4 * Copyright (C) 1993, 1994, 1995, 1996 Theodore Ts'o.
7 * This file may be redistributed under the terms of the GNU Library
8 * General Public License, version 2.
12 #ifndef _EXT2FS_EXT2FS_H
13 #define _EXT2FS_EXT2FS_H
16 #define EXT2FS_ATTR(x) __attribute__(x)
18 #define EXT2FS_ATTR(x)
26 * Non-GNU C compilers won't necessarily understand inline
28 #if (!defined(__GNUC__) && !defined(__WATCOMC__))
29 #define NO_INLINE_FUNCS
33 * Where the master copy of the superblock is located, and how big
34 * superblocks are supposed to be. We define SUPERBLOCK_SIZE because
35 * the size of the superblock structure is not necessarily trustworthy
36 * (some versions have the padding set up so that the superblock is
39 #define SUPERBLOCK_OFFSET 1024
40 #define SUPERBLOCK_SIZE 1024
43 * The last ext2fs revision level that this version of the library is
46 #define EXT2_LIB_CURRENT_REV EXT2_DYNAMIC_REV
48 #ifdef HAVE_SYS_TYPES_H
49 #include <sys/types.h>
57 #if EXT2_FLAT_INCLUDES
60 #include "ext3_extents.h"
62 #include <ext2fs/ext2_types.h>
63 #include <ext2fs/ext2_fs.h>
64 #include <ext2fs/ext3_extents.h>
65 #endif /* EXT2_FLAT_INCLUDES */
67 #ifdef __CHECK_ENDIAN__
68 #define __bitwise __attribute__((bitwise))
73 typedef __u32 __bitwise ext2_ino_t;
74 typedef __u32 __bitwise blk_t;
75 typedef __u64 __bitwise blk64_t;
76 typedef __u32 __bitwise dgrp_t;
77 typedef __u32 __bitwise ext2_off_t;
78 typedef __u64 __bitwise ext2_off64_t;
79 typedef __s64 __bitwise e2_blkcnt_t;
80 typedef __u32 __bitwise ext2_dirhash_t;
82 #if EXT2_FLAT_INCLUDES
86 #include "ext2_ext_attr.h"
88 #include <et/com_err.h>
89 #include <ext2fs/ext2_io.h>
90 #include <ext2fs/ext2_err.h>
91 #include <ext2fs/ext2_ext_attr.h>
95 * Portability help for Microsoft Visual C++
98 #define EXT2_QSORT_TYPE int __cdecl
100 #define EXT2_QSORT_TYPE int
103 typedef struct struct_ext2_filsys *ext2_filsys;
105 #define EXT2FS_MARK_ERROR 0
106 #define EXT2FS_UNMARK_ERROR 1
107 #define EXT2FS_TEST_ERROR 2
109 typedef struct ext2fs_struct_generic_bitmap *ext2fs_generic_bitmap;
110 typedef struct ext2fs_struct_generic_bitmap *ext2fs_inode_bitmap;
111 typedef struct ext2fs_struct_generic_bitmap *ext2fs_block_bitmap;
113 #define EXT2_FIRST_INODE(s) EXT2_FIRST_INO(s)
117 * Badblocks list definitions
120 typedef struct ext2_struct_u32_list *ext2_badblocks_list;
121 typedef struct ext2_struct_u32_iterate *ext2_badblocks_iterate;
123 typedef struct ext2_struct_u32_list *ext2_u32_list;
124 typedef struct ext2_struct_u32_iterate *ext2_u32_iterate;
127 typedef struct ext2_struct_u32_list *badblocks_list;
128 typedef struct ext2_struct_u32_iterate *badblocks_iterate;
130 #define BADBLOCKS_FLAG_DIRTY 1
133 * ext2_dblist structure and abstractions (see dblist.c)
135 struct ext2_db_entry2 {
138 e2_blkcnt_t blockcnt;
141 /* Ye Olde 32-bit version */
142 struct ext2_db_entry {
148 typedef struct ext2_struct_dblist *ext2_dblist;
150 #define DBLIST_ABORT 1
153 * ext2_fileio definitions
156 #define EXT2_FILE_WRITE 0x0001
157 #define EXT2_FILE_CREATE 0x0002
159 #define EXT2_FILE_MASK 0x00FF
161 #define EXT2_FILE_BUF_DIRTY 0x4000
162 #define EXT2_FILE_BUF_VALID 0x2000
164 typedef struct ext2_file *ext2_file_t;
166 #define EXT2_SEEK_SET 0
167 #define EXT2_SEEK_CUR 1
168 #define EXT2_SEEK_END 2
171 * Flags for the ext2_filsys structure and for ext2fs_open()
173 #define EXT2_FLAG_RW 0x01
174 #define EXT2_FLAG_CHANGED 0x02
175 #define EXT2_FLAG_DIRTY 0x04
176 #define EXT2_FLAG_VALID 0x08
177 #define EXT2_FLAG_IB_DIRTY 0x10
178 #define EXT2_FLAG_BB_DIRTY 0x20
179 #define EXT2_FLAG_SWAP_BYTES 0x40
180 #define EXT2_FLAG_SWAP_BYTES_READ 0x80
181 #define EXT2_FLAG_SWAP_BYTES_WRITE 0x100
182 #define EXT2_FLAG_MASTER_SB_ONLY 0x200
183 #define EXT2_FLAG_FORCE 0x400
184 #define EXT2_FLAG_SUPER_ONLY 0x800
185 #define EXT2_FLAG_JOURNAL_DEV_OK 0x1000
186 #define EXT2_FLAG_IMAGE_FILE 0x2000
187 #define EXT2_FLAG_EXCLUSIVE 0x4000
188 #define EXT2_FLAG_SOFTSUPP_FEATURES 0x8000
189 #define EXT2_FLAG_NOFREE_ON_ERROR 0x10000
190 #define EXT2_FLAG_64BITS 0x20000
191 #define EXT2_FLAG_PRINT_PROGRESS 0x40000
192 #define EXT2_FLAG_DIRECT_IO 0x80000
193 #define EXT2_FLAG_SKIP_MMP 0x100000
194 #define EXT2_FLAG_IGNORE_CSUM_ERRORS 0x200000
197 * Special flag in the ext2 inode i_flag field that means that this is
198 * a new inode. (So that ext2_write_inode() can clear extra fields.)
200 #define EXT2_NEW_INODE_FL 0x80000000
203 * Flags for mkjournal
205 #define EXT2_MKJOURNAL_V1_SUPER 0x0000001 /* create V1 superblock (deprecated) */
206 #define EXT2_MKJOURNAL_LAZYINIT 0x0000002 /* don't zero journal inode before use*/
207 #define EXT2_MKJOURNAL_NO_MNT_CHECK 0x0000004 /* don't check mount status */
209 struct opaque_ext2_group_desc;
211 struct struct_ext2_filsys {
216 struct ext2_super_block * super;
217 unsigned int blocksize;
219 dgrp_t group_desc_count;
220 unsigned long desc_blocks;
221 struct opaque_ext2_group_desc * group_desc;
222 unsigned int inode_blocks_per_group;
223 ext2fs_inode_bitmap inode_map;
224 ext2fs_block_bitmap block_map;
225 /* XXX FIXME-64: not 64-bit safe, but not used? */
226 errcode_t (*get_blocks)(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
227 errcode_t (*check_directory)(ext2_filsys fs, ext2_ino_t ino);
228 errcode_t (*write_bitmaps)(ext2_filsys fs);
229 errcode_t (*read_inode)(ext2_filsys fs, ext2_ino_t ino,
230 struct ext2_inode *inode);
231 errcode_t (*write_inode)(ext2_filsys fs, ext2_ino_t ino,
232 struct ext2_inode *inode);
233 ext2_badblocks_list badblocks;
235 __u32 stride; /* for mke2fs */
236 struct ext2_super_block * orig_super;
237 struct ext2_image_hdr * image_header;
240 int cluster_ratio_bits;
241 __u16 default_bitmap_type;
244 * Reserved for future expansion
249 * Reserved for the use of the calling application.
256 struct ext2_inode_cache *icache;
260 * More callback functions
262 errcode_t (*get_alloc_block)(ext2_filsys fs, blk64_t goal,
264 void (*block_alloc_stats)(ext2_filsys fs, blk64_t blk, int inuse);
267 * Buffers for Multiple mount protection(MMP) block.
274 * Time at which e2fsck last updated the MMP block.
276 long mmp_last_written;
278 /* progress operation functions */
279 struct ext2fs_progress_ops *progress_ops;
281 /* Precomputed FS UUID checksum for seeding other checksums */
285 #if EXT2_FLAT_INCLUDES
286 #include "e2_bitops.h"
288 #include <ext2fs/bitops.h>
292 * 64-bit bitmap backend types
294 #define EXT2FS_BMAP64_BITARRAY 1
295 #define EXT2FS_BMAP64_RBTREE 2
296 #define EXT2FS_BMAP64_AUTODIR 3
299 * Return flags for the block iterator functions
301 #define BLOCK_CHANGED 1
302 #define BLOCK_ABORT 2
303 #define BLOCK_ERROR 4
306 * Block interate flags
308 * BLOCK_FLAG_APPEND, or BLOCK_FLAG_HOLE, indicates that the interator
309 * function should be called on blocks where the block number is zero.
310 * This is used by ext2fs_expand_dir() to be able to add a new block
311 * to an inode. It can also be used for programs that want to be able
312 * to deal with files that contain "holes".
314 * BLOCK_FLAG_DEPTH_TRAVERSE indicates that the iterator function for
315 * the indirect, doubly indirect, etc. blocks should be called after
316 * all of the blocks containined in the indirect blocks are processed.
317 * This is useful if you are going to be deallocating blocks from an
320 * BLOCK_FLAG_DATA_ONLY indicates that the iterator function should be
321 * called for data blocks only.
323 * BLOCK_FLAG_READ_ONLY is a promise by the caller that it will not
324 * modify returned block number.
326 * BLOCK_FLAG_NO_LARGE is for internal use only. It informs
327 * ext2fs_block_iterate2 that large files won't be accepted.
329 #define BLOCK_FLAG_APPEND 1
330 #define BLOCK_FLAG_HOLE 1
331 #define BLOCK_FLAG_DEPTH_TRAVERSE 2
332 #define BLOCK_FLAG_DATA_ONLY 4
333 #define BLOCK_FLAG_READ_ONLY 8
335 #define BLOCK_FLAG_NO_LARGE 0x1000
338 * Magic "block count" return values for the block iterator function.
340 #define BLOCK_COUNT_IND (-1)
341 #define BLOCK_COUNT_DIND (-2)
342 #define BLOCK_COUNT_TIND (-3)
343 #define BLOCK_COUNT_TRANSLATOR (-4)
347 * Flags for ext2fs_move_blocks
349 #define EXT2_BMOVE_GET_DBLIST 0x0001
350 #define EXT2_BMOVE_DEBUG 0x0002
354 * Generic (non-filesystem layout specific) extents structure
357 #define EXT2_EXTENT_FLAGS_LEAF 0x0001
358 #define EXT2_EXTENT_FLAGS_UNINIT 0x0002
359 #define EXT2_EXTENT_FLAGS_SECOND_VISIT 0x0004
361 struct ext2fs_extent {
362 blk64_t e_pblk; /* first physical block */
363 blk64_t e_lblk; /* first logical block extent covers */
364 __u32 e_len; /* number of blocks covered by extent */
365 __u32 e_flags; /* extent flags */
368 typedef struct ext2_extent_handle *ext2_extent_handle_t;
369 typedef struct ext2_extent_path *ext2_extent_path_t;
372 * Flags used by ext2fs_extent_get()
374 #define EXT2_EXTENT_CURRENT 0x0000
375 #define EXT2_EXTENT_MOVE_MASK 0x000F
376 #define EXT2_EXTENT_ROOT 0x0001
377 #define EXT2_EXTENT_LAST_LEAF 0x0002
378 #define EXT2_EXTENT_FIRST_SIB 0x0003
379 #define EXT2_EXTENT_LAST_SIB 0x0004
380 #define EXT2_EXTENT_NEXT_SIB 0x0005
381 #define EXT2_EXTENT_PREV_SIB 0x0006
382 #define EXT2_EXTENT_NEXT_LEAF 0x0007
383 #define EXT2_EXTENT_PREV_LEAF 0x0008
384 #define EXT2_EXTENT_NEXT 0x0009
385 #define EXT2_EXTENT_PREV 0x000A
386 #define EXT2_EXTENT_UP 0x000B
387 #define EXT2_EXTENT_DOWN 0x000C
388 #define EXT2_EXTENT_DOWN_AND_LAST 0x000D
391 * Flags used by ext2fs_extent_insert()
393 #define EXT2_EXTENT_INSERT_AFTER 0x0001 /* insert after handle loc'n */
394 #define EXT2_EXTENT_INSERT_NOSPLIT 0x0002 /* insert may not cause split */
397 * Flags used by ext2fs_extent_delete()
399 #define EXT2_EXTENT_DELETE_KEEP_EMPTY 0x001 /* keep node if last extnt gone */
402 * Flags used by ext2fs_extent_set_bmap()
404 #define EXT2_EXTENT_SET_BMAP_UNINIT 0x0001
407 * Data structure returned by ext2fs_extent_get_info()
409 struct ext2_extent_info {
419 __u32 max_uninit_len;
423 * Flags for directory block reading and writing functions
425 #define EXT2_DIRBLOCK_V2_STRUCT 0x0001
428 * Return flags for the directory iterator functions
430 #define DIRENT_CHANGED 1
431 #define DIRENT_ABORT 2
432 #define DIRENT_ERROR 3
435 * Directory iterator flags
438 #define DIRENT_FLAG_INCLUDE_EMPTY 1
439 #define DIRENT_FLAG_INCLUDE_REMOVED 2
440 #define DIRENT_FLAG_INCLUDE_CSUM 4
442 #define DIRENT_DOT_FILE 1
443 #define DIRENT_DOT_DOT_FILE 2
444 #define DIRENT_OTHER_FILE 3
445 #define DIRENT_DELETED_FILE 4
446 #define DIRENT_CHECKSUM 5
449 * Inode scan definitions
451 typedef struct ext2_struct_inode_scan *ext2_inode_scan;
456 #define EXT2_SF_CHK_BADBLOCKS 0x0001
457 #define EXT2_SF_BAD_INODE_BLK 0x0002
458 #define EXT2_SF_BAD_EXTRA_BYTES 0x0004
459 #define EXT2_SF_SKIP_MISSING_ITABLE 0x0008
460 #define EXT2_SF_DO_LAZY 0x0010
463 * ext2fs_check_if_mounted flags
465 #define EXT2_MF_MOUNTED 1
466 #define EXT2_MF_ISROOT 2
467 #define EXT2_MF_READONLY 4
468 #define EXT2_MF_SWAP 8
469 #define EXT2_MF_BUSY 16
472 * Ext2/linux mode flags. We define them here so that we don't need
473 * to depend on the OS's sys/stat.h, since we may be compiling on a
476 #define LINUX_S_IFMT 00170000
477 #define LINUX_S_IFSOCK 0140000
478 #define LINUX_S_IFLNK 0120000
479 #define LINUX_S_IFREG 0100000
480 #define LINUX_S_IFBLK 0060000
481 #define LINUX_S_IFDIR 0040000
482 #define LINUX_S_IFCHR 0020000
483 #define LINUX_S_IFIFO 0010000
484 #define LINUX_S_ISUID 0004000
485 #define LINUX_S_ISGID 0002000
486 #define LINUX_S_ISVTX 0001000
488 #define LINUX_S_IRWXU 00700
489 #define LINUX_S_IRUSR 00400
490 #define LINUX_S_IWUSR 00200
491 #define LINUX_S_IXUSR 00100
493 #define LINUX_S_IRWXG 00070
494 #define LINUX_S_IRGRP 00040
495 #define LINUX_S_IWGRP 00020
496 #define LINUX_S_IXGRP 00010
498 #define LINUX_S_IRWXO 00007
499 #define LINUX_S_IROTH 00004
500 #define LINUX_S_IWOTH 00002
501 #define LINUX_S_IXOTH 00001
503 #define LINUX_S_ISLNK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFLNK)
504 #define LINUX_S_ISREG(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFREG)
505 #define LINUX_S_ISDIR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFDIR)
506 #define LINUX_S_ISCHR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFCHR)
507 #define LINUX_S_ISBLK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFBLK)
508 #define LINUX_S_ISFIFO(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFIFO)
509 #define LINUX_S_ISSOCK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFSOCK)
512 * ext2 size of an inode
514 #define EXT2_I_SIZE(i) ((i)->i_size | ((__u64) (i)->i_size_high << 32))
517 * ext2_icount_t abstraction
519 #define EXT2_ICOUNT_OPT_INCREMENT 0x01
521 typedef struct ext2_icount *ext2_icount_t;
524 * Flags for ext2fs_bmap
526 #define BMAP_ALLOC 0x0001
527 #define BMAP_SET 0x0002
530 * Returned flags from ext2fs_bmap
532 #define BMAP_RET_UNINIT 0x0001
535 * Flags for imager.c functions
537 #define IMAGER_FLAG_INODEMAP 1
538 #define IMAGER_FLAG_SPARSEWRITE 2
541 * For checking structure magic numbers...
544 #define EXT2_CHECK_MAGIC(struct, code) \
545 if ((struct)->magic != (code)) return (code)
549 * For ext2 compression support
551 #define EXT2FS_COMPRESSED_BLKADDR ((blk_t) -1)
552 #define HOLE_BLKADDR(_b) ((_b) == 0 || (_b) == EXT2FS_COMPRESSED_BLKADDR)
555 * Features supported by this version of the library
557 #define EXT2_LIB_FEATURE_COMPAT_SUPP (EXT2_FEATURE_COMPAT_DIR_PREALLOC|\
558 EXT2_FEATURE_COMPAT_IMAGIC_INODES|\
559 EXT3_FEATURE_COMPAT_HAS_JOURNAL|\
560 EXT2_FEATURE_COMPAT_RESIZE_INODE|\
561 EXT2_FEATURE_COMPAT_DIR_INDEX|\
562 EXT2_FEATURE_COMPAT_EXT_ATTR)
564 /* This #ifdef is temporary until compression is fully supported */
565 #ifdef ENABLE_COMPRESSION
566 #ifndef I_KNOW_THAT_COMPRESSION_IS_EXPERIMENTAL
567 /* If the below warning bugs you, then have
568 `CPPFLAGS=-DI_KNOW_THAT_COMPRESSION_IS_EXPERIMENTAL' in your
569 environment at configure time. */
570 #warning "Compression support is experimental"
572 #define EXT2_LIB_INCOMPAT_COMPRESSION EXT2_FEATURE_INCOMPAT_COMPRESSION
574 #define EXT2_LIB_INCOMPAT_COMPRESSION (0)
578 #define EXT4_LIB_INCOMPAT_MMP EXT4_FEATURE_INCOMPAT_MMP
580 #define EXT4_LIB_INCOMPAT_MMP (0)
584 #define EXT4_LIB_RO_COMPAT_QUOTA EXT4_FEATURE_RO_COMPAT_QUOTA
586 #define EXT4_LIB_RO_COMPAT_QUOTA (0)
589 #define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\
590 EXT2_LIB_INCOMPAT_COMPRESSION|\
591 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\
592 EXT2_FEATURE_INCOMPAT_META_BG|\
593 EXT3_FEATURE_INCOMPAT_RECOVER|\
594 EXT3_FEATURE_INCOMPAT_EXTENTS|\
595 EXT4_FEATURE_INCOMPAT_FLEX_BG|\
596 EXT4_LIB_INCOMPAT_MMP|\
597 EXT4_FEATURE_INCOMPAT_64BIT)
599 #define EXT2_LIB_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|\
600 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|\
601 EXT2_FEATURE_RO_COMPAT_LARGE_FILE|\
602 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|\
603 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|\
604 EXT4_FEATURE_RO_COMPAT_GDT_CSUM|\
605 EXT4_FEATURE_RO_COMPAT_BIGALLOC|\
606 EXT4_LIB_RO_COMPAT_QUOTA|\
607 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM)
610 * These features are only allowed if EXT2_FLAG_SOFTSUPP_FEATURES is passed
613 #define EXT2_LIB_SOFTSUPP_INCOMPAT (EXT4_FEATURE_INCOMPAT_INLINE_DATA)
614 #define EXT2_LIB_SOFTSUPP_RO_COMPAT (EXT4_FEATURE_RO_COMPAT_REPLICA)
617 /* Translate a block number to a cluster number */
618 #define EXT2FS_CLUSTER_RATIO(fs) (1 << (fs)->cluster_ratio_bits)
619 #define EXT2FS_CLUSTER_MASK(fs) (EXT2FS_CLUSTER_RATIO(fs) - 1)
620 #define EXT2FS_B2C(fs, blk) ((blk) >> (fs)->cluster_ratio_bits)
621 /* Translate a cluster number to a block number */
622 #define EXT2FS_C2B(fs, cluster) ((cluster) << (fs)->cluster_ratio_bits)
623 /* Translate # of blks to # of clusters */
624 #define EXT2FS_NUM_B2C(fs, blks) (((blks) + EXT2FS_CLUSTER_MASK(fs)) >> \
625 (fs)->cluster_ratio_bits)
627 #if defined(HAVE_FSTAT64) && !defined(__OSX_AVAILABLE_BUT_DEPRECATED)
628 typedef struct stat64 ext2fs_struct_stat;
630 typedef struct stat ext2fs_struct_stat;
634 * For ext2fs_close2() and ext2fs_flush2(), this flag allows you to
635 * avoid the fsync call.
637 #define EXT2_FLAG_FLUSH_NO_SYNC 1
640 * function prototypes
642 static inline int ext2fs_has_group_desc_csum(ext2_filsys fs)
644 return EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
645 EXT4_FEATURE_RO_COMPAT_GDT_CSUM |
646 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM);
649 /* The LARGE_FILE feature should be set if we have stored files 2GB+ in size */
650 static inline int ext2fs_needs_large_file_feature(unsigned long long file_size)
652 return file_size >= 0x80000000ULL;
656 extern errcode_t ext2fs_new_inode(ext2_filsys fs, ext2_ino_t dir, int mode,
657 ext2fs_inode_bitmap map, ext2_ino_t *ret);
658 extern errcode_t ext2fs_new_block(ext2_filsys fs, blk_t goal,
659 ext2fs_block_bitmap map, blk_t *ret);
660 extern errcode_t ext2fs_new_block2(ext2_filsys fs, blk64_t goal,
661 ext2fs_block_bitmap map, blk64_t *ret);
662 extern errcode_t ext2fs_get_free_blocks(ext2_filsys fs, blk_t start,
663 blk_t finish, int num,
664 ext2fs_block_bitmap map,
666 extern errcode_t ext2fs_get_free_blocks2(ext2_filsys fs, blk64_t start,
667 blk64_t finish, int num,
668 ext2fs_block_bitmap map,
670 extern errcode_t ext2fs_alloc_block(ext2_filsys fs, blk_t goal,
671 char *block_buf, blk_t *ret);
672 extern errcode_t ext2fs_alloc_block2(ext2_filsys fs, blk64_t goal,
673 char *block_buf, blk64_t *ret);
674 extern void ext2fs_set_alloc_block_callback(ext2_filsys fs,
675 errcode_t (*func)(ext2_filsys fs,
678 errcode_t (**old)(ext2_filsys fs,
683 extern int ext2fs_reserve_super_and_bgd(ext2_filsys fs,
685 ext2fs_block_bitmap bmap);
686 extern void ext2fs_set_block_alloc_stats_callback(ext2_filsys fs,
687 void (*func)(ext2_filsys fs,
690 void (**old)(ext2_filsys fs,
695 void ext2fs_inode_alloc_stats(ext2_filsys fs, ext2_ino_t ino, int inuse);
696 void ext2fs_inode_alloc_stats2(ext2_filsys fs, ext2_ino_t ino,
697 int inuse, int isdir);
698 void ext2fs_block_alloc_stats(ext2_filsys fs, blk_t blk, int inuse);
699 void ext2fs_block_alloc_stats2(ext2_filsys fs, blk64_t blk, int inuse);
702 extern errcode_t ext2fs_allocate_tables(ext2_filsys fs);
703 extern errcode_t ext2fs_allocate_group_table(ext2_filsys fs, dgrp_t group,
704 ext2fs_block_bitmap bmap);
707 extern errcode_t ext2fs_u32_list_create(ext2_u32_list *ret, int size);
708 extern errcode_t ext2fs_u32_list_add(ext2_u32_list bb, __u32 blk);
709 extern int ext2fs_u32_list_find(ext2_u32_list bb, __u32 blk);
710 extern int ext2fs_u32_list_test(ext2_u32_list bb, blk_t blk);
711 extern errcode_t ext2fs_u32_list_iterate_begin(ext2_u32_list bb,
712 ext2_u32_iterate *ret);
713 extern int ext2fs_u32_list_iterate(ext2_u32_iterate iter, blk_t *blk);
714 extern void ext2fs_u32_list_iterate_end(ext2_u32_iterate iter);
715 extern errcode_t ext2fs_u32_copy(ext2_u32_list src, ext2_u32_list *dest);
716 extern int ext2fs_u32_list_equal(ext2_u32_list bb1, ext2_u32_list bb2);
718 extern errcode_t ext2fs_badblocks_list_create(ext2_badblocks_list *ret,
720 extern errcode_t ext2fs_badblocks_list_add(ext2_badblocks_list bb,
722 extern int ext2fs_badblocks_list_test(ext2_badblocks_list bb,
724 extern int ext2fs_u32_list_del(ext2_u32_list bb, __u32 blk);
725 extern void ext2fs_badblocks_list_del(ext2_u32_list bb, __u32 blk);
727 ext2fs_badblocks_list_iterate_begin(ext2_badblocks_list bb,
728 ext2_badblocks_iterate *ret);
729 extern int ext2fs_badblocks_list_iterate(ext2_badblocks_iterate iter,
731 extern void ext2fs_badblocks_list_iterate_end(ext2_badblocks_iterate iter);
732 extern errcode_t ext2fs_badblocks_copy(ext2_badblocks_list src,
733 ext2_badblocks_list *dest);
734 extern int ext2fs_badblocks_equal(ext2_badblocks_list bb1,
735 ext2_badblocks_list bb2);
736 extern int ext2fs_u32_list_count(ext2_u32_list bb);
739 extern errcode_t badblocks_list_create(badblocks_list *ret, int size);
740 extern errcode_t badblocks_list_add(badblocks_list bb, blk_t blk);
741 extern int badblocks_list_test(badblocks_list bb, blk_t blk);
742 extern errcode_t badblocks_list_iterate_begin(badblocks_list bb,
743 badblocks_iterate *ret);
744 extern int badblocks_list_iterate(badblocks_iterate iter, blk_t *blk);
745 extern void badblocks_list_iterate_end(badblocks_iterate iter);
746 extern void badblocks_list_free(badblocks_list bb);
749 extern errcode_t ext2fs_update_bb_inode(ext2_filsys fs,
750 ext2_badblocks_list bb_list);
753 extern void ext2fs_free_block_bitmap(ext2fs_block_bitmap bitmap);
754 extern void ext2fs_free_inode_bitmap(ext2fs_inode_bitmap bitmap);
755 extern errcode_t ext2fs_copy_bitmap(ext2fs_generic_bitmap src,
756 ext2fs_generic_bitmap *dest);
757 extern errcode_t ext2fs_write_inode_bitmap(ext2_filsys fs);
758 extern errcode_t ext2fs_write_block_bitmap (ext2_filsys fs);
759 extern errcode_t ext2fs_read_inode_bitmap (ext2_filsys fs);
760 extern errcode_t ext2fs_read_block_bitmap(ext2_filsys fs);
761 extern errcode_t ext2fs_allocate_block_bitmap(ext2_filsys fs,
763 ext2fs_block_bitmap *ret);
764 extern errcode_t ext2fs_allocate_subcluster_bitmap(ext2_filsys fs,
766 ext2fs_block_bitmap *ret);
767 extern int ext2fs_get_bitmap_granularity(ext2fs_block_bitmap bitmap);
768 extern errcode_t ext2fs_allocate_inode_bitmap(ext2_filsys fs,
770 ext2fs_inode_bitmap *ret);
771 extern errcode_t ext2fs_fudge_inode_bitmap_end(ext2fs_inode_bitmap bitmap,
772 ext2_ino_t end, ext2_ino_t *oend);
773 extern errcode_t ext2fs_fudge_block_bitmap_end(ext2fs_block_bitmap bitmap,
774 blk_t end, blk_t *oend);
775 extern errcode_t ext2fs_fudge_block_bitmap_end2(ext2fs_block_bitmap bitmap,
776 blk64_t end, blk64_t *oend);
777 extern void ext2fs_clear_inode_bitmap(ext2fs_inode_bitmap bitmap);
778 extern void ext2fs_clear_block_bitmap(ext2fs_block_bitmap bitmap);
779 extern errcode_t ext2fs_read_bitmaps(ext2_filsys fs);
780 extern errcode_t ext2fs_write_bitmaps(ext2_filsys fs);
781 extern errcode_t ext2fs_resize_inode_bitmap(__u32 new_end, __u32 new_real_end,
782 ext2fs_inode_bitmap bmap);
783 extern errcode_t ext2fs_resize_inode_bitmap2(__u64 new_end,
785 ext2fs_inode_bitmap bmap);
786 extern errcode_t ext2fs_resize_block_bitmap(__u32 new_end, __u32 new_real_end,
787 ext2fs_block_bitmap bmap);
788 extern errcode_t ext2fs_resize_block_bitmap2(__u64 new_end,
790 ext2fs_block_bitmap bmap);
791 extern errcode_t ext2fs_compare_block_bitmap(ext2fs_block_bitmap bm1,
792 ext2fs_block_bitmap bm2);
793 extern errcode_t ext2fs_compare_inode_bitmap(ext2fs_inode_bitmap bm1,
794 ext2fs_inode_bitmap bm2);
795 extern errcode_t ext2fs_set_inode_bitmap_range(ext2fs_inode_bitmap bmap,
796 ext2_ino_t start, unsigned int num,
798 extern errcode_t ext2fs_set_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
799 __u64 start, size_t num,
801 extern errcode_t ext2fs_get_inode_bitmap_range(ext2fs_inode_bitmap bmap,
802 ext2_ino_t start, unsigned int num,
804 extern errcode_t ext2fs_get_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
805 __u64 start, size_t num,
807 extern errcode_t ext2fs_set_block_bitmap_range(ext2fs_block_bitmap bmap,
808 blk_t start, unsigned int num,
810 extern errcode_t ext2fs_set_block_bitmap_range2(ext2fs_block_bitmap bmap,
811 blk64_t start, size_t num,
813 extern errcode_t ext2fs_get_block_bitmap_range(ext2fs_block_bitmap bmap,
814 blk_t start, unsigned int num,
816 extern errcode_t ext2fs_get_block_bitmap_range2(ext2fs_block_bitmap bmap,
817 blk64_t start, size_t num,
821 extern __u32 ext2fs_inode_bitmap_checksum(ext2_filsys fs, dgrp_t group);
822 extern __u32 ext2fs_block_bitmap_checksum(ext2_filsys fs, dgrp_t group);
823 extern dgrp_t ext2fs_group_of_blk2(ext2_filsys fs, blk64_t);
824 extern blk64_t ext2fs_group_first_block2(ext2_filsys fs, dgrp_t group);
825 extern blk64_t ext2fs_group_last_block2(ext2_filsys fs, dgrp_t group);
826 extern int ext2fs_group_blocks_count(ext2_filsys fs, dgrp_t group);
827 extern blk64_t ext2fs_inode_data_blocks2(ext2_filsys fs,
828 struct ext2_inode *inode);
829 extern blk64_t ext2fs_inode_i_blocks(ext2_filsys fs,
830 struct ext2_inode *inode);
831 extern blk64_t ext2fs_blocks_count(struct ext2_super_block *super);
832 extern void ext2fs_blocks_count_set(struct ext2_super_block *super,
834 extern void ext2fs_blocks_count_add(struct ext2_super_block *super,
836 extern blk64_t ext2fs_r_blocks_count(struct ext2_super_block *super);
837 extern void ext2fs_r_blocks_count_set(struct ext2_super_block *super,
839 extern void ext2fs_r_blocks_count_add(struct ext2_super_block *super,
841 extern blk64_t ext2fs_free_blocks_count(struct ext2_super_block *super);
842 extern void ext2fs_free_blocks_count_set(struct ext2_super_block *super,
844 extern void ext2fs_free_blocks_count_add(struct ext2_super_block *super,
846 /* Block group descriptor accessor functions */
847 extern struct ext2_group_desc *ext2fs_group_desc(ext2_filsys fs,
848 struct opaque_ext2_group_desc *gdp,
850 extern blk64_t ext2fs_block_bitmap_csum(ext2_filsys fs, dgrp_t group);
851 extern blk64_t ext2fs_block_bitmap_loc(ext2_filsys fs, dgrp_t group);
852 extern void ext2fs_block_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
854 extern __u32 ext2fs_inode_bitmap_csum(ext2_filsys fs, dgrp_t group);
855 extern blk64_t ext2fs_inode_bitmap_loc(ext2_filsys fs, dgrp_t group);
856 extern void ext2fs_inode_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
858 extern blk64_t ext2fs_inode_table_loc(ext2_filsys fs, dgrp_t group);
859 extern void ext2fs_inode_table_loc_set(ext2_filsys fs, dgrp_t group,
861 extern __u32 ext2fs_bg_free_blocks_count(ext2_filsys fs, dgrp_t group);
862 extern void ext2fs_bg_free_blocks_count_set(ext2_filsys fs, dgrp_t group,
864 extern __u32 ext2fs_bg_free_inodes_count(ext2_filsys fs, dgrp_t group);
865 extern void ext2fs_bg_free_inodes_count_set(ext2_filsys fs, dgrp_t group,
867 extern __u32 ext2fs_bg_used_dirs_count(ext2_filsys fs, dgrp_t group);
868 extern void ext2fs_bg_used_dirs_count_set(ext2_filsys fs, dgrp_t group,
870 extern __u32 ext2fs_bg_itable_unused(ext2_filsys fs, dgrp_t group);
871 extern void ext2fs_bg_itable_unused_set(ext2_filsys fs, dgrp_t group,
873 extern __u16 ext2fs_bg_flags(ext2_filsys fs, dgrp_t group);
874 extern void ext2fs_bg_flags_zap(ext2_filsys fs, dgrp_t group);
875 extern int ext2fs_bg_flags_test(ext2_filsys fs, dgrp_t group, __u16 bg_flag);
876 extern void ext2fs_bg_flags_set(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
877 extern void ext2fs_bg_flags_clear(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
878 extern __u16 ext2fs_bg_checksum(ext2_filsys fs, dgrp_t group);
879 extern void ext2fs_bg_checksum_set(ext2_filsys fs, dgrp_t group, __u16 checksum);
880 extern blk64_t ext2fs_file_acl_block(ext2_filsys fs,
881 const struct ext2_inode *inode);
882 extern void ext2fs_file_acl_block_set(ext2_filsys fs,
883 struct ext2_inode *inode, blk64_t blk);
886 extern errcode_t ext2fs_block_iterate(ext2_filsys fs,
890 int (*func)(ext2_filsys fs,
895 errcode_t ext2fs_block_iterate2(ext2_filsys fs,
899 int (*func)(ext2_filsys fs,
901 e2_blkcnt_t blockcnt,
906 errcode_t ext2fs_block_iterate3(ext2_filsys fs,
910 int (*func)(ext2_filsys fs,
912 e2_blkcnt_t blockcnt,
919 extern errcode_t ext2fs_bmap(ext2_filsys fs, ext2_ino_t ino,
920 struct ext2_inode *inode,
921 char *block_buf, int bmap_flags,
922 blk_t block, blk_t *phys_blk);
923 extern errcode_t ext2fs_bmap2(ext2_filsys fs, ext2_ino_t ino,
924 struct ext2_inode *inode,
925 char *block_buf, int bmap_flags, blk64_t block,
926 int *ret_flags, blk64_t *phys_blk);
930 extern errcode_t ext2fs_move_blocks(ext2_filsys fs,
931 ext2fs_block_bitmap reserve,
932 ext2fs_block_bitmap alloc_map,
937 extern errcode_t ext2fs_check_desc(ext2_filsys fs);
940 extern errcode_t ext2fs_close(ext2_filsys fs);
941 extern errcode_t ext2fs_close2(ext2_filsys fs, int flags);
942 extern errcode_t ext2fs_flush(ext2_filsys fs);
943 extern errcode_t ext2fs_flush2(ext2_filsys fs, int flags);
944 extern int ext2fs_bg_has_super(ext2_filsys fs, dgrp_t group_block);
945 extern errcode_t ext2fs_super_and_bgd_loc2(ext2_filsys fs,
947 blk64_t *ret_super_blk,
948 blk64_t *ret_old_desc_blk,
949 blk64_t *ret_new_desc_blk,
950 blk_t *ret_used_blks);
951 extern int ext2fs_super_and_bgd_loc(ext2_filsys fs,
953 blk_t *ret_super_blk,
954 blk_t *ret_old_desc_blk,
955 blk_t *ret_new_desc_blk,
957 extern void ext2fs_update_dynamic_rev(ext2_filsys fs);
960 extern __u32 ext2fs_crc32_be(__u32 crc, unsigned char const *p, size_t len);
961 extern __u32 ext2fs_crc32c_le(__u32 crc, unsigned char const *p, size_t len);
964 extern errcode_t ext2fs_mmp_csum_set(ext2_filsys fs, struct mmp_struct *mmp);
965 extern int ext2fs_mmp_csum_verify(ext2_filsys, struct mmp_struct *mmp);
966 extern int ext2fs_verify_csum_type(ext2_filsys fs, struct ext2_super_block *sb);
967 extern errcode_t ext2fs_superblock_csum_set(ext2_filsys fs,
968 struct ext2_super_block *sb);
969 extern int ext2fs_superblock_csum_verify(ext2_filsys fs,
970 struct ext2_super_block *sb);
971 extern errcode_t ext2fs_ext_attr_block_csum_set(ext2_filsys fs,
972 ext2_ino_t inum, blk64_t block,
973 struct ext2_ext_attr_header *hdr);
974 extern int ext2fs_ext_attr_block_csum_verify(ext2_filsys fs, ext2_ino_t inum,
976 struct ext2_ext_attr_header *hdr);
977 #define EXT2_DIRENT_TAIL(block, blocksize) \
978 ((struct ext2_dir_entry_tail *)(((char *)(block)) + \
979 (blocksize) - sizeof(struct ext2_dir_entry_tail)))
981 extern void ext2fs_initialize_dirent_tail(ext2_filsys fs,
982 struct ext2_dir_entry_tail *t);
983 extern int ext2fs_dirent_has_tail(ext2_filsys fs,
984 struct ext2_dir_entry *dirent);
985 extern int ext2fs_dirent_csum_verify(ext2_filsys fs, ext2_ino_t inum,
986 struct ext2_dir_entry *dirent);
987 extern int ext2fs_dir_block_csum_verify(ext2_filsys fs, ext2_ino_t inum,
988 struct ext2_dir_entry *dirent);
989 extern errcode_t ext2fs_dir_block_csum_set(ext2_filsys fs, ext2_ino_t inum,
990 struct ext2_dir_entry *dirent);
991 extern errcode_t ext2fs_get_dx_countlimit(ext2_filsys fs,
992 struct ext2_dir_entry *dirent,
993 struct ext2_dx_countlimit **cc,
995 extern errcode_t ext2fs_extent_block_csum_set(ext2_filsys fs,
997 struct ext3_extent_header *eh);
998 extern int ext2fs_extent_block_csum_verify(ext2_filsys fs,
1000 struct ext3_extent_header *eh);
1001 extern errcode_t ext2fs_block_bitmap_csum_set(ext2_filsys fs, dgrp_t group,
1002 char *bitmap, int size);
1003 extern int ext2fs_block_bitmap_csum_verify(ext2_filsys fs, dgrp_t group,
1004 char *bitmap, int size);
1005 extern errcode_t ext2fs_inode_bitmap_csum_set(ext2_filsys fs, dgrp_t group,
1006 char *bitmap, int size);
1007 extern int ext2fs_inode_bitmap_csum_verify(ext2_filsys fs, dgrp_t group,
1008 char *bitmap, int size);
1009 extern errcode_t ext2fs_inode_csum_set(ext2_filsys fs, ext2_ino_t inum,
1010 struct ext2_inode_large *inode);
1011 extern int ext2fs_inode_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1012 struct ext2_inode_large *inode);
1013 extern void ext2fs_group_desc_csum_set(ext2_filsys fs, dgrp_t group);
1014 extern int ext2fs_group_desc_csum_verify(ext2_filsys fs, dgrp_t group);
1015 extern errcode_t ext2fs_set_gdt_csum(ext2_filsys fs);
1016 extern __u16 ext2fs_group_desc_csum(ext2_filsys fs, dgrp_t group);
1019 extern errcode_t ext2fs_init_dblist(ext2_filsys fs, ext2_dblist *ret_dblist);
1020 extern errcode_t ext2fs_add_dir_block(ext2_dblist dblist, ext2_ino_t ino,
1021 blk_t blk, int blockcnt);
1022 extern errcode_t ext2fs_add_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
1023 blk64_t blk, e2_blkcnt_t blockcnt);
1024 extern void ext2fs_dblist_sort(ext2_dblist dblist,
1025 EXT2_QSORT_TYPE (*sortfunc)(const void *,
1027 extern void ext2fs_dblist_sort2(ext2_dblist dblist,
1028 EXT2_QSORT_TYPE (*sortfunc)(const void *,
1030 extern errcode_t ext2fs_dblist_iterate(ext2_dblist dblist,
1031 int (*func)(ext2_filsys fs, struct ext2_db_entry *db_info,
1034 extern errcode_t ext2fs_dblist_iterate2(ext2_dblist dblist,
1035 int (*func)(ext2_filsys fs, struct ext2_db_entry2 *db_info,
1038 extern errcode_t ext2fs_set_dir_block(ext2_dblist dblist, ext2_ino_t ino,
1039 blk_t blk, int blockcnt);
1040 extern errcode_t ext2fs_set_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
1041 blk64_t blk, e2_blkcnt_t blockcnt);
1042 extern errcode_t ext2fs_copy_dblist(ext2_dblist src,
1044 extern int ext2fs_dblist_count(ext2_dblist dblist);
1045 extern blk64_t ext2fs_dblist_count2(ext2_dblist dblist);
1046 extern errcode_t ext2fs_dblist_get_last(ext2_dblist dblist,
1047 struct ext2_db_entry **entry);
1048 extern errcode_t ext2fs_dblist_get_last2(ext2_dblist dblist,
1049 struct ext2_db_entry2 **entry);
1050 extern errcode_t ext2fs_dblist_drop_last(ext2_dblist dblist);
1054 ext2fs_dblist_dir_iterate(ext2_dblist dblist,
1057 int (*func)(ext2_ino_t dir,
1059 struct ext2_dir_entry *dirent,
1067 extern errcode_t ext2fs_read_dir_block(ext2_filsys fs, blk_t block,
1069 extern errcode_t ext2fs_read_dir_block2(ext2_filsys fs, blk_t block,
1070 void *buf, int flags);
1071 extern errcode_t ext2fs_read_dir_block3(ext2_filsys fs, blk64_t block,
1072 void *buf, int flags);
1073 extern errcode_t ext2fs_read_dir_block4(ext2_filsys fs, blk64_t block,
1074 void *buf, int flags, ext2_ino_t ino);
1075 extern errcode_t ext2fs_write_dir_block(ext2_filsys fs, blk_t block,
1077 extern errcode_t ext2fs_write_dir_block2(ext2_filsys fs, blk_t block,
1078 void *buf, int flags);
1079 extern errcode_t ext2fs_write_dir_block3(ext2_filsys fs, blk64_t block,
1080 void *buf, int flags);
1081 extern errcode_t ext2fs_write_dir_block4(ext2_filsys fs, blk64_t block,
1082 void *buf, int flags, ext2_ino_t ino);
1085 extern errcode_t ext2fs_dirhash(int version, const char *name, int len,
1087 ext2_dirhash_t *ret_hash,
1088 ext2_dirhash_t *ret_minor_hash);
1092 extern errcode_t ext2fs_get_rec_len(ext2_filsys fs,
1093 struct ext2_dir_entry *dirent,
1094 unsigned int *rec_len);
1095 extern errcode_t ext2fs_set_rec_len(ext2_filsys fs,
1097 struct ext2_dir_entry *dirent);
1098 extern errcode_t ext2fs_dir_iterate(ext2_filsys fs,
1102 int (*func)(struct ext2_dir_entry *dirent,
1108 extern errcode_t ext2fs_dir_iterate2(ext2_filsys fs,
1112 int (*func)(ext2_ino_t dir,
1114 struct ext2_dir_entry *dirent,
1122 extern errcode_t ext2fs_dup_handle(ext2_filsys src, ext2_filsys *dest);
1125 extern errcode_t ext2fs_expand_dir(ext2_filsys fs, ext2_ino_t dir);
1128 extern __u32 ext2fs_ext_attr_hash_entry(struct ext2_ext_attr_entry *entry,
1130 extern errcode_t ext2fs_read_ext_attr(ext2_filsys fs, blk_t block, void *buf);
1131 extern errcode_t ext2fs_read_ext_attr2(ext2_filsys fs, blk64_t block,
1133 extern errcode_t ext2fs_read_ext_attr3(ext2_filsys fs, blk64_t block,
1134 void *buf, ext2_ino_t inum);
1135 extern errcode_t ext2fs_write_ext_attr(ext2_filsys fs, blk_t block,
1137 extern errcode_t ext2fs_write_ext_attr2(ext2_filsys fs, blk64_t block,
1139 extern errcode_t ext2fs_write_ext_attr3(ext2_filsys fs, blk64_t block,
1140 void *buf, ext2_ino_t inum);
1141 extern errcode_t ext2fs_adjust_ea_refcount(ext2_filsys fs, blk_t blk,
1143 int adjust, __u32 *newcount);
1144 extern errcode_t ext2fs_adjust_ea_refcount2(ext2_filsys fs, blk64_t blk,
1146 int adjust, __u32 *newcount);
1147 extern errcode_t ext2fs_adjust_ea_refcount3(ext2_filsys fs, blk64_t blk,
1149 int adjust, __u32 *newcount,
1153 extern errcode_t ext2fs_extent_header_verify(void *ptr, int size);
1154 extern errcode_t ext2fs_extent_open(ext2_filsys fs, ext2_ino_t ino,
1155 ext2_extent_handle_t *handle);
1156 extern errcode_t ext2fs_extent_open2(ext2_filsys fs, ext2_ino_t ino,
1157 struct ext2_inode *inode,
1158 ext2_extent_handle_t *ret_handle);
1159 extern void ext2fs_extent_free(ext2_extent_handle_t handle);
1160 extern errcode_t ext2fs_extent_get(ext2_extent_handle_t handle,
1161 int flags, struct ext2fs_extent *extent);
1162 extern errcode_t ext2fs_extent_node_split(ext2_extent_handle_t handle);
1163 extern errcode_t ext2fs_extent_replace(ext2_extent_handle_t handle, int flags,
1164 struct ext2fs_extent *extent);
1165 extern errcode_t ext2fs_extent_insert(ext2_extent_handle_t handle, int flags,
1166 struct ext2fs_extent *extent);
1167 extern errcode_t ext2fs_extent_set_bmap(ext2_extent_handle_t handle,
1168 blk64_t logical, blk64_t physical,
1170 extern errcode_t ext2fs_extent_delete(ext2_extent_handle_t handle, int flags);
1171 extern errcode_t ext2fs_extent_get_info(ext2_extent_handle_t handle,
1172 struct ext2_extent_info *info);
1173 extern errcode_t ext2fs_extent_goto(ext2_extent_handle_t handle,
1175 extern errcode_t ext2fs_extent_goto2(ext2_extent_handle_t handle,
1176 int leaf_level, blk64_t blk);
1177 extern errcode_t ext2fs_extent_fix_parents(ext2_extent_handle_t handle);
1180 extern errcode_t ext2fs_file_open2(ext2_filsys fs, ext2_ino_t ino,
1181 struct ext2_inode *inode,
1182 int flags, ext2_file_t *ret);
1183 extern errcode_t ext2fs_file_open(ext2_filsys fs, ext2_ino_t ino,
1184 int flags, ext2_file_t *ret);
1185 extern ext2_filsys ext2fs_file_get_fs(ext2_file_t file);
1186 struct ext2_inode *ext2fs_file_get_inode(ext2_file_t file);
1187 extern ext2_ino_t ext2fs_file_get_inode_num(ext2_file_t file);
1188 extern errcode_t ext2fs_file_close(ext2_file_t file);
1189 extern errcode_t ext2fs_file_flush(ext2_file_t file);
1190 extern errcode_t ext2fs_file_read(ext2_file_t file, void *buf,
1191 unsigned int wanted, unsigned int *got);
1192 extern errcode_t ext2fs_file_write(ext2_file_t file, const void *buf,
1193 unsigned int nbytes, unsigned int *written);
1194 extern errcode_t ext2fs_file_llseek(ext2_file_t file, __u64 offset,
1195 int whence, __u64 *ret_pos);
1196 extern errcode_t ext2fs_file_lseek(ext2_file_t file, ext2_off_t offset,
1197 int whence, ext2_off_t *ret_pos);
1198 errcode_t ext2fs_file_get_lsize(ext2_file_t file, __u64 *ret_size);
1199 extern ext2_off_t ext2fs_file_get_size(ext2_file_t file);
1200 extern errcode_t ext2fs_file_set_size(ext2_file_t file, ext2_off_t size);
1201 extern errcode_t ext2fs_file_set_size2(ext2_file_t file, ext2_off64_t size);
1204 extern char *ext2fs_find_block_device(dev_t device);
1207 extern errcode_t ext2fs_sync_device(int fd, int flushb);
1210 extern void ext2fs_free(ext2_filsys fs);
1211 extern void ext2fs_free_dblist(ext2_dblist dblist);
1212 extern void ext2fs_badblocks_list_free(ext2_badblocks_list bb);
1213 extern void ext2fs_u32_list_free(ext2_u32_list bb);
1216 extern void ext2fs_free_generic_bitmap(ext2fs_inode_bitmap bitmap);
1217 extern errcode_t ext2fs_make_generic_bitmap(errcode_t magic, ext2_filsys fs,
1218 __u32 start, __u32 end,
1220 const char *descr, char *init_map,
1221 ext2fs_generic_bitmap *ret);
1222 extern errcode_t ext2fs_allocate_generic_bitmap(__u32 start,
1226 ext2fs_generic_bitmap *ret);
1227 extern errcode_t ext2fs_copy_generic_bitmap(ext2fs_generic_bitmap src,
1228 ext2fs_generic_bitmap *dest);
1229 extern void ext2fs_clear_generic_bitmap(ext2fs_generic_bitmap bitmap);
1230 extern errcode_t ext2fs_fudge_generic_bitmap_end(ext2fs_inode_bitmap bitmap,
1235 extern void ext2fs_set_generic_bitmap_padding(ext2fs_generic_bitmap map);
1236 extern errcode_t ext2fs_resize_generic_bitmap(errcode_t magic,
1239 ext2fs_generic_bitmap bmap);
1240 extern errcode_t ext2fs_compare_generic_bitmap(errcode_t magic, errcode_t neq,
1241 ext2fs_generic_bitmap bm1,
1242 ext2fs_generic_bitmap bm2);
1243 extern errcode_t ext2fs_get_generic_bitmap_range(ext2fs_generic_bitmap bmap,
1245 __u32 start, __u32 num,
1247 extern errcode_t ext2fs_set_generic_bitmap_range(ext2fs_generic_bitmap bmap,
1249 __u32 start, __u32 num,
1251 extern errcode_t ext2fs_find_first_zero_generic_bitmap(ext2fs_generic_bitmap bitmap,
1252 __u32 start, __u32 end,
1255 /* gen_bitmap64.c */
1256 void ext2fs_free_generic_bmap(ext2fs_generic_bitmap bmap);
1257 errcode_t ext2fs_alloc_generic_bmap(ext2_filsys fs, errcode_t magic,
1258 int type, __u64 start, __u64 end,
1261 ext2fs_generic_bitmap *ret);
1262 errcode_t ext2fs_copy_generic_bmap(ext2fs_generic_bitmap src,
1263 ext2fs_generic_bitmap *dest);
1264 void ext2fs_clear_generic_bmap(ext2fs_generic_bitmap bitmap);
1265 errcode_t ext2fs_fudge_generic_bmap_end(ext2fs_generic_bitmap bitmap,
1267 __u64 end, __u64 *oend);
1268 void ext2fs_set_generic_bmap_padding(ext2fs_generic_bitmap bmap);
1269 errcode_t ext2fs_resize_generic_bmap(ext2fs_generic_bitmap bmap,
1271 __u64 new_real_end);
1272 errcode_t ext2fs_compare_generic_bmap(errcode_t neq,
1273 ext2fs_generic_bitmap bm1,
1274 ext2fs_generic_bitmap bm2);
1275 errcode_t ext2fs_get_generic_bmap_range(ext2fs_generic_bitmap bmap,
1276 __u64 start, unsigned int num,
1278 errcode_t ext2fs_set_generic_bmap_range(ext2fs_generic_bitmap bmap,
1279 __u64 start, unsigned int num,
1281 errcode_t ext2fs_convert_subcluster_bitmap(ext2_filsys fs,
1282 ext2fs_block_bitmap *bitmap);
1284 /* get_num_dirs.c */
1285 extern errcode_t ext2fs_get_num_dirs(ext2_filsys fs, ext2_ino_t *ret_num_dirs);
1288 extern errcode_t ext2fs_get_device_size(const char *file, int blocksize,
1290 extern errcode_t ext2fs_get_device_size2(const char *file, int blocksize,
1291 blk64_t *retblocks);
1294 extern int ext2fs_get_dio_alignment(int fd);
1295 errcode_t ext2fs_get_device_sectsize(const char *file, int *sectsize);
1296 errcode_t ext2fs_get_device_phys_sectsize(const char *file, int *sectsize);
1299 errcode_t ext2fs_iblk_add_blocks(ext2_filsys fs, struct ext2_inode *inode,
1300 blk64_t num_blocks);
1301 errcode_t ext2fs_iblk_sub_blocks(ext2_filsys fs, struct ext2_inode *inode,
1302 blk64_t num_blocks);
1303 errcode_t ext2fs_iblk_set(ext2_filsys fs, struct ext2_inode *inode, blk64_t b);
1306 extern errcode_t ext2fs_image_inode_write(ext2_filsys fs, int fd, int flags);
1307 extern errcode_t ext2fs_image_inode_read(ext2_filsys fs, int fd, int flags);
1308 extern errcode_t ext2fs_image_super_write(ext2_filsys fs, int fd, int flags);
1309 extern errcode_t ext2fs_image_super_read(ext2_filsys fs, int fd, int flags);
1310 extern errcode_t ext2fs_image_bitmap_write(ext2_filsys fs, int fd, int flags);
1311 extern errcode_t ext2fs_image_bitmap_read(ext2_filsys fs, int fd, int flags);
1314 errcode_t ext2fs_read_ind_block(ext2_filsys fs, blk_t blk, void *buf);
1315 errcode_t ext2fs_write_ind_block(ext2_filsys fs, blk_t blk, void *buf);
1318 extern errcode_t ext2fs_initialize(const char *name, int flags,
1319 struct ext2_super_block *param,
1320 io_manager manager, ext2_filsys *ret_fs);
1323 extern void ext2fs_free_icount(ext2_icount_t icount);
1324 extern errcode_t ext2fs_create_icount_tdb(ext2_filsys fs, char *tdb_dir,
1325 int flags, ext2_icount_t *ret);
1326 extern errcode_t ext2fs_create_icount2(ext2_filsys fs, int flags,
1328 ext2_icount_t hint, ext2_icount_t *ret);
1329 extern errcode_t ext2fs_create_icount(ext2_filsys fs, int flags,
1331 ext2_icount_t *ret);
1332 extern errcode_t ext2fs_icount_fetch(ext2_icount_t icount, ext2_ino_t ino,
1334 extern errcode_t ext2fs_icount_increment(ext2_icount_t icount, ext2_ino_t ino,
1336 extern errcode_t ext2fs_icount_decrement(ext2_icount_t icount, ext2_ino_t ino,
1338 extern errcode_t ext2fs_icount_store(ext2_icount_t icount, ext2_ino_t ino,
1340 extern ext2_ino_t ext2fs_get_icount_size(ext2_icount_t icount);
1341 errcode_t ext2fs_icount_validate(ext2_icount_t icount, FILE *);
1345 extern errcode_t ext2fs_get_memalign(unsigned long size,
1346 unsigned long align, void *ptr);
1349 extern void ext2fs_free_inode_cache(struct ext2_inode_cache *icache);
1350 extern errcode_t ext2fs_flush_icache(ext2_filsys fs);
1351 extern errcode_t ext2fs_get_next_inode_full(ext2_inode_scan scan,
1353 struct ext2_inode *inode,
1355 extern errcode_t ext2fs_open_inode_scan(ext2_filsys fs, int buffer_blocks,
1356 ext2_inode_scan *ret_scan);
1357 extern void ext2fs_close_inode_scan(ext2_inode_scan scan);
1358 extern errcode_t ext2fs_get_next_inode(ext2_inode_scan scan, ext2_ino_t *ino,
1359 struct ext2_inode *inode);
1360 extern errcode_t ext2fs_inode_scan_goto_blockgroup(ext2_inode_scan scan,
1362 extern void ext2fs_set_inode_callback
1363 (ext2_inode_scan scan,
1364 errcode_t (*done_group)(ext2_filsys fs,
1365 ext2_inode_scan scan,
1368 void *done_group_data);
1369 extern int ext2fs_inode_scan_flags(ext2_inode_scan scan, int set_flags,
1371 extern errcode_t ext2fs_read_inode_full(ext2_filsys fs, ext2_ino_t ino,
1372 struct ext2_inode * inode,
1374 extern errcode_t ext2fs_read_inode (ext2_filsys fs, ext2_ino_t ino,
1375 struct ext2_inode * inode);
1376 extern errcode_t ext2fs_write_inode_full(ext2_filsys fs, ext2_ino_t ino,
1377 struct ext2_inode * inode,
1379 extern errcode_t ext2fs_write_inode(ext2_filsys fs, ext2_ino_t ino,
1380 struct ext2_inode * inode);
1381 extern errcode_t ext2fs_write_new_inode(ext2_filsys fs, ext2_ino_t ino,
1382 struct ext2_inode * inode);
1383 extern errcode_t ext2fs_get_blocks(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
1384 extern errcode_t ext2fs_check_directory(ext2_filsys fs, ext2_ino_t ino);
1387 extern io_manager inode_io_manager;
1388 extern errcode_t ext2fs_inode_io_intern(ext2_filsys fs, ext2_ino_t ino,
1390 extern errcode_t ext2fs_inode_io_intern2(ext2_filsys fs, ext2_ino_t ino,
1391 struct ext2_inode *inode,
1395 extern errcode_t ext2fs_check_if_mounted(const char *file, int *mount_flags);
1396 extern errcode_t ext2fs_check_mount_point(const char *device, int *mount_flags,
1397 char *mtpt, int mtlen);
1401 * NOTE: This function removes from an inode the blocks "start", "end", and
1402 * every block in between.
1404 extern errcode_t ext2fs_punch(ext2_filsys fs, ext2_ino_t ino,
1405 struct ext2_inode *inode,
1406 char *block_buf, blk64_t start,
1410 extern errcode_t ext2fs_lookup(ext2_filsys fs, ext2_ino_t dir, const char *name,
1411 int namelen, char *buf, ext2_ino_t *inode);
1412 extern errcode_t ext2fs_namei(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1413 const char *name, ext2_ino_t *inode);
1414 errcode_t ext2fs_namei_follow(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1415 const char *name, ext2_ino_t *inode);
1416 extern errcode_t ext2fs_follow_link(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1417 ext2_ino_t inode, ext2_ino_t *res_inode);
1420 int ext2fs_native_flag(void);
1423 extern errcode_t ext2fs_new_dir_block(ext2_filsys fs, ext2_ino_t dir_ino,
1424 ext2_ino_t parent_ino, char **block);
1427 extern errcode_t ext2fs_mkdir(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t inum,
1431 extern errcode_t ext2fs_zero_blocks(ext2_filsys fs, blk_t blk, int num,
1432 blk_t *ret_blk, int *ret_count);
1433 extern errcode_t ext2fs_zero_blocks2(ext2_filsys fs, blk64_t blk, int num,
1434 blk64_t *ret_blk, int *ret_count);
1435 extern errcode_t ext2fs_create_journal_superblock(ext2_filsys fs,
1436 __u32 num_blocks, int flags,
1438 extern errcode_t ext2fs_add_journal_device(ext2_filsys fs,
1439 ext2_filsys journal_dev);
1440 extern errcode_t ext2fs_add_journal_inode(ext2_filsys fs, blk_t num_blocks,
1442 extern int ext2fs_default_journal_size(__u64 num_blocks);
1445 extern errcode_t ext2fs_open(const char *name, int flags, int superblock,
1446 unsigned int block_size, io_manager manager,
1447 ext2_filsys *ret_fs);
1448 extern errcode_t ext2fs_open2(const char *name, const char *io_options,
1449 int flags, int superblock,
1450 unsigned int block_size, io_manager manager,
1451 ext2_filsys *ret_fs);
1452 extern blk64_t ext2fs_descriptor_block_loc2(ext2_filsys fs,
1453 blk64_t group_block, dgrp_t i);
1454 extern blk_t ext2fs_descriptor_block_loc(ext2_filsys fs, blk_t group_block,
1456 errcode_t ext2fs_get_data_io(ext2_filsys fs, io_channel *old_io);
1457 errcode_t ext2fs_set_data_io(ext2_filsys fs, io_channel new_io);
1458 errcode_t ext2fs_rewrite_to_io(ext2_filsys fs, io_channel new_io);
1460 /* get_pathname.c */
1461 extern errcode_t ext2fs_get_pathname(ext2_filsys fs, ext2_ino_t dir, ext2_ino_t ino,
1465 errcode_t ext2fs_link(ext2_filsys fs, ext2_ino_t dir, const char *name,
1466 ext2_ino_t ino, int flags);
1467 errcode_t ext2fs_unlink(ext2_filsys fs, ext2_ino_t dir, const char *name,
1468 ext2_ino_t ino, int flags);
1471 errcode_t ext2fs_symlink(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t ino,
1472 const char *name, char *target);
1475 errcode_t ext2fs_mmp_read(ext2_filsys fs, blk64_t mmp_blk, void *buf);
1476 errcode_t ext2fs_mmp_write(ext2_filsys fs, blk64_t mmp_blk, void *buf);
1477 errcode_t ext2fs_mmp_clear(ext2_filsys fs);
1478 errcode_t ext2fs_mmp_init(ext2_filsys fs);
1479 errcode_t ext2fs_mmp_start(ext2_filsys fs);
1480 errcode_t ext2fs_mmp_update(ext2_filsys fs);
1481 errcode_t ext2fs_mmp_update2(ext2_filsys fs, int immediately);
1482 errcode_t ext2fs_mmp_stop(ext2_filsys fs);
1483 unsigned ext2fs_mmp_new_seq(void);
1486 extern errcode_t ext2fs_read_bb_inode(ext2_filsys fs,
1487 ext2_badblocks_list *bb_list);
1489 /* read_bb_file.c */
1490 extern errcode_t ext2fs_read_bb_FILE2(ext2_filsys fs, FILE *f,
1491 ext2_badblocks_list *bb_list,
1493 void (*invalid)(ext2_filsys fs,
1497 extern errcode_t ext2fs_read_bb_FILE(ext2_filsys fs, FILE *f,
1498 ext2_badblocks_list *bb_list,
1499 void (*invalid)(ext2_filsys fs,
1503 extern errcode_t ext2fs_create_resize_inode(ext2_filsys fs);
1506 extern errcode_t ext2fs_dirent_swab_in(ext2_filsys fs, char *buf, int flags);
1507 extern errcode_t ext2fs_dirent_swab_out(ext2_filsys fs, char *buf, int flags);
1508 extern void ext2fs_swap_ext_attr(char *to, char *from, int bufsize,
1510 extern void ext2fs_swap_ext_attr_header(struct ext2_ext_attr_header *to_header,
1511 struct ext2_ext_attr_header *from_hdr);
1512 extern void ext2fs_swap_ext_attr_entry(struct ext2_ext_attr_entry *to_entry,
1513 struct ext2_ext_attr_entry *from_entry);
1514 extern void ext2fs_swap_super(struct ext2_super_block * super);
1515 extern void ext2fs_swap_group_desc(struct ext2_group_desc *gdp);
1516 extern void ext2fs_swap_group_desc2(ext2_filsys, struct ext2_group_desc *gdp);
1517 extern void ext2fs_swap_inode_full(ext2_filsys fs, struct ext2_inode_large *t,
1518 struct ext2_inode_large *f, int hostorder,
1520 extern void ext2fs_swap_inode(ext2_filsys fs,struct ext2_inode *t,
1521 struct ext2_inode *f, int hostorder);
1522 extern void ext2fs_swap_mmp(struct mmp_struct *mmp);
1525 extern int ext2fs_open_file(const char *pathname, int flags, mode_t mode);
1526 extern int ext2fs_stat(const char *path, ext2fs_struct_stat *buf);
1527 extern int ext2fs_fstat(int fd, ext2fs_struct_stat *buf);
1530 extern int ext2fs_inode_has_valid_blocks(struct ext2_inode *inode);
1531 extern int ext2fs_inode_has_valid_blocks2(ext2_filsys fs,
1532 struct ext2_inode *inode);
1535 extern int ext2fs_parse_version_string(const char *ver_string);
1536 extern int ext2fs_get_library_version(const char **ver_string,
1537 const char **date_string);
1539 /* write_bb_file.c */
1540 extern errcode_t ext2fs_write_bb_FILE(ext2_badblocks_list bb_list,
1545 /* inline functions */
1546 #ifdef NO_INLINE_FUNCS
1547 extern void ext2fs_init_csum_seed(ext2_filsys fs);
1548 extern errcode_t ext2fs_get_mem(unsigned long size, void *ptr);
1549 extern errcode_t ext2fs_get_memzero(unsigned long size, void *ptr);
1550 extern errcode_t ext2fs_get_array(unsigned long count,
1551 unsigned long size, void *ptr);
1552 extern errcode_t ext2fs_get_arrayzero(unsigned long count,
1553 unsigned long size, void *ptr);
1554 extern errcode_t ext2fs_free_mem(void *ptr);
1555 extern errcode_t ext2fs_resize_mem(unsigned long old_size,
1556 unsigned long size, void *ptr);
1557 extern void ext2fs_mark_super_dirty(ext2_filsys fs);
1558 extern void ext2fs_mark_changed(ext2_filsys fs);
1559 extern int ext2fs_test_changed(ext2_filsys fs);
1560 extern void ext2fs_mark_valid(ext2_filsys fs);
1561 extern void ext2fs_unmark_valid(ext2_filsys fs);
1562 extern int ext2fs_test_valid(ext2_filsys fs);
1563 extern void ext2fs_mark_ib_dirty(ext2_filsys fs);
1564 extern void ext2fs_mark_bb_dirty(ext2_filsys fs);
1565 extern int ext2fs_test_ib_dirty(ext2_filsys fs);
1566 extern int ext2fs_test_bb_dirty(ext2_filsys fs);
1567 extern dgrp_t ext2fs_group_of_blk(ext2_filsys fs, blk_t blk);
1568 extern dgrp_t ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino);
1569 extern blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group);
1570 extern blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group);
1571 extern blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
1572 struct ext2_inode *inode);
1573 extern unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b);
1574 extern __u64 ext2fs_div64_ceil(__u64 a, __u64 b);
1578 * The actual inlined functions definitions themselves...
1580 * If NO_INLINE_FUNCS is defined, then we won't try to do inline
1583 #if (defined(INCLUDE_INLINE_FUNCS) || !defined(NO_INLINE_FUNCS))
1584 #ifdef INCLUDE_INLINE_FUNCS
1585 #define _INLINE_ extern
1587 #if (__STDC_VERSION__ >= 199901L)
1588 #define _INLINE_ inline
1591 #define _INLINE_ extern __inline__
1592 #else /* For Watcom C */
1593 #define _INLINE_ extern inline
1594 #endif /* __GNUC__ */
1595 #endif /* __STDC_VERSION__ >= 199901L */
1598 _INLINE_ void ext2fs_init_csum_seed(ext2_filsys fs)
1600 if (!EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
1601 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
1604 fs->csum_seed = ext2fs_crc32c_le(~0, fs->super->s_uuid,
1605 sizeof(fs->super->s_uuid));
1608 #ifndef EXT2_CUSTOM_MEMORY_ROUTINES
1611 * Allocate memory. The 'ptr' arg must point to a pointer.
1613 _INLINE_ errcode_t ext2fs_get_mem(unsigned long size, void *ptr)
1619 return EXT2_ET_NO_MEMORY;
1620 memcpy(ptr, &pp, sizeof (pp));
1624 _INLINE_ errcode_t ext2fs_get_memzero(unsigned long size, void *ptr)
1630 return EXT2_ET_NO_MEMORY;
1631 memset(pp, 0, size);
1632 memcpy(ptr, &pp, sizeof(pp));
1636 _INLINE_ errcode_t ext2fs_get_array(unsigned long count, unsigned long size, void *ptr)
1638 if (count && (-1UL)/count<size)
1639 return EXT2_ET_NO_MEMORY;
1640 return ext2fs_get_mem(count*size, ptr);
1643 _INLINE_ errcode_t ext2fs_get_arrayzero(unsigned long count,
1644 unsigned long size, void *ptr)
1648 if (count && (-1UL)/count<size)
1649 return EXT2_ET_NO_MEMORY;
1650 pp = calloc(count, size);
1652 return EXT2_ET_NO_MEMORY;
1653 memcpy(ptr, &pp, sizeof(pp));
1658 * Free memory. The 'ptr' arg must point to a pointer.
1660 _INLINE_ errcode_t ext2fs_free_mem(void *ptr)
1664 memcpy(&p, ptr, sizeof(p));
1667 memcpy(ptr, &p, sizeof(p));
1672 * Resize memory. The 'ptr' arg must point to a pointer.
1674 _INLINE_ errcode_t ext2fs_resize_mem(unsigned long EXT2FS_ATTR((unused)) old_size,
1675 unsigned long size, void *ptr)
1679 /* Use "memcpy" for pointer assignments here to avoid problems
1680 * with C99 strict type aliasing rules. */
1681 memcpy(&p, ptr, sizeof(p));
1682 p = realloc(p, size);
1684 return EXT2_ET_NO_MEMORY;
1685 memcpy(ptr, &p, sizeof(p));
1688 #endif /* Custom memory routines */
1691 * Mark a filesystem superblock as dirty
1693 _INLINE_ void ext2fs_mark_super_dirty(ext2_filsys fs)
1695 fs->flags |= EXT2_FLAG_DIRTY | EXT2_FLAG_CHANGED;
1699 * Mark a filesystem as changed
1701 _INLINE_ void ext2fs_mark_changed(ext2_filsys fs)
1703 fs->flags |= EXT2_FLAG_CHANGED;
1707 * Check to see if a filesystem has changed
1709 _INLINE_ int ext2fs_test_changed(ext2_filsys fs)
1711 return (fs->flags & EXT2_FLAG_CHANGED);
1715 * Mark a filesystem as valid
1717 _INLINE_ void ext2fs_mark_valid(ext2_filsys fs)
1719 fs->flags |= EXT2_FLAG_VALID;
1723 * Mark a filesystem as NOT valid
1725 _INLINE_ void ext2fs_unmark_valid(ext2_filsys fs)
1727 fs->flags &= ~EXT2_FLAG_VALID;
1731 * Check to see if a filesystem is valid
1733 _INLINE_ int ext2fs_test_valid(ext2_filsys fs)
1735 return (fs->flags & EXT2_FLAG_VALID);
1739 * Mark the inode bitmap as dirty
1741 _INLINE_ void ext2fs_mark_ib_dirty(ext2_filsys fs)
1743 fs->flags |= EXT2_FLAG_IB_DIRTY | EXT2_FLAG_CHANGED;
1747 * Mark the block bitmap as dirty
1749 _INLINE_ void ext2fs_mark_bb_dirty(ext2_filsys fs)
1751 fs->flags |= EXT2_FLAG_BB_DIRTY | EXT2_FLAG_CHANGED;
1755 * Check to see if a filesystem's inode bitmap is dirty
1757 _INLINE_ int ext2fs_test_ib_dirty(ext2_filsys fs)
1759 return (fs->flags & EXT2_FLAG_IB_DIRTY);
1763 * Check to see if a filesystem's block bitmap is dirty
1765 _INLINE_ int ext2fs_test_bb_dirty(ext2_filsys fs)
1767 return (fs->flags & EXT2_FLAG_BB_DIRTY);
1771 * Return the group # of a block
1773 _INLINE_ dgrp_t ext2fs_group_of_blk(ext2_filsys fs, blk_t blk)
1775 return ext2fs_group_of_blk2(fs, blk);
1778 * Return the group # of an inode number
1780 _INLINE_ dgrp_t ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino)
1782 return (ino - 1) / fs->super->s_inodes_per_group;
1786 * Return the first block (inclusive) in a group
1788 _INLINE_ blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group)
1790 return (blk_t) ext2fs_group_first_block2(fs, group);
1794 * Return the last block (inclusive) in a group
1796 _INLINE_ blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group)
1798 return (blk_t) ext2fs_group_last_block2(fs, group);
1801 _INLINE_ blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
1802 struct ext2_inode *inode)
1804 return (blk_t) ext2fs_inode_data_blocks2(fs, inode);
1808 * This is an efficient, overflow safe way of calculating ceil((1.0 * a) / b)
1810 _INLINE_ unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b)
1814 return ((a - 1) / b) + 1;
1817 _INLINE_ __u64 ext2fs_div64_ceil(__u64 a, __u64 b)
1821 return ((a - 1) / b) + 1;
1824 _INLINE_ int ext2fs_dirent_name_len(const struct ext2_dir_entry *entry)
1826 return entry->name_len & 0xff;
1829 _INLINE_ void ext2fs_dirent_set_name_len(struct ext2_dir_entry *entry, int len)
1831 entry->name_len = (entry->name_len & 0xff00) | (len & 0xff);
1834 _INLINE_ int ext2fs_dirent_file_type(const struct ext2_dir_entry *entry)
1836 return entry->name_len >> 8;
1839 _INLINE_ void ext2fs_dirent_set_file_type(struct ext2_dir_entry *entry, int type)
1841 entry->name_len = (entry->name_len & 0xff) | (type << 8);
1851 #endif /* _EXT2FS_EXT2FS_H */