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>
98 * Portability help for Microsoft Visual C++
101 #define EXT2_QSORT_TYPE int __cdecl
103 #define EXT2_QSORT_TYPE int
106 typedef struct struct_ext2_filsys *ext2_filsys;
108 #define EXT2FS_MARK_ERROR 0
109 #define EXT2FS_UNMARK_ERROR 1
110 #define EXT2FS_TEST_ERROR 2
112 typedef struct ext2fs_struct_generic_bitmap *ext2fs_generic_bitmap;
113 typedef struct ext2fs_struct_generic_bitmap *ext2fs_inode_bitmap;
114 typedef struct ext2fs_struct_generic_bitmap *ext2fs_block_bitmap;
116 #define EXT2_FIRST_INODE(s) EXT2_FIRST_INO(s)
120 * Badblocks list definitions
123 typedef struct ext2_struct_u32_list *ext2_badblocks_list;
124 typedef struct ext2_struct_u32_iterate *ext2_badblocks_iterate;
126 typedef struct ext2_struct_u32_list *ext2_u32_list;
127 typedef struct ext2_struct_u32_iterate *ext2_u32_iterate;
130 typedef struct ext2_struct_u32_list *badblocks_list;
131 typedef struct ext2_struct_u32_iterate *badblocks_iterate;
133 #define BADBLOCKS_FLAG_DIRTY 1
136 * ext2_dblist structure and abstractions (see dblist.c)
138 struct ext2_db_entry2 {
141 e2_blkcnt_t blockcnt;
144 /* Ye Olde 32-bit version */
145 struct ext2_db_entry {
151 typedef struct ext2_struct_dblist *ext2_dblist;
153 #define DBLIST_ABORT 1
156 * ext2_fileio definitions
159 #define EXT2_FILE_WRITE 0x0001
160 #define EXT2_FILE_CREATE 0x0002
162 #define EXT2_FILE_MASK 0x00FF
164 #define EXT2_FILE_BUF_DIRTY 0x4000
165 #define EXT2_FILE_BUF_VALID 0x2000
167 typedef struct ext2_file *ext2_file_t;
169 #define EXT2_SEEK_SET 0
170 #define EXT2_SEEK_CUR 1
171 #define EXT2_SEEK_END 2
174 * Flags for the ext2_filsys structure and for ext2fs_open()
176 #define EXT2_FLAG_RW 0x01
177 #define EXT2_FLAG_CHANGED 0x02
178 #define EXT2_FLAG_DIRTY 0x04
179 #define EXT2_FLAG_VALID 0x08
180 #define EXT2_FLAG_IB_DIRTY 0x10
181 #define EXT2_FLAG_BB_DIRTY 0x20
182 #define EXT2_FLAG_SWAP_BYTES 0x40
183 #define EXT2_FLAG_SWAP_BYTES_READ 0x80
184 #define EXT2_FLAG_SWAP_BYTES_WRITE 0x100
185 #define EXT2_FLAG_MASTER_SB_ONLY 0x200
186 #define EXT2_FLAG_FORCE 0x400
187 #define EXT2_FLAG_SUPER_ONLY 0x800
188 #define EXT2_FLAG_JOURNAL_DEV_OK 0x1000
189 #define EXT2_FLAG_IMAGE_FILE 0x2000
190 #define EXT2_FLAG_EXCLUSIVE 0x4000
191 #define EXT2_FLAG_SOFTSUPP_FEATURES 0x8000
192 #define EXT2_FLAG_NOFREE_ON_ERROR 0x10000
193 #define EXT2_FLAG_64BITS 0x20000
194 #define EXT2_FLAG_PRINT_PROGRESS 0x40000
195 #define EXT2_FLAG_DIRECT_IO 0x80000
196 #define EXT2_FLAG_SKIP_MMP 0x100000
197 #define EXT2_FLAG_IGNORE_CSUM_ERRORS 0x200000
200 * Special flag in the ext2 inode i_flag field that means that this is
201 * a new inode. (So that ext2_write_inode() can clear extra fields.)
203 #define EXT2_NEW_INODE_FL 0x80000000
206 * Flags for mkjournal
208 #define EXT2_MKJOURNAL_V1_SUPER 0x0000001 /* create V1 superblock (deprecated) */
209 #define EXT2_MKJOURNAL_LAZYINIT 0x0000002 /* don't zero journal inode before use*/
210 #define EXT2_MKJOURNAL_NO_MNT_CHECK 0x0000004 /* don't check mount status */
212 struct opaque_ext2_group_desc;
214 struct struct_ext2_filsys {
219 struct ext2_super_block * super;
220 unsigned int blocksize;
222 dgrp_t group_desc_count;
223 unsigned long desc_blocks;
224 struct opaque_ext2_group_desc * group_desc;
225 unsigned int inode_blocks_per_group;
226 ext2fs_inode_bitmap inode_map;
227 ext2fs_block_bitmap block_map;
228 /* XXX FIXME-64: not 64-bit safe, but not used? */
229 errcode_t (*get_blocks)(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
230 errcode_t (*check_directory)(ext2_filsys fs, ext2_ino_t ino);
231 errcode_t (*write_bitmaps)(ext2_filsys fs);
232 errcode_t (*read_inode)(ext2_filsys fs, ext2_ino_t ino,
233 struct ext2_inode *inode);
234 errcode_t (*write_inode)(ext2_filsys fs, ext2_ino_t ino,
235 struct ext2_inode *inode);
236 ext2_badblocks_list badblocks;
238 __u32 stride; /* for mke2fs */
239 struct ext2_super_block * orig_super;
240 struct ext2_image_hdr * image_header;
243 int cluster_ratio_bits;
244 __u16 default_bitmap_type;
247 * Reserved for future expansion
252 * Reserved for the use of the calling application.
259 struct ext2_inode_cache *icache;
263 * More callback functions
265 errcode_t (*get_alloc_block)(ext2_filsys fs, blk64_t goal,
267 void (*block_alloc_stats)(ext2_filsys fs, blk64_t blk, int inuse);
270 * Buffers for Multiple mount protection(MMP) block.
277 * Time at which e2fsck last updated the MMP block.
279 long mmp_last_written;
281 /* progress operation functions */
282 struct ext2fs_progress_ops *progress_ops;
284 /* Precomputed FS UUID checksum for seeding other checksums */
287 io_channel journal_io;
290 /* New block range allocation hooks */
291 errcode_t (*new_range)(ext2_filsys fs, int flags, blk64_t goal,
292 blk64_t len, blk64_t *pblk, blk64_t *plen);
293 void (*block_alloc_stats_range)(ext2_filsys fs, blk64_t blk, blk_t num,
297 #if EXT2_FLAT_INCLUDES
298 #include "e2_bitops.h"
300 #include <ext2fs/bitops.h>
304 * 64-bit bitmap backend types
306 #define EXT2FS_BMAP64_BITARRAY 1
307 #define EXT2FS_BMAP64_RBTREE 2
308 #define EXT2FS_BMAP64_AUTODIR 3
311 * Return flags for the block iterator functions
313 #define BLOCK_CHANGED 1
314 #define BLOCK_ABORT 2
315 #define BLOCK_ERROR 4
316 #define BLOCK_INLINE_DATA_CHANGED 8
319 * Block interate flags
321 * BLOCK_FLAG_APPEND, or BLOCK_FLAG_HOLE, indicates that the interator
322 * function should be called on blocks where the block number is zero.
323 * This is used by ext2fs_expand_dir() to be able to add a new block
324 * to an inode. It can also be used for programs that want to be able
325 * to deal with files that contain "holes".
327 * BLOCK_FLAG_DEPTH_TRAVERSE indicates that the iterator function for
328 * the indirect, doubly indirect, etc. blocks should be called after
329 * all of the blocks containined in the indirect blocks are processed.
330 * This is useful if you are going to be deallocating blocks from an
333 * BLOCK_FLAG_DATA_ONLY indicates that the iterator function should be
334 * called for data blocks only.
336 * BLOCK_FLAG_READ_ONLY is a promise by the caller that it will not
337 * modify returned block number.
339 * BLOCK_FLAG_NO_LARGE is for internal use only. It informs
340 * ext2fs_block_iterate2 that large files won't be accepted.
342 #define BLOCK_FLAG_APPEND 1
343 #define BLOCK_FLAG_HOLE 1
344 #define BLOCK_FLAG_DEPTH_TRAVERSE 2
345 #define BLOCK_FLAG_DATA_ONLY 4
346 #define BLOCK_FLAG_READ_ONLY 8
348 #define BLOCK_FLAG_NO_LARGE 0x1000
351 * Magic "block count" return values for the block iterator function.
353 #define BLOCK_COUNT_IND (-1)
354 #define BLOCK_COUNT_DIND (-2)
355 #define BLOCK_COUNT_TIND (-3)
356 #define BLOCK_COUNT_TRANSLATOR (-4)
360 * Flags for ext2fs_move_blocks
362 #define EXT2_BMOVE_GET_DBLIST 0x0001
363 #define EXT2_BMOVE_DEBUG 0x0002
367 * Generic (non-filesystem layout specific) extents structure
370 #define EXT2_EXTENT_FLAGS_LEAF 0x0001
371 #define EXT2_EXTENT_FLAGS_UNINIT 0x0002
372 #define EXT2_EXTENT_FLAGS_SECOND_VISIT 0x0004
374 struct ext2fs_extent {
375 blk64_t e_pblk; /* first physical block */
376 blk64_t e_lblk; /* first logical block extent covers */
377 __u32 e_len; /* number of blocks covered by extent */
378 __u32 e_flags; /* extent flags */
381 typedef struct ext2_extent_handle *ext2_extent_handle_t;
382 typedef struct ext2_extent_path *ext2_extent_path_t;
385 * Flags used by ext2fs_extent_get()
387 #define EXT2_EXTENT_CURRENT 0x0000
388 #define EXT2_EXTENT_MOVE_MASK 0x000F
389 #define EXT2_EXTENT_ROOT 0x0001
390 #define EXT2_EXTENT_LAST_LEAF 0x0002
391 #define EXT2_EXTENT_FIRST_SIB 0x0003
392 #define EXT2_EXTENT_LAST_SIB 0x0004
393 #define EXT2_EXTENT_NEXT_SIB 0x0005
394 #define EXT2_EXTENT_PREV_SIB 0x0006
395 #define EXT2_EXTENT_NEXT_LEAF 0x0007
396 #define EXT2_EXTENT_PREV_LEAF 0x0008
397 #define EXT2_EXTENT_NEXT 0x0009
398 #define EXT2_EXTENT_PREV 0x000A
399 #define EXT2_EXTENT_UP 0x000B
400 #define EXT2_EXTENT_DOWN 0x000C
401 #define EXT2_EXTENT_DOWN_AND_LAST 0x000D
404 * Flags used by ext2fs_extent_insert()
406 #define EXT2_EXTENT_INSERT_AFTER 0x0001 /* insert after handle loc'n */
407 #define EXT2_EXTENT_INSERT_NOSPLIT 0x0002 /* insert may not cause split */
410 * Flags used by ext2fs_extent_delete()
412 #define EXT2_EXTENT_DELETE_KEEP_EMPTY 0x001 /* keep node if last extnt gone */
415 * Flags used by ext2fs_extent_set_bmap()
417 #define EXT2_EXTENT_SET_BMAP_UNINIT 0x0001
420 * Data structure returned by ext2fs_extent_get_info()
422 struct ext2_extent_info {
432 __u32 max_uninit_len;
436 * Flags for directory block reading and writing functions
438 #define EXT2_DIRBLOCK_V2_STRUCT 0x0001
441 * Return flags for the directory iterator functions
443 #define DIRENT_CHANGED 1
444 #define DIRENT_ABORT 2
445 #define DIRENT_ERROR 3
448 * Directory iterator flags
451 #define DIRENT_FLAG_INCLUDE_EMPTY 1
452 #define DIRENT_FLAG_INCLUDE_REMOVED 2
453 #define DIRENT_FLAG_INCLUDE_CSUM 4
454 #define DIRENT_FLAG_INCLUDE_INLINE_DATA 8
456 #define DIRENT_DOT_FILE 1
457 #define DIRENT_DOT_DOT_FILE 2
458 #define DIRENT_OTHER_FILE 3
459 #define DIRENT_DELETED_FILE 4
460 #define DIRENT_CHECKSUM 5
463 * Inode scan definitions
465 typedef struct ext2_struct_inode_scan *ext2_inode_scan;
470 #define EXT2_SF_CHK_BADBLOCKS 0x0001
471 #define EXT2_SF_BAD_INODE_BLK 0x0002
472 #define EXT2_SF_BAD_EXTRA_BYTES 0x0004
473 #define EXT2_SF_SKIP_MISSING_ITABLE 0x0008
474 #define EXT2_SF_DO_LAZY 0x0010
475 #define EXT2_SF_WARN_GARBAGE_INODES 0x0020
478 * ext2fs_check_if_mounted flags
480 #define EXT2_MF_MOUNTED 1
481 #define EXT2_MF_ISROOT 2
482 #define EXT2_MF_READONLY 4
483 #define EXT2_MF_SWAP 8
484 #define EXT2_MF_BUSY 16
487 * Ext2/linux mode flags. We define them here so that we don't need
488 * to depend on the OS's sys/stat.h, since we may be compiling on a
491 #define LINUX_S_IFMT 00170000
492 #define LINUX_S_IFSOCK 0140000
493 #define LINUX_S_IFLNK 0120000
494 #define LINUX_S_IFREG 0100000
495 #define LINUX_S_IFBLK 0060000
496 #define LINUX_S_IFDIR 0040000
497 #define LINUX_S_IFCHR 0020000
498 #define LINUX_S_IFIFO 0010000
499 #define LINUX_S_ISUID 0004000
500 #define LINUX_S_ISGID 0002000
501 #define LINUX_S_ISVTX 0001000
503 #define LINUX_S_IRWXU 00700
504 #define LINUX_S_IRUSR 00400
505 #define LINUX_S_IWUSR 00200
506 #define LINUX_S_IXUSR 00100
508 #define LINUX_S_IRWXG 00070
509 #define LINUX_S_IRGRP 00040
510 #define LINUX_S_IWGRP 00020
511 #define LINUX_S_IXGRP 00010
513 #define LINUX_S_IRWXO 00007
514 #define LINUX_S_IROTH 00004
515 #define LINUX_S_IWOTH 00002
516 #define LINUX_S_IXOTH 00001
518 #define LINUX_S_ISLNK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFLNK)
519 #define LINUX_S_ISREG(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFREG)
520 #define LINUX_S_ISDIR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFDIR)
521 #define LINUX_S_ISCHR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFCHR)
522 #define LINUX_S_ISBLK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFBLK)
523 #define LINUX_S_ISFIFO(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFIFO)
524 #define LINUX_S_ISSOCK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFSOCK)
527 * ext2 size of an inode
529 #define EXT2_I_SIZE(i) ((i)->i_size | ((__u64) (i)->i_size_high << 32))
532 * ext2_icount_t abstraction
534 #define EXT2_ICOUNT_OPT_INCREMENT 0x01
536 typedef struct ext2_icount *ext2_icount_t;
539 * Flags for ext2fs_bmap
541 #define BMAP_ALLOC 0x0001
542 #define BMAP_SET 0x0002
543 #define BMAP_UNINIT 0x0004
544 #define BMAP_ZERO 0x0008
547 * Returned flags from ext2fs_bmap
549 #define BMAP_RET_UNINIT 0x0001
552 * Flags for imager.c functions
554 #define IMAGER_FLAG_INODEMAP 1
555 #define IMAGER_FLAG_SPARSEWRITE 2
558 * For checking structure magic numbers...
561 #define EXT2_CHECK_MAGIC(struct, code) \
562 if ((struct)->magic != (code)) return (code)
565 * Features supported by this version of the library
567 #define EXT2_LIB_FEATURE_COMPAT_SUPP (EXT2_FEATURE_COMPAT_DIR_PREALLOC|\
568 EXT2_FEATURE_COMPAT_IMAGIC_INODES|\
569 EXT3_FEATURE_COMPAT_HAS_JOURNAL|\
570 EXT2_FEATURE_COMPAT_RESIZE_INODE|\
571 EXT2_FEATURE_COMPAT_DIR_INDEX|\
572 EXT2_FEATURE_COMPAT_EXT_ATTR|\
573 EXT4_FEATURE_COMPAT_SPARSE_SUPER2)
576 #define EXT4_LIB_INCOMPAT_MMP EXT4_FEATURE_INCOMPAT_MMP
578 #define EXT4_LIB_INCOMPAT_MMP (0)
581 #define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\
582 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\
583 EXT2_FEATURE_INCOMPAT_META_BG|\
584 EXT3_FEATURE_INCOMPAT_RECOVER|\
585 EXT3_FEATURE_INCOMPAT_EXTENTS|\
586 EXT4_FEATURE_INCOMPAT_FLEX_BG|\
587 EXT4_LIB_INCOMPAT_MMP|\
588 EXT4_FEATURE_INCOMPAT_64BIT|\
589 EXT4_FEATURE_INCOMPAT_INLINE_DATA|\
590 EXT4_FEATURE_INCOMPAT_ENCRYPT|\
591 EXT4_FEATURE_INCOMPAT_CSUM_SEED)
593 #define EXT2_LIB_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|\
594 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|\
595 EXT2_FEATURE_RO_COMPAT_LARGE_FILE|\
596 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|\
597 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|\
598 EXT4_FEATURE_RO_COMPAT_GDT_CSUM|\
599 EXT4_FEATURE_RO_COMPAT_BIGALLOC|\
600 EXT4_FEATURE_RO_COMPAT_QUOTA|\
601 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM|\
602 EXT4_FEATURE_RO_COMPAT_READONLY |\
603 EXT4_FEATURE_RO_COMPAT_PROJECT)
606 * These features are only allowed if EXT2_FLAG_SOFTSUPP_FEATURES is passed
609 #define EXT2_LIB_SOFTSUPP_INCOMPAT (0)
610 #define EXT2_LIB_SOFTSUPP_RO_COMPAT (EXT4_FEATURE_RO_COMPAT_REPLICA)
613 /* Translate a block number to a cluster number */
614 #define EXT2FS_CLUSTER_RATIO(fs) (1 << (fs)->cluster_ratio_bits)
615 #define EXT2FS_CLUSTER_MASK(fs) (EXT2FS_CLUSTER_RATIO(fs) - 1)
616 #define EXT2FS_B2C(fs, blk) ((blk) >> (fs)->cluster_ratio_bits)
617 /* Translate a cluster number to a block number */
618 #define EXT2FS_C2B(fs, cluster) ((cluster) << (fs)->cluster_ratio_bits)
619 /* Translate # of blks to # of clusters */
620 #define EXT2FS_NUM_B2C(fs, blks) (((blks) + EXT2FS_CLUSTER_MASK(fs)) >> \
621 (fs)->cluster_ratio_bits)
623 #if defined(HAVE_FSTAT64) && !defined(__OSX_AVAILABLE_BUT_DEPRECATED)
624 typedef struct stat64 ext2fs_struct_stat;
626 typedef struct stat ext2fs_struct_stat;
630 * For ext2fs_close2() and ext2fs_flush2(), this flag allows you to
631 * avoid the fsync call.
633 #define EXT2_FLAG_FLUSH_NO_SYNC 1
636 * Modify and iterate extended attributes
638 struct ext2_xattr_handle;
639 #define XATTR_ABORT 1
640 #define XATTR_CHANGED 2
643 * function prototypes
645 static inline int ext2fs_has_group_desc_csum(ext2_filsys fs)
647 return ext2fs_has_feature_metadata_csum(fs->super) ||
648 ext2fs_has_feature_gdt_csum(fs->super);
651 /* The LARGE_FILE feature should be set if we have stored files 2GB+ in size */
652 static inline int ext2fs_needs_large_file_feature(unsigned long long file_size)
654 return file_size >= 0x80000000ULL;
658 extern void ext2fs_clear_block_uninit(ext2_filsys fs, dgrp_t group);
659 extern errcode_t ext2fs_new_inode(ext2_filsys fs, ext2_ino_t dir, int mode,
660 ext2fs_inode_bitmap map, ext2_ino_t *ret);
661 extern errcode_t ext2fs_new_block(ext2_filsys fs, blk_t goal,
662 ext2fs_block_bitmap map, blk_t *ret);
663 extern errcode_t ext2fs_new_block2(ext2_filsys fs, blk64_t goal,
664 ext2fs_block_bitmap map, blk64_t *ret);
665 extern errcode_t ext2fs_get_free_blocks(ext2_filsys fs, blk_t start,
666 blk_t finish, int num,
667 ext2fs_block_bitmap map,
669 extern errcode_t ext2fs_get_free_blocks2(ext2_filsys fs, blk64_t start,
670 blk64_t finish, int num,
671 ext2fs_block_bitmap map,
673 extern errcode_t ext2fs_alloc_block(ext2_filsys fs, blk_t goal,
674 char *block_buf, blk_t *ret);
675 extern errcode_t ext2fs_alloc_block2(ext2_filsys fs, blk64_t goal,
676 char *block_buf, blk64_t *ret);
677 extern void ext2fs_set_alloc_block_callback(ext2_filsys fs,
678 errcode_t (*func)(ext2_filsys fs,
681 errcode_t (**old)(ext2_filsys fs,
684 blk64_t ext2fs_find_inode_goal(ext2_filsys fs, ext2_ino_t ino,
685 struct ext2_inode *inode, blk64_t lblk);
686 extern void ext2fs_set_new_range_callback(ext2_filsys fs,
687 errcode_t (*func)(ext2_filsys fs, int flags, blk64_t goal,
688 blk64_t len, blk64_t *pblk, blk64_t *plen),
689 errcode_t (**old)(ext2_filsys fs, int flags, blk64_t goal,
690 blk64_t len, blk64_t *pblk, blk64_t *plen));
691 extern void ext2fs_set_block_alloc_stats_range_callback(ext2_filsys fs,
692 void (*func)(ext2_filsys fs, blk64_t blk,
693 blk_t num, int inuse),
694 void (**old)(ext2_filsys fs, blk64_t blk,
695 blk_t num, int inuse));
696 #define EXT2_NEWRANGE_FIXED_GOAL (0x1)
697 #define EXT2_NEWRANGE_MIN_LENGTH (0x2)
698 #define EXT2_NEWRANGE_ALL_FLAGS (0x3)
699 errcode_t ext2fs_new_range(ext2_filsys fs, int flags, blk64_t goal,
700 blk64_t len, ext2fs_block_bitmap map, blk64_t *pblk,
702 #define EXT2_ALLOCRANGE_FIXED_GOAL (0x1)
703 #define EXT2_ALLOCRANGE_ZERO_BLOCKS (0x2)
704 #define EXT2_ALLOCRANGE_ALL_FLAGS (0x3)
705 errcode_t ext2fs_alloc_range(ext2_filsys fs, int flags, blk64_t goal,
706 blk_t len, blk64_t *ret);
709 extern int ext2fs_reserve_super_and_bgd(ext2_filsys fs,
711 ext2fs_block_bitmap bmap);
712 extern void ext2fs_set_block_alloc_stats_callback(ext2_filsys fs,
713 void (*func)(ext2_filsys fs,
716 void (**old)(ext2_filsys fs,
721 void ext2fs_inode_alloc_stats(ext2_filsys fs, ext2_ino_t ino, int inuse);
722 void ext2fs_inode_alloc_stats2(ext2_filsys fs, ext2_ino_t ino,
723 int inuse, int isdir);
724 void ext2fs_block_alloc_stats(ext2_filsys fs, blk_t blk, int inuse);
725 void ext2fs_block_alloc_stats2(ext2_filsys fs, blk64_t blk, int inuse);
726 void ext2fs_block_alloc_stats_range(ext2_filsys fs, blk64_t blk,
727 blk_t num, int inuse);
730 extern errcode_t ext2fs_allocate_tables(ext2_filsys fs);
731 extern errcode_t ext2fs_allocate_group_table(ext2_filsys fs, dgrp_t group,
732 ext2fs_block_bitmap bmap);
735 extern errcode_t ext2fs_u32_list_create(ext2_u32_list *ret, int size);
736 extern errcode_t ext2fs_u32_list_add(ext2_u32_list bb, __u32 blk);
737 extern int ext2fs_u32_list_find(ext2_u32_list bb, __u32 blk);
738 extern int ext2fs_u32_list_test(ext2_u32_list bb, blk_t blk);
739 extern errcode_t ext2fs_u32_list_iterate_begin(ext2_u32_list bb,
740 ext2_u32_iterate *ret);
741 extern int ext2fs_u32_list_iterate(ext2_u32_iterate iter, blk_t *blk);
742 extern void ext2fs_u32_list_iterate_end(ext2_u32_iterate iter);
743 extern errcode_t ext2fs_u32_copy(ext2_u32_list src, ext2_u32_list *dest);
744 extern int ext2fs_u32_list_equal(ext2_u32_list bb1, ext2_u32_list bb2);
746 extern errcode_t ext2fs_badblocks_list_create(ext2_badblocks_list *ret,
748 extern errcode_t ext2fs_badblocks_list_add(ext2_badblocks_list bb,
750 extern int ext2fs_badblocks_list_test(ext2_badblocks_list bb,
752 extern int ext2fs_u32_list_del(ext2_u32_list bb, __u32 blk);
753 extern void ext2fs_badblocks_list_del(ext2_u32_list bb, __u32 blk);
755 ext2fs_badblocks_list_iterate_begin(ext2_badblocks_list bb,
756 ext2_badblocks_iterate *ret);
757 extern int ext2fs_badblocks_list_iterate(ext2_badblocks_iterate iter,
759 extern void ext2fs_badblocks_list_iterate_end(ext2_badblocks_iterate iter);
760 extern errcode_t ext2fs_badblocks_copy(ext2_badblocks_list src,
761 ext2_badblocks_list *dest);
762 extern int ext2fs_badblocks_equal(ext2_badblocks_list bb1,
763 ext2_badblocks_list bb2);
764 extern int ext2fs_u32_list_count(ext2_u32_list bb);
767 extern errcode_t badblocks_list_create(badblocks_list *ret, int size);
768 extern errcode_t badblocks_list_add(badblocks_list bb, blk_t blk);
769 extern int badblocks_list_test(badblocks_list bb, blk_t blk);
770 extern errcode_t badblocks_list_iterate_begin(badblocks_list bb,
771 badblocks_iterate *ret);
772 extern int badblocks_list_iterate(badblocks_iterate iter, blk_t *blk);
773 extern void badblocks_list_iterate_end(badblocks_iterate iter);
774 extern void badblocks_list_free(badblocks_list bb);
777 extern errcode_t ext2fs_update_bb_inode(ext2_filsys fs,
778 ext2_badblocks_list bb_list);
781 extern void ext2fs_free_block_bitmap(ext2fs_block_bitmap bitmap);
782 extern void ext2fs_free_inode_bitmap(ext2fs_inode_bitmap bitmap);
783 extern errcode_t ext2fs_copy_bitmap(ext2fs_generic_bitmap src,
784 ext2fs_generic_bitmap *dest);
785 extern errcode_t ext2fs_write_inode_bitmap(ext2_filsys fs);
786 extern errcode_t ext2fs_write_block_bitmap (ext2_filsys fs);
787 extern errcode_t ext2fs_read_inode_bitmap (ext2_filsys fs);
788 extern errcode_t ext2fs_read_block_bitmap(ext2_filsys fs);
789 extern errcode_t ext2fs_allocate_block_bitmap(ext2_filsys fs,
791 ext2fs_block_bitmap *ret);
792 extern errcode_t ext2fs_allocate_subcluster_bitmap(ext2_filsys fs,
794 ext2fs_block_bitmap *ret);
795 extern int ext2fs_get_bitmap_granularity(ext2fs_block_bitmap bitmap);
796 extern errcode_t ext2fs_allocate_inode_bitmap(ext2_filsys fs,
798 ext2fs_inode_bitmap *ret);
799 extern errcode_t ext2fs_fudge_inode_bitmap_end(ext2fs_inode_bitmap bitmap,
800 ext2_ino_t end, ext2_ino_t *oend);
801 extern errcode_t ext2fs_fudge_block_bitmap_end(ext2fs_block_bitmap bitmap,
802 blk_t end, blk_t *oend);
803 extern errcode_t ext2fs_fudge_block_bitmap_end2(ext2fs_block_bitmap bitmap,
804 blk64_t end, blk64_t *oend);
805 extern void ext2fs_clear_inode_bitmap(ext2fs_inode_bitmap bitmap);
806 extern void ext2fs_clear_block_bitmap(ext2fs_block_bitmap bitmap);
807 extern errcode_t ext2fs_read_bitmaps(ext2_filsys fs);
808 extern errcode_t ext2fs_write_bitmaps(ext2_filsys fs);
809 extern errcode_t ext2fs_resize_inode_bitmap(__u32 new_end, __u32 new_real_end,
810 ext2fs_inode_bitmap bmap);
811 extern errcode_t ext2fs_resize_inode_bitmap2(__u64 new_end,
813 ext2fs_inode_bitmap bmap);
814 extern errcode_t ext2fs_resize_block_bitmap(__u32 new_end, __u32 new_real_end,
815 ext2fs_block_bitmap bmap);
816 extern errcode_t ext2fs_resize_block_bitmap2(__u64 new_end,
818 ext2fs_block_bitmap bmap);
819 extern errcode_t ext2fs_compare_block_bitmap(ext2fs_block_bitmap bm1,
820 ext2fs_block_bitmap bm2);
821 extern errcode_t ext2fs_compare_inode_bitmap(ext2fs_inode_bitmap bm1,
822 ext2fs_inode_bitmap bm2);
823 extern errcode_t ext2fs_set_inode_bitmap_range(ext2fs_inode_bitmap bmap,
824 ext2_ino_t start, unsigned int num,
826 extern errcode_t ext2fs_set_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
827 __u64 start, size_t num,
829 extern errcode_t ext2fs_get_inode_bitmap_range(ext2fs_inode_bitmap bmap,
830 ext2_ino_t start, unsigned int num,
832 extern errcode_t ext2fs_get_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
833 __u64 start, size_t num,
835 extern errcode_t ext2fs_set_block_bitmap_range(ext2fs_block_bitmap bmap,
836 blk_t start, unsigned int num,
838 extern errcode_t ext2fs_set_block_bitmap_range2(ext2fs_block_bitmap bmap,
839 blk64_t start, size_t num,
841 extern errcode_t ext2fs_get_block_bitmap_range(ext2fs_block_bitmap bmap,
842 blk_t start, unsigned int num,
844 extern errcode_t ext2fs_get_block_bitmap_range2(ext2fs_block_bitmap bmap,
845 blk64_t start, size_t num,
849 extern __u32 ext2fs_inode_bitmap_checksum(ext2_filsys fs, dgrp_t group);
850 extern __u32 ext2fs_block_bitmap_checksum(ext2_filsys fs, dgrp_t group);
851 extern dgrp_t ext2fs_group_of_blk2(ext2_filsys fs, blk64_t);
852 extern blk64_t ext2fs_group_first_block2(ext2_filsys fs, dgrp_t group);
853 extern blk64_t ext2fs_group_last_block2(ext2_filsys fs, dgrp_t group);
854 extern int ext2fs_group_blocks_count(ext2_filsys fs, dgrp_t group);
855 extern blk64_t ext2fs_inode_data_blocks2(ext2_filsys fs,
856 struct ext2_inode *inode);
857 extern blk64_t ext2fs_inode_i_blocks(ext2_filsys fs,
858 struct ext2_inode *inode);
859 extern blk64_t ext2fs_blocks_count(struct ext2_super_block *super);
860 extern void ext2fs_blocks_count_set(struct ext2_super_block *super,
862 extern void ext2fs_blocks_count_add(struct ext2_super_block *super,
864 extern blk64_t ext2fs_r_blocks_count(struct ext2_super_block *super);
865 extern void ext2fs_r_blocks_count_set(struct ext2_super_block *super,
867 extern void ext2fs_r_blocks_count_add(struct ext2_super_block *super,
869 extern blk64_t ext2fs_free_blocks_count(struct ext2_super_block *super);
870 extern void ext2fs_free_blocks_count_set(struct ext2_super_block *super,
872 extern void ext2fs_free_blocks_count_add(struct ext2_super_block *super,
874 /* Block group descriptor accessor functions */
875 extern struct ext2_group_desc *ext2fs_group_desc(ext2_filsys fs,
876 struct opaque_ext2_group_desc *gdp,
878 extern blk64_t ext2fs_block_bitmap_csum(ext2_filsys fs, dgrp_t group);
879 extern blk64_t ext2fs_block_bitmap_loc(ext2_filsys fs, dgrp_t group);
880 extern void ext2fs_block_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
882 extern __u32 ext2fs_inode_bitmap_csum(ext2_filsys fs, dgrp_t group);
883 extern blk64_t ext2fs_inode_bitmap_loc(ext2_filsys fs, dgrp_t group);
884 extern void ext2fs_inode_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
886 extern blk64_t ext2fs_inode_table_loc(ext2_filsys fs, dgrp_t group);
887 extern void ext2fs_inode_table_loc_set(ext2_filsys fs, dgrp_t group,
889 extern __u32 ext2fs_bg_free_blocks_count(ext2_filsys fs, dgrp_t group);
890 extern void ext2fs_bg_free_blocks_count_set(ext2_filsys fs, dgrp_t group,
892 extern __u32 ext2fs_bg_free_inodes_count(ext2_filsys fs, dgrp_t group);
893 extern void ext2fs_bg_free_inodes_count_set(ext2_filsys fs, dgrp_t group,
895 extern __u32 ext2fs_bg_used_dirs_count(ext2_filsys fs, dgrp_t group);
896 extern void ext2fs_bg_used_dirs_count_set(ext2_filsys fs, dgrp_t group,
898 extern __u32 ext2fs_bg_itable_unused(ext2_filsys fs, dgrp_t group);
899 extern void ext2fs_bg_itable_unused_set(ext2_filsys fs, dgrp_t group,
901 extern __u16 ext2fs_bg_flags(ext2_filsys fs, dgrp_t group);
902 extern void ext2fs_bg_flags_zap(ext2_filsys fs, dgrp_t group);
903 extern int ext2fs_bg_flags_test(ext2_filsys fs, dgrp_t group, __u16 bg_flag);
904 extern void ext2fs_bg_flags_set(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
905 extern void ext2fs_bg_flags_clear(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
906 extern __u16 ext2fs_bg_checksum(ext2_filsys fs, dgrp_t group);
907 extern void ext2fs_bg_checksum_set(ext2_filsys fs, dgrp_t group, __u16 checksum);
908 extern blk64_t ext2fs_file_acl_block(ext2_filsys fs,
909 const struct ext2_inode *inode);
910 extern void ext2fs_file_acl_block_set(ext2_filsys fs,
911 struct ext2_inode *inode, blk64_t blk);
912 extern errcode_t ext2fs_inode_size_set(ext2_filsys fs, struct ext2_inode *inode,
916 extern errcode_t ext2fs_block_iterate(ext2_filsys fs,
920 int (*func)(ext2_filsys fs,
925 errcode_t ext2fs_block_iterate2(ext2_filsys fs,
929 int (*func)(ext2_filsys fs,
931 e2_blkcnt_t blockcnt,
936 errcode_t ext2fs_block_iterate3(ext2_filsys fs,
940 int (*func)(ext2_filsys fs,
942 e2_blkcnt_t blockcnt,
949 extern errcode_t ext2fs_bmap(ext2_filsys fs, ext2_ino_t ino,
950 struct ext2_inode *inode,
951 char *block_buf, int bmap_flags,
952 blk_t block, blk_t *phys_blk);
953 extern errcode_t ext2fs_bmap2(ext2_filsys fs, ext2_ino_t ino,
954 struct ext2_inode *inode,
955 char *block_buf, int bmap_flags, blk64_t block,
956 int *ret_flags, blk64_t *phys_blk);
957 errcode_t ext2fs_map_cluster_block(ext2_filsys fs, ext2_ino_t ino,
958 struct ext2_inode *inode, blk64_t lblk,
963 extern errcode_t ext2fs_move_blocks(ext2_filsys fs,
964 ext2fs_block_bitmap reserve,
965 ext2fs_block_bitmap alloc_map,
970 extern errcode_t ext2fs_check_desc(ext2_filsys fs);
973 extern errcode_t ext2fs_close(ext2_filsys fs);
974 extern errcode_t ext2fs_close2(ext2_filsys fs, int flags);
975 extern errcode_t ext2fs_close_free(ext2_filsys *fs);
976 extern errcode_t ext2fs_flush(ext2_filsys fs);
977 extern errcode_t ext2fs_flush2(ext2_filsys fs, int flags);
978 extern int ext2fs_bg_has_super(ext2_filsys fs, dgrp_t group_block);
979 extern errcode_t ext2fs_super_and_bgd_loc2(ext2_filsys fs,
981 blk64_t *ret_super_blk,
982 blk64_t *ret_old_desc_blk,
983 blk64_t *ret_new_desc_blk,
984 blk_t *ret_used_blks);
985 extern int ext2fs_super_and_bgd_loc(ext2_filsys fs,
987 blk_t *ret_super_blk,
988 blk_t *ret_old_desc_blk,
989 blk_t *ret_new_desc_blk,
991 extern void ext2fs_update_dynamic_rev(ext2_filsys fs);
994 extern __u32 ext2fs_crc32_be(__u32 crc, unsigned char const *p, size_t len);
995 extern __u32 ext2fs_crc32c_le(__u32 crc, unsigned char const *p, size_t len);
998 extern void ext2fs_init_csum_seed(ext2_filsys fs);
999 extern errcode_t ext2fs_mmp_csum_set(ext2_filsys fs, struct mmp_struct *mmp);
1000 extern int ext2fs_mmp_csum_verify(ext2_filsys, struct mmp_struct *mmp);
1001 extern int ext2fs_verify_csum_type(ext2_filsys fs, struct ext2_super_block *sb);
1002 extern errcode_t ext2fs_superblock_csum_set(ext2_filsys fs,
1003 struct ext2_super_block *sb);
1004 extern int ext2fs_superblock_csum_verify(ext2_filsys fs,
1005 struct ext2_super_block *sb);
1006 extern errcode_t ext2fs_ext_attr_block_csum_set(ext2_filsys fs,
1007 ext2_ino_t inum, blk64_t block,
1008 struct ext2_ext_attr_header *hdr);
1009 extern int ext2fs_ext_attr_block_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1011 struct ext2_ext_attr_header *hdr);
1012 #define EXT2_DIRENT_TAIL(block, blocksize) \
1013 ((struct ext2_dir_entry_tail *)(((char *)(block)) + \
1014 (blocksize) - sizeof(struct ext2_dir_entry_tail)))
1016 extern void ext2fs_initialize_dirent_tail(ext2_filsys fs,
1017 struct ext2_dir_entry_tail *t);
1018 extern int ext2fs_dirent_has_tail(ext2_filsys fs,
1019 struct ext2_dir_entry *dirent);
1020 extern int ext2fs_dirent_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1021 struct ext2_dir_entry *dirent);
1022 extern int ext2fs_dir_block_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1023 struct ext2_dir_entry *dirent);
1024 extern errcode_t ext2fs_dir_block_csum_set(ext2_filsys fs, ext2_ino_t inum,
1025 struct ext2_dir_entry *dirent);
1026 extern errcode_t ext2fs_get_dx_countlimit(ext2_filsys fs,
1027 struct ext2_dir_entry *dirent,
1028 struct ext2_dx_countlimit **cc,
1030 extern errcode_t ext2fs_extent_block_csum_set(ext2_filsys fs,
1032 struct ext3_extent_header *eh);
1033 extern int ext2fs_extent_block_csum_verify(ext2_filsys fs,
1035 struct ext3_extent_header *eh);
1036 extern errcode_t ext2fs_block_bitmap_csum_set(ext2_filsys fs, dgrp_t group,
1037 char *bitmap, int size);
1038 extern int ext2fs_block_bitmap_csum_verify(ext2_filsys fs, dgrp_t group,
1039 char *bitmap, int size);
1040 extern errcode_t ext2fs_inode_bitmap_csum_set(ext2_filsys fs, dgrp_t group,
1041 char *bitmap, int size);
1042 extern int ext2fs_inode_bitmap_csum_verify(ext2_filsys fs, dgrp_t group,
1043 char *bitmap, int size);
1044 extern errcode_t ext2fs_inode_csum_set(ext2_filsys fs, ext2_ino_t inum,
1045 struct ext2_inode_large *inode);
1046 extern int ext2fs_inode_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1047 struct ext2_inode_large *inode);
1048 extern void ext2fs_group_desc_csum_set(ext2_filsys fs, dgrp_t group);
1049 extern int ext2fs_group_desc_csum_verify(ext2_filsys fs, dgrp_t group);
1050 extern errcode_t ext2fs_set_gdt_csum(ext2_filsys fs);
1051 extern __u16 ext2fs_group_desc_csum(ext2_filsys fs, dgrp_t group);
1054 extern errcode_t ext2fs_init_dblist(ext2_filsys fs, ext2_dblist *ret_dblist);
1055 extern errcode_t ext2fs_add_dir_block(ext2_dblist dblist, ext2_ino_t ino,
1056 blk_t blk, int blockcnt);
1057 extern errcode_t ext2fs_add_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
1058 blk64_t blk, e2_blkcnt_t blockcnt);
1059 extern void ext2fs_dblist_sort(ext2_dblist dblist,
1060 EXT2_QSORT_TYPE (*sortfunc)(const void *,
1062 extern void ext2fs_dblist_sort2(ext2_dblist dblist,
1063 EXT2_QSORT_TYPE (*sortfunc)(const void *,
1065 extern errcode_t ext2fs_dblist_iterate(ext2_dblist dblist,
1066 int (*func)(ext2_filsys fs, struct ext2_db_entry *db_info,
1069 extern errcode_t ext2fs_dblist_iterate2(ext2_dblist dblist,
1070 int (*func)(ext2_filsys fs, struct ext2_db_entry2 *db_info,
1073 extern errcode_t ext2fs_dblist_iterate3(ext2_dblist dblist,
1074 int (*func)(ext2_filsys fs, struct ext2_db_entry2 *db_info,
1076 unsigned long long start,
1077 unsigned long long count,
1079 extern errcode_t ext2fs_set_dir_block(ext2_dblist dblist, ext2_ino_t ino,
1080 blk_t blk, int blockcnt);
1081 extern errcode_t ext2fs_set_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
1082 blk64_t blk, e2_blkcnt_t blockcnt);
1083 extern errcode_t ext2fs_copy_dblist(ext2_dblist src,
1085 extern int ext2fs_dblist_count(ext2_dblist dblist);
1086 extern blk64_t ext2fs_dblist_count2(ext2_dblist dblist);
1087 extern errcode_t ext2fs_dblist_get_last(ext2_dblist dblist,
1088 struct ext2_db_entry **entry);
1089 extern errcode_t ext2fs_dblist_get_last2(ext2_dblist dblist,
1090 struct ext2_db_entry2 **entry);
1091 extern errcode_t ext2fs_dblist_drop_last(ext2_dblist dblist);
1095 ext2fs_dblist_dir_iterate(ext2_dblist dblist,
1098 int (*func)(ext2_ino_t dir,
1100 struct ext2_dir_entry *dirent,
1108 /* digest_encode.c */
1109 #define EXT2FS_DIGEST_SIZE EXT2FS_SHA256_LENGTH
1110 extern int ext2fs_digest_encode(const char *src, int len, char *dst);
1111 extern int ext2fs_digest_decode(const char *src, int len, char *dst);
1115 extern errcode_t ext2fs_read_dir_block(ext2_filsys fs, blk_t block,
1117 extern errcode_t ext2fs_read_dir_block2(ext2_filsys fs, blk_t block,
1118 void *buf, int flags);
1119 extern errcode_t ext2fs_read_dir_block3(ext2_filsys fs, blk64_t block,
1120 void *buf, int flags);
1121 extern errcode_t ext2fs_read_dir_block4(ext2_filsys fs, blk64_t block,
1122 void *buf, int flags, ext2_ino_t ino);
1123 extern errcode_t ext2fs_write_dir_block(ext2_filsys fs, blk_t block,
1125 extern errcode_t ext2fs_write_dir_block2(ext2_filsys fs, blk_t block,
1126 void *buf, int flags);
1127 extern errcode_t ext2fs_write_dir_block3(ext2_filsys fs, blk64_t block,
1128 void *buf, int flags);
1129 extern errcode_t ext2fs_write_dir_block4(ext2_filsys fs, blk64_t block,
1130 void *buf, int flags, ext2_ino_t ino);
1133 extern errcode_t ext2fs_dirhash(int version, const char *name, int len,
1135 ext2_dirhash_t *ret_hash,
1136 ext2_dirhash_t *ret_minor_hash);
1140 extern errcode_t ext2fs_get_rec_len(ext2_filsys fs,
1141 struct ext2_dir_entry *dirent,
1142 unsigned int *rec_len);
1143 extern errcode_t ext2fs_set_rec_len(ext2_filsys fs,
1145 struct ext2_dir_entry *dirent);
1146 extern errcode_t ext2fs_dir_iterate(ext2_filsys fs,
1150 int (*func)(struct ext2_dir_entry *dirent,
1156 extern errcode_t ext2fs_dir_iterate2(ext2_filsys fs,
1160 int (*func)(ext2_ino_t dir,
1162 struct ext2_dir_entry *dirent,
1170 extern errcode_t ext2fs_dup_handle(ext2_filsys src, ext2_filsys *dest);
1173 extern errcode_t ext2fs_expand_dir(ext2_filsys fs, ext2_ino_t dir);
1176 extern __u32 ext2fs_ext_attr_hash_entry(struct ext2_ext_attr_entry *entry,
1178 extern errcode_t ext2fs_read_ext_attr(ext2_filsys fs, blk_t block, void *buf);
1179 extern errcode_t ext2fs_read_ext_attr2(ext2_filsys fs, blk64_t block,
1181 extern errcode_t ext2fs_read_ext_attr3(ext2_filsys fs, blk64_t block,
1182 void *buf, ext2_ino_t inum);
1183 extern errcode_t ext2fs_write_ext_attr(ext2_filsys fs, blk_t block,
1185 extern errcode_t ext2fs_write_ext_attr2(ext2_filsys fs, blk64_t block,
1187 extern errcode_t ext2fs_write_ext_attr3(ext2_filsys fs, blk64_t block,
1188 void *buf, ext2_ino_t inum);
1189 extern errcode_t ext2fs_adjust_ea_refcount(ext2_filsys fs, blk_t blk,
1191 int adjust, __u32 *newcount);
1192 extern errcode_t ext2fs_adjust_ea_refcount2(ext2_filsys fs, blk64_t blk,
1194 int adjust, __u32 *newcount);
1195 extern errcode_t ext2fs_adjust_ea_refcount3(ext2_filsys fs, blk64_t blk,
1197 int adjust, __u32 *newcount,
1199 errcode_t ext2fs_xattrs_write(struct ext2_xattr_handle *handle);
1200 errcode_t ext2fs_xattrs_read(struct ext2_xattr_handle *handle);
1201 errcode_t ext2fs_xattrs_iterate(struct ext2_xattr_handle *h,
1202 int (*func)(char *name, char *value,
1203 size_t value_len, void *data),
1205 errcode_t ext2fs_xattr_get(struct ext2_xattr_handle *h, const char *key,
1206 void **value, size_t *value_len);
1207 errcode_t ext2fs_xattr_set(struct ext2_xattr_handle *handle,
1211 errcode_t ext2fs_xattr_remove(struct ext2_xattr_handle *handle,
1213 errcode_t ext2fs_xattrs_open(ext2_filsys fs, ext2_ino_t ino,
1214 struct ext2_xattr_handle **handle);
1215 errcode_t ext2fs_xattrs_close(struct ext2_xattr_handle **handle);
1216 errcode_t ext2fs_free_ext_attr(ext2_filsys fs, ext2_ino_t ino,
1217 struct ext2_inode_large *inode);
1218 errcode_t ext2fs_xattrs_count(struct ext2_xattr_handle *handle, size_t *count);
1219 errcode_t ext2fs_xattr_inode_max_size(ext2_filsys fs, ext2_ino_t ino,
1223 extern errcode_t ext2fs_extent_header_verify(void *ptr, int size);
1224 extern errcode_t ext2fs_extent_open(ext2_filsys fs, ext2_ino_t ino,
1225 ext2_extent_handle_t *handle);
1226 extern errcode_t ext2fs_extent_open2(ext2_filsys fs, ext2_ino_t ino,
1227 struct ext2_inode *inode,
1228 ext2_extent_handle_t *ret_handle);
1229 extern void ext2fs_extent_free(ext2_extent_handle_t handle);
1230 extern errcode_t ext2fs_extent_get(ext2_extent_handle_t handle,
1231 int flags, struct ext2fs_extent *extent);
1232 extern errcode_t ext2fs_extent_node_split(ext2_extent_handle_t handle);
1233 extern errcode_t ext2fs_extent_replace(ext2_extent_handle_t handle, int flags,
1234 struct ext2fs_extent *extent);
1235 extern errcode_t ext2fs_extent_insert(ext2_extent_handle_t handle, int flags,
1236 struct ext2fs_extent *extent);
1237 extern errcode_t ext2fs_extent_set_bmap(ext2_extent_handle_t handle,
1238 blk64_t logical, blk64_t physical,
1240 extern errcode_t ext2fs_extent_delete(ext2_extent_handle_t handle, int flags);
1241 extern errcode_t ext2fs_extent_get_info(ext2_extent_handle_t handle,
1242 struct ext2_extent_info *info);
1243 extern errcode_t ext2fs_extent_goto(ext2_extent_handle_t handle,
1245 extern errcode_t ext2fs_extent_goto2(ext2_extent_handle_t handle,
1246 int leaf_level, blk64_t blk);
1247 extern errcode_t ext2fs_extent_fix_parents(ext2_extent_handle_t handle);
1248 size_t ext2fs_max_extent_depth(ext2_extent_handle_t handle);
1251 #define EXT2_FALLOCATE_ZERO_BLOCKS (0x1)
1252 #define EXT2_FALLOCATE_FORCE_INIT (0x2)
1253 #define EXT2_FALLOCATE_FORCE_UNINIT (0x4)
1254 #define EXT2_FALLOCATE_INIT_BEYOND_EOF (0x8)
1255 #define EXT2_FALLOCATE_ALL_FLAGS (0xF)
1256 errcode_t ext2fs_fallocate(ext2_filsys fs, int flags, ext2_ino_t ino,
1257 struct ext2_inode *inode, blk64_t goal,
1258 blk64_t start, blk64_t len);
1261 extern errcode_t ext2fs_file_open2(ext2_filsys fs, ext2_ino_t ino,
1262 struct ext2_inode *inode,
1263 int flags, ext2_file_t *ret);
1264 extern errcode_t ext2fs_file_open(ext2_filsys fs, ext2_ino_t ino,
1265 int flags, ext2_file_t *ret);
1266 extern ext2_filsys ext2fs_file_get_fs(ext2_file_t file);
1267 struct ext2_inode *ext2fs_file_get_inode(ext2_file_t file);
1268 extern ext2_ino_t ext2fs_file_get_inode_num(ext2_file_t file);
1269 extern errcode_t ext2fs_file_close(ext2_file_t file);
1270 extern errcode_t ext2fs_file_flush(ext2_file_t file);
1271 extern errcode_t ext2fs_file_read(ext2_file_t file, void *buf,
1272 unsigned int wanted, unsigned int *got);
1273 extern errcode_t ext2fs_file_write(ext2_file_t file, const void *buf,
1274 unsigned int nbytes, unsigned int *written);
1275 extern errcode_t ext2fs_file_llseek(ext2_file_t file, __u64 offset,
1276 int whence, __u64 *ret_pos);
1277 extern errcode_t ext2fs_file_lseek(ext2_file_t file, ext2_off_t offset,
1278 int whence, ext2_off_t *ret_pos);
1279 errcode_t ext2fs_file_get_lsize(ext2_file_t file, __u64 *ret_size);
1280 extern ext2_off_t ext2fs_file_get_size(ext2_file_t file);
1281 extern errcode_t ext2fs_file_set_size(ext2_file_t file, ext2_off_t size);
1282 extern errcode_t ext2fs_file_set_size2(ext2_file_t file, ext2_off64_t size);
1285 extern char *ext2fs_find_block_device(dev_t device);
1288 extern errcode_t ext2fs_sync_device(int fd, int flushb);
1291 extern void ext2fs_free(ext2_filsys fs);
1292 extern void ext2fs_free_dblist(ext2_dblist dblist);
1293 extern void ext2fs_badblocks_list_free(ext2_badblocks_list bb);
1294 extern void ext2fs_u32_list_free(ext2_u32_list bb);
1297 extern void ext2fs_free_generic_bitmap(ext2fs_inode_bitmap bitmap);
1298 extern errcode_t ext2fs_make_generic_bitmap(errcode_t magic, ext2_filsys fs,
1299 __u32 start, __u32 end,
1301 const char *descr, char *init_map,
1302 ext2fs_generic_bitmap *ret);
1303 extern errcode_t ext2fs_allocate_generic_bitmap(__u32 start,
1307 ext2fs_generic_bitmap *ret);
1308 extern errcode_t ext2fs_copy_generic_bitmap(ext2fs_generic_bitmap src,
1309 ext2fs_generic_bitmap *dest);
1310 extern void ext2fs_clear_generic_bitmap(ext2fs_generic_bitmap bitmap);
1311 extern errcode_t ext2fs_fudge_generic_bitmap_end(ext2fs_inode_bitmap bitmap,
1316 extern void ext2fs_set_generic_bitmap_padding(ext2fs_generic_bitmap map);
1317 extern errcode_t ext2fs_resize_generic_bitmap(errcode_t magic,
1320 ext2fs_generic_bitmap bmap);
1321 extern errcode_t ext2fs_compare_generic_bitmap(errcode_t magic, errcode_t neq,
1322 ext2fs_generic_bitmap bm1,
1323 ext2fs_generic_bitmap bm2);
1324 extern errcode_t ext2fs_get_generic_bitmap_range(ext2fs_generic_bitmap bmap,
1326 __u32 start, __u32 num,
1328 extern errcode_t ext2fs_set_generic_bitmap_range(ext2fs_generic_bitmap bmap,
1330 __u32 start, __u32 num,
1332 extern errcode_t ext2fs_find_first_zero_generic_bitmap(ext2fs_generic_bitmap bitmap,
1333 __u32 start, __u32 end,
1335 extern errcode_t ext2fs_find_first_set_generic_bitmap(ext2fs_generic_bitmap bitmap,
1336 __u32 start, __u32 end,
1339 /* gen_bitmap64.c */
1340 void ext2fs_free_generic_bmap(ext2fs_generic_bitmap bmap);
1341 errcode_t ext2fs_alloc_generic_bmap(ext2_filsys fs, errcode_t magic,
1342 int type, __u64 start, __u64 end,
1345 ext2fs_generic_bitmap *ret);
1346 errcode_t ext2fs_copy_generic_bmap(ext2fs_generic_bitmap src,
1347 ext2fs_generic_bitmap *dest);
1348 void ext2fs_clear_generic_bmap(ext2fs_generic_bitmap bitmap);
1349 errcode_t ext2fs_fudge_generic_bmap_end(ext2fs_generic_bitmap bitmap,
1351 __u64 end, __u64 *oend);
1352 void ext2fs_set_generic_bmap_padding(ext2fs_generic_bitmap bmap);
1353 errcode_t ext2fs_resize_generic_bmap(ext2fs_generic_bitmap bmap,
1355 __u64 new_real_end);
1356 errcode_t ext2fs_compare_generic_bmap(errcode_t neq,
1357 ext2fs_generic_bitmap bm1,
1358 ext2fs_generic_bitmap bm2);
1359 errcode_t ext2fs_get_generic_bmap_range(ext2fs_generic_bitmap bmap,
1360 __u64 start, unsigned int num,
1362 errcode_t ext2fs_set_generic_bmap_range(ext2fs_generic_bitmap bmap,
1363 __u64 start, unsigned int num,
1365 errcode_t ext2fs_convert_subcluster_bitmap(ext2_filsys fs,
1366 ext2fs_block_bitmap *bitmap);
1368 /* get_num_dirs.c */
1369 extern errcode_t ext2fs_get_num_dirs(ext2_filsys fs, ext2_ino_t *ret_num_dirs);
1372 extern errcode_t ext2fs_get_device_size(const char *file, int blocksize,
1374 extern errcode_t ext2fs_get_device_size2(const char *file, int blocksize,
1375 blk64_t *retblocks);
1378 extern int ext2fs_get_dio_alignment(int fd);
1379 errcode_t ext2fs_get_device_sectsize(const char *file, int *sectsize);
1380 errcode_t ext2fs_get_device_phys_sectsize(const char *file, int *sectsize);
1383 errcode_t ext2fs_iblk_add_blocks(ext2_filsys fs, struct ext2_inode *inode,
1384 blk64_t num_blocks);
1385 errcode_t ext2fs_iblk_sub_blocks(ext2_filsys fs, struct ext2_inode *inode,
1386 blk64_t num_blocks);
1387 errcode_t ext2fs_iblk_set(ext2_filsys fs, struct ext2_inode *inode, blk64_t b);
1390 extern errcode_t ext2fs_image_inode_write(ext2_filsys fs, int fd, int flags);
1391 extern errcode_t ext2fs_image_inode_read(ext2_filsys fs, int fd, int flags);
1392 extern errcode_t ext2fs_image_super_write(ext2_filsys fs, int fd, int flags);
1393 extern errcode_t ext2fs_image_super_read(ext2_filsys fs, int fd, int flags);
1394 extern errcode_t ext2fs_image_bitmap_write(ext2_filsys fs, int fd, int flags);
1395 extern errcode_t ext2fs_image_bitmap_read(ext2_filsys fs, int fd, int flags);
1398 errcode_t ext2fs_read_ind_block(ext2_filsys fs, blk_t blk, void *buf);
1399 errcode_t ext2fs_write_ind_block(ext2_filsys fs, blk_t blk, void *buf);
1402 extern errcode_t ext2fs_initialize(const char *name, int flags,
1403 struct ext2_super_block *param,
1404 io_manager manager, ext2_filsys *ret_fs);
1407 extern void ext2fs_free_icount(ext2_icount_t icount);
1408 extern errcode_t ext2fs_create_icount_tdb(ext2_filsys fs, char *tdb_dir,
1409 int flags, ext2_icount_t *ret);
1410 extern errcode_t ext2fs_create_icount2(ext2_filsys fs, int flags,
1412 ext2_icount_t hint, ext2_icount_t *ret);
1413 extern errcode_t ext2fs_create_icount(ext2_filsys fs, int flags,
1415 ext2_icount_t *ret);
1416 extern errcode_t ext2fs_icount_fetch(ext2_icount_t icount, ext2_ino_t ino,
1418 extern errcode_t ext2fs_icount_increment(ext2_icount_t icount, ext2_ino_t ino,
1420 extern errcode_t ext2fs_icount_decrement(ext2_icount_t icount, ext2_ino_t ino,
1422 extern errcode_t ext2fs_icount_store(ext2_icount_t icount, ext2_ino_t ino,
1424 extern ext2_ino_t ext2fs_get_icount_size(ext2_icount_t icount);
1425 errcode_t ext2fs_icount_validate(ext2_icount_t icount, FILE *);
1429 extern errcode_t ext2fs_get_memalign(unsigned long size,
1430 unsigned long align, void *ptr);
1433 extern errcode_t ext2fs_inline_data_init(ext2_filsys fs, ext2_ino_t ino);
1434 extern errcode_t ext2fs_inline_data_size(ext2_filsys fs, ext2_ino_t ino,
1436 extern errcode_t ext2fs_inline_data_get(ext2_filsys fs, ext2_ino_t ino,
1437 struct ext2_inode *inode,
1438 void *buf, size_t *size);
1439 extern errcode_t ext2fs_inline_data_set(ext2_filsys fs, ext2_ino_t ino,
1440 struct ext2_inode *inode,
1441 void *buf, size_t size);
1444 extern errcode_t ext2fs_create_inode_cache(ext2_filsys fs,
1445 unsigned int cache_size);
1446 extern void ext2fs_free_inode_cache(struct ext2_inode_cache *icache);
1447 extern errcode_t ext2fs_flush_icache(ext2_filsys fs);
1448 extern errcode_t ext2fs_get_next_inode_full(ext2_inode_scan scan,
1450 struct ext2_inode *inode,
1452 #define EXT2_INODE_SCAN_DEFAULT_BUFFER_BLOCKS 8
1453 extern errcode_t ext2fs_open_inode_scan(ext2_filsys fs, int buffer_blocks,
1454 ext2_inode_scan *ret_scan);
1455 extern void ext2fs_close_inode_scan(ext2_inode_scan scan);
1456 extern errcode_t ext2fs_get_next_inode(ext2_inode_scan scan, ext2_ino_t *ino,
1457 struct ext2_inode *inode);
1458 extern errcode_t ext2fs_inode_scan_goto_blockgroup(ext2_inode_scan scan,
1460 extern void ext2fs_set_inode_callback
1461 (ext2_inode_scan scan,
1462 errcode_t (*done_group)(ext2_filsys fs,
1463 ext2_inode_scan scan,
1466 void *done_group_data);
1467 extern int ext2fs_inode_scan_flags(ext2_inode_scan scan, int set_flags,
1469 extern errcode_t ext2fs_read_inode_full(ext2_filsys fs, ext2_ino_t ino,
1470 struct ext2_inode * inode,
1472 extern errcode_t ext2fs_read_inode (ext2_filsys fs, ext2_ino_t ino,
1473 struct ext2_inode * inode);
1474 extern errcode_t ext2fs_write_inode_full(ext2_filsys fs, ext2_ino_t ino,
1475 struct ext2_inode * inode,
1477 extern errcode_t ext2fs_write_inode(ext2_filsys fs, ext2_ino_t ino,
1478 struct ext2_inode * inode);
1479 extern errcode_t ext2fs_write_new_inode(ext2_filsys fs, ext2_ino_t ino,
1480 struct ext2_inode * inode);
1481 extern errcode_t ext2fs_get_blocks(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
1482 extern errcode_t ext2fs_check_directory(ext2_filsys fs, ext2_ino_t ino);
1485 extern io_manager inode_io_manager;
1486 extern errcode_t ext2fs_inode_io_intern(ext2_filsys fs, ext2_ino_t ino,
1488 extern errcode_t ext2fs_inode_io_intern2(ext2_filsys fs, ext2_ino_t ino,
1489 struct ext2_inode *inode,
1493 extern errcode_t ext2fs_check_if_mounted(const char *file, int *mount_flags);
1494 extern errcode_t ext2fs_check_mount_point(const char *device, int *mount_flags,
1495 char *mtpt, int mtlen);
1499 * NOTE: This function removes from an inode the blocks "start", "end", and
1500 * every block in between.
1502 extern errcode_t ext2fs_punch(ext2_filsys fs, ext2_ino_t ino,
1503 struct ext2_inode *inode,
1504 char *block_buf, blk64_t start,
1508 extern errcode_t ext2fs_lookup(ext2_filsys fs, ext2_ino_t dir, const char *name,
1509 int namelen, char *buf, ext2_ino_t *inode);
1510 extern errcode_t ext2fs_namei(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1511 const char *name, ext2_ino_t *inode);
1512 errcode_t ext2fs_namei_follow(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1513 const char *name, ext2_ino_t *inode);
1514 extern errcode_t ext2fs_follow_link(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1515 ext2_ino_t inode, ext2_ino_t *res_inode);
1518 int ext2fs_native_flag(void);
1521 extern errcode_t ext2fs_new_dir_block(ext2_filsys fs, ext2_ino_t dir_ino,
1522 ext2_ino_t parent_ino, char **block);
1523 extern errcode_t ext2fs_new_dir_inline_data(ext2_filsys fs, ext2_ino_t dir_ino,
1524 ext2_ino_t parent_ino, __u32 *iblock);
1527 extern errcode_t ext2fs_mkdir(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t inum,
1531 extern errcode_t ext2fs_zero_blocks(ext2_filsys fs, blk_t blk, int num,
1532 blk_t *ret_blk, int *ret_count);
1533 extern errcode_t ext2fs_zero_blocks2(ext2_filsys fs, blk64_t blk, int num,
1534 blk64_t *ret_blk, int *ret_count);
1535 extern errcode_t ext2fs_create_journal_superblock(ext2_filsys fs,
1536 __u32 num_blocks, int flags,
1538 extern errcode_t ext2fs_add_journal_device(ext2_filsys fs,
1539 ext2_filsys journal_dev);
1540 extern errcode_t ext2fs_add_journal_inode(ext2_filsys fs, blk_t num_blocks,
1542 extern errcode_t ext2fs_add_journal_inode2(ext2_filsys fs, blk_t num_blocks,
1543 blk64_t goal, int flags);
1544 extern int ext2fs_default_journal_size(__u64 num_blocks);
1545 extern int ext2fs_journal_sb_start(int blocksize);
1548 extern errcode_t ext2fs_open(const char *name, int flags, int superblock,
1549 unsigned int block_size, io_manager manager,
1550 ext2_filsys *ret_fs);
1551 extern errcode_t ext2fs_open2(const char *name, const char *io_options,
1552 int flags, int superblock,
1553 unsigned int block_size, io_manager manager,
1554 ext2_filsys *ret_fs);
1556 * The dgrp_t argument to these two functions is not actually a group number
1557 * but a block number offset within a group table! Convert with the formula
1558 * (group_number / groups_per_block).
1560 extern blk64_t ext2fs_descriptor_block_loc2(ext2_filsys fs,
1561 blk64_t group_block, dgrp_t i);
1562 extern blk_t ext2fs_descriptor_block_loc(ext2_filsys fs, blk_t group_block,
1564 errcode_t ext2fs_get_data_io(ext2_filsys fs, io_channel *old_io);
1565 errcode_t ext2fs_set_data_io(ext2_filsys fs, io_channel new_io);
1566 errcode_t ext2fs_rewrite_to_io(ext2_filsys fs, io_channel new_io);
1568 /* get_pathname.c */
1569 extern errcode_t ext2fs_get_pathname(ext2_filsys fs, ext2_ino_t dir, ext2_ino_t ino,
1573 errcode_t ext2fs_link(ext2_filsys fs, ext2_ino_t dir, const char *name,
1574 ext2_ino_t ino, int flags);
1575 errcode_t ext2fs_unlink(ext2_filsys fs, ext2_ino_t dir, const char *name,
1576 ext2_ino_t ino, int flags);
1579 errcode_t ext2fs_symlink(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t ino,
1580 const char *name, const char *target);
1583 errcode_t ext2fs_mmp_read(ext2_filsys fs, blk64_t mmp_blk, void *buf);
1584 errcode_t ext2fs_mmp_write(ext2_filsys fs, blk64_t mmp_blk, void *buf);
1585 errcode_t ext2fs_mmp_clear(ext2_filsys fs);
1586 errcode_t ext2fs_mmp_init(ext2_filsys fs);
1587 errcode_t ext2fs_mmp_start(ext2_filsys fs);
1588 errcode_t ext2fs_mmp_update(ext2_filsys fs);
1589 errcode_t ext2fs_mmp_update2(ext2_filsys fs, int immediately);
1590 errcode_t ext2fs_mmp_stop(ext2_filsys fs);
1591 unsigned ext2fs_mmp_new_seq(void);
1594 extern errcode_t ext2fs_read_bb_inode(ext2_filsys fs,
1595 ext2_badblocks_list *bb_list);
1597 /* read_bb_file.c */
1598 extern errcode_t ext2fs_read_bb_FILE2(ext2_filsys fs, FILE *f,
1599 ext2_badblocks_list *bb_list,
1601 void (*invalid)(ext2_filsys fs,
1605 extern errcode_t ext2fs_read_bb_FILE(ext2_filsys fs, FILE *f,
1606 ext2_badblocks_list *bb_list,
1607 void (*invalid)(ext2_filsys fs,
1611 extern errcode_t ext2fs_create_resize_inode(ext2_filsys fs);
1614 #define EXT2FS_SHA256_LENGTH 32
1616 extern void ext2fs_sha256(const unsigned char *in, unsigned long in_size,
1617 unsigned char out[EXT2FS_SHA256_LENGTH]);
1621 #define EXT2FS_SHA512_LENGTH 64
1622 extern void ext2fs_sha512(const unsigned char *in, unsigned long in_size,
1623 unsigned char out[EXT2FS_SHA512_LENGTH]);
1626 extern errcode_t ext2fs_dirent_swab_in2(ext2_filsys fs, char *buf, size_t size,
1628 extern errcode_t ext2fs_dirent_swab_in(ext2_filsys fs, char *buf, int flags);
1629 extern errcode_t ext2fs_dirent_swab_out2(ext2_filsys fs, char *buf, size_t size,
1631 extern errcode_t ext2fs_dirent_swab_out(ext2_filsys fs, char *buf, int flags);
1632 extern void ext2fs_swap_ext_attr(char *to, char *from, int bufsize,
1634 extern void ext2fs_swap_ext_attr_header(struct ext2_ext_attr_header *to_header,
1635 struct ext2_ext_attr_header *from_hdr);
1636 extern void ext2fs_swap_ext_attr_entry(struct ext2_ext_attr_entry *to_entry,
1637 struct ext2_ext_attr_entry *from_entry);
1638 extern void ext2fs_swap_super(struct ext2_super_block * super);
1639 extern void ext2fs_swap_group_desc(struct ext2_group_desc *gdp);
1640 extern void ext2fs_swap_group_desc2(ext2_filsys, struct ext2_group_desc *gdp);
1641 extern void ext2fs_swap_inode_full(ext2_filsys fs, struct ext2_inode_large *t,
1642 struct ext2_inode_large *f, int hostorder,
1644 extern void ext2fs_swap_inode(ext2_filsys fs,struct ext2_inode *t,
1645 struct ext2_inode *f, int hostorder);
1646 extern void ext2fs_swap_mmp(struct mmp_struct *mmp);
1649 extern int ext2fs_open_file(const char *pathname, int flags, mode_t mode);
1650 extern int ext2fs_stat(const char *path, ext2fs_struct_stat *buf);
1651 extern int ext2fs_fstat(int fd, ext2fs_struct_stat *buf);
1654 extern int ext2fs_inode_has_valid_blocks(struct ext2_inode *inode);
1655 extern int ext2fs_inode_has_valid_blocks2(ext2_filsys fs,
1656 struct ext2_inode *inode);
1659 extern int ext2fs_parse_version_string(const char *ver_string);
1660 extern int ext2fs_get_library_version(const char **ver_string,
1661 const char **date_string);
1663 /* write_bb_file.c */
1664 extern errcode_t ext2fs_write_bb_FILE(ext2_badblocks_list bb_list,
1669 /* inline functions */
1670 #ifdef NO_INLINE_FUNCS
1671 extern errcode_t ext2fs_get_mem(unsigned long size, void *ptr);
1672 extern errcode_t ext2fs_get_memzero(unsigned long size, void *ptr);
1673 extern errcode_t ext2fs_get_array(unsigned long count,
1674 unsigned long size, void *ptr);
1675 extern errcode_t ext2fs_get_arrayzero(unsigned long count,
1676 unsigned long size, void *ptr);
1677 extern errcode_t ext2fs_free_mem(void *ptr);
1678 extern errcode_t ext2fs_resize_mem(unsigned long old_size,
1679 unsigned long size, void *ptr);
1680 extern void ext2fs_mark_super_dirty(ext2_filsys fs);
1681 extern void ext2fs_mark_changed(ext2_filsys fs);
1682 extern int ext2fs_test_changed(ext2_filsys fs);
1683 extern void ext2fs_mark_valid(ext2_filsys fs);
1684 extern void ext2fs_unmark_valid(ext2_filsys fs);
1685 extern int ext2fs_test_valid(ext2_filsys fs);
1686 extern void ext2fs_mark_ib_dirty(ext2_filsys fs);
1687 extern void ext2fs_mark_bb_dirty(ext2_filsys fs);
1688 extern int ext2fs_test_ib_dirty(ext2_filsys fs);
1689 extern int ext2fs_test_bb_dirty(ext2_filsys fs);
1690 extern dgrp_t ext2fs_group_of_blk(ext2_filsys fs, blk_t blk);
1691 extern dgrp_t ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino);
1692 extern blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group);
1693 extern blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group);
1694 extern blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
1695 struct ext2_inode *inode);
1696 extern unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b);
1697 extern __u64 ext2fs_div64_ceil(__u64 a, __u64 b);
1698 extern int ext2fs_dirent_name_len(const struct ext2_dir_entry *entry);
1699 extern void ext2fs_dirent_set_name_len(struct ext2_dir_entry *entry, int len);
1700 extern int ext2fs_dirent_file_type(const struct ext2_dir_entry *entry);
1701 extern void ext2fs_dirent_set_file_type(struct ext2_dir_entry *entry, int type);
1702 extern struct ext2_inode *ext2fs_inode(struct ext2_inode_large * large_inode);
1703 extern const struct ext2_inode *ext2fs_const_inode(const struct ext2_inode_large * large_inode);
1708 * The actual inlined functions definitions themselves...
1710 * If NO_INLINE_FUNCS is defined, then we won't try to do inline
1713 #if (defined(INCLUDE_INLINE_FUNCS) || !defined(NO_INLINE_FUNCS))
1714 #ifdef INCLUDE_INLINE_FUNCS
1715 #define _INLINE_ extern
1717 #if (__STDC_VERSION__ >= 199901L)
1718 #define _INLINE_ inline
1721 #define _INLINE_ extern __inline__
1722 #else /* For Watcom C */
1723 #define _INLINE_ extern inline
1724 #endif /* __GNUC__ */
1725 #endif /* __STDC_VERSION__ >= 199901L */
1728 #ifndef EXT2_CUSTOM_MEMORY_ROUTINES
1731 * Allocate memory. The 'ptr' arg must point to a pointer.
1733 _INLINE_ errcode_t ext2fs_get_mem(unsigned long size, void *ptr)
1739 return EXT2_ET_NO_MEMORY;
1740 memcpy(ptr, &pp, sizeof (pp));
1744 _INLINE_ errcode_t ext2fs_get_memzero(unsigned long size, void *ptr)
1750 return EXT2_ET_NO_MEMORY;
1751 memset(pp, 0, size);
1752 memcpy(ptr, &pp, sizeof(pp));
1756 _INLINE_ errcode_t ext2fs_get_array(unsigned long count, unsigned long size, void *ptr)
1758 if (count && (~0UL)/count < size)
1759 return EXT2_ET_NO_MEMORY;
1760 return ext2fs_get_mem(count*size, ptr);
1763 _INLINE_ errcode_t ext2fs_get_arrayzero(unsigned long count,
1764 unsigned long size, void *ptr)
1768 if (count && (~0UL)/count < size)
1769 return EXT2_ET_NO_MEMORY;
1770 pp = calloc(count, size);
1772 return EXT2_ET_NO_MEMORY;
1773 memcpy(ptr, &pp, sizeof(pp));
1778 * Free memory. The 'ptr' arg must point to a pointer.
1780 _INLINE_ errcode_t ext2fs_free_mem(void *ptr)
1784 memcpy(&p, ptr, sizeof(p));
1787 memcpy(ptr, &p, sizeof(p));
1792 * Resize memory. The 'ptr' arg must point to a pointer.
1794 _INLINE_ errcode_t ext2fs_resize_mem(unsigned long EXT2FS_ATTR((unused)) old_size,
1795 unsigned long size, void *ptr)
1799 /* Use "memcpy" for pointer assignments here to avoid problems
1800 * with C99 strict type aliasing rules. */
1801 memcpy(&p, ptr, sizeof(p));
1802 p = realloc(p, size);
1804 return EXT2_ET_NO_MEMORY;
1805 memcpy(ptr, &p, sizeof(p));
1808 #endif /* Custom memory routines */
1811 * Mark a filesystem superblock as dirty
1813 _INLINE_ void ext2fs_mark_super_dirty(ext2_filsys fs)
1815 fs->flags |= EXT2_FLAG_DIRTY | EXT2_FLAG_CHANGED;
1819 * Mark a filesystem as changed
1821 _INLINE_ void ext2fs_mark_changed(ext2_filsys fs)
1823 fs->flags |= EXT2_FLAG_CHANGED;
1827 * Check to see if a filesystem has changed
1829 _INLINE_ int ext2fs_test_changed(ext2_filsys fs)
1831 return (fs->flags & EXT2_FLAG_CHANGED);
1835 * Mark a filesystem as valid
1837 _INLINE_ void ext2fs_mark_valid(ext2_filsys fs)
1839 fs->flags |= EXT2_FLAG_VALID;
1843 * Mark a filesystem as NOT valid
1845 _INLINE_ void ext2fs_unmark_valid(ext2_filsys fs)
1847 fs->flags &= ~EXT2_FLAG_VALID;
1851 * Check to see if a filesystem is valid
1853 _INLINE_ int ext2fs_test_valid(ext2_filsys fs)
1855 return (fs->flags & EXT2_FLAG_VALID);
1859 * Mark the inode bitmap as dirty
1861 _INLINE_ void ext2fs_mark_ib_dirty(ext2_filsys fs)
1863 fs->flags |= EXT2_FLAG_IB_DIRTY | EXT2_FLAG_CHANGED;
1867 * Mark the block bitmap as dirty
1869 _INLINE_ void ext2fs_mark_bb_dirty(ext2_filsys fs)
1871 fs->flags |= EXT2_FLAG_BB_DIRTY | EXT2_FLAG_CHANGED;
1875 * Check to see if a filesystem's inode bitmap is dirty
1877 _INLINE_ int ext2fs_test_ib_dirty(ext2_filsys fs)
1879 return (fs->flags & EXT2_FLAG_IB_DIRTY);
1883 * Check to see if a filesystem's block bitmap is dirty
1885 _INLINE_ int ext2fs_test_bb_dirty(ext2_filsys fs)
1887 return (fs->flags & EXT2_FLAG_BB_DIRTY);
1891 * Return the group # of a block
1893 _INLINE_ dgrp_t ext2fs_group_of_blk(ext2_filsys fs, blk_t blk)
1895 return ext2fs_group_of_blk2(fs, blk);
1898 * Return the group # of an inode number
1900 _INLINE_ dgrp_t ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino)
1902 return (ino - 1) / fs->super->s_inodes_per_group;
1906 * Return the first block (inclusive) in a group
1908 _INLINE_ blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group)
1910 return (blk_t) ext2fs_group_first_block2(fs, group);
1914 * Return the last block (inclusive) in a group
1916 _INLINE_ blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group)
1918 return (blk_t) ext2fs_group_last_block2(fs, group);
1921 _INLINE_ blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
1922 struct ext2_inode *inode)
1924 return (blk_t) ext2fs_inode_data_blocks2(fs, inode);
1928 * This is an efficient, overflow safe way of calculating ceil((1.0 * a) / b)
1930 _INLINE_ unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b)
1934 return ((a - 1) / b) + 1;
1937 _INLINE_ __u64 ext2fs_div64_ceil(__u64 a, __u64 b)
1941 return ((a - 1) / b) + 1;
1944 _INLINE_ int ext2fs_dirent_name_len(const struct ext2_dir_entry *entry)
1946 return entry->name_len & 0xff;
1949 _INLINE_ void ext2fs_dirent_set_name_len(struct ext2_dir_entry *entry, int len)
1951 entry->name_len = (entry->name_len & 0xff00) | (len & 0xff);
1954 _INLINE_ int ext2fs_dirent_file_type(const struct ext2_dir_entry *entry)
1956 return entry->name_len >> 8;
1959 _INLINE_ void ext2fs_dirent_set_file_type(struct ext2_dir_entry *entry, int type)
1961 entry->name_len = (entry->name_len & 0xff) | (type << 8);
1964 _INLINE_ struct ext2_inode *ext2fs_inode(struct ext2_inode_large * large_inode)
1966 /* It is always safe to convert large inode to a small inode */
1967 return (struct ext2_inode *) large_inode;
1970 _INLINE_ const struct ext2_inode *
1971 ext2fs_const_inode(const struct ext2_inode_large * large_inode)
1973 /* It is always safe to convert large inode to a small inode */
1974 return (const struct ext2_inode *) large_inode;
1984 #endif /* _EXT2FS_EXT2FS_H */