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
187 #define EXT2_FLAG_SKIP_MMP 0x100000
190 * Special flag in the ext2 inode i_flag field that means that this is
191 * a new inode. (So that ext2_write_inode() can clear extra fields.)
193 #define EXT2_NEW_INODE_FL 0x80000000
196 * Flags for mkjournal
198 #define EXT2_MKJOURNAL_V1_SUPER 0x0000001 /* create V1 superblock (deprecated) */
199 #define EXT2_MKJOURNAL_LAZYINIT 0x0000002 /* don't zero journal inode before use*/
200 #define EXT2_MKJOURNAL_NO_MNT_CHECK 0x0000004 /* don't check mount status */
202 struct opaque_ext2_group_desc;
204 struct struct_ext2_filsys {
209 struct ext2_super_block * super;
210 unsigned int blocksize;
212 dgrp_t group_desc_count;
213 unsigned long desc_blocks;
214 struct opaque_ext2_group_desc * group_desc;
215 unsigned int inode_blocks_per_group;
216 ext2fs_inode_bitmap inode_map;
217 ext2fs_block_bitmap block_map;
218 /* XXX FIXME-64: not 64-bit safe, but not used? */
219 errcode_t (*get_blocks)(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
220 errcode_t (*check_directory)(ext2_filsys fs, ext2_ino_t ino);
221 errcode_t (*write_bitmaps)(ext2_filsys fs);
222 errcode_t (*read_inode)(ext2_filsys fs, ext2_ino_t ino,
223 struct ext2_inode *inode);
224 errcode_t (*write_inode)(ext2_filsys fs, ext2_ino_t ino,
225 struct ext2_inode *inode);
226 ext2_badblocks_list badblocks;
228 __u32 stride; /* for mke2fs */
229 struct ext2_super_block * orig_super;
230 struct ext2_image_hdr * image_header;
233 int cluster_ratio_bits;
234 __u16 default_bitmap_type;
237 * Reserved for future expansion
242 * Reserved for the use of the calling application.
249 struct ext2_inode_cache *icache;
253 * More callback functions
255 errcode_t (*get_alloc_block)(ext2_filsys fs, blk64_t goal,
257 void (*block_alloc_stats)(ext2_filsys fs, blk64_t blk, int inuse);
260 * Buffers for Multiple mount protection(MMP) block.
267 * Time at which e2fsck last updated the MMP block.
269 long mmp_last_written;
272 #if EXT2_FLAT_INCLUDES
273 #include "e2_bitops.h"
275 #include <ext2fs/bitops.h>
279 * 64-bit bitmap backend types
281 #define EXT2FS_BMAP64_BITARRAY 1
282 #define EXT2FS_BMAP64_RBTREE 2
283 #define EXT2FS_BMAP64_AUTODIR 3
286 * Return flags for the block iterator functions
288 #define BLOCK_CHANGED 1
289 #define BLOCK_ABORT 2
290 #define BLOCK_ERROR 4
293 * Block interate flags
295 * BLOCK_FLAG_APPEND, or BLOCK_FLAG_HOLE, indicates that the interator
296 * function should be called on blocks where the block number is zero.
297 * This is used by ext2fs_expand_dir() to be able to add a new block
298 * to an inode. It can also be used for programs that want to be able
299 * to deal with files that contain "holes".
301 * BLOCK_FLAG_DEPTH_TRAVERSE indicates that the iterator function for
302 * the indirect, doubly indirect, etc. blocks should be called after
303 * all of the blocks containined in the indirect blocks are processed.
304 * This is useful if you are going to be deallocating blocks from an
307 * BLOCK_FLAG_DATA_ONLY indicates that the iterator function should be
308 * called for data blocks only.
310 * BLOCK_FLAG_READ_ONLY is a promise by the caller that it will not
311 * modify returned block number.
313 * BLOCK_FLAG_NO_LARGE is for internal use only. It informs
314 * ext2fs_block_iterate2 that large files won't be accepted.
316 #define BLOCK_FLAG_APPEND 1
317 #define BLOCK_FLAG_HOLE 1
318 #define BLOCK_FLAG_DEPTH_TRAVERSE 2
319 #define BLOCK_FLAG_DATA_ONLY 4
320 #define BLOCK_FLAG_READ_ONLY 8
322 #define BLOCK_FLAG_NO_LARGE 0x1000
325 * Magic "block count" return values for the block iterator function.
327 #define BLOCK_COUNT_IND (-1)
328 #define BLOCK_COUNT_DIND (-2)
329 #define BLOCK_COUNT_TIND (-3)
330 #define BLOCK_COUNT_TRANSLATOR (-4)
334 * Flags for ext2fs_move_blocks
336 #define EXT2_BMOVE_GET_DBLIST 0x0001
337 #define EXT2_BMOVE_DEBUG 0x0002
341 * Generic (non-filesystem layout specific) extents structure
344 #define EXT2_EXTENT_FLAGS_LEAF 0x0001
345 #define EXT2_EXTENT_FLAGS_UNINIT 0x0002
346 #define EXT2_EXTENT_FLAGS_SECOND_VISIT 0x0004
348 struct ext2fs_extent {
349 blk64_t e_pblk; /* first physical block */
350 blk64_t e_lblk; /* first logical block extent covers */
351 __u32 e_len; /* number of blocks covered by extent */
352 __u32 e_flags; /* extent flags */
355 typedef struct ext2_extent_handle *ext2_extent_handle_t;
356 typedef struct ext2_extent_path *ext2_extent_path_t;
359 * Flags used by ext2fs_extent_get()
361 #define EXT2_EXTENT_CURRENT 0x0000
362 #define EXT2_EXTENT_MOVE_MASK 0x000F
363 #define EXT2_EXTENT_ROOT 0x0001
364 #define EXT2_EXTENT_LAST_LEAF 0x0002
365 #define EXT2_EXTENT_FIRST_SIB 0x0003
366 #define EXT2_EXTENT_LAST_SIB 0x0004
367 #define EXT2_EXTENT_NEXT_SIB 0x0005
368 #define EXT2_EXTENT_PREV_SIB 0x0006
369 #define EXT2_EXTENT_NEXT_LEAF 0x0007
370 #define EXT2_EXTENT_PREV_LEAF 0x0008
371 #define EXT2_EXTENT_NEXT 0x0009
372 #define EXT2_EXTENT_PREV 0x000A
373 #define EXT2_EXTENT_UP 0x000B
374 #define EXT2_EXTENT_DOWN 0x000C
375 #define EXT2_EXTENT_DOWN_AND_LAST 0x000D
378 * Flags used by ext2fs_extent_insert()
380 #define EXT2_EXTENT_INSERT_AFTER 0x0001 /* insert after handle loc'n */
381 #define EXT2_EXTENT_INSERT_NOSPLIT 0x0002 /* insert may not cause split */
384 * Flags used by ext2fs_extent_delete()
386 #define EXT2_EXTENT_DELETE_KEEP_EMPTY 0x001 /* keep node if last extnt gone */
389 * Flags used by ext2fs_extent_set_bmap()
391 #define EXT2_EXTENT_SET_BMAP_UNINIT 0x0001
394 * Data structure returned by ext2fs_extent_get_info()
396 struct ext2_extent_info {
406 __u32 max_uninit_len;
410 * Flags for directory block reading and writing functions
412 #define EXT2_DIRBLOCK_V2_STRUCT 0x0001
415 * Return flags for the directory iterator functions
417 #define DIRENT_CHANGED 1
418 #define DIRENT_ABORT 2
419 #define DIRENT_ERROR 3
422 * Directory iterator flags
425 #define DIRENT_FLAG_INCLUDE_EMPTY 1
426 #define DIRENT_FLAG_INCLUDE_REMOVED 2
428 #define DIRENT_DOT_FILE 1
429 #define DIRENT_DOT_DOT_FILE 2
430 #define DIRENT_OTHER_FILE 3
431 #define DIRENT_DELETED_FILE 4
434 * Inode scan definitions
436 typedef struct ext2_struct_inode_scan *ext2_inode_scan;
441 #define EXT2_SF_CHK_BADBLOCKS 0x0001
442 #define EXT2_SF_BAD_INODE_BLK 0x0002
443 #define EXT2_SF_BAD_EXTRA_BYTES 0x0004
444 #define EXT2_SF_SKIP_MISSING_ITABLE 0x0008
445 #define EXT2_SF_DO_LAZY 0x0010
448 * ext2fs_check_if_mounted flags
450 #define EXT2_MF_MOUNTED 1
451 #define EXT2_MF_ISROOT 2
452 #define EXT2_MF_READONLY 4
453 #define EXT2_MF_SWAP 8
454 #define EXT2_MF_BUSY 16
457 * Ext2/linux mode flags. We define them here so that we don't need
458 * to depend on the OS's sys/stat.h, since we may be compiling on a
461 #define LINUX_S_IFMT 00170000
462 #define LINUX_S_IFSOCK 0140000
463 #define LINUX_S_IFLNK 0120000
464 #define LINUX_S_IFREG 0100000
465 #define LINUX_S_IFBLK 0060000
466 #define LINUX_S_IFDIR 0040000
467 #define LINUX_S_IFCHR 0020000
468 #define LINUX_S_IFIFO 0010000
469 #define LINUX_S_ISUID 0004000
470 #define LINUX_S_ISGID 0002000
471 #define LINUX_S_ISVTX 0001000
473 #define LINUX_S_IRWXU 00700
474 #define LINUX_S_IRUSR 00400
475 #define LINUX_S_IWUSR 00200
476 #define LINUX_S_IXUSR 00100
478 #define LINUX_S_IRWXG 00070
479 #define LINUX_S_IRGRP 00040
480 #define LINUX_S_IWGRP 00020
481 #define LINUX_S_IXGRP 00010
483 #define LINUX_S_IRWXO 00007
484 #define LINUX_S_IROTH 00004
485 #define LINUX_S_IWOTH 00002
486 #define LINUX_S_IXOTH 00001
488 #define LINUX_S_ISLNK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFLNK)
489 #define LINUX_S_ISREG(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFREG)
490 #define LINUX_S_ISDIR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFDIR)
491 #define LINUX_S_ISCHR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFCHR)
492 #define LINUX_S_ISBLK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFBLK)
493 #define LINUX_S_ISFIFO(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFIFO)
494 #define LINUX_S_ISSOCK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFSOCK)
497 * ext2 size of an inode
499 #define EXT2_I_SIZE(i) ((i)->i_size | ((__u64) (i)->i_size_high << 32))
502 * ext2_icount_t abstraction
504 #define EXT2_ICOUNT_OPT_INCREMENT 0x01
506 typedef struct ext2_icount *ext2_icount_t;
509 * Flags for ext2fs_bmap
511 #define BMAP_ALLOC 0x0001
512 #define BMAP_SET 0x0002
515 * Returned flags from ext2fs_bmap
517 #define BMAP_RET_UNINIT 0x0001
520 * Flags for imager.c functions
522 #define IMAGER_FLAG_INODEMAP 1
523 #define IMAGER_FLAG_SPARSEWRITE 2
526 * For checking structure magic numbers...
529 #define EXT2_CHECK_MAGIC(struct, code) \
530 if ((struct)->magic != (code)) return (code)
534 * For ext2 compression support
536 #define EXT2FS_COMPRESSED_BLKADDR ((blk_t) -1)
537 #define HOLE_BLKADDR(_b) ((_b) == 0 || (_b) == EXT2FS_COMPRESSED_BLKADDR)
540 * Features supported by this version of the library
542 #define EXT2_LIB_FEATURE_COMPAT_SUPP (EXT2_FEATURE_COMPAT_DIR_PREALLOC|\
543 EXT2_FEATURE_COMPAT_IMAGIC_INODES|\
544 EXT3_FEATURE_COMPAT_HAS_JOURNAL|\
545 EXT2_FEATURE_COMPAT_RESIZE_INODE|\
546 EXT2_FEATURE_COMPAT_DIR_INDEX|\
547 EXT2_FEATURE_COMPAT_EXT_ATTR)
549 /* This #ifdef is temporary until compression is fully supported */
550 #ifdef ENABLE_COMPRESSION
551 #ifndef I_KNOW_THAT_COMPRESSION_IS_EXPERIMENTAL
552 /* If the below warning bugs you, then have
553 `CPPFLAGS=-DI_KNOW_THAT_COMPRESSION_IS_EXPERIMENTAL' in your
554 environment at configure time. */
555 #warning "Compression support is experimental"
557 #define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\
558 EXT2_FEATURE_INCOMPAT_COMPRESSION|\
559 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\
560 EXT2_FEATURE_INCOMPAT_META_BG|\
561 EXT3_FEATURE_INCOMPAT_RECOVER|\
562 EXT3_FEATURE_INCOMPAT_EXTENTS|\
563 EXT4_FEATURE_INCOMPAT_FLEX_BG|\
564 EXT4_FEATURE_INCOMPAT_MMP|\
565 EXT4_FEATURE_INCOMPAT_64BIT)
567 #define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\
568 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\
569 EXT2_FEATURE_INCOMPAT_META_BG|\
570 EXT3_FEATURE_INCOMPAT_RECOVER|\
571 EXT3_FEATURE_INCOMPAT_EXTENTS|\
572 EXT4_FEATURE_INCOMPAT_FLEX_BG|\
573 EXT4_FEATURE_INCOMPAT_MMP|\
574 EXT4_FEATURE_INCOMPAT_64BIT)
577 #define EXT2_LIB_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|\
578 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|\
579 EXT2_FEATURE_RO_COMPAT_LARGE_FILE|\
580 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|\
581 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|\
582 EXT4_FEATURE_RO_COMPAT_GDT_CSUM|\
583 EXT4_FEATURE_RO_COMPAT_BIGALLOC|\
584 EXT4_FEATURE_RO_COMPAT_QUOTA)
586 #define EXT2_LIB_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|\
587 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|\
588 EXT2_FEATURE_RO_COMPAT_LARGE_FILE|\
589 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|\
590 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|\
591 EXT4_FEATURE_RO_COMPAT_GDT_CSUM|\
592 EXT4_FEATURE_RO_COMPAT_BIGALLOC)
596 * These features are only allowed if EXT2_FLAG_SOFTSUPP_FEATURES is passed
599 #define EXT2_LIB_SOFTSUPP_INCOMPAT (0)
600 #define EXT2_LIB_SOFTSUPP_RO_COMPAT (EXT4_FEATURE_RO_COMPAT_REPLICA)
603 /* Translate a block number to a cluster number */
604 #define EXT2FS_CLUSTER_RATIO(fs) (1 << (fs)->cluster_ratio_bits)
605 #define EXT2FS_CLUSTER_MASK(fs) (EXT2FS_CLUSTER_RATIO(fs) - 1)
606 #define EXT2FS_B2C(fs, blk) ((blk) >> (fs)->cluster_ratio_bits)
607 /* Translate a cluster number to a block number */
608 #define EXT2FS_C2B(fs, cluster) ((cluster) << (fs)->cluster_ratio_bits)
609 /* Translate # of blks to # of clusters */
610 #define EXT2FS_NUM_B2C(fs, blks) (((blks) + EXT2FS_CLUSTER_MASK(fs)) >> \
611 (fs)->cluster_ratio_bits)
613 #if defined(HAVE_FSTAT64) && !defined(__OSX_AVAILABLE_BUT_DEPRECATED)
614 typedef struct stat64 ext2fs_struct_stat;
616 typedef struct stat ext2fs_struct_stat;
620 * For ext2fs_close2() and ext2fs_flush2(), this flag allows you to
621 * avoid the fsync call.
623 #define EXT2_FLAG_FLUSH_NO_SYNC 1
626 * function prototypes
630 extern errcode_t ext2fs_new_inode(ext2_filsys fs, ext2_ino_t dir, int mode,
631 ext2fs_inode_bitmap map, ext2_ino_t *ret);
632 extern errcode_t ext2fs_new_block(ext2_filsys fs, blk_t goal,
633 ext2fs_block_bitmap map, blk_t *ret);
634 extern errcode_t ext2fs_new_block2(ext2_filsys fs, blk64_t goal,
635 ext2fs_block_bitmap map, blk64_t *ret);
636 extern errcode_t ext2fs_get_free_blocks(ext2_filsys fs, blk_t start,
637 blk_t finish, int num,
638 ext2fs_block_bitmap map,
640 extern errcode_t ext2fs_get_free_blocks2(ext2_filsys fs, blk64_t start,
641 blk64_t finish, int num,
642 ext2fs_block_bitmap map,
644 extern errcode_t ext2fs_alloc_block(ext2_filsys fs, blk_t goal,
645 char *block_buf, blk_t *ret);
646 extern errcode_t ext2fs_alloc_block2(ext2_filsys fs, blk64_t goal,
647 char *block_buf, blk64_t *ret);
648 extern void ext2fs_set_alloc_block_callback(ext2_filsys fs,
649 errcode_t (*func)(ext2_filsys fs,
652 errcode_t (**old)(ext2_filsys fs,
657 extern int ext2fs_reserve_super_and_bgd(ext2_filsys fs,
659 ext2fs_block_bitmap bmap);
660 extern void ext2fs_set_block_alloc_stats_callback(ext2_filsys fs,
661 void (*func)(ext2_filsys fs,
664 void (**old)(ext2_filsys fs,
669 void ext2fs_inode_alloc_stats(ext2_filsys fs, ext2_ino_t ino, int inuse);
670 void ext2fs_inode_alloc_stats2(ext2_filsys fs, ext2_ino_t ino,
671 int inuse, int isdir);
672 void ext2fs_block_alloc_stats(ext2_filsys fs, blk_t blk, int inuse);
673 void ext2fs_block_alloc_stats2(ext2_filsys fs, blk64_t blk, int inuse);
676 extern errcode_t ext2fs_allocate_tables(ext2_filsys fs);
677 extern errcode_t ext2fs_allocate_group_table(ext2_filsys fs, dgrp_t group,
678 ext2fs_block_bitmap bmap);
681 extern errcode_t ext2fs_u32_list_create(ext2_u32_list *ret, int size);
682 extern errcode_t ext2fs_u32_list_add(ext2_u32_list bb, __u32 blk);
683 extern int ext2fs_u32_list_find(ext2_u32_list bb, __u32 blk);
684 extern int ext2fs_u32_list_test(ext2_u32_list bb, blk_t blk);
685 extern errcode_t ext2fs_u32_list_iterate_begin(ext2_u32_list bb,
686 ext2_u32_iterate *ret);
687 extern int ext2fs_u32_list_iterate(ext2_u32_iterate iter, blk_t *blk);
688 extern void ext2fs_u32_list_iterate_end(ext2_u32_iterate iter);
689 extern errcode_t ext2fs_u32_copy(ext2_u32_list src, ext2_u32_list *dest);
690 extern int ext2fs_u32_list_equal(ext2_u32_list bb1, ext2_u32_list bb2);
692 extern errcode_t ext2fs_badblocks_list_create(ext2_badblocks_list *ret,
694 extern errcode_t ext2fs_badblocks_list_add(ext2_badblocks_list bb,
696 extern int ext2fs_badblocks_list_test(ext2_badblocks_list bb,
698 extern int ext2fs_u32_list_del(ext2_u32_list bb, __u32 blk);
699 extern void ext2fs_badblocks_list_del(ext2_u32_list bb, __u32 blk);
701 ext2fs_badblocks_list_iterate_begin(ext2_badblocks_list bb,
702 ext2_badblocks_iterate *ret);
703 extern int ext2fs_badblocks_list_iterate(ext2_badblocks_iterate iter,
705 extern void ext2fs_badblocks_list_iterate_end(ext2_badblocks_iterate iter);
706 extern errcode_t ext2fs_badblocks_copy(ext2_badblocks_list src,
707 ext2_badblocks_list *dest);
708 extern int ext2fs_badblocks_equal(ext2_badblocks_list bb1,
709 ext2_badblocks_list bb2);
710 extern int ext2fs_u32_list_count(ext2_u32_list bb);
713 extern errcode_t badblocks_list_create(badblocks_list *ret, int size);
714 extern errcode_t badblocks_list_add(badblocks_list bb, blk_t blk);
715 extern int badblocks_list_test(badblocks_list bb, blk_t blk);
716 extern errcode_t badblocks_list_iterate_begin(badblocks_list bb,
717 badblocks_iterate *ret);
718 extern int badblocks_list_iterate(badblocks_iterate iter, blk_t *blk);
719 extern void badblocks_list_iterate_end(badblocks_iterate iter);
720 extern void badblocks_list_free(badblocks_list bb);
723 extern errcode_t ext2fs_update_bb_inode(ext2_filsys fs,
724 ext2_badblocks_list bb_list);
727 extern void ext2fs_free_block_bitmap(ext2fs_block_bitmap bitmap);
728 extern void ext2fs_free_inode_bitmap(ext2fs_inode_bitmap bitmap);
729 extern errcode_t ext2fs_copy_bitmap(ext2fs_generic_bitmap src,
730 ext2fs_generic_bitmap *dest);
731 extern errcode_t ext2fs_write_inode_bitmap(ext2_filsys fs);
732 extern errcode_t ext2fs_write_block_bitmap (ext2_filsys fs);
733 extern errcode_t ext2fs_read_inode_bitmap (ext2_filsys fs);
734 extern errcode_t ext2fs_read_block_bitmap(ext2_filsys fs);
735 extern errcode_t ext2fs_allocate_block_bitmap(ext2_filsys fs,
737 ext2fs_block_bitmap *ret);
738 extern errcode_t ext2fs_allocate_subcluster_bitmap(ext2_filsys fs,
740 ext2fs_block_bitmap *ret);
741 extern int ext2fs_get_bitmap_granularity(ext2fs_block_bitmap bitmap);
742 extern errcode_t ext2fs_allocate_inode_bitmap(ext2_filsys fs,
744 ext2fs_inode_bitmap *ret);
745 extern errcode_t ext2fs_fudge_inode_bitmap_end(ext2fs_inode_bitmap bitmap,
746 ext2_ino_t end, ext2_ino_t *oend);
747 extern errcode_t ext2fs_fudge_block_bitmap_end(ext2fs_block_bitmap bitmap,
748 blk_t end, blk_t *oend);
749 extern errcode_t ext2fs_fudge_block_bitmap_end2(ext2fs_block_bitmap bitmap,
750 blk64_t end, blk64_t *oend);
751 extern void ext2fs_clear_inode_bitmap(ext2fs_inode_bitmap bitmap);
752 extern void ext2fs_clear_block_bitmap(ext2fs_block_bitmap bitmap);
753 extern errcode_t ext2fs_read_bitmaps(ext2_filsys fs);
754 extern errcode_t ext2fs_write_bitmaps(ext2_filsys fs);
755 extern errcode_t ext2fs_resize_inode_bitmap(__u32 new_end, __u32 new_real_end,
756 ext2fs_inode_bitmap bmap);
757 extern errcode_t ext2fs_resize_inode_bitmap2(__u64 new_end,
759 ext2fs_inode_bitmap bmap);
760 extern errcode_t ext2fs_resize_block_bitmap(__u32 new_end, __u32 new_real_end,
761 ext2fs_block_bitmap bmap);
762 extern errcode_t ext2fs_resize_block_bitmap2(__u64 new_end,
764 ext2fs_block_bitmap bmap);
765 extern errcode_t ext2fs_compare_block_bitmap(ext2fs_block_bitmap bm1,
766 ext2fs_block_bitmap bm2);
767 extern errcode_t ext2fs_compare_inode_bitmap(ext2fs_inode_bitmap bm1,
768 ext2fs_inode_bitmap bm2);
769 extern errcode_t ext2fs_set_inode_bitmap_range(ext2fs_inode_bitmap bmap,
770 ext2_ino_t start, unsigned int num,
772 extern errcode_t ext2fs_set_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
773 __u64 start, size_t num,
775 extern errcode_t ext2fs_get_inode_bitmap_range(ext2fs_inode_bitmap bmap,
776 ext2_ino_t start, unsigned int num,
778 extern errcode_t ext2fs_get_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
779 __u64 start, size_t num,
781 extern errcode_t ext2fs_set_block_bitmap_range(ext2fs_block_bitmap bmap,
782 blk_t start, unsigned int num,
784 extern errcode_t ext2fs_set_block_bitmap_range2(ext2fs_block_bitmap bmap,
785 blk64_t start, size_t num,
787 extern errcode_t ext2fs_get_block_bitmap_range(ext2fs_block_bitmap bmap,
788 blk_t start, unsigned int num,
790 extern errcode_t ext2fs_get_block_bitmap_range2(ext2fs_block_bitmap bmap,
791 blk64_t start, size_t num,
795 extern dgrp_t ext2fs_group_of_blk2(ext2_filsys fs, blk64_t);
796 extern blk64_t ext2fs_group_first_block2(ext2_filsys fs, dgrp_t group);
797 extern blk64_t ext2fs_group_last_block2(ext2_filsys fs, dgrp_t group);
798 extern int ext2fs_group_blocks_count(ext2_filsys fs, dgrp_t group);
799 extern blk64_t ext2fs_inode_data_blocks2(ext2_filsys fs,
800 struct ext2_inode *inode);
801 extern blk64_t ext2fs_inode_i_blocks(ext2_filsys fs,
802 struct ext2_inode *inode);
803 extern blk64_t ext2fs_blocks_count(struct ext2_super_block *super);
804 extern void ext2fs_blocks_count_set(struct ext2_super_block *super,
806 extern void ext2fs_blocks_count_add(struct ext2_super_block *super,
808 extern blk64_t ext2fs_r_blocks_count(struct ext2_super_block *super);
809 extern void ext2fs_r_blocks_count_set(struct ext2_super_block *super,
811 extern void ext2fs_r_blocks_count_add(struct ext2_super_block *super,
813 extern blk64_t ext2fs_free_blocks_count(struct ext2_super_block *super);
814 extern void ext2fs_free_blocks_count_set(struct ext2_super_block *super,
816 extern void ext2fs_free_blocks_count_add(struct ext2_super_block *super,
818 /* Block group descriptor accessor functions */
819 extern struct ext2_group_desc *ext2fs_group_desc(ext2_filsys fs,
820 struct opaque_ext2_group_desc *gdp,
822 extern blk64_t ext2fs_block_bitmap_loc(ext2_filsys fs, dgrp_t group);
823 extern void ext2fs_block_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
825 extern blk64_t ext2fs_inode_bitmap_loc(ext2_filsys fs, dgrp_t group);
826 extern void ext2fs_inode_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
828 extern blk64_t ext2fs_inode_table_loc(ext2_filsys fs, dgrp_t group);
829 extern void ext2fs_inode_table_loc_set(ext2_filsys fs, dgrp_t group,
831 extern __u32 ext2fs_bg_free_blocks_count(ext2_filsys fs, dgrp_t group);
832 extern void ext2fs_bg_free_blocks_count_set(ext2_filsys fs, dgrp_t group,
834 extern __u32 ext2fs_bg_free_inodes_count(ext2_filsys fs, dgrp_t group);
835 extern void ext2fs_bg_free_inodes_count_set(ext2_filsys fs, dgrp_t group,
837 extern __u32 ext2fs_bg_used_dirs_count(ext2_filsys fs, dgrp_t group);
838 extern void ext2fs_bg_used_dirs_count_set(ext2_filsys fs, dgrp_t group,
840 extern __u32 ext2fs_bg_itable_unused(ext2_filsys fs, dgrp_t group);
841 extern void ext2fs_bg_itable_unused_set(ext2_filsys fs, dgrp_t group,
843 extern __u16 ext2fs_bg_flags(ext2_filsys fs, dgrp_t group);
844 extern void ext2fs_bg_flags_zap(ext2_filsys fs, dgrp_t group);
845 extern int ext2fs_bg_flags_test(ext2_filsys fs, dgrp_t group, __u16 bg_flag);
846 extern void ext2fs_bg_flags_set(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
847 extern void ext2fs_bg_flags_clear(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
848 extern __u16 ext2fs_bg_checksum(ext2_filsys fs, dgrp_t group);
849 extern void ext2fs_bg_checksum_set(ext2_filsys fs, dgrp_t group, __u16 checksum);
850 extern blk64_t ext2fs_file_acl_block(ext2_filsys fs,
851 const struct ext2_inode *inode);
852 extern void ext2fs_file_acl_block_set(ext2_filsys fs,
853 struct ext2_inode *inode, blk64_t blk);
856 extern errcode_t ext2fs_block_iterate(ext2_filsys fs,
860 int (*func)(ext2_filsys fs,
865 errcode_t ext2fs_block_iterate2(ext2_filsys fs,
869 int (*func)(ext2_filsys fs,
871 e2_blkcnt_t blockcnt,
876 errcode_t ext2fs_block_iterate3(ext2_filsys fs,
880 int (*func)(ext2_filsys fs,
882 e2_blkcnt_t blockcnt,
889 extern errcode_t ext2fs_bmap(ext2_filsys fs, ext2_ino_t ino,
890 struct ext2_inode *inode,
891 char *block_buf, int bmap_flags,
892 blk_t block, blk_t *phys_blk);
893 extern errcode_t ext2fs_bmap2(ext2_filsys fs, ext2_ino_t ino,
894 struct ext2_inode *inode,
895 char *block_buf, int bmap_flags, blk64_t block,
896 int *ret_flags, blk64_t *phys_blk);
900 extern errcode_t ext2fs_move_blocks(ext2_filsys fs,
901 ext2fs_block_bitmap reserve,
902 ext2fs_block_bitmap alloc_map,
907 extern errcode_t ext2fs_check_desc(ext2_filsys fs);
910 extern errcode_t ext2fs_close(ext2_filsys fs);
911 extern errcode_t ext2fs_close2(ext2_filsys fs, int flags);
912 extern errcode_t ext2fs_flush(ext2_filsys fs);
913 extern errcode_t ext2fs_flush2(ext2_filsys fs, int flags);
914 extern int ext2fs_bg_has_super(ext2_filsys fs, int group_block);
915 extern errcode_t ext2fs_super_and_bgd_loc2(ext2_filsys fs,
917 blk64_t *ret_super_blk,
918 blk64_t *ret_old_desc_blk,
919 blk64_t *ret_new_desc_blk,
920 blk_t *ret_used_blks);
921 extern int ext2fs_super_and_bgd_loc(ext2_filsys fs,
923 blk_t *ret_super_blk,
924 blk_t *ret_old_desc_blk,
925 blk_t *ret_new_desc_blk,
927 extern void ext2fs_update_dynamic_rev(ext2_filsys fs);
930 extern __u32 ext2fs_crc32c_be(__u32 crc, unsigned char const *p, size_t len);
931 extern __u32 ext2fs_crc32c_le(__u32 crc, unsigned char const *p, size_t len);
934 extern void ext2fs_group_desc_csum_set(ext2_filsys fs, dgrp_t group);
935 extern int ext2fs_group_desc_csum_verify(ext2_filsys fs, dgrp_t group);
936 extern errcode_t ext2fs_set_gdt_csum(ext2_filsys fs);
937 extern __u16 ext2fs_group_desc_csum(ext2_filsys fs, dgrp_t group);
941 extern errcode_t ext2fs_get_num_dirs(ext2_filsys fs, ext2_ino_t *ret_num_dirs);
942 extern errcode_t ext2fs_init_dblist(ext2_filsys fs, ext2_dblist *ret_dblist);
943 extern errcode_t ext2fs_add_dir_block(ext2_dblist dblist, ext2_ino_t ino,
944 blk_t blk, int blockcnt);
945 extern errcode_t ext2fs_add_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
946 blk64_t blk, e2_blkcnt_t blockcnt);
947 extern void ext2fs_dblist_sort(ext2_dblist dblist,
948 EXT2_QSORT_TYPE (*sortfunc)(const void *,
950 extern void ext2fs_dblist_sort2(ext2_dblist dblist,
951 EXT2_QSORT_TYPE (*sortfunc)(const void *,
953 extern errcode_t ext2fs_dblist_iterate(ext2_dblist dblist,
954 int (*func)(ext2_filsys fs, struct ext2_db_entry *db_info,
957 extern errcode_t ext2fs_dblist_iterate2(ext2_dblist dblist,
958 int (*func)(ext2_filsys fs, struct ext2_db_entry2 *db_info,
961 extern errcode_t ext2fs_set_dir_block(ext2_dblist dblist, ext2_ino_t ino,
962 blk_t blk, int blockcnt);
963 extern errcode_t ext2fs_set_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
964 blk64_t blk, e2_blkcnt_t blockcnt);
965 extern errcode_t ext2fs_copy_dblist(ext2_dblist src,
967 extern int ext2fs_dblist_count(ext2_dblist dblist);
968 extern blk64_t ext2fs_dblist_count2(ext2_dblist dblist);
969 extern errcode_t ext2fs_dblist_get_last(ext2_dblist dblist,
970 struct ext2_db_entry **entry);
971 extern errcode_t ext2fs_dblist_get_last2(ext2_dblist dblist,
972 struct ext2_db_entry2 **entry);
973 extern errcode_t ext2fs_dblist_drop_last(ext2_dblist dblist);
977 ext2fs_dblist_dir_iterate(ext2_dblist dblist,
980 int (*func)(ext2_ino_t dir,
982 struct ext2_dir_entry *dirent,
990 extern errcode_t ext2fs_read_dir_block(ext2_filsys fs, blk_t block,
992 extern errcode_t ext2fs_read_dir_block2(ext2_filsys fs, blk_t block,
993 void *buf, int flags);
994 extern errcode_t ext2fs_read_dir_block3(ext2_filsys fs, blk64_t block,
995 void *buf, int flags);
996 extern errcode_t ext2fs_write_dir_block(ext2_filsys fs, blk_t block,
998 extern errcode_t ext2fs_write_dir_block2(ext2_filsys fs, blk_t block,
999 void *buf, int flags);
1000 extern errcode_t ext2fs_write_dir_block3(ext2_filsys fs, blk64_t block,
1001 void *buf, int flags);
1004 extern errcode_t ext2fs_dirhash(int version, const char *name, int len,
1006 ext2_dirhash_t *ret_hash,
1007 ext2_dirhash_t *ret_minor_hash);
1011 extern errcode_t ext2fs_get_rec_len(ext2_filsys fs,
1012 struct ext2_dir_entry *dirent,
1013 unsigned int *rec_len);
1014 extern errcode_t ext2fs_set_rec_len(ext2_filsys fs,
1016 struct ext2_dir_entry *dirent);
1017 extern errcode_t ext2fs_dir_iterate(ext2_filsys fs,
1021 int (*func)(struct ext2_dir_entry *dirent,
1027 extern errcode_t ext2fs_dir_iterate2(ext2_filsys fs,
1031 int (*func)(ext2_ino_t dir,
1033 struct ext2_dir_entry *dirent,
1041 extern errcode_t ext2fs_dup_handle(ext2_filsys src, ext2_filsys *dest);
1044 extern errcode_t ext2fs_expand_dir(ext2_filsys fs, ext2_ino_t dir);
1047 extern __u32 ext2fs_ext_attr_hash_entry(struct ext2_ext_attr_entry *entry,
1049 extern errcode_t ext2fs_read_ext_attr(ext2_filsys fs, blk_t block, void *buf);
1050 extern errcode_t ext2fs_read_ext_attr2(ext2_filsys fs, blk64_t block,
1052 extern errcode_t ext2fs_write_ext_attr(ext2_filsys fs, blk_t block,
1054 extern errcode_t ext2fs_write_ext_attr2(ext2_filsys fs, blk64_t block,
1056 extern errcode_t ext2fs_adjust_ea_refcount(ext2_filsys fs, blk_t blk,
1058 int adjust, __u32 *newcount);
1059 extern errcode_t ext2fs_adjust_ea_refcount2(ext2_filsys fs, blk64_t blk,
1061 int adjust, __u32 *newcount);
1064 extern errcode_t ext2fs_extent_header_verify(void *ptr, int size);
1065 extern errcode_t ext2fs_extent_open(ext2_filsys fs, ext2_ino_t ino,
1066 ext2_extent_handle_t *handle);
1067 extern errcode_t ext2fs_extent_open2(ext2_filsys fs, ext2_ino_t ino,
1068 struct ext2_inode *inode,
1069 ext2_extent_handle_t *ret_handle);
1070 extern void ext2fs_extent_free(ext2_extent_handle_t handle);
1071 extern errcode_t ext2fs_extent_get(ext2_extent_handle_t handle,
1072 int flags, struct ext2fs_extent *extent);
1073 extern errcode_t ext2fs_extent_replace(ext2_extent_handle_t handle, int flags,
1074 struct ext2fs_extent *extent);
1075 extern errcode_t ext2fs_extent_insert(ext2_extent_handle_t handle, int flags,
1076 struct ext2fs_extent *extent);
1077 extern errcode_t ext2fs_extent_set_bmap(ext2_extent_handle_t handle,
1078 blk64_t logical, blk64_t physical,
1080 extern errcode_t ext2fs_extent_delete(ext2_extent_handle_t handle, int flags);
1081 extern errcode_t ext2fs_extent_get_info(ext2_extent_handle_t handle,
1082 struct ext2_extent_info *info);
1083 extern errcode_t ext2fs_extent_goto(ext2_extent_handle_t handle,
1087 extern errcode_t ext2fs_file_open2(ext2_filsys fs, ext2_ino_t ino,
1088 struct ext2_inode *inode,
1089 int flags, ext2_file_t *ret);
1090 extern errcode_t ext2fs_file_open(ext2_filsys fs, ext2_ino_t ino,
1091 int flags, ext2_file_t *ret);
1092 extern ext2_filsys ext2fs_file_get_fs(ext2_file_t file);
1093 struct ext2_inode *ext2fs_file_get_inode(ext2_file_t file);
1094 extern ext2_ino_t ext2fs_file_get_inode_num(ext2_file_t file);
1095 extern errcode_t ext2fs_file_close(ext2_file_t file);
1096 extern errcode_t ext2fs_file_flush(ext2_file_t file);
1097 extern errcode_t ext2fs_file_read(ext2_file_t file, void *buf,
1098 unsigned int wanted, unsigned int *got);
1099 extern errcode_t ext2fs_file_write(ext2_file_t file, const void *buf,
1100 unsigned int nbytes, unsigned int *written);
1101 extern errcode_t ext2fs_file_llseek(ext2_file_t file, __u64 offset,
1102 int whence, __u64 *ret_pos);
1103 extern errcode_t ext2fs_file_lseek(ext2_file_t file, ext2_off_t offset,
1104 int whence, ext2_off_t *ret_pos);
1105 errcode_t ext2fs_file_get_lsize(ext2_file_t file, __u64 *ret_size);
1106 extern ext2_off_t ext2fs_file_get_size(ext2_file_t file);
1107 extern errcode_t ext2fs_file_set_size(ext2_file_t file, ext2_off_t size);
1108 extern errcode_t ext2fs_file_set_size2(ext2_file_t file, ext2_off64_t size);
1111 extern char *ext2fs_find_block_device(dev_t device);
1114 extern errcode_t ext2fs_sync_device(int fd, int flushb);
1117 extern void ext2fs_free(ext2_filsys fs);
1118 extern void ext2fs_free_dblist(ext2_dblist dblist);
1119 extern void ext2fs_badblocks_list_free(ext2_badblocks_list bb);
1120 extern void ext2fs_u32_list_free(ext2_u32_list bb);
1123 extern void ext2fs_free_generic_bitmap(ext2fs_inode_bitmap bitmap);
1124 extern errcode_t ext2fs_make_generic_bitmap(errcode_t magic, ext2_filsys fs,
1125 __u32 start, __u32 end,
1127 const char *descr, char *init_map,
1128 ext2fs_generic_bitmap *ret);
1129 extern errcode_t ext2fs_allocate_generic_bitmap(__u32 start,
1133 ext2fs_generic_bitmap *ret);
1134 extern errcode_t ext2fs_copy_generic_bitmap(ext2fs_generic_bitmap src,
1135 ext2fs_generic_bitmap *dest);
1136 extern void ext2fs_clear_generic_bitmap(ext2fs_generic_bitmap bitmap);
1137 extern errcode_t ext2fs_fudge_generic_bitmap_end(ext2fs_inode_bitmap bitmap,
1142 extern void ext2fs_set_generic_bitmap_padding(ext2fs_generic_bitmap map);
1143 extern errcode_t ext2fs_resize_generic_bitmap(errcode_t magic,
1146 ext2fs_generic_bitmap bmap);
1147 extern errcode_t ext2fs_compare_generic_bitmap(errcode_t magic, errcode_t neq,
1148 ext2fs_generic_bitmap bm1,
1149 ext2fs_generic_bitmap bm2);
1150 extern errcode_t ext2fs_get_generic_bitmap_range(ext2fs_generic_bitmap bmap,
1152 __u32 start, __u32 num,
1154 extern errcode_t ext2fs_set_generic_bitmap_range(ext2fs_generic_bitmap bmap,
1156 __u32 start, __u32 num,
1158 extern errcode_t ext2fs_find_first_zero_generic_bitmap(ext2fs_generic_bitmap bitmap,
1159 __u32 start, __u32 end,
1162 /* gen_bitmap64.c */
1164 /* Generate and print bitmap usage statistics */
1167 void ext2fs_free_generic_bmap(ext2fs_generic_bitmap bmap);
1168 errcode_t ext2fs_alloc_generic_bmap(ext2_filsys fs, errcode_t magic,
1169 int type, __u64 start, __u64 end,
1172 ext2fs_generic_bitmap *ret);
1173 errcode_t ext2fs_copy_generic_bmap(ext2fs_generic_bitmap src,
1174 ext2fs_generic_bitmap *dest);
1175 void ext2fs_clear_generic_bmap(ext2fs_generic_bitmap bitmap);
1176 errcode_t ext2fs_fudge_generic_bmap_end(ext2fs_generic_bitmap bitmap,
1178 __u64 end, __u64 *oend);
1179 void ext2fs_set_generic_bmap_padding(ext2fs_generic_bitmap bmap);
1180 errcode_t ext2fs_resize_generic_bmap(ext2fs_generic_bitmap bmap,
1182 __u64 new_real_end);
1183 errcode_t ext2fs_compare_generic_bmap(errcode_t neq,
1184 ext2fs_generic_bitmap bm1,
1185 ext2fs_generic_bitmap bm2);
1186 errcode_t ext2fs_get_generic_bmap_range(ext2fs_generic_bitmap bmap,
1187 __u64 start, unsigned int num,
1189 errcode_t ext2fs_set_generic_bmap_range(ext2fs_generic_bitmap bmap,
1190 __u64 start, unsigned int num,
1192 errcode_t ext2fs_convert_subcluster_bitmap(ext2_filsys fs,
1193 ext2fs_block_bitmap *bitmap);
1196 extern errcode_t ext2fs_get_device_size(const char *file, int blocksize,
1198 extern errcode_t ext2fs_get_device_size2(const char *file, int blocksize,
1199 blk64_t *retblocks);
1202 extern int ext2fs_get_dio_alignment(int fd);
1203 errcode_t ext2fs_get_device_sectsize(const char *file, int *sectsize);
1204 errcode_t ext2fs_get_device_phys_sectsize(const char *file, int *sectsize);
1207 errcode_t ext2fs_iblk_add_blocks(ext2_filsys fs, struct ext2_inode *inode,
1208 blk64_t num_blocks);
1209 errcode_t ext2fs_iblk_sub_blocks(ext2_filsys fs, struct ext2_inode *inode,
1210 blk64_t num_blocks);
1211 errcode_t ext2fs_iblk_set(ext2_filsys fs, struct ext2_inode *inode, blk64_t b);
1214 extern errcode_t ext2fs_image_inode_write(ext2_filsys fs, int fd, int flags);
1215 extern errcode_t ext2fs_image_inode_read(ext2_filsys fs, int fd, int flags);
1216 extern errcode_t ext2fs_image_super_write(ext2_filsys fs, int fd, int flags);
1217 extern errcode_t ext2fs_image_super_read(ext2_filsys fs, int fd, int flags);
1218 extern errcode_t ext2fs_image_bitmap_write(ext2_filsys fs, int fd, int flags);
1219 extern errcode_t ext2fs_image_bitmap_read(ext2_filsys fs, int fd, int flags);
1222 errcode_t ext2fs_read_ind_block(ext2_filsys fs, blk_t blk, void *buf);
1223 errcode_t ext2fs_write_ind_block(ext2_filsys fs, blk_t blk, void *buf);
1226 extern errcode_t ext2fs_initialize(const char *name, int flags,
1227 struct ext2_super_block *param,
1228 io_manager manager, ext2_filsys *ret_fs);
1231 extern void ext2fs_free_icount(ext2_icount_t icount);
1232 extern errcode_t ext2fs_create_icount_tdb(ext2_filsys fs, char *tdb_dir,
1233 int flags, ext2_icount_t *ret);
1234 extern errcode_t ext2fs_create_icount2(ext2_filsys fs, int flags,
1236 ext2_icount_t hint, ext2_icount_t *ret);
1237 extern errcode_t ext2fs_create_icount(ext2_filsys fs, int flags,
1239 ext2_icount_t *ret);
1240 extern errcode_t ext2fs_icount_fetch(ext2_icount_t icount, ext2_ino_t ino,
1242 extern errcode_t ext2fs_icount_increment(ext2_icount_t icount, ext2_ino_t ino,
1244 extern errcode_t ext2fs_icount_decrement(ext2_icount_t icount, ext2_ino_t ino,
1246 extern errcode_t ext2fs_icount_store(ext2_icount_t icount, ext2_ino_t ino,
1248 extern ext2_ino_t ext2fs_get_icount_size(ext2_icount_t icount);
1249 errcode_t ext2fs_icount_validate(ext2_icount_t icount, FILE *);
1253 extern errcode_t ext2fs_get_memalign(unsigned long size,
1254 unsigned long align, void *ptr);
1257 extern errcode_t ext2fs_flush_icache(ext2_filsys fs);
1258 extern errcode_t ext2fs_get_next_inode_full(ext2_inode_scan scan,
1260 struct ext2_inode *inode,
1262 extern errcode_t ext2fs_open_inode_scan(ext2_filsys fs, int buffer_blocks,
1263 ext2_inode_scan *ret_scan);
1264 extern void ext2fs_close_inode_scan(ext2_inode_scan scan);
1265 extern errcode_t ext2fs_get_next_inode(ext2_inode_scan scan, ext2_ino_t *ino,
1266 struct ext2_inode *inode);
1267 extern errcode_t ext2fs_inode_scan_goto_blockgroup(ext2_inode_scan scan,
1269 extern void ext2fs_set_inode_callback
1270 (ext2_inode_scan scan,
1271 errcode_t (*done_group)(ext2_filsys fs,
1272 ext2_inode_scan scan,
1275 void *done_group_data);
1276 extern int ext2fs_inode_scan_flags(ext2_inode_scan scan, int set_flags,
1278 extern errcode_t ext2fs_read_inode_full(ext2_filsys fs, ext2_ino_t ino,
1279 struct ext2_inode * inode,
1281 extern errcode_t ext2fs_read_inode (ext2_filsys fs, ext2_ino_t ino,
1282 struct ext2_inode * inode);
1283 extern errcode_t ext2fs_write_inode_full(ext2_filsys fs, ext2_ino_t ino,
1284 struct ext2_inode * inode,
1286 extern errcode_t ext2fs_write_inode(ext2_filsys fs, ext2_ino_t ino,
1287 struct ext2_inode * inode);
1288 extern errcode_t ext2fs_write_new_inode(ext2_filsys fs, ext2_ino_t ino,
1289 struct ext2_inode * inode);
1290 extern errcode_t ext2fs_get_blocks(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
1291 extern errcode_t ext2fs_check_directory(ext2_filsys fs, ext2_ino_t ino);
1294 extern io_manager inode_io_manager;
1295 extern errcode_t ext2fs_inode_io_intern(ext2_filsys fs, ext2_ino_t ino,
1297 extern errcode_t ext2fs_inode_io_intern2(ext2_filsys fs, ext2_ino_t ino,
1298 struct ext2_inode *inode,
1302 extern errcode_t ext2fs_check_if_mounted(const char *file, int *mount_flags);
1303 extern errcode_t ext2fs_check_mount_point(const char *device, int *mount_flags,
1304 char *mtpt, int mtlen);
1307 extern errcode_t ext2fs_punch(ext2_filsys fs, ext2_ino_t ino,
1308 struct ext2_inode *inode,
1309 char *block_buf, blk64_t start,
1313 extern errcode_t ext2fs_lookup(ext2_filsys fs, ext2_ino_t dir, const char *name,
1314 int namelen, char *buf, ext2_ino_t *inode);
1315 extern errcode_t ext2fs_namei(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1316 const char *name, ext2_ino_t *inode);
1317 errcode_t ext2fs_namei_follow(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1318 const char *name, ext2_ino_t *inode);
1319 extern errcode_t ext2fs_follow_link(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1320 ext2_ino_t inode, ext2_ino_t *res_inode);
1323 int ext2fs_native_flag(void);
1326 extern errcode_t ext2fs_new_dir_block(ext2_filsys fs, ext2_ino_t dir_ino,
1327 ext2_ino_t parent_ino, char **block);
1330 extern errcode_t ext2fs_mkdir(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t inum,
1334 extern errcode_t ext2fs_zero_blocks(ext2_filsys fs, blk_t blk, int num,
1335 blk_t *ret_blk, int *ret_count);
1336 extern errcode_t ext2fs_zero_blocks2(ext2_filsys fs, blk64_t blk, int num,
1337 blk64_t *ret_blk, int *ret_count);
1338 extern errcode_t ext2fs_create_journal_superblock(ext2_filsys fs,
1339 __u32 num_blocks, int flags,
1341 extern errcode_t ext2fs_add_journal_device(ext2_filsys fs,
1342 ext2_filsys journal_dev);
1343 extern errcode_t ext2fs_add_journal_inode(ext2_filsys fs, blk_t num_blocks,
1345 extern int ext2fs_default_journal_size(__u64 num_blocks);
1348 extern errcode_t ext2fs_open(const char *name, int flags, int superblock,
1349 unsigned int block_size, io_manager manager,
1350 ext2_filsys *ret_fs);
1351 extern errcode_t ext2fs_open2(const char *name, const char *io_options,
1352 int flags, int superblock,
1353 unsigned int block_size, io_manager manager,
1354 ext2_filsys *ret_fs);
1355 extern blk64_t ext2fs_descriptor_block_loc2(ext2_filsys fs,
1356 blk64_t group_block, dgrp_t i);
1357 extern blk_t ext2fs_descriptor_block_loc(ext2_filsys fs, blk_t group_block,
1359 errcode_t ext2fs_get_data_io(ext2_filsys fs, io_channel *old_io);
1360 errcode_t ext2fs_set_data_io(ext2_filsys fs, io_channel new_io);
1361 errcode_t ext2fs_rewrite_to_io(ext2_filsys fs, io_channel new_io);
1363 /* get_pathname.c */
1364 extern errcode_t ext2fs_get_pathname(ext2_filsys fs, ext2_ino_t dir, ext2_ino_t ino,
1368 errcode_t ext2fs_link(ext2_filsys fs, ext2_ino_t dir, const char *name,
1369 ext2_ino_t ino, int flags);
1370 errcode_t ext2fs_unlink(ext2_filsys fs, ext2_ino_t dir, const char *name,
1371 ext2_ino_t ino, int flags);
1374 errcode_t ext2fs_mmp_read(ext2_filsys fs, blk64_t mmp_blk, void *buf);
1375 errcode_t ext2fs_mmp_write(ext2_filsys fs, blk64_t mmp_blk, void *buf);
1376 errcode_t ext2fs_mmp_clear(ext2_filsys fs);
1377 errcode_t ext2fs_mmp_init(ext2_filsys fs);
1378 errcode_t ext2fs_mmp_start(ext2_filsys fs);
1379 errcode_t ext2fs_mmp_update(ext2_filsys fs);
1380 errcode_t ext2fs_mmp_stop(ext2_filsys fs);
1381 unsigned ext2fs_mmp_new_seq(void);
1384 extern errcode_t ext2fs_read_bb_inode(ext2_filsys fs,
1385 ext2_badblocks_list *bb_list);
1387 /* read_bb_file.c */
1388 extern errcode_t ext2fs_read_bb_FILE2(ext2_filsys fs, FILE *f,
1389 ext2_badblocks_list *bb_list,
1391 void (*invalid)(ext2_filsys fs,
1395 extern errcode_t ext2fs_read_bb_FILE(ext2_filsys fs, FILE *f,
1396 ext2_badblocks_list *bb_list,
1397 void (*invalid)(ext2_filsys fs,
1401 extern errcode_t ext2fs_create_resize_inode(ext2_filsys fs);
1404 extern void ext2fs_swap_ext_attr(char *to, char *from, int bufsize,
1406 extern void ext2fs_swap_ext_attr_header(struct ext2_ext_attr_header *to_header,
1407 struct ext2_ext_attr_header *from_hdr);
1408 extern void ext2fs_swap_ext_attr_entry(struct ext2_ext_attr_entry *to_entry,
1409 struct ext2_ext_attr_entry *from_entry);
1410 extern void ext2fs_swap_super(struct ext2_super_block * super);
1411 extern void ext2fs_swap_group_desc(struct ext2_group_desc *gdp);
1412 extern void ext2fs_swap_group_desc2(ext2_filsys, struct ext2_group_desc *gdp);
1413 extern void ext2fs_swap_inode_full(ext2_filsys fs, struct ext2_inode_large *t,
1414 struct ext2_inode_large *f, int hostorder,
1416 extern void ext2fs_swap_inode(ext2_filsys fs,struct ext2_inode *t,
1417 struct ext2_inode *f, int hostorder);
1418 extern void ext2fs_swap_mmp(struct mmp_struct *mmp);
1421 extern int ext2fs_open_file(const char *pathname, int flags, mode_t mode);
1422 extern int ext2fs_stat(const char *path, ext2fs_struct_stat *buf);
1423 extern int ext2fs_fstat(int fd, ext2fs_struct_stat *buf);
1426 extern int ext2fs_inode_has_valid_blocks(struct ext2_inode *inode);
1427 extern int ext2fs_inode_has_valid_blocks2(ext2_filsys fs,
1428 struct ext2_inode *inode);
1431 extern int ext2fs_parse_version_string(const char *ver_string);
1432 extern int ext2fs_get_library_version(const char **ver_string,
1433 const char **date_string);
1435 /* write_bb_file.c */
1436 extern errcode_t ext2fs_write_bb_FILE(ext2_badblocks_list bb_list,
1441 /* inline functions */
1442 #ifdef NO_INLINE_FUNCS
1443 extern errcode_t ext2fs_get_mem(unsigned long size, void *ptr);
1444 extern errcode_t ext2fs_get_memzero(unsigned long size, void *ptr);
1445 extern errcode_t ext2fs_get_array(unsigned long count,
1446 unsigned long size, void *ptr);
1447 extern errcode_t ext2fs_get_arrayzero(unsigned long count,
1448 unsigned long size, void *ptr);
1449 extern errcode_t ext2fs_free_mem(void *ptr);
1450 extern errcode_t ext2fs_resize_mem(unsigned long old_size,
1451 unsigned long size, void *ptr);
1452 extern void ext2fs_mark_super_dirty(ext2_filsys fs);
1453 extern void ext2fs_mark_changed(ext2_filsys fs);
1454 extern int ext2fs_test_changed(ext2_filsys fs);
1455 extern void ext2fs_mark_valid(ext2_filsys fs);
1456 extern void ext2fs_unmark_valid(ext2_filsys fs);
1457 extern int ext2fs_test_valid(ext2_filsys fs);
1458 extern void ext2fs_mark_ib_dirty(ext2_filsys fs);
1459 extern void ext2fs_mark_bb_dirty(ext2_filsys fs);
1460 extern int ext2fs_test_ib_dirty(ext2_filsys fs);
1461 extern int ext2fs_test_bb_dirty(ext2_filsys fs);
1462 extern int ext2fs_group_of_blk(ext2_filsys fs, blk_t blk);
1463 extern int ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino);
1464 extern blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group);
1465 extern blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group);
1466 extern blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
1467 struct ext2_inode *inode);
1468 extern unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b);
1469 extern __u64 ext2fs_div64_ceil(__u64 a, __u64 b);
1473 * The actual inlined functions definitions themselves...
1475 * If NO_INLINE_FUNCS is defined, then we won't try to do inline
1478 #if (defined(INCLUDE_INLINE_FUNCS) || !defined(NO_INLINE_FUNCS))
1479 #ifdef INCLUDE_INLINE_FUNCS
1480 #define _INLINE_ extern
1482 #if (__STDC_VERSION__ >= 199901L)
1483 #define _INLINE_ inline
1486 #define _INLINE_ extern __inline__
1487 #else /* For Watcom C */
1488 #define _INLINE_ extern inline
1489 #endif /* __GNUC__ */
1490 #endif /* __STDC_VERSION__ >= 199901L */
1493 #ifndef EXT2_CUSTOM_MEMORY_ROUTINES
1498 _INLINE_ errcode_t ext2fs_get_mem(unsigned long size, void *ptr)
1504 return EXT2_ET_NO_MEMORY;
1505 memcpy(ptr, &pp, sizeof (pp));
1509 _INLINE_ errcode_t ext2fs_get_memzero(unsigned long size, void *ptr)
1515 return EXT2_ET_NO_MEMORY;
1516 memset(pp, 0, size);
1517 memcpy(ptr, &pp, sizeof(pp));
1521 _INLINE_ errcode_t ext2fs_get_array(unsigned long count, unsigned long size, void *ptr)
1523 if (count && (-1UL)/count<size)
1524 return EXT2_ET_NO_MEMORY;
1525 return ext2fs_get_mem(count*size, ptr);
1528 _INLINE_ errcode_t ext2fs_get_arrayzero(unsigned long count,
1529 unsigned long size, void *ptr)
1533 if (count && (-1UL)/count<size)
1534 return EXT2_ET_NO_MEMORY;
1535 pp = calloc(count, size);
1537 return EXT2_ET_NO_MEMORY;
1538 memcpy(ptr, &pp, sizeof(pp));
1545 _INLINE_ errcode_t ext2fs_free_mem(void *ptr)
1549 memcpy(&p, ptr, sizeof(p));
1552 memcpy(ptr, &p, sizeof(p));
1559 _INLINE_ errcode_t ext2fs_resize_mem(unsigned long EXT2FS_ATTR((unused)) old_size,
1560 unsigned long size, void *ptr)
1564 /* Use "memcpy" for pointer assignments here to avoid problems
1565 * with C99 strict type aliasing rules. */
1566 memcpy(&p, ptr, sizeof(p));
1567 p = realloc(p, size);
1569 return EXT2_ET_NO_MEMORY;
1570 memcpy(ptr, &p, sizeof(p));
1573 #endif /* Custom memory routines */
1576 * Mark a filesystem superblock as dirty
1578 _INLINE_ void ext2fs_mark_super_dirty(ext2_filsys fs)
1580 fs->flags |= EXT2_FLAG_DIRTY | EXT2_FLAG_CHANGED;
1584 * Mark a filesystem as changed
1586 _INLINE_ void ext2fs_mark_changed(ext2_filsys fs)
1588 fs->flags |= EXT2_FLAG_CHANGED;
1592 * Check to see if a filesystem has changed
1594 _INLINE_ int ext2fs_test_changed(ext2_filsys fs)
1596 return (fs->flags & EXT2_FLAG_CHANGED);
1600 * Mark a filesystem as valid
1602 _INLINE_ void ext2fs_mark_valid(ext2_filsys fs)
1604 fs->flags |= EXT2_FLAG_VALID;
1608 * Mark a filesystem as NOT valid
1610 _INLINE_ void ext2fs_unmark_valid(ext2_filsys fs)
1612 fs->flags &= ~EXT2_FLAG_VALID;
1616 * Check to see if a filesystem is valid
1618 _INLINE_ int ext2fs_test_valid(ext2_filsys fs)
1620 return (fs->flags & EXT2_FLAG_VALID);
1624 * Mark the inode bitmap as dirty
1626 _INLINE_ void ext2fs_mark_ib_dirty(ext2_filsys fs)
1628 fs->flags |= EXT2_FLAG_IB_DIRTY | EXT2_FLAG_CHANGED;
1632 * Mark the block bitmap as dirty
1634 _INLINE_ void ext2fs_mark_bb_dirty(ext2_filsys fs)
1636 fs->flags |= EXT2_FLAG_BB_DIRTY | EXT2_FLAG_CHANGED;
1640 * Check to see if a filesystem's inode bitmap is dirty
1642 _INLINE_ int ext2fs_test_ib_dirty(ext2_filsys fs)
1644 return (fs->flags & EXT2_FLAG_IB_DIRTY);
1648 * Check to see if a filesystem's block bitmap is dirty
1650 _INLINE_ int ext2fs_test_bb_dirty(ext2_filsys fs)
1652 return (fs->flags & EXT2_FLAG_BB_DIRTY);
1656 * Return the group # of a block
1658 _INLINE_ int ext2fs_group_of_blk(ext2_filsys fs, blk_t blk)
1660 return ext2fs_group_of_blk2(fs, blk);
1663 * Return the group # of an inode number
1665 _INLINE_ int ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino)
1667 return (ino - 1) / fs->super->s_inodes_per_group;
1671 * Return the first block (inclusive) in a group
1673 _INLINE_ blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group)
1675 return ext2fs_group_first_block2(fs, group);
1679 * Return the last block (inclusive) in a group
1681 _INLINE_ blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group)
1683 return ext2fs_group_last_block2(fs, group);
1686 _INLINE_ blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
1687 struct ext2_inode *inode)
1689 return ext2fs_inode_data_blocks2(fs, inode);
1693 * This is an efficient, overflow safe way of calculating ceil((1.0 * a) / b)
1695 _INLINE_ unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b)
1699 return ((a - 1) / b) + 1;
1702 _INLINE_ __u64 ext2fs_div64_ceil(__u64 a, __u64 b)
1706 return ((a - 1) / b) + 1;
1716 #endif /* _EXT2FS_EXT2FS_H */