1 /*
2  * CDDL HEADER START
3  *
4  * This file and its contents are supplied under the terms of the
5  * Common Development and Distribution License ("CDDL"), version 1.0.
6  * You may only use this file in accordance with the terms of version
7  * 1.0 of the CDDL.
8  *
9  * A full copy of the text of the CDDL should have accompanied this
10  * source.  A copy of the CDDL is also available via the Internet at
11  * http://www.illumos.org/license/CDDL.
12  *
13  * CDDL HEADER END
14  */
15 
16 /*
17  * Copyright (c) 2018 by Delphix. All rights reserved.
18  */
19 
20 #include <stdio.h>
21 #include <stdlib.h>
22 #include <string.h>
23 #include <libzfs_core.h>
24 #include <libzutil.h>
25 
26 #include <sys/nvpair.h>
27 #include <sys/vdev_impl.h>
28 #include <sys/zfs_ioctl.h>
29 #include <sys/zfs_bootenv.h>
30 #include <sys/fs/zfs.h>
31 
32 /*
33  * Test the nvpair inputs for the non-legacy zfs ioctl commands.
34  */
35 
36 static boolean_t unexpected_failures;
37 static int zfs_fd;
38 static const char *active_test;
39 
40 /*
41  * Tracks which zfs_ioc_t commands were tested
42  */
43 static boolean_t ioc_tested[ZFS_IOC_LAST - ZFS_IOC_FIRST];
44 
45 /*
46  * Legacy ioctls that are skipped (for now)
47  */
48 static const zfs_ioc_t ioc_skip[] = {
49 	ZFS_IOC_POOL_CREATE,
50 	ZFS_IOC_POOL_DESTROY,
51 	ZFS_IOC_POOL_IMPORT,
52 	ZFS_IOC_POOL_EXPORT,
53 	ZFS_IOC_POOL_CONFIGS,
54 	ZFS_IOC_POOL_STATS,
55 	ZFS_IOC_POOL_TRYIMPORT,
56 	ZFS_IOC_POOL_SCAN,
57 	ZFS_IOC_POOL_FREEZE,
58 	ZFS_IOC_POOL_UPGRADE,
59 	ZFS_IOC_POOL_GET_HISTORY,
60 
61 	ZFS_IOC_VDEV_ADD,
62 	ZFS_IOC_VDEV_REMOVE,
63 	ZFS_IOC_VDEV_SET_STATE,
64 	ZFS_IOC_VDEV_ATTACH,
65 	ZFS_IOC_VDEV_DETACH,
66 	ZFS_IOC_VDEV_SETPATH,
67 	ZFS_IOC_VDEV_SETFRU,
68 
69 	ZFS_IOC_OBJSET_STATS,
70 	ZFS_IOC_OBJSET_ZPLPROPS,
71 	ZFS_IOC_DATASET_LIST_NEXT,
72 	ZFS_IOC_SNAPSHOT_LIST_NEXT,
73 	ZFS_IOC_SET_PROP,
74 	ZFS_IOC_DESTROY,
75 	ZFS_IOC_RENAME,
76 	ZFS_IOC_RECV,
77 	ZFS_IOC_SEND,
78 	ZFS_IOC_INJECT_FAULT,
79 	ZFS_IOC_CLEAR_FAULT,
80 	ZFS_IOC_INJECT_LIST_NEXT,
81 	ZFS_IOC_ERROR_LOG,
82 	ZFS_IOC_CLEAR,
83 	ZFS_IOC_PROMOTE,
84 	ZFS_IOC_DSOBJ_TO_DSNAME,
85 	ZFS_IOC_OBJ_TO_PATH,
86 	ZFS_IOC_POOL_SET_PROPS,
87 	ZFS_IOC_POOL_GET_PROPS,
88 	ZFS_IOC_SET_FSACL,
89 	ZFS_IOC_GET_FSACL,
90 	ZFS_IOC_SHARE,
91 	ZFS_IOC_INHERIT_PROP,
92 	ZFS_IOC_SMB_ACL,
93 	ZFS_IOC_USERSPACE_ONE,
94 	ZFS_IOC_USERSPACE_MANY,
95 	ZFS_IOC_USERSPACE_UPGRADE,
96 	ZFS_IOC_OBJSET_RECVD_PROPS,
97 	ZFS_IOC_VDEV_SPLIT,
98 	ZFS_IOC_NEXT_OBJ,
99 	ZFS_IOC_DIFF,
100 	ZFS_IOC_TMP_SNAPSHOT,
101 	ZFS_IOC_OBJ_TO_STATS,
102 	ZFS_IOC_SPACE_WRITTEN,
103 	ZFS_IOC_POOL_REGUID,
104 	ZFS_IOC_SEND_PROGRESS,
105 	ZFS_IOC_EVENTS_NEXT,
106 	ZFS_IOC_EVENTS_CLEAR,
107 	ZFS_IOC_EVENTS_SEEK,
108 	ZFS_IOC_NEXTBOOT,
109 	ZFS_IOC_JAIL,
110 	ZFS_IOC_UNJAIL,
111 };
112 
113 
114 #define	IOC_INPUT_TEST(ioc, name, req, opt, err)		\
115 	IOC_INPUT_TEST_IMPL(ioc, name, req, opt, err, B_FALSE)
116 
117 #define	IOC_INPUT_TEST_WILD(ioc, name, req, opt, err)		\
118 	IOC_INPUT_TEST_IMPL(ioc, name, req, opt, err, B_TRUE)
119 
120 #define	IOC_INPUT_TEST_IMPL(ioc, name, req, opt, err, wild)	\
121 	do {							\
122 		active_test = __func__ + 5;			\
123 		ioc_tested[ioc - ZFS_IOC_FIRST] = B_TRUE;	\
124 		lzc_ioctl_test(ioc, name, req, opt, err, wild);	\
125 	} while (0)
126 
127 /*
128  * run a zfs ioctl command, verify expected results and log failures
129  */
130 static void
131 lzc_ioctl_run(zfs_ioc_t ioc, const char *name, nvlist_t *innvl, int expected)
132 {
133 	zfs_cmd_t zc = {"\0"};
134 	char *packed = NULL;
135 	const char *variant;
136 	size_t size = 0;
137 	int error = 0;
138 
139 	switch (expected) {
140 	case ZFS_ERR_IOC_ARG_UNAVAIL:
141 		variant = "unsupported input";
142 		break;
143 	case ZFS_ERR_IOC_ARG_REQUIRED:
144 		variant = "missing input";
145 		break;
146 	case ZFS_ERR_IOC_ARG_BADTYPE:
147 		variant = "invalid input type";
148 		break;
149 	default:
150 		variant = "valid input";
151 		break;
152 	}
153 
154 	packed = fnvlist_pack(innvl, &size);
155 	(void) strlcpy(zc.zc_name, name, sizeof (zc.zc_name));
156 	zc.zc_name[sizeof (zc.zc_name) - 1] = '\0';
157 	zc.zc_nvlist_src = (uint64_t)(uintptr_t)packed;
158 	zc.zc_nvlist_src_size = size;
159 	zc.zc_nvlist_dst_size = MAX(size * 2, 128 * 1024);
160 	zc.zc_nvlist_dst = (uint64_t)(uintptr_t)malloc(zc.zc_nvlist_dst_size);
161 
162 	if (lzc_ioctl_fd(zfs_fd, ioc, &zc) != 0)
163 		error = errno;
164 
165 	if (error != expected) {
166 		unexpected_failures = B_TRUE;
167 		(void) fprintf(stderr, "%s: Unexpected result with %s, "
168 		    "error %d (expecting %d)\n",
169 		    active_test, variant, error, expected);
170 	}
171 
172 	fnvlist_pack_free(packed, size);
173 	free((void *)(uintptr_t)zc.zc_nvlist_dst);
174 }
175 
176 /*
177  * Test each ioc for the following ioctl input errors:
178  *   ZFS_ERR_IOC_ARG_UNAVAIL	an input argument is not supported by kernel
179  *   ZFS_ERR_IOC_ARG_REQUIRED	a required input argument is missing
180  *   ZFS_ERR_IOC_ARG_BADTYPE	an input argument has an invalid type
181  */
182 static int
183 lzc_ioctl_test(zfs_ioc_t ioc, const char *name, nvlist_t *required,
184     nvlist_t *optional, int expected_error, boolean_t wildcard)
185 {
186 	nvlist_t *input = fnvlist_alloc();
187 	nvlist_t *future = fnvlist_alloc();
188 	int error = 0;
189 
190 	if (required != NULL) {
191 		for (nvpair_t *pair = nvlist_next_nvpair(required, NULL);
192 		    pair != NULL; pair = nvlist_next_nvpair(required, pair)) {
193 			fnvlist_add_nvpair(input, pair);
194 		}
195 	}
196 	if (optional != NULL) {
197 		for (nvpair_t *pair = nvlist_next_nvpair(optional, NULL);
198 		    pair != NULL; pair = nvlist_next_nvpair(optional, pair)) {
199 			fnvlist_add_nvpair(input, pair);
200 		}
201 	}
202 
203 	/*
204 	 * Generic input run with 'optional' nvlist pair
205 	 */
206 	if (!wildcard)
207 		fnvlist_add_nvlist(input, "optional", future);
208 	lzc_ioctl_run(ioc, name, input, expected_error);
209 	if (!wildcard)
210 		fnvlist_remove(input, "optional");
211 
212 	/*
213 	 * Bogus input value
214 	 */
215 	if (!wildcard) {
216 		fnvlist_add_string(input, "bogus_input", "bogus");
217 		lzc_ioctl_run(ioc, name, input, ZFS_ERR_IOC_ARG_UNAVAIL);
218 		fnvlist_remove(input, "bogus_input");
219 	}
220 
221 	/*
222 	 * Missing required inputs
223 	 */
224 	if (required != NULL) {
225 		nvlist_t *empty = fnvlist_alloc();
226 		lzc_ioctl_run(ioc, name, empty, ZFS_ERR_IOC_ARG_REQUIRED);
227 		nvlist_free(empty);
228 	}
229 
230 	/*
231 	 * Wrong nvpair type
232 	 */
233 	if (required != NULL || optional != NULL) {
234 		/*
235 		 * switch the type of one of the input pairs
236 		 */
237 		for (nvpair_t *pair = nvlist_next_nvpair(input, NULL);
238 		    pair != NULL; pair = nvlist_next_nvpair(input, pair)) {
239 			char pname[MAXNAMELEN];
240 			data_type_t ptype;
241 
242 			strlcpy(pname, nvpair_name(pair), sizeof (pname));
243 			pname[sizeof (pname) - 1] = '\0';
244 			ptype = nvpair_type(pair);
245 			fnvlist_remove_nvpair(input, pair);
246 
247 			switch (ptype) {
248 			case DATA_TYPE_STRING:
249 				fnvlist_add_uint64(input, pname, 42);
250 				break;
251 			default:
252 				fnvlist_add_string(input, pname, "bogus");
253 				break;
254 			}
255 		}
256 		lzc_ioctl_run(ioc, name, input, ZFS_ERR_IOC_ARG_BADTYPE);
257 	}
258 
259 	nvlist_free(future);
260 	nvlist_free(input);
261 
262 	return (error);
263 }
264 
265 static void
266 test_pool_sync(const char *pool)
267 {
268 	nvlist_t *required = fnvlist_alloc();
269 
270 	fnvlist_add_boolean_value(required, "force", B_TRUE);
271 
272 	IOC_INPUT_TEST(ZFS_IOC_POOL_SYNC, pool, required, NULL, 0);
273 
274 	nvlist_free(required);
275 }
276 
277 static void
278 test_pool_reopen(const char *pool)
279 {
280 	nvlist_t *optional = fnvlist_alloc();
281 
282 	fnvlist_add_boolean_value(optional, "scrub_restart", B_FALSE);
283 
284 	IOC_INPUT_TEST(ZFS_IOC_POOL_REOPEN, pool, NULL, optional, 0);
285 
286 	nvlist_free(optional);
287 }
288 
289 static void
290 test_pool_checkpoint(const char *pool)
291 {
292 	IOC_INPUT_TEST(ZFS_IOC_POOL_CHECKPOINT, pool, NULL, NULL, 0);
293 }
294 
295 static void
296 test_pool_discard_checkpoint(const char *pool)
297 {
298 	int err = lzc_pool_checkpoint(pool);
299 	if (err == 0 || err == ZFS_ERR_CHECKPOINT_EXISTS)
300 		IOC_INPUT_TEST(ZFS_IOC_POOL_DISCARD_CHECKPOINT, pool, NULL,
301 		    NULL, 0);
302 }
303 
304 static void
305 test_log_history(const char *pool)
306 {
307 	nvlist_t *required = fnvlist_alloc();
308 
309 	fnvlist_add_string(required, "message", "input check");
310 
311 	IOC_INPUT_TEST(ZFS_IOC_LOG_HISTORY, pool, required, NULL, 0);
312 
313 	nvlist_free(required);
314 }
315 
316 static void
317 test_create(const char *pool)
318 {
319 	char dataset[MAXNAMELEN + 32];
320 
321 	(void) snprintf(dataset, sizeof (dataset), "%s/create-fs", pool);
322 
323 	nvlist_t *required = fnvlist_alloc();
324 	nvlist_t *optional = fnvlist_alloc();
325 	nvlist_t *props = fnvlist_alloc();
326 
327 	fnvlist_add_int32(required, "type", DMU_OST_ZFS);
328 	fnvlist_add_uint64(props, "recordsize", 8192);
329 	fnvlist_add_nvlist(optional, "props", props);
330 
331 	IOC_INPUT_TEST(ZFS_IOC_CREATE, dataset, required, optional, 0);
332 
333 	nvlist_free(required);
334 	nvlist_free(optional);
335 }
336 
337 static void
338 test_snapshot(const char *pool, const char *snapshot)
339 {
340 	nvlist_t *required = fnvlist_alloc();
341 	nvlist_t *optional = fnvlist_alloc();
342 	nvlist_t *snaps = fnvlist_alloc();
343 	nvlist_t *props = fnvlist_alloc();
344 
345 	fnvlist_add_boolean(snaps, snapshot);
346 	fnvlist_add_nvlist(required, "snaps", snaps);
347 
348 	fnvlist_add_string(props, "org.openzfs:launch", "September 17th, 2013");
349 	fnvlist_add_nvlist(optional, "props", props);
350 
351 	IOC_INPUT_TEST(ZFS_IOC_SNAPSHOT, pool, required, optional, 0);
352 
353 	nvlist_free(props);
354 	nvlist_free(snaps);
355 	nvlist_free(optional);
356 	nvlist_free(required);
357 }
358 
359 static void
360 test_space_snaps(const char *snapshot)
361 {
362 	nvlist_t *required = fnvlist_alloc();
363 	fnvlist_add_string(required, "firstsnap", snapshot);
364 
365 	IOC_INPUT_TEST(ZFS_IOC_SPACE_SNAPS, snapshot, required, NULL, 0);
366 
367 	nvlist_free(required);
368 }
369 
370 static void
371 test_destroy_snaps(const char *pool, const char *snapshot)
372 {
373 	nvlist_t *required = fnvlist_alloc();
374 	nvlist_t *snaps = fnvlist_alloc();
375 
376 	fnvlist_add_boolean(snaps, snapshot);
377 	fnvlist_add_nvlist(required, "snaps", snaps);
378 
379 	IOC_INPUT_TEST(ZFS_IOC_DESTROY_SNAPS, pool, required, NULL, 0);
380 
381 	nvlist_free(snaps);
382 	nvlist_free(required);
383 }
384 
385 
386 static void
387 test_bookmark(const char *pool, const char *snapshot, const char *bookmark)
388 {
389 	nvlist_t *required = fnvlist_alloc();
390 
391 	fnvlist_add_string(required, bookmark, snapshot);
392 
393 	IOC_INPUT_TEST_WILD(ZFS_IOC_BOOKMARK, pool, required, NULL, 0);
394 
395 	nvlist_free(required);
396 }
397 
398 static void
399 test_get_bookmarks(const char *dataset)
400 {
401 	nvlist_t *optional = fnvlist_alloc();
402 
403 	fnvlist_add_boolean(optional, "guid");
404 	fnvlist_add_boolean(optional, "createtxg");
405 	fnvlist_add_boolean(optional, "creation");
406 
407 	IOC_INPUT_TEST_WILD(ZFS_IOC_GET_BOOKMARKS, dataset, NULL, optional, 0);
408 
409 	nvlist_free(optional);
410 }
411 
412 static void
413 test_destroy_bookmarks(const char *pool, const char *bookmark)
414 {
415 	nvlist_t *required = fnvlist_alloc();
416 
417 	fnvlist_add_boolean(required, bookmark);
418 
419 	IOC_INPUT_TEST_WILD(ZFS_IOC_DESTROY_BOOKMARKS, pool, required, NULL, 0);
420 
421 	nvlist_free(required);
422 }
423 
424 static void
425 test_clone(const char *snapshot, const char *clone)
426 {
427 	nvlist_t *required = fnvlist_alloc();
428 	nvlist_t *optional = fnvlist_alloc();
429 	nvlist_t *props = fnvlist_alloc();
430 
431 	fnvlist_add_string(required, "origin", snapshot);
432 
433 	IOC_INPUT_TEST(ZFS_IOC_CLONE, clone, required, NULL, 0);
434 
435 	nvlist_free(props);
436 	nvlist_free(optional);
437 	nvlist_free(required);
438 }
439 
440 static void
441 test_rollback(const char *dataset, const char *snapshot)
442 {
443 	nvlist_t *optional = fnvlist_alloc();
444 
445 	fnvlist_add_string(optional, "target", snapshot);
446 
447 	IOC_INPUT_TEST(ZFS_IOC_ROLLBACK, dataset, NULL, optional, B_FALSE);
448 
449 	nvlist_free(optional);
450 }
451 
452 static void
453 test_hold(const char *pool, const char *snapshot)
454 {
455 	nvlist_t *required = fnvlist_alloc();
456 	nvlist_t *optional = fnvlist_alloc();
457 	nvlist_t *holds = fnvlist_alloc();
458 
459 	fnvlist_add_string(holds, snapshot, "libzfs_check_hold");
460 	fnvlist_add_nvlist(required, "holds", holds);
461 	fnvlist_add_int32(optional, "cleanup_fd", zfs_fd);
462 
463 	IOC_INPUT_TEST(ZFS_IOC_HOLD, pool, required, optional, 0);
464 
465 	nvlist_free(holds);
466 	nvlist_free(optional);
467 	nvlist_free(required);
468 }
469 
470 static void
471 test_get_holds(const char *snapshot)
472 {
473 	IOC_INPUT_TEST(ZFS_IOC_GET_HOLDS, snapshot, NULL, NULL, 0);
474 }
475 
476 static void
477 test_release(const char *pool, const char *snapshot)
478 {
479 	nvlist_t *required = fnvlist_alloc();
480 	nvlist_t *release = fnvlist_alloc();
481 
482 	fnvlist_add_boolean(release, "libzfs_check_hold");
483 	fnvlist_add_nvlist(required, snapshot, release);
484 
485 	IOC_INPUT_TEST_WILD(ZFS_IOC_RELEASE, pool, required, NULL, 0);
486 
487 	nvlist_free(release);
488 	nvlist_free(required);
489 }
490 
491 
492 static void
493 test_send_new(const char *snapshot, int fd)
494 {
495 	nvlist_t *required = fnvlist_alloc();
496 	nvlist_t *optional = fnvlist_alloc();
497 
498 	fnvlist_add_int32(required, "fd", fd);
499 
500 	fnvlist_add_boolean(optional, "largeblockok");
501 	fnvlist_add_boolean(optional, "embedok");
502 	fnvlist_add_boolean(optional, "compressok");
503 	fnvlist_add_boolean(optional, "rawok");
504 
505 	/*
506 	 * TODO - Resumable send is harder to set up. So we currently
507 	 * ignore testing for that variant.
508 	 */
509 #if 0
510 	fnvlist_add_string(optional, "fromsnap", from);
511 	fnvlist_add_uint64(optional, "resume_object", resumeobj);
512 	fnvlist_add_uint64(optional, "resume_offset", offset);
513 	fnvlist_add_boolean(optional, "savedok");
514 #endif
515 	IOC_INPUT_TEST(ZFS_IOC_SEND_NEW, snapshot, required, optional, 0);
516 
517 	nvlist_free(optional);
518 	nvlist_free(required);
519 }
520 
521 static void
522 test_recv_new(const char *dataset, int fd)
523 {
524 	dmu_replay_record_t drr = { 0 };
525 	nvlist_t *required = fnvlist_alloc();
526 	nvlist_t *optional = fnvlist_alloc();
527 	nvlist_t *props = fnvlist_alloc();
528 	char snapshot[MAXNAMELEN + 32];
529 	ssize_t count;
530 
531 	int cleanup_fd = open(ZFS_DEV, O_RDWR);
532 	if (cleanup_fd == -1) {
533 		(void) fprintf(stderr, "open(%s) failed: %s\n", ZFS_DEV,
534 		    strerror(errno));
535 		exit(EXIT_FAILURE);
536 	}
537 	(void) snprintf(snapshot, sizeof (snapshot), "%s@replicant", dataset);
538 
539 	count = pread(fd, &drr, sizeof (drr), 0);
540 	if (count != sizeof (drr)) {
541 		(void) fprintf(stderr, "could not read stream: %s\n",
542 		    strerror(errno));
543 	}
544 
545 	fnvlist_add_string(required, "snapname", snapshot);
546 	fnvlist_add_byte_array(required, "begin_record", (uchar_t *)&drr,
547 	    sizeof (drr));
548 	fnvlist_add_int32(required, "input_fd", fd);
549 
550 	fnvlist_add_string(props, "org.openzfs:launch", "September 17th, 2013");
551 	fnvlist_add_nvlist(optional, "localprops", props);
552 	fnvlist_add_boolean(optional, "force");
553 	fnvlist_add_boolean(optional, "heal");
554 	fnvlist_add_int32(optional, "cleanup_fd", cleanup_fd);
555 
556 	/*
557 	 * TODO - Resumable receive is harder to set up. So we currently
558 	 * ignore testing for one.
559 	 */
560 #if 0
561 	fnvlist_add_nvlist(optional, "props", recvdprops);
562 	fnvlist_add_string(optional, "origin", origin);
563 	fnvlist_add_boolean(optional, "resumable");
564 	fnvlist_add_uint64(optional, "action_handle", *action_handle);
565 #endif
566 	IOC_INPUT_TEST(ZFS_IOC_RECV_NEW, dataset, required, optional,
567 	    ENOTSUP);
568 
569 	nvlist_free(props);
570 	nvlist_free(optional);
571 	nvlist_free(required);
572 
573 	(void) close(cleanup_fd);
574 }
575 
576 static void
577 test_send_space(const char *snapshot1, const char *snapshot2)
578 {
579 	nvlist_t *optional = fnvlist_alloc();
580 
581 	fnvlist_add_string(optional, "from", snapshot1);
582 	fnvlist_add_boolean(optional, "largeblockok");
583 	fnvlist_add_boolean(optional, "embedok");
584 	fnvlist_add_boolean(optional, "compressok");
585 	fnvlist_add_boolean(optional, "rawok");
586 
587 	IOC_INPUT_TEST(ZFS_IOC_SEND_SPACE, snapshot2, NULL, optional, 0);
588 
589 	nvlist_free(optional);
590 }
591 
592 static void
593 test_remap(const char *dataset)
594 {
595 	IOC_INPUT_TEST(ZFS_IOC_REMAP, dataset, NULL, NULL, 0);
596 }
597 
598 static void
599 test_channel_program(const char *pool)
600 {
601 	const char *program =
602 	    "arg = ...\n"
603 	    "argv = arg[\"argv\"]\n"
604 	    "return argv[1]";
605 	const char *const argv[1] = { "Hello World!" };
606 	nvlist_t *required = fnvlist_alloc();
607 	nvlist_t *optional = fnvlist_alloc();
608 	nvlist_t *args = fnvlist_alloc();
609 
610 	fnvlist_add_string(required, "program", program);
611 	fnvlist_add_string_array(args, "argv", argv, 1);
612 	fnvlist_add_nvlist(required, "arg", args);
613 
614 	fnvlist_add_boolean_value(optional, "sync", B_TRUE);
615 	fnvlist_add_uint64(optional, "instrlimit", 1000 * 1000);
616 	fnvlist_add_uint64(optional, "memlimit", 8192 * 1024);
617 
618 	IOC_INPUT_TEST(ZFS_IOC_CHANNEL_PROGRAM, pool, required, optional, 0);
619 
620 	nvlist_free(args);
621 	nvlist_free(optional);
622 	nvlist_free(required);
623 }
624 
625 #define	WRAPPING_KEY_LEN	32
626 
627 static void
628 test_load_key(const char *dataset)
629 {
630 	nvlist_t *required = fnvlist_alloc();
631 	nvlist_t *optional = fnvlist_alloc();
632 	nvlist_t *hidden = fnvlist_alloc();
633 	uint8_t keydata[WRAPPING_KEY_LEN] = {0};
634 
635 	fnvlist_add_uint8_array(hidden, "wkeydata", keydata, sizeof (keydata));
636 	fnvlist_add_nvlist(required, "hidden_args", hidden);
637 	fnvlist_add_boolean(optional, "noop");
638 
639 	IOC_INPUT_TEST(ZFS_IOC_LOAD_KEY, dataset, required, optional, EINVAL);
640 	nvlist_free(hidden);
641 	nvlist_free(optional);
642 	nvlist_free(required);
643 }
644 
645 static void
646 test_change_key(const char *dataset)
647 {
648 	IOC_INPUT_TEST(ZFS_IOC_CHANGE_KEY, dataset, NULL, NULL, EINVAL);
649 }
650 
651 static void
652 test_unload_key(const char *dataset)
653 {
654 	IOC_INPUT_TEST(ZFS_IOC_UNLOAD_KEY, dataset, NULL, NULL, EACCES);
655 }
656 
657 static void
658 test_vdev_initialize(const char *pool)
659 {
660 	nvlist_t *required = fnvlist_alloc();
661 	nvlist_t *vdev_guids = fnvlist_alloc();
662 
663 	fnvlist_add_uint64(vdev_guids, "path", 0xdeadbeefdeadbeef);
664 	fnvlist_add_uint64(required, ZPOOL_INITIALIZE_COMMAND,
665 	    POOL_INITIALIZE_START);
666 	fnvlist_add_nvlist(required, ZPOOL_INITIALIZE_VDEVS, vdev_guids);
667 
668 	IOC_INPUT_TEST(ZFS_IOC_POOL_INITIALIZE, pool, required, NULL, EINVAL);
669 	nvlist_free(vdev_guids);
670 	nvlist_free(required);
671 }
672 
673 static void
674 test_vdev_trim(const char *pool)
675 {
676 	nvlist_t *required = fnvlist_alloc();
677 	nvlist_t *optional = fnvlist_alloc();
678 	nvlist_t *vdev_guids = fnvlist_alloc();
679 
680 	fnvlist_add_uint64(vdev_guids, "path", 0xdeadbeefdeadbeef);
681 	fnvlist_add_uint64(required, ZPOOL_TRIM_COMMAND, POOL_TRIM_START);
682 	fnvlist_add_nvlist(required, ZPOOL_TRIM_VDEVS, vdev_guids);
683 	fnvlist_add_uint64(optional, ZPOOL_TRIM_RATE, 1ULL << 30);
684 	fnvlist_add_boolean_value(optional, ZPOOL_TRIM_SECURE, B_TRUE);
685 
686 	IOC_INPUT_TEST(ZFS_IOC_POOL_TRIM, pool, required, optional, EINVAL);
687 	nvlist_free(vdev_guids);
688 	nvlist_free(optional);
689 	nvlist_free(required);
690 }
691 
692 /* Test with invalid values */
693 static void
694 test_scrub(const char *pool)
695 {
696 	nvlist_t *required = fnvlist_alloc();
697 	fnvlist_add_uint64(required, "scan_type", POOL_SCAN_FUNCS + 1);
698 	fnvlist_add_uint64(required, "scan_command", POOL_SCRUB_FLAGS_END + 1);
699 	IOC_INPUT_TEST(ZFS_IOC_POOL_SCRUB, pool, required, NULL, EINVAL);
700 	nvlist_free(required);
701 }
702 
703 static int
704 zfs_destroy(const char *dataset)
705 {
706 	zfs_cmd_t zc = {"\0"};
707 	int err;
708 
709 	(void) strlcpy(zc.zc_name, dataset, sizeof (zc.zc_name));
710 	zc.zc_name[sizeof (zc.zc_name) - 1] = '\0';
711 	err = lzc_ioctl_fd(zfs_fd, ZFS_IOC_DESTROY, &zc);
712 
713 	return (err == 0 ? 0 : errno);
714 }
715 
716 static void
717 test_redact(const char *snapshot1, const char *snapshot2)
718 {
719 	nvlist_t *required = fnvlist_alloc();
720 	nvlist_t *snapnv = fnvlist_alloc();
721 	char bookmark[MAXNAMELEN + 32];
722 
723 	fnvlist_add_string(required, "bookname", "testbookmark");
724 	fnvlist_add_boolean(snapnv, snapshot2);
725 	fnvlist_add_nvlist(required, "snapnv", snapnv);
726 
727 	IOC_INPUT_TEST(ZFS_IOC_REDACT, snapshot1, required, NULL, 0);
728 
729 	nvlist_free(snapnv);
730 	nvlist_free(required);
731 
732 	strlcpy(bookmark, snapshot1, sizeof (bookmark));
733 	*strchr(bookmark, '@') = '\0';
734 	strlcat(bookmark, "#testbookmark", sizeof (bookmark) -
735 	    strlen(bookmark));
736 	zfs_destroy(bookmark);
737 }
738 
739 static void
740 test_get_bookmark_props(const char *bookmark)
741 {
742 	IOC_INPUT_TEST(ZFS_IOC_GET_BOOKMARK_PROPS, bookmark, NULL, NULL, 0);
743 }
744 
745 static void
746 test_wait(const char *pool)
747 {
748 	nvlist_t *required = fnvlist_alloc();
749 	nvlist_t *optional = fnvlist_alloc();
750 
751 	fnvlist_add_int32(required, "wait_activity", 2);
752 	fnvlist_add_uint64(optional, "wait_tag", 0xdeadbeefdeadbeef);
753 
754 	IOC_INPUT_TEST(ZFS_IOC_WAIT, pool, required, optional, EINVAL);
755 
756 	nvlist_free(required);
757 	nvlist_free(optional);
758 }
759 
760 static void
761 test_wait_fs(const char *dataset)
762 {
763 	nvlist_t *required = fnvlist_alloc();
764 
765 	fnvlist_add_int32(required, "wait_activity", 2);
766 
767 	IOC_INPUT_TEST(ZFS_IOC_WAIT_FS, dataset, required, NULL, EINVAL);
768 
769 	nvlist_free(required);
770 }
771 
772 static void
773 test_get_bootenv(const char *pool)
774 {
775 	IOC_INPUT_TEST(ZFS_IOC_GET_BOOTENV, pool, NULL, NULL, 0);
776 }
777 
778 static void
779 test_set_bootenv(const char *pool)
780 {
781 	nvlist_t *required = fnvlist_alloc();
782 
783 	fnvlist_add_uint64(required, "version", VB_RAW);
784 	fnvlist_add_string(required, GRUB_ENVMAP, "test");
785 
786 	IOC_INPUT_TEST_WILD(ZFS_IOC_SET_BOOTENV, pool, required, NULL, 0);
787 
788 	nvlist_free(required);
789 }
790 
791 static void
792 zfs_ioc_input_tests(const char *pool)
793 {
794 	char filepath[] = "/tmp/ioc_test_file_XXXXXX";
795 	char dataset[ZFS_MAX_DATASET_NAME_LEN];
796 	char snapbase[ZFS_MAX_DATASET_NAME_LEN + 32];
797 	char snapshot[ZFS_MAX_DATASET_NAME_LEN + 32];
798 	char bookmark[ZFS_MAX_DATASET_NAME_LEN + 32];
799 	char backup[ZFS_MAX_DATASET_NAME_LEN];
800 	char clone[ZFS_MAX_DATASET_NAME_LEN];
801 	char clonesnap[ZFS_MAX_DATASET_NAME_LEN + 32];
802 	int tmpfd, err;
803 
804 	/*
805 	 * Setup names and create a working dataset
806 	 */
807 	(void) snprintf(dataset, sizeof (dataset), "%s/test-fs", pool);
808 	(void) snprintf(snapbase, sizeof (snapbase), "%s@snapbase", dataset);
809 	(void) snprintf(snapshot, sizeof (snapshot), "%s@snapshot", dataset);
810 	(void) snprintf(bookmark, sizeof (bookmark), "%s#bookmark", dataset);
811 	(void) snprintf(clone, sizeof (clone), "%s/test-fs-clone", pool);
812 	(void) snprintf(clonesnap, sizeof (clonesnap), "%s@snap", clone);
813 	(void) snprintf(backup, sizeof (backup), "%s/backup", pool);
814 
815 	err = lzc_create(dataset, LZC_DATSET_TYPE_ZFS, NULL, NULL, -1);
816 	if (err) {
817 		(void) fprintf(stderr, "could not create '%s': %s\n",
818 		    dataset, strerror(errno));
819 		exit(2);
820 	}
821 
822 	tmpfd = mkstemp(filepath);
823 	if (tmpfd < 0) {
824 		(void) fprintf(stderr, "could not create '%s': %s\n",
825 		    filepath, strerror(errno));
826 		exit(2);
827 	}
828 
829 	/*
830 	 * run a test for each ioctl
831 	 * Note that some test build on previous test operations
832 	 */
833 	test_pool_sync(pool);
834 	test_pool_reopen(pool);
835 	test_pool_checkpoint(pool);
836 	test_pool_discard_checkpoint(pool);
837 	test_log_history(pool);
838 
839 	test_create(dataset);
840 	test_snapshot(pool, snapbase);
841 	test_snapshot(pool, snapshot);
842 
843 	test_space_snaps(snapshot);
844 	test_send_space(snapbase, snapshot);
845 	test_send_new(snapshot, tmpfd);
846 	test_recv_new(backup, tmpfd);
847 
848 	test_bookmark(pool, snapshot, bookmark);
849 	test_get_bookmarks(dataset);
850 	test_get_bookmark_props(bookmark);
851 	test_destroy_bookmarks(pool, bookmark);
852 
853 	test_hold(pool, snapshot);
854 	test_get_holds(snapshot);
855 	test_release(pool, snapshot);
856 
857 	test_clone(snapshot, clone);
858 	test_snapshot(pool, clonesnap);
859 	test_redact(snapshot, clonesnap);
860 	zfs_destroy(clonesnap);
861 	zfs_destroy(clone);
862 
863 	test_rollback(dataset, snapshot);
864 	test_destroy_snaps(pool, snapshot);
865 	test_destroy_snaps(pool, snapbase);
866 
867 	test_remap(dataset);
868 	test_channel_program(pool);
869 
870 	test_load_key(dataset);
871 	test_change_key(dataset);
872 	test_unload_key(dataset);
873 
874 	test_vdev_initialize(pool);
875 	test_vdev_trim(pool);
876 
877 	test_wait(pool);
878 	test_wait_fs(dataset);
879 
880 	test_set_bootenv(pool);
881 	test_get_bootenv(pool);
882 
883 	test_scrub(pool);
884 
885 	/*
886 	 * cleanup
887 	 */
888 	zfs_cmd_t zc = {"\0"};
889 
890 	nvlist_t *snaps = fnvlist_alloc();
891 	fnvlist_add_boolean(snaps, snapshot);
892 	(void) lzc_destroy_snaps(snaps, B_FALSE, NULL);
893 	nvlist_free(snaps);
894 
895 	(void) zfs_destroy(dataset);
896 	(void) zfs_destroy(backup);
897 
898 	(void) close(tmpfd);
899 	(void) unlink(filepath);
900 
901 	/*
902 	 * All the unused slots should yield ZFS_ERR_IOC_CMD_UNAVAIL
903 	 */
904 	for (int i = 0; i < ARRAY_SIZE(ioc_skip); i++) {
905 		if (ioc_tested[ioc_skip[i] - ZFS_IOC_FIRST])
906 			(void) fprintf(stderr, "cmd %d tested, not skipped!\n",
907 			    (int)(ioc_skip[i] - ZFS_IOC_FIRST));
908 
909 		ioc_tested[ioc_skip[i] - ZFS_IOC_FIRST] = B_TRUE;
910 	}
911 
912 	(void) strlcpy(zc.zc_name, pool, sizeof (zc.zc_name));
913 	zc.zc_name[sizeof (zc.zc_name) - 1] = '\0';
914 
915 	for (unsigned ioc = ZFS_IOC_FIRST; ioc < ZFS_IOC_LAST; ioc++) {
916 		unsigned cmd = ioc - ZFS_IOC_FIRST;
917 
918 		if (ioc_tested[cmd])
919 			continue;
920 
921 		if (lzc_ioctl_fd(zfs_fd, ioc, &zc) != 0 &&
922 		    errno != ZFS_ERR_IOC_CMD_UNAVAIL) {
923 			(void) fprintf(stderr, "cmd %d is missing a test case "
924 			    "(%d)\n", cmd, errno);
925 		}
926 	}
927 }
928 
929 enum zfs_ioc_ref {
930 #ifdef __FreeBSD__
931 	ZFS_IOC_BASE = 0,
932 #else
933 	ZFS_IOC_BASE = ('Z' << 8),
934 #endif
935 	ZFS_IOC_PLATFORM_BASE = ZFS_IOC_BASE + 0x80,
936 };
937 
938 /*
939  * Canonical reference check of /dev/zfs ioctl numbers.
940  * These cannot change and new ioctl numbers must be appended.
941  */
942 static boolean_t
943 validate_ioc_values(void)
944 {
945 	boolean_t result = B_TRUE;
946 
947 #define	CHECK(expr) do { \
948 	if (!(expr)) { \
949 		result = B_FALSE; \
950 		fprintf(stderr, "(%s) === FALSE\n", #expr); \
951 	} \
952 } while (0)
953 
954 	CHECK(ZFS_IOC_BASE + 0 == ZFS_IOC_POOL_CREATE);
955 	CHECK(ZFS_IOC_BASE + 1 == ZFS_IOC_POOL_DESTROY);
956 	CHECK(ZFS_IOC_BASE + 2 == ZFS_IOC_POOL_IMPORT);
957 	CHECK(ZFS_IOC_BASE + 3 == ZFS_IOC_POOL_EXPORT);
958 	CHECK(ZFS_IOC_BASE + 4 == ZFS_IOC_POOL_CONFIGS);
959 	CHECK(ZFS_IOC_BASE + 5 == ZFS_IOC_POOL_STATS);
960 	CHECK(ZFS_IOC_BASE + 6 == ZFS_IOC_POOL_TRYIMPORT);
961 	CHECK(ZFS_IOC_BASE + 7 == ZFS_IOC_POOL_SCAN);
962 	CHECK(ZFS_IOC_BASE + 8 == ZFS_IOC_POOL_FREEZE);
963 	CHECK(ZFS_IOC_BASE + 9 == ZFS_IOC_POOL_UPGRADE);
964 	CHECK(ZFS_IOC_BASE + 10 == ZFS_IOC_POOL_GET_HISTORY);
965 	CHECK(ZFS_IOC_BASE + 11 == ZFS_IOC_VDEV_ADD);
966 	CHECK(ZFS_IOC_BASE + 12 == ZFS_IOC_VDEV_REMOVE);
967 	CHECK(ZFS_IOC_BASE + 13 == ZFS_IOC_VDEV_SET_STATE);
968 	CHECK(ZFS_IOC_BASE + 14 == ZFS_IOC_VDEV_ATTACH);
969 	CHECK(ZFS_IOC_BASE + 15 == ZFS_IOC_VDEV_DETACH);
970 	CHECK(ZFS_IOC_BASE + 16 == ZFS_IOC_VDEV_SETPATH);
971 	CHECK(ZFS_IOC_BASE + 17 == ZFS_IOC_VDEV_SETFRU);
972 	CHECK(ZFS_IOC_BASE + 18 == ZFS_IOC_OBJSET_STATS);
973 	CHECK(ZFS_IOC_BASE + 19 == ZFS_IOC_OBJSET_ZPLPROPS);
974 	CHECK(ZFS_IOC_BASE + 20 == ZFS_IOC_DATASET_LIST_NEXT);
975 	CHECK(ZFS_IOC_BASE + 21 == ZFS_IOC_SNAPSHOT_LIST_NEXT);
976 	CHECK(ZFS_IOC_BASE + 22 == ZFS_IOC_SET_PROP);
977 	CHECK(ZFS_IOC_BASE + 23 == ZFS_IOC_CREATE);
978 	CHECK(ZFS_IOC_BASE + 24 == ZFS_IOC_DESTROY);
979 	CHECK(ZFS_IOC_BASE + 25 == ZFS_IOC_ROLLBACK);
980 	CHECK(ZFS_IOC_BASE + 26 == ZFS_IOC_RENAME);
981 	CHECK(ZFS_IOC_BASE + 27 == ZFS_IOC_RECV);
982 	CHECK(ZFS_IOC_BASE + 28 == ZFS_IOC_SEND);
983 	CHECK(ZFS_IOC_BASE + 29 == ZFS_IOC_INJECT_FAULT);
984 	CHECK(ZFS_IOC_BASE + 30 == ZFS_IOC_CLEAR_FAULT);
985 	CHECK(ZFS_IOC_BASE + 31 == ZFS_IOC_INJECT_LIST_NEXT);
986 	CHECK(ZFS_IOC_BASE + 32 == ZFS_IOC_ERROR_LOG);
987 	CHECK(ZFS_IOC_BASE + 33 == ZFS_IOC_CLEAR);
988 	CHECK(ZFS_IOC_BASE + 34 == ZFS_IOC_PROMOTE);
989 	CHECK(ZFS_IOC_BASE + 35 == ZFS_IOC_SNAPSHOT);
990 	CHECK(ZFS_IOC_BASE + 36 == ZFS_IOC_DSOBJ_TO_DSNAME);
991 	CHECK(ZFS_IOC_BASE + 37 == ZFS_IOC_OBJ_TO_PATH);
992 	CHECK(ZFS_IOC_BASE + 38 == ZFS_IOC_POOL_SET_PROPS);
993 	CHECK(ZFS_IOC_BASE + 39 == ZFS_IOC_POOL_GET_PROPS);
994 	CHECK(ZFS_IOC_BASE + 40 == ZFS_IOC_SET_FSACL);
995 	CHECK(ZFS_IOC_BASE + 41 == ZFS_IOC_GET_FSACL);
996 	CHECK(ZFS_IOC_BASE + 42 == ZFS_IOC_SHARE);
997 	CHECK(ZFS_IOC_BASE + 43 == ZFS_IOC_INHERIT_PROP);
998 	CHECK(ZFS_IOC_BASE + 44 == ZFS_IOC_SMB_ACL);
999 	CHECK(ZFS_IOC_BASE + 45 == ZFS_IOC_USERSPACE_ONE);
1000 	CHECK(ZFS_IOC_BASE + 46 == ZFS_IOC_USERSPACE_MANY);
1001 	CHECK(ZFS_IOC_BASE + 47 == ZFS_IOC_USERSPACE_UPGRADE);
1002 	CHECK(ZFS_IOC_BASE + 48 == ZFS_IOC_HOLD);
1003 	CHECK(ZFS_IOC_BASE + 49 == ZFS_IOC_RELEASE);
1004 	CHECK(ZFS_IOC_BASE + 50 == ZFS_IOC_GET_HOLDS);
1005 	CHECK(ZFS_IOC_BASE + 51 == ZFS_IOC_OBJSET_RECVD_PROPS);
1006 	CHECK(ZFS_IOC_BASE + 52 == ZFS_IOC_VDEV_SPLIT);
1007 	CHECK(ZFS_IOC_BASE + 53 == ZFS_IOC_NEXT_OBJ);
1008 	CHECK(ZFS_IOC_BASE + 54 == ZFS_IOC_DIFF);
1009 	CHECK(ZFS_IOC_BASE + 55 == ZFS_IOC_TMP_SNAPSHOT);
1010 	CHECK(ZFS_IOC_BASE + 56 == ZFS_IOC_OBJ_TO_STATS);
1011 	CHECK(ZFS_IOC_BASE + 57 == ZFS_IOC_SPACE_WRITTEN);
1012 	CHECK(ZFS_IOC_BASE + 58 == ZFS_IOC_SPACE_SNAPS);
1013 	CHECK(ZFS_IOC_BASE + 59 == ZFS_IOC_DESTROY_SNAPS);
1014 	CHECK(ZFS_IOC_BASE + 60 == ZFS_IOC_POOL_REGUID);
1015 	CHECK(ZFS_IOC_BASE + 61 == ZFS_IOC_POOL_REOPEN);
1016 	CHECK(ZFS_IOC_BASE + 62 == ZFS_IOC_SEND_PROGRESS);
1017 	CHECK(ZFS_IOC_BASE + 63 == ZFS_IOC_LOG_HISTORY);
1018 	CHECK(ZFS_IOC_BASE + 64 == ZFS_IOC_SEND_NEW);
1019 	CHECK(ZFS_IOC_BASE + 65 == ZFS_IOC_SEND_SPACE);
1020 	CHECK(ZFS_IOC_BASE + 66 == ZFS_IOC_CLONE);
1021 	CHECK(ZFS_IOC_BASE + 67 == ZFS_IOC_BOOKMARK);
1022 	CHECK(ZFS_IOC_BASE + 68 == ZFS_IOC_GET_BOOKMARKS);
1023 	CHECK(ZFS_IOC_BASE + 69 == ZFS_IOC_DESTROY_BOOKMARKS);
1024 	CHECK(ZFS_IOC_BASE + 70 == ZFS_IOC_RECV_NEW);
1025 	CHECK(ZFS_IOC_BASE + 71 == ZFS_IOC_POOL_SYNC);
1026 	CHECK(ZFS_IOC_BASE + 72 == ZFS_IOC_CHANNEL_PROGRAM);
1027 	CHECK(ZFS_IOC_BASE + 73 == ZFS_IOC_LOAD_KEY);
1028 	CHECK(ZFS_IOC_BASE + 74 == ZFS_IOC_UNLOAD_KEY);
1029 	CHECK(ZFS_IOC_BASE + 75 == ZFS_IOC_CHANGE_KEY);
1030 	CHECK(ZFS_IOC_BASE + 76 == ZFS_IOC_REMAP);
1031 	CHECK(ZFS_IOC_BASE + 77 == ZFS_IOC_POOL_CHECKPOINT);
1032 	CHECK(ZFS_IOC_BASE + 78 == ZFS_IOC_POOL_DISCARD_CHECKPOINT);
1033 	CHECK(ZFS_IOC_BASE + 79 == ZFS_IOC_POOL_INITIALIZE);
1034 	CHECK(ZFS_IOC_BASE + 80 == ZFS_IOC_POOL_TRIM);
1035 	CHECK(ZFS_IOC_BASE + 81 == ZFS_IOC_REDACT);
1036 	CHECK(ZFS_IOC_BASE + 82 == ZFS_IOC_GET_BOOKMARK_PROPS);
1037 	CHECK(ZFS_IOC_BASE + 83 == ZFS_IOC_WAIT);
1038 	CHECK(ZFS_IOC_BASE + 84 == ZFS_IOC_WAIT_FS);
1039 	CHECK(ZFS_IOC_BASE + 87 == ZFS_IOC_POOL_SCRUB);
1040 	CHECK(ZFS_IOC_PLATFORM_BASE + 1 == ZFS_IOC_EVENTS_NEXT);
1041 	CHECK(ZFS_IOC_PLATFORM_BASE + 2 == ZFS_IOC_EVENTS_CLEAR);
1042 	CHECK(ZFS_IOC_PLATFORM_BASE + 3 == ZFS_IOC_EVENTS_SEEK);
1043 	CHECK(ZFS_IOC_PLATFORM_BASE + 4 == ZFS_IOC_NEXTBOOT);
1044 	CHECK(ZFS_IOC_PLATFORM_BASE + 5 == ZFS_IOC_JAIL);
1045 	CHECK(ZFS_IOC_PLATFORM_BASE + 6 == ZFS_IOC_UNJAIL);
1046 	CHECK(ZFS_IOC_PLATFORM_BASE + 7 == ZFS_IOC_SET_BOOTENV);
1047 	CHECK(ZFS_IOC_PLATFORM_BASE + 8 == ZFS_IOC_GET_BOOTENV);
1048 
1049 #undef CHECK
1050 
1051 	return (result);
1052 }
1053 
1054 int
1055 main(int argc, const char *argv[])
1056 {
1057 	if (argc != 2) {
1058 		(void) fprintf(stderr, "usage: %s <pool>\n", argv[0]);
1059 		exit(2);
1060 	}
1061 
1062 	if (!validate_ioc_values()) {
1063 		(void) fprintf(stderr, "WARNING: zfs_ioc_t has binary "
1064 		    "incompatible command values\n");
1065 		exit(3);
1066 	}
1067 
1068 	(void) libzfs_core_init();
1069 	zfs_fd = open(ZFS_DEV, O_RDWR);
1070 	if (zfs_fd < 0) {
1071 		(void) fprintf(stderr, "open: %s\n", strerror(errno));
1072 		libzfs_core_fini();
1073 		exit(2);
1074 	}
1075 
1076 	zfs_ioc_input_tests(argv[1]);
1077 
1078 	(void) close(zfs_fd);
1079 	libzfs_core_fini();
1080 
1081 	return (unexpected_failures);
1082 }
1083