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)
602 #define EXT2_LIB_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|\
603 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|\
604 EXT2_FEATURE_RO_COMPAT_LARGE_FILE|\
605 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|\
606 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|\
607 EXT4_FEATURE_RO_COMPAT_GDT_CSUM|\
608 EXT4_FEATURE_RO_COMPAT_BIGALLOC|\
609 EXT4_LIB_RO_COMPAT_QUOTA|\
610 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM)
613 * These features are only allowed if EXT2_FLAG_SOFTSUPP_FEATURES is passed
616 #define EXT2_LIB_SOFTSUPP_INCOMPAT (EXT4_FEATURE_INCOMPAT_INLINE_DATA)
617 #define EXT2_LIB_SOFTSUPP_RO_COMPAT (EXT4_FEATURE_RO_COMPAT_REPLICA)
620 /* Translate a block number to a cluster number */
621 #define EXT2FS_CLUSTER_RATIO(fs) (1 << (fs)->cluster_ratio_bits)
622 #define EXT2FS_CLUSTER_MASK(fs) (EXT2FS_CLUSTER_RATIO(fs) - 1)
623 #define EXT2FS_B2C(fs, blk) ((blk) >> (fs)->cluster_ratio_bits)
624 /* Translate a cluster number to a block number */
625 #define EXT2FS_C2B(fs, cluster) ((cluster) << (fs)->cluster_ratio_bits)
626 /* Translate # of blks to # of clusters */
627 #define EXT2FS_NUM_B2C(fs, blks) (((blks) + EXT2FS_CLUSTER_MASK(fs)) >> \
628 (fs)->cluster_ratio_bits)
630 #if defined(HAVE_FSTAT64) && !defined(__OSX_AVAILABLE_BUT_DEPRECATED)
631 typedef struct stat64 ext2fs_struct_stat;
633 typedef struct stat ext2fs_struct_stat;
637 * For ext2fs_close2() and ext2fs_flush2(), this flag allows you to
638 * avoid the fsync call.
640 #define EXT2_FLAG_FLUSH_NO_SYNC 1
643 * Modify and iterate extended attributes
645 struct ext2_xattr_handle;
646 #define XATTR_ABORT 1
647 #define XATTR_CHANGED 2
650 * function prototypes
652 static inline int ext2fs_has_group_desc_csum(ext2_filsys fs)
654 return EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
655 EXT4_FEATURE_RO_COMPAT_GDT_CSUM |
656 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM);
659 /* The LARGE_FILE feature should be set if we have stored files 2GB+ in size */
660 static inline int ext2fs_needs_large_file_feature(unsigned long long file_size)
662 return file_size >= 0x80000000ULL;
666 extern errcode_t ext2fs_new_inode(ext2_filsys fs, ext2_ino_t dir, int mode,
667 ext2fs_inode_bitmap map, ext2_ino_t *ret);
668 extern errcode_t ext2fs_new_block(ext2_filsys fs, blk_t goal,
669 ext2fs_block_bitmap map, blk_t *ret);
670 extern errcode_t ext2fs_new_block2(ext2_filsys fs, blk64_t goal,
671 ext2fs_block_bitmap map, blk64_t *ret);
672 extern errcode_t ext2fs_get_free_blocks(ext2_filsys fs, blk_t start,
673 blk_t finish, int num,
674 ext2fs_block_bitmap map,
676 extern errcode_t ext2fs_get_free_blocks2(ext2_filsys fs, blk64_t start,
677 blk64_t finish, int num,
678 ext2fs_block_bitmap map,
680 extern errcode_t ext2fs_alloc_block(ext2_filsys fs, blk_t goal,
681 char *block_buf, blk_t *ret);
682 extern errcode_t ext2fs_alloc_block2(ext2_filsys fs, blk64_t goal,
683 char *block_buf, blk64_t *ret);
684 extern void ext2fs_set_alloc_block_callback(ext2_filsys fs,
685 errcode_t (*func)(ext2_filsys fs,
688 errcode_t (**old)(ext2_filsys fs,
693 extern int ext2fs_reserve_super_and_bgd(ext2_filsys fs,
695 ext2fs_block_bitmap bmap);
696 extern void ext2fs_set_block_alloc_stats_callback(ext2_filsys fs,
697 void (*func)(ext2_filsys fs,
700 void (**old)(ext2_filsys fs,
705 void ext2fs_inode_alloc_stats(ext2_filsys fs, ext2_ino_t ino, int inuse);
706 void ext2fs_inode_alloc_stats2(ext2_filsys fs, ext2_ino_t ino,
707 int inuse, int isdir);
708 void ext2fs_block_alloc_stats(ext2_filsys fs, blk_t blk, int inuse);
709 void ext2fs_block_alloc_stats2(ext2_filsys fs, blk64_t blk, int inuse);
710 void ext2fs_block_alloc_stats_range(ext2_filsys fs, blk64_t blk,
711 blk_t num, int inuse);
714 extern errcode_t ext2fs_allocate_tables(ext2_filsys fs);
715 extern errcode_t ext2fs_allocate_group_table(ext2_filsys fs, dgrp_t group,
716 ext2fs_block_bitmap bmap);
719 extern errcode_t ext2fs_u32_list_create(ext2_u32_list *ret, int size);
720 extern errcode_t ext2fs_u32_list_add(ext2_u32_list bb, __u32 blk);
721 extern int ext2fs_u32_list_find(ext2_u32_list bb, __u32 blk);
722 extern int ext2fs_u32_list_test(ext2_u32_list bb, blk_t blk);
723 extern errcode_t ext2fs_u32_list_iterate_begin(ext2_u32_list bb,
724 ext2_u32_iterate *ret);
725 extern int ext2fs_u32_list_iterate(ext2_u32_iterate iter, blk_t *blk);
726 extern void ext2fs_u32_list_iterate_end(ext2_u32_iterate iter);
727 extern errcode_t ext2fs_u32_copy(ext2_u32_list src, ext2_u32_list *dest);
728 extern int ext2fs_u32_list_equal(ext2_u32_list bb1, ext2_u32_list bb2);
730 extern errcode_t ext2fs_badblocks_list_create(ext2_badblocks_list *ret,
732 extern errcode_t ext2fs_badblocks_list_add(ext2_badblocks_list bb,
734 extern int ext2fs_badblocks_list_test(ext2_badblocks_list bb,
736 extern int ext2fs_u32_list_del(ext2_u32_list bb, __u32 blk);
737 extern void ext2fs_badblocks_list_del(ext2_u32_list bb, __u32 blk);
739 ext2fs_badblocks_list_iterate_begin(ext2_badblocks_list bb,
740 ext2_badblocks_iterate *ret);
741 extern int ext2fs_badblocks_list_iterate(ext2_badblocks_iterate iter,
743 extern void ext2fs_badblocks_list_iterate_end(ext2_badblocks_iterate iter);
744 extern errcode_t ext2fs_badblocks_copy(ext2_badblocks_list src,
745 ext2_badblocks_list *dest);
746 extern int ext2fs_badblocks_equal(ext2_badblocks_list bb1,
747 ext2_badblocks_list bb2);
748 extern int ext2fs_u32_list_count(ext2_u32_list bb);
751 extern errcode_t badblocks_list_create(badblocks_list *ret, int size);
752 extern errcode_t badblocks_list_add(badblocks_list bb, blk_t blk);
753 extern int badblocks_list_test(badblocks_list bb, blk_t blk);
754 extern errcode_t badblocks_list_iterate_begin(badblocks_list bb,
755 badblocks_iterate *ret);
756 extern int badblocks_list_iterate(badblocks_iterate iter, blk_t *blk);
757 extern void badblocks_list_iterate_end(badblocks_iterate iter);
758 extern void badblocks_list_free(badblocks_list bb);
761 extern errcode_t ext2fs_update_bb_inode(ext2_filsys fs,
762 ext2_badblocks_list bb_list);
765 extern void ext2fs_free_block_bitmap(ext2fs_block_bitmap bitmap);
766 extern void ext2fs_free_inode_bitmap(ext2fs_inode_bitmap bitmap);
767 extern errcode_t ext2fs_copy_bitmap(ext2fs_generic_bitmap src,
768 ext2fs_generic_bitmap *dest);
769 extern errcode_t ext2fs_write_inode_bitmap(ext2_filsys fs);
770 extern errcode_t ext2fs_write_block_bitmap (ext2_filsys fs);
771 extern errcode_t ext2fs_read_inode_bitmap (ext2_filsys fs);
772 extern errcode_t ext2fs_read_block_bitmap(ext2_filsys fs);
773 extern errcode_t ext2fs_allocate_block_bitmap(ext2_filsys fs,
775 ext2fs_block_bitmap *ret);
776 extern errcode_t ext2fs_allocate_subcluster_bitmap(ext2_filsys fs,
778 ext2fs_block_bitmap *ret);
779 extern int ext2fs_get_bitmap_granularity(ext2fs_block_bitmap bitmap);
780 extern errcode_t ext2fs_allocate_inode_bitmap(ext2_filsys fs,
782 ext2fs_inode_bitmap *ret);
783 extern errcode_t ext2fs_fudge_inode_bitmap_end(ext2fs_inode_bitmap bitmap,
784 ext2_ino_t end, ext2_ino_t *oend);
785 extern errcode_t ext2fs_fudge_block_bitmap_end(ext2fs_block_bitmap bitmap,
786 blk_t end, blk_t *oend);
787 extern errcode_t ext2fs_fudge_block_bitmap_end2(ext2fs_block_bitmap bitmap,
788 blk64_t end, blk64_t *oend);
789 extern void ext2fs_clear_inode_bitmap(ext2fs_inode_bitmap bitmap);
790 extern void ext2fs_clear_block_bitmap(ext2fs_block_bitmap bitmap);
791 extern errcode_t ext2fs_read_bitmaps(ext2_filsys fs);
792 extern errcode_t ext2fs_write_bitmaps(ext2_filsys fs);
793 extern errcode_t ext2fs_resize_inode_bitmap(__u32 new_end, __u32 new_real_end,
794 ext2fs_inode_bitmap bmap);
795 extern errcode_t ext2fs_resize_inode_bitmap2(__u64 new_end,
797 ext2fs_inode_bitmap bmap);
798 extern errcode_t ext2fs_resize_block_bitmap(__u32 new_end, __u32 new_real_end,
799 ext2fs_block_bitmap bmap);
800 extern errcode_t ext2fs_resize_block_bitmap2(__u64 new_end,
802 ext2fs_block_bitmap bmap);
803 extern errcode_t ext2fs_compare_block_bitmap(ext2fs_block_bitmap bm1,
804 ext2fs_block_bitmap bm2);
805 extern errcode_t ext2fs_compare_inode_bitmap(ext2fs_inode_bitmap bm1,
806 ext2fs_inode_bitmap bm2);
807 extern errcode_t ext2fs_set_inode_bitmap_range(ext2fs_inode_bitmap bmap,
808 ext2_ino_t start, unsigned int num,
810 extern errcode_t ext2fs_set_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
811 __u64 start, size_t num,
813 extern errcode_t ext2fs_get_inode_bitmap_range(ext2fs_inode_bitmap bmap,
814 ext2_ino_t start, unsigned int num,
816 extern errcode_t ext2fs_get_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
817 __u64 start, size_t num,
819 extern errcode_t ext2fs_set_block_bitmap_range(ext2fs_block_bitmap bmap,
820 blk_t start, unsigned int num,
822 extern errcode_t ext2fs_set_block_bitmap_range2(ext2fs_block_bitmap bmap,
823 blk64_t start, size_t num,
825 extern errcode_t ext2fs_get_block_bitmap_range(ext2fs_block_bitmap bmap,
826 blk_t start, unsigned int num,
828 extern errcode_t ext2fs_get_block_bitmap_range2(ext2fs_block_bitmap bmap,
829 blk64_t start, size_t num,
833 extern __u32 ext2fs_inode_bitmap_checksum(ext2_filsys fs, dgrp_t group);
834 extern __u32 ext2fs_block_bitmap_checksum(ext2_filsys fs, dgrp_t group);
835 extern dgrp_t ext2fs_group_of_blk2(ext2_filsys fs, blk64_t);
836 extern blk64_t ext2fs_group_first_block2(ext2_filsys fs, dgrp_t group);
837 extern blk64_t ext2fs_group_last_block2(ext2_filsys fs, dgrp_t group);
838 extern int ext2fs_group_blocks_count(ext2_filsys fs, dgrp_t group);
839 extern blk64_t ext2fs_inode_data_blocks2(ext2_filsys fs,
840 struct ext2_inode *inode);
841 extern blk64_t ext2fs_inode_i_blocks(ext2_filsys fs,
842 struct ext2_inode *inode);
843 extern blk64_t ext2fs_blocks_count(struct ext2_super_block *super);
844 extern void ext2fs_blocks_count_set(struct ext2_super_block *super,
846 extern void ext2fs_blocks_count_add(struct ext2_super_block *super,
848 extern blk64_t ext2fs_r_blocks_count(struct ext2_super_block *super);
849 extern void ext2fs_r_blocks_count_set(struct ext2_super_block *super,
851 extern void ext2fs_r_blocks_count_add(struct ext2_super_block *super,
853 extern blk64_t ext2fs_free_blocks_count(struct ext2_super_block *super);
854 extern void ext2fs_free_blocks_count_set(struct ext2_super_block *super,
856 extern void ext2fs_free_blocks_count_add(struct ext2_super_block *super,
858 /* Block group descriptor accessor functions */
859 extern struct ext2_group_desc *ext2fs_group_desc(ext2_filsys fs,
860 struct opaque_ext2_group_desc *gdp,
862 extern blk64_t ext2fs_block_bitmap_csum(ext2_filsys fs, dgrp_t group);
863 extern blk64_t ext2fs_block_bitmap_loc(ext2_filsys fs, dgrp_t group);
864 extern void ext2fs_block_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
866 extern __u32 ext2fs_inode_bitmap_csum(ext2_filsys fs, dgrp_t group);
867 extern blk64_t ext2fs_inode_bitmap_loc(ext2_filsys fs, dgrp_t group);
868 extern void ext2fs_inode_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
870 extern blk64_t ext2fs_inode_table_loc(ext2_filsys fs, dgrp_t group);
871 extern void ext2fs_inode_table_loc_set(ext2_filsys fs, dgrp_t group,
873 extern __u32 ext2fs_bg_free_blocks_count(ext2_filsys fs, dgrp_t group);
874 extern void ext2fs_bg_free_blocks_count_set(ext2_filsys fs, dgrp_t group,
876 extern __u32 ext2fs_bg_free_inodes_count(ext2_filsys fs, dgrp_t group);
877 extern void ext2fs_bg_free_inodes_count_set(ext2_filsys fs, dgrp_t group,
879 extern __u32 ext2fs_bg_used_dirs_count(ext2_filsys fs, dgrp_t group);
880 extern void ext2fs_bg_used_dirs_count_set(ext2_filsys fs, dgrp_t group,
882 extern __u32 ext2fs_bg_itable_unused(ext2_filsys fs, dgrp_t group);
883 extern void ext2fs_bg_itable_unused_set(ext2_filsys fs, dgrp_t group,
885 extern __u16 ext2fs_bg_flags(ext2_filsys fs, dgrp_t group);
886 extern void ext2fs_bg_flags_zap(ext2_filsys fs, dgrp_t group);
887 extern int ext2fs_bg_flags_test(ext2_filsys fs, dgrp_t group, __u16 bg_flag);
888 extern void ext2fs_bg_flags_set(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
889 extern void ext2fs_bg_flags_clear(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
890 extern __u16 ext2fs_bg_checksum(ext2_filsys fs, dgrp_t group);
891 extern void ext2fs_bg_checksum_set(ext2_filsys fs, dgrp_t group, __u16 checksum);
892 extern blk64_t ext2fs_file_acl_block(ext2_filsys fs,
893 const struct ext2_inode *inode);
894 extern void ext2fs_file_acl_block_set(ext2_filsys fs,
895 struct ext2_inode *inode, blk64_t blk);
898 extern errcode_t ext2fs_block_iterate(ext2_filsys fs,
902 int (*func)(ext2_filsys fs,
907 errcode_t ext2fs_block_iterate2(ext2_filsys fs,
911 int (*func)(ext2_filsys fs,
913 e2_blkcnt_t blockcnt,
918 errcode_t ext2fs_block_iterate3(ext2_filsys fs,
922 int (*func)(ext2_filsys fs,
924 e2_blkcnt_t blockcnt,
931 extern errcode_t ext2fs_bmap(ext2_filsys fs, ext2_ino_t ino,
932 struct ext2_inode *inode,
933 char *block_buf, int bmap_flags,
934 blk_t block, blk_t *phys_blk);
935 extern errcode_t ext2fs_bmap2(ext2_filsys fs, ext2_ino_t ino,
936 struct ext2_inode *inode,
937 char *block_buf, int bmap_flags, blk64_t block,
938 int *ret_flags, blk64_t *phys_blk);
939 errcode_t ext2fs_map_cluster_block(ext2_filsys fs, ext2_ino_t ino,
940 struct ext2_inode *inode, blk64_t lblk,
945 extern errcode_t ext2fs_move_blocks(ext2_filsys fs,
946 ext2fs_block_bitmap reserve,
947 ext2fs_block_bitmap alloc_map,
952 extern errcode_t ext2fs_check_desc(ext2_filsys fs);
955 extern errcode_t ext2fs_close(ext2_filsys fs);
956 extern errcode_t ext2fs_close2(ext2_filsys fs, int flags);
957 extern errcode_t ext2fs_flush(ext2_filsys fs);
958 extern errcode_t ext2fs_flush2(ext2_filsys fs, int flags);
959 extern int ext2fs_bg_has_super(ext2_filsys fs, dgrp_t group_block);
960 extern errcode_t ext2fs_super_and_bgd_loc2(ext2_filsys fs,
962 blk64_t *ret_super_blk,
963 blk64_t *ret_old_desc_blk,
964 blk64_t *ret_new_desc_blk,
965 blk_t *ret_used_blks);
966 extern int ext2fs_super_and_bgd_loc(ext2_filsys fs,
968 blk_t *ret_super_blk,
969 blk_t *ret_old_desc_blk,
970 blk_t *ret_new_desc_blk,
972 extern void ext2fs_update_dynamic_rev(ext2_filsys fs);
975 extern __u32 ext2fs_crc32_be(__u32 crc, unsigned char const *p, size_t len);
976 extern __u32 ext2fs_crc32c_le(__u32 crc, unsigned char const *p, size_t len);
979 extern errcode_t ext2fs_mmp_csum_set(ext2_filsys fs, struct mmp_struct *mmp);
980 extern int ext2fs_mmp_csum_verify(ext2_filsys, struct mmp_struct *mmp);
981 extern int ext2fs_verify_csum_type(ext2_filsys fs, struct ext2_super_block *sb);
982 extern errcode_t ext2fs_superblock_csum_set(ext2_filsys fs,
983 struct ext2_super_block *sb);
984 extern int ext2fs_superblock_csum_verify(ext2_filsys fs,
985 struct ext2_super_block *sb);
986 extern errcode_t ext2fs_ext_attr_block_csum_set(ext2_filsys fs,
987 ext2_ino_t inum, blk64_t block,
988 struct ext2_ext_attr_header *hdr);
989 extern int ext2fs_ext_attr_block_csum_verify(ext2_filsys fs, ext2_ino_t inum,
991 struct ext2_ext_attr_header *hdr);
992 #define EXT2_DIRENT_TAIL(block, blocksize) \
993 ((struct ext2_dir_entry_tail *)(((char *)(block)) + \
994 (blocksize) - sizeof(struct ext2_dir_entry_tail)))
996 extern void ext2fs_initialize_dirent_tail(ext2_filsys fs,
997 struct ext2_dir_entry_tail *t);
998 extern int ext2fs_dirent_has_tail(ext2_filsys fs,
999 struct ext2_dir_entry *dirent);
1000 extern int ext2fs_dirent_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1001 struct ext2_dir_entry *dirent);
1002 extern int ext2fs_dir_block_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1003 struct ext2_dir_entry *dirent);
1004 extern errcode_t ext2fs_dir_block_csum_set(ext2_filsys fs, ext2_ino_t inum,
1005 struct ext2_dir_entry *dirent);
1006 extern errcode_t ext2fs_get_dx_countlimit(ext2_filsys fs,
1007 struct ext2_dir_entry *dirent,
1008 struct ext2_dx_countlimit **cc,
1010 extern errcode_t ext2fs_extent_block_csum_set(ext2_filsys fs,
1012 struct ext3_extent_header *eh);
1013 extern int ext2fs_extent_block_csum_verify(ext2_filsys fs,
1015 struct ext3_extent_header *eh);
1016 extern errcode_t ext2fs_block_bitmap_csum_set(ext2_filsys fs, dgrp_t group,
1017 char *bitmap, int size);
1018 extern int ext2fs_block_bitmap_csum_verify(ext2_filsys fs, dgrp_t group,
1019 char *bitmap, int size);
1020 extern errcode_t ext2fs_inode_bitmap_csum_set(ext2_filsys fs, dgrp_t group,
1021 char *bitmap, int size);
1022 extern int ext2fs_inode_bitmap_csum_verify(ext2_filsys fs, dgrp_t group,
1023 char *bitmap, int size);
1024 extern errcode_t ext2fs_inode_csum_set(ext2_filsys fs, ext2_ino_t inum,
1025 struct ext2_inode_large *inode);
1026 extern int ext2fs_inode_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1027 struct ext2_inode_large *inode);
1028 extern void ext2fs_group_desc_csum_set(ext2_filsys fs, dgrp_t group);
1029 extern int ext2fs_group_desc_csum_verify(ext2_filsys fs, dgrp_t group);
1030 extern errcode_t ext2fs_set_gdt_csum(ext2_filsys fs);
1031 extern __u16 ext2fs_group_desc_csum(ext2_filsys fs, dgrp_t group);
1034 extern errcode_t ext2fs_init_dblist(ext2_filsys fs, ext2_dblist *ret_dblist);
1035 extern errcode_t ext2fs_add_dir_block(ext2_dblist dblist, ext2_ino_t ino,
1036 blk_t blk, int blockcnt);
1037 extern errcode_t ext2fs_add_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
1038 blk64_t blk, e2_blkcnt_t blockcnt);
1039 extern void ext2fs_dblist_sort(ext2_dblist dblist,
1040 EXT2_QSORT_TYPE (*sortfunc)(const void *,
1042 extern void ext2fs_dblist_sort2(ext2_dblist dblist,
1043 EXT2_QSORT_TYPE (*sortfunc)(const void *,
1045 extern errcode_t ext2fs_dblist_iterate(ext2_dblist dblist,
1046 int (*func)(ext2_filsys fs, struct ext2_db_entry *db_info,
1049 extern errcode_t ext2fs_dblist_iterate2(ext2_dblist dblist,
1050 int (*func)(ext2_filsys fs, struct ext2_db_entry2 *db_info,
1053 extern errcode_t ext2fs_set_dir_block(ext2_dblist dblist, ext2_ino_t ino,
1054 blk_t blk, int blockcnt);
1055 extern errcode_t ext2fs_set_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
1056 blk64_t blk, e2_blkcnt_t blockcnt);
1057 extern errcode_t ext2fs_copy_dblist(ext2_dblist src,
1059 extern int ext2fs_dblist_count(ext2_dblist dblist);
1060 extern blk64_t ext2fs_dblist_count2(ext2_dblist dblist);
1061 extern errcode_t ext2fs_dblist_get_last(ext2_dblist dblist,
1062 struct ext2_db_entry **entry);
1063 extern errcode_t ext2fs_dblist_get_last2(ext2_dblist dblist,
1064 struct ext2_db_entry2 **entry);
1065 extern errcode_t ext2fs_dblist_drop_last(ext2_dblist dblist);
1069 ext2fs_dblist_dir_iterate(ext2_dblist dblist,
1072 int (*func)(ext2_ino_t dir,
1074 struct ext2_dir_entry *dirent,
1082 extern errcode_t ext2fs_read_dir_block(ext2_filsys fs, blk_t block,
1084 extern errcode_t ext2fs_read_dir_block2(ext2_filsys fs, blk_t block,
1085 void *buf, int flags);
1086 extern errcode_t ext2fs_read_dir_block3(ext2_filsys fs, blk64_t block,
1087 void *buf, int flags);
1088 extern errcode_t ext2fs_read_dir_block4(ext2_filsys fs, blk64_t block,
1089 void *buf, int flags, ext2_ino_t ino);
1090 extern errcode_t ext2fs_write_dir_block(ext2_filsys fs, blk_t block,
1092 extern errcode_t ext2fs_write_dir_block2(ext2_filsys fs, blk_t block,
1093 void *buf, int flags);
1094 extern errcode_t ext2fs_write_dir_block3(ext2_filsys fs, blk64_t block,
1095 void *buf, int flags);
1096 extern errcode_t ext2fs_write_dir_block4(ext2_filsys fs, blk64_t block,
1097 void *buf, int flags, ext2_ino_t ino);
1100 extern errcode_t ext2fs_dirhash(int version, const char *name, int len,
1102 ext2_dirhash_t *ret_hash,
1103 ext2_dirhash_t *ret_minor_hash);
1107 extern errcode_t ext2fs_get_rec_len(ext2_filsys fs,
1108 struct ext2_dir_entry *dirent,
1109 unsigned int *rec_len);
1110 extern errcode_t ext2fs_set_rec_len(ext2_filsys fs,
1112 struct ext2_dir_entry *dirent);
1113 extern errcode_t ext2fs_dir_iterate(ext2_filsys fs,
1117 int (*func)(struct ext2_dir_entry *dirent,
1123 extern errcode_t ext2fs_dir_iterate2(ext2_filsys fs,
1127 int (*func)(ext2_ino_t dir,
1129 struct ext2_dir_entry *dirent,
1137 extern errcode_t ext2fs_dup_handle(ext2_filsys src, ext2_filsys *dest);
1140 extern errcode_t ext2fs_expand_dir(ext2_filsys fs, ext2_ino_t dir);
1143 extern __u32 ext2fs_ext_attr_hash_entry(struct ext2_ext_attr_entry *entry,
1145 extern errcode_t ext2fs_read_ext_attr(ext2_filsys fs, blk_t block, void *buf);
1146 extern errcode_t ext2fs_read_ext_attr2(ext2_filsys fs, blk64_t block,
1148 extern errcode_t ext2fs_read_ext_attr3(ext2_filsys fs, blk64_t block,
1149 void *buf, ext2_ino_t inum);
1150 extern errcode_t ext2fs_write_ext_attr(ext2_filsys fs, blk_t block,
1152 extern errcode_t ext2fs_write_ext_attr2(ext2_filsys fs, blk64_t block,
1154 extern errcode_t ext2fs_write_ext_attr3(ext2_filsys fs, blk64_t block,
1155 void *buf, ext2_ino_t inum);
1156 extern errcode_t ext2fs_adjust_ea_refcount(ext2_filsys fs, blk_t blk,
1158 int adjust, __u32 *newcount);
1159 extern errcode_t ext2fs_adjust_ea_refcount2(ext2_filsys fs, blk64_t blk,
1161 int adjust, __u32 *newcount);
1162 extern errcode_t ext2fs_adjust_ea_refcount3(ext2_filsys fs, blk64_t blk,
1164 int adjust, __u32 *newcount,
1166 errcode_t ext2fs_xattrs_write(struct ext2_xattr_handle *handle);
1167 errcode_t ext2fs_xattrs_read(struct ext2_xattr_handle *handle);
1168 errcode_t ext2fs_xattrs_iterate(struct ext2_xattr_handle *h,
1169 int (*func)(char *name, char *value,
1170 size_t value_len, void *data),
1172 errcode_t ext2fs_xattr_get(struct ext2_xattr_handle *h, const char *key,
1173 void **value, size_t *value_len);
1174 errcode_t ext2fs_xattr_set(struct ext2_xattr_handle *handle,
1178 errcode_t ext2fs_xattr_remove(struct ext2_xattr_handle *handle,
1180 errcode_t ext2fs_xattrs_open(ext2_filsys fs, ext2_ino_t ino,
1181 struct ext2_xattr_handle **handle);
1182 errcode_t ext2fs_xattrs_close(struct ext2_xattr_handle **handle);
1183 errcode_t ext2fs_free_ext_attr(ext2_filsys fs, ext2_ino_t ino,
1184 struct ext2_inode_large *inode);
1185 size_t ext2fs_xattrs_count(struct ext2_xattr_handle *handle);
1186 errcode_t ext2fs_xattr_inode_max_size(ext2_filsys fs, ext2_ino_t ino,
1190 extern errcode_t ext2fs_extent_header_verify(void *ptr, int size);
1191 extern errcode_t ext2fs_extent_open(ext2_filsys fs, ext2_ino_t ino,
1192 ext2_extent_handle_t *handle);
1193 extern errcode_t ext2fs_extent_open2(ext2_filsys fs, ext2_ino_t ino,
1194 struct ext2_inode *inode,
1195 ext2_extent_handle_t *ret_handle);
1196 extern void ext2fs_extent_free(ext2_extent_handle_t handle);
1197 extern errcode_t ext2fs_extent_get(ext2_extent_handle_t handle,
1198 int flags, struct ext2fs_extent *extent);
1199 extern errcode_t ext2fs_extent_node_split(ext2_extent_handle_t handle);
1200 extern errcode_t ext2fs_extent_replace(ext2_extent_handle_t handle, int flags,
1201 struct ext2fs_extent *extent);
1202 extern errcode_t ext2fs_extent_insert(ext2_extent_handle_t handle, int flags,
1203 struct ext2fs_extent *extent);
1204 extern errcode_t ext2fs_extent_set_bmap(ext2_extent_handle_t handle,
1205 blk64_t logical, blk64_t physical,
1207 extern errcode_t ext2fs_extent_delete(ext2_extent_handle_t handle, int flags);
1208 extern errcode_t ext2fs_extent_get_info(ext2_extent_handle_t handle,
1209 struct ext2_extent_info *info);
1210 extern errcode_t ext2fs_extent_goto(ext2_extent_handle_t handle,
1212 extern errcode_t ext2fs_extent_goto2(ext2_extent_handle_t handle,
1213 int leaf_level, blk64_t blk);
1214 extern errcode_t ext2fs_extent_fix_parents(ext2_extent_handle_t handle);
1217 extern errcode_t ext2fs_file_open2(ext2_filsys fs, ext2_ino_t ino,
1218 struct ext2_inode *inode,
1219 int flags, ext2_file_t *ret);
1220 extern errcode_t ext2fs_file_open(ext2_filsys fs, ext2_ino_t ino,
1221 int flags, ext2_file_t *ret);
1222 extern ext2_filsys ext2fs_file_get_fs(ext2_file_t file);
1223 struct ext2_inode *ext2fs_file_get_inode(ext2_file_t file);
1224 extern ext2_ino_t ext2fs_file_get_inode_num(ext2_file_t file);
1225 extern errcode_t ext2fs_file_close(ext2_file_t file);
1226 extern errcode_t ext2fs_file_flush(ext2_file_t file);
1227 extern errcode_t ext2fs_file_read(ext2_file_t file, void *buf,
1228 unsigned int wanted, unsigned int *got);
1229 extern errcode_t ext2fs_file_write(ext2_file_t file, const void *buf,
1230 unsigned int nbytes, unsigned int *written);
1231 extern errcode_t ext2fs_file_llseek(ext2_file_t file, __u64 offset,
1232 int whence, __u64 *ret_pos);
1233 extern errcode_t ext2fs_file_lseek(ext2_file_t file, ext2_off_t offset,
1234 int whence, ext2_off_t *ret_pos);
1235 errcode_t ext2fs_file_get_lsize(ext2_file_t file, __u64 *ret_size);
1236 extern ext2_off_t ext2fs_file_get_size(ext2_file_t file);
1237 extern errcode_t ext2fs_file_set_size(ext2_file_t file, ext2_off_t size);
1238 extern errcode_t ext2fs_file_set_size2(ext2_file_t file, ext2_off64_t size);
1241 extern char *ext2fs_find_block_device(dev_t device);
1244 extern errcode_t ext2fs_sync_device(int fd, int flushb);
1247 extern void ext2fs_free(ext2_filsys fs);
1248 extern void ext2fs_free_dblist(ext2_dblist dblist);
1249 extern void ext2fs_badblocks_list_free(ext2_badblocks_list bb);
1250 extern void ext2fs_u32_list_free(ext2_u32_list bb);
1253 extern void ext2fs_free_generic_bitmap(ext2fs_inode_bitmap bitmap);
1254 extern errcode_t ext2fs_make_generic_bitmap(errcode_t magic, ext2_filsys fs,
1255 __u32 start, __u32 end,
1257 const char *descr, char *init_map,
1258 ext2fs_generic_bitmap *ret);
1259 extern errcode_t ext2fs_allocate_generic_bitmap(__u32 start,
1263 ext2fs_generic_bitmap *ret);
1264 extern errcode_t ext2fs_copy_generic_bitmap(ext2fs_generic_bitmap src,
1265 ext2fs_generic_bitmap *dest);
1266 extern void ext2fs_clear_generic_bitmap(ext2fs_generic_bitmap bitmap);
1267 extern errcode_t ext2fs_fudge_generic_bitmap_end(ext2fs_inode_bitmap bitmap,
1272 extern void ext2fs_set_generic_bitmap_padding(ext2fs_generic_bitmap map);
1273 extern errcode_t ext2fs_resize_generic_bitmap(errcode_t magic,
1276 ext2fs_generic_bitmap bmap);
1277 extern errcode_t ext2fs_compare_generic_bitmap(errcode_t magic, errcode_t neq,
1278 ext2fs_generic_bitmap bm1,
1279 ext2fs_generic_bitmap bm2);
1280 extern errcode_t ext2fs_get_generic_bitmap_range(ext2fs_generic_bitmap bmap,
1282 __u32 start, __u32 num,
1284 extern errcode_t ext2fs_set_generic_bitmap_range(ext2fs_generic_bitmap bmap,
1286 __u32 start, __u32 num,
1288 extern errcode_t ext2fs_find_first_zero_generic_bitmap(ext2fs_generic_bitmap bitmap,
1289 __u32 start, __u32 end,
1291 extern errcode_t ext2fs_find_first_set_generic_bitmap(ext2fs_generic_bitmap bitmap,
1292 __u32 start, __u32 end,
1295 /* gen_bitmap64.c */
1296 void ext2fs_free_generic_bmap(ext2fs_generic_bitmap bmap);
1297 errcode_t ext2fs_alloc_generic_bmap(ext2_filsys fs, errcode_t magic,
1298 int type, __u64 start, __u64 end,
1301 ext2fs_generic_bitmap *ret);
1302 errcode_t ext2fs_copy_generic_bmap(ext2fs_generic_bitmap src,
1303 ext2fs_generic_bitmap *dest);
1304 void ext2fs_clear_generic_bmap(ext2fs_generic_bitmap bitmap);
1305 errcode_t ext2fs_fudge_generic_bmap_end(ext2fs_generic_bitmap bitmap,
1307 __u64 end, __u64 *oend);
1308 void ext2fs_set_generic_bmap_padding(ext2fs_generic_bitmap bmap);
1309 errcode_t ext2fs_resize_generic_bmap(ext2fs_generic_bitmap bmap,
1311 __u64 new_real_end);
1312 errcode_t ext2fs_compare_generic_bmap(errcode_t neq,
1313 ext2fs_generic_bitmap bm1,
1314 ext2fs_generic_bitmap bm2);
1315 errcode_t ext2fs_get_generic_bmap_range(ext2fs_generic_bitmap bmap,
1316 __u64 start, unsigned int num,
1318 errcode_t ext2fs_set_generic_bmap_range(ext2fs_generic_bitmap bmap,
1319 __u64 start, unsigned int num,
1321 errcode_t ext2fs_convert_subcluster_bitmap(ext2_filsys fs,
1322 ext2fs_block_bitmap *bitmap);
1324 /* get_num_dirs.c */
1325 extern errcode_t ext2fs_get_num_dirs(ext2_filsys fs, ext2_ino_t *ret_num_dirs);
1328 extern errcode_t ext2fs_get_device_size(const char *file, int blocksize,
1330 extern errcode_t ext2fs_get_device_size2(const char *file, int blocksize,
1331 blk64_t *retblocks);
1334 extern int ext2fs_get_dio_alignment(int fd);
1335 errcode_t ext2fs_get_device_sectsize(const char *file, int *sectsize);
1336 errcode_t ext2fs_get_device_phys_sectsize(const char *file, int *sectsize);
1339 errcode_t ext2fs_iblk_add_blocks(ext2_filsys fs, struct ext2_inode *inode,
1340 blk64_t num_blocks);
1341 errcode_t ext2fs_iblk_sub_blocks(ext2_filsys fs, struct ext2_inode *inode,
1342 blk64_t num_blocks);
1343 errcode_t ext2fs_iblk_set(ext2_filsys fs, struct ext2_inode *inode, blk64_t b);
1346 extern errcode_t ext2fs_image_inode_write(ext2_filsys fs, int fd, int flags);
1347 extern errcode_t ext2fs_image_inode_read(ext2_filsys fs, int fd, int flags);
1348 extern errcode_t ext2fs_image_super_write(ext2_filsys fs, int fd, int flags);
1349 extern errcode_t ext2fs_image_super_read(ext2_filsys fs, int fd, int flags);
1350 extern errcode_t ext2fs_image_bitmap_write(ext2_filsys fs, int fd, int flags);
1351 extern errcode_t ext2fs_image_bitmap_read(ext2_filsys fs, int fd, int flags);
1354 errcode_t ext2fs_read_ind_block(ext2_filsys fs, blk_t blk, void *buf);
1355 errcode_t ext2fs_write_ind_block(ext2_filsys fs, blk_t blk, void *buf);
1358 extern errcode_t ext2fs_initialize(const char *name, int flags,
1359 struct ext2_super_block *param,
1360 io_manager manager, ext2_filsys *ret_fs);
1363 extern void ext2fs_free_icount(ext2_icount_t icount);
1364 extern errcode_t ext2fs_create_icount_tdb(ext2_filsys fs, char *tdb_dir,
1365 int flags, ext2_icount_t *ret);
1366 extern errcode_t ext2fs_create_icount2(ext2_filsys fs, int flags,
1368 ext2_icount_t hint, ext2_icount_t *ret);
1369 extern errcode_t ext2fs_create_icount(ext2_filsys fs, int flags,
1371 ext2_icount_t *ret);
1372 extern errcode_t ext2fs_icount_fetch(ext2_icount_t icount, ext2_ino_t ino,
1374 extern errcode_t ext2fs_icount_increment(ext2_icount_t icount, ext2_ino_t ino,
1376 extern errcode_t ext2fs_icount_decrement(ext2_icount_t icount, ext2_ino_t ino,
1378 extern errcode_t ext2fs_icount_store(ext2_icount_t icount, ext2_ino_t ino,
1380 extern ext2_ino_t ext2fs_get_icount_size(ext2_icount_t icount);
1381 errcode_t ext2fs_icount_validate(ext2_icount_t icount, FILE *);
1385 extern errcode_t ext2fs_get_memalign(unsigned long size,
1386 unsigned long align, void *ptr);
1389 extern void ext2fs_free_inode_cache(struct ext2_inode_cache *icache);
1390 extern errcode_t ext2fs_flush_icache(ext2_filsys fs);
1391 extern errcode_t ext2fs_get_next_inode_full(ext2_inode_scan scan,
1393 struct ext2_inode *inode,
1395 extern errcode_t ext2fs_open_inode_scan(ext2_filsys fs, int buffer_blocks,
1396 ext2_inode_scan *ret_scan);
1397 extern void ext2fs_close_inode_scan(ext2_inode_scan scan);
1398 extern errcode_t ext2fs_get_next_inode(ext2_inode_scan scan, ext2_ino_t *ino,
1399 struct ext2_inode *inode);
1400 extern errcode_t ext2fs_inode_scan_goto_blockgroup(ext2_inode_scan scan,
1402 extern void ext2fs_set_inode_callback
1403 (ext2_inode_scan scan,
1404 errcode_t (*done_group)(ext2_filsys fs,
1405 ext2_inode_scan scan,
1408 void *done_group_data);
1409 extern int ext2fs_inode_scan_flags(ext2_inode_scan scan, int set_flags,
1411 extern errcode_t ext2fs_read_inode_full(ext2_filsys fs, ext2_ino_t ino,
1412 struct ext2_inode * inode,
1414 extern errcode_t ext2fs_read_inode (ext2_filsys fs, ext2_ino_t ino,
1415 struct ext2_inode * inode);
1416 extern errcode_t ext2fs_write_inode_full(ext2_filsys fs, ext2_ino_t ino,
1417 struct ext2_inode * inode,
1419 extern errcode_t ext2fs_write_inode(ext2_filsys fs, ext2_ino_t ino,
1420 struct ext2_inode * inode);
1421 extern errcode_t ext2fs_write_new_inode(ext2_filsys fs, ext2_ino_t ino,
1422 struct ext2_inode * inode);
1423 extern errcode_t ext2fs_get_blocks(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
1424 extern errcode_t ext2fs_check_directory(ext2_filsys fs, ext2_ino_t ino);
1427 extern io_manager inode_io_manager;
1428 extern errcode_t ext2fs_inode_io_intern(ext2_filsys fs, ext2_ino_t ino,
1430 extern errcode_t ext2fs_inode_io_intern2(ext2_filsys fs, ext2_ino_t ino,
1431 struct ext2_inode *inode,
1435 extern errcode_t ext2fs_check_if_mounted(const char *file, int *mount_flags);
1436 extern errcode_t ext2fs_check_mount_point(const char *device, int *mount_flags,
1437 char *mtpt, int mtlen);
1441 * NOTE: This function removes from an inode the blocks "start", "end", and
1442 * every block in between.
1444 extern errcode_t ext2fs_punch(ext2_filsys fs, ext2_ino_t ino,
1445 struct ext2_inode *inode,
1446 char *block_buf, blk64_t start,
1450 extern errcode_t ext2fs_lookup(ext2_filsys fs, ext2_ino_t dir, const char *name,
1451 int namelen, char *buf, ext2_ino_t *inode);
1452 extern errcode_t ext2fs_namei(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1453 const char *name, ext2_ino_t *inode);
1454 errcode_t ext2fs_namei_follow(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1455 const char *name, ext2_ino_t *inode);
1456 extern errcode_t ext2fs_follow_link(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1457 ext2_ino_t inode, ext2_ino_t *res_inode);
1460 int ext2fs_native_flag(void);
1463 extern errcode_t ext2fs_new_dir_block(ext2_filsys fs, ext2_ino_t dir_ino,
1464 ext2_ino_t parent_ino, char **block);
1465 extern errcode_t ext2fs_new_dir_inline_data(ext2_filsys fs, ext2_ino_t dir_ino,
1466 ext2_ino_t parent_ino, __u32 *iblock);
1469 extern errcode_t ext2fs_mkdir(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t inum,
1473 extern errcode_t ext2fs_zero_blocks(ext2_filsys fs, blk_t blk, int num,
1474 blk_t *ret_blk, int *ret_count);
1475 extern errcode_t ext2fs_zero_blocks2(ext2_filsys fs, blk64_t blk, int num,
1476 blk64_t *ret_blk, int *ret_count);
1477 extern errcode_t ext2fs_create_journal_superblock(ext2_filsys fs,
1478 __u32 num_blocks, int flags,
1480 extern errcode_t ext2fs_add_journal_device(ext2_filsys fs,
1481 ext2_filsys journal_dev);
1482 extern errcode_t ext2fs_add_journal_inode(ext2_filsys fs, blk_t num_blocks,
1484 extern errcode_t ext2fs_add_journal_inode2(ext2_filsys fs, blk_t num_blocks,
1485 blk64_t goal, int flags);
1486 extern int ext2fs_default_journal_size(__u64 num_blocks);
1489 extern errcode_t ext2fs_open(const char *name, int flags, int superblock,
1490 unsigned int block_size, io_manager manager,
1491 ext2_filsys *ret_fs);
1492 extern errcode_t ext2fs_open2(const char *name, const char *io_options,
1493 int flags, int superblock,
1494 unsigned int block_size, io_manager manager,
1495 ext2_filsys *ret_fs);
1497 * The dgrp_t argument to these two functions is not actually a group number
1498 * but a block number offset within a group table! Convert with the formula
1499 * (group_number / groups_per_block).
1501 extern blk64_t ext2fs_descriptor_block_loc2(ext2_filsys fs,
1502 blk64_t group_block, dgrp_t i);
1503 extern blk_t ext2fs_descriptor_block_loc(ext2_filsys fs, blk_t group_block,
1505 errcode_t ext2fs_get_data_io(ext2_filsys fs, io_channel *old_io);
1506 errcode_t ext2fs_set_data_io(ext2_filsys fs, io_channel new_io);
1507 errcode_t ext2fs_rewrite_to_io(ext2_filsys fs, io_channel new_io);
1509 /* get_pathname.c */
1510 extern errcode_t ext2fs_get_pathname(ext2_filsys fs, ext2_ino_t dir, ext2_ino_t ino,
1514 errcode_t ext2fs_link(ext2_filsys fs, ext2_ino_t dir, const char *name,
1515 ext2_ino_t ino, int flags);
1516 errcode_t ext2fs_unlink(ext2_filsys fs, ext2_ino_t dir, const char *name,
1517 ext2_ino_t ino, int flags);
1520 errcode_t ext2fs_symlink(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t ino,
1521 const char *name, char *target);
1524 errcode_t ext2fs_mmp_read(ext2_filsys fs, blk64_t mmp_blk, void *buf);
1525 errcode_t ext2fs_mmp_write(ext2_filsys fs, blk64_t mmp_blk, void *buf);
1526 errcode_t ext2fs_mmp_clear(ext2_filsys fs);
1527 errcode_t ext2fs_mmp_init(ext2_filsys fs);
1528 errcode_t ext2fs_mmp_start(ext2_filsys fs);
1529 errcode_t ext2fs_mmp_update(ext2_filsys fs);
1530 errcode_t ext2fs_mmp_update2(ext2_filsys fs, int immediately);
1531 errcode_t ext2fs_mmp_stop(ext2_filsys fs);
1532 unsigned ext2fs_mmp_new_seq(void);
1535 extern errcode_t ext2fs_read_bb_inode(ext2_filsys fs,
1536 ext2_badblocks_list *bb_list);
1538 /* read_bb_file.c */
1539 extern errcode_t ext2fs_read_bb_FILE2(ext2_filsys fs, FILE *f,
1540 ext2_badblocks_list *bb_list,
1542 void (*invalid)(ext2_filsys fs,
1546 extern errcode_t ext2fs_read_bb_FILE(ext2_filsys fs, FILE *f,
1547 ext2_badblocks_list *bb_list,
1548 void (*invalid)(ext2_filsys fs,
1552 extern errcode_t ext2fs_create_resize_inode(ext2_filsys fs);
1555 extern errcode_t ext2fs_dirent_swab_in2(ext2_filsys fs, char *buf, size_t size,
1557 extern errcode_t ext2fs_dirent_swab_in(ext2_filsys fs, char *buf, int flags);
1558 extern errcode_t ext2fs_dirent_swab_out2(ext2_filsys fs, char *buf, size_t size,
1560 extern errcode_t ext2fs_dirent_swab_out(ext2_filsys fs, char *buf, int flags);
1561 extern void ext2fs_swap_ext_attr(char *to, char *from, int bufsize,
1563 extern void ext2fs_swap_ext_attr_header(struct ext2_ext_attr_header *to_header,
1564 struct ext2_ext_attr_header *from_hdr);
1565 extern void ext2fs_swap_ext_attr_entry(struct ext2_ext_attr_entry *to_entry,
1566 struct ext2_ext_attr_entry *from_entry);
1567 extern void ext2fs_swap_super(struct ext2_super_block * super);
1568 extern void ext2fs_swap_group_desc(struct ext2_group_desc *gdp);
1569 extern void ext2fs_swap_group_desc2(ext2_filsys, struct ext2_group_desc *gdp);
1570 extern void ext2fs_swap_inode_full(ext2_filsys fs, struct ext2_inode_large *t,
1571 struct ext2_inode_large *f, int hostorder,
1573 extern void ext2fs_swap_inode(ext2_filsys fs,struct ext2_inode *t,
1574 struct ext2_inode *f, int hostorder);
1575 extern void ext2fs_swap_mmp(struct mmp_struct *mmp);
1578 extern int ext2fs_open_file(const char *pathname, int flags, mode_t mode);
1579 extern int ext2fs_stat(const char *path, ext2fs_struct_stat *buf);
1580 extern int ext2fs_fstat(int fd, ext2fs_struct_stat *buf);
1583 extern int ext2fs_inode_has_valid_blocks(struct ext2_inode *inode);
1584 extern int ext2fs_inode_has_valid_blocks2(ext2_filsys fs,
1585 struct ext2_inode *inode);
1588 extern int ext2fs_parse_version_string(const char *ver_string);
1589 extern int ext2fs_get_library_version(const char **ver_string,
1590 const char **date_string);
1592 /* write_bb_file.c */
1593 extern errcode_t ext2fs_write_bb_FILE(ext2_badblocks_list bb_list,
1598 /* inline functions */
1599 #ifdef NO_INLINE_FUNCS
1600 extern void ext2fs_init_csum_seed(ext2_filsys fs);
1601 extern errcode_t ext2fs_get_mem(unsigned long size, void *ptr);
1602 extern errcode_t ext2fs_get_memzero(unsigned long size, void *ptr);
1603 extern errcode_t ext2fs_get_array(unsigned long count,
1604 unsigned long size, void *ptr);
1605 extern errcode_t ext2fs_get_arrayzero(unsigned long count,
1606 unsigned long size, void *ptr);
1607 extern errcode_t ext2fs_free_mem(void *ptr);
1608 extern errcode_t ext2fs_resize_mem(unsigned long old_size,
1609 unsigned long size, void *ptr);
1610 extern void ext2fs_mark_super_dirty(ext2_filsys fs);
1611 extern void ext2fs_mark_changed(ext2_filsys fs);
1612 extern int ext2fs_test_changed(ext2_filsys fs);
1613 extern void ext2fs_mark_valid(ext2_filsys fs);
1614 extern void ext2fs_unmark_valid(ext2_filsys fs);
1615 extern int ext2fs_test_valid(ext2_filsys fs);
1616 extern void ext2fs_mark_ib_dirty(ext2_filsys fs);
1617 extern void ext2fs_mark_bb_dirty(ext2_filsys fs);
1618 extern int ext2fs_test_ib_dirty(ext2_filsys fs);
1619 extern int ext2fs_test_bb_dirty(ext2_filsys fs);
1620 extern dgrp_t ext2fs_group_of_blk(ext2_filsys fs, blk_t blk);
1621 extern dgrp_t ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino);
1622 extern blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group);
1623 extern blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group);
1624 extern blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
1625 struct ext2_inode *inode);
1626 extern unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b);
1627 extern __u64 ext2fs_div64_ceil(__u64 a, __u64 b);
1631 * The actual inlined functions definitions themselves...
1633 * If NO_INLINE_FUNCS is defined, then we won't try to do inline
1636 #if (defined(INCLUDE_INLINE_FUNCS) || !defined(NO_INLINE_FUNCS))
1637 #ifdef INCLUDE_INLINE_FUNCS
1638 #define _INLINE_ extern
1640 #if (__STDC_VERSION__ >= 199901L)
1641 #define _INLINE_ inline
1644 #define _INLINE_ extern __inline__
1645 #else /* For Watcom C */
1646 #define _INLINE_ extern inline
1647 #endif /* __GNUC__ */
1648 #endif /* __STDC_VERSION__ >= 199901L */
1651 _INLINE_ void ext2fs_init_csum_seed(ext2_filsys fs)
1653 if (!EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
1654 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
1657 fs->csum_seed = ext2fs_crc32c_le(~0, fs->super->s_uuid,
1658 sizeof(fs->super->s_uuid));
1661 #ifndef EXT2_CUSTOM_MEMORY_ROUTINES
1664 * Allocate memory. The 'ptr' arg must point to a pointer.
1666 _INLINE_ errcode_t ext2fs_get_mem(unsigned long size, void *ptr)
1672 return EXT2_ET_NO_MEMORY;
1673 memcpy(ptr, &pp, sizeof (pp));
1677 _INLINE_ errcode_t ext2fs_get_memzero(unsigned long size, void *ptr)
1683 return EXT2_ET_NO_MEMORY;
1684 memset(pp, 0, size);
1685 memcpy(ptr, &pp, sizeof(pp));
1689 _INLINE_ errcode_t ext2fs_get_array(unsigned long count, unsigned long size, void *ptr)
1691 if (count && (-1UL)/count<size)
1692 return EXT2_ET_NO_MEMORY;
1693 return ext2fs_get_mem(count*size, ptr);
1696 _INLINE_ errcode_t ext2fs_get_arrayzero(unsigned long count,
1697 unsigned long size, void *ptr)
1701 if (count && (-1UL)/count<size)
1702 return EXT2_ET_NO_MEMORY;
1703 pp = calloc(count, size);
1705 return EXT2_ET_NO_MEMORY;
1706 memcpy(ptr, &pp, sizeof(pp));
1711 * Free memory. The 'ptr' arg must point to a pointer.
1713 _INLINE_ errcode_t ext2fs_free_mem(void *ptr)
1717 memcpy(&p, ptr, sizeof(p));
1720 memcpy(ptr, &p, sizeof(p));
1725 * Resize memory. The 'ptr' arg must point to a pointer.
1727 _INLINE_ errcode_t ext2fs_resize_mem(unsigned long EXT2FS_ATTR((unused)) old_size,
1728 unsigned long size, void *ptr)
1732 /* Use "memcpy" for pointer assignments here to avoid problems
1733 * with C99 strict type aliasing rules. */
1734 memcpy(&p, ptr, sizeof(p));
1735 p = realloc(p, size);
1737 return EXT2_ET_NO_MEMORY;
1738 memcpy(ptr, &p, sizeof(p));
1741 #endif /* Custom memory routines */
1744 * Mark a filesystem superblock as dirty
1746 _INLINE_ void ext2fs_mark_super_dirty(ext2_filsys fs)
1748 fs->flags |= EXT2_FLAG_DIRTY | EXT2_FLAG_CHANGED;
1752 * Mark a filesystem as changed
1754 _INLINE_ void ext2fs_mark_changed(ext2_filsys fs)
1756 fs->flags |= EXT2_FLAG_CHANGED;
1760 * Check to see if a filesystem has changed
1762 _INLINE_ int ext2fs_test_changed(ext2_filsys fs)
1764 return (fs->flags & EXT2_FLAG_CHANGED);
1768 * Mark a filesystem as valid
1770 _INLINE_ void ext2fs_mark_valid(ext2_filsys fs)
1772 fs->flags |= EXT2_FLAG_VALID;
1776 * Mark a filesystem as NOT valid
1778 _INLINE_ void ext2fs_unmark_valid(ext2_filsys fs)
1780 fs->flags &= ~EXT2_FLAG_VALID;
1784 * Check to see if a filesystem is valid
1786 _INLINE_ int ext2fs_test_valid(ext2_filsys fs)
1788 return (fs->flags & EXT2_FLAG_VALID);
1792 * Mark the inode bitmap as dirty
1794 _INLINE_ void ext2fs_mark_ib_dirty(ext2_filsys fs)
1796 fs->flags |= EXT2_FLAG_IB_DIRTY | EXT2_FLAG_CHANGED;
1800 * Mark the block bitmap as dirty
1802 _INLINE_ void ext2fs_mark_bb_dirty(ext2_filsys fs)
1804 fs->flags |= EXT2_FLAG_BB_DIRTY | EXT2_FLAG_CHANGED;
1808 * Check to see if a filesystem's inode bitmap is dirty
1810 _INLINE_ int ext2fs_test_ib_dirty(ext2_filsys fs)
1812 return (fs->flags & EXT2_FLAG_IB_DIRTY);
1816 * Check to see if a filesystem's block bitmap is dirty
1818 _INLINE_ int ext2fs_test_bb_dirty(ext2_filsys fs)
1820 return (fs->flags & EXT2_FLAG_BB_DIRTY);
1824 * Return the group # of a block
1826 _INLINE_ dgrp_t ext2fs_group_of_blk(ext2_filsys fs, blk_t blk)
1828 return ext2fs_group_of_blk2(fs, blk);
1831 * Return the group # of an inode number
1833 _INLINE_ dgrp_t ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino)
1835 return (ino - 1) / fs->super->s_inodes_per_group;
1839 * Return the first block (inclusive) in a group
1841 _INLINE_ blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group)
1843 return (blk_t) ext2fs_group_first_block2(fs, group);
1847 * Return the last block (inclusive) in a group
1849 _INLINE_ blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group)
1851 return (blk_t) ext2fs_group_last_block2(fs, group);
1854 _INLINE_ blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
1855 struct ext2_inode *inode)
1857 return (blk_t) ext2fs_inode_data_blocks2(fs, inode);
1861 * This is an efficient, overflow safe way of calculating ceil((1.0 * a) / b)
1863 _INLINE_ unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b)
1867 return ((a - 1) / b) + 1;
1870 _INLINE_ __u64 ext2fs_div64_ceil(__u64 a, __u64 b)
1874 return ((a - 1) / b) + 1;
1877 _INLINE_ int ext2fs_dirent_name_len(const struct ext2_dir_entry *entry)
1879 return entry->name_len & 0xff;
1882 _INLINE_ void ext2fs_dirent_set_name_len(struct ext2_dir_entry *entry, int len)
1884 entry->name_len = (entry->name_len & 0xff00) | (len & 0xff);
1887 _INLINE_ int ext2fs_dirent_file_type(const struct ext2_dir_entry *entry)
1889 return entry->name_len >> 8;
1892 _INLINE_ void ext2fs_dirent_set_file_type(struct ext2_dir_entry *entry, int type)
1894 entry->name_len = (entry->name_len & 0xff) | (type << 8);
1904 #endif /* _EXT2FS_EXT2FS_H */