4 * Copyright (C) 1993, 1994, 1995, 1996 Theodore Ts'o.
7 * This file may be redistributed under the terms of the GNU Library
8 * General Public License, version 2.
12 #ifndef _EXT2FS_EXT2FS_H
13 #define _EXT2FS_EXT2FS_H
16 #define EXT2FS_ATTR(x) __attribute__(x)
18 #define EXT2FS_ATTR(x)
22 #define EXT2FS_NO_TDB_UNUSED
24 #define EXT2FS_NO_TDB_UNUSED EXT2FS_ATTR((unused))
32 * Non-GNU C compilers won't necessarily understand inline
34 #if (!defined(__GNUC__) && !defined(__WATCOMC__))
35 #define NO_INLINE_FUNCS
39 * Where the master copy of the superblock is located, and how big
40 * superblocks are supposed to be. We define SUPERBLOCK_SIZE because
41 * the size of the superblock structure is not necessarily trustworthy
42 * (some versions have the padding set up so that the superblock is
45 #define SUPERBLOCK_OFFSET 1024
46 #define SUPERBLOCK_SIZE 1024
48 #define UUID_STR_SIZE 37
51 * The last ext2fs revision level that this version of the library is
54 #define EXT2_LIB_CURRENT_REV EXT2_DYNAMIC_REV
56 #ifdef HAVE_SYS_TYPES_H
57 #include <sys/types.h>
66 #if EXT2_FLAT_INCLUDES
69 #include "ext3_extents.h"
71 #include <ext2fs/ext2_types.h>
72 #include <ext2fs/ext2_fs.h>
73 #include <ext2fs/ext3_extents.h>
74 #endif /* EXT2_FLAT_INCLUDES */
76 typedef __u32 __bitwise ext2_ino_t;
77 typedef __u32 __bitwise blk_t;
78 typedef __u64 __bitwise blk64_t;
79 typedef __u32 __bitwise dgrp_t;
80 typedef __u32 __bitwise ext2_off_t;
81 typedef __u64 __bitwise ext2_off64_t;
82 typedef __s64 __bitwise e2_blkcnt_t;
83 typedef __u32 __bitwise ext2_dirhash_t;
85 #if EXT2_FLAT_INCLUDES
89 #include "ext2_ext_attr.h"
91 #include <et/com_err.h>
92 #include <ext2fs/ext2_io.h>
93 #include <ext2fs/ext2_err.h>
94 #include <ext2fs/ext2_ext_attr.h>
98 * Portability help for Microsoft Visual C++
101 #define EXT2_QSORT_TYPE int __cdecl
103 #define EXT2_QSORT_TYPE int
106 typedef struct struct_ext2_filsys *ext2_filsys;
108 #define EXT2FS_MARK_ERROR 0
109 #define EXT2FS_UNMARK_ERROR 1
110 #define EXT2FS_TEST_ERROR 2
112 typedef struct ext2fs_struct_generic_bitmap *ext2fs_generic_bitmap;
113 typedef struct ext2fs_struct_generic_bitmap *ext2fs_inode_bitmap;
114 typedef struct ext2fs_struct_generic_bitmap *ext2fs_block_bitmap;
116 #define EXT2_FIRST_INODE(s) EXT2_FIRST_INO(s)
120 * Badblocks list definitions
123 typedef struct ext2_struct_u32_list *ext2_badblocks_list;
124 typedef struct ext2_struct_u32_iterate *ext2_badblocks_iterate;
126 typedef struct ext2_struct_u32_list *ext2_u32_list;
127 typedef struct ext2_struct_u32_iterate *ext2_u32_iterate;
130 typedef struct ext2_struct_u32_list *badblocks_list;
131 typedef struct ext2_struct_u32_iterate *badblocks_iterate;
133 #define BADBLOCKS_FLAG_DIRTY 1
136 * ext2_dblist structure and abstractions (see dblist.c)
138 struct ext2_db_entry2 {
141 e2_blkcnt_t blockcnt;
144 /* Ye Olde 32-bit version */
145 struct ext2_db_entry {
151 typedef struct ext2_struct_dblist *ext2_dblist;
153 #define DBLIST_ABORT 1
156 * ext2_fileio definitions
159 #define EXT2_FILE_WRITE 0x0001
160 #define EXT2_FILE_CREATE 0x0002
162 #define EXT2_FILE_MASK 0x00FF
164 #define EXT2_FILE_BUF_DIRTY 0x4000
165 #define EXT2_FILE_BUF_VALID 0x2000
167 typedef struct ext2_file *ext2_file_t;
169 #define EXT2_SEEK_SET 0
170 #define EXT2_SEEK_CUR 1
171 #define EXT2_SEEK_END 2
174 * Flags for the ext2_filsys structure and for ext2fs_open()
176 #define EXT2_FLAG_RW 0x01
177 #define EXT2_FLAG_CHANGED 0x02
178 #define EXT2_FLAG_DIRTY 0x04
179 #define EXT2_FLAG_VALID 0x08
180 #define EXT2_FLAG_IB_DIRTY 0x10
181 #define EXT2_FLAG_BB_DIRTY 0x20
182 #define EXT2_FLAG_SWAP_BYTES 0x40
183 #define EXT2_FLAG_SWAP_BYTES_READ 0x80
184 #define EXT2_FLAG_SWAP_BYTES_WRITE 0x100
185 #define EXT2_FLAG_MASTER_SB_ONLY 0x200
186 #define EXT2_FLAG_FORCE 0x400
187 #define EXT2_FLAG_SUPER_ONLY 0x800
188 #define EXT2_FLAG_JOURNAL_DEV_OK 0x1000
189 #define EXT2_FLAG_IMAGE_FILE 0x2000
190 #define EXT2_FLAG_EXCLUSIVE 0x4000
191 #define EXT2_FLAG_SOFTSUPP_FEATURES 0x8000
192 #define EXT2_FLAG_NOFREE_ON_ERROR 0x10000
193 #define EXT2_FLAG_64BITS 0x20000
194 #define EXT2_FLAG_PRINT_PROGRESS 0x40000
195 #define EXT2_FLAG_DIRECT_IO 0x80000
196 #define EXT2_FLAG_SKIP_MMP 0x100000
197 #define EXT2_FLAG_IGNORE_CSUM_ERRORS 0x200000
200 * Special flag in the ext2 inode i_flag field that means that this is
201 * a new inode. (So that ext2_write_inode() can clear extra fields.)
203 #define EXT2_NEW_INODE_FL 0x80000000
206 * Flags for mkjournal
208 #define EXT2_MKJOURNAL_V1_SUPER 0x0000001 /* create V1 superblock (deprecated) */
209 #define EXT2_MKJOURNAL_LAZYINIT 0x0000002 /* don't zero journal inode before use*/
210 #define EXT2_MKJOURNAL_NO_MNT_CHECK 0x0000004 /* don't check mount status */
212 struct opaque_ext2_group_desc;
214 struct struct_ext2_filsys {
219 struct ext2_super_block * super;
220 unsigned int blocksize;
222 dgrp_t group_desc_count;
223 unsigned long desc_blocks;
224 struct opaque_ext2_group_desc * group_desc;
225 unsigned int inode_blocks_per_group;
226 ext2fs_inode_bitmap inode_map;
227 ext2fs_block_bitmap block_map;
228 /* XXX FIXME-64: not 64-bit safe, but not used? */
229 errcode_t (*get_blocks)(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
230 errcode_t (*check_directory)(ext2_filsys fs, ext2_ino_t ino);
231 errcode_t (*write_bitmaps)(ext2_filsys fs);
232 errcode_t (*read_inode)(ext2_filsys fs, ext2_ino_t ino,
233 struct ext2_inode *inode);
234 errcode_t (*write_inode)(ext2_filsys fs, ext2_ino_t ino,
235 struct ext2_inode *inode);
236 ext2_badblocks_list badblocks;
238 __u32 stride; /* for mke2fs */
239 struct ext2_super_block * orig_super;
240 struct ext2_image_hdr * image_header;
243 int cluster_ratio_bits;
244 __u16 default_bitmap_type;
247 * Reserved for future expansion
252 * Reserved for the use of the calling application.
259 struct ext2_inode_cache *icache;
263 * More callback functions
265 errcode_t (*get_alloc_block)(ext2_filsys fs, blk64_t goal,
267 void (*block_alloc_stats)(ext2_filsys fs, blk64_t blk, int inuse);
270 * Buffers for Multiple mount protection(MMP) block.
277 * Time at which e2fsck last updated the MMP block.
279 long mmp_last_written;
281 /* progress operation functions */
282 struct ext2fs_progress_ops *progress_ops;
284 /* Precomputed FS UUID checksum for seeding other checksums */
287 io_channel journal_io;
290 /* New block range allocation hooks */
291 errcode_t (*new_range)(ext2_filsys fs, int flags, blk64_t goal,
292 blk64_t len, blk64_t *pblk, blk64_t *plen);
293 void (*block_alloc_stats_range)(ext2_filsys fs, blk64_t blk, blk_t num,
297 #if EXT2_FLAT_INCLUDES
298 #include "e2_bitops.h"
300 #include <ext2fs/bitops.h>
304 * 64-bit bitmap backend types
306 #define EXT2FS_BMAP64_BITARRAY 1
307 #define EXT2FS_BMAP64_RBTREE 2
308 #define EXT2FS_BMAP64_AUTODIR 3
311 * Return flags for the block iterator functions
313 #define BLOCK_CHANGED 1
314 #define BLOCK_ABORT 2
315 #define BLOCK_ERROR 4
316 #define BLOCK_INLINE_DATA_CHANGED 8
319 * Block interate flags
321 * BLOCK_FLAG_APPEND, or BLOCK_FLAG_HOLE, indicates that the interator
322 * function should be called on blocks where the block number is zero.
323 * This is used by ext2fs_expand_dir() to be able to add a new block
324 * to an inode. It can also be used for programs that want to be able
325 * to deal with files that contain "holes".
327 * BLOCK_FLAG_DEPTH_TRAVERSE indicates that the iterator function for
328 * the indirect, doubly indirect, etc. blocks should be called after
329 * all of the blocks contained in the indirect blocks are processed.
330 * This is useful if you are going to be deallocating blocks from an
333 * BLOCK_FLAG_DATA_ONLY indicates that the iterator function should be
334 * called for data blocks only.
336 * BLOCK_FLAG_READ_ONLY is a promise by the caller that it will not
337 * modify returned block number.
339 * BLOCK_FLAG_NO_LARGE is for internal use only. It informs
340 * ext2fs_block_iterate2 that large files won't be accepted.
342 #define BLOCK_FLAG_APPEND 1
343 #define BLOCK_FLAG_HOLE 1
344 #define BLOCK_FLAG_DEPTH_TRAVERSE 2
345 #define BLOCK_FLAG_DATA_ONLY 4
346 #define BLOCK_FLAG_READ_ONLY 8
348 #define BLOCK_FLAG_NO_LARGE 0x1000
351 * Magic "block count" return values for the block iterator function.
353 #define BLOCK_COUNT_IND (-1)
354 #define BLOCK_COUNT_DIND (-2)
355 #define BLOCK_COUNT_TIND (-3)
356 #define BLOCK_COUNT_TRANSLATOR (-4)
360 * Flags for ext2fs_move_blocks
362 #define EXT2_BMOVE_GET_DBLIST 0x0001
363 #define EXT2_BMOVE_DEBUG 0x0002
367 * Generic (non-filesystem layout specific) extents structure
370 #define EXT2_EXTENT_FLAGS_LEAF 0x0001
371 #define EXT2_EXTENT_FLAGS_UNINIT 0x0002
372 #define EXT2_EXTENT_FLAGS_SECOND_VISIT 0x0004
374 struct ext2fs_extent {
375 blk64_t e_pblk; /* first physical block */
376 blk64_t e_lblk; /* first logical block extent covers */
377 __u32 e_len; /* number of blocks covered by extent */
378 __u32 e_flags; /* extent flags */
381 typedef struct ext2_extent_handle *ext2_extent_handle_t;
382 typedef struct ext2_extent_path *ext2_extent_path_t;
385 * Flags used by ext2fs_extent_get()
387 #define EXT2_EXTENT_CURRENT 0x0000
388 #define EXT2_EXTENT_MOVE_MASK 0x000F
389 #define EXT2_EXTENT_ROOT 0x0001
390 #define EXT2_EXTENT_LAST_LEAF 0x0002
391 #define EXT2_EXTENT_FIRST_SIB 0x0003
392 #define EXT2_EXTENT_LAST_SIB 0x0004
393 #define EXT2_EXTENT_NEXT_SIB 0x0005
394 #define EXT2_EXTENT_PREV_SIB 0x0006
395 #define EXT2_EXTENT_NEXT_LEAF 0x0007
396 #define EXT2_EXTENT_PREV_LEAF 0x0008
397 #define EXT2_EXTENT_NEXT 0x0009
398 #define EXT2_EXTENT_PREV 0x000A
399 #define EXT2_EXTENT_UP 0x000B
400 #define EXT2_EXTENT_DOWN 0x000C
401 #define EXT2_EXTENT_DOWN_AND_LAST 0x000D
404 * Flags used by ext2fs_extent_insert()
406 #define EXT2_EXTENT_INSERT_AFTER 0x0001 /* insert after handle loc'n */
407 #define EXT2_EXTENT_INSERT_NOSPLIT 0x0002 /* insert may not cause split */
410 * Flags used by ext2fs_extent_delete()
412 #define EXT2_EXTENT_DELETE_KEEP_EMPTY 0x001 /* keep node if last extent gone */
415 * Flags used by ext2fs_extent_set_bmap()
417 #define EXT2_EXTENT_SET_BMAP_UNINIT 0x0001
420 * Data structure returned by ext2fs_extent_get_info()
422 struct ext2_extent_info {
432 __u32 max_uninit_len;
436 * Flags for directory block reading and writing functions
438 #define EXT2_DIRBLOCK_V2_STRUCT 0x0001
441 * Return flags for the directory iterator functions
443 #define DIRENT_CHANGED 1
444 #define DIRENT_ABORT 2
445 #define DIRENT_ERROR 3
448 * Directory iterator flags
451 #define DIRENT_FLAG_INCLUDE_EMPTY 1
452 #define DIRENT_FLAG_INCLUDE_REMOVED 2
453 #define DIRENT_FLAG_INCLUDE_CSUM 4
454 #define DIRENT_FLAG_INCLUDE_INLINE_DATA 8
456 #define DIRENT_DOT_FILE 1
457 #define DIRENT_DOT_DOT_FILE 2
458 #define DIRENT_OTHER_FILE 3
459 #define DIRENT_DELETED_FILE 4
460 #define DIRENT_CHECKSUM 5
463 * Inode scan definitions
465 typedef struct ext2_struct_inode_scan *ext2_inode_scan;
470 #define EXT2_SF_CHK_BADBLOCKS 0x0001
471 #define EXT2_SF_BAD_INODE_BLK 0x0002
472 #define EXT2_SF_BAD_EXTRA_BYTES 0x0004
473 #define EXT2_SF_SKIP_MISSING_ITABLE 0x0008
474 #define EXT2_SF_DO_LAZY 0x0010
475 #define EXT2_SF_WARN_GARBAGE_INODES 0x0020
478 * ext2fs_check_if_mounted flags
480 #define EXT2_MF_MOUNTED 1
481 #define EXT2_MF_ISROOT 2
482 #define EXT2_MF_READONLY 4
483 #define EXT2_MF_SWAP 8
484 #define EXT2_MF_BUSY 16
487 * Ext2/linux mode flags. We define them here so that we don't need
488 * to depend on the OS's sys/stat.h, since we may be compiling on a
491 #define LINUX_S_IFMT 00170000
492 #define LINUX_S_IFSOCK 0140000
493 #define LINUX_S_IFLNK 0120000
494 #define LINUX_S_IFREG 0100000
495 #define LINUX_S_IFBLK 0060000
496 #define LINUX_S_IFDIR 0040000
497 #define LINUX_S_IFCHR 0020000
498 #define LINUX_S_IFIFO 0010000
499 #define LINUX_S_ISUID 0004000
500 #define LINUX_S_ISGID 0002000
501 #define LINUX_S_ISVTX 0001000
503 #define LINUX_S_IRWXU 00700
504 #define LINUX_S_IRUSR 00400
505 #define LINUX_S_IWUSR 00200
506 #define LINUX_S_IXUSR 00100
508 #define LINUX_S_IRWXG 00070
509 #define LINUX_S_IRGRP 00040
510 #define LINUX_S_IWGRP 00020
511 #define LINUX_S_IXGRP 00010
513 #define LINUX_S_IRWXO 00007
514 #define LINUX_S_IROTH 00004
515 #define LINUX_S_IWOTH 00002
516 #define LINUX_S_IXOTH 00001
518 #define LINUX_S_ISLNK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFLNK)
519 #define LINUX_S_ISREG(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFREG)
520 #define LINUX_S_ISDIR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFDIR)
521 #define LINUX_S_ISCHR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFCHR)
522 #define LINUX_S_ISBLK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFBLK)
523 #define LINUX_S_ISFIFO(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFIFO)
524 #define LINUX_S_ISSOCK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFSOCK)
527 * ext2 size of an inode
529 #define EXT2_I_SIZE(i) ((i)->i_size | ((__u64) (i)->i_size_high << 32))
532 * ext2_icount_t abstraction
534 #define EXT2_ICOUNT_OPT_INCREMENT 0x01
535 #define EXT2_ICOUNT_OPT_FULLMAP 0x02
537 typedef struct ext2_icount *ext2_icount_t;
540 * Flags for ext2fs_bmap
542 #define BMAP_ALLOC 0x0001
543 #define BMAP_SET 0x0002
544 #define BMAP_UNINIT 0x0004
545 #define BMAP_ZERO 0x0008
548 * Returned flags from ext2fs_bmap
550 #define BMAP_RET_UNINIT 0x0001
553 * Flags for imager.c functions
555 #define IMAGER_FLAG_INODEMAP 1
556 #define IMAGER_FLAG_SPARSEWRITE 2
559 * For checking structure magic numbers...
562 #define EXT2_CHECK_MAGIC(struct, code) \
563 if ((struct)->magic != (code)) return (code)
566 * Features supported by this version of the library
568 #define EXT2_LIB_FEATURE_COMPAT_SUPP (EXT2_FEATURE_COMPAT_DIR_PREALLOC|\
569 EXT2_FEATURE_COMPAT_IMAGIC_INODES|\
570 EXT3_FEATURE_COMPAT_HAS_JOURNAL|\
571 EXT2_FEATURE_COMPAT_RESIZE_INODE|\
572 EXT2_FEATURE_COMPAT_DIR_INDEX|\
573 EXT2_FEATURE_COMPAT_EXT_ATTR|\
574 EXT4_FEATURE_COMPAT_SPARSE_SUPER2)
577 #define EXT4_LIB_INCOMPAT_MMP EXT4_FEATURE_INCOMPAT_MMP
579 #define EXT4_LIB_INCOMPAT_MMP (0)
582 #define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\
583 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\
584 EXT2_FEATURE_INCOMPAT_META_BG|\
585 EXT3_FEATURE_INCOMPAT_RECOVER|\
586 EXT3_FEATURE_INCOMPAT_EXTENTS|\
587 EXT4_FEATURE_INCOMPAT_FLEX_BG|\
588 EXT4_LIB_INCOMPAT_MMP|\
589 EXT4_FEATURE_INCOMPAT_64BIT|\
590 EXT4_FEATURE_INCOMPAT_INLINE_DATA|\
591 EXT4_FEATURE_INCOMPAT_ENCRYPT|\
592 EXT4_FEATURE_INCOMPAT_CSUM_SEED)
594 #define EXT2_LIB_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|\
595 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|\
596 EXT2_FEATURE_RO_COMPAT_LARGE_FILE|\
597 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|\
598 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|\
599 EXT4_FEATURE_RO_COMPAT_GDT_CSUM|\
600 EXT4_FEATURE_RO_COMPAT_BIGALLOC|\
601 EXT4_FEATURE_RO_COMPAT_QUOTA|\
602 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM|\
603 EXT4_FEATURE_RO_COMPAT_READONLY |\
604 EXT4_FEATURE_RO_COMPAT_PROJECT)
607 * These features are only allowed if EXT2_FLAG_SOFTSUPP_FEATURES is passed
610 #define EXT2_LIB_SOFTSUPP_INCOMPAT (0)
611 #define EXT2_LIB_SOFTSUPP_RO_COMPAT (EXT4_FEATURE_RO_COMPAT_REPLICA)
614 /* Translate a block number to a cluster number */
615 #define EXT2FS_CLUSTER_RATIO(fs) (1 << (fs)->cluster_ratio_bits)
616 #define EXT2FS_CLUSTER_MASK(fs) (EXT2FS_CLUSTER_RATIO(fs) - 1)
617 #define EXT2FS_B2C(fs, blk) ((blk) >> (fs)->cluster_ratio_bits)
618 /* Translate a cluster number to a block number */
619 #define EXT2FS_C2B(fs, cluster) ((cluster) << (fs)->cluster_ratio_bits)
620 /* Translate # of blks to # of clusters */
621 #define EXT2FS_NUM_B2C(fs, blks) (((blks) + EXT2FS_CLUSTER_MASK(fs)) >> \
622 (fs)->cluster_ratio_bits)
624 #if defined(HAVE_FSTAT64) && !defined(__OSX_AVAILABLE_BUT_DEPRECATED)
625 typedef struct stat64 ext2fs_struct_stat;
627 typedef struct stat ext2fs_struct_stat;
631 * For ext2fs_close2() and ext2fs_flush2(), this flag allows you to
632 * avoid the fsync call.
634 #define EXT2_FLAG_FLUSH_NO_SYNC 1
637 * Modify and iterate extended attributes
639 struct ext2_xattr_handle;
640 #define XATTR_ABORT 1
641 #define XATTR_CHANGED 2
644 * function prototypes
646 static inline int ext2fs_has_group_desc_csum(ext2_filsys fs)
648 return ext2fs_has_feature_metadata_csum(fs->super) ||
649 ext2fs_has_feature_gdt_csum(fs->super);
652 /* The LARGE_FILE feature should be set if we have stored files 2GB+ in size */
653 static inline int ext2fs_needs_large_file_feature(unsigned long long file_size)
655 return file_size >= 0x80000000ULL;
659 extern void ext2fs_clear_block_uninit(ext2_filsys fs, dgrp_t group);
660 extern errcode_t ext2fs_new_inode(ext2_filsys fs, ext2_ino_t dir, int mode,
661 ext2fs_inode_bitmap map, ext2_ino_t *ret);
662 extern errcode_t ext2fs_new_block(ext2_filsys fs, blk_t goal,
663 ext2fs_block_bitmap map, blk_t *ret);
664 extern errcode_t ext2fs_new_block2(ext2_filsys fs, blk64_t goal,
665 ext2fs_block_bitmap map, blk64_t *ret);
666 extern errcode_t ext2fs_get_free_blocks(ext2_filsys fs, blk_t start,
667 blk_t finish, int num,
668 ext2fs_block_bitmap map,
670 extern errcode_t ext2fs_get_free_blocks2(ext2_filsys fs, blk64_t start,
671 blk64_t finish, int num,
672 ext2fs_block_bitmap map,
674 extern errcode_t ext2fs_alloc_block(ext2_filsys fs, blk_t goal,
675 char *block_buf, blk_t *ret);
676 extern errcode_t ext2fs_alloc_block2(ext2_filsys fs, blk64_t goal,
677 char *block_buf, blk64_t *ret);
678 extern void ext2fs_set_alloc_block_callback(ext2_filsys fs,
679 errcode_t (*func)(ext2_filsys fs,
682 errcode_t (**old)(ext2_filsys fs,
685 blk64_t ext2fs_find_inode_goal(ext2_filsys fs, ext2_ino_t ino,
686 struct ext2_inode *inode, blk64_t lblk);
687 extern void ext2fs_set_new_range_callback(ext2_filsys fs,
688 errcode_t (*func)(ext2_filsys fs, int flags, blk64_t goal,
689 blk64_t len, blk64_t *pblk, blk64_t *plen),
690 errcode_t (**old)(ext2_filsys fs, int flags, blk64_t goal,
691 blk64_t len, blk64_t *pblk, blk64_t *plen));
692 extern void ext2fs_set_block_alloc_stats_range_callback(ext2_filsys fs,
693 void (*func)(ext2_filsys fs, blk64_t blk,
694 blk_t num, int inuse),
695 void (**old)(ext2_filsys fs, blk64_t blk,
696 blk_t num, int inuse));
697 #define EXT2_NEWRANGE_FIXED_GOAL (0x1)
698 #define EXT2_NEWRANGE_MIN_LENGTH (0x2)
699 #define EXT2_NEWRANGE_ALL_FLAGS (0x3)
700 errcode_t ext2fs_new_range(ext2_filsys fs, int flags, blk64_t goal,
701 blk64_t len, ext2fs_block_bitmap map, blk64_t *pblk,
703 #define EXT2_ALLOCRANGE_FIXED_GOAL (0x1)
704 #define EXT2_ALLOCRANGE_ZERO_BLOCKS (0x2)
705 #define EXT2_ALLOCRANGE_ALL_FLAGS (0x3)
706 errcode_t ext2fs_alloc_range(ext2_filsys fs, int flags, blk64_t goal,
707 blk_t len, blk64_t *ret);
710 extern int ext2fs_reserve_super_and_bgd(ext2_filsys fs,
712 ext2fs_block_bitmap bmap);
713 extern void ext2fs_set_block_alloc_stats_callback(ext2_filsys fs,
714 void (*func)(ext2_filsys fs,
717 void (**old)(ext2_filsys fs,
722 void ext2fs_inode_alloc_stats(ext2_filsys fs, ext2_ino_t ino, int inuse);
723 void ext2fs_inode_alloc_stats2(ext2_filsys fs, ext2_ino_t ino,
724 int inuse, int isdir);
725 void ext2fs_block_alloc_stats(ext2_filsys fs, blk_t blk, int inuse);
726 void ext2fs_block_alloc_stats2(ext2_filsys fs, blk64_t blk, int inuse);
727 void ext2fs_block_alloc_stats_range(ext2_filsys fs, blk64_t blk,
728 blk_t num, int inuse);
731 extern errcode_t ext2fs_allocate_tables(ext2_filsys fs);
732 extern errcode_t ext2fs_allocate_group_table(ext2_filsys fs, dgrp_t group,
733 ext2fs_block_bitmap bmap);
736 extern errcode_t ext2fs_u32_list_create(ext2_u32_list *ret, int size);
737 extern errcode_t ext2fs_u32_list_add(ext2_u32_list bb, __u32 blk);
738 extern int ext2fs_u32_list_find(ext2_u32_list bb, __u32 blk);
739 extern int ext2fs_u32_list_test(ext2_u32_list bb, blk_t blk);
740 extern errcode_t ext2fs_u32_list_iterate_begin(ext2_u32_list bb,
741 ext2_u32_iterate *ret);
742 extern int ext2fs_u32_list_iterate(ext2_u32_iterate iter, blk_t *blk);
743 extern void ext2fs_u32_list_iterate_end(ext2_u32_iterate iter);
744 extern errcode_t ext2fs_u32_copy(ext2_u32_list src, ext2_u32_list *dest);
745 extern int ext2fs_u32_list_equal(ext2_u32_list bb1, ext2_u32_list bb2);
747 extern errcode_t ext2fs_badblocks_list_create(ext2_badblocks_list *ret,
749 extern errcode_t ext2fs_badblocks_list_add(ext2_badblocks_list bb,
751 extern int ext2fs_badblocks_list_test(ext2_badblocks_list bb,
753 extern int ext2fs_u32_list_del(ext2_u32_list bb, __u32 blk);
754 extern void ext2fs_badblocks_list_del(ext2_u32_list bb, __u32 blk);
756 ext2fs_badblocks_list_iterate_begin(ext2_badblocks_list bb,
757 ext2_badblocks_iterate *ret);
758 extern int ext2fs_badblocks_list_iterate(ext2_badblocks_iterate iter,
760 extern void ext2fs_badblocks_list_iterate_end(ext2_badblocks_iterate iter);
761 extern errcode_t ext2fs_badblocks_copy(ext2_badblocks_list src,
762 ext2_badblocks_list *dest);
763 extern int ext2fs_badblocks_equal(ext2_badblocks_list bb1,
764 ext2_badblocks_list bb2);
765 extern int ext2fs_u32_list_count(ext2_u32_list bb);
768 extern errcode_t badblocks_list_create(badblocks_list *ret, int size);
769 extern errcode_t badblocks_list_add(badblocks_list bb, blk_t blk);
770 extern int badblocks_list_test(badblocks_list bb, blk_t blk);
771 extern errcode_t badblocks_list_iterate_begin(badblocks_list bb,
772 badblocks_iterate *ret);
773 extern int badblocks_list_iterate(badblocks_iterate iter, blk_t *blk);
774 extern void badblocks_list_iterate_end(badblocks_iterate iter);
775 extern void badblocks_list_free(badblocks_list bb);
778 extern errcode_t ext2fs_update_bb_inode(ext2_filsys fs,
779 ext2_badblocks_list bb_list);
782 extern void ext2fs_free_block_bitmap(ext2fs_block_bitmap bitmap);
783 extern void ext2fs_free_inode_bitmap(ext2fs_inode_bitmap bitmap);
784 extern errcode_t ext2fs_copy_bitmap(ext2fs_generic_bitmap src,
785 ext2fs_generic_bitmap *dest);
786 extern errcode_t ext2fs_write_inode_bitmap(ext2_filsys fs);
787 extern errcode_t ext2fs_write_block_bitmap (ext2_filsys fs);
788 extern errcode_t ext2fs_read_inode_bitmap (ext2_filsys fs);
789 extern errcode_t ext2fs_read_block_bitmap(ext2_filsys fs);
790 extern errcode_t ext2fs_allocate_block_bitmap(ext2_filsys fs,
792 ext2fs_block_bitmap *ret);
793 extern errcode_t ext2fs_allocate_subcluster_bitmap(ext2_filsys fs,
795 ext2fs_block_bitmap *ret);
796 extern int ext2fs_get_bitmap_granularity(ext2fs_block_bitmap bitmap);
797 extern errcode_t ext2fs_allocate_inode_bitmap(ext2_filsys fs,
799 ext2fs_inode_bitmap *ret);
800 extern errcode_t ext2fs_fudge_inode_bitmap_end(ext2fs_inode_bitmap bitmap,
801 ext2_ino_t end, ext2_ino_t *oend);
802 extern errcode_t ext2fs_fudge_block_bitmap_end(ext2fs_block_bitmap bitmap,
803 blk_t end, blk_t *oend);
804 extern errcode_t ext2fs_fudge_block_bitmap_end2(ext2fs_block_bitmap bitmap,
805 blk64_t end, blk64_t *oend);
806 extern void ext2fs_clear_inode_bitmap(ext2fs_inode_bitmap bitmap);
807 extern void ext2fs_clear_block_bitmap(ext2fs_block_bitmap bitmap);
808 extern errcode_t ext2fs_read_bitmaps(ext2_filsys fs);
809 extern errcode_t ext2fs_write_bitmaps(ext2_filsys fs);
810 extern errcode_t ext2fs_resize_inode_bitmap(__u32 new_end, __u32 new_real_end,
811 ext2fs_inode_bitmap bmap);
812 extern errcode_t ext2fs_resize_inode_bitmap2(__u64 new_end,
814 ext2fs_inode_bitmap bmap);
815 extern errcode_t ext2fs_resize_block_bitmap(__u32 new_end, __u32 new_real_end,
816 ext2fs_block_bitmap bmap);
817 extern errcode_t ext2fs_resize_block_bitmap2(__u64 new_end,
819 ext2fs_block_bitmap bmap);
820 extern errcode_t ext2fs_compare_block_bitmap(ext2fs_block_bitmap bm1,
821 ext2fs_block_bitmap bm2);
822 extern errcode_t ext2fs_compare_inode_bitmap(ext2fs_inode_bitmap bm1,
823 ext2fs_inode_bitmap bm2);
824 extern errcode_t ext2fs_set_inode_bitmap_range(ext2fs_inode_bitmap bmap,
825 ext2_ino_t start, unsigned int num,
827 extern errcode_t ext2fs_set_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
828 __u64 start, size_t num,
830 extern errcode_t ext2fs_get_inode_bitmap_range(ext2fs_inode_bitmap bmap,
831 ext2_ino_t start, unsigned int num,
833 extern errcode_t ext2fs_get_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
834 __u64 start, size_t num,
836 extern errcode_t ext2fs_set_block_bitmap_range(ext2fs_block_bitmap bmap,
837 blk_t start, unsigned int num,
839 extern errcode_t ext2fs_set_block_bitmap_range2(ext2fs_block_bitmap bmap,
840 blk64_t start, size_t num,
842 extern errcode_t ext2fs_get_block_bitmap_range(ext2fs_block_bitmap bmap,
843 blk_t start, unsigned int num,
845 extern errcode_t ext2fs_get_block_bitmap_range2(ext2fs_block_bitmap bmap,
846 blk64_t start, size_t num,
850 extern __u32 ext2fs_inode_bitmap_checksum(ext2_filsys fs, dgrp_t group);
851 extern __u32 ext2fs_block_bitmap_checksum(ext2_filsys fs, dgrp_t group);
852 extern dgrp_t ext2fs_group_of_blk2(ext2_filsys fs, blk64_t);
853 extern blk64_t ext2fs_group_first_block2(ext2_filsys fs, dgrp_t group);
854 extern blk64_t ext2fs_group_last_block2(ext2_filsys fs, dgrp_t group);
855 extern int ext2fs_group_blocks_count(ext2_filsys fs, dgrp_t group);
856 extern blk64_t ext2fs_inode_data_blocks2(ext2_filsys fs,
857 struct ext2_inode *inode);
858 extern blk64_t ext2fs_inode_i_blocks(ext2_filsys fs,
859 struct ext2_inode *inode);
860 extern blk64_t ext2fs_blocks_count(struct ext2_super_block *super);
861 extern void ext2fs_blocks_count_set(struct ext2_super_block *super,
863 extern void ext2fs_blocks_count_add(struct ext2_super_block *super,
865 extern blk64_t ext2fs_r_blocks_count(struct ext2_super_block *super);
866 extern void ext2fs_r_blocks_count_set(struct ext2_super_block *super,
868 extern void ext2fs_r_blocks_count_add(struct ext2_super_block *super,
870 extern blk64_t ext2fs_free_blocks_count(struct ext2_super_block *super);
871 extern void ext2fs_free_blocks_count_set(struct ext2_super_block *super,
873 extern void ext2fs_free_blocks_count_add(struct ext2_super_block *super,
875 /* Block group descriptor accessor functions */
876 extern struct ext2_group_desc *ext2fs_group_desc(ext2_filsys fs,
877 struct opaque_ext2_group_desc *gdp,
879 extern blk64_t ext2fs_block_bitmap_csum(ext2_filsys fs, dgrp_t group);
880 extern blk64_t ext2fs_block_bitmap_loc(ext2_filsys fs, dgrp_t group);
881 extern void ext2fs_block_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
883 extern __u32 ext2fs_inode_bitmap_csum(ext2_filsys fs, dgrp_t group);
884 extern blk64_t ext2fs_inode_bitmap_loc(ext2_filsys fs, dgrp_t group);
885 extern void ext2fs_inode_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
887 extern blk64_t ext2fs_inode_table_loc(ext2_filsys fs, dgrp_t group);
888 extern void ext2fs_inode_table_loc_set(ext2_filsys fs, dgrp_t group,
890 extern __u32 ext2fs_bg_free_blocks_count(ext2_filsys fs, dgrp_t group);
891 extern void ext2fs_bg_free_blocks_count_set(ext2_filsys fs, dgrp_t group,
893 extern __u32 ext2fs_bg_free_inodes_count(ext2_filsys fs, dgrp_t group);
894 extern void ext2fs_bg_free_inodes_count_set(ext2_filsys fs, dgrp_t group,
896 extern __u32 ext2fs_bg_used_dirs_count(ext2_filsys fs, dgrp_t group);
897 extern void ext2fs_bg_used_dirs_count_set(ext2_filsys fs, dgrp_t group,
899 extern __u32 ext2fs_bg_itable_unused(ext2_filsys fs, dgrp_t group);
900 extern void ext2fs_bg_itable_unused_set(ext2_filsys fs, dgrp_t group,
902 extern __u16 ext2fs_bg_flags(ext2_filsys fs, dgrp_t group);
903 extern void ext2fs_bg_flags_zap(ext2_filsys fs, dgrp_t group);
904 extern int ext2fs_bg_flags_test(ext2_filsys fs, dgrp_t group, __u16 bg_flag);
905 extern void ext2fs_bg_flags_set(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
906 extern void ext2fs_bg_flags_clear(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
907 extern __u16 ext2fs_bg_checksum(ext2_filsys fs, dgrp_t group);
908 extern void ext2fs_bg_checksum_set(ext2_filsys fs, dgrp_t group, __u16 checksum);
909 extern blk64_t ext2fs_file_acl_block(ext2_filsys fs,
910 const struct ext2_inode *inode);
911 extern void ext2fs_file_acl_block_set(ext2_filsys fs,
912 struct ext2_inode *inode, blk64_t blk);
913 extern errcode_t ext2fs_inode_size_set(ext2_filsys fs, struct ext2_inode *inode,
917 extern errcode_t ext2fs_block_iterate(ext2_filsys fs,
921 int (*func)(ext2_filsys fs,
926 errcode_t ext2fs_block_iterate2(ext2_filsys fs,
930 int (*func)(ext2_filsys fs,
932 e2_blkcnt_t blockcnt,
937 errcode_t ext2fs_block_iterate3(ext2_filsys fs,
941 int (*func)(ext2_filsys fs,
943 e2_blkcnt_t blockcnt,
950 extern errcode_t ext2fs_bmap(ext2_filsys fs, ext2_ino_t ino,
951 struct ext2_inode *inode,
952 char *block_buf, int bmap_flags,
953 blk_t block, blk_t *phys_blk);
954 extern errcode_t ext2fs_bmap2(ext2_filsys fs, ext2_ino_t ino,
955 struct ext2_inode *inode,
956 char *block_buf, int bmap_flags, blk64_t block,
957 int *ret_flags, blk64_t *phys_blk);
958 errcode_t ext2fs_map_cluster_block(ext2_filsys fs, ext2_ino_t ino,
959 struct ext2_inode *inode, blk64_t lblk,
964 extern errcode_t ext2fs_move_blocks(ext2_filsys fs,
965 ext2fs_block_bitmap reserve,
966 ext2fs_block_bitmap alloc_map,
971 extern errcode_t ext2fs_check_desc(ext2_filsys fs);
974 extern errcode_t ext2fs_close(ext2_filsys fs);
975 extern errcode_t ext2fs_close2(ext2_filsys fs, int flags);
976 extern errcode_t ext2fs_close_free(ext2_filsys *fs);
977 extern errcode_t ext2fs_flush(ext2_filsys fs);
978 extern errcode_t ext2fs_flush2(ext2_filsys fs, int flags);
979 extern int ext2fs_bg_has_super(ext2_filsys fs, dgrp_t group_block);
980 extern errcode_t ext2fs_super_and_bgd_loc2(ext2_filsys fs,
982 blk64_t *ret_super_blk,
983 blk64_t *ret_old_desc_blk,
984 blk64_t *ret_new_desc_blk,
985 blk_t *ret_used_blks);
986 extern int ext2fs_super_and_bgd_loc(ext2_filsys fs,
988 blk_t *ret_super_blk,
989 blk_t *ret_old_desc_blk,
990 blk_t *ret_new_desc_blk,
992 extern void ext2fs_update_dynamic_rev(ext2_filsys fs);
995 extern __u32 ext2fs_crc32_be(__u32 crc, unsigned char const *p, size_t len);
996 extern __u32 ext2fs_crc32c_le(__u32 crc, unsigned char const *p, size_t len);
999 extern void ext2fs_init_csum_seed(ext2_filsys fs);
1000 extern errcode_t ext2fs_mmp_csum_set(ext2_filsys fs, struct mmp_struct *mmp);
1001 extern int ext2fs_mmp_csum_verify(ext2_filsys, struct mmp_struct *mmp);
1002 extern int ext2fs_verify_csum_type(ext2_filsys fs, struct ext2_super_block *sb);
1003 extern errcode_t ext2fs_superblock_csum_set(ext2_filsys fs,
1004 struct ext2_super_block *sb);
1005 extern int ext2fs_superblock_csum_verify(ext2_filsys fs,
1006 struct ext2_super_block *sb);
1007 extern errcode_t ext2fs_ext_attr_block_csum_set(ext2_filsys fs,
1008 ext2_ino_t inum, blk64_t block,
1009 struct ext2_ext_attr_header *hdr);
1010 extern int ext2fs_ext_attr_block_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1012 struct ext2_ext_attr_header *hdr);
1013 #define EXT2_DIRENT_TAIL(block, blocksize) \
1014 ((struct ext2_dir_entry_tail *)(((char *)(block)) + \
1015 (blocksize) - sizeof(struct ext2_dir_entry_tail)))
1017 extern void ext2fs_initialize_dirent_tail(ext2_filsys fs,
1018 struct ext2_dir_entry_tail *t);
1019 extern int ext2fs_dirent_has_tail(ext2_filsys fs,
1020 struct ext2_dir_entry *dirent);
1021 extern int ext2fs_dirent_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1022 struct ext2_dir_entry *dirent);
1023 extern int ext2fs_dir_block_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1024 struct ext2_dir_entry *dirent);
1025 extern errcode_t ext2fs_dir_block_csum_set(ext2_filsys fs, ext2_ino_t inum,
1026 struct ext2_dir_entry *dirent);
1027 extern errcode_t ext2fs_get_dx_countlimit(ext2_filsys fs,
1028 struct ext2_dir_entry *dirent,
1029 struct ext2_dx_countlimit **cc,
1031 extern errcode_t ext2fs_extent_block_csum_set(ext2_filsys fs,
1033 struct ext3_extent_header *eh);
1034 extern int ext2fs_extent_block_csum_verify(ext2_filsys fs,
1036 struct ext3_extent_header *eh);
1037 extern errcode_t ext2fs_block_bitmap_csum_set(ext2_filsys fs, dgrp_t group,
1038 char *bitmap, int size);
1039 extern int ext2fs_block_bitmap_csum_verify(ext2_filsys fs, dgrp_t group,
1040 char *bitmap, int size);
1041 extern errcode_t ext2fs_inode_bitmap_csum_set(ext2_filsys fs, dgrp_t group,
1042 char *bitmap, int size);
1043 extern int ext2fs_inode_bitmap_csum_verify(ext2_filsys fs, dgrp_t group,
1044 char *bitmap, int size);
1045 extern errcode_t ext2fs_inode_csum_set(ext2_filsys fs, ext2_ino_t inum,
1046 struct ext2_inode_large *inode);
1047 extern int ext2fs_inode_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1048 struct ext2_inode_large *inode);
1049 extern void ext2fs_group_desc_csum_set(ext2_filsys fs, dgrp_t group);
1050 extern int ext2fs_group_desc_csum_verify(ext2_filsys fs, dgrp_t group);
1051 extern errcode_t ext2fs_set_gdt_csum(ext2_filsys fs);
1052 extern __u16 ext2fs_group_desc_csum(ext2_filsys fs, dgrp_t group);
1055 extern errcode_t ext2fs_init_dblist(ext2_filsys fs, ext2_dblist *ret_dblist);
1056 extern errcode_t ext2fs_add_dir_block(ext2_dblist dblist, ext2_ino_t ino,
1057 blk_t blk, int blockcnt);
1058 extern errcode_t ext2fs_add_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
1059 blk64_t blk, e2_blkcnt_t blockcnt);
1060 extern void ext2fs_dblist_sort(ext2_dblist dblist,
1061 EXT2_QSORT_TYPE (*sortfunc)(const void *,
1063 extern void ext2fs_dblist_sort2(ext2_dblist dblist,
1064 EXT2_QSORT_TYPE (*sortfunc)(const void *,
1066 extern errcode_t ext2fs_dblist_iterate(ext2_dblist dblist,
1067 int (*func)(ext2_filsys fs, struct ext2_db_entry *db_info,
1070 extern errcode_t ext2fs_dblist_iterate2(ext2_dblist dblist,
1071 int (*func)(ext2_filsys fs, struct ext2_db_entry2 *db_info,
1074 extern errcode_t ext2fs_dblist_iterate3(ext2_dblist dblist,
1075 int (*func)(ext2_filsys fs, struct ext2_db_entry2 *db_info,
1077 unsigned long long start,
1078 unsigned long long count,
1080 extern errcode_t ext2fs_set_dir_block(ext2_dblist dblist, ext2_ino_t ino,
1081 blk_t blk, int blockcnt);
1082 extern errcode_t ext2fs_set_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
1083 blk64_t blk, e2_blkcnt_t blockcnt);
1084 extern errcode_t ext2fs_copy_dblist(ext2_dblist src,
1086 extern int ext2fs_dblist_count(ext2_dblist dblist);
1087 extern blk64_t ext2fs_dblist_count2(ext2_dblist dblist);
1088 extern errcode_t ext2fs_dblist_get_last(ext2_dblist dblist,
1089 struct ext2_db_entry **entry);
1090 extern errcode_t ext2fs_dblist_get_last2(ext2_dblist dblist,
1091 struct ext2_db_entry2 **entry);
1092 extern errcode_t ext2fs_dblist_drop_last(ext2_dblist dblist);
1096 ext2fs_dblist_dir_iterate(ext2_dblist dblist,
1099 int (*func)(ext2_ino_t dir,
1101 struct ext2_dir_entry *dirent,
1109 /* digest_encode.c */
1110 #define EXT2FS_DIGEST_SIZE EXT2FS_SHA256_LENGTH
1111 extern int ext2fs_digest_encode(const char *src, int len, char *dst);
1112 extern int ext2fs_digest_decode(const char *src, int len, char *dst);
1116 extern errcode_t ext2fs_read_dir_block(ext2_filsys fs, blk_t block,
1118 extern errcode_t ext2fs_read_dir_block2(ext2_filsys fs, blk_t block,
1119 void *buf, int flags);
1120 extern errcode_t ext2fs_read_dir_block3(ext2_filsys fs, blk64_t block,
1121 void *buf, int flags);
1122 extern errcode_t ext2fs_read_dir_block4(ext2_filsys fs, blk64_t block,
1123 void *buf, int flags, ext2_ino_t ino);
1124 extern errcode_t ext2fs_write_dir_block(ext2_filsys fs, blk_t block,
1126 extern errcode_t ext2fs_write_dir_block2(ext2_filsys fs, blk_t block,
1127 void *buf, int flags);
1128 extern errcode_t ext2fs_write_dir_block3(ext2_filsys fs, blk64_t block,
1129 void *buf, int flags);
1130 extern errcode_t ext2fs_write_dir_block4(ext2_filsys fs, blk64_t block,
1131 void *buf, int flags, ext2_ino_t ino);
1134 extern errcode_t ext2fs_dirhash(int version, const char *name, int len,
1136 ext2_dirhash_t *ret_hash,
1137 ext2_dirhash_t *ret_minor_hash);
1141 extern errcode_t ext2fs_get_rec_len(ext2_filsys fs,
1142 struct ext2_dir_entry *dirent,
1143 unsigned int *rec_len);
1144 extern errcode_t ext2fs_set_rec_len(ext2_filsys fs,
1146 struct ext2_dir_entry *dirent);
1147 extern errcode_t ext2fs_dir_iterate(ext2_filsys fs,
1151 int (*func)(struct ext2_dir_entry *dirent,
1157 extern errcode_t ext2fs_dir_iterate2(ext2_filsys fs,
1161 int (*func)(ext2_ino_t dir,
1163 struct ext2_dir_entry *dirent,
1171 extern errcode_t ext2fs_dup_handle(ext2_filsys src, ext2_filsys *dest);
1174 extern errcode_t ext2fs_expand_dir(ext2_filsys fs, ext2_ino_t dir);
1177 extern __u32 ext2fs_ext_attr_hash_entry(struct ext2_ext_attr_entry *entry,
1179 extern errcode_t ext2fs_read_ext_attr(ext2_filsys fs, blk_t block, void *buf);
1180 extern errcode_t ext2fs_read_ext_attr2(ext2_filsys fs, blk64_t block,
1182 extern errcode_t ext2fs_read_ext_attr3(ext2_filsys fs, blk64_t block,
1183 void *buf, ext2_ino_t inum);
1184 extern errcode_t ext2fs_write_ext_attr(ext2_filsys fs, blk_t block,
1186 extern errcode_t ext2fs_write_ext_attr2(ext2_filsys fs, blk64_t block,
1188 extern errcode_t ext2fs_write_ext_attr3(ext2_filsys fs, blk64_t block,
1189 void *buf, ext2_ino_t inum);
1190 extern errcode_t ext2fs_adjust_ea_refcount(ext2_filsys fs, blk_t blk,
1192 int adjust, __u32 *newcount);
1193 extern errcode_t ext2fs_adjust_ea_refcount2(ext2_filsys fs, blk64_t blk,
1195 int adjust, __u32 *newcount);
1196 extern errcode_t ext2fs_adjust_ea_refcount3(ext2_filsys fs, blk64_t blk,
1198 int adjust, __u32 *newcount,
1200 errcode_t ext2fs_xattrs_write(struct ext2_xattr_handle *handle);
1201 errcode_t ext2fs_xattrs_read(struct ext2_xattr_handle *handle);
1202 errcode_t ext2fs_xattrs_iterate(struct ext2_xattr_handle *h,
1203 int (*func)(char *name, char *value,
1204 size_t value_len, void *data),
1206 errcode_t ext2fs_xattr_get(struct ext2_xattr_handle *h, const char *key,
1207 void **value, size_t *value_len);
1208 errcode_t ext2fs_xattr_set(struct ext2_xattr_handle *handle,
1212 errcode_t ext2fs_xattr_remove(struct ext2_xattr_handle *handle,
1214 errcode_t ext2fs_xattrs_open(ext2_filsys fs, ext2_ino_t ino,
1215 struct ext2_xattr_handle **handle);
1216 errcode_t ext2fs_xattrs_close(struct ext2_xattr_handle **handle);
1217 errcode_t ext2fs_free_ext_attr(ext2_filsys fs, ext2_ino_t ino,
1218 struct ext2_inode_large *inode);
1219 errcode_t ext2fs_xattrs_count(struct ext2_xattr_handle *handle, size_t *count);
1220 errcode_t ext2fs_xattr_inode_max_size(ext2_filsys fs, ext2_ino_t ino,
1222 #define XATTR_HANDLE_FLAG_RAW 0x0001
1223 errcode_t ext2fs_xattrs_flags(struct ext2_xattr_handle *handle,
1224 unsigned int *new_flags, unsigned int *old_flags);
1227 extern errcode_t ext2fs_extent_header_verify(void *ptr, int size);
1228 extern errcode_t ext2fs_extent_open(ext2_filsys fs, ext2_ino_t ino,
1229 ext2_extent_handle_t *handle);
1230 extern errcode_t ext2fs_extent_open2(ext2_filsys fs, ext2_ino_t ino,
1231 struct ext2_inode *inode,
1232 ext2_extent_handle_t *ret_handle);
1233 extern void ext2fs_extent_free(ext2_extent_handle_t handle);
1234 extern errcode_t ext2fs_extent_get(ext2_extent_handle_t handle,
1235 int flags, struct ext2fs_extent *extent);
1236 extern errcode_t ext2fs_extent_node_split(ext2_extent_handle_t handle);
1237 extern errcode_t ext2fs_extent_replace(ext2_extent_handle_t handle, int flags,
1238 struct ext2fs_extent *extent);
1239 extern errcode_t ext2fs_extent_insert(ext2_extent_handle_t handle, int flags,
1240 struct ext2fs_extent *extent);
1241 extern errcode_t ext2fs_extent_set_bmap(ext2_extent_handle_t handle,
1242 blk64_t logical, blk64_t physical,
1244 extern errcode_t ext2fs_extent_delete(ext2_extent_handle_t handle, int flags);
1245 extern errcode_t ext2fs_extent_get_info(ext2_extent_handle_t handle,
1246 struct ext2_extent_info *info);
1247 extern errcode_t ext2fs_extent_goto(ext2_extent_handle_t handle,
1249 extern errcode_t ext2fs_extent_goto2(ext2_extent_handle_t handle,
1250 int leaf_level, blk64_t blk);
1251 extern errcode_t ext2fs_extent_fix_parents(ext2_extent_handle_t handle);
1252 size_t ext2fs_max_extent_depth(ext2_extent_handle_t handle);
1255 #define EXT2_FALLOCATE_ZERO_BLOCKS (0x1)
1256 #define EXT2_FALLOCATE_FORCE_INIT (0x2)
1257 #define EXT2_FALLOCATE_FORCE_UNINIT (0x4)
1258 #define EXT2_FALLOCATE_INIT_BEYOND_EOF (0x8)
1259 #define EXT2_FALLOCATE_ALL_FLAGS (0xF)
1260 errcode_t ext2fs_fallocate(ext2_filsys fs, int flags, ext2_ino_t ino,
1261 struct ext2_inode *inode, blk64_t goal,
1262 blk64_t start, blk64_t len);
1265 extern errcode_t ext2fs_file_open2(ext2_filsys fs, ext2_ino_t ino,
1266 struct ext2_inode *inode,
1267 int flags, ext2_file_t *ret);
1268 extern errcode_t ext2fs_file_open(ext2_filsys fs, ext2_ino_t ino,
1269 int flags, ext2_file_t *ret);
1270 extern ext2_filsys ext2fs_file_get_fs(ext2_file_t file);
1271 struct ext2_inode *ext2fs_file_get_inode(ext2_file_t file);
1272 extern ext2_ino_t ext2fs_file_get_inode_num(ext2_file_t file);
1273 extern errcode_t ext2fs_file_close(ext2_file_t file);
1274 extern errcode_t ext2fs_file_flush(ext2_file_t file);
1275 extern errcode_t ext2fs_file_read(ext2_file_t file, void *buf,
1276 unsigned int wanted, unsigned int *got);
1277 extern errcode_t ext2fs_file_write(ext2_file_t file, const void *buf,
1278 unsigned int nbytes, unsigned int *written);
1279 extern errcode_t ext2fs_file_llseek(ext2_file_t file, __u64 offset,
1280 int whence, __u64 *ret_pos);
1281 extern errcode_t ext2fs_file_lseek(ext2_file_t file, ext2_off_t offset,
1282 int whence, ext2_off_t *ret_pos);
1283 errcode_t ext2fs_file_get_lsize(ext2_file_t file, __u64 *ret_size);
1284 extern ext2_off_t ext2fs_file_get_size(ext2_file_t file);
1285 extern errcode_t ext2fs_file_set_size(ext2_file_t file, ext2_off_t size);
1286 extern errcode_t ext2fs_file_set_size2(ext2_file_t file, ext2_off64_t size);
1289 extern char *ext2fs_find_block_device(dev_t device);
1292 extern errcode_t ext2fs_sync_device(int fd, int flushb);
1295 extern void ext2fs_free(ext2_filsys fs);
1296 extern void ext2fs_free_dblist(ext2_dblist dblist);
1297 extern void ext2fs_badblocks_list_free(ext2_badblocks_list bb);
1298 extern void ext2fs_u32_list_free(ext2_u32_list bb);
1301 extern void ext2fs_free_generic_bitmap(ext2fs_inode_bitmap bitmap);
1302 extern errcode_t ext2fs_make_generic_bitmap(errcode_t magic, ext2_filsys fs,
1303 __u32 start, __u32 end,
1305 const char *descr, char *init_map,
1306 ext2fs_generic_bitmap *ret);
1307 extern errcode_t ext2fs_allocate_generic_bitmap(__u32 start,
1311 ext2fs_generic_bitmap *ret);
1312 extern errcode_t ext2fs_copy_generic_bitmap(ext2fs_generic_bitmap src,
1313 ext2fs_generic_bitmap *dest);
1314 extern void ext2fs_clear_generic_bitmap(ext2fs_generic_bitmap bitmap);
1315 extern errcode_t ext2fs_fudge_generic_bitmap_end(ext2fs_inode_bitmap bitmap,
1320 extern void ext2fs_set_generic_bitmap_padding(ext2fs_generic_bitmap map);
1321 extern errcode_t ext2fs_resize_generic_bitmap(errcode_t magic,
1324 ext2fs_generic_bitmap bmap);
1325 extern errcode_t ext2fs_compare_generic_bitmap(errcode_t magic, errcode_t neq,
1326 ext2fs_generic_bitmap bm1,
1327 ext2fs_generic_bitmap bm2);
1328 extern errcode_t ext2fs_get_generic_bitmap_range(ext2fs_generic_bitmap bmap,
1330 __u32 start, __u32 num,
1332 extern errcode_t ext2fs_set_generic_bitmap_range(ext2fs_generic_bitmap bmap,
1334 __u32 start, __u32 num,
1336 extern errcode_t ext2fs_find_first_zero_generic_bitmap(ext2fs_generic_bitmap bitmap,
1337 __u32 start, __u32 end,
1339 extern errcode_t ext2fs_find_first_set_generic_bitmap(ext2fs_generic_bitmap bitmap,
1340 __u32 start, __u32 end,
1343 /* gen_bitmap64.c */
1344 void ext2fs_free_generic_bmap(ext2fs_generic_bitmap bmap);
1345 errcode_t ext2fs_alloc_generic_bmap(ext2_filsys fs, errcode_t magic,
1346 int type, __u64 start, __u64 end,
1349 ext2fs_generic_bitmap *ret);
1350 errcode_t ext2fs_copy_generic_bmap(ext2fs_generic_bitmap src,
1351 ext2fs_generic_bitmap *dest);
1352 void ext2fs_clear_generic_bmap(ext2fs_generic_bitmap bitmap);
1353 errcode_t ext2fs_fudge_generic_bmap_end(ext2fs_generic_bitmap bitmap,
1355 __u64 end, __u64 *oend);
1356 void ext2fs_set_generic_bmap_padding(ext2fs_generic_bitmap bmap);
1357 errcode_t ext2fs_resize_generic_bmap(ext2fs_generic_bitmap bmap,
1359 __u64 new_real_end);
1360 errcode_t ext2fs_compare_generic_bmap(errcode_t neq,
1361 ext2fs_generic_bitmap bm1,
1362 ext2fs_generic_bitmap bm2);
1363 errcode_t ext2fs_get_generic_bmap_range(ext2fs_generic_bitmap bmap,
1364 __u64 start, unsigned int num,
1366 errcode_t ext2fs_set_generic_bmap_range(ext2fs_generic_bitmap bmap,
1367 __u64 start, unsigned int num,
1369 errcode_t ext2fs_convert_subcluster_bitmap(ext2_filsys fs,
1370 ext2fs_block_bitmap *bitmap);
1372 /* get_num_dirs.c */
1373 extern errcode_t ext2fs_get_num_dirs(ext2_filsys fs, ext2_ino_t *ret_num_dirs);
1376 extern errcode_t ext2fs_get_device_size(const char *file, int blocksize,
1378 extern errcode_t ext2fs_get_device_size2(const char *file, int blocksize,
1379 blk64_t *retblocks);
1382 extern int ext2fs_get_dio_alignment(int fd);
1383 errcode_t ext2fs_get_device_sectsize(const char *file, int *sectsize);
1384 errcode_t ext2fs_get_device_phys_sectsize(const char *file, int *sectsize);
1387 errcode_t ext2fs_iblk_add_blocks(ext2_filsys fs, struct ext2_inode *inode,
1388 blk64_t num_blocks);
1389 errcode_t ext2fs_iblk_sub_blocks(ext2_filsys fs, struct ext2_inode *inode,
1390 blk64_t num_blocks);
1391 errcode_t ext2fs_iblk_set(ext2_filsys fs, struct ext2_inode *inode, blk64_t b);
1394 extern errcode_t ext2fs_image_inode_write(ext2_filsys fs, int fd, int flags);
1395 extern errcode_t ext2fs_image_inode_read(ext2_filsys fs, int fd, int flags);
1396 extern errcode_t ext2fs_image_super_write(ext2_filsys fs, int fd, int flags);
1397 extern errcode_t ext2fs_image_super_read(ext2_filsys fs, int fd, int flags);
1398 extern errcode_t ext2fs_image_bitmap_write(ext2_filsys fs, int fd, int flags);
1399 extern errcode_t ext2fs_image_bitmap_read(ext2_filsys fs, int fd, int flags);
1402 errcode_t ext2fs_read_ind_block(ext2_filsys fs, blk_t blk, void *buf);
1403 errcode_t ext2fs_write_ind_block(ext2_filsys fs, blk_t blk, void *buf);
1406 extern errcode_t ext2fs_initialize(const char *name, int flags,
1407 struct ext2_super_block *param,
1408 io_manager manager, ext2_filsys *ret_fs);
1411 extern void ext2fs_free_icount(ext2_icount_t icount);
1412 extern errcode_t ext2fs_create_icount_tdb(ext2_filsys fs, char *tdb_dir,
1413 int flags, ext2_icount_t *ret);
1414 extern errcode_t ext2fs_create_icount2(ext2_filsys fs, int flags,
1416 ext2_icount_t hint, ext2_icount_t *ret);
1417 extern errcode_t ext2fs_create_icount(ext2_filsys fs, int flags,
1419 ext2_icount_t *ret);
1420 extern errcode_t ext2fs_icount_fetch(ext2_icount_t icount, ext2_ino_t ino,
1422 extern errcode_t ext2fs_icount_increment(ext2_icount_t icount, ext2_ino_t ino,
1424 extern errcode_t ext2fs_icount_decrement(ext2_icount_t icount, ext2_ino_t ino,
1426 extern errcode_t ext2fs_icount_store(ext2_icount_t icount, ext2_ino_t ino,
1428 extern ext2_ino_t ext2fs_get_icount_size(ext2_icount_t icount);
1429 errcode_t ext2fs_icount_validate(ext2_icount_t icount, FILE *);
1433 extern errcode_t ext2fs_get_memalign(unsigned long size,
1434 unsigned long align, void *ptr);
1437 extern errcode_t ext2fs_inline_data_init(ext2_filsys fs, ext2_ino_t ino);
1438 extern errcode_t ext2fs_inline_data_size(ext2_filsys fs, ext2_ino_t ino,
1440 extern errcode_t ext2fs_inline_data_get(ext2_filsys fs, ext2_ino_t ino,
1441 struct ext2_inode *inode,
1442 void *buf, size_t *size);
1443 extern errcode_t ext2fs_inline_data_set(ext2_filsys fs, ext2_ino_t ino,
1444 struct ext2_inode *inode,
1445 void *buf, size_t size);
1448 extern errcode_t ext2fs_create_inode_cache(ext2_filsys fs,
1449 unsigned int cache_size);
1450 extern void ext2fs_free_inode_cache(struct ext2_inode_cache *icache);
1451 extern errcode_t ext2fs_flush_icache(ext2_filsys fs);
1452 extern errcode_t ext2fs_get_next_inode_full(ext2_inode_scan scan,
1454 struct ext2_inode *inode,
1456 #define EXT2_INODE_SCAN_DEFAULT_BUFFER_BLOCKS 8
1457 extern errcode_t ext2fs_open_inode_scan(ext2_filsys fs, int buffer_blocks,
1458 ext2_inode_scan *ret_scan);
1459 extern void ext2fs_close_inode_scan(ext2_inode_scan scan);
1460 extern errcode_t ext2fs_get_next_inode(ext2_inode_scan scan, ext2_ino_t *ino,
1461 struct ext2_inode *inode);
1462 extern errcode_t ext2fs_inode_scan_goto_blockgroup(ext2_inode_scan scan,
1464 extern void ext2fs_set_inode_callback
1465 (ext2_inode_scan scan,
1466 errcode_t (*done_group)(ext2_filsys fs,
1467 ext2_inode_scan scan,
1470 void *done_group_data);
1471 extern int ext2fs_inode_scan_flags(ext2_inode_scan scan, int set_flags,
1473 extern errcode_t ext2fs_read_inode_full(ext2_filsys fs, ext2_ino_t ino,
1474 struct ext2_inode * inode,
1476 extern errcode_t ext2fs_read_inode (ext2_filsys fs, ext2_ino_t ino,
1477 struct ext2_inode * inode);
1478 extern errcode_t ext2fs_write_inode_full(ext2_filsys fs, ext2_ino_t ino,
1479 struct ext2_inode * inode,
1481 extern errcode_t ext2fs_write_inode(ext2_filsys fs, ext2_ino_t ino,
1482 struct ext2_inode * inode);
1483 extern errcode_t ext2fs_write_new_inode(ext2_filsys fs, ext2_ino_t ino,
1484 struct ext2_inode * inode);
1485 extern errcode_t ext2fs_get_blocks(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
1486 extern errcode_t ext2fs_check_directory(ext2_filsys fs, ext2_ino_t ino);
1489 extern io_manager inode_io_manager;
1490 extern errcode_t ext2fs_inode_io_intern(ext2_filsys fs, ext2_ino_t ino,
1492 extern errcode_t ext2fs_inode_io_intern2(ext2_filsys fs, ext2_ino_t ino,
1493 struct ext2_inode *inode,
1497 extern errcode_t ext2fs_check_if_mounted(const char *file, int *mount_flags);
1498 extern errcode_t ext2fs_check_mount_point(const char *device, int *mount_flags,
1499 char *mtpt, int mtlen);
1503 * NOTE: This function removes from an inode the blocks "start", "end", and
1504 * every block in between.
1506 extern errcode_t ext2fs_punch(ext2_filsys fs, ext2_ino_t ino,
1507 struct ext2_inode *inode,
1508 char *block_buf, blk64_t start,
1512 extern errcode_t ext2fs_lookup(ext2_filsys fs, ext2_ino_t dir, const char *name,
1513 int namelen, char *buf, ext2_ino_t *inode);
1514 extern errcode_t ext2fs_namei(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1515 const char *name, ext2_ino_t *inode);
1516 errcode_t ext2fs_namei_follow(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1517 const char *name, ext2_ino_t *inode);
1518 extern errcode_t ext2fs_follow_link(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1519 ext2_ino_t inode, ext2_ino_t *res_inode);
1522 int ext2fs_native_flag(void);
1525 extern errcode_t ext2fs_new_dir_block(ext2_filsys fs, ext2_ino_t dir_ino,
1526 ext2_ino_t parent_ino, char **block);
1527 extern errcode_t ext2fs_new_dir_inline_data(ext2_filsys fs, ext2_ino_t dir_ino,
1528 ext2_ino_t parent_ino, __u32 *iblock);
1531 extern errcode_t ext2fs_mkdir(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t inum,
1535 extern errcode_t ext2fs_zero_blocks(ext2_filsys fs, blk_t blk, int num,
1536 blk_t *ret_blk, int *ret_count);
1537 extern errcode_t ext2fs_zero_blocks2(ext2_filsys fs, blk64_t blk, int num,
1538 blk64_t *ret_blk, int *ret_count);
1539 extern errcode_t ext2fs_create_journal_superblock(ext2_filsys fs,
1540 __u32 num_blocks, int flags,
1542 extern errcode_t ext2fs_add_journal_device(ext2_filsys fs,
1543 ext2_filsys journal_dev);
1544 extern errcode_t ext2fs_add_journal_inode(ext2_filsys fs, blk_t num_blocks,
1546 extern errcode_t ext2fs_add_journal_inode2(ext2_filsys fs, blk_t num_blocks,
1547 blk64_t goal, int flags);
1548 extern int ext2fs_default_journal_size(__u64 num_blocks);
1549 extern int ext2fs_journal_sb_start(int blocksize);
1552 extern errcode_t ext2fs_open(const char *name, int flags, int superblock,
1553 unsigned int block_size, io_manager manager,
1554 ext2_filsys *ret_fs);
1555 extern errcode_t ext2fs_open2(const char *name, const char *io_options,
1556 int flags, int superblock,
1557 unsigned int block_size, io_manager manager,
1558 ext2_filsys *ret_fs);
1560 * The dgrp_t argument to these two functions is not actually a group number
1561 * but a block number offset within a group table! Convert with the formula
1562 * (group_number / groups_per_block).
1564 extern blk64_t ext2fs_descriptor_block_loc2(ext2_filsys fs,
1565 blk64_t group_block, dgrp_t i);
1566 extern blk_t ext2fs_descriptor_block_loc(ext2_filsys fs, blk_t group_block,
1568 errcode_t ext2fs_get_data_io(ext2_filsys fs, io_channel *old_io);
1569 errcode_t ext2fs_set_data_io(ext2_filsys fs, io_channel new_io);
1570 errcode_t ext2fs_rewrite_to_io(ext2_filsys fs, io_channel new_io);
1572 /* get_pathname.c */
1573 extern errcode_t ext2fs_get_pathname(ext2_filsys fs, ext2_ino_t dir, ext2_ino_t ino,
1577 errcode_t ext2fs_link(ext2_filsys fs, ext2_ino_t dir, const char *name,
1578 ext2_ino_t ino, int flags);
1579 errcode_t ext2fs_unlink(ext2_filsys fs, ext2_ino_t dir, const char *name,
1580 ext2_ino_t ino, int flags);
1583 errcode_t ext2fs_symlink(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t ino,
1584 const char *name, const char *target);
1587 errcode_t ext2fs_mmp_read(ext2_filsys fs, blk64_t mmp_blk, void *buf);
1588 errcode_t ext2fs_mmp_write(ext2_filsys fs, blk64_t mmp_blk, void *buf);
1589 errcode_t ext2fs_mmp_clear(ext2_filsys fs);
1590 errcode_t ext2fs_mmp_init(ext2_filsys fs);
1591 errcode_t ext2fs_mmp_start(ext2_filsys fs);
1592 errcode_t ext2fs_mmp_update(ext2_filsys fs);
1593 errcode_t ext2fs_mmp_update2(ext2_filsys fs, int immediately);
1594 errcode_t ext2fs_mmp_stop(ext2_filsys fs);
1595 unsigned ext2fs_mmp_new_seq(void);
1598 extern errcode_t ext2fs_read_bb_inode(ext2_filsys fs,
1599 ext2_badblocks_list *bb_list);
1601 /* read_bb_file.c */
1602 extern errcode_t ext2fs_read_bb_FILE2(ext2_filsys fs, FILE *f,
1603 ext2_badblocks_list *bb_list,
1605 void (*invalid)(ext2_filsys fs,
1609 extern errcode_t ext2fs_read_bb_FILE(ext2_filsys fs, FILE *f,
1610 ext2_badblocks_list *bb_list,
1611 void (*invalid)(ext2_filsys fs,
1615 extern errcode_t ext2fs_create_resize_inode(ext2_filsys fs);
1618 #define EXT2FS_SHA256_LENGTH 32
1620 extern void ext2fs_sha256(const unsigned char *in, unsigned long in_size,
1621 unsigned char out[EXT2FS_SHA256_LENGTH]);
1625 #define EXT2FS_SHA512_LENGTH 64
1626 extern void ext2fs_sha512(const unsigned char *in, unsigned long in_size,
1627 unsigned char out[EXT2FS_SHA512_LENGTH]);
1630 extern errcode_t ext2fs_dirent_swab_in2(ext2_filsys fs, char *buf, size_t size,
1632 extern errcode_t ext2fs_dirent_swab_in(ext2_filsys fs, char *buf, int flags);
1633 extern errcode_t ext2fs_dirent_swab_out2(ext2_filsys fs, char *buf, size_t size,
1635 extern errcode_t ext2fs_dirent_swab_out(ext2_filsys fs, char *buf, int flags);
1636 extern void ext2fs_swap_ext_attr(char *to, char *from, int bufsize,
1638 extern void ext2fs_swap_ext_attr_header(struct ext2_ext_attr_header *to_header,
1639 struct ext2_ext_attr_header *from_hdr);
1640 extern void ext2fs_swap_ext_attr_entry(struct ext2_ext_attr_entry *to_entry,
1641 struct ext2_ext_attr_entry *from_entry);
1642 extern void ext2fs_swap_super(struct ext2_super_block * super);
1643 extern void ext2fs_swap_group_desc(struct ext2_group_desc *gdp);
1644 extern void ext2fs_swap_group_desc2(ext2_filsys, struct ext2_group_desc *gdp);
1645 extern void ext2fs_swap_inode_full(ext2_filsys fs, struct ext2_inode_large *t,
1646 struct ext2_inode_large *f, int hostorder,
1648 extern void ext2fs_swap_inode(ext2_filsys fs,struct ext2_inode *t,
1649 struct ext2_inode *f, int hostorder);
1650 extern void ext2fs_swap_mmp(struct mmp_struct *mmp);
1653 extern int ext2fs_open_file(const char *pathname, int flags, mode_t mode);
1654 extern int ext2fs_stat(const char *path, ext2fs_struct_stat *buf);
1655 extern int ext2fs_fstat(int fd, ext2fs_struct_stat *buf);
1658 extern int ext2fs_inode_has_valid_blocks(struct ext2_inode *inode);
1659 extern int ext2fs_inode_has_valid_blocks2(ext2_filsys fs,
1660 struct ext2_inode *inode);
1663 extern int ext2fs_parse_version_string(const char *ver_string);
1664 extern int ext2fs_get_library_version(const char **ver_string,
1665 const char **date_string);
1667 /* write_bb_file.c */
1668 extern errcode_t ext2fs_write_bb_FILE(ext2_badblocks_list bb_list,
1673 /* inline functions */
1674 #ifdef NO_INLINE_FUNCS
1675 extern errcode_t ext2fs_get_mem(unsigned long size, void *ptr);
1676 extern errcode_t ext2fs_get_memzero(unsigned long size, void *ptr);
1677 extern errcode_t ext2fs_get_array(unsigned long count,
1678 unsigned long size, void *ptr);
1679 extern errcode_t ext2fs_get_arrayzero(unsigned long count,
1680 unsigned long size, void *ptr);
1681 extern errcode_t ext2fs_free_mem(void *ptr);
1682 extern errcode_t ext2fs_resize_mem(unsigned long old_size,
1683 unsigned long size, void *ptr);
1684 extern void ext2fs_mark_super_dirty(ext2_filsys fs);
1685 extern void ext2fs_mark_changed(ext2_filsys fs);
1686 extern int ext2fs_test_changed(ext2_filsys fs);
1687 extern void ext2fs_mark_valid(ext2_filsys fs);
1688 extern void ext2fs_unmark_valid(ext2_filsys fs);
1689 extern int ext2fs_test_valid(ext2_filsys fs);
1690 extern void ext2fs_mark_ib_dirty(ext2_filsys fs);
1691 extern void ext2fs_mark_bb_dirty(ext2_filsys fs);
1692 extern int ext2fs_test_ib_dirty(ext2_filsys fs);
1693 extern int ext2fs_test_bb_dirty(ext2_filsys fs);
1694 extern dgrp_t ext2fs_group_of_blk(ext2_filsys fs, blk_t blk);
1695 extern dgrp_t ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino);
1696 extern blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group);
1697 extern blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group);
1698 extern blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
1699 struct ext2_inode *inode);
1700 extern unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b);
1701 extern __u64 ext2fs_div64_ceil(__u64 a, __u64 b);
1702 extern int ext2fs_dirent_name_len(const struct ext2_dir_entry *entry);
1703 extern void ext2fs_dirent_set_name_len(struct ext2_dir_entry *entry, int len);
1704 extern int ext2fs_dirent_file_type(const struct ext2_dir_entry *entry);
1705 extern void ext2fs_dirent_set_file_type(struct ext2_dir_entry *entry, int type);
1706 extern struct ext2_inode *ext2fs_inode(struct ext2_inode_large * large_inode);
1707 extern const struct ext2_inode *ext2fs_const_inode(const struct ext2_inode_large * large_inode);
1712 * The actual inlined functions definitions themselves...
1714 * If NO_INLINE_FUNCS is defined, then we won't try to do inline
1717 #if (defined(INCLUDE_INLINE_FUNCS) || !defined(NO_INLINE_FUNCS))
1718 #ifdef INCLUDE_INLINE_FUNCS
1719 #define _INLINE_ extern
1721 #if (__STDC_VERSION__ >= 199901L)
1722 #define _INLINE_ inline
1725 #define _INLINE_ extern __inline__
1726 #else /* For Watcom C */
1727 #define _INLINE_ extern inline
1728 #endif /* __GNUC__ */
1729 #endif /* __STDC_VERSION__ >= 199901L */
1732 #ifndef EXT2_CUSTOM_MEMORY_ROUTINES
1735 * Allocate memory. The 'ptr' arg must point to a pointer.
1737 _INLINE_ errcode_t ext2fs_get_mem(unsigned long size, void *ptr)
1743 return EXT2_ET_NO_MEMORY;
1744 memcpy(ptr, &pp, sizeof (pp));
1748 _INLINE_ errcode_t ext2fs_get_memzero(unsigned long size, void *ptr)
1754 return EXT2_ET_NO_MEMORY;
1755 memset(pp, 0, size);
1756 memcpy(ptr, &pp, sizeof(pp));
1760 _INLINE_ errcode_t ext2fs_get_array(unsigned long count, unsigned long size, void *ptr)
1762 if (count && (~0UL)/count < size)
1763 return EXT2_ET_NO_MEMORY;
1764 return ext2fs_get_mem(count*size, ptr);
1767 _INLINE_ errcode_t ext2fs_get_arrayzero(unsigned long count,
1768 unsigned long size, void *ptr)
1772 if (count && (~0UL)/count < size)
1773 return EXT2_ET_NO_MEMORY;
1774 pp = calloc(count, size);
1776 return EXT2_ET_NO_MEMORY;
1777 memcpy(ptr, &pp, sizeof(pp));
1782 * Free memory. The 'ptr' arg must point to a pointer.
1784 _INLINE_ errcode_t ext2fs_free_mem(void *ptr)
1788 memcpy(&p, ptr, sizeof(p));
1791 memcpy(ptr, &p, sizeof(p));
1796 * Resize memory. The 'ptr' arg must point to a pointer.
1798 _INLINE_ errcode_t ext2fs_resize_mem(unsigned long EXT2FS_ATTR((unused)) old_size,
1799 unsigned long size, void *ptr)
1803 /* Use "memcpy" for pointer assignments here to avoid problems
1804 * with C99 strict type aliasing rules. */
1805 memcpy(&p, ptr, sizeof(p));
1806 p = realloc(p, size);
1808 return EXT2_ET_NO_MEMORY;
1809 memcpy(ptr, &p, sizeof(p));
1812 #endif /* Custom memory routines */
1815 * Mark a filesystem superblock as dirty
1817 _INLINE_ void ext2fs_mark_super_dirty(ext2_filsys fs)
1819 fs->flags |= EXT2_FLAG_DIRTY | EXT2_FLAG_CHANGED;
1823 * Mark a filesystem as changed
1825 _INLINE_ void ext2fs_mark_changed(ext2_filsys fs)
1827 fs->flags |= EXT2_FLAG_CHANGED;
1831 * Check to see if a filesystem has changed
1833 _INLINE_ int ext2fs_test_changed(ext2_filsys fs)
1835 return (fs->flags & EXT2_FLAG_CHANGED);
1839 * Mark a filesystem as valid
1841 _INLINE_ void ext2fs_mark_valid(ext2_filsys fs)
1843 fs->flags |= EXT2_FLAG_VALID;
1847 * Mark a filesystem as NOT valid
1849 _INLINE_ void ext2fs_unmark_valid(ext2_filsys fs)
1851 fs->flags &= ~EXT2_FLAG_VALID;
1855 * Check to see if a filesystem is valid
1857 _INLINE_ int ext2fs_test_valid(ext2_filsys fs)
1859 return (fs->flags & EXT2_FLAG_VALID);
1863 * Mark the inode bitmap as dirty
1865 _INLINE_ void ext2fs_mark_ib_dirty(ext2_filsys fs)
1867 fs->flags |= EXT2_FLAG_IB_DIRTY | EXT2_FLAG_CHANGED;
1871 * Mark the block bitmap as dirty
1873 _INLINE_ void ext2fs_mark_bb_dirty(ext2_filsys fs)
1875 fs->flags |= EXT2_FLAG_BB_DIRTY | EXT2_FLAG_CHANGED;
1879 * Check to see if a filesystem's inode bitmap is dirty
1881 _INLINE_ int ext2fs_test_ib_dirty(ext2_filsys fs)
1883 return (fs->flags & EXT2_FLAG_IB_DIRTY);
1887 * Check to see if a filesystem's block bitmap is dirty
1889 _INLINE_ int ext2fs_test_bb_dirty(ext2_filsys fs)
1891 return (fs->flags & EXT2_FLAG_BB_DIRTY);
1895 * Return the group # of a block
1897 _INLINE_ dgrp_t ext2fs_group_of_blk(ext2_filsys fs, blk_t blk)
1899 return ext2fs_group_of_blk2(fs, blk);
1902 * Return the group # of an inode number
1904 _INLINE_ dgrp_t ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino)
1906 return (ino - 1) / fs->super->s_inodes_per_group;
1910 * Return the first block (inclusive) in a group
1912 _INLINE_ blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group)
1914 return (blk_t) ext2fs_group_first_block2(fs, group);
1918 * Return the last block (inclusive) in a group
1920 _INLINE_ blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group)
1922 return (blk_t) ext2fs_group_last_block2(fs, group);
1925 _INLINE_ blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
1926 struct ext2_inode *inode)
1928 return (blk_t) ext2fs_inode_data_blocks2(fs, inode);
1932 * This is an efficient, overflow safe way of calculating ceil((1.0 * a) / b)
1934 _INLINE_ unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b)
1938 return ((a - 1) / b) + 1;
1941 _INLINE_ __u64 ext2fs_div64_ceil(__u64 a, __u64 b)
1945 return ((a - 1) / b) + 1;
1948 _INLINE_ int ext2fs_dirent_name_len(const struct ext2_dir_entry *entry)
1950 return entry->name_len & 0xff;
1953 _INLINE_ void ext2fs_dirent_set_name_len(struct ext2_dir_entry *entry, int len)
1955 entry->name_len = (entry->name_len & 0xff00) | (len & 0xff);
1958 _INLINE_ int ext2fs_dirent_file_type(const struct ext2_dir_entry *entry)
1960 return entry->name_len >> 8;
1963 _INLINE_ void ext2fs_dirent_set_file_type(struct ext2_dir_entry *entry, int type)
1965 entry->name_len = (entry->name_len & 0xff) | (type << 8);
1968 _INLINE_ struct ext2_inode *ext2fs_inode(struct ext2_inode_large * large_inode)
1970 /* It is always safe to convert large inode to a small inode */
1971 return (struct ext2_inode *) large_inode;
1974 _INLINE_ const struct ext2_inode *
1975 ext2fs_const_inode(const struct ext2_inode_large * large_inode)
1977 /* It is always safe to convert large inode to a small inode */
1978 return (const struct ext2_inode *) large_inode;
1988 #endif /* _EXT2FS_EXT2FS_H */