xref: /titanic_50/usr/src/cmd/zpool/zpool_main.c (revision 8622ec4569457733001d4982ef7f5b44427069be)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 
22 /*
23  * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
24  * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
25  * Copyright (c) 2011, 2014 by Delphix. All rights reserved.
26  * Copyright (c) 2012 by Frederik Wessels. All rights reserved.
27  * Copyright (c) 2013 by Prasad Joshi (sTec). All rights reserved.
28  */
29 
30 #include <assert.h>
31 #include <ctype.h>
32 #include <dirent.h>
33 #include <errno.h>
34 #include <fcntl.h>
35 #include <libgen.h>
36 #include <libintl.h>
37 #include <libuutil.h>
38 #include <locale.h>
39 #include <stdio.h>
40 #include <stdlib.h>
41 #include <string.h>
42 #include <strings.h>
43 #include <unistd.h>
44 #include <priv.h>
45 #include <pwd.h>
46 #include <zone.h>
47 #include <zfs_prop.h>
48 #include <sys/fs/zfs.h>
49 #include <sys/stat.h>
50 
51 #include <libzfs.h>
52 
53 #include "zpool_util.h"
54 #include "zfs_comutil.h"
55 #include "zfeature_common.h"
56 
57 #include "statcommon.h"
58 
59 static int zpool_do_create(int, char **);
60 static int zpool_do_destroy(int, char **);
61 
62 static int zpool_do_add(int, char **);
63 static int zpool_do_remove(int, char **);
64 
65 static int zpool_do_list(int, char **);
66 static int zpool_do_iostat(int, char **);
67 static int zpool_do_status(int, char **);
68 
69 static int zpool_do_online(int, char **);
70 static int zpool_do_offline(int, char **);
71 static int zpool_do_clear(int, char **);
72 static int zpool_do_reopen(int, char **);
73 
74 static int zpool_do_reguid(int, char **);
75 
76 static int zpool_do_attach(int, char **);
77 static int zpool_do_detach(int, char **);
78 static int zpool_do_replace(int, char **);
79 static int zpool_do_split(int, char **);
80 
81 static int zpool_do_scrub(int, char **);
82 
83 static int zpool_do_import(int, char **);
84 static int zpool_do_export(int, char **);
85 
86 static int zpool_do_upgrade(int, char **);
87 
88 static int zpool_do_history(int, char **);
89 
90 static int zpool_do_get(int, char **);
91 static int zpool_do_set(int, char **);
92 
93 /*
94  * These libumem hooks provide a reasonable set of defaults for the allocator's
95  * debugging facilities.
96  */
97 
98 #ifdef DEBUG
99 const char *
100 _umem_debug_init(void)
101 {
102 	return ("default,verbose"); /* $UMEM_DEBUG setting */
103 }
104 
105 const char *
106 _umem_logging_init(void)
107 {
108 	return ("fail,contents"); /* $UMEM_LOGGING setting */
109 }
110 #endif
111 
112 typedef enum {
113 	HELP_ADD,
114 	HELP_ATTACH,
115 	HELP_CLEAR,
116 	HELP_CREATE,
117 	HELP_DESTROY,
118 	HELP_DETACH,
119 	HELP_EXPORT,
120 	HELP_HISTORY,
121 	HELP_IMPORT,
122 	HELP_IOSTAT,
123 	HELP_LIST,
124 	HELP_OFFLINE,
125 	HELP_ONLINE,
126 	HELP_REPLACE,
127 	HELP_REMOVE,
128 	HELP_SCRUB,
129 	HELP_STATUS,
130 	HELP_UPGRADE,
131 	HELP_GET,
132 	HELP_SET,
133 	HELP_SPLIT,
134 	HELP_REGUID,
135 	HELP_REOPEN
136 } zpool_help_t;
137 
138 
139 typedef struct zpool_command {
140 	const char	*name;
141 	int		(*func)(int, char **);
142 	zpool_help_t	usage;
143 } zpool_command_t;
144 
145 /*
146  * Master command table.  Each ZFS command has a name, associated function, and
147  * usage message.  The usage messages need to be internationalized, so we have
148  * to have a function to return the usage message based on a command index.
149  *
150  * These commands are organized according to how they are displayed in the usage
151  * message.  An empty command (one with a NULL name) indicates an empty line in
152  * the generic usage message.
153  */
154 static zpool_command_t command_table[] = {
155 	{ "create",	zpool_do_create,	HELP_CREATE		},
156 	{ "destroy",	zpool_do_destroy,	HELP_DESTROY		},
157 	{ NULL },
158 	{ "add",	zpool_do_add,		HELP_ADD		},
159 	{ "remove",	zpool_do_remove,	HELP_REMOVE		},
160 	{ NULL },
161 	{ "list",	zpool_do_list,		HELP_LIST		},
162 	{ "iostat",	zpool_do_iostat,	HELP_IOSTAT		},
163 	{ "status",	zpool_do_status,	HELP_STATUS		},
164 	{ NULL },
165 	{ "online",	zpool_do_online,	HELP_ONLINE		},
166 	{ "offline",	zpool_do_offline,	HELP_OFFLINE		},
167 	{ "clear",	zpool_do_clear,		HELP_CLEAR		},
168 	{ "reopen",	zpool_do_reopen,	HELP_REOPEN		},
169 	{ NULL },
170 	{ "attach",	zpool_do_attach,	HELP_ATTACH		},
171 	{ "detach",	zpool_do_detach,	HELP_DETACH		},
172 	{ "replace",	zpool_do_replace,	HELP_REPLACE		},
173 	{ "split",	zpool_do_split,		HELP_SPLIT		},
174 	{ NULL },
175 	{ "scrub",	zpool_do_scrub,		HELP_SCRUB		},
176 	{ NULL },
177 	{ "import",	zpool_do_import,	HELP_IMPORT		},
178 	{ "export",	zpool_do_export,	HELP_EXPORT		},
179 	{ "upgrade",	zpool_do_upgrade,	HELP_UPGRADE		},
180 	{ "reguid",	zpool_do_reguid,	HELP_REGUID		},
181 	{ NULL },
182 	{ "history",	zpool_do_history,	HELP_HISTORY		},
183 	{ "get",	zpool_do_get,		HELP_GET		},
184 	{ "set",	zpool_do_set,		HELP_SET		},
185 };
186 
187 #define	NCOMMAND	(sizeof (command_table) / sizeof (command_table[0]))
188 
189 static zpool_command_t *current_command;
190 static char history_str[HIS_MAX_RECORD_LEN];
191 static boolean_t log_history = B_TRUE;
192 static uint_t timestamp_fmt = NODATE;
193 
194 static const char *
195 get_usage(zpool_help_t idx) {
196 	switch (idx) {
197 	case HELP_ADD:
198 		return (gettext("\tadd [-fn] <pool> <vdev> ...\n"));
199 	case HELP_ATTACH:
200 		return (gettext("\tattach [-f] <pool> <device> "
201 		    "<new-device>\n"));
202 	case HELP_CLEAR:
203 		return (gettext("\tclear [-nF] <pool> [device]\n"));
204 	case HELP_CREATE:
205 		return (gettext("\tcreate [-fnd] [-o property=value] ... \n"
206 		    "\t    [-O file-system-property=value] ... \n"
207 		    "\t    [-m mountpoint] [-R root] <pool> <vdev> ...\n"));
208 	case HELP_DESTROY:
209 		return (gettext("\tdestroy [-f] <pool>\n"));
210 	case HELP_DETACH:
211 		return (gettext("\tdetach <pool> <device>\n"));
212 	case HELP_EXPORT:
213 		return (gettext("\texport [-f] <pool> ...\n"));
214 	case HELP_HISTORY:
215 		return (gettext("\thistory [-il] [<pool>] ...\n"));
216 	case HELP_IMPORT:
217 		return (gettext("\timport [-d dir] [-D]\n"
218 		    "\timport [-d dir | -c cachefile] [-F [-n]] <pool | id>\n"
219 		    "\timport [-o mntopts] [-o property=value] ... \n"
220 		    "\t    [-d dir | -c cachefile] [-D] [-f] [-m] [-N] "
221 		    "[-R root] [-F [-n]] -a\n"
222 		    "\timport [-o mntopts] [-o property=value] ... \n"
223 		    "\t    [-d dir | -c cachefile] [-D] [-f] [-m] [-N] "
224 		    "[-R root] [-F [-n]]\n"
225 		    "\t    <pool | id> [newpool]\n"));
226 	case HELP_IOSTAT:
227 		return (gettext("\tiostat [-v] [-T d|u] [pool] ... [interval "
228 		    "[count]]\n"));
229 	case HELP_LIST:
230 		return (gettext("\tlist [-Hp] [-o property[,...]] "
231 		    "[-T d|u] [pool] ... [interval [count]]\n"));
232 	case HELP_OFFLINE:
233 		return (gettext("\toffline [-t] <pool> <device> ...\n"));
234 	case HELP_ONLINE:
235 		return (gettext("\tonline <pool> <device> ...\n"));
236 	case HELP_REPLACE:
237 		return (gettext("\treplace [-f] <pool> <device> "
238 		    "[new-device]\n"));
239 	case HELP_REMOVE:
240 		return (gettext("\tremove <pool> <device> ...\n"));
241 	case HELP_REOPEN:
242 		return (gettext("\treopen <pool>\n"));
243 	case HELP_SCRUB:
244 		return (gettext("\tscrub [-s] <pool> ...\n"));
245 	case HELP_STATUS:
246 		return (gettext("\tstatus [-vx] [-T d|u] [pool] ... [interval "
247 		    "[count]]\n"));
248 	case HELP_UPGRADE:
249 		return (gettext("\tupgrade\n"
250 		    "\tupgrade -v\n"
251 		    "\tupgrade [-V version] <-a | pool ...>\n"));
252 	case HELP_GET:
253 		return (gettext("\tget [-Hp] [-o \"all\" | field[,...]] "
254 		    "<\"all\" | property[,...]> <pool> ...\n"));
255 	case HELP_SET:
256 		return (gettext("\tset <property=value> <pool> \n"));
257 	case HELP_SPLIT:
258 		return (gettext("\tsplit [-n] [-R altroot] [-o mntopts]\n"
259 		    "\t    [-o property=value] <pool> <newpool> "
260 		    "[<device> ...]\n"));
261 	case HELP_REGUID:
262 		return (gettext("\treguid <pool>\n"));
263 	}
264 
265 	abort();
266 	/* NOTREACHED */
267 }
268 
269 
270 /*
271  * Callback routine that will print out a pool property value.
272  */
273 static int
274 print_prop_cb(int prop, void *cb)
275 {
276 	FILE *fp = cb;
277 
278 	(void) fprintf(fp, "\t%-15s  ", zpool_prop_to_name(prop));
279 
280 	if (zpool_prop_readonly(prop))
281 		(void) fprintf(fp, "  NO   ");
282 	else
283 		(void) fprintf(fp, " YES   ");
284 
285 	if (zpool_prop_values(prop) == NULL)
286 		(void) fprintf(fp, "-\n");
287 	else
288 		(void) fprintf(fp, "%s\n", zpool_prop_values(prop));
289 
290 	return (ZPROP_CONT);
291 }
292 
293 /*
294  * Display usage message.  If we're inside a command, display only the usage for
295  * that command.  Otherwise, iterate over the entire command table and display
296  * a complete usage message.
297  */
298 void
299 usage(boolean_t requested)
300 {
301 	FILE *fp = requested ? stdout : stderr;
302 
303 	if (current_command == NULL) {
304 		int i;
305 
306 		(void) fprintf(fp, gettext("usage: zpool command args ...\n"));
307 		(void) fprintf(fp,
308 		    gettext("where 'command' is one of the following:\n\n"));
309 
310 		for (i = 0; i < NCOMMAND; i++) {
311 			if (command_table[i].name == NULL)
312 				(void) fprintf(fp, "\n");
313 			else
314 				(void) fprintf(fp, "%s",
315 				    get_usage(command_table[i].usage));
316 		}
317 	} else {
318 		(void) fprintf(fp, gettext("usage:\n"));
319 		(void) fprintf(fp, "%s", get_usage(current_command->usage));
320 	}
321 
322 	if (current_command != NULL &&
323 	    ((strcmp(current_command->name, "set") == 0) ||
324 	    (strcmp(current_command->name, "get") == 0) ||
325 	    (strcmp(current_command->name, "list") == 0))) {
326 
327 		(void) fprintf(fp,
328 		    gettext("\nthe following properties are supported:\n"));
329 
330 		(void) fprintf(fp, "\n\t%-15s  %s   %s\n\n",
331 		    "PROPERTY", "EDIT", "VALUES");
332 
333 		/* Iterate over all properties */
334 		(void) zprop_iter(print_prop_cb, fp, B_FALSE, B_TRUE,
335 		    ZFS_TYPE_POOL);
336 
337 		(void) fprintf(fp, "\t%-15s   ", "feature@...");
338 		(void) fprintf(fp, "YES   disabled | enabled | active\n");
339 
340 		(void) fprintf(fp, gettext("\nThe feature@ properties must be "
341 		    "appended with a feature name.\nSee zpool-features(5).\n"));
342 	}
343 
344 	/*
345 	 * See comments at end of main().
346 	 */
347 	if (getenv("ZFS_ABORT") != NULL) {
348 		(void) printf("dumping core by request\n");
349 		abort();
350 	}
351 
352 	exit(requested ? 0 : 2);
353 }
354 
355 void
356 print_vdev_tree(zpool_handle_t *zhp, const char *name, nvlist_t *nv, int indent,
357     boolean_t print_logs)
358 {
359 	nvlist_t **child;
360 	uint_t c, children;
361 	char *vname;
362 
363 	if (name != NULL)
364 		(void) printf("\t%*s%s\n", indent, "", name);
365 
366 	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
367 	    &child, &children) != 0)
368 		return;
369 
370 	for (c = 0; c < children; c++) {
371 		uint64_t is_log = B_FALSE;
372 
373 		(void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_LOG,
374 		    &is_log);
375 		if ((is_log && !print_logs) || (!is_log && print_logs))
376 			continue;
377 
378 		vname = zpool_vdev_name(g_zfs, zhp, child[c], B_FALSE);
379 		print_vdev_tree(zhp, vname, child[c], indent + 2,
380 		    B_FALSE);
381 		free(vname);
382 	}
383 }
384 
385 static boolean_t
386 prop_list_contains_feature(nvlist_t *proplist)
387 {
388 	nvpair_t *nvp;
389 	for (nvp = nvlist_next_nvpair(proplist, NULL); NULL != nvp;
390 	    nvp = nvlist_next_nvpair(proplist, nvp)) {
391 		if (zpool_prop_feature(nvpair_name(nvp)))
392 			return (B_TRUE);
393 	}
394 	return (B_FALSE);
395 }
396 
397 /*
398  * Add a property pair (name, string-value) into a property nvlist.
399  */
400 static int
401 add_prop_list(const char *propname, char *propval, nvlist_t **props,
402     boolean_t poolprop)
403 {
404 	zpool_prop_t prop = ZPROP_INVAL;
405 	zfs_prop_t fprop;
406 	nvlist_t *proplist;
407 	const char *normnm;
408 	char *strval;
409 
410 	if (*props == NULL &&
411 	    nvlist_alloc(props, NV_UNIQUE_NAME, 0) != 0) {
412 		(void) fprintf(stderr,
413 		    gettext("internal error: out of memory\n"));
414 		return (1);
415 	}
416 
417 	proplist = *props;
418 
419 	if (poolprop) {
420 		const char *vname = zpool_prop_to_name(ZPOOL_PROP_VERSION);
421 
422 		if ((prop = zpool_name_to_prop(propname)) == ZPROP_INVAL &&
423 		    !zpool_prop_feature(propname)) {
424 			(void) fprintf(stderr, gettext("property '%s' is "
425 			    "not a valid pool property\n"), propname);
426 			return (2);
427 		}
428 
429 		/*
430 		 * feature@ properties and version should not be specified
431 		 * at the same time.
432 		 */
433 		if ((prop == ZPROP_INVAL && zpool_prop_feature(propname) &&
434 		    nvlist_exists(proplist, vname)) ||
435 		    (prop == ZPOOL_PROP_VERSION &&
436 		    prop_list_contains_feature(proplist))) {
437 			(void) fprintf(stderr, gettext("'feature@' and "
438 			    "'version' properties cannot be specified "
439 			    "together\n"));
440 			return (2);
441 		}
442 
443 
444 		if (zpool_prop_feature(propname))
445 			normnm = propname;
446 		else
447 			normnm = zpool_prop_to_name(prop);
448 	} else {
449 		if ((fprop = zfs_name_to_prop(propname)) != ZPROP_INVAL) {
450 			normnm = zfs_prop_to_name(fprop);
451 		} else {
452 			normnm = propname;
453 		}
454 	}
455 
456 	if (nvlist_lookup_string(proplist, normnm, &strval) == 0 &&
457 	    prop != ZPOOL_PROP_CACHEFILE) {
458 		(void) fprintf(stderr, gettext("property '%s' "
459 		    "specified multiple times\n"), propname);
460 		return (2);
461 	}
462 
463 	if (nvlist_add_string(proplist, normnm, propval) != 0) {
464 		(void) fprintf(stderr, gettext("internal "
465 		    "error: out of memory\n"));
466 		return (1);
467 	}
468 
469 	return (0);
470 }
471 
472 /*
473  * zpool add [-fn] <pool> <vdev> ...
474  *
475  *	-f	Force addition of devices, even if they appear in use
476  *	-n	Do not add the devices, but display the resulting layout if
477  *		they were to be added.
478  *
479  * Adds the given vdevs to 'pool'.  As with create, the bulk of this work is
480  * handled by get_vdev_spec(), which constructs the nvlist needed to pass to
481  * libzfs.
482  */
483 int
484 zpool_do_add(int argc, char **argv)
485 {
486 	boolean_t force = B_FALSE;
487 	boolean_t dryrun = B_FALSE;
488 	int c;
489 	nvlist_t *nvroot;
490 	char *poolname;
491 	int ret;
492 	zpool_handle_t *zhp;
493 	nvlist_t *config;
494 
495 	/* check options */
496 	while ((c = getopt(argc, argv, "fn")) != -1) {
497 		switch (c) {
498 		case 'f':
499 			force = B_TRUE;
500 			break;
501 		case 'n':
502 			dryrun = B_TRUE;
503 			break;
504 		case '?':
505 			(void) fprintf(stderr, gettext("invalid option '%c'\n"),
506 			    optopt);
507 			usage(B_FALSE);
508 		}
509 	}
510 
511 	argc -= optind;
512 	argv += optind;
513 
514 	/* get pool name and check number of arguments */
515 	if (argc < 1) {
516 		(void) fprintf(stderr, gettext("missing pool name argument\n"));
517 		usage(B_FALSE);
518 	}
519 	if (argc < 2) {
520 		(void) fprintf(stderr, gettext("missing vdev specification\n"));
521 		usage(B_FALSE);
522 	}
523 
524 	poolname = argv[0];
525 
526 	argc--;
527 	argv++;
528 
529 	if ((zhp = zpool_open(g_zfs, poolname)) == NULL)
530 		return (1);
531 
532 	if ((config = zpool_get_config(zhp, NULL)) == NULL) {
533 		(void) fprintf(stderr, gettext("pool '%s' is unavailable\n"),
534 		    poolname);
535 		zpool_close(zhp);
536 		return (1);
537 	}
538 
539 	/* pass off to get_vdev_spec for processing */
540 	nvroot = make_root_vdev(zhp, force, !force, B_FALSE, dryrun,
541 	    argc, argv);
542 	if (nvroot == NULL) {
543 		zpool_close(zhp);
544 		return (1);
545 	}
546 
547 	if (dryrun) {
548 		nvlist_t *poolnvroot;
549 
550 		verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
551 		    &poolnvroot) == 0);
552 
553 		(void) printf(gettext("would update '%s' to the following "
554 		    "configuration:\n"), zpool_get_name(zhp));
555 
556 		/* print original main pool and new tree */
557 		print_vdev_tree(zhp, poolname, poolnvroot, 0, B_FALSE);
558 		print_vdev_tree(zhp, NULL, nvroot, 0, B_FALSE);
559 
560 		/* Do the same for the logs */
561 		if (num_logs(poolnvroot) > 0) {
562 			print_vdev_tree(zhp, "logs", poolnvroot, 0, B_TRUE);
563 			print_vdev_tree(zhp, NULL, nvroot, 0, B_TRUE);
564 		} else if (num_logs(nvroot) > 0) {
565 			print_vdev_tree(zhp, "logs", nvroot, 0, B_TRUE);
566 		}
567 
568 		ret = 0;
569 	} else {
570 		ret = (zpool_add(zhp, nvroot) != 0);
571 	}
572 
573 	nvlist_free(nvroot);
574 	zpool_close(zhp);
575 
576 	return (ret);
577 }
578 
579 /*
580  * zpool remove  <pool> <vdev> ...
581  *
582  * Removes the given vdev from the pool.  Currently, this supports removing
583  * spares, cache, and log devices from the pool.
584  */
585 int
586 zpool_do_remove(int argc, char **argv)
587 {
588 	char *poolname;
589 	int i, ret = 0;
590 	zpool_handle_t *zhp;
591 
592 	argc--;
593 	argv++;
594 
595 	/* get pool name and check number of arguments */
596 	if (argc < 1) {
597 		(void) fprintf(stderr, gettext("missing pool name argument\n"));
598 		usage(B_FALSE);
599 	}
600 	if (argc < 2) {
601 		(void) fprintf(stderr, gettext("missing device\n"));
602 		usage(B_FALSE);
603 	}
604 
605 	poolname = argv[0];
606 
607 	if ((zhp = zpool_open(g_zfs, poolname)) == NULL)
608 		return (1);
609 
610 	for (i = 1; i < argc; i++) {
611 		if (zpool_vdev_remove(zhp, argv[i]) != 0)
612 			ret = 1;
613 	}
614 
615 	return (ret);
616 }
617 
618 /*
619  * zpool create [-fnd] [-o property=value] ...
620  *		[-O file-system-property=value] ...
621  *		[-R root] [-m mountpoint] <pool> <dev> ...
622  *
623  *	-f	Force creation, even if devices appear in use
624  *	-n	Do not create the pool, but display the resulting layout if it
625  *		were to be created.
626  *      -R	Create a pool under an alternate root
627  *      -m	Set default mountpoint for the root dataset.  By default it's
628  *		'/<pool>'
629  *	-o	Set property=value.
630  *	-d	Don't automatically enable all supported pool features
631  *		(individual features can be enabled with -o).
632  *	-O	Set fsproperty=value in the pool's root file system
633  *
634  * Creates the named pool according to the given vdev specification.  The
635  * bulk of the vdev processing is done in get_vdev_spec() in zpool_vdev.c.  Once
636  * we get the nvlist back from get_vdev_spec(), we either print out the contents
637  * (if '-n' was specified), or pass it to libzfs to do the creation.
638  */
639 int
640 zpool_do_create(int argc, char **argv)
641 {
642 	boolean_t force = B_FALSE;
643 	boolean_t dryrun = B_FALSE;
644 	boolean_t enable_all_pool_feat = B_TRUE;
645 	int c;
646 	nvlist_t *nvroot = NULL;
647 	char *poolname;
648 	int ret = 1;
649 	char *altroot = NULL;
650 	char *mountpoint = NULL;
651 	nvlist_t *fsprops = NULL;
652 	nvlist_t *props = NULL;
653 	char *propval;
654 
655 	/* check options */
656 	while ((c = getopt(argc, argv, ":fndR:m:o:O:")) != -1) {
657 		switch (c) {
658 		case 'f':
659 			force = B_TRUE;
660 			break;
661 		case 'n':
662 			dryrun = B_TRUE;
663 			break;
664 		case 'd':
665 			enable_all_pool_feat = B_FALSE;
666 			break;
667 		case 'R':
668 			altroot = optarg;
669 			if (add_prop_list(zpool_prop_to_name(
670 			    ZPOOL_PROP_ALTROOT), optarg, &props, B_TRUE))
671 				goto errout;
672 			if (nvlist_lookup_string(props,
673 			    zpool_prop_to_name(ZPOOL_PROP_CACHEFILE),
674 			    &propval) == 0)
675 				break;
676 			if (add_prop_list(zpool_prop_to_name(
677 			    ZPOOL_PROP_CACHEFILE), "none", &props, B_TRUE))
678 				goto errout;
679 			break;
680 		case 'm':
681 			/* Equivalent to -O mountpoint=optarg */
682 			mountpoint = optarg;
683 			break;
684 		case 'o':
685 			if ((propval = strchr(optarg, '=')) == NULL) {
686 				(void) fprintf(stderr, gettext("missing "
687 				    "'=' for -o option\n"));
688 				goto errout;
689 			}
690 			*propval = '\0';
691 			propval++;
692 
693 			if (add_prop_list(optarg, propval, &props, B_TRUE))
694 				goto errout;
695 
696 			/*
697 			 * If the user is creating a pool that doesn't support
698 			 * feature flags, don't enable any features.
699 			 */
700 			if (zpool_name_to_prop(optarg) == ZPOOL_PROP_VERSION) {
701 				char *end;
702 				u_longlong_t ver;
703 
704 				ver = strtoull(propval, &end, 10);
705 				if (*end == '\0' &&
706 				    ver < SPA_VERSION_FEATURES) {
707 					enable_all_pool_feat = B_FALSE;
708 				}
709 			}
710 			break;
711 		case 'O':
712 			if ((propval = strchr(optarg, '=')) == NULL) {
713 				(void) fprintf(stderr, gettext("missing "
714 				    "'=' for -O option\n"));
715 				goto errout;
716 			}
717 			*propval = '\0';
718 			propval++;
719 
720 			/*
721 			 * Mountpoints are checked and then added later.
722 			 * Uniquely among properties, they can be specified
723 			 * more than once, to avoid conflict with -m.
724 			 */
725 			if (0 == strcmp(optarg,
726 			    zfs_prop_to_name(ZFS_PROP_MOUNTPOINT))) {
727 				mountpoint = propval;
728 			} else if (add_prop_list(optarg, propval, &fsprops,
729 			    B_FALSE)) {
730 				goto errout;
731 			}
732 			break;
733 		case ':':
734 			(void) fprintf(stderr, gettext("missing argument for "
735 			    "'%c' option\n"), optopt);
736 			goto badusage;
737 		case '?':
738 			(void) fprintf(stderr, gettext("invalid option '%c'\n"),
739 			    optopt);
740 			goto badusage;
741 		}
742 	}
743 
744 	argc -= optind;
745 	argv += optind;
746 
747 	/* get pool name and check number of arguments */
748 	if (argc < 1) {
749 		(void) fprintf(stderr, gettext("missing pool name argument\n"));
750 		goto badusage;
751 	}
752 	if (argc < 2) {
753 		(void) fprintf(stderr, gettext("missing vdev specification\n"));
754 		goto badusage;
755 	}
756 
757 	poolname = argv[0];
758 
759 	/*
760 	 * As a special case, check for use of '/' in the name, and direct the
761 	 * user to use 'zfs create' instead.
762 	 */
763 	if (strchr(poolname, '/') != NULL) {
764 		(void) fprintf(stderr, gettext("cannot create '%s': invalid "
765 		    "character '/' in pool name\n"), poolname);
766 		(void) fprintf(stderr, gettext("use 'zfs create' to "
767 		    "create a dataset\n"));
768 		goto errout;
769 	}
770 
771 	/* pass off to get_vdev_spec for bulk processing */
772 	nvroot = make_root_vdev(NULL, force, !force, B_FALSE, dryrun,
773 	    argc - 1, argv + 1);
774 	if (nvroot == NULL)
775 		goto errout;
776 
777 	/* make_root_vdev() allows 0 toplevel children if there are spares */
778 	if (!zfs_allocatable_devs(nvroot)) {
779 		(void) fprintf(stderr, gettext("invalid vdev "
780 		    "specification: at least one toplevel vdev must be "
781 		    "specified\n"));
782 		goto errout;
783 	}
784 
785 	if (altroot != NULL && altroot[0] != '/') {
786 		(void) fprintf(stderr, gettext("invalid alternate root '%s': "
787 		    "must be an absolute path\n"), altroot);
788 		goto errout;
789 	}
790 
791 	/*
792 	 * Check the validity of the mountpoint and direct the user to use the
793 	 * '-m' mountpoint option if it looks like its in use.
794 	 */
795 	if (mountpoint == NULL ||
796 	    (strcmp(mountpoint, ZFS_MOUNTPOINT_LEGACY) != 0 &&
797 	    strcmp(mountpoint, ZFS_MOUNTPOINT_NONE) != 0)) {
798 		char buf[MAXPATHLEN];
799 		DIR *dirp;
800 
801 		if (mountpoint && mountpoint[0] != '/') {
802 			(void) fprintf(stderr, gettext("invalid mountpoint "
803 			    "'%s': must be an absolute path, 'legacy', or "
804 			    "'none'\n"), mountpoint);
805 			goto errout;
806 		}
807 
808 		if (mountpoint == NULL) {
809 			if (altroot != NULL)
810 				(void) snprintf(buf, sizeof (buf), "%s/%s",
811 				    altroot, poolname);
812 			else
813 				(void) snprintf(buf, sizeof (buf), "/%s",
814 				    poolname);
815 		} else {
816 			if (altroot != NULL)
817 				(void) snprintf(buf, sizeof (buf), "%s%s",
818 				    altroot, mountpoint);
819 			else
820 				(void) snprintf(buf, sizeof (buf), "%s",
821 				    mountpoint);
822 		}
823 
824 		if ((dirp = opendir(buf)) == NULL && errno != ENOENT) {
825 			(void) fprintf(stderr, gettext("mountpoint '%s' : "
826 			    "%s\n"), buf, strerror(errno));
827 			(void) fprintf(stderr, gettext("use '-m' "
828 			    "option to provide a different default\n"));
829 			goto errout;
830 		} else if (dirp) {
831 			int count = 0;
832 
833 			while (count < 3 && readdir(dirp) != NULL)
834 				count++;
835 			(void) closedir(dirp);
836 
837 			if (count > 2) {
838 				(void) fprintf(stderr, gettext("mountpoint "
839 				    "'%s' exists and is not empty\n"), buf);
840 				(void) fprintf(stderr, gettext("use '-m' "
841 				    "option to provide a "
842 				    "different default\n"));
843 				goto errout;
844 			}
845 		}
846 	}
847 
848 	/*
849 	 * Now that the mountpoint's validity has been checked, ensure that
850 	 * the property is set appropriately prior to creating the pool.
851 	 */
852 	if (mountpoint != NULL) {
853 		ret = add_prop_list(zfs_prop_to_name(ZFS_PROP_MOUNTPOINT),
854 		    mountpoint, &fsprops, B_FALSE);
855 		if (ret != 0)
856 			goto errout;
857 	}
858 
859 	ret = 1;
860 	if (dryrun) {
861 		/*
862 		 * For a dry run invocation, print out a basic message and run
863 		 * through all the vdevs in the list and print out in an
864 		 * appropriate hierarchy.
865 		 */
866 		(void) printf(gettext("would create '%s' with the "
867 		    "following layout:\n\n"), poolname);
868 
869 		print_vdev_tree(NULL, poolname, nvroot, 0, B_FALSE);
870 		if (num_logs(nvroot) > 0)
871 			print_vdev_tree(NULL, "logs", nvroot, 0, B_TRUE);
872 
873 		ret = 0;
874 	} else {
875 		/*
876 		 * Hand off to libzfs.
877 		 */
878 		if (enable_all_pool_feat) {
879 			spa_feature_t i;
880 			for (i = 0; i < SPA_FEATURES; i++) {
881 				char propname[MAXPATHLEN];
882 				zfeature_info_t *feat = &spa_feature_table[i];
883 
884 				(void) snprintf(propname, sizeof (propname),
885 				    "feature@%s", feat->fi_uname);
886 
887 				/*
888 				 * Skip feature if user specified it manually
889 				 * on the command line.
890 				 */
891 				if (nvlist_exists(props, propname))
892 					continue;
893 
894 				ret = add_prop_list(propname,
895 				    ZFS_FEATURE_ENABLED, &props, B_TRUE);
896 				if (ret != 0)
897 					goto errout;
898 			}
899 		}
900 
901 		ret = 1;
902 		if (zpool_create(g_zfs, poolname,
903 		    nvroot, props, fsprops) == 0) {
904 			zfs_handle_t *pool = zfs_open(g_zfs, poolname,
905 			    ZFS_TYPE_FILESYSTEM);
906 			if (pool != NULL) {
907 				if (zfs_mount(pool, NULL, 0) == 0)
908 					ret = zfs_shareall(pool);
909 				zfs_close(pool);
910 			}
911 		} else if (libzfs_errno(g_zfs) == EZFS_INVALIDNAME) {
912 			(void) fprintf(stderr, gettext("pool name may have "
913 			    "been omitted\n"));
914 		}
915 	}
916 
917 errout:
918 	nvlist_free(nvroot);
919 	nvlist_free(fsprops);
920 	nvlist_free(props);
921 	return (ret);
922 badusage:
923 	nvlist_free(fsprops);
924 	nvlist_free(props);
925 	usage(B_FALSE);
926 	return (2);
927 }
928 
929 /*
930  * zpool destroy <pool>
931  *
932  * 	-f	Forcefully unmount any datasets
933  *
934  * Destroy the given pool.  Automatically unmounts any datasets in the pool.
935  */
936 int
937 zpool_do_destroy(int argc, char **argv)
938 {
939 	boolean_t force = B_FALSE;
940 	int c;
941 	char *pool;
942 	zpool_handle_t *zhp;
943 	int ret;
944 
945 	/* check options */
946 	while ((c = getopt(argc, argv, "f")) != -1) {
947 		switch (c) {
948 		case 'f':
949 			force = B_TRUE;
950 			break;
951 		case '?':
952 			(void) fprintf(stderr, gettext("invalid option '%c'\n"),
953 			    optopt);
954 			usage(B_FALSE);
955 		}
956 	}
957 
958 	argc -= optind;
959 	argv += optind;
960 
961 	/* check arguments */
962 	if (argc < 1) {
963 		(void) fprintf(stderr, gettext("missing pool argument\n"));
964 		usage(B_FALSE);
965 	}
966 	if (argc > 1) {
967 		(void) fprintf(stderr, gettext("too many arguments\n"));
968 		usage(B_FALSE);
969 	}
970 
971 	pool = argv[0];
972 
973 	if ((zhp = zpool_open_canfail(g_zfs, pool)) == NULL) {
974 		/*
975 		 * As a special case, check for use of '/' in the name, and
976 		 * direct the user to use 'zfs destroy' instead.
977 		 */
978 		if (strchr(pool, '/') != NULL)
979 			(void) fprintf(stderr, gettext("use 'zfs destroy' to "
980 			    "destroy a dataset\n"));
981 		return (1);
982 	}
983 
984 	if (zpool_disable_datasets(zhp, force) != 0) {
985 		(void) fprintf(stderr, gettext("could not destroy '%s': "
986 		    "could not unmount datasets\n"), zpool_get_name(zhp));
987 		return (1);
988 	}
989 
990 	/* The history must be logged as part of the export */
991 	log_history = B_FALSE;
992 
993 	ret = (zpool_destroy(zhp, history_str) != 0);
994 
995 	zpool_close(zhp);
996 
997 	return (ret);
998 }
999 
1000 /*
1001  * zpool export [-f] <pool> ...
1002  *
1003  *	-f	Forcefully unmount datasets
1004  *
1005  * Export the given pools.  By default, the command will attempt to cleanly
1006  * unmount any active datasets within the pool.  If the '-f' flag is specified,
1007  * then the datasets will be forcefully unmounted.
1008  */
1009 int
1010 zpool_do_export(int argc, char **argv)
1011 {
1012 	boolean_t force = B_FALSE;
1013 	boolean_t hardforce = B_FALSE;
1014 	int c;
1015 	zpool_handle_t *zhp;
1016 	int ret;
1017 	int i;
1018 
1019 	/* check options */
1020 	while ((c = getopt(argc, argv, "fF")) != -1) {
1021 		switch (c) {
1022 		case 'f':
1023 			force = B_TRUE;
1024 			break;
1025 		case 'F':
1026 			hardforce = B_TRUE;
1027 			break;
1028 		case '?':
1029 			(void) fprintf(stderr, gettext("invalid option '%c'\n"),
1030 			    optopt);
1031 			usage(B_FALSE);
1032 		}
1033 	}
1034 
1035 	argc -= optind;
1036 	argv += optind;
1037 
1038 	/* check arguments */
1039 	if (argc < 1) {
1040 		(void) fprintf(stderr, gettext("missing pool argument\n"));
1041 		usage(B_FALSE);
1042 	}
1043 
1044 	ret = 0;
1045 	for (i = 0; i < argc; i++) {
1046 		if ((zhp = zpool_open_canfail(g_zfs, argv[i])) == NULL) {
1047 			ret = 1;
1048 			continue;
1049 		}
1050 
1051 		if (zpool_disable_datasets(zhp, force) != 0) {
1052 			ret = 1;
1053 			zpool_close(zhp);
1054 			continue;
1055 		}
1056 
1057 		/* The history must be logged as part of the export */
1058 		log_history = B_FALSE;
1059 
1060 		if (hardforce) {
1061 			if (zpool_export_force(zhp, history_str) != 0)
1062 				ret = 1;
1063 		} else if (zpool_export(zhp, force, history_str) != 0) {
1064 			ret = 1;
1065 		}
1066 
1067 		zpool_close(zhp);
1068 	}
1069 
1070 	return (ret);
1071 }
1072 
1073 /*
1074  * Given a vdev configuration, determine the maximum width needed for the device
1075  * name column.
1076  */
1077 static int
1078 max_width(zpool_handle_t *zhp, nvlist_t *nv, int depth, int max)
1079 {
1080 	char *name = zpool_vdev_name(g_zfs, zhp, nv, B_TRUE);
1081 	nvlist_t **child;
1082 	uint_t c, children;
1083 	int ret;
1084 
1085 	if (strlen(name) + depth > max)
1086 		max = strlen(name) + depth;
1087 
1088 	free(name);
1089 
1090 	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_SPARES,
1091 	    &child, &children) == 0) {
1092 		for (c = 0; c < children; c++)
1093 			if ((ret = max_width(zhp, child[c], depth + 2,
1094 			    max)) > max)
1095 				max = ret;
1096 	}
1097 
1098 	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_L2CACHE,
1099 	    &child, &children) == 0) {
1100 		for (c = 0; c < children; c++)
1101 			if ((ret = max_width(zhp, child[c], depth + 2,
1102 			    max)) > max)
1103 				max = ret;
1104 	}
1105 
1106 	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
1107 	    &child, &children) == 0) {
1108 		for (c = 0; c < children; c++)
1109 			if ((ret = max_width(zhp, child[c], depth + 2,
1110 			    max)) > max)
1111 				max = ret;
1112 	}
1113 
1114 
1115 	return (max);
1116 }
1117 
1118 typedef struct spare_cbdata {
1119 	uint64_t	cb_guid;
1120 	zpool_handle_t	*cb_zhp;
1121 } spare_cbdata_t;
1122 
1123 static boolean_t
1124 find_vdev(nvlist_t *nv, uint64_t search)
1125 {
1126 	uint64_t guid;
1127 	nvlist_t **child;
1128 	uint_t c, children;
1129 
1130 	if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_GUID, &guid) == 0 &&
1131 	    search == guid)
1132 		return (B_TRUE);
1133 
1134 	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
1135 	    &child, &children) == 0) {
1136 		for (c = 0; c < children; c++)
1137 			if (find_vdev(child[c], search))
1138 				return (B_TRUE);
1139 	}
1140 
1141 	return (B_FALSE);
1142 }
1143 
1144 static int
1145 find_spare(zpool_handle_t *zhp, void *data)
1146 {
1147 	spare_cbdata_t *cbp = data;
1148 	nvlist_t *config, *nvroot;
1149 
1150 	config = zpool_get_config(zhp, NULL);
1151 	verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
1152 	    &nvroot) == 0);
1153 
1154 	if (find_vdev(nvroot, cbp->cb_guid)) {
1155 		cbp->cb_zhp = zhp;
1156 		return (1);
1157 	}
1158 
1159 	zpool_close(zhp);
1160 	return (0);
1161 }
1162 
1163 /*
1164  * Print out configuration state as requested by status_callback.
1165  */
1166 void
1167 print_status_config(zpool_handle_t *zhp, const char *name, nvlist_t *nv,
1168     int namewidth, int depth, boolean_t isspare)
1169 {
1170 	nvlist_t **child;
1171 	uint_t c, children;
1172 	pool_scan_stat_t *ps = NULL;
1173 	vdev_stat_t *vs;
1174 	char rbuf[6], wbuf[6], cbuf[6];
1175 	char *vname;
1176 	uint64_t notpresent;
1177 	spare_cbdata_t cb;
1178 	char *state;
1179 
1180 	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
1181 	    &child, &children) != 0)
1182 		children = 0;
1183 
1184 	verify(nvlist_lookup_uint64_array(nv, ZPOOL_CONFIG_VDEV_STATS,
1185 	    (uint64_t **)&vs, &c) == 0);
1186 
1187 	state = zpool_state_to_name(vs->vs_state, vs->vs_aux);
1188 	if (isspare) {
1189 		/*
1190 		 * For hot spares, we use the terms 'INUSE' and 'AVAILABLE' for
1191 		 * online drives.
1192 		 */
1193 		if (vs->vs_aux == VDEV_AUX_SPARED)
1194 			state = "INUSE";
1195 		else if (vs->vs_state == VDEV_STATE_HEALTHY)
1196 			state = "AVAIL";
1197 	}
1198 
1199 	(void) printf("\t%*s%-*s  %-8s", depth, "", namewidth - depth,
1200 	    name, state);
1201 
1202 	if (!isspare) {
1203 		zfs_nicenum(vs->vs_read_errors, rbuf, sizeof (rbuf));
1204 		zfs_nicenum(vs->vs_write_errors, wbuf, sizeof (wbuf));
1205 		zfs_nicenum(vs->vs_checksum_errors, cbuf, sizeof (cbuf));
1206 		(void) printf(" %5s %5s %5s", rbuf, wbuf, cbuf);
1207 	}
1208 
1209 	if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_NOT_PRESENT,
1210 	    &notpresent) == 0) {
1211 		char *path;
1212 		verify(nvlist_lookup_string(nv, ZPOOL_CONFIG_PATH, &path) == 0);
1213 		(void) printf("  was %s", path);
1214 	} else if (vs->vs_aux != 0) {
1215 		(void) printf("  ");
1216 
1217 		switch (vs->vs_aux) {
1218 		case VDEV_AUX_OPEN_FAILED:
1219 			(void) printf(gettext("cannot open"));
1220 			break;
1221 
1222 		case VDEV_AUX_BAD_GUID_SUM:
1223 			(void) printf(gettext("missing device"));
1224 			break;
1225 
1226 		case VDEV_AUX_NO_REPLICAS:
1227 			(void) printf(gettext("insufficient replicas"));
1228 			break;
1229 
1230 		case VDEV_AUX_VERSION_NEWER:
1231 			(void) printf(gettext("newer version"));
1232 			break;
1233 
1234 		case VDEV_AUX_UNSUP_FEAT:
1235 			(void) printf(gettext("unsupported feature(s)"));
1236 			break;
1237 
1238 		case VDEV_AUX_SPARED:
1239 			verify(nvlist_lookup_uint64(nv, ZPOOL_CONFIG_GUID,
1240 			    &cb.cb_guid) == 0);
1241 			if (zpool_iter(g_zfs, find_spare, &cb) == 1) {
1242 				if (strcmp(zpool_get_name(cb.cb_zhp),
1243 				    zpool_get_name(zhp)) == 0)
1244 					(void) printf(gettext("currently in "
1245 					    "use"));
1246 				else
1247 					(void) printf(gettext("in use by "
1248 					    "pool '%s'"),
1249 					    zpool_get_name(cb.cb_zhp));
1250 				zpool_close(cb.cb_zhp);
1251 			} else {
1252 				(void) printf(gettext("currently in use"));
1253 			}
1254 			break;
1255 
1256 		case VDEV_AUX_ERR_EXCEEDED:
1257 			(void) printf(gettext("too many errors"));
1258 			break;
1259 
1260 		case VDEV_AUX_IO_FAILURE:
1261 			(void) printf(gettext("experienced I/O failures"));
1262 			break;
1263 
1264 		case VDEV_AUX_BAD_LOG:
1265 			(void) printf(gettext("bad intent log"));
1266 			break;
1267 
1268 		case VDEV_AUX_EXTERNAL:
1269 			(void) printf(gettext("external device fault"));
1270 			break;
1271 
1272 		case VDEV_AUX_SPLIT_POOL:
1273 			(void) printf(gettext("split into new pool"));
1274 			break;
1275 
1276 		default:
1277 			(void) printf(gettext("corrupted data"));
1278 			break;
1279 		}
1280 	}
1281 
1282 	(void) nvlist_lookup_uint64_array(nv, ZPOOL_CONFIG_SCAN_STATS,
1283 	    (uint64_t **)&ps, &c);
1284 
1285 	if (ps && ps->pss_state == DSS_SCANNING &&
1286 	    vs->vs_scan_processed != 0 && children == 0) {
1287 		(void) printf(gettext("  (%s)"),
1288 		    (ps->pss_func == POOL_SCAN_RESILVER) ?
1289 		    "resilvering" : "repairing");
1290 	}
1291 
1292 	(void) printf("\n");
1293 
1294 	for (c = 0; c < children; c++) {
1295 		uint64_t islog = B_FALSE, ishole = B_FALSE;
1296 
1297 		/* Don't print logs or holes here */
1298 		(void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_LOG,
1299 		    &islog);
1300 		(void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_HOLE,
1301 		    &ishole);
1302 		if (islog || ishole)
1303 			continue;
1304 		vname = zpool_vdev_name(g_zfs, zhp, child[c], B_TRUE);
1305 		print_status_config(zhp, vname, child[c],
1306 		    namewidth, depth + 2, isspare);
1307 		free(vname);
1308 	}
1309 }
1310 
1311 
1312 /*
1313  * Print the configuration of an exported pool.  Iterate over all vdevs in the
1314  * pool, printing out the name and status for each one.
1315  */
1316 void
1317 print_import_config(const char *name, nvlist_t *nv, int namewidth, int depth)
1318 {
1319 	nvlist_t **child;
1320 	uint_t c, children;
1321 	vdev_stat_t *vs;
1322 	char *type, *vname;
1323 
1324 	verify(nvlist_lookup_string(nv, ZPOOL_CONFIG_TYPE, &type) == 0);
1325 	if (strcmp(type, VDEV_TYPE_MISSING) == 0 ||
1326 	    strcmp(type, VDEV_TYPE_HOLE) == 0)
1327 		return;
1328 
1329 	verify(nvlist_lookup_uint64_array(nv, ZPOOL_CONFIG_VDEV_STATS,
1330 	    (uint64_t **)&vs, &c) == 0);
1331 
1332 	(void) printf("\t%*s%-*s", depth, "", namewidth - depth, name);
1333 	(void) printf("  %s", zpool_state_to_name(vs->vs_state, vs->vs_aux));
1334 
1335 	if (vs->vs_aux != 0) {
1336 		(void) printf("  ");
1337 
1338 		switch (vs->vs_aux) {
1339 		case VDEV_AUX_OPEN_FAILED:
1340 			(void) printf(gettext("cannot open"));
1341 			break;
1342 
1343 		case VDEV_AUX_BAD_GUID_SUM:
1344 			(void) printf(gettext("missing device"));
1345 			break;
1346 
1347 		case VDEV_AUX_NO_REPLICAS:
1348 			(void) printf(gettext("insufficient replicas"));
1349 			break;
1350 
1351 		case VDEV_AUX_VERSION_NEWER:
1352 			(void) printf(gettext("newer version"));
1353 			break;
1354 
1355 		case VDEV_AUX_UNSUP_FEAT:
1356 			(void) printf(gettext("unsupported feature(s)"));
1357 			break;
1358 
1359 		case VDEV_AUX_ERR_EXCEEDED:
1360 			(void) printf(gettext("too many errors"));
1361 			break;
1362 
1363 		default:
1364 			(void) printf(gettext("corrupted data"));
1365 			break;
1366 		}
1367 	}
1368 	(void) printf("\n");
1369 
1370 	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
1371 	    &child, &children) != 0)
1372 		return;
1373 
1374 	for (c = 0; c < children; c++) {
1375 		uint64_t is_log = B_FALSE;
1376 
1377 		(void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_LOG,
1378 		    &is_log);
1379 		if (is_log)
1380 			continue;
1381 
1382 		vname = zpool_vdev_name(g_zfs, NULL, child[c], B_TRUE);
1383 		print_import_config(vname, child[c], namewidth, depth + 2);
1384 		free(vname);
1385 	}
1386 
1387 	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_L2CACHE,
1388 	    &child, &children) == 0) {
1389 		(void) printf(gettext("\tcache\n"));
1390 		for (c = 0; c < children; c++) {
1391 			vname = zpool_vdev_name(g_zfs, NULL, child[c], B_FALSE);
1392 			(void) printf("\t  %s\n", vname);
1393 			free(vname);
1394 		}
1395 	}
1396 
1397 	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_SPARES,
1398 	    &child, &children) == 0) {
1399 		(void) printf(gettext("\tspares\n"));
1400 		for (c = 0; c < children; c++) {
1401 			vname = zpool_vdev_name(g_zfs, NULL, child[c], B_FALSE);
1402 			(void) printf("\t  %s\n", vname);
1403 			free(vname);
1404 		}
1405 	}
1406 }
1407 
1408 /*
1409  * Print log vdevs.
1410  * Logs are recorded as top level vdevs in the main pool child array
1411  * but with "is_log" set to 1. We use either print_status_config() or
1412  * print_import_config() to print the top level logs then any log
1413  * children (eg mirrored slogs) are printed recursively - which
1414  * works because only the top level vdev is marked "is_log"
1415  */
1416 static void
1417 print_logs(zpool_handle_t *zhp, nvlist_t *nv, int namewidth, boolean_t verbose)
1418 {
1419 	uint_t c, children;
1420 	nvlist_t **child;
1421 
1422 	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN, &child,
1423 	    &children) != 0)
1424 		return;
1425 
1426 	(void) printf(gettext("\tlogs\n"));
1427 
1428 	for (c = 0; c < children; c++) {
1429 		uint64_t is_log = B_FALSE;
1430 		char *name;
1431 
1432 		(void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_LOG,
1433 		    &is_log);
1434 		if (!is_log)
1435 			continue;
1436 		name = zpool_vdev_name(g_zfs, zhp, child[c], B_TRUE);
1437 		if (verbose)
1438 			print_status_config(zhp, name, child[c], namewidth,
1439 			    2, B_FALSE);
1440 		else
1441 			print_import_config(name, child[c], namewidth, 2);
1442 		free(name);
1443 	}
1444 }
1445 
1446 /*
1447  * Display the status for the given pool.
1448  */
1449 static void
1450 show_import(nvlist_t *config)
1451 {
1452 	uint64_t pool_state;
1453 	vdev_stat_t *vs;
1454 	char *name;
1455 	uint64_t guid;
1456 	char *msgid;
1457 	nvlist_t *nvroot;
1458 	int reason;
1459 	const char *health;
1460 	uint_t vsc;
1461 	int namewidth;
1462 	char *comment;
1463 
1464 	verify(nvlist_lookup_string(config, ZPOOL_CONFIG_POOL_NAME,
1465 	    &name) == 0);
1466 	verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID,
1467 	    &guid) == 0);
1468 	verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_STATE,
1469 	    &pool_state) == 0);
1470 	verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
1471 	    &nvroot) == 0);
1472 
1473 	verify(nvlist_lookup_uint64_array(nvroot, ZPOOL_CONFIG_VDEV_STATS,
1474 	    (uint64_t **)&vs, &vsc) == 0);
1475 	health = zpool_state_to_name(vs->vs_state, vs->vs_aux);
1476 
1477 	reason = zpool_import_status(config, &msgid);
1478 
1479 	(void) printf(gettext("   pool: %s\n"), name);
1480 	(void) printf(gettext("     id: %llu\n"), (u_longlong_t)guid);
1481 	(void) printf(gettext("  state: %s"), health);
1482 	if (pool_state == POOL_STATE_DESTROYED)
1483 		(void) printf(gettext(" (DESTROYED)"));
1484 	(void) printf("\n");
1485 
1486 	switch (reason) {
1487 	case ZPOOL_STATUS_MISSING_DEV_R:
1488 	case ZPOOL_STATUS_MISSING_DEV_NR:
1489 	case ZPOOL_STATUS_BAD_GUID_SUM:
1490 		(void) printf(gettext(" status: One or more devices are "
1491 		    "missing from the system.\n"));
1492 		break;
1493 
1494 	case ZPOOL_STATUS_CORRUPT_LABEL_R:
1495 	case ZPOOL_STATUS_CORRUPT_LABEL_NR:
1496 		(void) printf(gettext(" status: One or more devices contains "
1497 		    "corrupted data.\n"));
1498 		break;
1499 
1500 	case ZPOOL_STATUS_CORRUPT_DATA:
1501 		(void) printf(
1502 		    gettext(" status: The pool data is corrupted.\n"));
1503 		break;
1504 
1505 	case ZPOOL_STATUS_OFFLINE_DEV:
1506 		(void) printf(gettext(" status: One or more devices "
1507 		    "are offlined.\n"));
1508 		break;
1509 
1510 	case ZPOOL_STATUS_CORRUPT_POOL:
1511 		(void) printf(gettext(" status: The pool metadata is "
1512 		    "corrupted.\n"));
1513 		break;
1514 
1515 	case ZPOOL_STATUS_VERSION_OLDER:
1516 		(void) printf(gettext(" status: The pool is formatted using a "
1517 		    "legacy on-disk version.\n"));
1518 		break;
1519 
1520 	case ZPOOL_STATUS_VERSION_NEWER:
1521 		(void) printf(gettext(" status: The pool is formatted using an "
1522 		    "incompatible version.\n"));
1523 		break;
1524 
1525 	case ZPOOL_STATUS_FEAT_DISABLED:
1526 		(void) printf(gettext(" status: Some supported features are "
1527 		    "not enabled on the pool.\n"));
1528 		break;
1529 
1530 	case ZPOOL_STATUS_UNSUP_FEAT_READ:
1531 		(void) printf(gettext("status: The pool uses the following "
1532 		    "feature(s) not supported on this sytem:\n"));
1533 		zpool_print_unsup_feat(config);
1534 		break;
1535 
1536 	case ZPOOL_STATUS_UNSUP_FEAT_WRITE:
1537 		(void) printf(gettext("status: The pool can only be accessed "
1538 		    "in read-only mode on this system. It\n\tcannot be "
1539 		    "accessed in read-write mode because it uses the "
1540 		    "following\n\tfeature(s) not supported on this system:\n"));
1541 		zpool_print_unsup_feat(config);
1542 		break;
1543 
1544 	case ZPOOL_STATUS_HOSTID_MISMATCH:
1545 		(void) printf(gettext(" status: The pool was last accessed by "
1546 		    "another system.\n"));
1547 		break;
1548 
1549 	case ZPOOL_STATUS_FAULTED_DEV_R:
1550 	case ZPOOL_STATUS_FAULTED_DEV_NR:
1551 		(void) printf(gettext(" status: One or more devices are "
1552 		    "faulted.\n"));
1553 		break;
1554 
1555 	case ZPOOL_STATUS_BAD_LOG:
1556 		(void) printf(gettext(" status: An intent log record cannot be "
1557 		    "read.\n"));
1558 		break;
1559 
1560 	case ZPOOL_STATUS_RESILVERING:
1561 		(void) printf(gettext(" status: One or more devices were being "
1562 		    "resilvered.\n"));
1563 		break;
1564 
1565 	default:
1566 		/*
1567 		 * No other status can be seen when importing pools.
1568 		 */
1569 		assert(reason == ZPOOL_STATUS_OK);
1570 	}
1571 
1572 	/*
1573 	 * Print out an action according to the overall state of the pool.
1574 	 */
1575 	if (vs->vs_state == VDEV_STATE_HEALTHY) {
1576 		if (reason == ZPOOL_STATUS_VERSION_OLDER ||
1577 		    reason == ZPOOL_STATUS_FEAT_DISABLED) {
1578 			(void) printf(gettext(" action: The pool can be "
1579 			    "imported using its name or numeric identifier, "
1580 			    "though\n\tsome features will not be available "
1581 			    "without an explicit 'zpool upgrade'.\n"));
1582 		} else if (reason == ZPOOL_STATUS_HOSTID_MISMATCH) {
1583 			(void) printf(gettext(" action: The pool can be "
1584 			    "imported using its name or numeric "
1585 			    "identifier and\n\tthe '-f' flag.\n"));
1586 		} else {
1587 			(void) printf(gettext(" action: The pool can be "
1588 			    "imported using its name or numeric "
1589 			    "identifier.\n"));
1590 		}
1591 	} else if (vs->vs_state == VDEV_STATE_DEGRADED) {
1592 		(void) printf(gettext(" action: The pool can be imported "
1593 		    "despite missing or damaged devices.  The\n\tfault "
1594 		    "tolerance of the pool may be compromised if imported.\n"));
1595 	} else {
1596 		switch (reason) {
1597 		case ZPOOL_STATUS_VERSION_NEWER:
1598 			(void) printf(gettext(" action: The pool cannot be "
1599 			    "imported.  Access the pool on a system running "
1600 			    "newer\n\tsoftware, or recreate the pool from "
1601 			    "backup.\n"));
1602 			break;
1603 		case ZPOOL_STATUS_UNSUP_FEAT_READ:
1604 			(void) printf(gettext("action: The pool cannot be "
1605 			    "imported. Access the pool on a system that "
1606 			    "supports\n\tthe required feature(s), or recreate "
1607 			    "the pool from backup.\n"));
1608 			break;
1609 		case ZPOOL_STATUS_UNSUP_FEAT_WRITE:
1610 			(void) printf(gettext("action: The pool cannot be "
1611 			    "imported in read-write mode. Import the pool "
1612 			    "with\n"
1613 			    "\t\"-o readonly=on\", access the pool on a system "
1614 			    "that supports the\n\trequired feature(s), or "
1615 			    "recreate the pool from backup.\n"));
1616 			break;
1617 		case ZPOOL_STATUS_MISSING_DEV_R:
1618 		case ZPOOL_STATUS_MISSING_DEV_NR:
1619 		case ZPOOL_STATUS_BAD_GUID_SUM:
1620 			(void) printf(gettext(" action: The pool cannot be "
1621 			    "imported. Attach the missing\n\tdevices and try "
1622 			    "again.\n"));
1623 			break;
1624 		default:
1625 			(void) printf(gettext(" action: The pool cannot be "
1626 			    "imported due to damaged devices or data.\n"));
1627 		}
1628 	}
1629 
1630 	/* Print the comment attached to the pool. */
1631 	if (nvlist_lookup_string(config, ZPOOL_CONFIG_COMMENT, &comment) == 0)
1632 		(void) printf(gettext("comment: %s\n"), comment);
1633 
1634 	/*
1635 	 * If the state is "closed" or "can't open", and the aux state
1636 	 * is "corrupt data":
1637 	 */
1638 	if (((vs->vs_state == VDEV_STATE_CLOSED) ||
1639 	    (vs->vs_state == VDEV_STATE_CANT_OPEN)) &&
1640 	    (vs->vs_aux == VDEV_AUX_CORRUPT_DATA)) {
1641 		if (pool_state == POOL_STATE_DESTROYED)
1642 			(void) printf(gettext("\tThe pool was destroyed, "
1643 			    "but can be imported using the '-Df' flags.\n"));
1644 		else if (pool_state != POOL_STATE_EXPORTED)
1645 			(void) printf(gettext("\tThe pool may be active on "
1646 			    "another system, but can be imported using\n\t"
1647 			    "the '-f' flag.\n"));
1648 	}
1649 
1650 	if (msgid != NULL)
1651 		(void) printf(gettext("   see: http://illumos.org/msg/%s\n"),
1652 		    msgid);
1653 
1654 	(void) printf(gettext(" config:\n\n"));
1655 
1656 	namewidth = max_width(NULL, nvroot, 0, 0);
1657 	if (namewidth < 10)
1658 		namewidth = 10;
1659 
1660 	print_import_config(name, nvroot, namewidth, 0);
1661 	if (num_logs(nvroot) > 0)
1662 		print_logs(NULL, nvroot, namewidth, B_FALSE);
1663 
1664 	if (reason == ZPOOL_STATUS_BAD_GUID_SUM) {
1665 		(void) printf(gettext("\n\tAdditional devices are known to "
1666 		    "be part of this pool, though their\n\texact "
1667 		    "configuration cannot be determined.\n"));
1668 	}
1669 }
1670 
1671 /*
1672  * Perform the import for the given configuration.  This passes the heavy
1673  * lifting off to zpool_import_props(), and then mounts the datasets contained
1674  * within the pool.
1675  */
1676 static int
1677 do_import(nvlist_t *config, const char *newname, const char *mntopts,
1678     nvlist_t *props, int flags)
1679 {
1680 	zpool_handle_t *zhp;
1681 	char *name;
1682 	uint64_t state;
1683 	uint64_t version;
1684 
1685 	verify(nvlist_lookup_string(config, ZPOOL_CONFIG_POOL_NAME,
1686 	    &name) == 0);
1687 
1688 	verify(nvlist_lookup_uint64(config,
1689 	    ZPOOL_CONFIG_POOL_STATE, &state) == 0);
1690 	verify(nvlist_lookup_uint64(config,
1691 	    ZPOOL_CONFIG_VERSION, &version) == 0);
1692 	if (!SPA_VERSION_IS_SUPPORTED(version)) {
1693 		(void) fprintf(stderr, gettext("cannot import '%s': pool "
1694 		    "is formatted using an unsupported ZFS version\n"), name);
1695 		return (1);
1696 	} else if (state != POOL_STATE_EXPORTED &&
1697 	    !(flags & ZFS_IMPORT_ANY_HOST)) {
1698 		uint64_t hostid;
1699 
1700 		if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_HOSTID,
1701 		    &hostid) == 0) {
1702 			if ((unsigned long)hostid != gethostid()) {
1703 				char *hostname;
1704 				uint64_t timestamp;
1705 				time_t t;
1706 
1707 				verify(nvlist_lookup_string(config,
1708 				    ZPOOL_CONFIG_HOSTNAME, &hostname) == 0);
1709 				verify(nvlist_lookup_uint64(config,
1710 				    ZPOOL_CONFIG_TIMESTAMP, &timestamp) == 0);
1711 				t = timestamp;
1712 				(void) fprintf(stderr, gettext("cannot import "
1713 				    "'%s': pool may be in use from other "
1714 				    "system, it was last accessed by %s "
1715 				    "(hostid: 0x%lx) on %s"), name, hostname,
1716 				    (unsigned long)hostid,
1717 				    asctime(localtime(&t)));
1718 				(void) fprintf(stderr, gettext("use '-f' to "
1719 				    "import anyway\n"));
1720 				return (1);
1721 			}
1722 		} else {
1723 			(void) fprintf(stderr, gettext("cannot import '%s': "
1724 			    "pool may be in use from other system\n"), name);
1725 			(void) fprintf(stderr, gettext("use '-f' to import "
1726 			    "anyway\n"));
1727 			return (1);
1728 		}
1729 	}
1730 
1731 	if (zpool_import_props(g_zfs, config, newname, props, flags) != 0)
1732 		return (1);
1733 
1734 	if (newname != NULL)
1735 		name = (char *)newname;
1736 
1737 	if ((zhp = zpool_open_canfail(g_zfs, name)) == NULL)
1738 		return (1);
1739 
1740 	if (zpool_get_state(zhp) != POOL_STATE_UNAVAIL &&
1741 	    !(flags & ZFS_IMPORT_ONLY) &&
1742 	    zpool_enable_datasets(zhp, mntopts, 0) != 0) {
1743 		zpool_close(zhp);
1744 		return (1);
1745 	}
1746 
1747 	zpool_close(zhp);
1748 	return (0);
1749 }
1750 
1751 /*
1752  * zpool import [-d dir] [-D]
1753  *       import [-o mntopts] [-o prop=value] ... [-R root] [-D]
1754  *              [-d dir | -c cachefile] [-f] -a
1755  *       import [-o mntopts] [-o prop=value] ... [-R root] [-D]
1756  *              [-d dir | -c cachefile] [-f] [-n] [-F] <pool | id> [newpool]
1757  *
1758  *	 -c	Read pool information from a cachefile instead of searching
1759  *		devices.
1760  *
1761  *       -d	Scan in a specific directory, other than /dev/dsk.  More than
1762  *		one directory can be specified using multiple '-d' options.
1763  *
1764  *       -D     Scan for previously destroyed pools or import all or only
1765  *              specified destroyed pools.
1766  *
1767  *       -R	Temporarily import the pool, with all mountpoints relative to
1768  *		the given root.  The pool will remain exported when the machine
1769  *		is rebooted.
1770  *
1771  *       -V	Import even in the presence of faulted vdevs.  This is an
1772  *       	intentionally undocumented option for testing purposes, and
1773  *       	treats the pool configuration as complete, leaving any bad
1774  *		vdevs in the FAULTED state. In other words, it does verbatim
1775  *		import.
1776  *
1777  *       -f	Force import, even if it appears that the pool is active.
1778  *
1779  *       -F     Attempt rewind if necessary.
1780  *
1781  *       -n     See if rewind would work, but don't actually rewind.
1782  *
1783  *       -N     Import the pool but don't mount datasets.
1784  *
1785  *       -T     Specify a starting txg to use for import. This option is
1786  *       	intentionally undocumented option for testing purposes.
1787  *
1788  *       -a	Import all pools found.
1789  *
1790  *       -o	Set property=value and/or temporary mount options (without '=').
1791  *
1792  * The import command scans for pools to import, and import pools based on pool
1793  * name and GUID.  The pool can also be renamed as part of the import process.
1794  */
1795 int
1796 zpool_do_import(int argc, char **argv)
1797 {
1798 	char **searchdirs = NULL;
1799 	int nsearch = 0;
1800 	int c;
1801 	int err = 0;
1802 	nvlist_t *pools = NULL;
1803 	boolean_t do_all = B_FALSE;
1804 	boolean_t do_destroyed = B_FALSE;
1805 	char *mntopts = NULL;
1806 	nvpair_t *elem;
1807 	nvlist_t *config;
1808 	uint64_t searchguid = 0;
1809 	char *searchname = NULL;
1810 	char *propval;
1811 	nvlist_t *found_config;
1812 	nvlist_t *policy = NULL;
1813 	nvlist_t *props = NULL;
1814 	boolean_t first;
1815 	int flags = ZFS_IMPORT_NORMAL;
1816 	uint32_t rewind_policy = ZPOOL_NO_REWIND;
1817 	boolean_t dryrun = B_FALSE;
1818 	boolean_t do_rewind = B_FALSE;
1819 	boolean_t xtreme_rewind = B_FALSE;
1820 	uint64_t pool_state, txg = -1ULL;
1821 	char *cachefile = NULL;
1822 	importargs_t idata = { 0 };
1823 	char *endptr;
1824 
1825 	/* check options */
1826 	while ((c = getopt(argc, argv, ":aCc:d:DEfFmnNo:rR:T:VX")) != -1) {
1827 		switch (c) {
1828 		case 'a':
1829 			do_all = B_TRUE;
1830 			break;
1831 		case 'c':
1832 			cachefile = optarg;
1833 			break;
1834 		case 'd':
1835 			if (searchdirs == NULL) {
1836 				searchdirs = safe_malloc(sizeof (char *));
1837 			} else {
1838 				char **tmp = safe_malloc((nsearch + 1) *
1839 				    sizeof (char *));
1840 				bcopy(searchdirs, tmp, nsearch *
1841 				    sizeof (char *));
1842 				free(searchdirs);
1843 				searchdirs = tmp;
1844 			}
1845 			searchdirs[nsearch++] = optarg;
1846 			break;
1847 		case 'D':
1848 			do_destroyed = B_TRUE;
1849 			break;
1850 		case 'f':
1851 			flags |= ZFS_IMPORT_ANY_HOST;
1852 			break;
1853 		case 'F':
1854 			do_rewind = B_TRUE;
1855 			break;
1856 		case 'm':
1857 			flags |= ZFS_IMPORT_MISSING_LOG;
1858 			break;
1859 		case 'n':
1860 			dryrun = B_TRUE;
1861 			break;
1862 		case 'N':
1863 			flags |= ZFS_IMPORT_ONLY;
1864 			break;
1865 		case 'o':
1866 			if ((propval = strchr(optarg, '=')) != NULL) {
1867 				*propval = '\0';
1868 				propval++;
1869 				if (add_prop_list(optarg, propval,
1870 				    &props, B_TRUE))
1871 					goto error;
1872 			} else {
1873 				mntopts = optarg;
1874 			}
1875 			break;
1876 		case 'R':
1877 			if (add_prop_list(zpool_prop_to_name(
1878 			    ZPOOL_PROP_ALTROOT), optarg, &props, B_TRUE))
1879 				goto error;
1880 			if (nvlist_lookup_string(props,
1881 			    zpool_prop_to_name(ZPOOL_PROP_CACHEFILE),
1882 			    &propval) == 0)
1883 				break;
1884 			if (add_prop_list(zpool_prop_to_name(
1885 			    ZPOOL_PROP_CACHEFILE), "none", &props, B_TRUE))
1886 				goto error;
1887 			break;
1888 		case 'T':
1889 			errno = 0;
1890 			txg = strtoull(optarg, &endptr, 0);
1891 			if (errno != 0 || *endptr != '\0') {
1892 				(void) fprintf(stderr,
1893 				    gettext("invalid txg value\n"));
1894 				usage(B_FALSE);
1895 			}
1896 			rewind_policy = ZPOOL_DO_REWIND | ZPOOL_EXTREME_REWIND;
1897 			break;
1898 		case 'V':
1899 			flags |= ZFS_IMPORT_VERBATIM;
1900 			break;
1901 		case 'X':
1902 			xtreme_rewind = B_TRUE;
1903 			break;
1904 		case ':':
1905 			(void) fprintf(stderr, gettext("missing argument for "
1906 			    "'%c' option\n"), optopt);
1907 			usage(B_FALSE);
1908 			break;
1909 		case '?':
1910 			(void) fprintf(stderr, gettext("invalid option '%c'\n"),
1911 			    optopt);
1912 			usage(B_FALSE);
1913 		}
1914 	}
1915 
1916 	argc -= optind;
1917 	argv += optind;
1918 
1919 	if (cachefile && nsearch != 0) {
1920 		(void) fprintf(stderr, gettext("-c is incompatible with -d\n"));
1921 		usage(B_FALSE);
1922 	}
1923 
1924 	if ((dryrun || xtreme_rewind) && !do_rewind) {
1925 		(void) fprintf(stderr,
1926 		    gettext("-n or -X only meaningful with -F\n"));
1927 		usage(B_FALSE);
1928 	}
1929 	if (dryrun)
1930 		rewind_policy = ZPOOL_TRY_REWIND;
1931 	else if (do_rewind)
1932 		rewind_policy = ZPOOL_DO_REWIND;
1933 	if (xtreme_rewind)
1934 		rewind_policy |= ZPOOL_EXTREME_REWIND;
1935 
1936 	/* In the future, we can capture further policy and include it here */
1937 	if (nvlist_alloc(&policy, NV_UNIQUE_NAME, 0) != 0 ||
1938 	    nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, txg) != 0 ||
1939 	    nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind_policy) != 0)
1940 		goto error;
1941 
1942 	if (searchdirs == NULL) {
1943 		searchdirs = safe_malloc(sizeof (char *));
1944 		searchdirs[0] = "/dev/dsk";
1945 		nsearch = 1;
1946 	}
1947 
1948 	/* check argument count */
1949 	if (do_all) {
1950 		if (argc != 0) {
1951 			(void) fprintf(stderr, gettext("too many arguments\n"));
1952 			usage(B_FALSE);
1953 		}
1954 	} else {
1955 		if (argc > 2) {
1956 			(void) fprintf(stderr, gettext("too many arguments\n"));
1957 			usage(B_FALSE);
1958 		}
1959 
1960 		/*
1961 		 * Check for the SYS_CONFIG privilege.  We do this explicitly
1962 		 * here because otherwise any attempt to discover pools will
1963 		 * silently fail.
1964 		 */
1965 		if (argc == 0 && !priv_ineffect(PRIV_SYS_CONFIG)) {
1966 			(void) fprintf(stderr, gettext("cannot "
1967 			    "discover pools: permission denied\n"));
1968 			free(searchdirs);
1969 			nvlist_free(policy);
1970 			return (1);
1971 		}
1972 	}
1973 
1974 	/*
1975 	 * Depending on the arguments given, we do one of the following:
1976 	 *
1977 	 *	<none>	Iterate through all pools and display information about
1978 	 *		each one.
1979 	 *
1980 	 *	-a	Iterate through all pools and try to import each one.
1981 	 *
1982 	 *	<id>	Find the pool that corresponds to the given GUID/pool
1983 	 *		name and import that one.
1984 	 *
1985 	 *	-D	Above options applies only to destroyed pools.
1986 	 */
1987 	if (argc != 0) {
1988 		char *endptr;
1989 
1990 		errno = 0;
1991 		searchguid = strtoull(argv[0], &endptr, 10);
1992 		if (errno != 0 || *endptr != '\0') {
1993 			searchname = argv[0];
1994 			searchguid = 0;
1995 		}
1996 		found_config = NULL;
1997 
1998 		/*
1999 		 * User specified a name or guid.  Ensure it's unique.
2000 		 */
2001 		idata.unique = B_TRUE;
2002 	}
2003 
2004 
2005 	idata.path = searchdirs;
2006 	idata.paths = nsearch;
2007 	idata.poolname = searchname;
2008 	idata.guid = searchguid;
2009 	idata.cachefile = cachefile;
2010 
2011 	pools = zpool_search_import(g_zfs, &idata);
2012 
2013 	if (pools != NULL && idata.exists &&
2014 	    (argc == 1 || strcmp(argv[0], argv[1]) == 0)) {
2015 		(void) fprintf(stderr, gettext("cannot import '%s': "
2016 		    "a pool with that name already exists\n"),
2017 		    argv[0]);
2018 		(void) fprintf(stderr, gettext("use the form '%s "
2019 		    "<pool | id> <newpool>' to give it a new name\n"),
2020 		    "zpool import");
2021 		err = 1;
2022 	} else if (pools == NULL && idata.exists) {
2023 		(void) fprintf(stderr, gettext("cannot import '%s': "
2024 		    "a pool with that name is already created/imported,\n"),
2025 		    argv[0]);
2026 		(void) fprintf(stderr, gettext("and no additional pools "
2027 		    "with that name were found\n"));
2028 		err = 1;
2029 	} else if (pools == NULL) {
2030 		if (argc != 0) {
2031 			(void) fprintf(stderr, gettext("cannot import '%s': "
2032 			    "no such pool available\n"), argv[0]);
2033 		}
2034 		err = 1;
2035 	}
2036 
2037 	if (err == 1) {
2038 		free(searchdirs);
2039 		nvlist_free(policy);
2040 		return (1);
2041 	}
2042 
2043 	/*
2044 	 * At this point we have a list of import candidate configs. Even if
2045 	 * we were searching by pool name or guid, we still need to
2046 	 * post-process the list to deal with pool state and possible
2047 	 * duplicate names.
2048 	 */
2049 	err = 0;
2050 	elem = NULL;
2051 	first = B_TRUE;
2052 	while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) {
2053 
2054 		verify(nvpair_value_nvlist(elem, &config) == 0);
2055 
2056 		verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_STATE,
2057 		    &pool_state) == 0);
2058 		if (!do_destroyed && pool_state == POOL_STATE_DESTROYED)
2059 			continue;
2060 		if (do_destroyed && pool_state != POOL_STATE_DESTROYED)
2061 			continue;
2062 
2063 		verify(nvlist_add_nvlist(config, ZPOOL_REWIND_POLICY,
2064 		    policy) == 0);
2065 
2066 		if (argc == 0) {
2067 			if (first)
2068 				first = B_FALSE;
2069 			else if (!do_all)
2070 				(void) printf("\n");
2071 
2072 			if (do_all) {
2073 				err |= do_import(config, NULL, mntopts,
2074 				    props, flags);
2075 			} else {
2076 				show_import(config);
2077 			}
2078 		} else if (searchname != NULL) {
2079 			char *name;
2080 
2081 			/*
2082 			 * We are searching for a pool based on name.
2083 			 */
2084 			verify(nvlist_lookup_string(config,
2085 			    ZPOOL_CONFIG_POOL_NAME, &name) == 0);
2086 
2087 			if (strcmp(name, searchname) == 0) {
2088 				if (found_config != NULL) {
2089 					(void) fprintf(stderr, gettext(
2090 					    "cannot import '%s': more than "
2091 					    "one matching pool\n"), searchname);
2092 					(void) fprintf(stderr, gettext(
2093 					    "import by numeric ID instead\n"));
2094 					err = B_TRUE;
2095 				}
2096 				found_config = config;
2097 			}
2098 		} else {
2099 			uint64_t guid;
2100 
2101 			/*
2102 			 * Search for a pool by guid.
2103 			 */
2104 			verify(nvlist_lookup_uint64(config,
2105 			    ZPOOL_CONFIG_POOL_GUID, &guid) == 0);
2106 
2107 			if (guid == searchguid)
2108 				found_config = config;
2109 		}
2110 	}
2111 
2112 	/*
2113 	 * If we were searching for a specific pool, verify that we found a
2114 	 * pool, and then do the import.
2115 	 */
2116 	if (argc != 0 && err == 0) {
2117 		if (found_config == NULL) {
2118 			(void) fprintf(stderr, gettext("cannot import '%s': "
2119 			    "no such pool available\n"), argv[0]);
2120 			err = B_TRUE;
2121 		} else {
2122 			err |= do_import(found_config, argc == 1 ? NULL :
2123 			    argv[1], mntopts, props, flags);
2124 		}
2125 	}
2126 
2127 	/*
2128 	 * If we were just looking for pools, report an error if none were
2129 	 * found.
2130 	 */
2131 	if (argc == 0 && first)
2132 		(void) fprintf(stderr,
2133 		    gettext("no pools available to import\n"));
2134 
2135 error:
2136 	nvlist_free(props);
2137 	nvlist_free(pools);
2138 	nvlist_free(policy);
2139 	free(searchdirs);
2140 
2141 	return (err ? 1 : 0);
2142 }
2143 
2144 typedef struct iostat_cbdata {
2145 	boolean_t cb_verbose;
2146 	int cb_namewidth;
2147 	int cb_iteration;
2148 	zpool_list_t *cb_list;
2149 } iostat_cbdata_t;
2150 
2151 static void
2152 print_iostat_separator(iostat_cbdata_t *cb)
2153 {
2154 	int i = 0;
2155 
2156 	for (i = 0; i < cb->cb_namewidth; i++)
2157 		(void) printf("-");
2158 	(void) printf("  -----  -----  -----  -----  -----  -----\n");
2159 }
2160 
2161 static void
2162 print_iostat_header(iostat_cbdata_t *cb)
2163 {
2164 	(void) printf("%*s     capacity     operations    bandwidth\n",
2165 	    cb->cb_namewidth, "");
2166 	(void) printf("%-*s  alloc   free   read  write   read  write\n",
2167 	    cb->cb_namewidth, "pool");
2168 	print_iostat_separator(cb);
2169 }
2170 
2171 /*
2172  * Display a single statistic.
2173  */
2174 static void
2175 print_one_stat(uint64_t value)
2176 {
2177 	char buf[64];
2178 
2179 	zfs_nicenum(value, buf, sizeof (buf));
2180 	(void) printf("  %5s", buf);
2181 }
2182 
2183 /*
2184  * Print out all the statistics for the given vdev.  This can either be the
2185  * toplevel configuration, or called recursively.  If 'name' is NULL, then this
2186  * is a verbose output, and we don't want to display the toplevel pool stats.
2187  */
2188 void
2189 print_vdev_stats(zpool_handle_t *zhp, const char *name, nvlist_t *oldnv,
2190     nvlist_t *newnv, iostat_cbdata_t *cb, int depth)
2191 {
2192 	nvlist_t **oldchild, **newchild;
2193 	uint_t c, children;
2194 	vdev_stat_t *oldvs, *newvs;
2195 	vdev_stat_t zerovs = { 0 };
2196 	uint64_t tdelta;
2197 	double scale;
2198 	char *vname;
2199 
2200 	if (oldnv != NULL) {
2201 		verify(nvlist_lookup_uint64_array(oldnv,
2202 		    ZPOOL_CONFIG_VDEV_STATS, (uint64_t **)&oldvs, &c) == 0);
2203 	} else {
2204 		oldvs = &zerovs;
2205 	}
2206 
2207 	verify(nvlist_lookup_uint64_array(newnv, ZPOOL_CONFIG_VDEV_STATS,
2208 	    (uint64_t **)&newvs, &c) == 0);
2209 
2210 	if (strlen(name) + depth > cb->cb_namewidth)
2211 		(void) printf("%*s%s", depth, "", name);
2212 	else
2213 		(void) printf("%*s%s%*s", depth, "", name,
2214 		    (int)(cb->cb_namewidth - strlen(name) - depth), "");
2215 
2216 	tdelta = newvs->vs_timestamp - oldvs->vs_timestamp;
2217 
2218 	if (tdelta == 0)
2219 		scale = 1.0;
2220 	else
2221 		scale = (double)NANOSEC / tdelta;
2222 
2223 	/* only toplevel vdevs have capacity stats */
2224 	if (newvs->vs_space == 0) {
2225 		(void) printf("      -      -");
2226 	} else {
2227 		print_one_stat(newvs->vs_alloc);
2228 		print_one_stat(newvs->vs_space - newvs->vs_alloc);
2229 	}
2230 
2231 	print_one_stat((uint64_t)(scale * (newvs->vs_ops[ZIO_TYPE_READ] -
2232 	    oldvs->vs_ops[ZIO_TYPE_READ])));
2233 
2234 	print_one_stat((uint64_t)(scale * (newvs->vs_ops[ZIO_TYPE_WRITE] -
2235 	    oldvs->vs_ops[ZIO_TYPE_WRITE])));
2236 
2237 	print_one_stat((uint64_t)(scale * (newvs->vs_bytes[ZIO_TYPE_READ] -
2238 	    oldvs->vs_bytes[ZIO_TYPE_READ])));
2239 
2240 	print_one_stat((uint64_t)(scale * (newvs->vs_bytes[ZIO_TYPE_WRITE] -
2241 	    oldvs->vs_bytes[ZIO_TYPE_WRITE])));
2242 
2243 	(void) printf("\n");
2244 
2245 	if (!cb->cb_verbose)
2246 		return;
2247 
2248 	if (nvlist_lookup_nvlist_array(newnv, ZPOOL_CONFIG_CHILDREN,
2249 	    &newchild, &children) != 0)
2250 		return;
2251 
2252 	if (oldnv && nvlist_lookup_nvlist_array(oldnv, ZPOOL_CONFIG_CHILDREN,
2253 	    &oldchild, &c) != 0)
2254 		return;
2255 
2256 	for (c = 0; c < children; c++) {
2257 		uint64_t ishole = B_FALSE, islog = B_FALSE;
2258 
2259 		(void) nvlist_lookup_uint64(newchild[c], ZPOOL_CONFIG_IS_HOLE,
2260 		    &ishole);
2261 
2262 		(void) nvlist_lookup_uint64(newchild[c], ZPOOL_CONFIG_IS_LOG,
2263 		    &islog);
2264 
2265 		if (ishole || islog)
2266 			continue;
2267 
2268 		vname = zpool_vdev_name(g_zfs, zhp, newchild[c], B_FALSE);
2269 		print_vdev_stats(zhp, vname, oldnv ? oldchild[c] : NULL,
2270 		    newchild[c], cb, depth + 2);
2271 		free(vname);
2272 	}
2273 
2274 	/*
2275 	 * Log device section
2276 	 */
2277 
2278 	if (num_logs(newnv) > 0) {
2279 		(void) printf("%-*s      -      -      -      -      -      "
2280 		    "-\n", cb->cb_namewidth, "logs");
2281 
2282 		for (c = 0; c < children; c++) {
2283 			uint64_t islog = B_FALSE;
2284 			(void) nvlist_lookup_uint64(newchild[c],
2285 			    ZPOOL_CONFIG_IS_LOG, &islog);
2286 
2287 			if (islog) {
2288 				vname = zpool_vdev_name(g_zfs, zhp, newchild[c],
2289 				    B_FALSE);
2290 				print_vdev_stats(zhp, vname, oldnv ?
2291 				    oldchild[c] : NULL, newchild[c],
2292 				    cb, depth + 2);
2293 				free(vname);
2294 			}
2295 		}
2296 
2297 	}
2298 
2299 	/*
2300 	 * Include level 2 ARC devices in iostat output
2301 	 */
2302 	if (nvlist_lookup_nvlist_array(newnv, ZPOOL_CONFIG_L2CACHE,
2303 	    &newchild, &children) != 0)
2304 		return;
2305 
2306 	if (oldnv && nvlist_lookup_nvlist_array(oldnv, ZPOOL_CONFIG_L2CACHE,
2307 	    &oldchild, &c) != 0)
2308 		return;
2309 
2310 	if (children > 0) {
2311 		(void) printf("%-*s      -      -      -      -      -      "
2312 		    "-\n", cb->cb_namewidth, "cache");
2313 		for (c = 0; c < children; c++) {
2314 			vname = zpool_vdev_name(g_zfs, zhp, newchild[c],
2315 			    B_FALSE);
2316 			print_vdev_stats(zhp, vname, oldnv ? oldchild[c] : NULL,
2317 			    newchild[c], cb, depth + 2);
2318 			free(vname);
2319 		}
2320 	}
2321 }
2322 
2323 static int
2324 refresh_iostat(zpool_handle_t *zhp, void *data)
2325 {
2326 	iostat_cbdata_t *cb = data;
2327 	boolean_t missing;
2328 
2329 	/*
2330 	 * If the pool has disappeared, remove it from the list and continue.
2331 	 */
2332 	if (zpool_refresh_stats(zhp, &missing) != 0)
2333 		return (-1);
2334 
2335 	if (missing)
2336 		pool_list_remove(cb->cb_list, zhp);
2337 
2338 	return (0);
2339 }
2340 
2341 /*
2342  * Callback to print out the iostats for the given pool.
2343  */
2344 int
2345 print_iostat(zpool_handle_t *zhp, void *data)
2346 {
2347 	iostat_cbdata_t *cb = data;
2348 	nvlist_t *oldconfig, *newconfig;
2349 	nvlist_t *oldnvroot, *newnvroot;
2350 
2351 	newconfig = zpool_get_config(zhp, &oldconfig);
2352 
2353 	if (cb->cb_iteration == 1)
2354 		oldconfig = NULL;
2355 
2356 	verify(nvlist_lookup_nvlist(newconfig, ZPOOL_CONFIG_VDEV_TREE,
2357 	    &newnvroot) == 0);
2358 
2359 	if (oldconfig == NULL)
2360 		oldnvroot = NULL;
2361 	else
2362 		verify(nvlist_lookup_nvlist(oldconfig, ZPOOL_CONFIG_VDEV_TREE,
2363 		    &oldnvroot) == 0);
2364 
2365 	/*
2366 	 * Print out the statistics for the pool.
2367 	 */
2368 	print_vdev_stats(zhp, zpool_get_name(zhp), oldnvroot, newnvroot, cb, 0);
2369 
2370 	if (cb->cb_verbose)
2371 		print_iostat_separator(cb);
2372 
2373 	return (0);
2374 }
2375 
2376 int
2377 get_namewidth(zpool_handle_t *zhp, void *data)
2378 {
2379 	iostat_cbdata_t *cb = data;
2380 	nvlist_t *config, *nvroot;
2381 
2382 	if ((config = zpool_get_config(zhp, NULL)) != NULL) {
2383 		verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
2384 		    &nvroot) == 0);
2385 		if (!cb->cb_verbose)
2386 			cb->cb_namewidth = strlen(zpool_get_name(zhp));
2387 		else
2388 			cb->cb_namewidth = max_width(zhp, nvroot, 0,
2389 			    cb->cb_namewidth);
2390 	}
2391 
2392 	/*
2393 	 * The width must fall into the range [10,38].  The upper limit is the
2394 	 * maximum we can have and still fit in 80 columns.
2395 	 */
2396 	if (cb->cb_namewidth < 10)
2397 		cb->cb_namewidth = 10;
2398 	if (cb->cb_namewidth > 38)
2399 		cb->cb_namewidth = 38;
2400 
2401 	return (0);
2402 }
2403 
2404 /*
2405  * Parse the input string, get the 'interval' and 'count' value if there is one.
2406  */
2407 static void
2408 get_interval_count(int *argcp, char **argv, unsigned long *iv,
2409     unsigned long *cnt)
2410 {
2411 	unsigned long interval = 0, count = 0;
2412 	int argc = *argcp, errno;
2413 
2414 	/*
2415 	 * Determine if the last argument is an integer or a pool name
2416 	 */
2417 	if (argc > 0 && isdigit(argv[argc - 1][0])) {
2418 		char *end;
2419 
2420 		errno = 0;
2421 		interval = strtoul(argv[argc - 1], &end, 10);
2422 
2423 		if (*end == '\0' && errno == 0) {
2424 			if (interval == 0) {
2425 				(void) fprintf(stderr, gettext("interval "
2426 				    "cannot be zero\n"));
2427 				usage(B_FALSE);
2428 			}
2429 			/*
2430 			 * Ignore the last parameter
2431 			 */
2432 			argc--;
2433 		} else {
2434 			/*
2435 			 * If this is not a valid number, just plow on.  The
2436 			 * user will get a more informative error message later
2437 			 * on.
2438 			 */
2439 			interval = 0;
2440 		}
2441 	}
2442 
2443 	/*
2444 	 * If the last argument is also an integer, then we have both a count
2445 	 * and an interval.
2446 	 */
2447 	if (argc > 0 && isdigit(argv[argc - 1][0])) {
2448 		char *end;
2449 
2450 		errno = 0;
2451 		count = interval;
2452 		interval = strtoul(argv[argc - 1], &end, 10);
2453 
2454 		if (*end == '\0' && errno == 0) {
2455 			if (interval == 0) {
2456 				(void) fprintf(stderr, gettext("interval "
2457 				    "cannot be zero\n"));
2458 				usage(B_FALSE);
2459 			}
2460 
2461 			/*
2462 			 * Ignore the last parameter
2463 			 */
2464 			argc--;
2465 		} else {
2466 			interval = 0;
2467 		}
2468 	}
2469 
2470 	*iv = interval;
2471 	*cnt = count;
2472 	*argcp = argc;
2473 }
2474 
2475 static void
2476 get_timestamp_arg(char c)
2477 {
2478 	if (c == 'u')
2479 		timestamp_fmt = UDATE;
2480 	else if (c == 'd')
2481 		timestamp_fmt = DDATE;
2482 	else
2483 		usage(B_FALSE);
2484 }
2485 
2486 /*
2487  * zpool iostat [-v] [-T d|u] [pool] ... [interval [count]]
2488  *
2489  *	-v	Display statistics for individual vdevs
2490  *	-T	Display a timestamp in date(1) or Unix format
2491  *
2492  * This command can be tricky because we want to be able to deal with pool
2493  * creation/destruction as well as vdev configuration changes.  The bulk of this
2494  * processing is handled by the pool_list_* routines in zpool_iter.c.  We rely
2495  * on pool_list_update() to detect the addition of new pools.  Configuration
2496  * changes are all handled within libzfs.
2497  */
2498 int
2499 zpool_do_iostat(int argc, char **argv)
2500 {
2501 	int c;
2502 	int ret;
2503 	int npools;
2504 	unsigned long interval = 0, count = 0;
2505 	zpool_list_t *list;
2506 	boolean_t verbose = B_FALSE;
2507 	iostat_cbdata_t cb;
2508 
2509 	/* check options */
2510 	while ((c = getopt(argc, argv, "T:v")) != -1) {
2511 		switch (c) {
2512 		case 'T':
2513 			get_timestamp_arg(*optarg);
2514 			break;
2515 		case 'v':
2516 			verbose = B_TRUE;
2517 			break;
2518 		case '?':
2519 			(void) fprintf(stderr, gettext("invalid option '%c'\n"),
2520 			    optopt);
2521 			usage(B_FALSE);
2522 		}
2523 	}
2524 
2525 	argc -= optind;
2526 	argv += optind;
2527 
2528 	get_interval_count(&argc, argv, &interval, &count);
2529 
2530 	/*
2531 	 * Construct the list of all interesting pools.
2532 	 */
2533 	ret = 0;
2534 	if ((list = pool_list_get(argc, argv, NULL, &ret)) == NULL)
2535 		return (1);
2536 
2537 	if (pool_list_count(list) == 0 && argc != 0) {
2538 		pool_list_free(list);
2539 		return (1);
2540 	}
2541 
2542 	if (pool_list_count(list) == 0 && interval == 0) {
2543 		pool_list_free(list);
2544 		(void) fprintf(stderr, gettext("no pools available\n"));
2545 		return (1);
2546 	}
2547 
2548 	/*
2549 	 * Enter the main iostat loop.
2550 	 */
2551 	cb.cb_list = list;
2552 	cb.cb_verbose = verbose;
2553 	cb.cb_iteration = 0;
2554 	cb.cb_namewidth = 0;
2555 
2556 	for (;;) {
2557 		pool_list_update(list);
2558 
2559 		if ((npools = pool_list_count(list)) == 0)
2560 			break;
2561 
2562 		/*
2563 		 * Refresh all statistics.  This is done as an explicit step
2564 		 * before calculating the maximum name width, so that any
2565 		 * configuration changes are properly accounted for.
2566 		 */
2567 		(void) pool_list_iter(list, B_FALSE, refresh_iostat, &cb);
2568 
2569 		/*
2570 		 * Iterate over all pools to determine the maximum width
2571 		 * for the pool / device name column across all pools.
2572 		 */
2573 		cb.cb_namewidth = 0;
2574 		(void) pool_list_iter(list, B_FALSE, get_namewidth, &cb);
2575 
2576 		if (timestamp_fmt != NODATE)
2577 			print_timestamp(timestamp_fmt);
2578 
2579 		/*
2580 		 * If it's the first time, or verbose mode, print the header.
2581 		 */
2582 		if (++cb.cb_iteration == 1 || verbose)
2583 			print_iostat_header(&cb);
2584 
2585 		(void) pool_list_iter(list, B_FALSE, print_iostat, &cb);
2586 
2587 		/*
2588 		 * If there's more than one pool, and we're not in verbose mode
2589 		 * (which prints a separator for us), then print a separator.
2590 		 */
2591 		if (npools > 1 && !verbose)
2592 			print_iostat_separator(&cb);
2593 
2594 		if (verbose)
2595 			(void) printf("\n");
2596 
2597 		/*
2598 		 * Flush the output so that redirection to a file isn't buffered
2599 		 * indefinitely.
2600 		 */
2601 		(void) fflush(stdout);
2602 
2603 		if (interval == 0)
2604 			break;
2605 
2606 		if (count != 0 && --count == 0)
2607 			break;
2608 
2609 		(void) sleep(interval);
2610 	}
2611 
2612 	pool_list_free(list);
2613 
2614 	return (ret);
2615 }
2616 
2617 typedef struct list_cbdata {
2618 	boolean_t	cb_verbose;
2619 	int		cb_namewidth;
2620 	boolean_t	cb_scripted;
2621 	zprop_list_t	*cb_proplist;
2622 	boolean_t	cb_literal;
2623 } list_cbdata_t;
2624 
2625 /*
2626  * Given a list of columns to display, output appropriate headers for each one.
2627  */
2628 static void
2629 print_header(list_cbdata_t *cb)
2630 {
2631 	zprop_list_t *pl = cb->cb_proplist;
2632 	char headerbuf[ZPOOL_MAXPROPLEN];
2633 	const char *header;
2634 	boolean_t first = B_TRUE;
2635 	boolean_t right_justify;
2636 	size_t width = 0;
2637 
2638 	for (; pl != NULL; pl = pl->pl_next) {
2639 		width = pl->pl_width;
2640 		if (first && cb->cb_verbose) {
2641 			/*
2642 			 * Reset the width to accommodate the verbose listing
2643 			 * of devices.
2644 			 */
2645 			width = cb->cb_namewidth;
2646 		}
2647 
2648 		if (!first)
2649 			(void) printf("  ");
2650 		else
2651 			first = B_FALSE;
2652 
2653 		right_justify = B_FALSE;
2654 		if (pl->pl_prop != ZPROP_INVAL) {
2655 			header = zpool_prop_column_name(pl->pl_prop);
2656 			right_justify = zpool_prop_align_right(pl->pl_prop);
2657 		} else {
2658 			int i;
2659 
2660 			for (i = 0; pl->pl_user_prop[i] != '\0'; i++)
2661 				headerbuf[i] = toupper(pl->pl_user_prop[i]);
2662 			headerbuf[i] = '\0';
2663 			header = headerbuf;
2664 		}
2665 
2666 		if (pl->pl_next == NULL && !right_justify)
2667 			(void) printf("%s", header);
2668 		else if (right_justify)
2669 			(void) printf("%*s", width, header);
2670 		else
2671 			(void) printf("%-*s", width, header);
2672 
2673 	}
2674 
2675 	(void) printf("\n");
2676 }
2677 
2678 /*
2679  * Given a pool and a list of properties, print out all the properties according
2680  * to the described layout.
2681  */
2682 static void
2683 print_pool(zpool_handle_t *zhp, list_cbdata_t *cb)
2684 {
2685 	zprop_list_t *pl = cb->cb_proplist;
2686 	boolean_t first = B_TRUE;
2687 	char property[ZPOOL_MAXPROPLEN];
2688 	char *propstr;
2689 	boolean_t right_justify;
2690 	size_t width;
2691 
2692 	for (; pl != NULL; pl = pl->pl_next) {
2693 
2694 		width = pl->pl_width;
2695 		if (first && cb->cb_verbose) {
2696 			/*
2697 			 * Reset the width to accommodate the verbose listing
2698 			 * of devices.
2699 			 */
2700 			width = cb->cb_namewidth;
2701 		}
2702 
2703 		if (!first) {
2704 			if (cb->cb_scripted)
2705 				(void) printf("\t");
2706 			else
2707 				(void) printf("  ");
2708 		} else {
2709 			first = B_FALSE;
2710 		}
2711 
2712 		right_justify = B_FALSE;
2713 		if (pl->pl_prop != ZPROP_INVAL) {
2714 			if (zpool_get_prop(zhp, pl->pl_prop, property,
2715 			    sizeof (property), NULL, cb->cb_literal) != 0)
2716 				propstr = "-";
2717 			else
2718 				propstr = property;
2719 
2720 			right_justify = zpool_prop_align_right(pl->pl_prop);
2721 		} else if ((zpool_prop_feature(pl->pl_user_prop) ||
2722 		    zpool_prop_unsupported(pl->pl_user_prop)) &&
2723 		    zpool_prop_get_feature(zhp, pl->pl_user_prop, property,
2724 		    sizeof (property)) == 0) {
2725 			propstr = property;
2726 		} else {
2727 			propstr = "-";
2728 		}
2729 
2730 
2731 		/*
2732 		 * If this is being called in scripted mode, or if this is the
2733 		 * last column and it is left-justified, don't include a width
2734 		 * format specifier.
2735 		 */
2736 		if (cb->cb_scripted || (pl->pl_next == NULL && !right_justify))
2737 			(void) printf("%s", propstr);
2738 		else if (right_justify)
2739 			(void) printf("%*s", width, propstr);
2740 		else
2741 			(void) printf("%-*s", width, propstr);
2742 	}
2743 
2744 	(void) printf("\n");
2745 }
2746 
2747 static void
2748 print_one_column(zpool_prop_t prop, uint64_t value, boolean_t scripted,
2749     boolean_t valid)
2750 {
2751 	char propval[64];
2752 	boolean_t fixed;
2753 	size_t width = zprop_width(prop, &fixed, ZFS_TYPE_POOL);
2754 
2755 	switch (prop) {
2756 	case ZPOOL_PROP_EXPANDSZ:
2757 		if (value == 0)
2758 			(void) strlcpy(propval, "-", sizeof (propval));
2759 		else
2760 			zfs_nicenum(value, propval, sizeof (propval));
2761 		break;
2762 	case ZPOOL_PROP_FRAGMENTATION:
2763 		if (value == ZFS_FRAG_INVALID) {
2764 			(void) strlcpy(propval, "-", sizeof (propval));
2765 		} else {
2766 			(void) snprintf(propval, sizeof (propval), "%llu%%",
2767 			    value);
2768 		}
2769 		break;
2770 	case ZPOOL_PROP_CAPACITY:
2771 		(void) snprintf(propval, sizeof (propval), "%llu%%", value);
2772 		break;
2773 	default:
2774 		zfs_nicenum(value, propval, sizeof (propval));
2775 	}
2776 
2777 	if (!valid)
2778 		(void) strlcpy(propval, "-", sizeof (propval));
2779 
2780 	if (scripted)
2781 		(void) printf("\t%s", propval);
2782 	else
2783 		(void) printf("  %*s", width, propval);
2784 }
2785 
2786 void
2787 print_list_stats(zpool_handle_t *zhp, const char *name, nvlist_t *nv,
2788     list_cbdata_t *cb, int depth)
2789 {
2790 	nvlist_t **child;
2791 	vdev_stat_t *vs;
2792 	uint_t c, children;
2793 	char *vname;
2794 	boolean_t scripted = cb->cb_scripted;
2795 	uint64_t islog = B_FALSE;
2796 	boolean_t haslog = B_FALSE;
2797 	char *dashes = "%-*s      -      -      -         -      -      -\n";
2798 
2799 	verify(nvlist_lookup_uint64_array(nv, ZPOOL_CONFIG_VDEV_STATS,
2800 	    (uint64_t **)&vs, &c) == 0);
2801 
2802 	if (name != NULL) {
2803 		boolean_t toplevel = (vs->vs_space != 0);
2804 		uint64_t cap;
2805 
2806 		if (scripted)
2807 			(void) printf("\t%s", name);
2808 		else if (strlen(name) + depth > cb->cb_namewidth)
2809 			(void) printf("%*s%s", depth, "", name);
2810 		else
2811 			(void) printf("%*s%s%*s", depth, "", name,
2812 			    (int)(cb->cb_namewidth - strlen(name) - depth), "");
2813 
2814 		/*
2815 		 * Print the properties for the individual vdevs. Some
2816 		 * properties are only applicable to toplevel vdevs. The
2817 		 * 'toplevel' boolean value is passed to the print_one_column()
2818 		 * to indicate that the value is valid.
2819 		 */
2820 		print_one_column(ZPOOL_PROP_SIZE, vs->vs_space, scripted,
2821 		    toplevel);
2822 		print_one_column(ZPOOL_PROP_ALLOCATED, vs->vs_alloc, scripted,
2823 		    toplevel);
2824 		print_one_column(ZPOOL_PROP_FREE, vs->vs_space - vs->vs_alloc,
2825 		    scripted, toplevel);
2826 		print_one_column(ZPOOL_PROP_EXPANDSZ, vs->vs_esize, scripted,
2827 		    B_TRUE);
2828 		print_one_column(ZPOOL_PROP_FRAGMENTATION,
2829 		    vs->vs_fragmentation, scripted,
2830 		    (vs->vs_fragmentation != ZFS_FRAG_INVALID && toplevel));
2831 		cap = (vs->vs_space == 0) ? 0 :
2832 		    (vs->vs_alloc * 100 / vs->vs_space);
2833 		print_one_column(ZPOOL_PROP_CAPACITY, cap, scripted, toplevel);
2834 		(void) printf("\n");
2835 	}
2836 
2837 	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
2838 	    &child, &children) != 0)
2839 		return;
2840 
2841 	for (c = 0; c < children; c++) {
2842 		uint64_t ishole = B_FALSE;
2843 
2844 		if (nvlist_lookup_uint64(child[c],
2845 		    ZPOOL_CONFIG_IS_HOLE, &ishole) == 0 && ishole)
2846 			continue;
2847 
2848 		if (nvlist_lookup_uint64(child[c],
2849 		    ZPOOL_CONFIG_IS_LOG, &islog) == 0 && islog) {
2850 			haslog = B_TRUE;
2851 			continue;
2852 		}
2853 
2854 		vname = zpool_vdev_name(g_zfs, zhp, child[c], B_FALSE);
2855 		print_list_stats(zhp, vname, child[c], cb, depth + 2);
2856 		free(vname);
2857 	}
2858 
2859 	if (haslog == B_TRUE) {
2860 		/* LINTED E_SEC_PRINTF_VAR_FMT */
2861 		(void) printf(dashes, cb->cb_namewidth, "log");
2862 		for (c = 0; c < children; c++) {
2863 			if (nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_LOG,
2864 			    &islog) != 0 || !islog)
2865 				continue;
2866 			vname = zpool_vdev_name(g_zfs, zhp, child[c], B_FALSE);
2867 			print_list_stats(zhp, vname, child[c], cb, depth + 2);
2868 			free(vname);
2869 		}
2870 	}
2871 
2872 	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_L2CACHE,
2873 	    &child, &children) == 0 && children > 0) {
2874 		/* LINTED E_SEC_PRINTF_VAR_FMT */
2875 		(void) printf(dashes, cb->cb_namewidth, "cache");
2876 		for (c = 0; c < children; c++) {
2877 			vname = zpool_vdev_name(g_zfs, zhp, child[c], B_FALSE);
2878 			print_list_stats(zhp, vname, child[c], cb, depth + 2);
2879 			free(vname);
2880 		}
2881 	}
2882 
2883 	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_SPARES, &child,
2884 	    &children) == 0 && children > 0) {
2885 		/* LINTED E_SEC_PRINTF_VAR_FMT */
2886 		(void) printf(dashes, cb->cb_namewidth, "spare");
2887 		for (c = 0; c < children; c++) {
2888 			vname = zpool_vdev_name(g_zfs, zhp, child[c], B_FALSE);
2889 			print_list_stats(zhp, vname, child[c], cb, depth + 2);
2890 			free(vname);
2891 		}
2892 	}
2893 }
2894 
2895 
2896 /*
2897  * Generic callback function to list a pool.
2898  */
2899 int
2900 list_callback(zpool_handle_t *zhp, void *data)
2901 {
2902 	list_cbdata_t *cbp = data;
2903 	nvlist_t *config;
2904 	nvlist_t *nvroot;
2905 
2906 	config = zpool_get_config(zhp, NULL);
2907 
2908 	print_pool(zhp, cbp);
2909 	if (!cbp->cb_verbose)
2910 		return (0);
2911 
2912 	verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
2913 	    &nvroot) == 0);
2914 	print_list_stats(zhp, NULL, nvroot, cbp, 0);
2915 
2916 	return (0);
2917 }
2918 
2919 /*
2920  * zpool list [-Hp] [-o prop[,prop]*] [-T d|u] [pool] ... [interval [count]]
2921  *
2922  *	-H	Scripted mode.  Don't display headers, and separate properties
2923  *		by a single tab.
2924  *	-o	List of properties to display.  Defaults to
2925  *		"name,size,allocated,free,expandsize,fragmentation,capacity,"
2926  *		"dedupratio,health,altroot"
2927  * 	-p	Diplay values in parsable (exact) format.
2928  *	-T	Display a timestamp in date(1) or Unix format
2929  *
2930  * List all pools in the system, whether or not they're healthy.  Output space
2931  * statistics for each one, as well as health status summary.
2932  */
2933 int
2934 zpool_do_list(int argc, char **argv)
2935 {
2936 	int c;
2937 	int ret;
2938 	list_cbdata_t cb = { 0 };
2939 	static char default_props[] =
2940 	    "name,size,allocated,free,expandsize,fragmentation,capacity,"
2941 	    "dedupratio,health,altroot";
2942 	char *props = default_props;
2943 	unsigned long interval = 0, count = 0;
2944 	zpool_list_t *list;
2945 	boolean_t first = B_TRUE;
2946 
2947 	/* check options */
2948 	while ((c = getopt(argc, argv, ":Ho:pT:v")) != -1) {
2949 		switch (c) {
2950 		case 'H':
2951 			cb.cb_scripted = B_TRUE;
2952 			break;
2953 		case 'o':
2954 			props = optarg;
2955 			break;
2956 		case 'p':
2957 			cb.cb_literal = B_TRUE;
2958 			break;
2959 		case 'T':
2960 			get_timestamp_arg(*optarg);
2961 			break;
2962 		case 'v':
2963 			cb.cb_verbose = B_TRUE;
2964 			break;
2965 		case ':':
2966 			(void) fprintf(stderr, gettext("missing argument for "
2967 			    "'%c' option\n"), optopt);
2968 			usage(B_FALSE);
2969 			break;
2970 		case '?':
2971 			(void) fprintf(stderr, gettext("invalid option '%c'\n"),
2972 			    optopt);
2973 			usage(B_FALSE);
2974 		}
2975 	}
2976 
2977 	argc -= optind;
2978 	argv += optind;
2979 
2980 	get_interval_count(&argc, argv, &interval, &count);
2981 
2982 	if (zprop_get_list(g_zfs, props, &cb.cb_proplist, ZFS_TYPE_POOL) != 0)
2983 		usage(B_FALSE);
2984 
2985 	for (;;) {
2986 		if ((list = pool_list_get(argc, argv, &cb.cb_proplist,
2987 		    &ret)) == NULL)
2988 			return (1);
2989 
2990 		if (pool_list_count(list) == 0)
2991 			break;
2992 
2993 		cb.cb_namewidth = 0;
2994 		(void) pool_list_iter(list, B_FALSE, get_namewidth, &cb);
2995 
2996 		if (timestamp_fmt != NODATE)
2997 			print_timestamp(timestamp_fmt);
2998 
2999 		if (!cb.cb_scripted && (first || cb.cb_verbose)) {
3000 			print_header(&cb);
3001 			first = B_FALSE;
3002 		}
3003 		ret = pool_list_iter(list, B_TRUE, list_callback, &cb);
3004 
3005 		if (interval == 0)
3006 			break;
3007 
3008 		if (count != 0 && --count == 0)
3009 			break;
3010 
3011 		pool_list_free(list);
3012 		(void) sleep(interval);
3013 	}
3014 
3015 	if (argc == 0 && !cb.cb_scripted && pool_list_count(list) == 0) {
3016 		(void) printf(gettext("no pools available\n"));
3017 		ret = 0;
3018 	}
3019 
3020 	pool_list_free(list);
3021 	zprop_free_list(cb.cb_proplist);
3022 	return (ret);
3023 }
3024 
3025 static nvlist_t *
3026 zpool_get_vdev_by_name(nvlist_t *nv, char *name)
3027 {
3028 	nvlist_t **child;
3029 	uint_t c, children;
3030 	nvlist_t *match;
3031 	char *path;
3032 
3033 	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
3034 	    &child, &children) != 0) {
3035 		verify(nvlist_lookup_string(nv, ZPOOL_CONFIG_PATH, &path) == 0);
3036 		if (strncmp(name, "/dev/dsk/", 9) == 0)
3037 			name += 9;
3038 		if (strncmp(path, "/dev/dsk/", 9) == 0)
3039 			path += 9;
3040 		if (strcmp(name, path) == 0)
3041 			return (nv);
3042 		return (NULL);
3043 	}
3044 
3045 	for (c = 0; c < children; c++)
3046 		if ((match = zpool_get_vdev_by_name(child[c], name)) != NULL)
3047 			return (match);
3048 
3049 	return (NULL);
3050 }
3051 
3052 static int
3053 zpool_do_attach_or_replace(int argc, char **argv, int replacing)
3054 {
3055 	boolean_t force = B_FALSE;
3056 	int c;
3057 	nvlist_t *nvroot;
3058 	char *poolname, *old_disk, *new_disk;
3059 	zpool_handle_t *zhp;
3060 	int ret;
3061 
3062 	/* check options */
3063 	while ((c = getopt(argc, argv, "f")) != -1) {
3064 		switch (c) {
3065 		case 'f':
3066 			force = B_TRUE;
3067 			break;
3068 		case '?':
3069 			(void) fprintf(stderr, gettext("invalid option '%c'\n"),
3070 			    optopt);
3071 			usage(B_FALSE);
3072 		}
3073 	}
3074 
3075 	argc -= optind;
3076 	argv += optind;
3077 
3078 	/* get pool name and check number of arguments */
3079 	if (argc < 1) {
3080 		(void) fprintf(stderr, gettext("missing pool name argument\n"));
3081 		usage(B_FALSE);
3082 	}
3083 
3084 	poolname = argv[0];
3085 
3086 	if (argc < 2) {
3087 		(void) fprintf(stderr,
3088 		    gettext("missing <device> specification\n"));
3089 		usage(B_FALSE);
3090 	}
3091 
3092 	old_disk = argv[1];
3093 
3094 	if (argc < 3) {
3095 		if (!replacing) {
3096 			(void) fprintf(stderr,
3097 			    gettext("missing <new_device> specification\n"));
3098 			usage(B_FALSE);
3099 		}
3100 		new_disk = old_disk;
3101 		argc -= 1;
3102 		argv += 1;
3103 	} else {
3104 		new_disk = argv[2];
3105 		argc -= 2;
3106 		argv += 2;
3107 	}
3108 
3109 	if (argc > 1) {
3110 		(void) fprintf(stderr, gettext("too many arguments\n"));
3111 		usage(B_FALSE);
3112 	}
3113 
3114 	if ((zhp = zpool_open(g_zfs, poolname)) == NULL)
3115 		return (1);
3116 
3117 	if (zpool_get_config(zhp, NULL) == NULL) {
3118 		(void) fprintf(stderr, gettext("pool '%s' is unavailable\n"),
3119 		    poolname);
3120 		zpool_close(zhp);
3121 		return (1);
3122 	}
3123 
3124 	nvroot = make_root_vdev(zhp, force, B_FALSE, replacing, B_FALSE,
3125 	    argc, argv);
3126 	if (nvroot == NULL) {
3127 		zpool_close(zhp);
3128 		return (1);
3129 	}
3130 
3131 	ret = zpool_vdev_attach(zhp, old_disk, new_disk, nvroot, replacing);
3132 
3133 	nvlist_free(nvroot);
3134 	zpool_close(zhp);
3135 
3136 	return (ret);
3137 }
3138 
3139 /*
3140  * zpool replace [-f] <pool> <device> <new_device>
3141  *
3142  *	-f	Force attach, even if <new_device> appears to be in use.
3143  *
3144  * Replace <device> with <new_device>.
3145  */
3146 /* ARGSUSED */
3147 int
3148 zpool_do_replace(int argc, char **argv)
3149 {
3150 	return (zpool_do_attach_or_replace(argc, argv, B_TRUE));
3151 }
3152 
3153 /*
3154  * zpool attach [-f] <pool> <device> <new_device>
3155  *
3156  *	-f	Force attach, even if <new_device> appears to be in use.
3157  *
3158  * Attach <new_device> to the mirror containing <device>.  If <device> is not
3159  * part of a mirror, then <device> will be transformed into a mirror of
3160  * <device> and <new_device>.  In either case, <new_device> will begin life
3161  * with a DTL of [0, now], and will immediately begin to resilver itself.
3162  */
3163 int
3164 zpool_do_attach(int argc, char **argv)
3165 {
3166 	return (zpool_do_attach_or_replace(argc, argv, B_FALSE));
3167 }
3168 
3169 /*
3170  * zpool detach [-f] <pool> <device>
3171  *
3172  *	-f	Force detach of <device>, even if DTLs argue against it
3173  *		(not supported yet)
3174  *
3175  * Detach a device from a mirror.  The operation will be refused if <device>
3176  * is the last device in the mirror, or if the DTLs indicate that this device
3177  * has the only valid copy of some data.
3178  */
3179 /* ARGSUSED */
3180 int
3181 zpool_do_detach(int argc, char **argv)
3182 {
3183 	int c;
3184 	char *poolname, *path;
3185 	zpool_handle_t *zhp;
3186 	int ret;
3187 
3188 	/* check options */
3189 	while ((c = getopt(argc, argv, "f")) != -1) {
3190 		switch (c) {
3191 		case 'f':
3192 		case '?':
3193 			(void) fprintf(stderr, gettext("invalid option '%c'\n"),
3194 			    optopt);
3195 			usage(B_FALSE);
3196 		}
3197 	}
3198 
3199 	argc -= optind;
3200 	argv += optind;
3201 
3202 	/* get pool name and check number of arguments */
3203 	if (argc < 1) {
3204 		(void) fprintf(stderr, gettext("missing pool name argument\n"));
3205 		usage(B_FALSE);
3206 	}
3207 
3208 	if (argc < 2) {
3209 		(void) fprintf(stderr,
3210 		    gettext("missing <device> specification\n"));
3211 		usage(B_FALSE);
3212 	}
3213 
3214 	poolname = argv[0];
3215 	path = argv[1];
3216 
3217 	if ((zhp = zpool_open(g_zfs, poolname)) == NULL)
3218 		return (1);
3219 
3220 	ret = zpool_vdev_detach(zhp, path);
3221 
3222 	zpool_close(zhp);
3223 
3224 	return (ret);
3225 }
3226 
3227 /*
3228  * zpool split [-n] [-o prop=val] ...
3229  *		[-o mntopt] ...
3230  *		[-R altroot] <pool> <newpool> [<device> ...]
3231  *
3232  *	-n	Do not split the pool, but display the resulting layout if
3233  *		it were to be split.
3234  *	-o	Set property=value, or set mount options.
3235  *	-R	Mount the split-off pool under an alternate root.
3236  *
3237  * Splits the named pool and gives it the new pool name.  Devices to be split
3238  * off may be listed, provided that no more than one device is specified
3239  * per top-level vdev mirror.  The newly split pool is left in an exported
3240  * state unless -R is specified.
3241  *
3242  * Restrictions: the top-level of the pool pool must only be made up of
3243  * mirrors; all devices in the pool must be healthy; no device may be
3244  * undergoing a resilvering operation.
3245  */
3246 int
3247 zpool_do_split(int argc, char **argv)
3248 {
3249 	char *srcpool, *newpool, *propval;
3250 	char *mntopts = NULL;
3251 	splitflags_t flags;
3252 	int c, ret = 0;
3253 	zpool_handle_t *zhp;
3254 	nvlist_t *config, *props = NULL;
3255 
3256 	flags.dryrun = B_FALSE;
3257 	flags.import = B_FALSE;
3258 
3259 	/* check options */
3260 	while ((c = getopt(argc, argv, ":R:no:")) != -1) {
3261 		switch (c) {
3262 		case 'R':
3263 			flags.import = B_TRUE;
3264 			if (add_prop_list(
3265 			    zpool_prop_to_name(ZPOOL_PROP_ALTROOT), optarg,
3266 			    &props, B_TRUE) != 0) {
3267 				if (props)
3268 					nvlist_free(props);
3269 				usage(B_FALSE);
3270 			}
3271 			break;
3272 		case 'n':
3273 			flags.dryrun = B_TRUE;
3274 			break;
3275 		case 'o':
3276 			if ((propval = strchr(optarg, '=')) != NULL) {
3277 				*propval = '\0';
3278 				propval++;
3279 				if (add_prop_list(optarg, propval,
3280 				    &props, B_TRUE) != 0) {
3281 					if (props)
3282 						nvlist_free(props);
3283 					usage(B_FALSE);
3284 				}
3285 			} else {
3286 				mntopts = optarg;
3287 			}
3288 			break;
3289 		case ':':
3290 			(void) fprintf(stderr, gettext("missing argument for "
3291 			    "'%c' option\n"), optopt);
3292 			usage(B_FALSE);
3293 			break;
3294 		case '?':
3295 			(void) fprintf(stderr, gettext("invalid option '%c'\n"),
3296 			    optopt);
3297 			usage(B_FALSE);
3298 			break;
3299 		}
3300 	}
3301 
3302 	if (!flags.import && mntopts != NULL) {
3303 		(void) fprintf(stderr, gettext("setting mntopts is only "
3304 		    "valid when importing the pool\n"));
3305 		usage(B_FALSE);
3306 	}
3307 
3308 	argc -= optind;
3309 	argv += optind;
3310 
3311 	if (argc < 1) {
3312 		(void) fprintf(stderr, gettext("Missing pool name\n"));
3313 		usage(B_FALSE);
3314 	}
3315 	if (argc < 2) {
3316 		(void) fprintf(stderr, gettext("Missing new pool name\n"));
3317 		usage(B_FALSE);
3318 	}
3319 
3320 	srcpool = argv[0];
3321 	newpool = argv[1];
3322 
3323 	argc -= 2;
3324 	argv += 2;
3325 
3326 	if ((zhp = zpool_open(g_zfs, srcpool)) == NULL)
3327 		return (1);
3328 
3329 	config = split_mirror_vdev(zhp, newpool, props, flags, argc, argv);
3330 	if (config == NULL) {
3331 		ret = 1;
3332 	} else {
3333 		if (flags.dryrun) {
3334 			(void) printf(gettext("would create '%s' with the "
3335 			    "following layout:\n\n"), newpool);
3336 			print_vdev_tree(NULL, newpool, config, 0, B_FALSE);
3337 		}
3338 		nvlist_free(config);
3339 	}
3340 
3341 	zpool_close(zhp);
3342 
3343 	if (ret != 0 || flags.dryrun || !flags.import)
3344 		return (ret);
3345 
3346 	/*
3347 	 * The split was successful. Now we need to open the new
3348 	 * pool and import it.
3349 	 */
3350 	if ((zhp = zpool_open_canfail(g_zfs, newpool)) == NULL)
3351 		return (1);
3352 	if (zpool_get_state(zhp) != POOL_STATE_UNAVAIL &&
3353 	    zpool_enable_datasets(zhp, mntopts, 0) != 0) {
3354 		ret = 1;
3355 		(void) fprintf(stderr, gettext("Split was successful, but "
3356 		    "the datasets could not all be mounted\n"));
3357 		(void) fprintf(stderr, gettext("Try doing '%s' with a "
3358 		    "different altroot\n"), "zpool import");
3359 	}
3360 	zpool_close(zhp);
3361 
3362 	return (ret);
3363 }
3364 
3365 
3366 
3367 /*
3368  * zpool online <pool> <device> ...
3369  */
3370 int
3371 zpool_do_online(int argc, char **argv)
3372 {
3373 	int c, i;
3374 	char *poolname;
3375 	zpool_handle_t *zhp;
3376 	int ret = 0;
3377 	vdev_state_t newstate;
3378 	int flags = 0;
3379 
3380 	/* check options */
3381 	while ((c = getopt(argc, argv, "et")) != -1) {
3382 		switch (c) {
3383 		case 'e':
3384 			flags |= ZFS_ONLINE_EXPAND;
3385 			break;
3386 		case 't':
3387 		case '?':
3388 			(void) fprintf(stderr, gettext("invalid option '%c'\n"),
3389 			    optopt);
3390 			usage(B_FALSE);
3391 		}
3392 	}
3393 
3394 	argc -= optind;
3395 	argv += optind;
3396 
3397 	/* get pool name and check number of arguments */
3398 	if (argc < 1) {
3399 		(void) fprintf(stderr, gettext("missing pool name\n"));
3400 		usage(B_FALSE);
3401 	}
3402 	if (argc < 2) {
3403 		(void) fprintf(stderr, gettext("missing device name\n"));
3404 		usage(B_FALSE);
3405 	}
3406 
3407 	poolname = argv[0];
3408 
3409 	if ((zhp = zpool_open(g_zfs, poolname)) == NULL)
3410 		return (1);
3411 
3412 	for (i = 1; i < argc; i++) {
3413 		if (zpool_vdev_online(zhp, argv[i], flags, &newstate) == 0) {
3414 			if (newstate != VDEV_STATE_HEALTHY) {
3415 				(void) printf(gettext("warning: device '%s' "
3416 				    "onlined, but remains in faulted state\n"),
3417 				    argv[i]);
3418 				if (newstate == VDEV_STATE_FAULTED)
3419 					(void) printf(gettext("use 'zpool "
3420 					    "clear' to restore a faulted "
3421 					    "device\n"));
3422 				else
3423 					(void) printf(gettext("use 'zpool "
3424 					    "replace' to replace devices "
3425 					    "that are no longer present\n"));
3426 			}
3427 		} else {
3428 			ret = 1;
3429 		}
3430 	}
3431 
3432 	zpool_close(zhp);
3433 
3434 	return (ret);
3435 }
3436 
3437 /*
3438  * zpool offline [-ft] <pool> <device> ...
3439  *
3440  *	-f	Force the device into the offline state, even if doing
3441  *		so would appear to compromise pool availability.
3442  *		(not supported yet)
3443  *
3444  *	-t	Only take the device off-line temporarily.  The offline
3445  *		state will not be persistent across reboots.
3446  */
3447 /* ARGSUSED */
3448 int
3449 zpool_do_offline(int argc, char **argv)
3450 {
3451 	int c, i;
3452 	char *poolname;
3453 	zpool_handle_t *zhp;
3454 	int ret = 0;
3455 	boolean_t istmp = B_FALSE;
3456 
3457 	/* check options */
3458 	while ((c = getopt(argc, argv, "ft")) != -1) {
3459 		switch (c) {
3460 		case 't':
3461 			istmp = B_TRUE;
3462 			break;
3463 		case 'f':
3464 		case '?':
3465 			(void) fprintf(stderr, gettext("invalid option '%c'\n"),
3466 			    optopt);
3467 			usage(B_FALSE);
3468 		}
3469 	}
3470 
3471 	argc -= optind;
3472 	argv += optind;
3473 
3474 	/* get pool name and check number of arguments */
3475 	if (argc < 1) {
3476 		(void) fprintf(stderr, gettext("missing pool name\n"));
3477 		usage(B_FALSE);
3478 	}
3479 	if (argc < 2) {
3480 		(void) fprintf(stderr, gettext("missing device name\n"));
3481 		usage(B_FALSE);
3482 	}
3483 
3484 	poolname = argv[0];
3485 
3486 	if ((zhp = zpool_open(g_zfs, poolname)) == NULL)
3487 		return (1);
3488 
3489 	for (i = 1; i < argc; i++) {
3490 		if (zpool_vdev_offline(zhp, argv[i], istmp) != 0)
3491 			ret = 1;
3492 	}
3493 
3494 	zpool_close(zhp);
3495 
3496 	return (ret);
3497 }
3498 
3499 /*
3500  * zpool clear <pool> [device]
3501  *
3502  * Clear all errors associated with a pool or a particular device.
3503  */
3504 int
3505 zpool_do_clear(int argc, char **argv)
3506 {
3507 	int c;
3508 	int ret = 0;
3509 	boolean_t dryrun = B_FALSE;
3510 	boolean_t do_rewind = B_FALSE;
3511 	boolean_t xtreme_rewind = B_FALSE;
3512 	uint32_t rewind_policy = ZPOOL_NO_REWIND;
3513 	nvlist_t *policy = NULL;
3514 	zpool_handle_t *zhp;
3515 	char *pool, *device;
3516 
3517 	/* check options */
3518 	while ((c = getopt(argc, argv, "FnX")) != -1) {
3519 		switch (c) {
3520 		case 'F':
3521 			do_rewind = B_TRUE;
3522 			break;
3523 		case 'n':
3524 			dryrun = B_TRUE;
3525 			break;
3526 		case 'X':
3527 			xtreme_rewind = B_TRUE;
3528 			break;
3529 		case '?':
3530 			(void) fprintf(stderr, gettext("invalid option '%c'\n"),
3531 			    optopt);
3532 			usage(B_FALSE);
3533 		}
3534 	}
3535 
3536 	argc -= optind;
3537 	argv += optind;
3538 
3539 	if (argc < 1) {
3540 		(void) fprintf(stderr, gettext("missing pool name\n"));
3541 		usage(B_FALSE);
3542 	}
3543 
3544 	if (argc > 2) {
3545 		(void) fprintf(stderr, gettext("too many arguments\n"));
3546 		usage(B_FALSE);
3547 	}
3548 
3549 	if ((dryrun || xtreme_rewind) && !do_rewind) {
3550 		(void) fprintf(stderr,
3551 		    gettext("-n or -X only meaningful with -F\n"));
3552 		usage(B_FALSE);
3553 	}
3554 	if (dryrun)
3555 		rewind_policy = ZPOOL_TRY_REWIND;
3556 	else if (do_rewind)
3557 		rewind_policy = ZPOOL_DO_REWIND;
3558 	if (xtreme_rewind)
3559 		rewind_policy |= ZPOOL_EXTREME_REWIND;
3560 
3561 	/* In future, further rewind policy choices can be passed along here */
3562 	if (nvlist_alloc(&policy, NV_UNIQUE_NAME, 0) != 0 ||
3563 	    nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind_policy) != 0)
3564 		return (1);
3565 
3566 	pool = argv[0];
3567 	device = argc == 2 ? argv[1] : NULL;
3568 
3569 	if ((zhp = zpool_open_canfail(g_zfs, pool)) == NULL) {
3570 		nvlist_free(policy);
3571 		return (1);
3572 	}
3573 
3574 	if (zpool_clear(zhp, device, policy) != 0)
3575 		ret = 1;
3576 
3577 	zpool_close(zhp);
3578 
3579 	nvlist_free(policy);
3580 
3581 	return (ret);
3582 }
3583 
3584 /*
3585  * zpool reguid <pool>
3586  */
3587 int
3588 zpool_do_reguid(int argc, char **argv)
3589 {
3590 	int c;
3591 	char *poolname;
3592 	zpool_handle_t *zhp;
3593 	int ret = 0;
3594 
3595 	/* check options */
3596 	while ((c = getopt(argc, argv, "")) != -1) {
3597 		switch (c) {
3598 		case '?':
3599 			(void) fprintf(stderr, gettext("invalid option '%c'\n"),
3600 			    optopt);
3601 			usage(B_FALSE);
3602 		}
3603 	}
3604 
3605 	argc -= optind;
3606 	argv += optind;
3607 
3608 	/* get pool name and check number of arguments */
3609 	if (argc < 1) {
3610 		(void) fprintf(stderr, gettext("missing pool name\n"));
3611 		usage(B_FALSE);
3612 	}
3613 
3614 	if (argc > 1) {
3615 		(void) fprintf(stderr, gettext("too many arguments\n"));
3616 		usage(B_FALSE);
3617 	}
3618 
3619 	poolname = argv[0];
3620 	if ((zhp = zpool_open(g_zfs, poolname)) == NULL)
3621 		return (1);
3622 
3623 	ret = zpool_reguid(zhp);
3624 
3625 	zpool_close(zhp);
3626 	return (ret);
3627 }
3628 
3629 
3630 /*
3631  * zpool reopen <pool>
3632  *
3633  * Reopen the pool so that the kernel can update the sizes of all vdevs.
3634  */
3635 int
3636 zpool_do_reopen(int argc, char **argv)
3637 {
3638 	int c;
3639 	int ret = 0;
3640 	zpool_handle_t *zhp;
3641 	char *pool;
3642 
3643 	/* check options */
3644 	while ((c = getopt(argc, argv, "")) != -1) {
3645 		switch (c) {
3646 		case '?':
3647 			(void) fprintf(stderr, gettext("invalid option '%c'\n"),
3648 			    optopt);
3649 			usage(B_FALSE);
3650 		}
3651 	}
3652 
3653 	argc--;
3654 	argv++;
3655 
3656 	if (argc < 1) {
3657 		(void) fprintf(stderr, gettext("missing pool name\n"));
3658 		usage(B_FALSE);
3659 	}
3660 
3661 	if (argc > 1) {
3662 		(void) fprintf(stderr, gettext("too many arguments\n"));
3663 		usage(B_FALSE);
3664 	}
3665 
3666 	pool = argv[0];
3667 	if ((zhp = zpool_open_canfail(g_zfs, pool)) == NULL)
3668 		return (1);
3669 
3670 	ret = zpool_reopen(zhp);
3671 	zpool_close(zhp);
3672 	return (ret);
3673 }
3674 
3675 typedef struct scrub_cbdata {
3676 	int	cb_type;
3677 	int	cb_argc;
3678 	char	**cb_argv;
3679 } scrub_cbdata_t;
3680 
3681 int
3682 scrub_callback(zpool_handle_t *zhp, void *data)
3683 {
3684 	scrub_cbdata_t *cb = data;
3685 	int err;
3686 
3687 	/*
3688 	 * Ignore faulted pools.
3689 	 */
3690 	if (zpool_get_state(zhp) == POOL_STATE_UNAVAIL) {
3691 		(void) fprintf(stderr, gettext("cannot scrub '%s': pool is "
3692 		    "currently unavailable\n"), zpool_get_name(zhp));
3693 		return (1);
3694 	}
3695 
3696 	err = zpool_scan(zhp, cb->cb_type);
3697 
3698 	return (err != 0);
3699 }
3700 
3701 /*
3702  * zpool scrub [-s] <pool> ...
3703  *
3704  *	-s	Stop.  Stops any in-progress scrub.
3705  */
3706 int
3707 zpool_do_scrub(int argc, char **argv)
3708 {
3709 	int c;
3710 	scrub_cbdata_t cb;
3711 
3712 	cb.cb_type = POOL_SCAN_SCRUB;
3713 
3714 	/* check options */
3715 	while ((c = getopt(argc, argv, "s")) != -1) {
3716 		switch (c) {
3717 		case 's':
3718 			cb.cb_type = POOL_SCAN_NONE;
3719 			break;
3720 		case '?':
3721 			(void) fprintf(stderr, gettext("invalid option '%c'\n"),
3722 			    optopt);
3723 			usage(B_FALSE);
3724 		}
3725 	}
3726 
3727 	cb.cb_argc = argc;
3728 	cb.cb_argv = argv;
3729 	argc -= optind;
3730 	argv += optind;
3731 
3732 	if (argc < 1) {
3733 		(void) fprintf(stderr, gettext("missing pool name argument\n"));
3734 		usage(B_FALSE);
3735 	}
3736 
3737 	return (for_each_pool(argc, argv, B_TRUE, NULL, scrub_callback, &cb));
3738 }
3739 
3740 typedef struct status_cbdata {
3741 	int		cb_count;
3742 	boolean_t	cb_allpools;
3743 	boolean_t	cb_verbose;
3744 	boolean_t	cb_explain;
3745 	boolean_t	cb_first;
3746 	boolean_t	cb_dedup_stats;
3747 } status_cbdata_t;
3748 
3749 /*
3750  * Print out detailed scrub status.
3751  */
3752 void
3753 print_scan_status(pool_scan_stat_t *ps)
3754 {
3755 	time_t start, end;
3756 	uint64_t elapsed, mins_left, hours_left;
3757 	uint64_t pass_exam, examined, total;
3758 	uint_t rate;
3759 	double fraction_done;
3760 	char processed_buf[7], examined_buf[7], total_buf[7], rate_buf[7];
3761 
3762 	(void) printf(gettext("  scan: "));
3763 
3764 	/* If there's never been a scan, there's not much to say. */
3765 	if (ps == NULL || ps->pss_func == POOL_SCAN_NONE ||
3766 	    ps->pss_func >= POOL_SCAN_FUNCS) {
3767 		(void) printf(gettext("none requested\n"));
3768 		return;
3769 	}
3770 
3771 	start = ps->pss_start_time;
3772 	end = ps->pss_end_time;
3773 	zfs_nicenum(ps->pss_processed, processed_buf, sizeof (processed_buf));
3774 
3775 	assert(ps->pss_func == POOL_SCAN_SCRUB ||
3776 	    ps->pss_func == POOL_SCAN_RESILVER);
3777 	/*
3778 	 * Scan is finished or canceled.
3779 	 */
3780 	if (ps->pss_state == DSS_FINISHED) {
3781 		uint64_t minutes_taken = (end - start) / 60;
3782 		char *fmt;
3783 
3784 		if (ps->pss_func == POOL_SCAN_SCRUB) {
3785 			fmt = gettext("scrub repaired %s in %lluh%um with "
3786 			    "%llu errors on %s");
3787 		} else if (ps->pss_func == POOL_SCAN_RESILVER) {
3788 			fmt = gettext("resilvered %s in %lluh%um with "
3789 			    "%llu errors on %s");
3790 		}
3791 		/* LINTED */
3792 		(void) printf(fmt, processed_buf,
3793 		    (u_longlong_t)(minutes_taken / 60),
3794 		    (uint_t)(minutes_taken % 60),
3795 		    (u_longlong_t)ps->pss_errors,
3796 		    ctime((time_t *)&end));
3797 		return;
3798 	} else if (ps->pss_state == DSS_CANCELED) {
3799 		if (ps->pss_func == POOL_SCAN_SCRUB) {
3800 			(void) printf(gettext("scrub canceled on %s"),
3801 			    ctime(&end));
3802 		} else if (ps->pss_func == POOL_SCAN_RESILVER) {
3803 			(void) printf(gettext("resilver canceled on %s"),
3804 			    ctime(&end));
3805 		}
3806 		return;
3807 	}
3808 
3809 	assert(ps->pss_state == DSS_SCANNING);
3810 
3811 	/*
3812 	 * Scan is in progress.
3813 	 */
3814 	if (ps->pss_func == POOL_SCAN_SCRUB) {
3815 		(void) printf(gettext("scrub in progress since %s"),
3816 		    ctime(&start));
3817 	} else if (ps->pss_func == POOL_SCAN_RESILVER) {
3818 		(void) printf(gettext("resilver in progress since %s"),
3819 		    ctime(&start));
3820 	}
3821 
3822 	examined = ps->pss_examined ? ps->pss_examined : 1;
3823 	total = ps->pss_to_examine;
3824 	fraction_done = (double)examined / total;
3825 
3826 	/* elapsed time for this pass */
3827 	elapsed = time(NULL) - ps->pss_pass_start;
3828 	elapsed = elapsed ? elapsed : 1;
3829 	pass_exam = ps->pss_pass_exam ? ps->pss_pass_exam : 1;
3830 	rate = pass_exam / elapsed;
3831 	rate = rate ? rate : 1;
3832 	mins_left = ((total - examined) / rate) / 60;
3833 	hours_left = mins_left / 60;
3834 
3835 	zfs_nicenum(examined, examined_buf, sizeof (examined_buf));
3836 	zfs_nicenum(total, total_buf, sizeof (total_buf));
3837 	zfs_nicenum(rate, rate_buf, sizeof (rate_buf));
3838 
3839 	/*
3840 	 * do not print estimated time if hours_left is more than 30 days
3841 	 */
3842 	(void) printf(gettext("    %s scanned out of %s at %s/s"),
3843 	    examined_buf, total_buf, rate_buf);
3844 	if (hours_left < (30 * 24)) {
3845 		(void) printf(gettext(", %lluh%um to go\n"),
3846 		    (u_longlong_t)hours_left, (uint_t)(mins_left % 60));
3847 	} else {
3848 		(void) printf(gettext(
3849 		    ", (scan is slow, no estimated time)\n"));
3850 	}
3851 
3852 	if (ps->pss_func == POOL_SCAN_RESILVER) {
3853 		(void) printf(gettext("    %s resilvered, %.2f%% done\n"),
3854 		    processed_buf, 100 * fraction_done);
3855 	} else if (ps->pss_func == POOL_SCAN_SCRUB) {
3856 		(void) printf(gettext("    %s repaired, %.2f%% done\n"),
3857 		    processed_buf, 100 * fraction_done);
3858 	}
3859 }
3860 
3861 static void
3862 print_error_log(zpool_handle_t *zhp)
3863 {
3864 	nvlist_t *nverrlist = NULL;
3865 	nvpair_t *elem;
3866 	char *pathname;
3867 	size_t len = MAXPATHLEN * 2;
3868 
3869 	if (zpool_get_errlog(zhp, &nverrlist) != 0) {
3870 		(void) printf("errors: List of errors unavailable "
3871 		    "(insufficient privileges)\n");
3872 		return;
3873 	}
3874 
3875 	(void) printf("errors: Permanent errors have been "
3876 	    "detected in the following files:\n\n");
3877 
3878 	pathname = safe_malloc(len);
3879 	elem = NULL;
3880 	while ((elem = nvlist_next_nvpair(nverrlist, elem)) != NULL) {
3881 		nvlist_t *nv;
3882 		uint64_t dsobj, obj;
3883 
3884 		verify(nvpair_value_nvlist(elem, &nv) == 0);
3885 		verify(nvlist_lookup_uint64(nv, ZPOOL_ERR_DATASET,
3886 		    &dsobj) == 0);
3887 		verify(nvlist_lookup_uint64(nv, ZPOOL_ERR_OBJECT,
3888 		    &obj) == 0);
3889 		zpool_obj_to_path(zhp, dsobj, obj, pathname, len);
3890 		(void) printf("%7s %s\n", "", pathname);
3891 	}
3892 	free(pathname);
3893 	nvlist_free(nverrlist);
3894 }
3895 
3896 static void
3897 print_spares(zpool_handle_t *zhp, nvlist_t **spares, uint_t nspares,
3898     int namewidth)
3899 {
3900 	uint_t i;
3901 	char *name;
3902 
3903 	if (nspares == 0)
3904 		return;
3905 
3906 	(void) printf(gettext("\tspares\n"));
3907 
3908 	for (i = 0; i < nspares; i++) {
3909 		name = zpool_vdev_name(g_zfs, zhp, spares[i], B_FALSE);
3910 		print_status_config(zhp, name, spares[i],
3911 		    namewidth, 2, B_TRUE);
3912 		free(name);
3913 	}
3914 }
3915 
3916 static void
3917 print_l2cache(zpool_handle_t *zhp, nvlist_t **l2cache, uint_t nl2cache,
3918     int namewidth)
3919 {
3920 	uint_t i;
3921 	char *name;
3922 
3923 	if (nl2cache == 0)
3924 		return;
3925 
3926 	(void) printf(gettext("\tcache\n"));
3927 
3928 	for (i = 0; i < nl2cache; i++) {
3929 		name = zpool_vdev_name(g_zfs, zhp, l2cache[i], B_FALSE);
3930 		print_status_config(zhp, name, l2cache[i],
3931 		    namewidth, 2, B_FALSE);
3932 		free(name);
3933 	}
3934 }
3935 
3936 static void
3937 print_dedup_stats(nvlist_t *config)
3938 {
3939 	ddt_histogram_t *ddh;
3940 	ddt_stat_t *dds;
3941 	ddt_object_t *ddo;
3942 	uint_t c;
3943 
3944 	/*
3945 	 * If the pool was faulted then we may not have been able to
3946 	 * obtain the config. Otherwise, if we have anything in the dedup
3947 	 * table continue processing the stats.
3948 	 */
3949 	if (nvlist_lookup_uint64_array(config, ZPOOL_CONFIG_DDT_OBJ_STATS,
3950 	    (uint64_t **)&ddo, &c) != 0)
3951 		return;
3952 
3953 	(void) printf("\n");
3954 	(void) printf(gettext(" dedup: "));
3955 	if (ddo->ddo_count == 0) {
3956 		(void) printf(gettext("no DDT entries\n"));
3957 		return;
3958 	}
3959 
3960 	(void) printf("DDT entries %llu, size %llu on disk, %llu in core\n",
3961 	    (u_longlong_t)ddo->ddo_count,
3962 	    (u_longlong_t)ddo->ddo_dspace,
3963 	    (u_longlong_t)ddo->ddo_mspace);
3964 
3965 	verify(nvlist_lookup_uint64_array(config, ZPOOL_CONFIG_DDT_STATS,
3966 	    (uint64_t **)&dds, &c) == 0);
3967 	verify(nvlist_lookup_uint64_array(config, ZPOOL_CONFIG_DDT_HISTOGRAM,
3968 	    (uint64_t **)&ddh, &c) == 0);
3969 	zpool_dump_ddt(dds, ddh);
3970 }
3971 
3972 /*
3973  * Display a summary of pool status.  Displays a summary such as:
3974  *
3975  *        pool: tank
3976  *	status: DEGRADED
3977  *	reason: One or more devices ...
3978  *         see: http://illumos.org/msg/ZFS-xxxx-01
3979  *	config:
3980  *		mirror		DEGRADED
3981  *                c1t0d0	OK
3982  *                c2t0d0	UNAVAIL
3983  *
3984  * When given the '-v' option, we print out the complete config.  If the '-e'
3985  * option is specified, then we print out error rate information as well.
3986  */
3987 int
3988 status_callback(zpool_handle_t *zhp, void *data)
3989 {
3990 	status_cbdata_t *cbp = data;
3991 	nvlist_t *config, *nvroot;
3992 	char *msgid;
3993 	int reason;
3994 	const char *health;
3995 	uint_t c;
3996 	vdev_stat_t *vs;
3997 
3998 	config = zpool_get_config(zhp, NULL);
3999 	reason = zpool_get_status(zhp, &msgid);
4000 
4001 	cbp->cb_count++;
4002 
4003 	/*
4004 	 * If we were given 'zpool status -x', only report those pools with
4005 	 * problems.
4006 	 */
4007 	if (cbp->cb_explain &&
4008 	    (reason == ZPOOL_STATUS_OK ||
4009 	    reason == ZPOOL_STATUS_VERSION_OLDER ||
4010 	    reason == ZPOOL_STATUS_FEAT_DISABLED)) {
4011 		if (!cbp->cb_allpools) {
4012 			(void) printf(gettext("pool '%s' is healthy\n"),
4013 			    zpool_get_name(zhp));
4014 			if (cbp->cb_first)
4015 				cbp->cb_first = B_FALSE;
4016 		}
4017 		return (0);
4018 	}
4019 
4020 	if (cbp->cb_first)
4021 		cbp->cb_first = B_FALSE;
4022 	else
4023 		(void) printf("\n");
4024 
4025 	verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
4026 	    &nvroot) == 0);
4027 	verify(nvlist_lookup_uint64_array(nvroot, ZPOOL_CONFIG_VDEV_STATS,
4028 	    (uint64_t **)&vs, &c) == 0);
4029 	health = zpool_state_to_name(vs->vs_state, vs->vs_aux);
4030 
4031 	(void) printf(gettext("  pool: %s\n"), zpool_get_name(zhp));
4032 	(void) printf(gettext(" state: %s\n"), health);
4033 
4034 	switch (reason) {
4035 	case ZPOOL_STATUS_MISSING_DEV_R:
4036 		(void) printf(gettext("status: One or more devices could not "
4037 		    "be opened.  Sufficient replicas exist for\n\tthe pool to "
4038 		    "continue functioning in a degraded state.\n"));
4039 		(void) printf(gettext("action: Attach the missing device and "
4040 		    "online it using 'zpool online'.\n"));
4041 		break;
4042 
4043 	case ZPOOL_STATUS_MISSING_DEV_NR:
4044 		(void) printf(gettext("status: One or more devices could not "
4045 		    "be opened.  There are insufficient\n\treplicas for the "
4046 		    "pool to continue functioning.\n"));
4047 		(void) printf(gettext("action: Attach the missing device and "
4048 		    "online it using 'zpool online'.\n"));
4049 		break;
4050 
4051 	case ZPOOL_STATUS_CORRUPT_LABEL_R:
4052 		(void) printf(gettext("status: One or more devices could not "
4053 		    "be used because the label is missing or\n\tinvalid.  "
4054 		    "Sufficient replicas exist for the pool to continue\n\t"
4055 		    "functioning in a degraded state.\n"));
4056 		(void) printf(gettext("action: Replace the device using "
4057 		    "'zpool replace'.\n"));
4058 		break;
4059 
4060 	case ZPOOL_STATUS_CORRUPT_LABEL_NR:
4061 		(void) printf(gettext("status: One or more devices could not "
4062 		    "be used because the label is missing \n\tor invalid.  "
4063 		    "There are insufficient replicas for the pool to "
4064 		    "continue\n\tfunctioning.\n"));
4065 		zpool_explain_recover(zpool_get_handle(zhp),
4066 		    zpool_get_name(zhp), reason, config);
4067 		break;
4068 
4069 	case ZPOOL_STATUS_FAILING_DEV:
4070 		(void) printf(gettext("status: One or more devices has "
4071 		    "experienced an unrecoverable error.  An\n\tattempt was "
4072 		    "made to correct the error.  Applications are "
4073 		    "unaffected.\n"));
4074 		(void) printf(gettext("action: Determine if the device needs "
4075 		    "to be replaced, and clear the errors\n\tusing "
4076 		    "'zpool clear' or replace the device with 'zpool "
4077 		    "replace'.\n"));
4078 		break;
4079 
4080 	case ZPOOL_STATUS_OFFLINE_DEV:
4081 		(void) printf(gettext("status: One or more devices has "
4082 		    "been taken offline by the administrator.\n\tSufficient "
4083 		    "replicas exist for the pool to continue functioning in "
4084 		    "a\n\tdegraded state.\n"));
4085 		(void) printf(gettext("action: Online the device using "
4086 		    "'zpool online' or replace the device with\n\t'zpool "
4087 		    "replace'.\n"));
4088 		break;
4089 
4090 	case ZPOOL_STATUS_REMOVED_DEV:
4091 		(void) printf(gettext("status: One or more devices has "
4092 		    "been removed by the administrator.\n\tSufficient "
4093 		    "replicas exist for the pool to continue functioning in "
4094 		    "a\n\tdegraded state.\n"));
4095 		(void) printf(gettext("action: Online the device using "
4096 		    "'zpool online' or replace the device with\n\t'zpool "
4097 		    "replace'.\n"));
4098 		break;
4099 
4100 	case ZPOOL_STATUS_RESILVERING:
4101 		(void) printf(gettext("status: One or more devices is "
4102 		    "currently being resilvered.  The pool will\n\tcontinue "
4103 		    "to function, possibly in a degraded state.\n"));
4104 		(void) printf(gettext("action: Wait for the resilver to "
4105 		    "complete.\n"));
4106 		break;
4107 
4108 	case ZPOOL_STATUS_CORRUPT_DATA:
4109 		(void) printf(gettext("status: One or more devices has "
4110 		    "experienced an error resulting in data\n\tcorruption.  "
4111 		    "Applications may be affected.\n"));
4112 		(void) printf(gettext("action: Restore the file in question "
4113 		    "if possible.  Otherwise restore the\n\tentire pool from "
4114 		    "backup.\n"));
4115 		break;
4116 
4117 	case ZPOOL_STATUS_CORRUPT_POOL:
4118 		(void) printf(gettext("status: The pool metadata is corrupted "
4119 		    "and the pool cannot be opened.\n"));
4120 		zpool_explain_recover(zpool_get_handle(zhp),
4121 		    zpool_get_name(zhp), reason, config);
4122 		break;
4123 
4124 	case ZPOOL_STATUS_VERSION_OLDER:
4125 		(void) printf(gettext("status: The pool is formatted using a "
4126 		    "legacy on-disk format.  The pool can\n\tstill be used, "
4127 		    "but some features are unavailable.\n"));
4128 		(void) printf(gettext("action: Upgrade the pool using 'zpool "
4129 		    "upgrade'.  Once this is done, the\n\tpool will no longer "
4130 		    "be accessible on software that does not support feature\n"
4131 		    "\tflags.\n"));
4132 		break;
4133 
4134 	case ZPOOL_STATUS_VERSION_NEWER:
4135 		(void) printf(gettext("status: The pool has been upgraded to a "
4136 		    "newer, incompatible on-disk version.\n\tThe pool cannot "
4137 		    "be accessed on this system.\n"));
4138 		(void) printf(gettext("action: Access the pool from a system "
4139 		    "running more recent software, or\n\trestore the pool from "
4140 		    "backup.\n"));
4141 		break;
4142 
4143 	case ZPOOL_STATUS_FEAT_DISABLED:
4144 		(void) printf(gettext("status: Some supported features are not "
4145 		    "enabled on the pool. The pool can\n\tstill be used, but "
4146 		    "some features are unavailable.\n"));
4147 		(void) printf(gettext("action: Enable all features using "
4148 		    "'zpool upgrade'. Once this is done,\n\tthe pool may no "
4149 		    "longer be accessible by software that does not support\n\t"
4150 		    "the features. See zpool-features(5) for details.\n"));
4151 		break;
4152 
4153 	case ZPOOL_STATUS_UNSUP_FEAT_READ:
4154 		(void) printf(gettext("status: The pool cannot be accessed on "
4155 		    "this system because it uses the\n\tfollowing feature(s) "
4156 		    "not supported on this system:\n"));
4157 		zpool_print_unsup_feat(config);
4158 		(void) printf("\n");
4159 		(void) printf(gettext("action: Access the pool from a system "
4160 		    "that supports the required feature(s),\n\tor restore the "
4161 		    "pool from backup.\n"));
4162 		break;
4163 
4164 	case ZPOOL_STATUS_UNSUP_FEAT_WRITE:
4165 		(void) printf(gettext("status: The pool can only be accessed "
4166 		    "in read-only mode on this system. It\n\tcannot be "
4167 		    "accessed in read-write mode because it uses the "
4168 		    "following\n\tfeature(s) not supported on this system:\n"));
4169 		zpool_print_unsup_feat(config);
4170 		(void) printf("\n");
4171 		(void) printf(gettext("action: The pool cannot be accessed in "
4172 		    "read-write mode. Import the pool with\n"
4173 		    "\t\"-o readonly=on\", access the pool from a system that "
4174 		    "supports the\n\trequired feature(s), or restore the "
4175 		    "pool from backup.\n"));
4176 		break;
4177 
4178 	case ZPOOL_STATUS_FAULTED_DEV_R:
4179 		(void) printf(gettext("status: One or more devices are "
4180 		    "faulted in response to persistent errors.\n\tSufficient "
4181 		    "replicas exist for the pool to continue functioning "
4182 		    "in a\n\tdegraded state.\n"));
4183 		(void) printf(gettext("action: Replace the faulted device, "
4184 		    "or use 'zpool clear' to mark the device\n\trepaired.\n"));
4185 		break;
4186 
4187 	case ZPOOL_STATUS_FAULTED_DEV_NR:
4188 		(void) printf(gettext("status: One or more devices are "
4189 		    "faulted in response to persistent errors.  There are "
4190 		    "insufficient replicas for the pool to\n\tcontinue "
4191 		    "functioning.\n"));
4192 		(void) printf(gettext("action: Destroy and re-create the pool "
4193 		    "from a backup source.  Manually marking the device\n"
4194 		    "\trepaired using 'zpool clear' may allow some data "
4195 		    "to be recovered.\n"));
4196 		break;
4197 
4198 	case ZPOOL_STATUS_IO_FAILURE_WAIT:
4199 	case ZPOOL_STATUS_IO_FAILURE_CONTINUE:
4200 		(void) printf(gettext("status: One or more devices are "
4201 		    "faulted in response to IO failures.\n"));
4202 		(void) printf(gettext("action: Make sure the affected devices "
4203 		    "are connected, then run 'zpool clear'.\n"));
4204 		break;
4205 
4206 	case ZPOOL_STATUS_BAD_LOG:
4207 		(void) printf(gettext("status: An intent log record "
4208 		    "could not be read.\n"
4209 		    "\tWaiting for adminstrator intervention to fix the "
4210 		    "faulted pool.\n"));
4211 		(void) printf(gettext("action: Either restore the affected "
4212 		    "device(s) and run 'zpool online',\n"
4213 		    "\tor ignore the intent log records by running "
4214 		    "'zpool clear'.\n"));
4215 		break;
4216 
4217 	default:
4218 		/*
4219 		 * The remaining errors can't actually be generated, yet.
4220 		 */
4221 		assert(reason == ZPOOL_STATUS_OK);
4222 	}
4223 
4224 	if (msgid != NULL)
4225 		(void) printf(gettext("   see: http://illumos.org/msg/%s\n"),
4226 		    msgid);
4227 
4228 	if (config != NULL) {
4229 		int namewidth;
4230 		uint64_t nerr;
4231 		nvlist_t **spares, **l2cache;
4232 		uint_t nspares, nl2cache;
4233 		pool_scan_stat_t *ps = NULL;
4234 
4235 		(void) nvlist_lookup_uint64_array(nvroot,
4236 		    ZPOOL_CONFIG_SCAN_STATS, (uint64_t **)&ps, &c);
4237 		print_scan_status(ps);
4238 
4239 		namewidth = max_width(zhp, nvroot, 0, 0);
4240 		if (namewidth < 10)
4241 			namewidth = 10;
4242 
4243 		(void) printf(gettext("config:\n\n"));
4244 		(void) printf(gettext("\t%-*s  %-8s %5s %5s %5s\n"), namewidth,
4245 		    "NAME", "STATE", "READ", "WRITE", "CKSUM");
4246 		print_status_config(zhp, zpool_get_name(zhp), nvroot,
4247 		    namewidth, 0, B_FALSE);
4248 
4249 		if (num_logs(nvroot) > 0)
4250 			print_logs(zhp, nvroot, namewidth, B_TRUE);
4251 		if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_L2CACHE,
4252 		    &l2cache, &nl2cache) == 0)
4253 			print_l2cache(zhp, l2cache, nl2cache, namewidth);
4254 
4255 		if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES,
4256 		    &spares, &nspares) == 0)
4257 			print_spares(zhp, spares, nspares, namewidth);
4258 
4259 		if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_ERRCOUNT,
4260 		    &nerr) == 0) {
4261 			nvlist_t *nverrlist = NULL;
4262 
4263 			/*
4264 			 * If the approximate error count is small, get a
4265 			 * precise count by fetching the entire log and
4266 			 * uniquifying the results.
4267 			 */
4268 			if (nerr > 0 && nerr < 100 && !cbp->cb_verbose &&
4269 			    zpool_get_errlog(zhp, &nverrlist) == 0) {
4270 				nvpair_t *elem;
4271 
4272 				elem = NULL;
4273 				nerr = 0;
4274 				while ((elem = nvlist_next_nvpair(nverrlist,
4275 				    elem)) != NULL) {
4276 					nerr++;
4277 				}
4278 			}
4279 			nvlist_free(nverrlist);
4280 
4281 			(void) printf("\n");
4282 
4283 			if (nerr == 0)
4284 				(void) printf(gettext("errors: No known data "
4285 				    "errors\n"));
4286 			else if (!cbp->cb_verbose)
4287 				(void) printf(gettext("errors: %llu data "
4288 				    "errors, use '-v' for a list\n"),
4289 				    (u_longlong_t)nerr);
4290 			else
4291 				print_error_log(zhp);
4292 		}
4293 
4294 		if (cbp->cb_dedup_stats)
4295 			print_dedup_stats(config);
4296 	} else {
4297 		(void) printf(gettext("config: The configuration cannot be "
4298 		    "determined.\n"));
4299 	}
4300 
4301 	return (0);
4302 }
4303 
4304 /*
4305  * zpool status [-vx] [-T d|u] [pool] ... [interval [count]]
4306  *
4307  *	-v	Display complete error logs
4308  *	-x	Display only pools with potential problems
4309  *	-D	Display dedup status (undocumented)
4310  *	-T	Display a timestamp in date(1) or Unix format
4311  *
4312  * Describes the health status of all pools or some subset.
4313  */
4314 int
4315 zpool_do_status(int argc, char **argv)
4316 {
4317 	int c;
4318 	int ret;
4319 	unsigned long interval = 0, count = 0;
4320 	status_cbdata_t cb = { 0 };
4321 
4322 	/* check options */
4323 	while ((c = getopt(argc, argv, "vxDT:")) != -1) {
4324 		switch (c) {
4325 		case 'v':
4326 			cb.cb_verbose = B_TRUE;
4327 			break;
4328 		case 'x':
4329 			cb.cb_explain = B_TRUE;
4330 			break;
4331 		case 'D':
4332 			cb.cb_dedup_stats = B_TRUE;
4333 			break;
4334 		case 'T':
4335 			get_timestamp_arg(*optarg);
4336 			break;
4337 		case '?':
4338 			(void) fprintf(stderr, gettext("invalid option '%c'\n"),
4339 			    optopt);
4340 			usage(B_FALSE);
4341 		}
4342 	}
4343 
4344 	argc -= optind;
4345 	argv += optind;
4346 
4347 	get_interval_count(&argc, argv, &interval, &count);
4348 
4349 	if (argc == 0)
4350 		cb.cb_allpools = B_TRUE;
4351 
4352 	cb.cb_first = B_TRUE;
4353 
4354 	for (;;) {
4355 		if (timestamp_fmt != NODATE)
4356 			print_timestamp(timestamp_fmt);
4357 
4358 		ret = for_each_pool(argc, argv, B_TRUE, NULL,
4359 		    status_callback, &cb);
4360 
4361 		if (argc == 0 && cb.cb_count == 0)
4362 			(void) printf(gettext("no pools available\n"));
4363 		else if (cb.cb_explain && cb.cb_first && cb.cb_allpools)
4364 			(void) printf(gettext("all pools are healthy\n"));
4365 
4366 		if (ret != 0)
4367 			return (ret);
4368 
4369 		if (interval == 0)
4370 			break;
4371 
4372 		if (count != 0 && --count == 0)
4373 			break;
4374 
4375 		(void) sleep(interval);
4376 	}
4377 
4378 	return (0);
4379 }
4380 
4381 typedef struct upgrade_cbdata {
4382 	int	cb_first;
4383 	int	cb_argc;
4384 	uint64_t cb_version;
4385 	char	**cb_argv;
4386 } upgrade_cbdata_t;
4387 
4388 static int
4389 upgrade_version(zpool_handle_t *zhp, uint64_t version)
4390 {
4391 	int ret;
4392 	nvlist_t *config;
4393 	uint64_t oldversion;
4394 
4395 	config = zpool_get_config(zhp, NULL);
4396 	verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION,
4397 	    &oldversion) == 0);
4398 
4399 	assert(SPA_VERSION_IS_SUPPORTED(oldversion));
4400 	assert(oldversion < version);
4401 
4402 	ret = zpool_upgrade(zhp, version);
4403 	if (ret != 0)
4404 		return (ret);
4405 
4406 	if (version >= SPA_VERSION_FEATURES) {
4407 		(void) printf(gettext("Successfully upgraded "
4408 		    "'%s' from version %llu to feature flags.\n"),
4409 		    zpool_get_name(zhp), oldversion);
4410 	} else {
4411 		(void) printf(gettext("Successfully upgraded "
4412 		    "'%s' from version %llu to version %llu.\n"),
4413 		    zpool_get_name(zhp), oldversion, version);
4414 	}
4415 
4416 	return (0);
4417 }
4418 
4419 static int
4420 upgrade_enable_all(zpool_handle_t *zhp, int *countp)
4421 {
4422 	int i, ret, count;
4423 	boolean_t firstff = B_TRUE;
4424 	nvlist_t *enabled = zpool_get_features(zhp);
4425 
4426 	count = 0;
4427 	for (i = 0; i < SPA_FEATURES; i++) {
4428 		const char *fname = spa_feature_table[i].fi_uname;
4429 		const char *fguid = spa_feature_table[i].fi_guid;
4430 		if (!nvlist_exists(enabled, fguid)) {
4431 			char *propname;
4432 			verify(-1 != asprintf(&propname, "feature@%s", fname));
4433 			ret = zpool_set_prop(zhp, propname,
4434 			    ZFS_FEATURE_ENABLED);
4435 			if (ret != 0) {
4436 				free(propname);
4437 				return (ret);
4438 			}
4439 			count++;
4440 
4441 			if (firstff) {
4442 				(void) printf(gettext("Enabled the "
4443 				    "following features on '%s':\n"),
4444 				    zpool_get_name(zhp));
4445 				firstff = B_FALSE;
4446 			}
4447 			(void) printf(gettext("  %s\n"), fname);
4448 			free(propname);
4449 		}
4450 	}
4451 
4452 	if (countp != NULL)
4453 		*countp = count;
4454 	return (0);
4455 }
4456 
4457 static int
4458 upgrade_cb(zpool_handle_t *zhp, void *arg)
4459 {
4460 	upgrade_cbdata_t *cbp = arg;
4461 	nvlist_t *config;
4462 	uint64_t version;
4463 	boolean_t printnl = B_FALSE;
4464 	int ret;
4465 
4466 	config = zpool_get_config(zhp, NULL);
4467 	verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION,
4468 	    &version) == 0);
4469 
4470 	assert(SPA_VERSION_IS_SUPPORTED(version));
4471 
4472 	if (version < cbp->cb_version) {
4473 		cbp->cb_first = B_FALSE;
4474 		ret = upgrade_version(zhp, cbp->cb_version);
4475 		if (ret != 0)
4476 			return (ret);
4477 		printnl = B_TRUE;
4478 
4479 		/*
4480 		 * If they did "zpool upgrade -a", then we could
4481 		 * be doing ioctls to different pools.  We need
4482 		 * to log this history once to each pool, and bypass
4483 		 * the normal history logging that happens in main().
4484 		 */
4485 		(void) zpool_log_history(g_zfs, history_str);
4486 		log_history = B_FALSE;
4487 	}
4488 
4489 	if (cbp->cb_version >= SPA_VERSION_FEATURES) {
4490 		int count;
4491 		ret = upgrade_enable_all(zhp, &count);
4492 		if (ret != 0)
4493 			return (ret);
4494 
4495 		if (count > 0) {
4496 			cbp->cb_first = B_FALSE;
4497 			printnl = B_TRUE;
4498 		}
4499 	}
4500 
4501 	if (printnl) {
4502 		(void) printf(gettext("\n"));
4503 	}
4504 
4505 	return (0);
4506 }
4507 
4508 static int
4509 upgrade_list_older_cb(zpool_handle_t *zhp, void *arg)
4510 {
4511 	upgrade_cbdata_t *cbp = arg;
4512 	nvlist_t *config;
4513 	uint64_t version;
4514 
4515 	config = zpool_get_config(zhp, NULL);
4516 	verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION,
4517 	    &version) == 0);
4518 
4519 	assert(SPA_VERSION_IS_SUPPORTED(version));
4520 
4521 	if (version < SPA_VERSION_FEATURES) {
4522 		if (cbp->cb_first) {
4523 			(void) printf(gettext("The following pools are "
4524 			    "formatted with legacy version numbers and can\n"
4525 			    "be upgraded to use feature flags.  After "
4526 			    "being upgraded, these pools\nwill no "
4527 			    "longer be accessible by software that does not "
4528 			    "support feature\nflags.\n\n"));
4529 			(void) printf(gettext("VER  POOL\n"));
4530 			(void) printf(gettext("---  ------------\n"));
4531 			cbp->cb_first = B_FALSE;
4532 		}
4533 
4534 		(void) printf("%2llu   %s\n", (u_longlong_t)version,
4535 		    zpool_get_name(zhp));
4536 	}
4537 
4538 	return (0);
4539 }
4540 
4541 static int
4542 upgrade_list_disabled_cb(zpool_handle_t *zhp, void *arg)
4543 {
4544 	upgrade_cbdata_t *cbp = arg;
4545 	nvlist_t *config;
4546 	uint64_t version;
4547 
4548 	config = zpool_get_config(zhp, NULL);
4549 	verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION,
4550 	    &version) == 0);
4551 
4552 	if (version >= SPA_VERSION_FEATURES) {
4553 		int i;
4554 		boolean_t poolfirst = B_TRUE;
4555 		nvlist_t *enabled = zpool_get_features(zhp);
4556 
4557 		for (i = 0; i < SPA_FEATURES; i++) {
4558 			const char *fguid = spa_feature_table[i].fi_guid;
4559 			const char *fname = spa_feature_table[i].fi_uname;
4560 			if (!nvlist_exists(enabled, fguid)) {
4561 				if (cbp->cb_first) {
4562 					(void) printf(gettext("\nSome "
4563 					    "supported features are not "
4564 					    "enabled on the following pools. "
4565 					    "Once a\nfeature is enabled the "
4566 					    "pool may become incompatible with "
4567 					    "software\nthat does not support "
4568 					    "the feature. See "
4569 					    "zpool-features(5) for "
4570 					    "details.\n\n"));
4571 					(void) printf(gettext("POOL  "
4572 					    "FEATURE\n"));
4573 					(void) printf(gettext("------"
4574 					    "---------\n"));
4575 					cbp->cb_first = B_FALSE;
4576 				}
4577 
4578 				if (poolfirst) {
4579 					(void) printf(gettext("%s\n"),
4580 					    zpool_get_name(zhp));
4581 					poolfirst = B_FALSE;
4582 				}
4583 
4584 				(void) printf(gettext("      %s\n"), fname);
4585 			}
4586 		}
4587 	}
4588 
4589 	return (0);
4590 }
4591 
4592 /* ARGSUSED */
4593 static int
4594 upgrade_one(zpool_handle_t *zhp, void *data)
4595 {
4596 	boolean_t printnl = B_FALSE;
4597 	upgrade_cbdata_t *cbp = data;
4598 	uint64_t cur_version;
4599 	int ret;
4600 
4601 	if (strcmp("log", zpool_get_name(zhp)) == 0) {
4602 		(void) printf(gettext("'log' is now a reserved word\n"
4603 		    "Pool 'log' must be renamed using export and import"
4604 		    " to upgrade.\n"));
4605 		return (1);
4606 	}
4607 
4608 	cur_version = zpool_get_prop_int(zhp, ZPOOL_PROP_VERSION, NULL);
4609 	if (cur_version > cbp->cb_version) {
4610 		(void) printf(gettext("Pool '%s' is already formatted "
4611 		    "using more current version '%llu'.\n\n"),
4612 		    zpool_get_name(zhp), cur_version);
4613 		return (0);
4614 	}
4615 
4616 	if (cbp->cb_version != SPA_VERSION && cur_version == cbp->cb_version) {
4617 		(void) printf(gettext("Pool '%s' is already formatted "
4618 		    "using version %llu.\n\n"), zpool_get_name(zhp),
4619 		    cbp->cb_version);
4620 		return (0);
4621 	}
4622 
4623 	if (cur_version != cbp->cb_version) {
4624 		printnl = B_TRUE;
4625 		ret = upgrade_version(zhp, cbp->cb_version);
4626 		if (ret != 0)
4627 			return (ret);
4628 	}
4629 
4630 	if (cbp->cb_version >= SPA_VERSION_FEATURES) {
4631 		int count = 0;
4632 		ret = upgrade_enable_all(zhp, &count);
4633 		if (ret != 0)
4634 			return (ret);
4635 
4636 		if (count != 0) {
4637 			printnl = B_TRUE;
4638 		} else if (cur_version == SPA_VERSION) {
4639 			(void) printf(gettext("Pool '%s' already has all "
4640 			    "supported features enabled.\n"),
4641 			    zpool_get_name(zhp));
4642 		}
4643 	}
4644 
4645 	if (printnl) {
4646 		(void) printf(gettext("\n"));
4647 	}
4648 
4649 	return (0);
4650 }
4651 
4652 /*
4653  * zpool upgrade
4654  * zpool upgrade -v
4655  * zpool upgrade [-V version] <-a | pool ...>
4656  *
4657  * With no arguments, display downrev'd ZFS pool available for upgrade.
4658  * Individual pools can be upgraded by specifying the pool, and '-a' will
4659  * upgrade all pools.
4660  */
4661 int
4662 zpool_do_upgrade(int argc, char **argv)
4663 {
4664 	int c;
4665 	upgrade_cbdata_t cb = { 0 };
4666 	int ret = 0;
4667 	boolean_t showversions = B_FALSE;
4668 	boolean_t upgradeall = B_FALSE;
4669 	char *end;
4670 
4671 
4672 	/* check options */
4673 	while ((c = getopt(argc, argv, ":avV:")) != -1) {
4674 		switch (c) {
4675 		case 'a':
4676 			upgradeall = B_TRUE;
4677 			break;
4678 		case 'v':
4679 			showversions = B_TRUE;
4680 			break;
4681 		case 'V':
4682 			cb.cb_version = strtoll(optarg, &end, 10);
4683 			if (*end != '\0' ||
4684 			    !SPA_VERSION_IS_SUPPORTED(cb.cb_version)) {
4685 				(void) fprintf(stderr,
4686 				    gettext("invalid version '%s'\n"), optarg);
4687 				usage(B_FALSE);
4688 			}
4689 			break;
4690 		case ':':
4691 			(void) fprintf(stderr, gettext("missing argument for "
4692 			    "'%c' option\n"), optopt);
4693 			usage(B_FALSE);
4694 			break;
4695 		case '?':
4696 			(void) fprintf(stderr, gettext("invalid option '%c'\n"),
4697 			    optopt);
4698 			usage(B_FALSE);
4699 		}
4700 	}
4701 
4702 	cb.cb_argc = argc;
4703 	cb.cb_argv = argv;
4704 	argc -= optind;
4705 	argv += optind;
4706 
4707 	if (cb.cb_version == 0) {
4708 		cb.cb_version = SPA_VERSION;
4709 	} else if (!upgradeall && argc == 0) {
4710 		(void) fprintf(stderr, gettext("-V option is "
4711 		    "incompatible with other arguments\n"));
4712 		usage(B_FALSE);
4713 	}
4714 
4715 	if (showversions) {
4716 		if (upgradeall || argc != 0) {
4717 			(void) fprintf(stderr, gettext("-v option is "
4718 			    "incompatible with other arguments\n"));
4719 			usage(B_FALSE);
4720 		}
4721 	} else if (upgradeall) {
4722 		if (argc != 0) {
4723 			(void) fprintf(stderr, gettext("-a option should not "
4724 			    "be used along with a pool name\n"));
4725 			usage(B_FALSE);
4726 		}
4727 	}
4728 
4729 	(void) printf(gettext("This system supports ZFS pool feature "
4730 	    "flags.\n\n"));
4731 	if (showversions) {
4732 		int i;
4733 
4734 		(void) printf(gettext("The following features are "
4735 		    "supported:\n\n"));
4736 		(void) printf(gettext("FEAT DESCRIPTION\n"));
4737 		(void) printf("----------------------------------------------"
4738 		    "---------------\n");
4739 		for (i = 0; i < SPA_FEATURES; i++) {
4740 			zfeature_info_t *fi = &spa_feature_table[i];
4741 			const char *ro = fi->fi_can_readonly ?
4742 			    " (read-only compatible)" : "";
4743 
4744 			(void) printf("%-37s%s\n", fi->fi_uname, ro);
4745 			(void) printf("     %s\n", fi->fi_desc);
4746 		}
4747 		(void) printf("\n");
4748 
4749 		(void) printf(gettext("The following legacy versions are also "
4750 		    "supported:\n\n"));
4751 		(void) printf(gettext("VER  DESCRIPTION\n"));
4752 		(void) printf("---  -----------------------------------------"
4753 		    "---------------\n");
4754 		(void) printf(gettext(" 1   Initial ZFS version\n"));
4755 		(void) printf(gettext(" 2   Ditto blocks "
4756 		    "(replicated metadata)\n"));
4757 		(void) printf(gettext(" 3   Hot spares and double parity "
4758 		    "RAID-Z\n"));
4759 		(void) printf(gettext(" 4   zpool history\n"));
4760 		(void) printf(gettext(" 5   Compression using the gzip "
4761 		    "algorithm\n"));
4762 		(void) printf(gettext(" 6   bootfs pool property\n"));
4763 		(void) printf(gettext(" 7   Separate intent log devices\n"));
4764 		(void) printf(gettext(" 8   Delegated administration\n"));
4765 		(void) printf(gettext(" 9   refquota and refreservation "
4766 		    "properties\n"));
4767 		(void) printf(gettext(" 10  Cache devices\n"));
4768 		(void) printf(gettext(" 11  Improved scrub performance\n"));
4769 		(void) printf(gettext(" 12  Snapshot properties\n"));
4770 		(void) printf(gettext(" 13  snapused property\n"));
4771 		(void) printf(gettext(" 14  passthrough-x aclinherit\n"));
4772 		(void) printf(gettext(" 15  user/group space accounting\n"));
4773 		(void) printf(gettext(" 16  stmf property support\n"));
4774 		(void) printf(gettext(" 17  Triple-parity RAID-Z\n"));
4775 		(void) printf(gettext(" 18  Snapshot user holds\n"));
4776 		(void) printf(gettext(" 19  Log device removal\n"));
4777 		(void) printf(gettext(" 20  Compression using zle "
4778 		    "(zero-length encoding)\n"));
4779 		(void) printf(gettext(" 21  Deduplication\n"));
4780 		(void) printf(gettext(" 22  Received properties\n"));
4781 		(void) printf(gettext(" 23  Slim ZIL\n"));
4782 		(void) printf(gettext(" 24  System attributes\n"));
4783 		(void) printf(gettext(" 25  Improved scrub stats\n"));
4784 		(void) printf(gettext(" 26  Improved snapshot deletion "
4785 		    "performance\n"));
4786 		(void) printf(gettext(" 27  Improved snapshot creation "
4787 		    "performance\n"));
4788 		(void) printf(gettext(" 28  Multiple vdev replacements\n"));
4789 		(void) printf(gettext("\nFor more information on a particular "
4790 		    "version, including supported releases,\n"));
4791 		(void) printf(gettext("see the ZFS Administration Guide.\n\n"));
4792 	} else if (argc == 0 && upgradeall) {
4793 		cb.cb_first = B_TRUE;
4794 		ret = zpool_iter(g_zfs, upgrade_cb, &cb);
4795 		if (ret == 0 && cb.cb_first) {
4796 			if (cb.cb_version == SPA_VERSION) {
4797 				(void) printf(gettext("All pools are already "
4798 				    "formatted using feature flags.\n\n"));
4799 				(void) printf(gettext("Every feature flags "
4800 				    "pool already has all supported features "
4801 				    "enabled.\n"));
4802 			} else {
4803 				(void) printf(gettext("All pools are already "
4804 				    "formatted with version %llu or higher.\n"),
4805 				    cb.cb_version);
4806 			}
4807 		}
4808 	} else if (argc == 0) {
4809 		cb.cb_first = B_TRUE;
4810 		ret = zpool_iter(g_zfs, upgrade_list_older_cb, &cb);
4811 		assert(ret == 0);
4812 
4813 		if (cb.cb_first) {
4814 			(void) printf(gettext("All pools are formatted "
4815 			    "using feature flags.\n\n"));
4816 		} else {
4817 			(void) printf(gettext("\nUse 'zpool upgrade -v' "
4818 			    "for a list of available legacy versions.\n"));
4819 		}
4820 
4821 		cb.cb_first = B_TRUE;
4822 		ret = zpool_iter(g_zfs, upgrade_list_disabled_cb, &cb);
4823 		assert(ret == 0);
4824 
4825 		if (cb.cb_first) {
4826 			(void) printf(gettext("Every feature flags pool has "
4827 			    "all supported features enabled.\n"));
4828 		} else {
4829 			(void) printf(gettext("\n"));
4830 		}
4831 	} else {
4832 		ret = for_each_pool(argc, argv, B_FALSE, NULL,
4833 		    upgrade_one, &cb);
4834 	}
4835 
4836 	return (ret);
4837 }
4838 
4839 typedef struct hist_cbdata {
4840 	boolean_t first;
4841 	boolean_t longfmt;
4842 	boolean_t internal;
4843 } hist_cbdata_t;
4844 
4845 /*
4846  * Print out the command history for a specific pool.
4847  */
4848 static int
4849 get_history_one(zpool_handle_t *zhp, void *data)
4850 {
4851 	nvlist_t *nvhis;
4852 	nvlist_t **records;
4853 	uint_t numrecords;
4854 	int ret, i;
4855 	hist_cbdata_t *cb = (hist_cbdata_t *)data;
4856 
4857 	cb->first = B_FALSE;
4858 
4859 	(void) printf(gettext("History for '%s':\n"), zpool_get_name(zhp));
4860 
4861 	if ((ret = zpool_get_history(zhp, &nvhis)) != 0)
4862 		return (ret);
4863 
4864 	verify(nvlist_lookup_nvlist_array(nvhis, ZPOOL_HIST_RECORD,
4865 	    &records, &numrecords) == 0);
4866 	for (i = 0; i < numrecords; i++) {
4867 		nvlist_t *rec = records[i];
4868 		char tbuf[30] = "";
4869 
4870 		if (nvlist_exists(rec, ZPOOL_HIST_TIME)) {
4871 			time_t tsec;
4872 			struct tm t;
4873 
4874 			tsec = fnvlist_lookup_uint64(records[i],
4875 			    ZPOOL_HIST_TIME);
4876 			(void) localtime_r(&tsec, &t);
4877 			(void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t);
4878 		}
4879 
4880 		if (nvlist_exists(rec, ZPOOL_HIST_CMD)) {
4881 			(void) printf("%s %s", tbuf,
4882 			    fnvlist_lookup_string(rec, ZPOOL_HIST_CMD));
4883 		} else if (nvlist_exists(rec, ZPOOL_HIST_INT_EVENT)) {
4884 			int ievent =
4885 			    fnvlist_lookup_uint64(rec, ZPOOL_HIST_INT_EVENT);
4886 			if (!cb->internal)
4887 				continue;
4888 			if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS) {
4889 				(void) printf("%s unrecognized record:\n",
4890 				    tbuf);
4891 				dump_nvlist(rec, 4);
4892 				continue;
4893 			}
4894 			(void) printf("%s [internal %s txg:%lld] %s", tbuf,
4895 			    zfs_history_event_names[ievent],
4896 			    fnvlist_lookup_uint64(rec, ZPOOL_HIST_TXG),
4897 			    fnvlist_lookup_string(rec, ZPOOL_HIST_INT_STR));
4898 		} else if (nvlist_exists(rec, ZPOOL_HIST_INT_NAME)) {
4899 			if (!cb->internal)
4900 				continue;
4901 			(void) printf("%s [txg:%lld] %s", tbuf,
4902 			    fnvlist_lookup_uint64(rec, ZPOOL_HIST_TXG),
4903 			    fnvlist_lookup_string(rec, ZPOOL_HIST_INT_NAME));
4904 			if (nvlist_exists(rec, ZPOOL_HIST_DSNAME)) {
4905 				(void) printf(" %s (%llu)",
4906 				    fnvlist_lookup_string(rec,
4907 				    ZPOOL_HIST_DSNAME),
4908 				    fnvlist_lookup_uint64(rec,
4909 				    ZPOOL_HIST_DSID));
4910 			}
4911 			(void) printf(" %s", fnvlist_lookup_string(rec,
4912 			    ZPOOL_HIST_INT_STR));
4913 		} else if (nvlist_exists(rec, ZPOOL_HIST_IOCTL)) {
4914 			if (!cb->internal)
4915 				continue;
4916 			(void) printf("%s ioctl %s\n", tbuf,
4917 			    fnvlist_lookup_string(rec, ZPOOL_HIST_IOCTL));
4918 			if (nvlist_exists(rec, ZPOOL_HIST_INPUT_NVL)) {
4919 				(void) printf("    input:\n");
4920 				dump_nvlist(fnvlist_lookup_nvlist(rec,
4921 				    ZPOOL_HIST_INPUT_NVL), 8);
4922 			}
4923 			if (nvlist_exists(rec, ZPOOL_HIST_OUTPUT_NVL)) {
4924 				(void) printf("    output:\n");
4925 				dump_nvlist(fnvlist_lookup_nvlist(rec,
4926 				    ZPOOL_HIST_OUTPUT_NVL), 8);
4927 			}
4928 		} else {
4929 			if (!cb->internal)
4930 				continue;
4931 			(void) printf("%s unrecognized record:\n", tbuf);
4932 			dump_nvlist(rec, 4);
4933 		}
4934 
4935 		if (!cb->longfmt) {
4936 			(void) printf("\n");
4937 			continue;
4938 		}
4939 		(void) printf(" [");
4940 		if (nvlist_exists(rec, ZPOOL_HIST_WHO)) {
4941 			uid_t who = fnvlist_lookup_uint64(rec, ZPOOL_HIST_WHO);
4942 			struct passwd *pwd = getpwuid(who);
4943 			(void) printf("user %d ", (int)who);
4944 			if (pwd != NULL)
4945 				(void) printf("(%s) ", pwd->pw_name);
4946 		}
4947 		if (nvlist_exists(rec, ZPOOL_HIST_HOST)) {
4948 			(void) printf("on %s",
4949 			    fnvlist_lookup_string(rec, ZPOOL_HIST_HOST));
4950 		}
4951 		if (nvlist_exists(rec, ZPOOL_HIST_ZONE)) {
4952 			(void) printf(":%s",
4953 			    fnvlist_lookup_string(rec, ZPOOL_HIST_ZONE));
4954 		}
4955 		(void) printf("]");
4956 		(void) printf("\n");
4957 	}
4958 	(void) printf("\n");
4959 	nvlist_free(nvhis);
4960 
4961 	return (ret);
4962 }
4963 
4964 /*
4965  * zpool history <pool>
4966  *
4967  * Displays the history of commands that modified pools.
4968  */
4969 int
4970 zpool_do_history(int argc, char **argv)
4971 {
4972 	hist_cbdata_t cbdata = { 0 };
4973 	int ret;
4974 	int c;
4975 
4976 	cbdata.first = B_TRUE;
4977 	/* check options */
4978 	while ((c = getopt(argc, argv, "li")) != -1) {
4979 		switch (c) {
4980 		case 'l':
4981 			cbdata.longfmt = B_TRUE;
4982 			break;
4983 		case 'i':
4984 			cbdata.internal = B_TRUE;
4985 			break;
4986 		case '?':
4987 			(void) fprintf(stderr, gettext("invalid option '%c'\n"),
4988 			    optopt);
4989 			usage(B_FALSE);
4990 		}
4991 	}
4992 	argc -= optind;
4993 	argv += optind;
4994 
4995 	ret = for_each_pool(argc, argv, B_FALSE,  NULL, get_history_one,
4996 	    &cbdata);
4997 
4998 	if (argc == 0 && cbdata.first == B_TRUE) {
4999 		(void) printf(gettext("no pools available\n"));
5000 		return (0);
5001 	}
5002 
5003 	return (ret);
5004 }
5005 
5006 static int
5007 get_callback(zpool_handle_t *zhp, void *data)
5008 {
5009 	zprop_get_cbdata_t *cbp = (zprop_get_cbdata_t *)data;
5010 	char value[MAXNAMELEN];
5011 	zprop_source_t srctype;
5012 	zprop_list_t *pl;
5013 
5014 	for (pl = cbp->cb_proplist; pl != NULL; pl = pl->pl_next) {
5015 
5016 		/*
5017 		 * Skip the special fake placeholder. This will also skip
5018 		 * over the name property when 'all' is specified.
5019 		 */
5020 		if (pl->pl_prop == ZPOOL_PROP_NAME &&
5021 		    pl == cbp->cb_proplist)
5022 			continue;
5023 
5024 		if (pl->pl_prop == ZPROP_INVAL &&
5025 		    (zpool_prop_feature(pl->pl_user_prop) ||
5026 		    zpool_prop_unsupported(pl->pl_user_prop))) {
5027 			srctype = ZPROP_SRC_LOCAL;
5028 
5029 			if (zpool_prop_get_feature(zhp, pl->pl_user_prop,
5030 			    value, sizeof (value)) == 0) {
5031 				zprop_print_one_property(zpool_get_name(zhp),
5032 				    cbp, pl->pl_user_prop, value, srctype,
5033 				    NULL, NULL);
5034 			}
5035 		} else {
5036 			if (zpool_get_prop(zhp, pl->pl_prop, value,
5037 			    sizeof (value), &srctype, cbp->cb_literal) != 0)
5038 				continue;
5039 
5040 			zprop_print_one_property(zpool_get_name(zhp), cbp,
5041 			    zpool_prop_to_name(pl->pl_prop), value, srctype,
5042 			    NULL, NULL);
5043 		}
5044 	}
5045 	return (0);
5046 }
5047 
5048 /*
5049  * zpool get [-Hp] [-o "all" | field[,...]] <"all" | property[,...]> <pool> ...
5050  *
5051  *	-H	Scripted mode.  Don't display headers, and separate properties
5052  *		by a single tab.
5053  *	-o	List of columns to display.  Defaults to
5054  *		"name,property,value,source".
5055  * 	-p	Diplay values in parsable (exact) format.
5056  *
5057  * Get properties of pools in the system. Output space statistics
5058  * for each one as well as other attributes.
5059  */
5060 int
5061 zpool_do_get(int argc, char **argv)
5062 {
5063 	zprop_get_cbdata_t cb = { 0 };
5064 	zprop_list_t fake_name = { 0 };
5065 	int ret;
5066 	int c, i;
5067 	char *value;
5068 
5069 	cb.cb_first = B_TRUE;
5070 
5071 	/*
5072 	 * Set up default columns and sources.
5073 	 */
5074 	cb.cb_sources = ZPROP_SRC_ALL;
5075 	cb.cb_columns[0] = GET_COL_NAME;
5076 	cb.cb_columns[1] = GET_COL_PROPERTY;
5077 	cb.cb_columns[2] = GET_COL_VALUE;
5078 	cb.cb_columns[3] = GET_COL_SOURCE;
5079 	cb.cb_type = ZFS_TYPE_POOL;
5080 
5081 	/* check options */
5082 	while ((c = getopt(argc, argv, ":Hpo:")) != -1) {
5083 		switch (c) {
5084 		case 'p':
5085 			cb.cb_literal = B_TRUE;
5086 			break;
5087 		case 'H':
5088 			cb.cb_scripted = B_TRUE;
5089 			break;
5090 		case 'o':
5091 			bzero(&cb.cb_columns, sizeof (cb.cb_columns));
5092 			i = 0;
5093 			while (*optarg != '\0') {
5094 				static char *col_subopts[] =
5095 				{ "name", "property", "value", "source",
5096 				"all", NULL };
5097 
5098 				if (i == ZFS_GET_NCOLS) {
5099 					(void) fprintf(stderr, gettext("too "
5100 					"many fields given to -o "
5101 					"option\n"));
5102 					usage(B_FALSE);
5103 				}
5104 
5105 				switch (getsubopt(&optarg, col_subopts,
5106 				    &value)) {
5107 				case 0:
5108 					cb.cb_columns[i++] = GET_COL_NAME;
5109 					break;
5110 				case 1:
5111 					cb.cb_columns[i++] = GET_COL_PROPERTY;
5112 					break;
5113 				case 2:
5114 					cb.cb_columns[i++] = GET_COL_VALUE;
5115 					break;
5116 				case 3:
5117 					cb.cb_columns[i++] = GET_COL_SOURCE;
5118 					break;
5119 				case 4:
5120 					if (i > 0) {
5121 						(void) fprintf(stderr,
5122 						    gettext("\"all\" conflicts "
5123 						    "with specific fields "
5124 						    "given to -o option\n"));
5125 						usage(B_FALSE);
5126 					}
5127 					cb.cb_columns[0] = GET_COL_NAME;
5128 					cb.cb_columns[1] = GET_COL_PROPERTY;
5129 					cb.cb_columns[2] = GET_COL_VALUE;
5130 					cb.cb_columns[3] = GET_COL_SOURCE;
5131 					i = ZFS_GET_NCOLS;
5132 					break;
5133 				default:
5134 					(void) fprintf(stderr,
5135 					    gettext("invalid column name "
5136 					    "'%s'\n"), value);
5137 					usage(B_FALSE);
5138 				}
5139 			}
5140 			break;
5141 		case '?':
5142 			(void) fprintf(stderr, gettext("invalid option '%c'\n"),
5143 			    optopt);
5144 			usage(B_FALSE);
5145 		}
5146 	}
5147 
5148 	argc -= optind;
5149 	argv += optind;
5150 
5151 	if (argc < 1) {
5152 		(void) fprintf(stderr, gettext("missing property "
5153 		    "argument\n"));
5154 		usage(B_FALSE);
5155 	}
5156 
5157 	if (zprop_get_list(g_zfs, argv[0], &cb.cb_proplist,
5158 	    ZFS_TYPE_POOL) != 0)
5159 		usage(B_FALSE);
5160 
5161 	argc--;
5162 	argv++;
5163 
5164 	if (cb.cb_proplist != NULL) {
5165 		fake_name.pl_prop = ZPOOL_PROP_NAME;
5166 		fake_name.pl_width = strlen(gettext("NAME"));
5167 		fake_name.pl_next = cb.cb_proplist;
5168 		cb.cb_proplist = &fake_name;
5169 	}
5170 
5171 	ret = for_each_pool(argc, argv, B_TRUE, &cb.cb_proplist,
5172 	    get_callback, &cb);
5173 
5174 	if (cb.cb_proplist == &fake_name)
5175 		zprop_free_list(fake_name.pl_next);
5176 	else
5177 		zprop_free_list(cb.cb_proplist);
5178 
5179 	return (ret);
5180 }
5181 
5182 typedef struct set_cbdata {
5183 	char *cb_propname;
5184 	char *cb_value;
5185 	boolean_t cb_any_successful;
5186 } set_cbdata_t;
5187 
5188 int
5189 set_callback(zpool_handle_t *zhp, void *data)
5190 {
5191 	int error;
5192 	set_cbdata_t *cb = (set_cbdata_t *)data;
5193 
5194 	error = zpool_set_prop(zhp, cb->cb_propname, cb->cb_value);
5195 
5196 	if (!error)
5197 		cb->cb_any_successful = B_TRUE;
5198 
5199 	return (error);
5200 }
5201 
5202 int
5203 zpool_do_set(int argc, char **argv)
5204 {
5205 	set_cbdata_t cb = { 0 };
5206 	int error;
5207 
5208 	if (argc > 1 && argv[1][0] == '-') {
5209 		(void) fprintf(stderr, gettext("invalid option '%c'\n"),
5210 		    argv[1][1]);
5211 		usage(B_FALSE);
5212 	}
5213 
5214 	if (argc < 2) {
5215 		(void) fprintf(stderr, gettext("missing property=value "
5216 		    "argument\n"));
5217 		usage(B_FALSE);
5218 	}
5219 
5220 	if (argc < 3) {
5221 		(void) fprintf(stderr, gettext("missing pool name\n"));
5222 		usage(B_FALSE);
5223 	}
5224 
5225 	if (argc > 3) {
5226 		(void) fprintf(stderr, gettext("too many pool names\n"));
5227 		usage(B_FALSE);
5228 	}
5229 
5230 	cb.cb_propname = argv[1];
5231 	cb.cb_value = strchr(cb.cb_propname, '=');
5232 	if (cb.cb_value == NULL) {
5233 		(void) fprintf(stderr, gettext("missing value in "
5234 		    "property=value argument\n"));
5235 		usage(B_FALSE);
5236 	}
5237 
5238 	*(cb.cb_value) = '\0';
5239 	cb.cb_value++;
5240 
5241 	error = for_each_pool(argc - 2, argv + 2, B_TRUE, NULL,
5242 	    set_callback, &cb);
5243 
5244 	return (error);
5245 }
5246 
5247 static int
5248 find_command_idx(char *command, int *idx)
5249 {
5250 	int i;
5251 
5252 	for (i = 0; i < NCOMMAND; i++) {
5253 		if (command_table[i].name == NULL)
5254 			continue;
5255 
5256 		if (strcmp(command, command_table[i].name) == 0) {
5257 			*idx = i;
5258 			return (0);
5259 		}
5260 	}
5261 	return (1);
5262 }
5263 
5264 int
5265 main(int argc, char **argv)
5266 {
5267 	int ret;
5268 	int i;
5269 	char *cmdname;
5270 
5271 	(void) setlocale(LC_ALL, "");
5272 	(void) textdomain(TEXT_DOMAIN);
5273 
5274 	if ((g_zfs = libzfs_init()) == NULL) {
5275 		(void) fprintf(stderr, gettext("internal error: failed to "
5276 		    "initialize ZFS library\n"));
5277 		return (1);
5278 	}
5279 
5280 	libzfs_print_on_error(g_zfs, B_TRUE);
5281 
5282 	opterr = 0;
5283 
5284 	/*
5285 	 * Make sure the user has specified some command.
5286 	 */
5287 	if (argc < 2) {
5288 		(void) fprintf(stderr, gettext("missing command\n"));
5289 		usage(B_FALSE);
5290 	}
5291 
5292 	cmdname = argv[1];
5293 
5294 	/*
5295 	 * Special case '-?'
5296 	 */
5297 	if (strcmp(cmdname, "-?") == 0)
5298 		usage(B_TRUE);
5299 
5300 	zfs_save_arguments(argc, argv, history_str, sizeof (history_str));
5301 
5302 	/*
5303 	 * Run the appropriate command.
5304 	 */
5305 	if (find_command_idx(cmdname, &i) == 0) {
5306 		current_command = &command_table[i];
5307 		ret = command_table[i].func(argc - 1, argv + 1);
5308 	} else if (strchr(cmdname, '=')) {
5309 		verify(find_command_idx("set", &i) == 0);
5310 		current_command = &command_table[i];
5311 		ret = command_table[i].func(argc, argv);
5312 	} else if (strcmp(cmdname, "freeze") == 0 && argc == 3) {
5313 		/*
5314 		 * 'freeze' is a vile debugging abomination, so we treat
5315 		 * it as such.
5316 		 */
5317 		char buf[16384];
5318 		int fd = open(ZFS_DEV, O_RDWR);
5319 		(void) strcpy((void *)buf, argv[2]);
5320 		return (!!ioctl(fd, ZFS_IOC_POOL_FREEZE, buf));
5321 	} else {
5322 		(void) fprintf(stderr, gettext("unrecognized "
5323 		    "command '%s'\n"), cmdname);
5324 		usage(B_FALSE);
5325 	}
5326 
5327 	if (ret == 0 && log_history)
5328 		(void) zpool_log_history(g_zfs, history_str);
5329 
5330 	libzfs_fini(g_zfs);
5331 
5332 	/*
5333 	 * The 'ZFS_ABORT' environment variable causes us to dump core on exit
5334 	 * for the purposes of running ::findleaks.
5335 	 */
5336 	if (getenv("ZFS_ABORT") != NULL) {
5337 		(void) printf("dumping core by request\n");
5338 		abort();
5339 	}
5340 
5341 	return (ret);
5342 }
5343