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 typedef __u32 ext2_ino_t;
69 typedef __u64 blk64_t;
71 typedef __u32 ext2_off_t;
72 typedef __u64 ext2_off64_t;
73 typedef __s64 e2_blkcnt_t;
74 typedef __u32 ext2_dirhash_t;
76 #if EXT2_FLAT_INCLUDES
80 #include "ext2_ext_attr.h"
82 #include <et/com_err.h>
83 #include <ext2fs/ext2_io.h>
84 #include <ext2fs/ext2_err.h>
85 #include <ext2fs/ext2_ext_attr.h>
89 * Portability help for Microsoft Visual C++
92 #define EXT2_QSORT_TYPE int __cdecl
94 #define EXT2_QSORT_TYPE int
97 typedef struct struct_ext2_filsys *ext2_filsys;
99 #define EXT2FS_MARK_ERROR 0
100 #define EXT2FS_UNMARK_ERROR 1
101 #define EXT2FS_TEST_ERROR 2
103 typedef struct ext2fs_struct_generic_bitmap *ext2fs_generic_bitmap;
104 typedef struct ext2fs_struct_generic_bitmap *ext2fs_inode_bitmap;
105 typedef struct ext2fs_struct_generic_bitmap *ext2fs_block_bitmap;
107 #define EXT2_FIRST_INODE(s) EXT2_FIRST_INO(s)
111 * Badblocks list definitions
114 typedef struct ext2_struct_u32_list *ext2_badblocks_list;
115 typedef struct ext2_struct_u32_iterate *ext2_badblocks_iterate;
117 typedef struct ext2_struct_u32_list *ext2_u32_list;
118 typedef struct ext2_struct_u32_iterate *ext2_u32_iterate;
121 typedef struct ext2_struct_u32_list *badblocks_list;
122 typedef struct ext2_struct_u32_iterate *badblocks_iterate;
124 #define BADBLOCKS_FLAG_DIRTY 1
127 * ext2_dblist structure and abstractions (see dblist.c)
129 struct ext2_db_entry2 {
132 e2_blkcnt_t blockcnt;
135 /* Ye Olde 32-bit version */
136 struct ext2_db_entry {
142 typedef struct ext2_struct_dblist *ext2_dblist;
144 #define DBLIST_ABORT 1
147 * ext2_fileio definitions
150 #define EXT2_FILE_WRITE 0x0001
151 #define EXT2_FILE_CREATE 0x0002
153 #define EXT2_FILE_MASK 0x00FF
155 #define EXT2_FILE_BUF_DIRTY 0x4000
156 #define EXT2_FILE_BUF_VALID 0x2000
158 typedef struct ext2_file *ext2_file_t;
160 #define EXT2_SEEK_SET 0
161 #define EXT2_SEEK_CUR 1
162 #define EXT2_SEEK_END 2
165 * Flags for the ext2_filsys structure and for ext2fs_open()
167 #define EXT2_FLAG_RW 0x01
168 #define EXT2_FLAG_CHANGED 0x02
169 #define EXT2_FLAG_DIRTY 0x04
170 #define EXT2_FLAG_VALID 0x08
171 #define EXT2_FLAG_IB_DIRTY 0x10
172 #define EXT2_FLAG_BB_DIRTY 0x20
173 #define EXT2_FLAG_SWAP_BYTES 0x40
174 #define EXT2_FLAG_SWAP_BYTES_READ 0x80
175 #define EXT2_FLAG_SWAP_BYTES_WRITE 0x100
176 #define EXT2_FLAG_MASTER_SB_ONLY 0x200
177 #define EXT2_FLAG_FORCE 0x400
178 #define EXT2_FLAG_SUPER_ONLY 0x800
179 #define EXT2_FLAG_JOURNAL_DEV_OK 0x1000
180 #define EXT2_FLAG_IMAGE_FILE 0x2000
181 #define EXT2_FLAG_EXCLUSIVE 0x4000
182 #define EXT2_FLAG_SOFTSUPP_FEATURES 0x8000
183 #define EXT2_FLAG_NOFREE_ON_ERROR 0x10000
184 #define EXT2_FLAG_64BITS 0x20000
185 #define EXT2_FLAG_PRINT_PROGRESS 0x40000
186 #define EXT2_FLAG_DIRECT_IO 0x80000
189 * Special flag in the ext2 inode i_flag field that means that this is
190 * a new inode. (So that ext2_write_inode() can clear extra fields.)
192 #define EXT2_NEW_INODE_FL 0x80000000
195 * Flags for mkjournal
197 * EXT2_MKJOURNAL_V1_SUPER Make a (deprecated) V1 journal superblock
199 #define EXT2_MKJOURNAL_V1_SUPER 0x0000001
201 struct opaque_ext2_group_desc;
203 struct struct_ext2_filsys {
208 struct ext2_super_block * super;
209 unsigned int blocksize;
210 int cluster_ratio_bits;
211 dgrp_t group_desc_count;
212 unsigned long desc_blocks;
213 struct opaque_ext2_group_desc * group_desc;
214 int inode_blocks_per_group;
215 ext2fs_inode_bitmap inode_map;
216 ext2fs_block_bitmap block_map;
217 /* XXX FIXME-64: not 64-bit safe, but not used? */
218 errcode_t (*get_blocks)(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
219 errcode_t (*check_directory)(ext2_filsys fs, ext2_ino_t ino);
220 errcode_t (*write_bitmaps)(ext2_filsys fs);
221 errcode_t (*read_inode)(ext2_filsys fs, ext2_ino_t ino,
222 struct ext2_inode *inode);
223 errcode_t (*write_inode)(ext2_filsys fs, ext2_ino_t ino,
224 struct ext2_inode *inode);
225 ext2_badblocks_list badblocks;
227 __u32 stride; /* for mke2fs */
228 struct ext2_super_block * orig_super;
229 struct ext2_image_hdr * image_header;
233 * Reserved for future expansion
238 * Reserved for the use of the calling application.
245 struct ext2_inode_cache *icache;
249 * More callback functions
251 errcode_t (*get_alloc_block)(ext2_filsys fs, blk64_t goal,
253 void (*block_alloc_stats)(ext2_filsys fs, blk64_t blk, int inuse);
256 #if EXT2_FLAT_INCLUDES
257 #include "e2_bitops.h"
259 #include <ext2fs/bitops.h>
263 * Return flags for the block iterator functions
265 #define BLOCK_CHANGED 1
266 #define BLOCK_ABORT 2
267 #define BLOCK_ERROR 4
270 * Block interate flags
272 * BLOCK_FLAG_APPEND, or BLOCK_FLAG_HOLE, indicates that the interator
273 * function should be called on blocks where the block number is zero.
274 * This is used by ext2fs_expand_dir() to be able to add a new block
275 * to an inode. It can also be used for programs that want to be able
276 * to deal with files that contain "holes".
278 * BLOCK_FLAG_DEPTH_TRAVERSE indicates that the iterator function for
279 * the indirect, doubly indirect, etc. blocks should be called after
280 * all of the blocks containined in the indirect blocks are processed.
281 * This is useful if you are going to be deallocating blocks from an
284 * BLOCK_FLAG_DATA_ONLY indicates that the iterator function should be
285 * called for data blocks only.
287 * BLOCK_FLAG_READ_ONLY is a promise by the caller that it will not
288 * modify returned block number.
290 * BLOCK_FLAG_NO_LARGE is for internal use only. It informs
291 * ext2fs_block_iterate2 that large files won't be accepted.
293 #define BLOCK_FLAG_APPEND 1
294 #define BLOCK_FLAG_HOLE 1
295 #define BLOCK_FLAG_DEPTH_TRAVERSE 2
296 #define BLOCK_FLAG_DATA_ONLY 4
297 #define BLOCK_FLAG_READ_ONLY 8
299 #define BLOCK_FLAG_NO_LARGE 0x1000
302 * Magic "block count" return values for the block iterator function.
304 #define BLOCK_COUNT_IND (-1)
305 #define BLOCK_COUNT_DIND (-2)
306 #define BLOCK_COUNT_TIND (-3)
307 #define BLOCK_COUNT_TRANSLATOR (-4)
311 * Flags for ext2fs_move_blocks
313 #define EXT2_BMOVE_GET_DBLIST 0x0001
314 #define EXT2_BMOVE_DEBUG 0x0002
318 * Generic (non-filesystem layout specific) extents structure
321 #define EXT2_EXTENT_FLAGS_LEAF 0x0001
322 #define EXT2_EXTENT_FLAGS_UNINIT 0x0002
323 #define EXT2_EXTENT_FLAGS_SECOND_VISIT 0x0004
325 struct ext2fs_extent {
326 blk64_t e_pblk; /* first physical block */
327 blk64_t e_lblk; /* first logical block extent covers */
328 __u32 e_len; /* number of blocks covered by extent */
329 __u32 e_flags; /* extent flags */
332 typedef struct ext2_extent_handle *ext2_extent_handle_t;
333 typedef struct ext2_extent_path *ext2_extent_path_t;
336 * Flags used by ext2fs_extent_get()
338 #define EXT2_EXTENT_CURRENT 0x0000
339 #define EXT2_EXTENT_MOVE_MASK 0x000F
340 #define EXT2_EXTENT_ROOT 0x0001
341 #define EXT2_EXTENT_LAST_LEAF 0x0002
342 #define EXT2_EXTENT_FIRST_SIB 0x0003
343 #define EXT2_EXTENT_LAST_SIB 0x0004
344 #define EXT2_EXTENT_NEXT_SIB 0x0005
345 #define EXT2_EXTENT_PREV_SIB 0x0006
346 #define EXT2_EXTENT_NEXT_LEAF 0x0007
347 #define EXT2_EXTENT_PREV_LEAF 0x0008
348 #define EXT2_EXTENT_NEXT 0x0009
349 #define EXT2_EXTENT_PREV 0x000A
350 #define EXT2_EXTENT_UP 0x000B
351 #define EXT2_EXTENT_DOWN 0x000C
352 #define EXT2_EXTENT_DOWN_AND_LAST 0x000D
355 * Flags used by ext2fs_extent_insert()
357 #define EXT2_EXTENT_INSERT_AFTER 0x0001 /* insert after handle loc'n */
358 #define EXT2_EXTENT_INSERT_NOSPLIT 0x0002 /* insert may not cause split */
361 * Flags used by ext2fs_extent_delete()
363 #define EXT2_EXTENT_DELETE_KEEP_EMPTY 0x001 /* keep node if last extnt gone */
366 * Flags used by ext2fs_extent_set_bmap()
368 #define EXT2_EXTENT_SET_BMAP_UNINIT 0x0001
371 * Data structure returned by ext2fs_extent_get_info()
373 struct ext2_extent_info {
383 __u32 max_uninit_len;
387 * Flags for directory block reading and writing functions
389 #define EXT2_DIRBLOCK_V2_STRUCT 0x0001
392 * Return flags for the directory iterator functions
394 #define DIRENT_CHANGED 1
395 #define DIRENT_ABORT 2
396 #define DIRENT_ERROR 3
399 * Directory iterator flags
402 #define DIRENT_FLAG_INCLUDE_EMPTY 1
403 #define DIRENT_FLAG_INCLUDE_REMOVED 2
405 #define DIRENT_DOT_FILE 1
406 #define DIRENT_DOT_DOT_FILE 2
407 #define DIRENT_OTHER_FILE 3
408 #define DIRENT_DELETED_FILE 4
411 * Inode scan definitions
413 typedef struct ext2_struct_inode_scan *ext2_inode_scan;
418 #define EXT2_SF_CHK_BADBLOCKS 0x0001
419 #define EXT2_SF_BAD_INODE_BLK 0x0002
420 #define EXT2_SF_BAD_EXTRA_BYTES 0x0004
421 #define EXT2_SF_SKIP_MISSING_ITABLE 0x0008
422 #define EXT2_SF_DO_LAZY 0x0010
425 * ext2fs_check_if_mounted flags
427 #define EXT2_MF_MOUNTED 1
428 #define EXT2_MF_ISROOT 2
429 #define EXT2_MF_READONLY 4
430 #define EXT2_MF_SWAP 8
431 #define EXT2_MF_BUSY 16
434 * Ext2/linux mode flags. We define them here so that we don't need
435 * to depend on the OS's sys/stat.h, since we may be compiling on a
438 #define LINUX_S_IFMT 00170000
439 #define LINUX_S_IFSOCK 0140000
440 #define LINUX_S_IFLNK 0120000
441 #define LINUX_S_IFREG 0100000
442 #define LINUX_S_IFBLK 0060000
443 #define LINUX_S_IFDIR 0040000
444 #define LINUX_S_IFCHR 0020000
445 #define LINUX_S_IFIFO 0010000
446 #define LINUX_S_ISUID 0004000
447 #define LINUX_S_ISGID 0002000
448 #define LINUX_S_ISVTX 0001000
450 #define LINUX_S_IRWXU 00700
451 #define LINUX_S_IRUSR 00400
452 #define LINUX_S_IWUSR 00200
453 #define LINUX_S_IXUSR 00100
455 #define LINUX_S_IRWXG 00070
456 #define LINUX_S_IRGRP 00040
457 #define LINUX_S_IWGRP 00020
458 #define LINUX_S_IXGRP 00010
460 #define LINUX_S_IRWXO 00007
461 #define LINUX_S_IROTH 00004
462 #define LINUX_S_IWOTH 00002
463 #define LINUX_S_IXOTH 00001
465 #define LINUX_S_ISLNK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFLNK)
466 #define LINUX_S_ISREG(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFREG)
467 #define LINUX_S_ISDIR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFDIR)
468 #define LINUX_S_ISCHR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFCHR)
469 #define LINUX_S_ISBLK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFBLK)
470 #define LINUX_S_ISFIFO(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFIFO)
471 #define LINUX_S_ISSOCK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFSOCK)
474 * ext2 size of an inode
476 #define EXT2_I_SIZE(i) ((i)->i_size | ((__u64) (i)->i_size_high << 32))
479 * ext2_icount_t abstraction
481 #define EXT2_ICOUNT_OPT_INCREMENT 0x01
483 typedef struct ext2_icount *ext2_icount_t;
486 * Flags for ext2fs_bmap
488 #define BMAP_ALLOC 0x0001
489 #define BMAP_SET 0x0002
492 * Returned flags from ext2fs_bmap
494 #define BMAP_RET_UNINIT 0x0001
497 * Flags for imager.c functions
499 #define IMAGER_FLAG_INODEMAP 1
500 #define IMAGER_FLAG_SPARSEWRITE 2
503 * For checking structure magic numbers...
506 #define EXT2_CHECK_MAGIC(struct, code) \
507 if ((struct)->magic != (code)) return (code)
511 * For ext2 compression support
513 #define EXT2FS_COMPRESSED_BLKADDR ((blk_t) -1)
514 #define HOLE_BLKADDR(_b) ((_b) == 0 || (_b) == EXT2FS_COMPRESSED_BLKADDR)
517 * Features supported by this version of the library
519 #define EXT2_LIB_FEATURE_COMPAT_SUPP (EXT2_FEATURE_COMPAT_DIR_PREALLOC|\
520 EXT2_FEATURE_COMPAT_IMAGIC_INODES|\
521 EXT3_FEATURE_COMPAT_HAS_JOURNAL|\
522 EXT2_FEATURE_COMPAT_RESIZE_INODE|\
523 EXT2_FEATURE_COMPAT_DIR_INDEX|\
524 EXT2_FEATURE_COMPAT_EXT_ATTR)
526 /* This #ifdef is temporary until compression is fully supported */
527 #ifdef ENABLE_COMPRESSION
528 #ifndef I_KNOW_THAT_COMPRESSION_IS_EXPERIMENTAL
529 /* If the below warning bugs you, then have
530 `CPPFLAGS=-DI_KNOW_THAT_COMPRESSION_IS_EXPERIMENTAL' in your
531 environment at configure time. */
532 #warning "Compression support is experimental"
534 #define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\
535 EXT2_FEATURE_INCOMPAT_COMPRESSION|\
536 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\
537 EXT2_FEATURE_INCOMPAT_META_BG|\
538 EXT3_FEATURE_INCOMPAT_RECOVER|\
539 EXT3_FEATURE_INCOMPAT_EXTENTS|\
540 EXT4_FEATURE_INCOMPAT_FLEX_BG|\
541 EXT4_FEATURE_INCOMPAT_64BIT)
543 #define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\
544 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\
545 EXT2_FEATURE_INCOMPAT_META_BG|\
546 EXT3_FEATURE_INCOMPAT_RECOVER|\
547 EXT3_FEATURE_INCOMPAT_EXTENTS|\
548 EXT4_FEATURE_INCOMPAT_FLEX_BG|\
549 EXT4_FEATURE_INCOMPAT_64BIT)
551 #define EXT2_LIB_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|\
552 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|\
553 EXT2_FEATURE_RO_COMPAT_LARGE_FILE|\
554 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|\
555 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|\
556 EXT4_FEATURE_RO_COMPAT_GDT_CSUM|\
557 EXT4_FEATURE_RO_COMPAT_BIGALLOC)
560 * These features are only allowed if EXT2_FLAG_SOFTSUPP_FEATURES is passed
563 #define EXT2_LIB_SOFTSUPP_INCOMPAT (0)
564 #define EXT2_LIB_SOFTSUPP_RO_COMPAT (EXT4_FEATURE_RO_COMPAT_BIGALLOC)
567 /* Translate a block number to a cluster number */
568 #define EXT2FS_CLUSTER_RATIO(fs) (1 << (fs)->cluster_ratio_bits)
569 #define EXT2FS_CLUSTER_MASK(fs) (EXT2FS_CLUSTER_RATIO(fs) - 1)
570 #define EXT2FS_B2C(fs, blk) ((blk) >> (fs)->cluster_ratio_bits)
571 /* Translate a cluster number to a block number */
572 #define EXT2FS_C2B(fs, cluster) ((cluster) << (fs)->cluster_ratio_bits)
573 /* Translate # of blks to # of clusters */
574 #define EXT2FS_NUM_B2C(fs, blks) (((blks) + EXT2FS_CLUSTER_MASK(fs)) >> \
575 (fs)->cluster_ratio_bits)
578 * function prototypes
582 extern errcode_t ext2fs_new_inode(ext2_filsys fs, ext2_ino_t dir, int mode,
583 ext2fs_inode_bitmap map, ext2_ino_t *ret);
584 extern errcode_t ext2fs_new_block(ext2_filsys fs, blk_t goal,
585 ext2fs_block_bitmap map, blk_t *ret);
586 extern errcode_t ext2fs_new_block2(ext2_filsys fs, blk64_t goal,
587 ext2fs_block_bitmap map, blk64_t *ret);
588 extern errcode_t ext2fs_get_free_blocks(ext2_filsys fs, blk_t start,
589 blk_t finish, int num,
590 ext2fs_block_bitmap map,
592 extern errcode_t ext2fs_get_free_blocks2(ext2_filsys fs, blk64_t start,
593 blk64_t finish, int num,
594 ext2fs_block_bitmap map,
596 extern errcode_t ext2fs_alloc_block(ext2_filsys fs, blk_t goal,
597 char *block_buf, blk_t *ret);
598 extern errcode_t ext2fs_alloc_block2(ext2_filsys fs, blk64_t goal,
599 char *block_buf, blk64_t *ret);
600 extern void ext2fs_set_alloc_block_callback(ext2_filsys fs,
601 errcode_t (*func)(ext2_filsys fs,
604 errcode_t (**old)(ext2_filsys fs,
609 extern int ext2fs_reserve_super_and_bgd(ext2_filsys fs,
611 ext2fs_block_bitmap bmap);
612 extern void ext2fs_set_block_alloc_stats_callback(ext2_filsys fs,
613 void (*func)(ext2_filsys fs,
616 void (**old)(ext2_filsys fs,
621 void ext2fs_inode_alloc_stats(ext2_filsys fs, ext2_ino_t ino, int inuse);
622 void ext2fs_inode_alloc_stats2(ext2_filsys fs, ext2_ino_t ino,
623 int inuse, int isdir);
624 void ext2fs_block_alloc_stats(ext2_filsys fs, blk_t blk, int inuse);
625 void ext2fs_block_alloc_stats2(ext2_filsys fs, blk64_t blk, int inuse);
628 extern errcode_t ext2fs_allocate_tables(ext2_filsys fs);
629 extern errcode_t ext2fs_allocate_group_table(ext2_filsys fs, dgrp_t group,
630 ext2fs_block_bitmap bmap);
633 extern errcode_t ext2fs_u32_list_create(ext2_u32_list *ret, int size);
634 extern errcode_t ext2fs_u32_list_add(ext2_u32_list bb, __u32 blk);
635 extern int ext2fs_u32_list_find(ext2_u32_list bb, __u32 blk);
636 extern int ext2fs_u32_list_test(ext2_u32_list bb, blk_t blk);
637 extern errcode_t ext2fs_u32_list_iterate_begin(ext2_u32_list bb,
638 ext2_u32_iterate *ret);
639 extern int ext2fs_u32_list_iterate(ext2_u32_iterate iter, blk_t *blk);
640 extern void ext2fs_u32_list_iterate_end(ext2_u32_iterate iter);
641 extern errcode_t ext2fs_u32_copy(ext2_u32_list src, ext2_u32_list *dest);
642 extern int ext2fs_u32_list_equal(ext2_u32_list bb1, ext2_u32_list bb2);
644 extern errcode_t ext2fs_badblocks_list_create(ext2_badblocks_list *ret,
646 extern errcode_t ext2fs_badblocks_list_add(ext2_badblocks_list bb,
648 extern int ext2fs_badblocks_list_test(ext2_badblocks_list bb,
650 extern int ext2fs_u32_list_del(ext2_u32_list bb, __u32 blk);
651 extern void ext2fs_badblocks_list_del(ext2_u32_list bb, __u32 blk);
653 ext2fs_badblocks_list_iterate_begin(ext2_badblocks_list bb,
654 ext2_badblocks_iterate *ret);
655 extern int ext2fs_badblocks_list_iterate(ext2_badblocks_iterate iter,
657 extern void ext2fs_badblocks_list_iterate_end(ext2_badblocks_iterate iter);
658 extern errcode_t ext2fs_badblocks_copy(ext2_badblocks_list src,
659 ext2_badblocks_list *dest);
660 extern int ext2fs_badblocks_equal(ext2_badblocks_list bb1,
661 ext2_badblocks_list bb2);
662 extern int ext2fs_u32_list_count(ext2_u32_list bb);
665 extern errcode_t badblocks_list_create(badblocks_list *ret, int size);
666 extern errcode_t badblocks_list_add(badblocks_list bb, blk_t blk);
667 extern int badblocks_list_test(badblocks_list bb, blk_t blk);
668 extern errcode_t badblocks_list_iterate_begin(badblocks_list bb,
669 badblocks_iterate *ret);
670 extern int badblocks_list_iterate(badblocks_iterate iter, blk_t *blk);
671 extern void badblocks_list_iterate_end(badblocks_iterate iter);
672 extern void badblocks_list_free(badblocks_list bb);
675 extern errcode_t ext2fs_update_bb_inode(ext2_filsys fs,
676 ext2_badblocks_list bb_list);
679 extern void ext2fs_free_block_bitmap(ext2fs_block_bitmap bitmap);
680 extern void ext2fs_free_inode_bitmap(ext2fs_inode_bitmap bitmap);
681 extern errcode_t ext2fs_copy_bitmap(ext2fs_generic_bitmap src,
682 ext2fs_generic_bitmap *dest);
683 extern errcode_t ext2fs_write_inode_bitmap(ext2_filsys fs);
684 extern errcode_t ext2fs_write_block_bitmap (ext2_filsys fs);
685 extern errcode_t ext2fs_read_inode_bitmap (ext2_filsys fs);
686 extern errcode_t ext2fs_read_block_bitmap(ext2_filsys fs);
687 extern errcode_t ext2fs_allocate_block_bitmap(ext2_filsys fs,
689 ext2fs_block_bitmap *ret);
690 extern errcode_t ext2fs_allocate_subcluster_bitmap(ext2_filsys fs,
692 ext2fs_block_bitmap *ret);
693 extern int ext2fs_get_bitmap_granularity(ext2fs_block_bitmap bitmap);
694 extern errcode_t ext2fs_allocate_inode_bitmap(ext2_filsys fs,
696 ext2fs_inode_bitmap *ret);
697 extern errcode_t ext2fs_fudge_inode_bitmap_end(ext2fs_inode_bitmap bitmap,
698 ext2_ino_t end, ext2_ino_t *oend);
699 extern errcode_t ext2fs_fudge_block_bitmap_end(ext2fs_block_bitmap bitmap,
700 blk_t end, blk_t *oend);
701 extern errcode_t ext2fs_fudge_block_bitmap_end2(ext2fs_block_bitmap bitmap,
702 blk64_t end, blk64_t *oend);
703 extern void ext2fs_clear_inode_bitmap(ext2fs_inode_bitmap bitmap);
704 extern void ext2fs_clear_block_bitmap(ext2fs_block_bitmap bitmap);
705 extern errcode_t ext2fs_read_bitmaps(ext2_filsys fs);
706 extern errcode_t ext2fs_write_bitmaps(ext2_filsys fs);
707 extern errcode_t ext2fs_resize_inode_bitmap(__u32 new_end, __u32 new_real_end,
708 ext2fs_inode_bitmap bmap);
709 extern errcode_t ext2fs_resize_inode_bitmap2(__u64 new_end,
711 ext2fs_inode_bitmap bmap);
712 extern errcode_t ext2fs_resize_block_bitmap(__u32 new_end, __u32 new_real_end,
713 ext2fs_block_bitmap bmap);
714 extern errcode_t ext2fs_resize_block_bitmap2(__u64 new_end,
716 ext2fs_block_bitmap bmap);
717 extern errcode_t ext2fs_compare_block_bitmap(ext2fs_block_bitmap bm1,
718 ext2fs_block_bitmap bm2);
719 extern errcode_t ext2fs_compare_inode_bitmap(ext2fs_inode_bitmap bm1,
720 ext2fs_inode_bitmap bm2);
721 extern errcode_t ext2fs_set_inode_bitmap_range(ext2fs_inode_bitmap bmap,
722 ext2_ino_t start, unsigned int num,
724 extern errcode_t ext2fs_set_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
725 __u64 start, size_t num,
727 extern errcode_t ext2fs_get_inode_bitmap_range(ext2fs_inode_bitmap bmap,
728 ext2_ino_t start, unsigned int num,
730 extern errcode_t ext2fs_get_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
731 __u64 start, size_t num,
733 extern errcode_t ext2fs_set_block_bitmap_range(ext2fs_block_bitmap bmap,
734 blk_t start, unsigned int num,
736 extern errcode_t ext2fs_set_block_bitmap_range2(ext2fs_block_bitmap bmap,
737 blk64_t start, size_t num,
739 extern errcode_t ext2fs_get_block_bitmap_range(ext2fs_block_bitmap bmap,
740 blk_t start, unsigned int num,
742 extern errcode_t ext2fs_get_block_bitmap_range2(ext2fs_block_bitmap bmap,
743 blk64_t start, size_t num,
747 extern dgrp_t ext2fs_group_of_blk2(ext2_filsys fs, blk64_t);
748 extern blk64_t ext2fs_group_first_block2(ext2_filsys fs, dgrp_t group);
749 extern blk64_t ext2fs_group_last_block2(ext2_filsys fs, dgrp_t group);
750 extern blk64_t ext2fs_inode_data_blocks2(ext2_filsys fs,
751 struct ext2_inode *inode);
752 extern blk64_t ext2fs_inode_i_blocks(ext2_filsys fs,
753 struct ext2_inode *inode);
754 extern blk64_t ext2fs_blocks_count(struct ext2_super_block *super);
755 extern void ext2fs_blocks_count_set(struct ext2_super_block *super,
757 extern void ext2fs_blocks_count_add(struct ext2_super_block *super,
759 extern blk64_t ext2fs_r_blocks_count(struct ext2_super_block *super);
760 extern void ext2fs_r_blocks_count_set(struct ext2_super_block *super,
762 extern void ext2fs_r_blocks_count_add(struct ext2_super_block *super,
764 extern blk64_t ext2fs_free_blocks_count(struct ext2_super_block *super);
765 extern void ext2fs_free_blocks_count_set(struct ext2_super_block *super,
767 extern void ext2fs_free_blocks_count_add(struct ext2_super_block *super,
769 /* Block group descriptor accessor functions */
770 extern struct ext2_group_desc *ext2fs_group_desc(ext2_filsys fs,
771 struct opaque_ext2_group_desc *gdp,
773 extern blk64_t ext2fs_block_bitmap_loc(ext2_filsys fs, dgrp_t group);
774 extern void ext2fs_block_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
776 extern blk64_t ext2fs_inode_bitmap_loc(ext2_filsys fs, dgrp_t group);
777 extern void ext2fs_inode_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
779 extern blk64_t ext2fs_inode_table_loc(ext2_filsys fs, dgrp_t group);
780 extern void ext2fs_inode_table_loc_set(ext2_filsys fs, dgrp_t group,
782 extern __u32 ext2fs_bg_free_blocks_count(ext2_filsys fs, dgrp_t group);
783 extern void ext2fs_bg_free_blocks_count_set(ext2_filsys fs, dgrp_t group,
785 extern __u32 ext2fs_bg_free_inodes_count(ext2_filsys fs, dgrp_t group);
786 extern void ext2fs_bg_free_inodes_count_set(ext2_filsys fs, dgrp_t group,
788 extern __u32 ext2fs_bg_used_dirs_count(ext2_filsys fs, dgrp_t group);
789 extern void ext2fs_bg_used_dirs_count_set(ext2_filsys fs, dgrp_t group,
791 extern __u32 ext2fs_bg_itable_unused(ext2_filsys fs, dgrp_t group);
792 extern void ext2fs_bg_itable_unused_set(ext2_filsys fs, dgrp_t group,
794 extern __u16 ext2fs_bg_flags(ext2_filsys fs, dgrp_t group);
795 extern void ext2fs_bg_flags_zap(ext2_filsys fs, dgrp_t group);
796 extern int ext2fs_bg_flags_test(ext2_filsys fs, dgrp_t group, __u16 bg_flag);
797 extern void ext2fs_bg_flags_set(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
798 extern void ext2fs_bg_flags_clear(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
799 extern __u16 ext2fs_bg_checksum(ext2_filsys fs, dgrp_t group);
800 extern void ext2fs_bg_checksum_set(ext2_filsys fs, dgrp_t group, __u16 checksum);
801 extern blk64_t ext2fs_file_acl_block(const struct ext2_inode *inode);
802 extern void ext2fs_file_acl_block_set(struct ext2_inode *inode, blk64_t blk);
805 extern errcode_t ext2fs_block_iterate(ext2_filsys fs,
809 int (*func)(ext2_filsys fs,
814 errcode_t ext2fs_block_iterate2(ext2_filsys fs,
818 int (*func)(ext2_filsys fs,
820 e2_blkcnt_t blockcnt,
825 errcode_t ext2fs_block_iterate3(ext2_filsys fs,
829 int (*func)(ext2_filsys fs,
831 e2_blkcnt_t blockcnt,
838 extern errcode_t ext2fs_bmap(ext2_filsys fs, ext2_ino_t ino,
839 struct ext2_inode *inode,
840 char *block_buf, int bmap_flags,
841 blk_t block, blk_t *phys_blk);
842 extern errcode_t ext2fs_bmap2(ext2_filsys fs, ext2_ino_t ino,
843 struct ext2_inode *inode,
844 char *block_buf, int bmap_flags, blk64_t block,
845 int *ret_flags, blk64_t *phys_blk);
849 extern errcode_t ext2fs_move_blocks(ext2_filsys fs,
850 ext2fs_block_bitmap reserve,
851 ext2fs_block_bitmap alloc_map,
856 extern errcode_t ext2fs_check_desc(ext2_filsys fs);
859 extern errcode_t ext2fs_close(ext2_filsys fs);
860 extern errcode_t ext2fs_flush(ext2_filsys fs);
861 extern int ext2fs_bg_has_super(ext2_filsys fs, int group_block);
862 extern errcode_t ext2fs_super_and_bgd_loc2(ext2_filsys fs,
864 blk64_t *ret_super_blk,
865 blk64_t *ret_old_desc_blk,
866 blk64_t *ret_new_desc_blk,
867 blk_t *ret_used_blks);
868 extern int ext2fs_super_and_bgd_loc(ext2_filsys fs,
870 blk_t *ret_super_blk,
871 blk_t *ret_old_desc_blk,
872 blk_t *ret_new_desc_blk,
874 extern void ext2fs_update_dynamic_rev(ext2_filsys fs);
877 extern void ext2fs_group_desc_csum_set(ext2_filsys fs, dgrp_t group);
878 extern int ext2fs_group_desc_csum_verify(ext2_filsys fs, dgrp_t group);
879 extern errcode_t ext2fs_set_gdt_csum(ext2_filsys fs);
883 extern errcode_t ext2fs_get_num_dirs(ext2_filsys fs, ext2_ino_t *ret_num_dirs);
884 extern errcode_t ext2fs_init_dblist(ext2_filsys fs, ext2_dblist *ret_dblist);
885 extern errcode_t ext2fs_add_dir_block(ext2_dblist dblist, ext2_ino_t ino,
886 blk_t blk, int blockcnt);
887 extern errcode_t ext2fs_add_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
888 blk64_t blk, e2_blkcnt_t blockcnt);
889 extern void ext2fs_dblist_sort(ext2_dblist dblist,
890 EXT2_QSORT_TYPE (*sortfunc)(const void *,
892 extern void ext2fs_dblist_sort2(ext2_dblist dblist,
893 EXT2_QSORT_TYPE (*sortfunc)(const void *,
895 extern errcode_t ext2fs_dblist_iterate(ext2_dblist dblist,
896 int (*func)(ext2_filsys fs, struct ext2_db_entry *db_info,
899 extern errcode_t ext2fs_dblist_iterate2(ext2_dblist dblist,
900 int (*func)(ext2_filsys fs, struct ext2_db_entry2 *db_info,
903 extern errcode_t ext2fs_set_dir_block(ext2_dblist dblist, ext2_ino_t ino,
904 blk_t blk, int blockcnt);
905 extern errcode_t ext2fs_set_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
906 blk64_t blk, e2_blkcnt_t blockcnt);
907 extern errcode_t ext2fs_copy_dblist(ext2_dblist src,
909 extern int ext2fs_dblist_count(ext2_dblist dblist);
910 extern blk64_t ext2fs_dblist_count2(ext2_dblist dblist);
911 extern errcode_t ext2fs_dblist_get_last(ext2_dblist dblist,
912 struct ext2_db_entry **entry);
913 extern errcode_t ext2fs_dblist_get_last2(ext2_dblist dblist,
914 struct ext2_db_entry2 **entry);
915 extern errcode_t ext2fs_dblist_drop_last(ext2_dblist dblist);
919 ext2fs_dblist_dir_iterate(ext2_dblist dblist,
922 int (*func)(ext2_ino_t dir,
924 struct ext2_dir_entry *dirent,
932 extern errcode_t ext2fs_read_dir_block(ext2_filsys fs, blk_t block,
934 extern errcode_t ext2fs_read_dir_block2(ext2_filsys fs, blk_t block,
935 void *buf, int flags);
936 extern errcode_t ext2fs_read_dir_block3(ext2_filsys fs, blk64_t block,
937 void *buf, int flags);
938 extern errcode_t ext2fs_write_dir_block(ext2_filsys fs, blk_t block,
940 extern errcode_t ext2fs_write_dir_block2(ext2_filsys fs, blk_t block,
941 void *buf, int flags);
942 extern errcode_t ext2fs_write_dir_block3(ext2_filsys fs, blk64_t block,
943 void *buf, int flags);
946 extern errcode_t ext2fs_dirhash(int version, const char *name, int len,
948 ext2_dirhash_t *ret_hash,
949 ext2_dirhash_t *ret_minor_hash);
953 extern errcode_t ext2fs_get_rec_len(ext2_filsys fs,
954 struct ext2_dir_entry *dirent,
955 unsigned int *rec_len);
956 extern errcode_t ext2fs_set_rec_len(ext2_filsys fs,
958 struct ext2_dir_entry *dirent);
959 extern errcode_t ext2fs_dir_iterate(ext2_filsys fs,
963 int (*func)(struct ext2_dir_entry *dirent,
969 extern errcode_t ext2fs_dir_iterate2(ext2_filsys fs,
973 int (*func)(ext2_ino_t dir,
975 struct ext2_dir_entry *dirent,
983 extern errcode_t ext2fs_dup_handle(ext2_filsys src, ext2_filsys *dest);
986 extern errcode_t ext2fs_expand_dir(ext2_filsys fs, ext2_ino_t dir);
989 extern __u32 ext2fs_ext_attr_hash_entry(struct ext2_ext_attr_entry *entry,
991 extern errcode_t ext2fs_read_ext_attr(ext2_filsys fs, blk_t block, void *buf);
992 extern errcode_t ext2fs_read_ext_attr2(ext2_filsys fs, blk64_t block,
994 extern errcode_t ext2fs_write_ext_attr(ext2_filsys fs, blk_t block,
996 extern errcode_t ext2fs_write_ext_attr2(ext2_filsys fs, blk64_t block,
998 extern errcode_t ext2fs_adjust_ea_refcount(ext2_filsys fs, blk_t blk,
1000 int adjust, __u32 *newcount);
1001 extern errcode_t ext2fs_adjust_ea_refcount2(ext2_filsys fs, blk64_t blk,
1003 int adjust, __u32 *newcount);
1006 extern errcode_t ext2fs_extent_header_verify(void *ptr, int size);
1007 extern errcode_t ext2fs_extent_open(ext2_filsys fs, ext2_ino_t ino,
1008 ext2_extent_handle_t *handle);
1009 extern errcode_t ext2fs_extent_open2(ext2_filsys fs, ext2_ino_t ino,
1010 struct ext2_inode *inode,
1011 ext2_extent_handle_t *ret_handle);
1012 extern void ext2fs_extent_free(ext2_extent_handle_t handle);
1013 extern errcode_t ext2fs_extent_get(ext2_extent_handle_t handle,
1014 int flags, struct ext2fs_extent *extent);
1015 extern errcode_t ext2fs_extent_replace(ext2_extent_handle_t handle, int flags,
1016 struct ext2fs_extent *extent);
1017 extern errcode_t ext2fs_extent_insert(ext2_extent_handle_t handle, int flags,
1018 struct ext2fs_extent *extent);
1019 extern errcode_t ext2fs_extent_set_bmap(ext2_extent_handle_t handle,
1020 blk64_t logical, blk64_t physical,
1022 extern errcode_t ext2fs_extent_delete(ext2_extent_handle_t handle, int flags);
1023 extern errcode_t ext2fs_extent_get_info(ext2_extent_handle_t handle,
1024 struct ext2_extent_info *info);
1025 extern errcode_t ext2fs_extent_goto(ext2_extent_handle_t handle,
1029 extern errcode_t ext2fs_file_open2(ext2_filsys fs, ext2_ino_t ino,
1030 struct ext2_inode *inode,
1031 int flags, ext2_file_t *ret);
1032 extern errcode_t ext2fs_file_open(ext2_filsys fs, ext2_ino_t ino,
1033 int flags, ext2_file_t *ret);
1034 extern ext2_filsys ext2fs_file_get_fs(ext2_file_t file);
1035 struct ext2_inode *ext2fs_file_get_inode(ext2_file_t file);
1036 extern errcode_t ext2fs_file_close(ext2_file_t file);
1037 extern errcode_t ext2fs_file_flush(ext2_file_t file);
1038 extern errcode_t ext2fs_file_read(ext2_file_t file, void *buf,
1039 unsigned int wanted, unsigned int *got);
1040 extern errcode_t ext2fs_file_write(ext2_file_t file, const void *buf,
1041 unsigned int nbytes, unsigned int *written);
1042 extern errcode_t ext2fs_file_llseek(ext2_file_t file, __u64 offset,
1043 int whence, __u64 *ret_pos);
1044 extern errcode_t ext2fs_file_lseek(ext2_file_t file, ext2_off_t offset,
1045 int whence, ext2_off_t *ret_pos);
1046 errcode_t ext2fs_file_get_lsize(ext2_file_t file, __u64 *ret_size);
1047 extern ext2_off_t ext2fs_file_get_size(ext2_file_t file);
1048 extern errcode_t ext2fs_file_set_size(ext2_file_t file, ext2_off_t size);
1049 extern errcode_t ext2fs_file_set_size2(ext2_file_t file, ext2_off64_t size);
1052 extern char *ext2fs_find_block_device(dev_t device);
1055 extern errcode_t ext2fs_sync_device(int fd, int flushb);
1058 extern void ext2fs_free(ext2_filsys fs);
1059 extern void ext2fs_free_dblist(ext2_dblist dblist);
1060 extern void ext2fs_badblocks_list_free(ext2_badblocks_list bb);
1061 extern void ext2fs_u32_list_free(ext2_u32_list bb);
1064 extern void ext2fs_free_generic_bitmap(ext2fs_inode_bitmap bitmap);
1065 extern errcode_t ext2fs_make_generic_bitmap(errcode_t magic, ext2_filsys fs,
1066 __u32 start, __u32 end,
1068 const char *descr, char *init_map,
1069 ext2fs_generic_bitmap *ret);
1070 extern errcode_t ext2fs_allocate_generic_bitmap(__u32 start,
1074 ext2fs_generic_bitmap *ret);
1075 extern errcode_t ext2fs_copy_generic_bitmap(ext2fs_generic_bitmap src,
1076 ext2fs_generic_bitmap *dest);
1077 extern void ext2fs_clear_generic_bitmap(ext2fs_generic_bitmap bitmap);
1078 extern errcode_t ext2fs_fudge_generic_bitmap_end(ext2fs_inode_bitmap bitmap,
1083 extern void ext2fs_set_generic_bitmap_padding(ext2fs_generic_bitmap map);
1084 extern errcode_t ext2fs_resize_generic_bitmap(errcode_t magic,
1087 ext2fs_generic_bitmap bmap);
1088 extern errcode_t ext2fs_compare_generic_bitmap(errcode_t magic, errcode_t neq,
1089 ext2fs_generic_bitmap bm1,
1090 ext2fs_generic_bitmap bm2);
1091 extern errcode_t ext2fs_get_generic_bitmap_range(ext2fs_generic_bitmap bmap,
1093 __u32 start, __u32 num,
1095 extern errcode_t ext2fs_set_generic_bitmap_range(ext2fs_generic_bitmap bmap,
1097 __u32 start, __u32 num,
1100 /* gen_bitmap64.c */
1101 void ext2fs_free_generic_bmap(ext2fs_generic_bitmap bmap);
1102 errcode_t ext2fs_alloc_generic_bmap(ext2_filsys fs, errcode_t magic,
1103 int type, __u64 start, __u64 end,
1106 ext2fs_generic_bitmap *ret);
1107 errcode_t ext2fs_copy_generic_bmap(ext2fs_generic_bitmap src,
1108 ext2fs_generic_bitmap *dest);
1109 void ext2fs_clear_generic_bmap(ext2fs_generic_bitmap bitmap);
1110 errcode_t ext2fs_fudge_generic_bmap_end(ext2fs_generic_bitmap bitmap,
1112 __u64 end, __u64 *oend);
1113 void ext2fs_set_generic_bmap_padding(ext2fs_generic_bitmap bmap);
1114 errcode_t ext2fs_resize_generic_bmap(ext2fs_generic_bitmap bmap,
1116 __u64 new_real_end);
1117 errcode_t ext2fs_compare_generic_bmap(errcode_t neq,
1118 ext2fs_generic_bitmap bm1,
1119 ext2fs_generic_bitmap bm2);
1120 errcode_t ext2fs_get_generic_bmap_range(ext2fs_generic_bitmap bmap,
1121 __u64 start, unsigned int num,
1123 errcode_t ext2fs_set_generic_bmap_range(ext2fs_generic_bitmap bmap,
1124 __u64 start, unsigned int num,
1126 errcode_t ext2fs_convert_subcluster_bitmap(ext2_filsys fs,
1127 ext2fs_block_bitmap *bitmap);
1130 extern errcode_t ext2fs_get_device_size(const char *file, int blocksize,
1132 extern errcode_t ext2fs_get_device_size2(const char *file, int blocksize,
1133 blk64_t *retblocks);
1136 errcode_t ext2fs_get_device_sectsize(const char *file, int *sectsize);
1137 errcode_t ext2fs_get_device_phys_sectsize(const char *file, int *sectsize);
1140 errcode_t ext2fs_iblk_add_blocks(ext2_filsys fs, struct ext2_inode *inode,
1141 blk64_t num_blocks);
1142 errcode_t ext2fs_iblk_sub_blocks(ext2_filsys fs, struct ext2_inode *inode,
1143 blk64_t num_blocks);
1144 errcode_t ext2fs_iblk_set(ext2_filsys fs, struct ext2_inode *inode, blk64_t b);
1147 extern errcode_t ext2fs_image_inode_write(ext2_filsys fs, int fd, int flags);
1148 extern errcode_t ext2fs_image_inode_read(ext2_filsys fs, int fd, int flags);
1149 extern errcode_t ext2fs_image_super_write(ext2_filsys fs, int fd, int flags);
1150 extern errcode_t ext2fs_image_super_read(ext2_filsys fs, int fd, int flags);
1151 extern errcode_t ext2fs_image_bitmap_write(ext2_filsys fs, int fd, int flags);
1152 extern errcode_t ext2fs_image_bitmap_read(ext2_filsys fs, int fd, int flags);
1155 errcode_t ext2fs_read_ind_block(ext2_filsys fs, blk_t blk, void *buf);
1156 errcode_t ext2fs_write_ind_block(ext2_filsys fs, blk_t blk, void *buf);
1159 extern errcode_t ext2fs_initialize(const char *name, int flags,
1160 struct ext2_super_block *param,
1161 io_manager manager, ext2_filsys *ret_fs);
1164 extern void ext2fs_free_icount(ext2_icount_t icount);
1165 extern errcode_t ext2fs_create_icount_tdb(ext2_filsys fs, char *tdb_dir,
1166 int flags, ext2_icount_t *ret);
1167 extern errcode_t ext2fs_create_icount2(ext2_filsys fs, int flags,
1169 ext2_icount_t hint, ext2_icount_t *ret);
1170 extern errcode_t ext2fs_create_icount(ext2_filsys fs, int flags,
1172 ext2_icount_t *ret);
1173 extern errcode_t ext2fs_icount_fetch(ext2_icount_t icount, ext2_ino_t ino,
1175 extern errcode_t ext2fs_icount_increment(ext2_icount_t icount, ext2_ino_t ino,
1177 extern errcode_t ext2fs_icount_decrement(ext2_icount_t icount, ext2_ino_t ino,
1179 extern errcode_t ext2fs_icount_store(ext2_icount_t icount, ext2_ino_t ino,
1181 extern ext2_ino_t ext2fs_get_icount_size(ext2_icount_t icount);
1182 errcode_t ext2fs_icount_validate(ext2_icount_t icount, FILE *);
1185 extern errcode_t ext2fs_flush_icache(ext2_filsys fs);
1186 extern errcode_t ext2fs_get_next_inode_full(ext2_inode_scan scan,
1188 struct ext2_inode *inode,
1190 extern errcode_t ext2fs_open_inode_scan(ext2_filsys fs, int buffer_blocks,
1191 ext2_inode_scan *ret_scan);
1192 extern void ext2fs_close_inode_scan(ext2_inode_scan scan);
1193 extern errcode_t ext2fs_get_next_inode(ext2_inode_scan scan, ext2_ino_t *ino,
1194 struct ext2_inode *inode);
1195 extern errcode_t ext2fs_inode_scan_goto_blockgroup(ext2_inode_scan scan,
1197 extern void ext2fs_set_inode_callback
1198 (ext2_inode_scan scan,
1199 errcode_t (*done_group)(ext2_filsys fs,
1200 ext2_inode_scan scan,
1203 void *done_group_data);
1204 extern int ext2fs_inode_scan_flags(ext2_inode_scan scan, int set_flags,
1206 extern errcode_t ext2fs_read_inode_full(ext2_filsys fs, ext2_ino_t ino,
1207 struct ext2_inode * inode,
1209 extern errcode_t ext2fs_read_inode (ext2_filsys fs, ext2_ino_t ino,
1210 struct ext2_inode * inode);
1211 extern errcode_t ext2fs_write_inode_full(ext2_filsys fs, ext2_ino_t ino,
1212 struct ext2_inode * inode,
1214 extern errcode_t ext2fs_write_inode(ext2_filsys fs, ext2_ino_t ino,
1215 struct ext2_inode * inode);
1216 extern errcode_t ext2fs_write_new_inode(ext2_filsys fs, ext2_ino_t ino,
1217 struct ext2_inode * inode);
1218 extern errcode_t ext2fs_get_blocks(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
1219 extern errcode_t ext2fs_check_directory(ext2_filsys fs, ext2_ino_t ino);
1222 extern io_manager inode_io_manager;
1223 extern errcode_t ext2fs_inode_io_intern(ext2_filsys fs, ext2_ino_t ino,
1225 extern errcode_t ext2fs_inode_io_intern2(ext2_filsys fs, ext2_ino_t ino,
1226 struct ext2_inode *inode,
1230 extern errcode_t ext2fs_check_if_mounted(const char *file, int *mount_flags);
1231 extern errcode_t ext2fs_check_mount_point(const char *device, int *mount_flags,
1232 char *mtpt, int mtlen);
1235 extern errcode_t ext2fs_punch(ext2_filsys fs, ext2_ino_t ino,
1236 struct ext2_inode *inode,
1237 char *block_buf, blk64_t start,
1241 extern errcode_t ext2fs_lookup(ext2_filsys fs, ext2_ino_t dir, const char *name,
1242 int namelen, char *buf, ext2_ino_t *inode);
1243 extern errcode_t ext2fs_namei(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1244 const char *name, ext2_ino_t *inode);
1245 errcode_t ext2fs_namei_follow(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1246 const char *name, ext2_ino_t *inode);
1247 extern errcode_t ext2fs_follow_link(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1248 ext2_ino_t inode, ext2_ino_t *res_inode);
1251 int ext2fs_native_flag(void);
1254 extern errcode_t ext2fs_new_dir_block(ext2_filsys fs, ext2_ino_t dir_ino,
1255 ext2_ino_t parent_ino, char **block);
1258 extern errcode_t ext2fs_mkdir(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t inum,
1262 extern errcode_t ext2fs_zero_blocks(ext2_filsys fs, blk_t blk, int num,
1263 blk_t *ret_blk, int *ret_count);
1264 extern errcode_t ext2fs_zero_blocks2(ext2_filsys fs, blk64_t blk, int num,
1265 blk64_t *ret_blk, int *ret_count);
1266 extern errcode_t ext2fs_create_journal_superblock(ext2_filsys fs,
1267 __u32 size, int flags,
1269 extern errcode_t ext2fs_add_journal_device(ext2_filsys fs,
1270 ext2_filsys journal_dev);
1271 extern errcode_t ext2fs_add_journal_inode(ext2_filsys fs, blk_t size,
1273 extern int ext2fs_default_journal_size(__u64 blocks);
1276 extern errcode_t ext2fs_open(const char *name, int flags, int superblock,
1277 unsigned int block_size, io_manager manager,
1278 ext2_filsys *ret_fs);
1279 extern errcode_t ext2fs_open2(const char *name, const char *io_options,
1280 int flags, int superblock,
1281 unsigned int block_size, io_manager manager,
1282 ext2_filsys *ret_fs);
1283 extern blk64_t ext2fs_descriptor_block_loc2(ext2_filsys fs,
1284 blk64_t group_block, dgrp_t i);
1285 extern blk_t ext2fs_descriptor_block_loc(ext2_filsys fs, blk_t group_block,
1287 errcode_t ext2fs_get_data_io(ext2_filsys fs, io_channel *old_io);
1288 errcode_t ext2fs_set_data_io(ext2_filsys fs, io_channel new_io);
1289 errcode_t ext2fs_rewrite_to_io(ext2_filsys fs, io_channel new_io);
1291 /* get_pathname.c */
1292 extern errcode_t ext2fs_get_pathname(ext2_filsys fs, ext2_ino_t dir, ext2_ino_t ino,
1296 errcode_t ext2fs_link(ext2_filsys fs, ext2_ino_t dir, const char *name,
1297 ext2_ino_t ino, int flags);
1298 errcode_t ext2fs_unlink(ext2_filsys fs, ext2_ino_t dir, const char *name,
1299 ext2_ino_t ino, int flags);
1302 extern errcode_t ext2fs_read_bb_inode(ext2_filsys fs,
1303 ext2_badblocks_list *bb_list);
1305 /* read_bb_file.c */
1306 extern errcode_t ext2fs_read_bb_FILE2(ext2_filsys fs, FILE *f,
1307 ext2_badblocks_list *bb_list,
1309 void (*invalid)(ext2_filsys fs,
1313 extern errcode_t ext2fs_read_bb_FILE(ext2_filsys fs, FILE *f,
1314 ext2_badblocks_list *bb_list,
1315 void (*invalid)(ext2_filsys fs,
1319 extern errcode_t ext2fs_create_resize_inode(ext2_filsys fs);
1322 extern void ext2fs_swap_ext_attr(char *to, char *from, int bufsize,
1324 extern void ext2fs_swap_ext_attr_header(struct ext2_ext_attr_header *to_header,
1325 struct ext2_ext_attr_header *from_hdr);
1326 extern void ext2fs_swap_ext_attr_entry(struct ext2_ext_attr_entry *to_entry,
1327 struct ext2_ext_attr_entry *from_entry);
1328 extern void ext2fs_swap_super(struct ext2_super_block * super);
1329 extern void ext2fs_swap_group_desc(struct ext2_group_desc *gdp);
1330 extern void ext2fs_swap_group_desc2(ext2_filsys, struct ext2_group_desc *gdp);
1331 extern void ext2fs_swap_inode_full(ext2_filsys fs, struct ext2_inode_large *t,
1332 struct ext2_inode_large *f, int hostorder,
1334 extern void ext2fs_swap_inode(ext2_filsys fs,struct ext2_inode *t,
1335 struct ext2_inode *f, int hostorder);
1338 extern int ext2fs_inode_has_valid_blocks(struct ext2_inode *inode);
1341 extern int ext2fs_parse_version_string(const char *ver_string);
1342 extern int ext2fs_get_library_version(const char **ver_string,
1343 const char **date_string);
1345 /* write_bb_file.c */
1346 extern errcode_t ext2fs_write_bb_FILE(ext2_badblocks_list bb_list,
1351 /* inline functions */
1352 extern errcode_t ext2fs_get_mem(unsigned long size, void *ptr);
1353 extern errcode_t ext2fs_get_memalign(unsigned long size,
1354 unsigned long align, void *ptr);
1355 extern errcode_t ext2fs_free_mem(void *ptr);
1356 extern errcode_t ext2fs_resize_mem(unsigned long old_size,
1357 unsigned long size, void *ptr);
1358 extern void ext2fs_mark_super_dirty(ext2_filsys fs);
1359 extern void ext2fs_mark_changed(ext2_filsys fs);
1360 extern int ext2fs_test_changed(ext2_filsys fs);
1361 extern void ext2fs_mark_valid(ext2_filsys fs);
1362 extern void ext2fs_unmark_valid(ext2_filsys fs);
1363 extern int ext2fs_test_valid(ext2_filsys fs);
1364 extern void ext2fs_mark_ib_dirty(ext2_filsys fs);
1365 extern void ext2fs_mark_bb_dirty(ext2_filsys fs);
1366 extern int ext2fs_test_ib_dirty(ext2_filsys fs);
1367 extern int ext2fs_test_bb_dirty(ext2_filsys fs);
1368 extern int ext2fs_group_of_blk(ext2_filsys fs, blk_t blk);
1369 extern int ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino);
1370 extern blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group);
1371 extern blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group);
1372 extern blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
1373 struct ext2_inode *inode);
1374 extern unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b);
1375 extern __u64 ext2fs_div64_ceil(__u64 a, __u64 b);
1378 * The actual inlined functions definitions themselves...
1380 * If NO_INLINE_FUNCS is defined, then we won't try to do inline
1383 #if (defined(INCLUDE_INLINE_FUNCS) || !defined(NO_INLINE_FUNCS))
1384 #ifdef INCLUDE_INLINE_FUNCS
1385 #define _INLINE_ extern
1388 #define _INLINE_ extern __inline__
1389 #else /* For Watcom C */
1390 #define _INLINE_ extern inline
1394 #ifndef EXT2_CUSTOM_MEMORY_ROUTINES
1399 _INLINE_ errcode_t ext2fs_get_mem(unsigned long size, void *ptr)
1405 return EXT2_ET_NO_MEMORY;
1406 memcpy(ptr, &pp, sizeof (pp));
1410 _INLINE_ errcode_t ext2fs_get_memalign(unsigned long size,
1411 unsigned long align, void *ptr)
1417 if (retval = posix_memalign((void **) ptr, align, size)) {
1418 if (retval == ENOMEM)
1419 return EXT2_ET_NO_MEMORY;
1425 _INLINE_ errcode_t ext2fs_get_memzero(unsigned long size, void *ptr)
1431 return EXT2_ET_NO_MEMORY;
1432 memset(pp, 0, size);
1433 memcpy(ptr, &pp, sizeof(pp));
1437 _INLINE_ errcode_t ext2fs_get_array(unsigned long count, unsigned long size, void *ptr)
1439 if (count && (-1UL)/count<size)
1440 return EXT2_ET_NO_MEMORY;
1441 return ext2fs_get_mem(count*size, ptr);
1444 _INLINE_ errcode_t ext2fs_get_arrayzero(unsigned long count,
1445 unsigned long size, void *ptr)
1449 if (count && (-1UL)/count<size)
1450 return EXT2_ET_NO_MEMORY;
1451 pp = calloc(count, size);
1453 return EXT2_ET_NO_MEMORY;
1454 memcpy(ptr, &pp, sizeof(pp));
1461 _INLINE_ errcode_t ext2fs_free_mem(void *ptr)
1465 memcpy(&p, ptr, sizeof(p));
1468 memcpy(ptr, &p, sizeof(p));
1475 _INLINE_ errcode_t ext2fs_resize_mem(unsigned long EXT2FS_ATTR((unused)) old_size,
1476 unsigned long size, void *ptr)
1480 /* Use "memcpy" for pointer assignments here to avoid problems
1481 * with C99 strict type aliasing rules. */
1482 memcpy(&p, ptr, sizeof(p));
1483 p = realloc(p, size);
1485 return EXT2_ET_NO_MEMORY;
1486 memcpy(ptr, &p, sizeof(p));
1489 #endif /* Custom memory routines */
1492 * Mark a filesystem superblock as dirty
1494 _INLINE_ void ext2fs_mark_super_dirty(ext2_filsys fs)
1496 fs->flags |= EXT2_FLAG_DIRTY | EXT2_FLAG_CHANGED;
1500 * Mark a filesystem as changed
1502 _INLINE_ void ext2fs_mark_changed(ext2_filsys fs)
1504 fs->flags |= EXT2_FLAG_CHANGED;
1508 * Check to see if a filesystem has changed
1510 _INLINE_ int ext2fs_test_changed(ext2_filsys fs)
1512 return (fs->flags & EXT2_FLAG_CHANGED);
1516 * Mark a filesystem as valid
1518 _INLINE_ void ext2fs_mark_valid(ext2_filsys fs)
1520 fs->flags |= EXT2_FLAG_VALID;
1524 * Mark a filesystem as NOT valid
1526 _INLINE_ void ext2fs_unmark_valid(ext2_filsys fs)
1528 fs->flags &= ~EXT2_FLAG_VALID;
1532 * Check to see if a filesystem is valid
1534 _INLINE_ int ext2fs_test_valid(ext2_filsys fs)
1536 return (fs->flags & EXT2_FLAG_VALID);
1540 * Mark the inode bitmap as dirty
1542 _INLINE_ void ext2fs_mark_ib_dirty(ext2_filsys fs)
1544 fs->flags |= EXT2_FLAG_IB_DIRTY | EXT2_FLAG_CHANGED;
1548 * Mark the block bitmap as dirty
1550 _INLINE_ void ext2fs_mark_bb_dirty(ext2_filsys fs)
1552 fs->flags |= EXT2_FLAG_BB_DIRTY | EXT2_FLAG_CHANGED;
1556 * Check to see if a filesystem's inode bitmap is dirty
1558 _INLINE_ int ext2fs_test_ib_dirty(ext2_filsys fs)
1560 return (fs->flags & EXT2_FLAG_IB_DIRTY);
1564 * Check to see if a filesystem's block bitmap is dirty
1566 _INLINE_ int ext2fs_test_bb_dirty(ext2_filsys fs)
1568 return (fs->flags & EXT2_FLAG_BB_DIRTY);
1572 * Return the group # of a block
1574 _INLINE_ int ext2fs_group_of_blk(ext2_filsys fs, blk_t blk)
1576 return ext2fs_group_of_blk2(fs, blk);
1579 * Return the group # of an inode number
1581 _INLINE_ int ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino)
1583 return (ino - 1) / fs->super->s_inodes_per_group;
1587 * Return the first block (inclusive) in a group
1589 _INLINE_ blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group)
1591 return ext2fs_group_first_block2(fs, group);
1595 * Return the last block (inclusive) in a group
1597 _INLINE_ blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group)
1599 return ext2fs_group_last_block2(fs, group);
1602 _INLINE_ blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
1603 struct ext2_inode *inode)
1605 return ext2fs_inode_data_blocks2(fs, inode);
1609 * This is an efficient, overflow safe way of calculating ceil((1.0 * a) / b)
1611 _INLINE_ unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b)
1615 return ((a - 1) / b) + 1;
1618 _INLINE_ __u64 ext2fs_div64_ceil(__u64 a, __u64 b)
1622 return ((a - 1) / b) + 1;
1632 #endif /* _EXT2FS_EXT2FS_H */