]> git.ipfire.org Git - thirdparty/e2fsprogs.git/blame - lib/ext2fs/ext2fs.h
projects / thirdparty / e2fsprogs.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
libext2fs: Add crc32c implementation for metadata checksumming
[thirdparty/e2fsprogs.git] / lib / ext2fs / ext2fs.h
CommitLineData
3839e657
TT		 1/*
2 * ext2fs.h --- ext2fs
efc6f628 3 *
19c78dc0
TT		 4 * Copyright (C) 1993, 1994, 1995, 1996 Theodore Ts'o.
5 *
6 * %Begin-Header%
543547a5
TT		 7 * This file may be redistributed under the terms of the GNU Library
8 * General Public License, version 2.
19c78dc0 9 * %End-Header%
3839e657
TT		 10 */
11
9abd2ce9
TT		 12#ifndef _EXT2FS_EXT2FS_H
13#define _EXT2FS_EXT2FS_H
14
54434927
TT		 15#ifdef __GNUC__
16#define EXT2FS_ATTR(x) __attribute__(x)
17#else
18#define EXT2FS_ATTR(x)
19#endif
20
fa7ef717
TT		 21#ifdef __cplusplus
22extern "C" {
23#endif
24
19c78dc0
TT		 25/*
26 * Non-GNU C compilers won't necessarily understand inline
27 */
76f875da 28#if (!defined(__GNUC__) && !defined(__WATCOMC__))
19c78dc0
TT		 29#define NO_INLINE_FUNCS
30#endif
31
1ac2aa23
AD		 32#ifndef _XOPEN_SOURCE
33#define _XOPEN_SOURCE 600 /* for posix_memalign() */
34#endif
35
3839e657
TT		 36/*
37 * Where the master copy of the superblock is located, and how big
38 * superblocks are supposed to be. We define SUPERBLOCK_SIZE because
39 * the size of the superblock structure is not necessarily trustworthy
40 * (some versions have the padding set up so that the superblock is
41 * 1032 bytes long).
42 */
43#define SUPERBLOCK_OFFSET 1024
1ac2aa23 44#define SUPERBLOCK_SIZE 1024
3839e657 45
f3db3566
TT		 46/*
47 * The last ext2fs revision level that this version of the library is
48 * able to support.
49 */
e5b38a5f 50#define EXT2_LIB_CURRENT_REV EXT2_DYNAMIC_REV
f3db3566 51
d40259fd 52#ifdef HAVE_SYS_TYPES_H
1e3472c5 53#include <sys/types.h>
d40259fd
TT		 54#endif
55
3e699064 56#include <stdio.h>
5be8dc21 57#include <stdlib.h>
a82a5702 58#include <string.h>
023a1df0 59#include <errno.h>
5953b9de 60
1ac2aa23
AD		 61#ifndef __USE_XOPEN2K
62/* If the "#define _XOPEN_SOURCE 600" didn't succeed in declaring
63 * posix_memalign(), maybe due to <features.h> or <stdlib.h> included beforej
64 * _XOPEN_SOURCE, declare it here to avoid compiler warnings. */
65extern int posix_memalign(void **__memptr, size_t __alignment, size_t __size);
66#endif
67
5953b9de
TT		 68#if EXT2_FLAT_INCLUDES
69#include "e2_types.h"
3e699064 70#include "ext2_fs.h"
89dd6570 71#include "ext3_extents.h"
5953b9de 72#else
797f5ef1 73#include <ext2fs/ext2_types.h>
3e699064 74#include <ext2fs/ext2_fs.h>
89dd6570 75#include <ext2fs/ext3_extents.h>
e589f678 76#endif /* EXT2_FLAT_INCLUDES */
50e1e10f 77
31dbecd4 78typedef __u32 ext2_ino_t;
50e1e10f 79typedef __u32 blk_t;
eac91b35 80typedef __u64 blk64_t;
2eb374c9 81typedef __u32 dgrp_t;
30fab293 82typedef __u32 ext2_off_t;
f6b4c275 83typedef __u64 ext2_off64_t;
03673dbb 84typedef __s64 e2_blkcnt_t;
52783e0c 85typedef __u32 ext2_dirhash_t;
3839e657 86
b5abe6fa
TT		 87#if EXT2_FLAT_INCLUDES
88#include "com_err.h"
89#include "ext2_io.h"
90#include "ext2_err.h"
fefaef39 91#include "ext2_ext_attr.h"
b5abe6fa 92#else
7c2d2569
TT		 93#include <et/com_err.h>
94#include <ext2fs/ext2_io.h>
95#include <ext2fs/ext2_err.h>
fefaef39 96#include <ext2fs/ext2_ext_attr.h>
b5abe6fa 97#endif
3839e657 98
4c77fe50
TT		 99/*
100 * Portability help for Microsoft Visual C++
101 */
102#ifdef _MSC_VER
103#define EXT2_QSORT_TYPE int __cdecl
104#else
105#define EXT2_QSORT_TYPE int
106#endif
107
f3db3566
TT		 108typedef struct struct_ext2_filsys *ext2_filsys;
109
1e3472c5
TT		 110#define EXT2FS_MARK_ERROR 0
111#define EXT2FS_UNMARK_ERROR 1
112#define EXT2FS_TEST_ERROR 2
f3db3566 113
1e3472c5 114typedef struct ext2fs_struct_generic_bitmap *ext2fs_generic_bitmap;
1e3472c5 115typedef struct ext2fs_struct_generic_bitmap *ext2fs_inode_bitmap;
1e3472c5 116typedef struct ext2fs_struct_generic_bitmap *ext2fs_block_bitmap;
f3db3566 117
7f88b043 118#define EXT2_FIRST_INODE(s) EXT2_FIRST_INO(s)
067911ae 119
7f88b043 120
19c78dc0 121/*
067911ae 122 * Badblocks list definitions
19c78dc0
TT		 123 */
124
b7a00563
TT		 125typedef struct ext2_struct_u32_list *ext2_badblocks_list;
126typedef struct ext2_struct_u32_iterate *ext2_badblocks_iterate;
127
128typedef struct ext2_struct_u32_list *ext2_u32_list;
129typedef struct ext2_struct_u32_iterate *ext2_u32_iterate;
19c78dc0
TT		 130
131/* old */
b7a00563
TT		 132typedef struct ext2_struct_u32_list *badblocks_list;
133typedef struct ext2_struct_u32_iterate *badblocks_iterate;
19c78dc0
TT		 134
135#define BADBLOCKS_FLAG_DIRTY 1
136
137/*
138 * ext2_dblist structure and abstractions (see dblist.c)
139 */
ab13b5a9
TT		 140struct ext2_db_entry2 {
141 ext2_ino_t ino;
142 blk64_t blk;
143 e2_blkcnt_t blockcnt;
144};
145
146/* Ye Olde 32-bit version */
19c78dc0 147struct ext2_db_entry {
31dbecd4 148 ext2_ino_t ino;
19c78dc0
TT		 149 blk_t blk;
150 int blockcnt;
151};
152
153typedef struct ext2_struct_dblist *ext2_dblist;
154
155#define DBLIST_ABORT 1
156
30fab293
TT		 157/*
158 * ext2_fileio definitions
159 */
160
161#define EXT2_FILE_WRITE 0x0001
162#define EXT2_FILE_CREATE 0x0002
163
164#define EXT2_FILE_MASK 0x00FF
165
166#define EXT2_FILE_BUF_DIRTY 0x4000
167#define EXT2_FILE_BUF_VALID 0x2000
168
169typedef struct ext2_file *ext2_file_t;
170
171#define EXT2_SEEK_SET 0
172#define EXT2_SEEK_CUR 1
173#define EXT2_SEEK_END 2
174
3839e657 175/*
a112847b 176 * Flags for the ext2_filsys structure and for ext2fs_open()
3839e657 177 */
19c78dc0
TT		 178#define EXT2_FLAG_RW 0x01
179#define EXT2_FLAG_CHANGED 0x02
180#define EXT2_FLAG_DIRTY 0x04
181#define EXT2_FLAG_VALID 0x08
182#define EXT2_FLAG_IB_DIRTY 0x10
183#define EXT2_FLAG_BB_DIRTY 0x20
5c576477
TT		 184#define EXT2_FLAG_SWAP_BYTES 0x40
185#define EXT2_FLAG_SWAP_BYTES_READ 0x80
186#define EXT2_FLAG_SWAP_BYTES_WRITE 0x100
187#define EXT2_FLAG_MASTER_SB_ONLY 0x200
19c78dc0 188#define EXT2_FLAG_FORCE 0x400
43ec8734 189#define EXT2_FLAG_SUPER_ONLY 0x800
a112847b 190#define EXT2_FLAG_JOURNAL_DEV_OK 0x1000
a78926ef 191#define EXT2_FLAG_IMAGE_FILE 0x2000
39c47ce6 192#define EXT2_FLAG_EXCLUSIVE 0x4000
cf8272e1 193#define EXT2_FLAG_SOFTSUPP_FEATURES 0x8000
ab52e12a 194#define EXT2_FLAG_NOFREE_ON_ERROR 0x10000
69365c68 195#define EXT2_FLAG_64BITS 0x20000
95fd65bb 196#define EXT2_FLAG_PRINT_PROGRESS 0x40000
73fbe232 197#define EXT2_FLAG_DIRECT_IO 0x80000
3839e657 198
7f88b043
TT		 199/*
200 * Special flag in the ext2 inode i_flag field that means that this is
201 * a new inode. (So that ext2_write_inode() can clear extra fields.)
202 */
203#define EXT2_NEW_INODE_FL 0x80000000
204
4e246704
TT		 205/*
206 * Flags for mkjournal
4e246704 207 */
6c54689f
AD		 208#define EXT2_MKJOURNAL_V1_SUPER 0x0000001 /* create V1 superblock (deprecated) */
209#define EXT2_MKJOURNAL_LAZYINIT 0x0000002 /* don't zero journal inode before use*/
4e246704 210
efe0b401
ES		 211struct opaque_ext2_group_desc;
212
3839e657 213struct struct_ext2_filsys {
4cbe8af4 214 errcode_t magic;
3839e657
TT		 215 io_channel io;
216 int flags;
217 char * device_name;
218 struct ext2_super_block * super;
54434927 219 unsigned int blocksize;
1da5ef70 220 int cluster_ratio_bits;
2eb374c9 221 dgrp_t group_desc_count;
3839e657 222 unsigned long desc_blocks;
efe0b401 223 struct opaque_ext2_group_desc * group_desc;
d32c915a 224 unsigned int inode_blocks_per_group;
f3db3566
TT		 225 ext2fs_inode_bitmap inode_map;
226 ext2fs_block_bitmap block_map;
6d8b37fa 227 /* XXX FIXME-64: not 64-bit safe, but not used? */
31dbecd4
TT		 228 errcode_t (*get_blocks)(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
229 errcode_t (*check_directory)(ext2_filsys fs, ext2_ino_t ino);
3839e657 230 errcode_t (*write_bitmaps)(ext2_filsys fs);
31dbecd4 231 errcode_t (*read_inode)(ext2_filsys fs, ext2_ino_t ino,
1e3472c5 232 struct ext2_inode *inode);
31dbecd4 233 errcode_t (*write_inode)(ext2_filsys fs, ext2_ino_t ino,
1e3472c5 234 struct ext2_inode *inode);
b7a00563 235 ext2_badblocks_list badblocks;
19c78dc0 236 ext2_dblist dblist;
a29f4d30 237 __u32 stride; /* for mke2fs */
c180ac86 238 struct ext2_super_block * orig_super;
a78926ef 239 struct ext2_image_hdr * image_header;
6a525069 240 __u32 umask;
9b9a780f 241 time_t now;
19c78dc0
TT		 242 /*
243 * Reserved for future expansion
244 */
32138187 245 __u32 reserved[7];
3839e657
TT		 246
247 /*
a29f4d30 248 * Reserved for the use of the calling application.
3839e657 249 */
b5abe6fa 250 void * priv_data;
a29f4d30
TT		 251
252 /*
253 * Inode cache
254 */
255 struct ext2_inode_cache *icache;
1ad54a94 256 io_channel image_io;
f5c562e2
TT		 257
258 /*
259 * More callback functions
260 */
261 errcode_t (*get_alloc_block)(ext2_filsys fs, blk64_t goal,
262 blk64_t *ret);
263 void (*block_alloc_stats)(ext2_filsys fs, blk64_t blk, int inuse);
3839e657
TT		 264};
265
5953b9de
TT		 266#if EXT2_FLAT_INCLUDES
267#include "e2_bitops.h"
268#else
7c2d2569 269#include <ext2fs/bitops.h>
5953b9de 270#endif
d40259fd 271
3839e657
TT		 272/*
273 * Return flags for the block iterator functions
274 */
275#define BLOCK_CHANGED 1
276#define BLOCK_ABORT 2
277#define BLOCK_ERROR 4
278
279/*
280 * Block interate flags
50e1e10f
TT		 281 *
282 * BLOCK_FLAG_APPEND, or BLOCK_FLAG_HOLE, indicates that the interator
283 * function should be called on blocks where the block number is zero.
284 * This is used by ext2fs_expand_dir() to be able to add a new block
285 * to an inode. It can also be used for programs that want to be able
286 * to deal with files that contain "holes".
efc6f628 287 *
7447921d
TT		 288 * BLOCK_FLAG_DEPTH_TRAVERSE indicates that the iterator function for
289 * the indirect, doubly indirect, etc. blocks should be called after
290 * all of the blocks containined in the indirect blocks are processed.
50e1e10f
TT		 291 * This is useful if you are going to be deallocating blocks from an
292 * inode.
1e3472c5
TT		 293 *
294 * BLOCK_FLAG_DATA_ONLY indicates that the iterator function should be
295 * called for data blocks only.
674a4ee1 296 *
efc6f628 297 * BLOCK_FLAG_READ_ONLY is a promise by the caller that it will not
357d1863
TT		 298 * modify returned block number.
299 *
674a4ee1 300 * BLOCK_FLAG_NO_LARGE is for internal use only. It informs
36a43d67 301 * ext2fs_block_iterate2 that large files won't be accepted.
3839e657
TT		 302 */
303#define BLOCK_FLAG_APPEND 1
50e1e10f 304#define BLOCK_FLAG_HOLE 1
3839e657 305#define BLOCK_FLAG_DEPTH_TRAVERSE 2
1e3472c5 306#define BLOCK_FLAG_DATA_ONLY 4
357d1863 307#define BLOCK_FLAG_READ_ONLY 8
1e3472c5 308
674a4ee1
TT		 309#define BLOCK_FLAG_NO_LARGE 0x1000
310
1e3472c5
TT		 311/*
312 * Magic "block count" return values for the block iterator function.
313 */
314#define BLOCK_COUNT_IND (-1)
315#define BLOCK_COUNT_DIND (-2)
316#define BLOCK_COUNT_TIND (-3)
317#define BLOCK_COUNT_TRANSLATOR (-4)
3839e657 318
4a31c48b 319#if 0
1e1da29f
TT		 320/*
321 * Flags for ext2fs_move_blocks
322 */
efc6f628 323#define EXT2_BMOVE_GET_DBLIST 0x0001
36f21439 324#define EXT2_BMOVE_DEBUG 0x0002
4a31c48b 325#endif
1e1da29f 326
3eb07f64
TT		 327/*
328 * Generic (non-filesystem layout specific) extents structure
329 */
330
331#define EXT2_EXTENT_FLAGS_LEAF 0x0001
332#define EXT2_EXTENT_FLAGS_UNINIT 0x0002
333#define EXT2_EXTENT_FLAGS_SECOND_VISIT 0x0004
334
335struct ext2fs_extent {
336 blk64_t e_pblk; /* first physical block */
337 blk64_t e_lblk; /* first logical block extent covers */
338 __u32 e_len; /* number of blocks covered by extent */
339 __u32 e_flags; /* extent flags */
340};
341
342typedef struct ext2_extent_handle *ext2_extent_handle_t;
343typedef struct ext2_extent_path *ext2_extent_path_t;
344
345/*
346 * Flags used by ext2fs_extent_get()
347 */
348#define EXT2_EXTENT_CURRENT 0x0000
349#define EXT2_EXTENT_MOVE_MASK 0x000F
350#define EXT2_EXTENT_ROOT 0x0001
351#define EXT2_EXTENT_LAST_LEAF 0x0002
352#define EXT2_EXTENT_FIRST_SIB 0x0003
353#define EXT2_EXTENT_LAST_SIB 0x0004
354#define EXT2_EXTENT_NEXT_SIB 0x0005
355#define EXT2_EXTENT_PREV_SIB 0x0006
356#define EXT2_EXTENT_NEXT_LEAF 0x0007
357#define EXT2_EXTENT_PREV_LEAF 0x0008
358#define EXT2_EXTENT_NEXT 0x0009
359#define EXT2_EXTENT_PREV 0x000A
360#define EXT2_EXTENT_UP 0x000B
361#define EXT2_EXTENT_DOWN 0x000C
362#define EXT2_EXTENT_DOWN_AND_LAST 0x000D
363
364/*
365 * Flags used by ext2fs_extent_insert()
366 */
01229db5
ES		 367#define EXT2_EXTENT_INSERT_AFTER 0x0001 /* insert after handle loc'n */
368#define EXT2_EXTENT_INSERT_NOSPLIT 0x0002 /* insert may not cause split */
3eb07f64 369
c802ad9e
ES		 370/*
371 * Flags used by ext2fs_extent_delete()
372 */
373#define EXT2_EXTENT_DELETE_KEEP_EMPTY 0x001 /* keep node if last extnt gone */
374
f4e9963c
ES		 375/*
376 * Flags used by ext2fs_extent_set_bmap()
377 */
378#define EXT2_EXTENT_SET_BMAP_UNINIT 0x0001
379
3eb07f64
TT		 380/*
381 * Data structure returned by ext2fs_extent_get_info()
382 */
383struct ext2_extent_info {
384 int curr_entry;
385 int curr_level;
386 int num_entries;
387 int max_entries;
388 int max_depth;
389 int bytes_avail;
390 blk64_t max_lblk;
391 blk64_t max_pblk;
392 __u32 max_len;
393 __u32 max_uninit_len;
394};
395
f9190c8a
TT		 396/*
397 * Flags for directory block reading and writing functions
398 */
399#define EXT2_DIRBLOCK_V2_STRUCT 0x0001
400
3839e657
TT		 401/*
402 * Return flags for the directory iterator functions
403 */
404#define DIRENT_CHANGED 1
405#define DIRENT_ABORT 2
406#define DIRENT_ERROR 3
407
408/*
409 * Directory iterator flags
410 */
411
412#define DIRENT_FLAG_INCLUDE_EMPTY 1
8bd0c959 413#define DIRENT_FLAG_INCLUDE_REMOVED 2
19c78dc0
TT		 414
415#define DIRENT_DOT_FILE 1
416#define DIRENT_DOT_DOT_FILE 2
417#define DIRENT_OTHER_FILE 3
8bd0c959 418#define DIRENT_DELETED_FILE 4
19c78dc0 419
3839e657
TT		 420/*
421 * Inode scan definitions
422 */
f3db3566
TT		 423typedef struct ext2_struct_inode_scan *ext2_inode_scan;
424
19c78dc0
TT		 425/*
426 * ext2fs_scan flags
427 */
428#define EXT2_SF_CHK_BADBLOCKS 0x0001
429#define EXT2_SF_BAD_INODE_BLK 0x0002
430#define EXT2_SF_BAD_EXTRA_BYTES 0x0004
431#define EXT2_SF_SKIP_MISSING_ITABLE 0x0008
f5fa2007 432#define EXT2_SF_DO_LAZY 0x0010
3839e657 433
50e1e10f
TT		 434/*
435 * ext2fs_check_if_mounted flags
436 */
437#define EXT2_MF_MOUNTED 1
438#define EXT2_MF_ISROOT 2
19c78dc0 439#define EXT2_MF_READONLY 4
07cefe7a 440#define EXT2_MF_SWAP 8
2fa8f37f 441#define EXT2_MF_BUSY 16
50e1e10f
TT		 442
443/*
444 * Ext2/linux mode flags. We define them here so that we don't need
445 * to depend on the OS's sys/stat.h, since we may be compiling on a
446 * non-Linux system.
447 */
448#define LINUX_S_IFMT 00170000
449#define LINUX_S_IFSOCK 0140000
450#define LINUX_S_IFLNK 0120000
451#define LINUX_S_IFREG 0100000
452#define LINUX_S_IFBLK 0060000
453#define LINUX_S_IFDIR 0040000
454#define LINUX_S_IFCHR 0020000
455#define LINUX_S_IFIFO 0010000
456#define LINUX_S_ISUID 0004000
457#define LINUX_S_ISGID 0002000
458#define LINUX_S_ISVTX 0001000
459
1e3472c5
TT		 460#define LINUX_S_IRWXU 00700
461#define LINUX_S_IRUSR 00400
462#define LINUX_S_IWUSR 00200
463#define LINUX_S_IXUSR 00100
464
465#define LINUX_S_IRWXG 00070
466#define LINUX_S_IRGRP 00040
467#define LINUX_S_IWGRP 00020
468#define LINUX_S_IXGRP 00010
469
470#define LINUX_S_IRWXO 00007
471#define LINUX_S_IROTH 00004
472#define LINUX_S_IWOTH 00002
473#define LINUX_S_IXOTH 00001
474
50e1e10f
TT		 475#define LINUX_S_ISLNK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFLNK)
476#define LINUX_S_ISREG(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFREG)
477#define LINUX_S_ISDIR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFDIR)
478#define LINUX_S_ISCHR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFCHR)
479#define LINUX_S_ISBLK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFBLK)
480#define LINUX_S_ISFIFO(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFIFO)
481#define LINUX_S_ISSOCK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFSOCK)
482
819157db
TT		 483/*
484 * ext2 size of an inode
485 */
486#define EXT2_I_SIZE(i) ((i)->i_size | ((__u64) (i)->i_size_high << 32))
487
19c78dc0
TT		 488/*
489 * ext2_icount_t abstraction
490 */
491#define EXT2_ICOUNT_OPT_INCREMENT 0x01
492
493typedef struct ext2_icount *ext2_icount_t;
494
30fab293
TT		 495/*
496 * Flags for ext2fs_bmap
497 */
1d667534
TT		 498#define BMAP_ALLOC 0x0001
499#define BMAP_SET 0x0002
30fab293 500
cc9bf5d2
TT		 501/*
502 * Returned flags from ext2fs_bmap
503 */
504#define BMAP_RET_UNINIT 0x0001
505
72ed1264
TT		 506/*
507 * Flags for imager.c functions
508 */
509#define IMAGER_FLAG_INODEMAP 1
510#define IMAGER_FLAG_SPARSEWRITE 2
511
f3db3566
TT		 512/*
513 * For checking structure magic numbers...
514 */
3839e657 515
f3db3566
TT		 516#define EXT2_CHECK_MAGIC(struct, code) \
517 if ((struct)->magic != (code)) return (code)
1e3472c5
TT		 518
519
520/*
e5b38a5f 521 * For ext2 compression support
1e3472c5 522 */
5d38ef1d 523#define EXT2FS_COMPRESSED_BLKADDR ((blk_t) -1)
5a63dd28
TT		 524#define HOLE_BLKADDR(_b) ((_b) == 0 || (_b) == EXT2FS_COMPRESSED_BLKADDR)
525
521e3685 526/*
426d734f 527 * Features supported by this version of the library
521e3685 528 */
3a5f8eaa
TT		 529#define EXT2_LIB_FEATURE_COMPAT_SUPP (EXT2_FEATURE_COMPAT_DIR_PREALLOC|\
530 EXT2_FEATURE_COMPAT_IMAGIC_INODES|\
342d847d 531 EXT3_FEATURE_COMPAT_HAS_JOURNAL|\
d323f8fb 532 EXT2_FEATURE_COMPAT_RESIZE_INODE|\
52783e0c 533 EXT2_FEATURE_COMPAT_DIR_INDEX|\
342d847d 534 EXT2_FEATURE_COMPAT_EXT_ATTR)
2fe1efe2 535
5a63dd28
TT		 536/* This #ifdef is temporary until compression is fully supported */
537#ifdef ENABLE_COMPRESSION
e589f678
TT		 538#ifndef I_KNOW_THAT_COMPRESSION_IS_EXPERIMENTAL
539/* If the below warning bugs you, then have
540 `CPPFLAGS=-DI_KNOW_THAT_COMPRESSION_IS_EXPERIMENTAL' in your
541 environment at configure time. */
cdaf1fa7 542 #warning "Compression support is experimental"
e589f678 543#endif
5a63dd28 544#define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\
ab146766 545 EXT2_FEATURE_INCOMPAT_COMPRESSION|\
a112847b 546 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\
c046ac7f 547 EXT2_FEATURE_INCOMPAT_META_BG|\
c2d4300b 548 EXT3_FEATURE_INCOMPAT_RECOVER|\
15d482ba 549 EXT3_FEATURE_INCOMPAT_EXTENTS|\
02d6f47e
JS		 550 EXT4_FEATURE_INCOMPAT_FLEX_BG|\
551 EXT4_FEATURE_INCOMPAT_64BIT)
5a63dd28 552#else
ab146766 553#define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\
a112847b 554 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\
c046ac7f 555 EXT2_FEATURE_INCOMPAT_META_BG|\
c2d4300b 556 EXT3_FEATURE_INCOMPAT_RECOVER|\
15d482ba 557 EXT3_FEATURE_INCOMPAT_EXTENTS|\
02d6f47e
JS		 558 EXT4_FEATURE_INCOMPAT_FLEX_BG|\
559 EXT4_FEATURE_INCOMPAT_64BIT)
5a63dd28 560#endif
674a4ee1 561#define EXT2_LIB_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|\
1ca1059f 562 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|\
a7c9cb7d 563 EXT2_FEATURE_RO_COMPAT_LARGE_FILE|\
d4f34d41 564 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|\
2be8fe43 565 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|\
44fe08f1 566 EXT4_FEATURE_RO_COMPAT_GDT_CSUM|\
624e4a64
AK		 567 EXT4_FEATURE_RO_COMPAT_BIGALLOC|\
568 EXT4_FEATURE_RO_COMPAT_QUOTA)
cf8272e1
TT		 569
570/*
571 * These features are only allowed if EXT2_FLAG_SOFTSUPP_FEATURES is passed
572 * to ext2fs_openfs()
573 */
1ca1059f 574#define EXT2_LIB_SOFTSUPP_INCOMPAT (0)
412376ef 575#define EXT2_LIB_SOFTSUPP_RO_COMPAT (EXT4_FEATURE_RO_COMPAT_BIGALLOC)
cf8272e1 576
1da5ef70
TT		 577
578/* Translate a block number to a cluster number */
579#define EXT2FS_CLUSTER_RATIO(fs) (1 << (fs)->cluster_ratio_bits)
580#define EXT2FS_CLUSTER_MASK(fs) (EXT2FS_CLUSTER_RATIO(fs) - 1)
581#define EXT2FS_B2C(fs, blk) ((blk) >> (fs)->cluster_ratio_bits)
582/* Translate a cluster number to a block number */
583#define EXT2FS_C2B(fs, cluster) ((cluster) << (fs)->cluster_ratio_bits)
584/* Translate # of blks to # of clusters */
585#define EXT2FS_NUM_B2C(fs, blks) (((blks) + EXT2FS_CLUSTER_MASK(fs)) >> \
586 (fs)->cluster_ratio_bits)
587
3839e657
TT		 588/*
589 * function prototypes
590 */
591
592/* alloc.c */
31dbecd4
TT		 593extern errcode_t ext2fs_new_inode(ext2_filsys fs, ext2_ino_t dir, int mode,
594 ext2fs_inode_bitmap map, ext2_ino_t *ret);
3839e657 595extern errcode_t ext2fs_new_block(ext2_filsys fs, blk_t goal,
f3db3566 596 ext2fs_block_bitmap map, blk_t *ret);
8a5e1812
JS		 597extern errcode_t ext2fs_new_block2(ext2_filsys fs, blk64_t goal,
598 ext2fs_block_bitmap map, blk64_t *ret);
3839e657 599extern errcode_t ext2fs_get_free_blocks(ext2_filsys fs, blk_t start,
f3db3566
TT		 600 blk_t finish, int num,
601 ext2fs_block_bitmap map,
3839e657 602 blk_t *ret);
8a5e1812
JS		 603extern errcode_t ext2fs_get_free_blocks2(ext2_filsys fs, blk64_t start,
604 blk64_t finish, int num,
605 ext2fs_block_bitmap map,
606 blk64_t *ret);
30fab293
TT		 607extern errcode_t ext2fs_alloc_block(ext2_filsys fs, blk_t goal,
608 char *block_buf, blk_t *ret);
8a5e1812
JS		 609extern errcode_t ext2fs_alloc_block2(ext2_filsys fs, blk64_t goal,
610 char *block_buf, blk64_t *ret);
efc6f628 611extern void ext2fs_set_alloc_block_callback(ext2_filsys fs,
f5c562e2
TT		 612 errcode_t (*func)(ext2_filsys fs,
613 blk64_t goal,
614 blk64_t *ret),
615 errcode_t (**old)(ext2_filsys fs,
616 blk64_t goal,
617 blk64_t *ret));
3839e657 618
ef344e13 619/* alloc_sb.c */
efc6f628 620extern int ext2fs_reserve_super_and_bgd(ext2_filsys fs,
ef344e13
TT		 621 dgrp_t group,
622 ext2fs_block_bitmap bmap);
efc6f628 623extern void ext2fs_set_block_alloc_stats_callback(ext2_filsys fs,
f5c562e2
TT		 624 void (*func)(ext2_filsys fs,
625 blk64_t blk,
626 int inuse),
627 void (**old)(ext2_filsys fs,
628 blk64_t blk,
629 int inuse));
ef344e13 630
8bd0c959
TT		 631/* alloc_stats.c */
632void ext2fs_inode_alloc_stats(ext2_filsys fs, ext2_ino_t ino, int inuse);
7f961d42
TT		 633void ext2fs_inode_alloc_stats2(ext2_filsys fs, ext2_ino_t ino,
634 int inuse, int isdir);
8bd0c959 635void ext2fs_block_alloc_stats(ext2_filsys fs, blk_t blk, int inuse);
e8328e31 636void ext2fs_block_alloc_stats2(ext2_filsys fs, blk64_t blk, int inuse);
8bd0c959 637
1e1da29f
TT		 638/* alloc_tables.c */
639extern errcode_t ext2fs_allocate_tables(ext2_filsys fs);
2eb374c9 640extern errcode_t ext2fs_allocate_group_table(ext2_filsys fs, dgrp_t group,
1e1da29f 641 ext2fs_block_bitmap bmap);
19c78dc0 642
3839e657 643/* badblocks.c */
b7a00563
TT		 644extern errcode_t ext2fs_u32_list_create(ext2_u32_list *ret, int size);
645extern errcode_t ext2fs_u32_list_add(ext2_u32_list bb, __u32 blk);
54434927 646extern int ext2fs_u32_list_find(ext2_u32_list bb, __u32 blk);
b7a00563
TT		 647extern int ext2fs_u32_list_test(ext2_u32_list bb, blk_t blk);
648extern errcode_t ext2fs_u32_list_iterate_begin(ext2_u32_list bb,
649 ext2_u32_iterate *ret);
650extern int ext2fs_u32_list_iterate(ext2_u32_iterate iter, blk_t *blk);
651extern void ext2fs_u32_list_iterate_end(ext2_u32_iterate iter);
652extern errcode_t ext2fs_u32_copy(ext2_u32_list src, ext2_u32_list *dest);
653extern int ext2fs_u32_list_equal(ext2_u32_list bb1, ext2_u32_list bb2);
654
19c78dc0
TT		 655extern errcode_t ext2fs_badblocks_list_create(ext2_badblocks_list *ret,
656 int size);
19c78dc0
TT		 657extern errcode_t ext2fs_badblocks_list_add(ext2_badblocks_list bb,
658 blk_t blk);
659extern int ext2fs_badblocks_list_test(ext2_badblocks_list bb,
660 blk_t blk);
7d7bdd57
TT		 661extern int ext2fs_u32_list_del(ext2_u32_list bb, __u32 blk);
662extern void ext2fs_badblocks_list_del(ext2_u32_list bb, __u32 blk);
19c78dc0
TT		 663extern errcode_t
664 ext2fs_badblocks_list_iterate_begin(ext2_badblocks_list bb,
665 ext2_badblocks_iterate *ret);
666extern int ext2fs_badblocks_list_iterate(ext2_badblocks_iterate iter,
667 blk_t *blk);
668extern void ext2fs_badblocks_list_iterate_end(ext2_badblocks_iterate iter);
a29f4d30
TT		 669extern errcode_t ext2fs_badblocks_copy(ext2_badblocks_list src,
670 ext2_badblocks_list *dest);
57dca854
TT		 671extern int ext2fs_badblocks_equal(ext2_badblocks_list bb1,
672 ext2_badblocks_list bb2);
220c0040 673extern int ext2fs_u32_list_count(ext2_u32_list bb);
19c78dc0
TT		 674
675/* bb_compat */
3839e657 676extern errcode_t badblocks_list_create(badblocks_list *ret, int size);
3839e657
TT		 677extern errcode_t badblocks_list_add(badblocks_list bb, blk_t blk);
678extern int badblocks_list_test(badblocks_list bb, blk_t blk);
679extern errcode_t badblocks_list_iterate_begin(badblocks_list bb,
680 badblocks_iterate *ret);
681extern int badblocks_list_iterate(badblocks_iterate iter, blk_t *blk);
682extern void badblocks_list_iterate_end(badblocks_iterate iter);
a29f4d30 683extern void badblocks_list_free(badblocks_list bb);
3839e657
TT		 684
685/* bb_inode.c */
686extern errcode_t ext2fs_update_bb_inode(ext2_filsys fs,
19c78dc0 687 ext2_badblocks_list bb_list);
3839e657
TT		 688
689/* bitmaps.c */
a0553c9d
TT		 690extern void ext2fs_free_block_bitmap(ext2fs_block_bitmap bitmap);
691extern void ext2fs_free_inode_bitmap(ext2fs_inode_bitmap bitmap);
f1f115a7
TT		 692extern errcode_t ext2fs_copy_bitmap(ext2fs_generic_bitmap src,
693 ext2fs_generic_bitmap *dest);
3839e657
TT		 694extern errcode_t ext2fs_write_inode_bitmap(ext2_filsys fs);
695extern errcode_t ext2fs_write_block_bitmap (ext2_filsys fs);
696extern errcode_t ext2fs_read_inode_bitmap (ext2_filsys fs);
697extern errcode_t ext2fs_read_block_bitmap(ext2_filsys fs);
50e1e10f
TT		 698extern errcode_t ext2fs_allocate_block_bitmap(ext2_filsys fs,
699 const char *descr,
700 ext2fs_block_bitmap *ret);
94968e74
TT		 701extern errcode_t ext2fs_allocate_subcluster_bitmap(ext2_filsys fs,
702 const char *descr,
703 ext2fs_block_bitmap *ret);
704extern int ext2fs_get_bitmap_granularity(ext2fs_block_bitmap bitmap);
50e1e10f
TT		 705extern errcode_t ext2fs_allocate_inode_bitmap(ext2_filsys fs,
706 const char *descr,
707 ext2fs_inode_bitmap *ret);
708extern errcode_t ext2fs_fudge_inode_bitmap_end(ext2fs_inode_bitmap bitmap,
31dbecd4 709 ext2_ino_t end, ext2_ino_t *oend);
50e1e10f
TT		 710extern errcode_t ext2fs_fudge_block_bitmap_end(ext2fs_block_bitmap bitmap,
711 blk_t end, blk_t *oend);
8f82ef98
VAH		 712extern errcode_t ext2fs_fudge_block_bitmap_end2(ext2fs_block_bitmap bitmap,
713 blk64_t end, blk64_t *oend);
50e1e10f
TT		 714extern void ext2fs_clear_inode_bitmap(ext2fs_inode_bitmap bitmap);
715extern void ext2fs_clear_block_bitmap(ext2fs_block_bitmap bitmap);
3839e657
TT		 716extern errcode_t ext2fs_read_bitmaps(ext2_filsys fs);
717extern errcode_t ext2fs_write_bitmaps(ext2_filsys fs);
50448d3d
TT		 718extern errcode_t ext2fs_resize_inode_bitmap(__u32 new_end, __u32 new_real_end,
719 ext2fs_inode_bitmap bmap);
8f82ef98
VAH		 720extern errcode_t ext2fs_resize_inode_bitmap2(__u64 new_end,
721 __u64 new_real_end,
722 ext2fs_inode_bitmap bmap);
50448d3d
TT		 723extern errcode_t ext2fs_resize_block_bitmap(__u32 new_end, __u32 new_real_end,
724 ext2fs_block_bitmap bmap);
8f82ef98
VAH		 725extern errcode_t ext2fs_resize_block_bitmap2(__u64 new_end,
726 __u64 new_real_end,
727 ext2fs_block_bitmap bmap);
50448d3d
TT		 728extern errcode_t ext2fs_compare_block_bitmap(ext2fs_block_bitmap bm1,
729 ext2fs_block_bitmap bm2);
730extern errcode_t ext2fs_compare_inode_bitmap(ext2fs_inode_bitmap bm1,
731 ext2fs_inode_bitmap bm2);
f1f115a7
TT		 732extern errcode_t ext2fs_set_inode_bitmap_range(ext2fs_inode_bitmap bmap,
733 ext2_ino_t start, unsigned int num,
734 void *in);
8f82ef98
VAH		 735extern errcode_t ext2fs_set_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
736 __u64 start, size_t num,
737 void *in);
f1f115a7
TT		 738extern errcode_t ext2fs_get_inode_bitmap_range(ext2fs_inode_bitmap bmap,
739 ext2_ino_t start, unsigned int num,
740 void *out);
8f82ef98
VAH		 741extern errcode_t ext2fs_get_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
742 __u64 start, size_t num,
743 void *out);
f1f115a7
TT		 744extern errcode_t ext2fs_set_block_bitmap_range(ext2fs_block_bitmap bmap,
745 blk_t start, unsigned int num,
746 void *in);
8f82ef98
VAH		 747extern errcode_t ext2fs_set_block_bitmap_range2(ext2fs_block_bitmap bmap,
748 blk64_t start, size_t num,
749 void *in);
f1f115a7
TT		 750extern errcode_t ext2fs_get_block_bitmap_range(ext2fs_block_bitmap bmap,
751 blk_t start, unsigned int num,
752 void *out);
8f82ef98
VAH		 753extern errcode_t ext2fs_get_block_bitmap_range2(ext2fs_block_bitmap bmap,
754 blk64_t start, size_t num,
755 void *out);
50448d3d 756
e3854b3b
JS		 757/* blknum.c */
758extern dgrp_t ext2fs_group_of_blk2(ext2_filsys fs, blk64_t);
759extern blk64_t ext2fs_group_first_block2(ext2_filsys fs, dgrp_t group);
760extern blk64_t ext2fs_group_last_block2(ext2_filsys fs, dgrp_t group);
761extern blk64_t ext2fs_inode_data_blocks2(ext2_filsys fs,
762 struct ext2_inode *inode);
763extern blk64_t ext2fs_inode_i_blocks(ext2_filsys fs,
764 struct ext2_inode *inode);
765extern blk64_t ext2fs_blocks_count(struct ext2_super_block *super);
766extern void ext2fs_blocks_count_set(struct ext2_super_block *super,
767 blk64_t blk);
768extern void ext2fs_blocks_count_add(struct ext2_super_block *super,
769 blk64_t blk);
770extern blk64_t ext2fs_r_blocks_count(struct ext2_super_block *super);
771extern void ext2fs_r_blocks_count_set(struct ext2_super_block *super,
772 blk64_t blk);
773extern void ext2fs_r_blocks_count_add(struct ext2_super_block *super,
774 blk64_t blk);
775extern blk64_t ext2fs_free_blocks_count(struct ext2_super_block *super);
776extern void ext2fs_free_blocks_count_set(struct ext2_super_block *super,
777 blk64_t blk);
778extern void ext2fs_free_blocks_count_add(struct ext2_super_block *super,
779 blk64_t blk);
780/* Block group descriptor accessor functions */
781extern struct ext2_group_desc *ext2fs_group_desc(ext2_filsys fs,
efe0b401 782 struct opaque_ext2_group_desc *gdp,
e3854b3b
JS		 783 dgrp_t group);
784extern blk64_t ext2fs_block_bitmap_loc(ext2_filsys fs, dgrp_t group);
785extern void ext2fs_block_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
786 blk64_t blk);
787extern blk64_t ext2fs_inode_bitmap_loc(ext2_filsys fs, dgrp_t group);
788extern void ext2fs_inode_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
789 blk64_t blk);
790extern blk64_t ext2fs_inode_table_loc(ext2_filsys fs, dgrp_t group);
791extern void ext2fs_inode_table_loc_set(ext2_filsys fs, dgrp_t group,
792 blk64_t blk);
d62d218f 793extern __u32 ext2fs_bg_free_blocks_count(ext2_filsys fs, dgrp_t group);
e3854b3b 794extern void ext2fs_bg_free_blocks_count_set(ext2_filsys fs, dgrp_t group,
d62d218f
ND		 795 __u32 n);
796extern __u32 ext2fs_bg_free_inodes_count(ext2_filsys fs, dgrp_t group);
e3854b3b 797extern void ext2fs_bg_free_inodes_count_set(ext2_filsys fs, dgrp_t group,
d62d218f
ND		 798 __u32 n);
799extern __u32 ext2fs_bg_used_dirs_count(ext2_filsys fs, dgrp_t group);
e3854b3b 800extern void ext2fs_bg_used_dirs_count_set(ext2_filsys fs, dgrp_t group,
d62d218f
ND		 801 __u32 n);
802extern __u32 ext2fs_bg_itable_unused(ext2_filsys fs, dgrp_t group);
e3854b3b 803extern void ext2fs_bg_itable_unused_set(ext2_filsys fs, dgrp_t group,
d62d218f 804 __u32 n);
e3854b3b 805extern __u16 ext2fs_bg_flags(ext2_filsys fs, dgrp_t group);
e633b58a 806extern void ext2fs_bg_flags_zap(ext2_filsys fs, dgrp_t group);
cd65a24e 807extern int ext2fs_bg_flags_test(ext2_filsys fs, dgrp_t group, __u16 bg_flag);
e633b58a
ES		 808extern void ext2fs_bg_flags_set(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
809extern void ext2fs_bg_flags_clear(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
e3854b3b
JS		 810extern __u16 ext2fs_bg_checksum(ext2_filsys fs, dgrp_t group);
811extern void ext2fs_bg_checksum_set(ext2_filsys fs, dgrp_t group, __u16 checksum);
812extern blk64_t ext2fs_file_acl_block(const struct ext2_inode *inode);
813extern void ext2fs_file_acl_block_set(struct ext2_inode *inode, blk64_t blk);
3839e657
TT		 814
815/* block.c */
816extern errcode_t ext2fs_block_iterate(ext2_filsys fs,
31dbecd4 817 ext2_ino_t ino,
3839e657
TT		 818 int flags,
819 char *block_buf,
820 int (*func)(ext2_filsys fs,
821 blk_t *blocknr,
822 int blockcnt,
b5abe6fa
TT		 823 void *priv_data),
824 void *priv_data);
19c78dc0 825errcode_t ext2fs_block_iterate2(ext2_filsys fs,
31dbecd4 826 ext2_ino_t ino,
674a4ee1
TT		 827 int flags,
828 char *block_buf,
829 int (*func)(ext2_filsys fs,
830 blk_t *blocknr,
03673dbb 831 e2_blkcnt_t blockcnt,
674a4ee1
TT		 832 blk_t ref_blk,
833 int ref_offset,
834 void *priv_data),
835 void *priv_data);
272631e4
TT		 836errcode_t ext2fs_block_iterate3(ext2_filsys fs,
837 ext2_ino_t ino,
838 int flags,
839 char *block_buf,
840 int (*func)(ext2_filsys fs,
841 blk64_t *blocknr,
842 e2_blkcnt_t blockcnt,
843 blk64_t ref_blk,
844 int ref_offset,
845 void *priv_data),
846 void *priv_data);
19c78dc0 847
30fab293 848/* bmap.c */
31dbecd4 849extern errcode_t ext2fs_bmap(ext2_filsys fs, ext2_ino_t ino,
efc6f628 850 struct ext2_inode *inode,
30fab293
TT		 851 char *block_buf, int bmap_flags,
852 blk_t block, blk_t *phys_blk);
efc6f628 853extern errcode_t ext2fs_bmap2(ext2_filsys fs, ext2_ino_t ino,
cc9bf5d2
TT		 854 struct ext2_inode *inode,
855 char *block_buf, int bmap_flags, blk64_t block,
856 int *ret_flags, blk64_t *phys_blk);
30fab293 857
4a31c48b 858#if 0
1e1da29f
TT		 859/* bmove.c */
860extern errcode_t ext2fs_move_blocks(ext2_filsys fs,
861 ext2fs_block_bitmap reserve,
9941fb73 862 ext2fs_block_bitmap alloc_map,
1e1da29f 863 int flags);
4a31c48b 864#endif
1e1da29f 865
f3db3566
TT		 866/* check_desc.c */
867extern errcode_t ext2fs_check_desc(ext2_filsys fs);
868
3839e657
TT		 869/* closefs.c */
870extern errcode_t ext2fs_close(ext2_filsys fs);
871extern errcode_t ext2fs_flush(ext2_filsys fs);
1b4cd9c7 872extern int ext2fs_bg_has_super(ext2_filsys fs, int group_block);
71300f35
JS		 873extern errcode_t ext2fs_super_and_bgd_loc2(ext2_filsys fs,
874 dgrp_t group,
875 blk64_t *ret_super_blk,
876 blk64_t *ret_old_desc_blk,
877 blk64_t *ret_new_desc_blk,
878 blk_t *ret_used_blks);
efc6f628 879extern int ext2fs_super_and_bgd_loc(ext2_filsys fs,
ef344e13
TT		 880 dgrp_t group,
881 blk_t *ret_super_blk,
882 blk_t *ret_old_desc_blk,
883 blk_t *ret_new_desc_blk,
884 int *ret_meta_bg);
1b4cd9c7 885extern void ext2fs_update_dynamic_rev(ext2_filsys fs);
3839e657 886
db8bbf27
DW		 887/* crc32c.c */
888extern __u32 crc32c_be(__u32 crc, unsigned char const *p, size_t len);
889extern __u32 crc32c_le(__u32 crc, unsigned char const *p, size_t len);
890
ca2634a4
JS		 891/* csum.c */
892extern void ext2fs_group_desc_csum_set(ext2_filsys fs, dgrp_t group);
893extern int ext2fs_group_desc_csum_verify(ext2_filsys fs, dgrp_t group);
f628acea 894extern errcode_t ext2fs_set_gdt_csum(ext2_filsys fs);
ca2634a4 895
19c78dc0
TT		 896/* dblist.c */
897
31dbecd4 898extern errcode_t ext2fs_get_num_dirs(ext2_filsys fs, ext2_ino_t *ret_num_dirs);
a29f4d30 899extern errcode_t ext2fs_init_dblist(ext2_filsys fs, ext2_dblist *ret_dblist);
31dbecd4 900extern errcode_t ext2fs_add_dir_block(ext2_dblist dblist, ext2_ino_t ino,
a29f4d30 901 blk_t blk, int blockcnt);
ab13b5a9
TT		 902extern errcode_t ext2fs_add_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
903 blk64_t blk, e2_blkcnt_t blockcnt);
ea1959f0
TT		 904extern void ext2fs_dblist_sort(ext2_dblist dblist,
905 EXT2_QSORT_TYPE (*sortfunc)(const void *,
906 const void *));
ab13b5a9
TT		 907extern void ext2fs_dblist_sort2(ext2_dblist dblist,
908 EXT2_QSORT_TYPE (*sortfunc)(const void *,
909 const void *));
a29f4d30
TT		 910extern errcode_t ext2fs_dblist_iterate(ext2_dblist dblist,
911 int (*func)(ext2_filsys fs, struct ext2_db_entry *db_info,
b5abe6fa
TT		 912 void *priv_data),
913 void *priv_data);
ab13b5a9
TT		 914extern errcode_t ext2fs_dblist_iterate2(ext2_dblist dblist,
915 int (*func)(ext2_filsys fs, struct ext2_db_entry2 *db_info,
916 void *priv_data),
917 void *priv_data);
31dbecd4 918extern errcode_t ext2fs_set_dir_block(ext2_dblist dblist, ext2_ino_t ino,
a29f4d30 919 blk_t blk, int blockcnt);
ab13b5a9
TT		 920extern errcode_t ext2fs_set_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
921 blk64_t blk, e2_blkcnt_t blockcnt);
a29f4d30
TT		 922extern errcode_t ext2fs_copy_dblist(ext2_dblist src,
923 ext2_dblist *dest);
549860c5 924extern int ext2fs_dblist_count(ext2_dblist dblist);
ab13b5a9 925extern blk64_t ext2fs_dblist_count2(ext2_dblist dblist);
efc6f628 926extern errcode_t ext2fs_dblist_get_last(ext2_dblist dblist,
52b1dd5e 927 struct ext2_db_entry **entry);
ab13b5a9
TT		 928extern errcode_t ext2fs_dblist_get_last2(ext2_dblist dblist,
929 struct ext2_db_entry2 **entry);
52b1dd5e 930extern errcode_t ext2fs_dblist_drop_last(ext2_dblist dblist);
19c78dc0
TT		 931
932/* dblist_dir.c */
933extern errcode_t
934 ext2fs_dblist_dir_iterate(ext2_dblist dblist,
935 int flags,
936 char *block_buf,
31dbecd4 937 int (*func)(ext2_ino_t dir,
19c78dc0
TT		 938 int entry,
939 struct ext2_dir_entry *dirent,
940 int offset,
941 int blocksize,
942 char *buf,
b5abe6fa
TT		 943 void *priv_data),
944 void *priv_data);
50e1e10f
TT		 945
946/* dirblock.c */
947extern errcode_t ext2fs_read_dir_block(ext2_filsys fs, blk_t block,
948 void *buf);
f9190c8a
TT		 949extern errcode_t ext2fs_read_dir_block2(ext2_filsys fs, blk_t block,
950 void *buf, int flags);
57e2467d
JS		 951extern errcode_t ext2fs_read_dir_block3(ext2_filsys fs, blk64_t block,
952 void *buf, int flags);
50e1e10f
TT		 953extern errcode_t ext2fs_write_dir_block(ext2_filsys fs, blk_t block,
954 void *buf);
f9190c8a
TT		 955extern errcode_t ext2fs_write_dir_block2(ext2_filsys fs, blk_t block,
956 void *buf, int flags);
57e2467d
JS		 957extern errcode_t ext2fs_write_dir_block3(ext2_filsys fs, blk64_t block,
958 void *buf, int flags);
50e1e10f 959
52783e0c
TT		 960/* dirhash.c */
961extern errcode_t ext2fs_dirhash(int version, const char *name, int len,
b33278c4 962 const __u32 *seed,
503f9e7f
TT		 963 ext2_dirhash_t *ret_hash,
964 ext2_dirhash_t *ret_minor_hash);
52783e0c
TT		 965
966
19c78dc0 967/* dir_iterate.c */
8a480350
TT		 968extern errcode_t ext2fs_get_rec_len(ext2_filsys fs,
969 struct ext2_dir_entry *dirent,
970 unsigned int *rec_len);
971extern errcode_t ext2fs_set_rec_len(ext2_filsys fs,
972 unsigned int len,
973 struct ext2_dir_entry *dirent);
efc6f628 974extern errcode_t ext2fs_dir_iterate(ext2_filsys fs,
31dbecd4 975 ext2_ino_t dir,
19c78dc0
TT		 976 int flags,
977 char *block_buf,
978 int (*func)(struct ext2_dir_entry *dirent,
979 int offset,
980 int blocksize,
981 char *buf,
b5abe6fa
TT		 982 void *priv_data),
983 void *priv_data);
efc6f628 984extern errcode_t ext2fs_dir_iterate2(ext2_filsys fs,
8bd0c959
TT		 985 ext2_ino_t dir,
986 int flags,
987 char *block_buf,
988 int (*func)(ext2_ino_t dir,
989 int entry,
990 struct ext2_dir_entry *dirent,
991 int offset,
992 int blocksize,
993 char *buf,
994 void *priv_data),
995 void *priv_data);
19c78dc0 996
a29f4d30
TT		 997/* dupfs.c */
998extern errcode_t ext2fs_dup_handle(ext2_filsys src, ext2_filsys *dest);
19c78dc0 999
3839e657 1000/* expanddir.c */
31dbecd4 1001extern errcode_t ext2fs_expand_dir(ext2_filsys fs, ext2_ino_t dir);
3839e657 1002
342d847d 1003/* ext_attr.c */
fefaef39
AD		 1004extern __u32 ext2fs_ext_attr_hash_entry(struct ext2_ext_attr_entry *entry,
1005 void *data);
342d847d 1006extern errcode_t ext2fs_read_ext_attr(ext2_filsys fs, blk_t block, void *buf);
b91f14b8
JS		 1007extern errcode_t ext2fs_read_ext_attr2(ext2_filsys fs, blk64_t block,
1008 void *buf);
0684a4f3
TT		 1009extern errcode_t ext2fs_write_ext_attr(ext2_filsys fs, blk_t block,
1010 void *buf);
b91f14b8
JS		 1011extern errcode_t ext2fs_write_ext_attr2(ext2_filsys fs, blk64_t block,
1012 void *buf);
0684a4f3
TT		 1013extern errcode_t ext2fs_adjust_ea_refcount(ext2_filsys fs, blk_t blk,
1014 char *block_buf,
1015 int adjust, __u32 *newcount);
b91f14b8
JS		 1016extern errcode_t ext2fs_adjust_ea_refcount2(ext2_filsys fs, blk64_t blk,
1017 char *block_buf,
1018 int adjust, __u32 *newcount);
0684a4f3 1019
3eb07f64
TT		 1020/* extent.c */
1021extern errcode_t ext2fs_extent_header_verify(void *ptr, int size);
1022extern errcode_t ext2fs_extent_open(ext2_filsys fs, ext2_ino_t ino,
1023 ext2_extent_handle_t *handle);
84b239ae 1024extern errcode_t ext2fs_extent_open2(ext2_filsys fs, ext2_ino_t ino,
1025 struct ext2_inode *inode,
1026 ext2_extent_handle_t *ret_handle);
2d328bb7 1027extern void ext2fs_extent_free(ext2_extent_handle_t handle);
3eb07f64
TT		 1028extern errcode_t ext2fs_extent_get(ext2_extent_handle_t handle,
1029 int flags, struct ext2fs_extent *extent);
1030extern errcode_t ext2fs_extent_replace(ext2_extent_handle_t handle, int flags,
1031 struct ext2fs_extent *extent);
1032extern errcode_t ext2fs_extent_insert(ext2_extent_handle_t handle, int flags,
1033 struct ext2fs_extent *extent);
f4e9963c
ES		 1034extern errcode_t ext2fs_extent_set_bmap(ext2_extent_handle_t handle,
1035 blk64_t logical, blk64_t physical,
1036 int flags);
3eb07f64
TT		 1037extern errcode_t ext2fs_extent_delete(ext2_extent_handle_t handle, int flags);
1038extern errcode_t ext2fs_extent_get_info(ext2_extent_handle_t handle,
1039 struct ext2_extent_info *info);
1040extern errcode_t ext2fs_extent_goto(ext2_extent_handle_t handle,
1041 blk64_t blk);
1042
30fab293 1043/* fileio.c */
a435ec34
TT		 1044extern errcode_t ext2fs_file_open2(ext2_filsys fs, ext2_ino_t ino,
1045 struct ext2_inode *inode,
1046 int flags, ext2_file_t *ret);
31dbecd4 1047extern errcode_t ext2fs_file_open(ext2_filsys fs, ext2_ino_t ino,
30fab293 1048 int flags, ext2_file_t *ret);
79a90bda 1049extern ext2_filsys ext2fs_file_get_fs(ext2_file_t file);
6dc058bd 1050struct ext2_inode *ext2fs_file_get_inode(ext2_file_t file);
30fab293 1051extern errcode_t ext2fs_file_close(ext2_file_t file);
f12e285f 1052extern errcode_t ext2fs_file_flush(ext2_file_t file);
30fab293 1053extern errcode_t ext2fs_file_read(ext2_file_t file, void *buf,
79a90bda 1054 unsigned int wanted, unsigned int *got);
f12e285f 1055extern errcode_t ext2fs_file_write(ext2_file_t file, const void *buf,
79a90bda 1056 unsigned int nbytes, unsigned int *written);
819157db
TT		 1057extern errcode_t ext2fs_file_llseek(ext2_file_t file, __u64 offset,
1058 int whence, __u64 *ret_pos);
674a4ee1
TT		 1059extern errcode_t ext2fs_file_lseek(ext2_file_t file, ext2_off_t offset,
1060 int whence, ext2_off_t *ret_pos);
819157db 1061errcode_t ext2fs_file_get_lsize(ext2_file_t file, __u64 *ret_size);
79a90bda
TT		 1062extern ext2_off_t ext2fs_file_get_size(ext2_file_t file);
1063extern errcode_t ext2fs_file_set_size(ext2_file_t file, ext2_off_t size);
27a0e958 1064extern errcode_t ext2fs_file_set_size2(ext2_file_t file, ext2_off64_t size);
30fab293 1065
de23aa1d
TT		 1066/* finddev.c */
1067extern char *ext2fs_find_block_device(dev_t device);
1068
4d0f3e17
TT		 1069/* flushb.c */
1070extern errcode_t ext2fs_sync_device(int fd, int flushb);
1071
3839e657
TT		 1072/* freefs.c */
1073extern void ext2fs_free(ext2_filsys fs);
a29f4d30 1074extern void ext2fs_free_dblist(ext2_dblist dblist);
b7a00563
TT		 1075extern void ext2fs_badblocks_list_free(ext2_badblocks_list bb);
1076extern void ext2fs_u32_list_free(ext2_u32_list bb);
50e1e10f 1077
a0553c9d
TT		 1078/* gen_bitmap.c */
1079extern void ext2fs_free_generic_bitmap(ext2fs_inode_bitmap bitmap);
efc6f628
TT		 1080extern errcode_t ext2fs_make_generic_bitmap(errcode_t magic, ext2_filsys fs,
1081 __u32 start, __u32 end,
a0553c9d
TT		 1082 __u32 real_end,
1083 const char *descr, char *init_map,
1084 ext2fs_generic_bitmap *ret);
1085extern errcode_t ext2fs_allocate_generic_bitmap(__u32 start,
1086 __u32 end,
1087 __u32 real_end,
1088 const char *descr,
1089 ext2fs_generic_bitmap *ret);
1090extern errcode_t ext2fs_copy_generic_bitmap(ext2fs_generic_bitmap src,
1091 ext2fs_generic_bitmap *dest);
1092extern void ext2fs_clear_generic_bitmap(ext2fs_generic_bitmap bitmap);
1093extern errcode_t ext2fs_fudge_generic_bitmap_end(ext2fs_inode_bitmap bitmap,
efc6f628 1094 errcode_t magic,
a0553c9d 1095 errcode_t neq,
efc6f628 1096 ext2_ino_t end,
a0553c9d
TT		 1097 ext2_ino_t *oend);
1098extern void ext2fs_set_generic_bitmap_padding(ext2fs_generic_bitmap map);
50448d3d
TT		 1099extern errcode_t ext2fs_resize_generic_bitmap(errcode_t magic,
1100 __u32 new_end,
1101 __u32 new_real_end,
1102 ext2fs_generic_bitmap bmap);
1103extern errcode_t ext2fs_compare_generic_bitmap(errcode_t magic, errcode_t neq,
1104 ext2fs_generic_bitmap bm1,
1105 ext2fs_generic_bitmap bm2);
f1f115a7
TT		 1106extern errcode_t ext2fs_get_generic_bitmap_range(ext2fs_generic_bitmap bmap,
1107 errcode_t magic,
1108 __u32 start, __u32 num,
1109 void *out);
1110extern errcode_t ext2fs_set_generic_bitmap_range(ext2fs_generic_bitmap bmap,
1111 errcode_t magic,
1112 __u32 start, __u32 num,
1113 void *in);
a0553c9d 1114
8f82ef98
VAH		 1115/* gen_bitmap64.c */
1116void ext2fs_free_generic_bmap(ext2fs_generic_bitmap bmap);
1117errcode_t ext2fs_alloc_generic_bmap(ext2_filsys fs, errcode_t magic,
1118 int type, __u64 start, __u64 end,
1119 __u64 real_end,
1120 const char *descr,
1121 ext2fs_generic_bitmap *ret);
1122errcode_t ext2fs_copy_generic_bmap(ext2fs_generic_bitmap src,
1123 ext2fs_generic_bitmap *dest);
1124void ext2fs_clear_generic_bmap(ext2fs_generic_bitmap bitmap);
1125errcode_t ext2fs_fudge_generic_bmap_end(ext2fs_generic_bitmap bitmap,
1126 errcode_t neq,
1127 __u64 end, __u64 *oend);
1128void ext2fs_set_generic_bmap_padding(ext2fs_generic_bitmap bmap);
1129errcode_t ext2fs_resize_generic_bmap(ext2fs_generic_bitmap bmap,
1130 __u64 new_end,
1131 __u64 new_real_end);
1132errcode_t ext2fs_compare_generic_bmap(errcode_t neq,
1133 ext2fs_generic_bitmap bm1,
1134 ext2fs_generic_bitmap bm2);
1135errcode_t ext2fs_get_generic_bmap_range(ext2fs_generic_bitmap bmap,
1136 __u64 start, unsigned int num,
1137 void *out);
1138errcode_t ext2fs_set_generic_bmap_range(ext2fs_generic_bitmap bmap,
1139 __u64 start, unsigned int num,
1140 void *in);
94968e74
TT		 1141errcode_t ext2fs_convert_subcluster_bitmap(ext2_filsys fs,
1142 ext2fs_block_bitmap *bitmap);
8f82ef98 1143
50e1e10f
TT		 1144/* getsize.c */
1145extern errcode_t ext2fs_get_device_size(const char *file, int blocksize,
1146 blk_t *retblocks);
beab8de4
JS		 1147extern errcode_t ext2fs_get_device_size2(const char *file, int blocksize,
1148 blk64_t *retblocks);
3839e657 1149
93d5c387
TT		 1150/* getsectsize.c */
1151errcode_t ext2fs_get_device_sectsize(const char *file, int *sectsize);
bb1158b9 1152errcode_t ext2fs_get_device_phys_sectsize(const char *file, int *sectsize);
93d5c387 1153
1ca1059f
TT		 1154/* i_block.c */
1155errcode_t ext2fs_iblk_add_blocks(ext2_filsys fs, struct ext2_inode *inode,
1156 blk64_t num_blocks);
1157errcode_t ext2fs_iblk_sub_blocks(ext2_filsys fs, struct ext2_inode *inode,
1158 blk64_t num_blocks);
1159errcode_t ext2fs_iblk_set(ext2_filsys fs, struct ext2_inode *inode, blk64_t b);
1160
72ed1264
TT		 1161/* imager.c */
1162extern errcode_t ext2fs_image_inode_write(ext2_filsys fs, int fd, int flags);
1163extern errcode_t ext2fs_image_inode_read(ext2_filsys fs, int fd, int flags);
1164extern errcode_t ext2fs_image_super_write(ext2_filsys fs, int fd, int flags);
1165extern errcode_t ext2fs_image_super_read(ext2_filsys fs, int fd, int flags);
1166extern errcode_t ext2fs_image_bitmap_write(ext2_filsys fs, int fd, int flags);
1167extern errcode_t ext2fs_image_bitmap_read(ext2_filsys fs, int fd, int flags);
1168
dc8ce346
TT		 1169/* ind_block.c */
1170errcode_t ext2fs_read_ind_block(ext2_filsys fs, blk_t blk, void *buf);
1171errcode_t ext2fs_write_ind_block(ext2_filsys fs, blk_t blk, void *buf);
1172
3839e657
TT		 1173/* initialize.c */
1174extern errcode_t ext2fs_initialize(const char *name, int flags,
1175 struct ext2_super_block *param,
1176 io_manager manager, ext2_filsys *ret_fs);
1177
f12e285f
TT		 1178/* icount.c */
1179extern void ext2fs_free_icount(ext2_icount_t icount);
1b9d8cb7
TT		 1180extern errcode_t ext2fs_create_icount_tdb(ext2_filsys fs, char *tdb_dir,
1181 int flags, ext2_icount_t *ret);
efc6f628 1182extern errcode_t ext2fs_create_icount2(ext2_filsys fs, int flags,
54434927 1183 unsigned int size,
f12e285f 1184 ext2_icount_t hint, ext2_icount_t *ret);
efc6f628 1185extern errcode_t ext2fs_create_icount(ext2_filsys fs, int flags,
54434927 1186 unsigned int size,
f12e285f
TT		 1187 ext2_icount_t *ret);
1188extern errcode_t ext2fs_icount_fetch(ext2_icount_t icount, ext2_ino_t ino,
1189 __u16 *ret);
1190extern errcode_t ext2fs_icount_increment(ext2_icount_t icount, ext2_ino_t ino,
1191 __u16 *ret);
1192extern errcode_t ext2fs_icount_decrement(ext2_icount_t icount, ext2_ino_t ino,
1193 __u16 *ret);
1194extern errcode_t ext2fs_icount_store(ext2_icount_t icount, ext2_ino_t ino,
1195 __u16 count);
1196extern ext2_ino_t ext2fs_get_icount_size(ext2_icount_t icount);
1197errcode_t ext2fs_icount_validate(ext2_icount_t icount, FILE *);
1198
3839e657 1199/* inode.c */
72ed1264 1200extern errcode_t ext2fs_flush_icache(ext2_filsys fs);
efc6f628 1201extern errcode_t ext2fs_get_next_inode_full(ext2_inode_scan scan,
7331196a 1202 ext2_ino_t *ino,
efc6f628 1203 struct ext2_inode *inode,
7331196a 1204 int bufsize);
3839e657
TT		 1205extern errcode_t ext2fs_open_inode_scan(ext2_filsys fs, int buffer_blocks,
1206 ext2_inode_scan *ret_scan);
1207extern void ext2fs_close_inode_scan(ext2_inode_scan scan);
31dbecd4 1208extern errcode_t ext2fs_get_next_inode(ext2_inode_scan scan, ext2_ino_t *ino,
3839e657 1209 struct ext2_inode *inode);
19c78dc0
TT		 1210extern errcode_t ext2fs_inode_scan_goto_blockgroup(ext2_inode_scan scan,
1211 int group);
1212extern void ext2fs_set_inode_callback
1213 (ext2_inode_scan scan,
1214 errcode_t (*done_group)(ext2_filsys fs,
1215 ext2_inode_scan scan,
1216 dgrp_t group,
b5abe6fa 1217 void * priv_data),
19c78dc0
TT		 1218 void *done_group_data);
1219extern int ext2fs_inode_scan_flags(ext2_inode_scan scan, int set_flags,
1220 int clear_flags);
7331196a 1221extern errcode_t ext2fs_read_inode_full(ext2_filsys fs, ext2_ino_t ino,
efc6f628 1222 struct ext2_inode * inode,
7331196a 1223 int bufsize);
31dbecd4 1224extern errcode_t ext2fs_read_inode (ext2_filsys fs, ext2_ino_t ino,
3839e657 1225 struct ext2_inode * inode);
7331196a 1226extern errcode_t ext2fs_write_inode_full(ext2_filsys fs, ext2_ino_t ino,
efc6f628 1227 struct ext2_inode * inode,
7331196a 1228 int bufsize);
31dbecd4 1229extern errcode_t ext2fs_write_inode(ext2_filsys fs, ext2_ino_t ino,
3839e657 1230 struct ext2_inode * inode);
030970ed
TT		 1231extern errcode_t ext2fs_write_new_inode(ext2_filsys fs, ext2_ino_t ino,
1232 struct ext2_inode * inode);
31dbecd4
TT		 1233extern errcode_t ext2fs_get_blocks(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
1234extern errcode_t ext2fs_check_directory(ext2_filsys fs, ext2_ino_t ino);
3839e657 1235
f12e285f
TT		 1236/* inode_io.c */
1237extern io_manager inode_io_manager;
efc6f628 1238extern errcode_t ext2fs_inode_io_intern(ext2_filsys fs, ext2_ino_t ino,
546a1ff1 1239 char **name);
a435ec34
TT		 1240extern errcode_t ext2fs_inode_io_intern2(ext2_filsys fs, ext2_ino_t ino,
1241 struct ext2_inode *inode,
1242 char **name);
efc6f628 1243
50e1e10f
TT		 1244/* ismounted.c */
1245extern errcode_t ext2fs_check_if_mounted(const char *file, int *mount_flags);
43ec8734
TT		 1246extern errcode_t ext2fs_check_mount_point(const char *device, int *mount_flags,
1247 char *mtpt, int mtlen);
50e1e10f 1248
3adb9374
TT		 1249/* punch.c */
1250extern errcode_t ext2fs_punch(ext2_filsys fs, ext2_ino_t ino,
1251 struct ext2_inode *inode,
1252 char *block_buf, blk64_t start,
1253 blk64_t end);
1254
3839e657 1255/* namei.c */
31dbecd4
TT		 1256extern errcode_t ext2fs_lookup(ext2_filsys fs, ext2_ino_t dir, const char *name,
1257 int namelen, char *buf, ext2_ino_t *inode);
1258extern errcode_t ext2fs_namei(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1259 const char *name, ext2_ino_t *inode);
1260errcode_t ext2fs_namei_follow(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1261 const char *name, ext2_ino_t *inode);
1262extern errcode_t ext2fs_follow_link(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
1263 ext2_ino_t inode, ext2_ino_t *res_inode);
1e3472c5
TT		 1264
1265/* native.c */
1266int ext2fs_native_flag(void);
3839e657
TT		 1267
1268/* newdir.c */
31dbecd4
TT		 1269extern errcode_t ext2fs_new_dir_block(ext2_filsys fs, ext2_ino_t dir_ino,
1270 ext2_ino_t parent_ino, char **block);
3839e657
TT		 1271
1272/* mkdir.c */
31dbecd4 1273extern errcode_t ext2fs_mkdir(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t inum,
3839e657
TT		 1274 const char *name);
1275
d3cd93ca 1276/* mkjournal.c */
c8608504
TT		 1277extern errcode_t ext2fs_zero_blocks(ext2_filsys fs, blk_t blk, int num,
1278 blk_t *ret_blk, int *ret_count);
73d0c4cc 1279extern errcode_t ext2fs_zero_blocks2(ext2_filsys fs, blk64_t blk, int num,
931b58e1 1280 blk64_t *ret_blk, int *ret_count);
a112847b 1281extern errcode_t ext2fs_create_journal_superblock(ext2_filsys fs,
931b58e1 1282 __u32 num_blocks, int flags,
a112847b
TT		 1283 char **ret_jsb);
1284extern errcode_t ext2fs_add_journal_device(ext2_filsys fs,
1285 ext2_filsys journal_dev);
931b58e1 1286extern errcode_t ext2fs_add_journal_inode(ext2_filsys fs, blk_t num_blocks,
31a17b36 1287 int flags);
931b58e1 1288extern int ext2fs_default_journal_size(__u64 num_blocks);
d3cd93ca 1289
3839e657
TT		 1290/* openfs.c */
1291extern errcode_t ext2fs_open(const char *name, int flags, int superblock,
54434927 1292 unsigned int block_size, io_manager manager,
3839e657 1293 ext2_filsys *ret_fs);
efc6f628
TT		 1294extern errcode_t ext2fs_open2(const char *name, const char *io_options,
1295 int flags, int superblock,
2e8ca9a2
TT		 1296 unsigned int block_size, io_manager manager,
1297 ext2_filsys *ret_fs);
4f8d6ab2
JS		 1298extern blk64_t ext2fs_descriptor_block_loc2(ext2_filsys fs,
1299 blk64_t group_block, dgrp_t i);
efc6f628 1300extern blk_t ext2fs_descriptor_block_loc(ext2_filsys fs, blk_t group_block,
c046ac7f 1301 dgrp_t i);
1ad54a94
TT		 1302errcode_t ext2fs_get_data_io(ext2_filsys fs, io_channel *old_io);
1303errcode_t ext2fs_set_data_io(ext2_filsys fs, io_channel new_io);
1304errcode_t ext2fs_rewrite_to_io(ext2_filsys fs, io_channel new_io);
3839e657
TT		 1305
1306/* get_pathname.c */
31dbecd4 1307extern errcode_t ext2fs_get_pathname(ext2_filsys fs, ext2_ino_t dir, ext2_ino_t ino,
3839e657
TT		 1308 char **name);
1309
1310/* link.c */
31dbecd4
TT		 1311errcode_t ext2fs_link(ext2_filsys fs, ext2_ino_t dir, const char *name,
1312 ext2_ino_t ino, int flags);
1313errcode_t ext2fs_unlink(ext2_filsys fs, ext2_ino_t dir, const char *name,
1314 ext2_ino_t ino, int flags);
3839e657
TT		 1315
1316/* read_bb.c */
19c78dc0
TT		 1317extern errcode_t ext2fs_read_bb_inode(ext2_filsys fs,
1318 ext2_badblocks_list *bb_list);
3839e657
TT		 1319
1320/* read_bb_file.c */
efc6f628 1321extern errcode_t ext2fs_read_bb_FILE2(ext2_filsys fs, FILE *f,
57dca854 1322 ext2_badblocks_list *bb_list,
50cd7e06 1323 void *priv_data,
57dca854
TT		 1324 void (*invalid)(ext2_filsys fs,
1325 blk_t blk,
1326 char *badstr,
50cd7e06 1327 void *priv_data));
efc6f628 1328extern errcode_t ext2fs_read_bb_FILE(ext2_filsys fs, FILE *f,
19c78dc0 1329 ext2_badblocks_list *bb_list,
3839e657
TT		 1330 void (*invalid)(ext2_filsys fs,
1331 blk_t blk));
1332
d323f8fb
TT		 1333/* res_gdt.c */
1334extern errcode_t ext2fs_create_resize_inode(ext2_filsys fs);
1335
50e1e10f 1336/* swapfs.c */
efc6f628 1337extern void ext2fs_swap_ext_attr(char *to, char *from, int bufsize,
7331196a 1338 int has_header);
fefaef39
AD		 1339extern void ext2fs_swap_ext_attr_header(struct ext2_ext_attr_header *to_header,
1340 struct ext2_ext_attr_header *from_hdr);
1341extern void ext2fs_swap_ext_attr_entry(struct ext2_ext_attr_entry *to_entry,
1342 struct ext2_ext_attr_entry *from_entry);
50e1e10f
TT		 1343extern void ext2fs_swap_super(struct ext2_super_block * super);
1344extern void ext2fs_swap_group_desc(struct ext2_group_desc *gdp);
cf828f1a 1345extern void ext2fs_swap_group_desc2(ext2_filsys, struct ext2_group_desc *gdp);
7331196a
TT		 1346extern void ext2fs_swap_inode_full(ext2_filsys fs, struct ext2_inode_large *t,
1347 struct ext2_inode_large *f, int hostorder,
1348 int bufsize);
1e3472c5
TT		 1349extern void ext2fs_swap_inode(ext2_filsys fs,struct ext2_inode *t,
1350 struct ext2_inode *f, int hostorder);
1351
19c78dc0 1352/* valid_blk.c */
521e3685
TT		 1353extern int ext2fs_inode_has_valid_blocks(struct ext2_inode *inode);
1354
1355/* version.c */
1356extern int ext2fs_parse_version_string(const char *ver_string);
1357extern int ext2fs_get_library_version(const char **ver_string,
1358 const char **date_string);
50e1e10f 1359
31dbecd4
TT		 1360/* write_bb_file.c */
1361extern errcode_t ext2fs_write_bb_FILE(ext2_badblocks_list bb_list,
1362 unsigned int flags,
1363 FILE *f);
1364
1365
3839e657 1366/* inline functions */
c4e3d3f3 1367extern errcode_t ext2fs_get_mem(unsigned long size, void *ptr);
023a1df0
TT		 1368extern errcode_t ext2fs_get_memalign(unsigned long size,
1369 unsigned long align, void *ptr);
d32c915a
TT		 1370extern errcode_t ext2fs_get_memzero(unsigned long size, void *ptr);
1371extern errcode_t ext2fs_get_array(unsigned long count,
1372 unsigned long size, void *ptr);
1373extern errcode_t ext2fs_get_arrayzero(unsigned long count,
1374 unsigned long size, void *ptr);
c4e3d3f3 1375extern errcode_t ext2fs_free_mem(void *ptr);
76f875da 1376extern errcode_t ext2fs_resize_mem(unsigned long old_size,
c4e3d3f3 1377 unsigned long size, void *ptr);
3839e657
TT		 1378extern void ext2fs_mark_super_dirty(ext2_filsys fs);
1379extern void ext2fs_mark_changed(ext2_filsys fs);
1380extern int ext2fs_test_changed(ext2_filsys fs);
1381extern void ext2fs_mark_valid(ext2_filsys fs);
1382extern void ext2fs_unmark_valid(ext2_filsys fs);
1383extern int ext2fs_test_valid(ext2_filsys fs);
1384extern void ext2fs_mark_ib_dirty(ext2_filsys fs);
1385extern void ext2fs_mark_bb_dirty(ext2_filsys fs);
1386extern int ext2fs_test_ib_dirty(ext2_filsys fs);
1387extern int ext2fs_test_bb_dirty(ext2_filsys fs);
1388extern int ext2fs_group_of_blk(ext2_filsys fs, blk_t blk);
31dbecd4 1389extern int ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino);
abf23439
ES		 1390extern blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group);
1391extern blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group);
0684a4f3
TT		 1392extern blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
1393 struct ext2_inode *inode);
69022e02 1394extern unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b);
743011fb 1395extern __u64 ext2fs_div64_ceil(__u64 a, __u64 b);
3839e657
TT		 1396
1397/*
1398 * The actual inlined functions definitions themselves...
1399 *
1400 * If NO_INLINE_FUNCS is defined, then we won't try to do inline
1401 * functions at all!
1402 */
1403#if (defined(INCLUDE_INLINE_FUNCS) || !defined(NO_INLINE_FUNCS))
1404#ifdef INCLUDE_INLINE_FUNCS
1405#define _INLINE_ extern
1406#else
76f875da 1407#ifdef __GNUC__
3839e657 1408#define _INLINE_ extern __inline__
76f875da
TT		 1409#else /* For Watcom C */
1410#define _INLINE_ extern inline
1411#endif
3839e657
TT		 1412#endif
1413
7b4e4534 1414#ifndef EXT2_CUSTOM_MEMORY_ROUTINES
68a7f959 1415#include <string.h>
7b4e4534
TT		 1416/*
1417 * Allocate memory
1418 */
c4e3d3f3 1419_INLINE_ errcode_t ext2fs_get_mem(unsigned long size, void *ptr)
7b4e4534 1420{
2694f319 1421 void *pp;
c4e3d3f3 1422
2694f319
TT		 1423 pp = malloc(size);
1424 if (!pp)
291c9049 1425 return EXT2_ET_NO_MEMORY;
2694f319 1426 memcpy(ptr, &pp, sizeof (pp));
7b4e4534
TT		 1427 return 0;
1428}
e5aace90 1429
023a1df0
TT		 1430_INLINE_ errcode_t ext2fs_get_memalign(unsigned long size,
1431 unsigned long align, void *ptr)
1432{
1433 errcode_t retval;
1434
1435 if (align == 0)
1436 align = 8;
cf5301d7
AD		 1437 retval = posix_memalign((void **) ptr, align, size);
1438 if (retval) {
023a1df0
TT		 1439 if (retval == ENOMEM)
1440 return EXT2_ET_NO_MEMORY;
1441 return retval;
1442 }
1443 return 0;
1444}
1445
ffec46fe
LC		 1446_INLINE_ errcode_t ext2fs_get_memzero(unsigned long size, void *ptr)
1447{
1448 void *pp;
1449
1450 pp = malloc(size);
1451 if (!pp)
1452 return EXT2_ET_NO_MEMORY;
1453 memset(pp, 0, size);
1454 memcpy(ptr, &pp, sizeof(pp));
1455 return 0;
1456}
1457
ee01079a
TT		 1458_INLINE_ errcode_t ext2fs_get_array(unsigned long count, unsigned long size, void *ptr)
1459{
1460 if (count && (-1UL)/count<size)
ffec46fe 1461 return EXT2_ET_NO_MEMORY;
ee01079a
TT		 1462 return ext2fs_get_mem(count*size, ptr);
1463}
7b4e4534 1464
ffec46fe
LC		 1465_INLINE_ errcode_t ext2fs_get_arrayzero(unsigned long count,
1466 unsigned long size, void *ptr)
1467{
1468 void *pp;
1469
1470 if (count && (-1UL)/count<size)
1471 return EXT2_ET_NO_MEMORY;
1472 pp = calloc(count, size);
1473 if (!pp)
1474 return EXT2_ET_NO_MEMORY;
1475 memcpy(ptr, &pp, sizeof(pp));
1476 return 0;
1477}
1478
7b4e4534
TT		 1479/*
1480 * Free memory
1481 */
c4e3d3f3 1482_INLINE_ errcode_t ext2fs_free_mem(void *ptr)
7b4e4534 1483{
2694f319 1484 void *p;
c4e3d3f3 1485
2694f319
TT		 1486 memcpy(&p, ptr, sizeof(p));
1487 free(p);
1488 p = 0;
1489 memcpy(ptr, &p, sizeof(p));
7b4e4534
TT		 1490 return 0;
1491}
efc6f628 1492
7b4e4534
TT		 1493/*
1494 * Resize memory
1495 */
e47fd841 1496_INLINE_ errcode_t ext2fs_resize_mem(unsigned long EXT2FS_ATTR((unused)) old_size,
c4e3d3f3 1497 unsigned long size, void *ptr)
7b4e4534
TT		 1498{
1499 void *p;
1500
39c191f5
ST		 1501 /* Use "memcpy" for pointer assignments here to avoid problems
1502 * with C99 strict type aliasing rules. */
2694f319 1503 memcpy(&p, ptr, sizeof(p));
39c191f5 1504 p = realloc(p, size);
7b4e4534 1505 if (!p)
291c9049 1506 return EXT2_ET_NO_MEMORY;
2694f319 1507 memcpy(ptr, &p, sizeof(p));
7b4e4534
TT		 1508 return 0;
1509}
1510#endif /* Custom memory routines */
1511
3839e657
TT		 1512/*
1513 * Mark a filesystem superblock as dirty
1514 */
1515_INLINE_ void ext2fs_mark_super_dirty(ext2_filsys fs)
1516{
1517 fs->flags |= EXT2_FLAG_DIRTY | EXT2_FLAG_CHANGED;
1518}
1519
1520/*
1521 * Mark a filesystem as changed
1522 */
1523_INLINE_ void ext2fs_mark_changed(ext2_filsys fs)
1524{
1525 fs->flags |= EXT2_FLAG_CHANGED;
1526}
1527
1528/*
1529 * Check to see if a filesystem has changed
1530 */
1531_INLINE_ int ext2fs_test_changed(ext2_filsys fs)
1532{
1533 return (fs->flags & EXT2_FLAG_CHANGED);
1534}
1535
1536/*
1537 * Mark a filesystem as valid
1538 */
1539_INLINE_ void ext2fs_mark_valid(ext2_filsys fs)
1540{
1541 fs->flags |= EXT2_FLAG_VALID;
1542}
1543
1544/*
1545 * Mark a filesystem as NOT valid
1546 */
1547_INLINE_ void ext2fs_unmark_valid(ext2_filsys fs)
1548{
1549 fs->flags &= ~EXT2_FLAG_VALID;
1550}
1551
1552/*
1553 * Check to see if a filesystem is valid
1554 */
1555_INLINE_ int ext2fs_test_valid(ext2_filsys fs)
1556{
1557 return (fs->flags & EXT2_FLAG_VALID);
1558}
1559
1560/*
1561 * Mark the inode bitmap as dirty
1562 */
1563_INLINE_ void ext2fs_mark_ib_dirty(ext2_filsys fs)
1564{
1565 fs->flags |= EXT2_FLAG_IB_DIRTY | EXT2_FLAG_CHANGED;
1566}
1567
1568/*
1569 * Mark the block bitmap as dirty
1570 */
1571_INLINE_ void ext2fs_mark_bb_dirty(ext2_filsys fs)
1572{
1573 fs->flags |= EXT2_FLAG_BB_DIRTY | EXT2_FLAG_CHANGED;
1574}
1575
1576/*
1577 * Check to see if a filesystem's inode bitmap is dirty
1578 */
1579_INLINE_ int ext2fs_test_ib_dirty(ext2_filsys fs)
1580{
1581 return (fs->flags & EXT2_FLAG_IB_DIRTY);
1582}
1583
1584/*
1585 * Check to see if a filesystem's block bitmap is dirty
1586 */
1587_INLINE_ int ext2fs_test_bb_dirty(ext2_filsys fs)
1588{
1589 return (fs->flags & EXT2_FLAG_BB_DIRTY);
1590}
1591
1592/*
1593 * Return the group # of a block
1594 */
1595_INLINE_ int ext2fs_group_of_blk(ext2_filsys fs, blk_t blk)
1596{
e3854b3b 1597 return ext2fs_group_of_blk2(fs, blk);
3839e657 1598}
3839e657
TT		 1599/*
1600 * Return the group # of an inode number
1601 */
31dbecd4 1602_INLINE_ int ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino)
3839e657
TT		 1603{
1604 return (ino - 1) / fs->super->s_inodes_per_group;
1605}
0684a4f3 1606
abf23439
ES		 1607/*
1608 * Return the first block (inclusive) in a group
1609 */
1610_INLINE_ blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group)
1611{
e3854b3b 1612 return ext2fs_group_first_block2(fs, group);
abf23439
ES		 1613}
1614
1615/*
1616 * Return the last block (inclusive) in a group
1617 */
1618_INLINE_ blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group)
1619{
e3854b3b 1620 return ext2fs_group_last_block2(fs, group);
abf23439
ES		 1621}
1622
0684a4f3
TT		 1623_INLINE_ blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
1624 struct ext2_inode *inode)
1625{
e3854b3b 1626 return ext2fs_inode_data_blocks2(fs, inode);
0684a4f3 1627}
69022e02
TT		 1628
1629/*
1630 * This is an efficient, overflow safe way of calculating ceil((1.0 * a) / b)
1631 */
1632_INLINE_ unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b)
1633{
1634 if (!a)
1635 return 0;
1636 return ((a - 1) / b) + 1;
1637}
743011fb
JS		 1638
1639_INLINE_ __u64 ext2fs_div64_ceil(__u64 a, __u64 b)
1640{
1641 if (!a)
1642 return 0;
1643 return ((a - 1) / b) + 1;
1644}
1645
3839e657
TT		 1646#undef _INLINE_
1647#endif
1648
fa7ef717
TT		 1649#ifdef __cplusplus
1650}
1651#endif
1652
9abd2ce9 1653#endif /* _EXT2FS_EXT2FS_H */
Unnamed repository; edit this file 'description' to name the repository.