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