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
42 #define UUID_STR_SIZE 37
45 * The last ext2fs revision level that this version of the library is
48 #define EXT2_LIB_CURRENT_REV EXT2_DYNAMIC_REV
50 #ifdef HAVE_SYS_TYPES_H
51 #include <sys/types.h>
59 #if EXT2_FLAT_INCLUDES
62 #include "ext3_extents.h"
64 #include <ext2fs/ext2_types.h>
65 #include <ext2fs/ext2_fs.h>
66 #include <ext2fs/ext3_extents.h>
67 #endif /* EXT2_FLAT_INCLUDES */
69 #ifdef __CHECK_ENDIAN__
70 #define __bitwise __attribute__((bitwise))
75 typedef __u32 __bitwise ext2_ino_t;
76 typedef __u32 __bitwise blk_t;
77 typedef __u64 __bitwise blk64_t;
78 typedef __u32 __bitwise dgrp_t;
79 typedef __u32 __bitwise ext2_off_t;
80 typedef __u64 __bitwise ext2_off64_t;
81 typedef __s64 __bitwise e2_blkcnt_t;
82 typedef __u32 __bitwise ext2_dirhash_t;
84 #if EXT2_FLAT_INCLUDES
88 #include "ext2_ext_attr.h"
90 #include <et/com_err.h>
91 #include <ext2fs/ext2_io.h>
92 #include <ext2fs/ext2_err.h>
93 #include <ext2fs/ext2_ext_attr.h>
97 * Portability help for Microsoft Visual C++
100 #define EXT2_QSORT_TYPE int __cdecl
102 #define EXT2_QSORT_TYPE int
105 typedef struct struct_ext2_filsys *ext2_filsys;
107 #define EXT2FS_MARK_ERROR 0
108 #define EXT2FS_UNMARK_ERROR 1
109 #define EXT2FS_TEST_ERROR 2
111 typedef struct ext2fs_struct_generic_bitmap *ext2fs_generic_bitmap;
112 typedef struct ext2fs_struct_generic_bitmap *ext2fs_inode_bitmap;
113 typedef struct ext2fs_struct_generic_bitmap *ext2fs_block_bitmap;
115 #define EXT2_FIRST_INODE(s) EXT2_FIRST_INO(s)
119 * Badblocks list definitions
122 typedef struct ext2_struct_u32_list *ext2_badblocks_list;
123 typedef struct ext2_struct_u32_iterate *ext2_badblocks_iterate;
125 typedef struct ext2_struct_u32_list *ext2_u32_list;
126 typedef struct ext2_struct_u32_iterate *ext2_u32_iterate;
129 typedef struct ext2_struct_u32_list *badblocks_list;
130 typedef struct ext2_struct_u32_iterate *badblocks_iterate;
132 #define BADBLOCKS_FLAG_DIRTY 1
135 * ext2_dblist structure and abstractions (see dblist.c)
137 struct ext2_db_entry2 {
140 e2_blkcnt_t blockcnt;
143 /* Ye Olde 32-bit version */
144 struct ext2_db_entry {
150 typedef struct ext2_struct_dblist *ext2_dblist;
152 #define DBLIST_ABORT 1
155 * ext2_fileio definitions
158 #define EXT2_FILE_WRITE 0x0001
159 #define EXT2_FILE_CREATE 0x0002
161 #define EXT2_FILE_MASK 0x00FF
163 #define EXT2_FILE_BUF_DIRTY 0x4000
164 #define EXT2_FILE_BUF_VALID 0x2000
166 typedef struct ext2_file *ext2_file_t;
168 #define EXT2_SEEK_SET 0
169 #define EXT2_SEEK_CUR 1
170 #define EXT2_SEEK_END 2
173 * Flags for the ext2_filsys structure and for ext2fs_open()
175 #define EXT2_FLAG_RW 0x01
176 #define EXT2_FLAG_CHANGED 0x02
177 #define EXT2_FLAG_DIRTY 0x04
178 #define EXT2_FLAG_VALID 0x08
179 #define EXT2_FLAG_IB_DIRTY 0x10
180 #define EXT2_FLAG_BB_DIRTY 0x20
181 #define EXT2_FLAG_SWAP_BYTES 0x40
182 #define EXT2_FLAG_SWAP_BYTES_READ 0x80
183 #define EXT2_FLAG_SWAP_BYTES_WRITE 0x100
184 #define EXT2_FLAG_MASTER_SB_ONLY 0x200
185 #define EXT2_FLAG_FORCE 0x400
186 #define EXT2_FLAG_SUPER_ONLY 0x800
187 #define EXT2_FLAG_JOURNAL_DEV_OK 0x1000
188 #define EXT2_FLAG_IMAGE_FILE 0x2000
189 #define EXT2_FLAG_EXCLUSIVE 0x4000
190 #define EXT2_FLAG_SOFTSUPP_FEATURES 0x8000
191 #define EXT2_FLAG_NOFREE_ON_ERROR 0x10000
192 #define EXT2_FLAG_64BITS 0x20000
193 #define EXT2_FLAG_PRINT_PROGRESS 0x40000
194 #define EXT2_FLAG_DIRECT_IO 0x80000
195 #define EXT2_FLAG_SKIP_MMP 0x100000
198 * Special flag in the ext2 inode i_flag field that means that this is
199 * a new inode. (So that ext2_write_inode() can clear extra fields.)
201 #define EXT2_NEW_INODE_FL 0x80000000
204 * Flags for mkjournal
206 #define EXT2_MKJOURNAL_V1_SUPER 0x0000001 /* create V1 superblock (deprecated) */
207 #define EXT2_MKJOURNAL_LAZYINIT 0x0000002 /* don't zero journal inode before use*/
208 #define EXT2_MKJOURNAL_NO_MNT_CHECK 0x0000004 /* don't check mount status */
210 struct opaque_ext2_group_desc;
212 struct struct_ext2_filsys {
217 struct ext2_super_block * super;
218 unsigned int blocksize;
220 dgrp_t group_desc_count;
221 unsigned long desc_blocks;
222 struct opaque_ext2_group_desc * group_desc;
223 unsigned int inode_blocks_per_group;
224 ext2fs_inode_bitmap inode_map;
225 ext2fs_block_bitmap block_map;
226 /* XXX FIXME-64: not 64-bit safe, but not used? */
227 errcode_t (*get_blocks)(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
228 errcode_t (*check_directory)(ext2_filsys fs, ext2_ino_t ino);
229 errcode_t (*write_bitmaps)(ext2_filsys fs);
230 errcode_t (*read_inode)(ext2_filsys fs, ext2_ino_t ino,
231 struct ext2_inode *inode);
232 errcode_t (*write_inode)(ext2_filsys fs, ext2_ino_t ino,
233 struct ext2_inode *inode);
234 ext2_badblocks_list badblocks;
236 __u32 stride; /* for mke2fs */
237 struct ext2_super_block * orig_super;
238 struct ext2_image_hdr * image_header;
241 int cluster_ratio_bits;
242 __u16 default_bitmap_type;
245 * Reserved for future expansion
250 * Reserved for the use of the calling application.
257 struct ext2_inode_cache *icache;
261 * More callback functions
263 errcode_t (*get_alloc_block)(ext2_filsys fs, blk64_t goal,
265 void (*block_alloc_stats)(ext2_filsys fs, blk64_t blk, int inuse);
268 * Buffers for Multiple mount protection(MMP) block.
275 * Time at which e2fsck last updated the MMP block.
277 long mmp_last_written;
280 #if EXT2_FLAT_INCLUDES
281 #include "e2_bitops.h"
283 #include <ext2fs/bitops.h>
287 * 64-bit bitmap backend types
289 #define EXT2FS_BMAP64_BITARRAY 1
290 #define EXT2FS_BMAP64_RBTREE 2
291 #define EXT2FS_BMAP64_AUTODIR 3
294 * Return flags for the block iterator functions
296 #define BLOCK_CHANGED 1
297 #define BLOCK_ABORT 2
298 #define BLOCK_ERROR 4
301 * Block interate flags
303 * BLOCK_FLAG_APPEND, or BLOCK_FLAG_HOLE, indicates that the interator
304 * function should be called on blocks where the block number is zero.
305 * This is used by ext2fs_expand_dir() to be able to add a new block
306 * to an inode. It can also be used for programs that want to be able
307 * to deal with files that contain "holes".
309 * BLOCK_FLAG_DEPTH_TRAVERSE indicates that the iterator function for
310 * the indirect, doubly indirect, etc. blocks should be called after
311 * all of the blocks containined in the indirect blocks are processed.
312 * This is useful if you are going to be deallocating blocks from an
315 * BLOCK_FLAG_DATA_ONLY indicates that the iterator function should be
316 * called for data blocks only.
318 * BLOCK_FLAG_READ_ONLY is a promise by the caller that it will not
319 * modify returned block number.
321 * BLOCK_FLAG_NO_LARGE is for internal use only. It informs
322 * ext2fs_block_iterate2 that large files won't be accepted.
324 #define BLOCK_FLAG_APPEND 1
325 #define BLOCK_FLAG_HOLE 1
326 #define BLOCK_FLAG_DEPTH_TRAVERSE 2
327 #define BLOCK_FLAG_DATA_ONLY 4
328 #define BLOCK_FLAG_READ_ONLY 8
330 #define BLOCK_FLAG_NO_LARGE 0x1000
333 * Magic "block count" return values for the block iterator function.
335 #define BLOCK_COUNT_IND (-1)
336 #define BLOCK_COUNT_DIND (-2)
337 #define BLOCK_COUNT_TIND (-3)
338 #define BLOCK_COUNT_TRANSLATOR (-4)
342 * Flags for ext2fs_move_blocks
344 #define EXT2_BMOVE_GET_DBLIST 0x0001
345 #define EXT2_BMOVE_DEBUG 0x0002
349 * Generic (non-filesystem layout specific) extents structure
352 #define EXT2_EXTENT_FLAGS_LEAF 0x0001
353 #define EXT2_EXTENT_FLAGS_UNINIT 0x0002
354 #define EXT2_EXTENT_FLAGS_SECOND_VISIT 0x0004
356 struct ext2fs_extent {
357 blk64_t e_pblk; /* first physical block */
358 blk64_t e_lblk; /* first logical block extent covers */
359 __u32 e_len; /* number of blocks covered by extent */
360 __u32 e_flags; /* extent flags */
363 typedef struct ext2_extent_handle *ext2_extent_handle_t;
364 typedef struct ext2_extent_path *ext2_extent_path_t;
367 * Flags used by ext2fs_extent_get()
369 #define EXT2_EXTENT_CURRENT 0x0000
370 #define EXT2_EXTENT_MOVE_MASK 0x000F
371 #define EXT2_EXTENT_ROOT 0x0001
372 #define EXT2_EXTENT_LAST_LEAF 0x0002
373 #define EXT2_EXTENT_FIRST_SIB 0x0003
374 #define EXT2_EXTENT_LAST_SIB 0x0004
375 #define EXT2_EXTENT_NEXT_SIB 0x0005
376 #define EXT2_EXTENT_PREV_SIB 0x0006
377 #define EXT2_EXTENT_NEXT_LEAF 0x0007
378 #define EXT2_EXTENT_PREV_LEAF 0x0008
379 #define EXT2_EXTENT_NEXT 0x0009
380 #define EXT2_EXTENT_PREV 0x000A
381 #define EXT2_EXTENT_UP 0x000B
382 #define EXT2_EXTENT_DOWN 0x000C
383 #define EXT2_EXTENT_DOWN_AND_LAST 0x000D
386 * Flags used by ext2fs_extent_insert()
388 #define EXT2_EXTENT_INSERT_AFTER 0x0001 /* insert after handle loc'n */
389 #define EXT2_EXTENT_INSERT_NOSPLIT 0x0002 /* insert may not cause split */
392 * Flags used by ext2fs_extent_delete()
394 #define EXT2_EXTENT_DELETE_KEEP_EMPTY 0x001 /* keep node if last extnt gone */
397 * Flags used by ext2fs_extent_set_bmap()
399 #define EXT2_EXTENT_SET_BMAP_UNINIT 0x0001
402 * Data structure returned by ext2fs_extent_get_info()
404 struct ext2_extent_info {
414 __u32 max_uninit_len;
418 * Flags for directory block reading and writing functions
420 #define EXT2_DIRBLOCK_V2_STRUCT 0x0001
423 * Return flags for the directory iterator functions
425 #define DIRENT_CHANGED 1
426 #define DIRENT_ABORT 2
427 #define DIRENT_ERROR 3
430 * Directory iterator flags
433 #define DIRENT_FLAG_INCLUDE_EMPTY 1
434 #define DIRENT_FLAG_INCLUDE_REMOVED 2
436 #define DIRENT_DOT_FILE 1
437 #define DIRENT_DOT_DOT_FILE 2
438 #define DIRENT_OTHER_FILE 3
439 #define DIRENT_DELETED_FILE 4
442 * Inode scan definitions
444 typedef struct ext2_struct_inode_scan *ext2_inode_scan;
449 #define EXT2_SF_CHK_BADBLOCKS 0x0001
450 #define EXT2_SF_BAD_INODE_BLK 0x0002
451 #define EXT2_SF_BAD_EXTRA_BYTES 0x0004
452 #define EXT2_SF_SKIP_MISSING_ITABLE 0x0008
453 #define EXT2_SF_DO_LAZY 0x0010
456 * ext2fs_check_if_mounted flags
458 #define EXT2_MF_MOUNTED 1
459 #define EXT2_MF_ISROOT 2
460 #define EXT2_MF_READONLY 4
461 #define EXT2_MF_SWAP 8
462 #define EXT2_MF_BUSY 16
465 * Ext2/linux mode flags. We define them here so that we don't need
466 * to depend on the OS's sys/stat.h, since we may be compiling on a
469 #define LINUX_S_IFMT 00170000
470 #define LINUX_S_IFSOCK 0140000
471 #define LINUX_S_IFLNK 0120000
472 #define LINUX_S_IFREG 0100000
473 #define LINUX_S_IFBLK 0060000
474 #define LINUX_S_IFDIR 0040000
475 #define LINUX_S_IFCHR 0020000
476 #define LINUX_S_IFIFO 0010000
477 #define LINUX_S_ISUID 0004000
478 #define LINUX_S_ISGID 0002000
479 #define LINUX_S_ISVTX 0001000
481 #define LINUX_S_IRWXU 00700
482 #define LINUX_S_IRUSR 00400
483 #define LINUX_S_IWUSR 00200
484 #define LINUX_S_IXUSR 00100
486 #define LINUX_S_IRWXG 00070
487 #define LINUX_S_IRGRP 00040
488 #define LINUX_S_IWGRP 00020
489 #define LINUX_S_IXGRP 00010
491 #define LINUX_S_IRWXO 00007
492 #define LINUX_S_IROTH 00004
493 #define LINUX_S_IWOTH 00002
494 #define LINUX_S_IXOTH 00001
496 #define LINUX_S_ISLNK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFLNK)
497 #define LINUX_S_ISREG(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFREG)
498 #define LINUX_S_ISDIR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFDIR)
499 #define LINUX_S_ISCHR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFCHR)
500 #define LINUX_S_ISBLK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFBLK)
501 #define LINUX_S_ISFIFO(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFIFO)
502 #define LINUX_S_ISSOCK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFSOCK)
505 * ext2 size of an inode
507 #define EXT2_I_SIZE(i) ((i)->i_size | ((__u64) (i)->i_size_high << 32))
510 * ext2_icount_t abstraction
512 #define EXT2_ICOUNT_OPT_INCREMENT 0x01
514 typedef struct ext2_icount *ext2_icount_t;
517 * Flags for ext2fs_bmap
519 #define BMAP_ALLOC 0x0001
520 #define BMAP_SET 0x0002
523 * Returned flags from ext2fs_bmap
525 #define BMAP_RET_UNINIT 0x0001
528 * Flags for imager.c functions
530 #define IMAGER_FLAG_INODEMAP 1
531 #define IMAGER_FLAG_SPARSEWRITE 2
534 * For checking structure magic numbers...
537 #define EXT2_CHECK_MAGIC(struct, code) \
538 if ((struct)->magic != (code)) return (code)
542 * For ext2 compression support
544 #define EXT2FS_COMPRESSED_BLKADDR ((blk_t) -1)
545 #define HOLE_BLKADDR(_b) ((_b) == 0 || (_b) == EXT2FS_COMPRESSED_BLKADDR)
548 * Features supported by this version of the library
550 #define EXT2_LIB_FEATURE_COMPAT_SUPP (EXT2_FEATURE_COMPAT_DIR_PREALLOC|\
551 EXT2_FEATURE_COMPAT_IMAGIC_INODES|\
552 EXT3_FEATURE_COMPAT_HAS_JOURNAL|\
553 EXT2_FEATURE_COMPAT_RESIZE_INODE|\
554 EXT2_FEATURE_COMPAT_DIR_INDEX|\
555 EXT2_FEATURE_COMPAT_EXT_ATTR|\
556 EXT4_FEATURE_COMPAT_SPARSE_SUPER2)
558 /* This #ifdef is temporary until compression is fully supported */
559 #ifdef ENABLE_COMPRESSION
560 #ifndef I_KNOW_THAT_COMPRESSION_IS_EXPERIMENTAL
561 /* If the below warning bugs you, then have
562 `CPPFLAGS=-DI_KNOW_THAT_COMPRESSION_IS_EXPERIMENTAL' in your
563 environment at configure time. */
564 #warning "Compression support is experimental"
566 #define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\
567 EXT2_FEATURE_INCOMPAT_COMPRESSION|\
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)
576 #define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\
577 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\
578 EXT2_FEATURE_INCOMPAT_META_BG|\
579 EXT3_FEATURE_INCOMPAT_RECOVER|\
580 EXT3_FEATURE_INCOMPAT_EXTENTS|\
581 EXT4_FEATURE_INCOMPAT_FLEX_BG|\
582 EXT4_FEATURE_INCOMPAT_MMP|\
583 EXT4_FEATURE_INCOMPAT_64BIT)
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|\
593 EXT4_FEATURE_RO_COMPAT_QUOTA)
595 #define EXT2_LIB_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|\
596 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|\
597 EXT2_FEATURE_RO_COMPAT_LARGE_FILE|\
598 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|\
599 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|\
600 EXT4_FEATURE_RO_COMPAT_GDT_CSUM|\
601 EXT4_FEATURE_RO_COMPAT_BIGALLOC)
605 * These features are only allowed if EXT2_FLAG_SOFTSUPP_FEATURES is passed
608 #define EXT2_LIB_SOFTSUPP_INCOMPAT (0)
609 #define EXT2_LIB_SOFTSUPP_RO_COMPAT (EXT4_FEATURE_RO_COMPAT_REPLICA)
612 /* Translate a block number to a cluster number */
613 #define EXT2FS_CLUSTER_RATIO(fs) (1 << (fs)->cluster_ratio_bits)
614 #define EXT2FS_CLUSTER_MASK(fs) (EXT2FS_CLUSTER_RATIO(fs) - 1)
615 #define EXT2FS_B2C(fs, blk) ((blk) >> (fs)->cluster_ratio_bits)
616 /* Translate a cluster number to a block number */
617 #define EXT2FS_C2B(fs, cluster) ((cluster) << (fs)->cluster_ratio_bits)
618 /* Translate # of blks to # of clusters */
619 #define EXT2FS_NUM_B2C(fs, blks) (((blks) + EXT2FS_CLUSTER_MASK(fs)) >> \
620 (fs)->cluster_ratio_bits)
622 #if defined(HAVE_FSTAT64) && !defined(__OSX_AVAILABLE_BUT_DEPRECATED)
623 typedef struct stat64 ext2fs_struct_stat;
625 typedef struct stat ext2fs_struct_stat;
629 * For ext2fs_close2() and ext2fs_flush2(), this flag allows you to
630 * avoid the fsync call.
632 #define EXT2_FLAG_FLUSH_NO_SYNC 1
635 * function prototypes
638 /* The LARGE_FILE feature should be set if we have stored files 2GB+ in size */
639 static inline int ext2fs_needs_large_file_feature(unsigned long long file_size)
641 return file_size >= 0x80000000ULL;
645 extern errcode_t ext2fs_new_inode(ext2_filsys fs, ext2_ino_t dir, int mode,
646 ext2fs_inode_bitmap map, ext2_ino_t *ret);
647 extern errcode_t ext2fs_new_block(ext2_filsys fs, blk_t goal,
648 ext2fs_block_bitmap map, blk_t *ret);
649 extern errcode_t ext2fs_new_block2(ext2_filsys fs, blk64_t goal,
650 ext2fs_block_bitmap map, blk64_t *ret);
651 extern errcode_t ext2fs_get_free_blocks(ext2_filsys fs, blk_t start,
652 blk_t finish, int num,
653 ext2fs_block_bitmap map,
655 extern errcode_t ext2fs_get_free_blocks2(ext2_filsys fs, blk64_t start,
656 blk64_t finish, int num,
657 ext2fs_block_bitmap map,
659 extern errcode_t ext2fs_alloc_block(ext2_filsys fs, blk_t goal,
660 char *block_buf, blk_t *ret);
661 extern errcode_t ext2fs_alloc_block2(ext2_filsys fs, blk64_t goal,
662 char *block_buf, blk64_t *ret);
663 extern void ext2fs_set_alloc_block_callback(ext2_filsys fs,
664 errcode_t (*func)(ext2_filsys fs,
667 errcode_t (**old)(ext2_filsys fs,
672 extern int ext2fs_reserve_super_and_bgd(ext2_filsys fs,
674 ext2fs_block_bitmap bmap);
675 extern void ext2fs_set_block_alloc_stats_callback(ext2_filsys fs,
676 void (*func)(ext2_filsys fs,
679 void (**old)(ext2_filsys fs,
684 void ext2fs_inode_alloc_stats(ext2_filsys fs, ext2_ino_t ino, int inuse);
685 void ext2fs_inode_alloc_stats2(ext2_filsys fs, ext2_ino_t ino,
686 int inuse, int isdir);
687 void ext2fs_block_alloc_stats(ext2_filsys fs, blk_t blk, int inuse);
688 void ext2fs_block_alloc_stats2(ext2_filsys fs, blk64_t blk, int inuse);
689 void ext2fs_block_alloc_stats_range(ext2_filsys fs, blk64_t blk,
690 blk_t num, int inuse);
693 extern errcode_t ext2fs_allocate_tables(ext2_filsys fs);
694 extern errcode_t ext2fs_allocate_group_table(ext2_filsys fs, dgrp_t group,
695 ext2fs_block_bitmap bmap);
698 extern errcode_t ext2fs_u32_list_create(ext2_u32_list *ret, int size);
699 extern errcode_t ext2fs_u32_list_add(ext2_u32_list bb, __u32 blk);
700 extern int ext2fs_u32_list_find(ext2_u32_list bb, __u32 blk);
701 extern int ext2fs_u32_list_test(ext2_u32_list bb, blk_t blk);
702 extern errcode_t ext2fs_u32_list_iterate_begin(ext2_u32_list bb,
703 ext2_u32_iterate *ret);
704 extern int ext2fs_u32_list_iterate(ext2_u32_iterate iter, blk_t *blk);
705 extern void ext2fs_u32_list_iterate_end(ext2_u32_iterate iter);
706 extern errcode_t ext2fs_u32_copy(ext2_u32_list src, ext2_u32_list *dest);
707 extern int ext2fs_u32_list_equal(ext2_u32_list bb1, ext2_u32_list bb2);
709 extern errcode_t ext2fs_badblocks_list_create(ext2_badblocks_list *ret,
711 extern errcode_t ext2fs_badblocks_list_add(ext2_badblocks_list bb,
713 extern int ext2fs_badblocks_list_test(ext2_badblocks_list bb,
715 extern int ext2fs_u32_list_del(ext2_u32_list bb, __u32 blk);
716 extern void ext2fs_badblocks_list_del(ext2_u32_list bb, __u32 blk);
718 ext2fs_badblocks_list_iterate_begin(ext2_badblocks_list bb,
719 ext2_badblocks_iterate *ret);
720 extern int ext2fs_badblocks_list_iterate(ext2_badblocks_iterate iter,
722 extern void ext2fs_badblocks_list_iterate_end(ext2_badblocks_iterate iter);
723 extern errcode_t ext2fs_badblocks_copy(ext2_badblocks_list src,
724 ext2_badblocks_list *dest);
725 extern int ext2fs_badblocks_equal(ext2_badblocks_list bb1,
726 ext2_badblocks_list bb2);
727 extern int ext2fs_u32_list_count(ext2_u32_list bb);
730 extern errcode_t badblocks_list_create(badblocks_list *ret, int size);
731 extern errcode_t badblocks_list_add(badblocks_list bb, blk_t blk);
732 extern int badblocks_list_test(badblocks_list bb, blk_t blk);
733 extern errcode_t badblocks_list_iterate_begin(badblocks_list bb,
734 badblocks_iterate *ret);
735 extern int badblocks_list_iterate(badblocks_iterate iter, blk_t *blk);
736 extern void badblocks_list_iterate_end(badblocks_iterate iter);
737 extern void badblocks_list_free(badblocks_list bb);
740 extern errcode_t ext2fs_update_bb_inode(ext2_filsys fs,
741 ext2_badblocks_list bb_list);
744 extern void ext2fs_free_block_bitmap(ext2fs_block_bitmap bitmap);
745 extern void ext2fs_free_inode_bitmap(ext2fs_inode_bitmap bitmap);
746 extern errcode_t ext2fs_copy_bitmap(ext2fs_generic_bitmap src,
747 ext2fs_generic_bitmap *dest);
748 extern errcode_t ext2fs_write_inode_bitmap(ext2_filsys fs);
749 extern errcode_t ext2fs_write_block_bitmap (ext2_filsys fs);
750 extern errcode_t ext2fs_read_inode_bitmap (ext2_filsys fs);
751 extern errcode_t ext2fs_read_block_bitmap(ext2_filsys fs);
752 extern errcode_t ext2fs_allocate_block_bitmap(ext2_filsys fs,
754 ext2fs_block_bitmap *ret);
755 extern errcode_t ext2fs_allocate_subcluster_bitmap(ext2_filsys fs,
757 ext2fs_block_bitmap *ret);
758 extern int ext2fs_get_bitmap_granularity(ext2fs_block_bitmap bitmap);
759 extern errcode_t ext2fs_allocate_inode_bitmap(ext2_filsys fs,
761 ext2fs_inode_bitmap *ret);
762 extern errcode_t ext2fs_fudge_inode_bitmap_end(ext2fs_inode_bitmap bitmap,
763 ext2_ino_t end, ext2_ino_t *oend);
764 extern errcode_t ext2fs_fudge_block_bitmap_end(ext2fs_block_bitmap bitmap,
765 blk_t end, blk_t *oend);
766 extern errcode_t ext2fs_fudge_block_bitmap_end2(ext2fs_block_bitmap bitmap,
767 blk64_t end, blk64_t *oend);
768 extern void ext2fs_clear_inode_bitmap(ext2fs_inode_bitmap bitmap);
769 extern void ext2fs_clear_block_bitmap(ext2fs_block_bitmap bitmap);
770 extern errcode_t ext2fs_read_bitmaps(ext2_filsys fs);
771 extern errcode_t ext2fs_write_bitmaps(ext2_filsys fs);
772 extern errcode_t ext2fs_resize_inode_bitmap(__u32 new_end, __u32 new_real_end,
773 ext2fs_inode_bitmap bmap);
774 extern errcode_t ext2fs_resize_inode_bitmap2(__u64 new_end,
776 ext2fs_inode_bitmap bmap);
777 extern errcode_t ext2fs_resize_block_bitmap(__u32 new_end, __u32 new_real_end,
778 ext2fs_block_bitmap bmap);
779 extern errcode_t ext2fs_resize_block_bitmap2(__u64 new_end,
781 ext2fs_block_bitmap bmap);
782 extern errcode_t ext2fs_compare_block_bitmap(ext2fs_block_bitmap bm1,
783 ext2fs_block_bitmap bm2);
784 extern errcode_t ext2fs_compare_inode_bitmap(ext2fs_inode_bitmap bm1,
785 ext2fs_inode_bitmap bm2);
786 extern errcode_t ext2fs_set_inode_bitmap_range(ext2fs_inode_bitmap bmap,
787 ext2_ino_t start, unsigned int num,
789 extern errcode_t ext2fs_set_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
790 __u64 start, size_t num,
792 extern errcode_t ext2fs_get_inode_bitmap_range(ext2fs_inode_bitmap bmap,
793 ext2_ino_t start, unsigned int num,
795 extern errcode_t ext2fs_get_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
796 __u64 start, size_t num,
798 extern errcode_t ext2fs_set_block_bitmap_range(ext2fs_block_bitmap bmap,
799 blk_t start, unsigned int num,
801 extern errcode_t ext2fs_set_block_bitmap_range2(ext2fs_block_bitmap bmap,
802 blk64_t start, size_t num,
804 extern errcode_t ext2fs_get_block_bitmap_range(ext2fs_block_bitmap bmap,
805 blk_t start, unsigned int num,
807 extern errcode_t ext2fs_get_block_bitmap_range2(ext2fs_block_bitmap bmap,
808 blk64_t start, size_t num,
812 extern dgrp_t ext2fs_group_of_blk2(ext2_filsys fs, blk64_t);
813 extern blk64_t ext2fs_group_first_block2(ext2_filsys fs, dgrp_t group);
814 extern blk64_t ext2fs_group_last_block2(ext2_filsys fs, dgrp_t group);
815 extern int ext2fs_group_blocks_count(ext2_filsys fs, dgrp_t group);
816 extern blk64_t ext2fs_inode_data_blocks2(ext2_filsys fs,
817 struct ext2_inode *inode);
818 extern blk64_t ext2fs_inode_i_blocks(ext2_filsys fs,
819 struct ext2_inode *inode);
820 extern blk64_t ext2fs_blocks_count(struct ext2_super_block *super);
821 extern void ext2fs_blocks_count_set(struct ext2_super_block *super,
823 extern void ext2fs_blocks_count_add(struct ext2_super_block *super,
825 extern blk64_t ext2fs_r_blocks_count(struct ext2_super_block *super);
826 extern void ext2fs_r_blocks_count_set(struct ext2_super_block *super,
828 extern void ext2fs_r_blocks_count_add(struct ext2_super_block *super,
830 extern blk64_t ext2fs_free_blocks_count(struct ext2_super_block *super);
831 extern void ext2fs_free_blocks_count_set(struct ext2_super_block *super,
833 extern void ext2fs_free_blocks_count_add(struct ext2_super_block *super,
835 /* Block group descriptor accessor functions */
836 extern struct ext2_group_desc *ext2fs_group_desc(ext2_filsys fs,
837 struct opaque_ext2_group_desc *gdp,
839 extern blk64_t ext2fs_block_bitmap_loc(ext2_filsys fs, dgrp_t group);
840 extern void ext2fs_block_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
842 extern blk64_t ext2fs_inode_bitmap_loc(ext2_filsys fs, dgrp_t group);
843 extern void ext2fs_inode_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
845 extern blk64_t ext2fs_inode_table_loc(ext2_filsys fs, dgrp_t group);
846 extern void ext2fs_inode_table_loc_set(ext2_filsys fs, dgrp_t group,
848 extern __u32 ext2fs_bg_free_blocks_count(ext2_filsys fs, dgrp_t group);
849 extern void ext2fs_bg_free_blocks_count_set(ext2_filsys fs, dgrp_t group,
851 extern __u32 ext2fs_bg_free_inodes_count(ext2_filsys fs, dgrp_t group);
852 extern void ext2fs_bg_free_inodes_count_set(ext2_filsys fs, dgrp_t group,
854 extern __u32 ext2fs_bg_used_dirs_count(ext2_filsys fs, dgrp_t group);
855 extern void ext2fs_bg_used_dirs_count_set(ext2_filsys fs, dgrp_t group,
857 extern __u32 ext2fs_bg_itable_unused(ext2_filsys fs, dgrp_t group);
858 extern void ext2fs_bg_itable_unused_set(ext2_filsys fs, dgrp_t group,
860 extern __u16 ext2fs_bg_flags(ext2_filsys fs, dgrp_t group);
861 extern void ext2fs_bg_flags_zap(ext2_filsys fs, dgrp_t group);
862 extern int ext2fs_bg_flags_test(ext2_filsys fs, dgrp_t group, __u16 bg_flag);
863 extern void ext2fs_bg_flags_set(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
864 extern void ext2fs_bg_flags_clear(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
865 extern __u16 ext2fs_bg_checksum(ext2_filsys fs, dgrp_t group);
866 extern void ext2fs_bg_checksum_set(ext2_filsys fs, dgrp_t group, __u16 checksum);
867 extern blk64_t ext2fs_file_acl_block(ext2_filsys fs,
868 const struct ext2_inode *inode);
869 extern void ext2fs_file_acl_block_set(ext2_filsys fs,
870 struct ext2_inode *inode, blk64_t blk);
871 extern errcode_t ext2fs_inode_size_set(ext2_filsys fs, struct ext2_inode *inode,
875 extern errcode_t ext2fs_block_iterate(ext2_filsys fs,
879 int (*func)(ext2_filsys fs,
884 errcode_t ext2fs_block_iterate2(ext2_filsys fs,
888 int (*func)(ext2_filsys fs,
890 e2_blkcnt_t blockcnt,
895 errcode_t ext2fs_block_iterate3(ext2_filsys fs,
899 int (*func)(ext2_filsys fs,
901 e2_blkcnt_t blockcnt,
908 extern errcode_t ext2fs_bmap(ext2_filsys fs, ext2_ino_t ino,
909 struct ext2_inode *inode,
910 char *block_buf, int bmap_flags,
911 blk_t block, blk_t *phys_blk);
912 extern errcode_t ext2fs_bmap2(ext2_filsys fs, ext2_ino_t ino,
913 struct ext2_inode *inode,
914 char *block_buf, int bmap_flags, blk64_t block,
915 int *ret_flags, blk64_t *phys_blk);
916 errcode_t ext2fs_map_cluster_block(ext2_filsys fs, ext2_ino_t ino,
917 struct ext2_inode *inode, blk64_t lblk,
922 extern errcode_t ext2fs_move_blocks(ext2_filsys fs,
923 ext2fs_block_bitmap reserve,
924 ext2fs_block_bitmap alloc_map,
929 extern errcode_t ext2fs_check_desc(ext2_filsys fs);
932 extern errcode_t ext2fs_close(ext2_filsys fs);
933 extern errcode_t ext2fs_close2(ext2_filsys fs, int flags);
934 extern errcode_t ext2fs_close_free(ext2_filsys *fs);
935 extern errcode_t ext2fs_flush(ext2_filsys fs);
936 extern errcode_t ext2fs_flush2(ext2_filsys fs, int flags);
937 extern int ext2fs_bg_has_super(ext2_filsys fs, dgrp_t group_block);
938 extern errcode_t ext2fs_super_and_bgd_loc2(ext2_filsys fs,
940 blk64_t *ret_super_blk,
941 blk64_t *ret_old_desc_blk,
942 blk64_t *ret_new_desc_blk,
943 blk_t *ret_used_blks);
944 extern int ext2fs_super_and_bgd_loc(ext2_filsys fs,
946 blk_t *ret_super_blk,
947 blk_t *ret_old_desc_blk,
948 blk_t *ret_new_desc_blk,
950 extern void ext2fs_update_dynamic_rev(ext2_filsys fs);
953 extern __u32 ext2fs_crc32c_be(__u32 crc, unsigned char const *p, size_t len);
954 extern __u32 ext2fs_crc32c_le(__u32 crc, unsigned char const *p, size_t len);
957 extern void ext2fs_group_desc_csum_set(ext2_filsys fs, dgrp_t group);
958 extern int ext2fs_group_desc_csum_verify(ext2_filsys fs, dgrp_t group);
959 extern errcode_t ext2fs_set_gdt_csum(ext2_filsys fs);
960 extern __u16 ext2fs_group_desc_csum(ext2_filsys fs, dgrp_t group);
964 extern errcode_t ext2fs_get_num_dirs(ext2_filsys fs, ext2_ino_t *ret_num_dirs);
965 extern errcode_t ext2fs_init_dblist(ext2_filsys fs, ext2_dblist *ret_dblist);
966 extern errcode_t ext2fs_add_dir_block(ext2_dblist dblist, ext2_ino_t ino,
967 blk_t blk, int blockcnt);
968 extern errcode_t ext2fs_add_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
969 blk64_t blk, e2_blkcnt_t blockcnt);
970 extern void ext2fs_dblist_sort(ext2_dblist dblist,
971 EXT2_QSORT_TYPE (*sortfunc)(const void *,
973 extern void ext2fs_dblist_sort2(ext2_dblist dblist,
974 EXT2_QSORT_TYPE (*sortfunc)(const void *,
976 extern errcode_t ext2fs_dblist_iterate(ext2_dblist dblist,
977 int (*func)(ext2_filsys fs, struct ext2_db_entry *db_info,
980 extern errcode_t ext2fs_dblist_iterate2(ext2_dblist dblist,
981 int (*func)(ext2_filsys fs, struct ext2_db_entry2 *db_info,
984 extern errcode_t ext2fs_set_dir_block(ext2_dblist dblist, ext2_ino_t ino,
985 blk_t blk, int blockcnt);
986 extern errcode_t ext2fs_set_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
987 blk64_t blk, e2_blkcnt_t blockcnt);
988 extern errcode_t ext2fs_copy_dblist(ext2_dblist src,
990 extern int ext2fs_dblist_count(ext2_dblist dblist);
991 extern blk64_t ext2fs_dblist_count2(ext2_dblist dblist);
992 extern errcode_t ext2fs_dblist_get_last(ext2_dblist dblist,
993 struct ext2_db_entry **entry);
994 extern errcode_t ext2fs_dblist_get_last2(ext2_dblist dblist,
995 struct ext2_db_entry2 **entry);
996 extern errcode_t ext2fs_dblist_drop_last(ext2_dblist dblist);
1000 ext2fs_dblist_dir_iterate(ext2_dblist dblist,
1003 int (*func)(ext2_ino_t dir,
1005 struct ext2_dir_entry *dirent,
1013 extern errcode_t ext2fs_read_dir_block(ext2_filsys fs, blk_t block,
1015 extern errcode_t ext2fs_read_dir_block2(ext2_filsys fs, blk_t block,
1016 void *buf, int flags);
1017 extern errcode_t ext2fs_read_dir_block3(ext2_filsys fs, blk64_t block,
1018 void *buf, int flags);
1019 extern errcode_t ext2fs_write_dir_block(ext2_filsys fs, blk_t block,
1021 extern errcode_t ext2fs_write_dir_block2(ext2_filsys fs, blk_t block,
1022 void *buf, int flags);
1023 extern errcode_t ext2fs_write_dir_block3(ext2_filsys fs, blk64_t block,
1024 void *buf, int flags);
1027 extern errcode_t ext2fs_dirhash(int version, const char *name, int len,
1029 ext2_dirhash_t *ret_hash,
1030 ext2_dirhash_t *ret_minor_hash);
1034 extern errcode_t ext2fs_get_rec_len(ext2_filsys fs,
1035 struct ext2_dir_entry *dirent,
1036 unsigned int *rec_len);
1037 extern errcode_t ext2fs_set_rec_len(ext2_filsys fs,
1039 struct ext2_dir_entry *dirent);
1040 extern errcode_t ext2fs_dir_iterate(ext2_filsys fs,
1044 int (*func)(struct ext2_dir_entry *dirent,
1050 extern errcode_t ext2fs_dir_iterate2(ext2_filsys fs,
1054 int (*func)(ext2_ino_t dir,
1056 struct ext2_dir_entry *dirent,
1064 extern errcode_t ext2fs_dup_handle(ext2_filsys src, ext2_filsys *dest);
1067 extern errcode_t ext2fs_expand_dir(ext2_filsys fs, ext2_ino_t dir);
1070 extern __u32 ext2fs_ext_attr_hash_entry(struct ext2_ext_attr_entry *entry,
1072 extern errcode_t ext2fs_read_ext_attr(ext2_filsys fs, blk_t block, void *buf);
1073 extern errcode_t ext2fs_read_ext_attr2(ext2_filsys fs, blk64_t block,
1075 extern errcode_t ext2fs_write_ext_attr(ext2_filsys fs, blk_t block,
1077 extern errcode_t ext2fs_write_ext_attr2(ext2_filsys fs, blk64_t block,
1079 extern errcode_t ext2fs_adjust_ea_refcount(ext2_filsys fs, blk_t blk,
1081 int adjust, __u32 *newcount);
1082 extern errcode_t ext2fs_adjust_ea_refcount2(ext2_filsys fs, blk64_t blk,
1084 int adjust, __u32 *newcount);
1087 extern errcode_t ext2fs_extent_header_verify(void *ptr, int size);
1088 extern errcode_t ext2fs_extent_open(ext2_filsys fs, ext2_ino_t ino,
1089 ext2_extent_handle_t *handle);
1090 extern errcode_t ext2fs_extent_open2(ext2_filsys fs, ext2_ino_t ino,
1091 struct ext2_inode *inode,
1092 ext2_extent_handle_t *ret_handle);
1093 extern void ext2fs_extent_free(ext2_extent_handle_t handle);
1094 extern errcode_t ext2fs_extent_get(ext2_extent_handle_t handle,
1095 int flags, struct ext2fs_extent *extent);
1096 extern errcode_t ext2fs_extent_node_split(ext2_extent_handle_t handle);
1097 extern errcode_t ext2fs_extent_replace(ext2_extent_handle_t handle, int flags,
1098 struct ext2fs_extent *extent);
1099 extern errcode_t ext2fs_extent_insert(ext2_extent_handle_t handle, int flags,
1100 struct ext2fs_extent *extent);
1101 extern errcode_t ext2fs_extent_set_bmap(ext2_extent_handle_t handle,
1102 blk64_t logical, blk64_t physical,
1104 extern errcode_t ext2fs_extent_delete(ext2_extent_handle_t handle, int flags);
1105 extern errcode_t ext2fs_extent_get_info(ext2_extent_handle_t handle,
1106 struct ext2_extent_info *info);
1107 extern errcode_t ext2fs_extent_goto(ext2_extent_handle_t handle,
1109 extern errcode_t ext2fs_extent_goto2(ext2_extent_handle_t handle,
1110 int leaf_level, blk64_t blk);
1111 extern errcode_t ext2fs_extent_fix_parents(ext2_extent_handle_t handle);
1114 extern errcode_t ext2fs_file_open2(ext2_filsys fs, ext2_ino_t ino,
1115 struct ext2_inode *inode,
1116 int flags, ext2_file_t *ret);
1117 extern errcode_t ext2fs_file_open(ext2_filsys fs, ext2_ino_t ino,
1118 int flags, ext2_file_t *ret);
1119 extern ext2_filsys ext2fs_file_get_fs(ext2_file_t file);
1120 struct ext2_inode *ext2fs_file_get_inode(ext2_file_t file);
1121 extern ext2_ino_t ext2fs_file_get_inode_num(ext2_file_t file);
1122 extern errcode_t ext2fs_file_close(ext2_file_t file);
1123 extern errcode_t ext2fs_file_flush(ext2_file_t file);
1124 extern errcode_t ext2fs_file_read(ext2_file_t file, void *buf,
1125 unsigned int wanted, unsigned int *got);
1126 extern errcode_t ext2fs_file_write(ext2_file_t file, const void *buf,
1127 unsigned int nbytes, unsigned int *written);
1128 extern errcode_t ext2fs_file_llseek(ext2_file_t file, __u64 offset,
1129 int whence, __u64 *ret_pos);
1130 extern errcode_t ext2fs_file_lseek(ext2_file_t file, ext2_off_t offset,
1131 int whence, ext2_off_t *ret_pos);
1132 errcode_t ext2fs_file_get_lsize(ext2_file_t file, __u64 *ret_size);
1133 extern ext2_off_t ext2fs_file_get_size(ext2_file_t file);
1134 extern errcode_t ext2fs_file_set_size(ext2_file_t file, ext2_off_t size);
1135 extern errcode_t ext2fs_file_set_size2(ext2_file_t file, ext2_off64_t size);
1138 extern char *ext2fs_find_block_device(dev_t device);
1141 extern errcode_t ext2fs_sync_device(int fd, int flushb);
1144 extern void ext2fs_free(ext2_filsys fs);
1145 extern void ext2fs_free_dblist(ext2_dblist dblist);
1146 extern void ext2fs_badblocks_list_free(ext2_badblocks_list bb);
1147 extern void ext2fs_u32_list_free(ext2_u32_list bb);
1150 extern void ext2fs_free_generic_bitmap(ext2fs_inode_bitmap bitmap);
1151 extern errcode_t ext2fs_make_generic_bitmap(errcode_t magic, ext2_filsys fs,
1152 __u32 start, __u32 end,
1154 const char *descr, char *init_map,
1155 ext2fs_generic_bitmap *ret);
1156 extern errcode_t ext2fs_allocate_generic_bitmap(__u32 start,
1160 ext2fs_generic_bitmap *ret);
1161 extern errcode_t ext2fs_copy_generic_bitmap(ext2fs_generic_bitmap src,
1162 ext2fs_generic_bitmap *dest);
1163 extern void ext2fs_clear_generic_bitmap(ext2fs_generic_bitmap bitmap);
1164 extern errcode_t ext2fs_fudge_generic_bitmap_end(ext2fs_inode_bitmap bitmap,
1169 extern void ext2fs_set_generic_bitmap_padding(ext2fs_generic_bitmap map);
1170 extern errcode_t ext2fs_resize_generic_bitmap(errcode_t magic,
1173 ext2fs_generic_bitmap bmap);
1174 extern errcode_t ext2fs_compare_generic_bitmap(errcode_t magic, errcode_t neq,
1175 ext2fs_generic_bitmap bm1,
1176 ext2fs_generic_bitmap bm2);
1177 extern errcode_t ext2fs_get_generic_bitmap_range(ext2fs_generic_bitmap bmap,
1179 __u32 start, __u32 num,
1181 extern errcode_t ext2fs_set_generic_bitmap_range(ext2fs_generic_bitmap bmap,
1183 __u32 start, __u32 num,
1185 extern errcode_t ext2fs_find_first_zero_generic_bitmap(ext2fs_generic_bitmap bitmap,
1186 __u32 start, __u32 end,
1188 extern errcode_t ext2fs_find_first_set_generic_bitmap(ext2fs_generic_bitmap bitmap,
1189 __u32 start, __u32 end,
1192 /* gen_bitmap64.c */
1194 /* Generate and print bitmap usage statistics */
1197 void ext2fs_free_generic_bmap(ext2fs_generic_bitmap bmap);
1198 errcode_t ext2fs_alloc_generic_bmap(ext2_filsys fs, errcode_t magic,
1199 int type, __u64 start, __u64 end,
1202 ext2fs_generic_bitmap *ret);
1203 errcode_t ext2fs_copy_generic_bmap(ext2fs_generic_bitmap src,
1204 ext2fs_generic_bitmap *dest);
1205 void ext2fs_clear_generic_bmap(ext2fs_generic_bitmap bitmap);
1206 errcode_t ext2fs_fudge_generic_bmap_end(ext2fs_generic_bitmap bitmap,
1208 __u64 end, __u64 *oend);
1209 void ext2fs_set_generic_bmap_padding(ext2fs_generic_bitmap bmap);
1210 errcode_t ext2fs_resize_generic_bmap(ext2fs_generic_bitmap bmap,
1212 __u64 new_real_end);
1213 errcode_t ext2fs_compare_generic_bmap(errcode_t neq,
1214 ext2fs_generic_bitmap bm1,
1215 ext2fs_generic_bitmap bm2);
1216 errcode_t ext2fs_get_generic_bmap_range(ext2fs_generic_bitmap bmap,
1217 __u64 start, unsigned int num,
1219 errcode_t ext2fs_set_generic_bmap_range(ext2fs_generic_bitmap bmap,
1220 __u64 start, unsigned int num,
1222 errcode_t ext2fs_convert_subcluster_bitmap(ext2_filsys fs,
1223 ext2fs_block_bitmap *bitmap);
1226 extern errcode_t ext2fs_get_device_size(const char *file, int blocksize,
1228 extern errcode_t ext2fs_get_device_size2(const char *file, int blocksize,
1229 blk64_t *retblocks);
1232 extern int ext2fs_get_dio_alignment(int fd);
1233 errcode_t ext2fs_get_device_sectsize(const char *file, int *sectsize);
1234 errcode_t ext2fs_get_device_phys_sectsize(const char *file, int *sectsize);
1237 errcode_t ext2fs_iblk_add_blocks(ext2_filsys fs, struct ext2_inode *inode,
1238 blk64_t num_blocks);
1239 errcode_t ext2fs_iblk_sub_blocks(ext2_filsys fs, struct ext2_inode *inode,
1240 blk64_t num_blocks);
1241 errcode_t ext2fs_iblk_set(ext2_filsys fs, struct ext2_inode *inode, blk64_t b);
1244 extern errcode_t ext2fs_image_inode_write(ext2_filsys fs, int fd, int flags);
1245 extern errcode_t ext2fs_image_inode_read(ext2_filsys fs, int fd, int flags);
1246 extern errcode_t ext2fs_image_super_write(ext2_filsys fs, int fd, int flags);
1247 extern errcode_t ext2fs_image_super_read(ext2_filsys fs, int fd, int flags);
1248 extern errcode_t ext2fs_image_bitmap_write(ext2_filsys fs, int fd, int flags);
1249 extern errcode_t ext2fs_image_bitmap_read(ext2_filsys fs, int fd, int flags);
1252 errcode_t ext2fs_read_ind_block(ext2_filsys fs, blk_t blk, void *buf);
1253 errcode_t ext2fs_write_ind_block(ext2_filsys fs, blk_t blk, void *buf);
1256 extern errcode_t ext2fs_initialize(const char *name, int flags,
1257 struct ext2_super_block *param,
1258 io_manager manager, ext2_filsys *ret_fs);
1261 extern void ext2fs_free_icount(ext2_icount_t icount);
1262 extern errcode_t ext2fs_create_icount_tdb(ext2_filsys fs, char *tdb_dir,
1263 int flags, ext2_icount_t *ret);
1264 extern errcode_t ext2fs_create_icount2(ext2_filsys fs, int flags,
1266 ext2_icount_t hint, ext2_icount_t *ret);
1267 extern errcode_t ext2fs_create_icount(ext2_filsys fs, int flags,
1269 ext2_icount_t *ret);
1270 extern errcode_t ext2fs_icount_fetch(ext2_icount_t icount, ext2_ino_t ino,
1272 extern errcode_t ext2fs_icount_increment(ext2_icount_t icount, ext2_ino_t ino,
1274 extern errcode_t ext2fs_icount_decrement(ext2_icount_t icount, ext2_ino_t ino,
1276 extern errcode_t ext2fs_icount_store(ext2_icount_t icount, ext2_ino_t ino,
1278 extern ext2_ino_t ext2fs_get_icount_size(ext2_icount_t icount);
1279 errcode_t ext2fs_icount_validate(ext2_icount_t icount, FILE *);
1283 extern errcode_t ext2fs_get_memalign(unsigned long size,
1284 unsigned long align, void *ptr);
1287 extern errcode_t ext2fs_flush_icache(ext2_filsys fs);
1288 extern errcode_t ext2fs_get_next_inode_full(ext2_inode_scan scan,
1290 struct ext2_inode *inode,
1292 extern errcode_t ext2fs_open_inode_scan(ext2_filsys fs, int buffer_blocks,
1293 ext2_inode_scan *ret_scan);
1294 extern void ext2fs_close_inode_scan(ext2_inode_scan scan);
1295 extern errcode_t ext2fs_get_next_inode(ext2_inode_scan scan, ext2_ino_t *ino,
1296 struct ext2_inode *inode);
1297 extern errcode_t ext2fs_inode_scan_goto_blockgroup(ext2_inode_scan scan,
1299 extern void ext2fs_set_inode_callback
1300 (ext2_inode_scan scan,
1301 errcode_t (*done_group)(ext2_filsys fs,
1302 ext2_inode_scan scan,
1305 void *done_group_data);
1306 extern int ext2fs_inode_scan_flags(ext2_inode_scan scan, int set_flags,
1308 extern errcode_t ext2fs_read_inode_full(ext2_filsys fs, ext2_ino_t ino,
1309 struct ext2_inode * inode,
1311 extern errcode_t ext2fs_read_inode (ext2_filsys fs, ext2_ino_t ino,
1312 struct ext2_inode * inode);
1313 extern errcode_t ext2fs_write_inode_full(ext2_filsys fs, ext2_ino_t ino,
1314 struct ext2_inode * inode,
1316 extern errcode_t ext2fs_write_inode(ext2_filsys fs, ext2_ino_t ino,
1317 struct ext2_inode * inode);
1318 extern errcode_t ext2fs_write_new_inode(ext2_filsys fs, ext2_ino_t ino,
1319 struct ext2_inode * inode);
1320 extern errcode_t ext2fs_get_blocks(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
1321 extern errcode_t ext2fs_check_directory(ext2_filsys fs, ext2_ino_t ino);
1324 extern io_manager inode_io_manager;
1325 extern errcode_t ext2fs_inode_io_intern(ext2_filsys fs, ext2_ino_t ino,
1327 extern errcode_t ext2fs_inode_io_intern2(ext2_filsys fs, ext2_ino_t ino,
1328 struct ext2_inode *inode,
1332 extern errcode_t ext2fs_check_if_mounted(const char *file, int *mount_flags);
1333 extern errcode_t ext2fs_check_mount_point(const char *device, int *mount_flags,
1334 char *mtpt, int mtlen);
1338 * NOTE: This function removes from an inode the blocks "start", "end", and
1339 * every block in between.
1341 extern errcode_t ext2fs_punch(ext2_filsys fs, ext2_ino_t ino,
1342 struct ext2_inode *inode,
1343 char *block_buf, blk64_t start,
1347 extern errcode_t ext2fs_lookup(ext2_filsys fs, ext2_ino_t dir, const char *name,
1348 int namelen, char *buf, ext2_ino_t *inode);
1349 extern errcode_t ext2fs_namei(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1350 const char *name, ext2_ino_t *inode);
1351 errcode_t ext2fs_namei_follow(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1352 const char *name, ext2_ino_t *inode);
1353 extern errcode_t ext2fs_follow_link(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1354 ext2_ino_t inode, ext2_ino_t *res_inode);
1357 int ext2fs_native_flag(void);
1360 extern errcode_t ext2fs_new_dir_block(ext2_filsys fs, ext2_ino_t dir_ino,
1361 ext2_ino_t parent_ino, char **block);
1364 extern errcode_t ext2fs_mkdir(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t inum,
1368 extern errcode_t ext2fs_zero_blocks(ext2_filsys fs, blk_t blk, int num,
1369 blk_t *ret_blk, int *ret_count);
1370 extern errcode_t ext2fs_zero_blocks2(ext2_filsys fs, blk64_t blk, int num,
1371 blk64_t *ret_blk, int *ret_count);
1372 extern errcode_t ext2fs_create_journal_superblock(ext2_filsys fs,
1373 __u32 num_blocks, int flags,
1375 extern errcode_t ext2fs_add_journal_device(ext2_filsys fs,
1376 ext2_filsys journal_dev);
1377 extern errcode_t ext2fs_add_journal_inode(ext2_filsys fs, blk_t num_blocks,
1379 extern errcode_t ext2fs_add_journal_inode2(ext2_filsys fs, blk_t num_blocks,
1380 blk64_t goal, int flags);
1381 extern int ext2fs_default_journal_size(__u64 num_blocks);
1382 extern int ext2fs_journal_sb_start(int blocksize);
1385 extern errcode_t ext2fs_open(const char *name, int flags, int superblock,
1386 unsigned int block_size, io_manager manager,
1387 ext2_filsys *ret_fs);
1388 extern errcode_t ext2fs_open2(const char *name, const char *io_options,
1389 int flags, int superblock,
1390 unsigned int block_size, io_manager manager,
1391 ext2_filsys *ret_fs);
1393 * The dgrp_t argument to these two functions is not actually a group number
1394 * but a block number offset within a group table! Convert with the formula
1395 * (group_number / groups_per_block).
1397 extern blk64_t ext2fs_descriptor_block_loc2(ext2_filsys fs,
1398 blk64_t group_block, dgrp_t i);
1399 extern blk_t ext2fs_descriptor_block_loc(ext2_filsys fs, blk_t group_block,
1401 errcode_t ext2fs_get_data_io(ext2_filsys fs, io_channel *old_io);
1402 errcode_t ext2fs_set_data_io(ext2_filsys fs, io_channel new_io);
1403 errcode_t ext2fs_rewrite_to_io(ext2_filsys fs, io_channel new_io);
1405 /* get_pathname.c */
1406 extern errcode_t ext2fs_get_pathname(ext2_filsys fs, ext2_ino_t dir, ext2_ino_t ino,
1410 errcode_t ext2fs_link(ext2_filsys fs, ext2_ino_t dir, const char *name,
1411 ext2_ino_t ino, int flags);
1412 errcode_t ext2fs_unlink(ext2_filsys fs, ext2_ino_t dir, const char *name,
1413 ext2_ino_t ino, int flags);
1416 errcode_t ext2fs_symlink(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t ino,
1417 const char *name, char *target);
1420 errcode_t ext2fs_mmp_read(ext2_filsys fs, blk64_t mmp_blk, void *buf);
1421 errcode_t ext2fs_mmp_write(ext2_filsys fs, blk64_t mmp_blk, void *buf);
1422 errcode_t ext2fs_mmp_clear(ext2_filsys fs);
1423 errcode_t ext2fs_mmp_init(ext2_filsys fs);
1424 errcode_t ext2fs_mmp_start(ext2_filsys fs);
1425 errcode_t ext2fs_mmp_update(ext2_filsys fs);
1426 errcode_t ext2fs_mmp_stop(ext2_filsys fs);
1427 unsigned ext2fs_mmp_new_seq(void);
1430 extern errcode_t ext2fs_read_bb_inode(ext2_filsys fs,
1431 ext2_badblocks_list *bb_list);
1433 /* read_bb_file.c */
1434 extern errcode_t ext2fs_read_bb_FILE2(ext2_filsys fs, FILE *f,
1435 ext2_badblocks_list *bb_list,
1437 void (*invalid)(ext2_filsys fs,
1441 extern errcode_t ext2fs_read_bb_FILE(ext2_filsys fs, FILE *f,
1442 ext2_badblocks_list *bb_list,
1443 void (*invalid)(ext2_filsys fs,
1447 extern errcode_t ext2fs_create_resize_inode(ext2_filsys fs);
1450 extern void ext2fs_swap_ext_attr(char *to, char *from, int bufsize,
1452 extern void ext2fs_swap_ext_attr_header(struct ext2_ext_attr_header *to_header,
1453 struct ext2_ext_attr_header *from_hdr);
1454 extern void ext2fs_swap_ext_attr_entry(struct ext2_ext_attr_entry *to_entry,
1455 struct ext2_ext_attr_entry *from_entry);
1456 extern void ext2fs_swap_super(struct ext2_super_block * super);
1457 extern void ext2fs_swap_group_desc(struct ext2_group_desc *gdp);
1458 extern void ext2fs_swap_group_desc2(ext2_filsys, struct ext2_group_desc *gdp);
1459 extern void ext2fs_swap_inode_full(ext2_filsys fs, struct ext2_inode_large *t,
1460 struct ext2_inode_large *f, int hostorder,
1462 extern void ext2fs_swap_inode(ext2_filsys fs,struct ext2_inode *t,
1463 struct ext2_inode *f, int hostorder);
1464 extern void ext2fs_swap_mmp(struct mmp_struct *mmp);
1467 extern int ext2fs_open_file(const char *pathname, int flags, mode_t mode);
1468 extern int ext2fs_stat(const char *path, ext2fs_struct_stat *buf);
1469 extern int ext2fs_fstat(int fd, ext2fs_struct_stat *buf);
1472 extern int ext2fs_inode_has_valid_blocks(struct ext2_inode *inode);
1473 extern int ext2fs_inode_has_valid_blocks2(ext2_filsys fs,
1474 struct ext2_inode *inode);
1477 extern int ext2fs_parse_version_string(const char *ver_string);
1478 extern int ext2fs_get_library_version(const char **ver_string,
1479 const char **date_string);
1481 /* write_bb_file.c */
1482 extern errcode_t ext2fs_write_bb_FILE(ext2_badblocks_list bb_list,
1487 /* inline functions */
1488 #ifdef NO_INLINE_FUNCS
1489 extern errcode_t ext2fs_get_mem(unsigned long size, void *ptr);
1490 extern errcode_t ext2fs_get_memzero(unsigned long size, void *ptr);
1491 extern errcode_t ext2fs_get_array(unsigned long count,
1492 unsigned long size, void *ptr);
1493 extern errcode_t ext2fs_get_arrayzero(unsigned long count,
1494 unsigned long size, void *ptr);
1495 extern errcode_t ext2fs_free_mem(void *ptr);
1496 extern errcode_t ext2fs_resize_mem(unsigned long old_size,
1497 unsigned long size, void *ptr);
1498 extern void ext2fs_mark_super_dirty(ext2_filsys fs);
1499 extern void ext2fs_mark_changed(ext2_filsys fs);
1500 extern int ext2fs_test_changed(ext2_filsys fs);
1501 extern void ext2fs_mark_valid(ext2_filsys fs);
1502 extern void ext2fs_unmark_valid(ext2_filsys fs);
1503 extern int ext2fs_test_valid(ext2_filsys fs);
1504 extern void ext2fs_mark_ib_dirty(ext2_filsys fs);
1505 extern void ext2fs_mark_bb_dirty(ext2_filsys fs);
1506 extern int ext2fs_test_ib_dirty(ext2_filsys fs);
1507 extern int ext2fs_test_bb_dirty(ext2_filsys fs);
1508 extern dgrp_t ext2fs_group_of_blk(ext2_filsys fs, blk_t blk);
1509 extern dgrp_t ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino);
1510 extern blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group);
1511 extern blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group);
1512 extern blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
1513 struct ext2_inode *inode);
1514 extern unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b);
1515 extern __u64 ext2fs_div64_ceil(__u64 a, __u64 b);
1519 * The actual inlined functions definitions themselves...
1521 * If NO_INLINE_FUNCS is defined, then we won't try to do inline
1524 #if (defined(INCLUDE_INLINE_FUNCS) || !defined(NO_INLINE_FUNCS))
1525 #ifdef INCLUDE_INLINE_FUNCS
1526 #define _INLINE_ extern
1528 #if (__STDC_VERSION__ >= 199901L)
1529 #define _INLINE_ inline
1532 #define _INLINE_ extern __inline__
1533 #else /* For Watcom C */
1534 #define _INLINE_ extern inline
1535 #endif /* __GNUC__ */
1536 #endif /* __STDC_VERSION__ >= 199901L */
1539 #ifndef EXT2_CUSTOM_MEMORY_ROUTINES
1542 * Allocate memory. The 'ptr' arg must point to a pointer.
1544 _INLINE_ errcode_t ext2fs_get_mem(unsigned long size, void *ptr)
1550 return EXT2_ET_NO_MEMORY;
1551 memcpy(ptr, &pp, sizeof (pp));
1555 _INLINE_ errcode_t ext2fs_get_memzero(unsigned long size, void *ptr)
1561 return EXT2_ET_NO_MEMORY;
1562 memset(pp, 0, size);
1563 memcpy(ptr, &pp, sizeof(pp));
1567 _INLINE_ errcode_t ext2fs_get_array(unsigned long count, unsigned long size, void *ptr)
1569 if (count && (-1UL)/count<size)
1570 return EXT2_ET_NO_MEMORY;
1571 return ext2fs_get_mem(count*size, ptr);
1574 _INLINE_ errcode_t ext2fs_get_arrayzero(unsigned long count,
1575 unsigned long size, void *ptr)
1579 if (count && (-1UL)/count<size)
1580 return EXT2_ET_NO_MEMORY;
1581 pp = calloc(count, size);
1583 return EXT2_ET_NO_MEMORY;
1584 memcpy(ptr, &pp, sizeof(pp));
1589 * Free memory. The 'ptr' arg must point to a pointer.
1591 _INLINE_ errcode_t ext2fs_free_mem(void *ptr)
1595 memcpy(&p, ptr, sizeof(p));
1598 memcpy(ptr, &p, sizeof(p));
1603 * Resize memory. The 'ptr' arg must point to a pointer.
1605 _INLINE_ errcode_t ext2fs_resize_mem(unsigned long EXT2FS_ATTR((unused)) old_size,
1606 unsigned long size, void *ptr)
1610 /* Use "memcpy" for pointer assignments here to avoid problems
1611 * with C99 strict type aliasing rules. */
1612 memcpy(&p, ptr, sizeof(p));
1613 p = realloc(p, size);
1615 return EXT2_ET_NO_MEMORY;
1616 memcpy(ptr, &p, sizeof(p));
1619 #endif /* Custom memory routines */
1622 * Mark a filesystem superblock as dirty
1624 _INLINE_ void ext2fs_mark_super_dirty(ext2_filsys fs)
1626 fs->flags |= EXT2_FLAG_DIRTY | EXT2_FLAG_CHANGED;
1630 * Mark a filesystem as changed
1632 _INLINE_ void ext2fs_mark_changed(ext2_filsys fs)
1634 fs->flags |= EXT2_FLAG_CHANGED;
1638 * Check to see if a filesystem has changed
1640 _INLINE_ int ext2fs_test_changed(ext2_filsys fs)
1642 return (fs->flags & EXT2_FLAG_CHANGED);
1646 * Mark a filesystem as valid
1648 _INLINE_ void ext2fs_mark_valid(ext2_filsys fs)
1650 fs->flags |= EXT2_FLAG_VALID;
1654 * Mark a filesystem as NOT valid
1656 _INLINE_ void ext2fs_unmark_valid(ext2_filsys fs)
1658 fs->flags &= ~EXT2_FLAG_VALID;
1662 * Check to see if a filesystem is valid
1664 _INLINE_ int ext2fs_test_valid(ext2_filsys fs)
1666 return (fs->flags & EXT2_FLAG_VALID);
1670 * Mark the inode bitmap as dirty
1672 _INLINE_ void ext2fs_mark_ib_dirty(ext2_filsys fs)
1674 fs->flags |= EXT2_FLAG_IB_DIRTY | EXT2_FLAG_CHANGED;
1678 * Mark the block bitmap as dirty
1680 _INLINE_ void ext2fs_mark_bb_dirty(ext2_filsys fs)
1682 fs->flags |= EXT2_FLAG_BB_DIRTY | EXT2_FLAG_CHANGED;
1686 * Check to see if a filesystem's inode bitmap is dirty
1688 _INLINE_ int ext2fs_test_ib_dirty(ext2_filsys fs)
1690 return (fs->flags & EXT2_FLAG_IB_DIRTY);
1694 * Check to see if a filesystem's block bitmap is dirty
1696 _INLINE_ int ext2fs_test_bb_dirty(ext2_filsys fs)
1698 return (fs->flags & EXT2_FLAG_BB_DIRTY);
1702 * Return the group # of a block
1704 _INLINE_ dgrp_t ext2fs_group_of_blk(ext2_filsys fs, blk_t blk)
1706 return ext2fs_group_of_blk2(fs, blk);
1709 * Return the group # of an inode number
1711 _INLINE_ dgrp_t ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino)
1713 return (ino - 1) / fs->super->s_inodes_per_group;
1717 * Return the first block (inclusive) in a group
1719 _INLINE_ blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group)
1721 return (blk_t) ext2fs_group_first_block2(fs, group);
1725 * Return the last block (inclusive) in a group
1727 _INLINE_ blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group)
1729 return (blk_t) ext2fs_group_last_block2(fs, group);
1732 _INLINE_ blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
1733 struct ext2_inode *inode)
1735 return (blk_t) ext2fs_inode_data_blocks2(fs, inode);
1739 * This is an efficient, overflow safe way of calculating ceil((1.0 * a) / b)
1741 _INLINE_ unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b)
1745 return ((a - 1) / b) + 1;
1748 _INLINE_ __u64 ext2fs_div64_ceil(__u64 a, __u64 b)
1752 return ((a - 1) / b) + 1;
1762 #endif /* _EXT2FS_EXT2FS_H */