1 /*
2 * Copyright (c) 2016 Jeff Mahoney <jeffm@suse.com>
3 * Copyright (c) 2016-2018 The strace developers.
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #include "defs.h"
30
31 #ifdef HAVE_LINUX_BTRFS_H
32
33 #include DEF_MPERS_TYPE(struct_btrfs_ioctl_dev_replace_args)
34 #include DEF_MPERS_TYPE(struct_btrfs_ioctl_send_args)
35 #include DEF_MPERS_TYPE(struct_btrfs_ioctl_received_subvol_args)
36 #include DEF_MPERS_TYPE(struct_btrfs_ioctl_vol_args_v2)
37
38 # include <linux/btrfs.h>
39
40 typedef struct btrfs_ioctl_dev_replace_args
41 struct_btrfs_ioctl_dev_replace_args;
42 typedef struct btrfs_ioctl_send_args
43 struct_btrfs_ioctl_send_args;
44 typedef struct btrfs_ioctl_received_subvol_args
45 struct_btrfs_ioctl_received_subvol_args;
46 typedef struct btrfs_ioctl_vol_args_v2
47 struct_btrfs_ioctl_vol_args_v2;
48
49 #endif /* HAVE_LINUX_BTRFS_H */
50
51 #include MPERS_DEFS
52
53 #ifdef HAVE_LINUX_BTRFS_H
54
55 #include "print_fields.h"
56 #include <linux/fs.h>
57
58 /*
59 * Prior to Linux 3.12, the BTRFS_IOC_DEFAULT_SUBVOL used u64 in
60 * its definition, which isn't exported by the kernel.
61 */
62 typedef __u64 u64;
63
64 #ifndef HAVE_STRUCT_BTRFS_IOCTL_FEATURE_FLAGS_COMPAT_FLAGS
65 struct btrfs_ioctl_feature_flags {
66 uint64_t compat_flags;
67 uint64_t compat_ro_flags;
68 uint64_t incompat_flags;
69 };
70 #endif
71
72 #ifndef HAVE_STRUCT_BTRFS_IOCTL_DEFRAG_RANGE_ARGS_START
73 struct btrfs_ioctl_defrag_range_args {
74 uint64_t start;
75 uint64_t len;
76 uint64_t flags;
77 uint32_t extent_thresh;
78 uint32_t compress_type;
79 uint32_t unused[4];
80 };
81 #endif
82
83 #ifndef BTRFS_LABEL_SIZE
84 # define BTRFS_LABEL_SIZE 256
85 #endif
86
87 #ifndef BTRFS_FIRST_FREE_OBJECTID
88 # define BTRFS_FIRST_FREE_OBJECTID 256ULL
89 #endif
90
91 #ifndef BTRFS_IOC_QUOTA_RESCAN
92 struct btrfs_ioctl_quota_rescan_args {
93 uint64_t flags, progress, reserved[6];
94 };
95 # define BTRFS_IOC_QUOTA_RESCAN _IOW(BTRFS_IOCTL_MAGIC, 44, \
96 struct btrfs_ioctl_quota_rescan_args)
97 # define BTRFS_IOC_QUOTA_RESCAN_STATUS _IOR(BTRFS_IOCTL_MAGIC, 45, \
98 struct btrfs_ioctl_quota_rescan_args)
99 #endif
100
101 #ifndef BTRFS_IOC_QUOTA_RESCAN_WAIT
102 # define BTRFS_IOC_QUOTA_RESCAN_WAIT _IO(BTRFS_IOCTL_MAGIC, 46)
103 #endif
104
105 #ifndef BTRFS_IOC_GET_FEATURES
106 # define BTRFS_IOC_GET_FEATURES _IOR(BTRFS_IOCTL_MAGIC, 57, \
107 struct btrfs_ioctl_feature_flags)
108 # define BTRFS_IOC_SET_FEATURES _IOW(BTRFS_IOCTL_MAGIC, 57, \
109 struct btrfs_ioctl_feature_flags[2])
110 # define BTRFS_IOC_GET_SUPPORTED_FEATURES _IOR(BTRFS_IOCTL_MAGIC, 57, \
111 struct btrfs_ioctl_feature_flags[3])
112 #endif
113
114 #ifndef BTRFS_IOC_TREE_SEARCH_V2
115 # define BTRFS_IOC_TREE_SEARCH_V2 _IOWR(BTRFS_IOCTL_MAGIC, 17, \
116 struct btrfs_ioctl_search_args_v2)
117 struct btrfs_ioctl_search_args_v2 {
118 struct btrfs_ioctl_search_key key; /* in/out - search parameters */
119 uint64_t buf_size; /* in - size of buffer
120 * out - on EOVERFLOW: needed size
121 * to store item */
122 uint64_t buf[0]; /* out - found items */
123 };
124 #endif
125
126 #include "xlat/btrfs_balance_args.h"
127 #include "xlat/btrfs_balance_ctl_cmds.h"
128 #include "xlat/btrfs_balance_flags.h"
129 #include "xlat/btrfs_balance_state.h"
130 #include "xlat/btrfs_compress_types.h"
131 #include "xlat/btrfs_defrag_flags.h"
132 #include "xlat/btrfs_dev_replace_cmds.h"
133 #include "xlat/btrfs_dev_replace_results.h"
134 #include "xlat/btrfs_dev_replace_state.h"
135 #include "xlat/btrfs_dev_stats_flags.h"
136 #include "xlat/btrfs_dev_stats_values.h"
137 #include "xlat/btrfs_features_compat.h"
138 #include "xlat/btrfs_features_compat_ro.h"
139 #include "xlat/btrfs_features_incompat.h"
140 #include "xlat/btrfs_key_types.h"
141 #include "xlat/btrfs_qgroup_ctl_cmds.h"
142 #include "xlat/btrfs_qgroup_inherit_flags.h"
143 #include "xlat/btrfs_qgroup_limit_flags.h"
144 #include "xlat/btrfs_qgroup_status_flags.h"
145 #include "xlat/btrfs_scrub_flags.h"
146 #include "xlat/btrfs_send_flags.h"
147 #include "xlat/btrfs_snap_flags_v2.h"
148 #include "xlat/btrfs_space_info_flags.h"
149 #include "xlat/btrfs_tree_objectids.h"
150
151 static inline char
prnibble(char v)152 prnibble(char v)
153 {
154 if (v >= 10)
155 return 'a' + (v - 10);
156 return '0' + v;
157 }
158
159 /* 8-4-4-4-12 = 36 characters */
160 #define UUID_STRING_SIZE 36
161
162 /* Formats uuid, returns 0 if it's all zeroes */
163 static int
btrfs_unparse_uuid(unsigned char * uuid,char * out)164 btrfs_unparse_uuid(unsigned char *uuid, char *out)
165 {
166 int i;
167 int ret = 0;
168 for (i = 0; i < BTRFS_UUID_SIZE; i++) {
169 if (i == 4 || i == 6 || i == 8 || i == 10)
170 *out++ = '-';
171 *out++ = prnibble(uuid[i] >> 4);
172 *out++ = prnibble(uuid[i] & 0xf);
173 if (uuid[i])
174 ret = 1;
175 }
176 *out = '\0';
177 return ret;
178 }
179
180 static void
print_u64(const char * name,uint64_t value)181 print_u64(const char *name, uint64_t value)
182 {
183 tprintf(", %s=%" PRIu64, name, value);
184 if (value == UINT64_MAX)
185 tprints_comment("UINT64_MAX");
186 }
187
188 #define print_member_u64(obj, name) print_u64(#name, obj->name)
189
190 static void
btrfs_print_balance_args(const char * name,const struct btrfs_balance_args * bba)191 btrfs_print_balance_args(const char *name, const struct btrfs_balance_args *bba)
192 {
193 tprintf(", %s={profiles=", name);
194 printflags64(btrfs_space_info_flags, bba->profiles,
195 "BTRFS_BLOCK_GROUP_???");
196 print_member_u64(bba, usage);
197 print_member_u64(bba, devid);
198 print_member_u64(bba, pstart);
199 print_member_u64(bba, pend);
200 print_member_u64(bba, vstart);
201 print_member_u64(bba, vend);
202 print_member_u64(bba, target);
203 tprints(", flags=");
204 printflags64(btrfs_balance_args, bba->flags, "BTRFS_BALANCE_ARGS_???");
205 tprints("}");
206 }
207
208 static void
btrfs_print_balance(struct tcb * const tcp,const kernel_ulong_t arg,bool out)209 btrfs_print_balance(struct tcb *const tcp, const kernel_ulong_t arg, bool out)
210 {
211 struct btrfs_ioctl_balance_args balance_args;
212
213 if (umove_or_printaddr(tcp, arg, &balance_args))
214 return;
215
216 tprints("{flags=");
217 printflags64(btrfs_balance_flags, balance_args.flags,
218 "BTRFS_BALANCE_???");
219 if (out) {
220 tprints(", state=");
221 printflags64(btrfs_balance_state, balance_args.state,
222 "BTRFS_BALANCE_STATE_???");
223 }
224
225 if (balance_args.flags & BTRFS_BALANCE_DATA)
226 btrfs_print_balance_args("data", &balance_args.data);
227 if (balance_args.flags & BTRFS_BALANCE_METADATA)
228 btrfs_print_balance_args("meta", &balance_args.meta);
229 if (balance_args.flags & BTRFS_BALANCE_SYSTEM)
230 btrfs_print_balance_args("sys", &balance_args.sys);
231 tprints("}");
232 }
233
234 static void
btrfs_print_features(const struct btrfs_ioctl_feature_flags * flags)235 btrfs_print_features(const struct btrfs_ioctl_feature_flags *flags)
236 {
237 tprints("{compat_flags=");
238 printflags64(btrfs_features_compat, flags->compat_flags,
239 "BTRFS_FEATURE_COMPAT_???");
240
241 tprints(", compat_ro_flags=");
242 printflags64(btrfs_features_compat_ro, flags->compat_ro_flags,
243 "BTRFS_FEATURE_COMPAT_RO_???");
244
245 tprints(", incompat_flags=");
246 printflags64(btrfs_features_incompat, flags->incompat_flags,
247 "BTRFS_FEATURE_INCOMPAT_???");
248 tprints("}");
249 }
250
251 static void
btrfs_print_qgroup_limit(const struct btrfs_qgroup_limit * lim)252 btrfs_print_qgroup_limit(const struct btrfs_qgroup_limit *lim)
253 {
254 tprints("{flags=");
255 printflags64(btrfs_qgroup_limit_flags, lim->flags,
256 "BTRFS_QGROUP_LIMIT_???");
257 tprintf(", max_rfer=%" PRI__u64 ", max_excl=%" PRI__u64
258 ", rsv_rfer=%" PRI__u64 ", rsv_excl=%" PRI__u64 "}",
259 lim->max_rfer, lim->max_excl,
260 lim->rsv_rfer, lim->rsv_excl);
261 }
262
263 static void
btrfs_print_key_type(uint32_t type)264 btrfs_print_key_type(uint32_t type)
265 {
266 tprintf("%u", type);
267 tprints_comment(xlookup(btrfs_key_types, type));
268 }
269
270 static void
btrfs_print_objectid(uint64_t objectid)271 btrfs_print_objectid(uint64_t objectid)
272 {
273 tprintf("%" PRIu64, objectid);
274 tprints_comment(xlookup(btrfs_tree_objectids, objectid));
275 }
276
277 static void
btrfs_print_data_container_header(const struct btrfs_data_container * container)278 btrfs_print_data_container_header(const struct btrfs_data_container *container)
279 {
280 tprintf("{bytes_left=%u, bytes_missing=%u"
281 ", elem_cnt=%u, elem_missed=%u, val=",
282 container->bytes_left, container->bytes_missing,
283 container->elem_cnt, container->elem_missed);
284 }
285
286 static void
btrfs_print_data_container_footer(void)287 btrfs_print_data_container_footer(void)
288 {
289 tprints("}");
290 }
291
292 static bool
print_btrfs_data_container_logical_ino(struct tcb * tcp,void * elem_buf,size_t elem_size,void * data)293 print_btrfs_data_container_logical_ino(struct tcb *tcp, void *elem_buf,
294 size_t elem_size, void *data)
295 {
296 const uint64_t *const record = elem_buf;
297
298 tprintf("{inum=%" PRIu64 ", offset=%" PRIu64 ", root=%" PRIu64 "}",
299 record[0], record[1], record[2]);
300
301 return true;
302 }
303
304 static void
btrfs_print_logical_ino_container(struct tcb * tcp,const uint64_t inodes_addr)305 btrfs_print_logical_ino_container(struct tcb *tcp,
306 const uint64_t inodes_addr)
307 {
308 struct btrfs_data_container container;
309
310 if (umove_or_printaddr(tcp, inodes_addr, &container))
311 return;
312
313 btrfs_print_data_container_header(&container);
314
315 if (abbrev(tcp)) {
316 tprints("...");
317 } else {
318 const uint64_t val_addr =
319 inodes_addr + offsetof(typeof(container), val);
320 uint64_t record[3];
321 print_array(tcp, val_addr, container.elem_cnt / 3,
322 record, sizeof(record),
323 umoven_or_printaddr,
324 print_btrfs_data_container_logical_ino, 0);
325 }
326
327 btrfs_print_data_container_footer();
328 }
329
330 static bool
print_btrfs_data_container_ino_path(struct tcb * tcp,void * elem_buf,size_t elem_size,void * data)331 print_btrfs_data_container_ino_path(struct tcb *tcp, void *elem_buf,
332 size_t elem_size, void *data)
333 {
334 const uint64_t *const offset = elem_buf;
335 const uint64_t *const val_addr = data;
336
337 printpath(tcp, *val_addr + *offset);
338
339 return true;
340 }
341
342 static void
btrfs_print_ino_path_container(struct tcb * tcp,const uint64_t fspath_addr)343 btrfs_print_ino_path_container(struct tcb *tcp,
344 const uint64_t fspath_addr)
345 {
346 struct btrfs_data_container container;
347
348 if (umove_or_printaddr(tcp, fspath_addr, &container))
349 return;
350
351 btrfs_print_data_container_header(&container);
352
353 if (abbrev(tcp)) {
354 tprints("...");
355 } else {
356 uint64_t val_addr =
357 fspath_addr + offsetof(typeof(container), val);
358 uint64_t offset;
359 print_array(tcp, val_addr, container.elem_cnt,
360 &offset, sizeof(offset),
361 umoven_or_printaddr,
362 print_btrfs_data_container_ino_path, &val_addr);
363 }
364
365 btrfs_print_data_container_footer();
366 }
367
368 static bool
print_uint64(struct tcb * tcp,void * elem_buf,size_t elem_size,void * data)369 print_uint64(struct tcb *tcp, void *elem_buf, size_t elem_size, void *data)
370 {
371 tprintf("%" PRIu64, *(uint64_t *) elem_buf);
372
373 return true;
374 }
375
376 static void
btrfs_print_qgroup_inherit(struct tcb * const tcp,const kernel_ulong_t qgi_addr)377 btrfs_print_qgroup_inherit(struct tcb *const tcp, const kernel_ulong_t qgi_addr)
378 {
379 struct btrfs_qgroup_inherit inherit;
380
381 if (umove_or_printaddr(tcp, qgi_addr, &inherit))
382 return;
383
384 tprints("{flags=");
385 printflags64(btrfs_qgroup_inherit_flags, inherit.flags,
386 "BTRFS_QGROUP_INHERIT_???");
387 tprintf(", num_qgroups=%" PRI__u64 ", num_ref_copies=%" PRI__u64
388 ", num_excl_copies=%" PRI__u64 ", lim=",
389 inherit.num_qgroups, inherit.num_ref_copies,
390 inherit.num_excl_copies);
391
392 btrfs_print_qgroup_limit(&inherit.lim);
393
394 tprints(", qgroups=");
395
396 if (abbrev(tcp)) {
397 tprints("...");
398 } else {
399 uint64_t record;
400 print_array(tcp, qgi_addr + offsetof(typeof(inherit), qgroups),
401 inherit.num_qgroups, &record, sizeof(record),
402 umoven_or_printaddr, print_uint64, 0);
403 }
404 tprints("}");
405 }
406
407 static void
print_key_value_internal(struct tcb * tcp,const char * name,uint64_t value)408 print_key_value_internal(struct tcb *tcp, const char *name, uint64_t value)
409 {
410 if (value) {
411 tprintf(", %s=%" PRIu64, name, value);
412 if (value == UINT64_MAX)
413 tprints_comment("UINT64_MAX");
414 }
415 }
416 #define print_key_value(tcp, key, name) \
417 print_key_value_internal((tcp), #name, (key)->name)
418
419 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)420 btrfs_print_tree_search(struct tcb *tcp, struct btrfs_ioctl_search_key *key,
421 uint64_t buf_addr, uint64_t buf_size, bool print_size)
422 {
423 if (entering(tcp)) {
424 tprints("{key={tree_id=");
425 btrfs_print_objectid(key->tree_id);
426
427 if (key->min_objectid != BTRFS_FIRST_FREE_OBJECTID ||
428 !abbrev(tcp)) {
429 tprints(", min_objectid=");
430 btrfs_print_objectid(key->min_objectid);
431 }
432
433 if (key->max_objectid != BTRFS_LAST_FREE_OBJECTID ||
434 !abbrev(tcp)) {
435 tprints(", max_objectid=");
436 btrfs_print_objectid(key->max_objectid);
437 }
438
439 print_key_value(tcp, key, min_offset);
440 print_key_value(tcp, key, max_offset);
441 print_key_value(tcp, key, min_transid);
442 print_key_value(tcp, key, max_transid);
443
444 tprints(", min_type=");
445 btrfs_print_key_type(key->min_type);
446 tprints(", max_type=");
447 btrfs_print_key_type(key->max_type);
448 tprintf(", nr_items=%u}", key->nr_items);
449 if (print_size)
450 tprintf(", buf_size=%" PRIu64, buf_size);
451 tprints("}");
452 } else {
453 tprintf("{key={nr_items=%u}", key->nr_items);
454 if (print_size)
455 tprintf(", buf_size=%" PRIu64, buf_size);
456 tprints(", buf=");
457 if (abbrev(tcp))
458 tprints("...");
459 else {
460 uint64_t i;
461 uint64_t off = 0;
462 tprints("[");
463 for (i = 0; i < key->nr_items; i++) {
464 struct btrfs_ioctl_search_header sh;
465 uint64_t addr = buf_addr + off;
466 if (i)
467 tprints(", ");
468 if (i > max_strlen ||
469 umove(tcp, addr, &sh)) {
470 tprints("...");
471 break;
472 }
473 tprintf("{transid=%" PRI__u64 ", objectid=",
474 sh.transid);
475 btrfs_print_objectid(sh.objectid);
476 tprintf(", offset=%" PRI__u64 ", type=", sh.offset);
477 btrfs_print_key_type(sh.type);
478 tprintf(", len=%u}", sh.len);
479 off += sizeof(sh) + sh.len;
480
481 }
482 tprints("]");
483 }
484 tprints("}");
485 }
486 }
487
488 static bool
print_objectid_callback(struct tcb * tcp,void * elem_buf,size_t elem_size,void * data)489 print_objectid_callback(struct tcb *tcp, void *elem_buf,
490 size_t elem_size, void *data)
491 {
492 btrfs_print_objectid(*(uint64_t *) elem_buf);
493
494 return true;
495 }
496
497 static bool
print_btrfs_ioctl_space_info(struct tcb * tcp,void * elem_buf,size_t elem_size,void * data)498 print_btrfs_ioctl_space_info(struct tcb *tcp, void *elem_buf,
499 size_t elem_size, void *data)
500 {
501 const struct btrfs_ioctl_space_info *info = elem_buf;
502
503 tprints("{flags=");
504 printflags64(btrfs_space_info_flags, info->flags,
505 "BTRFS_SPACE_INFO_???");
506 tprintf(", total_bytes=%" PRI__u64 ", used_bytes=%" PRI__u64 "}",
507 info->total_bytes, info->used_bytes);
508
509 return true;
510 }
511
MPERS_PRINTER_DECL(int,btrfs_ioctl,struct tcb * const tcp,const unsigned int code,const kernel_ulong_t arg)512 MPERS_PRINTER_DECL(int, btrfs_ioctl,
513 struct tcb *const tcp, const unsigned int code,
514 const kernel_ulong_t arg)
515 {
516 switch (code) {
517 /* Take no arguments; command only. */
518 case BTRFS_IOC_TRANS_START:
519 case BTRFS_IOC_TRANS_END:
520 case BTRFS_IOC_SYNC:
521 case BTRFS_IOC_SCRUB_CANCEL:
522 case BTRFS_IOC_QUOTA_RESCAN_WAIT:
523 /*
524 * The codes for these ioctls are based on each accepting a
525 * vol_args but none of them actually consume an argument.
526 */
527 case BTRFS_IOC_DEFRAG:
528 case BTRFS_IOC_BALANCE:
529 break;
530
531 /* takes a signed int */
532 case BTRFS_IOC_BALANCE_CTL:
533 tprints(", ");
534 printxval(btrfs_balance_ctl_cmds, arg, "BTRFS_BALANCE_CTL_???");
535 break;
536
537 /* returns a 64 */
538 case BTRFS_IOC_START_SYNC: /* R */
539 if (entering(tcp))
540 return 0;
541 /* fall through */
542 /* takes a u64 */
543 case BTRFS_IOC_DEFAULT_SUBVOL: /* W */
544 case BTRFS_IOC_WAIT_SYNC: /* W */
545 tprints(", ");
546 printnum_int64(tcp, arg, "%" PRIu64);
547 break;
548
549 /* u64 but describe a flags bitfield; we can make that symbolic */
550 case BTRFS_IOC_SUBVOL_GETFLAGS: { /* R */
551 uint64_t flags;
552
553 if (entering(tcp))
554 return 0;
555
556 tprints(", ");
557
558 if (umove_or_printaddr(tcp, arg, &flags))
559 break;
560
561 printflags64(btrfs_snap_flags_v2, flags, "BTRFS_SUBVOL_???");
562 break;
563 }
564
565 case BTRFS_IOC_SUBVOL_SETFLAGS: { /* W */
566 uint64_t flags;
567
568 tprints(", ");
569
570 if (umove_or_printaddr(tcp, arg, &flags))
571 break;
572
573 printflags64(btrfs_snap_flags_v2, flags, "BTRFS_SUBVOL_???");
574 break;
575 }
576
577 /* More complex types */
578 case BTRFS_IOC_BALANCE_V2: /* RW */
579 if (entering(tcp)) {
580 tprints(", ");
581 btrfs_print_balance(tcp, arg, false);
582 return 0;
583 }
584
585 if (syserror(tcp))
586 break;
587
588 tprints(" => ");
589 btrfs_print_balance(tcp, arg, true);
590 break;
591 case BTRFS_IOC_BALANCE_PROGRESS: /* R */
592 if (entering(tcp))
593 return 0;
594
595 tprints(", ");
596 btrfs_print_balance(tcp, arg, true);
597 break;
598
599 case BTRFS_IOC_DEFRAG_RANGE: { /* W */
600 struct btrfs_ioctl_defrag_range_args args;
601
602 tprints(", ");
603
604 if (umove_or_printaddr(tcp, arg, &args))
605 break;
606
607 tprintf("{start=%" PRIu64 ", len=", (uint64_t)args.start);
608
609 tprintf("%" PRIu64, (uint64_t) args.len);
610 if (args.len == UINT64_MAX)
611 tprints_comment("UINT64_MAX");
612
613 tprints(", flags=");
614 printflags64(btrfs_defrag_flags, args.flags,
615 "BTRFS_DEFRAG_RANGE_???");
616 tprintf(", extent_thresh=%u, compress_type=",
617 args.extent_thresh);
618 printxval(btrfs_compress_types, args.compress_type,
619 "BTRFS_COMPRESS_???");
620 tprints("}");
621 break;
622 }
623
624 case BTRFS_IOC_DEV_INFO: { /* RW */
625 struct btrfs_ioctl_dev_info_args args;
626 char uuid[UUID_STRING_SIZE+1];
627 int valid;
628
629 if (entering(tcp))
630 tprints(", ");
631 else if (syserror(tcp))
632 break;
633 else
634 tprints(" => ");
635 if (umove_or_printaddr(tcp, arg, &args))
636 break;
637 tprints("{");
638
639 valid = btrfs_unparse_uuid(args.uuid, uuid);
640 if (entering(tcp)) {
641 tprintf("devid=%" PRI__u64, args.devid);
642 if (valid)
643 tprintf(", uuid=%s", uuid);
644 tprints("}");
645 return 0;
646 }
647 if (valid)
648 tprintf("uuid=%s, ", uuid);
649 tprintf("bytes_used=%" PRI__u64
650 ", total_bytes=%" PRI__u64,
651 args.bytes_used, args.total_bytes);
652 PRINT_FIELD_CSTRING(", ", args, path);
653 tprints("}");
654 break;
655 }
656
657 case BTRFS_IOC_DEV_REPLACE: { /* RW */
658 struct_btrfs_ioctl_dev_replace_args args;
659
660 if (entering(tcp))
661 tprints(", ");
662 else if (syserror(tcp))
663 break;
664 else
665 tprints(" => ");
666
667 if (umove_or_printaddr(tcp, arg, &args))
668 break;
669
670 if (entering(tcp)) {
671 tprints("{cmd=");
672 printxval64(btrfs_dev_replace_cmds, args.cmd,
673 "BTRFS_IOCTL_DEV_REPLACE_CMD_???");
674 if (args.cmd == BTRFS_IOCTL_DEV_REPLACE_CMD_START) {
675 const char *str;
676 tprintf(", start={srcdevid=%" PRIu64
677 ", cont_reading_from_srcdev_mode=%" PRIu64
678 ", srcdev_name=",
679 (uint64_t) args.start.srcdevid,
680 (uint64_t) args.start.cont_reading_from_srcdev_mode);
681
682 str = (const char *) args.start.srcdev_name;
683 print_quoted_cstring(str,
684 sizeof(args.start.srcdev_name));
685 tprints(", tgtdev_name=");
686 str = (const char *) args.start.tgtdev_name;
687 print_quoted_cstring(str,
688 sizeof(args.start.tgtdev_name));
689 tprints("}");
690
691 }
692 tprints("}");
693 return 0;
694 }
695
696 tprints("{result=");
697 printxval64(btrfs_dev_replace_results, args.result,
698 "BTRFS_IOCTL_DEV_REPLACE_RESULT_???");
699 if (args.cmd == BTRFS_IOCTL_DEV_REPLACE_CMD_STATUS) {
700 tprints(", ");
701 printxval64(btrfs_dev_replace_state,
702 args.status.replace_state,
703 "BTRFS_IOCTL_DEV_REPLACE_STATE_???");
704 tprintf(", progress_1000=%" PRIu64,
705 (uint64_t) args.status.progress_1000);
706
707 if (args.status.progress_1000 <= 1000)
708 tprintf_comment("%u.%u%%",
709 (unsigned) args.status.progress_1000 / 10,
710 (unsigned) args.status.progress_1000 % 10);
711
712 tprintf(", time_started=%" PRIu64,
713 (uint64_t) args.status.time_started);
714 tprints_comment(sprinttime(args.status.time_started));
715
716 tprintf(", time_stopped=%" PRIu64,
717 (uint64_t) args.status.time_stopped);
718 tprints_comment(sprinttime(args.status.time_stopped));
719
720 tprintf(", num_write_errors=%" PRIu64
721 ", num_uncorrectable_read_errors=%" PRIu64,
722 (uint64_t) args.status.num_write_errors,
723 (uint64_t) args.status.num_uncorrectable_read_errors);
724 }
725 tprints("}");
726 break;
727 }
728
729 case BTRFS_IOC_GET_FEATURES: { /* R */
730 struct btrfs_ioctl_feature_flags flags;
731
732 if (entering(tcp))
733 return 0;
734
735 tprints(", ");
736 if (umove_or_printaddr(tcp, arg, &flags))
737 break;
738
739 btrfs_print_features(&flags);
740 break;
741 }
742
743 case BTRFS_IOC_SET_FEATURES: { /* W */
744 struct btrfs_ioctl_feature_flags flarg[2];
745
746 tprints(", ");
747
748 if (umove_or_printaddr(tcp, arg, &flarg))
749 break;
750
751 tprints("[");
752 btrfs_print_features(&flarg[0]);
753 tprints(", ");
754 btrfs_print_features(&flarg[1]);
755 tprints("]");
756 break;
757 }
758
759 case BTRFS_IOC_GET_SUPPORTED_FEATURES: { /* R */
760 struct btrfs_ioctl_feature_flags flarg[3];
761
762 if (entering(tcp))
763 return 0;
764
765 tprints(", ");
766 if (umove_or_printaddr(tcp, arg, &flarg))
767 break;
768
769 tprints("[");
770 btrfs_print_features(&flarg[0]);
771 tprints_comment("supported");
772
773 tprints(", ");
774 btrfs_print_features(&flarg[1]);
775 tprints_comment("safe to set");
776
777 tprints(", ");
778 btrfs_print_features(&flarg[2]);
779 tprints_comment("safe to clear");
780 tprints("]");
781
782 break;
783 }
784
785 case BTRFS_IOC_FS_INFO: { /* R */
786 struct btrfs_ioctl_fs_info_args args;
787 char uuid[UUID_STRING_SIZE+1];
788 uint32_t nodesize, sectorsize, clone_alignment;
789 #ifndef HAVE_STRUCT_BTRFS_IOCTL_FS_INFO_ARGS_NODESIZE
790 uint32_t *reserved32;
791 #endif
792
793 if (entering(tcp))
794 return 0;
795
796 tprints(", ");
797 if (umove_or_printaddr(tcp, arg, &args))
798 break;
799
800 #ifdef HAVE_STRUCT_BTRFS_IOCTL_FS_INFO_ARGS_NODESIZE
801 nodesize = args.nodesize,
802 sectorsize = args.sectorsize,
803 clone_alignment = args.clone_alignment;
804 #else
805 reserved32 = (void *) args.reserved;
806 nodesize = reserved32[0];
807 sectorsize = reserved32[1];
808 clone_alignment = reserved32[2];
809 #endif
810 btrfs_unparse_uuid(args.fsid, uuid);
811
812 tprints("{");
813 tprintf("max_id=%" PRI__u64 ", num_devices=%" PRI__u64
814 ", fsid=%s, nodesize=%u, sectorsize=%u"
815 ", clone_alignment=%u",
816 args.max_id, args.num_devices, uuid,
817 nodesize, sectorsize, clone_alignment);
818 tprints("}");
819 break;
820 }
821
822 case BTRFS_IOC_GET_DEV_STATS: { /* RW */
823 struct btrfs_ioctl_get_dev_stats args;
824 uint64_t i;
825
826 if (entering(tcp))
827 tprints(", ");
828 else if (syserror(tcp))
829 break;
830 else
831 tprints(" => ");
832 if (umove_or_printaddr(tcp, arg, &args))
833 break;
834
835 tprints("{");
836
837 if (entering(tcp))
838 tprintf("devid=%" PRI__u64 ", ", args.devid);
839
840 tprintf("nr_items=%" PRI__u64 ", flags=", args.nr_items);
841 printflags64(btrfs_dev_stats_flags, args.flags,
842 "BTRFS_DEV_STATS_???");
843
844 if (entering(tcp)) {
845 tprints("}");
846 return 0;
847 }
848
849 /*
850 * The structure has a 1k limit; Let's make sure we don't
851 * go off into the middle of nowhere with a bad nr_items
852 * value.
853 */
854 tprints(", [");
855 for (i = 0; i < args.nr_items; i++) {
856 if (i)
857 tprints(", ");
858 if (i >= ARRAY_SIZE(args.values)) {
859 tprints("...");
860 break;
861 }
862 tprintf("%" PRI__u64, args.values[i]);
863 tprints_comment(xlookup(btrfs_dev_stats_values, i));
864 }
865 tprints("]}");
866 break;
867 }
868
869 case BTRFS_IOC_INO_LOOKUP: { /* RW */
870 struct btrfs_ioctl_ino_lookup_args args;
871
872 if (entering(tcp))
873 tprints(", ");
874 else if (syserror(tcp))
875 break;
876 else
877 tprints(" => ");
878
879 if (umove_or_printaddr(tcp, arg, &args))
880 break;
881
882 if (entering(tcp)) {
883 /* Use subvolume id of the containing root */
884 if (args.treeid == 0)
885 set_tcb_priv_ulong(tcp, 1);
886
887 tprints("{treeid=");
888 btrfs_print_objectid(args.treeid);
889 tprints(", objectid=");
890 btrfs_print_objectid(args.objectid);
891 tprints("}");
892 return 0;
893 }
894
895 tprints("{");
896 if (get_tcb_priv_ulong(tcp)) {
897 tprints("treeid=");
898 btrfs_print_objectid(args.treeid);
899 tprints(", ");
900 }
901
902 PRINT_FIELD_CSTRING("", args, name);
903 tprints("}");
904 break;
905 }
906
907 case BTRFS_IOC_INO_PATHS: { /* RW */
908 struct btrfs_ioctl_ino_path_args args;
909
910 if (entering(tcp))
911 tprints(", ");
912 else if (syserror(tcp))
913 break;
914 else
915 tprints(" => ");
916
917 if (umove_or_printaddr(tcp, arg, &args))
918 break;
919
920 tprints("{");
921
922 if (entering(tcp)) {
923 tprintf("inum=%" PRI__u64 ", size=%" PRI__u64,
924 args.inum, args.size);
925 tprintf(", fspath=0x%" PRI__x64 "}", args.fspath);
926 return 0;
927 }
928
929 tprints("fspath=");
930 btrfs_print_ino_path_container(tcp, args.fspath);
931
932 tprints("}");
933 break;
934 }
935
936 case BTRFS_IOC_LOGICAL_INO: { /* RW */
937 struct btrfs_ioctl_logical_ino_args args;
938
939 if (entering(tcp))
940 tprints(", ");
941 else if (syserror(tcp))
942 break;
943 else
944 tprints(" => ");
945
946 if (umove_or_printaddr(tcp, arg, &args))
947 break;
948
949 tprints("{");
950
951 if (entering(tcp)) {
952 tprintf("logical=%" PRI__u64 ", size=%" PRI__u64,
953 args.logical, args.size);
954 tprintf(", inodes=0x%" PRI__x64 "}", args.inodes);
955 return 0;
956 }
957
958 tprints("inodes=");
959 btrfs_print_logical_ino_container(tcp, args.inodes);
960
961 tprints("}");
962 break;
963 }
964
965 case BTRFS_IOC_QGROUP_ASSIGN: { /* W */
966 struct btrfs_ioctl_qgroup_assign_args args;
967
968 tprints(", ");
969 if (umove_or_printaddr(tcp, arg, &args))
970 break;
971
972 tprintf("{assign=%" PRI__u64 ", src=%" PRI__u64
973 ", dst=%" PRI__u64 "}",
974 args.assign, args.src, args.dst);
975 break;
976 }
977
978 case BTRFS_IOC_QGROUP_CREATE: { /* W */
979 struct btrfs_ioctl_qgroup_create_args args;
980
981 tprints(", ");
982 if (umove_or_printaddr(tcp, arg, &args))
983 break;
984
985 tprintf("{create=%" PRI__u64 ", qgroupid=%" PRI__u64 "}",
986 args.create, args.qgroupid);
987 break;
988 }
989
990 case BTRFS_IOC_QGROUP_LIMIT: { /* R */
991 struct btrfs_ioctl_qgroup_limit_args args;
992
993 if (entering(tcp))
994 return 0;
995
996 tprints(", ");
997 if (umove_or_printaddr(tcp, arg, &args))
998 break;
999
1000 tprintf("{qgroupid=%" PRI__u64 ", lim=", args.qgroupid);
1001 btrfs_print_qgroup_limit(&args.lim);
1002 tprints("}");
1003 break;
1004 }
1005
1006 case BTRFS_IOC_QUOTA_CTL: { /* W */
1007 struct btrfs_ioctl_quota_ctl_args args;
1008
1009 tprints(", ");
1010 if (umove_or_printaddr(tcp, arg, &args))
1011 break;
1012
1013 printxval64(btrfs_qgroup_ctl_cmds, args.cmd,
1014 "BTRFS_QUOTA_CTL_???");
1015 tprints("}");
1016
1017 break;
1018 }
1019
1020 case BTRFS_IOC_QUOTA_RESCAN: { /* W */
1021 struct btrfs_ioctl_quota_rescan_args args;
1022
1023 tprints(", ");
1024 if (umove_or_printaddr(tcp, arg, &args))
1025 break;
1026
1027 tprintf("{flags=%" PRIu64 "}", (uint64_t) args.flags);
1028 break;
1029 }
1030
1031 case BTRFS_IOC_QUOTA_RESCAN_STATUS: { /* R */
1032 struct btrfs_ioctl_quota_rescan_args args;
1033
1034 if (entering(tcp))
1035 return 0;
1036
1037 tprints(", ");
1038 if (umove_or_printaddr(tcp, arg, &args))
1039 break;
1040
1041 tprintf("{flags=%" PRIu64 ", progress=", (uint64_t) args.flags);
1042 btrfs_print_objectid(args.progress);
1043 tprints("}");
1044 break;
1045 }
1046
1047 case BTRFS_IOC_SET_RECEIVED_SUBVOL: { /* RW */
1048 struct_btrfs_ioctl_received_subvol_args args;
1049 char uuid[UUID_STRING_SIZE+1];
1050
1051 if (entering(tcp))
1052 tprints(", ");
1053 else if (syserror(tcp))
1054 break;
1055 else
1056 tprints(" => ");
1057
1058 if (umove_or_printaddr(tcp, arg, &args))
1059 break;
1060
1061 if (entering(tcp)) {
1062 btrfs_unparse_uuid((unsigned char *)args.uuid, uuid);
1063 tprintf("{uuid=%s, stransid=%" PRIu64
1064 ", stime=%" PRIu64 ".%u, flags=%" PRIu64
1065 "}", uuid, (uint64_t) args.stransid,
1066 (uint64_t) args.stime.sec, args.stime.nsec,
1067 (uint64_t) args.flags);
1068 return 0;
1069 }
1070 tprintf("{rtransid=%" PRIu64 ", rtime=%" PRIu64 ".%u}",
1071 (uint64_t) args.rtransid, (uint64_t) args.rtime.sec,
1072 args.rtime.nsec);
1073 break;
1074 }
1075
1076 case BTRFS_IOC_SCRUB: /* RW */
1077 case BTRFS_IOC_SCRUB_PROGRESS: { /* RW */
1078 struct btrfs_ioctl_scrub_args args;
1079
1080 if (entering(tcp))
1081 tprints(", ");
1082 else if (syserror(tcp))
1083 break;
1084 else
1085 tprints(" => ");
1086
1087 if (umove_or_printaddr(tcp, arg, &args))
1088 break;
1089
1090 if (entering(tcp)) {
1091 tprintf("{devid=%" PRI__u64, args.devid);
1092 if (code == BTRFS_IOC_SCRUB) {
1093 tprintf(", start=%" PRI__u64 ", end=",
1094 args.start);
1095 tprintf("%" PRI__u64, args.end);
1096 if (args.end == UINT64_MAX)
1097 tprints_comment("UINT64_MAX");
1098 tprints(", flags=");
1099 printflags64(btrfs_scrub_flags, args.flags,
1100 "BTRFS_SCRUB_???");
1101 }
1102 tprints("}");
1103 return 0;
1104 }
1105 tprintf("{data_extents_scrubbed=%" PRI__u64
1106 ", tree_extents_scrubbed=%" PRI__u64
1107 ", data_bytes_scrubbed=%" PRI__u64
1108 ", tree_bytes_scrubbed=%" PRI__u64
1109 ", read_errors=%" PRI__u64
1110 ", csum_errors=%" PRI__u64
1111 ", verify_errors=%" PRI__u64
1112 ", no_csum=%" PRI__u64
1113 ", csum_discards=%" PRI__u64
1114 ", super_errors=%" PRI__u64
1115 ", malloc_errors=%" PRI__u64
1116 ", uncorrectable_errors=%" PRI__u64
1117 ", corrected_errors=%" PRI__u64
1118 ", last_physical=%" PRI__u64
1119 ", unverified_errors=%" PRI__u64 "}",
1120 args.progress.data_extents_scrubbed,
1121 args.progress.tree_extents_scrubbed,
1122 args.progress.data_bytes_scrubbed,
1123 args.progress.tree_bytes_scrubbed,
1124 args.progress.read_errors,
1125 args.progress.csum_errors,
1126 args.progress.verify_errors,
1127 args.progress.no_csum,
1128 args.progress.csum_discards,
1129 args.progress.super_errors,
1130 args.progress.malloc_errors,
1131 args.progress.uncorrectable_errors,
1132 args.progress.corrected_errors,
1133 args.progress.last_physical,
1134 args.progress.unverified_errors);
1135 break;
1136 }
1137
1138 case BTRFS_IOC_TREE_SEARCH: { /* RW */
1139 struct btrfs_ioctl_search_args args;
1140 uint64_t buf_offset;
1141
1142 if (entering(tcp))
1143 tprints(", ");
1144 else if (syserror(tcp))
1145 break;
1146 else
1147 tprints(" => ");
1148
1149 if (umove_or_printaddr(tcp, arg, &args))
1150 break;
1151
1152 buf_offset = offsetof(struct btrfs_ioctl_search_args, buf);
1153 btrfs_print_tree_search(tcp, &args.key, arg + buf_offset,
1154 sizeof(args.buf), false);
1155 if (entering(tcp))
1156 return 0;
1157 break;
1158 }
1159
1160 case BTRFS_IOC_TREE_SEARCH_V2: { /* RW */
1161 struct btrfs_ioctl_search_args_v2 args;
1162 uint64_t buf_offset;
1163
1164 if (entering(tcp))
1165 tprints(", ");
1166 else if (syserror(tcp)) {
1167 if (tcp->u_error == EOVERFLOW) {
1168 tprints(" => ");
1169 tcp->u_error = 0;
1170 if (!umove_or_printaddr(tcp, arg, &args))
1171 tprintf("{buf_size=%" PRIu64 "}",
1172 (uint64_t)args.buf_size);
1173 tcp->u_error = EOVERFLOW;
1174 }
1175 break;
1176 } else
1177 tprints(" => ");
1178
1179 if (umove_or_printaddr(tcp, arg, &args))
1180 break;
1181
1182 buf_offset = offsetof(struct btrfs_ioctl_search_args_v2, buf);
1183 btrfs_print_tree_search(tcp, &args.key, arg + buf_offset,
1184 args.buf_size, true);
1185 if (entering(tcp))
1186 return 0;
1187 break;
1188 }
1189
1190 case BTRFS_IOC_SEND: { /* W */
1191 struct_btrfs_ioctl_send_args args;
1192
1193 tprints(", ");
1194 if (umove_or_printaddr(tcp, arg, &args))
1195 break;
1196
1197 tprints("{send_fd=");
1198 printfd(tcp, args.send_fd);
1199 tprintf(", clone_sources_count=%" PRIu64 ", clone_sources=",
1200 (uint64_t) args.clone_sources_count);
1201
1202 if (abbrev(tcp))
1203 tprints("...");
1204 else {
1205 uint64_t record;
1206 print_array(tcp, ptr_to_kulong(args.clone_sources),
1207 args.clone_sources_count,
1208 &record, sizeof(record),
1209 umoven_or_printaddr,
1210 print_objectid_callback, 0);
1211 }
1212 tprints(", parent_root=");
1213 btrfs_print_objectid(args.parent_root);
1214 tprints(", flags=");
1215 printflags64(btrfs_send_flags, args.flags,
1216 "BTRFS_SEND_FLAGS_???");
1217 tprints("}");
1218 break;
1219 }
1220
1221 case BTRFS_IOC_SPACE_INFO: { /* RW */
1222 struct btrfs_ioctl_space_args args;
1223
1224 if (entering(tcp))
1225 tprints(", ");
1226 else if (syserror(tcp))
1227 break;
1228 else
1229 tprints(" => ");
1230
1231 if (umove_or_printaddr(tcp, arg, &args))
1232 break;
1233
1234 tprints("{");
1235 if (entering(tcp)) {
1236 tprintf("space_slots=%" PRI__u64 "}", args.space_slots);
1237 return 0;
1238 }
1239
1240 tprintf("total_spaces=%" PRI__u64, args.total_spaces);
1241
1242 if (args.space_slots == 0 && args.total_spaces) {
1243 tprints("}");
1244 break;
1245 }
1246
1247 tprints(", spaces=");
1248
1249 if (abbrev(tcp))
1250 tprints("...");
1251 else {
1252 struct btrfs_ioctl_space_info info;
1253 print_array(tcp, arg + offsetof(typeof(args), spaces),
1254 args.total_spaces,
1255 &info, sizeof(info), umoven_or_printaddr,
1256 print_btrfs_ioctl_space_info, 0);
1257 }
1258 tprints("}");
1259 break;
1260 }
1261
1262 case BTRFS_IOC_SNAP_CREATE:
1263 case BTRFS_IOC_RESIZE:
1264 case BTRFS_IOC_SCAN_DEV:
1265 case BTRFS_IOC_ADD_DEV:
1266 case BTRFS_IOC_RM_DEV:
1267 case BTRFS_IOC_SUBVOL_CREATE:
1268 case BTRFS_IOC_SNAP_DESTROY:
1269 case BTRFS_IOC_DEVICES_READY: { /* W */
1270 struct btrfs_ioctl_vol_args args;
1271
1272 tprints(", ");
1273 if (umove_or_printaddr(tcp, arg, &args))
1274 break;
1275
1276 tprints("{fd=");
1277 printfd(tcp, args.fd);
1278 PRINT_FIELD_CSTRING(", ", args, name);
1279 tprints("}");
1280 break;
1281 }
1282
1283 case BTRFS_IOC_SNAP_CREATE_V2:
1284 case BTRFS_IOC_SUBVOL_CREATE_V2: { /* code is W, but is actually RW */
1285 struct_btrfs_ioctl_vol_args_v2 args;
1286
1287 if (entering(tcp))
1288 tprints(", ");
1289 else if (syserror(tcp))
1290 break;
1291 else
1292 tprints(" => ");
1293
1294 if (umove_or_printaddr(tcp, arg, &args))
1295 break;
1296
1297 if (entering(tcp)) {
1298 tprints("{fd=");
1299 printfd(tcp, args.fd);
1300 tprints(", flags=");
1301 printflags64(btrfs_snap_flags_v2, args.flags,
1302 "BTRFS_SUBVOL_???");
1303 if (args.flags & BTRFS_SUBVOL_QGROUP_INHERIT) {
1304 tprintf(", size=%" PRIu64 ", qgroup_inherit=",
1305 (uint64_t) args.size);
1306
1307 btrfs_print_qgroup_inherit(tcp,
1308 ptr_to_kulong(args.qgroup_inherit));
1309 }
1310 PRINT_FIELD_CSTRING(", ", args, name);
1311 tprints("}");
1312 return 0;
1313 }
1314 tprintf("{transid=%" PRIu64 "}", (uint64_t) args.transid);
1315 break;
1316 }
1317
1318 case BTRFS_IOC_GET_FSLABEL: /* R */
1319 if (entering(tcp))
1320 return 0;
1321 /* fall through */
1322 case BTRFS_IOC_SET_FSLABEL: { /* W */
1323 char label[BTRFS_LABEL_SIZE];
1324
1325 tprints(", ");
1326 if (umove_or_printaddr(tcp, arg, &label))
1327 break;
1328 print_quoted_cstring(label, sizeof(label));
1329 break;
1330 }
1331
1332 case BTRFS_IOC_CLONE: /* FICLONE */
1333 case BTRFS_IOC_CLONE_RANGE: /* FICLONERANGE */
1334 #ifdef BTRFS_IOC_FILE_EXTENT_SAME
1335 case BTRFS_IOC_FILE_EXTENT_SAME: /* FIDEDUPERANGE */
1336 #endif
1337 /*
1338 * FICLONE, FICLONERANGE, and FIDEDUPERANGE started out as
1339 * btrfs ioctls and the code was kept for the generic
1340 * implementations. We use the BTRFS_* names here because
1341 * they will be available on older systems.
1342 */
1343 return file_ioctl(tcp, code, arg);
1344
1345 default:
1346 return RVAL_DECODED;
1347 };
1348 return RVAL_IOCTL_DECODED;
1349 }
1350 #endif /* HAVE_LINUX_BTRFS_H */
1351