xref: /freebsd/sys/contrib/openzfs/cmd/zpool/zpool_main.c (revision 9bc300465e48e19d794d88d0c158a2adb92c7197)
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 https://opensource.org/licenses/CDDL-1.0.
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, 2024 by Delphix. All rights reserved.
26  * Copyright (c) 2012 by Frederik Wessels. All rights reserved.
27  * Copyright (c) 2012 by Cyril Plisko. All rights reserved.
28  * Copyright (c) 2013 by Prasad Joshi (sTec). All rights reserved.
29  * Copyright 2016 Igor Kozhukhov <ikozhukhov@gmail.com>.
30  * Copyright (c) 2017 Datto Inc.
31  * Copyright (c) 2017 Open-E, Inc. All Rights Reserved.
32  * Copyright (c) 2017, Intel Corporation.
33  * Copyright (c) 2019, loli10K <ezomori.nozomu@gmail.com>
34  * Copyright (c) 2021, Colm Buckley <colm@tuatha.org>
35  * Copyright (c) 2021, Klara Inc.
36  * Copyright [2021] Hewlett Packard Enterprise Development LP
37  */
38 
39 #include <assert.h>
40 #include <ctype.h>
41 #include <dirent.h>
42 #include <errno.h>
43 #include <fcntl.h>
44 #include <getopt.h>
45 #include <libgen.h>
46 #include <libintl.h>
47 #include <libuutil.h>
48 #include <locale.h>
49 #include <pthread.h>
50 #include <stdio.h>
51 #include <stdlib.h>
52 #include <string.h>
53 #include <thread_pool.h>
54 #include <time.h>
55 #include <unistd.h>
56 #include <pwd.h>
57 #include <zone.h>
58 #include <sys/wait.h>
59 #include <zfs_prop.h>
60 #include <sys/fs/zfs.h>
61 #include <sys/stat.h>
62 #include <sys/systeminfo.h>
63 #include <sys/fm/fs/zfs.h>
64 #include <sys/fm/util.h>
65 #include <sys/fm/protocol.h>
66 #include <sys/zfs_ioctl.h>
67 #include <sys/mount.h>
68 #include <sys/sysmacros.h>
69 
70 #include <math.h>
71 
72 #include <libzfs.h>
73 #include <libzutil.h>
74 
75 #include "zpool_util.h"
76 #include "zfs_comutil.h"
77 #include "zfeature_common.h"
78 
79 #include "statcommon.h"
80 
81 libzfs_handle_t *g_zfs;
82 
83 static int mount_tp_nthr = 512;  /* tpool threads for multi-threaded mounting */
84 
85 static int zpool_do_create(int, char **);
86 static int zpool_do_destroy(int, char **);
87 
88 static int zpool_do_add(int, char **);
89 static int zpool_do_remove(int, char **);
90 static int zpool_do_labelclear(int, char **);
91 
92 static int zpool_do_checkpoint(int, char **);
93 
94 static int zpool_do_list(int, char **);
95 static int zpool_do_iostat(int, char **);
96 static int zpool_do_status(int, char **);
97 
98 static int zpool_do_online(int, char **);
99 static int zpool_do_offline(int, char **);
100 static int zpool_do_clear(int, char **);
101 static int zpool_do_reopen(int, char **);
102 
103 static int zpool_do_reguid(int, char **);
104 
105 static int zpool_do_attach(int, char **);
106 static int zpool_do_detach(int, char **);
107 static int zpool_do_replace(int, char **);
108 static int zpool_do_split(int, char **);
109 
110 static int zpool_do_initialize(int, char **);
111 static int zpool_do_scrub(int, char **);
112 static int zpool_do_resilver(int, char **);
113 static int zpool_do_trim(int, char **);
114 
115 static int zpool_do_import(int, char **);
116 static int zpool_do_export(int, char **);
117 
118 static int zpool_do_upgrade(int, char **);
119 
120 static int zpool_do_history(int, char **);
121 static int zpool_do_events(int, char **);
122 
123 static int zpool_do_get(int, char **);
124 static int zpool_do_set(int, char **);
125 
126 static int zpool_do_sync(int, char **);
127 
128 static int zpool_do_version(int, char **);
129 
130 static int zpool_do_wait(int, char **);
131 
132 static int zpool_do_help(int argc, char **argv);
133 
134 static zpool_compat_status_t zpool_do_load_compat(
135     const char *, boolean_t *);
136 
137 enum zpool_options {
138 	ZPOOL_OPTION_POWER = 1024,
139 	ZPOOL_OPTION_ALLOW_INUSE,
140 	ZPOOL_OPTION_ALLOW_REPLICATION_MISMATCH,
141 	ZPOOL_OPTION_ALLOW_ASHIFT_MISMATCH
142 };
143 
144 /*
145  * These libumem hooks provide a reasonable set of defaults for the allocator's
146  * debugging facilities.
147  */
148 
149 #ifdef DEBUG
150 const char *
151 _umem_debug_init(void)
152 {
153 	return ("default,verbose"); /* $UMEM_DEBUG setting */
154 }
155 
156 const char *
157 _umem_logging_init(void)
158 {
159 	return ("fail,contents"); /* $UMEM_LOGGING setting */
160 }
161 #endif
162 
163 typedef enum {
164 	HELP_ADD,
165 	HELP_ATTACH,
166 	HELP_CLEAR,
167 	HELP_CREATE,
168 	HELP_CHECKPOINT,
169 	HELP_DESTROY,
170 	HELP_DETACH,
171 	HELP_EXPORT,
172 	HELP_HISTORY,
173 	HELP_IMPORT,
174 	HELP_IOSTAT,
175 	HELP_LABELCLEAR,
176 	HELP_LIST,
177 	HELP_OFFLINE,
178 	HELP_ONLINE,
179 	HELP_REPLACE,
180 	HELP_REMOVE,
181 	HELP_INITIALIZE,
182 	HELP_SCRUB,
183 	HELP_RESILVER,
184 	HELP_TRIM,
185 	HELP_STATUS,
186 	HELP_UPGRADE,
187 	HELP_EVENTS,
188 	HELP_GET,
189 	HELP_SET,
190 	HELP_SPLIT,
191 	HELP_SYNC,
192 	HELP_REGUID,
193 	HELP_REOPEN,
194 	HELP_VERSION,
195 	HELP_WAIT
196 } zpool_help_t;
197 
198 
199 /*
200  * Flags for stats to display with "zpool iostats"
201  */
202 enum iostat_type {
203 	IOS_DEFAULT = 0,
204 	IOS_LATENCY = 1,
205 	IOS_QUEUES = 2,
206 	IOS_L_HISTO = 3,
207 	IOS_RQ_HISTO = 4,
208 	IOS_COUNT,	/* always last element */
209 };
210 
211 /* iostat_type entries as bitmasks */
212 #define	IOS_DEFAULT_M	(1ULL << IOS_DEFAULT)
213 #define	IOS_LATENCY_M	(1ULL << IOS_LATENCY)
214 #define	IOS_QUEUES_M	(1ULL << IOS_QUEUES)
215 #define	IOS_L_HISTO_M	(1ULL << IOS_L_HISTO)
216 #define	IOS_RQ_HISTO_M	(1ULL << IOS_RQ_HISTO)
217 
218 /* Mask of all the histo bits */
219 #define	IOS_ANYHISTO_M (IOS_L_HISTO_M | IOS_RQ_HISTO_M)
220 
221 /*
222  * Lookup table for iostat flags to nvlist names.  Basically a list
223  * of all the nvlists a flag requires.  Also specifies the order in
224  * which data gets printed in zpool iostat.
225  */
226 static const char *vsx_type_to_nvlist[IOS_COUNT][15] = {
227 	[IOS_L_HISTO] = {
228 	    ZPOOL_CONFIG_VDEV_TOT_R_LAT_HISTO,
229 	    ZPOOL_CONFIG_VDEV_TOT_W_LAT_HISTO,
230 	    ZPOOL_CONFIG_VDEV_DISK_R_LAT_HISTO,
231 	    ZPOOL_CONFIG_VDEV_DISK_W_LAT_HISTO,
232 	    ZPOOL_CONFIG_VDEV_SYNC_R_LAT_HISTO,
233 	    ZPOOL_CONFIG_VDEV_SYNC_W_LAT_HISTO,
234 	    ZPOOL_CONFIG_VDEV_ASYNC_R_LAT_HISTO,
235 	    ZPOOL_CONFIG_VDEV_ASYNC_W_LAT_HISTO,
236 	    ZPOOL_CONFIG_VDEV_SCRUB_LAT_HISTO,
237 	    ZPOOL_CONFIG_VDEV_TRIM_LAT_HISTO,
238 	    ZPOOL_CONFIG_VDEV_REBUILD_LAT_HISTO,
239 	    NULL},
240 	[IOS_LATENCY] = {
241 	    ZPOOL_CONFIG_VDEV_TOT_R_LAT_HISTO,
242 	    ZPOOL_CONFIG_VDEV_TOT_W_LAT_HISTO,
243 	    ZPOOL_CONFIG_VDEV_DISK_R_LAT_HISTO,
244 	    ZPOOL_CONFIG_VDEV_DISK_W_LAT_HISTO,
245 	    ZPOOL_CONFIG_VDEV_TRIM_LAT_HISTO,
246 	    ZPOOL_CONFIG_VDEV_REBUILD_LAT_HISTO,
247 	    NULL},
248 	[IOS_QUEUES] = {
249 	    ZPOOL_CONFIG_VDEV_SYNC_R_ACTIVE_QUEUE,
250 	    ZPOOL_CONFIG_VDEV_SYNC_W_ACTIVE_QUEUE,
251 	    ZPOOL_CONFIG_VDEV_ASYNC_R_ACTIVE_QUEUE,
252 	    ZPOOL_CONFIG_VDEV_ASYNC_W_ACTIVE_QUEUE,
253 	    ZPOOL_CONFIG_VDEV_SCRUB_ACTIVE_QUEUE,
254 	    ZPOOL_CONFIG_VDEV_TRIM_ACTIVE_QUEUE,
255 	    ZPOOL_CONFIG_VDEV_REBUILD_ACTIVE_QUEUE,
256 	    NULL},
257 	[IOS_RQ_HISTO] = {
258 	    ZPOOL_CONFIG_VDEV_SYNC_IND_R_HISTO,
259 	    ZPOOL_CONFIG_VDEV_SYNC_AGG_R_HISTO,
260 	    ZPOOL_CONFIG_VDEV_SYNC_IND_W_HISTO,
261 	    ZPOOL_CONFIG_VDEV_SYNC_AGG_W_HISTO,
262 	    ZPOOL_CONFIG_VDEV_ASYNC_IND_R_HISTO,
263 	    ZPOOL_CONFIG_VDEV_ASYNC_AGG_R_HISTO,
264 	    ZPOOL_CONFIG_VDEV_ASYNC_IND_W_HISTO,
265 	    ZPOOL_CONFIG_VDEV_ASYNC_AGG_W_HISTO,
266 	    ZPOOL_CONFIG_VDEV_IND_SCRUB_HISTO,
267 	    ZPOOL_CONFIG_VDEV_AGG_SCRUB_HISTO,
268 	    ZPOOL_CONFIG_VDEV_IND_TRIM_HISTO,
269 	    ZPOOL_CONFIG_VDEV_AGG_TRIM_HISTO,
270 	    ZPOOL_CONFIG_VDEV_IND_REBUILD_HISTO,
271 	    ZPOOL_CONFIG_VDEV_AGG_REBUILD_HISTO,
272 	    NULL},
273 };
274 
275 
276 /*
277  * Given a cb->cb_flags with a histogram bit set, return the iostat_type.
278  * Right now, only one histo bit is ever set at one time, so we can
279  * just do a highbit64(a)
280  */
281 #define	IOS_HISTO_IDX(a)	(highbit64(a & IOS_ANYHISTO_M) - 1)
282 
283 typedef struct zpool_command {
284 	const char	*name;
285 	int		(*func)(int, char **);
286 	zpool_help_t	usage;
287 } zpool_command_t;
288 
289 /*
290  * Master command table.  Each ZFS command has a name, associated function, and
291  * usage message.  The usage messages need to be internationalized, so we have
292  * to have a function to return the usage message based on a command index.
293  *
294  * These commands are organized according to how they are displayed in the usage
295  * message.  An empty command (one with a NULL name) indicates an empty line in
296  * the generic usage message.
297  */
298 static zpool_command_t command_table[] = {
299 	{ "version",	zpool_do_version,	HELP_VERSION		},
300 	{ NULL },
301 	{ "create",	zpool_do_create,	HELP_CREATE		},
302 	{ "destroy",	zpool_do_destroy,	HELP_DESTROY		},
303 	{ NULL },
304 	{ "add",	zpool_do_add,		HELP_ADD		},
305 	{ "remove",	zpool_do_remove,	HELP_REMOVE		},
306 	{ NULL },
307 	{ "labelclear",	zpool_do_labelclear,	HELP_LABELCLEAR		},
308 	{ NULL },
309 	{ "checkpoint",	zpool_do_checkpoint,	HELP_CHECKPOINT		},
310 	{ NULL },
311 	{ "list",	zpool_do_list,		HELP_LIST		},
312 	{ "iostat",	zpool_do_iostat,	HELP_IOSTAT		},
313 	{ "status",	zpool_do_status,	HELP_STATUS		},
314 	{ NULL },
315 	{ "online",	zpool_do_online,	HELP_ONLINE		},
316 	{ "offline",	zpool_do_offline,	HELP_OFFLINE		},
317 	{ "clear",	zpool_do_clear,		HELP_CLEAR		},
318 	{ "reopen",	zpool_do_reopen,	HELP_REOPEN		},
319 	{ NULL },
320 	{ "attach",	zpool_do_attach,	HELP_ATTACH		},
321 	{ "detach",	zpool_do_detach,	HELP_DETACH		},
322 	{ "replace",	zpool_do_replace,	HELP_REPLACE		},
323 	{ "split",	zpool_do_split,		HELP_SPLIT		},
324 	{ NULL },
325 	{ "initialize",	zpool_do_initialize,	HELP_INITIALIZE		},
326 	{ "resilver",	zpool_do_resilver,	HELP_RESILVER		},
327 	{ "scrub",	zpool_do_scrub,		HELP_SCRUB		},
328 	{ "trim",	zpool_do_trim,		HELP_TRIM		},
329 	{ NULL },
330 	{ "import",	zpool_do_import,	HELP_IMPORT		},
331 	{ "export",	zpool_do_export,	HELP_EXPORT		},
332 	{ "upgrade",	zpool_do_upgrade,	HELP_UPGRADE		},
333 	{ "reguid",	zpool_do_reguid,	HELP_REGUID		},
334 	{ NULL },
335 	{ "history",	zpool_do_history,	HELP_HISTORY		},
336 	{ "events",	zpool_do_events,	HELP_EVENTS		},
337 	{ NULL },
338 	{ "get",	zpool_do_get,		HELP_GET		},
339 	{ "set",	zpool_do_set,		HELP_SET		},
340 	{ "sync",	zpool_do_sync,		HELP_SYNC		},
341 	{ NULL },
342 	{ "wait",	zpool_do_wait,		HELP_WAIT		},
343 };
344 
345 #define	NCOMMAND	(ARRAY_SIZE(command_table))
346 
347 #define	VDEV_ALLOC_CLASS_LOGS	"logs"
348 
349 static zpool_command_t *current_command;
350 static zfs_type_t current_prop_type = (ZFS_TYPE_POOL | ZFS_TYPE_VDEV);
351 static char history_str[HIS_MAX_RECORD_LEN];
352 static boolean_t log_history = B_TRUE;
353 static uint_t timestamp_fmt = NODATE;
354 
355 static const char *
356 get_usage(zpool_help_t idx)
357 {
358 	switch (idx) {
359 	case HELP_ADD:
360 		return (gettext("\tadd [-afgLnP] [-o property=value] "
361 		    "<pool> <vdev> ...\n"));
362 	case HELP_ATTACH:
363 		return (gettext("\tattach [-fsw] [-o property=value] "
364 		    "<pool> <device> <new-device>\n"));
365 	case HELP_CLEAR:
366 		return (gettext("\tclear [[--power]|[-nF]] <pool> [device]\n"));
367 	case HELP_CREATE:
368 		return (gettext("\tcreate [-fnd] [-o property=value] ... \n"
369 		    "\t    [-O file-system-property=value] ... \n"
370 		    "\t    [-m mountpoint] [-R root] <pool> <vdev> ...\n"));
371 	case HELP_CHECKPOINT:
372 		return (gettext("\tcheckpoint [-d [-w]] <pool> ...\n"));
373 	case HELP_DESTROY:
374 		return (gettext("\tdestroy [-f] <pool>\n"));
375 	case HELP_DETACH:
376 		return (gettext("\tdetach <pool> <device>\n"));
377 	case HELP_EXPORT:
378 		return (gettext("\texport [-af] <pool> ...\n"));
379 	case HELP_HISTORY:
380 		return (gettext("\thistory [-il] [<pool>] ...\n"));
381 	case HELP_IMPORT:
382 		return (gettext("\timport [-d dir] [-D]\n"
383 		    "\timport [-o mntopts] [-o property=value] ... \n"
384 		    "\t    [-d dir | -c cachefile] [-D] [-l] [-f] [-m] [-N] "
385 		    "[-R root] [-F [-n]] -a\n"
386 		    "\timport [-o mntopts] [-o property=value] ... \n"
387 		    "\t    [-d dir | -c cachefile] [-D] [-l] [-f] [-m] [-N] "
388 		    "[-R root] [-F [-n]]\n"
389 		    "\t    [--rewind-to-checkpoint] <pool | id> [newpool]\n"));
390 	case HELP_IOSTAT:
391 		return (gettext("\tiostat [[[-c [script1,script2,...]"
392 		    "[-lq]]|[-rw]] [-T d | u] [-ghHLpPvy]\n"
393 		    "\t    [[pool ...]|[pool vdev ...]|[vdev ...]]"
394 		    " [[-n] interval [count]]\n"));
395 	case HELP_LABELCLEAR:
396 		return (gettext("\tlabelclear [-f] <vdev>\n"));
397 	case HELP_LIST:
398 		return (gettext("\tlist [-gHLpPv] [-o property[,...]] "
399 		    "[-T d|u] [pool] ... \n"
400 		    "\t    [interval [count]]\n"));
401 	case HELP_OFFLINE:
402 		return (gettext("\toffline [--power]|[[-f][-t]] <pool> "
403 		    "<device> ...\n"));
404 	case HELP_ONLINE:
405 		return (gettext("\tonline [--power][-e] <pool> <device> "
406 		    "...\n"));
407 	case HELP_REPLACE:
408 		return (gettext("\treplace [-fsw] [-o property=value] "
409 		    "<pool> <device> [new-device]\n"));
410 	case HELP_REMOVE:
411 		return (gettext("\tremove [-npsw] <pool> <device> ...\n"));
412 	case HELP_REOPEN:
413 		return (gettext("\treopen [-n] <pool>\n"));
414 	case HELP_INITIALIZE:
415 		return (gettext("\tinitialize [-c | -s | -u] [-w] <pool> "
416 		    "[<device> ...]\n"));
417 	case HELP_SCRUB:
418 		return (gettext("\tscrub [-s | -p] [-w] [-e] <pool> ...\n"));
419 	case HELP_RESILVER:
420 		return (gettext("\tresilver <pool> ...\n"));
421 	case HELP_TRIM:
422 		return (gettext("\ttrim [-dw] [-r <rate>] [-c | -s] <pool> "
423 		    "[<device> ...]\n"));
424 	case HELP_STATUS:
425 		return (gettext("\tstatus [--power] [-c [script1,script2,...]] "
426 		    "[-DegiLpPstvx] [-T d|u] [pool] ...\n"
427 		    "\t    [interval [count]]\n"));
428 	case HELP_UPGRADE:
429 		return (gettext("\tupgrade\n"
430 		    "\tupgrade -v\n"
431 		    "\tupgrade [-V version] <-a | pool ...>\n"));
432 	case HELP_EVENTS:
433 		return (gettext("\tevents [-vHf [pool] | -c]\n"));
434 	case HELP_GET:
435 		return (gettext("\tget [-Hp] [-o \"all\" | field[,...]] "
436 		    "<\"all\" | property[,...]> <pool> ...\n"));
437 	case HELP_SET:
438 		return (gettext("\tset <property=value> <pool>\n"
439 		    "\tset <vdev_property=value> <pool> <vdev>\n"));
440 	case HELP_SPLIT:
441 		return (gettext("\tsplit [-gLnPl] [-R altroot] [-o mntopts]\n"
442 		    "\t    [-o property=value] <pool> <newpool> "
443 		    "[<device> ...]\n"));
444 	case HELP_REGUID:
445 		return (gettext("\treguid <pool>\n"));
446 	case HELP_SYNC:
447 		return (gettext("\tsync [pool] ...\n"));
448 	case HELP_VERSION:
449 		return (gettext("\tversion\n"));
450 	case HELP_WAIT:
451 		return (gettext("\twait [-Hp] [-T d|u] [-t <activity>[,...]] "
452 		    "<pool> [interval]\n"));
453 	default:
454 		__builtin_unreachable();
455 	}
456 }
457 
458 static void
459 zpool_collect_leaves(zpool_handle_t *zhp, nvlist_t *nvroot, nvlist_t *res)
460 {
461 	uint_t children = 0;
462 	nvlist_t **child;
463 	uint_t i;
464 
465 	(void) nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_CHILDREN,
466 	    &child, &children);
467 
468 	if (children == 0) {
469 		char *path = zpool_vdev_name(g_zfs, zhp, nvroot,
470 		    VDEV_NAME_PATH);
471 
472 		if (strcmp(path, VDEV_TYPE_INDIRECT) != 0 &&
473 		    strcmp(path, VDEV_TYPE_HOLE) != 0)
474 			fnvlist_add_boolean(res, path);
475 
476 		free(path);
477 		return;
478 	}
479 
480 	for (i = 0; i < children; i++) {
481 		zpool_collect_leaves(zhp, child[i], res);
482 	}
483 }
484 
485 /*
486  * Callback routine that will print out a pool property value.
487  */
488 static int
489 print_pool_prop_cb(int prop, void *cb)
490 {
491 	FILE *fp = cb;
492 
493 	(void) fprintf(fp, "\t%-19s  ", zpool_prop_to_name(prop));
494 
495 	if (zpool_prop_readonly(prop))
496 		(void) fprintf(fp, "  NO   ");
497 	else
498 		(void) fprintf(fp, " YES   ");
499 
500 	if (zpool_prop_values(prop) == NULL)
501 		(void) fprintf(fp, "-\n");
502 	else
503 		(void) fprintf(fp, "%s\n", zpool_prop_values(prop));
504 
505 	return (ZPROP_CONT);
506 }
507 
508 /*
509  * Callback routine that will print out a vdev property value.
510  */
511 static int
512 print_vdev_prop_cb(int prop, void *cb)
513 {
514 	FILE *fp = cb;
515 
516 	(void) fprintf(fp, "\t%-19s  ", vdev_prop_to_name(prop));
517 
518 	if (vdev_prop_readonly(prop))
519 		(void) fprintf(fp, "  NO   ");
520 	else
521 		(void) fprintf(fp, " YES   ");
522 
523 	if (vdev_prop_values(prop) == NULL)
524 		(void) fprintf(fp, "-\n");
525 	else
526 		(void) fprintf(fp, "%s\n", vdev_prop_values(prop));
527 
528 	return (ZPROP_CONT);
529 }
530 
531 /*
532  * Given a leaf vdev name like 'L5' return its VDEV_CONFIG_PATH like
533  * '/dev/disk/by-vdev/L5'.
534  */
535 static const char *
536 vdev_name_to_path(zpool_handle_t *zhp, char *vdev)
537 {
538 	nvlist_t *vdev_nv = zpool_find_vdev(zhp, vdev, NULL, NULL, NULL);
539 	if (vdev_nv == NULL) {
540 		return (NULL);
541 	}
542 	return (fnvlist_lookup_string(vdev_nv, ZPOOL_CONFIG_PATH));
543 }
544 
545 static int
546 zpool_power_on(zpool_handle_t *zhp, char *vdev)
547 {
548 	return (zpool_power(zhp, vdev, B_TRUE));
549 }
550 
551 static int
552 zpool_power_on_and_disk_wait(zpool_handle_t *zhp, char *vdev)
553 {
554 	int rc;
555 
556 	rc = zpool_power_on(zhp, vdev);
557 	if (rc != 0)
558 		return (rc);
559 
560 	zpool_disk_wait(vdev_name_to_path(zhp, vdev));
561 
562 	return (0);
563 }
564 
565 static int
566 zpool_power_on_pool_and_wait_for_devices(zpool_handle_t *zhp)
567 {
568 	nvlist_t *nv;
569 	const char *path = NULL;
570 	int rc;
571 
572 	/* Power up all the devices first */
573 	FOR_EACH_REAL_LEAF_VDEV(zhp, nv) {
574 		path = fnvlist_lookup_string(nv, ZPOOL_CONFIG_PATH);
575 		if (path != NULL) {
576 			rc = zpool_power_on(zhp, (char *)path);
577 			if (rc != 0) {
578 				return (rc);
579 			}
580 		}
581 	}
582 
583 	/*
584 	 * Wait for their devices to show up.  Since we powered them on
585 	 * at roughly the same time, they should all come online around
586 	 * the same time.
587 	 */
588 	FOR_EACH_REAL_LEAF_VDEV(zhp, nv) {
589 		path = fnvlist_lookup_string(nv, ZPOOL_CONFIG_PATH);
590 		zpool_disk_wait(path);
591 	}
592 
593 	return (0);
594 }
595 
596 static int
597 zpool_power_off(zpool_handle_t *zhp, char *vdev)
598 {
599 	return (zpool_power(zhp, vdev, B_FALSE));
600 }
601 
602 /*
603  * Display usage message.  If we're inside a command, display only the usage for
604  * that command.  Otherwise, iterate over the entire command table and display
605  * a complete usage message.
606  */
607 static __attribute__((noreturn)) void
608 usage(boolean_t requested)
609 {
610 	FILE *fp = requested ? stdout : stderr;
611 
612 	if (current_command == NULL) {
613 		int i;
614 
615 		(void) fprintf(fp, gettext("usage: zpool command args ...\n"));
616 		(void) fprintf(fp,
617 		    gettext("where 'command' is one of the following:\n\n"));
618 
619 		for (i = 0; i < NCOMMAND; i++) {
620 			if (command_table[i].name == NULL)
621 				(void) fprintf(fp, "\n");
622 			else
623 				(void) fprintf(fp, "%s",
624 				    get_usage(command_table[i].usage));
625 		}
626 
627 		(void) fprintf(fp,
628 		    gettext("\nFor further help on a command or topic, "
629 		    "run: %s\n"), "zpool help [<topic>]");
630 	} else {
631 		(void) fprintf(fp, gettext("usage:\n"));
632 		(void) fprintf(fp, "%s", get_usage(current_command->usage));
633 	}
634 
635 	if (current_command != NULL &&
636 	    current_prop_type != (ZFS_TYPE_POOL | ZFS_TYPE_VDEV) &&
637 	    ((strcmp(current_command->name, "set") == 0) ||
638 	    (strcmp(current_command->name, "get") == 0) ||
639 	    (strcmp(current_command->name, "list") == 0))) {
640 
641 		(void) fprintf(fp, "%s",
642 		    gettext("\nthe following properties are supported:\n"));
643 
644 		(void) fprintf(fp, "\n\t%-19s  %s   %s\n\n",
645 		    "PROPERTY", "EDIT", "VALUES");
646 
647 		/* Iterate over all properties */
648 		if (current_prop_type == ZFS_TYPE_POOL) {
649 			(void) zprop_iter(print_pool_prop_cb, fp, B_FALSE,
650 			    B_TRUE, current_prop_type);
651 
652 			(void) fprintf(fp, "\t%-19s   ", "feature@...");
653 			(void) fprintf(fp, "YES   "
654 			    "disabled | enabled | active\n");
655 
656 			(void) fprintf(fp, gettext("\nThe feature@ properties "
657 			    "must be appended with a feature name.\n"
658 			    "See zpool-features(7).\n"));
659 		} else if (current_prop_type == ZFS_TYPE_VDEV) {
660 			(void) zprop_iter(print_vdev_prop_cb, fp, B_FALSE,
661 			    B_TRUE, current_prop_type);
662 		}
663 	}
664 
665 	/*
666 	 * See comments at end of main().
667 	 */
668 	if (getenv("ZFS_ABORT") != NULL) {
669 		(void) printf("dumping core by request\n");
670 		abort();
671 	}
672 
673 	exit(requested ? 0 : 2);
674 }
675 
676 /*
677  * zpool initialize [-c | -s | -u] [-w] <pool> [<vdev> ...]
678  * Initialize all unused blocks in the specified vdevs, or all vdevs in the pool
679  * if none specified.
680  *
681  *	-c	Cancel. Ends active initializing.
682  *	-s	Suspend. Initializing can then be restarted with no flags.
683  *	-u	Uninitialize. Clears initialization state.
684  *	-w	Wait. Blocks until initializing has completed.
685  */
686 int
687 zpool_do_initialize(int argc, char **argv)
688 {
689 	int c;
690 	char *poolname;
691 	zpool_handle_t *zhp;
692 	nvlist_t *vdevs;
693 	int err = 0;
694 	boolean_t wait = B_FALSE;
695 
696 	struct option long_options[] = {
697 		{"cancel",	no_argument,		NULL, 'c'},
698 		{"suspend",	no_argument,		NULL, 's'},
699 		{"uninit",	no_argument,		NULL, 'u'},
700 		{"wait",	no_argument,		NULL, 'w'},
701 		{0, 0, 0, 0}
702 	};
703 
704 	pool_initialize_func_t cmd_type = POOL_INITIALIZE_START;
705 	while ((c = getopt_long(argc, argv, "csuw", long_options,
706 	    NULL)) != -1) {
707 		switch (c) {
708 		case 'c':
709 			if (cmd_type != POOL_INITIALIZE_START &&
710 			    cmd_type != POOL_INITIALIZE_CANCEL) {
711 				(void) fprintf(stderr, gettext("-c cannot be "
712 				    "combined with other options\n"));
713 				usage(B_FALSE);
714 			}
715 			cmd_type = POOL_INITIALIZE_CANCEL;
716 			break;
717 		case 's':
718 			if (cmd_type != POOL_INITIALIZE_START &&
719 			    cmd_type != POOL_INITIALIZE_SUSPEND) {
720 				(void) fprintf(stderr, gettext("-s cannot be "
721 				    "combined with other options\n"));
722 				usage(B_FALSE);
723 			}
724 			cmd_type = POOL_INITIALIZE_SUSPEND;
725 			break;
726 		case 'u':
727 			if (cmd_type != POOL_INITIALIZE_START &&
728 			    cmd_type != POOL_INITIALIZE_UNINIT) {
729 				(void) fprintf(stderr, gettext("-u cannot be "
730 				    "combined with other options\n"));
731 				usage(B_FALSE);
732 			}
733 			cmd_type = POOL_INITIALIZE_UNINIT;
734 			break;
735 		case 'w':
736 			wait = B_TRUE;
737 			break;
738 		case '?':
739 			if (optopt != 0) {
740 				(void) fprintf(stderr,
741 				    gettext("invalid option '%c'\n"), optopt);
742 			} else {
743 				(void) fprintf(stderr,
744 				    gettext("invalid option '%s'\n"),
745 				    argv[optind - 1]);
746 			}
747 			usage(B_FALSE);
748 		}
749 	}
750 
751 	argc -= optind;
752 	argv += optind;
753 
754 	if (argc < 1) {
755 		(void) fprintf(stderr, gettext("missing pool name argument\n"));
756 		usage(B_FALSE);
757 		return (-1);
758 	}
759 
760 	if (wait && (cmd_type != POOL_INITIALIZE_START)) {
761 		(void) fprintf(stderr, gettext("-w cannot be used with -c, -s"
762 		    "or -u\n"));
763 		usage(B_FALSE);
764 	}
765 
766 	poolname = argv[0];
767 	zhp = zpool_open(g_zfs, poolname);
768 	if (zhp == NULL)
769 		return (-1);
770 
771 	vdevs = fnvlist_alloc();
772 	if (argc == 1) {
773 		/* no individual leaf vdevs specified, so add them all */
774 		nvlist_t *config = zpool_get_config(zhp, NULL);
775 		nvlist_t *nvroot = fnvlist_lookup_nvlist(config,
776 		    ZPOOL_CONFIG_VDEV_TREE);
777 		zpool_collect_leaves(zhp, nvroot, vdevs);
778 	} else {
779 		for (int i = 1; i < argc; i++) {
780 			fnvlist_add_boolean(vdevs, argv[i]);
781 		}
782 	}
783 
784 	if (wait)
785 		err = zpool_initialize_wait(zhp, cmd_type, vdevs);
786 	else
787 		err = zpool_initialize(zhp, cmd_type, vdevs);
788 
789 	fnvlist_free(vdevs);
790 	zpool_close(zhp);
791 
792 	return (err);
793 }
794 
795 /*
796  * print a pool vdev config for dry runs
797  */
798 static void
799 print_vdev_tree(zpool_handle_t *zhp, const char *name, nvlist_t *nv, int indent,
800     const char *match, int name_flags)
801 {
802 	nvlist_t **child;
803 	uint_t c, children;
804 	char *vname;
805 	boolean_t printed = B_FALSE;
806 
807 	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
808 	    &child, &children) != 0) {
809 		if (name != NULL)
810 			(void) printf("\t%*s%s\n", indent, "", name);
811 		return;
812 	}
813 
814 	for (c = 0; c < children; c++) {
815 		uint64_t is_log = B_FALSE, is_hole = B_FALSE;
816 		const char *class = "";
817 
818 		(void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_HOLE,
819 		    &is_hole);
820 
821 		if (is_hole == B_TRUE) {
822 			continue;
823 		}
824 
825 		(void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_LOG,
826 		    &is_log);
827 		if (is_log)
828 			class = VDEV_ALLOC_BIAS_LOG;
829 		(void) nvlist_lookup_string(child[c],
830 		    ZPOOL_CONFIG_ALLOCATION_BIAS, &class);
831 		if (strcmp(match, class) != 0)
832 			continue;
833 
834 		if (!printed && name != NULL) {
835 			(void) printf("\t%*s%s\n", indent, "", name);
836 			printed = B_TRUE;
837 		}
838 		vname = zpool_vdev_name(g_zfs, zhp, child[c], name_flags);
839 		print_vdev_tree(zhp, vname, child[c], indent + 2, "",
840 		    name_flags);
841 		free(vname);
842 	}
843 }
844 
845 /*
846  * Print the list of l2cache devices for dry runs.
847  */
848 static void
849 print_cache_list(nvlist_t *nv, int indent)
850 {
851 	nvlist_t **child;
852 	uint_t c, children;
853 
854 	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_L2CACHE,
855 	    &child, &children) == 0 && children > 0) {
856 		(void) printf("\t%*s%s\n", indent, "", "cache");
857 	} else {
858 		return;
859 	}
860 	for (c = 0; c < children; c++) {
861 		char *vname;
862 
863 		vname = zpool_vdev_name(g_zfs, NULL, child[c], 0);
864 		(void) printf("\t%*s%s\n", indent + 2, "", vname);
865 		free(vname);
866 	}
867 }
868 
869 /*
870  * Print the list of spares for dry runs.
871  */
872 static void
873 print_spare_list(nvlist_t *nv, int indent)
874 {
875 	nvlist_t **child;
876 	uint_t c, children;
877 
878 	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_SPARES,
879 	    &child, &children) == 0 && children > 0) {
880 		(void) printf("\t%*s%s\n", indent, "", "spares");
881 	} else {
882 		return;
883 	}
884 	for (c = 0; c < children; c++) {
885 		char *vname;
886 
887 		vname = zpool_vdev_name(g_zfs, NULL, child[c], 0);
888 		(void) printf("\t%*s%s\n", indent + 2, "", vname);
889 		free(vname);
890 	}
891 }
892 
893 static boolean_t
894 prop_list_contains_feature(nvlist_t *proplist)
895 {
896 	nvpair_t *nvp;
897 	for (nvp = nvlist_next_nvpair(proplist, NULL); NULL != nvp;
898 	    nvp = nvlist_next_nvpair(proplist, nvp)) {
899 		if (zpool_prop_feature(nvpair_name(nvp)))
900 			return (B_TRUE);
901 	}
902 	return (B_FALSE);
903 }
904 
905 /*
906  * Add a property pair (name, string-value) into a property nvlist.
907  */
908 static int
909 add_prop_list(const char *propname, const char *propval, nvlist_t **props,
910     boolean_t poolprop)
911 {
912 	zpool_prop_t prop = ZPOOL_PROP_INVAL;
913 	nvlist_t *proplist;
914 	const char *normnm;
915 	const char *strval;
916 
917 	if (*props == NULL &&
918 	    nvlist_alloc(props, NV_UNIQUE_NAME, 0) != 0) {
919 		(void) fprintf(stderr,
920 		    gettext("internal error: out of memory\n"));
921 		return (1);
922 	}
923 
924 	proplist = *props;
925 
926 	if (poolprop) {
927 		const char *vname = zpool_prop_to_name(ZPOOL_PROP_VERSION);
928 		const char *cname =
929 		    zpool_prop_to_name(ZPOOL_PROP_COMPATIBILITY);
930 
931 		if ((prop = zpool_name_to_prop(propname)) == ZPOOL_PROP_INVAL &&
932 		    (!zpool_prop_feature(propname) &&
933 		    !zpool_prop_vdev(propname))) {
934 			(void) fprintf(stderr, gettext("property '%s' is "
935 			    "not a valid pool or vdev property\n"), propname);
936 			return (2);
937 		}
938 
939 		/*
940 		 * feature@ properties and version should not be specified
941 		 * at the same time.
942 		 */
943 		if ((prop == ZPOOL_PROP_INVAL && zpool_prop_feature(propname) &&
944 		    nvlist_exists(proplist, vname)) ||
945 		    (prop == ZPOOL_PROP_VERSION &&
946 		    prop_list_contains_feature(proplist))) {
947 			(void) fprintf(stderr, gettext("'feature@' and "
948 			    "'version' properties cannot be specified "
949 			    "together\n"));
950 			return (2);
951 		}
952 
953 		/*
954 		 * if version is specified, only "legacy" compatibility
955 		 * may be requested
956 		 */
957 		if ((prop == ZPOOL_PROP_COMPATIBILITY &&
958 		    strcmp(propval, ZPOOL_COMPAT_LEGACY) != 0 &&
959 		    nvlist_exists(proplist, vname)) ||
960 		    (prop == ZPOOL_PROP_VERSION &&
961 		    nvlist_exists(proplist, cname) &&
962 		    strcmp(fnvlist_lookup_string(proplist, cname),
963 		    ZPOOL_COMPAT_LEGACY) != 0)) {
964 			(void) fprintf(stderr, gettext("when 'version' is "
965 			    "specified, the 'compatibility' feature may only "
966 			    "be set to '" ZPOOL_COMPAT_LEGACY "'\n"));
967 			return (2);
968 		}
969 
970 		if (zpool_prop_feature(propname) || zpool_prop_vdev(propname))
971 			normnm = propname;
972 		else
973 			normnm = zpool_prop_to_name(prop);
974 	} else {
975 		zfs_prop_t fsprop = zfs_name_to_prop(propname);
976 
977 		if (zfs_prop_valid_for_type(fsprop, ZFS_TYPE_FILESYSTEM,
978 		    B_FALSE)) {
979 			normnm = zfs_prop_to_name(fsprop);
980 		} else if (zfs_prop_user(propname) ||
981 		    zfs_prop_userquota(propname)) {
982 			normnm = propname;
983 		} else {
984 			(void) fprintf(stderr, gettext("property '%s' is "
985 			    "not a valid filesystem property\n"), propname);
986 			return (2);
987 		}
988 	}
989 
990 	if (nvlist_lookup_string(proplist, normnm, &strval) == 0 &&
991 	    prop != ZPOOL_PROP_CACHEFILE) {
992 		(void) fprintf(stderr, gettext("property '%s' "
993 		    "specified multiple times\n"), propname);
994 		return (2);
995 	}
996 
997 	if (nvlist_add_string(proplist, normnm, propval) != 0) {
998 		(void) fprintf(stderr, gettext("internal "
999 		    "error: out of memory\n"));
1000 		return (1);
1001 	}
1002 
1003 	return (0);
1004 }
1005 
1006 /*
1007  * Set a default property pair (name, string-value) in a property nvlist
1008  */
1009 static int
1010 add_prop_list_default(const char *propname, const char *propval,
1011     nvlist_t **props)
1012 {
1013 	const char *pval;
1014 
1015 	if (nvlist_lookup_string(*props, propname, &pval) == 0)
1016 		return (0);
1017 
1018 	return (add_prop_list(propname, propval, props, B_TRUE));
1019 }
1020 
1021 /*
1022  * zpool add [-afgLnP] [-o property=value] <pool> <vdev> ...
1023  *
1024  *	-a	Disable the ashift validation checks
1025  *	-f	Force addition of devices, even if they appear in use
1026  *	-g	Display guid for individual vdev name.
1027  *	-L	Follow links when resolving vdev path name.
1028  *	-n	Do not add the devices, but display the resulting layout if
1029  *		they were to be added.
1030  *	-o	Set property=value.
1031  *	-P	Display full path for vdev name.
1032  *
1033  * Adds the given vdevs to 'pool'.  As with create, the bulk of this work is
1034  * handled by make_root_vdev(), which constructs the nvlist needed to pass to
1035  * libzfs.
1036  */
1037 int
1038 zpool_do_add(int argc, char **argv)
1039 {
1040 	boolean_t check_replication = B_TRUE;
1041 	boolean_t check_inuse = B_TRUE;
1042 	boolean_t dryrun = B_FALSE;
1043 	boolean_t check_ashift = B_TRUE;
1044 	boolean_t force = B_FALSE;
1045 	int name_flags = 0;
1046 	int c;
1047 	nvlist_t *nvroot;
1048 	char *poolname;
1049 	int ret;
1050 	zpool_handle_t *zhp;
1051 	nvlist_t *config;
1052 	nvlist_t *props = NULL;
1053 	char *propval;
1054 
1055 	struct option long_options[] = {
1056 		{"allow-in-use", no_argument, NULL, ZPOOL_OPTION_ALLOW_INUSE},
1057 		{"allow-replication-mismatch", no_argument, NULL,
1058 		    ZPOOL_OPTION_ALLOW_REPLICATION_MISMATCH},
1059 		{"allow-ashift-mismatch", no_argument, NULL,
1060 		    ZPOOL_OPTION_ALLOW_ASHIFT_MISMATCH},
1061 		{0, 0, 0, 0}
1062 	};
1063 
1064 	/* check options */
1065 	while ((c = getopt_long(argc, argv, "fgLno:P", long_options, NULL))
1066 	    != -1) {
1067 		switch (c) {
1068 		case 'f':
1069 			force = B_TRUE;
1070 			break;
1071 		case 'g':
1072 			name_flags |= VDEV_NAME_GUID;
1073 			break;
1074 		case 'L':
1075 			name_flags |= VDEV_NAME_FOLLOW_LINKS;
1076 			break;
1077 		case 'n':
1078 			dryrun = B_TRUE;
1079 			break;
1080 		case 'o':
1081 			if ((propval = strchr(optarg, '=')) == NULL) {
1082 				(void) fprintf(stderr, gettext("missing "
1083 				    "'=' for -o option\n"));
1084 				usage(B_FALSE);
1085 			}
1086 			*propval = '\0';
1087 			propval++;
1088 
1089 			if ((strcmp(optarg, ZPOOL_CONFIG_ASHIFT) != 0) ||
1090 			    (add_prop_list(optarg, propval, &props, B_TRUE)))
1091 				usage(B_FALSE);
1092 			break;
1093 		case 'P':
1094 			name_flags |= VDEV_NAME_PATH;
1095 			break;
1096 		case ZPOOL_OPTION_ALLOW_INUSE:
1097 			check_inuse = B_FALSE;
1098 			break;
1099 		case ZPOOL_OPTION_ALLOW_REPLICATION_MISMATCH:
1100 			check_replication = B_FALSE;
1101 			break;
1102 		case ZPOOL_OPTION_ALLOW_ASHIFT_MISMATCH:
1103 			check_ashift = B_FALSE;
1104 			break;
1105 		case '?':
1106 			(void) fprintf(stderr, gettext("invalid option '%c'\n"),
1107 			    optopt);
1108 			usage(B_FALSE);
1109 		}
1110 	}
1111 
1112 	argc -= optind;
1113 	argv += optind;
1114 
1115 	/* get pool name and check number of arguments */
1116 	if (argc < 1) {
1117 		(void) fprintf(stderr, gettext("missing pool name argument\n"));
1118 		usage(B_FALSE);
1119 	}
1120 	if (argc < 2) {
1121 		(void) fprintf(stderr, gettext("missing vdev specification\n"));
1122 		usage(B_FALSE);
1123 	}
1124 
1125 	if (force) {
1126 		if (!check_inuse || !check_replication || !check_ashift) {
1127 			(void) fprintf(stderr, gettext("'-f' option is not "
1128 			    "allowed with '--allow-replication-mismatch', "
1129 			    "'--allow-ashift-mismatch', or "
1130 			    "'--allow-in-use'\n"));
1131 			usage(B_FALSE);
1132 		}
1133 		check_inuse = B_FALSE;
1134 		check_replication = B_FALSE;
1135 		check_ashift = B_FALSE;
1136 	}
1137 
1138 	poolname = argv[0];
1139 
1140 	argc--;
1141 	argv++;
1142 
1143 	if ((zhp = zpool_open(g_zfs, poolname)) == NULL)
1144 		return (1);
1145 
1146 	if ((config = zpool_get_config(zhp, NULL)) == NULL) {
1147 		(void) fprintf(stderr, gettext("pool '%s' is unavailable\n"),
1148 		    poolname);
1149 		zpool_close(zhp);
1150 		return (1);
1151 	}
1152 
1153 	/* unless manually specified use "ashift" pool property (if set) */
1154 	if (!nvlist_exists(props, ZPOOL_CONFIG_ASHIFT)) {
1155 		int intval;
1156 		zprop_source_t src;
1157 		char strval[ZPOOL_MAXPROPLEN];
1158 
1159 		intval = zpool_get_prop_int(zhp, ZPOOL_PROP_ASHIFT, &src);
1160 		if (src != ZPROP_SRC_DEFAULT) {
1161 			(void) sprintf(strval, "%" PRId32, intval);
1162 			verify(add_prop_list(ZPOOL_CONFIG_ASHIFT, strval,
1163 			    &props, B_TRUE) == 0);
1164 		}
1165 	}
1166 
1167 	/* pass off to make_root_vdev for processing */
1168 	nvroot = make_root_vdev(zhp, props, !check_inuse,
1169 	    check_replication, B_FALSE, dryrun, argc, argv);
1170 	if (nvroot == NULL) {
1171 		zpool_close(zhp);
1172 		return (1);
1173 	}
1174 
1175 	if (dryrun) {
1176 		nvlist_t *poolnvroot;
1177 		nvlist_t **l2child, **sparechild;
1178 		uint_t l2children, sparechildren, c;
1179 		char *vname;
1180 		boolean_t hadcache = B_FALSE, hadspare = B_FALSE;
1181 
1182 		verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
1183 		    &poolnvroot) == 0);
1184 
1185 		(void) printf(gettext("would update '%s' to the following "
1186 		    "configuration:\n\n"), zpool_get_name(zhp));
1187 
1188 		/* print original main pool and new tree */
1189 		print_vdev_tree(zhp, poolname, poolnvroot, 0, "",
1190 		    name_flags | VDEV_NAME_TYPE_ID);
1191 		print_vdev_tree(zhp, NULL, nvroot, 0, "", name_flags);
1192 
1193 		/* print other classes: 'dedup', 'special', and 'log' */
1194 		if (zfs_special_devs(poolnvroot, VDEV_ALLOC_BIAS_DEDUP)) {
1195 			print_vdev_tree(zhp, "dedup", poolnvroot, 0,
1196 			    VDEV_ALLOC_BIAS_DEDUP, name_flags);
1197 			print_vdev_tree(zhp, NULL, nvroot, 0,
1198 			    VDEV_ALLOC_BIAS_DEDUP, name_flags);
1199 		} else if (zfs_special_devs(nvroot, VDEV_ALLOC_BIAS_DEDUP)) {
1200 			print_vdev_tree(zhp, "dedup", nvroot, 0,
1201 			    VDEV_ALLOC_BIAS_DEDUP, name_flags);
1202 		}
1203 
1204 		if (zfs_special_devs(poolnvroot, VDEV_ALLOC_BIAS_SPECIAL)) {
1205 			print_vdev_tree(zhp, "special", poolnvroot, 0,
1206 			    VDEV_ALLOC_BIAS_SPECIAL, name_flags);
1207 			print_vdev_tree(zhp, NULL, nvroot, 0,
1208 			    VDEV_ALLOC_BIAS_SPECIAL, name_flags);
1209 		} else if (zfs_special_devs(nvroot, VDEV_ALLOC_BIAS_SPECIAL)) {
1210 			print_vdev_tree(zhp, "special", nvroot, 0,
1211 			    VDEV_ALLOC_BIAS_SPECIAL, name_flags);
1212 		}
1213 
1214 		if (num_logs(poolnvroot) > 0) {
1215 			print_vdev_tree(zhp, "logs", poolnvroot, 0,
1216 			    VDEV_ALLOC_BIAS_LOG, name_flags);
1217 			print_vdev_tree(zhp, NULL, nvroot, 0,
1218 			    VDEV_ALLOC_BIAS_LOG, name_flags);
1219 		} else if (num_logs(nvroot) > 0) {
1220 			print_vdev_tree(zhp, "logs", nvroot, 0,
1221 			    VDEV_ALLOC_BIAS_LOG, name_flags);
1222 		}
1223 
1224 		/* Do the same for the caches */
1225 		if (nvlist_lookup_nvlist_array(poolnvroot, ZPOOL_CONFIG_L2CACHE,
1226 		    &l2child, &l2children) == 0 && l2children) {
1227 			hadcache = B_TRUE;
1228 			(void) printf(gettext("\tcache\n"));
1229 			for (c = 0; c < l2children; c++) {
1230 				vname = zpool_vdev_name(g_zfs, NULL,
1231 				    l2child[c], name_flags);
1232 				(void) printf("\t  %s\n", vname);
1233 				free(vname);
1234 			}
1235 		}
1236 		if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_L2CACHE,
1237 		    &l2child, &l2children) == 0 && l2children) {
1238 			if (!hadcache)
1239 				(void) printf(gettext("\tcache\n"));
1240 			for (c = 0; c < l2children; c++) {
1241 				vname = zpool_vdev_name(g_zfs, NULL,
1242 				    l2child[c], name_flags);
1243 				(void) printf("\t  %s\n", vname);
1244 				free(vname);
1245 			}
1246 		}
1247 		/* And finally the spares */
1248 		if (nvlist_lookup_nvlist_array(poolnvroot, ZPOOL_CONFIG_SPARES,
1249 		    &sparechild, &sparechildren) == 0 && sparechildren > 0) {
1250 			hadspare = B_TRUE;
1251 			(void) printf(gettext("\tspares\n"));
1252 			for (c = 0; c < sparechildren; c++) {
1253 				vname = zpool_vdev_name(g_zfs, NULL,
1254 				    sparechild[c], name_flags);
1255 				(void) printf("\t  %s\n", vname);
1256 				free(vname);
1257 			}
1258 		}
1259 		if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES,
1260 		    &sparechild, &sparechildren) == 0 && sparechildren > 0) {
1261 			if (!hadspare)
1262 				(void) printf(gettext("\tspares\n"));
1263 			for (c = 0; c < sparechildren; c++) {
1264 				vname = zpool_vdev_name(g_zfs, NULL,
1265 				    sparechild[c], name_flags);
1266 				(void) printf("\t  %s\n", vname);
1267 				free(vname);
1268 			}
1269 		}
1270 
1271 		ret = 0;
1272 	} else {
1273 		ret = (zpool_add(zhp, nvroot, check_ashift) != 0);
1274 	}
1275 
1276 	nvlist_free(props);
1277 	nvlist_free(nvroot);
1278 	zpool_close(zhp);
1279 
1280 	return (ret);
1281 }
1282 
1283 /*
1284  * zpool remove [-npsw] <pool> <vdev> ...
1285  *
1286  * Removes the given vdev from the pool.
1287  */
1288 int
1289 zpool_do_remove(int argc, char **argv)
1290 {
1291 	char *poolname;
1292 	int i, ret = 0;
1293 	zpool_handle_t *zhp = NULL;
1294 	boolean_t stop = B_FALSE;
1295 	int c;
1296 	boolean_t noop = B_FALSE;
1297 	boolean_t parsable = B_FALSE;
1298 	boolean_t wait = B_FALSE;
1299 
1300 	/* check options */
1301 	while ((c = getopt(argc, argv, "npsw")) != -1) {
1302 		switch (c) {
1303 		case 'n':
1304 			noop = B_TRUE;
1305 			break;
1306 		case 'p':
1307 			parsable = B_TRUE;
1308 			break;
1309 		case 's':
1310 			stop = B_TRUE;
1311 			break;
1312 		case 'w':
1313 			wait = B_TRUE;
1314 			break;
1315 		case '?':
1316 			(void) fprintf(stderr, gettext("invalid option '%c'\n"),
1317 			    optopt);
1318 			usage(B_FALSE);
1319 		}
1320 	}
1321 
1322 	argc -= optind;
1323 	argv += optind;
1324 
1325 	/* get pool name and check number of arguments */
1326 	if (argc < 1) {
1327 		(void) fprintf(stderr, gettext("missing pool name argument\n"));
1328 		usage(B_FALSE);
1329 	}
1330 
1331 	poolname = argv[0];
1332 
1333 	if ((zhp = zpool_open(g_zfs, poolname)) == NULL)
1334 		return (1);
1335 
1336 	if (stop && noop) {
1337 		zpool_close(zhp);
1338 		(void) fprintf(stderr, gettext("stop request ignored\n"));
1339 		return (0);
1340 	}
1341 
1342 	if (stop) {
1343 		if (argc > 1) {
1344 			(void) fprintf(stderr, gettext("too many arguments\n"));
1345 			usage(B_FALSE);
1346 		}
1347 		if (zpool_vdev_remove_cancel(zhp) != 0)
1348 			ret = 1;
1349 		if (wait) {
1350 			(void) fprintf(stderr, gettext("invalid option "
1351 			    "combination: -w cannot be used with -s\n"));
1352 			usage(B_FALSE);
1353 		}
1354 	} else {
1355 		if (argc < 2) {
1356 			(void) fprintf(stderr, gettext("missing device\n"));
1357 			usage(B_FALSE);
1358 		}
1359 
1360 		for (i = 1; i < argc; i++) {
1361 			if (noop) {
1362 				uint64_t size;
1363 
1364 				if (zpool_vdev_indirect_size(zhp, argv[i],
1365 				    &size) != 0) {
1366 					ret = 1;
1367 					break;
1368 				}
1369 				if (parsable) {
1370 					(void) printf("%s %llu\n",
1371 					    argv[i], (unsigned long long)size);
1372 				} else {
1373 					char valstr[32];
1374 					zfs_nicenum(size, valstr,
1375 					    sizeof (valstr));
1376 					(void) printf("Memory that will be "
1377 					    "used after removing %s: %s\n",
1378 					    argv[i], valstr);
1379 				}
1380 			} else {
1381 				if (zpool_vdev_remove(zhp, argv[i]) != 0)
1382 					ret = 1;
1383 			}
1384 		}
1385 
1386 		if (ret == 0 && wait)
1387 			ret = zpool_wait(zhp, ZPOOL_WAIT_REMOVE);
1388 	}
1389 	zpool_close(zhp);
1390 
1391 	return (ret);
1392 }
1393 
1394 /*
1395  * Return 1 if a vdev is active (being used in a pool)
1396  * Return 0 if a vdev is inactive (offlined or faulted, or not in active pool)
1397  *
1398  * This is useful for checking if a disk in an active pool is offlined or
1399  * faulted.
1400  */
1401 static int
1402 vdev_is_active(char *vdev_path)
1403 {
1404 	int fd;
1405 	fd = open(vdev_path, O_EXCL);
1406 	if (fd < 0) {
1407 		return (1);   /* cant open O_EXCL - disk is active */
1408 	}
1409 
1410 	close(fd);
1411 	return (0);   /* disk is inactive in the pool */
1412 }
1413 
1414 /*
1415  * zpool labelclear [-f] <vdev>
1416  *
1417  *	-f	Force clearing the label for the vdevs which are members of
1418  *		the exported or foreign pools.
1419  *
1420  * Verifies that the vdev is not active and zeros out the label information
1421  * on the device.
1422  */
1423 int
1424 zpool_do_labelclear(int argc, char **argv)
1425 {
1426 	char vdev[MAXPATHLEN];
1427 	char *name = NULL;
1428 	int c, fd = -1, ret = 0;
1429 	nvlist_t *config;
1430 	pool_state_t state;
1431 	boolean_t inuse = B_FALSE;
1432 	boolean_t force = B_FALSE;
1433 
1434 	/* check options */
1435 	while ((c = getopt(argc, argv, "f")) != -1) {
1436 		switch (c) {
1437 		case 'f':
1438 			force = B_TRUE;
1439 			break;
1440 		default:
1441 			(void) fprintf(stderr, gettext("invalid option '%c'\n"),
1442 			    optopt);
1443 			usage(B_FALSE);
1444 		}
1445 	}
1446 
1447 	argc -= optind;
1448 	argv += optind;
1449 
1450 	/* get vdev name */
1451 	if (argc < 1) {
1452 		(void) fprintf(stderr, gettext("missing vdev name\n"));
1453 		usage(B_FALSE);
1454 	}
1455 	if (argc > 1) {
1456 		(void) fprintf(stderr, gettext("too many arguments\n"));
1457 		usage(B_FALSE);
1458 	}
1459 
1460 	(void) strlcpy(vdev, argv[0], sizeof (vdev));
1461 
1462 	/*
1463 	 * If we cannot open an absolute path, we quit.
1464 	 * Otherwise if the provided vdev name doesn't point to a file,
1465 	 * try prepending expected disk paths and partition numbers.
1466 	 */
1467 	if ((fd = open(vdev, O_RDWR)) < 0) {
1468 		int error;
1469 		if (vdev[0] == '/') {
1470 			(void) fprintf(stderr, gettext("failed to open "
1471 			    "%s: %s\n"), vdev, strerror(errno));
1472 			return (1);
1473 		}
1474 
1475 		error = zfs_resolve_shortname(argv[0], vdev, MAXPATHLEN);
1476 		if (error == 0 && zfs_dev_is_whole_disk(vdev)) {
1477 			if (zfs_append_partition(vdev, MAXPATHLEN) == -1)
1478 				error = ENOENT;
1479 		}
1480 
1481 		if (error || ((fd = open(vdev, O_RDWR)) < 0)) {
1482 			if (errno == ENOENT) {
1483 				(void) fprintf(stderr, gettext(
1484 				    "failed to find device %s, try "
1485 				    "specifying absolute path instead\n"),
1486 				    argv[0]);
1487 				return (1);
1488 			}
1489 
1490 			(void) fprintf(stderr, gettext("failed to open %s:"
1491 			    " %s\n"), vdev, strerror(errno));
1492 			return (1);
1493 		}
1494 	}
1495 
1496 	/*
1497 	 * Flush all dirty pages for the block device.  This should not be
1498 	 * fatal when the device does not support BLKFLSBUF as would be the
1499 	 * case for a file vdev.
1500 	 */
1501 	if ((zfs_dev_flush(fd) != 0) && (errno != ENOTTY))
1502 		(void) fprintf(stderr, gettext("failed to invalidate "
1503 		    "cache for %s: %s\n"), vdev, strerror(errno));
1504 
1505 	if (zpool_read_label(fd, &config, NULL) != 0) {
1506 		(void) fprintf(stderr,
1507 		    gettext("failed to read label from %s\n"), vdev);
1508 		ret = 1;
1509 		goto errout;
1510 	}
1511 	nvlist_free(config);
1512 
1513 	ret = zpool_in_use(g_zfs, fd, &state, &name, &inuse);
1514 	if (ret != 0) {
1515 		(void) fprintf(stderr,
1516 		    gettext("failed to check state for %s\n"), vdev);
1517 		ret = 1;
1518 		goto errout;
1519 	}
1520 
1521 	if (!inuse)
1522 		goto wipe_label;
1523 
1524 	switch (state) {
1525 	default:
1526 	case POOL_STATE_ACTIVE:
1527 	case POOL_STATE_SPARE:
1528 	case POOL_STATE_L2CACHE:
1529 		/*
1530 		 * We allow the user to call 'zpool offline -f'
1531 		 * on an offlined disk in an active pool. We can check if
1532 		 * the disk is online by calling vdev_is_active().
1533 		 */
1534 		if (force && !vdev_is_active(vdev))
1535 			break;
1536 
1537 		(void) fprintf(stderr, gettext(
1538 		    "%s is a member (%s) of pool \"%s\""),
1539 		    vdev, zpool_pool_state_to_name(state), name);
1540 
1541 		if (force) {
1542 			(void) fprintf(stderr, gettext(
1543 			    ". Offline the disk first to clear its label."));
1544 		}
1545 		printf("\n");
1546 		ret = 1;
1547 		goto errout;
1548 
1549 	case POOL_STATE_EXPORTED:
1550 		if (force)
1551 			break;
1552 		(void) fprintf(stderr, gettext(
1553 		    "use '-f' to override the following error:\n"
1554 		    "%s is a member of exported pool \"%s\"\n"),
1555 		    vdev, name);
1556 		ret = 1;
1557 		goto errout;
1558 
1559 	case POOL_STATE_POTENTIALLY_ACTIVE:
1560 		if (force)
1561 			break;
1562 		(void) fprintf(stderr, gettext(
1563 		    "use '-f' to override the following error:\n"
1564 		    "%s is a member of potentially active pool \"%s\"\n"),
1565 		    vdev, name);
1566 		ret = 1;
1567 		goto errout;
1568 
1569 	case POOL_STATE_DESTROYED:
1570 		/* inuse should never be set for a destroyed pool */
1571 		assert(0);
1572 		break;
1573 	}
1574 
1575 wipe_label:
1576 	ret = zpool_clear_label(fd);
1577 	if (ret != 0) {
1578 		(void) fprintf(stderr,
1579 		    gettext("failed to clear label for %s\n"), vdev);
1580 	}
1581 
1582 errout:
1583 	free(name);
1584 	(void) close(fd);
1585 
1586 	return (ret);
1587 }
1588 
1589 /*
1590  * zpool create [-fnd] [-o property=value] ...
1591  *		[-O file-system-property=value] ...
1592  *		[-R root] [-m mountpoint] <pool> <dev> ...
1593  *
1594  *	-f	Force creation, even if devices appear in use
1595  *	-n	Do not create the pool, but display the resulting layout if it
1596  *		were to be created.
1597  *      -R	Create a pool under an alternate root
1598  *      -m	Set default mountpoint for the root dataset.  By default it's
1599  *		'/<pool>'
1600  *	-o	Set property=value.
1601  *	-o	Set feature@feature=enabled|disabled.
1602  *	-d	Don't automatically enable all supported pool features
1603  *		(individual features can be enabled with -o).
1604  *	-O	Set fsproperty=value in the pool's root file system
1605  *
1606  * Creates the named pool according to the given vdev specification.  The
1607  * bulk of the vdev processing is done in make_root_vdev() in zpool_vdev.c.
1608  * Once we get the nvlist back from make_root_vdev(), we either print out the
1609  * contents (if '-n' was specified), or pass it to libzfs to do the creation.
1610  */
1611 int
1612 zpool_do_create(int argc, char **argv)
1613 {
1614 	boolean_t force = B_FALSE;
1615 	boolean_t dryrun = B_FALSE;
1616 	boolean_t enable_pool_features = B_TRUE;
1617 
1618 	int c;
1619 	nvlist_t *nvroot = NULL;
1620 	char *poolname;
1621 	char *tname = NULL;
1622 	int ret = 1;
1623 	char *altroot = NULL;
1624 	char *compat = NULL;
1625 	char *mountpoint = NULL;
1626 	nvlist_t *fsprops = NULL;
1627 	nvlist_t *props = NULL;
1628 	char *propval;
1629 
1630 	/* check options */
1631 	while ((c = getopt(argc, argv, ":fndR:m:o:O:t:")) != -1) {
1632 		switch (c) {
1633 		case 'f':
1634 			force = B_TRUE;
1635 			break;
1636 		case 'n':
1637 			dryrun = B_TRUE;
1638 			break;
1639 		case 'd':
1640 			enable_pool_features = B_FALSE;
1641 			break;
1642 		case 'R':
1643 			altroot = optarg;
1644 			if (add_prop_list(zpool_prop_to_name(
1645 			    ZPOOL_PROP_ALTROOT), optarg, &props, B_TRUE))
1646 				goto errout;
1647 			if (add_prop_list_default(zpool_prop_to_name(
1648 			    ZPOOL_PROP_CACHEFILE), "none", &props))
1649 				goto errout;
1650 			break;
1651 		case 'm':
1652 			/* Equivalent to -O mountpoint=optarg */
1653 			mountpoint = optarg;
1654 			break;
1655 		case 'o':
1656 			if ((propval = strchr(optarg, '=')) == NULL) {
1657 				(void) fprintf(stderr, gettext("missing "
1658 				    "'=' for -o option\n"));
1659 				goto errout;
1660 			}
1661 			*propval = '\0';
1662 			propval++;
1663 
1664 			if (add_prop_list(optarg, propval, &props, B_TRUE))
1665 				goto errout;
1666 
1667 			/*
1668 			 * If the user is creating a pool that doesn't support
1669 			 * feature flags, don't enable any features.
1670 			 */
1671 			if (zpool_name_to_prop(optarg) == ZPOOL_PROP_VERSION) {
1672 				char *end;
1673 				u_longlong_t ver;
1674 
1675 				ver = strtoull(propval, &end, 10);
1676 				if (*end == '\0' &&
1677 				    ver < SPA_VERSION_FEATURES) {
1678 					enable_pool_features = B_FALSE;
1679 				}
1680 			}
1681 			if (zpool_name_to_prop(optarg) == ZPOOL_PROP_ALTROOT)
1682 				altroot = propval;
1683 			if (zpool_name_to_prop(optarg) ==
1684 			    ZPOOL_PROP_COMPATIBILITY)
1685 				compat = propval;
1686 			break;
1687 		case 'O':
1688 			if ((propval = strchr(optarg, '=')) == NULL) {
1689 				(void) fprintf(stderr, gettext("missing "
1690 				    "'=' for -O option\n"));
1691 				goto errout;
1692 			}
1693 			*propval = '\0';
1694 			propval++;
1695 
1696 			/*
1697 			 * Mountpoints are checked and then added later.
1698 			 * Uniquely among properties, they can be specified
1699 			 * more than once, to avoid conflict with -m.
1700 			 */
1701 			if (0 == strcmp(optarg,
1702 			    zfs_prop_to_name(ZFS_PROP_MOUNTPOINT))) {
1703 				mountpoint = propval;
1704 			} else if (add_prop_list(optarg, propval, &fsprops,
1705 			    B_FALSE)) {
1706 				goto errout;
1707 			}
1708 			break;
1709 		case 't':
1710 			/*
1711 			 * Sanity check temporary pool name.
1712 			 */
1713 			if (strchr(optarg, '/') != NULL) {
1714 				(void) fprintf(stderr, gettext("cannot create "
1715 				    "'%s': invalid character '/' in temporary "
1716 				    "name\n"), optarg);
1717 				(void) fprintf(stderr, gettext("use 'zfs "
1718 				    "create' to create a dataset\n"));
1719 				goto errout;
1720 			}
1721 
1722 			if (add_prop_list(zpool_prop_to_name(
1723 			    ZPOOL_PROP_TNAME), optarg, &props, B_TRUE))
1724 				goto errout;
1725 			if (add_prop_list_default(zpool_prop_to_name(
1726 			    ZPOOL_PROP_CACHEFILE), "none", &props))
1727 				goto errout;
1728 			tname = optarg;
1729 			break;
1730 		case ':':
1731 			(void) fprintf(stderr, gettext("missing argument for "
1732 			    "'%c' option\n"), optopt);
1733 			goto badusage;
1734 		case '?':
1735 			(void) fprintf(stderr, gettext("invalid option '%c'\n"),
1736 			    optopt);
1737 			goto badusage;
1738 		}
1739 	}
1740 
1741 	argc -= optind;
1742 	argv += optind;
1743 
1744 	/* get pool name and check number of arguments */
1745 	if (argc < 1) {
1746 		(void) fprintf(stderr, gettext("missing pool name argument\n"));
1747 		goto badusage;
1748 	}
1749 	if (argc < 2) {
1750 		(void) fprintf(stderr, gettext("missing vdev specification\n"));
1751 		goto badusage;
1752 	}
1753 
1754 	poolname = argv[0];
1755 
1756 	/*
1757 	 * As a special case, check for use of '/' in the name, and direct the
1758 	 * user to use 'zfs create' instead.
1759 	 */
1760 	if (strchr(poolname, '/') != NULL) {
1761 		(void) fprintf(stderr, gettext("cannot create '%s': invalid "
1762 		    "character '/' in pool name\n"), poolname);
1763 		(void) fprintf(stderr, gettext("use 'zfs create' to "
1764 		    "create a dataset\n"));
1765 		goto errout;
1766 	}
1767 
1768 	/* pass off to make_root_vdev for bulk processing */
1769 	nvroot = make_root_vdev(NULL, props, force, !force, B_FALSE, dryrun,
1770 	    argc - 1, argv + 1);
1771 	if (nvroot == NULL)
1772 		goto errout;
1773 
1774 	/* make_root_vdev() allows 0 toplevel children if there are spares */
1775 	if (!zfs_allocatable_devs(nvroot)) {
1776 		(void) fprintf(stderr, gettext("invalid vdev "
1777 		    "specification: at least one toplevel vdev must be "
1778 		    "specified\n"));
1779 		goto errout;
1780 	}
1781 
1782 	if (altroot != NULL && altroot[0] != '/') {
1783 		(void) fprintf(stderr, gettext("invalid alternate root '%s': "
1784 		    "must be an absolute path\n"), altroot);
1785 		goto errout;
1786 	}
1787 
1788 	/*
1789 	 * Check the validity of the mountpoint and direct the user to use the
1790 	 * '-m' mountpoint option if it looks like its in use.
1791 	 */
1792 	if (mountpoint == NULL ||
1793 	    (strcmp(mountpoint, ZFS_MOUNTPOINT_LEGACY) != 0 &&
1794 	    strcmp(mountpoint, ZFS_MOUNTPOINT_NONE) != 0)) {
1795 		char buf[MAXPATHLEN];
1796 		DIR *dirp;
1797 
1798 		if (mountpoint && mountpoint[0] != '/') {
1799 			(void) fprintf(stderr, gettext("invalid mountpoint "
1800 			    "'%s': must be an absolute path, 'legacy', or "
1801 			    "'none'\n"), mountpoint);
1802 			goto errout;
1803 		}
1804 
1805 		if (mountpoint == NULL) {
1806 			if (altroot != NULL)
1807 				(void) snprintf(buf, sizeof (buf), "%s/%s",
1808 				    altroot, poolname);
1809 			else
1810 				(void) snprintf(buf, sizeof (buf), "/%s",
1811 				    poolname);
1812 		} else {
1813 			if (altroot != NULL)
1814 				(void) snprintf(buf, sizeof (buf), "%s%s",
1815 				    altroot, mountpoint);
1816 			else
1817 				(void) snprintf(buf, sizeof (buf), "%s",
1818 				    mountpoint);
1819 		}
1820 
1821 		if ((dirp = opendir(buf)) == NULL && errno != ENOENT) {
1822 			(void) fprintf(stderr, gettext("mountpoint '%s' : "
1823 			    "%s\n"), buf, strerror(errno));
1824 			(void) fprintf(stderr, gettext("use '-m' "
1825 			    "option to provide a different default\n"));
1826 			goto errout;
1827 		} else if (dirp) {
1828 			int count = 0;
1829 
1830 			while (count < 3 && readdir(dirp) != NULL)
1831 				count++;
1832 			(void) closedir(dirp);
1833 
1834 			if (count > 2) {
1835 				(void) fprintf(stderr, gettext("mountpoint "
1836 				    "'%s' exists and is not empty\n"), buf);
1837 				(void) fprintf(stderr, gettext("use '-m' "
1838 				    "option to provide a "
1839 				    "different default\n"));
1840 				goto errout;
1841 			}
1842 		}
1843 	}
1844 
1845 	/*
1846 	 * Now that the mountpoint's validity has been checked, ensure that
1847 	 * the property is set appropriately prior to creating the pool.
1848 	 */
1849 	if (mountpoint != NULL) {
1850 		ret = add_prop_list(zfs_prop_to_name(ZFS_PROP_MOUNTPOINT),
1851 		    mountpoint, &fsprops, B_FALSE);
1852 		if (ret != 0)
1853 			goto errout;
1854 	}
1855 
1856 	ret = 1;
1857 	if (dryrun) {
1858 		/*
1859 		 * For a dry run invocation, print out a basic message and run
1860 		 * through all the vdevs in the list and print out in an
1861 		 * appropriate hierarchy.
1862 		 */
1863 		(void) printf(gettext("would create '%s' with the "
1864 		    "following layout:\n\n"), poolname);
1865 
1866 		print_vdev_tree(NULL, poolname, nvroot, 0, "", 0);
1867 		print_vdev_tree(NULL, "dedup", nvroot, 0,
1868 		    VDEV_ALLOC_BIAS_DEDUP, 0);
1869 		print_vdev_tree(NULL, "special", nvroot, 0,
1870 		    VDEV_ALLOC_BIAS_SPECIAL, 0);
1871 		print_vdev_tree(NULL, "logs", nvroot, 0,
1872 		    VDEV_ALLOC_BIAS_LOG, 0);
1873 		print_cache_list(nvroot, 0);
1874 		print_spare_list(nvroot, 0);
1875 
1876 		ret = 0;
1877 	} else {
1878 		/*
1879 		 * Load in feature set.
1880 		 * Note: if compatibility property not given, we'll have
1881 		 * NULL, which means 'all features'.
1882 		 */
1883 		boolean_t requested_features[SPA_FEATURES];
1884 		if (zpool_do_load_compat(compat, requested_features) !=
1885 		    ZPOOL_COMPATIBILITY_OK)
1886 			goto errout;
1887 
1888 		/*
1889 		 * props contains list of features to enable.
1890 		 * For each feature:
1891 		 *  - remove it if feature@name=disabled
1892 		 *  - leave it there if feature@name=enabled
1893 		 *  - add it if:
1894 		 *    - enable_pool_features (ie: no '-d' or '-o version')
1895 		 *    - it's supported by the kernel module
1896 		 *    - it's in the requested feature set
1897 		 *  - warn if it's enabled but not in compat
1898 		 */
1899 		for (spa_feature_t i = 0; i < SPA_FEATURES; i++) {
1900 			char propname[MAXPATHLEN];
1901 			const char *propval;
1902 			zfeature_info_t *feat = &spa_feature_table[i];
1903 
1904 			(void) snprintf(propname, sizeof (propname),
1905 			    "feature@%s", feat->fi_uname);
1906 
1907 			if (!nvlist_lookup_string(props, propname, &propval)) {
1908 				if (strcmp(propval,
1909 				    ZFS_FEATURE_DISABLED) == 0) {
1910 					(void) nvlist_remove_all(props,
1911 					    propname);
1912 				} else if (strcmp(propval,
1913 				    ZFS_FEATURE_ENABLED) == 0 &&
1914 				    !requested_features[i]) {
1915 					(void) fprintf(stderr, gettext(
1916 					    "Warning: feature \"%s\" enabled "
1917 					    "but is not in specified "
1918 					    "'compatibility' feature set.\n"),
1919 					    feat->fi_uname);
1920 				}
1921 			} else if (
1922 			    enable_pool_features &&
1923 			    feat->fi_zfs_mod_supported &&
1924 			    requested_features[i]) {
1925 				ret = add_prop_list(propname,
1926 				    ZFS_FEATURE_ENABLED, &props, B_TRUE);
1927 				if (ret != 0)
1928 					goto errout;
1929 			}
1930 		}
1931 
1932 		ret = 1;
1933 		if (zpool_create(g_zfs, poolname,
1934 		    nvroot, props, fsprops) == 0) {
1935 			zfs_handle_t *pool = zfs_open(g_zfs,
1936 			    tname ? tname : poolname, ZFS_TYPE_FILESYSTEM);
1937 			if (pool != NULL) {
1938 				if (zfs_mount(pool, NULL, 0) == 0) {
1939 					ret = zfs_share(pool, NULL);
1940 					zfs_commit_shares(NULL);
1941 				}
1942 				zfs_close(pool);
1943 			}
1944 		} else if (libzfs_errno(g_zfs) == EZFS_INVALIDNAME) {
1945 			(void) fprintf(stderr, gettext("pool name may have "
1946 			    "been omitted\n"));
1947 		}
1948 	}
1949 
1950 errout:
1951 	nvlist_free(nvroot);
1952 	nvlist_free(fsprops);
1953 	nvlist_free(props);
1954 	return (ret);
1955 badusage:
1956 	nvlist_free(fsprops);
1957 	nvlist_free(props);
1958 	usage(B_FALSE);
1959 	return (2);
1960 }
1961 
1962 /*
1963  * zpool destroy <pool>
1964  *
1965  * 	-f	Forcefully unmount any datasets
1966  *
1967  * Destroy the given pool.  Automatically unmounts any datasets in the pool.
1968  */
1969 int
1970 zpool_do_destroy(int argc, char **argv)
1971 {
1972 	boolean_t force = B_FALSE;
1973 	int c;
1974 	char *pool;
1975 	zpool_handle_t *zhp;
1976 	int ret;
1977 
1978 	/* check options */
1979 	while ((c = getopt(argc, argv, "f")) != -1) {
1980 		switch (c) {
1981 		case 'f':
1982 			force = B_TRUE;
1983 			break;
1984 		case '?':
1985 			(void) fprintf(stderr, gettext("invalid option '%c'\n"),
1986 			    optopt);
1987 			usage(B_FALSE);
1988 		}
1989 	}
1990 
1991 	argc -= optind;
1992 	argv += optind;
1993 
1994 	/* check arguments */
1995 	if (argc < 1) {
1996 		(void) fprintf(stderr, gettext("missing pool argument\n"));
1997 		usage(B_FALSE);
1998 	}
1999 	if (argc > 1) {
2000 		(void) fprintf(stderr, gettext("too many arguments\n"));
2001 		usage(B_FALSE);
2002 	}
2003 
2004 	pool = argv[0];
2005 
2006 	if ((zhp = zpool_open_canfail(g_zfs, pool)) == NULL) {
2007 		/*
2008 		 * As a special case, check for use of '/' in the name, and
2009 		 * direct the user to use 'zfs destroy' instead.
2010 		 */
2011 		if (strchr(pool, '/') != NULL)
2012 			(void) fprintf(stderr, gettext("use 'zfs destroy' to "
2013 			    "destroy a dataset\n"));
2014 		return (1);
2015 	}
2016 
2017 	if (zpool_disable_datasets(zhp, force) != 0) {
2018 		(void) fprintf(stderr, gettext("could not destroy '%s': "
2019 		    "could not unmount datasets\n"), zpool_get_name(zhp));
2020 		zpool_close(zhp);
2021 		return (1);
2022 	}
2023 
2024 	/* The history must be logged as part of the export */
2025 	log_history = B_FALSE;
2026 
2027 	ret = (zpool_destroy(zhp, history_str) != 0);
2028 
2029 	zpool_close(zhp);
2030 
2031 	return (ret);
2032 }
2033 
2034 typedef struct export_cbdata {
2035 	tpool_t *tpool;
2036 	pthread_mutex_t mnttab_lock;
2037 	boolean_t force;
2038 	boolean_t hardforce;
2039 	int retval;
2040 } export_cbdata_t;
2041 
2042 
2043 typedef struct {
2044 	char *aea_poolname;
2045 	export_cbdata_t	*aea_cbdata;
2046 } async_export_args_t;
2047 
2048 /*
2049  * Export one pool
2050  */
2051 static int
2052 zpool_export_one(zpool_handle_t *zhp, void *data)
2053 {
2054 	export_cbdata_t *cb = data;
2055 
2056 	/*
2057 	 * zpool_disable_datasets() is not thread-safe for mnttab access.
2058 	 * So we serialize access here for 'zpool export -a' parallel case.
2059 	 */
2060 	if (cb->tpool != NULL)
2061 		pthread_mutex_lock(&cb->mnttab_lock);
2062 
2063 	int retval = zpool_disable_datasets(zhp, cb->force);
2064 
2065 	if (cb->tpool != NULL)
2066 		pthread_mutex_unlock(&cb->mnttab_lock);
2067 
2068 	if (retval)
2069 		return (1);
2070 
2071 	if (cb->hardforce) {
2072 		if (zpool_export_force(zhp, history_str) != 0)
2073 			return (1);
2074 	} else if (zpool_export(zhp, cb->force, history_str) != 0) {
2075 		return (1);
2076 	}
2077 
2078 	return (0);
2079 }
2080 
2081 /*
2082  * Asynchronous export request
2083  */
2084 static void
2085 zpool_export_task(void *arg)
2086 {
2087 	async_export_args_t *aea = arg;
2088 
2089 	zpool_handle_t *zhp = zpool_open(g_zfs, aea->aea_poolname);
2090 	if (zhp != NULL) {
2091 		int ret = zpool_export_one(zhp, aea->aea_cbdata);
2092 		if (ret != 0)
2093 			aea->aea_cbdata->retval = ret;
2094 		zpool_close(zhp);
2095 	} else {
2096 		aea->aea_cbdata->retval = 1;
2097 	}
2098 
2099 	free(aea->aea_poolname);
2100 	free(aea);
2101 }
2102 
2103 /*
2104  * Process an export request in parallel
2105  */
2106 static int
2107 zpool_export_one_async(zpool_handle_t *zhp, void *data)
2108 {
2109 	tpool_t *tpool = ((export_cbdata_t *)data)->tpool;
2110 	async_export_args_t *aea = safe_malloc(sizeof (async_export_args_t));
2111 
2112 	/* save pool name since zhp will go out of scope */
2113 	aea->aea_poolname = strdup(zpool_get_name(zhp));
2114 	aea->aea_cbdata = data;
2115 
2116 	/* ship off actual export to another thread */
2117 	if (tpool_dispatch(tpool, zpool_export_task, (void *)aea) != 0)
2118 		return (errno);	/* unlikely */
2119 	else
2120 		return (0);
2121 }
2122 
2123 /*
2124  * zpool export [-f] <pool> ...
2125  *
2126  *	-a	Export all pools
2127  *	-f	Forcefully unmount datasets
2128  *
2129  * Export the given pools.  By default, the command will attempt to cleanly
2130  * unmount any active datasets within the pool.  If the '-f' flag is specified,
2131  * then the datasets will be forcefully unmounted.
2132  */
2133 int
2134 zpool_do_export(int argc, char **argv)
2135 {
2136 	export_cbdata_t cb;
2137 	boolean_t do_all = B_FALSE;
2138 	boolean_t force = B_FALSE;
2139 	boolean_t hardforce = B_FALSE;
2140 	int c, ret;
2141 
2142 	/* check options */
2143 	while ((c = getopt(argc, argv, "afF")) != -1) {
2144 		switch (c) {
2145 		case 'a':
2146 			do_all = B_TRUE;
2147 			break;
2148 		case 'f':
2149 			force = B_TRUE;
2150 			break;
2151 		case 'F':
2152 			hardforce = B_TRUE;
2153 			break;
2154 		case '?':
2155 			(void) fprintf(stderr, gettext("invalid option '%c'\n"),
2156 			    optopt);
2157 			usage(B_FALSE);
2158 		}
2159 	}
2160 
2161 	cb.force = force;
2162 	cb.hardforce = hardforce;
2163 	cb.tpool = NULL;
2164 	cb.retval = 0;
2165 	argc -= optind;
2166 	argv += optind;
2167 
2168 	/* The history will be logged as part of the export itself */
2169 	log_history = B_FALSE;
2170 
2171 	if (do_all) {
2172 		if (argc != 0) {
2173 			(void) fprintf(stderr, gettext("too many arguments\n"));
2174 			usage(B_FALSE);
2175 		}
2176 
2177 		cb.tpool = tpool_create(1, 5 * sysconf(_SC_NPROCESSORS_ONLN),
2178 		    0, NULL);
2179 		pthread_mutex_init(&cb.mnttab_lock, NULL);
2180 
2181 		/* Asynchronously call zpool_export_one using thread pool */
2182 		ret = for_each_pool(argc, argv, B_TRUE, NULL, ZFS_TYPE_POOL,
2183 		    B_FALSE, zpool_export_one_async, &cb);
2184 
2185 		tpool_wait(cb.tpool);
2186 		tpool_destroy(cb.tpool);
2187 		(void) pthread_mutex_destroy(&cb.mnttab_lock);
2188 
2189 		return (ret | cb.retval);
2190 	}
2191 
2192 	/* check arguments */
2193 	if (argc < 1) {
2194 		(void) fprintf(stderr, gettext("missing pool argument\n"));
2195 		usage(B_FALSE);
2196 	}
2197 
2198 	ret = for_each_pool(argc, argv, B_TRUE, NULL, ZFS_TYPE_POOL,
2199 	    B_FALSE, zpool_export_one, &cb);
2200 
2201 	return (ret);
2202 }
2203 
2204 /*
2205  * Given a vdev configuration, determine the maximum width needed for the device
2206  * name column.
2207  */
2208 static int
2209 max_width(zpool_handle_t *zhp, nvlist_t *nv, int depth, int max,
2210     int name_flags)
2211 {
2212 	static const char *const subtypes[] =
2213 	    {ZPOOL_CONFIG_SPARES, ZPOOL_CONFIG_L2CACHE, ZPOOL_CONFIG_CHILDREN};
2214 
2215 	char *name = zpool_vdev_name(g_zfs, zhp, nv, name_flags);
2216 	max = MAX(strlen(name) + depth, max);
2217 	free(name);
2218 
2219 	nvlist_t **child;
2220 	uint_t children;
2221 	for (size_t i = 0; i < ARRAY_SIZE(subtypes); ++i)
2222 		if (nvlist_lookup_nvlist_array(nv, subtypes[i],
2223 		    &child, &children) == 0)
2224 			for (uint_t c = 0; c < children; ++c)
2225 				max = MAX(max_width(zhp, child[c], depth + 2,
2226 				    max, name_flags), max);
2227 
2228 	return (max);
2229 }
2230 
2231 typedef struct spare_cbdata {
2232 	uint64_t	cb_guid;
2233 	zpool_handle_t	*cb_zhp;
2234 } spare_cbdata_t;
2235 
2236 static boolean_t
2237 find_vdev(nvlist_t *nv, uint64_t search)
2238 {
2239 	uint64_t guid;
2240 	nvlist_t **child;
2241 	uint_t c, children;
2242 
2243 	if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_GUID, &guid) == 0 &&
2244 	    search == guid)
2245 		return (B_TRUE);
2246 
2247 	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
2248 	    &child, &children) == 0) {
2249 		for (c = 0; c < children; c++)
2250 			if (find_vdev(child[c], search))
2251 				return (B_TRUE);
2252 	}
2253 
2254 	return (B_FALSE);
2255 }
2256 
2257 static int
2258 find_spare(zpool_handle_t *zhp, void *data)
2259 {
2260 	spare_cbdata_t *cbp = data;
2261 	nvlist_t *config, *nvroot;
2262 
2263 	config = zpool_get_config(zhp, NULL);
2264 	verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
2265 	    &nvroot) == 0);
2266 
2267 	if (find_vdev(nvroot, cbp->cb_guid)) {
2268 		cbp->cb_zhp = zhp;
2269 		return (1);
2270 	}
2271 
2272 	zpool_close(zhp);
2273 	return (0);
2274 }
2275 
2276 typedef struct status_cbdata {
2277 	int		cb_count;
2278 	int		cb_name_flags;
2279 	int		cb_namewidth;
2280 	boolean_t	cb_allpools;
2281 	boolean_t	cb_verbose;
2282 	boolean_t	cb_literal;
2283 	boolean_t	cb_explain;
2284 	boolean_t	cb_first;
2285 	boolean_t	cb_dedup_stats;
2286 	boolean_t	cb_print_unhealthy;
2287 	boolean_t	cb_print_status;
2288 	boolean_t	cb_print_slow_ios;
2289 	boolean_t	cb_print_vdev_init;
2290 	boolean_t	cb_print_vdev_trim;
2291 	vdev_cmd_data_list_t	*vcdl;
2292 	boolean_t	cb_print_power;
2293 } status_cbdata_t;
2294 
2295 /* Return 1 if string is NULL, empty, or whitespace; return 0 otherwise. */
2296 static boolean_t
2297 is_blank_str(const char *str)
2298 {
2299 	for (; str != NULL && *str != '\0'; ++str)
2300 		if (!isblank(*str))
2301 			return (B_FALSE);
2302 	return (B_TRUE);
2303 }
2304 
2305 /* Print command output lines for specific vdev in a specific pool */
2306 static void
2307 zpool_print_cmd(vdev_cmd_data_list_t *vcdl, const char *pool, const char *path)
2308 {
2309 	vdev_cmd_data_t *data;
2310 	int i, j;
2311 	const char *val;
2312 
2313 	for (i = 0; i < vcdl->count; i++) {
2314 		if ((strcmp(vcdl->data[i].path, path) != 0) ||
2315 		    (strcmp(vcdl->data[i].pool, pool) != 0)) {
2316 			/* Not the vdev we're looking for */
2317 			continue;
2318 		}
2319 
2320 		data = &vcdl->data[i];
2321 		/* Print out all the output values for this vdev */
2322 		for (j = 0; j < vcdl->uniq_cols_cnt; j++) {
2323 			val = NULL;
2324 			/* Does this vdev have values for this column? */
2325 			for (int k = 0; k < data->cols_cnt; k++) {
2326 				if (strcmp(data->cols[k],
2327 				    vcdl->uniq_cols[j]) == 0) {
2328 					/* yes it does, record the value */
2329 					val = data->lines[k];
2330 					break;
2331 				}
2332 			}
2333 			/*
2334 			 * Mark empty values with dashes to make output
2335 			 * awk-able.
2336 			 */
2337 			if (val == NULL || is_blank_str(val))
2338 				val = "-";
2339 
2340 			printf("%*s", vcdl->uniq_cols_width[j], val);
2341 			if (j < vcdl->uniq_cols_cnt - 1)
2342 				fputs("  ", stdout);
2343 		}
2344 
2345 		/* Print out any values that aren't in a column at the end */
2346 		for (j = data->cols_cnt; j < data->lines_cnt; j++) {
2347 			/* Did we have any columns?  If so print a spacer. */
2348 			if (vcdl->uniq_cols_cnt > 0)
2349 				fputs("  ", stdout);
2350 
2351 			val = data->lines[j];
2352 			fputs(val ?: "", stdout);
2353 		}
2354 		break;
2355 	}
2356 }
2357 
2358 /*
2359  * Print vdev initialization status for leaves
2360  */
2361 static void
2362 print_status_initialize(vdev_stat_t *vs, boolean_t verbose)
2363 {
2364 	if (verbose) {
2365 		if ((vs->vs_initialize_state == VDEV_INITIALIZE_ACTIVE ||
2366 		    vs->vs_initialize_state == VDEV_INITIALIZE_SUSPENDED ||
2367 		    vs->vs_initialize_state == VDEV_INITIALIZE_COMPLETE) &&
2368 		    !vs->vs_scan_removing) {
2369 			char zbuf[1024];
2370 			char tbuf[256];
2371 
2372 			time_t t = vs->vs_initialize_action_time;
2373 			int initialize_pct = 100;
2374 			if (vs->vs_initialize_state !=
2375 			    VDEV_INITIALIZE_COMPLETE) {
2376 				initialize_pct = (vs->vs_initialize_bytes_done *
2377 				    100 / (vs->vs_initialize_bytes_est + 1));
2378 			}
2379 
2380 			(void) ctime_r(&t, tbuf);
2381 			tbuf[24] = 0;
2382 
2383 			switch (vs->vs_initialize_state) {
2384 			case VDEV_INITIALIZE_SUSPENDED:
2385 				(void) snprintf(zbuf, sizeof (zbuf), ", %s %s",
2386 				    gettext("suspended, started at"), tbuf);
2387 				break;
2388 			case VDEV_INITIALIZE_ACTIVE:
2389 				(void) snprintf(zbuf, sizeof (zbuf), ", %s %s",
2390 				    gettext("started at"), tbuf);
2391 				break;
2392 			case VDEV_INITIALIZE_COMPLETE:
2393 				(void) snprintf(zbuf, sizeof (zbuf), ", %s %s",
2394 				    gettext("completed at"), tbuf);
2395 				break;
2396 			}
2397 
2398 			(void) printf(gettext("  (%d%% initialized%s)"),
2399 			    initialize_pct, zbuf);
2400 		} else {
2401 			(void) printf(gettext("  (uninitialized)"));
2402 		}
2403 	} else if (vs->vs_initialize_state == VDEV_INITIALIZE_ACTIVE) {
2404 		(void) printf(gettext("  (initializing)"));
2405 	}
2406 }
2407 
2408 /*
2409  * Print vdev TRIM status for leaves
2410  */
2411 static void
2412 print_status_trim(vdev_stat_t *vs, boolean_t verbose)
2413 {
2414 	if (verbose) {
2415 		if ((vs->vs_trim_state == VDEV_TRIM_ACTIVE ||
2416 		    vs->vs_trim_state == VDEV_TRIM_SUSPENDED ||
2417 		    vs->vs_trim_state == VDEV_TRIM_COMPLETE) &&
2418 		    !vs->vs_scan_removing) {
2419 			char zbuf[1024];
2420 			char tbuf[256];
2421 
2422 			time_t t = vs->vs_trim_action_time;
2423 			int trim_pct = 100;
2424 			if (vs->vs_trim_state != VDEV_TRIM_COMPLETE) {
2425 				trim_pct = (vs->vs_trim_bytes_done *
2426 				    100 / (vs->vs_trim_bytes_est + 1));
2427 			}
2428 
2429 			(void) ctime_r(&t, tbuf);
2430 			tbuf[24] = 0;
2431 
2432 			switch (vs->vs_trim_state) {
2433 			case VDEV_TRIM_SUSPENDED:
2434 				(void) snprintf(zbuf, sizeof (zbuf), ", %s %s",
2435 				    gettext("suspended, started at"), tbuf);
2436 				break;
2437 			case VDEV_TRIM_ACTIVE:
2438 				(void) snprintf(zbuf, sizeof (zbuf), ", %s %s",
2439 				    gettext("started at"), tbuf);
2440 				break;
2441 			case VDEV_TRIM_COMPLETE:
2442 				(void) snprintf(zbuf, sizeof (zbuf), ", %s %s",
2443 				    gettext("completed at"), tbuf);
2444 				break;
2445 			}
2446 
2447 			(void) printf(gettext("  (%d%% trimmed%s)"),
2448 			    trim_pct, zbuf);
2449 		} else if (vs->vs_trim_notsup) {
2450 			(void) printf(gettext("  (trim unsupported)"));
2451 		} else {
2452 			(void) printf(gettext("  (untrimmed)"));
2453 		}
2454 	} else if (vs->vs_trim_state == VDEV_TRIM_ACTIVE) {
2455 		(void) printf(gettext("  (trimming)"));
2456 	}
2457 }
2458 
2459 /*
2460  * Return the color associated with a health string.  This includes returning
2461  * NULL for no color change.
2462  */
2463 static const char *
2464 health_str_to_color(const char *health)
2465 {
2466 	if (strcmp(health, gettext("FAULTED")) == 0 ||
2467 	    strcmp(health, gettext("SUSPENDED")) == 0 ||
2468 	    strcmp(health, gettext("UNAVAIL")) == 0) {
2469 		return (ANSI_RED);
2470 	}
2471 
2472 	if (strcmp(health, gettext("OFFLINE")) == 0 ||
2473 	    strcmp(health, gettext("DEGRADED")) == 0 ||
2474 	    strcmp(health, gettext("REMOVED")) == 0) {
2475 		return (ANSI_YELLOW);
2476 	}
2477 
2478 	return (NULL);
2479 }
2480 
2481 /*
2482  * Called for each leaf vdev.  Returns 0 if the vdev is healthy.
2483  * A vdev is unhealthy if any of the following are true:
2484  * 1) there are read, write, or checksum errors,
2485  * 2) its state is not ONLINE, or
2486  * 3) slow IO reporting was requested (-s) and there are slow IOs.
2487  */
2488 static int
2489 vdev_health_check_cb(void *hdl_data, nvlist_t *nv, void *data)
2490 {
2491 	status_cbdata_t *cb = data;
2492 	vdev_stat_t *vs;
2493 	uint_t vsc;
2494 	(void) hdl_data;
2495 
2496 	if (nvlist_lookup_uint64_array(nv, ZPOOL_CONFIG_VDEV_STATS,
2497 	    (uint64_t **)&vs, &vsc) != 0)
2498 		return (1);
2499 
2500 	if (vs->vs_checksum_errors || vs->vs_read_errors ||
2501 	    vs->vs_write_errors || vs->vs_state != VDEV_STATE_HEALTHY)
2502 		return (1);
2503 
2504 	if (cb->cb_print_slow_ios && vs->vs_slow_ios)
2505 		return (1);
2506 
2507 	return (0);
2508 }
2509 
2510 /*
2511  * Print out configuration state as requested by status_callback.
2512  */
2513 static void
2514 print_status_config(zpool_handle_t *zhp, status_cbdata_t *cb, const char *name,
2515     nvlist_t *nv, int depth, boolean_t isspare, vdev_rebuild_stat_t *vrs)
2516 {
2517 	nvlist_t **child, *root;
2518 	uint_t c, i, vsc, children;
2519 	pool_scan_stat_t *ps = NULL;
2520 	vdev_stat_t *vs;
2521 	char rbuf[6], wbuf[6], cbuf[6];
2522 	char *vname;
2523 	uint64_t notpresent;
2524 	spare_cbdata_t spare_cb;
2525 	const char *state;
2526 	const char *type;
2527 	const char *path = NULL;
2528 	const char *rcolor = NULL, *wcolor = NULL, *ccolor = NULL,
2529 	    *scolor = NULL;
2530 
2531 	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
2532 	    &child, &children) != 0)
2533 		children = 0;
2534 
2535 	verify(nvlist_lookup_uint64_array(nv, ZPOOL_CONFIG_VDEV_STATS,
2536 	    (uint64_t **)&vs, &vsc) == 0);
2537 
2538 	verify(nvlist_lookup_string(nv, ZPOOL_CONFIG_TYPE, &type) == 0);
2539 
2540 	if (strcmp(type, VDEV_TYPE_INDIRECT) == 0)
2541 		return;
2542 
2543 	state = zpool_state_to_name(vs->vs_state, vs->vs_aux);
2544 
2545 	if (isspare) {
2546 		/*
2547 		 * For hot spares, we use the terms 'INUSE' and 'AVAILABLE' for
2548 		 * online drives.
2549 		 */
2550 		if (vs->vs_aux == VDEV_AUX_SPARED)
2551 			state = gettext("INUSE");
2552 		else if (vs->vs_state == VDEV_STATE_HEALTHY)
2553 			state = gettext("AVAIL");
2554 	}
2555 
2556 	/*
2557 	 * If '-e' is specified then top-level vdevs and their children
2558 	 * can be pruned if all of their leaves are healthy.
2559 	 */
2560 	if (cb->cb_print_unhealthy && depth > 0 &&
2561 	    for_each_vdev_in_nvlist(nv, vdev_health_check_cb, cb) == 0) {
2562 		return;
2563 	}
2564 
2565 	printf_color(health_str_to_color(state),
2566 	    "\t%*s%-*s  %-8s", depth, "", cb->cb_namewidth - depth,
2567 	    name, state);
2568 
2569 	if (!isspare) {
2570 		if (vs->vs_read_errors)
2571 			rcolor = ANSI_RED;
2572 
2573 		if (vs->vs_write_errors)
2574 			wcolor = ANSI_RED;
2575 
2576 		if (vs->vs_checksum_errors)
2577 			ccolor = ANSI_RED;
2578 
2579 		if (vs->vs_slow_ios)
2580 			scolor = ANSI_BLUE;
2581 
2582 		if (cb->cb_literal) {
2583 			fputc(' ', stdout);
2584 			printf_color(rcolor, "%5llu",
2585 			    (u_longlong_t)vs->vs_read_errors);
2586 			fputc(' ', stdout);
2587 			printf_color(wcolor, "%5llu",
2588 			    (u_longlong_t)vs->vs_write_errors);
2589 			fputc(' ', stdout);
2590 			printf_color(ccolor, "%5llu",
2591 			    (u_longlong_t)vs->vs_checksum_errors);
2592 		} else {
2593 			zfs_nicenum(vs->vs_read_errors, rbuf, sizeof (rbuf));
2594 			zfs_nicenum(vs->vs_write_errors, wbuf, sizeof (wbuf));
2595 			zfs_nicenum(vs->vs_checksum_errors, cbuf,
2596 			    sizeof (cbuf));
2597 			fputc(' ', stdout);
2598 			printf_color(rcolor, "%5s", rbuf);
2599 			fputc(' ', stdout);
2600 			printf_color(wcolor, "%5s", wbuf);
2601 			fputc(' ', stdout);
2602 			printf_color(ccolor, "%5s", cbuf);
2603 		}
2604 		if (cb->cb_print_slow_ios) {
2605 			if (children == 0)  {
2606 				/* Only leafs vdevs have slow IOs */
2607 				zfs_nicenum(vs->vs_slow_ios, rbuf,
2608 				    sizeof (rbuf));
2609 			} else {
2610 				snprintf(rbuf, sizeof (rbuf), "-");
2611 			}
2612 
2613 			if (cb->cb_literal)
2614 				printf_color(scolor, " %5llu",
2615 				    (u_longlong_t)vs->vs_slow_ios);
2616 			else
2617 				printf_color(scolor, " %5s", rbuf);
2618 		}
2619 		if (cb->cb_print_power) {
2620 			if (children == 0)  {
2621 				/* Only leaf vdevs have physical slots */
2622 				switch (zpool_power_current_state(zhp, (char *)
2623 				    fnvlist_lookup_string(nv,
2624 				    ZPOOL_CONFIG_PATH))) {
2625 				case 0:
2626 					printf_color(ANSI_RED, " %5s",
2627 					    gettext("off"));
2628 					break;
2629 				case 1:
2630 					printf(" %5s", gettext("on"));
2631 					break;
2632 				default:
2633 					printf(" %5s", "-");
2634 				}
2635 			} else {
2636 				printf(" %5s", "-");
2637 			}
2638 		}
2639 	}
2640 
2641 	if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_NOT_PRESENT,
2642 	    &notpresent) == 0) {
2643 		verify(nvlist_lookup_string(nv, ZPOOL_CONFIG_PATH, &path) == 0);
2644 		(void) printf("  %s %s", gettext("was"), path);
2645 	} else if (vs->vs_aux != 0) {
2646 		(void) printf("  ");
2647 		color_start(ANSI_RED);
2648 		switch (vs->vs_aux) {
2649 		case VDEV_AUX_OPEN_FAILED:
2650 			(void) printf(gettext("cannot open"));
2651 			break;
2652 
2653 		case VDEV_AUX_BAD_GUID_SUM:
2654 			(void) printf(gettext("missing device"));
2655 			break;
2656 
2657 		case VDEV_AUX_NO_REPLICAS:
2658 			(void) printf(gettext("insufficient replicas"));
2659 			break;
2660 
2661 		case VDEV_AUX_VERSION_NEWER:
2662 			(void) printf(gettext("newer version"));
2663 			break;
2664 
2665 		case VDEV_AUX_UNSUP_FEAT:
2666 			(void) printf(gettext("unsupported feature(s)"));
2667 			break;
2668 
2669 		case VDEV_AUX_ASHIFT_TOO_BIG:
2670 			(void) printf(gettext("unsupported minimum blocksize"));
2671 			break;
2672 
2673 		case VDEV_AUX_SPARED:
2674 			verify(nvlist_lookup_uint64(nv, ZPOOL_CONFIG_GUID,
2675 			    &spare_cb.cb_guid) == 0);
2676 			if (zpool_iter(g_zfs, find_spare, &spare_cb) == 1) {
2677 				if (strcmp(zpool_get_name(spare_cb.cb_zhp),
2678 				    zpool_get_name(zhp)) == 0)
2679 					(void) printf(gettext("currently in "
2680 					    "use"));
2681 				else
2682 					(void) printf(gettext("in use by "
2683 					    "pool '%s'"),
2684 					    zpool_get_name(spare_cb.cb_zhp));
2685 				zpool_close(spare_cb.cb_zhp);
2686 			} else {
2687 				(void) printf(gettext("currently in use"));
2688 			}
2689 			break;
2690 
2691 		case VDEV_AUX_ERR_EXCEEDED:
2692 			if (vs->vs_read_errors + vs->vs_write_errors +
2693 			    vs->vs_checksum_errors == 0 && children == 0 &&
2694 			    vs->vs_slow_ios > 0) {
2695 				(void) printf(gettext("too many slow I/Os"));
2696 			} else {
2697 				(void) printf(gettext("too many errors"));
2698 			}
2699 			break;
2700 
2701 		case VDEV_AUX_IO_FAILURE:
2702 			(void) printf(gettext("experienced I/O failures"));
2703 			break;
2704 
2705 		case VDEV_AUX_BAD_LOG:
2706 			(void) printf(gettext("bad intent log"));
2707 			break;
2708 
2709 		case VDEV_AUX_EXTERNAL:
2710 			(void) printf(gettext("external device fault"));
2711 			break;
2712 
2713 		case VDEV_AUX_SPLIT_POOL:
2714 			(void) printf(gettext("split into new pool"));
2715 			break;
2716 
2717 		case VDEV_AUX_ACTIVE:
2718 			(void) printf(gettext("currently in use"));
2719 			break;
2720 
2721 		case VDEV_AUX_CHILDREN_OFFLINE:
2722 			(void) printf(gettext("all children offline"));
2723 			break;
2724 
2725 		case VDEV_AUX_BAD_LABEL:
2726 			(void) printf(gettext("invalid label"));
2727 			break;
2728 
2729 		default:
2730 			(void) printf(gettext("corrupted data"));
2731 			break;
2732 		}
2733 		color_end();
2734 	} else if (children == 0 && !isspare &&
2735 	    getenv("ZPOOL_STATUS_NON_NATIVE_ASHIFT_IGNORE") == NULL &&
2736 	    VDEV_STAT_VALID(vs_physical_ashift, vsc) &&
2737 	    vs->vs_configured_ashift < vs->vs_physical_ashift) {
2738 		(void) printf(
2739 		    gettext("  block size: %dB configured, %dB native"),
2740 		    1 << vs->vs_configured_ashift, 1 << vs->vs_physical_ashift);
2741 	}
2742 
2743 	if (vs->vs_scan_removing != 0) {
2744 		(void) printf(gettext("  (removing)"));
2745 	} else if (VDEV_STAT_VALID(vs_noalloc, vsc) && vs->vs_noalloc != 0) {
2746 		(void) printf(gettext("  (non-allocating)"));
2747 	}
2748 
2749 	/* The root vdev has the scrub/resilver stats */
2750 	root = fnvlist_lookup_nvlist(zpool_get_config(zhp, NULL),
2751 	    ZPOOL_CONFIG_VDEV_TREE);
2752 	(void) nvlist_lookup_uint64_array(root, ZPOOL_CONFIG_SCAN_STATS,
2753 	    (uint64_t **)&ps, &c);
2754 
2755 	/*
2756 	 * If you force fault a drive that's resilvering, its scan stats can
2757 	 * get frozen in time, giving the false impression that it's
2758 	 * being resilvered.  That's why we check the state to see if the vdev
2759 	 * is healthy before reporting "resilvering" or "repairing".
2760 	 */
2761 	if (ps != NULL && ps->pss_state == DSS_SCANNING && children == 0 &&
2762 	    vs->vs_state == VDEV_STATE_HEALTHY) {
2763 		if (vs->vs_scan_processed != 0) {
2764 			(void) printf(gettext("  (%s)"),
2765 			    (ps->pss_func == POOL_SCAN_RESILVER) ?
2766 			    "resilvering" : "repairing");
2767 		} else if (vs->vs_resilver_deferred) {
2768 			(void) printf(gettext("  (awaiting resilver)"));
2769 		}
2770 	}
2771 
2772 	/* The top-level vdevs have the rebuild stats */
2773 	if (vrs != NULL && vrs->vrs_state == VDEV_REBUILD_ACTIVE &&
2774 	    children == 0 && vs->vs_state == VDEV_STATE_HEALTHY) {
2775 		if (vs->vs_rebuild_processed != 0) {
2776 			(void) printf(gettext("  (resilvering)"));
2777 		}
2778 	}
2779 
2780 	if (cb->vcdl != NULL) {
2781 		if (nvlist_lookup_string(nv, ZPOOL_CONFIG_PATH, &path) == 0) {
2782 			printf("  ");
2783 			zpool_print_cmd(cb->vcdl, zpool_get_name(zhp), path);
2784 		}
2785 	}
2786 
2787 	/* Display vdev initialization and trim status for leaves. */
2788 	if (children == 0) {
2789 		print_status_initialize(vs, cb->cb_print_vdev_init);
2790 		print_status_trim(vs, cb->cb_print_vdev_trim);
2791 	}
2792 
2793 	(void) printf("\n");
2794 
2795 	for (c = 0; c < children; c++) {
2796 		uint64_t islog = B_FALSE, ishole = B_FALSE;
2797 
2798 		/* Don't print logs or holes here */
2799 		(void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_LOG,
2800 		    &islog);
2801 		(void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_HOLE,
2802 		    &ishole);
2803 		if (islog || ishole)
2804 			continue;
2805 		/* Only print normal classes here */
2806 		if (nvlist_exists(child[c], ZPOOL_CONFIG_ALLOCATION_BIAS))
2807 			continue;
2808 
2809 		/* Provide vdev_rebuild_stats to children if available */
2810 		if (vrs == NULL) {
2811 			(void) nvlist_lookup_uint64_array(nv,
2812 			    ZPOOL_CONFIG_REBUILD_STATS,
2813 			    (uint64_t **)&vrs, &i);
2814 		}
2815 
2816 		vname = zpool_vdev_name(g_zfs, zhp, child[c],
2817 		    cb->cb_name_flags | VDEV_NAME_TYPE_ID);
2818 		print_status_config(zhp, cb, vname, child[c], depth + 2,
2819 		    isspare, vrs);
2820 		free(vname);
2821 	}
2822 }
2823 
2824 /*
2825  * Print the configuration of an exported pool.  Iterate over all vdevs in the
2826  * pool, printing out the name and status for each one.
2827  */
2828 static void
2829 print_import_config(status_cbdata_t *cb, const char *name, nvlist_t *nv,
2830     int depth)
2831 {
2832 	nvlist_t **child;
2833 	uint_t c, children;
2834 	vdev_stat_t *vs;
2835 	const char *type;
2836 	char *vname;
2837 
2838 	verify(nvlist_lookup_string(nv, ZPOOL_CONFIG_TYPE, &type) == 0);
2839 	if (strcmp(type, VDEV_TYPE_MISSING) == 0 ||
2840 	    strcmp(type, VDEV_TYPE_HOLE) == 0)
2841 		return;
2842 
2843 	verify(nvlist_lookup_uint64_array(nv, ZPOOL_CONFIG_VDEV_STATS,
2844 	    (uint64_t **)&vs, &c) == 0);
2845 
2846 	(void) printf("\t%*s%-*s", depth, "", cb->cb_namewidth - depth, name);
2847 	(void) printf("  %s", zpool_state_to_name(vs->vs_state, vs->vs_aux));
2848 
2849 	if (vs->vs_aux != 0) {
2850 		(void) printf("  ");
2851 
2852 		switch (vs->vs_aux) {
2853 		case VDEV_AUX_OPEN_FAILED:
2854 			(void) printf(gettext("cannot open"));
2855 			break;
2856 
2857 		case VDEV_AUX_BAD_GUID_SUM:
2858 			(void) printf(gettext("missing device"));
2859 			break;
2860 
2861 		case VDEV_AUX_NO_REPLICAS:
2862 			(void) printf(gettext("insufficient replicas"));
2863 			break;
2864 
2865 		case VDEV_AUX_VERSION_NEWER:
2866 			(void) printf(gettext("newer version"));
2867 			break;
2868 
2869 		case VDEV_AUX_UNSUP_FEAT:
2870 			(void) printf(gettext("unsupported feature(s)"));
2871 			break;
2872 
2873 		case VDEV_AUX_ERR_EXCEEDED:
2874 			(void) printf(gettext("too many errors"));
2875 			break;
2876 
2877 		case VDEV_AUX_ACTIVE:
2878 			(void) printf(gettext("currently in use"));
2879 			break;
2880 
2881 		case VDEV_AUX_CHILDREN_OFFLINE:
2882 			(void) printf(gettext("all children offline"));
2883 			break;
2884 
2885 		case VDEV_AUX_BAD_LABEL:
2886 			(void) printf(gettext("invalid label"));
2887 			break;
2888 
2889 		default:
2890 			(void) printf(gettext("corrupted data"));
2891 			break;
2892 		}
2893 	}
2894 	(void) printf("\n");
2895 
2896 	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
2897 	    &child, &children) != 0)
2898 		return;
2899 
2900 	for (c = 0; c < children; c++) {
2901 		uint64_t is_log = B_FALSE;
2902 
2903 		(void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_LOG,
2904 		    &is_log);
2905 		if (is_log)
2906 			continue;
2907 		if (nvlist_exists(child[c], ZPOOL_CONFIG_ALLOCATION_BIAS))
2908 			continue;
2909 
2910 		vname = zpool_vdev_name(g_zfs, NULL, child[c],
2911 		    cb->cb_name_flags | VDEV_NAME_TYPE_ID);
2912 		print_import_config(cb, vname, child[c], depth + 2);
2913 		free(vname);
2914 	}
2915 
2916 	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_L2CACHE,
2917 	    &child, &children) == 0) {
2918 		(void) printf(gettext("\tcache\n"));
2919 		for (c = 0; c < children; c++) {
2920 			vname = zpool_vdev_name(g_zfs, NULL, child[c],
2921 			    cb->cb_name_flags);
2922 			(void) printf("\t  %s\n", vname);
2923 			free(vname);
2924 		}
2925 	}
2926 
2927 	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_SPARES,
2928 	    &child, &children) == 0) {
2929 		(void) printf(gettext("\tspares\n"));
2930 		for (c = 0; c < children; c++) {
2931 			vname = zpool_vdev_name(g_zfs, NULL, child[c],
2932 			    cb->cb_name_flags);
2933 			(void) printf("\t  %s\n", vname);
2934 			free(vname);
2935 		}
2936 	}
2937 }
2938 
2939 /*
2940  * Print specialized class vdevs.
2941  *
2942  * These are recorded as top level vdevs in the main pool child array
2943  * but with "is_log" set to 1 or an "alloc_bias" string. We use either
2944  * print_status_config() or print_import_config() to print the top level
2945  * class vdevs then any of their children (eg mirrored slogs) are printed
2946  * recursively - which works because only the top level vdev is marked.
2947  */
2948 static void
2949 print_class_vdevs(zpool_handle_t *zhp, status_cbdata_t *cb, nvlist_t *nv,
2950     const char *class)
2951 {
2952 	uint_t c, children;
2953 	nvlist_t **child;
2954 	boolean_t printed = B_FALSE;
2955 
2956 	assert(zhp != NULL || !cb->cb_verbose);
2957 
2958 	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN, &child,
2959 	    &children) != 0)
2960 		return;
2961 
2962 	for (c = 0; c < children; c++) {
2963 		uint64_t is_log = B_FALSE;
2964 		const char *bias = NULL;
2965 		const char *type = NULL;
2966 
2967 		(void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_LOG,
2968 		    &is_log);
2969 
2970 		if (is_log) {
2971 			bias = (char *)VDEV_ALLOC_CLASS_LOGS;
2972 		} else {
2973 			(void) nvlist_lookup_string(child[c],
2974 			    ZPOOL_CONFIG_ALLOCATION_BIAS, &bias);
2975 			(void) nvlist_lookup_string(child[c],
2976 			    ZPOOL_CONFIG_TYPE, &type);
2977 		}
2978 
2979 		if (bias == NULL || strcmp(bias, class) != 0)
2980 			continue;
2981 		if (!is_log && strcmp(type, VDEV_TYPE_INDIRECT) == 0)
2982 			continue;
2983 
2984 		if (!printed) {
2985 			(void) printf("\t%s\t\n", gettext(class));
2986 			printed = B_TRUE;
2987 		}
2988 
2989 		char *name = zpool_vdev_name(g_zfs, zhp, child[c],
2990 		    cb->cb_name_flags | VDEV_NAME_TYPE_ID);
2991 		if (cb->cb_print_status)
2992 			print_status_config(zhp, cb, name, child[c], 2,
2993 			    B_FALSE, NULL);
2994 		else
2995 			print_import_config(cb, name, child[c], 2);
2996 		free(name);
2997 	}
2998 }
2999 
3000 /*
3001  * Display the status for the given pool.
3002  */
3003 static int
3004 show_import(nvlist_t *config, boolean_t report_error)
3005 {
3006 	uint64_t pool_state;
3007 	vdev_stat_t *vs;
3008 	const char *name;
3009 	uint64_t guid;
3010 	uint64_t hostid = 0;
3011 	const char *msgid;
3012 	const char *hostname = "unknown";
3013 	nvlist_t *nvroot, *nvinfo;
3014 	zpool_status_t reason;
3015 	zpool_errata_t errata;
3016 	const char *health;
3017 	uint_t vsc;
3018 	const char *comment;
3019 	const char *indent;
3020 	status_cbdata_t cb = { 0 };
3021 
3022 	verify(nvlist_lookup_string(config, ZPOOL_CONFIG_POOL_NAME,
3023 	    &name) == 0);
3024 	verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID,
3025 	    &guid) == 0);
3026 	verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_STATE,
3027 	    &pool_state) == 0);
3028 	verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
3029 	    &nvroot) == 0);
3030 
3031 	verify(nvlist_lookup_uint64_array(nvroot, ZPOOL_CONFIG_VDEV_STATS,
3032 	    (uint64_t **)&vs, &vsc) == 0);
3033 	health = zpool_state_to_name(vs->vs_state, vs->vs_aux);
3034 
3035 	reason = zpool_import_status(config, &msgid, &errata);
3036 
3037 	/*
3038 	 * If we're importing using a cachefile, then we won't report any
3039 	 * errors unless we are in the scan phase of the import.
3040 	 */
3041 	if (reason != ZPOOL_STATUS_OK && !report_error)
3042 		return (reason);
3043 
3044 	if (nvlist_lookup_string(config, ZPOOL_CONFIG_COMMENT, &comment) == 0) {
3045 		indent = " ";
3046 	} else {
3047 		comment = NULL;
3048 		indent = "";
3049 	}
3050 
3051 	(void) printf(gettext("%s  pool: %s\n"), indent, name);
3052 	(void) printf(gettext("%s    id: %llu\n"), indent, (u_longlong_t)guid);
3053 	(void) printf(gettext("%s state: %s"), indent, health);
3054 	if (pool_state == POOL_STATE_DESTROYED)
3055 		(void) printf(gettext(" (DESTROYED)"));
3056 	(void) printf("\n");
3057 
3058 	if (reason != ZPOOL_STATUS_OK) {
3059 		(void) printf("%s", indent);
3060 		printf_color(ANSI_BOLD, gettext("status: "));
3061 	}
3062 	switch (reason) {
3063 	case ZPOOL_STATUS_MISSING_DEV_R:
3064 	case ZPOOL_STATUS_MISSING_DEV_NR:
3065 	case ZPOOL_STATUS_BAD_GUID_SUM:
3066 		printf_color(ANSI_YELLOW, gettext("One or more devices are "
3067 		    "missing from the system.\n"));
3068 		break;
3069 
3070 	case ZPOOL_STATUS_CORRUPT_LABEL_R:
3071 	case ZPOOL_STATUS_CORRUPT_LABEL_NR:
3072 		printf_color(ANSI_YELLOW, gettext("One or more devices "
3073 		    "contains corrupted data.\n"));
3074 		break;
3075 
3076 	case ZPOOL_STATUS_CORRUPT_DATA:
3077 		printf_color(ANSI_YELLOW, gettext("The pool data is "
3078 		    "corrupted.\n"));
3079 		break;
3080 
3081 	case ZPOOL_STATUS_OFFLINE_DEV:
3082 		printf_color(ANSI_YELLOW, gettext("One or more devices "
3083 		    "are offlined.\n"));
3084 		break;
3085 
3086 	case ZPOOL_STATUS_CORRUPT_POOL:
3087 		printf_color(ANSI_YELLOW, gettext("The pool metadata is "
3088 		    "corrupted.\n"));
3089 		break;
3090 
3091 	case ZPOOL_STATUS_VERSION_OLDER:
3092 		printf_color(ANSI_YELLOW, gettext("The pool is formatted using "
3093 		    "a legacy on-disk version.\n"));
3094 		break;
3095 
3096 	case ZPOOL_STATUS_VERSION_NEWER:
3097 		printf_color(ANSI_YELLOW, gettext("The pool is formatted using "
3098 		    "an incompatible version.\n"));
3099 		break;
3100 
3101 	case ZPOOL_STATUS_FEAT_DISABLED:
3102 		printf_color(ANSI_YELLOW, gettext("Some supported "
3103 		    "features are not enabled on the pool.\n"
3104 		    "\t%s(Note that they may be intentionally disabled if the\n"
3105 		    "\t%s'compatibility' property is set.)\n"), indent, indent);
3106 		break;
3107 
3108 	case ZPOOL_STATUS_COMPATIBILITY_ERR:
3109 		printf_color(ANSI_YELLOW, gettext("Error reading or parsing "
3110 		    "the file(s) indicated by the 'compatibility'\n"
3111 		    "\t%sproperty.\n"), indent);
3112 		break;
3113 
3114 	case ZPOOL_STATUS_INCOMPATIBLE_FEAT:
3115 		printf_color(ANSI_YELLOW, gettext("One or more features "
3116 		    "are enabled on the pool despite not being\n"
3117 		    "\t%srequested by the 'compatibility' property.\n"),
3118 		    indent);
3119 		break;
3120 
3121 	case ZPOOL_STATUS_UNSUP_FEAT_READ:
3122 		printf_color(ANSI_YELLOW, gettext("The pool uses the following "
3123 		    "feature(s) not supported on this system:\n"));
3124 		color_start(ANSI_YELLOW);
3125 		zpool_print_unsup_feat(config);
3126 		color_end();
3127 		break;
3128 
3129 	case ZPOOL_STATUS_UNSUP_FEAT_WRITE:
3130 		printf_color(ANSI_YELLOW, gettext("The pool can only be "
3131 		    "accessed in read-only mode on this system. It\n"
3132 		    "\t%scannot be accessed in read-write mode because it uses "
3133 		    "the following\n"
3134 		    "\t%sfeature(s) not supported on this system:\n"),
3135 		    indent, indent);
3136 		color_start(ANSI_YELLOW);
3137 		zpool_print_unsup_feat(config);
3138 		color_end();
3139 		break;
3140 
3141 	case ZPOOL_STATUS_HOSTID_ACTIVE:
3142 		printf_color(ANSI_YELLOW, gettext("The pool is currently "
3143 		    "imported by another system.\n"));
3144 		break;
3145 
3146 	case ZPOOL_STATUS_HOSTID_REQUIRED:
3147 		printf_color(ANSI_YELLOW, gettext("The pool has the "
3148 		    "multihost property on.  It cannot\n"
3149 		    "\t%sbe safely imported when the system hostid is not "
3150 		    "set.\n"), indent);
3151 		break;
3152 
3153 	case ZPOOL_STATUS_HOSTID_MISMATCH:
3154 		printf_color(ANSI_YELLOW, gettext("The pool was last accessed "
3155 		    "by another system.\n"));
3156 		break;
3157 
3158 	case ZPOOL_STATUS_FAULTED_DEV_R:
3159 	case ZPOOL_STATUS_FAULTED_DEV_NR:
3160 		printf_color(ANSI_YELLOW, gettext("One or more devices are "
3161 		    "faulted.\n"));
3162 		break;
3163 
3164 	case ZPOOL_STATUS_BAD_LOG:
3165 		printf_color(ANSI_YELLOW, gettext("An intent log record cannot "
3166 		    "be read.\n"));
3167 		break;
3168 
3169 	case ZPOOL_STATUS_RESILVERING:
3170 	case ZPOOL_STATUS_REBUILDING:
3171 		printf_color(ANSI_YELLOW, gettext("One or more devices were "
3172 		    "being resilvered.\n"));
3173 		break;
3174 
3175 	case ZPOOL_STATUS_ERRATA:
3176 		printf_color(ANSI_YELLOW, gettext("Errata #%d detected.\n"),
3177 		    errata);
3178 		break;
3179 
3180 	case ZPOOL_STATUS_NON_NATIVE_ASHIFT:
3181 		printf_color(ANSI_YELLOW, gettext("One or more devices are "
3182 		    "configured to use a non-native block size.\n"
3183 		    "\t%sExpect reduced performance.\n"), indent);
3184 		break;
3185 
3186 	default:
3187 		/*
3188 		 * No other status can be seen when importing pools.
3189 		 */
3190 		assert(reason == ZPOOL_STATUS_OK);
3191 	}
3192 
3193 	/*
3194 	 * Print out an action according to the overall state of the pool.
3195 	 */
3196 	if (vs->vs_state != VDEV_STATE_HEALTHY ||
3197 	    reason != ZPOOL_STATUS_ERRATA || errata != ZPOOL_ERRATA_NONE) {
3198 		(void) printf("%s", indent);
3199 		(void) printf(gettext("action: "));
3200 	}
3201 	if (vs->vs_state == VDEV_STATE_HEALTHY) {
3202 		if (reason == ZPOOL_STATUS_VERSION_OLDER ||
3203 		    reason == ZPOOL_STATUS_FEAT_DISABLED) {
3204 			(void) printf(gettext("The pool can be imported using "
3205 			    "its name or numeric identifier, though\n"
3206 			    "\t%ssome features will not be available without "
3207 			    "an explicit 'zpool upgrade'.\n"), indent);
3208 		} else if (reason == ZPOOL_STATUS_COMPATIBILITY_ERR) {
3209 			(void) printf(gettext("The pool can be imported using "
3210 			    "its name or numeric\n"
3211 			    "\t%sidentifier, though the file(s) indicated by "
3212 			    "its 'compatibility'\n"
3213 			    "\t%sproperty cannot be parsed at this time.\n"),
3214 			    indent, indent);
3215 		} else if (reason == ZPOOL_STATUS_HOSTID_MISMATCH) {
3216 			(void) printf(gettext("The pool can be imported using "
3217 			    "its name or numeric identifier and\n"
3218 			    "\t%sthe '-f' flag.\n"), indent);
3219 		} else if (reason == ZPOOL_STATUS_ERRATA) {
3220 			switch (errata) {
3221 			case ZPOOL_ERRATA_ZOL_2094_SCRUB:
3222 				(void) printf(gettext("The pool can be "
3223 				    "imported using its name or numeric "
3224 				    "identifier,\n"
3225 				    "\t%showever there is a compatibility "
3226 				    "issue which should be corrected\n"
3227 				    "\t%sby running 'zpool scrub'\n"),
3228 				    indent, indent);
3229 				break;
3230 
3231 			case ZPOOL_ERRATA_ZOL_2094_ASYNC_DESTROY:
3232 				(void) printf(gettext("The pool cannot be "
3233 				    "imported with this version of ZFS due to\n"
3234 				    "\t%san active asynchronous destroy. "
3235 				    "Revert to an earlier version\n"
3236 				    "\t%sand allow the destroy to complete "
3237 				    "before updating.\n"), indent, indent);
3238 				break;
3239 
3240 			case ZPOOL_ERRATA_ZOL_6845_ENCRYPTION:
3241 				(void) printf(gettext("Existing encrypted "
3242 				    "datasets contain an on-disk "
3243 				    "incompatibility, which\n"
3244 				    "\t%sneeds to be corrected. Backup these "
3245 				    "datasets to new encrypted datasets\n"
3246 				    "\t%sand destroy the old ones.\n"),
3247 				    indent, indent);
3248 				break;
3249 
3250 			case ZPOOL_ERRATA_ZOL_8308_ENCRYPTION:
3251 				(void) printf(gettext("Existing encrypted "
3252 				    "snapshots and bookmarks contain an "
3253 				    "on-disk\n"
3254 				    "\t%sincompatibility. This may cause "
3255 				    "on-disk corruption if they are used\n"
3256 				    "\t%swith 'zfs recv'. To correct the "
3257 				    "issue, enable the bookmark_v2 feature.\n"
3258 				    "\t%sNo additional action is needed if "
3259 				    "there are no encrypted snapshots or\n"
3260 				    "\t%sbookmarks. If preserving the "
3261 				    "encrypted snapshots and bookmarks is\n"
3262 				    "\t%srequired, use a non-raw send to "
3263 				    "backup and restore them. Alternately,\n"
3264 				    "\t%sthey may be removed to resolve the "
3265 				    "incompatibility.\n"), indent, indent,
3266 				    indent, indent, indent, indent);
3267 				break;
3268 			default:
3269 				/*
3270 				 * All errata must contain an action message.
3271 				 */
3272 				assert(errata == ZPOOL_ERRATA_NONE);
3273 			}
3274 		} else {
3275 			(void) printf(gettext("The pool can be imported using "
3276 			    "its name or numeric identifier.\n"));
3277 		}
3278 	} else if (vs->vs_state == VDEV_STATE_DEGRADED) {
3279 		(void) printf(gettext("The pool can be imported despite "
3280 		    "missing or damaged devices.  The\n"
3281 		    "\t%sfault tolerance of the pool may be compromised if "
3282 		    "imported.\n"), indent);
3283 	} else {
3284 		switch (reason) {
3285 		case ZPOOL_STATUS_VERSION_NEWER:
3286 			(void) printf(gettext("The pool cannot be imported.  "
3287 			    "Access the pool on a system running newer\n"
3288 			    "\t%ssoftware, or recreate the pool from "
3289 			    "backup.\n"), indent);
3290 			break;
3291 		case ZPOOL_STATUS_UNSUP_FEAT_READ:
3292 			(void) printf(gettext("The pool cannot be imported. "
3293 			    "Access the pool on a system that supports\n"
3294 			    "\t%sthe required feature(s), or recreate the pool "
3295 			    "from backup.\n"), indent);
3296 			break;
3297 		case ZPOOL_STATUS_UNSUP_FEAT_WRITE:
3298 			(void) printf(gettext("The pool cannot be imported in "
3299 			    "read-write mode. Import the pool with\n"
3300 			    "\t%s'-o readonly=on', access the pool on a system "
3301 			    "that supports the\n"
3302 			    "\t%srequired feature(s), or recreate the pool "
3303 			    "from backup.\n"), indent, indent);
3304 			break;
3305 		case ZPOOL_STATUS_MISSING_DEV_R:
3306 		case ZPOOL_STATUS_MISSING_DEV_NR:
3307 		case ZPOOL_STATUS_BAD_GUID_SUM:
3308 			(void) printf(gettext("The pool cannot be imported. "
3309 			    "Attach the missing\n"
3310 			    "\t%sdevices and try again.\n"), indent);
3311 			break;
3312 		case ZPOOL_STATUS_HOSTID_ACTIVE:
3313 			VERIFY0(nvlist_lookup_nvlist(config,
3314 			    ZPOOL_CONFIG_LOAD_INFO, &nvinfo));
3315 
3316 			if (nvlist_exists(nvinfo, ZPOOL_CONFIG_MMP_HOSTNAME))
3317 				hostname = fnvlist_lookup_string(nvinfo,
3318 				    ZPOOL_CONFIG_MMP_HOSTNAME);
3319 
3320 			if (nvlist_exists(nvinfo, ZPOOL_CONFIG_MMP_HOSTID))
3321 				hostid = fnvlist_lookup_uint64(nvinfo,
3322 				    ZPOOL_CONFIG_MMP_HOSTID);
3323 
3324 			(void) printf(gettext("The pool must be exported from "
3325 			    "%s (hostid=%"PRIx64")\n"
3326 			    "\t%sbefore it can be safely imported.\n"),
3327 			    hostname, hostid, indent);
3328 			break;
3329 		case ZPOOL_STATUS_HOSTID_REQUIRED:
3330 			(void) printf(gettext("Set a unique system hostid with "
3331 			    "the zgenhostid(8) command.\n"));
3332 			break;
3333 		default:
3334 			(void) printf(gettext("The pool cannot be imported due "
3335 			    "to damaged devices or data.\n"));
3336 		}
3337 	}
3338 
3339 	/* Print the comment attached to the pool. */
3340 	if (comment != NULL)
3341 		(void) printf(gettext("comment: %s\n"), comment);
3342 
3343 	/*
3344 	 * If the state is "closed" or "can't open", and the aux state
3345 	 * is "corrupt data":
3346 	 */
3347 	if ((vs->vs_state == VDEV_STATE_CLOSED ||
3348 	    vs->vs_state == VDEV_STATE_CANT_OPEN) &&
3349 	    vs->vs_aux == VDEV_AUX_CORRUPT_DATA) {
3350 		if (pool_state == POOL_STATE_DESTROYED)
3351 			(void) printf(gettext("\t%sThe pool was destroyed, "
3352 			    "but can be imported using the '-Df' flags.\n"),
3353 			    indent);
3354 		else if (pool_state != POOL_STATE_EXPORTED)
3355 			(void) printf(gettext("\t%sThe pool may be active on "
3356 			    "another system, but can be imported using\n"
3357 			    "\t%sthe '-f' flag.\n"), indent, indent);
3358 	}
3359 
3360 	if (msgid != NULL) {
3361 		(void) printf(gettext("%s   see: "
3362 		    "https://openzfs.github.io/openzfs-docs/msg/%s\n"),
3363 		    indent, msgid);
3364 	}
3365 
3366 	(void) printf(gettext("%sconfig:\n\n"), indent);
3367 
3368 	cb.cb_namewidth = max_width(NULL, nvroot, 0, strlen(name),
3369 	    VDEV_NAME_TYPE_ID);
3370 	if (cb.cb_namewidth < 10)
3371 		cb.cb_namewidth = 10;
3372 
3373 	print_import_config(&cb, name, nvroot, 0);
3374 
3375 	print_class_vdevs(NULL, &cb, nvroot, VDEV_ALLOC_BIAS_DEDUP);
3376 	print_class_vdevs(NULL, &cb, nvroot, VDEV_ALLOC_BIAS_SPECIAL);
3377 	print_class_vdevs(NULL, &cb, nvroot, VDEV_ALLOC_CLASS_LOGS);
3378 
3379 	if (reason == ZPOOL_STATUS_BAD_GUID_SUM) {
3380 		(void) printf(gettext("\n\t%sAdditional devices are known to "
3381 		    "be part of this pool, though their\n"
3382 		    "\t%sexact configuration cannot be determined.\n"),
3383 		    indent, indent);
3384 	}
3385 	return (0);
3386 }
3387 
3388 static boolean_t
3389 zfs_force_import_required(nvlist_t *config)
3390 {
3391 	uint64_t state;
3392 	uint64_t hostid = 0;
3393 	nvlist_t *nvinfo;
3394 
3395 	state = fnvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_STATE);
3396 	nvinfo = fnvlist_lookup_nvlist(config, ZPOOL_CONFIG_LOAD_INFO);
3397 
3398 	/*
3399 	 * The hostid on LOAD_INFO comes from the MOS label via
3400 	 * spa_tryimport(). If its not there then we're likely talking to an
3401 	 * older kernel, so use the top one, which will be from the label
3402 	 * discovered in zpool_find_import(), or if a cachefile is in use, the
3403 	 * local hostid.
3404 	 */
3405 	if (nvlist_lookup_uint64(nvinfo, ZPOOL_CONFIG_HOSTID, &hostid) != 0)
3406 		(void) nvlist_lookup_uint64(config, ZPOOL_CONFIG_HOSTID,
3407 		    &hostid);
3408 
3409 	if (state != POOL_STATE_EXPORTED && hostid != get_system_hostid())
3410 		return (B_TRUE);
3411 
3412 	if (nvlist_exists(nvinfo, ZPOOL_CONFIG_MMP_STATE)) {
3413 		mmp_state_t mmp_state = fnvlist_lookup_uint64(nvinfo,
3414 		    ZPOOL_CONFIG_MMP_STATE);
3415 
3416 		if (mmp_state != MMP_STATE_INACTIVE)
3417 			return (B_TRUE);
3418 	}
3419 
3420 	return (B_FALSE);
3421 }
3422 
3423 /*
3424  * Perform the import for the given configuration.  This passes the heavy
3425  * lifting off to zpool_import_props(), and then mounts the datasets contained
3426  * within the pool.
3427  */
3428 static int
3429 do_import(nvlist_t *config, const char *newname, const char *mntopts,
3430     nvlist_t *props, int flags, uint_t mntthreads)
3431 {
3432 	int ret = 0;
3433 	int ms_status = 0;
3434 	zpool_handle_t *zhp;
3435 	const char *name;
3436 	uint64_t version;
3437 
3438 	name = fnvlist_lookup_string(config, ZPOOL_CONFIG_POOL_NAME);
3439 	version = fnvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION);
3440 
3441 	if (!SPA_VERSION_IS_SUPPORTED(version)) {
3442 		(void) fprintf(stderr, gettext("cannot import '%s': pool "
3443 		    "is formatted using an unsupported ZFS version\n"), name);
3444 		return (1);
3445 	} else if (zfs_force_import_required(config) &&
3446 	    !(flags & ZFS_IMPORT_ANY_HOST)) {
3447 		mmp_state_t mmp_state = MMP_STATE_INACTIVE;
3448 		nvlist_t *nvinfo;
3449 
3450 		nvinfo = fnvlist_lookup_nvlist(config, ZPOOL_CONFIG_LOAD_INFO);
3451 		if (nvlist_exists(nvinfo, ZPOOL_CONFIG_MMP_STATE))
3452 			mmp_state = fnvlist_lookup_uint64(nvinfo,
3453 			    ZPOOL_CONFIG_MMP_STATE);
3454 
3455 		if (mmp_state == MMP_STATE_ACTIVE) {
3456 			const char *hostname = "<unknown>";
3457 			uint64_t hostid = 0;
3458 
3459 			if (nvlist_exists(nvinfo, ZPOOL_CONFIG_MMP_HOSTNAME))
3460 				hostname = fnvlist_lookup_string(nvinfo,
3461 				    ZPOOL_CONFIG_MMP_HOSTNAME);
3462 
3463 			if (nvlist_exists(nvinfo, ZPOOL_CONFIG_MMP_HOSTID))
3464 				hostid = fnvlist_lookup_uint64(nvinfo,
3465 				    ZPOOL_CONFIG_MMP_HOSTID);
3466 
3467 			(void) fprintf(stderr, gettext("cannot import '%s': "
3468 			    "pool is imported on %s (hostid: "
3469 			    "0x%"PRIx64")\nExport the pool on the other "
3470 			    "system, then run 'zpool import'.\n"),
3471 			    name, hostname, hostid);
3472 		} else if (mmp_state == MMP_STATE_NO_HOSTID) {
3473 			(void) fprintf(stderr, gettext("Cannot import '%s': "
3474 			    "pool has the multihost property on and the\n"
3475 			    "system's hostid is not set. Set a unique hostid "
3476 			    "with the zgenhostid(8) command.\n"), name);
3477 		} else {
3478 			const char *hostname = "<unknown>";
3479 			time_t timestamp = 0;
3480 			uint64_t hostid = 0;
3481 
3482 			if (nvlist_exists(nvinfo, ZPOOL_CONFIG_HOSTNAME))
3483 				hostname = fnvlist_lookup_string(nvinfo,
3484 				    ZPOOL_CONFIG_HOSTNAME);
3485 			else if (nvlist_exists(config, ZPOOL_CONFIG_HOSTNAME))
3486 				hostname = fnvlist_lookup_string(config,
3487 				    ZPOOL_CONFIG_HOSTNAME);
3488 
3489 			if (nvlist_exists(config, ZPOOL_CONFIG_TIMESTAMP))
3490 				timestamp = fnvlist_lookup_uint64(config,
3491 				    ZPOOL_CONFIG_TIMESTAMP);
3492 
3493 			if (nvlist_exists(nvinfo, ZPOOL_CONFIG_HOSTID))
3494 				hostid = fnvlist_lookup_uint64(nvinfo,
3495 				    ZPOOL_CONFIG_HOSTID);
3496 			else if (nvlist_exists(config, ZPOOL_CONFIG_HOSTID))
3497 				hostid = fnvlist_lookup_uint64(config,
3498 				    ZPOOL_CONFIG_HOSTID);
3499 
3500 			(void) fprintf(stderr, gettext("cannot import '%s': "
3501 			    "pool was previously in use from another system.\n"
3502 			    "Last accessed by %s (hostid=%"PRIx64") at %s"
3503 			    "The pool can be imported, use 'zpool import -f' "
3504 			    "to import the pool.\n"), name, hostname,
3505 			    hostid, ctime(&timestamp));
3506 		}
3507 
3508 		return (1);
3509 	}
3510 
3511 	if (zpool_import_props(g_zfs, config, newname, props, flags) != 0)
3512 		return (1);
3513 
3514 	if (newname != NULL)
3515 		name = newname;
3516 
3517 	if ((zhp = zpool_open_canfail(g_zfs, name)) == NULL)
3518 		return (1);
3519 
3520 	/*
3521 	 * Loading keys is best effort. We don't want to return immediately
3522 	 * if it fails but we do want to give the error to the caller.
3523 	 */
3524 	if (flags & ZFS_IMPORT_LOAD_KEYS &&
3525 	    zfs_crypto_attempt_load_keys(g_zfs, name) != 0)
3526 			ret = 1;
3527 
3528 	if (zpool_get_state(zhp) != POOL_STATE_UNAVAIL &&
3529 	    !(flags & ZFS_IMPORT_ONLY)) {
3530 		ms_status = zpool_enable_datasets(zhp, mntopts, 0, mntthreads);
3531 		if (ms_status == EZFS_SHAREFAILED) {
3532 			(void) fprintf(stderr, gettext("Import was "
3533 			    "successful, but unable to share some datasets\n"));
3534 		} else if (ms_status == EZFS_MOUNTFAILED) {
3535 			(void) fprintf(stderr, gettext("Import was "
3536 			    "successful, but unable to mount some datasets\n"));
3537 		}
3538 	}
3539 
3540 	zpool_close(zhp);
3541 	return (ret);
3542 }
3543 
3544 typedef struct import_parameters {
3545 	nvlist_t *ip_config;
3546 	const char *ip_mntopts;
3547 	nvlist_t *ip_props;
3548 	int ip_flags;
3549 	uint_t ip_mntthreads;
3550 	int *ip_err;
3551 } import_parameters_t;
3552 
3553 static void
3554 do_import_task(void *arg)
3555 {
3556 	import_parameters_t *ip = arg;
3557 	*ip->ip_err |= do_import(ip->ip_config, NULL, ip->ip_mntopts,
3558 	    ip->ip_props, ip->ip_flags, ip->ip_mntthreads);
3559 	free(ip);
3560 }
3561 
3562 
3563 static int
3564 import_pools(nvlist_t *pools, nvlist_t *props, char *mntopts, int flags,
3565     char *orig_name, char *new_name, importargs_t *import)
3566 {
3567 	nvlist_t *config = NULL;
3568 	nvlist_t *found_config = NULL;
3569 	uint64_t pool_state;
3570 	boolean_t pool_specified = (import->poolname != NULL ||
3571 	    import->guid != 0);
3572 	uint_t npools = 0;
3573 
3574 
3575 	tpool_t *tp = NULL;
3576 	if (import->do_all) {
3577 		tp = tpool_create(1, 5 * sysconf(_SC_NPROCESSORS_ONLN),
3578 		    0, NULL);
3579 	}
3580 
3581 	/*
3582 	 * At this point we have a list of import candidate configs. Even if
3583 	 * we were searching by pool name or guid, we still need to
3584 	 * post-process the list to deal with pool state and possible
3585 	 * duplicate names.
3586 	 */
3587 	int err = 0;
3588 	nvpair_t *elem = NULL;
3589 	boolean_t first = B_TRUE;
3590 	if (!pool_specified && import->do_all) {
3591 		while ((elem = nvlist_next_nvpair(pools, elem)) != NULL)
3592 			npools++;
3593 	}
3594 	while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) {
3595 
3596 		verify(nvpair_value_nvlist(elem, &config) == 0);
3597 
3598 		verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_STATE,
3599 		    &pool_state) == 0);
3600 		if (!import->do_destroyed &&
3601 		    pool_state == POOL_STATE_DESTROYED)
3602 			continue;
3603 		if (import->do_destroyed &&
3604 		    pool_state != POOL_STATE_DESTROYED)
3605 			continue;
3606 
3607 		verify(nvlist_add_nvlist(config, ZPOOL_LOAD_POLICY,
3608 		    import->policy) == 0);
3609 
3610 		if (!pool_specified) {
3611 			if (first)
3612 				first = B_FALSE;
3613 			else if (!import->do_all)
3614 				(void) fputc('\n', stdout);
3615 
3616 			if (import->do_all) {
3617 				import_parameters_t *ip = safe_malloc(
3618 				    sizeof (import_parameters_t));
3619 
3620 				ip->ip_config = config;
3621 				ip->ip_mntopts = mntopts;
3622 				ip->ip_props = props;
3623 				ip->ip_flags = flags;
3624 				ip->ip_mntthreads = mount_tp_nthr / npools;
3625 				ip->ip_err = &err;
3626 
3627 				(void) tpool_dispatch(tp, do_import_task,
3628 				    (void *)ip);
3629 			} else {
3630 				/*
3631 				 * If we're importing from cachefile, then
3632 				 * we don't want to report errors until we
3633 				 * are in the scan phase of the import. If
3634 				 * we get an error, then we return that error
3635 				 * to invoke the scan phase.
3636 				 */
3637 				if (import->cachefile && !import->scan)
3638 					err = show_import(config, B_FALSE);
3639 				else
3640 					(void) show_import(config, B_TRUE);
3641 			}
3642 		} else if (import->poolname != NULL) {
3643 			const char *name;
3644 
3645 			/*
3646 			 * We are searching for a pool based on name.
3647 			 */
3648 			verify(nvlist_lookup_string(config,
3649 			    ZPOOL_CONFIG_POOL_NAME, &name) == 0);
3650 
3651 			if (strcmp(name, import->poolname) == 0) {
3652 				if (found_config != NULL) {
3653 					(void) fprintf(stderr, gettext(
3654 					    "cannot import '%s': more than "
3655 					    "one matching pool\n"),
3656 					    import->poolname);
3657 					(void) fprintf(stderr, gettext(
3658 					    "import by numeric ID instead\n"));
3659 					err = B_TRUE;
3660 				}
3661 				found_config = config;
3662 			}
3663 		} else {
3664 			uint64_t guid;
3665 
3666 			/*
3667 			 * Search for a pool by guid.
3668 			 */
3669 			verify(nvlist_lookup_uint64(config,
3670 			    ZPOOL_CONFIG_POOL_GUID, &guid) == 0);
3671 
3672 			if (guid == import->guid)
3673 				found_config = config;
3674 		}
3675 	}
3676 	if (import->do_all) {
3677 		tpool_wait(tp);
3678 		tpool_destroy(tp);
3679 	}
3680 
3681 	/*
3682 	 * If we were searching for a specific pool, verify that we found a
3683 	 * pool, and then do the import.
3684 	 */
3685 	if (pool_specified && err == 0) {
3686 		if (found_config == NULL) {
3687 			(void) fprintf(stderr, gettext("cannot import '%s': "
3688 			    "no such pool available\n"), orig_name);
3689 			err = B_TRUE;
3690 		} else {
3691 			err |= do_import(found_config, new_name,
3692 			    mntopts, props, flags, mount_tp_nthr);
3693 		}
3694 	}
3695 
3696 	/*
3697 	 * If we were just looking for pools, report an error if none were
3698 	 * found.
3699 	 */
3700 	if (!pool_specified && first)
3701 		(void) fprintf(stderr,
3702 		    gettext("no pools available to import\n"));
3703 	return (err);
3704 }
3705 
3706 typedef struct target_exists_args {
3707 	const char	*poolname;
3708 	uint64_t	poolguid;
3709 } target_exists_args_t;
3710 
3711 static int
3712 name_or_guid_exists(zpool_handle_t *zhp, void *data)
3713 {
3714 	target_exists_args_t *args = data;
3715 	nvlist_t *config = zpool_get_config(zhp, NULL);
3716 	int found = 0;
3717 
3718 	if (config == NULL)
3719 		return (0);
3720 
3721 	if (args->poolname != NULL) {
3722 		const char *pool_name;
3723 
3724 		verify(nvlist_lookup_string(config, ZPOOL_CONFIG_POOL_NAME,
3725 		    &pool_name) == 0);
3726 		if (strcmp(pool_name, args->poolname) == 0)
3727 			found = 1;
3728 	} else {
3729 		uint64_t pool_guid;
3730 
3731 		verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID,
3732 		    &pool_guid) == 0);
3733 		if (pool_guid == args->poolguid)
3734 			found = 1;
3735 	}
3736 	zpool_close(zhp);
3737 
3738 	return (found);
3739 }
3740 /*
3741  * zpool checkpoint <pool>
3742  *       checkpoint --discard <pool>
3743  *
3744  *       -d         Discard the checkpoint from a checkpointed
3745  *       --discard  pool.
3746  *
3747  *       -w         Wait for discarding a checkpoint to complete.
3748  *       --wait
3749  *
3750  * Checkpoints the specified pool, by taking a "snapshot" of its
3751  * current state. A pool can only have one checkpoint at a time.
3752  */
3753 int
3754 zpool_do_checkpoint(int argc, char **argv)
3755 {
3756 	boolean_t discard, wait;
3757 	char *pool;
3758 	zpool_handle_t *zhp;
3759 	int c, err;
3760 
3761 	struct option long_options[] = {
3762 		{"discard", no_argument, NULL, 'd'},
3763 		{"wait", no_argument, NULL, 'w'},
3764 		{0, 0, 0, 0}
3765 	};
3766 
3767 	discard = B_FALSE;
3768 	wait = B_FALSE;
3769 	while ((c = getopt_long(argc, argv, ":dw", long_options, NULL)) != -1) {
3770 		switch (c) {
3771 		case 'd':
3772 			discard = B_TRUE;
3773 			break;
3774 		case 'w':
3775 			wait = B_TRUE;
3776 			break;
3777 		case '?':
3778 			(void) fprintf(stderr, gettext("invalid option '%c'\n"),
3779 			    optopt);
3780 			usage(B_FALSE);
3781 		}
3782 	}
3783 
3784 	if (wait && !discard) {
3785 		(void) fprintf(stderr, gettext("--wait only valid when "
3786 		    "--discard also specified\n"));
3787 		usage(B_FALSE);
3788 	}
3789 
3790 	argc -= optind;
3791 	argv += optind;
3792 
3793 	if (argc < 1) {
3794 		(void) fprintf(stderr, gettext("missing pool argument\n"));
3795 		usage(B_FALSE);
3796 	}
3797 
3798 	if (argc > 1) {
3799 		(void) fprintf(stderr, gettext("too many arguments\n"));
3800 		usage(B_FALSE);
3801 	}
3802 
3803 	pool = argv[0];
3804 
3805 	if ((zhp = zpool_open(g_zfs, pool)) == NULL) {
3806 		/* As a special case, check for use of '/' in the name */
3807 		if (strchr(pool, '/') != NULL)
3808 			(void) fprintf(stderr, gettext("'zpool checkpoint' "
3809 			    "doesn't work on datasets. To save the state "
3810 			    "of a dataset from a specific point in time "
3811 			    "please use 'zfs snapshot'\n"));
3812 		return (1);
3813 	}
3814 
3815 	if (discard) {
3816 		err = (zpool_discard_checkpoint(zhp) != 0);
3817 		if (err == 0 && wait)
3818 			err = zpool_wait(zhp, ZPOOL_WAIT_CKPT_DISCARD);
3819 	} else {
3820 		err = (zpool_checkpoint(zhp) != 0);
3821 	}
3822 
3823 	zpool_close(zhp);
3824 
3825 	return (err);
3826 }
3827 
3828 #define	CHECKPOINT_OPT	1024
3829 
3830 /*
3831  * zpool import [-d dir] [-D]
3832  *       import [-o mntopts] [-o prop=value] ... [-R root] [-D] [-l]
3833  *              [-d dir | -c cachefile | -s] [-f] -a
3834  *       import [-o mntopts] [-o prop=value] ... [-R root] [-D] [-l]
3835  *              [-d dir | -c cachefile | -s] [-f] [-n] [-F] <pool | id>
3836  *              [newpool]
3837  *
3838  *	-c	Read pool information from a cachefile instead of searching
3839  *		devices. If importing from a cachefile config fails, then
3840  *		fallback to searching for devices only in the directories that
3841  *		exist in the cachefile.
3842  *
3843  *	-d	Scan in a specific directory, other than /dev/.  More than
3844  *		one directory can be specified using multiple '-d' options.
3845  *
3846  *	-D	Scan for previously destroyed pools or import all or only
3847  *		specified destroyed pools.
3848  *
3849  *	-R	Temporarily import the pool, with all mountpoints relative to
3850  *		the given root.  The pool will remain exported when the machine
3851  *		is rebooted.
3852  *
3853  *	-V	Import even in the presence of faulted vdevs.  This is an
3854  *		intentionally undocumented option for testing purposes, and
3855  *		treats the pool configuration as complete, leaving any bad
3856  *		vdevs in the FAULTED state. In other words, it does verbatim
3857  *		import.
3858  *
3859  *	-f	Force import, even if it appears that the pool is active.
3860  *
3861  *	-F	Attempt rewind if necessary.
3862  *
3863  *	-n	See if rewind would work, but don't actually rewind.
3864  *
3865  *	-N	Import the pool but don't mount datasets.
3866  *
3867  *	-T	Specify a starting txg to use for import. This option is
3868  *		intentionally undocumented option for testing purposes.
3869  *
3870  *	-a	Import all pools found.
3871  *
3872  *	-l	Load encryption keys while importing.
3873  *
3874  *	-o	Set property=value and/or temporary mount options (without '=').
3875  *
3876  *	-s	Scan using the default search path, the libblkid cache will
3877  *		not be consulted.
3878  *
3879  *	--rewind-to-checkpoint
3880  *		Import the pool and revert back to the checkpoint.
3881  *
3882  * The import command scans for pools to import, and import pools based on pool
3883  * name and GUID.  The pool can also be renamed as part of the import process.
3884  */
3885 int
3886 zpool_do_import(int argc, char **argv)
3887 {
3888 	char **searchdirs = NULL;
3889 	char *env, *envdup = NULL;
3890 	int nsearch = 0;
3891 	int c;
3892 	int err = 0;
3893 	nvlist_t *pools = NULL;
3894 	boolean_t do_all = B_FALSE;
3895 	boolean_t do_destroyed = B_FALSE;
3896 	char *mntopts = NULL;
3897 	uint64_t searchguid = 0;
3898 	char *searchname = NULL;
3899 	char *propval;
3900 	nvlist_t *policy = NULL;
3901 	nvlist_t *props = NULL;
3902 	int flags = ZFS_IMPORT_NORMAL;
3903 	uint32_t rewind_policy = ZPOOL_NO_REWIND;
3904 	boolean_t dryrun = B_FALSE;
3905 	boolean_t do_rewind = B_FALSE;
3906 	boolean_t xtreme_rewind = B_FALSE;
3907 	boolean_t do_scan = B_FALSE;
3908 	boolean_t pool_exists = B_FALSE;
3909 	uint64_t txg = -1ULL;
3910 	char *cachefile = NULL;
3911 	importargs_t idata = { 0 };
3912 	char *endptr;
3913 
3914 	struct option long_options[] = {
3915 		{"rewind-to-checkpoint", no_argument, NULL, CHECKPOINT_OPT},
3916 		{0, 0, 0, 0}
3917 	};
3918 
3919 	/* check options */
3920 	while ((c = getopt_long(argc, argv, ":aCc:d:DEfFlmnNo:R:stT:VX",
3921 	    long_options, NULL)) != -1) {
3922 		switch (c) {
3923 		case 'a':
3924 			do_all = B_TRUE;
3925 			break;
3926 		case 'c':
3927 			cachefile = optarg;
3928 			break;
3929 		case 'd':
3930 			searchdirs = safe_realloc(searchdirs,
3931 			    (nsearch + 1) * sizeof (char *));
3932 			searchdirs[nsearch++] = optarg;
3933 			break;
3934 		case 'D':
3935 			do_destroyed = B_TRUE;
3936 			break;
3937 		case 'f':
3938 			flags |= ZFS_IMPORT_ANY_HOST;
3939 			break;
3940 		case 'F':
3941 			do_rewind = B_TRUE;
3942 			break;
3943 		case 'l':
3944 			flags |= ZFS_IMPORT_LOAD_KEYS;
3945 			break;
3946 		case 'm':
3947 			flags |= ZFS_IMPORT_MISSING_LOG;
3948 			break;
3949 		case 'n':
3950 			dryrun = B_TRUE;
3951 			break;
3952 		case 'N':
3953 			flags |= ZFS_IMPORT_ONLY;
3954 			break;
3955 		case 'o':
3956 			if ((propval = strchr(optarg, '=')) != NULL) {
3957 				*propval = '\0';
3958 				propval++;
3959 				if (add_prop_list(optarg, propval,
3960 				    &props, B_TRUE))
3961 					goto error;
3962 			} else {
3963 				mntopts = optarg;
3964 			}
3965 			break;
3966 		case 'R':
3967 			if (add_prop_list(zpool_prop_to_name(
3968 			    ZPOOL_PROP_ALTROOT), optarg, &props, B_TRUE))
3969 				goto error;
3970 			if (add_prop_list_default(zpool_prop_to_name(
3971 			    ZPOOL_PROP_CACHEFILE), "none", &props))
3972 				goto error;
3973 			break;
3974 		case 's':
3975 			do_scan = B_TRUE;
3976 			break;
3977 		case 't':
3978 			flags |= ZFS_IMPORT_TEMP_NAME;
3979 			if (add_prop_list_default(zpool_prop_to_name(
3980 			    ZPOOL_PROP_CACHEFILE), "none", &props))
3981 				goto error;
3982 			break;
3983 
3984 		case 'T':
3985 			errno = 0;
3986 			txg = strtoull(optarg, &endptr, 0);
3987 			if (errno != 0 || *endptr != '\0') {
3988 				(void) fprintf(stderr,
3989 				    gettext("invalid txg value\n"));
3990 				usage(B_FALSE);
3991 			}
3992 			rewind_policy = ZPOOL_DO_REWIND | ZPOOL_EXTREME_REWIND;
3993 			break;
3994 		case 'V':
3995 			flags |= ZFS_IMPORT_VERBATIM;
3996 			break;
3997 		case 'X':
3998 			xtreme_rewind = B_TRUE;
3999 			break;
4000 		case CHECKPOINT_OPT:
4001 			flags |= ZFS_IMPORT_CHECKPOINT;
4002 			break;
4003 		case ':':
4004 			(void) fprintf(stderr, gettext("missing argument for "
4005 			    "'%c' option\n"), optopt);
4006 			usage(B_FALSE);
4007 			break;
4008 		case '?':
4009 			(void) fprintf(stderr, gettext("invalid option '%c'\n"),
4010 			    optopt);
4011 			usage(B_FALSE);
4012 		}
4013 	}
4014 
4015 	argc -= optind;
4016 	argv += optind;
4017 
4018 	if (cachefile && nsearch != 0) {
4019 		(void) fprintf(stderr, gettext("-c is incompatible with -d\n"));
4020 		usage(B_FALSE);
4021 	}
4022 
4023 	if (cachefile && do_scan) {
4024 		(void) fprintf(stderr, gettext("-c is incompatible with -s\n"));
4025 		usage(B_FALSE);
4026 	}
4027 
4028 	if ((flags & ZFS_IMPORT_LOAD_KEYS) && (flags & ZFS_IMPORT_ONLY)) {
4029 		(void) fprintf(stderr, gettext("-l is incompatible with -N\n"));
4030 		usage(B_FALSE);
4031 	}
4032 
4033 	if ((flags & ZFS_IMPORT_LOAD_KEYS) && !do_all && argc == 0) {
4034 		(void) fprintf(stderr, gettext("-l is only meaningful during "
4035 		    "an import\n"));
4036 		usage(B_FALSE);
4037 	}
4038 
4039 	if ((dryrun || xtreme_rewind) && !do_rewind) {
4040 		(void) fprintf(stderr,
4041 		    gettext("-n or -X only meaningful with -F\n"));
4042 		usage(B_FALSE);
4043 	}
4044 	if (dryrun)
4045 		rewind_policy = ZPOOL_TRY_REWIND;
4046 	else if (do_rewind)
4047 		rewind_policy = ZPOOL_DO_REWIND;
4048 	if (xtreme_rewind)
4049 		rewind_policy |= ZPOOL_EXTREME_REWIND;
4050 
4051 	/* In the future, we can capture further policy and include it here */
4052 	if (nvlist_alloc(&policy, NV_UNIQUE_NAME, 0) != 0 ||
4053 	    nvlist_add_uint64(policy, ZPOOL_LOAD_REQUEST_TXG, txg) != 0 ||
4054 	    nvlist_add_uint32(policy, ZPOOL_LOAD_REWIND_POLICY,
4055 	    rewind_policy) != 0)
4056 		goto error;
4057 
4058 	/* check argument count */
4059 	if (do_all) {
4060 		if (argc != 0) {
4061 			(void) fprintf(stderr, gettext("too many arguments\n"));
4062 			usage(B_FALSE);
4063 		}
4064 	} else {
4065 		if (argc > 2) {
4066 			(void) fprintf(stderr, gettext("too many arguments\n"));
4067 			usage(B_FALSE);
4068 		}
4069 	}
4070 
4071 	/*
4072 	 * Check for the effective uid.  We do this explicitly here because
4073 	 * otherwise any attempt to discover pools will silently fail.
4074 	 */
4075 	if (argc == 0 && geteuid() != 0) {
4076 		(void) fprintf(stderr, gettext("cannot "
4077 		    "discover pools: permission denied\n"));
4078 
4079 		free(searchdirs);
4080 		nvlist_free(props);
4081 		nvlist_free(policy);
4082 		return (1);
4083 	}
4084 
4085 	/*
4086 	 * Depending on the arguments given, we do one of the following:
4087 	 *
4088 	 *	<none>	Iterate through all pools and display information about
4089 	 *		each one.
4090 	 *
4091 	 *	-a	Iterate through all pools and try to import each one.
4092 	 *
4093 	 *	<id>	Find the pool that corresponds to the given GUID/pool
4094 	 *		name and import that one.
4095 	 *
4096 	 *	-D	Above options applies only to destroyed pools.
4097 	 */
4098 	if (argc != 0) {
4099 		char *endptr;
4100 
4101 		errno = 0;
4102 		searchguid = strtoull(argv[0], &endptr, 10);
4103 		if (errno != 0 || *endptr != '\0') {
4104 			searchname = argv[0];
4105 			searchguid = 0;
4106 		}
4107 
4108 		/*
4109 		 * User specified a name or guid.  Ensure it's unique.
4110 		 */
4111 		target_exists_args_t search = {searchname, searchguid};
4112 		pool_exists = zpool_iter(g_zfs, name_or_guid_exists, &search);
4113 	}
4114 
4115 	/*
4116 	 * Check the environment for the preferred search path.
4117 	 */
4118 	if ((searchdirs == NULL) && (env = getenv("ZPOOL_IMPORT_PATH"))) {
4119 		char *dir, *tmp = NULL;
4120 
4121 		envdup = strdup(env);
4122 
4123 		for (dir = strtok_r(envdup, ":", &tmp);
4124 		    dir != NULL;
4125 		    dir = strtok_r(NULL, ":", &tmp)) {
4126 			searchdirs = safe_realloc(searchdirs,
4127 			    (nsearch + 1) * sizeof (char *));
4128 			searchdirs[nsearch++] = dir;
4129 		}
4130 	}
4131 
4132 	idata.path = searchdirs;
4133 	idata.paths = nsearch;
4134 	idata.poolname = searchname;
4135 	idata.guid = searchguid;
4136 	idata.cachefile = cachefile;
4137 	idata.scan = do_scan;
4138 	idata.policy = policy;
4139 	idata.do_destroyed = do_destroyed;
4140 	idata.do_all = do_all;
4141 
4142 	libpc_handle_t lpch = {
4143 		.lpc_lib_handle = g_zfs,
4144 		.lpc_ops = &libzfs_config_ops,
4145 		.lpc_printerr = B_TRUE
4146 	};
4147 	pools = zpool_search_import(&lpch, &idata);
4148 
4149 	if (pools != NULL && pool_exists &&
4150 	    (argc == 1 || strcmp(argv[0], argv[1]) == 0)) {
4151 		(void) fprintf(stderr, gettext("cannot import '%s': "
4152 		    "a pool with that name already exists\n"),
4153 		    argv[0]);
4154 		(void) fprintf(stderr, gettext("use the form '%s "
4155 		    "<pool | id> <newpool>' to give it a new name\n"),
4156 		    "zpool import");
4157 		err = 1;
4158 	} else if (pools == NULL && pool_exists) {
4159 		(void) fprintf(stderr, gettext("cannot import '%s': "
4160 		    "a pool with that name is already created/imported,\n"),
4161 		    argv[0]);
4162 		(void) fprintf(stderr, gettext("and no additional pools "
4163 		    "with that name were found\n"));
4164 		err = 1;
4165 	} else if (pools == NULL) {
4166 		if (argc != 0) {
4167 			(void) fprintf(stderr, gettext("cannot import '%s': "
4168 			    "no such pool available\n"), argv[0]);
4169 		}
4170 		err = 1;
4171 	}
4172 
4173 	if (err == 1) {
4174 		free(searchdirs);
4175 		free(envdup);
4176 		nvlist_free(policy);
4177 		nvlist_free(pools);
4178 		nvlist_free(props);
4179 		return (1);
4180 	}
4181 
4182 	err = import_pools(pools, props, mntopts, flags,
4183 	    argc >= 1 ? argv[0] : NULL, argc >= 2 ? argv[1] : NULL, &idata);
4184 
4185 	/*
4186 	 * If we're using the cachefile and we failed to import, then
4187 	 * fallback to scanning the directory for pools that match
4188 	 * those in the cachefile.
4189 	 */
4190 	if (err != 0 && cachefile != NULL) {
4191 		(void) printf(gettext("cachefile import failed, retrying\n"));
4192 
4193 		/*
4194 		 * We use the scan flag to gather the directories that exist
4195 		 * in the cachefile. If we need to fallback to searching for
4196 		 * the pool config, we will only search devices in these
4197 		 * directories.
4198 		 */
4199 		idata.scan = B_TRUE;
4200 		nvlist_free(pools);
4201 		pools = zpool_search_import(&lpch, &idata);
4202 
4203 		err = import_pools(pools, props, mntopts, flags,
4204 		    argc >= 1 ? argv[0] : NULL, argc >= 2 ? argv[1] : NULL,
4205 		    &idata);
4206 	}
4207 
4208 error:
4209 	nvlist_free(props);
4210 	nvlist_free(pools);
4211 	nvlist_free(policy);
4212 	free(searchdirs);
4213 	free(envdup);
4214 
4215 	return (err ? 1 : 0);
4216 }
4217 
4218 /*
4219  * zpool sync [-f] [pool] ...
4220  *
4221  * -f (undocumented) force uberblock (and config including zpool cache file)
4222  *    update.
4223  *
4224  * Sync the specified pool(s).
4225  * Without arguments "zpool sync" will sync all pools.
4226  * This command initiates TXG sync(s) and will return after the TXG(s) commit.
4227  *
4228  */
4229 static int
4230 zpool_do_sync(int argc, char **argv)
4231 {
4232 	int ret;
4233 	boolean_t force = B_FALSE;
4234 
4235 	/* check options */
4236 	while ((ret  = getopt(argc, argv, "f")) != -1) {
4237 		switch (ret) {
4238 		case 'f':
4239 			force = B_TRUE;
4240 			break;
4241 		case '?':
4242 			(void) fprintf(stderr, gettext("invalid option '%c'\n"),
4243 			    optopt);
4244 			usage(B_FALSE);
4245 		}
4246 	}
4247 
4248 	argc -= optind;
4249 	argv += optind;
4250 
4251 	/* if argc == 0 we will execute zpool_sync_one on all pools */
4252 	ret = for_each_pool(argc, argv, B_FALSE, NULL, ZFS_TYPE_POOL,
4253 	    B_FALSE, zpool_sync_one, &force);
4254 
4255 	return (ret);
4256 }
4257 
4258 typedef struct iostat_cbdata {
4259 	uint64_t cb_flags;
4260 	int cb_namewidth;
4261 	int cb_iteration;
4262 	boolean_t cb_verbose;
4263 	boolean_t cb_literal;
4264 	boolean_t cb_scripted;
4265 	zpool_list_t *cb_list;
4266 	vdev_cmd_data_list_t *vcdl;
4267 	vdev_cbdata_t cb_vdevs;
4268 } iostat_cbdata_t;
4269 
4270 /*  iostat labels */
4271 typedef struct name_and_columns {
4272 	const char *name;	/* Column name */
4273 	unsigned int columns;	/* Center name to this number of columns */
4274 } name_and_columns_t;
4275 
4276 #define	IOSTAT_MAX_LABELS	15	/* Max number of labels on one line */
4277 
4278 static const name_and_columns_t iostat_top_labels[][IOSTAT_MAX_LABELS] =
4279 {
4280 	[IOS_DEFAULT] = {{"capacity", 2}, {"operations", 2}, {"bandwidth", 2},
4281 	    {NULL}},
4282 	[IOS_LATENCY] = {{"total_wait", 2}, {"disk_wait", 2}, {"syncq_wait", 2},
4283 	    {"asyncq_wait", 2}, {"scrub", 1}, {"trim", 1}, {"rebuild", 1},
4284 	    {NULL}},
4285 	[IOS_QUEUES] = {{"syncq_read", 2}, {"syncq_write", 2},
4286 	    {"asyncq_read", 2}, {"asyncq_write", 2}, {"scrubq_read", 2},
4287 	    {"trimq_write", 2}, {"rebuildq_write", 2}, {NULL}},
4288 	[IOS_L_HISTO] = {{"total_wait", 2}, {"disk_wait", 2}, {"syncq_wait", 2},
4289 	    {"asyncq_wait", 2}, {NULL}},
4290 	[IOS_RQ_HISTO] = {{"sync_read", 2}, {"sync_write", 2},
4291 	    {"async_read", 2}, {"async_write", 2}, {"scrub", 2},
4292 	    {"trim", 2}, {"rebuild", 2}, {NULL}},
4293 };
4294 
4295 /* Shorthand - if "columns" field not set, default to 1 column */
4296 static const name_and_columns_t iostat_bottom_labels[][IOSTAT_MAX_LABELS] =
4297 {
4298 	[IOS_DEFAULT] = {{"alloc"}, {"free"}, {"read"}, {"write"}, {"read"},
4299 	    {"write"}, {NULL}},
4300 	[IOS_LATENCY] = {{"read"}, {"write"}, {"read"}, {"write"}, {"read"},
4301 	    {"write"}, {"read"}, {"write"}, {"wait"}, {"wait"}, {"wait"},
4302 	    {NULL}},
4303 	[IOS_QUEUES] = {{"pend"}, {"activ"}, {"pend"}, {"activ"}, {"pend"},
4304 	    {"activ"}, {"pend"}, {"activ"}, {"pend"}, {"activ"},
4305 	    {"pend"}, {"activ"}, {"pend"}, {"activ"}, {NULL}},
4306 	[IOS_L_HISTO] = {{"read"}, {"write"}, {"read"}, {"write"}, {"read"},
4307 	    {"write"}, {"read"}, {"write"}, {"scrub"}, {"trim"}, {"rebuild"},
4308 	    {NULL}},
4309 	[IOS_RQ_HISTO] = {{"ind"}, {"agg"}, {"ind"}, {"agg"}, {"ind"}, {"agg"},
4310 	    {"ind"}, {"agg"}, {"ind"}, {"agg"}, {"ind"}, {"agg"},
4311 	    {"ind"}, {"agg"}, {NULL}},
4312 };
4313 
4314 static const char *histo_to_title[] = {
4315 	[IOS_L_HISTO] = "latency",
4316 	[IOS_RQ_HISTO] = "req_size",
4317 };
4318 
4319 /*
4320  * Return the number of labels in a null-terminated name_and_columns_t
4321  * array.
4322  *
4323  */
4324 static unsigned int
4325 label_array_len(const name_and_columns_t *labels)
4326 {
4327 	int i = 0;
4328 
4329 	while (labels[i].name)
4330 		i++;
4331 
4332 	return (i);
4333 }
4334 
4335 /*
4336  * Return the number of strings in a null-terminated string array.
4337  * For example:
4338  *
4339  *     const char foo[] = {"bar", "baz", NULL}
4340  *
4341  * returns 2
4342  */
4343 static uint64_t
4344 str_array_len(const char *array[])
4345 {
4346 	uint64_t i = 0;
4347 	while (array[i])
4348 		i++;
4349 
4350 	return (i);
4351 }
4352 
4353 
4354 /*
4355  * Return a default column width for default/latency/queue columns. This does
4356  * not include histograms, which have their columns autosized.
4357  */
4358 static unsigned int
4359 default_column_width(iostat_cbdata_t *cb, enum iostat_type type)
4360 {
4361 	unsigned long column_width = 5; /* Normal niceprint */
4362 	static unsigned long widths[] = {
4363 		/*
4364 		 * Choose some sane default column sizes for printing the
4365 		 * raw numbers.
4366 		 */
4367 		[IOS_DEFAULT] = 15, /* 1PB capacity */
4368 		[IOS_LATENCY] = 10, /* 1B ns = 10sec */
4369 		[IOS_QUEUES] = 6,   /* 1M queue entries */
4370 		[IOS_L_HISTO] = 10, /* 1B ns = 10sec */
4371 		[IOS_RQ_HISTO] = 6, /* 1M queue entries */
4372 	};
4373 
4374 	if (cb->cb_literal)
4375 		column_width = widths[type];
4376 
4377 	return (column_width);
4378 }
4379 
4380 /*
4381  * Print the column labels, i.e:
4382  *
4383  *   capacity     operations     bandwidth
4384  * alloc   free   read  write   read  write  ...
4385  *
4386  * If force_column_width is set, use it for the column width.  If not set, use
4387  * the default column width.
4388  */
4389 static void
4390 print_iostat_labels(iostat_cbdata_t *cb, unsigned int force_column_width,
4391     const name_and_columns_t labels[][IOSTAT_MAX_LABELS])
4392 {
4393 	int i, idx, s;
4394 	int text_start, rw_column_width, spaces_to_end;
4395 	uint64_t flags = cb->cb_flags;
4396 	uint64_t f;
4397 	unsigned int column_width = force_column_width;
4398 
4399 	/* For each bit set in flags */
4400 	for (f = flags; f; f &= ~(1ULL << idx)) {
4401 		idx = lowbit64(f) - 1;
4402 		if (!force_column_width)
4403 			column_width = default_column_width(cb, idx);
4404 		/* Print our top labels centered over "read  write" label. */
4405 		for (i = 0; i < label_array_len(labels[idx]); i++) {
4406 			const char *name = labels[idx][i].name;
4407 			/*
4408 			 * We treat labels[][].columns == 0 as shorthand
4409 			 * for one column.  It makes writing out the label
4410 			 * tables more concise.
4411 			 */
4412 			unsigned int columns = MAX(1, labels[idx][i].columns);
4413 			unsigned int slen = strlen(name);
4414 
4415 			rw_column_width = (column_width * columns) +
4416 			    (2 * (columns - 1));
4417 
4418 			text_start = (int)((rw_column_width) / columns -
4419 			    slen / columns);
4420 			if (text_start < 0)
4421 				text_start = 0;
4422 
4423 			printf("  ");	/* Two spaces between columns */
4424 
4425 			/* Space from beginning of column to label */
4426 			for (s = 0; s < text_start; s++)
4427 				printf(" ");
4428 
4429 			printf("%s", name);
4430 
4431 			/* Print space after label to end of column */
4432 			spaces_to_end = rw_column_width - text_start - slen;
4433 			if (spaces_to_end < 0)
4434 				spaces_to_end = 0;
4435 
4436 			for (s = 0; s < spaces_to_end; s++)
4437 				printf(" ");
4438 		}
4439 	}
4440 }
4441 
4442 
4443 /*
4444  * print_cmd_columns - Print custom column titles from -c
4445  *
4446  * If the user specified the "zpool status|iostat -c" then print their custom
4447  * column titles in the header.  For example, print_cmd_columns() would print
4448  * the "  col1  col2" part of this:
4449  *
4450  * $ zpool iostat -vc 'echo col1=val1; echo col2=val2'
4451  * ...
4452  *	      capacity     operations     bandwidth
4453  * pool        alloc   free   read  write   read  write  col1  col2
4454  * ----------  -----  -----  -----  -----  -----  -----  ----  ----
4455  * mypool       269K  1008M      0      0    107    946
4456  *   mirror     269K  1008M      0      0    107    946
4457  *     sdb         -      -      0      0    102    473  val1  val2
4458  *     sdc         -      -      0      0      5    473  val1  val2
4459  * ----------  -----  -----  -----  -----  -----  -----  ----  ----
4460  */
4461 static void
4462 print_cmd_columns(vdev_cmd_data_list_t *vcdl, int use_dashes)
4463 {
4464 	int i, j;
4465 	vdev_cmd_data_t *data = &vcdl->data[0];
4466 
4467 	if (vcdl->count == 0 || data == NULL)
4468 		return;
4469 
4470 	/*
4471 	 * Each vdev cmd should have the same column names unless the user did
4472 	 * something weird with their cmd.  Just take the column names from the
4473 	 * first vdev and assume it works for all of them.
4474 	 */
4475 	for (i = 0; i < vcdl->uniq_cols_cnt; i++) {
4476 		printf("  ");
4477 		if (use_dashes) {
4478 			for (j = 0; j < vcdl->uniq_cols_width[i]; j++)
4479 				printf("-");
4480 		} else {
4481 			printf_color(ANSI_BOLD, "%*s", vcdl->uniq_cols_width[i],
4482 			    vcdl->uniq_cols[i]);
4483 		}
4484 	}
4485 }
4486 
4487 
4488 /*
4489  * Utility function to print out a line of dashes like:
4490  *
4491  * 	--------------------------------  -----  -----  -----  -----  -----
4492  *
4493  * ...or a dashed named-row line like:
4494  *
4495  * 	logs                                  -      -      -      -      -
4496  *
4497  * @cb:				iostat data
4498  *
4499  * @force_column_width		If non-zero, use the value as the column width.
4500  * 				Otherwise use the default column widths.
4501  *
4502  * @name:			Print a dashed named-row line starting
4503  * 				with @name.  Otherwise, print a regular
4504  * 				dashed line.
4505  */
4506 static void
4507 print_iostat_dashes(iostat_cbdata_t *cb, unsigned int force_column_width,
4508     const char *name)
4509 {
4510 	int i;
4511 	unsigned int namewidth;
4512 	uint64_t flags = cb->cb_flags;
4513 	uint64_t f;
4514 	int idx;
4515 	const name_and_columns_t *labels;
4516 	const char *title;
4517 
4518 
4519 	if (cb->cb_flags & IOS_ANYHISTO_M) {
4520 		title = histo_to_title[IOS_HISTO_IDX(cb->cb_flags)];
4521 	} else if (cb->cb_vdevs.cb_names_count) {
4522 		title = "vdev";
4523 	} else  {
4524 		title = "pool";
4525 	}
4526 
4527 	namewidth = MAX(MAX(strlen(title), cb->cb_namewidth),
4528 	    name ? strlen(name) : 0);
4529 
4530 
4531 	if (name) {
4532 		printf("%-*s", namewidth, name);
4533 	} else {
4534 		for (i = 0; i < namewidth; i++)
4535 			(void) printf("-");
4536 	}
4537 
4538 	/* For each bit in flags */
4539 	for (f = flags; f; f &= ~(1ULL << idx)) {
4540 		unsigned int column_width;
4541 		idx = lowbit64(f) - 1;
4542 		if (force_column_width)
4543 			column_width = force_column_width;
4544 		else
4545 			column_width = default_column_width(cb, idx);
4546 
4547 		labels = iostat_bottom_labels[idx];
4548 		for (i = 0; i < label_array_len(labels); i++) {
4549 			if (name)
4550 				printf("  %*s-", column_width - 1, " ");
4551 			else
4552 				printf("  %.*s", column_width,
4553 				    "--------------------");
4554 		}
4555 	}
4556 }
4557 
4558 
4559 static void
4560 print_iostat_separator_impl(iostat_cbdata_t *cb,
4561     unsigned int force_column_width)
4562 {
4563 	print_iostat_dashes(cb, force_column_width, NULL);
4564 }
4565 
4566 static void
4567 print_iostat_separator(iostat_cbdata_t *cb)
4568 {
4569 	print_iostat_separator_impl(cb, 0);
4570 }
4571 
4572 static void
4573 print_iostat_header_impl(iostat_cbdata_t *cb, unsigned int force_column_width,
4574     const char *histo_vdev_name)
4575 {
4576 	unsigned int namewidth;
4577 	const char *title;
4578 
4579 	color_start(ANSI_BOLD);
4580 
4581 	if (cb->cb_flags & IOS_ANYHISTO_M) {
4582 		title = histo_to_title[IOS_HISTO_IDX(cb->cb_flags)];
4583 	} else if (cb->cb_vdevs.cb_names_count) {
4584 		title = "vdev";
4585 	} else  {
4586 		title = "pool";
4587 	}
4588 
4589 	namewidth = MAX(MAX(strlen(title), cb->cb_namewidth),
4590 	    histo_vdev_name ? strlen(histo_vdev_name) : 0);
4591 
4592 	if (histo_vdev_name)
4593 		printf("%-*s", namewidth, histo_vdev_name);
4594 	else
4595 		printf("%*s", namewidth, "");
4596 
4597 
4598 	print_iostat_labels(cb, force_column_width, iostat_top_labels);
4599 	printf("\n");
4600 
4601 	printf("%-*s", namewidth, title);
4602 
4603 	print_iostat_labels(cb, force_column_width, iostat_bottom_labels);
4604 	if (cb->vcdl != NULL)
4605 		print_cmd_columns(cb->vcdl, 0);
4606 
4607 	printf("\n");
4608 
4609 	print_iostat_separator_impl(cb, force_column_width);
4610 
4611 	if (cb->vcdl != NULL)
4612 		print_cmd_columns(cb->vcdl, 1);
4613 
4614 	color_end();
4615 
4616 	printf("\n");
4617 }
4618 
4619 static void
4620 print_iostat_header(iostat_cbdata_t *cb)
4621 {
4622 	print_iostat_header_impl(cb, 0, NULL);
4623 }
4624 
4625 /*
4626  * Prints a size string (i.e. 120M) with the suffix ("M") colored
4627  * by order of magnitude. Uses column_size to add padding.
4628  */
4629 static void
4630 print_stat_color(const char *statbuf, unsigned int column_size)
4631 {
4632 	fputs("  ", stdout);
4633 	size_t len = strlen(statbuf);
4634 	while (len < column_size) {
4635 		fputc(' ', stdout);
4636 		column_size--;
4637 	}
4638 	if (*statbuf == '0') {
4639 		color_start(ANSI_GRAY);
4640 		fputc('0', stdout);
4641 	} else {
4642 		for (; *statbuf; statbuf++) {
4643 			if (*statbuf == 'K') color_start(ANSI_GREEN);
4644 			else if (*statbuf == 'M') color_start(ANSI_YELLOW);
4645 			else if (*statbuf == 'G') color_start(ANSI_RED);
4646 			else if (*statbuf == 'T') color_start(ANSI_BOLD_BLUE);
4647 			else if (*statbuf == 'P') color_start(ANSI_MAGENTA);
4648 			else if (*statbuf == 'E') color_start(ANSI_CYAN);
4649 			fputc(*statbuf, stdout);
4650 			if (--column_size <= 0)
4651 				break;
4652 		}
4653 	}
4654 	color_end();
4655 }
4656 
4657 /*
4658  * Display a single statistic.
4659  */
4660 static void
4661 print_one_stat(uint64_t value, enum zfs_nicenum_format format,
4662     unsigned int column_size, boolean_t scripted)
4663 {
4664 	char buf[64];
4665 
4666 	zfs_nicenum_format(value, buf, sizeof (buf), format);
4667 
4668 	if (scripted)
4669 		printf("\t%s", buf);
4670 	else
4671 		print_stat_color(buf, column_size);
4672 }
4673 
4674 /*
4675  * Calculate the default vdev stats
4676  *
4677  * Subtract oldvs from newvs, apply a scaling factor, and save the resulting
4678  * stats into calcvs.
4679  */
4680 static void
4681 calc_default_iostats(vdev_stat_t *oldvs, vdev_stat_t *newvs,
4682     vdev_stat_t *calcvs)
4683 {
4684 	int i;
4685 
4686 	memcpy(calcvs, newvs, sizeof (*calcvs));
4687 	for (i = 0; i < ARRAY_SIZE(calcvs->vs_ops); i++)
4688 		calcvs->vs_ops[i] = (newvs->vs_ops[i] - oldvs->vs_ops[i]);
4689 
4690 	for (i = 0; i < ARRAY_SIZE(calcvs->vs_bytes); i++)
4691 		calcvs->vs_bytes[i] = (newvs->vs_bytes[i] - oldvs->vs_bytes[i]);
4692 }
4693 
4694 /*
4695  * Internal representation of the extended iostats data.
4696  *
4697  * The extended iostat stats are exported in nvlists as either uint64_t arrays
4698  * or single uint64_t's.  We make both look like arrays to make them easier
4699  * to process.  In order to make single uint64_t's look like arrays, we set
4700  * __data to the stat data, and then set *data = &__data with count = 1.  Then,
4701  * we can just use *data and count.
4702  */
4703 struct stat_array {
4704 	uint64_t *data;
4705 	uint_t count;	/* Number of entries in data[] */
4706 	uint64_t __data; /* Only used when data is a single uint64_t */
4707 };
4708 
4709 static uint64_t
4710 stat_histo_max(struct stat_array *nva, unsigned int len)
4711 {
4712 	uint64_t max = 0;
4713 	int i;
4714 	for (i = 0; i < len; i++)
4715 		max = MAX(max, array64_max(nva[i].data, nva[i].count));
4716 
4717 	return (max);
4718 }
4719 
4720 /*
4721  * Helper function to lookup a uint64_t array or uint64_t value and store its
4722  * data as a stat_array.  If the nvpair is a single uint64_t value, then we make
4723  * it look like a one element array to make it easier to process.
4724  */
4725 static int
4726 nvpair64_to_stat_array(nvlist_t *nvl, const char *name,
4727     struct stat_array *nva)
4728 {
4729 	nvpair_t *tmp;
4730 	int ret;
4731 
4732 	verify(nvlist_lookup_nvpair(nvl, name, &tmp) == 0);
4733 	switch (nvpair_type(tmp)) {
4734 	case DATA_TYPE_UINT64_ARRAY:
4735 		ret = nvpair_value_uint64_array(tmp, &nva->data, &nva->count);
4736 		break;
4737 	case DATA_TYPE_UINT64:
4738 		ret = nvpair_value_uint64(tmp, &nva->__data);
4739 		nva->data = &nva->__data;
4740 		nva->count = 1;
4741 		break;
4742 	default:
4743 		/* Not a uint64_t */
4744 		ret = EINVAL;
4745 		break;
4746 	}
4747 
4748 	return (ret);
4749 }
4750 
4751 /*
4752  * Given a list of nvlist names, look up the extended stats in newnv and oldnv,
4753  * subtract them, and return the results in a newly allocated stat_array.
4754  * You must free the returned array after you are done with it with
4755  * free_calc_stats().
4756  *
4757  * Additionally, you can set "oldnv" to NULL if you simply want the newnv
4758  * values.
4759  */
4760 static struct stat_array *
4761 calc_and_alloc_stats_ex(const char **names, unsigned int len, nvlist_t *oldnv,
4762     nvlist_t *newnv)
4763 {
4764 	nvlist_t *oldnvx = NULL, *newnvx;
4765 	struct stat_array *oldnva, *newnva, *calcnva;
4766 	int i, j;
4767 	unsigned int alloc_size = (sizeof (struct stat_array)) * len;
4768 
4769 	/* Extract our extended stats nvlist from the main list */
4770 	verify(nvlist_lookup_nvlist(newnv, ZPOOL_CONFIG_VDEV_STATS_EX,
4771 	    &newnvx) == 0);
4772 	if (oldnv) {
4773 		verify(nvlist_lookup_nvlist(oldnv, ZPOOL_CONFIG_VDEV_STATS_EX,
4774 		    &oldnvx) == 0);
4775 	}
4776 
4777 	newnva = safe_malloc(alloc_size);
4778 	oldnva = safe_malloc(alloc_size);
4779 	calcnva = safe_malloc(alloc_size);
4780 
4781 	for (j = 0; j < len; j++) {
4782 		verify(nvpair64_to_stat_array(newnvx, names[j],
4783 		    &newnva[j]) == 0);
4784 		calcnva[j].count = newnva[j].count;
4785 		alloc_size = calcnva[j].count * sizeof (calcnva[j].data[0]);
4786 		calcnva[j].data = safe_malloc(alloc_size);
4787 		memcpy(calcnva[j].data, newnva[j].data, alloc_size);
4788 
4789 		if (oldnvx) {
4790 			verify(nvpair64_to_stat_array(oldnvx, names[j],
4791 			    &oldnva[j]) == 0);
4792 			for (i = 0; i < oldnva[j].count; i++)
4793 				calcnva[j].data[i] -= oldnva[j].data[i];
4794 		}
4795 	}
4796 	free(newnva);
4797 	free(oldnva);
4798 	return (calcnva);
4799 }
4800 
4801 static void
4802 free_calc_stats(struct stat_array *nva, unsigned int len)
4803 {
4804 	int i;
4805 	for (i = 0; i < len; i++)
4806 		free(nva[i].data);
4807 
4808 	free(nva);
4809 }
4810 
4811 static void
4812 print_iostat_histo(struct stat_array *nva, unsigned int len,
4813     iostat_cbdata_t *cb, unsigned int column_width, unsigned int namewidth,
4814     double scale)
4815 {
4816 	int i, j;
4817 	char buf[6];
4818 	uint64_t val;
4819 	enum zfs_nicenum_format format;
4820 	unsigned int buckets;
4821 	unsigned int start_bucket;
4822 
4823 	if (cb->cb_literal)
4824 		format = ZFS_NICENUM_RAW;
4825 	else
4826 		format = ZFS_NICENUM_1024;
4827 
4828 	/* All these histos are the same size, so just use nva[0].count */
4829 	buckets = nva[0].count;
4830 
4831 	if (cb->cb_flags & IOS_RQ_HISTO_M) {
4832 		/* Start at 512 - req size should never be lower than this */
4833 		start_bucket = 9;
4834 	} else {
4835 		start_bucket = 0;
4836 	}
4837 
4838 	for (j = start_bucket; j < buckets; j++) {
4839 		/* Print histogram bucket label */
4840 		if (cb->cb_flags & IOS_L_HISTO_M) {
4841 			/* Ending range of this bucket */
4842 			val = (1UL << (j + 1)) - 1;
4843 			zfs_nicetime(val, buf, sizeof (buf));
4844 		} else {
4845 			/* Request size (starting range of bucket) */
4846 			val = (1UL << j);
4847 			zfs_nicenum(val, buf, sizeof (buf));
4848 		}
4849 
4850 		if (cb->cb_scripted)
4851 			printf("%llu", (u_longlong_t)val);
4852 		else
4853 			printf("%-*s", namewidth, buf);
4854 
4855 		/* Print the values on the line */
4856 		for (i = 0; i < len; i++) {
4857 			print_one_stat(nva[i].data[j] * scale, format,
4858 			    column_width, cb->cb_scripted);
4859 		}
4860 		printf("\n");
4861 	}
4862 }
4863 
4864 static void
4865 print_solid_separator(unsigned int length)
4866 {
4867 	while (length--)
4868 		printf("-");
4869 	printf("\n");
4870 }
4871 
4872 static void
4873 print_iostat_histos(iostat_cbdata_t *cb, nvlist_t *oldnv,
4874     nvlist_t *newnv, double scale, const char *name)
4875 {
4876 	unsigned int column_width;
4877 	unsigned int namewidth;
4878 	unsigned int entire_width;
4879 	enum iostat_type type;
4880 	struct stat_array *nva;
4881 	const char **names;
4882 	unsigned int names_len;
4883 
4884 	/* What type of histo are we? */
4885 	type = IOS_HISTO_IDX(cb->cb_flags);
4886 
4887 	/* Get NULL-terminated array of nvlist names for our histo */
4888 	names = vsx_type_to_nvlist[type];
4889 	names_len = str_array_len(names); /* num of names */
4890 
4891 	nva = calc_and_alloc_stats_ex(names, names_len, oldnv, newnv);
4892 
4893 	if (cb->cb_literal) {
4894 		column_width = MAX(5,
4895 		    (unsigned int) log10(stat_histo_max(nva, names_len)) + 1);
4896 	} else {
4897 		column_width = 5;
4898 	}
4899 
4900 	namewidth = MAX(cb->cb_namewidth,
4901 	    strlen(histo_to_title[IOS_HISTO_IDX(cb->cb_flags)]));
4902 
4903 	/*
4904 	 * Calculate the entire line width of what we're printing.  The
4905 	 * +2 is for the two spaces between columns:
4906 	 */
4907 	/*	 read  write				*/
4908 	/*	-----  -----				*/
4909 	/*	|___|  <---------- column_width		*/
4910 	/*						*/
4911 	/*	|__________|  <--- entire_width		*/
4912 	/*						*/
4913 	entire_width = namewidth + (column_width + 2) *
4914 	    label_array_len(iostat_bottom_labels[type]);
4915 
4916 	if (cb->cb_scripted)
4917 		printf("%s\n", name);
4918 	else
4919 		print_iostat_header_impl(cb, column_width, name);
4920 
4921 	print_iostat_histo(nva, names_len, cb, column_width,
4922 	    namewidth, scale);
4923 
4924 	free_calc_stats(nva, names_len);
4925 	if (!cb->cb_scripted)
4926 		print_solid_separator(entire_width);
4927 }
4928 
4929 /*
4930  * Calculate the average latency of a power-of-two latency histogram
4931  */
4932 static uint64_t
4933 single_histo_average(uint64_t *histo, unsigned int buckets)
4934 {
4935 	int i;
4936 	uint64_t count = 0, total = 0;
4937 
4938 	for (i = 0; i < buckets; i++) {
4939 		/*
4940 		 * Our buckets are power-of-two latency ranges.  Use the
4941 		 * midpoint latency of each bucket to calculate the average.
4942 		 * For example:
4943 		 *
4944 		 * Bucket          Midpoint
4945 		 * 8ns-15ns:       12ns
4946 		 * 16ns-31ns:      24ns
4947 		 * ...
4948 		 */
4949 		if (histo[i] != 0) {
4950 			total += histo[i] * (((1UL << i) + ((1UL << i)/2)));
4951 			count += histo[i];
4952 		}
4953 	}
4954 
4955 	/* Prevent divide by zero */
4956 	return (count == 0 ? 0 : total / count);
4957 }
4958 
4959 static void
4960 print_iostat_queues(iostat_cbdata_t *cb, nvlist_t *newnv)
4961 {
4962 	const char *names[] = {
4963 		ZPOOL_CONFIG_VDEV_SYNC_R_PEND_QUEUE,
4964 		ZPOOL_CONFIG_VDEV_SYNC_R_ACTIVE_QUEUE,
4965 		ZPOOL_CONFIG_VDEV_SYNC_W_PEND_QUEUE,
4966 		ZPOOL_CONFIG_VDEV_SYNC_W_ACTIVE_QUEUE,
4967 		ZPOOL_CONFIG_VDEV_ASYNC_R_PEND_QUEUE,
4968 		ZPOOL_CONFIG_VDEV_ASYNC_R_ACTIVE_QUEUE,
4969 		ZPOOL_CONFIG_VDEV_ASYNC_W_PEND_QUEUE,
4970 		ZPOOL_CONFIG_VDEV_ASYNC_W_ACTIVE_QUEUE,
4971 		ZPOOL_CONFIG_VDEV_SCRUB_PEND_QUEUE,
4972 		ZPOOL_CONFIG_VDEV_SCRUB_ACTIVE_QUEUE,
4973 		ZPOOL_CONFIG_VDEV_TRIM_PEND_QUEUE,
4974 		ZPOOL_CONFIG_VDEV_TRIM_ACTIVE_QUEUE,
4975 		ZPOOL_CONFIG_VDEV_REBUILD_PEND_QUEUE,
4976 		ZPOOL_CONFIG_VDEV_REBUILD_ACTIVE_QUEUE,
4977 	};
4978 
4979 	struct stat_array *nva;
4980 
4981 	unsigned int column_width = default_column_width(cb, IOS_QUEUES);
4982 	enum zfs_nicenum_format format;
4983 
4984 	nva = calc_and_alloc_stats_ex(names, ARRAY_SIZE(names), NULL, newnv);
4985 
4986 	if (cb->cb_literal)
4987 		format = ZFS_NICENUM_RAW;
4988 	else
4989 		format = ZFS_NICENUM_1024;
4990 
4991 	for (int i = 0; i < ARRAY_SIZE(names); i++) {
4992 		uint64_t val = nva[i].data[0];
4993 		print_one_stat(val, format, column_width, cb->cb_scripted);
4994 	}
4995 
4996 	free_calc_stats(nva, ARRAY_SIZE(names));
4997 }
4998 
4999 static void
5000 print_iostat_latency(iostat_cbdata_t *cb, nvlist_t *oldnv,
5001     nvlist_t *newnv)
5002 {
5003 	int i;
5004 	uint64_t val;
5005 	const char *names[] = {
5006 		ZPOOL_CONFIG_VDEV_TOT_R_LAT_HISTO,
5007 		ZPOOL_CONFIG_VDEV_TOT_W_LAT_HISTO,
5008 		ZPOOL_CONFIG_VDEV_DISK_R_LAT_HISTO,
5009 		ZPOOL_CONFIG_VDEV_DISK_W_LAT_HISTO,
5010 		ZPOOL_CONFIG_VDEV_SYNC_R_LAT_HISTO,
5011 		ZPOOL_CONFIG_VDEV_SYNC_W_LAT_HISTO,
5012 		ZPOOL_CONFIG_VDEV_ASYNC_R_LAT_HISTO,
5013 		ZPOOL_CONFIG_VDEV_ASYNC_W_LAT_HISTO,
5014 		ZPOOL_CONFIG_VDEV_SCRUB_LAT_HISTO,
5015 		ZPOOL_CONFIG_VDEV_TRIM_LAT_HISTO,
5016 		ZPOOL_CONFIG_VDEV_REBUILD_LAT_HISTO,
5017 	};
5018 	struct stat_array *nva;
5019 
5020 	unsigned int column_width = default_column_width(cb, IOS_LATENCY);
5021 	enum zfs_nicenum_format format;
5022 
5023 	nva = calc_and_alloc_stats_ex(names, ARRAY_SIZE(names), oldnv, newnv);
5024 
5025 	if (cb->cb_literal)
5026 		format = ZFS_NICENUM_RAWTIME;
5027 	else
5028 		format = ZFS_NICENUM_TIME;
5029 
5030 	/* Print our avg latencies on the line */
5031 	for (i = 0; i < ARRAY_SIZE(names); i++) {
5032 		/* Compute average latency for a latency histo */
5033 		val = single_histo_average(nva[i].data, nva[i].count);
5034 		print_one_stat(val, format, column_width, cb->cb_scripted);
5035 	}
5036 	free_calc_stats(nva, ARRAY_SIZE(names));
5037 }
5038 
5039 /*
5040  * Print default statistics (capacity/operations/bandwidth)
5041  */
5042 static void
5043 print_iostat_default(vdev_stat_t *vs, iostat_cbdata_t *cb, double scale)
5044 {
5045 	unsigned int column_width = default_column_width(cb, IOS_DEFAULT);
5046 	enum zfs_nicenum_format format;
5047 	char na;	/* char to print for "not applicable" values */
5048 
5049 	if (cb->cb_literal) {
5050 		format = ZFS_NICENUM_RAW;
5051 		na = '0';
5052 	} else {
5053 		format = ZFS_NICENUM_1024;
5054 		na = '-';
5055 	}
5056 
5057 	/* only toplevel vdevs have capacity stats */
5058 	if (vs->vs_space == 0) {
5059 		if (cb->cb_scripted)
5060 			printf("\t%c\t%c", na, na);
5061 		else
5062 			printf("  %*c  %*c", column_width, na, column_width,
5063 			    na);
5064 	} else {
5065 		print_one_stat(vs->vs_alloc, format, column_width,
5066 		    cb->cb_scripted);
5067 		print_one_stat(vs->vs_space - vs->vs_alloc, format,
5068 		    column_width, cb->cb_scripted);
5069 	}
5070 
5071 	print_one_stat((uint64_t)(vs->vs_ops[ZIO_TYPE_READ] * scale),
5072 	    format, column_width, cb->cb_scripted);
5073 	print_one_stat((uint64_t)(vs->vs_ops[ZIO_TYPE_WRITE] * scale),
5074 	    format, column_width, cb->cb_scripted);
5075 	print_one_stat((uint64_t)(vs->vs_bytes[ZIO_TYPE_READ] * scale),
5076 	    format, column_width, cb->cb_scripted);
5077 	print_one_stat((uint64_t)(vs->vs_bytes[ZIO_TYPE_WRITE] * scale),
5078 	    format, column_width, cb->cb_scripted);
5079 }
5080 
5081 static const char *const class_name[] = {
5082 	VDEV_ALLOC_BIAS_DEDUP,
5083 	VDEV_ALLOC_BIAS_SPECIAL,
5084 	VDEV_ALLOC_CLASS_LOGS
5085 };
5086 
5087 /*
5088  * Print out all the statistics for the given vdev.  This can either be the
5089  * toplevel configuration, or called recursively.  If 'name' is NULL, then this
5090  * is a verbose output, and we don't want to display the toplevel pool stats.
5091  *
5092  * Returns the number of stat lines printed.
5093  */
5094 static unsigned int
5095 print_vdev_stats(zpool_handle_t *zhp, const char *name, nvlist_t *oldnv,
5096     nvlist_t *newnv, iostat_cbdata_t *cb, int depth)
5097 {
5098 	nvlist_t **oldchild, **newchild;
5099 	uint_t c, children, oldchildren;
5100 	vdev_stat_t *oldvs, *newvs, *calcvs;
5101 	vdev_stat_t zerovs = { 0 };
5102 	char *vname;
5103 	int i;
5104 	int ret = 0;
5105 	uint64_t tdelta;
5106 	double scale;
5107 
5108 	if (strcmp(name, VDEV_TYPE_INDIRECT) == 0)
5109 		return (ret);
5110 
5111 	calcvs = safe_malloc(sizeof (*calcvs));
5112 
5113 	if (oldnv != NULL) {
5114 		verify(nvlist_lookup_uint64_array(oldnv,
5115 		    ZPOOL_CONFIG_VDEV_STATS, (uint64_t **)&oldvs, &c) == 0);
5116 	} else {
5117 		oldvs = &zerovs;
5118 	}
5119 
5120 	/* Do we only want to see a specific vdev? */
5121 	for (i = 0; i < cb->cb_vdevs.cb_names_count; i++) {
5122 		/* Yes we do.  Is this the vdev? */
5123 		if (strcmp(name, cb->cb_vdevs.cb_names[i]) == 0) {
5124 			/*
5125 			 * This is our vdev.  Since it is the only vdev we
5126 			 * will be displaying, make depth = 0 so that it
5127 			 * doesn't get indented.
5128 			 */
5129 			depth = 0;
5130 			break;
5131 		}
5132 	}
5133 
5134 	if (cb->cb_vdevs.cb_names_count && (i == cb->cb_vdevs.cb_names_count)) {
5135 		/* Couldn't match the name */
5136 		goto children;
5137 	}
5138 
5139 
5140 	verify(nvlist_lookup_uint64_array(newnv, ZPOOL_CONFIG_VDEV_STATS,
5141 	    (uint64_t **)&newvs, &c) == 0);
5142 
5143 	/*
5144 	 * Print the vdev name unless it's is a histogram.  Histograms
5145 	 * display the vdev name in the header itself.
5146 	 */
5147 	if (!(cb->cb_flags & IOS_ANYHISTO_M)) {
5148 		if (cb->cb_scripted) {
5149 			printf("%s", name);
5150 		} else {
5151 			if (strlen(name) + depth > cb->cb_namewidth)
5152 				(void) printf("%*s%s", depth, "", name);
5153 			else
5154 				(void) printf("%*s%s%*s", depth, "", name,
5155 				    (int)(cb->cb_namewidth - strlen(name) -
5156 				    depth), "");
5157 		}
5158 	}
5159 
5160 	/* Calculate our scaling factor */
5161 	tdelta = newvs->vs_timestamp - oldvs->vs_timestamp;
5162 	if ((oldvs->vs_timestamp == 0) && (cb->cb_flags & IOS_ANYHISTO_M)) {
5163 		/*
5164 		 * If we specify printing histograms with no time interval, then
5165 		 * print the histogram numbers over the entire lifetime of the
5166 		 * vdev.
5167 		 */
5168 		scale = 1;
5169 	} else {
5170 		if (tdelta == 0)
5171 			scale = 1.0;
5172 		else
5173 			scale = (double)NANOSEC / tdelta;
5174 	}
5175 
5176 	if (cb->cb_flags & IOS_DEFAULT_M) {
5177 		calc_default_iostats(oldvs, newvs, calcvs);
5178 		print_iostat_default(calcvs, cb, scale);
5179 	}
5180 	if (cb->cb_flags & IOS_LATENCY_M)
5181 		print_iostat_latency(cb, oldnv, newnv);
5182 	if (cb->cb_flags & IOS_QUEUES_M)
5183 		print_iostat_queues(cb, newnv);
5184 	if (cb->cb_flags & IOS_ANYHISTO_M) {
5185 		printf("\n");
5186 		print_iostat_histos(cb, oldnv, newnv, scale, name);
5187 	}
5188 
5189 	if (cb->vcdl != NULL) {
5190 		const char *path;
5191 		if (nvlist_lookup_string(newnv, ZPOOL_CONFIG_PATH,
5192 		    &path) == 0) {
5193 			printf("  ");
5194 			zpool_print_cmd(cb->vcdl, zpool_get_name(zhp), path);
5195 		}
5196 	}
5197 
5198 	if (!(cb->cb_flags & IOS_ANYHISTO_M))
5199 		printf("\n");
5200 
5201 	ret++;
5202 
5203 children:
5204 
5205 	free(calcvs);
5206 
5207 	if (!cb->cb_verbose)
5208 		return (ret);
5209 
5210 	if (nvlist_lookup_nvlist_array(newnv, ZPOOL_CONFIG_CHILDREN,
5211 	    &newchild, &children) != 0)
5212 		return (ret);
5213 
5214 	if (oldnv) {
5215 		if (nvlist_lookup_nvlist_array(oldnv, ZPOOL_CONFIG_CHILDREN,
5216 		    &oldchild, &oldchildren) != 0)
5217 			return (ret);
5218 
5219 		children = MIN(oldchildren, children);
5220 	}
5221 
5222 	/*
5223 	 * print normal top-level devices
5224 	 */
5225 	for (c = 0; c < children; c++) {
5226 		uint64_t ishole = B_FALSE, islog = B_FALSE;
5227 
5228 		(void) nvlist_lookup_uint64(newchild[c], ZPOOL_CONFIG_IS_HOLE,
5229 		    &ishole);
5230 
5231 		(void) nvlist_lookup_uint64(newchild[c], ZPOOL_CONFIG_IS_LOG,
5232 		    &islog);
5233 
5234 		if (ishole || islog)
5235 			continue;
5236 
5237 		if (nvlist_exists(newchild[c], ZPOOL_CONFIG_ALLOCATION_BIAS))
5238 			continue;
5239 
5240 		vname = zpool_vdev_name(g_zfs, zhp, newchild[c],
5241 		    cb->cb_vdevs.cb_name_flags | VDEV_NAME_TYPE_ID);
5242 		ret += print_vdev_stats(zhp, vname, oldnv ? oldchild[c] : NULL,
5243 		    newchild[c], cb, depth + 2);
5244 		free(vname);
5245 	}
5246 
5247 	/*
5248 	 * print all other top-level devices
5249 	 */
5250 	for (uint_t n = 0; n < ARRAY_SIZE(class_name); n++) {
5251 		boolean_t printed = B_FALSE;
5252 
5253 		for (c = 0; c < children; c++) {
5254 			uint64_t islog = B_FALSE;
5255 			const char *bias = NULL;
5256 			const char *type = NULL;
5257 
5258 			(void) nvlist_lookup_uint64(newchild[c],
5259 			    ZPOOL_CONFIG_IS_LOG, &islog);
5260 			if (islog) {
5261 				bias = VDEV_ALLOC_CLASS_LOGS;
5262 			} else {
5263 				(void) nvlist_lookup_string(newchild[c],
5264 				    ZPOOL_CONFIG_ALLOCATION_BIAS, &bias);
5265 				(void) nvlist_lookup_string(newchild[c],
5266 				    ZPOOL_CONFIG_TYPE, &type);
5267 			}
5268 			if (bias == NULL || strcmp(bias, class_name[n]) != 0)
5269 				continue;
5270 			if (!islog && strcmp(type, VDEV_TYPE_INDIRECT) == 0)
5271 				continue;
5272 
5273 			if (!printed) {
5274 				if ((!(cb->cb_flags & IOS_ANYHISTO_M)) &&
5275 				    !cb->cb_scripted &&
5276 				    !cb->cb_vdevs.cb_names) {
5277 					print_iostat_dashes(cb, 0,
5278 					    class_name[n]);
5279 				}
5280 				printf("\n");
5281 				printed = B_TRUE;
5282 			}
5283 
5284 			vname = zpool_vdev_name(g_zfs, zhp, newchild[c],
5285 			    cb->cb_vdevs.cb_name_flags | VDEV_NAME_TYPE_ID);
5286 			ret += print_vdev_stats(zhp, vname, oldnv ?
5287 			    oldchild[c] : NULL, newchild[c], cb, depth + 2);
5288 			free(vname);
5289 		}
5290 	}
5291 
5292 	/*
5293 	 * Include level 2 ARC devices in iostat output
5294 	 */
5295 	if (nvlist_lookup_nvlist_array(newnv, ZPOOL_CONFIG_L2CACHE,
5296 	    &newchild, &children) != 0)
5297 		return (ret);
5298 
5299 	if (oldnv) {
5300 		if (nvlist_lookup_nvlist_array(oldnv, ZPOOL_CONFIG_L2CACHE,
5301 		    &oldchild, &oldchildren) != 0)
5302 			return (ret);
5303 
5304 		children = MIN(oldchildren, children);
5305 	}
5306 
5307 	if (children > 0) {
5308 		if ((!(cb->cb_flags & IOS_ANYHISTO_M)) && !cb->cb_scripted &&
5309 		    !cb->cb_vdevs.cb_names) {
5310 			print_iostat_dashes(cb, 0, "cache");
5311 		}
5312 		printf("\n");
5313 
5314 		for (c = 0; c < children; c++) {
5315 			vname = zpool_vdev_name(g_zfs, zhp, newchild[c],
5316 			    cb->cb_vdevs.cb_name_flags);
5317 			ret += print_vdev_stats(zhp, vname, oldnv ? oldchild[c]
5318 			    : NULL, newchild[c], cb, depth + 2);
5319 			free(vname);
5320 		}
5321 	}
5322 
5323 	return (ret);
5324 }
5325 
5326 static int
5327 refresh_iostat(zpool_handle_t *zhp, void *data)
5328 {
5329 	iostat_cbdata_t *cb = data;
5330 	boolean_t missing;
5331 
5332 	/*
5333 	 * If the pool has disappeared, remove it from the list and continue.
5334 	 */
5335 	if (zpool_refresh_stats(zhp, &missing) != 0)
5336 		return (-1);
5337 
5338 	if (missing)
5339 		pool_list_remove(cb->cb_list, zhp);
5340 
5341 	return (0);
5342 }
5343 
5344 /*
5345  * Callback to print out the iostats for the given pool.
5346  */
5347 static int
5348 print_iostat(zpool_handle_t *zhp, void *data)
5349 {
5350 	iostat_cbdata_t *cb = data;
5351 	nvlist_t *oldconfig, *newconfig;
5352 	nvlist_t *oldnvroot, *newnvroot;
5353 	int ret;
5354 
5355 	newconfig = zpool_get_config(zhp, &oldconfig);
5356 
5357 	if (cb->cb_iteration == 1)
5358 		oldconfig = NULL;
5359 
5360 	verify(nvlist_lookup_nvlist(newconfig, ZPOOL_CONFIG_VDEV_TREE,
5361 	    &newnvroot) == 0);
5362 
5363 	if (oldconfig == NULL)
5364 		oldnvroot = NULL;
5365 	else
5366 		verify(nvlist_lookup_nvlist(oldconfig, ZPOOL_CONFIG_VDEV_TREE,
5367 		    &oldnvroot) == 0);
5368 
5369 	ret = print_vdev_stats(zhp, zpool_get_name(zhp), oldnvroot, newnvroot,
5370 	    cb, 0);
5371 	if ((ret != 0) && !(cb->cb_flags & IOS_ANYHISTO_M) &&
5372 	    !cb->cb_scripted && cb->cb_verbose &&
5373 	    !cb->cb_vdevs.cb_names_count) {
5374 		print_iostat_separator(cb);
5375 		if (cb->vcdl != NULL) {
5376 			print_cmd_columns(cb->vcdl, 1);
5377 		}
5378 		printf("\n");
5379 	}
5380 
5381 	return (ret);
5382 }
5383 
5384 static int
5385 get_columns(void)
5386 {
5387 	struct winsize ws;
5388 	int columns = 80;
5389 	int error;
5390 
5391 	if (isatty(STDOUT_FILENO)) {
5392 		error = ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws);
5393 		if (error == 0)
5394 			columns = ws.ws_col;
5395 	} else {
5396 		columns = 999;
5397 	}
5398 
5399 	return (columns);
5400 }
5401 
5402 /*
5403  * Return the required length of the pool/vdev name column.  The minimum
5404  * allowed width and output formatting flags must be provided.
5405  */
5406 static int
5407 get_namewidth(zpool_handle_t *zhp, int min_width, int flags, boolean_t verbose)
5408 {
5409 	nvlist_t *config, *nvroot;
5410 	int width = min_width;
5411 
5412 	if ((config = zpool_get_config(zhp, NULL)) != NULL) {
5413 		verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
5414 		    &nvroot) == 0);
5415 		size_t poolname_len = strlen(zpool_get_name(zhp));
5416 		if (verbose == B_FALSE) {
5417 			width = MAX(poolname_len, min_width);
5418 		} else {
5419 			width = MAX(poolname_len,
5420 			    max_width(zhp, nvroot, 0, min_width, flags));
5421 		}
5422 	}
5423 
5424 	return (width);
5425 }
5426 
5427 /*
5428  * Parse the input string, get the 'interval' and 'count' value if there is one.
5429  */
5430 static void
5431 get_interval_count(int *argcp, char **argv, float *iv,
5432     unsigned long *cnt)
5433 {
5434 	float interval = 0;
5435 	unsigned long count = 0;
5436 	int argc = *argcp;
5437 
5438 	/*
5439 	 * Determine if the last argument is an integer or a pool name
5440 	 */
5441 	if (argc > 0 && zfs_isnumber(argv[argc - 1])) {
5442 		char *end;
5443 
5444 		errno = 0;
5445 		interval = strtof(argv[argc - 1], &end);
5446 
5447 		if (*end == '\0' && errno == 0) {
5448 			if (interval == 0) {
5449 				(void) fprintf(stderr, gettext(
5450 				    "interval cannot be zero\n"));
5451 				usage(B_FALSE);
5452 			}
5453 			/*
5454 			 * Ignore the last parameter
5455 			 */
5456 			argc--;
5457 		} else {
5458 			/*
5459 			 * If this is not a valid number, just plow on.  The
5460 			 * user will get a more informative error message later
5461 			 * on.
5462 			 */
5463 			interval = 0;
5464 		}
5465 	}
5466 
5467 	/*
5468 	 * If the last argument is also an integer, then we have both a count
5469 	 * and an interval.
5470 	 */
5471 	if (argc > 0 && zfs_isnumber(argv[argc - 1])) {
5472 		char *end;
5473 
5474 		errno = 0;
5475 		count = interval;
5476 		interval = strtof(argv[argc - 1], &end);
5477 
5478 		if (*end == '\0' && errno == 0) {
5479 			if (interval == 0) {
5480 				(void) fprintf(stderr, gettext(
5481 				    "interval cannot be zero\n"));
5482 				usage(B_FALSE);
5483 			}
5484 
5485 			/*
5486 			 * Ignore the last parameter
5487 			 */
5488 			argc--;
5489 		} else {
5490 			interval = 0;
5491 		}
5492 	}
5493 
5494 	*iv = interval;
5495 	*cnt = count;
5496 	*argcp = argc;
5497 }
5498 
5499 static void
5500 get_timestamp_arg(char c)
5501 {
5502 	if (c == 'u')
5503 		timestamp_fmt = UDATE;
5504 	else if (c == 'd')
5505 		timestamp_fmt = DDATE;
5506 	else
5507 		usage(B_FALSE);
5508 }
5509 
5510 /*
5511  * Return stat flags that are supported by all pools by both the module and
5512  * zpool iostat.  "*data" should be initialized to all 0xFFs before running.
5513  * It will get ANDed down until only the flags that are supported on all pools
5514  * remain.
5515  */
5516 static int
5517 get_stat_flags_cb(zpool_handle_t *zhp, void *data)
5518 {
5519 	uint64_t *mask = data;
5520 	nvlist_t *config, *nvroot, *nvx;
5521 	uint64_t flags = 0;
5522 	int i, j;
5523 
5524 	config = zpool_get_config(zhp, NULL);
5525 	verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
5526 	    &nvroot) == 0);
5527 
5528 	/* Default stats are always supported, but for completeness.. */
5529 	if (nvlist_exists(nvroot, ZPOOL_CONFIG_VDEV_STATS))
5530 		flags |= IOS_DEFAULT_M;
5531 
5532 	/* Get our extended stats nvlist from the main list */
5533 	if (nvlist_lookup_nvlist(nvroot, ZPOOL_CONFIG_VDEV_STATS_EX,
5534 	    &nvx) != 0) {
5535 		/*
5536 		 * No extended stats; they're probably running an older
5537 		 * module.  No big deal, we support that too.
5538 		 */
5539 		goto end;
5540 	}
5541 
5542 	/* For each extended stat, make sure all its nvpairs are supported */
5543 	for (j = 0; j < ARRAY_SIZE(vsx_type_to_nvlist); j++) {
5544 		if (!vsx_type_to_nvlist[j][0])
5545 			continue;
5546 
5547 		/* Start off by assuming the flag is supported, then check */
5548 		flags |= (1ULL << j);
5549 		for (i = 0; vsx_type_to_nvlist[j][i]; i++) {
5550 			if (!nvlist_exists(nvx, vsx_type_to_nvlist[j][i])) {
5551 				/* flag isn't supported */
5552 				flags = flags & ~(1ULL  << j);
5553 				break;
5554 			}
5555 		}
5556 	}
5557 end:
5558 	*mask = *mask & flags;
5559 	return (0);
5560 }
5561 
5562 /*
5563  * Return a bitmask of stats that are supported on all pools by both the module
5564  * and zpool iostat.
5565  */
5566 static uint64_t
5567 get_stat_flags(zpool_list_t *list)
5568 {
5569 	uint64_t mask = -1;
5570 
5571 	/*
5572 	 * get_stat_flags_cb() will lop off bits from "mask" until only the
5573 	 * flags that are supported on all pools remain.
5574 	 */
5575 	pool_list_iter(list, B_FALSE, get_stat_flags_cb, &mask);
5576 	return (mask);
5577 }
5578 
5579 /*
5580  * Return 1 if cb_data->cb_names[0] is this vdev's name, 0 otherwise.
5581  */
5582 static int
5583 is_vdev_cb(void *zhp_data, nvlist_t *nv, void *cb_data)
5584 {
5585 	uint64_t guid;
5586 	vdev_cbdata_t *cb = cb_data;
5587 	zpool_handle_t *zhp = zhp_data;
5588 
5589 	if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_GUID, &guid) != 0)
5590 		return (0);
5591 
5592 	return (guid == zpool_vdev_path_to_guid(zhp, cb->cb_names[0]));
5593 }
5594 
5595 /*
5596  * Returns 1 if cb_data->cb_names[0] is a vdev name, 0 otherwise.
5597  */
5598 static int
5599 is_vdev(zpool_handle_t *zhp, void *cb_data)
5600 {
5601 	return (for_each_vdev(zhp, is_vdev_cb, cb_data));
5602 }
5603 
5604 /*
5605  * Check if vdevs are in a pool
5606  *
5607  * Return 1 if all argv[] strings are vdev names in pool "pool_name". Otherwise
5608  * return 0.  If pool_name is NULL, then search all pools.
5609  */
5610 static int
5611 are_vdevs_in_pool(int argc, char **argv, char *pool_name,
5612     vdev_cbdata_t *cb)
5613 {
5614 	char **tmp_name;
5615 	int ret = 0;
5616 	int i;
5617 	int pool_count = 0;
5618 
5619 	if ((argc == 0) || !*argv)
5620 		return (0);
5621 
5622 	if (pool_name)
5623 		pool_count = 1;
5624 
5625 	/* Temporarily hijack cb_names for a second... */
5626 	tmp_name = cb->cb_names;
5627 
5628 	/* Go though our list of prospective vdev names */
5629 	for (i = 0; i < argc; i++) {
5630 		cb->cb_names = argv + i;
5631 
5632 		/* Is this name a vdev in our pools? */
5633 		ret = for_each_pool(pool_count, &pool_name, B_TRUE, NULL,
5634 		    ZFS_TYPE_POOL, B_FALSE, is_vdev, cb);
5635 		if (!ret) {
5636 			/* No match */
5637 			break;
5638 		}
5639 	}
5640 
5641 	cb->cb_names = tmp_name;
5642 
5643 	return (ret);
5644 }
5645 
5646 static int
5647 is_pool_cb(zpool_handle_t *zhp, void *data)
5648 {
5649 	char *name = data;
5650 	if (strcmp(name, zpool_get_name(zhp)) == 0)
5651 		return (1);
5652 
5653 	return (0);
5654 }
5655 
5656 /*
5657  * Do we have a pool named *name?  If so, return 1, otherwise 0.
5658  */
5659 static int
5660 is_pool(char *name)
5661 {
5662 	return (for_each_pool(0, NULL, B_TRUE, NULL, ZFS_TYPE_POOL, B_FALSE,
5663 	    is_pool_cb, name));
5664 }
5665 
5666 /* Are all our argv[] strings pool names?  If so return 1, 0 otherwise. */
5667 static int
5668 are_all_pools(int argc, char **argv)
5669 {
5670 	if ((argc == 0) || !*argv)
5671 		return (0);
5672 
5673 	while (--argc >= 0)
5674 		if (!is_pool(argv[argc]))
5675 			return (0);
5676 
5677 	return (1);
5678 }
5679 
5680 /*
5681  * Helper function to print out vdev/pool names we can't resolve.  Used for an
5682  * error message.
5683  */
5684 static void
5685 error_list_unresolved_vdevs(int argc, char **argv, char *pool_name,
5686     vdev_cbdata_t *cb)
5687 {
5688 	int i;
5689 	char *name;
5690 	char *str;
5691 	for (i = 0; i < argc; i++) {
5692 		name = argv[i];
5693 
5694 		if (is_pool(name))
5695 			str = gettext("pool");
5696 		else if (are_vdevs_in_pool(1, &name, pool_name, cb))
5697 			str = gettext("vdev in this pool");
5698 		else if (are_vdevs_in_pool(1, &name, NULL, cb))
5699 			str = gettext("vdev in another pool");
5700 		else
5701 			str = gettext("unknown");
5702 
5703 		fprintf(stderr, "\t%s (%s)\n", name, str);
5704 	}
5705 }
5706 
5707 /*
5708  * Same as get_interval_count(), but with additional checks to not misinterpret
5709  * guids as interval/count values.  Assumes VDEV_NAME_GUID is set in
5710  * cb.cb_vdevs.cb_name_flags.
5711  */
5712 static void
5713 get_interval_count_filter_guids(int *argc, char **argv, float *interval,
5714     unsigned long *count, iostat_cbdata_t *cb)
5715 {
5716 	char **tmpargv = argv;
5717 	int argc_for_interval = 0;
5718 
5719 	/* Is the last arg an interval value?  Or a guid? */
5720 	if (*argc >= 1 && !are_vdevs_in_pool(1, &argv[*argc - 1], NULL,
5721 	    &cb->cb_vdevs)) {
5722 		/*
5723 		 * The last arg is not a guid, so it's probably an
5724 		 * interval value.
5725 		 */
5726 		argc_for_interval++;
5727 
5728 		if (*argc >= 2 &&
5729 		    !are_vdevs_in_pool(1, &argv[*argc - 2], NULL,
5730 		    &cb->cb_vdevs)) {
5731 			/*
5732 			 * The 2nd to last arg is not a guid, so it's probably
5733 			 * an interval value.
5734 			 */
5735 			argc_for_interval++;
5736 		}
5737 	}
5738 
5739 	/* Point to our list of possible intervals */
5740 	tmpargv = &argv[*argc - argc_for_interval];
5741 
5742 	*argc = *argc - argc_for_interval;
5743 	get_interval_count(&argc_for_interval, tmpargv,
5744 	    interval, count);
5745 }
5746 
5747 /*
5748  * Terminal height, in rows. Returns -1 if stdout is not connected to a TTY or
5749  * if we were unable to determine its size.
5750  */
5751 static int
5752 terminal_height(void)
5753 {
5754 	struct winsize win;
5755 
5756 	if (isatty(STDOUT_FILENO) == 0)
5757 		return (-1);
5758 
5759 	if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &win) != -1 && win.ws_row > 0)
5760 		return (win.ws_row);
5761 
5762 	return (-1);
5763 }
5764 
5765 /*
5766  * Run one of the zpool status/iostat -c scripts with the help (-h) option and
5767  * print the result.
5768  *
5769  * name:	Short name of the script ('iostat').
5770  * path:	Full path to the script ('/usr/local/etc/zfs/zpool.d/iostat');
5771  */
5772 static void
5773 print_zpool_script_help(char *name, char *path)
5774 {
5775 	char *argv[] = {path, (char *)"-h", NULL};
5776 	char **lines = NULL;
5777 	int lines_cnt = 0;
5778 	int rc;
5779 
5780 	rc = libzfs_run_process_get_stdout_nopath(path, argv, NULL, &lines,
5781 	    &lines_cnt);
5782 	if (rc != 0 || lines == NULL || lines_cnt <= 0) {
5783 		if (lines != NULL)
5784 			libzfs_free_str_array(lines, lines_cnt);
5785 		return;
5786 	}
5787 
5788 	for (int i = 0; i < lines_cnt; i++)
5789 		if (!is_blank_str(lines[i]))
5790 			printf("  %-14s  %s\n", name, lines[i]);
5791 
5792 	libzfs_free_str_array(lines, lines_cnt);
5793 }
5794 
5795 /*
5796  * Go though the zpool status/iostat -c scripts in the user's path, run their
5797  * help option (-h), and print out the results.
5798  */
5799 static void
5800 print_zpool_dir_scripts(char *dirpath)
5801 {
5802 	DIR *dir;
5803 	struct dirent *ent;
5804 	char fullpath[MAXPATHLEN];
5805 	struct stat dir_stat;
5806 
5807 	if ((dir = opendir(dirpath)) != NULL) {
5808 		/* print all the files and directories within directory */
5809 		while ((ent = readdir(dir)) != NULL) {
5810 			if (snprintf(fullpath, sizeof (fullpath), "%s/%s",
5811 			    dirpath, ent->d_name) >= sizeof (fullpath)) {
5812 				(void) fprintf(stderr,
5813 				    gettext("internal error: "
5814 				    "ZPOOL_SCRIPTS_PATH too large.\n"));
5815 				exit(1);
5816 			}
5817 
5818 			/* Print the scripts */
5819 			if (stat(fullpath, &dir_stat) == 0)
5820 				if (dir_stat.st_mode & S_IXUSR &&
5821 				    S_ISREG(dir_stat.st_mode))
5822 					print_zpool_script_help(ent->d_name,
5823 					    fullpath);
5824 		}
5825 		closedir(dir);
5826 	}
5827 }
5828 
5829 /*
5830  * Print out help text for all zpool status/iostat -c scripts.
5831  */
5832 static void
5833 print_zpool_script_list(const char *subcommand)
5834 {
5835 	char *dir, *sp, *tmp;
5836 
5837 	printf(gettext("Available 'zpool %s -c' commands:\n"), subcommand);
5838 
5839 	sp = zpool_get_cmd_search_path();
5840 	if (sp == NULL)
5841 		return;
5842 
5843 	for (dir = strtok_r(sp, ":", &tmp);
5844 	    dir != NULL;
5845 	    dir = strtok_r(NULL, ":", &tmp))
5846 		print_zpool_dir_scripts(dir);
5847 
5848 	free(sp);
5849 }
5850 
5851 /*
5852  * Set the minimum pool/vdev name column width.  The width must be at least 10,
5853  * but may be as large as the column width - 42 so it still fits on one line.
5854  * NOTE: 42 is the width of the default capacity/operations/bandwidth output
5855  */
5856 static int
5857 get_namewidth_iostat(zpool_handle_t *zhp, void *data)
5858 {
5859 	iostat_cbdata_t *cb = data;
5860 	int width, available_width;
5861 
5862 	/*
5863 	 * get_namewidth() returns the maximum width of any name in that column
5864 	 * for any pool/vdev/device line that will be output.
5865 	 */
5866 	width = get_namewidth(zhp, cb->cb_namewidth,
5867 	    cb->cb_vdevs.cb_name_flags | VDEV_NAME_TYPE_ID, cb->cb_verbose);
5868 
5869 	/*
5870 	 * The width we are calculating is the width of the header and also the
5871 	 * padding width for names that are less than maximum width.  The stats
5872 	 * take up 42 characters, so the width available for names is:
5873 	 */
5874 	available_width = get_columns() - 42;
5875 
5876 	/*
5877 	 * If the maximum width fits on a screen, then great!  Make everything
5878 	 * line up by justifying all lines to the same width.  If that max
5879 	 * width is larger than what's available, the name plus stats won't fit
5880 	 * on one line, and justifying to that width would cause every line to
5881 	 * wrap on the screen.  We only want lines with long names to wrap.
5882 	 * Limit the padding to what won't wrap.
5883 	 */
5884 	if (width > available_width)
5885 		width = available_width;
5886 
5887 	/*
5888 	 * And regardless of whatever the screen width is (get_columns can
5889 	 * return 0 if the width is not known or less than 42 for a narrow
5890 	 * terminal) have the width be a minimum of 10.
5891 	 */
5892 	if (width < 10)
5893 		width = 10;
5894 
5895 	/* Save the calculated width */
5896 	cb->cb_namewidth = width;
5897 
5898 	return (0);
5899 }
5900 
5901 /*
5902  * zpool iostat [[-c [script1,script2,...]] [-lq]|[-rw]] [-ghHLpPvy] [-n name]
5903  *              [-T d|u] [[ pool ...]|[pool vdev ...]|[vdev ...]]
5904  *              [interval [count]]
5905  *
5906  *	-c CMD  For each vdev, run command CMD
5907  *	-g	Display guid for individual vdev name.
5908  *	-L	Follow links when resolving vdev path name.
5909  *	-P	Display full path for vdev name.
5910  *	-v	Display statistics for individual vdevs
5911  *	-h	Display help
5912  *	-p	Display values in parsable (exact) format.
5913  *	-H	Scripted mode.  Don't display headers, and separate properties
5914  *		by a single tab.
5915  *	-l	Display average latency
5916  *	-q	Display queue depths
5917  *	-w	Display latency histograms
5918  *	-r	Display request size histogram
5919  *	-T	Display a timestamp in date(1) or Unix format
5920  *	-n	Only print headers once
5921  *
5922  * This command can be tricky because we want to be able to deal with pool
5923  * creation/destruction as well as vdev configuration changes.  The bulk of this
5924  * processing is handled by the pool_list_* routines in zpool_iter.c.  We rely
5925  * on pool_list_update() to detect the addition of new pools.  Configuration
5926  * changes are all handled within libzfs.
5927  */
5928 int
5929 zpool_do_iostat(int argc, char **argv)
5930 {
5931 	int c;
5932 	int ret;
5933 	int npools;
5934 	float interval = 0;
5935 	unsigned long count = 0;
5936 	int winheight = 24;
5937 	zpool_list_t *list;
5938 	boolean_t verbose = B_FALSE;
5939 	boolean_t latency = B_FALSE, l_histo = B_FALSE, rq_histo = B_FALSE;
5940 	boolean_t queues = B_FALSE, parsable = B_FALSE, scripted = B_FALSE;
5941 	boolean_t omit_since_boot = B_FALSE;
5942 	boolean_t guid = B_FALSE;
5943 	boolean_t follow_links = B_FALSE;
5944 	boolean_t full_name = B_FALSE;
5945 	boolean_t headers_once = B_FALSE;
5946 	iostat_cbdata_t cb = { 0 };
5947 	char *cmd = NULL;
5948 
5949 	/* Used for printing error message */
5950 	const char flag_to_arg[] = {[IOS_LATENCY] = 'l', [IOS_QUEUES] = 'q',
5951 	    [IOS_L_HISTO] = 'w', [IOS_RQ_HISTO] = 'r'};
5952 
5953 	uint64_t unsupported_flags;
5954 
5955 	/* check options */
5956 	while ((c = getopt(argc, argv, "c:gLPT:vyhplqrwnH")) != -1) {
5957 		switch (c) {
5958 		case 'c':
5959 			if (cmd != NULL) {
5960 				fprintf(stderr,
5961 				    gettext("Can't set -c flag twice\n"));
5962 				exit(1);
5963 			}
5964 
5965 			if (getenv("ZPOOL_SCRIPTS_ENABLED") != NULL &&
5966 			    !libzfs_envvar_is_set("ZPOOL_SCRIPTS_ENABLED")) {
5967 				fprintf(stderr, gettext(
5968 				    "Can't run -c, disabled by "
5969 				    "ZPOOL_SCRIPTS_ENABLED.\n"));
5970 				exit(1);
5971 			}
5972 
5973 			if ((getuid() <= 0 || geteuid() <= 0) &&
5974 			    !libzfs_envvar_is_set("ZPOOL_SCRIPTS_AS_ROOT")) {
5975 				fprintf(stderr, gettext(
5976 				    "Can't run -c with root privileges "
5977 				    "unless ZPOOL_SCRIPTS_AS_ROOT is set.\n"));
5978 				exit(1);
5979 			}
5980 			cmd = optarg;
5981 			verbose = B_TRUE;
5982 			break;
5983 		case 'g':
5984 			guid = B_TRUE;
5985 			break;
5986 		case 'L':
5987 			follow_links = B_TRUE;
5988 			break;
5989 		case 'P':
5990 			full_name = B_TRUE;
5991 			break;
5992 		case 'T':
5993 			get_timestamp_arg(*optarg);
5994 			break;
5995 		case 'v':
5996 			verbose = B_TRUE;
5997 			break;
5998 		case 'p':
5999 			parsable = B_TRUE;
6000 			break;
6001 		case 'l':
6002 			latency = B_TRUE;
6003 			break;
6004 		case 'q':
6005 			queues = B_TRUE;
6006 			break;
6007 		case 'H':
6008 			scripted = B_TRUE;
6009 			break;
6010 		case 'w':
6011 			l_histo = B_TRUE;
6012 			break;
6013 		case 'r':
6014 			rq_histo = B_TRUE;
6015 			break;
6016 		case 'y':
6017 			omit_since_boot = B_TRUE;
6018 			break;
6019 		case 'n':
6020 			headers_once = B_TRUE;
6021 			break;
6022 		case 'h':
6023 			usage(B_FALSE);
6024 			break;
6025 		case '?':
6026 			if (optopt == 'c') {
6027 				print_zpool_script_list("iostat");
6028 				exit(0);
6029 			} else {
6030 				fprintf(stderr,
6031 				    gettext("invalid option '%c'\n"), optopt);
6032 			}
6033 			usage(B_FALSE);
6034 		}
6035 	}
6036 
6037 	argc -= optind;
6038 	argv += optind;
6039 
6040 	cb.cb_literal = parsable;
6041 	cb.cb_scripted = scripted;
6042 
6043 	if (guid)
6044 		cb.cb_vdevs.cb_name_flags |= VDEV_NAME_GUID;
6045 	if (follow_links)
6046 		cb.cb_vdevs.cb_name_flags |= VDEV_NAME_FOLLOW_LINKS;
6047 	if (full_name)
6048 		cb.cb_vdevs.cb_name_flags |= VDEV_NAME_PATH;
6049 	cb.cb_iteration = 0;
6050 	cb.cb_namewidth = 0;
6051 	cb.cb_verbose = verbose;
6052 
6053 	/* Get our interval and count values (if any) */
6054 	if (guid) {
6055 		get_interval_count_filter_guids(&argc, argv, &interval,
6056 		    &count, &cb);
6057 	} else {
6058 		get_interval_count(&argc, argv, &interval, &count);
6059 	}
6060 
6061 	if (argc == 0) {
6062 		/* No args, so just print the defaults. */
6063 	} else if (are_all_pools(argc, argv)) {
6064 		/* All the args are pool names */
6065 	} else if (are_vdevs_in_pool(argc, argv, NULL, &cb.cb_vdevs)) {
6066 		/* All the args are vdevs */
6067 		cb.cb_vdevs.cb_names = argv;
6068 		cb.cb_vdevs.cb_names_count = argc;
6069 		argc = 0; /* No pools to process */
6070 	} else if (are_all_pools(1, argv)) {
6071 		/* The first arg is a pool name */
6072 		if (are_vdevs_in_pool(argc - 1, argv + 1, argv[0],
6073 		    &cb.cb_vdevs)) {
6074 			/* ...and the rest are vdev names */
6075 			cb.cb_vdevs.cb_names = argv + 1;
6076 			cb.cb_vdevs.cb_names_count = argc - 1;
6077 			argc = 1; /* One pool to process */
6078 		} else {
6079 			fprintf(stderr, gettext("Expected either a list of "));
6080 			fprintf(stderr, gettext("pools, or list of vdevs in"));
6081 			fprintf(stderr, " \"%s\", ", argv[0]);
6082 			fprintf(stderr, gettext("but got:\n"));
6083 			error_list_unresolved_vdevs(argc - 1, argv + 1,
6084 			    argv[0], &cb.cb_vdevs);
6085 			fprintf(stderr, "\n");
6086 			usage(B_FALSE);
6087 			return (1);
6088 		}
6089 	} else {
6090 		/*
6091 		 * The args don't make sense. The first arg isn't a pool name,
6092 		 * nor are all the args vdevs.
6093 		 */
6094 		fprintf(stderr, gettext("Unable to parse pools/vdevs list.\n"));
6095 		fprintf(stderr, "\n");
6096 		return (1);
6097 	}
6098 
6099 	if (cb.cb_vdevs.cb_names_count != 0) {
6100 		/*
6101 		 * If user specified vdevs, it implies verbose.
6102 		 */
6103 		cb.cb_verbose = B_TRUE;
6104 	}
6105 
6106 	/*
6107 	 * Construct the list of all interesting pools.
6108 	 */
6109 	ret = 0;
6110 	if ((list = pool_list_get(argc, argv, NULL, ZFS_TYPE_POOL, parsable,
6111 	    &ret)) == NULL)
6112 		return (1);
6113 
6114 	if (pool_list_count(list) == 0 && argc != 0) {
6115 		pool_list_free(list);
6116 		return (1);
6117 	}
6118 
6119 	if (pool_list_count(list) == 0 && interval == 0) {
6120 		pool_list_free(list);
6121 		(void) fprintf(stderr, gettext("no pools available\n"));
6122 		return (1);
6123 	}
6124 
6125 	if ((l_histo || rq_histo) && (cmd != NULL || latency || queues)) {
6126 		pool_list_free(list);
6127 		(void) fprintf(stderr,
6128 		    gettext("[-r|-w] isn't allowed with [-c|-l|-q]\n"));
6129 		usage(B_FALSE);
6130 		return (1);
6131 	}
6132 
6133 	if (l_histo && rq_histo) {
6134 		pool_list_free(list);
6135 		(void) fprintf(stderr,
6136 		    gettext("Only one of [-r|-w] can be passed at a time\n"));
6137 		usage(B_FALSE);
6138 		return (1);
6139 	}
6140 
6141 	/*
6142 	 * Enter the main iostat loop.
6143 	 */
6144 	cb.cb_list = list;
6145 
6146 	if (l_histo) {
6147 		/*
6148 		 * Histograms tables look out of place when you try to display
6149 		 * them with the other stats, so make a rule that you can only
6150 		 * print histograms by themselves.
6151 		 */
6152 		cb.cb_flags = IOS_L_HISTO_M;
6153 	} else if (rq_histo) {
6154 		cb.cb_flags = IOS_RQ_HISTO_M;
6155 	} else {
6156 		cb.cb_flags = IOS_DEFAULT_M;
6157 		if (latency)
6158 			cb.cb_flags |= IOS_LATENCY_M;
6159 		if (queues)
6160 			cb.cb_flags |= IOS_QUEUES_M;
6161 	}
6162 
6163 	/*
6164 	 * See if the module supports all the stats we want to display.
6165 	 */
6166 	unsupported_flags = cb.cb_flags & ~get_stat_flags(list);
6167 	if (unsupported_flags) {
6168 		uint64_t f;
6169 		int idx;
6170 		fprintf(stderr,
6171 		    gettext("The loaded zfs module doesn't support:"));
6172 
6173 		/* for each bit set in unsupported_flags */
6174 		for (f = unsupported_flags; f; f &= ~(1ULL << idx)) {
6175 			idx = lowbit64(f) - 1;
6176 			fprintf(stderr, " -%c", flag_to_arg[idx]);
6177 		}
6178 
6179 		fprintf(stderr, ".  Try running a newer module.\n");
6180 		pool_list_free(list);
6181 
6182 		return (1);
6183 	}
6184 
6185 	for (;;) {
6186 		if ((npools = pool_list_count(list)) == 0)
6187 			(void) fprintf(stderr, gettext("no pools available\n"));
6188 		else {
6189 			/*
6190 			 * If this is the first iteration and -y was supplied
6191 			 * we skip any printing.
6192 			 */
6193 			boolean_t skip = (omit_since_boot &&
6194 			    cb.cb_iteration == 0);
6195 
6196 			/*
6197 			 * Refresh all statistics.  This is done as an
6198 			 * explicit step before calculating the maximum name
6199 			 * width, so that any * configuration changes are
6200 			 * properly accounted for.
6201 			 */
6202 			(void) pool_list_iter(list, B_FALSE, refresh_iostat,
6203 			    &cb);
6204 
6205 			/*
6206 			 * Iterate over all pools to determine the maximum width
6207 			 * for the pool / device name column across all pools.
6208 			 */
6209 			cb.cb_namewidth = 0;
6210 			(void) pool_list_iter(list, B_FALSE,
6211 			    get_namewidth_iostat, &cb);
6212 
6213 			if (timestamp_fmt != NODATE)
6214 				print_timestamp(timestamp_fmt);
6215 
6216 			if (cmd != NULL && cb.cb_verbose &&
6217 			    !(cb.cb_flags & IOS_ANYHISTO_M)) {
6218 				cb.vcdl = all_pools_for_each_vdev_run(argc,
6219 				    argv, cmd, g_zfs, cb.cb_vdevs.cb_names,
6220 				    cb.cb_vdevs.cb_names_count,
6221 				    cb.cb_vdevs.cb_name_flags);
6222 			} else {
6223 				cb.vcdl = NULL;
6224 			}
6225 
6226 
6227 			/*
6228 			 * Check terminal size so we can print headers
6229 			 * even when terminal window has its height
6230 			 * changed.
6231 			 */
6232 			winheight = terminal_height();
6233 			/*
6234 			 * Are we connected to TTY? If not, headers_once
6235 			 * should be true, to avoid breaking scripts.
6236 			 */
6237 			if (winheight < 0)
6238 				headers_once = B_TRUE;
6239 
6240 			/*
6241 			 * If it's the first time and we're not skipping it,
6242 			 * or either skip or verbose mode, print the header.
6243 			 *
6244 			 * The histogram code explicitly prints its header on
6245 			 * every vdev, so skip this for histograms.
6246 			 */
6247 			if (((++cb.cb_iteration == 1 && !skip) ||
6248 			    (skip != verbose) ||
6249 			    (!headers_once &&
6250 			    (cb.cb_iteration % winheight) == 0)) &&
6251 			    (!(cb.cb_flags & IOS_ANYHISTO_M)) &&
6252 			    !cb.cb_scripted)
6253 				print_iostat_header(&cb);
6254 
6255 			if (skip) {
6256 				(void) fflush(stdout);
6257 				(void) fsleep(interval);
6258 				continue;
6259 			}
6260 
6261 			pool_list_iter(list, B_FALSE, print_iostat, &cb);
6262 
6263 			/*
6264 			 * If there's more than one pool, and we're not in
6265 			 * verbose mode (which prints a separator for us),
6266 			 * then print a separator.
6267 			 *
6268 			 * In addition, if we're printing specific vdevs then
6269 			 * we also want an ending separator.
6270 			 */
6271 			if (((npools > 1 && !verbose &&
6272 			    !(cb.cb_flags & IOS_ANYHISTO_M)) ||
6273 			    (!(cb.cb_flags & IOS_ANYHISTO_M) &&
6274 			    cb.cb_vdevs.cb_names_count)) &&
6275 			    !cb.cb_scripted) {
6276 				print_iostat_separator(&cb);
6277 				if (cb.vcdl != NULL)
6278 					print_cmd_columns(cb.vcdl, 1);
6279 				printf("\n");
6280 			}
6281 
6282 			if (cb.vcdl != NULL)
6283 				free_vdev_cmd_data_list(cb.vcdl);
6284 
6285 		}
6286 
6287 		if (interval == 0)
6288 			break;
6289 
6290 		if (count != 0 && --count == 0)
6291 			break;
6292 
6293 		(void) fflush(stdout);
6294 		(void) fsleep(interval);
6295 	}
6296 
6297 	pool_list_free(list);
6298 
6299 	return (ret);
6300 }
6301 
6302 typedef struct list_cbdata {
6303 	boolean_t	cb_verbose;
6304 	int		cb_name_flags;
6305 	int		cb_namewidth;
6306 	boolean_t	cb_scripted;
6307 	zprop_list_t	*cb_proplist;
6308 	boolean_t	cb_literal;
6309 } list_cbdata_t;
6310 
6311 
6312 /*
6313  * Given a list of columns to display, output appropriate headers for each one.
6314  */
6315 static void
6316 print_header(list_cbdata_t *cb)
6317 {
6318 	zprop_list_t *pl = cb->cb_proplist;
6319 	char headerbuf[ZPOOL_MAXPROPLEN];
6320 	const char *header;
6321 	boolean_t first = B_TRUE;
6322 	boolean_t right_justify;
6323 	size_t width = 0;
6324 
6325 	for (; pl != NULL; pl = pl->pl_next) {
6326 		width = pl->pl_width;
6327 		if (first && cb->cb_verbose) {
6328 			/*
6329 			 * Reset the width to accommodate the verbose listing
6330 			 * of devices.
6331 			 */
6332 			width = cb->cb_namewidth;
6333 		}
6334 
6335 		if (!first)
6336 			(void) fputs("  ", stdout);
6337 		else
6338 			first = B_FALSE;
6339 
6340 		right_justify = B_FALSE;
6341 		if (pl->pl_prop != ZPROP_USERPROP) {
6342 			header = zpool_prop_column_name(pl->pl_prop);
6343 			right_justify = zpool_prop_align_right(pl->pl_prop);
6344 		} else {
6345 			int i;
6346 
6347 			for (i = 0; pl->pl_user_prop[i] != '\0'; i++)
6348 				headerbuf[i] = toupper(pl->pl_user_prop[i]);
6349 			headerbuf[i] = '\0';
6350 			header = headerbuf;
6351 		}
6352 
6353 		if (pl->pl_next == NULL && !right_justify)
6354 			(void) fputs(header, stdout);
6355 		else if (right_justify)
6356 			(void) printf("%*s", (int)width, header);
6357 		else
6358 			(void) printf("%-*s", (int)width, header);
6359 	}
6360 
6361 	(void) fputc('\n', stdout);
6362 }
6363 
6364 /*
6365  * Given a pool and a list of properties, print out all the properties according
6366  * to the described layout. Used by zpool_do_list().
6367  */
6368 static void
6369 print_pool(zpool_handle_t *zhp, list_cbdata_t *cb)
6370 {
6371 	zprop_list_t *pl = cb->cb_proplist;
6372 	boolean_t first = B_TRUE;
6373 	char property[ZPOOL_MAXPROPLEN];
6374 	const char *propstr;
6375 	boolean_t right_justify;
6376 	size_t width;
6377 
6378 	for (; pl != NULL; pl = pl->pl_next) {
6379 
6380 		width = pl->pl_width;
6381 		if (first && cb->cb_verbose) {
6382 			/*
6383 			 * Reset the width to accommodate the verbose listing
6384 			 * of devices.
6385 			 */
6386 			width = cb->cb_namewidth;
6387 		}
6388 
6389 		if (!first) {
6390 			if (cb->cb_scripted)
6391 				(void) fputc('\t', stdout);
6392 			else
6393 				(void) fputs("  ", stdout);
6394 		} else {
6395 			first = B_FALSE;
6396 		}
6397 
6398 		right_justify = B_FALSE;
6399 		if (pl->pl_prop != ZPROP_USERPROP) {
6400 			if (zpool_get_prop(zhp, pl->pl_prop, property,
6401 			    sizeof (property), NULL, cb->cb_literal) != 0)
6402 				propstr = "-";
6403 			else
6404 				propstr = property;
6405 
6406 			right_justify = zpool_prop_align_right(pl->pl_prop);
6407 		} else if ((zpool_prop_feature(pl->pl_user_prop) ||
6408 		    zpool_prop_unsupported(pl->pl_user_prop)) &&
6409 		    zpool_prop_get_feature(zhp, pl->pl_user_prop, property,
6410 		    sizeof (property)) == 0) {
6411 			propstr = property;
6412 		} else if (zfs_prop_user(pl->pl_user_prop) &&
6413 		    zpool_get_userprop(zhp, pl->pl_user_prop, property,
6414 		    sizeof (property), NULL) == 0) {
6415 			propstr = property;
6416 		} else {
6417 			propstr = "-";
6418 		}
6419 
6420 		/*
6421 		 * If this is being called in scripted mode, or if this is the
6422 		 * last column and it is left-justified, don't include a width
6423 		 * format specifier.
6424 		 */
6425 		if (cb->cb_scripted || (pl->pl_next == NULL && !right_justify))
6426 			(void) fputs(propstr, stdout);
6427 		else if (right_justify)
6428 			(void) printf("%*s", (int)width, propstr);
6429 		else
6430 			(void) printf("%-*s", (int)width, propstr);
6431 	}
6432 
6433 	(void) fputc('\n', stdout);
6434 }
6435 
6436 static void
6437 print_one_column(zpool_prop_t prop, uint64_t value, const char *str,
6438     boolean_t scripted, boolean_t valid, enum zfs_nicenum_format format)
6439 {
6440 	char propval[64];
6441 	boolean_t fixed;
6442 	size_t width = zprop_width(prop, &fixed, ZFS_TYPE_POOL);
6443 
6444 	switch (prop) {
6445 	case ZPOOL_PROP_SIZE:
6446 	case ZPOOL_PROP_EXPANDSZ:
6447 	case ZPOOL_PROP_CHECKPOINT:
6448 	case ZPOOL_PROP_DEDUPRATIO:
6449 		if (value == 0)
6450 			(void) strlcpy(propval, "-", sizeof (propval));
6451 		else
6452 			zfs_nicenum_format(value, propval, sizeof (propval),
6453 			    format);
6454 		break;
6455 	case ZPOOL_PROP_FRAGMENTATION:
6456 		if (value == ZFS_FRAG_INVALID) {
6457 			(void) strlcpy(propval, "-", sizeof (propval));
6458 		} else if (format == ZFS_NICENUM_RAW) {
6459 			(void) snprintf(propval, sizeof (propval), "%llu",
6460 			    (unsigned long long)value);
6461 		} else {
6462 			(void) snprintf(propval, sizeof (propval), "%llu%%",
6463 			    (unsigned long long)value);
6464 		}
6465 		break;
6466 	case ZPOOL_PROP_CAPACITY:
6467 		/* capacity value is in parts-per-10,000 (aka permyriad) */
6468 		if (format == ZFS_NICENUM_RAW)
6469 			(void) snprintf(propval, sizeof (propval), "%llu",
6470 			    (unsigned long long)value / 100);
6471 		else
6472 			(void) snprintf(propval, sizeof (propval),
6473 			    value < 1000 ? "%1.2f%%" : value < 10000 ?
6474 			    "%2.1f%%" : "%3.0f%%", value / 100.0);
6475 		break;
6476 	case ZPOOL_PROP_HEALTH:
6477 		width = 8;
6478 		(void) strlcpy(propval, str, sizeof (propval));
6479 		break;
6480 	default:
6481 		zfs_nicenum_format(value, propval, sizeof (propval), format);
6482 	}
6483 
6484 	if (!valid)
6485 		(void) strlcpy(propval, "-", sizeof (propval));
6486 
6487 	if (scripted)
6488 		(void) printf("\t%s", propval);
6489 	else
6490 		(void) printf("  %*s", (int)width, propval);
6491 }
6492 
6493 /*
6494  * print static default line per vdev
6495  * not compatible with '-o' <proplist> option
6496  */
6497 static void
6498 print_list_stats(zpool_handle_t *zhp, const char *name, nvlist_t *nv,
6499     list_cbdata_t *cb, int depth, boolean_t isspare)
6500 {
6501 	nvlist_t **child;
6502 	vdev_stat_t *vs;
6503 	uint_t c, children;
6504 	char *vname;
6505 	boolean_t scripted = cb->cb_scripted;
6506 	uint64_t islog = B_FALSE;
6507 	const char *dashes = "%-*s      -      -      -        -         "
6508 	    "-      -      -      -         -\n";
6509 
6510 	verify(nvlist_lookup_uint64_array(nv, ZPOOL_CONFIG_VDEV_STATS,
6511 	    (uint64_t **)&vs, &c) == 0);
6512 
6513 	if (name != NULL) {
6514 		boolean_t toplevel = (vs->vs_space != 0);
6515 		uint64_t cap;
6516 		enum zfs_nicenum_format format;
6517 		const char *state;
6518 
6519 		if (cb->cb_literal)
6520 			format = ZFS_NICENUM_RAW;
6521 		else
6522 			format = ZFS_NICENUM_1024;
6523 
6524 		if (strcmp(name, VDEV_TYPE_INDIRECT) == 0)
6525 			return;
6526 
6527 		if (scripted)
6528 			(void) printf("\t%s", name);
6529 		else if (strlen(name) + depth > cb->cb_namewidth)
6530 			(void) printf("%*s%s", depth, "", name);
6531 		else
6532 			(void) printf("%*s%s%*s", depth, "", name,
6533 			    (int)(cb->cb_namewidth - strlen(name) - depth), "");
6534 
6535 		/*
6536 		 * Print the properties for the individual vdevs. Some
6537 		 * properties are only applicable to toplevel vdevs. The
6538 		 * 'toplevel' boolean value is passed to the print_one_column()
6539 		 * to indicate that the value is valid.
6540 		 */
6541 		if (VDEV_STAT_VALID(vs_pspace, c) && vs->vs_pspace)
6542 			print_one_column(ZPOOL_PROP_SIZE, vs->vs_pspace, NULL,
6543 			    scripted, B_TRUE, format);
6544 		else
6545 			print_one_column(ZPOOL_PROP_SIZE, vs->vs_space, NULL,
6546 			    scripted, toplevel, format);
6547 		print_one_column(ZPOOL_PROP_ALLOCATED, vs->vs_alloc, NULL,
6548 		    scripted, toplevel, format);
6549 		print_one_column(ZPOOL_PROP_FREE, vs->vs_space - vs->vs_alloc,
6550 		    NULL, scripted, toplevel, format);
6551 		print_one_column(ZPOOL_PROP_CHECKPOINT,
6552 		    vs->vs_checkpoint_space, NULL, scripted, toplevel, format);
6553 		print_one_column(ZPOOL_PROP_EXPANDSZ, vs->vs_esize, NULL,
6554 		    scripted, B_TRUE, format);
6555 		print_one_column(ZPOOL_PROP_FRAGMENTATION,
6556 		    vs->vs_fragmentation, NULL, scripted,
6557 		    (vs->vs_fragmentation != ZFS_FRAG_INVALID && toplevel),
6558 		    format);
6559 		cap = (vs->vs_space == 0) ? 0 :
6560 		    (vs->vs_alloc * 10000 / vs->vs_space);
6561 		print_one_column(ZPOOL_PROP_CAPACITY, cap, NULL,
6562 		    scripted, toplevel, format);
6563 		print_one_column(ZPOOL_PROP_DEDUPRATIO, 0, NULL,
6564 		    scripted, toplevel, format);
6565 		state = zpool_state_to_name(vs->vs_state, vs->vs_aux);
6566 		if (isspare) {
6567 			if (vs->vs_aux == VDEV_AUX_SPARED)
6568 				state = "INUSE";
6569 			else if (vs->vs_state == VDEV_STATE_HEALTHY)
6570 				state = "AVAIL";
6571 		}
6572 		print_one_column(ZPOOL_PROP_HEALTH, 0, state, scripted,
6573 		    B_TRUE, format);
6574 		(void) fputc('\n', stdout);
6575 	}
6576 
6577 	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
6578 	    &child, &children) != 0)
6579 		return;
6580 
6581 	/* list the normal vdevs first */
6582 	for (c = 0; c < children; c++) {
6583 		uint64_t ishole = B_FALSE;
6584 
6585 		if (nvlist_lookup_uint64(child[c],
6586 		    ZPOOL_CONFIG_IS_HOLE, &ishole) == 0 && ishole)
6587 			continue;
6588 
6589 		if (nvlist_lookup_uint64(child[c],
6590 		    ZPOOL_CONFIG_IS_LOG, &islog) == 0 && islog)
6591 			continue;
6592 
6593 		if (nvlist_exists(child[c], ZPOOL_CONFIG_ALLOCATION_BIAS))
6594 			continue;
6595 
6596 		vname = zpool_vdev_name(g_zfs, zhp, child[c],
6597 		    cb->cb_name_flags | VDEV_NAME_TYPE_ID);
6598 		print_list_stats(zhp, vname, child[c], cb, depth + 2, B_FALSE);
6599 		free(vname);
6600 	}
6601 
6602 	/* list the classes: 'logs', 'dedup', and 'special' */
6603 	for (uint_t n = 0; n < ARRAY_SIZE(class_name); n++) {
6604 		boolean_t printed = B_FALSE;
6605 
6606 		for (c = 0; c < children; c++) {
6607 			const char *bias = NULL;
6608 			const char *type = NULL;
6609 
6610 			if (nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_LOG,
6611 			    &islog) == 0 && islog) {
6612 				bias = VDEV_ALLOC_CLASS_LOGS;
6613 			} else {
6614 				(void) nvlist_lookup_string(child[c],
6615 				    ZPOOL_CONFIG_ALLOCATION_BIAS, &bias);
6616 				(void) nvlist_lookup_string(child[c],
6617 				    ZPOOL_CONFIG_TYPE, &type);
6618 			}
6619 			if (bias == NULL || strcmp(bias, class_name[n]) != 0)
6620 				continue;
6621 			if (!islog && strcmp(type, VDEV_TYPE_INDIRECT) == 0)
6622 				continue;
6623 
6624 			if (!printed) {
6625 				/* LINTED E_SEC_PRINTF_VAR_FMT */
6626 				(void) printf(dashes, cb->cb_namewidth,
6627 				    class_name[n]);
6628 				printed = B_TRUE;
6629 			}
6630 			vname = zpool_vdev_name(g_zfs, zhp, child[c],
6631 			    cb->cb_name_flags | VDEV_NAME_TYPE_ID);
6632 			print_list_stats(zhp, vname, child[c], cb, depth + 2,
6633 			    B_FALSE);
6634 			free(vname);
6635 		}
6636 	}
6637 
6638 	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_L2CACHE,
6639 	    &child, &children) == 0 && children > 0) {
6640 		/* LINTED E_SEC_PRINTF_VAR_FMT */
6641 		(void) printf(dashes, cb->cb_namewidth, "cache");
6642 		for (c = 0; c < children; c++) {
6643 			vname = zpool_vdev_name(g_zfs, zhp, child[c],
6644 			    cb->cb_name_flags);
6645 			print_list_stats(zhp, vname, child[c], cb, depth + 2,
6646 			    B_FALSE);
6647 			free(vname);
6648 		}
6649 	}
6650 
6651 	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_SPARES, &child,
6652 	    &children) == 0 && children > 0) {
6653 		/* LINTED E_SEC_PRINTF_VAR_FMT */
6654 		(void) printf(dashes, cb->cb_namewidth, "spare");
6655 		for (c = 0; c < children; c++) {
6656 			vname = zpool_vdev_name(g_zfs, zhp, child[c],
6657 			    cb->cb_name_flags);
6658 			print_list_stats(zhp, vname, child[c], cb, depth + 2,
6659 			    B_TRUE);
6660 			free(vname);
6661 		}
6662 	}
6663 }
6664 
6665 /*
6666  * Generic callback function to list a pool.
6667  */
6668 static int
6669 list_callback(zpool_handle_t *zhp, void *data)
6670 {
6671 	list_cbdata_t *cbp = data;
6672 
6673 	print_pool(zhp, cbp);
6674 
6675 	if (cbp->cb_verbose) {
6676 		nvlist_t *config, *nvroot;
6677 
6678 		config = zpool_get_config(zhp, NULL);
6679 		verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
6680 		    &nvroot) == 0);
6681 		print_list_stats(zhp, NULL, nvroot, cbp, 0, B_FALSE);
6682 	}
6683 
6684 	return (0);
6685 }
6686 
6687 /*
6688  * Set the minimum pool/vdev name column width.  The width must be at least 9,
6689  * but may be as large as needed.
6690  */
6691 static int
6692 get_namewidth_list(zpool_handle_t *zhp, void *data)
6693 {
6694 	list_cbdata_t *cb = data;
6695 	int width;
6696 
6697 	width = get_namewidth(zhp, cb->cb_namewidth,
6698 	    cb->cb_name_flags | VDEV_NAME_TYPE_ID, cb->cb_verbose);
6699 
6700 	if (width < 9)
6701 		width = 9;
6702 
6703 	cb->cb_namewidth = width;
6704 
6705 	return (0);
6706 }
6707 
6708 /*
6709  * zpool list [-gHLpP] [-o prop[,prop]*] [-T d|u] [pool] ... [interval [count]]
6710  *
6711  *	-g	Display guid for individual vdev name.
6712  *	-H	Scripted mode.  Don't display headers, and separate properties
6713  *		by a single tab.
6714  *	-L	Follow links when resolving vdev path name.
6715  *	-o	List of properties to display.  Defaults to
6716  *		"name,size,allocated,free,expandsize,fragmentation,capacity,"
6717  *		"dedupratio,health,altroot"
6718  *	-p	Display values in parsable (exact) format.
6719  *	-P	Display full path for vdev name.
6720  *	-T	Display a timestamp in date(1) or Unix format
6721  *
6722  * List all pools in the system, whether or not they're healthy.  Output space
6723  * statistics for each one, as well as health status summary.
6724  */
6725 int
6726 zpool_do_list(int argc, char **argv)
6727 {
6728 	int c;
6729 	int ret = 0;
6730 	list_cbdata_t cb = { 0 };
6731 	static char default_props[] =
6732 	    "name,size,allocated,free,checkpoint,expandsize,fragmentation,"
6733 	    "capacity,dedupratio,health,altroot";
6734 	char *props = default_props;
6735 	float interval = 0;
6736 	unsigned long count = 0;
6737 	zpool_list_t *list;
6738 	boolean_t first = B_TRUE;
6739 	current_prop_type = ZFS_TYPE_POOL;
6740 
6741 	/* check options */
6742 	while ((c = getopt(argc, argv, ":gHLo:pPT:v")) != -1) {
6743 		switch (c) {
6744 		case 'g':
6745 			cb.cb_name_flags |= VDEV_NAME_GUID;
6746 			break;
6747 		case 'H':
6748 			cb.cb_scripted = B_TRUE;
6749 			break;
6750 		case 'L':
6751 			cb.cb_name_flags |= VDEV_NAME_FOLLOW_LINKS;
6752 			break;
6753 		case 'o':
6754 			props = optarg;
6755 			break;
6756 		case 'P':
6757 			cb.cb_name_flags |= VDEV_NAME_PATH;
6758 			break;
6759 		case 'p':
6760 			cb.cb_literal = B_TRUE;
6761 			break;
6762 		case 'T':
6763 			get_timestamp_arg(*optarg);
6764 			break;
6765 		case 'v':
6766 			cb.cb_verbose = B_TRUE;
6767 			cb.cb_namewidth = 8;	/* 8 until precalc is avail */
6768 			break;
6769 		case ':':
6770 			(void) fprintf(stderr, gettext("missing argument for "
6771 			    "'%c' option\n"), optopt);
6772 			usage(B_FALSE);
6773 			break;
6774 		case '?':
6775 			(void) fprintf(stderr, gettext("invalid option '%c'\n"),
6776 			    optopt);
6777 			usage(B_FALSE);
6778 		}
6779 	}
6780 
6781 	argc -= optind;
6782 	argv += optind;
6783 
6784 	get_interval_count(&argc, argv, &interval, &count);
6785 
6786 	if (zprop_get_list(g_zfs, props, &cb.cb_proplist, ZFS_TYPE_POOL) != 0)
6787 		usage(B_FALSE);
6788 
6789 	for (;;) {
6790 		if ((list = pool_list_get(argc, argv, &cb.cb_proplist,
6791 		    ZFS_TYPE_POOL, cb.cb_literal, &ret)) == NULL)
6792 			return (1);
6793 
6794 		if (pool_list_count(list) == 0)
6795 			break;
6796 
6797 		cb.cb_namewidth = 0;
6798 		(void) pool_list_iter(list, B_FALSE, get_namewidth_list, &cb);
6799 
6800 		if (timestamp_fmt != NODATE)
6801 			print_timestamp(timestamp_fmt);
6802 
6803 		if (!cb.cb_scripted && (first || cb.cb_verbose)) {
6804 			print_header(&cb);
6805 			first = B_FALSE;
6806 		}
6807 		ret = pool_list_iter(list, B_TRUE, list_callback, &cb);
6808 
6809 		if (interval == 0)
6810 			break;
6811 
6812 		if (count != 0 && --count == 0)
6813 			break;
6814 
6815 		pool_list_free(list);
6816 
6817 		(void) fflush(stdout);
6818 		(void) fsleep(interval);
6819 	}
6820 
6821 	if (argc == 0 && !cb.cb_scripted && pool_list_count(list) == 0) {
6822 		(void) printf(gettext("no pools available\n"));
6823 		ret = 0;
6824 	}
6825 
6826 	pool_list_free(list);
6827 	zprop_free_list(cb.cb_proplist);
6828 	return (ret);
6829 }
6830 
6831 static int
6832 zpool_do_attach_or_replace(int argc, char **argv, int replacing)
6833 {
6834 	boolean_t force = B_FALSE;
6835 	boolean_t rebuild = B_FALSE;
6836 	boolean_t wait = B_FALSE;
6837 	int c;
6838 	nvlist_t *nvroot;
6839 	char *poolname, *old_disk, *new_disk;
6840 	zpool_handle_t *zhp;
6841 	nvlist_t *props = NULL;
6842 	char *propval;
6843 	int ret;
6844 
6845 	/* check options */
6846 	while ((c = getopt(argc, argv, "fo:sw")) != -1) {
6847 		switch (c) {
6848 		case 'f':
6849 			force = B_TRUE;
6850 			break;
6851 		case 'o':
6852 			if ((propval = strchr(optarg, '=')) == NULL) {
6853 				(void) fprintf(stderr, gettext("missing "
6854 				    "'=' for -o option\n"));
6855 				usage(B_FALSE);
6856 			}
6857 			*propval = '\0';
6858 			propval++;
6859 
6860 			if ((strcmp(optarg, ZPOOL_CONFIG_ASHIFT) != 0) ||
6861 			    (add_prop_list(optarg, propval, &props, B_TRUE)))
6862 				usage(B_FALSE);
6863 			break;
6864 		case 's':
6865 			rebuild = B_TRUE;
6866 			break;
6867 		case 'w':
6868 			wait = B_TRUE;
6869 			break;
6870 		case '?':
6871 			(void) fprintf(stderr, gettext("invalid option '%c'\n"),
6872 			    optopt);
6873 			usage(B_FALSE);
6874 		}
6875 	}
6876 
6877 	argc -= optind;
6878 	argv += optind;
6879 
6880 	/* get pool name and check number of arguments */
6881 	if (argc < 1) {
6882 		(void) fprintf(stderr, gettext("missing pool name argument\n"));
6883 		usage(B_FALSE);
6884 	}
6885 
6886 	poolname = argv[0];
6887 
6888 	if (argc < 2) {
6889 		(void) fprintf(stderr,
6890 		    gettext("missing <device> specification\n"));
6891 		usage(B_FALSE);
6892 	}
6893 
6894 	old_disk = argv[1];
6895 
6896 	if (argc < 3) {
6897 		if (!replacing) {
6898 			(void) fprintf(stderr,
6899 			    gettext("missing <new_device> specification\n"));
6900 			usage(B_FALSE);
6901 		}
6902 		new_disk = old_disk;
6903 		argc -= 1;
6904 		argv += 1;
6905 	} else {
6906 		new_disk = argv[2];
6907 		argc -= 2;
6908 		argv += 2;
6909 	}
6910 
6911 	if (argc > 1) {
6912 		(void) fprintf(stderr, gettext("too many arguments\n"));
6913 		usage(B_FALSE);
6914 	}
6915 
6916 	if ((zhp = zpool_open(g_zfs, poolname)) == NULL) {
6917 		nvlist_free(props);
6918 		return (1);
6919 	}
6920 
6921 	if (zpool_get_config(zhp, NULL) == NULL) {
6922 		(void) fprintf(stderr, gettext("pool '%s' is unavailable\n"),
6923 		    poolname);
6924 		zpool_close(zhp);
6925 		nvlist_free(props);
6926 		return (1);
6927 	}
6928 
6929 	/* unless manually specified use "ashift" pool property (if set) */
6930 	if (!nvlist_exists(props, ZPOOL_CONFIG_ASHIFT)) {
6931 		int intval;
6932 		zprop_source_t src;
6933 		char strval[ZPOOL_MAXPROPLEN];
6934 
6935 		intval = zpool_get_prop_int(zhp, ZPOOL_PROP_ASHIFT, &src);
6936 		if (src != ZPROP_SRC_DEFAULT) {
6937 			(void) sprintf(strval, "%" PRId32, intval);
6938 			verify(add_prop_list(ZPOOL_CONFIG_ASHIFT, strval,
6939 			    &props, B_TRUE) == 0);
6940 		}
6941 	}
6942 
6943 	nvroot = make_root_vdev(zhp, props, force, B_FALSE, replacing, B_FALSE,
6944 	    argc, argv);
6945 	if (nvroot == NULL) {
6946 		zpool_close(zhp);
6947 		nvlist_free(props);
6948 		return (1);
6949 	}
6950 
6951 	ret = zpool_vdev_attach(zhp, old_disk, new_disk, nvroot, replacing,
6952 	    rebuild);
6953 
6954 	if (ret == 0 && wait) {
6955 		zpool_wait_activity_t activity = ZPOOL_WAIT_RESILVER;
6956 		char raidz_prefix[] = "raidz";
6957 		if (replacing) {
6958 			activity = ZPOOL_WAIT_REPLACE;
6959 		} else if (strncmp(old_disk,
6960 		    raidz_prefix, strlen(raidz_prefix)) == 0) {
6961 			activity = ZPOOL_WAIT_RAIDZ_EXPAND;
6962 		}
6963 		ret = zpool_wait(zhp, activity);
6964 	}
6965 
6966 	nvlist_free(props);
6967 	nvlist_free(nvroot);
6968 	zpool_close(zhp);
6969 
6970 	return (ret);
6971 }
6972 
6973 /*
6974  * zpool replace [-fsw] [-o property=value] <pool> <device> <new_device>
6975  *
6976  *	-f	Force attach, even if <new_device> appears to be in use.
6977  *	-s	Use sequential instead of healing reconstruction for resilver.
6978  *	-o	Set property=value.
6979  *	-w	Wait for replacing to complete before returning
6980  *
6981  * Replace <device> with <new_device>.
6982  */
6983 int
6984 zpool_do_replace(int argc, char **argv)
6985 {
6986 	return (zpool_do_attach_or_replace(argc, argv, B_TRUE));
6987 }
6988 
6989 /*
6990  * zpool attach [-fsw] [-o property=value] <pool> <device>|<vdev> <new_device>
6991  *
6992  *	-f	Force attach, even if <new_device> appears to be in use.
6993  *	-s	Use sequential instead of healing reconstruction for resilver.
6994  *	-o	Set property=value.
6995  *	-w	Wait for resilvering (mirror) or expansion (raidz) to complete
6996  *		before returning.
6997  *
6998  * Attach <new_device> to a <device> or <vdev>, where the vdev can be of type
6999  * mirror or raidz. If <device> is not part of a mirror, then <device> will
7000  * be transformed into a mirror of <device> and <new_device>. When a mirror
7001  * is involved, <new_device> will begin life with a DTL of [0, now], and will
7002  * immediately begin to resilver itself. For the raidz case, a expansion will
7003  * commence and reflow the raidz data across all the disks including the
7004  * <new_device>.
7005  */
7006 int
7007 zpool_do_attach(int argc, char **argv)
7008 {
7009 	return (zpool_do_attach_or_replace(argc, argv, B_FALSE));
7010 }
7011 
7012 /*
7013  * zpool detach [-f] <pool> <device>
7014  *
7015  *	-f	Force detach of <device>, even if DTLs argue against it
7016  *		(not supported yet)
7017  *
7018  * Detach a device from a mirror.  The operation will be refused if <device>
7019  * is the last device in the mirror, or if the DTLs indicate that this device
7020  * has the only valid copy of some data.
7021  */
7022 int
7023 zpool_do_detach(int argc, char **argv)
7024 {
7025 	int c;
7026 	char *poolname, *path;
7027 	zpool_handle_t *zhp;
7028 	int ret;
7029 
7030 	/* check options */
7031 	while ((c = getopt(argc, argv, "")) != -1) {
7032 		switch (c) {
7033 		case '?':
7034 			(void) fprintf(stderr, gettext("invalid option '%c'\n"),
7035 			    optopt);
7036 			usage(B_FALSE);
7037 		}
7038 	}
7039 
7040 	argc -= optind;
7041 	argv += optind;
7042 
7043 	/* get pool name and check number of arguments */
7044 	if (argc < 1) {
7045 		(void) fprintf(stderr, gettext("missing pool name argument\n"));
7046 		usage(B_FALSE);
7047 	}
7048 
7049 	if (argc < 2) {
7050 		(void) fprintf(stderr,
7051 		    gettext("missing <device> specification\n"));
7052 		usage(B_FALSE);
7053 	}
7054 
7055 	poolname = argv[0];
7056 	path = argv[1];
7057 
7058 	if ((zhp = zpool_open(g_zfs, poolname)) == NULL)
7059 		return (1);
7060 
7061 	ret = zpool_vdev_detach(zhp, path);
7062 
7063 	zpool_close(zhp);
7064 
7065 	return (ret);
7066 }
7067 
7068 /*
7069  * zpool split [-gLnP] [-o prop=val] ...
7070  *		[-o mntopt] ...
7071  *		[-R altroot] <pool> <newpool> [<device> ...]
7072  *
7073  *	-g      Display guid for individual vdev name.
7074  *	-L	Follow links when resolving vdev path name.
7075  *	-n	Do not split the pool, but display the resulting layout if
7076  *		it were to be split.
7077  *	-o	Set property=value, or set mount options.
7078  *	-P	Display full path for vdev name.
7079  *	-R	Mount the split-off pool under an alternate root.
7080  *	-l	Load encryption keys while importing.
7081  *
7082  * Splits the named pool and gives it the new pool name.  Devices to be split
7083  * off may be listed, provided that no more than one device is specified
7084  * per top-level vdev mirror.  The newly split pool is left in an exported
7085  * state unless -R is specified.
7086  *
7087  * Restrictions: the top-level of the pool pool must only be made up of
7088  * mirrors; all devices in the pool must be healthy; no device may be
7089  * undergoing a resilvering operation.
7090  */
7091 int
7092 zpool_do_split(int argc, char **argv)
7093 {
7094 	char *srcpool, *newpool, *propval;
7095 	char *mntopts = NULL;
7096 	splitflags_t flags;
7097 	int c, ret = 0;
7098 	int ms_status = 0;
7099 	boolean_t loadkeys = B_FALSE;
7100 	zpool_handle_t *zhp;
7101 	nvlist_t *config, *props = NULL;
7102 
7103 	flags.dryrun = B_FALSE;
7104 	flags.import = B_FALSE;
7105 	flags.name_flags = 0;
7106 
7107 	/* check options */
7108 	while ((c = getopt(argc, argv, ":gLR:lno:P")) != -1) {
7109 		switch (c) {
7110 		case 'g':
7111 			flags.name_flags |= VDEV_NAME_GUID;
7112 			break;
7113 		case 'L':
7114 			flags.name_flags |= VDEV_NAME_FOLLOW_LINKS;
7115 			break;
7116 		case 'R':
7117 			flags.import = B_TRUE;
7118 			if (add_prop_list(
7119 			    zpool_prop_to_name(ZPOOL_PROP_ALTROOT), optarg,
7120 			    &props, B_TRUE) != 0) {
7121 				nvlist_free(props);
7122 				usage(B_FALSE);
7123 			}
7124 			break;
7125 		case 'l':
7126 			loadkeys = B_TRUE;
7127 			break;
7128 		case 'n':
7129 			flags.dryrun = B_TRUE;
7130 			break;
7131 		case 'o':
7132 			if ((propval = strchr(optarg, '=')) != NULL) {
7133 				*propval = '\0';
7134 				propval++;
7135 				if (add_prop_list(optarg, propval,
7136 				    &props, B_TRUE) != 0) {
7137 					nvlist_free(props);
7138 					usage(B_FALSE);
7139 				}
7140 			} else {
7141 				mntopts = optarg;
7142 			}
7143 			break;
7144 		case 'P':
7145 			flags.name_flags |= VDEV_NAME_PATH;
7146 			break;
7147 		case ':':
7148 			(void) fprintf(stderr, gettext("missing argument for "
7149 			    "'%c' option\n"), optopt);
7150 			usage(B_FALSE);
7151 			break;
7152 		case '?':
7153 			(void) fprintf(stderr, gettext("invalid option '%c'\n"),
7154 			    optopt);
7155 			usage(B_FALSE);
7156 			break;
7157 		}
7158 	}
7159 
7160 	if (!flags.import && mntopts != NULL) {
7161 		(void) fprintf(stderr, gettext("setting mntopts is only "
7162 		    "valid when importing the pool\n"));
7163 		usage(B_FALSE);
7164 	}
7165 
7166 	if (!flags.import && loadkeys) {
7167 		(void) fprintf(stderr, gettext("loading keys is only "
7168 		    "valid when importing the pool\n"));
7169 		usage(B_FALSE);
7170 	}
7171 
7172 	argc -= optind;
7173 	argv += optind;
7174 
7175 	if (argc < 1) {
7176 		(void) fprintf(stderr, gettext("Missing pool name\n"));
7177 		usage(B_FALSE);
7178 	}
7179 	if (argc < 2) {
7180 		(void) fprintf(stderr, gettext("Missing new pool name\n"));
7181 		usage(B_FALSE);
7182 	}
7183 
7184 	srcpool = argv[0];
7185 	newpool = argv[1];
7186 
7187 	argc -= 2;
7188 	argv += 2;
7189 
7190 	if ((zhp = zpool_open(g_zfs, srcpool)) == NULL) {
7191 		nvlist_free(props);
7192 		return (1);
7193 	}
7194 
7195 	config = split_mirror_vdev(zhp, newpool, props, flags, argc, argv);
7196 	if (config == NULL) {
7197 		ret = 1;
7198 	} else {
7199 		if (flags.dryrun) {
7200 			(void) printf(gettext("would create '%s' with the "
7201 			    "following layout:\n\n"), newpool);
7202 			print_vdev_tree(NULL, newpool, config, 0, "",
7203 			    flags.name_flags);
7204 			print_vdev_tree(NULL, "dedup", config, 0,
7205 			    VDEV_ALLOC_BIAS_DEDUP, 0);
7206 			print_vdev_tree(NULL, "special", config, 0,
7207 			    VDEV_ALLOC_BIAS_SPECIAL, 0);
7208 		}
7209 	}
7210 
7211 	zpool_close(zhp);
7212 
7213 	if (ret != 0 || flags.dryrun || !flags.import) {
7214 		nvlist_free(config);
7215 		nvlist_free(props);
7216 		return (ret);
7217 	}
7218 
7219 	/*
7220 	 * The split was successful. Now we need to open the new
7221 	 * pool and import it.
7222 	 */
7223 	if ((zhp = zpool_open_canfail(g_zfs, newpool)) == NULL) {
7224 		nvlist_free(config);
7225 		nvlist_free(props);
7226 		return (1);
7227 	}
7228 
7229 	if (loadkeys) {
7230 		ret = zfs_crypto_attempt_load_keys(g_zfs, newpool);
7231 		if (ret != 0)
7232 			ret = 1;
7233 	}
7234 
7235 	if (zpool_get_state(zhp) != POOL_STATE_UNAVAIL) {
7236 		ms_status = zpool_enable_datasets(zhp, mntopts, 0,
7237 		    mount_tp_nthr);
7238 		if (ms_status == EZFS_SHAREFAILED) {
7239 			(void) fprintf(stderr, gettext("Split was successful, "
7240 			    "datasets are mounted but sharing of some datasets "
7241 			    "has failed\n"));
7242 		} else if (ms_status == EZFS_MOUNTFAILED) {
7243 			(void) fprintf(stderr, gettext("Split was successful"
7244 			    ", but some datasets could not be mounted\n"));
7245 			(void) fprintf(stderr, gettext("Try doing '%s' with a "
7246 			    "different altroot\n"), "zpool import");
7247 		}
7248 	}
7249 	zpool_close(zhp);
7250 	nvlist_free(config);
7251 	nvlist_free(props);
7252 
7253 	return (ret);
7254 }
7255 
7256 
7257 /*
7258  * zpool online [--power] <pool> <device> ...
7259  *
7260  * --power: Power on the enclosure slot to the drive (if possible)
7261  */
7262 int
7263 zpool_do_online(int argc, char **argv)
7264 {
7265 	int c, i;
7266 	char *poolname;
7267 	zpool_handle_t *zhp;
7268 	int ret = 0;
7269 	vdev_state_t newstate;
7270 	int flags = 0;
7271 	boolean_t is_power_on = B_FALSE;
7272 	struct option long_options[] = {
7273 		{"power", no_argument, NULL, ZPOOL_OPTION_POWER},
7274 		{0, 0, 0, 0}
7275 	};
7276 
7277 	/* check options */
7278 	while ((c = getopt_long(argc, argv, "e", long_options, NULL)) != -1) {
7279 		switch (c) {
7280 		case 'e':
7281 			flags |= ZFS_ONLINE_EXPAND;
7282 			break;
7283 		case ZPOOL_OPTION_POWER:
7284 			is_power_on = B_TRUE;
7285 			break;
7286 		case '?':
7287 			(void) fprintf(stderr, gettext("invalid option '%c'\n"),
7288 			    optopt);
7289 			usage(B_FALSE);
7290 		}
7291 	}
7292 
7293 	if (libzfs_envvar_is_set("ZPOOL_AUTO_POWER_ON_SLOT"))
7294 		is_power_on = B_TRUE;
7295 
7296 	argc -= optind;
7297 	argv += optind;
7298 
7299 	/* get pool name and check number of arguments */
7300 	if (argc < 1) {
7301 		(void) fprintf(stderr, gettext("missing pool name\n"));
7302 		usage(B_FALSE);
7303 	}
7304 	if (argc < 2) {
7305 		(void) fprintf(stderr, gettext("missing device name\n"));
7306 		usage(B_FALSE);
7307 	}
7308 
7309 	poolname = argv[0];
7310 
7311 	if ((zhp = zpool_open(g_zfs, poolname)) == NULL)
7312 		return (1);
7313 
7314 	for (i = 1; i < argc; i++) {
7315 		vdev_state_t oldstate;
7316 		boolean_t avail_spare, l2cache;
7317 		int rc;
7318 
7319 		if (is_power_on) {
7320 			rc = zpool_power_on_and_disk_wait(zhp, argv[i]);
7321 			if (rc == ENOTSUP) {
7322 				(void) fprintf(stderr,
7323 				    gettext("Power control not supported\n"));
7324 			}
7325 			if (rc != 0)
7326 				return (rc);
7327 		}
7328 
7329 		nvlist_t *tgt = zpool_find_vdev(zhp, argv[i], &avail_spare,
7330 		    &l2cache, NULL);
7331 		if (tgt == NULL) {
7332 			ret = 1;
7333 			continue;
7334 		}
7335 		uint_t vsc;
7336 		oldstate = ((vdev_stat_t *)fnvlist_lookup_uint64_array(tgt,
7337 		    ZPOOL_CONFIG_VDEV_STATS, &vsc))->vs_state;
7338 		if (zpool_vdev_online(zhp, argv[i], flags, &newstate) == 0) {
7339 			if (newstate != VDEV_STATE_HEALTHY) {
7340 				(void) printf(gettext("warning: device '%s' "
7341 				    "onlined, but remains in faulted state\n"),
7342 				    argv[i]);
7343 				if (newstate == VDEV_STATE_FAULTED)
7344 					(void) printf(gettext("use 'zpool "
7345 					    "clear' to restore a faulted "
7346 					    "device\n"));
7347 				else
7348 					(void) printf(gettext("use 'zpool "
7349 					    "replace' to replace devices "
7350 					    "that are no longer present\n"));
7351 				if ((flags & ZFS_ONLINE_EXPAND)) {
7352 					(void) printf(gettext("%s: failed "
7353 					    "to expand usable space on "
7354 					    "unhealthy device '%s'\n"),
7355 					    (oldstate >= VDEV_STATE_DEGRADED ?
7356 					    "error" : "warning"), argv[i]);
7357 					if (oldstate >= VDEV_STATE_DEGRADED) {
7358 						ret = 1;
7359 						break;
7360 					}
7361 				}
7362 			}
7363 		} else {
7364 			ret = 1;
7365 		}
7366 	}
7367 
7368 	zpool_close(zhp);
7369 
7370 	return (ret);
7371 }
7372 
7373 /*
7374  * zpool offline [-ft]|[--power] <pool> <device> ...
7375  *
7376  *
7377  *	-f	Force the device into a faulted state.
7378  *
7379  *	-t	Only take the device off-line temporarily.  The offline/faulted
7380  *		state will not be persistent across reboots.
7381  *
7382  *	--power Power off the enclosure slot to the drive (if possible)
7383  */
7384 int
7385 zpool_do_offline(int argc, char **argv)
7386 {
7387 	int c, i;
7388 	char *poolname;
7389 	zpool_handle_t *zhp;
7390 	int ret = 0;
7391 	boolean_t istmp = B_FALSE;
7392 	boolean_t fault = B_FALSE;
7393 	boolean_t is_power_off = B_FALSE;
7394 
7395 	struct option long_options[] = {
7396 		{"power", no_argument, NULL, ZPOOL_OPTION_POWER},
7397 		{0, 0, 0, 0}
7398 	};
7399 
7400 	/* check options */
7401 	while ((c = getopt_long(argc, argv, "ft", long_options, NULL)) != -1) {
7402 		switch (c) {
7403 		case 'f':
7404 			fault = B_TRUE;
7405 			break;
7406 		case 't':
7407 			istmp = B_TRUE;
7408 			break;
7409 		case ZPOOL_OPTION_POWER:
7410 			is_power_off = B_TRUE;
7411 			break;
7412 		case '?':
7413 			(void) fprintf(stderr, gettext("invalid option '%c'\n"),
7414 			    optopt);
7415 			usage(B_FALSE);
7416 		}
7417 	}
7418 
7419 	if (is_power_off && fault) {
7420 		(void) fprintf(stderr,
7421 		    gettext("-0 and -f cannot be used together\n"));
7422 		usage(B_FALSE);
7423 		return (1);
7424 	}
7425 
7426 	if (is_power_off && istmp) {
7427 		(void) fprintf(stderr,
7428 		    gettext("-0 and -t cannot be used together\n"));
7429 		usage(B_FALSE);
7430 		return (1);
7431 	}
7432 
7433 	argc -= optind;
7434 	argv += optind;
7435 
7436 	/* get pool name and check number of arguments */
7437 	if (argc < 1) {
7438 		(void) fprintf(stderr, gettext("missing pool name\n"));
7439 		usage(B_FALSE);
7440 	}
7441 	if (argc < 2) {
7442 		(void) fprintf(stderr, gettext("missing device name\n"));
7443 		usage(B_FALSE);
7444 	}
7445 
7446 	poolname = argv[0];
7447 
7448 	if ((zhp = zpool_open(g_zfs, poolname)) == NULL)
7449 		return (1);
7450 
7451 	for (i = 1; i < argc; i++) {
7452 		uint64_t guid = zpool_vdev_path_to_guid(zhp, argv[i]);
7453 		if (is_power_off) {
7454 			/*
7455 			 * Note: we have to power off first, then set REMOVED,
7456 			 * or else zpool_vdev_set_removed_state() returns
7457 			 * EAGAIN.
7458 			 */
7459 			ret = zpool_power_off(zhp, argv[i]);
7460 			if (ret != 0) {
7461 				(void) fprintf(stderr, "%s %s %d\n",
7462 				    gettext("unable to power off slot for"),
7463 				    argv[i], ret);
7464 			}
7465 			zpool_vdev_set_removed_state(zhp, guid, VDEV_AUX_NONE);
7466 
7467 		} else if (fault) {
7468 			vdev_aux_t aux;
7469 			if (istmp == B_FALSE) {
7470 				/* Force the fault to persist across imports */
7471 				aux = VDEV_AUX_EXTERNAL_PERSIST;
7472 			} else {
7473 				aux = VDEV_AUX_EXTERNAL;
7474 			}
7475 
7476 			if (guid == 0 || zpool_vdev_fault(zhp, guid, aux) != 0)
7477 				ret = 1;
7478 		} else {
7479 			if (zpool_vdev_offline(zhp, argv[i], istmp) != 0)
7480 				ret = 1;
7481 		}
7482 	}
7483 
7484 	zpool_close(zhp);
7485 
7486 	return (ret);
7487 }
7488 
7489 /*
7490  * zpool clear [-nF]|[--power] <pool> [device]
7491  *
7492  * Clear all errors associated with a pool or a particular device.
7493  */
7494 int
7495 zpool_do_clear(int argc, char **argv)
7496 {
7497 	int c;
7498 	int ret = 0;
7499 	boolean_t dryrun = B_FALSE;
7500 	boolean_t do_rewind = B_FALSE;
7501 	boolean_t xtreme_rewind = B_FALSE;
7502 	boolean_t is_power_on = B_FALSE;
7503 	uint32_t rewind_policy = ZPOOL_NO_REWIND;
7504 	nvlist_t *policy = NULL;
7505 	zpool_handle_t *zhp;
7506 	char *pool, *device;
7507 
7508 	struct option long_options[] = {
7509 		{"power", no_argument, NULL, ZPOOL_OPTION_POWER},
7510 		{0, 0, 0, 0}
7511 	};
7512 
7513 	/* check options */
7514 	while ((c = getopt_long(argc, argv, "FnX", long_options,
7515 	    NULL)) != -1) {
7516 		switch (c) {
7517 		case 'F':
7518 			do_rewind = B_TRUE;
7519 			break;
7520 		case 'n':
7521 			dryrun = B_TRUE;
7522 			break;
7523 		case 'X':
7524 			xtreme_rewind = B_TRUE;
7525 			break;
7526 		case ZPOOL_OPTION_POWER:
7527 			is_power_on = B_TRUE;
7528 			break;
7529 		case '?':
7530 			(void) fprintf(stderr, gettext("invalid option '%c'\n"),
7531 			    optopt);
7532 			usage(B_FALSE);
7533 		}
7534 	}
7535 
7536 	if (libzfs_envvar_is_set("ZPOOL_AUTO_POWER_ON_SLOT"))
7537 		is_power_on = B_TRUE;
7538 
7539 	argc -= optind;
7540 	argv += optind;
7541 
7542 	if (argc < 1) {
7543 		(void) fprintf(stderr, gettext("missing pool name\n"));
7544 		usage(B_FALSE);
7545 	}
7546 
7547 	if (argc > 2) {
7548 		(void) fprintf(stderr, gettext("too many arguments\n"));
7549 		usage(B_FALSE);
7550 	}
7551 
7552 	if ((dryrun || xtreme_rewind) && !do_rewind) {
7553 		(void) fprintf(stderr,
7554 		    gettext("-n or -X only meaningful with -F\n"));
7555 		usage(B_FALSE);
7556 	}
7557 	if (dryrun)
7558 		rewind_policy = ZPOOL_TRY_REWIND;
7559 	else if (do_rewind)
7560 		rewind_policy = ZPOOL_DO_REWIND;
7561 	if (xtreme_rewind)
7562 		rewind_policy |= ZPOOL_EXTREME_REWIND;
7563 
7564 	/* In future, further rewind policy choices can be passed along here */
7565 	if (nvlist_alloc(&policy, NV_UNIQUE_NAME, 0) != 0 ||
7566 	    nvlist_add_uint32(policy, ZPOOL_LOAD_REWIND_POLICY,
7567 	    rewind_policy) != 0) {
7568 		return (1);
7569 	}
7570 
7571 	pool = argv[0];
7572 	device = argc == 2 ? argv[1] : NULL;
7573 
7574 	if ((zhp = zpool_open_canfail(g_zfs, pool)) == NULL) {
7575 		nvlist_free(policy);
7576 		return (1);
7577 	}
7578 
7579 	if (is_power_on) {
7580 		if (device == NULL) {
7581 			zpool_power_on_pool_and_wait_for_devices(zhp);
7582 		} else {
7583 			zpool_power_on_and_disk_wait(zhp, device);
7584 		}
7585 	}
7586 
7587 	if (zpool_clear(zhp, device, policy) != 0)
7588 		ret = 1;
7589 
7590 	zpool_close(zhp);
7591 
7592 	nvlist_free(policy);
7593 
7594 	return (ret);
7595 }
7596 
7597 /*
7598  * zpool reguid <pool>
7599  */
7600 int
7601 zpool_do_reguid(int argc, char **argv)
7602 {
7603 	int c;
7604 	char *poolname;
7605 	zpool_handle_t *zhp;
7606 	int ret = 0;
7607 
7608 	/* check options */
7609 	while ((c = getopt(argc, argv, "")) != -1) {
7610 		switch (c) {
7611 		case '?':
7612 			(void) fprintf(stderr, gettext("invalid option '%c'\n"),
7613 			    optopt);
7614 			usage(B_FALSE);
7615 		}
7616 	}
7617 
7618 	argc -= optind;
7619 	argv += optind;
7620 
7621 	/* get pool name and check number of arguments */
7622 	if (argc < 1) {
7623 		(void) fprintf(stderr, gettext("missing pool name\n"));
7624 		usage(B_FALSE);
7625 	}
7626 
7627 	if (argc > 1) {
7628 		(void) fprintf(stderr, gettext("too many arguments\n"));
7629 		usage(B_FALSE);
7630 	}
7631 
7632 	poolname = argv[0];
7633 	if ((zhp = zpool_open(g_zfs, poolname)) == NULL)
7634 		return (1);
7635 
7636 	ret = zpool_reguid(zhp);
7637 
7638 	zpool_close(zhp);
7639 	return (ret);
7640 }
7641 
7642 
7643 /*
7644  * zpool reopen <pool>
7645  *
7646  * Reopen the pool so that the kernel can update the sizes of all vdevs.
7647  */
7648 int
7649 zpool_do_reopen(int argc, char **argv)
7650 {
7651 	int c;
7652 	int ret = 0;
7653 	boolean_t scrub_restart = B_TRUE;
7654 
7655 	/* check options */
7656 	while ((c = getopt(argc, argv, "n")) != -1) {
7657 		switch (c) {
7658 		case 'n':
7659 			scrub_restart = B_FALSE;
7660 			break;
7661 		case '?':
7662 			(void) fprintf(stderr, gettext("invalid option '%c'\n"),
7663 			    optopt);
7664 			usage(B_FALSE);
7665 		}
7666 	}
7667 
7668 	argc -= optind;
7669 	argv += optind;
7670 
7671 	/* if argc == 0 we will execute zpool_reopen_one on all pools */
7672 	ret = for_each_pool(argc, argv, B_TRUE, NULL, ZFS_TYPE_POOL,
7673 	    B_FALSE, zpool_reopen_one, &scrub_restart);
7674 
7675 	return (ret);
7676 }
7677 
7678 typedef struct scrub_cbdata {
7679 	int	cb_type;
7680 	pool_scrub_cmd_t cb_scrub_cmd;
7681 } scrub_cbdata_t;
7682 
7683 static boolean_t
7684 zpool_has_checkpoint(zpool_handle_t *zhp)
7685 {
7686 	nvlist_t *config, *nvroot;
7687 
7688 	config = zpool_get_config(zhp, NULL);
7689 
7690 	if (config != NULL) {
7691 		pool_checkpoint_stat_t *pcs = NULL;
7692 		uint_t c;
7693 
7694 		nvroot = fnvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE);
7695 		(void) nvlist_lookup_uint64_array(nvroot,
7696 		    ZPOOL_CONFIG_CHECKPOINT_STATS, (uint64_t **)&pcs, &c);
7697 
7698 		if (pcs == NULL || pcs->pcs_state == CS_NONE)
7699 			return (B_FALSE);
7700 
7701 		assert(pcs->pcs_state == CS_CHECKPOINT_EXISTS ||
7702 		    pcs->pcs_state == CS_CHECKPOINT_DISCARDING);
7703 		return (B_TRUE);
7704 	}
7705 
7706 	return (B_FALSE);
7707 }
7708 
7709 static int
7710 scrub_callback(zpool_handle_t *zhp, void *data)
7711 {
7712 	scrub_cbdata_t *cb = data;
7713 	int err;
7714 
7715 	/*
7716 	 * Ignore faulted pools.
7717 	 */
7718 	if (zpool_get_state(zhp) == POOL_STATE_UNAVAIL) {
7719 		(void) fprintf(stderr, gettext("cannot scan '%s': pool is "
7720 		    "currently unavailable\n"), zpool_get_name(zhp));
7721 		return (1);
7722 	}
7723 
7724 	err = zpool_scan(zhp, cb->cb_type, cb->cb_scrub_cmd);
7725 
7726 	if (err == 0 && zpool_has_checkpoint(zhp) &&
7727 	    cb->cb_type == POOL_SCAN_SCRUB) {
7728 		(void) printf(gettext("warning: will not scrub state that "
7729 		    "belongs to the checkpoint of pool '%s'\n"),
7730 		    zpool_get_name(zhp));
7731 	}
7732 
7733 	return (err != 0);
7734 }
7735 
7736 static int
7737 wait_callback(zpool_handle_t *zhp, void *data)
7738 {
7739 	zpool_wait_activity_t *act = data;
7740 	return (zpool_wait(zhp, *act));
7741 }
7742 
7743 /*
7744  * zpool scrub [-s | -p] [-w] [-e] <pool> ...
7745  *
7746  *	-e	Only scrub blocks in the error log.
7747  *	-s	Stop.  Stops any in-progress scrub.
7748  *	-p	Pause. Pause in-progress scrub.
7749  *	-w	Wait.  Blocks until scrub has completed.
7750  */
7751 int
7752 zpool_do_scrub(int argc, char **argv)
7753 {
7754 	int c;
7755 	scrub_cbdata_t cb;
7756 	boolean_t wait = B_FALSE;
7757 	int error;
7758 
7759 	cb.cb_type = POOL_SCAN_SCRUB;
7760 	cb.cb_scrub_cmd = POOL_SCRUB_NORMAL;
7761 
7762 	boolean_t is_error_scrub = B_FALSE;
7763 	boolean_t is_pause = B_FALSE;
7764 	boolean_t is_stop = B_FALSE;
7765 
7766 	/* check options */
7767 	while ((c = getopt(argc, argv, "spwe")) != -1) {
7768 		switch (c) {
7769 		case 'e':
7770 			is_error_scrub = B_TRUE;
7771 			break;
7772 		case 's':
7773 			is_stop = B_TRUE;
7774 			break;
7775 		case 'p':
7776 			is_pause = B_TRUE;
7777 			break;
7778 		case 'w':
7779 			wait = B_TRUE;
7780 			break;
7781 		case '?':
7782 			(void) fprintf(stderr, gettext("invalid option '%c'\n"),
7783 			    optopt);
7784 			usage(B_FALSE);
7785 		}
7786 	}
7787 
7788 	if (is_pause && is_stop) {
7789 		(void) fprintf(stderr, gettext("invalid option "
7790 		    "combination :-s and -p are mutually exclusive\n"));
7791 		usage(B_FALSE);
7792 	} else {
7793 		if (is_error_scrub)
7794 			cb.cb_type = POOL_SCAN_ERRORSCRUB;
7795 
7796 		if (is_pause) {
7797 			cb.cb_scrub_cmd = POOL_SCRUB_PAUSE;
7798 		} else if (is_stop) {
7799 			cb.cb_type = POOL_SCAN_NONE;
7800 		} else {
7801 			cb.cb_scrub_cmd = POOL_SCRUB_NORMAL;
7802 		}
7803 	}
7804 
7805 	if (wait && (cb.cb_type == POOL_SCAN_NONE ||
7806 	    cb.cb_scrub_cmd == POOL_SCRUB_PAUSE)) {
7807 		(void) fprintf(stderr, gettext("invalid option combination: "
7808 		    "-w cannot be used with -p or -s\n"));
7809 		usage(B_FALSE);
7810 	}
7811 
7812 	argc -= optind;
7813 	argv += optind;
7814 
7815 	if (argc < 1) {
7816 		(void) fprintf(stderr, gettext("missing pool name argument\n"));
7817 		usage(B_FALSE);
7818 	}
7819 
7820 	error = for_each_pool(argc, argv, B_TRUE, NULL, ZFS_TYPE_POOL,
7821 	    B_FALSE, scrub_callback, &cb);
7822 
7823 	if (wait && !error) {
7824 		zpool_wait_activity_t act = ZPOOL_WAIT_SCRUB;
7825 		error = for_each_pool(argc, argv, B_TRUE, NULL, ZFS_TYPE_POOL,
7826 		    B_FALSE, wait_callback, &act);
7827 	}
7828 
7829 	return (error);
7830 }
7831 
7832 /*
7833  * zpool resilver <pool> ...
7834  *
7835  *	Restarts any in-progress resilver
7836  */
7837 int
7838 zpool_do_resilver(int argc, char **argv)
7839 {
7840 	int c;
7841 	scrub_cbdata_t cb;
7842 
7843 	cb.cb_type = POOL_SCAN_RESILVER;
7844 	cb.cb_scrub_cmd = POOL_SCRUB_NORMAL;
7845 
7846 	/* check options */
7847 	while ((c = getopt(argc, argv, "")) != -1) {
7848 		switch (c) {
7849 		case '?':
7850 			(void) fprintf(stderr, gettext("invalid option '%c'\n"),
7851 			    optopt);
7852 			usage(B_FALSE);
7853 		}
7854 	}
7855 
7856 	argc -= optind;
7857 	argv += optind;
7858 
7859 	if (argc < 1) {
7860 		(void) fprintf(stderr, gettext("missing pool name argument\n"));
7861 		usage(B_FALSE);
7862 	}
7863 
7864 	return (for_each_pool(argc, argv, B_TRUE, NULL, ZFS_TYPE_POOL,
7865 	    B_FALSE, scrub_callback, &cb));
7866 }
7867 
7868 /*
7869  * zpool trim [-d] [-r <rate>] [-c | -s] <pool> [<device> ...]
7870  *
7871  *	-c		Cancel. Ends any in-progress trim.
7872  *	-d		Secure trim.  Requires kernel and device support.
7873  *	-r <rate>	Sets the TRIM rate in bytes (per second). Supports
7874  *			adding a multiplier suffix such as 'k' or 'm'.
7875  *	-s		Suspend. TRIM can then be restarted with no flags.
7876  *	-w		Wait. Blocks until trimming has completed.
7877  */
7878 int
7879 zpool_do_trim(int argc, char **argv)
7880 {
7881 	struct option long_options[] = {
7882 		{"cancel",	no_argument,		NULL,	'c'},
7883 		{"secure",	no_argument,		NULL,	'd'},
7884 		{"rate",	required_argument,	NULL,	'r'},
7885 		{"suspend",	no_argument,		NULL,	's'},
7886 		{"wait",	no_argument,		NULL,	'w'},
7887 		{0, 0, 0, 0}
7888 	};
7889 
7890 	pool_trim_func_t cmd_type = POOL_TRIM_START;
7891 	uint64_t rate = 0;
7892 	boolean_t secure = B_FALSE;
7893 	boolean_t wait = B_FALSE;
7894 
7895 	int c;
7896 	while ((c = getopt_long(argc, argv, "cdr:sw", long_options, NULL))
7897 	    != -1) {
7898 		switch (c) {
7899 		case 'c':
7900 			if (cmd_type != POOL_TRIM_START &&
7901 			    cmd_type != POOL_TRIM_CANCEL) {
7902 				(void) fprintf(stderr, gettext("-c cannot be "
7903 				    "combined with other options\n"));
7904 				usage(B_FALSE);
7905 			}
7906 			cmd_type = POOL_TRIM_CANCEL;
7907 			break;
7908 		case 'd':
7909 			if (cmd_type != POOL_TRIM_START) {
7910 				(void) fprintf(stderr, gettext("-d cannot be "
7911 				    "combined with the -c or -s options\n"));
7912 				usage(B_FALSE);
7913 			}
7914 			secure = B_TRUE;
7915 			break;
7916 		case 'r':
7917 			if (cmd_type != POOL_TRIM_START) {
7918 				(void) fprintf(stderr, gettext("-r cannot be "
7919 				    "combined with the -c or -s options\n"));
7920 				usage(B_FALSE);
7921 			}
7922 			if (zfs_nicestrtonum(g_zfs, optarg, &rate) == -1) {
7923 				(void) fprintf(stderr, "%s: %s\n",
7924 				    gettext("invalid value for rate"),
7925 				    libzfs_error_description(g_zfs));
7926 				usage(B_FALSE);
7927 			}
7928 			break;
7929 		case 's':
7930 			if (cmd_type != POOL_TRIM_START &&
7931 			    cmd_type != POOL_TRIM_SUSPEND) {
7932 				(void) fprintf(stderr, gettext("-s cannot be "
7933 				    "combined with other options\n"));
7934 				usage(B_FALSE);
7935 			}
7936 			cmd_type = POOL_TRIM_SUSPEND;
7937 			break;
7938 		case 'w':
7939 			wait = B_TRUE;
7940 			break;
7941 		case '?':
7942 			if (optopt != 0) {
7943 				(void) fprintf(stderr,
7944 				    gettext("invalid option '%c'\n"), optopt);
7945 			} else {
7946 				(void) fprintf(stderr,
7947 				    gettext("invalid option '%s'\n"),
7948 				    argv[optind - 1]);
7949 			}
7950 			usage(B_FALSE);
7951 		}
7952 	}
7953 
7954 	argc -= optind;
7955 	argv += optind;
7956 
7957 	if (argc < 1) {
7958 		(void) fprintf(stderr, gettext("missing pool name argument\n"));
7959 		usage(B_FALSE);
7960 		return (-1);
7961 	}
7962 
7963 	if (wait && (cmd_type != POOL_TRIM_START)) {
7964 		(void) fprintf(stderr, gettext("-w cannot be used with -c or "
7965 		    "-s\n"));
7966 		usage(B_FALSE);
7967 	}
7968 
7969 	char *poolname = argv[0];
7970 	zpool_handle_t *zhp = zpool_open(g_zfs, poolname);
7971 	if (zhp == NULL)
7972 		return (-1);
7973 
7974 	trimflags_t trim_flags = {
7975 		.secure = secure,
7976 		.rate = rate,
7977 		.wait = wait,
7978 	};
7979 
7980 	nvlist_t *vdevs = fnvlist_alloc();
7981 	if (argc == 1) {
7982 		/* no individual leaf vdevs specified, so add them all */
7983 		nvlist_t *config = zpool_get_config(zhp, NULL);
7984 		nvlist_t *nvroot = fnvlist_lookup_nvlist(config,
7985 		    ZPOOL_CONFIG_VDEV_TREE);
7986 		zpool_collect_leaves(zhp, nvroot, vdevs);
7987 		trim_flags.fullpool = B_TRUE;
7988 	} else {
7989 		trim_flags.fullpool = B_FALSE;
7990 		for (int i = 1; i < argc; i++) {
7991 			fnvlist_add_boolean(vdevs, argv[i]);
7992 		}
7993 	}
7994 
7995 	int error = zpool_trim(zhp, cmd_type, vdevs, &trim_flags);
7996 
7997 	fnvlist_free(vdevs);
7998 	zpool_close(zhp);
7999 
8000 	return (error);
8001 }
8002 
8003 /*
8004  * Converts a total number of seconds to a human readable string broken
8005  * down in to days/hours/minutes/seconds.
8006  */
8007 static void
8008 secs_to_dhms(uint64_t total, char *buf)
8009 {
8010 	uint64_t days = total / 60 / 60 / 24;
8011 	uint64_t hours = (total / 60 / 60) % 24;
8012 	uint64_t mins = (total / 60) % 60;
8013 	uint64_t secs = (total % 60);
8014 
8015 	if (days > 0) {
8016 		(void) sprintf(buf, "%llu days %02llu:%02llu:%02llu",
8017 		    (u_longlong_t)days, (u_longlong_t)hours,
8018 		    (u_longlong_t)mins, (u_longlong_t)secs);
8019 	} else {
8020 		(void) sprintf(buf, "%02llu:%02llu:%02llu",
8021 		    (u_longlong_t)hours, (u_longlong_t)mins,
8022 		    (u_longlong_t)secs);
8023 	}
8024 }
8025 
8026 /*
8027  * Print out detailed error scrub status.
8028  */
8029 static void
8030 print_err_scrub_status(pool_scan_stat_t *ps)
8031 {
8032 	time_t start, end, pause;
8033 	uint64_t total_secs_left;
8034 	uint64_t secs_left, mins_left, hours_left, days_left;
8035 	uint64_t examined, to_be_examined;
8036 
8037 	if (ps == NULL || ps->pss_error_scrub_func != POOL_SCAN_ERRORSCRUB) {
8038 		return;
8039 	}
8040 
8041 	(void) printf(gettext(" scrub: "));
8042 
8043 	start = ps->pss_error_scrub_start;
8044 	end = ps->pss_error_scrub_end;
8045 	pause = ps->pss_pass_error_scrub_pause;
8046 	examined = ps->pss_error_scrub_examined;
8047 	to_be_examined = ps->pss_error_scrub_to_be_examined;
8048 
8049 	assert(ps->pss_error_scrub_func == POOL_SCAN_ERRORSCRUB);
8050 
8051 	if (ps->pss_error_scrub_state == DSS_FINISHED) {
8052 		total_secs_left = end - start;
8053 		days_left = total_secs_left / 60 / 60 / 24;
8054 		hours_left = (total_secs_left / 60 / 60) % 24;
8055 		mins_left = (total_secs_left / 60) % 60;
8056 		secs_left = (total_secs_left % 60);
8057 
8058 		(void) printf(gettext("scrubbed %llu error blocks in %llu days "
8059 		    "%02llu:%02llu:%02llu on %s"), (u_longlong_t)examined,
8060 		    (u_longlong_t)days_left, (u_longlong_t)hours_left,
8061 		    (u_longlong_t)mins_left, (u_longlong_t)secs_left,
8062 		    ctime(&end));
8063 
8064 		return;
8065 	} else if (ps->pss_error_scrub_state == DSS_CANCELED) {
8066 		(void) printf(gettext("error scrub canceled on %s"),
8067 		    ctime(&end));
8068 		return;
8069 	}
8070 	assert(ps->pss_error_scrub_state == DSS_ERRORSCRUBBING);
8071 
8072 	/* Error scrub is in progress. */
8073 	if (pause == 0) {
8074 		(void) printf(gettext("error scrub in progress since %s"),
8075 		    ctime(&start));
8076 	} else {
8077 		(void) printf(gettext("error scrub paused since %s"),
8078 		    ctime(&pause));
8079 		(void) printf(gettext("\terror scrub started on %s"),
8080 		    ctime(&start));
8081 	}
8082 
8083 	double fraction_done = (double)examined / (to_be_examined + examined);
8084 	(void) printf(gettext("\t%.2f%% done, issued I/O for %llu error"
8085 	    " blocks"), 100 * fraction_done, (u_longlong_t)examined);
8086 
8087 	(void) printf("\n");
8088 }
8089 
8090 /*
8091  * Print out detailed scrub status.
8092  */
8093 static void
8094 print_scan_scrub_resilver_status(pool_scan_stat_t *ps)
8095 {
8096 	time_t start, end, pause;
8097 	uint64_t pass_scanned, scanned, pass_issued, issued, total_s, total_i;
8098 	uint64_t elapsed, scan_rate, issue_rate;
8099 	double fraction_done;
8100 	char processed_buf[7], scanned_buf[7], issued_buf[7], total_s_buf[7];
8101 	char total_i_buf[7], srate_buf[7], irate_buf[7], time_buf[32];
8102 
8103 	printf("  ");
8104 	printf_color(ANSI_BOLD, gettext("scan:"));
8105 	printf(" ");
8106 
8107 	/* If there's never been a scan, there's not much to say. */
8108 	if (ps == NULL || ps->pss_func == POOL_SCAN_NONE ||
8109 	    ps->pss_func >= POOL_SCAN_FUNCS) {
8110 		(void) printf(gettext("none requested\n"));
8111 		return;
8112 	}
8113 
8114 	start = ps->pss_start_time;
8115 	end = ps->pss_end_time;
8116 	pause = ps->pss_pass_scrub_pause;
8117 
8118 	zfs_nicebytes(ps->pss_processed, processed_buf, sizeof (processed_buf));
8119 
8120 	int is_resilver = ps->pss_func == POOL_SCAN_RESILVER;
8121 	int is_scrub = ps->pss_func == POOL_SCAN_SCRUB;
8122 	assert(is_resilver || is_scrub);
8123 
8124 	/* Scan is finished or canceled. */
8125 	if (ps->pss_state == DSS_FINISHED) {
8126 		secs_to_dhms(end - start, time_buf);
8127 
8128 		if (is_scrub) {
8129 			(void) printf(gettext("scrub repaired %s "
8130 			    "in %s with %llu errors on %s"), processed_buf,
8131 			    time_buf, (u_longlong_t)ps->pss_errors,
8132 			    ctime(&end));
8133 		} else if (is_resilver) {
8134 			(void) printf(gettext("resilvered %s "
8135 			    "in %s with %llu errors on %s"), processed_buf,
8136 			    time_buf, (u_longlong_t)ps->pss_errors,
8137 			    ctime(&end));
8138 		}
8139 		return;
8140 	} else if (ps->pss_state == DSS_CANCELED) {
8141 		if (is_scrub) {
8142 			(void) printf(gettext("scrub canceled on %s"),
8143 			    ctime(&end));
8144 		} else if (is_resilver) {
8145 			(void) printf(gettext("resilver canceled on %s"),
8146 			    ctime(&end));
8147 		}
8148 		return;
8149 	}
8150 
8151 	assert(ps->pss_state == DSS_SCANNING);
8152 
8153 	/* Scan is in progress. Resilvers can't be paused. */
8154 	if (is_scrub) {
8155 		if (pause == 0) {
8156 			(void) printf(gettext("scrub in progress since %s"),
8157 			    ctime(&start));
8158 		} else {
8159 			(void) printf(gettext("scrub paused since %s"),
8160 			    ctime(&pause));
8161 			(void) printf(gettext("\tscrub started on %s"),
8162 			    ctime(&start));
8163 		}
8164 	} else if (is_resilver) {
8165 		(void) printf(gettext("resilver in progress since %s"),
8166 		    ctime(&start));
8167 	}
8168 
8169 	scanned = ps->pss_examined;
8170 	pass_scanned = ps->pss_pass_exam;
8171 	issued = ps->pss_issued;
8172 	pass_issued = ps->pss_pass_issued;
8173 	total_s = ps->pss_to_examine;
8174 	total_i = ps->pss_to_examine - ps->pss_skipped;
8175 
8176 	/* we are only done with a block once we have issued the IO for it */
8177 	fraction_done = (double)issued / total_i;
8178 
8179 	/* elapsed time for this pass, rounding up to 1 if it's 0 */
8180 	elapsed = time(NULL) - ps->pss_pass_start;
8181 	elapsed -= ps->pss_pass_scrub_spent_paused;
8182 	elapsed = (elapsed != 0) ? elapsed : 1;
8183 
8184 	scan_rate = pass_scanned / elapsed;
8185 	issue_rate = pass_issued / elapsed;
8186 
8187 	/* format all of the numbers we will be reporting */
8188 	zfs_nicebytes(scanned, scanned_buf, sizeof (scanned_buf));
8189 	zfs_nicebytes(issued, issued_buf, sizeof (issued_buf));
8190 	zfs_nicebytes(total_s, total_s_buf, sizeof (total_s_buf));
8191 	zfs_nicebytes(total_i, total_i_buf, sizeof (total_i_buf));
8192 
8193 	/* do not print estimated time if we have a paused scrub */
8194 	(void) printf(gettext("\t%s / %s scanned"), scanned_buf, total_s_buf);
8195 	if (pause == 0 && scan_rate > 0) {
8196 		zfs_nicebytes(scan_rate, srate_buf, sizeof (srate_buf));
8197 		(void) printf(gettext(" at %s/s"), srate_buf);
8198 	}
8199 	(void) printf(gettext(", %s / %s issued"), issued_buf, total_i_buf);
8200 	if (pause == 0 && issue_rate > 0) {
8201 		zfs_nicebytes(issue_rate, irate_buf, sizeof (irate_buf));
8202 		(void) printf(gettext(" at %s/s"), irate_buf);
8203 	}
8204 	(void) printf(gettext("\n"));
8205 
8206 	if (is_resilver) {
8207 		(void) printf(gettext("\t%s resilvered, %.2f%% done"),
8208 		    processed_buf, 100 * fraction_done);
8209 	} else if (is_scrub) {
8210 		(void) printf(gettext("\t%s repaired, %.2f%% done"),
8211 		    processed_buf, 100 * fraction_done);
8212 	}
8213 
8214 	if (pause == 0) {
8215 		/*
8216 		 * Only provide an estimate iff:
8217 		 * 1) we haven't yet issued all we expected, and
8218 		 * 2) the issue rate exceeds 10 MB/s, and
8219 		 * 3) it's either:
8220 		 *    a) a resilver which has started repairs, or
8221 		 *    b) a scrub which has entered the issue phase.
8222 		 */
8223 		if (total_i >= issued && issue_rate >= 10 * 1024 * 1024 &&
8224 		    ((is_resilver && ps->pss_processed > 0) ||
8225 		    (is_scrub && issued > 0))) {
8226 			secs_to_dhms((total_i - issued) / issue_rate, time_buf);
8227 			(void) printf(gettext(", %s to go\n"), time_buf);
8228 		} else {
8229 			(void) printf(gettext(", no estimated "
8230 			    "completion time\n"));
8231 		}
8232 	} else {
8233 		(void) printf(gettext("\n"));
8234 	}
8235 }
8236 
8237 static void
8238 print_rebuild_status_impl(vdev_rebuild_stat_t *vrs, uint_t c, char *vdev_name)
8239 {
8240 	if (vrs == NULL || vrs->vrs_state == VDEV_REBUILD_NONE)
8241 		return;
8242 
8243 	printf("  ");
8244 	printf_color(ANSI_BOLD, gettext("scan:"));
8245 	printf(" ");
8246 
8247 	uint64_t bytes_scanned = vrs->vrs_bytes_scanned;
8248 	uint64_t bytes_issued = vrs->vrs_bytes_issued;
8249 	uint64_t bytes_rebuilt = vrs->vrs_bytes_rebuilt;
8250 	uint64_t bytes_est_s = vrs->vrs_bytes_est;
8251 	uint64_t bytes_est_i = vrs->vrs_bytes_est;
8252 	if (c > offsetof(vdev_rebuild_stat_t, vrs_pass_bytes_skipped) / 8)
8253 		bytes_est_i -= vrs->vrs_pass_bytes_skipped;
8254 	uint64_t scan_rate = (vrs->vrs_pass_bytes_scanned /
8255 	    (vrs->vrs_pass_time_ms + 1)) * 1000;
8256 	uint64_t issue_rate = (vrs->vrs_pass_bytes_issued /
8257 	    (vrs->vrs_pass_time_ms + 1)) * 1000;
8258 	double scan_pct = MIN((double)bytes_scanned * 100 /
8259 	    (bytes_est_s + 1), 100);
8260 
8261 	/* Format all of the numbers we will be reporting */
8262 	char bytes_scanned_buf[7], bytes_issued_buf[7];
8263 	char bytes_rebuilt_buf[7], bytes_est_s_buf[7], bytes_est_i_buf[7];
8264 	char scan_rate_buf[7], issue_rate_buf[7], time_buf[32];
8265 	zfs_nicebytes(bytes_scanned, bytes_scanned_buf,
8266 	    sizeof (bytes_scanned_buf));
8267 	zfs_nicebytes(bytes_issued, bytes_issued_buf,
8268 	    sizeof (bytes_issued_buf));
8269 	zfs_nicebytes(bytes_rebuilt, bytes_rebuilt_buf,
8270 	    sizeof (bytes_rebuilt_buf));
8271 	zfs_nicebytes(bytes_est_s, bytes_est_s_buf, sizeof (bytes_est_s_buf));
8272 	zfs_nicebytes(bytes_est_i, bytes_est_i_buf, sizeof (bytes_est_i_buf));
8273 
8274 	time_t start = vrs->vrs_start_time;
8275 	time_t end = vrs->vrs_end_time;
8276 
8277 	/* Rebuild is finished or canceled. */
8278 	if (vrs->vrs_state == VDEV_REBUILD_COMPLETE) {
8279 		secs_to_dhms(vrs->vrs_scan_time_ms / 1000, time_buf);
8280 		(void) printf(gettext("resilvered (%s) %s in %s "
8281 		    "with %llu errors on %s"), vdev_name, bytes_rebuilt_buf,
8282 		    time_buf, (u_longlong_t)vrs->vrs_errors, ctime(&end));
8283 		return;
8284 	} else if (vrs->vrs_state == VDEV_REBUILD_CANCELED) {
8285 		(void) printf(gettext("resilver (%s) canceled on %s"),
8286 		    vdev_name, ctime(&end));
8287 		return;
8288 	} else if (vrs->vrs_state == VDEV_REBUILD_ACTIVE) {
8289 		(void) printf(gettext("resilver (%s) in progress since %s"),
8290 		    vdev_name, ctime(&start));
8291 	}
8292 
8293 	assert(vrs->vrs_state == VDEV_REBUILD_ACTIVE);
8294 
8295 	(void) printf(gettext("\t%s / %s scanned"), bytes_scanned_buf,
8296 	    bytes_est_s_buf);
8297 	if (scan_rate > 0) {
8298 		zfs_nicebytes(scan_rate, scan_rate_buf, sizeof (scan_rate_buf));
8299 		(void) printf(gettext(" at %s/s"), scan_rate_buf);
8300 	}
8301 	(void) printf(gettext(", %s / %s issued"), bytes_issued_buf,
8302 	    bytes_est_i_buf);
8303 	if (issue_rate > 0) {
8304 		zfs_nicebytes(issue_rate, issue_rate_buf,
8305 		    sizeof (issue_rate_buf));
8306 		(void) printf(gettext(" at %s/s"), issue_rate_buf);
8307 	}
8308 	(void) printf(gettext("\n"));
8309 
8310 	(void) printf(gettext("\t%s resilvered, %.2f%% done"),
8311 	    bytes_rebuilt_buf, scan_pct);
8312 
8313 	if (vrs->vrs_state == VDEV_REBUILD_ACTIVE) {
8314 		if (bytes_est_s >= bytes_scanned &&
8315 		    scan_rate >= 10 * 1024 * 1024) {
8316 			secs_to_dhms((bytes_est_s - bytes_scanned) / scan_rate,
8317 			    time_buf);
8318 			(void) printf(gettext(", %s to go\n"), time_buf);
8319 		} else {
8320 			(void) printf(gettext(", no estimated "
8321 			    "completion time\n"));
8322 		}
8323 	} else {
8324 		(void) printf(gettext("\n"));
8325 	}
8326 }
8327 
8328 /*
8329  * Print rebuild status for top-level vdevs.
8330  */
8331 static void
8332 print_rebuild_status(zpool_handle_t *zhp, nvlist_t *nvroot)
8333 {
8334 	nvlist_t **child;
8335 	uint_t children;
8336 
8337 	if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_CHILDREN,
8338 	    &child, &children) != 0)
8339 		children = 0;
8340 
8341 	for (uint_t c = 0; c < children; c++) {
8342 		vdev_rebuild_stat_t *vrs;
8343 		uint_t i;
8344 
8345 		if (nvlist_lookup_uint64_array(child[c],
8346 		    ZPOOL_CONFIG_REBUILD_STATS, (uint64_t **)&vrs, &i) == 0) {
8347 			char *name = zpool_vdev_name(g_zfs, zhp,
8348 			    child[c], VDEV_NAME_TYPE_ID);
8349 			print_rebuild_status_impl(vrs, i, name);
8350 			free(name);
8351 		}
8352 	}
8353 }
8354 
8355 /*
8356  * As we don't scrub checkpointed blocks, we want to warn the user that we
8357  * skipped scanning some blocks if a checkpoint exists or existed at any
8358  * time during the scan.  If a sequential instead of healing reconstruction
8359  * was performed then the blocks were reconstructed.  However, their checksums
8360  * have not been verified so we still print the warning.
8361  */
8362 static void
8363 print_checkpoint_scan_warning(pool_scan_stat_t *ps, pool_checkpoint_stat_t *pcs)
8364 {
8365 	if (ps == NULL || pcs == NULL)
8366 		return;
8367 
8368 	if (pcs->pcs_state == CS_NONE ||
8369 	    pcs->pcs_state == CS_CHECKPOINT_DISCARDING)
8370 		return;
8371 
8372 	assert(pcs->pcs_state == CS_CHECKPOINT_EXISTS);
8373 
8374 	if (ps->pss_state == DSS_NONE)
8375 		return;
8376 
8377 	if ((ps->pss_state == DSS_FINISHED || ps->pss_state == DSS_CANCELED) &&
8378 	    ps->pss_end_time < pcs->pcs_start_time)
8379 		return;
8380 
8381 	if (ps->pss_state == DSS_FINISHED || ps->pss_state == DSS_CANCELED) {
8382 		(void) printf(gettext("    scan warning: skipped blocks "
8383 		    "that are only referenced by the checkpoint.\n"));
8384 	} else {
8385 		assert(ps->pss_state == DSS_SCANNING);
8386 		(void) printf(gettext("    scan warning: skipping blocks "
8387 		    "that are only referenced by the checkpoint.\n"));
8388 	}
8389 }
8390 
8391 /*
8392  * Returns B_TRUE if there is an active rebuild in progress.  Otherwise,
8393  * B_FALSE is returned and 'rebuild_end_time' is set to the end time for
8394  * the last completed (or cancelled) rebuild.
8395  */
8396 static boolean_t
8397 check_rebuilding(nvlist_t *nvroot, uint64_t *rebuild_end_time)
8398 {
8399 	nvlist_t **child;
8400 	uint_t children;
8401 	boolean_t rebuilding = B_FALSE;
8402 	uint64_t end_time = 0;
8403 
8404 	if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_CHILDREN,
8405 	    &child, &children) != 0)
8406 		children = 0;
8407 
8408 	for (uint_t c = 0; c < children; c++) {
8409 		vdev_rebuild_stat_t *vrs;
8410 		uint_t i;
8411 
8412 		if (nvlist_lookup_uint64_array(child[c],
8413 		    ZPOOL_CONFIG_REBUILD_STATS, (uint64_t **)&vrs, &i) == 0) {
8414 
8415 			if (vrs->vrs_end_time > end_time)
8416 				end_time = vrs->vrs_end_time;
8417 
8418 			if (vrs->vrs_state == VDEV_REBUILD_ACTIVE) {
8419 				rebuilding = B_TRUE;
8420 				end_time = 0;
8421 				break;
8422 			}
8423 		}
8424 	}
8425 
8426 	if (rebuild_end_time != NULL)
8427 		*rebuild_end_time = end_time;
8428 
8429 	return (rebuilding);
8430 }
8431 
8432 /*
8433  * Print the scan status.
8434  */
8435 static void
8436 print_scan_status(zpool_handle_t *zhp, nvlist_t *nvroot)
8437 {
8438 	uint64_t rebuild_end_time = 0, resilver_end_time = 0;
8439 	boolean_t have_resilver = B_FALSE, have_scrub = B_FALSE;
8440 	boolean_t have_errorscrub = B_FALSE;
8441 	boolean_t active_resilver = B_FALSE;
8442 	pool_checkpoint_stat_t *pcs = NULL;
8443 	pool_scan_stat_t *ps = NULL;
8444 	uint_t c;
8445 	time_t scrub_start = 0, errorscrub_start = 0;
8446 
8447 	if (nvlist_lookup_uint64_array(nvroot, ZPOOL_CONFIG_SCAN_STATS,
8448 	    (uint64_t **)&ps, &c) == 0) {
8449 		if (ps->pss_func == POOL_SCAN_RESILVER) {
8450 			resilver_end_time = ps->pss_end_time;
8451 			active_resilver = (ps->pss_state == DSS_SCANNING);
8452 		}
8453 
8454 		have_resilver = (ps->pss_func == POOL_SCAN_RESILVER);
8455 		have_scrub = (ps->pss_func == POOL_SCAN_SCRUB);
8456 		scrub_start = ps->pss_start_time;
8457 		if (c > offsetof(pool_scan_stat_t,
8458 		    pss_pass_error_scrub_pause) / 8) {
8459 			have_errorscrub = (ps->pss_error_scrub_func ==
8460 			    POOL_SCAN_ERRORSCRUB);
8461 			errorscrub_start = ps->pss_error_scrub_start;
8462 		}
8463 	}
8464 
8465 	boolean_t active_rebuild = check_rebuilding(nvroot, &rebuild_end_time);
8466 	boolean_t have_rebuild = (active_rebuild || (rebuild_end_time > 0));
8467 
8468 	/* Always print the scrub status when available. */
8469 	if (have_scrub && scrub_start > errorscrub_start)
8470 		print_scan_scrub_resilver_status(ps);
8471 	else if (have_errorscrub && errorscrub_start >= scrub_start)
8472 		print_err_scrub_status(ps);
8473 
8474 	/*
8475 	 * When there is an active resilver or rebuild print its status.
8476 	 * Otherwise print the status of the last resilver or rebuild.
8477 	 */
8478 	if (active_resilver || (!active_rebuild && have_resilver &&
8479 	    resilver_end_time && resilver_end_time > rebuild_end_time)) {
8480 		print_scan_scrub_resilver_status(ps);
8481 	} else if (active_rebuild || (!active_resilver && have_rebuild &&
8482 	    rebuild_end_time && rebuild_end_time > resilver_end_time)) {
8483 		print_rebuild_status(zhp, nvroot);
8484 	}
8485 
8486 	(void) nvlist_lookup_uint64_array(nvroot,
8487 	    ZPOOL_CONFIG_CHECKPOINT_STATS, (uint64_t **)&pcs, &c);
8488 	print_checkpoint_scan_warning(ps, pcs);
8489 }
8490 
8491 /*
8492  * Print out detailed removal status.
8493  */
8494 static void
8495 print_removal_status(zpool_handle_t *zhp, pool_removal_stat_t *prs)
8496 {
8497 	char copied_buf[7], examined_buf[7], total_buf[7], rate_buf[7];
8498 	time_t start, end;
8499 	nvlist_t *config, *nvroot;
8500 	nvlist_t **child;
8501 	uint_t children;
8502 	char *vdev_name;
8503 
8504 	if (prs == NULL || prs->prs_state == DSS_NONE)
8505 		return;
8506 
8507 	/*
8508 	 * Determine name of vdev.
8509 	 */
8510 	config = zpool_get_config(zhp, NULL);
8511 	nvroot = fnvlist_lookup_nvlist(config,
8512 	    ZPOOL_CONFIG_VDEV_TREE);
8513 	verify(nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_CHILDREN,
8514 	    &child, &children) == 0);
8515 	assert(prs->prs_removing_vdev < children);
8516 	vdev_name = zpool_vdev_name(g_zfs, zhp,
8517 	    child[prs->prs_removing_vdev], B_TRUE);
8518 
8519 	printf_color(ANSI_BOLD, gettext("remove: "));
8520 
8521 	start = prs->prs_start_time;
8522 	end = prs->prs_end_time;
8523 	zfs_nicenum(prs->prs_copied, copied_buf, sizeof (copied_buf));
8524 
8525 	/*
8526 	 * Removal is finished or canceled.
8527 	 */
8528 	if (prs->prs_state == DSS_FINISHED) {
8529 		uint64_t minutes_taken = (end - start) / 60;
8530 
8531 		(void) printf(gettext("Removal of vdev %llu copied %s "
8532 		    "in %lluh%um, completed on %s"),
8533 		    (longlong_t)prs->prs_removing_vdev,
8534 		    copied_buf,
8535 		    (u_longlong_t)(minutes_taken / 60),
8536 		    (uint_t)(minutes_taken % 60),
8537 		    ctime((time_t *)&end));
8538 	} else if (prs->prs_state == DSS_CANCELED) {
8539 		(void) printf(gettext("Removal of %s canceled on %s"),
8540 		    vdev_name, ctime(&end));
8541 	} else {
8542 		uint64_t copied, total, elapsed, mins_left, hours_left;
8543 		double fraction_done;
8544 		uint_t rate;
8545 
8546 		assert(prs->prs_state == DSS_SCANNING);
8547 
8548 		/*
8549 		 * Removal is in progress.
8550 		 */
8551 		(void) printf(gettext(
8552 		    "Evacuation of %s in progress since %s"),
8553 		    vdev_name, ctime(&start));
8554 
8555 		copied = prs->prs_copied > 0 ? prs->prs_copied : 1;
8556 		total = prs->prs_to_copy;
8557 		fraction_done = (double)copied / total;
8558 
8559 		/* elapsed time for this pass */
8560 		elapsed = time(NULL) - prs->prs_start_time;
8561 		elapsed = elapsed > 0 ? elapsed : 1;
8562 		rate = copied / elapsed;
8563 		rate = rate > 0 ? rate : 1;
8564 		mins_left = ((total - copied) / rate) / 60;
8565 		hours_left = mins_left / 60;
8566 
8567 		zfs_nicenum(copied, examined_buf, sizeof (examined_buf));
8568 		zfs_nicenum(total, total_buf, sizeof (total_buf));
8569 		zfs_nicenum(rate, rate_buf, sizeof (rate_buf));
8570 
8571 		/*
8572 		 * do not print estimated time if hours_left is more than
8573 		 * 30 days
8574 		 */
8575 		(void) printf(gettext(
8576 		    "\t%s copied out of %s at %s/s, %.2f%% done"),
8577 		    examined_buf, total_buf, rate_buf, 100 * fraction_done);
8578 		if (hours_left < (30 * 24)) {
8579 			(void) printf(gettext(", %lluh%um to go\n"),
8580 			    (u_longlong_t)hours_left, (uint_t)(mins_left % 60));
8581 		} else {
8582 			(void) printf(gettext(
8583 			    ", (copy is slow, no estimated time)\n"));
8584 		}
8585 	}
8586 	free(vdev_name);
8587 
8588 	if (prs->prs_mapping_memory > 0) {
8589 		char mem_buf[7];
8590 		zfs_nicenum(prs->prs_mapping_memory, mem_buf, sizeof (mem_buf));
8591 		(void) printf(gettext(
8592 		    "\t%s memory used for removed device mappings\n"),
8593 		    mem_buf);
8594 	}
8595 }
8596 
8597 /*
8598  * Print out detailed raidz expansion status.
8599  */
8600 static void
8601 print_raidz_expand_status(zpool_handle_t *zhp, pool_raidz_expand_stat_t *pres)
8602 {
8603 	char copied_buf[7];
8604 
8605 	if (pres == NULL || pres->pres_state == DSS_NONE)
8606 		return;
8607 
8608 	/*
8609 	 * Determine name of vdev.
8610 	 */
8611 	nvlist_t *config = zpool_get_config(zhp, NULL);
8612 	nvlist_t *nvroot = fnvlist_lookup_nvlist(config,
8613 	    ZPOOL_CONFIG_VDEV_TREE);
8614 	nvlist_t **child;
8615 	uint_t children;
8616 	verify(nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_CHILDREN,
8617 	    &child, &children) == 0);
8618 	assert(pres->pres_expanding_vdev < children);
8619 
8620 	printf_color(ANSI_BOLD, gettext("expand: "));
8621 
8622 	time_t start = pres->pres_start_time;
8623 	time_t end = pres->pres_end_time;
8624 	char *vname =
8625 	    zpool_vdev_name(g_zfs, zhp, child[pres->pres_expanding_vdev], 0);
8626 	zfs_nicenum(pres->pres_reflowed, copied_buf, sizeof (copied_buf));
8627 
8628 	/*
8629 	 * Expansion is finished or canceled.
8630 	 */
8631 	if (pres->pres_state == DSS_FINISHED) {
8632 		char time_buf[32];
8633 		secs_to_dhms(end - start, time_buf);
8634 
8635 		(void) printf(gettext("expanded %s-%u copied %s in %s, "
8636 		    "on %s"), vname, (int)pres->pres_expanding_vdev,
8637 		    copied_buf, time_buf, ctime((time_t *)&end));
8638 	} else {
8639 		char examined_buf[7], total_buf[7], rate_buf[7];
8640 		uint64_t copied, total, elapsed, secs_left;
8641 		double fraction_done;
8642 		uint_t rate;
8643 
8644 		assert(pres->pres_state == DSS_SCANNING);
8645 
8646 		/*
8647 		 * Expansion is in progress.
8648 		 */
8649 		(void) printf(gettext(
8650 		    "expansion of %s-%u in progress since %s"),
8651 		    vname, (int)pres->pres_expanding_vdev, ctime(&start));
8652 
8653 		copied = pres->pres_reflowed > 0 ? pres->pres_reflowed : 1;
8654 		total = pres->pres_to_reflow;
8655 		fraction_done = (double)copied / total;
8656 
8657 		/* elapsed time for this pass */
8658 		elapsed = time(NULL) - pres->pres_start_time;
8659 		elapsed = elapsed > 0 ? elapsed : 1;
8660 		rate = copied / elapsed;
8661 		rate = rate > 0 ? rate : 1;
8662 		secs_left = (total - copied) / rate;
8663 
8664 		zfs_nicenum(copied, examined_buf, sizeof (examined_buf));
8665 		zfs_nicenum(total, total_buf, sizeof (total_buf));
8666 		zfs_nicenum(rate, rate_buf, sizeof (rate_buf));
8667 
8668 		/*
8669 		 * do not print estimated time if hours_left is more than
8670 		 * 30 days
8671 		 */
8672 		(void) printf(gettext("\t%s / %s copied at %s/s, %.2f%% done"),
8673 		    examined_buf, total_buf, rate_buf, 100 * fraction_done);
8674 		if (pres->pres_waiting_for_resilver) {
8675 			(void) printf(gettext(", paused for resilver or "
8676 			    "clear\n"));
8677 		} else if (secs_left < (30 * 24 * 3600)) {
8678 			char time_buf[32];
8679 			secs_to_dhms(secs_left, time_buf);
8680 			(void) printf(gettext(", %s to go\n"), time_buf);
8681 		} else {
8682 			(void) printf(gettext(
8683 			    ", (copy is slow, no estimated time)\n"));
8684 		}
8685 	}
8686 	free(vname);
8687 }
8688 static void
8689 print_checkpoint_status(pool_checkpoint_stat_t *pcs)
8690 {
8691 	time_t start;
8692 	char space_buf[7];
8693 
8694 	if (pcs == NULL || pcs->pcs_state == CS_NONE)
8695 		return;
8696 
8697 	(void) printf(gettext("checkpoint: "));
8698 
8699 	start = pcs->pcs_start_time;
8700 	zfs_nicenum(pcs->pcs_space, space_buf, sizeof (space_buf));
8701 
8702 	if (pcs->pcs_state == CS_CHECKPOINT_EXISTS) {
8703 		char *date = ctime(&start);
8704 
8705 		/*
8706 		 * ctime() adds a newline at the end of the generated
8707 		 * string, thus the weird format specifier and the
8708 		 * strlen() call used to chop it off from the output.
8709 		 */
8710 		(void) printf(gettext("created %.*s, consumes %s\n"),
8711 		    (int)(strlen(date) - 1), date, space_buf);
8712 		return;
8713 	}
8714 
8715 	assert(pcs->pcs_state == CS_CHECKPOINT_DISCARDING);
8716 
8717 	(void) printf(gettext("discarding, %s remaining.\n"),
8718 	    space_buf);
8719 }
8720 
8721 static void
8722 print_error_log(zpool_handle_t *zhp)
8723 {
8724 	nvlist_t *nverrlist = NULL;
8725 	nvpair_t *elem;
8726 	char *pathname;
8727 	size_t len = MAXPATHLEN * 2;
8728 
8729 	if (zpool_get_errlog(zhp, &nverrlist) != 0)
8730 		return;
8731 
8732 	(void) printf("errors: Permanent errors have been "
8733 	    "detected in the following files:\n\n");
8734 
8735 	pathname = safe_malloc(len);
8736 	elem = NULL;
8737 	while ((elem = nvlist_next_nvpair(nverrlist, elem)) != NULL) {
8738 		nvlist_t *nv;
8739 		uint64_t dsobj, obj;
8740 
8741 		verify(nvpair_value_nvlist(elem, &nv) == 0);
8742 		verify(nvlist_lookup_uint64(nv, ZPOOL_ERR_DATASET,
8743 		    &dsobj) == 0);
8744 		verify(nvlist_lookup_uint64(nv, ZPOOL_ERR_OBJECT,
8745 		    &obj) == 0);
8746 		zpool_obj_to_path(zhp, dsobj, obj, pathname, len);
8747 		(void) printf("%7s %s\n", "", pathname);
8748 	}
8749 	free(pathname);
8750 	nvlist_free(nverrlist);
8751 }
8752 
8753 static void
8754 print_spares(zpool_handle_t *zhp, status_cbdata_t *cb, nvlist_t **spares,
8755     uint_t nspares)
8756 {
8757 	uint_t i;
8758 	char *name;
8759 
8760 	if (nspares == 0)
8761 		return;
8762 
8763 	(void) printf(gettext("\tspares\n"));
8764 
8765 	for (i = 0; i < nspares; i++) {
8766 		name = zpool_vdev_name(g_zfs, zhp, spares[i],
8767 		    cb->cb_name_flags);
8768 		print_status_config(zhp, cb, name, spares[i], 2, B_TRUE, NULL);
8769 		free(name);
8770 	}
8771 }
8772 
8773 static void
8774 print_l2cache(zpool_handle_t *zhp, status_cbdata_t *cb, nvlist_t **l2cache,
8775     uint_t nl2cache)
8776 {
8777 	uint_t i;
8778 	char *name;
8779 
8780 	if (nl2cache == 0)
8781 		return;
8782 
8783 	(void) printf(gettext("\tcache\n"));
8784 
8785 	for (i = 0; i < nl2cache; i++) {
8786 		name = zpool_vdev_name(g_zfs, zhp, l2cache[i],
8787 		    cb->cb_name_flags);
8788 		print_status_config(zhp, cb, name, l2cache[i], 2,
8789 		    B_FALSE, NULL);
8790 		free(name);
8791 	}
8792 }
8793 
8794 static void
8795 print_dedup_stats(nvlist_t *config)
8796 {
8797 	ddt_histogram_t *ddh;
8798 	ddt_stat_t *dds;
8799 	ddt_object_t *ddo;
8800 	uint_t c;
8801 	char dspace[6], mspace[6];
8802 
8803 	/*
8804 	 * If the pool was faulted then we may not have been able to
8805 	 * obtain the config. Otherwise, if we have anything in the dedup
8806 	 * table continue processing the stats.
8807 	 */
8808 	if (nvlist_lookup_uint64_array(config, ZPOOL_CONFIG_DDT_OBJ_STATS,
8809 	    (uint64_t **)&ddo, &c) != 0)
8810 		return;
8811 
8812 	(void) printf("\n");
8813 	(void) printf(gettext(" dedup: "));
8814 	if (ddo->ddo_count == 0) {
8815 		(void) printf(gettext("no DDT entries\n"));
8816 		return;
8817 	}
8818 
8819 	zfs_nicebytes(ddo->ddo_dspace, dspace, sizeof (dspace));
8820 	zfs_nicebytes(ddo->ddo_mspace, mspace, sizeof (mspace));
8821 	(void) printf("DDT entries %llu, size %s on disk, %s in core\n",
8822 	    (u_longlong_t)ddo->ddo_count,
8823 	    dspace,
8824 	    mspace);
8825 
8826 	verify(nvlist_lookup_uint64_array(config, ZPOOL_CONFIG_DDT_STATS,
8827 	    (uint64_t **)&dds, &c) == 0);
8828 	verify(nvlist_lookup_uint64_array(config, ZPOOL_CONFIG_DDT_HISTOGRAM,
8829 	    (uint64_t **)&ddh, &c) == 0);
8830 	zpool_dump_ddt(dds, ddh);
8831 }
8832 
8833 /*
8834  * Display a summary of pool status.  Displays a summary such as:
8835  *
8836  *        pool: tank
8837  *	status: DEGRADED
8838  *	reason: One or more devices ...
8839  *         see: https://openzfs.github.io/openzfs-docs/msg/ZFS-xxxx-01
8840  *	config:
8841  *		mirror		DEGRADED
8842  *                c1t0d0	OK
8843  *                c2t0d0	UNAVAIL
8844  *
8845  * When given the '-v' option, we print out the complete config.  If the '-e'
8846  * option is specified, then we print out error rate information as well.
8847  */
8848 static int
8849 status_callback(zpool_handle_t *zhp, void *data)
8850 {
8851 	status_cbdata_t *cbp = data;
8852 	nvlist_t *config, *nvroot;
8853 	const char *msgid;
8854 	zpool_status_t reason;
8855 	zpool_errata_t errata;
8856 	const char *health;
8857 	uint_t c;
8858 	vdev_stat_t *vs;
8859 
8860 	config = zpool_get_config(zhp, NULL);
8861 	reason = zpool_get_status(zhp, &msgid, &errata);
8862 
8863 	cbp->cb_count++;
8864 
8865 	/*
8866 	 * If we were given 'zpool status -x', only report those pools with
8867 	 * problems.
8868 	 */
8869 	if (cbp->cb_explain &&
8870 	    (reason == ZPOOL_STATUS_OK ||
8871 	    reason == ZPOOL_STATUS_VERSION_OLDER ||
8872 	    reason == ZPOOL_STATUS_FEAT_DISABLED ||
8873 	    reason == ZPOOL_STATUS_COMPATIBILITY_ERR ||
8874 	    reason == ZPOOL_STATUS_INCOMPATIBLE_FEAT)) {
8875 		if (!cbp->cb_allpools) {
8876 			(void) printf(gettext("pool '%s' is healthy\n"),
8877 			    zpool_get_name(zhp));
8878 			if (cbp->cb_first)
8879 				cbp->cb_first = B_FALSE;
8880 		}
8881 		return (0);
8882 	}
8883 
8884 	if (cbp->cb_first)
8885 		cbp->cb_first = B_FALSE;
8886 	else
8887 		(void) printf("\n");
8888 
8889 	nvroot = fnvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE);
8890 	verify(nvlist_lookup_uint64_array(nvroot, ZPOOL_CONFIG_VDEV_STATS,
8891 	    (uint64_t **)&vs, &c) == 0);
8892 
8893 	health = zpool_get_state_str(zhp);
8894 
8895 	printf("  ");
8896 	printf_color(ANSI_BOLD, gettext("pool:"));
8897 	printf(" %s\n", zpool_get_name(zhp));
8898 	fputc(' ', stdout);
8899 	printf_color(ANSI_BOLD, gettext("state: "));
8900 
8901 	printf_color(health_str_to_color(health), "%s", health);
8902 
8903 	fputc('\n', stdout);
8904 
8905 	switch (reason) {
8906 	case ZPOOL_STATUS_MISSING_DEV_R:
8907 		printf_color(ANSI_BOLD, gettext("status: "));
8908 		printf_color(ANSI_YELLOW, gettext("One or more devices could "
8909 		    "not be opened.  Sufficient replicas exist for\n\tthe pool "
8910 		    "to continue functioning in a degraded state.\n"));
8911 		printf_color(ANSI_BOLD, gettext("action: "));
8912 		printf_color(ANSI_YELLOW, gettext("Attach the missing device "
8913 		    "and online it using 'zpool online'.\n"));
8914 		break;
8915 
8916 	case ZPOOL_STATUS_MISSING_DEV_NR:
8917 		printf_color(ANSI_BOLD, gettext("status: "));
8918 		printf_color(ANSI_YELLOW, gettext("One or more devices could "
8919 		    "not be opened.  There are insufficient\n\treplicas for the"
8920 		    " pool to continue functioning.\n"));
8921 		printf_color(ANSI_BOLD, gettext("action: "));
8922 		printf_color(ANSI_YELLOW, gettext("Attach the missing device "
8923 		    "and online it using 'zpool online'.\n"));
8924 		break;
8925 
8926 	case ZPOOL_STATUS_CORRUPT_LABEL_R:
8927 		printf_color(ANSI_BOLD, gettext("status: "));
8928 		printf_color(ANSI_YELLOW, gettext("One or more devices could "
8929 		    "not be used because the label is missing or\n\tinvalid.  "
8930 		    "Sufficient replicas exist for the pool to continue\n\t"
8931 		    "functioning in a degraded state.\n"));
8932 		printf_color(ANSI_BOLD, gettext("action: "));
8933 		printf_color(ANSI_YELLOW, gettext("Replace the device using "
8934 		    "'zpool replace'.\n"));
8935 		break;
8936 
8937 	case ZPOOL_STATUS_CORRUPT_LABEL_NR:
8938 		printf_color(ANSI_BOLD, gettext("status: "));
8939 		printf_color(ANSI_YELLOW, gettext("One or more devices could "
8940 		    "not be used because the label is missing \n\tor invalid.  "
8941 		    "There are insufficient replicas for the pool to "
8942 		    "continue\n\tfunctioning.\n"));
8943 		zpool_explain_recover(zpool_get_handle(zhp),
8944 		    zpool_get_name(zhp), reason, config);
8945 		break;
8946 
8947 	case ZPOOL_STATUS_FAILING_DEV:
8948 		printf_color(ANSI_BOLD, gettext("status: "));
8949 		printf_color(ANSI_YELLOW, gettext("One or more devices has "
8950 		    "experienced an unrecoverable error.  An\n\tattempt was "
8951 		    "made to correct the error.  Applications are "
8952 		    "unaffected.\n"));
8953 		printf_color(ANSI_BOLD, gettext("action: "));
8954 			printf_color(ANSI_YELLOW, gettext("Determine if the "
8955 		    "device needs to be replaced, and clear the errors\n\tusing"
8956 		    " 'zpool clear' or replace the device with 'zpool "
8957 		    "replace'.\n"));
8958 		break;
8959 
8960 	case ZPOOL_STATUS_OFFLINE_DEV:
8961 		printf_color(ANSI_BOLD, gettext("status: "));
8962 		printf_color(ANSI_YELLOW, gettext("One or more devices has "
8963 		    "been taken offline by the administrator.\n\tSufficient "
8964 		    "replicas exist for the pool to continue functioning in "
8965 		    "a\n\tdegraded state.\n"));
8966 		printf_color(ANSI_BOLD, gettext("action: "));
8967 		printf_color(ANSI_YELLOW, gettext("Online the device "
8968 		    "using 'zpool online' or replace the device with\n\t'zpool "
8969 		    "replace'.\n"));
8970 		break;
8971 
8972 	case ZPOOL_STATUS_REMOVED_DEV:
8973 		printf_color(ANSI_BOLD, gettext("status: "));
8974 		printf_color(ANSI_YELLOW, gettext("One or more devices has "
8975 		    "been removed by the administrator.\n\tSufficient "
8976 		    "replicas exist for the pool to continue functioning in "
8977 		    "a\n\tdegraded state.\n"));
8978 		printf_color(ANSI_BOLD, gettext("action: "));
8979 		printf_color(ANSI_YELLOW, gettext("Online the device "
8980 		    "using zpool online' or replace the device with\n\t'zpool "
8981 		    "replace'.\n"));
8982 		break;
8983 
8984 	case ZPOOL_STATUS_RESILVERING:
8985 	case ZPOOL_STATUS_REBUILDING:
8986 		printf_color(ANSI_BOLD, gettext("status: "));
8987 		printf_color(ANSI_YELLOW, gettext("One or more devices is "
8988 		    "currently being resilvered.  The pool will\n\tcontinue "
8989 		    "to function, possibly in a degraded state.\n"));
8990 		printf_color(ANSI_BOLD, gettext("action: "));
8991 		printf_color(ANSI_YELLOW, gettext("Wait for the resilver to "
8992 		    "complete.\n"));
8993 		break;
8994 
8995 	case ZPOOL_STATUS_REBUILD_SCRUB:
8996 		printf_color(ANSI_BOLD, gettext("status: "));
8997 		printf_color(ANSI_YELLOW, gettext("One or more devices have "
8998 		    "been sequentially resilvered, scrubbing\n\tthe pool "
8999 		    "is recommended.\n"));
9000 		printf_color(ANSI_BOLD, gettext("action: "));
9001 		printf_color(ANSI_YELLOW, gettext("Use 'zpool scrub' to "
9002 		    "verify all data checksums.\n"));
9003 		break;
9004 
9005 	case ZPOOL_STATUS_CORRUPT_DATA:
9006 		printf_color(ANSI_BOLD, gettext("status: "));
9007 		printf_color(ANSI_YELLOW, gettext("One or more devices has "
9008 		    "experienced an error resulting in data\n\tcorruption.  "
9009 		    "Applications may be affected.\n"));
9010 		printf_color(ANSI_BOLD, gettext("action: "));
9011 		printf_color(ANSI_YELLOW, gettext("Restore the file in question"
9012 		    " if possible.  Otherwise restore the\n\tentire pool from "
9013 		    "backup.\n"));
9014 		break;
9015 
9016 	case ZPOOL_STATUS_CORRUPT_POOL:
9017 		printf_color(ANSI_BOLD, gettext("status: "));
9018 		printf_color(ANSI_YELLOW, gettext("The pool metadata is "
9019 		    "corrupted and the pool cannot be opened.\n"));
9020 		zpool_explain_recover(zpool_get_handle(zhp),
9021 		    zpool_get_name(zhp), reason, config);
9022 		break;
9023 
9024 	case ZPOOL_STATUS_VERSION_OLDER:
9025 		printf_color(ANSI_BOLD, gettext("status: "));
9026 		printf_color(ANSI_YELLOW, gettext("The pool is formatted using "
9027 		    "a legacy on-disk format.  The pool can\n\tstill be used, "
9028 		    "but some features are unavailable.\n"));
9029 		printf_color(ANSI_BOLD, gettext("action: "));
9030 		printf_color(ANSI_YELLOW, gettext("Upgrade the pool using "
9031 		    "'zpool upgrade'.  Once this is done, the\n\tpool will no "
9032 		    "longer be accessible on software that does not support\n\t"
9033 		    "feature flags.\n"));
9034 		break;
9035 
9036 	case ZPOOL_STATUS_VERSION_NEWER:
9037 		printf_color(ANSI_BOLD, gettext("status: "));
9038 		printf_color(ANSI_YELLOW, gettext("The pool has been upgraded "
9039 		    "to a newer, incompatible on-disk version.\n\tThe pool "
9040 		    "cannot be accessed on this system.\n"));
9041 		printf_color(ANSI_BOLD, gettext("action: "));
9042 		printf_color(ANSI_YELLOW, gettext("Access the pool from a "
9043 		    "system running more recent software, or\n\trestore the "
9044 		    "pool from backup.\n"));
9045 		break;
9046 
9047 	case ZPOOL_STATUS_FEAT_DISABLED:
9048 		printf_color(ANSI_BOLD, gettext("status: "));
9049 		printf_color(ANSI_YELLOW, gettext("Some supported and "
9050 		    "requested features are not enabled on the pool.\n\t"
9051 		    "The pool can still be used, but some features are "
9052 		    "unavailable.\n"));
9053 		printf_color(ANSI_BOLD, gettext("action: "));
9054 		printf_color(ANSI_YELLOW, gettext("Enable all features using "
9055 		    "'zpool upgrade'. Once this is done,\n\tthe pool may no "
9056 		    "longer be accessible by software that does not support\n\t"
9057 		    "the features. See zpool-features(7) for details.\n"));
9058 		break;
9059 
9060 	case ZPOOL_STATUS_COMPATIBILITY_ERR:
9061 		printf_color(ANSI_BOLD, gettext("status: "));
9062 		printf_color(ANSI_YELLOW, gettext("This pool has a "
9063 		    "compatibility list specified, but it could not be\n\t"
9064 		    "read/parsed at this time. The pool can still be used, "
9065 		    "but this\n\tshould be investigated.\n"));
9066 		printf_color(ANSI_BOLD, gettext("action: "));
9067 		printf_color(ANSI_YELLOW, gettext("Check the value of the "
9068 		    "'compatibility' property against the\n\t"
9069 		    "appropriate file in " ZPOOL_SYSCONF_COMPAT_D " or "
9070 		    ZPOOL_DATA_COMPAT_D ".\n"));
9071 		break;
9072 
9073 	case ZPOOL_STATUS_INCOMPATIBLE_FEAT:
9074 		printf_color(ANSI_BOLD, gettext("status: "));
9075 		printf_color(ANSI_YELLOW, gettext("One or more features "
9076 		    "are enabled on the pool despite not being\n\t"
9077 		    "requested by the 'compatibility' property.\n"));
9078 		printf_color(ANSI_BOLD, gettext("action: "));
9079 		printf_color(ANSI_YELLOW, gettext("Consider setting "
9080 		    "'compatibility' to an appropriate value, or\n\t"
9081 		    "adding needed features to the relevant file in\n\t"
9082 		    ZPOOL_SYSCONF_COMPAT_D " or " ZPOOL_DATA_COMPAT_D ".\n"));
9083 		break;
9084 
9085 	case ZPOOL_STATUS_UNSUP_FEAT_READ:
9086 		printf_color(ANSI_BOLD, gettext("status: "));
9087 		printf_color(ANSI_YELLOW, gettext("The pool cannot be accessed "
9088 		    "on this system because it uses the\n\tfollowing feature(s)"
9089 		    " not supported on this system:\n"));
9090 		zpool_print_unsup_feat(config);
9091 		(void) printf("\n");
9092 		printf_color(ANSI_BOLD, gettext("action: "));
9093 		printf_color(ANSI_YELLOW, gettext("Access the pool from a "
9094 		    "system that supports the required feature(s),\n\tor "
9095 		    "restore the pool from backup.\n"));
9096 		break;
9097 
9098 	case ZPOOL_STATUS_UNSUP_FEAT_WRITE:
9099 		printf_color(ANSI_BOLD, gettext("status: "));
9100 		printf_color(ANSI_YELLOW, gettext("The pool can only be "
9101 		    "accessed in read-only mode on this system. It\n\tcannot be"
9102 		    " accessed in read-write mode because it uses the "
9103 		    "following\n\tfeature(s) not supported on this system:\n"));
9104 		zpool_print_unsup_feat(config);
9105 		(void) printf("\n");
9106 		printf_color(ANSI_BOLD, gettext("action: "));
9107 		printf_color(ANSI_YELLOW, gettext("The pool cannot be accessed "
9108 		    "in read-write mode. Import the pool with\n"
9109 		    "\t\"-o readonly=on\", access the pool from a system that "
9110 		    "supports the\n\trequired feature(s), or restore the "
9111 		    "pool from backup.\n"));
9112 		break;
9113 
9114 	case ZPOOL_STATUS_FAULTED_DEV_R:
9115 		printf_color(ANSI_BOLD, gettext("status: "));
9116 		printf_color(ANSI_YELLOW, gettext("One or more devices are "
9117 		    "faulted in response to persistent errors.\n\tSufficient "
9118 		    "replicas exist for the pool to continue functioning "
9119 		    "in a\n\tdegraded state.\n"));
9120 		printf_color(ANSI_BOLD, gettext("action: "));
9121 		printf_color(ANSI_YELLOW, gettext("Replace the faulted device, "
9122 		    "or use 'zpool clear' to mark the device\n\trepaired.\n"));
9123 		break;
9124 
9125 	case ZPOOL_STATUS_FAULTED_DEV_NR:
9126 		printf_color(ANSI_BOLD, gettext("status: "));
9127 		printf_color(ANSI_YELLOW, gettext("One or more devices are "
9128 		    "faulted in response to persistent errors.  There are "
9129 		    "insufficient replicas for the pool to\n\tcontinue "
9130 		    "functioning.\n"));
9131 		printf_color(ANSI_BOLD, gettext("action: "));
9132 		printf_color(ANSI_YELLOW, gettext("Destroy and re-create the "
9133 		    "pool from a backup source.  Manually marking the device\n"
9134 		    "\trepaired using 'zpool clear' may allow some data "
9135 		    "to be recovered.\n"));
9136 		break;
9137 
9138 	case ZPOOL_STATUS_IO_FAILURE_MMP:
9139 		printf_color(ANSI_BOLD, gettext("status: "));
9140 		printf_color(ANSI_YELLOW, gettext("The pool is suspended "
9141 		    "because multihost writes failed or were delayed;\n\t"
9142 		    "another system could import the pool undetected.\n"));
9143 		printf_color(ANSI_BOLD, gettext("action: "));
9144 		printf_color(ANSI_YELLOW, gettext("Make sure the pool's devices"
9145 		    " are connected, then reboot your system and\n\timport the "
9146 		    "pool or run 'zpool clear' to resume the pool.\n"));
9147 		break;
9148 
9149 	case ZPOOL_STATUS_IO_FAILURE_WAIT:
9150 	case ZPOOL_STATUS_IO_FAILURE_CONTINUE:
9151 		printf_color(ANSI_BOLD, gettext("status: "));
9152 		printf_color(ANSI_YELLOW, gettext("One or more devices are "
9153 		    "faulted in response to IO failures.\n"));
9154 		printf_color(ANSI_BOLD, gettext("action: "));
9155 		printf_color(ANSI_YELLOW, gettext("Make sure the affected "
9156 		    "devices are connected, then run 'zpool clear'.\n"));
9157 		break;
9158 
9159 	case ZPOOL_STATUS_BAD_LOG:
9160 		printf_color(ANSI_BOLD, gettext("status: "));
9161 		printf_color(ANSI_YELLOW, gettext("An intent log record "
9162 		    "could not be read.\n"
9163 		    "\tWaiting for administrator intervention to fix the "
9164 		    "faulted pool.\n"));
9165 		printf_color(ANSI_BOLD, gettext("action: "));
9166 		printf_color(ANSI_YELLOW, gettext("Either restore the affected "
9167 		    "device(s) and run 'zpool online',\n"
9168 		    "\tor ignore the intent log records by running "
9169 		    "'zpool clear'.\n"));
9170 		break;
9171 
9172 	case ZPOOL_STATUS_NON_NATIVE_ASHIFT:
9173 		(void) printf(gettext("status: One or more devices are "
9174 		    "configured to use a non-native block size.\n"
9175 		    "\tExpect reduced performance.\n"));
9176 		(void) printf(gettext("action: Replace affected devices with "
9177 		    "devices that support the\n\tconfigured block size, or "
9178 		    "migrate data to a properly configured\n\tpool.\n"));
9179 		break;
9180 
9181 	case ZPOOL_STATUS_HOSTID_MISMATCH:
9182 		printf_color(ANSI_BOLD, gettext("status: "));
9183 		printf_color(ANSI_YELLOW, gettext("Mismatch between pool hostid"
9184 		    " and system hostid on imported pool.\n\tThis pool was "
9185 		    "previously imported into a system with a different "
9186 		    "hostid,\n\tand then was verbatim imported into this "
9187 		    "system.\n"));
9188 		printf_color(ANSI_BOLD, gettext("action: "));
9189 		printf_color(ANSI_YELLOW, gettext("Export this pool on all "
9190 		    "systems on which it is imported.\n"
9191 		    "\tThen import it to correct the mismatch.\n"));
9192 		break;
9193 
9194 	case ZPOOL_STATUS_ERRATA:
9195 		printf_color(ANSI_BOLD, gettext("status: "));
9196 		printf_color(ANSI_YELLOW, gettext("Errata #%d detected.\n"),
9197 		    errata);
9198 
9199 		switch (errata) {
9200 		case ZPOOL_ERRATA_NONE:
9201 			break;
9202 
9203 		case ZPOOL_ERRATA_ZOL_2094_SCRUB:
9204 			printf_color(ANSI_BOLD, gettext("action: "));
9205 			printf_color(ANSI_YELLOW, gettext("To correct the issue"
9206 			    " run 'zpool scrub'.\n"));
9207 			break;
9208 
9209 		case ZPOOL_ERRATA_ZOL_6845_ENCRYPTION:
9210 			(void) printf(gettext("\tExisting encrypted datasets "
9211 			    "contain an on-disk incompatibility\n\twhich "
9212 			    "needs to be corrected.\n"));
9213 			printf_color(ANSI_BOLD, gettext("action: "));
9214 			printf_color(ANSI_YELLOW, gettext("To correct the issue"
9215 			    " backup existing encrypted datasets to new\n\t"
9216 			    "encrypted datasets and destroy the old ones. "
9217 			    "'zfs mount -o ro' can\n\tbe used to temporarily "
9218 			    "mount existing encrypted datasets readonly.\n"));
9219 			break;
9220 
9221 		case ZPOOL_ERRATA_ZOL_8308_ENCRYPTION:
9222 			(void) printf(gettext("\tExisting encrypted snapshots "
9223 			    "and bookmarks contain an on-disk\n\tincompat"
9224 			    "ibility. This may cause on-disk corruption if "
9225 			    "they are used\n\twith 'zfs recv'.\n"));
9226 			printf_color(ANSI_BOLD, gettext("action: "));
9227 			printf_color(ANSI_YELLOW, gettext("To correct the"
9228 			    "issue, enable the bookmark_v2 feature. No "
9229 			    "additional\n\taction is needed if there are no "
9230 			    "encrypted snapshots or bookmarks.\n\tIf preserving"
9231 			    "the encrypted snapshots and bookmarks is required,"
9232 			    " use\n\ta non-raw send to backup and restore them."
9233 			    " Alternately, they may be\n\tremoved to resolve "
9234 			    "the incompatibility.\n"));
9235 			break;
9236 
9237 		default:
9238 			/*
9239 			 * All errata which allow the pool to be imported
9240 			 * must contain an action message.
9241 			 */
9242 			assert(0);
9243 		}
9244 		break;
9245 
9246 	default:
9247 		/*
9248 		 * The remaining errors can't actually be generated, yet.
9249 		 */
9250 		assert(reason == ZPOOL_STATUS_OK);
9251 	}
9252 
9253 	if (msgid != NULL) {
9254 		printf("   ");
9255 		printf_color(ANSI_BOLD, gettext("see:"));
9256 		printf(gettext(
9257 		    " https://openzfs.github.io/openzfs-docs/msg/%s\n"),
9258 		    msgid);
9259 	}
9260 
9261 	if (config != NULL) {
9262 		uint64_t nerr;
9263 		nvlist_t **spares, **l2cache;
9264 		uint_t nspares, nl2cache;
9265 
9266 		print_scan_status(zhp, nvroot);
9267 
9268 		pool_removal_stat_t *prs = NULL;
9269 		(void) nvlist_lookup_uint64_array(nvroot,
9270 		    ZPOOL_CONFIG_REMOVAL_STATS, (uint64_t **)&prs, &c);
9271 		print_removal_status(zhp, prs);
9272 
9273 		pool_checkpoint_stat_t *pcs = NULL;
9274 		(void) nvlist_lookup_uint64_array(nvroot,
9275 		    ZPOOL_CONFIG_CHECKPOINT_STATS, (uint64_t **)&pcs, &c);
9276 		print_checkpoint_status(pcs);
9277 
9278 		pool_raidz_expand_stat_t *pres = NULL;
9279 		(void) nvlist_lookup_uint64_array(nvroot,
9280 		    ZPOOL_CONFIG_RAIDZ_EXPAND_STATS, (uint64_t **)&pres, &c);
9281 		print_raidz_expand_status(zhp, pres);
9282 
9283 		cbp->cb_namewidth = max_width(zhp, nvroot, 0, 0,
9284 		    cbp->cb_name_flags | VDEV_NAME_TYPE_ID);
9285 		if (cbp->cb_namewidth < 10)
9286 			cbp->cb_namewidth = 10;
9287 
9288 		color_start(ANSI_BOLD);
9289 		(void) printf(gettext("config:\n\n"));
9290 		(void) printf(gettext("\t%-*s  %-8s %5s %5s %5s"),
9291 		    cbp->cb_namewidth, "NAME", "STATE", "READ", "WRITE",
9292 		    "CKSUM");
9293 		color_end();
9294 
9295 		if (cbp->cb_print_slow_ios) {
9296 			printf_color(ANSI_BOLD, " %5s", gettext("SLOW"));
9297 		}
9298 
9299 		if (cbp->cb_print_power) {
9300 			printf_color(ANSI_BOLD, " %5s", gettext("POWER"));
9301 		}
9302 
9303 		if (cbp->vcdl != NULL)
9304 			print_cmd_columns(cbp->vcdl, 0);
9305 
9306 		printf("\n");
9307 
9308 		print_status_config(zhp, cbp, zpool_get_name(zhp), nvroot, 0,
9309 		    B_FALSE, NULL);
9310 
9311 		print_class_vdevs(zhp, cbp, nvroot, VDEV_ALLOC_BIAS_DEDUP);
9312 		print_class_vdevs(zhp, cbp, nvroot, VDEV_ALLOC_BIAS_SPECIAL);
9313 		print_class_vdevs(zhp, cbp, nvroot, VDEV_ALLOC_CLASS_LOGS);
9314 
9315 		if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_L2CACHE,
9316 		    &l2cache, &nl2cache) == 0)
9317 			print_l2cache(zhp, cbp, l2cache, nl2cache);
9318 
9319 		if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES,
9320 		    &spares, &nspares) == 0)
9321 			print_spares(zhp, cbp, spares, nspares);
9322 
9323 		if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_ERRCOUNT,
9324 		    &nerr) == 0) {
9325 			(void) printf("\n");
9326 			if (nerr == 0) {
9327 				(void) printf(gettext(
9328 				    "errors: No known data errors\n"));
9329 			} else if (!cbp->cb_verbose) {
9330 				color_start(ANSI_RED);
9331 				(void) printf(gettext("errors: %llu data "
9332 				    "errors, use '-v' for a list\n"),
9333 				    (u_longlong_t)nerr);
9334 				color_end();
9335 			} else {
9336 				print_error_log(zhp);
9337 			}
9338 		}
9339 
9340 		if (cbp->cb_dedup_stats)
9341 			print_dedup_stats(config);
9342 	} else {
9343 		(void) printf(gettext("config: The configuration cannot be "
9344 		    "determined.\n"));
9345 	}
9346 
9347 	return (0);
9348 }
9349 
9350 /*
9351  * zpool status [-c [script1,script2,...]] [-DegiLpPstvx] [--power] [-T d|u] ...
9352  *              [pool] [interval [count]]
9353  *
9354  *	-c CMD	For each vdev, run command CMD
9355  *	-D	Display dedup status (undocumented)
9356  *	-e	Display only unhealthy vdevs
9357  *	-g	Display guid for individual vdev name.
9358  *	-i	Display vdev initialization status.
9359  *	-L	Follow links when resolving vdev path name.
9360  *	-p	Display values in parsable (exact) format.
9361  *	-P	Display full path for vdev name.
9362  *	-s	Display slow IOs column.
9363  *	-t	Display vdev TRIM status.
9364  *	-T	Display a timestamp in date(1) or Unix format
9365  *	-v	Display complete error logs
9366  *	-x	Display only pools with potential problems
9367  *	--power	Display vdev enclosure slot power status
9368  *
9369  * Describes the health status of all pools or some subset.
9370  */
9371 int
9372 zpool_do_status(int argc, char **argv)
9373 {
9374 	int c;
9375 	int ret;
9376 	float interval = 0;
9377 	unsigned long count = 0;
9378 	status_cbdata_t cb = { 0 };
9379 	char *cmd = NULL;
9380 
9381 	struct option long_options[] = {
9382 		{"power", no_argument, NULL, ZPOOL_OPTION_POWER},
9383 		{0, 0, 0, 0}
9384 	};
9385 
9386 	/* check options */
9387 	while ((c = getopt_long(argc, argv, "c:DegiLpPstT:vx", long_options,
9388 	    NULL)) != -1) {
9389 		switch (c) {
9390 		case 'c':
9391 			if (cmd != NULL) {
9392 				fprintf(stderr,
9393 				    gettext("Can't set -c flag twice\n"));
9394 				exit(1);
9395 			}
9396 
9397 			if (getenv("ZPOOL_SCRIPTS_ENABLED") != NULL &&
9398 			    !libzfs_envvar_is_set("ZPOOL_SCRIPTS_ENABLED")) {
9399 				fprintf(stderr, gettext(
9400 				    "Can't run -c, disabled by "
9401 				    "ZPOOL_SCRIPTS_ENABLED.\n"));
9402 				exit(1);
9403 			}
9404 
9405 			if ((getuid() <= 0 || geteuid() <= 0) &&
9406 			    !libzfs_envvar_is_set("ZPOOL_SCRIPTS_AS_ROOT")) {
9407 				fprintf(stderr, gettext(
9408 				    "Can't run -c with root privileges "
9409 				    "unless ZPOOL_SCRIPTS_AS_ROOT is set.\n"));
9410 				exit(1);
9411 			}
9412 			cmd = optarg;
9413 			break;
9414 		case 'D':
9415 			cb.cb_dedup_stats = B_TRUE;
9416 			break;
9417 		case 'e':
9418 			cb.cb_print_unhealthy = B_TRUE;
9419 			break;
9420 		case 'g':
9421 			cb.cb_name_flags |= VDEV_NAME_GUID;
9422 			break;
9423 		case 'i':
9424 			cb.cb_print_vdev_init = B_TRUE;
9425 			break;
9426 		case 'L':
9427 			cb.cb_name_flags |= VDEV_NAME_FOLLOW_LINKS;
9428 			break;
9429 		case 'p':
9430 			cb.cb_literal = B_TRUE;
9431 			break;
9432 		case 'P':
9433 			cb.cb_name_flags |= VDEV_NAME_PATH;
9434 			break;
9435 		case 's':
9436 			cb.cb_print_slow_ios = B_TRUE;
9437 			break;
9438 		case 't':
9439 			cb.cb_print_vdev_trim = B_TRUE;
9440 			break;
9441 		case 'T':
9442 			get_timestamp_arg(*optarg);
9443 			break;
9444 		case 'v':
9445 			cb.cb_verbose = B_TRUE;
9446 			break;
9447 		case 'x':
9448 			cb.cb_explain = B_TRUE;
9449 			break;
9450 		case ZPOOL_OPTION_POWER:
9451 			cb.cb_print_power = B_TRUE;
9452 			break;
9453 		case '?':
9454 			if (optopt == 'c') {
9455 				print_zpool_script_list("status");
9456 				exit(0);
9457 			} else {
9458 				fprintf(stderr,
9459 				    gettext("invalid option '%c'\n"), optopt);
9460 			}
9461 			usage(B_FALSE);
9462 		}
9463 	}
9464 
9465 	argc -= optind;
9466 	argv += optind;
9467 
9468 	get_interval_count(&argc, argv, &interval, &count);
9469 
9470 	if (argc == 0)
9471 		cb.cb_allpools = B_TRUE;
9472 
9473 	cb.cb_first = B_TRUE;
9474 	cb.cb_print_status = B_TRUE;
9475 
9476 	for (;;) {
9477 		if (timestamp_fmt != NODATE)
9478 			print_timestamp(timestamp_fmt);
9479 
9480 		if (cmd != NULL)
9481 			cb.vcdl = all_pools_for_each_vdev_run(argc, argv, cmd,
9482 			    NULL, NULL, 0, 0);
9483 
9484 		ret = for_each_pool(argc, argv, B_TRUE, NULL, ZFS_TYPE_POOL,
9485 		    cb.cb_literal, status_callback, &cb);
9486 
9487 		if (cb.vcdl != NULL)
9488 			free_vdev_cmd_data_list(cb.vcdl);
9489 		if (argc == 0 && cb.cb_count == 0)
9490 			(void) fprintf(stderr, gettext("no pools available\n"));
9491 		else if (cb.cb_explain && cb.cb_first && cb.cb_allpools)
9492 			(void) printf(gettext("all pools are healthy\n"));
9493 
9494 		if (ret != 0)
9495 			return (ret);
9496 
9497 		if (interval == 0)
9498 			break;
9499 
9500 		if (count != 0 && --count == 0)
9501 			break;
9502 
9503 		(void) fflush(stdout);
9504 		(void) fsleep(interval);
9505 	}
9506 
9507 	return (0);
9508 }
9509 
9510 typedef struct upgrade_cbdata {
9511 	int	cb_first;
9512 	int	cb_argc;
9513 	uint64_t cb_version;
9514 	char	**cb_argv;
9515 } upgrade_cbdata_t;
9516 
9517 static int
9518 check_unsupp_fs(zfs_handle_t *zhp, void *unsupp_fs)
9519 {
9520 	int zfs_version = (int)zfs_prop_get_int(zhp, ZFS_PROP_VERSION);
9521 	int *count = (int *)unsupp_fs;
9522 
9523 	if (zfs_version > ZPL_VERSION) {
9524 		(void) printf(gettext("%s (v%d) is not supported by this "
9525 		    "implementation of ZFS.\n"),
9526 		    zfs_get_name(zhp), zfs_version);
9527 		(*count)++;
9528 	}
9529 
9530 	zfs_iter_filesystems_v2(zhp, 0, check_unsupp_fs, unsupp_fs);
9531 
9532 	zfs_close(zhp);
9533 
9534 	return (0);
9535 }
9536 
9537 static int
9538 upgrade_version(zpool_handle_t *zhp, uint64_t version)
9539 {
9540 	int ret;
9541 	nvlist_t *config;
9542 	uint64_t oldversion;
9543 	int unsupp_fs = 0;
9544 
9545 	config = zpool_get_config(zhp, NULL);
9546 	verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION,
9547 	    &oldversion) == 0);
9548 
9549 	char compat[ZFS_MAXPROPLEN];
9550 	if (zpool_get_prop(zhp, ZPOOL_PROP_COMPATIBILITY, compat,
9551 	    ZFS_MAXPROPLEN, NULL, B_FALSE) != 0)
9552 		compat[0] = '\0';
9553 
9554 	assert(SPA_VERSION_IS_SUPPORTED(oldversion));
9555 	assert(oldversion < version);
9556 
9557 	ret = zfs_iter_root(zpool_get_handle(zhp), check_unsupp_fs, &unsupp_fs);
9558 	if (ret != 0)
9559 		return (ret);
9560 
9561 	if (unsupp_fs) {
9562 		(void) fprintf(stderr, gettext("Upgrade not performed due "
9563 		    "to %d unsupported filesystems (max v%d).\n"),
9564 		    unsupp_fs, (int)ZPL_VERSION);
9565 		return (1);
9566 	}
9567 
9568 	if (strcmp(compat, ZPOOL_COMPAT_LEGACY) == 0) {
9569 		(void) fprintf(stderr, gettext("Upgrade not performed because "
9570 		    "'compatibility' property set to '"
9571 		    ZPOOL_COMPAT_LEGACY "'.\n"));
9572 		return (1);
9573 	}
9574 
9575 	ret = zpool_upgrade(zhp, version);
9576 	if (ret != 0)
9577 		return (ret);
9578 
9579 	if (version >= SPA_VERSION_FEATURES) {
9580 		(void) printf(gettext("Successfully upgraded "
9581 		    "'%s' from version %llu to feature flags.\n"),
9582 		    zpool_get_name(zhp), (u_longlong_t)oldversion);
9583 	} else {
9584 		(void) printf(gettext("Successfully upgraded "
9585 		    "'%s' from version %llu to version %llu.\n"),
9586 		    zpool_get_name(zhp), (u_longlong_t)oldversion,
9587 		    (u_longlong_t)version);
9588 	}
9589 
9590 	return (0);
9591 }
9592 
9593 static int
9594 upgrade_enable_all(zpool_handle_t *zhp, int *countp)
9595 {
9596 	int i, ret, count;
9597 	boolean_t firstff = B_TRUE;
9598 	nvlist_t *enabled = zpool_get_features(zhp);
9599 
9600 	char compat[ZFS_MAXPROPLEN];
9601 	if (zpool_get_prop(zhp, ZPOOL_PROP_COMPATIBILITY, compat,
9602 	    ZFS_MAXPROPLEN, NULL, B_FALSE) != 0)
9603 		compat[0] = '\0';
9604 
9605 	boolean_t requested_features[SPA_FEATURES];
9606 	if (zpool_do_load_compat(compat, requested_features) !=
9607 	    ZPOOL_COMPATIBILITY_OK)
9608 		return (-1);
9609 
9610 	count = 0;
9611 	for (i = 0; i < SPA_FEATURES; i++) {
9612 		const char *fname = spa_feature_table[i].fi_uname;
9613 		const char *fguid = spa_feature_table[i].fi_guid;
9614 
9615 		if (!spa_feature_table[i].fi_zfs_mod_supported)
9616 			continue;
9617 
9618 		if (!nvlist_exists(enabled, fguid) && requested_features[i]) {
9619 			char *propname;
9620 			verify(-1 != asprintf(&propname, "feature@%s", fname));
9621 			ret = zpool_set_prop(zhp, propname,
9622 			    ZFS_FEATURE_ENABLED);
9623 			if (ret != 0) {
9624 				free(propname);
9625 				return (ret);
9626 			}
9627 			count++;
9628 
9629 			if (firstff) {
9630 				(void) printf(gettext("Enabled the "
9631 				    "following features on '%s':\n"),
9632 				    zpool_get_name(zhp));
9633 				firstff = B_FALSE;
9634 			}
9635 			(void) printf(gettext("  %s\n"), fname);
9636 			free(propname);
9637 		}
9638 	}
9639 
9640 	if (countp != NULL)
9641 		*countp = count;
9642 	return (0);
9643 }
9644 
9645 static int
9646 upgrade_cb(zpool_handle_t *zhp, void *arg)
9647 {
9648 	upgrade_cbdata_t *cbp = arg;
9649 	nvlist_t *config;
9650 	uint64_t version;
9651 	boolean_t modified_pool = B_FALSE;
9652 	int ret;
9653 
9654 	config = zpool_get_config(zhp, NULL);
9655 	verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION,
9656 	    &version) == 0);
9657 
9658 	assert(SPA_VERSION_IS_SUPPORTED(version));
9659 
9660 	if (version < cbp->cb_version) {
9661 		cbp->cb_first = B_FALSE;
9662 		ret = upgrade_version(zhp, cbp->cb_version);
9663 		if (ret != 0)
9664 			return (ret);
9665 		modified_pool = B_TRUE;
9666 
9667 		/*
9668 		 * If they did "zpool upgrade -a", then we could
9669 		 * be doing ioctls to different pools.  We need
9670 		 * to log this history once to each pool, and bypass
9671 		 * the normal history logging that happens in main().
9672 		 */
9673 		(void) zpool_log_history(g_zfs, history_str);
9674 		log_history = B_FALSE;
9675 	}
9676 
9677 	if (cbp->cb_version >= SPA_VERSION_FEATURES) {
9678 		int count;
9679 		ret = upgrade_enable_all(zhp, &count);
9680 		if (ret != 0)
9681 			return (ret);
9682 
9683 		if (count > 0) {
9684 			cbp->cb_first = B_FALSE;
9685 			modified_pool = B_TRUE;
9686 		}
9687 	}
9688 
9689 	if (modified_pool) {
9690 		(void) printf("\n");
9691 		(void) after_zpool_upgrade(zhp);
9692 	}
9693 
9694 	return (0);
9695 }
9696 
9697 static int
9698 upgrade_list_older_cb(zpool_handle_t *zhp, void *arg)
9699 {
9700 	upgrade_cbdata_t *cbp = arg;
9701 	nvlist_t *config;
9702 	uint64_t version;
9703 
9704 	config = zpool_get_config(zhp, NULL);
9705 	verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION,
9706 	    &version) == 0);
9707 
9708 	assert(SPA_VERSION_IS_SUPPORTED(version));
9709 
9710 	if (version < SPA_VERSION_FEATURES) {
9711 		if (cbp->cb_first) {
9712 			(void) printf(gettext("The following pools are "
9713 			    "formatted with legacy version numbers and can\n"
9714 			    "be upgraded to use feature flags.  After "
9715 			    "being upgraded, these pools\nwill no "
9716 			    "longer be accessible by software that does not "
9717 			    "support feature\nflags.\n\n"
9718 			    "Note that setting a pool's 'compatibility' "
9719 			    "feature to '" ZPOOL_COMPAT_LEGACY "' will\n"
9720 			    "inhibit upgrades.\n\n"));
9721 			(void) printf(gettext("VER  POOL\n"));
9722 			(void) printf(gettext("---  ------------\n"));
9723 			cbp->cb_first = B_FALSE;
9724 		}
9725 
9726 		(void) printf("%2llu   %s\n", (u_longlong_t)version,
9727 		    zpool_get_name(zhp));
9728 	}
9729 
9730 	return (0);
9731 }
9732 
9733 static int
9734 upgrade_list_disabled_cb(zpool_handle_t *zhp, void *arg)
9735 {
9736 	upgrade_cbdata_t *cbp = arg;
9737 	nvlist_t *config;
9738 	uint64_t version;
9739 
9740 	config = zpool_get_config(zhp, NULL);
9741 	verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION,
9742 	    &version) == 0);
9743 
9744 	if (version >= SPA_VERSION_FEATURES) {
9745 		int i;
9746 		boolean_t poolfirst = B_TRUE;
9747 		nvlist_t *enabled = zpool_get_features(zhp);
9748 
9749 		for (i = 0; i < SPA_FEATURES; i++) {
9750 			const char *fguid = spa_feature_table[i].fi_guid;
9751 			const char *fname = spa_feature_table[i].fi_uname;
9752 
9753 			if (!spa_feature_table[i].fi_zfs_mod_supported)
9754 				continue;
9755 
9756 			if (!nvlist_exists(enabled, fguid)) {
9757 				if (cbp->cb_first) {
9758 					(void) printf(gettext("\nSome "
9759 					    "supported features are not "
9760 					    "enabled on the following pools. "
9761 					    "Once a\nfeature is enabled the "
9762 					    "pool may become incompatible with "
9763 					    "software\nthat does not support "
9764 					    "the feature. See "
9765 					    "zpool-features(7) for "
9766 					    "details.\n\n"
9767 					    "Note that the pool "
9768 					    "'compatibility' feature can be "
9769 					    "used to inhibit\nfeature "
9770 					    "upgrades.\n\n"));
9771 					(void) printf(gettext("POOL  "
9772 					    "FEATURE\n"));
9773 					(void) printf(gettext("------"
9774 					    "---------\n"));
9775 					cbp->cb_first = B_FALSE;
9776 				}
9777 
9778 				if (poolfirst) {
9779 					(void) printf(gettext("%s\n"),
9780 					    zpool_get_name(zhp));
9781 					poolfirst = B_FALSE;
9782 				}
9783 
9784 				(void) printf(gettext("      %s\n"), fname);
9785 			}
9786 			/*
9787 			 * If they did "zpool upgrade -a", then we could
9788 			 * be doing ioctls to different pools.  We need
9789 			 * to log this history once to each pool, and bypass
9790 			 * the normal history logging that happens in main().
9791 			 */
9792 			(void) zpool_log_history(g_zfs, history_str);
9793 			log_history = B_FALSE;
9794 		}
9795 	}
9796 
9797 	return (0);
9798 }
9799 
9800 static int
9801 upgrade_one(zpool_handle_t *zhp, void *data)
9802 {
9803 	boolean_t modified_pool = B_FALSE;
9804 	upgrade_cbdata_t *cbp = data;
9805 	uint64_t cur_version;
9806 	int ret;
9807 
9808 	if (strcmp("log", zpool_get_name(zhp)) == 0) {
9809 		(void) fprintf(stderr, gettext("'log' is now a reserved word\n"
9810 		    "Pool 'log' must be renamed using export and import"
9811 		    " to upgrade.\n"));
9812 		return (1);
9813 	}
9814 
9815 	cur_version = zpool_get_prop_int(zhp, ZPOOL_PROP_VERSION, NULL);
9816 	if (cur_version > cbp->cb_version) {
9817 		(void) printf(gettext("Pool '%s' is already formatted "
9818 		    "using more current version '%llu'.\n\n"),
9819 		    zpool_get_name(zhp), (u_longlong_t)cur_version);
9820 		return (0);
9821 	}
9822 
9823 	if (cbp->cb_version != SPA_VERSION && cur_version == cbp->cb_version) {
9824 		(void) printf(gettext("Pool '%s' is already formatted "
9825 		    "using version %llu.\n\n"), zpool_get_name(zhp),
9826 		    (u_longlong_t)cbp->cb_version);
9827 		return (0);
9828 	}
9829 
9830 	if (cur_version != cbp->cb_version) {
9831 		modified_pool = B_TRUE;
9832 		ret = upgrade_version(zhp, cbp->cb_version);
9833 		if (ret != 0)
9834 			return (ret);
9835 	}
9836 
9837 	if (cbp->cb_version >= SPA_VERSION_FEATURES) {
9838 		int count = 0;
9839 		ret = upgrade_enable_all(zhp, &count);
9840 		if (ret != 0)
9841 			return (ret);
9842 
9843 		if (count != 0) {
9844 			modified_pool = B_TRUE;
9845 		} else if (cur_version == SPA_VERSION) {
9846 			(void) printf(gettext("Pool '%s' already has all "
9847 			    "supported and requested features enabled.\n"),
9848 			    zpool_get_name(zhp));
9849 		}
9850 	}
9851 
9852 	if (modified_pool) {
9853 		(void) printf("\n");
9854 		(void) after_zpool_upgrade(zhp);
9855 	}
9856 
9857 	return (0);
9858 }
9859 
9860 /*
9861  * zpool upgrade
9862  * zpool upgrade -v
9863  * zpool upgrade [-V version] <-a | pool ...>
9864  *
9865  * With no arguments, display downrev'd ZFS pool available for upgrade.
9866  * Individual pools can be upgraded by specifying the pool, and '-a' will
9867  * upgrade all pools.
9868  */
9869 int
9870 zpool_do_upgrade(int argc, char **argv)
9871 {
9872 	int c;
9873 	upgrade_cbdata_t cb = { 0 };
9874 	int ret = 0;
9875 	boolean_t showversions = B_FALSE;
9876 	boolean_t upgradeall = B_FALSE;
9877 	char *end;
9878 
9879 
9880 	/* check options */
9881 	while ((c = getopt(argc, argv, ":avV:")) != -1) {
9882 		switch (c) {
9883 		case 'a':
9884 			upgradeall = B_TRUE;
9885 			break;
9886 		case 'v':
9887 			showversions = B_TRUE;
9888 			break;
9889 		case 'V':
9890 			cb.cb_version = strtoll(optarg, &end, 10);
9891 			if (*end != '\0' ||
9892 			    !SPA_VERSION_IS_SUPPORTED(cb.cb_version)) {
9893 				(void) fprintf(stderr,
9894 				    gettext("invalid version '%s'\n"), optarg);
9895 				usage(B_FALSE);
9896 			}
9897 			break;
9898 		case ':':
9899 			(void) fprintf(stderr, gettext("missing argument for "
9900 			    "'%c' option\n"), optopt);
9901 			usage(B_FALSE);
9902 			break;
9903 		case '?':
9904 			(void) fprintf(stderr, gettext("invalid option '%c'\n"),
9905 			    optopt);
9906 			usage(B_FALSE);
9907 		}
9908 	}
9909 
9910 	cb.cb_argc = argc;
9911 	cb.cb_argv = argv;
9912 	argc -= optind;
9913 	argv += optind;
9914 
9915 	if (cb.cb_version == 0) {
9916 		cb.cb_version = SPA_VERSION;
9917 	} else if (!upgradeall && argc == 0) {
9918 		(void) fprintf(stderr, gettext("-V option is "
9919 		    "incompatible with other arguments\n"));
9920 		usage(B_FALSE);
9921 	}
9922 
9923 	if (showversions) {
9924 		if (upgradeall || argc != 0) {
9925 			(void) fprintf(stderr, gettext("-v option is "
9926 			    "incompatible with other arguments\n"));
9927 			usage(B_FALSE);
9928 		}
9929 	} else if (upgradeall) {
9930 		if (argc != 0) {
9931 			(void) fprintf(stderr, gettext("-a option should not "
9932 			    "be used along with a pool name\n"));
9933 			usage(B_FALSE);
9934 		}
9935 	}
9936 
9937 	(void) printf("%s", gettext("This system supports ZFS pool feature "
9938 	    "flags.\n\n"));
9939 	if (showversions) {
9940 		int i;
9941 
9942 		(void) printf(gettext("The following features are "
9943 		    "supported:\n\n"));
9944 		(void) printf(gettext("FEAT DESCRIPTION\n"));
9945 		(void) printf("----------------------------------------------"
9946 		    "---------------\n");
9947 		for (i = 0; i < SPA_FEATURES; i++) {
9948 			zfeature_info_t *fi = &spa_feature_table[i];
9949 			if (!fi->fi_zfs_mod_supported)
9950 				continue;
9951 			const char *ro =
9952 			    (fi->fi_flags & ZFEATURE_FLAG_READONLY_COMPAT) ?
9953 			    " (read-only compatible)" : "";
9954 
9955 			(void) printf("%-37s%s\n", fi->fi_uname, ro);
9956 			(void) printf("     %s\n", fi->fi_desc);
9957 		}
9958 		(void) printf("\n");
9959 
9960 		(void) printf(gettext("The following legacy versions are also "
9961 		    "supported:\n\n"));
9962 		(void) printf(gettext("VER  DESCRIPTION\n"));
9963 		(void) printf("---  -----------------------------------------"
9964 		    "---------------\n");
9965 		(void) printf(gettext(" 1   Initial ZFS version\n"));
9966 		(void) printf(gettext(" 2   Ditto blocks "
9967 		    "(replicated metadata)\n"));
9968 		(void) printf(gettext(" 3   Hot spares and double parity "
9969 		    "RAID-Z\n"));
9970 		(void) printf(gettext(" 4   zpool history\n"));
9971 		(void) printf(gettext(" 5   Compression using the gzip "
9972 		    "algorithm\n"));
9973 		(void) printf(gettext(" 6   bootfs pool property\n"));
9974 		(void) printf(gettext(" 7   Separate intent log devices\n"));
9975 		(void) printf(gettext(" 8   Delegated administration\n"));
9976 		(void) printf(gettext(" 9   refquota and refreservation "
9977 		    "properties\n"));
9978 		(void) printf(gettext(" 10  Cache devices\n"));
9979 		(void) printf(gettext(" 11  Improved scrub performance\n"));
9980 		(void) printf(gettext(" 12  Snapshot properties\n"));
9981 		(void) printf(gettext(" 13  snapused property\n"));
9982 		(void) printf(gettext(" 14  passthrough-x aclinherit\n"));
9983 		(void) printf(gettext(" 15  user/group space accounting\n"));
9984 		(void) printf(gettext(" 16  stmf property support\n"));
9985 		(void) printf(gettext(" 17  Triple-parity RAID-Z\n"));
9986 		(void) printf(gettext(" 18  Snapshot user holds\n"));
9987 		(void) printf(gettext(" 19  Log device removal\n"));
9988 		(void) printf(gettext(" 20  Compression using zle "
9989 		    "(zero-length encoding)\n"));
9990 		(void) printf(gettext(" 21  Deduplication\n"));
9991 		(void) printf(gettext(" 22  Received properties\n"));
9992 		(void) printf(gettext(" 23  Slim ZIL\n"));
9993 		(void) printf(gettext(" 24  System attributes\n"));
9994 		(void) printf(gettext(" 25  Improved scrub stats\n"));
9995 		(void) printf(gettext(" 26  Improved snapshot deletion "
9996 		    "performance\n"));
9997 		(void) printf(gettext(" 27  Improved snapshot creation "
9998 		    "performance\n"));
9999 		(void) printf(gettext(" 28  Multiple vdev replacements\n"));
10000 		(void) printf(gettext("\nFor more information on a particular "
10001 		    "version, including supported releases,\n"));
10002 		(void) printf(gettext("see the ZFS Administration Guide.\n\n"));
10003 	} else if (argc == 0 && upgradeall) {
10004 		cb.cb_first = B_TRUE;
10005 		ret = zpool_iter(g_zfs, upgrade_cb, &cb);
10006 		if (ret == 0 && cb.cb_first) {
10007 			if (cb.cb_version == SPA_VERSION) {
10008 				(void) printf(gettext("All pools are already "
10009 				    "formatted using feature flags.\n\n"));
10010 				(void) printf(gettext("Every feature flags "
10011 				    "pool already has all supported and "
10012 				    "requested features enabled.\n"));
10013 			} else {
10014 				(void) printf(gettext("All pools are already "
10015 				    "formatted with version %llu or higher.\n"),
10016 				    (u_longlong_t)cb.cb_version);
10017 			}
10018 		}
10019 	} else if (argc == 0) {
10020 		cb.cb_first = B_TRUE;
10021 		ret = zpool_iter(g_zfs, upgrade_list_older_cb, &cb);
10022 		assert(ret == 0);
10023 
10024 		if (cb.cb_first) {
10025 			(void) printf(gettext("All pools are formatted "
10026 			    "using feature flags.\n\n"));
10027 		} else {
10028 			(void) printf(gettext("\nUse 'zpool upgrade -v' "
10029 			    "for a list of available legacy versions.\n"));
10030 		}
10031 
10032 		cb.cb_first = B_TRUE;
10033 		ret = zpool_iter(g_zfs, upgrade_list_disabled_cb, &cb);
10034 		assert(ret == 0);
10035 
10036 		if (cb.cb_first) {
10037 			(void) printf(gettext("Every feature flags pool has "
10038 			    "all supported and requested features enabled.\n"));
10039 		} else {
10040 			(void) printf(gettext("\n"));
10041 		}
10042 	} else {
10043 		ret = for_each_pool(argc, argv, B_FALSE, NULL, ZFS_TYPE_POOL,
10044 		    B_FALSE, upgrade_one, &cb);
10045 	}
10046 
10047 	return (ret);
10048 }
10049 
10050 typedef struct hist_cbdata {
10051 	boolean_t first;
10052 	boolean_t longfmt;
10053 	boolean_t internal;
10054 } hist_cbdata_t;
10055 
10056 static void
10057 print_history_records(nvlist_t *nvhis, hist_cbdata_t *cb)
10058 {
10059 	nvlist_t **records;
10060 	uint_t numrecords;
10061 	int i;
10062 
10063 	verify(nvlist_lookup_nvlist_array(nvhis, ZPOOL_HIST_RECORD,
10064 	    &records, &numrecords) == 0);
10065 	for (i = 0; i < numrecords; i++) {
10066 		nvlist_t *rec = records[i];
10067 		char tbuf[64] = "";
10068 
10069 		if (nvlist_exists(rec, ZPOOL_HIST_TIME)) {
10070 			time_t tsec;
10071 			struct tm t;
10072 
10073 			tsec = fnvlist_lookup_uint64(records[i],
10074 			    ZPOOL_HIST_TIME);
10075 			(void) localtime_r(&tsec, &t);
10076 			(void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t);
10077 		}
10078 
10079 		if (nvlist_exists(rec, ZPOOL_HIST_ELAPSED_NS)) {
10080 			uint64_t elapsed_ns = fnvlist_lookup_int64(records[i],
10081 			    ZPOOL_HIST_ELAPSED_NS);
10082 			(void) snprintf(tbuf + strlen(tbuf),
10083 			    sizeof (tbuf) - strlen(tbuf),
10084 			    " (%lldms)", (long long)elapsed_ns / 1000 / 1000);
10085 		}
10086 
10087 		if (nvlist_exists(rec, ZPOOL_HIST_CMD)) {
10088 			(void) printf("%s %s", tbuf,
10089 			    fnvlist_lookup_string(rec, ZPOOL_HIST_CMD));
10090 		} else if (nvlist_exists(rec, ZPOOL_HIST_INT_EVENT)) {
10091 			int ievent =
10092 			    fnvlist_lookup_uint64(rec, ZPOOL_HIST_INT_EVENT);
10093 			if (!cb->internal)
10094 				continue;
10095 			if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS) {
10096 				(void) printf("%s unrecognized record:\n",
10097 				    tbuf);
10098 				dump_nvlist(rec, 4);
10099 				continue;
10100 			}
10101 			(void) printf("%s [internal %s txg:%lld] %s", tbuf,
10102 			    zfs_history_event_names[ievent],
10103 			    (longlong_t)fnvlist_lookup_uint64(
10104 			    rec, ZPOOL_HIST_TXG),
10105 			    fnvlist_lookup_string(rec, ZPOOL_HIST_INT_STR));
10106 		} else if (nvlist_exists(rec, ZPOOL_HIST_INT_NAME)) {
10107 			if (!cb->internal)
10108 				continue;
10109 			(void) printf("%s [txg:%lld] %s", tbuf,
10110 			    (longlong_t)fnvlist_lookup_uint64(
10111 			    rec, ZPOOL_HIST_TXG),
10112 			    fnvlist_lookup_string(rec, ZPOOL_HIST_INT_NAME));
10113 			if (nvlist_exists(rec, ZPOOL_HIST_DSNAME)) {
10114 				(void) printf(" %s (%llu)",
10115 				    fnvlist_lookup_string(rec,
10116 				    ZPOOL_HIST_DSNAME),
10117 				    (u_longlong_t)fnvlist_lookup_uint64(rec,
10118 				    ZPOOL_HIST_DSID));
10119 			}
10120 			(void) printf(" %s", fnvlist_lookup_string(rec,
10121 			    ZPOOL_HIST_INT_STR));
10122 		} else if (nvlist_exists(rec, ZPOOL_HIST_IOCTL)) {
10123 			if (!cb->internal)
10124 				continue;
10125 			(void) printf("%s ioctl %s\n", tbuf,
10126 			    fnvlist_lookup_string(rec, ZPOOL_HIST_IOCTL));
10127 			if (nvlist_exists(rec, ZPOOL_HIST_INPUT_NVL)) {
10128 				(void) printf("    input:\n");
10129 				dump_nvlist(fnvlist_lookup_nvlist(rec,
10130 				    ZPOOL_HIST_INPUT_NVL), 8);
10131 			}
10132 			if (nvlist_exists(rec, ZPOOL_HIST_OUTPUT_NVL)) {
10133 				(void) printf("    output:\n");
10134 				dump_nvlist(fnvlist_lookup_nvlist(rec,
10135 				    ZPOOL_HIST_OUTPUT_NVL), 8);
10136 			}
10137 			if (nvlist_exists(rec, ZPOOL_HIST_OUTPUT_SIZE)) {
10138 				(void) printf("    output nvlist omitted; "
10139 				    "original size: %lldKB\n",
10140 				    (longlong_t)fnvlist_lookup_int64(rec,
10141 				    ZPOOL_HIST_OUTPUT_SIZE) / 1024);
10142 			}
10143 			if (nvlist_exists(rec, ZPOOL_HIST_ERRNO)) {
10144 				(void) printf("    errno: %lld\n",
10145 				    (longlong_t)fnvlist_lookup_int64(rec,
10146 				    ZPOOL_HIST_ERRNO));
10147 			}
10148 		} else {
10149 			if (!cb->internal)
10150 				continue;
10151 			(void) printf("%s unrecognized record:\n", tbuf);
10152 			dump_nvlist(rec, 4);
10153 		}
10154 
10155 		if (!cb->longfmt) {
10156 			(void) printf("\n");
10157 			continue;
10158 		}
10159 		(void) printf(" [");
10160 		if (nvlist_exists(rec, ZPOOL_HIST_WHO)) {
10161 			uid_t who = fnvlist_lookup_uint64(rec, ZPOOL_HIST_WHO);
10162 			struct passwd *pwd = getpwuid(who);
10163 			(void) printf("user %d ", (int)who);
10164 			if (pwd != NULL)
10165 				(void) printf("(%s) ", pwd->pw_name);
10166 		}
10167 		if (nvlist_exists(rec, ZPOOL_HIST_HOST)) {
10168 			(void) printf("on %s",
10169 			    fnvlist_lookup_string(rec, ZPOOL_HIST_HOST));
10170 		}
10171 		if (nvlist_exists(rec, ZPOOL_HIST_ZONE)) {
10172 			(void) printf(":%s",
10173 			    fnvlist_lookup_string(rec, ZPOOL_HIST_ZONE));
10174 		}
10175 
10176 		(void) printf("]");
10177 		(void) printf("\n");
10178 	}
10179 }
10180 
10181 /*
10182  * Print out the command history for a specific pool.
10183  */
10184 static int
10185 get_history_one(zpool_handle_t *zhp, void *data)
10186 {
10187 	nvlist_t *nvhis;
10188 	int ret;
10189 	hist_cbdata_t *cb = (hist_cbdata_t *)data;
10190 	uint64_t off = 0;
10191 	boolean_t eof = B_FALSE;
10192 
10193 	cb->first = B_FALSE;
10194 
10195 	(void) printf(gettext("History for '%s':\n"), zpool_get_name(zhp));
10196 
10197 	while (!eof) {
10198 		if ((ret = zpool_get_history(zhp, &nvhis, &off, &eof)) != 0)
10199 			return (ret);
10200 
10201 		print_history_records(nvhis, cb);
10202 		nvlist_free(nvhis);
10203 	}
10204 	(void) printf("\n");
10205 
10206 	return (ret);
10207 }
10208 
10209 /*
10210  * zpool history <pool>
10211  *
10212  * Displays the history of commands that modified pools.
10213  */
10214 int
10215 zpool_do_history(int argc, char **argv)
10216 {
10217 	hist_cbdata_t cbdata = { 0 };
10218 	int ret;
10219 	int c;
10220 
10221 	cbdata.first = B_TRUE;
10222 	/* check options */
10223 	while ((c = getopt(argc, argv, "li")) != -1) {
10224 		switch (c) {
10225 		case 'l':
10226 			cbdata.longfmt = B_TRUE;
10227 			break;
10228 		case 'i':
10229 			cbdata.internal = B_TRUE;
10230 			break;
10231 		case '?':
10232 			(void) fprintf(stderr, gettext("invalid option '%c'\n"),
10233 			    optopt);
10234 			usage(B_FALSE);
10235 		}
10236 	}
10237 	argc -= optind;
10238 	argv += optind;
10239 
10240 	ret = for_each_pool(argc, argv, B_FALSE, NULL, ZFS_TYPE_POOL,
10241 	    B_FALSE, get_history_one, &cbdata);
10242 
10243 	if (argc == 0 && cbdata.first == B_TRUE) {
10244 		(void) fprintf(stderr, gettext("no pools available\n"));
10245 		return (0);
10246 	}
10247 
10248 	return (ret);
10249 }
10250 
10251 typedef struct ev_opts {
10252 	int verbose;
10253 	int scripted;
10254 	int follow;
10255 	int clear;
10256 	char poolname[ZFS_MAX_DATASET_NAME_LEN];
10257 } ev_opts_t;
10258 
10259 static void
10260 zpool_do_events_short(nvlist_t *nvl, ev_opts_t *opts)
10261 {
10262 	char ctime_str[26], str[32];
10263 	const char *ptr;
10264 	int64_t *tv;
10265 	uint_t n;
10266 
10267 	verify(nvlist_lookup_int64_array(nvl, FM_EREPORT_TIME, &tv, &n) == 0);
10268 	memset(str, ' ', 32);
10269 	(void) ctime_r((const time_t *)&tv[0], ctime_str);
10270 	(void) memcpy(str, ctime_str+4,  6);		/* 'Jun 30' */
10271 	(void) memcpy(str+7, ctime_str+20, 4);		/* '1993' */
10272 	(void) memcpy(str+12, ctime_str+11, 8);		/* '21:49:08' */
10273 	(void) sprintf(str+20, ".%09lld", (longlong_t)tv[1]); /* '.123456789' */
10274 	if (opts->scripted)
10275 		(void) printf(gettext("%s\t"), str);
10276 	else
10277 		(void) printf(gettext("%s "), str);
10278 
10279 	verify(nvlist_lookup_string(nvl, FM_CLASS, &ptr) == 0);
10280 	(void) printf(gettext("%s\n"), ptr);
10281 }
10282 
10283 static void
10284 zpool_do_events_nvprint(nvlist_t *nvl, int depth)
10285 {
10286 	nvpair_t *nvp;
10287 
10288 	for (nvp = nvlist_next_nvpair(nvl, NULL);
10289 	    nvp != NULL; nvp = nvlist_next_nvpair(nvl, nvp)) {
10290 
10291 		data_type_t type = nvpair_type(nvp);
10292 		const char *name = nvpair_name(nvp);
10293 
10294 		boolean_t b;
10295 		uint8_t i8;
10296 		uint16_t i16;
10297 		uint32_t i32;
10298 		uint64_t i64;
10299 		const char *str;
10300 		nvlist_t *cnv;
10301 
10302 		printf(gettext("%*s%s = "), depth, "", name);
10303 
10304 		switch (type) {
10305 		case DATA_TYPE_BOOLEAN:
10306 			printf(gettext("%s"), "1");
10307 			break;
10308 
10309 		case DATA_TYPE_BOOLEAN_VALUE:
10310 			(void) nvpair_value_boolean_value(nvp, &b);
10311 			printf(gettext("%s"), b ? "1" : "0");
10312 			break;
10313 
10314 		case DATA_TYPE_BYTE:
10315 			(void) nvpair_value_byte(nvp, &i8);
10316 			printf(gettext("0x%x"), i8);
10317 			break;
10318 
10319 		case DATA_TYPE_INT8:
10320 			(void) nvpair_value_int8(nvp, (void *)&i8);
10321 			printf(gettext("0x%x"), i8);
10322 			break;
10323 
10324 		case DATA_TYPE_UINT8:
10325 			(void) nvpair_value_uint8(nvp, &i8);
10326 			printf(gettext("0x%x"), i8);
10327 			break;
10328 
10329 		case DATA_TYPE_INT16:
10330 			(void) nvpair_value_int16(nvp, (void *)&i16);
10331 			printf(gettext("0x%x"), i16);
10332 			break;
10333 
10334 		case DATA_TYPE_UINT16:
10335 			(void) nvpair_value_uint16(nvp, &i16);
10336 			printf(gettext("0x%x"), i16);
10337 			break;
10338 
10339 		case DATA_TYPE_INT32:
10340 			(void) nvpair_value_int32(nvp, (void *)&i32);
10341 			printf(gettext("0x%x"), i32);
10342 			break;
10343 
10344 		case DATA_TYPE_UINT32:
10345 			(void) nvpair_value_uint32(nvp, &i32);
10346 			printf(gettext("0x%x"), i32);
10347 			break;
10348 
10349 		case DATA_TYPE_INT64:
10350 			(void) nvpair_value_int64(nvp, (void *)&i64);
10351 			printf(gettext("0x%llx"), (u_longlong_t)i64);
10352 			break;
10353 
10354 		case DATA_TYPE_UINT64:
10355 			(void) nvpair_value_uint64(nvp, &i64);
10356 			/*
10357 			 * translate vdev state values to readable
10358 			 * strings to aide zpool events consumers
10359 			 */
10360 			if (strcmp(name,
10361 			    FM_EREPORT_PAYLOAD_ZFS_VDEV_STATE) == 0 ||
10362 			    strcmp(name,
10363 			    FM_EREPORT_PAYLOAD_ZFS_VDEV_LASTSTATE) == 0) {
10364 				printf(gettext("\"%s\" (0x%llx)"),
10365 				    zpool_state_to_name(i64, VDEV_AUX_NONE),
10366 				    (u_longlong_t)i64);
10367 			} else {
10368 				printf(gettext("0x%llx"), (u_longlong_t)i64);
10369 			}
10370 			break;
10371 
10372 		case DATA_TYPE_HRTIME:
10373 			(void) nvpair_value_hrtime(nvp, (void *)&i64);
10374 			printf(gettext("0x%llx"), (u_longlong_t)i64);
10375 			break;
10376 
10377 		case DATA_TYPE_STRING:
10378 			(void) nvpair_value_string(nvp, &str);
10379 			printf(gettext("\"%s\""), str ? str : "<NULL>");
10380 			break;
10381 
10382 		case DATA_TYPE_NVLIST:
10383 			printf(gettext("(embedded nvlist)\n"));
10384 			(void) nvpair_value_nvlist(nvp, &cnv);
10385 			zpool_do_events_nvprint(cnv, depth + 8);
10386 			printf(gettext("%*s(end %s)"), depth, "", name);
10387 			break;
10388 
10389 		case DATA_TYPE_NVLIST_ARRAY: {
10390 			nvlist_t **val;
10391 			uint_t i, nelem;
10392 
10393 			(void) nvpair_value_nvlist_array(nvp, &val, &nelem);
10394 			printf(gettext("(%d embedded nvlists)\n"), nelem);
10395 			for (i = 0; i < nelem; i++) {
10396 				printf(gettext("%*s%s[%d] = %s\n"),
10397 				    depth, "", name, i, "(embedded nvlist)");
10398 				zpool_do_events_nvprint(val[i], depth + 8);
10399 				printf(gettext("%*s(end %s[%i])\n"),
10400 				    depth, "", name, i);
10401 			}
10402 			printf(gettext("%*s(end %s)\n"), depth, "", name);
10403 			}
10404 			break;
10405 
10406 		case DATA_TYPE_INT8_ARRAY: {
10407 			int8_t *val;
10408 			uint_t i, nelem;
10409 
10410 			(void) nvpair_value_int8_array(nvp, &val, &nelem);
10411 			for (i = 0; i < nelem; i++)
10412 				printf(gettext("0x%x "), val[i]);
10413 
10414 			break;
10415 			}
10416 
10417 		case DATA_TYPE_UINT8_ARRAY: {
10418 			uint8_t *val;
10419 			uint_t i, nelem;
10420 
10421 			(void) nvpair_value_uint8_array(nvp, &val, &nelem);
10422 			for (i = 0; i < nelem; i++)
10423 				printf(gettext("0x%x "), val[i]);
10424 
10425 			break;
10426 			}
10427 
10428 		case DATA_TYPE_INT16_ARRAY: {
10429 			int16_t *val;
10430 			uint_t i, nelem;
10431 
10432 			(void) nvpair_value_int16_array(nvp, &val, &nelem);
10433 			for (i = 0; i < nelem; i++)
10434 				printf(gettext("0x%x "), val[i]);
10435 
10436 			break;
10437 			}
10438 
10439 		case DATA_TYPE_UINT16_ARRAY: {
10440 			uint16_t *val;
10441 			uint_t i, nelem;
10442 
10443 			(void) nvpair_value_uint16_array(nvp, &val, &nelem);
10444 			for (i = 0; i < nelem; i++)
10445 				printf(gettext("0x%x "), val[i]);
10446 
10447 			break;
10448 			}
10449 
10450 		case DATA_TYPE_INT32_ARRAY: {
10451 			int32_t *val;
10452 			uint_t i, nelem;
10453 
10454 			(void) nvpair_value_int32_array(nvp, &val, &nelem);
10455 			for (i = 0; i < nelem; i++)
10456 				printf(gettext("0x%x "), val[i]);
10457 
10458 			break;
10459 			}
10460 
10461 		case DATA_TYPE_UINT32_ARRAY: {
10462 			uint32_t *val;
10463 			uint_t i, nelem;
10464 
10465 			(void) nvpair_value_uint32_array(nvp, &val, &nelem);
10466 			for (i = 0; i < nelem; i++)
10467 				printf(gettext("0x%x "), val[i]);
10468 
10469 			break;
10470 			}
10471 
10472 		case DATA_TYPE_INT64_ARRAY: {
10473 			int64_t *val;
10474 			uint_t i, nelem;
10475 
10476 			(void) nvpair_value_int64_array(nvp, &val, &nelem);
10477 			for (i = 0; i < nelem; i++)
10478 				printf(gettext("0x%llx "),
10479 				    (u_longlong_t)val[i]);
10480 
10481 			break;
10482 			}
10483 
10484 		case DATA_TYPE_UINT64_ARRAY: {
10485 			uint64_t *val;
10486 			uint_t i, nelem;
10487 
10488 			(void) nvpair_value_uint64_array(nvp, &val, &nelem);
10489 			for (i = 0; i < nelem; i++)
10490 				printf(gettext("0x%llx "),
10491 				    (u_longlong_t)val[i]);
10492 
10493 			break;
10494 			}
10495 
10496 		case DATA_TYPE_STRING_ARRAY: {
10497 			const char **str;
10498 			uint_t i, nelem;
10499 
10500 			(void) nvpair_value_string_array(nvp, &str, &nelem);
10501 			for (i = 0; i < nelem; i++)
10502 				printf(gettext("\"%s\" "),
10503 				    str[i] ? str[i] : "<NULL>");
10504 
10505 			break;
10506 			}
10507 
10508 		case DATA_TYPE_BOOLEAN_ARRAY:
10509 		case DATA_TYPE_BYTE_ARRAY:
10510 		case DATA_TYPE_DOUBLE:
10511 		case DATA_TYPE_DONTCARE:
10512 		case DATA_TYPE_UNKNOWN:
10513 			printf(gettext("<unknown>"));
10514 			break;
10515 		}
10516 
10517 		printf(gettext("\n"));
10518 	}
10519 }
10520 
10521 static int
10522 zpool_do_events_next(ev_opts_t *opts)
10523 {
10524 	nvlist_t *nvl;
10525 	int zevent_fd, ret, dropped;
10526 	const char *pool;
10527 
10528 	zevent_fd = open(ZFS_DEV, O_RDWR);
10529 	VERIFY(zevent_fd >= 0);
10530 
10531 	if (!opts->scripted)
10532 		(void) printf(gettext("%-30s %s\n"), "TIME", "CLASS");
10533 
10534 	while (1) {
10535 		ret = zpool_events_next(g_zfs, &nvl, &dropped,
10536 		    (opts->follow ? ZEVENT_NONE : ZEVENT_NONBLOCK), zevent_fd);
10537 		if (ret || nvl == NULL)
10538 			break;
10539 
10540 		if (dropped > 0)
10541 			(void) printf(gettext("dropped %d events\n"), dropped);
10542 
10543 		if (strlen(opts->poolname) > 0 &&
10544 		    nvlist_lookup_string(nvl, FM_FMRI_ZFS_POOL, &pool) == 0 &&
10545 		    strcmp(opts->poolname, pool) != 0)
10546 			continue;
10547 
10548 		zpool_do_events_short(nvl, opts);
10549 
10550 		if (opts->verbose) {
10551 			zpool_do_events_nvprint(nvl, 8);
10552 			printf(gettext("\n"));
10553 		}
10554 		(void) fflush(stdout);
10555 
10556 		nvlist_free(nvl);
10557 	}
10558 
10559 	VERIFY(0 == close(zevent_fd));
10560 
10561 	return (ret);
10562 }
10563 
10564 static int
10565 zpool_do_events_clear(void)
10566 {
10567 	int count, ret;
10568 
10569 	ret = zpool_events_clear(g_zfs, &count);
10570 	if (!ret)
10571 		(void) printf(gettext("cleared %d events\n"), count);
10572 
10573 	return (ret);
10574 }
10575 
10576 /*
10577  * zpool events [-vHf [pool] | -c]
10578  *
10579  * Displays events logs by ZFS.
10580  */
10581 int
10582 zpool_do_events(int argc, char **argv)
10583 {
10584 	ev_opts_t opts = { 0 };
10585 	int ret;
10586 	int c;
10587 
10588 	/* check options */
10589 	while ((c = getopt(argc, argv, "vHfc")) != -1) {
10590 		switch (c) {
10591 		case 'v':
10592 			opts.verbose = 1;
10593 			break;
10594 		case 'H':
10595 			opts.scripted = 1;
10596 			break;
10597 		case 'f':
10598 			opts.follow = 1;
10599 			break;
10600 		case 'c':
10601 			opts.clear = 1;
10602 			break;
10603 		case '?':
10604 			(void) fprintf(stderr, gettext("invalid option '%c'\n"),
10605 			    optopt);
10606 			usage(B_FALSE);
10607 		}
10608 	}
10609 	argc -= optind;
10610 	argv += optind;
10611 
10612 	if (argc > 1) {
10613 		(void) fprintf(stderr, gettext("too many arguments\n"));
10614 		usage(B_FALSE);
10615 	} else if (argc == 1) {
10616 		(void) strlcpy(opts.poolname, argv[0], sizeof (opts.poolname));
10617 		if (!zfs_name_valid(opts.poolname, ZFS_TYPE_POOL)) {
10618 			(void) fprintf(stderr,
10619 			    gettext("invalid pool name '%s'\n"), opts.poolname);
10620 			usage(B_FALSE);
10621 		}
10622 	}
10623 
10624 	if ((argc == 1 || opts.verbose || opts.scripted || opts.follow) &&
10625 	    opts.clear) {
10626 		(void) fprintf(stderr,
10627 		    gettext("invalid options combined with -c\n"));
10628 		usage(B_FALSE);
10629 	}
10630 
10631 	if (opts.clear)
10632 		ret = zpool_do_events_clear();
10633 	else
10634 		ret = zpool_do_events_next(&opts);
10635 
10636 	return (ret);
10637 }
10638 
10639 static int
10640 get_callback_vdev(zpool_handle_t *zhp, char *vdevname, void *data)
10641 {
10642 	zprop_get_cbdata_t *cbp = (zprop_get_cbdata_t *)data;
10643 	char value[ZFS_MAXPROPLEN];
10644 	zprop_source_t srctype;
10645 
10646 	for (zprop_list_t *pl = cbp->cb_proplist; pl != NULL;
10647 	    pl = pl->pl_next) {
10648 		char *prop_name;
10649 		/*
10650 		 * If the first property is pool name, it is a special
10651 		 * placeholder that we can skip. This will also skip
10652 		 * over the name property when 'all' is specified.
10653 		 */
10654 		if (pl->pl_prop == ZPOOL_PROP_NAME &&
10655 		    pl == cbp->cb_proplist)
10656 			continue;
10657 
10658 		if (pl->pl_prop == ZPROP_INVAL) {
10659 			prop_name = pl->pl_user_prop;
10660 		} else {
10661 			prop_name = (char *)vdev_prop_to_name(pl->pl_prop);
10662 		}
10663 		if (zpool_get_vdev_prop(zhp, vdevname, pl->pl_prop,
10664 		    prop_name, value, sizeof (value), &srctype,
10665 		    cbp->cb_literal) == 0) {
10666 			zprop_print_one_property(vdevname, cbp, prop_name,
10667 			    value, srctype, NULL, NULL);
10668 		}
10669 	}
10670 
10671 	return (0);
10672 }
10673 
10674 static int
10675 get_callback_vdev_cb(void *zhp_data, nvlist_t *nv, void *data)
10676 {
10677 	zpool_handle_t *zhp = zhp_data;
10678 	zprop_get_cbdata_t *cbp = (zprop_get_cbdata_t *)data;
10679 	char *vdevname;
10680 	const char *type;
10681 	int ret;
10682 
10683 	/*
10684 	 * zpool_vdev_name() transforms the root vdev name (i.e., root-0) to the
10685 	 * pool name for display purposes, which is not desired. Fallback to
10686 	 * zpool_vdev_name() when not dealing with the root vdev.
10687 	 */
10688 	type = fnvlist_lookup_string(nv, ZPOOL_CONFIG_TYPE);
10689 	if (zhp != NULL && strcmp(type, "root") == 0)
10690 		vdevname = strdup("root-0");
10691 	else
10692 		vdevname = zpool_vdev_name(g_zfs, zhp, nv,
10693 		    cbp->cb_vdevs.cb_name_flags);
10694 
10695 	(void) vdev_expand_proplist(zhp, vdevname, &cbp->cb_proplist);
10696 
10697 	ret = get_callback_vdev(zhp, vdevname, data);
10698 
10699 	free(vdevname);
10700 
10701 	return (ret);
10702 }
10703 
10704 static int
10705 get_callback(zpool_handle_t *zhp, void *data)
10706 {
10707 	zprop_get_cbdata_t *cbp = (zprop_get_cbdata_t *)data;
10708 	char value[ZFS_MAXPROPLEN];
10709 	zprop_source_t srctype;
10710 	zprop_list_t *pl;
10711 	int vid;
10712 
10713 	if (cbp->cb_type == ZFS_TYPE_VDEV) {
10714 		if (strcmp(cbp->cb_vdevs.cb_names[0], "all-vdevs") == 0) {
10715 			for_each_vdev(zhp, get_callback_vdev_cb, data);
10716 		} else {
10717 			/* Adjust column widths for vdev properties */
10718 			for (vid = 0; vid < cbp->cb_vdevs.cb_names_count;
10719 			    vid++) {
10720 				vdev_expand_proplist(zhp,
10721 				    cbp->cb_vdevs.cb_names[vid],
10722 				    &cbp->cb_proplist);
10723 			}
10724 			/* Display the properties */
10725 			for (vid = 0; vid < cbp->cb_vdevs.cb_names_count;
10726 			    vid++) {
10727 				get_callback_vdev(zhp,
10728 				    cbp->cb_vdevs.cb_names[vid], data);
10729 			}
10730 		}
10731 	} else {
10732 		assert(cbp->cb_type == ZFS_TYPE_POOL);
10733 		for (pl = cbp->cb_proplist; pl != NULL; pl = pl->pl_next) {
10734 			/*
10735 			 * Skip the special fake placeholder. This will also
10736 			 * skip over the name property when 'all' is specified.
10737 			 */
10738 			if (pl->pl_prop == ZPOOL_PROP_NAME &&
10739 			    pl == cbp->cb_proplist)
10740 				continue;
10741 
10742 			if (pl->pl_prop == ZPROP_INVAL &&
10743 			    zfs_prop_user(pl->pl_user_prop)) {
10744 				srctype = ZPROP_SRC_LOCAL;
10745 
10746 				if (zpool_get_userprop(zhp, pl->pl_user_prop,
10747 				    value, sizeof (value), &srctype) != 0)
10748 					continue;
10749 
10750 				zprop_print_one_property(zpool_get_name(zhp),
10751 				    cbp, pl->pl_user_prop, value, srctype,
10752 				    NULL, NULL);
10753 			} else if (pl->pl_prop == ZPROP_INVAL &&
10754 			    (zpool_prop_feature(pl->pl_user_prop) ||
10755 			    zpool_prop_unsupported(pl->pl_user_prop))) {
10756 				srctype = ZPROP_SRC_LOCAL;
10757 
10758 				if (zpool_prop_get_feature(zhp,
10759 				    pl->pl_user_prop, value,
10760 				    sizeof (value)) == 0) {
10761 					zprop_print_one_property(
10762 					    zpool_get_name(zhp), cbp,
10763 					    pl->pl_user_prop, value, srctype,
10764 					    NULL, NULL);
10765 				}
10766 			} else {
10767 				if (zpool_get_prop(zhp, pl->pl_prop, value,
10768 				    sizeof (value), &srctype,
10769 				    cbp->cb_literal) != 0)
10770 					continue;
10771 
10772 				zprop_print_one_property(zpool_get_name(zhp),
10773 				    cbp, zpool_prop_to_name(pl->pl_prop),
10774 				    value, srctype, NULL, NULL);
10775 			}
10776 		}
10777 	}
10778 
10779 	return (0);
10780 }
10781 
10782 /*
10783  * zpool get [-Hp] [-o "all" | field[,...]] <"all" | property[,...]> <pool> ...
10784  *
10785  *	-H	Scripted mode.  Don't display headers, and separate properties
10786  *		by a single tab.
10787  *	-o	List of columns to display.  Defaults to
10788  *		"name,property,value,source".
10789  * 	-p	Display values in parsable (exact) format.
10790  *
10791  * Get properties of pools in the system. Output space statistics
10792  * for each one as well as other attributes.
10793  */
10794 int
10795 zpool_do_get(int argc, char **argv)
10796 {
10797 	zprop_get_cbdata_t cb = { 0 };
10798 	zprop_list_t fake_name = { 0 };
10799 	int ret;
10800 	int c, i;
10801 	char *propstr = NULL;
10802 	char *vdev = NULL;
10803 
10804 	cb.cb_first = B_TRUE;
10805 
10806 	/*
10807 	 * Set up default columns and sources.
10808 	 */
10809 	cb.cb_sources = ZPROP_SRC_ALL;
10810 	cb.cb_columns[0] = GET_COL_NAME;
10811 	cb.cb_columns[1] = GET_COL_PROPERTY;
10812 	cb.cb_columns[2] = GET_COL_VALUE;
10813 	cb.cb_columns[3] = GET_COL_SOURCE;
10814 	cb.cb_type = ZFS_TYPE_POOL;
10815 	cb.cb_vdevs.cb_name_flags |= VDEV_NAME_TYPE_ID;
10816 	current_prop_type = cb.cb_type;
10817 
10818 	/* check options */
10819 	while ((c = getopt(argc, argv, ":Hpo:")) != -1) {
10820 		switch (c) {
10821 		case 'p':
10822 			cb.cb_literal = B_TRUE;
10823 			break;
10824 		case 'H':
10825 			cb.cb_scripted = B_TRUE;
10826 			break;
10827 		case 'o':
10828 			memset(&cb.cb_columns, 0, sizeof (cb.cb_columns));
10829 			i = 0;
10830 
10831 			for (char *tok; (tok = strsep(&optarg, ",")); ) {
10832 				static const char *const col_opts[] =
10833 				{ "name", "property", "value", "source",
10834 				    "all" };
10835 				static const zfs_get_column_t col_cols[] =
10836 				{ GET_COL_NAME, GET_COL_PROPERTY, GET_COL_VALUE,
10837 				    GET_COL_SOURCE };
10838 
10839 				if (i == ZFS_GET_NCOLS - 1) {
10840 					(void) fprintf(stderr, gettext("too "
10841 					"many fields given to -o "
10842 					"option\n"));
10843 					usage(B_FALSE);
10844 				}
10845 
10846 				for (c = 0; c < ARRAY_SIZE(col_opts); ++c)
10847 					if (strcmp(tok, col_opts[c]) == 0)
10848 						goto found;
10849 
10850 				(void) fprintf(stderr,
10851 				    gettext("invalid column name '%s'\n"), tok);
10852 				usage(B_FALSE);
10853 
10854 found:
10855 				if (c >= 4) {
10856 					if (i > 0) {
10857 						(void) fprintf(stderr,
10858 						    gettext("\"all\" conflicts "
10859 						    "with specific fields "
10860 						    "given to -o option\n"));
10861 						usage(B_FALSE);
10862 					}
10863 
10864 					memcpy(cb.cb_columns, col_cols,
10865 					    sizeof (col_cols));
10866 					i = ZFS_GET_NCOLS - 1;
10867 				} else
10868 					cb.cb_columns[i++] = col_cols[c];
10869 			}
10870 			break;
10871 		case '?':
10872 			(void) fprintf(stderr, gettext("invalid option '%c'\n"),
10873 			    optopt);
10874 			usage(B_FALSE);
10875 		}
10876 	}
10877 
10878 	argc -= optind;
10879 	argv += optind;
10880 
10881 	if (argc < 1) {
10882 		(void) fprintf(stderr, gettext("missing property "
10883 		    "argument\n"));
10884 		usage(B_FALSE);
10885 	}
10886 
10887 	/* Properties list is needed later by zprop_get_list() */
10888 	propstr = argv[0];
10889 
10890 	argc--;
10891 	argv++;
10892 
10893 	if (argc == 0) {
10894 		/* No args, so just print the defaults. */
10895 	} else if (are_all_pools(argc, argv)) {
10896 		/* All the args are pool names */
10897 	} else if (are_all_pools(1, argv)) {
10898 		/* The first arg is a pool name */
10899 		if ((argc == 2 && strcmp(argv[1], "all-vdevs") == 0) ||
10900 		    (argc == 2 && strcmp(argv[1], "root") == 0) ||
10901 		    are_vdevs_in_pool(argc - 1, argv + 1, argv[0],
10902 		    &cb.cb_vdevs)) {
10903 
10904 			if (strcmp(argv[1], "root") == 0)
10905 				vdev = strdup("root-0");
10906 			else
10907 				vdev = strdup(argv[1]);
10908 
10909 			/* ... and the rest are vdev names */
10910 			cb.cb_vdevs.cb_names = &vdev;
10911 			cb.cb_vdevs.cb_names_count = argc - 1;
10912 			cb.cb_type = ZFS_TYPE_VDEV;
10913 			argc = 1; /* One pool to process */
10914 		} else {
10915 			fprintf(stderr, gettext("Expected a list of vdevs in"
10916 			    " \"%s\", but got:\n"), argv[0]);
10917 			error_list_unresolved_vdevs(argc - 1, argv + 1,
10918 			    argv[0], &cb.cb_vdevs);
10919 			fprintf(stderr, "\n");
10920 			usage(B_FALSE);
10921 			return (1);
10922 		}
10923 	} else {
10924 		/*
10925 		 * The first arg isn't the name of a valid pool.
10926 		 */
10927 		fprintf(stderr, gettext("Cannot get properties of %s: "
10928 		    "no such pool available.\n"), argv[0]);
10929 		return (1);
10930 	}
10931 
10932 	if (zprop_get_list(g_zfs, propstr, &cb.cb_proplist,
10933 	    cb.cb_type) != 0) {
10934 		/* Use correct list of valid properties (pool or vdev) */
10935 		current_prop_type = cb.cb_type;
10936 		usage(B_FALSE);
10937 	}
10938 
10939 	if (cb.cb_proplist != NULL) {
10940 		fake_name.pl_prop = ZPOOL_PROP_NAME;
10941 		fake_name.pl_width = strlen(gettext("NAME"));
10942 		fake_name.pl_next = cb.cb_proplist;
10943 		cb.cb_proplist = &fake_name;
10944 	}
10945 
10946 	ret = for_each_pool(argc, argv, B_TRUE, &cb.cb_proplist, cb.cb_type,
10947 	    cb.cb_literal, get_callback, &cb);
10948 
10949 	if (cb.cb_proplist == &fake_name)
10950 		zprop_free_list(fake_name.pl_next);
10951 	else
10952 		zprop_free_list(cb.cb_proplist);
10953 
10954 	if (vdev != NULL)
10955 		free(vdev);
10956 
10957 	return (ret);
10958 }
10959 
10960 typedef struct set_cbdata {
10961 	char *cb_propname;
10962 	char *cb_value;
10963 	zfs_type_t cb_type;
10964 	vdev_cbdata_t cb_vdevs;
10965 	boolean_t cb_any_successful;
10966 } set_cbdata_t;
10967 
10968 static int
10969 set_pool_callback(zpool_handle_t *zhp, set_cbdata_t *cb)
10970 {
10971 	int error;
10972 
10973 	/* Check if we have out-of-bounds features */
10974 	if (strcmp(cb->cb_propname, ZPOOL_CONFIG_COMPATIBILITY) == 0) {
10975 		boolean_t features[SPA_FEATURES];
10976 		if (zpool_do_load_compat(cb->cb_value, features) !=
10977 		    ZPOOL_COMPATIBILITY_OK)
10978 			return (-1);
10979 
10980 		nvlist_t *enabled = zpool_get_features(zhp);
10981 		spa_feature_t i;
10982 		for (i = 0; i < SPA_FEATURES; i++) {
10983 			const char *fguid = spa_feature_table[i].fi_guid;
10984 			if (nvlist_exists(enabled, fguid) && !features[i])
10985 				break;
10986 		}
10987 		if (i < SPA_FEATURES)
10988 			(void) fprintf(stderr, gettext("Warning: one or "
10989 			    "more features already enabled on pool '%s'\n"
10990 			    "are not present in this compatibility set.\n"),
10991 			    zpool_get_name(zhp));
10992 	}
10993 
10994 	/* if we're setting a feature, check it's in compatibility set */
10995 	if (zpool_prop_feature(cb->cb_propname) &&
10996 	    strcmp(cb->cb_value, ZFS_FEATURE_ENABLED) == 0) {
10997 		char *fname = strchr(cb->cb_propname, '@') + 1;
10998 		spa_feature_t f;
10999 
11000 		if (zfeature_lookup_name(fname, &f) == 0) {
11001 			char compat[ZFS_MAXPROPLEN];
11002 			if (zpool_get_prop(zhp, ZPOOL_PROP_COMPATIBILITY,
11003 			    compat, ZFS_MAXPROPLEN, NULL, B_FALSE) != 0)
11004 				compat[0] = '\0';
11005 
11006 			boolean_t features[SPA_FEATURES];
11007 			if (zpool_do_load_compat(compat, features) !=
11008 			    ZPOOL_COMPATIBILITY_OK) {
11009 				(void) fprintf(stderr, gettext("Error: "
11010 				    "cannot enable feature '%s' on pool '%s'\n"
11011 				    "because the pool's 'compatibility' "
11012 				    "property cannot be parsed.\n"),
11013 				    fname, zpool_get_name(zhp));
11014 				return (-1);
11015 			}
11016 
11017 			if (!features[f]) {
11018 				(void) fprintf(stderr, gettext("Error: "
11019 				    "cannot enable feature '%s' on pool '%s'\n"
11020 				    "as it is not specified in this pool's "
11021 				    "current compatibility set.\n"
11022 				    "Consider setting 'compatibility' to a "
11023 				    "less restrictive set, or to 'off'.\n"),
11024 				    fname, zpool_get_name(zhp));
11025 				return (-1);
11026 			}
11027 		}
11028 	}
11029 
11030 	error = zpool_set_prop(zhp, cb->cb_propname, cb->cb_value);
11031 
11032 	return (error);
11033 }
11034 
11035 static int
11036 set_callback(zpool_handle_t *zhp, void *data)
11037 {
11038 	int error;
11039 	set_cbdata_t *cb = (set_cbdata_t *)data;
11040 
11041 	if (cb->cb_type == ZFS_TYPE_VDEV) {
11042 		error = zpool_set_vdev_prop(zhp, *cb->cb_vdevs.cb_names,
11043 		    cb->cb_propname, cb->cb_value);
11044 	} else {
11045 		assert(cb->cb_type == ZFS_TYPE_POOL);
11046 		error = set_pool_callback(zhp, cb);
11047 	}
11048 
11049 	cb->cb_any_successful = !error;
11050 	return (error);
11051 }
11052 
11053 int
11054 zpool_do_set(int argc, char **argv)
11055 {
11056 	set_cbdata_t cb = { 0 };
11057 	int error;
11058 	char *vdev = NULL;
11059 
11060 	current_prop_type = ZFS_TYPE_POOL;
11061 	if (argc > 1 && argv[1][0] == '-') {
11062 		(void) fprintf(stderr, gettext("invalid option '%c'\n"),
11063 		    argv[1][1]);
11064 		usage(B_FALSE);
11065 	}
11066 
11067 	if (argc < 2) {
11068 		(void) fprintf(stderr, gettext("missing property=value "
11069 		    "argument\n"));
11070 		usage(B_FALSE);
11071 	}
11072 
11073 	if (argc < 3) {
11074 		(void) fprintf(stderr, gettext("missing pool name\n"));
11075 		usage(B_FALSE);
11076 	}
11077 
11078 	if (argc > 4) {
11079 		(void) fprintf(stderr, gettext("too many pool names\n"));
11080 		usage(B_FALSE);
11081 	}
11082 
11083 	cb.cb_propname = argv[1];
11084 	cb.cb_type = ZFS_TYPE_POOL;
11085 	cb.cb_vdevs.cb_name_flags |= VDEV_NAME_TYPE_ID;
11086 	cb.cb_value = strchr(cb.cb_propname, '=');
11087 	if (cb.cb_value == NULL) {
11088 		(void) fprintf(stderr, gettext("missing value in "
11089 		    "property=value argument\n"));
11090 		usage(B_FALSE);
11091 	}
11092 
11093 	*(cb.cb_value) = '\0';
11094 	cb.cb_value++;
11095 	argc -= 2;
11096 	argv += 2;
11097 
11098 	/* argv[0] is pool name */
11099 	if (!is_pool(argv[0])) {
11100 		(void) fprintf(stderr,
11101 		    gettext("cannot open '%s': is not a pool\n"), argv[0]);
11102 		return (EINVAL);
11103 	}
11104 
11105 	/* argv[1], when supplied, is vdev name */
11106 	if (argc == 2) {
11107 
11108 		if (strcmp(argv[1], "root") == 0)
11109 			vdev = strdup("root-0");
11110 		else
11111 			vdev = strdup(argv[1]);
11112 
11113 		if (!are_vdevs_in_pool(1, &vdev, argv[0], &cb.cb_vdevs)) {
11114 			(void) fprintf(stderr, gettext(
11115 			    "cannot find '%s' in '%s': device not in pool\n"),
11116 			    vdev, argv[0]);
11117 			free(vdev);
11118 			return (EINVAL);
11119 		}
11120 		cb.cb_vdevs.cb_names = &vdev;
11121 		cb.cb_vdevs.cb_names_count = 1;
11122 		cb.cb_type = ZFS_TYPE_VDEV;
11123 	}
11124 
11125 	error = for_each_pool(1, argv, B_TRUE, NULL, ZFS_TYPE_POOL,
11126 	    B_FALSE, set_callback, &cb);
11127 
11128 	if (vdev != NULL)
11129 		free(vdev);
11130 
11131 	return (error);
11132 }
11133 
11134 /* Add up the total number of bytes left to initialize/trim across all vdevs */
11135 static uint64_t
11136 vdev_activity_remaining(nvlist_t *nv, zpool_wait_activity_t activity)
11137 {
11138 	uint64_t bytes_remaining;
11139 	nvlist_t **child;
11140 	uint_t c, children;
11141 	vdev_stat_t *vs;
11142 
11143 	assert(activity == ZPOOL_WAIT_INITIALIZE ||
11144 	    activity == ZPOOL_WAIT_TRIM);
11145 
11146 	verify(nvlist_lookup_uint64_array(nv, ZPOOL_CONFIG_VDEV_STATS,
11147 	    (uint64_t **)&vs, &c) == 0);
11148 
11149 	if (activity == ZPOOL_WAIT_INITIALIZE &&
11150 	    vs->vs_initialize_state == VDEV_INITIALIZE_ACTIVE)
11151 		bytes_remaining = vs->vs_initialize_bytes_est -
11152 		    vs->vs_initialize_bytes_done;
11153 	else if (activity == ZPOOL_WAIT_TRIM &&
11154 	    vs->vs_trim_state == VDEV_TRIM_ACTIVE)
11155 		bytes_remaining = vs->vs_trim_bytes_est -
11156 		    vs->vs_trim_bytes_done;
11157 	else
11158 		bytes_remaining = 0;
11159 
11160 	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
11161 	    &child, &children) != 0)
11162 		children = 0;
11163 
11164 	for (c = 0; c < children; c++)
11165 		bytes_remaining += vdev_activity_remaining(child[c], activity);
11166 
11167 	return (bytes_remaining);
11168 }
11169 
11170 /* Add up the total number of bytes left to rebuild across top-level vdevs */
11171 static uint64_t
11172 vdev_activity_top_remaining(nvlist_t *nv)
11173 {
11174 	uint64_t bytes_remaining = 0;
11175 	nvlist_t **child;
11176 	uint_t children;
11177 	int error;
11178 
11179 	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
11180 	    &child, &children) != 0)
11181 		children = 0;
11182 
11183 	for (uint_t c = 0; c < children; c++) {
11184 		vdev_rebuild_stat_t *vrs;
11185 		uint_t i;
11186 
11187 		error = nvlist_lookup_uint64_array(child[c],
11188 		    ZPOOL_CONFIG_REBUILD_STATS, (uint64_t **)&vrs, &i);
11189 		if (error == 0) {
11190 			if (vrs->vrs_state == VDEV_REBUILD_ACTIVE) {
11191 				bytes_remaining += (vrs->vrs_bytes_est -
11192 				    vrs->vrs_bytes_rebuilt);
11193 			}
11194 		}
11195 	}
11196 
11197 	return (bytes_remaining);
11198 }
11199 
11200 /* Whether any vdevs are 'spare' or 'replacing' vdevs */
11201 static boolean_t
11202 vdev_any_spare_replacing(nvlist_t *nv)
11203 {
11204 	nvlist_t **child;
11205 	uint_t c, children;
11206 	const char *vdev_type;
11207 
11208 	(void) nvlist_lookup_string(nv, ZPOOL_CONFIG_TYPE, &vdev_type);
11209 
11210 	if (strcmp(vdev_type, VDEV_TYPE_REPLACING) == 0 ||
11211 	    strcmp(vdev_type, VDEV_TYPE_SPARE) == 0 ||
11212 	    strcmp(vdev_type, VDEV_TYPE_DRAID_SPARE) == 0) {
11213 		return (B_TRUE);
11214 	}
11215 
11216 	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
11217 	    &child, &children) != 0)
11218 		children = 0;
11219 
11220 	for (c = 0; c < children; c++) {
11221 		if (vdev_any_spare_replacing(child[c]))
11222 			return (B_TRUE);
11223 	}
11224 
11225 	return (B_FALSE);
11226 }
11227 
11228 typedef struct wait_data {
11229 	char *wd_poolname;
11230 	boolean_t wd_scripted;
11231 	boolean_t wd_exact;
11232 	boolean_t wd_headers_once;
11233 	boolean_t wd_should_exit;
11234 	/* Which activities to wait for */
11235 	boolean_t wd_enabled[ZPOOL_WAIT_NUM_ACTIVITIES];
11236 	float wd_interval;
11237 	pthread_cond_t wd_cv;
11238 	pthread_mutex_t wd_mutex;
11239 } wait_data_t;
11240 
11241 /*
11242  * Print to stdout a single line, containing one column for each activity that
11243  * we are waiting for specifying how many bytes of work are left for that
11244  * activity.
11245  */
11246 static void
11247 print_wait_status_row(wait_data_t *wd, zpool_handle_t *zhp, int row)
11248 {
11249 	nvlist_t *config, *nvroot;
11250 	uint_t c;
11251 	int i;
11252 	pool_checkpoint_stat_t *pcs = NULL;
11253 	pool_scan_stat_t *pss = NULL;
11254 	pool_removal_stat_t *prs = NULL;
11255 	pool_raidz_expand_stat_t *pres = NULL;
11256 	const char *const headers[] = {"DISCARD", "FREE", "INITIALIZE",
11257 	    "REPLACE", "REMOVE", "RESILVER", "SCRUB", "TRIM", "RAIDZ_EXPAND"};
11258 	int col_widths[ZPOOL_WAIT_NUM_ACTIVITIES];
11259 
11260 	/* Calculate the width of each column */
11261 	for (i = 0; i < ZPOOL_WAIT_NUM_ACTIVITIES; i++) {
11262 		/*
11263 		 * Make sure we have enough space in the col for pretty-printed
11264 		 * numbers and for the column header, and then leave a couple
11265 		 * spaces between cols for readability.
11266 		 */
11267 		col_widths[i] = MAX(strlen(headers[i]), 6) + 2;
11268 	}
11269 
11270 	if (timestamp_fmt != NODATE)
11271 		print_timestamp(timestamp_fmt);
11272 
11273 	/* Print header if appropriate */
11274 	int term_height = terminal_height();
11275 	boolean_t reprint_header = (!wd->wd_headers_once && term_height > 0 &&
11276 	    row % (term_height-1) == 0);
11277 	if (!wd->wd_scripted && (row == 0 || reprint_header)) {
11278 		for (i = 0; i < ZPOOL_WAIT_NUM_ACTIVITIES; i++) {
11279 			if (wd->wd_enabled[i])
11280 				(void) printf("%*s", col_widths[i], headers[i]);
11281 		}
11282 		(void) fputc('\n', stdout);
11283 	}
11284 
11285 	/* Bytes of work remaining in each activity */
11286 	int64_t bytes_rem[ZPOOL_WAIT_NUM_ACTIVITIES] = {0};
11287 
11288 	bytes_rem[ZPOOL_WAIT_FREE] =
11289 	    zpool_get_prop_int(zhp, ZPOOL_PROP_FREEING, NULL);
11290 
11291 	config = zpool_get_config(zhp, NULL);
11292 	nvroot = fnvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE);
11293 
11294 	(void) nvlist_lookup_uint64_array(nvroot,
11295 	    ZPOOL_CONFIG_CHECKPOINT_STATS, (uint64_t **)&pcs, &c);
11296 	if (pcs != NULL && pcs->pcs_state == CS_CHECKPOINT_DISCARDING)
11297 		bytes_rem[ZPOOL_WAIT_CKPT_DISCARD] = pcs->pcs_space;
11298 
11299 	(void) nvlist_lookup_uint64_array(nvroot,
11300 	    ZPOOL_CONFIG_REMOVAL_STATS, (uint64_t **)&prs, &c);
11301 	if (prs != NULL && prs->prs_state == DSS_SCANNING)
11302 		bytes_rem[ZPOOL_WAIT_REMOVE] = prs->prs_to_copy -
11303 		    prs->prs_copied;
11304 
11305 	(void) nvlist_lookup_uint64_array(nvroot,
11306 	    ZPOOL_CONFIG_SCAN_STATS, (uint64_t **)&pss, &c);
11307 	if (pss != NULL && pss->pss_state == DSS_SCANNING &&
11308 	    pss->pss_pass_scrub_pause == 0) {
11309 		int64_t rem = pss->pss_to_examine - pss->pss_issued;
11310 		if (pss->pss_func == POOL_SCAN_SCRUB)
11311 			bytes_rem[ZPOOL_WAIT_SCRUB] = rem;
11312 		else
11313 			bytes_rem[ZPOOL_WAIT_RESILVER] = rem;
11314 	} else if (check_rebuilding(nvroot, NULL)) {
11315 		bytes_rem[ZPOOL_WAIT_RESILVER] =
11316 		    vdev_activity_top_remaining(nvroot);
11317 	}
11318 
11319 	(void) nvlist_lookup_uint64_array(nvroot,
11320 	    ZPOOL_CONFIG_RAIDZ_EXPAND_STATS, (uint64_t **)&pres, &c);
11321 	if (pres != NULL && pres->pres_state == DSS_SCANNING) {
11322 		int64_t rem = pres->pres_to_reflow - pres->pres_reflowed;
11323 		bytes_rem[ZPOOL_WAIT_RAIDZ_EXPAND] = rem;
11324 	}
11325 
11326 	bytes_rem[ZPOOL_WAIT_INITIALIZE] =
11327 	    vdev_activity_remaining(nvroot, ZPOOL_WAIT_INITIALIZE);
11328 	bytes_rem[ZPOOL_WAIT_TRIM] =
11329 	    vdev_activity_remaining(nvroot, ZPOOL_WAIT_TRIM);
11330 
11331 	/*
11332 	 * A replace finishes after resilvering finishes, so the amount of work
11333 	 * left for a replace is the same as for resilvering.
11334 	 *
11335 	 * It isn't quite correct to say that if we have any 'spare' or
11336 	 * 'replacing' vdevs and a resilver is happening, then a replace is in
11337 	 * progress, like we do here. When a hot spare is used, the faulted vdev
11338 	 * is not removed after the hot spare is resilvered, so parent 'spare'
11339 	 * vdev is not removed either. So we could have a 'spare' vdev, but be
11340 	 * resilvering for a different reason. However, we use it as a heuristic
11341 	 * because we don't have access to the DTLs, which could tell us whether
11342 	 * or not we have really finished resilvering a hot spare.
11343 	 */
11344 	if (vdev_any_spare_replacing(nvroot))
11345 		bytes_rem[ZPOOL_WAIT_REPLACE] =  bytes_rem[ZPOOL_WAIT_RESILVER];
11346 
11347 	for (i = 0; i < ZPOOL_WAIT_NUM_ACTIVITIES; i++) {
11348 		char buf[64];
11349 		if (!wd->wd_enabled[i])
11350 			continue;
11351 
11352 		if (wd->wd_exact) {
11353 			(void) snprintf(buf, sizeof (buf), "%" PRIi64,
11354 			    bytes_rem[i]);
11355 		} else {
11356 			zfs_nicenum(bytes_rem[i], buf, sizeof (buf));
11357 		}
11358 
11359 		if (wd->wd_scripted)
11360 			(void) printf(i == 0 ? "%s" : "\t%s", buf);
11361 		else
11362 			(void) printf(" %*s", col_widths[i] - 1, buf);
11363 	}
11364 	(void) printf("\n");
11365 	(void) fflush(stdout);
11366 }
11367 
11368 static void *
11369 wait_status_thread(void *arg)
11370 {
11371 	wait_data_t *wd = (wait_data_t *)arg;
11372 	zpool_handle_t *zhp;
11373 
11374 	if ((zhp = zpool_open(g_zfs, wd->wd_poolname)) == NULL)
11375 		return (void *)(1);
11376 
11377 	for (int row = 0; ; row++) {
11378 		boolean_t missing;
11379 		struct timespec timeout;
11380 		int ret = 0;
11381 		(void) clock_gettime(CLOCK_REALTIME, &timeout);
11382 
11383 		if (zpool_refresh_stats(zhp, &missing) != 0 || missing ||
11384 		    zpool_props_refresh(zhp) != 0) {
11385 			zpool_close(zhp);
11386 			return (void *)(uintptr_t)(missing ? 0 : 1);
11387 		}
11388 
11389 		print_wait_status_row(wd, zhp, row);
11390 
11391 		timeout.tv_sec += floor(wd->wd_interval);
11392 		long nanos = timeout.tv_nsec +
11393 		    (wd->wd_interval - floor(wd->wd_interval)) * NANOSEC;
11394 		if (nanos >= NANOSEC) {
11395 			timeout.tv_sec++;
11396 			timeout.tv_nsec = nanos - NANOSEC;
11397 		} else {
11398 			timeout.tv_nsec = nanos;
11399 		}
11400 		pthread_mutex_lock(&wd->wd_mutex);
11401 		if (!wd->wd_should_exit)
11402 			ret = pthread_cond_timedwait(&wd->wd_cv, &wd->wd_mutex,
11403 			    &timeout);
11404 		pthread_mutex_unlock(&wd->wd_mutex);
11405 		if (ret == 0) {
11406 			break; /* signaled by main thread */
11407 		} else if (ret != ETIMEDOUT) {
11408 			(void) fprintf(stderr, gettext("pthread_cond_timedwait "
11409 			    "failed: %s\n"), strerror(ret));
11410 			zpool_close(zhp);
11411 			return (void *)(uintptr_t)(1);
11412 		}
11413 	}
11414 
11415 	zpool_close(zhp);
11416 	return (void *)(0);
11417 }
11418 
11419 int
11420 zpool_do_wait(int argc, char **argv)
11421 {
11422 	boolean_t verbose = B_FALSE;
11423 	int c, i;
11424 	unsigned long count;
11425 	pthread_t status_thr;
11426 	int error = 0;
11427 	zpool_handle_t *zhp;
11428 
11429 	wait_data_t wd;
11430 	wd.wd_scripted = B_FALSE;
11431 	wd.wd_exact = B_FALSE;
11432 	wd.wd_headers_once = B_FALSE;
11433 	wd.wd_should_exit = B_FALSE;
11434 
11435 	pthread_mutex_init(&wd.wd_mutex, NULL);
11436 	pthread_cond_init(&wd.wd_cv, NULL);
11437 
11438 	/* By default, wait for all types of activity. */
11439 	for (i = 0; i < ZPOOL_WAIT_NUM_ACTIVITIES; i++)
11440 		wd.wd_enabled[i] = B_TRUE;
11441 
11442 	while ((c = getopt(argc, argv, "HpT:t:")) != -1) {
11443 		switch (c) {
11444 		case 'H':
11445 			wd.wd_scripted = B_TRUE;
11446 			break;
11447 		case 'n':
11448 			wd.wd_headers_once = B_TRUE;
11449 			break;
11450 		case 'p':
11451 			wd.wd_exact = B_TRUE;
11452 			break;
11453 		case 'T':
11454 			get_timestamp_arg(*optarg);
11455 			break;
11456 		case 't':
11457 			/* Reset activities array */
11458 			memset(&wd.wd_enabled, 0, sizeof (wd.wd_enabled));
11459 
11460 			for (char *tok; (tok = strsep(&optarg, ",")); ) {
11461 				static const char *const col_opts[] = {
11462 				    "discard", "free", "initialize", "replace",
11463 				    "remove", "resilver", "scrub", "trim",
11464 				    "raidz_expand" };
11465 
11466 				for (i = 0; i < ARRAY_SIZE(col_opts); ++i)
11467 					if (strcmp(tok, col_opts[i]) == 0) {
11468 						wd.wd_enabled[i] = B_TRUE;
11469 						goto found;
11470 					}
11471 
11472 				(void) fprintf(stderr,
11473 				    gettext("invalid activity '%s'\n"), tok);
11474 				usage(B_FALSE);
11475 found:;
11476 			}
11477 			break;
11478 		case '?':
11479 			(void) fprintf(stderr, gettext("invalid option '%c'\n"),
11480 			    optopt);
11481 			usage(B_FALSE);
11482 		}
11483 	}
11484 
11485 	argc -= optind;
11486 	argv += optind;
11487 
11488 	get_interval_count(&argc, argv, &wd.wd_interval, &count);
11489 	if (count != 0) {
11490 		/* This subcmd only accepts an interval, not a count */
11491 		(void) fprintf(stderr, gettext("too many arguments\n"));
11492 		usage(B_FALSE);
11493 	}
11494 
11495 	if (wd.wd_interval != 0)
11496 		verbose = B_TRUE;
11497 
11498 	if (argc < 1) {
11499 		(void) fprintf(stderr, gettext("missing 'pool' argument\n"));
11500 		usage(B_FALSE);
11501 	}
11502 	if (argc > 1) {
11503 		(void) fprintf(stderr, gettext("too many arguments\n"));
11504 		usage(B_FALSE);
11505 	}
11506 
11507 	wd.wd_poolname = argv[0];
11508 
11509 	if ((zhp = zpool_open(g_zfs, wd.wd_poolname)) == NULL)
11510 		return (1);
11511 
11512 	if (verbose) {
11513 		/*
11514 		 * We use a separate thread for printing status updates because
11515 		 * the main thread will call lzc_wait(), which blocks as long
11516 		 * as an activity is in progress, which can be a long time.
11517 		 */
11518 		if (pthread_create(&status_thr, NULL, wait_status_thread, &wd)
11519 		    != 0) {
11520 			(void) fprintf(stderr, gettext("failed to create status"
11521 			    "thread: %s\n"), strerror(errno));
11522 			zpool_close(zhp);
11523 			return (1);
11524 		}
11525 	}
11526 
11527 	/*
11528 	 * Loop over all activities that we are supposed to wait for until none
11529 	 * of them are in progress. Note that this means we can end up waiting
11530 	 * for more activities to complete than just those that were in progress
11531 	 * when we began waiting; if an activity we are interested in begins
11532 	 * while we are waiting for another activity, we will wait for both to
11533 	 * complete before exiting.
11534 	 */
11535 	for (;;) {
11536 		boolean_t missing = B_FALSE;
11537 		boolean_t any_waited = B_FALSE;
11538 
11539 		for (i = 0; i < ZPOOL_WAIT_NUM_ACTIVITIES; i++) {
11540 			boolean_t waited;
11541 
11542 			if (!wd.wd_enabled[i])
11543 				continue;
11544 
11545 			error = zpool_wait_status(zhp, i, &missing, &waited);
11546 			if (error != 0 || missing)
11547 				break;
11548 
11549 			any_waited = (any_waited || waited);
11550 		}
11551 
11552 		if (error != 0 || missing || !any_waited)
11553 			break;
11554 	}
11555 
11556 	zpool_close(zhp);
11557 
11558 	if (verbose) {
11559 		uintptr_t status;
11560 		pthread_mutex_lock(&wd.wd_mutex);
11561 		wd.wd_should_exit = B_TRUE;
11562 		pthread_cond_signal(&wd.wd_cv);
11563 		pthread_mutex_unlock(&wd.wd_mutex);
11564 		(void) pthread_join(status_thr, (void *)&status);
11565 		if (status != 0)
11566 			error = status;
11567 	}
11568 
11569 	pthread_mutex_destroy(&wd.wd_mutex);
11570 	pthread_cond_destroy(&wd.wd_cv);
11571 	return (error);
11572 }
11573 
11574 static int
11575 find_command_idx(const char *command, int *idx)
11576 {
11577 	for (int i = 0; i < NCOMMAND; ++i) {
11578 		if (command_table[i].name == NULL)
11579 			continue;
11580 
11581 		if (strcmp(command, command_table[i].name) == 0) {
11582 			*idx = i;
11583 			return (0);
11584 		}
11585 	}
11586 	return (1);
11587 }
11588 
11589 /*
11590  * Display version message
11591  */
11592 static int
11593 zpool_do_version(int argc, char **argv)
11594 {
11595 	(void) argc, (void) argv;
11596 	return (zfs_version_print() != 0);
11597 }
11598 
11599 /* Display documentation */
11600 static int
11601 zpool_do_help(int argc, char **argv)
11602 {
11603 	char page[MAXNAMELEN];
11604 	if (argc < 3 || strcmp(argv[2], "zpool") == 0)
11605 		strcpy(page, "zpool");
11606 	else if (strcmp(argv[2], "concepts") == 0 ||
11607 	    strcmp(argv[2], "props") == 0)
11608 		snprintf(page, sizeof (page), "zpool%s", argv[2]);
11609 	else
11610 		snprintf(page, sizeof (page), "zpool-%s", argv[2]);
11611 
11612 	execlp("man", "man", page, NULL);
11613 
11614 	fprintf(stderr, "couldn't run man program: %s", strerror(errno));
11615 	return (-1);
11616 }
11617 
11618 /*
11619  * Do zpool_load_compat() and print error message on failure
11620  */
11621 static zpool_compat_status_t
11622 zpool_do_load_compat(const char *compat, boolean_t *list)
11623 {
11624 	char report[1024];
11625 
11626 	zpool_compat_status_t ret;
11627 
11628 	ret = zpool_load_compat(compat, list, report, 1024);
11629 	switch (ret) {
11630 
11631 	case ZPOOL_COMPATIBILITY_OK:
11632 		break;
11633 
11634 	case ZPOOL_COMPATIBILITY_NOFILES:
11635 	case ZPOOL_COMPATIBILITY_BADFILE:
11636 	case ZPOOL_COMPATIBILITY_BADTOKEN:
11637 		(void) fprintf(stderr, "Error: %s\n", report);
11638 		break;
11639 
11640 	case ZPOOL_COMPATIBILITY_WARNTOKEN:
11641 		(void) fprintf(stderr, "Warning: %s\n", report);
11642 		ret = ZPOOL_COMPATIBILITY_OK;
11643 		break;
11644 	}
11645 	return (ret);
11646 }
11647 
11648 int
11649 main(int argc, char **argv)
11650 {
11651 	int ret = 0;
11652 	int i = 0;
11653 	char *cmdname;
11654 	char **newargv;
11655 
11656 	(void) setlocale(LC_ALL, "");
11657 	(void) setlocale(LC_NUMERIC, "C");
11658 	(void) textdomain(TEXT_DOMAIN);
11659 	srand(time(NULL));
11660 
11661 	opterr = 0;
11662 
11663 	/*
11664 	 * Make sure the user has specified some command.
11665 	 */
11666 	if (argc < 2) {
11667 		(void) fprintf(stderr, gettext("missing command\n"));
11668 		usage(B_FALSE);
11669 	}
11670 
11671 	cmdname = argv[1];
11672 
11673 	/*
11674 	 * Special case '-?'
11675 	 */
11676 	if ((strcmp(cmdname, "-?") == 0) || strcmp(cmdname, "--help") == 0)
11677 		usage(B_TRUE);
11678 
11679 	/*
11680 	 * Special case '-V|--version'
11681 	 */
11682 	if ((strcmp(cmdname, "-V") == 0) || (strcmp(cmdname, "--version") == 0))
11683 		return (zpool_do_version(argc, argv));
11684 
11685 	/*
11686 	 * Special case 'help'
11687 	 */
11688 	if (strcmp(cmdname, "help") == 0)
11689 		return (zpool_do_help(argc, argv));
11690 
11691 	if ((g_zfs = libzfs_init()) == NULL) {
11692 		(void) fprintf(stderr, "%s\n", libzfs_error_init(errno));
11693 		return (1);
11694 	}
11695 
11696 	libzfs_print_on_error(g_zfs, B_TRUE);
11697 
11698 	zfs_save_arguments(argc, argv, history_str, sizeof (history_str));
11699 
11700 	/*
11701 	 * Many commands modify input strings for string parsing reasons.
11702 	 * We create a copy to protect the original argv.
11703 	 */
11704 	newargv = safe_malloc((argc + 1) * sizeof (newargv[0]));
11705 	for (i = 0; i < argc; i++)
11706 		newargv[i] = strdup(argv[i]);
11707 	newargv[argc] = NULL;
11708 
11709 	/*
11710 	 * Run the appropriate command.
11711 	 */
11712 	if (find_command_idx(cmdname, &i) == 0) {
11713 		current_command = &command_table[i];
11714 		ret = command_table[i].func(argc - 1, newargv + 1);
11715 	} else if (strchr(cmdname, '=')) {
11716 		verify(find_command_idx("set", &i) == 0);
11717 		current_command = &command_table[i];
11718 		ret = command_table[i].func(argc, newargv);
11719 	} else if (strcmp(cmdname, "freeze") == 0 && argc == 3) {
11720 		/*
11721 		 * 'freeze' is a vile debugging abomination, so we treat
11722 		 * it as such.
11723 		 */
11724 		zfs_cmd_t zc = {"\0"};
11725 
11726 		(void) strlcpy(zc.zc_name, argv[2], sizeof (zc.zc_name));
11727 		ret = zfs_ioctl(g_zfs, ZFS_IOC_POOL_FREEZE, &zc);
11728 		if (ret != 0) {
11729 			(void) fprintf(stderr,
11730 			gettext("failed to freeze pool: %d\n"), errno);
11731 			ret = 1;
11732 		}
11733 
11734 		log_history = 0;
11735 	} else {
11736 		(void) fprintf(stderr, gettext("unrecognized "
11737 		    "command '%s'\n"), cmdname);
11738 		usage(B_FALSE);
11739 		ret = 1;
11740 	}
11741 
11742 	for (i = 0; i < argc; i++)
11743 		free(newargv[i]);
11744 	free(newargv);
11745 
11746 	if (ret == 0 && log_history)
11747 		(void) zpool_log_history(g_zfs, history_str);
11748 
11749 	libzfs_fini(g_zfs);
11750 
11751 	/*
11752 	 * The 'ZFS_ABORT' environment variable causes us to dump core on exit
11753 	 * for the purposes of running ::findleaks.
11754 	 */
11755 	if (getenv("ZFS_ABORT") != NULL) {
11756 		(void) printf("dumping core by request\n");
11757 		abort();
11758 	}
11759 
11760 	return (ret);
11761 }
11762