4 * Copyright (C) 1993, 1994, 1995, 1996 Theodore Ts'o.
7 * This file may be redistributed under the terms of the GNU Public
12 #ifndef _EXT2FS_EXT2FS_H
13 #define _EXT2FS_EXT2FS_H
16 #define EXT2FS_ATTR(x)
23 * Where the master copy of the superblock is located, and how big
24 * superblocks are supposed to be. We define SUPERBLOCK_SIZE because
25 * the size of the superblock structure is not necessarily trustworthy
26 * (some versions have the padding set up so that the superblock is
29 #define SUPERBLOCK_OFFSET 1024
30 #define SUPERBLOCK_SIZE 1024
33 * The last ext2fs revision level that this version of the library is
36 #define EXT2_LIB_CURRENT_REV EXT2_DYNAMIC_REV
38 #ifdef HAVE_SYS_TYPES_H
39 #include <sys/types.h>
45 #include "ext2_types.h"
48 typedef __u32 ext2_ino_t;
51 typedef __u32 ext2_off_t;
52 typedef __s64 e2_blkcnt_t;
53 typedef __u32 ext2_dirhash_t;
58 typedef struct struct_ext2_filsys *ext2_filsys;
60 struct ext2fs_struct_generic_bitmap {
67 errcode_t base_error_code;
71 #define EXT2FS_MARK_ERROR 0
72 #define EXT2FS_UNMARK_ERROR 1
73 #define EXT2FS_TEST_ERROR 2
75 typedef struct ext2fs_struct_generic_bitmap *ext2fs_generic_bitmap;
76 typedef struct ext2fs_struct_generic_bitmap *ext2fs_inode_bitmap;
77 typedef struct ext2fs_struct_generic_bitmap *ext2fs_block_bitmap;
79 #define EXT2_FIRST_INODE(s) EXT2_FIRST_INO(s)
82 * badblocks list definitions
85 typedef struct ext2_struct_u32_list *ext2_badblocks_list;
86 typedef struct ext2_struct_u32_iterate *ext2_badblocks_iterate;
88 typedef struct ext2_struct_u32_list *ext2_u32_list;
89 typedef struct ext2_struct_u32_iterate *ext2_u32_iterate;
92 typedef struct ext2_struct_u32_list *badblocks_list;
93 typedef struct ext2_struct_u32_iterate *badblocks_iterate;
95 #define BADBLOCKS_FLAG_DIRTY 1
98 * ext2_dblist structure and abstractions (see dblist.c)
100 struct ext2_db_entry {
106 typedef struct ext2_struct_dblist *ext2_dblist;
108 #define DBLIST_ABORT 1
111 * ext2_fileio definitions
114 #define EXT2_FILE_WRITE 0x0001
115 #define EXT2_FILE_CREATE 0x0002
117 #define EXT2_FILE_MASK 0x00FF
119 #define EXT2_FILE_BUF_DIRTY 0x4000
120 #define EXT2_FILE_BUF_VALID 0x2000
122 typedef struct ext2_file *ext2_file_t;
124 #define EXT2_SEEK_SET 0
125 #define EXT2_SEEK_CUR 1
126 #define EXT2_SEEK_END 2
129 * Flags for the ext2_filsys structure and for ext2fs_open()
131 #define EXT2_FLAG_RW 0x01
132 #define EXT2_FLAG_CHANGED 0x02
133 #define EXT2_FLAG_DIRTY 0x04
134 #define EXT2_FLAG_VALID 0x08
135 #define EXT2_FLAG_IB_DIRTY 0x10
136 #define EXT2_FLAG_BB_DIRTY 0x20
137 #define EXT2_FLAG_SWAP_BYTES 0x40
138 #define EXT2_FLAG_SWAP_BYTES_READ 0x80
139 #define EXT2_FLAG_SWAP_BYTES_WRITE 0x100
140 #define EXT2_FLAG_MASTER_SB_ONLY 0x200
141 #define EXT2_FLAG_FORCE 0x400
142 #define EXT2_FLAG_SUPER_ONLY 0x800
143 #define EXT2_FLAG_JOURNAL_DEV_OK 0x1000
144 #define EXT2_FLAG_IMAGE_FILE 0x2000
147 * Special flag in the ext2 inode i_flag field that means that this is
148 * a new inode. (So that ext2_write_inode() can clear extra fields.)
150 #define EXT2_NEW_INODE_FL 0x80000000
153 * Flags for mkjournal
155 * EXT2_MKJOURNAL_V1_SUPER Make a (deprecated) V1 journal superblock
157 #define EXT2_MKJOURNAL_V1_SUPER 0x0000001
159 struct struct_ext2_filsys {
164 struct ext2_super_block * super;
165 unsigned int blocksize;
167 dgrp_t group_desc_count;
168 unsigned long desc_blocks;
169 struct ext2_group_desc * group_desc;
170 int inode_blocks_per_group;
171 ext2fs_inode_bitmap inode_map;
172 ext2fs_block_bitmap block_map;
173 errcode_t (*get_blocks)(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
174 errcode_t (*check_directory)(ext2_filsys fs, ext2_ino_t ino);
175 errcode_t (*write_bitmaps)(ext2_filsys fs);
176 errcode_t (*read_inode)(ext2_filsys fs, ext2_ino_t ino,
177 struct ext2_inode *inode);
178 errcode_t (*write_inode)(ext2_filsys fs, ext2_ino_t ino,
179 struct ext2_inode *inode);
180 ext2_badblocks_list badblocks;
182 __u32 stride; /* for mke2fs */
183 struct ext2_super_block * orig_super;
184 struct ext2_image_hdr * image_header;
187 * Reserved for future expansion
192 * Reserved for the use of the calling application.
199 struct ext2_inode_cache *icache;
206 * Return flags for the block iterator functions
208 #define BLOCK_CHANGED 1
209 #define BLOCK_ABORT 2
210 #define BLOCK_ERROR 4
213 * Block interate flags
215 * BLOCK_FLAG_APPEND, or BLOCK_FLAG_HOLE, indicates that the interator
216 * function should be called on blocks where the block number is zero.
217 * This is used by ext2fs_expand_dir() to be able to add a new block
218 * to an inode. It can also be used for programs that want to be able
219 * to deal with files that contain "holes".
221 * BLOCK_FLAG_TRAVERSE indicates that the iterator function for the
222 * indirect, doubly indirect, etc. blocks should be called after all
223 * of the blocks containined in the indirect blocks are processed.
224 * This is useful if you are going to be deallocating blocks from an
227 * BLOCK_FLAG_DATA_ONLY indicates that the iterator function should be
228 * called for data blocks only.
230 * BLOCK_FLAG_NO_LARGE is for internal use only. It informs
231 * ext2fs_block_iterate2 that large files won't be accepted.
233 #define BLOCK_FLAG_APPEND 1
234 #define BLOCK_FLAG_HOLE 1
235 #define BLOCK_FLAG_DEPTH_TRAVERSE 2
236 #define BLOCK_FLAG_DATA_ONLY 4
238 #define BLOCK_FLAG_NO_LARGE 0x1000
241 * Magic "block count" return values for the block iterator function.
243 #define BLOCK_COUNT_IND (-1)
244 #define BLOCK_COUNT_DIND (-2)
245 #define BLOCK_COUNT_TIND (-3)
246 #define BLOCK_COUNT_TRANSLATOR (-4)
250 * Flags for ext2fs_move_blocks
252 #define EXT2_BMOVE_GET_DBLIST 0x0001
253 #define EXT2_BMOVE_DEBUG 0x0002
257 * Flags for directory block reading and writing functions
259 #define EXT2_DIRBLOCK_V2_STRUCT 0x0001
262 * Return flags for the directory iterator functions
264 #define DIRENT_CHANGED 1
265 #define DIRENT_ABORT 2
266 #define DIRENT_ERROR 3
269 * Directory iterator flags
272 #define DIRENT_FLAG_INCLUDE_EMPTY 1
273 #define DIRENT_FLAG_INCLUDE_REMOVED 2
275 #define DIRENT_DOT_FILE 1
276 #define DIRENT_DOT_DOT_FILE 2
277 #define DIRENT_OTHER_FILE 3
278 #define DIRENT_DELETED_FILE 4
281 * Inode scan definitions
283 typedef struct ext2_struct_inode_scan *ext2_inode_scan;
288 #define EXT2_SF_CHK_BADBLOCKS 0x0001
289 #define EXT2_SF_BAD_INODE_BLK 0x0002
290 #define EXT2_SF_BAD_EXTRA_BYTES 0x0004
291 #define EXT2_SF_SKIP_MISSING_ITABLE 0x0008
294 * ext2fs_check_if_mounted flags
296 #define EXT2_MF_MOUNTED 1
297 #define EXT2_MF_ISROOT 2
298 #define EXT2_MF_READONLY 4
299 #define EXT2_MF_SWAP 8
300 #define EXT2_MF_BUSY 16
303 * Ext2/linux mode flags. We define them here so that we don't need
304 * to depend on the OS's sys/stat.h, since we may be compiling on a
307 #define LINUX_S_IFMT 00170000
308 #define LINUX_S_IFSOCK 0140000
309 #define LINUX_S_IFLNK 0120000
310 #define LINUX_S_IFREG 0100000
311 #define LINUX_S_IFBLK 0060000
312 #define LINUX_S_IFDIR 0040000
313 #define LINUX_S_IFCHR 0020000
314 #define LINUX_S_IFIFO 0010000
315 #define LINUX_S_ISUID 0004000
316 #define LINUX_S_ISGID 0002000
317 #define LINUX_S_ISVTX 0001000
319 #define LINUX_S_IRWXU 00700
320 #define LINUX_S_IRUSR 00400
321 #define LINUX_S_IWUSR 00200
322 #define LINUX_S_IXUSR 00100
324 #define LINUX_S_IRWXG 00070
325 #define LINUX_S_IRGRP 00040
326 #define LINUX_S_IWGRP 00020
327 #define LINUX_S_IXGRP 00010
329 #define LINUX_S_IRWXO 00007
330 #define LINUX_S_IROTH 00004
331 #define LINUX_S_IWOTH 00002
332 #define LINUX_S_IXOTH 00001
334 #define LINUX_S_ISLNK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFLNK)
335 #define LINUX_S_ISREG(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFREG)
336 #define LINUX_S_ISDIR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFDIR)
337 #define LINUX_S_ISCHR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFCHR)
338 #define LINUX_S_ISBLK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFBLK)
339 #define LINUX_S_ISFIFO(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFIFO)
340 #define LINUX_S_ISSOCK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFSOCK)
343 * ext2 size of an inode
345 #define EXT2_I_SIZE(i) ((i)->i_size | ((__u64) (i)->i_size_high << 32))
348 * ext2_icount_t abstraction
350 #define EXT2_ICOUNT_OPT_INCREMENT 0x01
352 typedef struct ext2_icount *ext2_icount_t;
355 * Flags for ext2fs_bmap
357 #define BMAP_ALLOC 0x0001
358 #define BMAP_SET 0x0002
361 * Flags for imager.c functions
363 #define IMAGER_FLAG_INODEMAP 1
364 #define IMAGER_FLAG_SPARSEWRITE 2
367 * For checking structure magic numbers...
370 #define EXT2_CHECK_MAGIC(struct, code) \
371 if ((struct)->magic != (code)) return (code)
375 * For ext2 compression support
377 #define EXT2FS_COMPRESSED_BLKADDR ((blk_t) 0xffffffff)
378 #define HOLE_BLKADDR(_b) ((_b) == 0 || (_b) == EXT2FS_COMPRESSED_BLKADDR)
381 * Features supported by this version of the library
383 #define EXT2_LIB_FEATURE_COMPAT_SUPP (EXT2_FEATURE_COMPAT_DIR_PREALLOC|\
384 EXT2_FEATURE_COMPAT_IMAGIC_INODES|\
385 EXT3_FEATURE_COMPAT_HAS_JOURNAL|\
386 EXT2_FEATURE_COMPAT_RESIZE_INODE|\
387 EXT2_FEATURE_COMPAT_DIR_INDEX|\
388 EXT2_FEATURE_COMPAT_EXT_ATTR)
390 /* This #ifdef is temporary until compression is fully supported */
391 #ifdef ENABLE_COMPRESSION
392 #ifndef I_KNOW_THAT_COMPRESSION_IS_EXPERIMENTAL
393 /* If the below warning bugs you, then have
394 `CPPFLAGS=-DI_KNOW_THAT_COMPRESSION_IS_EXPERIMENTAL' in your
395 environment at configure time. */
396 #warning "Compression support is experimental"
398 #define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\
399 EXT2_FEATURE_INCOMPAT_COMPRESSION|\
400 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\
401 EXT2_FEATURE_INCOMPAT_META_BG|\
402 EXT3_FEATURE_INCOMPAT_RECOVER)
404 #define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\
405 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\
406 EXT2_FEATURE_INCOMPAT_META_BG|\
407 EXT3_FEATURE_INCOMPAT_RECOVER)
409 #define EXT2_LIB_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|\
410 EXT2_FEATURE_RO_COMPAT_LARGE_FILE)
412 * function prototypes
416 extern errcode_t ext2fs_new_inode(ext2_filsys fs, ext2_ino_t dir, int mode,
417 ext2fs_inode_bitmap map, ext2_ino_t *ret);
418 extern errcode_t ext2fs_new_block(ext2_filsys fs, blk_t goal,
419 ext2fs_block_bitmap map, blk_t *ret);
420 extern errcode_t ext2fs_get_free_blocks(ext2_filsys fs, blk_t start,
421 blk_t finish, int num,
422 ext2fs_block_bitmap map,
424 extern errcode_t ext2fs_alloc_block(ext2_filsys fs, blk_t goal,
425 char *block_buf, blk_t *ret);
428 extern int ext2fs_reserve_super_and_bgd(ext2_filsys fs,
430 ext2fs_block_bitmap bmap);
433 void ext2fs_inode_alloc_stats(ext2_filsys fs, ext2_ino_t ino, int inuse);
434 void ext2fs_inode_alloc_stats2(ext2_filsys fs, ext2_ino_t ino,
435 int inuse, int isdir);
436 void ext2fs_block_alloc_stats(ext2_filsys fs, blk_t blk, int inuse);
439 extern errcode_t ext2fs_allocate_tables(ext2_filsys fs);
440 extern errcode_t ext2fs_allocate_group_table(ext2_filsys fs, dgrp_t group,
441 ext2fs_block_bitmap bmap);
444 extern errcode_t ext2fs_u32_list_create(ext2_u32_list *ret, int size);
445 extern errcode_t ext2fs_u32_list_add(ext2_u32_list bb, __u32 blk);
446 extern int ext2fs_u32_list_find(ext2_u32_list bb, __u32 blk);
447 extern int ext2fs_u32_list_test(ext2_u32_list bb, blk_t blk);
448 extern errcode_t ext2fs_u32_list_iterate_begin(ext2_u32_list bb,
449 ext2_u32_iterate *ret);
450 extern int ext2fs_u32_list_iterate(ext2_u32_iterate iter, blk_t *blk);
451 extern void ext2fs_u32_list_iterate_end(ext2_u32_iterate iter);
452 extern errcode_t ext2fs_u32_copy(ext2_u32_list src, ext2_u32_list *dest);
453 extern int ext2fs_u32_list_equal(ext2_u32_list bb1, ext2_u32_list bb2);
455 extern errcode_t ext2fs_badblocks_list_create(ext2_badblocks_list *ret,
457 extern errcode_t ext2fs_badblocks_list_add(ext2_badblocks_list bb,
459 extern int ext2fs_badblocks_list_test(ext2_badblocks_list bb,
461 extern int ext2fs_u32_list_del(ext2_u32_list bb, __u32 blk);
462 extern void ext2fs_badblocks_list_del(ext2_u32_list bb, __u32 blk);
464 ext2fs_badblocks_list_iterate_begin(ext2_badblocks_list bb,
465 ext2_badblocks_iterate *ret);
466 extern int ext2fs_badblocks_list_iterate(ext2_badblocks_iterate iter,
468 extern void ext2fs_badblocks_list_iterate_end(ext2_badblocks_iterate iter);
469 extern errcode_t ext2fs_badblocks_copy(ext2_badblocks_list src,
470 ext2_badblocks_list *dest);
471 extern int ext2fs_badblocks_equal(ext2_badblocks_list bb1,
472 ext2_badblocks_list bb2);
473 extern int ext2fs_u32_list_count(ext2_u32_list bb);
476 extern errcode_t badblocks_list_create(badblocks_list *ret, int size);
477 extern errcode_t badblocks_list_add(badblocks_list bb, blk_t blk);
478 extern int badblocks_list_test(badblocks_list bb, blk_t blk);
479 extern errcode_t badblocks_list_iterate_begin(badblocks_list bb,
480 badblocks_iterate *ret);
481 extern int badblocks_list_iterate(badblocks_iterate iter, blk_t *blk);
482 extern void badblocks_list_iterate_end(badblocks_iterate iter);
483 extern void badblocks_list_free(badblocks_list bb);
486 extern errcode_t ext2fs_update_bb_inode(ext2_filsys fs,
487 ext2_badblocks_list bb_list);
490 extern errcode_t ext2fs_write_inode_bitmap(ext2_filsys fs);
491 extern errcode_t ext2fs_write_block_bitmap (ext2_filsys fs);
492 extern errcode_t ext2fs_read_inode_bitmap (ext2_filsys fs);
493 extern errcode_t ext2fs_read_block_bitmap(ext2_filsys fs);
494 extern errcode_t ext2fs_allocate_generic_bitmap(__u32 start,
498 ext2fs_generic_bitmap *ret);
499 extern errcode_t ext2fs_allocate_block_bitmap(ext2_filsys fs,
501 ext2fs_block_bitmap *ret);
502 extern errcode_t ext2fs_allocate_inode_bitmap(ext2_filsys fs,
504 ext2fs_inode_bitmap *ret);
505 extern errcode_t ext2fs_fudge_inode_bitmap_end(ext2fs_inode_bitmap bitmap,
506 ext2_ino_t end, ext2_ino_t *oend);
507 extern errcode_t ext2fs_fudge_block_bitmap_end(ext2fs_block_bitmap bitmap,
508 blk_t end, blk_t *oend);
509 extern void ext2fs_clear_inode_bitmap(ext2fs_inode_bitmap bitmap);
510 extern void ext2fs_clear_block_bitmap(ext2fs_block_bitmap bitmap);
511 extern errcode_t ext2fs_read_bitmaps(ext2_filsys fs);
512 extern errcode_t ext2fs_write_bitmaps(ext2_filsys fs);
515 extern errcode_t ext2fs_block_iterate(ext2_filsys fs,
519 int (*func)(ext2_filsys fs,
524 errcode_t ext2fs_block_iterate2(ext2_filsys fs,
528 int (*func)(ext2_filsys fs,
530 e2_blkcnt_t blockcnt,
537 extern errcode_t ext2fs_bmap(ext2_filsys fs, ext2_ino_t ino,
538 struct ext2_inode *inode,
539 char *block_buf, int bmap_flags,
540 blk_t block, blk_t *phys_blk);
545 extern errcode_t ext2fs_move_blocks(ext2_filsys fs,
546 ext2fs_block_bitmap reserve,
547 ext2fs_block_bitmap alloc_map,
552 extern errcode_t ext2fs_check_desc(ext2_filsys fs);
555 extern errcode_t ext2fs_close(ext2_filsys fs);
556 extern errcode_t ext2fs_flush(ext2_filsys fs);
557 extern int ext2fs_bg_has_super(ext2_filsys fs, int group_block);
558 extern int ext2fs_super_and_bgd_loc(ext2_filsys fs,
560 blk_t *ret_super_blk,
561 blk_t *ret_old_desc_blk,
562 blk_t *ret_new_desc_blk,
564 extern void ext2fs_update_dynamic_rev(ext2_filsys fs);
567 extern errcode_t ext2fs_compare_block_bitmap(ext2fs_block_bitmap bm1,
568 ext2fs_block_bitmap bm2);
569 extern errcode_t ext2fs_compare_inode_bitmap(ext2fs_inode_bitmap bm1,
570 ext2fs_inode_bitmap bm2);
574 extern errcode_t ext2fs_get_num_dirs(ext2_filsys fs, ext2_ino_t *ret_num_dirs);
575 extern errcode_t ext2fs_init_dblist(ext2_filsys fs, ext2_dblist *ret_dblist);
576 extern errcode_t ext2fs_add_dir_block(ext2_dblist dblist, ext2_ino_t ino,
577 blk_t blk, int blockcnt);
578 extern void ext2fs_dblist_sort(ext2_dblist dblist,
579 int (*sortfunc)(const void *,
581 extern errcode_t ext2fs_dblist_iterate(ext2_dblist dblist,
582 int (*func)(ext2_filsys fs, struct ext2_db_entry *db_info,
585 extern errcode_t ext2fs_set_dir_block(ext2_dblist dblist, ext2_ino_t ino,
586 blk_t blk, int blockcnt);
587 extern errcode_t ext2fs_copy_dblist(ext2_dblist src,
589 extern int ext2fs_dblist_count(ext2_dblist dblist);
593 ext2fs_dblist_dir_iterate(ext2_dblist dblist,
596 int (*func)(ext2_ino_t dir,
598 struct ext2_dir_entry *dirent,
606 extern errcode_t ext2fs_read_dir_block(ext2_filsys fs, blk_t block,
608 extern errcode_t ext2fs_read_dir_block2(ext2_filsys fs, blk_t block,
609 void *buf, int flags);
610 extern errcode_t ext2fs_write_dir_block(ext2_filsys fs, blk_t block,
612 extern errcode_t ext2fs_write_dir_block2(ext2_filsys fs, blk_t block,
613 void *buf, int flags);
616 extern errcode_t ext2fs_dirhash(int version, const char *name, int len,
618 ext2_dirhash_t *ret_hash,
619 ext2_dirhash_t *ret_minor_hash);
623 extern errcode_t ext2fs_dir_iterate(ext2_filsys fs,
627 int (*func)(struct ext2_dir_entry *dirent,
633 extern errcode_t ext2fs_dir_iterate2(ext2_filsys fs,
637 int (*func)(ext2_ino_t dir,
639 struct ext2_dir_entry *dirent,
647 extern errcode_t ext2fs_dup_handle(ext2_filsys src, ext2_filsys *dest);
650 extern errcode_t ext2fs_expand_dir(ext2_filsys fs, ext2_ino_t dir);
653 extern errcode_t ext2fs_read_ext_attr(ext2_filsys fs, blk_t block, void *buf);
654 extern errcode_t ext2fs_write_ext_attr(ext2_filsys fs, blk_t block,
656 extern errcode_t ext2fs_adjust_ea_refcount(ext2_filsys fs, blk_t blk,
658 int adjust, __u32 *newcount);
661 extern errcode_t ext2fs_file_open2(ext2_filsys fs, ext2_ino_t ino,
662 struct ext2_inode *inode,
663 int flags, ext2_file_t *ret);
664 extern errcode_t ext2fs_file_open(ext2_filsys fs, ext2_ino_t ino,
665 int flags, ext2_file_t *ret);
666 extern ext2_filsys ext2fs_file_get_fs(ext2_file_t file);
667 extern errcode_t ext2fs_file_close(ext2_file_t file);
668 extern errcode_t ext2fs_file_flush(ext2_file_t file);
669 extern errcode_t ext2fs_file_read(ext2_file_t file, void *buf,
670 unsigned int wanted, unsigned int *got);
671 extern errcode_t ext2fs_file_write(ext2_file_t file, const void *buf,
672 unsigned int nbytes, unsigned int *written);
673 extern errcode_t ext2fs_file_llseek(ext2_file_t file, __u64 offset,
674 int whence, __u64 *ret_pos);
675 extern errcode_t ext2fs_file_lseek(ext2_file_t file, ext2_off_t offset,
676 int whence, ext2_off_t *ret_pos);
677 errcode_t ext2fs_file_get_lsize(ext2_file_t file, __u64 *ret_size);
678 extern ext2_off_t ext2fs_file_get_size(ext2_file_t file);
679 extern errcode_t ext2fs_file_set_size(ext2_file_t file, ext2_off_t size);
682 extern char *ext2fs_find_block_device(dev_t device);
685 extern errcode_t ext2fs_sync_device(int fd, int flushb);
688 extern void ext2fs_free(ext2_filsys fs);
689 extern void ext2fs_free_generic_bitmap(ext2fs_inode_bitmap bitmap);
690 extern void ext2fs_free_block_bitmap(ext2fs_block_bitmap bitmap);
691 extern void ext2fs_free_inode_bitmap(ext2fs_inode_bitmap bitmap);
692 extern void ext2fs_free_dblist(ext2_dblist dblist);
693 extern void ext2fs_badblocks_list_free(ext2_badblocks_list bb);
694 extern void ext2fs_u32_list_free(ext2_u32_list bb);
697 extern errcode_t ext2fs_get_device_size(const char *file, int blocksize,
701 errcode_t ext2fs_get_device_sectsize(const char *file, int *sectsize);
704 extern errcode_t ext2fs_image_inode_write(ext2_filsys fs, int fd, int flags);
705 extern errcode_t ext2fs_image_inode_read(ext2_filsys fs, int fd, int flags);
706 extern errcode_t ext2fs_image_super_write(ext2_filsys fs, int fd, int flags);
707 extern errcode_t ext2fs_image_super_read(ext2_filsys fs, int fd, int flags);
708 extern errcode_t ext2fs_image_bitmap_write(ext2_filsys fs, int fd, int flags);
709 extern errcode_t ext2fs_image_bitmap_read(ext2_filsys fs, int fd, int flags);
712 errcode_t ext2fs_read_ind_block(ext2_filsys fs, blk_t blk, void *buf);
713 errcode_t ext2fs_write_ind_block(ext2_filsys fs, blk_t blk, void *buf);
716 extern errcode_t ext2fs_initialize(const char *name, int flags,
717 struct ext2_super_block *param,
718 io_manager manager, ext2_filsys *ret_fs);
721 extern void ext2fs_free_icount(ext2_icount_t icount);
722 extern errcode_t ext2fs_create_icount2(ext2_filsys fs, int flags,
724 ext2_icount_t hint, ext2_icount_t *ret);
725 extern errcode_t ext2fs_create_icount(ext2_filsys fs, int flags,
728 extern errcode_t ext2fs_icount_fetch(ext2_icount_t icount, ext2_ino_t ino,
730 extern errcode_t ext2fs_icount_increment(ext2_icount_t icount, ext2_ino_t ino,
732 extern errcode_t ext2fs_icount_decrement(ext2_icount_t icount, ext2_ino_t ino,
734 extern errcode_t ext2fs_icount_store(ext2_icount_t icount, ext2_ino_t ino,
736 extern ext2_ino_t ext2fs_get_icount_size(ext2_icount_t icount);
737 errcode_t ext2fs_icount_validate(ext2_icount_t icount, FILE *);
740 extern errcode_t ext2fs_flush_icache(ext2_filsys fs);
741 extern errcode_t ext2fs_get_next_inode_full(ext2_inode_scan scan,
743 struct ext2_inode *inode,
745 extern errcode_t ext2fs_open_inode_scan(ext2_filsys fs, int buffer_blocks,
746 ext2_inode_scan *ret_scan);
747 extern void ext2fs_close_inode_scan(ext2_inode_scan scan);
748 extern errcode_t ext2fs_get_next_inode(ext2_inode_scan scan, ext2_ino_t *ino,
749 struct ext2_inode *inode);
750 extern errcode_t ext2fs_inode_scan_goto_blockgroup(ext2_inode_scan scan,
752 extern void ext2fs_set_inode_callback
753 (ext2_inode_scan scan,
754 errcode_t (*done_group)(ext2_filsys fs,
757 void *done_group_data);
758 extern int ext2fs_inode_scan_flags(ext2_inode_scan scan, int set_flags,
760 extern errcode_t ext2fs_read_inode_full(ext2_filsys fs, ext2_ino_t ino,
761 struct ext2_inode * inode,
763 extern errcode_t ext2fs_read_inode (ext2_filsys fs, ext2_ino_t ino,
764 struct ext2_inode * inode);
765 extern errcode_t ext2fs_write_inode_full(ext2_filsys fs, ext2_ino_t ino,
766 struct ext2_inode * inode,
768 extern errcode_t ext2fs_write_inode(ext2_filsys fs, ext2_ino_t ino,
769 struct ext2_inode * inode);
770 extern errcode_t ext2fs_write_new_inode(ext2_filsys fs, ext2_ino_t ino,
771 struct ext2_inode * inode);
772 extern errcode_t ext2fs_get_blocks(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
773 extern errcode_t ext2fs_check_directory(ext2_filsys fs, ext2_ino_t ino);
776 extern io_manager inode_io_manager;
777 extern errcode_t ext2fs_inode_io_intern(ext2_filsys fs, ext2_ino_t ino,
779 extern errcode_t ext2fs_inode_io_intern2(ext2_filsys fs, ext2_ino_t ino,
780 struct ext2_inode *inode,
784 extern errcode_t ext2fs_check_if_mounted(const char *file, int *mount_flags);
785 extern errcode_t ext2fs_check_mount_point(const char *device, int *mount_flags,
786 char *mtpt, int mtlen);
789 extern errcode_t ext2fs_lookup(ext2_filsys fs, ext2_ino_t dir, const char *name,
790 int namelen, char *buf, ext2_ino_t *inode);
791 extern errcode_t ext2fs_namei(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
792 const char *name, ext2_ino_t *inode);
793 errcode_t ext2fs_namei_follow(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
794 const char *name, ext2_ino_t *inode);
795 extern errcode_t ext2fs_follow_link(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
796 ext2_ino_t inode, ext2_ino_t *res_inode);
799 int ext2fs_native_flag(void);
802 extern errcode_t ext2fs_new_dir_block(ext2_filsys fs, ext2_ino_t dir_ino,
803 ext2_ino_t parent_ino, char **block);
806 extern errcode_t ext2fs_mkdir(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t inum,
810 extern errcode_t ext2fs_create_journal_superblock(ext2_filsys fs,
811 __u32 size, int flags,
813 extern errcode_t ext2fs_add_journal_device(ext2_filsys fs,
814 ext2_filsys journal_dev);
815 extern errcode_t ext2fs_add_journal_inode(ext2_filsys fs, blk_t size,
819 extern errcode_t ext2fs_open(const char *name, int flags, int superblock,
820 unsigned int block_size, io_manager manager,
821 ext2_filsys *ret_fs);
822 extern errcode_t ext2fs_open2(const char *name, const char *io_options,
823 int flags, int superblock,
824 unsigned int block_size, io_manager manager,
825 ext2_filsys *ret_fs);
826 extern blk_t ext2fs_descriptor_block_loc(ext2_filsys fs, blk_t group_block,
828 errcode_t ext2fs_get_data_io(ext2_filsys fs, io_channel *old_io);
829 errcode_t ext2fs_set_data_io(ext2_filsys fs, io_channel new_io);
830 errcode_t ext2fs_rewrite_to_io(ext2_filsys fs, io_channel new_io);
833 extern errcode_t ext2fs_get_pathname(ext2_filsys fs, ext2_ino_t dir, ext2_ino_t ino,
837 errcode_t ext2fs_link(ext2_filsys fs, ext2_ino_t dir, const char *name,
838 ext2_ino_t ino, int flags);
839 errcode_t ext2fs_unlink(ext2_filsys fs, ext2_ino_t dir, const char *name,
840 ext2_ino_t ino, int flags);
843 extern errcode_t ext2fs_read_bb_inode(ext2_filsys fs,
844 ext2_badblocks_list *bb_list);
847 extern errcode_t ext2fs_read_bb_FILE2(ext2_filsys fs, FILE *f,
848 ext2_badblocks_list *bb_list,
850 void (*invalid)(ext2_filsys fs,
854 extern errcode_t ext2fs_read_bb_FILE(ext2_filsys fs, FILE *f,
855 ext2_badblocks_list *bb_list,
856 void (*invalid)(ext2_filsys fs,
860 extern errcode_t ext2fs_create_resize_inode(ext2_filsys fs);
863 extern errcode_t ext2fs_resize_generic_bitmap(__u32 new_end,
865 ext2fs_generic_bitmap bmap);
866 extern errcode_t ext2fs_resize_inode_bitmap(__u32 new_end, __u32 new_real_end,
867 ext2fs_inode_bitmap bmap);
868 extern errcode_t ext2fs_resize_block_bitmap(__u32 new_end, __u32 new_real_end,
869 ext2fs_block_bitmap bmap);
870 extern errcode_t ext2fs_copy_bitmap(ext2fs_generic_bitmap src,
871 ext2fs_generic_bitmap *dest);
874 extern void ext2fs_swap_ext_attr(char *to, char *from, int bufsize,
876 extern void ext2fs_swap_super(struct ext2_super_block * super);
877 extern void ext2fs_swap_group_desc(struct ext2_group_desc *gdp);
878 extern void ext2fs_swap_inode_full(ext2_filsys fs, struct ext2_inode_large *t,
879 struct ext2_inode_large *f, int hostorder,
881 extern void ext2fs_swap_inode(ext2_filsys fs,struct ext2_inode *t,
882 struct ext2_inode *f, int hostorder);
885 extern int ext2fs_inode_has_valid_blocks(struct ext2_inode *inode);
888 extern int ext2fs_parse_version_string(const char *ver_string);
889 extern int ext2fs_get_library_version(const char **ver_string,
890 const char **date_string);
892 /* write_bb_file.c */
893 extern errcode_t ext2fs_write_bb_FILE(ext2_badblocks_list bb_list,
898 /* inline functions */
899 extern errcode_t ext2fs_get_mem(unsigned long size, void *ptr);
900 extern errcode_t ext2fs_free_mem(void *ptr);
901 extern errcode_t ext2fs_resize_mem(unsigned long old_size,
902 unsigned long size, void *ptr);
903 extern void ext2fs_mark_super_dirty(ext2_filsys fs);
904 extern void ext2fs_mark_changed(ext2_filsys fs);
905 extern int ext2fs_test_changed(ext2_filsys fs);
906 extern void ext2fs_mark_valid(ext2_filsys fs);
907 extern void ext2fs_unmark_valid(ext2_filsys fs);
908 extern int ext2fs_test_valid(ext2_filsys fs);
909 extern void ext2fs_mark_ib_dirty(ext2_filsys fs);
910 extern void ext2fs_mark_bb_dirty(ext2_filsys fs);
911 extern int ext2fs_test_ib_dirty(ext2_filsys fs);
912 extern int ext2fs_test_bb_dirty(ext2_filsys fs);
913 extern int ext2fs_group_of_blk(ext2_filsys fs, blk_t blk);
914 extern int ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino);
915 extern blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
916 struct ext2_inode *inode);
922 #endif /* _EXT2FS_EXT2FS_H */