1 /* vi: set sw=4 ts=4: */
5 * Copyright (C) 1993, 1994, 1995, 1996 Theodore Ts'o.
8 * This file may be redistributed under the terms of the GNU Public
13 #ifndef _EXT2FS_EXT2FS_H
14 #define _EXT2FS_EXT2FS_H
17 #define EXT2FS_ATTR(x)
24 * Where the master copy of the superblock is located, and how big
25 * superblocks are supposed to be. We define SUPERBLOCK_SIZE because
26 * the size of the superblock structure is not necessarily trustworthy
27 * (some versions have the padding set up so that the superblock is
30 #define SUPERBLOCK_OFFSET 1024
31 #define SUPERBLOCK_SIZE 1024
34 * The last ext2fs revision level that this version of the library is
37 #define EXT2_LIB_CURRENT_REV EXT2_DYNAMIC_REV
39 #ifdef HAVE_SYS_TYPES_H
40 #include <sys/types.h>
46 #include "ext2_types.h"
49 typedef __u32 ext2_ino_t;
52 typedef __u32 ext2_off_t;
53 typedef __s64 e2_blkcnt_t;
54 typedef __u32 ext2_dirhash_t;
59 typedef struct struct_ext2_filsys *ext2_filsys;
61 struct ext2fs_struct_generic_bitmap {
68 errcode_t base_error_code;
72 #define EXT2FS_MARK_ERROR 0
73 #define EXT2FS_UNMARK_ERROR 1
74 #define EXT2FS_TEST_ERROR 2
76 typedef struct ext2fs_struct_generic_bitmap *ext2fs_generic_bitmap;
77 typedef struct ext2fs_struct_generic_bitmap *ext2fs_inode_bitmap;
78 typedef struct ext2fs_struct_generic_bitmap *ext2fs_block_bitmap;
80 #define EXT2_FIRST_INODE(s) EXT2_FIRST_INO(s)
83 * badblocks list definitions
86 typedef struct ext2_struct_u32_list *ext2_badblocks_list;
87 typedef struct ext2_struct_u32_iterate *ext2_badblocks_iterate;
89 typedef struct ext2_struct_u32_list *ext2_u32_list;
90 typedef struct ext2_struct_u32_iterate *ext2_u32_iterate;
93 typedef struct ext2_struct_u32_list *badblocks_list;
94 typedef struct ext2_struct_u32_iterate *badblocks_iterate;
96 #define BADBLOCKS_FLAG_DIRTY 1
99 * ext2_dblist structure and abstractions (see dblist.c)
101 struct ext2_db_entry {
107 typedef struct ext2_struct_dblist *ext2_dblist;
109 #define DBLIST_ABORT 1
112 * ext2_fileio definitions
115 #define EXT2_FILE_WRITE 0x0001
116 #define EXT2_FILE_CREATE 0x0002
118 #define EXT2_FILE_MASK 0x00FF
120 #define EXT2_FILE_BUF_DIRTY 0x4000
121 #define EXT2_FILE_BUF_VALID 0x2000
123 typedef struct ext2_file *ext2_file_t;
125 #define EXT2_SEEK_SET 0
126 #define EXT2_SEEK_CUR 1
127 #define EXT2_SEEK_END 2
130 * Flags for the ext2_filsys structure and for ext2fs_open()
132 #define EXT2_FLAG_RW 0x01
133 #define EXT2_FLAG_CHANGED 0x02
134 #define EXT2_FLAG_DIRTY 0x04
135 #define EXT2_FLAG_VALID 0x08
136 #define EXT2_FLAG_IB_DIRTY 0x10
137 #define EXT2_FLAG_BB_DIRTY 0x20
138 #define EXT2_FLAG_SWAP_BYTES 0x40
139 #define EXT2_FLAG_SWAP_BYTES_READ 0x80
140 #define EXT2_FLAG_SWAP_BYTES_WRITE 0x100
141 #define EXT2_FLAG_MASTER_SB_ONLY 0x200
142 #define EXT2_FLAG_FORCE 0x400
143 #define EXT2_FLAG_SUPER_ONLY 0x800
144 #define EXT2_FLAG_JOURNAL_DEV_OK 0x1000
145 #define EXT2_FLAG_IMAGE_FILE 0x2000
148 * Special flag in the ext2 inode i_flag field that means that this is
149 * a new inode. (So that ext2_write_inode() can clear extra fields.)
151 #define EXT2_NEW_INODE_FL 0x80000000
154 * Flags for mkjournal
156 * EXT2_MKJOURNAL_V1_SUPER Make a (deprecated) V1 journal superblock
158 #define EXT2_MKJOURNAL_V1_SUPER 0x0000001
160 struct struct_ext2_filsys {
165 struct ext2_super_block * super;
166 unsigned int blocksize;
168 dgrp_t group_desc_count;
169 unsigned long desc_blocks;
170 struct ext2_group_desc * group_desc;
171 int inode_blocks_per_group;
172 ext2fs_inode_bitmap inode_map;
173 ext2fs_block_bitmap block_map;
174 errcode_t (*get_blocks)(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
175 errcode_t (*check_directory)(ext2_filsys fs, ext2_ino_t ino);
176 errcode_t (*write_bitmaps)(ext2_filsys fs);
177 errcode_t (*read_inode)(ext2_filsys fs, ext2_ino_t ino,
178 struct ext2_inode *inode);
179 errcode_t (*write_inode)(ext2_filsys fs, ext2_ino_t ino,
180 struct ext2_inode *inode);
181 ext2_badblocks_list badblocks;
183 __u32 stride; /* for mke2fs */
184 struct ext2_super_block * orig_super;
185 struct ext2_image_hdr * image_header;
188 * Reserved for future expansion
193 * Reserved for the use of the calling application.
200 struct ext2_inode_cache *icache;
207 * Return flags for the block iterator functions
209 #define BLOCK_CHANGED 1
210 #define BLOCK_ABORT 2
211 #define BLOCK_ERROR 4
214 * Block interate flags
216 * BLOCK_FLAG_APPEND, or BLOCK_FLAG_HOLE, indicates that the interator
217 * function should be called on blocks where the block number is zero.
218 * This is used by ext2fs_expand_dir() to be able to add a new block
219 * to an inode. It can also be used for programs that want to be able
220 * to deal with files that contain "holes".
222 * BLOCK_FLAG_TRAVERSE indicates that the iterator function for the
223 * indirect, doubly indirect, etc. blocks should be called after all
224 * of the blocks containined in the indirect blocks are processed.
225 * This is useful if you are going to be deallocating blocks from an
228 * BLOCK_FLAG_DATA_ONLY indicates that the iterator function should be
229 * called for data blocks only.
231 * BLOCK_FLAG_NO_LARGE is for internal use only. It informs
232 * ext2fs_block_iterate2 that large files won't be accepted.
234 #define BLOCK_FLAG_APPEND 1
235 #define BLOCK_FLAG_HOLE 1
236 #define BLOCK_FLAG_DEPTH_TRAVERSE 2
237 #define BLOCK_FLAG_DATA_ONLY 4
239 #define BLOCK_FLAG_NO_LARGE 0x1000
242 * Magic "block count" return values for the block iterator function.
244 #define BLOCK_COUNT_IND (-1)
245 #define BLOCK_COUNT_DIND (-2)
246 #define BLOCK_COUNT_TIND (-3)
247 #define BLOCK_COUNT_TRANSLATOR (-4)
251 * Flags for ext2fs_move_blocks
253 #define EXT2_BMOVE_GET_DBLIST 0x0001
254 #define EXT2_BMOVE_DEBUG 0x0002
258 * Flags for directory block reading and writing functions
260 #define EXT2_DIRBLOCK_V2_STRUCT 0x0001
263 * Return flags for the directory iterator functions
265 #define DIRENT_CHANGED 1
266 #define DIRENT_ABORT 2
267 #define DIRENT_ERROR 3
270 * Directory iterator flags
273 #define DIRENT_FLAG_INCLUDE_EMPTY 1
274 #define DIRENT_FLAG_INCLUDE_REMOVED 2
276 #define DIRENT_DOT_FILE 1
277 #define DIRENT_DOT_DOT_FILE 2
278 #define DIRENT_OTHER_FILE 3
279 #define DIRENT_DELETED_FILE 4
282 * Inode scan definitions
284 typedef struct ext2_struct_inode_scan *ext2_inode_scan;
289 #define EXT2_SF_CHK_BADBLOCKS 0x0001
290 #define EXT2_SF_BAD_INODE_BLK 0x0002
291 #define EXT2_SF_BAD_EXTRA_BYTES 0x0004
292 #define EXT2_SF_SKIP_MISSING_ITABLE 0x0008
295 * ext2fs_check_if_mounted flags
297 #define EXT2_MF_MOUNTED 1
298 #define EXT2_MF_ISROOT 2
299 #define EXT2_MF_READONLY 4
300 #define EXT2_MF_SWAP 8
301 #define EXT2_MF_BUSY 16
304 * Ext2/linux mode flags. We define them here so that we don't need
305 * to depend on the OS's sys/stat.h, since we may be compiling on a
308 #define LINUX_S_IFMT 00170000
309 #define LINUX_S_IFSOCK 0140000
310 #define LINUX_S_IFLNK 0120000
311 #define LINUX_S_IFREG 0100000
312 #define LINUX_S_IFBLK 0060000
313 #define LINUX_S_IFDIR 0040000
314 #define LINUX_S_IFCHR 0020000
315 #define LINUX_S_IFIFO 0010000
316 #define LINUX_S_ISUID 0004000
317 #define LINUX_S_ISGID 0002000
318 #define LINUX_S_ISVTX 0001000
320 #define LINUX_S_IRWXU 00700
321 #define LINUX_S_IRUSR 00400
322 #define LINUX_S_IWUSR 00200
323 #define LINUX_S_IXUSR 00100
325 #define LINUX_S_IRWXG 00070
326 #define LINUX_S_IRGRP 00040
327 #define LINUX_S_IWGRP 00020
328 #define LINUX_S_IXGRP 00010
330 #define LINUX_S_IRWXO 00007
331 #define LINUX_S_IROTH 00004
332 #define LINUX_S_IWOTH 00002
333 #define LINUX_S_IXOTH 00001
335 #define LINUX_S_ISLNK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFLNK)
336 #define LINUX_S_ISREG(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFREG)
337 #define LINUX_S_ISDIR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFDIR)
338 #define LINUX_S_ISCHR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFCHR)
339 #define LINUX_S_ISBLK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFBLK)
340 #define LINUX_S_ISFIFO(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFIFO)
341 #define LINUX_S_ISSOCK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFSOCK)
344 * ext2 size of an inode
346 #define EXT2_I_SIZE(i) ((i)->i_size | ((__u64) (i)->i_size_high << 32))
349 * ext2_icount_t abstraction
351 #define EXT2_ICOUNT_OPT_INCREMENT 0x01
353 typedef struct ext2_icount *ext2_icount_t;
356 * Flags for ext2fs_bmap
358 #define BMAP_ALLOC 0x0001
359 #define BMAP_SET 0x0002
362 * Flags for imager.c functions
364 #define IMAGER_FLAG_INODEMAP 1
365 #define IMAGER_FLAG_SPARSEWRITE 2
368 * For checking structure magic numbers...
371 #define EXT2_CHECK_MAGIC(struct, code) \
372 if ((struct)->magic != (code)) return (code)
376 * For ext2 compression support
378 #define EXT2FS_COMPRESSED_BLKADDR ((blk_t) 0xffffffff)
379 #define HOLE_BLKADDR(_b) ((_b) == 0 || (_b) == EXT2FS_COMPRESSED_BLKADDR)
382 * Features supported by this version of the library
384 #define EXT2_LIB_FEATURE_COMPAT_SUPP (EXT2_FEATURE_COMPAT_DIR_PREALLOC|\
385 EXT2_FEATURE_COMPAT_IMAGIC_INODES|\
386 EXT3_FEATURE_COMPAT_HAS_JOURNAL|\
387 EXT2_FEATURE_COMPAT_RESIZE_INODE|\
388 EXT2_FEATURE_COMPAT_DIR_INDEX|\
389 EXT2_FEATURE_COMPAT_EXT_ATTR)
391 /* This #ifdef is temporary until compression is fully supported */
392 #ifdef ENABLE_COMPRESSION
393 #ifndef I_KNOW_THAT_COMPRESSION_IS_EXPERIMENTAL
394 /* If the below warning bugs you, then have
395 `CPPFLAGS=-DI_KNOW_THAT_COMPRESSION_IS_EXPERIMENTAL' in your
396 environment at configure time. */
397 #warning "Compression support is experimental"
399 #define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\
400 EXT2_FEATURE_INCOMPAT_COMPRESSION|\
401 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\
402 EXT2_FEATURE_INCOMPAT_META_BG|\
403 EXT3_FEATURE_INCOMPAT_RECOVER)
405 #define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\
406 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\
407 EXT2_FEATURE_INCOMPAT_META_BG|\
408 EXT3_FEATURE_INCOMPAT_RECOVER)
410 #define EXT2_LIB_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|\
411 EXT2_FEATURE_RO_COMPAT_LARGE_FILE)
413 * function prototypes
417 extern errcode_t ext2fs_new_inode(ext2_filsys fs, ext2_ino_t dir, int mode,
418 ext2fs_inode_bitmap map, ext2_ino_t *ret);
419 extern errcode_t ext2fs_new_block(ext2_filsys fs, blk_t goal,
420 ext2fs_block_bitmap map, blk_t *ret);
421 extern errcode_t ext2fs_get_free_blocks(ext2_filsys fs, blk_t start,
422 blk_t finish, int num,
423 ext2fs_block_bitmap map,
425 extern errcode_t ext2fs_alloc_block(ext2_filsys fs, blk_t goal,
426 char *block_buf, blk_t *ret);
429 extern int ext2fs_reserve_super_and_bgd(ext2_filsys fs,
431 ext2fs_block_bitmap bmap);
434 void ext2fs_inode_alloc_stats(ext2_filsys fs, ext2_ino_t ino, int inuse);
435 void ext2fs_inode_alloc_stats2(ext2_filsys fs, ext2_ino_t ino,
436 int inuse, int isdir);
437 void ext2fs_block_alloc_stats(ext2_filsys fs, blk_t blk, int inuse);
440 extern errcode_t ext2fs_allocate_tables(ext2_filsys fs);
441 extern errcode_t ext2fs_allocate_group_table(ext2_filsys fs, dgrp_t group,
442 ext2fs_block_bitmap bmap);
445 extern errcode_t ext2fs_u32_list_create(ext2_u32_list *ret, int size);
446 extern errcode_t ext2fs_u32_list_add(ext2_u32_list bb, __u32 blk);
447 extern int ext2fs_u32_list_find(ext2_u32_list bb, __u32 blk);
448 extern int ext2fs_u32_list_test(ext2_u32_list bb, blk_t blk);
449 extern errcode_t ext2fs_u32_list_iterate_begin(ext2_u32_list bb,
450 ext2_u32_iterate *ret);
451 extern int ext2fs_u32_list_iterate(ext2_u32_iterate iter, blk_t *blk);
452 extern void ext2fs_u32_list_iterate_end(ext2_u32_iterate iter);
453 extern errcode_t ext2fs_u32_copy(ext2_u32_list src, ext2_u32_list *dest);
454 extern int ext2fs_u32_list_equal(ext2_u32_list bb1, ext2_u32_list bb2);
456 extern errcode_t ext2fs_badblocks_list_create(ext2_badblocks_list *ret,
458 extern errcode_t ext2fs_badblocks_list_add(ext2_badblocks_list bb,
460 extern int ext2fs_badblocks_list_test(ext2_badblocks_list bb,
462 extern int ext2fs_u32_list_del(ext2_u32_list bb, __u32 blk);
463 extern void ext2fs_badblocks_list_del(ext2_u32_list bb, __u32 blk);
465 ext2fs_badblocks_list_iterate_begin(ext2_badblocks_list bb,
466 ext2_badblocks_iterate *ret);
467 extern int ext2fs_badblocks_list_iterate(ext2_badblocks_iterate iter,
469 extern void ext2fs_badblocks_list_iterate_end(ext2_badblocks_iterate iter);
470 extern errcode_t ext2fs_badblocks_copy(ext2_badblocks_list src,
471 ext2_badblocks_list *dest);
472 extern int ext2fs_badblocks_equal(ext2_badblocks_list bb1,
473 ext2_badblocks_list bb2);
474 extern int ext2fs_u32_list_count(ext2_u32_list bb);
477 extern errcode_t badblocks_list_create(badblocks_list *ret, int size);
478 extern errcode_t badblocks_list_add(badblocks_list bb, blk_t blk);
479 extern int badblocks_list_test(badblocks_list bb, blk_t blk);
480 extern errcode_t badblocks_list_iterate_begin(badblocks_list bb,
481 badblocks_iterate *ret);
482 extern int badblocks_list_iterate(badblocks_iterate iter, blk_t *blk);
483 extern void badblocks_list_iterate_end(badblocks_iterate iter);
484 extern void badblocks_list_free(badblocks_list bb);
487 extern errcode_t ext2fs_update_bb_inode(ext2_filsys fs,
488 ext2_badblocks_list bb_list);
491 extern errcode_t ext2fs_write_inode_bitmap(ext2_filsys fs);
492 extern errcode_t ext2fs_write_block_bitmap (ext2_filsys fs);
493 extern errcode_t ext2fs_read_inode_bitmap (ext2_filsys fs);
494 extern errcode_t ext2fs_read_block_bitmap(ext2_filsys fs);
495 extern errcode_t ext2fs_allocate_generic_bitmap(__u32 start,
499 ext2fs_generic_bitmap *ret);
500 extern errcode_t ext2fs_allocate_block_bitmap(ext2_filsys fs,
502 ext2fs_block_bitmap *ret);
503 extern errcode_t ext2fs_allocate_inode_bitmap(ext2_filsys fs,
505 ext2fs_inode_bitmap *ret);
506 extern errcode_t ext2fs_fudge_inode_bitmap_end(ext2fs_inode_bitmap bitmap,
507 ext2_ino_t end, ext2_ino_t *oend);
508 extern errcode_t ext2fs_fudge_block_bitmap_end(ext2fs_block_bitmap bitmap,
509 blk_t end, blk_t *oend);
510 extern void ext2fs_clear_inode_bitmap(ext2fs_inode_bitmap bitmap);
511 extern void ext2fs_clear_block_bitmap(ext2fs_block_bitmap bitmap);
512 extern errcode_t ext2fs_read_bitmaps(ext2_filsys fs);
513 extern errcode_t ext2fs_write_bitmaps(ext2_filsys fs);
516 extern errcode_t ext2fs_block_iterate(ext2_filsys fs,
520 int (*func)(ext2_filsys fs,
525 errcode_t ext2fs_block_iterate2(ext2_filsys fs,
529 int (*func)(ext2_filsys fs,
531 e2_blkcnt_t blockcnt,
538 extern errcode_t ext2fs_bmap(ext2_filsys fs, ext2_ino_t ino,
539 struct ext2_inode *inode,
540 char *block_buf, int bmap_flags,
541 blk_t block, blk_t *phys_blk);
546 extern errcode_t ext2fs_move_blocks(ext2_filsys fs,
547 ext2fs_block_bitmap reserve,
548 ext2fs_block_bitmap alloc_map,
553 extern errcode_t ext2fs_check_desc(ext2_filsys fs);
556 extern errcode_t ext2fs_close(ext2_filsys fs);
557 extern errcode_t ext2fs_flush(ext2_filsys fs);
558 extern int ext2fs_bg_has_super(ext2_filsys fs, int group_block);
559 extern int ext2fs_super_and_bgd_loc(ext2_filsys fs,
561 blk_t *ret_super_blk,
562 blk_t *ret_old_desc_blk,
563 blk_t *ret_new_desc_blk,
565 extern void ext2fs_update_dynamic_rev(ext2_filsys fs);
568 extern errcode_t ext2fs_compare_block_bitmap(ext2fs_block_bitmap bm1,
569 ext2fs_block_bitmap bm2);
570 extern errcode_t ext2fs_compare_inode_bitmap(ext2fs_inode_bitmap bm1,
571 ext2fs_inode_bitmap bm2);
575 extern errcode_t ext2fs_get_num_dirs(ext2_filsys fs, ext2_ino_t *ret_num_dirs);
576 extern errcode_t ext2fs_init_dblist(ext2_filsys fs, ext2_dblist *ret_dblist);
577 extern errcode_t ext2fs_add_dir_block(ext2_dblist dblist, ext2_ino_t ino,
578 blk_t blk, int blockcnt);
579 extern void ext2fs_dblist_sort(ext2_dblist dblist,
580 int (*sortfunc)(const void *,
582 extern errcode_t ext2fs_dblist_iterate(ext2_dblist dblist,
583 int (*func)(ext2_filsys fs, struct ext2_db_entry *db_info,
586 extern errcode_t ext2fs_set_dir_block(ext2_dblist dblist, ext2_ino_t ino,
587 blk_t blk, int blockcnt);
588 extern errcode_t ext2fs_copy_dblist(ext2_dblist src,
590 extern int ext2fs_dblist_count(ext2_dblist dblist);
594 ext2fs_dblist_dir_iterate(ext2_dblist dblist,
597 int (*func)(ext2_ino_t dir,
599 struct ext2_dir_entry *dirent,
607 extern errcode_t ext2fs_read_dir_block(ext2_filsys fs, blk_t block,
609 extern errcode_t ext2fs_read_dir_block2(ext2_filsys fs, blk_t block,
610 void *buf, int flags);
611 extern errcode_t ext2fs_write_dir_block(ext2_filsys fs, blk_t block,
613 extern errcode_t ext2fs_write_dir_block2(ext2_filsys fs, blk_t block,
614 void *buf, int flags);
617 extern errcode_t ext2fs_dirhash(int version, const char *name, int len,
619 ext2_dirhash_t *ret_hash,
620 ext2_dirhash_t *ret_minor_hash);
624 extern errcode_t ext2fs_dir_iterate(ext2_filsys fs,
628 int (*func)(struct ext2_dir_entry *dirent,
634 extern errcode_t ext2fs_dir_iterate2(ext2_filsys fs,
638 int (*func)(ext2_ino_t dir,
640 struct ext2_dir_entry *dirent,
648 extern errcode_t ext2fs_dup_handle(ext2_filsys src, ext2_filsys *dest);
651 extern errcode_t ext2fs_expand_dir(ext2_filsys fs, ext2_ino_t dir);
654 extern errcode_t ext2fs_read_ext_attr(ext2_filsys fs, blk_t block, void *buf);
655 extern errcode_t ext2fs_write_ext_attr(ext2_filsys fs, blk_t block,
657 extern errcode_t ext2fs_adjust_ea_refcount(ext2_filsys fs, blk_t blk,
659 int adjust, __u32 *newcount);
662 extern errcode_t ext2fs_file_open2(ext2_filsys fs, ext2_ino_t ino,
663 struct ext2_inode *inode,
664 int flags, ext2_file_t *ret);
665 extern errcode_t ext2fs_file_open(ext2_filsys fs, ext2_ino_t ino,
666 int flags, ext2_file_t *ret);
667 extern ext2_filsys ext2fs_file_get_fs(ext2_file_t file);
668 extern errcode_t ext2fs_file_close(ext2_file_t file);
669 extern errcode_t ext2fs_file_flush(ext2_file_t file);
670 extern errcode_t ext2fs_file_read(ext2_file_t file, void *buf,
671 unsigned int wanted, unsigned int *got);
672 extern errcode_t ext2fs_file_write(ext2_file_t file, const void *buf,
673 unsigned int nbytes, unsigned int *written);
674 extern errcode_t ext2fs_file_llseek(ext2_file_t file, __u64 offset,
675 int whence, __u64 *ret_pos);
676 extern errcode_t ext2fs_file_lseek(ext2_file_t file, ext2_off_t offset,
677 int whence, ext2_off_t *ret_pos);
678 errcode_t ext2fs_file_get_lsize(ext2_file_t file, __u64 *ret_size);
679 extern ext2_off_t ext2fs_file_get_size(ext2_file_t file);
680 extern errcode_t ext2fs_file_set_size(ext2_file_t file, ext2_off_t size);
683 extern char *ext2fs_find_block_device(dev_t device);
686 extern errcode_t ext2fs_sync_device(int fd, int flushb);
689 extern void ext2fs_free(ext2_filsys fs);
690 extern void ext2fs_free_generic_bitmap(ext2fs_inode_bitmap bitmap);
691 extern void ext2fs_free_block_bitmap(ext2fs_block_bitmap bitmap);
692 extern void ext2fs_free_inode_bitmap(ext2fs_inode_bitmap bitmap);
693 extern void ext2fs_free_dblist(ext2_dblist dblist);
694 extern void ext2fs_badblocks_list_free(ext2_badblocks_list bb);
695 extern void ext2fs_u32_list_free(ext2_u32_list bb);
698 extern errcode_t ext2fs_get_device_size(const char *file, int blocksize,
702 errcode_t ext2fs_get_device_sectsize(const char *file, int *sectsize);
705 extern errcode_t ext2fs_image_inode_write(ext2_filsys fs, int fd, int flags);
706 extern errcode_t ext2fs_image_inode_read(ext2_filsys fs, int fd, int flags);
707 extern errcode_t ext2fs_image_super_write(ext2_filsys fs, int fd, int flags);
708 extern errcode_t ext2fs_image_super_read(ext2_filsys fs, int fd, int flags);
709 extern errcode_t ext2fs_image_bitmap_write(ext2_filsys fs, int fd, int flags);
710 extern errcode_t ext2fs_image_bitmap_read(ext2_filsys fs, int fd, int flags);
713 errcode_t ext2fs_read_ind_block(ext2_filsys fs, blk_t blk, void *buf);
714 errcode_t ext2fs_write_ind_block(ext2_filsys fs, blk_t blk, void *buf);
717 extern errcode_t ext2fs_initialize(const char *name, int flags,
718 struct ext2_super_block *param,
719 io_manager manager, ext2_filsys *ret_fs);
722 extern void ext2fs_free_icount(ext2_icount_t icount);
723 extern errcode_t ext2fs_create_icount2(ext2_filsys fs, int flags,
725 ext2_icount_t hint, ext2_icount_t *ret);
726 extern errcode_t ext2fs_create_icount(ext2_filsys fs, int flags,
729 extern errcode_t ext2fs_icount_fetch(ext2_icount_t icount, ext2_ino_t ino,
731 extern errcode_t ext2fs_icount_increment(ext2_icount_t icount, ext2_ino_t ino,
733 extern errcode_t ext2fs_icount_decrement(ext2_icount_t icount, ext2_ino_t ino,
735 extern errcode_t ext2fs_icount_store(ext2_icount_t icount, ext2_ino_t ino,
737 extern ext2_ino_t ext2fs_get_icount_size(ext2_icount_t icount);
738 errcode_t ext2fs_icount_validate(ext2_icount_t icount, FILE *);
741 extern errcode_t ext2fs_flush_icache(ext2_filsys fs);
742 extern errcode_t ext2fs_get_next_inode_full(ext2_inode_scan scan,
744 struct ext2_inode *inode,
746 extern errcode_t ext2fs_open_inode_scan(ext2_filsys fs, int buffer_blocks,
747 ext2_inode_scan *ret_scan);
748 extern void ext2fs_close_inode_scan(ext2_inode_scan scan);
749 extern errcode_t ext2fs_get_next_inode(ext2_inode_scan scan, ext2_ino_t *ino,
750 struct ext2_inode *inode);
751 extern errcode_t ext2fs_inode_scan_goto_blockgroup(ext2_inode_scan scan,
753 extern void ext2fs_set_inode_callback
754 (ext2_inode_scan scan,
755 errcode_t (*done_group)(ext2_filsys fs,
758 void *done_group_data);
759 extern int ext2fs_inode_scan_flags(ext2_inode_scan scan, int set_flags,
761 extern errcode_t ext2fs_read_inode_full(ext2_filsys fs, ext2_ino_t ino,
762 struct ext2_inode * inode,
764 extern errcode_t ext2fs_read_inode (ext2_filsys fs, ext2_ino_t ino,
765 struct ext2_inode * inode);
766 extern errcode_t ext2fs_write_inode_full(ext2_filsys fs, ext2_ino_t ino,
767 struct ext2_inode * inode,
769 extern errcode_t ext2fs_write_inode(ext2_filsys fs, ext2_ino_t ino,
770 struct ext2_inode * inode);
771 extern errcode_t ext2fs_write_new_inode(ext2_filsys fs, ext2_ino_t ino,
772 struct ext2_inode * inode);
773 extern errcode_t ext2fs_get_blocks(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
774 extern errcode_t ext2fs_check_directory(ext2_filsys fs, ext2_ino_t ino);
777 extern io_manager inode_io_manager;
778 extern errcode_t ext2fs_inode_io_intern(ext2_filsys fs, ext2_ino_t ino,
780 extern errcode_t ext2fs_inode_io_intern2(ext2_filsys fs, ext2_ino_t ino,
781 struct ext2_inode *inode,
785 extern errcode_t ext2fs_check_if_mounted(const char *file, int *mount_flags);
786 extern errcode_t ext2fs_check_mount_point(const char *device, int *mount_flags,
787 char *mtpt, int mtlen);
790 extern errcode_t ext2fs_lookup(ext2_filsys fs, ext2_ino_t dir, const char *name,
791 int namelen, char *buf, ext2_ino_t *inode);
792 extern errcode_t ext2fs_namei(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
793 const char *name, ext2_ino_t *inode);
794 errcode_t ext2fs_namei_follow(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
795 const char *name, ext2_ino_t *inode);
796 extern errcode_t ext2fs_follow_link(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
797 ext2_ino_t inode, ext2_ino_t *res_inode);
800 int ext2fs_native_flag(void);
803 extern errcode_t ext2fs_new_dir_block(ext2_filsys fs, ext2_ino_t dir_ino,
804 ext2_ino_t parent_ino, char **block);
807 extern errcode_t ext2fs_mkdir(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t inum,
811 extern errcode_t ext2fs_create_journal_superblock(ext2_filsys fs,
812 __u32 size, int flags,
814 extern errcode_t ext2fs_add_journal_device(ext2_filsys fs,
815 ext2_filsys journal_dev);
816 extern errcode_t ext2fs_add_journal_inode(ext2_filsys fs, blk_t size,
820 extern errcode_t ext2fs_open(const char *name, int flags, int superblock,
821 unsigned int block_size, io_manager manager,
822 ext2_filsys *ret_fs);
823 extern errcode_t ext2fs_open2(const char *name, const char *io_options,
824 int flags, int superblock,
825 unsigned int block_size, io_manager manager,
826 ext2_filsys *ret_fs);
827 extern blk_t ext2fs_descriptor_block_loc(ext2_filsys fs, blk_t group_block,
829 errcode_t ext2fs_get_data_io(ext2_filsys fs, io_channel *old_io);
830 errcode_t ext2fs_set_data_io(ext2_filsys fs, io_channel new_io);
831 errcode_t ext2fs_rewrite_to_io(ext2_filsys fs, io_channel new_io);
834 extern errcode_t ext2fs_get_pathname(ext2_filsys fs, ext2_ino_t dir, ext2_ino_t ino,
838 errcode_t ext2fs_link(ext2_filsys fs, ext2_ino_t dir, const char *name,
839 ext2_ino_t ino, int flags);
840 errcode_t ext2fs_unlink(ext2_filsys fs, ext2_ino_t dir, const char *name,
841 ext2_ino_t ino, int flags);
844 extern errcode_t ext2fs_read_bb_inode(ext2_filsys fs,
845 ext2_badblocks_list *bb_list);
848 extern errcode_t ext2fs_read_bb_FILE2(ext2_filsys fs, FILE *f,
849 ext2_badblocks_list *bb_list,
851 void (*invalid)(ext2_filsys fs,
855 extern errcode_t ext2fs_read_bb_FILE(ext2_filsys fs, FILE *f,
856 ext2_badblocks_list *bb_list,
857 void (*invalid)(ext2_filsys fs,
861 extern errcode_t ext2fs_create_resize_inode(ext2_filsys fs);
864 extern errcode_t ext2fs_resize_generic_bitmap(__u32 new_end,
866 ext2fs_generic_bitmap bmap);
867 extern errcode_t ext2fs_resize_inode_bitmap(__u32 new_end, __u32 new_real_end,
868 ext2fs_inode_bitmap bmap);
869 extern errcode_t ext2fs_resize_block_bitmap(__u32 new_end, __u32 new_real_end,
870 ext2fs_block_bitmap bmap);
871 extern errcode_t ext2fs_copy_bitmap(ext2fs_generic_bitmap src,
872 ext2fs_generic_bitmap *dest);
875 extern void ext2fs_swap_ext_attr(char *to, char *from, int bufsize,
877 extern void ext2fs_swap_super(struct ext2_super_block * super);
878 extern void ext2fs_swap_group_desc(struct ext2_group_desc *gdp);
879 extern void ext2fs_swap_inode_full(ext2_filsys fs, struct ext2_inode_large *t,
880 struct ext2_inode_large *f, int hostorder,
882 extern void ext2fs_swap_inode(ext2_filsys fs,struct ext2_inode *t,
883 struct ext2_inode *f, int hostorder);
886 extern int ext2fs_inode_has_valid_blocks(struct ext2_inode *inode);
889 extern int ext2fs_parse_version_string(const char *ver_string);
890 extern int ext2fs_get_library_version(const char **ver_string,
891 const char **date_string);
893 /* write_bb_file.c */
894 extern errcode_t ext2fs_write_bb_FILE(ext2_badblocks_list bb_list,
899 /* inline functions */
900 extern errcode_t ext2fs_get_mem(unsigned long size, void *ptr);
901 extern errcode_t ext2fs_free_mem(void *ptr);
902 extern errcode_t ext2fs_resize_mem(unsigned long old_size,
903 unsigned long size, void *ptr);
904 extern void ext2fs_mark_super_dirty(ext2_filsys fs);
905 extern void ext2fs_mark_changed(ext2_filsys fs);
906 extern int ext2fs_test_changed(ext2_filsys fs);
907 extern void ext2fs_mark_valid(ext2_filsys fs);
908 extern void ext2fs_unmark_valid(ext2_filsys fs);
909 extern int ext2fs_test_valid(ext2_filsys fs);
910 extern void ext2fs_mark_ib_dirty(ext2_filsys fs);
911 extern void ext2fs_mark_bb_dirty(ext2_filsys fs);
912 extern int ext2fs_test_ib_dirty(ext2_filsys fs);
913 extern int ext2fs_test_bb_dirty(ext2_filsys fs);
914 extern int ext2fs_group_of_blk(ext2_filsys fs, blk_t blk);
915 extern int ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino);
916 extern blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
917 struct ext2_inode *inode);
923 #endif /* _EXT2FS_EXT2FS_H */