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
42 #define UUID_STR_SIZE 37
45 * The last ext2fs revision level that this version of the library is
48 #define EXT2_LIB_CURRENT_REV EXT2_DYNAMIC_REV
50 #ifdef HAVE_SYS_TYPES_H
51 #include <sys/types.h>
59 #if EXT2_FLAT_INCLUDES
62 #include "ext3_extents.h"
64 #include <ext2fs/ext2_types.h>
65 #include <ext2fs/ext2_fs.h>
66 #include <ext2fs/ext3_extents.h>
67 #endif /* EXT2_FLAT_INCLUDES */
69 typedef __u32 __bitwise ext2_ino_t;
70 typedef __u32 __bitwise blk_t;
71 typedef __u64 __bitwise blk64_t;
72 typedef __u32 __bitwise dgrp_t;
73 typedef __u32 __bitwise ext2_off_t;
74 typedef __u64 __bitwise ext2_off64_t;
75 typedef __s64 __bitwise e2_blkcnt_t;
76 typedef __u32 __bitwise ext2_dirhash_t;
78 #if EXT2_FLAT_INCLUDES
82 #include "ext2_ext_attr.h"
84 #include <et/com_err.h>
85 #include <ext2fs/ext2_io.h>
86 #include <ext2fs/ext2_err.h>
87 #include <ext2fs/ext2_ext_attr.h>
91 * Portability help for Microsoft Visual C++
94 #define EXT2_QSORT_TYPE int __cdecl
96 #define EXT2_QSORT_TYPE int
99 typedef struct struct_ext2_filsys *ext2_filsys;
101 #define EXT2FS_MARK_ERROR 0
102 #define EXT2FS_UNMARK_ERROR 1
103 #define EXT2FS_TEST_ERROR 2
105 typedef struct ext2fs_struct_generic_bitmap *ext2fs_generic_bitmap;
106 typedef struct ext2fs_struct_generic_bitmap *ext2fs_inode_bitmap;
107 typedef struct ext2fs_struct_generic_bitmap *ext2fs_block_bitmap;
109 #define EXT2_FIRST_INODE(s) EXT2_FIRST_INO(s)
113 * Badblocks list definitions
116 typedef struct ext2_struct_u32_list *ext2_badblocks_list;
117 typedef struct ext2_struct_u32_iterate *ext2_badblocks_iterate;
119 typedef struct ext2_struct_u32_list *ext2_u32_list;
120 typedef struct ext2_struct_u32_iterate *ext2_u32_iterate;
123 typedef struct ext2_struct_u32_list *badblocks_list;
124 typedef struct ext2_struct_u32_iterate *badblocks_iterate;
126 #define BADBLOCKS_FLAG_DIRTY 1
129 * ext2_dblist structure and abstractions (see dblist.c)
131 struct ext2_db_entry2 {
134 e2_blkcnt_t blockcnt;
137 /* Ye Olde 32-bit version */
138 struct ext2_db_entry {
144 typedef struct ext2_struct_dblist *ext2_dblist;
146 #define DBLIST_ABORT 1
149 * ext2_fileio definitions
152 #define EXT2_FILE_WRITE 0x0001
153 #define EXT2_FILE_CREATE 0x0002
155 #define EXT2_FILE_MASK 0x00FF
157 #define EXT2_FILE_BUF_DIRTY 0x4000
158 #define EXT2_FILE_BUF_VALID 0x2000
160 typedef struct ext2_file *ext2_file_t;
162 #define EXT2_SEEK_SET 0
163 #define EXT2_SEEK_CUR 1
164 #define EXT2_SEEK_END 2
167 * Flags for the ext2_filsys structure and for ext2fs_open()
169 #define EXT2_FLAG_RW 0x01
170 #define EXT2_FLAG_CHANGED 0x02
171 #define EXT2_FLAG_DIRTY 0x04
172 #define EXT2_FLAG_VALID 0x08
173 #define EXT2_FLAG_IB_DIRTY 0x10
174 #define EXT2_FLAG_BB_DIRTY 0x20
175 #define EXT2_FLAG_SWAP_BYTES 0x40
176 #define EXT2_FLAG_SWAP_BYTES_READ 0x80
177 #define EXT2_FLAG_SWAP_BYTES_WRITE 0x100
178 #define EXT2_FLAG_MASTER_SB_ONLY 0x200
179 #define EXT2_FLAG_FORCE 0x400
180 #define EXT2_FLAG_SUPER_ONLY 0x800
181 #define EXT2_FLAG_JOURNAL_DEV_OK 0x1000
182 #define EXT2_FLAG_IMAGE_FILE 0x2000
183 #define EXT2_FLAG_EXCLUSIVE 0x4000
184 #define EXT2_FLAG_SOFTSUPP_FEATURES 0x8000
185 #define EXT2_FLAG_NOFREE_ON_ERROR 0x10000
186 #define EXT2_FLAG_64BITS 0x20000
187 #define EXT2_FLAG_PRINT_PROGRESS 0x40000
188 #define EXT2_FLAG_DIRECT_IO 0x80000
189 #define EXT2_FLAG_SKIP_MMP 0x100000
190 #define EXT2_FLAG_IGNORE_CSUM_ERRORS 0x200000
193 * Special flag in the ext2 inode i_flag field that means that this is
194 * a new inode. (So that ext2_write_inode() can clear extra fields.)
196 #define EXT2_NEW_INODE_FL 0x80000000
199 * Flags for mkjournal
201 #define EXT2_MKJOURNAL_V1_SUPER 0x0000001 /* create V1 superblock (deprecated) */
202 #define EXT2_MKJOURNAL_LAZYINIT 0x0000002 /* don't zero journal inode before use*/
203 #define EXT2_MKJOURNAL_NO_MNT_CHECK 0x0000004 /* don't check mount status */
205 struct opaque_ext2_group_desc;
207 struct struct_ext2_filsys {
212 struct ext2_super_block * super;
213 unsigned int blocksize;
215 dgrp_t group_desc_count;
216 unsigned long desc_blocks;
217 struct opaque_ext2_group_desc * group_desc;
218 unsigned int inode_blocks_per_group;
219 ext2fs_inode_bitmap inode_map;
220 ext2fs_block_bitmap block_map;
221 /* XXX FIXME-64: not 64-bit safe, but not used? */
222 errcode_t (*get_blocks)(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
223 errcode_t (*check_directory)(ext2_filsys fs, ext2_ino_t ino);
224 errcode_t (*write_bitmaps)(ext2_filsys fs);
225 errcode_t (*read_inode)(ext2_filsys fs, ext2_ino_t ino,
226 struct ext2_inode *inode);
227 errcode_t (*write_inode)(ext2_filsys fs, ext2_ino_t ino,
228 struct ext2_inode *inode);
229 ext2_badblocks_list badblocks;
231 __u32 stride; /* for mke2fs */
232 struct ext2_super_block * orig_super;
233 struct ext2_image_hdr * image_header;
236 int cluster_ratio_bits;
237 __u16 default_bitmap_type;
240 * Reserved for future expansion
245 * Reserved for the use of the calling application.
252 struct ext2_inode_cache *icache;
256 * More callback functions
258 errcode_t (*get_alloc_block)(ext2_filsys fs, blk64_t goal,
260 void (*block_alloc_stats)(ext2_filsys fs, blk64_t blk, int inuse);
263 * Buffers for Multiple mount protection(MMP) block.
270 * Time at which e2fsck last updated the MMP block.
272 long mmp_last_written;
274 /* progress operation functions */
275 struct ext2fs_progress_ops *progress_ops;
277 /* Precomputed FS UUID checksum for seeding other checksums */
280 io_channel journal_io;
284 #if EXT2_FLAT_INCLUDES
285 #include "e2_bitops.h"
287 #include <ext2fs/bitops.h>
291 * 64-bit bitmap backend types
293 #define EXT2FS_BMAP64_BITARRAY 1
294 #define EXT2FS_BMAP64_RBTREE 2
295 #define EXT2FS_BMAP64_AUTODIR 3
298 * Return flags for the block iterator functions
300 #define BLOCK_CHANGED 1
301 #define BLOCK_ABORT 2
302 #define BLOCK_ERROR 4
303 #define BLOCK_INLINE_DATA_CHANGED 8
306 * Block interate flags
308 * BLOCK_FLAG_APPEND, or BLOCK_FLAG_HOLE, indicates that the interator
309 * function should be called on blocks where the block number is zero.
310 * This is used by ext2fs_expand_dir() to be able to add a new block
311 * to an inode. It can also be used for programs that want to be able
312 * to deal with files that contain "holes".
314 * BLOCK_FLAG_DEPTH_TRAVERSE indicates that the iterator function for
315 * the indirect, doubly indirect, etc. blocks should be called after
316 * all of the blocks containined in the indirect blocks are processed.
317 * This is useful if you are going to be deallocating blocks from an
320 * BLOCK_FLAG_DATA_ONLY indicates that the iterator function should be
321 * called for data blocks only.
323 * BLOCK_FLAG_READ_ONLY is a promise by the caller that it will not
324 * modify returned block number.
326 * BLOCK_FLAG_NO_LARGE is for internal use only. It informs
327 * ext2fs_block_iterate2 that large files won't be accepted.
329 #define BLOCK_FLAG_APPEND 1
330 #define BLOCK_FLAG_HOLE 1
331 #define BLOCK_FLAG_DEPTH_TRAVERSE 2
332 #define BLOCK_FLAG_DATA_ONLY 4
333 #define BLOCK_FLAG_READ_ONLY 8
335 #define BLOCK_FLAG_NO_LARGE 0x1000
338 * Magic "block count" return values for the block iterator function.
340 #define BLOCK_COUNT_IND (-1)
341 #define BLOCK_COUNT_DIND (-2)
342 #define BLOCK_COUNT_TIND (-3)
343 #define BLOCK_COUNT_TRANSLATOR (-4)
347 * Flags for ext2fs_move_blocks
349 #define EXT2_BMOVE_GET_DBLIST 0x0001
350 #define EXT2_BMOVE_DEBUG 0x0002
354 * Generic (non-filesystem layout specific) extents structure
357 #define EXT2_EXTENT_FLAGS_LEAF 0x0001
358 #define EXT2_EXTENT_FLAGS_UNINIT 0x0002
359 #define EXT2_EXTENT_FLAGS_SECOND_VISIT 0x0004
361 struct ext2fs_extent {
362 blk64_t e_pblk; /* first physical block */
363 blk64_t e_lblk; /* first logical block extent covers */
364 __u32 e_len; /* number of blocks covered by extent */
365 __u32 e_flags; /* extent flags */
368 typedef struct ext2_extent_handle *ext2_extent_handle_t;
369 typedef struct ext2_extent_path *ext2_extent_path_t;
372 * Flags used by ext2fs_extent_get()
374 #define EXT2_EXTENT_CURRENT 0x0000
375 #define EXT2_EXTENT_MOVE_MASK 0x000F
376 #define EXT2_EXTENT_ROOT 0x0001
377 #define EXT2_EXTENT_LAST_LEAF 0x0002
378 #define EXT2_EXTENT_FIRST_SIB 0x0003
379 #define EXT2_EXTENT_LAST_SIB 0x0004
380 #define EXT2_EXTENT_NEXT_SIB 0x0005
381 #define EXT2_EXTENT_PREV_SIB 0x0006
382 #define EXT2_EXTENT_NEXT_LEAF 0x0007
383 #define EXT2_EXTENT_PREV_LEAF 0x0008
384 #define EXT2_EXTENT_NEXT 0x0009
385 #define EXT2_EXTENT_PREV 0x000A
386 #define EXT2_EXTENT_UP 0x000B
387 #define EXT2_EXTENT_DOWN 0x000C
388 #define EXT2_EXTENT_DOWN_AND_LAST 0x000D
391 * Flags used by ext2fs_extent_insert()
393 #define EXT2_EXTENT_INSERT_AFTER 0x0001 /* insert after handle loc'n */
394 #define EXT2_EXTENT_INSERT_NOSPLIT 0x0002 /* insert may not cause split */
397 * Flags used by ext2fs_extent_delete()
399 #define EXT2_EXTENT_DELETE_KEEP_EMPTY 0x001 /* keep node if last extnt gone */
402 * Flags used by ext2fs_extent_set_bmap()
404 #define EXT2_EXTENT_SET_BMAP_UNINIT 0x0001
407 * Data structure returned by ext2fs_extent_get_info()
409 struct ext2_extent_info {
419 __u32 max_uninit_len;
423 * Flags for directory block reading and writing functions
425 #define EXT2_DIRBLOCK_V2_STRUCT 0x0001
428 * Return flags for the directory iterator functions
430 #define DIRENT_CHANGED 1
431 #define DIRENT_ABORT 2
432 #define DIRENT_ERROR 3
435 * Directory iterator flags
438 #define DIRENT_FLAG_INCLUDE_EMPTY 1
439 #define DIRENT_FLAG_INCLUDE_REMOVED 2
440 #define DIRENT_FLAG_INCLUDE_CSUM 4
441 #define DIRENT_FLAG_INCLUDE_INLINE_DATA 8
443 #define DIRENT_DOT_FILE 1
444 #define DIRENT_DOT_DOT_FILE 2
445 #define DIRENT_OTHER_FILE 3
446 #define DIRENT_DELETED_FILE 4
447 #define DIRENT_CHECKSUM 5
450 * Inode scan definitions
452 typedef struct ext2_struct_inode_scan *ext2_inode_scan;
457 #define EXT2_SF_CHK_BADBLOCKS 0x0001
458 #define EXT2_SF_BAD_INODE_BLK 0x0002
459 #define EXT2_SF_BAD_EXTRA_BYTES 0x0004
460 #define EXT2_SF_SKIP_MISSING_ITABLE 0x0008
461 #define EXT2_SF_DO_LAZY 0x0010
462 #define EXT2_SF_WARN_GARBAGE_INODES 0x0020
465 * ext2fs_check_if_mounted flags
467 #define EXT2_MF_MOUNTED 1
468 #define EXT2_MF_ISROOT 2
469 #define EXT2_MF_READONLY 4
470 #define EXT2_MF_SWAP 8
471 #define EXT2_MF_BUSY 16
474 * Ext2/linux mode flags. We define them here so that we don't need
475 * to depend on the OS's sys/stat.h, since we may be compiling on a
478 #define LINUX_S_IFMT 00170000
479 #define LINUX_S_IFSOCK 0140000
480 #define LINUX_S_IFLNK 0120000
481 #define LINUX_S_IFREG 0100000
482 #define LINUX_S_IFBLK 0060000
483 #define LINUX_S_IFDIR 0040000
484 #define LINUX_S_IFCHR 0020000
485 #define LINUX_S_IFIFO 0010000
486 #define LINUX_S_ISUID 0004000
487 #define LINUX_S_ISGID 0002000
488 #define LINUX_S_ISVTX 0001000
490 #define LINUX_S_IRWXU 00700
491 #define LINUX_S_IRUSR 00400
492 #define LINUX_S_IWUSR 00200
493 #define LINUX_S_IXUSR 00100
495 #define LINUX_S_IRWXG 00070
496 #define LINUX_S_IRGRP 00040
497 #define LINUX_S_IWGRP 00020
498 #define LINUX_S_IXGRP 00010
500 #define LINUX_S_IRWXO 00007
501 #define LINUX_S_IROTH 00004
502 #define LINUX_S_IWOTH 00002
503 #define LINUX_S_IXOTH 00001
505 #define LINUX_S_ISLNK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFLNK)
506 #define LINUX_S_ISREG(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFREG)
507 #define LINUX_S_ISDIR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFDIR)
508 #define LINUX_S_ISCHR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFCHR)
509 #define LINUX_S_ISBLK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFBLK)
510 #define LINUX_S_ISFIFO(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFIFO)
511 #define LINUX_S_ISSOCK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFSOCK)
514 * ext2 size of an inode
516 #define EXT2_I_SIZE(i) ((i)->i_size | ((__u64) (i)->i_size_high << 32))
519 * ext2_icount_t abstraction
521 #define EXT2_ICOUNT_OPT_INCREMENT 0x01
523 typedef struct ext2_icount *ext2_icount_t;
526 * Flags for ext2fs_bmap
528 #define BMAP_ALLOC 0x0001
529 #define BMAP_SET 0x0002
532 * Returned flags from ext2fs_bmap
534 #define BMAP_RET_UNINIT 0x0001
537 * Flags for imager.c functions
539 #define IMAGER_FLAG_INODEMAP 1
540 #define IMAGER_FLAG_SPARSEWRITE 2
543 * For checking structure magic numbers...
546 #define EXT2_CHECK_MAGIC(struct, code) \
547 if ((struct)->magic != (code)) return (code)
550 * Features supported by this version of the library
552 #define EXT2_LIB_FEATURE_COMPAT_SUPP (EXT2_FEATURE_COMPAT_DIR_PREALLOC|\
553 EXT2_FEATURE_COMPAT_IMAGIC_INODES|\
554 EXT3_FEATURE_COMPAT_HAS_JOURNAL|\
555 EXT2_FEATURE_COMPAT_RESIZE_INODE|\
556 EXT2_FEATURE_COMPAT_DIR_INDEX|\
557 EXT2_FEATURE_COMPAT_EXT_ATTR|\
558 EXT4_FEATURE_COMPAT_SPARSE_SUPER2)
561 #define EXT4_LIB_INCOMPAT_MMP EXT4_FEATURE_INCOMPAT_MMP
563 #define EXT4_LIB_INCOMPAT_MMP (0)
567 #define EXT4_LIB_RO_COMPAT_QUOTA EXT4_FEATURE_RO_COMPAT_QUOTA
569 #define EXT4_LIB_RO_COMPAT_QUOTA (0)
572 #define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\
573 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\
574 EXT2_FEATURE_INCOMPAT_META_BG|\
575 EXT3_FEATURE_INCOMPAT_RECOVER|\
576 EXT3_FEATURE_INCOMPAT_EXTENTS|\
577 EXT4_FEATURE_INCOMPAT_FLEX_BG|\
578 EXT4_LIB_INCOMPAT_MMP|\
579 EXT4_FEATURE_INCOMPAT_64BIT|\
580 EXT4_FEATURE_INCOMPAT_INLINE_DATA|\
581 EXT4_FEATURE_INCOMPAT_ENCRYPT)
583 #define EXT2_LIB_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|\
584 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|\
585 EXT2_FEATURE_RO_COMPAT_LARGE_FILE|\
586 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|\
587 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|\
588 EXT4_FEATURE_RO_COMPAT_GDT_CSUM|\
589 EXT4_FEATURE_RO_COMPAT_BIGALLOC|\
590 EXT4_LIB_RO_COMPAT_QUOTA|\
591 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM|\
592 EXT4_FEATURE_RO_COMPAT_READONLY)
595 * These features are only allowed if EXT2_FLAG_SOFTSUPP_FEATURES is passed
598 #define EXT2_LIB_SOFTSUPP_INCOMPAT (0)
599 #define EXT2_LIB_SOFTSUPP_RO_COMPAT (EXT4_FEATURE_RO_COMPAT_REPLICA)
602 /* Translate a block number to a cluster number */
603 #define EXT2FS_CLUSTER_RATIO(fs) (1 << (fs)->cluster_ratio_bits)
604 #define EXT2FS_CLUSTER_MASK(fs) (EXT2FS_CLUSTER_RATIO(fs) - 1)
605 #define EXT2FS_B2C(fs, blk) ((blk) >> (fs)->cluster_ratio_bits)
606 /* Translate a cluster number to a block number */
607 #define EXT2FS_C2B(fs, cluster) ((cluster) << (fs)->cluster_ratio_bits)
608 /* Translate # of blks to # of clusters */
609 #define EXT2FS_NUM_B2C(fs, blks) (((blks) + EXT2FS_CLUSTER_MASK(fs)) >> \
610 (fs)->cluster_ratio_bits)
612 #if defined(HAVE_FSTAT64) && !defined(__OSX_AVAILABLE_BUT_DEPRECATED)
613 typedef struct stat64 ext2fs_struct_stat;
615 typedef struct stat ext2fs_struct_stat;
619 * For ext2fs_close2() and ext2fs_flush2(), this flag allows you to
620 * avoid the fsync call.
622 #define EXT2_FLAG_FLUSH_NO_SYNC 1
625 * Modify and iterate extended attributes
627 struct ext2_xattr_handle;
628 #define XATTR_ABORT 1
629 #define XATTR_CHANGED 2
632 * function prototypes
634 static inline int ext2fs_has_group_desc_csum(ext2_filsys fs)
636 return EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
637 EXT4_FEATURE_RO_COMPAT_GDT_CSUM |
638 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM);
641 /* The LARGE_FILE feature should be set if we have stored files 2GB+ in size */
642 static inline int ext2fs_needs_large_file_feature(unsigned long long file_size)
644 return file_size >= 0x80000000ULL;
648 extern errcode_t ext2fs_new_inode(ext2_filsys fs, ext2_ino_t dir, int mode,
649 ext2fs_inode_bitmap map, ext2_ino_t *ret);
650 extern errcode_t ext2fs_new_block(ext2_filsys fs, blk_t goal,
651 ext2fs_block_bitmap map, blk_t *ret);
652 extern errcode_t ext2fs_new_block2(ext2_filsys fs, blk64_t goal,
653 ext2fs_block_bitmap map, blk64_t *ret);
654 extern errcode_t ext2fs_get_free_blocks(ext2_filsys fs, blk_t start,
655 blk_t finish, int num,
656 ext2fs_block_bitmap map,
658 extern errcode_t ext2fs_get_free_blocks2(ext2_filsys fs, blk64_t start,
659 blk64_t finish, int num,
660 ext2fs_block_bitmap map,
662 extern errcode_t ext2fs_alloc_block(ext2_filsys fs, blk_t goal,
663 char *block_buf, blk_t *ret);
664 extern errcode_t ext2fs_alloc_block2(ext2_filsys fs, blk64_t goal,
665 char *block_buf, blk64_t *ret);
666 extern void ext2fs_set_alloc_block_callback(ext2_filsys fs,
667 errcode_t (*func)(ext2_filsys fs,
670 errcode_t (**old)(ext2_filsys fs,
673 blk64_t ext2fs_find_inode_goal(ext2_filsys fs, ext2_ino_t ino,
674 struct ext2_inode *inode, blk64_t lblk);
677 extern int ext2fs_reserve_super_and_bgd(ext2_filsys fs,
679 ext2fs_block_bitmap bmap);
680 extern void ext2fs_set_block_alloc_stats_callback(ext2_filsys fs,
681 void (*func)(ext2_filsys fs,
684 void (**old)(ext2_filsys fs,
689 void ext2fs_inode_alloc_stats(ext2_filsys fs, ext2_ino_t ino, int inuse);
690 void ext2fs_inode_alloc_stats2(ext2_filsys fs, ext2_ino_t ino,
691 int inuse, int isdir);
692 void ext2fs_block_alloc_stats(ext2_filsys fs, blk_t blk, int inuse);
693 void ext2fs_block_alloc_stats2(ext2_filsys fs, blk64_t blk, int inuse);
694 void ext2fs_block_alloc_stats_range(ext2_filsys fs, blk64_t blk,
695 blk_t num, int inuse);
698 extern errcode_t ext2fs_allocate_tables(ext2_filsys fs);
699 extern errcode_t ext2fs_allocate_group_table(ext2_filsys fs, dgrp_t group,
700 ext2fs_block_bitmap bmap);
703 extern errcode_t ext2fs_u32_list_create(ext2_u32_list *ret, int size);
704 extern errcode_t ext2fs_u32_list_add(ext2_u32_list bb, __u32 blk);
705 extern int ext2fs_u32_list_find(ext2_u32_list bb, __u32 blk);
706 extern int ext2fs_u32_list_test(ext2_u32_list bb, blk_t blk);
707 extern errcode_t ext2fs_u32_list_iterate_begin(ext2_u32_list bb,
708 ext2_u32_iterate *ret);
709 extern int ext2fs_u32_list_iterate(ext2_u32_iterate iter, blk_t *blk);
710 extern void ext2fs_u32_list_iterate_end(ext2_u32_iterate iter);
711 extern errcode_t ext2fs_u32_copy(ext2_u32_list src, ext2_u32_list *dest);
712 extern int ext2fs_u32_list_equal(ext2_u32_list bb1, ext2_u32_list bb2);
714 extern errcode_t ext2fs_badblocks_list_create(ext2_badblocks_list *ret,
716 extern errcode_t ext2fs_badblocks_list_add(ext2_badblocks_list bb,
718 extern int ext2fs_badblocks_list_test(ext2_badblocks_list bb,
720 extern int ext2fs_u32_list_del(ext2_u32_list bb, __u32 blk);
721 extern void ext2fs_badblocks_list_del(ext2_u32_list bb, __u32 blk);
723 ext2fs_badblocks_list_iterate_begin(ext2_badblocks_list bb,
724 ext2_badblocks_iterate *ret);
725 extern int ext2fs_badblocks_list_iterate(ext2_badblocks_iterate iter,
727 extern void ext2fs_badblocks_list_iterate_end(ext2_badblocks_iterate iter);
728 extern errcode_t ext2fs_badblocks_copy(ext2_badblocks_list src,
729 ext2_badblocks_list *dest);
730 extern int ext2fs_badblocks_equal(ext2_badblocks_list bb1,
731 ext2_badblocks_list bb2);
732 extern int ext2fs_u32_list_count(ext2_u32_list bb);
735 extern errcode_t badblocks_list_create(badblocks_list *ret, int size);
736 extern errcode_t badblocks_list_add(badblocks_list bb, blk_t blk);
737 extern int badblocks_list_test(badblocks_list bb, blk_t blk);
738 extern errcode_t badblocks_list_iterate_begin(badblocks_list bb,
739 badblocks_iterate *ret);
740 extern int badblocks_list_iterate(badblocks_iterate iter, blk_t *blk);
741 extern void badblocks_list_iterate_end(badblocks_iterate iter);
742 extern void badblocks_list_free(badblocks_list bb);
745 extern errcode_t ext2fs_update_bb_inode(ext2_filsys fs,
746 ext2_badblocks_list bb_list);
749 extern void ext2fs_free_block_bitmap(ext2fs_block_bitmap bitmap);
750 extern void ext2fs_free_inode_bitmap(ext2fs_inode_bitmap bitmap);
751 extern errcode_t ext2fs_copy_bitmap(ext2fs_generic_bitmap src,
752 ext2fs_generic_bitmap *dest);
753 extern errcode_t ext2fs_write_inode_bitmap(ext2_filsys fs);
754 extern errcode_t ext2fs_write_block_bitmap (ext2_filsys fs);
755 extern errcode_t ext2fs_read_inode_bitmap (ext2_filsys fs);
756 extern errcode_t ext2fs_read_block_bitmap(ext2_filsys fs);
757 extern errcode_t ext2fs_allocate_block_bitmap(ext2_filsys fs,
759 ext2fs_block_bitmap *ret);
760 extern errcode_t ext2fs_allocate_subcluster_bitmap(ext2_filsys fs,
762 ext2fs_block_bitmap *ret);
763 extern int ext2fs_get_bitmap_granularity(ext2fs_block_bitmap bitmap);
764 extern errcode_t ext2fs_allocate_inode_bitmap(ext2_filsys fs,
766 ext2fs_inode_bitmap *ret);
767 extern errcode_t ext2fs_fudge_inode_bitmap_end(ext2fs_inode_bitmap bitmap,
768 ext2_ino_t end, ext2_ino_t *oend);
769 extern errcode_t ext2fs_fudge_block_bitmap_end(ext2fs_block_bitmap bitmap,
770 blk_t end, blk_t *oend);
771 extern errcode_t ext2fs_fudge_block_bitmap_end2(ext2fs_block_bitmap bitmap,
772 blk64_t end, blk64_t *oend);
773 extern void ext2fs_clear_inode_bitmap(ext2fs_inode_bitmap bitmap);
774 extern void ext2fs_clear_block_bitmap(ext2fs_block_bitmap bitmap);
775 extern errcode_t ext2fs_read_bitmaps(ext2_filsys fs);
776 extern errcode_t ext2fs_write_bitmaps(ext2_filsys fs);
777 extern errcode_t ext2fs_resize_inode_bitmap(__u32 new_end, __u32 new_real_end,
778 ext2fs_inode_bitmap bmap);
779 extern errcode_t ext2fs_resize_inode_bitmap2(__u64 new_end,
781 ext2fs_inode_bitmap bmap);
782 extern errcode_t ext2fs_resize_block_bitmap(__u32 new_end, __u32 new_real_end,
783 ext2fs_block_bitmap bmap);
784 extern errcode_t ext2fs_resize_block_bitmap2(__u64 new_end,
786 ext2fs_block_bitmap bmap);
787 extern errcode_t ext2fs_compare_block_bitmap(ext2fs_block_bitmap bm1,
788 ext2fs_block_bitmap bm2);
789 extern errcode_t ext2fs_compare_inode_bitmap(ext2fs_inode_bitmap bm1,
790 ext2fs_inode_bitmap bm2);
791 extern errcode_t ext2fs_set_inode_bitmap_range(ext2fs_inode_bitmap bmap,
792 ext2_ino_t start, unsigned int num,
794 extern errcode_t ext2fs_set_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
795 __u64 start, size_t num,
797 extern errcode_t ext2fs_get_inode_bitmap_range(ext2fs_inode_bitmap bmap,
798 ext2_ino_t start, unsigned int num,
800 extern errcode_t ext2fs_get_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
801 __u64 start, size_t num,
803 extern errcode_t ext2fs_set_block_bitmap_range(ext2fs_block_bitmap bmap,
804 blk_t start, unsigned int num,
806 extern errcode_t ext2fs_set_block_bitmap_range2(ext2fs_block_bitmap bmap,
807 blk64_t start, size_t num,
809 extern errcode_t ext2fs_get_block_bitmap_range(ext2fs_block_bitmap bmap,
810 blk_t start, unsigned int num,
812 extern errcode_t ext2fs_get_block_bitmap_range2(ext2fs_block_bitmap bmap,
813 blk64_t start, size_t num,
817 extern __u32 ext2fs_inode_bitmap_checksum(ext2_filsys fs, dgrp_t group);
818 extern __u32 ext2fs_block_bitmap_checksum(ext2_filsys fs, dgrp_t group);
819 extern dgrp_t ext2fs_group_of_blk2(ext2_filsys fs, blk64_t);
820 extern blk64_t ext2fs_group_first_block2(ext2_filsys fs, dgrp_t group);
821 extern blk64_t ext2fs_group_last_block2(ext2_filsys fs, dgrp_t group);
822 extern int ext2fs_group_blocks_count(ext2_filsys fs, dgrp_t group);
823 extern blk64_t ext2fs_inode_data_blocks2(ext2_filsys fs,
824 struct ext2_inode *inode);
825 extern blk64_t ext2fs_inode_i_blocks(ext2_filsys fs,
826 struct ext2_inode *inode);
827 extern blk64_t ext2fs_blocks_count(struct ext2_super_block *super);
828 extern void ext2fs_blocks_count_set(struct ext2_super_block *super,
830 extern void ext2fs_blocks_count_add(struct ext2_super_block *super,
832 extern blk64_t ext2fs_r_blocks_count(struct ext2_super_block *super);
833 extern void ext2fs_r_blocks_count_set(struct ext2_super_block *super,
835 extern void ext2fs_r_blocks_count_add(struct ext2_super_block *super,
837 extern blk64_t ext2fs_free_blocks_count(struct ext2_super_block *super);
838 extern void ext2fs_free_blocks_count_set(struct ext2_super_block *super,
840 extern void ext2fs_free_blocks_count_add(struct ext2_super_block *super,
842 /* Block group descriptor accessor functions */
843 extern struct ext2_group_desc *ext2fs_group_desc(ext2_filsys fs,
844 struct opaque_ext2_group_desc *gdp,
846 extern blk64_t ext2fs_block_bitmap_csum(ext2_filsys fs, dgrp_t group);
847 extern blk64_t ext2fs_block_bitmap_loc(ext2_filsys fs, dgrp_t group);
848 extern void ext2fs_block_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
850 extern __u32 ext2fs_inode_bitmap_csum(ext2_filsys fs, dgrp_t group);
851 extern blk64_t ext2fs_inode_bitmap_loc(ext2_filsys fs, dgrp_t group);
852 extern void ext2fs_inode_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
854 extern blk64_t ext2fs_inode_table_loc(ext2_filsys fs, dgrp_t group);
855 extern void ext2fs_inode_table_loc_set(ext2_filsys fs, dgrp_t group,
857 extern __u32 ext2fs_bg_free_blocks_count(ext2_filsys fs, dgrp_t group);
858 extern void ext2fs_bg_free_blocks_count_set(ext2_filsys fs, dgrp_t group,
860 extern __u32 ext2fs_bg_free_inodes_count(ext2_filsys fs, dgrp_t group);
861 extern void ext2fs_bg_free_inodes_count_set(ext2_filsys fs, dgrp_t group,
863 extern __u32 ext2fs_bg_used_dirs_count(ext2_filsys fs, dgrp_t group);
864 extern void ext2fs_bg_used_dirs_count_set(ext2_filsys fs, dgrp_t group,
866 extern __u32 ext2fs_bg_itable_unused(ext2_filsys fs, dgrp_t group);
867 extern void ext2fs_bg_itable_unused_set(ext2_filsys fs, dgrp_t group,
869 extern __u16 ext2fs_bg_flags(ext2_filsys fs, dgrp_t group);
870 extern void ext2fs_bg_flags_zap(ext2_filsys fs, dgrp_t group);
871 extern int ext2fs_bg_flags_test(ext2_filsys fs, dgrp_t group, __u16 bg_flag);
872 extern void ext2fs_bg_flags_set(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
873 extern void ext2fs_bg_flags_clear(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
874 extern __u16 ext2fs_bg_checksum(ext2_filsys fs, dgrp_t group);
875 extern void ext2fs_bg_checksum_set(ext2_filsys fs, dgrp_t group, __u16 checksum);
876 extern blk64_t ext2fs_file_acl_block(ext2_filsys fs,
877 const struct ext2_inode *inode);
878 extern void ext2fs_file_acl_block_set(ext2_filsys fs,
879 struct ext2_inode *inode, blk64_t blk);
880 extern errcode_t ext2fs_inode_size_set(ext2_filsys fs, struct ext2_inode *inode,
884 extern errcode_t ext2fs_block_iterate(ext2_filsys fs,
888 int (*func)(ext2_filsys fs,
893 errcode_t ext2fs_block_iterate2(ext2_filsys fs,
897 int (*func)(ext2_filsys fs,
899 e2_blkcnt_t blockcnt,
904 errcode_t ext2fs_block_iterate3(ext2_filsys fs,
908 int (*func)(ext2_filsys fs,
910 e2_blkcnt_t blockcnt,
917 extern errcode_t ext2fs_bmap(ext2_filsys fs, ext2_ino_t ino,
918 struct ext2_inode *inode,
919 char *block_buf, int bmap_flags,
920 blk_t block, blk_t *phys_blk);
921 extern errcode_t ext2fs_bmap2(ext2_filsys fs, ext2_ino_t ino,
922 struct ext2_inode *inode,
923 char *block_buf, int bmap_flags, blk64_t block,
924 int *ret_flags, blk64_t *phys_blk);
925 errcode_t ext2fs_map_cluster_block(ext2_filsys fs, ext2_ino_t ino,
926 struct ext2_inode *inode, blk64_t lblk,
931 extern errcode_t ext2fs_move_blocks(ext2_filsys fs,
932 ext2fs_block_bitmap reserve,
933 ext2fs_block_bitmap alloc_map,
938 extern errcode_t ext2fs_check_desc(ext2_filsys fs);
941 extern errcode_t ext2fs_close(ext2_filsys fs);
942 extern errcode_t ext2fs_close2(ext2_filsys fs, int flags);
943 extern errcode_t ext2fs_close_free(ext2_filsys *fs);
944 extern errcode_t ext2fs_flush(ext2_filsys fs);
945 extern errcode_t ext2fs_flush2(ext2_filsys fs, int flags);
946 extern int ext2fs_bg_has_super(ext2_filsys fs, dgrp_t group_block);
947 extern errcode_t ext2fs_super_and_bgd_loc2(ext2_filsys fs,
949 blk64_t *ret_super_blk,
950 blk64_t *ret_old_desc_blk,
951 blk64_t *ret_new_desc_blk,
952 blk_t *ret_used_blks);
953 extern int ext2fs_super_and_bgd_loc(ext2_filsys fs,
955 blk_t *ret_super_blk,
956 blk_t *ret_old_desc_blk,
957 blk_t *ret_new_desc_blk,
959 extern void ext2fs_update_dynamic_rev(ext2_filsys fs);
962 extern __u32 ext2fs_crc32_be(__u32 crc, unsigned char const *p, size_t len);
963 extern __u32 ext2fs_crc32c_le(__u32 crc, unsigned char const *p, size_t len);
966 extern errcode_t ext2fs_mmp_csum_set(ext2_filsys fs, struct mmp_struct *mmp);
967 extern int ext2fs_mmp_csum_verify(ext2_filsys, struct mmp_struct *mmp);
968 extern int ext2fs_verify_csum_type(ext2_filsys fs, struct ext2_super_block *sb);
969 extern errcode_t ext2fs_superblock_csum_set(ext2_filsys fs,
970 struct ext2_super_block *sb);
971 extern int ext2fs_superblock_csum_verify(ext2_filsys fs,
972 struct ext2_super_block *sb);
973 extern errcode_t ext2fs_ext_attr_block_csum_set(ext2_filsys fs,
974 ext2_ino_t inum, blk64_t block,
975 struct ext2_ext_attr_header *hdr);
976 extern int ext2fs_ext_attr_block_csum_verify(ext2_filsys fs, ext2_ino_t inum,
978 struct ext2_ext_attr_header *hdr);
979 #define EXT2_DIRENT_TAIL(block, blocksize) \
980 ((struct ext2_dir_entry_tail *)(((char *)(block)) + \
981 (blocksize) - sizeof(struct ext2_dir_entry_tail)))
983 extern void ext2fs_initialize_dirent_tail(ext2_filsys fs,
984 struct ext2_dir_entry_tail *t);
985 extern int ext2fs_dirent_has_tail(ext2_filsys fs,
986 struct ext2_dir_entry *dirent);
987 extern int ext2fs_dirent_csum_verify(ext2_filsys fs, ext2_ino_t inum,
988 struct ext2_dir_entry *dirent);
989 extern int ext2fs_dir_block_csum_verify(ext2_filsys fs, ext2_ino_t inum,
990 struct ext2_dir_entry *dirent);
991 extern errcode_t ext2fs_dir_block_csum_set(ext2_filsys fs, ext2_ino_t inum,
992 struct ext2_dir_entry *dirent);
993 extern errcode_t ext2fs_get_dx_countlimit(ext2_filsys fs,
994 struct ext2_dir_entry *dirent,
995 struct ext2_dx_countlimit **cc,
997 extern errcode_t ext2fs_extent_block_csum_set(ext2_filsys fs,
999 struct ext3_extent_header *eh);
1000 extern int ext2fs_extent_block_csum_verify(ext2_filsys fs,
1002 struct ext3_extent_header *eh);
1003 extern errcode_t ext2fs_block_bitmap_csum_set(ext2_filsys fs, dgrp_t group,
1004 char *bitmap, int size);
1005 extern int ext2fs_block_bitmap_csum_verify(ext2_filsys fs, dgrp_t group,
1006 char *bitmap, int size);
1007 extern errcode_t ext2fs_inode_bitmap_csum_set(ext2_filsys fs, dgrp_t group,
1008 char *bitmap, int size);
1009 extern int ext2fs_inode_bitmap_csum_verify(ext2_filsys fs, dgrp_t group,
1010 char *bitmap, int size);
1011 extern errcode_t ext2fs_inode_csum_set(ext2_filsys fs, ext2_ino_t inum,
1012 struct ext2_inode_large *inode);
1013 extern int ext2fs_inode_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1014 struct ext2_inode_large *inode);
1015 extern void ext2fs_group_desc_csum_set(ext2_filsys fs, dgrp_t group);
1016 extern int ext2fs_group_desc_csum_verify(ext2_filsys fs, dgrp_t group);
1017 extern errcode_t ext2fs_set_gdt_csum(ext2_filsys fs);
1018 extern __u16 ext2fs_group_desc_csum(ext2_filsys fs, dgrp_t group);
1021 extern errcode_t ext2fs_init_dblist(ext2_filsys fs, ext2_dblist *ret_dblist);
1022 extern errcode_t ext2fs_add_dir_block(ext2_dblist dblist, ext2_ino_t ino,
1023 blk_t blk, int blockcnt);
1024 extern errcode_t ext2fs_add_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
1025 blk64_t blk, e2_blkcnt_t blockcnt);
1026 extern void ext2fs_dblist_sort(ext2_dblist dblist,
1027 EXT2_QSORT_TYPE (*sortfunc)(const void *,
1029 extern void ext2fs_dblist_sort2(ext2_dblist dblist,
1030 EXT2_QSORT_TYPE (*sortfunc)(const void *,
1032 extern errcode_t ext2fs_dblist_iterate(ext2_dblist dblist,
1033 int (*func)(ext2_filsys fs, struct ext2_db_entry *db_info,
1036 extern errcode_t ext2fs_dblist_iterate2(ext2_dblist dblist,
1037 int (*func)(ext2_filsys fs, struct ext2_db_entry2 *db_info,
1040 extern errcode_t ext2fs_dblist_iterate3(ext2_dblist dblist,
1041 int (*func)(ext2_filsys fs, struct ext2_db_entry2 *db_info,
1043 unsigned long long start,
1044 unsigned long long count,
1046 extern errcode_t ext2fs_set_dir_block(ext2_dblist dblist, ext2_ino_t ino,
1047 blk_t blk, int blockcnt);
1048 extern errcode_t ext2fs_set_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
1049 blk64_t blk, e2_blkcnt_t blockcnt);
1050 extern errcode_t ext2fs_copy_dblist(ext2_dblist src,
1052 extern int ext2fs_dblist_count(ext2_dblist dblist);
1053 extern blk64_t ext2fs_dblist_count2(ext2_dblist dblist);
1054 extern errcode_t ext2fs_dblist_get_last(ext2_dblist dblist,
1055 struct ext2_db_entry **entry);
1056 extern errcode_t ext2fs_dblist_get_last2(ext2_dblist dblist,
1057 struct ext2_db_entry2 **entry);
1058 extern errcode_t ext2fs_dblist_drop_last(ext2_dblist dblist);
1062 ext2fs_dblist_dir_iterate(ext2_dblist dblist,
1065 int (*func)(ext2_ino_t dir,
1067 struct ext2_dir_entry *dirent,
1075 /* digest_encode.c */
1076 #define EXT2FS_DIGEST_SIZE EXT2FS_SHA256_LENGTH
1077 extern int ext2fs_digest_encode(const char *src, int len, char *dst);
1078 extern int ext2fs_digest_decode(const char *src, int len, char *dst);
1082 extern errcode_t ext2fs_read_dir_block(ext2_filsys fs, blk_t block,
1084 extern errcode_t ext2fs_read_dir_block2(ext2_filsys fs, blk_t block,
1085 void *buf, int flags);
1086 extern errcode_t ext2fs_read_dir_block3(ext2_filsys fs, blk64_t block,
1087 void *buf, int flags);
1088 extern errcode_t ext2fs_read_dir_block4(ext2_filsys fs, blk64_t block,
1089 void *buf, int flags, ext2_ino_t ino);
1090 extern errcode_t ext2fs_write_dir_block(ext2_filsys fs, blk_t block,
1092 extern errcode_t ext2fs_write_dir_block2(ext2_filsys fs, blk_t block,
1093 void *buf, int flags);
1094 extern errcode_t ext2fs_write_dir_block3(ext2_filsys fs, blk64_t block,
1095 void *buf, int flags);
1096 extern errcode_t ext2fs_write_dir_block4(ext2_filsys fs, blk64_t block,
1097 void *buf, int flags, ext2_ino_t ino);
1100 extern errcode_t ext2fs_dirhash(int version, const char *name, int len,
1102 ext2_dirhash_t *ret_hash,
1103 ext2_dirhash_t *ret_minor_hash);
1107 extern errcode_t ext2fs_get_rec_len(ext2_filsys fs,
1108 struct ext2_dir_entry *dirent,
1109 unsigned int *rec_len);
1110 extern errcode_t ext2fs_set_rec_len(ext2_filsys fs,
1112 struct ext2_dir_entry *dirent);
1113 extern errcode_t ext2fs_dir_iterate(ext2_filsys fs,
1117 int (*func)(struct ext2_dir_entry *dirent,
1123 extern errcode_t ext2fs_dir_iterate2(ext2_filsys fs,
1127 int (*func)(ext2_ino_t dir,
1129 struct ext2_dir_entry *dirent,
1137 extern errcode_t ext2fs_dup_handle(ext2_filsys src, ext2_filsys *dest);
1140 extern errcode_t ext2fs_expand_dir(ext2_filsys fs, ext2_ino_t dir);
1143 extern __u32 ext2fs_ext_attr_hash_entry(struct ext2_ext_attr_entry *entry,
1145 extern errcode_t ext2fs_read_ext_attr(ext2_filsys fs, blk_t block, void *buf);
1146 extern errcode_t ext2fs_read_ext_attr2(ext2_filsys fs, blk64_t block,
1148 extern errcode_t ext2fs_read_ext_attr3(ext2_filsys fs, blk64_t block,
1149 void *buf, ext2_ino_t inum);
1150 extern errcode_t ext2fs_write_ext_attr(ext2_filsys fs, blk_t block,
1152 extern errcode_t ext2fs_write_ext_attr2(ext2_filsys fs, blk64_t block,
1154 extern errcode_t ext2fs_write_ext_attr3(ext2_filsys fs, blk64_t block,
1155 void *buf, ext2_ino_t inum);
1156 extern errcode_t ext2fs_adjust_ea_refcount(ext2_filsys fs, blk_t blk,
1158 int adjust, __u32 *newcount);
1159 extern errcode_t ext2fs_adjust_ea_refcount2(ext2_filsys fs, blk64_t blk,
1161 int adjust, __u32 *newcount);
1162 extern errcode_t ext2fs_adjust_ea_refcount3(ext2_filsys fs, blk64_t blk,
1164 int adjust, __u32 *newcount,
1166 errcode_t ext2fs_xattrs_write(struct ext2_xattr_handle *handle);
1167 errcode_t ext2fs_xattrs_read(struct ext2_xattr_handle *handle);
1168 errcode_t ext2fs_xattrs_iterate(struct ext2_xattr_handle *h,
1169 int (*func)(char *name, char *value,
1170 size_t value_len, void *data),
1172 errcode_t ext2fs_xattr_get(struct ext2_xattr_handle *h, const char *key,
1173 void **value, size_t *value_len);
1174 errcode_t ext2fs_xattr_set(struct ext2_xattr_handle *handle,
1178 errcode_t ext2fs_xattr_remove(struct ext2_xattr_handle *handle,
1180 errcode_t ext2fs_xattrs_open(ext2_filsys fs, ext2_ino_t ino,
1181 struct ext2_xattr_handle **handle);
1182 errcode_t ext2fs_xattrs_close(struct ext2_xattr_handle **handle);
1183 errcode_t ext2fs_free_ext_attr(ext2_filsys fs, ext2_ino_t ino,
1184 struct ext2_inode_large *inode);
1185 errcode_t ext2fs_xattrs_count(struct ext2_xattr_handle *handle, size_t *count);
1186 errcode_t ext2fs_xattr_inode_max_size(ext2_filsys fs, ext2_ino_t ino,
1190 extern errcode_t ext2fs_extent_header_verify(void *ptr, int size);
1191 extern errcode_t ext2fs_extent_open(ext2_filsys fs, ext2_ino_t ino,
1192 ext2_extent_handle_t *handle);
1193 extern errcode_t ext2fs_extent_open2(ext2_filsys fs, ext2_ino_t ino,
1194 struct ext2_inode *inode,
1195 ext2_extent_handle_t *ret_handle);
1196 extern void ext2fs_extent_free(ext2_extent_handle_t handle);
1197 extern errcode_t ext2fs_extent_get(ext2_extent_handle_t handle,
1198 int flags, struct ext2fs_extent *extent);
1199 extern errcode_t ext2fs_extent_node_split(ext2_extent_handle_t handle);
1200 extern errcode_t ext2fs_extent_replace(ext2_extent_handle_t handle, int flags,
1201 struct ext2fs_extent *extent);
1202 extern errcode_t ext2fs_extent_insert(ext2_extent_handle_t handle, int flags,
1203 struct ext2fs_extent *extent);
1204 extern errcode_t ext2fs_extent_set_bmap(ext2_extent_handle_t handle,
1205 blk64_t logical, blk64_t physical,
1207 extern errcode_t ext2fs_extent_delete(ext2_extent_handle_t handle, int flags);
1208 extern errcode_t ext2fs_extent_get_info(ext2_extent_handle_t handle,
1209 struct ext2_extent_info *info);
1210 extern errcode_t ext2fs_extent_goto(ext2_extent_handle_t handle,
1212 extern errcode_t ext2fs_extent_goto2(ext2_extent_handle_t handle,
1213 int leaf_level, blk64_t blk);
1214 extern errcode_t ext2fs_extent_fix_parents(ext2_extent_handle_t handle);
1215 size_t ext2fs_max_extent_depth(ext2_extent_handle_t handle);
1218 extern errcode_t ext2fs_file_open2(ext2_filsys fs, ext2_ino_t ino,
1219 struct ext2_inode *inode,
1220 int flags, ext2_file_t *ret);
1221 extern errcode_t ext2fs_file_open(ext2_filsys fs, ext2_ino_t ino,
1222 int flags, ext2_file_t *ret);
1223 extern ext2_filsys ext2fs_file_get_fs(ext2_file_t file);
1224 struct ext2_inode *ext2fs_file_get_inode(ext2_file_t file);
1225 extern ext2_ino_t ext2fs_file_get_inode_num(ext2_file_t file);
1226 extern errcode_t ext2fs_file_close(ext2_file_t file);
1227 extern errcode_t ext2fs_file_flush(ext2_file_t file);
1228 extern errcode_t ext2fs_file_read(ext2_file_t file, void *buf,
1229 unsigned int wanted, unsigned int *got);
1230 extern errcode_t ext2fs_file_write(ext2_file_t file, const void *buf,
1231 unsigned int nbytes, unsigned int *written);
1232 extern errcode_t ext2fs_file_llseek(ext2_file_t file, __u64 offset,
1233 int whence, __u64 *ret_pos);
1234 extern errcode_t ext2fs_file_lseek(ext2_file_t file, ext2_off_t offset,
1235 int whence, ext2_off_t *ret_pos);
1236 errcode_t ext2fs_file_get_lsize(ext2_file_t file, __u64 *ret_size);
1237 extern ext2_off_t ext2fs_file_get_size(ext2_file_t file);
1238 extern errcode_t ext2fs_file_set_size(ext2_file_t file, ext2_off_t size);
1239 extern errcode_t ext2fs_file_set_size2(ext2_file_t file, ext2_off64_t size);
1242 extern char *ext2fs_find_block_device(dev_t device);
1245 extern errcode_t ext2fs_sync_device(int fd, int flushb);
1248 extern void ext2fs_free(ext2_filsys fs);
1249 extern void ext2fs_free_dblist(ext2_dblist dblist);
1250 extern void ext2fs_badblocks_list_free(ext2_badblocks_list bb);
1251 extern void ext2fs_u32_list_free(ext2_u32_list bb);
1254 extern void ext2fs_free_generic_bitmap(ext2fs_inode_bitmap bitmap);
1255 extern errcode_t ext2fs_make_generic_bitmap(errcode_t magic, ext2_filsys fs,
1256 __u32 start, __u32 end,
1258 const char *descr, char *init_map,
1259 ext2fs_generic_bitmap *ret);
1260 extern errcode_t ext2fs_allocate_generic_bitmap(__u32 start,
1264 ext2fs_generic_bitmap *ret);
1265 extern errcode_t ext2fs_copy_generic_bitmap(ext2fs_generic_bitmap src,
1266 ext2fs_generic_bitmap *dest);
1267 extern void ext2fs_clear_generic_bitmap(ext2fs_generic_bitmap bitmap);
1268 extern errcode_t ext2fs_fudge_generic_bitmap_end(ext2fs_inode_bitmap bitmap,
1273 extern void ext2fs_set_generic_bitmap_padding(ext2fs_generic_bitmap map);
1274 extern errcode_t ext2fs_resize_generic_bitmap(errcode_t magic,
1277 ext2fs_generic_bitmap bmap);
1278 extern errcode_t ext2fs_compare_generic_bitmap(errcode_t magic, errcode_t neq,
1279 ext2fs_generic_bitmap bm1,
1280 ext2fs_generic_bitmap bm2);
1281 extern errcode_t ext2fs_get_generic_bitmap_range(ext2fs_generic_bitmap bmap,
1283 __u32 start, __u32 num,
1285 extern errcode_t ext2fs_set_generic_bitmap_range(ext2fs_generic_bitmap bmap,
1287 __u32 start, __u32 num,
1289 extern errcode_t ext2fs_find_first_zero_generic_bitmap(ext2fs_generic_bitmap bitmap,
1290 __u32 start, __u32 end,
1292 extern errcode_t ext2fs_find_first_set_generic_bitmap(ext2fs_generic_bitmap bitmap,
1293 __u32 start, __u32 end,
1296 /* gen_bitmap64.c */
1297 void ext2fs_free_generic_bmap(ext2fs_generic_bitmap bmap);
1298 errcode_t ext2fs_alloc_generic_bmap(ext2_filsys fs, errcode_t magic,
1299 int type, __u64 start, __u64 end,
1302 ext2fs_generic_bitmap *ret);
1303 errcode_t ext2fs_copy_generic_bmap(ext2fs_generic_bitmap src,
1304 ext2fs_generic_bitmap *dest);
1305 void ext2fs_clear_generic_bmap(ext2fs_generic_bitmap bitmap);
1306 errcode_t ext2fs_fudge_generic_bmap_end(ext2fs_generic_bitmap bitmap,
1308 __u64 end, __u64 *oend);
1309 void ext2fs_set_generic_bmap_padding(ext2fs_generic_bitmap bmap);
1310 errcode_t ext2fs_resize_generic_bmap(ext2fs_generic_bitmap bmap,
1312 __u64 new_real_end);
1313 errcode_t ext2fs_compare_generic_bmap(errcode_t neq,
1314 ext2fs_generic_bitmap bm1,
1315 ext2fs_generic_bitmap bm2);
1316 errcode_t ext2fs_get_generic_bmap_range(ext2fs_generic_bitmap bmap,
1317 __u64 start, unsigned int num,
1319 errcode_t ext2fs_set_generic_bmap_range(ext2fs_generic_bitmap bmap,
1320 __u64 start, unsigned int num,
1322 errcode_t ext2fs_convert_subcluster_bitmap(ext2_filsys fs,
1323 ext2fs_block_bitmap *bitmap);
1325 /* get_num_dirs.c */
1326 extern errcode_t ext2fs_get_num_dirs(ext2_filsys fs, ext2_ino_t *ret_num_dirs);
1329 extern errcode_t ext2fs_get_device_size(const char *file, int blocksize,
1331 extern errcode_t ext2fs_get_device_size2(const char *file, int blocksize,
1332 blk64_t *retblocks);
1335 extern int ext2fs_get_dio_alignment(int fd);
1336 errcode_t ext2fs_get_device_sectsize(const char *file, int *sectsize);
1337 errcode_t ext2fs_get_device_phys_sectsize(const char *file, int *sectsize);
1340 errcode_t ext2fs_iblk_add_blocks(ext2_filsys fs, struct ext2_inode *inode,
1341 blk64_t num_blocks);
1342 errcode_t ext2fs_iblk_sub_blocks(ext2_filsys fs, struct ext2_inode *inode,
1343 blk64_t num_blocks);
1344 errcode_t ext2fs_iblk_set(ext2_filsys fs, struct ext2_inode *inode, blk64_t b);
1347 extern errcode_t ext2fs_image_inode_write(ext2_filsys fs, int fd, int flags);
1348 extern errcode_t ext2fs_image_inode_read(ext2_filsys fs, int fd, int flags);
1349 extern errcode_t ext2fs_image_super_write(ext2_filsys fs, int fd, int flags);
1350 extern errcode_t ext2fs_image_super_read(ext2_filsys fs, int fd, int flags);
1351 extern errcode_t ext2fs_image_bitmap_write(ext2_filsys fs, int fd, int flags);
1352 extern errcode_t ext2fs_image_bitmap_read(ext2_filsys fs, int fd, int flags);
1355 errcode_t ext2fs_read_ind_block(ext2_filsys fs, blk_t blk, void *buf);
1356 errcode_t ext2fs_write_ind_block(ext2_filsys fs, blk_t blk, void *buf);
1359 extern errcode_t ext2fs_initialize(const char *name, int flags,
1360 struct ext2_super_block *param,
1361 io_manager manager, ext2_filsys *ret_fs);
1364 extern void ext2fs_free_icount(ext2_icount_t icount);
1365 extern errcode_t ext2fs_create_icount_tdb(ext2_filsys fs, char *tdb_dir,
1366 int flags, ext2_icount_t *ret);
1367 extern errcode_t ext2fs_create_icount2(ext2_filsys fs, int flags,
1369 ext2_icount_t hint, ext2_icount_t *ret);
1370 extern errcode_t ext2fs_create_icount(ext2_filsys fs, int flags,
1372 ext2_icount_t *ret);
1373 extern errcode_t ext2fs_icount_fetch(ext2_icount_t icount, ext2_ino_t ino,
1375 extern errcode_t ext2fs_icount_increment(ext2_icount_t icount, ext2_ino_t ino,
1377 extern errcode_t ext2fs_icount_decrement(ext2_icount_t icount, ext2_ino_t ino,
1379 extern errcode_t ext2fs_icount_store(ext2_icount_t icount, ext2_ino_t ino,
1381 extern ext2_ino_t ext2fs_get_icount_size(ext2_icount_t icount);
1382 errcode_t ext2fs_icount_validate(ext2_icount_t icount, FILE *);
1386 extern errcode_t ext2fs_get_memalign(unsigned long size,
1387 unsigned long align, void *ptr);
1390 extern errcode_t ext2fs_inline_data_init(ext2_filsys fs, ext2_ino_t ino);
1391 extern errcode_t ext2fs_inline_data_size(ext2_filsys fs, ext2_ino_t ino,
1393 extern errcode_t ext2fs_inline_data_get(ext2_filsys fs, ext2_ino_t ino,
1394 struct ext2_inode *inode,
1395 void *buf, size_t *size);
1396 extern errcode_t ext2fs_inline_data_set(ext2_filsys fs, ext2_ino_t ino,
1397 struct ext2_inode *inode,
1398 void *buf, size_t size);
1401 extern errcode_t ext2fs_create_inode_cache(ext2_filsys fs,
1402 unsigned int cache_size);
1403 extern void ext2fs_free_inode_cache(struct ext2_inode_cache *icache);
1404 extern errcode_t ext2fs_flush_icache(ext2_filsys fs);
1405 extern errcode_t ext2fs_get_next_inode_full(ext2_inode_scan scan,
1407 struct ext2_inode *inode,
1409 #define EXT2_INODE_SCAN_DEFAULT_BUFFER_BLOCKS 8
1410 extern errcode_t ext2fs_open_inode_scan(ext2_filsys fs, int buffer_blocks,
1411 ext2_inode_scan *ret_scan);
1412 extern void ext2fs_close_inode_scan(ext2_inode_scan scan);
1413 extern errcode_t ext2fs_get_next_inode(ext2_inode_scan scan, ext2_ino_t *ino,
1414 struct ext2_inode *inode);
1415 extern errcode_t ext2fs_inode_scan_goto_blockgroup(ext2_inode_scan scan,
1417 extern void ext2fs_set_inode_callback
1418 (ext2_inode_scan scan,
1419 errcode_t (*done_group)(ext2_filsys fs,
1420 ext2_inode_scan scan,
1423 void *done_group_data);
1424 extern int ext2fs_inode_scan_flags(ext2_inode_scan scan, int set_flags,
1426 extern errcode_t ext2fs_read_inode_full(ext2_filsys fs, ext2_ino_t ino,
1427 struct ext2_inode * inode,
1429 extern errcode_t ext2fs_read_inode (ext2_filsys fs, ext2_ino_t ino,
1430 struct ext2_inode * inode);
1431 extern errcode_t ext2fs_write_inode_full(ext2_filsys fs, ext2_ino_t ino,
1432 struct ext2_inode * inode,
1434 extern errcode_t ext2fs_write_inode(ext2_filsys fs, ext2_ino_t ino,
1435 struct ext2_inode * inode);
1436 extern errcode_t ext2fs_write_new_inode(ext2_filsys fs, ext2_ino_t ino,
1437 struct ext2_inode * inode);
1438 extern errcode_t ext2fs_get_blocks(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
1439 extern errcode_t ext2fs_check_directory(ext2_filsys fs, ext2_ino_t ino);
1442 extern io_manager inode_io_manager;
1443 extern errcode_t ext2fs_inode_io_intern(ext2_filsys fs, ext2_ino_t ino,
1445 extern errcode_t ext2fs_inode_io_intern2(ext2_filsys fs, ext2_ino_t ino,
1446 struct ext2_inode *inode,
1450 extern errcode_t ext2fs_check_if_mounted(const char *file, int *mount_flags);
1451 extern errcode_t ext2fs_check_mount_point(const char *device, int *mount_flags,
1452 char *mtpt, int mtlen);
1456 * NOTE: This function removes from an inode the blocks "start", "end", and
1457 * every block in between.
1459 extern errcode_t ext2fs_punch(ext2_filsys fs, ext2_ino_t ino,
1460 struct ext2_inode *inode,
1461 char *block_buf, blk64_t start,
1465 extern errcode_t ext2fs_lookup(ext2_filsys fs, ext2_ino_t dir, const char *name,
1466 int namelen, char *buf, ext2_ino_t *inode);
1467 extern errcode_t ext2fs_namei(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1468 const char *name, ext2_ino_t *inode);
1469 errcode_t ext2fs_namei_follow(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1470 const char *name, ext2_ino_t *inode);
1471 extern errcode_t ext2fs_follow_link(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1472 ext2_ino_t inode, ext2_ino_t *res_inode);
1475 int ext2fs_native_flag(void);
1478 extern errcode_t ext2fs_new_dir_block(ext2_filsys fs, ext2_ino_t dir_ino,
1479 ext2_ino_t parent_ino, char **block);
1480 extern errcode_t ext2fs_new_dir_inline_data(ext2_filsys fs, ext2_ino_t dir_ino,
1481 ext2_ino_t parent_ino, __u32 *iblock);
1484 extern errcode_t ext2fs_mkdir(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t inum,
1488 extern errcode_t ext2fs_zero_blocks(ext2_filsys fs, blk_t blk, int num,
1489 blk_t *ret_blk, int *ret_count);
1490 extern errcode_t ext2fs_zero_blocks2(ext2_filsys fs, blk64_t blk, int num,
1491 blk64_t *ret_blk, int *ret_count);
1492 extern errcode_t ext2fs_create_journal_superblock(ext2_filsys fs,
1493 __u32 num_blocks, int flags,
1495 extern errcode_t ext2fs_add_journal_device(ext2_filsys fs,
1496 ext2_filsys journal_dev);
1497 extern errcode_t ext2fs_add_journal_inode(ext2_filsys fs, blk_t num_blocks,
1499 extern errcode_t ext2fs_add_journal_inode2(ext2_filsys fs, blk_t num_blocks,
1500 blk64_t goal, int flags);
1501 extern int ext2fs_default_journal_size(__u64 num_blocks);
1502 extern int ext2fs_journal_sb_start(int blocksize);
1505 extern errcode_t ext2fs_open(const char *name, int flags, int superblock,
1506 unsigned int block_size, io_manager manager,
1507 ext2_filsys *ret_fs);
1508 extern errcode_t ext2fs_open2(const char *name, const char *io_options,
1509 int flags, int superblock,
1510 unsigned int block_size, io_manager manager,
1511 ext2_filsys *ret_fs);
1513 * The dgrp_t argument to these two functions is not actually a group number
1514 * but a block number offset within a group table! Convert with the formula
1515 * (group_number / groups_per_block).
1517 extern blk64_t ext2fs_descriptor_block_loc2(ext2_filsys fs,
1518 blk64_t group_block, dgrp_t i);
1519 extern blk_t ext2fs_descriptor_block_loc(ext2_filsys fs, blk_t group_block,
1521 errcode_t ext2fs_get_data_io(ext2_filsys fs, io_channel *old_io);
1522 errcode_t ext2fs_set_data_io(ext2_filsys fs, io_channel new_io);
1523 errcode_t ext2fs_rewrite_to_io(ext2_filsys fs, io_channel new_io);
1525 /* get_pathname.c */
1526 extern errcode_t ext2fs_get_pathname(ext2_filsys fs, ext2_ino_t dir, ext2_ino_t ino,
1530 errcode_t ext2fs_link(ext2_filsys fs, ext2_ino_t dir, const char *name,
1531 ext2_ino_t ino, int flags);
1532 errcode_t ext2fs_unlink(ext2_filsys fs, ext2_ino_t dir, const char *name,
1533 ext2_ino_t ino, int flags);
1536 errcode_t ext2fs_symlink(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t ino,
1537 const char *name, char *target);
1540 errcode_t ext2fs_mmp_read(ext2_filsys fs, blk64_t mmp_blk, void *buf);
1541 errcode_t ext2fs_mmp_write(ext2_filsys fs, blk64_t mmp_blk, void *buf);
1542 errcode_t ext2fs_mmp_clear(ext2_filsys fs);
1543 errcode_t ext2fs_mmp_init(ext2_filsys fs);
1544 errcode_t ext2fs_mmp_start(ext2_filsys fs);
1545 errcode_t ext2fs_mmp_update(ext2_filsys fs);
1546 errcode_t ext2fs_mmp_update2(ext2_filsys fs, int immediately);
1547 errcode_t ext2fs_mmp_stop(ext2_filsys fs);
1548 unsigned ext2fs_mmp_new_seq(void);
1551 extern errcode_t ext2fs_read_bb_inode(ext2_filsys fs,
1552 ext2_badblocks_list *bb_list);
1554 /* read_bb_file.c */
1555 extern errcode_t ext2fs_read_bb_FILE2(ext2_filsys fs, FILE *f,
1556 ext2_badblocks_list *bb_list,
1558 void (*invalid)(ext2_filsys fs,
1562 extern errcode_t ext2fs_read_bb_FILE(ext2_filsys fs, FILE *f,
1563 ext2_badblocks_list *bb_list,
1564 void (*invalid)(ext2_filsys fs,
1568 extern errcode_t ext2fs_create_resize_inode(ext2_filsys fs);
1572 #define EXT2FS_SHA256_LENGTH 32
1573 extern void ext2fs_sha256(const unsigned char *in, unsigned long in_size,
1574 unsigned char out[EXT2FS_SHA256_LENGTH]);
1578 #define EXT2FS_SHA512_LENGTH 64
1579 extern void ext2fs_sha512(const unsigned char *in, unsigned long in_size,
1580 unsigned char out[EXT2FS_SHA512_LENGTH]);
1583 extern errcode_t ext2fs_dirent_swab_in2(ext2_filsys fs, char *buf, size_t size,
1585 extern errcode_t ext2fs_dirent_swab_in(ext2_filsys fs, char *buf, int flags);
1586 extern errcode_t ext2fs_dirent_swab_out2(ext2_filsys fs, char *buf, size_t size,
1588 extern errcode_t ext2fs_dirent_swab_out(ext2_filsys fs, char *buf, int flags);
1589 extern void ext2fs_swap_ext_attr(char *to, char *from, int bufsize,
1591 extern void ext2fs_swap_ext_attr_header(struct ext2_ext_attr_header *to_header,
1592 struct ext2_ext_attr_header *from_hdr);
1593 extern void ext2fs_swap_ext_attr_entry(struct ext2_ext_attr_entry *to_entry,
1594 struct ext2_ext_attr_entry *from_entry);
1595 extern void ext2fs_swap_super(struct ext2_super_block * super);
1596 extern void ext2fs_swap_group_desc(struct ext2_group_desc *gdp);
1597 extern void ext2fs_swap_group_desc2(ext2_filsys, struct ext2_group_desc *gdp);
1598 extern void ext2fs_swap_inode_full(ext2_filsys fs, struct ext2_inode_large *t,
1599 struct ext2_inode_large *f, int hostorder,
1601 extern void ext2fs_swap_inode(ext2_filsys fs,struct ext2_inode *t,
1602 struct ext2_inode *f, int hostorder);
1603 extern void ext2fs_swap_mmp(struct mmp_struct *mmp);
1606 extern int ext2fs_open_file(const char *pathname, int flags, mode_t mode);
1607 extern int ext2fs_stat(const char *path, ext2fs_struct_stat *buf);
1608 extern int ext2fs_fstat(int fd, ext2fs_struct_stat *buf);
1611 extern int ext2fs_inode_has_valid_blocks(struct ext2_inode *inode);
1612 extern int ext2fs_inode_has_valid_blocks2(ext2_filsys fs,
1613 struct ext2_inode *inode);
1616 extern int ext2fs_parse_version_string(const char *ver_string);
1617 extern int ext2fs_get_library_version(const char **ver_string,
1618 const char **date_string);
1620 /* write_bb_file.c */
1621 extern errcode_t ext2fs_write_bb_FILE(ext2_badblocks_list bb_list,
1626 /* inline functions */
1627 #ifdef NO_INLINE_FUNCS
1628 extern void ext2fs_init_csum_seed(ext2_filsys fs);
1629 extern errcode_t ext2fs_get_mem(unsigned long size, void *ptr);
1630 extern errcode_t ext2fs_get_memzero(unsigned long size, void *ptr);
1631 extern errcode_t ext2fs_get_array(unsigned long count,
1632 unsigned long size, void *ptr);
1633 extern errcode_t ext2fs_get_arrayzero(unsigned long count,
1634 unsigned long size, void *ptr);
1635 extern errcode_t ext2fs_free_mem(void *ptr);
1636 extern errcode_t ext2fs_resize_mem(unsigned long old_size,
1637 unsigned long size, void *ptr);
1638 extern void ext2fs_mark_super_dirty(ext2_filsys fs);
1639 extern void ext2fs_mark_changed(ext2_filsys fs);
1640 extern int ext2fs_test_changed(ext2_filsys fs);
1641 extern void ext2fs_mark_valid(ext2_filsys fs);
1642 extern void ext2fs_unmark_valid(ext2_filsys fs);
1643 extern int ext2fs_test_valid(ext2_filsys fs);
1644 extern void ext2fs_mark_ib_dirty(ext2_filsys fs);
1645 extern void ext2fs_mark_bb_dirty(ext2_filsys fs);
1646 extern int ext2fs_test_ib_dirty(ext2_filsys fs);
1647 extern int ext2fs_test_bb_dirty(ext2_filsys fs);
1648 extern dgrp_t ext2fs_group_of_blk(ext2_filsys fs, blk_t blk);
1649 extern dgrp_t ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino);
1650 extern blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group);
1651 extern blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group);
1652 extern blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
1653 struct ext2_inode *inode);
1654 extern unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b);
1655 extern __u64 ext2fs_div64_ceil(__u64 a, __u64 b);
1656 extern int ext2fs_dirent_name_len(const struct ext2_dir_entry *entry);
1657 extern void ext2fs_dirent_set_name_len(struct ext2_dir_entry *entry, int len);
1658 extern int ext2fs_dirent_file_type(const struct ext2_dir_entry *entry);
1659 extern void ext2fs_dirent_set_file_type(struct ext2_dir_entry *entry, int type);
1664 * The actual inlined functions definitions themselves...
1666 * If NO_INLINE_FUNCS is defined, then we won't try to do inline
1669 #if (defined(INCLUDE_INLINE_FUNCS) || !defined(NO_INLINE_FUNCS))
1670 #ifdef INCLUDE_INLINE_FUNCS
1671 #define _INLINE_ extern
1673 #if (__STDC_VERSION__ >= 199901L)
1674 #define _INLINE_ inline
1677 #define _INLINE_ extern __inline__
1678 #else /* For Watcom C */
1679 #define _INLINE_ extern inline
1680 #endif /* __GNUC__ */
1681 #endif /* __STDC_VERSION__ >= 199901L */
1684 _INLINE_ void ext2fs_init_csum_seed(ext2_filsys fs)
1686 if (!EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
1687 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
1690 fs->csum_seed = ext2fs_crc32c_le(~0, fs->super->s_uuid,
1691 sizeof(fs->super->s_uuid));
1694 #ifndef EXT2_CUSTOM_MEMORY_ROUTINES
1697 * Allocate memory. The 'ptr' arg must point to a pointer.
1699 _INLINE_ errcode_t ext2fs_get_mem(unsigned long size, void *ptr)
1705 return EXT2_ET_NO_MEMORY;
1706 memcpy(ptr, &pp, sizeof (pp));
1710 _INLINE_ errcode_t ext2fs_get_memzero(unsigned long size, void *ptr)
1716 return EXT2_ET_NO_MEMORY;
1717 memset(pp, 0, size);
1718 memcpy(ptr, &pp, sizeof(pp));
1722 _INLINE_ errcode_t ext2fs_get_array(unsigned long count, unsigned long size, void *ptr)
1724 if (count && (~0UL)/count < size)
1725 return EXT2_ET_NO_MEMORY;
1726 return ext2fs_get_mem(count*size, ptr);
1729 _INLINE_ errcode_t ext2fs_get_arrayzero(unsigned long count,
1730 unsigned long size, void *ptr)
1734 if (count && (~0UL)/count < size)
1735 return EXT2_ET_NO_MEMORY;
1736 pp = calloc(count, size);
1738 return EXT2_ET_NO_MEMORY;
1739 memcpy(ptr, &pp, sizeof(pp));
1744 * Free memory. The 'ptr' arg must point to a pointer.
1746 _INLINE_ errcode_t ext2fs_free_mem(void *ptr)
1750 memcpy(&p, ptr, sizeof(p));
1753 memcpy(ptr, &p, sizeof(p));
1758 * Resize memory. The 'ptr' arg must point to a pointer.
1760 _INLINE_ errcode_t ext2fs_resize_mem(unsigned long EXT2FS_ATTR((unused)) old_size,
1761 unsigned long size, void *ptr)
1765 /* Use "memcpy" for pointer assignments here to avoid problems
1766 * with C99 strict type aliasing rules. */
1767 memcpy(&p, ptr, sizeof(p));
1768 p = realloc(p, size);
1770 return EXT2_ET_NO_MEMORY;
1771 memcpy(ptr, &p, sizeof(p));
1774 #endif /* Custom memory routines */
1777 * Mark a filesystem superblock as dirty
1779 _INLINE_ void ext2fs_mark_super_dirty(ext2_filsys fs)
1781 fs->flags |= EXT2_FLAG_DIRTY | EXT2_FLAG_CHANGED;
1785 * Mark a filesystem as changed
1787 _INLINE_ void ext2fs_mark_changed(ext2_filsys fs)
1789 fs->flags |= EXT2_FLAG_CHANGED;
1793 * Check to see if a filesystem has changed
1795 _INLINE_ int ext2fs_test_changed(ext2_filsys fs)
1797 return (fs->flags & EXT2_FLAG_CHANGED);
1801 * Mark a filesystem as valid
1803 _INLINE_ void ext2fs_mark_valid(ext2_filsys fs)
1805 fs->flags |= EXT2_FLAG_VALID;
1809 * Mark a filesystem as NOT valid
1811 _INLINE_ void ext2fs_unmark_valid(ext2_filsys fs)
1813 fs->flags &= ~EXT2_FLAG_VALID;
1817 * Check to see if a filesystem is valid
1819 _INLINE_ int ext2fs_test_valid(ext2_filsys fs)
1821 return (fs->flags & EXT2_FLAG_VALID);
1825 * Mark the inode bitmap as dirty
1827 _INLINE_ void ext2fs_mark_ib_dirty(ext2_filsys fs)
1829 fs->flags |= EXT2_FLAG_IB_DIRTY | EXT2_FLAG_CHANGED;
1833 * Mark the block bitmap as dirty
1835 _INLINE_ void ext2fs_mark_bb_dirty(ext2_filsys fs)
1837 fs->flags |= EXT2_FLAG_BB_DIRTY | EXT2_FLAG_CHANGED;
1841 * Check to see if a filesystem's inode bitmap is dirty
1843 _INLINE_ int ext2fs_test_ib_dirty(ext2_filsys fs)
1845 return (fs->flags & EXT2_FLAG_IB_DIRTY);
1849 * Check to see if a filesystem's block bitmap is dirty
1851 _INLINE_ int ext2fs_test_bb_dirty(ext2_filsys fs)
1853 return (fs->flags & EXT2_FLAG_BB_DIRTY);
1857 * Return the group # of a block
1859 _INLINE_ dgrp_t ext2fs_group_of_blk(ext2_filsys fs, blk_t blk)
1861 return ext2fs_group_of_blk2(fs, blk);
1864 * Return the group # of an inode number
1866 _INLINE_ dgrp_t ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino)
1868 return (ino - 1) / fs->super->s_inodes_per_group;
1872 * Return the first block (inclusive) in a group
1874 _INLINE_ blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group)
1876 return (blk_t) ext2fs_group_first_block2(fs, group);
1880 * Return the last block (inclusive) in a group
1882 _INLINE_ blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group)
1884 return (blk_t) ext2fs_group_last_block2(fs, group);
1887 _INLINE_ blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
1888 struct ext2_inode *inode)
1890 return (blk_t) ext2fs_inode_data_blocks2(fs, inode);
1894 * This is an efficient, overflow safe way of calculating ceil((1.0 * a) / b)
1896 _INLINE_ unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b)
1900 return ((a - 1) / b) + 1;
1903 _INLINE_ __u64 ext2fs_div64_ceil(__u64 a, __u64 b)
1907 return ((a - 1) / b) + 1;
1910 _INLINE_ int ext2fs_dirent_name_len(const struct ext2_dir_entry *entry)
1912 return entry->name_len & 0xff;
1915 _INLINE_ void ext2fs_dirent_set_name_len(struct ext2_dir_entry *entry, int len)
1917 entry->name_len = (entry->name_len & 0xff00) | (len & 0xff);
1920 _INLINE_ int ext2fs_dirent_file_type(const struct ext2_dir_entry *entry)
1922 return entry->name_len >> 8;
1925 _INLINE_ void ext2fs_dirent_set_file_type(struct ext2_dir_entry *entry, int type)
1927 entry->name_len = (entry->name_len & 0xff) | (type << 8);
1937 #endif /* _EXT2FS_EXT2FS_H */