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
12 #ifndef EXT2FS_EXT2FS_H
13 #define EXT2FS_EXT2FS_H 1
17 # define EXT2FS_ATTR(x) __attribute__(x)
19 # define EXT2FS_ATTR(x)
27 * Where the master copy of the superblock is located, and how big
28 * superblocks are supposed to be. We define SUPERBLOCK_SIZE because
29 * the size of the superblock structure is not necessarily trustworthy
30 * (some versions have the padding set up so that the superblock is
33 #define SUPERBLOCK_OFFSET 1024
34 #define SUPERBLOCK_SIZE 1024
37 * The last ext2fs revision level that this version of the library is
40 #define EXT2_LIB_CURRENT_REV EXT2_DYNAMIC_REV
42 #ifdef HAVE_SYS_TYPES_H
43 #include <sys/types.h>
49 #include "../e2fsbb.h"
50 #include "ext2_types.h"
53 typedef __u32 ext2_ino_t
;
56 typedef __u32 ext2_off_t
;
57 typedef __s64 e2_blkcnt_t
;
58 typedef __u32 ext2_dirhash_t
;
63 typedef struct struct_ext2_filsys
*ext2_filsys
;
65 struct ext2fs_struct_generic_bitmap
{
72 errcode_t base_error_code
;
76 #define EXT2FS_MARK_ERROR 0
77 #define EXT2FS_UNMARK_ERROR 1
78 #define EXT2FS_TEST_ERROR 2
80 typedef struct ext2fs_struct_generic_bitmap
*ext2fs_generic_bitmap
;
81 typedef struct ext2fs_struct_generic_bitmap
*ext2fs_inode_bitmap
;
82 typedef struct ext2fs_struct_generic_bitmap
*ext2fs_block_bitmap
;
84 #define EXT2_FIRST_INODE(s) EXT2_FIRST_INO(s)
87 * badblocks list definitions
90 typedef struct ext2_struct_u32_list
*ext2_badblocks_list
;
91 typedef struct ext2_struct_u32_iterate
*ext2_badblocks_iterate
;
93 typedef struct ext2_struct_u32_list
*ext2_u32_list
;
94 typedef struct ext2_struct_u32_iterate
*ext2_u32_iterate
;
97 typedef struct ext2_struct_u32_list
*badblocks_list
;
98 typedef struct ext2_struct_u32_iterate
*badblocks_iterate
;
100 #define BADBLOCKS_FLAG_DIRTY 1
103 * ext2_dblist structure and abstractions (see dblist.c)
105 struct ext2_db_entry
{
111 typedef struct ext2_struct_dblist
*ext2_dblist
;
113 #define DBLIST_ABORT 1
116 * ext2_fileio definitions
119 #define EXT2_FILE_WRITE 0x0001
120 #define EXT2_FILE_CREATE 0x0002
122 #define EXT2_FILE_MASK 0x00FF
124 #define EXT2_FILE_BUF_DIRTY 0x4000
125 #define EXT2_FILE_BUF_VALID 0x2000
127 typedef struct ext2_file
*ext2_file_t
;
129 #define EXT2_SEEK_SET 0
130 #define EXT2_SEEK_CUR 1
131 #define EXT2_SEEK_END 2
134 * Flags for the ext2_filsys structure and for ext2fs_open()
136 #define EXT2_FLAG_RW 0x01
137 #define EXT2_FLAG_CHANGED 0x02
138 #define EXT2_FLAG_DIRTY 0x04
139 #define EXT2_FLAG_VALID 0x08
140 #define EXT2_FLAG_IB_DIRTY 0x10
141 #define EXT2_FLAG_BB_DIRTY 0x20
142 #define EXT2_FLAG_SWAP_BYTES 0x40
143 #define EXT2_FLAG_SWAP_BYTES_READ 0x80
144 #define EXT2_FLAG_SWAP_BYTES_WRITE 0x100
145 #define EXT2_FLAG_MASTER_SB_ONLY 0x200
146 #define EXT2_FLAG_FORCE 0x400
147 #define EXT2_FLAG_SUPER_ONLY 0x800
148 #define EXT2_FLAG_JOURNAL_DEV_OK 0x1000
149 #define EXT2_FLAG_IMAGE_FILE 0x2000
152 * Special flag in the ext2 inode i_flag field that means that this is
153 * a new inode. (So that ext2_write_inode() can clear extra fields.)
155 #define EXT2_NEW_INODE_FL 0x80000000
158 * Flags for mkjournal
160 * EXT2_MKJOURNAL_V1_SUPER Make a (deprecated) V1 journal superblock
162 #define EXT2_MKJOURNAL_V1_SUPER 0x0000001
164 struct struct_ext2_filsys
{
169 struct ext2_super_block
* super
;
170 unsigned int blocksize
;
172 dgrp_t group_desc_count
;
173 unsigned long desc_blocks
;
174 struct ext2_group_desc
* group_desc
;
175 int inode_blocks_per_group
;
176 ext2fs_inode_bitmap inode_map
;
177 ext2fs_block_bitmap block_map
;
178 errcode_t (*get_blocks
)(ext2_filsys fs
, ext2_ino_t ino
, blk_t
*blocks
);
179 errcode_t (*check_directory
)(ext2_filsys fs
, ext2_ino_t ino
);
180 errcode_t (*write_bitmaps
)(ext2_filsys fs
);
181 errcode_t (*read_inode
)(ext2_filsys fs
, ext2_ino_t ino
,
182 struct ext2_inode
*inode
);
183 errcode_t (*write_inode
)(ext2_filsys fs
, ext2_ino_t ino
,
184 struct ext2_inode
*inode
);
185 ext2_badblocks_list badblocks
;
187 __u32 stride
; /* for mke2fs */
188 struct ext2_super_block
* orig_super
;
189 struct ext2_image_hdr
* image_header
;
192 * Reserved for future expansion
197 * Reserved for the use of the calling application.
204 struct ext2_inode_cache
*icache
;
211 * Return flags for the block iterator functions
213 #define BLOCK_CHANGED 1
214 #define BLOCK_ABORT 2
215 #define BLOCK_ERROR 4
218 * Block interate flags
220 * BLOCK_FLAG_APPEND, or BLOCK_FLAG_HOLE, indicates that the interator
221 * function should be called on blocks where the block number is zero.
222 * This is used by ext2fs_expand_dir() to be able to add a new block
223 * to an inode. It can also be used for programs that want to be able
224 * to deal with files that contain "holes".
226 * BLOCK_FLAG_TRAVERSE indicates that the iterator function for the
227 * indirect, doubly indirect, etc. blocks should be called after all
228 * of the blocks containined in the indirect blocks are processed.
229 * This is useful if you are going to be deallocating blocks from an
232 * BLOCK_FLAG_DATA_ONLY indicates that the iterator function should be
233 * called for data blocks only.
235 * BLOCK_FLAG_NO_LARGE is for internal use only. It informs
236 * ext2fs_block_iterate2 that large files won't be accepted.
238 #define BLOCK_FLAG_APPEND 1
239 #define BLOCK_FLAG_HOLE 1
240 #define BLOCK_FLAG_DEPTH_TRAVERSE 2
241 #define BLOCK_FLAG_DATA_ONLY 4
243 #define BLOCK_FLAG_NO_LARGE 0x1000
246 * Magic "block count" return values for the block iterator function.
248 #define BLOCK_COUNT_IND (-1)
249 #define BLOCK_COUNT_DIND (-2)
250 #define BLOCK_COUNT_TIND (-3)
251 #define BLOCK_COUNT_TRANSLATOR (-4)
255 * Flags for ext2fs_move_blocks
257 #define EXT2_BMOVE_GET_DBLIST 0x0001
258 #define EXT2_BMOVE_DEBUG 0x0002
262 * Flags for directory block reading and writing functions
264 #define EXT2_DIRBLOCK_V2_STRUCT 0x0001
267 * Return flags for the directory iterator functions
269 #define DIRENT_CHANGED 1
270 #define DIRENT_ABORT 2
271 #define DIRENT_ERROR 3
274 * Directory iterator flags
277 #define DIRENT_FLAG_INCLUDE_EMPTY 1
278 #define DIRENT_FLAG_INCLUDE_REMOVED 2
280 #define DIRENT_DOT_FILE 1
281 #define DIRENT_DOT_DOT_FILE 2
282 #define DIRENT_OTHER_FILE 3
283 #define DIRENT_DELETED_FILE 4
286 * Inode scan definitions
288 typedef struct ext2_struct_inode_scan
*ext2_inode_scan
;
293 #define EXT2_SF_CHK_BADBLOCKS 0x0001
294 #define EXT2_SF_BAD_INODE_BLK 0x0002
295 #define EXT2_SF_BAD_EXTRA_BYTES 0x0004
296 #define EXT2_SF_SKIP_MISSING_ITABLE 0x0008
299 * ext2fs_check_if_mounted flags
301 #define EXT2_MF_MOUNTED 1
302 #define EXT2_MF_ISROOT 2
303 #define EXT2_MF_READONLY 4
304 #define EXT2_MF_SWAP 8
305 #define EXT2_MF_BUSY 16
308 * Ext2/linux mode flags. We define them here so that we don't need
309 * to depend on the OS's sys/stat.h, since we may be compiling on a
312 #define LINUX_S_IFMT 00170000
313 #define LINUX_S_IFSOCK 0140000
314 #define LINUX_S_IFLNK 0120000
315 #define LINUX_S_IFREG 0100000
316 #define LINUX_S_IFBLK 0060000
317 #define LINUX_S_IFDIR 0040000
318 #define LINUX_S_IFCHR 0020000
319 #define LINUX_S_IFIFO 0010000
320 #define LINUX_S_ISUID 0004000
321 #define LINUX_S_ISGID 0002000
322 #define LINUX_S_ISVTX 0001000
324 #define LINUX_S_IRWXU 00700
325 #define LINUX_S_IRUSR 00400
326 #define LINUX_S_IWUSR 00200
327 #define LINUX_S_IXUSR 00100
329 #define LINUX_S_IRWXG 00070
330 #define LINUX_S_IRGRP 00040
331 #define LINUX_S_IWGRP 00020
332 #define LINUX_S_IXGRP 00010
334 #define LINUX_S_IRWXO 00007
335 #define LINUX_S_IROTH 00004
336 #define LINUX_S_IWOTH 00002
337 #define LINUX_S_IXOTH 00001
339 #define LINUX_S_ISLNK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFLNK)
340 #define LINUX_S_ISREG(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFREG)
341 #define LINUX_S_ISDIR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFDIR)
342 #define LINUX_S_ISCHR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFCHR)
343 #define LINUX_S_ISBLK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFBLK)
344 #define LINUX_S_ISFIFO(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFIFO)
345 #define LINUX_S_ISSOCK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFSOCK)
348 * ext2 size of an inode
350 #define EXT2_I_SIZE(i) ((i)->i_size | ((__u64) (i)->i_size_high << 32))
353 * ext2_icount_t abstraction
355 #define EXT2_ICOUNT_OPT_INCREMENT 0x01
357 typedef struct ext2_icount
*ext2_icount_t
;
360 * Flags for ext2fs_bmap
362 #define BMAP_ALLOC 0x0001
363 #define BMAP_SET 0x0002
366 * Flags for imager.c functions
368 #define IMAGER_FLAG_INODEMAP 1
369 #define IMAGER_FLAG_SPARSEWRITE 2
372 * For checking structure magic numbers...
375 #define EXT2_CHECK_MAGIC(struct, code) \
376 if ((struct)->magic != (code)) return (code)
380 * For ext2 compression support
382 #define EXT2FS_COMPRESSED_BLKADDR ((blk_t) 0xffffffff)
383 #define HOLE_BLKADDR(_b) ((_b) == 0 || (_b) == EXT2FS_COMPRESSED_BLKADDR)
386 * Features supported by this version of the library
388 #define EXT2_LIB_FEATURE_COMPAT_SUPP (EXT2_FEATURE_COMPAT_DIR_PREALLOC|\
389 EXT2_FEATURE_COMPAT_IMAGIC_INODES|\
390 EXT3_FEATURE_COMPAT_HAS_JOURNAL|\
391 EXT2_FEATURE_COMPAT_RESIZE_INODE|\
392 EXT2_FEATURE_COMPAT_DIR_INDEX|\
393 EXT2_FEATURE_COMPAT_EXT_ATTR)
395 /* This #ifdef is temporary until compression is fully supported */
396 #ifdef ENABLE_COMPRESSION
397 #ifndef I_KNOW_THAT_COMPRESSION_IS_EXPERIMENTAL
398 /* If the below warning bugs you, then have
399 `CPPFLAGS=-DI_KNOW_THAT_COMPRESSION_IS_EXPERIMENTAL' in your
400 environment at configure time. */
401 #warning "Compression support is experimental"
403 #define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\
404 EXT2_FEATURE_INCOMPAT_COMPRESSION|\
405 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\
406 EXT2_FEATURE_INCOMPAT_META_BG|\
407 EXT3_FEATURE_INCOMPAT_RECOVER)
409 #define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\
410 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\
411 EXT2_FEATURE_INCOMPAT_META_BG|\
412 EXT3_FEATURE_INCOMPAT_RECOVER)
414 #define EXT2_LIB_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|\
415 EXT2_FEATURE_RO_COMPAT_LARGE_FILE)
417 * function prototypes
421 extern errcode_t
ext2fs_new_inode(ext2_filsys fs
, ext2_ino_t dir
, int mode
,
422 ext2fs_inode_bitmap map
, ext2_ino_t
*ret
);
423 extern errcode_t
ext2fs_new_block(ext2_filsys fs
, blk_t goal
,
424 ext2fs_block_bitmap map
, blk_t
*ret
);
425 extern errcode_t
ext2fs_get_free_blocks(ext2_filsys fs
, blk_t start
,
426 blk_t finish
, int num
,
427 ext2fs_block_bitmap map
,
429 extern errcode_t
ext2fs_alloc_block(ext2_filsys fs
, blk_t goal
,
430 char *block_buf
, blk_t
*ret
);
433 extern int ext2fs_reserve_super_and_bgd(ext2_filsys fs
,
435 ext2fs_block_bitmap bmap
);
438 void ext2fs_inode_alloc_stats(ext2_filsys fs
, ext2_ino_t ino
, int inuse
);
439 void ext2fs_inode_alloc_stats2(ext2_filsys fs
, ext2_ino_t ino
,
440 int inuse
, int isdir
);
441 void ext2fs_block_alloc_stats(ext2_filsys fs
, blk_t blk
, int inuse
);
444 extern errcode_t
ext2fs_allocate_tables(ext2_filsys fs
);
445 extern errcode_t
ext2fs_allocate_group_table(ext2_filsys fs
, dgrp_t group
,
446 ext2fs_block_bitmap bmap
);
449 extern errcode_t
ext2fs_u32_list_create(ext2_u32_list
*ret
, int size
);
450 extern errcode_t
ext2fs_u32_list_add(ext2_u32_list bb
, __u32 blk
);
451 extern int ext2fs_u32_list_find(ext2_u32_list bb
, __u32 blk
);
452 extern int ext2fs_u32_list_test(ext2_u32_list bb
, blk_t blk
);
453 extern errcode_t
ext2fs_u32_list_iterate_begin(ext2_u32_list bb
,
454 ext2_u32_iterate
*ret
);
455 extern int ext2fs_u32_list_iterate(ext2_u32_iterate iter
, blk_t
*blk
);
456 extern void ext2fs_u32_list_iterate_end(ext2_u32_iterate iter
);
457 extern errcode_t
ext2fs_u32_copy(ext2_u32_list src
, ext2_u32_list
*dest
);
458 extern int ext2fs_u32_list_equal(ext2_u32_list bb1
, ext2_u32_list bb2
);
460 extern errcode_t
ext2fs_badblocks_list_create(ext2_badblocks_list
*ret
,
462 extern errcode_t
ext2fs_badblocks_list_add(ext2_badblocks_list bb
,
464 extern int ext2fs_badblocks_list_test(ext2_badblocks_list bb
,
466 extern int ext2fs_u32_list_del(ext2_u32_list bb
, __u32 blk
);
467 extern void ext2fs_badblocks_list_del(ext2_u32_list bb
, __u32 blk
);
469 ext2fs_badblocks_list_iterate_begin(ext2_badblocks_list bb
,
470 ext2_badblocks_iterate
*ret
);
471 extern int ext2fs_badblocks_list_iterate(ext2_badblocks_iterate iter
,
473 extern void ext2fs_badblocks_list_iterate_end(ext2_badblocks_iterate iter
);
474 extern errcode_t
ext2fs_badblocks_copy(ext2_badblocks_list src
,
475 ext2_badblocks_list
*dest
);
476 extern int ext2fs_badblocks_equal(ext2_badblocks_list bb1
,
477 ext2_badblocks_list bb2
);
478 extern int ext2fs_u32_list_count(ext2_u32_list bb
);
481 extern errcode_t
badblocks_list_create(badblocks_list
*ret
, int size
);
482 extern errcode_t
badblocks_list_add(badblocks_list bb
, blk_t blk
);
483 extern int badblocks_list_test(badblocks_list bb
, blk_t blk
);
484 extern errcode_t
badblocks_list_iterate_begin(badblocks_list bb
,
485 badblocks_iterate
*ret
);
486 extern int badblocks_list_iterate(badblocks_iterate iter
, blk_t
*blk
);
487 extern void badblocks_list_iterate_end(badblocks_iterate iter
);
488 extern void badblocks_list_free(badblocks_list bb
);
491 extern errcode_t
ext2fs_update_bb_inode(ext2_filsys fs
,
492 ext2_badblocks_list bb_list
);
495 extern errcode_t
ext2fs_write_inode_bitmap(ext2_filsys fs
);
496 extern errcode_t
ext2fs_write_block_bitmap (ext2_filsys fs
);
497 extern errcode_t
ext2fs_read_inode_bitmap (ext2_filsys fs
);
498 extern errcode_t
ext2fs_read_block_bitmap(ext2_filsys fs
);
499 extern errcode_t
ext2fs_allocate_generic_bitmap(__u32 start
,
503 ext2fs_generic_bitmap
*ret
);
504 extern errcode_t
ext2fs_allocate_block_bitmap(ext2_filsys fs
,
506 ext2fs_block_bitmap
*ret
);
507 extern errcode_t
ext2fs_allocate_inode_bitmap(ext2_filsys fs
,
509 ext2fs_inode_bitmap
*ret
);
510 extern errcode_t
ext2fs_fudge_inode_bitmap_end(ext2fs_inode_bitmap bitmap
,
511 ext2_ino_t end
, ext2_ino_t
*oend
);
512 extern errcode_t
ext2fs_fudge_block_bitmap_end(ext2fs_block_bitmap bitmap
,
513 blk_t end
, blk_t
*oend
);
514 extern void ext2fs_clear_inode_bitmap(ext2fs_inode_bitmap bitmap
);
515 extern void ext2fs_clear_block_bitmap(ext2fs_block_bitmap bitmap
);
516 extern errcode_t
ext2fs_read_bitmaps(ext2_filsys fs
);
517 extern errcode_t
ext2fs_write_bitmaps(ext2_filsys fs
);
520 extern errcode_t
ext2fs_block_iterate(ext2_filsys fs
,
524 int (*func
)(ext2_filsys fs
,
529 errcode_t
ext2fs_block_iterate2(ext2_filsys fs
,
533 int (*func
)(ext2_filsys fs
,
535 e2_blkcnt_t blockcnt
,
542 extern errcode_t
ext2fs_bmap(ext2_filsys fs
, ext2_ino_t ino
,
543 struct ext2_inode
*inode
,
544 char *block_buf
, int bmap_flags
,
545 blk_t block
, blk_t
*phys_blk
);
550 extern errcode_t
ext2fs_move_blocks(ext2_filsys fs
,
551 ext2fs_block_bitmap reserve
,
552 ext2fs_block_bitmap alloc_map
,
557 extern errcode_t
ext2fs_check_desc(ext2_filsys fs
);
560 extern errcode_t
ext2fs_close(ext2_filsys fs
);
561 extern errcode_t
ext2fs_flush(ext2_filsys fs
);
562 extern int ext2fs_bg_has_super(ext2_filsys fs
, int group_block
);
563 extern int ext2fs_super_and_bgd_loc(ext2_filsys fs
,
565 blk_t
*ret_super_blk
,
566 blk_t
*ret_old_desc_blk
,
567 blk_t
*ret_new_desc_blk
,
569 extern void ext2fs_update_dynamic_rev(ext2_filsys fs
);
572 extern errcode_t
ext2fs_compare_block_bitmap(ext2fs_block_bitmap bm1
,
573 ext2fs_block_bitmap bm2
);
574 extern errcode_t
ext2fs_compare_inode_bitmap(ext2fs_inode_bitmap bm1
,
575 ext2fs_inode_bitmap bm2
);
579 extern errcode_t
ext2fs_get_num_dirs(ext2_filsys fs
, ext2_ino_t
*ret_num_dirs
);
580 extern errcode_t
ext2fs_init_dblist(ext2_filsys fs
, ext2_dblist
*ret_dblist
);
581 extern errcode_t
ext2fs_add_dir_block(ext2_dblist dblist
, ext2_ino_t ino
,
582 blk_t blk
, int blockcnt
);
583 extern void ext2fs_dblist_sort(ext2_dblist dblist
,
584 int (*sortfunc
)(const void *,
586 extern errcode_t
ext2fs_dblist_iterate(ext2_dblist dblist
,
587 int (*func
)(ext2_filsys fs
, struct ext2_db_entry
*db_info
,
590 extern errcode_t
ext2fs_set_dir_block(ext2_dblist dblist
, ext2_ino_t ino
,
591 blk_t blk
, int blockcnt
);
592 extern errcode_t
ext2fs_copy_dblist(ext2_dblist src
,
594 extern int ext2fs_dblist_count(ext2_dblist dblist
);
598 ext2fs_dblist_dir_iterate(ext2_dblist dblist
,
601 int (*func
)(ext2_ino_t dir
,
603 struct ext2_dir_entry
*dirent
,
611 extern errcode_t
ext2fs_read_dir_block(ext2_filsys fs
, blk_t block
,
613 extern errcode_t
ext2fs_read_dir_block2(ext2_filsys fs
, blk_t block
,
614 void *buf
, int flags
);
615 extern errcode_t
ext2fs_write_dir_block(ext2_filsys fs
, blk_t block
,
617 extern errcode_t
ext2fs_write_dir_block2(ext2_filsys fs
, blk_t block
,
618 void *buf
, int flags
);
621 extern errcode_t
ext2fs_dirhash(int version
, const char *name
, int len
,
623 ext2_dirhash_t
*ret_hash
,
624 ext2_dirhash_t
*ret_minor_hash
);
628 extern errcode_t
ext2fs_dir_iterate(ext2_filsys fs
,
632 int (*func
)(struct ext2_dir_entry
*dirent
,
638 extern errcode_t
ext2fs_dir_iterate2(ext2_filsys fs
,
642 int (*func
)(ext2_ino_t dir
,
644 struct ext2_dir_entry
*dirent
,
652 extern errcode_t
ext2fs_dup_handle(ext2_filsys src
, ext2_filsys
*dest
);
655 extern errcode_t
ext2fs_expand_dir(ext2_filsys fs
, ext2_ino_t dir
);
658 extern errcode_t
ext2fs_read_ext_attr(ext2_filsys fs
, blk_t block
, void *buf
);
659 extern errcode_t
ext2fs_write_ext_attr(ext2_filsys fs
, blk_t block
,
661 extern errcode_t
ext2fs_adjust_ea_refcount(ext2_filsys fs
, blk_t blk
,
663 int adjust
, __u32
*newcount
);
666 extern errcode_t
ext2fs_file_open2(ext2_filsys fs
, ext2_ino_t ino
,
667 struct ext2_inode
*inode
,
668 int flags
, ext2_file_t
*ret
);
669 extern errcode_t
ext2fs_file_open(ext2_filsys fs
, ext2_ino_t ino
,
670 int flags
, ext2_file_t
*ret
);
671 extern ext2_filsys
ext2fs_file_get_fs(ext2_file_t file
);
672 extern errcode_t
ext2fs_file_close(ext2_file_t file
);
673 extern errcode_t
ext2fs_file_flush(ext2_file_t file
);
674 extern errcode_t
ext2fs_file_read(ext2_file_t file
, void *buf
,
675 unsigned int wanted
, unsigned int *got
);
676 extern errcode_t
ext2fs_file_write(ext2_file_t file
, const void *buf
,
677 unsigned int nbytes
, unsigned int *written
);
678 extern errcode_t
ext2fs_file_llseek(ext2_file_t file
, __u64 offset
,
679 int whence
, __u64
*ret_pos
);
680 extern errcode_t
ext2fs_file_lseek(ext2_file_t file
, ext2_off_t offset
,
681 int whence
, ext2_off_t
*ret_pos
);
682 errcode_t
ext2fs_file_get_lsize(ext2_file_t file
, __u64
*ret_size
);
683 extern ext2_off_t
ext2fs_file_get_size(ext2_file_t file
);
684 extern errcode_t
ext2fs_file_set_size(ext2_file_t file
, ext2_off_t size
);
687 extern char *ext2fs_find_block_device(dev_t device
);
690 extern errcode_t
ext2fs_sync_device(int fd
, int flushb
);
693 extern void ext2fs_free(ext2_filsys fs
);
694 extern void ext2fs_free_generic_bitmap(ext2fs_inode_bitmap bitmap
);
695 extern void ext2fs_free_block_bitmap(ext2fs_block_bitmap bitmap
);
696 extern void ext2fs_free_inode_bitmap(ext2fs_inode_bitmap bitmap
);
697 extern void ext2fs_free_dblist(ext2_dblist dblist
);
698 extern void ext2fs_badblocks_list_free(ext2_badblocks_list bb
);
699 extern void ext2fs_u32_list_free(ext2_u32_list bb
);
702 extern errcode_t
ext2fs_get_device_size(const char *file
, int blocksize
,
706 errcode_t
ext2fs_get_device_sectsize(const char *file
, int *sectsize
);
709 extern errcode_t
ext2fs_image_inode_write(ext2_filsys fs
, int fd
, int flags
);
710 extern errcode_t
ext2fs_image_inode_read(ext2_filsys fs
, int fd
, int flags
);
711 extern errcode_t
ext2fs_image_super_write(ext2_filsys fs
, int fd
, int flags
);
712 extern errcode_t
ext2fs_image_super_read(ext2_filsys fs
, int fd
, int flags
);
713 extern errcode_t
ext2fs_image_bitmap_write(ext2_filsys fs
, int fd
, int flags
);
714 extern errcode_t
ext2fs_image_bitmap_read(ext2_filsys fs
, int fd
, int flags
);
717 errcode_t
ext2fs_read_ind_block(ext2_filsys fs
, blk_t blk
, void *buf
);
718 errcode_t
ext2fs_write_ind_block(ext2_filsys fs
, blk_t blk
, void *buf
);
721 extern errcode_t
ext2fs_initialize(const char *name
, int flags
,
722 struct ext2_super_block
*param
,
723 io_manager manager
, ext2_filsys
*ret_fs
);
726 extern void ext2fs_free_icount(ext2_icount_t icount
);
727 extern errcode_t
ext2fs_create_icount2(ext2_filsys fs
, int flags
,
729 ext2_icount_t hint
, ext2_icount_t
*ret
);
730 extern errcode_t
ext2fs_create_icount(ext2_filsys fs
, int flags
,
733 extern errcode_t
ext2fs_icount_fetch(ext2_icount_t icount
, ext2_ino_t ino
,
735 extern errcode_t
ext2fs_icount_increment(ext2_icount_t icount
, ext2_ino_t ino
,
737 extern errcode_t
ext2fs_icount_decrement(ext2_icount_t icount
, ext2_ino_t ino
,
739 extern errcode_t
ext2fs_icount_store(ext2_icount_t icount
, ext2_ino_t ino
,
741 extern ext2_ino_t
ext2fs_get_icount_size(ext2_icount_t icount
);
742 errcode_t
ext2fs_icount_validate(ext2_icount_t icount
, FILE *);
745 extern errcode_t
ext2fs_flush_icache(ext2_filsys fs
);
746 extern errcode_t
ext2fs_get_next_inode_full(ext2_inode_scan scan
,
748 struct ext2_inode
*inode
,
750 extern errcode_t
ext2fs_open_inode_scan(ext2_filsys fs
, int buffer_blocks
,
751 ext2_inode_scan
*ret_scan
);
752 extern void ext2fs_close_inode_scan(ext2_inode_scan scan
);
753 extern errcode_t
ext2fs_get_next_inode(ext2_inode_scan scan
, ext2_ino_t
*ino
,
754 struct ext2_inode
*inode
);
755 extern errcode_t
ext2fs_inode_scan_goto_blockgroup(ext2_inode_scan scan
,
757 extern void ext2fs_set_inode_callback
758 (ext2_inode_scan scan
,
759 errcode_t (*done_group
)(ext2_filsys fs
,
762 void *done_group_data
);
763 extern int ext2fs_inode_scan_flags(ext2_inode_scan scan
, int set_flags
,
765 extern errcode_t
ext2fs_read_inode_full(ext2_filsys fs
, ext2_ino_t ino
,
766 struct ext2_inode
* inode
,
768 extern errcode_t
ext2fs_read_inode (ext2_filsys fs
, ext2_ino_t ino
,
769 struct ext2_inode
* inode
);
770 extern errcode_t
ext2fs_write_inode_full(ext2_filsys fs
, ext2_ino_t ino
,
771 struct ext2_inode
* inode
,
773 extern errcode_t
ext2fs_write_inode(ext2_filsys fs
, ext2_ino_t ino
,
774 struct ext2_inode
* inode
);
775 extern errcode_t
ext2fs_write_new_inode(ext2_filsys fs
, ext2_ino_t ino
,
776 struct ext2_inode
* inode
);
777 extern errcode_t
ext2fs_get_blocks(ext2_filsys fs
, ext2_ino_t ino
, blk_t
*blocks
);
778 extern errcode_t
ext2fs_check_directory(ext2_filsys fs
, ext2_ino_t ino
);
781 extern io_manager inode_io_manager
;
782 extern errcode_t
ext2fs_inode_io_intern(ext2_filsys fs
, ext2_ino_t ino
,
784 extern errcode_t
ext2fs_inode_io_intern2(ext2_filsys fs
, ext2_ino_t ino
,
785 struct ext2_inode
*inode
,
789 extern errcode_t
ext2fs_check_if_mounted(const char *file
, int *mount_flags
);
790 extern errcode_t
ext2fs_check_mount_point(const char *device
, int *mount_flags
,
791 char *mtpt
, int mtlen
);
794 extern errcode_t
ext2fs_lookup(ext2_filsys fs
, ext2_ino_t dir
, const char *name
,
795 int namelen
, char *buf
, ext2_ino_t
*inode
);
796 extern errcode_t
ext2fs_namei(ext2_filsys fs
, ext2_ino_t root
, ext2_ino_t cwd
,
797 const char *name
, ext2_ino_t
*inode
);
798 errcode_t
ext2fs_namei_follow(ext2_filsys fs
, ext2_ino_t root
, ext2_ino_t cwd
,
799 const char *name
, ext2_ino_t
*inode
);
800 extern errcode_t
ext2fs_follow_link(ext2_filsys fs
, ext2_ino_t root
, ext2_ino_t cwd
,
801 ext2_ino_t inode
, ext2_ino_t
*res_inode
);
804 int ext2fs_native_flag(void);
807 extern errcode_t
ext2fs_new_dir_block(ext2_filsys fs
, ext2_ino_t dir_ino
,
808 ext2_ino_t parent_ino
, char **block
);
811 extern errcode_t
ext2fs_mkdir(ext2_filsys fs
, ext2_ino_t parent
, ext2_ino_t inum
,
815 extern errcode_t
ext2fs_create_journal_superblock(ext2_filsys fs
,
816 __u32 size
, int flags
,
818 extern errcode_t
ext2fs_add_journal_device(ext2_filsys fs
,
819 ext2_filsys journal_dev
);
820 extern errcode_t
ext2fs_add_journal_inode(ext2_filsys fs
, blk_t size
,
824 extern errcode_t
ext2fs_open(const char *name
, int flags
, int superblock
,
825 unsigned int block_size
, io_manager manager
,
826 ext2_filsys
*ret_fs
);
827 extern errcode_t
ext2fs_open2(const char *name
, const char *io_options
,
828 int flags
, int superblock
,
829 unsigned int block_size
, io_manager manager
,
830 ext2_filsys
*ret_fs
);
831 extern blk_t
ext2fs_descriptor_block_loc(ext2_filsys fs
, blk_t group_block
,
833 errcode_t
ext2fs_get_data_io(ext2_filsys fs
, io_channel
*old_io
);
834 errcode_t
ext2fs_set_data_io(ext2_filsys fs
, io_channel new_io
);
835 errcode_t
ext2fs_rewrite_to_io(ext2_filsys fs
, io_channel new_io
);
838 extern errcode_t
ext2fs_get_pathname(ext2_filsys fs
, ext2_ino_t dir
, ext2_ino_t ino
,
842 errcode_t
ext2fs_link(ext2_filsys fs
, ext2_ino_t dir
, const char *name
,
843 ext2_ino_t ino
, int flags
);
844 errcode_t
ext2fs_unlink(ext2_filsys fs
, ext2_ino_t dir
, const char *name
,
845 ext2_ino_t ino
, int flags
);
848 extern errcode_t
ext2fs_read_bb_inode(ext2_filsys fs
,
849 ext2_badblocks_list
*bb_list
);
852 extern errcode_t
ext2fs_read_bb_FILE2(ext2_filsys fs
, FILE *f
,
853 ext2_badblocks_list
*bb_list
,
855 void (*invalid
)(ext2_filsys fs
,
859 extern errcode_t
ext2fs_read_bb_FILE(ext2_filsys fs
, FILE *f
,
860 ext2_badblocks_list
*bb_list
,
861 void (*invalid
)(ext2_filsys fs
,
865 extern errcode_t
ext2fs_create_resize_inode(ext2_filsys fs
);
868 extern errcode_t
ext2fs_resize_generic_bitmap(__u32 new_end
,
870 ext2fs_generic_bitmap bmap
);
871 extern errcode_t
ext2fs_resize_inode_bitmap(__u32 new_end
, __u32 new_real_end
,
872 ext2fs_inode_bitmap bmap
);
873 extern errcode_t
ext2fs_resize_block_bitmap(__u32 new_end
, __u32 new_real_end
,
874 ext2fs_block_bitmap bmap
);
875 extern errcode_t
ext2fs_copy_bitmap(ext2fs_generic_bitmap src
,
876 ext2fs_generic_bitmap
*dest
);
879 extern void ext2fs_swap_ext_attr(char *to
, char *from
, int bufsize
,
881 extern void ext2fs_swap_super(struct ext2_super_block
* super
);
882 extern void ext2fs_swap_group_desc(struct ext2_group_desc
*gdp
);
883 extern void ext2fs_swap_inode_full(ext2_filsys fs
, struct ext2_inode_large
*t
,
884 struct ext2_inode_large
*f
, int hostorder
,
886 extern void ext2fs_swap_inode(ext2_filsys fs
,struct ext2_inode
*t
,
887 struct ext2_inode
*f
, int hostorder
);
890 extern int ext2fs_inode_has_valid_blocks(struct ext2_inode
*inode
);
893 extern int ext2fs_parse_version_string(const char *ver_string
);
894 extern int ext2fs_get_library_version(const char **ver_string
,
895 const char **date_string
);
897 /* write_bb_file.c */
898 extern errcode_t
ext2fs_write_bb_FILE(ext2_badblocks_list bb_list
,
903 /* inline functions */
904 extern errcode_t
ext2fs_get_mem(unsigned long size
, void *ptr
);
905 extern errcode_t
ext2fs_free_mem(void *ptr
);
906 extern errcode_t
ext2fs_resize_mem(unsigned long old_size
,
907 unsigned long size
, void *ptr
);
908 extern void ext2fs_mark_super_dirty(ext2_filsys fs
);
909 extern void ext2fs_mark_changed(ext2_filsys fs
);
910 extern int ext2fs_test_changed(ext2_filsys fs
);
911 extern void ext2fs_mark_valid(ext2_filsys fs
);
912 extern void ext2fs_unmark_valid(ext2_filsys fs
);
913 extern int ext2fs_test_valid(ext2_filsys fs
);
914 extern void ext2fs_mark_ib_dirty(ext2_filsys fs
);
915 extern void ext2fs_mark_bb_dirty(ext2_filsys fs
);
916 extern int ext2fs_test_ib_dirty(ext2_filsys fs
);
917 extern int ext2fs_test_bb_dirty(ext2_filsys fs
);
918 extern int ext2fs_group_of_blk(ext2_filsys fs
, blk_t blk
);
919 extern int ext2fs_group_of_ino(ext2_filsys fs
, ext2_ino_t ino
);
920 extern blk_t
ext2fs_inode_data_blocks(ext2_filsys fs
,
921 struct ext2_inode
*inode
);