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 #include <stddef.h> 24 #define BTRFS_ROOT_TREE_OBJECTID 1ULL 25 #define BTRFS_EXTENT_TREE_OBJECTID 2ULL 26 #define BTRFS_CHUNK_TREE_OBJECTID 3ULL 27 #define BTRFS_DEV_TREE_OBJECTID 4ULL 28 #define BTRFS_FS_TREE_OBJECTID 5ULL 29 #define BTRFS_ROOT_TREE_DIR_OBJECTID 6ULL 30 #define BTRFS_CSUM_TREE_OBJECTID 7ULL 31 #define BTRFS_QUOTA_TREE_OBJECTID 8ULL 32 #define BTRFS_UUID_TREE_OBJECTID 9ULL 33 #define BTRFS_FREE_SPACE_TREE_OBJECTID 10ULL 34 #define BTRFS_DEV_STATS_OBJECTID 0ULL 35 #define BTRFS_BALANCE_OBJECTID - 4ULL 36 #define BTRFS_ORPHAN_OBJECTID - 5ULL 37 #define BTRFS_TREE_LOG_OBJECTID - 6ULL 38 #define BTRFS_TREE_LOG_FIXUP_OBJECTID - 7ULL 39 #define BTRFS_TREE_RELOC_OBJECTID - 8ULL 40 #define BTRFS_DATA_RELOC_TREE_OBJECTID - 9ULL 41 #define BTRFS_EXTENT_CSUM_OBJECTID - 10ULL 42 #define BTRFS_FREE_SPACE_OBJECTID - 11ULL 43 #define BTRFS_FREE_INO_OBJECTID - 12ULL 44 #define BTRFS_MULTIPLE_OBJECTIDS - 255ULL 45 #define BTRFS_FIRST_FREE_OBJECTID 256ULL 46 #define BTRFS_LAST_FREE_OBJECTID - 256ULL 47 #define BTRFS_FIRST_CHUNK_TREE_OBJECTID 256ULL 48 #define BTRFS_DEV_ITEMS_OBJECTID 1ULL 49 #define BTRFS_BTREE_INODE_OBJECTID 1 50 #define BTRFS_EMPTY_SUBVOL_DIR_OBJECTID 2 51 #define BTRFS_DEV_REPLACE_DEVID 0ULL 52 #define BTRFS_INODE_ITEM_KEY 1 53 #define BTRFS_INODE_REF_KEY 12 54 #define BTRFS_INODE_EXTREF_KEY 13 55 #define BTRFS_XATTR_ITEM_KEY 24 56 #define BTRFS_VERITY_DESC_ITEM_KEY 36 57 #define BTRFS_VERITY_MERKLE_ITEM_KEY 37 58 #define BTRFS_ORPHAN_ITEM_KEY 48 59 #define BTRFS_DIR_LOG_ITEM_KEY 60 60 #define BTRFS_DIR_LOG_INDEX_KEY 72 61 #define BTRFS_DIR_ITEM_KEY 84 62 #define BTRFS_DIR_INDEX_KEY 96 63 #define BTRFS_EXTENT_DATA_KEY 108 64 #define BTRFS_EXTENT_CSUM_KEY 128 65 #define BTRFS_ROOT_ITEM_KEY 132 66 #define BTRFS_ROOT_BACKREF_KEY 144 67 #define BTRFS_ROOT_REF_KEY 156 68 #define BTRFS_EXTENT_ITEM_KEY 168 69 #define BTRFS_METADATA_ITEM_KEY 169 70 #define BTRFS_TREE_BLOCK_REF_KEY 176 71 #define BTRFS_EXTENT_DATA_REF_KEY 178 72 #define BTRFS_EXTENT_REF_V0_KEY 180 73 #define BTRFS_SHARED_BLOCK_REF_KEY 182 74 #define BTRFS_SHARED_DATA_REF_KEY 184 75 #define BTRFS_BLOCK_GROUP_ITEM_KEY 192 76 #define BTRFS_FREE_SPACE_INFO_KEY 198 77 #define BTRFS_FREE_SPACE_EXTENT_KEY 199 78 #define BTRFS_FREE_SPACE_BITMAP_KEY 200 79 #define BTRFS_DEV_EXTENT_KEY 204 80 #define BTRFS_DEV_ITEM_KEY 216 81 #define BTRFS_CHUNK_ITEM_KEY 228 82 #define BTRFS_QGROUP_STATUS_KEY 240 83 #define BTRFS_QGROUP_INFO_KEY 242 84 #define BTRFS_QGROUP_LIMIT_KEY 244 85 #define BTRFS_QGROUP_RELATION_KEY 246 86 #define BTRFS_BALANCE_ITEM_KEY 248 87 #define BTRFS_TEMPORARY_ITEM_KEY 248 88 #define BTRFS_DEV_STATS_KEY 249 89 #define BTRFS_PERSISTENT_ITEM_KEY 249 90 #define BTRFS_DEV_REPLACE_KEY 250 91 #if BTRFS_UUID_SIZE != 16 92 #error "UUID items require BTRFS_UUID_SIZE == 16!" 93 #endif 94 #define BTRFS_UUID_KEY_SUBVOL 251 95 #define BTRFS_UUID_KEY_RECEIVED_SUBVOL 252 96 #define BTRFS_STRING_ITEM_KEY 253 97 #define BTRFS_MAX_METADATA_BLOCKSIZE 65536 98 #define BTRFS_CSUM_SIZE 32 99 enum btrfs_csum_type { 100 BTRFS_CSUM_TYPE_CRC32 = 0, 101 BTRFS_CSUM_TYPE_XXHASH = 1, 102 BTRFS_CSUM_TYPE_SHA256 = 2, 103 BTRFS_CSUM_TYPE_BLAKE2 = 3, 104 }; 105 #define BTRFS_FT_UNKNOWN 0 106 #define BTRFS_FT_REG_FILE 1 107 #define BTRFS_FT_DIR 2 108 #define BTRFS_FT_CHRDEV 3 109 #define BTRFS_FT_BLKDEV 4 110 #define BTRFS_FT_FIFO 5 111 #define BTRFS_FT_SOCK 6 112 #define BTRFS_FT_SYMLINK 7 113 #define BTRFS_FT_XATTR 8 114 #define BTRFS_FT_MAX 9 115 struct btrfs_disk_key { 116 __le64 objectid; 117 __u8 type; 118 __le64 offset; 119 } __attribute__((__packed__)); 120 struct btrfs_key { 121 __u64 objectid; 122 __u8 type; 123 __u64 offset; 124 } __attribute__((__packed__)); 125 struct btrfs_dev_item { 126 __le64 devid; 127 __le64 total_bytes; 128 __le64 bytes_used; 129 __le32 io_align; 130 __le32 io_width; 131 __le32 sector_size; 132 __le64 type; 133 __le64 generation; 134 __le64 start_offset; 135 __le32 dev_group; 136 __u8 seek_speed; 137 __u8 bandwidth; 138 __u8 uuid[BTRFS_UUID_SIZE]; 139 __u8 fsid[BTRFS_UUID_SIZE]; 140 } __attribute__((__packed__)); 141 struct btrfs_stripe { 142 __le64 devid; 143 __le64 offset; 144 __u8 dev_uuid[BTRFS_UUID_SIZE]; 145 } __attribute__((__packed__)); 146 struct btrfs_chunk { 147 __le64 length; 148 __le64 owner; 149 __le64 stripe_len; 150 __le64 type; 151 __le32 io_align; 152 __le32 io_width; 153 __le32 sector_size; 154 __le16 num_stripes; 155 __le16 sub_stripes; 156 struct btrfs_stripe stripe; 157 } __attribute__((__packed__)); 158 #define BTRFS_FREE_SPACE_EXTENT 1 159 #define BTRFS_FREE_SPACE_BITMAP 2 160 struct btrfs_free_space_entry { 161 __le64 offset; 162 __le64 bytes; 163 __u8 type; 164 } __attribute__((__packed__)); 165 struct btrfs_free_space_header { 166 struct btrfs_disk_key location; 167 __le64 generation; 168 __le64 num_entries; 169 __le64 num_bitmaps; 170 } __attribute__((__packed__)); 171 #define BTRFS_HEADER_FLAG_WRITTEN (1ULL << 0) 172 #define BTRFS_HEADER_FLAG_RELOC (1ULL << 1) 173 #define BTRFS_SUPER_FLAG_ERROR (1ULL << 2) 174 #define BTRFS_SUPER_FLAG_SEEDING (1ULL << 32) 175 #define BTRFS_SUPER_FLAG_METADUMP (1ULL << 33) 176 #define BTRFS_SUPER_FLAG_METADUMP_V2 (1ULL << 34) 177 #define BTRFS_SUPER_FLAG_CHANGING_FSID (1ULL << 35) 178 #define BTRFS_SUPER_FLAG_CHANGING_FSID_V2 (1ULL << 36) 179 struct btrfs_extent_item { 180 __le64 refs; 181 __le64 generation; 182 __le64 flags; 183 } __attribute__((__packed__)); 184 struct btrfs_extent_item_v0 { 185 __le32 refs; 186 } __attribute__((__packed__)); 187 #define BTRFS_EXTENT_FLAG_DATA (1ULL << 0) 188 #define BTRFS_EXTENT_FLAG_TREE_BLOCK (1ULL << 1) 189 #define BTRFS_BLOCK_FLAG_FULL_BACKREF (1ULL << 8) 190 #define BTRFS_EXTENT_FLAG_SUPER (1ULL << 48) 191 struct btrfs_tree_block_info { 192 struct btrfs_disk_key key; 193 __u8 level; 194 } __attribute__((__packed__)); 195 struct btrfs_extent_data_ref { 196 __le64 root; 197 __le64 objectid; 198 __le64 offset; 199 __le32 count; 200 } __attribute__((__packed__)); 201 struct btrfs_shared_data_ref { 202 __le32 count; 203 } __attribute__((__packed__)); 204 struct btrfs_extent_inline_ref { 205 __u8 type; 206 __le64 offset; 207 } __attribute__((__packed__)); 208 struct btrfs_dev_extent { 209 __le64 chunk_tree; 210 __le64 chunk_objectid; 211 __le64 chunk_offset; 212 __le64 length; 213 __u8 chunk_tree_uuid[BTRFS_UUID_SIZE]; 214 } __attribute__((__packed__)); 215 struct btrfs_inode_ref { 216 __le64 index; 217 __le16 name_len; 218 } __attribute__((__packed__)); 219 struct btrfs_inode_extref { 220 __le64 parent_objectid; 221 __le64 index; 222 __le16 name_len; 223 __u8 name[0]; 224 } __attribute__((__packed__)); 225 struct btrfs_timespec { 226 __le64 sec; 227 __le32 nsec; 228 } __attribute__((__packed__)); 229 struct btrfs_inode_item { 230 __le64 generation; 231 __le64 transid; 232 __le64 size; 233 __le64 nbytes; 234 __le64 block_group; 235 __le32 nlink; 236 __le32 uid; 237 __le32 gid; 238 __le32 mode; 239 __le64 rdev; 240 __le64 flags; 241 __le64 sequence; 242 __le64 reserved[4]; 243 struct btrfs_timespec atime; 244 struct btrfs_timespec ctime; 245 struct btrfs_timespec mtime; 246 struct btrfs_timespec otime; 247 } __attribute__((__packed__)); 248 struct btrfs_dir_log_item { 249 __le64 end; 250 } __attribute__((__packed__)); 251 struct btrfs_dir_item { 252 struct btrfs_disk_key location; 253 __le64 transid; 254 __le16 data_len; 255 __le16 name_len; 256 __u8 type; 257 } __attribute__((__packed__)); 258 #define BTRFS_ROOT_SUBVOL_RDONLY (1ULL << 0) 259 #define BTRFS_ROOT_SUBVOL_DEAD (1ULL << 48) 260 struct btrfs_root_item { 261 struct btrfs_inode_item inode; 262 __le64 generation; 263 __le64 root_dirid; 264 __le64 bytenr; 265 __le64 byte_limit; 266 __le64 bytes_used; 267 __le64 last_snapshot; 268 __le64 flags; 269 __le32 refs; 270 struct btrfs_disk_key drop_progress; 271 __u8 drop_level; 272 __u8 level; 273 __le64 generation_v2; 274 __u8 uuid[BTRFS_UUID_SIZE]; 275 __u8 parent_uuid[BTRFS_UUID_SIZE]; 276 __u8 received_uuid[BTRFS_UUID_SIZE]; 277 __le64 ctransid; 278 __le64 otransid; 279 __le64 stransid; 280 __le64 rtransid; 281 struct btrfs_timespec ctime; 282 struct btrfs_timespec otime; 283 struct btrfs_timespec stime; 284 struct btrfs_timespec rtime; 285 __le64 reserved[8]; 286 } __attribute__((__packed__)); 287 struct btrfs_root_ref { 288 __le64 dirid; 289 __le64 sequence; 290 __le16 name_len; 291 } __attribute__((__packed__)); 292 struct btrfs_disk_balance_args { 293 __le64 profiles; 294 union { 295 __le64 usage; 296 struct { 297 __le32 usage_min; 298 __le32 usage_max; 299 }; 300 }; 301 __le64 devid; 302 __le64 pstart; 303 __le64 pend; 304 __le64 vstart; 305 __le64 vend; 306 __le64 target; 307 __le64 flags; 308 union { 309 __le64 limit; 310 struct { 311 __le32 limit_min; 312 __le32 limit_max; 313 }; 314 }; 315 __le32 stripes_min; 316 __le32 stripes_max; 317 __le64 unused[6]; 318 } __attribute__((__packed__)); 319 struct btrfs_balance_item { 320 __le64 flags; 321 struct btrfs_disk_balance_args data; 322 struct btrfs_disk_balance_args meta; 323 struct btrfs_disk_balance_args sys; 324 __le64 unused[4]; 325 } __attribute__((__packed__)); 326 enum { 327 BTRFS_FILE_EXTENT_INLINE = 0, 328 BTRFS_FILE_EXTENT_REG = 1, 329 BTRFS_FILE_EXTENT_PREALLOC = 2, 330 BTRFS_NR_FILE_EXTENT_TYPES = 3, 331 }; 332 struct btrfs_file_extent_item { 333 __le64 generation; 334 __le64 ram_bytes; 335 __u8 compression; 336 __u8 encryption; 337 __le16 other_encoding; 338 __u8 type; 339 __le64 disk_bytenr; 340 __le64 disk_num_bytes; 341 __le64 offset; 342 __le64 num_bytes; 343 } __attribute__((__packed__)); 344 struct btrfs_csum_item { 345 __u8 csum; 346 } __attribute__((__packed__)); 347 struct btrfs_dev_stats_item { 348 __le64 values[BTRFS_DEV_STAT_VALUES_MAX]; 349 } __attribute__((__packed__)); 350 #define BTRFS_DEV_REPLACE_ITEM_CONT_READING_FROM_SRCDEV_MODE_ALWAYS 0 351 #define BTRFS_DEV_REPLACE_ITEM_CONT_READING_FROM_SRCDEV_MODE_AVOID 1 352 struct btrfs_dev_replace_item { 353 __le64 src_devid; 354 __le64 cursor_left; 355 __le64 cursor_right; 356 __le64 cont_reading_from_srcdev_mode; 357 __le64 replace_state; 358 __le64 time_started; 359 __le64 time_stopped; 360 __le64 num_write_errors; 361 __le64 num_uncorrectable_read_errors; 362 } __attribute__((__packed__)); 363 #define BTRFS_BLOCK_GROUP_DATA (1ULL << 0) 364 #define BTRFS_BLOCK_GROUP_SYSTEM (1ULL << 1) 365 #define BTRFS_BLOCK_GROUP_METADATA (1ULL << 2) 366 #define BTRFS_BLOCK_GROUP_RAID0 (1ULL << 3) 367 #define BTRFS_BLOCK_GROUP_RAID1 (1ULL << 4) 368 #define BTRFS_BLOCK_GROUP_DUP (1ULL << 5) 369 #define BTRFS_BLOCK_GROUP_RAID10 (1ULL << 6) 370 #define BTRFS_BLOCK_GROUP_RAID5 (1ULL << 7) 371 #define BTRFS_BLOCK_GROUP_RAID6 (1ULL << 8) 372 #define BTRFS_BLOCK_GROUP_RAID1C3 (1ULL << 9) 373 #define BTRFS_BLOCK_GROUP_RAID1C4 (1ULL << 10) 374 #define BTRFS_BLOCK_GROUP_RESERVED (BTRFS_AVAIL_ALLOC_BIT_SINGLE | BTRFS_SPACE_INFO_GLOBAL_RSV) 375 enum btrfs_raid_types { 376 BTRFS_RAID_RAID10, 377 BTRFS_RAID_RAID1, 378 BTRFS_RAID_DUP, 379 BTRFS_RAID_RAID0, 380 BTRFS_RAID_SINGLE, 381 BTRFS_RAID_RAID5, 382 BTRFS_RAID_RAID6, 383 BTRFS_RAID_RAID1C3, 384 BTRFS_RAID_RAID1C4, 385 BTRFS_NR_RAID_TYPES 386 }; 387 #define BTRFS_BLOCK_GROUP_TYPE_MASK (BTRFS_BLOCK_GROUP_DATA | BTRFS_BLOCK_GROUP_SYSTEM | BTRFS_BLOCK_GROUP_METADATA) 388 #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) 389 #define BTRFS_BLOCK_GROUP_RAID56_MASK (BTRFS_BLOCK_GROUP_RAID5 | BTRFS_BLOCK_GROUP_RAID6) 390 #define BTRFS_BLOCK_GROUP_RAID1_MASK (BTRFS_BLOCK_GROUP_RAID1 | BTRFS_BLOCK_GROUP_RAID1C3 | BTRFS_BLOCK_GROUP_RAID1C4) 391 #define BTRFS_AVAIL_ALLOC_BIT_SINGLE (1ULL << 48) 392 #define BTRFS_SPACE_INFO_GLOBAL_RSV (1ULL << 49) 393 #define BTRFS_EXTENDED_PROFILE_MASK (BTRFS_BLOCK_GROUP_PROFILE_MASK | BTRFS_AVAIL_ALLOC_BIT_SINGLE) 394 struct btrfs_block_group_item { 395 __le64 used; 396 __le64 chunk_objectid; 397 __le64 flags; 398 } __attribute__((__packed__)); 399 struct btrfs_free_space_info { 400 __le32 extent_count; 401 __le32 flags; 402 } __attribute__((__packed__)); 403 #define BTRFS_FREE_SPACE_USING_BITMAPS (1ULL << 0) 404 #define BTRFS_QGROUP_LEVEL_SHIFT 48 405 #define BTRFS_QGROUP_STATUS_FLAG_ON (1ULL << 0) 406 #define BTRFS_QGROUP_STATUS_FLAG_RESCAN (1ULL << 1) 407 #define BTRFS_QGROUP_STATUS_FLAG_INCONSISTENT (1ULL << 2) 408 #define BTRFS_QGROUP_STATUS_VERSION 1 409 struct btrfs_qgroup_status_item { 410 __le64 version; 411 __le64 generation; 412 __le64 flags; 413 __le64 rescan; 414 } __attribute__((__packed__)); 415 struct btrfs_qgroup_info_item { 416 __le64 generation; 417 __le64 rfer; 418 __le64 rfer_cmpr; 419 __le64 excl; 420 __le64 excl_cmpr; 421 } __attribute__((__packed__)); 422 struct btrfs_qgroup_limit_item { 423 __le64 flags; 424 __le64 max_rfer; 425 __le64 max_excl; 426 __le64 rsv_rfer; 427 __le64 rsv_excl; 428 } __attribute__((__packed__)); 429 struct btrfs_verity_descriptor_item { 430 __le64 size; 431 __le64 reserved[2]; 432 __u8 encryption; 433 } __attribute__((__packed__)); 434 #endif 435