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)
26 * Non-GNU C compilers won't necessarily understand inline
28 #if (!defined(__GNUC__) && !defined(__WATCOMC__))
29 #define NO_INLINE_FUNCS
33 * Where the master copy of the superblock is located, and how big
34 * superblocks are supposed to be. We define SUPERBLOCK_SIZE because
35 * the size of the superblock structure is not necessarily trustworthy
36 * (some versions have the padding set up so that the superblock is
39 #define SUPERBLOCK_OFFSET 1024
40 #define SUPERBLOCK_SIZE 1024
43 * The last ext2fs revision level that this version of the library is
46 #define EXT2_LIB_CURRENT_REV EXT2_DYNAMIC_REV
48 #ifdef HAVE_SYS_TYPES_H
49 #include <sys/types.h>
57 #if EXT2_FLAT_INCLUDES
60 #include "ext3_extents.h"
62 #include <ext2fs/ext2_types.h>
63 #include <ext2fs/ext2_fs.h>
64 #include <ext2fs/ext3_extents.h>
65 #endif /* EXT2_FLAT_INCLUDES */
67 #ifdef __CHECK_ENDIAN__
68 #define __bitwise __attribute__((bitwise))
73 typedef __u32 __bitwise ext2_ino_t;
74 typedef __u32 __bitwise blk_t;
75 typedef __u64 __bitwise blk64_t;
76 typedef __u32 __bitwise dgrp_t;
77 typedef __u32 __bitwise ext2_off_t;
78 typedef __u64 __bitwise ext2_off64_t;
79 typedef __s64 __bitwise e2_blkcnt_t;
80 typedef __u32 __bitwise ext2_dirhash_t;
82 #if EXT2_FLAT_INCLUDES
86 #include "ext2_ext_attr.h"
88 #include <et/com_err.h>
89 #include <ext2fs/ext2_io.h>
90 #include <ext2fs/ext2_err.h>
91 #include <ext2fs/ext2_ext_attr.h>
95 * Portability help for Microsoft Visual C++
98 #define EXT2_QSORT_TYPE int __cdecl
100 #define EXT2_QSORT_TYPE int
103 typedef struct struct_ext2_filsys *ext2_filsys;
105 #define EXT2FS_MARK_ERROR 0
106 #define EXT2FS_UNMARK_ERROR 1
107 #define EXT2FS_TEST_ERROR 2
109 typedef struct ext2fs_struct_generic_bitmap *ext2fs_generic_bitmap;
110 typedef struct ext2fs_struct_generic_bitmap *ext2fs_inode_bitmap;
111 typedef struct ext2fs_struct_generic_bitmap *ext2fs_block_bitmap;
113 #define EXT2_FIRST_INODE(s) EXT2_FIRST_INO(s)
117 * Badblocks list definitions
120 typedef struct ext2_struct_u32_list *ext2_badblocks_list;
121 typedef struct ext2_struct_u32_iterate *ext2_badblocks_iterate;
123 typedef struct ext2_struct_u32_list *ext2_u32_list;
124 typedef struct ext2_struct_u32_iterate *ext2_u32_iterate;
127 typedef struct ext2_struct_u32_list *badblocks_list;
128 typedef struct ext2_struct_u32_iterate *badblocks_iterate;
130 #define BADBLOCKS_FLAG_DIRTY 1
133 * ext2_dblist structure and abstractions (see dblist.c)
135 struct ext2_db_entry2 {
138 e2_blkcnt_t blockcnt;
141 /* Ye Olde 32-bit version */
142 struct ext2_db_entry {
148 typedef struct ext2_struct_dblist *ext2_dblist;
150 #define DBLIST_ABORT 1
153 * ext2_fileio definitions
156 #define EXT2_FILE_WRITE 0x0001
157 #define EXT2_FILE_CREATE 0x0002
159 #define EXT2_FILE_MASK 0x00FF
161 #define EXT2_FILE_BUF_DIRTY 0x4000
162 #define EXT2_FILE_BUF_VALID 0x2000
164 typedef struct ext2_file *ext2_file_t;
166 #define EXT2_SEEK_SET 0
167 #define EXT2_SEEK_CUR 1
168 #define EXT2_SEEK_END 2
171 * Flags for the ext2_filsys structure and for ext2fs_open()
173 #define EXT2_FLAG_RW 0x01
174 #define EXT2_FLAG_CHANGED 0x02
175 #define EXT2_FLAG_DIRTY 0x04
176 #define EXT2_FLAG_VALID 0x08
177 #define EXT2_FLAG_IB_DIRTY 0x10
178 #define EXT2_FLAG_BB_DIRTY 0x20
179 #define EXT2_FLAG_SWAP_BYTES 0x40
180 #define EXT2_FLAG_SWAP_BYTES_READ 0x80
181 #define EXT2_FLAG_SWAP_BYTES_WRITE 0x100
182 #define EXT2_FLAG_MASTER_SB_ONLY 0x200
183 #define EXT2_FLAG_FORCE 0x400
184 #define EXT2_FLAG_SUPER_ONLY 0x800
185 #define EXT2_FLAG_JOURNAL_DEV_OK 0x1000
186 #define EXT2_FLAG_IMAGE_FILE 0x2000
187 #define EXT2_FLAG_EXCLUSIVE 0x4000
188 #define EXT2_FLAG_SOFTSUPP_FEATURES 0x8000
189 #define EXT2_FLAG_NOFREE_ON_ERROR 0x10000
190 #define EXT2_FLAG_64BITS 0x20000
191 #define EXT2_FLAG_PRINT_PROGRESS 0x40000
192 #define EXT2_FLAG_DIRECT_IO 0x80000
193 #define EXT2_FLAG_SKIP_MMP 0x100000
194 #define EXT2_FLAG_IGNORE_CSUM_ERRORS 0x200000
197 * Special flag in the ext2 inode i_flag field that means that this is
198 * a new inode. (So that ext2_write_inode() can clear extra fields.)
200 #define EXT2_NEW_INODE_FL 0x80000000
203 * Flags for mkjournal
205 #define EXT2_MKJOURNAL_V1_SUPER 0x0000001 /* create V1 superblock (deprecated) */
206 #define EXT2_MKJOURNAL_LAZYINIT 0x0000002 /* don't zero journal inode before use*/
207 #define EXT2_MKJOURNAL_NO_MNT_CHECK 0x0000004 /* don't check mount status */
209 struct opaque_ext2_group_desc;
211 struct struct_ext2_filsys {
216 struct ext2_super_block * super;
217 unsigned int blocksize;
219 dgrp_t group_desc_count;
220 unsigned long desc_blocks;
221 struct opaque_ext2_group_desc * group_desc;
222 unsigned int inode_blocks_per_group;
223 ext2fs_inode_bitmap inode_map;
224 ext2fs_block_bitmap block_map;
225 /* XXX FIXME-64: not 64-bit safe, but not used? */
226 errcode_t (*get_blocks)(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
227 errcode_t (*check_directory)(ext2_filsys fs, ext2_ino_t ino);
228 errcode_t (*write_bitmaps)(ext2_filsys fs);
229 errcode_t (*read_inode)(ext2_filsys fs, ext2_ino_t ino,
230 struct ext2_inode *inode);
231 errcode_t (*write_inode)(ext2_filsys fs, ext2_ino_t ino,
232 struct ext2_inode *inode);
233 ext2_badblocks_list badblocks;
235 __u32 stride; /* for mke2fs */
236 struct ext2_super_block * orig_super;
237 struct ext2_image_hdr * image_header;
240 int cluster_ratio_bits;
241 __u16 default_bitmap_type;
244 * Reserved for future expansion
249 * Reserved for the use of the calling application.
256 struct ext2_inode_cache *icache;
260 * More callback functions
262 errcode_t (*get_alloc_block)(ext2_filsys fs, blk64_t goal,
264 void (*block_alloc_stats)(ext2_filsys fs, blk64_t blk, int inuse);
267 * Buffers for Multiple mount protection(MMP) block.
274 * Time at which e2fsck last updated the MMP block.
276 long mmp_last_written;
278 /* progress operation functions */
279 struct ext2fs_progress_ops *progress_ops;
281 /* Precomputed FS UUID checksum for seeding other checksums */
285 #if EXT2_FLAT_INCLUDES
286 #include "e2_bitops.h"
288 #include <ext2fs/bitops.h>
292 * 64-bit bitmap backend types
294 #define EXT2FS_BMAP64_BITARRAY 1
295 #define EXT2FS_BMAP64_RBTREE 2
296 #define EXT2FS_BMAP64_AUTODIR 3
299 * Return flags for the block iterator functions
301 #define BLOCK_CHANGED 1
302 #define BLOCK_ABORT 2
303 #define BLOCK_ERROR 4
304 #define BLOCK_INLINE_DATA_CHANGED 8
307 * Block interate flags
309 * BLOCK_FLAG_APPEND, or BLOCK_FLAG_HOLE, indicates that the interator
310 * function should be called on blocks where the block number is zero.
311 * This is used by ext2fs_expand_dir() to be able to add a new block
312 * to an inode. It can also be used for programs that want to be able
313 * to deal with files that contain "holes".
315 * BLOCK_FLAG_DEPTH_TRAVERSE indicates that the iterator function for
316 * the indirect, doubly indirect, etc. blocks should be called after
317 * all of the blocks containined in the indirect blocks are processed.
318 * This is useful if you are going to be deallocating blocks from an
321 * BLOCK_FLAG_DATA_ONLY indicates that the iterator function should be
322 * called for data blocks only.
324 * BLOCK_FLAG_READ_ONLY is a promise by the caller that it will not
325 * modify returned block number.
327 * BLOCK_FLAG_NO_LARGE is for internal use only. It informs
328 * ext2fs_block_iterate2 that large files won't be accepted.
330 #define BLOCK_FLAG_APPEND 1
331 #define BLOCK_FLAG_HOLE 1
332 #define BLOCK_FLAG_DEPTH_TRAVERSE 2
333 #define BLOCK_FLAG_DATA_ONLY 4
334 #define BLOCK_FLAG_READ_ONLY 8
336 #define BLOCK_FLAG_NO_LARGE 0x1000
339 * Magic "block count" return values for the block iterator function.
341 #define BLOCK_COUNT_IND (-1)
342 #define BLOCK_COUNT_DIND (-2)
343 #define BLOCK_COUNT_TIND (-3)
344 #define BLOCK_COUNT_TRANSLATOR (-4)
348 * Flags for ext2fs_move_blocks
350 #define EXT2_BMOVE_GET_DBLIST 0x0001
351 #define EXT2_BMOVE_DEBUG 0x0002
355 * Generic (non-filesystem layout specific) extents structure
358 #define EXT2_EXTENT_FLAGS_LEAF 0x0001
359 #define EXT2_EXTENT_FLAGS_UNINIT 0x0002
360 #define EXT2_EXTENT_FLAGS_SECOND_VISIT 0x0004
362 struct ext2fs_extent {
363 blk64_t e_pblk; /* first physical block */
364 blk64_t e_lblk; /* first logical block extent covers */
365 __u32 e_len; /* number of blocks covered by extent */
366 __u32 e_flags; /* extent flags */
369 typedef struct ext2_extent_handle *ext2_extent_handle_t;
370 typedef struct ext2_extent_path *ext2_extent_path_t;
373 * Flags used by ext2fs_extent_get()
375 #define EXT2_EXTENT_CURRENT 0x0000
376 #define EXT2_EXTENT_MOVE_MASK 0x000F
377 #define EXT2_EXTENT_ROOT 0x0001
378 #define EXT2_EXTENT_LAST_LEAF 0x0002
379 #define EXT2_EXTENT_FIRST_SIB 0x0003
380 #define EXT2_EXTENT_LAST_SIB 0x0004
381 #define EXT2_EXTENT_NEXT_SIB 0x0005
382 #define EXT2_EXTENT_PREV_SIB 0x0006
383 #define EXT2_EXTENT_NEXT_LEAF 0x0007
384 #define EXT2_EXTENT_PREV_LEAF 0x0008
385 #define EXT2_EXTENT_NEXT 0x0009
386 #define EXT2_EXTENT_PREV 0x000A
387 #define EXT2_EXTENT_UP 0x000B
388 #define EXT2_EXTENT_DOWN 0x000C
389 #define EXT2_EXTENT_DOWN_AND_LAST 0x000D
392 * Flags used by ext2fs_extent_insert()
394 #define EXT2_EXTENT_INSERT_AFTER 0x0001 /* insert after handle loc'n */
395 #define EXT2_EXTENT_INSERT_NOSPLIT 0x0002 /* insert may not cause split */
398 * Flags used by ext2fs_extent_delete()
400 #define EXT2_EXTENT_DELETE_KEEP_EMPTY 0x001 /* keep node if last extnt gone */
403 * Flags used by ext2fs_extent_set_bmap()
405 #define EXT2_EXTENT_SET_BMAP_UNINIT 0x0001
408 * Data structure returned by ext2fs_extent_get_info()
410 struct ext2_extent_info {
420 __u32 max_uninit_len;
424 * Flags for directory block reading and writing functions
426 #define EXT2_DIRBLOCK_V2_STRUCT 0x0001
429 * Return flags for the directory iterator functions
431 #define DIRENT_CHANGED 1
432 #define DIRENT_ABORT 2
433 #define DIRENT_ERROR 3
436 * Directory iterator flags
439 #define DIRENT_FLAG_INCLUDE_EMPTY 1
440 #define DIRENT_FLAG_INCLUDE_REMOVED 2
441 #define DIRENT_FLAG_INCLUDE_CSUM 4
442 #define DIRENT_FLAG_INCLUDE_INLINE_DATA 8
444 #define DIRENT_DOT_FILE 1
445 #define DIRENT_DOT_DOT_FILE 2
446 #define DIRENT_OTHER_FILE 3
447 #define DIRENT_DELETED_FILE 4
448 #define DIRENT_CHECKSUM 5
451 * Inode scan definitions
453 typedef struct ext2_struct_inode_scan *ext2_inode_scan;
458 #define EXT2_SF_CHK_BADBLOCKS 0x0001
459 #define EXT2_SF_BAD_INODE_BLK 0x0002
460 #define EXT2_SF_BAD_EXTRA_BYTES 0x0004
461 #define EXT2_SF_SKIP_MISSING_ITABLE 0x0008
462 #define EXT2_SF_DO_LAZY 0x0010
465 * ext2fs_check_if_mounted flags
467 #define EXT2_MF_MOUNTED 1
468 #define EXT2_MF_ISROOT 2
469 #define EXT2_MF_READONLY 4
470 #define EXT2_MF_SWAP 8
471 #define EXT2_MF_BUSY 16
474 * Ext2/linux mode flags. We define them here so that we don't need
475 * to depend on the OS's sys/stat.h, since we may be compiling on a
478 #define LINUX_S_IFMT 00170000
479 #define LINUX_S_IFSOCK 0140000
480 #define LINUX_S_IFLNK 0120000
481 #define LINUX_S_IFREG 0100000
482 #define LINUX_S_IFBLK 0060000
483 #define LINUX_S_IFDIR 0040000
484 #define LINUX_S_IFCHR 0020000
485 #define LINUX_S_IFIFO 0010000
486 #define LINUX_S_ISUID 0004000
487 #define LINUX_S_ISGID 0002000
488 #define LINUX_S_ISVTX 0001000
490 #define LINUX_S_IRWXU 00700
491 #define LINUX_S_IRUSR 00400
492 #define LINUX_S_IWUSR 00200
493 #define LINUX_S_IXUSR 00100
495 #define LINUX_S_IRWXG 00070
496 #define LINUX_S_IRGRP 00040
497 #define LINUX_S_IWGRP 00020
498 #define LINUX_S_IXGRP 00010
500 #define LINUX_S_IRWXO 00007
501 #define LINUX_S_IROTH 00004
502 #define LINUX_S_IWOTH 00002
503 #define LINUX_S_IXOTH 00001
505 #define LINUX_S_ISLNK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFLNK)
506 #define LINUX_S_ISREG(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFREG)
507 #define LINUX_S_ISDIR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFDIR)
508 #define LINUX_S_ISCHR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFCHR)
509 #define LINUX_S_ISBLK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFBLK)
510 #define LINUX_S_ISFIFO(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFIFO)
511 #define LINUX_S_ISSOCK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFSOCK)
514 * ext2 size of an inode
516 #define EXT2_I_SIZE(i) ((i)->i_size | ((__u64) (i)->i_size_high << 32))
519 * ext2_icount_t abstraction
521 #define EXT2_ICOUNT_OPT_INCREMENT 0x01
523 typedef struct ext2_icount *ext2_icount_t;
526 * Flags for ext2fs_bmap
528 #define BMAP_ALLOC 0x0001
529 #define BMAP_SET 0x0002
532 * Returned flags from ext2fs_bmap
534 #define BMAP_RET_UNINIT 0x0001
537 * Flags for imager.c functions
539 #define IMAGER_FLAG_INODEMAP 1
540 #define IMAGER_FLAG_SPARSEWRITE 2
543 * For checking structure magic numbers...
546 #define EXT2_CHECK_MAGIC(struct, code) \
547 if ((struct)->magic != (code)) return (code)
551 * For ext2 compression support
553 #define EXT2FS_COMPRESSED_BLKADDR ((blk_t) -1)
554 #define HOLE_BLKADDR(_b) ((_b) == 0 || (_b) == EXT2FS_COMPRESSED_BLKADDR)
557 * Features supported by this version of the library
559 #define EXT2_LIB_FEATURE_COMPAT_SUPP (EXT2_FEATURE_COMPAT_DIR_PREALLOC|\
560 EXT2_FEATURE_COMPAT_IMAGIC_INODES|\
561 EXT3_FEATURE_COMPAT_HAS_JOURNAL|\
562 EXT2_FEATURE_COMPAT_RESIZE_INODE|\
563 EXT2_FEATURE_COMPAT_DIR_INDEX|\
564 EXT2_FEATURE_COMPAT_EXT_ATTR|\
565 EXT4_FEATURE_COMPAT_SPARSE_SUPER2)
567 /* This #ifdef is temporary until compression is fully supported */
568 #ifdef ENABLE_COMPRESSION
569 #ifndef I_KNOW_THAT_COMPRESSION_IS_EXPERIMENTAL
570 /* If the below warning bugs you, then have
571 `CPPFLAGS=-DI_KNOW_THAT_COMPRESSION_IS_EXPERIMENTAL' in your
572 environment at configure time. */
573 #warning "Compression support is experimental"
575 #define EXT2_LIB_INCOMPAT_COMPRESSION EXT2_FEATURE_INCOMPAT_COMPRESSION
577 #define EXT2_LIB_INCOMPAT_COMPRESSION (0)
581 #define EXT4_LIB_INCOMPAT_MMP EXT4_FEATURE_INCOMPAT_MMP
583 #define EXT4_LIB_INCOMPAT_MMP (0)
587 #define EXT4_LIB_RO_COMPAT_QUOTA EXT4_FEATURE_RO_COMPAT_QUOTA
589 #define EXT4_LIB_RO_COMPAT_QUOTA (0)
592 #define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\
593 EXT2_LIB_INCOMPAT_COMPRESSION|\
594 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\
595 EXT2_FEATURE_INCOMPAT_META_BG|\
596 EXT3_FEATURE_INCOMPAT_RECOVER|\
597 EXT3_FEATURE_INCOMPAT_EXTENTS|\
598 EXT4_FEATURE_INCOMPAT_FLEX_BG|\
599 EXT4_LIB_INCOMPAT_MMP|\
600 EXT4_FEATURE_INCOMPAT_64BIT|\
601 EXT4_FEATURE_INCOMPAT_INLINE_DATA)
603 #define EXT2_LIB_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|\
604 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|\
605 EXT2_FEATURE_RO_COMPAT_LARGE_FILE|\
606 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|\
607 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|\
608 EXT4_FEATURE_RO_COMPAT_GDT_CSUM|\
609 EXT4_FEATURE_RO_COMPAT_BIGALLOC|\
610 EXT4_LIB_RO_COMPAT_QUOTA|\
611 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM)
614 * These features are only allowed if EXT2_FLAG_SOFTSUPP_FEATURES is passed
617 #define EXT2_LIB_SOFTSUPP_INCOMPAT (EXT4_FEATURE_INCOMPAT_INLINE_DATA)
618 #define EXT2_LIB_SOFTSUPP_RO_COMPAT (EXT4_FEATURE_RO_COMPAT_REPLICA)
621 /* Translate a block number to a cluster number */
622 #define EXT2FS_CLUSTER_RATIO(fs) (1 << (fs)->cluster_ratio_bits)
623 #define EXT2FS_CLUSTER_MASK(fs) (EXT2FS_CLUSTER_RATIO(fs) - 1)
624 #define EXT2FS_B2C(fs, blk) ((blk) >> (fs)->cluster_ratio_bits)
625 /* Translate a cluster number to a block number */
626 #define EXT2FS_C2B(fs, cluster) ((cluster) << (fs)->cluster_ratio_bits)
627 /* Translate # of blks to # of clusters */
628 #define EXT2FS_NUM_B2C(fs, blks) (((blks) + EXT2FS_CLUSTER_MASK(fs)) >> \
629 (fs)->cluster_ratio_bits)
631 #if defined(HAVE_FSTAT64) && !defined(__OSX_AVAILABLE_BUT_DEPRECATED)
632 typedef struct stat64 ext2fs_struct_stat;
634 typedef struct stat ext2fs_struct_stat;
638 * For ext2fs_close2() and ext2fs_flush2(), this flag allows you to
639 * avoid the fsync call.
641 #define EXT2_FLAG_FLUSH_NO_SYNC 1
644 * Modify and iterate extended attributes
646 struct ext2_xattr_handle;
647 #define XATTR_ABORT 1
648 #define XATTR_CHANGED 2
651 * function prototypes
653 static inline int ext2fs_has_group_desc_csum(ext2_filsys fs)
655 return EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
656 EXT4_FEATURE_RO_COMPAT_GDT_CSUM |
657 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM);
660 /* The LARGE_FILE feature should be set if we have stored files 2GB+ in size */
661 static inline int ext2fs_needs_large_file_feature(unsigned long long file_size)
663 return file_size >= 0x80000000ULL;
667 extern errcode_t ext2fs_new_inode(ext2_filsys fs, ext2_ino_t dir, int mode,
668 ext2fs_inode_bitmap map, ext2_ino_t *ret);
669 extern errcode_t ext2fs_new_block(ext2_filsys fs, blk_t goal,
670 ext2fs_block_bitmap map, blk_t *ret);
671 extern errcode_t ext2fs_new_block2(ext2_filsys fs, blk64_t goal,
672 ext2fs_block_bitmap map, blk64_t *ret);
673 extern errcode_t ext2fs_get_free_blocks(ext2_filsys fs, blk_t start,
674 blk_t finish, int num,
675 ext2fs_block_bitmap map,
677 extern errcode_t ext2fs_get_free_blocks2(ext2_filsys fs, blk64_t start,
678 blk64_t finish, int num,
679 ext2fs_block_bitmap map,
681 extern errcode_t ext2fs_alloc_block(ext2_filsys fs, blk_t goal,
682 char *block_buf, blk_t *ret);
683 extern errcode_t ext2fs_alloc_block2(ext2_filsys fs, blk64_t goal,
684 char *block_buf, blk64_t *ret);
685 extern void ext2fs_set_alloc_block_callback(ext2_filsys fs,
686 errcode_t (*func)(ext2_filsys fs,
689 errcode_t (**old)(ext2_filsys fs,
694 extern int ext2fs_reserve_super_and_bgd(ext2_filsys fs,
696 ext2fs_block_bitmap bmap);
697 extern void ext2fs_set_block_alloc_stats_callback(ext2_filsys fs,
698 void (*func)(ext2_filsys fs,
701 void (**old)(ext2_filsys fs,
706 void ext2fs_inode_alloc_stats(ext2_filsys fs, ext2_ino_t ino, int inuse);
707 void ext2fs_inode_alloc_stats2(ext2_filsys fs, ext2_ino_t ino,
708 int inuse, int isdir);
709 void ext2fs_block_alloc_stats(ext2_filsys fs, blk_t blk, int inuse);
710 void ext2fs_block_alloc_stats2(ext2_filsys fs, blk64_t blk, int inuse);
711 void ext2fs_block_alloc_stats_range(ext2_filsys fs, blk64_t blk,
712 blk_t num, int inuse);
715 extern errcode_t ext2fs_allocate_tables(ext2_filsys fs);
716 extern errcode_t ext2fs_allocate_group_table(ext2_filsys fs, dgrp_t group,
717 ext2fs_block_bitmap bmap);
720 extern errcode_t ext2fs_u32_list_create(ext2_u32_list *ret, int size);
721 extern errcode_t ext2fs_u32_list_add(ext2_u32_list bb, __u32 blk);
722 extern int ext2fs_u32_list_find(ext2_u32_list bb, __u32 blk);
723 extern int ext2fs_u32_list_test(ext2_u32_list bb, blk_t blk);
724 extern errcode_t ext2fs_u32_list_iterate_begin(ext2_u32_list bb,
725 ext2_u32_iterate *ret);
726 extern int ext2fs_u32_list_iterate(ext2_u32_iterate iter, blk_t *blk);
727 extern void ext2fs_u32_list_iterate_end(ext2_u32_iterate iter);
728 extern errcode_t ext2fs_u32_copy(ext2_u32_list src, ext2_u32_list *dest);
729 extern int ext2fs_u32_list_equal(ext2_u32_list bb1, ext2_u32_list bb2);
731 extern errcode_t ext2fs_badblocks_list_create(ext2_badblocks_list *ret,
733 extern errcode_t ext2fs_badblocks_list_add(ext2_badblocks_list bb,
735 extern int ext2fs_badblocks_list_test(ext2_badblocks_list bb,
737 extern int ext2fs_u32_list_del(ext2_u32_list bb, __u32 blk);
738 extern void ext2fs_badblocks_list_del(ext2_u32_list bb, __u32 blk);
740 ext2fs_badblocks_list_iterate_begin(ext2_badblocks_list bb,
741 ext2_badblocks_iterate *ret);
742 extern int ext2fs_badblocks_list_iterate(ext2_badblocks_iterate iter,
744 extern void ext2fs_badblocks_list_iterate_end(ext2_badblocks_iterate iter);
745 extern errcode_t ext2fs_badblocks_copy(ext2_badblocks_list src,
746 ext2_badblocks_list *dest);
747 extern int ext2fs_badblocks_equal(ext2_badblocks_list bb1,
748 ext2_badblocks_list bb2);
749 extern int ext2fs_u32_list_count(ext2_u32_list bb);
752 extern errcode_t badblocks_list_create(badblocks_list *ret, int size);
753 extern errcode_t badblocks_list_add(badblocks_list bb, blk_t blk);
754 extern int badblocks_list_test(badblocks_list bb, blk_t blk);
755 extern errcode_t badblocks_list_iterate_begin(badblocks_list bb,
756 badblocks_iterate *ret);
757 extern int badblocks_list_iterate(badblocks_iterate iter, blk_t *blk);
758 extern void badblocks_list_iterate_end(badblocks_iterate iter);
759 extern void badblocks_list_free(badblocks_list bb);
762 extern errcode_t ext2fs_update_bb_inode(ext2_filsys fs,
763 ext2_badblocks_list bb_list);
766 extern void ext2fs_free_block_bitmap(ext2fs_block_bitmap bitmap);
767 extern void ext2fs_free_inode_bitmap(ext2fs_inode_bitmap bitmap);
768 extern errcode_t ext2fs_copy_bitmap(ext2fs_generic_bitmap src,
769 ext2fs_generic_bitmap *dest);
770 extern errcode_t ext2fs_write_inode_bitmap(ext2_filsys fs);
771 extern errcode_t ext2fs_write_block_bitmap (ext2_filsys fs);
772 extern errcode_t ext2fs_read_inode_bitmap (ext2_filsys fs);
773 extern errcode_t ext2fs_read_block_bitmap(ext2_filsys fs);
774 extern errcode_t ext2fs_allocate_block_bitmap(ext2_filsys fs,
776 ext2fs_block_bitmap *ret);
777 extern errcode_t ext2fs_allocate_subcluster_bitmap(ext2_filsys fs,
779 ext2fs_block_bitmap *ret);
780 extern int ext2fs_get_bitmap_granularity(ext2fs_block_bitmap bitmap);
781 extern errcode_t ext2fs_allocate_inode_bitmap(ext2_filsys fs,
783 ext2fs_inode_bitmap *ret);
784 extern errcode_t ext2fs_fudge_inode_bitmap_end(ext2fs_inode_bitmap bitmap,
785 ext2_ino_t end, ext2_ino_t *oend);
786 extern errcode_t ext2fs_fudge_block_bitmap_end(ext2fs_block_bitmap bitmap,
787 blk_t end, blk_t *oend);
788 extern errcode_t ext2fs_fudge_block_bitmap_end2(ext2fs_block_bitmap bitmap,
789 blk64_t end, blk64_t *oend);
790 extern void ext2fs_clear_inode_bitmap(ext2fs_inode_bitmap bitmap);
791 extern void ext2fs_clear_block_bitmap(ext2fs_block_bitmap bitmap);
792 extern errcode_t ext2fs_read_bitmaps(ext2_filsys fs);
793 extern errcode_t ext2fs_write_bitmaps(ext2_filsys fs);
794 extern errcode_t ext2fs_resize_inode_bitmap(__u32 new_end, __u32 new_real_end,
795 ext2fs_inode_bitmap bmap);
796 extern errcode_t ext2fs_resize_inode_bitmap2(__u64 new_end,
798 ext2fs_inode_bitmap bmap);
799 extern errcode_t ext2fs_resize_block_bitmap(__u32 new_end, __u32 new_real_end,
800 ext2fs_block_bitmap bmap);
801 extern errcode_t ext2fs_resize_block_bitmap2(__u64 new_end,
803 ext2fs_block_bitmap bmap);
804 extern errcode_t ext2fs_compare_block_bitmap(ext2fs_block_bitmap bm1,
805 ext2fs_block_bitmap bm2);
806 extern errcode_t ext2fs_compare_inode_bitmap(ext2fs_inode_bitmap bm1,
807 ext2fs_inode_bitmap bm2);
808 extern errcode_t ext2fs_set_inode_bitmap_range(ext2fs_inode_bitmap bmap,
809 ext2_ino_t start, unsigned int num,
811 extern errcode_t ext2fs_set_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
812 __u64 start, size_t num,
814 extern errcode_t ext2fs_get_inode_bitmap_range(ext2fs_inode_bitmap bmap,
815 ext2_ino_t start, unsigned int num,
817 extern errcode_t ext2fs_get_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
818 __u64 start, size_t num,
820 extern errcode_t ext2fs_set_block_bitmap_range(ext2fs_block_bitmap bmap,
821 blk_t start, unsigned int num,
823 extern errcode_t ext2fs_set_block_bitmap_range2(ext2fs_block_bitmap bmap,
824 blk64_t start, size_t num,
826 extern errcode_t ext2fs_get_block_bitmap_range(ext2fs_block_bitmap bmap,
827 blk_t start, unsigned int num,
829 extern errcode_t ext2fs_get_block_bitmap_range2(ext2fs_block_bitmap bmap,
830 blk64_t start, size_t num,
834 extern __u32 ext2fs_inode_bitmap_checksum(ext2_filsys fs, dgrp_t group);
835 extern __u32 ext2fs_block_bitmap_checksum(ext2_filsys fs, dgrp_t group);
836 extern dgrp_t ext2fs_group_of_blk2(ext2_filsys fs, blk64_t);
837 extern blk64_t ext2fs_group_first_block2(ext2_filsys fs, dgrp_t group);
838 extern blk64_t ext2fs_group_last_block2(ext2_filsys fs, dgrp_t group);
839 extern int ext2fs_group_blocks_count(ext2_filsys fs, dgrp_t group);
840 extern blk64_t ext2fs_inode_data_blocks2(ext2_filsys fs,
841 struct ext2_inode *inode);
842 extern blk64_t ext2fs_inode_i_blocks(ext2_filsys fs,
843 struct ext2_inode *inode);
844 extern blk64_t ext2fs_blocks_count(struct ext2_super_block *super);
845 extern void ext2fs_blocks_count_set(struct ext2_super_block *super,
847 extern void ext2fs_blocks_count_add(struct ext2_super_block *super,
849 extern blk64_t ext2fs_r_blocks_count(struct ext2_super_block *super);
850 extern void ext2fs_r_blocks_count_set(struct ext2_super_block *super,
852 extern void ext2fs_r_blocks_count_add(struct ext2_super_block *super,
854 extern blk64_t ext2fs_free_blocks_count(struct ext2_super_block *super);
855 extern void ext2fs_free_blocks_count_set(struct ext2_super_block *super,
857 extern void ext2fs_free_blocks_count_add(struct ext2_super_block *super,
859 /* Block group descriptor accessor functions */
860 extern struct ext2_group_desc *ext2fs_group_desc(ext2_filsys fs,
861 struct opaque_ext2_group_desc *gdp,
863 extern blk64_t ext2fs_block_bitmap_csum(ext2_filsys fs, dgrp_t group);
864 extern blk64_t ext2fs_block_bitmap_loc(ext2_filsys fs, dgrp_t group);
865 extern void ext2fs_block_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
867 extern __u32 ext2fs_inode_bitmap_csum(ext2_filsys fs, dgrp_t group);
868 extern blk64_t ext2fs_inode_bitmap_loc(ext2_filsys fs, dgrp_t group);
869 extern void ext2fs_inode_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
871 extern blk64_t ext2fs_inode_table_loc(ext2_filsys fs, dgrp_t group);
872 extern void ext2fs_inode_table_loc_set(ext2_filsys fs, dgrp_t group,
874 extern __u32 ext2fs_bg_free_blocks_count(ext2_filsys fs, dgrp_t group);
875 extern void ext2fs_bg_free_blocks_count_set(ext2_filsys fs, dgrp_t group,
877 extern __u32 ext2fs_bg_free_inodes_count(ext2_filsys fs, dgrp_t group);
878 extern void ext2fs_bg_free_inodes_count_set(ext2_filsys fs, dgrp_t group,
880 extern __u32 ext2fs_bg_used_dirs_count(ext2_filsys fs, dgrp_t group);
881 extern void ext2fs_bg_used_dirs_count_set(ext2_filsys fs, dgrp_t group,
883 extern __u32 ext2fs_bg_itable_unused(ext2_filsys fs, dgrp_t group);
884 extern void ext2fs_bg_itable_unused_set(ext2_filsys fs, dgrp_t group,
886 extern __u16 ext2fs_bg_flags(ext2_filsys fs, dgrp_t group);
887 extern void ext2fs_bg_flags_zap(ext2_filsys fs, dgrp_t group);
888 extern int ext2fs_bg_flags_test(ext2_filsys fs, dgrp_t group, __u16 bg_flag);
889 extern void ext2fs_bg_flags_set(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
890 extern void ext2fs_bg_flags_clear(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
891 extern __u16 ext2fs_bg_checksum(ext2_filsys fs, dgrp_t group);
892 extern void ext2fs_bg_checksum_set(ext2_filsys fs, dgrp_t group, __u16 checksum);
893 extern blk64_t ext2fs_file_acl_block(ext2_filsys fs,
894 const struct ext2_inode *inode);
895 extern void ext2fs_file_acl_block_set(ext2_filsys fs,
896 struct ext2_inode *inode, blk64_t blk);
899 extern errcode_t ext2fs_block_iterate(ext2_filsys fs,
903 int (*func)(ext2_filsys fs,
908 errcode_t ext2fs_block_iterate2(ext2_filsys fs,
912 int (*func)(ext2_filsys fs,
914 e2_blkcnt_t blockcnt,
919 errcode_t ext2fs_block_iterate3(ext2_filsys fs,
923 int (*func)(ext2_filsys fs,
925 e2_blkcnt_t blockcnt,
932 extern errcode_t ext2fs_bmap(ext2_filsys fs, ext2_ino_t ino,
933 struct ext2_inode *inode,
934 char *block_buf, int bmap_flags,
935 blk_t block, blk_t *phys_blk);
936 extern errcode_t ext2fs_bmap2(ext2_filsys fs, ext2_ino_t ino,
937 struct ext2_inode *inode,
938 char *block_buf, int bmap_flags, blk64_t block,
939 int *ret_flags, blk64_t *phys_blk);
940 errcode_t ext2fs_map_cluster_block(ext2_filsys fs, ext2_ino_t ino,
941 struct ext2_inode *inode, blk64_t lblk,
946 extern errcode_t ext2fs_move_blocks(ext2_filsys fs,
947 ext2fs_block_bitmap reserve,
948 ext2fs_block_bitmap alloc_map,
953 extern errcode_t ext2fs_check_desc(ext2_filsys fs);
956 extern errcode_t ext2fs_close(ext2_filsys fs);
957 extern errcode_t ext2fs_close2(ext2_filsys fs, int flags);
958 extern errcode_t ext2fs_close_free(ext2_filsys *fs);
959 extern errcode_t ext2fs_flush(ext2_filsys fs);
960 extern errcode_t ext2fs_flush2(ext2_filsys fs, int flags);
961 extern int ext2fs_bg_has_super(ext2_filsys fs, dgrp_t group_block);
962 extern errcode_t ext2fs_super_and_bgd_loc2(ext2_filsys fs,
964 blk64_t *ret_super_blk,
965 blk64_t *ret_old_desc_blk,
966 blk64_t *ret_new_desc_blk,
967 blk_t *ret_used_blks);
968 extern int ext2fs_super_and_bgd_loc(ext2_filsys fs,
970 blk_t *ret_super_blk,
971 blk_t *ret_old_desc_blk,
972 blk_t *ret_new_desc_blk,
974 extern void ext2fs_update_dynamic_rev(ext2_filsys fs);
977 extern __u32 ext2fs_crc32_be(__u32 crc, unsigned char const *p, size_t len);
978 extern __u32 ext2fs_crc32c_le(__u32 crc, unsigned char const *p, size_t len);
981 extern errcode_t ext2fs_mmp_csum_set(ext2_filsys fs, struct mmp_struct *mmp);
982 extern int ext2fs_mmp_csum_verify(ext2_filsys, struct mmp_struct *mmp);
983 extern int ext2fs_verify_csum_type(ext2_filsys fs, struct ext2_super_block *sb);
984 extern errcode_t ext2fs_superblock_csum_set(ext2_filsys fs,
985 struct ext2_super_block *sb);
986 extern int ext2fs_superblock_csum_verify(ext2_filsys fs,
987 struct ext2_super_block *sb);
988 extern errcode_t ext2fs_ext_attr_block_csum_set(ext2_filsys fs,
989 ext2_ino_t inum, blk64_t block,
990 struct ext2_ext_attr_header *hdr);
991 extern int ext2fs_ext_attr_block_csum_verify(ext2_filsys fs, ext2_ino_t inum,
993 struct ext2_ext_attr_header *hdr);
994 #define EXT2_DIRENT_TAIL(block, blocksize) \
995 ((struct ext2_dir_entry_tail *)(((char *)(block)) + \
996 (blocksize) - sizeof(struct ext2_dir_entry_tail)))
998 extern void ext2fs_initialize_dirent_tail(ext2_filsys fs,
999 struct ext2_dir_entry_tail *t);
1000 extern int ext2fs_dirent_has_tail(ext2_filsys fs,
1001 struct ext2_dir_entry *dirent);
1002 extern int ext2fs_dirent_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1003 struct ext2_dir_entry *dirent);
1004 extern int ext2fs_dir_block_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1005 struct ext2_dir_entry *dirent);
1006 extern errcode_t ext2fs_dir_block_csum_set(ext2_filsys fs, ext2_ino_t inum,
1007 struct ext2_dir_entry *dirent);
1008 extern errcode_t ext2fs_get_dx_countlimit(ext2_filsys fs,
1009 struct ext2_dir_entry *dirent,
1010 struct ext2_dx_countlimit **cc,
1012 extern errcode_t ext2fs_extent_block_csum_set(ext2_filsys fs,
1014 struct ext3_extent_header *eh);
1015 extern int ext2fs_extent_block_csum_verify(ext2_filsys fs,
1017 struct ext3_extent_header *eh);
1018 extern errcode_t ext2fs_block_bitmap_csum_set(ext2_filsys fs, dgrp_t group,
1019 char *bitmap, int size);
1020 extern int ext2fs_block_bitmap_csum_verify(ext2_filsys fs, dgrp_t group,
1021 char *bitmap, int size);
1022 extern errcode_t ext2fs_inode_bitmap_csum_set(ext2_filsys fs, dgrp_t group,
1023 char *bitmap, int size);
1024 extern int ext2fs_inode_bitmap_csum_verify(ext2_filsys fs, dgrp_t group,
1025 char *bitmap, int size);
1026 extern errcode_t ext2fs_inode_csum_set(ext2_filsys fs, ext2_ino_t inum,
1027 struct ext2_inode_large *inode);
1028 extern int ext2fs_inode_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1029 struct ext2_inode_large *inode);
1030 extern void ext2fs_group_desc_csum_set(ext2_filsys fs, dgrp_t group);
1031 extern int ext2fs_group_desc_csum_verify(ext2_filsys fs, dgrp_t group);
1032 extern errcode_t ext2fs_set_gdt_csum(ext2_filsys fs);
1033 extern __u16 ext2fs_group_desc_csum(ext2_filsys fs, dgrp_t group);
1036 extern errcode_t ext2fs_init_dblist(ext2_filsys fs, ext2_dblist *ret_dblist);
1037 extern errcode_t ext2fs_add_dir_block(ext2_dblist dblist, ext2_ino_t ino,
1038 blk_t blk, int blockcnt);
1039 extern errcode_t ext2fs_add_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
1040 blk64_t blk, e2_blkcnt_t blockcnt);
1041 extern void ext2fs_dblist_sort(ext2_dblist dblist,
1042 EXT2_QSORT_TYPE (*sortfunc)(const void *,
1044 extern void ext2fs_dblist_sort2(ext2_dblist dblist,
1045 EXT2_QSORT_TYPE (*sortfunc)(const void *,
1047 extern errcode_t ext2fs_dblist_iterate(ext2_dblist dblist,
1048 int (*func)(ext2_filsys fs, struct ext2_db_entry *db_info,
1051 extern errcode_t ext2fs_dblist_iterate2(ext2_dblist dblist,
1052 int (*func)(ext2_filsys fs, struct ext2_db_entry2 *db_info,
1055 extern errcode_t ext2fs_set_dir_block(ext2_dblist dblist, ext2_ino_t ino,
1056 blk_t blk, int blockcnt);
1057 extern errcode_t ext2fs_set_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
1058 blk64_t blk, e2_blkcnt_t blockcnt);
1059 extern errcode_t ext2fs_copy_dblist(ext2_dblist src,
1061 extern int ext2fs_dblist_count(ext2_dblist dblist);
1062 extern blk64_t ext2fs_dblist_count2(ext2_dblist dblist);
1063 extern errcode_t ext2fs_dblist_get_last(ext2_dblist dblist,
1064 struct ext2_db_entry **entry);
1065 extern errcode_t ext2fs_dblist_get_last2(ext2_dblist dblist,
1066 struct ext2_db_entry2 **entry);
1067 extern errcode_t ext2fs_dblist_drop_last(ext2_dblist dblist);
1071 ext2fs_dblist_dir_iterate(ext2_dblist dblist,
1074 int (*func)(ext2_ino_t dir,
1076 struct ext2_dir_entry *dirent,
1084 extern errcode_t ext2fs_read_dir_block(ext2_filsys fs, blk_t block,
1086 extern errcode_t ext2fs_read_dir_block2(ext2_filsys fs, blk_t block,
1087 void *buf, int flags);
1088 extern errcode_t ext2fs_read_dir_block3(ext2_filsys fs, blk64_t block,
1089 void *buf, int flags);
1090 extern errcode_t ext2fs_read_dir_block4(ext2_filsys fs, blk64_t block,
1091 void *buf, int flags, ext2_ino_t ino);
1092 extern errcode_t ext2fs_write_dir_block(ext2_filsys fs, blk_t block,
1094 extern errcode_t ext2fs_write_dir_block2(ext2_filsys fs, blk_t block,
1095 void *buf, int flags);
1096 extern errcode_t ext2fs_write_dir_block3(ext2_filsys fs, blk64_t block,
1097 void *buf, int flags);
1098 extern errcode_t ext2fs_write_dir_block4(ext2_filsys fs, blk64_t block,
1099 void *buf, int flags, ext2_ino_t ino);
1102 extern errcode_t ext2fs_dirhash(int version, const char *name, int len,
1104 ext2_dirhash_t *ret_hash,
1105 ext2_dirhash_t *ret_minor_hash);
1109 extern errcode_t ext2fs_get_rec_len(ext2_filsys fs,
1110 struct ext2_dir_entry *dirent,
1111 unsigned int *rec_len);
1112 extern errcode_t ext2fs_set_rec_len(ext2_filsys fs,
1114 struct ext2_dir_entry *dirent);
1115 extern errcode_t ext2fs_dir_iterate(ext2_filsys fs,
1119 int (*func)(struct ext2_dir_entry *dirent,
1125 extern errcode_t ext2fs_dir_iterate2(ext2_filsys fs,
1129 int (*func)(ext2_ino_t dir,
1131 struct ext2_dir_entry *dirent,
1139 extern errcode_t ext2fs_dup_handle(ext2_filsys src, ext2_filsys *dest);
1142 extern errcode_t ext2fs_expand_dir(ext2_filsys fs, ext2_ino_t dir);
1145 extern __u32 ext2fs_ext_attr_hash_entry(struct ext2_ext_attr_entry *entry,
1147 extern errcode_t ext2fs_read_ext_attr(ext2_filsys fs, blk_t block, void *buf);
1148 extern errcode_t ext2fs_read_ext_attr2(ext2_filsys fs, blk64_t block,
1150 extern errcode_t ext2fs_read_ext_attr3(ext2_filsys fs, blk64_t block,
1151 void *buf, ext2_ino_t inum);
1152 extern errcode_t ext2fs_write_ext_attr(ext2_filsys fs, blk_t block,
1154 extern errcode_t ext2fs_write_ext_attr2(ext2_filsys fs, blk64_t block,
1156 extern errcode_t ext2fs_write_ext_attr3(ext2_filsys fs, blk64_t block,
1157 void *buf, ext2_ino_t inum);
1158 extern errcode_t ext2fs_adjust_ea_refcount(ext2_filsys fs, blk_t blk,
1160 int adjust, __u32 *newcount);
1161 extern errcode_t ext2fs_adjust_ea_refcount2(ext2_filsys fs, blk64_t blk,
1163 int adjust, __u32 *newcount);
1164 extern errcode_t ext2fs_adjust_ea_refcount3(ext2_filsys fs, blk64_t blk,
1166 int adjust, __u32 *newcount,
1168 errcode_t ext2fs_xattrs_write(struct ext2_xattr_handle *handle);
1169 errcode_t ext2fs_xattrs_read(struct ext2_xattr_handle *handle);
1170 errcode_t ext2fs_xattrs_iterate(struct ext2_xattr_handle *h,
1171 int (*func)(char *name, char *value,
1172 size_t value_len, void *data),
1174 errcode_t ext2fs_xattr_get(struct ext2_xattr_handle *h, const char *key,
1175 void **value, size_t *value_len);
1176 errcode_t ext2fs_xattr_set(struct ext2_xattr_handle *handle,
1180 errcode_t ext2fs_xattr_remove(struct ext2_xattr_handle *handle,
1182 errcode_t ext2fs_xattrs_open(ext2_filsys fs, ext2_ino_t ino,
1183 struct ext2_xattr_handle **handle);
1184 errcode_t ext2fs_xattrs_close(struct ext2_xattr_handle **handle);
1185 errcode_t ext2fs_free_ext_attr(ext2_filsys fs, ext2_ino_t ino,
1186 struct ext2_inode_large *inode);
1187 errcode_t ext2fs_xattrs_count(struct ext2_xattr_handle *handle, size_t *count);
1188 errcode_t ext2fs_xattr_inode_max_size(ext2_filsys fs, ext2_ino_t ino,
1192 extern errcode_t ext2fs_extent_header_verify(void *ptr, int size);
1193 extern errcode_t ext2fs_extent_open(ext2_filsys fs, ext2_ino_t ino,
1194 ext2_extent_handle_t *handle);
1195 extern errcode_t ext2fs_extent_open2(ext2_filsys fs, ext2_ino_t ino,
1196 struct ext2_inode *inode,
1197 ext2_extent_handle_t *ret_handle);
1198 extern void ext2fs_extent_free(ext2_extent_handle_t handle);
1199 extern errcode_t ext2fs_extent_get(ext2_extent_handle_t handle,
1200 int flags, struct ext2fs_extent *extent);
1201 extern errcode_t ext2fs_extent_node_split(ext2_extent_handle_t handle);
1202 extern errcode_t ext2fs_extent_replace(ext2_extent_handle_t handle, int flags,
1203 struct ext2fs_extent *extent);
1204 extern errcode_t ext2fs_extent_insert(ext2_extent_handle_t handle, int flags,
1205 struct ext2fs_extent *extent);
1206 extern errcode_t ext2fs_extent_set_bmap(ext2_extent_handle_t handle,
1207 blk64_t logical, blk64_t physical,
1209 extern errcode_t ext2fs_extent_delete(ext2_extent_handle_t handle, int flags);
1210 extern errcode_t ext2fs_extent_get_info(ext2_extent_handle_t handle,
1211 struct ext2_extent_info *info);
1212 extern errcode_t ext2fs_extent_goto(ext2_extent_handle_t handle,
1214 extern errcode_t ext2fs_extent_goto2(ext2_extent_handle_t handle,
1215 int leaf_level, blk64_t blk);
1216 extern errcode_t ext2fs_extent_fix_parents(ext2_extent_handle_t handle);
1219 extern errcode_t ext2fs_file_open2(ext2_filsys fs, ext2_ino_t ino,
1220 struct ext2_inode *inode,
1221 int flags, ext2_file_t *ret);
1222 extern errcode_t ext2fs_file_open(ext2_filsys fs, ext2_ino_t ino,
1223 int flags, ext2_file_t *ret);
1224 extern ext2_filsys ext2fs_file_get_fs(ext2_file_t file);
1225 struct ext2_inode *ext2fs_file_get_inode(ext2_file_t file);
1226 extern ext2_ino_t ext2fs_file_get_inode_num(ext2_file_t file);
1227 extern errcode_t ext2fs_file_close(ext2_file_t file);
1228 extern errcode_t ext2fs_file_flush(ext2_file_t file);
1229 extern errcode_t ext2fs_file_read(ext2_file_t file, void *buf,
1230 unsigned int wanted, unsigned int *got);
1231 extern errcode_t ext2fs_file_write(ext2_file_t file, const void *buf,
1232 unsigned int nbytes, unsigned int *written);
1233 extern errcode_t ext2fs_file_llseek(ext2_file_t file, __u64 offset,
1234 int whence, __u64 *ret_pos);
1235 extern errcode_t ext2fs_file_lseek(ext2_file_t file, ext2_off_t offset,
1236 int whence, ext2_off_t *ret_pos);
1237 errcode_t ext2fs_file_get_lsize(ext2_file_t file, __u64 *ret_size);
1238 extern ext2_off_t ext2fs_file_get_size(ext2_file_t file);
1239 extern errcode_t ext2fs_file_set_size(ext2_file_t file, ext2_off_t size);
1240 extern errcode_t ext2fs_file_set_size2(ext2_file_t file, ext2_off64_t size);
1243 extern char *ext2fs_find_block_device(dev_t device);
1246 extern errcode_t ext2fs_sync_device(int fd, int flushb);
1249 extern void ext2fs_free(ext2_filsys fs);
1250 extern void ext2fs_free_dblist(ext2_dblist dblist);
1251 extern void ext2fs_badblocks_list_free(ext2_badblocks_list bb);
1252 extern void ext2fs_u32_list_free(ext2_u32_list bb);
1255 extern void ext2fs_free_generic_bitmap(ext2fs_inode_bitmap bitmap);
1256 extern errcode_t ext2fs_make_generic_bitmap(errcode_t magic, ext2_filsys fs,
1257 __u32 start, __u32 end,
1259 const char *descr, char *init_map,
1260 ext2fs_generic_bitmap *ret);
1261 extern errcode_t ext2fs_allocate_generic_bitmap(__u32 start,
1265 ext2fs_generic_bitmap *ret);
1266 extern errcode_t ext2fs_copy_generic_bitmap(ext2fs_generic_bitmap src,
1267 ext2fs_generic_bitmap *dest);
1268 extern void ext2fs_clear_generic_bitmap(ext2fs_generic_bitmap bitmap);
1269 extern errcode_t ext2fs_fudge_generic_bitmap_end(ext2fs_inode_bitmap bitmap,
1274 extern void ext2fs_set_generic_bitmap_padding(ext2fs_generic_bitmap map);
1275 extern errcode_t ext2fs_resize_generic_bitmap(errcode_t magic,
1278 ext2fs_generic_bitmap bmap);
1279 extern errcode_t ext2fs_compare_generic_bitmap(errcode_t magic, errcode_t neq,
1280 ext2fs_generic_bitmap bm1,
1281 ext2fs_generic_bitmap bm2);
1282 extern errcode_t ext2fs_get_generic_bitmap_range(ext2fs_generic_bitmap bmap,
1284 __u32 start, __u32 num,
1286 extern errcode_t ext2fs_set_generic_bitmap_range(ext2fs_generic_bitmap bmap,
1288 __u32 start, __u32 num,
1290 extern errcode_t ext2fs_find_first_zero_generic_bitmap(ext2fs_generic_bitmap bitmap,
1291 __u32 start, __u32 end,
1293 extern errcode_t ext2fs_find_first_set_generic_bitmap(ext2fs_generic_bitmap bitmap,
1294 __u32 start, __u32 end,
1297 /* gen_bitmap64.c */
1298 void ext2fs_free_generic_bmap(ext2fs_generic_bitmap bmap);
1299 errcode_t ext2fs_alloc_generic_bmap(ext2_filsys fs, errcode_t magic,
1300 int type, __u64 start, __u64 end,
1303 ext2fs_generic_bitmap *ret);
1304 errcode_t ext2fs_copy_generic_bmap(ext2fs_generic_bitmap src,
1305 ext2fs_generic_bitmap *dest);
1306 void ext2fs_clear_generic_bmap(ext2fs_generic_bitmap bitmap);
1307 errcode_t ext2fs_fudge_generic_bmap_end(ext2fs_generic_bitmap bitmap,
1309 __u64 end, __u64 *oend);
1310 void ext2fs_set_generic_bmap_padding(ext2fs_generic_bitmap bmap);
1311 errcode_t ext2fs_resize_generic_bmap(ext2fs_generic_bitmap bmap,
1313 __u64 new_real_end);
1314 errcode_t ext2fs_compare_generic_bmap(errcode_t neq,
1315 ext2fs_generic_bitmap bm1,
1316 ext2fs_generic_bitmap bm2);
1317 errcode_t ext2fs_get_generic_bmap_range(ext2fs_generic_bitmap bmap,
1318 __u64 start, unsigned int num,
1320 errcode_t ext2fs_set_generic_bmap_range(ext2fs_generic_bitmap bmap,
1321 __u64 start, unsigned int num,
1323 errcode_t ext2fs_convert_subcluster_bitmap(ext2_filsys fs,
1324 ext2fs_block_bitmap *bitmap);
1326 /* get_num_dirs.c */
1327 extern errcode_t ext2fs_get_num_dirs(ext2_filsys fs, ext2_ino_t *ret_num_dirs);
1330 extern errcode_t ext2fs_get_device_size(const char *file, int blocksize,
1332 extern errcode_t ext2fs_get_device_size2(const char *file, int blocksize,
1333 blk64_t *retblocks);
1336 extern int ext2fs_get_dio_alignment(int fd);
1337 errcode_t ext2fs_get_device_sectsize(const char *file, int *sectsize);
1338 errcode_t ext2fs_get_device_phys_sectsize(const char *file, int *sectsize);
1341 errcode_t ext2fs_iblk_add_blocks(ext2_filsys fs, struct ext2_inode *inode,
1342 blk64_t num_blocks);
1343 errcode_t ext2fs_iblk_sub_blocks(ext2_filsys fs, struct ext2_inode *inode,
1344 blk64_t num_blocks);
1345 errcode_t ext2fs_iblk_set(ext2_filsys fs, struct ext2_inode *inode, blk64_t b);
1348 extern errcode_t ext2fs_image_inode_write(ext2_filsys fs, int fd, int flags);
1349 extern errcode_t ext2fs_image_inode_read(ext2_filsys fs, int fd, int flags);
1350 extern errcode_t ext2fs_image_super_write(ext2_filsys fs, int fd, int flags);
1351 extern errcode_t ext2fs_image_super_read(ext2_filsys fs, int fd, int flags);
1352 extern errcode_t ext2fs_image_bitmap_write(ext2_filsys fs, int fd, int flags);
1353 extern errcode_t ext2fs_image_bitmap_read(ext2_filsys fs, int fd, int flags);
1356 errcode_t ext2fs_read_ind_block(ext2_filsys fs, blk_t blk, void *buf);
1357 errcode_t ext2fs_write_ind_block(ext2_filsys fs, blk_t blk, void *buf);
1360 extern errcode_t ext2fs_initialize(const char *name, int flags,
1361 struct ext2_super_block *param,
1362 io_manager manager, ext2_filsys *ret_fs);
1365 extern void ext2fs_free_icount(ext2_icount_t icount);
1366 extern errcode_t ext2fs_create_icount_tdb(ext2_filsys fs, char *tdb_dir,
1367 int flags, ext2_icount_t *ret);
1368 extern errcode_t ext2fs_create_icount2(ext2_filsys fs, int flags,
1370 ext2_icount_t hint, ext2_icount_t *ret);
1371 extern errcode_t ext2fs_create_icount(ext2_filsys fs, int flags,
1373 ext2_icount_t *ret);
1374 extern errcode_t ext2fs_icount_fetch(ext2_icount_t icount, ext2_ino_t ino,
1376 extern errcode_t ext2fs_icount_increment(ext2_icount_t icount, ext2_ino_t ino,
1378 extern errcode_t ext2fs_icount_decrement(ext2_icount_t icount, ext2_ino_t ino,
1380 extern errcode_t ext2fs_icount_store(ext2_icount_t icount, ext2_ino_t ino,
1382 extern ext2_ino_t ext2fs_get_icount_size(ext2_icount_t icount);
1383 errcode_t ext2fs_icount_validate(ext2_icount_t icount, FILE *);
1387 extern errcode_t ext2fs_get_memalign(unsigned long size,
1388 unsigned long align, void *ptr);
1391 extern errcode_t ext2fs_inline_data_init(ext2_filsys fs, ext2_ino_t ino);
1392 extern errcode_t ext2fs_inline_data_size(ext2_filsys fs, ext2_ino_t ino,
1394 extern errcode_t ext2fs_inline_data_get(ext2_filsys fs, ext2_ino_t ino,
1395 struct ext2_inode *inode,
1396 void *buf, size_t *size);
1397 extern errcode_t ext2fs_inline_data_set(ext2_filsys fs, ext2_ino_t ino,
1398 struct ext2_inode *inode,
1399 void *buf, size_t size);
1402 extern errcode_t ext2fs_create_inode_cache(ext2_filsys fs,
1403 unsigned int cache_size);
1404 extern void ext2fs_free_inode_cache(struct ext2_inode_cache *icache);
1405 extern errcode_t ext2fs_flush_icache(ext2_filsys fs);
1406 extern errcode_t ext2fs_get_next_inode_full(ext2_inode_scan scan,
1408 struct ext2_inode *inode,
1410 extern errcode_t ext2fs_open_inode_scan(ext2_filsys fs, int buffer_blocks,
1411 ext2_inode_scan *ret_scan);
1412 extern void ext2fs_close_inode_scan(ext2_inode_scan scan);
1413 extern errcode_t ext2fs_get_next_inode(ext2_inode_scan scan, ext2_ino_t *ino,
1414 struct ext2_inode *inode);
1415 extern errcode_t ext2fs_inode_scan_goto_blockgroup(ext2_inode_scan scan,
1417 extern void ext2fs_set_inode_callback
1418 (ext2_inode_scan scan,
1419 errcode_t (*done_group)(ext2_filsys fs,
1420 ext2_inode_scan scan,
1423 void *done_group_data);
1424 extern int ext2fs_inode_scan_flags(ext2_inode_scan scan, int set_flags,
1426 extern errcode_t ext2fs_read_inode_full(ext2_filsys fs, ext2_ino_t ino,
1427 struct ext2_inode * inode,
1429 extern errcode_t ext2fs_read_inode (ext2_filsys fs, ext2_ino_t ino,
1430 struct ext2_inode * inode);
1431 extern errcode_t ext2fs_write_inode_full(ext2_filsys fs, ext2_ino_t ino,
1432 struct ext2_inode * inode,
1434 extern errcode_t ext2fs_write_inode(ext2_filsys fs, ext2_ino_t ino,
1435 struct ext2_inode * inode);
1436 extern errcode_t ext2fs_write_new_inode(ext2_filsys fs, ext2_ino_t ino,
1437 struct ext2_inode * inode);
1438 extern errcode_t ext2fs_get_blocks(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
1439 extern errcode_t ext2fs_check_directory(ext2_filsys fs, ext2_ino_t ino);
1442 extern io_manager inode_io_manager;
1443 extern errcode_t ext2fs_inode_io_intern(ext2_filsys fs, ext2_ino_t ino,
1445 extern errcode_t ext2fs_inode_io_intern2(ext2_filsys fs, ext2_ino_t ino,
1446 struct ext2_inode *inode,
1450 extern errcode_t ext2fs_check_if_mounted(const char *file, int *mount_flags);
1451 extern errcode_t ext2fs_check_mount_point(const char *device, int *mount_flags,
1452 char *mtpt, int mtlen);
1456 * NOTE: This function removes from an inode the blocks "start", "end", and
1457 * every block in between.
1459 extern errcode_t ext2fs_punch(ext2_filsys fs, ext2_ino_t ino,
1460 struct ext2_inode *inode,
1461 char *block_buf, blk64_t start,
1465 extern errcode_t ext2fs_lookup(ext2_filsys fs, ext2_ino_t dir, const char *name,
1466 int namelen, char *buf, ext2_ino_t *inode);
1467 extern errcode_t ext2fs_namei(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1468 const char *name, ext2_ino_t *inode);
1469 errcode_t ext2fs_namei_follow(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1470 const char *name, ext2_ino_t *inode);
1471 extern errcode_t ext2fs_follow_link(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1472 ext2_ino_t inode, ext2_ino_t *res_inode);
1475 int ext2fs_native_flag(void);
1478 extern errcode_t ext2fs_new_dir_block(ext2_filsys fs, ext2_ino_t dir_ino,
1479 ext2_ino_t parent_ino, char **block);
1480 extern errcode_t ext2fs_new_dir_inline_data(ext2_filsys fs, ext2_ino_t dir_ino,
1481 ext2_ino_t parent_ino, __u32 *iblock);
1484 extern errcode_t ext2fs_mkdir(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t inum,
1488 extern errcode_t ext2fs_zero_blocks(ext2_filsys fs, blk_t blk, int num,
1489 blk_t *ret_blk, int *ret_count);
1490 extern errcode_t ext2fs_zero_blocks2(ext2_filsys fs, blk64_t blk, int num,
1491 blk64_t *ret_blk, int *ret_count);
1492 extern errcode_t ext2fs_create_journal_superblock(ext2_filsys fs,
1493 __u32 num_blocks, int flags,
1495 extern errcode_t ext2fs_add_journal_device(ext2_filsys fs,
1496 ext2_filsys journal_dev);
1497 extern errcode_t ext2fs_add_journal_inode(ext2_filsys fs, blk_t num_blocks,
1499 extern errcode_t ext2fs_add_journal_inode2(ext2_filsys fs, blk_t num_blocks,
1500 blk64_t goal, int flags);
1501 extern int ext2fs_default_journal_size(__u64 num_blocks);
1504 extern errcode_t ext2fs_open(const char *name, int flags, int superblock,
1505 unsigned int block_size, io_manager manager,
1506 ext2_filsys *ret_fs);
1507 extern errcode_t ext2fs_open2(const char *name, const char *io_options,
1508 int flags, int superblock,
1509 unsigned int block_size, io_manager manager,
1510 ext2_filsys *ret_fs);
1512 * The dgrp_t argument to these two functions is not actually a group number
1513 * but a block number offset within a group table! Convert with the formula
1514 * (group_number / groups_per_block).
1516 extern blk64_t ext2fs_descriptor_block_loc2(ext2_filsys fs,
1517 blk64_t group_block, dgrp_t i);
1518 extern blk_t ext2fs_descriptor_block_loc(ext2_filsys fs, blk_t group_block,
1520 errcode_t ext2fs_get_data_io(ext2_filsys fs, io_channel *old_io);
1521 errcode_t ext2fs_set_data_io(ext2_filsys fs, io_channel new_io);
1522 errcode_t ext2fs_rewrite_to_io(ext2_filsys fs, io_channel new_io);
1524 /* get_pathname.c */
1525 extern errcode_t ext2fs_get_pathname(ext2_filsys fs, ext2_ino_t dir, ext2_ino_t ino,
1529 errcode_t ext2fs_link(ext2_filsys fs, ext2_ino_t dir, const char *name,
1530 ext2_ino_t ino, int flags);
1531 errcode_t ext2fs_unlink(ext2_filsys fs, ext2_ino_t dir, const char *name,
1532 ext2_ino_t ino, int flags);
1535 errcode_t ext2fs_symlink(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t ino,
1536 const char *name, char *target);
1539 errcode_t ext2fs_mmp_read(ext2_filsys fs, blk64_t mmp_blk, void *buf);
1540 errcode_t ext2fs_mmp_write(ext2_filsys fs, blk64_t mmp_blk, void *buf);
1541 errcode_t ext2fs_mmp_clear(ext2_filsys fs);
1542 errcode_t ext2fs_mmp_init(ext2_filsys fs);
1543 errcode_t ext2fs_mmp_start(ext2_filsys fs);
1544 errcode_t ext2fs_mmp_update(ext2_filsys fs);
1545 errcode_t ext2fs_mmp_update2(ext2_filsys fs, int immediately);
1546 errcode_t ext2fs_mmp_stop(ext2_filsys fs);
1547 unsigned ext2fs_mmp_new_seq(void);
1550 extern errcode_t ext2fs_read_bb_inode(ext2_filsys fs,
1551 ext2_badblocks_list *bb_list);
1553 /* read_bb_file.c */
1554 extern errcode_t ext2fs_read_bb_FILE2(ext2_filsys fs, FILE *f,
1555 ext2_badblocks_list *bb_list,
1557 void (*invalid)(ext2_filsys fs,
1561 extern errcode_t ext2fs_read_bb_FILE(ext2_filsys fs, FILE *f,
1562 ext2_badblocks_list *bb_list,
1563 void (*invalid)(ext2_filsys fs,
1567 extern errcode_t ext2fs_create_resize_inode(ext2_filsys fs);
1570 extern errcode_t ext2fs_dirent_swab_in2(ext2_filsys fs, char *buf, size_t size,
1572 extern errcode_t ext2fs_dirent_swab_in(ext2_filsys fs, char *buf, int flags);
1573 extern errcode_t ext2fs_dirent_swab_out2(ext2_filsys fs, char *buf, size_t size,
1575 extern errcode_t ext2fs_dirent_swab_out(ext2_filsys fs, char *buf, int flags);
1576 extern void ext2fs_swap_ext_attr(char *to, char *from, int bufsize,
1578 extern void ext2fs_swap_ext_attr_header(struct ext2_ext_attr_header *to_header,
1579 struct ext2_ext_attr_header *from_hdr);
1580 extern void ext2fs_swap_ext_attr_entry(struct ext2_ext_attr_entry *to_entry,
1581 struct ext2_ext_attr_entry *from_entry);
1582 extern void ext2fs_swap_super(struct ext2_super_block * super);
1583 extern void ext2fs_swap_group_desc(struct ext2_group_desc *gdp);
1584 extern void ext2fs_swap_group_desc2(ext2_filsys, struct ext2_group_desc *gdp);
1585 extern void ext2fs_swap_inode_full(ext2_filsys fs, struct ext2_inode_large *t,
1586 struct ext2_inode_large *f, int hostorder,
1588 extern void ext2fs_swap_inode(ext2_filsys fs,struct ext2_inode *t,
1589 struct ext2_inode *f, int hostorder);
1590 extern void ext2fs_swap_mmp(struct mmp_struct *mmp);
1593 extern int ext2fs_open_file(const char *pathname, int flags, mode_t mode);
1594 extern int ext2fs_stat(const char *path, ext2fs_struct_stat *buf);
1595 extern int ext2fs_fstat(int fd, ext2fs_struct_stat *buf);
1598 extern int ext2fs_inode_has_valid_blocks(struct ext2_inode *inode);
1599 extern int ext2fs_inode_has_valid_blocks2(ext2_filsys fs,
1600 struct ext2_inode *inode);
1603 extern int ext2fs_parse_version_string(const char *ver_string);
1604 extern int ext2fs_get_library_version(const char **ver_string,
1605 const char **date_string);
1607 /* write_bb_file.c */
1608 extern errcode_t ext2fs_write_bb_FILE(ext2_badblocks_list bb_list,
1613 /* inline functions */
1614 #ifdef NO_INLINE_FUNCS
1615 extern void ext2fs_init_csum_seed(ext2_filsys fs);
1616 extern errcode_t ext2fs_get_mem(unsigned long size, void *ptr);
1617 extern errcode_t ext2fs_get_memzero(unsigned long size, void *ptr);
1618 extern errcode_t ext2fs_get_array(unsigned long count,
1619 unsigned long size, void *ptr);
1620 extern errcode_t ext2fs_get_arrayzero(unsigned long count,
1621 unsigned long size, void *ptr);
1622 extern errcode_t ext2fs_free_mem(void *ptr);
1623 extern errcode_t ext2fs_resize_mem(unsigned long old_size,
1624 unsigned long size, void *ptr);
1625 extern void ext2fs_mark_super_dirty(ext2_filsys fs);
1626 extern void ext2fs_mark_changed(ext2_filsys fs);
1627 extern int ext2fs_test_changed(ext2_filsys fs);
1628 extern void ext2fs_mark_valid(ext2_filsys fs);
1629 extern void ext2fs_unmark_valid(ext2_filsys fs);
1630 extern int ext2fs_test_valid(ext2_filsys fs);
1631 extern void ext2fs_mark_ib_dirty(ext2_filsys fs);
1632 extern void ext2fs_mark_bb_dirty(ext2_filsys fs);
1633 extern int ext2fs_test_ib_dirty(ext2_filsys fs);
1634 extern int ext2fs_test_bb_dirty(ext2_filsys fs);
1635 extern dgrp_t ext2fs_group_of_blk(ext2_filsys fs, blk_t blk);
1636 extern dgrp_t ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino);
1637 extern blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group);
1638 extern blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group);
1639 extern blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
1640 struct ext2_inode *inode);
1641 extern unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b);
1642 extern __u64 ext2fs_div64_ceil(__u64 a, __u64 b);
1646 * The actual inlined functions definitions themselves...
1648 * If NO_INLINE_FUNCS is defined, then we won't try to do inline
1651 #if (defined(INCLUDE_INLINE_FUNCS) || !defined(NO_INLINE_FUNCS))
1652 #ifdef INCLUDE_INLINE_FUNCS
1653 #define _INLINE_ extern
1655 #if (__STDC_VERSION__ >= 199901L)
1656 #define _INLINE_ inline
1659 #define _INLINE_ extern __inline__
1660 #else /* For Watcom C */
1661 #define _INLINE_ extern inline
1662 #endif /* __GNUC__ */
1663 #endif /* __STDC_VERSION__ >= 199901L */
1666 _INLINE_ void ext2fs_init_csum_seed(ext2_filsys fs)
1668 if (!EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
1669 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
1672 fs->csum_seed = ext2fs_crc32c_le(~0, fs->super->s_uuid,
1673 sizeof(fs->super->s_uuid));
1676 #ifndef EXT2_CUSTOM_MEMORY_ROUTINES
1679 * Allocate memory. The 'ptr' arg must point to a pointer.
1681 _INLINE_ errcode_t ext2fs_get_mem(unsigned long size, void *ptr)
1687 return EXT2_ET_NO_MEMORY;
1688 memcpy(ptr, &pp, sizeof (pp));
1692 _INLINE_ errcode_t ext2fs_get_memzero(unsigned long size, void *ptr)
1698 return EXT2_ET_NO_MEMORY;
1699 memset(pp, 0, size);
1700 memcpy(ptr, &pp, sizeof(pp));
1704 _INLINE_ errcode_t ext2fs_get_array(unsigned long count, unsigned long size, void *ptr)
1706 if (count && (-1UL)/count<size)
1707 return EXT2_ET_NO_MEMORY;
1708 return ext2fs_get_mem(count*size, ptr);
1711 _INLINE_ errcode_t ext2fs_get_arrayzero(unsigned long count,
1712 unsigned long size, void *ptr)
1716 if (count && (-1UL)/count<size)
1717 return EXT2_ET_NO_MEMORY;
1718 pp = calloc(count, size);
1720 return EXT2_ET_NO_MEMORY;
1721 memcpy(ptr, &pp, sizeof(pp));
1726 * Free memory. The 'ptr' arg must point to a pointer.
1728 _INLINE_ errcode_t ext2fs_free_mem(void *ptr)
1732 memcpy(&p, ptr, sizeof(p));
1735 memcpy(ptr, &p, sizeof(p));
1740 * Resize memory. The 'ptr' arg must point to a pointer.
1742 _INLINE_ errcode_t ext2fs_resize_mem(unsigned long EXT2FS_ATTR((unused)) old_size,
1743 unsigned long size, void *ptr)
1747 /* Use "memcpy" for pointer assignments here to avoid problems
1748 * with C99 strict type aliasing rules. */
1749 memcpy(&p, ptr, sizeof(p));
1750 p = realloc(p, size);
1752 return EXT2_ET_NO_MEMORY;
1753 memcpy(ptr, &p, sizeof(p));
1756 #endif /* Custom memory routines */
1759 * Mark a filesystem superblock as dirty
1761 _INLINE_ void ext2fs_mark_super_dirty(ext2_filsys fs)
1763 fs->flags |= EXT2_FLAG_DIRTY | EXT2_FLAG_CHANGED;
1767 * Mark a filesystem as changed
1769 _INLINE_ void ext2fs_mark_changed(ext2_filsys fs)
1771 fs->flags |= EXT2_FLAG_CHANGED;
1775 * Check to see if a filesystem has changed
1777 _INLINE_ int ext2fs_test_changed(ext2_filsys fs)
1779 return (fs->flags & EXT2_FLAG_CHANGED);
1783 * Mark a filesystem as valid
1785 _INLINE_ void ext2fs_mark_valid(ext2_filsys fs)
1787 fs->flags |= EXT2_FLAG_VALID;
1791 * Mark a filesystem as NOT valid
1793 _INLINE_ void ext2fs_unmark_valid(ext2_filsys fs)
1795 fs->flags &= ~EXT2_FLAG_VALID;
1799 * Check to see if a filesystem is valid
1801 _INLINE_ int ext2fs_test_valid(ext2_filsys fs)
1803 return (fs->flags & EXT2_FLAG_VALID);
1807 * Mark the inode bitmap as dirty
1809 _INLINE_ void ext2fs_mark_ib_dirty(ext2_filsys fs)
1811 fs->flags |= EXT2_FLAG_IB_DIRTY | EXT2_FLAG_CHANGED;
1815 * Mark the block bitmap as dirty
1817 _INLINE_ void ext2fs_mark_bb_dirty(ext2_filsys fs)
1819 fs->flags |= EXT2_FLAG_BB_DIRTY | EXT2_FLAG_CHANGED;
1823 * Check to see if a filesystem's inode bitmap is dirty
1825 _INLINE_ int ext2fs_test_ib_dirty(ext2_filsys fs)
1827 return (fs->flags & EXT2_FLAG_IB_DIRTY);
1831 * Check to see if a filesystem's block bitmap is dirty
1833 _INLINE_ int ext2fs_test_bb_dirty(ext2_filsys fs)
1835 return (fs->flags & EXT2_FLAG_BB_DIRTY);
1839 * Return the group # of a block
1841 _INLINE_ dgrp_t ext2fs_group_of_blk(ext2_filsys fs, blk_t blk)
1843 return ext2fs_group_of_blk2(fs, blk);
1846 * Return the group # of an inode number
1848 _INLINE_ dgrp_t ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino)
1850 return (ino - 1) / fs->super->s_inodes_per_group;
1854 * Return the first block (inclusive) in a group
1856 _INLINE_ blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group)
1858 return (blk_t) ext2fs_group_first_block2(fs, group);
1862 * Return the last block (inclusive) in a group
1864 _INLINE_ blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group)
1866 return (blk_t) ext2fs_group_last_block2(fs, group);
1869 _INLINE_ blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
1870 struct ext2_inode *inode)
1872 return (blk_t) ext2fs_inode_data_blocks2(fs, inode);
1876 * This is an efficient, overflow safe way of calculating ceil((1.0 * a) / b)
1878 _INLINE_ unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b)
1882 return ((a - 1) / b) + 1;
1885 _INLINE_ __u64 ext2fs_div64_ceil(__u64 a, __u64 b)
1889 return ((a - 1) / b) + 1;
1892 _INLINE_ int ext2fs_dirent_name_len(const struct ext2_dir_entry *entry)
1894 return entry->name_len & 0xff;
1897 _INLINE_ void ext2fs_dirent_set_name_len(struct ext2_dir_entry *entry, int len)
1899 entry->name_len = (entry->name_len & 0xff00) | (len & 0xff);
1902 _INLINE_ int ext2fs_dirent_file_type(const struct ext2_dir_entry *entry)
1904 return entry->name_len >> 8;
1907 _INLINE_ void ext2fs_dirent_set_file_type(struct ext2_dir_entry *entry, int type)
1909 entry->name_len = (entry->name_len & 0xff) | (type << 8);
1919 #endif /* _EXT2FS_EXT2FS_H */