,
1162 ext2fs_generic_bitmap bm1,
1163 ext2fs_generic_bitmap bm2);
1164 extern errcode_t ext2fs_get_generic_bitmap_range(ext2fs_generic_bitmap bmap,
1166 __u32 start, __u32 num,
1168 extern errcode_t ext2fs_set_generic_bitmap_range(ext2fs_generic_bitmap bmap,
1170 __u32 start, __u32 num,
1172 extern errcode_t ext2fs_find_first_zero_generic_bitmap(ext2fs_generic_bitmap bitmap,
1173 __u32 start, __u32 end,
1176 /* gen_bitmap64.c */
1178 /* Generate and print bitmap usage statistics */
1181 void ext2fs_free_generic_bmap(ext2fs_generic_bitmap bmap);
1182 errcode_t ext2fs_alloc_generic_bmap(ext2_filsys fs, errcode_t magic,
1183 int type, __u64 start, __u64 end,
1186 ext2fs_generic_bitmap *ret);
1187 errcode_t ext2fs_copy_generic_bmap(ext2fs_generic_bitmap src,
1188 ext2fs_generic_bitmap *dest);
1189 void ext2fs_clear_generic_bmap(ext2fs_generic_bitmap bitmap);
1190 errcode_t ext2fs_fudge_generic_bmap_end(ext2fs_generic_bitmap bitmap,
1192 __u64 end, __u64 *oend);
1193 void ext2fs_set_generic_bmap_padding(ext2fs_generic_bitmap bmap);
1194 errcode_t ext2fs_resize_generic_bmap(ext2fs_generic_bitmap bmap,
1196 __u64 new_real_end);
1197 errcode_t ext2fs_compare_generic_bmap(errcode_t neq,
1198 ext2fs_generic_bitmap bm1,
1199 ext2fs_generic_bitmap bm2);
1200 errcode_t ext2fs_get_generic_bmap_range(ext2fs_generic_bitmap bmap,
1201 __u64 start, unsigned int num,
1203 errcode_t ext2fs_set_generic_bmap_range(ext2fs_generic_bitmap bmap,
1204 __u64 start, unsigned int num,
1206 errcode_t ext2fs_convert_subcluster_bitmap(ext2_filsys fs,
1207 ext2fs_block_bitmap *bitmap);
1210 extern errcode_t ext2fs_get_device_size(const char *file, int blocksize,
1212 extern errcode_t ext2fs_get_device_size2(const char *file, int blocksize,
1213 blk64_t *retblocks);
1216 extern int ext2fs_get_dio_alignment(int fd);
1217 errcode_t ext2fs_get_device_sectsize(const char *file, int *sectsize);
1218 errcode_t ext2fs_get_device_phys_sectsize(const char *file, int *sectsize);
1221 errcode_t ext2fs_iblk_add_blocks(ext2_filsys fs, struct ext2_inode *inode,
1222 blk64_t num_blocks);
1223 errcode_t ext2fs_iblk_sub_blocks(ext2_filsys fs, struct ext2_inode *inode,
1224 blk64_t num_blocks);
1225 errcode_t ext2fs_iblk_set(ext2_filsys fs, struct ext2_inode *inode, blk64_t b);
1228 extern errcode_t ext2fs_image_inode_write(ext2_filsys fs, int fd, int flags);
1229 extern errcode_t ext2fs_image_inode_read(ext2_filsys fs, int fd, int flags);
1230 extern errcode_t ext2fs_image_super_write(ext2_filsys fs, int fd, int flags);
1231 extern errcode_t ext2fs_image_super_read(ext2_filsys fs, int fd, int flags);
1232 extern errcode_t ext2fs_image_bitmap_write(ext2_filsys fs, int fd, int flags);
1233 extern errcode_t ext2fs_image_bitmap_read(ext2_filsys fs, int fd, int flags);
1236 errcode_t ext2fs_read_ind_block(ext2_filsys fs, blk_t blk, void *buf);
1237 errcode_t ext2fs_write_ind_block(ext2_filsys fs, blk_t blk, void *buf);
1240 extern errcode_t ext2fs_initialize(const char *name, int flags,
1241 struct ext2_super_block *param,
1242 io_manager manager, ext2_filsys *ret_fs);
1245 extern void ext2fs_free_icount(ext2_icount_t icount);
1246 extern errcode_t ext2fs_create_icount_tdb(ext2_filsys fs, char *tdb_dir,
1247 int flags, ext2_icount_t *ret);
1248 extern errcode_t ext2fs_create_icount2(ext2_filsys fs, int flags,
1250 ext2_icount_t hint, ext2_icount_t *ret);
1251 extern errcode_t ext2fs_create_icount(ext2_filsys fs, int flags,
1253 ext2_icount_t *ret);
1254 extern errcode_t ext2fs_icount_fetch(ext2_icount_t icount, ext2_ino_t ino,
1256 extern errcode_t ext2fs_icount_increment(ext2_icount_t icount, ext2_ino_t ino,
1258 extern errcode_t ext2fs_icount_decrement(ext2_icount_t icount, ext2_ino_t ino,
1260 extern errcode_t ext2fs_icount_store(ext2_icount_t icount, ext2_ino_t ino,
1262 extern ext2_ino_t ext2fs_get_icount_size(ext2_icount_t icount);
1263 errcode_t ext2fs_icount_validate(ext2_icount_t icount, FILE *);
1266 extern errcode_t ext2fs_flush_icache(ext2_filsys fs);
1267 extern errcode_t ext2fs_get_next_inode_full(ext2_inode_scan scan,
1269 struct ext2_inode *inode,
1271 extern errcode_t ext2fs_open_inode_scan(ext2_filsys fs, int buffer_blocks,
1272 ext2_inode_scan *ret_scan);
1273 extern void ext2fs_close_inode_scan(ext2_inode_scan scan);
1274 extern errcode_t ext2fs_get_next_inode(ext2_inode_scan scan, ext2_ino_t *ino,
1275 struct ext2_inode *inode);
1276 extern errcode_t ext2fs_inode_scan_goto_blockgroup(ext2_inode_scan scan,
1278 extern void ext2fs_set_inode_callback
1279 (ext2_inode_scan scan,
1280 errcode_t (*done_group)(ext2_filsys fs,
1281 ext2_inode_scan scan,
1284 void *done_group_data);
1285 extern int ext2fs_inode_scan_flags(ext2_inode_scan scan, int set_flags,
1287 extern errcode_t ext2fs_read_inode_full(ext2_filsys fs, ext2_ino_t ino,
1288 struct ext2_inode * inode,
1290 extern errcode_t ext2fs_read_inode (ext2_filsys fs, ext2_ino_t ino,
1291 struct ext2_inode * inode);
1292 extern errcode_t ext2fs_write_inode_full(ext2_filsys fs, ext2_ino_t ino,
1293 struct ext2_inode * inode,
1295 extern errcode_t ext2fs_write_inode(ext2_filsys fs, ext2_ino_t ino,
1296 struct ext2_inode * inode);
1297 extern errcode_t ext2fs_write_new_inode(ext2_filsys fs, ext2_ino_t ino,
1298 struct ext2_inode * inode);
1299 extern errcode_t ext2fs_get_blocks(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
1300 extern errcode_t ext2fs_check_directory(ext2_filsys fs, ext2_ino_t ino);
1303 extern io_manager inode_io_manager;
1304 extern errcode_t ext2fs_inode_io_intern(ext2_filsys fs, ext2_ino_t ino,
1306 extern errcode_t ext2fs_inode_io_intern2(ext2_filsys fs, ext2_ino_t ino,
1307 struct ext2_inode *inode,
1311 extern errcode_t ext2fs_check_if_mounted(const char *file, int *mount_flags);
1312 extern errcode_t ext2fs_check_mount_point(const char *device, int *mount_flags,
1313 char *mtpt, int mtlen);
1316 extern errcode_t ext2fs_punch(ext2_filsys fs, ext2_ino_t ino,
1317 struct ext2_inode *inode,
1318 char *block_buf, blk64_t start,
1322 extern errcode_t ext2fs_lookup(ext2_filsys fs, ext2_ino_t dir, const char *name,
1323 int namelen, char *buf, ext2_ino_t *inode);
1324 extern errcode_t ext2fs_namei(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1325 const char *name, ext2_ino_t *inode);
1326 errcode_t ext2fs_namei_follow(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1327 const char *name, ext2_ino_t *inode);
1328 extern errcode_t ext2fs_follow_link(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1329 ext2_ino_t inode, ext2_ino_t *res_inode);
1332 int ext2fs_native_flag(void);
1335 extern errcode_t ext2fs_new_dir_block(ext2_filsys fs, ext2_ino_t dir_ino,
1336 ext2_ino_t parent_ino, char **block);
1339 extern errcode_t ext2fs_mkdir(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t inum,
1343 extern errcode_t ext2fs_zero_blocks(ext2_filsys fs, blk_t blk, int num,
1344 blk_t *ret_blk, int *ret_count);
1345 extern errcode_t ext2fs_zero_blocks2(ext2_filsys fs, blk64_t blk, int num,
1346 blk64_t *ret_blk, int *ret_count);
1347 extern errcode_t ext2fs_create_journal_superblock(ext2_filsys fs,
1348 __u32 num_blocks, int flags,
1350 extern errcode_t ext2fs_add_journal_device(ext2_filsys fs,
1351 ext2_filsys journal_dev);
1352 extern errcode_t ext2fs_add_journal_inode(ext2_filsys fs, blk_t num_blocks,
1354 extern int ext2fs_default_journal_size(__u64 num_blocks);
1357 extern errcode_t ext2fs_open(const char *name, int flags, int superblock,
1358 unsigned int block_size, io_manager manager,
1359 ext2_filsys *ret_fs);
1360 extern errcode_t ext2fs_open2(const char *name, const char *io_options,
1361 int flags, int superblock,
1362 unsigned int block_size, io_manager manager,
1363 ext2_filsys *ret_fs);
1364 extern blk64_t ext2fs_descriptor_block_loc2(ext2_filsys fs,
1365 blk64_t group_block, dgrp_t i);
1366 extern blk_t ext2fs_descriptor_block_loc(ext2_filsys fs, blk_t group_block,
1368 errcode_t ext2fs_get_data_io(ext2_filsys fs, io_channel *old_io);
1369 errcode_t ext2fs_set_data_io(ext2_filsys fs, io_channel new_io);
1370 errcode_t ext2fs_rewrite_to_io(ext2_filsys fs, io_channel new_io);
1372 /* get_pathname.c */
1373 extern errcode_t ext2fs_get_pathname(ext2_filsys fs, ext2_ino_t dir, ext2_ino_t ino,
1377 errcode_t ext2fs_link(ext2_filsys fs, ext2_ino_t dir, const char *name,
1378 ext2_ino_t ino, int flags);
1379 errcode_t ext2fs_unlink(ext2_filsys fs, ext2_ino_t dir, const char *name,
1380 ext2_ino_t ino, int flags);
1383 errcode_t ext2fs_mmp_read(ext2_filsys fs, blk64_t mmp_blk, void *buf);
1384 errcode_t ext2fs_mmp_write(ext2_filsys fs, blk64_t mmp_blk, void *buf);
1385 errcode_t ext2fs_mmp_clear(ext2_filsys fs);
1386 errcode_t ext2fs_mmp_init(ext2_filsys fs);
1387 errcode_t ext2fs_mmp_start(ext2_filsys fs);
1388 errcode_t ext2fs_mmp_update(ext2_filsys fs);
1389 errcode_t ext2fs_mmp_stop(ext2_filsys fs);
1390 unsigned ext2fs_mmp_new_seq(void);
1393 extern errcode_t ext2fs_read_bb_inode(ext2_filsys fs,
1394 ext2_badblocks_list *bb_list);
1396 /* read_bb_file.c */
1397 extern errcode_t ext2fs_read_bb_FILE2(ext2_filsys fs, FILE *f,
1398 ext2_badblocks_list *bb_list,
1400 void (*invalid)(ext2_filsys fs,
1404 extern errcode_t ext2fs_read_bb_FILE(ext2_filsys fs, FILE *f,
1405 ext2_badblocks_list *bb_list,
1406 void (*invalid)(ext2_filsys fs,
1410 extern errcode_t ext2fs_create_resize_inode(ext2_filsys fs);
1413 extern void ext2fs_swap_ext_attr(char *to, char *from, int bufsize,
1415 extern void ext2fs_swap_ext_attr_header(struct ext2_ext_attr_header *to_header,
1416 struct ext2_ext_attr_header *from_hdr);
1417 extern void ext2fs_swap_ext_attr_entry(struct ext2_ext_attr_entry *to_entry,
1418 struct ext2_ext_attr_entry *from_entry);
1419 extern void ext2fs_swap_super(struct ext2_super_block * super);
1420 extern void ext2fs_swap_group_desc(struct ext2_group_desc *gdp);
1421 extern void ext2fs_swap_group_desc2(ext2_filsys, struct ext2_group_desc *gdp);
1422 extern void ext2fs_swap_inode_full(ext2_filsys fs, struct ext2_inode_large *t,
1423 struct ext2_inode_large *f, int hostorder,
1425 extern void ext2fs_swap_inode(ext2_filsys fs,struct ext2_inode *t,
1426 struct ext2_inode *f, int hostorder);
1427 extern void ext2fs_swap_mmp(struct mmp_struct *mmp);
1430 extern int ext2fs_inode_has_valid_blocks(struct ext2_inode *inode);
1431 extern int ext2fs_inode_has_valid_blocks2(ext2_filsys fs,
1432 struct ext2_inode *inode);
1435 extern int ext2fs_parse_version_string(const char *ver_string);
1436 extern int ext2fs_get_library_version(const char **ver_string,
1437 const char **date_string);
1439 /* write_bb_file.c */
1440 extern errcode_t ext2fs_write_bb_FILE(ext2_badblocks_list bb_list,
1445 /* inline functions */
1446 extern errcode_t ext2fs_get_mem(unsigned long size, void *ptr);
1447 extern errcode_t ext2fs_get_memalign(unsigned long size,
1448 unsigned long align, void *ptr);
1449 extern errcode_t ext2fs_get_memzero(unsigned long size, void *ptr);
1450 extern errcode_t ext2fs_get_array(unsigned long count,
1451 unsigned long size, void *ptr);
1452 extern errcode_t ext2fs_get_arrayzero(unsigned long count,
1453 unsigned long size, void *ptr);
1454 extern errcode_t ext2fs_free_mem(void *ptr);
1455 extern errcode_t ext2fs_resize_mem(unsigned long old_size,
1456 unsigned long size, void *ptr);
1457 extern void ext2fs_mark_super_dirty(ext2_filsys fs);
1458 extern void ext2fs_mark_changed(ext2_filsys fs);
1459 extern int ext2fs_test_changed(ext2_filsys fs);
1460 extern void ext2fs_mark_valid(ext2_filsys fs);
1461 extern void ext2fs_unmark_valid(ext2_filsys fs);
1462 extern int ext2fs_test_valid(ext2_filsys fs);
1463 extern void ext2fs_mark_ib_dirty(ext2_filsys fs);
1464 extern void ext2fs_mark_bb_dirty(ext2_filsys fs);
1465 extern int ext2fs_test_ib_dirty(ext2_filsys fs);
1466 extern int ext2fs_test_bb_dirty(ext2_filsys fs);
1467 extern int ext2fs_group_of_blk(ext2_filsys fs, blk_t blk);
1468 extern int ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino);
1469 extern blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group);
1470 extern blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group);
1471 extern blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
1472 struct ext2_inode *inode);
1473 extern unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b);
1474 extern __u64 ext2fs_div64_ceil(__u64 a, __u64 b);
1475 extern int ext2fs_open_file(const char *pathname, int flags, mode_t mode);
1476 extern int ext2fs_stat(const char *path, ext2fs_struct_stat *buf);
1477 extern int ext2fs_fstat(int fd, ext2fs_struct_stat *buf);
1480 * The actual inlined functions definitions themselves...
1482 * If NO_INLINE_FUNCS is defined, then we won't try to do inline
1485 #if (defined(INCLUDE_INLINE_FUNCS) || !defined(NO_INLINE_FUNCS))
1486 #ifdef INCLUDE_INLINE_FUNCS
1487 #define _INLINE_ extern
1490 #define _INLINE_ extern __inline__
1491 #else /* For Watcom C */
1492 #define _INLINE_ extern inline
1496 #ifndef EXT2_CUSTOM_MEMORY_ROUTINES
1501 _INLINE_ errcode_t ext2fs_get_mem(unsigned long size, void *ptr)
1507 return EXT2_ET_NO_MEMORY;
1508 memcpy(ptr, &pp, sizeof (pp));
1512 _INLINE_ errcode_t ext2fs_get_memzero(unsigned long size, void *ptr)
1518 return EXT2_ET_NO_MEMORY;
1519 memset(pp, 0, size);
1520 memcpy(ptr, &pp, sizeof(pp));
1524 _INLINE_ errcode_t ext2fs_get_array(unsigned long count, unsigned long size, void *ptr)
1526 if (count && (-1UL)/count<size)
1527 return EXT2_ET_NO_MEMORY;
1528 return ext2fs_get_mem(count*size, ptr);
1531 _INLINE_ errcode_t ext2fs_get_arrayzero(unsigned long count,
1532 unsigned long size, void *ptr)
1536 if (count && (-1UL)/count<size)
1537 return EXT2_ET_NO_MEMORY;
1538 pp = calloc(count, size);
1540 return EXT2_ET_NO_MEMORY;
1541 memcpy(ptr, &pp, sizeof(pp));
1548 _INLINE_ errcode_t ext2fs_free_mem(void *ptr)
1552 memcpy(&p, ptr, sizeof(p));
1555 memcpy(ptr, &p, sizeof(p));
1562 _INLINE_ errcode_t ext2fs_resize_mem(unsigned long EXT2FS_ATTR((unused)) old_size,
1563 unsigned long size, void *ptr)
1567 /* Use "memcpy" for pointer assignments here to avoid problems
1568 * with C99 strict type aliasing rules. */
1569 memcpy(&p, ptr, sizeof(p));
1570 p = realloc(p, size);
1572 return EXT2_ET_NO_MEMORY;
1573 memcpy(ptr, &p, sizeof(p));
1576 #endif /* Custom memory routines */
1579 * Mark a filesystem superblock as dirty
1581 _INLINE_ void ext2fs_mark_super_dirty(ext2_filsys fs)
1583 fs->flags |= EXT2_FLAG_DIRTY | EXT2_FLAG_CHANGED;
1587 * Mark a filesystem as changed
1589 _INLINE_ void ext2fs_mark_changed(ext2_filsys fs)
1591 fs->flags |= EXT2_FLAG_CHANGED;
1595 * Check to see if a filesystem has changed
1597 _INLINE_ int ext2fs_test_changed(ext2_filsys fs)
1599 return (fs->flags & EXT2_FLAG_CHANGED);
1603 * Mark a filesystem as valid
1605 _INLINE_ void ext2fs_mark_valid(ext2_filsys fs)
1607 fs->flags |= EXT2_FLAG_VALID;
1611 * Mark a filesystem as NOT valid
1613 _INLINE_ void ext2fs_unmark_valid(ext2_filsys fs)
1615 fs->flags &= ~EXT2_FLAG_VALID;
1619 * Check to see if a filesystem is valid
1621 _INLINE_ int ext2fs_test_valid(ext2_filsys fs)
1623 return (fs->flags & EXT2_FLAG_VALID);
1627 * Mark the inode bitmap as dirty
1629 _INLINE_ void ext2fs_mark_ib_dirty(ext2_filsys fs)
1631 fs->flags |= EXT2_FLAG_IB_DIRTY | EXT2_FLAG_CHANGED;
1635 * Mark the block bitmap as dirty
1637 _INLINE_ void ext2fs_mark_bb_dirty(ext2_filsys fs)
1639 fs->flags |= EXT2_FLAG_BB_DIRTY | EXT2_FLAG_CHANGED;
1643 * Check to see if a filesystem's inode bitmap is dirty
1645 _INLINE_ int ext2fs_test_ib_dirty(ext2_filsys fs)
1647 return (fs->flags & EXT2_FLAG_IB_DIRTY);
1651 * Check to see if a filesystem's block bitmap is dirty
1653 _INLINE_ int ext2fs_test_bb_dirty(ext2_filsys fs)
1655 return (fs->flags & EXT2_FLAG_BB_DIRTY);
1659 * Return the group # of a block
1661 _INLINE_ int ext2fs_group_of_blk(ext2_filsys fs, blk_t blk)
1663 return ext2fs_group_of_blk2(fs, blk);
1666 * Return the group # of an inode number
1668 _INLINE_ int ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino)
1670 return (ino - 1) / fs->super->s_inodes_per_group;
1674 * Return the first block (inclusive) in a group
1676 _INLINE_ blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group)
1678 return ext2fs_group_first_block2(fs, group);
1682 * Return the last block (inclusive) in a group
1684 _INLINE_ blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group)
1686 return ext2fs_group_last_block2(fs, group);
1689 _INLINE_ blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
1690 struct ext2_inode *inode)
1692 return ext2fs_inode_data_blocks2(fs, inode);
1696 * This is an efficient, overflow safe way of calculating ceil((1.0 * a) / b)
1698 _INLINE_ unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b)
1702 return ((a - 1) / b) + 1;
1705 _INLINE_ __u64 ext2fs_div64_ceil(__u64 a, __u64 b)
1709 return ((a - 1) / b) + 1;
1712 _INLINE_ int ext2fs_open_file(const char *pathname, int flags, mode_t mode)
1715 #if defined(HAVE_OPEN64) && !defined(__OSX_AVAILABLE_BUT_DEPRECATED)
1716 return open64(pathname, flags, mode);
1718 return open64(pathname, flags);
1720 return open(pathname, flags, mode);
1722 return open(pathname, flags);
1726 _INLINE_ int ext2fs_stat(const char *path, ext2fs_struct_stat *buf)
1728 #if defined(HAVE_FSTAT64) && !defined(__OSX_AVAILABLE_BUT_DEPRECATED)
1729 return stat64(path, buf);
1731 return stat(path, buf);
1735 _INLINE_ int ext2fs_fstat(int fd, ext2fs_struct_stat *buf)
1737 #if defined(HAVE_FSTAT64) && !defined(__OSX_AVAILABLE_BUT_DEPRECATED)
1738 return fstat64(fd, buf);
1740 return fstat(fd, buf);
1751 #endif /* _EXT2FS_EXT2FS_H */