4 * Copyright (C) 1993, 1994, 1995, 1996 Theodore Ts'o.
7 * This file may be redistributed under the terms of the GNU Library
8 * General Public License, version 2.
12 #ifndef _EXT2FS_EXT2FS_H
13 #define _EXT2FS_EXT2FS_H
16 #define EXT2FS_ATTR(x) __attribute__(x)
18 #define EXT2FS_ATTR(x)
26 * Non-GNU C compilers won't necessarily understand inline
28 #if (!defined(__GNUC__) && !defined(__WATCOMC__))
29 #define NO_INLINE_FUNCS
33 * Where the master copy of the superblock is located, and how big
34 * superblocks are supposed to be. We define SUPERBLOCK_SIZE because
35 * the size of the superblock structure is not necessarily trustworthy
36 * (some versions have the padding set up so that the superblock is
39 #define SUPERBLOCK_OFFSET 1024
40 #define SUPERBLOCK_SIZE 1024
43 * The last ext2fs revision level that this version of the library is
46 #define EXT2_LIB_CURRENT_REV EXT2_DYNAMIC_REV
48 #ifdef HAVE_SYS_TYPES_H
49 #include <sys/types.h>
57 #if EXT2_FLAT_INCLUDES
60 #include "ext3_extents.h"
62 #include <ext2fs/ext2_types.h>
63 #include <ext2fs/ext2_fs.h>
64 #include <ext2fs/ext3_extents.h>
65 #endif /* EXT2_FLAT_INCLUDES */
67 #ifdef __CHECK_ENDIAN__
68 #define __bitwise __attribute__((bitwise))
73 typedef __u32 __bitwise ext2_ino_t;
74 typedef __u32 __bitwise blk_t;
75 typedef __u64 __bitwise blk64_t;
76 typedef __u32 __bitwise dgrp_t;
77 typedef __u32 __bitwise ext2_off_t;
78 typedef __u64 __bitwise ext2_off64_t;
79 typedef __s64 __bitwise e2_blkcnt_t;
80 typedef __u32 __bitwise ext2_dirhash_t;
82 #if EXT2_FLAT_INCLUDES
86 #include "ext2_ext_attr.h"
88 #include <et/com_err.h>
89 #include <ext2fs/ext2_io.h>
90 #include <ext2fs/ext2_err.h>
91 #include <ext2fs/ext2_ext_attr.h>
95 * Portability help for Microsoft Visual C++
98 #define EXT2_QSORT_TYPE int __cdecl
100 #define EXT2_QSORT_TYPE int
103 typedef struct struct_ext2_filsys *ext2_filsys;
105 #define EXT2FS_MARK_ERROR 0
106 #define EXT2FS_UNMARK_ERROR 1
107 #define EXT2FS_TEST_ERROR 2
109 typedef struct ext2fs_struct_generic_bitmap *ext2fs_generic_bitmap;
110 typedef struct ext2fs_struct_generic_bitmap *ext2fs_inode_bitmap;
111 typedef struct ext2fs_struct_generic_bitmap *ext2fs_block_bitmap;
113 #define EXT2_FIRST_INODE(s) EXT2_FIRST_INO(s)
117 * Badblocks list definitions
120 typedef struct ext2_struct_u32_list *ext2_badblocks_list;
121 typedef struct ext2_struct_u32_iterate *ext2_badblocks_iterate;
123 typedef struct ext2_struct_u32_list *ext2_u32_list;
124 typedef struct ext2_struct_u32_iterate *ext2_u32_iterate;
127 typedef struct ext2_struct_u32_list *badblocks_list;
128 typedef struct ext2_struct_u32_iterate *badblocks_iterate;
130 #define BADBLOCKS_FLAG_DIRTY 1
133 * ext2_dblist structure and abstractions (see dblist.c)
135 struct ext2_db_entry2 {
138 e2_blkcnt_t blockcnt;
141 /* Ye Olde 32-bit version */
142 struct ext2_db_entry {
148 typedef struct ext2_struct_dblist *ext2_dblist;
150 #define DBLIST_ABORT 1
153 * ext2_fileio definitions
156 #define EXT2_FILE_WRITE 0x0001
157 #define EXT2_FILE_CREATE 0x0002
159 #define EXT2_FILE_MASK 0x00FF
161 #define EXT2_FILE_BUF_DIRTY 0x4000
162 #define EXT2_FILE_BUF_VALID 0x2000
164 typedef struct ext2_file *ext2_file_t;
166 #define EXT2_SEEK_SET 0
167 #define EXT2_SEEK_CUR 1
168 #define EXT2_SEEK_END 2
171 * Flags for the ext2_filsys structure and for ext2fs_open()
173 #define EXT2_FLAG_RW 0x01
174 #define EXT2_FLAG_CHANGED 0x02
175 #define EXT2_FLAG_DIRTY 0x04
176 #define EXT2_FLAG_VALID 0x08
177 #define EXT2_FLAG_IB_DIRTY 0x10
178 #define EXT2_FLAG_BB_DIRTY 0x20
179 #define EXT2_FLAG_SWAP_BYTES 0x40
180 #define EXT2_FLAG_SWAP_BYTES_READ 0x80
181 #define EXT2_FLAG_SWAP_BYTES_WRITE 0x100
182 #define EXT2_FLAG_MASTER_SB_ONLY 0x200
183 #define EXT2_FLAG_FORCE 0x400
184 #define EXT2_FLAG_SUPER_ONLY 0x800
185 #define EXT2_FLAG_JOURNAL_DEV_OK 0x1000
186 #define EXT2_FLAG_IMAGE_FILE 0x2000
187 #define EXT2_FLAG_EXCLUSIVE 0x4000
188 #define EXT2_FLAG_SOFTSUPP_FEATURES 0x8000
189 #define EXT2_FLAG_NOFREE_ON_ERROR 0x10000
190 #define EXT2_FLAG_64BITS 0x20000
191 #define EXT2_FLAG_PRINT_PROGRESS 0x40000
192 #define EXT2_FLAG_DIRECT_IO 0x80000
193 #define EXT2_FLAG_SKIP_MMP 0x100000
196 * Special flag in the ext2 inode i_flag field that means that this is
197 * a new inode. (So that ext2_write_inode() can clear extra fields.)
199 #define EXT2_NEW_INODE_FL 0x80000000
202 * Flags for mkjournal
204 #define EXT2_MKJOURNAL_V1_SUPER 0x0000001 /* create V1 superblock (deprecated) */
205 #define EXT2_MKJOURNAL_LAZYINIT 0x0000002 /* don't zero journal inode before use*/
206 #define EXT2_MKJOURNAL_NO_MNT_CHECK 0x0000004 /* don't check mount status */
208 struct opaque_ext2_group_desc;
210 struct struct_ext2_filsys {
215 struct ext2_super_block * super;
216 unsigned int blocksize;
218 dgrp_t group_desc_count;
219 unsigned long desc_blocks;
220 struct opaque_ext2_group_desc * group_desc;
221 unsigned int inode_blocks_per_group;
222 ext2fs_inode_bitmap inode_map;
223 ext2fs_block_bitmap block_map;
224 /* XXX FIXME-64: not 64-bit safe, but not used? */
225 errcode_t (*get_blocks)(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
226 errcode_t (*check_directory)(ext2_filsys fs, ext2_ino_t ino);
227 errcode_t (*write_bitmaps)(ext2_filsys fs);
228 errcode_t (*read_inode)(ext2_filsys fs, ext2_ino_t ino,
229 struct ext2_inode *inode);
230 errcode_t (*write_inode)(ext2_filsys fs, ext2_ino_t ino,
231 struct ext2_inode *inode);
232 ext2_badblocks_list badblocks;
234 __u32 stride; /* for mke2fs */
235 struct ext2_super_block * orig_super;
236 struct ext2_image_hdr * image_header;
239 int cluster_ratio_bits;
240 __u16 default_bitmap_type;
243 * Reserved for future expansion
248 * Reserved for the use of the calling application.
255 struct ext2_inode_cache *icache;
259 * More callback functions
261 errcode_t (*get_alloc_block)(ext2_filsys fs, blk64_t goal,
263 void (*block_alloc_stats)(ext2_filsys fs, blk64_t blk, int inuse);
266 * Buffers for Multiple mount protection(MMP) block.
273 * Time at which e2fsck last updated the MMP block.
275 long mmp_last_written;
278 #if EXT2_FLAT_INCLUDES
279 #include "e2_bitops.h"
281 #include <ext2fs/bitops.h>
285 * 64-bit bitmap backend types
287 #define EXT2FS_BMAP64_BITARRAY 1
288 #define EXT2FS_BMAP64_RBTREE 2
289 #define EXT2FS_BMAP64_AUTODIR 3
292 * Return flags for the block iterator functions
294 #define BLOCK_CHANGED 1
295 #define BLOCK_ABORT 2
296 #define BLOCK_ERROR 4
299 * Block interate flags
301 * BLOCK_FLAG_APPEND, or BLOCK_FLAG_HOLE, indicates that the interator
302 * function should be called on blocks where the block number is zero.
303 * This is used by ext2fs_expand_dir() to be able to add a new block
304 * to an inode. It can also be used for programs that want to be able
305 * to deal with files that contain "holes".
307 * BLOCK_FLAG_DEPTH_TRAVERSE indicates that the iterator function for
308 * the indirect, doubly indirect, etc. blocks should be called after
309 * all of the blocks containined in the indirect blocks are processed.
310 * This is useful if you are going to be deallocating blocks from an
313 * BLOCK_FLAG_DATA_ONLY indicates that the iterator function should be
314 * called for data blocks only.
316 * BLOCK_FLAG_READ_ONLY is a promise by the caller that it will not
317 * modify returned block number.
319 * BLOCK_FLAG_NO_LARGE is for internal use only. It informs
320 * ext2fs_block_iterate2 that large files won't be accepted.
322 #define BLOCK_FLAG_APPEND 1
323 #define BLOCK_FLAG_HOLE 1
324 #define BLOCK_FLAG_DEPTH_TRAVERSE 2
325 #define BLOCK_FLAG_DATA_ONLY 4
326 #define BLOCK_FLAG_READ_ONLY 8
328 #define BLOCK_FLAG_NO_LARGE 0x1000
331 * Magic "block count" return values for the block iterator function.
333 #define BLOCK_COUNT_IND (-1)
334 #define BLOCK_COUNT_DIND (-2)
335 #define BLOCK_COUNT_TIND (-3)
336 #define BLOCK_COUNT_TRANSLATOR (-4)
340 * Flags for ext2fs_move_blocks
342 #define EXT2_BMOVE_GET_DBLIST 0x0001
343 #define EXT2_BMOVE_DEBUG 0x0002
347 * Generic (non-filesystem layout specific) extents structure
350 #define EXT2_EXTENT_FLAGS_LEAF 0x0001
351 #define EXT2_EXTENT_FLAGS_UNINIT 0x0002
352 #define EXT2_EXTENT_FLAGS_SECOND_VISIT 0x0004
354 struct ext2fs_extent {
355 blk64_t e_pblk; /* first physical block */
356 blk64_t e_lblk; /* first logical block extent covers */
357 __u32 e_len; /* number of blocks covered by extent */
358 __u32 e_flags; /* extent flags */
361 typedef struct ext2_extent_handle *ext2_extent_handle_t;
362 typedef struct ext2_extent_path *ext2_extent_path_t;
365 * Flags used by ext2fs_extent_get()
367 #define EXT2_EXTENT_CURRENT 0x0000
368 #define EXT2_EXTENT_MOVE_MASK 0x000F
369 #define EXT2_EXTENT_ROOT 0x0001
370 #define EXT2_EXTENT_LAST_LEAF 0x0002
371 #define EXT2_EXTENT_FIRST_SIB 0x0003
372 #define EXT2_EXTENT_LAST_SIB 0x0004
373 #define EXT2_EXTENT_NEXT_SIB 0x0005
374 #define EXT2_EXTENT_PREV_SIB 0x0006
375 #define EXT2_EXTENT_NEXT_LEAF 0x0007
376 #define EXT2_EXTENT_PREV_LEAF 0x0008
377 #define EXT2_EXTENT_NEXT 0x0009
378 #define EXT2_EXTENT_PREV 0x000A
379 #define EXT2_EXTENT_UP 0x000B
380 #define EXT2_EXTENT_DOWN 0x000C
381 #define EXT2_EXTENT_DOWN_AND_LAST 0x000D
384 * Flags used by ext2fs_extent_insert()
386 #define EXT2_EXTENT_INSERT_AFTER 0x0001 /* insert after handle loc'n */
387 #define EXT2_EXTENT_INSERT_NOSPLIT 0x0002 /* insert may not cause split */
390 * Flags used by ext2fs_extent_delete()
392 #define EXT2_EXTENT_DELETE_KEEP_EMPTY 0x001 /* keep node if last extnt gone */
395 * Flags used by ext2fs_extent_set_bmap()
397 #define EXT2_EXTENT_SET_BMAP_UNINIT 0x0001
400 * Data structure returned by ext2fs_extent_get_info()
402 struct ext2_extent_info {
412 __u32 max_uninit_len;
416 * Flags for directory block reading and writing functions
418 #define EXT2_DIRBLOCK_V2_STRUCT 0x0001
421 * Return flags for the directory iterator functions
423 #define DIRENT_CHANGED 1
424 #define DIRENT_ABORT 2
425 #define DIRENT_ERROR 3
428 * Directory iterator flags
431 #define DIRENT_FLAG_INCLUDE_EMPTY 1
432 #define DIRENT_FLAG_INCLUDE_REMOVED 2
434 #define DIRENT_DOT_FILE 1
435 #define DIRENT_DOT_DOT_FILE 2
436 #define DIRENT_OTHER_FILE 3
437 #define DIRENT_DELETED_FILE 4
440 * Inode scan definitions
442 typedef struct ext2_struct_inode_scan *ext2_inode_scan;
447 #define EXT2_SF_CHK_BADBLOCKS 0x0001
448 #define EXT2_SF_BAD_INODE_BLK 0x0002
449 #define EXT2_SF_BAD_EXTRA_BYTES 0x0004
450 #define EXT2_SF_SKIP_MISSING_ITABLE 0x0008
451 #define EXT2_SF_DO_LAZY 0x0010
454 * ext2fs_check_if_mounted flags
456 #define EXT2_MF_MOUNTED 1
457 #define EXT2_MF_ISROOT 2
458 #define EXT2_MF_READONLY 4
459 #define EXT2_MF_SWAP 8
460 #define EXT2_MF_BUSY 16
463 * Ext2/linux mode flags. We define them here so that we don't need
464 * to depend on the OS's sys/stat.h, since we may be compiling on a
467 #define LINUX_S_IFMT 00170000
468 #define LINUX_S_IFSOCK 0140000
469 #define LINUX_S_IFLNK 0120000
470 #define LINUX_S_IFREG 0100000
471 #define LINUX_S_IFBLK 0060000
472 #define LINUX_S_IFDIR 0040000
473 #define LINUX_S_IFCHR 0020000
474 #define LINUX_S_IFIFO 0010000
475 #define LINUX_S_ISUID 0004000
476 #define LINUX_S_ISGID 0002000
477 #define LINUX_S_ISVTX 0001000
479 #define LINUX_S_IRWXU 00700
480 #define LINUX_S_IRUSR 00400
481 #define LINUX_S_IWUSR 00200
482 #define LINUX_S_IXUSR 00100
484 #define LINUX_S_IRWXG 00070
485 #define LINUX_S_IRGRP 00040
486 #define LINUX_S_IWGRP 00020
487 #define LINUX_S_IXGRP 00010
489 #define LINUX_S_IRWXO 00007
490 #define LINUX_S_IROTH 00004
491 #define LINUX_S_IWOTH 00002
492 #define LINUX_S_IXOTH 00001
494 #define LINUX_S_ISLNK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFLNK)
495 #define LINUX_S_ISREG(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFREG)
496 #define LINUX_S_ISDIR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFDIR)
497 #define LINUX_S_ISCHR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFCHR)
498 #define LINUX_S_ISBLK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFBLK)
499 #define LINUX_S_ISFIFO(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFIFO)
500 #define LINUX_S_ISSOCK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFSOCK)
503 * ext2 size of an inode
505 #define EXT2_I_SIZE(i) ((i)->i_size | ((__u64) (i)->i_size_high << 32))
508 * ext2_icount_t abstraction
510 #define EXT2_ICOUNT_OPT_INCREMENT 0x01
512 typedef struct ext2_icount *ext2_icount_t;
515 * Flags for ext2fs_bmap
517 #define BMAP_ALLOC 0x0001
518 #define BMAP_SET 0x0002
521 * Returned flags from ext2fs_bmap
523 #define BMAP_RET_UNINIT 0x0001
526 * Flags for imager.c functions
528 #define IMAGER_FLAG_INODEMAP 1
529 #define IMAGER_FLAG_SPARSEWRITE 2
532 * For checking structure magic numbers...
535 #define EXT2_CHECK_MAGIC(struct, code) \
536 if ((struct)->magic != (code)) return (code)
540 * For ext2 compression support
542 #define EXT2FS_COMPRESSED_BLKADDR ((blk_t) -1)
543 #define HOLE_BLKADDR(_b) ((_b) == 0 || (_b) == EXT2FS_COMPRESSED_BLKADDR)
546 * Features supported by this version of the library
548 #define EXT2_LIB_FEATURE_COMPAT_SUPP (EXT2_FEATURE_COMPAT_DIR_PREALLOC|\
549 EXT2_FEATURE_COMPAT_IMAGIC_INODES|\
550 EXT3_FEATURE_COMPAT_HAS_JOURNAL|\
551 EXT2_FEATURE_COMPAT_RESIZE_INODE|\
552 EXT2_FEATURE_COMPAT_DIR_INDEX|\
553 EXT2_FEATURE_COMPAT_EXT_ATTR|\
554 EXT4_FEATURE_COMPAT_SPARSE_SUPER2)
556 /* This #ifdef is temporary until compression is fully supported */
557 #ifdef ENABLE_COMPRESSION
558 #ifndef I_KNOW_THAT_COMPRESSION_IS_EXPERIMENTAL
559 /* If the below warning bugs you, then have
560 `CPPFLAGS=-DI_KNOW_THAT_COMPRESSION_IS_EXPERIMENTAL' in your
561 environment at configure time. */
562 #warning "Compression support is experimental"
564 #define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\
565 EXT2_FEATURE_INCOMPAT_COMPRESSION|\
566 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\
567 EXT2_FEATURE_INCOMPAT_META_BG|\
568 EXT3_FEATURE_INCOMPAT_RECOVER|\
569 EXT3_FEATURE_INCOMPAT_EXTENTS|\
570 EXT4_FEATURE_INCOMPAT_FLEX_BG|\
571 EXT4_FEATURE_INCOMPAT_MMP|\
572 EXT4_FEATURE_INCOMPAT_64BIT)
574 #define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\
575 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\
576 EXT2_FEATURE_INCOMPAT_META_BG|\
577 EXT3_FEATURE_INCOMPAT_RECOVER|\
578 EXT3_FEATURE_INCOMPAT_EXTENTS|\
579 EXT4_FEATURE_INCOMPAT_FLEX_BG|\
580 EXT4_FEATURE_INCOMPAT_MMP|\
581 EXT4_FEATURE_INCOMPAT_64BIT)
584 #define EXT2_LIB_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|\
585 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|\
586 EXT2_FEATURE_RO_COMPAT_LARGE_FILE|\
587 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|\
588 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|\
589 EXT4_FEATURE_RO_COMPAT_GDT_CSUM|\
590 EXT4_FEATURE_RO_COMPAT_BIGALLOC|\
591 EXT4_FEATURE_RO_COMPAT_QUOTA)
593 #define EXT2_LIB_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|\
594 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|\
595 EXT2_FEATURE_RO_COMPAT_LARGE_FILE|\
596 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|\
597 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|\
598 EXT4_FEATURE_RO_COMPAT_GDT_CSUM|\
599 EXT4_FEATURE_RO_COMPAT_BIGALLOC)
603 * These features are only allowed if EXT2_FLAG_SOFTSUPP_FEATURES is passed
606 #define EXT2_LIB_SOFTSUPP_INCOMPAT (0)
607 #define EXT2_LIB_SOFTSUPP_RO_COMPAT (EXT4_FEATURE_RO_COMPAT_REPLICA)
610 /* Translate a block number to a cluster number */
611 #define EXT2FS_CLUSTER_RATIO(fs) (1 << (fs)->cluster_ratio_bits)
612 #define EXT2FS_CLUSTER_MASK(fs) (EXT2FS_CLUSTER_RATIO(fs) - 1)
613 #define EXT2FS_B2C(fs, blk) ((blk) >> (fs)->cluster_ratio_bits)
614 /* Translate a cluster number to a block number */
615 #define EXT2FS_C2B(fs, cluster) ((cluster) << (fs)->cluster_ratio_bits)
616 /* Translate # of blks to # of clusters */
617 #define EXT2FS_NUM_B2C(fs, blks) (((blks) + EXT2FS_CLUSTER_MASK(fs)) >> \
618 (fs)->cluster_ratio_bits)
620 #if defined(HAVE_FSTAT64) && !defined(__OSX_AVAILABLE_BUT_DEPRECATED)
621 typedef struct stat64 ext2fs_struct_stat;
623 typedef struct stat ext2fs_struct_stat;
627 * For ext2fs_close2() and ext2fs_flush2(), this flag allows you to
628 * avoid the fsync call.
630 #define EXT2_FLAG_FLUSH_NO_SYNC 1
633 * function prototypes
636 /* The LARGE_FILE feature should be set if we have stored files 2GB+ in size */
637 static inline int ext2fs_needs_large_file_feature(unsigned long long file_size)
639 return file_size >= 0x80000000ULL;
643 extern errcode_t ext2fs_new_inode(ext2_filsys fs, ext2_ino_t dir, int mode,
644 ext2fs_inode_bitmap map, ext2_ino_t *ret);
645 extern errcode_t ext2fs_new_block(ext2_filsys fs, blk_t goal,
646 ext2fs_block_bitmap map, blk_t *ret);
647 extern errcode_t ext2fs_new_block2(ext2_filsys fs, blk64_t goal,
648 ext2fs_block_bitmap map, blk64_t *ret);
649 extern errcode_t ext2fs_get_free_blocks(ext2_filsys fs, blk_t start,
650 blk_t finish, int num,
651 ext2fs_block_bitmap map,
653 extern errcode_t ext2fs_get_free_blocks2(ext2_filsys fs, blk64_t start,
654 blk64_t finish, int num,
655 ext2fs_block_bitmap map,
657 extern errcode_t ext2fs_alloc_block(ext2_filsys fs, blk_t goal,
658 char *block_buf, blk_t *ret);
659 extern errcode_t ext2fs_alloc_block2(ext2_filsys fs, blk64_t goal,
660 char *block_buf, blk64_t *ret);
661 extern void ext2fs_set_alloc_block_callback(ext2_filsys fs,
662 errcode_t (*func)(ext2_filsys fs,
665 errcode_t (**old)(ext2_filsys fs,
670 extern int ext2fs_reserve_super_and_bgd(ext2_filsys fs,
672 ext2fs_block_bitmap bmap);
673 extern void ext2fs_set_block_alloc_stats_callback(ext2_filsys fs,
674 void (*func)(ext2_filsys fs,
677 void (**old)(ext2_filsys fs,
682 void ext2fs_inode_alloc_stats(ext2_filsys fs, ext2_ino_t ino, int inuse);
683 void ext2fs_inode_alloc_stats2(ext2_filsys fs, ext2_ino_t ino,
684 int inuse, int isdir);
685 void ext2fs_block_alloc_stats(ext2_filsys fs, blk_t blk, int inuse);
686 void ext2fs_block_alloc_stats2(ext2_filsys fs, blk64_t blk, int inuse);
687 void ext2fs_block_alloc_stats_range(ext2_filsys fs, blk64_t blk,
688 blk_t num, int inuse);
691 extern errcode_t ext2fs_allocate_tables(ext2_filsys fs);
692 extern errcode_t ext2fs_allocate_group_table(ext2_filsys fs, dgrp_t group,
693 ext2fs_block_bitmap bmap);
696 extern errcode_t ext2fs_u32_list_create(ext2_u32_list *ret, int size);
697 extern errcode_t ext2fs_u32_list_add(ext2_u32_list bb, __u32 blk);
698 extern int ext2fs_u32_list_find(ext2_u32_list bb, __u32 blk);
699 extern int ext2fs_u32_list_test(ext2_u32_list bb, blk_t blk);
700 extern errcode_t ext2fs_u32_list_iterate_begin(ext2_u32_list bb,
701 ext2_u32_iterate *ret);
702 extern int ext2fs_u32_list_iterate(ext2_u32_iterate iter, blk_t *blk);
703 extern void ext2fs_u32_list_iterate_end(ext2_u32_iterate iter);
704 extern errcode_t ext2fs_u32_copy(ext2_u32_list src, ext2_u32_list *dest);
705 extern int ext2fs_u32_list_equal(ext2_u32_list bb1, ext2_u32_list bb2);
707 extern errcode_t ext2fs_badblocks_list_create(ext2_badblocks_list *ret,
709 extern errcode_t ext2fs_badblocks_list_add(ext2_badblocks_list bb,
711 extern int ext2fs_badblocks_list_test(ext2_badblocks_list bb,
713 extern int ext2fs_u32_list_del(ext2_u32_list bb, __u32 blk);
714 extern void ext2fs_badblocks_list_del(ext2_u32_list bb, __u32 blk);
716 ext2fs_badblocks_list_iterate_begin(ext2_badblocks_list bb,
717 ext2_badblocks_iterate *ret);
718 extern int ext2fs_badblocks_list_iterate(ext2_badblocks_iterate iter,
720 extern void ext2fs_badblocks_list_iterate_end(ext2_badblocks_iterate iter);
721 extern errcode_t ext2fs_badblocks_copy(ext2_badblocks_list src,
722 ext2_badblocks_list *dest);
723 extern int ext2fs_badblocks_equal(ext2_badblocks_list bb1,
724 ext2_badblocks_list bb2);
725 extern int ext2fs_u32_list_count(ext2_u32_list bb);
728 extern errcode_t badblocks_list_create(badblocks_list *ret, int size);
729 extern errcode_t badblocks_list_add(badblocks_list bb, blk_t blk);
730 extern int badblocks_list_test(badblocks_list bb, blk_t blk);
731 extern errcode_t badblocks_list_iterate_begin(badblocks_list bb,
732 badblocks_iterate *ret);
733 extern int badblocks_list_iterate(badblocks_iterate iter, blk_t *blk);
734 extern void badblocks_list_iterate_end(badblocks_iterate iter);
735 extern void badblocks_list_free(badblocks_list bb);
738 extern errcode_t ext2fs_update_bb_inode(ext2_filsys fs,
739 ext2_badblocks_list bb_list);
742 extern void ext2fs_free_block_bitmap(ext2fs_block_bitmap bitmap);
743 extern void ext2fs_free_inode_bitmap(ext2fs_inode_bitmap bitmap);
744 extern errcode_t ext2fs_copy_bitmap(ext2fs_generic_bitmap src,
745 ext2fs_generic_bitmap *dest);
746 extern errcode_t ext2fs_write_inode_bitmap(ext2_filsys fs);
747 extern errcode_t ext2fs_write_block_bitmap (ext2_filsys fs);
748 extern errcode_t ext2fs_read_inode_bitmap (ext2_filsys fs);
749 extern errcode_t ext2fs_read_block_bitmap(ext2_filsys fs);
750 extern errcode_t ext2fs_allocate_block_bitmap(ext2_filsys fs,
752 ext2fs_block_bitmap *ret);
753 extern errcode_t ext2fs_allocate_subcluster_bitmap(ext2_filsys fs,
755 ext2fs_block_bitmap *ret);
756 extern int ext2fs_get_bitmap_granularity(ext2fs_block_bitmap bitmap);
757 extern errcode_t ext2fs_allocate_inode_bitmap(ext2_filsys fs,
759 ext2fs_inode_bitmap *ret);
760 extern errcode_t ext2fs_fudge_inode_bitmap_end(ext2fs_inode_bitmap bitmap,
761 ext2_ino_t end, ext2_ino_t *oend);
762 extern errcode_t ext2fs_fudge_block_bitmap_end(ext2fs_block_bitmap bitmap,
763 blk_t end, blk_t *oend);
764 extern errcode_t ext2fs_fudge_block_bitmap_end2(ext2fs_block_bitmap bitmap,
765 blk64_t end, blk64_t *oend);
766 extern void ext2fs_clear_inode_bitmap(ext2fs_inode_bitmap bitmap);
767 extern void ext2fs_clear_block_bitmap(ext2fs_block_bitmap bitmap);
768 extern errcode_t ext2fs_read_bitmaps(ext2_filsys fs);
769 extern errcode_t ext2fs_write_bitmaps(ext2_filsys fs);
770 extern errcode_t ext2fs_resize_inode_bitmap(__u32 new_end, __u32 new_real_end,
771 ext2fs_inode_bitmap bmap);
772 extern errcode_t ext2fs_resize_inode_bitmap2(__u64 new_end,
774 ext2fs_inode_bitmap bmap);
775 extern errcode_t ext2fs_resize_block_bitmap(__u32 new_end, __u32 new_real_end,
776 ext2fs_block_bitmap bmap);
777 extern errcode_t ext2fs_resize_block_bitmap2(__u64 new_end,
779 ext2fs_block_bitmap bmap);
780 extern errcode_t ext2fs_compare_block_bitmap(ext2fs_block_bitmap bm1,
781 ext2fs_block_bitmap bm2);
782 extern errcode_t ext2fs_compare_inode_bitmap(ext2fs_inode_bitmap bm1,
783 ext2fs_inode_bitmap bm2);
784 extern errcode_t ext2fs_set_inode_bitmap_range(ext2fs_inode_bitmap bmap,
785 ext2_ino_t start, unsigned int num,
787 extern errcode_t ext2fs_set_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
788 __u64 start, size_t num,
790 extern errcode_t ext2fs_get_inode_bitmap_range(ext2fs_inode_bitmap bmap,
791 ext2_ino_t start, unsigned int num,
793 extern errcode_t ext2fs_get_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
794 __u64 start, size_t num,
796 extern errcode_t ext2fs_set_block_bitmap_range(ext2fs_block_bitmap bmap,
797 blk_t start, unsigned int num,
799 extern errcode_t ext2fs_set_block_bitmap_range2(ext2fs_block_bitmap bmap,
800 blk64_t start, size_t num,
802 extern errcode_t ext2fs_get_block_bitmap_range(ext2fs_block_bitmap bmap,
803 blk_t start, unsigned int num,
805 extern errcode_t ext2fs_get_block_bitmap_range2(ext2fs_block_bitmap bmap,
806 blk64_t start, size_t num,
810 extern dgrp_t ext2fs_group_of_blk2(ext2_filsys fs, blk64_t);
811 extern blk64_t ext2fs_group_first_block2(ext2_filsys fs, dgrp_t group);
812 extern blk64_t ext2fs_group_last_block2(ext2_filsys fs, dgrp_t group);
813 extern int ext2fs_group_blocks_count(ext2_filsys fs, dgrp_t group);
814 extern blk64_t ext2fs_inode_data_blocks2(ext2_filsys fs,
815 struct ext2_inode *inode);
816 extern blk64_t ext2fs_inode_i_blocks(ext2_filsys fs,
817 struct ext2_inode *inode);
818 extern blk64_t ext2fs_blocks_count(struct ext2_super_block *super);
819 extern void ext2fs_blocks_count_set(struct ext2_super_block *super,
821 extern void ext2fs_blocks_count_add(struct ext2_super_block *super,
823 extern blk64_t ext2fs_r_blocks_count(struct ext2_super_block *super);
824 extern void ext2fs_r_blocks_count_set(struct ext2_super_block *super,
826 extern void ext2fs_r_blocks_count_add(struct ext2_super_block *super,
828 extern blk64_t ext2fs_free_blocks_count(struct ext2_super_block *super);
829 extern void ext2fs_free_blocks_count_set(struct ext2_super_block *super,
831 extern void ext2fs_free_blocks_count_add(struct ext2_super_block *super,
833 /* Block group descriptor accessor functions */
834 extern struct ext2_group_desc *ext2fs_group_desc(ext2_filsys fs,
835 struct opaque_ext2_group_desc *gdp,
837 extern blk64_t ext2fs_block_bitmap_loc(ext2_filsys fs, dgrp_t group);
838 extern void ext2fs_block_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
840 extern blk64_t ext2fs_inode_bitmap_loc(ext2_filsys fs, dgrp_t group);
841 extern void ext2fs_inode_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
843 extern blk64_t ext2fs_inode_table_loc(ext2_filsys fs, dgrp_t group);
844 extern void ext2fs_inode_table_loc_set(ext2_filsys fs, dgrp_t group,
846 extern __u32 ext2fs_bg_free_blocks_count(ext2_filsys fs, dgrp_t group);
847 extern void ext2fs_bg_free_blocks_count_set(ext2_filsys fs, dgrp_t group,
849 extern __u32 ext2fs_bg_free_inodes_count(ext2_filsys fs, dgrp_t group);
850 extern void ext2fs_bg_free_inodes_count_set(ext2_filsys fs, dgrp_t group,
852 extern __u32 ext2fs_bg_used_dirs_count(ext2_filsys fs, dgrp_t group);
853 extern void ext2fs_bg_used_dirs_count_set(ext2_filsys fs, dgrp_t group,
855 extern __u32 ext2fs_bg_itable_unused(ext2_filsys fs, dgrp_t group);
856 extern void ext2fs_bg_itable_unused_set(ext2_filsys fs, dgrp_t group,
858 extern __u16 ext2fs_bg_flags(ext2_filsys fs, dgrp_t group);
859 extern void ext2fs_bg_flags_zap(ext2_filsys fs, dgrp_t group);
860 extern int ext2fs_bg_flags_test(ext2_filsys fs, dgrp_t group, __u16 bg_flag);
861 extern void ext2fs_bg_flags_set(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
862 extern void ext2fs_bg_flags_clear(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
863 extern __u16 ext2fs_bg_checksum(ext2_filsys fs, dgrp_t group);
864 extern void ext2fs_bg_checksum_set(ext2_filsys fs, dgrp_t group, __u16 checksum);
865 extern blk64_t ext2fs_file_acl_block(ext2_filsys fs,
866 const struct ext2_inode *inode);
867 extern void ext2fs_file_acl_block_set(ext2_filsys fs,
868 struct ext2_inode *inode, blk64_t blk);
869 extern errcode_t ext2fs_inode_size_set(ext2_filsys fs, struct ext2_inode *inode,
873 extern errcode_t ext2fs_block_iterate(ext2_filsys fs,
877 int (*func)(ext2_filsys fs,
882 errcode_t ext2fs_block_iterate2(ext2_filsys fs,
886 int (*func)(ext2_filsys fs,
888 e2_blkcnt_t blockcnt,
893 errcode_t ext2fs_block_iterate3(ext2_filsys fs,
897 int (*func)(ext2_filsys fs,
899 e2_blkcnt_t blockcnt,
906 extern errcode_t ext2fs_bmap(ext2_filsys fs, ext2_ino_t ino,
907 struct ext2_inode *inode,
908 char *block_buf, int bmap_flags,
909 blk_t block, blk_t *phys_blk);
910 extern errcode_t ext2fs_bmap2(ext2_filsys fs, ext2_ino_t ino,
911 struct ext2_inode *inode,
912 char *block_buf, int bmap_flags, blk64_t block,
913 int *ret_flags, blk64_t *phys_blk);
914 errcode_t ext2fs_map_cluster_block(ext2_filsys fs, ext2_ino_t ino,
915 struct ext2_inode *inode, blk64_t lblk,
920 extern errcode_t ext2fs_move_blocks(ext2_filsys fs,
921 ext2fs_block_bitmap reserve,
922 ext2fs_block_bitmap alloc_map,
927 extern errcode_t ext2fs_check_desc(ext2_filsys fs);
930 extern errcode_t ext2fs_close(ext2_filsys fs);
931 extern errcode_t ext2fs_close2(ext2_filsys fs, int flags);
932 extern errcode_t ext2fs_close_free(ext2_filsys *fs);
933 extern errcode_t ext2fs_flush(ext2_filsys fs);
934 extern errcode_t ext2fs_flush2(ext2_filsys fs, int flags);
935 extern int ext2fs_bg_has_super(ext2_filsys fs, dgrp_t group_block);
936 extern errcode_t ext2fs_super_and_bgd_loc2(ext2_filsys fs,
938 blk64_t *ret_super_blk,
939 blk64_t *ret_old_desc_blk,
940 blk64_t *ret_new_desc_blk,
941 blk_t *ret_used_blks);
942 extern int ext2fs_super_and_bgd_loc(ext2_filsys fs,
944 blk_t *ret_super_blk,
945 blk_t *ret_old_desc_blk,
946 blk_t *ret_new_desc_blk,
948 extern void ext2fs_update_dynamic_rev(ext2_filsys fs);
951 extern __u32 ext2fs_crc32c_be(__u32 crc, unsigned char const *p, size_t len);
952 extern __u32 ext2fs_crc32c_le(__u32 crc, unsigned char const *p, size_t len);
955 extern void ext2fs_group_desc_csum_set(ext2_filsys fs, dgrp_t group);
956 extern int ext2fs_group_desc_csum_verify(ext2_filsys fs, dgrp_t group);
957 extern errcode_t ext2fs_set_gdt_csum(ext2_filsys fs);
958 extern __u16 ext2fs_group_desc_csum(ext2_filsys fs, dgrp_t group);
962 extern errcode_t ext2fs_get_num_dirs(ext2_filsys fs, ext2_ino_t *ret_num_dirs);
963 extern errcode_t ext2fs_init_dblist(ext2_filsys fs, ext2_dblist *ret_dblist);
964 extern errcode_t ext2fs_add_dir_block(ext2_dblist dblist, ext2_ino_t ino,
965 blk_t blk, int blockcnt);
966 extern errcode_t ext2fs_add_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
967 blk64_t blk, e2_blkcnt_t blockcnt);
968 extern void ext2fs_dblist_sort(ext2_dblist dblist,
969 EXT2_QSORT_TYPE (*sortfunc)(const void *,
971 extern void ext2fs_dblist_sort2(ext2_dblist dblist,
972 EXT2_QSORT_TYPE (*sortfunc)(const void *,
974 extern errcode_t ext2fs_dblist_iterate(ext2_dblist dblist,
975 int (*func)(ext2_filsys fs, struct ext2_db_entry *db_info,
978 extern errcode_t ext2fs_dblist_iterate2(ext2_dblist dblist,
979 int (*func)(ext2_filsys fs, struct ext2_db_entry2 *db_info,
982 extern errcode_t ext2fs_set_dir_block(ext2_dblist dblist, ext2_ino_t ino,
983 blk_t blk, int blockcnt);
984 extern errcode_t ext2fs_set_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
985 blk64_t blk, e2_blkcnt_t blockcnt);
986 extern errcode_t ext2fs_copy_dblist(ext2_dblist src,
988 extern int ext2fs_dblist_count(ext2_dblist dblist);
989 extern blk64_t ext2fs_dblist_count2(ext2_dblist dblist);
990 extern errcode_t ext2fs_dblist_get_last(ext2_dblist dblist,
991 struct ext2_db_entry **entry);
992 extern errcode_t ext2fs_dblist_get_last2(ext2_dblist dblist,
993 struct ext2_db_entry2 **entry);
994 extern errcode_t ext2fs_dblist_drop_last(ext2_dblist dblist);
998 ext2fs_dblist_dir_iterate(ext2_dblist dblist,
1001 int (*func)(ext2_ino_t dir,
1003 struct ext2_dir_entry *dirent,
1011 extern errcode_t ext2fs_read_dir_block(ext2_filsys fs, blk_t block,
1013 extern errcode_t ext2fs_read_dir_block2(ext2_filsys fs, blk_t block,
1014 void *buf, int flags);
1015 extern errcode_t ext2fs_read_dir_block3(ext2_filsys fs, blk64_t block,
1016 void *buf, int flags);
1017 extern errcode_t ext2fs_write_dir_block(ext2_filsys fs, blk_t block,
1019 extern errcode_t ext2fs_write_dir_block2(ext2_filsys fs, blk_t block,
1020 void *buf, int flags);
1021 extern errcode_t ext2fs_write_dir_block3(ext2_filsys fs, blk64_t block,
1022 void *buf, int flags);
1025 extern errcode_t ext2fs_dirhash(int version, const char *name, int len,
1027 ext2_dirhash_t *ret_hash,
1028 ext2_dirhash_t *ret_minor_hash);
1032 extern errcode_t ext2fs_get_rec_len(ext2_filsys fs,
1033 struct ext2_dir_entry *dirent,
1034 unsigned int *rec_len);
1035 extern errcode_t ext2fs_set_rec_len(ext2_filsys fs,
1037 struct ext2_dir_entry *dirent);
1038 extern errcode_t ext2fs_dir_iterate(ext2_filsys fs,
1042 int (*func)(struct ext2_dir_entry *dirent,
1048 extern errcode_t ext2fs_dir_iterate2(ext2_filsys fs,
1052 int (*func)(ext2_ino_t dir,
1054 struct ext2_dir_entry *dirent,
1062 extern errcode_t ext2fs_dup_handle(ext2_filsys src, ext2_filsys *dest);
1065 extern errcode_t ext2fs_expand_dir(ext2_filsys fs, ext2_ino_t dir);
1068 extern __u32 ext2fs_ext_attr_hash_entry(struct ext2_ext_attr_entry *entry,
1070 extern errcode_t ext2fs_read_ext_attr(ext2_filsys fs, blk_t block, void *buf);
1071 extern errcode_t ext2fs_read_ext_attr2(ext2_filsys fs, blk64_t block,
1073 extern errcode_t ext2fs_write_ext_attr(ext2_filsys fs, blk_t block,
1075 extern errcode_t ext2fs_write_ext_attr2(ext2_filsys fs, blk64_t block,
1077 extern errcode_t ext2fs_adjust_ea_refcount(ext2_filsys fs, blk_t blk,
1079 int adjust, __u32 *newcount);
1080 extern errcode_t ext2fs_adjust_ea_refcount2(ext2_filsys fs, blk64_t blk,
1082 int adjust, __u32 *newcount);
1085 extern errcode_t ext2fs_extent_header_verify(void *ptr, int size);
1086 extern errcode_t ext2fs_extent_open(ext2_filsys fs, ext2_ino_t ino,
1087 ext2_extent_handle_t *handle);
1088 extern errcode_t ext2fs_extent_open2(ext2_filsys fs, ext2_ino_t ino,
1089 struct ext2_inode *inode,
1090 ext2_extent_handle_t *ret_handle);
1091 extern void ext2fs_extent_free(ext2_extent_handle_t handle);
1092 extern errcode_t ext2fs_extent_get(ext2_extent_handle_t handle,
1093 int flags, struct ext2fs_extent *extent);
1094 extern errcode_t ext2fs_extent_node_split(ext2_extent_handle_t handle);
1095 extern errcode_t ext2fs_extent_replace(ext2_extent_handle_t handle, int flags,
1096 struct ext2fs_extent *extent);
1097 extern errcode_t ext2fs_extent_insert(ext2_extent_handle_t handle, int flags,
1098 struct ext2fs_extent *extent);
1099 extern errcode_t ext2fs_extent_set_bmap(ext2_extent_handle_t handle,
1100 blk64_t logical, blk64_t physical,
1102 extern errcode_t ext2fs_extent_delete(ext2_extent_handle_t handle, int flags);
1103 extern errcode_t ext2fs_extent_get_info(ext2_extent_handle_t handle,
1104 struct ext2_extent_info *info);
1105 extern errcode_t ext2fs_extent_goto(ext2_extent_handle_t handle,
1107 extern errcode_t ext2fs_extent_goto2(ext2_extent_handle_t handle,
1108 int leaf_level, blk64_t blk);
1109 extern errcode_t ext2fs_extent_fix_parents(ext2_extent_handle_t handle);
1112 extern errcode_t ext2fs_file_open2(ext2_filsys fs, ext2_ino_t ino,
1113 struct ext2_inode *inode,
1114 int flags, ext2_file_t *ret);
1115 extern errcode_t ext2fs_file_open(ext2_filsys fs, ext2_ino_t ino,
1116 int flags, ext2_file_t *ret);
1117 extern ext2_filsys ext2fs_file_get_fs(ext2_file_t file);
1118 struct ext2_inode *ext2fs_file_get_inode(ext2_file_t file);
1119 extern ext2_ino_t ext2fs_file_get_inode_num(ext2_file_t file);
1120 extern errcode_t ext2fs_file_close(ext2_file_t file);
1121 extern errcode_t ext2fs_file_flush(ext2_file_t file);
1122 extern errcode_t ext2fs_file_read(ext2_file_t file, void *buf,
1123 unsigned int wanted, unsigned int *got);
1124 extern errcode_t ext2fs_file_write(ext2_file_t file, const void *buf,
1125 unsigned int nbytes, unsigned int *written);
1126 extern errcode_t ext2fs_file_llseek(ext2_file_t file, __u64 offset,
1127 int whence, __u64 *ret_pos);
1128 extern errcode_t ext2fs_file_lseek(ext2_file_t file, ext2_off_t offset,
1129 int whence, ext2_off_t *ret_pos);
1130 errcode_t ext2fs_file_get_lsize(ext2_file_t file, __u64 *ret_size);
1131 extern ext2_off_t ext2fs_file_get_size(ext2_file_t file);
1132 extern errcode_t ext2fs_file_set_size(ext2_file_t file, ext2_off_t size);
1133 extern errcode_t ext2fs_file_set_size2(ext2_file_t file, ext2_off64_t size);
1136 extern char *ext2fs_find_block_device(dev_t device);
1139 extern errcode_t ext2fs_sync_device(int fd, int flushb);
1142 extern void ext2fs_free(ext2_filsys fs);
1143 extern void ext2fs_free_dblist(ext2_dblist dblist);
1144 extern void ext2fs_badblocks_list_free(ext2_badblocks_list bb);
1145 extern void ext2fs_u32_list_free(ext2_u32_list bb);
1148 extern void ext2fs_free_generic_bitmap(ext2fs_inode_bitmap bitmap);
1149 extern errcode_t ext2fs_make_generic_bitmap(errcode_t magic, ext2_filsys fs,
1150 __u32 start, __u32 end,
1152 const char *descr, char *init_map,
1153 ext2fs_generic_bitmap *ret);
1154 extern errcode_t ext2fs_allocate_generic_bitmap(__u32 start,
1158 ext2fs_generic_bitmap *ret);
1159 extern errcode_t ext2fs_copy_generic_bitmap(ext2fs_generic_bitmap src,
1160 ext2fs_generic_bitmap *dest);
1161 extern void ext2fs_clear_generic_bitmap(ext2fs_generic_bitmap bitmap);
1162 extern errcode_t ext2fs_fudge_generic_bitmap_end(ext2fs_inode_bitmap bitmap,
1167 extern void ext2fs_set_generic_bitmap_padding(ext2fs_generic_bitmap map);
1168 extern errcode_t ext2fs_resize_generic_bitmap(errcode_t magic,
1171 ext2fs_generic_bitmap bmap);
1172 extern errcode_t ext2fs_compare_generic_bitmap(errcode_t magic, errcode_t neq,
1173 ext2fs_generic_bitmap bm1,
1174 ext2fs_generic_bitmap bm2);
1175 extern errcode_t ext2fs_get_generic_bitmap_range(ext2fs_generic_bitmap bmap,
1177 __u32 start, __u32 num,
1179 extern errcode_t ext2fs_set_generic_bitmap_range(ext2fs_generic_bitmap bmap,
1181 __u32 start, __u32 num,
1183 extern errcode_t ext2fs_find_first_zero_generic_bitmap(ext2fs_generic_bitmap bitmap,
1184 __u32 start, __u32 end,
1186 extern errcode_t ext2fs_find_first_set_generic_bitmap(ext2fs_generic_bitmap bitmap,
1187 __u32 start, __u32 end,
1190 /* gen_bitmap64.c */
1192 /* Generate and print bitmap usage statistics */
1195 void ext2fs_free_generic_bmap(ext2fs_generic_bitmap bmap);
1196 errcode_t ext2fs_alloc_generic_bmap(ext2_filsys fs, errcode_t magic,
1197 int type, __u64 start, __u64 end,
1200 ext2fs_generic_bitmap *ret);
1201 errcode_t ext2fs_copy_generic_bmap(ext2fs_generic_bitmap src,
1202 ext2fs_generic_bitmap *dest);
1203 void ext2fs_clear_generic_bmap(ext2fs_generic_bitmap bitmap);
1204 errcode_t ext2fs_fudge_generic_bmap_end(ext2fs_generic_bitmap bitmap,
1206 __u64 end, __u64 *oend);
1207 void ext2fs_set_generic_bmap_padding(ext2fs_generic_bitmap bmap);
1208 errcode_t ext2fs_resize_generic_bmap(ext2fs_generic_bitmap bmap,
1210 __u64 new_real_end);
1211 errcode_t ext2fs_compare_generic_bmap(errcode_t neq,
1212 ext2fs_generic_bitmap bm1,
1213 ext2fs_generic_bitmap bm2);
1214 errcode_t ext2fs_get_generic_bmap_range(ext2fs_generic_bitmap bmap,
1215 __u64 start, unsigned int num,
1217 errcode_t ext2fs_set_generic_bmap_range(ext2fs_generic_bitmap bmap,
1218 __u64 start, unsigned int num,
1220 errcode_t ext2fs_convert_subcluster_bitmap(ext2_filsys fs,
1221 ext2fs_block_bitmap *bitmap);
1224 extern errcode_t ext2fs_get_device_size(const char *file, int blocksize,
1226 extern errcode_t ext2fs_get_device_size2(const char *file, int blocksize,
1227 blk64_t *retblocks);
1230 extern int ext2fs_get_dio_alignment(int fd);
1231 errcode_t ext2fs_get_device_sectsize(const char *file, int *sectsize);
1232 errcode_t ext2fs_get_device_phys_sectsize(const char *file, int *sectsize);
1235 errcode_t ext2fs_iblk_add_blocks(ext2_filsys fs, struct ext2_inode *inode,
1236 blk64_t num_blocks);
1237 errcode_t ext2fs_iblk_sub_blocks(ext2_filsys fs, struct ext2_inode *inode,
1238 blk64_t num_blocks);
1239 errcode_t ext2fs_iblk_set(ext2_filsys fs, struct ext2_inode *inode, blk64_t b);
1242 extern errcode_t ext2fs_image_inode_write(ext2_filsys fs, int fd, int flags);
1243 extern errcode_t ext2fs_image_inode_read(ext2_filsys fs, int fd, int flags);
1244 extern errcode_t ext2fs_image_super_write(ext2_filsys fs, int fd, int flags);
1245 extern errcode_t ext2fs_image_super_read(ext2_filsys fs, int fd, int flags);
1246 extern errcode_t ext2fs_image_bitmap_write(ext2_filsys fs, int fd, int flags);
1247 extern errcode_t ext2fs_image_bitmap_read(ext2_filsys fs, int fd, int flags);
1250 errcode_t ext2fs_read_ind_block(ext2_filsys fs, blk_t blk, void *buf);
1251 errcode_t ext2fs_write_ind_block(ext2_filsys fs, blk_t blk, void *buf);
1254 extern errcode_t ext2fs_initialize(const char *name, int flags,
1255 struct ext2_super_block *param,
1256 io_manager manager, ext2_filsys *ret_fs);
1259 extern void ext2fs_free_icount(ext2_icount_t icount);
1260 extern errcode_t ext2fs_create_icount_tdb(ext2_filsys fs, char *tdb_dir,
1261 int flags, ext2_icount_t *ret);
1262 extern errcode_t ext2fs_create_icount2(ext2_filsys fs, int flags,
1264 ext2_icount_t hint, ext2_icount_t *ret);
1265 extern errcode_t ext2fs_create_icount(ext2_filsys fs, int flags,
1267 ext2_icount_t *ret);
1268 extern errcode_t ext2fs_icount_fetch(ext2_icount_t icount, ext2_ino_t ino,
1270 extern errcode_t ext2fs_icount_increment(ext2_icount_t icount, ext2_ino_t ino,
1272 extern errcode_t ext2fs_icount_decrement(ext2_icount_t icount, ext2_ino_t ino,
1274 extern errcode_t ext2fs_icount_store(ext2_icount_t icount, ext2_ino_t ino,
1276 extern ext2_ino_t ext2fs_get_icount_size(ext2_icount_t icount);
1277 errcode_t ext2fs_icount_validate(ext2_icount_t icount, FILE *);
1281 extern errcode_t ext2fs_get_memalign(unsigned long size,
1282 unsigned long align, void *ptr);
1285 extern errcode_t ext2fs_flush_icache(ext2_filsys fs);
1286 extern errcode_t ext2fs_get_next_inode_full(ext2_inode_scan scan,
1288 struct ext2_inode *inode,
1290 extern errcode_t ext2fs_open_inode_scan(ext2_filsys fs, int buffer_blocks,
1291 ext2_inode_scan *ret_scan);
1292 extern void ext2fs_close_inode_scan(ext2_inode_scan scan);
1293 extern errcode_t ext2fs_get_next_inode(ext2_inode_scan scan, ext2_ino_t *ino,
1294 struct ext2_inode *inode);
1295 extern errcode_t ext2fs_inode_scan_goto_blockgroup(ext2_inode_scan scan,
1297 extern void ext2fs_set_inode_callback
1298 (ext2_inode_scan scan,
1299 errcode_t (*done_group)(ext2_filsys fs,
1300 ext2_inode_scan scan,
1303 void *done_group_data);
1304 extern int ext2fs_inode_scan_flags(ext2_inode_scan scan, int set_flags,
1306 extern errcode_t ext2fs_read_inode_full(ext2_filsys fs, ext2_ino_t ino,
1307 struct ext2_inode * inode,
1309 extern errcode_t ext2fs_read_inode (ext2_filsys fs, ext2_ino_t ino,
1310 struct ext2_inode * inode);
1311 extern errcode_t ext2fs_write_inode_full(ext2_filsys fs, ext2_ino_t ino,
1312 struct ext2_inode * inode,
1314 extern errcode_t ext2fs_write_inode(ext2_filsys fs, ext2_ino_t ino,
1315 struct ext2_inode * inode);
1316 extern errcode_t ext2fs_write_new_inode(ext2_filsys fs, ext2_ino_t ino,
1317 struct ext2_inode * inode);
1318 extern errcode_t ext2fs_get_blocks(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
1319 extern errcode_t ext2fs_check_directory(ext2_filsys fs, ext2_ino_t ino);
1322 extern io_manager inode_io_manager;
1323 extern errcode_t ext2fs_inode_io_intern(ext2_filsys fs, ext2_ino_t ino,
1325 extern errcode_t ext2fs_inode_io_intern2(ext2_filsys fs, ext2_ino_t ino,
1326 struct ext2_inode *inode,
1330 extern errcode_t ext2fs_check_if_mounted(const char *file, int *mount_flags);
1331 extern errcode_t ext2fs_check_mount_point(const char *device, int *mount_flags,
1332 char *mtpt, int mtlen);
1336 * NOTE: This function removes from an inode the blocks "start", "end", and
1337 * every block in between.
1339 extern errcode_t ext2fs_punch(ext2_filsys fs, ext2_ino_t ino,
1340 struct ext2_inode *inode,
1341 char *block_buf, blk64_t start,
1345 extern errcode_t ext2fs_lookup(ext2_filsys fs, ext2_ino_t dir, const char *name,
1346 int namelen, char *buf, ext2_ino_t *inode);
1347 extern errcode_t ext2fs_namei(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1348 const char *name, ext2_ino_t *inode);
1349 errcode_t ext2fs_namei_follow(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1350 const char *name, ext2_ino_t *inode);
1351 extern errcode_t ext2fs_follow_link(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1352 ext2_ino_t inode, ext2_ino_t *res_inode);
1355 int ext2fs_native_flag(void);
1358 extern errcode_t ext2fs_new_dir_block(ext2_filsys fs, ext2_ino_t dir_ino,
1359 ext2_ino_t parent_ino, char **block);
1362 extern errcode_t ext2fs_mkdir(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t inum,
1366 extern errcode_t ext2fs_zero_blocks(ext2_filsys fs, blk_t blk, int num,
1367 blk_t *ret_blk, int *ret_count);
1368 extern errcode_t ext2fs_zero_blocks2(ext2_filsys fs, blk64_t blk, int num,
1369 blk64_t *ret_blk, int *ret_count);
1370 extern errcode_t ext2fs_create_journal_superblock(ext2_filsys fs,
1371 __u32 num_blocks, int flags,
1373 extern errcode_t ext2fs_add_journal_device(ext2_filsys fs,
1374 ext2_filsys journal_dev);
1375 extern errcode_t ext2fs_add_journal_inode(ext2_filsys fs, blk_t num_blocks,
1377 extern errcode_t ext2fs_add_journal_inode2(ext2_filsys fs, blk_t num_blocks,
1378 blk64_t goal, int flags);
1379 extern int ext2fs_default_journal_size(__u64 num_blocks);
1380 extern int ext2fs_journal_sb_start(int blocksize);
1383 extern errcode_t ext2fs_open(const char *name, int flags, int superblock,
1384 unsigned int block_size, io_manager manager,
1385 ext2_filsys *ret_fs);
1386 extern errcode_t ext2fs_open2(const char *name, const char *io_options,
1387 int flags, int superblock,
1388 unsigned int block_size, io_manager manager,
1389 ext2_filsys *ret_fs);
1391 * The dgrp_t argument to these two functions is not actually a group number
1392 * but a block number offset within a group table! Convert with the formula
1393 * (group_number / groups_per_block).
1395 extern blk64_t ext2fs_descriptor_block_loc2(ext2_filsys fs,
1396 blk64_t group_block, dgrp_t i);
1397 extern blk_t ext2fs_descriptor_block_loc(ext2_filsys fs, blk_t group_block,
1399 errcode_t ext2fs_get_data_io(ext2_filsys fs, io_channel *old_io);
1400 errcode_t ext2fs_set_data_io(ext2_filsys fs, io_channel new_io);
1401 errcode_t ext2fs_rewrite_to_io(ext2_filsys fs, io_channel new_io);
1403 /* get_pathname.c */
1404 extern errcode_t ext2fs_get_pathname(ext2_filsys fs, ext2_ino_t dir, ext2_ino_t ino,
1408 errcode_t ext2fs_link(ext2_filsys fs, ext2_ino_t dir, const char *name,
1409 ext2_ino_t ino, int flags);
1410 errcode_t ext2fs_unlink(ext2_filsys fs, ext2_ino_t dir, const char *name,
1411 ext2_ino_t ino, int flags);
1414 errcode_t ext2fs_symlink(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t ino,
1415 const char *name, char *target);
1418 errcode_t ext2fs_mmp_read(ext2_filsys fs, blk64_t mmp_blk, void *buf);
1419 errcode_t ext2fs_mmp_write(ext2_filsys fs, blk64_t mmp_blk, void *buf);
1420 errcode_t ext2fs_mmp_clear(ext2_filsys fs);
1421 errcode_t ext2fs_mmp_init(ext2_filsys fs);
1422 errcode_t ext2fs_mmp_start(ext2_filsys fs);
1423 errcode_t ext2fs_mmp_update(ext2_filsys fs);
1424 errcode_t ext2fs_mmp_stop(ext2_filsys fs);
1425 unsigned ext2fs_mmp_new_seq(void);
1428 extern errcode_t ext2fs_read_bb_inode(ext2_filsys fs,
1429 ext2_badblocks_list *bb_list);
1431 /* read_bb_file.c */
1432 extern errcode_t ext2fs_read_bb_FILE2(ext2_filsys fs, FILE *f,
1433 ext2_badblocks_list *bb_list,
1435 void (*invalid)(ext2_filsys fs,
1439 extern errcode_t ext2fs_read_bb_FILE(ext2_filsys fs, FILE *f,
1440 ext2_badblocks_list *bb_list,
1441 void (*invalid)(ext2_filsys fs,
1445 extern errcode_t ext2fs_create_resize_inode(ext2_filsys fs);
1448 extern void ext2fs_swap_ext_attr(char *to, char *from, int bufsize,
1450 extern void ext2fs_swap_ext_attr_header(struct ext2_ext_attr_header *to_header,
1451 struct ext2_ext_attr_header *from_hdr);
1452 extern void ext2fs_swap_ext_attr_entry(struct ext2_ext_attr_entry *to_entry,
1453 struct ext2_ext_attr_entry *from_entry);
1454 extern void ext2fs_swap_super(struct ext2_super_block * super);
1455 extern void ext2fs_swap_group_desc(struct ext2_group_desc *gdp);
1456 extern void ext2fs_swap_group_desc2(ext2_filsys, struct ext2_group_desc *gdp);
1457 extern void ext2fs_swap_inode_full(ext2_filsys fs, struct ext2_inode_large *t,
1458 struct ext2_inode_large *f, int hostorder,
1460 extern void ext2fs_swap_inode(ext2_filsys fs,struct ext2_inode *t,
1461 struct ext2_inode *f, int hostorder);
1462 extern void ext2fs_swap_mmp(struct mmp_struct *mmp);
1465 extern int ext2fs_open_file(const char *pathname, int flags, mode_t mode);
1466 extern int ext2fs_stat(const char *path, ext2fs_struct_stat *buf);
1467 extern int ext2fs_fstat(int fd, ext2fs_struct_stat *buf);
1470 extern int ext2fs_inode_has_valid_blocks(struct ext2_inode *inode);
1471 extern int ext2fs_inode_has_valid_blocks2(ext2_filsys fs,
1472 struct ext2_inode *inode);
1475 extern int ext2fs_parse_version_string(const char *ver_string);
1476 extern int ext2fs_get_library_version(const char **ver_string,
1477 const char **date_string);
1479 /* write_bb_file.c */
1480 extern errcode_t ext2fs_write_bb_FILE(ext2_badblocks_list bb_list,
1485 /* inline functions */
1486 #ifdef NO_INLINE_FUNCS
1487 extern errcode_t ext2fs_get_mem(unsigned long size, void *ptr);
1488 extern errcode_t ext2fs_get_memzero(unsigned long size, void *ptr);
1489 extern errcode_t ext2fs_get_array(unsigned long count,
1490 unsigned long size, void *ptr);
1491 extern errcode_t ext2fs_get_arrayzero(unsigned long count,
1492 unsigned long size, void *ptr);
1493 extern errcode_t ext2fs_free_mem(void *ptr);
1494 extern errcode_t ext2fs_resize_mem(unsigned long old_size,
1495 unsigned long size, void *ptr);
1496 extern void ext2fs_mark_super_dirty(ext2_filsys fs);
1497 extern void ext2fs_mark_changed(ext2_filsys fs);
1498 extern int ext2fs_test_changed(ext2_filsys fs);
1499 extern void ext2fs_mark_valid(ext2_filsys fs);
1500 extern void ext2fs_unmark_valid(ext2_filsys fs);
1501 extern int ext2fs_test_valid(ext2_filsys fs);
1502 extern void ext2fs_mark_ib_dirty(ext2_filsys fs);
1503 extern void ext2fs_mark_bb_dirty(ext2_filsys fs);
1504 extern int ext2fs_test_ib_dirty(ext2_filsys fs);
1505 extern int ext2fs_test_bb_dirty(ext2_filsys fs);
1506 extern dgrp_t ext2fs_group_of_blk(ext2_filsys fs, blk_t blk);
1507 extern dgrp_t ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino);
1508 extern blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group);
1509 extern blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group);
1510 extern blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
1511 struct ext2_inode *inode);
1512 extern unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b);
1513 extern __u64 ext2fs_div64_ceil(__u64 a, __u64 b);
1517 * The actual inlined functions definitions themselves...
1519 * If NO_INLINE_FUNCS is defined, then we won't try to do inline
1522 #if (defined(INCLUDE_INLINE_FUNCS) || !defined(NO_INLINE_FUNCS))
1523 #ifdef INCLUDE_INLINE_FUNCS
1524 #define _INLINE_ extern
1526 #if (__STDC_VERSION__ >= 199901L)
1527 #define _INLINE_ inline
1530 #define _INLINE_ extern __inline__
1531 #else /* For Watcom C */
1532 #define _INLINE_ extern inline
1533 #endif /* __GNUC__ */
1534 #endif /* __STDC_VERSION__ >= 199901L */
1537 #ifndef EXT2_CUSTOM_MEMORY_ROUTINES
1540 * Allocate memory. The 'ptr' arg must point to a pointer.
1542 _INLINE_ errcode_t ext2fs_get_mem(unsigned long size, void *ptr)
1548 return EXT2_ET_NO_MEMORY;
1549 memcpy(ptr, &pp, sizeof (pp));
1553 _INLINE_ errcode_t ext2fs_get_memzero(unsigned long size, void *ptr)
1559 return EXT2_ET_NO_MEMORY;
1560 memset(pp, 0, size);
1561 memcpy(ptr, &pp, sizeof(pp));
1565 _INLINE_ errcode_t ext2fs_get_array(unsigned long count, unsigned long size, void *ptr)
1567 if (count && (-1UL)/count<size)
1568 return EXT2_ET_NO_MEMORY;
1569 return ext2fs_get_mem(count*size, ptr);
1572 _INLINE_ errcode_t ext2fs_get_arrayzero(unsigned long count,
1573 unsigned long size, void *ptr)
1577 if (count && (-1UL)/count<size)
1578 return EXT2_ET_NO_MEMORY;
1579 pp = calloc(count, size);
1581 return EXT2_ET_NO_MEMORY;
1582 memcpy(ptr, &pp, sizeof(pp));
1587 * Free memory. The 'ptr' arg must point to a pointer.
1589 _INLINE_ errcode_t ext2fs_free_mem(void *ptr)
1593 memcpy(&p, ptr, sizeof(p));
1596 memcpy(ptr, &p, sizeof(p));
1601 * Resize memory. The 'ptr' arg must point to a pointer.
1603 _INLINE_ errcode_t ext2fs_resize_mem(unsigned long EXT2FS_ATTR((unused)) old_size,
1604 unsigned long size, void *ptr)
1608 /* Use "memcpy" for pointer assignments here to avoid problems
1609 * with C99 strict type aliasing rules. */
1610 memcpy(&p, ptr, sizeof(p));
1611 p = realloc(p, size);
1613 return EXT2_ET_NO_MEMORY;
1614 memcpy(ptr, &p, sizeof(p));
1617 #endif /* Custom memory routines */
1620 * Mark a filesystem superblock as dirty
1622 _INLINE_ void ext2fs_mark_super_dirty(ext2_filsys fs)
1624 fs->flags |= EXT2_FLAG_DIRTY | EXT2_FLAG_CHANGED;
1628 * Mark a filesystem as changed
1630 _INLINE_ void ext2fs_mark_changed(ext2_filsys fs)
1632 fs->flags |= EXT2_FLAG_CHANGED;
1636 * Check to see if a filesystem has changed
1638 _INLINE_ int ext2fs_test_changed(ext2_filsys fs)
1640 return (fs->flags & EXT2_FLAG_CHANGED);
1644 * Mark a filesystem as valid
1646 _INLINE_ void ext2fs_mark_valid(ext2_filsys fs)
1648 fs->flags |= EXT2_FLAG_VALID;
1652 * Mark a filesystem as NOT valid
1654 _INLINE_ void ext2fs_unmark_valid(ext2_filsys fs)
1656 fs->flags &= ~EXT2_FLAG_VALID;
1660 * Check to see if a filesystem is valid
1662 _INLINE_ int ext2fs_test_valid(ext2_filsys fs)
1664 return (fs->flags & EXT2_FLAG_VALID);
1668 * Mark the inode bitmap as dirty
1670 _INLINE_ void ext2fs_mark_ib_dirty(ext2_filsys fs)
1672 fs->flags |= EXT2_FLAG_IB_DIRTY | EXT2_FLAG_CHANGED;
1676 * Mark the block bitmap as dirty
1678 _INLINE_ void ext2fs_mark_bb_dirty(ext2_filsys fs)
1680 fs->flags |= EXT2_FLAG_BB_DIRTY | EXT2_FLAG_CHANGED;
1684 * Check to see if a filesystem's inode bitmap is dirty
1686 _INLINE_ int ext2fs_test_ib_dirty(ext2_filsys fs)
1688 return (fs->flags & EXT2_FLAG_IB_DIRTY);
1692 * Check to see if a filesystem's block bitmap is dirty
1694 _INLINE_ int ext2fs_test_bb_dirty(ext2_filsys fs)
1696 return (fs->flags & EXT2_FLAG_BB_DIRTY);
1700 * Return the group # of a block
1702 _INLINE_ dgrp_t ext2fs_group_of_blk(ext2_filsys fs, blk_t blk)
1704 return ext2fs_group_of_blk2(fs, blk);
1707 * Return the group # of an inode number
1709 _INLINE_ dgrp_t ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino)
1711 return (ino - 1) / fs->super->s_inodes_per_group;
1715 * Return the first block (inclusive) in a group
1717 _INLINE_ blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group)
1719 return (blk_t) ext2fs_group_first_block2(fs, group);
1723 * Return the last block (inclusive) in a group
1725 _INLINE_ blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group)
1727 return (blk_t) ext2fs_group_last_block2(fs, group);
1730 _INLINE_ blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
1731 struct ext2_inode *inode)
1733 return (blk_t) ext2fs_inode_data_blocks2(fs, inode);
1737 * This is an efficient, overflow safe way of calculating ceil((1.0 * a) / b)
1739 _INLINE_ unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b)
1743 return ((a - 1) / b) + 1;
1746 _INLINE_ __u64 ext2fs_div64_ceil(__u64 a, __u64 b)
1750 return ((a - 1) / b) + 1;
1760 #endif /* _EXT2FS_EXT2FS_H */