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)
22 #ifdef __has_attribute
23 #if __has_attribute(__nonstring__)
24 #define __nonstring __attribute__((__nonstring__))
27 #endif /* __has_attribute(__nonstring__) */
30 #endif /* __has_attribute */
31 #endif /* __nonstring */
34 #define EXT2FS_NO_TDB_UNUSED
36 #define EXT2FS_NO_TDB_UNUSED EXT2FS_ATTR((unused))
44 * Non-GNU C compilers won't necessarily understand inline
46 #if (!defined(__GNUC__) && !defined(__WATCOMC__))
47 #define NO_INLINE_FUNCS
51 * Where the master copy of the superblock is located, and how big
52 * superblocks are supposed to be. We define SUPERBLOCK_SIZE because
53 * the size of the superblock structure is not necessarily trustworthy
54 * (some versions have the padding set up so that the superblock is
57 #define SUPERBLOCK_OFFSET 1024
58 #define SUPERBLOCK_SIZE 1024
60 #define UUID_STR_SIZE 37
63 * The last ext2fs revision level that this version of the library is
66 #define EXT2_LIB_CURRENT_REV EXT2_DYNAMIC_REV
68 #ifdef HAVE_SYS_TYPES_H
69 #include <sys/types.h>
78 #if EXT2_FLAT_INCLUDES
81 #include "ext3_extents.h"
83 #include <ext2fs/ext2_types.h>
84 #include <ext2fs/ext2_fs.h>
85 #include <ext2fs/ext3_extents.h>
86 #endif /* EXT2_FLAT_INCLUDES */
88 typedef __u32 __bitwise ext2_ino_t;
89 typedef __u32 __bitwise blk_t;
90 typedef __u64 __bitwise blk64_t;
91 typedef __u32 __bitwise dgrp_t;
92 typedef __s32 __bitwise ext2_off_t;
93 typedef __s64 __bitwise ext2_off64_t;
94 typedef __s64 __bitwise e2_blkcnt_t;
95 typedef __u32 __bitwise ext2_dirhash_t;
97 #if EXT2_FLAT_INCLUDES
100 #include "ext2_err.h"
101 #include "ext2_ext_attr.h"
103 #include <et/com_err.h>
104 #include <ext2fs/ext2_io.h>
105 #include <ext2fs/ext2_err.h>
106 #include <ext2fs/ext2_ext_attr.h>
112 * Portability help for Microsoft Visual C++
115 #define EXT2_QSORT_TYPE int __cdecl
117 #define EXT2_QSORT_TYPE int
120 typedef struct struct_ext2_filsys *ext2_filsys;
122 #define EXT2FS_MARK_ERROR 0
123 #define EXT2FS_UNMARK_ERROR 1
124 #define EXT2FS_TEST_ERROR 2
126 struct ext2fs_struct_generic_bitmap_base {
131 typedef struct ext2fs_struct_generic_bitmap_base *ext2fs_generic_bitmap;
132 typedef struct ext2fs_struct_generic_bitmap_base *ext2fs_inode_bitmap;
133 typedef struct ext2fs_struct_generic_bitmap_base *ext2fs_block_bitmap;
135 #define EXT2_FIRST_INODE(s) EXT2_FIRST_INO(s)
139 * Badblocks list definitions
142 typedef struct ext2_struct_u32_list *ext2_badblocks_list;
143 typedef struct ext2_struct_u32_iterate *ext2_badblocks_iterate;
145 typedef struct ext2_struct_u32_list *ext2_u32_list;
146 typedef struct ext2_struct_u32_iterate *ext2_u32_iterate;
149 typedef struct ext2_struct_u32_list *badblocks_list;
150 typedef struct ext2_struct_u32_iterate *badblocks_iterate;
152 #define BADBLOCKS_FLAG_DIRTY 1
155 * ext2_dblist structure and abstractions (see dblist.c)
157 struct ext2_db_entry2 {
160 e2_blkcnt_t blockcnt;
163 /* Ye Olde 32-bit version */
164 struct ext2_db_entry {
170 typedef struct ext2_struct_dblist *ext2_dblist;
172 #define DBLIST_ABORT 1
175 * ext2_fileio definitions
178 #define EXT2_FILE_WRITE 0x0001
179 #define EXT2_FILE_CREATE 0x0002
181 #define EXT2_FILE_MASK 0x00FF
183 #define EXT2_FILE_BUF_DIRTY 0x4000
184 #define EXT2_FILE_BUF_VALID 0x2000
186 typedef struct ext2_file *ext2_file_t;
188 #define EXT2_SEEK_SET 0
189 #define EXT2_SEEK_CUR 1
190 #define EXT2_SEEK_END 2
193 * Flags for the ext2_filsys structure and for ext2fs_open()
195 #define EXT2_FLAG_RW 0x01
196 #define EXT2_FLAG_CHANGED 0x02
197 #define EXT2_FLAG_DIRTY 0x04
198 #define EXT2_FLAG_VALID 0x08
199 #define EXT2_FLAG_IB_DIRTY 0x10
200 #define EXT2_FLAG_BB_DIRTY 0x20
201 #define EXT2_FLAG_SWAP_BYTES 0x40
202 #define EXT2_FLAG_SWAP_BYTES_READ 0x80
203 #define EXT2_FLAG_SWAP_BYTES_WRITE 0x100
204 #define EXT2_FLAG_MASTER_SB_ONLY 0x200
205 #define EXT2_FLAG_FORCE 0x400
206 #define EXT2_FLAG_SUPER_ONLY 0x800
207 #define EXT2_FLAG_JOURNAL_DEV_OK 0x1000
208 #define EXT2_FLAG_IMAGE_FILE 0x2000
209 #define EXT2_FLAG_EXCLUSIVE 0x4000
210 #define EXT2_FLAG_SOFTSUPP_FEATURES 0x8000
211 #define EXT2_FLAG_NOFREE_ON_ERROR 0x10000
212 #define EXT2_FLAG_64BITS 0x20000
213 #define EXT2_FLAG_PRINT_PROGRESS 0x40000
214 #define EXT2_FLAG_DIRECT_IO 0x80000
215 #define EXT2_FLAG_SKIP_MMP 0x100000
216 #define EXT2_FLAG_IGNORE_CSUM_ERRORS 0x200000
217 #define EXT2_FLAG_SHARE_DUP 0x400000
218 #define EXT2_FLAG_IGNORE_SB_ERRORS 0x800000
219 #define EXT2_FLAG_BBITMAP_TAIL_PROBLEM 0x1000000
220 #define EXT2_FLAG_IBITMAP_TAIL_PROBLEM 0x2000000
221 #define EXT2_FLAG_THREADS 0x4000000
224 * Special flag in the ext2 inode i_flag field that means that this is
225 * a new inode. (So that ext2_write_inode() can clear extra fields.)
227 #define EXT2_NEW_INODE_FL 0x80000000
230 * Flags for mkjournal
232 #define EXT2_MKJOURNAL_V1_SUPER 0x0000001 /* create V1 superblock (deprecated) */
233 #define EXT2_MKJOURNAL_LAZYINIT 0x0000002 /* don't zero journal inode before use*/
234 #define EXT2_MKJOURNAL_NO_MNT_CHECK 0x0000004 /* don't check mount status */
237 * Normal journal area size to fast commit area size ratio. This is used to
238 * set default size of fast commit area.
240 #define EXT2_JOURNAL_TO_FC_BLKS_RATIO 64
242 struct blk_alloc_ctx;
243 struct opaque_ext2_group_desc;
245 struct struct_ext2_filsys {
250 struct ext2_super_block * super;
251 unsigned int blocksize;
253 dgrp_t group_desc_count;
254 unsigned long desc_blocks;
255 struct opaque_ext2_group_desc * group_desc;
256 unsigned int inode_blocks_per_group;
257 ext2fs_inode_bitmap inode_map;
258 ext2fs_block_bitmap block_map;
259 /* XXX FIXME-64: not 64-bit safe, but not used? */
260 errcode_t (*get_blocks)(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
261 errcode_t (*check_directory)(ext2_filsys fs, ext2_ino_t ino);
262 errcode_t (*write_bitmaps)(ext2_filsys fs);
263 errcode_t (*read_inode)(ext2_filsys fs, ext2_ino_t ino,
264 struct ext2_inode *inode);
265 errcode_t (*write_inode)(ext2_filsys fs, ext2_ino_t ino,
266 struct ext2_inode *inode);
267 ext2_badblocks_list badblocks;
269 __u32 stride; /* for mke2fs */
270 struct ext2_super_block * orig_super;
271 struct ext2_image_hdr * image_header;
274 int cluster_ratio_bits;
275 __u16 default_bitmap_type;
278 * Reserved for future expansion
283 * Reserved for the use of the calling application.
290 struct ext2_inode_cache *icache;
294 * More callback functions
296 errcode_t (*get_alloc_block)(ext2_filsys fs, blk64_t goal,
298 errcode_t (*get_alloc_block2)(ext2_filsys fs, blk64_t goal,
299 blk64_t *ret, struct blk_alloc_ctx *ctx);
300 void (*block_alloc_stats)(ext2_filsys fs, blk64_t blk, int inuse);
303 * Buffers for Multiple mount protection(MMP) block.
310 * Time at which e2fsck last updated the MMP block.
312 long mmp_last_written;
314 /* progress operation functions */
315 struct ext2fs_progress_ops *progress_ops;
317 /* Precomputed FS UUID checksum for seeding other checksums */
320 io_channel journal_io;
323 /* New block range allocation hooks */
324 errcode_t (*new_range)(ext2_filsys fs, int flags, blk64_t goal,
325 blk64_t len, blk64_t *pblk, blk64_t *plen);
326 void (*block_alloc_stats_range)(ext2_filsys fs, blk64_t blk, blk_t num,
329 /* hashmap for SHA of data blocks */
330 struct ext2fs_hashmap* block_sha_map;
332 const struct ext2fs_nls_table *encoding;
335 #if EXT2_FLAT_INCLUDES
336 #include "e2_bitops.h"
338 #include <ext2fs/bitops.h>
342 * 64-bit bitmap backend types
344 #define EXT2FS_BMAP64_BITARRAY 1
345 #define EXT2FS_BMAP64_RBTREE 2
346 #define EXT2FS_BMAP64_AUTODIR 3
349 * Return flags for the block iterator functions
351 #define BLOCK_CHANGED 1
352 #define BLOCK_ABORT 2
353 #define BLOCK_ERROR 4
354 #define BLOCK_INLINE_DATA_CHANGED 8
357 * Block interate flags
359 * BLOCK_FLAG_APPEND, or BLOCK_FLAG_HOLE, indicates that the interator
360 * function should be called on blocks where the block number is zero.
361 * This is used by ext2fs_expand_dir() to be able to add a new block
362 * to an inode. It can also be used for programs that want to be able
363 * to deal with files that contain "holes".
365 * BLOCK_FLAG_DEPTH_TRAVERSE indicates that the iterator function for
366 * the indirect, doubly indirect, etc. blocks should be called after
367 * all of the blocks contained in the indirect blocks are processed.
368 * This is useful if you are going to be deallocating blocks from an
371 * BLOCK_FLAG_DATA_ONLY indicates that the iterator function should be
372 * called for data blocks only.
374 * BLOCK_FLAG_READ_ONLY is a promise by the caller that it will not
375 * modify returned block number.
377 * BLOCK_FLAG_NO_LARGE is for internal use only. It informs
378 * ext2fs_block_iterate2 that large files won't be accepted.
380 #define BLOCK_FLAG_APPEND 1
381 #define BLOCK_FLAG_HOLE 1
382 #define BLOCK_FLAG_DEPTH_TRAVERSE 2
383 #define BLOCK_FLAG_DATA_ONLY 4
384 #define BLOCK_FLAG_READ_ONLY 8
386 #define BLOCK_FLAG_NO_LARGE 0x1000
389 * Magic "block count" return values for the block iterator function.
391 #define BLOCK_COUNT_IND (-1)
392 #define BLOCK_COUNT_DIND (-2)
393 #define BLOCK_COUNT_TIND (-3)
394 #define BLOCK_COUNT_TRANSLATOR (-4)
396 #define BLOCK_ALLOC_UNKNOWN 0
397 #define BLOCK_ALLOC_DATA 1
398 #define BLOCK_ALLOC_METADATA 2
400 struct blk_alloc_ctx {
402 struct ext2_inode *inode;
409 * Flags for ext2fs_move_blocks
411 #define EXT2_BMOVE_GET_DBLIST 0x0001
412 #define EXT2_BMOVE_DEBUG 0x0002
416 * Generic (non-filesystem layout specific) extents structure
419 #define EXT2_EXTENT_FLAGS_LEAF 0x0001
420 #define EXT2_EXTENT_FLAGS_UNINIT 0x0002
421 #define EXT2_EXTENT_FLAGS_SECOND_VISIT 0x0004
423 struct ext2fs_extent {
424 blk64_t e_pblk; /* first physical block */
425 blk64_t e_lblk; /* first logical block extent covers */
426 __u32 e_len; /* number of blocks covered by extent */
427 __u32 e_flags; /* extent flags */
430 typedef struct ext2_extent_handle *ext2_extent_handle_t;
431 typedef struct ext2_extent_path *ext2_extent_path_t;
434 * Flags used by ext2fs_extent_get()
436 #define EXT2_EXTENT_CURRENT 0x0000
437 #define EXT2_EXTENT_MOVE_MASK 0x000F
438 #define EXT2_EXTENT_ROOT 0x0001
439 #define EXT2_EXTENT_LAST_LEAF 0x0002
440 #define EXT2_EXTENT_FIRST_SIB 0x0003
441 #define EXT2_EXTENT_LAST_SIB 0x0004
442 #define EXT2_EXTENT_NEXT_SIB 0x0005
443 #define EXT2_EXTENT_PREV_SIB 0x0006
444 #define EXT2_EXTENT_NEXT_LEAF 0x0007
445 #define EXT2_EXTENT_PREV_LEAF 0x0008
446 #define EXT2_EXTENT_NEXT 0x0009
447 #define EXT2_EXTENT_PREV 0x000A
448 #define EXT2_EXTENT_UP 0x000B
449 #define EXT2_EXTENT_DOWN 0x000C
450 #define EXT2_EXTENT_DOWN_AND_LAST 0x000D
453 * Flags used by ext2fs_extent_insert()
455 #define EXT2_EXTENT_INSERT_AFTER 0x0001 /* insert after handle loc'n */
456 #define EXT2_EXTENT_INSERT_NOSPLIT 0x0002 /* insert may not cause split */
459 * Flags used by ext2fs_extent_delete()
461 #define EXT2_EXTENT_DELETE_KEEP_EMPTY 0x001 /* keep node if last extent gone */
464 * Flags used by ext2fs_extent_set_bmap()
466 #define EXT2_EXTENT_SET_BMAP_UNINIT 0x0001
469 * Data structure returned by ext2fs_extent_get_info()
471 struct ext2_extent_info {
481 __u32 max_uninit_len;
485 * Flags for directory block reading and writing functions
487 #define EXT2_DIRBLOCK_V2_STRUCT 0x0001
490 * Return flags for the directory iterator functions
492 #define DIRENT_CHANGED 1
493 #define DIRENT_ABORT 2
494 #define DIRENT_ERROR 3
497 * Directory iterator flags
500 #define DIRENT_FLAG_INCLUDE_EMPTY 1
501 #define DIRENT_FLAG_INCLUDE_REMOVED 2
502 #define DIRENT_FLAG_INCLUDE_CSUM 4
503 #define DIRENT_FLAG_INCLUDE_INLINE_DATA 8
505 #define DIRENT_DOT_FILE 1
506 #define DIRENT_DOT_DOT_FILE 2
507 #define DIRENT_OTHER_FILE 3
508 #define DIRENT_DELETED_FILE 4
509 #define DIRENT_CHECKSUM 5
512 * Inode scan definitions
514 typedef struct ext2_struct_inode_scan *ext2_inode_scan;
519 #define EXT2_SF_CHK_BADBLOCKS 0x0001
520 #define EXT2_SF_BAD_INODE_BLK 0x0002
521 #define EXT2_SF_BAD_EXTRA_BYTES 0x0004
522 #define EXT2_SF_SKIP_MISSING_ITABLE 0x0008
523 #define EXT2_SF_DO_LAZY 0x0010
524 #define EXT2_SF_WARN_GARBAGE_INODES 0x0020
527 * ext2fs_check_if_mounted flags
529 #define EXT2_MF_MOUNTED 1
530 #define EXT2_MF_ISROOT 2
531 #define EXT2_MF_READONLY 4
532 #define EXT2_MF_SWAP 8
533 #define EXT2_MF_BUSY 16
536 * Ext2/linux mode flags. We define them here so that we don't need
537 * to depend on the OS's sys/stat.h, since we may be compiling on a
540 #define LINUX_S_IFMT 00170000
541 #define LINUX_S_IFSOCK 0140000
542 #define LINUX_S_IFLNK 0120000
543 #define LINUX_S_IFREG 0100000
544 #define LINUX_S_IFBLK 0060000
545 #define LINUX_S_IFDIR 0040000
546 #define LINUX_S_IFCHR 0020000
547 #define LINUX_S_IFIFO 0010000
548 #define LINUX_S_ISUID 0004000
549 #define LINUX_S_ISGID 0002000
550 #define LINUX_S_ISVTX 0001000
552 #define LINUX_S_IRWXU 00700
553 #define LINUX_S_IRUSR 00400
554 #define LINUX_S_IWUSR 00200
555 #define LINUX_S_IXUSR 00100
557 #define LINUX_S_IRWXG 00070
558 #define LINUX_S_IRGRP 00040
559 #define LINUX_S_IWGRP 00020
560 #define LINUX_S_IXGRP 00010
562 #define LINUX_S_IRWXO 00007
563 #define LINUX_S_IROTH 00004
564 #define LINUX_S_IWOTH 00002
565 #define LINUX_S_IXOTH 00001
567 #define LINUX_S_ISLNK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFLNK)
568 #define LINUX_S_ISREG(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFREG)
569 #define LINUX_S_ISDIR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFDIR)
570 #define LINUX_S_ISCHR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFCHR)
571 #define LINUX_S_ISBLK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFBLK)
572 #define LINUX_S_ISFIFO(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFIFO)
573 #define LINUX_S_ISSOCK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFSOCK)
576 * ext2 size of an inode
578 #define EXT2_I_SIZE(i) ((i)->i_size | ((__u64) (i)->i_size_high << 32))
581 * ext2_icount_t abstraction
583 #define EXT2_ICOUNT_OPT_INCREMENT 0x01
584 #define EXT2_ICOUNT_OPT_FULLMAP 0x02
586 typedef struct ext2_icount *ext2_icount_t;
589 * Flags for ext2fs_bmap
591 #define BMAP_ALLOC 0x0001
592 #define BMAP_SET 0x0002
593 #define BMAP_UNINIT 0x0004
594 #define BMAP_ZERO 0x0008
597 * Returned flags from ext2fs_bmap
599 #define BMAP_RET_UNINIT 0x0001
602 * Flags for ext2fs_read_inode2
604 #define READ_INODE_NOCSUM 0x0001
607 * Flags for ext2fs_write_inode2
609 #define WRITE_INODE_NOCSUM 0x0001
612 * Flags for imager.c functions
614 #define IMAGER_FLAG_INODEMAP 1
615 #define IMAGER_FLAG_SPARSEWRITE 2
618 * For checking structure magic numbers...
621 #define EXT2_CHECK_MAGIC(struct, code) \
622 if ((struct)->magic != (code)) return (code)
625 * Features supported by this version of the library
627 #define EXT2_LIB_FEATURE_COMPAT_SUPP (EXT2_FEATURE_COMPAT_DIR_PREALLOC|\
628 EXT2_FEATURE_COMPAT_IMAGIC_INODES|\
629 EXT3_FEATURE_COMPAT_HAS_JOURNAL|\
630 EXT2_FEATURE_COMPAT_RESIZE_INODE|\
631 EXT2_FEATURE_COMPAT_DIR_INDEX|\
632 EXT2_FEATURE_COMPAT_EXT_ATTR|\
633 EXT4_FEATURE_COMPAT_SPARSE_SUPER2|\
634 EXT4_FEATURE_COMPAT_FAST_COMMIT|\
635 EXT4_FEATURE_COMPAT_STABLE_INODES|\
636 EXT4_FEATURE_COMPAT_ORPHAN_FILE)
639 #define EXT4_LIB_INCOMPAT_MMP EXT4_FEATURE_INCOMPAT_MMP
641 #define EXT4_LIB_INCOMPAT_MMP (0)
644 #define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\
645 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\
646 EXT2_FEATURE_INCOMPAT_META_BG|\
647 EXT3_FEATURE_INCOMPAT_RECOVER|\
648 EXT3_FEATURE_INCOMPAT_EXTENTS|\
649 EXT4_FEATURE_INCOMPAT_FLEX_BG|\
650 EXT4_FEATURE_INCOMPAT_EA_INODE|\
651 EXT4_LIB_INCOMPAT_MMP|\
652 EXT4_FEATURE_INCOMPAT_64BIT|\
653 EXT4_FEATURE_INCOMPAT_INLINE_DATA|\
654 EXT4_FEATURE_INCOMPAT_ENCRYPT|\
655 EXT4_FEATURE_INCOMPAT_CASEFOLD|\
656 EXT4_FEATURE_INCOMPAT_CSUM_SEED|\
657 EXT4_FEATURE_INCOMPAT_LARGEDIR)
659 #define EXT2_LIB_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|\
660 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|\
661 EXT2_FEATURE_RO_COMPAT_LARGE_FILE|\
662 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|\
663 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|\
664 EXT4_FEATURE_RO_COMPAT_GDT_CSUM|\
665 EXT4_FEATURE_RO_COMPAT_BIGALLOC|\
666 EXT4_FEATURE_RO_COMPAT_QUOTA|\
667 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM|\
668 EXT4_FEATURE_RO_COMPAT_READONLY |\
669 EXT4_FEATURE_RO_COMPAT_PROJECT |\
670 EXT4_FEATURE_RO_COMPAT_SHARED_BLOCKS |\
671 EXT4_FEATURE_RO_COMPAT_VERITY |\
672 EXT4_FEATURE_RO_COMPAT_ORPHAN_PRESENT)
675 * These features are only allowed if EXT2_FLAG_SOFTSUPP_FEATURES is passed
678 #define EXT2_LIB_SOFTSUPP_INCOMPAT (0)
679 #define EXT2_LIB_SOFTSUPP_RO_COMPAT (EXT4_FEATURE_RO_COMPAT_REPLICA)
682 /* Translate a block number to a cluster number */
683 #define EXT2FS_CLUSTER_RATIO(fs) (1 << (fs)->cluster_ratio_bits)
684 #define EXT2FS_CLUSTER_MASK(fs) (EXT2FS_CLUSTER_RATIO(fs) - 1)
685 #define EXT2FS_B2C(fs, blk) ((blk) >> (fs)->cluster_ratio_bits)
686 /* Translate a cluster number to a block number */
687 #define EXT2FS_C2B(fs, cluster) ((cluster) << (fs)->cluster_ratio_bits)
688 /* Translate # of blks to # of clusters */
689 #define EXT2FS_NUM_B2C(fs, blks) (((blks) + EXT2FS_CLUSTER_MASK(fs)) >> \
690 (fs)->cluster_ratio_bits)
692 #if defined(HAVE_FSTAT64) && !defined(__OSX_AVAILABLE_BUT_DEPRECATED)
693 typedef struct stat64 ext2fs_struct_stat;
695 typedef struct stat ext2fs_struct_stat;
699 * For ext2fs_close2() and ext2fs_flush2(), this flag allows you to
700 * avoid the fsync call.
702 #define EXT2_FLAG_FLUSH_NO_SYNC 1
705 * Modify and iterate extended attributes
707 struct ext2_xattr_handle;
708 #define XATTR_ABORT 1
709 #define XATTR_CHANGED 2
712 * flags for ext2fs_rw_bitmaps()
714 #define EXT2FS_BITMAPS_WRITE 0x0001
715 #define EXT2FS_BITMAPS_BLOCK 0x0002
716 #define EXT2FS_BITMAPS_INODE 0x0004
717 #define EXT2FS_BITMAPS_VALID_FLAGS 0x0007
720 * function prototypes
722 static inline int ext2fs_has_group_desc_csum(ext2_filsys fs)
724 return ext2fs_has_feature_metadata_csum(fs->super) ||
725 ext2fs_has_feature_gdt_csum(fs->super);
728 /* The LARGE_FILE feature should be set if we have stored files 2GB+ in size */
729 static inline int ext2fs_needs_large_file_feature(unsigned long long file_size)
731 return file_size >= 0x80000000ULL;
735 extern void ext2fs_clear_block_uninit(ext2_filsys fs, dgrp_t group);
736 extern errcode_t ext2fs_new_inode(ext2_filsys fs, ext2_ino_t dir, int mode,
737 ext2fs_inode_bitmap map, ext2_ino_t *ret);
738 extern errcode_t ext2fs_new_block(ext2_filsys fs, blk_t goal,
739 ext2fs_block_bitmap map, blk_t *ret);
740 extern errcode_t ext2fs_new_block2(ext2_filsys fs, blk64_t goal,
741 ext2fs_block_bitmap map, blk64_t *ret);
742 extern errcode_t ext2fs_new_block3(ext2_filsys fs, blk64_t goal,
743 ext2fs_block_bitmap map, blk64_t *ret,
744 struct blk_alloc_ctx *ctx);
745 extern errcode_t ext2fs_get_free_blocks(ext2_filsys fs, blk_t start,
746 blk_t finish, int num,
747 ext2fs_block_bitmap map,
749 extern errcode_t ext2fs_get_free_blocks2(ext2_filsys fs, blk64_t start,
750 blk64_t finish, int num,
751 ext2fs_block_bitmap map,
753 extern errcode_t ext2fs_alloc_block(ext2_filsys fs, blk_t goal,
754 char *block_buf, blk_t *ret);
755 extern errcode_t ext2fs_alloc_block2(ext2_filsys fs, blk64_t goal,
756 char *block_buf, blk64_t *ret);
757 extern errcode_t ext2fs_alloc_block3(ext2_filsys fs, blk64_t goal,
758 char *block_buf, blk64_t *ret,
759 struct blk_alloc_ctx *ctx);
761 extern void ext2fs_set_alloc_block_callback(ext2_filsys fs,
762 errcode_t (*func)(ext2_filsys fs,
765 errcode_t (**old)(ext2_filsys fs,
768 blk64_t ext2fs_find_inode_goal(ext2_filsys fs, ext2_ino_t ino,
769 struct ext2_inode *inode, blk64_t lblk);
770 extern void ext2fs_set_new_range_callback(ext2_filsys fs,
771 errcode_t (*func)(ext2_filsys fs, int flags, blk64_t goal,
772 blk64_t len, blk64_t *pblk, blk64_t *plen),
773 errcode_t (**old)(ext2_filsys fs, int flags, blk64_t goal,
774 blk64_t len, blk64_t *pblk, blk64_t *plen));
775 extern void ext2fs_set_block_alloc_stats_range_callback(ext2_filsys fs,
776 void (*func)(ext2_filsys fs, blk64_t blk,
777 blk_t num, int inuse),
778 void (**old)(ext2_filsys fs, blk64_t blk,
779 blk_t num, int inuse));
780 #define EXT2_NEWRANGE_FIXED_GOAL (0x1)
781 #define EXT2_NEWRANGE_MIN_LENGTH (0x2)
782 #define EXT2_NEWRANGE_ALL_FLAGS (0x3)
783 errcode_t ext2fs_new_range(ext2_filsys fs, int flags, blk64_t goal,
784 blk64_t len, ext2fs_block_bitmap map, blk64_t *pblk,
786 #define EXT2_ALLOCRANGE_FIXED_GOAL (0x1)
787 #define EXT2_ALLOCRANGE_ZERO_BLOCKS (0x2)
788 #define EXT2_ALLOCRANGE_ALL_FLAGS (0x3)
789 errcode_t ext2fs_alloc_range(ext2_filsys fs, int flags, blk64_t goal,
790 blk_t len, blk64_t *ret);
793 extern int ext2fs_reserve_super_and_bgd(ext2_filsys fs,
795 ext2fs_block_bitmap bmap);
796 extern void ext2fs_set_block_alloc_stats_callback(ext2_filsys fs,
797 void (*func)(ext2_filsys fs,
800 void (**old)(ext2_filsys fs,
805 void ext2fs_inode_alloc_stats(ext2_filsys fs, ext2_ino_t ino, int inuse);
806 void ext2fs_inode_alloc_stats2(ext2_filsys fs, ext2_ino_t ino,
807 int inuse, int isdir);
808 void ext2fs_block_alloc_stats(ext2_filsys fs, blk_t blk, int inuse);
809 void ext2fs_block_alloc_stats2(ext2_filsys fs, blk64_t blk, int inuse);
810 void ext2fs_block_alloc_stats_range(ext2_filsys fs, blk64_t blk,
811 blk_t num, int inuse);
814 extern errcode_t ext2fs_allocate_tables(ext2_filsys fs);
815 extern errcode_t ext2fs_allocate_group_table(ext2_filsys fs, dgrp_t group,
816 ext2fs_block_bitmap bmap);
819 extern errcode_t ext2fs_u32_list_create(ext2_u32_list *ret, int size);
820 extern errcode_t ext2fs_u32_list_add(ext2_u32_list bb, __u32 blk);
821 extern int ext2fs_u32_list_find(ext2_u32_list bb, __u32 blk);
822 extern int ext2fs_u32_list_test(ext2_u32_list bb, blk_t blk);
823 extern errcode_t ext2fs_u32_list_iterate_begin(ext2_u32_list bb,
824 ext2_u32_iterate *ret);
825 extern int ext2fs_u32_list_iterate(ext2_u32_iterate iter, blk_t *blk);
826 extern void ext2fs_u32_list_iterate_end(ext2_u32_iterate iter);
827 extern errcode_t ext2fs_u32_copy(ext2_u32_list src, ext2_u32_list *dest);
828 extern int ext2fs_u32_list_equal(ext2_u32_list bb1, ext2_u32_list bb2);
830 extern errcode_t ext2fs_badblocks_list_create(ext2_badblocks_list *ret,
832 extern errcode_t ext2fs_badblocks_list_add(ext2_badblocks_list bb,
834 extern int ext2fs_badblocks_list_test(ext2_badblocks_list bb,
836 extern int ext2fs_u32_list_del(ext2_u32_list bb, __u32 blk);
837 extern void ext2fs_badblocks_list_del(ext2_u32_list bb, __u32 blk);
839 ext2fs_badblocks_list_iterate_begin(ext2_badblocks_list bb,
840 ext2_badblocks_iterate *ret);
841 extern int ext2fs_badblocks_list_iterate(ext2_badblocks_iterate iter,
843 extern void ext2fs_badblocks_list_iterate_end(ext2_badblocks_iterate iter);
844 extern errcode_t ext2fs_badblocks_copy(ext2_badblocks_list src,
845 ext2_badblocks_list *dest);
846 extern int ext2fs_badblocks_equal(ext2_badblocks_list bb1,
847 ext2_badblocks_list bb2);
848 extern int ext2fs_u32_list_count(ext2_u32_list bb);
851 extern errcode_t badblocks_list_create(badblocks_list *ret, int size);
852 extern errcode_t badblocks_list_add(badblocks_list bb, blk_t blk);
853 extern int badblocks_list_test(badblocks_list bb, blk_t blk);
854 extern errcode_t badblocks_list_iterate_begin(badblocks_list bb,
855 badblocks_iterate *ret);
856 extern int badblocks_list_iterate(badblocks_iterate iter, blk_t *blk);
857 extern void badblocks_list_iterate_end(badblocks_iterate iter);
858 extern void badblocks_list_free(badblocks_list bb);
861 extern errcode_t ext2fs_update_bb_inode(ext2_filsys fs,
862 ext2_badblocks_list bb_list);
865 extern void ext2fs_free_block_bitmap(ext2fs_block_bitmap bitmap);
866 extern void ext2fs_free_inode_bitmap(ext2fs_inode_bitmap bitmap);
867 extern errcode_t ext2fs_copy_bitmap(ext2fs_generic_bitmap src,
868 ext2fs_generic_bitmap *dest);
869 extern errcode_t ext2fs_allocate_block_bitmap(ext2_filsys fs,
871 ext2fs_block_bitmap *ret);
872 extern errcode_t ext2fs_allocate_subcluster_bitmap(ext2_filsys fs,
874 ext2fs_block_bitmap *ret);
875 extern int ext2fs_get_bitmap_granularity(ext2fs_block_bitmap bitmap);
876 extern errcode_t ext2fs_allocate_inode_bitmap(ext2_filsys fs,
878 ext2fs_inode_bitmap *ret);
879 extern errcode_t ext2fs_fudge_inode_bitmap_end(ext2fs_inode_bitmap bitmap,
880 ext2_ino_t end, ext2_ino_t *oend);
881 extern errcode_t ext2fs_fudge_block_bitmap_end(ext2fs_block_bitmap bitmap,
882 blk_t end, blk_t *oend);
883 extern errcode_t ext2fs_fudge_block_bitmap_end2(ext2fs_block_bitmap bitmap,
884 blk64_t end, blk64_t *oend);
885 extern void ext2fs_clear_inode_bitmap(ext2fs_inode_bitmap bitmap);
886 extern void ext2fs_clear_block_bitmap(ext2fs_block_bitmap bitmap);
887 extern errcode_t ext2fs_resize_inode_bitmap(__u32 new_end, __u32 new_real_end,
888 ext2fs_inode_bitmap bmap);
889 extern errcode_t ext2fs_resize_inode_bitmap2(__u64 new_end,
891 ext2fs_inode_bitmap bmap);
892 extern errcode_t ext2fs_resize_block_bitmap(__u32 new_end, __u32 new_real_end,
893 ext2fs_block_bitmap bmap);
894 extern errcode_t ext2fs_resize_block_bitmap2(__u64 new_end,
896 ext2fs_block_bitmap bmap);
897 extern errcode_t ext2fs_compare_block_bitmap(ext2fs_block_bitmap bm1,
898 ext2fs_block_bitmap bm2);
899 extern errcode_t ext2fs_compare_inode_bitmap(ext2fs_inode_bitmap bm1,
900 ext2fs_inode_bitmap bm2);
901 extern errcode_t ext2fs_set_inode_bitmap_range(ext2fs_inode_bitmap bmap,
902 ext2_ino_t start, unsigned int num,
904 extern errcode_t ext2fs_set_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
905 __u64 start, size_t num,
907 extern errcode_t ext2fs_get_inode_bitmap_range(ext2fs_inode_bitmap bmap,
908 ext2_ino_t start, unsigned int num,
910 extern errcode_t ext2fs_get_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
911 __u64 start, size_t num,
913 extern errcode_t ext2fs_set_block_bitmap_range(ext2fs_block_bitmap bmap,
914 blk_t start, unsigned int num,
916 extern errcode_t ext2fs_set_block_bitmap_range2(ext2fs_block_bitmap bmap,
917 blk64_t start, size_t num,
919 extern errcode_t ext2fs_get_block_bitmap_range(ext2fs_block_bitmap bmap,
920 blk_t start, unsigned int num,
922 extern errcode_t ext2fs_get_block_bitmap_range2(ext2fs_block_bitmap bmap,
923 blk64_t start, size_t num,
927 extern __u32 ext2fs_inode_bitmap_checksum(ext2_filsys fs, dgrp_t group);
928 extern __u32 ext2fs_block_bitmap_checksum(ext2_filsys fs, dgrp_t group);
929 extern dgrp_t ext2fs_group_of_blk2(ext2_filsys fs, blk64_t);
930 extern blk64_t ext2fs_group_first_block2(ext2_filsys fs, dgrp_t group);
931 extern blk64_t ext2fs_group_last_block2(ext2_filsys fs, dgrp_t group);
932 extern int ext2fs_group_blocks_count(ext2_filsys fs, dgrp_t group);
933 extern blk64_t ext2fs_inode_data_blocks2(ext2_filsys fs,
934 struct ext2_inode *inode);
935 extern blk64_t ext2fs_inode_i_blocks(ext2_filsys fs,
936 struct ext2_inode *inode);
937 extern blk64_t ext2fs_get_stat_i_blocks(ext2_filsys fs,
938 struct ext2_inode *inode);
939 extern blk64_t ext2fs_blocks_count(struct ext2_super_block *super);
940 extern void ext2fs_blocks_count_set(struct ext2_super_block *super,
942 extern void ext2fs_blocks_count_add(struct ext2_super_block *super,
944 extern blk64_t ext2fs_r_blocks_count(struct ext2_super_block *super);
945 extern void ext2fs_r_blocks_count_set(struct ext2_super_block *super,
947 extern void ext2fs_r_blocks_count_add(struct ext2_super_block *super,
949 extern blk64_t ext2fs_free_blocks_count(struct ext2_super_block *super);
950 extern void ext2fs_free_blocks_count_set(struct ext2_super_block *super,
952 extern void ext2fs_free_blocks_count_add(struct ext2_super_block *super,
954 /* Block group descriptor accessor functions */
955 extern struct ext2_group_desc *ext2fs_group_desc(ext2_filsys fs,
956 struct opaque_ext2_group_desc *gdp,
958 extern blk64_t ext2fs_block_bitmap_csum(ext2_filsys fs, dgrp_t group);
959 extern blk64_t ext2fs_block_bitmap_loc(ext2_filsys fs, dgrp_t group);
960 extern void ext2fs_block_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
962 extern __u32 ext2fs_inode_bitmap_csum(ext2_filsys fs, dgrp_t group);
963 extern blk64_t ext2fs_inode_bitmap_loc(ext2_filsys fs, dgrp_t group);
964 extern void ext2fs_inode_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
966 extern blk64_t ext2fs_inode_table_loc(ext2_filsys fs, dgrp_t group);
967 extern void ext2fs_inode_table_loc_set(ext2_filsys fs, dgrp_t group,
969 extern __u32 ext2fs_bg_free_blocks_count(ext2_filsys fs, dgrp_t group);
970 extern void ext2fs_bg_free_blocks_count_set(ext2_filsys fs, dgrp_t group,
972 extern __u32 ext2fs_bg_free_inodes_count(ext2_filsys fs, dgrp_t group);
973 extern void ext2fs_bg_free_inodes_count_set(ext2_filsys fs, dgrp_t group,
975 extern __u32 ext2fs_bg_used_dirs_count(ext2_filsys fs, dgrp_t group);
976 extern void ext2fs_bg_used_dirs_count_set(ext2_filsys fs, dgrp_t group,
978 extern __u32 ext2fs_bg_itable_unused(ext2_filsys fs, dgrp_t group);
979 extern void ext2fs_bg_itable_unused_set(ext2_filsys fs, dgrp_t group,
981 extern __u16 ext2fs_bg_flags(ext2_filsys fs, dgrp_t group);
982 extern void ext2fs_bg_flags_zap(ext2_filsys fs, dgrp_t group);
983 extern int ext2fs_bg_flags_test(ext2_filsys fs, dgrp_t group, __u16 bg_flag);
984 extern void ext2fs_bg_flags_set(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
985 extern void ext2fs_bg_flags_clear(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
986 extern __u16 ext2fs_bg_checksum(ext2_filsys fs, dgrp_t group);
987 extern void ext2fs_bg_checksum_set(ext2_filsys fs, dgrp_t group, __u16 checksum);
988 extern blk64_t ext2fs_file_acl_block(ext2_filsys fs,
989 const struct ext2_inode *inode);
990 extern void ext2fs_file_acl_block_set(ext2_filsys fs,
991 struct ext2_inode *inode, blk64_t blk);
992 extern errcode_t ext2fs_inode_size_set(ext2_filsys fs, struct ext2_inode *inode,
996 extern errcode_t ext2fs_block_iterate(ext2_filsys fs,
1000 int (*func)(ext2_filsys fs,
1005 errcode_t ext2fs_block_iterate2(ext2_filsys fs,
1009 int (*func)(ext2_filsys fs,
1011 e2_blkcnt_t blockcnt,
1016 errcode_t ext2fs_block_iterate3(ext2_filsys fs,
1020 int (*func)(ext2_filsys fs,
1022 e2_blkcnt_t blockcnt,
1029 extern errcode_t ext2fs_bmap(ext2_filsys fs, ext2_ino_t ino,
1030 struct ext2_inode *inode,
1031 char *block_buf, int bmap_flags,
1032 blk_t block, blk_t *phys_blk);
1033 extern errcode_t ext2fs_bmap2(ext2_filsys fs, ext2_ino_t ino,
1034 struct ext2_inode *inode,
1035 char *block_buf, int bmap_flags, blk64_t block,
1036 int *ret_flags, blk64_t *phys_blk);
1037 errcode_t ext2fs_map_cluster_block(ext2_filsys fs, ext2_ino_t ino,
1038 struct ext2_inode *inode, blk64_t lblk,
1043 extern errcode_t ext2fs_move_blocks(ext2_filsys fs,
1044 ext2fs_block_bitmap reserve,
1045 ext2fs_block_bitmap alloc_map,
1050 extern errcode_t ext2fs_check_desc(ext2_filsys fs);
1053 extern errcode_t ext2fs_close(ext2_filsys fs);
1054 extern errcode_t ext2fs_close2(ext2_filsys fs, int flags);
1055 extern errcode_t ext2fs_close_free(ext2_filsys *fs);
1056 extern errcode_t ext2fs_flush(ext2_filsys fs);
1057 extern errcode_t ext2fs_flush2(ext2_filsys fs, int flags);
1058 extern int ext2fs_bg_has_super(ext2_filsys fs, dgrp_t group_block);
1059 extern errcode_t ext2fs_super_and_bgd_loc2(ext2_filsys fs,
1061 blk64_t *ret_super_blk,
1062 blk64_t *ret_old_desc_blk,
1063 blk64_t *ret_new_desc_blk,
1064 blk_t *ret_used_blks);
1065 extern int ext2fs_super_and_bgd_loc(ext2_filsys fs,
1067 blk_t *ret_super_blk,
1068 blk_t *ret_old_desc_blk,
1069 blk_t *ret_new_desc_blk,
1071 extern void ext2fs_update_dynamic_rev(ext2_filsys fs);
1074 extern __u32 ext2fs_crc32_be(__u32 crc, unsigned char const *p, size_t len);
1075 extern __u32 ext2fs_crc32c_le(__u32 crc, unsigned char const *p, size_t len);
1078 extern void ext2fs_init_csum_seed(ext2_filsys fs);
1079 extern errcode_t ext2fs_mmp_csum_set(ext2_filsys fs, struct mmp_struct *mmp);
1080 extern int ext2fs_mmp_csum_verify(ext2_filsys, struct mmp_struct *mmp);
1081 extern int ext2fs_verify_csum_type(ext2_filsys fs, struct ext2_super_block *sb);
1082 extern errcode_t ext2fs_superblock_csum_set(ext2_filsys fs,
1083 struct ext2_super_block *sb);
1084 extern int ext2fs_superblock_csum_verify(ext2_filsys fs,
1085 struct ext2_super_block *sb);
1086 extern errcode_t ext2fs_ext_attr_block_csum_set(ext2_filsys fs,
1087 ext2_ino_t inum, blk64_t block,
1088 struct ext2_ext_attr_header *hdr);
1089 extern int ext2fs_ext_attr_block_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1091 struct ext2_ext_attr_header *hdr);
1092 #define EXT2_DIRENT_TAIL(block, blocksize) \
1093 ((struct ext2_dir_entry_tail *)(((char *)(block)) + \
1094 (blocksize) - sizeof(struct ext2_dir_entry_tail)))
1096 extern void ext2fs_initialize_dirent_tail(ext2_filsys fs,
1097 struct ext2_dir_entry_tail *t);
1098 extern int ext2fs_dirent_has_tail(ext2_filsys fs,
1099 struct ext2_dir_entry *dirent);
1100 extern int ext2fs_dirent_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1101 struct ext2_dir_entry *dirent);
1102 extern int ext2fs_dir_block_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1103 struct ext2_dir_entry *dirent);
1104 extern errcode_t ext2fs_dir_block_csum_set(ext2_filsys fs, ext2_ino_t inum,
1105 struct ext2_dir_entry *dirent);
1106 extern errcode_t ext2fs_get_dx_countlimit(ext2_filsys fs,
1107 struct ext2_dir_entry *dirent,
1108 struct ext2_dx_countlimit **cc,
1110 extern errcode_t ext2fs_dx_csum(ext2_filsys fs, ext2_ino_t inum,
1111 struct ext2_dir_entry *dirent,
1112 __u32 *crc, struct ext2_dx_tail **ret_t);
1113 extern errcode_t ext2fs_extent_block_csum_set(ext2_filsys fs,
1115 struct ext3_extent_header *eh);
1116 extern int ext2fs_extent_block_csum_verify(ext2_filsys fs,
1118 struct ext3_extent_header *eh);
1119 extern errcode_t ext2fs_block_bitmap_csum_set(ext2_filsys fs, dgrp_t group,
1120 char *bitmap, int size);
1121 extern int ext2fs_block_bitmap_csum_verify(ext2_filsys fs, dgrp_t group,
1122 char *bitmap, int size);
1123 extern errcode_t ext2fs_inode_bitmap_csum_set(ext2_filsys fs, dgrp_t group,
1124 char *bitmap, int size);
1125 extern int ext2fs_inode_bitmap_csum_verify(ext2_filsys fs, dgrp_t group,
1126 char *bitmap, int size);
1127 extern errcode_t ext2fs_inode_csum_set(ext2_filsys fs, ext2_ino_t inum,
1128 struct ext2_inode_large *inode);
1129 extern int ext2fs_inode_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1130 struct ext2_inode_large *inode);
1131 extern void ext2fs_group_desc_csum_set(ext2_filsys fs, dgrp_t group);
1132 extern int ext2fs_group_desc_csum_verify(ext2_filsys fs, dgrp_t group);
1133 extern errcode_t ext2fs_set_gdt_csum(ext2_filsys fs);
1134 extern __u16 ext2fs_group_desc_csum(ext2_filsys fs, dgrp_t group);
1137 extern errcode_t ext2fs_init_dblist(ext2_filsys fs, ext2_dblist *ret_dblist);
1138 extern errcode_t ext2fs_add_dir_block(ext2_dblist dblist, ext2_ino_t ino,
1139 blk_t blk, int blockcnt);
1140 extern errcode_t ext2fs_add_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
1141 blk64_t blk, e2_blkcnt_t blockcnt);
1142 extern void ext2fs_dblist_sort(ext2_dblist dblist,
1143 EXT2_QSORT_TYPE (*sortfunc)(const void *,
1145 extern void ext2fs_dblist_sort2(ext2_dblist dblist,
1146 EXT2_QSORT_TYPE (*sortfunc)(const void *,
1148 extern errcode_t ext2fs_dblist_iterate(ext2_dblist dblist,
1149 int (*func)(ext2_filsys fs, struct ext2_db_entry *db_info,
1152 extern errcode_t ext2fs_dblist_iterate2(ext2_dblist dblist,
1153 int (*func)(ext2_filsys fs, struct ext2_db_entry2 *db_info,
1156 extern errcode_t ext2fs_dblist_iterate3(ext2_dblist dblist,
1157 int (*func)(ext2_filsys fs, struct ext2_db_entry2 *db_info,
1159 unsigned long long start,
1160 unsigned long long count,
1162 extern errcode_t ext2fs_set_dir_block(ext2_dblist dblist, ext2_ino_t ino,
1163 blk_t blk, int blockcnt);
1164 extern errcode_t ext2fs_set_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
1165 blk64_t blk, e2_blkcnt_t blockcnt);
1166 extern errcode_t ext2fs_copy_dblist(ext2_dblist src,
1168 extern int ext2fs_dblist_count(ext2_dblist dblist);
1169 extern blk64_t ext2fs_dblist_count2(ext2_dblist dblist);
1170 extern errcode_t ext2fs_dblist_get_last(ext2_dblist dblist,
1171 struct ext2_db_entry **entry);
1172 extern errcode_t ext2fs_dblist_get_last2(ext2_dblist dblist,
1173 struct ext2_db_entry2 **entry);
1174 extern errcode_t ext2fs_dblist_drop_last(ext2_dblist dblist);
1178 ext2fs_dblist_dir_iterate(ext2_dblist dblist,
1181 int (*func)(ext2_ino_t dir,
1183 struct ext2_dir_entry *dirent,
1191 /* digest_encode.c */
1192 #define EXT2FS_DIGEST_SIZE EXT2FS_SHA256_LENGTH
1193 extern int ext2fs_digest_encode(const char *src, int len, char *dst);
1194 extern int ext2fs_digest_decode(const char *src, int len, char *dst);
1198 extern errcode_t ext2fs_read_dir_block(ext2_filsys fs, blk_t block,
1200 extern errcode_t ext2fs_read_dir_block2(ext2_filsys fs, blk_t block,
1201 void *buf, int flags);
1202 extern errcode_t ext2fs_read_dir_block3(ext2_filsys fs, blk64_t block,
1203 void *buf, int flags);
1204 extern errcode_t ext2fs_read_dir_block4(ext2_filsys fs, blk64_t block,
1205 void *buf, int flags, ext2_ino_t ino);
1206 extern errcode_t ext2fs_write_dir_block(ext2_filsys fs, blk_t block,
1208 extern errcode_t ext2fs_write_dir_block2(ext2_filsys fs, blk_t block,
1209 void *buf, int flags);
1210 extern errcode_t ext2fs_write_dir_block3(ext2_filsys fs, blk64_t block,
1211 void *buf, int flags);
1212 extern errcode_t ext2fs_write_dir_block4(ext2_filsys fs, blk64_t block,
1213 void *buf, int flags, ext2_ino_t ino);
1216 extern errcode_t ext2fs_dirhash(int version, const char *name, int len,
1218 ext2_dirhash_t *ret_hash,
1219 ext2_dirhash_t *ret_minor_hash);
1221 extern errcode_t ext2fs_dirhash2(int version, const char *name, int len,
1222 const struct ext2fs_nls_table *charset,
1225 ext2_dirhash_t *ret_hash,
1226 ext2_dirhash_t *ret_minor_hash);
1229 extern errcode_t ext2fs_get_rec_len(ext2_filsys fs,
1230 struct ext2_dir_entry *dirent,
1231 unsigned int *rec_len);
1232 extern errcode_t ext2fs_set_rec_len(ext2_filsys fs,
1234 struct ext2_dir_entry *dirent);
1235 extern errcode_t ext2fs_dir_iterate(ext2_filsys fs,
1239 int (*func)(struct ext2_dir_entry *dirent,
1245 extern errcode_t ext2fs_dir_iterate2(ext2_filsys fs,
1249 int (*func)(ext2_ino_t dir,
1251 struct ext2_dir_entry *dirent,
1259 extern errcode_t ext2fs_dup_handle(ext2_filsys src, ext2_filsys *dest);
1262 extern errcode_t ext2fs_expand_dir(ext2_filsys fs, ext2_ino_t dir);
1265 extern __u32 ext2fs_ext_attr_hash_entry(struct ext2_ext_attr_entry *entry,
1267 extern errcode_t ext2fs_ext_attr_hash_entry2(ext2_filsys fs,
1268 struct ext2_ext_attr_entry *entry,
1269 void *data, __u32 *hash);
1270 extern errcode_t ext2fs_read_ext_attr(ext2_filsys fs, blk_t block, void *buf);
1271 extern errcode_t ext2fs_read_ext_attr2(ext2_filsys fs, blk64_t block,
1273 extern errcode_t ext2fs_read_ext_attr3(ext2_filsys fs, blk64_t block,
1274 void *buf, ext2_ino_t inum);
1275 extern errcode_t ext2fs_write_ext_attr(ext2_filsys fs, blk_t block,
1277 extern errcode_t ext2fs_write_ext_attr2(ext2_filsys fs, blk64_t block,
1279 extern errcode_t ext2fs_write_ext_attr3(ext2_filsys fs, blk64_t block,
1280 void *buf, ext2_ino_t inum);
1281 extern errcode_t ext2fs_adjust_ea_refcount(ext2_filsys fs, blk_t blk,
1283 int adjust, __u32 *newcount);
1284 extern errcode_t ext2fs_adjust_ea_refcount2(ext2_filsys fs, blk64_t blk,
1286 int adjust, __u32 *newcount);
1287 extern errcode_t ext2fs_adjust_ea_refcount3(ext2_filsys fs, blk64_t blk,
1289 int adjust, __u32 *newcount,
1291 errcode_t ext2fs_xattrs_write(struct ext2_xattr_handle *handle);
1292 errcode_t ext2fs_xattrs_read(struct ext2_xattr_handle *handle);
1293 errcode_t ext2fs_xattrs_iterate(struct ext2_xattr_handle *h,
1294 int (*func)(char *name, char *value,
1295 size_t value_len, void *data),
1297 errcode_t ext2fs_xattr_get(struct ext2_xattr_handle *h, const char *key,
1298 void **value, size_t *value_len);
1299 errcode_t ext2fs_xattr_set(struct ext2_xattr_handle *handle,
1303 errcode_t ext2fs_xattr_remove(struct ext2_xattr_handle *handle,
1305 errcode_t ext2fs_xattrs_open(ext2_filsys fs, ext2_ino_t ino,
1306 struct ext2_xattr_handle **handle);
1307 errcode_t ext2fs_xattrs_close(struct ext2_xattr_handle **handle);
1308 errcode_t ext2fs_free_ext_attr(ext2_filsys fs, ext2_ino_t ino,
1309 struct ext2_inode_large *inode);
1310 errcode_t ext2fs_xattrs_count(struct ext2_xattr_handle *handle, size_t *count);
1311 errcode_t ext2fs_xattr_inode_max_size(ext2_filsys fs, ext2_ino_t ino,
1313 #define XATTR_HANDLE_FLAG_RAW 0x0001
1314 errcode_t ext2fs_xattrs_flags(struct ext2_xattr_handle *handle,
1315 unsigned int *new_flags, unsigned int *old_flags);
1316 extern void ext2fs_ext_attr_block_rehash(struct ext2_ext_attr_header *header,
1317 struct ext2_ext_attr_entry *end);
1318 extern __u32 ext2fs_get_ea_inode_hash(struct ext2_inode *inode);
1319 extern void ext2fs_set_ea_inode_hash(struct ext2_inode *inode, __u32 hash);
1320 extern __u64 ext2fs_get_ea_inode_ref(struct ext2_inode *inode);
1321 extern void ext2fs_set_ea_inode_ref(struct ext2_inode *inode, __u64 ref_count);
1324 extern errcode_t ext2fs_extent_header_verify(void *ptr, int size);
1325 extern errcode_t ext2fs_extent_open(ext2_filsys fs, ext2_ino_t ino,
1326 ext2_extent_handle_t *handle);
1327 extern errcode_t ext2fs_extent_open2(ext2_filsys fs, ext2_ino_t ino,
1328 struct ext2_inode *inode,
1329 ext2_extent_handle_t *ret_handle);
1330 extern void ext2fs_extent_free(ext2_extent_handle_t handle);
1331 extern errcode_t ext2fs_extent_get(ext2_extent_handle_t handle,
1332 int flags, struct ext2fs_extent *extent);
1333 extern errcode_t ext2fs_extent_node_split(ext2_extent_handle_t handle);
1334 extern errcode_t ext2fs_extent_replace(ext2_extent_handle_t handle, int flags,
1335 struct ext2fs_extent *extent);
1336 extern errcode_t ext2fs_extent_insert(ext2_extent_handle_t handle, int flags,
1337 struct ext2fs_extent *extent);
1338 extern errcode_t ext2fs_extent_set_bmap(ext2_extent_handle_t handle,
1339 blk64_t logical, blk64_t physical,
1341 extern errcode_t ext2fs_extent_delete(ext2_extent_handle_t handle, int flags);
1342 extern errcode_t ext2fs_extent_get_info(ext2_extent_handle_t handle,
1343 struct ext2_extent_info *info);
1344 extern errcode_t ext2fs_extent_goto(ext2_extent_handle_t handle,
1346 extern errcode_t ext2fs_extent_goto2(ext2_extent_handle_t handle,
1347 int leaf_level, blk64_t blk);
1348 extern errcode_t ext2fs_extent_fix_parents(ext2_extent_handle_t handle);
1349 extern size_t ext2fs_max_extent_depth(ext2_extent_handle_t handle);
1350 extern errcode_t ext2fs_fix_extents_checksums(ext2_filsys fs, ext2_ino_t ino,
1351 struct ext2_inode *inode);
1352 extern errcode_t ext2fs_count_blocks(ext2_filsys fs, ext2_ino_t ino,
1353 struct ext2_inode *inode, blk64_t *ret_count);
1354 extern errcode_t ext2fs_decode_extent(struct ext2fs_extent *to, void *from,
1358 #define EXT2_FALLOCATE_ZERO_BLOCKS (0x1)
1359 #define EXT2_FALLOCATE_FORCE_INIT (0x2)
1360 #define EXT2_FALLOCATE_FORCE_UNINIT (0x4)
1361 #define EXT2_FALLOCATE_INIT_BEYOND_EOF (0x8)
1362 #define EXT2_FALLOCATE_ALL_FLAGS (0xF)
1363 errcode_t ext2fs_fallocate(ext2_filsys fs, int flags, ext2_ino_t ino,
1364 struct ext2_inode *inode, blk64_t goal,
1365 blk64_t start, blk64_t len);
1368 extern errcode_t ext2fs_file_open2(ext2_filsys fs, ext2_ino_t ino,
1369 struct ext2_inode *inode,
1370 int flags, ext2_file_t *ret);
1371 extern errcode_t ext2fs_file_open(ext2_filsys fs, ext2_ino_t ino,
1372 int flags, ext2_file_t *ret);
1373 extern ext2_filsys ext2fs_file_get_fs(ext2_file_t file);
1374 struct ext2_inode *ext2fs_file_get_inode(ext2_file_t file);
1375 extern ext2_ino_t ext2fs_file_get_inode_num(ext2_file_t file);
1376 extern errcode_t ext2fs_file_close(ext2_file_t file);
1377 extern errcode_t ext2fs_file_flush(ext2_file_t file);
1378 extern errcode_t ext2fs_file_read(ext2_file_t file, void *buf,
1379 unsigned int wanted, unsigned int *got);
1380 extern errcode_t ext2fs_file_write(ext2_file_t file, const void *buf,
1381 unsigned int nbytes, unsigned int *written);
1382 extern errcode_t ext2fs_file_llseek(ext2_file_t file, __u64 offset,
1383 int whence, __u64 *ret_pos);
1384 extern errcode_t ext2fs_file_lseek(ext2_file_t file, ext2_off_t offset,
1385 int whence, ext2_off_t *ret_pos);
1386 errcode_t ext2fs_file_get_lsize(ext2_file_t file, __u64 *ret_size);
1387 extern ext2_off_t ext2fs_file_get_size(ext2_file_t file);
1388 extern errcode_t ext2fs_file_set_size(ext2_file_t file, ext2_off_t size);
1389 extern errcode_t ext2fs_file_set_size2(ext2_file_t file, ext2_off64_t size);
1392 extern char *ext2fs_find_block_device(dev_t device);
1395 extern errcode_t ext2fs_sync_device(int fd, int flushb);
1398 extern void ext2fs_free(ext2_filsys fs);
1399 extern void ext2fs_free_dblist(ext2_dblist dblist);
1400 extern void ext2fs_badblocks_list_free(ext2_badblocks_list bb);
1401 extern void ext2fs_u32_list_free(ext2_u32_list bb);
1404 extern void ext2fs_free_generic_bitmap(ext2fs_inode_bitmap bitmap);
1405 extern errcode_t ext2fs_make_generic_bitmap(errcode_t magic, ext2_filsys fs,
1406 __u32 start, __u32 end,
1408 const char *descr, char *init_map,
1409 ext2fs_generic_bitmap *ret);
1410 extern errcode_t ext2fs_allocate_generic_bitmap(__u32 start,
1414 ext2fs_generic_bitmap *ret);
1415 extern errcode_t ext2fs_copy_generic_bitmap(ext2fs_generic_bitmap src,
1416 ext2fs_generic_bitmap *dest);
1417 extern void ext2fs_clear_generic_bitmap(ext2fs_generic_bitmap bitmap);
1418 extern errcode_t ext2fs_fudge_generic_bitmap_end(ext2fs_inode_bitmap bitmap,
1423 extern void ext2fs_set_generic_bitmap_padding(ext2fs_generic_bitmap map);
1424 extern errcode_t ext2fs_resize_generic_bitmap(errcode_t magic,
1427 ext2fs_generic_bitmap bmap);
1428 extern errcode_t ext2fs_compare_generic_bitmap(errcode_t magic, errcode_t neq,
1429 ext2fs_generic_bitmap bm1,
1430 ext2fs_generic_bitmap bm2);
1431 extern errcode_t ext2fs_get_generic_bitmap_range(ext2fs_generic_bitmap bmap,
1433 __u32 start, __u32 num,
1435 extern errcode_t ext2fs_set_generic_bitmap_range(ext2fs_generic_bitmap bmap,
1437 __u32 start, __u32 num,
1439 extern errcode_t ext2fs_find_first_zero_generic_bitmap(ext2fs_generic_bitmap bitmap,
1440 __u32 start, __u32 end,
1442 extern errcode_t ext2fs_find_first_set_generic_bitmap(ext2fs_generic_bitmap bitmap,
1443 __u32 start, __u32 end,
1446 /* gen_bitmap64.c */
1447 void ext2fs_free_generic_bmap(ext2fs_generic_bitmap bmap);
1448 errcode_t ext2fs_alloc_generic_bmap(ext2_filsys fs, errcode_t magic,
1449 int type, __u64 start, __u64 end,
1452 ext2fs_generic_bitmap *ret);
1453 errcode_t ext2fs_copy_generic_bmap(ext2fs_generic_bitmap src,
1454 ext2fs_generic_bitmap *dest);
1455 void ext2fs_clear_generic_bmap(ext2fs_generic_bitmap bitmap);
1456 errcode_t ext2fs_fudge_generic_bmap_end(ext2fs_generic_bitmap bitmap,
1458 __u64 end, __u64 *oend);
1459 void ext2fs_set_generic_bmap_padding(ext2fs_generic_bitmap bmap);
1460 errcode_t ext2fs_resize_generic_bmap(ext2fs_generic_bitmap bmap,
1462 __u64 new_real_end);
1463 errcode_t ext2fs_compare_generic_bmap(errcode_t neq,
1464 ext2fs_generic_bitmap bm1,
1465 ext2fs_generic_bitmap bm2);
1466 errcode_t ext2fs_get_generic_bmap_range(ext2fs_generic_bitmap bmap,
1467 __u64 start, unsigned int num,
1469 errcode_t ext2fs_set_generic_bmap_range(ext2fs_generic_bitmap bmap,
1470 __u64 start, unsigned int num,
1472 errcode_t ext2fs_convert_subcluster_bitmap(ext2_filsys fs,
1473 ext2fs_block_bitmap *bitmap);
1474 errcode_t ext2fs_count_used_clusters(ext2_filsys fs, blk64_t start,
1475 blk64_t end, blk64_t *out);
1477 /* get_num_dirs.c */
1478 extern errcode_t ext2fs_get_num_dirs(ext2_filsys fs, ext2_ino_t *ret_num_dirs);
1481 extern errcode_t ext2fs_get_device_size(const char *file, int blocksize,
1483 extern errcode_t ext2fs_get_device_size2(const char *file, int blocksize,
1484 blk64_t *retblocks);
1487 extern int ext2fs_get_dio_alignment(int fd);
1488 errcode_t ext2fs_get_device_sectsize(const char *file, int *sectsize);
1489 errcode_t ext2fs_get_device_phys_sectsize(const char *file, int *sectsize);
1492 errcode_t ext2fs_iblk_add_blocks(ext2_filsys fs, struct ext2_inode *inode,
1493 blk64_t num_blocks);
1494 errcode_t ext2fs_iblk_sub_blocks(ext2_filsys fs, struct ext2_inode *inode,
1495 blk64_t num_blocks);
1496 errcode_t ext2fs_iblk_set(ext2_filsys fs, struct ext2_inode *inode, blk64_t b);
1499 extern errcode_t ext2fs_image_inode_write(ext2_filsys fs, int fd, int flags);
1500 extern errcode_t ext2fs_image_inode_read(ext2_filsys fs, int fd, int flags);
1501 extern errcode_t ext2fs_image_super_write(ext2_filsys fs, int fd, int flags);
1502 extern errcode_t ext2fs_image_super_read(ext2_filsys fs, int fd, int flags);
1503 extern errcode_t ext2fs_image_bitmap_write(ext2_filsys fs, int fd, int flags);
1504 extern errcode_t ext2fs_image_bitmap_read(ext2_filsys fs, int fd, int flags);
1507 errcode_t ext2fs_read_ind_block(ext2_filsys fs, blk_t blk, void *buf);
1508 errcode_t ext2fs_write_ind_block(ext2_filsys fs, blk_t blk, void *buf);
1511 extern errcode_t ext2fs_initialize(const char *name, int flags,
1512 struct ext2_super_block *param,
1513 io_manager manager, ext2_filsys *ret_fs);
1514 extern errcode_t ext2fs_calculate_summary_stats(ext2_filsys fs, int super_only);
1517 extern void ext2fs_free_icount(ext2_icount_t icount);
1518 extern errcode_t ext2fs_create_icount_tdb(ext2_filsys fs, char *tdb_dir,
1519 int flags, ext2_icount_t *ret);
1520 extern errcode_t ext2fs_create_icount2(ext2_filsys fs, int flags,
1522 ext2_icount_t hint, ext2_icount_t *ret);
1523 extern errcode_t ext2fs_create_icount(ext2_filsys fs, int flags,
1525 ext2_icount_t *ret);
1526 extern errcode_t ext2fs_icount_fetch(ext2_icount_t icount, ext2_ino_t ino,
1528 extern errcode_t ext2fs_icount_increment(ext2_icount_t icount, ext2_ino_t ino,
1530 extern errcode_t ext2fs_icount_decrement(ext2_icount_t icount, ext2_ino_t ino,
1532 extern errcode_t ext2fs_icount_store(ext2_icount_t icount, ext2_ino_t ino,
1534 extern ext2_ino_t ext2fs_get_icount_size(ext2_icount_t icount);
1535 errcode_t ext2fs_icount_validate(ext2_icount_t icount, FILE *);
1539 extern errcode_t ext2fs_get_memalign(unsigned long size,
1540 unsigned long align, void *ptr);
1543 extern errcode_t ext2fs_inline_data_init(ext2_filsys fs, ext2_ino_t ino);
1544 extern errcode_t ext2fs_inline_data_size(ext2_filsys fs, ext2_ino_t ino,
1546 extern errcode_t ext2fs_inline_data_get(ext2_filsys fs, ext2_ino_t ino,
1547 struct ext2_inode *inode,
1548 void *buf, size_t *size);
1549 extern errcode_t ext2fs_inline_data_set(ext2_filsys fs, ext2_ino_t ino,
1550 struct ext2_inode *inode,
1551 void *buf, size_t size);
1554 extern errcode_t ext2fs_create_inode_cache(ext2_filsys fs,
1555 unsigned int cache_size);
1556 extern void ext2fs_free_inode_cache(struct ext2_inode_cache *icache);
1557 extern errcode_t ext2fs_flush_icache(ext2_filsys fs);
1558 extern errcode_t ext2fs_get_next_inode_full(ext2_inode_scan scan,
1560 struct ext2_inode *inode,
1562 #define EXT2_INODE_SCAN_DEFAULT_BUFFER_BLOCKS 8
1563 extern errcode_t ext2fs_open_inode_scan(ext2_filsys fs, int buffer_blocks,
1564 ext2_inode_scan *ret_scan);
1565 extern void ext2fs_close_inode_scan(ext2_inode_scan scan);
1566 extern errcode_t ext2fs_get_next_inode(ext2_inode_scan scan, ext2_ino_t *ino,
1567 struct ext2_inode *inode);
1568 extern errcode_t ext2fs_inode_scan_goto_blockgroup(ext2_inode_scan scan,
1570 extern void ext2fs_set_inode_callback
1571 (ext2_inode_scan scan,
1572 errcode_t (*done_group)(ext2_filsys fs,
1573 ext2_inode_scan scan,
1576 void *done_group_data);
1577 extern int ext2fs_inode_scan_flags(ext2_inode_scan scan, int set_flags,
1579 extern errcode_t ext2fs_read_inode_full(ext2_filsys fs, ext2_ino_t ino,
1580 struct ext2_inode * inode,
1582 extern errcode_t ext2fs_read_inode(ext2_filsys fs, ext2_ino_t ino,
1583 struct ext2_inode * inode);
1584 extern errcode_t ext2fs_read_inode2(ext2_filsys fs, ext2_ino_t ino,
1585 struct ext2_inode * inode,
1586 int bufsize, int flags);
1587 extern errcode_t ext2fs_write_inode_full(ext2_filsys fs, ext2_ino_t ino,
1588 struct ext2_inode * inode,
1590 extern errcode_t ext2fs_write_inode(ext2_filsys fs, ext2_ino_t ino,
1591 struct ext2_inode * inode);
1592 extern errcode_t ext2fs_write_inode2(ext2_filsys fs, ext2_ino_t ino,
1593 struct ext2_inode * inode,
1594 int bufsize, int flags);
1595 extern errcode_t ext2fs_write_new_inode(ext2_filsys fs, ext2_ino_t ino,
1596 struct ext2_inode * inode);
1597 extern errcode_t ext2fs_get_blocks(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
1598 extern errcode_t ext2fs_check_directory(ext2_filsys fs, ext2_ino_t ino);
1601 extern io_manager inode_io_manager;
1602 extern errcode_t ext2fs_inode_io_intern(ext2_filsys fs, ext2_ino_t ino,
1604 extern errcode_t ext2fs_inode_io_intern2(ext2_filsys fs, ext2_ino_t ino,
1605 struct ext2_inode *inode,
1609 extern errcode_t ext2fs_check_if_mounted(const char *file, int *mount_flags);
1610 extern errcode_t ext2fs_check_mount_point(const char *device, int *mount_flags,
1611 char *mtpt, int mtlen);
1615 * NOTE: This function removes from an inode the blocks "start", "end", and
1616 * every block in between.
1618 extern errcode_t ext2fs_punch(ext2_filsys fs, ext2_ino_t ino,
1619 struct ext2_inode *inode,
1620 char *block_buf, blk64_t start,
1624 extern errcode_t ext2fs_lookup(ext2_filsys fs, ext2_ino_t dir, const char *name,
1625 int namelen, char *buf, ext2_ino_t *inode);
1626 extern errcode_t ext2fs_namei(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1627 const char *name, ext2_ino_t *inode);
1628 errcode_t ext2fs_namei_follow(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1629 const char *name, ext2_ino_t *inode);
1630 extern errcode_t ext2fs_follow_link(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1631 ext2_ino_t inode, ext2_ino_t *res_inode);
1634 int ext2fs_native_flag(void);
1637 extern errcode_t ext2fs_new_dir_block(ext2_filsys fs, ext2_ino_t dir_ino,
1638 ext2_ino_t parent_ino, char **block);
1639 extern errcode_t ext2fs_new_dir_inline_data(ext2_filsys fs, ext2_ino_t dir_ino,
1640 ext2_ino_t parent_ino, __u32 *iblock);
1643 extern const struct ext2fs_nls_table *ext2fs_load_nls_table(int encoding);
1644 extern int ext2fs_check_encoded_name(const struct ext2fs_nls_table *table,
1645 char *s, size_t len, char **pos);
1646 extern int ext2fs_casefold_cmp(const struct ext2fs_nls_table *table,
1647 const unsigned char *str1, size_t len1,
1648 const unsigned char *str2, size_t len2);
1651 extern errcode_t ext2fs_mkdir(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t inum,
1655 struct ext2fs_journal_params {
1656 blk_t num_journal_blocks;
1657 blk_t num_fc_blocks;
1659 extern errcode_t ext2fs_get_journal_params(
1660 struct ext2fs_journal_params *params, ext2_filsys fs);
1661 extern errcode_t ext2fs_zero_blocks(ext2_filsys fs, blk_t blk, int num,
1662 blk_t *ret_blk, int *ret_count);
1663 extern errcode_t ext2fs_zero_blocks2(ext2_filsys fs, blk64_t blk, int num,
1664 blk64_t *ret_blk, int *ret_count);
1665 extern errcode_t ext2fs_create_journal_superblock(ext2_filsys fs,
1666 __u32 num_blocks, int flags,
1668 extern errcode_t ext2fs_create_journal_superblock2(ext2_filsys fs,
1669 struct ext2fs_journal_params *params,
1670 int flags, char **ret_jsb);
1671 extern errcode_t ext2fs_add_journal_device(ext2_filsys fs,
1672 ext2_filsys journal_dev);
1673 extern errcode_t ext2fs_add_journal_inode(ext2_filsys fs, blk_t num_blocks,
1675 extern errcode_t ext2fs_add_journal_inode2(ext2_filsys fs, blk_t num_blocks,
1676 blk64_t goal, int flags);
1677 extern errcode_t ext2fs_add_journal_inode3(ext2_filsys fs,
1678 struct ext2fs_journal_params *params,
1679 blk64_t goal, int flags);
1680 extern int ext2fs_default_journal_size(__u64 num_blocks);
1681 extern int ext2fs_journal_sb_start(int blocksize);
1684 extern errcode_t ext2fs_open(const char *name, int flags, int superblock,
1685 unsigned int block_size, io_manager manager,
1686 ext2_filsys *ret_fs);
1687 extern errcode_t ext2fs_open2(const char *name, const char *io_options,
1688 int flags, int superblock,
1689 unsigned int block_size, io_manager manager,
1690 ext2_filsys *ret_fs);
1692 * The dgrp_t argument to these two functions is not actually a group number
1693 * but a block number offset within a group table! Convert with the formula
1694 * (group_number / groups_per_block).
1696 extern blk64_t ext2fs_descriptor_block_loc2(ext2_filsys fs,
1697 blk64_t group_block, dgrp_t i);
1698 extern blk_t ext2fs_descriptor_block_loc(ext2_filsys fs, blk_t group_block,
1700 errcode_t ext2fs_get_data_io(ext2_filsys fs, io_channel *old_io);
1701 errcode_t ext2fs_set_data_io(ext2_filsys fs, io_channel new_io);
1702 errcode_t ext2fs_rewrite_to_io(ext2_filsys fs, io_channel new_io);
1705 extern errcode_t ext2fs_create_orphan_file(ext2_filsys fs, blk_t num_blocks);
1706 extern errcode_t ext2fs_truncate_orphan_file(ext2_filsys fs);
1707 extern e2_blkcnt_t ext2fs_default_orphan_file_blocks(ext2_filsys fs);
1708 extern __u32 ext2fs_do_orphan_file_block_csum(ext2_filsys fs, ext2_ino_t ino,
1709 __u32 gen, blk64_t blk,
1711 extern errcode_t ext2fs_orphan_file_block_csum_set(ext2_filsys fs,
1712 ext2_ino_t ino, blk64_t blk,
1714 extern int ext2fs_orphan_file_block_csum_verify(ext2_filsys fs, ext2_ino_t ino,
1715 blk64_t blk, char *buf);
1717 /* get_pathname.c */
1718 extern errcode_t ext2fs_get_pathname(ext2_filsys fs, ext2_ino_t dir, ext2_ino_t ino,
1722 #define EXT2FS_UNLINK_FORCE 0x1 /* Forcefully unlink even if
1723 * the inode number doesn't
1726 errcode_t ext2fs_link(ext2_filsys fs, ext2_ino_t dir, const char *name,
1727 ext2_ino_t ino, int flags);
1728 errcode_t ext2fs_unlink(ext2_filsys fs, ext2_ino_t dir, const char *name,
1729 ext2_ino_t ino, int flags);
1732 errcode_t ext2fs_symlink(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t ino,
1733 const char *name, const char *target);
1734 int ext2fs_is_fast_symlink(struct ext2_inode *inode);
1737 errcode_t ext2fs_mmp_read(ext2_filsys fs, blk64_t mmp_blk, void *buf);
1738 errcode_t ext2fs_mmp_write(ext2_filsys fs, blk64_t mmp_blk, void *buf);
1739 errcode_t ext2fs_mmp_clear(ext2_filsys fs);
1740 errcode_t ext2fs_mmp_init(ext2_filsys fs);
1741 errcode_t ext2fs_mmp_start(ext2_filsys fs);
1742 errcode_t ext2fs_mmp_update(ext2_filsys fs);
1743 errcode_t ext2fs_mmp_update2(ext2_filsys fs, int immediately);
1744 errcode_t ext2fs_mmp_stop(ext2_filsys fs);
1745 unsigned ext2fs_mmp_new_seq(void);
1748 extern errcode_t ext2fs_read_bb_inode(ext2_filsys fs,
1749 ext2_badblocks_list *bb_list);
1751 /* read_bb_file.c */
1752 extern errcode_t ext2fs_read_bb_FILE2(ext2_filsys fs, FILE *f,
1753 ext2_badblocks_list *bb_list,
1755 void (*invalid)(ext2_filsys fs,
1759 extern errcode_t ext2fs_read_bb_FILE(ext2_filsys fs, FILE *f,
1760 ext2_badblocks_list *bb_list,
1761 void (*invalid)(ext2_filsys fs,
1765 extern errcode_t ext2fs_create_resize_inode(ext2_filsys fs);
1768 extern errcode_t ext2fs_rw_bitmaps(ext2_filsys fs, int flags, int num_threads);
1769 extern errcode_t ext2fs_read_bitmaps(ext2_filsys fs);
1770 extern errcode_t ext2fs_read_inode_bitmap (ext2_filsys fs);
1771 extern errcode_t ext2fs_read_block_bitmap(ext2_filsys fs);
1772 extern errcode_t ext2fs_write_bitmaps(ext2_filsys fs);
1773 extern errcode_t ext2fs_write_inode_bitmap(ext2_filsys fs);
1774 extern errcode_t ext2fs_write_block_bitmap (ext2_filsys fs);
1777 #define EXT2FS_SHA256_LENGTH 32
1779 extern void ext2fs_sha256(const unsigned char *in, unsigned long in_size,
1780 unsigned char out[EXT2FS_SHA256_LENGTH]);
1784 #define EXT2FS_SHA512_LENGTH 64
1785 extern void ext2fs_sha512(const unsigned char *in, unsigned long in_size,
1786 unsigned char out[EXT2FS_SHA512_LENGTH]);
1789 extern errcode_t ext2fs_dirent_swab_in2(ext2_filsys fs, char *buf, size_t size,
1791 extern errcode_t ext2fs_dirent_swab_in(ext2_filsys fs, char *buf, int flags);
1792 extern errcode_t ext2fs_dirent_swab_out2(ext2_filsys fs, char *buf, size_t size,
1794 extern errcode_t ext2fs_dirent_swab_out(ext2_filsys fs, char *buf, int flags);
1795 extern void ext2fs_swap_ext_attr(char *to, char *from, int bufsize,
1797 extern void ext2fs_swap_ext_attr_header(struct ext2_ext_attr_header *to_header,
1798 struct ext2_ext_attr_header *from_hdr);
1799 extern void ext2fs_swap_ext_attr_entry(struct ext2_ext_attr_entry *to_entry,
1800 struct ext2_ext_attr_entry *from_entry);
1801 extern void ext2fs_swap_super(struct ext2_super_block * super);
1802 extern void ext2fs_swap_group_desc(struct ext2_group_desc *gdp);
1803 extern void ext2fs_swap_group_desc2(ext2_filsys, struct ext2_group_desc *gdp);
1804 extern void ext2fs_swap_inode_full(ext2_filsys fs, struct ext2_inode_large *t,
1805 struct ext2_inode_large *f, int hostorder,
1807 extern void ext2fs_swap_inode(ext2_filsys fs,struct ext2_inode *t,
1808 struct ext2_inode *f, int hostorder);
1809 extern void ext2fs_swap_mmp(struct mmp_struct *mmp);
1812 extern int ext2fs_open_file(const char *pathname, int flags, mode_t mode);
1813 extern int ext2fs_stat(const char *path, ext2fs_struct_stat *buf);
1814 extern int ext2fs_fstat(int fd, ext2fs_struct_stat *buf);
1817 extern int ext2fs_inode_has_valid_blocks(struct ext2_inode *inode);
1818 extern int ext2fs_inode_has_valid_blocks2(ext2_filsys fs,
1819 struct ext2_inode *inode);
1822 extern int ext2fs_parse_version_string(const char *ver_string);
1823 extern int ext2fs_get_library_version(const char **ver_string,
1824 const char **date_string);
1826 /* write_bb_file.c */
1827 extern errcode_t ext2fs_write_bb_FILE(ext2_badblocks_list bb_list,
1832 /* inline functions */
1833 #ifdef NO_INLINE_FUNCS
1834 extern errcode_t ext2fs_get_mem(unsigned long size, void *ptr);
1835 extern errcode_t ext2fs_get_memzero(unsigned long size, void *ptr);
1836 extern errcode_t ext2fs_get_array(unsigned long count,
1837 unsigned long size, void *ptr);
1838 extern errcode_t ext2fs_get_arrayzero(unsigned long count,
1839 unsigned long size, void *ptr);
1840 extern errcode_t ext2fs_free_mem(void *ptr);
1841 extern errcode_t ext2fs_resize_mem(unsigned long old_size,
1842 unsigned long size, void *ptr);
1843 extern errcode_t ext2fs_resize_array(unsigned long old_count, unsigned long count,
1844 unsigned long size, void *ptr);
1845 extern void ext2fs_mark_super_dirty(ext2_filsys fs);
1846 extern void ext2fs_mark_changed(ext2_filsys fs);
1847 extern int ext2fs_test_changed(ext2_filsys fs);
1848 extern void ext2fs_mark_valid(ext2_filsys fs);
1849 extern void ext2fs_unmark_valid(ext2_filsys fs);
1850 extern int ext2fs_test_valid(ext2_filsys fs);
1851 extern void ext2fs_mark_ib_dirty(ext2_filsys fs);
1852 extern void ext2fs_mark_bb_dirty(ext2_filsys fs);
1853 extern int ext2fs_test_ib_dirty(ext2_filsys fs);
1854 extern int ext2fs_test_bb_dirty(ext2_filsys fs);
1855 extern dgrp_t ext2fs_group_of_blk(ext2_filsys fs, blk_t blk);
1856 extern dgrp_t ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino);
1857 extern blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group);
1858 extern blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group);
1859 extern blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
1860 struct ext2_inode *inode);
1861 extern int ext2fs_htree_intnode_maxrecs(ext2_filsys fs, int blocks);
1862 extern unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b);
1863 extern __u64 ext2fs_div64_ceil(__u64 a, __u64 b);
1864 extern int ext2fs_dirent_name_len(const struct ext2_dir_entry *entry);
1865 extern void ext2fs_dirent_set_name_len(struct ext2_dir_entry *entry, int len);
1866 extern int ext2fs_dirent_file_type(const struct ext2_dir_entry *entry);
1867 extern void ext2fs_dirent_set_file_type(struct ext2_dir_entry *entry, int type);
1868 extern struct ext2_inode *ext2fs_inode(struct ext2_inode_large * large_inode);
1869 extern const struct ext2_inode *ext2fs_const_inode(const struct ext2_inode_large * large_inode);
1870 extern int ext2fs_inodes_per_orphan_block(ext2_filsys fs);
1871 extern struct ext4_orphan_block_tail *ext2fs_orphan_block_tail(ext2_filsys fs,
1876 * The actual inlined functions definitions themselves...
1878 * If NO_INLINE_FUNCS is defined, then we won't try to do inline
1881 #if (defined(INCLUDE_INLINE_FUNCS) || !defined(NO_INLINE_FUNCS))
1882 #ifdef INCLUDE_INLINE_FUNCS
1883 #define _INLINE_ extern
1885 #if (__STDC_VERSION__ >= 199901L)
1886 #define _INLINE_ inline
1889 #define _INLINE_ extern __inline__
1890 #else /* For Watcom C */
1891 #define _INLINE_ extern inline
1892 #endif /* __GNUC__ */
1893 #endif /* __STDC_VERSION__ >= 199901L */
1896 #ifndef EXT2_CUSTOM_MEMORY_ROUTINES
1899 * Allocate memory. The 'ptr' arg must point to a pointer.
1901 _INLINE_ errcode_t ext2fs_get_mem(unsigned long size, void *ptr)
1907 return EXT2_ET_NO_MEMORY;
1908 memcpy(ptr, &pp, sizeof (pp));
1912 _INLINE_ errcode_t ext2fs_get_memzero(unsigned long size, void *ptr)
1918 return EXT2_ET_NO_MEMORY;
1919 memset(pp, 0, size);
1920 memcpy(ptr, &pp, sizeof(pp));
1924 _INLINE_ errcode_t ext2fs_get_array(unsigned long count, unsigned long size,
1927 if (count && (~0UL)/count < size)
1928 return EXT2_ET_NO_MEMORY;
1929 return ext2fs_get_mem(count*size, ptr);
1932 _INLINE_ errcode_t ext2fs_get_arrayzero(unsigned long count,
1933 unsigned long size, void *ptr)
1935 if (count && (~0UL)/count < size)
1936 return EXT2_ET_NO_MEMORY;
1938 return ext2fs_get_memzero((size_t)count * size, ptr);
1942 * Free memory. The 'ptr' arg must point to a pointer.
1944 _INLINE_ errcode_t ext2fs_free_mem(void *ptr)
1948 memcpy(&p, ptr, sizeof(p));
1951 memcpy(ptr, &p, sizeof(p));
1956 * Resize memory. The 'ptr' arg must point to a pointer.
1958 _INLINE_ errcode_t ext2fs_resize_mem(unsigned long EXT2FS_ATTR((unused)) old_size,
1959 unsigned long size, void *ptr)
1963 /* Use "memcpy" for pointer assignments here to avoid problems
1964 * with C99 strict type aliasing rules. */
1965 memcpy(&p, ptr, sizeof(p));
1966 p = realloc(p, size);
1968 return EXT2_ET_NO_MEMORY;
1969 memcpy(ptr, &p, sizeof(p));
1974 * Resize array. The 'ptr' arg must point to a pointer.
1976 _INLINE_ errcode_t ext2fs_resize_array(unsigned long size,
1977 unsigned long old_count,
1978 unsigned long count, void *ptr)
1980 unsigned long old_size;
1983 if (count && (~0UL)/count < size)
1984 return EXT2_ET_NO_MEMORY;
1987 old_size = size * old_count;
1988 retval = ext2fs_resize_mem(old_size, size, ptr);
1992 if (size > old_size) {
1995 memcpy(&p, ptr, sizeof(p));
1996 memset((char *)p + old_size, 0, size - old_size);
1997 memcpy(ptr, &p, sizeof(p));
2002 #endif /* Custom memory routines */
2005 * Mark a filesystem superblock as dirty
2007 _INLINE_ void ext2fs_mark_super_dirty(ext2_filsys fs)
2009 fs->flags |= EXT2_FLAG_DIRTY | EXT2_FLAG_CHANGED;
2013 * Mark a filesystem as changed
2015 _INLINE_ void ext2fs_mark_changed(ext2_filsys fs)
2017 fs->flags |= EXT2_FLAG_CHANGED;
2021 * Check to see if a filesystem has changed
2023 _INLINE_ int ext2fs_test_changed(ext2_filsys fs)
2025 return (fs->flags & EXT2_FLAG_CHANGED);
2029 * Mark a filesystem as valid
2031 _INLINE_ void ext2fs_mark_valid(ext2_filsys fs)
2033 fs->flags |= EXT2_FLAG_VALID;
2037 * Mark a filesystem as NOT valid
2039 _INLINE_ void ext2fs_unmark_valid(ext2_filsys fs)
2041 fs->flags &= ~EXT2_FLAG_VALID;
2045 * Check to see if a filesystem is valid
2047 _INLINE_ int ext2fs_test_valid(ext2_filsys fs)
2049 return (fs->flags & EXT2_FLAG_VALID);
2053 * Mark the inode bitmap as dirty
2055 _INLINE_ void ext2fs_mark_ib_dirty(ext2_filsys fs)
2057 fs->flags |= EXT2_FLAG_IB_DIRTY | EXT2_FLAG_CHANGED;
2061 * Mark the block bitmap as dirty
2063 _INLINE_ void ext2fs_mark_bb_dirty(ext2_filsys fs)
2065 fs->flags |= EXT2_FLAG_BB_DIRTY | EXT2_FLAG_CHANGED;
2069 * Check to see if a filesystem's inode bitmap is dirty
2071 _INLINE_ int ext2fs_test_ib_dirty(ext2_filsys fs)
2073 return (fs->flags & EXT2_FLAG_IB_DIRTY);
2077 * Check to see if a filesystem's block bitmap is dirty
2079 _INLINE_ int ext2fs_test_bb_dirty(ext2_filsys fs)
2081 return (fs->flags & EXT2_FLAG_BB_DIRTY);
2085 * Return the group # of a block
2087 _INLINE_ dgrp_t ext2fs_group_of_blk(ext2_filsys fs, blk_t blk)
2089 return ext2fs_group_of_blk2(fs, blk);
2092 * Return the group # of an inode number
2094 _INLINE_ dgrp_t ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino)
2096 return (ino - 1) / fs->super->s_inodes_per_group;
2100 * Return the first block (inclusive) in a group
2102 _INLINE_ blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group)
2104 return (blk_t) ext2fs_group_first_block2(fs, group);
2108 * Return the last block (inclusive) in a group
2110 _INLINE_ blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group)
2112 return (blk_t) ext2fs_group_last_block2(fs, group);
2115 _INLINE_ blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
2116 struct ext2_inode *inode)
2118 return (blk_t) ext2fs_inode_data_blocks2(fs, inode);
2121 _INLINE_ int ext2fs_htree_intnode_maxrecs(ext2_filsys fs, int blocks)
2125 if ((EXT2_SB(fs->super)->s_feature_ro_compat &
2126 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM) != 0)
2127 csum_size = sizeof(struct ext2_dx_tail);
2128 return blocks * ((fs->blocksize - (8 + csum_size)) /
2129 sizeof(struct ext2_dx_entry));
2133 * This is an efficient, overflow safe way of calculating ceil((1.0 * a) / b)
2135 _INLINE_ unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b)
2139 return ((a - 1) / b) + 1;
2142 _INLINE_ __u64 ext2fs_div64_ceil(__u64 a, __u64 b)
2146 return ((a - 1) / b) + 1;
2149 _INLINE_ int ext2fs_dirent_name_len(const struct ext2_dir_entry *entry)
2151 return entry->name_len & 0xff;
2154 _INLINE_ void ext2fs_dirent_set_name_len(struct ext2_dir_entry *entry, int len)
2156 entry->name_len = (entry->name_len & 0xff00) | (len & 0xff);
2159 _INLINE_ int ext2fs_dirent_file_type(const struct ext2_dir_entry *entry)
2161 return entry->name_len >> 8;
2164 _INLINE_ void ext2fs_dirent_set_file_type(struct ext2_dir_entry *entry, int type)
2166 entry->name_len = (entry->name_len & 0xff) | (type << 8);
2169 _INLINE_ struct ext2_inode *ext2fs_inode(struct ext2_inode_large * large_inode)
2171 /* It is always safe to convert large inode to a small inode */
2172 return (struct ext2_inode *) large_inode;
2175 _INLINE_ const struct ext2_inode *
2176 ext2fs_const_inode(const struct ext2_inode_large * large_inode)
2178 /* It is always safe to convert large inode to a small inode */
2179 return (const struct ext2_inode *) large_inode;
2182 _INLINE_ int ext2fs_inodes_per_orphan_block(ext2_filsys fs)
2184 return (fs->blocksize - sizeof(struct ext4_orphan_block_tail)) /
2188 _INLINE_ struct ext4_orphan_block_tail *
2189 ext2fs_orphan_block_tail(ext2_filsys fs, char *buf)
2191 return (struct ext4_orphan_block_tail *)(buf + fs->blocksize -
2192 sizeof(struct ext4_orphan_block_tail));
2198 /* htree levels for ext4 */
2199 #define EXT4_HTREE_LEVEL_COMPAT 2
2200 #define EXT4_HTREE_LEVEL 3
2202 static inline unsigned int ext2_dir_htree_level(ext2_filsys fs)
2204 if (ext2fs_has_feature_largedir(fs->super))
2205 return EXT4_HTREE_LEVEL;
2207 return EXT4_HTREE_LEVEL_COMPAT;
2214 #endif /* _EXT2FS_EXT2FS_H */