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 EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
639 EXT4_FEATURE_RO_COMPAT_GDT_CSUM |
640 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM);
643 /* The LARGE_FILE feature should be set if we have stored files 2GB+ in size */
644 static inline int ext2fs_needs_large_file_feature(unsigned long long file_size)
646 return file_size >= 0x80000000ULL;
650 extern errcode_t ext2fs_new_inode(ext2_filsys fs, ext2_ino_t dir, int mode,
651 ext2fs_inode_bitmap map, ext2_ino_t *ret);
652 extern errcode_t ext2fs_new_block(ext2_filsys fs, blk_t goal,
653 ext2fs_block_bitmap map, blk_t *ret);
654 extern errcode_t ext2fs_new_block2(ext2_filsys fs, blk64_t goal,
655 ext2fs_block_bitmap map, blk64_t *ret);
656 extern errcode_t ext2fs_get_free_blocks(ext2_filsys fs, blk_t start,
657 blk_t finish, int num,
658 ext2fs_block_bitmap map,
660 extern errcode_t ext2fs_get_free_blocks2(ext2_filsys fs, blk64_t start,
661 blk64_t finish, int num,
662 ext2fs_block_bitmap map,
664 extern errcode_t ext2fs_alloc_block(ext2_filsys fs, blk_t goal,
665 char *block_buf, blk_t *ret);
666 extern errcode_t ext2fs_alloc_block2(ext2_filsys fs, blk64_t goal,
667 char *block_buf, blk64_t *ret);
668 extern void ext2fs_set_alloc_block_callback(ext2_filsys fs,
669 errcode_t (*func)(ext2_filsys fs,
672 errcode_t (**old)(ext2_filsys fs,
675 blk64_t ext2fs_find_inode_goal(ext2_filsys fs, ext2_ino_t ino,
676 struct ext2_inode *inode, blk64_t lblk);
677 extern void ext2fs_set_new_range_callback(ext2_filsys fs,
678 errcode_t (*func)(ext2_filsys fs, int flags, blk64_t goal,
679 blk64_t len, blk64_t *pblk, blk64_t *plen),
680 errcode_t (**old)(ext2_filsys fs, int flags, blk64_t goal,
681 blk64_t len, blk64_t *pblk, blk64_t *plen));
682 extern void ext2fs_set_block_alloc_stats_range_callback(ext2_filsys fs,
683 void (*func)(ext2_filsys fs, blk64_t blk,
684 blk_t num, int inuse),
685 void (**old)(ext2_filsys fs, blk64_t blk,
686 blk_t num, int inuse));
687 #define EXT2_NEWRANGE_FIXED_GOAL (0x1)
688 #define EXT2_NEWRANGE_MIN_LENGTH (0x2)
689 #define EXT2_NEWRANGE_ALL_FLAGS (0x3)
690 errcode_t ext2fs_new_range(ext2_filsys fs, int flags, blk64_t goal,
691 blk64_t len, ext2fs_block_bitmap map, blk64_t *pblk,
693 #define EXT2_ALLOCRANGE_FIXED_GOAL (0x1)
694 #define EXT2_ALLOCRANGE_ZERO_BLOCKS (0x2)
695 #define EXT2_ALLOCRANGE_ALL_FLAGS (0x3)
696 errcode_t ext2fs_alloc_range(ext2_filsys fs, int flags, blk64_t goal,
697 blk_t len, blk64_t *ret);
700 extern int ext2fs_reserve_super_and_bgd(ext2_filsys fs,
702 ext2fs_block_bitmap bmap);
703 extern void ext2fs_set_block_alloc_stats_callback(ext2_filsys fs,
704 void (*func)(ext2_filsys fs,
707 void (**old)(ext2_filsys fs,
712 void ext2fs_inode_alloc_stats(ext2_filsys fs, ext2_ino_t ino, int inuse);
713 void ext2fs_inode_alloc_stats2(ext2_filsys fs, ext2_ino_t ino,
714 int inuse, int isdir);
715 void ext2fs_block_alloc_stats(ext2_filsys fs, blk_t blk, int inuse);
716 void ext2fs_block_alloc_stats2(ext2_filsys fs, blk64_t blk, int inuse);
717 void ext2fs_block_alloc_stats_range(ext2_filsys fs, blk64_t blk,
718 blk_t num, int inuse);
721 extern errcode_t ext2fs_allocate_tables(ext2_filsys fs);
722 extern errcode_t ext2fs_allocate_group_table(ext2_filsys fs, dgrp_t group,
723 ext2fs_block_bitmap bmap);
726 extern errcode_t ext2fs_u32_list_create(ext2_u32_list *ret, int size);
727 extern errcode_t ext2fs_u32_list_add(ext2_u32_list bb, __u32 blk);
728 extern int ext2fs_u32_list_find(ext2_u32_list bb, __u32 blk);
729 extern int ext2fs_u32_list_test(ext2_u32_list bb, blk_t blk);
730 extern errcode_t ext2fs_u32_list_iterate_begin(ext2_u32_list bb,
731 ext2_u32_iterate *ret);
732 extern int ext2fs_u32_list_iterate(ext2_u32_iterate iter, blk_t *blk);
733 extern void ext2fs_u32_list_iterate_end(ext2_u32_iterate iter);
734 extern errcode_t ext2fs_u32_copy(ext2_u32_list src, ext2_u32_list *dest);
735 extern int ext2fs_u32_list_equal(ext2_u32_list bb1, ext2_u32_list bb2);
737 extern errcode_t ext2fs_badblocks_list_create(ext2_badblocks_list *ret,
739 extern errcode_t ext2fs_badblocks_list_add(ext2_badblocks_list bb,
741 extern int ext2fs_badblocks_list_test(ext2_badblocks_list bb,
743 extern int ext2fs_u32_list_del(ext2_u32_list bb, __u32 blk);
744 extern void ext2fs_badblocks_list_del(ext2_u32_list bb, __u32 blk);
746 ext2fs_badblocks_list_iterate_begin(ext2_badblocks_list bb,
747 ext2_badblocks_iterate *ret);
748 extern int ext2fs_badblocks_list_iterate(ext2_badblocks_iterate iter,
750 extern void ext2fs_badblocks_list_iterate_end(ext2_badblocks_iterate iter);
751 extern errcode_t ext2fs_badblocks_copy(ext2_badblocks_list src,
752 ext2_badblocks_list *dest);
753 extern int ext2fs_badblocks_equal(ext2_badblocks_list bb1,
754 ext2_badblocks_list bb2);
755 extern int ext2fs_u32_list_count(ext2_u32_list bb);
758 extern errcode_t badblocks_list_create(badblocks_list *ret, int size);
759 extern errcode_t badblocks_list_add(badblocks_list bb, blk_t blk);
760 extern int badblocks_list_test(badblocks_list bb, blk_t blk);
761 extern errcode_t badblocks_list_iterate_begin(badblocks_list bb,
762 badblocks_iterate *ret);
763 extern int badblocks_list_iterate(badblocks_iterate iter, blk_t *blk);
764 extern void badblocks_list_iterate_end(badblocks_iterate iter);
765 extern void badblocks_list_free(badblocks_list bb);
768 extern errcode_t ext2fs_update_bb_inode(ext2_filsys fs,
769 ext2_badblocks_list bb_list);
772 extern void ext2fs_free_block_bitmap(ext2fs_block_bitmap bitmap);
773 extern void ext2fs_free_inode_bitmap(ext2fs_inode_bitmap bitmap);
774 extern errcode_t ext2fs_copy_bitmap(ext2fs_generic_bitmap src,
775 ext2fs_generic_bitmap *dest);
776 extern errcode_t ext2fs_write_inode_bitmap(ext2_filsys fs);
777 extern errcode_t ext2fs_write_block_bitmap (ext2_filsys fs);
778 extern errcode_t ext2fs_read_inode_bitmap (ext2_filsys fs);
779 extern errcode_t ext2fs_read_block_bitmap(ext2_filsys fs);
780 extern errcode_t ext2fs_allocate_block_bitmap(ext2_filsys fs,
782 ext2fs_block_bitmap *ret);
783 extern errcode_t ext2fs_allocate_subcluster_bitmap(ext2_filsys fs,
785 ext2fs_block_bitmap *ret);
786 extern int ext2fs_get_bitmap_granularity(ext2fs_block_bitmap bitmap);
787 extern errcode_t ext2fs_allocate_inode_bitmap(ext2_filsys fs,
789 ext2fs_inode_bitmap *ret);
790 extern errcode_t ext2fs_fudge_inode_bitmap_end(ext2fs_inode_bitmap bitmap,
791 ext2_ino_t end, ext2_ino_t *oend);
792 extern errcode_t ext2fs_fudge_block_bitmap_end(ext2fs_block_bitmap bitmap,
793 blk_t end, blk_t *oend);
794 extern errcode_t ext2fs_fudge_block_bitmap_end2(ext2fs_block_bitmap bitmap,
795 blk64_t end, blk64_t *oend);
796 extern void ext2fs_clear_inode_bitmap(ext2fs_inode_bitmap bitmap);
797 extern void ext2fs_clear_block_bitmap(ext2fs_block_bitmap bitmap);
798 extern errcode_t ext2fs_read_bitmaps(ext2_filsys fs);
799 extern errcode_t ext2fs_write_bitmaps(ext2_filsys fs);
800 extern errcode_t ext2fs_resize_inode_bitmap(__u32 new_end, __u32 new_real_end,
801 ext2fs_inode_bitmap bmap);
802 extern errcode_t ext2fs_resize_inode_bitmap2(__u64 new_end,
804 ext2fs_inode_bitmap bmap);
805 extern errcode_t ext2fs_resize_block_bitmap(__u32 new_end, __u32 new_real_end,
806 ext2fs_block_bitmap bmap);
807 extern errcode_t ext2fs_resize_block_bitmap2(__u64 new_end,
809 ext2fs_block_bitmap bmap);
810 extern errcode_t ext2fs_compare_block_bitmap(ext2fs_block_bitmap bm1,
811 ext2fs_block_bitmap bm2);
812 extern errcode_t ext2fs_compare_inode_bitmap(ext2fs_inode_bitmap bm1,
813 ext2fs_inode_bitmap bm2);
814 extern errcode_t ext2fs_set_inode_bitmap_range(ext2fs_inode_bitmap bmap,
815 ext2_ino_t start, unsigned int num,
817 extern errcode_t ext2fs_set_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
818 __u64 start, size_t num,
820 extern errcode_t ext2fs_get_inode_bitmap_range(ext2fs_inode_bitmap bmap,
821 ext2_ino_t start, unsigned int num,
823 extern errcode_t ext2fs_get_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
824 __u64 start, size_t num,
826 extern errcode_t ext2fs_set_block_bitmap_range(ext2fs_block_bitmap bmap,
827 blk_t start, unsigned int num,
829 extern errcode_t ext2fs_set_block_bitmap_range2(ext2fs_block_bitmap bmap,
830 blk64_t start, size_t num,
832 extern errcode_t ext2fs_get_block_bitmap_range(ext2fs_block_bitmap bmap,
833 blk_t start, unsigned int num,
835 extern errcode_t ext2fs_get_block_bitmap_range2(ext2fs_block_bitmap bmap,
836 blk64_t start, size_t num,
840 extern __u32 ext2fs_inode_bitmap_checksum(ext2_filsys fs, dgrp_t group);
841 extern __u32 ext2fs_block_bitmap_checksum(ext2_filsys fs, dgrp_t group);
842 extern dgrp_t ext2fs_group_of_blk2(ext2_filsys fs, blk64_t);
843 extern blk64_t ext2fs_group_first_block2(ext2_filsys fs, dgrp_t group);
844 extern blk64_t ext2fs_group_last_block2(ext2_filsys fs, dgrp_t group);
845 extern int ext2fs_group_blocks_count(ext2_filsys fs, dgrp_t group);
846 extern blk64_t ext2fs_inode_data_blocks2(ext2_filsys fs,
847 struct ext2_inode *inode);
848 extern blk64_t ext2fs_inode_i_blocks(ext2_filsys fs,
849 struct ext2_inode *inode);
850 extern blk64_t ext2fs_blocks_count(struct ext2_super_block *super);
851 extern void ext2fs_blocks_count_set(struct ext2_super_block *super,
853 extern void ext2fs_blocks_count_add(struct ext2_super_block *super,
855 extern blk64_t ext2fs_r_blocks_count(struct ext2_super_block *super);
856 extern void ext2fs_r_blocks_count_set(struct ext2_super_block *super,
858 extern void ext2fs_r_blocks_count_add(struct ext2_super_block *super,
860 extern blk64_t ext2fs_free_blocks_count(struct ext2_super_block *super);
861 extern void ext2fs_free_blocks_count_set(struct ext2_super_block *super,
863 extern void ext2fs_free_blocks_count_add(struct ext2_super_block *super,
865 /* Block group descriptor accessor functions */
866 extern struct ext2_group_desc *ext2fs_group_desc(ext2_filsys fs,
867 struct opaque_ext2_group_desc *gdp,
869 extern blk64_t ext2fs_block_bitmap_csum(ext2_filsys fs, dgrp_t group);
870 extern blk64_t ext2fs_block_bitmap_loc(ext2_filsys fs, dgrp_t group);
871 extern void ext2fs_block_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
873 extern __u32 ext2fs_inode_bitmap_csum(ext2_filsys fs, dgrp_t group);
874 extern blk64_t ext2fs_inode_bitmap_loc(ext2_filsys fs, dgrp_t group);
875 extern void ext2fs_inode_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
877 extern blk64_t ext2fs_inode_table_loc(ext2_filsys fs, dgrp_t group);
878 extern void ext2fs_inode_table_loc_set(ext2_filsys fs, dgrp_t group,
880 extern __u32 ext2fs_bg_free_blocks_count(ext2_filsys fs, dgrp_t group);
881 extern void ext2fs_bg_free_blocks_count_set(ext2_filsys fs, dgrp_t group,
883 extern __u32 ext2fs_bg_free_inodes_count(ext2_filsys fs, dgrp_t group);
884 extern void ext2fs_bg_free_inodes_count_set(ext2_filsys fs, dgrp_t group,
886 extern __u32 ext2fs_bg_used_dirs_count(ext2_filsys fs, dgrp_t group);
887 extern void ext2fs_bg_used_dirs_count_set(ext2_filsys fs, dgrp_t group,
889 extern __u32 ext2fs_bg_itable_unused(ext2_filsys fs, dgrp_t group);
890 extern void ext2fs_bg_itable_unused_set(ext2_filsys fs, dgrp_t group,
892 extern __u16 ext2fs_bg_flags(ext2_filsys fs, dgrp_t group);
893 extern void ext2fs_bg_flags_zap(ext2_filsys fs, dgrp_t group);
894 extern int ext2fs_bg_flags_test(ext2_filsys fs, dgrp_t group, __u16 bg_flag);
895 extern void ext2fs_bg_flags_set(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
896 extern void ext2fs_bg_flags_clear(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
897 extern __u16 ext2fs_bg_checksum(ext2_filsys fs, dgrp_t group);
898 extern void ext2fs_bg_checksum_set(ext2_filsys fs, dgrp_t group, __u16 checksum);
899 extern blk64_t ext2fs_file_acl_block(ext2_filsys fs,
900 const struct ext2_inode *inode);
901 extern void ext2fs_file_acl_block_set(ext2_filsys fs,
902 struct ext2_inode *inode, blk64_t blk);
903 extern errcode_t ext2fs_inode_size_set(ext2_filsys fs, struct ext2_inode *inode,
907 extern errcode_t ext2fs_block_iterate(ext2_filsys fs,
911 int (*func)(ext2_filsys fs,
916 errcode_t ext2fs_block_iterate2(ext2_filsys fs,
920 int (*func)(ext2_filsys fs,
922 e2_blkcnt_t blockcnt,
927 errcode_t ext2fs_block_iterate3(ext2_filsys fs,
931 int (*func)(ext2_filsys fs,
933 e2_blkcnt_t blockcnt,
940 extern errcode_t ext2fs_bmap(ext2_filsys fs, ext2_ino_t ino,
941 struct ext2_inode *inode,
942 char *block_buf, int bmap_flags,
943 blk_t block, blk_t *phys_blk);
944 extern errcode_t ext2fs_bmap2(ext2_filsys fs, ext2_ino_t ino,
945 struct ext2_inode *inode,
946 char *block_buf, int bmap_flags, blk64_t block,
947 int *ret_flags, blk64_t *phys_blk);
948 errcode_t ext2fs_map_cluster_block(ext2_filsys fs, ext2_ino_t ino,
949 struct ext2_inode *inode, blk64_t lblk,
954 extern errcode_t ext2fs_move_blocks(ext2_filsys fs,
955 ext2fs_block_bitmap reserve,
956 ext2fs_block_bitmap alloc_map,
961 extern errcode_t ext2fs_check_desc(ext2_filsys fs);
964 extern errcode_t ext2fs_close(ext2_filsys fs);
965 extern errcode_t ext2fs_close2(ext2_filsys fs, int flags);
966 extern errcode_t ext2fs_close_free(ext2_filsys *fs);
967 extern errcode_t ext2fs_flush(ext2_filsys fs);
968 extern errcode_t ext2fs_flush2(ext2_filsys fs, int flags);
969 extern int ext2fs_bg_has_super(ext2_filsys fs, dgrp_t group_block);
970 extern errcode_t ext2fs_super_and_bgd_loc2(ext2_filsys fs,
972 blk64_t *ret_super_blk,
973 blk64_t *ret_old_desc_blk,
974 blk64_t *ret_new_desc_blk,
975 blk_t *ret_used_blks);
976 extern int ext2fs_super_and_bgd_loc(ext2_filsys fs,
978 blk_t *ret_super_blk,
979 blk_t *ret_old_desc_blk,
980 blk_t *ret_new_desc_blk,
982 extern void ext2fs_update_dynamic_rev(ext2_filsys fs);
985 extern __u32 ext2fs_crc32_be(__u32 crc, unsigned char const *p, size_t len);
986 extern __u32 ext2fs_crc32c_le(__u32 crc, unsigned char const *p, size_t len);
989 extern errcode_t ext2fs_mmp_csum_set(ext2_filsys fs, struct mmp_struct *mmp);
990 extern int ext2fs_mmp_csum_verify(ext2_filsys, struct mmp_struct *mmp);
991 extern int ext2fs_verify_csum_type(ext2_filsys fs, struct ext2_super_block *sb);
992 extern errcode_t ext2fs_superblock_csum_set(ext2_filsys fs,
993 struct ext2_super_block *sb);
994 extern int ext2fs_superblock_csum_verify(ext2_filsys fs,
995 struct ext2_super_block *sb);
996 extern errcode_t ext2fs_ext_attr_block_csum_set(ext2_filsys fs,
997 ext2_ino_t inum, blk64_t block,
998 struct ext2_ext_attr_header *hdr);
999 extern int ext2fs_ext_attr_block_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1001 struct ext2_ext_attr_header *hdr);
1002 #define EXT2_DIRENT_TAIL(block, blocksize) \
1003 ((struct ext2_dir_entry_tail *)(((char *)(block)) + \
1004 (blocksize) - sizeof(struct ext2_dir_entry_tail)))
1006 extern void ext2fs_initialize_dirent_tail(ext2_filsys fs,
1007 struct ext2_dir_entry_tail *t);
1008 extern int ext2fs_dirent_has_tail(ext2_filsys fs,
1009 struct ext2_dir_entry *dirent);
1010 extern int ext2fs_dirent_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1011 struct ext2_dir_entry *dirent);
1012 extern int ext2fs_dir_block_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1013 struct ext2_dir_entry *dirent);
1014 extern errcode_t ext2fs_dir_block_csum_set(ext2_filsys fs, ext2_ino_t inum,
1015 struct ext2_dir_entry *dirent);
1016 extern errcode_t ext2fs_get_dx_countlimit(ext2_filsys fs,
1017 struct ext2_dir_entry *dirent,
1018 struct ext2_dx_countlimit **cc,
1020 extern errcode_t ext2fs_extent_block_csum_set(ext2_filsys fs,
1022 struct ext3_extent_header *eh);
1023 extern int ext2fs_extent_block_csum_verify(ext2_filsys fs,
1025 struct ext3_extent_header *eh);
1026 extern errcode_t ext2fs_block_bitmap_csum_set(ext2_filsys fs, dgrp_t group,
1027 char *bitmap, int size);
1028 extern int ext2fs_block_bitmap_csum_verify(ext2_filsys fs, dgrp_t group,
1029 char *bitmap, int size);
1030 extern errcode_t ext2fs_inode_bitmap_csum_set(ext2_filsys fs, dgrp_t group,
1031 char *bitmap, int size);
1032 extern int ext2fs_inode_bitmap_csum_verify(ext2_filsys fs, dgrp_t group,
1033 char *bitmap, int size);
1034 extern errcode_t ext2fs_inode_csum_set(ext2_filsys fs, ext2_ino_t inum,
1035 struct ext2_inode_large *inode);
1036 extern int ext2fs_inode_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1037 struct ext2_inode_large *inode);
1038 extern void ext2fs_group_desc_csum_set(ext2_filsys fs, dgrp_t group);
1039 extern int ext2fs_group_desc_csum_verify(ext2_filsys fs, dgrp_t group);
1040 extern errcode_t ext2fs_set_gdt_csum(ext2_filsys fs);
1041 extern __u16 ext2fs_group_desc_csum(ext2_filsys fs, dgrp_t group);
1044 extern errcode_t ext2fs_init_dblist(ext2_filsys fs, ext2_dblist *ret_dblist);
1045 extern errcode_t ext2fs_add_dir_block(ext2_dblist dblist, ext2_ino_t ino,
1046 blk_t blk, int blockcnt);
1047 extern errcode_t ext2fs_add_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
1048 blk64_t blk, e2_blkcnt_t blockcnt);
1049 extern void ext2fs_dblist_sort(ext2_dblist dblist,
1050 EXT2_QSORT_TYPE (*sortfunc)(const void *,
1052 extern void ext2fs_dblist_sort2(ext2_dblist dblist,
1053 EXT2_QSORT_TYPE (*sortfunc)(const void *,
1055 extern errcode_t ext2fs_dblist_iterate(ext2_dblist dblist,
1056 int (*func)(ext2_filsys fs, struct ext2_db_entry *db_info,
1059 extern errcode_t ext2fs_dblist_iterate2(ext2_dblist dblist,
1060 int (*func)(ext2_filsys fs, struct ext2_db_entry2 *db_info,
1063 extern errcode_t ext2fs_dblist_iterate3(ext2_dblist dblist,
1064 int (*func)(ext2_filsys fs, struct ext2_db_entry2 *db_info,
1066 unsigned long long start,
1067 unsigned long long count,
1069 extern errcode_t ext2fs_set_dir_block(ext2_dblist dblist, ext2_ino_t ino,
1070 blk_t blk, int blockcnt);
1071 extern errcode_t ext2fs_set_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
1072 blk64_t blk, e2_blkcnt_t blockcnt);
1073 extern errcode_t ext2fs_copy_dblist(ext2_dblist src,
1075 extern int ext2fs_dblist_count(ext2_dblist dblist);
1076 extern blk64_t ext2fs_dblist_count2(ext2_dblist dblist);
1077 extern errcode_t ext2fs_dblist_get_last(ext2_dblist dblist,
1078 struct ext2_db_entry **entry);
1079 extern errcode_t ext2fs_dblist_get_last2(ext2_dblist dblist,
1080 struct ext2_db_entry2 **entry);
1081 extern errcode_t ext2fs_dblist_drop_last(ext2_dblist dblist);
1085 ext2fs_dblist_dir_iterate(ext2_dblist dblist,
1088 int (*func)(ext2_ino_t dir,
1090 struct ext2_dir_entry *dirent,
1098 /* digest_encode.c */
1099 #define EXT2FS_DIGEST_SIZE EXT2FS_SHA256_LENGTH
1100 extern int ext2fs_digest_encode(const char *src, int len, char *dst);
1101 extern int ext2fs_digest_decode(const char *src, int len, char *dst);
1105 extern errcode_t ext2fs_read_dir_block(ext2_filsys fs, blk_t block,
1107 extern errcode_t ext2fs_read_dir_block2(ext2_filsys fs, blk_t block,
1108 void *buf, int flags);
1109 extern errcode_t ext2fs_read_dir_block3(ext2_filsys fs, blk64_t block,
1110 void *buf, int flags);
1111 extern errcode_t ext2fs_read_dir_block4(ext2_filsys fs, blk64_t block,
1112 void *buf, int flags, ext2_ino_t ino);
1113 extern errcode_t ext2fs_write_dir_block(ext2_filsys fs, blk_t block,
1115 extern errcode_t ext2fs_write_dir_block2(ext2_filsys fs, blk_t block,
1116 void *buf, int flags);
1117 extern errcode_t ext2fs_write_dir_block3(ext2_filsys fs, blk64_t block,
1118 void *buf, int flags);
1119 extern errcode_t ext2fs_write_dir_block4(ext2_filsys fs, blk64_t block,
1120 void *buf, int flags, ext2_ino_t ino);
1123 extern errcode_t ext2fs_dirhash(int version, const char *name, int len,
1125 ext2_dirhash_t *ret_hash,
1126 ext2_dirhash_t *ret_minor_hash);
1130 extern errcode_t ext2fs_get_rec_len(ext2_filsys fs,
1131 struct ext2_dir_entry *dirent,
1132 unsigned int *rec_len);
1133 extern errcode_t ext2fs_set_rec_len(ext2_filsys fs,
1135 struct ext2_dir_entry *dirent);
1136 extern errcode_t ext2fs_dir_iterate(ext2_filsys fs,
1140 int (*func)(struct ext2_dir_entry *dirent,
1146 extern errcode_t ext2fs_dir_iterate2(ext2_filsys fs,
1150 int (*func)(ext2_ino_t dir,
1152 struct ext2_dir_entry *dirent,
1160 extern errcode_t ext2fs_dup_handle(ext2_filsys src, ext2_filsys *dest);
1163 extern errcode_t ext2fs_expand_dir(ext2_filsys fs, ext2_ino_t dir);
1166 extern __u32 ext2fs_ext_attr_hash_entry(struct ext2_ext_attr_entry *entry,
1168 extern errcode_t ext2fs_read_ext_attr(ext2_filsys fs, blk_t block, void *buf);
1169 extern errcode_t ext2fs_read_ext_attr2(ext2_filsys fs, blk64_t block,
1171 extern errcode_t ext2fs_read_ext_attr3(ext2_filsys fs, blk64_t block,
1172 void *buf, ext2_ino_t inum);
1173 extern errcode_t ext2fs_write_ext_attr(ext2_filsys fs, blk_t block,
1175 extern errcode_t ext2fs_write_ext_attr2(ext2_filsys fs, blk64_t block,
1177 extern errcode_t ext2fs_write_ext_attr3(ext2_filsys fs, blk64_t block,
1178 void *buf, ext2_ino_t inum);
1179 extern errcode_t ext2fs_adjust_ea_refcount(ext2_filsys fs, blk_t blk,
1181 int adjust, __u32 *newcount);
1182 extern errcode_t ext2fs_adjust_ea_refcount2(ext2_filsys fs, blk64_t blk,
1184 int adjust, __u32 *newcount);
1185 extern errcode_t ext2fs_adjust_ea_refcount3(ext2_filsys fs, blk64_t blk,
1187 int adjust, __u32 *newcount,
1189 errcode_t ext2fs_xattrs_write(struct ext2_xattr_handle *handle);
1190 errcode_t ext2fs_xattrs_read(struct ext2_xattr_handle *handle);
1191 errcode_t ext2fs_xattrs_iterate(struct ext2_xattr_handle *h,
1192 int (*func)(char *name, char *value,
1193 size_t value_len, void *data),
1195 errcode_t ext2fs_xattr_get(struct ext2_xattr_handle *h, const char *key,
1196 void **value, size_t *value_len);
1197 errcode_t ext2fs_xattr_set(struct ext2_xattr_handle *handle,
1201 errcode_t ext2fs_xattr_remove(struct ext2_xattr_handle *handle,
1203 errcode_t ext2fs_xattrs_open(ext2_filsys fs, ext2_ino_t ino,
1204 struct ext2_xattr_handle **handle);
1205 errcode_t ext2fs_xattrs_close(struct ext2_xattr_handle **handle);
1206 errcode_t ext2fs_free_ext_attr(ext2_filsys fs, ext2_ino_t ino,
1207 struct ext2_inode_large *inode);
1208 errcode_t ext2fs_xattrs_count(struct ext2_xattr_handle *handle, size_t *count);
1209 errcode_t ext2fs_xattr_inode_max_size(ext2_filsys fs, ext2_ino_t ino,
1213 extern errcode_t ext2fs_extent_header_verify(void *ptr, int size);
1214 extern errcode_t ext2fs_extent_open(ext2_filsys fs, ext2_ino_t ino,
1215 ext2_extent_handle_t *handle);
1216 extern errcode_t ext2fs_extent_open2(ext2_filsys fs, ext2_ino_t ino,
1217 struct ext2_inode *inode,
1218 ext2_extent_handle_t *ret_handle);
1219 extern void ext2fs_extent_free(ext2_extent_handle_t handle);
1220 extern errcode_t ext2fs_extent_get(ext2_extent_handle_t handle,
1221 int flags, struct ext2fs_extent *extent);
1222 extern errcode_t ext2fs_extent_node_split(ext2_extent_handle_t handle);
1223 extern errcode_t ext2fs_extent_replace(ext2_extent_handle_t handle, int flags,
1224 struct ext2fs_extent *extent);
1225 extern errcode_t ext2fs_extent_insert(ext2_extent_handle_t handle, int flags,
1226 struct ext2fs_extent *extent);
1227 extern errcode_t ext2fs_extent_set_bmap(ext2_extent_handle_t handle,
1228 blk64_t logical, blk64_t physical,
1230 extern errcode_t ext2fs_extent_delete(ext2_extent_handle_t handle, int flags);
1231 extern errcode_t ext2fs_extent_get_info(ext2_extent_handle_t handle,
1232 struct ext2_extent_info *info);
1233 extern errcode_t ext2fs_extent_goto(ext2_extent_handle_t handle,
1235 extern errcode_t ext2fs_extent_goto2(ext2_extent_handle_t handle,
1236 int leaf_level, blk64_t blk);
1237 extern errcode_t ext2fs_extent_fix_parents(ext2_extent_handle_t handle);
1238 size_t ext2fs_max_extent_depth(ext2_extent_handle_t handle);
1241 #define EXT2_FALLOCATE_ZERO_BLOCKS (0x1)
1242 #define EXT2_FALLOCATE_FORCE_INIT (0x2)
1243 #define EXT2_FALLOCATE_FORCE_UNINIT (0x4)
1244 #define EXT2_FALLOCATE_INIT_BEYOND_EOF (0x8)
1245 #define EXT2_FALLOCATE_ALL_FLAGS (0xF)
1246 errcode_t ext2fs_fallocate(ext2_filsys fs, int flags, ext2_ino_t ino,
1247 struct ext2_inode *inode, blk64_t goal,
1248 blk64_t start, blk64_t len);
1251 extern errcode_t ext2fs_file_open2(ext2_filsys fs, ext2_ino_t ino,
1252 struct ext2_inode *inode,
1253 int flags, ext2_file_t *ret);
1254 extern errcode_t ext2fs_file_open(ext2_filsys fs, ext2_ino_t ino,
1255 int flags, ext2_file_t *ret);
1256 extern ext2_filsys ext2fs_file_get_fs(ext2_file_t file);
1257 struct ext2_inode *ext2fs_file_get_inode(ext2_file_t file);
1258 extern ext2_ino_t ext2fs_file_get_inode_num(ext2_file_t file);
1259 extern errcode_t ext2fs_file_close(ext2_file_t file);
1260 extern errcode_t ext2fs_file_flush(ext2_file_t file);
1261 extern errcode_t ext2fs_file_read(ext2_file_t file, void *buf,
1262 unsigned int wanted, unsigned int *got);
1263 extern errcode_t ext2fs_file_write(ext2_file_t file, const void *buf,
1264 unsigned int nbytes, unsigned int *written);
1265 extern errcode_t ext2fs_file_llseek(ext2_file_t file, __u64 offset,
1266 int whence, __u64 *ret_pos);
1267 extern errcode_t ext2fs_file_lseek(ext2_file_t file, ext2_off_t offset,
1268 int whence, ext2_off_t *ret_pos);
1269 errcode_t ext2fs_file_get_lsize(ext2_file_t file, __u64 *ret_size);
1270 extern ext2_off_t ext2fs_file_get_size(ext2_file_t file);
1271 extern errcode_t ext2fs_file_set_size(ext2_file_t file, ext2_off_t size);
1272 extern errcode_t ext2fs_file_set_size2(ext2_file_t file, ext2_off64_t size);
1275 extern char *ext2fs_find_block_device(dev_t device);
1278 extern errcode_t ext2fs_sync_device(int fd, int flushb);
1281 extern void ext2fs_free(ext2_filsys fs);
1282 extern void ext2fs_free_dblist(ext2_dblist dblist);
1283 extern void ext2fs_badblocks_list_free(ext2_badblocks_list bb);
1284 extern void ext2fs_u32_list_free(ext2_u32_list bb);
1287 extern void ext2fs_free_generic_bitmap(ext2fs_inode_bitmap bitmap);
1288 extern errcode_t ext2fs_make_generic_bitmap(errcode_t magic, ext2_filsys fs,
1289 __u32 start, __u32 end,
1291 const char *descr, char *init_map,
1292 ext2fs_generic_bitmap *ret);
1293 extern errcode_t ext2fs_allocate_generic_bitmap(__u32 start,
1297 ext2fs_generic_bitmap *ret);
1298 extern errcode_t ext2fs_copy_generic_bitmap(ext2fs_generic_bitmap src,
1299 ext2fs_generic_bitmap *dest);
1300 extern void ext2fs_clear_generic_bitmap(ext2fs_generic_bitmap bitmap);
1301 extern errcode_t ext2fs_fudge_generic_bitmap_end(ext2fs_inode_bitmap bitmap,
1306 extern void ext2fs_set_generic_bitmap_padding(ext2fs_generic_bitmap map);
1307 extern errcode_t ext2fs_resize_generic_bitmap(errcode_t magic,
1310 ext2fs_generic_bitmap bmap);
1311 extern errcode_t ext2fs_compare_generic_bitmap(errcode_t magic, errcode_t neq,
1312 ext2fs_generic_bitmap bm1,
1313 ext2fs_generic_bitmap bm2);
1314 extern errcode_t ext2fs_get_generic_bitmap_range(ext2fs_generic_bitmap bmap,
1316 __u32 start, __u32 num,
1318 extern errcode_t ext2fs_set_generic_bitmap_range(ext2fs_generic_bitmap bmap,
1320 __u32 start, __u32 num,
1322 extern errcode_t ext2fs_find_first_zero_generic_bitmap(ext2fs_generic_bitmap bitmap,
1323 __u32 start, __u32 end,
1325 extern errcode_t ext2fs_find_first_set_generic_bitmap(ext2fs_generic_bitmap bitmap,
1326 __u32 start, __u32 end,
1329 /* gen_bitmap64.c */
1330 void ext2fs_free_generic_bmap(ext2fs_generic_bitmap bmap);
1331 errcode_t ext2fs_alloc_generic_bmap(ext2_filsys fs, errcode_t magic,
1332 int type, __u64 start, __u64 end,
1335 ext2fs_generic_bitmap *ret);
1336 errcode_t ext2fs_copy_generic_bmap(ext2fs_generic_bitmap src,
1337 ext2fs_generic_bitmap *dest);
1338 void ext2fs_clear_generic_bmap(ext2fs_generic_bitmap bitmap);
1339 errcode_t ext2fs_fudge_generic_bmap_end(ext2fs_generic_bitmap bitmap,
1341 __u64 end, __u64 *oend);
1342 void ext2fs_set_generic_bmap_padding(ext2fs_generic_bitmap bmap);
1343 errcode_t ext2fs_resize_generic_bmap(ext2fs_generic_bitmap bmap,
1345 __u64 new_real_end);
1346 errcode_t ext2fs_compare_generic_bmap(errcode_t neq,
1347 ext2fs_generic_bitmap bm1,
1348 ext2fs_generic_bitmap bm2);
1349 errcode_t ext2fs_get_generic_bmap_range(ext2fs_generic_bitmap bmap,
1350 __u64 start, unsigned int num,
1352 errcode_t ext2fs_set_generic_bmap_range(ext2fs_generic_bitmap bmap,
1353 __u64 start, unsigned int num,
1355 errcode_t ext2fs_convert_subcluster_bitmap(ext2_filsys fs,
1356 ext2fs_block_bitmap *bitmap);
1358 /* get_num_dirs.c */
1359 extern errcode_t ext2fs_get_num_dirs(ext2_filsys fs, ext2_ino_t *ret_num_dirs);
1362 extern errcode_t ext2fs_get_device_size(const char *file, int blocksize,
1364 extern errcode_t ext2fs_get_device_size2(const char *file, int blocksize,
1365 blk64_t *retblocks);
1368 extern int ext2fs_get_dio_alignment(int fd);
1369 errcode_t ext2fs_get_device_sectsize(const char *file, int *sectsize);
1370 errcode_t ext2fs_get_device_phys_sectsize(const char *file, int *sectsize);
1373 errcode_t ext2fs_iblk_add_blocks(ext2_filsys fs, struct ext2_inode *inode,
1374 blk64_t num_blocks);
1375 errcode_t ext2fs_iblk_sub_blocks(ext2_filsys fs, struct ext2_inode *inode,
1376 blk64_t num_blocks);
1377 errcode_t ext2fs_iblk_set(ext2_filsys fs, struct ext2_inode *inode, blk64_t b);
1380 extern errcode_t ext2fs_image_inode_write(ext2_filsys fs, int fd, int flags);
1381 extern errcode_t ext2fs_image_inode_read(ext2_filsys fs, int fd, int flags);
1382 extern errcode_t ext2fs_image_super_write(ext2_filsys fs, int fd, int flags);
1383 extern errcode_t ext2fs_image_super_read(ext2_filsys fs, int fd, int flags);
1384 extern errcode_t ext2fs_image_bitmap_write(ext2_filsys fs, int fd, int flags);
1385 extern errcode_t ext2fs_image_bitmap_read(ext2_filsys fs, int fd, int flags);
1388 errcode_t ext2fs_read_ind_block(ext2_filsys fs, blk_t blk, void *buf);
1389 errcode_t ext2fs_write_ind_block(ext2_filsys fs, blk_t blk, void *buf);
1392 extern errcode_t ext2fs_initialize(const char *name, int flags,
1393 struct ext2_super_block *param,
1394 io_manager manager, ext2_filsys *ret_fs);
1397 extern void ext2fs_free_icount(ext2_icount_t icount);
1398 extern errcode_t ext2fs_create_icount_tdb(ext2_filsys fs, char *tdb_dir,
1399 int flags, ext2_icount_t *ret);
1400 extern errcode_t ext2fs_create_icount2(ext2_filsys fs, int flags,
1402 ext2_icount_t hint, ext2_icount_t *ret);
1403 extern errcode_t ext2fs_create_icount(ext2_filsys fs, int flags,
1405 ext2_icount_t *ret);
1406 extern errcode_t ext2fs_icount_fetch(ext2_icount_t icount, ext2_ino_t ino,
1408 extern errcode_t ext2fs_icount_increment(ext2_icount_t icount, ext2_ino_t ino,
1410 extern errcode_t ext2fs_icount_decrement(ext2_icount_t icount, ext2_ino_t ino,
1412 extern errcode_t ext2fs_icount_store(ext2_icount_t icount, ext2_ino_t ino,
1414 extern ext2_ino_t ext2fs_get_icount_size(ext2_icount_t icount);
1415 errcode_t ext2fs_icount_validate(ext2_icount_t icount, FILE *);
1419 extern errcode_t ext2fs_get_memalign(unsigned long size,
1420 unsigned long align, void *ptr);
1423 extern errcode_t ext2fs_inline_data_init(ext2_filsys fs, ext2_ino_t ino);
1424 extern errcode_t ext2fs_inline_data_size(ext2_filsys fs, ext2_ino_t ino,
1426 extern errcode_t ext2fs_inline_data_get(ext2_filsys fs, ext2_ino_t ino,
1427 struct ext2_inode *inode,
1428 void *buf, size_t *size);
1429 extern errcode_t ext2fs_inline_data_set(ext2_filsys fs, ext2_ino_t ino,
1430 struct ext2_inode *inode,
1431 void *buf, size_t size);
1434 extern errcode_t ext2fs_create_inode_cache(ext2_filsys fs,
1435 unsigned int cache_size);
1436 extern void ext2fs_free_inode_cache(struct ext2_inode_cache *icache);
1437 extern errcode_t ext2fs_flush_icache(ext2_filsys fs);
1438 extern errcode_t ext2fs_get_next_inode_full(ext2_inode_scan scan,
1440 struct ext2_inode *inode,
1442 #define EXT2_INODE_SCAN_DEFAULT_BUFFER_BLOCKS 8
1443 extern errcode_t ext2fs_open_inode_scan(ext2_filsys fs, int buffer_blocks,
1444 ext2_inode_scan *ret_scan);
1445 extern void ext2fs_close_inode_scan(ext2_inode_scan scan);
1446 extern errcode_t ext2fs_get_next_inode(ext2_inode_scan scan, ext2_ino_t *ino,
1447 struct ext2_inode *inode);
1448 extern errcode_t ext2fs_inode_scan_goto_blockgroup(ext2_inode_scan scan,
1450 extern void ext2fs_set_inode_callback
1451 (ext2_inode_scan scan,
1452 errcode_t (*done_group)(ext2_filsys fs,
1453 ext2_inode_scan scan,
1456 void *done_group_data);
1457 extern int ext2fs_inode_scan_flags(ext2_inode_scan scan, int set_flags,
1459 extern errcode_t ext2fs_read_inode_full(ext2_filsys fs, ext2_ino_t ino,
1460 struct ext2_inode * inode,
1462 extern errcode_t ext2fs_read_inode (ext2_filsys fs, ext2_ino_t ino,
1463 struct ext2_inode * inode);
1464 extern errcode_t ext2fs_write_inode_full(ext2_filsys fs, ext2_ino_t ino,
1465 struct ext2_inode * inode,
1467 extern errcode_t ext2fs_write_inode(ext2_filsys fs, ext2_ino_t ino,
1468 struct ext2_inode * inode);
1469 extern errcode_t ext2fs_write_new_inode(ext2_filsys fs, ext2_ino_t ino,
1470 struct ext2_inode * inode);
1471 extern errcode_t ext2fs_get_blocks(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
1472 extern errcode_t ext2fs_check_directory(ext2_filsys fs, ext2_ino_t ino);
1475 extern io_manager inode_io_manager;
1476 extern errcode_t ext2fs_inode_io_intern(ext2_filsys fs, ext2_ino_t ino,
1478 extern errcode_t ext2fs_inode_io_intern2(ext2_filsys fs, ext2_ino_t ino,
1479 struct ext2_inode *inode,
1483 extern errcode_t ext2fs_check_if_mounted(const char *file, int *mount_flags);
1484 extern errcode_t ext2fs_check_mount_point(const char *device, int *mount_flags,
1485 char *mtpt, int mtlen);
1489 * NOTE: This function removes from an inode the blocks "start", "end", and
1490 * every block in between.
1492 extern errcode_t ext2fs_punch(ext2_filsys fs, ext2_ino_t ino,
1493 struct ext2_inode *inode,
1494 char *block_buf, blk64_t start,
1498 extern errcode_t ext2fs_lookup(ext2_filsys fs, ext2_ino_t dir, const char *name,
1499 int namelen, char *buf, ext2_ino_t *inode);
1500 extern errcode_t ext2fs_namei(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1501 const char *name, ext2_ino_t *inode);
1502 errcode_t ext2fs_namei_follow(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1503 const char *name, ext2_ino_t *inode);
1504 extern errcode_t ext2fs_follow_link(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1505 ext2_ino_t inode, ext2_ino_t *res_inode);
1508 int ext2fs_native_flag(void);
1511 extern errcode_t ext2fs_new_dir_block(ext2_filsys fs, ext2_ino_t dir_ino,
1512 ext2_ino_t parent_ino, char **block);
1513 extern errcode_t ext2fs_new_dir_inline_data(ext2_filsys fs, ext2_ino_t dir_ino,
1514 ext2_ino_t parent_ino, __u32 *iblock);
1517 extern errcode_t ext2fs_mkdir(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t inum,
1521 extern errcode_t ext2fs_zero_blocks(ext2_filsys fs, blk_t blk, int num,
1522 blk_t *ret_blk, int *ret_count);
1523 extern errcode_t ext2fs_zero_blocks2(ext2_filsys fs, blk64_t blk, int num,
1524 blk64_t *ret_blk, int *ret_count);
1525 extern errcode_t ext2fs_create_journal_superblock(ext2_filsys fs,
1526 __u32 num_blocks, int flags,
1528 extern errcode_t ext2fs_add_journal_device(ext2_filsys fs,
1529 ext2_filsys journal_dev);
1530 extern errcode_t ext2fs_add_journal_inode(ext2_filsys fs, blk_t num_blocks,
1532 extern errcode_t ext2fs_add_journal_inode2(ext2_filsys fs, blk_t num_blocks,
1533 blk64_t goal, int flags);
1534 extern int ext2fs_default_journal_size(__u64 num_blocks);
1535 extern int ext2fs_journal_sb_start(int blocksize);
1538 extern errcode_t ext2fs_open(const char *name, int flags, int superblock,
1539 unsigned int block_size, io_manager manager,
1540 ext2_filsys *ret_fs);
1541 extern errcode_t ext2fs_open2(const char *name, const char *io_options,
1542 int flags, int superblock,
1543 unsigned int block_size, io_manager manager,
1544 ext2_filsys *ret_fs);
1546 * The dgrp_t argument to these two functions is not actually a group number
1547 * but a block number offset within a group table! Convert with the formula
1548 * (group_number / groups_per_block).
1550 extern blk64_t ext2fs_descriptor_block_loc2(ext2_filsys fs,
1551 blk64_t group_block, dgrp_t i);
1552 extern blk_t ext2fs_descriptor_block_loc(ext2_filsys fs, blk_t group_block,
1554 errcode_t ext2fs_get_data_io(ext2_filsys fs, io_channel *old_io);
1555 errcode_t ext2fs_set_data_io(ext2_filsys fs, io_channel new_io);
1556 errcode_t ext2fs_rewrite_to_io(ext2_filsys fs, io_channel new_io);
1558 /* get_pathname.c */
1559 extern errcode_t ext2fs_get_pathname(ext2_filsys fs, ext2_ino_t dir, ext2_ino_t ino,
1563 errcode_t ext2fs_link(ext2_filsys fs, ext2_ino_t dir, const char *name,
1564 ext2_ino_t ino, int flags);
1565 errcode_t ext2fs_unlink(ext2_filsys fs, ext2_ino_t dir, const char *name,
1566 ext2_ino_t ino, int flags);
1569 errcode_t ext2fs_symlink(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t ino,
1570 const char *name, const char *target);
1573 errcode_t ext2fs_mmp_read(ext2_filsys fs, blk64_t mmp_blk, void *buf);
1574 errcode_t ext2fs_mmp_write(ext2_filsys fs, blk64_t mmp_blk, void *buf);
1575 errcode_t ext2fs_mmp_clear(ext2_filsys fs);
1576 errcode_t ext2fs_mmp_init(ext2_filsys fs);
1577 errcode_t ext2fs_mmp_start(ext2_filsys fs);
1578 errcode_t ext2fs_mmp_update(ext2_filsys fs);
1579 errcode_t ext2fs_mmp_update2(ext2_filsys fs, int immediately);
1580 errcode_t ext2fs_mmp_stop(ext2_filsys fs);
1581 unsigned ext2fs_mmp_new_seq(void);
1584 extern errcode_t ext2fs_read_bb_inode(ext2_filsys fs,
1585 ext2_badblocks_list *bb_list);
1587 /* read_bb_file.c */
1588 extern errcode_t ext2fs_read_bb_FILE2(ext2_filsys fs, FILE *f,
1589 ext2_badblocks_list *bb_list,
1591 void (*invalid)(ext2_filsys fs,
1595 extern errcode_t ext2fs_read_bb_FILE(ext2_filsys fs, FILE *f,
1596 ext2_badblocks_list *bb_list,
1597 void (*invalid)(ext2_filsys fs,
1601 extern errcode_t ext2fs_create_resize_inode(ext2_filsys fs);
1604 #define EXT2FS_SHA256_LENGTH 32
1606 extern void ext2fs_sha256(const unsigned char *in, unsigned long in_size,
1607 unsigned char out[EXT2FS_SHA256_LENGTH]);
1611 #define EXT2FS_SHA512_LENGTH 64
1612 extern void ext2fs_sha512(const unsigned char *in, unsigned long in_size,
1613 unsigned char out[EXT2FS_SHA512_LENGTH]);
1616 extern errcode_t ext2fs_dirent_swab_in2(ext2_filsys fs, char *buf, size_t size,
1618 extern errcode_t ext2fs_dirent_swab_in(ext2_filsys fs, char *buf, int flags);
1619 extern errcode_t ext2fs_dirent_swab_out2(ext2_filsys fs, char *buf, size_t size,
1621 extern errcode_t ext2fs_dirent_swab_out(ext2_filsys fs, char *buf, int flags);
1622 extern void ext2fs_swap_ext_attr(char *to, char *from, int bufsize,
1624 extern void ext2fs_swap_ext_attr_header(struct ext2_ext_attr_header *to_header,
1625 struct ext2_ext_attr_header *from_hdr);
1626 extern void ext2fs_swap_ext_attr_entry(struct ext2_ext_attr_entry *to_entry,
1627 struct ext2_ext_attr_entry *from_entry);
1628 extern void ext2fs_swap_super(struct ext2_super_block * super);
1629 extern void ext2fs_swap_group_desc(struct ext2_group_desc *gdp);
1630 extern void ext2fs_swap_group_desc2(ext2_filsys, struct ext2_group_desc *gdp);
1631 extern void ext2fs_swap_inode_full(ext2_filsys fs, struct ext2_inode_large *t,
1632 struct ext2_inode_large *f, int hostorder,
1634 extern void ext2fs_swap_inode(ext2_filsys fs,struct ext2_inode *t,
1635 struct ext2_inode *f, int hostorder);
1636 extern void ext2fs_swap_mmp(struct mmp_struct *mmp);
1639 extern int ext2fs_open_file(const char *pathname, int flags, mode_t mode);
1640 extern int ext2fs_stat(const char *path, ext2fs_struct_stat *buf);
1641 extern int ext2fs_fstat(int fd, ext2fs_struct_stat *buf);
1644 extern int ext2fs_inode_has_valid_blocks(struct ext2_inode *inode);
1645 extern int ext2fs_inode_has_valid_blocks2(ext2_filsys fs,
1646 struct ext2_inode *inode);
1649 extern int ext2fs_parse_version_string(const char *ver_string);
1650 extern int ext2fs_get_library_version(const char **ver_string,
1651 const char **date_string);
1653 /* write_bb_file.c */
1654 extern errcode_t ext2fs_write_bb_FILE(ext2_badblocks_list bb_list,
1659 /* inline functions */
1660 #ifdef NO_INLINE_FUNCS
1661 extern void ext2fs_init_csum_seed(ext2_filsys fs);
1662 extern errcode_t ext2fs_get_mem(unsigned long size, void *ptr);
1663 extern errcode_t ext2fs_get_memzero(unsigned long size, void *ptr);
1664 extern errcode_t ext2fs_get_array(unsigned long count,
1665 unsigned long size, void *ptr);
1666 extern errcode_t ext2fs_get_arrayzero(unsigned long count,
1667 unsigned long size, void *ptr);
1668 extern errcode_t ext2fs_free_mem(void *ptr);
1669 extern errcode_t ext2fs_resize_mem(unsigned long old_size,
1670 unsigned long size, void *ptr);
1671 extern void ext2fs_mark_super_dirty(ext2_filsys fs);
1672 extern void ext2fs_mark_changed(ext2_filsys fs);
1673 extern int ext2fs_test_changed(ext2_filsys fs);
1674 extern void ext2fs_mark_valid(ext2_filsys fs);
1675 extern void ext2fs_unmark_valid(ext2_filsys fs);
1676 extern int ext2fs_test_valid(ext2_filsys fs);
1677 extern void ext2fs_mark_ib_dirty(ext2_filsys fs);
1678 extern void ext2fs_mark_bb_dirty(ext2_filsys fs);
1679 extern int ext2fs_test_ib_dirty(ext2_filsys fs);
1680 extern int ext2fs_test_bb_dirty(ext2_filsys fs);
1681 extern dgrp_t ext2fs_group_of_blk(ext2_filsys fs, blk_t blk);
1682 extern dgrp_t ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino);
1683 extern blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group);
1684 extern blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group);
1685 extern blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
1686 struct ext2_inode *inode);
1687 extern unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b);
1688 extern __u64 ext2fs_div64_ceil(__u64 a, __u64 b);
1689 extern int ext2fs_dirent_name_len(const struct ext2_dir_entry *entry);
1690 extern void ext2fs_dirent_set_name_len(struct ext2_dir_entry *entry, int len);
1691 extern int ext2fs_dirent_file_type(const struct ext2_dir_entry *entry);
1692 extern void ext2fs_dirent_set_file_type(struct ext2_dir_entry *entry, int type);
1697 * The actual inlined functions definitions themselves...
1699 * If NO_INLINE_FUNCS is defined, then we won't try to do inline
1702 #if (defined(INCLUDE_INLINE_FUNCS) || !defined(NO_INLINE_FUNCS))
1703 #ifdef INCLUDE_INLINE_FUNCS
1704 #define _INLINE_ extern
1706 #if (__STDC_VERSION__ >= 199901L)
1707 #define _INLINE_ inline
1710 #define _INLINE_ extern __inline__
1711 #else /* For Watcom C */
1712 #define _INLINE_ extern inline
1713 #endif /* __GNUC__ */
1714 #endif /* __STDC_VERSION__ >= 199901L */
1717 _INLINE_ void ext2fs_init_csum_seed(ext2_filsys fs)
1719 if (!EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
1720 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
1723 fs->csum_seed = ext2fs_crc32c_le(~0, fs->super->s_uuid,
1724 sizeof(fs->super->s_uuid));
1727 #ifndef EXT2_CUSTOM_MEMORY_ROUTINES
1730 * Allocate memory. The 'ptr' arg must point to a pointer.
1732 _INLINE_ errcode_t ext2fs_get_mem(unsigned long size, void *ptr)
1738 return EXT2_ET_NO_MEMORY;
1739 memcpy(ptr, &pp, sizeof (pp));
1743 _INLINE_ errcode_t ext2fs_get_memzero(unsigned long size, void *ptr)
1749 return EXT2_ET_NO_MEMORY;
1750 memset(pp, 0, size);
1751 memcpy(ptr, &pp, sizeof(pp));
1755 _INLINE_ errcode_t ext2fs_get_array(unsigned long count, unsigned long size, void *ptr)
1757 if (count && (~0UL)/count < size)
1758 return EXT2_ET_NO_MEMORY;
1759 return ext2fs_get_mem(count*size, ptr);
1762 _INLINE_ errcode_t ext2fs_get_arrayzero(unsigned long count,
1763 unsigned long size, void *ptr)
1767 if (count && (~0UL)/count < size)
1768 return EXT2_ET_NO_MEMORY;
1769 pp = calloc(count, size);
1771 return EXT2_ET_NO_MEMORY;
1772 memcpy(ptr, &pp, sizeof(pp));
1777 * Free memory. The 'ptr' arg must point to a pointer.
1779 _INLINE_ errcode_t ext2fs_free_mem(void *ptr)
1783 memcpy(&p, ptr, sizeof(p));
1786 memcpy(ptr, &p, sizeof(p));
1791 * Resize memory. The 'ptr' arg must point to a pointer.
1793 _INLINE_ errcode_t ext2fs_resize_mem(unsigned long EXT2FS_ATTR((unused)) old_size,
1794 unsigned long size, void *ptr)
1798 /* Use "memcpy" for pointer assignments here to avoid problems
1799 * with C99 strict type aliasing rules. */
1800 memcpy(&p, ptr, sizeof(p));
1801 p = realloc(p, size);
1803 return EXT2_ET_NO_MEMORY;
1804 memcpy(ptr, &p, sizeof(p));
1807 #endif /* Custom memory routines */
1810 * Mark a filesystem superblock as dirty
1812 _INLINE_ void ext2fs_mark_super_dirty(ext2_filsys fs)
1814 fs->flags |= EXT2_FLAG_DIRTY | EXT2_FLAG_CHANGED;
1818 * Mark a filesystem as changed
1820 _INLINE_ void ext2fs_mark_changed(ext2_filsys fs)
1822 fs->flags |= EXT2_FLAG_CHANGED;
1826 * Check to see if a filesystem has changed
1828 _INLINE_ int ext2fs_test_changed(ext2_filsys fs)
1830 return (fs->flags & EXT2_FLAG_CHANGED);
1834 * Mark a filesystem as valid
1836 _INLINE_ void ext2fs_mark_valid(ext2_filsys fs)
1838 fs->flags |= EXT2_FLAG_VALID;
1842 * Mark a filesystem as NOT valid
1844 _INLINE_ void ext2fs_unmark_valid(ext2_filsys fs)
1846 fs->flags &= ~EXT2_FLAG_VALID;
1850 * Check to see if a filesystem is valid
1852 _INLINE_ int ext2fs_test_valid(ext2_filsys fs)
1854 return (fs->flags & EXT2_FLAG_VALID);
1858 * Mark the inode bitmap as dirty
1860 _INLINE_ void ext2fs_mark_ib_dirty(ext2_filsys fs)
1862 fs->flags |= EXT2_FLAG_IB_DIRTY | EXT2_FLAG_CHANGED;
1866 * Mark the block bitmap as dirty
1868 _INLINE_ void ext2fs_mark_bb_dirty(ext2_filsys fs)
1870 fs->flags |= EXT2_FLAG_BB_DIRTY | EXT2_FLAG_CHANGED;
1874 * Check to see if a filesystem's inode bitmap is dirty
1876 _INLINE_ int ext2fs_test_ib_dirty(ext2_filsys fs)
1878 return (fs->flags & EXT2_FLAG_IB_DIRTY);
1882 * Check to see if a filesystem's block bitmap is dirty
1884 _INLINE_ int ext2fs_test_bb_dirty(ext2_filsys fs)
1886 return (fs->flags & EXT2_FLAG_BB_DIRTY);
1890 * Return the group # of a block
1892 _INLINE_ dgrp_t ext2fs_group_of_blk(ext2_filsys fs, blk_t blk)
1894 return ext2fs_group_of_blk2(fs, blk);
1897 * Return the group # of an inode number
1899 _INLINE_ dgrp_t ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino)
1901 return (ino - 1) / fs->super->s_inodes_per_group;
1905 * Return the first block (inclusive) in a group
1907 _INLINE_ blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group)
1909 return (blk_t) ext2fs_group_first_block2(fs, group);
1913 * Return the last block (inclusive) in a group
1915 _INLINE_ blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group)
1917 return (blk_t) ext2fs_group_last_block2(fs, group);
1920 _INLINE_ blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
1921 struct ext2_inode *inode)
1923 return (blk_t) ext2fs_inode_data_blocks2(fs, inode);
1927 * This is an efficient, overflow safe way of calculating ceil((1.0 * a) / b)
1929 _INLINE_ unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b)
1933 return ((a - 1) / b) + 1;
1936 _INLINE_ __u64 ext2fs_div64_ceil(__u64 a, __u64 b)
1940 return ((a - 1) / b) + 1;
1943 _INLINE_ int ext2fs_dirent_name_len(const struct ext2_dir_entry *entry)
1945 return entry->name_len & 0xff;
1948 _INLINE_ void ext2fs_dirent_set_name_len(struct ext2_dir_entry *entry, int len)
1950 entry->name_len = (entry->name_len & 0xff00) | (len & 0xff);
1953 _INLINE_ int ext2fs_dirent_file_type(const struct ext2_dir_entry *entry)
1955 return entry->name_len >> 8;
1958 _INLINE_ void ext2fs_dirent_set_file_type(struct ext2_dir_entry *entry, int type)
1960 entry->name_len = (entry->name_len & 0xff) | (type << 8);
1970 #endif /* _EXT2FS_EXT2FS_H */