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)
22 #define EXT2FS_NO_TDB_UNUSED
24 #define EXT2FS_NO_TDB_UNUSED EXT2FS_ATTR((unused))
32 * Non-GNU C compilers won't necessarily understand inline
34 #if (!defined(__GNUC__) && !defined(__WATCOMC__))
35 #define NO_INLINE_FUNCS
39 * Where the master copy of the superblock is located, and how big
40 * superblocks are supposed to be. We define SUPERBLOCK_SIZE because
41 * the size of the superblock structure is not necessarily trustworthy
42 * (some versions have the padding set up so that the superblock is
45 #define SUPERBLOCK_OFFSET 1024
46 #define SUPERBLOCK_SIZE 1024
48 #define UUID_STR_SIZE 37
51 * The last ext2fs revision level that this version of the library is
54 #define EXT2_LIB_CURRENT_REV EXT2_DYNAMIC_REV
56 #ifdef HAVE_SYS_TYPES_H
57 #include <sys/types.h>
66 #if EXT2_FLAT_INCLUDES
69 #include "ext3_extents.h"
71 #include <ext2fs/ext2_types.h>
72 #include <ext2fs/ext2_fs.h>
73 #include <ext2fs/ext3_extents.h>
74 #endif /* EXT2_FLAT_INCLUDES */
76 typedef __u32 __bitwise ext2_ino_t;
77 typedef __u32 __bitwise blk_t;
78 typedef __u64 __bitwise blk64_t;
79 typedef __u32 __bitwise dgrp_t;
80 typedef __u32 __bitwise ext2_off_t;
81 typedef __u64 __bitwise ext2_off64_t;
82 typedef __s64 __bitwise e2_blkcnt_t;
83 typedef __u32 __bitwise ext2_dirhash_t;
85 #if EXT2_FLAT_INCLUDES
89 #include "ext2_ext_attr.h"
91 #include <et/com_err.h>
92 #include <ext2fs/ext2_io.h>
93 #include <ext2fs/ext2_err.h>
94 #include <ext2fs/ext2_ext_attr.h>
98 * Portability help for Microsoft Visual C++
101 #define EXT2_QSORT_TYPE int __cdecl
103 #define EXT2_QSORT_TYPE int
106 typedef struct struct_ext2_filsys *ext2_filsys;
108 #define EXT2FS_MARK_ERROR 0
109 #define EXT2FS_UNMARK_ERROR 1
110 #define EXT2FS_TEST_ERROR 2
112 typedef struct ext2fs_struct_generic_bitmap *ext2fs_generic_bitmap;
113 typedef struct ext2fs_struct_generic_bitmap *ext2fs_inode_bitmap;
114 typedef struct ext2fs_struct_generic_bitmap *ext2fs_block_bitmap;
116 #define EXT2_FIRST_INODE(s) EXT2_FIRST_INO(s)
120 * Badblocks list definitions
123 typedef struct ext2_struct_u32_list *ext2_badblocks_list;
124 typedef struct ext2_struct_u32_iterate *ext2_badblocks_iterate;
126 typedef struct ext2_struct_u32_list *ext2_u32_list;
127 typedef struct ext2_struct_u32_iterate *ext2_u32_iterate;
130 typedef struct ext2_struct_u32_list *badblocks_list;
131 typedef struct ext2_struct_u32_iterate *badblocks_iterate;
133 #define BADBLOCKS_FLAG_DIRTY 1
136 * ext2_dblist structure and abstractions (see dblist.c)
138 struct ext2_db_entry2 {
141 e2_blkcnt_t blockcnt;
144 /* Ye Olde 32-bit version */
145 struct ext2_db_entry {
151 typedef struct ext2_struct_dblist *ext2_dblist;
153 #define DBLIST_ABORT 1
156 * ext2_fileio definitions
159 #define EXT2_FILE_WRITE 0x0001
160 #define EXT2_FILE_CREATE 0x0002
162 #define EXT2_FILE_MASK 0x00FF
164 #define EXT2_FILE_BUF_DIRTY 0x4000
165 #define EXT2_FILE_BUF_VALID 0x2000
167 typedef struct ext2_file *ext2_file_t;
169 #define EXT2_SEEK_SET 0
170 #define EXT2_SEEK_CUR 1
171 #define EXT2_SEEK_END 2
174 * Flags for the ext2_filsys structure and for ext2fs_open()
176 #define EXT2_FLAG_RW 0x01
177 #define EXT2_FLAG_CHANGED 0x02
178 #define EXT2_FLAG_DIRTY 0x04
179 #define EXT2_FLAG_VALID 0x08
180 #define EXT2_FLAG_IB_DIRTY 0x10
181 #define EXT2_FLAG_BB_DIRTY 0x20
182 #define EXT2_FLAG_SWAP_BYTES 0x40
183 #define EXT2_FLAG_SWAP_BYTES_READ 0x80
184 #define EXT2_FLAG_SWAP_BYTES_WRITE 0x100
185 #define EXT2_FLAG_MASTER_SB_ONLY 0x200
186 #define EXT2_FLAG_FORCE 0x400
187 #define EXT2_FLAG_SUPER_ONLY 0x800
188 #define EXT2_FLAG_JOURNAL_DEV_OK 0x1000
189 #define EXT2_FLAG_IMAGE_FILE 0x2000
190 #define EXT2_FLAG_EXCLUSIVE 0x4000
191 #define EXT2_FLAG_SOFTSUPP_FEATURES 0x8000
192 #define EXT2_FLAG_NOFREE_ON_ERROR 0x10000
193 #define EXT2_FLAG_64BITS 0x20000
194 #define EXT2_FLAG_PRINT_PROGRESS 0x40000
195 #define EXT2_FLAG_DIRECT_IO 0x80000
196 #define EXT2_FLAG_SKIP_MMP 0x100000
197 #define EXT2_FLAG_IGNORE_CSUM_ERRORS 0x200000
200 * Special flag in the ext2 inode i_flag field that means that this is
201 * a new inode. (So that ext2_write_inode() can clear extra fields.)
203 #define EXT2_NEW_INODE_FL 0x80000000
206 * Flags for mkjournal
208 #define EXT2_MKJOURNAL_V1_SUPER 0x0000001 /* create V1 superblock (deprecated) */
209 #define EXT2_MKJOURNAL_LAZYINIT 0x0000002 /* don't zero journal inode before use*/
210 #define EXT2_MKJOURNAL_NO_MNT_CHECK 0x0000004 /* don't check mount status */
212 struct blk_alloc_ctx;
213 struct opaque_ext2_group_desc;
215 struct struct_ext2_filsys {
220 struct ext2_super_block * super;
221 unsigned int blocksize;
223 dgrp_t group_desc_count;
224 unsigned long desc_blocks;
225 struct opaque_ext2_group_desc * group_desc;
226 unsigned int inode_blocks_per_group;
227 ext2fs_inode_bitmap inode_map;
228 ext2fs_block_bitmap block_map;
229 /* XXX FIXME-64: not 64-bit safe, but not used? */
230 errcode_t (*get_blocks)(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
231 errcode_t (*check_directory)(ext2_filsys fs, ext2_ino_t ino);
232 errcode_t (*write_bitmaps)(ext2_filsys fs);
233 errcode_t (*read_inode)(ext2_filsys fs, ext2_ino_t ino,
234 struct ext2_inode *inode);
235 errcode_t (*write_inode)(ext2_filsys fs, ext2_ino_t ino,
236 struct ext2_inode *inode);
237 ext2_badblocks_list badblocks;
239 __u32 stride; /* for mke2fs */
240 struct ext2_super_block * orig_super;
241 struct ext2_image_hdr * image_header;
244 int cluster_ratio_bits;
245 __u16 default_bitmap_type;
248 * Reserved for future expansion
253 * Reserved for the use of the calling application.
260 struct ext2_inode_cache *icache;
264 * More callback functions
266 errcode_t (*get_alloc_block)(ext2_filsys fs, blk64_t goal,
268 errcode_t (*get_alloc_block2)(ext2_filsys fs, blk64_t goal,
269 blk64_t *ret, struct blk_alloc_ctx *ctx);
270 void (*block_alloc_stats)(ext2_filsys fs, blk64_t blk, int inuse);
273 * Buffers for Multiple mount protection(MMP) block.
280 * Time at which e2fsck last updated the MMP block.
282 long mmp_last_written;
284 /* progress operation functions */
285 struct ext2fs_progress_ops *progress_ops;
287 /* Precomputed FS UUID checksum for seeding other checksums */
290 io_channel journal_io;
293 /* New block range allocation hooks */
294 errcode_t (*new_range)(ext2_filsys fs, int flags, blk64_t goal,
295 blk64_t len, blk64_t *pblk, blk64_t *plen);
296 void (*block_alloc_stats_range)(ext2_filsys fs, blk64_t blk, blk_t num,
300 #if EXT2_FLAT_INCLUDES
301 #include "e2_bitops.h"
303 #include <ext2fs/bitops.h>
307 * 64-bit bitmap backend types
309 #define EXT2FS_BMAP64_BITARRAY 1
310 #define EXT2FS_BMAP64_RBTREE 2
311 #define EXT2FS_BMAP64_AUTODIR 3
314 * Return flags for the block iterator functions
316 #define BLOCK_CHANGED 1
317 #define BLOCK_ABORT 2
318 #define BLOCK_ERROR 4
319 #define BLOCK_INLINE_DATA_CHANGED 8
322 * Block interate flags
324 * BLOCK_FLAG_APPEND, or BLOCK_FLAG_HOLE, indicates that the interator
325 * function should be called on blocks where the block number is zero.
326 * This is used by ext2fs_expand_dir() to be able to add a new block
327 * to an inode. It can also be used for programs that want to be able
328 * to deal with files that contain "holes".
330 * BLOCK_FLAG_DEPTH_TRAVERSE indicates that the iterator function for
331 * the indirect, doubly indirect, etc. blocks should be called after
332 * all of the blocks contained in the indirect blocks are processed.
333 * This is useful if you are going to be deallocating blocks from an
336 * BLOCK_FLAG_DATA_ONLY indicates that the iterator function should be
337 * called for data blocks only.
339 * BLOCK_FLAG_READ_ONLY is a promise by the caller that it will not
340 * modify returned block number.
342 * BLOCK_FLAG_NO_LARGE is for internal use only. It informs
343 * ext2fs_block_iterate2 that large files won't be accepted.
345 #define BLOCK_FLAG_APPEND 1
346 #define BLOCK_FLAG_HOLE 1
347 #define BLOCK_FLAG_DEPTH_TRAVERSE 2
348 #define BLOCK_FLAG_DATA_ONLY 4
349 #define BLOCK_FLAG_READ_ONLY 8
351 #define BLOCK_FLAG_NO_LARGE 0x1000
354 * Magic "block count" return values for the block iterator function.
356 #define BLOCK_COUNT_IND (-1)
357 #define BLOCK_COUNT_DIND (-2)
358 #define BLOCK_COUNT_TIND (-3)
359 #define BLOCK_COUNT_TRANSLATOR (-4)
361 #define BLOCK_ALLOC_UNKNOWN 0
362 #define BLOCK_ALLOC_DATA 1
363 #define BLOCK_ALLOC_METADATA 2
365 struct blk_alloc_ctx {
367 struct ext2_inode *inode;
374 * Flags for ext2fs_move_blocks
376 #define EXT2_BMOVE_GET_DBLIST 0x0001
377 #define EXT2_BMOVE_DEBUG 0x0002
381 * Generic (non-filesystem layout specific) extents structure
384 #define EXT2_EXTENT_FLAGS_LEAF 0x0001
385 #define EXT2_EXTENT_FLAGS_UNINIT 0x0002
386 #define EXT2_EXTENT_FLAGS_SECOND_VISIT 0x0004
388 struct ext2fs_extent {
389 blk64_t e_pblk; /* first physical block */
390 blk64_t e_lblk; /* first logical block extent covers */
391 __u32 e_len; /* number of blocks covered by extent */
392 __u32 e_flags; /* extent flags */
395 typedef struct ext2_extent_handle *ext2_extent_handle_t;
396 typedef struct ext2_extent_path *ext2_extent_path_t;
399 * Flags used by ext2fs_extent_get()
401 #define EXT2_EXTENT_CURRENT 0x0000
402 #define EXT2_EXTENT_MOVE_MASK 0x000F
403 #define EXT2_EXTENT_ROOT 0x0001
404 #define EXT2_EXTENT_LAST_LEAF 0x0002
405 #define EXT2_EXTENT_FIRST_SIB 0x0003
406 #define EXT2_EXTENT_LAST_SIB 0x0004
407 #define EXT2_EXTENT_NEXT_SIB 0x0005
408 #define EXT2_EXTENT_PREV_SIB 0x0006
409 #define EXT2_EXTENT_NEXT_LEAF 0x0007
410 #define EXT2_EXTENT_PREV_LEAF 0x0008
411 #define EXT2_EXTENT_NEXT 0x0009
412 #define EXT2_EXTENT_PREV 0x000A
413 #define EXT2_EXTENT_UP 0x000B
414 #define EXT2_EXTENT_DOWN 0x000C
415 #define EXT2_EXTENT_DOWN_AND_LAST 0x000D
418 * Flags used by ext2fs_extent_insert()
420 #define EXT2_EXTENT_INSERT_AFTER 0x0001 /* insert after handle loc'n */
421 #define EXT2_EXTENT_INSERT_NOSPLIT 0x0002 /* insert may not cause split */
424 * Flags used by ext2fs_extent_delete()
426 #define EXT2_EXTENT_DELETE_KEEP_EMPTY 0x001 /* keep node if last extent gone */
429 * Flags used by ext2fs_extent_set_bmap()
431 #define EXT2_EXTENT_SET_BMAP_UNINIT 0x0001
434 * Data structure returned by ext2fs_extent_get_info()
436 struct ext2_extent_info {
446 __u32 max_uninit_len;
450 * Flags for directory block reading and writing functions
452 #define EXT2_DIRBLOCK_V2_STRUCT 0x0001
455 * Return flags for the directory iterator functions
457 #define DIRENT_CHANGED 1
458 #define DIRENT_ABORT 2
459 #define DIRENT_ERROR 3
462 * Directory iterator flags
465 #define DIRENT_FLAG_INCLUDE_EMPTY 1
466 #define DIRENT_FLAG_INCLUDE_REMOVED 2
467 #define DIRENT_FLAG_INCLUDE_CSUM 4
468 #define DIRENT_FLAG_INCLUDE_INLINE_DATA 8
470 #define DIRENT_DOT_FILE 1
471 #define DIRENT_DOT_DOT_FILE 2
472 #define DIRENT_OTHER_FILE 3
473 #define DIRENT_DELETED_FILE 4
474 #define DIRENT_CHECKSUM 5
477 * Inode scan definitions
479 typedef struct ext2_struct_inode_scan *ext2_inode_scan;
484 #define EXT2_SF_CHK_BADBLOCKS 0x0001
485 #define EXT2_SF_BAD_INODE_BLK 0x0002
486 #define EXT2_SF_BAD_EXTRA_BYTES 0x0004
487 #define EXT2_SF_SKIP_MISSING_ITABLE 0x0008
488 #define EXT2_SF_DO_LAZY 0x0010
489 #define EXT2_SF_WARN_GARBAGE_INODES 0x0020
492 * ext2fs_check_if_mounted flags
494 #define EXT2_MF_MOUNTED 1
495 #define EXT2_MF_ISROOT 2
496 #define EXT2_MF_READONLY 4
497 #define EXT2_MF_SWAP 8
498 #define EXT2_MF_BUSY 16
501 * Ext2/linux mode flags. We define them here so that we don't need
502 * to depend on the OS's sys/stat.h, since we may be compiling on a
505 #define LINUX_S_IFMT 00170000
506 #define LINUX_S_IFSOCK 0140000
507 #define LINUX_S_IFLNK 0120000
508 #define LINUX_S_IFREG 0100000
509 #define LINUX_S_IFBLK 0060000
510 #define LINUX_S_IFDIR 0040000
511 #define LINUX_S_IFCHR 0020000
512 #define LINUX_S_IFIFO 0010000
513 #define LINUX_S_ISUID 0004000
514 #define LINUX_S_ISGID 0002000
515 #define LINUX_S_ISVTX 0001000
517 #define LINUX_S_IRWXU 00700
518 #define LINUX_S_IRUSR 00400
519 #define LINUX_S_IWUSR 00200
520 #define LINUX_S_IXUSR 00100
522 #define LINUX_S_IRWXG 00070
523 #define LINUX_S_IRGRP 00040
524 #define LINUX_S_IWGRP 00020
525 #define LINUX_S_IXGRP 00010
527 #define LINUX_S_IRWXO 00007
528 #define LINUX_S_IROTH 00004
529 #define LINUX_S_IWOTH 00002
530 #define LINUX_S_IXOTH 00001
532 #define LINUX_S_ISLNK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFLNK)
533 #define LINUX_S_ISREG(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFREG)
534 #define LINUX_S_ISDIR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFDIR)
535 #define LINUX_S_ISCHR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFCHR)
536 #define LINUX_S_ISBLK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFBLK)
537 #define LINUX_S_ISFIFO(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFIFO)
538 #define LINUX_S_ISSOCK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFSOCK)
541 * ext2 size of an inode
543 #define EXT2_I_SIZE(i) ((i)->i_size | ((__u64) (i)->i_size_high << 32))
546 * ext2_icount_t abstraction
548 #define EXT2_ICOUNT_OPT_INCREMENT 0x01
549 #define EXT2_ICOUNT_OPT_FULLMAP 0x02
551 typedef struct ext2_icount *ext2_icount_t;
554 * Flags for ext2fs_bmap
556 #define BMAP_ALLOC 0x0001
557 #define BMAP_SET 0x0002
558 #define BMAP_UNINIT 0x0004
559 #define BMAP_ZERO 0x0008
562 * Returned flags from ext2fs_bmap
564 #define BMAP_RET_UNINIT 0x0001
567 * Flags for imager.c functions
569 #define IMAGER_FLAG_INODEMAP 1
570 #define IMAGER_FLAG_SPARSEWRITE 2
573 * For checking structure magic numbers...
576 #define EXT2_CHECK_MAGIC(struct, code) \
577 if ((struct)->magic != (code)) return (code)
580 * Features supported by this version of the library
582 #define EXT2_LIB_FEATURE_COMPAT_SUPP (EXT2_FEATURE_COMPAT_DIR_PREALLOC|\
583 EXT2_FEATURE_COMPAT_IMAGIC_INODES|\
584 EXT3_FEATURE_COMPAT_HAS_JOURNAL|\
585 EXT2_FEATURE_COMPAT_RESIZE_INODE|\
586 EXT2_FEATURE_COMPAT_DIR_INDEX|\
587 EXT2_FEATURE_COMPAT_EXT_ATTR|\
588 EXT4_FEATURE_COMPAT_SPARSE_SUPER2)
591 #define EXT4_LIB_INCOMPAT_MMP EXT4_FEATURE_INCOMPAT_MMP
593 #define EXT4_LIB_INCOMPAT_MMP (0)
596 #define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\
597 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\
598 EXT2_FEATURE_INCOMPAT_META_BG|\
599 EXT3_FEATURE_INCOMPAT_RECOVER|\
600 EXT3_FEATURE_INCOMPAT_EXTENTS|\
601 EXT4_FEATURE_INCOMPAT_FLEX_BG|\
602 EXT4_FEATURE_INCOMPAT_EA_INODE|\
603 EXT4_LIB_INCOMPAT_MMP|\
604 EXT4_FEATURE_INCOMPAT_64BIT|\
605 EXT4_FEATURE_INCOMPAT_INLINE_DATA|\
606 EXT4_FEATURE_INCOMPAT_ENCRYPT|\
607 EXT4_FEATURE_INCOMPAT_CSUM_SEED|\
608 EXT4_FEATURE_INCOMPAT_LARGEDIR)
610 #define EXT2_LIB_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|\
611 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|\
612 EXT2_FEATURE_RO_COMPAT_LARGE_FILE|\
613 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|\
614 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|\
615 EXT4_FEATURE_RO_COMPAT_GDT_CSUM|\
616 EXT4_FEATURE_RO_COMPAT_BIGALLOC|\
617 EXT4_FEATURE_RO_COMPAT_QUOTA|\
618 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM|\
619 EXT4_FEATURE_RO_COMPAT_READONLY |\
620 EXT4_FEATURE_RO_COMPAT_PROJECT)
623 * These features are only allowed if EXT2_FLAG_SOFTSUPP_FEATURES is passed
626 #define EXT2_LIB_SOFTSUPP_INCOMPAT (0)
627 #define EXT2_LIB_SOFTSUPP_RO_COMPAT (EXT4_FEATURE_RO_COMPAT_REPLICA)
630 /* Translate a block number to a cluster number */
631 #define EXT2FS_CLUSTER_RATIO(fs) (1 << (fs)->cluster_ratio_bits)
632 #define EXT2FS_CLUSTER_MASK(fs) (EXT2FS_CLUSTER_RATIO(fs) - 1)
633 #define EXT2FS_B2C(fs, blk) ((blk) >> (fs)->cluster_ratio_bits)
634 /* Translate a cluster number to a block number */
635 #define EXT2FS_C2B(fs, cluster) ((cluster) << (fs)->cluster_ratio_bits)
636 /* Translate # of blks to # of clusters */
637 #define EXT2FS_NUM_B2C(fs, blks) (((blks) + EXT2FS_CLUSTER_MASK(fs)) >> \
638 (fs)->cluster_ratio_bits)
640 #if defined(HAVE_FSTAT64) && !defined(__OSX_AVAILABLE_BUT_DEPRECATED)
641 typedef struct stat64 ext2fs_struct_stat;
643 typedef struct stat ext2fs_struct_stat;
647 * For ext2fs_close2() and ext2fs_flush2(), this flag allows you to
648 * avoid the fsync call.
650 #define EXT2_FLAG_FLUSH_NO_SYNC 1
653 * Modify and iterate extended attributes
655 struct ext2_xattr_handle;
656 #define XATTR_ABORT 1
657 #define XATTR_CHANGED 2
660 * function prototypes
662 static inline int ext2fs_has_group_desc_csum(ext2_filsys fs)
664 return ext2fs_has_feature_metadata_csum(fs->super) ||
665 ext2fs_has_feature_gdt_csum(fs->super);
668 /* The LARGE_FILE feature should be set if we have stored files 2GB+ in size */
669 static inline int ext2fs_needs_large_file_feature(unsigned long long file_size)
671 return file_size >= 0x80000000ULL;
675 extern void ext2fs_clear_block_uninit(ext2_filsys fs, dgrp_t group);
676 extern errcode_t ext2fs_new_inode(ext2_filsys fs, ext2_ino_t dir, int mode,
677 ext2fs_inode_bitmap map, ext2_ino_t *ret);
678 extern errcode_t ext2fs_new_block(ext2_filsys fs, blk_t goal,
679 ext2fs_block_bitmap map, blk_t *ret);
680 extern errcode_t ext2fs_new_block2(ext2_filsys fs, blk64_t goal,
681 ext2fs_block_bitmap map, blk64_t *ret);
682 extern errcode_t ext2fs_new_block3(ext2_filsys fs, blk64_t goal,
683 ext2fs_block_bitmap map, blk64_t *ret,
684 struct blk_alloc_ctx *ctx);
685 extern errcode_t ext2fs_get_free_blocks(ext2_filsys fs, blk_t start,
686 blk_t finish, int num,
687 ext2fs_block_bitmap map,
689 extern errcode_t ext2fs_get_free_blocks2(ext2_filsys fs, blk64_t start,
690 blk64_t finish, int num,
691 ext2fs_block_bitmap map,
693 extern errcode_t ext2fs_alloc_block(ext2_filsys fs, blk_t goal,
694 char *block_buf, blk_t *ret);
695 extern errcode_t ext2fs_alloc_block2(ext2_filsys fs, blk64_t goal,
696 char *block_buf, blk64_t *ret);
697 extern errcode_t ext2fs_alloc_block3(ext2_filsys fs, blk64_t goal,
698 char *block_buf, blk64_t *ret,
699 struct blk_alloc_ctx *ctx);
701 extern void ext2fs_set_alloc_block_callback(ext2_filsys fs,
702 errcode_t (*func)(ext2_filsys fs,
705 errcode_t (**old)(ext2_filsys fs,
708 blk64_t ext2fs_find_inode_goal(ext2_filsys fs, ext2_ino_t ino,
709 struct ext2_inode *inode, blk64_t lblk);
710 extern void ext2fs_set_new_range_callback(ext2_filsys fs,
711 errcode_t (*func)(ext2_filsys fs, int flags, blk64_t goal,
712 blk64_t len, blk64_t *pblk, blk64_t *plen),
713 errcode_t (**old)(ext2_filsys fs, int flags, blk64_t goal,
714 blk64_t len, blk64_t *pblk, blk64_t *plen));
715 extern void ext2fs_set_block_alloc_stats_range_callback(ext2_filsys fs,
716 void (*func)(ext2_filsys fs, blk64_t blk,
717 blk_t num, int inuse),
718 void (**old)(ext2_filsys fs, blk64_t blk,
719 blk_t num, int inuse));
720 #define EXT2_NEWRANGE_FIXED_GOAL (0x1)
721 #define EXT2_NEWRANGE_MIN_LENGTH (0x2)
722 #define EXT2_NEWRANGE_ALL_FLAGS (0x3)
723 errcode_t ext2fs_new_range(ext2_filsys fs, int flags, blk64_t goal,
724 blk64_t len, ext2fs_block_bitmap map, blk64_t *pblk,
726 #define EXT2_ALLOCRANGE_FIXED_GOAL (0x1)
727 #define EXT2_ALLOCRANGE_ZERO_BLOCKS (0x2)
728 #define EXT2_ALLOCRANGE_ALL_FLAGS (0x3)
729 errcode_t ext2fs_alloc_range(ext2_filsys fs, int flags, blk64_t goal,
730 blk_t len, blk64_t *ret);
733 extern int ext2fs_reserve_super_and_bgd(ext2_filsys fs,
735 ext2fs_block_bitmap bmap);
736 extern void ext2fs_set_block_alloc_stats_callback(ext2_filsys fs,
737 void (*func)(ext2_filsys fs,
740 void (**old)(ext2_filsys fs,
745 void ext2fs_inode_alloc_stats(ext2_filsys fs, ext2_ino_t ino, int inuse);
746 void ext2fs_inode_alloc_stats2(ext2_filsys fs, ext2_ino_t ino,
747 int inuse, int isdir);
748 void ext2fs_block_alloc_stats(ext2_filsys fs, blk_t blk, int inuse);
749 void ext2fs_block_alloc_stats2(ext2_filsys fs, blk64_t blk, int inuse);
750 void ext2fs_block_alloc_stats_range(ext2_filsys fs, blk64_t blk,
751 blk_t num, int inuse);
754 extern errcode_t ext2fs_allocate_tables(ext2_filsys fs);
755 extern errcode_t ext2fs_allocate_group_table(ext2_filsys fs, dgrp_t group,
756 ext2fs_block_bitmap bmap);
759 extern errcode_t ext2fs_u32_list_create(ext2_u32_list *ret, int size);
760 extern errcode_t ext2fs_u32_list_add(ext2_u32_list bb, __u32 blk);
761 extern int ext2fs_u32_list_find(ext2_u32_list bb, __u32 blk);
762 extern int ext2fs_u32_list_test(ext2_u32_list bb, blk_t blk);
763 extern errcode_t ext2fs_u32_list_iterate_begin(ext2_u32_list bb,
764 ext2_u32_iterate *ret);
765 extern int ext2fs_u32_list_iterate(ext2_u32_iterate iter, blk_t *blk);
766 extern void ext2fs_u32_list_iterate_end(ext2_u32_iterate iter);
767 extern errcode_t ext2fs_u32_copy(ext2_u32_list src, ext2_u32_list *dest);
768 extern int ext2fs_u32_list_equal(ext2_u32_list bb1, ext2_u32_list bb2);
770 extern errcode_t ext2fs_badblocks_list_create(ext2_badblocks_list *ret,
772 extern errcode_t ext2fs_badblocks_list_add(ext2_badblocks_list bb,
774 extern int ext2fs_badblocks_list_test(ext2_badblocks_list bb,
776 extern int ext2fs_u32_list_del(ext2_u32_list bb, __u32 blk);
777 extern void ext2fs_badblocks_list_del(ext2_u32_list bb, __u32 blk);
779 ext2fs_badblocks_list_iterate_begin(ext2_badblocks_list bb,
780 ext2_badblocks_iterate *ret);
781 extern int ext2fs_badblocks_list_iterate(ext2_badblocks_iterate iter,
783 extern void ext2fs_badblocks_list_iterate_end(ext2_badblocks_iterate iter);
784 extern errcode_t ext2fs_badblocks_copy(ext2_badblocks_list src,
785 ext2_badblocks_list *dest);
786 extern int ext2fs_badblocks_equal(ext2_badblocks_list bb1,
787 ext2_badblocks_list bb2);
788 extern int ext2fs_u32_list_count(ext2_u32_list bb);
791 extern errcode_t badblocks_list_create(badblocks_list *ret, int size);
792 extern errcode_t badblocks_list_add(badblocks_list bb, blk_t blk);
793 extern int badblocks_list_test(badblocks_list bb, blk_t blk);
794 extern errcode_t badblocks_list_iterate_begin(badblocks_list bb,
795 badblocks_iterate *ret);
796 extern int badblocks_list_iterate(badblocks_iterate iter, blk_t *blk);
797 extern void badblocks_list_iterate_end(badblocks_iterate iter);
798 extern void badblocks_list_free(badblocks_list bb);
801 extern errcode_t ext2fs_update_bb_inode(ext2_filsys fs,
802 ext2_badblocks_list bb_list);
805 extern void ext2fs_free_block_bitmap(ext2fs_block_bitmap bitmap);
806 extern void ext2fs_free_inode_bitmap(ext2fs_inode_bitmap bitmap);
807 extern errcode_t ext2fs_copy_bitmap(ext2fs_generic_bitmap src,
808 ext2fs_generic_bitmap *dest);
809 extern errcode_t ext2fs_write_inode_bitmap(ext2_filsys fs);
810 extern errcode_t ext2fs_write_block_bitmap (ext2_filsys fs);
811 extern errcode_t ext2fs_read_inode_bitmap (ext2_filsys fs);
812 extern errcode_t ext2fs_read_block_bitmap(ext2_filsys fs);
813 extern errcode_t ext2fs_allocate_block_bitmap(ext2_filsys fs,
815 ext2fs_block_bitmap *ret);
816 extern errcode_t ext2fs_allocate_subcluster_bitmap(ext2_filsys fs,
818 ext2fs_block_bitmap *ret);
819 extern int ext2fs_get_bitmap_granularity(ext2fs_block_bitmap bitmap);
820 extern errcode_t ext2fs_allocate_inode_bitmap(ext2_filsys fs,
822 ext2fs_inode_bitmap *ret);
823 extern errcode_t ext2fs_fudge_inode_bitmap_end(ext2fs_inode_bitmap bitmap,
824 ext2_ino_t end, ext2_ino_t *oend);
825 extern errcode_t ext2fs_fudge_block_bitmap_end(ext2fs_block_bitmap bitmap,
826 blk_t end, blk_t *oend);
827 extern errcode_t ext2fs_fudge_block_bitmap_end2(ext2fs_block_bitmap bitmap,
828 blk64_t end, blk64_t *oend);
829 extern void ext2fs_clear_inode_bitmap(ext2fs_inode_bitmap bitmap);
830 extern void ext2fs_clear_block_bitmap(ext2fs_block_bitmap bitmap);
831 extern errcode_t ext2fs_read_bitmaps(ext2_filsys fs);
832 extern errcode_t ext2fs_write_bitmaps(ext2_filsys fs);
833 extern errcode_t ext2fs_resize_inode_bitmap(__u32 new_end, __u32 new_real_end,
834 ext2fs_inode_bitmap bmap);
835 extern errcode_t ext2fs_resize_inode_bitmap2(__u64 new_end,
837 ext2fs_inode_bitmap bmap);
838 extern errcode_t ext2fs_resize_block_bitmap(__u32 new_end, __u32 new_real_end,
839 ext2fs_block_bitmap bmap);
840 extern errcode_t ext2fs_resize_block_bitmap2(__u64 new_end,
842 ext2fs_block_bitmap bmap);
843 extern errcode_t ext2fs_compare_block_bitmap(ext2fs_block_bitmap bm1,
844 ext2fs_block_bitmap bm2);
845 extern errcode_t ext2fs_compare_inode_bitmap(ext2fs_inode_bitmap bm1,
846 ext2fs_inode_bitmap bm2);
847 extern errcode_t ext2fs_set_inode_bitmap_range(ext2fs_inode_bitmap bmap,
848 ext2_ino_t start, unsigned int num,
850 extern errcode_t ext2fs_set_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
851 __u64 start, size_t num,
853 extern errcode_t ext2fs_get_inode_bitmap_range(ext2fs_inode_bitmap bmap,
854 ext2_ino_t start, unsigned int num,
856 extern errcode_t ext2fs_get_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
857 __u64 start, size_t num,
859 extern errcode_t ext2fs_set_block_bitmap_range(ext2fs_block_bitmap bmap,
860 blk_t start, unsigned int num,
862 extern errcode_t ext2fs_set_block_bitmap_range2(ext2fs_block_bitmap bmap,
863 blk64_t start, size_t num,
865 extern errcode_t ext2fs_get_block_bitmap_range(ext2fs_block_bitmap bmap,
866 blk_t start, unsigned int num,
868 extern errcode_t ext2fs_get_block_bitmap_range2(ext2fs_block_bitmap bmap,
869 blk64_t start, size_t num,
873 extern __u32 ext2fs_inode_bitmap_checksum(ext2_filsys fs, dgrp_t group);
874 extern __u32 ext2fs_block_bitmap_checksum(ext2_filsys fs, dgrp_t group);
875 extern dgrp_t ext2fs_group_of_blk2(ext2_filsys fs, blk64_t);
876 extern blk64_t ext2fs_group_first_block2(ext2_filsys fs, dgrp_t group);
877 extern blk64_t ext2fs_group_last_block2(ext2_filsys fs, dgrp_t group);
878 extern int ext2fs_group_blocks_count(ext2_filsys fs, dgrp_t group);
879 extern blk64_t ext2fs_inode_data_blocks2(ext2_filsys fs,
880 struct ext2_inode *inode);
881 extern blk64_t ext2fs_inode_i_blocks(ext2_filsys fs,
882 struct ext2_inode *inode);
883 extern blk64_t ext2fs_blocks_count(struct ext2_super_block *super);
884 extern void ext2fs_blocks_count_set(struct ext2_super_block *super,
886 extern void ext2fs_blocks_count_add(struct ext2_super_block *super,
888 extern blk64_t ext2fs_r_blocks_count(struct ext2_super_block *super);
889 extern void ext2fs_r_blocks_count_set(struct ext2_super_block *super,
891 extern void ext2fs_r_blocks_count_add(struct ext2_super_block *super,
893 extern blk64_t ext2fs_free_blocks_count(struct ext2_super_block *super);
894 extern void ext2fs_free_blocks_count_set(struct ext2_super_block *super,
896 extern void ext2fs_free_blocks_count_add(struct ext2_super_block *super,
898 /* Block group descriptor accessor functions */
899 extern struct ext2_group_desc *ext2fs_group_desc(ext2_filsys fs,
900 struct opaque_ext2_group_desc *gdp,
902 extern blk64_t ext2fs_block_bitmap_csum(ext2_filsys fs, dgrp_t group);
903 extern blk64_t ext2fs_block_bitmap_loc(ext2_filsys fs, dgrp_t group);
904 extern void ext2fs_block_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
906 extern __u32 ext2fs_inode_bitmap_csum(ext2_filsys fs, dgrp_t group);
907 extern blk64_t ext2fs_inode_bitmap_loc(ext2_filsys fs, dgrp_t group);
908 extern void ext2fs_inode_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
910 extern blk64_t ext2fs_inode_table_loc(ext2_filsys fs, dgrp_t group);
911 extern void ext2fs_inode_table_loc_set(ext2_filsys fs, dgrp_t group,
913 extern __u32 ext2fs_bg_free_blocks_count(ext2_filsys fs, dgrp_t group);
914 extern void ext2fs_bg_free_blocks_count_set(ext2_filsys fs, dgrp_t group,
916 extern __u32 ext2fs_bg_free_inodes_count(ext2_filsys fs, dgrp_t group);
917 extern void ext2fs_bg_free_inodes_count_set(ext2_filsys fs, dgrp_t group,
919 extern __u32 ext2fs_bg_used_dirs_count(ext2_filsys fs, dgrp_t group);
920 extern void ext2fs_bg_used_dirs_count_set(ext2_filsys fs, dgrp_t group,
922 extern __u32 ext2fs_bg_itable_unused(ext2_filsys fs, dgrp_t group);
923 extern void ext2fs_bg_itable_unused_set(ext2_filsys fs, dgrp_t group,
925 extern __u16 ext2fs_bg_flags(ext2_filsys fs, dgrp_t group);
926 extern void ext2fs_bg_flags_zap(ext2_filsys fs, dgrp_t group);
927 extern int ext2fs_bg_flags_test(ext2_filsys fs, dgrp_t group, __u16 bg_flag);
928 extern void ext2fs_bg_flags_set(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
929 extern void ext2fs_bg_flags_clear(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
930 extern __u16 ext2fs_bg_checksum(ext2_filsys fs, dgrp_t group);
931 extern void ext2fs_bg_checksum_set(ext2_filsys fs, dgrp_t group, __u16 checksum);
932 extern blk64_t ext2fs_file_acl_block(ext2_filsys fs,
933 const struct ext2_inode *inode);
934 extern void ext2fs_file_acl_block_set(ext2_filsys fs,
935 struct ext2_inode *inode, blk64_t blk);
936 extern errcode_t ext2fs_inode_size_set(ext2_filsys fs, struct ext2_inode *inode,
940 extern errcode_t ext2fs_block_iterate(ext2_filsys fs,
944 int (*func)(ext2_filsys fs,
949 errcode_t ext2fs_block_iterate2(ext2_filsys fs,
953 int (*func)(ext2_filsys fs,
955 e2_blkcnt_t blockcnt,
960 errcode_t ext2fs_block_iterate3(ext2_filsys fs,
964 int (*func)(ext2_filsys fs,
966 e2_blkcnt_t blockcnt,
973 extern errcode_t ext2fs_bmap(ext2_filsys fs, ext2_ino_t ino,
974 struct ext2_inode *inode,
975 char *block_buf, int bmap_flags,
976 blk_t block, blk_t *phys_blk);
977 extern errcode_t ext2fs_bmap2(ext2_filsys fs, ext2_ino_t ino,
978 struct ext2_inode *inode,
979 char *block_buf, int bmap_flags, blk64_t block,
980 int *ret_flags, blk64_t *phys_blk);
981 errcode_t ext2fs_map_cluster_block(ext2_filsys fs, ext2_ino_t ino,
982 struct ext2_inode *inode, blk64_t lblk,
987 extern errcode_t ext2fs_move_blocks(ext2_filsys fs,
988 ext2fs_block_bitmap reserve,
989 ext2fs_block_bitmap alloc_map,
994 extern errcode_t ext2fs_check_desc(ext2_filsys fs);
997 extern errcode_t ext2fs_close(ext2_filsys fs);
998 extern errcode_t ext2fs_close2(ext2_filsys fs, int flags);
999 extern errcode_t ext2fs_close_free(ext2_filsys *fs);
1000 extern errcode_t ext2fs_flush(ext2_filsys fs);
1001 extern errcode_t ext2fs_flush2(ext2_filsys fs, int flags);
1002 extern int ext2fs_bg_has_super(ext2_filsys fs, dgrp_t group_block);
1003 extern errcode_t ext2fs_super_and_bgd_loc2(ext2_filsys fs,
1005 blk64_t *ret_super_blk,
1006 blk64_t *ret_old_desc_blk,
1007 blk64_t *ret_new_desc_blk,
1008 blk_t *ret_used_blks);
1009 extern int ext2fs_super_and_bgd_loc(ext2_filsys fs,
1011 blk_t *ret_super_blk,
1012 blk_t *ret_old_desc_blk,
1013 blk_t *ret_new_desc_blk,
1015 extern void ext2fs_update_dynamic_rev(ext2_filsys fs);
1018 extern __u32 ext2fs_crc32_be(__u32 crc, unsigned char const *p, size_t len);
1019 extern __u32 ext2fs_crc32c_le(__u32 crc, unsigned char const *p, size_t len);
1022 extern void ext2fs_init_csum_seed(ext2_filsys fs);
1023 extern errcode_t ext2fs_mmp_csum_set(ext2_filsys fs, struct mmp_struct *mmp);
1024 extern int ext2fs_mmp_csum_verify(ext2_filsys, struct mmp_struct *mmp);
1025 extern int ext2fs_verify_csum_type(ext2_filsys fs, struct ext2_super_block *sb);
1026 extern errcode_t ext2fs_superblock_csum_set(ext2_filsys fs,
1027 struct ext2_super_block *sb);
1028 extern int ext2fs_superblock_csum_verify(ext2_filsys fs,
1029 struct ext2_super_block *sb);
1030 extern errcode_t ext2fs_ext_attr_block_csum_set(ext2_filsys fs,
1031 ext2_ino_t inum, blk64_t block,
1032 struct ext2_ext_attr_header *hdr);
1033 extern int ext2fs_ext_attr_block_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1035 struct ext2_ext_attr_header *hdr);
1036 #define EXT2_DIRENT_TAIL(block, blocksize) \
1037 ((struct ext2_dir_entry_tail *)(((char *)(block)) + \
1038 (blocksize) - sizeof(struct ext2_dir_entry_tail)))
1040 extern void ext2fs_initialize_dirent_tail(ext2_filsys fs,
1041 struct ext2_dir_entry_tail *t);
1042 extern int ext2fs_dirent_has_tail(ext2_filsys fs,
1043 struct ext2_dir_entry *dirent);
1044 extern int ext2fs_dirent_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1045 struct ext2_dir_entry *dirent);
1046 extern int ext2fs_dir_block_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1047 struct ext2_dir_entry *dirent);
1048 extern errcode_t ext2fs_dir_block_csum_set(ext2_filsys fs, ext2_ino_t inum,
1049 struct ext2_dir_entry *dirent);
1050 extern errcode_t ext2fs_get_dx_countlimit(ext2_filsys fs,
1051 struct ext2_dir_entry *dirent,
1052 struct ext2_dx_countlimit **cc,
1054 extern errcode_t ext2fs_extent_block_csum_set(ext2_filsys fs,
1056 struct ext3_extent_header *eh);
1057 extern int ext2fs_extent_block_csum_verify(ext2_filsys fs,
1059 struct ext3_extent_header *eh);
1060 extern errcode_t ext2fs_block_bitmap_csum_set(ext2_filsys fs, dgrp_t group,
1061 char *bitmap, int size);
1062 extern int ext2fs_block_bitmap_csum_verify(ext2_filsys fs, dgrp_t group,
1063 char *bitmap, int size);
1064 extern errcode_t ext2fs_inode_bitmap_csum_set(ext2_filsys fs, dgrp_t group,
1065 char *bitmap, int size);
1066 extern int ext2fs_inode_bitmap_csum_verify(ext2_filsys fs, dgrp_t group,
1067 char *bitmap, int size);
1068 extern errcode_t ext2fs_inode_csum_set(ext2_filsys fs, ext2_ino_t inum,
1069 struct ext2_inode_large *inode);
1070 extern int ext2fs_inode_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1071 struct ext2_inode_large *inode);
1072 extern void ext2fs_group_desc_csum_set(ext2_filsys fs, dgrp_t group);
1073 extern int ext2fs_group_desc_csum_verify(ext2_filsys fs, dgrp_t group);
1074 extern errcode_t ext2fs_set_gdt_csum(ext2_filsys fs);
1075 extern __u16 ext2fs_group_desc_csum(ext2_filsys fs, dgrp_t group);
1078 extern errcode_t ext2fs_init_dblist(ext2_filsys fs, ext2_dblist *ret_dblist);
1079 extern errcode_t ext2fs_add_dir_block(ext2_dblist dblist, ext2_ino_t ino,
1080 blk_t blk, int blockcnt);
1081 extern errcode_t ext2fs_add_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
1082 blk64_t blk, e2_blkcnt_t blockcnt);
1083 extern void ext2fs_dblist_sort(ext2_dblist dblist,
1084 EXT2_QSORT_TYPE (*sortfunc)(const void *,
1086 extern void ext2fs_dblist_sort2(ext2_dblist dblist,
1087 EXT2_QSORT_TYPE (*sortfunc)(const void *,
1089 extern errcode_t ext2fs_dblist_iterate(ext2_dblist dblist,
1090 int (*func)(ext2_filsys fs, struct ext2_db_entry *db_info,
1093 extern errcode_t ext2fs_dblist_iterate2(ext2_dblist dblist,
1094 int (*func)(ext2_filsys fs, struct ext2_db_entry2 *db_info,
1097 extern errcode_t ext2fs_dblist_iterate3(ext2_dblist dblist,
1098 int (*func)(ext2_filsys fs, struct ext2_db_entry2 *db_info,
1100 unsigned long long start,
1101 unsigned long long count,
1103 extern errcode_t ext2fs_set_dir_block(ext2_dblist dblist, ext2_ino_t ino,
1104 blk_t blk, int blockcnt);
1105 extern errcode_t ext2fs_set_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
1106 blk64_t blk, e2_blkcnt_t blockcnt);
1107 extern errcode_t ext2fs_copy_dblist(ext2_dblist src,
1109 extern int ext2fs_dblist_count(ext2_dblist dblist);
1110 extern blk64_t ext2fs_dblist_count2(ext2_dblist dblist);
1111 extern errcode_t ext2fs_dblist_get_last(ext2_dblist dblist,
1112 struct ext2_db_entry **entry);
1113 extern errcode_t ext2fs_dblist_get_last2(ext2_dblist dblist,
1114 struct ext2_db_entry2 **entry);
1115 extern errcode_t ext2fs_dblist_drop_last(ext2_dblist dblist);
1119 ext2fs_dblist_dir_iterate(ext2_dblist dblist,
1122 int (*func)(ext2_ino_t dir,
1124 struct ext2_dir_entry *dirent,
1132 /* digest_encode.c */
1133 #define EXT2FS_DIGEST_SIZE EXT2FS_SHA256_LENGTH
1134 extern int ext2fs_digest_encode(const char *src, int len, char *dst);
1135 extern int ext2fs_digest_decode(const char *src, int len, char *dst);
1139 extern errcode_t ext2fs_read_dir_block(ext2_filsys fs, blk_t block,
1141 extern errcode_t ext2fs_read_dir_block2(ext2_filsys fs, blk_t block,
1142 void *buf, int flags);
1143 extern errcode_t ext2fs_read_dir_block3(ext2_filsys fs, blk64_t block,
1144 void *buf, int flags);
1145 extern errcode_t ext2fs_read_dir_block4(ext2_filsys fs, blk64_t block,
1146 void *buf, int flags, ext2_ino_t ino);
1147 extern errcode_t ext2fs_write_dir_block(ext2_filsys fs, blk_t block,
1149 extern errcode_t ext2fs_write_dir_block2(ext2_filsys fs, blk_t block,
1150 void *buf, int flags);
1151 extern errcode_t ext2fs_write_dir_block3(ext2_filsys fs, blk64_t block,
1152 void *buf, int flags);
1153 extern errcode_t ext2fs_write_dir_block4(ext2_filsys fs, blk64_t block,
1154 void *buf, int flags, ext2_ino_t ino);
1157 extern errcode_t ext2fs_dirhash(int version, const char *name, int len,
1159 ext2_dirhash_t *ret_hash,
1160 ext2_dirhash_t *ret_minor_hash);
1164 extern errcode_t ext2fs_get_rec_len(ext2_filsys fs,
1165 struct ext2_dir_entry *dirent,
1166 unsigned int *rec_len);
1167 extern errcode_t ext2fs_set_rec_len(ext2_filsys fs,
1169 struct ext2_dir_entry *dirent);
1170 extern errcode_t ext2fs_dir_iterate(ext2_filsys fs,
1174 int (*func)(struct ext2_dir_entry *dirent,
1180 extern errcode_t ext2fs_dir_iterate2(ext2_filsys fs,
1184 int (*func)(ext2_ino_t dir,
1186 struct ext2_dir_entry *dirent,
1194 extern errcode_t ext2fs_dup_handle(ext2_filsys src, ext2_filsys *dest);
1197 extern errcode_t ext2fs_expand_dir(ext2_filsys fs, ext2_ino_t dir);
1200 extern __u32 ext2fs_ext_attr_hash_entry(struct ext2_ext_attr_entry *entry,
1202 extern errcode_t ext2fs_ext_attr_hash_entry2(ext2_filsys fs,
1203 struct ext2_ext_attr_entry *entry,
1204 void *data, __u32 *hash);
1205 extern errcode_t ext2fs_read_ext_attr(ext2_filsys fs, blk_t block, void *buf);
1206 extern errcode_t ext2fs_read_ext_attr2(ext2_filsys fs, blk64_t block,
1208 extern errcode_t ext2fs_read_ext_attr3(ext2_filsys fs, blk64_t block,
1209 void *buf, ext2_ino_t inum);
1210 extern errcode_t ext2fs_write_ext_attr(ext2_filsys fs, blk_t block,
1212 extern errcode_t ext2fs_write_ext_attr2(ext2_filsys fs, blk64_t block,
1214 extern errcode_t ext2fs_write_ext_attr3(ext2_filsys fs, blk64_t block,
1215 void *buf, ext2_ino_t inum);
1216 extern errcode_t ext2fs_adjust_ea_refcount(ext2_filsys fs, blk_t blk,
1218 int adjust, __u32 *newcount);
1219 extern errcode_t ext2fs_adjust_ea_refcount2(ext2_filsys fs, blk64_t blk,
1221 int adjust, __u32 *newcount);
1222 extern errcode_t ext2fs_adjust_ea_refcount3(ext2_filsys fs, blk64_t blk,
1224 int adjust, __u32 *newcount,
1226 errcode_t ext2fs_xattrs_write(struct ext2_xattr_handle *handle);
1227 errcode_t ext2fs_xattrs_read(struct ext2_xattr_handle *handle);
1228 errcode_t ext2fs_xattrs_iterate(struct ext2_xattr_handle *h,
1229 int (*func)(char *name, char *value,
1230 size_t value_len, void *data),
1232 errcode_t ext2fs_xattr_get(struct ext2_xattr_handle *h, const char *key,
1233 void **value, size_t *value_len);
1234 errcode_t ext2fs_xattr_set(struct ext2_xattr_handle *handle,
1238 errcode_t ext2fs_xattr_remove(struct ext2_xattr_handle *handle,
1240 errcode_t ext2fs_xattrs_open(ext2_filsys fs, ext2_ino_t ino,
1241 struct ext2_xattr_handle **handle);
1242 errcode_t ext2fs_xattrs_close(struct ext2_xattr_handle **handle);
1243 errcode_t ext2fs_free_ext_attr(ext2_filsys fs, ext2_ino_t ino,
1244 struct ext2_inode_large *inode);
1245 errcode_t ext2fs_xattrs_count(struct ext2_xattr_handle *handle, size_t *count);
1246 errcode_t ext2fs_xattr_inode_max_size(ext2_filsys fs, ext2_ino_t ino,
1248 #define XATTR_HANDLE_FLAG_RAW 0x0001
1249 errcode_t ext2fs_xattrs_flags(struct ext2_xattr_handle *handle,
1250 unsigned int *new_flags, unsigned int *old_flags);
1251 extern void ext2fs_ext_attr_block_rehash(struct ext2_ext_attr_header *header,
1252 struct ext2_ext_attr_entry *end);
1253 extern __u32 ext2fs_get_ea_inode_hash(struct ext2_inode *inode);
1254 extern void ext2fs_set_ea_inode_hash(struct ext2_inode *inode, __u32 hash);
1255 extern __u64 ext2fs_get_ea_inode_ref(struct ext2_inode *inode);
1256 extern void ext2fs_set_ea_inode_ref(struct ext2_inode *inode, __u64 ref_count);
1259 extern errcode_t ext2fs_extent_header_verify(void *ptr, int size);
1260 extern errcode_t ext2fs_extent_open(ext2_filsys fs, ext2_ino_t ino,
1261 ext2_extent_handle_t *handle);
1262 extern errcode_t ext2fs_extent_open2(ext2_filsys fs, ext2_ino_t ino,
1263 struct ext2_inode *inode,
1264 ext2_extent_handle_t *ret_handle);
1265 extern void ext2fs_extent_free(ext2_extent_handle_t handle);
1266 extern errcode_t ext2fs_extent_get(ext2_extent_handle_t handle,
1267 int flags, struct ext2fs_extent *extent);
1268 extern errcode_t ext2fs_extent_node_split(ext2_extent_handle_t handle);
1269 extern errcode_t ext2fs_extent_replace(ext2_extent_handle_t handle, int flags,
1270 struct ext2fs_extent *extent);
1271 extern errcode_t ext2fs_extent_insert(ext2_extent_handle_t handle, int flags,
1272 struct ext2fs_extent *extent);
1273 extern errcode_t ext2fs_extent_set_bmap(ext2_extent_handle_t handle,
1274 blk64_t logical, blk64_t physical,
1276 extern errcode_t ext2fs_extent_delete(ext2_extent_handle_t handle, int flags);
1277 extern errcode_t ext2fs_extent_get_info(ext2_extent_handle_t handle,
1278 struct ext2_extent_info *info);
1279 extern errcode_t ext2fs_extent_goto(ext2_extent_handle_t handle,
1281 extern errcode_t ext2fs_extent_goto2(ext2_extent_handle_t handle,
1282 int leaf_level, blk64_t blk);
1283 extern errcode_t ext2fs_extent_fix_parents(ext2_extent_handle_t handle);
1284 size_t ext2fs_max_extent_depth(ext2_extent_handle_t handle);
1287 #define EXT2_FALLOCATE_ZERO_BLOCKS (0x1)
1288 #define EXT2_FALLOCATE_FORCE_INIT (0x2)
1289 #define EXT2_FALLOCATE_FORCE_UNINIT (0x4)
1290 #define EXT2_FALLOCATE_INIT_BEYOND_EOF (0x8)
1291 #define EXT2_FALLOCATE_ALL_FLAGS (0xF)
1292 errcode_t ext2fs_fallocate(ext2_filsys fs, int flags, ext2_ino_t ino,
1293 struct ext2_inode *inode, blk64_t goal,
1294 blk64_t start, blk64_t len);
1297 extern errcode_t ext2fs_file_open2(ext2_filsys fs, ext2_ino_t ino,
1298 struct ext2_inode *inode,
1299 int flags, ext2_file_t *ret);
1300 extern errcode_t ext2fs_file_open(ext2_filsys fs, ext2_ino_t ino,
1301 int flags, ext2_file_t *ret);
1302 extern ext2_filsys ext2fs_file_get_fs(ext2_file_t file);
1303 struct ext2_inode *ext2fs_file_get_inode(ext2_file_t file);
1304 extern ext2_ino_t ext2fs_file_get_inode_num(ext2_file_t file);
1305 extern errcode_t ext2fs_file_close(ext2_file_t file);
1306 extern errcode_t ext2fs_file_flush(ext2_file_t file);
1307 extern errcode_t ext2fs_file_read(ext2_file_t file, void *buf,
1308 unsigned int wanted, unsigned int *got);
1309 extern errcode_t ext2fs_file_write(ext2_file_t file, const void *buf,
1310 unsigned int nbytes, unsigned int *written);
1311 extern errcode_t ext2fs_file_llseek(ext2_file_t file, __u64 offset,
1312 int whence, __u64 *ret_pos);
1313 extern errcode_t ext2fs_file_lseek(ext2_file_t file, ext2_off_t offset,
1314 int whence, ext2_off_t *ret_pos);
1315 errcode_t ext2fs_file_get_lsize(ext2_file_t file, __u64 *ret_size);
1316 extern ext2_off_t ext2fs_file_get_size(ext2_file_t file);
1317 extern errcode_t ext2fs_file_set_size(ext2_file_t file, ext2_off_t size);
1318 extern errcode_t ext2fs_file_set_size2(ext2_file_t file, ext2_off64_t size);
1321 extern char *ext2fs_find_block_device(dev_t device);
1324 extern errcode_t ext2fs_sync_device(int fd, int flushb);
1327 extern void ext2fs_free(ext2_filsys fs);
1328 extern void ext2fs_free_dblist(ext2_dblist dblist);
1329 extern void ext2fs_badblocks_list_free(ext2_badblocks_list bb);
1330 extern void ext2fs_u32_list_free(ext2_u32_list bb);
1333 extern void ext2fs_free_generic_bitmap(ext2fs_inode_bitmap bitmap);
1334 extern errcode_t ext2fs_make_generic_bitmap(errcode_t magic, ext2_filsys fs,
1335 __u32 start, __u32 end,
1337 const char *descr, char *init_map,
1338 ext2fs_generic_bitmap *ret);
1339 extern errcode_t ext2fs_allocate_generic_bitmap(__u32 start,
1343 ext2fs_generic_bitmap *ret);
1344 extern errcode_t ext2fs_copy_generic_bitmap(ext2fs_generic_bitmap src,
1345 ext2fs_generic_bitmap *dest);
1346 extern void ext2fs_clear_generic_bitmap(ext2fs_generic_bitmap bitmap);
1347 extern errcode_t ext2fs_fudge_generic_bitmap_end(ext2fs_inode_bitmap bitmap,
1352 extern void ext2fs_set_generic_bitmap_padding(ext2fs_generic_bitmap map);
1353 extern errcode_t ext2fs_resize_generic_bitmap(errcode_t magic,
1356 ext2fs_generic_bitmap bmap);
1357 extern errcode_t ext2fs_compare_generic_bitmap(errcode_t magic, errcode_t neq,
1358 ext2fs_generic_bitmap bm1,
1359 ext2fs_generic_bitmap bm2);
1360 extern errcode_t ext2fs_get_generic_bitmap_range(ext2fs_generic_bitmap bmap,
1362 __u32 start, __u32 num,
1364 extern errcode_t ext2fs_set_generic_bitmap_range(ext2fs_generic_bitmap bmap,
1366 __u32 start, __u32 num,
1368 extern errcode_t ext2fs_find_first_zero_generic_bitmap(ext2fs_generic_bitmap bitmap,
1369 __u32 start, __u32 end,
1371 extern errcode_t ext2fs_find_first_set_generic_bitmap(ext2fs_generic_bitmap bitmap,
1372 __u32 start, __u32 end,
1375 /* gen_bitmap64.c */
1376 void ext2fs_free_generic_bmap(ext2fs_generic_bitmap bmap);
1377 errcode_t ext2fs_alloc_generic_bmap(ext2_filsys fs, errcode_t magic,
1378 int type, __u64 start, __u64 end,
1381 ext2fs_generic_bitmap *ret);
1382 errcode_t ext2fs_copy_generic_bmap(ext2fs_generic_bitmap src,
1383 ext2fs_generic_bitmap *dest);
1384 void ext2fs_clear_generic_bmap(ext2fs_generic_bitmap bitmap);
1385 errcode_t ext2fs_fudge_generic_bmap_end(ext2fs_generic_bitmap bitmap,
1387 __u64 end, __u64 *oend);
1388 void ext2fs_set_generic_bmap_padding(ext2fs_generic_bitmap bmap);
1389 errcode_t ext2fs_resize_generic_bmap(ext2fs_generic_bitmap bmap,
1391 __u64 new_real_end);
1392 errcode_t ext2fs_compare_generic_bmap(errcode_t neq,
1393 ext2fs_generic_bitmap bm1,
1394 ext2fs_generic_bitmap bm2);
1395 errcode_t ext2fs_get_generic_bmap_range(ext2fs_generic_bitmap bmap,
1396 __u64 start, unsigned int num,
1398 errcode_t ext2fs_set_generic_bmap_range(ext2fs_generic_bitmap bmap,
1399 __u64 start, unsigned int num,
1401 errcode_t ext2fs_convert_subcluster_bitmap(ext2_filsys fs,
1402 ext2fs_block_bitmap *bitmap);
1404 /* get_num_dirs.c */
1405 extern errcode_t ext2fs_get_num_dirs(ext2_filsys fs, ext2_ino_t *ret_num_dirs);
1408 extern errcode_t ext2fs_get_device_size(const char *file, int blocksize,
1410 extern errcode_t ext2fs_get_device_size2(const char *file, int blocksize,
1411 blk64_t *retblocks);
1414 extern int ext2fs_get_dio_alignment(int fd);
1415 errcode_t ext2fs_get_device_sectsize(const char *file, int *sectsize);
1416 errcode_t ext2fs_get_device_phys_sectsize(const char *file, int *sectsize);
1419 errcode_t ext2fs_iblk_add_blocks(ext2_filsys fs, struct ext2_inode *inode,
1420 blk64_t num_blocks);
1421 errcode_t ext2fs_iblk_sub_blocks(ext2_filsys fs, struct ext2_inode *inode,
1422 blk64_t num_blocks);
1423 errcode_t ext2fs_iblk_set(ext2_filsys fs, struct ext2_inode *inode, blk64_t b);
1426 extern errcode_t ext2fs_image_inode_write(ext2_filsys fs, int fd, int flags);
1427 extern errcode_t ext2fs_image_inode_read(ext2_filsys fs, int fd, int flags);
1428 extern errcode_t ext2fs_image_super_write(ext2_filsys fs, int fd, int flags);
1429 extern errcode_t ext2fs_image_super_read(ext2_filsys fs, int fd, int flags);
1430 extern errcode_t ext2fs_image_bitmap_write(ext2_filsys fs, int fd, int flags);
1431 extern errcode_t ext2fs_image_bitmap_read(ext2_filsys fs, int fd, int flags);
1434 errcode_t ext2fs_read_ind_block(ext2_filsys fs, blk_t blk, void *buf);
1435 errcode_t ext2fs_write_ind_block(ext2_filsys fs, blk_t blk, void *buf);
1438 extern errcode_t ext2fs_initialize(const char *name, int flags,
1439 struct ext2_super_block *param,
1440 io_manager manager, ext2_filsys *ret_fs);
1443 extern void ext2fs_free_icount(ext2_icount_t icount);
1444 extern errcode_t ext2fs_create_icount_tdb(ext2_filsys fs, char *tdb_dir,
1445 int flags, ext2_icount_t *ret);
1446 extern errcode_t ext2fs_create_icount2(ext2_filsys fs, int flags,
1448 ext2_icount_t hint, ext2_icount_t *ret);
1449 extern errcode_t ext2fs_create_icount(ext2_filsys fs, int flags,
1451 ext2_icount_t *ret);
1452 extern errcode_t ext2fs_icount_fetch(ext2_icount_t icount, ext2_ino_t ino,
1454 extern errcode_t ext2fs_icount_increment(ext2_icount_t icount, ext2_ino_t ino,
1456 extern errcode_t ext2fs_icount_decrement(ext2_icount_t icount, ext2_ino_t ino,
1458 extern errcode_t ext2fs_icount_store(ext2_icount_t icount, ext2_ino_t ino,
1460 extern ext2_ino_t ext2fs_get_icount_size(ext2_icount_t icount);
1461 errcode_t ext2fs_icount_validate(ext2_icount_t icount, FILE *);
1465 extern errcode_t ext2fs_get_memalign(unsigned long size,
1466 unsigned long align, void *ptr);
1469 extern errcode_t ext2fs_inline_data_init(ext2_filsys fs, ext2_ino_t ino);
1470 extern errcode_t ext2fs_inline_data_size(ext2_filsys fs, ext2_ino_t ino,
1472 extern errcode_t ext2fs_inline_data_get(ext2_filsys fs, ext2_ino_t ino,
1473 struct ext2_inode *inode,
1474 void *buf, size_t *size);
1475 extern errcode_t ext2fs_inline_data_set(ext2_filsys fs, ext2_ino_t ino,
1476 struct ext2_inode *inode,
1477 void *buf, size_t size);
1480 extern errcode_t ext2fs_create_inode_cache(ext2_filsys fs,
1481 unsigned int cache_size);
1482 extern void ext2fs_free_inode_cache(struct ext2_inode_cache *icache);
1483 extern errcode_t ext2fs_flush_icache(ext2_filsys fs);
1484 extern errcode_t ext2fs_get_next_inode_full(ext2_inode_scan scan,
1486 struct ext2_inode *inode,
1488 #define EXT2_INODE_SCAN_DEFAULT_BUFFER_BLOCKS 8
1489 extern errcode_t ext2fs_open_inode_scan(ext2_filsys fs, int buffer_blocks,
1490 ext2_inode_scan *ret_scan);
1491 extern void ext2fs_close_inode_scan(ext2_inode_scan scan);
1492 extern errcode_t ext2fs_get_next_inode(ext2_inode_scan scan, ext2_ino_t *ino,
1493 struct ext2_inode *inode);
1494 extern errcode_t ext2fs_inode_scan_goto_blockgroup(ext2_inode_scan scan,
1496 extern void ext2fs_set_inode_callback
1497 (ext2_inode_scan scan,
1498 errcode_t (*done_group)(ext2_filsys fs,
1499 ext2_inode_scan scan,
1502 void *done_group_data);
1503 extern int ext2fs_inode_scan_flags(ext2_inode_scan scan, int set_flags,
1505 extern errcode_t ext2fs_read_inode_full(ext2_filsys fs, ext2_ino_t ino,
1506 struct ext2_inode * inode,
1508 extern errcode_t ext2fs_read_inode (ext2_filsys fs, ext2_ino_t ino,
1509 struct ext2_inode * inode);
1510 extern errcode_t ext2fs_write_inode_full(ext2_filsys fs, ext2_ino_t ino,
1511 struct ext2_inode * inode,
1513 extern errcode_t ext2fs_write_inode(ext2_filsys fs, ext2_ino_t ino,
1514 struct ext2_inode * inode);
1515 extern errcode_t ext2fs_write_new_inode(ext2_filsys fs, ext2_ino_t ino,
1516 struct ext2_inode * inode);
1517 extern errcode_t ext2fs_get_blocks(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
1518 extern errcode_t ext2fs_check_directory(ext2_filsys fs, ext2_ino_t ino);
1521 extern io_manager inode_io_manager;
1522 extern errcode_t ext2fs_inode_io_intern(ext2_filsys fs, ext2_ino_t ino,
1524 extern errcode_t ext2fs_inode_io_intern2(ext2_filsys fs, ext2_ino_t ino,
1525 struct ext2_inode *inode,
1529 extern errcode_t ext2fs_check_if_mounted(const char *file, int *mount_flags);
1530 extern errcode_t ext2fs_check_mount_point(const char *device, int *mount_flags,
1531 char *mtpt, int mtlen);
1535 * NOTE: This function removes from an inode the blocks "start", "end", and
1536 * every block in between.
1538 extern errcode_t ext2fs_punch(ext2_filsys fs, ext2_ino_t ino,
1539 struct ext2_inode *inode,
1540 char *block_buf, blk64_t start,
1544 extern errcode_t ext2fs_lookup(ext2_filsys fs, ext2_ino_t dir, const char *name,
1545 int namelen, char *buf, ext2_ino_t *inode);
1546 extern errcode_t ext2fs_namei(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1547 const char *name, ext2_ino_t *inode);
1548 errcode_t ext2fs_namei_follow(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1549 const char *name, ext2_ino_t *inode);
1550 extern errcode_t ext2fs_follow_link(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1551 ext2_ino_t inode, ext2_ino_t *res_inode);
1554 int ext2fs_native_flag(void);
1557 extern errcode_t ext2fs_new_dir_block(ext2_filsys fs, ext2_ino_t dir_ino,
1558 ext2_ino_t parent_ino, char **block);
1559 extern errcode_t ext2fs_new_dir_inline_data(ext2_filsys fs, ext2_ino_t dir_ino,
1560 ext2_ino_t parent_ino, __u32 *iblock);
1563 extern errcode_t ext2fs_mkdir(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t inum,
1567 extern errcode_t ext2fs_zero_blocks(ext2_filsys fs, blk_t blk, int num,
1568 blk_t *ret_blk, int *ret_count);
1569 extern errcode_t ext2fs_zero_blocks2(ext2_filsys fs, blk64_t blk, int num,
1570 blk64_t *ret_blk, int *ret_count);
1571 extern errcode_t ext2fs_create_journal_superblock(ext2_filsys fs,
1572 __u32 num_blocks, int flags,
1574 extern errcode_t ext2fs_add_journal_device(ext2_filsys fs,
1575 ext2_filsys journal_dev);
1576 extern errcode_t ext2fs_add_journal_inode(ext2_filsys fs, blk_t num_blocks,
1578 extern errcode_t ext2fs_add_journal_inode2(ext2_filsys fs, blk_t num_blocks,
1579 blk64_t goal, int flags);
1580 extern int ext2fs_default_journal_size(__u64 num_blocks);
1581 extern int ext2fs_journal_sb_start(int blocksize);
1584 extern errcode_t ext2fs_open(const char *name, int flags, int superblock,
1585 unsigned int block_size, io_manager manager,
1586 ext2_filsys *ret_fs);
1587 extern errcode_t ext2fs_open2(const char *name, const char *io_options,
1588 int flags, int superblock,
1589 unsigned int block_size, io_manager manager,
1590 ext2_filsys *ret_fs);
1592 * The dgrp_t argument to these two functions is not actually a group number
1593 * but a block number offset within a group table! Convert with the formula
1594 * (group_number / groups_per_block).
1596 extern blk64_t ext2fs_descriptor_block_loc2(ext2_filsys fs,
1597 blk64_t group_block, dgrp_t i);
1598 extern blk_t ext2fs_descriptor_block_loc(ext2_filsys fs, blk_t group_block,
1600 errcode_t ext2fs_get_data_io(ext2_filsys fs, io_channel *old_io);
1601 errcode_t ext2fs_set_data_io(ext2_filsys fs, io_channel new_io);
1602 errcode_t ext2fs_rewrite_to_io(ext2_filsys fs, io_channel new_io);
1604 /* get_pathname.c */
1605 extern errcode_t ext2fs_get_pathname(ext2_filsys fs, ext2_ino_t dir, ext2_ino_t ino,
1609 errcode_t ext2fs_link(ext2_filsys fs, ext2_ino_t dir, const char *name,
1610 ext2_ino_t ino, int flags);
1611 errcode_t ext2fs_unlink(ext2_filsys fs, ext2_ino_t dir, const char *name,
1612 ext2_ino_t ino, int flags);
1615 errcode_t ext2fs_symlink(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t ino,
1616 const char *name, const char *target);
1617 int ext2fs_is_fast_symlink(struct ext2_inode *inode);
1620 errcode_t ext2fs_mmp_read(ext2_filsys fs, blk64_t mmp_blk, void *buf);
1621 errcode_t ext2fs_mmp_write(ext2_filsys fs, blk64_t mmp_blk, void *buf);
1622 errcode_t ext2fs_mmp_clear(ext2_filsys fs);
1623 errcode_t ext2fs_mmp_init(ext2_filsys fs);
1624 errcode_t ext2fs_mmp_start(ext2_filsys fs);
1625 errcode_t ext2fs_mmp_update(ext2_filsys fs);
1626 errcode_t ext2fs_mmp_update2(ext2_filsys fs, int immediately);
1627 errcode_t ext2fs_mmp_stop(ext2_filsys fs);
1628 unsigned ext2fs_mmp_new_seq(void);
1631 extern errcode_t ext2fs_read_bb_inode(ext2_filsys fs,
1632 ext2_badblocks_list *bb_list);
1634 /* read_bb_file.c */
1635 extern errcode_t ext2fs_read_bb_FILE2(ext2_filsys fs, FILE *f,
1636 ext2_badblocks_list *bb_list,
1638 void (*invalid)(ext2_filsys fs,
1642 extern errcode_t ext2fs_read_bb_FILE(ext2_filsys fs, FILE *f,
1643 ext2_badblocks_list *bb_list,
1644 void (*invalid)(ext2_filsys fs,
1648 extern errcode_t ext2fs_create_resize_inode(ext2_filsys fs);
1651 #define EXT2FS_SHA256_LENGTH 32
1653 extern void ext2fs_sha256(const unsigned char *in, unsigned long in_size,
1654 unsigned char out[EXT2FS_SHA256_LENGTH]);
1658 #define EXT2FS_SHA512_LENGTH 64
1659 extern void ext2fs_sha512(const unsigned char *in, unsigned long in_size,
1660 unsigned char out[EXT2FS_SHA512_LENGTH]);
1663 extern errcode_t ext2fs_dirent_swab_in2(ext2_filsys fs, char *buf, size_t size,
1665 extern errcode_t ext2fs_dirent_swab_in(ext2_filsys fs, char *buf, int flags);
1666 extern errcode_t ext2fs_dirent_swab_out2(ext2_filsys fs, char *buf, size_t size,
1668 extern errcode_t ext2fs_dirent_swab_out(ext2_filsys fs, char *buf, int flags);
1669 extern void ext2fs_swap_ext_attr(char *to, char *from, int bufsize,
1671 extern void ext2fs_swap_ext_attr_header(struct ext2_ext_attr_header *to_header,
1672 struct ext2_ext_attr_header *from_hdr);
1673 extern void ext2fs_swap_ext_attr_entry(struct ext2_ext_attr_entry *to_entry,
1674 struct ext2_ext_attr_entry *from_entry);
1675 extern void ext2fs_swap_super(struct ext2_super_block * super);
1676 extern void ext2fs_swap_group_desc(struct ext2_group_desc *gdp);
1677 extern void ext2fs_swap_group_desc2(ext2_filsys, struct ext2_group_desc *gdp);
1678 extern void ext2fs_swap_inode_full(ext2_filsys fs, struct ext2_inode_large *t,
1679 struct ext2_inode_large *f, int hostorder,
1681 extern void ext2fs_swap_inode(ext2_filsys fs,struct ext2_inode *t,
1682 struct ext2_inode *f, int hostorder);
1683 extern void ext2fs_swap_mmp(struct mmp_struct *mmp);
1686 extern int ext2fs_open_file(const char *pathname, int flags, mode_t mode);
1687 extern int ext2fs_stat(const char *path, ext2fs_struct_stat *buf);
1688 extern int ext2fs_fstat(int fd, ext2fs_struct_stat *buf);
1691 extern int ext2fs_inode_has_valid_blocks(struct ext2_inode *inode);
1692 extern int ext2fs_inode_has_valid_blocks2(ext2_filsys fs,
1693 struct ext2_inode *inode);
1696 extern int ext2fs_parse_version_string(const char *ver_string);
1697 extern int ext2fs_get_library_version(const char **ver_string,
1698 const char **date_string);
1700 /* write_bb_file.c */
1701 extern errcode_t ext2fs_write_bb_FILE(ext2_badblocks_list bb_list,
1706 /* inline functions */
1707 #ifdef NO_INLINE_FUNCS
1708 extern errcode_t ext2fs_get_mem(unsigned long size, void *ptr);
1709 extern errcode_t ext2fs_get_memzero(unsigned long size, void *ptr);
1710 extern errcode_t ext2fs_get_array(unsigned long count,
1711 unsigned long size, void *ptr);
1712 extern errcode_t ext2fs_get_arrayzero(unsigned long count,
1713 unsigned long size, void *ptr);
1714 extern errcode_t ext2fs_free_mem(void *ptr);
1715 extern errcode_t ext2fs_resize_mem(unsigned long old_size,
1716 unsigned long size, void *ptr);
1717 extern void ext2fs_mark_super_dirty(ext2_filsys fs);
1718 extern void ext2fs_mark_changed(ext2_filsys fs);
1719 extern int ext2fs_test_changed(ext2_filsys fs);
1720 extern void ext2fs_mark_valid(ext2_filsys fs);
1721 extern void ext2fs_unmark_valid(ext2_filsys fs);
1722 extern int ext2fs_test_valid(ext2_filsys fs);
1723 extern void ext2fs_mark_ib_dirty(ext2_filsys fs);
1724 extern void ext2fs_mark_bb_dirty(ext2_filsys fs);
1725 extern int ext2fs_test_ib_dirty(ext2_filsys fs);
1726 extern int ext2fs_test_bb_dirty(ext2_filsys fs);
1727 extern dgrp_t ext2fs_group_of_blk(ext2_filsys fs, blk_t blk);
1728 extern dgrp_t ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino);
1729 extern blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group);
1730 extern blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group);
1731 extern blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
1732 struct ext2_inode *inode);
1733 extern unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b);
1734 extern __u64 ext2fs_div64_ceil(__u64 a, __u64 b);
1735 extern int ext2fs_dirent_name_len(const struct ext2_dir_entry *entry);
1736 extern void ext2fs_dirent_set_name_len(struct ext2_dir_entry *entry, int len);
1737 extern int ext2fs_dirent_file_type(const struct ext2_dir_entry *entry);
1738 extern void ext2fs_dirent_set_file_type(struct ext2_dir_entry *entry, int type);
1739 extern struct ext2_inode *ext2fs_inode(struct ext2_inode_large * large_inode);
1740 extern const struct ext2_inode *ext2fs_const_inode(const struct ext2_inode_large * large_inode);
1745 * The actual inlined functions definitions themselves...
1747 * If NO_INLINE_FUNCS is defined, then we won't try to do inline
1750 #if (defined(INCLUDE_INLINE_FUNCS) || !defined(NO_INLINE_FUNCS))
1751 #ifdef INCLUDE_INLINE_FUNCS
1752 #define _INLINE_ extern
1754 #if (__STDC_VERSION__ >= 199901L)
1755 #define _INLINE_ inline
1758 #define _INLINE_ extern __inline__
1759 #else /* For Watcom C */
1760 #define _INLINE_ extern inline
1761 #endif /* __GNUC__ */
1762 #endif /* __STDC_VERSION__ >= 199901L */
1765 #ifndef EXT2_CUSTOM_MEMORY_ROUTINES
1768 * Allocate memory. The 'ptr' arg must point to a pointer.
1770 _INLINE_ errcode_t ext2fs_get_mem(unsigned long size, void *ptr)
1776 return EXT2_ET_NO_MEMORY;
1777 memcpy(ptr, &pp, sizeof (pp));
1781 _INLINE_ errcode_t ext2fs_get_memzero(unsigned long size, void *ptr)
1787 return EXT2_ET_NO_MEMORY;
1788 memset(pp, 0, size);
1789 memcpy(ptr, &pp, sizeof(pp));
1793 _INLINE_ errcode_t ext2fs_get_array(unsigned long count, unsigned long size, void *ptr)
1795 if (count && (~0UL)/count < size)
1796 return EXT2_ET_NO_MEMORY;
1797 return ext2fs_get_mem(count*size, ptr);
1800 _INLINE_ errcode_t ext2fs_get_arrayzero(unsigned long count,
1801 unsigned long size, void *ptr)
1805 if (count && (~0UL)/count < size)
1806 return EXT2_ET_NO_MEMORY;
1807 pp = calloc(count, size);
1809 return EXT2_ET_NO_MEMORY;
1810 memcpy(ptr, &pp, sizeof(pp));
1815 * Free memory. The 'ptr' arg must point to a pointer.
1817 _INLINE_ errcode_t ext2fs_free_mem(void *ptr)
1821 memcpy(&p, ptr, sizeof(p));
1824 memcpy(ptr, &p, sizeof(p));
1829 * Resize memory. The 'ptr' arg must point to a pointer.
1831 _INLINE_ errcode_t ext2fs_resize_mem(unsigned long EXT2FS_ATTR((unused)) old_size,
1832 unsigned long size, void *ptr)
1836 /* Use "memcpy" for pointer assignments here to avoid problems
1837 * with C99 strict type aliasing rules. */
1838 memcpy(&p, ptr, sizeof(p));
1839 p = realloc(p, size);
1841 return EXT2_ET_NO_MEMORY;
1842 memcpy(ptr, &p, sizeof(p));
1845 #endif /* Custom memory routines */
1848 * Mark a filesystem superblock as dirty
1850 _INLINE_ void ext2fs_mark_super_dirty(ext2_filsys fs)
1852 fs->flags |= EXT2_FLAG_DIRTY | EXT2_FLAG_CHANGED;
1856 * Mark a filesystem as changed
1858 _INLINE_ void ext2fs_mark_changed(ext2_filsys fs)
1860 fs->flags |= EXT2_FLAG_CHANGED;
1864 * Check to see if a filesystem has changed
1866 _INLINE_ int ext2fs_test_changed(ext2_filsys fs)
1868 return (fs->flags & EXT2_FLAG_CHANGED);
1872 * Mark a filesystem as valid
1874 _INLINE_ void ext2fs_mark_valid(ext2_filsys fs)
1876 fs->flags |= EXT2_FLAG_VALID;
1880 * Mark a filesystem as NOT valid
1882 _INLINE_ void ext2fs_unmark_valid(ext2_filsys fs)
1884 fs->flags &= ~EXT2_FLAG_VALID;
1888 * Check to see if a filesystem is valid
1890 _INLINE_ int ext2fs_test_valid(ext2_filsys fs)
1892 return (fs->flags & EXT2_FLAG_VALID);
1896 * Mark the inode bitmap as dirty
1898 _INLINE_ void ext2fs_mark_ib_dirty(ext2_filsys fs)
1900 fs->flags |= EXT2_FLAG_IB_DIRTY | EXT2_FLAG_CHANGED;
1904 * Mark the block bitmap as dirty
1906 _INLINE_ void ext2fs_mark_bb_dirty(ext2_filsys fs)
1908 fs->flags |= EXT2_FLAG_BB_DIRTY | EXT2_FLAG_CHANGED;
1912 * Check to see if a filesystem's inode bitmap is dirty
1914 _INLINE_ int ext2fs_test_ib_dirty(ext2_filsys fs)
1916 return (fs->flags & EXT2_FLAG_IB_DIRTY);
1920 * Check to see if a filesystem's block bitmap is dirty
1922 _INLINE_ int ext2fs_test_bb_dirty(ext2_filsys fs)
1924 return (fs->flags & EXT2_FLAG_BB_DIRTY);
1928 * Return the group # of a block
1930 _INLINE_ dgrp_t ext2fs_group_of_blk(ext2_filsys fs, blk_t blk)
1932 return ext2fs_group_of_blk2(fs, blk);
1935 * Return the group # of an inode number
1937 _INLINE_ dgrp_t ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino)
1939 return (ino - 1) / fs->super->s_inodes_per_group;
1943 * Return the first block (inclusive) in a group
1945 _INLINE_ blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group)
1947 return (blk_t) ext2fs_group_first_block2(fs, group);
1951 * Return the last block (inclusive) in a group
1953 _INLINE_ blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group)
1955 return (blk_t) ext2fs_group_last_block2(fs, group);
1958 _INLINE_ blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
1959 struct ext2_inode *inode)
1961 return (blk_t) ext2fs_inode_data_blocks2(fs, inode);
1964 /* htree levels for ext4 */
1965 #define EXT4_HTREE_LEVEL_COMPAT 2
1966 #define EXT4_HTREE_LEVEL 3
1968 static inline unsigned int ext2_dir_htree_level(ext2_filsys fs)
1970 if (ext2fs_has_feature_largedir(fs->super))
1971 return EXT4_HTREE_LEVEL;
1973 return EXT4_HTREE_LEVEL_COMPAT;
1976 _INLINE_ int ext2fs_htree_intnode_maxrecs(ext2_filsys fs, int blocks)
1978 return blocks * ((fs->blocksize - 8) / sizeof(struct ext2_dx_entry));
1982 * This is an efficient, overflow safe way of calculating ceil((1.0 * a) / b)
1984 _INLINE_ unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b)
1988 return ((a - 1) / b) + 1;
1991 _INLINE_ __u64 ext2fs_div64_ceil(__u64 a, __u64 b)
1995 return ((a - 1) / b) + 1;
1998 _INLINE_ int ext2fs_dirent_name_len(const struct ext2_dir_entry *entry)
2000 return entry->name_len & 0xff;
2003 _INLINE_ void ext2fs_dirent_set_name_len(struct ext2_dir_entry *entry, int len)
2005 entry->name_len = (entry->name_len & 0xff00) | (len & 0xff);
2008 _INLINE_ int ext2fs_dirent_file_type(const struct ext2_dir_entry *entry)
2010 return entry->name_len >> 8;
2013 _INLINE_ void ext2fs_dirent_set_file_type(struct ext2_dir_entry *entry, int type)
2015 entry->name_len = (entry->name_len & 0xff) | (type << 8);
2018 _INLINE_ struct ext2_inode *ext2fs_inode(struct ext2_inode_large * large_inode)
2020 /* It is always safe to convert large inode to a small inode */
2021 return (struct ext2_inode *) large_inode;
2024 _INLINE_ const struct ext2_inode *
2025 ext2fs_const_inode(const struct ext2_inode_large * large_inode)
2027 /* It is always safe to convert large inode to a small inode */
2028 return (const struct ext2_inode *) large_inode;
2038 #endif /* _EXT2FS_EXT2FS_H */