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 __s32 __bitwise ext2_off_t
;
81 typedef __s64 __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>
100 * Portability help for Microsoft Visual C++
103 #define EXT2_QSORT_TYPE int __cdecl
105 #define EXT2_QSORT_TYPE int
108 typedef struct struct_ext2_filsys
*ext2_filsys
;
110 #define EXT2FS_MARK_ERROR 0
111 #define EXT2FS_UNMARK_ERROR 1
112 #define EXT2FS_TEST_ERROR 2
114 struct ext2fs_struct_generic_bitmap_base
{
119 typedef struct ext2fs_struct_generic_bitmap_base
*ext2fs_generic_bitmap
;
120 typedef struct ext2fs_struct_generic_bitmap_base
*ext2fs_inode_bitmap
;
121 typedef struct ext2fs_struct_generic_bitmap_base
*ext2fs_block_bitmap
;
123 #define EXT2_FIRST_INODE(s) EXT2_FIRST_INO(s)
127 * Badblocks list definitions
130 typedef struct ext2_struct_u32_list
*ext2_badblocks_list
;
131 typedef struct ext2_struct_u32_iterate
*ext2_badblocks_iterate
;
133 typedef struct ext2_struct_u32_list
*ext2_u32_list
;
134 typedef struct ext2_struct_u32_iterate
*ext2_u32_iterate
;
137 typedef struct ext2_struct_u32_list
*badblocks_list
;
138 typedef struct ext2_struct_u32_iterate
*badblocks_iterate
;
140 #define BADBLOCKS_FLAG_DIRTY 1
143 * ext2_dblist structure and abstractions (see dblist.c)
145 struct ext2_db_entry2
{
148 e2_blkcnt_t blockcnt
;
151 /* Ye Olde 32-bit version */
152 struct ext2_db_entry
{
158 typedef struct ext2_struct_dblist
*ext2_dblist
;
160 #define DBLIST_ABORT 1
163 * ext2_fileio definitions
166 #define EXT2_FILE_WRITE 0x0001
167 #define EXT2_FILE_CREATE 0x0002
169 #define EXT2_FILE_MASK 0x00FF
171 #define EXT2_FILE_BUF_DIRTY 0x4000
172 #define EXT2_FILE_BUF_VALID 0x2000
174 typedef struct ext2_file
*ext2_file_t
;
176 #define EXT2_SEEK_SET 0
177 #define EXT2_SEEK_CUR 1
178 #define EXT2_SEEK_END 2
181 * Flags for the ext2_filsys structure and for ext2fs_open()
183 #define EXT2_FLAG_RW 0x01
184 #define EXT2_FLAG_CHANGED 0x02
185 #define EXT2_FLAG_DIRTY 0x04
186 #define EXT2_FLAG_VALID 0x08
187 #define EXT2_FLAG_IB_DIRTY 0x10
188 #define EXT2_FLAG_BB_DIRTY 0x20
189 #define EXT2_FLAG_SWAP_BYTES 0x40
190 #define EXT2_FLAG_SWAP_BYTES_READ 0x80
191 #define EXT2_FLAG_SWAP_BYTES_WRITE 0x100
192 #define EXT2_FLAG_MASTER_SB_ONLY 0x200
193 #define EXT2_FLAG_FORCE 0x400
194 #define EXT2_FLAG_SUPER_ONLY 0x800
195 #define EXT2_FLAG_JOURNAL_DEV_OK 0x1000
196 #define EXT2_FLAG_IMAGE_FILE 0x2000
197 #define EXT2_FLAG_EXCLUSIVE 0x4000
198 #define EXT2_FLAG_SOFTSUPP_FEATURES 0x8000
199 #define EXT2_FLAG_NOFREE_ON_ERROR 0x10000
200 #define EXT2_FLAG_64BITS 0x20000
201 #define EXT2_FLAG_PRINT_PROGRESS 0x40000
202 #define EXT2_FLAG_DIRECT_IO 0x80000
203 #define EXT2_FLAG_SKIP_MMP 0x100000
204 #define EXT2_FLAG_IGNORE_CSUM_ERRORS 0x200000
205 #define EXT2_FLAG_SHARE_DUP 0x400000
206 #define EXT2_FLAG_IGNORE_SB_ERRORS 0x800000
207 #define EXT2_FLAG_BBITMAP_TAIL_PROBLEM 0x1000000
208 #define EXT2_FLAG_IBITMAP_TAIL_PROBLEM 0x2000000
211 * Special flag in the ext2 inode i_flag field that means that this is
212 * a new inode. (So that ext2_write_inode() can clear extra fields.)
214 #define EXT2_NEW_INODE_FL 0x80000000
217 * Flags for mkjournal
219 #define EXT2_MKJOURNAL_V1_SUPER 0x0000001 /* create V1 superblock (deprecated) */
220 #define EXT2_MKJOURNAL_LAZYINIT 0x0000002 /* don't zero journal inode before use*/
221 #define EXT2_MKJOURNAL_NO_MNT_CHECK 0x0000004 /* don't check mount status */
223 struct blk_alloc_ctx
;
224 struct opaque_ext2_group_desc
;
226 struct struct_ext2_filsys
{
231 struct ext2_super_block
* super
;
232 unsigned int blocksize
;
234 dgrp_t group_desc_count
;
235 unsigned long desc_blocks
;
236 struct opaque_ext2_group_desc
* group_desc
;
237 unsigned int inode_blocks_per_group
;
238 ext2fs_inode_bitmap inode_map
;
239 ext2fs_block_bitmap block_map
;
240 /* XXX FIXME-64: not 64-bit safe, but not used? */
241 errcode_t (*get_blocks
)(ext2_filsys fs
, ext2_ino_t ino
, blk_t
*blocks
);
242 errcode_t (*check_directory
)(ext2_filsys fs
, ext2_ino_t ino
);
243 errcode_t (*write_bitmaps
)(ext2_filsys fs
);
244 errcode_t (*read_inode
)(ext2_filsys fs
, ext2_ino_t ino
,
245 struct ext2_inode
*inode
);
246 errcode_t (*write_inode
)(ext2_filsys fs
, ext2_ino_t ino
,
247 struct ext2_inode
*inode
);
248 ext2_badblocks_list badblocks
;
250 __u32 stride
; /* for mke2fs */
251 struct ext2_super_block
* orig_super
;
252 struct ext2_image_hdr
* image_header
;
255 int cluster_ratio_bits
;
256 __u16 default_bitmap_type
;
259 * Reserved for future expansion
264 * Reserved for the use of the calling application.
271 struct ext2_inode_cache
*icache
;
275 * More callback functions
277 errcode_t (*get_alloc_block
)(ext2_filsys fs
, blk64_t goal
,
279 errcode_t (*get_alloc_block2
)(ext2_filsys fs
, blk64_t goal
,
280 blk64_t
*ret
, struct blk_alloc_ctx
*ctx
);
281 void (*block_alloc_stats
)(ext2_filsys fs
, blk64_t blk
, int inuse
);
284 * Buffers for Multiple mount protection(MMP) block.
291 * Time at which e2fsck last updated the MMP block.
293 long mmp_last_written
;
295 /* progress operation functions */
296 struct ext2fs_progress_ops
*progress_ops
;
298 /* Precomputed FS UUID checksum for seeding other checksums */
301 io_channel journal_io
;
304 /* New block range allocation hooks */
305 errcode_t (*new_range
)(ext2_filsys fs
, int flags
, blk64_t goal
,
306 blk64_t len
, blk64_t
*pblk
, blk64_t
*plen
);
307 void (*block_alloc_stats_range
)(ext2_filsys fs
, blk64_t blk
, blk_t num
,
310 /* hashmap for SHA of data blocks */
311 struct ext2fs_hashmap
* block_sha_map
;
313 const struct ext2fs_nls_table
*encoding
;
316 #if EXT2_FLAT_INCLUDES
317 #include "e2_bitops.h"
319 #include <ext2fs/bitops.h>
323 * 64-bit bitmap backend types
325 #define EXT2FS_BMAP64_BITARRAY 1
326 #define EXT2FS_BMAP64_RBTREE 2
327 #define EXT2FS_BMAP64_AUTODIR 3
330 * Return flags for the block iterator functions
332 #define BLOCK_CHANGED 1
333 #define BLOCK_ABORT 2
334 #define BLOCK_ERROR 4
335 #define BLOCK_INLINE_DATA_CHANGED 8
338 * Block interate flags
340 * BLOCK_FLAG_APPEND, or BLOCK_FLAG_HOLE, indicates that the interator
341 * function should be called on blocks where the block number is zero.
342 * This is used by ext2fs_expand_dir() to be able to add a new block
343 * to an inode. It can also be used for programs that want to be able
344 * to deal with files that contain "holes".
346 * BLOCK_FLAG_DEPTH_TRAVERSE indicates that the iterator function for
347 * the indirect, doubly indirect, etc. blocks should be called after
348 * all of the blocks contained in the indirect blocks are processed.
349 * This is useful if you are going to be deallocating blocks from an
352 * BLOCK_FLAG_DATA_ONLY indicates that the iterator function should be
353 * called for data blocks only.
355 * BLOCK_FLAG_READ_ONLY is a promise by the caller that it will not
356 * modify returned block number.
358 * BLOCK_FLAG_NO_LARGE is for internal use only. It informs
359 * ext2fs_block_iterate2 that large files won't be accepted.
361 #define BLOCK_FLAG_APPEND 1
362 #define BLOCK_FLAG_HOLE 1
363 #define BLOCK_FLAG_DEPTH_TRAVERSE 2
364 #define BLOCK_FLAG_DATA_ONLY 4
365 #define BLOCK_FLAG_READ_ONLY 8
367 #define BLOCK_FLAG_NO_LARGE 0x1000
370 * Magic "block count" return values for the block iterator function.
372 #define BLOCK_COUNT_IND (-1)
373 #define BLOCK_COUNT_DIND (-2)
374 #define BLOCK_COUNT_TIND (-3)
375 #define BLOCK_COUNT_TRANSLATOR (-4)
377 #define BLOCK_ALLOC_UNKNOWN 0
378 #define BLOCK_ALLOC_DATA 1
379 #define BLOCK_ALLOC_METADATA 2
381 struct blk_alloc_ctx
{
383 struct ext2_inode
*inode
;
390 * Flags for ext2fs_move_blocks
392 #define EXT2_BMOVE_GET_DBLIST 0x0001
393 #define EXT2_BMOVE_DEBUG 0x0002
397 * Generic (non-filesystem layout specific) extents structure
400 #define EXT2_EXTENT_FLAGS_LEAF 0x0001
401 #define EXT2_EXTENT_FLAGS_UNINIT 0x0002
402 #define EXT2_EXTENT_FLAGS_SECOND_VISIT 0x0004
404 struct ext2fs_extent
{
405 blk64_t e_pblk
; /* first physical block */
406 blk64_t e_lblk
; /* first logical block extent covers */
407 __u32 e_len
; /* number of blocks covered by extent */
408 __u32 e_flags
; /* extent flags */
411 typedef struct ext2_extent_handle
*ext2_extent_handle_t
;
412 typedef struct ext2_extent_path
*ext2_extent_path_t
;
415 * Flags used by ext2fs_extent_get()
417 #define EXT2_EXTENT_CURRENT 0x0000
418 #define EXT2_EXTENT_MOVE_MASK 0x000F
419 #define EXT2_EXTENT_ROOT 0x0001
420 #define EXT2_EXTENT_LAST_LEAF 0x0002
421 #define EXT2_EXTENT_FIRST_SIB 0x0003
422 #define EXT2_EXTENT_LAST_SIB 0x0004
423 #define EXT2_EXTENT_NEXT_SIB 0x0005
424 #define EXT2_EXTENT_PREV_SIB 0x0006
425 #define EXT2_EXTENT_NEXT_LEAF 0x0007
426 #define EXT2_EXTENT_PREV_LEAF 0x0008
427 #define EXT2_EXTENT_NEXT 0x0009
428 #define EXT2_EXTENT_PREV 0x000A
429 #define EXT2_EXTENT_UP 0x000B
430 #define EXT2_EXTENT_DOWN 0x000C
431 #define EXT2_EXTENT_DOWN_AND_LAST 0x000D
434 * Flags used by ext2fs_extent_insert()
436 #define EXT2_EXTENT_INSERT_AFTER 0x0001 /* insert after handle loc'n */
437 #define EXT2_EXTENT_INSERT_NOSPLIT 0x0002 /* insert may not cause split */
440 * Flags used by ext2fs_extent_delete()
442 #define EXT2_EXTENT_DELETE_KEEP_EMPTY 0x001 /* keep node if last extent gone */
445 * Flags used by ext2fs_extent_set_bmap()
447 #define EXT2_EXTENT_SET_BMAP_UNINIT 0x0001
450 * Data structure returned by ext2fs_extent_get_info()
452 struct ext2_extent_info
{
462 __u32 max_uninit_len
;
466 * Flags for directory block reading and writing functions
468 #define EXT2_DIRBLOCK_V2_STRUCT 0x0001
471 * Return flags for the directory iterator functions
473 #define DIRENT_CHANGED 1
474 #define DIRENT_ABORT 2
475 #define DIRENT_ERROR 3
478 * Directory iterator flags
481 #define DIRENT_FLAG_INCLUDE_EMPTY 1
482 #define DIRENT_FLAG_INCLUDE_REMOVED 2
483 #define DIRENT_FLAG_INCLUDE_CSUM 4
484 #define DIRENT_FLAG_INCLUDE_INLINE_DATA 8
486 #define DIRENT_DOT_FILE 1
487 #define DIRENT_DOT_DOT_FILE 2
488 #define DIRENT_OTHER_FILE 3
489 #define DIRENT_DELETED_FILE 4
490 #define DIRENT_CHECKSUM 5
493 * Inode scan definitions
495 typedef struct ext2_struct_inode_scan
*ext2_inode_scan
;
500 #define EXT2_SF_CHK_BADBLOCKS 0x0001
501 #define EXT2_SF_BAD_INODE_BLK 0x0002
502 #define EXT2_SF_BAD_EXTRA_BYTES 0x0004
503 #define EXT2_SF_SKIP_MISSING_ITABLE 0x0008
504 #define EXT2_SF_DO_LAZY 0x0010
505 #define EXT2_SF_WARN_GARBAGE_INODES 0x0020
508 * ext2fs_check_if_mounted flags
510 #define EXT2_MF_MOUNTED 1
511 #define EXT2_MF_ISROOT 2
512 #define EXT2_MF_READONLY 4
513 #define EXT2_MF_SWAP 8
514 #define EXT2_MF_BUSY 16
517 * Ext2/linux mode flags. We define them here so that we don't need
518 * to depend on the OS's sys/stat.h, since we may be compiling on a
521 #define LINUX_S_IFMT 00170000
522 #define LINUX_S_IFSOCK 0140000
523 #define LINUX_S_IFLNK 0120000
524 #define LINUX_S_IFREG 0100000
525 #define LINUX_S_IFBLK 0060000
526 #define LINUX_S_IFDIR 0040000
527 #define LINUX_S_IFCHR 0020000
528 #define LINUX_S_IFIFO 0010000
529 #define LINUX_S_ISUID 0004000
530 #define LINUX_S_ISGID 0002000
531 #define LINUX_S_ISVTX 0001000
533 #define LINUX_S_IRWXU 00700
534 #define LINUX_S_IRUSR 00400
535 #define LINUX_S_IWUSR 00200
536 #define LINUX_S_IXUSR 00100
538 #define LINUX_S_IRWXG 00070
539 #define LINUX_S_IRGRP 00040
540 #define LINUX_S_IWGRP 00020
541 #define LINUX_S_IXGRP 00010
543 #define LINUX_S_IRWXO 00007
544 #define LINUX_S_IROTH 00004
545 #define LINUX_S_IWOTH 00002
546 #define LINUX_S_IXOTH 00001
548 #define LINUX_S_ISLNK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFLNK)
549 #define LINUX_S_ISREG(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFREG)
550 #define LINUX_S_ISDIR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFDIR)
551 #define LINUX_S_ISCHR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFCHR)
552 #define LINUX_S_ISBLK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFBLK)
553 #define LINUX_S_ISFIFO(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFIFO)
554 #define LINUX_S_ISSOCK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFSOCK)
557 * ext2 size of an inode
559 #define EXT2_I_SIZE(i) ((i)->i_size | ((__u64) (i)->i_size_high << 32))
562 * ext2_icount_t abstraction
564 #define EXT2_ICOUNT_OPT_INCREMENT 0x01
565 #define EXT2_ICOUNT_OPT_FULLMAP 0x02
567 typedef struct ext2_icount
*ext2_icount_t
;
570 * Flags for ext2fs_bmap
572 #define BMAP_ALLOC 0x0001
573 #define BMAP_SET 0x0002
574 #define BMAP_UNINIT 0x0004
575 #define BMAP_ZERO 0x0008
578 * Returned flags from ext2fs_bmap
580 #define BMAP_RET_UNINIT 0x0001
583 * Flags for ext2fs_read_inode2
585 #define READ_INODE_NOCSUM 0x0001
588 * Flags for ext2fs_write_inode2
590 #define WRITE_INODE_NOCSUM 0x0001
593 * Flags for imager.c functions
595 #define IMAGER_FLAG_INODEMAP 1
596 #define IMAGER_FLAG_SPARSEWRITE 2
599 * For checking structure magic numbers...
602 #define EXT2_CHECK_MAGIC(struct, code) \
603 if ((struct)->magic != (code)) return (code)
606 * Features supported by this version of the library
608 #define EXT2_LIB_FEATURE_COMPAT_SUPP (EXT2_FEATURE_COMPAT_DIR_PREALLOC|\
609 EXT2_FEATURE_COMPAT_IMAGIC_INODES|\
610 EXT3_FEATURE_COMPAT_HAS_JOURNAL|\
611 EXT2_FEATURE_COMPAT_RESIZE_INODE|\
612 EXT2_FEATURE_COMPAT_DIR_INDEX|\
613 EXT2_FEATURE_COMPAT_EXT_ATTR|\
614 EXT4_FEATURE_COMPAT_SPARSE_SUPER2|\
615 EXT4_FEATURE_COMPAT_FAST_COMMIT|\
616 EXT4_FEATURE_COMPAT_STABLE_INODES)
619 #define EXT4_LIB_INCOMPAT_MMP EXT4_FEATURE_INCOMPAT_MMP
621 #define EXT4_LIB_INCOMPAT_MMP (0)
624 #define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\
625 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\
626 EXT2_FEATURE_INCOMPAT_META_BG|\
627 EXT3_FEATURE_INCOMPAT_RECOVER|\
628 EXT3_FEATURE_INCOMPAT_EXTENTS|\
629 EXT4_FEATURE_INCOMPAT_FLEX_BG|\
630 EXT4_FEATURE_INCOMPAT_EA_INODE|\
631 EXT4_LIB_INCOMPAT_MMP|\
632 EXT4_FEATURE_INCOMPAT_64BIT|\
633 EXT4_FEATURE_INCOMPAT_INLINE_DATA|\
634 EXT4_FEATURE_INCOMPAT_ENCRYPT|\
635 EXT4_FEATURE_INCOMPAT_CASEFOLD|\
636 EXT4_FEATURE_INCOMPAT_CSUM_SEED|\
637 EXT4_FEATURE_INCOMPAT_LARGEDIR)
639 #define EXT2_LIB_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|\
640 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|\
641 EXT2_FEATURE_RO_COMPAT_LARGE_FILE|\
642 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|\
643 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|\
644 EXT4_FEATURE_RO_COMPAT_GDT_CSUM|\
645 EXT4_FEATURE_RO_COMPAT_BIGALLOC|\
646 EXT4_FEATURE_RO_COMPAT_QUOTA|\
647 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM|\
648 EXT4_FEATURE_RO_COMPAT_READONLY |\
649 EXT4_FEATURE_RO_COMPAT_PROJECT |\
650 EXT4_FEATURE_RO_COMPAT_SHARED_BLOCKS |\
651 EXT4_FEATURE_RO_COMPAT_VERITY)
654 * These features are only allowed if EXT2_FLAG_SOFTSUPP_FEATURES is passed
657 #define EXT2_LIB_SOFTSUPP_INCOMPAT (0)
658 #define EXT2_LIB_SOFTSUPP_RO_COMPAT (EXT4_FEATURE_RO_COMPAT_REPLICA)
661 /* Translate a block number to a cluster number */
662 #define EXT2FS_CLUSTER_RATIO(fs) (1 << (fs)->cluster_ratio_bits)
663 #define EXT2FS_CLUSTER_MASK(fs) (EXT2FS_CLUSTER_RATIO(fs) - 1)
664 #define EXT2FS_B2C(fs, blk) ((blk) >> (fs)->cluster_ratio_bits)
665 /* Translate a cluster number to a block number */
666 #define EXT2FS_C2B(fs, cluster) ((cluster) << (fs)->cluster_ratio_bits)
667 /* Translate # of blks to # of clusters */
668 #define EXT2FS_NUM_B2C(fs, blks) (((blks) + EXT2FS_CLUSTER_MASK(fs)) >> \
669 (fs)->cluster_ratio_bits)
671 #if defined(HAVE_FSTAT64) && !defined(__OSX_AVAILABLE_BUT_DEPRECATED)
672 typedef struct stat64 ext2fs_struct_stat
;
674 typedef struct stat ext2fs_struct_stat
;
678 * For ext2fs_close2() and ext2fs_flush2(), this flag allows you to
679 * avoid the fsync call.
681 #define EXT2_FLAG_FLUSH_NO_SYNC 1
684 * Modify and iterate extended attributes
686 struct ext2_xattr_handle
;
687 #define XATTR_ABORT 1
688 #define XATTR_CHANGED 2
691 * function prototypes
693 static inline int ext2fs_has_group_desc_csum(ext2_filsys fs
)
695 return ext2fs_has_feature_metadata_csum(fs
->super
) ||
696 ext2fs_has_feature_gdt_csum(fs
->super
);
699 /* The LARGE_FILE feature should be set if we have stored files 2GB+ in size */
700 static inline int ext2fs_needs_large_file_feature(unsigned long long file_size
)
702 return file_size
>= 0x80000000ULL
;
706 extern void ext2fs_clear_block_uninit(ext2_filsys fs
, dgrp_t group
);
707 extern errcode_t
ext2fs_new_inode(ext2_filsys fs
, ext2_ino_t dir
, int mode
,
708 ext2fs_inode_bitmap map
, ext2_ino_t
*ret
);
709 extern errcode_t
ext2fs_new_block(ext2_filsys fs
, blk_t goal
,
710 ext2fs_block_bitmap map
, blk_t
*ret
);
711 extern errcode_t
ext2fs_new_block2(ext2_filsys fs
, blk64_t goal
,
712 ext2fs_block_bitmap map
, blk64_t
*ret
);
713 extern errcode_t
ext2fs_new_block3(ext2_filsys fs
, blk64_t goal
,
714 ext2fs_block_bitmap map
, blk64_t
*ret
,
715 struct blk_alloc_ctx
*ctx
);
716 extern errcode_t
ext2fs_get_free_blocks(ext2_filsys fs
, blk_t start
,
717 blk_t finish
, int num
,
718 ext2fs_block_bitmap map
,
720 extern errcode_t
ext2fs_get_free_blocks2(ext2_filsys fs
, blk64_t start
,
721 blk64_t finish
, int num
,
722 ext2fs_block_bitmap map
,
724 extern errcode_t
ext2fs_alloc_block(ext2_filsys fs
, blk_t goal
,
725 char *block_buf
, blk_t
*ret
);
726 extern errcode_t
ext2fs_alloc_block2(ext2_filsys fs
, blk64_t goal
,
727 char *block_buf
, blk64_t
*ret
);
728 extern errcode_t
ext2fs_alloc_block3(ext2_filsys fs
, blk64_t goal
,
729 char *block_buf
, blk64_t
*ret
,
730 struct blk_alloc_ctx
*ctx
);
732 extern void ext2fs_set_alloc_block_callback(ext2_filsys fs
,
733 errcode_t (*func
)(ext2_filsys fs
,
736 errcode_t (**old
)(ext2_filsys fs
,
739 blk64_t
ext2fs_find_inode_goal(ext2_filsys fs
, ext2_ino_t ino
,
740 struct ext2_inode
*inode
, blk64_t lblk
);
741 extern void ext2fs_set_new_range_callback(ext2_filsys fs
,
742 errcode_t (*func
)(ext2_filsys fs
, int flags
, blk64_t goal
,
743 blk64_t len
, blk64_t
*pblk
, blk64_t
*plen
),
744 errcode_t (**old
)(ext2_filsys fs
, int flags
, blk64_t goal
,
745 blk64_t len
, blk64_t
*pblk
, blk64_t
*plen
));
746 extern void ext2fs_set_block_alloc_stats_range_callback(ext2_filsys fs
,
747 void (*func
)(ext2_filsys fs
, blk64_t blk
,
748 blk_t num
, int inuse
),
749 void (**old
)(ext2_filsys fs
, blk64_t blk
,
750 blk_t num
, int inuse
));
751 #define EXT2_NEWRANGE_FIXED_GOAL (0x1)
752 #define EXT2_NEWRANGE_MIN_LENGTH (0x2)
753 #define EXT2_NEWRANGE_ALL_FLAGS (0x3)
754 errcode_t
ext2fs_new_range(ext2_filsys fs
, int flags
, blk64_t goal
,
755 blk64_t len
, ext2fs_block_bitmap map
, blk64_t
*pblk
,
757 #define EXT2_ALLOCRANGE_FIXED_GOAL (0x1)
758 #define EXT2_ALLOCRANGE_ZERO_BLOCKS (0x2)
759 #define EXT2_ALLOCRANGE_ALL_FLAGS (0x3)
760 errcode_t
ext2fs_alloc_range(ext2_filsys fs
, int flags
, blk64_t goal
,
761 blk_t len
, blk64_t
*ret
);
764 extern int ext2fs_reserve_super_and_bgd(ext2_filsys fs
,
766 ext2fs_block_bitmap bmap
);
767 extern void ext2fs_set_block_alloc_stats_callback(ext2_filsys fs
,
768 void (*func
)(ext2_filsys fs
,
771 void (**old
)(ext2_filsys fs
,
776 void ext2fs_inode_alloc_stats(ext2_filsys fs
, ext2_ino_t ino
, int inuse
);
777 void ext2fs_inode_alloc_stats2(ext2_filsys fs
, ext2_ino_t ino
,
778 int inuse
, int isdir
);
779 void ext2fs_block_alloc_stats(ext2_filsys fs
, blk_t blk
, int inuse
);
780 void ext2fs_block_alloc_stats2(ext2_filsys fs
, blk64_t blk
, int inuse
);
781 void ext2fs_block_alloc_stats_range(ext2_filsys fs
, blk64_t blk
,
782 blk_t num
, int inuse
);
785 extern errcode_t
ext2fs_allocate_tables(ext2_filsys fs
);
786 extern errcode_t
ext2fs_allocate_group_table(ext2_filsys fs
, dgrp_t group
,
787 ext2fs_block_bitmap bmap
);
790 extern errcode_t
ext2fs_u32_list_create(ext2_u32_list
*ret
, int size
);
791 extern errcode_t
ext2fs_u32_list_add(ext2_u32_list bb
, __u32 blk
);
792 extern int ext2fs_u32_list_find(ext2_u32_list bb
, __u32 blk
);
793 extern int ext2fs_u32_list_test(ext2_u32_list bb
, blk_t blk
);
794 extern errcode_t
ext2fs_u32_list_iterate_begin(ext2_u32_list bb
,
795 ext2_u32_iterate
*ret
);
796 extern int ext2fs_u32_list_iterate(ext2_u32_iterate iter
, blk_t
*blk
);
797 extern void ext2fs_u32_list_iterate_end(ext2_u32_iterate iter
);
798 extern errcode_t
ext2fs_u32_copy(ext2_u32_list src
, ext2_u32_list
*dest
);
799 extern int ext2fs_u32_list_equal(ext2_u32_list bb1
, ext2_u32_list bb2
);
801 extern errcode_t
ext2fs_badblocks_list_create(ext2_badblocks_list
*ret
,
803 extern errcode_t
ext2fs_badblocks_list_add(ext2_badblocks_list bb
,
805 extern int ext2fs_badblocks_list_test(ext2_badblocks_list bb
,
807 extern int ext2fs_u32_list_del(ext2_u32_list bb
, __u32 blk
);
808 extern void ext2fs_badblocks_list_del(ext2_u32_list bb
, __u32 blk
);
810 ext2fs_badblocks_list_iterate_begin(ext2_badblocks_list bb
,
811 ext2_badblocks_iterate
*ret
);
812 extern int ext2fs_badblocks_list_iterate(ext2_badblocks_iterate iter
,
814 extern void ext2fs_badblocks_list_iterate_end(ext2_badblocks_iterate iter
);
815 extern errcode_t
ext2fs_badblocks_copy(ext2_badblocks_list src
,
816 ext2_badblocks_list
*dest
);
817 extern int ext2fs_badblocks_equal(ext2_badblocks_list bb1
,
818 ext2_badblocks_list bb2
);
819 extern int ext2fs_u32_list_count(ext2_u32_list bb
);
822 extern errcode_t
badblocks_list_create(badblocks_list
*ret
, int size
);
823 extern errcode_t
badblocks_list_add(badblocks_list bb
, blk_t blk
);
824 extern int badblocks_list_test(badblocks_list bb
, blk_t blk
);
825 extern errcode_t
badblocks_list_iterate_begin(badblocks_list bb
,
826 badblocks_iterate
*ret
);
827 extern int badblocks_list_iterate(badblocks_iterate iter
, blk_t
*blk
);
828 extern void badblocks_list_iterate_end(badblocks_iterate iter
);
829 extern void badblocks_list_free(badblocks_list bb
);
832 extern errcode_t
ext2fs_update_bb_inode(ext2_filsys fs
,
833 ext2_badblocks_list bb_list
);
836 extern void ext2fs_free_block_bitmap(ext2fs_block_bitmap bitmap
);
837 extern void ext2fs_free_inode_bitmap(ext2fs_inode_bitmap bitmap
);
838 extern errcode_t
ext2fs_copy_bitmap(ext2fs_generic_bitmap src
,
839 ext2fs_generic_bitmap
*dest
);
840 extern errcode_t
ext2fs_write_inode_bitmap(ext2_filsys fs
);
841 extern errcode_t
ext2fs_write_block_bitmap (ext2_filsys fs
);
842 extern errcode_t
ext2fs_read_inode_bitmap (ext2_filsys fs
);
843 extern errcode_t
ext2fs_read_block_bitmap(ext2_filsys fs
);
844 extern errcode_t
ext2fs_allocate_block_bitmap(ext2_filsys fs
,
846 ext2fs_block_bitmap
*ret
);
847 extern errcode_t
ext2fs_allocate_subcluster_bitmap(ext2_filsys fs
,
849 ext2fs_block_bitmap
*ret
);
850 extern int ext2fs_get_bitmap_granularity(ext2fs_block_bitmap bitmap
);
851 extern errcode_t
ext2fs_allocate_inode_bitmap(ext2_filsys fs
,
853 ext2fs_inode_bitmap
*ret
);
854 extern errcode_t
ext2fs_fudge_inode_bitmap_end(ext2fs_inode_bitmap bitmap
,
855 ext2_ino_t end
, ext2_ino_t
*oend
);
856 extern errcode_t
ext2fs_fudge_block_bitmap_end(ext2fs_block_bitmap bitmap
,
857 blk_t end
, blk_t
*oend
);
858 extern errcode_t
ext2fs_fudge_block_bitmap_end2(ext2fs_block_bitmap bitmap
,
859 blk64_t end
, blk64_t
*oend
);
860 extern void ext2fs_clear_inode_bitmap(ext2fs_inode_bitmap bitmap
);
861 extern void ext2fs_clear_block_bitmap(ext2fs_block_bitmap bitmap
);
862 extern errcode_t
ext2fs_read_bitmaps(ext2_filsys fs
);
863 extern errcode_t
ext2fs_write_bitmaps(ext2_filsys fs
);
864 extern errcode_t
ext2fs_resize_inode_bitmap(__u32 new_end
, __u32 new_real_end
,
865 ext2fs_inode_bitmap bmap
);
866 extern errcode_t
ext2fs_resize_inode_bitmap2(__u64 new_end
,
868 ext2fs_inode_bitmap bmap
);
869 extern errcode_t
ext2fs_resize_block_bitmap(__u32 new_end
, __u32 new_real_end
,
870 ext2fs_block_bitmap bmap
);
871 extern errcode_t
ext2fs_resize_block_bitmap2(__u64 new_end
,
873 ext2fs_block_bitmap bmap
);
874 extern errcode_t
ext2fs_compare_block_bitmap(ext2fs_block_bitmap bm1
,
875 ext2fs_block_bitmap bm2
);
876 extern errcode_t
ext2fs_compare_inode_bitmap(ext2fs_inode_bitmap bm1
,
877 ext2fs_inode_bitmap bm2
);
878 extern errcode_t
ext2fs_set_inode_bitmap_range(ext2fs_inode_bitmap bmap
,
879 ext2_ino_t start
, unsigned int num
,
881 extern errcode_t
ext2fs_set_inode_bitmap_range2(ext2fs_inode_bitmap bmap
,
882 __u64 start
, size_t num
,
884 extern errcode_t
ext2fs_get_inode_bitmap_range(ext2fs_inode_bitmap bmap
,
885 ext2_ino_t start
, unsigned int num
,
887 extern errcode_t
ext2fs_get_inode_bitmap_range2(ext2fs_inode_bitmap bmap
,
888 __u64 start
, size_t num
,
890 extern errcode_t
ext2fs_set_block_bitmap_range(ext2fs_block_bitmap bmap
,
891 blk_t start
, unsigned int num
,
893 extern errcode_t
ext2fs_set_block_bitmap_range2(ext2fs_block_bitmap bmap
,
894 blk64_t start
, size_t num
,
896 extern errcode_t
ext2fs_get_block_bitmap_range(ext2fs_block_bitmap bmap
,
897 blk_t start
, unsigned int num
,
899 extern errcode_t
ext2fs_get_block_bitmap_range2(ext2fs_block_bitmap bmap
,
900 blk64_t start
, size_t num
,
904 extern __u32
ext2fs_inode_bitmap_checksum(ext2_filsys fs
, dgrp_t group
);
905 extern __u32
ext2fs_block_bitmap_checksum(ext2_filsys fs
, dgrp_t group
);
906 extern dgrp_t
ext2fs_group_of_blk2(ext2_filsys fs
, blk64_t
);
907 extern blk64_t
ext2fs_group_first_block2(ext2_filsys fs
, dgrp_t group
);
908 extern blk64_t
ext2fs_group_last_block2(ext2_filsys fs
, dgrp_t group
);
909 extern int ext2fs_group_blocks_count(ext2_filsys fs
, dgrp_t group
);
910 extern blk64_t
ext2fs_inode_data_blocks2(ext2_filsys fs
,
911 struct ext2_inode
*inode
);
912 extern blk64_t
ext2fs_inode_i_blocks(ext2_filsys fs
,
913 struct ext2_inode
*inode
);
914 extern blk64_t
ext2fs_get_stat_i_blocks(ext2_filsys fs
,
915 struct ext2_inode
*inode
);
916 extern blk64_t
ext2fs_blocks_count(struct ext2_super_block
*super
);
917 extern void ext2fs_blocks_count_set(struct ext2_super_block
*super
,
919 extern void ext2fs_blocks_count_add(struct ext2_super_block
*super
,
921 extern blk64_t
ext2fs_r_blocks_count(struct ext2_super_block
*super
);
922 extern void ext2fs_r_blocks_count_set(struct ext2_super_block
*super
,
924 extern void ext2fs_r_blocks_count_add(struct ext2_super_block
*super
,
926 extern blk64_t
ext2fs_free_blocks_count(struct ext2_super_block
*super
);
927 extern void ext2fs_free_blocks_count_set(struct ext2_super_block
*super
,
929 extern void ext2fs_free_blocks_count_add(struct ext2_super_block
*super
,
931 /* Block group descriptor accessor functions */
932 extern struct ext2_group_desc
*ext2fs_group_desc(ext2_filsys fs
,
933 struct opaque_ext2_group_desc
*gdp
,
935 extern blk64_t
ext2fs_block_bitmap_csum(ext2_filsys fs
, dgrp_t group
);
936 extern blk64_t
ext2fs_block_bitmap_loc(ext2_filsys fs
, dgrp_t group
);
937 extern void ext2fs_block_bitmap_loc_set(ext2_filsys fs
, dgrp_t group
,
939 extern __u32
ext2fs_inode_bitmap_csum(ext2_filsys fs
, dgrp_t group
);
940 extern blk64_t
ext2fs_inode_bitmap_loc(ext2_filsys fs
, dgrp_t group
);
941 extern void ext2fs_inode_bitmap_loc_set(ext2_filsys fs
, dgrp_t group
,
943 extern blk64_t
ext2fs_inode_table_loc(ext2_filsys fs
, dgrp_t group
);
944 extern void ext2fs_inode_table_loc_set(ext2_filsys fs
, dgrp_t group
,
946 extern __u32
ext2fs_bg_free_blocks_count(ext2_filsys fs
, dgrp_t group
);
947 extern void ext2fs_bg_free_blocks_count_set(ext2_filsys fs
, dgrp_t group
,
949 extern __u32
ext2fs_bg_free_inodes_count(ext2_filsys fs
, dgrp_t group
);
950 extern void ext2fs_bg_free_inodes_count_set(ext2_filsys fs
, dgrp_t group
,
952 extern __u32
ext2fs_bg_used_dirs_count(ext2_filsys fs
, dgrp_t group
);
953 extern void ext2fs_bg_used_dirs_count_set(ext2_filsys fs
, dgrp_t group
,
955 extern __u32
ext2fs_bg_itable_unused(ext2_filsys fs
, dgrp_t group
);
956 extern void ext2fs_bg_itable_unused_set(ext2_filsys fs
, dgrp_t group
,
958 extern __u16
ext2fs_bg_flags(ext2_filsys fs
, dgrp_t group
);
959 extern void ext2fs_bg_flags_zap(ext2_filsys fs
, dgrp_t group
);
960 extern int ext2fs_bg_flags_test(ext2_filsys fs
, dgrp_t group
, __u16 bg_flag
);
961 extern void ext2fs_bg_flags_set(ext2_filsys fs
, dgrp_t group
, __u16 bg_flags
);
962 extern void ext2fs_bg_flags_clear(ext2_filsys fs
, dgrp_t group
, __u16 bg_flags
);
963 extern __u16
ext2fs_bg_checksum(ext2_filsys fs
, dgrp_t group
);
964 extern void ext2fs_bg_checksum_set(ext2_filsys fs
, dgrp_t group
, __u16 checksum
);
965 extern blk64_t
ext2fs_file_acl_block(ext2_filsys fs
,
966 const struct ext2_inode
*inode
);
967 extern void ext2fs_file_acl_block_set(ext2_filsys fs
,
968 struct ext2_inode
*inode
, blk64_t blk
);
969 extern errcode_t
ext2fs_inode_size_set(ext2_filsys fs
, struct ext2_inode
*inode
,
973 extern errcode_t
ext2fs_block_iterate(ext2_filsys fs
,
977 int (*func
)(ext2_filsys fs
,
982 errcode_t
ext2fs_block_iterate2(ext2_filsys fs
,
986 int (*func
)(ext2_filsys fs
,
988 e2_blkcnt_t blockcnt
,
993 errcode_t
ext2fs_block_iterate3(ext2_filsys fs
,
997 int (*func
)(ext2_filsys fs
,
999 e2_blkcnt_t blockcnt
,
1006 extern errcode_t
ext2fs_bmap(ext2_filsys fs
, ext2_ino_t ino
,
1007 struct ext2_inode
*inode
,
1008 char *block_buf
, int bmap_flags
,
1009 blk_t block
, blk_t
*phys_blk
);
1010 extern errcode_t
ext2fs_bmap2(ext2_filsys fs
, ext2_ino_t ino
,
1011 struct ext2_inode
*inode
,
1012 char *block_buf
, int bmap_flags
, blk64_t block
,
1013 int *ret_flags
, blk64_t
*phys_blk
);
1014 errcode_t
ext2fs_map_cluster_block(ext2_filsys fs
, ext2_ino_t ino
,
1015 struct ext2_inode
*inode
, blk64_t lblk
,
1020 extern errcode_t
ext2fs_move_blocks(ext2_filsys fs
,
1021 ext2fs_block_bitmap reserve
,
1022 ext2fs_block_bitmap alloc_map
,
1027 extern errcode_t
ext2fs_check_desc(ext2_filsys fs
);
1030 extern errcode_t
ext2fs_close(ext2_filsys fs
);
1031 extern errcode_t
ext2fs_close2(ext2_filsys fs
, int flags
);
1032 extern errcode_t
ext2fs_close_free(ext2_filsys
*fs
);
1033 extern errcode_t
ext2fs_flush(ext2_filsys fs
);
1034 extern errcode_t
ext2fs_flush2(ext2_filsys fs
, int flags
);
1035 extern int ext2fs_bg_has_super(ext2_filsys fs
, dgrp_t group_block
);
1036 extern errcode_t
ext2fs_super_and_bgd_loc2(ext2_filsys fs
,
1038 blk64_t
*ret_super_blk
,
1039 blk64_t
*ret_old_desc_blk
,
1040 blk64_t
*ret_new_desc_blk
,
1041 blk_t
*ret_used_blks
);
1042 extern int ext2fs_super_and_bgd_loc(ext2_filsys fs
,
1044 blk_t
*ret_super_blk
,
1045 blk_t
*ret_old_desc_blk
,
1046 blk_t
*ret_new_desc_blk
,
1048 extern void ext2fs_update_dynamic_rev(ext2_filsys fs
);
1051 extern __u32
ext2fs_crc32_be(__u32 crc
, unsigned char const *p
, size_t len
);
1052 extern __u32
ext2fs_crc32c_le(__u32 crc
, unsigned char const *p
, size_t len
);
1055 extern void ext2fs_init_csum_seed(ext2_filsys fs
);
1056 extern errcode_t
ext2fs_mmp_csum_set(ext2_filsys fs
, struct mmp_struct
*mmp
);
1057 extern int ext2fs_mmp_csum_verify(ext2_filsys
, struct mmp_struct
*mmp
);
1058 extern int ext2fs_verify_csum_type(ext2_filsys fs
, struct ext2_super_block
*sb
);
1059 extern errcode_t
ext2fs_superblock_csum_set(ext2_filsys fs
,
1060 struct ext2_super_block
*sb
);
1061 extern int ext2fs_superblock_csum_verify(ext2_filsys fs
,
1062 struct ext2_super_block
*sb
);
1063 extern errcode_t
ext2fs_ext_attr_block_csum_set(ext2_filsys fs
,
1064 ext2_ino_t inum
, blk64_t block
,
1065 struct ext2_ext_attr_header
*hdr
);
1066 extern int ext2fs_ext_attr_block_csum_verify(ext2_filsys fs
, ext2_ino_t inum
,
1068 struct ext2_ext_attr_header
*hdr
);
1069 #define EXT2_DIRENT_TAIL(block, blocksize) \
1070 ((struct ext2_dir_entry_tail *)(((char *)(block)) + \
1071 (blocksize) - sizeof(struct ext2_dir_entry_tail)))
1073 extern void ext2fs_initialize_dirent_tail(ext2_filsys fs
,
1074 struct ext2_dir_entry_tail
*t
);
1075 extern int ext2fs_dirent_has_tail(ext2_filsys fs
,
1076 struct ext2_dir_entry
*dirent
);
1077 extern int ext2fs_dirent_csum_verify(ext2_filsys fs
, ext2_ino_t inum
,
1078 struct ext2_dir_entry
*dirent
);
1079 extern int ext2fs_dir_block_csum_verify(ext2_filsys fs
, ext2_ino_t inum
,
1080 struct ext2_dir_entry
*dirent
);
1081 extern errcode_t
ext2fs_dir_block_csum_set(ext2_filsys fs
, ext2_ino_t inum
,
1082 struct ext2_dir_entry
*dirent
);
1083 extern errcode_t
ext2fs_get_dx_countlimit(ext2_filsys fs
,
1084 struct ext2_dir_entry
*dirent
,
1085 struct ext2_dx_countlimit
**cc
,
1087 extern errcode_t
ext2fs_dx_csum(ext2_filsys fs
, ext2_ino_t inum
,
1088 struct ext2_dir_entry
*dirent
,
1089 __u32
*crc
, struct ext2_dx_tail
**ret_t
);
1090 extern errcode_t
ext2fs_extent_block_csum_set(ext2_filsys fs
,
1092 struct ext3_extent_header
*eh
);
1093 extern int ext2fs_extent_block_csum_verify(ext2_filsys fs
,
1095 struct ext3_extent_header
*eh
);
1096 extern errcode_t
ext2fs_block_bitmap_csum_set(ext2_filsys fs
, dgrp_t group
,
1097 char *bitmap
, int size
);
1098 extern int ext2fs_block_bitmap_csum_verify(ext2_filsys fs
, dgrp_t group
,
1099 char *bitmap
, int size
);
1100 extern errcode_t
ext2fs_inode_bitmap_csum_set(ext2_filsys fs
, dgrp_t group
,
1101 char *bitmap
, int size
);
1102 extern int ext2fs_inode_bitmap_csum_verify(ext2_filsys fs
, dgrp_t group
,
1103 char *bitmap
, int size
);
1104 extern errcode_t
ext2fs_inode_csum_set(ext2_filsys fs
, ext2_ino_t inum
,
1105 struct ext2_inode_large
*inode
);
1106 extern int ext2fs_inode_csum_verify(ext2_filsys fs
, ext2_ino_t inum
,
1107 struct ext2_inode_large
*inode
);
1108 extern void ext2fs_group_desc_csum_set(ext2_filsys fs
, dgrp_t group
);
1109 extern int ext2fs_group_desc_csum_verify(ext2_filsys fs
, dgrp_t group
);
1110 extern errcode_t
ext2fs_set_gdt_csum(ext2_filsys fs
);
1111 extern __u16
ext2fs_group_desc_csum(ext2_filsys fs
, dgrp_t group
);
1114 extern errcode_t
ext2fs_init_dblist(ext2_filsys fs
, ext2_dblist
*ret_dblist
);
1115 extern errcode_t
ext2fs_add_dir_block(ext2_dblist dblist
, ext2_ino_t ino
,
1116 blk_t blk
, int blockcnt
);
1117 extern errcode_t
ext2fs_add_dir_block2(ext2_dblist dblist
, ext2_ino_t ino
,
1118 blk64_t blk
, e2_blkcnt_t blockcnt
);
1119 extern void ext2fs_dblist_sort(ext2_dblist dblist
,
1120 EXT2_QSORT_TYPE (*sortfunc
)(const void *,
1122 extern void ext2fs_dblist_sort2(ext2_dblist dblist
,
1123 EXT2_QSORT_TYPE (*sortfunc
)(const void *,
1125 extern errcode_t
ext2fs_dblist_iterate(ext2_dblist dblist
,
1126 int (*func
)(ext2_filsys fs
, struct ext2_db_entry
*db_info
,
1129 extern errcode_t
ext2fs_dblist_iterate2(ext2_dblist dblist
,
1130 int (*func
)(ext2_filsys fs
, struct ext2_db_entry2
*db_info
,
1133 extern errcode_t
ext2fs_dblist_iterate3(ext2_dblist dblist
,
1134 int (*func
)(ext2_filsys fs
, struct ext2_db_entry2
*db_info
,
1136 unsigned long long start
,
1137 unsigned long long count
,
1139 extern errcode_t
ext2fs_set_dir_block(ext2_dblist dblist
, ext2_ino_t ino
,
1140 blk_t blk
, int blockcnt
);
1141 extern errcode_t
ext2fs_set_dir_block2(ext2_dblist dblist
, ext2_ino_t ino
,
1142 blk64_t blk
, e2_blkcnt_t blockcnt
);
1143 extern errcode_t
ext2fs_copy_dblist(ext2_dblist src
,
1145 extern int ext2fs_dblist_count(ext2_dblist dblist
);
1146 extern blk64_t
ext2fs_dblist_count2(ext2_dblist dblist
);
1147 extern errcode_t
ext2fs_dblist_get_last(ext2_dblist dblist
,
1148 struct ext2_db_entry
**entry
);
1149 extern errcode_t
ext2fs_dblist_get_last2(ext2_dblist dblist
,
1150 struct ext2_db_entry2
**entry
);
1151 extern errcode_t
ext2fs_dblist_drop_last(ext2_dblist dblist
);
1155 ext2fs_dblist_dir_iterate(ext2_dblist dblist
,
1158 int (*func
)(ext2_ino_t dir
,
1160 struct ext2_dir_entry
*dirent
,
1168 /* digest_encode.c */
1169 #define EXT2FS_DIGEST_SIZE EXT2FS_SHA256_LENGTH
1170 extern int ext2fs_digest_encode(const char *src
, int len
, char *dst
);
1171 extern int ext2fs_digest_decode(const char *src
, int len
, char *dst
);
1175 extern errcode_t
ext2fs_read_dir_block(ext2_filsys fs
, blk_t block
,
1177 extern errcode_t
ext2fs_read_dir_block2(ext2_filsys fs
, blk_t block
,
1178 void *buf
, int flags
);
1179 extern errcode_t
ext2fs_read_dir_block3(ext2_filsys fs
, blk64_t block
,
1180 void *buf
, int flags
);
1181 extern errcode_t
ext2fs_read_dir_block4(ext2_filsys fs
, blk64_t block
,
1182 void *buf
, int flags
, ext2_ino_t ino
);
1183 extern errcode_t
ext2fs_write_dir_block(ext2_filsys fs
, blk_t block
,
1185 extern errcode_t
ext2fs_write_dir_block2(ext2_filsys fs
, blk_t block
,
1186 void *buf
, int flags
);
1187 extern errcode_t
ext2fs_write_dir_block3(ext2_filsys fs
, blk64_t block
,
1188 void *buf
, int flags
);
1189 extern errcode_t
ext2fs_write_dir_block4(ext2_filsys fs
, blk64_t block
,
1190 void *buf
, int flags
, ext2_ino_t ino
);
1193 extern errcode_t
ext2fs_dirhash(int version
, const char *name
, int len
,
1195 ext2_dirhash_t
*ret_hash
,
1196 ext2_dirhash_t
*ret_minor_hash
);
1198 extern errcode_t
ext2fs_dirhash2(int version
, const char *name
, int len
,
1199 const struct ext2fs_nls_table
*charset
,
1202 ext2_dirhash_t
*ret_hash
,
1203 ext2_dirhash_t
*ret_minor_hash
);
1206 extern errcode_t
ext2fs_get_rec_len(ext2_filsys fs
,
1207 struct ext2_dir_entry
*dirent
,
1208 unsigned int *rec_len
);
1209 extern errcode_t
ext2fs_set_rec_len(ext2_filsys fs
,
1211 struct ext2_dir_entry
*dirent
);
1212 extern errcode_t
ext2fs_dir_iterate(ext2_filsys fs
,
1216 int (*func
)(struct ext2_dir_entry
*dirent
,
1222 extern errcode_t
ext2fs_dir_iterate2(ext2_filsys fs
,
1226 int (*func
)(ext2_ino_t dir
,
1228 struct ext2_dir_entry
*dirent
,
1236 extern errcode_t
ext2fs_dup_handle(ext2_filsys src
, ext2_filsys
*dest
);
1239 extern errcode_t
ext2fs_expand_dir(ext2_filsys fs
, ext2_ino_t dir
);
1242 extern __u32
ext2fs_ext_attr_hash_entry(struct ext2_ext_attr_entry
*entry
,
1244 extern errcode_t
ext2fs_ext_attr_hash_entry2(ext2_filsys fs
,
1245 struct ext2_ext_attr_entry
*entry
,
1246 void *data
, __u32
*hash
);
1247 extern errcode_t
ext2fs_read_ext_attr(ext2_filsys fs
, blk_t block
, void *buf
);
1248 extern errcode_t
ext2fs_read_ext_attr2(ext2_filsys fs
, blk64_t block
,
1250 extern errcode_t
ext2fs_read_ext_attr3(ext2_filsys fs
, blk64_t block
,
1251 void *buf
, ext2_ino_t inum
);
1252 extern errcode_t
ext2fs_write_ext_attr(ext2_filsys fs
, blk_t block
,
1254 extern errcode_t
ext2fs_write_ext_attr2(ext2_filsys fs
, blk64_t block
,
1256 extern errcode_t
ext2fs_write_ext_attr3(ext2_filsys fs
, blk64_t block
,
1257 void *buf
, ext2_ino_t inum
);
1258 extern errcode_t
ext2fs_adjust_ea_refcount(ext2_filsys fs
, blk_t blk
,
1260 int adjust
, __u32
*newcount
);
1261 extern errcode_t
ext2fs_adjust_ea_refcount2(ext2_filsys fs
, blk64_t blk
,
1263 int adjust
, __u32
*newcount
);
1264 extern errcode_t
ext2fs_adjust_ea_refcount3(ext2_filsys fs
, blk64_t blk
,
1266 int adjust
, __u32
*newcount
,
1268 errcode_t
ext2fs_xattrs_write(struct ext2_xattr_handle
*handle
);
1269 errcode_t
ext2fs_xattrs_read(struct ext2_xattr_handle
*handle
);
1270 errcode_t
ext2fs_xattrs_iterate(struct ext2_xattr_handle
*h
,
1271 int (*func
)(char *name
, char *value
,
1272 size_t value_len
, void *data
),
1274 errcode_t
ext2fs_xattr_get(struct ext2_xattr_handle
*h
, const char *key
,
1275 void **value
, size_t *value_len
);
1276 errcode_t
ext2fs_xattr_set(struct ext2_xattr_handle
*handle
,
1280 errcode_t
ext2fs_xattr_remove(struct ext2_xattr_handle
*handle
,
1282 errcode_t
ext2fs_xattrs_open(ext2_filsys fs
, ext2_ino_t ino
,
1283 struct ext2_xattr_handle
**handle
);
1284 errcode_t
ext2fs_xattrs_close(struct ext2_xattr_handle
**handle
);
1285 errcode_t
ext2fs_free_ext_attr(ext2_filsys fs
, ext2_ino_t ino
,
1286 struct ext2_inode_large
*inode
);
1287 errcode_t
ext2fs_xattrs_count(struct ext2_xattr_handle
*handle
, size_t *count
);
1288 errcode_t
ext2fs_xattr_inode_max_size(ext2_filsys fs
, ext2_ino_t ino
,
1290 #define XATTR_HANDLE_FLAG_RAW 0x0001
1291 errcode_t
ext2fs_xattrs_flags(struct ext2_xattr_handle
*handle
,
1292 unsigned int *new_flags
, unsigned int *old_flags
);
1293 extern void ext2fs_ext_attr_block_rehash(struct ext2_ext_attr_header
*header
,
1294 struct ext2_ext_attr_entry
*end
);
1295 extern __u32
ext2fs_get_ea_inode_hash(struct ext2_inode
*inode
);
1296 extern void ext2fs_set_ea_inode_hash(struct ext2_inode
*inode
, __u32 hash
);
1297 extern __u64
ext2fs_get_ea_inode_ref(struct ext2_inode
*inode
);
1298 extern void ext2fs_set_ea_inode_ref(struct ext2_inode
*inode
, __u64 ref_count
);
1301 extern errcode_t
ext2fs_extent_header_verify(void *ptr
, int size
);
1302 extern errcode_t
ext2fs_extent_open(ext2_filsys fs
, ext2_ino_t ino
,
1303 ext2_extent_handle_t
*handle
);
1304 extern errcode_t
ext2fs_extent_open2(ext2_filsys fs
, ext2_ino_t ino
,
1305 struct ext2_inode
*inode
,
1306 ext2_extent_handle_t
*ret_handle
);
1307 extern void ext2fs_extent_free(ext2_extent_handle_t handle
);
1308 extern errcode_t
ext2fs_extent_get(ext2_extent_handle_t handle
,
1309 int flags
, struct ext2fs_extent
*extent
);
1310 extern errcode_t
ext2fs_extent_node_split(ext2_extent_handle_t handle
);
1311 extern errcode_t
ext2fs_extent_replace(ext2_extent_handle_t handle
, int flags
,
1312 struct ext2fs_extent
*extent
);
1313 extern errcode_t
ext2fs_extent_insert(ext2_extent_handle_t handle
, int flags
,
1314 struct ext2fs_extent
*extent
);
1315 extern errcode_t
ext2fs_extent_set_bmap(ext2_extent_handle_t handle
,
1316 blk64_t logical
, blk64_t physical
,
1318 extern errcode_t
ext2fs_extent_delete(ext2_extent_handle_t handle
, int flags
);
1319 extern errcode_t
ext2fs_extent_get_info(ext2_extent_handle_t handle
,
1320 struct ext2_extent_info
*info
);
1321 extern errcode_t
ext2fs_extent_goto(ext2_extent_handle_t handle
,
1323 extern errcode_t
ext2fs_extent_goto2(ext2_extent_handle_t handle
,
1324 int leaf_level
, blk64_t blk
);
1325 extern errcode_t
ext2fs_extent_fix_parents(ext2_extent_handle_t handle
);
1326 extern size_t ext2fs_max_extent_depth(ext2_extent_handle_t handle
);
1327 extern errcode_t
ext2fs_fix_extents_checksums(ext2_filsys fs
, ext2_ino_t ino
,
1328 struct ext2_inode
*inode
);
1331 #define EXT2_FALLOCATE_ZERO_BLOCKS (0x1)
1332 #define EXT2_FALLOCATE_FORCE_INIT (0x2)
1333 #define EXT2_FALLOCATE_FORCE_UNINIT (0x4)
1334 #define EXT2_FALLOCATE_INIT_BEYOND_EOF (0x8)
1335 #define EXT2_FALLOCATE_ALL_FLAGS (0xF)
1336 errcode_t
ext2fs_fallocate(ext2_filsys fs
, int flags
, ext2_ino_t ino
,
1337 struct ext2_inode
*inode
, blk64_t goal
,
1338 blk64_t start
, blk64_t len
);
1341 extern errcode_t
ext2fs_file_open2(ext2_filsys fs
, ext2_ino_t ino
,
1342 struct ext2_inode
*inode
,
1343 int flags
, ext2_file_t
*ret
);
1344 extern errcode_t
ext2fs_file_open(ext2_filsys fs
, ext2_ino_t ino
,
1345 int flags
, ext2_file_t
*ret
);
1346 extern ext2_filsys
ext2fs_file_get_fs(ext2_file_t file
);
1347 struct ext2_inode
*ext2fs_file_get_inode(ext2_file_t file
);
1348 extern ext2_ino_t
ext2fs_file_get_inode_num(ext2_file_t file
);
1349 extern errcode_t
ext2fs_file_close(ext2_file_t file
);
1350 extern errcode_t
ext2fs_file_flush(ext2_file_t file
);
1351 extern errcode_t
ext2fs_file_read(ext2_file_t file
, void *buf
,
1352 unsigned int wanted
, unsigned int *got
);
1353 extern errcode_t
ext2fs_file_write(ext2_file_t file
, const void *buf
,
1354 unsigned int nbytes
, unsigned int *written
);
1355 extern errcode_t
ext2fs_file_llseek(ext2_file_t file
, __u64 offset
,
1356 int whence
, __u64
*ret_pos
);
1357 extern errcode_t
ext2fs_file_lseek(ext2_file_t file
, ext2_off_t offset
,
1358 int whence
, ext2_off_t
*ret_pos
);
1359 errcode_t
ext2fs_file_get_lsize(ext2_file_t file
, __u64
*ret_size
);
1360 extern ext2_off_t
ext2fs_file_get_size(ext2_file_t file
);
1361 extern errcode_t
ext2fs_file_set_size(ext2_file_t file
, ext2_off_t size
);
1362 extern errcode_t
ext2fs_file_set_size2(ext2_file_t file
, ext2_off64_t size
);
1365 extern char *ext2fs_find_block_device(dev_t device
);
1368 extern errcode_t
ext2fs_sync_device(int fd
, int flushb
);
1371 extern void ext2fs_free(ext2_filsys fs
);
1372 extern void ext2fs_free_dblist(ext2_dblist dblist
);
1373 extern void ext2fs_badblocks_list_free(ext2_badblocks_list bb
);
1374 extern void ext2fs_u32_list_free(ext2_u32_list bb
);
1377 extern void ext2fs_free_generic_bitmap(ext2fs_inode_bitmap bitmap
);
1378 extern errcode_t
ext2fs_make_generic_bitmap(errcode_t magic
, ext2_filsys fs
,
1379 __u32 start
, __u32 end
,
1381 const char *descr
, char *init_map
,
1382 ext2fs_generic_bitmap
*ret
);
1383 extern errcode_t
ext2fs_allocate_generic_bitmap(__u32 start
,
1387 ext2fs_generic_bitmap
*ret
);
1388 extern errcode_t
ext2fs_copy_generic_bitmap(ext2fs_generic_bitmap src
,
1389 ext2fs_generic_bitmap
*dest
);
1390 extern void ext2fs_clear_generic_bitmap(ext2fs_generic_bitmap bitmap
);
1391 extern errcode_t
ext2fs_fudge_generic_bitmap_end(ext2fs_inode_bitmap bitmap
,
1396 extern void ext2fs_set_generic_bitmap_padding(ext2fs_generic_bitmap map
);
1397 extern errcode_t
ext2fs_resize_generic_bitmap(errcode_t magic
,
1400 ext2fs_generic_bitmap bmap
);
1401 extern errcode_t
ext2fs_compare_generic_bitmap(errcode_t magic
, errcode_t neq
,
1402 ext2fs_generic_bitmap bm1
,
1403 ext2fs_generic_bitmap bm2
);
1404 extern errcode_t
ext2fs_get_generic_bitmap_range(ext2fs_generic_bitmap bmap
,
1406 __u32 start
, __u32 num
,
1408 extern errcode_t
ext2fs_set_generic_bitmap_range(ext2fs_generic_bitmap bmap
,
1410 __u32 start
, __u32 num
,
1412 extern errcode_t
ext2fs_find_first_zero_generic_bitmap(ext2fs_generic_bitmap bitmap
,
1413 __u32 start
, __u32 end
,
1415 extern errcode_t
ext2fs_find_first_set_generic_bitmap(ext2fs_generic_bitmap bitmap
,
1416 __u32 start
, __u32 end
,
1419 /* gen_bitmap64.c */
1420 void ext2fs_free_generic_bmap(ext2fs_generic_bitmap bmap
);
1421 errcode_t
ext2fs_alloc_generic_bmap(ext2_filsys fs
, errcode_t magic
,
1422 int type
, __u64 start
, __u64 end
,
1425 ext2fs_generic_bitmap
*ret
);
1426 errcode_t
ext2fs_copy_generic_bmap(ext2fs_generic_bitmap src
,
1427 ext2fs_generic_bitmap
*dest
);
1428 void ext2fs_clear_generic_bmap(ext2fs_generic_bitmap bitmap
);
1429 errcode_t
ext2fs_fudge_generic_bmap_end(ext2fs_generic_bitmap bitmap
,
1431 __u64 end
, __u64
*oend
);
1432 void ext2fs_set_generic_bmap_padding(ext2fs_generic_bitmap bmap
);
1433 errcode_t
ext2fs_resize_generic_bmap(ext2fs_generic_bitmap bmap
,
1435 __u64 new_real_end
);
1436 errcode_t
ext2fs_compare_generic_bmap(errcode_t neq
,
1437 ext2fs_generic_bitmap bm1
,
1438 ext2fs_generic_bitmap bm2
);
1439 errcode_t
ext2fs_get_generic_bmap_range(ext2fs_generic_bitmap bmap
,
1440 __u64 start
, unsigned int num
,
1442 errcode_t
ext2fs_set_generic_bmap_range(ext2fs_generic_bitmap bmap
,
1443 __u64 start
, unsigned int num
,
1445 errcode_t
ext2fs_convert_subcluster_bitmap(ext2_filsys fs
,
1446 ext2fs_block_bitmap
*bitmap
);
1448 /* get_num_dirs.c */
1449 extern errcode_t
ext2fs_get_num_dirs(ext2_filsys fs
, ext2_ino_t
*ret_num_dirs
);
1452 extern errcode_t
ext2fs_get_device_size(const char *file
, int blocksize
,
1454 extern errcode_t
ext2fs_get_device_size2(const char *file
, int blocksize
,
1455 blk64_t
*retblocks
);
1458 extern int ext2fs_get_dio_alignment(int fd
);
1459 errcode_t
ext2fs_get_device_sectsize(const char *file
, int *sectsize
);
1460 errcode_t
ext2fs_get_device_phys_sectsize(const char *file
, int *sectsize
);
1463 errcode_t
ext2fs_iblk_add_blocks(ext2_filsys fs
, struct ext2_inode
*inode
,
1464 blk64_t num_blocks
);
1465 errcode_t
ext2fs_iblk_sub_blocks(ext2_filsys fs
, struct ext2_inode
*inode
,
1466 blk64_t num_blocks
);
1467 errcode_t
ext2fs_iblk_set(ext2_filsys fs
, struct ext2_inode
*inode
, blk64_t b
);
1470 extern errcode_t
ext2fs_image_inode_write(ext2_filsys fs
, int fd
, int flags
);
1471 extern errcode_t
ext2fs_image_inode_read(ext2_filsys fs
, int fd
, int flags
);
1472 extern errcode_t
ext2fs_image_super_write(ext2_filsys fs
, int fd
, int flags
);
1473 extern errcode_t
ext2fs_image_super_read(ext2_filsys fs
, int fd
, int flags
);
1474 extern errcode_t
ext2fs_image_bitmap_write(ext2_filsys fs
, int fd
, int flags
);
1475 extern errcode_t
ext2fs_image_bitmap_read(ext2_filsys fs
, int fd
, int flags
);
1478 errcode_t
ext2fs_read_ind_block(ext2_filsys fs
, blk_t blk
, void *buf
);
1479 errcode_t
ext2fs_write_ind_block(ext2_filsys fs
, blk_t blk
, void *buf
);
1482 extern errcode_t
ext2fs_initialize(const char *name
, int flags
,
1483 struct ext2_super_block
*param
,
1484 io_manager manager
, ext2_filsys
*ret_fs
);
1487 extern void ext2fs_free_icount(ext2_icount_t icount
);
1488 extern errcode_t
ext2fs_create_icount_tdb(ext2_filsys fs
, char *tdb_dir
,
1489 int flags
, ext2_icount_t
*ret
);
1490 extern errcode_t
ext2fs_create_icount2(ext2_filsys fs
, int flags
,
1492 ext2_icount_t hint
, ext2_icount_t
*ret
);
1493 extern errcode_t
ext2fs_create_icount(ext2_filsys fs
, int flags
,
1495 ext2_icount_t
*ret
);
1496 extern errcode_t
ext2fs_icount_fetch(ext2_icount_t icount
, ext2_ino_t ino
,
1498 extern errcode_t
ext2fs_icount_increment(ext2_icount_t icount
, ext2_ino_t ino
,
1500 extern errcode_t
ext2fs_icount_decrement(ext2_icount_t icount
, ext2_ino_t ino
,
1502 extern errcode_t
ext2fs_icount_store(ext2_icount_t icount
, ext2_ino_t ino
,
1504 extern ext2_ino_t
ext2fs_get_icount_size(ext2_icount_t icount
);
1505 errcode_t
ext2fs_icount_validate(ext2_icount_t icount
, FILE *);
1509 extern errcode_t
ext2fs_get_memalign(unsigned long size
,
1510 unsigned long align
, void *ptr
);
1513 extern errcode_t
ext2fs_inline_data_init(ext2_filsys fs
, ext2_ino_t ino
);
1514 extern errcode_t
ext2fs_inline_data_size(ext2_filsys fs
, ext2_ino_t ino
,
1516 extern errcode_t
ext2fs_inline_data_get(ext2_filsys fs
, ext2_ino_t ino
,
1517 struct ext2_inode
*inode
,
1518 void *buf
, size_t *size
);
1519 extern errcode_t
ext2fs_inline_data_set(ext2_filsys fs
, ext2_ino_t ino
,
1520 struct ext2_inode
*inode
,
1521 void *buf
, size_t size
);
1524 extern errcode_t
ext2fs_create_inode_cache(ext2_filsys fs
,
1525 unsigned int cache_size
);
1526 extern void ext2fs_free_inode_cache(struct ext2_inode_cache
*icache
);
1527 extern errcode_t
ext2fs_flush_icache(ext2_filsys fs
);
1528 extern errcode_t
ext2fs_get_next_inode_full(ext2_inode_scan scan
,
1530 struct ext2_inode
*inode
,
1532 #define EXT2_INODE_SCAN_DEFAULT_BUFFER_BLOCKS 8
1533 extern errcode_t
ext2fs_open_inode_scan(ext2_filsys fs
, int buffer_blocks
,
1534 ext2_inode_scan
*ret_scan
);
1535 extern void ext2fs_close_inode_scan(ext2_inode_scan scan
);
1536 extern errcode_t
ext2fs_get_next_inode(ext2_inode_scan scan
, ext2_ino_t
*ino
,
1537 struct ext2_inode
*inode
);
1538 extern errcode_t
ext2fs_inode_scan_goto_blockgroup(ext2_inode_scan scan
,
1540 extern void ext2fs_set_inode_callback
1541 (ext2_inode_scan scan
,
1542 errcode_t (*done_group
)(ext2_filsys fs
,
1543 ext2_inode_scan scan
,
1546 void *done_group_data
);
1547 extern int ext2fs_inode_scan_flags(ext2_inode_scan scan
, int set_flags
,
1549 extern errcode_t
ext2fs_read_inode_full(ext2_filsys fs
, ext2_ino_t ino
,
1550 struct ext2_inode
* inode
,
1552 extern errcode_t
ext2fs_read_inode(ext2_filsys fs
, ext2_ino_t ino
,
1553 struct ext2_inode
* inode
);
1554 extern errcode_t
ext2fs_read_inode2(ext2_filsys fs
, ext2_ino_t ino
,
1555 struct ext2_inode
* inode
,
1556 int bufsize
, int flags
);
1557 extern errcode_t
ext2fs_write_inode_full(ext2_filsys fs
, ext2_ino_t ino
,
1558 struct ext2_inode
* inode
,
1560 extern errcode_t
ext2fs_write_inode(ext2_filsys fs
, ext2_ino_t ino
,
1561 struct ext2_inode
* inode
);
1562 extern errcode_t
ext2fs_write_inode2(ext2_filsys fs
, ext2_ino_t ino
,
1563 struct ext2_inode
* inode
,
1564 int bufsize
, int flags
);
1565 extern errcode_t
ext2fs_write_new_inode(ext2_filsys fs
, ext2_ino_t ino
,
1566 struct ext2_inode
* inode
);
1567 extern errcode_t
ext2fs_get_blocks(ext2_filsys fs
, ext2_ino_t ino
, blk_t
*blocks
);
1568 extern errcode_t
ext2fs_check_directory(ext2_filsys fs
, ext2_ino_t ino
);
1571 extern io_manager inode_io_manager
;
1572 extern errcode_t
ext2fs_inode_io_intern(ext2_filsys fs
, ext2_ino_t ino
,
1574 extern errcode_t
ext2fs_inode_io_intern2(ext2_filsys fs
, ext2_ino_t ino
,
1575 struct ext2_inode
*inode
,
1579 extern errcode_t
ext2fs_check_if_mounted(const char *file
, int *mount_flags
);
1580 extern errcode_t
ext2fs_check_mount_point(const char *device
, int *mount_flags
,
1581 char *mtpt
, int mtlen
);
1585 * NOTE: This function removes from an inode the blocks "start", "end", and
1586 * every block in between.
1588 extern errcode_t
ext2fs_punch(ext2_filsys fs
, ext2_ino_t ino
,
1589 struct ext2_inode
*inode
,
1590 char *block_buf
, blk64_t start
,
1594 extern errcode_t
ext2fs_lookup(ext2_filsys fs
, ext2_ino_t dir
, const char *name
,
1595 int namelen
, char *buf
, ext2_ino_t
*inode
);
1596 extern errcode_t
ext2fs_namei(ext2_filsys fs
, ext2_ino_t root
, ext2_ino_t cwd
,
1597 const char *name
, ext2_ino_t
*inode
);
1598 errcode_t
ext2fs_namei_follow(ext2_filsys fs
, ext2_ino_t root
, ext2_ino_t cwd
,
1599 const char *name
, ext2_ino_t
*inode
);
1600 extern errcode_t
ext2fs_follow_link(ext2_filsys fs
, ext2_ino_t root
, ext2_ino_t cwd
,
1601 ext2_ino_t inode
, ext2_ino_t
*res_inode
);
1604 int ext2fs_native_flag(void);
1607 extern errcode_t
ext2fs_new_dir_block(ext2_filsys fs
, ext2_ino_t dir_ino
,
1608 ext2_ino_t parent_ino
, char **block
);
1609 extern errcode_t
ext2fs_new_dir_inline_data(ext2_filsys fs
, ext2_ino_t dir_ino
,
1610 ext2_ino_t parent_ino
, __u32
*iblock
);
1613 extern const struct ext2fs_nls_table
*ext2fs_load_nls_table(int encoding
);
1616 extern errcode_t
ext2fs_mkdir(ext2_filsys fs
, ext2_ino_t parent
, ext2_ino_t inum
,
1620 extern errcode_t
ext2fs_zero_blocks(ext2_filsys fs
, blk_t blk
, int num
,
1621 blk_t
*ret_blk
, int *ret_count
);
1622 extern errcode_t
ext2fs_zero_blocks2(ext2_filsys fs
, blk64_t blk
, int num
,
1623 blk64_t
*ret_blk
, int *ret_count
);
1624 extern errcode_t
ext2fs_create_journal_superblock(ext2_filsys fs
,
1625 __u32 num_blocks
, int flags
,
1627 extern errcode_t
ext2fs_add_journal_device(ext2_filsys fs
,
1628 ext2_filsys journal_dev
);
1629 extern errcode_t
ext2fs_add_journal_inode(ext2_filsys fs
, blk_t num_blocks
,
1631 extern errcode_t
ext2fs_add_journal_inode2(ext2_filsys fs
, blk_t num_blocks
,
1632 blk64_t goal
, int flags
);
1633 extern int ext2fs_default_journal_size(__u64 num_blocks
);
1634 extern int ext2fs_journal_sb_start(int blocksize
);
1637 extern errcode_t
ext2fs_open(const char *name
, int flags
, int superblock
,
1638 unsigned int block_size
, io_manager manager
,
1639 ext2_filsys
*ret_fs
);
1640 extern errcode_t
ext2fs_open2(const char *name
, const char *io_options
,
1641 int flags
, int superblock
,
1642 unsigned int block_size
, io_manager manager
,
1643 ext2_filsys
*ret_fs
);
1645 * The dgrp_t argument to these two functions is not actually a group number
1646 * but a block number offset within a group table! Convert with the formula
1647 * (group_number / groups_per_block).
1649 extern blk64_t
ext2fs_descriptor_block_loc2(ext2_filsys fs
,
1650 blk64_t group_block
, dgrp_t i
);
1651 extern blk_t
ext2fs_descriptor_block_loc(ext2_filsys fs
, blk_t group_block
,
1653 errcode_t
ext2fs_get_data_io(ext2_filsys fs
, io_channel
*old_io
);
1654 errcode_t
ext2fs_set_data_io(ext2_filsys fs
, io_channel new_io
);
1655 errcode_t
ext2fs_rewrite_to_io(ext2_filsys fs
, io_channel new_io
);
1657 /* get_pathname.c */
1658 extern errcode_t
ext2fs_get_pathname(ext2_filsys fs
, ext2_ino_t dir
, ext2_ino_t ino
,
1662 errcode_t
ext2fs_link(ext2_filsys fs
, ext2_ino_t dir
, const char *name
,
1663 ext2_ino_t ino
, int flags
);
1664 errcode_t
ext2fs_unlink(ext2_filsys fs
, ext2_ino_t dir
, const char *name
,
1665 ext2_ino_t ino
, int flags
);
1668 errcode_t
ext2fs_symlink(ext2_filsys fs
, ext2_ino_t parent
, ext2_ino_t ino
,
1669 const char *name
, const char *target
);
1670 int ext2fs_is_fast_symlink(struct ext2_inode
*inode
);
1673 errcode_t
ext2fs_mmp_read(ext2_filsys fs
, blk64_t mmp_blk
, void *buf
);
1674 errcode_t
ext2fs_mmp_write(ext2_filsys fs
, blk64_t mmp_blk
, void *buf
);
1675 errcode_t
ext2fs_mmp_clear(ext2_filsys fs
);
1676 errcode_t
ext2fs_mmp_init(ext2_filsys fs
);
1677 errcode_t
ext2fs_mmp_start(ext2_filsys fs
);
1678 errcode_t
ext2fs_mmp_update(ext2_filsys fs
);
1679 errcode_t
ext2fs_mmp_update2(ext2_filsys fs
, int immediately
);
1680 errcode_t
ext2fs_mmp_stop(ext2_filsys fs
);
1681 unsigned ext2fs_mmp_new_seq(void);
1684 extern errcode_t
ext2fs_read_bb_inode(ext2_filsys fs
,
1685 ext2_badblocks_list
*bb_list
);
1687 /* read_bb_file.c */
1688 extern errcode_t
ext2fs_read_bb_FILE2(ext2_filsys fs
, FILE *f
,
1689 ext2_badblocks_list
*bb_list
,
1691 void (*invalid
)(ext2_filsys fs
,
1695 extern errcode_t
ext2fs_read_bb_FILE(ext2_filsys fs
, FILE *f
,
1696 ext2_badblocks_list
*bb_list
,
1697 void (*invalid
)(ext2_filsys fs
,
1701 extern errcode_t
ext2fs_create_resize_inode(ext2_filsys fs
);
1704 #define EXT2FS_SHA256_LENGTH 32
1706 extern void ext2fs_sha256(const unsigned char *in
, unsigned long in_size
,
1707 unsigned char out
[EXT2FS_SHA256_LENGTH
]);
1711 #define EXT2FS_SHA512_LENGTH 64
1712 extern void ext2fs_sha512(const unsigned char *in
, unsigned long in_size
,
1713 unsigned char out
[EXT2FS_SHA512_LENGTH
]);
1716 extern errcode_t
ext2fs_dirent_swab_in2(ext2_filsys fs
, char *buf
, size_t size
,
1718 extern errcode_t
ext2fs_dirent_swab_in(ext2_filsys fs
, char *buf
, int flags
);
1719 extern errcode_t
ext2fs_dirent_swab_out2(ext2_filsys fs
, char *buf
, size_t size
,
1721 extern errcode_t
ext2fs_dirent_swab_out(ext2_filsys fs
, char *buf
, int flags
);
1722 extern void ext2fs_swap_ext_attr(char *to
, char *from
, int bufsize
,
1724 extern void ext2fs_swap_ext_attr_header(struct ext2_ext_attr_header
*to_header
,
1725 struct ext2_ext_attr_header
*from_hdr
);
1726 extern void ext2fs_swap_ext_attr_entry(struct ext2_ext_attr_entry
*to_entry
,
1727 struct ext2_ext_attr_entry
*from_entry
);
1728 extern void ext2fs_swap_super(struct ext2_super_block
* super
);
1729 extern void ext2fs_swap_group_desc(struct ext2_group_desc
*gdp
);
1730 extern void ext2fs_swap_group_desc2(ext2_filsys
, struct ext2_group_desc
*gdp
);
1731 extern void ext2fs_swap_inode_full(ext2_filsys fs
, struct ext2_inode_large
*t
,
1732 struct ext2_inode_large
*f
, int hostorder
,
1734 extern void ext2fs_swap_inode(ext2_filsys fs
,struct ext2_inode
*t
,
1735 struct ext2_inode
*f
, int hostorder
);
1736 extern void ext2fs_swap_mmp(struct mmp_struct
*mmp
);
1739 extern int ext2fs_open_file(const char *pathname
, int flags
, mode_t mode
);
1740 extern int ext2fs_stat(const char *path
, ext2fs_struct_stat
*buf
);
1741 extern int ext2fs_fstat(int fd
, ext2fs_struct_stat
*buf
);
1744 extern int ext2fs_inode_has_valid_blocks(struct ext2_inode
*inode
);
1745 extern int ext2fs_inode_has_valid_blocks2(ext2_filsys fs
,
1746 struct ext2_inode
*inode
);
1749 extern int ext2fs_parse_version_string(const char *ver_string
);
1750 extern int ext2fs_get_library_version(const char **ver_string
,
1751 const char **date_string
);
1753 /* write_bb_file.c */
1754 extern errcode_t
ext2fs_write_bb_FILE(ext2_badblocks_list bb_list
,
1759 /* inline functions */
1760 #ifdef NO_INLINE_FUNCS
1761 extern errcode_t
ext2fs_get_mem(unsigned long size
, void *ptr
);
1762 extern errcode_t
ext2fs_get_memzero(unsigned long size
, void *ptr
);
1763 extern errcode_t
ext2fs_get_array(unsigned long count
,
1764 unsigned long size
, void *ptr
);
1765 extern errcode_t
ext2fs_get_arrayzero(unsigned long count
,
1766 unsigned long size
, void *ptr
);
1767 extern errcode_t
ext2fs_free_mem(void *ptr
);
1768 extern errcode_t
ext2fs_resize_mem(unsigned long old_size
,
1769 unsigned long size
, void *ptr
);
1770 extern void ext2fs_mark_super_dirty(ext2_filsys fs
);
1771 extern void ext2fs_mark_changed(ext2_filsys fs
);
1772 extern int ext2fs_test_changed(ext2_filsys fs
);
1773 extern void ext2fs_mark_valid(ext2_filsys fs
);
1774 extern void ext2fs_unmark_valid(ext2_filsys fs
);
1775 extern int ext2fs_test_valid(ext2_filsys fs
);
1776 extern void ext2fs_mark_ib_dirty(ext2_filsys fs
);
1777 extern void ext2fs_mark_bb_dirty(ext2_filsys fs
);
1778 extern int ext2fs_test_ib_dirty(ext2_filsys fs
);
1779 extern int ext2fs_test_bb_dirty(ext2_filsys fs
);
1780 extern dgrp_t
ext2fs_group_of_blk(ext2_filsys fs
, blk_t blk
);
1781 extern dgrp_t
ext2fs_group_of_ino(ext2_filsys fs
, ext2_ino_t ino
);
1782 extern blk_t
ext2fs_group_first_block(ext2_filsys fs
, dgrp_t group
);
1783 extern blk_t
ext2fs_group_last_block(ext2_filsys fs
, dgrp_t group
);
1784 extern blk_t
ext2fs_inode_data_blocks(ext2_filsys fs
,
1785 struct ext2_inode
*inode
);
1786 extern int ext2fs_htree_intnode_maxrecs(ext2_filsys fs
, int blocks
);
1787 extern unsigned int ext2fs_div_ceil(unsigned int a
, unsigned int b
);
1788 extern __u64
ext2fs_div64_ceil(__u64 a
, __u64 b
);
1789 extern int ext2fs_dirent_name_len(const struct ext2_dir_entry
*entry
);
1790 extern void ext2fs_dirent_set_name_len(struct ext2_dir_entry
*entry
, int len
);
1791 extern int ext2fs_dirent_file_type(const struct ext2_dir_entry
*entry
);
1792 extern void ext2fs_dirent_set_file_type(struct ext2_dir_entry
*entry
, int type
);
1793 extern struct ext2_inode
*ext2fs_inode(struct ext2_inode_large
* large_inode
);
1794 extern const struct ext2_inode
*ext2fs_const_inode(const struct ext2_inode_large
* large_inode
);
1799 * The actual inlined functions definitions themselves...
1801 * If NO_INLINE_FUNCS is defined, then we won't try to do inline
1804 #if (defined(INCLUDE_INLINE_FUNCS) || !defined(NO_INLINE_FUNCS))
1805 #ifdef INCLUDE_INLINE_FUNCS
1806 #define _INLINE_ extern
1808 #if (__STDC_VERSION__ >= 199901L)
1809 #define _INLINE_ inline
1812 #define _INLINE_ extern __inline__
1813 #else /* For Watcom C */
1814 #define _INLINE_ extern inline
1815 #endif /* __GNUC__ */
1816 #endif /* __STDC_VERSION__ >= 199901L */
1819 #ifndef EXT2_CUSTOM_MEMORY_ROUTINES
1822 * Allocate memory. The 'ptr' arg must point to a pointer.
1824 _INLINE_ errcode_t
ext2fs_get_mem(unsigned long size
, void *ptr
)
1830 return EXT2_ET_NO_MEMORY
;
1831 memcpy(ptr
, &pp
, sizeof (pp
));
1835 _INLINE_ errcode_t
ext2fs_get_memzero(unsigned long size
, void *ptr
)
1841 return EXT2_ET_NO_MEMORY
;
1842 memset(pp
, 0, size
);
1843 memcpy(ptr
, &pp
, sizeof(pp
));
1847 _INLINE_ errcode_t
ext2fs_get_array(unsigned long count
, unsigned long size
, void *ptr
)
1849 if (count
&& (~0UL)/count
< size
)
1850 return EXT2_ET_NO_MEMORY
;
1851 return ext2fs_get_mem(count
*size
, ptr
);
1854 _INLINE_ errcode_t
ext2fs_get_arrayzero(unsigned long count
,
1855 unsigned long size
, void *ptr
)
1859 if (count
&& (~0UL)/count
< size
)
1860 return EXT2_ET_NO_MEMORY
;
1861 pp
= calloc(count
, size
);
1863 return EXT2_ET_NO_MEMORY
;
1864 memcpy(ptr
, &pp
, sizeof(pp
));
1869 * Free memory. The 'ptr' arg must point to a pointer.
1871 _INLINE_ errcode_t
ext2fs_free_mem(void *ptr
)
1875 memcpy(&p
, ptr
, sizeof(p
));
1878 memcpy(ptr
, &p
, sizeof(p
));
1883 * Resize memory. The 'ptr' arg must point to a pointer.
1885 _INLINE_ errcode_t
ext2fs_resize_mem(unsigned long EXT2FS_ATTR((unused
)) old_size
,
1886 unsigned long size
, void *ptr
)
1890 /* Use "memcpy" for pointer assignments here to avoid problems
1891 * with C99 strict type aliasing rules. */
1892 memcpy(&p
, ptr
, sizeof(p
));
1893 p
= realloc(p
, size
);
1895 return EXT2_ET_NO_MEMORY
;
1896 memcpy(ptr
, &p
, sizeof(p
));
1899 #endif /* Custom memory routines */
1902 * Mark a filesystem superblock as dirty
1904 _INLINE_
void ext2fs_mark_super_dirty(ext2_filsys fs
)
1906 fs
->flags
|= EXT2_FLAG_DIRTY
| EXT2_FLAG_CHANGED
;
1910 * Mark a filesystem as changed
1912 _INLINE_
void ext2fs_mark_changed(ext2_filsys fs
)
1914 fs
->flags
|= EXT2_FLAG_CHANGED
;
1918 * Check to see if a filesystem has changed
1920 _INLINE_
int ext2fs_test_changed(ext2_filsys fs
)
1922 return (fs
->flags
& EXT2_FLAG_CHANGED
);
1926 * Mark a filesystem as valid
1928 _INLINE_
void ext2fs_mark_valid(ext2_filsys fs
)
1930 fs
->flags
|= EXT2_FLAG_VALID
;
1934 * Mark a filesystem as NOT valid
1936 _INLINE_
void ext2fs_unmark_valid(ext2_filsys fs
)
1938 fs
->flags
&= ~EXT2_FLAG_VALID
;
1942 * Check to see if a filesystem is valid
1944 _INLINE_
int ext2fs_test_valid(ext2_filsys fs
)
1946 return (fs
->flags
& EXT2_FLAG_VALID
);
1950 * Mark the inode bitmap as dirty
1952 _INLINE_
void ext2fs_mark_ib_dirty(ext2_filsys fs
)
1954 fs
->flags
|= EXT2_FLAG_IB_DIRTY
| EXT2_FLAG_CHANGED
;
1958 * Mark the block bitmap as dirty
1960 _INLINE_
void ext2fs_mark_bb_dirty(ext2_filsys fs
)
1962 fs
->flags
|= EXT2_FLAG_BB_DIRTY
| EXT2_FLAG_CHANGED
;
1966 * Check to see if a filesystem's inode bitmap is dirty
1968 _INLINE_
int ext2fs_test_ib_dirty(ext2_filsys fs
)
1970 return (fs
->flags
& EXT2_FLAG_IB_DIRTY
);
1974 * Check to see if a filesystem's block bitmap is dirty
1976 _INLINE_
int ext2fs_test_bb_dirty(ext2_filsys fs
)
1978 return (fs
->flags
& EXT2_FLAG_BB_DIRTY
);
1982 * Return the group # of a block
1984 _INLINE_ dgrp_t
ext2fs_group_of_blk(ext2_filsys fs
, blk_t blk
)
1986 return ext2fs_group_of_blk2(fs
, blk
);
1989 * Return the group # of an inode number
1991 _INLINE_ dgrp_t
ext2fs_group_of_ino(ext2_filsys fs
, ext2_ino_t ino
)
1993 return (ino
- 1) / fs
->super
->s_inodes_per_group
;
1997 * Return the first block (inclusive) in a group
1999 _INLINE_ blk_t
ext2fs_group_first_block(ext2_filsys fs
, dgrp_t group
)
2001 return (blk_t
) ext2fs_group_first_block2(fs
, group
);
2005 * Return the last block (inclusive) in a group
2007 _INLINE_ blk_t
ext2fs_group_last_block(ext2_filsys fs
, dgrp_t group
)
2009 return (blk_t
) ext2fs_group_last_block2(fs
, group
);
2012 _INLINE_ blk_t
ext2fs_inode_data_blocks(ext2_filsys fs
,
2013 struct ext2_inode
*inode
)
2015 return (blk_t
) ext2fs_inode_data_blocks2(fs
, inode
);
2018 _INLINE_
int ext2fs_htree_intnode_maxrecs(ext2_filsys fs
, int blocks
)
2020 return blocks
* ((fs
->blocksize
- 8) / sizeof(struct ext2_dx_entry
));
2024 * This is an efficient, overflow safe way of calculating ceil((1.0 * a) / b)
2026 _INLINE_
unsigned int ext2fs_div_ceil(unsigned int a
, unsigned int b
)
2030 return ((a
- 1) / b
) + 1;
2033 _INLINE_ __u64
ext2fs_div64_ceil(__u64 a
, __u64 b
)
2037 return ((a
- 1) / b
) + 1;
2040 _INLINE_
int ext2fs_dirent_name_len(const struct ext2_dir_entry
*entry
)
2042 return entry
->name_len
& 0xff;
2045 _INLINE_
void ext2fs_dirent_set_name_len(struct ext2_dir_entry
*entry
, int len
)
2047 entry
->name_len
= (entry
->name_len
& 0xff00) | (len
& 0xff);
2050 _INLINE_
int ext2fs_dirent_file_type(const struct ext2_dir_entry
*entry
)
2052 return entry
->name_len
>> 8;
2055 _INLINE_
void ext2fs_dirent_set_file_type(struct ext2_dir_entry
*entry
, int type
)
2057 entry
->name_len
= (entry
->name_len
& 0xff) | (type
<< 8);
2060 _INLINE_
struct ext2_inode
*ext2fs_inode(struct ext2_inode_large
* large_inode
)
2062 /* It is always safe to convert large inode to a small inode */
2063 return (struct ext2_inode
*) large_inode
;
2066 _INLINE_
const struct ext2_inode
*
2067 ext2fs_const_inode(const struct ext2_inode_large
* large_inode
)
2069 /* It is always safe to convert large inode to a small inode */
2070 return (const struct ext2_inode
*) large_inode
;
2076 /* htree levels for ext4 */
2077 #define EXT4_HTREE_LEVEL_COMPAT 2
2078 #define EXT4_HTREE_LEVEL 3
2080 static inline unsigned int ext2_dir_htree_level(ext2_filsys fs
)
2082 if (ext2fs_has_feature_largedir(fs
->super
))
2083 return EXT4_HTREE_LEVEL
;
2085 return EXT4_HTREE_LEVEL_COMPAT
;
2092 #endif /* _EXT2FS_EXT2FS_H */