1 /**************************************************************************** 2 **************************************************************************** 3 *** 4 *** This header was automatically generated from a Linux kernel header 5 *** of the same name, to make information necessary for userspace to 6 *** call into the kernel available to libc. It contains only constants, 7 *** structures, and macros generated from the original header, and thus, 8 *** contains no copyrightable information. 9 *** 10 *** To edit the content of this header, modify the corresponding 11 *** source file (e.g. under external/kernel-headers/original/) then 12 *** run bionic/libc/kernel/tools/update_all.py 13 *** 14 *** Any manual change here will be lost the next time this script will 15 *** be run. You've been warned! 16 *** 17 **************************************************************************** 18 ****************************************************************************/ 19 #ifndef _BTRFS_CTREE_H_ 20 #define _BTRFS_CTREE_H_ 21 #include <linux/btrfs.h> 22 #include <linux/types.h> 23 #define BTRFS_ROOT_TREE_OBJECTID 1ULL 24 #define BTRFS_EXTENT_TREE_OBJECTID 2ULL 25 #define BTRFS_CHUNK_TREE_OBJECTID 3ULL 26 #define BTRFS_DEV_TREE_OBJECTID 4ULL 27 #define BTRFS_FS_TREE_OBJECTID 5ULL 28 #define BTRFS_ROOT_TREE_DIR_OBJECTID 6ULL 29 #define BTRFS_CSUM_TREE_OBJECTID 7ULL 30 #define BTRFS_QUOTA_TREE_OBJECTID 8ULL 31 #define BTRFS_UUID_TREE_OBJECTID 9ULL 32 #define BTRFS_FREE_SPACE_TREE_OBJECTID 10ULL 33 #define BTRFS_DEV_STATS_OBJECTID 0ULL 34 #define BTRFS_BALANCE_OBJECTID - 4ULL 35 #define BTRFS_ORPHAN_OBJECTID - 5ULL 36 #define BTRFS_TREE_LOG_OBJECTID - 6ULL 37 #define BTRFS_TREE_LOG_FIXUP_OBJECTID - 7ULL 38 #define BTRFS_TREE_RELOC_OBJECTID - 8ULL 39 #define BTRFS_DATA_RELOC_TREE_OBJECTID - 9ULL 40 #define BTRFS_EXTENT_CSUM_OBJECTID - 10ULL 41 #define BTRFS_FREE_SPACE_OBJECTID - 11ULL 42 #define BTRFS_FREE_INO_OBJECTID - 12ULL 43 #define BTRFS_MULTIPLE_OBJECTIDS - 255ULL 44 #define BTRFS_FIRST_FREE_OBJECTID 256ULL 45 #define BTRFS_LAST_FREE_OBJECTID - 256ULL 46 #define BTRFS_FIRST_CHUNK_TREE_OBJECTID 256ULL 47 #define BTRFS_DEV_ITEMS_OBJECTID 1ULL 48 #define BTRFS_BTREE_INODE_OBJECTID 1 49 #define BTRFS_EMPTY_SUBVOL_DIR_OBJECTID 2 50 #define BTRFS_DEV_REPLACE_DEVID 0ULL 51 #define BTRFS_INODE_ITEM_KEY 1 52 #define BTRFS_INODE_REF_KEY 12 53 #define BTRFS_INODE_EXTREF_KEY 13 54 #define BTRFS_XATTR_ITEM_KEY 24 55 #define BTRFS_ORPHAN_ITEM_KEY 48 56 #define BTRFS_DIR_LOG_ITEM_KEY 60 57 #define BTRFS_DIR_LOG_INDEX_KEY 72 58 #define BTRFS_DIR_ITEM_KEY 84 59 #define BTRFS_DIR_INDEX_KEY 96 60 #define BTRFS_EXTENT_DATA_KEY 108 61 #define BTRFS_EXTENT_CSUM_KEY 128 62 #define BTRFS_ROOT_ITEM_KEY 132 63 #define BTRFS_ROOT_BACKREF_KEY 144 64 #define BTRFS_ROOT_REF_KEY 156 65 #define BTRFS_EXTENT_ITEM_KEY 168 66 #define BTRFS_METADATA_ITEM_KEY 169 67 #define BTRFS_TREE_BLOCK_REF_KEY 176 68 #define BTRFS_EXTENT_DATA_REF_KEY 178 69 #define BTRFS_EXTENT_REF_V0_KEY 180 70 #define BTRFS_SHARED_BLOCK_REF_KEY 182 71 #define BTRFS_SHARED_DATA_REF_KEY 184 72 #define BTRFS_BLOCK_GROUP_ITEM_KEY 192 73 #define BTRFS_FREE_SPACE_INFO_KEY 198 74 #define BTRFS_FREE_SPACE_EXTENT_KEY 199 75 #define BTRFS_FREE_SPACE_BITMAP_KEY 200 76 #define BTRFS_DEV_EXTENT_KEY 204 77 #define BTRFS_DEV_ITEM_KEY 216 78 #define BTRFS_CHUNK_ITEM_KEY 228 79 #define BTRFS_QGROUP_STATUS_KEY 240 80 #define BTRFS_QGROUP_INFO_KEY 242 81 #define BTRFS_QGROUP_LIMIT_KEY 244 82 #define BTRFS_QGROUP_RELATION_KEY 246 83 #define BTRFS_BALANCE_ITEM_KEY 248 84 #define BTRFS_TEMPORARY_ITEM_KEY 248 85 #define BTRFS_DEV_STATS_KEY 249 86 #define BTRFS_PERSISTENT_ITEM_KEY 249 87 #define BTRFS_DEV_REPLACE_KEY 250 88 #if BTRFS_UUID_SIZE != 16 89 #error "UUID items require BTRFS_UUID_SIZE == 16!" 90 #endif 91 #define BTRFS_UUID_KEY_SUBVOL 251 92 #define BTRFS_UUID_KEY_RECEIVED_SUBVOL 252 93 #define BTRFS_STRING_ITEM_KEY 253 94 #define BTRFS_CSUM_SIZE 32 95 enum btrfs_csum_type { 96 BTRFS_CSUM_TYPE_CRC32 = 0, 97 BTRFS_CSUM_TYPE_XXHASH = 1, 98 BTRFS_CSUM_TYPE_SHA256 = 2, 99 BTRFS_CSUM_TYPE_BLAKE2 = 3, 100 }; 101 #define BTRFS_FT_UNKNOWN 0 102 #define BTRFS_FT_REG_FILE 1 103 #define BTRFS_FT_DIR 2 104 #define BTRFS_FT_CHRDEV 3 105 #define BTRFS_FT_BLKDEV 4 106 #define BTRFS_FT_FIFO 5 107 #define BTRFS_FT_SOCK 6 108 #define BTRFS_FT_SYMLINK 7 109 #define BTRFS_FT_XATTR 8 110 #define BTRFS_FT_MAX 9 111 struct btrfs_disk_key { 112 __le64 objectid; 113 __u8 type; 114 __le64 offset; 115 } __attribute__((__packed__)); 116 struct btrfs_key { 117 __u64 objectid; 118 __u8 type; 119 __u64 offset; 120 } __attribute__((__packed__)); 121 struct btrfs_dev_item { 122 __le64 devid; 123 __le64 total_bytes; 124 __le64 bytes_used; 125 __le32 io_align; 126 __le32 io_width; 127 __le32 sector_size; 128 __le64 type; 129 __le64 generation; 130 __le64 start_offset; 131 __le32 dev_group; 132 __u8 seek_speed; 133 __u8 bandwidth; 134 __u8 uuid[BTRFS_UUID_SIZE]; 135 __u8 fsid[BTRFS_UUID_SIZE]; 136 } __attribute__((__packed__)); 137 struct btrfs_stripe { 138 __le64 devid; 139 __le64 offset; 140 __u8 dev_uuid[BTRFS_UUID_SIZE]; 141 } __attribute__((__packed__)); 142 struct btrfs_chunk { 143 __le64 length; 144 __le64 owner; 145 __le64 stripe_len; 146 __le64 type; 147 __le32 io_align; 148 __le32 io_width; 149 __le32 sector_size; 150 __le16 num_stripes; 151 __le16 sub_stripes; 152 struct btrfs_stripe stripe; 153 } __attribute__((__packed__)); 154 #define BTRFS_FREE_SPACE_EXTENT 1 155 #define BTRFS_FREE_SPACE_BITMAP 2 156 struct btrfs_free_space_entry { 157 __le64 offset; 158 __le64 bytes; 159 __u8 type; 160 } __attribute__((__packed__)); 161 struct btrfs_free_space_header { 162 struct btrfs_disk_key location; 163 __le64 generation; 164 __le64 num_entries; 165 __le64 num_bitmaps; 166 } __attribute__((__packed__)); 167 #define BTRFS_HEADER_FLAG_WRITTEN (1ULL << 0) 168 #define BTRFS_HEADER_FLAG_RELOC (1ULL << 1) 169 #define BTRFS_SUPER_FLAG_ERROR (1ULL << 2) 170 #define BTRFS_SUPER_FLAG_SEEDING (1ULL << 32) 171 #define BTRFS_SUPER_FLAG_METADUMP (1ULL << 33) 172 #define BTRFS_SUPER_FLAG_METADUMP_V2 (1ULL << 34) 173 #define BTRFS_SUPER_FLAG_CHANGING_FSID (1ULL << 35) 174 #define BTRFS_SUPER_FLAG_CHANGING_FSID_V2 (1ULL << 36) 175 struct btrfs_extent_item { 176 __le64 refs; 177 __le64 generation; 178 __le64 flags; 179 } __attribute__((__packed__)); 180 struct btrfs_extent_item_v0 { 181 __le32 refs; 182 } __attribute__((__packed__)); 183 #define BTRFS_EXTENT_FLAG_DATA (1ULL << 0) 184 #define BTRFS_EXTENT_FLAG_TREE_BLOCK (1ULL << 1) 185 #define BTRFS_BLOCK_FLAG_FULL_BACKREF (1ULL << 8) 186 #define BTRFS_EXTENT_FLAG_SUPER (1ULL << 48) 187 struct btrfs_tree_block_info { 188 struct btrfs_disk_key key; 189 __u8 level; 190 } __attribute__((__packed__)); 191 struct btrfs_extent_data_ref { 192 __le64 root; 193 __le64 objectid; 194 __le64 offset; 195 __le32 count; 196 } __attribute__((__packed__)); 197 struct btrfs_shared_data_ref { 198 __le32 count; 199 } __attribute__((__packed__)); 200 struct btrfs_extent_inline_ref { 201 __u8 type; 202 __le64 offset; 203 } __attribute__((__packed__)); 204 struct btrfs_extent_ref_v0 { 205 __le64 root; 206 __le64 generation; 207 __le64 objectid; 208 __le32 count; 209 } __attribute__((__packed__)); 210 struct btrfs_dev_extent { 211 __le64 chunk_tree; 212 __le64 chunk_objectid; 213 __le64 chunk_offset; 214 __le64 length; 215 __u8 chunk_tree_uuid[BTRFS_UUID_SIZE]; 216 } __attribute__((__packed__)); 217 struct btrfs_inode_ref { 218 __le64 index; 219 __le16 name_len; 220 } __attribute__((__packed__)); 221 struct btrfs_inode_extref { 222 __le64 parent_objectid; 223 __le64 index; 224 __le16 name_len; 225 __u8 name[0]; 226 } __attribute__((__packed__)); 227 struct btrfs_timespec { 228 __le64 sec; 229 __le32 nsec; 230 } __attribute__((__packed__)); 231 struct btrfs_inode_item { 232 __le64 generation; 233 __le64 transid; 234 __le64 size; 235 __le64 nbytes; 236 __le64 block_group; 237 __le32 nlink; 238 __le32 uid; 239 __le32 gid; 240 __le32 mode; 241 __le64 rdev; 242 __le64 flags; 243 __le64 sequence; 244 __le64 reserved[4]; 245 struct btrfs_timespec atime; 246 struct btrfs_timespec ctime; 247 struct btrfs_timespec mtime; 248 struct btrfs_timespec otime; 249 } __attribute__((__packed__)); 250 struct btrfs_dir_log_item { 251 __le64 end; 252 } __attribute__((__packed__)); 253 struct btrfs_dir_item { 254 struct btrfs_disk_key location; 255 __le64 transid; 256 __le16 data_len; 257 __le16 name_len; 258 __u8 type; 259 } __attribute__((__packed__)); 260 #define BTRFS_ROOT_SUBVOL_RDONLY (1ULL << 0) 261 #define BTRFS_ROOT_SUBVOL_DEAD (1ULL << 48) 262 struct btrfs_root_item { 263 struct btrfs_inode_item inode; 264 __le64 generation; 265 __le64 root_dirid; 266 __le64 bytenr; 267 __le64 byte_limit; 268 __le64 bytes_used; 269 __le64 last_snapshot; 270 __le64 flags; 271 __le32 refs; 272 struct btrfs_disk_key drop_progress; 273 __u8 drop_level; 274 __u8 level; 275 __le64 generation_v2; 276 __u8 uuid[BTRFS_UUID_SIZE]; 277 __u8 parent_uuid[BTRFS_UUID_SIZE]; 278 __u8 received_uuid[BTRFS_UUID_SIZE]; 279 __le64 ctransid; 280 __le64 otransid; 281 __le64 stransid; 282 __le64 rtransid; 283 struct btrfs_timespec ctime; 284 struct btrfs_timespec otime; 285 struct btrfs_timespec stime; 286 struct btrfs_timespec rtime; 287 __le64 reserved[8]; 288 } __attribute__((__packed__)); 289 struct btrfs_root_ref { 290 __le64 dirid; 291 __le64 sequence; 292 __le16 name_len; 293 } __attribute__((__packed__)); 294 struct btrfs_disk_balance_args { 295 __le64 profiles; 296 union { 297 __le64 usage; 298 struct { 299 __le32 usage_min; 300 __le32 usage_max; 301 }; 302 }; 303 __le64 devid; 304 __le64 pstart; 305 __le64 pend; 306 __le64 vstart; 307 __le64 vend; 308 __le64 target; 309 __le64 flags; 310 union { 311 __le64 limit; 312 struct { 313 __le32 limit_min; 314 __le32 limit_max; 315 }; 316 }; 317 __le32 stripes_min; 318 __le32 stripes_max; 319 __le64 unused[6]; 320 } __attribute__((__packed__)); 321 struct btrfs_balance_item { 322 __le64 flags; 323 struct btrfs_disk_balance_args data; 324 struct btrfs_disk_balance_args meta; 325 struct btrfs_disk_balance_args sys; 326 __le64 unused[4]; 327 } __attribute__((__packed__)); 328 enum { 329 BTRFS_FILE_EXTENT_INLINE = 0, 330 BTRFS_FILE_EXTENT_REG = 1, 331 BTRFS_FILE_EXTENT_PREALLOC = 2, 332 BTRFS_NR_FILE_EXTENT_TYPES = 3, 333 }; 334 struct btrfs_file_extent_item { 335 __le64 generation; 336 __le64 ram_bytes; 337 __u8 compression; 338 __u8 encryption; 339 __le16 other_encoding; 340 __u8 type; 341 __le64 disk_bytenr; 342 __le64 disk_num_bytes; 343 __le64 offset; 344 __le64 num_bytes; 345 } __attribute__((__packed__)); 346 struct btrfs_csum_item { 347 __u8 csum; 348 } __attribute__((__packed__)); 349 struct btrfs_dev_stats_item { 350 __le64 values[BTRFS_DEV_STAT_VALUES_MAX]; 351 } __attribute__((__packed__)); 352 #define BTRFS_DEV_REPLACE_ITEM_CONT_READING_FROM_SRCDEV_MODE_ALWAYS 0 353 #define BTRFS_DEV_REPLACE_ITEM_CONT_READING_FROM_SRCDEV_MODE_AVOID 1 354 struct btrfs_dev_replace_item { 355 __le64 src_devid; 356 __le64 cursor_left; 357 __le64 cursor_right; 358 __le64 cont_reading_from_srcdev_mode; 359 __le64 replace_state; 360 __le64 time_started; 361 __le64 time_stopped; 362 __le64 num_write_errors; 363 __le64 num_uncorrectable_read_errors; 364 } __attribute__((__packed__)); 365 #define BTRFS_BLOCK_GROUP_DATA (1ULL << 0) 366 #define BTRFS_BLOCK_GROUP_SYSTEM (1ULL << 1) 367 #define BTRFS_BLOCK_GROUP_METADATA (1ULL << 2) 368 #define BTRFS_BLOCK_GROUP_RAID0 (1ULL << 3) 369 #define BTRFS_BLOCK_GROUP_RAID1 (1ULL << 4) 370 #define BTRFS_BLOCK_GROUP_DUP (1ULL << 5) 371 #define BTRFS_BLOCK_GROUP_RAID10 (1ULL << 6) 372 #define BTRFS_BLOCK_GROUP_RAID5 (1ULL << 7) 373 #define BTRFS_BLOCK_GROUP_RAID6 (1ULL << 8) 374 #define BTRFS_BLOCK_GROUP_RAID1C3 (1ULL << 9) 375 #define BTRFS_BLOCK_GROUP_RAID1C4 (1ULL << 10) 376 #define BTRFS_BLOCK_GROUP_RESERVED (BTRFS_AVAIL_ALLOC_BIT_SINGLE | BTRFS_SPACE_INFO_GLOBAL_RSV) 377 enum btrfs_raid_types { 378 BTRFS_RAID_RAID10, 379 BTRFS_RAID_RAID1, 380 BTRFS_RAID_DUP, 381 BTRFS_RAID_RAID0, 382 BTRFS_RAID_SINGLE, 383 BTRFS_RAID_RAID5, 384 BTRFS_RAID_RAID6, 385 BTRFS_RAID_RAID1C3, 386 BTRFS_RAID_RAID1C4, 387 BTRFS_NR_RAID_TYPES 388 }; 389 #define BTRFS_BLOCK_GROUP_TYPE_MASK (BTRFS_BLOCK_GROUP_DATA | BTRFS_BLOCK_GROUP_SYSTEM | BTRFS_BLOCK_GROUP_METADATA) 390 #define BTRFS_BLOCK_GROUP_PROFILE_MASK (BTRFS_BLOCK_GROUP_RAID0 | BTRFS_BLOCK_GROUP_RAID1 | BTRFS_BLOCK_GROUP_RAID1C3 | BTRFS_BLOCK_GROUP_RAID1C4 | BTRFS_BLOCK_GROUP_RAID5 | BTRFS_BLOCK_GROUP_RAID6 | BTRFS_BLOCK_GROUP_DUP | BTRFS_BLOCK_GROUP_RAID10) 391 #define BTRFS_BLOCK_GROUP_RAID56_MASK (BTRFS_BLOCK_GROUP_RAID5 | BTRFS_BLOCK_GROUP_RAID6) 392 #define BTRFS_BLOCK_GROUP_RAID1_MASK (BTRFS_BLOCK_GROUP_RAID1 | BTRFS_BLOCK_GROUP_RAID1C3 | BTRFS_BLOCK_GROUP_RAID1C4) 393 #define BTRFS_AVAIL_ALLOC_BIT_SINGLE (1ULL << 48) 394 #define BTRFS_SPACE_INFO_GLOBAL_RSV (1ULL << 49) 395 #define BTRFS_EXTENDED_PROFILE_MASK (BTRFS_BLOCK_GROUP_PROFILE_MASK | BTRFS_AVAIL_ALLOC_BIT_SINGLE) 396 struct btrfs_block_group_item { 397 __le64 used; 398 __le64 chunk_objectid; 399 __le64 flags; 400 } __attribute__((__packed__)); 401 struct btrfs_free_space_info { 402 __le32 extent_count; 403 __le32 flags; 404 } __attribute__((__packed__)); 405 #define BTRFS_FREE_SPACE_USING_BITMAPS (1ULL << 0) 406 #define BTRFS_QGROUP_LEVEL_SHIFT 48 407 #define BTRFS_QGROUP_STATUS_FLAG_ON (1ULL << 0) 408 #define BTRFS_QGROUP_STATUS_FLAG_RESCAN (1ULL << 1) 409 #define BTRFS_QGROUP_STATUS_FLAG_INCONSISTENT (1ULL << 2) 410 #define BTRFS_QGROUP_STATUS_VERSION 1 411 struct btrfs_qgroup_status_item { 412 __le64 version; 413 __le64 generation; 414 __le64 flags; 415 __le64 rescan; 416 } __attribute__((__packed__)); 417 struct btrfs_qgroup_info_item { 418 __le64 generation; 419 __le64 rfer; 420 __le64 rfer_cmpr; 421 __le64 excl; 422 __le64 excl_cmpr; 423 } __attribute__((__packed__)); 424 struct btrfs_qgroup_limit_item { 425 __le64 flags; 426 __le64 max_rfer; 427 __le64 max_excl; 428 __le64 rsv_rfer; 429 __le64 rsv_excl; 430 } __attribute__((__packed__)); 431 #endif 432