1 /*
2 * Copyright (c) 2016 Jeff Mahoney <jeffm@suse.com>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28 #include "defs.h"
29
30 #ifdef HAVE_LINUX_BTRFS_H
31
32 #include DEF_MPERS_TYPE(struct_btrfs_ioctl_dev_replace_args)
33 #include DEF_MPERS_TYPE(struct_btrfs_ioctl_send_args)
34 #include DEF_MPERS_TYPE(struct_btrfs_ioctl_received_subvol_args)
35 #include DEF_MPERS_TYPE(struct_btrfs_ioctl_vol_args_v2)
36
37 # include <linux/btrfs.h>
38
39 typedef struct btrfs_ioctl_dev_replace_args
40 struct_btrfs_ioctl_dev_replace_args;
41 typedef struct btrfs_ioctl_send_args
42 struct_btrfs_ioctl_send_args;
43 typedef struct btrfs_ioctl_received_subvol_args
44 struct_btrfs_ioctl_received_subvol_args;
45 typedef struct btrfs_ioctl_vol_args_v2
46 struct_btrfs_ioctl_vol_args_v2;
47
48 #endif /* HAVE_LINUX_BTRFS_H */
49
50 #include MPERS_DEFS
51
52 #ifdef HAVE_LINUX_BTRFS_H
53
54 #include <linux/fs.h>
55
56 /*
57 * Prior to Linux 3.12, the BTRFS_IOC_DEFAULT_SUBVOL used u64 in
58 * its definition, which isn't exported by the kernel.
59 */
60 typedef __u64 u64;
61
62 #ifndef HAVE_STRUCT_BTRFS_IOCTL_FEATURE_FLAGS_COMPAT_FLAGS
63 struct btrfs_ioctl_feature_flags {
64 uint64_t compat_flags;
65 uint64_t compat_ro_flags;
66 uint64_t incompat_flags;
67 };
68 #endif
69
70 #ifndef HAVE_STRUCT_BTRFS_IOCTL_DEFRAG_RANGE_ARGS_START
71 struct btrfs_ioctl_defrag_range_args {
72 uint64_t start;
73 uint64_t len;
74 uint64_t flags;
75 uint32_t extent_thresh;
76 uint32_t compress_type;
77 uint32_t unused[4];
78 };
79 #endif
80
81 #ifndef BTRFS_LABEL_SIZE
82 # define BTRFS_LABEL_SIZE 256
83 #endif
84
85 #ifndef BTRFS_FIRST_FREE_OBJECTID
86 # define BTRFS_FIRST_FREE_OBJECTID 256ULL
87 #endif
88
89 #ifndef BTRFS_IOC_QUOTA_RESCAN
90 struct btrfs_ioctl_quota_rescan_args {
91 uint64_t flags, progress, reserved[6];
92 };
93 # define BTRFS_IOC_QUOTA_RESCAN _IOW(BTRFS_IOCTL_MAGIC, 44, \
94 struct btrfs_ioctl_quota_rescan_args)
95 # define BTRFS_IOC_QUOTA_RESCAN_STATUS _IOR(BTRFS_IOCTL_MAGIC, 45, \
96 struct btrfs_ioctl_quota_rescan_args)
97 #endif
98
99 #ifndef BTRFS_IOC_QUOTA_RESCAN_WAIT
100 # define BTRFS_IOC_QUOTA_RESCAN_WAIT _IO(BTRFS_IOCTL_MAGIC, 46)
101 #endif
102
103 #ifndef BTRFS_IOC_GET_FEATURES
104 # define BTRFS_IOC_GET_FEATURES _IOR(BTRFS_IOCTL_MAGIC, 57, \
105 struct btrfs_ioctl_feature_flags)
106 # define BTRFS_IOC_SET_FEATURES _IOW(BTRFS_IOCTL_MAGIC, 57, \
107 struct btrfs_ioctl_feature_flags[2])
108 # define BTRFS_IOC_GET_SUPPORTED_FEATURES _IOR(BTRFS_IOCTL_MAGIC, 57, \
109 struct btrfs_ioctl_feature_flags[3])
110 #endif
111
112 #ifndef BTRFS_IOC_TREE_SEARCH_V2
113 # define BTRFS_IOC_TREE_SEARCH_V2 _IOWR(BTRFS_IOCTL_MAGIC, 17, \
114 struct btrfs_ioctl_search_args_v2)
115 struct btrfs_ioctl_search_args_v2 {
116 struct btrfs_ioctl_search_key key; /* in/out - search parameters */
117 uint64_t buf_size; /* in - size of buffer
118 * out - on EOVERFLOW: needed size
119 * to store item */
120 uint64_t buf[0]; /* out - found items */
121 };
122 #endif
123
124 #include "xlat/btrfs_balance_args.h"
125 #include "xlat/btrfs_balance_ctl_cmds.h"
126 #include "xlat/btrfs_balance_flags.h"
127 #include "xlat/btrfs_balance_state.h"
128 #include "xlat/btrfs_compress_types.h"
129 #include "xlat/btrfs_defrag_flags.h"
130 #include "xlat/btrfs_dev_replace_cmds.h"
131 #include "xlat/btrfs_dev_replace_results.h"
132 #include "xlat/btrfs_dev_replace_state.h"
133 #include "xlat/btrfs_dev_stats_flags.h"
134 #include "xlat/btrfs_dev_stats_values.h"
135 #include "xlat/btrfs_features_compat.h"
136 #include "xlat/btrfs_features_compat_ro.h"
137 #include "xlat/btrfs_features_incompat.h"
138 #include "xlat/btrfs_key_types.h"
139 #include "xlat/btrfs_qgroup_ctl_cmds.h"
140 #include "xlat/btrfs_qgroup_inherit_flags.h"
141 #include "xlat/btrfs_qgroup_limit_flags.h"
142 #include "xlat/btrfs_qgroup_status_flags.h"
143 #include "xlat/btrfs_scrub_flags.h"
144 #include "xlat/btrfs_send_flags.h"
145 #include "xlat/btrfs_snap_flags_v2.h"
146 #include "xlat/btrfs_space_info_flags.h"
147 #include "xlat/btrfs_tree_objectids.h"
148
149 static inline char
prnibble(char v)150 prnibble(char v)
151 {
152 if (v >= 10)
153 return 'a' + (v - 10);
154 return '0' + v;
155 }
156
157 /* 8-4-4-4-12 = 36 characters */
158 #define UUID_STRING_SIZE 36
159
160 /* Formats uuid, returns 0 if it's all zeroes */
161 static int
btrfs_unparse_uuid(unsigned char * uuid,char * out)162 btrfs_unparse_uuid(unsigned char *uuid, char *out)
163 {
164 int i;
165 int ret = 0;
166 for (i = 0; i < BTRFS_UUID_SIZE; i++) {
167 if (i == 4 || i == 6 || i == 8 || i == 10)
168 *out++ = '-';
169 *out++ = prnibble(uuid[i] >> 4);
170 *out++ = prnibble(uuid[i] & 0xf);
171 if (uuid[i])
172 ret = 1;
173 }
174 *out = '\0';
175 return ret;
176 }
177
178 static void
print_u64(const char * name,uint64_t value)179 print_u64(const char *name, uint64_t value)
180 {
181 tprintf(", %s=%" PRIu64, name, value);
182 if (value == UINT64_MAX)
183 tprints(" /* UINT64_MAX */");
184 }
185
186 #define print_member_u64(obj, name) print_u64(#name, obj->name)
187
188 static void
btrfs_print_balance_args(const char * name,const struct btrfs_balance_args * bba)189 btrfs_print_balance_args(const char *name, const struct btrfs_balance_args *bba)
190 {
191 tprintf(", %s={profiles=", name);
192 printflags64(btrfs_space_info_flags, bba->profiles,
193 "BTRFS_BLOCK_GROUP_???");
194 print_member_u64(bba, usage);
195 print_member_u64(bba, devid);
196 print_member_u64(bba, pstart);
197 print_member_u64(bba, pend);
198 print_member_u64(bba, vstart);
199 print_member_u64(bba, vend);
200 print_member_u64(bba, target);
201 tprints(", flags=");
202 printflags64(btrfs_balance_args, bba->flags, "BTRFS_BALANCE_ARGS_???");
203 tprints("}");
204 }
205
206 static void
btrfs_print_balance(struct tcb * const tcp,const kernel_ulong_t arg,bool out)207 btrfs_print_balance(struct tcb *const tcp, const kernel_ulong_t arg, bool out)
208 {
209 struct btrfs_ioctl_balance_args balance_args;
210
211 if (umove_or_printaddr(tcp, arg, &balance_args))
212 return;
213
214 tprints("{flags=");
215 printflags64(btrfs_balance_flags, balance_args.flags,
216 "BTRFS_BALANCE_???");
217 if (out) {
218 tprints(", state=");
219 printflags64(btrfs_balance_state, balance_args.state,
220 "BTRFS_BALANCE_STATE_???");
221 }
222
223 if (balance_args.flags & BTRFS_BALANCE_DATA)
224 btrfs_print_balance_args("data", &balance_args.data);
225 if (balance_args.flags & BTRFS_BALANCE_METADATA)
226 btrfs_print_balance_args("meta", &balance_args.meta);
227 if (balance_args.flags & BTRFS_BALANCE_SYSTEM)
228 btrfs_print_balance_args("sys", &balance_args.sys);
229 tprints("}");
230 }
231
232 static void
btrfs_print_features(const struct btrfs_ioctl_feature_flags * flags)233 btrfs_print_features(const struct btrfs_ioctl_feature_flags *flags)
234 {
235 tprints("{compat_flags=");
236 printflags64(btrfs_features_compat, flags->compat_flags,
237 "BTRFS_FEATURE_COMPAT_???");
238
239 tprints(", compat_ro_flags=");
240 printflags64(btrfs_features_compat_ro, flags->compat_ro_flags,
241 "BTRFS_FEATURE_COMPAT_RO_???");
242
243 tprints(", incompat_flags=");
244 printflags64(btrfs_features_incompat, flags->incompat_flags,
245 "BTRFS_FEATURE_INCOMPAT_???");
246 tprints("}");
247 }
248
249 static void
btrfs_print_qgroup_limit(const struct btrfs_qgroup_limit * lim)250 btrfs_print_qgroup_limit(const struct btrfs_qgroup_limit *lim)
251 {
252 tprints("{flags=");
253 printflags64(btrfs_qgroup_limit_flags, lim->flags,
254 "BTRFS_QGROUP_LIMIT_???");
255 tprintf(", max_rfer=%" PRI__u64 ", max_excl=%" PRI__u64
256 ", rsv_rfer=%" PRI__u64 ", rsv_excl=%" PRI__u64 "}",
257 lim->max_rfer, lim->max_excl,
258 lim->rsv_rfer, lim->rsv_excl);
259 }
260
261 static void
btrfs_print_key_type(uint32_t type)262 btrfs_print_key_type(uint32_t type)
263 {
264 const char *str = xlookup(btrfs_key_types, type);
265 tprintf("%u", type);
266 if (str)
267 tprintf(" /* %s */", str);
268 }
269
270 static void
btrfs_print_objectid(uint64_t objectid)271 btrfs_print_objectid(uint64_t objectid)
272 {
273 const char *str = xlookup(btrfs_tree_objectids, objectid);
274 tprintf("%" PRIu64, objectid);
275 if (str)
276 tprintf(" /* %s */", str);
277 }
278
279 static void
btrfs_print_data_container_header(const struct btrfs_data_container * container)280 btrfs_print_data_container_header(const struct btrfs_data_container *container)
281 {
282 tprintf("{bytes_left=%u, bytes_missing=%u"
283 ", elem_cnt=%u, elem_missed=%u, val=",
284 container->bytes_left, container->bytes_missing,
285 container->elem_cnt, container->elem_missed);
286 }
287
288 static void
btrfs_print_data_container_footer(void)289 btrfs_print_data_container_footer(void)
290 {
291 tprints("}");
292 }
293
294 static bool
print_btrfs_data_container_logical_ino(struct tcb * tcp,void * elem_buf,size_t elem_size,void * data)295 print_btrfs_data_container_logical_ino(struct tcb *tcp, void *elem_buf,
296 size_t elem_size, void *data)
297 {
298 const uint64_t *const record = elem_buf;
299
300 tprintf("{inum=%" PRIu64 ", offset=%" PRIu64 ", root=%" PRIu64 "}",
301 record[0], record[1], record[2]);
302
303 return true;
304 }
305
306 static void
btrfs_print_logical_ino_container(struct tcb * tcp,const uint64_t inodes_addr)307 btrfs_print_logical_ino_container(struct tcb *tcp,
308 const uint64_t inodes_addr)
309 {
310 struct btrfs_data_container container;
311
312 if (umove_or_printaddr(tcp, inodes_addr, &container))
313 return;
314
315 btrfs_print_data_container_header(&container);
316
317 if (abbrev(tcp)) {
318 tprints("...");
319 } else {
320 const uint64_t val_addr =
321 inodes_addr + offsetof(typeof(container), val);
322 uint64_t record[3];
323 print_array(tcp, val_addr, container.elem_cnt / 3,
324 record, sizeof(record),
325 umoven_or_printaddr,
326 print_btrfs_data_container_logical_ino, 0);
327 }
328
329 btrfs_print_data_container_footer();
330 }
331
332 static bool
print_btrfs_data_container_ino_path(struct tcb * tcp,void * elem_buf,size_t elem_size,void * data)333 print_btrfs_data_container_ino_path(struct tcb *tcp, void *elem_buf,
334 size_t elem_size, void *data)
335 {
336 const uint64_t *const offset = elem_buf;
337 const uint64_t *const val_addr = data;
338
339 printpath(tcp, *val_addr + *offset);
340
341 return true;
342 }
343
344 static void
btrfs_print_ino_path_container(struct tcb * tcp,const uint64_t fspath_addr)345 btrfs_print_ino_path_container(struct tcb *tcp,
346 const uint64_t fspath_addr)
347 {
348 struct btrfs_data_container container;
349
350 if (umove_or_printaddr(tcp, fspath_addr, &container))
351 return;
352
353 btrfs_print_data_container_header(&container);
354
355 if (abbrev(tcp)) {
356 tprints("...");
357 } else {
358 uint64_t val_addr =
359 fspath_addr + offsetof(typeof(container), val);
360 uint64_t offset;
361 print_array(tcp, val_addr, container.elem_cnt,
362 &offset, sizeof(offset),
363 umoven_or_printaddr,
364 print_btrfs_data_container_ino_path, &val_addr);
365 }
366
367 btrfs_print_data_container_footer();
368 }
369
370 static bool
print_uint64(struct tcb * tcp,void * elem_buf,size_t elem_size,void * data)371 print_uint64(struct tcb *tcp, void *elem_buf, size_t elem_size, void *data)
372 {
373 tprintf("%" PRIu64, * (uint64_t *) elem_buf);
374
375 return true;
376 }
377
378 static void
btrfs_print_qgroup_inherit(struct tcb * const tcp,const kernel_ulong_t qgi_addr)379 btrfs_print_qgroup_inherit(struct tcb *const tcp, const kernel_ulong_t qgi_addr)
380 {
381 struct btrfs_qgroup_inherit inherit;
382
383 if (umove_or_printaddr(tcp, qgi_addr, &inherit))
384 return;
385
386 tprints("{flags=");
387 printflags64(btrfs_qgroup_inherit_flags, inherit.flags,
388 "BTRFS_QGROUP_INHERIT_???");
389 tprintf(", num_qgroups=%" PRI__u64 ", num_ref_copies=%" PRI__u64
390 ", num_excl_copies=%" PRI__u64 ", lim=",
391 inherit.num_qgroups, inherit.num_ref_copies,
392 inherit.num_excl_copies);
393
394 btrfs_print_qgroup_limit(&inherit.lim);
395
396 tprints(", qgroups=");
397
398 if (abbrev(tcp)) {
399 tprints("...");
400 } else {
401 uint64_t record;
402 print_array(tcp, qgi_addr + offsetof(typeof(inherit), qgroups),
403 inherit.num_qgroups, &record, sizeof(record),
404 umoven_or_printaddr, print_uint64, 0);
405 }
406 tprints("}");
407 }
408
409 static void
print_key_value_internal(struct tcb * tcp,const char * name,uint64_t value)410 print_key_value_internal(struct tcb *tcp, const char *name, uint64_t value)
411 {
412 if (value) {
413 tprintf(", %s=%" PRIu64, name, value);
414 if (value == UINT64_MAX)
415 tprints(" /* UINT64_MAX */");
416 }
417 }
418 #define print_key_value(tcp, key, name) \
419 print_key_value_internal((tcp), #name, (key)->name)
420
421 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)422 btrfs_print_tree_search(struct tcb *tcp, struct btrfs_ioctl_search_key *key,
423 uint64_t buf_addr, uint64_t buf_size, bool print_size)
424 {
425 if (entering(tcp)) {
426 tprints("{key={tree_id=");
427 btrfs_print_objectid(key->tree_id);
428
429 if (key->min_objectid != BTRFS_FIRST_FREE_OBJECTID ||
430 !abbrev(tcp)) {
431 tprints(", min_objectid=");
432 btrfs_print_objectid(key->min_objectid);
433 }
434
435 if (key->max_objectid != BTRFS_LAST_FREE_OBJECTID ||
436 !abbrev(tcp)) {
437 tprints(", max_objectid=");
438 btrfs_print_objectid(key->max_objectid);
439 }
440
441 print_key_value(tcp, key, min_offset);
442 print_key_value(tcp, key, max_offset);
443 print_key_value(tcp, key, min_transid);
444 print_key_value(tcp, key, max_transid);
445
446 tprints(", min_type=");
447 btrfs_print_key_type(key->min_type);
448 tprints(", max_type=");
449 btrfs_print_key_type(key->max_type);
450 tprintf(", nr_items=%u}", key->nr_items);
451 if (print_size)
452 tprintf(", buf_size=%" PRIu64, buf_size);
453 tprints("}");
454 } else {
455 tprintf("{key={nr_items=%u}", key->nr_items);
456 if (print_size)
457 tprintf(", buf_size=%" PRIu64, buf_size);
458 tprints(", buf=");
459 if (abbrev(tcp))
460 tprints("...");
461 else {
462 uint64_t i;
463 uint64_t off = 0;
464 tprints("[");
465 for (i = 0; i < key->nr_items; i++) {
466 struct btrfs_ioctl_search_header sh;
467 uint64_t addr = buf_addr + off;
468 if (i)
469 tprints(", ");
470 if (i > max_strlen ||
471 umove(tcp, addr, &sh)) {
472 tprints("...");
473 break;
474 }
475 tprintf("{transid=%" PRI__u64 ", objectid=",
476 sh.transid);
477 btrfs_print_objectid(sh.objectid);
478 tprintf(", offset=%" PRI__u64 ", type=", sh.offset);
479 btrfs_print_key_type(sh.type);
480 tprintf(", len=%u}", sh.len);
481 off += sizeof(sh) + sh.len;
482
483 }
484 tprints("]");
485 }
486 tprints("}");
487 }
488 }
489
490 static bool
print_objectid_callback(struct tcb * tcp,void * elem_buf,size_t elem_size,void * data)491 print_objectid_callback(struct tcb *tcp, void *elem_buf,
492 size_t elem_size, void *data)
493 {
494 btrfs_print_objectid(* (uint64_t *) elem_buf);
495
496 return true;
497 }
498
499 static bool
print_btrfs_ioctl_space_info(struct tcb * tcp,void * elem_buf,size_t elem_size,void * data)500 print_btrfs_ioctl_space_info(struct tcb *tcp, void *elem_buf,
501 size_t elem_size, void *data)
502 {
503 const struct btrfs_ioctl_space_info *info = elem_buf;
504
505 tprints("{flags=");
506 printflags64(btrfs_space_info_flags, info->flags,
507 "BTRFS_SPACE_INFO_???");
508 tprintf(", total_bytes=%" PRI__u64 ", used_bytes=%" PRI__u64 "}",
509 info->total_bytes, info->used_bytes);
510
511 return true;
512 }
513
MPERS_PRINTER_DECL(int,btrfs_ioctl,struct tcb * const tcp,const unsigned int code,const kernel_ulong_t arg)514 MPERS_PRINTER_DECL(int, btrfs_ioctl,
515 struct tcb *const tcp, const unsigned int code,
516 const kernel_ulong_t arg)
517 {
518 switch (code) {
519 /* Take no arguments; command only. */
520 case BTRFS_IOC_TRANS_START:
521 case BTRFS_IOC_TRANS_END:
522 case BTRFS_IOC_SYNC:
523 case BTRFS_IOC_SCRUB_CANCEL:
524 case BTRFS_IOC_QUOTA_RESCAN_WAIT:
525 /*
526 * The codes for these ioctls are based on each accepting a
527 * vol_args but none of them actually consume an argument.
528 */
529 case BTRFS_IOC_DEFRAG:
530 case BTRFS_IOC_BALANCE:
531 break;
532
533 /* takes a signed int */
534 case BTRFS_IOC_BALANCE_CTL:
535 tprints(", ");
536 printxval(btrfs_balance_ctl_cmds, arg, "BTRFS_BALANCE_CTL_???");
537 break;
538
539 /* returns a 64 */
540 case BTRFS_IOC_START_SYNC: /* R */
541 if (entering(tcp))
542 return 0;
543 /* fall through */
544 /* takes a u64 */
545 case BTRFS_IOC_DEFAULT_SUBVOL: /* W */
546 case BTRFS_IOC_WAIT_SYNC: /* W */
547 tprints(", ");
548 printnum_int64(tcp, arg, "%" PRIu64);
549 break;
550
551 /* u64 but describe a flags bitfield; we can make that symbolic */
552 case BTRFS_IOC_SUBVOL_GETFLAGS: { /* R */
553 uint64_t flags;
554
555 if (entering(tcp))
556 return 0;
557
558 tprints(", ");
559
560 if (umove_or_printaddr(tcp, arg, &flags))
561 break;
562
563 printflags64(btrfs_snap_flags_v2, flags, "BTRFS_SUBVOL_???");
564 break;
565 }
566
567 case BTRFS_IOC_SUBVOL_SETFLAGS: { /* W */
568 uint64_t flags;
569
570 tprints(", ");
571
572 if (umove_or_printaddr(tcp, arg, &flags))
573 break;
574
575 printflags64(btrfs_snap_flags_v2, flags, "BTRFS_SUBVOL_???");
576 break;
577 }
578
579 /* More complex types */
580 case BTRFS_IOC_BALANCE_V2: /* RW */
581 if (entering(tcp)) {
582 tprints(", ");
583 btrfs_print_balance(tcp, arg, false);
584 return 0;
585 }
586
587 if (syserror(tcp))
588 break;
589
590 tprints(" => ");
591 btrfs_print_balance(tcp, arg, true);
592 break;
593 case BTRFS_IOC_BALANCE_PROGRESS: /* R */
594 if (entering(tcp))
595 return 0;
596
597 tprints(", ");
598 btrfs_print_balance(tcp, arg, true);
599 break;
600
601 case BTRFS_IOC_DEFRAG_RANGE: { /* W */
602 struct btrfs_ioctl_defrag_range_args args;
603
604 tprints(", ");
605
606 if (umove_or_printaddr(tcp, arg, &args))
607 break;
608
609 tprintf("{start=%" PRIu64 ", len=", (uint64_t)args.start);
610
611 tprintf("%" PRIu64, (uint64_t) args.len);
612 if (args.len == UINT64_MAX)
613 tprints(" /* UINT64_MAX */");
614
615 tprints(", flags=");
616 printflags64(btrfs_defrag_flags, args.flags,
617 "BTRFS_DEFRAG_RANGE_???");
618 tprintf(", extent_thresh=%u, compress_type=",
619 args.extent_thresh);
620 printxval(btrfs_compress_types, args.compress_type,
621 "BTRFS_COMPRESS_???");
622 tprints("}");
623 break;
624 }
625
626 case BTRFS_IOC_DEV_INFO: { /* RW */
627 struct btrfs_ioctl_dev_info_args args;
628 char uuid[UUID_STRING_SIZE+1];
629 int valid;
630
631 if (entering(tcp))
632 tprints(", ");
633 else if (syserror(tcp))
634 break;
635 else
636 tprints(" => ");
637 if (umove_or_printaddr(tcp, arg, &args))
638 break;
639 tprints("{");
640
641 valid = btrfs_unparse_uuid(args.uuid, uuid);
642 if (entering(tcp)) {
643 tprintf("devid=%" PRI__u64, args.devid);
644 if (valid)
645 tprintf(", uuid=%s", uuid);
646 tprints("}");
647 return 0;
648 }
649 if (valid)
650 tprintf("uuid=%s, ", uuid);
651 tprintf("bytes_used=%" PRI__u64
652 ", total_bytes=%" PRI__u64 ", path=",
653 args.bytes_used, args.total_bytes);
654 print_quoted_string((const char *)args.path, sizeof(args.path),
655 QUOTE_0_TERMINATED);
656 tprints("}");
657 break;
658 }
659
660 case BTRFS_IOC_DEV_REPLACE: { /* RW */
661 struct_btrfs_ioctl_dev_replace_args args;
662
663 if (entering(tcp))
664 tprints(", ");
665 else if (syserror(tcp))
666 break;
667 else
668 tprints(" => ");
669
670 if (umove_or_printaddr(tcp, arg, &args))
671 break;
672
673 if (entering(tcp)) {
674 tprints("{cmd=");
675 printxval64(btrfs_dev_replace_cmds, args.cmd,
676 "BTRFS_IOCTL_DEV_REPLACE_CMD_???");
677 if (args.cmd == BTRFS_IOCTL_DEV_REPLACE_CMD_START) {
678 const char *str;
679 tprintf(", start={srcdevid=%" PRIu64
680 ", cont_reading_from_srcdev_mode=%" PRIu64
681 ", srcdev_name=",
682 (uint64_t) args.start.srcdevid,
683 (uint64_t) args.start.cont_reading_from_srcdev_mode);
684
685 str = (const char*) args.start.srcdev_name;
686 print_quoted_string(str,
687 sizeof(args.start.srcdev_name),
688 QUOTE_0_TERMINATED);
689 tprints(", tgtdev_name=");
690 str = (const char*) args.start.tgtdev_name;
691 print_quoted_string(str,
692 sizeof(args.start.tgtdev_name),
693 QUOTE_0_TERMINATED);
694 tprints("}");
695
696 }
697 tprints("}");
698 return 0;
699 }
700
701 tprints("{result=");
702 printxval64(btrfs_dev_replace_results, args.result,
703 "BTRFS_IOCTL_DEV_REPLACE_RESULT_???");
704 if (args.cmd == BTRFS_IOCTL_DEV_REPLACE_CMD_STATUS) {
705 char buf[sizeof("HH:MM:SS") + 1];
706 time_t time;
707 tprints(", ");
708 printxval64(btrfs_dev_replace_state,
709 args.status.replace_state,
710 "BTRFS_IOCTL_DEV_REPLACE_STATE_???");
711 tprintf(", progress_1000=%" PRIu64 " /* ",
712 (uint64_t) args.status.progress_1000);
713 if (args.status.progress_1000 <= 1000)
714 tprintf("%" PRIu64 ".%.2" PRIu64 "%%",
715 (uint64_t) args.status.progress_1000 / 10,
716 (uint64_t) args.status.progress_1000 % 10);
717 else
718 tprints("???");
719 tprints(" */ ,");
720
721 time = args.status.time_started;
722 strftime(buf, sizeof(buf), "%T",
723 localtime(&time));
724 tprintf("time_started=%" PRIu64" /* %s */, ",
725 (uint64_t) args.status.time_started, buf);
726
727 time = args.status.time_stopped;
728 strftime(buf, sizeof(buf), "%T",
729 localtime(&time));
730 tprintf("time_stopped=%" PRIu64" /* %s */, ",
731 (uint64_t) args.status.time_stopped, buf);
732
733 tprintf("num_write_errors=%" PRIu64
734 ", num_uncorrectable_read_errors=%" PRIu64,
735 (uint64_t) args.status.num_write_errors,
736 (uint64_t) args.status.num_uncorrectable_read_errors);
737 }
738 tprints("}");
739 break;
740 }
741
742 case BTRFS_IOC_GET_FEATURES: { /* R */
743 struct btrfs_ioctl_feature_flags flags;
744
745 if (entering(tcp))
746 return 0;
747
748 tprints(", ");
749 if (umove_or_printaddr(tcp, arg, &flags))
750 break;
751
752 btrfs_print_features(&flags);
753 break;
754 }
755
756 case BTRFS_IOC_SET_FEATURES: { /* W */
757 struct btrfs_ioctl_feature_flags flarg[2];
758
759 tprints(", ");
760
761 if (umove_or_printaddr(tcp, arg, &flarg))
762 break;
763
764 tprints("[");
765 btrfs_print_features(&flarg[0]);
766 tprints(", ");
767 btrfs_print_features(&flarg[1]);
768 tprints("]");
769 break;
770 }
771
772 case BTRFS_IOC_GET_SUPPORTED_FEATURES: { /* R */
773 struct btrfs_ioctl_feature_flags flarg[3];
774
775 if (entering(tcp))
776 return 0;
777
778 tprints(", ");
779 if (umove_or_printaddr(tcp, arg, &flarg))
780 break;
781
782 tprints("[ /* supported */ ");
783 btrfs_print_features(&flarg[0]);
784
785 tprints(", /* safe to set */ ");
786 btrfs_print_features(&flarg[1]);
787
788 tprints(", /* safe to clear */ ");
789 btrfs_print_features(&flarg[2]);
790 tprints("]");
791
792 break;
793 }
794
795 case BTRFS_IOC_FS_INFO: { /* R */
796 struct btrfs_ioctl_fs_info_args args;
797 char uuid[UUID_STRING_SIZE+1];
798 uint32_t nodesize, sectorsize, clone_alignment;
799 #ifndef HAVE_STRUCT_BTRFS_IOCTL_FS_INFO_ARGS_NODESIZE
800 __u32 *reserved32;
801 #endif
802
803 if (entering(tcp))
804 return 0;
805
806 tprints(", ");
807 if (umove_or_printaddr(tcp, arg, &args))
808 break;
809
810 #ifdef HAVE_STRUCT_BTRFS_IOCTL_FS_INFO_ARGS_NODESIZE
811 nodesize = args.nodesize,
812 sectorsize = args.sectorsize,
813 clone_alignment = args.clone_alignment;
814 #else
815 reserved32 = (__u32 *) (void *) args.reserved;
816 nodesize = reserved32[0];
817 sectorsize = reserved32[1];
818 clone_alignment = reserved32[2];
819 #endif
820 btrfs_unparse_uuid(args.fsid, uuid);
821
822 tprints("{");
823 tprintf("max_id=%" PRI__u64 ", num_devices=%" PRI__u64
824 ", fsid=%s, nodesize=%u, sectorsize=%u"
825 ", clone_alignment=%u",
826 args.max_id, args.num_devices, uuid,
827 nodesize, sectorsize, clone_alignment);
828 tprints("}");
829 break;
830 }
831
832 case BTRFS_IOC_GET_DEV_STATS: { /* RW */
833 struct btrfs_ioctl_get_dev_stats args;
834 uint64_t i;
835
836 if (entering(tcp))
837 tprints(", ");
838 else if (syserror(tcp))
839 break;
840 else
841 tprints(" => ");
842 if (umove_or_printaddr(tcp, arg, &args))
843 break;
844
845 tprints("{");
846
847 if (entering(tcp))
848 tprintf("devid=%" PRI__u64 ", ", args.devid);
849
850 tprintf("nr_items=%" PRI__u64 ", flags=", args.nr_items);
851 printflags64(btrfs_dev_stats_flags, args.flags,
852 "BTRFS_DEV_STATS_???");
853
854 if (entering(tcp)) {
855 tprints("}");
856 return 0;
857 }
858
859 /*
860 * The structure has a 1k limit; Let's make sure we don't
861 * go off into the middle of nowhere with a bad nr_items
862 * value.
863 */
864 tprints(", [");
865 for (i = 0; i < args.nr_items; i++) {
866 if (i)
867 tprints(", ");
868 if (i >= ARRAY_SIZE(args.values)) {
869 tprints("...");
870 break;
871 }
872 const char *name = xlookup(btrfs_dev_stats_values, i);
873 if (name)
874 tprintf("/* %s */ ", name);
875 tprintf("%" PRI__u64, args.values[i]);
876 }
877 tprints("]}");
878 break;
879 }
880
881 case BTRFS_IOC_INO_LOOKUP: { /* RW */
882 struct btrfs_ioctl_ino_lookup_args args;
883
884 if (entering(tcp))
885 tprints(", ");
886 else if (syserror(tcp))
887 break;
888 else
889 tprints(" => ");
890
891 if (umove_or_printaddr(tcp, arg, &args))
892 break;
893
894 if (entering(tcp)) {
895 /* Use subvolume id of the containing root */
896 if (args.treeid == 0)
897 set_tcb_priv_ulong(tcp, 1);
898
899 tprints("{treeid=");
900 btrfs_print_objectid(args.treeid);
901 tprints(", objectid=");
902 btrfs_print_objectid(args.objectid);
903 tprints("}");
904 return 0;
905 }
906
907 tprints("{");
908 if (get_tcb_priv_ulong(tcp)) {
909 tprints("treeid=");
910 btrfs_print_objectid(args.treeid);
911 tprints(", ");
912 }
913
914 tprints("name=");
915 print_quoted_string(args.name, sizeof(args.name),
916 QUOTE_0_TERMINATED);
917 tprints("}");
918 break;
919 }
920
921 case BTRFS_IOC_INO_PATHS: { /* RW */
922 struct btrfs_ioctl_ino_path_args args;
923
924 if (entering(tcp))
925 tprints(", ");
926 else if (syserror(tcp))
927 break;
928 else
929 tprints(" => ");
930
931 if (umove_or_printaddr(tcp, arg, &args))
932 break;
933
934 tprints("{");
935
936 if (entering(tcp)) {
937 tprintf("inum=%" PRI__u64 ", size=%" PRI__u64,
938 args.inum, args.size);
939 tprintf(", fspath=0x%" PRI__x64 "}", args.fspath);
940 return 0;
941 }
942
943 tprints("fspath=");
944 btrfs_print_ino_path_container(tcp, args.fspath);
945
946 tprints("}");
947 break;
948 }
949
950 case BTRFS_IOC_LOGICAL_INO: { /* RW */
951 struct btrfs_ioctl_logical_ino_args args;
952
953 if (entering(tcp))
954 tprints(", ");
955 else if (syserror(tcp))
956 break;
957 else
958 tprints(" => ");
959
960 if (umove_or_printaddr(tcp, arg, &args))
961 break;
962
963 tprints("{");
964
965 if (entering(tcp)) {
966 tprintf("logical=%" PRI__u64 ", size=%" PRI__u64,
967 args.logical, args.size);
968 tprintf(", inodes=0x%" PRI__x64 "}", args.inodes);
969 return 0;
970 }
971
972 tprints("inodes=");
973 btrfs_print_logical_ino_container(tcp, args.inodes);
974
975 tprints("}");
976 break;
977 }
978
979 case BTRFS_IOC_QGROUP_ASSIGN: { /* W */
980 struct btrfs_ioctl_qgroup_assign_args args;
981
982 tprints(", ");
983 if (umove_or_printaddr(tcp, arg, &args))
984 break;
985
986 tprintf("{assign=%" PRI__u64 ", src=%" PRI__u64
987 ", dst=%" PRI__u64 "}",
988 args.assign, args.src, args.dst);
989 break;
990 }
991
992 case BTRFS_IOC_QGROUP_CREATE: { /* W */
993 struct btrfs_ioctl_qgroup_create_args args;
994
995 tprints(", ");
996 if (umove_or_printaddr(tcp, arg, &args))
997 break;
998
999 tprintf("{create=%" PRI__u64 ", qgroupid=%" PRI__u64 "}",
1000 args.create, args.qgroupid);
1001 break;
1002 }
1003
1004 case BTRFS_IOC_QGROUP_LIMIT: { /* R */
1005 struct btrfs_ioctl_qgroup_limit_args args;
1006
1007 if (entering(tcp))
1008 return 0;
1009
1010 tprints(", ");
1011 if (umove_or_printaddr(tcp, arg, &args))
1012 break;
1013
1014 tprintf("{qgroupid=%" PRI__u64 ", lim=", args.qgroupid);
1015 btrfs_print_qgroup_limit(&args.lim);
1016 tprints("}");
1017 break;
1018 }
1019
1020 case BTRFS_IOC_QUOTA_CTL: { /* W */
1021 struct btrfs_ioctl_quota_ctl_args args;
1022
1023 tprints(", ");
1024 if (umove_or_printaddr(tcp, arg, &args))
1025 break;
1026
1027 printxval64(btrfs_qgroup_ctl_cmds, args.cmd,
1028 "BTRFS_QUOTA_CTL_???");
1029 tprints("}");
1030
1031 break;
1032 }
1033
1034 case BTRFS_IOC_QUOTA_RESCAN: { /* W */
1035 struct btrfs_ioctl_quota_rescan_args args;
1036
1037 tprints(", ");
1038 if (umove_or_printaddr(tcp, arg, &args))
1039 break;
1040
1041 tprintf("{flags=%" PRIu64 "}", (uint64_t) args.flags);
1042 break;
1043 }
1044
1045 case BTRFS_IOC_QUOTA_RESCAN_STATUS: { /* R */
1046 struct btrfs_ioctl_quota_rescan_args args;
1047
1048 if (entering(tcp))
1049 return 0;
1050
1051 tprints(", ");
1052 if (umove_or_printaddr(tcp, arg, &args))
1053 break;
1054
1055 tprintf("{flags=%" PRIu64 ", progress=", (uint64_t) args.flags);
1056 btrfs_print_objectid(args.progress);
1057 tprints("}");
1058 break;
1059 }
1060
1061 case BTRFS_IOC_SET_RECEIVED_SUBVOL: { /* RW */
1062 struct_btrfs_ioctl_received_subvol_args args;
1063 char uuid[UUID_STRING_SIZE+1];
1064
1065 if (entering(tcp))
1066 tprints(", ");
1067 else if (syserror(tcp))
1068 break;
1069 else
1070 tprints(" => ");
1071
1072 if (umove_or_printaddr(tcp, arg, &args))
1073 break;
1074
1075 if (entering(tcp)) {
1076 btrfs_unparse_uuid((unsigned char *)args.uuid, uuid);
1077 tprintf("{uuid=%s, stransid=%" PRIu64
1078 ", stime=%" PRIu64 ".%u, flags=%" PRIu64
1079 "}", uuid, (uint64_t) args.stransid,
1080 (uint64_t) args.stime.sec, args.stime.nsec,
1081 (uint64_t) args.flags);
1082 return 0;
1083 }
1084 tprintf("{rtransid=%" PRIu64 ", rtime=%" PRIu64 ".%u}",
1085 (uint64_t) args.rtransid, (uint64_t) args.rtime.sec,
1086 args.rtime.nsec);
1087 break;
1088 }
1089
1090 case BTRFS_IOC_SCRUB: /* RW */
1091 case BTRFS_IOC_SCRUB_PROGRESS: { /* RW */
1092 struct btrfs_ioctl_scrub_args args;
1093
1094 if (entering(tcp))
1095 tprints(", ");
1096 else if (syserror(tcp))
1097 break;
1098 else
1099 tprints(" => ");
1100
1101 if (umove_or_printaddr(tcp, arg, &args))
1102 break;
1103
1104 if (entering(tcp)) {
1105 tprintf("{devid=%" PRI__u64, args.devid);
1106 if (code == BTRFS_IOC_SCRUB) {
1107 tprintf(", start=%" PRI__u64 ", end=",
1108 args.start);
1109 tprintf("%" PRI__u64, args.end);
1110 if (args.end == UINT64_MAX)
1111 tprints(" /* UINT64_MAX */");
1112 tprints(", flags=");
1113 printflags64(btrfs_scrub_flags, args.flags,
1114 "BTRFS_SCRUB_???");
1115 }
1116 tprints("}");
1117 return 0;
1118 }
1119 tprintf("{data_extents_scrubbed=%" PRI__u64
1120 ", tree_extents_scrubbed=%" PRI__u64
1121 ", data_bytes_scrubbed=%" PRI__u64
1122 ", tree_bytes_scrubbed=%" PRI__u64
1123 ", read_errors=%" PRI__u64
1124 ", csum_errors=%" PRI__u64
1125 ", verify_errors=%" PRI__u64
1126 ", no_csum=%" PRI__u64
1127 ", csum_discards=%" PRI__u64
1128 ", super_errors=%" PRI__u64
1129 ", malloc_errors=%" PRI__u64
1130 ", uncorrectable_errors=%" PRI__u64
1131 ", corrected_errors=%" PRI__u64
1132 ", last_physical=%" PRI__u64
1133 ", unverified_errors=%" PRI__u64 "}",
1134 args.progress.data_extents_scrubbed,
1135 args.progress.tree_extents_scrubbed,
1136 args.progress.data_bytes_scrubbed,
1137 args.progress.tree_bytes_scrubbed,
1138 args.progress.read_errors,
1139 args.progress.csum_errors,
1140 args.progress.verify_errors,
1141 args.progress.no_csum,
1142 args.progress.csum_discards,
1143 args.progress.super_errors,
1144 args.progress.malloc_errors,
1145 args.progress.uncorrectable_errors,
1146 args.progress.corrected_errors,
1147 args.progress.last_physical,
1148 args.progress.unverified_errors);
1149 break;
1150 }
1151
1152 case BTRFS_IOC_TREE_SEARCH: { /* RW */
1153 struct btrfs_ioctl_search_args args;
1154 uint64_t buf_offset;
1155
1156 if (entering(tcp))
1157 tprints(", ");
1158 else if (syserror(tcp))
1159 break;
1160 else
1161 tprints(" => ");
1162
1163 if (umove_or_printaddr(tcp, arg, &args))
1164 break;
1165
1166 buf_offset = offsetof(struct btrfs_ioctl_search_args, buf);
1167 btrfs_print_tree_search(tcp, &args.key, arg + buf_offset,
1168 sizeof(args.buf), false);
1169 if (entering(tcp))
1170 return 0;
1171 break;
1172 }
1173
1174 case BTRFS_IOC_TREE_SEARCH_V2: { /* RW */
1175 struct btrfs_ioctl_search_args_v2 args;
1176 uint64_t buf_offset;
1177
1178 if (entering(tcp))
1179 tprints(", ");
1180 else if (syserror(tcp)) {
1181 if (tcp->u_error == EOVERFLOW) {
1182 tprints(" => ");
1183 tcp->u_error = 0;
1184 if (!umove_or_printaddr(tcp, arg, &args))
1185 tprintf("{buf_size=%" PRIu64 "}",
1186 (uint64_t)args.buf_size);
1187 tcp->u_error = EOVERFLOW;
1188 }
1189 break;
1190 } else
1191 tprints(" => ");
1192
1193 if (umove_or_printaddr(tcp, arg, &args))
1194 break;
1195
1196 buf_offset = offsetof(struct btrfs_ioctl_search_args_v2, buf);
1197 btrfs_print_tree_search(tcp, &args.key, arg + buf_offset,
1198 args.buf_size, true);
1199 if (entering(tcp))
1200 return 0;
1201 break;
1202 }
1203
1204 case BTRFS_IOC_SEND: { /* W */
1205 struct_btrfs_ioctl_send_args args;
1206
1207 tprints(", ");
1208 if (umove_or_printaddr(tcp, arg, &args))
1209 break;
1210
1211 tprints("{send_fd=");
1212 printfd(tcp, args.send_fd);
1213 tprintf(", clone_sources_count=%" PRIu64 ", clone_sources=",
1214 (uint64_t) args.clone_sources_count);
1215
1216 if (abbrev(tcp))
1217 tprints("...");
1218 else {
1219 uint64_t record;
1220 print_array(tcp, ptr_to_kulong(args.clone_sources),
1221 args.clone_sources_count,
1222 &record, sizeof(record),
1223 umoven_or_printaddr,
1224 print_objectid_callback, 0);
1225 }
1226 tprints(", parent_root=");
1227 btrfs_print_objectid(args.parent_root);
1228 tprints(", flags=");
1229 printflags64(btrfs_send_flags, args.flags,
1230 "BTRFS_SEND_FLAGS_???");
1231 tprints("}");
1232 break;
1233 }
1234
1235 case BTRFS_IOC_SPACE_INFO: { /* RW */
1236 struct btrfs_ioctl_space_args args;
1237
1238 if (entering(tcp))
1239 tprints(", ");
1240 else if (syserror(tcp))
1241 break;
1242 else
1243 tprints(" => ");
1244
1245 if (umove_or_printaddr(tcp, arg, &args))
1246 break;
1247
1248 tprints("{");
1249 if (entering(tcp)) {
1250 tprintf("space_slots=%" PRI__u64 "}", args.space_slots);
1251 return 0;
1252 }
1253
1254 tprintf("total_spaces=%" PRI__u64, args.total_spaces);
1255
1256 if (args.space_slots == 0 && args.total_spaces) {
1257 tprints("}");
1258 break;
1259 }
1260
1261 tprints(", spaces=");
1262
1263 if (abbrev(tcp))
1264 tprints("...");
1265 else {
1266 struct btrfs_ioctl_space_info info;
1267 print_array(tcp, arg + offsetof(typeof(args), spaces),
1268 args.total_spaces,
1269 &info, sizeof(info), umoven_or_printaddr,
1270 print_btrfs_ioctl_space_info, 0);
1271 }
1272 tprints("}");
1273 break;
1274 }
1275
1276 case BTRFS_IOC_SNAP_CREATE:
1277 case BTRFS_IOC_RESIZE:
1278 case BTRFS_IOC_SCAN_DEV:
1279 case BTRFS_IOC_ADD_DEV:
1280 case BTRFS_IOC_RM_DEV:
1281 case BTRFS_IOC_SUBVOL_CREATE:
1282 case BTRFS_IOC_SNAP_DESTROY:
1283 case BTRFS_IOC_DEVICES_READY: { /* W */
1284 struct btrfs_ioctl_vol_args args;
1285
1286 tprints(", ");
1287 if (umove_or_printaddr(tcp, arg, &args))
1288 break;
1289
1290 tprints("{fd=");
1291 printfd(tcp, args.fd);
1292 tprints(", name=");
1293 print_quoted_string(args.name, sizeof(args.name),
1294 QUOTE_0_TERMINATED);
1295 tprints("}");
1296 break;
1297 }
1298
1299 case BTRFS_IOC_SNAP_CREATE_V2:
1300 case BTRFS_IOC_SUBVOL_CREATE_V2: { /* code is W, but is actually RW */
1301 struct_btrfs_ioctl_vol_args_v2 args;
1302
1303 if (entering(tcp))
1304 tprints(", ");
1305 else if (syserror(tcp))
1306 break;
1307 else
1308 tprints(" => ");
1309
1310 if (umove_or_printaddr(tcp, arg, &args))
1311 break;
1312
1313 if (entering(tcp)) {
1314 tprints("{fd=");
1315 printfd(tcp, args.fd);
1316 tprints(", flags=");
1317 printflags64(btrfs_snap_flags_v2, args.flags,
1318 "BTRFS_SUBVOL_???");
1319 if (args.flags & BTRFS_SUBVOL_QGROUP_INHERIT) {
1320 tprintf(", size=%" PRIu64 ", qgroup_inherit=",
1321 (uint64_t) args.size);
1322
1323 btrfs_print_qgroup_inherit(tcp,
1324 ptr_to_kulong(args.qgroup_inherit));
1325 }
1326 tprints(", name=");
1327 print_quoted_string(args.name, sizeof(args.name),
1328 QUOTE_0_TERMINATED);
1329 tprints("}");
1330 return 0;
1331 }
1332 tprintf("{transid=%" PRIu64 "}", (uint64_t) args.transid);
1333 break;
1334 }
1335
1336 case BTRFS_IOC_GET_FSLABEL: /* R */
1337 if (entering(tcp))
1338 return 0;
1339 /* fall through */
1340 case BTRFS_IOC_SET_FSLABEL: { /* W */
1341 char label[BTRFS_LABEL_SIZE];
1342
1343 tprints(", ");
1344 if (umove_or_printaddr(tcp, arg, &label))
1345 break;
1346 print_quoted_string(label, sizeof(label), QUOTE_0_TERMINATED);
1347 break;
1348 }
1349
1350 case BTRFS_IOC_CLONE: /* FICLONE */
1351 case BTRFS_IOC_CLONE_RANGE: /* FICLONERANGE */
1352 #ifdef BTRFS_IOC_FILE_EXTENT_SAME
1353 case BTRFS_IOC_FILE_EXTENT_SAME: /* FIDEDUPERANGE */
1354 #endif
1355 /*
1356 * FICLONE, FICLONERANGE, and FIDEDUPERANGE started out as
1357 * btrfs ioctls and the code was kept for the generic
1358 * implementations. We use the BTRFS_* names here because
1359 * they will be available on older systems.
1360 */
1361 return file_ioctl(tcp, code, arg);
1362
1363 default:
1364 return RVAL_DECODED;
1365 };
1366 return RVAL_DECODED | 1;
1367 }
1368 #endif /* HAVE_LINUX_BTRFS_H */
1369