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
42 #define UUID_STR_SIZE 37
45 * The last ext2fs revision level that this version of the library is
48 #define EXT2_LIB_CURRENT_REV EXT2_DYNAMIC_REV
50 #ifdef HAVE_SYS_TYPES_H
51 #include <sys/types.h>
59 #if EXT2_FLAT_INCLUDES
62 #include "ext3_extents.h"
64 #include <ext2fs/ext2_types.h>
65 #include <ext2fs/ext2_fs.h>
66 #include <ext2fs/ext3_extents.h>
67 #endif /* EXT2_FLAT_INCLUDES */
69 #ifdef __CHECK_ENDIAN__
70 #define __bitwise __attribute__((bitwise))
75 typedef __u32 __bitwise ext2_ino_t;
76 typedef __u32 __bitwise blk_t;
77 typedef __u64 __bitwise blk64_t;
78 typedef __u32 __bitwise dgrp_t;
79 typedef __u32 __bitwise ext2_off_t;
80 typedef __u64 __bitwise ext2_off64_t;
81 typedef __s64 __bitwise e2_blkcnt_t;
82 typedef __u32 __bitwise ext2_dirhash_t;
84 #if EXT2_FLAT_INCLUDES
88 #include "ext2_ext_attr.h"
90 #include <et/com_err.h>
91 #include <ext2fs/ext2_io.h>
92 #include <ext2fs/ext2_err.h>
93 #include <ext2fs/ext2_ext_attr.h>
97 * Portability help for Microsoft Visual C++
100 #define EXT2_QSORT_TYPE int __cdecl
102 #define EXT2_QSORT_TYPE int
105 typedef struct struct_ext2_filsys *ext2_filsys;
107 #define EXT2FS_MARK_ERROR 0
108 #define EXT2FS_UNMARK_ERROR 1
109 #define EXT2FS_TEST_ERROR 2
111 typedef struct ext2fs_struct_generic_bitmap *ext2fs_generic_bitmap;
112 typedef struct ext2fs_struct_generic_bitmap *ext2fs_inode_bitmap;
113 typedef struct ext2fs_struct_generic_bitmap *ext2fs_block_bitmap;
115 #define EXT2_FIRST_INODE(s) EXT2_FIRST_INO(s)
119 * Badblocks list definitions
122 typedef struct ext2_struct_u32_list *ext2_badblocks_list;
123 typedef struct ext2_struct_u32_iterate *ext2_badblocks_iterate;
125 typedef struct ext2_struct_u32_list *ext2_u32_list;
126 typedef struct ext2_struct_u32_iterate *ext2_u32_iterate;
129 typedef struct ext2_struct_u32_list *badblocks_list;
130 typedef struct ext2_struct_u32_iterate *badblocks_iterate;
132 #define BADBLOCKS_FLAG_DIRTY 1
135 * ext2_dblist structure and abstractions (see dblist.c)
137 struct ext2_db_entry2 {
140 e2_blkcnt_t blockcnt;
143 /* Ye Olde 32-bit version */
144 struct ext2_db_entry {
150 typedef struct ext2_struct_dblist *ext2_dblist;
152 #define DBLIST_ABORT 1
155 * ext2_fileio definitions
158 #define EXT2_FILE_WRITE 0x0001
159 #define EXT2_FILE_CREATE 0x0002
161 #define EXT2_FILE_MASK 0x00FF
163 #define EXT2_FILE_BUF_DIRTY 0x4000
164 #define EXT2_FILE_BUF_VALID 0x2000
166 typedef struct ext2_file *ext2_file_t;
168 #define EXT2_SEEK_SET 0
169 #define EXT2_SEEK_CUR 1
170 #define EXT2_SEEK_END 2
173 * Flags for the ext2_filsys structure and for ext2fs_open()
175 #define EXT2_FLAG_RW 0x01
176 #define EXT2_FLAG_CHANGED 0x02
177 #define EXT2_FLAG_DIRTY 0x04
178 #define EXT2_FLAG_VALID 0x08
179 #define EXT2_FLAG_IB_DIRTY 0x10
180 #define EXT2_FLAG_BB_DIRTY 0x20
181 #define EXT2_FLAG_SWAP_BYTES 0x40
182 #define EXT2_FLAG_SWAP_BYTES_READ 0x80
183 #define EXT2_FLAG_SWAP_BYTES_WRITE 0x100
184 #define EXT2_FLAG_MASTER_SB_ONLY 0x200
185 #define EXT2_FLAG_FORCE 0x400
186 #define EXT2_FLAG_SUPER_ONLY 0x800
187 #define EXT2_FLAG_JOURNAL_DEV_OK 0x1000
188 #define EXT2_FLAG_IMAGE_FILE 0x2000
189 #define EXT2_FLAG_EXCLUSIVE 0x4000
190 #define EXT2_FLAG_SOFTSUPP_FEATURES 0x8000
191 #define EXT2_FLAG_NOFREE_ON_ERROR 0x10000
192 #define EXT2_FLAG_64BITS 0x20000
193 #define EXT2_FLAG_PRINT_PROGRESS 0x40000
194 #define EXT2_FLAG_DIRECT_IO 0x80000
195 #define EXT2_FLAG_SKIP_MMP 0x100000
196 #define EXT2_FLAG_IGNORE_CSUM_ERRORS 0x200000
199 * Special flag in the ext2 inode i_flag field that means that this is
200 * a new inode. (So that ext2_write_inode() can clear extra fields.)
202 #define EXT2_NEW_INODE_FL 0x80000000
205 * Flags for mkjournal
207 #define EXT2_MKJOURNAL_V1_SUPER 0x0000001 /* create V1 superblock (deprecated) */
208 #define EXT2_MKJOURNAL_LAZYINIT 0x0000002 /* don't zero journal inode before use*/
209 #define EXT2_MKJOURNAL_NO_MNT_CHECK 0x0000004 /* don't check mount status */
211 struct opaque_ext2_group_desc;
213 struct struct_ext2_filsys {
218 struct ext2_super_block * super;
219 unsigned int blocksize;
221 dgrp_t group_desc_count;
222 unsigned long desc_blocks;
223 struct opaque_ext2_group_desc * group_desc;
224 unsigned int inode_blocks_per_group;
225 ext2fs_inode_bitmap inode_map;
226 ext2fs_block_bitmap block_map;
227 /* XXX FIXME-64: not 64-bit safe, but not used? */
228 errcode_t (*get_blocks)(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
229 errcode_t (*check_directory)(ext2_filsys fs, ext2_ino_t ino);
230 errcode_t (*write_bitmaps)(ext2_filsys fs);
231 errcode_t (*read_inode)(ext2_filsys fs, ext2_ino_t ino,
232 struct ext2_inode *inode);
233 errcode_t (*write_inode)(ext2_filsys fs, ext2_ino_t ino,
234 struct ext2_inode *inode);
235 ext2_badblocks_list badblocks;
237 __u32 stride; /* for mke2fs */
238 struct ext2_super_block * orig_super;
239 struct ext2_image_hdr * image_header;
242 int cluster_ratio_bits;
243 __u16 default_bitmap_type;
246 * Reserved for future expansion
251 * Reserved for the use of the calling application.
258 struct ext2_inode_cache *icache;
262 * More callback functions
264 errcode_t (*get_alloc_block)(ext2_filsys fs, blk64_t goal,
266 void (*block_alloc_stats)(ext2_filsys fs, blk64_t blk, int inuse);
269 * Buffers for Multiple mount protection(MMP) block.
276 * Time at which e2fsck last updated the MMP block.
278 long mmp_last_written;
280 /* progress operation functions */
281 struct ext2fs_progress_ops *progress_ops;
283 /* Precomputed FS UUID checksum for seeding other checksums */
287 #if EXT2_FLAT_INCLUDES
288 #include "e2_bitops.h"
290 #include <ext2fs/bitops.h>
294 * 64-bit bitmap backend types
296 #define EXT2FS_BMAP64_BITARRAY 1
297 #define EXT2FS_BMAP64_RBTREE 2
298 #define EXT2FS_BMAP64_AUTODIR 3
301 * Return flags for the block iterator functions
303 #define BLOCK_CHANGED 1
304 #define BLOCK_ABORT 2
305 #define BLOCK_ERROR 4
306 #define BLOCK_INLINE_DATA_CHANGED 8
309 * Block interate flags
311 * BLOCK_FLAG_APPEND, or BLOCK_FLAG_HOLE, indicates that the interator
312 * function should be called on blocks where the block number is zero.
313 * This is used by ext2fs_expand_dir() to be able to add a new block
314 * to an inode. It can also be used for programs that want to be able
315 * to deal with files that contain "holes".
317 * BLOCK_FLAG_DEPTH_TRAVERSE indicates that the iterator function for
318 * the indirect, doubly indirect, etc. blocks should be called after
319 * all of the blocks containined in the indirect blocks are processed.
320 * This is useful if you are going to be deallocating blocks from an
323 * BLOCK_FLAG_DATA_ONLY indicates that the iterator function should be
324 * called for data blocks only.
326 * BLOCK_FLAG_READ_ONLY is a promise by the caller that it will not
327 * modify returned block number.
329 * BLOCK_FLAG_NO_LARGE is for internal use only. It informs
330 * ext2fs_block_iterate2 that large files won't be accepted.
332 #define BLOCK_FLAG_APPEND 1
333 #define BLOCK_FLAG_HOLE 1
334 #define BLOCK_FLAG_DEPTH_TRAVERSE 2
335 #define BLOCK_FLAG_DATA_ONLY 4
336 #define BLOCK_FLAG_READ_ONLY 8
338 #define BLOCK_FLAG_NO_LARGE 0x1000
341 * Magic "block count" return values for the block iterator function.
343 #define BLOCK_COUNT_IND (-1)
344 #define BLOCK_COUNT_DIND (-2)
345 #define BLOCK_COUNT_TIND (-3)
346 #define BLOCK_COUNT_TRANSLATOR (-4)
350 * Flags for ext2fs_move_blocks
352 #define EXT2_BMOVE_GET_DBLIST 0x0001
353 #define EXT2_BMOVE_DEBUG 0x0002
357 * Generic (non-filesystem layout specific) extents structure
360 #define EXT2_EXTENT_FLAGS_LEAF 0x0001
361 #define EXT2_EXTENT_FLAGS_UNINIT 0x0002
362 #define EXT2_EXTENT_FLAGS_SECOND_VISIT 0x0004
364 struct ext2fs_extent {
365 blk64_t e_pblk; /* first physical block */
366 blk64_t e_lblk; /* first logical block extent covers */
367 __u32 e_len; /* number of blocks covered by extent */
368 __u32 e_flags; /* extent flags */
371 typedef struct ext2_extent_handle *ext2_extent_handle_t;
372 typedef struct ext2_extent_path *ext2_extent_path_t;
375 * Flags used by ext2fs_extent_get()
377 #define EXT2_EXTENT_CURRENT 0x0000
378 #define EXT2_EXTENT_MOVE_MASK 0x000F
379 #define EXT2_EXTENT_ROOT 0x0001
380 #define EXT2_EXTENT_LAST_LEAF 0x0002
381 #define EXT2_EXTENT_FIRST_SIB 0x0003
382 #define EXT2_EXTENT_LAST_SIB 0x0004
383 #define EXT2_EXTENT_NEXT_SIB 0x0005
384 #define EXT2_EXTENT_PREV_SIB 0x0006
385 #define EXT2_EXTENT_NEXT_LEAF 0x0007
386 #define EXT2_EXTENT_PREV_LEAF 0x0008
387 #define EXT2_EXTENT_NEXT 0x0009
388 #define EXT2_EXTENT_PREV 0x000A
389 #define EXT2_EXTENT_UP 0x000B
390 #define EXT2_EXTENT_DOWN 0x000C
391 #define EXT2_EXTENT_DOWN_AND_LAST 0x000D
394 * Flags used by ext2fs_extent_insert()
396 #define EXT2_EXTENT_INSERT_AFTER 0x0001 /* insert after handle loc'n */
397 #define EXT2_EXTENT_INSERT_NOSPLIT 0x0002 /* insert may not cause split */
400 * Flags used by ext2fs_extent_delete()
402 #define EXT2_EXTENT_DELETE_KEEP_EMPTY 0x001 /* keep node if last extnt gone */
405 * Flags used by ext2fs_extent_set_bmap()
407 #define EXT2_EXTENT_SET_BMAP_UNINIT 0x0001
410 * Data structure returned by ext2fs_extent_get_info()
412 struct ext2_extent_info {
422 __u32 max_uninit_len;
426 * Flags for directory block reading and writing functions
428 #define EXT2_DIRBLOCK_V2_STRUCT 0x0001
431 * Return flags for the directory iterator functions
433 #define DIRENT_CHANGED 1
434 #define DIRENT_ABORT 2
435 #define DIRENT_ERROR 3
438 * Directory iterator flags
441 #define DIRENT_FLAG_INCLUDE_EMPTY 1
442 #define DIRENT_FLAG_INCLUDE_REMOVED 2
443 #define DIRENT_FLAG_INCLUDE_CSUM 4
444 #define DIRENT_FLAG_INCLUDE_INLINE_DATA 8
446 #define DIRENT_DOT_FILE 1
447 #define DIRENT_DOT_DOT_FILE 2
448 #define DIRENT_OTHER_FILE 3
449 #define DIRENT_DELETED_FILE 4
450 #define DIRENT_CHECKSUM 5
453 * Inode scan definitions
455 typedef struct ext2_struct_inode_scan *ext2_inode_scan;
460 #define EXT2_SF_CHK_BADBLOCKS 0x0001
461 #define EXT2_SF_BAD_INODE_BLK 0x0002
462 #define EXT2_SF_BAD_EXTRA_BYTES 0x0004
463 #define EXT2_SF_SKIP_MISSING_ITABLE 0x0008
464 #define EXT2_SF_DO_LAZY 0x0010
467 * ext2fs_check_if_mounted flags
469 #define EXT2_MF_MOUNTED 1
470 #define EXT2_MF_ISROOT 2
471 #define EXT2_MF_READONLY 4
472 #define EXT2_MF_SWAP 8
473 #define EXT2_MF_BUSY 16
476 * Ext2/linux mode flags. We define them here so that we don't need
477 * to depend on the OS's sys/stat.h, since we may be compiling on a
480 #define LINUX_S_IFMT 00170000
481 #define LINUX_S_IFSOCK 0140000
482 #define LINUX_S_IFLNK 0120000
483 #define LINUX_S_IFREG 0100000
484 #define LINUX_S_IFBLK 0060000
485 #define LINUX_S_IFDIR 0040000
486 #define LINUX_S_IFCHR 0020000
487 #define LINUX_S_IFIFO 0010000
488 #define LINUX_S_ISUID 0004000
489 #define LINUX_S_ISGID 0002000
490 #define LINUX_S_ISVTX 0001000
492 #define LINUX_S_IRWXU 00700
493 #define LINUX_S_IRUSR 00400
494 #define LINUX_S_IWUSR 00200
495 #define LINUX_S_IXUSR 00100
497 #define LINUX_S_IRWXG 00070
498 #define LINUX_S_IRGRP 00040
499 #define LINUX_S_IWGRP 00020
500 #define LINUX_S_IXGRP 00010
502 #define LINUX_S_IRWXO 00007
503 #define LINUX_S_IROTH 00004
504 #define LINUX_S_IWOTH 00002
505 #define LINUX_S_IXOTH 00001
507 #define LINUX_S_ISLNK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFLNK)
508 #define LINUX_S_ISREG(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFREG)
509 #define LINUX_S_ISDIR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFDIR)
510 #define LINUX_S_ISCHR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFCHR)
511 #define LINUX_S_ISBLK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFBLK)
512 #define LINUX_S_ISFIFO(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFIFO)
513 #define LINUX_S_ISSOCK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFSOCK)
516 * ext2 size of an inode
518 #define EXT2_I_SIZE(i) ((i)->i_size | ((__u64) (i)->i_size_high << 32))
521 * ext2_icount_t abstraction
523 #define EXT2_ICOUNT_OPT_INCREMENT 0x01
525 typedef struct ext2_icount *ext2_icount_t;
528 * Flags for ext2fs_bmap
530 #define BMAP_ALLOC 0x0001
531 #define BMAP_SET 0x0002
534 * Returned flags from ext2fs_bmap
536 #define BMAP_RET_UNINIT 0x0001
539 * Flags for imager.c functions
541 #define IMAGER_FLAG_INODEMAP 1
542 #define IMAGER_FLAG_SPARSEWRITE 2
545 * For checking structure magic numbers...
548 #define EXT2_CHECK_MAGIC(struct, code) \
549 if ((struct)->magic != (code)) return (code)
553 * For ext2 compression support
555 #define EXT2FS_COMPRESSED_BLKADDR ((blk_t) -1)
556 #define HOLE_BLKADDR(_b) ((_b) == 0 || (_b) == EXT2FS_COMPRESSED_BLKADDR)
559 * Features supported by this version of the library
561 #define EXT2_LIB_FEATURE_COMPAT_SUPP (EXT2_FEATURE_COMPAT_DIR_PREALLOC|\
562 EXT2_FEATURE_COMPAT_IMAGIC_INODES|\
563 EXT3_FEATURE_COMPAT_HAS_JOURNAL|\
564 EXT2_FEATURE_COMPAT_RESIZE_INODE|\
565 EXT2_FEATURE_COMPAT_DIR_INDEX|\
566 EXT2_FEATURE_COMPAT_EXT_ATTR|\
567 EXT4_FEATURE_COMPAT_SPARSE_SUPER2)
569 /* This #ifdef is temporary until compression is fully supported */
570 #ifdef ENABLE_COMPRESSION
571 #ifndef I_KNOW_THAT_COMPRESSION_IS_EXPERIMENTAL
572 /* If the below warning bugs you, then have
573 `CPPFLAGS=-DI_KNOW_THAT_COMPRESSION_IS_EXPERIMENTAL' in your
574 environment at configure time. */
575 #warning "Compression support is experimental"
577 #define EXT2_LIB_INCOMPAT_COMPRESSION EXT2_FEATURE_INCOMPAT_COMPRESSION
579 #define EXT2_LIB_INCOMPAT_COMPRESSION (0)
583 #define EXT4_LIB_INCOMPAT_MMP EXT4_FEATURE_INCOMPAT_MMP
585 #define EXT4_LIB_INCOMPAT_MMP (0)
589 #define EXT4_LIB_RO_COMPAT_QUOTA EXT4_FEATURE_RO_COMPAT_QUOTA
591 #define EXT4_LIB_RO_COMPAT_QUOTA (0)
594 #define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\
595 EXT2_LIB_INCOMPAT_COMPRESSION|\
596 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\
597 EXT2_FEATURE_INCOMPAT_META_BG|\
598 EXT3_FEATURE_INCOMPAT_RECOVER|\
599 EXT3_FEATURE_INCOMPAT_EXTENTS|\
600 EXT4_FEATURE_INCOMPAT_FLEX_BG|\
601 EXT4_LIB_INCOMPAT_MMP|\
602 EXT4_FEATURE_INCOMPAT_64BIT|\
603 EXT4_FEATURE_INCOMPAT_INLINE_DATA)
605 #define EXT2_LIB_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|\
606 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|\
607 EXT2_FEATURE_RO_COMPAT_LARGE_FILE|\
608 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|\
609 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|\
610 EXT4_FEATURE_RO_COMPAT_GDT_CSUM|\
611 EXT4_FEATURE_RO_COMPAT_BIGALLOC|\
612 EXT4_LIB_RO_COMPAT_QUOTA|\
613 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM)
616 * These features are only allowed if EXT2_FLAG_SOFTSUPP_FEATURES is passed
619 #define EXT2_LIB_SOFTSUPP_INCOMPAT (EXT4_FEATURE_INCOMPAT_INLINE_DATA)
620 #define EXT2_LIB_SOFTSUPP_RO_COMPAT (EXT4_FEATURE_RO_COMPAT_REPLICA)
623 /* Translate a block number to a cluster number */
624 #define EXT2FS_CLUSTER_RATIO(fs) (1 << (fs)->cluster_ratio_bits)
625 #define EXT2FS_CLUSTER_MASK(fs) (EXT2FS_CLUSTER_RATIO(fs) - 1)
626 #define EXT2FS_B2C(fs, blk) ((blk) >> (fs)->cluster_ratio_bits)
627 /* Translate a cluster number to a block number */
628 #define EXT2FS_C2B(fs, cluster) ((cluster) << (fs)->cluster_ratio_bits)
629 /* Translate # of blks to # of clusters */
630 #define EXT2FS_NUM_B2C(fs, blks) (((blks) + EXT2FS_CLUSTER_MASK(fs)) >> \
631 (fs)->cluster_ratio_bits)
633 #if defined(HAVE_FSTAT64) && !defined(__OSX_AVAILABLE_BUT_DEPRECATED)
634 typedef struct stat64 ext2fs_struct_stat;
636 typedef struct stat ext2fs_struct_stat;
640 * For ext2fs_close2() and ext2fs_flush2(), this flag allows you to
641 * avoid the fsync call.
643 #define EXT2_FLAG_FLUSH_NO_SYNC 1
646 * Modify and iterate extended attributes
648 struct ext2_xattr_handle;
649 #define XATTR_ABORT 1
650 #define XATTR_CHANGED 2
653 * function prototypes
655 static inline int ext2fs_has_group_desc_csum(ext2_filsys fs)
657 return EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
658 EXT4_FEATURE_RO_COMPAT_GDT_CSUM |
659 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM);
662 /* The LARGE_FILE feature should be set if we have stored files 2GB+ in size */
663 static inline int ext2fs_needs_large_file_feature(unsigned long long file_size)
665 return file_size >= 0x80000000ULL;
669 extern errcode_t ext2fs_new_inode(ext2_filsys fs, ext2_ino_t dir, int mode,
670 ext2fs_inode_bitmap map, ext2_ino_t *ret);
671 extern errcode_t ext2fs_new_block(ext2_filsys fs, blk_t goal,
672 ext2fs_block_bitmap map, blk_t *ret);
673 extern errcode_t ext2fs_new_block2(ext2_filsys fs, blk64_t goal,
674 ext2fs_block_bitmap map, blk64_t *ret);
675 extern errcode_t ext2fs_get_free_blocks(ext2_filsys fs, blk_t start,
676 blk_t finish, int num,
677 ext2fs_block_bitmap map,
679 extern errcode_t ext2fs_get_free_blocks2(ext2_filsys fs, blk64_t start,
680 blk64_t finish, int num,
681 ext2fs_block_bitmap map,
683 extern errcode_t ext2fs_alloc_block(ext2_filsys fs, blk_t goal,
684 char *block_buf, blk_t *ret);
685 extern errcode_t ext2fs_alloc_block2(ext2_filsys fs, blk64_t goal,
686 char *block_buf, blk64_t *ret);
687 extern void ext2fs_set_alloc_block_callback(ext2_filsys fs,
688 errcode_t (*func)(ext2_filsys fs,
691 errcode_t (**old)(ext2_filsys fs,
696 extern int ext2fs_reserve_super_and_bgd(ext2_filsys fs,
698 ext2fs_block_bitmap bmap);
699 extern void ext2fs_set_block_alloc_stats_callback(ext2_filsys fs,
700 void (*func)(ext2_filsys fs,
703 void (**old)(ext2_filsys fs,
708 void ext2fs_inode_alloc_stats(ext2_filsys fs, ext2_ino_t ino, int inuse);
709 void ext2fs_inode_alloc_stats2(ext2_filsys fs, ext2_ino_t ino,
710 int inuse, int isdir);
711 void ext2fs_block_alloc_stats(ext2_filsys fs, blk_t blk, int inuse);
712 void ext2fs_block_alloc_stats2(ext2_filsys fs, blk64_t blk, int inuse);
713 void ext2fs_block_alloc_stats_range(ext2_filsys fs, blk64_t blk,
714 blk_t num, int inuse);
717 extern errcode_t ext2fs_allocate_tables(ext2_filsys fs);
718 extern errcode_t ext2fs_allocate_group_table(ext2_filsys fs, dgrp_t group,
719 ext2fs_block_bitmap bmap);
722 extern errcode_t ext2fs_u32_list_create(ext2_u32_list *ret, int size);
723 extern errcode_t ext2fs_u32_list_add(ext2_u32_list bb, __u32 blk);
724 extern int ext2fs_u32_list_find(ext2_u32_list bb, __u32 blk);
725 extern int ext2fs_u32_list_test(ext2_u32_list bb, blk_t blk);
726 extern errcode_t ext2fs_u32_list_iterate_begin(ext2_u32_list bb,
727 ext2_u32_iterate *ret);
728 extern int ext2fs_u32_list_iterate(ext2_u32_iterate iter, blk_t *blk);
729 extern void ext2fs_u32_list_iterate_end(ext2_u32_iterate iter);
730 extern errcode_t ext2fs_u32_copy(ext2_u32_list src, ext2_u32_list *dest);
731 extern int ext2fs_u32_list_equal(ext2_u32_list bb1, ext2_u32_list bb2);
733 extern errcode_t ext2fs_badblocks_list_create(ext2_badblocks_list *ret,
735 extern errcode_t ext2fs_badblocks_list_add(ext2_badblocks_list bb,
737 extern int ext2fs_badblocks_list_test(ext2_badblocks_list bb,
739 extern int ext2fs_u32_list_del(ext2_u32_list bb, __u32 blk);
740 extern void ext2fs_badblocks_list_del(ext2_u32_list bb, __u32 blk);
742 ext2fs_badblocks_list_iterate_begin(ext2_badblocks_list bb,
743 ext2_badblocks_iterate *ret);
744 extern int ext2fs_badblocks_list_iterate(ext2_badblocks_iterate iter,
746 extern void ext2fs_badblocks_list_iterate_end(ext2_badblocks_iterate iter);
747 extern errcode_t ext2fs_badblocks_copy(ext2_badblocks_list src,
748 ext2_badblocks_list *dest);
749 extern int ext2fs_badblocks_equal(ext2_badblocks_list bb1,
750 ext2_badblocks_list bb2);
751 extern int ext2fs_u32_list_count(ext2_u32_list bb);
754 extern errcode_t badblocks_list_create(badblocks_list *ret, int size);
755 extern errcode_t badblocks_list_add(badblocks_list bb, blk_t blk);
756 extern int badblocks_list_test(badblocks_list bb, blk_t blk);
757 extern errcode_t badblocks_list_iterate_begin(badblocks_list bb,
758 badblocks_iterate *ret);
759 extern int badblocks_list_iterate(badblocks_iterate iter, blk_t *blk);
760 extern void badblocks_list_iterate_end(badblocks_iterate iter);
761 extern void badblocks_list_free(badblocks_list bb);
764 extern errcode_t ext2fs_update_bb_inode(ext2_filsys fs,
765 ext2_badblocks_list bb_list);
768 extern void ext2fs_free_block_bitmap(ext2fs_block_bitmap bitmap);
769 extern void ext2fs_free_inode_bitmap(ext2fs_inode_bitmap bitmap);
770 extern errcode_t ext2fs_copy_bitmap(ext2fs_generic_bitmap src,
771 ext2fs_generic_bitmap *dest);
772 extern errcode_t ext2fs_write_inode_bitmap(ext2_filsys fs);
773 extern errcode_t ext2fs_write_block_bitmap (ext2_filsys fs);
774 extern errcode_t ext2fs_read_inode_bitmap (ext2_filsys fs);
775 extern errcode_t ext2fs_read_block_bitmap(ext2_filsys fs);
776 extern errcode_t ext2fs_allocate_block_bitmap(ext2_filsys fs,
778 ext2fs_block_bitmap *ret);
779 extern errcode_t ext2fs_allocate_subcluster_bitmap(ext2_filsys fs,
781 ext2fs_block_bitmap *ret);
782 extern int ext2fs_get_bitmap_granularity(ext2fs_block_bitmap bitmap);
783 extern errcode_t ext2fs_allocate_inode_bitmap(ext2_filsys fs,
785 ext2fs_inode_bitmap *ret);
786 extern errcode_t ext2fs_fudge_inode_bitmap_end(ext2fs_inode_bitmap bitmap,
787 ext2_ino_t end, ext2_ino_t *oend);
788 extern errcode_t ext2fs_fudge_block_bitmap_end(ext2fs_block_bitmap bitmap,
789 blk_t end, blk_t *oend);
790 extern errcode_t ext2fs_fudge_block_bitmap_end2(ext2fs_block_bitmap bitmap,
791 blk64_t end, blk64_t *oend);
792 extern void ext2fs_clear_inode_bitmap(ext2fs_inode_bitmap bitmap);
793 extern void ext2fs_clear_block_bitmap(ext2fs_block_bitmap bitmap);
794 extern errcode_t ext2fs_read_bitmaps(ext2_filsys fs);
795 extern errcode_t ext2fs_write_bitmaps(ext2_filsys fs);
796 extern errcode_t ext2fs_resize_inode_bitmap(__u32 new_end, __u32 new_real_end,
797 ext2fs_inode_bitmap bmap);
798 extern errcode_t ext2fs_resize_inode_bitmap2(__u64 new_end,
800 ext2fs_inode_bitmap bmap);
801 extern errcode_t ext2fs_resize_block_bitmap(__u32 new_end, __u32 new_real_end,
802 ext2fs_block_bitmap bmap);
803 extern errcode_t ext2fs_resize_block_bitmap2(__u64 new_end,
805 ext2fs_block_bitmap bmap);
806 extern errcode_t ext2fs_compare_block_bitmap(ext2fs_block_bitmap bm1,
807 ext2fs_block_bitmap bm2);
808 extern errcode_t ext2fs_compare_inode_bitmap(ext2fs_inode_bitmap bm1,
809 ext2fs_inode_bitmap bm2);
810 extern errcode_t ext2fs_set_inode_bitmap_range(ext2fs_inode_bitmap bmap,
811 ext2_ino_t start, unsigned int num,
813 extern errcode_t ext2fs_set_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
814 __u64 start, size_t num,
816 extern errcode_t ext2fs_get_inode_bitmap_range(ext2fs_inode_bitmap bmap,
817 ext2_ino_t start, unsigned int num,
819 extern errcode_t ext2fs_get_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
820 __u64 start, size_t num,
822 extern errcode_t ext2fs_set_block_bitmap_range(ext2fs_block_bitmap bmap,
823 blk_t start, unsigned int num,
825 extern errcode_t ext2fs_set_block_bitmap_range2(ext2fs_block_bitmap bmap,
826 blk64_t start, size_t num,
828 extern errcode_t ext2fs_get_block_bitmap_range(ext2fs_block_bitmap bmap,
829 blk_t start, unsigned int num,
831 extern errcode_t ext2fs_get_block_bitmap_range2(ext2fs_block_bitmap bmap,
832 blk64_t start, size_t num,
836 extern __u32 ext2fs_inode_bitmap_checksum(ext2_filsys fs, dgrp_t group);
837 extern __u32 ext2fs_block_bitmap_checksum(ext2_filsys fs, dgrp_t group);
838 extern dgrp_t ext2fs_group_of_blk2(ext2_filsys fs, blk64_t);
839 extern blk64_t ext2fs_group_first_block2(ext2_filsys fs, dgrp_t group);
840 extern blk64_t ext2fs_group_last_block2(ext2_filsys fs, dgrp_t group);
841 extern int ext2fs_group_blocks_count(ext2_filsys fs, dgrp_t group);
842 extern blk64_t ext2fs_inode_data_blocks2(ext2_filsys fs,
843 struct ext2_inode *inode);
844 extern blk64_t ext2fs_inode_i_blocks(ext2_filsys fs,
845 struct ext2_inode *inode);
846 extern blk64_t ext2fs_blocks_count(struct ext2_super_block *super);
847 extern void ext2fs_blocks_count_set(struct ext2_super_block *super,
849 extern void ext2fs_blocks_count_add(struct ext2_super_block *super,
851 extern blk64_t ext2fs_r_blocks_count(struct ext2_super_block *super);
852 extern void ext2fs_r_blocks_count_set(struct ext2_super_block *super,
854 extern void ext2fs_r_blocks_count_add(struct ext2_super_block *super,
856 extern blk64_t ext2fs_free_blocks_count(struct ext2_super_block *super);
857 extern void ext2fs_free_blocks_count_set(struct ext2_super_block *super,
859 extern void ext2fs_free_blocks_count_add(struct ext2_super_block *super,
861 /* Block group descriptor accessor functions */
862 extern struct ext2_group_desc *ext2fs_group_desc(ext2_filsys fs,
863 struct opaque_ext2_group_desc *gdp,
865 extern blk64_t ext2fs_block_bitmap_csum(ext2_filsys fs, dgrp_t group);
866 extern blk64_t ext2fs_block_bitmap_loc(ext2_filsys fs, dgrp_t group);
867 extern void ext2fs_block_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
869 extern __u32 ext2fs_inode_bitmap_csum(ext2_filsys fs, dgrp_t group);
870 extern blk64_t ext2fs_inode_bitmap_loc(ext2_filsys fs, dgrp_t group);
871 extern void ext2fs_inode_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
873 extern blk64_t ext2fs_inode_table_loc(ext2_filsys fs, dgrp_t group);
874 extern void ext2fs_inode_table_loc_set(ext2_filsys fs, dgrp_t group,
876 extern __u32 ext2fs_bg_free_blocks_count(ext2_filsys fs, dgrp_t group);
877 extern void ext2fs_bg_free_blocks_count_set(ext2_filsys fs, dgrp_t group,
879 extern __u32 ext2fs_bg_free_inodes_count(ext2_filsys fs, dgrp_t group);
880 extern void ext2fs_bg_free_inodes_count_set(ext2_filsys fs, dgrp_t group,
882 extern __u32 ext2fs_bg_used_dirs_count(ext2_filsys fs, dgrp_t group);
883 extern void ext2fs_bg_used_dirs_count_set(ext2_filsys fs, dgrp_t group,
885 extern __u32 ext2fs_bg_itable_unused(ext2_filsys fs, dgrp_t group);
886 extern void ext2fs_bg_itable_unused_set(ext2_filsys fs, dgrp_t group,
888 extern __u16 ext2fs_bg_flags(ext2_filsys fs, dgrp_t group);
889 extern void ext2fs_bg_flags_zap(ext2_filsys fs, dgrp_t group);
890 extern int ext2fs_bg_flags_test(ext2_filsys fs, dgrp_t group, __u16 bg_flag);
891 extern void ext2fs_bg_flags_set(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
892 extern void ext2fs_bg_flags_clear(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
893 extern __u16 ext2fs_bg_checksum(ext2_filsys fs, dgrp_t group);
894 extern void ext2fs_bg_checksum_set(ext2_filsys fs, dgrp_t group, __u16 checksum);
895 extern blk64_t ext2fs_file_acl_block(ext2_filsys fs,
896 const struct ext2_inode *inode);
897 extern void ext2fs_file_acl_block_set(ext2_filsys fs,
898 struct ext2_inode *inode, blk64_t blk);
899 extern errcode_t ext2fs_inode_size_set(ext2_filsys fs, struct ext2_inode *inode,
903 extern errcode_t ext2fs_block_iterate(ext2_filsys fs,
907 int (*func)(ext2_filsys fs,
912 errcode_t ext2fs_block_iterate2(ext2_filsys fs,
916 int (*func)(ext2_filsys fs,
918 e2_blkcnt_t blockcnt,
923 errcode_t ext2fs_block_iterate3(ext2_filsys fs,
927 int (*func)(ext2_filsys fs,
929 e2_blkcnt_t blockcnt,
936 extern errcode_t ext2fs_bmap(ext2_filsys fs, ext2_ino_t ino,
937 struct ext2_inode *inode,
938 char *block_buf, int bmap_flags,
939 blk_t block, blk_t *phys_blk);
940 extern errcode_t ext2fs_bmap2(ext2_filsys fs, ext2_ino_t ino,
941 struct ext2_inode *inode,
942 char *block_buf, int bmap_flags, blk64_t block,
943 int *ret_flags, blk64_t *phys_blk);
944 errcode_t ext2fs_map_cluster_block(ext2_filsys fs, ext2_ino_t ino,
945 struct ext2_inode *inode, blk64_t lblk,
950 extern errcode_t ext2fs_move_blocks(ext2_filsys fs,
951 ext2fs_block_bitmap reserve,
952 ext2fs_block_bitmap alloc_map,
957 extern errcode_t ext2fs_check_desc(ext2_filsys fs);
960 extern errcode_t ext2fs_close(ext2_filsys fs);
961 extern errcode_t ext2fs_close2(ext2_filsys fs, int flags);
962 extern errcode_t ext2fs_close_free(ext2_filsys *fs);
963 extern errcode_t ext2fs_flush(ext2_filsys fs);
964 extern errcode_t ext2fs_flush2(ext2_filsys fs, int flags);
965 extern int ext2fs_bg_has_super(ext2_filsys fs, dgrp_t group_block);
966 extern errcode_t ext2fs_super_and_bgd_loc2(ext2_filsys fs,
968 blk64_t *ret_super_blk,
969 blk64_t *ret_old_desc_blk,
970 blk64_t *ret_new_desc_blk,
971 blk_t *ret_used_blks);
972 extern int ext2fs_super_and_bgd_loc(ext2_filsys fs,
974 blk_t *ret_super_blk,
975 blk_t *ret_old_desc_blk,
976 blk_t *ret_new_desc_blk,
978 extern void ext2fs_update_dynamic_rev(ext2_filsys fs);
981 extern __u32 ext2fs_crc32_be(__u32 crc, unsigned char const *p, size_t len);
982 extern __u32 ext2fs_crc32c_le(__u32 crc, unsigned char const *p, size_t len);
985 extern errcode_t ext2fs_mmp_csum_set(ext2_filsys fs, struct mmp_struct *mmp);
986 extern int ext2fs_mmp_csum_verify(ext2_filsys, struct mmp_struct *mmp);
987 extern int ext2fs_verify_csum_type(ext2_filsys fs, struct ext2_super_block *sb);
988 extern errcode_t ext2fs_superblock_csum_set(ext2_filsys fs,
989 struct ext2_super_block *sb);
990 extern int ext2fs_superblock_csum_verify(ext2_filsys fs,
991 struct ext2_super_block *sb);
992 extern errcode_t ext2fs_ext_attr_block_csum_set(ext2_filsys fs,
993 ext2_ino_t inum, blk64_t block,
994 struct ext2_ext_attr_header *hdr);
995 extern int ext2fs_ext_attr_block_csum_verify(ext2_filsys fs, ext2_ino_t inum,
997 struct ext2_ext_attr_header *hdr);
998 #define EXT2_DIRENT_TAIL(block, blocksize) \
999 ((struct ext2_dir_entry_tail *)(((char *)(block)) + \
1000 (blocksize) - sizeof(struct ext2_dir_entry_tail)))
1002 extern void ext2fs_initialize_dirent_tail(ext2_filsys fs,
1003 struct ext2_dir_entry_tail *t);
1004 extern int ext2fs_dirent_has_tail(ext2_filsys fs,
1005 struct ext2_dir_entry *dirent);
1006 extern int ext2fs_dirent_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1007 struct ext2_dir_entry *dirent);
1008 extern int ext2fs_dir_block_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1009 struct ext2_dir_entry *dirent);
1010 extern errcode_t ext2fs_dir_block_csum_set(ext2_filsys fs, ext2_ino_t inum,
1011 struct ext2_dir_entry *dirent);
1012 extern errcode_t ext2fs_get_dx_countlimit(ext2_filsys fs,
1013 struct ext2_dir_entry *dirent,
1014 struct ext2_dx_countlimit **cc,
1016 extern errcode_t ext2fs_extent_block_csum_set(ext2_filsys fs,
1018 struct ext3_extent_header *eh);
1019 extern int ext2fs_extent_block_csum_verify(ext2_filsys fs,
1021 struct ext3_extent_header *eh);
1022 extern errcode_t ext2fs_block_bitmap_csum_set(ext2_filsys fs, dgrp_t group,
1023 char *bitmap, int size);
1024 extern int ext2fs_block_bitmap_csum_verify(ext2_filsys fs, dgrp_t group,
1025 char *bitmap, int size);
1026 extern errcode_t ext2fs_inode_bitmap_csum_set(ext2_filsys fs, dgrp_t group,
1027 char *bitmap, int size);
1028 extern int ext2fs_inode_bitmap_csum_verify(ext2_filsys fs, dgrp_t group,
1029 char *bitmap, int size);
1030 extern errcode_t ext2fs_inode_csum_set(ext2_filsys fs, ext2_ino_t inum,
1031 struct ext2_inode_large *inode);
1032 extern int ext2fs_inode_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1033 struct ext2_inode_large *inode);
1034 extern void ext2fs_group_desc_csum_set(ext2_filsys fs, dgrp_t group);
1035 extern int ext2fs_group_desc_csum_verify(ext2_filsys fs, dgrp_t group);
1036 extern errcode_t ext2fs_set_gdt_csum(ext2_filsys fs);
1037 extern __u16 ext2fs_group_desc_csum(ext2_filsys fs, dgrp_t group);
1040 extern errcode_t ext2fs_init_dblist(ext2_filsys fs, ext2_dblist *ret_dblist);
1041 extern errcode_t ext2fs_add_dir_block(ext2_dblist dblist, ext2_ino_t ino,
1042 blk_t blk, int blockcnt);
1043 extern errcode_t ext2fs_add_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
1044 blk64_t blk, e2_blkcnt_t blockcnt);
1045 extern void ext2fs_dblist_sort(ext2_dblist dblist,
1046 EXT2_QSORT_TYPE (*sortfunc)(const void *,
1048 extern void ext2fs_dblist_sort2(ext2_dblist dblist,
1049 EXT2_QSORT_TYPE (*sortfunc)(const void *,
1051 extern errcode_t ext2fs_dblist_iterate(ext2_dblist dblist,
1052 int (*func)(ext2_filsys fs, struct ext2_db_entry *db_info,
1055 extern errcode_t ext2fs_dblist_iterate2(ext2_dblist dblist,
1056 int (*func)(ext2_filsys fs, struct ext2_db_entry2 *db_info,
1059 extern errcode_t ext2fs_set_dir_block(ext2_dblist dblist, ext2_ino_t ino,
1060 blk_t blk, int blockcnt);
1061 extern errcode_t ext2fs_set_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
1062 blk64_t blk, e2_blkcnt_t blockcnt);
1063 extern errcode_t ext2fs_copy_dblist(ext2_dblist src,
1065 extern int ext2fs_dblist_count(ext2_dblist dblist);
1066 extern blk64_t ext2fs_dblist_count2(ext2_dblist dblist);
1067 extern errcode_t ext2fs_dblist_get_last(ext2_dblist dblist,
1068 struct ext2_db_entry **entry);
1069 extern errcode_t ext2fs_dblist_get_last2(ext2_dblist dblist,
1070 struct ext2_db_entry2 **entry);
1071 extern errcode_t ext2fs_dblist_drop_last(ext2_dblist dblist);
1075 ext2fs_dblist_dir_iterate(ext2_dblist dblist,
1078 int (*func)(ext2_ino_t dir,
1080 struct ext2_dir_entry *dirent,
1088 extern errcode_t ext2fs_read_dir_block(ext2_filsys fs, blk_t block,
1090 extern errcode_t ext2fs_read_dir_block2(ext2_filsys fs, blk_t block,
1091 void *buf, int flags);
1092 extern errcode_t ext2fs_read_dir_block3(ext2_filsys fs, blk64_t block,
1093 void *buf, int flags);
1094 extern errcode_t ext2fs_read_dir_block4(ext2_filsys fs, blk64_t block,
1095 void *buf, int flags, ext2_ino_t ino);
1096 extern errcode_t ext2fs_write_dir_block(ext2_filsys fs, blk_t block,
1098 extern errcode_t ext2fs_write_dir_block2(ext2_filsys fs, blk_t block,
1099 void *buf, int flags);
1100 extern errcode_t ext2fs_write_dir_block3(ext2_filsys fs, blk64_t block,
1101 void *buf, int flags);
1102 extern errcode_t ext2fs_write_dir_block4(ext2_filsys fs, blk64_t block,
1103 void *buf, int flags, ext2_ino_t ino);
1106 extern errcode_t ext2fs_dirhash(int version, const char *name, int len,
1108 ext2_dirhash_t *ret_hash,
1109 ext2_dirhash_t *ret_minor_hash);
1113 extern errcode_t ext2fs_get_rec_len(ext2_filsys fs,
1114 struct ext2_dir_entry *dirent,
1115 unsigned int *rec_len);
1116 extern errcode_t ext2fs_set_rec_len(ext2_filsys fs,
1118 struct ext2_dir_entry *dirent);
1119 extern errcode_t ext2fs_dir_iterate(ext2_filsys fs,
1123 int (*func)(struct ext2_dir_entry *dirent,
1129 extern errcode_t ext2fs_dir_iterate2(ext2_filsys fs,
1133 int (*func)(ext2_ino_t dir,
1135 struct ext2_dir_entry *dirent,
1143 extern errcode_t ext2fs_dup_handle(ext2_filsys src, ext2_filsys *dest);
1146 extern errcode_t ext2fs_expand_dir(ext2_filsys fs, ext2_ino_t dir);
1149 extern __u32 ext2fs_ext_attr_hash_entry(struct ext2_ext_attr_entry *entry,
1151 extern errcode_t ext2fs_read_ext_attr(ext2_filsys fs, blk_t block, void *buf);
1152 extern errcode_t ext2fs_read_ext_attr2(ext2_filsys fs, blk64_t block,
1154 extern errcode_t ext2fs_read_ext_attr3(ext2_filsys fs, blk64_t block,
1155 void *buf, ext2_ino_t inum);
1156 extern errcode_t ext2fs_write_ext_attr(ext2_filsys fs, blk_t block,
1158 extern errcode_t ext2fs_write_ext_attr2(ext2_filsys fs, blk64_t block,
1160 extern errcode_t ext2fs_write_ext_attr3(ext2_filsys fs, blk64_t block,
1161 void *buf, ext2_ino_t inum);
1162 extern errcode_t ext2fs_adjust_ea_refcount(ext2_filsys fs, blk_t blk,
1164 int adjust, __u32 *newcount);
1165 extern errcode_t ext2fs_adjust_ea_refcount2(ext2_filsys fs, blk64_t blk,
1167 int adjust, __u32 *newcount);
1168 extern errcode_t ext2fs_adjust_ea_refcount3(ext2_filsys fs, blk64_t blk,
1170 int adjust, __u32 *newcount,
1172 errcode_t ext2fs_xattrs_write(struct ext2_xattr_handle *handle);
1173 errcode_t ext2fs_xattrs_read(struct ext2_xattr_handle *handle);
1174 errcode_t ext2fs_xattrs_iterate(struct ext2_xattr_handle *h,
1175 int (*func)(char *name, char *value,
1176 size_t value_len, void *data),
1178 errcode_t ext2fs_xattr_get(struct ext2_xattr_handle *h, const char *key,
1179 void **value, size_t *value_len);
1180 errcode_t ext2fs_xattr_set(struct ext2_xattr_handle *handle,
1184 errcode_t ext2fs_xattr_remove(struct ext2_xattr_handle *handle,
1186 errcode_t ext2fs_xattrs_open(ext2_filsys fs, ext2_ino_t ino,
1187 struct ext2_xattr_handle **handle);
1188 errcode_t ext2fs_xattrs_close(struct ext2_xattr_handle **handle);
1189 errcode_t ext2fs_free_ext_attr(ext2_filsys fs, ext2_ino_t ino,
1190 struct ext2_inode_large *inode);
1191 errcode_t ext2fs_xattrs_count(struct ext2_xattr_handle *handle, size_t *count);
1192 errcode_t ext2fs_xattr_inode_max_size(ext2_filsys fs, ext2_ino_t ino,
1196 extern errcode_t ext2fs_extent_header_verify(void *ptr, int size);
1197 extern errcode_t ext2fs_extent_open(ext2_filsys fs, ext2_ino_t ino,
1198 ext2_extent_handle_t *handle);
1199 extern errcode_t ext2fs_extent_open2(ext2_filsys fs, ext2_ino_t ino,
1200 struct ext2_inode *inode,
1201 ext2_extent_handle_t *ret_handle);
1202 extern void ext2fs_extent_free(ext2_extent_handle_t handle);
1203 extern errcode_t ext2fs_extent_get(ext2_extent_handle_t handle,
1204 int flags, struct ext2fs_extent *extent);
1205 extern errcode_t ext2fs_extent_node_split(ext2_extent_handle_t handle);
1206 extern errcode_t ext2fs_extent_replace(ext2_extent_handle_t handle, int flags,
1207 struct ext2fs_extent *extent);
1208 extern errcode_t ext2fs_extent_insert(ext2_extent_handle_t handle, int flags,
1209 struct ext2fs_extent *extent);
1210 extern errcode_t ext2fs_extent_set_bmap(ext2_extent_handle_t handle,
1211 blk64_t logical, blk64_t physical,
1213 extern errcode_t ext2fs_extent_delete(ext2_extent_handle_t handle, int flags);
1214 extern errcode_t ext2fs_extent_get_info(ext2_extent_handle_t handle,
1215 struct ext2_extent_info *info);
1216 extern errcode_t ext2fs_extent_goto(ext2_extent_handle_t handle,
1218 extern errcode_t ext2fs_extent_goto2(ext2_extent_handle_t handle,
1219 int leaf_level, blk64_t blk);
1220 extern errcode_t ext2fs_extent_fix_parents(ext2_extent_handle_t handle);
1223 extern errcode_t ext2fs_file_open2(ext2_filsys fs, ext2_ino_t ino,
1224 struct ext2_inode *inode,
1225 int flags, ext2_file_t *ret);
1226 extern errcode_t ext2fs_file_open(ext2_filsys fs, ext2_ino_t ino,
1227 int flags, ext2_file_t *ret);
1228 extern ext2_filsys ext2fs_file_get_fs(ext2_file_t file);
1229 struct ext2_inode *ext2fs_file_get_inode(ext2_file_t file);
1230 extern ext2_ino_t ext2fs_file_get_inode_num(ext2_file_t file);
1231 extern errcode_t ext2fs_file_close(ext2_file_t file);
1232 extern errcode_t ext2fs_file_flush(ext2_file_t file);
1233 extern errcode_t ext2fs_file_read(ext2_file_t file, void *buf,
1234 unsigned int wanted, unsigned int *got);
1235 extern errcode_t ext2fs_file_write(ext2_file_t file, const void *buf,
1236 unsigned int nbytes, unsigned int *written);
1237 extern errcode_t ext2fs_file_llseek(ext2_file_t file, __u64 offset,
1238 int whence, __u64 *ret_pos);
1239 extern errcode_t ext2fs_file_lseek(ext2_file_t file, ext2_off_t offset,
1240 int whence, ext2_off_t *ret_pos);
1241 errcode_t ext2fs_file_get_lsize(ext2_file_t file, __u64 *ret_size);
1242 extern ext2_off_t ext2fs_file_get_size(ext2_file_t file);
1243 extern errcode_t ext2fs_file_set_size(ext2_file_t file, ext2_off_t size);
1244 extern errcode_t ext2fs_file_set_size2(ext2_file_t file, ext2_off64_t size);
1247 extern char *ext2fs_find_block_device(dev_t device);
1250 extern errcode_t ext2fs_sync_device(int fd, int flushb);
1253 extern void ext2fs_free(ext2_filsys fs);
1254 extern void ext2fs_free_dblist(ext2_dblist dblist);
1255 extern void ext2fs_badblocks_list_free(ext2_badblocks_list bb);
1256 extern void ext2fs_u32_list_free(ext2_u32_list bb);
1259 extern void ext2fs_free_generic_bitmap(ext2fs_inode_bitmap bitmap);
1260 extern errcode_t ext2fs_make_generic_bitmap(errcode_t magic, ext2_filsys fs,
1261 __u32 start, __u32 end,
1263 const char *descr, char *init_map,
1264 ext2fs_generic_bitmap *ret);
1265 extern errcode_t ext2fs_allocate_generic_bitmap(__u32 start,
1269 ext2fs_generic_bitmap *ret);
1270 extern errcode_t ext2fs_copy_generic_bitmap(ext2fs_generic_bitmap src,
1271 ext2fs_generic_bitmap *dest);
1272 extern void ext2fs_clear_generic_bitmap(ext2fs_generic_bitmap bitmap);
1273 extern errcode_t ext2fs_fudge_generic_bitmap_end(ext2fs_inode_bitmap bitmap,
1278 extern void ext2fs_set_generic_bitmap_padding(ext2fs_generic_bitmap map);
1279 extern errcode_t ext2fs_resize_generic_bitmap(errcode_t magic,
1282 ext2fs_generic_bitmap bmap);
1283 extern errcode_t ext2fs_compare_generic_bitmap(errcode_t magic, errcode_t neq,
1284 ext2fs_generic_bitmap bm1,
1285 ext2fs_generic_bitmap bm2);
1286 extern errcode_t ext2fs_get_generic_bitmap_range(ext2fs_generic_bitmap bmap,
1288 __u32 start, __u32 num,
1290 extern errcode_t ext2fs_set_generic_bitmap_range(ext2fs_generic_bitmap bmap,
1292 __u32 start, __u32 num,
1294 extern errcode_t ext2fs_find_first_zero_generic_bitmap(ext2fs_generic_bitmap bitmap,
1295 __u32 start, __u32 end,
1297 extern errcode_t ext2fs_find_first_set_generic_bitmap(ext2fs_generic_bitmap bitmap,
1298 __u32 start, __u32 end,
1301 /* gen_bitmap64.c */
1302 void ext2fs_free_generic_bmap(ext2fs_generic_bitmap bmap);
1303 errcode_t ext2fs_alloc_generic_bmap(ext2_filsys fs, errcode_t magic,
1304 int type, __u64 start, __u64 end,
1307 ext2fs_generic_bitmap *ret);
1308 errcode_t ext2fs_copy_generic_bmap(ext2fs_generic_bitmap src,
1309 ext2fs_generic_bitmap *dest);
1310 void ext2fs_clear_generic_bmap(ext2fs_generic_bitmap bitmap);
1311 errcode_t ext2fs_fudge_generic_bmap_end(ext2fs_generic_bitmap bitmap,
1313 __u64 end, __u64 *oend);
1314 void ext2fs_set_generic_bmap_padding(ext2fs_generic_bitmap bmap);
1315 errcode_t ext2fs_resize_generic_bmap(ext2fs_generic_bitmap bmap,
1317 __u64 new_real_end);
1318 errcode_t ext2fs_compare_generic_bmap(errcode_t neq,
1319 ext2fs_generic_bitmap bm1,
1320 ext2fs_generic_bitmap bm2);
1321 errcode_t ext2fs_get_generic_bmap_range(ext2fs_generic_bitmap bmap,
1322 __u64 start, unsigned int num,
1324 errcode_t ext2fs_set_generic_bmap_range(ext2fs_generic_bitmap bmap,
1325 __u64 start, unsigned int num,
1327 errcode_t ext2fs_convert_subcluster_bitmap(ext2_filsys fs,
1328 ext2fs_block_bitmap *bitmap);
1330 /* get_num_dirs.c */
1331 extern errcode_t ext2fs_get_num_dirs(ext2_filsys fs, ext2_ino_t *ret_num_dirs);
1334 extern errcode_t ext2fs_get_device_size(const char *file, int blocksize,
1336 extern errcode_t ext2fs_get_device_size2(const char *file, int blocksize,
1337 blk64_t *retblocks);
1340 extern int ext2fs_get_dio_alignment(int fd);
1341 errcode_t ext2fs_get_device_sectsize(const char *file, int *sectsize);
1342 errcode_t ext2fs_get_device_phys_sectsize(const char *file, int *sectsize);
1345 errcode_t ext2fs_iblk_add_blocks(ext2_filsys fs, struct ext2_inode *inode,
1346 blk64_t num_blocks);
1347 errcode_t ext2fs_iblk_sub_blocks(ext2_filsys fs, struct ext2_inode *inode,
1348 blk64_t num_blocks);
1349 errcode_t ext2fs_iblk_set(ext2_filsys fs, struct ext2_inode *inode, blk64_t b);
1352 extern errcode_t ext2fs_image_inode_write(ext2_filsys fs, int fd, int flags);
1353 extern errcode_t ext2fs_image_inode_read(ext2_filsys fs, int fd, int flags);
1354 extern errcode_t ext2fs_image_super_write(ext2_filsys fs, int fd, int flags);
1355 extern errcode_t ext2fs_image_super_read(ext2_filsys fs, int fd, int flags);
1356 extern errcode_t ext2fs_image_bitmap_write(ext2_filsys fs, int fd, int flags);
1357 extern errcode_t ext2fs_image_bitmap_read(ext2_filsys fs, int fd, int flags);
1360 errcode_t ext2fs_read_ind_block(ext2_filsys fs, blk_t blk, void *buf);
1361 errcode_t ext2fs_write_ind_block(ext2_filsys fs, blk_t blk, void *buf);
1364 extern errcode_t ext2fs_initialize(const char *name, int flags,
1365 struct ext2_super_block *param,
1366 io_manager manager, ext2_filsys *ret_fs);
1369 extern void ext2fs_free_icount(ext2_icount_t icount);
1370 extern errcode_t ext2fs_create_icount_tdb(ext2_filsys fs, char *tdb_dir,
1371 int flags, ext2_icount_t *ret);
1372 extern errcode_t ext2fs_create_icount2(ext2_filsys fs, int flags,
1374 ext2_icount_t hint, ext2_icount_t *ret);
1375 extern errcode_t ext2fs_create_icount(ext2_filsys fs, int flags,
1377 ext2_icount_t *ret);
1378 extern errcode_t ext2fs_icount_fetch(ext2_icount_t icount, ext2_ino_t ino,
1380 extern errcode_t ext2fs_icount_increment(ext2_icount_t icount, ext2_ino_t ino,
1382 extern errcode_t ext2fs_icount_decrement(ext2_icount_t icount, ext2_ino_t ino,
1384 extern errcode_t ext2fs_icount_store(ext2_icount_t icount, ext2_ino_t ino,
1386 extern ext2_ino_t ext2fs_get_icount_size(ext2_icount_t icount);
1387 errcode_t ext2fs_icount_validate(ext2_icount_t icount, FILE *);
1391 extern errcode_t ext2fs_get_memalign(unsigned long size,
1392 unsigned long align, void *ptr);
1395 extern errcode_t ext2fs_inline_data_init(ext2_filsys fs, ext2_ino_t ino);
1396 extern errcode_t ext2fs_inline_data_size(ext2_filsys fs, ext2_ino_t ino,
1398 extern errcode_t ext2fs_inline_data_get(ext2_filsys fs, ext2_ino_t ino,
1399 struct ext2_inode *inode,
1400 void *buf, size_t *size);
1401 extern errcode_t ext2fs_inline_data_set(ext2_filsys fs, ext2_ino_t ino,
1402 struct ext2_inode *inode,
1403 void *buf, size_t size);
1406 extern errcode_t ext2fs_create_inode_cache(ext2_filsys fs,
1407 unsigned int cache_size);
1408 extern void ext2fs_free_inode_cache(struct ext2_inode_cache *icache);
1409 extern errcode_t ext2fs_flush_icache(ext2_filsys fs);
1410 extern errcode_t ext2fs_get_next_inode_full(ext2_inode_scan scan,
1412 struct ext2_inode *inode,
1414 extern errcode_t ext2fs_open_inode_scan(ext2_filsys fs, int buffer_blocks,
1415 ext2_inode_scan *ret_scan);
1416 extern void ext2fs_close_inode_scan(ext2_inode_scan scan);
1417 extern errcode_t ext2fs_get_next_inode(ext2_inode_scan scan, ext2_ino_t *ino,
1418 struct ext2_inode *inode);
1419 extern errcode_t ext2fs_inode_scan_goto_blockgroup(ext2_inode_scan scan,
1421 extern void ext2fs_set_inode_callback
1422 (ext2_inode_scan scan,
1423 errcode_t (*done_group)(ext2_filsys fs,
1424 ext2_inode_scan scan,
1427 void *done_group_data);
1428 extern int ext2fs_inode_scan_flags(ext2_inode_scan scan, int set_flags,
1430 extern errcode_t ext2fs_read_inode_full(ext2_filsys fs, ext2_ino_t ino,
1431 struct ext2_inode * inode,
1433 extern errcode_t ext2fs_read_inode (ext2_filsys fs, ext2_ino_t ino,
1434 struct ext2_inode * inode);
1435 extern errcode_t ext2fs_write_inode_full(ext2_filsys fs, ext2_ino_t ino,
1436 struct ext2_inode * inode,
1438 extern errcode_t ext2fs_write_inode(ext2_filsys fs, ext2_ino_t ino,
1439 struct ext2_inode * inode);
1440 extern errcode_t ext2fs_write_new_inode(ext2_filsys fs, ext2_ino_t ino,
1441 struct ext2_inode * inode);
1442 extern errcode_t ext2fs_get_blocks(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
1443 extern errcode_t ext2fs_check_directory(ext2_filsys fs, ext2_ino_t ino);
1446 extern io_manager inode_io_manager;
1447 extern errcode_t ext2fs_inode_io_intern(ext2_filsys fs, ext2_ino_t ino,
1449 extern errcode_t ext2fs_inode_io_intern2(ext2_filsys fs, ext2_ino_t ino,
1450 struct ext2_inode *inode,
1454 extern errcode_t ext2fs_check_if_mounted(const char *file, int *mount_flags);
1455 extern errcode_t ext2fs_check_mount_point(const char *device, int *mount_flags,
1456 char *mtpt, int mtlen);
1460 * NOTE: This function removes from an inode the blocks "start", "end", and
1461 * every block in between.
1463 extern errcode_t ext2fs_punch(ext2_filsys fs, ext2_ino_t ino,
1464 struct ext2_inode *inode,
1465 char *block_buf, blk64_t start,
1469 extern errcode_t ext2fs_lookup(ext2_filsys fs, ext2_ino_t dir, const char *name,
1470 int namelen, char *buf, ext2_ino_t *inode);
1471 extern errcode_t ext2fs_namei(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1472 const char *name, ext2_ino_t *inode);
1473 errcode_t ext2fs_namei_follow(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1474 const char *name, ext2_ino_t *inode);
1475 extern errcode_t ext2fs_follow_link(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1476 ext2_ino_t inode, ext2_ino_t *res_inode);
1479 int ext2fs_native_flag(void);
1482 extern errcode_t ext2fs_new_dir_block(ext2_filsys fs, ext2_ino_t dir_ino,
1483 ext2_ino_t parent_ino, char **block);
1484 extern errcode_t ext2fs_new_dir_inline_data(ext2_filsys fs, ext2_ino_t dir_ino,
1485 ext2_ino_t parent_ino, __u32 *iblock);
1488 extern errcode_t ext2fs_mkdir(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t inum,
1492 extern errcode_t ext2fs_zero_blocks(ext2_filsys fs, blk_t blk, int num,
1493 blk_t *ret_blk, int *ret_count);
1494 extern errcode_t ext2fs_zero_blocks2(ext2_filsys fs, blk64_t blk, int num,
1495 blk64_t *ret_blk, int *ret_count);
1496 extern errcode_t ext2fs_create_journal_superblock(ext2_filsys fs,
1497 __u32 num_blocks, int flags,
1499 extern errcode_t ext2fs_add_journal_device(ext2_filsys fs,
1500 ext2_filsys journal_dev);
1501 extern errcode_t ext2fs_add_journal_inode(ext2_filsys fs, blk_t num_blocks,
1503 extern errcode_t ext2fs_add_journal_inode2(ext2_filsys fs, blk_t num_blocks,
1504 blk64_t goal, int flags);
1505 extern int ext2fs_default_journal_size(__u64 num_blocks);
1506 extern int ext2fs_journal_sb_start(int blocksize);
1509 extern errcode_t ext2fs_open(const char *name, int flags, int superblock,
1510 unsigned int block_size, io_manager manager,
1511 ext2_filsys *ret_fs);
1512 extern errcode_t ext2fs_open2(const char *name, const char *io_options,
1513 int flags, int superblock,
1514 unsigned int block_size, io_manager manager,
1515 ext2_filsys *ret_fs);
1517 * The dgrp_t argument to these two functions is not actually a group number
1518 * but a block number offset within a group table! Convert with the formula
1519 * (group_number / groups_per_block).
1521 extern blk64_t ext2fs_descriptor_block_loc2(ext2_filsys fs,
1522 blk64_t group_block, dgrp_t i);
1523 extern blk_t ext2fs_descriptor_block_loc(ext2_filsys fs, blk_t group_block,
1525 errcode_t ext2fs_get_data_io(ext2_filsys fs, io_channel *old_io);
1526 errcode_t ext2fs_set_data_io(ext2_filsys fs, io_channel new_io);
1527 errcode_t ext2fs_rewrite_to_io(ext2_filsys fs, io_channel new_io);
1529 /* get_pathname.c */
1530 extern errcode_t ext2fs_get_pathname(ext2_filsys fs, ext2_ino_t dir, ext2_ino_t ino,
1534 errcode_t ext2fs_link(ext2_filsys fs, ext2_ino_t dir, const char *name,
1535 ext2_ino_t ino, int flags);
1536 errcode_t ext2fs_unlink(ext2_filsys fs, ext2_ino_t dir, const char *name,
1537 ext2_ino_t ino, int flags);
1540 errcode_t ext2fs_symlink(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t ino,
1541 const char *name, char *target);
1544 errcode_t ext2fs_mmp_read(ext2_filsys fs, blk64_t mmp_blk, void *buf);
1545 errcode_t ext2fs_mmp_write(ext2_filsys fs, blk64_t mmp_blk, void *buf);
1546 errcode_t ext2fs_mmp_clear(ext2_filsys fs);
1547 errcode_t ext2fs_mmp_init(ext2_filsys fs);
1548 errcode_t ext2fs_mmp_start(ext2_filsys fs);
1549 errcode_t ext2fs_mmp_update(ext2_filsys fs);
1550 errcode_t ext2fs_mmp_update2(ext2_filsys fs, int immediately);
1551 errcode_t ext2fs_mmp_stop(ext2_filsys fs);
1552 unsigned ext2fs_mmp_new_seq(void);
1555 extern errcode_t ext2fs_read_bb_inode(ext2_filsys fs,
1556 ext2_badblocks_list *bb_list);
1558 /* read_bb_file.c */
1559 extern errcode_t ext2fs_read_bb_FILE2(ext2_filsys fs, FILE *f,
1560 ext2_badblocks_list *bb_list,
1562 void (*invalid)(ext2_filsys fs,
1566 extern errcode_t ext2fs_read_bb_FILE(ext2_filsys fs, FILE *f,
1567 ext2_badblocks_list *bb_list,
1568 void (*invalid)(ext2_filsys fs,
1572 extern errcode_t ext2fs_create_resize_inode(ext2_filsys fs);
1575 extern errcode_t ext2fs_dirent_swab_in2(ext2_filsys fs, char *buf, size_t size,
1577 extern errcode_t ext2fs_dirent_swab_in(ext2_filsys fs, char *buf, int flags);
1578 extern errcode_t ext2fs_dirent_swab_out2(ext2_filsys fs, char *buf, size_t size,
1580 extern errcode_t ext2fs_dirent_swab_out(ext2_filsys fs, char *buf, int flags);
1581 extern void ext2fs_swap_ext_attr(char *to, char *from, int bufsize,
1583 extern void ext2fs_swap_ext_attr_header(struct ext2_ext_attr_header *to_header,
1584 struct ext2_ext_attr_header *from_hdr);
1585 extern void ext2fs_swap_ext_attr_entry(struct ext2_ext_attr_entry *to_entry,
1586 struct ext2_ext_attr_entry *from_entry);
1587 extern void ext2fs_swap_super(struct ext2_super_block * super);
1588 extern void ext2fs_swap_group_desc(struct ext2_group_desc *gdp);
1589 extern void ext2fs_swap_group_desc2(ext2_filsys, struct ext2_group_desc *gdp);
1590 extern void ext2fs_swap_inode_full(ext2_filsys fs, struct ext2_inode_large *t,
1591 struct ext2_inode_large *f, int hostorder,
1593 extern void ext2fs_swap_inode(ext2_filsys fs,struct ext2_inode *t,
1594 struct ext2_inode *f, int hostorder);
1595 extern void ext2fs_swap_mmp(struct mmp_struct *mmp);
1598 extern int ext2fs_open_file(const char *pathname, int flags, mode_t mode);
1599 extern int ext2fs_stat(const char *path, ext2fs_struct_stat *buf);
1600 extern int ext2fs_fstat(int fd, ext2fs_struct_stat *buf);
1603 extern int ext2fs_inode_has_valid_blocks(struct ext2_inode *inode);
1604 extern int ext2fs_inode_has_valid_blocks2(ext2_filsys fs,
1605 struct ext2_inode *inode);
1608 extern int ext2fs_parse_version_string(const char *ver_string);
1609 extern int ext2fs_get_library_version(const char **ver_string,
1610 const char **date_string);
1612 /* write_bb_file.c */
1613 extern errcode_t ext2fs_write_bb_FILE(ext2_badblocks_list bb_list,
1618 /* inline functions */
1619 #ifdef NO_INLINE_FUNCS
1620 extern void ext2fs_init_csum_seed(ext2_filsys fs);
1621 extern errcode_t ext2fs_get_mem(unsigned long size, void *ptr);
1622 extern errcode_t ext2fs_get_memzero(unsigned long size, void *ptr);
1623 extern errcode_t ext2fs_get_array(unsigned long count,
1624 unsigned long size, void *ptr);
1625 extern errcode_t ext2fs_get_arrayzero(unsigned long count,
1626 unsigned long size, void *ptr);
1627 extern errcode_t ext2fs_free_mem(void *ptr);
1628 extern errcode_t ext2fs_resize_mem(unsigned long old_size,
1629 unsigned long size, void *ptr);
1630 extern void ext2fs_mark_super_dirty(ext2_filsys fs);
1631 extern void ext2fs_mark_changed(ext2_filsys fs);
1632 extern int ext2fs_test_changed(ext2_filsys fs);
1633 extern void ext2fs_mark_valid(ext2_filsys fs);
1634 extern void ext2fs_unmark_valid(ext2_filsys fs);
1635 extern int ext2fs_test_valid(ext2_filsys fs);
1636 extern void ext2fs_mark_ib_dirty(ext2_filsys fs);
1637 extern void ext2fs_mark_bb_dirty(ext2_filsys fs);
1638 extern int ext2fs_test_ib_dirty(ext2_filsys fs);
1639 extern int ext2fs_test_bb_dirty(ext2_filsys fs);
1640 extern dgrp_t ext2fs_group_of_blk(ext2_filsys fs, blk_t blk);
1641 extern dgrp_t ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino);
1642 extern blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group);
1643 extern blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group);
1644 extern blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
1645 struct ext2_inode *inode);
1646 extern unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b);
1647 extern __u64 ext2fs_div64_ceil(__u64 a, __u64 b);
1651 * The actual inlined functions definitions themselves...
1653 * If NO_INLINE_FUNCS is defined, then we won't try to do inline
1656 #if (defined(INCLUDE_INLINE_FUNCS) || !defined(NO_INLINE_FUNCS))
1657 #ifdef INCLUDE_INLINE_FUNCS
1658 #define _INLINE_ extern
1660 #if (__STDC_VERSION__ >= 199901L)
1661 #define _INLINE_ inline
1664 #define _INLINE_ extern __inline__
1665 #else /* For Watcom C */
1666 #define _INLINE_ extern inline
1667 #endif /* __GNUC__ */
1668 #endif /* __STDC_VERSION__ >= 199901L */
1671 _INLINE_ void ext2fs_init_csum_seed(ext2_filsys fs)
1673 if (!EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
1674 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
1677 fs->csum_seed = ext2fs_crc32c_le(~0, fs->super->s_uuid,
1678 sizeof(fs->super->s_uuid));
1681 #ifndef EXT2_CUSTOM_MEMORY_ROUTINES
1684 * Allocate memory. The 'ptr' arg must point to a pointer.
1686 _INLINE_ errcode_t ext2fs_get_mem(unsigned long size, void *ptr)
1692 return EXT2_ET_NO_MEMORY;
1693 memcpy(ptr, &pp, sizeof (pp));
1697 _INLINE_ errcode_t ext2fs_get_memzero(unsigned long size, void *ptr)
1703 return EXT2_ET_NO_MEMORY;
1704 memset(pp, 0, size);
1705 memcpy(ptr, &pp, sizeof(pp));
1709 _INLINE_ errcode_t ext2fs_get_array(unsigned long count, unsigned long size, void *ptr)
1711 if (count && (-1UL)/count<size)
1712 return EXT2_ET_NO_MEMORY;
1713 return ext2fs_get_mem(count*size, ptr);
1716 _INLINE_ errcode_t ext2fs_get_arrayzero(unsigned long count,
1717 unsigned long size, void *ptr)
1721 if (count && (-1UL)/count<size)
1722 return EXT2_ET_NO_MEMORY;
1723 pp = calloc(count, size);
1725 return EXT2_ET_NO_MEMORY;
1726 memcpy(ptr, &pp, sizeof(pp));
1731 * Free memory. The 'ptr' arg must point to a pointer.
1733 _INLINE_ errcode_t ext2fs_free_mem(void *ptr)
1737 memcpy(&p, ptr, sizeof(p));
1740 memcpy(ptr, &p, sizeof(p));
1745 * Resize memory. The 'ptr' arg must point to a pointer.
1747 _INLINE_ errcode_t ext2fs_resize_mem(unsigned long EXT2FS_ATTR((unused)) old_size,
1748 unsigned long size, void *ptr)
1752 /* Use "memcpy" for pointer assignments here to avoid problems
1753 * with C99 strict type aliasing rules. */
1754 memcpy(&p, ptr, sizeof(p));
1755 p = realloc(p, size);
1757 return EXT2_ET_NO_MEMORY;
1758 memcpy(ptr, &p, sizeof(p));
1761 #endif /* Custom memory routines */
1764 * Mark a filesystem superblock as dirty
1766 _INLINE_ void ext2fs_mark_super_dirty(ext2_filsys fs)
1768 fs->flags |= EXT2_FLAG_DIRTY | EXT2_FLAG_CHANGED;
1772 * Mark a filesystem as changed
1774 _INLINE_ void ext2fs_mark_changed(ext2_filsys fs)
1776 fs->flags |= EXT2_FLAG_CHANGED;
1780 * Check to see if a filesystem has changed
1782 _INLINE_ int ext2fs_test_changed(ext2_filsys fs)
1784 return (fs->flags & EXT2_FLAG_CHANGED);
1788 * Mark a filesystem as valid
1790 _INLINE_ void ext2fs_mark_valid(ext2_filsys fs)
1792 fs->flags |= EXT2_FLAG_VALID;
1796 * Mark a filesystem as NOT valid
1798 _INLINE_ void ext2fs_unmark_valid(ext2_filsys fs)
1800 fs->flags &= ~EXT2_FLAG_VALID;
1804 * Check to see if a filesystem is valid
1806 _INLINE_ int ext2fs_test_valid(ext2_filsys fs)
1808 return (fs->flags & EXT2_FLAG_VALID);
1812 * Mark the inode bitmap as dirty
1814 _INLINE_ void ext2fs_mark_ib_dirty(ext2_filsys fs)
1816 fs->flags |= EXT2_FLAG_IB_DIRTY | EXT2_FLAG_CHANGED;
1820 * Mark the block bitmap as dirty
1822 _INLINE_ void ext2fs_mark_bb_dirty(ext2_filsys fs)
1824 fs->flags |= EXT2_FLAG_BB_DIRTY | EXT2_FLAG_CHANGED;
1828 * Check to see if a filesystem's inode bitmap is dirty
1830 _INLINE_ int ext2fs_test_ib_dirty(ext2_filsys fs)
1832 return (fs->flags & EXT2_FLAG_IB_DIRTY);
1836 * Check to see if a filesystem's block bitmap is dirty
1838 _INLINE_ int ext2fs_test_bb_dirty(ext2_filsys fs)
1840 return (fs->flags & EXT2_FLAG_BB_DIRTY);
1844 * Return the group # of a block
1846 _INLINE_ dgrp_t ext2fs_group_of_blk(ext2_filsys fs, blk_t blk)
1848 return ext2fs_group_of_blk2(fs, blk);
1851 * Return the group # of an inode number
1853 _INLINE_ dgrp_t ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino)
1855 return (ino - 1) / fs->super->s_inodes_per_group;
1859 * Return the first block (inclusive) in a group
1861 _INLINE_ blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group)
1863 return (blk_t) ext2fs_group_first_block2(fs, group);
1867 * Return the last block (inclusive) in a group
1869 _INLINE_ blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group)
1871 return (blk_t) ext2fs_group_last_block2(fs, group);
1874 _INLINE_ blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
1875 struct ext2_inode *inode)
1877 return (blk_t) ext2fs_inode_data_blocks2(fs, inode);
1881 * This is an efficient, overflow safe way of calculating ceil((1.0 * a) / b)
1883 _INLINE_ unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b)
1887 return ((a - 1) / b) + 1;
1890 _INLINE_ __u64 ext2fs_div64_ceil(__u64 a, __u64 b)
1894 return ((a - 1) / b) + 1;
1897 _INLINE_ int ext2fs_dirent_name_len(const struct ext2_dir_entry *entry)
1899 return entry->name_len & 0xff;
1902 _INLINE_ void ext2fs_dirent_set_name_len(struct ext2_dir_entry *entry, int len)
1904 entry->name_len = (entry->name_len & 0xff00) | (len & 0xff);
1907 _INLINE_ int ext2fs_dirent_file_type(const struct ext2_dir_entry *entry)
1909 return entry->name_len >> 8;
1912 _INLINE_ void ext2fs_dirent_set_file_type(struct ext2_dir_entry *entry, int type)
1914 entry->name_len = (entry->name_len & 0xff) | (type << 8);
1924 #endif /* _EXT2FS_EXT2FS_H */