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 <strings.h>
24 #include <libzfs_core.h>
25 #include <libzutil.h>
26 
27 #include <sys/nvpair.h>
28 #include <sys/vdev_impl.h>
29 #include <sys/zfs_ioctl.h>
30 #include <sys/zfs_bootenv.h>
31 
32 /*
33  * Test the nvpair inputs for the non-legacy zfs ioctl commands.
34  */
35 
36 boolean_t unexpected_failures;
37 int zfs_fd;
38 const char *active_test;
39 
40 /*
41  * Tracks which zfs_ioc_t commands were tested
42  */
43 boolean_t ioc_tested[ZFS_IOC_LAST - ZFS_IOC_FIRST];
44 
45 /*
46  * Legacy ioctls that are skipped (for now)
47  */
48 static unsigned 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
lzc_ioctl_run(zfs_ioc_t ioc,const char * name,nvlist_t * innvl,int expected)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 (zfs_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
lzc_ioctl_test(zfs_ioc_t ioc,const char * name,nvlist_t * required,nvlist_t * optional,int expected_error,boolean_t wildcard)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
test_pool_sync(const char * pool)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
test_pool_reopen(const char * pool)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
test_pool_checkpoint(const char * pool)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
test_pool_discard_checkpoint(const char * pool)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
test_log_history(const char * pool)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
test_create(const char * pool)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
test_snapshot(const char * pool,const char * snapshot)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
test_space_snaps(const char * snapshot)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
test_destroy_snaps(const char * pool,const char * snapshot)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
test_bookmark(const char * pool,const char * snapshot,const char * bookmark)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
test_get_bookmarks(const char * dataset)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
test_destroy_bookmarks(const char * pool,const char * bookmark)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
test_clone(const char * snapshot,const char * clone)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
test_rollback(const char * dataset,const char * snapshot)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
test_hold(const char * pool,const char * snapshot)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
test_get_holds(const char * snapshot)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
test_release(const char * pool,const char * snapshot)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
test_send_new(const char * snapshot,int fd)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
test_recv_new(const char * dataset,int fd)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 
533 	(void) snprintf(snapshot, sizeof (snapshot), "%s@replicant", dataset);
534 
535 	count = pread(fd, &drr, sizeof (drr), 0);
536 	if (count != sizeof (drr)) {
537 		(void) fprintf(stderr, "could not read stream: %s\n",
538 		    strerror(errno));
539 	}
540 
541 	fnvlist_add_string(required, "snapname", snapshot);
542 	fnvlist_add_byte_array(required, "begin_record", (uchar_t *)&drr,
543 	    sizeof (drr));
544 	fnvlist_add_int32(required, "input_fd", fd);
545 
546 	fnvlist_add_string(props, "org.openzfs:launch", "September 17th, 2013");
547 	fnvlist_add_nvlist(optional, "localprops", props);
548 	fnvlist_add_boolean(optional, "force");
549 	fnvlist_add_int32(optional, "cleanup_fd", cleanup_fd);
550 
551 	/*
552 	 * TODO - Resumable receive is harder to set up. So we currently
553 	 * ignore testing for one.
554 	 */
555 #if 0
556 	fnvlist_add_nvlist(optional, "props", recvdprops);
557 	fnvlist_add_string(optional, "origin", origin);
558 	fnvlist_add_boolean(optional, "resumable");
559 	fnvlist_add_uint64(optional, "action_handle", *action_handle);
560 #endif
561 	IOC_INPUT_TEST(ZFS_IOC_RECV_NEW, dataset, required, optional,
562 	    ZFS_ERR_STREAM_TRUNCATED);
563 
564 	nvlist_free(props);
565 	nvlist_free(optional);
566 	nvlist_free(required);
567 
568 	(void) close(cleanup_fd);
569 }
570 
571 static void
test_send_space(const char * snapshot1,const char * snapshot2)572 test_send_space(const char *snapshot1, const char *snapshot2)
573 {
574 	nvlist_t *optional = fnvlist_alloc();
575 
576 	fnvlist_add_string(optional, "from", snapshot1);
577 	fnvlist_add_boolean(optional, "largeblockok");
578 	fnvlist_add_boolean(optional, "embedok");
579 	fnvlist_add_boolean(optional, "compressok");
580 	fnvlist_add_boolean(optional, "rawok");
581 
582 	IOC_INPUT_TEST(ZFS_IOC_SEND_SPACE, snapshot2, NULL, optional, 0);
583 
584 	nvlist_free(optional);
585 }
586 
587 static void
test_remap(const char * dataset)588 test_remap(const char *dataset)
589 {
590 	IOC_INPUT_TEST(ZFS_IOC_REMAP, dataset, NULL, NULL, 0);
591 }
592 
593 static void
test_channel_program(const char * pool)594 test_channel_program(const char *pool)
595 {
596 	const char *program =
597 	    "arg = ...\n"
598 	    "argv = arg[\"argv\"]\n"
599 	    "return argv[1]";
600 	char *const argv[1] = { "Hello World!" };
601 	nvlist_t *required = fnvlist_alloc();
602 	nvlist_t *optional = fnvlist_alloc();
603 	nvlist_t *args = fnvlist_alloc();
604 
605 	fnvlist_add_string(required, "program", program);
606 	fnvlist_add_string_array(args, "argv", argv, 1);
607 	fnvlist_add_nvlist(required, "arg", args);
608 
609 	fnvlist_add_boolean_value(optional, "sync", B_TRUE);
610 	fnvlist_add_uint64(optional, "instrlimit", 1000 * 1000);
611 	fnvlist_add_uint64(optional, "memlimit", 8192 * 1024);
612 
613 	IOC_INPUT_TEST(ZFS_IOC_CHANNEL_PROGRAM, pool, required, optional, 0);
614 
615 	nvlist_free(args);
616 	nvlist_free(optional);
617 	nvlist_free(required);
618 }
619 
620 #define	WRAPPING_KEY_LEN	32
621 
622 static void
test_load_key(const char * dataset)623 test_load_key(const char *dataset)
624 {
625 	nvlist_t *required = fnvlist_alloc();
626 	nvlist_t *optional = fnvlist_alloc();
627 	nvlist_t *hidden = fnvlist_alloc();
628 	uint8_t keydata[WRAPPING_KEY_LEN] = {0};
629 
630 	fnvlist_add_uint8_array(hidden, "wkeydata", keydata, sizeof (keydata));
631 	fnvlist_add_nvlist(required, "hidden_args", hidden);
632 	fnvlist_add_boolean(optional, "noop");
633 
634 	IOC_INPUT_TEST(ZFS_IOC_LOAD_KEY, dataset, required, optional, EINVAL);
635 	nvlist_free(hidden);
636 	nvlist_free(optional);
637 	nvlist_free(required);
638 }
639 
640 static void
test_change_key(const char * dataset)641 test_change_key(const char *dataset)
642 {
643 	IOC_INPUT_TEST(ZFS_IOC_CHANGE_KEY, dataset, NULL, NULL, EINVAL);
644 }
645 
646 static void
test_unload_key(const char * dataset)647 test_unload_key(const char *dataset)
648 {
649 	IOC_INPUT_TEST(ZFS_IOC_UNLOAD_KEY, dataset, NULL, NULL, EACCES);
650 }
651 
652 static void
test_vdev_initialize(const char * pool)653 test_vdev_initialize(const char *pool)
654 {
655 	nvlist_t *required = fnvlist_alloc();
656 	nvlist_t *vdev_guids = fnvlist_alloc();
657 
658 	fnvlist_add_uint64(vdev_guids, "path", 0xdeadbeefdeadbeef);
659 	fnvlist_add_uint64(required, ZPOOL_INITIALIZE_COMMAND,
660 	    POOL_INITIALIZE_START);
661 	fnvlist_add_nvlist(required, ZPOOL_INITIALIZE_VDEVS, vdev_guids);
662 
663 	IOC_INPUT_TEST(ZFS_IOC_POOL_INITIALIZE, pool, required, NULL, EINVAL);
664 	nvlist_free(vdev_guids);
665 	nvlist_free(required);
666 }
667 
668 static void
test_vdev_trim(const char * pool)669 test_vdev_trim(const char *pool)
670 {
671 	nvlist_t *required = fnvlist_alloc();
672 	nvlist_t *optional = fnvlist_alloc();
673 	nvlist_t *vdev_guids = fnvlist_alloc();
674 
675 	fnvlist_add_uint64(vdev_guids, "path", 0xdeadbeefdeadbeef);
676 	fnvlist_add_uint64(required, ZPOOL_TRIM_COMMAND, POOL_TRIM_START);
677 	fnvlist_add_nvlist(required, ZPOOL_TRIM_VDEVS, vdev_guids);
678 	fnvlist_add_uint64(optional, ZPOOL_TRIM_RATE, 1ULL << 30);
679 	fnvlist_add_boolean_value(optional, ZPOOL_TRIM_SECURE, B_TRUE);
680 
681 	IOC_INPUT_TEST(ZFS_IOC_POOL_TRIM, pool, required, optional, EINVAL);
682 	nvlist_free(vdev_guids);
683 	nvlist_free(optional);
684 	nvlist_free(required);
685 }
686 
687 static int
zfs_destroy(const char * dataset)688 zfs_destroy(const char *dataset)
689 {
690 	zfs_cmd_t zc = {"\0"};
691 	int err;
692 
693 	(void) strlcpy(zc.zc_name, dataset, sizeof (zc.zc_name));
694 	zc.zc_name[sizeof (zc.zc_name) - 1] = '\0';
695 	err = zfs_ioctl_fd(zfs_fd, ZFS_IOC_DESTROY, &zc);
696 
697 	return (err == 0 ? 0 : errno);
698 }
699 
700 static void
test_redact(const char * snapshot1,const char * snapshot2)701 test_redact(const char *snapshot1, const char *snapshot2)
702 {
703 	nvlist_t *required = fnvlist_alloc();
704 	nvlist_t *snapnv = fnvlist_alloc();
705 	char bookmark[MAXNAMELEN + 32];
706 
707 	fnvlist_add_string(required, "bookname", "testbookmark");
708 	fnvlist_add_boolean(snapnv, snapshot2);
709 	fnvlist_add_nvlist(required, "snapnv", snapnv);
710 
711 	IOC_INPUT_TEST(ZFS_IOC_REDACT, snapshot1, required, NULL, 0);
712 
713 	nvlist_free(snapnv);
714 	nvlist_free(required);
715 
716 	strlcpy(bookmark, snapshot1, sizeof (bookmark));
717 	*strchr(bookmark, '@') = '\0';
718 	strlcat(bookmark, "#testbookmark", sizeof (bookmark) -
719 	    strlen(bookmark));
720 	zfs_destroy(bookmark);
721 }
722 
723 static void
test_get_bookmark_props(const char * bookmark)724 test_get_bookmark_props(const char *bookmark)
725 {
726 	IOC_INPUT_TEST(ZFS_IOC_GET_BOOKMARK_PROPS, bookmark, NULL, NULL, 0);
727 }
728 
729 static void
test_wait(const char * pool)730 test_wait(const char *pool)
731 {
732 	nvlist_t *required = fnvlist_alloc();
733 	nvlist_t *optional = fnvlist_alloc();
734 
735 	fnvlist_add_int32(required, "wait_activity", 2);
736 	fnvlist_add_uint64(optional, "wait_tag", 0xdeadbeefdeadbeef);
737 
738 	IOC_INPUT_TEST(ZFS_IOC_WAIT, pool, required, optional, EINVAL);
739 
740 	nvlist_free(required);
741 	nvlist_free(optional);
742 }
743 
744 static void
test_wait_fs(const char * dataset)745 test_wait_fs(const char *dataset)
746 {
747 	nvlist_t *required = fnvlist_alloc();
748 
749 	fnvlist_add_int32(required, "wait_activity", 2);
750 
751 	IOC_INPUT_TEST(ZFS_IOC_WAIT_FS, dataset, required, NULL, EINVAL);
752 
753 	nvlist_free(required);
754 }
755 
756 static void
test_get_bootenv(const char * pool)757 test_get_bootenv(const char *pool)
758 {
759 	IOC_INPUT_TEST(ZFS_IOC_GET_BOOTENV, pool, NULL, NULL, 0);
760 }
761 
762 static void
test_set_bootenv(const char * pool)763 test_set_bootenv(const char *pool)
764 {
765 	nvlist_t *required = fnvlist_alloc();
766 
767 	fnvlist_add_uint64(required, "version", VB_RAW);
768 	fnvlist_add_string(required, GRUB_ENVMAP, "test");
769 
770 	IOC_INPUT_TEST_WILD(ZFS_IOC_SET_BOOTENV, pool, required, NULL, 0);
771 
772 	nvlist_free(required);
773 }
774 
775 static void
zfs_ioc_input_tests(const char * pool)776 zfs_ioc_input_tests(const char *pool)
777 {
778 	char filepath[] = "/tmp/ioc_test_file_XXXXXX";
779 	char dataset[ZFS_MAX_DATASET_NAME_LEN];
780 	char snapbase[ZFS_MAX_DATASET_NAME_LEN + 32];
781 	char snapshot[ZFS_MAX_DATASET_NAME_LEN + 32];
782 	char bookmark[ZFS_MAX_DATASET_NAME_LEN + 32];
783 	char backup[ZFS_MAX_DATASET_NAME_LEN];
784 	char clone[ZFS_MAX_DATASET_NAME_LEN];
785 	char clonesnap[ZFS_MAX_DATASET_NAME_LEN + 32];
786 	int tmpfd, err;
787 
788 	/*
789 	 * Setup names and create a working dataset
790 	 */
791 	(void) snprintf(dataset, sizeof (dataset), "%s/test-fs", pool);
792 	(void) snprintf(snapbase, sizeof (snapbase), "%s@snapbase", dataset);
793 	(void) snprintf(snapshot, sizeof (snapshot), "%s@snapshot", dataset);
794 	(void) snprintf(bookmark, sizeof (bookmark), "%s#bookmark", dataset);
795 	(void) snprintf(clone, sizeof (clone), "%s/test-fs-clone", pool);
796 	(void) snprintf(clonesnap, sizeof (clonesnap), "%s@snap", clone);
797 	(void) snprintf(backup, sizeof (backup), "%s/backup", pool);
798 
799 	err = lzc_create(dataset, LZC_DATSET_TYPE_ZFS, NULL, NULL, -1);
800 	if (err) {
801 		(void) fprintf(stderr, "could not create '%s': %s\n",
802 		    dataset, strerror(errno));
803 		exit(2);
804 	}
805 
806 	tmpfd = mkstemp(filepath);
807 	if (tmpfd < 0) {
808 		(void) fprintf(stderr, "could not create '%s': %s\n",
809 		    filepath, strerror(errno));
810 		exit(2);
811 	}
812 
813 	/*
814 	 * run a test for each ioctl
815 	 * Note that some test build on previous test operations
816 	 */
817 	test_pool_sync(pool);
818 	test_pool_reopen(pool);
819 	test_pool_checkpoint(pool);
820 	test_pool_discard_checkpoint(pool);
821 	test_log_history(pool);
822 
823 	test_create(dataset);
824 	test_snapshot(pool, snapbase);
825 	test_snapshot(pool, snapshot);
826 
827 	test_space_snaps(snapshot);
828 	test_send_space(snapbase, snapshot);
829 	test_send_new(snapshot, tmpfd);
830 	test_recv_new(backup, tmpfd);
831 
832 	test_bookmark(pool, snapshot, bookmark);
833 	test_get_bookmarks(dataset);
834 	test_get_bookmark_props(bookmark);
835 	test_destroy_bookmarks(pool, bookmark);
836 
837 	test_hold(pool, snapshot);
838 	test_get_holds(snapshot);
839 	test_release(pool, snapshot);
840 
841 	test_clone(snapshot, clone);
842 	test_snapshot(pool, clonesnap);
843 	test_redact(snapshot, clonesnap);
844 	zfs_destroy(clonesnap);
845 	zfs_destroy(clone);
846 
847 	test_rollback(dataset, snapshot);
848 	test_destroy_snaps(pool, snapshot);
849 	test_destroy_snaps(pool, snapbase);
850 
851 	test_remap(dataset);
852 	test_channel_program(pool);
853 
854 	test_load_key(dataset);
855 	test_change_key(dataset);
856 	test_unload_key(dataset);
857 
858 	test_vdev_initialize(pool);
859 	test_vdev_trim(pool);
860 
861 	test_wait(pool);
862 	test_wait_fs(dataset);
863 
864 	test_set_bootenv(pool);
865 	test_get_bootenv(pool);
866 
867 	/*
868 	 * cleanup
869 	 */
870 	zfs_cmd_t zc = {"\0"};
871 
872 	nvlist_t *snaps = fnvlist_alloc();
873 	fnvlist_add_boolean(snaps, snapshot);
874 	(void) lzc_destroy_snaps(snaps, B_FALSE, NULL);
875 	nvlist_free(snaps);
876 
877 	(void) zfs_destroy(dataset);
878 	(void) zfs_destroy(backup);
879 
880 	(void) close(tmpfd);
881 	(void) unlink(filepath);
882 
883 	/*
884 	 * All the unused slots should yield ZFS_ERR_IOC_CMD_UNAVAIL
885 	 */
886 	for (int i = 0; i < ARRAY_SIZE(ioc_skip); i++) {
887 		if (ioc_tested[ioc_skip[i] - ZFS_IOC_FIRST])
888 			(void) fprintf(stderr, "cmd %d tested, not skipped!\n",
889 			    (int)(ioc_skip[i] - ZFS_IOC_FIRST));
890 
891 		ioc_tested[ioc_skip[i] - ZFS_IOC_FIRST] = B_TRUE;
892 	}
893 
894 	(void) strlcpy(zc.zc_name, pool, sizeof (zc.zc_name));
895 	zc.zc_name[sizeof (zc.zc_name) - 1] = '\0';
896 
897 	for (unsigned ioc = ZFS_IOC_FIRST; ioc < ZFS_IOC_LAST; ioc++) {
898 		unsigned cmd = ioc - ZFS_IOC_FIRST;
899 
900 		if (ioc_tested[cmd])
901 			continue;
902 
903 		if (zfs_ioctl_fd(zfs_fd, ioc, &zc) != 0 &&
904 		    errno != ZFS_ERR_IOC_CMD_UNAVAIL) {
905 			(void) fprintf(stderr, "cmd %d is missing a test case "
906 			    "(%d)\n", cmd, errno);
907 		}
908 	}
909 }
910 
911 enum zfs_ioc_ref {
912 #ifdef __FreeBSD__
913 	ZFS_IOC_BASE = 0,
914 #else
915 	ZFS_IOC_BASE = ('Z' << 8),
916 #endif
917 	ZFS_IOC_PLATFORM_BASE = ZFS_IOC_BASE + 0x80,
918 };
919 
920 /*
921  * Canonical reference check of /dev/zfs ioctl numbers.
922  * These cannot change and new ioctl numbers must be appended.
923  */
924 static boolean_t
validate_ioc_values(void)925 validate_ioc_values(void)
926 {
927 	boolean_t result = B_TRUE;
928 
929 #define	CHECK(expr) do { \
930 	if (!(expr)) { \
931 		result = B_FALSE; \
932 		fprintf(stderr, "(%s) === FALSE\n", #expr); \
933 	} \
934 } while (0)
935 
936 	CHECK(ZFS_IOC_BASE + 0 == ZFS_IOC_POOL_CREATE);
937 	CHECK(ZFS_IOC_BASE + 1 == ZFS_IOC_POOL_DESTROY);
938 	CHECK(ZFS_IOC_BASE + 2 == ZFS_IOC_POOL_IMPORT);
939 	CHECK(ZFS_IOC_BASE + 3 == ZFS_IOC_POOL_EXPORT);
940 	CHECK(ZFS_IOC_BASE + 4 == ZFS_IOC_POOL_CONFIGS);
941 	CHECK(ZFS_IOC_BASE + 5 == ZFS_IOC_POOL_STATS);
942 	CHECK(ZFS_IOC_BASE + 6 == ZFS_IOC_POOL_TRYIMPORT);
943 	CHECK(ZFS_IOC_BASE + 7 == ZFS_IOC_POOL_SCAN);
944 	CHECK(ZFS_IOC_BASE + 8 == ZFS_IOC_POOL_FREEZE);
945 	CHECK(ZFS_IOC_BASE + 9 == ZFS_IOC_POOL_UPGRADE);
946 	CHECK(ZFS_IOC_BASE + 10 == ZFS_IOC_POOL_GET_HISTORY);
947 	CHECK(ZFS_IOC_BASE + 11 == ZFS_IOC_VDEV_ADD);
948 	CHECK(ZFS_IOC_BASE + 12 == ZFS_IOC_VDEV_REMOVE);
949 	CHECK(ZFS_IOC_BASE + 13 == ZFS_IOC_VDEV_SET_STATE);
950 	CHECK(ZFS_IOC_BASE + 14 == ZFS_IOC_VDEV_ATTACH);
951 	CHECK(ZFS_IOC_BASE + 15 == ZFS_IOC_VDEV_DETACH);
952 	CHECK(ZFS_IOC_BASE + 16 == ZFS_IOC_VDEV_SETPATH);
953 	CHECK(ZFS_IOC_BASE + 17 == ZFS_IOC_VDEV_SETFRU);
954 	CHECK(ZFS_IOC_BASE + 18 == ZFS_IOC_OBJSET_STATS);
955 	CHECK(ZFS_IOC_BASE + 19 == ZFS_IOC_OBJSET_ZPLPROPS);
956 	CHECK(ZFS_IOC_BASE + 20 == ZFS_IOC_DATASET_LIST_NEXT);
957 	CHECK(ZFS_IOC_BASE + 21 == ZFS_IOC_SNAPSHOT_LIST_NEXT);
958 	CHECK(ZFS_IOC_BASE + 22 == ZFS_IOC_SET_PROP);
959 	CHECK(ZFS_IOC_BASE + 23 == ZFS_IOC_CREATE);
960 	CHECK(ZFS_IOC_BASE + 24 == ZFS_IOC_DESTROY);
961 	CHECK(ZFS_IOC_BASE + 25 == ZFS_IOC_ROLLBACK);
962 	CHECK(ZFS_IOC_BASE + 26 == ZFS_IOC_RENAME);
963 	CHECK(ZFS_IOC_BASE + 27 == ZFS_IOC_RECV);
964 	CHECK(ZFS_IOC_BASE + 28 == ZFS_IOC_SEND);
965 	CHECK(ZFS_IOC_BASE + 29 == ZFS_IOC_INJECT_FAULT);
966 	CHECK(ZFS_IOC_BASE + 30 == ZFS_IOC_CLEAR_FAULT);
967 	CHECK(ZFS_IOC_BASE + 31 == ZFS_IOC_INJECT_LIST_NEXT);
968 	CHECK(ZFS_IOC_BASE + 32 == ZFS_IOC_ERROR_LOG);
969 	CHECK(ZFS_IOC_BASE + 33 == ZFS_IOC_CLEAR);
970 	CHECK(ZFS_IOC_BASE + 34 == ZFS_IOC_PROMOTE);
971 	CHECK(ZFS_IOC_BASE + 35 == ZFS_IOC_SNAPSHOT);
972 	CHECK(ZFS_IOC_BASE + 36 == ZFS_IOC_DSOBJ_TO_DSNAME);
973 	CHECK(ZFS_IOC_BASE + 37 == ZFS_IOC_OBJ_TO_PATH);
974 	CHECK(ZFS_IOC_BASE + 38 == ZFS_IOC_POOL_SET_PROPS);
975 	CHECK(ZFS_IOC_BASE + 39 == ZFS_IOC_POOL_GET_PROPS);
976 	CHECK(ZFS_IOC_BASE + 40 == ZFS_IOC_SET_FSACL);
977 	CHECK(ZFS_IOC_BASE + 41 == ZFS_IOC_GET_FSACL);
978 	CHECK(ZFS_IOC_BASE + 42 == ZFS_IOC_SHARE);
979 	CHECK(ZFS_IOC_BASE + 43 == ZFS_IOC_INHERIT_PROP);
980 	CHECK(ZFS_IOC_BASE + 44 == ZFS_IOC_SMB_ACL);
981 	CHECK(ZFS_IOC_BASE + 45 == ZFS_IOC_USERSPACE_ONE);
982 	CHECK(ZFS_IOC_BASE + 46 == ZFS_IOC_USERSPACE_MANY);
983 	CHECK(ZFS_IOC_BASE + 47 == ZFS_IOC_USERSPACE_UPGRADE);
984 	CHECK(ZFS_IOC_BASE + 48 == ZFS_IOC_HOLD);
985 	CHECK(ZFS_IOC_BASE + 49 == ZFS_IOC_RELEASE);
986 	CHECK(ZFS_IOC_BASE + 50 == ZFS_IOC_GET_HOLDS);
987 	CHECK(ZFS_IOC_BASE + 51 == ZFS_IOC_OBJSET_RECVD_PROPS);
988 	CHECK(ZFS_IOC_BASE + 52 == ZFS_IOC_VDEV_SPLIT);
989 	CHECK(ZFS_IOC_BASE + 53 == ZFS_IOC_NEXT_OBJ);
990 	CHECK(ZFS_IOC_BASE + 54 == ZFS_IOC_DIFF);
991 	CHECK(ZFS_IOC_BASE + 55 == ZFS_IOC_TMP_SNAPSHOT);
992 	CHECK(ZFS_IOC_BASE + 56 == ZFS_IOC_OBJ_TO_STATS);
993 	CHECK(ZFS_IOC_BASE + 57 == ZFS_IOC_SPACE_WRITTEN);
994 	CHECK(ZFS_IOC_BASE + 58 == ZFS_IOC_SPACE_SNAPS);
995 	CHECK(ZFS_IOC_BASE + 59 == ZFS_IOC_DESTROY_SNAPS);
996 	CHECK(ZFS_IOC_BASE + 60 == ZFS_IOC_POOL_REGUID);
997 	CHECK(ZFS_IOC_BASE + 61 == ZFS_IOC_POOL_REOPEN);
998 	CHECK(ZFS_IOC_BASE + 62 == ZFS_IOC_SEND_PROGRESS);
999 	CHECK(ZFS_IOC_BASE + 63 == ZFS_IOC_LOG_HISTORY);
1000 	CHECK(ZFS_IOC_BASE + 64 == ZFS_IOC_SEND_NEW);
1001 	CHECK(ZFS_IOC_BASE + 65 == ZFS_IOC_SEND_SPACE);
1002 	CHECK(ZFS_IOC_BASE + 66 == ZFS_IOC_CLONE);
1003 	CHECK(ZFS_IOC_BASE + 67 == ZFS_IOC_BOOKMARK);
1004 	CHECK(ZFS_IOC_BASE + 68 == ZFS_IOC_GET_BOOKMARKS);
1005 	CHECK(ZFS_IOC_BASE + 69 == ZFS_IOC_DESTROY_BOOKMARKS);
1006 	CHECK(ZFS_IOC_BASE + 70 == ZFS_IOC_RECV_NEW);
1007 	CHECK(ZFS_IOC_BASE + 71 == ZFS_IOC_POOL_SYNC);
1008 	CHECK(ZFS_IOC_BASE + 72 == ZFS_IOC_CHANNEL_PROGRAM);
1009 	CHECK(ZFS_IOC_BASE + 73 == ZFS_IOC_LOAD_KEY);
1010 	CHECK(ZFS_IOC_BASE + 74 == ZFS_IOC_UNLOAD_KEY);
1011 	CHECK(ZFS_IOC_BASE + 75 == ZFS_IOC_CHANGE_KEY);
1012 	CHECK(ZFS_IOC_BASE + 76 == ZFS_IOC_REMAP);
1013 	CHECK(ZFS_IOC_BASE + 77 == ZFS_IOC_POOL_CHECKPOINT);
1014 	CHECK(ZFS_IOC_BASE + 78 == ZFS_IOC_POOL_DISCARD_CHECKPOINT);
1015 	CHECK(ZFS_IOC_BASE + 79 == ZFS_IOC_POOL_INITIALIZE);
1016 	CHECK(ZFS_IOC_BASE + 80 == ZFS_IOC_POOL_TRIM);
1017 	CHECK(ZFS_IOC_BASE + 81 == ZFS_IOC_REDACT);
1018 	CHECK(ZFS_IOC_BASE + 82 == ZFS_IOC_GET_BOOKMARK_PROPS);
1019 	CHECK(ZFS_IOC_BASE + 83 == ZFS_IOC_WAIT);
1020 	CHECK(ZFS_IOC_BASE + 84 == ZFS_IOC_WAIT_FS);
1021 	CHECK(ZFS_IOC_PLATFORM_BASE + 1 == ZFS_IOC_EVENTS_NEXT);
1022 	CHECK(ZFS_IOC_PLATFORM_BASE + 2 == ZFS_IOC_EVENTS_CLEAR);
1023 	CHECK(ZFS_IOC_PLATFORM_BASE + 3 == ZFS_IOC_EVENTS_SEEK);
1024 	CHECK(ZFS_IOC_PLATFORM_BASE + 4 == ZFS_IOC_NEXTBOOT);
1025 	CHECK(ZFS_IOC_PLATFORM_BASE + 5 == ZFS_IOC_JAIL);
1026 	CHECK(ZFS_IOC_PLATFORM_BASE + 6 == ZFS_IOC_UNJAIL);
1027 	CHECK(ZFS_IOC_PLATFORM_BASE + 7 == ZFS_IOC_SET_BOOTENV);
1028 	CHECK(ZFS_IOC_PLATFORM_BASE + 8 == ZFS_IOC_GET_BOOTENV);
1029 
1030 #undef CHECK
1031 
1032 	return (result);
1033 }
1034 
1035 int
main(int argc,const char * argv[])1036 main(int argc, const char *argv[])
1037 {
1038 	if (argc != 2) {
1039 		(void) fprintf(stderr, "usage: %s <pool>\n", argv[0]);
1040 		exit(2);
1041 	}
1042 
1043 	if (!validate_ioc_values()) {
1044 		(void) fprintf(stderr, "WARNING: zfs_ioc_t has binary "
1045 		    "incompatible command values\n");
1046 		exit(3);
1047 	}
1048 
1049 	(void) libzfs_core_init();
1050 	zfs_fd = open(ZFS_DEV, O_RDWR);
1051 	if (zfs_fd < 0) {
1052 		(void) fprintf(stderr, "open: %s\n", strerror(errno));
1053 		libzfs_core_fini();
1054 		exit(2);
1055 	}
1056 
1057 	zfs_ioc_input_tests(argv[1]);
1058 
1059 	(void) close(zfs_fd);
1060 	libzfs_core_fini();
1061 
1062 	return (unexpected_failures);
1063 }
1064