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 #define EXT2FS_NO_TDB_UNUSED
24 #define EXT2FS_NO_TDB_UNUSED EXT2FS_ATTR((unused))
32 * Non-GNU C compilers won't necessarily understand inline
34 #if (!defined(__GNUC__) && !defined(__WATCOMC__))
35 #define NO_INLINE_FUNCS
39 * Where the master copy of the superblock is located, and how big
40 * superblocks are supposed to be. We define SUPERBLOCK_SIZE because
41 * the size of the superblock structure is not necessarily trustworthy
42 * (some versions have the padding set up so that the superblock is
45 #define SUPERBLOCK_OFFSET 1024
46 #define SUPERBLOCK_SIZE 1024
48 #define UUID_STR_SIZE 37
51 * The last ext2fs revision level that this version of the library is
54 #define EXT2_LIB_CURRENT_REV EXT2_DYNAMIC_REV
56 #ifdef HAVE_SYS_TYPES_H
57 #include <sys/types.h>
66 #if EXT2_FLAT_INCLUDES
69 #include "ext3_extents.h"
71 #include <ext2fs/ext2_types.h>
72 #include <ext2fs/ext2_fs.h>
73 #include <ext2fs/ext3_extents.h>
74 #endif /* EXT2_FLAT_INCLUDES */
76 typedef __u32 __bitwise ext2_ino_t;
77 typedef __u32 __bitwise blk_t;
78 typedef __u64 __bitwise blk64_t;
79 typedef __u32 __bitwise dgrp_t;
80 typedef __u32 __bitwise ext2_off_t;
81 typedef __u64 __bitwise ext2_off64_t;
82 typedef __s64 __bitwise e2_blkcnt_t;
83 typedef __u32 __bitwise ext2_dirhash_t;
85 #if EXT2_FLAT_INCLUDES
89 #include "ext2_ext_attr.h"
91 #include <et/com_err.h>
92 #include <ext2fs/ext2_io.h>
93 #include <ext2fs/ext2_err.h>
94 #include <ext2fs/ext2_ext_attr.h>
100 * Portability help for Microsoft Visual C++
103 #define EXT2_QSORT_TYPE int __cdecl
105 #define EXT2_QSORT_TYPE int
108 typedef struct struct_ext2_filsys *ext2_filsys;
110 #define EXT2FS_MARK_ERROR 0
111 #define EXT2FS_UNMARK_ERROR 1
112 #define EXT2FS_TEST_ERROR 2
114 struct ext2fs_struct_generic_bitmap_base {
119 typedef struct ext2fs_struct_generic_bitmap_base *ext2fs_generic_bitmap;
120 typedef struct ext2fs_struct_generic_bitmap_base *ext2fs_inode_bitmap;
121 typedef struct ext2fs_struct_generic_bitmap_base *ext2fs_block_bitmap;
123 #define EXT2_FIRST_INODE(s) EXT2_FIRST_INO(s)
127 * Badblocks list definitions
130 typedef struct ext2_struct_u32_list *ext2_badblocks_list;
131 typedef struct ext2_struct_u32_iterate *ext2_badblocks_iterate;
133 typedef struct ext2_struct_u32_list *ext2_u32_list;
134 typedef struct ext2_struct_u32_iterate *ext2_u32_iterate;
137 typedef struct ext2_struct_u32_list *badblocks_list;
138 typedef struct ext2_struct_u32_iterate *badblocks_iterate;
140 #define BADBLOCKS_FLAG_DIRTY 1
143 * ext2_dblist structure and abstractions (see dblist.c)
145 struct ext2_db_entry2 {
148 e2_blkcnt_t blockcnt;
151 /* Ye Olde 32-bit version */
152 struct ext2_db_entry {
158 typedef struct ext2_struct_dblist *ext2_dblist;
160 #define DBLIST_ABORT 1
163 * ext2_fileio definitions
166 #define EXT2_FILE_WRITE 0x0001
167 #define EXT2_FILE_CREATE 0x0002
169 #define EXT2_FILE_MASK 0x00FF
171 #define EXT2_FILE_BUF_DIRTY 0x4000
172 #define EXT2_FILE_BUF_VALID 0x2000
174 typedef struct ext2_file *ext2_file_t;
176 #define EXT2_SEEK_SET 0
177 #define EXT2_SEEK_CUR 1
178 #define EXT2_SEEK_END 2
183 struct ext2fs_nls_table {
185 const struct ext2fs_nls_ops *ops;
188 struct ext2fs_nls_ops {
189 int (*casefold)(const struct ext2fs_nls_table *charset,
190 const unsigned char *str, size_t len,
191 unsigned char *dest, size_t dlen);
195 * Flags for the ext2_filsys structure and for ext2fs_open()
197 #define EXT2_FLAG_RW 0x01
198 #define EXT2_FLAG_CHANGED 0x02
199 #define EXT2_FLAG_DIRTY 0x04
200 #define EXT2_FLAG_VALID 0x08
201 #define EXT2_FLAG_IB_DIRTY 0x10
202 #define EXT2_FLAG_BB_DIRTY 0x20
203 #define EXT2_FLAG_SWAP_BYTES 0x40
204 #define EXT2_FLAG_SWAP_BYTES_READ 0x80
205 #define EXT2_FLAG_SWAP_BYTES_WRITE 0x100
206 #define EXT2_FLAG_MASTER_SB_ONLY 0x200
207 #define EXT2_FLAG_FORCE 0x400
208 #define EXT2_FLAG_SUPER_ONLY 0x800
209 #define EXT2_FLAG_JOURNAL_DEV_OK 0x1000
210 #define EXT2_FLAG_IMAGE_FILE 0x2000
211 #define EXT2_FLAG_EXCLUSIVE 0x4000
212 #define EXT2_FLAG_SOFTSUPP_FEATURES 0x8000
213 #define EXT2_FLAG_NOFREE_ON_ERROR 0x10000
214 #define EXT2_FLAG_64BITS 0x20000
215 #define EXT2_FLAG_PRINT_PROGRESS 0x40000
216 #define EXT2_FLAG_DIRECT_IO 0x80000
217 #define EXT2_FLAG_SKIP_MMP 0x100000
218 #define EXT2_FLAG_IGNORE_CSUM_ERRORS 0x200000
219 #define EXT2_FLAG_SHARE_DUP 0x400000
220 #define EXT2_FLAG_IGNORE_SB_ERRORS 0x800000
223 * Special flag in the ext2 inode i_flag field that means that this is
224 * a new inode. (So that ext2_write_inode() can clear extra fields.)
226 #define EXT2_NEW_INODE_FL 0x80000000
229 * Flags for mkjournal
231 #define EXT2_MKJOURNAL_V1_SUPER 0x0000001 /* create V1 superblock (deprecated) */
232 #define EXT2_MKJOURNAL_LAZYINIT 0x0000002 /* don't zero journal inode before use*/
233 #define EXT2_MKJOURNAL_NO_MNT_CHECK 0x0000004 /* don't check mount status */
235 struct blk_alloc_ctx;
236 struct opaque_ext2_group_desc;
238 struct struct_ext2_filsys {
243 struct ext2_super_block * super;
244 unsigned int blocksize;
246 dgrp_t group_desc_count;
247 unsigned long desc_blocks;
248 struct opaque_ext2_group_desc * group_desc;
249 unsigned int inode_blocks_per_group;
250 ext2fs_inode_bitmap inode_map;
251 ext2fs_block_bitmap block_map;
252 /* XXX FIXME-64: not 64-bit safe, but not used? */
253 errcode_t (*get_blocks)(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
254 errcode_t (*check_directory)(ext2_filsys fs, ext2_ino_t ino);
255 errcode_t (*write_bitmaps)(ext2_filsys fs);
256 errcode_t (*read_inode)(ext2_filsys fs, ext2_ino_t ino,
257 struct ext2_inode *inode);
258 errcode_t (*write_inode)(ext2_filsys fs, ext2_ino_t ino,
259 struct ext2_inode *inode);
260 ext2_badblocks_list badblocks;
262 __u32 stride; /* for mke2fs */
263 struct ext2_super_block * orig_super;
264 struct ext2_image_hdr * image_header;
267 int cluster_ratio_bits;
268 __u16 default_bitmap_type;
271 * Reserved for future expansion
276 * Reserved for the use of the calling application.
283 struct ext2_inode_cache *icache;
287 * More callback functions
289 errcode_t (*get_alloc_block)(ext2_filsys fs, blk64_t goal,
291 errcode_t (*get_alloc_block2)(ext2_filsys fs, blk64_t goal,
292 blk64_t *ret, struct blk_alloc_ctx *ctx);
293 void (*block_alloc_stats)(ext2_filsys fs, blk64_t blk, int inuse);
296 * Buffers for Multiple mount protection(MMP) block.
303 * Time at which e2fsck last updated the MMP block.
305 long mmp_last_written;
307 /* progress operation functions */
308 struct ext2fs_progress_ops *progress_ops;
310 /* Precomputed FS UUID checksum for seeding other checksums */
313 io_channel journal_io;
316 /* New block range allocation hooks */
317 errcode_t (*new_range)(ext2_filsys fs, int flags, blk64_t goal,
318 blk64_t len, blk64_t *pblk, blk64_t *plen);
319 void (*block_alloc_stats_range)(ext2_filsys fs, blk64_t blk, blk_t num,
322 /* hashmap for SHA of data blocks */
323 struct ext2fs_hashmap* block_sha_map;
325 const struct ext2fs_nls_table *encoding;
328 #if EXT2_FLAT_INCLUDES
329 #include "e2_bitops.h"
331 #include <ext2fs/bitops.h>
335 * 64-bit bitmap backend types
337 #define EXT2FS_BMAP64_BITARRAY 1
338 #define EXT2FS_BMAP64_RBTREE 2
339 #define EXT2FS_BMAP64_AUTODIR 3
342 * Return flags for the block iterator functions
344 #define BLOCK_CHANGED 1
345 #define BLOCK_ABORT 2
346 #define BLOCK_ERROR 4
347 #define BLOCK_INLINE_DATA_CHANGED 8
350 * Block interate flags
352 * BLOCK_FLAG_APPEND, or BLOCK_FLAG_HOLE, indicates that the interator
353 * function should be called on blocks where the block number is zero.
354 * This is used by ext2fs_expand_dir() to be able to add a new block
355 * to an inode. It can also be used for programs that want to be able
356 * to deal with files that contain "holes".
358 * BLOCK_FLAG_DEPTH_TRAVERSE indicates that the iterator function for
359 * the indirect, doubly indirect, etc. blocks should be called after
360 * all of the blocks contained in the indirect blocks are processed.
361 * This is useful if you are going to be deallocating blocks from an
364 * BLOCK_FLAG_DATA_ONLY indicates that the iterator function should be
365 * called for data blocks only.
367 * BLOCK_FLAG_READ_ONLY is a promise by the caller that it will not
368 * modify returned block number.
370 * BLOCK_FLAG_NO_LARGE is for internal use only. It informs
371 * ext2fs_block_iterate2 that large files won't be accepted.
373 #define BLOCK_FLAG_APPEND 1
374 #define BLOCK_FLAG_HOLE 1
375 #define BLOCK_FLAG_DEPTH_TRAVERSE 2
376 #define BLOCK_FLAG_DATA_ONLY 4
377 #define BLOCK_FLAG_READ_ONLY 8
379 #define BLOCK_FLAG_NO_LARGE 0x1000
382 * Magic "block count" return values for the block iterator function.
384 #define BLOCK_COUNT_IND (-1)
385 #define BLOCK_COUNT_DIND (-2)
386 #define BLOCK_COUNT_TIND (-3)
387 #define BLOCK_COUNT_TRANSLATOR (-4)
389 #define BLOCK_ALLOC_UNKNOWN 0
390 #define BLOCK_ALLOC_DATA 1
391 #define BLOCK_ALLOC_METADATA 2
393 struct blk_alloc_ctx {
395 struct ext2_inode *inode;
402 * Flags for ext2fs_move_blocks
404 #define EXT2_BMOVE_GET_DBLIST 0x0001
405 #define EXT2_BMOVE_DEBUG 0x0002
409 * Generic (non-filesystem layout specific) extents structure
412 #define EXT2_EXTENT_FLAGS_LEAF 0x0001
413 #define EXT2_EXTENT_FLAGS_UNINIT 0x0002
414 #define EXT2_EXTENT_FLAGS_SECOND_VISIT 0x0004
416 struct ext2fs_extent {
417 blk64_t e_pblk; /* first physical block */
418 blk64_t e_lblk; /* first logical block extent covers */
419 __u32 e_len; /* number of blocks covered by extent */
420 __u32 e_flags; /* extent flags */
423 typedef struct ext2_extent_handle *ext2_extent_handle_t;
424 typedef struct ext2_extent_path *ext2_extent_path_t;
427 * Flags used by ext2fs_extent_get()
429 #define EXT2_EXTENT_CURRENT 0x0000
430 #define EXT2_EXTENT_MOVE_MASK 0x000F
431 #define EXT2_EXTENT_ROOT 0x0001
432 #define EXT2_EXTENT_LAST_LEAF 0x0002
433 #define EXT2_EXTENT_FIRST_SIB 0x0003
434 #define EXT2_EXTENT_LAST_SIB 0x0004
435 #define EXT2_EXTENT_NEXT_SIB 0x0005
436 #define EXT2_EXTENT_PREV_SIB 0x0006
437 #define EXT2_EXTENT_NEXT_LEAF 0x0007
438 #define EXT2_EXTENT_PREV_LEAF 0x0008
439 #define EXT2_EXTENT_NEXT 0x0009
440 #define EXT2_EXTENT_PREV 0x000A
441 #define EXT2_EXTENT_UP 0x000B
442 #define EXT2_EXTENT_DOWN 0x000C
443 #define EXT2_EXTENT_DOWN_AND_LAST 0x000D
446 * Flags used by ext2fs_extent_insert()
448 #define EXT2_EXTENT_INSERT_AFTER 0x0001 /* insert after handle loc'n */
449 #define EXT2_EXTENT_INSERT_NOSPLIT 0x0002 /* insert may not cause split */
452 * Flags used by ext2fs_extent_delete()
454 #define EXT2_EXTENT_DELETE_KEEP_EMPTY 0x001 /* keep node if last extent gone */
457 * Flags used by ext2fs_extent_set_bmap()
459 #define EXT2_EXTENT_SET_BMAP_UNINIT 0x0001
462 * Data structure returned by ext2fs_extent_get_info()
464 struct ext2_extent_info {
474 __u32 max_uninit_len;
478 * Flags for directory block reading and writing functions
480 #define EXT2_DIRBLOCK_V2_STRUCT 0x0001
483 * Return flags for the directory iterator functions
485 #define DIRENT_CHANGED 1
486 #define DIRENT_ABORT 2
487 #define DIRENT_ERROR 3
490 * Directory iterator flags
493 #define DIRENT_FLAG_INCLUDE_EMPTY 1
494 #define DIRENT_FLAG_INCLUDE_REMOVED 2
495 #define DIRENT_FLAG_INCLUDE_CSUM 4
496 #define DIRENT_FLAG_INCLUDE_INLINE_DATA 8
498 #define DIRENT_DOT_FILE 1
499 #define DIRENT_DOT_DOT_FILE 2
500 #define DIRENT_OTHER_FILE 3
501 #define DIRENT_DELETED_FILE 4
502 #define DIRENT_CHECKSUM 5
505 * Inode scan definitions
507 typedef struct ext2_struct_inode_scan *ext2_inode_scan;
512 #define EXT2_SF_CHK_BADBLOCKS 0x0001
513 #define EXT2_SF_BAD_INODE_BLK 0x0002
514 #define EXT2_SF_BAD_EXTRA_BYTES 0x0004
515 #define EXT2_SF_SKIP_MISSING_ITABLE 0x0008
516 #define EXT2_SF_DO_LAZY 0x0010
517 #define EXT2_SF_WARN_GARBAGE_INODES 0x0020
520 * ext2fs_check_if_mounted flags
522 #define EXT2_MF_MOUNTED 1
523 #define EXT2_MF_ISROOT 2
524 #define EXT2_MF_READONLY 4
525 #define EXT2_MF_SWAP 8
526 #define EXT2_MF_BUSY 16
529 * Ext2/linux mode flags. We define them here so that we don't need
530 * to depend on the OS's sys/stat.h, since we may be compiling on a
533 #define LINUX_S_IFMT 00170000
534 #define LINUX_S_IFSOCK 0140000
535 #define LINUX_S_IFLNK 0120000
536 #define LINUX_S_IFREG 0100000
537 #define LINUX_S_IFBLK 0060000
538 #define LINUX_S_IFDIR 0040000
539 #define LINUX_S_IFCHR 0020000
540 #define LINUX_S_IFIFO 0010000
541 #define LINUX_S_ISUID 0004000
542 #define LINUX_S_ISGID 0002000
543 #define LINUX_S_ISVTX 0001000
545 #define LINUX_S_IRWXU 00700
546 #define LINUX_S_IRUSR 00400
547 #define LINUX_S_IWUSR 00200
548 #define LINUX_S_IXUSR 00100
550 #define LINUX_S_IRWXG 00070
551 #define LINUX_S_IRGRP 00040
552 #define LINUX_S_IWGRP 00020
553 #define LINUX_S_IXGRP 00010
555 #define LINUX_S_IRWXO 00007
556 #define LINUX_S_IROTH 00004
557 #define LINUX_S_IWOTH 00002
558 #define LINUX_S_IXOTH 00001
560 #define LINUX_S_ISLNK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFLNK)
561 #define LINUX_S_ISREG(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFREG)
562 #define LINUX_S_ISDIR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFDIR)
563 #define LINUX_S_ISCHR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFCHR)
564 #define LINUX_S_ISBLK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFBLK)
565 #define LINUX_S_ISFIFO(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFIFO)
566 #define LINUX_S_ISSOCK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFSOCK)
569 * ext2 size of an inode
571 #define EXT2_I_SIZE(i) ((i)->i_size | ((__u64) (i)->i_size_high << 32))
574 * ext2_icount_t abstraction
576 #define EXT2_ICOUNT_OPT_INCREMENT 0x01
577 #define EXT2_ICOUNT_OPT_FULLMAP 0x02
579 typedef struct ext2_icount *ext2_icount_t;
582 * Flags for ext2fs_bmap
584 #define BMAP_ALLOC 0x0001
585 #define BMAP_SET 0x0002
586 #define BMAP_UNINIT 0x0004
587 #define BMAP_ZERO 0x0008
590 * Returned flags from ext2fs_bmap
592 #define BMAP_RET_UNINIT 0x0001
595 * Flags for ext2fs_read_inode2
597 #define READ_INODE_NOCSUM 0x0001
600 * Flags for ext2fs_write_inode2
602 #define WRITE_INODE_NOCSUM 0x0001
605 * Flags for imager.c functions
607 #define IMAGER_FLAG_INODEMAP 1
608 #define IMAGER_FLAG_SPARSEWRITE 2
611 * For checking structure magic numbers...
614 #define EXT2_CHECK_MAGIC(struct, code) \
615 if ((struct)->magic != (code)) return (code)
618 * Features supported by this version of the library
620 #define EXT2_LIB_FEATURE_COMPAT_SUPP (EXT2_FEATURE_COMPAT_DIR_PREALLOC|\
621 EXT2_FEATURE_COMPAT_IMAGIC_INODES|\
622 EXT3_FEATURE_COMPAT_HAS_JOURNAL|\
623 EXT2_FEATURE_COMPAT_RESIZE_INODE|\
624 EXT2_FEATURE_COMPAT_DIR_INDEX|\
625 EXT2_FEATURE_COMPAT_EXT_ATTR|\
626 EXT4_FEATURE_COMPAT_SPARSE_SUPER2)
629 #define EXT4_LIB_INCOMPAT_MMP EXT4_FEATURE_INCOMPAT_MMP
631 #define EXT4_LIB_INCOMPAT_MMP (0)
634 #define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\
635 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\
636 EXT2_FEATURE_INCOMPAT_META_BG|\
637 EXT3_FEATURE_INCOMPAT_RECOVER|\
638 EXT3_FEATURE_INCOMPAT_EXTENTS|\
639 EXT4_FEATURE_INCOMPAT_FLEX_BG|\
640 EXT4_FEATURE_INCOMPAT_EA_INODE|\
641 EXT4_LIB_INCOMPAT_MMP|\
642 EXT4_FEATURE_INCOMPAT_64BIT|\
643 EXT4_FEATURE_INCOMPAT_INLINE_DATA|\
644 EXT4_FEATURE_INCOMPAT_ENCRYPT|\
645 EXT4_FEATURE_INCOMPAT_CASEFOLD|\
646 EXT4_FEATURE_INCOMPAT_CSUM_SEED|\
647 EXT4_FEATURE_INCOMPAT_LARGEDIR)
649 #define EXT2_LIB_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|\
650 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|\
651 EXT2_FEATURE_RO_COMPAT_LARGE_FILE|\
652 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|\
653 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|\
654 EXT4_FEATURE_RO_COMPAT_GDT_CSUM|\
655 EXT4_FEATURE_RO_COMPAT_BIGALLOC|\
656 EXT4_FEATURE_RO_COMPAT_QUOTA|\
657 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM|\
658 EXT4_FEATURE_RO_COMPAT_READONLY |\
659 EXT4_FEATURE_RO_COMPAT_PROJECT |\
660 EXT4_FEATURE_RO_COMPAT_SHARED_BLOCKS |\
661 EXT4_FEATURE_RO_COMPAT_VERITY)
664 * These features are only allowed if EXT2_FLAG_SOFTSUPP_FEATURES is passed
667 #define EXT2_LIB_SOFTSUPP_INCOMPAT (0)
668 #define EXT2_LIB_SOFTSUPP_RO_COMPAT (EXT4_FEATURE_RO_COMPAT_REPLICA)
671 /* Translate a block number to a cluster number */
672 #define EXT2FS_CLUSTER_RATIO(fs) (1 << (fs)->cluster_ratio_bits)
673 #define EXT2FS_CLUSTER_MASK(fs) (EXT2FS_CLUSTER_RATIO(fs) - 1)
674 #define EXT2FS_B2C(fs, blk) ((blk) >> (fs)->cluster_ratio_bits)
675 /* Translate a cluster number to a block number */
676 #define EXT2FS_C2B(fs, cluster) ((cluster) << (fs)->cluster_ratio_bits)
677 /* Translate # of blks to # of clusters */
678 #define EXT2FS_NUM_B2C(fs, blks) (((blks) + EXT2FS_CLUSTER_MASK(fs)) >> \
679 (fs)->cluster_ratio_bits)
681 #if defined(HAVE_FSTAT64) && !defined(__OSX_AVAILABLE_BUT_DEPRECATED)
682 typedef struct stat64 ext2fs_struct_stat;
684 typedef struct stat ext2fs_struct_stat;
688 * For ext2fs_close2() and ext2fs_flush2(), this flag allows you to
689 * avoid the fsync call.
691 #define EXT2_FLAG_FLUSH_NO_SYNC 1
694 * Modify and iterate extended attributes
696 struct ext2_xattr_handle;
697 #define XATTR_ABORT 1
698 #define XATTR_CHANGED 2
701 * function prototypes
703 static inline int ext2fs_has_group_desc_csum(ext2_filsys fs)
705 return ext2fs_has_feature_metadata_csum(fs->super) ||
706 ext2fs_has_feature_gdt_csum(fs->super);
709 /* The LARGE_FILE feature should be set if we have stored files 2GB+ in size */
710 static inline int ext2fs_needs_large_file_feature(unsigned long long file_size)
712 return file_size >= 0x80000000ULL;
716 extern void ext2fs_clear_block_uninit(ext2_filsys fs, dgrp_t group);
717 extern errcode_t ext2fs_new_inode(ext2_filsys fs, ext2_ino_t dir, int mode,
718 ext2fs_inode_bitmap map, ext2_ino_t *ret);
719 extern errcode_t ext2fs_new_block(ext2_filsys fs, blk_t goal,
720 ext2fs_block_bitmap map, blk_t *ret);
721 extern errcode_t ext2fs_new_block2(ext2_filsys fs, blk64_t goal,
722 ext2fs_block_bitmap map, blk64_t *ret);
723 extern errcode_t ext2fs_new_block3(ext2_filsys fs, blk64_t goal,
724 ext2fs_block_bitmap map, blk64_t *ret,
725 struct blk_alloc_ctx *ctx);
726 extern errcode_t ext2fs_get_free_blocks(ext2_filsys fs, blk_t start,
727 blk_t finish, int num,
728 ext2fs_block_bitmap map,
730 extern errcode_t ext2fs_get_free_blocks2(ext2_filsys fs, blk64_t start,
731 blk64_t finish, int num,
732 ext2fs_block_bitmap map,
734 extern errcode_t ext2fs_alloc_block(ext2_filsys fs, blk_t goal,
735 char *block_buf, blk_t *ret);
736 extern errcode_t ext2fs_alloc_block2(ext2_filsys fs, blk64_t goal,
737 char *block_buf, blk64_t *ret);
738 extern errcode_t ext2fs_alloc_block3(ext2_filsys fs, blk64_t goal,
739 char *block_buf, blk64_t *ret,
740 struct blk_alloc_ctx *ctx);
742 extern void ext2fs_set_alloc_block_callback(ext2_filsys fs,
743 errcode_t (*func)(ext2_filsys fs,
746 errcode_t (**old)(ext2_filsys fs,
749 blk64_t ext2fs_find_inode_goal(ext2_filsys fs, ext2_ino_t ino,
750 struct ext2_inode *inode, blk64_t lblk);
751 extern void ext2fs_set_new_range_callback(ext2_filsys fs,
752 errcode_t (*func)(ext2_filsys fs, int flags, blk64_t goal,
753 blk64_t len, blk64_t *pblk, blk64_t *plen),
754 errcode_t (**old)(ext2_filsys fs, int flags, blk64_t goal,
755 blk64_t len, blk64_t *pblk, blk64_t *plen));
756 extern void ext2fs_set_block_alloc_stats_range_callback(ext2_filsys fs,
757 void (*func)(ext2_filsys fs, blk64_t blk,
758 blk_t num, int inuse),
759 void (**old)(ext2_filsys fs, blk64_t blk,
760 blk_t num, int inuse));
761 #define EXT2_NEWRANGE_FIXED_GOAL (0x1)
762 #define EXT2_NEWRANGE_MIN_LENGTH (0x2)
763 #define EXT2_NEWRANGE_ALL_FLAGS (0x3)
764 errcode_t ext2fs_new_range(ext2_filsys fs, int flags, blk64_t goal,
765 blk64_t len, ext2fs_block_bitmap map, blk64_t *pblk,
767 #define EXT2_ALLOCRANGE_FIXED_GOAL (0x1)
768 #define EXT2_ALLOCRANGE_ZERO_BLOCKS (0x2)
769 #define EXT2_ALLOCRANGE_ALL_FLAGS (0x3)
770 errcode_t ext2fs_alloc_range(ext2_filsys fs, int flags, blk64_t goal,
771 blk_t len, blk64_t *ret);
774 extern int ext2fs_reserve_super_and_bgd(ext2_filsys fs,
776 ext2fs_block_bitmap bmap);
777 extern void ext2fs_set_block_alloc_stats_callback(ext2_filsys fs,
778 void (*func)(ext2_filsys fs,
781 void (**old)(ext2_filsys fs,
786 void ext2fs_inode_alloc_stats(ext2_filsys fs, ext2_ino_t ino, int inuse);
787 void ext2fs_inode_alloc_stats2(ext2_filsys fs, ext2_ino_t ino,
788 int inuse, int isdir);
789 void ext2fs_block_alloc_stats(ext2_filsys fs, blk_t blk, int inuse);
790 void ext2fs_block_alloc_stats2(ext2_filsys fs, blk64_t blk, int inuse);
791 void ext2fs_block_alloc_stats_range(ext2_filsys fs, blk64_t blk,
792 blk_t num, int inuse);
795 extern errcode_t ext2fs_allocate_tables(ext2_filsys fs);
796 extern errcode_t ext2fs_allocate_group_table(ext2_filsys fs, dgrp_t group,
797 ext2fs_block_bitmap bmap);
800 extern errcode_t ext2fs_u32_list_create(ext2_u32_list *ret, int size);
801 extern errcode_t ext2fs_u32_list_add(ext2_u32_list bb, __u32 blk);
802 extern int ext2fs_u32_list_find(ext2_u32_list bb, __u32 blk);
803 extern int ext2fs_u32_list_test(ext2_u32_list bb, blk_t blk);
804 extern errcode_t ext2fs_u32_list_iterate_begin(ext2_u32_list bb,
805 ext2_u32_iterate *ret);
806 extern int ext2fs_u32_list_iterate(ext2_u32_iterate iter, blk_t *blk);
807 extern void ext2fs_u32_list_iterate_end(ext2_u32_iterate iter);
808 extern errcode_t ext2fs_u32_copy(ext2_u32_list src, ext2_u32_list *dest);
809 extern int ext2fs_u32_list_equal(ext2_u32_list bb1, ext2_u32_list bb2);
811 extern errcode_t ext2fs_badblocks_list_create(ext2_badblocks_list *ret,
813 extern errcode_t ext2fs_badblocks_list_add(ext2_badblocks_list bb,
815 extern int ext2fs_badblocks_list_test(ext2_badblocks_list bb,
817 extern int ext2fs_u32_list_del(ext2_u32_list bb, __u32 blk);
818 extern void ext2fs_badblocks_list_del(ext2_u32_list bb, __u32 blk);
820 ext2fs_badblocks_list_iterate_begin(ext2_badblocks_list bb,
821 ext2_badblocks_iterate *ret);
822 extern int ext2fs_badblocks_list_iterate(ext2_badblocks_iterate iter,
824 extern void ext2fs_badblocks_list_iterate_end(ext2_badblocks_iterate iter);
825 extern errcode_t ext2fs_badblocks_copy(ext2_badblocks_list src,
826 ext2_badblocks_list *dest);
827 extern int ext2fs_badblocks_equal(ext2_badblocks_list bb1,
828 ext2_badblocks_list bb2);
829 extern int ext2fs_u32_list_count(ext2_u32_list bb);
832 extern errcode_t badblocks_list_create(badblocks_list *ret, int size);
833 extern errcode_t badblocks_list_add(badblocks_list bb, blk_t blk);
834 extern int badblocks_list_test(badblocks_list bb, blk_t blk);
835 extern errcode_t badblocks_list_iterate_begin(badblocks_list bb,
836 badblocks_iterate *ret);
837 extern int badblocks_list_iterate(badblocks_iterate iter, blk_t *blk);
838 extern void badblocks_list_iterate_end(badblocks_iterate iter);
839 extern void badblocks_list_free(badblocks_list bb);
842 extern errcode_t ext2fs_update_bb_inode(ext2_filsys fs,
843 ext2_badblocks_list bb_list);
846 extern void ext2fs_free_block_bitmap(ext2fs_block_bitmap bitmap);
847 extern void ext2fs_free_inode_bitmap(ext2fs_inode_bitmap bitmap);
848 extern errcode_t ext2fs_copy_bitmap(ext2fs_generic_bitmap src,
849 ext2fs_generic_bitmap *dest);
850 extern errcode_t ext2fs_write_inode_bitmap(ext2_filsys fs);
851 extern errcode_t ext2fs_write_block_bitmap (ext2_filsys fs);
852 extern errcode_t ext2fs_read_inode_bitmap (ext2_filsys fs);
853 extern errcode_t ext2fs_read_block_bitmap(ext2_filsys fs);
854 extern errcode_t ext2fs_allocate_block_bitmap(ext2_filsys fs,
856 ext2fs_block_bitmap *ret);
857 extern errcode_t ext2fs_allocate_subcluster_bitmap(ext2_filsys fs,
859 ext2fs_block_bitmap *ret);
860 extern int ext2fs_get_bitmap_granularity(ext2fs_block_bitmap bitmap);
861 extern errcode_t ext2fs_allocate_inode_bitmap(ext2_filsys fs,
863 ext2fs_inode_bitmap *ret);
864 extern errcode_t ext2fs_fudge_inode_bitmap_end(ext2fs_inode_bitmap bitmap,
865 ext2_ino_t end, ext2_ino_t *oend);
866 extern errcode_t ext2fs_fudge_block_bitmap_end(ext2fs_block_bitmap bitmap,
867 blk_t end, blk_t *oend);
868 extern errcode_t ext2fs_fudge_block_bitmap_end2(ext2fs_block_bitmap bitmap,
869 blk64_t end, blk64_t *oend);
870 extern void ext2fs_clear_inode_bitmap(ext2fs_inode_bitmap bitmap);
871 extern void ext2fs_clear_block_bitmap(ext2fs_block_bitmap bitmap);
872 extern errcode_t ext2fs_read_bitmaps(ext2_filsys fs);
873 extern errcode_t ext2fs_write_bitmaps(ext2_filsys fs);
874 extern errcode_t ext2fs_resize_inode_bitmap(__u32 new_end, __u32 new_real_end,
875 ext2fs_inode_bitmap bmap);
876 extern errcode_t ext2fs_resize_inode_bitmap2(__u64 new_end,
878 ext2fs_inode_bitmap bmap);
879 extern errcode_t ext2fs_resize_block_bitmap(__u32 new_end, __u32 new_real_end,
880 ext2fs_block_bitmap bmap);
881 extern errcode_t ext2fs_resize_block_bitmap2(__u64 new_end,
883 ext2fs_block_bitmap bmap);
884 extern errcode_t ext2fs_compare_block_bitmap(ext2fs_block_bitmap bm1,
885 ext2fs_block_bitmap bm2);
886 extern errcode_t ext2fs_compare_inode_bitmap(ext2fs_inode_bitmap bm1,
887 ext2fs_inode_bitmap bm2);
888 extern errcode_t ext2fs_set_inode_bitmap_range(ext2fs_inode_bitmap bmap,
889 ext2_ino_t start, unsigned int num,
891 extern errcode_t ext2fs_set_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
892 __u64 start, size_t num,
894 extern errcode_t ext2fs_get_inode_bitmap_range(ext2fs_inode_bitmap bmap,
895 ext2_ino_t start, unsigned int num,
897 extern errcode_t ext2fs_get_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
898 __u64 start, size_t num,
900 extern errcode_t ext2fs_set_block_bitmap_range(ext2fs_block_bitmap bmap,
901 blk_t start, unsigned int num,
903 extern errcode_t ext2fs_set_block_bitmap_range2(ext2fs_block_bitmap bmap,
904 blk64_t start, size_t num,
906 extern errcode_t ext2fs_get_block_bitmap_range(ext2fs_block_bitmap bmap,
907 blk_t start, unsigned int num,
909 extern errcode_t ext2fs_get_block_bitmap_range2(ext2fs_block_bitmap bmap,
910 blk64_t start, size_t num,
914 extern __u32 ext2fs_inode_bitmap_checksum(ext2_filsys fs, dgrp_t group);
915 extern __u32 ext2fs_block_bitmap_checksum(ext2_filsys fs, dgrp_t group);
916 extern dgrp_t ext2fs_group_of_blk2(ext2_filsys fs, blk64_t);
917 extern blk64_t ext2fs_group_first_block2(ext2_filsys fs, dgrp_t group);
918 extern blk64_t ext2fs_group_last_block2(ext2_filsys fs, dgrp_t group);
919 extern int ext2fs_group_blocks_count(ext2_filsys fs, dgrp_t group);
920 extern blk64_t ext2fs_inode_data_blocks2(ext2_filsys fs,
921 struct ext2_inode *inode);
922 extern blk64_t ext2fs_inode_i_blocks(ext2_filsys fs,
923 struct ext2_inode *inode);
924 extern blk64_t ext2fs_blocks_count(struct ext2_super_block *super);
925 extern void ext2fs_blocks_count_set(struct ext2_super_block *super,
927 extern void ext2fs_blocks_count_add(struct ext2_super_block *super,
929 extern blk64_t ext2fs_r_blocks_count(struct ext2_super_block *super);
930 extern void ext2fs_r_blocks_count_set(struct ext2_super_block *super,
932 extern void ext2fs_r_blocks_count_add(struct ext2_super_block *super,
934 extern blk64_t ext2fs_free_blocks_count(struct ext2_super_block *super);
935 extern void ext2fs_free_blocks_count_set(struct ext2_super_block *super,
937 extern void ext2fs_free_blocks_count_add(struct ext2_super_block *super,
939 /* Block group descriptor accessor functions */
940 extern struct ext2_group_desc *ext2fs_group_desc(ext2_filsys fs,
941 struct opaque_ext2_group_desc *gdp,
943 extern blk64_t ext2fs_block_bitmap_csum(ext2_filsys fs, dgrp_t group);
944 extern blk64_t ext2fs_block_bitmap_loc(ext2_filsys fs, dgrp_t group);
945 extern void ext2fs_block_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
947 extern __u32 ext2fs_inode_bitmap_csum(ext2_filsys fs, dgrp_t group);
948 extern blk64_t ext2fs_inode_bitmap_loc(ext2_filsys fs, dgrp_t group);
949 extern void ext2fs_inode_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
951 extern blk64_t ext2fs_inode_table_loc(ext2_filsys fs, dgrp_t group);
952 extern void ext2fs_inode_table_loc_set(ext2_filsys fs, dgrp_t group,
954 extern __u32 ext2fs_bg_free_blocks_count(ext2_filsys fs, dgrp_t group);
955 extern void ext2fs_bg_free_blocks_count_set(ext2_filsys fs, dgrp_t group,
957 extern __u32 ext2fs_bg_free_inodes_count(ext2_filsys fs, dgrp_t group);
958 extern void ext2fs_bg_free_inodes_count_set(ext2_filsys fs, dgrp_t group,
960 extern __u32 ext2fs_bg_used_dirs_count(ext2_filsys fs, dgrp_t group);
961 extern void ext2fs_bg_used_dirs_count_set(ext2_filsys fs, dgrp_t group,
963 extern __u32 ext2fs_bg_itable_unused(ext2_filsys fs, dgrp_t group);
964 extern void ext2fs_bg_itable_unused_set(ext2_filsys fs, dgrp_t group,
966 extern __u16 ext2fs_bg_flags(ext2_filsys fs, dgrp_t group);
967 extern void ext2fs_bg_flags_zap(ext2_filsys fs, dgrp_t group);
968 extern int ext2fs_bg_flags_test(ext2_filsys fs, dgrp_t group, __u16 bg_flag);
969 extern void ext2fs_bg_flags_set(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
970 extern void ext2fs_bg_flags_clear(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
971 extern __u16 ext2fs_bg_checksum(ext2_filsys fs, dgrp_t group);
972 extern void ext2fs_bg_checksum_set(ext2_filsys fs, dgrp_t group, __u16 checksum);
973 extern blk64_t ext2fs_file_acl_block(ext2_filsys fs,
974 const struct ext2_inode *inode);
975 extern void ext2fs_file_acl_block_set(ext2_filsys fs,
976 struct ext2_inode *inode, blk64_t blk);
977 extern errcode_t ext2fs_inode_size_set(ext2_filsys fs, struct ext2_inode *inode,
981 extern errcode_t ext2fs_block_iterate(ext2_filsys fs,
985 int (*func)(ext2_filsys fs,
990 errcode_t ext2fs_block_iterate2(ext2_filsys fs,
994 int (*func)(ext2_filsys fs,
996 e2_blkcnt_t blockcnt,
1001 errcode_t ext2fs_block_iterate3(ext2_filsys fs,
1005 int (*func)(ext2_filsys fs,
1007 e2_blkcnt_t blockcnt,
1014 extern errcode_t ext2fs_bmap(ext2_filsys fs, ext2_ino_t ino,
1015 struct ext2_inode *inode,
1016 char *block_buf, int bmap_flags,
1017 blk_t block, blk_t *phys_blk);
1018 extern errcode_t ext2fs_bmap2(ext2_filsys fs, ext2_ino_t ino,
1019 struct ext2_inode *inode,
1020 char *block_buf, int bmap_flags, blk64_t block,
1021 int *ret_flags, blk64_t *phys_blk);
1022 errcode_t ext2fs_map_cluster_block(ext2_filsys fs, ext2_ino_t ino,
1023 struct ext2_inode *inode, blk64_t lblk,
1028 extern errcode_t ext2fs_move_blocks(ext2_filsys fs,
1029 ext2fs_block_bitmap reserve,
1030 ext2fs_block_bitmap alloc_map,
1035 extern errcode_t ext2fs_check_desc(ext2_filsys fs);
1038 extern errcode_t ext2fs_close(ext2_filsys fs);
1039 extern errcode_t ext2fs_close2(ext2_filsys fs, int flags);
1040 extern errcode_t ext2fs_close_free(ext2_filsys *fs);
1041 extern errcode_t ext2fs_flush(ext2_filsys fs);
1042 extern errcode_t ext2fs_flush2(ext2_filsys fs, int flags);
1043 extern int ext2fs_bg_has_super(ext2_filsys fs, dgrp_t group_block);
1044 extern errcode_t ext2fs_super_and_bgd_loc2(ext2_filsys fs,
1046 blk64_t *ret_super_blk,
1047 blk64_t *ret_old_desc_blk,
1048 blk64_t *ret_new_desc_blk,
1049 blk_t *ret_used_blks);
1050 extern int ext2fs_super_and_bgd_loc(ext2_filsys fs,
1052 blk_t *ret_super_blk,
1053 blk_t *ret_old_desc_blk,
1054 blk_t *ret_new_desc_blk,
1056 extern void ext2fs_update_dynamic_rev(ext2_filsys fs);
1059 extern __u32 ext2fs_crc32_be(__u32 crc, unsigned char const *p, size_t len);
1060 extern __u32 ext2fs_crc32c_le(__u32 crc, unsigned char const *p, size_t len);
1063 extern void ext2fs_init_csum_seed(ext2_filsys fs);
1064 extern errcode_t ext2fs_mmp_csum_set(ext2_filsys fs, struct mmp_struct *mmp);
1065 extern int ext2fs_mmp_csum_verify(ext2_filsys, struct mmp_struct *mmp);
1066 extern int ext2fs_verify_csum_type(ext2_filsys fs, struct ext2_super_block *sb);
1067 extern errcode_t ext2fs_superblock_csum_set(ext2_filsys fs,
1068 struct ext2_super_block *sb);
1069 extern int ext2fs_superblock_csum_verify(ext2_filsys fs,
1070 struct ext2_super_block *sb);
1071 extern errcode_t ext2fs_ext_attr_block_csum_set(ext2_filsys fs,
1072 ext2_ino_t inum, blk64_t block,
1073 struct ext2_ext_attr_header *hdr);
1074 extern int ext2fs_ext_attr_block_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1076 struct ext2_ext_attr_header *hdr);
1077 #define EXT2_DIRENT_TAIL(block, blocksize) \
1078 ((struct ext2_dir_entry_tail *)(((char *)(block)) + \
1079 (blocksize) - sizeof(struct ext2_dir_entry_tail)))
1081 extern void ext2fs_initialize_dirent_tail(ext2_filsys fs,
1082 struct ext2_dir_entry_tail *t);
1083 extern int ext2fs_dirent_has_tail(ext2_filsys fs,
1084 struct ext2_dir_entry *dirent);
1085 extern int ext2fs_dirent_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1086 struct ext2_dir_entry *dirent);
1087 extern int ext2fs_dir_block_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1088 struct ext2_dir_entry *dirent);
1089 extern errcode_t ext2fs_dir_block_csum_set(ext2_filsys fs, ext2_ino_t inum,
1090 struct ext2_dir_entry *dirent);
1091 extern errcode_t ext2fs_get_dx_countlimit(ext2_filsys fs,
1092 struct ext2_dir_entry *dirent,
1093 struct ext2_dx_countlimit **cc,
1095 extern errcode_t ext2fs_extent_block_csum_set(ext2_filsys fs,
1097 struct ext3_extent_header *eh);
1098 extern int ext2fs_extent_block_csum_verify(ext2_filsys fs,
1100 struct ext3_extent_header *eh);
1101 extern errcode_t ext2fs_block_bitmap_csum_set(ext2_filsys fs, dgrp_t group,
1102 char *bitmap, int size);
1103 extern int ext2fs_block_bitmap_csum_verify(ext2_filsys fs, dgrp_t group,
1104 char *bitmap, int size);
1105 extern errcode_t ext2fs_inode_bitmap_csum_set(ext2_filsys fs, dgrp_t group,
1106 char *bitmap, int size);
1107 extern int ext2fs_inode_bitmap_csum_verify(ext2_filsys fs, dgrp_t group,
1108 char *bitmap, int size);
1109 extern errcode_t ext2fs_inode_csum_set(ext2_filsys fs, ext2_ino_t inum,
1110 struct ext2_inode_large *inode);
1111 extern int ext2fs_inode_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1112 struct ext2_inode_large *inode);
1113 extern void ext2fs_group_desc_csum_set(ext2_filsys fs, dgrp_t group);
1114 extern int ext2fs_group_desc_csum_verify(ext2_filsys fs, dgrp_t group);
1115 extern errcode_t ext2fs_set_gdt_csum(ext2_filsys fs);
1116 extern __u16 ext2fs_group_desc_csum(ext2_filsys fs, dgrp_t group);
1119 extern errcode_t ext2fs_init_dblist(ext2_filsys fs, ext2_dblist *ret_dblist);
1120 extern errcode_t ext2fs_add_dir_block(ext2_dblist dblist, ext2_ino_t ino,
1121 blk_t blk, int blockcnt);
1122 extern errcode_t ext2fs_add_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
1123 blk64_t blk, e2_blkcnt_t blockcnt);
1124 extern void ext2fs_dblist_sort(ext2_dblist dblist,
1125 EXT2_QSORT_TYPE (*sortfunc)(const void *,
1127 extern void ext2fs_dblist_sort2(ext2_dblist dblist,
1128 EXT2_QSORT_TYPE (*sortfunc)(const void *,
1130 extern errcode_t ext2fs_dblist_iterate(ext2_dblist dblist,
1131 int (*func)(ext2_filsys fs, struct ext2_db_entry *db_info,
1134 extern errcode_t ext2fs_dblist_iterate2(ext2_dblist dblist,
1135 int (*func)(ext2_filsys fs, struct ext2_db_entry2 *db_info,
1138 extern errcode_t ext2fs_dblist_iterate3(ext2_dblist dblist,
1139 int (*func)(ext2_filsys fs, struct ext2_db_entry2 *db_info,
1141 unsigned long long start,
1142 unsigned long long count,
1144 extern errcode_t ext2fs_set_dir_block(ext2_dblist dblist, ext2_ino_t ino,
1145 blk_t blk, int blockcnt);
1146 extern errcode_t ext2fs_set_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
1147 blk64_t blk, e2_blkcnt_t blockcnt);
1148 extern errcode_t ext2fs_copy_dblist(ext2_dblist src,
1150 extern int ext2fs_dblist_count(ext2_dblist dblist);
1151 extern blk64_t ext2fs_dblist_count2(ext2_dblist dblist);
1152 extern errcode_t ext2fs_dblist_get_last(ext2_dblist dblist,
1153 struct ext2_db_entry **entry);
1154 extern errcode_t ext2fs_dblist_get_last2(ext2_dblist dblist,
1155 struct ext2_db_entry2 **entry);
1156 extern errcode_t ext2fs_dblist_drop_last(ext2_dblist dblist);
1160 ext2fs_dblist_dir_iterate(ext2_dblist dblist,
1163 int (*func)(ext2_ino_t dir,
1165 struct ext2_dir_entry *dirent,
1173 /* digest_encode.c */
1174 #define EXT2FS_DIGEST_SIZE EXT2FS_SHA256_LENGTH
1175 extern int ext2fs_digest_encode(const char *src, int len, char *dst);
1176 extern int ext2fs_digest_decode(const char *src, int len, char *dst);
1180 extern errcode_t ext2fs_read_dir_block(ext2_filsys fs, blk_t block,
1182 extern errcode_t ext2fs_read_dir_block2(ext2_filsys fs, blk_t block,
1183 void *buf, int flags);
1184 extern errcode_t ext2fs_read_dir_block3(ext2_filsys fs, blk64_t block,
1185 void *buf, int flags);
1186 extern errcode_t ext2fs_read_dir_block4(ext2_filsys fs, blk64_t block,
1187 void *buf, int flags, ext2_ino_t ino);
1188 extern errcode_t ext2fs_write_dir_block(ext2_filsys fs, blk_t block,
1190 extern errcode_t ext2fs_write_dir_block2(ext2_filsys fs, blk_t block,
1191 void *buf, int flags);
1192 extern errcode_t ext2fs_write_dir_block3(ext2_filsys fs, blk64_t block,
1193 void *buf, int flags);
1194 extern errcode_t ext2fs_write_dir_block4(ext2_filsys fs, blk64_t block,
1195 void *buf, int flags, ext2_ino_t ino);
1198 extern errcode_t ext2fs_dirhash(int version, const char *name, int len,
1200 ext2_dirhash_t *ret_hash,
1201 ext2_dirhash_t *ret_minor_hash);
1203 extern errcode_t ext2fs_dirhash2(int version, const char *name, int len,
1204 const struct ext2fs_nls_table *charset,
1207 ext2_dirhash_t *ret_hash,
1208 ext2_dirhash_t *ret_minor_hash);
1211 extern errcode_t ext2fs_get_rec_len(ext2_filsys fs,
1212 struct ext2_dir_entry *dirent,
1213 unsigned int *rec_len);
1214 extern errcode_t ext2fs_set_rec_len(ext2_filsys fs,
1216 struct ext2_dir_entry *dirent);
1217 extern errcode_t ext2fs_dir_iterate(ext2_filsys fs,
1221 int (*func)(struct ext2_dir_entry *dirent,
1227 extern errcode_t ext2fs_dir_iterate2(ext2_filsys fs,
1231 int (*func)(ext2_ino_t dir,
1233 struct ext2_dir_entry *dirent,
1241 extern errcode_t ext2fs_dup_handle(ext2_filsys src, ext2_filsys *dest);
1244 extern errcode_t ext2fs_expand_dir(ext2_filsys fs, ext2_ino_t dir);
1247 extern __u32 ext2fs_ext_attr_hash_entry(struct ext2_ext_attr_entry *entry,
1249 extern errcode_t ext2fs_ext_attr_hash_entry2(ext2_filsys fs,
1250 struct ext2_ext_attr_entry *entry,
1251 void *data, __u32 *hash);
1252 extern errcode_t ext2fs_read_ext_attr(ext2_filsys fs, blk_t block, void *buf);
1253 extern errcode_t ext2fs_read_ext_attr2(ext2_filsys fs, blk64_t block,
1255 extern errcode_t ext2fs_read_ext_attr3(ext2_filsys fs, blk64_t block,
1256 void *buf, ext2_ino_t inum);
1257 extern errcode_t ext2fs_write_ext_attr(ext2_filsys fs, blk_t block,
1259 extern errcode_t ext2fs_write_ext_attr2(ext2_filsys fs, blk64_t block,
1261 extern errcode_t ext2fs_write_ext_attr3(ext2_filsys fs, blk64_t block,
1262 void *buf, ext2_ino_t inum);
1263 extern errcode_t ext2fs_adjust_ea_refcount(ext2_filsys fs, blk_t blk,
1265 int adjust, __u32 *newcount);
1266 extern errcode_t ext2fs_adjust_ea_refcount2(ext2_filsys fs, blk64_t blk,
1268 int adjust, __u32 *newcount);
1269 extern errcode_t ext2fs_adjust_ea_refcount3(ext2_filsys fs, blk64_t blk,
1271 int adjust, __u32 *newcount,
1273 errcode_t ext2fs_xattrs_write(struct ext2_xattr_handle *handle);
1274 errcode_t ext2fs_xattrs_read(struct ext2_xattr_handle *handle);
1275 errcode_t ext2fs_xattrs_iterate(struct ext2_xattr_handle *h,
1276 int (*func)(char *name, char *value,
1277 size_t value_len, void *data),
1279 errcode_t ext2fs_xattr_get(struct ext2_xattr_handle *h, const char *key,
1280 void **value, size_t *value_len);
1281 errcode_t ext2fs_xattr_set(struct ext2_xattr_handle *handle,
1285 errcode_t ext2fs_xattr_remove(struct ext2_xattr_handle *handle,
1287 errcode_t ext2fs_xattrs_open(ext2_filsys fs, ext2_ino_t ino,
1288 struct ext2_xattr_handle **handle);
1289 errcode_t ext2fs_xattrs_close(struct ext2_xattr_handle **handle);
1290 errcode_t ext2fs_free_ext_attr(ext2_filsys fs, ext2_ino_t ino,
1291 struct ext2_inode_large *inode);
1292 errcode_t ext2fs_xattrs_count(struct ext2_xattr_handle *handle, size_t *count);
1293 errcode_t ext2fs_xattr_inode_max_size(ext2_filsys fs, ext2_ino_t ino,
1295 #define XATTR_HANDLE_FLAG_RAW 0x0001
1296 errcode_t ext2fs_xattrs_flags(struct ext2_xattr_handle *handle,
1297 unsigned int *new_flags, unsigned int *old_flags);
1298 extern void ext2fs_ext_attr_block_rehash(struct ext2_ext_attr_header *header,
1299 struct ext2_ext_attr_entry *end);
1300 extern __u32 ext2fs_get_ea_inode_hash(struct ext2_inode *inode);
1301 extern void ext2fs_set_ea_inode_hash(struct ext2_inode *inode, __u32 hash);
1302 extern __u64 ext2fs_get_ea_inode_ref(struct ext2_inode *inode);
1303 extern void ext2fs_set_ea_inode_ref(struct ext2_inode *inode, __u64 ref_count);
1306 extern errcode_t ext2fs_extent_header_verify(void *ptr, int size);
1307 extern errcode_t ext2fs_extent_open(ext2_filsys fs, ext2_ino_t ino,
1308 ext2_extent_handle_t *handle);
1309 extern errcode_t ext2fs_extent_open2(ext2_filsys fs, ext2_ino_t ino,
1310 struct ext2_inode *inode,
1311 ext2_extent_handle_t *ret_handle);
1312 extern void ext2fs_extent_free(ext2_extent_handle_t handle);
1313 extern errcode_t ext2fs_extent_get(ext2_extent_handle_t handle,
1314 int flags, struct ext2fs_extent *extent);
1315 extern errcode_t ext2fs_extent_node_split(ext2_extent_handle_t handle);
1316 extern errcode_t ext2fs_extent_replace(ext2_extent_handle_t handle, int flags,
1317 struct ext2fs_extent *extent);
1318 extern errcode_t ext2fs_extent_insert(ext2_extent_handle_t handle, int flags,
1319 struct ext2fs_extent *extent);
1320 extern errcode_t ext2fs_extent_set_bmap(ext2_extent_handle_t handle,
1321 blk64_t logical, blk64_t physical,
1323 extern errcode_t ext2fs_extent_delete(ext2_extent_handle_t handle, int flags);
1324 extern errcode_t ext2fs_extent_get_info(ext2_extent_handle_t handle,
1325 struct ext2_extent_info *info);
1326 extern errcode_t ext2fs_extent_goto(ext2_extent_handle_t handle,
1328 extern errcode_t ext2fs_extent_goto2(ext2_extent_handle_t handle,
1329 int leaf_level, blk64_t blk);
1330 extern errcode_t ext2fs_extent_fix_parents(ext2_extent_handle_t handle);
1331 extern size_t ext2fs_max_extent_depth(ext2_extent_handle_t handle);
1332 extern errcode_t ext2fs_fix_extents_checksums(ext2_filsys fs, ext2_ino_t ino,
1333 struct ext2_inode *inode);
1336 #define EXT2_FALLOCATE_ZERO_BLOCKS (0x1)
1337 #define EXT2_FALLOCATE_FORCE_INIT (0x2)
1338 #define EXT2_FALLOCATE_FORCE_UNINIT (0x4)
1339 #define EXT2_FALLOCATE_INIT_BEYOND_EOF (0x8)
1340 #define EXT2_FALLOCATE_ALL_FLAGS (0xF)
1341 errcode_t ext2fs_fallocate(ext2_filsys fs, int flags, ext2_ino_t ino,
1342 struct ext2_inode *inode, blk64_t goal,
1343 blk64_t start, blk64_t len);
1346 extern errcode_t ext2fs_file_open2(ext2_filsys fs, ext2_ino_t ino,
1347 struct ext2_inode *inode,
1348 int flags, ext2_file_t *ret);
1349 extern errcode_t ext2fs_file_open(ext2_filsys fs, ext2_ino_t ino,
1350 int flags, ext2_file_t *ret);
1351 extern ext2_filsys ext2fs_file_get_fs(ext2_file_t file);
1352 struct ext2_inode *ext2fs_file_get_inode(ext2_file_t file);
1353 extern ext2_ino_t ext2fs_file_get_inode_num(ext2_file_t file);
1354 extern errcode_t ext2fs_file_close(ext2_file_t file);
1355 extern errcode_t ext2fs_file_flush(ext2_file_t file);
1356 extern errcode_t ext2fs_file_read(ext2_file_t file, void *buf,
1357 unsigned int wanted, unsigned int *got);
1358 extern errcode_t ext2fs_file_write(ext2_file_t file, const void *buf,
1359 unsigned int nbytes, unsigned int *written);
1360 extern errcode_t ext2fs_file_llseek(ext2_file_t file, __u64 offset,
1361 int whence, __u64 *ret_pos);
1362 extern errcode_t ext2fs_file_lseek(ext2_file_t file, ext2_off_t offset,
1363 int whence, ext2_off_t *ret_pos);
1364 errcode_t ext2fs_file_get_lsize(ext2_file_t file, __u64 *ret_size);
1365 extern ext2_off_t ext2fs_file_get_size(ext2_file_t file);
1366 extern errcode_t ext2fs_file_set_size(ext2_file_t file, ext2_off_t size);
1367 extern errcode_t ext2fs_file_set_size2(ext2_file_t file, ext2_off64_t size);
1370 extern char *ext2fs_find_block_device(dev_t device);
1373 extern errcode_t ext2fs_sync_device(int fd, int flushb);
1376 extern void ext2fs_free(ext2_filsys fs);
1377 extern void ext2fs_free_dblist(ext2_dblist dblist);
1378 extern void ext2fs_badblocks_list_free(ext2_badblocks_list bb);
1379 extern void ext2fs_u32_list_free(ext2_u32_list bb);
1382 extern void ext2fs_free_generic_bitmap(ext2fs_inode_bitmap bitmap);
1383 extern errcode_t ext2fs_make_generic_bitmap(errcode_t magic, ext2_filsys fs,
1384 __u32 start, __u32 end,
1386 const char *descr, char *init_map,
1387 ext2fs_generic_bitmap *ret);
1388 extern errcode_t ext2fs_allocate_generic_bitmap(__u32 start,
1392 ext2fs_generic_bitmap *ret);
1393 extern errcode_t ext2fs_copy_generic_bitmap(ext2fs_generic_bitmap src,
1394 ext2fs_generic_bitmap *dest);
1395 extern void ext2fs_clear_generic_bitmap(ext2fs_generic_bitmap bitmap);
1396 extern errcode_t ext2fs_fudge_generic_bitmap_end(ext2fs_inode_bitmap bitmap,
1401 extern void ext2fs_set_generic_bitmap_padding(ext2fs_generic_bitmap map);
1402 extern errcode_t ext2fs_resize_generic_bitmap(errcode_t magic,
1405 ext2fs_generic_bitmap bmap);
1406 extern errcode_t ext2fs_compare_generic_bitmap(errcode_t magic, errcode_t neq,
1407 ext2fs_generic_bitmap bm1,
1408 ext2fs_generic_bitmap bm2);
1409 extern errcode_t ext2fs_get_generic_bitmap_range(ext2fs_generic_bitmap bmap,
1411 __u32 start, __u32 num,
1413 extern errcode_t ext2fs_set_generic_bitmap_range(ext2fs_generic_bitmap bmap,
1415 __u32 start, __u32 num,
1417 extern errcode_t ext2fs_find_first_zero_generic_bitmap(ext2fs_generic_bitmap bitmap,
1418 __u32 start, __u32 end,
1420 extern errcode_t ext2fs_find_first_set_generic_bitmap(ext2fs_generic_bitmap bitmap,
1421 __u32 start, __u32 end,
1424 /* gen_bitmap64.c */
1425 void ext2fs_free_generic_bmap(ext2fs_generic_bitmap bmap);
1426 errcode_t ext2fs_alloc_generic_bmap(ext2_filsys fs, errcode_t magic,
1427 int type, __u64 start, __u64 end,
1430 ext2fs_generic_bitmap *ret);
1431 errcode_t ext2fs_copy_generic_bmap(ext2fs_generic_bitmap src,
1432 ext2fs_generic_bitmap *dest);
1433 void ext2fs_clear_generic_bmap(ext2fs_generic_bitmap bitmap);
1434 errcode_t ext2fs_fudge_generic_bmap_end(ext2fs_generic_bitmap bitmap,
1436 __u64 end, __u64 *oend);
1437 void ext2fs_set_generic_bmap_padding(ext2fs_generic_bitmap bmap);
1438 errcode_t ext2fs_resize_generic_bmap(ext2fs_generic_bitmap bmap,
1440 __u64 new_real_end);
1441 errcode_t ext2fs_compare_generic_bmap(errcode_t neq,
1442 ext2fs_generic_bitmap bm1,
1443 ext2fs_generic_bitmap bm2);
1444 errcode_t ext2fs_get_generic_bmap_range(ext2fs_generic_bitmap bmap,
1445 __u64 start, unsigned int num,
1447 errcode_t ext2fs_set_generic_bmap_range(ext2fs_generic_bitmap bmap,
1448 __u64 start, unsigned int num,
1450 errcode_t ext2fs_convert_subcluster_bitmap(ext2_filsys fs,
1451 ext2fs_block_bitmap *bitmap);
1453 /* get_num_dirs.c */
1454 extern errcode_t ext2fs_get_num_dirs(ext2_filsys fs, ext2_ino_t *ret_num_dirs);
1457 extern errcode_t ext2fs_get_device_size(const char *file, int blocksize,
1459 extern errcode_t ext2fs_get_device_size2(const char *file, int blocksize,
1460 blk64_t *retblocks);
1463 extern int ext2fs_get_dio_alignment(int fd);
1464 errcode_t ext2fs_get_device_sectsize(const char *file, int *sectsize);
1465 errcode_t ext2fs_get_device_phys_sectsize(const char *file, int *sectsize);
1468 errcode_t ext2fs_iblk_add_blocks(ext2_filsys fs, struct ext2_inode *inode,
1469 blk64_t num_blocks);
1470 errcode_t ext2fs_iblk_sub_blocks(ext2_filsys fs, struct ext2_inode *inode,
1471 blk64_t num_blocks);
1472 errcode_t ext2fs_iblk_set(ext2_filsys fs, struct ext2_inode *inode, blk64_t b);
1475 extern errcode_t ext2fs_image_inode_write(ext2_filsys fs, int fd, int flags);
1476 extern errcode_t ext2fs_image_inode_read(ext2_filsys fs, int fd, int flags);
1477 extern errcode_t ext2fs_image_super_write(ext2_filsys fs, int fd, int flags);
1478 extern errcode_t ext2fs_image_super_read(ext2_filsys fs, int fd, int flags);
1479 extern errcode_t ext2fs_image_bitmap_write(ext2_filsys fs, int fd, int flags);
1480 extern errcode_t ext2fs_image_bitmap_read(ext2_filsys fs, int fd, int flags);
1483 errcode_t ext2fs_read_ind_block(ext2_filsys fs, blk_t blk, void *buf);
1484 errcode_t ext2fs_write_ind_block(ext2_filsys fs, blk_t blk, void *buf);
1487 extern errcode_t ext2fs_initialize(const char *name, int flags,
1488 struct ext2_super_block *param,
1489 io_manager manager, ext2_filsys *ret_fs);
1492 extern void ext2fs_free_icount(ext2_icount_t icount);
1493 extern errcode_t ext2fs_create_icount_tdb(ext2_filsys fs, char *tdb_dir,
1494 int flags, ext2_icount_t *ret);
1495 extern errcode_t ext2fs_create_icount2(ext2_filsys fs, int flags,
1497 ext2_icount_t hint, ext2_icount_t *ret);
1498 extern errcode_t ext2fs_create_icount(ext2_filsys fs, int flags,
1500 ext2_icount_t *ret);
1501 extern errcode_t ext2fs_icount_fetch(ext2_icount_t icount, ext2_ino_t ino,
1503 extern errcode_t ext2fs_icount_increment(ext2_icount_t icount, ext2_ino_t ino,
1505 extern errcode_t ext2fs_icount_decrement(ext2_icount_t icount, ext2_ino_t ino,
1507 extern errcode_t ext2fs_icount_store(ext2_icount_t icount, ext2_ino_t ino,
1509 extern ext2_ino_t ext2fs_get_icount_size(ext2_icount_t icount);
1510 errcode_t ext2fs_icount_validate(ext2_icount_t icount, FILE *);
1514 extern errcode_t ext2fs_get_memalign(unsigned long size,
1515 unsigned long align, void *ptr);
1518 extern errcode_t ext2fs_inline_data_init(ext2_filsys fs, ext2_ino_t ino);
1519 extern errcode_t ext2fs_inline_data_size(ext2_filsys fs, ext2_ino_t ino,
1521 extern errcode_t ext2fs_inline_data_get(ext2_filsys fs, ext2_ino_t ino,
1522 struct ext2_inode *inode,
1523 void *buf, size_t *size);
1524 extern errcode_t ext2fs_inline_data_set(ext2_filsys fs, ext2_ino_t ino,
1525 struct ext2_inode *inode,
1526 void *buf, size_t size);
1529 extern errcode_t ext2fs_create_inode_cache(ext2_filsys fs,
1530 unsigned int cache_size);
1531 extern void ext2fs_free_inode_cache(struct ext2_inode_cache *icache);
1532 extern errcode_t ext2fs_flush_icache(ext2_filsys fs);
1533 extern errcode_t ext2fs_get_next_inode_full(ext2_inode_scan scan,
1535 struct ext2_inode *inode,
1537 #define EXT2_INODE_SCAN_DEFAULT_BUFFER_BLOCKS 8
1538 extern errcode_t ext2fs_open_inode_scan(ext2_filsys fs, int buffer_blocks,
1539 ext2_inode_scan *ret_scan);
1540 extern void ext2fs_close_inode_scan(ext2_inode_scan scan);
1541 extern errcode_t ext2fs_get_next_inode(ext2_inode_scan scan, ext2_ino_t *ino,
1542 struct ext2_inode *inode);
1543 extern errcode_t ext2fs_inode_scan_goto_blockgroup(ext2_inode_scan scan,
1545 extern void ext2fs_set_inode_callback
1546 (ext2_inode_scan scan,
1547 errcode_t (*done_group)(ext2_filsys fs,
1548 ext2_inode_scan scan,
1551 void *done_group_data);
1552 extern int ext2fs_inode_scan_flags(ext2_inode_scan scan, int set_flags,
1554 extern errcode_t ext2fs_read_inode_full(ext2_filsys fs, ext2_ino_t ino,
1555 struct ext2_inode * inode,
1557 extern errcode_t ext2fs_read_inode(ext2_filsys fs, ext2_ino_t ino,
1558 struct ext2_inode * inode);
1559 extern errcode_t ext2fs_read_inode2(ext2_filsys fs, ext2_ino_t ino,
1560 struct ext2_inode * inode,
1561 int bufsize, int flags);
1562 extern errcode_t ext2fs_write_inode_full(ext2_filsys fs, ext2_ino_t ino,
1563 struct ext2_inode * inode,
1565 extern errcode_t ext2fs_write_inode(ext2_filsys fs, ext2_ino_t ino,
1566 struct ext2_inode * inode);
1567 extern errcode_t ext2fs_write_inode2(ext2_filsys fs, ext2_ino_t ino,
1568 struct ext2_inode * inode,
1569 int bufsize, int flags);
1570 extern errcode_t ext2fs_write_new_inode(ext2_filsys fs, ext2_ino_t ino,
1571 struct ext2_inode * inode);
1572 extern errcode_t ext2fs_get_blocks(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
1573 extern errcode_t ext2fs_check_directory(ext2_filsys fs, ext2_ino_t ino);
1576 extern io_manager inode_io_manager;
1577 extern errcode_t ext2fs_inode_io_intern(ext2_filsys fs, ext2_ino_t ino,
1579 extern errcode_t ext2fs_inode_io_intern2(ext2_filsys fs, ext2_ino_t ino,
1580 struct ext2_inode *inode,
1584 extern errcode_t ext2fs_check_if_mounted(const char *file, int *mount_flags);
1585 extern errcode_t ext2fs_check_mount_point(const char *device, int *mount_flags,
1586 char *mtpt, int mtlen);
1590 * NOTE: This function removes from an inode the blocks "start", "end", and
1591 * every block in between.
1593 extern errcode_t ext2fs_punch(ext2_filsys fs, ext2_ino_t ino,
1594 struct ext2_inode *inode,
1595 char *block_buf, blk64_t start,
1599 extern errcode_t ext2fs_lookup(ext2_filsys fs, ext2_ino_t dir, const char *name,
1600 int namelen, char *buf, ext2_ino_t *inode);
1601 extern errcode_t ext2fs_namei(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1602 const char *name, ext2_ino_t *inode);
1603 errcode_t ext2fs_namei_follow(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1604 const char *name, ext2_ino_t *inode);
1605 extern errcode_t ext2fs_follow_link(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1606 ext2_ino_t inode, ext2_ino_t *res_inode);
1609 int ext2fs_native_flag(void);
1612 extern errcode_t ext2fs_new_dir_block(ext2_filsys fs, ext2_ino_t dir_ino,
1613 ext2_ino_t parent_ino, char **block);
1614 extern errcode_t ext2fs_new_dir_inline_data(ext2_filsys fs, ext2_ino_t dir_ino,
1615 ext2_ino_t parent_ino, __u32 *iblock);
1618 extern const struct ext2fs_nls_table *ext2fs_load_nls_table(int encoding);
1621 extern errcode_t ext2fs_mkdir(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t inum,
1625 extern errcode_t ext2fs_zero_blocks(ext2_filsys fs, blk_t blk, int num,
1626 blk_t *ret_blk, int *ret_count);
1627 extern errcode_t ext2fs_zero_blocks2(ext2_filsys fs, blk64_t blk, int num,
1628 blk64_t *ret_blk, int *ret_count);
1629 extern errcode_t ext2fs_create_journal_superblock(ext2_filsys fs,
1630 __u32 num_blocks, int flags,
1632 extern errcode_t ext2fs_add_journal_device(ext2_filsys fs,
1633 ext2_filsys journal_dev);
1634 extern errcode_t ext2fs_add_journal_inode(ext2_filsys fs, blk_t num_blocks,
1636 extern errcode_t ext2fs_add_journal_inode2(ext2_filsys fs, blk_t num_blocks,
1637 blk64_t goal, int flags);
1638 extern int ext2fs_default_journal_size(__u64 num_blocks);
1639 extern int ext2fs_journal_sb_start(int blocksize);
1642 extern errcode_t ext2fs_open(const char *name, int flags, int superblock,
1643 unsigned int block_size, io_manager manager,
1644 ext2_filsys *ret_fs);
1645 extern errcode_t ext2fs_open2(const char *name, const char *io_options,
1646 int flags, int superblock,
1647 unsigned int block_size, io_manager manager,
1648 ext2_filsys *ret_fs);
1650 * The dgrp_t argument to these two functions is not actually a group number
1651 * but a block number offset within a group table! Convert with the formula
1652 * (group_number / groups_per_block).
1654 extern blk64_t ext2fs_descriptor_block_loc2(ext2_filsys fs,
1655 blk64_t group_block, dgrp_t i);
1656 extern blk_t ext2fs_descriptor_block_loc(ext2_filsys fs, blk_t group_block,
1658 errcode_t ext2fs_get_data_io(ext2_filsys fs, io_channel *old_io);
1659 errcode_t ext2fs_set_data_io(ext2_filsys fs, io_channel new_io);
1660 errcode_t ext2fs_rewrite_to_io(ext2_filsys fs, io_channel new_io);
1662 /* get_pathname.c */
1663 extern errcode_t ext2fs_get_pathname(ext2_filsys fs, ext2_ino_t dir, ext2_ino_t ino,
1667 errcode_t ext2fs_link(ext2_filsys fs, ext2_ino_t dir, const char *name,
1668 ext2_ino_t ino, int flags);
1669 errcode_t ext2fs_unlink(ext2_filsys fs, ext2_ino_t dir, const char *name,
1670 ext2_ino_t ino, int flags);
1673 errcode_t ext2fs_symlink(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t ino,
1674 const char *name, const char *target);
1675 int ext2fs_is_fast_symlink(struct ext2_inode *inode);
1678 errcode_t ext2fs_mmp_read(ext2_filsys fs, blk64_t mmp_blk, void *buf);
1679 errcode_t ext2fs_mmp_write(ext2_filsys fs, blk64_t mmp_blk, void *buf);
1680 errcode_t ext2fs_mmp_clear(ext2_filsys fs);
1681 errcode_t ext2fs_mmp_init(ext2_filsys fs);
1682 errcode_t ext2fs_mmp_start(ext2_filsys fs);
1683 errcode_t ext2fs_mmp_update(ext2_filsys fs);
1684 errcode_t ext2fs_mmp_update2(ext2_filsys fs, int immediately);
1685 errcode_t ext2fs_mmp_stop(ext2_filsys fs);
1686 unsigned ext2fs_mmp_new_seq(void);
1689 extern errcode_t ext2fs_read_bb_inode(ext2_filsys fs,
1690 ext2_badblocks_list *bb_list);
1692 /* read_bb_file.c */
1693 extern errcode_t ext2fs_read_bb_FILE2(ext2_filsys fs, FILE *f,
1694 ext2_badblocks_list *bb_list,
1696 void (*invalid)(ext2_filsys fs,
1700 extern errcode_t ext2fs_read_bb_FILE(ext2_filsys fs, FILE *f,
1701 ext2_badblocks_list *bb_list,
1702 void (*invalid)(ext2_filsys fs,
1706 extern errcode_t ext2fs_create_resize_inode(ext2_filsys fs);
1709 #define EXT2FS_SHA256_LENGTH 32
1711 extern void ext2fs_sha256(const unsigned char *in, unsigned long in_size,
1712 unsigned char out[EXT2FS_SHA256_LENGTH]);
1716 #define EXT2FS_SHA512_LENGTH 64
1717 extern void ext2fs_sha512(const unsigned char *in, unsigned long in_size,
1718 unsigned char out[EXT2FS_SHA512_LENGTH]);
1721 extern errcode_t ext2fs_dirent_swab_in2(ext2_filsys fs, char *buf, size_t size,
1723 extern errcode_t ext2fs_dirent_swab_in(ext2_filsys fs, char *buf, int flags);
1724 extern errcode_t ext2fs_dirent_swab_out2(ext2_filsys fs, char *buf, size_t size,
1726 extern errcode_t ext2fs_dirent_swab_out(ext2_filsys fs, char *buf, int flags);
1727 extern void ext2fs_swap_ext_attr(char *to, char *from, int bufsize,
1729 extern void ext2fs_swap_ext_attr_header(struct ext2_ext_attr_header *to_header,
1730 struct ext2_ext_attr_header *from_hdr);
1731 extern void ext2fs_swap_ext_attr_entry(struct ext2_ext_attr_entry *to_entry,
1732 struct ext2_ext_attr_entry *from_entry);
1733 extern void ext2fs_swap_super(struct ext2_super_block * super);
1734 extern void ext2fs_swap_group_desc(struct ext2_group_desc *gdp);
1735 extern void ext2fs_swap_group_desc2(ext2_filsys, struct ext2_group_desc *gdp);
1736 extern void ext2fs_swap_inode_full(ext2_filsys fs, struct ext2_inode_large *t,
1737 struct ext2_inode_large *f, int hostorder,
1739 extern void ext2fs_swap_inode(ext2_filsys fs,struct ext2_inode *t,
1740 struct ext2_inode *f, int hostorder);
1741 extern void ext2fs_swap_mmp(struct mmp_struct *mmp);
1744 extern int ext2fs_open_file(const char *pathname, int flags, mode_t mode);
1745 extern int ext2fs_stat(const char *path, ext2fs_struct_stat *buf);
1746 extern int ext2fs_fstat(int fd, ext2fs_struct_stat *buf);
1749 extern int ext2fs_inode_has_valid_blocks(struct ext2_inode *inode);
1750 extern int ext2fs_inode_has_valid_blocks2(ext2_filsys fs,
1751 struct ext2_inode *inode);
1754 extern int ext2fs_parse_version_string(const char *ver_string);
1755 extern int ext2fs_get_library_version(const char **ver_string,
1756 const char **date_string);
1758 /* write_bb_file.c */
1759 extern errcode_t ext2fs_write_bb_FILE(ext2_badblocks_list bb_list,
1764 /* inline functions */
1765 #ifdef NO_INLINE_FUNCS
1766 extern errcode_t ext2fs_get_mem(unsigned long size, void *ptr);
1767 extern errcode_t ext2fs_get_memzero(unsigned long size, void *ptr);
1768 extern errcode_t ext2fs_get_array(unsigned long count,
1769 unsigned long size, void *ptr);
1770 extern errcode_t ext2fs_get_arrayzero(unsigned long count,
1771 unsigned long size, void *ptr);
1772 extern errcode_t ext2fs_free_mem(void *ptr);
1773 extern errcode_t ext2fs_resize_mem(unsigned long old_size,
1774 unsigned long size, void *ptr);
1775 extern void ext2fs_mark_super_dirty(ext2_filsys fs);
1776 extern void ext2fs_mark_changed(ext2_filsys fs);
1777 extern int ext2fs_test_changed(ext2_filsys fs);
1778 extern void ext2fs_mark_valid(ext2_filsys fs);
1779 extern void ext2fs_unmark_valid(ext2_filsys fs);
1780 extern int ext2fs_test_valid(ext2_filsys fs);
1781 extern void ext2fs_mark_ib_dirty(ext2_filsys fs);
1782 extern void ext2fs_mark_bb_dirty(ext2_filsys fs);
1783 extern int ext2fs_test_ib_dirty(ext2_filsys fs);
1784 extern int ext2fs_test_bb_dirty(ext2_filsys fs);
1785 extern dgrp_t ext2fs_group_of_blk(ext2_filsys fs, blk_t blk);
1786 extern dgrp_t ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino);
1787 extern blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group);
1788 extern blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group);
1789 extern blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
1790 struct ext2_inode *inode);
1791 extern int ext2fs_htree_intnode_maxrecs(ext2_filsys fs, int blocks);
1792 extern unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b);
1793 extern __u64 ext2fs_div64_ceil(__u64 a, __u64 b);
1794 extern int ext2fs_dirent_name_len(const struct ext2_dir_entry *entry);
1795 extern void ext2fs_dirent_set_name_len(struct ext2_dir_entry *entry, int len);
1796 extern int ext2fs_dirent_file_type(const struct ext2_dir_entry *entry);
1797 extern void ext2fs_dirent_set_file_type(struct ext2_dir_entry *entry, int type);
1798 extern struct ext2_inode *ext2fs_inode(struct ext2_inode_large * large_inode);
1799 extern const struct ext2_inode *ext2fs_const_inode(const struct ext2_inode_large * large_inode);
1804 * The actual inlined functions definitions themselves...
1806 * If NO_INLINE_FUNCS is defined, then we won't try to do inline
1809 #if (defined(INCLUDE_INLINE_FUNCS) || !defined(NO_INLINE_FUNCS))
1810 #ifdef INCLUDE_INLINE_FUNCS
1811 #define _INLINE_ extern
1813 #if (__STDC_VERSION__ >= 199901L)
1814 #define _INLINE_ inline
1817 #define _INLINE_ extern __inline__
1818 #else /* For Watcom C */
1819 #define _INLINE_ extern inline
1820 #endif /* __GNUC__ */
1821 #endif /* __STDC_VERSION__ >= 199901L */
1824 #ifndef EXT2_CUSTOM_MEMORY_ROUTINES
1827 * Allocate memory. The 'ptr' arg must point to a pointer.
1829 _INLINE_ errcode_t ext2fs_get_mem(unsigned long size, void *ptr)
1835 return EXT2_ET_NO_MEMORY;
1836 memcpy(ptr, &pp, sizeof (pp));
1840 _INLINE_ errcode_t ext2fs_get_memzero(unsigned long size, void *ptr)
1846 return EXT2_ET_NO_MEMORY;
1847 memset(pp, 0, size);
1848 memcpy(ptr, &pp, sizeof(pp));
1852 _INLINE_ errcode_t ext2fs_get_array(unsigned long count, unsigned long size, void *ptr)
1854 if (count && (~0UL)/count < size)
1855 return EXT2_ET_NO_MEMORY;
1856 return ext2fs_get_mem(count*size, ptr);
1859 _INLINE_ errcode_t ext2fs_get_arrayzero(unsigned long count,
1860 unsigned long size, void *ptr)
1864 if (count && (~0UL)/count < size)
1865 return EXT2_ET_NO_MEMORY;
1866 pp = calloc(count, size);
1868 return EXT2_ET_NO_MEMORY;
1869 memcpy(ptr, &pp, sizeof(pp));
1874 * Free memory. The 'ptr' arg must point to a pointer.
1876 _INLINE_ errcode_t ext2fs_free_mem(void *ptr)
1880 memcpy(&p, ptr, sizeof(p));
1883 memcpy(ptr, &p, sizeof(p));
1888 * Resize memory. The 'ptr' arg must point to a pointer.
1890 _INLINE_ errcode_t ext2fs_resize_mem(unsigned long EXT2FS_ATTR((unused)) old_size,
1891 unsigned long size, void *ptr)
1895 /* Use "memcpy" for pointer assignments here to avoid problems
1896 * with C99 strict type aliasing rules. */
1897 memcpy(&p, ptr, sizeof(p));
1898 p = realloc(p, size);
1900 return EXT2_ET_NO_MEMORY;
1901 memcpy(ptr, &p, sizeof(p));
1904 #endif /* Custom memory routines */
1907 * Mark a filesystem superblock as dirty
1909 _INLINE_ void ext2fs_mark_super_dirty(ext2_filsys fs)
1911 fs->flags |= EXT2_FLAG_DIRTY | EXT2_FLAG_CHANGED;
1915 * Mark a filesystem as changed
1917 _INLINE_ void ext2fs_mark_changed(ext2_filsys fs)
1919 fs->flags |= EXT2_FLAG_CHANGED;
1923 * Check to see if a filesystem has changed
1925 _INLINE_ int ext2fs_test_changed(ext2_filsys fs)
1927 return (fs->flags & EXT2_FLAG_CHANGED);
1931 * Mark a filesystem as valid
1933 _INLINE_ void ext2fs_mark_valid(ext2_filsys fs)
1935 fs->flags |= EXT2_FLAG_VALID;
1939 * Mark a filesystem as NOT valid
1941 _INLINE_ void ext2fs_unmark_valid(ext2_filsys fs)
1943 fs->flags &= ~EXT2_FLAG_VALID;
1947 * Check to see if a filesystem is valid
1949 _INLINE_ int ext2fs_test_valid(ext2_filsys fs)
1951 return (fs->flags & EXT2_FLAG_VALID);
1955 * Mark the inode bitmap as dirty
1957 _INLINE_ void ext2fs_mark_ib_dirty(ext2_filsys fs)
1959 fs->flags |= EXT2_FLAG_IB_DIRTY | EXT2_FLAG_CHANGED;
1963 * Mark the block bitmap as dirty
1965 _INLINE_ void ext2fs_mark_bb_dirty(ext2_filsys fs)
1967 fs->flags |= EXT2_FLAG_BB_DIRTY | EXT2_FLAG_CHANGED;
1971 * Check to see if a filesystem's inode bitmap is dirty
1973 _INLINE_ int ext2fs_test_ib_dirty(ext2_filsys fs)
1975 return (fs->flags & EXT2_FLAG_IB_DIRTY);
1979 * Check to see if a filesystem's block bitmap is dirty
1981 _INLINE_ int ext2fs_test_bb_dirty(ext2_filsys fs)
1983 return (fs->flags & EXT2_FLAG_BB_DIRTY);
1987 * Return the group # of a block
1989 _INLINE_ dgrp_t ext2fs_group_of_blk(ext2_filsys fs, blk_t blk)
1991 return ext2fs_group_of_blk2(fs, blk);
1994 * Return the group # of an inode number
1996 _INLINE_ dgrp_t ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino)
1998 return (ino - 1) / fs->super->s_inodes_per_group;
2002 * Return the first block (inclusive) in a group
2004 _INLINE_ blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group)
2006 return (blk_t) ext2fs_group_first_block2(fs, group);
2010 * Return the last block (inclusive) in a group
2012 _INLINE_ blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group)
2014 return (blk_t) ext2fs_group_last_block2(fs, group);
2017 _INLINE_ blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
2018 struct ext2_inode *inode)
2020 return (blk_t) ext2fs_inode_data_blocks2(fs, inode);
2023 _INLINE_ int ext2fs_htree_intnode_maxrecs(ext2_filsys fs, int blocks)
2025 return blocks * ((fs->blocksize - 8) / sizeof(struct ext2_dx_entry));
2029 * This is an efficient, overflow safe way of calculating ceil((1.0 * a) / b)
2031 _INLINE_ unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b)
2035 return ((a - 1) / b) + 1;
2038 _INLINE_ __u64 ext2fs_div64_ceil(__u64 a, __u64 b)
2042 return ((a - 1) / b) + 1;
2045 _INLINE_ int ext2fs_dirent_name_len(const struct ext2_dir_entry *entry)
2047 return entry->name_len & 0xff;
2050 _INLINE_ void ext2fs_dirent_set_name_len(struct ext2_dir_entry *entry, int len)
2052 entry->name_len = (entry->name_len & 0xff00) | (len & 0xff);
2055 _INLINE_ int ext2fs_dirent_file_type(const struct ext2_dir_entry *entry)
2057 return entry->name_len >> 8;
2060 _INLINE_ void ext2fs_dirent_set_file_type(struct ext2_dir_entry *entry, int type)
2062 entry->name_len = (entry->name_len & 0xff) | (type << 8);
2065 _INLINE_ struct ext2_inode *ext2fs_inode(struct ext2_inode_large * large_inode)
2067 /* It is always safe to convert large inode to a small inode */
2068 return (struct ext2_inode *) large_inode;
2071 _INLINE_ const struct ext2_inode *
2072 ext2fs_const_inode(const struct ext2_inode_large * large_inode)
2074 /* It is always safe to convert large inode to a small inode */
2075 return (const struct ext2_inode *) large_inode;
2081 /* htree levels for ext4 */
2082 #define EXT4_HTREE_LEVEL_COMPAT 2
2083 #define EXT4_HTREE_LEVEL 3
2085 static inline unsigned int ext2_dir_htree_level(ext2_filsys fs)
2087 if (ext2fs_has_feature_largedir(fs->super))
2088 return EXT4_HTREE_LEVEL;
2090 return EXT4_HTREE_LEVEL_COMPAT;
2097 #endif /* _EXT2FS_EXT2FS_H */