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 typedef struct ext2fs_struct_generic_bitmap *ext2fs_generic_bitmap;
115 typedef struct ext2fs_struct_generic_bitmap *ext2fs_inode_bitmap;
116 typedef struct ext2fs_struct_generic_bitmap *ext2fs_block_bitmap;
118 #define EXT2_FIRST_INODE(s) EXT2_FIRST_INO(s)
122 * Badblocks list definitions
125 typedef struct ext2_struct_u32_list *ext2_badblocks_list;
126 typedef struct ext2_struct_u32_iterate *ext2_badblocks_iterate;
128 typedef struct ext2_struct_u32_list *ext2_u32_list;
129 typedef struct ext2_struct_u32_iterate *ext2_u32_iterate;
132 typedef struct ext2_struct_u32_list *badblocks_list;
133 typedef struct ext2_struct_u32_iterate *badblocks_iterate;
135 #define BADBLOCKS_FLAG_DIRTY 1
138 * ext2_dblist structure and abstractions (see dblist.c)
140 struct ext2_db_entry2 {
143 e2_blkcnt_t blockcnt;
146 /* Ye Olde 32-bit version */
147 struct ext2_db_entry {
153 typedef struct ext2_struct_dblist *ext2_dblist;
155 #define DBLIST_ABORT 1
158 * ext2_fileio definitions
161 #define EXT2_FILE_WRITE 0x0001
162 #define EXT2_FILE_CREATE 0x0002
164 #define EXT2_FILE_MASK 0x00FF
166 #define EXT2_FILE_BUF_DIRTY 0x4000
167 #define EXT2_FILE_BUF_VALID 0x2000
169 typedef struct ext2_file *ext2_file_t;
171 #define EXT2_SEEK_SET 0
172 #define EXT2_SEEK_CUR 1
173 #define EXT2_SEEK_END 2
176 * Flags for the ext2_filsys structure and for ext2fs_open()
178 #define EXT2_FLAG_RW 0x01
179 #define EXT2_FLAG_CHANGED 0x02
180 #define EXT2_FLAG_DIRTY 0x04
181 #define EXT2_FLAG_VALID 0x08
182 #define EXT2_FLAG_IB_DIRTY 0x10
183 #define EXT2_FLAG_BB_DIRTY 0x20
184 #define EXT2_FLAG_SWAP_BYTES 0x40
185 #define EXT2_FLAG_SWAP_BYTES_READ 0x80
186 #define EXT2_FLAG_SWAP_BYTES_WRITE 0x100
187 #define EXT2_FLAG_MASTER_SB_ONLY 0x200
188 #define EXT2_FLAG_FORCE 0x400
189 #define EXT2_FLAG_SUPER_ONLY 0x800
190 #define EXT2_FLAG_JOURNAL_DEV_OK 0x1000
191 #define EXT2_FLAG_IMAGE_FILE 0x2000
192 #define EXT2_FLAG_EXCLUSIVE 0x4000
193 #define EXT2_FLAG_SOFTSUPP_FEATURES 0x8000
194 #define EXT2_FLAG_NOFREE_ON_ERROR 0x10000
195 #define EXT2_FLAG_64BITS 0x20000
196 #define EXT2_FLAG_PRINT_PROGRESS 0x40000
197 #define EXT2_FLAG_DIRECT_IO 0x80000
198 #define EXT2_FLAG_SKIP_MMP 0x100000
199 #define EXT2_FLAG_IGNORE_CSUM_ERRORS 0x200000
200 #define EXT2_FLAG_SHARE_DUP 0x400000
201 #define EXT2_FLAG_IGNORE_SB_ERRORS 0x800000
204 * Special flag in the ext2 inode i_flag field that means that this is
205 * a new inode. (So that ext2_write_inode() can clear extra fields.)
207 #define EXT2_NEW_INODE_FL 0x80000000
210 * Flags for mkjournal
212 #define EXT2_MKJOURNAL_V1_SUPER 0x0000001 /* create V1 superblock (deprecated) */
213 #define EXT2_MKJOURNAL_LAZYINIT 0x0000002 /* don't zero journal inode before use*/
214 #define EXT2_MKJOURNAL_NO_MNT_CHECK 0x0000004 /* don't check mount status */
216 struct blk_alloc_ctx;
217 struct opaque_ext2_group_desc;
219 struct struct_ext2_filsys {
224 struct ext2_super_block * super;
225 unsigned int blocksize;
227 dgrp_t group_desc_count;
228 unsigned long desc_blocks;
229 struct opaque_ext2_group_desc * group_desc;
230 unsigned int inode_blocks_per_group;
231 ext2fs_inode_bitmap inode_map;
232 ext2fs_block_bitmap block_map;
233 /* XXX FIXME-64: not 64-bit safe, but not used? */
234 errcode_t (*get_blocks)(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
235 errcode_t (*check_directory)(ext2_filsys fs, ext2_ino_t ino);
236 errcode_t (*write_bitmaps)(ext2_filsys fs);
237 errcode_t (*read_inode)(ext2_filsys fs, ext2_ino_t ino,
238 struct ext2_inode *inode);
239 errcode_t (*write_inode)(ext2_filsys fs, ext2_ino_t ino,
240 struct ext2_inode *inode);
241 ext2_badblocks_list badblocks;
243 __u32 stride; /* for mke2fs */
244 struct ext2_super_block * orig_super;
245 struct ext2_image_hdr * image_header;
248 int cluster_ratio_bits;
249 __u16 default_bitmap_type;
252 * Reserved for future expansion
257 * Reserved for the use of the calling application.
264 struct ext2_inode_cache *icache;
268 * More callback functions
270 errcode_t (*get_alloc_block)(ext2_filsys fs, blk64_t goal,
272 errcode_t (*get_alloc_block2)(ext2_filsys fs, blk64_t goal,
273 blk64_t *ret, struct blk_alloc_ctx *ctx);
274 void (*block_alloc_stats)(ext2_filsys fs, blk64_t blk, int inuse);
277 * Buffers for Multiple mount protection(MMP) block.
284 * Time at which e2fsck last updated the MMP block.
286 long mmp_last_written;
288 /* progress operation functions */
289 struct ext2fs_progress_ops *progress_ops;
291 /* Precomputed FS UUID checksum for seeding other checksums */
294 io_channel journal_io;
297 /* New block range allocation hooks */
298 errcode_t (*new_range)(ext2_filsys fs, int flags, blk64_t goal,
299 blk64_t len, blk64_t *pblk, blk64_t *plen);
300 void (*block_alloc_stats_range)(ext2_filsys fs, blk64_t blk, blk_t num,
303 /* hashmap for SHA of data blocks */
304 struct ext2fs_hashmap* block_sha_map;
307 #if EXT2_FLAT_INCLUDES
308 #include "e2_bitops.h"
310 #include <ext2fs/bitops.h>
314 * 64-bit bitmap backend types
316 #define EXT2FS_BMAP64_BITARRAY 1
317 #define EXT2FS_BMAP64_RBTREE 2
318 #define EXT2FS_BMAP64_AUTODIR 3
321 * Return flags for the block iterator functions
323 #define BLOCK_CHANGED 1
324 #define BLOCK_ABORT 2
325 #define BLOCK_ERROR 4
326 #define BLOCK_INLINE_DATA_CHANGED 8
329 * Block interate flags
331 * BLOCK_FLAG_APPEND, or BLOCK_FLAG_HOLE, indicates that the interator
332 * function should be called on blocks where the block number is zero.
333 * This is used by ext2fs_expand_dir() to be able to add a new block
334 * to an inode. It can also be used for programs that want to be able
335 * to deal with files that contain "holes".
337 * BLOCK_FLAG_DEPTH_TRAVERSE indicates that the iterator function for
338 * the indirect, doubly indirect, etc. blocks should be called after
339 * all of the blocks contained in the indirect blocks are processed.
340 * This is useful if you are going to be deallocating blocks from an
343 * BLOCK_FLAG_DATA_ONLY indicates that the iterator function should be
344 * called for data blocks only.
346 * BLOCK_FLAG_READ_ONLY is a promise by the caller that it will not
347 * modify returned block number.
349 * BLOCK_FLAG_NO_LARGE is for internal use only. It informs
350 * ext2fs_block_iterate2 that large files won't be accepted.
352 #define BLOCK_FLAG_APPEND 1
353 #define BLOCK_FLAG_HOLE 1
354 #define BLOCK_FLAG_DEPTH_TRAVERSE 2
355 #define BLOCK_FLAG_DATA_ONLY 4
356 #define BLOCK_FLAG_READ_ONLY 8
358 #define BLOCK_FLAG_NO_LARGE 0x1000
361 * Magic "block count" return values for the block iterator function.
363 #define BLOCK_COUNT_IND (-1)
364 #define BLOCK_COUNT_DIND (-2)
365 #define BLOCK_COUNT_TIND (-3)
366 #define BLOCK_COUNT_TRANSLATOR (-4)
368 #define BLOCK_ALLOC_UNKNOWN 0
369 #define BLOCK_ALLOC_DATA 1
370 #define BLOCK_ALLOC_METADATA 2
372 struct blk_alloc_ctx {
374 struct ext2_inode *inode;
381 * Flags for ext2fs_move_blocks
383 #define EXT2_BMOVE_GET_DBLIST 0x0001
384 #define EXT2_BMOVE_DEBUG 0x0002
388 * Generic (non-filesystem layout specific) extents structure
391 #define EXT2_EXTENT_FLAGS_LEAF 0x0001
392 #define EXT2_EXTENT_FLAGS_UNINIT 0x0002
393 #define EXT2_EXTENT_FLAGS_SECOND_VISIT 0x0004
395 struct ext2fs_extent {
396 blk64_t e_pblk; /* first physical block */
397 blk64_t e_lblk; /* first logical block extent covers */
398 __u32 e_len; /* number of blocks covered by extent */
399 __u32 e_flags; /* extent flags */
402 typedef struct ext2_extent_handle *ext2_extent_handle_t;
403 typedef struct ext2_extent_path *ext2_extent_path_t;
406 * Flags used by ext2fs_extent_get()
408 #define EXT2_EXTENT_CURRENT 0x0000
409 #define EXT2_EXTENT_MOVE_MASK 0x000F
410 #define EXT2_EXTENT_ROOT 0x0001
411 #define EXT2_EXTENT_LAST_LEAF 0x0002
412 #define EXT2_EXTENT_FIRST_SIB 0x0003
413 #define EXT2_EXTENT_LAST_SIB 0x0004
414 #define EXT2_EXTENT_NEXT_SIB 0x0005
415 #define EXT2_EXTENT_PREV_SIB 0x0006
416 #define EXT2_EXTENT_NEXT_LEAF 0x0007
417 #define EXT2_EXTENT_PREV_LEAF 0x0008
418 #define EXT2_EXTENT_NEXT 0x0009
419 #define EXT2_EXTENT_PREV 0x000A
420 #define EXT2_EXTENT_UP 0x000B
421 #define EXT2_EXTENT_DOWN 0x000C
422 #define EXT2_EXTENT_DOWN_AND_LAST 0x000D
425 * Flags used by ext2fs_extent_insert()
427 #define EXT2_EXTENT_INSERT_AFTER 0x0001 /* insert after handle loc'n */
428 #define EXT2_EXTENT_INSERT_NOSPLIT 0x0002 /* insert may not cause split */
431 * Flags used by ext2fs_extent_delete()
433 #define EXT2_EXTENT_DELETE_KEEP_EMPTY 0x001 /* keep node if last extent gone */
436 * Flags used by ext2fs_extent_set_bmap()
438 #define EXT2_EXTENT_SET_BMAP_UNINIT 0x0001
441 * Data structure returned by ext2fs_extent_get_info()
443 struct ext2_extent_info {
453 __u32 max_uninit_len;
457 * Flags for directory block reading and writing functions
459 #define EXT2_DIRBLOCK_V2_STRUCT 0x0001
462 * Return flags for the directory iterator functions
464 #define DIRENT_CHANGED 1
465 #define DIRENT_ABORT 2
466 #define DIRENT_ERROR 3
469 * Directory iterator flags
472 #define DIRENT_FLAG_INCLUDE_EMPTY 1
473 #define DIRENT_FLAG_INCLUDE_REMOVED 2
474 #define DIRENT_FLAG_INCLUDE_CSUM 4
475 #define DIRENT_FLAG_INCLUDE_INLINE_DATA 8
477 #define DIRENT_DOT_FILE 1
478 #define DIRENT_DOT_DOT_FILE 2
479 #define DIRENT_OTHER_FILE 3
480 #define DIRENT_DELETED_FILE 4
481 #define DIRENT_CHECKSUM 5
484 * Inode scan definitions
486 typedef struct ext2_struct_inode_scan *ext2_inode_scan;
491 #define EXT2_SF_CHK_BADBLOCKS 0x0001
492 #define EXT2_SF_BAD_INODE_BLK 0x0002
493 #define EXT2_SF_BAD_EXTRA_BYTES 0x0004
494 #define EXT2_SF_SKIP_MISSING_ITABLE 0x0008
495 #define EXT2_SF_DO_LAZY 0x0010
496 #define EXT2_SF_WARN_GARBAGE_INODES 0x0020
499 * ext2fs_check_if_mounted flags
501 #define EXT2_MF_MOUNTED 1
502 #define EXT2_MF_ISROOT 2
503 #define EXT2_MF_READONLY 4
504 #define EXT2_MF_SWAP 8
505 #define EXT2_MF_BUSY 16
508 * Ext2/linux mode flags. We define them here so that we don't need
509 * to depend on the OS's sys/stat.h, since we may be compiling on a
512 #define LINUX_S_IFMT 00170000
513 #define LINUX_S_IFSOCK 0140000
514 #define LINUX_S_IFLNK 0120000
515 #define LINUX_S_IFREG 0100000
516 #define LINUX_S_IFBLK 0060000
517 #define LINUX_S_IFDIR 0040000
518 #define LINUX_S_IFCHR 0020000
519 #define LINUX_S_IFIFO 0010000
520 #define LINUX_S_ISUID 0004000
521 #define LINUX_S_ISGID 0002000
522 #define LINUX_S_ISVTX 0001000
524 #define LINUX_S_IRWXU 00700
525 #define LINUX_S_IRUSR 00400
526 #define LINUX_S_IWUSR 00200
527 #define LINUX_S_IXUSR 00100
529 #define LINUX_S_IRWXG 00070
530 #define LINUX_S_IRGRP 00040
531 #define LINUX_S_IWGRP 00020
532 #define LINUX_S_IXGRP 00010
534 #define LINUX_S_IRWXO 00007
535 #define LINUX_S_IROTH 00004
536 #define LINUX_S_IWOTH 00002
537 #define LINUX_S_IXOTH 00001
539 #define LINUX_S_ISLNK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFLNK)
540 #define LINUX_S_ISREG(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFREG)
541 #define LINUX_S_ISDIR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFDIR)
542 #define LINUX_S_ISCHR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFCHR)
543 #define LINUX_S_ISBLK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFBLK)
544 #define LINUX_S_ISFIFO(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFIFO)
545 #define LINUX_S_ISSOCK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFSOCK)
548 * ext2 size of an inode
550 #define EXT2_I_SIZE(i) ((i)->i_size | ((__u64) (i)->i_size_high << 32))
553 * ext2_icount_t abstraction
555 #define EXT2_ICOUNT_OPT_INCREMENT 0x01
556 #define EXT2_ICOUNT_OPT_FULLMAP 0x02
558 typedef struct ext2_icount *ext2_icount_t;
561 * Flags for ext2fs_bmap
563 #define BMAP_ALLOC 0x0001
564 #define BMAP_SET 0x0002
565 #define BMAP_UNINIT 0x0004
566 #define BMAP_ZERO 0x0008
569 * Returned flags from ext2fs_bmap
571 #define BMAP_RET_UNINIT 0x0001
574 * Flags for imager.c functions
576 #define IMAGER_FLAG_INODEMAP 1
577 #define IMAGER_FLAG_SPARSEWRITE 2
580 * For checking structure magic numbers...
583 #define EXT2_CHECK_MAGIC(struct, code) \
584 if ((struct)->magic != (code)) return (code)
587 * Features supported by this version of the library
589 #define EXT2_LIB_FEATURE_COMPAT_SUPP (EXT2_FEATURE_COMPAT_DIR_PREALLOC|\
590 EXT2_FEATURE_COMPAT_IMAGIC_INODES|\
591 EXT3_FEATURE_COMPAT_HAS_JOURNAL|\
592 EXT2_FEATURE_COMPAT_RESIZE_INODE|\
593 EXT2_FEATURE_COMPAT_DIR_INDEX|\
594 EXT2_FEATURE_COMPAT_EXT_ATTR|\
595 EXT4_FEATURE_COMPAT_SPARSE_SUPER2)
598 #define EXT4_LIB_INCOMPAT_MMP EXT4_FEATURE_INCOMPAT_MMP
600 #define EXT4_LIB_INCOMPAT_MMP (0)
603 #define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\
604 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\
605 EXT2_FEATURE_INCOMPAT_META_BG|\
606 EXT3_FEATURE_INCOMPAT_RECOVER|\
607 EXT3_FEATURE_INCOMPAT_EXTENTS|\
608 EXT4_FEATURE_INCOMPAT_FLEX_BG|\
609 EXT4_FEATURE_INCOMPAT_EA_INODE|\
610 EXT4_LIB_INCOMPAT_MMP|\
611 EXT4_FEATURE_INCOMPAT_64BIT|\
612 EXT4_FEATURE_INCOMPAT_INLINE_DATA|\
613 EXT4_FEATURE_INCOMPAT_ENCRYPT|\
614 EXT4_FEATURE_INCOMPAT_CSUM_SEED|\
615 EXT4_FEATURE_INCOMPAT_LARGEDIR)
617 #define EXT2_LIB_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|\
618 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|\
619 EXT2_FEATURE_RO_COMPAT_LARGE_FILE|\
620 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|\
621 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|\
622 EXT4_FEATURE_RO_COMPAT_GDT_CSUM|\
623 EXT4_FEATURE_RO_COMPAT_BIGALLOC|\
624 EXT4_FEATURE_RO_COMPAT_QUOTA|\
625 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM|\
626 EXT4_FEATURE_RO_COMPAT_READONLY |\
627 EXT4_FEATURE_RO_COMPAT_PROJECT |\
628 EXT4_FEATURE_RO_COMPAT_SHARED_BLOCKS |\
629 EXT4_FEATURE_RO_COMPAT_VERITY)
632 * These features are only allowed if EXT2_FLAG_SOFTSUPP_FEATURES is passed
635 #define EXT2_LIB_SOFTSUPP_INCOMPAT (0)
636 #define EXT2_LIB_SOFTSUPP_RO_COMPAT (EXT4_FEATURE_RO_COMPAT_REPLICA)
639 /* Translate a block number to a cluster number */
640 #define EXT2FS_CLUSTER_RATIO(fs) (1 << (fs)->cluster_ratio_bits)
641 #define EXT2FS_CLUSTER_MASK(fs) (EXT2FS_CLUSTER_RATIO(fs) - 1)
642 #define EXT2FS_B2C(fs, blk) ((blk) >> (fs)->cluster_ratio_bits)
643 /* Translate a cluster number to a block number */
644 #define EXT2FS_C2B(fs, cluster) ((cluster) << (fs)->cluster_ratio_bits)
645 /* Translate # of blks to # of clusters */
646 #define EXT2FS_NUM_B2C(fs, blks) (((blks) + EXT2FS_CLUSTER_MASK(fs)) >> \
647 (fs)->cluster_ratio_bits)
649 #if defined(HAVE_FSTAT64) && !defined(__OSX_AVAILABLE_BUT_DEPRECATED)
650 typedef struct stat64 ext2fs_struct_stat;
652 typedef struct stat ext2fs_struct_stat;
656 * For ext2fs_close2() and ext2fs_flush2(), this flag allows you to
657 * avoid the fsync call.
659 #define EXT2_FLAG_FLUSH_NO_SYNC 1
662 * Modify and iterate extended attributes
664 struct ext2_xattr_handle;
665 #define XATTR_ABORT 1
666 #define XATTR_CHANGED 2
669 * function prototypes
671 static inline int ext2fs_has_group_desc_csum(ext2_filsys fs)
673 return ext2fs_has_feature_metadata_csum(fs->super) ||
674 ext2fs_has_feature_gdt_csum(fs->super);
677 /* The LARGE_FILE feature should be set if we have stored files 2GB+ in size */
678 static inline int ext2fs_needs_large_file_feature(unsigned long long file_size)
680 return file_size >= 0x80000000ULL;
684 extern void ext2fs_clear_block_uninit(ext2_filsys fs, dgrp_t group);
685 extern errcode_t ext2fs_new_inode(ext2_filsys fs, ext2_ino_t dir, int mode,
686 ext2fs_inode_bitmap map, ext2_ino_t *ret);
687 extern errcode_t ext2fs_new_block(ext2_filsys fs, blk_t goal,
688 ext2fs_block_bitmap map, blk_t *ret);
689 extern errcode_t ext2fs_new_block2(ext2_filsys fs, blk64_t goal,
690 ext2fs_block_bitmap map, blk64_t *ret);
691 extern errcode_t ext2fs_new_block3(ext2_filsys fs, blk64_t goal,
692 ext2fs_block_bitmap map, blk64_t *ret,
693 struct blk_alloc_ctx *ctx);
694 extern errcode_t ext2fs_get_free_blocks(ext2_filsys fs, blk_t start,
695 blk_t finish, int num,
696 ext2fs_block_bitmap map,
698 extern errcode_t ext2fs_get_free_blocks2(ext2_filsys fs, blk64_t start,
699 blk64_t finish, int num,
700 ext2fs_block_bitmap map,
702 extern errcode_t ext2fs_alloc_block(ext2_filsys fs, blk_t goal,
703 char *block_buf, blk_t *ret);
704 extern errcode_t ext2fs_alloc_block2(ext2_filsys fs, blk64_t goal,
705 char *block_buf, blk64_t *ret);
706 extern errcode_t ext2fs_alloc_block3(ext2_filsys fs, blk64_t goal,
707 char *block_buf, blk64_t *ret,
708 struct blk_alloc_ctx *ctx);
710 extern void ext2fs_set_alloc_block_callback(ext2_filsys fs,
711 errcode_t (*func)(ext2_filsys fs,
714 errcode_t (**old)(ext2_filsys fs,
717 blk64_t ext2fs_find_inode_goal(ext2_filsys fs, ext2_ino_t ino,
718 struct ext2_inode *inode, blk64_t lblk);
719 extern void ext2fs_set_new_range_callback(ext2_filsys fs,
720 errcode_t (*func)(ext2_filsys fs, int flags, blk64_t goal,
721 blk64_t len, blk64_t *pblk, blk64_t *plen),
722 errcode_t (**old)(ext2_filsys fs, int flags, blk64_t goal,
723 blk64_t len, blk64_t *pblk, blk64_t *plen));
724 extern void ext2fs_set_block_alloc_stats_range_callback(ext2_filsys fs,
725 void (*func)(ext2_filsys fs, blk64_t blk,
726 blk_t num, int inuse),
727 void (**old)(ext2_filsys fs, blk64_t blk,
728 blk_t num, int inuse));
729 #define EXT2_NEWRANGE_FIXED_GOAL (0x1)
730 #define EXT2_NEWRANGE_MIN_LENGTH (0x2)
731 #define EXT2_NEWRANGE_ALL_FLAGS (0x3)
732 errcode_t ext2fs_new_range(ext2_filsys fs, int flags, blk64_t goal,
733 blk64_t len, ext2fs_block_bitmap map, blk64_t *pblk,
735 #define EXT2_ALLOCRANGE_FIXED_GOAL (0x1)
736 #define EXT2_ALLOCRANGE_ZERO_BLOCKS (0x2)
737 #define EXT2_ALLOCRANGE_ALL_FLAGS (0x3)
738 errcode_t ext2fs_alloc_range(ext2_filsys fs, int flags, blk64_t goal,
739 blk_t len, blk64_t *ret);
742 extern int ext2fs_reserve_super_and_bgd(ext2_filsys fs,
744 ext2fs_block_bitmap bmap);
745 extern void ext2fs_set_block_alloc_stats_callback(ext2_filsys fs,
746 void (*func)(ext2_filsys fs,
749 void (**old)(ext2_filsys fs,
754 void ext2fs_inode_alloc_stats(ext2_filsys fs, ext2_ino_t ino, int inuse);
755 void ext2fs_inode_alloc_stats2(ext2_filsys fs, ext2_ino_t ino,
756 int inuse, int isdir);
757 void ext2fs_block_alloc_stats(ext2_filsys fs, blk_t blk, int inuse);
758 void ext2fs_block_alloc_stats2(ext2_filsys fs, blk64_t blk, int inuse);
759 void ext2fs_block_alloc_stats_range(ext2_filsys fs, blk64_t blk,
760 blk_t num, int inuse);
763 extern errcode_t ext2fs_allocate_tables(ext2_filsys fs);
764 extern errcode_t ext2fs_allocate_group_table(ext2_filsys fs, dgrp_t group,
765 ext2fs_block_bitmap bmap);
768 extern errcode_t ext2fs_u32_list_create(ext2_u32_list *ret, int size);
769 extern errcode_t ext2fs_u32_list_add(ext2_u32_list bb, __u32 blk);
770 extern int ext2fs_u32_list_find(ext2_u32_list bb, __u32 blk);
771 extern int ext2fs_u32_list_test(ext2_u32_list bb, blk_t blk);
772 extern errcode_t ext2fs_u32_list_iterate_begin(ext2_u32_list bb,
773 ext2_u32_iterate *ret);
774 extern int ext2fs_u32_list_iterate(ext2_u32_iterate iter, blk_t *blk);
775 extern void ext2fs_u32_list_iterate_end(ext2_u32_iterate iter);
776 extern errcode_t ext2fs_u32_copy(ext2_u32_list src, ext2_u32_list *dest);
777 extern int ext2fs_u32_list_equal(ext2_u32_list bb1, ext2_u32_list bb2);
779 extern errcode_t ext2fs_badblocks_list_create(ext2_badblocks_list *ret,
781 extern errcode_t ext2fs_badblocks_list_add(ext2_badblocks_list bb,
783 extern int ext2fs_badblocks_list_test(ext2_badblocks_list bb,
785 extern int ext2fs_u32_list_del(ext2_u32_list bb, __u32 blk);
786 extern void ext2fs_badblocks_list_del(ext2_u32_list bb, __u32 blk);
788 ext2fs_badblocks_list_iterate_begin(ext2_badblocks_list bb,
789 ext2_badblocks_iterate *ret);
790 extern int ext2fs_badblocks_list_iterate(ext2_badblocks_iterate iter,
792 extern void ext2fs_badblocks_list_iterate_end(ext2_badblocks_iterate iter);
793 extern errcode_t ext2fs_badblocks_copy(ext2_badblocks_list src,
794 ext2_badblocks_list *dest);
795 extern int ext2fs_badblocks_equal(ext2_badblocks_list bb1,
796 ext2_badblocks_list bb2);
797 extern int ext2fs_u32_list_count(ext2_u32_list bb);
800 extern errcode_t badblocks_list_create(badblocks_list *ret, int size);
801 extern errcode_t badblocks_list_add(badblocks_list bb, blk_t blk);
802 extern int badblocks_list_test(badblocks_list bb, blk_t blk);
803 extern errcode_t badblocks_list_iterate_begin(badblocks_list bb,
804 badblocks_iterate *ret);
805 extern int badblocks_list_iterate(badblocks_iterate iter, blk_t *blk);
806 extern void badblocks_list_iterate_end(badblocks_iterate iter);
807 extern void badblocks_list_free(badblocks_list bb);
810 extern errcode_t ext2fs_update_bb_inode(ext2_filsys fs,
811 ext2_badblocks_list bb_list);
814 extern void ext2fs_free_block_bitmap(ext2fs_block_bitmap bitmap);
815 extern void ext2fs_free_inode_bitmap(ext2fs_inode_bitmap bitmap);
816 extern errcode_t ext2fs_copy_bitmap(ext2fs_generic_bitmap src,
817 ext2fs_generic_bitmap *dest);
818 extern errcode_t ext2fs_write_inode_bitmap(ext2_filsys fs);
819 extern errcode_t ext2fs_write_block_bitmap (ext2_filsys fs);
820 extern errcode_t ext2fs_read_inode_bitmap (ext2_filsys fs);
821 extern errcode_t ext2fs_read_block_bitmap(ext2_filsys fs);
822 extern errcode_t ext2fs_allocate_block_bitmap(ext2_filsys fs,
824 ext2fs_block_bitmap *ret);
825 extern errcode_t ext2fs_allocate_subcluster_bitmap(ext2_filsys fs,
827 ext2fs_block_bitmap *ret);
828 extern int ext2fs_get_bitmap_granularity(ext2fs_block_bitmap bitmap);
829 extern errcode_t ext2fs_allocate_inode_bitmap(ext2_filsys fs,
831 ext2fs_inode_bitmap *ret);
832 extern errcode_t ext2fs_fudge_inode_bitmap_end(ext2fs_inode_bitmap bitmap,
833 ext2_ino_t end, ext2_ino_t *oend);
834 extern errcode_t ext2fs_fudge_block_bitmap_end(ext2fs_block_bitmap bitmap,
835 blk_t end, blk_t *oend);
836 extern errcode_t ext2fs_fudge_block_bitmap_end2(ext2fs_block_bitmap bitmap,
837 blk64_t end, blk64_t *oend);
838 extern void ext2fs_clear_inode_bitmap(ext2fs_inode_bitmap bitmap);
839 extern void ext2fs_clear_block_bitmap(ext2fs_block_bitmap bitmap);
840 extern errcode_t ext2fs_read_bitmaps(ext2_filsys fs);
841 extern errcode_t ext2fs_write_bitmaps(ext2_filsys fs);
842 extern errcode_t ext2fs_resize_inode_bitmap(__u32 new_end, __u32 new_real_end,
843 ext2fs_inode_bitmap bmap);
844 extern errcode_t ext2fs_resize_inode_bitmap2(__u64 new_end,
846 ext2fs_inode_bitmap bmap);
847 extern errcode_t ext2fs_resize_block_bitmap(__u32 new_end, __u32 new_real_end,
848 ext2fs_block_bitmap bmap);
849 extern errcode_t ext2fs_resize_block_bitmap2(__u64 new_end,
851 ext2fs_block_bitmap bmap);
852 extern errcode_t ext2fs_compare_block_bitmap(ext2fs_block_bitmap bm1,
853 ext2fs_block_bitmap bm2);
854 extern errcode_t ext2fs_compare_inode_bitmap(ext2fs_inode_bitmap bm1,
855 ext2fs_inode_bitmap bm2);
856 extern errcode_t ext2fs_set_inode_bitmap_range(ext2fs_inode_bitmap bmap,
857 ext2_ino_t start, unsigned int num,
859 extern errcode_t ext2fs_set_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
860 __u64 start, size_t num,
862 extern errcode_t ext2fs_get_inode_bitmap_range(ext2fs_inode_bitmap bmap,
863 ext2_ino_t start, unsigned int num,
865 extern errcode_t ext2fs_get_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
866 __u64 start, size_t num,
868 extern errcode_t ext2fs_set_block_bitmap_range(ext2fs_block_bitmap bmap,
869 blk_t start, unsigned int num,
871 extern errcode_t ext2fs_set_block_bitmap_range2(ext2fs_block_bitmap bmap,
872 blk64_t start, size_t num,
874 extern errcode_t ext2fs_get_block_bitmap_range(ext2fs_block_bitmap bmap,
875 blk_t start, unsigned int num,
877 extern errcode_t ext2fs_get_block_bitmap_range2(ext2fs_block_bitmap bmap,
878 blk64_t start, size_t num,
882 extern __u32 ext2fs_inode_bitmap_checksum(ext2_filsys fs, dgrp_t group);
883 extern __u32 ext2fs_block_bitmap_checksum(ext2_filsys fs, dgrp_t group);
884 extern dgrp_t ext2fs_group_of_blk2(ext2_filsys fs, blk64_t);
885 extern blk64_t ext2fs_group_first_block2(ext2_filsys fs, dgrp_t group);
886 extern blk64_t ext2fs_group_last_block2(ext2_filsys fs, dgrp_t group);
887 extern int ext2fs_group_blocks_count(ext2_filsys fs, dgrp_t group);
888 extern blk64_t ext2fs_inode_data_blocks2(ext2_filsys fs,
889 struct ext2_inode *inode);
890 extern blk64_t ext2fs_inode_i_blocks(ext2_filsys fs,
891 struct ext2_inode *inode);
892 extern blk64_t ext2fs_blocks_count(struct ext2_super_block *super);
893 extern void ext2fs_blocks_count_set(struct ext2_super_block *super,
895 extern void ext2fs_blocks_count_add(struct ext2_super_block *super,
897 extern blk64_t ext2fs_r_blocks_count(struct ext2_super_block *super);
898 extern void ext2fs_r_blocks_count_set(struct ext2_super_block *super,
900 extern void ext2fs_r_blocks_count_add(struct ext2_super_block *super,
902 extern blk64_t ext2fs_free_blocks_count(struct ext2_super_block *super);
903 extern void ext2fs_free_blocks_count_set(struct ext2_super_block *super,
905 extern void ext2fs_free_blocks_count_add(struct ext2_super_block *super,
907 /* Block group descriptor accessor functions */
908 extern struct ext2_group_desc *ext2fs_group_desc(ext2_filsys fs,
909 struct opaque_ext2_group_desc *gdp,
911 extern blk64_t ext2fs_block_bitmap_csum(ext2_filsys fs, dgrp_t group);
912 extern blk64_t ext2fs_block_bitmap_loc(ext2_filsys fs, dgrp_t group);
913 extern void ext2fs_block_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
915 extern __u32 ext2fs_inode_bitmap_csum(ext2_filsys fs, dgrp_t group);
916 extern blk64_t ext2fs_inode_bitmap_loc(ext2_filsys fs, dgrp_t group);
917 extern void ext2fs_inode_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
919 extern blk64_t ext2fs_inode_table_loc(ext2_filsys fs, dgrp_t group);
920 extern void ext2fs_inode_table_loc_set(ext2_filsys fs, dgrp_t group,
922 extern __u32 ext2fs_bg_free_blocks_count(ext2_filsys fs, dgrp_t group);
923 extern void ext2fs_bg_free_blocks_count_set(ext2_filsys fs, dgrp_t group,
925 extern __u32 ext2fs_bg_free_inodes_count(ext2_filsys fs, dgrp_t group);
926 extern void ext2fs_bg_free_inodes_count_set(ext2_filsys fs, dgrp_t group,
928 extern __u32 ext2fs_bg_used_dirs_count(ext2_filsys fs, dgrp_t group);
929 extern void ext2fs_bg_used_dirs_count_set(ext2_filsys fs, dgrp_t group,
931 extern __u32 ext2fs_bg_itable_unused(ext2_filsys fs, dgrp_t group);
932 extern void ext2fs_bg_itable_unused_set(ext2_filsys fs, dgrp_t group,
934 extern __u16 ext2fs_bg_flags(ext2_filsys fs, dgrp_t group);
935 extern void ext2fs_bg_flags_zap(ext2_filsys fs, dgrp_t group);
936 extern int ext2fs_bg_flags_test(ext2_filsys fs, dgrp_t group, __u16 bg_flag);
937 extern void ext2fs_bg_flags_set(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
938 extern void ext2fs_bg_flags_clear(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
939 extern __u16 ext2fs_bg_checksum(ext2_filsys fs, dgrp_t group);
940 extern void ext2fs_bg_checksum_set(ext2_filsys fs, dgrp_t group, __u16 checksum);
941 extern blk64_t ext2fs_file_acl_block(ext2_filsys fs,
942 const struct ext2_inode *inode);
943 extern void ext2fs_file_acl_block_set(ext2_filsys fs,
944 struct ext2_inode *inode, blk64_t blk);
945 extern errcode_t ext2fs_inode_size_set(ext2_filsys fs, struct ext2_inode *inode,
949 extern errcode_t ext2fs_block_iterate(ext2_filsys fs,
953 int (*func)(ext2_filsys fs,
958 errcode_t ext2fs_block_iterate2(ext2_filsys fs,
962 int (*func)(ext2_filsys fs,
964 e2_blkcnt_t blockcnt,
969 errcode_t ext2fs_block_iterate3(ext2_filsys fs,
973 int (*func)(ext2_filsys fs,
975 e2_blkcnt_t blockcnt,
982 extern errcode_t ext2fs_bmap(ext2_filsys fs, ext2_ino_t ino,
983 struct ext2_inode *inode,
984 char *block_buf, int bmap_flags,
985 blk_t block, blk_t *phys_blk);
986 extern errcode_t ext2fs_bmap2(ext2_filsys fs, ext2_ino_t ino,
987 struct ext2_inode *inode,
988 char *block_buf, int bmap_flags, blk64_t block,
989 int *ret_flags, blk64_t *phys_blk);
990 errcode_t ext2fs_map_cluster_block(ext2_filsys fs, ext2_ino_t ino,
991 struct ext2_inode *inode, blk64_t lblk,
996 extern errcode_t ext2fs_move_blocks(ext2_filsys fs,
997 ext2fs_block_bitmap reserve,
998 ext2fs_block_bitmap alloc_map,
1003 extern errcode_t ext2fs_check_desc(ext2_filsys fs);
1006 extern errcode_t ext2fs_close(ext2_filsys fs);
1007 extern errcode_t ext2fs_close2(ext2_filsys fs, int flags);
1008 extern errcode_t ext2fs_close_free(ext2_filsys *fs);
1009 extern errcode_t ext2fs_flush(ext2_filsys fs);
1010 extern errcode_t ext2fs_flush2(ext2_filsys fs, int flags);
1011 extern int ext2fs_bg_has_super(ext2_filsys fs, dgrp_t group_block);
1012 extern errcode_t ext2fs_super_and_bgd_loc2(ext2_filsys fs,
1014 blk64_t *ret_super_blk,
1015 blk64_t *ret_old_desc_blk,
1016 blk64_t *ret_new_desc_blk,
1017 blk_t *ret_used_blks);
1018 extern int ext2fs_super_and_bgd_loc(ext2_filsys fs,
1020 blk_t *ret_super_blk,
1021 blk_t *ret_old_desc_blk,
1022 blk_t *ret_new_desc_blk,
1024 extern void ext2fs_update_dynamic_rev(ext2_filsys fs);
1027 extern __u32 ext2fs_crc32_be(__u32 crc, unsigned char const *p, size_t len);
1028 extern __u32 ext2fs_crc32c_le(__u32 crc, unsigned char const *p, size_t len);
1031 extern void ext2fs_init_csum_seed(ext2_filsys fs);
1032 extern errcode_t ext2fs_mmp_csum_set(ext2_filsys fs, struct mmp_struct *mmp);
1033 extern int ext2fs_mmp_csum_verify(ext2_filsys, struct mmp_struct *mmp);
1034 extern int ext2fs_verify_csum_type(ext2_filsys fs, struct ext2_super_block *sb);
1035 extern errcode_t ext2fs_superblock_csum_set(ext2_filsys fs,
1036 struct ext2_super_block *sb);
1037 extern int ext2fs_superblock_csum_verify(ext2_filsys fs,
1038 struct ext2_super_block *sb);
1039 extern errcode_t ext2fs_ext_attr_block_csum_set(ext2_filsys fs,
1040 ext2_ino_t inum, blk64_t block,
1041 struct ext2_ext_attr_header *hdr);
1042 extern int ext2fs_ext_attr_block_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1044 struct ext2_ext_attr_header *hdr);
1045 #define EXT2_DIRENT_TAIL(block, blocksize) \
1046 ((struct ext2_dir_entry_tail *)(((char *)(block)) + \
1047 (blocksize) - sizeof(struct ext2_dir_entry_tail)))
1049 extern void ext2fs_initialize_dirent_tail(ext2_filsys fs,
1050 struct ext2_dir_entry_tail *t);
1051 extern int ext2fs_dirent_has_tail(ext2_filsys fs,
1052 struct ext2_dir_entry *dirent);
1053 extern int ext2fs_dirent_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1054 struct ext2_dir_entry *dirent);
1055 extern int ext2fs_dir_block_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1056 struct ext2_dir_entry *dirent);
1057 extern errcode_t ext2fs_dir_block_csum_set(ext2_filsys fs, ext2_ino_t inum,
1058 struct ext2_dir_entry *dirent);
1059 extern errcode_t ext2fs_get_dx_countlimit(ext2_filsys fs,
1060 struct ext2_dir_entry *dirent,
1061 struct ext2_dx_countlimit **cc,
1063 extern errcode_t ext2fs_extent_block_csum_set(ext2_filsys fs,
1065 struct ext3_extent_header *eh);
1066 extern int ext2fs_extent_block_csum_verify(ext2_filsys fs,
1068 struct ext3_extent_header *eh);
1069 extern errcode_t ext2fs_block_bitmap_csum_set(ext2_filsys fs, dgrp_t group,
1070 char *bitmap, int size);
1071 extern int ext2fs_block_bitmap_csum_verify(ext2_filsys fs, dgrp_t group,
1072 char *bitmap, int size);
1073 extern errcode_t ext2fs_inode_bitmap_csum_set(ext2_filsys fs, dgrp_t group,
1074 char *bitmap, int size);
1075 extern int ext2fs_inode_bitmap_csum_verify(ext2_filsys fs, dgrp_t group,
1076 char *bitmap, int size);
1077 extern errcode_t ext2fs_inode_csum_set(ext2_filsys fs, ext2_ino_t inum,
1078 struct ext2_inode_large *inode);
1079 extern int ext2fs_inode_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1080 struct ext2_inode_large *inode);
1081 extern void ext2fs_group_desc_csum_set(ext2_filsys fs, dgrp_t group);
1082 extern int ext2fs_group_desc_csum_verify(ext2_filsys fs, dgrp_t group);
1083 extern errcode_t ext2fs_set_gdt_csum(ext2_filsys fs);
1084 extern __u16 ext2fs_group_desc_csum(ext2_filsys fs, dgrp_t group);
1087 extern errcode_t ext2fs_init_dblist(ext2_filsys fs, ext2_dblist *ret_dblist);
1088 extern errcode_t ext2fs_add_dir_block(ext2_dblist dblist, ext2_ino_t ino,
1089 blk_t blk, int blockcnt);
1090 extern errcode_t ext2fs_add_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
1091 blk64_t blk, e2_blkcnt_t blockcnt);
1092 extern void ext2fs_dblist_sort(ext2_dblist dblist,
1093 EXT2_QSORT_TYPE (*sortfunc)(const void *,
1095 extern void ext2fs_dblist_sort2(ext2_dblist dblist,
1096 EXT2_QSORT_TYPE (*sortfunc)(const void *,
1098 extern errcode_t ext2fs_dblist_iterate(ext2_dblist dblist,
1099 int (*func)(ext2_filsys fs, struct ext2_db_entry *db_info,
1102 extern errcode_t ext2fs_dblist_iterate2(ext2_dblist dblist,
1103 int (*func)(ext2_filsys fs, struct ext2_db_entry2 *db_info,
1106 extern errcode_t ext2fs_dblist_iterate3(ext2_dblist dblist,
1107 int (*func)(ext2_filsys fs, struct ext2_db_entry2 *db_info,
1109 unsigned long long start,
1110 unsigned long long count,
1112 extern errcode_t ext2fs_set_dir_block(ext2_dblist dblist, ext2_ino_t ino,
1113 blk_t blk, int blockcnt);
1114 extern errcode_t ext2fs_set_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
1115 blk64_t blk, e2_blkcnt_t blockcnt);
1116 extern errcode_t ext2fs_copy_dblist(ext2_dblist src,
1118 extern int ext2fs_dblist_count(ext2_dblist dblist);
1119 extern blk64_t ext2fs_dblist_count2(ext2_dblist dblist);
1120 extern errcode_t ext2fs_dblist_get_last(ext2_dblist dblist,
1121 struct ext2_db_entry **entry);
1122 extern errcode_t ext2fs_dblist_get_last2(ext2_dblist dblist,
1123 struct ext2_db_entry2 **entry);
1124 extern errcode_t ext2fs_dblist_drop_last(ext2_dblist dblist);
1128 ext2fs_dblist_dir_iterate(ext2_dblist dblist,
1131 int (*func)(ext2_ino_t dir,
1133 struct ext2_dir_entry *dirent,
1141 /* digest_encode.c */
1142 #define EXT2FS_DIGEST_SIZE EXT2FS_SHA256_LENGTH
1143 extern int ext2fs_digest_encode(const char *src, int len, char *dst);
1144 extern int ext2fs_digest_decode(const char *src, int len, char *dst);
1148 extern errcode_t ext2fs_read_dir_block(ext2_filsys fs, blk_t block,
1150 extern errcode_t ext2fs_read_dir_block2(ext2_filsys fs, blk_t block,
1151 void *buf, int flags);
1152 extern errcode_t ext2fs_read_dir_block3(ext2_filsys fs, blk64_t block,
1153 void *buf, int flags);
1154 extern errcode_t ext2fs_read_dir_block4(ext2_filsys fs, blk64_t block,
1155 void *buf, int flags, ext2_ino_t ino);
1156 extern errcode_t ext2fs_write_dir_block(ext2_filsys fs, blk_t block,
1158 extern errcode_t ext2fs_write_dir_block2(ext2_filsys fs, blk_t block,
1159 void *buf, int flags);
1160 extern errcode_t ext2fs_write_dir_block3(ext2_filsys fs, blk64_t block,
1161 void *buf, int flags);
1162 extern errcode_t ext2fs_write_dir_block4(ext2_filsys fs, blk64_t block,
1163 void *buf, int flags, ext2_ino_t ino);
1166 extern errcode_t ext2fs_dirhash(int version, const char *name, int len,
1168 ext2_dirhash_t *ret_hash,
1169 ext2_dirhash_t *ret_minor_hash);
1173 extern errcode_t ext2fs_get_rec_len(ext2_filsys fs,
1174 struct ext2_dir_entry *dirent,
1175 unsigned int *rec_len);
1176 extern errcode_t ext2fs_set_rec_len(ext2_filsys fs,
1178 struct ext2_dir_entry *dirent);
1179 extern errcode_t ext2fs_dir_iterate(ext2_filsys fs,
1183 int (*func)(struct ext2_dir_entry *dirent,
1189 extern errcode_t ext2fs_dir_iterate2(ext2_filsys fs,
1193 int (*func)(ext2_ino_t dir,
1195 struct ext2_dir_entry *dirent,
1203 extern errcode_t ext2fs_dup_handle(ext2_filsys src, ext2_filsys *dest);
1206 extern errcode_t ext2fs_expand_dir(ext2_filsys fs, ext2_ino_t dir);
1209 extern __u32 ext2fs_ext_attr_hash_entry(struct ext2_ext_attr_entry *entry,
1211 extern errcode_t ext2fs_ext_attr_hash_entry2(ext2_filsys fs,
1212 struct ext2_ext_attr_entry *entry,
1213 void *data, __u32 *hash);
1214 extern errcode_t ext2fs_read_ext_attr(ext2_filsys fs, blk_t block, void *buf);
1215 extern errcode_t ext2fs_read_ext_attr2(ext2_filsys fs, blk64_t block,
1217 extern errcode_t ext2fs_read_ext_attr3(ext2_filsys fs, blk64_t block,
1218 void *buf, ext2_ino_t inum);
1219 extern errcode_t ext2fs_write_ext_attr(ext2_filsys fs, blk_t block,
1221 extern errcode_t ext2fs_write_ext_attr2(ext2_filsys fs, blk64_t block,
1223 extern errcode_t ext2fs_write_ext_attr3(ext2_filsys fs, blk64_t block,
1224 void *buf, ext2_ino_t inum);
1225 extern errcode_t ext2fs_adjust_ea_refcount(ext2_filsys fs, blk_t blk,
1227 int adjust, __u32 *newcount);
1228 extern errcode_t ext2fs_adjust_ea_refcount2(ext2_filsys fs, blk64_t blk,
1230 int adjust, __u32 *newcount);
1231 extern errcode_t ext2fs_adjust_ea_refcount3(ext2_filsys fs, blk64_t blk,
1233 int adjust, __u32 *newcount,
1235 errcode_t ext2fs_xattrs_write(struct ext2_xattr_handle *handle);
1236 errcode_t ext2fs_xattrs_read(struct ext2_xattr_handle *handle);
1237 errcode_t ext2fs_xattrs_iterate(struct ext2_xattr_handle *h,
1238 int (*func)(char *name, char *value,
1239 size_t value_len, void *data),
1241 errcode_t ext2fs_xattr_get(struct ext2_xattr_handle *h, const char *key,
1242 void **value, size_t *value_len);
1243 errcode_t ext2fs_xattr_set(struct ext2_xattr_handle *handle,
1247 errcode_t ext2fs_xattr_remove(struct ext2_xattr_handle *handle,
1249 errcode_t ext2fs_xattrs_open(ext2_filsys fs, ext2_ino_t ino,
1250 struct ext2_xattr_handle **handle);
1251 errcode_t ext2fs_xattrs_close(struct ext2_xattr_handle **handle);
1252 errcode_t ext2fs_free_ext_attr(ext2_filsys fs, ext2_ino_t ino,
1253 struct ext2_inode_large *inode);
1254 errcode_t ext2fs_xattrs_count(struct ext2_xattr_handle *handle, size_t *count);
1255 errcode_t ext2fs_xattr_inode_max_size(ext2_filsys fs, ext2_ino_t ino,
1257 #define XATTR_HANDLE_FLAG_RAW 0x0001
1258 errcode_t ext2fs_xattrs_flags(struct ext2_xattr_handle *handle,
1259 unsigned int *new_flags, unsigned int *old_flags);
1260 extern void ext2fs_ext_attr_block_rehash(struct ext2_ext_attr_header *header,
1261 struct ext2_ext_attr_entry *end);
1262 extern __u32 ext2fs_get_ea_inode_hash(struct ext2_inode *inode);
1263 extern void ext2fs_set_ea_inode_hash(struct ext2_inode *inode, __u32 hash);
1264 extern __u64 ext2fs_get_ea_inode_ref(struct ext2_inode *inode);
1265 extern void ext2fs_set_ea_inode_ref(struct ext2_inode *inode, __u64 ref_count);
1268 extern errcode_t ext2fs_extent_header_verify(void *ptr, int size);
1269 extern errcode_t ext2fs_extent_open(ext2_filsys fs, ext2_ino_t ino,
1270 ext2_extent_handle_t *handle);
1271 extern errcode_t ext2fs_extent_open2(ext2_filsys fs, ext2_ino_t ino,
1272 struct ext2_inode *inode,
1273 ext2_extent_handle_t *ret_handle);
1274 extern void ext2fs_extent_free(ext2_extent_handle_t handle);
1275 extern errcode_t ext2fs_extent_get(ext2_extent_handle_t handle,
1276 int flags, struct ext2fs_extent *extent);
1277 extern errcode_t ext2fs_extent_node_split(ext2_extent_handle_t handle);
1278 extern errcode_t ext2fs_extent_replace(ext2_extent_handle_t handle, int flags,
1279 struct ext2fs_extent *extent);
1280 extern errcode_t ext2fs_extent_insert(ext2_extent_handle_t handle, int flags,
1281 struct ext2fs_extent *extent);
1282 extern errcode_t ext2fs_extent_set_bmap(ext2_extent_handle_t handle,
1283 blk64_t logical, blk64_t physical,
1285 extern errcode_t ext2fs_extent_delete(ext2_extent_handle_t handle, int flags);
1286 extern errcode_t ext2fs_extent_get_info(ext2_extent_handle_t handle,
1287 struct ext2_extent_info *info);
1288 extern errcode_t ext2fs_extent_goto(ext2_extent_handle_t handle,
1290 extern errcode_t ext2fs_extent_goto2(ext2_extent_handle_t handle,
1291 int leaf_level, blk64_t blk);
1292 extern errcode_t ext2fs_extent_fix_parents(ext2_extent_handle_t handle);
1293 size_t ext2fs_max_extent_depth(ext2_extent_handle_t handle);
1296 #define EXT2_FALLOCATE_ZERO_BLOCKS (0x1)
1297 #define EXT2_FALLOCATE_FORCE_INIT (0x2)
1298 #define EXT2_FALLOCATE_FORCE_UNINIT (0x4)
1299 #define EXT2_FALLOCATE_INIT_BEYOND_EOF (0x8)
1300 #define EXT2_FALLOCATE_ALL_FLAGS (0xF)
1301 errcode_t ext2fs_fallocate(ext2_filsys fs, int flags, ext2_ino_t ino,
1302 struct ext2_inode *inode, blk64_t goal,
1303 blk64_t start, blk64_t len);
1306 extern errcode_t ext2fs_file_open2(ext2_filsys fs, ext2_ino_t ino,
1307 struct ext2_inode *inode,
1308 int flags, ext2_file_t *ret);
1309 extern errcode_t ext2fs_file_open(ext2_filsys fs, ext2_ino_t ino,
1310 int flags, ext2_file_t *ret);
1311 extern ext2_filsys ext2fs_file_get_fs(ext2_file_t file);
1312 struct ext2_inode *ext2fs_file_get_inode(ext2_file_t file);
1313 extern ext2_ino_t ext2fs_file_get_inode_num(ext2_file_t file);
1314 extern errcode_t ext2fs_file_close(ext2_file_t file);
1315 extern errcode_t ext2fs_file_flush(ext2_file_t file);
1316 extern errcode_t ext2fs_file_read(ext2_file_t file, void *buf,
1317 unsigned int wanted, unsigned int *got);
1318 extern errcode_t ext2fs_file_write(ext2_file_t file, const void *buf,
1319 unsigned int nbytes, unsigned int *written);
1320 extern errcode_t ext2fs_file_llseek(ext2_file_t file, __u64 offset,
1321 int whence, __u64 *ret_pos);
1322 extern errcode_t ext2fs_file_lseek(ext2_file_t file, ext2_off_t offset,
1323 int whence, ext2_off_t *ret_pos);
1324 errcode_t ext2fs_file_get_lsize(ext2_file_t file, __u64 *ret_size);
1325 extern ext2_off_t ext2fs_file_get_size(ext2_file_t file);
1326 extern errcode_t ext2fs_file_set_size(ext2_file_t file, ext2_off_t size);
1327 extern errcode_t ext2fs_file_set_size2(ext2_file_t file, ext2_off64_t size);
1330 extern char *ext2fs_find_block_device(dev_t device);
1333 extern errcode_t ext2fs_sync_device(int fd, int flushb);
1336 extern void ext2fs_free(ext2_filsys fs);
1337 extern void ext2fs_free_dblist(ext2_dblist dblist);
1338 extern void ext2fs_badblocks_list_free(ext2_badblocks_list bb);
1339 extern void ext2fs_u32_list_free(ext2_u32_list bb);
1342 extern void ext2fs_free_generic_bitmap(ext2fs_inode_bitmap bitmap);
1343 extern errcode_t ext2fs_make_generic_bitmap(errcode_t magic, ext2_filsys fs,
1344 __u32 start, __u32 end,
1346 const char *descr, char *init_map,
1347 ext2fs_generic_bitmap *ret);
1348 extern errcode_t ext2fs_allocate_generic_bitmap(__u32 start,
1352 ext2fs_generic_bitmap *ret);
1353 extern errcode_t ext2fs_copy_generic_bitmap(ext2fs_generic_bitmap src,
1354 ext2fs_generic_bitmap *dest);
1355 extern void ext2fs_clear_generic_bitmap(ext2fs_generic_bitmap bitmap);
1356 extern errcode_t ext2fs_fudge_generic_bitmap_end(ext2fs_inode_bitmap bitmap,
1361 extern void ext2fs_set_generic_bitmap_padding(ext2fs_generic_bitmap map);
1362 extern errcode_t ext2fs_resize_generic_bitmap(errcode_t magic,
1365 ext2fs_generic_bitmap bmap);
1366 extern errcode_t ext2fs_compare_generic_bitmap(errcode_t magic, errcode_t neq,
1367 ext2fs_generic_bitmap bm1,
1368 ext2fs_generic_bitmap bm2);
1369 extern errcode_t ext2fs_get_generic_bitmap_range(ext2fs_generic_bitmap bmap,
1371 __u32 start, __u32 num,
1373 extern errcode_t ext2fs_set_generic_bitmap_range(ext2fs_generic_bitmap bmap,
1375 __u32 start, __u32 num,
1377 extern errcode_t ext2fs_find_first_zero_generic_bitmap(ext2fs_generic_bitmap bitmap,
1378 __u32 start, __u32 end,
1380 extern errcode_t ext2fs_find_first_set_generic_bitmap(ext2fs_generic_bitmap bitmap,
1381 __u32 start, __u32 end,
1384 /* gen_bitmap64.c */
1385 void ext2fs_free_generic_bmap(ext2fs_generic_bitmap bmap);
1386 errcode_t ext2fs_alloc_generic_bmap(ext2_filsys fs, errcode_t magic,
1387 int type, __u64 start, __u64 end,
1390 ext2fs_generic_bitmap *ret);
1391 errcode_t ext2fs_copy_generic_bmap(ext2fs_generic_bitmap src,
1392 ext2fs_generic_bitmap *dest);
1393 void ext2fs_clear_generic_bmap(ext2fs_generic_bitmap bitmap);
1394 errcode_t ext2fs_fudge_generic_bmap_end(ext2fs_generic_bitmap bitmap,
1396 __u64 end, __u64 *oend);
1397 void ext2fs_set_generic_bmap_padding(ext2fs_generic_bitmap bmap);
1398 errcode_t ext2fs_resize_generic_bmap(ext2fs_generic_bitmap bmap,
1400 __u64 new_real_end);
1401 errcode_t ext2fs_compare_generic_bmap(errcode_t neq,
1402 ext2fs_generic_bitmap bm1,
1403 ext2fs_generic_bitmap bm2);
1404 errcode_t ext2fs_get_generic_bmap_range(ext2fs_generic_bitmap bmap,
1405 __u64 start, unsigned int num,
1407 errcode_t ext2fs_set_generic_bmap_range(ext2fs_generic_bitmap bmap,
1408 __u64 start, unsigned int num,
1410 errcode_t ext2fs_convert_subcluster_bitmap(ext2_filsys fs,
1411 ext2fs_block_bitmap *bitmap);
1413 /* get_num_dirs.c */
1414 extern errcode_t ext2fs_get_num_dirs(ext2_filsys fs, ext2_ino_t *ret_num_dirs);
1417 extern errcode_t ext2fs_get_device_size(const char *file, int blocksize,
1419 extern errcode_t ext2fs_get_device_size2(const char *file, int blocksize,
1420 blk64_t *retblocks);
1423 extern int ext2fs_get_dio_alignment(int fd);
1424 errcode_t ext2fs_get_device_sectsize(const char *file, int *sectsize);
1425 errcode_t ext2fs_get_device_phys_sectsize(const char *file, int *sectsize);
1428 errcode_t ext2fs_iblk_add_blocks(ext2_filsys fs, struct ext2_inode *inode,
1429 blk64_t num_blocks);
1430 errcode_t ext2fs_iblk_sub_blocks(ext2_filsys fs, struct ext2_inode *inode,
1431 blk64_t num_blocks);
1432 errcode_t ext2fs_iblk_set(ext2_filsys fs, struct ext2_inode *inode, blk64_t b);
1435 extern errcode_t ext2fs_image_inode_write(ext2_filsys fs, int fd, int flags);
1436 extern errcode_t ext2fs_image_inode_read(ext2_filsys fs, int fd, int flags);
1437 extern errcode_t ext2fs_image_super_write(ext2_filsys fs, int fd, int flags);
1438 extern errcode_t ext2fs_image_super_read(ext2_filsys fs, int fd, int flags);
1439 extern errcode_t ext2fs_image_bitmap_write(ext2_filsys fs, int fd, int flags);
1440 extern errcode_t ext2fs_image_bitmap_read(ext2_filsys fs, int fd, int flags);
1443 errcode_t ext2fs_read_ind_block(ext2_filsys fs, blk_t blk, void *buf);
1444 errcode_t ext2fs_write_ind_block(ext2_filsys fs, blk_t blk, void *buf);
1447 extern errcode_t ext2fs_initialize(const char *name, int flags,
1448 struct ext2_super_block *param,
1449 io_manager manager, ext2_filsys *ret_fs);
1452 extern void ext2fs_free_icount(ext2_icount_t icount);
1453 extern errcode_t ext2fs_create_icount_tdb(ext2_filsys fs, char *tdb_dir,
1454 int flags, ext2_icount_t *ret);
1455 extern errcode_t ext2fs_create_icount2(ext2_filsys fs, int flags,
1457 ext2_icount_t hint, ext2_icount_t *ret);
1458 extern errcode_t ext2fs_create_icount(ext2_filsys fs, int flags,
1460 ext2_icount_t *ret);
1461 extern errcode_t ext2fs_icount_fetch(ext2_icount_t icount, ext2_ino_t ino,
1463 extern errcode_t ext2fs_icount_increment(ext2_icount_t icount, ext2_ino_t ino,
1465 extern errcode_t ext2fs_icount_decrement(ext2_icount_t icount, ext2_ino_t ino,
1467 extern errcode_t ext2fs_icount_store(ext2_icount_t icount, ext2_ino_t ino,
1469 extern ext2_ino_t ext2fs_get_icount_size(ext2_icount_t icount);
1470 errcode_t ext2fs_icount_validate(ext2_icount_t icount, FILE *);
1474 extern errcode_t ext2fs_get_memalign(unsigned long size,
1475 unsigned long align, void *ptr);
1478 extern errcode_t ext2fs_inline_data_init(ext2_filsys fs, ext2_ino_t ino);
1479 extern errcode_t ext2fs_inline_data_size(ext2_filsys fs, ext2_ino_t ino,
1481 extern errcode_t ext2fs_inline_data_get(ext2_filsys fs, ext2_ino_t ino,
1482 struct ext2_inode *inode,
1483 void *buf, size_t *size);
1484 extern errcode_t ext2fs_inline_data_set(ext2_filsys fs, ext2_ino_t ino,
1485 struct ext2_inode *inode,
1486 void *buf, size_t size);
1489 extern errcode_t ext2fs_create_inode_cache(ext2_filsys fs,
1490 unsigned int cache_size);
1491 extern void ext2fs_free_inode_cache(struct ext2_inode_cache *icache);
1492 extern errcode_t ext2fs_flush_icache(ext2_filsys fs);
1493 extern errcode_t ext2fs_get_next_inode_full(ext2_inode_scan scan,
1495 struct ext2_inode *inode,
1497 #define EXT2_INODE_SCAN_DEFAULT_BUFFER_BLOCKS 8
1498 extern errcode_t ext2fs_open_inode_scan(ext2_filsys fs, int buffer_blocks,
1499 ext2_inode_scan *ret_scan);
1500 extern void ext2fs_close_inode_scan(ext2_inode_scan scan);
1501 extern errcode_t ext2fs_get_next_inode(ext2_inode_scan scan, ext2_ino_t *ino,
1502 struct ext2_inode *inode);
1503 extern errcode_t ext2fs_inode_scan_goto_blockgroup(ext2_inode_scan scan,
1505 extern void ext2fs_set_inode_callback
1506 (ext2_inode_scan scan,
1507 errcode_t (*done_group)(ext2_filsys fs,
1508 ext2_inode_scan scan,
1511 void *done_group_data);
1512 extern int ext2fs_inode_scan_flags(ext2_inode_scan scan, int set_flags,
1514 extern errcode_t ext2fs_read_inode_full(ext2_filsys fs, ext2_ino_t ino,
1515 struct ext2_inode * inode,
1517 extern errcode_t ext2fs_read_inode (ext2_filsys fs, ext2_ino_t ino,
1518 struct ext2_inode * inode);
1519 extern errcode_t ext2fs_write_inode_full(ext2_filsys fs, ext2_ino_t ino,
1520 struct ext2_inode * inode,
1522 extern errcode_t ext2fs_write_inode(ext2_filsys fs, ext2_ino_t ino,
1523 struct ext2_inode * inode);
1524 extern errcode_t ext2fs_write_new_inode(ext2_filsys fs, ext2_ino_t ino,
1525 struct ext2_inode * inode);
1526 extern errcode_t ext2fs_get_blocks(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
1527 extern errcode_t ext2fs_check_directory(ext2_filsys fs, ext2_ino_t ino);
1530 extern io_manager inode_io_manager;
1531 extern errcode_t ext2fs_inode_io_intern(ext2_filsys fs, ext2_ino_t ino,
1533 extern errcode_t ext2fs_inode_io_intern2(ext2_filsys fs, ext2_ino_t ino,
1534 struct ext2_inode *inode,
1538 extern errcode_t ext2fs_check_if_mounted(const char *file, int *mount_flags);
1539 extern errcode_t ext2fs_check_mount_point(const char *device, int *mount_flags,
1540 char *mtpt, int mtlen);
1544 * NOTE: This function removes from an inode the blocks "start", "end", and
1545 * every block in between.
1547 extern errcode_t ext2fs_punch(ext2_filsys fs, ext2_ino_t ino,
1548 struct ext2_inode *inode,
1549 char *block_buf, blk64_t start,
1553 extern errcode_t ext2fs_lookup(ext2_filsys fs, ext2_ino_t dir, const char *name,
1554 int namelen, char *buf, ext2_ino_t *inode);
1555 extern errcode_t ext2fs_namei(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1556 const char *name, ext2_ino_t *inode);
1557 errcode_t ext2fs_namei_follow(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1558 const char *name, ext2_ino_t *inode);
1559 extern errcode_t ext2fs_follow_link(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1560 ext2_ino_t inode, ext2_ino_t *res_inode);
1563 int ext2fs_native_flag(void);
1566 extern errcode_t ext2fs_new_dir_block(ext2_filsys fs, ext2_ino_t dir_ino,
1567 ext2_ino_t parent_ino, char **block);
1568 extern errcode_t ext2fs_new_dir_inline_data(ext2_filsys fs, ext2_ino_t dir_ino,
1569 ext2_ino_t parent_ino, __u32 *iblock);
1572 extern errcode_t ext2fs_mkdir(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t inum,
1576 extern errcode_t ext2fs_zero_blocks(ext2_filsys fs, blk_t blk, int num,
1577 blk_t *ret_blk, int *ret_count);
1578 extern errcode_t ext2fs_zero_blocks2(ext2_filsys fs, blk64_t blk, int num,
1579 blk64_t *ret_blk, int *ret_count);
1580 extern errcode_t ext2fs_create_journal_superblock(ext2_filsys fs,
1581 __u32 num_blocks, int flags,
1583 extern errcode_t ext2fs_add_journal_device(ext2_filsys fs,
1584 ext2_filsys journal_dev);
1585 extern errcode_t ext2fs_add_journal_inode(ext2_filsys fs, blk_t num_blocks,
1587 extern errcode_t ext2fs_add_journal_inode2(ext2_filsys fs, blk_t num_blocks,
1588 blk64_t goal, int flags);
1589 extern int ext2fs_default_journal_size(__u64 num_blocks);
1590 extern int ext2fs_journal_sb_start(int blocksize);
1593 extern errcode_t ext2fs_open(const char *name, int flags, int superblock,
1594 unsigned int block_size, io_manager manager,
1595 ext2_filsys *ret_fs);
1596 extern errcode_t ext2fs_open2(const char *name, const char *io_options,
1597 int flags, int superblock,
1598 unsigned int block_size, io_manager manager,
1599 ext2_filsys *ret_fs);
1601 * The dgrp_t argument to these two functions is not actually a group number
1602 * but a block number offset within a group table! Convert with the formula
1603 * (group_number / groups_per_block).
1605 extern blk64_t ext2fs_descriptor_block_loc2(ext2_filsys fs,
1606 blk64_t group_block, dgrp_t i);
1607 extern blk_t ext2fs_descriptor_block_loc(ext2_filsys fs, blk_t group_block,
1609 errcode_t ext2fs_get_data_io(ext2_filsys fs, io_channel *old_io);
1610 errcode_t ext2fs_set_data_io(ext2_filsys fs, io_channel new_io);
1611 errcode_t ext2fs_rewrite_to_io(ext2_filsys fs, io_channel new_io);
1613 /* get_pathname.c */
1614 extern errcode_t ext2fs_get_pathname(ext2_filsys fs, ext2_ino_t dir, ext2_ino_t ino,
1618 errcode_t ext2fs_link(ext2_filsys fs, ext2_ino_t dir, const char *name,
1619 ext2_ino_t ino, int flags);
1620 errcode_t ext2fs_unlink(ext2_filsys fs, ext2_ino_t dir, const char *name,
1621 ext2_ino_t ino, int flags);
1624 errcode_t ext2fs_symlink(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t ino,
1625 const char *name, const char *target);
1626 int ext2fs_is_fast_symlink(struct ext2_inode *inode);
1629 errcode_t ext2fs_mmp_read(ext2_filsys fs, blk64_t mmp_blk, void *buf);
1630 errcode_t ext2fs_mmp_write(ext2_filsys fs, blk64_t mmp_blk, void *buf);
1631 errcode_t ext2fs_mmp_clear(ext2_filsys fs);
1632 errcode_t ext2fs_mmp_init(ext2_filsys fs);
1633 errcode_t ext2fs_mmp_start(ext2_filsys fs);
1634 errcode_t ext2fs_mmp_update(ext2_filsys fs);
1635 errcode_t ext2fs_mmp_update2(ext2_filsys fs, int immediately);
1636 errcode_t ext2fs_mmp_stop(ext2_filsys fs);
1637 unsigned ext2fs_mmp_new_seq(void);
1640 extern errcode_t ext2fs_read_bb_inode(ext2_filsys fs,
1641 ext2_badblocks_list *bb_list);
1643 /* read_bb_file.c */
1644 extern errcode_t ext2fs_read_bb_FILE2(ext2_filsys fs, FILE *f,
1645 ext2_badblocks_list *bb_list,
1647 void (*invalid)(ext2_filsys fs,
1651 extern errcode_t ext2fs_read_bb_FILE(ext2_filsys fs, FILE *f,
1652 ext2_badblocks_list *bb_list,
1653 void (*invalid)(ext2_filsys fs,
1657 extern errcode_t ext2fs_create_resize_inode(ext2_filsys fs);
1660 #define EXT2FS_SHA256_LENGTH 32
1662 extern void ext2fs_sha256(const unsigned char *in, unsigned long in_size,
1663 unsigned char out[EXT2FS_SHA256_LENGTH]);
1667 #define EXT2FS_SHA512_LENGTH 64
1668 extern void ext2fs_sha512(const unsigned char *in, unsigned long in_size,
1669 unsigned char out[EXT2FS_SHA512_LENGTH]);
1672 extern errcode_t ext2fs_dirent_swab_in2(ext2_filsys fs, char *buf, size_t size,
1674 extern errcode_t ext2fs_dirent_swab_in(ext2_filsys fs, char *buf, int flags);
1675 extern errcode_t ext2fs_dirent_swab_out2(ext2_filsys fs, char *buf, size_t size,
1677 extern errcode_t ext2fs_dirent_swab_out(ext2_filsys fs, char *buf, int flags);
1678 extern void ext2fs_swap_ext_attr(char *to, char *from, int bufsize,
1680 extern void ext2fs_swap_ext_attr_header(struct ext2_ext_attr_header *to_header,
1681 struct ext2_ext_attr_header *from_hdr);
1682 extern void ext2fs_swap_ext_attr_entry(struct ext2_ext_attr_entry *to_entry,
1683 struct ext2_ext_attr_entry *from_entry);
1684 extern void ext2fs_swap_super(struct ext2_super_block * super);
1685 extern void ext2fs_swap_group_desc(struct ext2_group_desc *gdp);
1686 extern void ext2fs_swap_group_desc2(ext2_filsys, struct ext2_group_desc *gdp);
1687 extern void ext2fs_swap_inode_full(ext2_filsys fs, struct ext2_inode_large *t,
1688 struct ext2_inode_large *f, int hostorder,
1690 extern void ext2fs_swap_inode(ext2_filsys fs,struct ext2_inode *t,
1691 struct ext2_inode *f, int hostorder);
1692 extern void ext2fs_swap_mmp(struct mmp_struct *mmp);
1695 extern int ext2fs_open_file(const char *pathname, int flags, mode_t mode);
1696 extern int ext2fs_stat(const char *path, ext2fs_struct_stat *buf);
1697 extern int ext2fs_fstat(int fd, ext2fs_struct_stat *buf);
1700 extern int ext2fs_inode_has_valid_blocks(struct ext2_inode *inode);
1701 extern int ext2fs_inode_has_valid_blocks2(ext2_filsys fs,
1702 struct ext2_inode *inode);
1705 extern int ext2fs_parse_version_string(const char *ver_string);
1706 extern int ext2fs_get_library_version(const char **ver_string,
1707 const char **date_string);
1709 /* write_bb_file.c */
1710 extern errcode_t ext2fs_write_bb_FILE(ext2_badblocks_list bb_list,
1715 /* inline functions */
1716 #ifdef NO_INLINE_FUNCS
1717 extern errcode_t ext2fs_get_mem(unsigned long size, void *ptr);
1718 extern errcode_t ext2fs_get_memzero(unsigned long size, void *ptr);
1719 extern errcode_t ext2fs_get_array(unsigned long count,
1720 unsigned long size, void *ptr);
1721 extern errcode_t ext2fs_get_arrayzero(unsigned long count,
1722 unsigned long size, void *ptr);
1723 extern errcode_t ext2fs_free_mem(void *ptr);
1724 extern errcode_t ext2fs_resize_mem(unsigned long old_size,
1725 unsigned long size, void *ptr);
1726 extern void ext2fs_mark_super_dirty(ext2_filsys fs);
1727 extern void ext2fs_mark_changed(ext2_filsys fs);
1728 extern int ext2fs_test_changed(ext2_filsys fs);
1729 extern void ext2fs_mark_valid(ext2_filsys fs);
1730 extern void ext2fs_unmark_valid(ext2_filsys fs);
1731 extern int ext2fs_test_valid(ext2_filsys fs);
1732 extern void ext2fs_mark_ib_dirty(ext2_filsys fs);
1733 extern void ext2fs_mark_bb_dirty(ext2_filsys fs);
1734 extern int ext2fs_test_ib_dirty(ext2_filsys fs);
1735 extern int ext2fs_test_bb_dirty(ext2_filsys fs);
1736 extern dgrp_t ext2fs_group_of_blk(ext2_filsys fs, blk_t blk);
1737 extern dgrp_t ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino);
1738 extern blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group);
1739 extern blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group);
1740 extern blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
1741 struct ext2_inode *inode);
1742 extern int ext2fs_htree_intnode_maxrecs(ext2_filsys fs, int blocks);
1743 extern unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b);
1744 extern __u64 ext2fs_div64_ceil(__u64 a, __u64 b);
1745 extern int ext2fs_dirent_name_len(const struct ext2_dir_entry *entry);
1746 extern void ext2fs_dirent_set_name_len(struct ext2_dir_entry *entry, int len);
1747 extern int ext2fs_dirent_file_type(const struct ext2_dir_entry *entry);
1748 extern void ext2fs_dirent_set_file_type(struct ext2_dir_entry *entry, int type);
1749 extern struct ext2_inode *ext2fs_inode(struct ext2_inode_large * large_inode);
1750 extern const struct ext2_inode *ext2fs_const_inode(const struct ext2_inode_large * large_inode);
1755 * The actual inlined functions definitions themselves...
1757 * If NO_INLINE_FUNCS is defined, then we won't try to do inline
1760 #if (defined(INCLUDE_INLINE_FUNCS) || !defined(NO_INLINE_FUNCS))
1761 #ifdef INCLUDE_INLINE_FUNCS
1762 #define _INLINE_ extern
1764 #if (__STDC_VERSION__ >= 199901L)
1765 #define _INLINE_ inline
1768 #define _INLINE_ extern __inline__
1769 #else /* For Watcom C */
1770 #define _INLINE_ extern inline
1771 #endif /* __GNUC__ */
1772 #endif /* __STDC_VERSION__ >= 199901L */
1775 #ifndef EXT2_CUSTOM_MEMORY_ROUTINES
1778 * Allocate memory. The 'ptr' arg must point to a pointer.
1780 _INLINE_ errcode_t ext2fs_get_mem(unsigned long size, void *ptr)
1786 return EXT2_ET_NO_MEMORY;
1787 memcpy(ptr, &pp, sizeof (pp));
1791 _INLINE_ errcode_t ext2fs_get_memzero(unsigned long size, void *ptr)
1797 return EXT2_ET_NO_MEMORY;
1798 memset(pp, 0, size);
1799 memcpy(ptr, &pp, sizeof(pp));
1803 _INLINE_ errcode_t ext2fs_get_array(unsigned long count, unsigned long size, void *ptr)
1805 if (count && (~0UL)/count < size)
1806 return EXT2_ET_NO_MEMORY;
1807 return ext2fs_get_mem(count*size, ptr);
1810 _INLINE_ errcode_t ext2fs_get_arrayzero(unsigned long count,
1811 unsigned long size, void *ptr)
1815 if (count && (~0UL)/count < size)
1816 return EXT2_ET_NO_MEMORY;
1817 pp = calloc(count, size);
1819 return EXT2_ET_NO_MEMORY;
1820 memcpy(ptr, &pp, sizeof(pp));
1825 * Free memory. The 'ptr' arg must point to a pointer.
1827 _INLINE_ errcode_t ext2fs_free_mem(void *ptr)
1831 memcpy(&p, ptr, sizeof(p));
1834 memcpy(ptr, &p, sizeof(p));
1839 * Resize memory. The 'ptr' arg must point to a pointer.
1841 _INLINE_ errcode_t ext2fs_resize_mem(unsigned long EXT2FS_ATTR((unused)) old_size,
1842 unsigned long size, void *ptr)
1846 /* Use "memcpy" for pointer assignments here to avoid problems
1847 * with C99 strict type aliasing rules. */
1848 memcpy(&p, ptr, sizeof(p));
1849 p = realloc(p, size);
1851 return EXT2_ET_NO_MEMORY;
1852 memcpy(ptr, &p, sizeof(p));
1855 #endif /* Custom memory routines */
1858 * Mark a filesystem superblock as dirty
1860 _INLINE_ void ext2fs_mark_super_dirty(ext2_filsys fs)
1862 fs->flags |= EXT2_FLAG_DIRTY | EXT2_FLAG_CHANGED;
1866 * Mark a filesystem as changed
1868 _INLINE_ void ext2fs_mark_changed(ext2_filsys fs)
1870 fs->flags |= EXT2_FLAG_CHANGED;
1874 * Check to see if a filesystem has changed
1876 _INLINE_ int ext2fs_test_changed(ext2_filsys fs)
1878 return (fs->flags & EXT2_FLAG_CHANGED);
1882 * Mark a filesystem as valid
1884 _INLINE_ void ext2fs_mark_valid(ext2_filsys fs)
1886 fs->flags |= EXT2_FLAG_VALID;
1890 * Mark a filesystem as NOT valid
1892 _INLINE_ void ext2fs_unmark_valid(ext2_filsys fs)
1894 fs->flags &= ~EXT2_FLAG_VALID;
1898 * Check to see if a filesystem is valid
1900 _INLINE_ int ext2fs_test_valid(ext2_filsys fs)
1902 return (fs->flags & EXT2_FLAG_VALID);
1906 * Mark the inode bitmap as dirty
1908 _INLINE_ void ext2fs_mark_ib_dirty(ext2_filsys fs)
1910 fs->flags |= EXT2_FLAG_IB_DIRTY | EXT2_FLAG_CHANGED;
1914 * Mark the block bitmap as dirty
1916 _INLINE_ void ext2fs_mark_bb_dirty(ext2_filsys fs)
1918 fs->flags |= EXT2_FLAG_BB_DIRTY | EXT2_FLAG_CHANGED;
1922 * Check to see if a filesystem's inode bitmap is dirty
1924 _INLINE_ int ext2fs_test_ib_dirty(ext2_filsys fs)
1926 return (fs->flags & EXT2_FLAG_IB_DIRTY);
1930 * Check to see if a filesystem's block bitmap is dirty
1932 _INLINE_ int ext2fs_test_bb_dirty(ext2_filsys fs)
1934 return (fs->flags & EXT2_FLAG_BB_DIRTY);
1938 * Return the group # of a block
1940 _INLINE_ dgrp_t ext2fs_group_of_blk(ext2_filsys fs, blk_t blk)
1942 return ext2fs_group_of_blk2(fs, blk);
1945 * Return the group # of an inode number
1947 _INLINE_ dgrp_t ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino)
1949 return (ino - 1) / fs->super->s_inodes_per_group;
1953 * Return the first block (inclusive) in a group
1955 _INLINE_ blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group)
1957 return (blk_t) ext2fs_group_first_block2(fs, group);
1961 * Return the last block (inclusive) in a group
1963 _INLINE_ blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group)
1965 return (blk_t) ext2fs_group_last_block2(fs, group);
1968 _INLINE_ blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
1969 struct ext2_inode *inode)
1971 return (blk_t) ext2fs_inode_data_blocks2(fs, inode);
1974 _INLINE_ int ext2fs_htree_intnode_maxrecs(ext2_filsys fs, int blocks)
1976 return blocks * ((fs->blocksize - 8) / sizeof(struct ext2_dx_entry));
1980 * This is an efficient, overflow safe way of calculating ceil((1.0 * a) / b)
1982 _INLINE_ unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b)
1986 return ((a - 1) / b) + 1;
1989 _INLINE_ __u64 ext2fs_div64_ceil(__u64 a, __u64 b)
1993 return ((a - 1) / b) + 1;
1996 _INLINE_ int ext2fs_dirent_name_len(const struct ext2_dir_entry *entry)
1998 return entry->name_len & 0xff;
2001 _INLINE_ void ext2fs_dirent_set_name_len(struct ext2_dir_entry *entry, int len)
2003 entry->name_len = (entry->name_len & 0xff00) | (len & 0xff);
2006 _INLINE_ int ext2fs_dirent_file_type(const struct ext2_dir_entry *entry)
2008 return entry->name_len >> 8;
2011 _INLINE_ void ext2fs_dirent_set_file_type(struct ext2_dir_entry *entry, int type)
2013 entry->name_len = (entry->name_len & 0xff) | (type << 8);
2016 _INLINE_ struct ext2_inode *ext2fs_inode(struct ext2_inode_large * large_inode)
2018 /* It is always safe to convert large inode to a small inode */
2019 return (struct ext2_inode *) large_inode;
2022 _INLINE_ const struct ext2_inode *
2023 ext2fs_const_inode(const struct ext2_inode_large * large_inode)
2025 /* It is always safe to convert large inode to a small inode */
2026 return (const struct ext2_inode *) large_inode;
2032 /* htree levels for ext4 */
2033 #define EXT4_HTREE_LEVEL_COMPAT 2
2034 #define EXT4_HTREE_LEVEL 3
2036 static inline unsigned int ext2_dir_htree_level(ext2_filsys fs)
2038 if (ext2fs_has_feature_largedir(fs->super))
2039 return EXT4_HTREE_LEVEL;
2041 return EXT4_HTREE_LEVEL_COMPAT;
2048 #endif /* _EXT2FS_EXT2FS_H */