Phillip Lougher | ffae2cd | 2009-01-05 08:46:27 +0000 | [diff] [blame] | 1 | #ifndef SQUASHFS_FS |
| 2 | #define SQUASHFS_FS |
| 3 | /* |
| 4 | * Squashfs |
| 5 | * |
| 6 | * Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007, 2008 |
Phillip Lougher | d7f2ff6 | 2011-05-26 10:39:56 +0100 | [diff] [blame^] | 7 | * Phillip Lougher <phillip@squashfs.org.uk> |
Phillip Lougher | ffae2cd | 2009-01-05 08:46:27 +0000 | [diff] [blame] | 8 | * |
| 9 | * This program is free software; you can redistribute it and/or |
| 10 | * modify it under the terms of the GNU General Public License |
| 11 | * as published by the Free Software Foundation; either version 2, |
| 12 | * or (at your option) any later version. |
| 13 | * |
| 14 | * This program is distributed in the hope that it will be useful, |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | * GNU General Public License for more details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU General Public License |
| 20 | * along with this program; if not, write to the Free Software |
| 21 | * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 22 | * |
| 23 | * squashfs_fs.h |
| 24 | */ |
| 25 | |
| 26 | #define SQUASHFS_CACHED_FRAGMENTS CONFIG_SQUASHFS_FRAGMENT_CACHE_SIZE |
| 27 | #define SQUASHFS_MAJOR 4 |
| 28 | #define SQUASHFS_MINOR 0 |
Phillip Lougher | ffae2cd | 2009-01-05 08:46:27 +0000 | [diff] [blame] | 29 | #define SQUASHFS_START 0 |
| 30 | |
| 31 | /* size of metadata (inode and directory) blocks */ |
| 32 | #define SQUASHFS_METADATA_SIZE 8192 |
| 33 | #define SQUASHFS_METADATA_LOG 13 |
| 34 | |
| 35 | /* default size of data blocks */ |
| 36 | #define SQUASHFS_FILE_SIZE 131072 |
| 37 | #define SQUASHFS_FILE_LOG 17 |
| 38 | |
| 39 | #define SQUASHFS_FILE_MAX_SIZE 1048576 |
| 40 | #define SQUASHFS_FILE_MAX_LOG 20 |
| 41 | |
| 42 | /* Max number of uids and gids */ |
| 43 | #define SQUASHFS_IDS 65536 |
| 44 | |
| 45 | /* Max length of filename (not 255) */ |
| 46 | #define SQUASHFS_NAME_LEN 256 |
| 47 | |
| 48 | #define SQUASHFS_INVALID_FRAG (0xffffffffU) |
Phillip Lougher | f41d207 | 2010-05-17 03:17:04 +0100 | [diff] [blame] | 49 | #define SQUASHFS_INVALID_XATTR (0xffffffffU) |
Phillip Lougher | ffae2cd | 2009-01-05 08:46:27 +0000 | [diff] [blame] | 50 | #define SQUASHFS_INVALID_BLK (-1LL) |
| 51 | |
| 52 | /* Filesystem flags */ |
| 53 | #define SQUASHFS_NOI 0 |
| 54 | #define SQUASHFS_NOD 1 |
| 55 | #define SQUASHFS_NOF 3 |
| 56 | #define SQUASHFS_NO_FRAG 4 |
| 57 | #define SQUASHFS_ALWAYS_FRAG 5 |
| 58 | #define SQUASHFS_DUPLICATE 6 |
| 59 | #define SQUASHFS_EXPORT 7 |
Phillip Lougher | b7fc0ff | 2011-02-28 01:45:42 +0000 | [diff] [blame] | 60 | #define SQUASHFS_COMP_OPT 10 |
Phillip Lougher | ffae2cd | 2009-01-05 08:46:27 +0000 | [diff] [blame] | 61 | |
| 62 | #define SQUASHFS_BIT(flag, bit) ((flag >> bit) & 1) |
| 63 | |
| 64 | #define SQUASHFS_UNCOMPRESSED_INODES(flags) SQUASHFS_BIT(flags, \ |
| 65 | SQUASHFS_NOI) |
| 66 | |
| 67 | #define SQUASHFS_UNCOMPRESSED_DATA(flags) SQUASHFS_BIT(flags, \ |
| 68 | SQUASHFS_NOD) |
| 69 | |
| 70 | #define SQUASHFS_UNCOMPRESSED_FRAGMENTS(flags) SQUASHFS_BIT(flags, \ |
| 71 | SQUASHFS_NOF) |
| 72 | |
| 73 | #define SQUASHFS_NO_FRAGMENTS(flags) SQUASHFS_BIT(flags, \ |
| 74 | SQUASHFS_NO_FRAG) |
| 75 | |
| 76 | #define SQUASHFS_ALWAYS_FRAGMENTS(flags) SQUASHFS_BIT(flags, \ |
| 77 | SQUASHFS_ALWAYS_FRAG) |
| 78 | |
| 79 | #define SQUASHFS_DUPLICATES(flags) SQUASHFS_BIT(flags, \ |
| 80 | SQUASHFS_DUPLICATE) |
| 81 | |
| 82 | #define SQUASHFS_EXPORTABLE(flags) SQUASHFS_BIT(flags, \ |
| 83 | SQUASHFS_EXPORT) |
| 84 | |
Phillip Lougher | b7fc0ff | 2011-02-28 01:45:42 +0000 | [diff] [blame] | 85 | #define SQUASHFS_COMP_OPTS(flags) SQUASHFS_BIT(flags, \ |
| 86 | SQUASHFS_COMP_OPT) |
| 87 | |
Phillip Lougher | ffae2cd | 2009-01-05 08:46:27 +0000 | [diff] [blame] | 88 | /* Max number of types and file types */ |
| 89 | #define SQUASHFS_DIR_TYPE 1 |
| 90 | #define SQUASHFS_REG_TYPE 2 |
| 91 | #define SQUASHFS_SYMLINK_TYPE 3 |
| 92 | #define SQUASHFS_BLKDEV_TYPE 4 |
| 93 | #define SQUASHFS_CHRDEV_TYPE 5 |
| 94 | #define SQUASHFS_FIFO_TYPE 6 |
| 95 | #define SQUASHFS_SOCKET_TYPE 7 |
| 96 | #define SQUASHFS_LDIR_TYPE 8 |
| 97 | #define SQUASHFS_LREG_TYPE 9 |
| 98 | #define SQUASHFS_LSYMLINK_TYPE 10 |
| 99 | #define SQUASHFS_LBLKDEV_TYPE 11 |
| 100 | #define SQUASHFS_LCHRDEV_TYPE 12 |
| 101 | #define SQUASHFS_LFIFO_TYPE 13 |
| 102 | #define SQUASHFS_LSOCKET_TYPE 14 |
| 103 | |
Phillip Lougher | f41d207 | 2010-05-17 03:17:04 +0100 | [diff] [blame] | 104 | /* Xattr types */ |
| 105 | #define SQUASHFS_XATTR_USER 0 |
| 106 | #define SQUASHFS_XATTR_TRUSTED 1 |
| 107 | #define SQUASHFS_XATTR_SECURITY 2 |
| 108 | #define SQUASHFS_XATTR_VALUE_OOL 256 |
| 109 | #define SQUASHFS_XATTR_PREFIX_MASK 0xff |
| 110 | |
Phillip Lougher | ffae2cd | 2009-01-05 08:46:27 +0000 | [diff] [blame] | 111 | /* Flag whether block is compressed or uncompressed, bit is set if block is |
| 112 | * uncompressed */ |
| 113 | #define SQUASHFS_COMPRESSED_BIT (1 << 15) |
| 114 | |
| 115 | #define SQUASHFS_COMPRESSED_SIZE(B) (((B) & ~SQUASHFS_COMPRESSED_BIT) ? \ |
| 116 | (B) & ~SQUASHFS_COMPRESSED_BIT : SQUASHFS_COMPRESSED_BIT) |
| 117 | |
| 118 | #define SQUASHFS_COMPRESSED(B) (!((B) & SQUASHFS_COMPRESSED_BIT)) |
| 119 | |
| 120 | #define SQUASHFS_COMPRESSED_BIT_BLOCK (1 << 24) |
| 121 | |
| 122 | #define SQUASHFS_COMPRESSED_SIZE_BLOCK(B) ((B) & \ |
| 123 | ~SQUASHFS_COMPRESSED_BIT_BLOCK) |
| 124 | |
| 125 | #define SQUASHFS_COMPRESSED_BLOCK(B) (!((B) & SQUASHFS_COMPRESSED_BIT_BLOCK)) |
| 126 | |
| 127 | /* |
| 128 | * Inode number ops. Inodes consist of a compressed block number, and an |
| 129 | * uncompressed offset within that block |
| 130 | */ |
| 131 | #define SQUASHFS_INODE_BLK(A) ((unsigned int) ((A) >> 16)) |
| 132 | |
| 133 | #define SQUASHFS_INODE_OFFSET(A) ((unsigned int) ((A) & 0xffff)) |
| 134 | |
| 135 | #define SQUASHFS_MKINODE(A, B) ((long long)(((long long) (A)\ |
| 136 | << 16) + (B))) |
| 137 | |
| 138 | /* Translate between VFS mode and squashfs mode */ |
| 139 | #define SQUASHFS_MODE(A) ((A) & 0xfff) |
| 140 | |
| 141 | /* fragment and fragment table defines */ |
| 142 | #define SQUASHFS_FRAGMENT_BYTES(A) \ |
| 143 | ((A) * sizeof(struct squashfs_fragment_entry)) |
| 144 | |
| 145 | #define SQUASHFS_FRAGMENT_INDEX(A) (SQUASHFS_FRAGMENT_BYTES(A) / \ |
| 146 | SQUASHFS_METADATA_SIZE) |
| 147 | |
| 148 | #define SQUASHFS_FRAGMENT_INDEX_OFFSET(A) (SQUASHFS_FRAGMENT_BYTES(A) % \ |
| 149 | SQUASHFS_METADATA_SIZE) |
| 150 | |
| 151 | #define SQUASHFS_FRAGMENT_INDEXES(A) ((SQUASHFS_FRAGMENT_BYTES(A) + \ |
| 152 | SQUASHFS_METADATA_SIZE - 1) / \ |
| 153 | SQUASHFS_METADATA_SIZE) |
| 154 | |
| 155 | #define SQUASHFS_FRAGMENT_INDEX_BYTES(A) (SQUASHFS_FRAGMENT_INDEXES(A) *\ |
| 156 | sizeof(u64)) |
| 157 | |
| 158 | /* inode lookup table defines */ |
| 159 | #define SQUASHFS_LOOKUP_BYTES(A) ((A) * sizeof(u64)) |
| 160 | |
| 161 | #define SQUASHFS_LOOKUP_BLOCK(A) (SQUASHFS_LOOKUP_BYTES(A) / \ |
| 162 | SQUASHFS_METADATA_SIZE) |
| 163 | |
| 164 | #define SQUASHFS_LOOKUP_BLOCK_OFFSET(A) (SQUASHFS_LOOKUP_BYTES(A) % \ |
| 165 | SQUASHFS_METADATA_SIZE) |
| 166 | |
| 167 | #define SQUASHFS_LOOKUP_BLOCKS(A) ((SQUASHFS_LOOKUP_BYTES(A) + \ |
| 168 | SQUASHFS_METADATA_SIZE - 1) / \ |
| 169 | SQUASHFS_METADATA_SIZE) |
| 170 | |
| 171 | #define SQUASHFS_LOOKUP_BLOCK_BYTES(A) (SQUASHFS_LOOKUP_BLOCKS(A) *\ |
| 172 | sizeof(u64)) |
| 173 | |
| 174 | /* uid/gid lookup table defines */ |
| 175 | #define SQUASHFS_ID_BYTES(A) ((A) * sizeof(unsigned int)) |
| 176 | |
| 177 | #define SQUASHFS_ID_BLOCK(A) (SQUASHFS_ID_BYTES(A) / \ |
| 178 | SQUASHFS_METADATA_SIZE) |
| 179 | |
| 180 | #define SQUASHFS_ID_BLOCK_OFFSET(A) (SQUASHFS_ID_BYTES(A) % \ |
| 181 | SQUASHFS_METADATA_SIZE) |
| 182 | |
| 183 | #define SQUASHFS_ID_BLOCKS(A) ((SQUASHFS_ID_BYTES(A) + \ |
| 184 | SQUASHFS_METADATA_SIZE - 1) / \ |
| 185 | SQUASHFS_METADATA_SIZE) |
| 186 | |
| 187 | #define SQUASHFS_ID_BLOCK_BYTES(A) (SQUASHFS_ID_BLOCKS(A) *\ |
| 188 | sizeof(u64)) |
Phillip Lougher | 4b5397d | 2010-05-14 20:48:47 +0100 | [diff] [blame] | 189 | /* xattr id lookup table defines */ |
| 190 | #define SQUASHFS_XATTR_BYTES(A) ((A) * sizeof(struct squashfs_xattr_id)) |
| 191 | |
| 192 | #define SQUASHFS_XATTR_BLOCK(A) (SQUASHFS_XATTR_BYTES(A) / \ |
| 193 | SQUASHFS_METADATA_SIZE) |
| 194 | |
| 195 | #define SQUASHFS_XATTR_BLOCK_OFFSET(A) (SQUASHFS_XATTR_BYTES(A) % \ |
| 196 | SQUASHFS_METADATA_SIZE) |
| 197 | |
| 198 | #define SQUASHFS_XATTR_BLOCKS(A) ((SQUASHFS_XATTR_BYTES(A) + \ |
| 199 | SQUASHFS_METADATA_SIZE - 1) / \ |
| 200 | SQUASHFS_METADATA_SIZE) |
| 201 | |
| 202 | #define SQUASHFS_XATTR_BLOCK_BYTES(A) (SQUASHFS_XATTR_BLOCKS(A) *\ |
| 203 | sizeof(u64)) |
| 204 | #define SQUASHFS_XATTR_BLK(A) ((unsigned int) ((A) >> 16)) |
| 205 | |
| 206 | #define SQUASHFS_XATTR_OFFSET(A) ((unsigned int) ((A) & 0xffff)) |
Phillip Lougher | ffae2cd | 2009-01-05 08:46:27 +0000 | [diff] [blame] | 207 | |
| 208 | /* cached data constants for filesystem */ |
| 209 | #define SQUASHFS_CACHED_BLKS 8 |
| 210 | |
| 211 | #define SQUASHFS_MAX_FILE_SIZE_LOG 64 |
| 212 | |
| 213 | #define SQUASHFS_MAX_FILE_SIZE (1LL << \ |
| 214 | (SQUASHFS_MAX_FILE_SIZE_LOG - 2)) |
| 215 | |
Phillip Lougher | ffae2cd | 2009-01-05 08:46:27 +0000 | [diff] [blame] | 216 | /* meta index cache */ |
| 217 | #define SQUASHFS_META_INDEXES (SQUASHFS_METADATA_SIZE / sizeof(unsigned int)) |
| 218 | #define SQUASHFS_META_ENTRIES 127 |
| 219 | #define SQUASHFS_META_SLOTS 8 |
| 220 | |
| 221 | struct meta_entry { |
| 222 | u64 data_block; |
| 223 | unsigned int index_block; |
| 224 | unsigned short offset; |
| 225 | unsigned short pad; |
| 226 | }; |
| 227 | |
| 228 | struct meta_index { |
| 229 | unsigned int inode_number; |
| 230 | unsigned int offset; |
| 231 | unsigned short entries; |
| 232 | unsigned short skip; |
| 233 | unsigned short locked; |
| 234 | unsigned short pad; |
| 235 | struct meta_entry meta_entry[SQUASHFS_META_ENTRIES]; |
| 236 | }; |
| 237 | |
| 238 | |
| 239 | /* |
| 240 | * definitions for structures on disk |
| 241 | */ |
Phillip Lougher | dc32567 | 2009-10-14 03:58:11 +0100 | [diff] [blame] | 242 | #define ZLIB_COMPRESSION 1 |
| 243 | #define LZMA_COMPRESSION 2 |
| 244 | #define LZO_COMPRESSION 3 |
Phillip Lougher | 81bb8de | 2010-12-09 02:02:29 +0000 | [diff] [blame] | 245 | #define XZ_COMPRESSION 4 |
Phillip Lougher | ffae2cd | 2009-01-05 08:46:27 +0000 | [diff] [blame] | 246 | |
| 247 | struct squashfs_super_block { |
| 248 | __le32 s_magic; |
| 249 | __le32 inodes; |
| 250 | __le32 mkfs_time; |
| 251 | __le32 block_size; |
| 252 | __le32 fragments; |
| 253 | __le16 compression; |
| 254 | __le16 block_log; |
| 255 | __le16 flags; |
| 256 | __le16 no_ids; |
| 257 | __le16 s_major; |
| 258 | __le16 s_minor; |
| 259 | __le64 root_inode; |
| 260 | __le64 bytes_used; |
| 261 | __le64 id_table_start; |
Phillip Lougher | 4b5397d | 2010-05-14 20:48:47 +0100 | [diff] [blame] | 262 | __le64 xattr_id_table_start; |
Phillip Lougher | ffae2cd | 2009-01-05 08:46:27 +0000 | [diff] [blame] | 263 | __le64 inode_table_start; |
| 264 | __le64 directory_table_start; |
| 265 | __le64 fragment_table_start; |
| 266 | __le64 lookup_table_start; |
| 267 | }; |
| 268 | |
| 269 | struct squashfs_dir_index { |
| 270 | __le32 index; |
| 271 | __le32 start_block; |
| 272 | __le32 size; |
| 273 | unsigned char name[0]; |
| 274 | }; |
| 275 | |
| 276 | struct squashfs_base_inode { |
| 277 | __le16 inode_type; |
| 278 | __le16 mode; |
| 279 | __le16 uid; |
| 280 | __le16 guid; |
| 281 | __le32 mtime; |
Phillip Lougher | 66048c3 | 2010-08-08 22:29:33 +0000 | [diff] [blame] | 282 | __le32 inode_number; |
Phillip Lougher | ffae2cd | 2009-01-05 08:46:27 +0000 | [diff] [blame] | 283 | }; |
| 284 | |
| 285 | struct squashfs_ipc_inode { |
| 286 | __le16 inode_type; |
| 287 | __le16 mode; |
| 288 | __le16 uid; |
| 289 | __le16 guid; |
| 290 | __le32 mtime; |
Phillip Lougher | 66048c3 | 2010-08-08 22:29:33 +0000 | [diff] [blame] | 291 | __le32 inode_number; |
Phillip Lougher | ffae2cd | 2009-01-05 08:46:27 +0000 | [diff] [blame] | 292 | __le32 nlink; |
| 293 | }; |
| 294 | |
Phillip Lougher | 67f66cc | 2010-05-17 04:06:56 +0100 | [diff] [blame] | 295 | struct squashfs_lipc_inode { |
| 296 | __le16 inode_type; |
| 297 | __le16 mode; |
| 298 | __le16 uid; |
| 299 | __le16 guid; |
| 300 | __le32 mtime; |
Phillip Lougher | 66048c3 | 2010-08-08 22:29:33 +0000 | [diff] [blame] | 301 | __le32 inode_number; |
Phillip Lougher | 67f66cc | 2010-05-17 04:06:56 +0100 | [diff] [blame] | 302 | __le32 nlink; |
| 303 | __le32 xattr; |
| 304 | }; |
| 305 | |
Phillip Lougher | ffae2cd | 2009-01-05 08:46:27 +0000 | [diff] [blame] | 306 | struct squashfs_dev_inode { |
| 307 | __le16 inode_type; |
| 308 | __le16 mode; |
| 309 | __le16 uid; |
| 310 | __le16 guid; |
| 311 | __le32 mtime; |
Phillip Lougher | 66048c3 | 2010-08-08 22:29:33 +0000 | [diff] [blame] | 312 | __le32 inode_number; |
Phillip Lougher | ffae2cd | 2009-01-05 08:46:27 +0000 | [diff] [blame] | 313 | __le32 nlink; |
| 314 | __le32 rdev; |
| 315 | }; |
| 316 | |
Phillip Lougher | 67f66cc | 2010-05-17 04:06:56 +0100 | [diff] [blame] | 317 | struct squashfs_ldev_inode { |
| 318 | __le16 inode_type; |
| 319 | __le16 mode; |
| 320 | __le16 uid; |
| 321 | __le16 guid; |
| 322 | __le32 mtime; |
Phillip Lougher | 66048c3 | 2010-08-08 22:29:33 +0000 | [diff] [blame] | 323 | __le32 inode_number; |
Phillip Lougher | 67f66cc | 2010-05-17 04:06:56 +0100 | [diff] [blame] | 324 | __le32 nlink; |
| 325 | __le32 rdev; |
| 326 | __le32 xattr; |
| 327 | }; |
| 328 | |
Phillip Lougher | ffae2cd | 2009-01-05 08:46:27 +0000 | [diff] [blame] | 329 | struct squashfs_symlink_inode { |
| 330 | __le16 inode_type; |
| 331 | __le16 mode; |
| 332 | __le16 uid; |
| 333 | __le16 guid; |
| 334 | __le32 mtime; |
Phillip Lougher | 66048c3 | 2010-08-08 22:29:33 +0000 | [diff] [blame] | 335 | __le32 inode_number; |
Phillip Lougher | ffae2cd | 2009-01-05 08:46:27 +0000 | [diff] [blame] | 336 | __le32 nlink; |
| 337 | __le32 symlink_size; |
| 338 | char symlink[0]; |
| 339 | }; |
| 340 | |
| 341 | struct squashfs_reg_inode { |
| 342 | __le16 inode_type; |
| 343 | __le16 mode; |
| 344 | __le16 uid; |
| 345 | __le16 guid; |
| 346 | __le32 mtime; |
Phillip Lougher | 66048c3 | 2010-08-08 22:29:33 +0000 | [diff] [blame] | 347 | __le32 inode_number; |
Phillip Lougher | ffae2cd | 2009-01-05 08:46:27 +0000 | [diff] [blame] | 348 | __le32 start_block; |
| 349 | __le32 fragment; |
| 350 | __le32 offset; |
| 351 | __le32 file_size; |
| 352 | __le16 block_list[0]; |
| 353 | }; |
| 354 | |
| 355 | struct squashfs_lreg_inode { |
| 356 | __le16 inode_type; |
| 357 | __le16 mode; |
| 358 | __le16 uid; |
| 359 | __le16 guid; |
| 360 | __le32 mtime; |
Phillip Lougher | 66048c3 | 2010-08-08 22:29:33 +0000 | [diff] [blame] | 361 | __le32 inode_number; |
Phillip Lougher | ffae2cd | 2009-01-05 08:46:27 +0000 | [diff] [blame] | 362 | __le64 start_block; |
| 363 | __le64 file_size; |
| 364 | __le64 sparse; |
| 365 | __le32 nlink; |
| 366 | __le32 fragment; |
| 367 | __le32 offset; |
| 368 | __le32 xattr; |
| 369 | __le16 block_list[0]; |
| 370 | }; |
| 371 | |
| 372 | struct squashfs_dir_inode { |
| 373 | __le16 inode_type; |
| 374 | __le16 mode; |
| 375 | __le16 uid; |
| 376 | __le16 guid; |
| 377 | __le32 mtime; |
Phillip Lougher | 66048c3 | 2010-08-08 22:29:33 +0000 | [diff] [blame] | 378 | __le32 inode_number; |
Phillip Lougher | ffae2cd | 2009-01-05 08:46:27 +0000 | [diff] [blame] | 379 | __le32 start_block; |
| 380 | __le32 nlink; |
| 381 | __le16 file_size; |
| 382 | __le16 offset; |
| 383 | __le32 parent_inode; |
| 384 | }; |
| 385 | |
| 386 | struct squashfs_ldir_inode { |
| 387 | __le16 inode_type; |
| 388 | __le16 mode; |
| 389 | __le16 uid; |
| 390 | __le16 guid; |
| 391 | __le32 mtime; |
Phillip Lougher | 66048c3 | 2010-08-08 22:29:33 +0000 | [diff] [blame] | 392 | __le32 inode_number; |
Phillip Lougher | ffae2cd | 2009-01-05 08:46:27 +0000 | [diff] [blame] | 393 | __le32 nlink; |
| 394 | __le32 file_size; |
| 395 | __le32 start_block; |
| 396 | __le32 parent_inode; |
| 397 | __le16 i_count; |
| 398 | __le16 offset; |
| 399 | __le32 xattr; |
| 400 | struct squashfs_dir_index index[0]; |
| 401 | }; |
| 402 | |
| 403 | union squashfs_inode { |
| 404 | struct squashfs_base_inode base; |
| 405 | struct squashfs_dev_inode dev; |
Phillip Lougher | 67f66cc | 2010-05-17 04:06:56 +0100 | [diff] [blame] | 406 | struct squashfs_ldev_inode ldev; |
Phillip Lougher | ffae2cd | 2009-01-05 08:46:27 +0000 | [diff] [blame] | 407 | struct squashfs_symlink_inode symlink; |
| 408 | struct squashfs_reg_inode reg; |
| 409 | struct squashfs_lreg_inode lreg; |
| 410 | struct squashfs_dir_inode dir; |
| 411 | struct squashfs_ldir_inode ldir; |
| 412 | struct squashfs_ipc_inode ipc; |
Phillip Lougher | 67f66cc | 2010-05-17 04:06:56 +0100 | [diff] [blame] | 413 | struct squashfs_lipc_inode lipc; |
Phillip Lougher | ffae2cd | 2009-01-05 08:46:27 +0000 | [diff] [blame] | 414 | }; |
| 415 | |
| 416 | struct squashfs_dir_entry { |
| 417 | __le16 offset; |
| 418 | __le16 inode_number; |
| 419 | __le16 type; |
| 420 | __le16 size; |
| 421 | char name[0]; |
| 422 | }; |
| 423 | |
| 424 | struct squashfs_dir_header { |
| 425 | __le32 count; |
| 426 | __le32 start_block; |
| 427 | __le32 inode_number; |
| 428 | }; |
| 429 | |
| 430 | struct squashfs_fragment_entry { |
| 431 | __le64 start_block; |
| 432 | __le32 size; |
| 433 | unsigned int unused; |
| 434 | }; |
| 435 | |
Phillip Lougher | f41d207 | 2010-05-17 03:17:04 +0100 | [diff] [blame] | 436 | struct squashfs_xattr_entry { |
| 437 | __le16 type; |
| 438 | __le16 size; |
| 439 | char data[0]; |
| 440 | }; |
| 441 | |
| 442 | struct squashfs_xattr_val { |
| 443 | __le32 vsize; |
| 444 | char value[0]; |
| 445 | }; |
| 446 | |
Phillip Lougher | 4b5397d | 2010-05-14 20:48:47 +0100 | [diff] [blame] | 447 | struct squashfs_xattr_id { |
| 448 | __le64 xattr; |
| 449 | __le32 count; |
| 450 | __le32 size; |
| 451 | }; |
| 452 | |
| 453 | struct squashfs_xattr_id_table { |
| 454 | __le64 xattr_table_start; |
| 455 | __le32 xattr_ids; |
| 456 | __le32 unused; |
| 457 | }; |
| 458 | |
Phillip Lougher | ffae2cd | 2009-01-05 08:46:27 +0000 | [diff] [blame] | 459 | #endif |