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 typedef __u32 __bitwise ext2_ino_t;
70 typedef __u32 __bitwise blk_t;
71 typedef __u64 __bitwise blk64_t;
72 typedef __u32 __bitwise dgrp_t;
73 typedef __u32 __bitwise ext2_off_t;
74 typedef __u64 __bitwise ext2_off64_t;
75 typedef __s64 __bitwise e2_blkcnt_t;
76 typedef __u32 __bitwise ext2_dirhash_t;
78 #if EXT2_FLAT_INCLUDES
82 #include "ext2_ext_attr.h"
84 #include <et/com_err.h>
85 #include <ext2fs/ext2_io.h>
86 #include <ext2fs/ext2_err.h>
87 #include <ext2fs/ext2_ext_attr.h>
91 * Portability help for Microsoft Visual C++
94 #define EXT2_QSORT_TYPE int __cdecl
96 #define EXT2_QSORT_TYPE int
99 typedef struct struct_ext2_filsys *ext2_filsys;
101 #define EXT2FS_MARK_ERROR 0
102 #define EXT2FS_UNMARK_ERROR 1
103 #define EXT2FS_TEST_ERROR 2
105 typedef struct ext2fs_struct_generic_bitmap *ext2fs_generic_bitmap;
106 typedef struct ext2fs_struct_generic_bitmap *ext2fs_inode_bitmap;
107 typedef struct ext2fs_struct_generic_bitmap *ext2fs_block_bitmap;
109 #define EXT2_FIRST_INODE(s) EXT2_FIRST_INO(s)
113 * Badblocks list definitions
116 typedef struct ext2_struct_u32_list *ext2_badblocks_list;
117 typedef struct ext2_struct_u32_iterate *ext2_badblocks_iterate;
119 typedef struct ext2_struct_u32_list *ext2_u32_list;
120 typedef struct ext2_struct_u32_iterate *ext2_u32_iterate;
123 typedef struct ext2_struct_u32_list *badblocks_list;
124 typedef struct ext2_struct_u32_iterate *badblocks_iterate;
126 #define BADBLOCKS_FLAG_DIRTY 1
129 * ext2_dblist structure and abstractions (see dblist.c)
131 struct ext2_db_entry2 {
134 e2_blkcnt_t blockcnt;
137 /* Ye Olde 32-bit version */
138 struct ext2_db_entry {
144 typedef struct ext2_struct_dblist *ext2_dblist;
146 #define DBLIST_ABORT 1
149 * ext2_fileio definitions
152 #define EXT2_FILE_WRITE 0x0001
153 #define EXT2_FILE_CREATE 0x0002
155 #define EXT2_FILE_MASK 0x00FF
157 #define EXT2_FILE_BUF_DIRTY 0x4000
158 #define EXT2_FILE_BUF_VALID 0x2000
160 typedef struct ext2_file *ext2_file_t;
162 #define EXT2_SEEK_SET 0
163 #define EXT2_SEEK_CUR 1
164 #define EXT2_SEEK_END 2
167 * Flags for the ext2_filsys structure and for ext2fs_open()
169 #define EXT2_FLAG_RW 0x01
170 #define EXT2_FLAG_CHANGED 0x02
171 #define EXT2_FLAG_DIRTY 0x04
172 #define EXT2_FLAG_VALID 0x08
173 #define EXT2_FLAG_IB_DIRTY 0x10
174 #define EXT2_FLAG_BB_DIRTY 0x20
175 #define EXT2_FLAG_SWAP_BYTES 0x40
176 #define EXT2_FLAG_SWAP_BYTES_READ 0x80
177 #define EXT2_FLAG_SWAP_BYTES_WRITE 0x100
178 #define EXT2_FLAG_MASTER_SB_ONLY 0x200
179 #define EXT2_FLAG_FORCE 0x400
180 #define EXT2_FLAG_SUPER_ONLY 0x800
181 #define EXT2_FLAG_JOURNAL_DEV_OK 0x1000
182 #define EXT2_FLAG_IMAGE_FILE 0x2000
183 #define EXT2_FLAG_EXCLUSIVE 0x4000
184 #define EXT2_FLAG_SOFTSUPP_FEATURES 0x8000
185 #define EXT2_FLAG_NOFREE_ON_ERROR 0x10000
186 #define EXT2_FLAG_64BITS 0x20000
187 #define EXT2_FLAG_PRINT_PROGRESS 0x40000
188 #define EXT2_FLAG_DIRECT_IO 0x80000
189 #define EXT2_FLAG_SKIP_MMP 0x100000
190 #define EXT2_FLAG_IGNORE_CSUM_ERRORS 0x200000
193 * Special flag in the ext2 inode i_flag field that means that this is
194 * a new inode. (So that ext2_write_inode() can clear extra fields.)
196 #define EXT2_NEW_INODE_FL 0x80000000
199 * Flags for mkjournal
201 #define EXT2_MKJOURNAL_V1_SUPER 0x0000001 /* create V1 superblock (deprecated) */
202 #define EXT2_MKJOURNAL_LAZYINIT 0x0000002 /* don't zero journal inode before use*/
203 #define EXT2_MKJOURNAL_NO_MNT_CHECK 0x0000004 /* don't check mount status */
205 struct opaque_ext2_group_desc;
207 struct struct_ext2_filsys {
212 struct ext2_super_block * super;
213 unsigned int blocksize;
215 dgrp_t group_desc_count;
216 unsigned long desc_blocks;
217 struct opaque_ext2_group_desc * group_desc;
218 unsigned int inode_blocks_per_group;
219 ext2fs_inode_bitmap inode_map;
220 ext2fs_block_bitmap block_map;
221 /* XXX FIXME-64: not 64-bit safe, but not used? */
222 errcode_t (*get_blocks)(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
223 errcode_t (*check_directory)(ext2_filsys fs, ext2_ino_t ino);
224 errcode_t (*write_bitmaps)(ext2_filsys fs);
225 errcode_t (*read_inode)(ext2_filsys fs, ext2_ino_t ino,
226 struct ext2_inode *inode);
227 errcode_t (*write_inode)(ext2_filsys fs, ext2_ino_t ino,
228 struct ext2_inode *inode);
229 ext2_badblocks_list badblocks;
231 __u32 stride; /* for mke2fs */
232 struct ext2_super_block * orig_super;
233 struct ext2_image_hdr * image_header;
236 int cluster_ratio_bits;
237 __u16 default_bitmap_type;
240 * Reserved for future expansion
245 * Reserved for the use of the calling application.
252 struct ext2_inode_cache *icache;
256 * More callback functions
258 errcode_t (*get_alloc_block)(ext2_filsys fs, blk64_t goal,
260 void (*block_alloc_stats)(ext2_filsys fs, blk64_t blk, int inuse);
263 * Buffers for Multiple mount protection(MMP) block.
270 * Time at which e2fsck last updated the MMP block.
272 long mmp_last_written;
274 /* progress operation functions */
275 struct ext2fs_progress_ops *progress_ops;
277 /* Precomputed FS UUID checksum for seeding other checksums */
280 io_channel journal_io;
283 /* New block range allocation hooks */
284 errcode_t (*new_range)(ext2_filsys fs, int flags, blk64_t goal,
285 blk64_t len, blk64_t *pblk, blk64_t *plen);
286 void (*block_alloc_stats_range)(ext2_filsys fs, blk64_t blk, blk_t num,
290 #if EXT2_FLAT_INCLUDES
291 #include "e2_bitops.h"
293 #include <ext2fs/bitops.h>
297 * 64-bit bitmap backend types
299 #define EXT2FS_BMAP64_BITARRAY 1
300 #define EXT2FS_BMAP64_RBTREE 2
301 #define EXT2FS_BMAP64_AUTODIR 3
304 * Return flags for the block iterator functions
306 #define BLOCK_CHANGED 1
307 #define BLOCK_ABORT 2
308 #define BLOCK_ERROR 4
309 #define BLOCK_INLINE_DATA_CHANGED 8
312 * Block interate flags
314 * BLOCK_FLAG_APPEND, or BLOCK_FLAG_HOLE, indicates that the interator
315 * function should be called on blocks where the block number is zero.
316 * This is used by ext2fs_expand_dir() to be able to add a new block
317 * to an inode. It can also be used for programs that want to be able
318 * to deal with files that contain "holes".
320 * BLOCK_FLAG_DEPTH_TRAVERSE indicates that the iterator function for
321 * the indirect, doubly indirect, etc. blocks should be called after
322 * all of the blocks containined in the indirect blocks are processed.
323 * This is useful if you are going to be deallocating blocks from an
326 * BLOCK_FLAG_DATA_ONLY indicates that the iterator function should be
327 * called for data blocks only.
329 * BLOCK_FLAG_READ_ONLY is a promise by the caller that it will not
330 * modify returned block number.
332 * BLOCK_FLAG_NO_LARGE is for internal use only. It informs
333 * ext2fs_block_iterate2 that large files won't be accepted.
335 #define BLOCK_FLAG_APPEND 1
336 #define BLOCK_FLAG_HOLE 1
337 #define BLOCK_FLAG_DEPTH_TRAVERSE 2
338 #define BLOCK_FLAG_DATA_ONLY 4
339 #define BLOCK_FLAG_READ_ONLY 8
341 #define BLOCK_FLAG_NO_LARGE 0x1000
344 * Magic "block count" return values for the block iterator function.
346 #define BLOCK_COUNT_IND (-1)
347 #define BLOCK_COUNT_DIND (-2)
348 #define BLOCK_COUNT_TIND (-3)
349 #define BLOCK_COUNT_TRANSLATOR (-4)
353 * Flags for ext2fs_move_blocks
355 #define EXT2_BMOVE_GET_DBLIST 0x0001
356 #define EXT2_BMOVE_DEBUG 0x0002
360 * Generic (non-filesystem layout specific) extents structure
363 #define EXT2_EXTENT_FLAGS_LEAF 0x0001
364 #define EXT2_EXTENT_FLAGS_UNINIT 0x0002
365 #define EXT2_EXTENT_FLAGS_SECOND_VISIT 0x0004
367 struct ext2fs_extent {
368 blk64_t e_pblk; /* first physical block */
369 blk64_t e_lblk; /* first logical block extent covers */
370 __u32 e_len; /* number of blocks covered by extent */
371 __u32 e_flags; /* extent flags */
374 typedef struct ext2_extent_handle *ext2_extent_handle_t;
375 typedef struct ext2_extent_path *ext2_extent_path_t;
378 * Flags used by ext2fs_extent_get()
380 #define EXT2_EXTENT_CURRENT 0x0000
381 #define EXT2_EXTENT_MOVE_MASK 0x000F
382 #define EXT2_EXTENT_ROOT 0x0001
383 #define EXT2_EXTENT_LAST_LEAF 0x0002
384 #define EXT2_EXTENT_FIRST_SIB 0x0003
385 #define EXT2_EXTENT_LAST_SIB 0x0004
386 #define EXT2_EXTENT_NEXT_SIB 0x0005
387 #define EXT2_EXTENT_PREV_SIB 0x0006
388 #define EXT2_EXTENT_NEXT_LEAF 0x0007
389 #define EXT2_EXTENT_PREV_LEAF 0x0008
390 #define EXT2_EXTENT_NEXT 0x0009
391 #define EXT2_EXTENT_PREV 0x000A
392 #define EXT2_EXTENT_UP 0x000B
393 #define EXT2_EXTENT_DOWN 0x000C
394 #define EXT2_EXTENT_DOWN_AND_LAST 0x000D
397 * Flags used by ext2fs_extent_insert()
399 #define EXT2_EXTENT_INSERT_AFTER 0x0001 /* insert after handle loc'n */
400 #define EXT2_EXTENT_INSERT_NOSPLIT 0x0002 /* insert may not cause split */
403 * Flags used by ext2fs_extent_delete()
405 #define EXT2_EXTENT_DELETE_KEEP_EMPTY 0x001 /* keep node if last extnt gone */
408 * Flags used by ext2fs_extent_set_bmap()
410 #define EXT2_EXTENT_SET_BMAP_UNINIT 0x0001
413 * Data structure returned by ext2fs_extent_get_info()
415 struct ext2_extent_info {
425 __u32 max_uninit_len;
429 * Flags for directory block reading and writing functions
431 #define EXT2_DIRBLOCK_V2_STRUCT 0x0001
434 * Return flags for the directory iterator functions
436 #define DIRENT_CHANGED 1
437 #define DIRENT_ABORT 2
438 #define DIRENT_ERROR 3
441 * Directory iterator flags
444 #define DIRENT_FLAG_INCLUDE_EMPTY 1
445 #define DIRENT_FLAG_INCLUDE_REMOVED 2
446 #define DIRENT_FLAG_INCLUDE_CSUM 4
447 #define DIRENT_FLAG_INCLUDE_INLINE_DATA 8
449 #define DIRENT_DOT_FILE 1
450 #define DIRENT_DOT_DOT_FILE 2
451 #define DIRENT_OTHER_FILE 3
452 #define DIRENT_DELETED_FILE 4
453 #define DIRENT_CHECKSUM 5
456 * Inode scan definitions
458 typedef struct ext2_struct_inode_scan *ext2_inode_scan;
463 #define EXT2_SF_CHK_BADBLOCKS 0x0001
464 #define EXT2_SF_BAD_INODE_BLK 0x0002
465 #define EXT2_SF_BAD_EXTRA_BYTES 0x0004
466 #define EXT2_SF_SKIP_MISSING_ITABLE 0x0008
467 #define EXT2_SF_DO_LAZY 0x0010
468 #define EXT2_SF_WARN_GARBAGE_INODES 0x0020
471 * ext2fs_check_if_mounted flags
473 #define EXT2_MF_MOUNTED 1
474 #define EXT2_MF_ISROOT 2
475 #define EXT2_MF_READONLY 4
476 #define EXT2_MF_SWAP 8
477 #define EXT2_MF_BUSY 16
480 * Ext2/linux mode flags. We define them here so that we don't need
481 * to depend on the OS's sys/stat.h, since we may be compiling on a
484 #define LINUX_S_IFMT 00170000
485 #define LINUX_S_IFSOCK 0140000
486 #define LINUX_S_IFLNK 0120000
487 #define LINUX_S_IFREG 0100000
488 #define LINUX_S_IFBLK 0060000
489 #define LINUX_S_IFDIR 0040000
490 #define LINUX_S_IFCHR 0020000
491 #define LINUX_S_IFIFO 0010000
492 #define LINUX_S_ISUID 0004000
493 #define LINUX_S_ISGID 0002000
494 #define LINUX_S_ISVTX 0001000
496 #define LINUX_S_IRWXU 00700
497 #define LINUX_S_IRUSR 00400
498 #define LINUX_S_IWUSR 00200
499 #define LINUX_S_IXUSR 00100
501 #define LINUX_S_IRWXG 00070
502 #define LINUX_S_IRGRP 00040
503 #define LINUX_S_IWGRP 00020
504 #define LINUX_S_IXGRP 00010
506 #define LINUX_S_IRWXO 00007
507 #define LINUX_S_IROTH 00004
508 #define LINUX_S_IWOTH 00002
509 #define LINUX_S_IXOTH 00001
511 #define LINUX_S_ISLNK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFLNK)
512 #define LINUX_S_ISREG(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFREG)
513 #define LINUX_S_ISDIR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFDIR)
514 #define LINUX_S_ISCHR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFCHR)
515 #define LINUX_S_ISBLK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFBLK)
516 #define LINUX_S_ISFIFO(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFIFO)
517 #define LINUX_S_ISSOCK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFSOCK)
520 * ext2 size of an inode
522 #define EXT2_I_SIZE(i) ((i)->i_size | ((__u64) (i)->i_size_high << 32))
525 * ext2_icount_t abstraction
527 #define EXT2_ICOUNT_OPT_INCREMENT 0x01
529 typedef struct ext2_icount *ext2_icount_t;
532 * Flags for ext2fs_bmap
534 #define BMAP_ALLOC 0x0001
535 #define BMAP_SET 0x0002
536 #define BMAP_UNINIT 0x0004
537 #define BMAP_ZERO 0x0008
540 * Returned flags from ext2fs_bmap
542 #define BMAP_RET_UNINIT 0x0001
545 * Flags for imager.c functions
547 #define IMAGER_FLAG_INODEMAP 1
548 #define IMAGER_FLAG_SPARSEWRITE 2
551 * For checking structure magic numbers...
554 #define EXT2_CHECK_MAGIC(struct, code) \
555 if ((struct)->magic != (code)) return (code)
558 * Features supported by this version of the library
560 #define EXT2_LIB_FEATURE_COMPAT_SUPP (EXT2_FEATURE_COMPAT_DIR_PREALLOC|\
561 EXT2_FEATURE_COMPAT_IMAGIC_INODES|\
562 EXT3_FEATURE_COMPAT_HAS_JOURNAL|\
563 EXT2_FEATURE_COMPAT_RESIZE_INODE|\
564 EXT2_FEATURE_COMPAT_DIR_INDEX|\
565 EXT2_FEATURE_COMPAT_EXT_ATTR|\
566 EXT4_FEATURE_COMPAT_SPARSE_SUPER2)
569 #define EXT4_LIB_INCOMPAT_MMP EXT4_FEATURE_INCOMPAT_MMP
571 #define EXT4_LIB_INCOMPAT_MMP (0)
574 #define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\
575 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\
576 EXT2_FEATURE_INCOMPAT_META_BG|\
577 EXT3_FEATURE_INCOMPAT_RECOVER|\
578 EXT3_FEATURE_INCOMPAT_EXTENTS|\
579 EXT4_FEATURE_INCOMPAT_FLEX_BG|\
580 EXT4_LIB_INCOMPAT_MMP|\
581 EXT4_FEATURE_INCOMPAT_64BIT|\
582 EXT4_FEATURE_INCOMPAT_INLINE_DATA|\
583 EXT4_FEATURE_INCOMPAT_ENCRYPT)
585 #define EXT2_LIB_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|\
586 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|\
587 EXT2_FEATURE_RO_COMPAT_LARGE_FILE|\
588 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|\
589 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|\
590 EXT4_FEATURE_RO_COMPAT_GDT_CSUM|\
591 EXT4_FEATURE_RO_COMPAT_BIGALLOC|\
592 EXT4_FEATURE_RO_COMPAT_QUOTA|\
593 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM|\
594 EXT4_FEATURE_RO_COMPAT_READONLY)
597 * These features are only allowed if EXT2_FLAG_SOFTSUPP_FEATURES is passed
600 #define EXT2_LIB_SOFTSUPP_INCOMPAT (0)
601 #define EXT2_LIB_SOFTSUPP_RO_COMPAT (EXT4_FEATURE_RO_COMPAT_REPLICA)
604 /* Translate a block number to a cluster number */
605 #define EXT2FS_CLUSTER_RATIO(fs) (1 << (fs)->cluster_ratio_bits)
606 #define EXT2FS_CLUSTER_MASK(fs) (EXT2FS_CLUSTER_RATIO(fs) - 1)
607 #define EXT2FS_B2C(fs, blk) ((blk) >> (fs)->cluster_ratio_bits)
608 /* Translate a cluster number to a block number */
609 #define EXT2FS_C2B(fs, cluster) ((cluster) << (fs)->cluster_ratio_bits)
610 /* Translate # of blks to # of clusters */
611 #define EXT2FS_NUM_B2C(fs, blks) (((blks) + EXT2FS_CLUSTER_MASK(fs)) >> \
612 (fs)->cluster_ratio_bits)
614 #if defined(HAVE_FSTAT64) && !defined(__OSX_AVAILABLE_BUT_DEPRECATED)
615 typedef struct stat64 ext2fs_struct_stat;
617 typedef struct stat ext2fs_struct_stat;
621 * For ext2fs_close2() and ext2fs_flush2(), this flag allows you to
622 * avoid the fsync call.
624 #define EXT2_FLAG_FLUSH_NO_SYNC 1
627 * Modify and iterate extended attributes
629 struct ext2_xattr_handle;
630 #define XATTR_ABORT 1
631 #define XATTR_CHANGED 2
634 * function prototypes
636 static inline int ext2fs_has_group_desc_csum(ext2_filsys fs)
638 return ext2fs_has_feature_metadata_csum(fs->super) ||
639 ext2fs_has_feature_gdt_csum(fs->super);
642 /* The LARGE_FILE feature should be set if we have stored files 2GB+ in size */
643 static inline int ext2fs_needs_large_file_feature(unsigned long long file_size)
645 return file_size >= 0x80000000ULL;
649 extern errcode_t ext2fs_new_inode(ext2_filsys fs, ext2_ino_t dir, int mode,
650 ext2fs_inode_bitmap map, ext2_ino_t *ret);
651 extern errcode_t ext2fs_new_block(ext2_filsys fs, blk_t goal,
652 ext2fs_block_bitmap map, blk_t *ret);
653 extern errcode_t ext2fs_new_block2(ext2_filsys fs, blk64_t goal,
654 ext2fs_block_bitmap map, blk64_t *ret);
655 extern errcode_t ext2fs_get_free_blocks(ext2_filsys fs, blk_t start,
656 blk_t finish, int num,
657 ext2fs_block_bitmap map,
659 extern errcode_t ext2fs_get_free_blocks2(ext2_filsys fs, blk64_t start,
660 blk64_t finish, int num,
661 ext2fs_block_bitmap map,
663 extern errcode_t ext2fs_alloc_block(ext2_filsys fs, blk_t goal,
664 char *block_buf, blk_t *ret);
665 extern errcode_t ext2fs_alloc_block2(ext2_filsys fs, blk64_t goal,
666 char *block_buf, blk64_t *ret);
667 extern void ext2fs_set_alloc_block_callback(ext2_filsys fs,
668 errcode_t (*func)(ext2_filsys fs,
671 errcode_t (**old)(ext2_filsys fs,
674 blk64_t ext2fs_find_inode_goal(ext2_filsys fs, ext2_ino_t ino,
675 struct ext2_inode *inode, blk64_t lblk);
676 extern void ext2fs_set_new_range_callback(ext2_filsys fs,
677 errcode_t (*func)(ext2_filsys fs, int flags, blk64_t goal,
678 blk64_t len, blk64_t *pblk, blk64_t *plen),
679 errcode_t (**old)(ext2_filsys fs, int flags, blk64_t goal,
680 blk64_t len, blk64_t *pblk, blk64_t *plen));
681 extern void ext2fs_set_block_alloc_stats_range_callback(ext2_filsys fs,
682 void (*func)(ext2_filsys fs, blk64_t blk,
683 blk_t num, int inuse),
684 void (**old)(ext2_filsys fs, blk64_t blk,
685 blk_t num, int inuse));
686 #define EXT2_NEWRANGE_FIXED_GOAL (0x1)
687 #define EXT2_NEWRANGE_MIN_LENGTH (0x2)
688 #define EXT2_NEWRANGE_ALL_FLAGS (0x3)
689 errcode_t ext2fs_new_range(ext2_filsys fs, int flags, blk64_t goal,
690 blk64_t len, ext2fs_block_bitmap map, blk64_t *pblk,
692 #define EXT2_ALLOCRANGE_FIXED_GOAL (0x1)
693 #define EXT2_ALLOCRANGE_ZERO_BLOCKS (0x2)
694 #define EXT2_ALLOCRANGE_ALL_FLAGS (0x3)
695 errcode_t ext2fs_alloc_range(ext2_filsys fs, int flags, blk64_t goal,
696 blk_t len, blk64_t *ret);
699 extern int ext2fs_reserve_super_and_bgd(ext2_filsys fs,
701 ext2fs_block_bitmap bmap);
702 extern void ext2fs_set_block_alloc_stats_callback(ext2_filsys fs,
703 void (*func)(ext2_filsys fs,
706 void (**old)(ext2_filsys fs,
711 void ext2fs_inode_alloc_stats(ext2_filsys fs, ext2_ino_t ino, int inuse);
712 void ext2fs_inode_alloc_stats2(ext2_filsys fs, ext2_ino_t ino,
713 int inuse, int isdir);
714 void ext2fs_block_alloc_stats(ext2_filsys fs, blk_t blk, int inuse);
715 void ext2fs_block_alloc_stats2(ext2_filsys fs, blk64_t blk, int inuse);
716 void ext2fs_block_alloc_stats_range(ext2_filsys fs, blk64_t blk,
717 blk_t num, int inuse);
720 extern errcode_t ext2fs_allocate_tables(ext2_filsys fs);
721 extern errcode_t ext2fs_allocate_group_table(ext2_filsys fs, dgrp_t group,
722 ext2fs_block_bitmap bmap);
725 extern errcode_t ext2fs_u32_list_create(ext2_u32_list *ret, int size);
726 extern errcode_t ext2fs_u32_list_add(ext2_u32_list bb, __u32 blk);
727 extern int ext2fs_u32_list_find(ext2_u32_list bb, __u32 blk);
728 extern int ext2fs_u32_list_test(ext2_u32_list bb, blk_t blk);
729 extern errcode_t ext2fs_u32_list_iterate_begin(ext2_u32_list bb,
730 ext2_u32_iterate *ret);
731 extern int ext2fs_u32_list_iterate(ext2_u32_iterate iter, blk_t *blk);
732 extern void ext2fs_u32_list_iterate_end(ext2_u32_iterate iter);
733 extern errcode_t ext2fs_u32_copy(ext2_u32_list src, ext2_u32_list *dest);
734 extern int ext2fs_u32_list_equal(ext2_u32_list bb1, ext2_u32_list bb2);
736 extern errcode_t ext2fs_badblocks_list_create(ext2_badblocks_list *ret,
738 extern errcode_t ext2fs_badblocks_list_add(ext2_badblocks_list bb,
740 extern int ext2fs_badblocks_list_test(ext2_badblocks_list bb,
742 extern int ext2fs_u32_list_del(ext2_u32_list bb, __u32 blk);
743 extern void ext2fs_badblocks_list_del(ext2_u32_list bb, __u32 blk);
745 ext2fs_badblocks_list_iterate_begin(ext2_badblocks_list bb,
746 ext2_badblocks_iterate *ret);
747 extern int ext2fs_badblocks_list_iterate(ext2_badblocks_iterate iter,
749 extern void ext2fs_badblocks_list_iterate_end(ext2_badblocks_iterate iter);
750 extern errcode_t ext2fs_badblocks_copy(ext2_badblocks_list src,
751 ext2_badblocks_list *dest);
752 extern int ext2fs_badblocks_equal(ext2_badblocks_list bb1,
753 ext2_badblocks_list bb2);
754 extern int ext2fs_u32_list_count(ext2_u32_list bb);
757 extern errcode_t badblocks_list_create(badblocks_list *ret, int size);
758 extern errcode_t badblocks_list_add(badblocks_list bb, blk_t blk);
759 extern int badblocks_list_test(badblocks_list bb, blk_t blk);
760 extern errcode_t badblocks_list_iterate_begin(badblocks_list bb,
761 badblocks_iterate *ret);
762 extern int badblocks_list_iterate(badblocks_iterate iter, blk_t *blk);
763 extern void badblocks_list_iterate_end(badblocks_iterate iter);
764 extern void badblocks_list_free(badblocks_list bb);
767 extern errcode_t ext2fs_update_bb_inode(ext2_filsys fs,
768 ext2_badblocks_list bb_list);
771 extern void ext2fs_free_block_bitmap(ext2fs_block_bitmap bitmap);
772 extern void ext2fs_free_inode_bitmap(ext2fs_inode_bitmap bitmap);
773 extern errcode_t ext2fs_copy_bitmap(ext2fs_generic_bitmap src,
774 ext2fs_generic_bitmap *dest);
775 extern errcode_t ext2fs_write_inode_bitmap(ext2_filsys fs);
776 extern errcode_t ext2fs_write_block_bitmap (ext2_filsys fs);
777 extern errcode_t ext2fs_read_inode_bitmap (ext2_filsys fs);
778 extern errcode_t ext2fs_read_block_bitmap(ext2_filsys fs);
779 extern errcode_t ext2fs_allocate_block_bitmap(ext2_filsys fs,
781 ext2fs_block_bitmap *ret);
782 extern errcode_t ext2fs_allocate_subcluster_bitmap(ext2_filsys fs,
784 ext2fs_block_bitmap *ret);
785 extern int ext2fs_get_bitmap_granularity(ext2fs_block_bitmap bitmap);
786 extern errcode_t ext2fs_allocate_inode_bitmap(ext2_filsys fs,
788 ext2fs_inode_bitmap *ret);
789 extern errcode_t ext2fs_fudge_inode_bitmap_end(ext2fs_inode_bitmap bitmap,
790 ext2_ino_t end, ext2_ino_t *oend);
791 extern errcode_t ext2fs_fudge_block_bitmap_end(ext2fs_block_bitmap bitmap,
792 blk_t end, blk_t *oend);
793 extern errcode_t ext2fs_fudge_block_bitmap_end2(ext2fs_block_bitmap bitmap,
794 blk64_t end, blk64_t *oend);
795 extern void ext2fs_clear_inode_bitmap(ext2fs_inode_bitmap bitmap);
796 extern void ext2fs_clear_block_bitmap(ext2fs_block_bitmap bitmap);
797 extern errcode_t ext2fs_read_bitmaps(ext2_filsys fs);
798 extern errcode_t ext2fs_write_bitmaps(ext2_filsys fs);
799 extern errcode_t ext2fs_resize_inode_bitmap(__u32 new_end, __u32 new_real_end,
800 ext2fs_inode_bitmap bmap);
801 extern errcode_t ext2fs_resize_inode_bitmap2(__u64 new_end,
803 ext2fs_inode_bitmap bmap);
804 extern errcode_t ext2fs_resize_block_bitmap(__u32 new_end, __u32 new_real_end,
805 ext2fs_block_bitmap bmap);
806 extern errcode_t ext2fs_resize_block_bitmap2(__u64 new_end,
808 ext2fs_block_bitmap bmap);
809 extern errcode_t ext2fs_compare_block_bitmap(ext2fs_block_bitmap bm1,
810 ext2fs_block_bitmap bm2);
811 extern errcode_t ext2fs_compare_inode_bitmap(ext2fs_inode_bitmap bm1,
812 ext2fs_inode_bitmap bm2);
813 extern errcode_t ext2fs_set_inode_bitmap_range(ext2fs_inode_bitmap bmap,
814 ext2_ino_t start, unsigned int num,
816 extern errcode_t ext2fs_set_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
817 __u64 start, size_t num,
819 extern errcode_t ext2fs_get_inode_bitmap_range(ext2fs_inode_bitmap bmap,
820 ext2_ino_t start, unsigned int num,
822 extern errcode_t ext2fs_get_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
823 __u64 start, size_t num,
825 extern errcode_t ext2fs_set_block_bitmap_range(ext2fs_block_bitmap bmap,
826 blk_t start, unsigned int num,
828 extern errcode_t ext2fs_set_block_bitmap_range2(ext2fs_block_bitmap bmap,
829 blk64_t start, size_t num,
831 extern errcode_t ext2fs_get_block_bitmap_range(ext2fs_block_bitmap bmap,
832 blk_t start, unsigned int num,
834 extern errcode_t ext2fs_get_block_bitmap_range2(ext2fs_block_bitmap bmap,
835 blk64_t start, size_t num,
839 extern __u32 ext2fs_inode_bitmap_checksum(ext2_filsys fs, dgrp_t group);
840 extern __u32 ext2fs_block_bitmap_checksum(ext2_filsys fs, dgrp_t group);
841 extern dgrp_t ext2fs_group_of_blk2(ext2_filsys fs, blk64_t);
842 extern blk64_t ext2fs_group_first_block2(ext2_filsys fs, dgrp_t group);
843 extern blk64_t ext2fs_group_last_block2(ext2_filsys fs, dgrp_t group);
844 extern int ext2fs_group_blocks_count(ext2_filsys fs, dgrp_t group);
845 extern blk64_t ext2fs_inode_data_blocks2(ext2_filsys fs,
846 struct ext2_inode *inode);
847 extern blk64_t ext2fs_inode_i_blocks(ext2_filsys fs,
848 struct ext2_inode *inode);
849 extern blk64_t ext2fs_blocks_count(struct ext2_super_block *super);
850 extern void ext2fs_blocks_count_set(struct ext2_super_block *super,
852 extern void ext2fs_blocks_count_add(struct ext2_super_block *super,
854 extern blk64_t ext2fs_r_blocks_count(struct ext2_super_block *super);
855 extern void ext2fs_r_blocks_count_set(struct ext2_super_block *super,
857 extern void ext2fs_r_blocks_count_add(struct ext2_super_block *super,
859 extern blk64_t ext2fs_free_blocks_count(struct ext2_super_block *super);
860 extern void ext2fs_free_blocks_count_set(struct ext2_super_block *super,
862 extern void ext2fs_free_blocks_count_add(struct ext2_super_block *super,
864 /* Block group descriptor accessor functions */
865 extern struct ext2_group_desc *ext2fs_group_desc(ext2_filsys fs,
866 struct opaque_ext2_group_desc *gdp,
868 extern blk64_t ext2fs_block_bitmap_csum(ext2_filsys fs, dgrp_t group);
869 extern blk64_t ext2fs_block_bitmap_loc(ext2_filsys fs, dgrp_t group);
870 extern void ext2fs_block_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
872 extern __u32 ext2fs_inode_bitmap_csum(ext2_filsys fs, dgrp_t group);
873 extern blk64_t ext2fs_inode_bitmap_loc(ext2_filsys fs, dgrp_t group);
874 extern void ext2fs_inode_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
876 extern blk64_t ext2fs_inode_table_loc(ext2_filsys fs, dgrp_t group);
877 extern void ext2fs_inode_table_loc_set(ext2_filsys fs, dgrp_t group,
879 extern __u32 ext2fs_bg_free_blocks_count(ext2_filsys fs, dgrp_t group);
880 extern void ext2fs_bg_free_blocks_count_set(ext2_filsys fs, dgrp_t group,
882 extern __u32 ext2fs_bg_free_inodes_count(ext2_filsys fs, dgrp_t group);
883 extern void ext2fs_bg_free_inodes_count_set(ext2_filsys fs, dgrp_t group,
885 extern __u32 ext2fs_bg_used_dirs_count(ext2_filsys fs, dgrp_t group);
886 extern void ext2fs_bg_used_dirs_count_set(ext2_filsys fs, dgrp_t group,
888 extern __u32 ext2fs_bg_itable_unused(ext2_filsys fs, dgrp_t group);
889 extern void ext2fs_bg_itable_unused_set(ext2_filsys fs, dgrp_t group,
891 extern __u16 ext2fs_bg_flags(ext2_filsys fs, dgrp_t group);
892 extern void ext2fs_bg_flags_zap(ext2_filsys fs, dgrp_t group);
893 extern int ext2fs_bg_flags_test(ext2_filsys fs, dgrp_t group, __u16 bg_flag);
894 extern void ext2fs_bg_flags_set(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
895 extern void ext2fs_bg_flags_clear(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
896 extern __u16 ext2fs_bg_checksum(ext2_filsys fs, dgrp_t group);
897 extern void ext2fs_bg_checksum_set(ext2_filsys fs, dgrp_t group, __u16 checksum);
898 extern blk64_t ext2fs_file_acl_block(ext2_filsys fs,
899 const struct ext2_inode *inode);
900 extern void ext2fs_file_acl_block_set(ext2_filsys fs,
901 struct ext2_inode *inode, blk64_t blk);
902 extern errcode_t ext2fs_inode_size_set(ext2_filsys fs, struct ext2_inode *inode,
906 extern errcode_t ext2fs_block_iterate(ext2_filsys fs,
910 int (*func)(ext2_filsys fs,
915 errcode_t ext2fs_block_iterate2(ext2_filsys fs,
919 int (*func)(ext2_filsys fs,
921 e2_blkcnt_t blockcnt,
926 errcode_t ext2fs_block_iterate3(ext2_filsys fs,
930 int (*func)(ext2_filsys fs,
932 e2_blkcnt_t blockcnt,
939 extern errcode_t ext2fs_bmap(ext2_filsys fs, ext2_ino_t ino,
940 struct ext2_inode *inode,
941 char *block_buf, int bmap_flags,
942 blk_t block, blk_t *phys_blk);
943 extern errcode_t ext2fs_bmap2(ext2_filsys fs, ext2_ino_t ino,
944 struct ext2_inode *inode,
945 char *block_buf, int bmap_flags, blk64_t block,
946 int *ret_flags, blk64_t *phys_blk);
947 errcode_t ext2fs_map_cluster_block(ext2_filsys fs, ext2_ino_t ino,
948 struct ext2_inode *inode, blk64_t lblk,
953 extern errcode_t ext2fs_move_blocks(ext2_filsys fs,
954 ext2fs_block_bitmap reserve,
955 ext2fs_block_bitmap alloc_map,
960 extern errcode_t ext2fs_check_desc(ext2_filsys fs);
963 extern errcode_t ext2fs_close(ext2_filsys fs);
964 extern errcode_t ext2fs_close2(ext2_filsys fs, int flags);
965 extern errcode_t ext2fs_close_free(ext2_filsys *fs);
966 extern errcode_t ext2fs_flush(ext2_filsys fs);
967 extern errcode_t ext2fs_flush2(ext2_filsys fs, int flags);
968 extern int ext2fs_bg_has_super(ext2_filsys fs, dgrp_t group_block);
969 extern errcode_t ext2fs_super_and_bgd_loc2(ext2_filsys fs,
971 blk64_t *ret_super_blk,
972 blk64_t *ret_old_desc_blk,
973 blk64_t *ret_new_desc_blk,
974 blk_t *ret_used_blks);
975 extern int ext2fs_super_and_bgd_loc(ext2_filsys fs,
977 blk_t *ret_super_blk,
978 blk_t *ret_old_desc_blk,
979 blk_t *ret_new_desc_blk,
981 extern void ext2fs_update_dynamic_rev(ext2_filsys fs);
984 extern __u32 ext2fs_crc32_be(__u32 crc, unsigned char const *p, size_t len);
985 extern __u32 ext2fs_crc32c_le(__u32 crc, unsigned char const *p, size_t len);
988 extern errcode_t ext2fs_mmp_csum_set(ext2_filsys fs, struct mmp_struct *mmp);
989 extern int ext2fs_mmp_csum_verify(ext2_filsys, struct mmp_struct *mmp);
990 extern int ext2fs_verify_csum_type(ext2_filsys fs, struct ext2_super_block *sb);
991 extern errcode_t ext2fs_superblock_csum_set(ext2_filsys fs,
992 struct ext2_super_block *sb);
993 extern int ext2fs_superblock_csum_verify(ext2_filsys fs,
994 struct ext2_super_block *sb);
995 extern errcode_t ext2fs_ext_attr_block_csum_set(ext2_filsys fs,
996 ext2_ino_t inum, blk64_t block,
997 struct ext2_ext_attr_header *hdr);
998 extern int ext2fs_ext_attr_block_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1000 struct ext2_ext_attr_header *hdr);
1001 #define EXT2_DIRENT_TAIL(block, blocksize) \
1002 ((struct ext2_dir_entry_tail *)(((char *)(block)) + \
1003 (blocksize) - sizeof(struct ext2_dir_entry_tail)))
1005 extern void ext2fs_initialize_dirent_tail(ext2_filsys fs,
1006 struct ext2_dir_entry_tail *t);
1007 extern int ext2fs_dirent_has_tail(ext2_filsys fs,
1008 struct ext2_dir_entry *dirent);
1009 extern int ext2fs_dirent_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1010 struct ext2_dir_entry *dirent);
1011 extern int ext2fs_dir_block_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1012 struct ext2_dir_entry *dirent);
1013 extern errcode_t ext2fs_dir_block_csum_set(ext2_filsys fs, ext2_ino_t inum,
1014 struct ext2_dir_entry *dirent);
1015 extern errcode_t ext2fs_get_dx_countlimit(ext2_filsys fs,
1016 struct ext2_dir_entry *dirent,
1017 struct ext2_dx_countlimit **cc,
1019 extern errcode_t ext2fs_extent_block_csum_set(ext2_filsys fs,
1021 struct ext3_extent_header *eh);
1022 extern int ext2fs_extent_block_csum_verify(ext2_filsys fs,
1024 struct ext3_extent_header *eh);
1025 extern errcode_t ext2fs_block_bitmap_csum_set(ext2_filsys fs, dgrp_t group,
1026 char *bitmap, int size);
1027 extern int ext2fs_block_bitmap_csum_verify(ext2_filsys fs, dgrp_t group,
1028 char *bitmap, int size);
1029 extern errcode_t ext2fs_inode_bitmap_csum_set(ext2_filsys fs, dgrp_t group,
1030 char *bitmap, int size);
1031 extern int ext2fs_inode_bitmap_csum_verify(ext2_filsys fs, dgrp_t group,
1032 char *bitmap, int size);
1033 extern errcode_t ext2fs_inode_csum_set(ext2_filsys fs, ext2_ino_t inum,
1034 struct ext2_inode_large *inode);
1035 extern int ext2fs_inode_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1036 struct ext2_inode_large *inode);
1037 extern void ext2fs_group_desc_csum_set(ext2_filsys fs, dgrp_t group);
1038 extern int ext2fs_group_desc_csum_verify(ext2_filsys fs, dgrp_t group);
1039 extern errcode_t ext2fs_set_gdt_csum(ext2_filsys fs);
1040 extern __u16 ext2fs_group_desc_csum(ext2_filsys fs, dgrp_t group);
1043 extern errcode_t ext2fs_init_dblist(ext2_filsys fs, ext2_dblist *ret_dblist);
1044 extern errcode_t ext2fs_add_dir_block(ext2_dblist dblist, ext2_ino_t ino,
1045 blk_t blk, int blockcnt);
1046 extern errcode_t ext2fs_add_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
1047 blk64_t blk, e2_blkcnt_t blockcnt);
1048 extern void ext2fs_dblist_sort(ext2_dblist dblist,
1049 EXT2_QSORT_TYPE (*sortfunc)(const void *,
1051 extern void ext2fs_dblist_sort2(ext2_dblist dblist,
1052 EXT2_QSORT_TYPE (*sortfunc)(const void *,
1054 extern errcode_t ext2fs_dblist_iterate(ext2_dblist dblist,
1055 int (*func)(ext2_filsys fs, struct ext2_db_entry *db_info,
1058 extern errcode_t ext2fs_dblist_iterate2(ext2_dblist dblist,
1059 int (*func)(ext2_filsys fs, struct ext2_db_entry2 *db_info,
1062 extern errcode_t ext2fs_dblist_iterate3(ext2_dblist dblist,
1063 int (*func)(ext2_filsys fs, struct ext2_db_entry2 *db_info,
1065 unsigned long long start,
1066 unsigned long long count,
1068 extern errcode_t ext2fs_set_dir_block(ext2_dblist dblist, ext2_ino_t ino,
1069 blk_t blk, int blockcnt);
1070 extern errcode_t ext2fs_set_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
1071 blk64_t blk, e2_blkcnt_t blockcnt);
1072 extern errcode_t ext2fs_copy_dblist(ext2_dblist src,
1074 extern int ext2fs_dblist_count(ext2_dblist dblist);
1075 extern blk64_t ext2fs_dblist_count2(ext2_dblist dblist);
1076 extern errcode_t ext2fs_dblist_get_last(ext2_dblist dblist,
1077 struct ext2_db_entry **entry);
1078 extern errcode_t ext2fs_dblist_get_last2(ext2_dblist dblist,
1079 struct ext2_db_entry2 **entry);
1080 extern errcode_t ext2fs_dblist_drop_last(ext2_dblist dblist);
1084 ext2fs_dblist_dir_iterate(ext2_dblist dblist,
1087 int (*func)(ext2_ino_t dir,
1089 struct ext2_dir_entry *dirent,
1097 /* digest_encode.c */
1098 #define EXT2FS_DIGEST_SIZE EXT2FS_SHA256_LENGTH
1099 extern int ext2fs_digest_encode(const char *src, int len, char *dst);
1100 extern int ext2fs_digest_decode(const char *src, int len, char *dst);
1104 extern errcode_t ext2fs_read_dir_block(ext2_filsys fs, blk_t block,
1106 extern errcode_t ext2fs_read_dir_block2(ext2_filsys fs, blk_t block,
1107 void *buf, int flags);
1108 extern errcode_t ext2fs_read_dir_block3(ext2_filsys fs, blk64_t block,
1109 void *buf, int flags);
1110 extern errcode_t ext2fs_read_dir_block4(ext2_filsys fs, blk64_t block,
1111 void *buf, int flags, ext2_ino_t ino);
1112 extern errcode_t ext2fs_write_dir_block(ext2_filsys fs, blk_t block,
1114 extern errcode_t ext2fs_write_dir_block2(ext2_filsys fs, blk_t block,
1115 void *buf, int flags);
1116 extern errcode_t ext2fs_write_dir_block3(ext2_filsys fs, blk64_t block,
1117 void *buf, int flags);
1118 extern errcode_t ext2fs_write_dir_block4(ext2_filsys fs, blk64_t block,
1119 void *buf, int flags, ext2_ino_t ino);
1122 extern errcode_t ext2fs_dirhash(int version, const char *name, int len,
1124 ext2_dirhash_t *ret_hash,
1125 ext2_dirhash_t *ret_minor_hash);
1129 extern errcode_t ext2fs_get_rec_len(ext2_filsys fs,
1130 struct ext2_dir_entry *dirent,
1131 unsigned int *rec_len);
1132 extern errcode_t ext2fs_set_rec_len(ext2_filsys fs,
1134 struct ext2_dir_entry *dirent);
1135 extern errcode_t ext2fs_dir_iterate(ext2_filsys fs,
1139 int (*func)(struct ext2_dir_entry *dirent,
1145 extern errcode_t ext2fs_dir_iterate2(ext2_filsys fs,
1149 int (*func)(ext2_ino_t dir,
1151 struct ext2_dir_entry *dirent,
1159 extern errcode_t ext2fs_dup_handle(ext2_filsys src, ext2_filsys *dest);
1162 extern errcode_t ext2fs_expand_dir(ext2_filsys fs, ext2_ino_t dir);
1165 extern __u32 ext2fs_ext_attr_hash_entry(struct ext2_ext_attr_entry *entry,
1167 extern errcode_t ext2fs_read_ext_attr(ext2_filsys fs, blk_t block, void *buf);
1168 extern errcode_t ext2fs_read_ext_attr2(ext2_filsys fs, blk64_t block,
1170 extern errcode_t ext2fs_read_ext_attr3(ext2_filsys fs, blk64_t block,
1171 void *buf, ext2_ino_t inum);
1172 extern errcode_t ext2fs_write_ext_attr(ext2_filsys fs, blk_t block,
1174 extern errcode_t ext2fs_write_ext_attr2(ext2_filsys fs, blk64_t block,
1176 extern errcode_t ext2fs_write_ext_attr3(ext2_filsys fs, blk64_t block,
1177 void *buf, ext2_ino_t inum);
1178 extern errcode_t ext2fs_adjust_ea_refcount(ext2_filsys fs, blk_t blk,
1180 int adjust, __u32 *newcount);
1181 extern errcode_t ext2fs_adjust_ea_refcount2(ext2_filsys fs, blk64_t blk,
1183 int adjust, __u32 *newcount);
1184 extern errcode_t ext2fs_adjust_ea_refcount3(ext2_filsys fs, blk64_t blk,
1186 int adjust, __u32 *newcount,
1188 errcode_t ext2fs_xattrs_write(struct ext2_xattr_handle *handle);
1189 errcode_t ext2fs_xattrs_read(struct ext2_xattr_handle *handle);
1190 errcode_t ext2fs_xattrs_iterate(struct ext2_xattr_handle *h,
1191 int (*func)(char *name, char *value,
1192 size_t value_len, void *data),
1194 errcode_t ext2fs_xattr_get(struct ext2_xattr_handle *h, const char *key,
1195 void **value, size_t *value_len);
1196 errcode_t ext2fs_xattr_set(struct ext2_xattr_handle *handle,
1200 errcode_t ext2fs_xattr_remove(struct ext2_xattr_handle *handle,
1202 errcode_t ext2fs_xattrs_open(ext2_filsys fs, ext2_ino_t ino,
1203 struct ext2_xattr_handle **handle);
1204 errcode_t ext2fs_xattrs_close(struct ext2_xattr_handle **handle);
1205 errcode_t ext2fs_free_ext_attr(ext2_filsys fs, ext2_ino_t ino,
1206 struct ext2_inode_large *inode);
1207 errcode_t ext2fs_xattrs_count(struct ext2_xattr_handle *handle, size_t *count);
1208 errcode_t ext2fs_xattr_inode_max_size(ext2_filsys fs, ext2_ino_t ino,
1212 extern errcode_t ext2fs_extent_header_verify(void *ptr, int size);
1213 extern errcode_t ext2fs_extent_open(ext2_filsys fs, ext2_ino_t ino,
1214 ext2_extent_handle_t *handle);
1215 extern errcode_t ext2fs_extent_open2(ext2_filsys fs, ext2_ino_t ino,
1216 struct ext2_inode *inode,
1217 ext2_extent_handle_t *ret_handle);
1218 extern void ext2fs_extent_free(ext2_extent_handle_t handle);
1219 extern errcode_t ext2fs_extent_get(ext2_extent_handle_t handle,
1220 int flags, struct ext2fs_extent *extent);
1221 extern errcode_t ext2fs_extent_node_split(ext2_extent_handle_t handle);
1222 extern errcode_t ext2fs_extent_replace(ext2_extent_handle_t handle, int flags,
1223 struct ext2fs_extent *extent);
1224 extern errcode_t ext2fs_extent_insert(ext2_extent_handle_t handle, int flags,
1225 struct ext2fs_extent *extent);
1226 extern errcode_t ext2fs_extent_set_bmap(ext2_extent_handle_t handle,
1227 blk64_t logical, blk64_t physical,
1229 extern errcode_t ext2fs_extent_delete(ext2_extent_handle_t handle, int flags);
1230 extern errcode_t ext2fs_extent_get_info(ext2_extent_handle_t handle,
1231 struct ext2_extent_info *info);
1232 extern errcode_t ext2fs_extent_goto(ext2_extent_handle_t handle,
1234 extern errcode_t ext2fs_extent_goto2(ext2_extent_handle_t handle,
1235 int leaf_level, blk64_t blk);
1236 extern errcode_t ext2fs_extent_fix_parents(ext2_extent_handle_t handle);
1237 size_t ext2fs_max_extent_depth(ext2_extent_handle_t handle);
1240 #define EXT2_FALLOCATE_ZERO_BLOCKS (0x1)
1241 #define EXT2_FALLOCATE_FORCE_INIT (0x2)
1242 #define EXT2_FALLOCATE_FORCE_UNINIT (0x4)
1243 #define EXT2_FALLOCATE_INIT_BEYOND_EOF (0x8)
1244 #define EXT2_FALLOCATE_ALL_FLAGS (0xF)
1245 errcode_t ext2fs_fallocate(ext2_filsys fs, int flags, ext2_ino_t ino,
1246 struct ext2_inode *inode, blk64_t goal,
1247 blk64_t start, blk64_t len);
1250 extern errcode_t ext2fs_file_open2(ext2_filsys fs, ext2_ino_t ino,
1251 struct ext2_inode *inode,
1252 int flags, ext2_file_t *ret);
1253 extern errcode_t ext2fs_file_open(ext2_filsys fs, ext2_ino_t ino,
1254 int flags, ext2_file_t *ret);
1255 extern ext2_filsys ext2fs_file_get_fs(ext2_file_t file);
1256 struct ext2_inode *ext2fs_file_get_inode(ext2_file_t file);
1257 extern ext2_ino_t ext2fs_file_get_inode_num(ext2_file_t file);
1258 extern errcode_t ext2fs_file_close(ext2_file_t file);
1259 extern errcode_t ext2fs_file_flush(ext2_file_t file);
1260 extern errcode_t ext2fs_file_read(ext2_file_t file, void *buf,
1261 unsigned int wanted, unsigned int *got);
1262 extern errcode_t ext2fs_file_write(ext2_file_t file, const void *buf,
1263 unsigned int nbytes, unsigned int *written);
1264 extern errcode_t ext2fs_file_llseek(ext2_file_t file, __u64 offset,
1265 int whence, __u64 *ret_pos);
1266 extern errcode_t ext2fs_file_lseek(ext2_file_t file, ext2_off_t offset,
1267 int whence, ext2_off_t *ret_pos);
1268 errcode_t ext2fs_file_get_lsize(ext2_file_t file, __u64 *ret_size);
1269 extern ext2_off_t ext2fs_file_get_size(ext2_file_t file);
1270 extern errcode_t ext2fs_file_set_size(ext2_file_t file, ext2_off_t size);
1271 extern errcode_t ext2fs_file_set_size2(ext2_file_t file, ext2_off64_t size);
1274 extern char *ext2fs_find_block_device(dev_t device);
1277 extern errcode_t ext2fs_sync_device(int fd, int flushb);
1280 extern void ext2fs_free(ext2_filsys fs);
1281 extern void ext2fs_free_dblist(ext2_dblist dblist);
1282 extern void ext2fs_badblocks_list_free(ext2_badblocks_list bb);
1283 extern void ext2fs_u32_list_free(ext2_u32_list bb);
1286 extern void ext2fs_free_generic_bitmap(ext2fs_inode_bitmap bitmap);
1287 extern errcode_t ext2fs_make_generic_bitmap(errcode_t magic, ext2_filsys fs,
1288 __u32 start, __u32 end,
1290 const char *descr, char *init_map,
1291 ext2fs_generic_bitmap *ret);
1292 extern errcode_t ext2fs_allocate_generic_bitmap(__u32 start,
1296 ext2fs_generic_bitmap *ret);
1297 extern errcode_t ext2fs_copy_generic_bitmap(ext2fs_generic_bitmap src,
1298 ext2fs_generic_bitmap *dest);
1299 extern void ext2fs_clear_generic_bitmap(ext2fs_generic_bitmap bitmap);
1300 extern errcode_t ext2fs_fudge_generic_bitmap_end(ext2fs_inode_bitmap bitmap,
1305 extern void ext2fs_set_generic_bitmap_padding(ext2fs_generic_bitmap map);
1306 extern errcode_t ext2fs_resize_generic_bitmap(errcode_t magic,
1309 ext2fs_generic_bitmap bmap);
1310 extern errcode_t ext2fs_compare_generic_bitmap(errcode_t magic, errcode_t neq,
1311 ext2fs_generic_bitmap bm1,
1312 ext2fs_generic_bitmap bm2);
1313 extern errcode_t ext2fs_get_generic_bitmap_range(ext2fs_generic_bitmap bmap,
1315 __u32 start, __u32 num,
1317 extern errcode_t ext2fs_set_generic_bitmap_range(ext2fs_generic_bitmap bmap,
1319 __u32 start, __u32 num,
1321 extern errcode_t ext2fs_find_first_zero_generic_bitmap(ext2fs_generic_bitmap bitmap,
1322 __u32 start, __u32 end,
1324 extern errcode_t ext2fs_find_first_set_generic_bitmap(ext2fs_generic_bitmap bitmap,
1325 __u32 start, __u32 end,
1328 /* gen_bitmap64.c */
1329 void ext2fs_free_generic_bmap(ext2fs_generic_bitmap bmap);
1330 errcode_t ext2fs_alloc_generic_bmap(ext2_filsys fs, errcode_t magic,
1331 int type, __u64 start, __u64 end,
1334 ext2fs_generic_bitmap *ret);
1335 errcode_t ext2fs_copy_generic_bmap(ext2fs_generic_bitmap src,
1336 ext2fs_generic_bitmap *dest);
1337 void ext2fs_clear_generic_bmap(ext2fs_generic_bitmap bitmap);
1338 errcode_t ext2fs_fudge_generic_bmap_end(ext2fs_generic_bitmap bitmap,
1340 __u64 end, __u64 *oend);
1341 void ext2fs_set_generic_bmap_padding(ext2fs_generic_bitmap bmap);
1342 errcode_t ext2fs_resize_generic_bmap(ext2fs_generic_bitmap bmap,
1344 __u64 new_real_end);
1345 errcode_t ext2fs_compare_generic_bmap(errcode_t neq,
1346 ext2fs_generic_bitmap bm1,
1347 ext2fs_generic_bitmap bm2);
1348 errcode_t ext2fs_get_generic_bmap_range(ext2fs_generic_bitmap bmap,
1349 __u64 start, unsigned int num,
1351 errcode_t ext2fs_set_generic_bmap_range(ext2fs_generic_bitmap bmap,
1352 __u64 start, unsigned int num,
1354 errcode_t ext2fs_convert_subcluster_bitmap(ext2_filsys fs,
1355 ext2fs_block_bitmap *bitmap);
1357 /* get_num_dirs.c */
1358 extern errcode_t ext2fs_get_num_dirs(ext2_filsys fs, ext2_ino_t *ret_num_dirs);
1361 extern errcode_t ext2fs_get_device_size(const char *file, int blocksize,
1363 extern errcode_t ext2fs_get_device_size2(const char *file, int blocksize,
1364 blk64_t *retblocks);
1367 extern int ext2fs_get_dio_alignment(int fd);
1368 errcode_t ext2fs_get_device_sectsize(const char *file, int *sectsize);
1369 errcode_t ext2fs_get_device_phys_sectsize(const char *file, int *sectsize);
1372 errcode_t ext2fs_iblk_add_blocks(ext2_filsys fs, struct ext2_inode *inode,
1373 blk64_t num_blocks);
1374 errcode_t ext2fs_iblk_sub_blocks(ext2_filsys fs, struct ext2_inode *inode,
1375 blk64_t num_blocks);
1376 errcode_t ext2fs_iblk_set(ext2_filsys fs, struct ext2_inode *inode, blk64_t b);
1379 extern errcode_t ext2fs_image_inode_write(ext2_filsys fs, int fd, int flags);
1380 extern errcode_t ext2fs_image_inode_read(ext2_filsys fs, int fd, int flags);
1381 extern errcode_t ext2fs_image_super_write(ext2_filsys fs, int fd, int flags);
1382 extern errcode_t ext2fs_image_super_read(ext2_filsys fs, int fd, int flags);
1383 extern errcode_t ext2fs_image_bitmap_write(ext2_filsys fs, int fd, int flags);
1384 extern errcode_t ext2fs_image_bitmap_read(ext2_filsys fs, int fd, int flags);
1387 errcode_t ext2fs_read_ind_block(ext2_filsys fs, blk_t blk, void *buf);
1388 errcode_t ext2fs_write_ind_block(ext2_filsys fs, blk_t blk, void *buf);
1391 extern errcode_t ext2fs_initialize(const char *name, int flags,
1392 struct ext2_super_block *param,
1393 io_manager manager, ext2_filsys *ret_fs);
1396 extern void ext2fs_free_icount(ext2_icount_t icount);
1397 extern errcode_t ext2fs_create_icount_tdb(ext2_filsys fs, char *tdb_dir,
1398 int flags, ext2_icount_t *ret);
1399 extern errcode_t ext2fs_create_icount2(ext2_filsys fs, int flags,
1401 ext2_icount_t hint, ext2_icount_t *ret);
1402 extern errcode_t ext2fs_create_icount(ext2_filsys fs, int flags,
1404 ext2_icount_t *ret);
1405 extern errcode_t ext2fs_icount_fetch(ext2_icount_t icount, ext2_ino_t ino,
1407 extern errcode_t ext2fs_icount_increment(ext2_icount_t icount, ext2_ino_t ino,
1409 extern errcode_t ext2fs_icount_decrement(ext2_icount_t icount, ext2_ino_t ino,
1411 extern errcode_t ext2fs_icount_store(ext2_icount_t icount, ext2_ino_t ino,
1413 extern ext2_ino_t ext2fs_get_icount_size(ext2_icount_t icount);
1414 errcode_t ext2fs_icount_validate(ext2_icount_t icount, FILE *);
1418 extern errcode_t ext2fs_get_memalign(unsigned long size,
1419 unsigned long align, void *ptr);
1422 extern errcode_t ext2fs_inline_data_init(ext2_filsys fs, ext2_ino_t ino);
1423 extern errcode_t ext2fs_inline_data_size(ext2_filsys fs, ext2_ino_t ino,
1425 extern errcode_t ext2fs_inline_data_get(ext2_filsys fs, ext2_ino_t ino,
1426 struct ext2_inode *inode,
1427 void *buf, size_t *size);
1428 extern errcode_t ext2fs_inline_data_set(ext2_filsys fs, ext2_ino_t ino,
1429 struct ext2_inode *inode,
1430 void *buf, size_t size);
1433 extern errcode_t ext2fs_create_inode_cache(ext2_filsys fs,
1434 unsigned int cache_size);
1435 extern void ext2fs_free_inode_cache(struct ext2_inode_cache *icache);
1436 extern errcode_t ext2fs_flush_icache(ext2_filsys fs);
1437 extern errcode_t ext2fs_get_next_inode_full(ext2_inode_scan scan,
1439 struct ext2_inode *inode,
1441 #define EXT2_INODE_SCAN_DEFAULT_BUFFER_BLOCKS 8
1442 extern errcode_t ext2fs_open_inode_scan(ext2_filsys fs, int buffer_blocks,
1443 ext2_inode_scan *ret_scan);
1444 extern void ext2fs_close_inode_scan(ext2_inode_scan scan);
1445 extern errcode_t ext2fs_get_next_inode(ext2_inode_scan scan, ext2_ino_t *ino,
1446 struct ext2_inode *inode);
1447 extern errcode_t ext2fs_inode_scan_goto_blockgroup(ext2_inode_scan scan,
1449 extern void ext2fs_set_inode_callback
1450 (ext2_inode_scan scan,
1451 errcode_t (*done_group)(ext2_filsys fs,
1452 ext2_inode_scan scan,
1455 void *done_group_data);
1456 extern int ext2fs_inode_scan_flags(ext2_inode_scan scan, int set_flags,
1458 extern errcode_t ext2fs_read_inode_full(ext2_filsys fs, ext2_ino_t ino,
1459 struct ext2_inode * inode,
1461 extern errcode_t ext2fs_read_inode (ext2_filsys fs, ext2_ino_t ino,
1462 struct ext2_inode * inode);
1463 extern errcode_t ext2fs_write_inode_full(ext2_filsys fs, ext2_ino_t ino,
1464 struct ext2_inode * inode,
1466 extern errcode_t ext2fs_write_inode(ext2_filsys fs, ext2_ino_t ino,
1467 struct ext2_inode * inode);
1468 extern errcode_t ext2fs_write_new_inode(ext2_filsys fs, ext2_ino_t ino,
1469 struct ext2_inode * inode);
1470 extern errcode_t ext2fs_get_blocks(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
1471 extern errcode_t ext2fs_check_directory(ext2_filsys fs, ext2_ino_t ino);
1474 extern io_manager inode_io_manager;
1475 extern errcode_t ext2fs_inode_io_intern(ext2_filsys fs, ext2_ino_t ino,
1477 extern errcode_t ext2fs_inode_io_intern2(ext2_filsys fs, ext2_ino_t ino,
1478 struct ext2_inode *inode,
1482 extern errcode_t ext2fs_check_if_mounted(const char *file, int *mount_flags);
1483 extern errcode_t ext2fs_check_mount_point(const char *device, int *mount_flags,
1484 char *mtpt, int mtlen);
1488 * NOTE: This function removes from an inode the blocks "start", "end", and
1489 * every block in between.
1491 extern errcode_t ext2fs_punch(ext2_filsys fs, ext2_ino_t ino,
1492 struct ext2_inode *inode,
1493 char *block_buf, blk64_t start,
1497 extern errcode_t ext2fs_lookup(ext2_filsys fs, ext2_ino_t dir, const char *name,
1498 int namelen, char *buf, ext2_ino_t *inode);
1499 extern errcode_t ext2fs_namei(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1500 const char *name, ext2_ino_t *inode);
1501 errcode_t ext2fs_namei_follow(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1502 const char *name, ext2_ino_t *inode);
1503 extern errcode_t ext2fs_follow_link(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1504 ext2_ino_t inode, ext2_ino_t *res_inode);
1507 int ext2fs_native_flag(void);
1510 extern errcode_t ext2fs_new_dir_block(ext2_filsys fs, ext2_ino_t dir_ino,
1511 ext2_ino_t parent_ino, char **block);
1512 extern errcode_t ext2fs_new_dir_inline_data(ext2_filsys fs, ext2_ino_t dir_ino,
1513 ext2_ino_t parent_ino, __u32 *iblock);
1516 extern errcode_t ext2fs_mkdir(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t inum,
1520 extern errcode_t ext2fs_zero_blocks(ext2_filsys fs, blk_t blk, int num,
1521 blk_t *ret_blk, int *ret_count);
1522 extern errcode_t ext2fs_zero_blocks2(ext2_filsys fs, blk64_t blk, int num,
1523 blk64_t *ret_blk, int *ret_count);
1524 extern errcode_t ext2fs_create_journal_superblock(ext2_filsys fs,
1525 __u32 num_blocks, int flags,
1527 extern errcode_t ext2fs_add_journal_device(ext2_filsys fs,
1528 ext2_filsys journal_dev);
1529 extern errcode_t ext2fs_add_journal_inode(ext2_filsys fs, blk_t num_blocks,
1531 extern errcode_t ext2fs_add_journal_inode2(ext2_filsys fs, blk_t num_blocks,
1532 blk64_t goal, int flags);
1533 extern int ext2fs_default_journal_size(__u64 num_blocks);
1534 extern int ext2fs_journal_sb_start(int blocksize);
1537 extern errcode_t ext2fs_open(const char *name, int flags, int superblock,
1538 unsigned int block_size, io_manager manager,
1539 ext2_filsys *ret_fs);
1540 extern errcode_t ext2fs_open2(const char *name, const char *io_options,
1541 int flags, int superblock,
1542 unsigned int block_size, io_manager manager,
1543 ext2_filsys *ret_fs);
1545 * The dgrp_t argument to these two functions is not actually a group number
1546 * but a block number offset within a group table! Convert with the formula
1547 * (group_number / groups_per_block).
1549 extern blk64_t ext2fs_descriptor_block_loc2(ext2_filsys fs,
1550 blk64_t group_block, dgrp_t i);
1551 extern blk_t ext2fs_descriptor_block_loc(ext2_filsys fs, blk_t group_block,
1553 errcode_t ext2fs_get_data_io(ext2_filsys fs, io_channel *old_io);
1554 errcode_t ext2fs_set_data_io(ext2_filsys fs, io_channel new_io);
1555 errcode_t ext2fs_rewrite_to_io(ext2_filsys fs, io_channel new_io);
1557 /* get_pathname.c */
1558 extern errcode_t ext2fs_get_pathname(ext2_filsys fs, ext2_ino_t dir, ext2_ino_t ino,
1562 errcode_t ext2fs_link(ext2_filsys fs, ext2_ino_t dir, const char *name,
1563 ext2_ino_t ino, int flags);
1564 errcode_t ext2fs_unlink(ext2_filsys fs, ext2_ino_t dir, const char *name,
1565 ext2_ino_t ino, int flags);
1568 errcode_t ext2fs_symlink(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t ino,
1569 const char *name, const char *target);
1572 errcode_t ext2fs_mmp_read(ext2_filsys fs, blk64_t mmp_blk, void *buf);
1573 errcode_t ext2fs_mmp_write(ext2_filsys fs, blk64_t mmp_blk, void *buf);
1574 errcode_t ext2fs_mmp_clear(ext2_filsys fs);
1575 errcode_t ext2fs_mmp_init(ext2_filsys fs);
1576 errcode_t ext2fs_mmp_start(ext2_filsys fs);
1577 errcode_t ext2fs_mmp_update(ext2_filsys fs);
1578 errcode_t ext2fs_mmp_update2(ext2_filsys fs, int immediately);
1579 errcode_t ext2fs_mmp_stop(ext2_filsys fs);
1580 unsigned ext2fs_mmp_new_seq(void);
1583 extern errcode_t ext2fs_read_bb_inode(ext2_filsys fs,
1584 ext2_badblocks_list *bb_list);
1586 /* read_bb_file.c */
1587 extern errcode_t ext2fs_read_bb_FILE2(ext2_filsys fs, FILE *f,
1588 ext2_badblocks_list *bb_list,
1590 void (*invalid)(ext2_filsys fs,
1594 extern errcode_t ext2fs_read_bb_FILE(ext2_filsys fs, FILE *f,
1595 ext2_badblocks_list *bb_list,
1596 void (*invalid)(ext2_filsys fs,
1600 extern errcode_t ext2fs_create_resize_inode(ext2_filsys fs);
1603 #define EXT2FS_SHA256_LENGTH 32
1605 extern void ext2fs_sha256(const unsigned char *in, unsigned long in_size,
1606 unsigned char out[EXT2FS_SHA256_LENGTH]);
1610 #define EXT2FS_SHA512_LENGTH 64
1611 extern void ext2fs_sha512(const unsigned char *in, unsigned long in_size,
1612 unsigned char out[EXT2FS_SHA512_LENGTH]);
1615 extern errcode_t ext2fs_dirent_swab_in2(ext2_filsys fs, char *buf, size_t size,
1617 extern errcode_t ext2fs_dirent_swab_in(ext2_filsys fs, char *buf, int flags);
1618 extern errcode_t ext2fs_dirent_swab_out2(ext2_filsys fs, char *buf, size_t size,
1620 extern errcode_t ext2fs_dirent_swab_out(ext2_filsys fs, char *buf, int flags);
1621 extern void ext2fs_swap_ext_attr(char *to, char *from, int bufsize,
1623 extern void ext2fs_swap_ext_attr_header(struct ext2_ext_attr_header *to_header,
1624 struct ext2_ext_attr_header *from_hdr);
1625 extern void ext2fs_swap_ext_attr_entry(struct ext2_ext_attr_entry *to_entry,
1626 struct ext2_ext_attr_entry *from_entry);
1627 extern void ext2fs_swap_super(struct ext2_super_block * super);
1628 extern void ext2fs_swap_group_desc(struct ext2_group_desc *gdp);
1629 extern void ext2fs_swap_group_desc2(ext2_filsys, struct ext2_group_desc *gdp);
1630 extern void ext2fs_swap_inode_full(ext2_filsys fs, struct ext2_inode_large *t,
1631 struct ext2_inode_large *f, int hostorder,
1633 extern void ext2fs_swap_inode(ext2_filsys fs,struct ext2_inode *t,
1634 struct ext2_inode *f, int hostorder);
1635 extern void ext2fs_swap_mmp(struct mmp_struct *mmp);
1638 extern int ext2fs_open_file(const char *pathname, int flags, mode_t mode);
1639 extern int ext2fs_stat(const char *path, ext2fs_struct_stat *buf);
1640 extern int ext2fs_fstat(int fd, ext2fs_struct_stat *buf);
1643 extern int ext2fs_inode_has_valid_blocks(struct ext2_inode *inode);
1644 extern int ext2fs_inode_has_valid_blocks2(ext2_filsys fs,
1645 struct ext2_inode *inode);
1648 extern int ext2fs_parse_version_string(const char *ver_string);
1649 extern int ext2fs_get_library_version(const char **ver_string,
1650 const char **date_string);
1652 /* write_bb_file.c */
1653 extern errcode_t ext2fs_write_bb_FILE(ext2_badblocks_list bb_list,
1658 /* inline functions */
1659 #ifdef NO_INLINE_FUNCS
1660 extern errcode_t ext2fs_get_mem(unsigned long size, void *ptr);
1661 extern errcode_t ext2fs_get_memzero(unsigned long size, void *ptr);
1662 extern errcode_t ext2fs_get_array(unsigned long count,
1663 unsigned long size, void *ptr);
1664 extern errcode_t ext2fs_get_arrayzero(unsigned long count,
1665 unsigned long size, void *ptr);
1666 extern errcode_t ext2fs_free_mem(void *ptr);
1667 extern errcode_t ext2fs_resize_mem(unsigned long old_size,
1668 unsigned long size, void *ptr);
1669 extern void ext2fs_mark_super_dirty(ext2_filsys fs);
1670 extern void ext2fs_mark_changed(ext2_filsys fs);
1671 extern int ext2fs_test_changed(ext2_filsys fs);
1672 extern void ext2fs_mark_valid(ext2_filsys fs);
1673 extern void ext2fs_unmark_valid(ext2_filsys fs);
1674 extern int ext2fs_test_valid(ext2_filsys fs);
1675 extern void ext2fs_mark_ib_dirty(ext2_filsys fs);
1676 extern void ext2fs_mark_bb_dirty(ext2_filsys fs);
1677 extern int ext2fs_test_ib_dirty(ext2_filsys fs);
1678 extern int ext2fs_test_bb_dirty(ext2_filsys fs);
1679 extern dgrp_t ext2fs_group_of_blk(ext2_filsys fs, blk_t blk);
1680 extern dgrp_t ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino);
1681 extern blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group);
1682 extern blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group);
1683 extern blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
1684 struct ext2_inode *inode);
1685 extern unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b);
1686 extern __u64 ext2fs_div64_ceil(__u64 a, __u64 b);
1687 extern int ext2fs_dirent_name_len(const struct ext2_dir_entry *entry);
1688 extern void ext2fs_dirent_set_name_len(struct ext2_dir_entry *entry, int len);
1689 extern int ext2fs_dirent_file_type(const struct ext2_dir_entry *entry);
1690 extern void ext2fs_dirent_set_file_type(struct ext2_dir_entry *entry, int type);
1695 * The actual inlined functions definitions themselves...
1697 * If NO_INLINE_FUNCS is defined, then we won't try to do inline
1700 #if (defined(INCLUDE_INLINE_FUNCS) || !defined(NO_INLINE_FUNCS))
1701 #ifdef INCLUDE_INLINE_FUNCS
1702 #define _INLINE_ extern
1704 #if (__STDC_VERSION__ >= 199901L)
1705 #define _INLINE_ inline
1708 #define _INLINE_ extern __inline__
1709 #else /* For Watcom C */
1710 #define _INLINE_ extern inline
1711 #endif /* __GNUC__ */
1712 #endif /* __STDC_VERSION__ >= 199901L */
1715 static inline void ext2fs_init_csum_seed(ext2_filsys fs)
1717 if (!ext2fs_has_feature_metadata_csum(fs->super))
1720 fs->csum_seed = ext2fs_crc32c_le(~0, fs->super->s_uuid,
1721 sizeof(fs->super->s_uuid));
1724 #ifndef EXT2_CUSTOM_MEMORY_ROUTINES
1727 * Allocate memory. The 'ptr' arg must point to a pointer.
1729 _INLINE_ errcode_t ext2fs_get_mem(unsigned long size, void *ptr)
1735 return EXT2_ET_NO_MEMORY;
1736 memcpy(ptr, &pp, sizeof (pp));
1740 _INLINE_ errcode_t ext2fs_get_memzero(unsigned long size, void *ptr)
1746 return EXT2_ET_NO_MEMORY;
1747 memset(pp, 0, size);
1748 memcpy(ptr, &pp, sizeof(pp));
1752 _INLINE_ errcode_t ext2fs_get_array(unsigned long count, unsigned long size, void *ptr)
1754 if (count && (~0UL)/count < size)
1755 return EXT2_ET_NO_MEMORY;
1756 return ext2fs_get_mem(count*size, ptr);
1759 _INLINE_ errcode_t ext2fs_get_arrayzero(unsigned long count,
1760 unsigned long size, void *ptr)
1764 if (count && (~0UL)/count < size)
1765 return EXT2_ET_NO_MEMORY;
1766 pp = calloc(count, size);
1768 return EXT2_ET_NO_MEMORY;
1769 memcpy(ptr, &pp, sizeof(pp));
1774 * Free memory. The 'ptr' arg must point to a pointer.
1776 _INLINE_ errcode_t ext2fs_free_mem(void *ptr)
1780 memcpy(&p, ptr, sizeof(p));
1783 memcpy(ptr, &p, sizeof(p));
1788 * Resize memory. The 'ptr' arg must point to a pointer.
1790 _INLINE_ errcode_t ext2fs_resize_mem(unsigned long EXT2FS_ATTR((unused)) old_size,
1791 unsigned long size, void *ptr)
1795 /* Use "memcpy" for pointer assignments here to avoid problems
1796 * with C99 strict type aliasing rules. */
1797 memcpy(&p, ptr, sizeof(p));
1798 p = realloc(p, size);
1800 return EXT2_ET_NO_MEMORY;
1801 memcpy(ptr, &p, sizeof(p));
1804 #endif /* Custom memory routines */
1807 * Mark a filesystem superblock as dirty
1809 _INLINE_ void ext2fs_mark_super_dirty(ext2_filsys fs)
1811 fs->flags |= EXT2_FLAG_DIRTY | EXT2_FLAG_CHANGED;
1815 * Mark a filesystem as changed
1817 _INLINE_ void ext2fs_mark_changed(ext2_filsys fs)
1819 fs->flags |= EXT2_FLAG_CHANGED;
1823 * Check to see if a filesystem has changed
1825 _INLINE_ int ext2fs_test_changed(ext2_filsys fs)
1827 return (fs->flags & EXT2_FLAG_CHANGED);
1831 * Mark a filesystem as valid
1833 _INLINE_ void ext2fs_mark_valid(ext2_filsys fs)
1835 fs->flags |= EXT2_FLAG_VALID;
1839 * Mark a filesystem as NOT valid
1841 _INLINE_ void ext2fs_unmark_valid(ext2_filsys fs)
1843 fs->flags &= ~EXT2_FLAG_VALID;
1847 * Check to see if a filesystem is valid
1849 _INLINE_ int ext2fs_test_valid(ext2_filsys fs)
1851 return (fs->flags & EXT2_FLAG_VALID);
1855 * Mark the inode bitmap as dirty
1857 _INLINE_ void ext2fs_mark_ib_dirty(ext2_filsys fs)
1859 fs->flags |= EXT2_FLAG_IB_DIRTY | EXT2_FLAG_CHANGED;
1863 * Mark the block bitmap as dirty
1865 _INLINE_ void ext2fs_mark_bb_dirty(ext2_filsys fs)
1867 fs->flags |= EXT2_FLAG_BB_DIRTY | EXT2_FLAG_CHANGED;
1871 * Check to see if a filesystem's inode bitmap is dirty
1873 _INLINE_ int ext2fs_test_ib_dirty(ext2_filsys fs)
1875 return (fs->flags & EXT2_FLAG_IB_DIRTY);
1879 * Check to see if a filesystem's block bitmap is dirty
1881 _INLINE_ int ext2fs_test_bb_dirty(ext2_filsys fs)
1883 return (fs->flags & EXT2_FLAG_BB_DIRTY);
1887 * Return the group # of a block
1889 _INLINE_ dgrp_t ext2fs_group_of_blk(ext2_filsys fs, blk_t blk)
1891 return ext2fs_group_of_blk2(fs, blk);
1894 * Return the group # of an inode number
1896 _INLINE_ dgrp_t ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino)
1898 return (ino - 1) / fs->super->s_inodes_per_group;
1902 * Return the first block (inclusive) in a group
1904 _INLINE_ blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group)
1906 return (blk_t) ext2fs_group_first_block2(fs, group);
1910 * Return the last block (inclusive) in a group
1912 _INLINE_ blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group)
1914 return (blk_t) ext2fs_group_last_block2(fs, group);
1917 _INLINE_ blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
1918 struct ext2_inode *inode)
1920 return (blk_t) ext2fs_inode_data_blocks2(fs, inode);
1924 * This is an efficient, overflow safe way of calculating ceil((1.0 * a) / b)
1926 _INLINE_ unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b)
1930 return ((a - 1) / b) + 1;
1933 _INLINE_ __u64 ext2fs_div64_ceil(__u64 a, __u64 b)
1937 return ((a - 1) / b) + 1;
1940 _INLINE_ int ext2fs_dirent_name_len(const struct ext2_dir_entry *entry)
1942 return entry->name_len & 0xff;
1945 _INLINE_ void ext2fs_dirent_set_name_len(struct ext2_dir_entry *entry, int len)
1947 entry->name_len = (entry->name_len & 0xff00) | (len & 0xff);
1950 _INLINE_ int ext2fs_dirent_file_type(const struct ext2_dir_entry *entry)
1952 return entry->name_len >> 8;
1955 _INLINE_ void ext2fs_dirent_set_file_type(struct ext2_dir_entry *entry, int type)
1957 entry->name_len = (entry->name_len & 0xff) | (type << 8);
1967 #endif /* _EXT2FS_EXT2FS_H */