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)
551 * For ext2 compression support
553 #define EXT2FS_COMPRESSED_BLKADDR ((blk_t) -1)
554 #define HOLE_BLKADDR(_b) ((_b) == 0 || (_b) == EXT2FS_COMPRESSED_BLKADDR)
557 * Features supported by this version of the library
559 #define EXT2_LIB_FEATURE_COMPAT_SUPP (EXT2_FEATURE_COMPAT_DIR_PREALLOC|\
560 EXT2_FEATURE_COMPAT_IMAGIC_INODES|\
561 EXT3_FEATURE_COMPAT_HAS_JOURNAL|\
562 EXT2_FEATURE_COMPAT_RESIZE_INODE|\
563 EXT2_FEATURE_COMPAT_DIR_INDEX|\
564 EXT2_FEATURE_COMPAT_EXT_ATTR|\
565 EXT4_FEATURE_COMPAT_SPARSE_SUPER2)
567 /* This #ifdef is temporary until compression is fully supported */
568 #ifdef ENABLE_COMPRESSION
569 #ifndef I_KNOW_THAT_COMPRESSION_IS_EXPERIMENTAL
570 /* If the below warning bugs you, then have
571 `CPPFLAGS=-DI_KNOW_THAT_COMPRESSION_IS_EXPERIMENTAL' in your
572 environment at configure time. */
573 #warning "Compression support is experimental"
575 #define EXT2_LIB_INCOMPAT_COMPRESSION EXT2_FEATURE_INCOMPAT_COMPRESSION
577 #define EXT2_LIB_INCOMPAT_COMPRESSION (0)
581 #define EXT4_LIB_INCOMPAT_MMP EXT4_FEATURE_INCOMPAT_MMP
583 #define EXT4_LIB_INCOMPAT_MMP (0)
587 #define EXT4_LIB_RO_COMPAT_QUOTA EXT4_FEATURE_RO_COMPAT_QUOTA
589 #define EXT4_LIB_RO_COMPAT_QUOTA (0)
592 #define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\
593 EXT2_LIB_INCOMPAT_COMPRESSION|\
594 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\
595 EXT2_FEATURE_INCOMPAT_META_BG|\
596 EXT3_FEATURE_INCOMPAT_RECOVER|\
597 EXT3_FEATURE_INCOMPAT_EXTENTS|\
598 EXT4_FEATURE_INCOMPAT_FLEX_BG|\
599 EXT4_LIB_INCOMPAT_MMP|\
600 EXT4_FEATURE_INCOMPAT_64BIT|\
601 EXT4_FEATURE_INCOMPAT_INLINE_DATA|\
602 EXT4_FEATURE_INCOMPAT_ENCRYPT)
604 #define EXT2_LIB_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|\
605 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|\
606 EXT2_FEATURE_RO_COMPAT_LARGE_FILE|\
607 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|\
608 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|\
609 EXT4_FEATURE_RO_COMPAT_GDT_CSUM|\
610 EXT4_FEATURE_RO_COMPAT_BIGALLOC|\
611 EXT4_LIB_RO_COMPAT_QUOTA|\
612 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM|\
613 EXT4_FEATURE_RO_COMPAT_READONLY)
616 * These features are only allowed if EXT2_FLAG_SOFTSUPP_FEATURES is passed
619 #define EXT2_LIB_SOFTSUPP_INCOMPAT (0)
620 #define EXT2_LIB_SOFTSUPP_RO_COMPAT (EXT4_FEATURE_RO_COMPAT_REPLICA)
623 /* Translate a block number to a cluster number */
624 #define EXT2FS_CLUSTER_RATIO(fs) (1 << (fs)->cluster_ratio_bits)
625 #define EXT2FS_CLUSTER_MASK(fs) (EXT2FS_CLUSTER_RATIO(fs) - 1)
626 #define EXT2FS_B2C(fs, blk) ((blk) >> (fs)->cluster_ratio_bits)
627 /* Translate a cluster number to a block number */
628 #define EXT2FS_C2B(fs, cluster) ((cluster) << (fs)->cluster_ratio_bits)
629 /* Translate # of blks to # of clusters */
630 #define EXT2FS_NUM_B2C(fs, blks) (((blks) + EXT2FS_CLUSTER_MASK(fs)) >> \
631 (fs)->cluster_ratio_bits)
633 #if defined(HAVE_FSTAT64) && !defined(__OSX_AVAILABLE_BUT_DEPRECATED)
634 typedef struct stat64 ext2fs_struct_stat;
636 typedef struct stat ext2fs_struct_stat;
640 * For ext2fs_close2() and ext2fs_flush2(), this flag allows you to
641 * avoid the fsync call.
643 #define EXT2_FLAG_FLUSH_NO_SYNC 1
646 * Modify and iterate extended attributes
648 struct ext2_xattr_handle;
649 #define XATTR_ABORT 1
650 #define XATTR_CHANGED 2
653 * function prototypes
655 static inline int ext2fs_has_group_desc_csum(ext2_filsys fs)
657 return EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
658 EXT4_FEATURE_RO_COMPAT_GDT_CSUM |
659 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM);
662 /* The LARGE_FILE feature should be set if we have stored files 2GB+ in size */
663 static inline int ext2fs_needs_large_file_feature(unsigned long long file_size)
665 return file_size >= 0x80000000ULL;
669 extern errcode_t ext2fs_new_inode(ext2_filsys fs, ext2_ino_t dir, int mode,
670 ext2fs_inode_bitmap map, ext2_ino_t *ret);
671 extern errcode_t ext2fs_new_block(ext2_filsys fs, blk_t goal,
672 ext2fs_block_bitmap map, blk_t *ret);
673 extern errcode_t ext2fs_new_block2(ext2_filsys fs, blk64_t goal,
674 ext2fs_block_bitmap map, blk64_t *ret);
675 extern errcode_t ext2fs_get_free_blocks(ext2_filsys fs, blk_t start,
676 blk_t finish, int num,
677 ext2fs_block_bitmap map,
679 extern errcode_t ext2fs_get_free_blocks2(ext2_filsys fs, blk64_t start,
680 blk64_t finish, int num,
681 ext2fs_block_bitmap map,
683 extern errcode_t ext2fs_alloc_block(ext2_filsys fs, blk_t goal,
684 char *block_buf, blk_t *ret);
685 extern errcode_t ext2fs_alloc_block2(ext2_filsys fs, blk64_t goal,
686 char *block_buf, blk64_t *ret);
687 extern void ext2fs_set_alloc_block_callback(ext2_filsys fs,
688 errcode_t (*func)(ext2_filsys fs,
691 errcode_t (**old)(ext2_filsys fs,
694 blk64_t ext2fs_find_inode_goal(ext2_filsys fs, ext2_ino_t ino,
695 struct ext2_inode *inode, blk64_t lblk);
698 extern int ext2fs_reserve_super_and_bgd(ext2_filsys fs,
700 ext2fs_block_bitmap bmap);
701 extern void ext2fs_set_block_alloc_stats_callback(ext2_filsys fs,
702 void (*func)(ext2_filsys fs,
705 void (**old)(ext2_filsys fs,
710 void ext2fs_inode_alloc_stats(ext2_filsys fs, ext2_ino_t ino, int inuse);
711 void ext2fs_inode_alloc_stats2(ext2_filsys fs, ext2_ino_t ino,
712 int inuse, int isdir);
713 void ext2fs_block_alloc_stats(ext2_filsys fs, blk_t blk, int inuse);
714 void ext2fs_block_alloc_stats2(ext2_filsys fs, blk64_t blk, int inuse);
715 void ext2fs_block_alloc_stats_range(ext2_filsys fs, blk64_t blk,
716 blk_t num, int inuse);
719 extern errcode_t ext2fs_allocate_tables(ext2_filsys fs);
720 extern errcode_t ext2fs_allocate_group_table(ext2_filsys fs, dgrp_t group,
721 ext2fs_block_bitmap bmap);
724 extern errcode_t ext2fs_u32_list_create(ext2_u32_list *ret, int size);
725 extern errcode_t ext2fs_u32_list_add(ext2_u32_list bb, __u32 blk);
726 extern int ext2fs_u32_list_find(ext2_u32_list bb, __u32 blk);
727 extern int ext2fs_u32_list_test(ext2_u32_list bb, blk_t blk);
728 extern errcode_t ext2fs_u32_list_iterate_begin(ext2_u32_list bb,
729 ext2_u32_iterate *ret);
730 extern int ext2fs_u32_list_iterate(ext2_u32_iterate iter, blk_t *blk);
731 extern void ext2fs_u32_list_iterate_end(ext2_u32_iterate iter);
732 extern errcode_t ext2fs_u32_copy(ext2_u32_list src, ext2_u32_list *dest);
733 extern int ext2fs_u32_list_equal(ext2_u32_list bb1, ext2_u32_list bb2);
735 extern errcode_t ext2fs_badblocks_list_create(ext2_badblocks_list *ret,
737 extern errcode_t ext2fs_badblocks_list_add(ext2_badblocks_list bb,
739 extern int ext2fs_badblocks_list_test(ext2_badblocks_list bb,
741 extern int ext2fs_u32_list_del(ext2_u32_list bb, __u32 blk);
742 extern void ext2fs_badblocks_list_del(ext2_u32_list bb, __u32 blk);
744 ext2fs_badblocks_list_iterate_begin(ext2_badblocks_list bb,
745 ext2_badblocks_iterate *ret);
746 extern int ext2fs_badblocks_list_iterate(ext2_badblocks_iterate iter,
748 extern void ext2fs_badblocks_list_iterate_end(ext2_badblocks_iterate iter);
749 extern errcode_t ext2fs_badblocks_copy(ext2_badblocks_list src,
750 ext2_badblocks_list *dest);
751 extern int ext2fs_badblocks_equal(ext2_badblocks_list bb1,
752 ext2_badblocks_list bb2);
753 extern int ext2fs_u32_list_count(ext2_u32_list bb);
756 extern errcode_t badblocks_list_create(badblocks_list *ret, int size);
757 extern errcode_t badblocks_list_add(badblocks_list bb, blk_t blk);
758 extern int badblocks_list_test(badblocks_list bb, blk_t blk);
759 extern errcode_t badblocks_list_iterate_begin(badblocks_list bb,
760 badblocks_iterate *ret);
761 extern int badblocks_list_iterate(badblocks_iterate iter, blk_t *blk);
762 extern void badblocks_list_iterate_end(badblocks_iterate iter);
763 extern void badblocks_list_free(badblocks_list bb);
766 extern errcode_t ext2fs_update_bb_inode(ext2_filsys fs,
767 ext2_badblocks_list bb_list);
770 extern void ext2fs_free_block_bitmap(ext2fs_block_bitmap bitmap);
771 extern void ext2fs_free_inode_bitmap(ext2fs_inode_bitmap bitmap);
772 extern errcode_t ext2fs_copy_bitmap(ext2fs_generic_bitmap src,
773 ext2fs_generic_bitmap *dest);
774 extern errcode_t ext2fs_write_inode_bitmap(ext2_filsys fs);
775 extern errcode_t ext2fs_write_block_bitmap (ext2_filsys fs);
776 extern errcode_t ext2fs_read_inode_bitmap (ext2_filsys fs);
777 extern errcode_t ext2fs_read_block_bitmap(ext2_filsys fs);
778 extern errcode_t ext2fs_allocate_block_bitmap(ext2_filsys fs,
780 ext2fs_block_bitmap *ret);
781 extern errcode_t ext2fs_allocate_subcluster_bitmap(ext2_filsys fs,
783 ext2fs_block_bitmap *ret);
784 extern int ext2fs_get_bitmap_granularity(ext2fs_block_bitmap bitmap);
785 extern errcode_t ext2fs_allocate_inode_bitmap(ext2_filsys fs,
787 ext2fs_inode_bitmap *ret);
788 extern errcode_t ext2fs_fudge_inode_bitmap_end(ext2fs_inode_bitmap bitmap,
789 ext2_ino_t end, ext2_ino_t *oend);
790 extern errcode_t ext2fs_fudge_block_bitmap_end(ext2fs_block_bitmap bitmap,
791 blk_t end, blk_t *oend);
792 extern errcode_t ext2fs_fudge_block_bitmap_end2(ext2fs_block_bitmap bitmap,
793 blk64_t end, blk64_t *oend);
794 extern void ext2fs_clear_inode_bitmap(ext2fs_inode_bitmap bitmap);
795 extern void ext2fs_clear_block_bitmap(ext2fs_block_bitmap bitmap);
796 extern errcode_t ext2fs_read_bitmaps(ext2_filsys fs);
797 extern errcode_t ext2fs_write_bitmaps(ext2_filsys fs);
798 extern errcode_t ext2fs_resize_inode_bitmap(__u32 new_end, __u32 new_real_end,
799 ext2fs_inode_bitmap bmap);
800 extern errcode_t ext2fs_resize_inode_bitmap2(__u64 new_end,
802 ext2fs_inode_bitmap bmap);
803 extern errcode_t ext2fs_resize_block_bitmap(__u32 new_end, __u32 new_real_end,
804 ext2fs_block_bitmap bmap);
805 extern errcode_t ext2fs_resize_block_bitmap2(__u64 new_end,
807 ext2fs_block_bitmap bmap);
808 extern errcode_t ext2fs_compare_block_bitmap(ext2fs_block_bitmap bm1,
809 ext2fs_block_bitmap bm2);
810 extern errcode_t ext2fs_compare_inode_bitmap(ext2fs_inode_bitmap bm1,
811 ext2fs_inode_bitmap bm2);
812 extern errcode_t ext2fs_set_inode_bitmap_range(ext2fs_inode_bitmap bmap,
813 ext2_ino_t start, unsigned int num,
815 extern errcode_t ext2fs_set_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
816 __u64 start, size_t num,
818 extern errcode_t ext2fs_get_inode_bitmap_range(ext2fs_inode_bitmap bmap,
819 ext2_ino_t start, unsigned int num,
821 extern errcode_t ext2fs_get_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
822 __u64 start, size_t num,
824 extern errcode_t ext2fs_set_block_bitmap_range(ext2fs_block_bitmap bmap,
825 blk_t start, unsigned int num,
827 extern errcode_t ext2fs_set_block_bitmap_range2(ext2fs_block_bitmap bmap,
828 blk64_t start, size_t num,
830 extern errcode_t ext2fs_get_block_bitmap_range(ext2fs_block_bitmap bmap,
831 blk_t start, unsigned int num,
833 extern errcode_t ext2fs_get_block_bitmap_range2(ext2fs_block_bitmap bmap,
834 blk64_t start, size_t num,
838 extern __u32 ext2fs_inode_bitmap_checksum(ext2_filsys fs, dgrp_t group);
839 extern __u32 ext2fs_block_bitmap_checksum(ext2_filsys fs, dgrp_t group);
840 extern dgrp_t ext2fs_group_of_blk2(ext2_filsys fs, blk64_t);
841 extern blk64_t ext2fs_group_first_block2(ext2_filsys fs, dgrp_t group);
842 extern blk64_t ext2fs_group_last_block2(ext2_filsys fs, dgrp_t group);
843 extern int ext2fs_group_blocks_count(ext2_filsys fs, dgrp_t group);
844 extern blk64_t ext2fs_inode_data_blocks2(ext2_filsys fs,
845 struct ext2_inode *inode);
846 extern blk64_t ext2fs_inode_i_blocks(ext2_filsys fs,
847 struct ext2_inode *inode);
848 extern blk64_t ext2fs_blocks_count(struct ext2_super_block *super);
849 extern void ext2fs_blocks_count_set(struct ext2_super_block *super,
851 extern void ext2fs_blocks_count_add(struct ext2_super_block *super,
853 extern blk64_t ext2fs_r_blocks_count(struct ext2_super_block *super);
854 extern void ext2fs_r_blocks_count_set(struct ext2_super_block *super,
856 extern void ext2fs_r_blocks_count_add(struct ext2_super_block *super,
858 extern blk64_t ext2fs_free_blocks_count(struct ext2_super_block *super);
859 extern void ext2fs_free_blocks_count_set(struct ext2_super_block *super,
861 extern void ext2fs_free_blocks_count_add(struct ext2_super_block *super,
863 /* Block group descriptor accessor functions */
864 extern struct ext2_group_desc *ext2fs_group_desc(ext2_filsys fs,
865 struct opaque_ext2_group_desc *gdp,
867 extern blk64_t ext2fs_block_bitmap_csum(ext2_filsys fs, dgrp_t group);
868 extern blk64_t ext2fs_block_bitmap_loc(ext2_filsys fs, dgrp_t group);
869 extern void ext2fs_block_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
871 extern __u32 ext2fs_inode_bitmap_csum(ext2_filsys fs, dgrp_t group);
872 extern blk64_t ext2fs_inode_bitmap_loc(ext2_filsys fs, dgrp_t group);
873 extern void ext2fs_inode_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
875 extern blk64_t ext2fs_inode_table_loc(ext2_filsys fs, dgrp_t group);
876 extern void ext2fs_inode_table_loc_set(ext2_filsys fs, dgrp_t group,
878 extern __u32 ext2fs_bg_free_blocks_count(ext2_filsys fs, dgrp_t group);
879 extern void ext2fs_bg_free_blocks_count_set(ext2_filsys fs, dgrp_t group,
881 extern __u32 ext2fs_bg_free_inodes_count(ext2_filsys fs, dgrp_t group);
882 extern void ext2fs_bg_free_inodes_count_set(ext2_filsys fs, dgrp_t group,
884 extern __u32 ext2fs_bg_used_dirs_count(ext2_filsys fs, dgrp_t group);
885 extern void ext2fs_bg_used_dirs_count_set(ext2_filsys fs, dgrp_t group,
887 extern __u32 ext2fs_bg_itable_unused(ext2_filsys fs, dgrp_t group);
888 extern void ext2fs_bg_itable_unused_set(ext2_filsys fs, dgrp_t group,
890 extern __u16 ext2fs_bg_flags(ext2_filsys fs, dgrp_t group);
891 extern void ext2fs_bg_flags_zap(ext2_filsys fs, dgrp_t group);
892 extern int ext2fs_bg_flags_test(ext2_filsys fs, dgrp_t group, __u16 bg_flag);
893 extern void ext2fs_bg_flags_set(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
894 extern void ext2fs_bg_flags_clear(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
895 extern __u16 ext2fs_bg_checksum(ext2_filsys fs, dgrp_t group);
896 extern void ext2fs_bg_checksum_set(ext2_filsys fs, dgrp_t group, __u16 checksum);
897 extern blk64_t ext2fs_file_acl_block(ext2_filsys fs,
898 const struct ext2_inode *inode);
899 extern void ext2fs_file_acl_block_set(ext2_filsys fs,
900 struct ext2_inode *inode, blk64_t blk);
901 extern errcode_t ext2fs_inode_size_set(ext2_filsys fs, struct ext2_inode *inode,
905 extern errcode_t ext2fs_block_iterate(ext2_filsys fs,
909 int (*func)(ext2_filsys fs,
914 errcode_t ext2fs_block_iterate2(ext2_filsys fs,
918 int (*func)(ext2_filsys fs,
920 e2_blkcnt_t blockcnt,
925 errcode_t ext2fs_block_iterate3(ext2_filsys fs,
929 int (*func)(ext2_filsys fs,
931 e2_blkcnt_t blockcnt,
938 extern errcode_t ext2fs_bmap(ext2_filsys fs, ext2_ino_t ino,
939 struct ext2_inode *inode,
940 char *block_buf, int bmap_flags,
941 blk_t block, blk_t *phys_blk);
942 extern errcode_t ext2fs_bmap2(ext2_filsys fs, ext2_ino_t ino,
943 struct ext2_inode *inode,
944 char *block_buf, int bmap_flags, blk64_t block,
945 int *ret_flags, blk64_t *phys_blk);
946 errcode_t ext2fs_map_cluster_block(ext2_filsys fs, ext2_ino_t ino,
947 struct ext2_inode *inode, blk64_t lblk,
952 extern errcode_t ext2fs_move_blocks(ext2_filsys fs,
953 ext2fs_block_bitmap reserve,
954 ext2fs_block_bitmap alloc_map,
959 extern errcode_t ext2fs_check_desc(ext2_filsys fs);
962 extern errcode_t ext2fs_close(ext2_filsys fs);
963 extern errcode_t ext2fs_close2(ext2_filsys fs, int flags);
964 extern errcode_t ext2fs_close_free(ext2_filsys *fs);
965 extern errcode_t ext2fs_flush(ext2_filsys fs);
966 extern errcode_t ext2fs_flush2(ext2_filsys fs, int flags);
967 extern int ext2fs_bg_has_super(ext2_filsys fs, dgrp_t group_block);
968 extern errcode_t ext2fs_super_and_bgd_loc2(ext2_filsys fs,
970 blk64_t *ret_super_blk,
971 blk64_t *ret_old_desc_blk,
972 blk64_t *ret_new_desc_blk,
973 blk_t *ret_used_blks);
974 extern int ext2fs_super_and_bgd_loc(ext2_filsys fs,
976 blk_t *ret_super_blk,
977 blk_t *ret_old_desc_blk,
978 blk_t *ret_new_desc_blk,
980 extern void ext2fs_update_dynamic_rev(ext2_filsys fs);
983 extern __u32 ext2fs_crc32_be(__u32 crc, unsigned char const *p, size_t len);
984 extern __u32 ext2fs_crc32c_le(__u32 crc, unsigned char const *p, size_t len);
987 extern errcode_t ext2fs_mmp_csum_set(ext2_filsys fs, struct mmp_struct *mmp);
988 extern int ext2fs_mmp_csum_verify(ext2_filsys, struct mmp_struct *mmp);
989 extern int ext2fs_verify_csum_type(ext2_filsys fs, struct ext2_super_block *sb);
990 extern errcode_t ext2fs_superblock_csum_set(ext2_filsys fs,
991 struct ext2_super_block *sb);
992 extern int ext2fs_superblock_csum_verify(ext2_filsys fs,
993 struct ext2_super_block *sb);
994 extern errcode_t ext2fs_ext_attr_block_csum_set(ext2_filsys fs,
995 ext2_ino_t inum, blk64_t block,
996 struct ext2_ext_attr_header *hdr);
997 extern int ext2fs_ext_attr_block_csum_verify(ext2_filsys fs, ext2_ino_t inum,
999 struct ext2_ext_attr_header *hdr);
1000 #define EXT2_DIRENT_TAIL(block, blocksize) \
1001 ((struct ext2_dir_entry_tail *)(((char *)(block)) + \
1002 (blocksize) - sizeof(struct ext2_dir_entry_tail)))
1004 extern void ext2fs_initialize_dirent_tail(ext2_filsys fs,
1005 struct ext2_dir_entry_tail *t);
1006 extern int ext2fs_dirent_has_tail(ext2_filsys fs,
1007 struct ext2_dir_entry *dirent);
1008 extern int ext2fs_dirent_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1009 struct ext2_dir_entry *dirent);
1010 extern int ext2fs_dir_block_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1011 struct ext2_dir_entry *dirent);
1012 extern errcode_t ext2fs_dir_block_csum_set(ext2_filsys fs, ext2_ino_t inum,
1013 struct ext2_dir_entry *dirent);
1014 extern errcode_t ext2fs_get_dx_countlimit(ext2_filsys fs,
1015 struct ext2_dir_entry *dirent,
1016 struct ext2_dx_countlimit **cc,
1018 extern errcode_t ext2fs_extent_block_csum_set(ext2_filsys fs,
1020 struct ext3_extent_header *eh);
1021 extern int ext2fs_extent_block_csum_verify(ext2_filsys fs,
1023 struct ext3_extent_header *eh);
1024 extern errcode_t ext2fs_block_bitmap_csum_set(ext2_filsys fs, dgrp_t group,
1025 char *bitmap, int size);
1026 extern int ext2fs_block_bitmap_csum_verify(ext2_filsys fs, dgrp_t group,
1027 char *bitmap, int size);
1028 extern errcode_t ext2fs_inode_bitmap_csum_set(ext2_filsys fs, dgrp_t group,
1029 char *bitmap, int size);
1030 extern int ext2fs_inode_bitmap_csum_verify(ext2_filsys fs, dgrp_t group,
1031 char *bitmap, int size);
1032 extern errcode_t ext2fs_inode_csum_set(ext2_filsys fs, ext2_ino_t inum,
1033 struct ext2_inode_large *inode);
1034 extern int ext2fs_inode_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1035 struct ext2_inode_large *inode);
1036 extern void ext2fs_group_desc_csum_set(ext2_filsys fs, dgrp_t group);
1037 extern int ext2fs_group_desc_csum_verify(ext2_filsys fs, dgrp_t group);
1038 extern errcode_t ext2fs_set_gdt_csum(ext2_filsys fs);
1039 extern __u16 ext2fs_group_desc_csum(ext2_filsys fs, dgrp_t group);
1042 extern errcode_t ext2fs_init_dblist(ext2_filsys fs, ext2_dblist *ret_dblist);
1043 extern errcode_t ext2fs_add_dir_block(ext2_dblist dblist, ext2_ino_t ino,
1044 blk_t blk, int blockcnt);
1045 extern errcode_t ext2fs_add_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
1046 blk64_t blk, e2_blkcnt_t blockcnt);
1047 extern void ext2fs_dblist_sort(ext2_dblist dblist,
1048 EXT2_QSORT_TYPE (*sortfunc)(const void *,
1050 extern void ext2fs_dblist_sort2(ext2_dblist dblist,
1051 EXT2_QSORT_TYPE (*sortfunc)(const void *,
1053 extern errcode_t ext2fs_dblist_iterate(ext2_dblist dblist,
1054 int (*func)(ext2_filsys fs, struct ext2_db_entry *db_info,
1057 extern errcode_t ext2fs_dblist_iterate2(ext2_dblist dblist,
1058 int (*func)(ext2_filsys fs, struct ext2_db_entry2 *db_info,
1061 extern errcode_t ext2fs_set_dir_block(ext2_dblist dblist, ext2_ino_t ino,
1062 blk_t blk, int blockcnt);
1063 extern errcode_t ext2fs_set_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
1064 blk64_t blk, e2_blkcnt_t blockcnt);
1065 extern errcode_t ext2fs_copy_dblist(ext2_dblist src,
1067 extern int ext2fs_dblist_count(ext2_dblist dblist);
1068 extern blk64_t ext2fs_dblist_count2(ext2_dblist dblist);
1069 extern errcode_t ext2fs_dblist_get_last(ext2_dblist dblist,
1070 struct ext2_db_entry **entry);
1071 extern errcode_t ext2fs_dblist_get_last2(ext2_dblist dblist,
1072 struct ext2_db_entry2 **entry);
1073 extern errcode_t ext2fs_dblist_drop_last(ext2_dblist dblist);
1077 ext2fs_dblist_dir_iterate(ext2_dblist dblist,
1080 int (*func)(ext2_ino_t dir,
1082 struct ext2_dir_entry *dirent,
1089 /* digest_encode.c */
1090 #define EXT2FS_DIGEST_SIZE EXT2FS_SHA256_LENGTH
1091 extern int ext2fs_digest_encode(const char *src, unsigned long len, char *dst);
1094 extern errcode_t ext2fs_read_dir_block(ext2_filsys fs, blk_t block,
1096 extern errcode_t ext2fs_read_dir_block2(ext2_filsys fs, blk_t block,
1097 void *buf, int flags);
1098 extern errcode_t ext2fs_read_dir_block3(ext2_filsys fs, blk64_t block,
1099 void *buf, int flags);
1100 extern errcode_t ext2fs_read_dir_block4(ext2_filsys fs, blk64_t block,
1101 void *buf, int flags, ext2_ino_t ino);
1102 extern errcode_t ext2fs_write_dir_block(ext2_filsys fs, blk_t block,
1104 extern errcode_t ext2fs_write_dir_block2(ext2_filsys fs, blk_t block,
1105 void *buf, int flags);
1106 extern errcode_t ext2fs_write_dir_block3(ext2_filsys fs, blk64_t block,
1107 void *buf, int flags);
1108 extern errcode_t ext2fs_write_dir_block4(ext2_filsys fs, blk64_t block,
1109 void *buf, int flags, ext2_ino_t ino);
1112 extern errcode_t ext2fs_dirhash(int version, const char *name, int len,
1114 ext2_dirhash_t *ret_hash,
1115 ext2_dirhash_t *ret_minor_hash);
1119 extern errcode_t ext2fs_get_rec_len(ext2_filsys fs,
1120 struct ext2_dir_entry *dirent,
1121 unsigned int *rec_len);
1122 extern errcode_t ext2fs_set_rec_len(ext2_filsys fs,
1124 struct ext2_dir_entry *dirent);
1125 extern errcode_t ext2fs_dir_iterate(ext2_filsys fs,
1129 int (*func)(struct ext2_dir_entry *dirent,
1135 extern errcode_t ext2fs_dir_iterate2(ext2_filsys fs,
1139 int (*func)(ext2_ino_t dir,
1141 struct ext2_dir_entry *dirent,
1149 extern errcode_t ext2fs_dup_handle(ext2_filsys src, ext2_filsys *dest);
1152 extern errcode_t ext2fs_expand_dir(ext2_filsys fs, ext2_ino_t dir);
1155 extern __u32 ext2fs_ext_attr_hash_entry(struct ext2_ext_attr_entry *entry,
1157 extern errcode_t ext2fs_read_ext_attr(ext2_filsys fs, blk_t block, void *buf);
1158 extern errcode_t ext2fs_read_ext_attr2(ext2_filsys fs, blk64_t block,
1160 extern errcode_t ext2fs_read_ext_attr3(ext2_filsys fs, blk64_t block,
1161 void *buf, ext2_ino_t inum);
1162 extern errcode_t ext2fs_write_ext_attr(ext2_filsys fs, blk_t block,
1164 extern errcode_t ext2fs_write_ext_attr2(ext2_filsys fs, blk64_t block,
1166 extern errcode_t ext2fs_write_ext_attr3(ext2_filsys fs, blk64_t block,
1167 void *buf, ext2_ino_t inum);
1168 extern errcode_t ext2fs_adjust_ea_refcount(ext2_filsys fs, blk_t blk,
1170 int adjust, __u32 *newcount);
1171 extern errcode_t ext2fs_adjust_ea_refcount2(ext2_filsys fs, blk64_t blk,
1173 int adjust, __u32 *newcount);
1174 extern errcode_t ext2fs_adjust_ea_refcount3(ext2_filsys fs, blk64_t blk,
1176 int adjust, __u32 *newcount,
1178 errcode_t ext2fs_xattrs_write(struct ext2_xattr_handle *handle);
1179 errcode_t ext2fs_xattrs_read(struct ext2_xattr_handle *handle);
1180 errcode_t ext2fs_xattrs_iterate(struct ext2_xattr_handle *h,
1181 int (*func)(char *name, char *value,
1182 size_t value_len, void *data),
1184 errcode_t ext2fs_xattr_get(struct ext2_xattr_handle *h, const char *key,
1185 void **value, size_t *value_len);
1186 errcode_t ext2fs_xattr_set(struct ext2_xattr_handle *handle,
1190 errcode_t ext2fs_xattr_remove(struct ext2_xattr_handle *handle,
1192 errcode_t ext2fs_xattrs_open(ext2_filsys fs, ext2_ino_t ino,
1193 struct ext2_xattr_handle **handle);
1194 errcode_t ext2fs_xattrs_close(struct ext2_xattr_handle **handle);
1195 errcode_t ext2fs_free_ext_attr(ext2_filsys fs, ext2_ino_t ino,
1196 struct ext2_inode_large *inode);
1197 errcode_t ext2fs_xattrs_count(struct ext2_xattr_handle *handle, size_t *count);
1198 errcode_t ext2fs_xattr_inode_max_size(ext2_filsys fs, ext2_ino_t ino,
1202 extern errcode_t ext2fs_extent_header_verify(void *ptr, int size);
1203 extern errcode_t ext2fs_extent_open(ext2_filsys fs, ext2_ino_t ino,
1204 ext2_extent_handle_t *handle);
1205 extern errcode_t ext2fs_extent_open2(ext2_filsys fs, ext2_ino_t ino,
1206 struct ext2_inode *inode,
1207 ext2_extent_handle_t *ret_handle);
1208 extern void ext2fs_extent_free(ext2_extent_handle_t handle);
1209 extern errcode_t ext2fs_extent_get(ext2_extent_handle_t handle,
1210 int flags, struct ext2fs_extent *extent);
1211 extern errcode_t ext2fs_extent_node_split(ext2_extent_handle_t handle);
1212 extern errcode_t ext2fs_extent_replace(ext2_extent_handle_t handle, int flags,
1213 struct ext2fs_extent *extent);
1214 extern errcode_t ext2fs_extent_insert(ext2_extent_handle_t handle, int flags,
1215 struct ext2fs_extent *extent);
1216 extern errcode_t ext2fs_extent_set_bmap(ext2_extent_handle_t handle,
1217 blk64_t logical, blk64_t physical,
1219 extern errcode_t ext2fs_extent_delete(ext2_extent_handle_t handle, int flags);
1220 extern errcode_t ext2fs_extent_get_info(ext2_extent_handle_t handle,
1221 struct ext2_extent_info *info);
1222 extern errcode_t ext2fs_extent_goto(ext2_extent_handle_t handle,
1224 extern errcode_t ext2fs_extent_goto2(ext2_extent_handle_t handle,
1225 int leaf_level, blk64_t blk);
1226 extern errcode_t ext2fs_extent_fix_parents(ext2_extent_handle_t handle);
1227 size_t ext2fs_max_extent_depth(ext2_extent_handle_t handle);
1230 extern errcode_t ext2fs_file_open2(ext2_filsys fs, ext2_ino_t ino,
1231 struct ext2_inode *inode,
1232 int flags, ext2_file_t *ret);
1233 extern errcode_t ext2fs_file_open(ext2_filsys fs, ext2_ino_t ino,
1234 int flags, ext2_file_t *ret);
1235 extern ext2_filsys ext2fs_file_get_fs(ext2_file_t file);
1236 struct ext2_inode *ext2fs_file_get_inode(ext2_file_t file);
1237 extern ext2_ino_t ext2fs_file_get_inode_num(ext2_file_t file);
1238 extern errcode_t ext2fs_file_close(ext2_file_t file);
1239 extern errcode_t ext2fs_file_flush(ext2_file_t file);
1240 extern errcode_t ext2fs_file_read(ext2_file_t file, void *buf,
1241 unsigned int wanted, unsigned int *got);
1242 extern errcode_t ext2fs_file_write(ext2_file_t file, const void *buf,
1243 unsigned int nbytes, unsigned int *written);
1244 extern errcode_t ext2fs_file_llseek(ext2_file_t file, __u64 offset,
1245 int whence, __u64 *ret_pos);
1246 extern errcode_t ext2fs_file_lseek(ext2_file_t file, ext2_off_t offset,
1247 int whence, ext2_off_t *ret_pos);
1248 errcode_t ext2fs_file_get_lsize(ext2_file_t file, __u64 *ret_size);
1249 extern ext2_off_t ext2fs_file_get_size(ext2_file_t file);
1250 extern errcode_t ext2fs_file_set_size(ext2_file_t file, ext2_off_t size);
1251 extern errcode_t ext2fs_file_set_size2(ext2_file_t file, ext2_off64_t size);
1254 extern char *ext2fs_find_block_device(dev_t device);
1257 extern errcode_t ext2fs_sync_device(int fd, int flushb);
1260 extern void ext2fs_free(ext2_filsys fs);
1261 extern void ext2fs_free_dblist(ext2_dblist dblist);
1262 extern void ext2fs_badblocks_list_free(ext2_badblocks_list bb);
1263 extern void ext2fs_u32_list_free(ext2_u32_list bb);
1266 extern void ext2fs_free_generic_bitmap(ext2fs_inode_bitmap bitmap);
1267 extern errcode_t ext2fs_make_generic_bitmap(errcode_t magic, ext2_filsys fs,
1268 __u32 start, __u32 end,
1270 const char *descr, char *init_map,
1271 ext2fs_generic_bitmap *ret);
1272 extern errcode_t ext2fs_allocate_generic_bitmap(__u32 start,
1276 ext2fs_generic_bitmap *ret);
1277 extern errcode_t ext2fs_copy_generic_bitmap(ext2fs_generic_bitmap src,
1278 ext2fs_generic_bitmap *dest);
1279 extern void ext2fs_clear_generic_bitmap(ext2fs_generic_bitmap bitmap);
1280 extern errcode_t ext2fs_fudge_generic_bitmap_end(ext2fs_inode_bitmap bitmap,
1285 extern void ext2fs_set_generic_bitmap_padding(ext2fs_generic_bitmap map);
1286 extern errcode_t ext2fs_resize_generic_bitmap(errcode_t magic,
1289 ext2fs_generic_bitmap bmap);
1290 extern errcode_t ext2fs_compare_generic_bitmap(errcode_t magic, errcode_t neq,
1291 ext2fs_generic_bitmap bm1,
1292 ext2fs_generic_bitmap bm2);
1293 extern errcode_t ext2fs_get_generic_bitmap_range(ext2fs_generic_bitmap bmap,
1295 __u32 start, __u32 num,
1297 extern errcode_t ext2fs_set_generic_bitmap_range(ext2fs_generic_bitmap bmap,
1299 __u32 start, __u32 num,
1301 extern errcode_t ext2fs_find_first_zero_generic_bitmap(ext2fs_generic_bitmap bitmap,
1302 __u32 start, __u32 end,
1304 extern errcode_t ext2fs_find_first_set_generic_bitmap(ext2fs_generic_bitmap bitmap,
1305 __u32 start, __u32 end,
1308 /* gen_bitmap64.c */
1309 void ext2fs_free_generic_bmap(ext2fs_generic_bitmap bmap);
1310 errcode_t ext2fs_alloc_generic_bmap(ext2_filsys fs, errcode_t magic,
1311 int type, __u64 start, __u64 end,
1314 ext2fs_generic_bitmap *ret);
1315 errcode_t ext2fs_copy_generic_bmap(ext2fs_generic_bitmap src,
1316 ext2fs_generic_bitmap *dest);
1317 void ext2fs_clear_generic_bmap(ext2fs_generic_bitmap bitmap);
1318 errcode_t ext2fs_fudge_generic_bmap_end(ext2fs_generic_bitmap bitmap,
1320 __u64 end, __u64 *oend);
1321 void ext2fs_set_generic_bmap_padding(ext2fs_generic_bitmap bmap);
1322 errcode_t ext2fs_resize_generic_bmap(ext2fs_generic_bitmap bmap,
1324 __u64 new_real_end);
1325 errcode_t ext2fs_compare_generic_bmap(errcode_t neq,
1326 ext2fs_generic_bitmap bm1,
1327 ext2fs_generic_bitmap bm2);
1328 errcode_t ext2fs_get_generic_bmap_range(ext2fs_generic_bitmap bmap,
1329 __u64 start, unsigned int num,
1331 errcode_t ext2fs_set_generic_bmap_range(ext2fs_generic_bitmap bmap,
1332 __u64 start, unsigned int num,
1334 errcode_t ext2fs_convert_subcluster_bitmap(ext2_filsys fs,
1335 ext2fs_block_bitmap *bitmap);
1337 /* get_num_dirs.c */
1338 extern errcode_t ext2fs_get_num_dirs(ext2_filsys fs, ext2_ino_t *ret_num_dirs);
1341 extern errcode_t ext2fs_get_device_size(const char *file, int blocksize,
1343 extern errcode_t ext2fs_get_device_size2(const char *file, int blocksize,
1344 blk64_t *retblocks);
1347 extern int ext2fs_get_dio_alignment(int fd);
1348 errcode_t ext2fs_get_device_sectsize(const char *file, int *sectsize);
1349 errcode_t ext2fs_get_device_phys_sectsize(const char *file, int *sectsize);
1352 errcode_t ext2fs_iblk_add_blocks(ext2_filsys fs, struct ext2_inode *inode,
1353 blk64_t num_blocks);
1354 errcode_t ext2fs_iblk_sub_blocks(ext2_filsys fs, struct ext2_inode *inode,
1355 blk64_t num_blocks);
1356 errcode_t ext2fs_iblk_set(ext2_filsys fs, struct ext2_inode *inode, blk64_t b);
1359 extern errcode_t ext2fs_image_inode_write(ext2_filsys fs, int fd, int flags);
1360 extern errcode_t ext2fs_image_inode_read(ext2_filsys fs, int fd, int flags);
1361 extern errcode_t ext2fs_image_super_write(ext2_filsys fs, int fd, int flags);
1362 extern errcode_t ext2fs_image_super_read(ext2_filsys fs, int fd, int flags);
1363 extern errcode_t ext2fs_image_bitmap_write(ext2_filsys fs, int fd, int flags);
1364 extern errcode_t ext2fs_image_bitmap_read(ext2_filsys fs, int fd, int flags);
1367 errcode_t ext2fs_read_ind_block(ext2_filsys fs, blk_t blk, void *buf);
1368 errcode_t ext2fs_write_ind_block(ext2_filsys fs, blk_t blk, void *buf);
1371 extern errcode_t ext2fs_initialize(const char *name, int flags,
1372 struct ext2_super_block *param,
1373 io_manager manager, ext2_filsys *ret_fs);
1376 extern void ext2fs_free_icount(ext2_icount_t icount);
1377 extern errcode_t ext2fs_create_icount_tdb(ext2_filsys fs, char *tdb_dir,
1378 int flags, ext2_icount_t *ret);
1379 extern errcode_t ext2fs_create_icount2(ext2_filsys fs, int flags,
1381 ext2_icount_t hint, ext2_icount_t *ret);
1382 extern errcode_t ext2fs_create_icount(ext2_filsys fs, int flags,
1384 ext2_icount_t *ret);
1385 extern errcode_t ext2fs_icount_fetch(ext2_icount_t icount, ext2_ino_t ino,
1387 extern errcode_t ext2fs_icount_increment(ext2_icount_t icount, ext2_ino_t ino,
1389 extern errcode_t ext2fs_icount_decrement(ext2_icount_t icount, ext2_ino_t ino,
1391 extern errcode_t ext2fs_icount_store(ext2_icount_t icount, ext2_ino_t ino,
1393 extern ext2_ino_t ext2fs_get_icount_size(ext2_icount_t icount);
1394 errcode_t ext2fs_icount_validate(ext2_icount_t icount, FILE *);
1398 extern errcode_t ext2fs_get_memalign(unsigned long size,
1399 unsigned long align, void *ptr);
1402 extern errcode_t ext2fs_inline_data_init(ext2_filsys fs, ext2_ino_t ino);
1403 extern errcode_t ext2fs_inline_data_size(ext2_filsys fs, ext2_ino_t ino,
1405 extern errcode_t ext2fs_inline_data_get(ext2_filsys fs, ext2_ino_t ino,
1406 struct ext2_inode *inode,
1407 void *buf, size_t *size);
1408 extern errcode_t ext2fs_inline_data_set(ext2_filsys fs, ext2_ino_t ino,
1409 struct ext2_inode *inode,
1410 void *buf, size_t size);
1413 extern errcode_t ext2fs_create_inode_cache(ext2_filsys fs,
1414 unsigned int cache_size);
1415 extern void ext2fs_free_inode_cache(struct ext2_inode_cache *icache);
1416 extern errcode_t ext2fs_flush_icache(ext2_filsys fs);
1417 extern errcode_t ext2fs_get_next_inode_full(ext2_inode_scan scan,
1419 struct ext2_inode *inode,
1421 extern errcode_t ext2fs_open_inode_scan(ext2_filsys fs, int buffer_blocks,
1422 ext2_inode_scan *ret_scan);
1423 extern void ext2fs_close_inode_scan(ext2_inode_scan scan);
1424 extern errcode_t ext2fs_get_next_inode(ext2_inode_scan scan, ext2_ino_t *ino,
1425 struct ext2_inode *inode);
1426 extern errcode_t ext2fs_inode_scan_goto_blockgroup(ext2_inode_scan scan,
1428 extern void ext2fs_set_inode_callback
1429 (ext2_inode_scan scan,
1430 errcode_t (*done_group)(ext2_filsys fs,
1431 ext2_inode_scan scan,
1434 void *done_group_data);
1435 extern int ext2fs_inode_scan_flags(ext2_inode_scan scan, int set_flags,
1437 extern errcode_t ext2fs_read_inode_full(ext2_filsys fs, ext2_ino_t ino,
1438 struct ext2_inode * inode,
1440 extern errcode_t ext2fs_read_inode (ext2_filsys fs, ext2_ino_t ino,
1441 struct ext2_inode * inode);
1442 extern errcode_t ext2fs_write_inode_full(ext2_filsys fs, ext2_ino_t ino,
1443 struct ext2_inode * inode,
1445 extern errcode_t ext2fs_write_inode(ext2_filsys fs, ext2_ino_t ino,
1446 struct ext2_inode * inode);
1447 extern errcode_t ext2fs_write_new_inode(ext2_filsys fs, ext2_ino_t ino,
1448 struct ext2_inode * inode);
1449 extern errcode_t ext2fs_get_blocks(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
1450 extern errcode_t ext2fs_check_directory(ext2_filsys fs, ext2_ino_t ino);
1453 extern io_manager inode_io_manager;
1454 extern errcode_t ext2fs_inode_io_intern(ext2_filsys fs, ext2_ino_t ino,
1456 extern errcode_t ext2fs_inode_io_intern2(ext2_filsys fs, ext2_ino_t ino,
1457 struct ext2_inode *inode,
1461 extern errcode_t ext2fs_check_if_mounted(const char *file, int *mount_flags);
1462 extern errcode_t ext2fs_check_mount_point(const char *device, int *mount_flags,
1463 char *mtpt, int mtlen);
1467 * NOTE: This function removes from an inode the blocks "start", "end", and
1468 * every block in between.
1470 extern errcode_t ext2fs_punch(ext2_filsys fs, ext2_ino_t ino,
1471 struct ext2_inode *inode,
1472 char *block_buf, blk64_t start,
1476 extern errcode_t ext2fs_lookup(ext2_filsys fs, ext2_ino_t dir, const char *name,
1477 int namelen, char *buf, ext2_ino_t *inode);
1478 extern errcode_t ext2fs_namei(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1479 const char *name, ext2_ino_t *inode);
1480 errcode_t ext2fs_namei_follow(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1481 const char *name, ext2_ino_t *inode);
1482 extern errcode_t ext2fs_follow_link(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1483 ext2_ino_t inode, ext2_ino_t *res_inode);
1486 int ext2fs_native_flag(void);
1489 extern errcode_t ext2fs_new_dir_block(ext2_filsys fs, ext2_ino_t dir_ino,
1490 ext2_ino_t parent_ino, char **block);
1491 extern errcode_t ext2fs_new_dir_inline_data(ext2_filsys fs, ext2_ino_t dir_ino,
1492 ext2_ino_t parent_ino, __u32 *iblock);
1495 extern errcode_t ext2fs_mkdir(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t inum,
1499 extern errcode_t ext2fs_zero_blocks(ext2_filsys fs, blk_t blk, int num,
1500 blk_t *ret_blk, int *ret_count);
1501 extern errcode_t ext2fs_zero_blocks2(ext2_filsys fs, blk64_t blk, int num,
1502 blk64_t *ret_blk, int *ret_count);
1503 extern errcode_t ext2fs_create_journal_superblock(ext2_filsys fs,
1504 __u32 num_blocks, int flags,
1506 extern errcode_t ext2fs_add_journal_device(ext2_filsys fs,
1507 ext2_filsys journal_dev);
1508 extern errcode_t ext2fs_add_journal_inode(ext2_filsys fs, blk_t num_blocks,
1510 extern errcode_t ext2fs_add_journal_inode2(ext2_filsys fs, blk_t num_blocks,
1511 blk64_t goal, int flags);
1512 extern int ext2fs_default_journal_size(__u64 num_blocks);
1513 extern int ext2fs_journal_sb_start(int blocksize);
1516 extern errcode_t ext2fs_open(const char *name, int flags, int superblock,
1517 unsigned int block_size, io_manager manager,
1518 ext2_filsys *ret_fs);
1519 extern errcode_t ext2fs_open2(const char *name, const char *io_options,
1520 int flags, int superblock,
1521 unsigned int block_size, io_manager manager,
1522 ext2_filsys *ret_fs);
1524 * The dgrp_t argument to these two functions is not actually a group number
1525 * but a block number offset within a group table! Convert with the formula
1526 * (group_number / groups_per_block).
1528 extern blk64_t ext2fs_descriptor_block_loc2(ext2_filsys fs,
1529 blk64_t group_block, dgrp_t i);
1530 extern blk_t ext2fs_descriptor_block_loc(ext2_filsys fs, blk_t group_block,
1532 errcode_t ext2fs_get_data_io(ext2_filsys fs, io_channel *old_io);
1533 errcode_t ext2fs_set_data_io(ext2_filsys fs, io_channel new_io);
1534 errcode_t ext2fs_rewrite_to_io(ext2_filsys fs, io_channel new_io);
1536 /* get_pathname.c */
1537 extern errcode_t ext2fs_get_pathname(ext2_filsys fs, ext2_ino_t dir, ext2_ino_t ino,
1541 errcode_t ext2fs_link(ext2_filsys fs, ext2_ino_t dir, const char *name,
1542 ext2_ino_t ino, int flags);
1543 errcode_t ext2fs_unlink(ext2_filsys fs, ext2_ino_t dir, const char *name,
1544 ext2_ino_t ino, int flags);
1547 errcode_t ext2fs_symlink(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t ino,
1548 const char *name, char *target);
1551 errcode_t ext2fs_mmp_read(ext2_filsys fs, blk64_t mmp_blk, void *buf);
1552 errcode_t ext2fs_mmp_write(ext2_filsys fs, blk64_t mmp_blk, void *buf);
1553 errcode_t ext2fs_mmp_clear(ext2_filsys fs);
1554 errcode_t ext2fs_mmp_init(ext2_filsys fs);
1555 errcode_t ext2fs_mmp_start(ext2_filsys fs);
1556 errcode_t ext2fs_mmp_update(ext2_filsys fs);
1557 errcode_t ext2fs_mmp_update2(ext2_filsys fs, int immediately);
1558 errcode_t ext2fs_mmp_stop(ext2_filsys fs);
1559 unsigned ext2fs_mmp_new_seq(void);
1562 extern errcode_t ext2fs_read_bb_inode(ext2_filsys fs,
1563 ext2_badblocks_list *bb_list);
1565 /* read_bb_file.c */
1566 extern errcode_t ext2fs_read_bb_FILE2(ext2_filsys fs, FILE *f,
1567 ext2_badblocks_list *bb_list,
1569 void (*invalid)(ext2_filsys fs,
1573 extern errcode_t ext2fs_read_bb_FILE(ext2_filsys fs, FILE *f,
1574 ext2_badblocks_list *bb_list,
1575 void (*invalid)(ext2_filsys fs,
1579 extern errcode_t ext2fs_create_resize_inode(ext2_filsys fs);
1582 #define EXT2FS_SHA256_LENGTH 32
1583 extern void ext2fs_sha256(const unsigned char *in, unsigned long in_size,
1584 unsigned char out[EXT2FS_SHA256_LENGTH]);
1587 #define EXT2FS_SHA512_LENGTH 64
1588 extern void ext2fs_sha512(const unsigned char *in, unsigned long in_size,
1589 unsigned char out[EXT2FS_SHA512_LENGTH]);
1592 extern errcode_t ext2fs_dirent_swab_in2(ext2_filsys fs, char *buf, size_t size,
1594 extern errcode_t ext2fs_dirent_swab_in(ext2_filsys fs, char *buf, int flags);
1595 extern errcode_t ext2fs_dirent_swab_out2(ext2_filsys fs, char *buf, size_t size,
1597 extern errcode_t ext2fs_dirent_swab_out(ext2_filsys fs, char *buf, int flags);
1598 extern void ext2fs_swap_ext_attr(char *to, char *from, int bufsize,
1600 extern void ext2fs_swap_ext_attr_header(struct ext2_ext_attr_header *to_header,
1601 struct ext2_ext_attr_header *from_hdr);
1602 extern void ext2fs_swap_ext_attr_entry(struct ext2_ext_attr_entry *to_entry,
1603 struct ext2_ext_attr_entry *from_entry);
1604 extern void ext2fs_swap_super(struct ext2_super_block * super);
1605 extern void ext2fs_swap_group_desc(struct ext2_group_desc *gdp);
1606 extern void ext2fs_swap_group_desc2(ext2_filsys, struct ext2_group_desc *gdp);
1607 extern void ext2fs_swap_inode_full(ext2_filsys fs, struct ext2_inode_large *t,
1608 struct ext2_inode_large *f, int hostorder,
1610 extern void ext2fs_swap_inode(ext2_filsys fs,struct ext2_inode *t,
1611 struct ext2_inode *f, int hostorder);
1612 extern void ext2fs_swap_mmp(struct mmp_struct *mmp);
1615 extern int ext2fs_open_file(const char *pathname, int flags, mode_t mode);
1616 extern int ext2fs_stat(const char *path, ext2fs_struct_stat *buf);
1617 extern int ext2fs_fstat(int fd, ext2fs_struct_stat *buf);
1620 extern int ext2fs_inode_has_valid_blocks(struct ext2_inode *inode);
1621 extern int ext2fs_inode_has_valid_blocks2(ext2_filsys fs,
1622 struct ext2_inode *inode);
1625 extern int ext2fs_parse_version_string(const char *ver_string);
1626 extern int ext2fs_get_library_version(const char **ver_string,
1627 const char **date_string);
1629 /* write_bb_file.c */
1630 extern errcode_t ext2fs_write_bb_FILE(ext2_badblocks_list bb_list,
1635 /* inline functions */
1636 #ifdef NO_INLINE_FUNCS
1637 extern void ext2fs_init_csum_seed(ext2_filsys fs);
1638 extern errcode_t ext2fs_get_mem(unsigned long size, void *ptr);
1639 extern errcode_t ext2fs_get_memzero(unsigned long size, void *ptr);
1640 extern errcode_t ext2fs_get_array(unsigned long count,
1641 unsigned long size, void *ptr);
1642 extern errcode_t ext2fs_get_arrayzero(unsigned long count,
1643 unsigned long size, void *ptr);
1644 extern errcode_t ext2fs_free_mem(void *ptr);
1645 extern errcode_t ext2fs_resize_mem(unsigned long old_size,
1646 unsigned long size, void *ptr);
1647 extern void ext2fs_mark_super_dirty(ext2_filsys fs);
1648 extern void ext2fs_mark_changed(ext2_filsys fs);
1649 extern int ext2fs_test_changed(ext2_filsys fs);
1650 extern void ext2fs_mark_valid(ext2_filsys fs);
1651 extern void ext2fs_unmark_valid(ext2_filsys fs);
1652 extern int ext2fs_test_valid(ext2_filsys fs);
1653 extern void ext2fs_mark_ib_dirty(ext2_filsys fs);
1654 extern void ext2fs_mark_bb_dirty(ext2_filsys fs);
1655 extern int ext2fs_test_ib_dirty(ext2_filsys fs);
1656 extern int ext2fs_test_bb_dirty(ext2_filsys fs);
1657 extern dgrp_t ext2fs_group_of_blk(ext2_filsys fs, blk_t blk);
1658 extern dgrp_t ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino);
1659 extern blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group);
1660 extern blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group);
1661 extern blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
1662 struct ext2_inode *inode);
1663 extern unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b);
1664 extern __u64 ext2fs_div64_ceil(__u64 a, __u64 b);
1665 extern int ext2fs_dirent_name_len(const struct ext2_dir_entry *entry);
1666 extern void ext2fs_dirent_set_name_len(struct ext2_dir_entry *entry, int len);
1667 extern int ext2fs_dirent_file_type(const struct ext2_dir_entry *entry);
1668 extern void ext2fs_dirent_set_file_type(struct ext2_dir_entry *entry, int type);
1673 * The actual inlined functions definitions themselves...
1675 * If NO_INLINE_FUNCS is defined, then we won't try to do inline
1678 #if (defined(INCLUDE_INLINE_FUNCS) || !defined(NO_INLINE_FUNCS))
1679 #ifdef INCLUDE_INLINE_FUNCS
1680 #define _INLINE_ extern
1682 #if (__STDC_VERSION__ >= 199901L)
1683 #define _INLINE_ inline
1686 #define _INLINE_ extern __inline__
1687 #else /* For Watcom C */
1688 #define _INLINE_ extern inline
1689 #endif /* __GNUC__ */
1690 #endif /* __STDC_VERSION__ >= 199901L */
1693 _INLINE_ void ext2fs_init_csum_seed(ext2_filsys fs)
1695 if (!EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
1696 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
1699 fs->csum_seed = ext2fs_crc32c_le(~0, fs->super->s_uuid,
1700 sizeof(fs->super->s_uuid));
1703 #ifndef EXT2_CUSTOM_MEMORY_ROUTINES
1706 * Allocate memory. The 'ptr' arg must point to a pointer.
1708 _INLINE_ errcode_t ext2fs_get_mem(unsigned long size, void *ptr)
1714 return EXT2_ET_NO_MEMORY;
1715 memcpy(ptr, &pp, sizeof (pp));
1719 _INLINE_ errcode_t ext2fs_get_memzero(unsigned long size, void *ptr)
1725 return EXT2_ET_NO_MEMORY;
1726 memset(pp, 0, size);
1727 memcpy(ptr, &pp, sizeof(pp));
1731 _INLINE_ errcode_t ext2fs_get_array(unsigned long count, unsigned long size, void *ptr)
1733 if (count && (~0UL)/count < size)
1734 return EXT2_ET_NO_MEMORY;
1735 return ext2fs_get_mem(count*size, ptr);
1738 _INLINE_ errcode_t ext2fs_get_arrayzero(unsigned long count,
1739 unsigned long size, void *ptr)
1743 if (count && (~0UL)/count < size)
1744 return EXT2_ET_NO_MEMORY;
1745 pp = calloc(count, size);
1747 return EXT2_ET_NO_MEMORY;
1748 memcpy(ptr, &pp, sizeof(pp));
1753 * Free memory. The 'ptr' arg must point to a pointer.
1755 _INLINE_ errcode_t ext2fs_free_mem(void *ptr)
1759 memcpy(&p, ptr, sizeof(p));
1762 memcpy(ptr, &p, sizeof(p));
1767 * Resize memory. The 'ptr' arg must point to a pointer.
1769 _INLINE_ errcode_t ext2fs_resize_mem(unsigned long EXT2FS_ATTR((unused)) old_size,
1770 unsigned long size, void *ptr)
1774 /* Use "memcpy" for pointer assignments here to avoid problems
1775 * with C99 strict type aliasing rules. */
1776 memcpy(&p, ptr, sizeof(p));
1777 p = realloc(p, size);
1779 return EXT2_ET_NO_MEMORY;
1780 memcpy(ptr, &p, sizeof(p));
1783 #endif /* Custom memory routines */
1786 * Mark a filesystem superblock as dirty
1788 _INLINE_ void ext2fs_mark_super_dirty(ext2_filsys fs)
1790 fs->flags |= EXT2_FLAG_DIRTY | EXT2_FLAG_CHANGED;
1794 * Mark a filesystem as changed
1796 _INLINE_ void ext2fs_mark_changed(ext2_filsys fs)
1798 fs->flags |= EXT2_FLAG_CHANGED;
1802 * Check to see if a filesystem has changed
1804 _INLINE_ int ext2fs_test_changed(ext2_filsys fs)
1806 return (fs->flags & EXT2_FLAG_CHANGED);
1810 * Mark a filesystem as valid
1812 _INLINE_ void ext2fs_mark_valid(ext2_filsys fs)
1814 fs->flags |= EXT2_FLAG_VALID;
1818 * Mark a filesystem as NOT valid
1820 _INLINE_ void ext2fs_unmark_valid(ext2_filsys fs)
1822 fs->flags &= ~EXT2_FLAG_VALID;
1826 * Check to see if a filesystem is valid
1828 _INLINE_ int ext2fs_test_valid(ext2_filsys fs)
1830 return (fs->flags & EXT2_FLAG_VALID);
1834 * Mark the inode bitmap as dirty
1836 _INLINE_ void ext2fs_mark_ib_dirty(ext2_filsys fs)
1838 fs->flags |= EXT2_FLAG_IB_DIRTY | EXT2_FLAG_CHANGED;
1842 * Mark the block bitmap as dirty
1844 _INLINE_ void ext2fs_mark_bb_dirty(ext2_filsys fs)
1846 fs->flags |= EXT2_FLAG_BB_DIRTY | EXT2_FLAG_CHANGED;
1850 * Check to see if a filesystem's inode bitmap is dirty
1852 _INLINE_ int ext2fs_test_ib_dirty(ext2_filsys fs)
1854 return (fs->flags & EXT2_FLAG_IB_DIRTY);
1858 * Check to see if a filesystem's block bitmap is dirty
1860 _INLINE_ int ext2fs_test_bb_dirty(ext2_filsys fs)
1862 return (fs->flags & EXT2_FLAG_BB_DIRTY);
1866 * Return the group # of a block
1868 _INLINE_ dgrp_t ext2fs_group_of_blk(ext2_filsys fs, blk_t blk)
1870 return ext2fs_group_of_blk2(fs, blk);
1873 * Return the group # of an inode number
1875 _INLINE_ dgrp_t ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino)
1877 return (ino - 1) / fs->super->s_inodes_per_group;
1881 * Return the first block (inclusive) in a group
1883 _INLINE_ blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group)
1885 return (blk_t) ext2fs_group_first_block2(fs, group);
1889 * Return the last block (inclusive) in a group
1891 _INLINE_ blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group)
1893 return (blk_t) ext2fs_group_last_block2(fs, group);
1896 _INLINE_ blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
1897 struct ext2_inode *inode)
1899 return (blk_t) ext2fs_inode_data_blocks2(fs, inode);
1903 * This is an efficient, overflow safe way of calculating ceil((1.0 * a) / b)
1905 _INLINE_ unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b)
1909 return ((a - 1) / b) + 1;
1912 _INLINE_ __u64 ext2fs_div64_ceil(__u64 a, __u64 b)
1916 return ((a - 1) / b) + 1;
1919 _INLINE_ int ext2fs_dirent_name_len(const struct ext2_dir_entry *entry)
1921 return entry->name_len & 0xff;
1924 _INLINE_ void ext2fs_dirent_set_name_len(struct ext2_dir_entry *entry, int len)
1926 entry->name_len = (entry->name_len & 0xff00) | (len & 0xff);
1929 _INLINE_ int ext2fs_dirent_file_type(const struct ext2_dir_entry *entry)
1931 return entry->name_len >> 8;
1934 _INLINE_ void ext2fs_dirent_set_file_type(struct ext2_dir_entry *entry, int type)
1936 entry->name_len = (entry->name_len & 0xff) | (type << 8);
1946 #endif /* _EXT2FS_EXT2FS_H */