4 * Copyright (C) 1993, 1994, 1995, 1996 Theodore Ts'o.
7 * This file may be redistributed under the terms of the GNU Library
8 * General Public License, version 2.
12 #ifndef _EXT2FS_EXT2FS_H
13 #define _EXT2FS_EXT2FS_H
16 #define EXT2FS_ATTR(x) __attribute__(x)
18 #define EXT2FS_ATTR(x)
22 #define EXT2FS_NO_TDB_UNUSED
24 #define EXT2FS_NO_TDB_UNUSED EXT2FS_ATTR((unused))
32 * Non-GNU C compilers won't necessarily understand inline
34 #if (!defined(__GNUC__) && !defined(__WATCOMC__))
35 #define NO_INLINE_FUNCS
39 * Where the master copy of the superblock is located, and how big
40 * superblocks are supposed to be. We define SUPERBLOCK_SIZE because
41 * the size of the superblock structure is not necessarily trustworthy
42 * (some versions have the padding set up so that the superblock is
45 #define SUPERBLOCK_OFFSET 1024
46 #define SUPERBLOCK_SIZE 1024
48 #define UUID_STR_SIZE 37
51 * The last ext2fs revision level that this version of the library is
54 #define EXT2_LIB_CURRENT_REV EXT2_DYNAMIC_REV
56 #ifdef HAVE_SYS_TYPES_H
57 #include <sys/types.h>
66 #if EXT2_FLAT_INCLUDES
69 #include "ext3_extents.h"
71 #include <ext2fs/ext2_types.h>
72 #include <ext2fs/ext2_fs.h>
73 #include <ext2fs/ext3_extents.h>
74 #endif /* EXT2_FLAT_INCLUDES */
76 typedef __u32 __bitwise ext2_ino_t;
77 typedef __u32 __bitwise blk_t;
78 typedef __u64 __bitwise blk64_t;
79 typedef __u32 __bitwise dgrp_t;
80 typedef __u32 __bitwise ext2_off_t;
81 typedef __u64 __bitwise ext2_off64_t;
82 typedef __s64 __bitwise e2_blkcnt_t;
83 typedef __u32 __bitwise ext2_dirhash_t;
85 #if EXT2_FLAT_INCLUDES
89 #include "ext2_ext_attr.h"
91 #include <et/com_err.h>
92 #include <ext2fs/ext2_io.h>
93 #include <ext2fs/ext2_err.h>
94 #include <ext2fs/ext2_ext_attr.h>
98 * Portability help for Microsoft Visual C++
101 #define EXT2_QSORT_TYPE int __cdecl
103 #define EXT2_QSORT_TYPE int
106 typedef struct struct_ext2_filsys *ext2_filsys;
108 #define EXT2FS_MARK_ERROR 0
109 #define EXT2FS_UNMARK_ERROR 1
110 #define EXT2FS_TEST_ERROR 2
112 typedef struct ext2fs_struct_generic_bitmap *ext2fs_generic_bitmap;
113 typedef struct ext2fs_struct_generic_bitmap *ext2fs_inode_bitmap;
114 typedef struct ext2fs_struct_generic_bitmap *ext2fs_block_bitmap;
116 #define EXT2_FIRST_INODE(s) EXT2_FIRST_INO(s)
120 * Badblocks list definitions
123 typedef struct ext2_struct_u32_list *ext2_badblocks_list;
124 typedef struct ext2_struct_u32_iterate *ext2_badblocks_iterate;
126 typedef struct ext2_struct_u32_list *ext2_u32_list;
127 typedef struct ext2_struct_u32_iterate *ext2_u32_iterate;
130 typedef struct ext2_struct_u32_list *badblocks_list;
131 typedef struct ext2_struct_u32_iterate *badblocks_iterate;
133 #define BADBLOCKS_FLAG_DIRTY 1
136 * ext2_dblist structure and abstractions (see dblist.c)
138 struct ext2_db_entry2 {
141 e2_blkcnt_t blockcnt;
144 /* Ye Olde 32-bit version */
145 struct ext2_db_entry {
151 typedef struct ext2_struct_dblist *ext2_dblist;
153 #define DBLIST_ABORT 1
156 * ext2_fileio definitions
159 #define EXT2_FILE_WRITE 0x0001
160 #define EXT2_FILE_CREATE 0x0002
162 #define EXT2_FILE_MASK 0x00FF
164 #define EXT2_FILE_BUF_DIRTY 0x4000
165 #define EXT2_FILE_BUF_VALID 0x2000
167 typedef struct ext2_file *ext2_file_t;
169 #define EXT2_SEEK_SET 0
170 #define EXT2_SEEK_CUR 1
171 #define EXT2_SEEK_END 2
174 * Flags for the ext2_filsys structure and for ext2fs_open()
176 #define EXT2_FLAG_RW 0x01
177 #define EXT2_FLAG_CHANGED 0x02
178 #define EXT2_FLAG_DIRTY 0x04
179 #define EXT2_FLAG_VALID 0x08
180 #define EXT2_FLAG_IB_DIRTY 0x10
181 #define EXT2_FLAG_BB_DIRTY 0x20
182 #define EXT2_FLAG_SWAP_BYTES 0x40
183 #define EXT2_FLAG_SWAP_BYTES_READ 0x80
184 #define EXT2_FLAG_SWAP_BYTES_WRITE 0x100
185 #define EXT2_FLAG_MASTER_SB_ONLY 0x200
186 #define EXT2_FLAG_FORCE 0x400
187 #define EXT2_FLAG_SUPER_ONLY 0x800
188 #define EXT2_FLAG_JOURNAL_DEV_OK 0x1000
189 #define EXT2_FLAG_IMAGE_FILE 0x2000
190 #define EXT2_FLAG_EXCLUSIVE 0x4000
191 #define EXT2_FLAG_SOFTSUPP_FEATURES 0x8000
192 #define EXT2_FLAG_NOFREE_ON_ERROR 0x10000
193 #define EXT2_FLAG_64BITS 0x20000
194 #define EXT2_FLAG_PRINT_PROGRESS 0x40000
195 #define EXT2_FLAG_DIRECT_IO 0x80000
196 #define EXT2_FLAG_SKIP_MMP 0x100000
197 #define EXT2_FLAG_IGNORE_CSUM_ERRORS 0x200000
200 * Special flag in the ext2 inode i_flag field that means that this is
201 * a new inode. (So that ext2_write_inode() can clear extra fields.)
203 #define EXT2_NEW_INODE_FL 0x80000000
206 * Flags for mkjournal
208 #define EXT2_MKJOURNAL_V1_SUPER 0x0000001 /* create V1 superblock (deprecated) */
209 #define EXT2_MKJOURNAL_LAZYINIT 0x0000002 /* don't zero journal inode before use*/
210 #define EXT2_MKJOURNAL_NO_MNT_CHECK 0x0000004 /* don't check mount status */
212 struct blk_alloc_ctx;
213 struct opaque_ext2_group_desc;
215 struct struct_ext2_filsys {
220 struct ext2_super_block * super;
221 unsigned int blocksize;
223 dgrp_t group_desc_count;
224 unsigned long desc_blocks;
225 struct opaque_ext2_group_desc * group_desc;
226 unsigned int inode_blocks_per_group;
227 ext2fs_inode_bitmap inode_map;
228 ext2fs_block_bitmap block_map;
229 /* XXX FIXME-64: not 64-bit safe, but not used? */
230 errcode_t (*get_blocks)(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
231 errcode_t (*check_directory)(ext2_filsys fs, ext2_ino_t ino);
232 errcode_t (*write_bitmaps)(ext2_filsys fs);
233 errcode_t (*read_inode)(ext2_filsys fs, ext2_ino_t ino,
234 struct ext2_inode *inode);
235 errcode_t (*write_inode)(ext2_filsys fs, ext2_ino_t ino,
236 struct ext2_inode *inode);
237 ext2_badblocks_list badblocks;
239 __u32 stride; /* for mke2fs */
240 struct ext2_super_block * orig_super;
241 struct ext2_image_hdr * image_header;
244 int cluster_ratio_bits;
245 __u16 default_bitmap_type;
248 * Reserved for future expansion
253 * Reserved for the use of the calling application.
260 struct ext2_inode_cache *icache;
264 * More callback functions
266 errcode_t (*get_alloc_block)(ext2_filsys fs, blk64_t goal,
268 errcode_t (*get_alloc_block2)(ext2_filsys fs, blk64_t goal,
269 blk64_t *ret, struct blk_alloc_ctx *ctx);
270 void (*block_alloc_stats)(ext2_filsys fs, blk64_t blk, int inuse);
273 * Buffers for Multiple mount protection(MMP) block.
280 * Time at which e2fsck last updated the MMP block.
282 long mmp_last_written;
284 /* progress operation functions */
285 struct ext2fs_progress_ops *progress_ops;
287 /* Precomputed FS UUID checksum for seeding other checksums */
290 io_channel journal_io;
293 /* New block range allocation hooks */
294 errcode_t (*new_range)(ext2_filsys fs, int flags, blk64_t goal,
295 blk64_t len, blk64_t *pblk, blk64_t *plen);
296 void (*block_alloc_stats_range)(ext2_filsys fs, blk64_t blk, blk_t num,
300 #if EXT2_FLAT_INCLUDES
301 #include "e2_bitops.h"
303 #include <ext2fs/bitops.h>
307 * 64-bit bitmap backend types
309 #define EXT2FS_BMAP64_BITARRAY 1
310 #define EXT2FS_BMAP64_RBTREE 2
311 #define EXT2FS_BMAP64_AUTODIR 3
314 * Return flags for the block iterator functions
316 #define BLOCK_CHANGED 1
317 #define BLOCK_ABORT 2
318 #define BLOCK_ERROR 4
319 #define BLOCK_INLINE_DATA_CHANGED 8
322 * Block interate flags
324 * BLOCK_FLAG_APPEND, or BLOCK_FLAG_HOLE, indicates that the interator
325 * function should be called on blocks where the block number is zero.
326 * This is used by ext2fs_expand_dir() to be able to add a new block
327 * to an inode. It can also be used for programs that want to be able
328 * to deal with files that contain "holes".
330 * BLOCK_FLAG_DEPTH_TRAVERSE indicates that the iterator function for
331 * the indirect, doubly indirect, etc. blocks should be called after
332 * all of the blocks containined in the indirect blocks are processed.
333 * This is useful if you are going to be deallocating blocks from an
336 * BLOCK_FLAG_DATA_ONLY indicates that the iterator function should be
337 * called for data blocks only.
339 * BLOCK_FLAG_READ_ONLY is a promise by the caller that it will not
340 * modify returned block number.
342 * BLOCK_FLAG_NO_LARGE is for internal use only. It informs
343 * ext2fs_block_iterate2 that large files won't be accepted.
345 #define BLOCK_FLAG_APPEND 1
346 #define BLOCK_FLAG_HOLE 1
347 #define BLOCK_FLAG_DEPTH_TRAVERSE 2
348 #define BLOCK_FLAG_DATA_ONLY 4
349 #define BLOCK_FLAG_READ_ONLY 8
351 #define BLOCK_FLAG_NO_LARGE 0x1000
354 * Magic "block count" return values for the block iterator function.
356 #define BLOCK_COUNT_IND (-1)
357 #define BLOCK_COUNT_DIND (-2)
358 #define BLOCK_COUNT_TIND (-3)
359 #define BLOCK_COUNT_TRANSLATOR (-4)
361 #define BLOCK_ALLOC_UNKNOWN 0
362 #define BLOCK_ALLOC_DATA 1
363 #define BLOCK_ALLOC_METADATA 2
365 struct blk_alloc_ctx {
367 struct ext2_inode *inode;
374 * Flags for ext2fs_move_blocks
376 #define EXT2_BMOVE_GET_DBLIST 0x0001
377 #define EXT2_BMOVE_DEBUG 0x0002
381 * Generic (non-filesystem layout specific) extents structure
384 #define EXT2_EXTENT_FLAGS_LEAF 0x0001
385 #define EXT2_EXTENT_FLAGS_UNINIT 0x0002
386 #define EXT2_EXTENT_FLAGS_SECOND_VISIT 0x0004
388 struct ext2fs_extent {
389 blk64_t e_pblk; /* first physical block */
390 blk64_t e_lblk; /* first logical block extent covers */
391 __u32 e_len; /* number of blocks covered by extent */
392 __u32 e_flags; /* extent flags */
395 typedef struct ext2_extent_handle *ext2_extent_handle_t;
396 typedef struct ext2_extent_path *ext2_extent_path_t;
399 * Flags used by ext2fs_extent_get()
401 #define EXT2_EXTENT_CURRENT 0x0000
402 #define EXT2_EXTENT_MOVE_MASK 0x000F
403 #define EXT2_EXTENT_ROOT 0x0001
404 #define EXT2_EXTENT_LAST_LEAF 0x0002
405 #define EXT2_EXTENT_FIRST_SIB 0x0003
406 #define EXT2_EXTENT_LAST_SIB 0x0004
407 #define EXT2_EXTENT_NEXT_SIB 0x0005
408 #define EXT2_EXTENT_PREV_SIB 0x0006
409 #define EXT2_EXTENT_NEXT_LEAF 0x0007
410 #define EXT2_EXTENT_PREV_LEAF 0x0008
411 #define EXT2_EXTENT_NEXT 0x0009
412 #define EXT2_EXTENT_PREV 0x000A
413 #define EXT2_EXTENT_UP 0x000B
414 #define EXT2_EXTENT_DOWN 0x000C
415 #define EXT2_EXTENT_DOWN_AND_LAST 0x000D
418 * Flags used by ext2fs_extent_insert()
420 #define EXT2_EXTENT_INSERT_AFTER 0x0001 /* insert after handle loc'n */
421 #define EXT2_EXTENT_INSERT_NOSPLIT 0x0002 /* insert may not cause split */
424 * Flags used by ext2fs_extent_delete()
426 #define EXT2_EXTENT_DELETE_KEEP_EMPTY 0x001 /* keep node if last extnt gone */
429 * Flags used by ext2fs_extent_set_bmap()
431 #define EXT2_EXTENT_SET_BMAP_UNINIT 0x0001
434 * Data structure returned by ext2fs_extent_get_info()
436 struct ext2_extent_info {
446 __u32 max_uninit_len;
450 * Flags for directory block reading and writing functions
452 #define EXT2_DIRBLOCK_V2_STRUCT 0x0001
455 * Return flags for the directory iterator functions
457 #define DIRENT_CHANGED 1
458 #define DIRENT_ABORT 2
459 #define DIRENT_ERROR 3
462 * Directory iterator flags
465 #define DIRENT_FLAG_INCLUDE_EMPTY 1
466 #define DIRENT_FLAG_INCLUDE_REMOVED 2
467 #define DIRENT_FLAG_INCLUDE_CSUM 4
468 #define DIRENT_FLAG_INCLUDE_INLINE_DATA 8
470 #define DIRENT_DOT_FILE 1
471 #define DIRENT_DOT_DOT_FILE 2
472 #define DIRENT_OTHER_FILE 3
473 #define DIRENT_DELETED_FILE 4
474 #define DIRENT_CHECKSUM 5
477 * Inode scan definitions
479 typedef struct ext2_struct_inode_scan *ext2_inode_scan;
484 #define EXT2_SF_CHK_BADBLOCKS 0x0001
485 #define EXT2_SF_BAD_INODE_BLK 0x0002
486 #define EXT2_SF_BAD_EXTRA_BYTES 0x0004
487 #define EXT2_SF_SKIP_MISSING_ITABLE 0x0008
488 #define EXT2_SF_DO_LAZY 0x0010
489 #define EXT2_SF_WARN_GARBAGE_INODES 0x0020
492 * ext2fs_check_if_mounted flags
494 #define EXT2_MF_MOUNTED 1
495 #define EXT2_MF_ISROOT 2
496 #define EXT2_MF_READONLY 4
497 #define EXT2_MF_SWAP 8
498 #define EXT2_MF_BUSY 16
501 * Ext2/linux mode flags. We define them here so that we don't need
502 * to depend on the OS's sys/stat.h, since we may be compiling on a
505 #define LINUX_S_IFMT 00170000
506 #define LINUX_S_IFSOCK 0140000
507 #define LINUX_S_IFLNK 0120000
508 #define LINUX_S_IFREG 0100000
509 #define LINUX_S_IFBLK 0060000
510 #define LINUX_S_IFDIR 0040000
511 #define LINUX_S_IFCHR 0020000
512 #define LINUX_S_IFIFO 0010000
513 #define LINUX_S_ISUID 0004000
514 #define LINUX_S_ISGID 0002000
515 #define LINUX_S_ISVTX 0001000
517 #define LINUX_S_IRWXU 00700
518 #define LINUX_S_IRUSR 00400
519 #define LINUX_S_IWUSR 00200
520 #define LINUX_S_IXUSR 00100
522 #define LINUX_S_IRWXG 00070
523 #define LINUX_S_IRGRP 00040
524 #define LINUX_S_IWGRP 00020
525 #define LINUX_S_IXGRP 00010
527 #define LINUX_S_IRWXO 00007
528 #define LINUX_S_IROTH 00004
529 #define LINUX_S_IWOTH 00002
530 #define LINUX_S_IXOTH 00001
532 #define LINUX_S_ISLNK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFLNK)
533 #define LINUX_S_ISREG(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFREG)
534 #define LINUX_S_ISDIR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFDIR)
535 #define LINUX_S_ISCHR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFCHR)
536 #define LINUX_S_ISBLK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFBLK)
537 #define LINUX_S_ISFIFO(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFIFO)
538 #define LINUX_S_ISSOCK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFSOCK)
541 * ext2 size of an inode
543 #define EXT2_I_SIZE(i) ((i)->i_size | ((__u64) (i)->i_size_high << 32))
546 * ext2_icount_t abstraction
548 #define EXT2_ICOUNT_OPT_INCREMENT 0x01
550 typedef struct ext2_icount *ext2_icount_t;
553 * Flags for ext2fs_bmap
555 #define BMAP_ALLOC 0x0001
556 #define BMAP_SET 0x0002
557 #define BMAP_UNINIT 0x0004
558 #define BMAP_ZERO 0x0008
561 * Returned flags from ext2fs_bmap
563 #define BMAP_RET_UNINIT 0x0001
566 * Flags for imager.c functions
568 #define IMAGER_FLAG_INODEMAP 1
569 #define IMAGER_FLAG_SPARSEWRITE 2
572 * For checking structure magic numbers...
575 #define EXT2_CHECK_MAGIC(struct, code) \
576 if ((struct)->magic != (code)) return (code)
579 * Features supported by this version of the library
581 #define EXT2_LIB_FEATURE_COMPAT_SUPP (EXT2_FEATURE_COMPAT_DIR_PREALLOC|\
582 EXT2_FEATURE_COMPAT_IMAGIC_INODES|\
583 EXT3_FEATURE_COMPAT_HAS_JOURNAL|\
584 EXT2_FEATURE_COMPAT_RESIZE_INODE|\
585 EXT2_FEATURE_COMPAT_DIR_INDEX|\
586 EXT2_FEATURE_COMPAT_EXT_ATTR|\
587 EXT4_FEATURE_COMPAT_SPARSE_SUPER2)
590 #define EXT4_LIB_INCOMPAT_MMP EXT4_FEATURE_INCOMPAT_MMP
592 #define EXT4_LIB_INCOMPAT_MMP (0)
595 #define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\
596 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\
597 EXT2_FEATURE_INCOMPAT_META_BG|\
598 EXT3_FEATURE_INCOMPAT_RECOVER|\
599 EXT3_FEATURE_INCOMPAT_EXTENTS|\
600 EXT4_FEATURE_INCOMPAT_FLEX_BG|\
601 EXT4_FEATURE_INCOMPAT_EA_INODE|\
602 EXT4_LIB_INCOMPAT_MMP|\
603 EXT4_FEATURE_INCOMPAT_64BIT|\
604 EXT4_FEATURE_INCOMPAT_INLINE_DATA|\
605 EXT4_FEATURE_INCOMPAT_ENCRYPT|\
606 EXT4_FEATURE_INCOMPAT_CSUM_SEED|\
607 EXT4_FEATURE_INCOMPAT_LARGEDIR)
609 #define EXT2_LIB_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|\
610 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|\
611 EXT2_FEATURE_RO_COMPAT_LARGE_FILE|\
612 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|\
613 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|\
614 EXT4_FEATURE_RO_COMPAT_GDT_CSUM|\
615 EXT4_FEATURE_RO_COMPAT_BIGALLOC|\
616 EXT4_FEATURE_RO_COMPAT_QUOTA|\
617 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM|\
618 EXT4_FEATURE_RO_COMPAT_READONLY |\
619 EXT4_FEATURE_RO_COMPAT_PROJECT)
622 * These features are only allowed if EXT2_FLAG_SOFTSUPP_FEATURES is passed
625 #define EXT2_LIB_SOFTSUPP_INCOMPAT (0)
626 #define EXT2_LIB_SOFTSUPP_RO_COMPAT (EXT4_FEATURE_RO_COMPAT_REPLICA)
629 /* Translate a block number to a cluster number */
630 #define EXT2FS_CLUSTER_RATIO(fs) (1 << (fs)->cluster_ratio_bits)
631 #define EXT2FS_CLUSTER_MASK(fs) (EXT2FS_CLUSTER_RATIO(fs) - 1)
632 #define EXT2FS_B2C(fs, blk) ((blk) >> (fs)->cluster_ratio_bits)
633 /* Translate a cluster number to a block number */
634 #define EXT2FS_C2B(fs, cluster) ((cluster) << (fs)->cluster_ratio_bits)
635 /* Translate # of blks to # of clusters */
636 #define EXT2FS_NUM_B2C(fs, blks) (((blks) + EXT2FS_CLUSTER_MASK(fs)) >> \
637 (fs)->cluster_ratio_bits)
639 #if defined(HAVE_FSTAT64) && !defined(__OSX_AVAILABLE_BUT_DEPRECATED)
640 typedef struct stat64 ext2fs_struct_stat;
642 typedef struct stat ext2fs_struct_stat;
646 * For ext2fs_close2() and ext2fs_flush2(), this flag allows you to
647 * avoid the fsync call.
649 #define EXT2_FLAG_FLUSH_NO_SYNC 1
652 * Modify and iterate extended attributes
654 struct ext2_xattr_handle;
655 #define XATTR_ABORT 1
656 #define XATTR_CHANGED 2
659 * function prototypes
661 static inline int ext2fs_has_group_desc_csum(ext2_filsys fs)
663 return ext2fs_has_feature_metadata_csum(fs->super) ||
664 ext2fs_has_feature_gdt_csum(fs->super);
667 /* The LARGE_FILE feature should be set if we have stored files 2GB+ in size */
668 static inline int ext2fs_needs_large_file_feature(unsigned long long file_size)
670 return file_size >= 0x80000000ULL;
674 extern void ext2fs_clear_block_uninit(ext2_filsys fs, dgrp_t group);
675 extern errcode_t ext2fs_new_inode(ext2_filsys fs, ext2_ino_t dir, int mode,
676 ext2fs_inode_bitmap map, ext2_ino_t *ret);
677 extern errcode_t ext2fs_new_block(ext2_filsys fs, blk_t goal,
678 ext2fs_block_bitmap map, blk_t *ret);
679 extern errcode_t ext2fs_new_block2(ext2_filsys fs, blk64_t goal,
680 ext2fs_block_bitmap map, blk64_t *ret);
681 extern errcode_t ext2fs_new_block3(ext2_filsys fs, blk64_t goal,
682 ext2fs_block_bitmap map, blk64_t *ret,
683 struct blk_alloc_ctx *ctx);
684 extern errcode_t ext2fs_get_free_blocks(ext2_filsys fs, blk_t start,
685 blk_t finish, int num,
686 ext2fs_block_bitmap map,
688 extern errcode_t ext2fs_get_free_blocks2(ext2_filsys fs, blk64_t start,
689 blk64_t finish, int num,
690 ext2fs_block_bitmap map,
692 extern errcode_t ext2fs_alloc_block(ext2_filsys fs, blk_t goal,
693 char *block_buf, blk_t *ret);
694 extern errcode_t ext2fs_alloc_block2(ext2_filsys fs, blk64_t goal,
695 char *block_buf, blk64_t *ret);
696 extern errcode_t ext2fs_alloc_block3(ext2_filsys fs, blk64_t goal,
697 char *block_buf, blk64_t *ret,
698 struct blk_alloc_ctx *ctx);
700 extern void ext2fs_set_alloc_block_callback(ext2_filsys fs,
701 errcode_t (*func)(ext2_filsys fs,
704 errcode_t (**old)(ext2_filsys fs,
707 blk64_t ext2fs_find_inode_goal(ext2_filsys fs, ext2_ino_t ino,
708 struct ext2_inode *inode, blk64_t lblk);
709 extern void ext2fs_set_new_range_callback(ext2_filsys fs,
710 errcode_t (*func)(ext2_filsys fs, int flags, blk64_t goal,
711 blk64_t len, blk64_t *pblk, blk64_t *plen),
712 errcode_t (**old)(ext2_filsys fs, int flags, blk64_t goal,
713 blk64_t len, blk64_t *pblk, blk64_t *plen));
714 extern void ext2fs_set_block_alloc_stats_range_callback(ext2_filsys fs,
715 void (*func)(ext2_filsys fs, blk64_t blk,
716 blk_t num, int inuse),
717 void (**old)(ext2_filsys fs, blk64_t blk,
718 blk_t num, int inuse));
719 #define EXT2_NEWRANGE_FIXED_GOAL (0x1)
720 #define EXT2_NEWRANGE_MIN_LENGTH (0x2)
721 #define EXT2_NEWRANGE_ALL_FLAGS (0x3)
722 errcode_t ext2fs_new_range(ext2_filsys fs, int flags, blk64_t goal,
723 blk64_t len, ext2fs_block_bitmap map, blk64_t *pblk,
725 #define EXT2_ALLOCRANGE_FIXED_GOAL (0x1)
726 #define EXT2_ALLOCRANGE_ZERO_BLOCKS (0x2)
727 #define EXT2_ALLOCRANGE_ALL_FLAGS (0x3)
728 errcode_t ext2fs_alloc_range(ext2_filsys fs, int flags, blk64_t goal,
729 blk_t len, blk64_t *ret);
732 extern int ext2fs_reserve_super_and_bgd(ext2_filsys fs,
734 ext2fs_block_bitmap bmap);
735 extern void ext2fs_set_block_alloc_stats_callback(ext2_filsys fs,
736 void (*func)(ext2_filsys fs,
739 void (**old)(ext2_filsys fs,
744 void ext2fs_inode_alloc_stats(ext2_filsys fs, ext2_ino_t ino, int inuse);
745 void ext2fs_inode_alloc_stats2(ext2_filsys fs, ext2_ino_t ino,
746 int inuse, int isdir);
747 void ext2fs_block_alloc_stats(ext2_filsys fs, blk_t blk, int inuse);
748 void ext2fs_block_alloc_stats2(ext2_filsys fs, blk64_t blk, int inuse);
749 void ext2fs_block_alloc_stats_range(ext2_filsys fs, blk64_t blk,
750 blk_t num, int inuse);
753 extern errcode_t ext2fs_allocate_tables(ext2_filsys fs);
754 extern errcode_t ext2fs_allocate_group_table(ext2_filsys fs, dgrp_t group,
755 ext2fs_block_bitmap bmap);
758 extern errcode_t ext2fs_u32_list_create(ext2_u32_list *ret, int size);
759 extern errcode_t ext2fs_u32_list_add(ext2_u32_list bb, __u32 blk);
760 extern int ext2fs_u32_list_find(ext2_u32_list bb, __u32 blk);
761 extern int ext2fs_u32_list_test(ext2_u32_list bb, blk_t blk);
762 extern errcode_t ext2fs_u32_list_iterate_begin(ext2_u32_list bb,
763 ext2_u32_iterate *ret);
764 extern int ext2fs_u32_list_iterate(ext2_u32_iterate iter, blk_t *blk);
765 extern void ext2fs_u32_list_iterate_end(ext2_u32_iterate iter);
766 extern errcode_t ext2fs_u32_copy(ext2_u32_list src, ext2_u32_list *dest);
767 extern int ext2fs_u32_list_equal(ext2_u32_list bb1, ext2_u32_list bb2);
769 extern errcode_t ext2fs_badblocks_list_create(ext2_badblocks_list *ret,
771 extern errcode_t ext2fs_badblocks_list_add(ext2_badblocks_list bb,
773 extern int ext2fs_badblocks_list_test(ext2_badblocks_list bb,
775 extern int ext2fs_u32_list_del(ext2_u32_list bb, __u32 blk);
776 extern void ext2fs_badblocks_list_del(ext2_u32_list bb, __u32 blk);
778 ext2fs_badblocks_list_iterate_begin(ext2_badblocks_list bb,
779 ext2_badblocks_iterate *ret);
780 extern int ext2fs_badblocks_list_iterate(ext2_badblocks_iterate iter,
782 extern void ext2fs_badblocks_list_iterate_end(ext2_badblocks_iterate iter);
783 extern errcode_t ext2fs_badblocks_copy(ext2_badblocks_list src,
784 ext2_badblocks_list *dest);
785 extern int ext2fs_badblocks_equal(ext2_badblocks_list bb1,
786 ext2_badblocks_list bb2);
787 extern int ext2fs_u32_list_count(ext2_u32_list bb);
790 extern errcode_t badblocks_list_create(badblocks_list *ret, int size);
791 extern errcode_t badblocks_list_add(badblocks_list bb, blk_t blk);
792 extern int badblocks_list_test(badblocks_list bb, blk_t blk);
793 extern errcode_t badblocks_list_iterate_begin(badblocks_list bb,
794 badblocks_iterate *ret);
795 extern int badblocks_list_iterate(badblocks_iterate iter, blk_t *blk);
796 extern void badblocks_list_iterate_end(badblocks_iterate iter);
797 extern void badblocks_list_free(badblocks_list bb);
800 extern errcode_t ext2fs_update_bb_inode(ext2_filsys fs,
801 ext2_badblocks_list bb_list);
804 extern void ext2fs_free_block_bitmap(ext2fs_block_bitmap bitmap);
805 extern void ext2fs_free_inode_bitmap(ext2fs_inode_bitmap bitmap);
806 extern errcode_t ext2fs_copy_bitmap(ext2fs_generic_bitmap src,
807 ext2fs_generic_bitmap *dest);
808 extern errcode_t ext2fs_write_inode_bitmap(ext2_filsys fs);
809 extern errcode_t ext2fs_write_block_bitmap (ext2_filsys fs);
810 extern errcode_t ext2fs_read_inode_bitmap (ext2_filsys fs);
811 extern errcode_t ext2fs_read_block_bitmap(ext2_filsys fs);
812 extern errcode_t ext2fs_allocate_block_bitmap(ext2_filsys fs,
814 ext2fs_block_bitmap *ret);
815 extern errcode_t ext2fs_allocate_subcluster_bitmap(ext2_filsys fs,
817 ext2fs_block_bitmap *ret);
818 extern int ext2fs_get_bitmap_granularity(ext2fs_block_bitmap bitmap);
819 extern errcode_t ext2fs_allocate_inode_bitmap(ext2_filsys fs,
821 ext2fs_inode_bitmap *ret);
822 extern errcode_t ext2fs_fudge_inode_bitmap_end(ext2fs_inode_bitmap bitmap,
823 ext2_ino_t end, ext2_ino_t *oend);
824 extern errcode_t ext2fs_fudge_block_bitmap_end(ext2fs_block_bitmap bitmap,
825 blk_t end, blk_t *oend);
826 extern errcode_t ext2fs_fudge_block_bitmap_end2(ext2fs_block_bitmap bitmap,
827 blk64_t end, blk64_t *oend);
828 extern void ext2fs_clear_inode_bitmap(ext2fs_inode_bitmap bitmap);
829 extern void ext2fs_clear_block_bitmap(ext2fs_block_bitmap bitmap);
830 extern errcode_t ext2fs_read_bitmaps(ext2_filsys fs);
831 extern errcode_t ext2fs_write_bitmaps(ext2_filsys fs);
832 extern errcode_t ext2fs_resize_inode_bitmap(__u32 new_end, __u32 new_real_end,
833 ext2fs_inode_bitmap bmap);
834 extern errcode_t ext2fs_resize_inode_bitmap2(__u64 new_end,
836 ext2fs_inode_bitmap bmap);
837 extern errcode_t ext2fs_resize_block_bitmap(__u32 new_end, __u32 new_real_end,
838 ext2fs_block_bitmap bmap);
839 extern errcode_t ext2fs_resize_block_bitmap2(__u64 new_end,
841 ext2fs_block_bitmap bmap);
842 extern errcode_t ext2fs_compare_block_bitmap(ext2fs_block_bitmap bm1,
843 ext2fs_block_bitmap bm2);
844 extern errcode_t ext2fs_compare_inode_bitmap(ext2fs_inode_bitmap bm1,
845 ext2fs_inode_bitmap bm2);
846 extern errcode_t ext2fs_set_inode_bitmap_range(ext2fs_inode_bitmap bmap,
847 ext2_ino_t start, unsigned int num,
849 extern errcode_t ext2fs_set_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
850 __u64 start, size_t num,
852 extern errcode_t ext2fs_get_inode_bitmap_range(ext2fs_inode_bitmap bmap,
853 ext2_ino_t start, unsigned int num,
855 extern errcode_t ext2fs_get_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
856 __u64 start, size_t num,
858 extern errcode_t ext2fs_set_block_bitmap_range(ext2fs_block_bitmap bmap,
859 blk_t start, unsigned int num,
861 extern errcode_t ext2fs_set_block_bitmap_range2(ext2fs_block_bitmap bmap,
862 blk64_t start, size_t num,
864 extern errcode_t ext2fs_get_block_bitmap_range(ext2fs_block_bitmap bmap,
865 blk_t start, unsigned int num,
867 extern errcode_t ext2fs_get_block_bitmap_range2(ext2fs_block_bitmap bmap,
868 blk64_t start, size_t num,
872 extern __u32 ext2fs_inode_bitmap_checksum(ext2_filsys fs, dgrp_t group);
873 extern __u32 ext2fs_block_bitmap_checksum(ext2_filsys fs, dgrp_t group);
874 extern dgrp_t ext2fs_group_of_blk2(ext2_filsys fs, blk64_t);
875 extern blk64_t ext2fs_group_first_block2(ext2_filsys fs, dgrp_t group);
876 extern blk64_t ext2fs_group_last_block2(ext2_filsys fs, dgrp_t group);
877 extern int ext2fs_group_blocks_count(ext2_filsys fs, dgrp_t group);
878 extern blk64_t ext2fs_inode_data_blocks2(ext2_filsys fs,
879 struct ext2_inode *inode);
880 extern blk64_t ext2fs_inode_i_blocks(ext2_filsys fs,
881 struct ext2_inode *inode);
882 extern blk64_t ext2fs_blocks_count(struct ext2_super_block *super);
883 extern void ext2fs_blocks_count_set(struct ext2_super_block *super,
885 extern void ext2fs_blocks_count_add(struct ext2_super_block *super,
887 extern blk64_t ext2fs_r_blocks_count(struct ext2_super_block *super);
888 extern void ext2fs_r_blocks_count_set(struct ext2_super_block *super,
890 extern void ext2fs_r_blocks_count_add(struct ext2_super_block *super,
892 extern blk64_t ext2fs_free_blocks_count(struct ext2_super_block *super);
893 extern void ext2fs_free_blocks_count_set(struct ext2_super_block *super,
895 extern void ext2fs_free_blocks_count_add(struct ext2_super_block *super,
897 /* Block group descriptor accessor functions */
898 extern struct ext2_group_desc *ext2fs_group_desc(ext2_filsys fs,
899 struct opaque_ext2_group_desc *gdp,
901 extern blk64_t ext2fs_block_bitmap_csum(ext2_filsys fs, dgrp_t group);
902 extern blk64_t ext2fs_block_bitmap_loc(ext2_filsys fs, dgrp_t group);
903 extern void ext2fs_block_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
905 extern __u32 ext2fs_inode_bitmap_csum(ext2_filsys fs, dgrp_t group);
906 extern blk64_t ext2fs_inode_bitmap_loc(ext2_filsys fs, dgrp_t group);
907 extern void ext2fs_inode_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
909 extern blk64_t ext2fs_inode_table_loc(ext2_filsys fs, dgrp_t group);
910 extern void ext2fs_inode_table_loc_set(ext2_filsys fs, dgrp_t group,
912 extern __u32 ext2fs_bg_free_blocks_count(ext2_filsys fs, dgrp_t group);
913 extern void ext2fs_bg_free_blocks_count_set(ext2_filsys fs, dgrp_t group,
915 extern __u32 ext2fs_bg_free_inodes_count(ext2_filsys fs, dgrp_t group);
916 extern void ext2fs_bg_free_inodes_count_set(ext2_filsys fs, dgrp_t group,
918 extern __u32 ext2fs_bg_used_dirs_count(ext2_filsys fs, dgrp_t group);
919 extern void ext2fs_bg_used_dirs_count_set(ext2_filsys fs, dgrp_t group,
921 extern __u32 ext2fs_bg_itable_unused(ext2_filsys fs, dgrp_t group);
922 extern void ext2fs_bg_itable_unused_set(ext2_filsys fs, dgrp_t group,
924 extern __u16 ext2fs_bg_flags(ext2_filsys fs, dgrp_t group);
925 extern void ext2fs_bg_flags_zap(ext2_filsys fs, dgrp_t group);
926 extern int ext2fs_bg_flags_test(ext2_filsys fs, dgrp_t group, __u16 bg_flag);
927 extern void ext2fs_bg_flags_set(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
928 extern void ext2fs_bg_flags_clear(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
929 extern __u16 ext2fs_bg_checksum(ext2_filsys fs, dgrp_t group);
930 extern void ext2fs_bg_checksum_set(ext2_filsys fs, dgrp_t group, __u16 checksum);
931 extern blk64_t ext2fs_file_acl_block(ext2_filsys fs,
932 const struct ext2_inode *inode);
933 extern void ext2fs_file_acl_block_set(ext2_filsys fs,
934 struct ext2_inode *inode, blk64_t blk);
935 extern errcode_t ext2fs_inode_size_set(ext2_filsys fs, struct ext2_inode *inode,
939 extern errcode_t ext2fs_block_iterate(ext2_filsys fs,
943 int (*func)(ext2_filsys fs,
948 errcode_t ext2fs_block_iterate2(ext2_filsys fs,
952 int (*func)(ext2_filsys fs,
954 e2_blkcnt_t blockcnt,
959 errcode_t ext2fs_block_iterate3(ext2_filsys fs,
963 int (*func)(ext2_filsys fs,
965 e2_blkcnt_t blockcnt,
972 extern errcode_t ext2fs_bmap(ext2_filsys fs, ext2_ino_t ino,
973 struct ext2_inode *inode,
974 char *block_buf, int bmap_flags,
975 blk_t block, blk_t *phys_blk);
976 extern errcode_t ext2fs_bmap2(ext2_filsys fs, ext2_ino_t ino,
977 struct ext2_inode *inode,
978 char *block_buf, int bmap_flags, blk64_t block,
979 int *ret_flags, blk64_t *phys_blk);
980 errcode_t ext2fs_map_cluster_block(ext2_filsys fs, ext2_ino_t ino,
981 struct ext2_inode *inode, blk64_t lblk,
986 extern errcode_t ext2fs_move_blocks(ext2_filsys fs,
987 ext2fs_block_bitmap reserve,
988 ext2fs_block_bitmap alloc_map,
993 extern errcode_t ext2fs_check_desc(ext2_filsys fs);
996 extern errcode_t ext2fs_close(ext2_filsys fs);
997 extern errcode_t ext2fs_close2(ext2_filsys fs, int flags);
998 extern errcode_t ext2fs_close_free(ext2_filsys *fs);
999 extern errcode_t ext2fs_flush(ext2_filsys fs);
1000 extern errcode_t ext2fs_flush2(ext2_filsys fs, int flags);
1001 extern int ext2fs_bg_has_super(ext2_filsys fs, dgrp_t group_block);
1002 extern errcode_t ext2fs_super_and_bgd_loc2(ext2_filsys fs,
1004 blk64_t *ret_super_blk,
1005 blk64_t *ret_old_desc_blk,
1006 blk64_t *ret_new_desc_blk,
1007 blk_t *ret_used_blks);
1008 extern int ext2fs_super_and_bgd_loc(ext2_filsys fs,
1010 blk_t *ret_super_blk,
1011 blk_t *ret_old_desc_blk,
1012 blk_t *ret_new_desc_blk,
1014 extern void ext2fs_update_dynamic_rev(ext2_filsys fs);
1017 extern __u32 ext2fs_crc32_be(__u32 crc, unsigned char const *p, size_t len);
1018 extern __u32 ext2fs_crc32c_le(__u32 crc, unsigned char const *p, size_t len);
1021 extern void ext2fs_init_csum_seed(ext2_filsys fs);
1022 extern errcode_t ext2fs_mmp_csum_set(ext2_filsys fs, struct mmp_struct *mmp);
1023 extern int ext2fs_mmp_csum_verify(ext2_filsys, struct mmp_struct *mmp);
1024 extern int ext2fs_verify_csum_type(ext2_filsys fs, struct ext2_super_block *sb);
1025 extern errcode_t ext2fs_superblock_csum_set(ext2_filsys fs,
1026 struct ext2_super_block *sb);
1027 extern int ext2fs_superblock_csum_verify(ext2_filsys fs,
1028 struct ext2_super_block *sb);
1029 extern errcode_t ext2fs_ext_attr_block_csum_set(ext2_filsys fs,
1030 ext2_ino_t inum, blk64_t block,
1031 struct ext2_ext_attr_header *hdr);
1032 extern int ext2fs_ext_attr_block_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1034 struct ext2_ext_attr_header *hdr);
1035 #define EXT2_DIRENT_TAIL(block, blocksize) \
1036 ((struct ext2_dir_entry_tail *)(((char *)(block)) + \
1037 (blocksize) - sizeof(struct ext2_dir_entry_tail)))
1039 extern void ext2fs_initialize_dirent_tail(ext2_filsys fs,
1040 struct ext2_dir_entry_tail *t);
1041 extern int ext2fs_dirent_has_tail(ext2_filsys fs,
1042 struct ext2_dir_entry *dirent);
1043 extern int ext2fs_dirent_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1044 struct ext2_dir_entry *dirent);
1045 extern int ext2fs_dir_block_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1046 struct ext2_dir_entry *dirent);
1047 extern errcode_t ext2fs_dir_block_csum_set(ext2_filsys fs, ext2_ino_t inum,
1048 struct ext2_dir_entry *dirent);
1049 extern errcode_t ext2fs_get_dx_countlimit(ext2_filsys fs,
1050 struct ext2_dir_entry *dirent,
1051 struct ext2_dx_countlimit **cc,
1053 extern errcode_t ext2fs_extent_block_csum_set(ext2_filsys fs,
1055 struct ext3_extent_header *eh);
1056 extern int ext2fs_extent_block_csum_verify(ext2_filsys fs,
1058 struct ext3_extent_header *eh);
1059 extern errcode_t ext2fs_block_bitmap_csum_set(ext2_filsys fs, dgrp_t group,
1060 char *bitmap, int size);
1061 extern int ext2fs_block_bitmap_csum_verify(ext2_filsys fs, dgrp_t group,
1062 char *bitmap, int size);
1063 extern errcode_t ext2fs_inode_bitmap_csum_set(ext2_filsys fs, dgrp_t group,
1064 char *bitmap, int size);
1065 extern int ext2fs_inode_bitmap_csum_verify(ext2_filsys fs, dgrp_t group,
1066 char *bitmap, int size);
1067 extern errcode_t ext2fs_inode_csum_set(ext2_filsys fs, ext2_ino_t inum,
1068 struct ext2_inode_large *inode);
1069 extern int ext2fs_inode_csum_verify(ext2_filsys fs, ext2_ino_t inum,
1070 struct ext2_inode_large *inode);
1071 extern void ext2fs_group_desc_csum_set(ext2_filsys fs, dgrp_t group);
1072 extern int ext2fs_group_desc_csum_verify(ext2_filsys fs, dgrp_t group);
1073 extern errcode_t ext2fs_set_gdt_csum(ext2_filsys fs);
1074 extern __u16 ext2fs_group_desc_csum(ext2_filsys fs, dgrp_t group);
1077 extern errcode_t ext2fs_init_dblist(ext2_filsys fs, ext2_dblist *ret_dblist);
1078 extern errcode_t ext2fs_add_dir_block(ext2_dblist dblist, ext2_ino_t ino,
1079 blk_t blk, int blockcnt);
1080 extern errcode_t ext2fs_add_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
1081 blk64_t blk, e2_blkcnt_t blockcnt);
1082 extern void ext2fs_dblist_sort(ext2_dblist dblist,
1083 EXT2_QSORT_TYPE (*sortfunc)(const void *,
1085 extern void ext2fs_dblist_sort2(ext2_dblist dblist,
1086 EXT2_QSORT_TYPE (*sortfunc)(const void *,
1088 extern errcode_t ext2fs_dblist_iterate(ext2_dblist dblist,
1089 int (*func)(ext2_filsys fs, struct ext2_db_entry *db_info,
1092 extern errcode_t ext2fs_dblist_iterate2(ext2_dblist dblist,
1093 int (*func)(ext2_filsys fs, struct ext2_db_entry2 *db_info,
1096 extern errcode_t ext2fs_dblist_iterate3(ext2_dblist dblist,
1097 int (*func)(ext2_filsys fs, struct ext2_db_entry2 *db_info,
1099 unsigned long long start,
1100 unsigned long long count,
1102 extern errcode_t ext2fs_set_dir_block(ext2_dblist dblist, ext2_ino_t ino,
1103 blk_t blk, int blockcnt);
1104 extern errcode_t ext2fs_set_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
1105 blk64_t blk, e2_blkcnt_t blockcnt);
1106 extern errcode_t ext2fs_copy_dblist(ext2_dblist src,
1108 extern int ext2fs_dblist_count(ext2_dblist dblist);
1109 extern blk64_t ext2fs_dblist_count2(ext2_dblist dblist);
1110 extern errcode_t ext2fs_dblist_get_last(ext2_dblist dblist,
1111 struct ext2_db_entry **entry);
1112 extern errcode_t ext2fs_dblist_get_last2(ext2_dblist dblist,
1113 struct ext2_db_entry2 **entry);
1114 extern errcode_t ext2fs_dblist_drop_last(ext2_dblist dblist);
1118 ext2fs_dblist_dir_iterate(ext2_dblist dblist,
1121 int (*func)(ext2_ino_t dir,
1123 struct ext2_dir_entry *dirent,
1131 /* digest_encode.c */
1132 #define EXT2FS_DIGEST_SIZE EXT2FS_SHA256_LENGTH
1133 extern int ext2fs_digest_encode(const char *src, int len, char *dst);
1134 extern int ext2fs_digest_decode(const char *src, int len, char *dst);
1138 extern errcode_t ext2fs_read_dir_block(ext2_filsys fs, blk_t block,
1140 extern errcode_t ext2fs_read_dir_block2(ext2_filsys fs, blk_t block,
1141 void *buf, int flags);
1142 extern errcode_t ext2fs_read_dir_block3(ext2_filsys fs, blk64_t block,
1143 void *buf, int flags);
1144 extern errcode_t ext2fs_read_dir_block4(ext2_filsys fs, blk64_t block,
1145 void *buf, int flags, ext2_ino_t ino);
1146 extern errcode_t ext2fs_write_dir_block(ext2_filsys fs, blk_t block,
1148 extern errcode_t ext2fs_write_dir_block2(ext2_filsys fs, blk_t block,
1149 void *buf, int flags);
1150 extern errcode_t ext2fs_write_dir_block3(ext2_filsys fs, blk64_t block,
1151 void *buf, int flags);
1152 extern errcode_t ext2fs_write_dir_block4(ext2_filsys fs, blk64_t block,
1153 void *buf, int flags, ext2_ino_t ino);
1156 extern errcode_t ext2fs_dirhash(int version, const char *name, int len,
1158 ext2_dirhash_t *ret_hash,
1159 ext2_dirhash_t *ret_minor_hash);
1163 extern errcode_t ext2fs_get_rec_len(ext2_filsys fs,
1164 struct ext2_dir_entry *dirent,
1165 unsigned int *rec_len);
1166 extern errcode_t ext2fs_set_rec_len(ext2_filsys fs,
1168 struct ext2_dir_entry *dirent);
1169 extern errcode_t ext2fs_dir_iterate(ext2_filsys fs,
1173 int (*func)(struct ext2_dir_entry *dirent,
1179 extern errcode_t ext2fs_dir_iterate2(ext2_filsys fs,
1183 int (*func)(ext2_ino_t dir,
1185 struct ext2_dir_entry *dirent,
1193 extern errcode_t ext2fs_dup_handle(ext2_filsys src, ext2_filsys *dest);
1196 extern errcode_t ext2fs_expand_dir(ext2_filsys fs, ext2_ino_t dir);
1199 extern __u32 ext2fs_ext_attr_hash_entry(struct ext2_ext_attr_entry *entry,
1201 extern errcode_t ext2fs_ext_attr_hash_entry2(ext2_filsys fs,
1202 struct ext2_ext_attr_entry *entry,
1203 void *data, __u32 *hash);
1204 extern errcode_t ext2fs_read_ext_attr(ext2_filsys fs, blk_t block, void *buf);
1205 extern errcode_t ext2fs_read_ext_attr2(ext2_filsys fs, blk64_t block,
1207 extern errcode_t ext2fs_read_ext_attr3(ext2_filsys fs, blk64_t block,
1208 void *buf, ext2_ino_t inum);
1209 extern errcode_t ext2fs_write_ext_attr(ext2_filsys fs, blk_t block,
1211 extern errcode_t ext2fs_write_ext_attr2(ext2_filsys fs, blk64_t block,
1213 extern errcode_t ext2fs_write_ext_attr3(ext2_filsys fs, blk64_t block,
1214 void *buf, ext2_ino_t inum);
1215 extern errcode_t ext2fs_adjust_ea_refcount(ext2_filsys fs, blk_t blk,
1217 int adjust, __u32 *newcount);
1218 extern errcode_t ext2fs_adjust_ea_refcount2(ext2_filsys fs, blk64_t blk,
1220 int adjust, __u32 *newcount);
1221 extern errcode_t ext2fs_adjust_ea_refcount3(ext2_filsys fs, blk64_t blk,
1223 int adjust, __u32 *newcount,
1225 errcode_t ext2fs_xattrs_write(struct ext2_xattr_handle *handle);
1226 errcode_t ext2fs_xattrs_read(struct ext2_xattr_handle *handle);
1227 errcode_t ext2fs_xattrs_iterate(struct ext2_xattr_handle *h,
1228 int (*func)(char *name, char *value,
1229 size_t value_len, void *data),
1231 errcode_t ext2fs_xattr_get(struct ext2_xattr_handle *h, const char *key,
1232 void **value, size_t *value_len);
1233 errcode_t ext2fs_xattr_set(struct ext2_xattr_handle *handle,
1237 errcode_t ext2fs_xattr_remove(struct ext2_xattr_handle *handle,
1239 errcode_t ext2fs_xattrs_open(ext2_filsys fs, ext2_ino_t ino,
1240 struct ext2_xattr_handle **handle);
1241 errcode_t ext2fs_xattrs_close(struct ext2_xattr_handle **handle);
1242 errcode_t ext2fs_free_ext_attr(ext2_filsys fs, ext2_ino_t ino,
1243 struct ext2_inode_large *inode);
1244 errcode_t ext2fs_xattrs_count(struct ext2_xattr_handle *handle, size_t *count);
1245 errcode_t ext2fs_xattr_inode_max_size(ext2_filsys fs, ext2_ino_t ino,
1247 #define XATTR_HANDLE_FLAG_RAW 0x0001
1248 errcode_t ext2fs_xattrs_flags(struct ext2_xattr_handle *handle,
1249 unsigned int *new_flags, unsigned int *old_flags);
1250 extern void ext2fs_ext_attr_block_rehash(struct ext2_ext_attr_header *header,
1251 struct ext2_ext_attr_entry *end);
1252 extern __u32 ext2fs_get_ea_inode_hash(struct ext2_inode *inode);
1253 extern void ext2fs_set_ea_inode_hash(struct ext2_inode *inode, __u32 hash);
1256 extern errcode_t ext2fs_extent_header_verify(void *ptr, int size);
1257 extern errcode_t ext2fs_extent_open(ext2_filsys fs, ext2_ino_t ino,
1258 ext2_extent_handle_t *handle);
1259 extern errcode_t ext2fs_extent_open2(ext2_filsys fs, ext2_ino_t ino,
1260 struct ext2_inode *inode,
1261 ext2_extent_handle_t *ret_handle);
1262 extern void ext2fs_extent_free(ext2_extent_handle_t handle);
1263 extern errcode_t ext2fs_extent_get(ext2_extent_handle_t handle,
1264 int flags, struct ext2fs_extent *extent);
1265 extern errcode_t ext2fs_extent_node_split(ext2_extent_handle_t handle);
1266 extern errcode_t ext2fs_extent_replace(ext2_extent_handle_t handle, int flags,
1267 struct ext2fs_extent *extent);
1268 extern errcode_t ext2fs_extent_insert(ext2_extent_handle_t handle, int flags,
1269 struct ext2fs_extent *extent);
1270 extern errcode_t ext2fs_extent_set_bmap(ext2_extent_handle_t handle,
1271 blk64_t logical, blk64_t physical,
1273 extern errcode_t ext2fs_extent_delete(ext2_extent_handle_t handle, int flags);
1274 extern errcode_t ext2fs_extent_get_info(ext2_extent_handle_t handle,
1275 struct ext2_extent_info *info);
1276 extern errcode_t ext2fs_extent_goto(ext2_extent_handle_t handle,
1278 extern errcode_t ext2fs_extent_goto2(ext2_extent_handle_t handle,
1279 int leaf_level, blk64_t blk);
1280 extern errcode_t ext2fs_extent_fix_parents(ext2_extent_handle_t handle);
1281 size_t ext2fs_max_extent_depth(ext2_extent_handle_t handle);
1284 #define EXT2_FALLOCATE_ZERO_BLOCKS (0x1)
1285 #define EXT2_FALLOCATE_FORCE_INIT (0x2)
1286 #define EXT2_FALLOCATE_FORCE_UNINIT (0x4)
1287 #define EXT2_FALLOCATE_INIT_BEYOND_EOF (0x8)
1288 #define EXT2_FALLOCATE_ALL_FLAGS (0xF)
1289 errcode_t ext2fs_fallocate(ext2_filsys fs, int flags, ext2_ino_t ino,
1290 struct ext2_inode *inode, blk64_t goal,
1291 blk64_t start, blk64_t len);
1294 extern errcode_t ext2fs_file_open2(ext2_filsys fs, ext2_ino_t ino,
1295 struct ext2_inode *inode,
1296 int flags, ext2_file_t *ret);
1297 extern errcode_t ext2fs_file_open(ext2_filsys fs, ext2_ino_t ino,
1298 int flags, ext2_file_t *ret);
1299 extern ext2_filsys ext2fs_file_get_fs(ext2_file_t file);
1300 struct ext2_inode *ext2fs_file_get_inode(ext2_file_t file);
1301 extern ext2_ino_t ext2fs_file_get_inode_num(ext2_file_t file);
1302 extern errcode_t ext2fs_file_close(ext2_file_t file);
1303 extern errcode_t ext2fs_file_flush(ext2_file_t file);
1304 extern errcode_t ext2fs_file_read(ext2_file_t file, void *buf,
1305 unsigned int wanted, unsigned int *got);
1306 extern errcode_t ext2fs_file_write(ext2_file_t file, const void *buf,
1307 unsigned int nbytes, unsigned int *written);
1308 extern errcode_t ext2fs_file_llseek(ext2_file_t file, __u64 offset,
1309 int whence, __u64 *ret_pos);
1310 extern errcode_t ext2fs_file_lseek(ext2_file_t file, ext2_off_t offset,
1311 int whence, ext2_off_t *ret_pos);
1312 errcode_t ext2fs_file_get_lsize(ext2_file_t file, __u64 *ret_size);
1313 extern ext2_off_t ext2fs_file_get_size(ext2_file_t file);
1314 extern errcode_t ext2fs_file_set_size(ext2_file_t file, ext2_off_t size);
1315 extern errcode_t ext2fs_file_set_size2(ext2_file_t file, ext2_off64_t size);
1318 extern char *ext2fs_find_block_device(dev_t device);
1321 extern errcode_t ext2fs_sync_device(int fd, int flushb);
1324 extern void ext2fs_free(ext2_filsys fs);
1325 extern void ext2fs_free_dblist(ext2_dblist dblist);
1326 extern void ext2fs_badblocks_list_free(ext2_badblocks_list bb);
1327 extern void ext2fs_u32_list_free(ext2_u32_list bb);
1330 extern void ext2fs_free_generic_bitmap(ext2fs_inode_bitmap bitmap);
1331 extern errcode_t ext2fs_make_generic_bitmap(errcode_t magic, ext2_filsys fs,
1332 __u32 start, __u32 end,
1334 const char *descr, char *init_map,
1335 ext2fs_generic_bitmap *ret);
1336 extern errcode_t ext2fs_allocate_generic_bitmap(__u32 start,
1340 ext2fs_generic_bitmap *ret);
1341 extern errcode_t ext2fs_copy_generic_bitmap(ext2fs_generic_bitmap src,
1342 ext2fs_generic_bitmap *dest);
1343 extern void ext2fs_clear_generic_bitmap(ext2fs_generic_bitmap bitmap);
1344 extern errcode_t ext2fs_fudge_generic_bitmap_end(ext2fs_inode_bitmap bitmap,
1349 extern void ext2fs_set_generic_bitmap_padding(ext2fs_generic_bitmap map);
1350 extern errcode_t ext2fs_resize_generic_bitmap(errcode_t magic,
1353 ext2fs_generic_bitmap bmap);
1354 extern errcode_t ext2fs_compare_generic_bitmap(errcode_t magic, errcode_t neq,
1355 ext2fs_generic_bitmap bm1,
1356 ext2fs_generic_bitmap bm2);
1357 extern errcode_t ext2fs_get_generic_bitmap_range(ext2fs_generic_bitmap bmap,
1359 __u32 start, __u32 num,
1361 extern errcode_t ext2fs_set_generic_bitmap_range(ext2fs_generic_bitmap bmap,
1363 __u32 start, __u32 num,
1365 extern errcode_t ext2fs_find_first_zero_generic_bitmap(ext2fs_generic_bitmap bitmap,
1366 __u32 start, __u32 end,
1368 extern errcode_t ext2fs_find_first_set_generic_bitmap(ext2fs_generic_bitmap bitmap,
1369 __u32 start, __u32 end,
1372 /* gen_bitmap64.c */
1373 void ext2fs_free_generic_bmap(ext2fs_generic_bitmap bmap);
1374 errcode_t ext2fs_alloc_generic_bmap(ext2_filsys fs, errcode_t magic,
1375 int type, __u64 start, __u64 end,
1378 ext2fs_generic_bitmap *ret);
1379 errcode_t ext2fs_copy_generic_bmap(ext2fs_generic_bitmap src,
1380 ext2fs_generic_bitmap *dest);
1381 void ext2fs_clear_generic_bmap(ext2fs_generic_bitmap bitmap);
1382 errcode_t ext2fs_fudge_generic_bmap_end(ext2fs_generic_bitmap bitmap,
1384 __u64 end, __u64 *oend);
1385 void ext2fs_set_generic_bmap_padding(ext2fs_generic_bitmap bmap);
1386 errcode_t ext2fs_resize_generic_bmap(ext2fs_generic_bitmap bmap,
1388 __u64 new_real_end);
1389 errcode_t ext2fs_compare_generic_bmap(errcode_t neq,
1390 ext2fs_generic_bitmap bm1,
1391 ext2fs_generic_bitmap bm2);
1392 errcode_t ext2fs_get_generic_bmap_range(ext2fs_generic_bitmap bmap,
1393 __u64 start, unsigned int num,
1395 errcode_t ext2fs_set_generic_bmap_range(ext2fs_generic_bitmap bmap,
1396 __u64 start, unsigned int num,
1398 errcode_t ext2fs_convert_subcluster_bitmap(ext2_filsys fs,
1399 ext2fs_block_bitmap *bitmap);
1401 /* get_num_dirs.c */
1402 extern errcode_t ext2fs_get_num_dirs(ext2_filsys fs, ext2_ino_t *ret_num_dirs);
1405 extern errcode_t ext2fs_get_device_size(const char *file, int blocksize,
1407 extern errcode_t ext2fs_get_device_size2(const char *file, int blocksize,
1408 blk64_t *retblocks);
1411 extern int ext2fs_get_dio_alignment(int fd);
1412 errcode_t ext2fs_get_device_sectsize(const char *file, int *sectsize);
1413 errcode_t ext2fs_get_device_phys_sectsize(const char *file, int *sectsize);
1416 errcode_t ext2fs_iblk_add_blocks(ext2_filsys fs, struct ext2_inode *inode,
1417 blk64_t num_blocks);
1418 errcode_t ext2fs_iblk_sub_blocks(ext2_filsys fs, struct ext2_inode *inode,
1419 blk64_t num_blocks);
1420 errcode_t ext2fs_iblk_set(ext2_filsys fs, struct ext2_inode *inode, blk64_t b);
1423 extern errcode_t ext2fs_image_inode_write(ext2_filsys fs, int fd, int flags);
1424 extern errcode_t ext2fs_image_inode_read(ext2_filsys fs, int fd, int flags);
1425 extern errcode_t ext2fs_image_super_write(ext2_filsys fs, int fd, int flags);
1426 extern errcode_t ext2fs_image_super_read(ext2_filsys fs, int fd, int flags);
1427 extern errcode_t ext2fs_image_bitmap_write(ext2_filsys fs, int fd, int flags);
1428 extern errcode_t ext2fs_image_bitmap_read(ext2_filsys fs, int fd, int flags);
1431 errcode_t ext2fs_read_ind_block(ext2_filsys fs, blk_t blk, void *buf);
1432 errcode_t ext2fs_write_ind_block(ext2_filsys fs, blk_t blk, void *buf);
1435 extern errcode_t ext2fs_initialize(const char *name, int flags,
1436 struct ext2_super_block *param,
1437 io_manager manager, ext2_filsys *ret_fs);
1440 extern void ext2fs_free_icount(ext2_icount_t icount);
1441 extern errcode_t ext2fs_create_icount_tdb(ext2_filsys fs, char *tdb_dir,
1442 int flags, ext2_icount_t *ret);
1443 extern errcode_t ext2fs_create_icount2(ext2_filsys fs, int flags,
1445 ext2_icount_t hint, ext2_icount_t *ret);
1446 extern errcode_t ext2fs_create_icount(ext2_filsys fs, int flags,
1448 ext2_icount_t *ret);
1449 extern errcode_t ext2fs_icount_fetch(ext2_icount_t icount, ext2_ino_t ino,
1451 extern errcode_t ext2fs_icount_increment(ext2_icount_t icount, ext2_ino_t ino,
1453 extern errcode_t ext2fs_icount_decrement(ext2_icount_t icount, ext2_ino_t ino,
1455 extern errcode_t ext2fs_icount_store(ext2_icount_t icount, ext2_ino_t ino,
1457 extern ext2_ino_t ext2fs_get_icount_size(ext2_icount_t icount);
1458 errcode_t ext2fs_icount_validate(ext2_icount_t icount, FILE *);
1462 extern errcode_t ext2fs_get_memalign(unsigned long size,
1463 unsigned long align, void *ptr);
1466 extern errcode_t ext2fs_inline_data_init(ext2_filsys fs, ext2_ino_t ino);
1467 extern errcode_t ext2fs_inline_data_size(ext2_filsys fs, ext2_ino_t ino,
1469 extern errcode_t ext2fs_inline_data_get(ext2_filsys fs, ext2_ino_t ino,
1470 struct ext2_inode *inode,
1471 void *buf, size_t *size);
1472 extern errcode_t ext2fs_inline_data_set(ext2_filsys fs, ext2_ino_t ino,
1473 struct ext2_inode *inode,
1474 void *buf, size_t size);
1477 extern errcode_t ext2fs_create_inode_cache(ext2_filsys fs,
1478 unsigned int cache_size);
1479 extern void ext2fs_free_inode_cache(struct ext2_inode_cache *icache);
1480 extern errcode_t ext2fs_flush_icache(ext2_filsys fs);
1481 extern errcode_t ext2fs_get_next_inode_full(ext2_inode_scan scan,
1483 struct ext2_inode *inode,
1485 #define EXT2_INODE_SCAN_DEFAULT_BUFFER_BLOCKS 8
1486 extern errcode_t ext2fs_open_inode_scan(ext2_filsys fs, int buffer_blocks,
1487 ext2_inode_scan *ret_scan);
1488 extern void ext2fs_close_inode_scan(ext2_inode_scan scan);
1489 extern errcode_t ext2fs_get_next_inode(ext2_inode_scan scan, ext2_ino_t *ino,
1490 struct ext2_inode *inode);
1491 extern errcode_t ext2fs_inode_scan_goto_blockgroup(ext2_inode_scan scan,
1493 extern void ext2fs_set_inode_callback
1494 (ext2_inode_scan scan,
1495 errcode_t (*done_group)(ext2_filsys fs,
1496 ext2_inode_scan scan,
1499 void *done_group_data);
1500 extern int ext2fs_inode_scan_flags(ext2_inode_scan scan, int set_flags,
1502 extern errcode_t ext2fs_read_inode_full(ext2_filsys fs, ext2_ino_t ino,
1503 struct ext2_inode * inode,
1505 extern errcode_t ext2fs_read_inode (ext2_filsys fs, ext2_ino_t ino,
1506 struct ext2_inode * inode);
1507 extern errcode_t ext2fs_write_inode_full(ext2_filsys fs, ext2_ino_t ino,
1508 struct ext2_inode * inode,
1510 extern errcode_t ext2fs_write_inode(ext2_filsys fs, ext2_ino_t ino,
1511 struct ext2_inode * inode);
1512 extern errcode_t ext2fs_write_new_inode(ext2_filsys fs, ext2_ino_t ino,
1513 struct ext2_inode * inode);
1514 extern errcode_t ext2fs_get_blocks(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
1515 extern errcode_t ext2fs_check_directory(ext2_filsys fs, ext2_ino_t ino);
1518 extern io_manager inode_io_manager;
1519 extern errcode_t ext2fs_inode_io_intern(ext2_filsys fs, ext2_ino_t ino,
1521 extern errcode_t ext2fs_inode_io_intern2(ext2_filsys fs, ext2_ino_t ino,
1522 struct ext2_inode *inode,
1526 extern errcode_t ext2fs_check_if_mounted(const char *file, int *mount_flags);
1527 extern errcode_t ext2fs_check_mount_point(const char *device, int *mount_flags,
1528 char *mtpt, int mtlen);
1532 * NOTE: This function removes from an inode the blocks "start", "end", and
1533 * every block in between.
1535 extern errcode_t ext2fs_punch(ext2_filsys fs, ext2_ino_t ino,
1536 struct ext2_inode *inode,
1537 char *block_buf, blk64_t start,
1541 extern errcode_t ext2fs_lookup(ext2_filsys fs, ext2_ino_t dir, const char *name,
1542 int namelen, char *buf, ext2_ino_t *inode);
1543 extern errcode_t ext2fs_namei(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1544 const char *name, ext2_ino_t *inode);
1545 errcode_t ext2fs_namei_follow(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1546 const char *name, ext2_ino_t *inode);
1547 extern errcode_t ext2fs_follow_link(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1548 ext2_ino_t inode, ext2_ino_t *res_inode);
1551 int ext2fs_native_flag(void);
1554 extern errcode_t ext2fs_new_dir_block(ext2_filsys fs, ext2_ino_t dir_ino,
1555 ext2_ino_t parent_ino, char **block);
1556 extern errcode_t ext2fs_new_dir_inline_data(ext2_filsys fs, ext2_ino_t dir_ino,
1557 ext2_ino_t parent_ino, __u32 *iblock);
1560 extern errcode_t ext2fs_mkdir(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t inum,
1564 extern errcode_t ext2fs_zero_blocks(ext2_filsys fs, blk_t blk, int num,
1565 blk_t *ret_blk, int *ret_count);
1566 extern errcode_t ext2fs_zero_blocks2(ext2_filsys fs, blk64_t blk, int num,
1567 blk64_t *ret_blk, int *ret_count);
1568 extern errcode_t ext2fs_create_journal_superblock(ext2_filsys fs,
1569 __u32 num_blocks, int flags,
1571 extern errcode_t ext2fs_add_journal_device(ext2_filsys fs,
1572 ext2_filsys journal_dev);
1573 extern errcode_t ext2fs_add_journal_inode(ext2_filsys fs, blk_t num_blocks,
1575 extern errcode_t ext2fs_add_journal_inode2(ext2_filsys fs, blk_t num_blocks,
1576 blk64_t goal, int flags);
1577 extern int ext2fs_default_journal_size(__u64 num_blocks);
1578 extern int ext2fs_journal_sb_start(int blocksize);
1581 extern errcode_t ext2fs_open(const char *name, int flags, int superblock,
1582 unsigned int block_size, io_manager manager,
1583 ext2_filsys *ret_fs);
1584 extern errcode_t ext2fs_open2(const char *name, const char *io_options,
1585 int flags, int superblock,
1586 unsigned int block_size, io_manager manager,
1587 ext2_filsys *ret_fs);
1589 * The dgrp_t argument to these two functions is not actually a group number
1590 * but a block number offset within a group table! Convert with the formula
1591 * (group_number / groups_per_block).
1593 extern blk64_t ext2fs_descriptor_block_loc2(ext2_filsys fs,
1594 blk64_t group_block, dgrp_t i);
1595 extern blk_t ext2fs_descriptor_block_loc(ext2_filsys fs, blk_t group_block,
1597 errcode_t ext2fs_get_data_io(ext2_filsys fs, io_channel *old_io);
1598 errcode_t ext2fs_set_data_io(ext2_filsys fs, io_channel new_io);
1599 errcode_t ext2fs_rewrite_to_io(ext2_filsys fs, io_channel new_io);
1601 /* get_pathname.c */
1602 extern errcode_t ext2fs_get_pathname(ext2_filsys fs, ext2_ino_t dir, ext2_ino_t ino,
1606 errcode_t ext2fs_link(ext2_filsys fs, ext2_ino_t dir, const char *name,
1607 ext2_ino_t ino, int flags);
1608 errcode_t ext2fs_unlink(ext2_filsys fs, ext2_ino_t dir, const char *name,
1609 ext2_ino_t ino, int flags);
1612 errcode_t ext2fs_symlink(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t ino,
1613 const char *name, const char *target);
1616 errcode_t ext2fs_mmp_read(ext2_filsys fs, blk64_t mmp_blk, void *buf);
1617 errcode_t ext2fs_mmp_write(ext2_filsys fs, blk64_t mmp_blk, void *buf);
1618 errcode_t ext2fs_mmp_clear(ext2_filsys fs);
1619 errcode_t ext2fs_mmp_init(ext2_filsys fs);
1620 errcode_t ext2fs_mmp_start(ext2_filsys fs);
1621 errcode_t ext2fs_mmp_update(ext2_filsys fs);
1622 errcode_t ext2fs_mmp_update2(ext2_filsys fs, int immediately);
1623 errcode_t ext2fs_mmp_stop(ext2_filsys fs);
1624 unsigned ext2fs_mmp_new_seq(void);
1627 extern errcode_t ext2fs_read_bb_inode(ext2_filsys fs,
1628 ext2_badblocks_list *bb_list);
1630 /* read_bb_file.c */
1631 extern errcode_t ext2fs_read_bb_FILE2(ext2_filsys fs, FILE *f,
1632 ext2_badblocks_list *bb_list,
1634 void (*invalid)(ext2_filsys fs,
1638 extern errcode_t ext2fs_read_bb_FILE(ext2_filsys fs, FILE *f,
1639 ext2_badblocks_list *bb_list,
1640 void (*invalid)(ext2_filsys fs,
1644 extern errcode_t ext2fs_create_resize_inode(ext2_filsys fs);
1647 #define EXT2FS_SHA256_LENGTH 32
1649 extern void ext2fs_sha256(const unsigned char *in, unsigned long in_size,
1650 unsigned char out[EXT2FS_SHA256_LENGTH]);
1654 #define EXT2FS_SHA512_LENGTH 64
1655 extern void ext2fs_sha512(const unsigned char *in, unsigned long in_size,
1656 unsigned char out[EXT2FS_SHA512_LENGTH]);
1659 extern errcode_t ext2fs_dirent_swab_in2(ext2_filsys fs, char *buf, size_t size,
1661 extern errcode_t ext2fs_dirent_swab_in(ext2_filsys fs, char *buf, int flags);
1662 extern errcode_t ext2fs_dirent_swab_out2(ext2_filsys fs, char *buf, size_t size,
1664 extern errcode_t ext2fs_dirent_swab_out(ext2_filsys fs, char *buf, int flags);
1665 extern void ext2fs_swap_ext_attr(char *to, char *from, int bufsize,
1667 extern void ext2fs_swap_ext_attr_header(struct ext2_ext_attr_header *to_header,
1668 struct ext2_ext_attr_header *from_hdr);
1669 extern void ext2fs_swap_ext_attr_entry(struct ext2_ext_attr_entry *to_entry,
1670 struct ext2_ext_attr_entry *from_entry);
1671 extern void ext2fs_swap_super(struct ext2_super_block * super);
1672 extern void ext2fs_swap_group_desc(struct ext2_group_desc *gdp);
1673 extern void ext2fs_swap_group_desc2(ext2_filsys, struct ext2_group_desc *gdp);
1674 extern void ext2fs_swap_inode_full(ext2_filsys fs, struct ext2_inode_large *t,
1675 struct ext2_inode_large *f, int hostorder,
1677 extern void ext2fs_swap_inode(ext2_filsys fs,struct ext2_inode *t,
1678 struct ext2_inode *f, int hostorder);
1679 extern void ext2fs_swap_mmp(struct mmp_struct *mmp);
1682 extern int ext2fs_open_file(const char *pathname, int flags, mode_t mode);
1683 extern int ext2fs_stat(const char *path, ext2fs_struct_stat *buf);
1684 extern int ext2fs_fstat(int fd, ext2fs_struct_stat *buf);
1687 extern int ext2fs_inode_has_valid_blocks(struct ext2_inode *inode);
1688 extern int ext2fs_inode_has_valid_blocks2(ext2_filsys fs,
1689 struct ext2_inode *inode);
1692 extern int ext2fs_parse_version_string(const char *ver_string);
1693 extern int ext2fs_get_library_version(const char **ver_string,
1694 const char **date_string);
1696 /* write_bb_file.c */
1697 extern errcode_t ext2fs_write_bb_FILE(ext2_badblocks_list bb_list,
1702 /* inline functions */
1703 #ifdef NO_INLINE_FUNCS
1704 extern errcode_t ext2fs_get_mem(unsigned long size, void *ptr);
1705 extern errcode_t ext2fs_get_memzero(unsigned long size, void *ptr);
1706 extern errcode_t ext2fs_get_array(unsigned long count,
1707 unsigned long size, void *ptr);
1708 extern errcode_t ext2fs_get_arrayzero(unsigned long count,
1709 unsigned long size, void *ptr);
1710 extern errcode_t ext2fs_free_mem(void *ptr);
1711 extern errcode_t ext2fs_resize_mem(unsigned long old_size,
1712 unsigned long size, void *ptr);
1713 extern void ext2fs_mark_super_dirty(ext2_filsys fs);
1714 extern void ext2fs_mark_changed(ext2_filsys fs);
1715 extern int ext2fs_test_changed(ext2_filsys fs);
1716 extern void ext2fs_mark_valid(ext2_filsys fs);
1717 extern void ext2fs_unmark_valid(ext2_filsys fs);
1718 extern int ext2fs_test_valid(ext2_filsys fs);
1719 extern void ext2fs_mark_ib_dirty(ext2_filsys fs);
1720 extern void ext2fs_mark_bb_dirty(ext2_filsys fs);
1721 extern int ext2fs_test_ib_dirty(ext2_filsys fs);
1722 extern int ext2fs_test_bb_dirty(ext2_filsys fs);
1723 extern dgrp_t ext2fs_group_of_blk(ext2_filsys fs, blk_t blk);
1724 extern dgrp_t ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino);
1725 extern blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group);
1726 extern blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group);
1727 extern blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
1728 struct ext2_inode *inode);
1729 extern unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b);
1730 extern __u64 ext2fs_div64_ceil(__u64 a, __u64 b);
1731 extern int ext2fs_dirent_name_len(const struct ext2_dir_entry *entry);
1732 extern void ext2fs_dirent_set_name_len(struct ext2_dir_entry *entry, int len);
1733 extern int ext2fs_dirent_file_type(const struct ext2_dir_entry *entry);
1734 extern void ext2fs_dirent_set_file_type(struct ext2_dir_entry *entry, int type);
1735 extern struct ext2_inode *ext2fs_inode(struct ext2_inode_large * large_inode);
1736 extern const struct ext2_inode *ext2fs_const_inode(const struct ext2_inode_large * large_inode);
1741 * The actual inlined functions definitions themselves...
1743 * If NO_INLINE_FUNCS is defined, then we won't try to do inline
1746 #if (defined(INCLUDE_INLINE_FUNCS) || !defined(NO_INLINE_FUNCS))
1747 #ifdef INCLUDE_INLINE_FUNCS
1748 #define _INLINE_ extern
1750 #if (__STDC_VERSION__ >= 199901L)
1751 #define _INLINE_ inline
1754 #define _INLINE_ extern __inline__
1755 #else /* For Watcom C */
1756 #define _INLINE_ extern inline
1757 #endif /* __GNUC__ */
1758 #endif /* __STDC_VERSION__ >= 199901L */
1761 #ifndef EXT2_CUSTOM_MEMORY_ROUTINES
1764 * Allocate memory. The 'ptr' arg must point to a pointer.
1766 _INLINE_ errcode_t ext2fs_get_mem(unsigned long size, void *ptr)
1772 return EXT2_ET_NO_MEMORY;
1773 memcpy(ptr, &pp, sizeof (pp));
1777 _INLINE_ errcode_t ext2fs_get_memzero(unsigned long size, void *ptr)
1783 return EXT2_ET_NO_MEMORY;
1784 memset(pp, 0, size);
1785 memcpy(ptr, &pp, sizeof(pp));
1789 _INLINE_ errcode_t ext2fs_get_array(unsigned long count, unsigned long size, void *ptr)
1791 if (count && (~0UL)/count < size)
1792 return EXT2_ET_NO_MEMORY;
1793 return ext2fs_get_mem(count*size, ptr);
1796 _INLINE_ errcode_t ext2fs_get_arrayzero(unsigned long count,
1797 unsigned long size, void *ptr)
1801 if (count && (~0UL)/count < size)
1802 return EXT2_ET_NO_MEMORY;
1803 pp = calloc(count, size);
1805 return EXT2_ET_NO_MEMORY;
1806 memcpy(ptr, &pp, sizeof(pp));
1811 * Free memory. The 'ptr' arg must point to a pointer.
1813 _INLINE_ errcode_t ext2fs_free_mem(void *ptr)
1817 memcpy(&p, ptr, sizeof(p));
1820 memcpy(ptr, &p, sizeof(p));
1825 * Resize memory. The 'ptr' arg must point to a pointer.
1827 _INLINE_ errcode_t ext2fs_resize_mem(unsigned long EXT2FS_ATTR((unused)) old_size,
1828 unsigned long size, void *ptr)
1832 /* Use "memcpy" for pointer assignments here to avoid problems
1833 * with C99 strict type aliasing rules. */
1834 memcpy(&p, ptr, sizeof(p));
1835 p = realloc(p, size);
1837 return EXT2_ET_NO_MEMORY;
1838 memcpy(ptr, &p, sizeof(p));
1841 #endif /* Custom memory routines */
1844 * Mark a filesystem superblock as dirty
1846 _INLINE_ void ext2fs_mark_super_dirty(ext2_filsys fs)
1848 fs->flags |= EXT2_FLAG_DIRTY | EXT2_FLAG_CHANGED;
1852 * Mark a filesystem as changed
1854 _INLINE_ void ext2fs_mark_changed(ext2_filsys fs)
1856 fs->flags |= EXT2_FLAG_CHANGED;
1860 * Check to see if a filesystem has changed
1862 _INLINE_ int ext2fs_test_changed(ext2_filsys fs)
1864 return (fs->flags & EXT2_FLAG_CHANGED);
1868 * Mark a filesystem as valid
1870 _INLINE_ void ext2fs_mark_valid(ext2_filsys fs)
1872 fs->flags |= EXT2_FLAG_VALID;
1876 * Mark a filesystem as NOT valid
1878 _INLINE_ void ext2fs_unmark_valid(ext2_filsys fs)
1880 fs->flags &= ~EXT2_FLAG_VALID;
1884 * Check to see if a filesystem is valid
1886 _INLINE_ int ext2fs_test_valid(ext2_filsys fs)
1888 return (fs->flags & EXT2_FLAG_VALID);
1892 * Mark the inode bitmap as dirty
1894 _INLINE_ void ext2fs_mark_ib_dirty(ext2_filsys fs)
1896 fs->flags |= EXT2_FLAG_IB_DIRTY | EXT2_FLAG_CHANGED;
1900 * Mark the block bitmap as dirty
1902 _INLINE_ void ext2fs_mark_bb_dirty(ext2_filsys fs)
1904 fs->flags |= EXT2_FLAG_BB_DIRTY | EXT2_FLAG_CHANGED;
1908 * Check to see if a filesystem's inode bitmap is dirty
1910 _INLINE_ int ext2fs_test_ib_dirty(ext2_filsys fs)
1912 return (fs->flags & EXT2_FLAG_IB_DIRTY);
1916 * Check to see if a filesystem's block bitmap is dirty
1918 _INLINE_ int ext2fs_test_bb_dirty(ext2_filsys fs)
1920 return (fs->flags & EXT2_FLAG_BB_DIRTY);
1924 * Return the group # of a block
1926 _INLINE_ dgrp_t ext2fs_group_of_blk(ext2_filsys fs, blk_t blk)
1928 return ext2fs_group_of_blk2(fs, blk);
1931 * Return the group # of an inode number
1933 _INLINE_ dgrp_t ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino)
1935 return (ino - 1) / fs->super->s_inodes_per_group;
1939 * Return the first block (inclusive) in a group
1941 _INLINE_ blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group)
1943 return (blk_t) ext2fs_group_first_block2(fs, group);
1947 * Return the last block (inclusive) in a group
1949 _INLINE_ blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group)
1951 return (blk_t) ext2fs_group_last_block2(fs, group);
1954 _INLINE_ blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
1955 struct ext2_inode *inode)
1957 return (blk_t) ext2fs_inode_data_blocks2(fs, inode);
1960 /* htree levels for ext4 */
1961 #define EXT4_HTREE_LEVEL_COMPAT 2
1962 #define EXT4_HTREE_LEVEL 3
1964 static inline unsigned int ext2_dir_htree_level(ext2_filsys fs)
1966 if (ext2fs_has_feature_largedir(fs->super))
1967 return EXT4_HTREE_LEVEL;
1969 return EXT4_HTREE_LEVEL_COMPAT;
1972 _INLINE_ int ext2fs_htree_intnode_maxrecs(ext2_filsys fs, int blocks)
1974 return blocks * ((fs->blocksize - 8) / sizeof(struct ext2_dx_entry));
1978 * This is an efficient, overflow safe way of calculating ceil((1.0 * a) / b)
1980 _INLINE_ unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b)
1984 return ((a - 1) / b) + 1;
1987 _INLINE_ __u64 ext2fs_div64_ceil(__u64 a, __u64 b)
1991 return ((a - 1) / b) + 1;
1994 _INLINE_ int ext2fs_dirent_name_len(const struct ext2_dir_entry *entry)
1996 return entry->name_len & 0xff;
1999 _INLINE_ void ext2fs_dirent_set_name_len(struct ext2_dir_entry *entry, int len)
2001 entry->name_len = (entry->name_len & 0xff00) | (len & 0xff);
2004 _INLINE_ int ext2fs_dirent_file_type(const struct ext2_dir_entry *entry)
2006 return entry->name_len >> 8;
2009 _INLINE_ void ext2fs_dirent_set_file_type(struct ext2_dir_entry *entry, int type)
2011 entry->name_len = (entry->name_len & 0xff) | (type << 8);
2014 _INLINE_ struct ext2_inode *ext2fs_inode(struct ext2_inode_large * large_inode)
2016 /* It is always safe to convert large inode to a small inode */
2017 return (struct ext2_inode *) large_inode;
2020 _INLINE_ const struct ext2_inode *
2021 ext2fs_const_inode(const struct ext2_inode_large * large_inode)
2023 /* It is always safe to convert large inode to a small inode */
2024 return (const struct ext2_inode *) large_inode;
2034 #endif /* _EXT2FS_EXT2FS_H */