This repository has been archived by the owner on Nov 15, 2022. It is now read-only.
-
Notifications
You must be signed in to change notification settings - Fork 44
/
Copy pathbtrfs.c
1301 lines (1092 loc) · 31.3 KB
/
btrfs.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/*
* Copyright (c) 2016 Jeff Mahoney <jeffm@suse.com>
* Copyright (c) 2016-2018 The strace developers.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "defs.h"
#ifdef HAVE_LINUX_BTRFS_H
#include DEF_MPERS_TYPE(struct_btrfs_ioctl_dev_replace_args)
#include DEF_MPERS_TYPE(struct_btrfs_ioctl_send_args)
#include DEF_MPERS_TYPE(struct_btrfs_ioctl_received_subvol_args)
#include DEF_MPERS_TYPE(struct_btrfs_ioctl_vol_args_v2)
# include <linux/btrfs.h>
typedef struct btrfs_ioctl_dev_replace_args
struct_btrfs_ioctl_dev_replace_args;
typedef struct btrfs_ioctl_send_args
struct_btrfs_ioctl_send_args;
typedef struct btrfs_ioctl_received_subvol_args
struct_btrfs_ioctl_received_subvol_args;
typedef struct btrfs_ioctl_vol_args_v2
struct_btrfs_ioctl_vol_args_v2;
#endif /* HAVE_LINUX_BTRFS_H */
#include MPERS_DEFS
#ifdef HAVE_LINUX_BTRFS_H
#include "print_fields.h"
#include <linux/fs.h>
/*
* Prior to Linux 3.12, the BTRFS_IOC_DEFAULT_SUBVOL used u64 in
* its definition, which isn't exported by the kernel.
*/
typedef __u64 u64;
#ifndef HAVE_STRUCT_BTRFS_IOCTL_FEATURE_FLAGS_COMPAT_FLAGS
struct btrfs_ioctl_feature_flags {
uint64_t compat_flags;
uint64_t compat_ro_flags;
uint64_t incompat_flags;
};
#endif
#ifndef HAVE_STRUCT_BTRFS_IOCTL_DEFRAG_RANGE_ARGS_START
struct btrfs_ioctl_defrag_range_args {
uint64_t start;
uint64_t len;
uint64_t flags;
uint32_t extent_thresh;
uint32_t compress_type;
uint32_t unused[4];
};
#endif
#ifndef BTRFS_LABEL_SIZE
# define BTRFS_LABEL_SIZE 256
#endif
#ifndef BTRFS_IOC_QUOTA_RESCAN
struct btrfs_ioctl_quota_rescan_args {
uint64_t flags, progress, reserved[6];
};
# define BTRFS_IOC_QUOTA_RESCAN _IOW(BTRFS_IOCTL_MAGIC, 44, \
struct btrfs_ioctl_quota_rescan_args)
# define BTRFS_IOC_QUOTA_RESCAN_STATUS _IOR(BTRFS_IOCTL_MAGIC, 45, \
struct btrfs_ioctl_quota_rescan_args)
#endif
#ifndef BTRFS_IOC_QUOTA_RESCAN_WAIT
# define BTRFS_IOC_QUOTA_RESCAN_WAIT _IO(BTRFS_IOCTL_MAGIC, 46)
#endif
#ifndef BTRFS_IOC_GET_FEATURES
# define BTRFS_IOC_GET_FEATURES _IOR(BTRFS_IOCTL_MAGIC, 57, \
struct btrfs_ioctl_feature_flags)
# define BTRFS_IOC_SET_FEATURES _IOW(BTRFS_IOCTL_MAGIC, 57, \
struct btrfs_ioctl_feature_flags[2])
# define BTRFS_IOC_GET_SUPPORTED_FEATURES _IOR(BTRFS_IOCTL_MAGIC, 57, \
struct btrfs_ioctl_feature_flags[3])
#endif
#ifndef BTRFS_IOC_TREE_SEARCH_V2
# define BTRFS_IOC_TREE_SEARCH_V2 _IOWR(BTRFS_IOCTL_MAGIC, 17, \
struct btrfs_ioctl_search_args_v2)
struct btrfs_ioctl_search_args_v2 {
struct btrfs_ioctl_search_key key; /* in/out - search parameters */
uint64_t buf_size; /* in - size of buffer
* out - on EOVERFLOW: needed size
* to store item */
uint64_t buf[0]; /* out - found items */
};
#endif
#include "xlat/btrfs_balance_args.h"
#include "xlat/btrfs_balance_ctl_cmds.h"
#include "xlat/btrfs_balance_flags.h"
#include "xlat/btrfs_balance_state.h"
#include "xlat/btrfs_compress_types.h"
#include "xlat/btrfs_cont_reading_from_srcdev_mode.h"
#include "xlat/btrfs_defrag_flags.h"
#include "xlat/btrfs_dev_replace_cmds.h"
#include "xlat/btrfs_dev_replace_results.h"
#include "xlat/btrfs_dev_replace_state.h"
#include "xlat/btrfs_dev_stats_flags.h"
#include "xlat/btrfs_dev_stats_values.h"
#include "xlat/btrfs_features_compat.h"
#include "xlat/btrfs_features_compat_ro.h"
#include "xlat/btrfs_features_incompat.h"
#include "xlat/btrfs_key_types.h"
#include "xlat/btrfs_logical_ino_args_flags.h"
#include "xlat/btrfs_qgroup_ctl_cmds.h"
#include "xlat/btrfs_qgroup_inherit_flags.h"
#include "xlat/btrfs_qgroup_limit_flags.h"
#include "xlat/btrfs_qgroup_status_flags.h"
#include "xlat/btrfs_scrub_flags.h"
#include "xlat/btrfs_send_flags.h"
#include "xlat/btrfs_snap_flags_v2.h"
#include "xlat/btrfs_space_info_flags.h"
#include "xlat/btrfs_tree_objectids.h"
static inline char
prnibble(char v)
{
if (v >= 10)
return 'a' + (v - 10);
return '0' + v;
}
/* 8-4-4-4-12 = 36 characters */
#define UUID_STRING_SIZE 36
/* Formats uuid, returns 0 if it's all zeroes */
static int
btrfs_unparse_uuid(unsigned char *uuid, char *out)
{
int i;
int ret = 0;
for (i = 0; i < BTRFS_UUID_SIZE; i++) {
if (i == 4 || i == 6 || i == 8 || i == 10)
*out++ = '-';
*out++ = prnibble(uuid[i] >> 4);
*out++ = prnibble(uuid[i] & 0xf);
if (uuid[i])
ret = 1;
}
*out = '\0';
return ret;
}
static void
btrfs_print_balance_args(const char *name, const struct btrfs_balance_args *bba)
{
tprintf(", %s=", name);
PRINT_FIELD_FLAGS("{", *bba, profiles, btrfs_space_info_flags,
"BTRFS_BLOCK_GROUP_???");
PRINT_FIELD_U64(", ", *bba, usage);
PRINT_FIELD_DEV(", ", *bba, devid);
PRINT_FIELD_U64(", ", *bba, pstart);
PRINT_FIELD_U64(", ", *bba, pend);
PRINT_FIELD_U64(", ", *bba, vstart);
PRINT_FIELD_U64(", ", *bba, vend);
PRINT_FIELD_U64(", ", *bba, target);
PRINT_FIELD_FLAGS(", ", *bba, flags, btrfs_balance_args,
"BTRFS_BALANCE_ARGS_???");
tprints("}");
}
static void
btrfs_print_balance(struct tcb *const tcp, const kernel_ulong_t arg, bool out)
{
struct btrfs_ioctl_balance_args balance_args;
if (umove_or_printaddr(tcp, arg, &balance_args))
return;
PRINT_FIELD_FLAGS("{", balance_args, flags, btrfs_balance_flags,
"BTRFS_BALANCE_???");
if (out)
PRINT_FIELD_FLAGS(", ", balance_args, state,
btrfs_balance_state,
"BTRFS_BALANCE_STATE_???");
if (balance_args.flags & BTRFS_BALANCE_DATA)
btrfs_print_balance_args("data", &balance_args.data);
if (balance_args.flags & BTRFS_BALANCE_METADATA)
btrfs_print_balance_args("meta", &balance_args.meta);
if (balance_args.flags & BTRFS_BALANCE_SYSTEM)
btrfs_print_balance_args("sys", &balance_args.sys);
tprints("}");
}
static void
btrfs_print_features(const struct btrfs_ioctl_feature_flags *flags)
{
PRINT_FIELD_FLAGS("{", *flags, compat_flags, btrfs_features_compat,
"BTRFS_FEATURE_COMPAT_???");
PRINT_FIELD_FLAGS(", ", *flags, compat_ro_flags,
btrfs_features_compat_ro,
"BTRFS_FEATURE_COMPAT_RO_???");
PRINT_FIELD_FLAGS(", ", *flags, incompat_flags, btrfs_features_incompat,
"BTRFS_FEATURE_INCOMPAT_???");
tprints("}");
}
static void
btrfs_print_qgroup_limit(const struct btrfs_qgroup_limit *lim)
{
PRINT_FIELD_FLAGS(", lim={", *lim, flags, btrfs_qgroup_limit_flags,
"BTRFS_QGROUP_LIMIT_???");
PRINT_FIELD_U(", ", *lim, max_rfer);
PRINT_FIELD_U(", ", *lim, max_excl);
PRINT_FIELD_U(", ", *lim, rsv_rfer);
PRINT_FIELD_U(", ", *lim, rsv_excl);
tprints("}");
}
#define btrfs_print_key_type(prefix_, where_, field_) \
PRINT_FIELD_XVAL_U((prefix_), (where_), field_, btrfs_key_types, NULL)
#define btrfs_print_objectid(prefix_, where_, field_) \
PRINT_FIELD_XVAL_U((prefix_), (where_), field_, btrfs_tree_objectids, \
NULL)
static void
btrfs_print_data_container_header(const struct btrfs_data_container *container)
{
PRINT_FIELD_U("{", *container, bytes_left);
PRINT_FIELD_U(", ", *container, bytes_missing);
PRINT_FIELD_U(", ", *container, elem_cnt);
PRINT_FIELD_U(", ", *container, elem_missed);
}
static void
btrfs_print_data_container_footer(void)
{
tprints("}");
}
static bool
print_btrfs_data_container_logical_ino(struct tcb *tcp, void *elem_buf,
size_t elem_size, void *data)
{
const struct {
uint64_t inum;
uint64_t offset;
uint64_t root;
} *const record = elem_buf;
PRINT_FIELD_U("{", *record, inum);
PRINT_FIELD_U(", ", *record, offset);
PRINT_FIELD_U(", ", *record, root);
tprints("}");
return true;
}
static void
btrfs_print_logical_ino_container(struct tcb *tcp,
const uint64_t inodes_addr)
{
struct btrfs_data_container container;
if (umove_or_printaddr(tcp, inodes_addr, &container))
return;
btrfs_print_data_container_header(&container);
if (abbrev(tcp)) {
tprints(", ...");
} else {
const uint64_t val_addr =
inodes_addr + offsetof(typeof(container), val);
uint64_t record[3];
tprints(", val=");
print_array(tcp, val_addr, container.elem_cnt / 3,
record, sizeof(record),
tfetch_mem,
print_btrfs_data_container_logical_ino, 0);
}
btrfs_print_data_container_footer();
}
static bool
print_btrfs_data_container_ino_path(struct tcb *tcp, void *elem_buf,
size_t elem_size, void *data)
{
const uint64_t *const offset = elem_buf;
const uint64_t *const val_addr = data;
printpath(tcp, *val_addr + *offset);
return true;
}
static void
btrfs_print_ino_path_container(struct tcb *tcp,
const uint64_t fspath_addr)
{
struct btrfs_data_container container;
if (umove_or_printaddr(tcp, fspath_addr, &container))
return;
btrfs_print_data_container_header(&container);
if (abbrev(tcp)) {
tprints(", ...");
} else {
uint64_t val_addr =
fspath_addr + offsetof(typeof(container), val);
uint64_t offset;
tprints(", val=");
print_array(tcp, val_addr, container.elem_cnt,
&offset, sizeof(offset),
tfetch_mem,
print_btrfs_data_container_ino_path, &val_addr);
}
btrfs_print_data_container_footer();
}
static void
btrfs_print_qgroup_inherit(struct tcb *const tcp, const kernel_ulong_t qgi_addr)
{
struct btrfs_qgroup_inherit inherit;
if (umove_or_printaddr(tcp, qgi_addr, &inherit))
return;
PRINT_FIELD_FLAGS("{", inherit, flags, btrfs_qgroup_inherit_flags,
"BTRFS_QGROUP_INHERIT_???");
PRINT_FIELD_U(", ", inherit, num_qgroups);
PRINT_FIELD_U(", ", inherit, num_ref_copies);
PRINT_FIELD_U(", ", inherit, num_excl_copies);
btrfs_print_qgroup_limit(&inherit.lim);
if (abbrev(tcp)) {
tprints(", ...");
} else {
uint64_t record;
tprints(", qgroups=");
print_array(tcp, qgi_addr + offsetof(typeof(inherit), qgroups),
inherit.num_qgroups, &record, sizeof(record),
tfetch_mem, print_uint64_array_member, 0);
}
tprints("}");
}
static void
btrfs_print_tree_search(struct tcb *tcp, struct btrfs_ioctl_search_key *key,
uint64_t buf_addr, uint64_t buf_size, bool print_size)
{
if (entering(tcp)) {
btrfs_print_objectid("{key={", *key, tree_id);
if (key->min_objectid != BTRFS_FIRST_FREE_OBJECTID ||
!abbrev(tcp))
btrfs_print_objectid(", ", *key, min_objectid);
if (key->max_objectid != BTRFS_LAST_FREE_OBJECTID ||
!abbrev(tcp))
btrfs_print_objectid(", ", *key, max_objectid);
PRINT_FIELD_U64(", ", *key, min_offset);
PRINT_FIELD_U64(", ", *key, max_offset);
PRINT_FIELD_U64(", ", *key, min_transid);
PRINT_FIELD_U64(", ", *key, max_transid);
btrfs_print_key_type(", ", *key, min_type);
btrfs_print_key_type(", ", *key, max_type);
PRINT_FIELD_U(", ", *key, nr_items);
tprints("}");
if (print_size)
tprintf(", buf_size=%" PRIu64, buf_size);
tprints("}");
} else {
PRINT_FIELD_U("{key={", *key, nr_items);
tprints("}");
if (print_size)
tprintf(", buf_size=%" PRIu64, buf_size);
if (abbrev(tcp)) {
tprints(", ...");
} else {
uint64_t i;
uint64_t off = 0;
tprints(", buf=[");
for (i = 0; i < key->nr_items; i++) {
struct btrfs_ioctl_search_header sh;
uint64_t addr = buf_addr + off;
if (i)
tprints(", ");
if (i > max_strlen) {
tprints("...");
break;
}
if (umove(tcp, addr, &sh)) {
tprints("...");
printaddr_comment(addr);
break;
}
PRINT_FIELD_U("{", sh, transid);
btrfs_print_objectid(", ", sh, objectid);
PRINT_FIELD_U(", ", sh, offset);
btrfs_print_key_type(", ", sh, type);
PRINT_FIELD_U(", ", sh, len);
tprints("}");
off += sizeof(sh) + sh.len;
}
tprints("]");
}
tprints("}");
}
}
static bool
print_objectid_callback(struct tcb *tcp, void *elem_buf,
size_t elem_size, void *data)
{
printxvals_ex(*(uint64_t *) elem_buf, NULL, XLAT_STYLE_FMT_U,
btrfs_tree_objectids, NULL);
return true;
}
static bool
print_btrfs_ioctl_space_info(struct tcb *tcp, void *elem_buf,
size_t elem_size, void *data)
{
const struct btrfs_ioctl_space_info *info = elem_buf;
PRINT_FIELD_FLAGS("{", *info, flags, btrfs_space_info_flags,
"BTRFS_SPACE_INFO_???");
PRINT_FIELD_U(", ", *info, total_bytes);
PRINT_FIELD_U(", ", *info, used_bytes);
tprints("}");
return true;
}
static void
print_btrfs_timespec(const char *prefix, uint64_t sec, uint32_t nsec)
{
tprintf("%s{sec=%" PRIu64 ", nsec=%u}", prefix, sec, nsec);
tprints_comment(sprinttime_nsec(sec, nsec));
}
MPERS_PRINTER_DECL(int, btrfs_ioctl,
struct tcb *const tcp, const unsigned int code,
const kernel_ulong_t arg)
{
switch (code) {
/* Take no arguments; command only. */
case BTRFS_IOC_TRANS_START:
case BTRFS_IOC_TRANS_END:
case BTRFS_IOC_SYNC:
case BTRFS_IOC_SCRUB_CANCEL:
case BTRFS_IOC_QUOTA_RESCAN_WAIT:
/*
* The codes for these ioctls are based on each accepting a
* vol_args but none of them actually consume an argument.
*/
case BTRFS_IOC_DEFRAG:
case BTRFS_IOC_BALANCE:
break;
/* takes a signed int */
case BTRFS_IOC_BALANCE_CTL:
tprints(", ");
printxval(btrfs_balance_ctl_cmds, arg, "BTRFS_BALANCE_CTL_???");
break;
/* returns a 64 */
case BTRFS_IOC_START_SYNC: /* R */
if (entering(tcp))
return 0;
ATTRIBUTE_FALLTHROUGH;
/* takes a u64 */
case BTRFS_IOC_DEFAULT_SUBVOL: /* W */
case BTRFS_IOC_WAIT_SYNC: /* W */
tprints(", ");
printnum_int64(tcp, arg, "%" PRIu64);
break;
/* u64 but describe a flags bitfield; we can make that symbolic */
case BTRFS_IOC_SUBVOL_GETFLAGS: { /* R */
uint64_t flags;
if (entering(tcp))
return 0;
tprints(", ");
if (umove_or_printaddr(tcp, arg, &flags))
break;
printflags64(btrfs_snap_flags_v2, flags, "BTRFS_SUBVOL_???");
break;
}
case BTRFS_IOC_SUBVOL_SETFLAGS: { /* W */
uint64_t flags;
tprints(", ");
if (umove_or_printaddr(tcp, arg, &flags))
break;
printflags64(btrfs_snap_flags_v2, flags, "BTRFS_SUBVOL_???");
break;
}
/* More complex types */
case BTRFS_IOC_BALANCE_V2: /* RW */
if (entering(tcp)) {
tprints(", ");
btrfs_print_balance(tcp, arg, false);
return 0;
}
if (syserror(tcp))
break;
tprints(" => ");
btrfs_print_balance(tcp, arg, true);
break;
case BTRFS_IOC_BALANCE_PROGRESS: /* R */
if (entering(tcp))
return 0;
tprints(", ");
btrfs_print_balance(tcp, arg, true);
break;
case BTRFS_IOC_DEFRAG_RANGE: { /* W */
struct btrfs_ioctl_defrag_range_args args;
tprints(", ");
if (umove_or_printaddr(tcp, arg, &args))
break;
PRINT_FIELD_U("{", args, start);
PRINT_FIELD_U64(", ", args, len);
PRINT_FIELD_FLAGS(", ", args, flags, btrfs_defrag_flags,
"BTRFS_DEFRAG_RANGE_???");
PRINT_FIELD_U(", ", args, extent_thresh);
PRINT_FIELD_XVAL(", ", args, compress_type,
btrfs_compress_types, "BTRFS_COMPRESS_???");
tprints("}");
break;
}
case BTRFS_IOC_DEV_INFO: { /* RW */
struct btrfs_ioctl_dev_info_args args;
char uuid[UUID_STRING_SIZE+1];
int valid;
if (entering(tcp))
tprints(", ");
else if (syserror(tcp))
break;
else
tprints(" => ");
if (umove_or_printaddr(tcp, arg, &args))
break;
valid = btrfs_unparse_uuid(args.uuid, uuid);
if (entering(tcp)) {
PRINT_FIELD_DEV("{", args, devid);
if (valid)
tprintf(", uuid=%s", uuid);
tprints("}");
return 0;
}
tprints("{");
if (valid)
tprintf("uuid=%s, ", uuid);
PRINT_FIELD_U("", args, bytes_used);
PRINT_FIELD_U(", ", args, total_bytes);
PRINT_FIELD_CSTRING(", ", args, path);
tprints("}");
break;
}
case BTRFS_IOC_DEV_REPLACE: { /* RW */
struct_btrfs_ioctl_dev_replace_args args;
if (entering(tcp))
tprints(", ");
else if (syserror(tcp))
break;
else
tprints(" => ");
if (umove_or_printaddr(tcp, arg, &args))
break;
if (entering(tcp)) {
PRINT_FIELD_XVAL("{", args, cmd, btrfs_dev_replace_cmds,
"BTRFS_IOCTL_DEV_REPLACE_CMD_???");
if (args.cmd == BTRFS_IOCTL_DEV_REPLACE_CMD_START) {
PRINT_FIELD_DEV(", start={", args.start,
srcdevid);
PRINT_FIELD_XVAL(", ", args.start,
cont_reading_from_srcdev_mode,
btrfs_cont_reading_from_srcdev_mode,
"BTRFS_IOCTL_DEV_REPLACE_CONT_READING"
"_FROM_SRCDEV_MODE_???");
PRINT_FIELD_CSTRING(", ", args.start,
srcdev_name);
PRINT_FIELD_CSTRING(", ", args.start,
tgtdev_name);
tprints("}");
}
tprints("}");
return 0;
}
PRINT_FIELD_XVAL("{", args, result, btrfs_dev_replace_results,
"BTRFS_IOCTL_DEV_REPLACE_RESULT_???");
if (args.cmd == BTRFS_IOCTL_DEV_REPLACE_CMD_STATUS) {
PRINT_FIELD_XVAL(", status={", args.status,
replace_state, btrfs_dev_replace_state,
"BTRFS_IOCTL_DEV_REPLACE_STATE_???");
PRINT_FIELD_U(", ", args.status, progress_1000);
if (args.status.progress_1000 <= 1000)
tprintf_comment("%u.%u%%",
(unsigned) args.status.progress_1000 / 10,
(unsigned) args.status.progress_1000 % 10);
PRINT_FIELD_U(", ", args.status, time_started);
tprints_comment(sprinttime(args.status.time_started));
PRINT_FIELD_U(", ", args.status, time_stopped);
tprints_comment(sprinttime(args.status.time_stopped));
PRINT_FIELD_U(", ", args.status, num_write_errors);
PRINT_FIELD_U(", ", args.status,
num_uncorrectable_read_errors);
}
tprints("}");
break;
}
case BTRFS_IOC_GET_FEATURES: { /* R */
struct btrfs_ioctl_feature_flags flags;
if (entering(tcp))
return 0;
tprints(", ");
if (umove_or_printaddr(tcp, arg, &flags))
break;
btrfs_print_features(&flags);
break;
}
case BTRFS_IOC_SET_FEATURES: { /* W */
struct btrfs_ioctl_feature_flags flarg[2];
tprints(", ");
if (umove_or_printaddr(tcp, arg, &flarg))
break;
tprints("[");
btrfs_print_features(&flarg[0]);
tprints(", ");
btrfs_print_features(&flarg[1]);
tprints("]");
break;
}
case BTRFS_IOC_GET_SUPPORTED_FEATURES: { /* R */
struct btrfs_ioctl_feature_flags flarg[3];
if (entering(tcp))
return 0;
tprints(", ");
if (umove_or_printaddr(tcp, arg, &flarg))
break;
tprints("[");
btrfs_print_features(&flarg[0]);
tprints_comment("supported");
tprints(", ");
btrfs_print_features(&flarg[1]);
tprints_comment("safe to set");
tprints(", ");
btrfs_print_features(&flarg[2]);
tprints_comment("safe to clear");
tprints("]");
break;
}
case BTRFS_IOC_FS_INFO: { /* R */
struct btrfs_ioctl_fs_info_args args;
char uuid[UUID_STRING_SIZE+1];
uint32_t nodesize, sectorsize, clone_alignment;
#ifndef HAVE_STRUCT_BTRFS_IOCTL_FS_INFO_ARGS_NODESIZE
uint32_t *reserved32;
#endif
if (entering(tcp))
return 0;
tprints(", ");
if (umove_or_printaddr(tcp, arg, &args))
break;
#ifdef HAVE_STRUCT_BTRFS_IOCTL_FS_INFO_ARGS_NODESIZE
nodesize = args.nodesize,
sectorsize = args.sectorsize,
clone_alignment = args.clone_alignment;
#else
reserved32 = (void *) args.reserved;
nodesize = reserved32[0];
sectorsize = reserved32[1];
clone_alignment = reserved32[2];
#endif
btrfs_unparse_uuid(args.fsid, uuid);
PRINT_FIELD_U("{", args, max_id);
PRINT_FIELD_U(", ", args, num_devices);
tprintf(", fsid=%s, nodesize=%u, sectorsize=%u"
", clone_alignment=%u",
uuid, nodesize, sectorsize, clone_alignment);
tprints("}");
break;
}
case BTRFS_IOC_GET_DEV_STATS: { /* RW */
struct btrfs_ioctl_get_dev_stats args;
uint64_t i;
if (entering(tcp))
tprints(", ");
else if (syserror(tcp))
break;
else
tprints(" => ");
if (umove_or_printaddr(tcp, arg, &args))
break;
tprints("{");
if (entering(tcp)) {
PRINT_FIELD_DEV("", args, devid);
tprints(", ");
}
PRINT_FIELD_U("", args, nr_items);
PRINT_FIELD_FLAGS(", ", args, flags, btrfs_dev_stats_flags,
"BTRFS_DEV_STATS_???");
if (entering(tcp)) {
tprints("}");
return 0;
}
/*
* The structure has a 1k limit; Let's make sure we don't
* go off into the middle of nowhere with a bad nr_items
* value.
*/
tprints(", [");
for (i = 0; i < args.nr_items; i++) {
if (i)
tprints(", ");
if (i >= ARRAY_SIZE(args.values)) {
tprints("...");
break;
}
tprints("[");
printxval_u(btrfs_dev_stats_values, i, NULL);
tprintf("] = %" PRI__u64, args.values[i]);
}
tprints("]}");
break;
}
case BTRFS_IOC_INO_LOOKUP: { /* RW */
struct btrfs_ioctl_ino_lookup_args args;
if (entering(tcp))
tprints(", ");
else if (syserror(tcp))
break;
else
tprints(" => ");
if (umove_or_printaddr(tcp, arg, &args))
break;
if (entering(tcp)) {
/* Use subvolume id of the containing root */
if (args.treeid == 0)
set_tcb_priv_ulong(tcp, 1);
btrfs_print_objectid("{", args, treeid);
btrfs_print_objectid(", ", args, objectid);
tprints("}");
return 0;
}
tprints("{");
if (get_tcb_priv_ulong(tcp)) {
btrfs_print_objectid("", args, treeid);
tprints(", ");
}
PRINT_FIELD_CSTRING("", args, name);
tprints("}");
break;
}
case BTRFS_IOC_INO_PATHS: { /* RW */
struct btrfs_ioctl_ino_path_args args;
if (entering(tcp))
tprints(", ");
else if (syserror(tcp))
break;
else
tprints(" => ");
if (umove_or_printaddr(tcp, arg, &args))
break;
if (entering(tcp)) {
PRINT_FIELD_U("{", args, inum);
PRINT_FIELD_U(", ", args, size);
PRINT_FIELD_ADDR64(", ", args, fspath);
tprints("}");
return 0;
}
tprints("{fspath=");
btrfs_print_ino_path_container(tcp, args.fspath);
tprints("}");
break;
}
case BTRFS_IOC_LOGICAL_INO: { /* RW */
struct btrfs_ioctl_logical_ino_args args;
if (entering(tcp))
tprints(", ");
else if (syserror(tcp))
break;
else
tprints(" => ");
if (umove_or_printaddr(tcp, arg, &args))
break;
if (entering(tcp)) {
PRINT_FIELD_U("{", args, logical);
PRINT_FIELD_U(", ", args, size);
if (!IS_ARRAY_ZERO(args.reserved)) {
tprints(", reserved=[");
for (size_t i = 0; i < 3; ++i)
tprintf("%s%#" PRI__x64,
i ? ", " : "",
args.reserved[i]);
tprints("]");
}
tprintf(", flags=");
printflags64(btrfs_logical_ino_args_flags,
#ifdef HAVE_STRUCT_BTRFS_IOCTL_LOGICAL_INO_ARGS_FLAGS
args.flags
#else
args.reserved[3]
#endif
, "BTRFS_LOGICAL_INO_ARGS_???");
PRINT_FIELD_ADDR64(", ", args, inodes);
tprints("}");
return 0;
}
tprints("{inodes=");
btrfs_print_logical_ino_container(tcp, args.inodes);
tprints("}");
break;
}
case BTRFS_IOC_QGROUP_ASSIGN: { /* W */
struct btrfs_ioctl_qgroup_assign_args args;
tprints(", ");
if (umove_or_printaddr(tcp, arg, &args))
break;
PRINT_FIELD_U("{", args, assign);
PRINT_FIELD_U(", ", args, src);
PRINT_FIELD_U(", ", args, dst);
tprints("}");
break;
}
case BTRFS_IOC_QGROUP_CREATE: { /* W */
struct btrfs_ioctl_qgroup_create_args args;
tprints(", ");
if (umove_or_printaddr(tcp, arg, &args))
break;
PRINT_FIELD_U("{", args, create);
PRINT_FIELD_U(", ", args, qgroupid);
tprints("}");
break;
}
case BTRFS_IOC_QGROUP_LIMIT: { /* R */
struct btrfs_ioctl_qgroup_limit_args args;
if (entering(tcp))
return 0;
tprints(", ");
if (umove_or_printaddr(tcp, arg, &args))
break;
PRINT_FIELD_U("{", args, qgroupid);
btrfs_print_qgroup_limit(&args.lim);
tprints("}");
break;
}
case BTRFS_IOC_QUOTA_CTL: { /* W */
struct btrfs_ioctl_quota_ctl_args args;
tprints(", ");
if (umove_or_printaddr(tcp, arg, &args))
break;
PRINT_FIELD_XVAL("{", args, cmd, btrfs_qgroup_ctl_cmds,
"BTRFS_QUOTA_CTL_???");
tprints("}");
break;
}
case BTRFS_IOC_QUOTA_RESCAN: { /* W */
struct btrfs_ioctl_quota_rescan_args args;
tprints(", ");
if (umove_or_printaddr(tcp, arg, &args))
break;
PRINT_FIELD_U("{", args, flags);
tprints("}");
break;
}