Magellan Linux

  • Back to homepage
    • /[magellan-source]/trunk/mkinitrd-magellan/busybox/e2fsprogs/old_e2fsprogs/ext2fs/ext2fs.h

    Contents of /trunk/mkinitrd-magellan/busybox/e2fsprogs/old_e2fsprogs/ext2fs/ext2fs.h

    Parent Directory Parent Directory | Revision Log Revision Log

    Revision 984 - (show annotations) (download)
    Sun May 30 11:32:42 2010 UTC (13 years, 11 months ago) by niro
    File MIME type: text/plain
    File size: 30181 byte(s) 
    -updated to busybox-1.16.1 and enabled blkid/uuid support in default config
    1 /* vi: set sw=4 ts=4: */
    2 /*
    3 * ext2fs.h --- ext2fs
    4 *
    5 * Copyright (C) 1993, 1994, 1995, 1996 Theodore Ts'o.
    6 *
    7 * %Begin-Header%
    8 * This file may be redistributed under the terms of the GNU Public
    9 * License.
    10 * %End-Header%
    11 */
    12 #ifndef EXT2FS_EXT2FS_H
    13 #define EXT2FS_EXT2FS_H 1
    14
    15
    16 #define EXT2FS_ATTR(x)
    17
    18 #ifdef __cplusplus
    19 extern "C" {
    20 #endif
    21
    22 /*
    23 * Where the master copy of the superblock is located, and how big
    24 * superblocks are supposed to be. We define SUPERBLOCK_SIZE because
    25 * the size of the superblock structure is not necessarily trustworthy
    26 * (some versions have the padding set up so that the superblock is
    27 * 1032 bytes long).
    28 */
    29 #define SUPERBLOCK_OFFSET 1024
    30 #define SUPERBLOCK_SIZE 1024
    31
    32 /*
    33 * The last ext2fs revision level that this version of the library is
    34 * able to support.
    35 */
    36 #define EXT2_LIB_CURRENT_REV EXT2_DYNAMIC_REV
    37
    38 #ifdef HAVE_SYS_TYPES_H
    39 #include <sys/types.h>
    40 #endif
    41
    42 #include <stdio.h>
    43 #include <stdlib.h>
    44
    45 #include "ext2_types.h"
    46 #include "ext2_fs.h"
    47
    48 typedef __u32 ext2_ino_t;
    49 typedef __u32 blk_t;
    50 typedef __u32 dgrp_t;
    51 typedef __u32 ext2_off_t;
    52 typedef __s64 e2_blkcnt_t;
    53 typedef __u32 ext2_dirhash_t;
    54
    55 #include "ext2_io.h"
    56 #include "ext2_err.h"
    57
    58 typedef struct struct_ext2_filsys *ext2_filsys;
    59
    60 struct ext2fs_struct_generic_bitmap {
    61 errcode_t magic;
    62 ext2_filsys fs;
    63 __u32 start, end;
    64 __u32 real_end;
    65 char * description;
    66 char * bitmap;
    67 errcode_t base_error_code;
    68 __u32 reserved[7];
    69 };
    70
    71 #define EXT2FS_MARK_ERROR 0
    72 #define EXT2FS_UNMARK_ERROR 1
    73 #define EXT2FS_TEST_ERROR 2
    74
    75 typedef struct ext2fs_struct_generic_bitmap *ext2fs_generic_bitmap;
    76 typedef struct ext2fs_struct_generic_bitmap *ext2fs_inode_bitmap;
    77 typedef struct ext2fs_struct_generic_bitmap *ext2fs_block_bitmap;
    78
    79 #define EXT2_FIRST_INODE(s) EXT2_FIRST_INO(s)
    80
    81 /*
    82 * badblocks list definitions
    83 */
    84
    85 typedef struct ext2_struct_u32_list *ext2_badblocks_list;
    86 typedef struct ext2_struct_u32_iterate *ext2_badblocks_iterate;
    87
    88 typedef struct ext2_struct_u32_list *ext2_u32_list;
    89 typedef struct ext2_struct_u32_iterate *ext2_u32_iterate;
    90
    91 /* old */
    92 typedef struct ext2_struct_u32_list *badblocks_list;
    93 typedef struct ext2_struct_u32_iterate *badblocks_iterate;
    94
    95 #define BADBLOCKS_FLAG_DIRTY 1
    96
    97 /*
    98 * ext2_dblist structure and abstractions (see dblist.c)
    99 */
    100 struct ext2_db_entry {
    101 ext2_ino_t ino;
    102 blk_t blk;
    103 int blockcnt;
    104 };
    105
    106 typedef struct ext2_struct_dblist *ext2_dblist;
    107
    108 #define DBLIST_ABORT 1
    109
    110 /*
    111 * ext2_fileio definitions
    112 */
    113
    114 #define EXT2_FILE_WRITE 0x0001
    115 #define EXT2_FILE_CREATE 0x0002
    116
    117 #define EXT2_FILE_MASK 0x00FF
    118
    119 #define EXT2_FILE_BUF_DIRTY 0x4000
    120 #define EXT2_FILE_BUF_VALID 0x2000
    121
    122 typedef struct ext2_file *ext2_file_t;
    123
    124 #define EXT2_SEEK_SET 0
    125 #define EXT2_SEEK_CUR 1
    126 #define EXT2_SEEK_END 2
    127
    128 /*
    129 * Flags for the ext2_filsys structure and for ext2fs_open()
    130 */
    131 #define EXT2_FLAG_RW 0x01
    132 #define EXT2_FLAG_CHANGED 0x02
    133 #define EXT2_FLAG_DIRTY 0x04
    134 #define EXT2_FLAG_VALID 0x08
    135 #define EXT2_FLAG_IB_DIRTY 0x10
    136 #define EXT2_FLAG_BB_DIRTY 0x20
    137 #define EXT2_FLAG_SWAP_BYTES 0x40
    138 #define EXT2_FLAG_SWAP_BYTES_READ 0x80
    139 #define EXT2_FLAG_SWAP_BYTES_WRITE 0x100
    140 #define EXT2_FLAG_MASTER_SB_ONLY 0x200
    141 #define EXT2_FLAG_FORCE 0x400
    142 #define EXT2_FLAG_SUPER_ONLY 0x800
    143 #define EXT2_FLAG_JOURNAL_DEV_OK 0x1000
    144 #define EXT2_FLAG_IMAGE_FILE 0x2000
    145
    146 /*
    147 * Special flag in the ext2 inode i_flag field that means that this is
    148 * a new inode. (So that ext2_write_inode() can clear extra fields.)
    149 */
    150 #define EXT2_NEW_INODE_FL 0x80000000
    151
    152 /*
    153 * Flags for mkjournal
    154 *
    155 * EXT2_MKJOURNAL_V1_SUPER Make a (deprecated) V1 journal superblock
    156 */
    157 #define EXT2_MKJOURNAL_V1_SUPER 0x0000001
    158
    159 struct struct_ext2_filsys {
    160 errcode_t magic;
    161 io_channel io;
    162 int flags;
    163 char * device_name;
    164 struct ext2_super_block * super;
    165 unsigned int blocksize;
    166 int fragsize;
    167 dgrp_t group_desc_count;
    168 unsigned long desc_blocks;
    169 struct ext2_group_desc * group_desc;
    170 int inode_blocks_per_group;
    171 ext2fs_inode_bitmap inode_map;
    172 ext2fs_block_bitmap block_map;
    173 errcode_t (*get_blocks)(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
    174 errcode_t (*check_directory)(ext2_filsys fs, ext2_ino_t ino);
    175 errcode_t (*write_bitmaps)(ext2_filsys fs);
    176 errcode_t (*read_inode)(ext2_filsys fs, ext2_ino_t ino,
    177 struct ext2_inode *inode);
    178 errcode_t (*write_inode)(ext2_filsys fs, ext2_ino_t ino,
    179 struct ext2_inode *inode);
    180 ext2_badblocks_list badblocks;
    181 ext2_dblist dblist;
    182 __u32 stride; /* for mke2fs */
    183 struct ext2_super_block * orig_super;
    184 struct ext2_image_hdr * image_header;
    185 __u32 umask;
    186 /*
    187 * Reserved for future expansion
    188 */
    189 __u32 reserved[8];
    190
    191 /*
    192 * Reserved for the use of the calling application.
    193 */
    194 void * priv_data;
    195
    196 /*
    197 * Inode cache
    198 */
    199 struct ext2_inode_cache *icache;
    200 io_channel image_io;
    201 };
    202
    203 #include "bitops.h"
    204
    205 /*
    206 * Return flags for the block iterator functions
    207 */
    208 #define BLOCK_CHANGED 1
    209 #define BLOCK_ABORT 2
    210 #define BLOCK_ERROR 4
    211
    212 /*
    213 * Block interate flags
    214 *
    215 * BLOCK_FLAG_APPEND, or BLOCK_FLAG_HOLE, indicates that the interator
    216 * function should be called on blocks where the block number is zero.
    217 * This is used by ext2fs_expand_dir() to be able to add a new block
    218 * to an inode. It can also be used for programs that want to be able
    219 * to deal with files that contain "holes".
    220 *
    221 * BLOCK_FLAG_TRAVERSE indicates that the iterator function for the
    222 * indirect, doubly indirect, etc. blocks should be called after all
    223 * of the blocks containined in the indirect blocks are processed.
    224 * This is useful if you are going to be deallocating blocks from an
    225 * inode.
    226 *
    227 * BLOCK_FLAG_DATA_ONLY indicates that the iterator function should be
    228 * called for data blocks only.
    229 *
    230 * BLOCK_FLAG_NO_LARGE is for internal use only. It informs
    231 * ext2fs_block_iterate2 that large files won't be accepted.
    232 */
    233 #define BLOCK_FLAG_APPEND 1
    234 #define BLOCK_FLAG_HOLE 1
    235 #define BLOCK_FLAG_DEPTH_TRAVERSE 2
    236 #define BLOCK_FLAG_DATA_ONLY 4
    237
    238 #define BLOCK_FLAG_NO_LARGE 0x1000
    239
    240 /*
    241 * Magic "block count" return values for the block iterator function.
    242 */
    243 #define BLOCK_COUNT_IND (-1)
    244 #define BLOCK_COUNT_DIND (-2)
    245 #define BLOCK_COUNT_TIND (-3)
    246 #define BLOCK_COUNT_TRANSLATOR (-4)
    247
    248 #if 0
    249 /*
    250 * Flags for ext2fs_move_blocks
    251 */
    252 #define EXT2_BMOVE_GET_DBLIST 0x0001
    253 #define EXT2_BMOVE_DEBUG 0x0002
    254 #endif
    255
    256 /*
    257 * Flags for directory block reading and writing functions
    258 */
    259 #define EXT2_DIRBLOCK_V2_STRUCT 0x0001
    260
    261 /*
    262 * Return flags for the directory iterator functions
    263 */
    264 #define DIRENT_CHANGED 1
    265 #define DIRENT_ABORT 2
    266 #define DIRENT_ERROR 3
    267
    268 /*
    269 * Directory iterator flags
    270 */
    271
    272 #define DIRENT_FLAG_INCLUDE_EMPTY 1
    273 #define DIRENT_FLAG_INCLUDE_REMOVED 2
    274
    275 #define DIRENT_DOT_FILE 1
    276 #define DIRENT_DOT_DOT_FILE 2
    277 #define DIRENT_OTHER_FILE 3
    278 #define DIRENT_DELETED_FILE 4
    279
    280 /*
    281 * Inode scan definitions
    282 */
    283 typedef struct ext2_struct_inode_scan *ext2_inode_scan;
    284
    285 /*
    286 * ext2fs_scan flags
    287 */
    288 #define EXT2_SF_CHK_BADBLOCKS 0x0001
    289 #define EXT2_SF_BAD_INODE_BLK 0x0002
    290 #define EXT2_SF_BAD_EXTRA_BYTES 0x0004
    291 #define EXT2_SF_SKIP_MISSING_ITABLE 0x0008
    292
    293 /*
    294 * ext2fs_check_if_mounted flags
    295 */
    296 #define EXT2_MF_MOUNTED 1
    297 #define EXT2_MF_ISROOT 2
    298 #define EXT2_MF_READONLY 4
    299 #define EXT2_MF_SWAP 8
    300 #define EXT2_MF_BUSY 16
    301
    302 /*
    303 * Ext2/linux mode flags. We define them here so that we don't need
    304 * to depend on the OS's sys/stat.h, since we may be compiling on a
    305 * non-Linux system.
    306 */
    307 #define LINUX_S_IFMT 00170000
    308 #define LINUX_S_IFSOCK 0140000
    309 #define LINUX_S_IFLNK 0120000
    310 #define LINUX_S_IFREG 0100000
    311 #define LINUX_S_IFBLK 0060000
    312 #define LINUX_S_IFDIR 0040000
    313 #define LINUX_S_IFCHR 0020000
    314 #define LINUX_S_IFIFO 0010000
    315 #define LINUX_S_ISUID 0004000
    316 #define LINUX_S_ISGID 0002000
    317 #define LINUX_S_ISVTX 0001000
    318
    319 #define LINUX_S_IRWXU 00700
    320 #define LINUX_S_IRUSR 00400
    321 #define LINUX_S_IWUSR 00200
    322 #define LINUX_S_IXUSR 00100
    323
    324 #define LINUX_S_IRWXG 00070
    325 #define LINUX_S_IRGRP 00040
    326 #define LINUX_S_IWGRP 00020
    327 #define LINUX_S_IXGRP 00010
    328
    329 #define LINUX_S_IRWXO 00007
    330 #define LINUX_S_IROTH 00004
    331 #define LINUX_S_IWOTH 00002
    332 #define LINUX_S_IXOTH 00001
    333
    334 #define LINUX_S_ISLNK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFLNK)
    335 #define LINUX_S_ISREG(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFREG)
    336 #define LINUX_S_ISDIR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFDIR)
    337 #define LINUX_S_ISCHR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFCHR)
    338 #define LINUX_S_ISBLK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFBLK)
    339 #define LINUX_S_ISFIFO(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFIFO)
    340 #define LINUX_S_ISSOCK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFSOCK)
    341
    342 /*
    343 * ext2 size of an inode
    344 */
    345 #define EXT2_I_SIZE(i) ((i)->i_size | ((__u64) (i)->i_size_high << 32))
    346
    347 /*
    348 * ext2_icount_t abstraction
    349 */
    350 #define EXT2_ICOUNT_OPT_INCREMENT 0x01
    351
    352 typedef struct ext2_icount *ext2_icount_t;
    353
    354 /*
    355 * Flags for ext2fs_bmap
    356 */
    357 #define BMAP_ALLOC 0x0001
    358 #define BMAP_SET 0x0002
    359
    360 /*
    361 * Flags for imager.c functions
    362 */
    363 #define IMAGER_FLAG_INODEMAP 1
    364 #define IMAGER_FLAG_SPARSEWRITE 2
    365
    366 /*
    367 * For checking structure magic numbers...
    368 */
    369
    370 #define EXT2_CHECK_MAGIC(struct, code) \
    371 if ((struct)->magic != (code)) return (code)
    372
    373
    374 /*
    375 * For ext2 compression support
    376 */
    377 #define EXT2FS_COMPRESSED_BLKADDR ((blk_t) 0xffffffff)
    378 #define HOLE_BLKADDR(_b) ((_b) == 0 || (_b) == EXT2FS_COMPRESSED_BLKADDR)
    379
    380 /*
    381 * Features supported by this version of the library
    382 */
    383 #define EXT2_LIB_FEATURE_COMPAT_SUPP (EXT2_FEATURE_COMPAT_DIR_PREALLOC|\
    384 EXT2_FEATURE_COMPAT_IMAGIC_INODES|\
    385 EXT3_FEATURE_COMPAT_HAS_JOURNAL|\
    386 EXT2_FEATURE_COMPAT_RESIZE_INODE|\
    387 EXT2_FEATURE_COMPAT_DIR_INDEX|\
    388 EXT2_FEATURE_COMPAT_EXT_ATTR)
    389
    390 /* This #ifdef is temporary until compression is fully supported */
    391 #ifdef ENABLE_COMPRESSION
    392 #ifndef I_KNOW_THAT_COMPRESSION_IS_EXPERIMENTAL
    393 /* If the below warning bugs you, then have
    394 `CPPFLAGS=-DI_KNOW_THAT_COMPRESSION_IS_EXPERIMENTAL' in your
    395 environment at configure time. */
    396 #warning "Compression support is experimental"
    397 #endif
    398 #define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\
    399 EXT2_FEATURE_INCOMPAT_COMPRESSION|\
    400 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\
    401 EXT2_FEATURE_INCOMPAT_META_BG|\
    402 EXT3_FEATURE_INCOMPAT_RECOVER)
    403 #else
    404 #define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\
    405 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\
    406 EXT2_FEATURE_INCOMPAT_META_BG|\
    407 EXT3_FEATURE_INCOMPAT_RECOVER)
    408 #endif
    409 #define EXT2_LIB_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|\
    410 EXT2_FEATURE_RO_COMPAT_LARGE_FILE)
    411 /*
    412 * function prototypes
    413 */
    414
    415 /* alloc.c */
    416 extern errcode_t ext2fs_new_inode(ext2_filsys fs, ext2_ino_t dir, int mode,
    417 ext2fs_inode_bitmap map, ext2_ino_t *ret);
    418 extern errcode_t ext2fs_new_block(ext2_filsys fs, blk_t goal,
    419 ext2fs_block_bitmap map, blk_t *ret);
    420 extern errcode_t ext2fs_get_free_blocks(ext2_filsys fs, blk_t start,
    421 blk_t finish, int num,
    422 ext2fs_block_bitmap map,
    423 blk_t *ret);
    424 extern errcode_t ext2fs_alloc_block(ext2_filsys fs, blk_t goal,
    425 char *block_buf, blk_t *ret);
    426
    427 /* alloc_sb.c */
    428 extern int ext2fs_reserve_super_and_bgd(ext2_filsys fs,
    429 dgrp_t group,
    430 ext2fs_block_bitmap bmap);
    431
    432 /* alloc_stats.c */
    433 void ext2fs_inode_alloc_stats(ext2_filsys fs, ext2_ino_t ino, int inuse);
    434 void ext2fs_inode_alloc_stats2(ext2_filsys fs, ext2_ino_t ino,
    435 int inuse, int isdir);
    436 void ext2fs_block_alloc_stats(ext2_filsys fs, blk_t blk, int inuse);
    437
    438 /* alloc_tables.c */
    439 extern errcode_t ext2fs_allocate_tables(ext2_filsys fs);
    440 extern errcode_t ext2fs_allocate_group_table(ext2_filsys fs, dgrp_t group,
    441 ext2fs_block_bitmap bmap);
    442
    443 /* badblocks.c */
    444 extern errcode_t ext2fs_u32_list_create(ext2_u32_list *ret, int size);
    445 extern errcode_t ext2fs_u32_list_add(ext2_u32_list bb, __u32 blk);
    446 extern int ext2fs_u32_list_find(ext2_u32_list bb, __u32 blk);
    447 extern int ext2fs_u32_list_test(ext2_u32_list bb, blk_t blk);
    448 extern errcode_t ext2fs_u32_list_iterate_begin(ext2_u32_list bb,
    449 ext2_u32_iterate *ret);
    450 extern int ext2fs_u32_list_iterate(ext2_u32_iterate iter, blk_t *blk);
    451 extern void ext2fs_u32_list_iterate_end(ext2_u32_iterate iter);
    452 extern errcode_t ext2fs_u32_copy(ext2_u32_list src, ext2_u32_list *dest);
    453 extern int ext2fs_u32_list_equal(ext2_u32_list bb1, ext2_u32_list bb2);
    454
    455 extern errcode_t ext2fs_badblocks_list_create(ext2_badblocks_list *ret,
    456 int size);
    457 extern errcode_t ext2fs_badblocks_list_add(ext2_badblocks_list bb,
    458 blk_t blk);
    459 extern int ext2fs_badblocks_list_test(ext2_badblocks_list bb,
    460 blk_t blk);
    461 extern int ext2fs_u32_list_del(ext2_u32_list bb, __u32 blk);
    462 extern void ext2fs_badblocks_list_del(ext2_u32_list bb, __u32 blk);
    463 extern errcode_t
    464 ext2fs_badblocks_list_iterate_begin(ext2_badblocks_list bb,
    465 ext2_badblocks_iterate *ret);
    466 extern int ext2fs_badblocks_list_iterate(ext2_badblocks_iterate iter,
    467 blk_t *blk);
    468 extern void ext2fs_badblocks_list_iterate_end(ext2_badblocks_iterate iter);
    469 extern errcode_t ext2fs_badblocks_copy(ext2_badblocks_list src,
    470 ext2_badblocks_list *dest);
    471 extern int ext2fs_badblocks_equal(ext2_badblocks_list bb1,
    472 ext2_badblocks_list bb2);
    473 extern int ext2fs_u32_list_count(ext2_u32_list bb);
    474
    475 /* bb_compat */
    476 extern errcode_t badblocks_list_create(badblocks_list *ret, int size);
    477 extern errcode_t badblocks_list_add(badblocks_list bb, blk_t blk);
    478 extern int badblocks_list_test(badblocks_list bb, blk_t blk);
    479 extern errcode_t badblocks_list_iterate_begin(badblocks_list bb,
    480 badblocks_iterate *ret);
    481 extern int badblocks_list_iterate(badblocks_iterate iter, blk_t *blk);
    482 extern void badblocks_list_iterate_end(badblocks_iterate iter);
    483 extern void badblocks_list_free(badblocks_list bb);
    484
    485 /* bb_inode.c */
    486 extern errcode_t ext2fs_update_bb_inode(ext2_filsys fs,
    487 ext2_badblocks_list bb_list);
    488
    489 /* bitmaps.c */
    490 extern errcode_t ext2fs_write_inode_bitmap(ext2_filsys fs);
    491 extern errcode_t ext2fs_write_block_bitmap (ext2_filsys fs);
    492 extern errcode_t ext2fs_read_inode_bitmap (ext2_filsys fs);
    493 extern errcode_t ext2fs_read_block_bitmap(ext2_filsys fs);
    494 extern errcode_t ext2fs_allocate_generic_bitmap(__u32 start,
    495 __u32 end,
    496 __u32 real_end,
    497 const char *descr,
    498 ext2fs_generic_bitmap *ret);
    499 extern errcode_t ext2fs_allocate_block_bitmap(ext2_filsys fs,
    500 const char *descr,
    501 ext2fs_block_bitmap *ret);
    502 extern errcode_t ext2fs_allocate_inode_bitmap(ext2_filsys fs,
    503 const char *descr,
    504 ext2fs_inode_bitmap *ret);
    505 extern errcode_t ext2fs_fudge_inode_bitmap_end(ext2fs_inode_bitmap bitmap,
    506 ext2_ino_t end, ext2_ino_t *oend);
    507 extern errcode_t ext2fs_fudge_block_bitmap_end(ext2fs_block_bitmap bitmap,
    508 blk_t end, blk_t *oend);
    509 extern void ext2fs_clear_inode_bitmap(ext2fs_inode_bitmap bitmap);
    510 extern void ext2fs_clear_block_bitmap(ext2fs_block_bitmap bitmap);
    511 extern errcode_t ext2fs_read_bitmaps(ext2_filsys fs);
    512 extern errcode_t ext2fs_write_bitmaps(ext2_filsys fs);
    513
    514 /* block.c */
    515 extern errcode_t ext2fs_block_iterate(ext2_filsys fs,
    516 ext2_ino_t ino,
    517 int flags,
    518 char *block_buf,
    519 int (*func)(ext2_filsys fs,
    520 blk_t *blocknr,
    521 int blockcnt,
    522 void *priv_data),
    523 void *priv_data);
    524 errcode_t ext2fs_block_iterate2(ext2_filsys fs,
    525 ext2_ino_t ino,
    526 int flags,
    527 char *block_buf,
    528 int (*func)(ext2_filsys fs,
    529 blk_t *blocknr,
    530 e2_blkcnt_t blockcnt,
    531 blk_t ref_blk,
    532 int ref_offset,
    533 void *priv_data),
    534 void *priv_data);
    535
    536 /* bmap.c */
    537 extern errcode_t ext2fs_bmap(ext2_filsys fs, ext2_ino_t ino,
    538 struct ext2_inode *inode,
    539 char *block_buf, int bmap_flags,
    540 blk_t block, blk_t *phys_blk);
    541
    542
    543 #if 0
    544 /* bmove.c */
    545 extern errcode_t ext2fs_move_blocks(ext2_filsys fs,
    546 ext2fs_block_bitmap reserve,
    547 ext2fs_block_bitmap alloc_map,
    548 int flags);
    549 #endif
    550
    551 /* check_desc.c */
    552 extern errcode_t ext2fs_check_desc(ext2_filsys fs);
    553
    554 /* closefs.c */
    555 extern errcode_t ext2fs_close(ext2_filsys fs);
    556 extern errcode_t ext2fs_flush(ext2_filsys fs);
    557 extern int ext2fs_bg_has_super(ext2_filsys fs, int group_block);
    558 extern int ext2fs_super_and_bgd_loc(ext2_filsys fs,
    559 dgrp_t group,
    560 blk_t *ret_super_blk,
    561 blk_t *ret_old_desc_blk,
    562 blk_t *ret_new_desc_blk,
    563 int *ret_meta_bg);
    564 extern void ext2fs_update_dynamic_rev(ext2_filsys fs);
    565
    566 /* cmp_bitmaps.c */
    567 extern errcode_t ext2fs_compare_block_bitmap(ext2fs_block_bitmap bm1,
    568 ext2fs_block_bitmap bm2);
    569 extern errcode_t ext2fs_compare_inode_bitmap(ext2fs_inode_bitmap bm1,
    570 ext2fs_inode_bitmap bm2);
    571
    572 /* dblist.c */
    573
    574 extern errcode_t ext2fs_get_num_dirs(ext2_filsys fs, ext2_ino_t *ret_num_dirs);
    575 extern errcode_t ext2fs_init_dblist(ext2_filsys fs, ext2_dblist *ret_dblist);
    576 extern errcode_t ext2fs_add_dir_block(ext2_dblist dblist, ext2_ino_t ino,
    577 blk_t blk, int blockcnt);
    578 extern void ext2fs_dblist_sort(ext2_dblist dblist,
    579 int (*sortfunc)(const void *,
    580 const void *));
    581 extern errcode_t ext2fs_dblist_iterate(ext2_dblist dblist,
    582 int (*func)(ext2_filsys fs, struct ext2_db_entry *db_info,
    583 void *priv_data),
    584 void *priv_data);
    585 extern errcode_t ext2fs_set_dir_block(ext2_dblist dblist, ext2_ino_t ino,
    586 blk_t blk, int blockcnt);
    587 extern errcode_t ext2fs_copy_dblist(ext2_dblist src,
    588 ext2_dblist *dest);
    589 extern int ext2fs_dblist_count(ext2_dblist dblist);
    590
    591 /* dblist_dir.c */
    592 extern errcode_t
    593 ext2fs_dblist_dir_iterate(ext2_dblist dblist,
    594 int flags,
    595 char *block_buf,
    596 int (*func)(ext2_ino_t dir,
    597 int entry,
    598 struct ext2_dir_entry *dirent,
    599 int offset,
    600 int blocksize,
    601 char *buf,
    602 void *priv_data),
    603 void *priv_data);
    604
    605 /* dirblock.c */
    606 extern errcode_t ext2fs_read_dir_block(ext2_filsys fs, blk_t block,
    607 void *buf);
    608 extern errcode_t ext2fs_read_dir_block2(ext2_filsys fs, blk_t block,
    609 void *buf, int flags);
    610 extern errcode_t ext2fs_write_dir_block(ext2_filsys fs, blk_t block,
    611 void *buf);
    612 extern errcode_t ext2fs_write_dir_block2(ext2_filsys fs, blk_t block,
    613 void *buf, int flags);
    614
    615 /* dirhash.c */
    616 extern errcode_t ext2fs_dirhash(int version, const char *name, int len,
    617 const __u32 *seed,
    618 ext2_dirhash_t *ret_hash,
    619 ext2_dirhash_t *ret_minor_hash);
    620
    621
    622 /* dir_iterate.c */
    623 extern errcode_t ext2fs_dir_iterate(ext2_filsys fs,
    624 ext2_ino_t dir,
    625 int flags,
    626 char *block_buf,
    627 int (*func)(struct ext2_dir_entry *dirent,
    628 int offset,
    629 int blocksize,
    630 char *buf,
    631 void *priv_data),
    632 void *priv_data);
    633 extern errcode_t ext2fs_dir_iterate2(ext2_filsys fs,
    634 ext2_ino_t dir,
    635 int flags,
    636 char *block_buf,
    637 int (*func)(ext2_ino_t dir,
    638 int entry,
    639 struct ext2_dir_entry *dirent,
    640 int offset,
    641 int blocksize,
    642 char *buf,
    643 void *priv_data),
    644 void *priv_data);
    645
    646 /* dupfs.c */
    647 extern errcode_t ext2fs_dup_handle(ext2_filsys src, ext2_filsys *dest);
    648
    649 /* expanddir.c */
    650 extern errcode_t ext2fs_expand_dir(ext2_filsys fs, ext2_ino_t dir);
    651
    652 /* ext_attr.c */
    653 extern errcode_t ext2fs_read_ext_attr(ext2_filsys fs, blk_t block, void *buf);
    654 extern errcode_t ext2fs_write_ext_attr(ext2_filsys fs, blk_t block,
    655 void *buf);
    656 extern errcode_t ext2fs_adjust_ea_refcount(ext2_filsys fs, blk_t blk,
    657 char *block_buf,
    658 int adjust, __u32 *newcount);
    659
    660 /* fileio.c */
    661 extern errcode_t ext2fs_file_open2(ext2_filsys fs, ext2_ino_t ino,
    662 struct ext2_inode *inode,
    663 int flags, ext2_file_t *ret);
    664 extern errcode_t ext2fs_file_open(ext2_filsys fs, ext2_ino_t ino,
    665 int flags, ext2_file_t *ret);
    666 extern ext2_filsys ext2fs_file_get_fs(ext2_file_t file);
    667 extern errcode_t ext2fs_file_close(ext2_file_t file);
    668 extern errcode_t ext2fs_file_flush(ext2_file_t file);
    669 extern errcode_t ext2fs_file_read(ext2_file_t file, void *buf,
    670 unsigned int wanted, unsigned int *got);
    671 extern errcode_t ext2fs_file_write(ext2_file_t file, const void *buf,
    672 unsigned int nbytes, unsigned int *written);
    673 extern errcode_t ext2fs_file_llseek(ext2_file_t file, __u64 offset,
    674 int whence, __u64 *ret_pos);
    675 extern errcode_t ext2fs_file_lseek(ext2_file_t file, ext2_off_t offset,
    676 int whence, ext2_off_t *ret_pos);
    677 errcode_t ext2fs_file_get_lsize(ext2_file_t file, __u64 *ret_size);
    678 extern ext2_off_t ext2fs_file_get_size(ext2_file_t file);
    679 extern errcode_t ext2fs_file_set_size(ext2_file_t file, ext2_off_t size);
    680
    681 /* finddev.c */
    682 extern char *ext2fs_find_block_device(dev_t device);
    683
    684 /* flushb.c */
    685 extern errcode_t ext2fs_sync_device(int fd, int flushb);
    686
    687 /* freefs.c */
    688 extern void ext2fs_free(ext2_filsys fs);
    689 extern void ext2fs_free_generic_bitmap(ext2fs_inode_bitmap bitmap);
    690 extern void ext2fs_free_block_bitmap(ext2fs_block_bitmap bitmap);
    691 extern void ext2fs_free_inode_bitmap(ext2fs_inode_bitmap bitmap);
    692 extern void ext2fs_free_dblist(ext2_dblist dblist);
    693 extern void ext2fs_badblocks_list_free(ext2_badblocks_list bb);
    694 extern void ext2fs_u32_list_free(ext2_u32_list bb);
    695
    696 /* getsize.c */
    697 extern errcode_t ext2fs_get_device_size(const char *file, int blocksize,
    698 blk_t *retblocks);
    699
    700 /* getsectsize.c */
    701 errcode_t ext2fs_get_device_sectsize(const char *file, int *sectsize);
    702
    703 /* imager.c */
    704 extern errcode_t ext2fs_image_inode_write(ext2_filsys fs, int fd, int flags);
    705 extern errcode_t ext2fs_image_inode_read(ext2_filsys fs, int fd, int flags);
    706 extern errcode_t ext2fs_image_super_write(ext2_filsys fs, int fd, int flags);
    707 extern errcode_t ext2fs_image_super_read(ext2_filsys fs, int fd, int flags);
    708 extern errcode_t ext2fs_image_bitmap_write(ext2_filsys fs, int fd, int flags);
    709 extern errcode_t ext2fs_image_bitmap_read(ext2_filsys fs, int fd, int flags);
    710
    711 /* ind_block.c */
    712 errcode_t ext2fs_read_ind_block(ext2_filsys fs, blk_t blk, void *buf);
    713 errcode_t ext2fs_write_ind_block(ext2_filsys fs, blk_t blk, void *buf);
    714
    715 /* initialize.c */
    716 extern errcode_t ext2fs_initialize(const char *name, int flags,
    717 struct ext2_super_block *param,
    718 io_manager manager, ext2_filsys *ret_fs);
    719
    720 /* icount.c */
    721 extern void ext2fs_free_icount(ext2_icount_t icount);
    722 extern errcode_t ext2fs_create_icount2(ext2_filsys fs, int flags,
    723 unsigned int size,
    724 ext2_icount_t hint, ext2_icount_t *ret);
    725 extern errcode_t ext2fs_create_icount(ext2_filsys fs, int flags,
    726 unsigned int size,
    727 ext2_icount_t *ret);
    728 extern errcode_t ext2fs_icount_fetch(ext2_icount_t icount, ext2_ino_t ino,
    729 __u16 *ret);
    730 extern errcode_t ext2fs_icount_increment(ext2_icount_t icount, ext2_ino_t ino,
    731 __u16 *ret);
    732 extern errcode_t ext2fs_icount_decrement(ext2_icount_t icount, ext2_ino_t ino,
    733 __u16 *ret);
    734 extern errcode_t ext2fs_icount_store(ext2_icount_t icount, ext2_ino_t ino,
    735 __u16 count);
    736 extern ext2_ino_t ext2fs_get_icount_size(ext2_icount_t icount);
    737 errcode_t ext2fs_icount_validate(ext2_icount_t icount, FILE *);
    738
    739 /* inode.c */
    740 extern errcode_t ext2fs_flush_icache(ext2_filsys fs);
    741 extern errcode_t ext2fs_get_next_inode_full(ext2_inode_scan scan,
    742 ext2_ino_t *ino,
    743 struct ext2_inode *inode,
    744 int bufsize);
    745 extern errcode_t ext2fs_open_inode_scan(ext2_filsys fs, int buffer_blocks,
    746 ext2_inode_scan *ret_scan);
    747 extern void ext2fs_close_inode_scan(ext2_inode_scan scan);
    748 extern errcode_t ext2fs_get_next_inode(ext2_inode_scan scan, ext2_ino_t *ino,
    749 struct ext2_inode *inode);
    750 extern errcode_t ext2fs_inode_scan_goto_blockgroup(ext2_inode_scan scan,
    751 int group);
    752 extern void ext2fs_set_inode_callback
    753 (ext2_inode_scan scan,
    754 errcode_t (*done_group)(ext2_filsys fs,
    755 dgrp_t group,
    756 void * priv_data),
    757 void *done_group_data);
    758 extern int ext2fs_inode_scan_flags(ext2_inode_scan scan, int set_flags,
    759 int clear_flags);
    760 extern errcode_t ext2fs_read_inode_full(ext2_filsys fs, ext2_ino_t ino,
    761 struct ext2_inode * inode,
    762 int bufsize);
    763 extern errcode_t ext2fs_read_inode (ext2_filsys fs, ext2_ino_t ino,
    764 struct ext2_inode * inode);
    765 extern errcode_t ext2fs_write_inode_full(ext2_filsys fs, ext2_ino_t ino,
    766 struct ext2_inode * inode,
    767 int bufsize);
    768 extern errcode_t ext2fs_write_inode(ext2_filsys fs, ext2_ino_t ino,
    769 struct ext2_inode * inode);
    770 extern errcode_t ext2fs_write_new_inode(ext2_filsys fs, ext2_ino_t ino,
    771 struct ext2_inode * inode);
    772 extern errcode_t ext2fs_get_blocks(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
    773 extern errcode_t ext2fs_check_directory(ext2_filsys fs, ext2_ino_t ino);
    774
    775 /* inode_io.c */
    776 extern io_manager inode_io_manager;
    777 extern errcode_t ext2fs_inode_io_intern(ext2_filsys fs, ext2_ino_t ino,
    778 char **name);
    779 extern errcode_t ext2fs_inode_io_intern2(ext2_filsys fs, ext2_ino_t ino,
    780 struct ext2_inode *inode,
    781 char **name);
    782
    783 /* ismounted.c */
    784 extern errcode_t ext2fs_check_if_mounted(const char *file, int *mount_flags);
    785 extern errcode_t ext2fs_check_mount_point(const char *device, int *mount_flags,
    786 char *mtpt, int mtlen);
    787
    788 /* namei.c */
    789 extern errcode_t ext2fs_lookup(ext2_filsys fs, ext2_ino_t dir, const char *name,
    790 int namelen, char *buf, ext2_ino_t *inode);
    791 extern errcode_t ext2fs_namei(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
    792 const char *name, ext2_ino_t *inode);
    793 errcode_t ext2fs_namei_follow(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
    794 const char *name, ext2_ino_t *inode);
    795 extern errcode_t ext2fs_follow_link(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
    796 ext2_ino_t inode, ext2_ino_t *res_inode);
    797
    798 /* native.c */
    799 int ext2fs_native_flag(void);
    800
    801 /* newdir.c */
    802 extern errcode_t ext2fs_new_dir_block(ext2_filsys fs, ext2_ino_t dir_ino,
    803 ext2_ino_t parent_ino, char **block);
    804
    805 /* mkdir.c */
    806 extern errcode_t ext2fs_mkdir(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t inum,
    807 const char *name);
    808
    809 /* mkjournal.c */
    810 extern errcode_t ext2fs_create_journal_superblock(ext2_filsys fs,
    811 __u32 size, int flags,
    812 char **ret_jsb);
    813 extern errcode_t ext2fs_add_journal_device(ext2_filsys fs,
    814 ext2_filsys journal_dev);
    815 extern errcode_t ext2fs_add_journal_inode(ext2_filsys fs, blk_t size,
    816 int flags);
    817
    818 /* openfs.c */
    819 extern errcode_t ext2fs_open(const char *name, int flags, int superblock,
    820 unsigned int block_size, io_manager manager,
    821 ext2_filsys *ret_fs);
    822 extern errcode_t ext2fs_open2(const char *name, const char *io_options,
    823 int flags, int superblock,
    824 unsigned int block_size, io_manager manager,
    825 ext2_filsys *ret_fs);
    826 extern blk_t ext2fs_descriptor_block_loc(ext2_filsys fs, blk_t group_block,
    827 dgrp_t i);
    828 errcode_t ext2fs_get_data_io(ext2_filsys fs, io_channel *old_io);
    829 errcode_t ext2fs_set_data_io(ext2_filsys fs, io_channel new_io);
    830 errcode_t ext2fs_rewrite_to_io(ext2_filsys fs, io_channel new_io);
    831
    832 /* get_pathname.c */
    833 extern errcode_t ext2fs_get_pathname(ext2_filsys fs, ext2_ino_t dir, ext2_ino_t ino,
    834 char **name);
    835
    836 /* link.c */
    837 errcode_t ext2fs_link(ext2_filsys fs, ext2_ino_t dir, const char *name,
    838 ext2_ino_t ino, int flags);
    839 errcode_t ext2fs_unlink(ext2_filsys fs, ext2_ino_t dir, const char *name,
    840 ext2_ino_t ino, int flags);
    841
    842 /* read_bb.c */
    843 extern errcode_t ext2fs_read_bb_inode(ext2_filsys fs,
    844 ext2_badblocks_list *bb_list);
    845
    846 /* read_bb_file.c */
    847 extern errcode_t ext2fs_read_bb_FILE2(ext2_filsys fs, FILE *f,
    848 ext2_badblocks_list *bb_list,
    849 void *priv_data,
    850 void (*invalid)(ext2_filsys fs,
    851 blk_t blk,
    852 char *badstr,
    853 void *priv_data));
    854 extern errcode_t ext2fs_read_bb_FILE(ext2_filsys fs, FILE *f,
    855 ext2_badblocks_list *bb_list,
    856 void (*invalid)(ext2_filsys fs,
    857 blk_t blk));
    858
    859 /* res_gdt.c */
    860 extern errcode_t ext2fs_create_resize_inode(ext2_filsys fs);
    861
    862 /* rs_bitmap.c */
    863 extern errcode_t ext2fs_resize_generic_bitmap(__u32 new_end,
    864 __u32 new_real_end,
    865 ext2fs_generic_bitmap bmap);
    866 extern errcode_t ext2fs_resize_inode_bitmap(__u32 new_end, __u32 new_real_end,
    867 ext2fs_inode_bitmap bmap);
    868 extern errcode_t ext2fs_resize_block_bitmap(__u32 new_end, __u32 new_real_end,
    869 ext2fs_block_bitmap bmap);
    870 extern errcode_t ext2fs_copy_bitmap(ext2fs_generic_bitmap src,
    871 ext2fs_generic_bitmap *dest);
    872
    873 /* swapfs.c */
    874 extern void ext2fs_swap_ext_attr(char *to, char *from, int bufsize,
    875 int has_header);
    876 extern void ext2fs_swap_super(struct ext2_super_block * super);
    877 extern void ext2fs_swap_group_desc(struct ext2_group_desc *gdp);
    878 extern void ext2fs_swap_inode_full(ext2_filsys fs, struct ext2_inode_large *t,
    879 struct ext2_inode_large *f, int hostorder,
    880 int bufsize);
    881 extern void ext2fs_swap_inode(ext2_filsys fs,struct ext2_inode *t,
    882 struct ext2_inode *f, int hostorder);
    883
    884 /* valid_blk.c */
    885 extern int ext2fs_inode_has_valid_blocks(struct ext2_inode *inode);
    886
    887 /* version.c */
    888 extern int ext2fs_parse_version_string(const char *ver_string);
    889 extern int ext2fs_get_library_version(const char **ver_string,
    890 const char **date_string);
    891
    892 /* write_bb_file.c */
    893 extern errcode_t ext2fs_write_bb_FILE(ext2_badblocks_list bb_list,
    894 unsigned int flags,
    895 FILE *f);
    896
    897
    898 /* inline functions */
    899 extern errcode_t ext2fs_get_mem(unsigned long size, void *ptr);
    900 extern errcode_t ext2fs_free_mem(void *ptr);
    901 extern errcode_t ext2fs_resize_mem(unsigned long old_size,
    902 unsigned long size, void *ptr);
    903 extern void ext2fs_mark_super_dirty(ext2_filsys fs);
    904 extern void ext2fs_mark_changed(ext2_filsys fs);
    905 extern int ext2fs_test_changed(ext2_filsys fs);
    906 extern void ext2fs_mark_valid(ext2_filsys fs);
    907 extern void ext2fs_unmark_valid(ext2_filsys fs);
    908 extern int ext2fs_test_valid(ext2_filsys fs);
    909 extern void ext2fs_mark_ib_dirty(ext2_filsys fs);
    910 extern void ext2fs_mark_bb_dirty(ext2_filsys fs);
    911 extern int ext2fs_test_ib_dirty(ext2_filsys fs);
    912 extern int ext2fs_test_bb_dirty(ext2_filsys fs);
    913 extern int ext2fs_group_of_blk(ext2_filsys fs, blk_t blk);
    914 extern int ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino);
    915 extern blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
    916 struct ext2_inode *inode);
    917
    918 #ifdef __cplusplus
    919 }
    920 #endif
    921
    922 #endif