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btrfs-progs: docs: add missing short option for qroup-report
[btrfs-progs-unstable/devel.git] / print-tree.c
blob5927ed3566738dc09e545198e1096daecf3dbc16
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\tinode extref index %llu parent %llu namelen %u "
108 "name: %.*s\n",
109 (unsigned long long)index,
110 (unsigned long long)parent_objid,
111 name_len, len, namebuf);
112
113 len = sizeof(*extref) + name_len;
114 extref = (struct btrfs_inode_extref *)((char *)extref + len);
115 cur += len;
116 }
117 }
118
119 static void print_inode_ref_item(struct extent_buffer *eb, u32 size,
120 struct btrfs_inode_ref *ref)
121 {
122 u32 cur = 0;
123 u32 len;
124 u32 name_len;
125 u64 index;
126 char namebuf[BTRFS_NAME_LEN];
127
128 while (cur < size) {
129 name_len = btrfs_inode_ref_name_len(eb, ref);
130 index = btrfs_inode_ref_index(eb, ref);
131 len = (name_len <= sizeof(namebuf))? name_len: sizeof(namebuf);
132 read_extent_buffer(eb, namebuf, (unsigned long)(ref + 1), len);
133 printf("\t\tinode ref index %llu namelen %u name: %.*s\n",
134 (unsigned long long)index, name_len, len, namebuf);
135 len = sizeof(*ref) + name_len;
136 ref = (struct btrfs_inode_ref *)((char *)ref + len);
137 cur += len;
138 }
139 }
140
141 /* Caller should ensure sizeof(*ret)>=21 "DATA|METADATA|RAID10" */
142 static void bg_flags_to_str(u64 flags, char *ret)
143 {
144 int empty = 1;
145
146 if (flags & BTRFS_BLOCK_GROUP_DATA) {
147 empty = 0;
148 strcpy(ret, "DATA");
149 }
150 if (flags & BTRFS_BLOCK_GROUP_METADATA) {
151 if (!empty)
152 strcat(ret, "|");
153 strcat(ret, "METADATA");
154 }
155 if (flags & BTRFS_BLOCK_GROUP_SYSTEM) {
156 if (!empty)
157 strcat(ret, "|");
158 strcat(ret, "SYSTEM");
159 }
160 switch (flags & BTRFS_BLOCK_GROUP_PROFILE_MASK) {
161 case BTRFS_BLOCK_GROUP_RAID0:
162 strcat(ret, "|RAID0");
163 break;
164 case BTRFS_BLOCK_GROUP_RAID1:
165 strcat(ret, "|RAID1");
166 break;
167 case BTRFS_BLOCK_GROUP_DUP:
168 strcat(ret, "|DUP");
169 break;
170 case BTRFS_BLOCK_GROUP_RAID10:
171 strcat(ret, "|RAID10");
172 break;
173 case BTRFS_BLOCK_GROUP_RAID5:
174 strcat(ret, "|RAID5");
175 break;
176 case BTRFS_BLOCK_GROUP_RAID6:
177 strcat(ret, "|RAID6");
178 break;
179 default:
180 break;
181 }
182 }
183
184 /* Caller should ensure sizeof(*ret)>= 26 "OFF|SCANNING|INCONSISTENT" */
185 static void qgroup_flags_to_str(u64 flags, char *ret)
186 {
187 if (flags & BTRFS_QGROUP_STATUS_FLAG_ON)
188 strcpy(ret, "ON");
189 else
190 strcpy(ret, "OFF");
191
192 if (flags & BTRFS_QGROUP_STATUS_FLAG_RESCAN)
193 strcat(ret, "|SCANNING");
194 if (flags & BTRFS_QGROUP_STATUS_FLAG_INCONSISTENT)
195 strcat(ret, "|INCONSISTENT");
196 }
197
198 void print_chunk(struct extent_buffer *eb, struct btrfs_chunk *chunk)
199 {
200 u16 num_stripes = btrfs_chunk_num_stripes(eb, chunk);
201 int i;
202 u32 chunk_item_size = btrfs_chunk_item_size(num_stripes);
203 char chunk_flags_str[32] = {0};
204
205 if ((unsigned long)chunk + chunk_item_size > eb->len) {
206 printf("\t\tchunk item invalid\n");
207 return;
208 }
209
210 bg_flags_to_str(btrfs_chunk_type(eb, chunk), chunk_flags_str);
211 printf("\t\tlength %llu owner %llu stripe_len %llu type %s\n",
212 (unsigned long long)btrfs_chunk_length(eb, chunk),
213 (unsigned long long)btrfs_chunk_owner(eb, chunk),
214 (unsigned long long)btrfs_chunk_stripe_len(eb, chunk),
215 chunk_flags_str);
216 printf("\t\tio_align %u io_width %u sector_size %u\n",
217 btrfs_chunk_io_align(eb, chunk),
218 btrfs_chunk_io_width(eb, chunk),
219 btrfs_chunk_sector_size(eb, chunk));
220 printf("\t\tnum_stripes %hu sub_stripes %hu\n", num_stripes,
221 btrfs_chunk_sub_stripes(eb, chunk));
222 for (i = 0 ; i < num_stripes ; i++) {
223 unsigned char dev_uuid[BTRFS_UUID_SIZE];
224 char str_dev_uuid[BTRFS_UUID_UNPARSED_SIZE];
225 u64 uuid_offset;
226 u64 stripe_offset;
227
228 uuid_offset = (unsigned long)btrfs_stripe_dev_uuid_nr(chunk, i);
229 stripe_offset = (unsigned long)btrfs_stripe_nr(chunk, i);
230
231 if (uuid_offset < stripe_offset ||
232 (uuid_offset + BTRFS_UUID_SIZE) >
233 (stripe_offset + sizeof(struct btrfs_stripe))) {
234 printf("\t\t\tstripe %d invalid\n", i);
235 break;
236 }
237
238 read_extent_buffer(eb, dev_uuid,
239 uuid_offset,
240 BTRFS_UUID_SIZE);
241 uuid_unparse(dev_uuid, str_dev_uuid);
242 printf("\t\t\tstripe %d devid %llu offset %llu\n", i,
243 (unsigned long long)btrfs_stripe_devid_nr(eb, chunk, i),
244 (unsigned long long)btrfs_stripe_offset_nr(eb, chunk, i));
245 printf("\t\t\tdev_uuid %s\n", str_dev_uuid);
246 }
247 }
248
249 static void print_dev_item(struct extent_buffer *eb,
250 struct btrfs_dev_item *dev_item)
251 {
252 char uuid_str[BTRFS_UUID_UNPARSED_SIZE];
253 char fsid_str[BTRFS_UUID_UNPARSED_SIZE];
254 u8 uuid[BTRFS_UUID_SIZE];
255 u8 fsid[BTRFS_UUID_SIZE];
256
257 read_extent_buffer(eb, uuid,
258 (unsigned long)btrfs_device_uuid(dev_item),
259 BTRFS_UUID_SIZE);
260 uuid_unparse(uuid, uuid_str);
261 read_extent_buffer(eb, fsid,
262 (unsigned long)btrfs_device_fsid(dev_item),
263 BTRFS_UUID_SIZE);
264 uuid_unparse(fsid, fsid_str);
265 printf("\t\tdevid %llu total_bytes %llu bytes_used %Lu\n"
266 "\t\tio_align %u io_width %u sector_size %u type %llu\n"
267 "\t\tgeneration %llu start_offset %llu dev_group %u\n"
268 "\t\tseek_speed %hhu bandwidth %hhu\n"
269 "\t\tuuid %s\n"
270 "\t\tfsid %s\n",
271 (unsigned long long)btrfs_device_id(eb, dev_item),
272 (unsigned long long)btrfs_device_total_bytes(eb, dev_item),
273 (unsigned long long)btrfs_device_bytes_used(eb, dev_item),
274 btrfs_device_io_align(eb, dev_item),
275 btrfs_device_io_width(eb, dev_item),
276 btrfs_device_sector_size(eb, dev_item),
277 (unsigned long long)btrfs_device_type(eb, dev_item),
278 (unsigned long long)btrfs_device_generation(eb, dev_item),
279 (unsigned long long)btrfs_device_start_offset(eb, dev_item),
280 btrfs_device_group(eb, dev_item),
281 btrfs_device_seek_speed(eb, dev_item),
282 btrfs_device_bandwidth(eb, dev_item),
283 uuid_str, fsid_str);
284 }
285
286 static void print_uuids(struct extent_buffer *eb)
287 {
288 char fs_uuid[BTRFS_UUID_UNPARSED_SIZE];
289 char chunk_uuid[BTRFS_UUID_UNPARSED_SIZE];
290 u8 disk_uuid[BTRFS_UUID_SIZE];
291
292 read_extent_buffer(eb, disk_uuid, btrfs_header_fsid(),
293 BTRFS_FSID_SIZE);
294
295 fs_uuid[BTRFS_UUID_UNPARSED_SIZE - 1] = '\0';
296 uuid_unparse(disk_uuid, fs_uuid);
297
298 read_extent_buffer(eb, disk_uuid,
299 btrfs_header_chunk_tree_uuid(eb),
300 BTRFS_UUID_SIZE);
301
302 chunk_uuid[BTRFS_UUID_UNPARSED_SIZE - 1] = '\0';
303 uuid_unparse(disk_uuid, chunk_uuid);
304 printf("fs uuid %s\nchunk uuid %s\n", fs_uuid, chunk_uuid);
305 }
306
307 static void compress_type_to_str(u8 compress_type, char *ret)
308 {
309 switch (compress_type) {
310 case BTRFS_COMPRESS_NONE:
311 strcpy(ret, "none");
312 break;
313 case BTRFS_COMPRESS_ZLIB:
314 strcpy(ret, "zlib");
315 break;
316 case BTRFS_COMPRESS_LZO:
317 strcpy(ret, "lzo");
318 break;
319 default:
320 sprintf(ret, "UNKNOWN.%d", compress_type);
321 }
322 }
323
324 static const char* file_extent_type_to_str(u8 type)
325 {
326 switch (type) {
327 case BTRFS_FILE_EXTENT_INLINE: return "inline";
328 case BTRFS_FILE_EXTENT_PREALLOC: return "prealloc";
329 case BTRFS_FILE_EXTENT_REG: return "regular";
330 default: return "unknown";
331 }
332 }
333
334 static void print_file_extent_item(struct extent_buffer *eb,
335 struct btrfs_item *item,
336 int slot,
337 struct btrfs_file_extent_item *fi)
338 {
339 unsigned char extent_type = btrfs_file_extent_type(eb, fi);
340 char compress_str[16];
341
342 compress_type_to_str(btrfs_file_extent_compression(eb, fi),
343 compress_str);
344
345 printf("\t\tgeneration %llu type %hhu (%s)\n",
346 btrfs_file_extent_generation(eb, fi),
347 extent_type, file_extent_type_to_str(extent_type));
348
349 if (extent_type == BTRFS_FILE_EXTENT_INLINE) {
350 printf("\t\tinline extent data size %u ram_bytes %u compression %hhu (%s)\n",
351 btrfs_file_extent_inline_item_len(eb, item),
352 btrfs_file_extent_inline_len(eb, slot, fi),
353 btrfs_file_extent_compression(eb, fi),
354 compress_str);
355 return;
356 }
357 if (extent_type == BTRFS_FILE_EXTENT_PREALLOC) {
358 printf("\t\tprealloc data disk byte %llu nr %llu\n",
359 (unsigned long long)btrfs_file_extent_disk_bytenr(eb, fi),
360 (unsigned long long)btrfs_file_extent_disk_num_bytes(eb, fi));
361 printf("\t\tprealloc data offset %llu nr %llu\n",
362 (unsigned long long)btrfs_file_extent_offset(eb, fi),
363 (unsigned long long)btrfs_file_extent_num_bytes(eb, fi));
364 return;
365 }
366 printf("\t\textent data disk byte %llu nr %llu\n",
367 (unsigned long long)btrfs_file_extent_disk_bytenr(eb, fi),
368 (unsigned long long)btrfs_file_extent_disk_num_bytes(eb, fi));
369 printf("\t\textent data offset %llu nr %llu ram %llu\n",
370 (unsigned long long)btrfs_file_extent_offset(eb, fi),
371 (unsigned long long)btrfs_file_extent_num_bytes(eb, fi),
372 (unsigned long long)btrfs_file_extent_ram_bytes(eb, fi));
373 printf("\t\textent compression %hhu (%s)\n",
374 btrfs_file_extent_compression(eb, fi),
375 compress_str);
376 }
377
378 /* Caller should ensure sizeof(*ret) >= 16("DATA|TREE_BLOCK") */
379 static void extent_flags_to_str(u64 flags, char *ret)
380 {
381 int empty = 1;
382
383 if (flags & BTRFS_EXTENT_FLAG_DATA) {
384 empty = 0;
385 strcpy(ret, "DATA");
386 }
387 if (flags & BTRFS_EXTENT_FLAG_TREE_BLOCK) {
388 if (!empty) {
389 empty = 0;
390 strcat(ret, "|");
391 }
392 strcat(ret, "TREE_BLOCK");
393 }
394 if (flags & BTRFS_BLOCK_FLAG_FULL_BACKREF) {
395 strcat(ret, "|");
396 strcat(ret, "FULL_BACKREF");
397 }
398 }
399
400 void print_extent_item(struct extent_buffer *eb, int slot, int metadata)
401 {
402 struct btrfs_extent_item *ei;
403 struct btrfs_extent_inline_ref *iref;
404 struct btrfs_extent_data_ref *dref;
405 struct btrfs_shared_data_ref *sref;
406 struct btrfs_disk_key key;
407 unsigned long end;
408 unsigned long ptr;
409 int type;
410 u32 item_size = btrfs_item_size_nr(eb, slot);
411 u64 flags;
412 u64 offset;
413 char flags_str[32] = {0};
414
415 if (item_size < sizeof(*ei)) {
416 #ifdef BTRFS_COMPAT_EXTENT_TREE_V0
417 struct btrfs_extent_item_v0 *ei0;
418 BUG_ON(item_size != sizeof(*ei0));
419 ei0 = btrfs_item_ptr(eb, slot, struct btrfs_extent_item_v0);
420 printf("\t\textent refs %u\n",
421 btrfs_extent_refs_v0(eb, ei0));
422 return;
423 #else
424 BUG();
425 #endif
426 }
427
428 ei = btrfs_item_ptr(eb, slot, struct btrfs_extent_item);
429 flags = btrfs_extent_flags(eb, ei);
430 extent_flags_to_str(flags, flags_str);
431
432 printf("\t\textent refs %llu gen %llu flags %s\n",
433 (unsigned long long)btrfs_extent_refs(eb, ei),
434 (unsigned long long)btrfs_extent_generation(eb, ei),
435 flags_str);
436
437 if (flags & BTRFS_EXTENT_FLAG_TREE_BLOCK && !metadata) {
438 struct btrfs_tree_block_info *info;
439 info = (struct btrfs_tree_block_info *)(ei + 1);
440 btrfs_tree_block_key(eb, info, &key);
441 printf("\t\ttree block ");
442 btrfs_print_key(&key);
443 printf(" level %d\n", btrfs_tree_block_level(eb, info));
444 iref = (struct btrfs_extent_inline_ref *)(info + 1);
445 } else if (metadata) {
446 struct btrfs_key tmp;
447
448 btrfs_item_key_to_cpu(eb, &tmp, slot);
449 printf("\t\ttree block skinny level %d\n", (int)tmp.offset);
450 iref = (struct btrfs_extent_inline_ref *)(ei + 1);
451 } else{
452 iref = (struct btrfs_extent_inline_ref *)(ei + 1);
453 }
454
455 ptr = (unsigned long)iref;
456 end = (unsigned long)ei + item_size;
457 while (ptr < end) {
458 iref = (struct btrfs_extent_inline_ref *)ptr;
459 type = btrfs_extent_inline_ref_type(eb, iref);
460 offset = btrfs_extent_inline_ref_offset(eb, iref);
461 switch (type) {
462 case BTRFS_TREE_BLOCK_REF_KEY:
463 printf("\t\ttree block backref root %llu\n",
464 (unsigned long long)offset);
465 break;
466 case BTRFS_SHARED_BLOCK_REF_KEY:
467 printf("\t\tshared block backref parent %llu\n",
468 (unsigned long long)offset);
469 break;
470 case BTRFS_EXTENT_DATA_REF_KEY:
471 dref = (struct btrfs_extent_data_ref *)(&iref->offset);
472 printf("\t\textent data backref root %llu "
473 "objectid %llu offset %llu count %u\n",
474 (unsigned long long)btrfs_extent_data_ref_root(eb, dref),
475 (unsigned long long)btrfs_extent_data_ref_objectid(eb, dref),
476 (unsigned long long)btrfs_extent_data_ref_offset(eb, dref),
477 btrfs_extent_data_ref_count(eb, dref));
478 break;
479 case BTRFS_SHARED_DATA_REF_KEY:
480 sref = (struct btrfs_shared_data_ref *)(iref + 1);
481 printf("\t\tshared data backref parent %llu count %u\n",
482 (unsigned long long)offset,
483 btrfs_shared_data_ref_count(eb, sref));
484 break;
485 default:
486 return;
487 }
488 ptr += btrfs_extent_inline_ref_size(type);
489 }
490 WARN_ON(ptr > end);
491 }
492
493 #ifdef BTRFS_COMPAT_EXTENT_TREE_V0
494 static void print_extent_ref_v0(struct extent_buffer *eb, int slot)
495 {
496 struct btrfs_extent_ref_v0 *ref0;
497
498 ref0 = btrfs_item_ptr(eb, slot, struct btrfs_extent_ref_v0);
499 printf("\t\textent back ref root %llu gen %llu "
500 "owner %llu num_refs %lu\n",
501 (unsigned long long)btrfs_ref_root_v0(eb, ref0),
502 (unsigned long long)btrfs_ref_generation_v0(eb, ref0),
503 (unsigned long long)btrfs_ref_objectid_v0(eb, ref0),
504 (unsigned long)btrfs_ref_count_v0(eb, ref0));
505 }
506 #endif
507
508 static void print_root_ref(struct extent_buffer *leaf, int slot, const char *tag)
509 {
510 struct btrfs_root_ref *ref;
511 char namebuf[BTRFS_NAME_LEN];
512 int namelen;
513
514 ref = btrfs_item_ptr(leaf, slot, struct btrfs_root_ref);
515 namelen = btrfs_root_ref_name_len(leaf, ref);
516 read_extent_buffer(leaf, namebuf, (unsigned long)(ref + 1), namelen);
517 printf("\t\troot %s key dirid %llu sequence %llu name %.*s\n", tag,
518 (unsigned long long)btrfs_root_ref_dirid(leaf, ref),
519 (unsigned long long)btrfs_root_ref_sequence(leaf, ref),
520 namelen, namebuf);
521 }
522
523 static int empty_uuid(const u8 *uuid)
524 {
525 int i;
526
527 for (i = 0; i < BTRFS_UUID_SIZE; i++)
528 if (uuid[i])
529 return 0;
530 return 1;
531 }
532
533 /*
534 * Caller must ensure sizeof(*ret) >= 7 "RDONLY"
535 */
536 static void root_flags_to_str(u64 flags, char *ret)
537 {
538 if (flags & BTRFS_ROOT_SUBVOL_RDONLY)
539 strcat(ret, "RDONLY");
540 else
541 strcat(ret, "none");
542 }
543
544 static void print_root(struct extent_buffer *leaf, int slot)
545 {
546 struct btrfs_root_item *ri;
547 struct btrfs_root_item root_item;
548 int len;
549 char uuid_str[BTRFS_UUID_UNPARSED_SIZE];
550 char flags_str[32] = {0};
551 struct btrfs_key drop_key;
552
553 ri = btrfs_item_ptr(leaf, slot, struct btrfs_root_item);
554 len = btrfs_item_size_nr(leaf, slot);
555
556 memset(&root_item, 0, sizeof(root_item));
557 read_extent_buffer(leaf, &root_item, (unsigned long)ri, len);
558 root_flags_to_str(btrfs_root_flags(&root_item), flags_str);
559
560 printf("\t\tgeneration %llu root_dirid %llu bytenr %llu level %hhu refs %u\n",
561 (unsigned long long)btrfs_root_generation(&root_item),
562 (unsigned long long)btrfs_root_dirid(&root_item),
563 (unsigned long long)btrfs_root_bytenr(&root_item),
564 btrfs_root_level(&root_item),
565 btrfs_root_refs(&root_item));
566 printf("\t\tlastsnap %llu byte_limit %llu bytes_used %llu flags 0x%llx(%s)\n",
567 (unsigned long long)btrfs_root_last_snapshot(&root_item),
568 (unsigned long long)btrfs_root_limit(&root_item),
569 (unsigned long long)btrfs_root_used(&root_item),
570 (unsigned long long)btrfs_root_flags(&root_item),
571 flags_str);
572
573 if (root_item.generation == root_item.generation_v2) {
574 uuid_unparse(root_item.uuid, uuid_str);
575 printf("\t\tuuid %s\n", uuid_str);
576 if (!empty_uuid(root_item.parent_uuid)) {
577 uuid_unparse(root_item.parent_uuid, uuid_str);
578 printf("\t\tparent_uuid %s\n", uuid_str);
579 }
580 if (!empty_uuid(root_item.received_uuid)) {
581 uuid_unparse(root_item.received_uuid, uuid_str);
582 printf("\t\treceived_uuid %s\n", uuid_str);
583 }
584 if (root_item.ctransid) {
585 printf("\t\tctransid %llu otransid %llu stransid %llu rtransid %llu\n",
586 btrfs_root_ctransid(&root_item),
587 btrfs_root_otransid(&root_item),
588 btrfs_root_stransid(&root_item),
589 btrfs_root_rtransid(&root_item));
590 }
591 }
592
593 btrfs_disk_key_to_cpu(&drop_key, &root_item.drop_progress);
594 printf("\t\tdrop ");
595 btrfs_print_key(&root_item.drop_progress);
596 printf(" level %hhu\n", root_item.drop_level);
597 }
598
599 static void print_free_space_header(struct extent_buffer *leaf, int slot)
600 {
601 struct btrfs_free_space_header *header;
602 struct btrfs_disk_key location;
603
604 header = btrfs_item_ptr(leaf, slot, struct btrfs_free_space_header);
605 btrfs_free_space_key(leaf, header, &location);
606 printf("\t\tlocation ");
607 btrfs_print_key(&location);
608 printf("\n");
609 printf("\t\tcache generation %llu entries %llu bitmaps %llu\n",
610 (unsigned long long)btrfs_free_space_generation(leaf, header),
611 (unsigned long long)btrfs_free_space_entries(leaf, header),
612 (unsigned long long)btrfs_free_space_bitmaps(leaf, header));
613 }
614
615 void print_key_type(FILE *stream, u64 objectid, u8 type)
616 {
617 static const char* key_to_str[256] = {
618 [BTRFS_INODE_ITEM_KEY] = "INODE_ITEM",
619 [BTRFS_INODE_REF_KEY] = "INODE_REF",
620 [BTRFS_INODE_EXTREF_KEY] = "INODE_EXTREF",
621 [BTRFS_DIR_ITEM_KEY] = "DIR_ITEM",
622 [BTRFS_DIR_INDEX_KEY] = "DIR_INDEX",
623 [BTRFS_DIR_LOG_ITEM_KEY] = "DIR_LOG_ITEM",
624 [BTRFS_DIR_LOG_INDEX_KEY] = "DIR_LOG_INDEX",
625 [BTRFS_XATTR_ITEM_KEY] = "XATTR_ITEM",
626 [BTRFS_ORPHAN_ITEM_KEY] = "ORPHAN_ITEM",
627 [BTRFS_ROOT_ITEM_KEY] = "ROOT_ITEM",
628 [BTRFS_ROOT_REF_KEY] = "ROOT_REF",
629 [BTRFS_ROOT_BACKREF_KEY] = "ROOT_BACKREF",
630 [BTRFS_EXTENT_ITEM_KEY] = "EXTENT_ITEM",
631 [BTRFS_METADATA_ITEM_KEY] = "METADATA_ITEM",
632 [BTRFS_TREE_BLOCK_REF_KEY] = "TREE_BLOCK_REF",
633 [BTRFS_SHARED_BLOCK_REF_KEY] = "SHARED_BLOCK_REF",
634 [BTRFS_EXTENT_DATA_REF_KEY] = "EXTENT_DATA_REF",
635 [BTRFS_SHARED_DATA_REF_KEY] = "SHARED_DATA_REF",
636 [BTRFS_EXTENT_REF_V0_KEY] = "EXTENT_REF_V0",
637 [BTRFS_CSUM_ITEM_KEY] = "CSUM_ITEM",
638 [BTRFS_EXTENT_CSUM_KEY] = "EXTENT_CSUM",
639 [BTRFS_EXTENT_DATA_KEY] = "EXTENT_DATA",
640 [BTRFS_BLOCK_GROUP_ITEM_KEY] = "BLOCK_GROUP_ITEM",
641 [BTRFS_FREE_SPACE_INFO_KEY] = "FREE_SPACE_INFO",
642 [BTRFS_FREE_SPACE_EXTENT_KEY] = "FREE_SPACE_EXTENT",
643 [BTRFS_FREE_SPACE_BITMAP_KEY] = "FREE_SPACE_BITMAP",
644 [BTRFS_CHUNK_ITEM_KEY] = "CHUNK_ITEM",
645 [BTRFS_DEV_ITEM_KEY] = "DEV_ITEM",
646 [BTRFS_DEV_EXTENT_KEY] = "DEV_EXTENT",
647 [BTRFS_TEMPORARY_ITEM_KEY] = "TEMPORARY_ITEM",
648 [BTRFS_DEV_REPLACE_KEY] = "DEV_REPLACE",
649 [BTRFS_STRING_ITEM_KEY] = "STRING_ITEM",
650 [BTRFS_QGROUP_STATUS_KEY] = "QGROUP_STATUS",
651 [BTRFS_QGROUP_RELATION_KEY] = "QGROUP_RELATION",
652 [BTRFS_QGROUP_INFO_KEY] = "QGROUP_INFO",
653 [BTRFS_QGROUP_LIMIT_KEY] = "QGROUP_LIMIT",
654 [BTRFS_PERSISTENT_ITEM_KEY] = "PERSISTENT_ITEM",
655 [BTRFS_UUID_KEY_SUBVOL] = "UUID_KEY_SUBVOL",
656 [BTRFS_UUID_KEY_RECEIVED_SUBVOL] = "UUID_KEY_RECEIVED_SUBVOL",
657 };
658
659 if (type == 0 && objectid == BTRFS_FREE_SPACE_OBJECTID) {
660 fprintf(stream, "UNTYPED");
661 return;
662 }
663
664
665 if (key_to_str[type])
666 fputs(key_to_str[type], stream);
667 else
668 fprintf(stream, "UNKNOWN.%d", type);
669 }
670
671 void print_objectid(FILE *stream, u64 objectid, u8 type)
672 {
673 switch (type) {
674 case BTRFS_DEV_EXTENT_KEY:
675 /* device id */
676 fprintf(stream, "%llu", (unsigned long long)objectid);
677 return;
678 case BTRFS_QGROUP_RELATION_KEY:
679 fprintf(stream, "%llu/%llu", btrfs_qgroup_level(objectid),
680 btrfs_qgroup_subvid(objectid));
681 return;
682 case BTRFS_UUID_KEY_SUBVOL:
683 case BTRFS_UUID_KEY_RECEIVED_SUBVOL:
684 fprintf(stream, "0x%016llx", (unsigned long long)objectid);
685 return;
686 }
687
688 switch (objectid) {
689 case BTRFS_ROOT_TREE_OBJECTID:
690 if (type == BTRFS_DEV_ITEM_KEY)
691 fprintf(stream, "DEV_ITEMS");
692 else
693 fprintf(stream, "ROOT_TREE");
694 break;
695 case BTRFS_EXTENT_TREE_OBJECTID:
696 fprintf(stream, "EXTENT_TREE");
697 break;
698 case BTRFS_CHUNK_TREE_OBJECTID:
699 fprintf(stream, "CHUNK_TREE");
700 break;
701 case BTRFS_DEV_TREE_OBJECTID:
702 fprintf(stream, "DEV_TREE");
703 break;
704 case BTRFS_FS_TREE_OBJECTID:
705 fprintf(stream, "FS_TREE");
706 break;
707 case BTRFS_ROOT_TREE_DIR_OBJECTID:
708 fprintf(stream, "ROOT_TREE_DIR");
709 break;
710 case BTRFS_CSUM_TREE_OBJECTID:
711 fprintf(stream, "CSUM_TREE");
712 break;
713 case BTRFS_BALANCE_OBJECTID:
714 fprintf(stream, "BALANCE");
715 break;
716 case BTRFS_ORPHAN_OBJECTID:
717 fprintf(stream, "ORPHAN");
718 break;
719 case BTRFS_TREE_LOG_OBJECTID:
720 fprintf(stream, "TREE_LOG");
721 break;
722 case BTRFS_TREE_LOG_FIXUP_OBJECTID:
723 fprintf(stream, "LOG_FIXUP");
724 break;
725 case BTRFS_TREE_RELOC_OBJECTID:
726 fprintf(stream, "TREE_RELOC");
727 break;
728 case BTRFS_DATA_RELOC_TREE_OBJECTID:
729 fprintf(stream, "DATA_RELOC_TREE");
730 break;
731 case BTRFS_EXTENT_CSUM_OBJECTID:
732 fprintf(stream, "EXTENT_CSUM");
733 break;
734 case BTRFS_FREE_SPACE_OBJECTID:
735 fprintf(stream, "FREE_SPACE");
736 break;
737 case BTRFS_FREE_INO_OBJECTID:
738 fprintf(stream, "FREE_INO");
739 break;
740 case BTRFS_QUOTA_TREE_OBJECTID:
741 fprintf(stream, "QUOTA_TREE");
742 break;
743 case BTRFS_UUID_TREE_OBJECTID:
744 fprintf(stream, "UUID_TREE");
745 break;
746 case BTRFS_FREE_SPACE_TREE_OBJECTID:
747 fprintf(stream, "FREE_SPACE_TREE");
748 break;
749 case BTRFS_MULTIPLE_OBJECTIDS:
750 fprintf(stream, "MULTIPLE");
751 break;
752 case (u64)-1:
753 fprintf(stream, "-1");
754 break;
755 case BTRFS_FIRST_CHUNK_TREE_OBJECTID:
756 if (type == BTRFS_CHUNK_ITEM_KEY) {
757 fprintf(stream, "FIRST_CHUNK_TREE");
758 break;
759 }
760 /* fall-thru */
761 default:
762 fprintf(stream, "%llu", (unsigned long long)objectid);
763 }
764 }
765
766 void btrfs_print_key(struct btrfs_disk_key *disk_key)
767 {
768 u64 objectid = btrfs_disk_key_objectid(disk_key);
769 u8 type = btrfs_disk_key_type(disk_key);
770 u64 offset = btrfs_disk_key_offset(disk_key);
771
772 printf("key (");
773 print_objectid(stdout, objectid, type);
774 printf(" ");
775 print_key_type(stdout, objectid, type);
776 switch (type) {
777 case BTRFS_QGROUP_RELATION_KEY:
778 case BTRFS_QGROUP_INFO_KEY:
779 case BTRFS_QGROUP_LIMIT_KEY:
780 printf(" %llu/%llu)", btrfs_qgroup_level(offset),
781 btrfs_qgroup_subvid(offset));
782 break;
783 case BTRFS_UUID_KEY_SUBVOL:
784 case BTRFS_UUID_KEY_RECEIVED_SUBVOL:
785 printf(" 0x%016llx)", (unsigned long long)offset);
786 break;
787 default:
788 if (offset == (u64)-1)
789 printf(" -1)");
790 else
791 printf(" %llu)", (unsigned long long)offset);
792 break;
793 }
794 }
795
796 static void print_uuid_item(struct extent_buffer *l, unsigned long offset,
797 u32 item_size)
798 {
799 if (item_size & (sizeof(u64) - 1)) {
800 printf("btrfs: uuid item with illegal size %lu!\n",
801 (unsigned long)item_size);
802 return;
803 }
804 while (item_size) {
805 __le64 subvol_id;
806
807 read_extent_buffer(l, &subvol_id, offset, sizeof(u64));
808 printf("\t\tsubvol_id %llu\n",
809 (unsigned long long)le64_to_cpu(subvol_id));
810 item_size -= sizeof(u64);
811 offset += sizeof(u64);
812 }
813 }
814
815 /* Btrfs inode flag stringification helper */
816 #define STRCAT_ONE_INODE_FLAG(flags, name, empty, dst) ({ \
817 if (flags & BTRFS_INODE_##name) { \
818 if (!empty) \
819 strcat(dst, "|"); \
820 strcat(dst, #name); \
821 empty = 0; \
822 } \
823 })
824
825 /*
826 * Caller should ensure sizeof(*ret) >= 102: all charactors plus '|' of
827 * BTRFS_INODE_* flags
828 */
829 static void inode_flags_to_str(u64 flags, char *ret)
830 {
831 int empty = 1;
832
833 STRCAT_ONE_INODE_FLAG(flags, NODATASUM, empty, ret);
834 STRCAT_ONE_INODE_FLAG(flags, NODATACOW, empty, ret);
835 STRCAT_ONE_INODE_FLAG(flags, READONLY, empty, ret);
836 STRCAT_ONE_INODE_FLAG(flags, NOCOMPRESS, empty, ret);
837 STRCAT_ONE_INODE_FLAG(flags, PREALLOC, empty, ret);
838 STRCAT_ONE_INODE_FLAG(flags, SYNC, empty, ret);
839 STRCAT_ONE_INODE_FLAG(flags, IMMUTABLE, empty, ret);
840 STRCAT_ONE_INODE_FLAG(flags, APPEND, empty, ret);
841 STRCAT_ONE_INODE_FLAG(flags, NODUMP, empty, ret);
842 STRCAT_ONE_INODE_FLAG(flags, NOATIME, empty, ret);
843 STRCAT_ONE_INODE_FLAG(flags, DIRSYNC, empty, ret);
844 STRCAT_ONE_INODE_FLAG(flags, COMPRESS, empty, ret);
845 if (empty)
846 strcat(ret, "none");
847 }
848
849 static void print_timespec(struct extent_buffer *eb,
850 struct btrfs_timespec *timespec, const char *prefix,
851 const char *suffix)
852 {
853 struct tm tm;
854 u64 tmp_u64;
855 u32 tmp_u32;
856 time_t tmp_time;
857 char timestamp[256];
858
859 tmp_u64 = btrfs_timespec_sec(eb, timespec);
860 tmp_u32 = btrfs_timespec_nsec(eb, timespec);
861 tmp_time = tmp_u64;
862 localtime_r(&tmp_time, &tm);
863 strftime(timestamp, sizeof(timestamp),
864 "%Y-%m-%d %H:%M:%S", &tm);
865 printf("%s%llu.%u (%s)%s", prefix, (unsigned long long)tmp_u64, tmp_u32,
866 timestamp, suffix);
867 }
868
869 static void print_inode_item(struct extent_buffer *eb,
870 struct btrfs_inode_item *ii)
871 {
872 char flags_str[256];
873
874 memset(flags_str, 0, sizeof(flags_str));
875 inode_flags_to_str(btrfs_inode_flags(eb, ii), flags_str);
876 printf("\t\tinode generation %llu transid %llu size %llu nbytes %llu\n"
877 "\t\tblock group %llu mode %o links %u uid %u gid %u rdev %llu\n"
878 "\t\tsequence %llu flags 0x%llx(%s)\n",
879 (unsigned long long)btrfs_inode_generation(eb, ii),
880 (unsigned long long)btrfs_inode_transid(eb, ii),
881 (unsigned long long)btrfs_inode_size(eb, ii),
882 (unsigned long long)btrfs_inode_nbytes(eb, ii),
883 (unsigned long long)btrfs_inode_block_group(eb,ii),
884 btrfs_inode_mode(eb, ii),
885 btrfs_inode_nlink(eb, ii),
886 btrfs_inode_uid(eb, ii),
887 btrfs_inode_gid(eb, ii),
888 (unsigned long long)btrfs_inode_rdev(eb,ii),
889 (unsigned long long)btrfs_inode_flags(eb,ii),
890 (unsigned long long)btrfs_inode_sequence(eb, ii),
891 flags_str);
892 print_timespec(eb, btrfs_inode_atime(ii), "\t\tatime ", "\n");
893 print_timespec(eb, btrfs_inode_ctime(ii), "\t\tctime ", "\n");
894 print_timespec(eb, btrfs_inode_mtime(ii), "\t\tmtime ", "\n");
895 print_timespec(eb, btrfs_inode_otime(ii), "\t\totime ", "\n");
896 }
897
898 static void print_disk_balance_args(struct btrfs_disk_balance_args *ba)
899 {
900 printf("\t\tprofiles %llu devid %llu target %llu flags %llu\n",
901 (unsigned long long)le64_to_cpu(ba->profiles),
902 (unsigned long long)le64_to_cpu(ba->devid),
903 (unsigned long long)le64_to_cpu(ba->target),
904 (unsigned long long)le64_to_cpu(ba->flags));
905 printf("\t\tusage_min %u usage_max %u pstart %llu pend %llu\n",
906 le32_to_cpu(ba->usage_min),
907 le32_to_cpu(ba->usage_max),
908 (unsigned long long)le64_to_cpu(ba->pstart),
909 (unsigned long long)le64_to_cpu(ba->pend));
910 printf("\t\tvstart %llu vend %llu limit_min %u limit_max %u\n",
911 (unsigned long long)le64_to_cpu(ba->vstart),
912 (unsigned long long)le64_to_cpu(ba->vend),
913 le32_to_cpu(ba->limit_min),
914 le32_to_cpu(ba->limit_max));
915 printf("\t\tstripes_min %u stripes_max %u\n",
916 le32_to_cpu(ba->stripes_min),
917 le32_to_cpu(ba->stripes_max));
918 }
919
920 static void print_balance_item(struct extent_buffer *eb,
921 struct btrfs_balance_item *bi)
922 {
923 printf("\t\tbalance status flags %llu\n",
924 btrfs_balance_item_flags(eb, bi));
925
926 printf("\t\tDATA\n");
927 print_disk_balance_args(btrfs_balance_item_data(eb, bi));
928 printf("\t\tMETADATA\n");
929 print_disk_balance_args(btrfs_balance_item_meta(eb, bi));
930 printf("\t\tSYSTEM\n");
931 print_disk_balance_args(btrfs_balance_item_sys(eb, bi));
932 }
933
934 static void print_dev_stats(struct extent_buffer *eb,
935 struct btrfs_dev_stats_item *stats, u32 size)
936 {
937 int i;
938 u32 known = BTRFS_DEV_STAT_VALUES_MAX * sizeof(__le64);
939 __le64 *values = btrfs_dev_stats_values(eb, stats);
940
941 printf("\t\tdevice stats\n");
942 printf("\t\twrite_errs %llu read_errs %llu flush_errs %llu corruption_errs %llu generation %llu\n",
943 (unsigned long long)le64_to_cpu(values[BTRFS_DEV_STAT_WRITE_ERRS]),
944 (unsigned long long)le64_to_cpu(values[BTRFS_DEV_STAT_READ_ERRS]),
945 (unsigned long long)le64_to_cpu(values[BTRFS_DEV_STAT_FLUSH_ERRS]),
946 (unsigned long long)le64_to_cpu(values[BTRFS_DEV_STAT_CORRUPTION_ERRS]),
947 (unsigned long long)le64_to_cpu(values[BTRFS_DEV_STAT_GENERATION_ERRS]));
948
949 if (known < size) {
950 printf("\t\tunknown stats item bytes %u", size - known);
951 for (i = BTRFS_DEV_STAT_VALUES_MAX; i * sizeof(__le64) < size; i++) {
952 printf("\t\tunknown item %u offset %zu value %llu\n",
953 i, i * sizeof(__le64),
954 (unsigned long long)le64_to_cpu(values[i]));
955 }
956 }
957 }
958
959 /* Caller must ensure sizeof(*ret) >= 14 "WRITTEN|RELOC" */
960 static void header_flags_to_str(u64 flags, char *ret)
961 {
962 int empty = 1;
963
964 if (flags & BTRFS_HEADER_FLAG_WRITTEN) {
965 empty = 0;
966 strcpy(ret, "WRITTEN");
967 }
968 if (flags & BTRFS_HEADER_FLAG_RELOC) {
969 if (!empty)
970 strcat(ret, "|");
971 strcat(ret, "RELOC");
972 }
973 }
974
975 void btrfs_print_leaf(struct btrfs_root *root, struct extent_buffer *eb)
976 {
977 struct btrfs_item *item;
978 struct btrfs_disk_key disk_key;
979 char flags_str[128];
980 u32 i;
981 u32 nr;
982 u64 flags;
983 u8 backref_rev;
984
985 flags = btrfs_header_flags(eb) & ~BTRFS_BACKREF_REV_MASK;
986 backref_rev = btrfs_header_flags(eb) >> BTRFS_BACKREF_REV_SHIFT;
987 header_flags_to_str(flags, flags_str);
988 nr = btrfs_header_nritems(eb);
989
990 printf("leaf %llu items %d free space %d generation %llu owner %llu\n",
991 (unsigned long long)btrfs_header_bytenr(eb), nr,
992 btrfs_leaf_free_space(root, eb),
993 (unsigned long long)btrfs_header_generation(eb),
994 (unsigned long long)btrfs_header_owner(eb));
995 printf("leaf %llu flags 0x%llx(%s) backref revision %d\n",
996 btrfs_header_bytenr(eb), flags, flags_str, backref_rev);
997 print_uuids(eb);
998 fflush(stdout);
999
1000 for (i = 0; i < nr; i++) {
1001 u32 item_size;
1002 void *ptr;
1003 u64 objectid;
1004 u32 type;
1005 u64 offset;
1006 char flags_str[256];
1007 char uuid_str[BTRFS_UUID_UNPARSED_SIZE];
1008 u8 uuid[BTRFS_UUID_SIZE];
1009
1010 item = btrfs_item_nr(i);
1011 item_size = btrfs_item_size(eb, item);
1012 /* Untyped extraction of slot from btrfs_item_ptr */
1013 ptr = btrfs_item_ptr(eb, i, void*);
1014
1015 btrfs_item_key(eb, &disk_key, i);
1016 objectid = btrfs_disk_key_objectid(&disk_key);
1017 type = btrfs_disk_key_type(&disk_key);
1018 offset = btrfs_disk_key_offset(&disk_key);
1019
1020 printf("\titem %d ", i);
1021 btrfs_print_key(&disk_key);
1022 printf(" itemoff %d itemsize %d\n",
1023 btrfs_item_offset(eb, item),
1024 btrfs_item_size(eb, item));
1025
1026 if (type == 0 && objectid == BTRFS_FREE_SPACE_OBJECTID)
1027 print_free_space_header(eb, i);
1028
1029 switch (type) {
1030 case BTRFS_INODE_ITEM_KEY:
1031 print_inode_item(eb, ptr);
1032 break;
1033 case BTRFS_INODE_REF_KEY:
1034 print_inode_ref_item(eb, item_size, ptr);
1035 break;
1036 case BTRFS_INODE_EXTREF_KEY:
1037 print_inode_extref_item(eb, item_size, ptr);
1038 break;
1039 case BTRFS_DIR_ITEM_KEY:
1040 case BTRFS_DIR_INDEX_KEY:
1041 case BTRFS_XATTR_ITEM_KEY:
1042 print_dir_item(eb, item_size, ptr);
1043 break;
1044 case BTRFS_DIR_LOG_INDEX_KEY:
1045 case BTRFS_DIR_LOG_ITEM_KEY: {
1046 struct btrfs_dir_log_item *dlog;
1047
1048 dlog = btrfs_item_ptr(eb, i, struct btrfs_dir_log_item);
1049 printf("\t\tdir log end %Lu\n",
1050 (unsigned long long)btrfs_dir_log_end(eb, dlog));
1051 break;
1052 }
1053 case BTRFS_ORPHAN_ITEM_KEY:
1054 printf("\t\torphan item\n");
1055 break;
1056 case BTRFS_ROOT_ITEM_KEY:
1057 print_root(eb, i);
1058 break;
1059 case BTRFS_ROOT_REF_KEY:
1060 print_root_ref(eb, i, "ref");
1061 break;
1062 case BTRFS_ROOT_BACKREF_KEY:
1063 print_root_ref(eb, i, "backref");
1064 break;
1065 case BTRFS_EXTENT_ITEM_KEY:
1066 print_extent_item(eb, i, 0);
1067 break;
1068 case BTRFS_METADATA_ITEM_KEY:
1069 print_extent_item(eb, i, 1);
1070 break;
1071 case BTRFS_TREE_BLOCK_REF_KEY:
1072 printf("\t\ttree block backref\n");
1073 break;
1074 case BTRFS_SHARED_BLOCK_REF_KEY:
1075 printf("\t\tshared block backref\n");
1076 break;
1077 case BTRFS_EXTENT_DATA_REF_KEY: {
1078 struct btrfs_extent_data_ref *dref;
1079
1080 dref = btrfs_item_ptr(eb, i, struct btrfs_extent_data_ref);
1081 printf("\t\textent data backref root %llu "
1082 "objectid %llu offset %llu count %u\n",
1083 (unsigned long long)btrfs_extent_data_ref_root(eb, dref),
1084 (unsigned long long)btrfs_extent_data_ref_objectid(eb, dref),
1085 (unsigned long long)btrfs_extent_data_ref_offset(eb, dref),
1086 btrfs_extent_data_ref_count(eb, dref));
1087 break;
1088 }
1089 case BTRFS_SHARED_DATA_REF_KEY: {
1090 struct btrfs_shared_data_ref *sref;
1091 sref = btrfs_item_ptr(eb, i, struct btrfs_shared_data_ref);
1092 printf("\t\tshared data backref count %u\n",
1093 btrfs_shared_data_ref_count(eb, sref));
1094 break;
1095 }
1096 case BTRFS_EXTENT_REF_V0_KEY:
1097 #ifdef BTRFS_COMPAT_EXTENT_TREE_V0
1098 print_extent_ref_v0(eb, i);
1099 #else
1100 BUG();
1101 #endif
1102 break;
1103 case BTRFS_CSUM_ITEM_KEY:
1104 printf("\t\tcsum item\n");
1105 break;
1106 case BTRFS_EXTENT_CSUM_KEY:
1107 printf("\t\textent csum item\n");
1108 break;
1109 case BTRFS_EXTENT_DATA_KEY:
1110 print_file_extent_item(eb, item, i, ptr);
1111 break;
1112 case BTRFS_BLOCK_GROUP_ITEM_KEY: {
1113 struct btrfs_block_group_item bg_item;
1114
1115 read_extent_buffer(eb, &bg_item, (unsigned long)ptr,
1116 sizeof(bg_item));
1117 memset(flags_str, 0, sizeof(flags_str));
1118 bg_flags_to_str(btrfs_block_group_flags(&bg_item),
1119 flags_str);
1120 printf("\t\tblock group used %llu chunk_objectid %llu flags %s\n",
1121 (unsigned long long)btrfs_block_group_used(&bg_item),
1122 (unsigned long long)btrfs_block_group_chunk_objectid(&bg_item),
1123 flags_str);
1124 break;
1125 }
1126 case BTRFS_FREE_SPACE_INFO_KEY: {
1127 struct btrfs_free_space_info *free_info;
1128
1129 free_info = btrfs_item_ptr(eb, i, struct btrfs_free_space_info);
1130 printf("\t\tfree space info extent count %u flags %u\n",
1131 (unsigned)btrfs_free_space_extent_count(eb, free_info),
1132 (unsigned)btrfs_free_space_flags(eb, free_info));
1133 break;
1134 }
1135 case BTRFS_FREE_SPACE_EXTENT_KEY:
1136 printf("\t\tfree space extent\n");
1137 break;
1138 case BTRFS_FREE_SPACE_BITMAP_KEY:
1139 printf("\t\tfree space bitmap\n");
1140 break;
1141 case BTRFS_CHUNK_ITEM_KEY:
1142 print_chunk(eb, ptr);
1143 break;
1144 case BTRFS_DEV_ITEM_KEY:
1145 print_dev_item(eb, ptr);
1146 break;
1147 case BTRFS_DEV_EXTENT_KEY: {
1148 struct btrfs_dev_extent *dev_extent;
1149
1150 dev_extent = btrfs_item_ptr(eb, i,
1151 struct btrfs_dev_extent);
1152 read_extent_buffer(eb, uuid,
1153 (unsigned long)btrfs_dev_extent_chunk_tree_uuid(dev_extent),
1154 BTRFS_UUID_SIZE);
1155 uuid_unparse(uuid, uuid_str);
1156 printf("\t\tdev extent chunk_tree %llu\n"
1157 "\t\tchunk_objectid %llu chunk_offset %llu "
1158 "length %llu\n"
1159 "\t\tchunk_tree_uuid %s\n",
1160 (unsigned long long)
1161 btrfs_dev_extent_chunk_tree(eb, dev_extent),
1162 (unsigned long long)
1163 btrfs_dev_extent_chunk_objectid(eb, dev_extent),
1164 (unsigned long long)
1165 btrfs_dev_extent_chunk_offset(eb, dev_extent),
1166 (unsigned long long)
1167 btrfs_dev_extent_length(eb, dev_extent),
1168 uuid_str);
1169 break;
1170 }
1171 case BTRFS_QGROUP_STATUS_KEY: {
1172 struct btrfs_qgroup_status_item *qg_status;
1173
1174 qg_status = btrfs_item_ptr(eb, i,
1175 struct btrfs_qgroup_status_item);
1176 memset(flags_str, 0, sizeof(flags_str));
1177 qgroup_flags_to_str(btrfs_qgroup_status_flags(eb, qg_status),
1178 flags_str);
1179 printf("\t\tversion %llu generation %llu flags %s "
1180 "scan %lld\n",
1181 (unsigned long long)
1182 btrfs_qgroup_status_version(eb, qg_status),
1183 (unsigned long long)
1184 btrfs_qgroup_status_generation(eb, qg_status),
1185 flags_str,
1186 (unsigned long long)
1187 btrfs_qgroup_status_rescan(eb, qg_status));
1188 break;
1189 }
1190 case BTRFS_QGROUP_RELATION_KEY:
1191 break;
1192 case BTRFS_QGROUP_INFO_KEY: {
1193 struct btrfs_qgroup_info_item *qg_info;
1194
1195 qg_info = btrfs_item_ptr(eb, i,
1196 struct btrfs_qgroup_info_item);
1197 printf("\t\tgeneration %llu\n"
1198 "\t\treferenced %llu referenced_compressed %llu\n"
1199 "\t\texclusive %llu exclusive_compressed %llu\n",
1200 (unsigned long long)
1201 btrfs_qgroup_info_generation(eb, qg_info),
1202 (unsigned long long)
1203 btrfs_qgroup_info_referenced(eb, qg_info),
1204 (unsigned long long)
1205 btrfs_qgroup_info_referenced_compressed(eb,
1206 qg_info),
1207 (unsigned long long)
1208 btrfs_qgroup_info_exclusive(eb, qg_info),
1209 (unsigned long long)
1210 btrfs_qgroup_info_exclusive_compressed(eb,
1211 qg_info));
1212 break;
1213 }
1214 case BTRFS_QGROUP_LIMIT_KEY: {
1215 struct btrfs_qgroup_limit_item *qg_limit;
1216
1217 qg_limit = btrfs_item_ptr(eb, i,
1218 struct btrfs_qgroup_limit_item);
1219 printf("\t\tflags %llx\n"
1220 "\t\tmax_referenced %lld max_exclusive %lld\n"
1221 "\t\trsv_referenced %lld rsv_exclusive %lld\n",
1222 (unsigned long long)
1223 btrfs_qgroup_limit_flags(eb, qg_limit),
1224 (long long)
1225 btrfs_qgroup_limit_max_referenced(eb, qg_limit),
1226 (long long)
1227 btrfs_qgroup_limit_max_exclusive(eb, qg_limit),
1228 (long long)
1229 btrfs_qgroup_limit_rsv_referenced(eb, qg_limit),
1230 (long long)
1231 btrfs_qgroup_limit_rsv_exclusive(eb, qg_limit));
1232 break;
1233 }
1234 case BTRFS_UUID_KEY_SUBVOL:
1235 case BTRFS_UUID_KEY_RECEIVED_SUBVOL:
1236 print_uuid_item(eb, btrfs_item_ptr_offset(eb, i),
1237 btrfs_item_size_nr(eb, i));
1238 break;
1239 case BTRFS_STRING_ITEM_KEY: {
1240 const char *str = eb->data + btrfs_item_ptr_offset(eb, i);
1241
1242 printf("\t\titem data %.*s\n", item_size, str);
1243 break;
1244 }
1245 case BTRFS_PERSISTENT_ITEM_KEY:
1246 printf("\t\tpersistent item objectid ");
1247 print_objectid(stdout, objectid, BTRFS_PERSISTENT_ITEM_KEY);
1248 printf(" offset %llu\n", (unsigned long long)offset);
1249 switch (objectid) {
1250 case BTRFS_DEV_STATS_OBJECTID:
1251 print_dev_stats(eb, ptr, item_size);
1252 break;
1253 default:
1254 printf("\t\tunknown persistent item objectid %llu\n",
1255 objectid);
1256 }
1257 break;
1258 case BTRFS_TEMPORARY_ITEM_KEY:
1259 printf("\t\ttemporary item objectid ");
1260 print_objectid(stdout, objectid, BTRFS_TEMPORARY_ITEM_KEY);
1261 printf(" offset %llu\n", (unsigned long long)offset);
1262 switch (objectid) {
1263 case BTRFS_BALANCE_OBJECTID:
1264 print_balance_item(eb, ptr);
1265 break;
1266 default:
1267 printf("\t\tunknown temporary item objectid %llu\n",
1268 objectid);
1269 }
1270 break;
1271 };
1272 fflush(stdout);
1273 }
1274 }
1275
1276 void btrfs_print_tree(struct btrfs_root *root, struct extent_buffer *eb, int follow)
1277 {
1278 u32 i;
1279 u32 nr;
1280 u32 size;
1281 struct btrfs_disk_key disk_key;
1282 struct btrfs_key key;
1283 struct extent_buffer *next;
1284
1285 if (!eb)
1286 return;
1287 nr = btrfs_header_nritems(eb);
1288 if (btrfs_is_leaf(eb)) {
1289 btrfs_print_leaf(root, eb);
1290 return;
1291 }
1292 printf("node %llu level %d items %d free %u generation %llu owner %llu\n",
1293 (unsigned long long)eb->start,
1294 btrfs_header_level(eb), nr,
1295 (u32)BTRFS_NODEPTRS_PER_BLOCK(root) - nr,
1296 (unsigned long long)btrfs_header_generation(eb),
1297 (unsigned long long)btrfs_header_owner(eb));
1298 print_uuids(eb);
1299 fflush(stdout);
1300 size = root->fs_info->nodesize;
1301 for (i = 0; i < nr; i++) {
1302 u64 blocknr = btrfs_node_blockptr(eb, i);
1303 btrfs_node_key(eb, &disk_key, i);
1304 btrfs_disk_key_to_cpu(&key, &disk_key);
1305 printf("\t");
1306 btrfs_print_key(&disk_key);
1307 printf(" block %llu (%llu) gen %llu\n",
1308 (unsigned long long)blocknr,
1309 (unsigned long long)blocknr / size,
1310 (unsigned long long)btrfs_node_ptr_generation(eb, i));
1311 fflush(stdout);
1312 }
1313 if (!follow)
1314 return;
1315
1316 for (i = 0; i < nr; i++) {
1317 next = read_tree_block(root->fs_info,
1318 btrfs_node_blockptr(eb, i), size,
1319 btrfs_node_ptr_generation(eb, i));
1320 if (!extent_buffer_uptodate(next)) {
1321 fprintf(stderr, "failed to read %llu in tree %llu\n",
1322 (unsigned long long)btrfs_node_blockptr(eb, i),
1323 (unsigned long long)btrfs_header_owner(eb));
1324 continue;
1325 }
1326 if (btrfs_is_leaf(next) && btrfs_header_level(eb) != 1) {
1327 warning(
1328 "eb corrupted: item %d eb level %d next level %d, skipping the rest",
1329 i, btrfs_header_level(next),
1330 btrfs_header_level(eb));
1331 goto out;
1332 }
1333 if (btrfs_header_level(next) != btrfs_header_level(eb) - 1) {
1334 warning(
1335 "eb corrupted: item %d eb level %d next level %d, skipping the rest",
1336 i, btrfs_header_level(next),
1337 btrfs_header_level(eb));
1338 goto out;
1339 }
1340 btrfs_print_tree(root, next, 1);
1341 free_extent_buffer(next);
1342 }
1343
1344 return;
1345
1346 out:
1347 free_extent_buffer(next);
1348 }
(deprecated) Btrfs progs developments and patch integration