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btrfs-progs: check: Move link_inode_to_lostfound function to common.c
[btrfs-progs-unstable/devel.git] / print-tree.c
blob5f37ef3efe339a0ec86c5918ece7cdf17c37ac03
1 /*
2 * Copyright (C) 2007 Oracle. All rights reserved.
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public
6 * License v2 as published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 * General Public License for more details.
12 *
13 * You should have received a copy of the GNU General Public
14 * License along with this program; if not, write to the
15 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
16 * Boston, MA 021110-1307, USA.
17 */
18
19 #include <stdio.h>
20 #include <stdlib.h>
21 #include <uuid/uuid.h>
22 #include "kerncompat.h"
23 #include "radix-tree.h"
24 #include "ctree.h"
25 #include "disk-io.h"
26 #include "print-tree.h"
27 #include "utils.h"
28
29
30 static void print_dir_item_type(struct extent_buffer *eb,
31 struct btrfs_dir_item *di)
32 {
33 u8 type = btrfs_dir_type(eb, di);
34 static const char* dir_item_str[] = {
35 [BTRFS_FT_REG_FILE] = "FILE",
36 [BTRFS_FT_DIR] = "DIR",
37 [BTRFS_FT_CHRDEV] = "CHRDEV",
38 [BTRFS_FT_BLKDEV] = "BLKDEV",
39 [BTRFS_FT_FIFO] = "FIFO",
40 [BTRFS_FT_SOCK] = "SOCK",
41 [BTRFS_FT_SYMLINK] = "SYMLINK",
42 [BTRFS_FT_XATTR] = "XATTR"
43 };
44
45 if (type < ARRAY_SIZE(dir_item_str) && dir_item_str[type])
46 printf("%s", dir_item_str[type]);
47 else
48 printf("DIR_ITEM.%u", type);
49 }
50
51 static void print_dir_item(struct extent_buffer *eb, u32 size,
52 struct btrfs_dir_item *di)
53 {
54 u32 cur = 0;
55 u32 len;
56 u32 name_len;
57 u32 data_len;
58 char namebuf[BTRFS_NAME_LEN];
59 struct btrfs_disk_key location;
60
61 while (cur < size) {
62 btrfs_dir_item_key(eb, di, &location);
63 printf("\t\tlocation ");
64 btrfs_print_key(&location);
65 printf(" type ");
66 print_dir_item_type(eb, di);
67 printf("\n");
68 name_len = btrfs_dir_name_len(eb, di);
69 data_len = btrfs_dir_data_len(eb, di);
70 len = (name_len <= sizeof(namebuf))? name_len: sizeof(namebuf);
71 read_extent_buffer(eb, namebuf, (unsigned long)(di + 1), len);
72 printf("\t\ttransid %llu data_len %u name_len %u\n",
73 btrfs_dir_transid(eb, di),
74 data_len, name_len);
75 printf("\t\tname: %.*s\n", len, namebuf);
76 if (data_len) {
77 len = (data_len <= sizeof(namebuf))? data_len: sizeof(namebuf);
78 read_extent_buffer(eb, namebuf,
79 (unsigned long)(di + 1) + name_len, len);
80 printf("\t\tdata %.*s\n", len, namebuf);
81 }
82 len = sizeof(*di) + name_len + data_len;
83 di = (struct btrfs_dir_item *)((char *)di + len);
84 cur += len;
85 }
86 }
87
88 static void print_inode_extref_item(struct extent_buffer *eb, u32 size,
89 struct btrfs_inode_extref *extref)
90 {
91 u32 cur = 0;
92 u32 len;
93 u32 name_len = 0;
94 u64 index = 0;
95 u64 parent_objid;
96 char namebuf[BTRFS_NAME_LEN];
97
98 while (cur < size) {
99 index = btrfs_inode_extref_index(eb, extref);
100 name_len = btrfs_inode_extref_name_len(eb, extref);
101 parent_objid = btrfs_inode_extref_parent(eb, extref);
102
103 len = (name_len <= sizeof(namebuf))? name_len: sizeof(namebuf);
104
105 read_extent_buffer(eb, namebuf, (unsigned long)(extref->name), len);
106
107 printf("\t\tindex %llu parent %llu namelen %u name: %.*s\n",
108 (unsigned long long)index,
109 (unsigned long long)parent_objid,
110 name_len, len, namebuf);
111
112 len = sizeof(*extref) + name_len;
113 extref = (struct btrfs_inode_extref *)((char *)extref + len);
114 cur += len;
115 }
116 }
117
118 static void print_inode_ref_item(struct extent_buffer *eb, u32 size,
119 struct btrfs_inode_ref *ref)
120 {
121 u32 cur = 0;
122 u32 len;
123 u32 name_len;
124 u64 index;
125 char namebuf[BTRFS_NAME_LEN];
126
127 while (cur < size) {
128 name_len = btrfs_inode_ref_name_len(eb, ref);
129 index = btrfs_inode_ref_index(eb, ref);
130 len = (name_len <= sizeof(namebuf))? name_len: sizeof(namebuf);
131 read_extent_buffer(eb, namebuf, (unsigned long)(ref + 1), len);
132 printf("\t\tindex %llu namelen %u name: %.*s\n",
133 (unsigned long long)index, name_len, len, namebuf);
134 len = sizeof(*ref) + name_len;
135 ref = (struct btrfs_inode_ref *)((char *)ref + len);
136 cur += len;
137 }
138 }
139
140 /* Caller should ensure sizeof(*ret)>=21 "DATA|METADATA|RAID10" */
141 static void bg_flags_to_str(u64 flags, char *ret)
142 {
143 int empty = 1;
144
145 if (flags & BTRFS_BLOCK_GROUP_DATA) {
146 empty = 0;
147 strcpy(ret, "DATA");
148 }
149 if (flags & BTRFS_BLOCK_GROUP_METADATA) {
150 if (!empty)
151 strcat(ret, "|");
152 strcat(ret, "METADATA");
153 }
154 if (flags & BTRFS_BLOCK_GROUP_SYSTEM) {
155 if (!empty)
156 strcat(ret, "|");
157 strcat(ret, "SYSTEM");
158 }
159 switch (flags & BTRFS_BLOCK_GROUP_PROFILE_MASK) {
160 case BTRFS_BLOCK_GROUP_RAID0:
161 strcat(ret, "|RAID0");
162 break;
163 case BTRFS_BLOCK_GROUP_RAID1:
164 strcat(ret, "|RAID1");
165 break;
166 case BTRFS_BLOCK_GROUP_DUP:
167 strcat(ret, "|DUP");
168 break;
169 case BTRFS_BLOCK_GROUP_RAID10:
170 strcat(ret, "|RAID10");
171 break;
172 case BTRFS_BLOCK_GROUP_RAID5:
173 strcat(ret, "|RAID5");
174 break;
175 case BTRFS_BLOCK_GROUP_RAID6:
176 strcat(ret, "|RAID6");
177 break;
178 default:
179 break;
180 }
181 }
182
183 /* Caller should ensure sizeof(*ret)>= 26 "OFF|SCANNING|INCONSISTENT" */
184 static void qgroup_flags_to_str(u64 flags, char *ret)
185 {
186 if (flags & BTRFS_QGROUP_STATUS_FLAG_ON)
187 strcpy(ret, "ON");
188 else
189 strcpy(ret, "OFF");
190
191 if (flags & BTRFS_QGROUP_STATUS_FLAG_RESCAN)
192 strcat(ret, "|SCANNING");
193 if (flags & BTRFS_QGROUP_STATUS_FLAG_INCONSISTENT)
194 strcat(ret, "|INCONSISTENT");
195 }
196
197 void print_chunk_item(struct extent_buffer *eb, struct btrfs_chunk *chunk)
198 {
199 u16 num_stripes = btrfs_chunk_num_stripes(eb, chunk);
200 int i;
201 u32 chunk_item_size;
202 char chunk_flags_str[32] = {0};
203
204 /* The chunk must contain at least one stripe */
205 if (num_stripes < 1) {
206 printf("invalid num_stripes: %u\n", num_stripes);
207 return;
208 }
209
210 chunk_item_size = btrfs_chunk_item_size(num_stripes);
211
212 if ((unsigned long)chunk + chunk_item_size > eb->len) {
213 printf("\t\tchunk item invalid\n");
214 return;
215 }
216
217 bg_flags_to_str(btrfs_chunk_type(eb, chunk), chunk_flags_str);
218 printf("\t\tlength %llu owner %llu stripe_len %llu type %s\n",
219 (unsigned long long)btrfs_chunk_length(eb, chunk),
220 (unsigned long long)btrfs_chunk_owner(eb, chunk),
221 (unsigned long long)btrfs_chunk_stripe_len(eb, chunk),
222 chunk_flags_str);
223 printf("\t\tio_align %u io_width %u sector_size %u\n",
224 btrfs_chunk_io_align(eb, chunk),
225 btrfs_chunk_io_width(eb, chunk),
226 btrfs_chunk_sector_size(eb, chunk));
227 printf("\t\tnum_stripes %hu sub_stripes %hu\n", num_stripes,
228 btrfs_chunk_sub_stripes(eb, chunk));
229 for (i = 0 ; i < num_stripes ; i++) {
230 unsigned char dev_uuid[BTRFS_UUID_SIZE];
231 char str_dev_uuid[BTRFS_UUID_UNPARSED_SIZE];
232 u64 uuid_offset;
233 u64 stripe_offset;
234
235 uuid_offset = (unsigned long)btrfs_stripe_dev_uuid_nr(chunk, i);
236 stripe_offset = (unsigned long)btrfs_stripe_nr(chunk, i);
237
238 if (uuid_offset < stripe_offset ||
239 (uuid_offset + BTRFS_UUID_SIZE) >
240 (stripe_offset + sizeof(struct btrfs_stripe))) {
241 printf("\t\t\tstripe %d invalid\n", i);
242 break;
243 }
244
245 read_extent_buffer(eb, dev_uuid,
246 uuid_offset,
247 BTRFS_UUID_SIZE);
248 uuid_unparse(dev_uuid, str_dev_uuid);
249 printf("\t\t\tstripe %d devid %llu offset %llu\n", i,
250 (unsigned long long)btrfs_stripe_devid_nr(eb, chunk, i),
251 (unsigned long long)btrfs_stripe_offset_nr(eb, chunk, i));
252 printf("\t\t\tdev_uuid %s\n", str_dev_uuid);
253 }
254 }
255
256 static void print_dev_item(struct extent_buffer *eb,
257 struct btrfs_dev_item *dev_item)
258 {
259 char uuid_str[BTRFS_UUID_UNPARSED_SIZE];
260 char fsid_str[BTRFS_UUID_UNPARSED_SIZE];
261 u8 uuid[BTRFS_UUID_SIZE];
262 u8 fsid[BTRFS_UUID_SIZE];
263
264 read_extent_buffer(eb, uuid,
265 (unsigned long)btrfs_device_uuid(dev_item),
266 BTRFS_UUID_SIZE);
267 uuid_unparse(uuid, uuid_str);
268 read_extent_buffer(eb, fsid,
269 (unsigned long)btrfs_device_fsid(dev_item),
270 BTRFS_UUID_SIZE);
271 uuid_unparse(fsid, fsid_str);
272 printf("\t\tdevid %llu total_bytes %llu bytes_used %Lu\n"
273 "\t\tio_align %u io_width %u sector_size %u type %llu\n"
274 "\t\tgeneration %llu start_offset %llu dev_group %u\n"
275 "\t\tseek_speed %hhu bandwidth %hhu\n"
276 "\t\tuuid %s\n"
277 "\t\tfsid %s\n",
278 (unsigned long long)btrfs_device_id(eb, dev_item),
279 (unsigned long long)btrfs_device_total_bytes(eb, dev_item),
280 (unsigned long long)btrfs_device_bytes_used(eb, dev_item),
281 btrfs_device_io_align(eb, dev_item),
282 btrfs_device_io_width(eb, dev_item),
283 btrfs_device_sector_size(eb, dev_item),
284 (unsigned long long)btrfs_device_type(eb, dev_item),
285 (unsigned long long)btrfs_device_generation(eb, dev_item),
286 (unsigned long long)btrfs_device_start_offset(eb, dev_item),
287 btrfs_device_group(eb, dev_item),
288 btrfs_device_seek_speed(eb, dev_item),
289 btrfs_device_bandwidth(eb, dev_item),
290 uuid_str, fsid_str);
291 }
292
293 static void print_uuids(struct extent_buffer *eb)
294 {
295 char fs_uuid[BTRFS_UUID_UNPARSED_SIZE];
296 char chunk_uuid[BTRFS_UUID_UNPARSED_SIZE];
297 u8 disk_uuid[BTRFS_UUID_SIZE];
298
299 read_extent_buffer(eb, disk_uuid, btrfs_header_fsid(),
300 BTRFS_FSID_SIZE);
301
302 fs_uuid[BTRFS_UUID_UNPARSED_SIZE - 1] = '\0';
303 uuid_unparse(disk_uuid, fs_uuid);
304
305 read_extent_buffer(eb, disk_uuid,
306 btrfs_header_chunk_tree_uuid(eb),
307 BTRFS_UUID_SIZE);
308
309 chunk_uuid[BTRFS_UUID_UNPARSED_SIZE - 1] = '\0';
310 uuid_unparse(disk_uuid, chunk_uuid);
311 printf("fs uuid %s\nchunk uuid %s\n", fs_uuid, chunk_uuid);
312 }
313
314 static void compress_type_to_str(u8 compress_type, char *ret)
315 {
316 switch (compress_type) {
317 case BTRFS_COMPRESS_NONE:
318 strcpy(ret, "none");
319 break;
320 case BTRFS_COMPRESS_ZLIB:
321 strcpy(ret, "zlib");
322 break;
323 case BTRFS_COMPRESS_LZO:
324 strcpy(ret, "lzo");
325 break;
326 case BTRFS_COMPRESS_ZSTD:
327 strcpy(ret, "zstd");
328 break;
329 default:
330 sprintf(ret, "UNKNOWN.%d", compress_type);
331 }
332 }
333
334 static const char* file_extent_type_to_str(u8 type)
335 {
336 switch (type) {
337 case BTRFS_FILE_EXTENT_INLINE: return "inline";
338 case BTRFS_FILE_EXTENT_PREALLOC: return "prealloc";
339 case BTRFS_FILE_EXTENT_REG: return "regular";
340 default: return "unknown";
341 }
342 }
343
344 static void print_file_extent_item(struct extent_buffer *eb,
345 struct btrfs_item *item,
346 int slot,
347 struct btrfs_file_extent_item *fi)
348 {
349 unsigned char extent_type = btrfs_file_extent_type(eb, fi);
350 char compress_str[16];
351
352 compress_type_to_str(btrfs_file_extent_compression(eb, fi),
353 compress_str);
354
355 printf("\t\tgeneration %llu type %hhu (%s)\n",
356 btrfs_file_extent_generation(eb, fi),
357 extent_type, file_extent_type_to_str(extent_type));
358
359 if (extent_type == BTRFS_FILE_EXTENT_INLINE) {
360 printf("\t\tinline extent data size %u ram_bytes %u compression %hhu (%s)\n",
361 btrfs_file_extent_inline_item_len(eb, item),
362 btrfs_file_extent_inline_len(eb, slot, fi),
363 btrfs_file_extent_compression(eb, fi),
364 compress_str);
365 return;
366 }
367 if (extent_type == BTRFS_FILE_EXTENT_PREALLOC) {
368 printf("\t\tprealloc data disk byte %llu nr %llu\n",
369 (unsigned long long)btrfs_file_extent_disk_bytenr(eb, fi),
370 (unsigned long long)btrfs_file_extent_disk_num_bytes(eb, fi));
371 printf("\t\tprealloc data offset %llu nr %llu\n",
372 (unsigned long long)btrfs_file_extent_offset(eb, fi),
373 (unsigned long long)btrfs_file_extent_num_bytes(eb, fi));
374 return;
375 }
376 printf("\t\textent data disk byte %llu nr %llu\n",
377 (unsigned long long)btrfs_file_extent_disk_bytenr(eb, fi),
378 (unsigned long long)btrfs_file_extent_disk_num_bytes(eb, fi));
379 printf("\t\textent data offset %llu nr %llu ram %llu\n",
380 (unsigned long long)btrfs_file_extent_offset(eb, fi),
381 (unsigned long long)btrfs_file_extent_num_bytes(eb, fi),
382 (unsigned long long)btrfs_file_extent_ram_bytes(eb, fi));
383 printf("\t\textent compression %hhu (%s)\n",
384 btrfs_file_extent_compression(eb, fi),
385 compress_str);
386 }
387
388 /* Caller should ensure sizeof(*ret) >= 16("DATA|TREE_BLOCK") */
389 static void extent_flags_to_str(u64 flags, char *ret)
390 {
391 int empty = 1;
392
393 if (flags & BTRFS_EXTENT_FLAG_DATA) {
394 empty = 0;
395 strcpy(ret, "DATA");
396 }
397 if (flags & BTRFS_EXTENT_FLAG_TREE_BLOCK) {
398 if (!empty) {
399 empty = 0;
400 strcat(ret, "|");
401 }
402 strcat(ret, "TREE_BLOCK");
403 }
404 if (flags & BTRFS_BLOCK_FLAG_FULL_BACKREF) {
405 strcat(ret, "|");
406 strcat(ret, "FULL_BACKREF");
407 }
408 }
409
410 void print_extent_item(struct extent_buffer *eb, int slot, int metadata)
411 {
412 struct btrfs_extent_item *ei;
413 struct btrfs_extent_inline_ref *iref;
414 struct btrfs_extent_data_ref *dref;
415 struct btrfs_shared_data_ref *sref;
416 struct btrfs_disk_key key;
417 unsigned long end;
418 unsigned long ptr;
419 int type;
420 u32 item_size = btrfs_item_size_nr(eb, slot);
421 u64 flags;
422 u64 offset;
423 char flags_str[32] = {0};
424
425 if (item_size < sizeof(*ei)) {
426 #ifdef BTRFS_COMPAT_EXTENT_TREE_V0
427 struct btrfs_extent_item_v0 *ei0;
428 BUG_ON(item_size != sizeof(*ei0));
429 ei0 = btrfs_item_ptr(eb, slot, struct btrfs_extent_item_v0);
430 printf("\t\trefs %u\n",
431 btrfs_extent_refs_v0(eb, ei0));
432 return;
433 #else
434 BUG();
435 #endif
436 }
437
438 ei = btrfs_item_ptr(eb, slot, struct btrfs_extent_item);
439 flags = btrfs_extent_flags(eb, ei);
440 extent_flags_to_str(flags, flags_str);
441
442 printf("\t\trefs %llu gen %llu flags %s\n",
443 (unsigned long long)btrfs_extent_refs(eb, ei),
444 (unsigned long long)btrfs_extent_generation(eb, ei),
445 flags_str);
446
447 if (flags & BTRFS_EXTENT_FLAG_TREE_BLOCK && !metadata) {
448 struct btrfs_tree_block_info *info;
449 info = (struct btrfs_tree_block_info *)(ei + 1);
450 btrfs_tree_block_key(eb, info, &key);
451 printf("\t\ttree block ");
452 btrfs_print_key(&key);
453 printf(" level %d\n", btrfs_tree_block_level(eb, info));
454 iref = (struct btrfs_extent_inline_ref *)(info + 1);
455 } else if (metadata) {
456 struct btrfs_key tmp;
457
458 btrfs_item_key_to_cpu(eb, &tmp, slot);
459 printf("\t\ttree block skinny level %d\n", (int)tmp.offset);
460 iref = (struct btrfs_extent_inline_ref *)(ei + 1);
461 } else{
462 iref = (struct btrfs_extent_inline_ref *)(ei + 1);
463 }
464
465 ptr = (unsigned long)iref;
466 end = (unsigned long)ei + item_size;
467 while (ptr < end) {
468 iref = (struct btrfs_extent_inline_ref *)ptr;
469 type = btrfs_extent_inline_ref_type(eb, iref);
470 offset = btrfs_extent_inline_ref_offset(eb, iref);
471 switch (type) {
472 case BTRFS_TREE_BLOCK_REF_KEY:
473 printf("\t\ttree block backref root %llu\n",
474 (unsigned long long)offset);
475 break;
476 case BTRFS_SHARED_BLOCK_REF_KEY:
477 printf("\t\tshared block backref parent %llu\n",
478 (unsigned long long)offset);
479 break;
480 case BTRFS_EXTENT_DATA_REF_KEY:
481 dref = (struct btrfs_extent_data_ref *)(&iref->offset);
482 printf("\t\textent data backref root %llu "
483 "objectid %llu offset %llu count %u\n",
484 (unsigned long long)btrfs_extent_data_ref_root(eb, dref),
485 (unsigned long long)btrfs_extent_data_ref_objectid(eb, dref),
486 (unsigned long long)btrfs_extent_data_ref_offset(eb, dref),
487 btrfs_extent_data_ref_count(eb, dref));
488 break;
489 case BTRFS_SHARED_DATA_REF_KEY:
490 sref = (struct btrfs_shared_data_ref *)(iref + 1);
491 printf("\t\tshared data backref parent %llu count %u\n",
492 (unsigned long long)offset,
493 btrfs_shared_data_ref_count(eb, sref));
494 break;
495 default:
496 return;
497 }
498 ptr += btrfs_extent_inline_ref_size(type);
499 }
500 WARN_ON(ptr > end);
501 }
502
503 #ifdef BTRFS_COMPAT_EXTENT_TREE_V0
504 static void print_extent_ref_v0(struct extent_buffer *eb, int slot)
505 {
506 struct btrfs_extent_ref_v0 *ref0;
507
508 ref0 = btrfs_item_ptr(eb, slot, struct btrfs_extent_ref_v0);
509 printf("\t\textent back ref root %llu gen %llu "
510 "owner %llu num_refs %lu\n",
511 (unsigned long long)btrfs_ref_root_v0(eb, ref0),
512 (unsigned long long)btrfs_ref_generation_v0(eb, ref0),
513 (unsigned long long)btrfs_ref_objectid_v0(eb, ref0),
514 (unsigned long)btrfs_ref_count_v0(eb, ref0));
515 }
516 #endif
517
518 static void print_root_ref(struct extent_buffer *leaf, int slot, const char *tag)
519 {
520 struct btrfs_root_ref *ref;
521 char namebuf[BTRFS_NAME_LEN];
522 int namelen;
523
524 ref = btrfs_item_ptr(leaf, slot, struct btrfs_root_ref);
525 namelen = btrfs_root_ref_name_len(leaf, ref);
526 read_extent_buffer(leaf, namebuf, (unsigned long)(ref + 1), namelen);
527 printf("\t\troot %s key dirid %llu sequence %llu name %.*s\n", tag,
528 (unsigned long long)btrfs_root_ref_dirid(leaf, ref),
529 (unsigned long long)btrfs_root_ref_sequence(leaf, ref),
530 namelen, namebuf);
531 }
532
533 static int empty_uuid(const u8 *uuid)
534 {
535 int i;
536
537 for (i = 0; i < BTRFS_UUID_SIZE; i++)
538 if (uuid[i])
539 return 0;
540 return 1;
541 }
542
543 /*
544 * Caller must ensure sizeof(*ret) >= 7 "RDONLY"
545 */
546 static void root_flags_to_str(u64 flags, char *ret)
547 {
548 if (flags & BTRFS_ROOT_SUBVOL_RDONLY)
549 strcat(ret, "RDONLY");
550 else
551 strcat(ret, "none");
552 }
553
554 static void print_timespec(struct extent_buffer *eb,
555 struct btrfs_timespec *timespec, const char *prefix,
556 const char *suffix)
557 {
558 struct tm tm;
559 u64 tmp_u64;
560 u32 tmp_u32;
561 time_t tmp_time;
562 char timestamp[256];
563
564 tmp_u64 = btrfs_timespec_sec(eb, timespec);
565 tmp_u32 = btrfs_timespec_nsec(eb, timespec);
566 tmp_time = tmp_u64;
567 localtime_r(&tmp_time, &tm);
568 strftime(timestamp, sizeof(timestamp),
569 "%Y-%m-%d %H:%M:%S", &tm);
570 printf("%s%llu.%u (%s)%s", prefix, (unsigned long long)tmp_u64, tmp_u32,
571 timestamp, suffix);
572 }
573
574 static void print_root_item(struct extent_buffer *leaf, int slot)
575 {
576 struct btrfs_root_item *ri;
577 struct btrfs_root_item root_item;
578 int len;
579 char uuid_str[BTRFS_UUID_UNPARSED_SIZE];
580 char flags_str[32] = {0};
581 struct btrfs_key drop_key;
582
583 ri = btrfs_item_ptr(leaf, slot, struct btrfs_root_item);
584 len = btrfs_item_size_nr(leaf, slot);
585
586 memset(&root_item, 0, sizeof(root_item));
587 read_extent_buffer(leaf, &root_item, (unsigned long)ri, len);
588 root_flags_to_str(btrfs_root_flags(&root_item), flags_str);
589
590 printf("\t\tgeneration %llu root_dirid %llu bytenr %llu level %hhu refs %u\n",
591 (unsigned long long)btrfs_root_generation(&root_item),
592 (unsigned long long)btrfs_root_dirid(&root_item),
593 (unsigned long long)btrfs_root_bytenr(&root_item),
594 btrfs_root_level(&root_item),
595 btrfs_root_refs(&root_item));
596 printf("\t\tlastsnap %llu byte_limit %llu bytes_used %llu flags 0x%llx(%s)\n",
597 (unsigned long long)btrfs_root_last_snapshot(&root_item),
598 (unsigned long long)btrfs_root_limit(&root_item),
599 (unsigned long long)btrfs_root_used(&root_item),
600 (unsigned long long)btrfs_root_flags(&root_item),
601 flags_str);
602
603 if (root_item.generation == root_item.generation_v2) {
604 uuid_unparse(root_item.uuid, uuid_str);
605 printf("\t\tuuid %s\n", uuid_str);
606 if (!empty_uuid(root_item.parent_uuid)) {
607 uuid_unparse(root_item.parent_uuid, uuid_str);
608 printf("\t\tparent_uuid %s\n", uuid_str);
609 }
610 if (!empty_uuid(root_item.received_uuid)) {
611 uuid_unparse(root_item.received_uuid, uuid_str);
612 printf("\t\treceived_uuid %s\n", uuid_str);
613 }
614 if (root_item.ctransid) {
615 printf("\t\tctransid %llu otransid %llu stransid %llu rtransid %llu\n",
616 btrfs_root_ctransid(&root_item),
617 btrfs_root_otransid(&root_item),
618 btrfs_root_stransid(&root_item),
619 btrfs_root_rtransid(&root_item));
620 }
621 if (btrfs_timespec_sec(leaf, btrfs_root_ctime(ri)))
622 print_timespec(leaf, btrfs_root_ctime(ri),
623 "\t\tctime ", "\n");
624 if (btrfs_timespec_sec(leaf, btrfs_root_otime(ri)))
625 print_timespec(leaf, btrfs_root_otime(ri),
626 "\t\totime ", "\n");
627 if (btrfs_timespec_sec(leaf, btrfs_root_stime(ri)))
628 print_timespec(leaf, btrfs_root_stime(ri),
629 "\t\tstime ", "\n");
630 if (btrfs_timespec_sec(leaf, btrfs_root_rtime(ri)))
631 print_timespec(leaf, btrfs_root_rtime(ri),
632 "\t\trtime ", "\n");
633 }
634
635 btrfs_disk_key_to_cpu(&drop_key, &root_item.drop_progress);
636 printf("\t\tdrop ");
637 btrfs_print_key(&root_item.drop_progress);
638 printf(" level %hhu\n", root_item.drop_level);
639 }
640
641 static void print_free_space_header(struct extent_buffer *leaf, int slot)
642 {
643 struct btrfs_free_space_header *header;
644 struct btrfs_disk_key location;
645
646 header = btrfs_item_ptr(leaf, slot, struct btrfs_free_space_header);
647 btrfs_free_space_key(leaf, header, &location);
648 printf("\t\tlocation ");
649 btrfs_print_key(&location);
650 printf("\n");
651 printf("\t\tcache generation %llu entries %llu bitmaps %llu\n",
652 (unsigned long long)btrfs_free_space_generation(leaf, header),
653 (unsigned long long)btrfs_free_space_entries(leaf, header),
654 (unsigned long long)btrfs_free_space_bitmaps(leaf, header));
655 }
656
657 void print_key_type(FILE *stream, u64 objectid, u8 type)
658 {
659 static const char* key_to_str[256] = {
660 [BTRFS_INODE_ITEM_KEY] = "INODE_ITEM",
661 [BTRFS_INODE_REF_KEY] = "INODE_REF",
662 [BTRFS_INODE_EXTREF_KEY] = "INODE_EXTREF",
663 [BTRFS_DIR_ITEM_KEY] = "DIR_ITEM",
664 [BTRFS_DIR_INDEX_KEY] = "DIR_INDEX",
665 [BTRFS_DIR_LOG_ITEM_KEY] = "DIR_LOG_ITEM",
666 [BTRFS_DIR_LOG_INDEX_KEY] = "DIR_LOG_INDEX",
667 [BTRFS_XATTR_ITEM_KEY] = "XATTR_ITEM",
668 [BTRFS_ORPHAN_ITEM_KEY] = "ORPHAN_ITEM",
669 [BTRFS_ROOT_ITEM_KEY] = "ROOT_ITEM",
670 [BTRFS_ROOT_REF_KEY] = "ROOT_REF",
671 [BTRFS_ROOT_BACKREF_KEY] = "ROOT_BACKREF",
672 [BTRFS_EXTENT_ITEM_KEY] = "EXTENT_ITEM",
673 [BTRFS_METADATA_ITEM_KEY] = "METADATA_ITEM",
674 [BTRFS_TREE_BLOCK_REF_KEY] = "TREE_BLOCK_REF",
675 [BTRFS_SHARED_BLOCK_REF_KEY] = "SHARED_BLOCK_REF",
676 [BTRFS_EXTENT_DATA_REF_KEY] = "EXTENT_DATA_REF",
677 [BTRFS_SHARED_DATA_REF_KEY] = "SHARED_DATA_REF",
678 [BTRFS_EXTENT_REF_V0_KEY] = "EXTENT_REF_V0",
679 [BTRFS_CSUM_ITEM_KEY] = "CSUM_ITEM",
680 [BTRFS_EXTENT_CSUM_KEY] = "EXTENT_CSUM",
681 [BTRFS_EXTENT_DATA_KEY] = "EXTENT_DATA",
682 [BTRFS_BLOCK_GROUP_ITEM_KEY] = "BLOCK_GROUP_ITEM",
683 [BTRFS_FREE_SPACE_INFO_KEY] = "FREE_SPACE_INFO",
684 [BTRFS_FREE_SPACE_EXTENT_KEY] = "FREE_SPACE_EXTENT",
685 [BTRFS_FREE_SPACE_BITMAP_KEY] = "FREE_SPACE_BITMAP",
686 [BTRFS_CHUNK_ITEM_KEY] = "CHUNK_ITEM",
687 [BTRFS_DEV_ITEM_KEY] = "DEV_ITEM",
688 [BTRFS_DEV_EXTENT_KEY] = "DEV_EXTENT",
689 [BTRFS_TEMPORARY_ITEM_KEY] = "TEMPORARY_ITEM",
690 [BTRFS_DEV_REPLACE_KEY] = "DEV_REPLACE",
691 [BTRFS_STRING_ITEM_KEY] = "STRING_ITEM",
692 [BTRFS_QGROUP_STATUS_KEY] = "QGROUP_STATUS",
693 [BTRFS_QGROUP_RELATION_KEY] = "QGROUP_RELATION",
694 [BTRFS_QGROUP_INFO_KEY] = "QGROUP_INFO",
695 [BTRFS_QGROUP_LIMIT_KEY] = "QGROUP_LIMIT",
696 [BTRFS_PERSISTENT_ITEM_KEY] = "PERSISTENT_ITEM",
697 [BTRFS_UUID_KEY_SUBVOL] = "UUID_KEY_SUBVOL",
698 [BTRFS_UUID_KEY_RECEIVED_SUBVOL] = "UUID_KEY_RECEIVED_SUBVOL",
699 };
700
701 if (type == 0 && objectid == BTRFS_FREE_SPACE_OBJECTID) {
702 fprintf(stream, "UNTYPED");
703 return;
704 }
705
706
707 if (key_to_str[type])
708 fputs(key_to_str[type], stream);
709 else
710 fprintf(stream, "UNKNOWN.%d", type);
711 }
712
713 void print_objectid(FILE *stream, u64 objectid, u8 type)
714 {
715 switch (type) {
716 case BTRFS_DEV_EXTENT_KEY:
717 /* device id */
718 fprintf(stream, "%llu", (unsigned long long)objectid);
719 return;
720 case BTRFS_QGROUP_RELATION_KEY:
721 fprintf(stream, "%llu/%llu", btrfs_qgroup_level(objectid),
722 btrfs_qgroup_subvid(objectid));
723 return;
724 case BTRFS_UUID_KEY_SUBVOL:
725 case BTRFS_UUID_KEY_RECEIVED_SUBVOL:
726 fprintf(stream, "0x%016llx", (unsigned long long)objectid);
727 return;
728 }
729
730 switch (objectid) {
731 case BTRFS_ROOT_TREE_OBJECTID:
732 if (type == BTRFS_DEV_ITEM_KEY)
733 fprintf(stream, "DEV_ITEMS");
734 else
735 fprintf(stream, "ROOT_TREE");
736 break;
737 case BTRFS_EXTENT_TREE_OBJECTID:
738 fprintf(stream, "EXTENT_TREE");
739 break;
740 case BTRFS_CHUNK_TREE_OBJECTID:
741 fprintf(stream, "CHUNK_TREE");
742 break;
743 case BTRFS_DEV_TREE_OBJECTID:
744 fprintf(stream, "DEV_TREE");
745 break;
746 case BTRFS_FS_TREE_OBJECTID:
747 fprintf(stream, "FS_TREE");
748 break;
749 case BTRFS_ROOT_TREE_DIR_OBJECTID:
750 fprintf(stream, "ROOT_TREE_DIR");
751 break;
752 case BTRFS_CSUM_TREE_OBJECTID:
753 fprintf(stream, "CSUM_TREE");
754 break;
755 case BTRFS_BALANCE_OBJECTID:
756 fprintf(stream, "BALANCE");
757 break;
758 case BTRFS_ORPHAN_OBJECTID:
759 fprintf(stream, "ORPHAN");
760 break;
761 case BTRFS_TREE_LOG_OBJECTID:
762 fprintf(stream, "TREE_LOG");
763 break;
764 case BTRFS_TREE_LOG_FIXUP_OBJECTID:
765 fprintf(stream, "LOG_FIXUP");
766 break;
767 case BTRFS_TREE_RELOC_OBJECTID:
768 fprintf(stream, "TREE_RELOC");
769 break;
770 case BTRFS_DATA_RELOC_TREE_OBJECTID:
771 fprintf(stream, "DATA_RELOC_TREE");
772 break;
773 case BTRFS_EXTENT_CSUM_OBJECTID:
774 fprintf(stream, "EXTENT_CSUM");
775 break;
776 case BTRFS_FREE_SPACE_OBJECTID:
777 fprintf(stream, "FREE_SPACE");
778 break;
779 case BTRFS_FREE_INO_OBJECTID:
780 fprintf(stream, "FREE_INO");
781 break;
782 case BTRFS_QUOTA_TREE_OBJECTID:
783 fprintf(stream, "QUOTA_TREE");
784 break;
785 case BTRFS_UUID_TREE_OBJECTID:
786 fprintf(stream, "UUID_TREE");
787 break;
788 case BTRFS_FREE_SPACE_TREE_OBJECTID:
789 fprintf(stream, "FREE_SPACE_TREE");
790 break;
791 case BTRFS_MULTIPLE_OBJECTIDS:
792 fprintf(stream, "MULTIPLE");
793 break;
794 case (u64)-1:
795 fprintf(stream, "-1");
796 break;
797 case BTRFS_FIRST_CHUNK_TREE_OBJECTID:
798 if (type == BTRFS_CHUNK_ITEM_KEY) {
799 fprintf(stream, "FIRST_CHUNK_TREE");
800 break;
801 }
802 /* fall-thru */
803 default:
804 fprintf(stream, "%llu", (unsigned long long)objectid);
805 }
806 }
807
808 void btrfs_print_key(struct btrfs_disk_key *disk_key)
809 {
810 u64 objectid = btrfs_disk_key_objectid(disk_key);
811 u8 type = btrfs_disk_key_type(disk_key);
812 u64 offset = btrfs_disk_key_offset(disk_key);
813
814 printf("key (");
815 print_objectid(stdout, objectid, type);
816 printf(" ");
817 print_key_type(stdout, objectid, type);
818 switch (type) {
819 case BTRFS_QGROUP_RELATION_KEY:
820 case BTRFS_QGROUP_INFO_KEY:
821 case BTRFS_QGROUP_LIMIT_KEY:
822 printf(" %llu/%llu)", btrfs_qgroup_level(offset),
823 btrfs_qgroup_subvid(offset));
824 break;
825 case BTRFS_UUID_KEY_SUBVOL:
826 case BTRFS_UUID_KEY_RECEIVED_SUBVOL:
827 printf(" 0x%016llx)", (unsigned long long)offset);
828 break;
829
830 /*
831 * Key offsets of ROOT_ITEM point to tree root, print them in human
832 * readable format. Especially useful for trees like data/tree reloc
833 * tree, whose tree id can be negative.
834 */
835 case BTRFS_ROOT_ITEM_KEY:
836 printf(" ");
837 print_objectid(stdout, offset, type);
838 printf(")");
839 break;
840 default:
841 if (offset == (u64)-1)
842 printf(" -1)");
843 else
844 printf(" %llu)", (unsigned long long)offset);
845 break;
846 }
847 }
848
849 static void print_uuid_item(struct extent_buffer *l, unsigned long offset,
850 u32 item_size)
851 {
852 if (item_size & (sizeof(u64) - 1)) {
853 printf("btrfs: uuid item with illegal size %lu!\n",
854 (unsigned long)item_size);
855 return;
856 }
857 while (item_size) {
858 __le64 subvol_id;
859
860 read_extent_buffer(l, &subvol_id, offset, sizeof(u64));
861 printf("\t\tsubvol_id %llu\n",
862 (unsigned long long)le64_to_cpu(subvol_id));
863 item_size -= sizeof(u64);
864 offset += sizeof(u64);
865 }
866 }
867
868 /* Btrfs inode flag stringification helper */
869 #define STRCAT_ONE_INODE_FLAG(flags, name, empty, dst) ({ \
870 if (flags & BTRFS_INODE_##name) { \
871 if (!empty) \
872 strcat(dst, "|"); \
873 strcat(dst, #name); \
874 empty = 0; \
875 } \
876 })
877
878 /*
879 * Caller should ensure sizeof(*ret) >= 102: all charactors plus '|' of
880 * BTRFS_INODE_* flags
881 */
882 static void inode_flags_to_str(u64 flags, char *ret)
883 {
884 int empty = 1;
885
886 STRCAT_ONE_INODE_FLAG(flags, NODATASUM, empty, ret);
887 STRCAT_ONE_INODE_FLAG(flags, NODATACOW, empty, ret);
888 STRCAT_ONE_INODE_FLAG(flags, READONLY, empty, ret);
889 STRCAT_ONE_INODE_FLAG(flags, NOCOMPRESS, empty, ret);
890 STRCAT_ONE_INODE_FLAG(flags, PREALLOC, empty, ret);
891 STRCAT_ONE_INODE_FLAG(flags, SYNC, empty, ret);
892 STRCAT_ONE_INODE_FLAG(flags, IMMUTABLE, empty, ret);
893 STRCAT_ONE_INODE_FLAG(flags, APPEND, empty, ret);
894 STRCAT_ONE_INODE_FLAG(flags, NODUMP, empty, ret);
895 STRCAT_ONE_INODE_FLAG(flags, NOATIME, empty, ret);
896 STRCAT_ONE_INODE_FLAG(flags, DIRSYNC, empty, ret);
897 STRCAT_ONE_INODE_FLAG(flags, COMPRESS, empty, ret);
898 if (empty)
899 strcat(ret, "none");
900 }
901
902 static void print_inode_item(struct extent_buffer *eb,
903 struct btrfs_inode_item *ii)
904 {
905 char flags_str[256];
906
907 memset(flags_str, 0, sizeof(flags_str));
908 inode_flags_to_str(btrfs_inode_flags(eb, ii), flags_str);
909 printf("\t\tgeneration %llu transid %llu size %llu nbytes %llu\n"
910 "\t\tblock group %llu mode %o links %u uid %u gid %u rdev %llu\n"
911 "\t\tsequence %llu flags 0x%llx(%s)\n",
912 (unsigned long long)btrfs_inode_generation(eb, ii),
913 (unsigned long long)btrfs_inode_transid(eb, ii),
914 (unsigned long long)btrfs_inode_size(eb, ii),
915 (unsigned long long)btrfs_inode_nbytes(eb, ii),
916 (unsigned long long)btrfs_inode_block_group(eb,ii),
917 btrfs_inode_mode(eb, ii),
918 btrfs_inode_nlink(eb, ii),
919 btrfs_inode_uid(eb, ii),
920 btrfs_inode_gid(eb, ii),
921 (unsigned long long)btrfs_inode_rdev(eb,ii),
922 (unsigned long long)btrfs_inode_flags(eb,ii),
923 (unsigned long long)btrfs_inode_sequence(eb, ii),
924 flags_str);
925 print_timespec(eb, btrfs_inode_atime(ii), "\t\tatime ", "\n");
926 print_timespec(eb, btrfs_inode_ctime(ii), "\t\tctime ", "\n");
927 print_timespec(eb, btrfs_inode_mtime(ii), "\t\tmtime ", "\n");
928 print_timespec(eb, btrfs_inode_otime(ii), "\t\totime ", "\n");
929 }
930
931 static void print_disk_balance_args(struct btrfs_disk_balance_args *ba)
932 {
933 printf("\t\tprofiles %llu devid %llu target %llu flags %llu\n",
934 (unsigned long long)le64_to_cpu(ba->profiles),
935 (unsigned long long)le64_to_cpu(ba->devid),
936 (unsigned long long)le64_to_cpu(ba->target),
937 (unsigned long long)le64_to_cpu(ba->flags));
938 printf("\t\tusage_min %u usage_max %u pstart %llu pend %llu\n",
939 le32_to_cpu(ba->usage_min),
940 le32_to_cpu(ba->usage_max),
941 (unsigned long long)le64_to_cpu(ba->pstart),
942 (unsigned long long)le64_to_cpu(ba->pend));
943 printf("\t\tvstart %llu vend %llu limit_min %u limit_max %u\n",
944 (unsigned long long)le64_to_cpu(ba->vstart),
945 (unsigned long long)le64_to_cpu(ba->vend),
946 le32_to_cpu(ba->limit_min),
947 le32_to_cpu(ba->limit_max));
948 printf("\t\tstripes_min %u stripes_max %u\n",
949 le32_to_cpu(ba->stripes_min),
950 le32_to_cpu(ba->stripes_max));
951 }
952
953 static void print_balance_item(struct extent_buffer *eb,
954 struct btrfs_balance_item *bi)
955 {
956 printf("\t\tbalance status flags %llu\n",
957 btrfs_balance_item_flags(eb, bi));
958
959 printf("\t\tDATA\n");
960 print_disk_balance_args(btrfs_balance_item_data(eb, bi));
961 printf("\t\tMETADATA\n");
962 print_disk_balance_args(btrfs_balance_item_meta(eb, bi));
963 printf("\t\tSYSTEM\n");
964 print_disk_balance_args(btrfs_balance_item_sys(eb, bi));
965 }
966
967 static void print_dev_stats(struct extent_buffer *eb,
968 struct btrfs_dev_stats_item *stats, u32 size)
969 {
970 int i;
971 u32 known = BTRFS_DEV_STAT_VALUES_MAX * sizeof(__le64);
972 __le64 *values = btrfs_dev_stats_values(eb, stats);
973
974 printf("\t\tdevice stats\n");
975 printf("\t\twrite_errs %llu read_errs %llu flush_errs %llu corruption_errs %llu generation %llu\n",
976 (unsigned long long)le64_to_cpu(values[BTRFS_DEV_STAT_WRITE_ERRS]),
977 (unsigned long long)le64_to_cpu(values[BTRFS_DEV_STAT_READ_ERRS]),
978 (unsigned long long)le64_to_cpu(values[BTRFS_DEV_STAT_FLUSH_ERRS]),
979 (unsigned long long)le64_to_cpu(values[BTRFS_DEV_STAT_CORRUPTION_ERRS]),
980 (unsigned long long)le64_to_cpu(values[BTRFS_DEV_STAT_GENERATION_ERRS]));
981
982 if (known < size) {
983 printf("\t\tunknown stats item bytes %u", size - known);
984 for (i = BTRFS_DEV_STAT_VALUES_MAX; i * sizeof(__le64) < size; i++) {
985 printf("\t\tunknown item %u offset %zu value %llu\n",
986 i, i * sizeof(__le64),
987 (unsigned long long)le64_to_cpu(values[i]));
988 }
989 }
990 }
991
992 static void print_block_group_item(struct extent_buffer *eb,
993 struct btrfs_block_group_item *bgi)
994 {
995 struct btrfs_block_group_item bg_item;
996 char flags_str[256];
997
998 read_extent_buffer(eb, &bg_item, (unsigned long)bgi, sizeof(bg_item));
999 memset(flags_str, 0, sizeof(flags_str));
1000 bg_flags_to_str(btrfs_block_group_flags(&bg_item), flags_str);
1001 printf("\t\tblock group used %llu chunk_objectid %llu flags %s\n",
1002 (unsigned long long)btrfs_block_group_used(&bg_item),
1003 (unsigned long long)btrfs_block_group_chunk_objectid(&bg_item),
1004 flags_str);
1005 }
1006
1007 static void print_extent_data_ref(struct extent_buffer *eb, int slot)
1008 {
1009 struct btrfs_extent_data_ref *dref;
1010
1011 dref = btrfs_item_ptr(eb, slot, struct btrfs_extent_data_ref);
1012 printf("\t\textent data backref root %llu "
1013 "objectid %llu offset %llu count %u\n",
1014 (unsigned long long)btrfs_extent_data_ref_root(eb, dref),
1015 (unsigned long long)btrfs_extent_data_ref_objectid(eb, dref),
1016 (unsigned long long)btrfs_extent_data_ref_offset(eb, dref),
1017 btrfs_extent_data_ref_count(eb, dref));
1018 }
1019
1020 static void print_shared_data_ref(struct extent_buffer *eb, int slot)
1021 {
1022 struct btrfs_shared_data_ref *sref;
1023
1024 sref = btrfs_item_ptr(eb, slot, struct btrfs_shared_data_ref);
1025 printf("\t\tshared data backref count %u\n",
1026 btrfs_shared_data_ref_count(eb, sref));
1027 }
1028
1029 static void print_free_space_info(struct extent_buffer *eb, int slot)
1030 {
1031 struct btrfs_free_space_info *free_info;
1032
1033 free_info = btrfs_item_ptr(eb, slot, struct btrfs_free_space_info);
1034 printf("\t\tfree space info extent count %u flags %u\n",
1035 (unsigned)btrfs_free_space_extent_count(eb, free_info),
1036 (unsigned)btrfs_free_space_flags(eb, free_info));
1037 }
1038
1039 static void print_dev_extent(struct extent_buffer *eb, int slot)
1040 {
1041 struct btrfs_dev_extent *dev_extent;
1042 u8 uuid[BTRFS_UUID_SIZE];
1043 char uuid_str[BTRFS_UUID_UNPARSED_SIZE];
1044
1045 dev_extent = btrfs_item_ptr(eb, slot, struct btrfs_dev_extent);
1046 read_extent_buffer(eb, uuid,
1047 (unsigned long)btrfs_dev_extent_chunk_tree_uuid(dev_extent),
1048 BTRFS_UUID_SIZE);
1049 uuid_unparse(uuid, uuid_str);
1050 printf("\t\tdev extent chunk_tree %llu\n"
1051 "\t\tchunk_objectid %llu chunk_offset %llu "
1052 "length %llu\n"
1053 "\t\tchunk_tree_uuid %s\n",
1054 (unsigned long long)btrfs_dev_extent_chunk_tree(eb, dev_extent),
1055 (unsigned long long)btrfs_dev_extent_chunk_objectid(eb, dev_extent),
1056 (unsigned long long)btrfs_dev_extent_chunk_offset(eb, dev_extent),
1057 (unsigned long long)btrfs_dev_extent_length(eb, dev_extent),
1058 uuid_str);
1059 }
1060
1061 static void print_qgroup_status(struct extent_buffer *eb, int slot)
1062 {
1063 struct btrfs_qgroup_status_item *qg_status;
1064 char flags_str[256];
1065
1066 qg_status = btrfs_item_ptr(eb, slot, struct btrfs_qgroup_status_item);
1067 memset(flags_str, 0, sizeof(flags_str));
1068 qgroup_flags_to_str(btrfs_qgroup_status_flags(eb, qg_status),
1069 flags_str);
1070 printf("\t\tversion %llu generation %llu flags %s scan %lld\n",
1071 (unsigned long long)btrfs_qgroup_status_version(eb, qg_status),
1072 (unsigned long long)btrfs_qgroup_status_generation(eb, qg_status),
1073 flags_str,
1074 (unsigned long long)btrfs_qgroup_status_rescan(eb, qg_status));
1075 }
1076
1077 static void print_qgroup_info(struct extent_buffer *eb, int slot)
1078 {
1079 struct btrfs_qgroup_info_item *qg_info;
1080
1081 qg_info = btrfs_item_ptr(eb, slot, struct btrfs_qgroup_info_item);
1082 printf("\t\tgeneration %llu\n"
1083 "\t\treferenced %llu referenced_compressed %llu\n"
1084 "\t\texclusive %llu exclusive_compressed %llu\n",
1085 (unsigned long long)btrfs_qgroup_info_generation(eb, qg_info),
1086 (unsigned long long)btrfs_qgroup_info_referenced(eb, qg_info),
1087 (unsigned long long)btrfs_qgroup_info_referenced_compressed(eb,
1088 qg_info),
1089 (unsigned long long)btrfs_qgroup_info_exclusive(eb, qg_info),
1090 (unsigned long long)btrfs_qgroup_info_exclusive_compressed(eb,
1091 qg_info));
1092 }
1093
1094 static void print_qgroup_limit(struct extent_buffer *eb, int slot)
1095 {
1096 struct btrfs_qgroup_limit_item *qg_limit;
1097
1098 qg_limit = btrfs_item_ptr(eb, slot, struct btrfs_qgroup_limit_item);
1099 printf("\t\tflags %llx\n"
1100 "\t\tmax_referenced %lld max_exclusive %lld\n"
1101 "\t\trsv_referenced %lld rsv_exclusive %lld\n",
1102 (unsigned long long)btrfs_qgroup_limit_flags(eb, qg_limit),
1103 (long long)btrfs_qgroup_limit_max_referenced(eb, qg_limit),
1104 (long long)btrfs_qgroup_limit_max_exclusive(eb, qg_limit),
1105 (long long)btrfs_qgroup_limit_rsv_referenced(eb, qg_limit),
1106 (long long)btrfs_qgroup_limit_rsv_exclusive(eb, qg_limit));
1107 }
1108
1109 static void print_persistent_item(struct extent_buffer *eb, void *ptr,
1110 u32 item_size, u64 objectid, u64 offset)
1111 {
1112 printf("\t\tpersistent item objectid ");
1113 print_objectid(stdout, objectid, BTRFS_PERSISTENT_ITEM_KEY);
1114 printf(" offset %llu\n", (unsigned long long)offset);
1115 switch (objectid) {
1116 case BTRFS_DEV_STATS_OBJECTID:
1117 print_dev_stats(eb, ptr, item_size);
1118 break;
1119 default:
1120 printf("\t\tunknown persistent item objectid %llu\n", objectid);
1121 }
1122 }
1123
1124 static void print_temporary_item(struct extent_buffer *eb, void *ptr,
1125 u64 objectid, u64 offset)
1126 {
1127 printf("\t\ttemporary item objectid ");
1128 print_objectid(stdout, objectid, BTRFS_TEMPORARY_ITEM_KEY);
1129 printf(" offset %llu\n", (unsigned long long)offset);
1130 switch (objectid) {
1131 case BTRFS_BALANCE_OBJECTID:
1132 print_balance_item(eb, ptr);
1133 break;
1134 default:
1135 printf("\t\tunknown temporary item objectid %llu\n", objectid);
1136 }
1137 }
1138
1139 static void print_extent_csum(struct extent_buffer *eb,
1140 struct btrfs_fs_info *fs_info, u32 item_size, u64 start)
1141 {
1142 u32 size;
1143
1144 size = (item_size / btrfs_super_csum_size(fs_info->super_copy)) *
1145 fs_info->sectorsize;
1146 printf("\t\trange start %llu end %llu length %u\n",
1147 (unsigned long long)start,
1148 (unsigned long long)start + size, size);
1149 }
1150
1151 /* Caller must ensure sizeof(*ret) >= 14 "WRITTEN|RELOC" */
1152 static void header_flags_to_str(u64 flags, char *ret)
1153 {
1154 int empty = 1;
1155
1156 if (flags & BTRFS_HEADER_FLAG_WRITTEN) {
1157 empty = 0;
1158 strcpy(ret, "WRITTEN");
1159 }
1160 if (flags & BTRFS_HEADER_FLAG_RELOC) {
1161 if (!empty)
1162 strcat(ret, "|");
1163 strcat(ret, "RELOC");
1164 }
1165 }
1166
1167 void btrfs_print_leaf(struct btrfs_root *root, struct extent_buffer *eb)
1168 {
1169 struct btrfs_item *item;
1170 struct btrfs_disk_key disk_key;
1171 char flags_str[128];
1172 u32 i;
1173 u32 nr;
1174 u64 flags;
1175 u8 backref_rev;
1176
1177 flags = btrfs_header_flags(eb) & ~BTRFS_BACKREF_REV_MASK;
1178 backref_rev = btrfs_header_flags(eb) >> BTRFS_BACKREF_REV_SHIFT;
1179 header_flags_to_str(flags, flags_str);
1180 nr = btrfs_header_nritems(eb);
1181
1182 printf("leaf %llu items %d free space %d generation %llu owner %llu\n",
1183 (unsigned long long)btrfs_header_bytenr(eb), nr,
1184 btrfs_leaf_free_space(root, eb),
1185 (unsigned long long)btrfs_header_generation(eb),
1186 (unsigned long long)btrfs_header_owner(eb));
1187 printf("leaf %llu flags 0x%llx(%s) backref revision %d\n",
1188 btrfs_header_bytenr(eb), flags, flags_str, backref_rev);
1189 print_uuids(eb);
1190 fflush(stdout);
1191
1192 for (i = 0; i < nr; i++) {
1193 u32 item_size;
1194 void *ptr;
1195 u64 objectid;
1196 u32 type;
1197 u64 offset;
1198
1199 item = btrfs_item_nr(i);
1200 item_size = btrfs_item_size(eb, item);
1201 /* Untyped extraction of slot from btrfs_item_ptr */
1202 ptr = btrfs_item_ptr(eb, i, void*);
1203
1204 btrfs_item_key(eb, &disk_key, i);
1205 objectid = btrfs_disk_key_objectid(&disk_key);
1206 type = btrfs_disk_key_type(&disk_key);
1207 offset = btrfs_disk_key_offset(&disk_key);
1208
1209 printf("\titem %d ", i);
1210 btrfs_print_key(&disk_key);
1211 printf(" itemoff %d itemsize %d\n",
1212 btrfs_item_offset(eb, item),
1213 btrfs_item_size(eb, item));
1214
1215 if (type == 0 && objectid == BTRFS_FREE_SPACE_OBJECTID)
1216 print_free_space_header(eb, i);
1217
1218 switch (type) {
1219 case BTRFS_INODE_ITEM_KEY:
1220 print_inode_item(eb, ptr);
1221 break;
1222 case BTRFS_INODE_REF_KEY:
1223 print_inode_ref_item(eb, item_size, ptr);
1224 break;
1225 case BTRFS_INODE_EXTREF_KEY:
1226 print_inode_extref_item(eb, item_size, ptr);
1227 break;
1228 case BTRFS_DIR_ITEM_KEY:
1229 case BTRFS_DIR_INDEX_KEY:
1230 case BTRFS_XATTR_ITEM_KEY:
1231 print_dir_item(eb, item_size, ptr);
1232 break;
1233 case BTRFS_DIR_LOG_INDEX_KEY:
1234 case BTRFS_DIR_LOG_ITEM_KEY: {
1235 struct btrfs_dir_log_item *dlog;
1236
1237 dlog = btrfs_item_ptr(eb, i, struct btrfs_dir_log_item);
1238 printf("\t\tdir log end %Lu\n",
1239 (unsigned long long)btrfs_dir_log_end(eb, dlog));
1240 break;
1241 }
1242 case BTRFS_ORPHAN_ITEM_KEY:
1243 printf("\t\torphan item\n");
1244 break;
1245 case BTRFS_ROOT_ITEM_KEY:
1246 print_root_item(eb, i);
1247 break;
1248 case BTRFS_ROOT_REF_KEY:
1249 print_root_ref(eb, i, "ref");
1250 break;
1251 case BTRFS_ROOT_BACKREF_KEY:
1252 print_root_ref(eb, i, "backref");
1253 break;
1254 case BTRFS_EXTENT_ITEM_KEY:
1255 print_extent_item(eb, i, 0);
1256 break;
1257 case BTRFS_METADATA_ITEM_KEY:
1258 print_extent_item(eb, i, 1);
1259 break;
1260 case BTRFS_TREE_BLOCK_REF_KEY:
1261 printf("\t\ttree block backref\n");
1262 break;
1263 case BTRFS_SHARED_BLOCK_REF_KEY:
1264 printf("\t\tshared block backref\n");
1265 break;
1266 case BTRFS_EXTENT_DATA_REF_KEY:
1267 print_extent_data_ref(eb, i);
1268 break;
1269 case BTRFS_SHARED_DATA_REF_KEY:
1270 print_shared_data_ref(eb, i);
1271 break;
1272 case BTRFS_EXTENT_REF_V0_KEY:
1273 #ifdef BTRFS_COMPAT_EXTENT_TREE_V0
1274 print_extent_ref_v0(eb, i);
1275 #else
1276 BUG();
1277 #endif
1278 break;
1279 case BTRFS_CSUM_ITEM_KEY:
1280 printf("\t\tcsum item\n");
1281 break;
1282 case BTRFS_EXTENT_CSUM_KEY:
1283 print_extent_csum(eb, root->fs_info, item_size,
1284 offset);
1285 break;
1286 case BTRFS_EXTENT_DATA_KEY:
1287 print_file_extent_item(eb, item, i, ptr);
1288 break;
1289 case BTRFS_BLOCK_GROUP_ITEM_KEY:
1290 print_block_group_item(eb, ptr);
1291 break;
1292 case BTRFS_FREE_SPACE_INFO_KEY:
1293 print_free_space_info(eb, i);
1294 break;
1295 case BTRFS_FREE_SPACE_EXTENT_KEY:
1296 printf("\t\tfree space extent\n");
1297 break;
1298 case BTRFS_FREE_SPACE_BITMAP_KEY:
1299 printf("\t\tfree space bitmap\n");
1300 break;
1301 case BTRFS_CHUNK_ITEM_KEY:
1302 print_chunk_item(eb, ptr);
1303 break;
1304 case BTRFS_DEV_ITEM_KEY:
1305 print_dev_item(eb, ptr);
1306 break;
1307 case BTRFS_DEV_EXTENT_KEY:
1308 print_dev_extent(eb, i);
1309 break;
1310 case BTRFS_QGROUP_STATUS_KEY:
1311 print_qgroup_status(eb, i);
1312 break;
1313 case BTRFS_QGROUP_RELATION_KEY:
1314 break;
1315 case BTRFS_QGROUP_INFO_KEY:
1316 print_qgroup_info(eb, i);
1317 break;
1318 case BTRFS_QGROUP_LIMIT_KEY:
1319 print_qgroup_limit(eb, i);
1320 break;
1321 case BTRFS_UUID_KEY_SUBVOL:
1322 case BTRFS_UUID_KEY_RECEIVED_SUBVOL:
1323 print_uuid_item(eb, btrfs_item_ptr_offset(eb, i),
1324 btrfs_item_size_nr(eb, i));
1325 break;
1326 case BTRFS_STRING_ITEM_KEY: {
1327 const char *str = eb->data + btrfs_item_ptr_offset(eb, i);
1328
1329 printf("\t\titem data %.*s\n", item_size, str);
1330 break;
1331 }
1332 case BTRFS_PERSISTENT_ITEM_KEY:
1333 print_persistent_item(eb, ptr, item_size, objectid,
1334 offset);
1335 break;
1336 case BTRFS_TEMPORARY_ITEM_KEY:
1337 print_temporary_item(eb, ptr, objectid, offset);
1338 break;
1339 };
1340 fflush(stdout);
1341 }
1342 }
1343
1344 void btrfs_print_tree(struct btrfs_root *root, struct extent_buffer *eb, int follow)
1345 {
1346 u32 i;
1347 u32 nr;
1348 struct btrfs_disk_key disk_key;
1349 struct btrfs_key key;
1350 struct extent_buffer *next;
1351
1352 if (!eb)
1353 return;
1354 nr = btrfs_header_nritems(eb);
1355 if (btrfs_is_leaf(eb)) {
1356 btrfs_print_leaf(root, eb);
1357 return;
1358 }
1359 printf("node %llu level %d items %d free %u generation %llu owner %llu\n",
1360 (unsigned long long)eb->start,
1361 btrfs_header_level(eb), nr,
1362 (u32)BTRFS_NODEPTRS_PER_BLOCK(root->fs_info) - nr,
1363 (unsigned long long)btrfs_header_generation(eb),
1364 (unsigned long long)btrfs_header_owner(eb));
1365 print_uuids(eb);
1366 fflush(stdout);
1367 for (i = 0; i < nr; i++) {
1368 u64 blocknr = btrfs_node_blockptr(eb, i);
1369 btrfs_node_key(eb, &disk_key, i);
1370 btrfs_disk_key_to_cpu(&key, &disk_key);
1371 printf("\t");
1372 btrfs_print_key(&disk_key);
1373 printf(" block %llu (%llu) gen %llu\n",
1374 (unsigned long long)blocknr,
1375 (unsigned long long)blocknr / root->fs_info->nodesize,
1376 (unsigned long long)btrfs_node_ptr_generation(eb, i));
1377 fflush(stdout);
1378 }
1379 if (!follow)
1380 return;
1381
1382 for (i = 0; i < nr; i++) {
1383 next = read_tree_block(root->fs_info,
1384 btrfs_node_blockptr(eb, i),
1385 btrfs_node_ptr_generation(eb, i));
1386 if (!extent_buffer_uptodate(next)) {
1387 fprintf(stderr, "failed to read %llu in tree %llu\n",
1388 (unsigned long long)btrfs_node_blockptr(eb, i),
1389 (unsigned long long)btrfs_header_owner(eb));
1390 continue;
1391 }
1392 if (btrfs_is_leaf(next) && btrfs_header_level(eb) != 1) {
1393 warning(
1394 "eb corrupted: item %d eb level %d next level %d, skipping the rest",
1395 i, btrfs_header_level(next),
1396 btrfs_header_level(eb));
1397 goto out;
1398 }
1399 if (btrfs_header_level(next) != btrfs_header_level(eb) - 1) {
1400 warning(
1401 "eb corrupted: item %d eb level %d next level %d, skipping the rest",
1402 i, btrfs_header_level(next),
1403 btrfs_header_level(eb));
1404 goto out;
1405 }
1406 btrfs_print_tree(root, next, 1);
1407 free_extent_buffer(next);
1408 }
1409
1410 return;
1411
1412 out:
1413 free_extent_buffer(next);
1414 }
(deprecated) Btrfs progs developments and patch integration