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