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