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)
617 #define EXT4_LIB_INCOMPAT_MMP EXT4_FEATURE_INCOMPAT_MMP
619 #define EXT4_LIB_INCOMPAT_MMP (0)
622 #define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\
623 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\
624 EXT2_FEATURE_INCOMPAT_META_BG|\
625 EXT3_FEATURE_INCOMPAT_RECOVER|\
626 EXT3_FEATURE_INCOMPAT_EXTENTS|\
627 EXT4_FEATURE_INCOMPAT_FLEX_BG|\
628 EXT4_FEATURE_INCOMPAT_EA_INODE|\
629 EXT4_LIB_INCOMPAT_MMP|\
630 EXT4_FEATURE_INCOMPAT_64BIT|\
631 EXT4_FEATURE_INCOMPAT_INLINE_DATA|\
632 EXT4_FEATURE_INCOMPAT_ENCRYPT|\
633 EXT4_FEATURE_INCOMPAT_CASEFOLD|\
634 EXT4_FEATURE_INCOMPAT_CSUM_SEED|\
635 EXT4_FEATURE_INCOMPAT_LARGEDIR)
637 #define EXT2_LIB_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|\
638 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|\
639 EXT2_FEATURE_RO_COMPAT_LARGE_FILE|\
640 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|\
641 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|\
642 EXT4_FEATURE_RO_COMPAT_GDT_CSUM|\
643 EXT4_FEATURE_RO_COMPAT_BIGALLOC|\
644 EXT4_FEATURE_RO_COMPAT_QUOTA|\
645 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM|\
646 EXT4_FEATURE_RO_COMPAT_READONLY |\
647 EXT4_FEATURE_RO_COMPAT_PROJECT |\
648 EXT4_FEATURE_RO_COMPAT_SHARED_BLOCKS |\
649 EXT4_FEATURE_RO_COMPAT_VERITY)
652 * These features are only allowed if EXT2_FLAG_SOFTSUPP_FEATURES is passed
655 #define EXT2_LIB_SOFTSUPP_INCOMPAT (0)
656 #define EXT2_LIB_SOFTSUPP_RO_COMPAT (EXT4_FEATURE_RO_COMPAT_REPLICA)
659 /* Translate a block number to a cluster number */
660 #define EXT2FS_CLUSTER_RATIO(fs) (1 << (fs)->cluster_ratio_bits)
661 #define EXT2FS_CLUSTER_MASK(fs) (EXT2FS_CLUSTER_RATIO(fs) - 1)
662 #define EXT2FS_B2C(fs, blk) ((blk) >> (fs)->cluster_ratio_bits)
663 /* Translate a cluster number to a block number */
664 #define EXT2FS_C2B(fs, cluster) ((cluster) << (fs)->cluster_ratio_bits)
665 /* Translate # of blks to # of clusters */
666 #define EXT2FS_NUM_B2C(fs, blks) (((blks) + EXT2FS_CLUSTER_MASK(fs)) >> \
667 (fs)->cluster_ratio_bits)
669 #if defined(HAVE_FSTAT64) && !defined(__OSX_AVAILABLE_BUT_DEPRECATED)
670 typedef struct stat64 ext2fs_struct_stat
;
672 typedef struct stat ext2fs_struct_stat
;
676 * For ext2fs_close2() and ext2fs_flush2(), this flag allows you to
677 * avoid the fsync call.
679 #define EXT2_FLAG_FLUSH_NO_SYNC 1
682 * Modify and iterate extended attributes
684 struct ext2_xattr_handle
;
685 #define XATTR_ABORT 1
686 #define XATTR_CHANGED 2
689 * function prototypes
691 static inline int ext2fs_has_group_desc_csum(ext2_filsys fs
)
693 return ext2fs_has_feature_metadata_csum(fs
->super
) ||
694 ext2fs_has_feature_gdt_csum(fs
->super
);
697 /* The LARGE_FILE feature should be set if we have stored files 2GB+ in size */
698 static inline int ext2fs_needs_large_file_feature(unsigned long long file_size
)
700 return file_size
>= 0x80000000ULL
;
704 extern void ext2fs_clear_block_uninit(ext2_filsys fs
, dgrp_t group
);
705 extern errcode_t
ext2fs_new_inode(ext2_filsys fs
, ext2_ino_t dir
, int mode
,
706 ext2fs_inode_bitmap map
, ext2_ino_t
*ret
);
707 extern errcode_t
ext2fs_new_block(ext2_filsys fs
, blk_t goal
,
708 ext2fs_block_bitmap map
, blk_t
*ret
);
709 extern errcode_t
ext2fs_new_block2(ext2_filsys fs
, blk64_t goal
,
710 ext2fs_block_bitmap map
, blk64_t
*ret
);
711 extern errcode_t
ext2fs_new_block3(ext2_filsys fs
, blk64_t goal
,
712 ext2fs_block_bitmap map
, blk64_t
*ret
,
713 struct blk_alloc_ctx
*ctx
);
714 extern errcode_t
ext2fs_get_free_blocks(ext2_filsys fs
, blk_t start
,
715 blk_t finish
, int num
,
716 ext2fs_block_bitmap map
,
718 extern errcode_t
ext2fs_get_free_blocks2(ext2_filsys fs
, blk64_t start
,
719 blk64_t finish
, int num
,
720 ext2fs_block_bitmap map
,
722 extern errcode_t
ext2fs_alloc_block(ext2_filsys fs
, blk_t goal
,
723 char *block_buf
, blk_t
*ret
);
724 extern errcode_t
ext2fs_alloc_block2(ext2_filsys fs
, blk64_t goal
,
725 char *block_buf
, blk64_t
*ret
);
726 extern errcode_t
ext2fs_alloc_block3(ext2_filsys fs
, blk64_t goal
,
727 char *block_buf
, blk64_t
*ret
,
728 struct blk_alloc_ctx
*ctx
);
730 extern void ext2fs_set_alloc_block_callback(ext2_filsys fs
,
731 errcode_t (*func
)(ext2_filsys fs
,
734 errcode_t (**old
)(ext2_filsys fs
,
737 blk64_t
ext2fs_find_inode_goal(ext2_filsys fs
, ext2_ino_t ino
,
738 struct ext2_inode
*inode
, blk64_t lblk
);
739 extern void ext2fs_set_new_range_callback(ext2_filsys fs
,
740 errcode_t (*func
)(ext2_filsys fs
, int flags
, blk64_t goal
,
741 blk64_t len
, blk64_t
*pblk
, blk64_t
*plen
),
742 errcode_t (**old
)(ext2_filsys fs
, int flags
, blk64_t goal
,
743 blk64_t len
, blk64_t
*pblk
, blk64_t
*plen
));
744 extern void ext2fs_set_block_alloc_stats_range_callback(ext2_filsys fs
,
745 void (*func
)(ext2_filsys fs
, blk64_t blk
,
746 blk_t num
, int inuse
),
747 void (**old
)(ext2_filsys fs
, blk64_t blk
,
748 blk_t num
, int inuse
));
749 #define EXT2_NEWRANGE_FIXED_GOAL (0x1)
750 #define EXT2_NEWRANGE_MIN_LENGTH (0x2)
751 #define EXT2_NEWRANGE_ALL_FLAGS (0x3)
752 errcode_t
ext2fs_new_range(ext2_filsys fs
, int flags
, blk64_t goal
,
753 blk64_t len
, ext2fs_block_bitmap map
, blk64_t
*pblk
,
755 #define EXT2_ALLOCRANGE_FIXED_GOAL (0x1)
756 #define EXT2_ALLOCRANGE_ZERO_BLOCKS (0x2)
757 #define EXT2_ALLOCRANGE_ALL_FLAGS (0x3)
758 errcode_t
ext2fs_alloc_range(ext2_filsys fs
, int flags
, blk64_t goal
,
759 blk_t len
, blk64_t
*ret
);
762 extern int ext2fs_reserve_super_and_bgd(ext2_filsys fs
,
764 ext2fs_block_bitmap bmap
);
765 extern void ext2fs_set_block_alloc_stats_callback(ext2_filsys fs
,
766 void (*func
)(ext2_filsys fs
,
769 void (**old
)(ext2_filsys fs
,
774 void ext2fs_inode_alloc_stats(ext2_filsys fs
, ext2_ino_t ino
, int inuse
);
775 void ext2fs_inode_alloc_stats2(ext2_filsys fs
, ext2_ino_t ino
,
776 int inuse
, int isdir
);
777 void ext2fs_block_alloc_stats(ext2_filsys fs
, blk_t blk
, int inuse
);
778 void ext2fs_block_alloc_stats2(ext2_filsys fs
, blk64_t blk
, int inuse
);
779 void ext2fs_block_alloc_stats_range(ext2_filsys fs
, blk64_t blk
,
780 blk_t num
, int inuse
);
783 extern errcode_t
ext2fs_allocate_tables(ext2_filsys fs
);
784 extern errcode_t
ext2fs_allocate_group_table(ext2_filsys fs
, dgrp_t group
,
785 ext2fs_block_bitmap bmap
);
788 extern errcode_t
ext2fs_u32_list_create(ext2_u32_list
*ret
, int size
);
789 extern errcode_t
ext2fs_u32_list_add(ext2_u32_list bb
, __u32 blk
);
790 extern int ext2fs_u32_list_find(ext2_u32_list bb
, __u32 blk
);
791 extern int ext2fs_u32_list_test(ext2_u32_list bb
, blk_t blk
);
792 extern errcode_t
ext2fs_u32_list_iterate_begin(ext2_u32_list bb
,
793 ext2_u32_iterate
*ret
);
794 extern int ext2fs_u32_list_iterate(ext2_u32_iterate iter
, blk_t
*blk
);
795 extern void ext2fs_u32_list_iterate_end(ext2_u32_iterate iter
);
796 extern errcode_t
ext2fs_u32_copy(ext2_u32_list src
, ext2_u32_list
*dest
);
797 extern int ext2fs_u32_list_equal(ext2_u32_list bb1
, ext2_u32_list bb2
);
799 extern errcode_t
ext2fs_badblocks_list_create(ext2_badblocks_list
*ret
,
801 extern errcode_t
ext2fs_badblocks_list_add(ext2_badblocks_list bb
,
803 extern int ext2fs_badblocks_list_test(ext2_badblocks_list bb
,
805 extern int ext2fs_u32_list_del(ext2_u32_list bb
, __u32 blk
);
806 extern void ext2fs_badblocks_list_del(ext2_u32_list bb
, __u32 blk
);
808 ext2fs_badblocks_list_iterate_begin(ext2_badblocks_list bb
,
809 ext2_badblocks_iterate
*ret
);
810 extern int ext2fs_badblocks_list_iterate(ext2_badblocks_iterate iter
,
812 extern void ext2fs_badblocks_list_iterate_end(ext2_badblocks_iterate iter
);
813 extern errcode_t
ext2fs_badblocks_copy(ext2_badblocks_list src
,
814 ext2_badblocks_list
*dest
);
815 extern int ext2fs_badblocks_equal(ext2_badblocks_list bb1
,
816 ext2_badblocks_list bb2
);
817 extern int ext2fs_u32_list_count(ext2_u32_list bb
);
820 extern errcode_t
badblocks_list_create(badblocks_list
*ret
, int size
);
821 extern errcode_t
badblocks_list_add(badblocks_list bb
, blk_t blk
);
822 extern int badblocks_list_test(badblocks_list bb
, blk_t blk
);
823 extern errcode_t
badblocks_list_iterate_begin(badblocks_list bb
,
824 badblocks_iterate
*ret
);
825 extern int badblocks_list_iterate(badblocks_iterate iter
, blk_t
*blk
);
826 extern void badblocks_list_iterate_end(badblocks_iterate iter
);
827 extern void badblocks_list_free(badblocks_list bb
);
830 extern errcode_t
ext2fs_update_bb_inode(ext2_filsys fs
,
831 ext2_badblocks_list bb_list
);
834 extern void ext2fs_free_block_bitmap(ext2fs_block_bitmap bitmap
);
835 extern void ext2fs_free_inode_bitmap(ext2fs_inode_bitmap bitmap
);
836 extern errcode_t
ext2fs_copy_bitmap(ext2fs_generic_bitmap src
,
837 ext2fs_generic_bitmap
*dest
);
838 extern errcode_t
ext2fs_write_inode_bitmap(ext2_filsys fs
);
839 extern errcode_t
ext2fs_write_block_bitmap (ext2_filsys fs
);
840 extern errcode_t
ext2fs_read_inode_bitmap (ext2_filsys fs
);
841 extern errcode_t
ext2fs_read_block_bitmap(ext2_filsys fs
);
842 extern errcode_t
ext2fs_allocate_block_bitmap(ext2_filsys fs
,
844 ext2fs_block_bitmap
*ret
);
845 extern errcode_t
ext2fs_allocate_subcluster_bitmap(ext2_filsys fs
,
847 ext2fs_block_bitmap
*ret
);
848 extern int ext2fs_get_bitmap_granularity(ext2fs_block_bitmap bitmap
);
849 extern errcode_t
ext2fs_allocate_inode_bitmap(ext2_filsys fs
,
851 ext2fs_inode_bitmap
*ret
);
852 extern errcode_t
ext2fs_fudge_inode_bitmap_end(ext2fs_inode_bitmap bitmap
,
853 ext2_ino_t end
, ext2_ino_t
*oend
);
854 extern errcode_t
ext2fs_fudge_block_bitmap_end(ext2fs_block_bitmap bitmap
,
855 blk_t end
, blk_t
*oend
);
856 extern errcode_t
ext2fs_fudge_block_bitmap_end2(ext2fs_block_bitmap bitmap
,
857 blk64_t end
, blk64_t
*oend
);
858 extern void ext2fs_clear_inode_bitmap(ext2fs_inode_bitmap bitmap
);
859 extern void ext2fs_clear_block_bitmap(ext2fs_block_bitmap bitmap
);
860 extern errcode_t
ext2fs_read_bitmaps(ext2_filsys fs
);
861 extern errcode_t
ext2fs_write_bitmaps(ext2_filsys fs
);
862 extern errcode_t
ext2fs_resize_inode_bitmap(__u32 new_end
, __u32 new_real_end
,
863 ext2fs_inode_bitmap bmap
);
864 extern errcode_t
ext2fs_resize_inode_bitmap2(__u64 new_end
,
866 ext2fs_inode_bitmap bmap
);
867 extern errcode_t
ext2fs_resize_block_bitmap(__u32 new_end
, __u32 new_real_end
,
868 ext2fs_block_bitmap bmap
);
869 extern errcode_t
ext2fs_resize_block_bitmap2(__u64 new_end
,
871 ext2fs_block_bitmap bmap
);
872 extern errcode_t
ext2fs_compare_block_bitmap(ext2fs_block_bitmap bm1
,
873 ext2fs_block_bitmap bm2
);
874 extern errcode_t
ext2fs_compare_inode_bitmap(ext2fs_inode_bitmap bm1
,
875 ext2fs_inode_bitmap bm2
);
876 extern errcode_t
ext2fs_set_inode_bitmap_range(ext2fs_inode_bitmap bmap
,
877 ext2_ino_t start
, unsigned int num
,
879 extern errcode_t
ext2fs_set_inode_bitmap_range2(ext2fs_inode_bitmap bmap
,
880 __u64 start
, size_t num
,
882 extern errcode_t
ext2fs_get_inode_bitmap_range(ext2fs_inode_bitmap bmap
,
883 ext2_ino_t start
, unsigned int num
,
885 extern errcode_t
ext2fs_get_inode_bitmap_range2(ext2fs_inode_bitmap bmap
,
886 __u64 start
, size_t num
,
888 extern errcode_t
ext2fs_set_block_bitmap_range(ext2fs_block_bitmap bmap
,
889 blk_t start
, unsigned int num
,
891 extern errcode_t
ext2fs_set_block_bitmap_range2(ext2fs_block_bitmap bmap
,
892 blk64_t start
, size_t num
,
894 extern errcode_t
ext2fs_get_block_bitmap_range(ext2fs_block_bitmap bmap
,
895 blk_t start
, unsigned int num
,
897 extern errcode_t
ext2fs_get_block_bitmap_range2(ext2fs_block_bitmap bmap
,
898 blk64_t start
, size_t num
,
902 extern __u32
ext2fs_inode_bitmap_checksum(ext2_filsys fs
, dgrp_t group
);
903 extern __u32
ext2fs_block_bitmap_checksum(ext2_filsys fs
, dgrp_t group
);
904 extern dgrp_t
ext2fs_group_of_blk2(ext2_filsys fs
, blk64_t
);
905 extern blk64_t
ext2fs_group_first_block2(ext2_filsys fs
, dgrp_t group
);
906 extern blk64_t
ext2fs_group_last_block2(ext2_filsys fs
, dgrp_t group
);
907 extern int ext2fs_group_blocks_count(ext2_filsys fs
, dgrp_t group
);
908 extern blk64_t
ext2fs_inode_data_blocks2(ext2_filsys fs
,
909 struct ext2_inode
*inode
);
910 extern blk64_t
ext2fs_inode_i_blocks(ext2_filsys fs
,
911 struct ext2_inode
*inode
);
912 extern blk64_t
ext2fs_get_stat_i_blocks(ext2_filsys fs
,
913 struct ext2_inode
*inode
);
914 extern blk64_t
ext2fs_blocks_count(struct ext2_super_block
*super
);
915 extern void ext2fs_blocks_count_set(struct ext2_super_block
*super
,
917 extern void ext2fs_blocks_count_add(struct ext2_super_block
*super
,
919 extern blk64_t
ext2fs_r_blocks_count(struct ext2_super_block
*super
);
920 extern void ext2fs_r_blocks_count_set(struct ext2_super_block
*super
,
922 extern void ext2fs_r_blocks_count_add(struct ext2_super_block
*super
,
924 extern blk64_t
ext2fs_free_blocks_count(struct ext2_super_block
*super
);
925 extern void ext2fs_free_blocks_count_set(struct ext2_super_block
*super
,
927 extern void ext2fs_free_blocks_count_add(struct ext2_super_block
*super
,
929 /* Block group descriptor accessor functions */
930 extern struct ext2_group_desc
*ext2fs_group_desc(ext2_filsys fs
,
931 struct opaque_ext2_group_desc
*gdp
,
933 extern blk64_t
ext2fs_block_bitmap_csum(ext2_filsys fs
, dgrp_t group
);
934 extern blk64_t
ext2fs_block_bitmap_loc(ext2_filsys fs
, dgrp_t group
);
935 extern void ext2fs_block_bitmap_loc_set(ext2_filsys fs
, dgrp_t group
,
937 extern __u32
ext2fs_inode_bitmap_csum(ext2_filsys fs
, dgrp_t group
);
938 extern blk64_t
ext2fs_inode_bitmap_loc(ext2_filsys fs
, dgrp_t group
);
939 extern void ext2fs_inode_bitmap_loc_set(ext2_filsys fs
, dgrp_t group
,
941 extern blk64_t
ext2fs_inode_table_loc(ext2_filsys fs
, dgrp_t group
);
942 extern void ext2fs_inode_table_loc_set(ext2_filsys fs
, dgrp_t group
,
944 extern __u32
ext2fs_bg_free_blocks_count(ext2_filsys fs
, dgrp_t group
);
945 extern void ext2fs_bg_free_blocks_count_set(ext2_filsys fs
, dgrp_t group
,
947 extern __u32
ext2fs_bg_free_inodes_count(ext2_filsys fs
, dgrp_t group
);
948 extern void ext2fs_bg_free_inodes_count_set(ext2_filsys fs
, dgrp_t group
,
950 extern __u32
ext2fs_bg_used_dirs_count(ext2_filsys fs
, dgrp_t group
);
951 extern void ext2fs_bg_used_dirs_count_set(ext2_filsys fs
, dgrp_t group
,
953 extern __u32
ext2fs_bg_itable_unused(ext2_filsys fs
, dgrp_t group
);
954 extern void ext2fs_bg_itable_unused_set(ext2_filsys fs
, dgrp_t group
,
956 extern __u16
ext2fs_bg_flags(ext2_filsys fs
, dgrp_t group
);
957 extern void ext2fs_bg_flags_zap(ext2_filsys fs
, dgrp_t group
);
958 extern int ext2fs_bg_flags_test(ext2_filsys fs
, dgrp_t group
, __u16 bg_flag
);
959 extern void ext2fs_bg_flags_set(ext2_filsys fs
, dgrp_t group
, __u16 bg_flags
);
960 extern void ext2fs_bg_flags_clear(ext2_filsys fs
, dgrp_t group
, __u16 bg_flags
);
961 extern __u16
ext2fs_bg_checksum(ext2_filsys fs
, dgrp_t group
);
962 extern void ext2fs_bg_checksum_set(ext2_filsys fs
, dgrp_t group
, __u16 checksum
);
963 extern blk64_t
ext2fs_file_acl_block(ext2_filsys fs
,
964 const struct ext2_inode
*inode
);
965 extern void ext2fs_file_acl_block_set(ext2_filsys fs
,
966 struct ext2_inode
*inode
, blk64_t blk
);
967 extern errcode_t
ext2fs_inode_size_set(ext2_filsys fs
, struct ext2_inode
*inode
,
971 extern errcode_t
ext2fs_block_iterate(ext2_filsys fs
,
975 int (*func
)(ext2_filsys fs
,
980 errcode_t
ext2fs_block_iterate2(ext2_filsys fs
,
984 int (*func
)(ext2_filsys fs
,
986 e2_blkcnt_t blockcnt
,
991 errcode_t
ext2fs_block_iterate3(ext2_filsys fs
,
995 int (*func
)(ext2_filsys fs
,
997 e2_blkcnt_t blockcnt
,
1004 extern errcode_t
ext2fs_bmap(ext2_filsys fs
, ext2_ino_t ino
,
1005 struct ext2_inode
*inode
,
1006 char *block_buf
, int bmap_flags
,
1007 blk_t block
, blk_t
*phys_blk
);
1008 extern errcode_t
ext2fs_bmap2(ext2_filsys fs
, ext2_ino_t ino
,
1009 struct ext2_inode
*inode
,
1010 char *block_buf
, int bmap_flags
, blk64_t block
,
1011 int *ret_flags
, blk64_t
*phys_blk
);
1012 errcode_t
ext2fs_map_cluster_block(ext2_filsys fs
, ext2_ino_t ino
,
1013 struct ext2_inode
*inode
, blk64_t lblk
,
1018 extern errcode_t
ext2fs_move_blocks(ext2_filsys fs
,
1019 ext2fs_block_bitmap reserve
,
1020 ext2fs_block_bitmap alloc_map
,
1025 extern errcode_t
ext2fs_check_desc(ext2_filsys fs
);
1028 extern errcode_t
ext2fs_close(ext2_filsys fs
);
1029 extern errcode_t
ext2fs_close2(ext2_filsys fs
, int flags
);
1030 extern errcode_t
ext2fs_close_free(ext2_filsys
*fs
);
1031 extern errcode_t
ext2fs_flush(ext2_filsys fs
);
1032 extern errcode_t
ext2fs_flush2(ext2_filsys fs
, int flags
);
1033 extern int ext2fs_bg_has_super(ext2_filsys fs
, dgrp_t group_block
);
1034 extern errcode_t
ext2fs_super_and_bgd_loc2(ext2_filsys fs
,
1036 blk64_t
*ret_super_blk
,
1037 blk64_t
*ret_old_desc_blk
,
1038 blk64_t
*ret_new_desc_blk
,
1039 blk_t
*ret_used_blks
);
1040 extern int ext2fs_super_and_bgd_loc(ext2_filsys fs
,
1042 blk_t
*ret_super_blk
,
1043 blk_t
*ret_old_desc_blk
,
1044 blk_t
*ret_new_desc_blk
,
1046 extern void ext2fs_update_dynamic_rev(ext2_filsys fs
);
1049 extern __u32
ext2fs_crc32_be(__u32 crc
, unsigned char const *p
, size_t len
);
1050 extern __u32
ext2fs_crc32c_le(__u32 crc
, unsigned char const *p
, size_t len
);
1053 extern void ext2fs_init_csum_seed(ext2_filsys fs
);
1054 extern errcode_t
ext2fs_mmp_csum_set(ext2_filsys fs
, struct mmp_struct
*mmp
);
1055 extern int ext2fs_mmp_csum_verify(ext2_filsys
, struct mmp_struct
*mmp
);
1056 extern int ext2fs_verify_csum_type(ext2_filsys fs
, struct ext2_super_block
*sb
);
1057 extern errcode_t
ext2fs_superblock_csum_set(ext2_filsys fs
,
1058 struct ext2_super_block
*sb
);
1059 extern int ext2fs_superblock_csum_verify(ext2_filsys fs
,
1060 struct ext2_super_block
*sb
);
1061 extern errcode_t
ext2fs_ext_attr_block_csum_set(ext2_filsys fs
,
1062 ext2_ino_t inum
, blk64_t block
,
1063 struct ext2_ext_attr_header
*hdr
);
1064 extern int ext2fs_ext_attr_block_csum_verify(ext2_filsys fs
, ext2_ino_t inum
,
1066 struct ext2_ext_attr_header
*hdr
);
1067 #define EXT2_DIRENT_TAIL(block, blocksize) \
1068 ((struct ext2_dir_entry_tail *)(((char *)(block)) + \
1069 (blocksize) - sizeof(struct ext2_dir_entry_tail)))
1071 extern void ext2fs_initialize_dirent_tail(ext2_filsys fs
,
1072 struct ext2_dir_entry_tail
*t
);
1073 extern int ext2fs_dirent_has_tail(ext2_filsys fs
,
1074 struct ext2_dir_entry
*dirent
);
1075 extern int ext2fs_dirent_csum_verify(ext2_filsys fs
, ext2_ino_t inum
,
1076 struct ext2_dir_entry
*dirent
);
1077 extern int ext2fs_dir_block_csum_verify(ext2_filsys fs
, ext2_ino_t inum
,
1078 struct ext2_dir_entry
*dirent
);
1079 extern errcode_t
ext2fs_dir_block_csum_set(ext2_filsys fs
, ext2_ino_t inum
,
1080 struct ext2_dir_entry
*dirent
);
1081 extern errcode_t
ext2fs_get_dx_countlimit(ext2_filsys fs
,
1082 struct ext2_dir_entry
*dirent
,
1083 struct ext2_dx_countlimit
**cc
,
1085 extern errcode_t
ext2fs_extent_block_csum_set(ext2_filsys fs
,
1087 struct ext3_extent_header
*eh
);
1088 extern int ext2fs_extent_block_csum_verify(ext2_filsys fs
,
1090 struct ext3_extent_header
*eh
);
1091 extern errcode_t
ext2fs_block_bitmap_csum_set(ext2_filsys fs
, dgrp_t group
,
1092 char *bitmap
, int size
);
1093 extern int ext2fs_block_bitmap_csum_verify(ext2_filsys fs
, dgrp_t group
,
1094 char *bitmap
, int size
);
1095 extern errcode_t
ext2fs_inode_bitmap_csum_set(ext2_filsys fs
, dgrp_t group
,
1096 char *bitmap
, int size
);
1097 extern int ext2fs_inode_bitmap_csum_verify(ext2_filsys fs
, dgrp_t group
,
1098 char *bitmap
, int size
);
1099 extern errcode_t
ext2fs_inode_csum_set(ext2_filsys fs
, ext2_ino_t inum
,
1100 struct ext2_inode_large
*inode
);
1101 extern int ext2fs_inode_csum_verify(ext2_filsys fs
, ext2_ino_t inum
,
1102 struct ext2_inode_large
*inode
);
1103 extern void ext2fs_group_desc_csum_set(ext2_filsys fs
, dgrp_t group
);
1104 extern int ext2fs_group_desc_csum_verify(ext2_filsys fs
, dgrp_t group
);
1105 extern errcode_t
ext2fs_set_gdt_csum(ext2_filsys fs
);
1106 extern __u16
ext2fs_group_desc_csum(ext2_filsys fs
, dgrp_t group
);
1109 extern errcode_t
ext2fs_init_dblist(ext2_filsys fs
, ext2_dblist
*ret_dblist
);
1110 extern errcode_t
ext2fs_add_dir_block(ext2_dblist dblist
, ext2_ino_t ino
,
1111 blk_t blk
, int blockcnt
);
1112 extern errcode_t
ext2fs_add_dir_block2(ext2_dblist dblist
, ext2_ino_t ino
,
1113 blk64_t blk
, e2_blkcnt_t blockcnt
);
1114 extern void ext2fs_dblist_sort(ext2_dblist dblist
,
1115 EXT2_QSORT_TYPE (*sortfunc
)(const void *,
1117 extern void ext2fs_dblist_sort2(ext2_dblist dblist
,
1118 EXT2_QSORT_TYPE (*sortfunc
)(const void *,
1120 extern errcode_t
ext2fs_dblist_iterate(ext2_dblist dblist
,
1121 int (*func
)(ext2_filsys fs
, struct ext2_db_entry
*db_info
,
1124 extern errcode_t
ext2fs_dblist_iterate2(ext2_dblist dblist
,
1125 int (*func
)(ext2_filsys fs
, struct ext2_db_entry2
*db_info
,
1128 extern errcode_t
ext2fs_dblist_iterate3(ext2_dblist dblist
,
1129 int (*func
)(ext2_filsys fs
, struct ext2_db_entry2
*db_info
,
1131 unsigned long long start
,
1132 unsigned long long count
,
1134 extern errcode_t
ext2fs_set_dir_block(ext2_dblist dblist
, ext2_ino_t ino
,
1135 blk_t blk
, int blockcnt
);
1136 extern errcode_t
ext2fs_set_dir_block2(ext2_dblist dblist
, ext2_ino_t ino
,
1137 blk64_t blk
, e2_blkcnt_t blockcnt
);
1138 extern errcode_t
ext2fs_copy_dblist(ext2_dblist src
,
1140 extern int ext2fs_dblist_count(ext2_dblist dblist
);
1141 extern blk64_t
ext2fs_dblist_count2(ext2_dblist dblist
);
1142 extern errcode_t
ext2fs_dblist_get_last(ext2_dblist dblist
,
1143 struct ext2_db_entry
**entry
);
1144 extern errcode_t
ext2fs_dblist_get_last2(ext2_dblist dblist
,
1145 struct ext2_db_entry2
**entry
);
1146 extern errcode_t
ext2fs_dblist_drop_last(ext2_dblist dblist
);
1150 ext2fs_dblist_dir_iterate(ext2_dblist dblist
,
1153 int (*func
)(ext2_ino_t dir
,
1155 struct ext2_dir_entry
*dirent
,
1163 /* digest_encode.c */
1164 #define EXT2FS_DIGEST_SIZE EXT2FS_SHA256_LENGTH
1165 extern int ext2fs_digest_encode(const char *src
, int len
, char *dst
);
1166 extern int ext2fs_digest_decode(const char *src
, int len
, char *dst
);
1170 extern errcode_t
ext2fs_read_dir_block(ext2_filsys fs
, blk_t block
,
1172 extern errcode_t
ext2fs_read_dir_block2(ext2_filsys fs
, blk_t block
,
1173 void *buf
, int flags
);
1174 extern errcode_t
ext2fs_read_dir_block3(ext2_filsys fs
, blk64_t block
,
1175 void *buf
, int flags
);
1176 extern errcode_t
ext2fs_read_dir_block4(ext2_filsys fs
, blk64_t block
,
1177 void *buf
, int flags
, ext2_ino_t ino
);
1178 extern errcode_t
ext2fs_write_dir_block(ext2_filsys fs
, blk_t block
,
1180 extern errcode_t
ext2fs_write_dir_block2(ext2_filsys fs
, blk_t block
,
1181 void *buf
, int flags
);
1182 extern errcode_t
ext2fs_write_dir_block3(ext2_filsys fs
, blk64_t block
,
1183 void *buf
, int flags
);
1184 extern errcode_t
ext2fs_write_dir_block4(ext2_filsys fs
, blk64_t block
,
1185 void *buf
, int flags
, ext2_ino_t ino
);
1188 extern errcode_t
ext2fs_dirhash(int version
, const char *name
, int len
,
1190 ext2_dirhash_t
*ret_hash
,
1191 ext2_dirhash_t
*ret_minor_hash
);
1193 extern errcode_t
ext2fs_dirhash2(int version
, const char *name
, int len
,
1194 const struct ext2fs_nls_table
*charset
,
1197 ext2_dirhash_t
*ret_hash
,
1198 ext2_dirhash_t
*ret_minor_hash
);
1201 extern errcode_t
ext2fs_get_rec_len(ext2_filsys fs
,
1202 struct ext2_dir_entry
*dirent
,
1203 unsigned int *rec_len
);
1204 extern errcode_t
ext2fs_set_rec_len(ext2_filsys fs
,
1206 struct ext2_dir_entry
*dirent
);
1207 extern errcode_t
ext2fs_dir_iterate(ext2_filsys fs
,
1211 int (*func
)(struct ext2_dir_entry
*dirent
,
1217 extern errcode_t
ext2fs_dir_iterate2(ext2_filsys fs
,
1221 int (*func
)(ext2_ino_t dir
,
1223 struct ext2_dir_entry
*dirent
,
1231 extern errcode_t
ext2fs_dup_handle(ext2_filsys src
, ext2_filsys
*dest
);
1234 extern errcode_t
ext2fs_expand_dir(ext2_filsys fs
, ext2_ino_t dir
);
1237 extern __u32
ext2fs_ext_attr_hash_entry(struct ext2_ext_attr_entry
*entry
,
1239 extern errcode_t
ext2fs_ext_attr_hash_entry2(ext2_filsys fs
,
1240 struct ext2_ext_attr_entry
*entry
,
1241 void *data
, __u32
*hash
);
1242 extern errcode_t
ext2fs_read_ext_attr(ext2_filsys fs
, blk_t block
, void *buf
);
1243 extern errcode_t
ext2fs_read_ext_attr2(ext2_filsys fs
, blk64_t block
,
1245 extern errcode_t
ext2fs_read_ext_attr3(ext2_filsys fs
, blk64_t block
,
1246 void *buf
, ext2_ino_t inum
);
1247 extern errcode_t
ext2fs_write_ext_attr(ext2_filsys fs
, blk_t block
,
1249 extern errcode_t
ext2fs_write_ext_attr2(ext2_filsys fs
, blk64_t block
,
1251 extern errcode_t
ext2fs_write_ext_attr3(ext2_filsys fs
, blk64_t block
,
1252 void *buf
, ext2_ino_t inum
);
1253 extern errcode_t
ext2fs_adjust_ea_refcount(ext2_filsys fs
, blk_t blk
,
1255 int adjust
, __u32
*newcount
);
1256 extern errcode_t
ext2fs_adjust_ea_refcount2(ext2_filsys fs
, blk64_t blk
,
1258 int adjust
, __u32
*newcount
);
1259 extern errcode_t
ext2fs_adjust_ea_refcount3(ext2_filsys fs
, blk64_t blk
,
1261 int adjust
, __u32
*newcount
,
1263 errcode_t
ext2fs_xattrs_write(struct ext2_xattr_handle
*handle
);
1264 errcode_t
ext2fs_xattrs_read(struct ext2_xattr_handle
*handle
);
1265 errcode_t
ext2fs_xattrs_iterate(struct ext2_xattr_handle
*h
,
1266 int (*func
)(char *name
, char *value
,
1267 size_t value_len
, void *data
),
1269 errcode_t
ext2fs_xattr_get(struct ext2_xattr_handle
*h
, const char *key
,
1270 void **value
, size_t *value_len
);
1271 errcode_t
ext2fs_xattr_set(struct ext2_xattr_handle
*handle
,
1275 errcode_t
ext2fs_xattr_remove(struct ext2_xattr_handle
*handle
,
1277 errcode_t
ext2fs_xattrs_open(ext2_filsys fs
, ext2_ino_t ino
,
1278 struct ext2_xattr_handle
**handle
);
1279 errcode_t
ext2fs_xattrs_close(struct ext2_xattr_handle
**handle
);
1280 errcode_t
ext2fs_free_ext_attr(ext2_filsys fs
, ext2_ino_t ino
,
1281 struct ext2_inode_large
*inode
);
1282 errcode_t
ext2fs_xattrs_count(struct ext2_xattr_handle
*handle
, size_t *count
);
1283 errcode_t
ext2fs_xattr_inode_max_size(ext2_filsys fs
, ext2_ino_t ino
,
1285 #define XATTR_HANDLE_FLAG_RAW 0x0001
1286 errcode_t
ext2fs_xattrs_flags(struct ext2_xattr_handle
*handle
,
1287 unsigned int *new_flags
, unsigned int *old_flags
);
1288 extern void ext2fs_ext_attr_block_rehash(struct ext2_ext_attr_header
*header
,
1289 struct ext2_ext_attr_entry
*end
);
1290 extern __u32
ext2fs_get_ea_inode_hash(struct ext2_inode
*inode
);
1291 extern void ext2fs_set_ea_inode_hash(struct ext2_inode
*inode
, __u32 hash
);
1292 extern __u64
ext2fs_get_ea_inode_ref(struct ext2_inode
*inode
);
1293 extern void ext2fs_set_ea_inode_ref(struct ext2_inode
*inode
, __u64 ref_count
);
1296 extern errcode_t
ext2fs_extent_header_verify(void *ptr
, int size
);
1297 extern errcode_t
ext2fs_extent_open(ext2_filsys fs
, ext2_ino_t ino
,
1298 ext2_extent_handle_t
*handle
);
1299 extern errcode_t
ext2fs_extent_open2(ext2_filsys fs
, ext2_ino_t ino
,
1300 struct ext2_inode
*inode
,
1301 ext2_extent_handle_t
*ret_handle
);
1302 extern void ext2fs_extent_free(ext2_extent_handle_t handle
);
1303 extern errcode_t
ext2fs_extent_get(ext2_extent_handle_t handle
,
1304 int flags
, struct ext2fs_extent
*extent
);
1305 extern errcode_t
ext2fs_extent_node_split(ext2_extent_handle_t handle
);
1306 extern errcode_t
ext2fs_extent_replace(ext2_extent_handle_t handle
, int flags
,
1307 struct ext2fs_extent
*extent
);
1308 extern errcode_t
ext2fs_extent_insert(ext2_extent_handle_t handle
, int flags
,
1309 struct ext2fs_extent
*extent
);
1310 extern errcode_t
ext2fs_extent_set_bmap(ext2_extent_handle_t handle
,
1311 blk64_t logical
, blk64_t physical
,
1313 extern errcode_t
ext2fs_extent_delete(ext2_extent_handle_t handle
, int flags
);
1314 extern errcode_t
ext2fs_extent_get_info(ext2_extent_handle_t handle
,
1315 struct ext2_extent_info
*info
);
1316 extern errcode_t
ext2fs_extent_goto(ext2_extent_handle_t handle
,
1318 extern errcode_t
ext2fs_extent_goto2(ext2_extent_handle_t handle
,
1319 int leaf_level
, blk64_t blk
);
1320 extern errcode_t
ext2fs_extent_fix_parents(ext2_extent_handle_t handle
);
1321 extern size_t ext2fs_max_extent_depth(ext2_extent_handle_t handle
);
1322 extern errcode_t
ext2fs_fix_extents_checksums(ext2_filsys fs
, ext2_ino_t ino
,
1323 struct ext2_inode
*inode
);
1326 #define EXT2_FALLOCATE_ZERO_BLOCKS (0x1)
1327 #define EXT2_FALLOCATE_FORCE_INIT (0x2)
1328 #define EXT2_FALLOCATE_FORCE_UNINIT (0x4)
1329 #define EXT2_FALLOCATE_INIT_BEYOND_EOF (0x8)
1330 #define EXT2_FALLOCATE_ALL_FLAGS (0xF)
1331 errcode_t
ext2fs_fallocate(ext2_filsys fs
, int flags
, ext2_ino_t ino
,
1332 struct ext2_inode
*inode
, blk64_t goal
,
1333 blk64_t start
, blk64_t len
);
1336 extern errcode_t
ext2fs_file_open2(ext2_filsys fs
, ext2_ino_t ino
,
1337 struct ext2_inode
*inode
,
1338 int flags
, ext2_file_t
*ret
);
1339 extern errcode_t
ext2fs_file_open(ext2_filsys fs
, ext2_ino_t ino
,
1340 int flags
, ext2_file_t
*ret
);
1341 extern ext2_filsys
ext2fs_file_get_fs(ext2_file_t file
);
1342 struct ext2_inode
*ext2fs_file_get_inode(ext2_file_t file
);
1343 extern ext2_ino_t
ext2fs_file_get_inode_num(ext2_file_t file
);
1344 extern errcode_t
ext2fs_file_close(ext2_file_t file
);
1345 extern errcode_t
ext2fs_file_flush(ext2_file_t file
);
1346 extern errcode_t
ext2fs_file_read(ext2_file_t file
, void *buf
,
1347 unsigned int wanted
, unsigned int *got
);
1348 extern errcode_t
ext2fs_file_write(ext2_file_t file
, const void *buf
,
1349 unsigned int nbytes
, unsigned int *written
);
1350 extern errcode_t
ext2fs_file_llseek(ext2_file_t file
, __u64 offset
,
1351 int whence
, __u64
*ret_pos
);
1352 extern errcode_t
ext2fs_file_lseek(ext2_file_t file
, ext2_off_t offset
,
1353 int whence
, ext2_off_t
*ret_pos
);
1354 errcode_t
ext2fs_file_get_lsize(ext2_file_t file
, __u64
*ret_size
);
1355 extern ext2_off_t
ext2fs_file_get_size(ext2_file_t file
);
1356 extern errcode_t
ext2fs_file_set_size(ext2_file_t file
, ext2_off_t size
);
1357 extern errcode_t
ext2fs_file_set_size2(ext2_file_t file
, ext2_off64_t size
);
1360 extern char *ext2fs_find_block_device(dev_t device
);
1363 extern errcode_t
ext2fs_sync_device(int fd
, int flushb
);
1366 extern void ext2fs_free(ext2_filsys fs
);
1367 extern void ext2fs_free_dblist(ext2_dblist dblist
);
1368 extern void ext2fs_badblocks_list_free(ext2_badblocks_list bb
);
1369 extern void ext2fs_u32_list_free(ext2_u32_list bb
);
1372 extern void ext2fs_free_generic_bitmap(ext2fs_inode_bitmap bitmap
);
1373 extern errcode_t
ext2fs_make_generic_bitmap(errcode_t magic
, ext2_filsys fs
,
1374 __u32 start
, __u32 end
,
1376 const char *descr
, char *init_map
,
1377 ext2fs_generic_bitmap
*ret
);
1378 extern errcode_t
ext2fs_allocate_generic_bitmap(__u32 start
,
1382 ext2fs_generic_bitmap
*ret
);
1383 extern errcode_t
ext2fs_copy_generic_bitmap(ext2fs_generic_bitmap src
,
1384 ext2fs_generic_bitmap
*dest
);
1385 extern void ext2fs_clear_generic_bitmap(ext2fs_generic_bitmap bitmap
);
1386 extern errcode_t
ext2fs_fudge_generic_bitmap_end(ext2fs_inode_bitmap bitmap
,
1391 extern void ext2fs_set_generic_bitmap_padding(ext2fs_generic_bitmap map
);
1392 extern errcode_t
ext2fs_resize_generic_bitmap(errcode_t magic
,
1395 ext2fs_generic_bitmap bmap
);
1396 extern errcode_t
ext2fs_compare_generic_bitmap(errcode_t magic
, errcode_t neq
,
1397 ext2fs_generic_bitmap bm1
,
1398 ext2fs_generic_bitmap bm2
);
1399 extern errcode_t
ext2fs_get_generic_bitmap_range(ext2fs_generic_bitmap bmap
,
1401 __u32 start
, __u32 num
,
1403 extern errcode_t
ext2fs_set_generic_bitmap_range(ext2fs_generic_bitmap bmap
,
1405 __u32 start
, __u32 num
,
1407 extern errcode_t
ext2fs_find_first_zero_generic_bitmap(ext2fs_generic_bitmap bitmap
,
1408 __u32 start
, __u32 end
,
1410 extern errcode_t
ext2fs_find_first_set_generic_bitmap(ext2fs_generic_bitmap bitmap
,
1411 __u32 start
, __u32 end
,
1414 /* gen_bitmap64.c */
1415 void ext2fs_free_generic_bmap(ext2fs_generic_bitmap bmap
);
1416 errcode_t
ext2fs_alloc_generic_bmap(ext2_filsys fs
, errcode_t magic
,
1417 int type
, __u64 start
, __u64 end
,
1420 ext2fs_generic_bitmap
*ret
);
1421 errcode_t
ext2fs_copy_generic_bmap(ext2fs_generic_bitmap src
,
1422 ext2fs_generic_bitmap
*dest
);
1423 void ext2fs_clear_generic_bmap(ext2fs_generic_bitmap bitmap
);
1424 errcode_t
ext2fs_fudge_generic_bmap_end(ext2fs_generic_bitmap bitmap
,
1426 __u64 end
, __u64
*oend
);
1427 void ext2fs_set_generic_bmap_padding(ext2fs_generic_bitmap bmap
);
1428 errcode_t
ext2fs_resize_generic_bmap(ext2fs_generic_bitmap bmap
,
1430 __u64 new_real_end
);
1431 errcode_t
ext2fs_compare_generic_bmap(errcode_t neq
,
1432 ext2fs_generic_bitmap bm1
,
1433 ext2fs_generic_bitmap bm2
);
1434 errcode_t
ext2fs_get_generic_bmap_range(ext2fs_generic_bitmap bmap
,
1435 __u64 start
, unsigned int num
,
1437 errcode_t
ext2fs_set_generic_bmap_range(ext2fs_generic_bitmap bmap
,
1438 __u64 start
, unsigned int num
,
1440 errcode_t
ext2fs_convert_subcluster_bitmap(ext2_filsys fs
,
1441 ext2fs_block_bitmap
*bitmap
);
1443 /* get_num_dirs.c */
1444 extern errcode_t
ext2fs_get_num_dirs(ext2_filsys fs
, ext2_ino_t
*ret_num_dirs
);
1447 extern errcode_t
ext2fs_get_device_size(const char *file
, int blocksize
,
1449 extern errcode_t
ext2fs_get_device_size2(const char *file
, int blocksize
,
1450 blk64_t
*retblocks
);
1453 extern int ext2fs_get_dio_alignment(int fd
);
1454 errcode_t
ext2fs_get_device_sectsize(const char *file
, int *sectsize
);
1455 errcode_t
ext2fs_get_device_phys_sectsize(const char *file
, int *sectsize
);
1458 errcode_t
ext2fs_iblk_add_blocks(ext2_filsys fs
, struct ext2_inode
*inode
,
1459 blk64_t num_blocks
);
1460 errcode_t
ext2fs_iblk_sub_blocks(ext2_filsys fs
, struct ext2_inode
*inode
,
1461 blk64_t num_blocks
);
1462 errcode_t
ext2fs_iblk_set(ext2_filsys fs
, struct ext2_inode
*inode
, blk64_t b
);
1465 extern errcode_t
ext2fs_image_inode_write(ext2_filsys fs
, int fd
, int flags
);
1466 extern errcode_t
ext2fs_image_inode_read(ext2_filsys fs
, int fd
, int flags
);
1467 extern errcode_t
ext2fs_image_super_write(ext2_filsys fs
, int fd
, int flags
);
1468 extern errcode_t
ext2fs_image_super_read(ext2_filsys fs
, int fd
, int flags
);
1469 extern errcode_t
ext2fs_image_bitmap_write(ext2_filsys fs
, int fd
, int flags
);
1470 extern errcode_t
ext2fs_image_bitmap_read(ext2_filsys fs
, int fd
, int flags
);
1473 errcode_t
ext2fs_read_ind_block(ext2_filsys fs
, blk_t blk
, void *buf
);
1474 errcode_t
ext2fs_write_ind_block(ext2_filsys fs
, blk_t blk
, void *buf
);
1477 extern errcode_t
ext2fs_initialize(const char *name
, int flags
,
1478 struct ext2_super_block
*param
,
1479 io_manager manager
, ext2_filsys
*ret_fs
);
1482 extern void ext2fs_free_icount(ext2_icount_t icount
);
1483 extern errcode_t
ext2fs_create_icount_tdb(ext2_filsys fs
, char *tdb_dir
,
1484 int flags
, ext2_icount_t
*ret
);
1485 extern errcode_t
ext2fs_create_icount2(ext2_filsys fs
, int flags
,
1487 ext2_icount_t hint
, ext2_icount_t
*ret
);
1488 extern errcode_t
ext2fs_create_icount(ext2_filsys fs
, int flags
,
1490 ext2_icount_t
*ret
);
1491 extern errcode_t
ext2fs_icount_fetch(ext2_icount_t icount
, ext2_ino_t ino
,
1493 extern errcode_t
ext2fs_icount_increment(ext2_icount_t icount
, ext2_ino_t ino
,
1495 extern errcode_t
ext2fs_icount_decrement(ext2_icount_t icount
, ext2_ino_t ino
,
1497 extern errcode_t
ext2fs_icount_store(ext2_icount_t icount
, ext2_ino_t ino
,
1499 extern ext2_ino_t
ext2fs_get_icount_size(ext2_icount_t icount
);
1500 errcode_t
ext2fs_icount_validate(ext2_icount_t icount
, FILE *);
1504 extern errcode_t
ext2fs_get_memalign(unsigned long size
,
1505 unsigned long align
, void *ptr
);
1508 extern errcode_t
ext2fs_inline_data_init(ext2_filsys fs
, ext2_ino_t ino
);
1509 extern errcode_t
ext2fs_inline_data_size(ext2_filsys fs
, ext2_ino_t ino
,
1511 extern errcode_t
ext2fs_inline_data_get(ext2_filsys fs
, ext2_ino_t ino
,
1512 struct ext2_inode
*inode
,
1513 void *buf
, size_t *size
);
1514 extern errcode_t
ext2fs_inline_data_set(ext2_filsys fs
, ext2_ino_t ino
,
1515 struct ext2_inode
*inode
,
1516 void *buf
, size_t size
);
1519 extern errcode_t
ext2fs_create_inode_cache(ext2_filsys fs
,
1520 unsigned int cache_size
);
1521 extern void ext2fs_free_inode_cache(struct ext2_inode_cache
*icache
);
1522 extern errcode_t
ext2fs_flush_icache(ext2_filsys fs
);
1523 extern errcode_t
ext2fs_get_next_inode_full(ext2_inode_scan scan
,
1525 struct ext2_inode
*inode
,
1527 #define EXT2_INODE_SCAN_DEFAULT_BUFFER_BLOCKS 8
1528 extern errcode_t
ext2fs_open_inode_scan(ext2_filsys fs
, int buffer_blocks
,
1529 ext2_inode_scan
*ret_scan
);
1530 extern void ext2fs_close_inode_scan(ext2_inode_scan scan
);
1531 extern errcode_t
ext2fs_get_next_inode(ext2_inode_scan scan
, ext2_ino_t
*ino
,
1532 struct ext2_inode
*inode
);
1533 extern errcode_t
ext2fs_inode_scan_goto_blockgroup(ext2_inode_scan scan
,
1535 extern void ext2fs_set_inode_callback
1536 (ext2_inode_scan scan
,
1537 errcode_t (*done_group
)(ext2_filsys fs
,
1538 ext2_inode_scan scan
,
1541 void *done_group_data
);
1542 extern int ext2fs_inode_scan_flags(ext2_inode_scan scan
, int set_flags
,
1544 extern errcode_t
ext2fs_read_inode_full(ext2_filsys fs
, ext2_ino_t ino
,
1545 struct ext2_inode
* inode
,
1547 extern errcode_t
ext2fs_read_inode(ext2_filsys fs
, ext2_ino_t ino
,
1548 struct ext2_inode
* inode
);
1549 extern errcode_t
ext2fs_read_inode2(ext2_filsys fs
, ext2_ino_t ino
,
1550 struct ext2_inode
* inode
,
1551 int bufsize
, int flags
);
1552 extern errcode_t
ext2fs_write_inode_full(ext2_filsys fs
, ext2_ino_t ino
,
1553 struct ext2_inode
* inode
,
1555 extern errcode_t
ext2fs_write_inode(ext2_filsys fs
, ext2_ino_t ino
,
1556 struct ext2_inode
* inode
);
1557 extern errcode_t
ext2fs_write_inode2(ext2_filsys fs
, ext2_ino_t ino
,
1558 struct ext2_inode
* inode
,
1559 int bufsize
, int flags
);
1560 extern errcode_t
ext2fs_write_new_inode(ext2_filsys fs
, ext2_ino_t ino
,
1561 struct ext2_inode
* inode
);
1562 extern errcode_t
ext2fs_get_blocks(ext2_filsys fs
, ext2_ino_t ino
, blk_t
*blocks
);
1563 extern errcode_t
ext2fs_check_directory(ext2_filsys fs
, ext2_ino_t ino
);
1566 extern io_manager inode_io_manager
;
1567 extern errcode_t
ext2fs_inode_io_intern(ext2_filsys fs
, ext2_ino_t ino
,
1569 extern errcode_t
ext2fs_inode_io_intern2(ext2_filsys fs
, ext2_ino_t ino
,
1570 struct ext2_inode
*inode
,
1574 extern errcode_t
ext2fs_check_if_mounted(const char *file
, int *mount_flags
);
1575 extern errcode_t
ext2fs_check_mount_point(const char *device
, int *mount_flags
,
1576 char *mtpt
, int mtlen
);
1580 * NOTE: This function removes from an inode the blocks "start", "end", and
1581 * every block in between.
1583 extern errcode_t
ext2fs_punch(ext2_filsys fs
, ext2_ino_t ino
,
1584 struct ext2_inode
*inode
,
1585 char *block_buf
, blk64_t start
,
1589 extern errcode_t
ext2fs_lookup(ext2_filsys fs
, ext2_ino_t dir
, const char *name
,
1590 int namelen
, char *buf
, ext2_ino_t
*inode
);
1591 extern errcode_t
ext2fs_namei(ext2_filsys fs
, ext2_ino_t root
, ext2_ino_t cwd
,
1592 const char *name
, ext2_ino_t
*inode
);
1593 errcode_t
ext2fs_namei_follow(ext2_filsys fs
, ext2_ino_t root
, ext2_ino_t cwd
,
1594 const char *name
, ext2_ino_t
*inode
);
1595 extern errcode_t
ext2fs_follow_link(ext2_filsys fs
, ext2_ino_t root
, ext2_ino_t cwd
,
1596 ext2_ino_t inode
, ext2_ino_t
*res_inode
);
1599 int ext2fs_native_flag(void);
1602 extern errcode_t
ext2fs_new_dir_block(ext2_filsys fs
, ext2_ino_t dir_ino
,
1603 ext2_ino_t parent_ino
, char **block
);
1604 extern errcode_t
ext2fs_new_dir_inline_data(ext2_filsys fs
, ext2_ino_t dir_ino
,
1605 ext2_ino_t parent_ino
, __u32
*iblock
);
1608 extern const struct ext2fs_nls_table
*ext2fs_load_nls_table(int encoding
);
1611 extern errcode_t
ext2fs_mkdir(ext2_filsys fs
, ext2_ino_t parent
, ext2_ino_t inum
,
1615 extern errcode_t
ext2fs_zero_blocks(ext2_filsys fs
, blk_t blk
, int num
,
1616 blk_t
*ret_blk
, int *ret_count
);
1617 extern errcode_t
ext2fs_zero_blocks2(ext2_filsys fs
, blk64_t blk
, int num
,
1618 blk64_t
*ret_blk
, int *ret_count
);
1619 extern errcode_t
ext2fs_create_journal_superblock(ext2_filsys fs
,
1620 __u32 num_blocks
, int flags
,
1622 extern errcode_t
ext2fs_add_journal_device(ext2_filsys fs
,
1623 ext2_filsys journal_dev
);
1624 extern errcode_t
ext2fs_add_journal_inode(ext2_filsys fs
, blk_t num_blocks
,
1626 extern errcode_t
ext2fs_add_journal_inode2(ext2_filsys fs
, blk_t num_blocks
,
1627 blk64_t goal
, int flags
);
1628 extern int ext2fs_default_journal_size(__u64 num_blocks
);
1629 extern int ext2fs_journal_sb_start(int blocksize
);
1632 extern errcode_t
ext2fs_open(const char *name
, int flags
, int superblock
,
1633 unsigned int block_size
, io_manager manager
,
1634 ext2_filsys
*ret_fs
);
1635 extern errcode_t
ext2fs_open2(const char *name
, const char *io_options
,
1636 int flags
, int superblock
,
1637 unsigned int block_size
, io_manager manager
,
1638 ext2_filsys
*ret_fs
);
1640 * The dgrp_t argument to these two functions is not actually a group number
1641 * but a block number offset within a group table! Convert with the formula
1642 * (group_number / groups_per_block).
1644 extern blk64_t
ext2fs_descriptor_block_loc2(ext2_filsys fs
,
1645 blk64_t group_block
, dgrp_t i
);
1646 extern blk_t
ext2fs_descriptor_block_loc(ext2_filsys fs
, blk_t group_block
,
1648 errcode_t
ext2fs_get_data_io(ext2_filsys fs
, io_channel
*old_io
);
1649 errcode_t
ext2fs_set_data_io(ext2_filsys fs
, io_channel new_io
);
1650 errcode_t
ext2fs_rewrite_to_io(ext2_filsys fs
, io_channel new_io
);
1652 /* get_pathname.c */
1653 extern errcode_t
ext2fs_get_pathname(ext2_filsys fs
, ext2_ino_t dir
, ext2_ino_t ino
,
1657 errcode_t
ext2fs_link(ext2_filsys fs
, ext2_ino_t dir
, const char *name
,
1658 ext2_ino_t ino
, int flags
);
1659 errcode_t
ext2fs_unlink(ext2_filsys fs
, ext2_ino_t dir
, const char *name
,
1660 ext2_ino_t ino
, int flags
);
1663 errcode_t
ext2fs_symlink(ext2_filsys fs
, ext2_ino_t parent
, ext2_ino_t ino
,
1664 const char *name
, const char *target
);
1665 int ext2fs_is_fast_symlink(struct ext2_inode
*inode
);
1668 errcode_t
ext2fs_mmp_read(ext2_filsys fs
, blk64_t mmp_blk
, void *buf
);
1669 errcode_t
ext2fs_mmp_write(ext2_filsys fs
, blk64_t mmp_blk
, void *buf
);
1670 errcode_t
ext2fs_mmp_clear(ext2_filsys fs
);
1671 errcode_t
ext2fs_mmp_init(ext2_filsys fs
);
1672 errcode_t
ext2fs_mmp_start(ext2_filsys fs
);
1673 errcode_t
ext2fs_mmp_update(ext2_filsys fs
);
1674 errcode_t
ext2fs_mmp_update2(ext2_filsys fs
, int immediately
);
1675 errcode_t
ext2fs_mmp_stop(ext2_filsys fs
);
1676 unsigned ext2fs_mmp_new_seq(void);
1679 extern errcode_t
ext2fs_read_bb_inode(ext2_filsys fs
,
1680 ext2_badblocks_list
*bb_list
);
1682 /* read_bb_file.c */
1683 extern errcode_t
ext2fs_read_bb_FILE2(ext2_filsys fs
, FILE *f
,
1684 ext2_badblocks_list
*bb_list
,
1686 void (*invalid
)(ext2_filsys fs
,
1690 extern errcode_t
ext2fs_read_bb_FILE(ext2_filsys fs
, FILE *f
,
1691 ext2_badblocks_list
*bb_list
,
1692 void (*invalid
)(ext2_filsys fs
,
1696 extern errcode_t
ext2fs_create_resize_inode(ext2_filsys fs
);
1699 #define EXT2FS_SHA256_LENGTH 32
1701 extern void ext2fs_sha256(const unsigned char *in
, unsigned long in_size
,
1702 unsigned char out
[EXT2FS_SHA256_LENGTH
]);
1706 #define EXT2FS_SHA512_LENGTH 64
1707 extern void ext2fs_sha512(const unsigned char *in
, unsigned long in_size
,
1708 unsigned char out
[EXT2FS_SHA512_LENGTH
]);
1711 extern errcode_t
ext2fs_dirent_swab_in2(ext2_filsys fs
, char *buf
, size_t size
,
1713 extern errcode_t
ext2fs_dirent_swab_in(ext2_filsys fs
, char *buf
, int flags
);
1714 extern errcode_t
ext2fs_dirent_swab_out2(ext2_filsys fs
, char *buf
, size_t size
,
1716 extern errcode_t
ext2fs_dirent_swab_out(ext2_filsys fs
, char *buf
, int flags
);
1717 extern void ext2fs_swap_ext_attr(char *to
, char *from
, int bufsize
,
1719 extern void ext2fs_swap_ext_attr_header(struct ext2_ext_attr_header
*to_header
,
1720 struct ext2_ext_attr_header
*from_hdr
);
1721 extern void ext2fs_swap_ext_attr_entry(struct ext2_ext_attr_entry
*to_entry
,
1722 struct ext2_ext_attr_entry
*from_entry
);
1723 extern void ext2fs_swap_super(struct ext2_super_block
* super
);
1724 extern void ext2fs_swap_group_desc(struct ext2_group_desc
*gdp
);
1725 extern void ext2fs_swap_group_desc2(ext2_filsys
, struct ext2_group_desc
*gdp
);
1726 extern void ext2fs_swap_inode_full(ext2_filsys fs
, struct ext2_inode_large
*t
,
1727 struct ext2_inode_large
*f
, int hostorder
,
1729 extern void ext2fs_swap_inode(ext2_filsys fs
,struct ext2_inode
*t
,
1730 struct ext2_inode
*f
, int hostorder
);
1731 extern void ext2fs_swap_mmp(struct mmp_struct
*mmp
);
1734 extern int ext2fs_open_file(const char *pathname
, int flags
, mode_t mode
);
1735 extern int ext2fs_stat(const char *path
, ext2fs_struct_stat
*buf
);
1736 extern int ext2fs_fstat(int fd
, ext2fs_struct_stat
*buf
);
1739 extern int ext2fs_inode_has_valid_blocks(struct ext2_inode
*inode
);
1740 extern int ext2fs_inode_has_valid_blocks2(ext2_filsys fs
,
1741 struct ext2_inode
*inode
);
1744 extern int ext2fs_parse_version_string(const char *ver_string
);
1745 extern int ext2fs_get_library_version(const char **ver_string
,
1746 const char **date_string
);
1748 /* write_bb_file.c */
1749 extern errcode_t
ext2fs_write_bb_FILE(ext2_badblocks_list bb_list
,
1754 /* inline functions */
1755 #ifdef NO_INLINE_FUNCS
1756 extern errcode_t
ext2fs_get_mem(unsigned long size
, void *ptr
);
1757 extern errcode_t
ext2fs_get_memzero(unsigned long size
, void *ptr
);
1758 extern errcode_t
ext2fs_get_array(unsigned long count
,
1759 unsigned long size
, void *ptr
);
1760 extern errcode_t
ext2fs_get_arrayzero(unsigned long count
,
1761 unsigned long size
, void *ptr
);
1762 extern errcode_t
ext2fs_free_mem(void *ptr
);
1763 extern errcode_t
ext2fs_resize_mem(unsigned long old_size
,
1764 unsigned long size
, void *ptr
);
1765 extern void ext2fs_mark_super_dirty(ext2_filsys fs
);
1766 extern void ext2fs_mark_changed(ext2_filsys fs
);
1767 extern int ext2fs_test_changed(ext2_filsys fs
);
1768 extern void ext2fs_mark_valid(ext2_filsys fs
);
1769 extern void ext2fs_unmark_valid(ext2_filsys fs
);
1770 extern int ext2fs_test_valid(ext2_filsys fs
);
1771 extern void ext2fs_mark_ib_dirty(ext2_filsys fs
);
1772 extern void ext2fs_mark_bb_dirty(ext2_filsys fs
);
1773 extern int ext2fs_test_ib_dirty(ext2_filsys fs
);
1774 extern int ext2fs_test_bb_dirty(ext2_filsys fs
);
1775 extern dgrp_t
ext2fs_group_of_blk(ext2_filsys fs
, blk_t blk
);
1776 extern dgrp_t
ext2fs_group_of_ino(ext2_filsys fs
, ext2_ino_t ino
);
1777 extern blk_t
ext2fs_group_first_block(ext2_filsys fs
, dgrp_t group
);
1778 extern blk_t
ext2fs_group_last_block(ext2_filsys fs
, dgrp_t group
);
1779 extern blk_t
ext2fs_inode_data_blocks(ext2_filsys fs
,
1780 struct ext2_inode
*inode
);
1781 extern int ext2fs_htree_intnode_maxrecs(ext2_filsys fs
, int blocks
);
1782 extern unsigned int ext2fs_div_ceil(unsigned int a
, unsigned int b
);
1783 extern __u64
ext2fs_div64_ceil(__u64 a
, __u64 b
);
1784 extern int ext2fs_dirent_name_len(const struct ext2_dir_entry
*entry
);
1785 extern void ext2fs_dirent_set_name_len(struct ext2_dir_entry
*entry
, int len
);
1786 extern int ext2fs_dirent_file_type(const struct ext2_dir_entry
*entry
);
1787 extern void ext2fs_dirent_set_file_type(struct ext2_dir_entry
*entry
, int type
);
1788 extern struct ext2_inode
*ext2fs_inode(struct ext2_inode_large
* large_inode
);
1789 extern const struct ext2_inode
*ext2fs_const_inode(const struct ext2_inode_large
* large_inode
);
1794 * The actual inlined functions definitions themselves...
1796 * If NO_INLINE_FUNCS is defined, then we won't try to do inline
1799 #if (defined(INCLUDE_INLINE_FUNCS) || !defined(NO_INLINE_FUNCS))
1800 #ifdef INCLUDE_INLINE_FUNCS
1801 #define _INLINE_ extern
1803 #if (__STDC_VERSION__ >= 199901L)
1804 #define _INLINE_ inline
1807 #define _INLINE_ extern __inline__
1808 #else /* For Watcom C */
1809 #define _INLINE_ extern inline
1810 #endif /* __GNUC__ */
1811 #endif /* __STDC_VERSION__ >= 199901L */
1814 #ifndef EXT2_CUSTOM_MEMORY_ROUTINES
1817 * Allocate memory. The 'ptr' arg must point to a pointer.
1819 _INLINE_ errcode_t
ext2fs_get_mem(unsigned long size
, void *ptr
)
1825 return EXT2_ET_NO_MEMORY
;
1826 memcpy(ptr
, &pp
, sizeof (pp
));
1830 _INLINE_ errcode_t
ext2fs_get_memzero(unsigned long size
, void *ptr
)
1836 return EXT2_ET_NO_MEMORY
;
1837 memset(pp
, 0, size
);
1838 memcpy(ptr
, &pp
, sizeof(pp
));
1842 _INLINE_ errcode_t
ext2fs_get_array(unsigned long count
, unsigned long size
, void *ptr
)
1844 if (count
&& (~0UL)/count
< size
)
1845 return EXT2_ET_NO_MEMORY
;
1846 return ext2fs_get_mem(count
*size
, ptr
);
1849 _INLINE_ errcode_t
ext2fs_get_arrayzero(unsigned long count
,
1850 unsigned long size
, void *ptr
)
1854 if (count
&& (~0UL)/count
< size
)
1855 return EXT2_ET_NO_MEMORY
;
1856 pp
= calloc(count
, size
);
1858 return EXT2_ET_NO_MEMORY
;
1859 memcpy(ptr
, &pp
, sizeof(pp
));
1864 * Free memory. The 'ptr' arg must point to a pointer.
1866 _INLINE_ errcode_t
ext2fs_free_mem(void *ptr
)
1870 memcpy(&p
, ptr
, sizeof(p
));
1873 memcpy(ptr
, &p
, sizeof(p
));
1878 * Resize memory. The 'ptr' arg must point to a pointer.
1880 _INLINE_ errcode_t
ext2fs_resize_mem(unsigned long EXT2FS_ATTR((unused
)) old_size
,
1881 unsigned long size
, void *ptr
)
1885 /* Use "memcpy" for pointer assignments here to avoid problems
1886 * with C99 strict type aliasing rules. */
1887 memcpy(&p
, ptr
, sizeof(p
));
1888 p
= realloc(p
, size
);
1890 return EXT2_ET_NO_MEMORY
;
1891 memcpy(ptr
, &p
, sizeof(p
));
1894 #endif /* Custom memory routines */
1897 * Mark a filesystem superblock as dirty
1899 _INLINE_
void ext2fs_mark_super_dirty(ext2_filsys fs
)
1901 fs
->flags
|= EXT2_FLAG_DIRTY
| EXT2_FLAG_CHANGED
;
1905 * Mark a filesystem as changed
1907 _INLINE_
void ext2fs_mark_changed(ext2_filsys fs
)
1909 fs
->flags
|= EXT2_FLAG_CHANGED
;
1913 * Check to see if a filesystem has changed
1915 _INLINE_
int ext2fs_test_changed(ext2_filsys fs
)
1917 return (fs
->flags
& EXT2_FLAG_CHANGED
);
1921 * Mark a filesystem as valid
1923 _INLINE_
void ext2fs_mark_valid(ext2_filsys fs
)
1925 fs
->flags
|= EXT2_FLAG_VALID
;
1929 * Mark a filesystem as NOT valid
1931 _INLINE_
void ext2fs_unmark_valid(ext2_filsys fs
)
1933 fs
->flags
&= ~EXT2_FLAG_VALID
;
1937 * Check to see if a filesystem is valid
1939 _INLINE_
int ext2fs_test_valid(ext2_filsys fs
)
1941 return (fs
->flags
& EXT2_FLAG_VALID
);
1945 * Mark the inode bitmap as dirty
1947 _INLINE_
void ext2fs_mark_ib_dirty(ext2_filsys fs
)
1949 fs
->flags
|= EXT2_FLAG_IB_DIRTY
| EXT2_FLAG_CHANGED
;
1953 * Mark the block bitmap as dirty
1955 _INLINE_
void ext2fs_mark_bb_dirty(ext2_filsys fs
)
1957 fs
->flags
|= EXT2_FLAG_BB_DIRTY
| EXT2_FLAG_CHANGED
;
1961 * Check to see if a filesystem's inode bitmap is dirty
1963 _INLINE_
int ext2fs_test_ib_dirty(ext2_filsys fs
)
1965 return (fs
->flags
& EXT2_FLAG_IB_DIRTY
);
1969 * Check to see if a filesystem's block bitmap is dirty
1971 _INLINE_
int ext2fs_test_bb_dirty(ext2_filsys fs
)
1973 return (fs
->flags
& EXT2_FLAG_BB_DIRTY
);
1977 * Return the group # of a block
1979 _INLINE_ dgrp_t
ext2fs_group_of_blk(ext2_filsys fs
, blk_t blk
)
1981 return ext2fs_group_of_blk2(fs
, blk
);
1984 * Return the group # of an inode number
1986 _INLINE_ dgrp_t
ext2fs_group_of_ino(ext2_filsys fs
, ext2_ino_t ino
)
1988 return (ino
- 1) / fs
->super
->s_inodes_per_group
;
1992 * Return the first block (inclusive) in a group
1994 _INLINE_ blk_t
ext2fs_group_first_block(ext2_filsys fs
, dgrp_t group
)
1996 return (blk_t
) ext2fs_group_first_block2(fs
, group
);
2000 * Return the last block (inclusive) in a group
2002 _INLINE_ blk_t
ext2fs_group_last_block(ext2_filsys fs
, dgrp_t group
)
2004 return (blk_t
) ext2fs_group_last_block2(fs
, group
);
2007 _INLINE_ blk_t
ext2fs_inode_data_blocks(ext2_filsys fs
,
2008 struct ext2_inode
*inode
)
2010 return (blk_t
) ext2fs_inode_data_blocks2(fs
, inode
);
2013 _INLINE_
int ext2fs_htree_intnode_maxrecs(ext2_filsys fs
, int blocks
)
2015 return blocks
* ((fs
->blocksize
- 8) / sizeof(struct ext2_dx_entry
));
2019 * This is an efficient, overflow safe way of calculating ceil((1.0 * a) / b)
2021 _INLINE_
unsigned int ext2fs_div_ceil(unsigned int a
, unsigned int b
)
2025 return ((a
- 1) / b
) + 1;
2028 _INLINE_ __u64
ext2fs_div64_ceil(__u64 a
, __u64 b
)
2032 return ((a
- 1) / b
) + 1;
2035 _INLINE_
int ext2fs_dirent_name_len(const struct ext2_dir_entry
*entry
)
2037 return entry
->name_len
& 0xff;
2040 _INLINE_
void ext2fs_dirent_set_name_len(struct ext2_dir_entry
*entry
, int len
)
2042 entry
->name_len
= (entry
->name_len
& 0xff00) | (len
& 0xff);
2045 _INLINE_
int ext2fs_dirent_file_type(const struct ext2_dir_entry
*entry
)
2047 return entry
->name_len
>> 8;
2050 _INLINE_
void ext2fs_dirent_set_file_type(struct ext2_dir_entry
*entry
, int type
)
2052 entry
->name_len
= (entry
->name_len
& 0xff) | (type
<< 8);
2055 _INLINE_
struct ext2_inode
*ext2fs_inode(struct ext2_inode_large
* large_inode
)
2057 /* It is always safe to convert large inode to a small inode */
2058 return (struct ext2_inode
*) large_inode
;
2061 _INLINE_
const struct ext2_inode
*
2062 ext2fs_const_inode(const struct ext2_inode_large
* large_inode
)
2064 /* It is always safe to convert large inode to a small inode */
2065 return (const struct ext2_inode
*) large_inode
;
2071 /* htree levels for ext4 */
2072 #define EXT4_HTREE_LEVEL_COMPAT 2
2073 #define EXT4_HTREE_LEVEL 3
2075 static inline unsigned int ext2_dir_htree_level(ext2_filsys fs
)
2077 if (ext2fs_has_feature_largedir(fs
->super
))
2078 return EXT4_HTREE_LEVEL
;
2080 return EXT4_HTREE_LEVEL_COMPAT
;
2087 #endif /* _EXT2FS_EXT2FS_H */