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>
65 #if EXT2_FLAT_INCLUDES
68 #include "ext3_extents.h"
70 #include <ext2fs/ext2_types.h>
71 #include <ext2fs/ext2_fs.h>
72 #include <ext2fs/ext3_extents.h>
73 #endif /* EXT2_FLAT_INCLUDES */
75 typedef __u32 __bitwise ext2_ino_t;
76 typedef __u32 __bitwise blk_t;
77 typedef __u64 __bitwise blk64_t;
78 typedef __u32 __bitwise dgrp_t;
79 typedef __u32 __bitwise ext2_off_t;
80 typedef __u64 __bitwise ext2_off64_t;
81 typedef __s64 __bitwise e2_blkcnt_t;
82 typedef __u32 __bitwise ext2_dirhash_t;
84 #if EXT2_FLAT_INCLUDES
88 #include "ext2_ext_attr.h"
90 #include <et/com_err.h>
91 #include <ext2fs/ext2_io.h>
92 #include <ext2fs/ext2_err.h>
93 #include <ext2fs/ext2_ext_attr.h>
97 * Portability help for Microsoft Visual C++
100 #define EXT2_QSORT_TYPE int __cdecl
102 #define EXT2_QSORT_TYPE int
105 typedef struct struct_ext2_filsys *ext2_filsys;
107 #define EXT2FS_MARK_ERROR 0
108 #define EXT2FS_UNMARK_ERROR 1
109 #define EXT2FS_TEST_ERROR 2
111 typedef struct ext2fs_struct_generic_bitmap *ext2fs_generic_bitmap;
112 typedef struct ext2fs_struct_generic_bitmap *ext2fs_inode_bitmap;
113 typedef struct ext2fs_struct_generic_bitmap *ext2fs_block_bitmap;
115 #define EXT2_FIRST_INODE(s) EXT2_FIRST_INO(s)
119 * Badblocks list definitions
122 typedef struct ext2_struct_u32_list *ext2_badblocks_list;
123 typedef struct ext2_struct_u32_iterate *ext2_badblocks_iterate;
125 typedef struct ext2_struct_u32_list *ext2_u32_list;
126 typedef struct ext2_struct_u32_iterate *ext2_u32_iterate;
129 typedef struct ext2_struct_u32_list *badblocks_list;
130 typedef struct ext2_struct_u32_iterate *badblocks_iterate;
132 #define BADBLOCKS_FLAG_DIRTY 1
135 * ext2_dblist structure and abstractions (see dblist.c)
137 struct ext2_db_entry2 {
140 e2_blkcnt_t blockcnt;
143 /* Ye Olde 32-bit version */
144 struct ext2_db_entry {
150 typedef struct ext2_struct_dblist *ext2_dblist;
152 #define DBLIST_ABORT 1
155 * ext2_fileio definitions
158 #define EXT2_FILE_WRITE 0x0001
159 #define EXT2_FILE_CREATE 0x0002
161 #define EXT2_FILE_MASK 0x00FF
163 #define EXT2_FILE_BUF_DIRTY 0x4000
164 #define EXT2_FILE_BUF_VALID 0x2000
166 typedef struct ext2_file *ext2_file_t;
168 #define EXT2_SEEK_SET 0
169 #define EXT2_SEEK_CUR 1
170 #define EXT2_SEEK_END 2
173 * Flags for the ext2_filsys structure and for ext2fs_open()
175 #define EXT2_FLAG_RW 0x01
176 #define EXT2_FLAG_CHANGED 0x02
177 #define EXT2_FLAG_DIRTY 0x04
178 #define EXT2_FLAG_VALID 0x08
179 #define EXT2_FLAG_IB_DIRTY 0x10
180 #define EXT2_FLAG_BB_DIRTY 0x20
181 #define EXT2_FLAG_SWAP_BYTES 0x40
182 #define EXT2_FLAG_SWAP_BYTES_READ 0x80
183 #define EXT2_FLAG_SWAP_BYTES_WRITE 0x100
184 #define EXT2_FLAG_MASTER_SB_ONLY 0x200
185 #define EXT2_FLAG_FORCE 0x400
186 #define EXT2_FLAG_SUPER_ONLY 0x800
187 #define EXT2_FLAG_JOURNAL_DEV_OK 0x1000
188 #define EXT2_FLAG_IMAGE_FILE 0x2000
189 #define EXT2_FLAG_EXCLUSIVE 0x4000
190 #define EXT2_FLAG_SOFTSUPP_FEATURES 0x8000
191 #define EXT2_FLAG_NOFREE_ON_ERROR 0x10000
192 #define EXT2_FLAG_64BITS 0x20000
193 #define EXT2_FLAG_PRINT_PROGRESS 0x40000
194 #define EXT2_FLAG_DIRECT_IO 0x80000
195 #define EXT2_FLAG_SKIP_MMP 0x100000
196 #define EXT2_FLAG_IGNORE_CSUM_ERRORS 0x200000
199 * Special flag in the ext2 inode i_flag field that means that this is
200 * a new inode. (So that ext2_write_inode() can clear extra fields.)
202 #define EXT2_NEW_INODE_FL 0x80000000
205 * Flags for mkjournal
207 #define EXT2_MKJOURNAL_V1_SUPER 0x0000001 /* create V1 superblock (deprecated) */
208 #define EXT2_MKJOURNAL_LAZYINIT 0x0000002 /* don't zero journal inode before use*/
209 #define EXT2_MKJOURNAL_NO_MNT_CHECK 0x0000004 /* don't check mount status */
211 struct opaque_ext2_group_desc;
213 struct struct_ext2_filsys {
218 struct ext2_super_block * super;
219 unsigned int blocksize;
221 dgrp_t group_desc_count;
222 unsigned long desc_blocks;
223 struct opaque_ext2_group_desc * group_desc;
224 unsigned int inode_blocks_per_group;
225 ext2fs_inode_bitmap inode_map;
226 ext2fs_block_bitmap block_map;
227 /* XXX FIXME-64: not 64-bit safe, but not used? */
228 errcode_t (*get_blocks)(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
229 errcode_t (*check_directory)(ext2_filsys fs, ext2_ino_t ino);
230 errcode_t (*write_bitmaps)(ext2_filsys fs);
231 errcode_t (*read_inode)(ext2_filsys fs, ext2_ino_t ino,
232 struct ext2_inode *inode);
233 errcode_t (*write_inode)(ext2_filsys fs, ext2_ino_t ino,
234 struct ext2_inode *inode);
235 ext2_badblocks_list badblocks;
237 __u32 stride; /* for mke2fs */
238 struct ext2_super_block * orig_super;
239 struct ext2_image_hdr * image_header;
242 int cluster_ratio_bits;
243 __u16 default_bitmap_type;
246 * Reserved for future expansion
251 * Reserved for the use of the calling application.
258 struct ext2_inode_cache *icache;
262 * More callback functions
264 errcode_t (*get_alloc_block)(ext2_filsys fs, blk64_t goal,
266 void (*block_alloc_stats)(ext2_filsys fs, blk64_t blk, int inuse);
269 * Buffers for Multiple mount protection(MMP) block.
276 * Time at which e2fsck last updated the MMP block.
278 long mmp_last_written;
280 /* progress operation functions */
281 struct ext2fs_progress_ops *progress_ops;
283 /* Precomputed FS UUID checksum for seeding other checksums */
286 io_channel journal_io;
289 /* New block range allocation hooks */
290 errcode_t (*new_range)(ext2_filsys fs, int flags, blk64_t goal,
291 blk64_t len, blk64_t *pblk, blk64_t *plen);
292 void (*block_alloc_stats_range)(ext2_filsys fs, blk64_t blk, blk_t num,
296 #if EXT2_FLAT_INCLUDES
297 #include "e2_bitops.h"
299 #include <ext2fs/bitops.h>
303 * 64-bit bitmap backend types
305 #define EXT2FS_BMAP64_BITARRAY 1
306 #define EXT2FS_BMAP64_RBTREE 2
307 #define EXT2FS_BMAP64_AUTODIR 3
310 * Return flags for the block iterator functions
312 #define BLOCK_CHANGED 1
313 #define BLOCK_ABORT 2
314 #define BLOCK_ERROR 4
315 #define BLOCK_INLINE_DATA_CHANGED 8
318 * Block interate flags
320 * BLOCK_FLAG_APPEND, or BLOCK_FLAG_HOLE, indicates that the interator
321 * function should be called on blocks where the block number is zero.
322 * This is used by ext2fs_expand_dir() to be able to add a new block
323 * to an inode. It can also be used for programs that want to be able
324 * to deal with files that contain "holes".
326 * BLOCK_FLAG_DEPTH_TRAVERSE indicates that the iterator function for
327 * the indirect, doubly indirect, etc. blocks should be called after
328 * all of the blocks containined in the indirect blocks are processed.
329 * This is useful if you are going to be deallocating blocks from an
332 * BLOCK_FLAG_DATA_ONLY indicates that the iterator function should be
333 * called for data blocks only.
335 * BLOCK_FLAG_READ_ONLY is a promise by the caller that it will not
336 * modify returned block number.
338 * BLOCK_FLAG_NO_LARGE is for internal use only. It informs
339 * ext2fs_block_iterate2 that large files won't be accepted.
341 #define BLOCK_FLAG_APPEND 1
342 #define BLOCK_FLAG_HOLE 1
343 #define BLOCK_FLAG_DEPTH_TRAVERSE 2
344 #define BLOCK_FLAG_DATA_ONLY 4
345 #define BLOCK_FLAG_READ_ONLY 8
347 #define BLOCK_FLAG_NO_LARGE 0x1000
350 * Magic "block count" return values for the block iterator function.
352 #define BLOCK_COUNT_IND (-1)
353 #define BLOCK_COUNT_DIND (-2)
354 #define BLOCK_COUNT_TIND (-3)
355 #define BLOCK_COUNT_TRANSLATOR (-4)
359 * Flags for ext2fs_move_blocks
361 #define EXT2_BMOVE_GET_DBLIST 0x0001
362 #define EXT2_BMOVE_DEBUG 0x0002
366 * Generic (non-filesystem layout specific) extents structure
369 #define EXT2_EXTENT_FLAGS_LEAF 0x0001
370 #define EXT2_EXTENT_FLAGS_UNINIT 0x0002
371 #define EXT2_EXTENT_FLAGS_SECOND_VISIT 0x0004
373 struct ext2fs_extent {
374 blk64_t e_pblk; /* first physical block */
375 blk64_t e_lblk; /* first logical block extent covers */
376 __u32 e_len; /* number of blocks covered by extent */
377 __u32 e_flags; /* extent flags */
380 typedef struct ext2_extent_handle *ext2_extent_handle_t;
381 typedef struct ext2_extent_path *ext2_extent_path_t;
384 * Flags used by ext2fs_extent_get()
386 #define EXT2_EXTENT_CURRENT 0x0000
387 #define EXT2_EXTENT_MOVE_MASK 0x000F
388 #define EXT2_EXTENT_ROOT 0x0001
389 #define EXT2_EXTENT_LAST_LEAF 0x0002
390 #define EXT2_EXTENT_FIRST_SIB 0x0003
391 #define EXT2_EXTENT_LAST_SIB 0x0004
392 #define EXT2_EXTENT_NEXT_SIB 0x0005
393 #define EXT2_EXTENT_PREV_SIB 0x0006
394 #define EXT2_EXTENT_NEXT_LEAF 0x0007
395 #define EXT2_EXTENT_PREV_LEAF 0x0008
396 #define EXT2_EXTENT_NEXT 0x0009
397 #define EXT2_EXTENT_PREV 0x000A
398 #define EXT2_EXTENT_UP 0x000B
399 #define EXT2_EXTENT_DOWN 0x000C
400 #define EXT2_EXTENT_DOWN_AND_LAST 0x000D
403 * Flags used by ext2fs_extent_insert()
405 #define EXT2_EXTENT_INSERT_AFTER 0x0001 /* insert after handle loc'n */
406 #define EXT2_EXTENT_INSERT_NOSPLIT 0x0002 /* insert may not cause split */
409 * Flags used by ext2fs_extent_delete()
411 #define EXT2_EXTENT_DELETE_KEEP_EMPTY 0x001 /* keep node if last extnt gone */
414 * Flags used by ext2fs_extent_set_bmap()
416 #define EXT2_EXTENT_SET_BMAP_UNINIT 0x0001
419 * Data structure returned by ext2fs_extent_get_info()
421 struct ext2_extent_info {
431 __u32 max_uninit_len;
435 * Flags for directory block reading and writing functions
437 #define EXT2_DIRBLOCK_V2_STRUCT 0x0001
440 * Return flags for the directory iterator functions
442 #define DIRENT_CHANGED 1
443 #define DIRENT_ABORT 2
444 #define DIRENT_ERROR 3
447 * Directory iterator flags
450 #define DIRENT_FLAG_INCLUDE_EMPTY 1
451 #define DIRENT_FLAG_INCLUDE_REMOVED 2
452 #define DIRENT_FLAG_INCLUDE_CSUM 4
453 #define DIRENT_FLAG_INCLUDE_INLINE_DATA 8
455 #define DIRENT_DOT_FILE 1
456 #define DIRENT_DOT_DOT_FILE 2
457 #define DIRENT_OTHER_FILE 3
458 #define DIRENT_DELETED_FILE 4
459 #define DIRENT_CHECKSUM 5
462 * Inode scan definitions
464 typedef struct ext2_struct_inode_scan *ext2_inode_scan;
469 #define EXT2_SF_CHK_BADBLOCKS 0x0001
470 #define EXT2_SF_BAD_INODE_BLK 0x0002
471 #define EXT2_SF_BAD_EXTRA_BYTES 0x0004
472 #define EXT2_SF_SKIP_MISSING_ITABLE 0x0008
473 #define EXT2_SF_DO_LAZY 0x0010
474 #define EXT2_SF_WARN_GARBAGE_INODES 0x0020
477 * ext2fs_check_if_mounted flags
479 #define EXT2_MF_MOUNTED 1
480 #define EXT2_MF_ISROOT 2
481 #define EXT2_MF_READONLY 4
482 #define EXT2_MF_SWAP 8
483 #define EXT2_MF_BUSY 16
486 * Ext2/linux mode flags. We define them here so that we don't need
487 * to depend on the OS's sys/stat.h, since we may be compiling on a
490 #define LINUX_S_IFMT 00170000
491 #define LINUX_S_IFSOCK 0140000
492 #define LINUX_S_IFLNK 0120000
493 #define LINUX_S_IFREG 0100000
494 #define LINUX_S_IFBLK 0060000
495 #define LINUX_S_IFDIR 0040000
496 #define LINUX_S_IFCHR 0020000
497 #define LINUX_S_IFIFO 0010000
498 #define LINUX_S_ISUID 0004000
499 #define LINUX_S_ISGID 0002000
500 #define LINUX_S_ISVTX 0001000
502 #define LINUX_S_IRWXU 00700
503 #define LINUX_S_IRUSR 00400
504 #define LINUX_S_IWUSR 00200
505 #define LINUX_S_IXUSR 00100
507 #define LINUX_S_IRWXG 00070
508 #define LINUX_S_IRGRP 00040
509 #define LINUX_S_IWGRP 00020
510 #define LINUX_S_IXGRP 00010
512 #define LINUX_S_IRWXO 00007
513 #define LINUX_S_IROTH 00004
514 #define LINUX_S_IWOTH 00002
515 #define LINUX_S_IXOTH 00001
517 #define LINUX_S_ISLNK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFLNK)
518 #define LINUX_S_ISREG(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFREG)
519 #define LINUX_S_ISDIR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFDIR)
520 #define LINUX_S_ISCHR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFCHR)
521 #define LINUX_S_ISBLK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFBLK)
522 #define LINUX_S_ISFIFO(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFIFO)
523 #define LINUX_S_ISSOCK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFSOCK)
526 * ext2 size of an inode
528 #define EXT2_I_SIZE(i) ((i)->i_size | ((__u64) (i)->i_size_high << 32))
531 * ext2_icount_t abstraction
533 #define EXT2_ICOUNT_OPT_INCREMENT 0x01
535 typedef struct ext2_icount *ext2_icount_t;
538 * Flags for ext2fs_bmap
540 #define BMAP_ALLOC 0x0001
541 #define BMAP_SET 0x0002
542 #define BMAP_UNINIT 0x0004
543 #define BMAP_ZERO 0x0008
546 * Returned flags from ext2fs_bmap
548 #define BMAP_RET_UNINIT 0x0001
551 * Flags for imager.c functions
553 #define IMAGER_FLAG_INODEMAP 1
554 #define IMAGER_FLAG_SPARSEWRITE 2
557 * For checking structure magic numbers...
560 #define EXT2_CHECK_MAGIC(struct, code) \
561 if ((struct)->magic != (code)) return (code)
564 * Features supported by this version of the library
566 #define EXT2_LIB_FEATURE_COMPAT_SUPP (EXT2_FEATURE_COMPAT_DIR_PREALLOC|\
567 EXT2_FEATURE_COMPAT_IMAGIC_INODES|\
568 EXT3_FEATURE_COMPAT_HAS_JOURNAL|\
569 EXT2_FEATURE_COMPAT_RESIZE_INODE|\
570 EXT2_FEATURE_COMPAT_DIR_INDEX|\
571 EXT2_FEATURE_COMPAT_EXT_ATTR|\
572 EXT4_FEATURE_COMPAT_SPARSE_SUPER2)
575 #define EXT4_LIB_INCOMPAT_MMP EXT4_FEATURE_INCOMPAT_MMP
577 #define EXT4_LIB_INCOMPAT_MMP (0)
580 #define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\
581 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\
582 EXT2_FEATURE_INCOMPAT_META_BG|\
583 EXT3_FEATURE_INCOMPAT_RECOVER|\
584 EXT3_FEATURE_INCOMPAT_EXTENTS|\
585 EXT4_FEATURE_INCOMPAT_FLEX_BG|\
586 EXT4_LIB_INCOMPAT_MMP|\
587 EXT4_FEATURE_INCOMPAT_64BIT|\
588 EXT4_FEATURE_INCOMPAT_INLINE_DATA|\
589 EXT4_FEATURE_INCOMPAT_ENCRYPT|\
590 EXT4_FEATURE_INCOMPAT_CSUM_SEED)
592 #define EXT2_LIB_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|\
593 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|\
594 EXT2_FEATURE_RO_COMPAT_LARGE_FILE|\
595 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|\
596 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|\
597 EXT4_FEATURE_RO_COMPAT_GDT_CSUM|\
598 EXT4_FEATURE_RO_COMPAT_BIGALLOC|\
599 EXT4_FEATURE_RO_COMPAT_QUOTA|\
600 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM|\
601 EXT4_FEATURE_RO_COMPAT_READONLY |\
602 EXT4_FEATURE_RO_COMPAT_PROJECT)
605 * These features are only allowed if EXT2_FLAG_SOFTSUPP_FEATURES is passed
608 #define EXT2_LIB_SOFTSUPP_INCOMPAT (0)
609 #define EXT2_LIB_SOFTSUPP_RO_COMPAT (EXT4_FEATURE_RO_COMPAT_REPLICA)
612 /* Translate a block number to a cluster number */
613 #define EXT2FS_CLUSTER_RATIO(fs) (1 << (fs)->cluster_ratio_bits)
614 #define EXT2FS_CLUSTER_MASK(fs) (EXT2FS_CLUSTER_RATIO(fs) - 1)
615 #define EXT2FS_B2C(fs, blk) ((blk) >> (fs)->cluster_ratio_bits)
616 /* Translate a cluster number to a block number */
617 #define EXT2FS_C2B(fs, cluster) ((cluster) << (fs)->cluster_ratio_bits)
618 /* Translate # of blks to # of clusters */
619 #define EXT2FS_NUM_B2C(fs, blks) (((blks) + EXT2FS_CLUSTER_MASK(fs)) >> \
620 (fs)->cluster_ratio_bits)
622 #if defined(HAVE_FSTAT64) && !defined(__OSX_AVAILABLE_BUT_DEPRECATED)
623 typedef struct stat64 ext2fs_struct_stat;
625 typedef struct stat ext2fs_struct_stat;
629 * For ext2fs_close2() and ext2fs_flush2(), this flag allows you to
630 * avoid the fsync call.
632 #define EXT2_FLAG_FLUSH_NO_SYNC 1
635 * Modify and iterate extended attributes
637 struct ext2_xattr_handle;
638 #define XATTR_ABORT 1
639 #define XATTR_CHANGED 2
642 * function prototypes
644 static inline int ext2fs_has_group_desc_csum(ext2_filsys fs)
646 return ext2fs_has_feature_metadata_csum(fs->super) ||
647 ext2fs_has_feature_gdt_csum(fs->super);
650 /* The LARGE_FILE feature should be set if we have stored files 2GB+ in size */
651 static inline int ext2fs_needs_large_file_feature(unsigned long long file_size)
653 return file_size >= 0x80000000ULL;
657 extern void ext2fs_clear_block_uninit(ext2_filsys fs, dgrp_t group);
658 extern errcode_t ext2fs_new_inode(ext2_filsys fs, ext2_ino_t dir, int mode,
659 ext2fs_inode_bitmap map, ext2_ino_t *ret);
660 extern errcode_t ext2fs_new_block(ext2_filsys fs, blk_t goal,
661 ext2fs_block_bitmap map, blk_t *ret);
662 extern errcode_t ext2fs_new_block2(ext2_filsys fs, blk64_t goal,
663 ext2fs_block_bitmap map, blk64_t *ret);
664 extern errcode_t ext2fs_get_free_blocks(ext2_filsys fs, blk_t start,
665 blk_t finish, int num,
666 ext2fs_block_bitmap map,
668 extern errcode_t ext2fs_get_free_blocks2(ext2_filsys fs, blk64_t start,
669 blk64_t finish, int num,
670 ext2fs_block_bitmap map,
672 extern errcode_t ext2fs_alloc_block(ext2_filsys fs, blk_t goal,
673 char *block_buf, blk_t *ret);
674 extern errcode_t ext2fs_alloc_block2(ext2_filsys fs, blk64_t goal,
675 char *block_buf, blk64_t *ret);
676 extern void ext2fs_set_alloc_block_callback(ext2_filsys fs,
677 errcode_t (*func)(ext2_filsys fs,
680 errcode_t (**old)(ext2_filsys fs,
683 blk64_t ext2fs_find_inode_goal(ext2_filsys fs, ext2_ino_t ino,
684 struct ext2_inode *inode, blk64_t lblk);
685 extern void ext2fs_set_new_range_callback(ext2_filsys fs,
686 errcode_t (*func)(ext2_filsys fs, int flags, blk64_t goal,
687 blk64_t len, blk64_t *pblk, blk64_t *plen),
688 errcode_t (**old)(ext2_filsys fs, int flags, blk64_t goal,
689 blk64_t len, blk64_t *pblk, blk64_t *plen));
690 extern void ext2fs_set_block_alloc_stats_range_callback(ext2_filsys fs,
691 void (*func)(ext2_filsys fs, blk64_t blk,
692 blk_t num, int inuse),
693 void (**old)(ext2_filsys fs, blk64_t blk,
694 blk_t num, int inuse));
695 #define EXT2_NEWRANGE_FIXED_GOAL (0x1)
696 #define EXT2_NEWRANGE_MIN_LENGTH (0x2)
697 #define EXT2_NEWRANGE_ALL_FLAGS (0x3)
698 errcode_t ext2fs_new_range(ext2_filsys fs, int flags, blk64_t goal,
699 blk64_t len, ext2fs_block_bitmap map, blk64_t *pblk,
701 #define EXT2_ALLOCRANGE_FIXED_GOAL (0x1)
702 #define EXT2_ALLOCRANGE_ZERO_BLOCKS (0x2)
703 #define EXT2_ALLOCRANGE_ALL_FLAGS (0x3)
704 errcode_t ext2fs_alloc_range(ext2_filsys fs, int flags, blk64_t goal,
705 blk_t len, blk64_t *ret);
708 extern int ext2fs_reserve_super_and_bgd(ext2_filsys fs,
710 ext2fs_block_bitmap bmap);
711 extern void ext2fs_set_block_alloc_stats_callback(ext2_filsys fs,
712 void (*func)(ext2_filsys fs,
715 void (**old)(ext2_filsys fs,
720 void ext2fs_inode_alloc_stats(ext2_filsys fs, ext2_ino_t ino, int inuse);
721 void ext2fs_inode_alloc_stats2(ext2_filsys fs, ext2_ino_t ino,
722 int inuse, int isdir);
723 void ext2fs_block_alloc_stats(ext2_filsys fs, blk_t blk, int inuse);
724 void ext2fs_block_alloc_stats2(ext2_filsys fs, blk64_t blk, int inuse);
725 void ext2fs_block_alloc_stats_range(ext2_filsys fs, blk64_t blk,
726 blk_t num, int inuse);
729 extern errcode_t ext2fs_allocate_tables(ext2_filsys fs);
730 extern errcode_t ext2fs_allocate_group_table(ext2_filsys fs, dgrp_t group,
731 ext2fs_block_bitmap bmap);
734 extern errcode_t ext2fs_u32_list_create(ext2_u32_list *ret, int size);
735 extern errcode_t ext2fs_u32_list_add(ext2_u32_list bb, __u32 blk);
736 extern int ext2fs_u32_list_find(ext2_u32_list bb, __u32 blk);
737 extern int ext2fs_u32_list_test(ext2_u32_list bb, blk_t blk);
738 extern errcode_t ext2fs_u32_list_iterate_begin(ext2_u32_list bb,
739 ext2_u32_iterate *ret);
740 extern int ext2fs_u32_list_iterate(ext2_u32_iterate iter, blk_t *blk);
741 extern void ext2fs_u32_list_iterate_end(ext2_u32_iterate iter);
742 extern errcode_t ext2fs_u32_copy(ext2_u32_list src, ext2_u32_list *dest);
743 extern int ext2fs_u32_list_equal(ext2_u32_list bb1, ext2_u32_list bb2);
745 extern errcode_t ext2fs_badblocks_list_create(ext2_badblocks_list *ret,
747 extern errcode_t ext2fs_badblocks_list_add(ext2_badblocks_list bb,
749 extern int ext2fs_badblocks_list_test(ext2_badblocks_list bb,
751 extern int ext2fs_u32_list_del(ext2_u32_list bb, __u32 blk);
752 extern void ext2fs_badblocks_list_del(ext2_u32_list bb, __u32 blk);
754 ext2fs_badblocks_list_iterate_begin(ext2_badblocks_list bb,
755 ext2_badblocks_iterate *ret);
756 extern int ext2fs_badblocks_list_iterate(ext2_badblocks_iterate iter,
758 extern void ext2fs_badblocks_list_iterate_end(ext2_badblocks_iterate iter);
759 extern errcode_t ext2fs_badblocks_copy(ext2_badblocks_list src,
760 ext2_badblocks_list *dest);
761 extern int ext2fs_badblocks_equal(ext2_badblocks_list bb1,
762 ext2_badblocks_list bb2);
763 extern int ext2fs_u32_list_count(ext2_u32_list bb);
766 extern errcode_t badblocks_list_create(badblocks_list *ret, int size);
767 extern errcode_t badblocks_list_add(badblocks_list bb, blk_t blk);
768 extern int badblocks_list_test(badblocks_list bb, blk_t blk);
769 extern errcode_t badblocks_list_iterate_begin(badblocks_list bb,
770 badblocks_iterate *ret);
771 extern int badblocks_list_iterate(badblocks_iterate iter, blk_t *blk);
772 extern void badblocks_list_iterate_end(badblocks_iterate iter);
773 extern void badblocks_list_free(badblocks_list bb);
776 extern errcode_t ext2fs_update_bb_inode(ext2_filsys fs,
777 ext2_badblocks_list bb_list);
780 extern void ext2fs_free_block_bitmap(ext2fs_block_bitmap bitmap);
781 extern void ext2fs_free_inode_bitmap(ext2fs_inode_bitmap bitmap);
782 extern errcode_t ext2fs_copy_bitmap(ext2fs_generic_bitmap src,
783 ext2fs_generic_bitmap *dest);
784 extern errcode_t ext2fs_write_inode_bitmap(ext2_filsys fs);
785 extern errcode_t ext2fs_write_block_bitmap (ext2_filsys fs);
786 extern errcode_t ext2fs_read_inode_bitmap (ext2_filsys fs);
787 extern errcode_t ext2fs_read_block_bitmap(ext2_filsys fs);
788 extern errcode_t ext2fs_allocate_block_bitmap(ext2_filsys fs,
790 ext2fs_block_bitmap *ret);
791 extern errcode_t ext2fs_allocate_subcluster_bitmap(ext2_filsys fs,
793 ext2fs_block_bitmap *ret);
794 extern int ext2fs_get_bitmap_granularity(ext2fs_block_bitmap bitmap);
795 extern errcode_t ext2fs_allocate_inode_bitmap(ext2_filsys fs,
797 ext2fs_inode_bitmap *ret);
798 extern errcode_t ext2fs_fudge_inode_bitmap_end(ext2fs_inode_bitmap bitmap,
799 ext2_ino_t end, ext2_ino_t *oend);
800 extern errcode_t ext2fs_fudge_block_bitmap_end(ext2fs_block_bitmap bitmap,
801 blk_t end, blk_t *oend);
802 extern errcode_t ext2fs_fudge_block_bitmap_end2(ext2fs_block_bitmap bitmap,
803 blk64_t end, blk64_t *oend);
804 extern void ext2fs_clear_inode_bitmap(ext2fs_inode_bitmap bitmap);
805 extern void ext2fs_clear_block_bitmap(ext2fs_block_bitmap bitmap);
806 extern errcode_t ext2fs_read_bitmaps(ext2_filsys fs);
807 extern errcode_t ext2fs_write_bitmaps(ext2_filsys fs);
808 extern errcode_t ext2fs_resize_inode_bitmap(__u32 new_end, __u32 new_real_end,
809 ext2fs_inode_bitmap bmap);
810 extern errcode_t ext2fs_resize_inode_bitmap2(__u64 new_end,
812 ext2fs_inode_bitmap bmap);
813 extern errcode_t ext2fs_resize_block_bitmap(__u32 new_end, __u32 new_real_end,
814 ext2fs_block_bitmap bmap);
815 extern errcode_t ext2fs_resize_block_bitmap2(__u64 new_end,
817 ext2fs_block_bitmap bmap);
818 extern errcode_t ext2fs_compare_block_bitmap(ext2fs_block_bitmap bm1,
819 ext2fs_block_bitmap bm2);
820 extern errcode_t ext2fs_compare_inode_bitmap(ext2fs_inode_bitmap bm1,
821 ext2fs_inode_bitmap bm2);
822 extern errcode_t ext2fs_set_inode_bitmap_range(ext2fs_inode_bitmap bmap,
823 ext2_ino_t start, unsigned int num,
825 extern errcode_t ext2fs_set_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
826 __u64 start, size_t num,
828 extern errcode_t ext2fs_get_inode_bitmap_range(ext2fs_inode_bitmap bmap,
829 ext2_ino_t start, unsigned int num,
831 extern errcode_t ext2fs_get_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
832 __u64 start, size_t num,
834 extern errcode_t ext2fs_set_block_bitmap_range(ext2fs_block_bitmap bmap,
835 blk_t start, unsigned int num,
837 extern errcode_t ext2fs_set_block_bitmap_range2(ext2fs_block_bitmap bmap,
838 blk64_t start, size_t num,
840 extern errcode_t ext2fs_get_block_bitmap_range(ext2fs_block_bitmap bmap,
841 blk_t start, unsigned int num,
843 extern errcode_t ext2fs_get_block_bitmap_range2(ext2fs_block_bitmap bmap,
844 blk64_t start, size_t num,
848 extern __u32 ext2fs_inode_bitmap_checksum(ext2_filsys fs, dgrp_t group);
849 extern __u32 ext2fs_block_bitmap_checksum(ext2_filsys fs, dgrp_t group);
850 extern dgrp_t ext2fs_group_of_blk2(ext2_filsys fs, blk64_t);
851 extern blk64_t ext2fs_group_first_block2(ext2_filsys fs, dgrp_t group);
852 extern blk64_t ext2fs_group_last_block2(ext2_filsys fs, dgrp_t group);
853 extern int ext2fs_group_blocks_count(ext2_filsys fs, dgrp_t group);
854 extern blk64_t ext2fs_inode_data_blocks2(ext2_filsys fs,
855 struct ext2_inode *inode);
856 extern blk64_t ext2fs_inode_i_blocks(ext2_filsys fs,
857 struct ext2_inode *inode);
858 extern blk64_t ext2fs_blocks_count(struct ext2_super_block *super);
859 extern void ext2fs_blocks_count_set(struct ext2_super_block *super,
861 extern void ext2fs_blocks_count_add(struct ext2_super_block *super,
863 extern blk64_t ext2fs_r_blocks_count(struct ext2_super_block *super);
864 extern void ext2fs_r_blocks_count_set(struct ext2_super_block *super,
866 extern void ext2fs_r_blocks_count_add(struct ext2_super_block *super,
868 extern blk64_t ext2fs_free_blocks_count(struct ext2_super_block *super);
869 extern void ext2fs_free_blocks_count_set(struct ext2_super_block *super,
871 extern void ext2fs_free_blocks_count_add(struct ext2_super_block *super,
873 /* Block group descriptor accessor functions */
874 extern struct ext2_group_desc *ext2fs_group_desc(ext2_filsys fs,
875 struct opaque_ext2_group_desc *gdp,
877 extern blk64_t ext2fs_block_bitmap_csum(ext2_filsys fs, dgrp_t group);
878 extern blk64_t ext2fs_block_bitmap_loc(ext2_filsys fs, dgrp_t group);
879 extern void ext2fs_block_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
881 extern __u32 ext2fs_inode_bitmap_csum(ext2_filsys fs, dgrp_t group);
882 extern blk64_t ext2fs_inode_bitmap_loc(ext2_filsys fs, dgrp_t group);
883 extern void ext2fs_inode_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
885 extern blk64_t ext2fs_inode_table_loc(ext2_filsys fs, dgrp_t group);
886 extern void ext2fs_inode_table_loc_set(ext2_filsys fs, dgrp_t group,
888 extern __u32 ext2fs_bg_free_blocks_count(ext2_filsys fs, dgrp_t group);
889 extern void ext2fs_bg_free_blocks_count_set(ext2_filsys fs, dgrp_t group,
891 extern __u32 ext2fs_bg_free_inodes_count(ext2_filsys fs, dgrp_t group);
892 extern void ext2fs_bg_free_inodes_count_set(ext2_filsys fs, dgrp_t group,
894 extern __u32 ext2fs_bg_used_dirs_count(ext2_filsys fs, dgrp_t group);
895 extern void ext2fs_bg_used_dirs_count_set(ext2_filsys fs, dgrp_t group,
897 extern __u32 ext2fs_bg_itable_unused(ext2_filsys fs, dgrp_t group);
898 extern void ext2fs_bg_itable_unused_set(ext2_filsys fs, dgrp_t group,
900 extern __u16 ext2fs_bg_flags(ext2_filsys fs, dgrp_t group);
901 extern void ext2fs_bg_flags_zap(ext2_filsys fs, dgrp_t group);
902 extern int ext2fs_bg_flags_test(ext2_filsys fs, dgrp_t group, __u16 bg_flag);
903 extern void ext2fs_bg_flags_set(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
904 extern void ext2fs_bg_flags_clear(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
905 extern __u16 ext2fs_bg_checksum(ext2_filsys fs, dgrp_t group);
906 extern void ext2fs_bg_checksum_set(ext2_filsys fs, dgrp_t group, __u16 checksum);
907 extern blk64_t ext2fs_file_acl_block(ext2_filsys fs,
908 const struct ext2_inode *inode);
909 extern void ext2fs_file_acl_block_set(ext2_filsys fs,
910 struct ext2_inode *inode, blk64_t blk);
911 extern errcode_t ext2fs_inode_size_set(ext2_filsys fs, struct ext2_inode *inode,
915 extern errcode_t ext2fs_block_iterate(ext2_filsys fs,
919 int (*func)(ext2_filsys fs,
924 errcode_t ext2fs_block_iterate2(ext2_filsys fs,
928 int (*func)(ext2_filsys fs,
930 e2_blkcnt_t blockcnt,
935 errcode_t ext2fs_block_iterate3(ext2_filsys fs,
939 int (*func)(ext2_filsys fs,
941 e2_blkcnt_t blockcnt,
948 extern errcode_t ext2fs_bmap(ext2_filsys fs, ext2_ino_t ino,
949 struct ext2_inode *inode,
950 char *block_buf, int bmap_flags,
951 blk_t block, blk_t *phys_blk);
952 extern errcode_t ext2fs_bmap2(ext2_filsys fs, ext2_ino_t ino,
953 struct ext2_inode *inode,
954 char *block_buf, int bmap_flags, blk64_t block,
955 int *ret_flags, blk64_t *phys_blk);
956 errcode_t ext2fs_map_cluster_block(ext2_filsys fs, ext2_ino_t ino,
957 struct ext2_inode *inode, blk64_t lblk,
962 extern errcode_t ext2fs_move_blocks(ext2_filsys fs,
963 ext2fs_block_bitmap reserve,
964 ext2fs_block_bitmap alloc_map,
969 extern errcode_t ext2fs_check_desc(ext2_filsys fs);
972 extern errcode_t ext2fs_close(ext2_filsys fs);
973 extern errcode_t ext2fs_close2(ext2_filsys fs, int flags);
974 extern errcode_t ext2fs_close_free(ext2_filsys *fs);
975 extern errcode_t ext2fs_flush(ext2_filsys fs);
976 extern errcode_t ext2fs_flush2(ext2_filsys fs, int flags);
977 extern int ext2fs_bg_has_super(ext2_filsys fs, dgrp_t group_block);
978 extern errcode_t ext2fs_super_and_bgd_loc2(ext2_filsys fs,
980 blk64_t *ret_super_blk,
981 blk64_t *ret_old_desc_blk,
982 blk64_t *ret_new_desc_blk,
983 blk_t *ret_used_blks);
984 extern int ext2fs_super_and_bgd_loc(ext2_filsys fs,
986 blk_t *ret_super_blk,
987 blk_t *ret_old_desc_blk,
988 blk_t *ret_new_desc_blk,
990 extern void ext2fs_update_dynamic_rev(ext2_filsys fs);
993 extern __u32 ext2fs_crc32_be(__u32 crc, unsigned char const *p, size_t len);
994 extern __u32 ext2fs_crc32c_le(__u32 crc, unsigned char const *p, size_t len);
997 extern void ext2fs_init_csum_seed(ext2_filsys fs);
998 extern errcode_t ext2fs_mmp_csum_set(ext2_filsys fs, struct mmp_struct *mmp);
999 extern int ext2fs_mmp_csum_verify(ext2_filsys, struct mmp_struct *mmp);
1000 extern int ext2fs_verify_csum_type(ext2_filsys fs, struct ext2_super_block *sb);
1001 extern errcode_t ext2fs_superblock_csum_set(ext2_filsys fs,
1002 struct ext2_super_block *sb);
1003 extern int ext2fs_superblock_csum_verify(ext2_filsys fs,
1004 struct ext2_super_block *sb);
1005 extern errcode_t ext2fs_ext_attr_block_csum_set(ext2_filsys fs,
1006 ext2_ino_t inum, blk64_t block,
1007 struct ext2_ext_attr_header *hdr);
1008 extern int ext2fs_ext_attr_block_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1010 struct ext2_ext_attr_header *hdr);
1011 #define EXT2_DIRENT_TAIL(block, blocksize) \
1012 ((struct ext2_dir_entry_tail *)(((char *)(block)) + \
1013 (blocksize) - sizeof(struct ext2_dir_entry_tail)))
1015 extern void ext2fs_initialize_dirent_tail(ext2_filsys fs,
1016 struct ext2_dir_entry_tail *t);
1017 extern int ext2fs_dirent_has_tail(ext2_filsys fs,
1018 struct ext2_dir_entry *dirent);
1019 extern int ext2fs_dirent_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1020 struct ext2_dir_entry *dirent);
1021 extern int ext2fs_dir_block_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1022 struct ext2_dir_entry *dirent);
1023 extern errcode_t ext2fs_dir_block_csum_set(ext2_filsys fs, ext2_ino_t inum,
1024 struct ext2_dir_entry *dirent);
1025 extern errcode_t ext2fs_get_dx_countlimit(ext2_filsys fs,
1026 struct ext2_dir_entry *dirent,
1027 struct ext2_dx_countlimit **cc,
1029 extern errcode_t ext2fs_extent_block_csum_set(ext2_filsys fs,
1031 struct ext3_extent_header *eh);
1032 extern int ext2fs_extent_block_csum_verify(ext2_filsys fs,
1034 struct ext3_extent_header *eh);
1035 extern errcode_t ext2fs_block_bitmap_csum_set(ext2_filsys fs, dgrp_t group,
1036 char *bitmap, int size);
1037 extern int ext2fs_block_bitmap_csum_verify(ext2_filsys fs, dgrp_t group,
1038 char *bitmap, int size);
1039 extern errcode_t ext2fs_inode_bitmap_csum_set(ext2_filsys fs, dgrp_t group,
1040 char *bitmap, int size);
1041 extern int ext2fs_inode_bitmap_csum_verify(ext2_filsys fs, dgrp_t group,
1042 char *bitmap, int size);
1043 extern errcode_t ext2fs_inode_csum_set(ext2_filsys fs, ext2_ino_t inum,
1044 struct ext2_inode_large *inode);
1045 extern int ext2fs_inode_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1046 struct ext2_inode_large *inode);
1047 extern void ext2fs_group_desc_csum_set(ext2_filsys fs, dgrp_t group);
1048 extern int ext2fs_group_desc_csum_verify(ext2_filsys fs, dgrp_t group);
1049 extern errcode_t ext2fs_set_gdt_csum(ext2_filsys fs);
1050 extern __u16 ext2fs_group_desc_csum(ext2_filsys fs, dgrp_t group);
1053 extern errcode_t ext2fs_init_dblist(ext2_filsys fs, ext2_dblist *ret_dblist);
1054 extern errcode_t ext2fs_add_dir_block(ext2_dblist dblist, ext2_ino_t ino,
1055 blk_t blk, int blockcnt);
1056 extern errcode_t ext2fs_add_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
1057 blk64_t blk, e2_blkcnt_t blockcnt);
1058 extern void ext2fs_dblist_sort(ext2_dblist dblist,
1059 EXT2_QSORT_TYPE (*sortfunc)(const void *,
1061 extern void ext2fs_dblist_sort2(ext2_dblist dblist,
1062 EXT2_QSORT_TYPE (*sortfunc)(const void *,
1064 extern errcode_t ext2fs_dblist_iterate(ext2_dblist dblist,
1065 int (*func)(ext2_filsys fs, struct ext2_db_entry *db_info,
1068 extern errcode_t ext2fs_dblist_iterate2(ext2_dblist dblist,
1069 int (*func)(ext2_filsys fs, struct ext2_db_entry2 *db_info,
1072 extern errcode_t ext2fs_dblist_iterate3(ext2_dblist dblist,
1073 int (*func)(ext2_filsys fs, struct ext2_db_entry2 *db_info,
1075 unsigned long long start,
1076 unsigned long long count,
1078 extern errcode_t ext2fs_set_dir_block(ext2_dblist dblist, ext2_ino_t ino,
1079 blk_t blk, int blockcnt);
1080 extern errcode_t ext2fs_set_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
1081 blk64_t blk, e2_blkcnt_t blockcnt);
1082 extern errcode_t ext2fs_copy_dblist(ext2_dblist src,
1084 extern int ext2fs_dblist_count(ext2_dblist dblist);
1085 extern blk64_t ext2fs_dblist_count2(ext2_dblist dblist);
1086 extern errcode_t ext2fs_dblist_get_last(ext2_dblist dblist,
1087 struct ext2_db_entry **entry);
1088 extern errcode_t ext2fs_dblist_get_last2(ext2_dblist dblist,
1089 struct ext2_db_entry2 **entry);
1090 extern errcode_t ext2fs_dblist_drop_last(ext2_dblist dblist);
1094 ext2fs_dblist_dir_iterate(ext2_dblist dblist,
1097 int (*func)(ext2_ino_t dir,
1099 struct ext2_dir_entry *dirent,
1107 /* digest_encode.c */
1108 #define EXT2FS_DIGEST_SIZE EXT2FS_SHA256_LENGTH
1109 extern int ext2fs_digest_encode(const char *src, int len, char *dst);
1110 extern int ext2fs_digest_decode(const char *src, int len, char *dst);
1114 extern errcode_t ext2fs_read_dir_block(ext2_filsys fs, blk_t block,
1116 extern errcode_t ext2fs_read_dir_block2(ext2_filsys fs, blk_t block,
1117 void *buf, int flags);
1118 extern errcode_t ext2fs_read_dir_block3(ext2_filsys fs, blk64_t block,
1119 void *buf, int flags);
1120 extern errcode_t ext2fs_read_dir_block4(ext2_filsys fs, blk64_t block,
1121 void *buf, int flags, ext2_ino_t ino);
1122 extern errcode_t ext2fs_write_dir_block(ext2_filsys fs, blk_t block,
1124 extern errcode_t ext2fs_write_dir_block2(ext2_filsys fs, blk_t block,
1125 void *buf, int flags);
1126 extern errcode_t ext2fs_write_dir_block3(ext2_filsys fs, blk64_t block,
1127 void *buf, int flags);
1128 extern errcode_t ext2fs_write_dir_block4(ext2_filsys fs, blk64_t block,
1129 void *buf, int flags, ext2_ino_t ino);
1132 extern errcode_t ext2fs_dirhash(int version, const char *name, int len,
1134 ext2_dirhash_t *ret_hash,
1135 ext2_dirhash_t *ret_minor_hash);
1139 extern errcode_t ext2fs_get_rec_len(ext2_filsys fs,
1140 struct ext2_dir_entry *dirent,
1141 unsigned int *rec_len);
1142 extern errcode_t ext2fs_set_rec_len(ext2_filsys fs,
1144 struct ext2_dir_entry *dirent);
1145 extern errcode_t ext2fs_dir_iterate(ext2_filsys fs,
1149 int (*func)(struct ext2_dir_entry *dirent,
1155 extern errcode_t ext2fs_dir_iterate2(ext2_filsys fs,
1159 int (*func)(ext2_ino_t dir,
1161 struct ext2_dir_entry *dirent,
1169 extern errcode_t ext2fs_dup_handle(ext2_filsys src, ext2_filsys *dest);
1172 extern errcode_t ext2fs_expand_dir(ext2_filsys fs, ext2_ino_t dir);
1175 extern __u32 ext2fs_ext_attr_hash_entry(struct ext2_ext_attr_entry *entry,
1177 extern errcode_t ext2fs_read_ext_attr(ext2_filsys fs, blk_t block, void *buf);
1178 extern errcode_t ext2fs_read_ext_attr2(ext2_filsys fs, blk64_t block,
1180 extern errcode_t ext2fs_read_ext_attr3(ext2_filsys fs, blk64_t block,
1181 void *buf, ext2_ino_t inum);
1182 extern errcode_t ext2fs_write_ext_attr(ext2_filsys fs, blk_t block,
1184 extern errcode_t ext2fs_write_ext_attr2(ext2_filsys fs, blk64_t block,
1186 extern errcode_t ext2fs_write_ext_attr3(ext2_filsys fs, blk64_t block,
1187 void *buf, ext2_ino_t inum);
1188 extern errcode_t ext2fs_adjust_ea_refcount(ext2_filsys fs, blk_t blk,
1190 int adjust, __u32 *newcount);
1191 extern errcode_t ext2fs_adjust_ea_refcount2(ext2_filsys fs, blk64_t blk,
1193 int adjust, __u32 *newcount);
1194 extern errcode_t ext2fs_adjust_ea_refcount3(ext2_filsys fs, blk64_t blk,
1196 int adjust, __u32 *newcount,
1198 errcode_t ext2fs_xattrs_write(struct ext2_xattr_handle *handle);
1199 errcode_t ext2fs_xattrs_read(struct ext2_xattr_handle *handle);
1200 errcode_t ext2fs_xattrs_iterate(struct ext2_xattr_handle *h,
1201 int (*func)(char *name, char *value,
1202 size_t value_len, void *data),
1204 errcode_t ext2fs_xattr_get(struct ext2_xattr_handle *h, const char *key,
1205 void **value, size_t *value_len);
1206 errcode_t ext2fs_xattr_set(struct ext2_xattr_handle *handle,
1210 errcode_t ext2fs_xattr_remove(struct ext2_xattr_handle *handle,
1212 errcode_t ext2fs_xattrs_open(ext2_filsys fs, ext2_ino_t ino,
1213 struct ext2_xattr_handle **handle);
1214 errcode_t ext2fs_xattrs_close(struct ext2_xattr_handle **handle);
1215 errcode_t ext2fs_free_ext_attr(ext2_filsys fs, ext2_ino_t ino,
1216 struct ext2_inode_large *inode);
1217 errcode_t ext2fs_xattrs_count(struct ext2_xattr_handle *handle, size_t *count);
1218 errcode_t ext2fs_xattr_inode_max_size(ext2_filsys fs, ext2_ino_t ino,
1222 extern errcode_t ext2fs_extent_header_verify(void *ptr, int size);
1223 extern errcode_t ext2fs_extent_open(ext2_filsys fs, ext2_ino_t ino,
1224 ext2_extent_handle_t *handle);
1225 extern errcode_t ext2fs_extent_open2(ext2_filsys fs, ext2_ino_t ino,
1226 struct ext2_inode *inode,
1227 ext2_extent_handle_t *ret_handle);
1228 extern void ext2fs_extent_free(ext2_extent_handle_t handle);
1229 extern errcode_t ext2fs_extent_get(ext2_extent_handle_t handle,
1230 int flags, struct ext2fs_extent *extent);
1231 extern errcode_t ext2fs_extent_node_split(ext2_extent_handle_t handle);
1232 extern errcode_t ext2fs_extent_replace(ext2_extent_handle_t handle, int flags,
1233 struct ext2fs_extent *extent);
1234 extern errcode_t ext2fs_extent_insert(ext2_extent_handle_t handle, int flags,
1235 struct ext2fs_extent *extent);
1236 extern errcode_t ext2fs_extent_set_bmap(ext2_extent_handle_t handle,
1237 blk64_t logical, blk64_t physical,
1239 extern errcode_t ext2fs_extent_delete(ext2_extent_handle_t handle, int flags);
1240 extern errcode_t ext2fs_extent_get_info(ext2_extent_handle_t handle,
1241 struct ext2_extent_info *info);
1242 extern errcode_t ext2fs_extent_goto(ext2_extent_handle_t handle,
1244 extern errcode_t ext2fs_extent_goto2(ext2_extent_handle_t handle,
1245 int leaf_level, blk64_t blk);
1246 extern errcode_t ext2fs_extent_fix_parents(ext2_extent_handle_t handle);
1247 size_t ext2fs_max_extent_depth(ext2_extent_handle_t handle);
1250 #define EXT2_FALLOCATE_ZERO_BLOCKS (0x1)
1251 #define EXT2_FALLOCATE_FORCE_INIT (0x2)
1252 #define EXT2_FALLOCATE_FORCE_UNINIT (0x4)
1253 #define EXT2_FALLOCATE_INIT_BEYOND_EOF (0x8)
1254 #define EXT2_FALLOCATE_ALL_FLAGS (0xF)
1255 errcode_t ext2fs_fallocate(ext2_filsys fs, int flags, ext2_ino_t ino,
1256 struct ext2_inode *inode, blk64_t goal,
1257 blk64_t start, blk64_t len);
1260 extern errcode_t ext2fs_file_open2(ext2_filsys fs, ext2_ino_t ino,
1261 struct ext2_inode *inode,
1262 int flags, ext2_file_t *ret);
1263 extern errcode_t ext2fs_file_open(ext2_filsys fs, ext2_ino_t ino,
1264 int flags, ext2_file_t *ret);
1265 extern ext2_filsys ext2fs_file_get_fs(ext2_file_t file);
1266 struct ext2_inode *ext2fs_file_get_inode(ext2_file_t file);
1267 extern ext2_ino_t ext2fs_file_get_inode_num(ext2_file_t file);
1268 extern errcode_t ext2fs_file_close(ext2_file_t file);
1269 extern errcode_t ext2fs_file_flush(ext2_file_t file);
1270 extern errcode_t ext2fs_file_read(ext2_file_t file, void *buf,
1271 unsigned int wanted, unsigned int *got);
1272 extern errcode_t ext2fs_file_write(ext2_file_t file, const void *buf,
1273 unsigned int nbytes, unsigned int *written);
1274 extern errcode_t ext2fs_file_llseek(ext2_file_t file, __u64 offset,
1275 int whence, __u64 *ret_pos);
1276 extern errcode_t ext2fs_file_lseek(ext2_file_t file, ext2_off_t offset,
1277 int whence, ext2_off_t *ret_pos);
1278 errcode_t ext2fs_file_get_lsize(ext2_file_t file, __u64 *ret_size);
1279 extern ext2_off_t ext2fs_file_get_size(ext2_file_t file);
1280 extern errcode_t ext2fs_file_set_size(ext2_file_t file, ext2_off_t size);
1281 extern errcode_t ext2fs_file_set_size2(ext2_file_t file, ext2_off64_t size);
1284 extern char *ext2fs_find_block_device(dev_t device);
1287 extern errcode_t ext2fs_sync_device(int fd, int flushb);
1290 extern void ext2fs_free(ext2_filsys fs);
1291 extern void ext2fs_free_dblist(ext2_dblist dblist);
1292 extern void ext2fs_badblocks_list_free(ext2_badblocks_list bb);
1293 extern void ext2fs_u32_list_free(ext2_u32_list bb);
1296 extern void ext2fs_free_generic_bitmap(ext2fs_inode_bitmap bitmap);
1297 extern errcode_t ext2fs_make_generic_bitmap(errcode_t magic, ext2_filsys fs,
1298 __u32 start, __u32 end,
1300 const char *descr, char *init_map,
1301 ext2fs_generic_bitmap *ret);
1302 extern errcode_t ext2fs_allocate_generic_bitmap(__u32 start,
1306 ext2fs_generic_bitmap *ret);
1307 extern errcode_t ext2fs_copy_generic_bitmap(ext2fs_generic_bitmap src,
1308 ext2fs_generic_bitmap *dest);
1309 extern void ext2fs_clear_generic_bitmap(ext2fs_generic_bitmap bitmap);
1310 extern errcode_t ext2fs_fudge_generic_bitmap_end(ext2fs_inode_bitmap bitmap,
1315 extern void ext2fs_set_generic_bitmap_padding(ext2fs_generic_bitmap map);
1316 extern errcode_t ext2fs_resize_generic_bitmap(errcode_t magic,
1319 ext2fs_generic_bitmap bmap);
1320 extern errcode_t ext2fs_compare_generic_bitmap(errcode_t magic, errcode_t neq,
1321 ext2fs_generic_bitmap bm1,
1322 ext2fs_generic_bitmap bm2);
1323 extern errcode_t ext2fs_get_generic_bitmap_range(ext2fs_generic_bitmap bmap,
1325 __u32 start, __u32 num,
1327 extern errcode_t ext2fs_set_generic_bitmap_range(ext2fs_generic_bitmap bmap,
1329 __u32 start, __u32 num,
1331 extern errcode_t ext2fs_find_first_zero_generic_bitmap(ext2fs_generic_bitmap bitmap,
1332 __u32 start, __u32 end,
1334 extern errcode_t ext2fs_find_first_set_generic_bitmap(ext2fs_generic_bitmap bitmap,
1335 __u32 start, __u32 end,
1338 /* gen_bitmap64.c */
1339 void ext2fs_free_generic_bmap(ext2fs_generic_bitmap bmap);
1340 errcode_t ext2fs_alloc_generic_bmap(ext2_filsys fs, errcode_t magic,
1341 int type, __u64 start, __u64 end,
1344 ext2fs_generic_bitmap *ret);
1345 errcode_t ext2fs_copy_generic_bmap(ext2fs_generic_bitmap src,
1346 ext2fs_generic_bitmap *dest);
1347 void ext2fs_clear_generic_bmap(ext2fs_generic_bitmap bitmap);
1348 errcode_t ext2fs_fudge_generic_bmap_end(ext2fs_generic_bitmap bitmap,
1350 __u64 end, __u64 *oend);
1351 void ext2fs_set_generic_bmap_padding(ext2fs_generic_bitmap bmap);
1352 errcode_t ext2fs_resize_generic_bmap(ext2fs_generic_bitmap bmap,
1354 __u64 new_real_end);
1355 errcode_t ext2fs_compare_generic_bmap(errcode_t neq,
1356 ext2fs_generic_bitmap bm1,
1357 ext2fs_generic_bitmap bm2);
1358 errcode_t ext2fs_get_generic_bmap_range(ext2fs_generic_bitmap bmap,
1359 __u64 start, unsigned int num,
1361 errcode_t ext2fs_set_generic_bmap_range(ext2fs_generic_bitmap bmap,
1362 __u64 start, unsigned int num,
1364 errcode_t ext2fs_convert_subcluster_bitmap(ext2_filsys fs,
1365 ext2fs_block_bitmap *bitmap);
1367 /* get_num_dirs.c */
1368 extern errcode_t ext2fs_get_num_dirs(ext2_filsys fs, ext2_ino_t *ret_num_dirs);
1371 extern errcode_t ext2fs_get_device_size(const char *file, int blocksize,
1373 extern errcode_t ext2fs_get_device_size2(const char *file, int blocksize,
1374 blk64_t *retblocks);
1377 extern int ext2fs_get_dio_alignment(int fd);
1378 errcode_t ext2fs_get_device_sectsize(const char *file, int *sectsize);
1379 errcode_t ext2fs_get_device_phys_sectsize(const char *file, int *sectsize);
1382 errcode_t ext2fs_iblk_add_blocks(ext2_filsys fs, struct ext2_inode *inode,
1383 blk64_t num_blocks);
1384 errcode_t ext2fs_iblk_sub_blocks(ext2_filsys fs, struct ext2_inode *inode,
1385 blk64_t num_blocks);
1386 errcode_t ext2fs_iblk_set(ext2_filsys fs, struct ext2_inode *inode, blk64_t b);
1389 extern errcode_t ext2fs_image_inode_write(ext2_filsys fs, int fd, int flags);
1390 extern errcode_t ext2fs_image_inode_read(ext2_filsys fs, int fd, int flags);
1391 extern errcode_t ext2fs_image_super_write(ext2_filsys fs, int fd, int flags);
1392 extern errcode_t ext2fs_image_super_read(ext2_filsys fs, int fd, int flags);
1393 extern errcode_t ext2fs_image_bitmap_write(ext2_filsys fs, int fd, int flags);
1394 extern errcode_t ext2fs_image_bitmap_read(ext2_filsys fs, int fd, int flags);
1397 errcode_t ext2fs_read_ind_block(ext2_filsys fs, blk_t blk, void *buf);
1398 errcode_t ext2fs_write_ind_block(ext2_filsys fs, blk_t blk, void *buf);
1401 extern errcode_t ext2fs_initialize(const char *name, int flags,
1402 struct ext2_super_block *param,
1403 io_manager manager, ext2_filsys *ret_fs);
1406 extern void ext2fs_free_icount(ext2_icount_t icount);
1407 extern errcode_t ext2fs_create_icount_tdb(ext2_filsys fs, char *tdb_dir,
1408 int flags, ext2_icount_t *ret);
1409 extern errcode_t ext2fs_create_icount2(ext2_filsys fs, int flags,
1411 ext2_icount_t hint, ext2_icount_t *ret);
1412 extern errcode_t ext2fs_create_icount(ext2_filsys fs, int flags,
1414 ext2_icount_t *ret);
1415 extern errcode_t ext2fs_icount_fetch(ext2_icount_t icount, ext2_ino_t ino,
1417 extern errcode_t ext2fs_icount_increment(ext2_icount_t icount, ext2_ino_t ino,
1419 extern errcode_t ext2fs_icount_decrement(ext2_icount_t icount, ext2_ino_t ino,
1421 extern errcode_t ext2fs_icount_store(ext2_icount_t icount, ext2_ino_t ino,
1423 extern ext2_ino_t ext2fs_get_icount_size(ext2_icount_t icount);
1424 errcode_t ext2fs_icount_validate(ext2_icount_t icount, FILE *);
1428 extern errcode_t ext2fs_get_memalign(unsigned long size,
1429 unsigned long align, void *ptr);
1432 extern errcode_t ext2fs_inline_data_init(ext2_filsys fs, ext2_ino_t ino);
1433 extern errcode_t ext2fs_inline_data_size(ext2_filsys fs, ext2_ino_t ino,
1435 extern errcode_t ext2fs_inline_data_get(ext2_filsys fs, ext2_ino_t ino,
1436 struct ext2_inode *inode,
1437 void *buf, size_t *size);
1438 extern errcode_t ext2fs_inline_data_set(ext2_filsys fs, ext2_ino_t ino,
1439 struct ext2_inode *inode,
1440 void *buf, size_t size);
1443 extern errcode_t ext2fs_create_inode_cache(ext2_filsys fs,
1444 unsigned int cache_size);
1445 extern void ext2fs_free_inode_cache(struct ext2_inode_cache *icache);
1446 extern errcode_t ext2fs_flush_icache(ext2_filsys fs);
1447 extern errcode_t ext2fs_get_next_inode_full(ext2_inode_scan scan,
1449 struct ext2_inode *inode,
1451 #define EXT2_INODE_SCAN_DEFAULT_BUFFER_BLOCKS 8
1452 extern errcode_t ext2fs_open_inode_scan(ext2_filsys fs, int buffer_blocks,
1453 ext2_inode_scan *ret_scan);
1454 extern void ext2fs_close_inode_scan(ext2_inode_scan scan);
1455 extern errcode_t ext2fs_get_next_inode(ext2_inode_scan scan, ext2_ino_t *ino,
1456 struct ext2_inode *inode);
1457 extern errcode_t ext2fs_inode_scan_goto_blockgroup(ext2_inode_scan scan,
1459 extern void ext2fs_set_inode_callback
1460 (ext2_inode_scan scan,
1461 errcode_t (*done_group)(ext2_filsys fs,
1462 ext2_inode_scan scan,
1465 void *done_group_data);
1466 extern int ext2fs_inode_scan_flags(ext2_inode_scan scan, int set_flags,
1468 extern errcode_t ext2fs_read_inode_full(ext2_filsys fs, ext2_ino_t ino,
1469 struct ext2_inode * inode,
1471 extern errcode_t ext2fs_read_inode (ext2_filsys fs, ext2_ino_t ino,
1472 struct ext2_inode * inode);
1473 extern errcode_t ext2fs_write_inode_full(ext2_filsys fs, ext2_ino_t ino,
1474 struct ext2_inode * inode,
1476 extern errcode_t ext2fs_write_inode(ext2_filsys fs, ext2_ino_t ino,
1477 struct ext2_inode * inode);
1478 extern errcode_t ext2fs_write_new_inode(ext2_filsys fs, ext2_ino_t ino,
1479 struct ext2_inode * inode);
1480 extern errcode_t ext2fs_get_blocks(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
1481 extern errcode_t ext2fs_check_directory(ext2_filsys fs, ext2_ino_t ino);
1484 extern io_manager inode_io_manager;
1485 extern errcode_t ext2fs_inode_io_intern(ext2_filsys fs, ext2_ino_t ino,
1487 extern errcode_t ext2fs_inode_io_intern2(ext2_filsys fs, ext2_ino_t ino,
1488 struct ext2_inode *inode,
1492 extern errcode_t ext2fs_check_if_mounted(const char *file, int *mount_flags);
1493 extern errcode_t ext2fs_check_mount_point(const char *device, int *mount_flags,
1494 char *mtpt, int mtlen);
1498 * NOTE: This function removes from an inode the blocks "start", "end", and
1499 * every block in between.
1501 extern errcode_t ext2fs_punch(ext2_filsys fs, ext2_ino_t ino,
1502 struct ext2_inode *inode,
1503 char *block_buf, blk64_t start,
1507 extern errcode_t ext2fs_lookup(ext2_filsys fs, ext2_ino_t dir, const char *name,
1508 int namelen, char *buf, ext2_ino_t *inode);
1509 extern errcode_t ext2fs_namei(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1510 const char *name, ext2_ino_t *inode);
1511 errcode_t ext2fs_namei_follow(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1512 const char *name, ext2_ino_t *inode);
1513 extern errcode_t ext2fs_follow_link(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1514 ext2_ino_t inode, ext2_ino_t *res_inode);
1517 int ext2fs_native_flag(void);
1520 extern errcode_t ext2fs_new_dir_block(ext2_filsys fs, ext2_ino_t dir_ino,
1521 ext2_ino_t parent_ino, char **block);
1522 extern errcode_t ext2fs_new_dir_inline_data(ext2_filsys fs, ext2_ino_t dir_ino,
1523 ext2_ino_t parent_ino, __u32 *iblock);
1526 extern errcode_t ext2fs_mkdir(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t inum,
1530 extern errcode_t ext2fs_zero_blocks(ext2_filsys fs, blk_t blk, int num,
1531 blk_t *ret_blk, int *ret_count);
1532 extern errcode_t ext2fs_zero_blocks2(ext2_filsys fs, blk64_t blk, int num,
1533 blk64_t *ret_blk, int *ret_count);
1534 extern errcode_t ext2fs_create_journal_superblock(ext2_filsys fs,
1535 __u32 num_blocks, int flags,
1537 extern errcode_t ext2fs_add_journal_device(ext2_filsys fs,
1538 ext2_filsys journal_dev);
1539 extern errcode_t ext2fs_add_journal_inode(ext2_filsys fs, blk_t num_blocks,
1541 extern errcode_t ext2fs_add_journal_inode2(ext2_filsys fs, blk_t num_blocks,
1542 blk64_t goal, int flags);
1543 extern int ext2fs_default_journal_size(__u64 num_blocks);
1544 extern int ext2fs_journal_sb_start(int blocksize);
1547 extern errcode_t ext2fs_open(const char *name, int flags, int superblock,
1548 unsigned int block_size, io_manager manager,
1549 ext2_filsys *ret_fs);
1550 extern errcode_t ext2fs_open2(const char *name, const char *io_options,
1551 int flags, int superblock,
1552 unsigned int block_size, io_manager manager,
1553 ext2_filsys *ret_fs);
1555 * The dgrp_t argument to these two functions is not actually a group number
1556 * but a block number offset within a group table! Convert with the formula
1557 * (group_number / groups_per_block).
1559 extern blk64_t ext2fs_descriptor_block_loc2(ext2_filsys fs,
1560 blk64_t group_block, dgrp_t i);
1561 extern blk_t ext2fs_descriptor_block_loc(ext2_filsys fs, blk_t group_block,
1563 errcode_t ext2fs_get_data_io(ext2_filsys fs, io_channel *old_io);
1564 errcode_t ext2fs_set_data_io(ext2_filsys fs, io_channel new_io);
1565 errcode_t ext2fs_rewrite_to_io(ext2_filsys fs, io_channel new_io);
1567 /* get_pathname.c */
1568 extern errcode_t ext2fs_get_pathname(ext2_filsys fs, ext2_ino_t dir, ext2_ino_t ino,
1572 errcode_t ext2fs_link(ext2_filsys fs, ext2_ino_t dir, const char *name,
1573 ext2_ino_t ino, int flags);
1574 errcode_t ext2fs_unlink(ext2_filsys fs, ext2_ino_t dir, const char *name,
1575 ext2_ino_t ino, int flags);
1578 errcode_t ext2fs_symlink(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t ino,
1579 const char *name, const char *target);
1582 errcode_t ext2fs_mmp_read(ext2_filsys fs, blk64_t mmp_blk, void *buf);
1583 errcode_t ext2fs_mmp_write(ext2_filsys fs, blk64_t mmp_blk, void *buf);
1584 errcode_t ext2fs_mmp_clear(ext2_filsys fs);
1585 errcode_t ext2fs_mmp_init(ext2_filsys fs);
1586 errcode_t ext2fs_mmp_start(ext2_filsys fs);
1587 errcode_t ext2fs_mmp_update(ext2_filsys fs);
1588 errcode_t ext2fs_mmp_update2(ext2_filsys fs, int immediately);
1589 errcode_t ext2fs_mmp_stop(ext2_filsys fs);
1590 unsigned ext2fs_mmp_new_seq(void);
1593 extern errcode_t ext2fs_read_bb_inode(ext2_filsys fs,
1594 ext2_badblocks_list *bb_list);
1596 /* read_bb_file.c */
1597 extern errcode_t ext2fs_read_bb_FILE2(ext2_filsys fs, FILE *f,
1598 ext2_badblocks_list *bb_list,
1600 void (*invalid)(ext2_filsys fs,
1604 extern errcode_t ext2fs_read_bb_FILE(ext2_filsys fs, FILE *f,
1605 ext2_badblocks_list *bb_list,
1606 void (*invalid)(ext2_filsys fs,
1610 extern errcode_t ext2fs_create_resize_inode(ext2_filsys fs);
1613 #define EXT2FS_SHA256_LENGTH 32
1615 extern void ext2fs_sha256(const unsigned char *in, unsigned long in_size,
1616 unsigned char out[EXT2FS_SHA256_LENGTH]);
1620 #define EXT2FS_SHA512_LENGTH 64
1621 extern void ext2fs_sha512(const unsigned char *in, unsigned long in_size,
1622 unsigned char out[EXT2FS_SHA512_LENGTH]);
1625 extern errcode_t ext2fs_dirent_swab_in2(ext2_filsys fs, char *buf, size_t size,
1627 extern errcode_t ext2fs_dirent_swab_in(ext2_filsys fs, char *buf, int flags);
1628 extern errcode_t ext2fs_dirent_swab_out2(ext2_filsys fs, char *buf, size_t size,
1630 extern errcode_t ext2fs_dirent_swab_out(ext2_filsys fs, char *buf, int flags);
1631 extern void ext2fs_swap_ext_attr(char *to, char *from, int bufsize,
1633 extern void ext2fs_swap_ext_attr_header(struct ext2_ext_attr_header *to_header,
1634 struct ext2_ext_attr_header *from_hdr);
1635 extern void ext2fs_swap_ext_attr_entry(struct ext2_ext_attr_entry *to_entry,
1636 struct ext2_ext_attr_entry *from_entry);
1637 extern void ext2fs_swap_super(struct ext2_super_block * super);
1638 extern void ext2fs_swap_group_desc(struct ext2_group_desc *gdp);
1639 extern void ext2fs_swap_group_desc2(ext2_filsys, struct ext2_group_desc *gdp);
1640 extern void ext2fs_swap_inode_full(ext2_filsys fs, struct ext2_inode_large *t,
1641 struct ext2_inode_large *f, int hostorder,
1643 extern void ext2fs_swap_inode(ext2_filsys fs,struct ext2_inode *t,
1644 struct ext2_inode *f, int hostorder);
1645 extern void ext2fs_swap_mmp(struct mmp_struct *mmp);
1648 extern int ext2fs_open_file(const char *pathname, int flags, mode_t mode);
1649 extern int ext2fs_stat(const char *path, ext2fs_struct_stat *buf);
1650 extern int ext2fs_fstat(int fd, ext2fs_struct_stat *buf);
1653 extern int ext2fs_inode_has_valid_blocks(struct ext2_inode *inode);
1654 extern int ext2fs_inode_has_valid_blocks2(ext2_filsys fs,
1655 struct ext2_inode *inode);
1658 extern int ext2fs_parse_version_string(const char *ver_string);
1659 extern int ext2fs_get_library_version(const char **ver_string,
1660 const char **date_string);
1662 /* write_bb_file.c */
1663 extern errcode_t ext2fs_write_bb_FILE(ext2_badblocks_list bb_list,
1668 /* inline functions */
1669 #ifdef NO_INLINE_FUNCS
1670 extern errcode_t ext2fs_get_mem(unsigned long size, void *ptr);
1671 extern errcode_t ext2fs_get_memzero(unsigned long size, void *ptr);
1672 extern errcode_t ext2fs_get_array(unsigned long count,
1673 unsigned long size, void *ptr);
1674 extern errcode_t ext2fs_get_arrayzero(unsigned long count,
1675 unsigned long size, void *ptr);
1676 extern errcode_t ext2fs_free_mem(void *ptr);
1677 extern errcode_t ext2fs_resize_mem(unsigned long old_size,
1678 unsigned long size, void *ptr);
1679 extern void ext2fs_mark_super_dirty(ext2_filsys fs);
1680 extern void ext2fs_mark_changed(ext2_filsys fs);
1681 extern int ext2fs_test_changed(ext2_filsys fs);
1682 extern void ext2fs_mark_valid(ext2_filsys fs);
1683 extern void ext2fs_unmark_valid(ext2_filsys fs);
1684 extern int ext2fs_test_valid(ext2_filsys fs);
1685 extern void ext2fs_mark_ib_dirty(ext2_filsys fs);
1686 extern void ext2fs_mark_bb_dirty(ext2_filsys fs);
1687 extern int ext2fs_test_ib_dirty(ext2_filsys fs);
1688 extern int ext2fs_test_bb_dirty(ext2_filsys fs);
1689 extern dgrp_t ext2fs_group_of_blk(ext2_filsys fs, blk_t blk);
1690 extern dgrp_t ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino);
1691 extern blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group);
1692 extern blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group);
1693 extern blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
1694 struct ext2_inode *inode);
1695 extern unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b);
1696 extern __u64 ext2fs_div64_ceil(__u64 a, __u64 b);
1697 extern int ext2fs_dirent_name_len(const struct ext2_dir_entry *entry);
1698 extern void ext2fs_dirent_set_name_len(struct ext2_dir_entry *entry, int len);
1699 extern int ext2fs_dirent_file_type(const struct ext2_dir_entry *entry);
1700 extern void ext2fs_dirent_set_file_type(struct ext2_dir_entry *entry, int type);
1701 extern struct ext2_inode *ext2fs_inode(struct ext2_inode_large * large_inode);
1702 extern const struct ext2_inode *ext2fs_const_inode(const struct ext2_inode_large * large_inode);
1707 * The actual inlined functions definitions themselves...
1709 * If NO_INLINE_FUNCS is defined, then we won't try to do inline
1712 #if (defined(INCLUDE_INLINE_FUNCS) || !defined(NO_INLINE_FUNCS))
1713 #ifdef INCLUDE_INLINE_FUNCS
1714 #define _INLINE_ extern
1716 #if (__STDC_VERSION__ >= 199901L)
1717 #define _INLINE_ inline
1720 #define _INLINE_ extern __inline__
1721 #else /* For Watcom C */
1722 #define _INLINE_ extern inline
1723 #endif /* __GNUC__ */
1724 #endif /* __STDC_VERSION__ >= 199901L */
1727 #ifndef EXT2_CUSTOM_MEMORY_ROUTINES
1730 * Allocate memory. The 'ptr' arg must point to a pointer.
1732 _INLINE_ errcode_t ext2fs_get_mem(unsigned long size, void *ptr)
1738 return EXT2_ET_NO_MEMORY;
1739 memcpy(ptr, &pp, sizeof (pp));
1743 _INLINE_ errcode_t ext2fs_get_memzero(unsigned long size, void *ptr)
1749 return EXT2_ET_NO_MEMORY;
1750 memset(pp, 0, size);
1751 memcpy(ptr, &pp, sizeof(pp));
1755 _INLINE_ errcode_t ext2fs_get_array(unsigned long count, unsigned long size, void *ptr)
1757 if (count && (~0UL)/count < size)
1758 return EXT2_ET_NO_MEMORY;
1759 return ext2fs_get_mem(count*size, ptr);
1762 _INLINE_ errcode_t ext2fs_get_arrayzero(unsigned long count,
1763 unsigned long size, void *ptr)
1767 if (count && (~0UL)/count < size)
1768 return EXT2_ET_NO_MEMORY;
1769 pp = calloc(count, size);
1771 return EXT2_ET_NO_MEMORY;
1772 memcpy(ptr, &pp, sizeof(pp));
1777 * Free memory. The 'ptr' arg must point to a pointer.
1779 _INLINE_ errcode_t ext2fs_free_mem(void *ptr)
1783 memcpy(&p, ptr, sizeof(p));
1786 memcpy(ptr, &p, sizeof(p));
1791 * Resize memory. The 'ptr' arg must point to a pointer.
1793 _INLINE_ errcode_t ext2fs_resize_mem(unsigned long EXT2FS_ATTR((unused)) old_size,
1794 unsigned long size, void *ptr)
1798 /* Use "memcpy" for pointer assignments here to avoid problems
1799 * with C99 strict type aliasing rules. */
1800 memcpy(&p, ptr, sizeof(p));
1801 p = realloc(p, size);
1803 return EXT2_ET_NO_MEMORY;
1804 memcpy(ptr, &p, sizeof(p));
1807 #endif /* Custom memory routines */
1810 * Mark a filesystem superblock as dirty
1812 _INLINE_ void ext2fs_mark_super_dirty(ext2_filsys fs)
1814 fs->flags |= EXT2_FLAG_DIRTY | EXT2_FLAG_CHANGED;
1818 * Mark a filesystem as changed
1820 _INLINE_ void ext2fs_mark_changed(ext2_filsys fs)
1822 fs->flags |= EXT2_FLAG_CHANGED;
1826 * Check to see if a filesystem has changed
1828 _INLINE_ int ext2fs_test_changed(ext2_filsys fs)
1830 return (fs->flags & EXT2_FLAG_CHANGED);
1834 * Mark a filesystem as valid
1836 _INLINE_ void ext2fs_mark_valid(ext2_filsys fs)
1838 fs->flags |= EXT2_FLAG_VALID;
1842 * Mark a filesystem as NOT valid
1844 _INLINE_ void ext2fs_unmark_valid(ext2_filsys fs)
1846 fs->flags &= ~EXT2_FLAG_VALID;
1850 * Check to see if a filesystem is valid
1852 _INLINE_ int ext2fs_test_valid(ext2_filsys fs)
1854 return (fs->flags & EXT2_FLAG_VALID);
1858 * Mark the inode bitmap as dirty
1860 _INLINE_ void ext2fs_mark_ib_dirty(ext2_filsys fs)
1862 fs->flags |= EXT2_FLAG_IB_DIRTY | EXT2_FLAG_CHANGED;
1866 * Mark the block bitmap as dirty
1868 _INLINE_ void ext2fs_mark_bb_dirty(ext2_filsys fs)
1870 fs->flags |= EXT2_FLAG_BB_DIRTY | EXT2_FLAG_CHANGED;
1874 * Check to see if a filesystem's inode bitmap is dirty
1876 _INLINE_ int ext2fs_test_ib_dirty(ext2_filsys fs)
1878 return (fs->flags & EXT2_FLAG_IB_DIRTY);
1882 * Check to see if a filesystem's block bitmap is dirty
1884 _INLINE_ int ext2fs_test_bb_dirty(ext2_filsys fs)
1886 return (fs->flags & EXT2_FLAG_BB_DIRTY);
1890 * Return the group # of a block
1892 _INLINE_ dgrp_t ext2fs_group_of_blk(ext2_filsys fs, blk_t blk)
1894 return ext2fs_group_of_blk2(fs, blk);
1897 * Return the group # of an inode number
1899 _INLINE_ dgrp_t ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino)
1901 return (ino - 1) / fs->super->s_inodes_per_group;
1905 * Return the first block (inclusive) in a group
1907 _INLINE_ blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group)
1909 return (blk_t) ext2fs_group_first_block2(fs, group);
1913 * Return the last block (inclusive) in a group
1915 _INLINE_ blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group)
1917 return (blk_t) ext2fs_group_last_block2(fs, group);
1920 _INLINE_ blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
1921 struct ext2_inode *inode)
1923 return (blk_t) ext2fs_inode_data_blocks2(fs, inode);
1927 * This is an efficient, overflow safe way of calculating ceil((1.0 * a) / b)
1929 _INLINE_ unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b)
1933 return ((a - 1) / b) + 1;
1936 _INLINE_ __u64 ext2fs_div64_ceil(__u64 a, __u64 b)
1940 return ((a - 1) / b) + 1;
1943 _INLINE_ int ext2fs_dirent_name_len(const struct ext2_dir_entry *entry)
1945 return entry->name_len & 0xff;
1948 _INLINE_ void ext2fs_dirent_set_name_len(struct ext2_dir_entry *entry, int len)
1950 entry->name_len = (entry->name_len & 0xff00) | (len & 0xff);
1953 _INLINE_ int ext2fs_dirent_file_type(const struct ext2_dir_entry *entry)
1955 return entry->name_len >> 8;
1958 _INLINE_ void ext2fs_dirent_set_file_type(struct ext2_dir_entry *entry, int type)
1960 entry->name_len = (entry->name_len & 0xff) | (type << 8);
1963 _INLINE_ struct ext2_inode *ext2fs_inode(struct ext2_inode_large * large_inode)
1965 /* It is always safe to convert large inode to a small inode */
1966 return (struct ext2_inode *) large_inode;
1969 _INLINE_ const struct ext2_inode *
1970 ext2fs_const_inode(const struct ext2_inode_large * large_inode)
1972 /* It is always safe to convert large inode to a small inode */
1973 return (const struct ext2_inode *) large_inode;
1983 #endif /* _EXT2FS_EXT2FS_H */