cddl/contrib/opensolaris/cmd/zpool/zpool_main.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21
  22 /*
  23  * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
  24  * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
  25  * Copyright (c) 2012 by Delphix. All rights reserved.
  26  * Copyright (c) 2012 by Frederik Wessels. All rights reserved.
  27  * Copyright (c) 2012 Martin Matuska <mm@FreeBSD.org>. All rights reserved.
  28  * Copyright (c) 2013 by Prasad Joshi (sTec). All rights reserved.
  29  */
  30
  31 #include <solaris.h>
  32 #include <assert.h>
  33 #include <ctype.h>
  34 #include <dirent.h>
  35 #include <errno.h>
  36 #include <fcntl.h>
  37 #include <libgen.h>
  38 #include <libintl.h>
  39 #include <libuutil.h>
  40 #include <locale.h>
  41 #include <stdio.h>
  42 #include <stdlib.h>
  43 #include <string.h>
  44 #include <strings.h>
  45 #include <unistd.h>
  46 #include <priv.h>
  47 #include <pwd.h>
  48 #include <zone.h>
  49 #include <sys/time.h>
  50 #include <zfs_prop.h>
  51 #include <sys/fs/zfs.h>
  52 #include <sys/stat.h>
  53
  54 #include <libzfs.h>
  55
  56 #include "zpool_util.h"
  57 #include "zfs_comutil.h"
  58 #include "zfeature_common.h"
  59
  60 #include "statcommon.h"
  61
  62 static int zpool_do_create(int, char **);
  63 static int zpool_do_destroy(int, char **);
  64
  65 static int zpool_do_add(int, char **);
  66 static int zpool_do_remove(int, char **);
  67 static int zpool_do_labelclear(int, char **);
  68
  69 static int zpool_do_list(int, char **);
  70 static int zpool_do_iostat(int, char **);
  71 static int zpool_do_status(int, char **);
  72
  73 static int zpool_do_online(int, char **);
  74 static int zpool_do_offline(int, char **);
  75 static int zpool_do_clear(int, char **);
  76 static int zpool_do_reopen(int, char **);
  77
  78 static int zpool_do_reguid(int, char **);
  79
  80 static int zpool_do_attach(int, char **);
  81 static int zpool_do_detach(int, char **);
  82 static int zpool_do_replace(int, char **);
  83 static int zpool_do_split(int, char **);
  84
  85 static int zpool_do_scrub(int, char **);
  86
  87 static int zpool_do_import(int, char **);
  88 static int zpool_do_export(int, char **);
  89
  90 static int zpool_do_upgrade(int, char **);
  91
  92 static int zpool_do_history(int, char **);
  93
  94 static int zpool_do_get(int, char **);
  95 static int zpool_do_set(int, char **);
  96
  97 /*
  98  * These libumem hooks provide a reasonable set of defaults for the allocator's
  99  * debugging facilities.
 100  */
 101
 102 #ifdef DEBUG
 103 const char *
 104 _umem_debug_init(void)
 105 {
 106         return ("default,verbose"); /* $UMEM_DEBUG setting */
 107 }
 108
 109 const char *
 110 _umem_logging_init(void)
 111 {
 112         return ("fail,contents"); /* $UMEM_LOGGING setting */
 113 }
 114 #endif
 115
 116 typedef enum {
 117         HELP_ADD,
 118         HELP_ATTACH,
 119         HELP_CLEAR,
 120         HELP_CREATE,
 121         HELP_DESTROY,
 122         HELP_DETACH,
 123         HELP_EXPORT,
 124         HELP_HISTORY,
 125         HELP_IMPORT,
 126         HELP_IOSTAT,
 127         HELP_LABELCLEAR,
 128         HELP_LIST,
 129         HELP_OFFLINE,
 130         HELP_ONLINE,
 131         HELP_REPLACE,
 132         HELP_REMOVE,
 133         HELP_SCRUB,
 134         HELP_STATUS,
 135         HELP_UPGRADE,
 136         HELP_GET,
 137         HELP_SET,
 138         HELP_SPLIT,
 139         HELP_REGUID,
 140         HELP_REOPEN
 141 } zpool_help_t;
 142
 143
 144 typedef struct zpool_command {
 145         const char      *name;
 146         int             (*func)(int, char **);
 147         zpool_help_t    usage;
 148 } zpool_command_t;
 149
 150 /*
 151  * Master command table.  Each ZFS command has a name, associated function, and
 152  * usage message.  The usage messages need to be internationalized, so we have
 153  * to have a function to return the usage message based on a command index.
 154  *
 155  * These commands are organized according to how they are displayed in the usage
 156  * message.  An empty command (one with a NULL name) indicates an empty line in
 157  * the generic usage message.
 158  */
 159 static zpool_command_t command_table[] = {
 160         { "create",     zpool_do_create,        HELP_CREATE             },
 161         { "destroy",    zpool_do_destroy,       HELP_DESTROY            },
 162         { NULL },
 163         { "add",        zpool_do_add,           HELP_ADD                },
 164         { "remove",     zpool_do_remove,        HELP_REMOVE             },
 165         { NULL },
 166         { "labelclear", zpool_do_labelclear,    HELP_LABELCLEAR         },
 167         { NULL },
 168         { "list",       zpool_do_list,          HELP_LIST               },
 169         { "iostat",     zpool_do_iostat,        HELP_IOSTAT             },
 170         { "status",     zpool_do_status,        HELP_STATUS             },
 171         { NULL },
 172         { "online",     zpool_do_online,        HELP_ONLINE             },
 173         { "offline",    zpool_do_offline,       HELP_OFFLINE            },
 174         { "clear",      zpool_do_clear,         HELP_CLEAR              },
 175         { "reopen",     zpool_do_reopen,        HELP_REOPEN             },
 176         { NULL },
 177         { "attach",     zpool_do_attach,        HELP_ATTACH             },
 178         { "detach",     zpool_do_detach,        HELP_DETACH             },
 179         { "replace",    zpool_do_replace,       HELP_REPLACE            },
 180         { "split",      zpool_do_split,         HELP_SPLIT              },
 181         { NULL },
 182         { "scrub",      zpool_do_scrub,         HELP_SCRUB              },
 183         { NULL },
 184         { "import",     zpool_do_import,        HELP_IMPORT             },
 185         { "export",     zpool_do_export,        HELP_EXPORT             },
 186         { "upgrade",    zpool_do_upgrade,       HELP_UPGRADE            },
 187         { "reguid",     zpool_do_reguid,        HELP_REGUID             },
 188         { NULL },
 189         { "history",    zpool_do_history,       HELP_HISTORY            },
 190         { "get",        zpool_do_get,           HELP_GET                },
 191         { "set",        zpool_do_set,           HELP_SET                },
 192 };
 193
 194 #define NCOMMAND        (sizeof (command_table) / sizeof (command_table[0]))
 195
 196 static zpool_command_t *current_command;
 197 static char history_str[HIS_MAX_RECORD_LEN];
 198 static boolean_t log_history = B_TRUE;
 199 static uint_t timestamp_fmt = NODATE;
 200
 201 static const char *
 202 get_usage(zpool_help_t idx) {
 203         switch (idx) {
 204         case HELP_ADD:
 205                 return (gettext("\tadd [-fn] <pool> <vdev> ...\n"));
 206         case HELP_ATTACH:
 207                 return (gettext("\tattach [-f] <pool> <device> "
 208                     "<new-device>\n"));
 209         case HELP_CLEAR:
 210                 return (gettext("\tclear [-nF] <pool> [device]\n"));
 211         case HELP_CREATE:
 212                 return (gettext("\tcreate [-fnd] [-o property=value] ... \n"
 213                     "\t    [-O file-system-property=value] ... \n"
 214                     "\t    [-m mountpoint] [-R root] <pool> <vdev> ...\n"));
 215         case HELP_DESTROY:
 216                 return (gettext("\tdestroy [-f] <pool>\n"));
 217         case HELP_DETACH:
 218                 return (gettext("\tdetach <pool> <device>\n"));
 219         case HELP_EXPORT:
 220                 return (gettext("\texport [-f] <pool> ...\n"));
 221         case HELP_HISTORY:
 222                 return (gettext("\thistory [-il] [<pool>] ...\n"));
 223         case HELP_IMPORT:
 224                 return (gettext("\timport [-d dir] [-D]\n"
 225                     "\timport [-d dir | -c cachefile] [-F [-n]] <pool | id>\n"
 226                     "\timport [-o mntopts] [-o property=value] ... \n"
 227                     "\t    [-d dir | -c cachefile] [-D] [-f] [-m] [-N] "
 228                     "[-R root] [-F [-n]] -a\n"
 229                     "\timport [-o mntopts] [-o property=value] ... \n"
 230                     "\t    [-d dir | -c cachefile] [-D] [-f] [-m] [-N] "
 231                     "[-R root] [-F [-n]]\n"
 232                     "\t    <pool | id> [newpool]\n"));
 233         case HELP_IOSTAT:
 234                 return (gettext("\tiostat [-v] [-T d|u] [pool] ... [interval "
 235                     "[count]]\n"));
 236         case HELP_LABELCLEAR:
 237                 return (gettext("\tlabelclear [-f] <vdev>\n"));
 238         case HELP_LIST:
 239                 return (gettext("\tlist [-Hv] [-o property[,...]] "
 240                     "[-T d|u] [pool] ... [interval [count]]\n"));
 241         case HELP_OFFLINE:
 242                 return (gettext("\toffline [-t] <pool> <device> ...\n"));
 243         case HELP_ONLINE:
 244                 return (gettext("\tonline [-e] <pool> <device> ...\n"));
 245         case HELP_REPLACE:
 246                 return (gettext("\treplace [-f] <pool> <device> "
 247                     "[new-device]\n"));
 248         case HELP_REMOVE:
 249                 return (gettext("\tremove <pool> <device> ...\n"));
 250         case HELP_REOPEN:
 251                 return (""); /* Undocumented command */
 252         case HELP_SCRUB:
 253                 return (gettext("\tscrub [-s] <pool> ...\n"));
 254         case HELP_STATUS:
 255                 return (gettext("\tstatus [-vx] [-T d|u] [pool] ... [interval "
 256                     "[count]]\n"));
 257         case HELP_UPGRADE:
 258                 return (gettext("\tupgrade [-v]\n"
 259                     "\tupgrade [-V version] <-a | pool ...>\n"));
 260         case HELP_GET:
 261                 return (gettext("\tget <\"all\" | property[,...]> "
 262                     "<pool> ...\n"));
 263         case HELP_SET:
 264                 return (gettext("\tset <property=value> <pool> \n"));
 265         case HELP_SPLIT:
 266                 return (gettext("\tsplit [-n] [-R altroot] [-o mntopts]\n"
 267                     "\t    [-o property=value] <pool> <newpool> "
 268                     "[<device> ...]\n"));
 269         case HELP_REGUID:
 270                 return (gettext("\treguid <pool>\n"));
 271         }
 272
 273         abort();
 274         /* NOTREACHED */
 275 }
 276
 277
 278 /*
 279  * Callback routine that will print out a pool property value.
 280  */
 281 static int
 282 print_prop_cb(int prop, void *cb)
 283 {
 284         FILE *fp = cb;
 285
 286         (void) fprintf(fp, "\t%-15s  ", zpool_prop_to_name(prop));
 287
 288         if (zpool_prop_readonly(prop))
 289                 (void) fprintf(fp, "  NO   ");
 290         else
 291                 (void) fprintf(fp, " YES   ");
 292
 293         if (zpool_prop_values(prop) == NULL)
 294                 (void) fprintf(fp, "-\n");
 295         else
 296                 (void) fprintf(fp, "%s\n", zpool_prop_values(prop));
 297
 298         return (ZPROP_CONT);
 299 }
 300
 301 /*
 302  * Display usage message.  If we're inside a command, display only the usage for
 303  * that command.  Otherwise, iterate over the entire command table and display
 304  * a complete usage message.
 305  */
 306 void
 307 usage(boolean_t requested)
 308 {
 309         FILE *fp = requested ? stdout : stderr;
 310
 311         if (current_command == NULL) {
 312                 int i;
 313
 314                 (void) fprintf(fp, gettext("usage: zpool command args ...\n"));
 315                 (void) fprintf(fp,
 316                     gettext("where 'command' is one of the following:\n\n"));
 317
 318                 for (i = 0; i < NCOMMAND; i++) {
 319                         if (command_table[i].name == NULL)
 320                                 (void) fprintf(fp, "\n");
 321                         else
 322                                 (void) fprintf(fp, "%s",
 323                                     get_usage(command_table[i].usage));
 324                 }
 325         } else {
 326                 (void) fprintf(fp, gettext("usage:\n"));
 327                 (void) fprintf(fp, "%s", get_usage(current_command->usage));
 328         }
 329
 330         if (current_command != NULL &&
 331             ((strcmp(current_command->name, "set") == 0) ||
 332             (strcmp(current_command->name, "get") == 0) ||
 333             (strcmp(current_command->name, "list") == 0))) {
 334
 335                 (void) fprintf(fp,
 336                     gettext("\nthe following properties are supported:\n"));
 337
 338                 (void) fprintf(fp, "\n\t%-15s  %s   %s\n\n",
 339                     "PROPERTY", "EDIT", "VALUES");
 340
 341                 /* Iterate over all properties */
 342                 (void) zprop_iter(print_prop_cb, fp, B_FALSE, B_TRUE,
 343                     ZFS_TYPE_POOL);
 344
 345                 (void) fprintf(fp, "\t%-15s   ", "feature@...");
 346                 (void) fprintf(fp, "YES   disabled | enabled | active\n");
 347
 348                 (void) fprintf(fp, gettext("\nThe feature@ properties must be "
 349                     "appended with a feature name.\nSee zpool-features(7).\n"));
 350         }
 351
 352         /*
 353          * See comments at end of main().
 354          */
 355         if (getenv("ZFS_ABORT") != NULL) {
 356                 (void) printf("dumping core by request\n");
 357                 abort();
 358         }
 359
 360         exit(requested ? 0 : 2);
 361 }
 362
 363 void
 364 print_vdev_tree(zpool_handle_t *zhp, const char *name, nvlist_t *nv, int indent,
 365     boolean_t print_logs)
 366 {
 367         nvlist_t **child;
 368         uint_t c, children;
 369         char *vname;
 370
 371         if (name != NULL)
 372                 (void) printf("\t%*s%s\n", indent, "", name);
 373
 374         if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
 375             &child, &children) != 0)
 376                 return;
 377
 378         for (c = 0; c < children; c++) {
 379                 uint64_t is_log = B_FALSE;
 380
 381                 (void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_LOG,
 382                     &is_log);
 383                 if ((is_log && !print_logs) || (!is_log && print_logs))
 384                         continue;
 385
 386                 vname = zpool_vdev_name(g_zfs, zhp, child[c], B_FALSE);
 387                 print_vdev_tree(zhp, vname, child[c], indent + 2,
 388                     B_FALSE);
 389                 free(vname);
 390         }
 391 }
 392
 393 static boolean_t
 394 prop_list_contains_feature(nvlist_t *proplist)
 395 {
 396         nvpair_t *nvp;
 397         for (nvp = nvlist_next_nvpair(proplist, NULL); NULL != nvp;
 398             nvp = nvlist_next_nvpair(proplist, nvp)) {
 399                 if (zpool_prop_feature(nvpair_name(nvp)))
 400                         return (B_TRUE);
 401         }
 402         return (B_FALSE);
 403 }
 404
 405 /*
 406  * Add a property pair (name, string-value) into a property nvlist.
 407  */
 408 static int
 409 add_prop_list(const char *propname, char *propval, nvlist_t **props,
 410     boolean_t poolprop)
 411 {
 412         zpool_prop_t prop = ZPROP_INVAL;
 413         zfs_prop_t fprop;
 414         nvlist_t *proplist;
 415         const char *normnm;
 416         char *strval;
 417
 418         if (*props == NULL &&
 419             nvlist_alloc(props, NV_UNIQUE_NAME, 0) != 0) {
 420                 (void) fprintf(stderr,
 421                     gettext("internal error: out of memory\n"));
 422                 return (1);
 423         }
 424
 425         proplist = *props;
 426
 427         if (poolprop) {
 428                 const char *vname = zpool_prop_to_name(ZPOOL_PROP_VERSION);
 429
 430                 if ((prop = zpool_name_to_prop(propname)) == ZPROP_INVAL &&
 431                     !zpool_prop_feature(propname)) {
 432                         (void) fprintf(stderr, gettext("property '%s' is "
 433                             "not a valid pool property\n"), propname);
 434                         return (2);
 435                 }
 436
 437                 /*
 438                  * feature@ properties and version should not be specified
 439                  * at the same time.
 440                  */
 441                 if ((prop == ZPROP_INVAL && zpool_prop_feature(propname) &&
 442                     nvlist_exists(proplist, vname)) ||
 443                     (prop == ZPOOL_PROP_VERSION &&
 444                     prop_list_contains_feature(proplist))) {
 445                         (void) fprintf(stderr, gettext("'feature@' and "
 446                             "'version' properties cannot be specified "
 447                             "together\n"));
 448                         return (2);
 449                 }
 450
 451
 452                 if (zpool_prop_feature(propname))
 453                         normnm = propname;
 454                 else
 455                         normnm = zpool_prop_to_name(prop);
 456         } else {
 457                 if ((fprop = zfs_name_to_prop(propname)) != ZPROP_INVAL) {
 458                         normnm = zfs_prop_to_name(fprop);
 459                 } else {
 460                         normnm = propname;
 461                 }
 462         }
 463
 464         if (nvlist_lookup_string(proplist, normnm, &strval) == 0 &&
 465             prop != ZPOOL_PROP_CACHEFILE) {
 466                 (void) fprintf(stderr, gettext("property '%s' "
 467                     "specified multiple times\n"), propname);
 468                 return (2);
 469         }
 470
 471         if (nvlist_add_string(proplist, normnm, propval) != 0) {
 472                 (void) fprintf(stderr, gettext("internal "
 473                     "error: out of memory\n"));
 474                 return (1);
 475         }
 476
 477         return (0);
 478 }
 479
 480 /*
 481  * zpool add [-fn] <pool> <vdev> ...
 482  *
 483  *      -f      Force addition of devices, even if they appear in use
 484  *      -n      Do not add the devices, but display the resulting layout if
 485  *              they were to be added.
 486  *
 487  * Adds the given vdevs to 'pool'.  As with create, the bulk of this work is
 488  * handled by get_vdev_spec(), which constructs the nvlist needed to pass to
 489  * libzfs.
 490  */
 491 int
 492 zpool_do_add(int argc, char **argv)
 493 {
 494         boolean_t force = B_FALSE;
 495         boolean_t dryrun = B_FALSE;
 496         int c;
 497         nvlist_t *nvroot;
 498         char *poolname;
 499         int ret;
 500         zpool_handle_t *zhp;
 501         nvlist_t *config;
 502
 503         /* check options */
 504         while ((c = getopt(argc, argv, "fn")) != -1) {
 505                 switch (c) {
 506                 case 'f':
 507                         force = B_TRUE;
 508                         break;
 509                 case 'n':
 510                         dryrun = B_TRUE;
 511                         break;
 512                 case '?':
 513                         (void) fprintf(stderr, gettext("invalid option '%c'\n"),
 514                             optopt);
 515                         usage(B_FALSE);
 516                 }
 517         }
 518
 519         argc -= optind;
 520         argv += optind;
 521
 522         /* get pool name and check number of arguments */
 523         if (argc < 1) {
 524                 (void) fprintf(stderr, gettext("missing pool name argument\n"));
 525                 usage(B_FALSE);
 526         }
 527         if (argc < 2) {
 528                 (void) fprintf(stderr, gettext("missing vdev specification\n"));
 529                 usage(B_FALSE);
 530         }
 531
 532         poolname = argv[0];
 533
 534         argc--;
 535         argv++;
 536
 537         if ((zhp = zpool_open(g_zfs, poolname)) == NULL)
 538                 return (1);
 539
 540         if ((config = zpool_get_config(zhp, NULL)) == NULL) {
 541                 (void) fprintf(stderr, gettext("pool '%s' is unavailable\n"),
 542                     poolname);
 543                 zpool_close(zhp);
 544                 return (1);
 545         }
 546
 547         /* pass off to get_vdev_spec for processing */
 548         nvroot = make_root_vdev(zhp, force, !force, B_FALSE, dryrun,
 549             argc, argv);
 550         if (nvroot == NULL) {
 551                 zpool_close(zhp);
 552                 return (1);
 553         }
 554
 555         if (dryrun) {
 556                 nvlist_t *poolnvroot;
 557
 558                 verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
 559                     &poolnvroot) == 0);
 560
 561                 (void) printf(gettext("would update '%s' to the following "
 562                     "configuration:\n"), zpool_get_name(zhp));
 563
 564                 /* print original main pool and new tree */
 565                 print_vdev_tree(zhp, poolname, poolnvroot, 0, B_FALSE);
 566                 print_vdev_tree(zhp, NULL, nvroot, 0, B_FALSE);
 567
 568                 /* Do the same for the logs */
 569                 if (num_logs(poolnvroot) > 0) {
 570                         print_vdev_tree(zhp, "logs", poolnvroot, 0, B_TRUE);
 571                         print_vdev_tree(zhp, NULL, nvroot, 0, B_TRUE);
 572                 } else if (num_logs(nvroot) > 0) {
 573                         print_vdev_tree(zhp, "logs", nvroot, 0, B_TRUE);
 574                 }
 575
 576                 ret = 0;
 577         } else {
 578                 ret = (zpool_add(zhp, nvroot) != 0);
 579         }
 580
 581         nvlist_free(nvroot);
 582         zpool_close(zhp);
 583
 584         return (ret);
 585 }
 586
 587 /*
 588  * zpool remove  <pool> <vdev> ...
 589  *
 590  * Removes the given vdev from the pool.  Currently, this supports removing
 591  * spares, cache, and log devices from the pool.
 592  */
 593 int
 594 zpool_do_remove(int argc, char **argv)
 595 {
 596         char *poolname;
 597         int i, ret = 0;
 598         zpool_handle_t *zhp;
 599
 600         argc--;
 601         argv++;
 602
 603         /* get pool name and check number of arguments */
 604         if (argc < 1) {
 605                 (void) fprintf(stderr, gettext("missing pool name argument\n"));
 606                 usage(B_FALSE);
 607         }
 608         if (argc < 2) {
 609                 (void) fprintf(stderr, gettext("missing device\n"));
 610                 usage(B_FALSE);
 611         }
 612
 613         poolname = argv[0];
 614
 615         if ((zhp = zpool_open(g_zfs, poolname)) == NULL)
 616                 return (1);
 617
 618         for (i = 1; i < argc; i++) {
 619                 if (zpool_vdev_remove(zhp, argv[i]) != 0)
 620                         ret = 1;
 621         }
 622
 623         return (ret);
 624 }
 625
 626 /*
 627  * zpool labelclear <vdev>
 628  *
 629  * Verifies that the vdev is not active and zeros out the label information
 630  * on the device.
 631  */
 632 int
 633 zpool_do_labelclear(int argc, char **argv)
 634 {
 635         char *vdev, *name;
 636         int c, fd = -1, ret = 0;
 637         pool_state_t state;
 638         boolean_t inuse = B_FALSE;
 639         boolean_t force = B_FALSE;
 640
 641         /* check options */
 642         while ((c = getopt(argc, argv, "f")) != -1) {
 643                 switch (c) {
 644                 case 'f':
 645                         force = B_TRUE;
 646                         break;
 647                 default:
 648                         (void) fprintf(stderr, gettext("invalid option '%c'\n"),
 649                             optopt);
 650                         usage(B_FALSE);
 651                 }
 652         }
 653
 654         argc -= optind;
 655         argv += optind;
 656
 657         /* get vdev name */
 658         if (argc < 1) {
 659                 (void) fprintf(stderr, gettext("missing vdev device name\n"));
 660                 usage(B_FALSE);
 661         }
 662
 663         vdev = argv[0];
 664         if ((fd = open(vdev, O_RDWR)) < 0) {
 665                 (void) fprintf(stderr, gettext("Unable to open %s\n"), vdev);
 666                 return (B_FALSE);
 667         }
 668
 669         name = NULL;
 670         if (zpool_in_use(g_zfs, fd, &state, &name, &inuse) != 0) {
 671                 if (force)
 672                         goto wipe_label;
 673
 674                 (void) fprintf(stderr,
 675                     gettext("Unable to determine pool state for %s\n"
 676                     "Use -f to force the clearing any label data\n"), vdev);
 677
 678                 return (1);
 679         }
 680
 681         if (inuse) {
 682                 switch (state) {
 683                 default:
 684                 case POOL_STATE_ACTIVE:
 685                 case POOL_STATE_SPARE:
 686                 case POOL_STATE_L2CACHE:
 687                         (void) fprintf(stderr,
 688 gettext("labelclear operation failed.\n"
 689         "\tVdev %s is a member (%s), of pool \"%s\".\n"
 690         "\tTo remove label information from this device, export or destroy\n"
 691         "\tthe pool, or remove %s from the configuration of this pool\n"
 692         "\tand retry the labelclear operation\n"),
 693                             vdev, zpool_pool_state_to_name(state), name, vdev);
 694                         ret = 1;
 695                         goto errout;
 696
 697                 case POOL_STATE_EXPORTED:
 698                         if (force)
 699                                 break;
 700
 701                         (void) fprintf(stderr,
 702 gettext("labelclear operation failed.\n"
 703         "\tVdev %s is a member of the exported pool \"%s\".\n"
 704         "\tUse \"zpool labelclear -f %s\" to force the removal of label\n"
 705         "\tinformation.\n"),
 706                             vdev, name, vdev);
 707                         ret = 1;
 708                         goto errout;
 709
 710                 case POOL_STATE_POTENTIALLY_ACTIVE:
 711                         if (force)
 712                                 break;
 713
 714                         (void) fprintf(stderr,
 715 gettext("labelclear operation failed.\n"
 716         "\tVdev %s is a member of the pool \"%s\".\n"
 717         "\tThis pool is unknown to this system, but may be active on\n"
 718         "\tanother system. Use \'zpool labelclear -f %s\' to force the\n"
 719         "\tremoval of label information.\n"),
 720                             vdev, name, vdev);
 721                         ret = 1;
 722                         goto errout;
 723
 724                 case POOL_STATE_DESTROYED:
 725                         /* inuse should never be set for a destoryed pool... */
 726                         break;
 727                 }
 728         }
 729
 730 wipe_label:
 731         if (zpool_clear_label(fd) != 0) {
 732                 (void) fprintf(stderr,
 733                     gettext("Label clear failed on vdev %s\n"), vdev);
 734                 ret = 1;
 735         }
 736
 737 errout:
 738         close(fd);
 739         if (name != NULL)
 740                 free(name);
 741
 742         return (ret);
 743 }
 744
 745 /*
 746  * zpool create [-fnd] [-o property=value] ...
 747  *              [-O file-system-property=value] ...
 748  *              [-R root] [-m mountpoint] <pool> <dev> ...
 749  *
 750  *      -f      Force creation, even if devices appear in use
 751  *      -n      Do not create the pool, but display the resulting layout if it
 752  *              were to be created.
 753  *      -R      Create a pool under an alternate root
 754  *      -m      Set default mountpoint for the root dataset.  By default it's
 755  *              '/<pool>'
 756  *      -o      Set property=value.
 757  *      -d      Don't automatically enable all supported pool features
 758  *              (individual features can be enabled with -o).
 759  *      -O      Set fsproperty=value in the pool's root file system
 760  *
 761  * Creates the named pool according to the given vdev specification.  The
 762  * bulk of the vdev processing is done in get_vdev_spec() in zpool_vdev.c.  Once
 763  * we get the nvlist back from get_vdev_spec(), we either print out the contents
 764  * (if '-n' was specified), or pass it to libzfs to do the creation.
 765  */
 766 int
 767 zpool_do_create(int argc, char **argv)
 768 {
 769         boolean_t force = B_FALSE;
 770         boolean_t dryrun = B_FALSE;
 771         boolean_t enable_all_pool_feat = B_TRUE;
 772         int c;
 773         nvlist_t *nvroot = NULL;
 774         char *poolname;
 775         int ret = 1;
 776         char *altroot = NULL;
 777         char *mountpoint = NULL;
 778         nvlist_t *fsprops = NULL;
 779         nvlist_t *props = NULL;
 780         char *propval;
 781
 782         /* check options */
 783         while ((c = getopt(argc, argv, ":fndR:m:o:O:")) != -1) {
 784                 switch (c) {
 785                 case 'f':
 786                         force = B_TRUE;
 787                         break;
 788                 case 'n':
 789                         dryrun = B_TRUE;
 790                         break;
 791                 case 'd':
 792                         enable_all_pool_feat = B_FALSE;
 793                         break;
 794                 case 'R':
 795                         altroot = optarg;
 796                         if (add_prop_list(zpool_prop_to_name(
 797                             ZPOOL_PROP_ALTROOT), optarg, &props, B_TRUE))
 798                                 goto errout;
 799                         if (nvlist_lookup_string(props,
 800                             zpool_prop_to_name(ZPOOL_PROP_CACHEFILE),
 801                             &propval) == 0)
 802                                 break;
 803                         if (add_prop_list(zpool_prop_to_name(
 804                             ZPOOL_PROP_CACHEFILE), "none", &props, B_TRUE))
 805                                 goto errout;
 806                         break;
 807                 case 'm':
 808                         /* Equivalent to -O mountpoint=optarg */
 809                         mountpoint = optarg;
 810                         break;
 811                 case 'o':
 812                         if ((propval = strchr(optarg, '=')) == NULL) {
 813                                 (void) fprintf(stderr, gettext("missing "
 814                                     "'=' for -o option\n"));
 815                                 goto errout;
 816                         }
 817                         *propval = '\0';
 818                         propval++;
 819
 820                         if (add_prop_list(optarg, propval, &props, B_TRUE))
 821                                 goto errout;
 822
 823                         /*
 824                          * If the user is creating a pool that doesn't support
 825                          * feature flags, don't enable any features.
 826                          */
 827                         if (zpool_name_to_prop(optarg) == ZPOOL_PROP_VERSION) {
 828                                 char *end;
 829                                 u_longlong_t ver;
 830
 831                                 ver = strtoull(propval, &end, 10);
 832                                 if (*end == '\0' &&
 833                                     ver < SPA_VERSION_FEATURES) {
 834                                         enable_all_pool_feat = B_FALSE;
 835                                 }
 836                         }
 837                         break;
 838                 case 'O':
 839                         if ((propval = strchr(optarg, '=')) == NULL) {
 840                                 (void) fprintf(stderr, gettext("missing "
 841                                     "'=' for -O option\n"));
 842                                 goto errout;
 843                         }
 844                         *propval = '\0';
 845                         propval++;
 846
 847                         /*
 848                          * Mountpoints are checked and then added later.
 849                          * Uniquely among properties, they can be specified
 850                          * more than once, to avoid conflict with -m.
 851                          */
 852                         if (0 == strcmp(optarg,
 853                             zfs_prop_to_name(ZFS_PROP_MOUNTPOINT))) {
 854                                 mountpoint = propval;
 855                         } else if (add_prop_list(optarg, propval, &fsprops,
 856                             B_FALSE)) {
 857                                 goto errout;
 858                         }
 859                         break;
 860                 case ':':
 861                         (void) fprintf(stderr, gettext("missing argument for "
 862                             "'%c' option\n"), optopt);
 863                         goto badusage;
 864                 case '?':
 865                         (void) fprintf(stderr, gettext("invalid option '%c'\n"),
 866                             optopt);
 867                         goto badusage;
 868                 }
 869         }
 870
 871         argc -= optind;
 872         argv += optind;
 873
 874         /* get pool name and check number of arguments */
 875         if (argc < 1) {
 876                 (void) fprintf(stderr, gettext("missing pool name argument\n"));
 877                 goto badusage;
 878         }
 879         if (argc < 2) {
 880                 (void) fprintf(stderr, gettext("missing vdev specification\n"));
 881                 goto badusage;
 882         }
 883
 884         poolname = argv[0];
 885
 886         /*
 887          * As a special case, check for use of '/' in the name, and direct the
 888          * user to use 'zfs create' instead.
 889          */
 890         if (strchr(poolname, '/') != NULL) {
 891                 (void) fprintf(stderr, gettext("cannot create '%s': invalid "
 892                     "character '/' in pool name\n"), poolname);
 893                 (void) fprintf(stderr, gettext("use 'zfs create' to "
 894                     "create a dataset\n"));
 895                 goto errout;
 896         }
 897
 898         /* pass off to get_vdev_spec for bulk processing */
 899         nvroot = make_root_vdev(NULL, force, !force, B_FALSE, dryrun,
 900             argc - 1, argv + 1);
 901         if (nvroot == NULL)
 902                 goto errout;
 903
 904         /* make_root_vdev() allows 0 toplevel children if there are spares */
 905         if (!zfs_allocatable_devs(nvroot)) {
 906                 (void) fprintf(stderr, gettext("invalid vdev "
 907                     "specification: at least one toplevel vdev must be "
 908                     "specified\n"));
 909                 goto errout;
 910         }
 911
 912         if (altroot != NULL && altroot[0] != '/') {
 913                 (void) fprintf(stderr, gettext("invalid alternate root '%s': "
 914                     "must be an absolute path\n"), altroot);
 915                 goto errout;
 916         }
 917
 918         /*
 919          * Check the validity of the mountpoint and direct the user to use the
 920          * '-m' mountpoint option if it looks like its in use.
 921          * Ignore the checks if the '-f' option is given.
 922          */
 923         if (!force && (mountpoint == NULL ||
 924             (strcmp(mountpoint, ZFS_MOUNTPOINT_LEGACY) != 0 &&
 925             strcmp(mountpoint, ZFS_MOUNTPOINT_NONE) != 0))) {
 926                 char buf[MAXPATHLEN];
 927                 DIR *dirp;
 928
 929                 if (mountpoint && mountpoint[0] != '/') {
 930                         (void) fprintf(stderr, gettext("invalid mountpoint "
 931                             "'%s': must be an absolute path, 'legacy', or "
 932                             "'none'\n"), mountpoint);
 933                         goto errout;
 934                 }
 935
 936                 if (mountpoint == NULL) {
 937                         if (altroot != NULL)
 938                                 (void) snprintf(buf, sizeof (buf), "%s/%s",
 939                                     altroot, poolname);
 940                         else
 941                                 (void) snprintf(buf, sizeof (buf), "/%s",
 942                                     poolname);
 943                 } else {
 944                         if (altroot != NULL)
 945                                 (void) snprintf(buf, sizeof (buf), "%s%s",
 946                                     altroot, mountpoint);
 947                         else
 948                                 (void) snprintf(buf, sizeof (buf), "%s",
 949                                     mountpoint);
 950                 }
 951
 952                 if ((dirp = opendir(buf)) == NULL && errno != ENOENT) {
 953                         (void) fprintf(stderr, gettext("mountpoint '%s' : "
 954                             "%s\n"), buf, strerror(errno));
 955                         (void) fprintf(stderr, gettext("use '-m' "
 956                             "option to provide a different default\n"));
 957                         goto errout;
 958                 } else if (dirp) {
 959                         int count = 0;
 960
 961                         while (count < 3 && readdir(dirp) != NULL)
 962                                 count++;
 963                         (void) closedir(dirp);
 964
 965                         if (count > 2) {
 966                                 (void) fprintf(stderr, gettext("mountpoint "
 967                                     "'%s' exists and is not empty\n"), buf);
 968                                 (void) fprintf(stderr, gettext("use '-m' "
 969                                     "option to provide a "
 970                                     "different default\n"));
 971                                 goto errout;
 972                         }
 973                 }
 974         }
 975
 976         /*
 977          * Now that the mountpoint's validity has been checked, ensure that
 978          * the property is set appropriately prior to creating the pool.
 979          */
 980         if (mountpoint != NULL) {
 981                 ret = add_prop_list(zfs_prop_to_name(ZFS_PROP_MOUNTPOINT),
 982                     mountpoint, &fsprops, B_FALSE);
 983                 if (ret != 0)
 984                         goto errout;
 985         }
 986
 987         ret = 1;
 988         if (dryrun) {
 989                 /*
 990                  * For a dry run invocation, print out a basic message and run
 991                  * through all the vdevs in the list and print out in an
 992                  * appropriate hierarchy.
 993                  */
 994                 (void) printf(gettext("would create '%s' with the "
 995                     "following layout:\n\n"), poolname);
 996
 997                 print_vdev_tree(NULL, poolname, nvroot, 0, B_FALSE);
 998                 if (num_logs(nvroot) > 0)
 999                         print_vdev_tree(NULL, "logs", nvroot, 0, B_TRUE);
1000
1001                 ret = 0;
1002         } else {
1003                 /*
1004                  * Hand off to libzfs.
1005                  */
1006                 if (enable_all_pool_feat) {
1007                         int i;
1008                         for (i = 0; i < SPA_FEATURES; i++) {
1009                                 char propname[MAXPATHLEN];
1010                                 zfeature_info_t *feat = &spa_feature_table[i];
1011
1012                                 (void) snprintf(propname, sizeof (propname),
1013                                     "feature@%s", feat->fi_uname);
1014
1015                                 /*
1016                                  * Skip feature if user specified it manually
1017                                  * on the command line.
1018                                  */
1019                                 if (nvlist_exists(props, propname))
1020                                         continue;
1021
1022                                 ret = add_prop_list(propname,
1023                                     ZFS_FEATURE_ENABLED, &props, B_TRUE);
1024                                 if (ret != 0)
1025                                         goto errout;
1026                         }
1027                 }
1028
1029                 ret = 1;
1030                 if (zpool_create(g_zfs, poolname,
1031                     nvroot, props, fsprops) == 0) {
1032                         zfs_handle_t *pool = zfs_open(g_zfs, poolname,
1033                             ZFS_TYPE_FILESYSTEM);
1034                         if (pool != NULL) {
1035                                 if (zfs_mount(pool, NULL, 0) == 0)
1036                                         ret = zfs_shareall(pool);
1037                                 zfs_close(pool);
1038                         }
1039                 } else if (libzfs_errno(g_zfs) == EZFS_INVALIDNAME) {
1040                         (void) fprintf(stderr, gettext("pool name may have "
1041                             "been omitted\n"));
1042                 }
1043         }
1044
1045 errout:
1046         nvlist_free(nvroot);
1047         nvlist_free(fsprops);
1048         nvlist_free(props);
1049         return (ret);
1050 badusage:
1051         nvlist_free(fsprops);
1052         nvlist_free(props);
1053         usage(B_FALSE);
1054         return (2);
1055 }
1056
1057 /*
1058  * zpool destroy <pool>
1059  *
1060  *      -f      Forcefully unmount any datasets
1061  *
1062  * Destroy the given pool.  Automatically unmounts any datasets in the pool.
1063  */
1064 int
1065 zpool_do_destroy(int argc, char **argv)
1066 {
1067         boolean_t force = B_FALSE;
1068         int c;
1069         char *pool;
1070         zpool_handle_t *zhp;
1071         int ret;
1072
1073         /* check options */
1074         while ((c = getopt(argc, argv, "f")) != -1) {
1075                 switch (c) {
1076                 case 'f':
1077                         force = B_TRUE;
1078                         break;
1079                 case '?':
1080                         (void) fprintf(stderr, gettext("invalid option '%c'\n"),
1081                             optopt);
1082                         usage(B_FALSE);
1083                 }
1084         }
1085
1086         argc -= optind;
1087         argv += optind;
1088
1089         /* check arguments */
1090         if (argc < 1) {
1091                 (void) fprintf(stderr, gettext("missing pool argument\n"));
1092                 usage(B_FALSE);
1093         }
1094         if (argc > 1) {
1095                 (void) fprintf(stderr, gettext("too many arguments\n"));
1096                 usage(B_FALSE);
1097         }
1098
1099         pool = argv[0];
1100
1101         if ((zhp = zpool_open_canfail(g_zfs, pool)) == NULL) {
1102                 /*
1103                  * As a special case, check for use of '/' in the name, and
1104                  * direct the user to use 'zfs destroy' instead.
1105                  */
1106                 if (strchr(pool, '/') != NULL)
1107                         (void) fprintf(stderr, gettext("use 'zfs destroy' to "
1108                             "destroy a dataset\n"));
1109                 return (1);
1110         }
1111
1112         if (zpool_disable_datasets(zhp, force) != 0) {
1113                 (void) fprintf(stderr, gettext("could not destroy '%s': "
1114                     "could not unmount datasets\n"), zpool_get_name(zhp));
1115                 return (1);
1116         }
1117
1118         /* The history must be logged as part of the export */
1119         log_history = B_FALSE;
1120
1121         ret = (zpool_destroy(zhp, history_str) != 0);
1122
1123         zpool_close(zhp);
1124
1125         return (ret);
1126 }
1127
1128 /*
1129  * zpool export [-f] <pool> ...
1130  *
1131  *      -f      Forcefully unmount datasets
1132  *
1133  * Export the given pools.  By default, the command will attempt to cleanly
1134  * unmount any active datasets within the pool.  If the '-f' flag is specified,
1135  * then the datasets will be forcefully unmounted.
1136  */
1137 int
1138 zpool_do_export(int argc, char **argv)
1139 {
1140         boolean_t force = B_FALSE;
1141         boolean_t hardforce = B_FALSE;
1142         int c;
1143         zpool_handle_t *zhp;
1144         int ret;
1145         int i;
1146
1147         /* check options */
1148         while ((c = getopt(argc, argv, "fF")) != -1) {
1149                 switch (c) {
1150                 case 'f':
1151                         force = B_TRUE;
1152                         break;
1153                 case 'F':
1154                         hardforce = B_TRUE;
1155                         break;
1156                 case '?':
1157                         (void) fprintf(stderr, gettext("invalid option '%c'\n"),
1158                             optopt);
1159                         usage(B_FALSE);
1160                 }
1161         }
1162
1163         argc -= optind;
1164         argv += optind;
1165
1166         /* check arguments */
1167         if (argc < 1) {
1168                 (void) fprintf(stderr, gettext("missing pool argument\n"));
1169                 usage(B_FALSE);
1170         }
1171
1172         ret = 0;
1173         for (i = 0; i < argc; i++) {
1174                 if ((zhp = zpool_open_canfail(g_zfs, argv[i])) == NULL) {
1175                         ret = 1;
1176                         continue;
1177                 }
1178
1179                 if (zpool_disable_datasets(zhp, force) != 0) {
1180                         ret = 1;
1181                         zpool_close(zhp);
1182                         continue;
1183                 }
1184
1185                 /* The history must be logged as part of the export */
1186                 log_history = B_FALSE;
1187
1188                 if (hardforce) {
1189                         if (zpool_export_force(zhp, history_str) != 0)
1190                                 ret = 1;
1191                 } else if (zpool_export(zhp, force, history_str) != 0) {
1192                         ret = 1;
1193                 }
1194
1195                 zpool_close(zhp);
1196         }
1197
1198         return (ret);
1199 }
1200
1201 /*
1202  * Given a vdev configuration, determine the maximum width needed for the device
1203  * name column.
1204  */
1205 static int
1206 max_width(zpool_handle_t *zhp, nvlist_t *nv, int depth, int max)
1207 {
1208         char *name = zpool_vdev_name(g_zfs, zhp, nv, B_TRUE);
1209         nvlist_t **child;
1210         uint_t c, children;
1211         int ret;
1212
1213         if (strlen(name) + depth > max)
1214                 max = strlen(name) + depth;
1215
1216         free(name);
1217
1218         if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_SPARES,
1219             &child, &children) == 0) {
1220                 for (c = 0; c < children; c++)
1221                         if ((ret = max_width(zhp, child[c], depth + 2,
1222                             max)) > max)
1223                                 max = ret;
1224         }
1225
1226         if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_L2CACHE,
1227             &child, &children) == 0) {
1228                 for (c = 0; c < children; c++)
1229                         if ((ret = max_width(zhp, child[c], depth + 2,
1230                             max)) > max)
1231                                 max = ret;
1232         }
1233
1234         if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
1235             &child, &children) == 0) {
1236                 for (c = 0; c < children; c++)
1237                         if ((ret = max_width(zhp, child[c], depth + 2,
1238                             max)) > max)
1239                                 max = ret;
1240         }
1241
1242
1243         return (max);
1244 }
1245
1246 typedef struct spare_cbdata {
1247         uint64_t        cb_guid;
1248         zpool_handle_t  *cb_zhp;
1249 } spare_cbdata_t;
1250
1251 static boolean_t
1252 find_vdev(nvlist_t *nv, uint64_t search)
1253 {
1254         uint64_t guid;
1255         nvlist_t **child;
1256         uint_t c, children;
1257
1258         if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_GUID, &guid) == 0 &&
1259             search == guid)
1260                 return (B_TRUE);
1261
1262         if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
1263             &child, &children) == 0) {
1264                 for (c = 0; c < children; c++)
1265                         if (find_vdev(child[c], search))
1266                                 return (B_TRUE);
1267         }
1268
1269         return (B_FALSE);
1270 }
1271
1272 static int
1273 find_spare(zpool_handle_t *zhp, void *data)
1274 {
1275         spare_cbdata_t *cbp = data;
1276         nvlist_t *config, *nvroot;
1277
1278         config = zpool_get_config(zhp, NULL);
1279         verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
1280             &nvroot) == 0);
1281
1282         if (find_vdev(nvroot, cbp->cb_guid)) {
1283                 cbp->cb_zhp = zhp;
1284                 return (1);
1285         }
1286
1287         zpool_close(zhp);
1288         return (0);
1289 }
1290
1291 /*
1292  * Print out configuration state as requested by status_callback.
1293  */
1294 void
1295 print_status_config(zpool_handle_t *zhp, const char *name, nvlist_t *nv,
1296     int namewidth, int depth, boolean_t isspare)
1297 {
1298         nvlist_t **child;
1299         uint_t c, vsc, children;
1300         pool_scan_stat_t *ps = NULL;
1301         vdev_stat_t *vs;
1302         char rbuf[6], wbuf[6], cbuf[6];
1303         char *vname;
1304         uint64_t notpresent;
1305         uint64_t ashift;
1306         spare_cbdata_t cb;
1307         const char *state;
1308
1309         if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
1310             &child, &children) != 0)
1311                 children = 0;
1312
1313         verify(nvlist_lookup_uint64_array(nv, ZPOOL_CONFIG_VDEV_STATS,
1314             (uint64_t **)&vs, &vsc) == 0);
1315
1316         state = zpool_state_to_name(vs->vs_state, vs->vs_aux);
1317         if (isspare) {
1318                 /*
1319                  * For hot spares, we use the terms 'INUSE' and 'AVAILABLE' for
1320                  * online drives.
1321                  */
1322                 if (vs->vs_aux == VDEV_AUX_SPARED)
1323                         state = "INUSE";
1324                 else if (vs->vs_state == VDEV_STATE_HEALTHY)
1325                         state = "AVAIL";
1326         }
1327
1328         (void) printf("\t%*s%-*s  %-8s", depth, "", namewidth - depth,
1329             name, state);
1330
1331         if (!isspare) {
1332                 zfs_nicenum(vs->vs_read_errors, rbuf, sizeof (rbuf));
1333                 zfs_nicenum(vs->vs_write_errors, wbuf, sizeof (wbuf));
1334                 zfs_nicenum(vs->vs_checksum_errors, cbuf, sizeof (cbuf));
1335                 (void) printf(" %5s %5s %5s", rbuf, wbuf, cbuf);
1336         }
1337
1338         if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_NOT_PRESENT,
1339             &notpresent) == 0 ||
1340             vs->vs_state <= VDEV_STATE_CANT_OPEN) {
1341                 char *path;
1342                 if (nvlist_lookup_string(nv, ZPOOL_CONFIG_PATH, &path) == 0)
1343                         (void) printf("  was %s", path);
1344         } else if (vs->vs_aux != 0) {
1345                 (void) printf("  ");
1346
1347                 switch (vs->vs_aux) {
1348                 case VDEV_AUX_OPEN_FAILED:
1349                         (void) printf(gettext("cannot open"));
1350                         break;
1351
1352                 case VDEV_AUX_BAD_GUID_SUM:
1353                         (void) printf(gettext("missing device"));
1354                         break;
1355
1356                 case VDEV_AUX_NO_REPLICAS:
1357                         (void) printf(gettext("insufficient replicas"));
1358                         break;
1359
1360                 case VDEV_AUX_VERSION_NEWER:
1361                         (void) printf(gettext("newer version"));
1362                         break;
1363
1364                 case VDEV_AUX_UNSUP_FEAT:
1365                         (void) printf(gettext("unsupported feature(s)"));
1366                         break;
1367
1368                 case VDEV_AUX_ASHIFT_TOO_BIG:
1369                         (void) printf(gettext("unsupported minimum blocksize"));
1370                         break;
1371
1372                 case VDEV_AUX_SPARED:
1373                         verify(nvlist_lookup_uint64(nv, ZPOOL_CONFIG_GUID,
1374                             &cb.cb_guid) == 0);
1375                         if (zpool_iter(g_zfs, find_spare, &cb) == 1) {
1376                                 if (strcmp(zpool_get_name(cb.cb_zhp),
1377                                     zpool_get_name(zhp)) == 0)
1378                                         (void) printf(gettext("currently in "
1379                                             "use"));
1380                                 else
1381                                         (void) printf(gettext("in use by "
1382                                             "pool '%s'"),
1383                                             zpool_get_name(cb.cb_zhp));
1384                                 zpool_close(cb.cb_zhp);
1385                         } else {
1386                                 (void) printf(gettext("currently in use"));
1387                         }
1388                         break;
1389
1390                 case VDEV_AUX_ERR_EXCEEDED:
1391                         (void) printf(gettext("too many errors"));
1392                         break;
1393
1394                 case VDEV_AUX_IO_FAILURE:
1395                         (void) printf(gettext("experienced I/O failures"));
1396                         break;
1397
1398                 case VDEV_AUX_BAD_LOG:
1399                         (void) printf(gettext("bad intent log"));
1400                         break;
1401
1402                 case VDEV_AUX_EXTERNAL:
1403                         (void) printf(gettext("external device fault"));
1404                         break;
1405
1406                 case VDEV_AUX_SPLIT_POOL:
1407                         (void) printf(gettext("split into new pool"));
1408                         break;
1409
1410                 default:
1411                         (void) printf(gettext("corrupted data"));
1412                         break;
1413                 }
1414         } else if (children == 0 && !isspare &&
1415             VDEV_STAT_VALID(vs_physical_ashift, vsc) &&
1416             vs->vs_configured_ashift < vs->vs_physical_ashift) {
1417                 (void) printf(
1418                     gettext("  block size: %dB configured, %dB native"),
1419                     1 << vs->vs_configured_ashift, 1 << vs->vs_physical_ashift);
1420         }
1421
1422         (void) nvlist_lookup_uint64_array(nv, ZPOOL_CONFIG_SCAN_STATS,
1423             (uint64_t **)&ps, &c);
1424
1425         if (ps && ps->pss_state == DSS_SCANNING &&
1426             vs->vs_scan_processed != 0 && children == 0) {
1427                 (void) printf(gettext("  (%s)"),
1428                     (ps->pss_func == POOL_SCAN_RESILVER) ?
1429                     "resilvering" : "repairing");
1430         }
1431
1432         (void) printf("\n");
1433
1434         for (c = 0; c < children; c++) {
1435                 uint64_t islog = B_FALSE, ishole = B_FALSE;
1436
1437                 /* Don't print logs or holes here */
1438                 (void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_LOG,
1439                     &islog);
1440                 (void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_HOLE,
1441                     &ishole);
1442                 if (islog || ishole)
1443                         continue;
1444                 vname = zpool_vdev_name(g_zfs, zhp, child[c], B_TRUE);
1445                 print_status_config(zhp, vname, child[c],
1446                     namewidth, depth + 2, isspare);
1447                 free(vname);
1448         }
1449 }
1450
1451
1452 /*
1453  * Print the configuration of an exported pool.  Iterate over all vdevs in the
1454  * pool, printing out the name and status for each one.
1455  */
1456 void
1457 print_import_config(const char *name, nvlist_t *nv, int namewidth, int depth)
1458 {
1459         nvlist_t **child;
1460         uint_t c, children;
1461         vdev_stat_t *vs;
1462         char *type, *vname;
1463
1464         verify(nvlist_lookup_string(nv, ZPOOL_CONFIG_TYPE, &type) == 0);
1465         if (strcmp(type, VDEV_TYPE_MISSING) == 0 ||
1466             strcmp(type, VDEV_TYPE_HOLE) == 0)
1467                 return;
1468
1469         verify(nvlist_lookup_uint64_array(nv, ZPOOL_CONFIG_VDEV_STATS,
1470             (uint64_t **)&vs, &c) == 0);
1471
1472         (void) printf("\t%*s%-*s", depth, "", namewidth - depth, name);
1473         (void) printf("  %s", zpool_state_to_name(vs->vs_state, vs->vs_aux));
1474
1475         if (vs->vs_aux != 0) {
1476                 (void) printf("  ");
1477
1478                 switch (vs->vs_aux) {
1479                 case VDEV_AUX_OPEN_FAILED:
1480                         (void) printf(gettext("cannot open"));
1481                         break;
1482
1483                 case VDEV_AUX_BAD_GUID_SUM:
1484                         (void) printf(gettext("missing device"));
1485                         break;
1486
1487                 case VDEV_AUX_NO_REPLICAS:
1488                         (void) printf(gettext("insufficient replicas"));
1489                         break;
1490
1491                 case VDEV_AUX_VERSION_NEWER:
1492                         (void) printf(gettext("newer version"));
1493                         break;
1494
1495                 case VDEV_AUX_UNSUP_FEAT:
1496                         (void) printf(gettext("unsupported feature(s)"));
1497                         break;
1498
1499                 case VDEV_AUX_ERR_EXCEEDED:
1500                         (void) printf(gettext("too many errors"));
1501                         break;
1502
1503                 default:
1504                         (void) printf(gettext("corrupted data"));
1505                         break;
1506                 }
1507         }
1508         (void) printf("\n");
1509
1510         if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
1511             &child, &children) != 0)
1512                 return;
1513
1514         for (c = 0; c < children; c++) {
1515                 uint64_t is_log = B_FALSE;
1516
1517                 (void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_LOG,
1518                     &is_log);
1519                 if (is_log)
1520                         continue;
1521
1522                 vname = zpool_vdev_name(g_zfs, NULL, child[c], B_TRUE);
1523                 print_import_config(vname, child[c], namewidth, depth + 2);
1524                 free(vname);
1525         }
1526
1527         if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_L2CACHE,
1528             &child, &children) == 0) {
1529                 (void) printf(gettext("\tcache\n"));
1530                 for (c = 0; c < children; c++) {
1531                         vname = zpool_vdev_name(g_zfs, NULL, child[c], B_FALSE);
1532                         (void) printf("\t  %s\n", vname);
1533                         free(vname);
1534                 }
1535         }
1536
1537         if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_SPARES,
1538             &child, &children) == 0) {
1539                 (void) printf(gettext("\tspares\n"));
1540                 for (c = 0; c < children; c++) {
1541                         vname = zpool_vdev_name(g_zfs, NULL, child[c], B_FALSE);
1542                         (void) printf("\t  %s\n", vname);
1543                         free(vname);
1544                 }
1545         }
1546 }
1547
1548 /*
1549  * Print log vdevs.
1550  * Logs are recorded as top level vdevs in the main pool child array
1551  * but with "is_log" set to 1. We use either print_status_config() or
1552  * print_import_config() to print the top level logs then any log
1553  * children (eg mirrored slogs) are printed recursively - which
1554  * works because only the top level vdev is marked "is_log"
1555  */
1556 static void
1557 print_logs(zpool_handle_t *zhp, nvlist_t *nv, int namewidth, boolean_t verbose)
1558 {
1559         uint_t c, children;
1560         nvlist_t **child;
1561
1562         if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN, &child,
1563             &children) != 0)
1564                 return;
1565
1566         (void) printf(gettext("\tlogs\n"));
1567
1568         for (c = 0; c < children; c++) {
1569                 uint64_t is_log = B_FALSE;
1570                 char *name;
1571
1572                 (void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_LOG,
1573                     &is_log);
1574                 if (!is_log)
1575                         continue;
1576                 name = zpool_vdev_name(g_zfs, zhp, child[c], B_TRUE);
1577                 if (verbose)
1578                         print_status_config(zhp, name, child[c], namewidth,
1579                             2, B_FALSE);
1580                 else
1581                         print_import_config(name, child[c], namewidth, 2);
1582                 free(name);
1583         }
1584 }
1585
1586 /*
1587  * Display the status for the given pool.
1588  */
1589 static void
1590 show_import(nvlist_t *config)
1591 {
1592         uint64_t pool_state;
1593         vdev_stat_t *vs;
1594         char *name;
1595         uint64_t guid;
1596         char *msgid;
1597         nvlist_t *nvroot;
1598         int reason;
1599         const char *health;
1600         uint_t vsc;
1601         int namewidth;
1602         char *comment;
1603
1604         verify(nvlist_lookup_string(config, ZPOOL_CONFIG_POOL_NAME,
1605             &name) == 0);
1606         verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID,
1607             &guid) == 0);
1608         verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_STATE,
1609             &pool_state) == 0);
1610         verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
1611             &nvroot) == 0);
1612
1613         verify(nvlist_lookup_uint64_array(nvroot, ZPOOL_CONFIG_VDEV_STATS,
1614             (uint64_t **)&vs, &vsc) == 0);
1615         health = zpool_state_to_name(vs->vs_state, vs->vs_aux);
1616
1617         reason = zpool_import_status(config, &msgid);
1618
1619         (void) printf(gettext("   pool: %s\n"), name);
1620         (void) printf(gettext("     id: %llu\n"), (u_longlong_t)guid);
1621         (void) printf(gettext("  state: %s"), health);
1622         if (pool_state == POOL_STATE_DESTROYED)
1623                 (void) printf(gettext(" (DESTROYED)"));
1624         (void) printf("\n");
1625
1626         switch (reason) {
1627         case ZPOOL_STATUS_MISSING_DEV_R:
1628         case ZPOOL_STATUS_MISSING_DEV_NR:
1629         case ZPOOL_STATUS_BAD_GUID_SUM:
1630                 (void) printf(gettext(" status: One or more devices are "
1631                     "missing from the system.\n"));
1632                 break;
1633
1634         case ZPOOL_STATUS_CORRUPT_LABEL_R:
1635         case ZPOOL_STATUS_CORRUPT_LABEL_NR:
1636                 (void) printf(gettext(" status: One or more devices contains "
1637                     "corrupted data.\n"));
1638                 break;
1639
1640         case ZPOOL_STATUS_CORRUPT_DATA:
1641                 (void) printf(
1642                     gettext(" status: The pool data is corrupted.\n"));
1643                 break;
1644
1645         case ZPOOL_STATUS_OFFLINE_DEV:
1646                 (void) printf(gettext(" status: One or more devices "
1647                     "are offlined.\n"));
1648                 break;
1649
1650         case ZPOOL_STATUS_CORRUPT_POOL:
1651                 (void) printf(gettext(" status: The pool metadata is "
1652                     "corrupted.\n"));
1653                 break;
1654
1655         case ZPOOL_STATUS_VERSION_OLDER:
1656                 (void) printf(gettext(" status: The pool is formatted using a "
1657                     "legacy on-disk version.\n"));
1658                 break;
1659
1660         case ZPOOL_STATUS_VERSION_NEWER:
1661                 (void) printf(gettext(" status: The pool is formatted using an "
1662                     "incompatible version.\n"));
1663                 break;
1664
1665         case ZPOOL_STATUS_FEAT_DISABLED:
1666                 (void) printf(gettext(" status: Some supported features are "
1667                     "not enabled on the pool.\n"));
1668                 break;
1669
1670         case ZPOOL_STATUS_UNSUP_FEAT_READ:
1671                 (void) printf(gettext("status: The pool uses the following "
1672                     "feature(s) not supported on this sytem:\n"));
1673                 zpool_print_unsup_feat(config);
1674                 break;
1675
1676         case ZPOOL_STATUS_UNSUP_FEAT_WRITE:
1677                 (void) printf(gettext("status: The pool can only be accessed "
1678                     "in read-only mode on this system. It\n\tcannot be "
1679                     "accessed in read-write mode because it uses the "
1680                     "following\n\tfeature(s) not supported on this system:\n"));
1681                 zpool_print_unsup_feat(config);
1682                 break;
1683
1684         case ZPOOL_STATUS_HOSTID_MISMATCH:
1685                 (void) printf(gettext(" status: The pool was last accessed by "
1686                     "another system.\n"));
1687                 break;
1688
1689         case ZPOOL_STATUS_FAULTED_DEV_R:
1690         case ZPOOL_STATUS_FAULTED_DEV_NR:
1691                 (void) printf(gettext(" status: One or more devices are "
1692                     "faulted.\n"));
1693                 break;
1694
1695         case ZPOOL_STATUS_BAD_LOG:
1696                 (void) printf(gettext(" status: An intent log record cannot be "
1697                     "read.\n"));
1698                 break;
1699
1700         case ZPOOL_STATUS_RESILVERING:
1701                 (void) printf(gettext(" status: One or more devices were being "
1702                     "resilvered.\n"));
1703                 break;
1704
1705         case ZPOOL_STATUS_NON_NATIVE_ASHIFT:
1706                 (void) printf(gettext("status: One or more devices were "
1707                     "configured to use a non-native block size.\n"
1708                     "\tExpect reduced performance.\n"));
1709                 break;
1710
1711         default:
1712                 /*
1713                  * No other status can be seen when importing pools.
1714                  */
1715                 assert(reason == ZPOOL_STATUS_OK);
1716         }
1717
1718         /*
1719          * Print out an action according to the overall state of the pool.
1720          */
1721         if (vs->vs_state == VDEV_STATE_HEALTHY) {
1722                 if (reason == ZPOOL_STATUS_VERSION_OLDER ||
1723                     reason == ZPOOL_STATUS_FEAT_DISABLED) {
1724                         (void) printf(gettext(" action: The pool can be "
1725                             "imported using its name or numeric identifier, "
1726                             "though\n\tsome features will not be available "
1727                             "without an explicit 'zpool upgrade'.\n"));
1728                 } else if (reason == ZPOOL_STATUS_HOSTID_MISMATCH) {
1729                         (void) printf(gettext(" action: The pool can be "
1730                             "imported using its name or numeric "
1731                             "identifier and\n\tthe '-f' flag.\n"));
1732                 } else {
1733                         (void) printf(gettext(" action: The pool can be "
1734                             "imported using its name or numeric "
1735                             "identifier.\n"));
1736                 }
1737         } else if (vs->vs_state == VDEV_STATE_DEGRADED) {
1738                 (void) printf(gettext(" action: The pool can be imported "
1739                     "despite missing or damaged devices.  The\n\tfault "
1740                     "tolerance of the pool may be compromised if imported.\n"));
1741         } else {
1742                 switch (reason) {
1743                 case ZPOOL_STATUS_VERSION_NEWER:
1744                         (void) printf(gettext(" action: The pool cannot be "
1745                             "imported.  Access the pool on a system running "
1746                             "newer\n\tsoftware, or recreate the pool from "
1747                             "backup.\n"));
1748                         break;
1749                 case ZPOOL_STATUS_UNSUP_FEAT_READ:
1750                         (void) printf(gettext("action: The pool cannot be "
1751                             "imported. Access the pool on a system that "
1752                             "supports\n\tthe required feature(s), or recreate "
1753                             "the pool from backup.\n"));
1754                         break;
1755                 case ZPOOL_STATUS_UNSUP_FEAT_WRITE:
1756                         (void) printf(gettext("action: The pool cannot be "
1757                             "imported in read-write mode. Import the pool "
1758                             "with\n"
1759                             "\t\"-o readonly=on\", access the pool on a system "
1760                             "that supports the\n\trequired feature(s), or "
1761                             "recreate the pool from backup.\n"));
1762                         break;
1763                 case ZPOOL_STATUS_MISSING_DEV_R:
1764                 case ZPOOL_STATUS_MISSING_DEV_NR:
1765                 case ZPOOL_STATUS_BAD_GUID_SUM:
1766                         (void) printf(gettext(" action: The pool cannot be "
1767                             "imported. Attach the missing\n\tdevices and try "
1768                             "again.\n"));
1769                         break;
1770                 default:
1771                         (void) printf(gettext(" action: The pool cannot be "
1772                             "imported due to damaged devices or data.\n"));
1773                 }
1774         }
1775
1776         /* Print the comment attached to the pool. */
1777         if (nvlist_lookup_string(config, ZPOOL_CONFIG_COMMENT, &comment) == 0)
1778                 (void) printf(gettext("comment: %s\n"), comment);
1779
1780         /*
1781          * If the state is "closed" or "can't open", and the aux state
1782          * is "corrupt data":
1783          */
1784         if (((vs->vs_state == VDEV_STATE_CLOSED) ||
1785             (vs->vs_state == VDEV_STATE_CANT_OPEN)) &&
1786             (vs->vs_aux == VDEV_AUX_CORRUPT_DATA)) {
1787                 if (pool_state == POOL_STATE_DESTROYED)
1788                         (void) printf(gettext("\tThe pool was destroyed, "
1789                             "but can be imported using the '-Df' flags.\n"));
1790                 else if (pool_state != POOL_STATE_EXPORTED)
1791                         (void) printf(gettext("\tThe pool may be active on "
1792                             "another system, but can be imported using\n\t"
1793                             "the '-f' flag.\n"));
1794         }
1795
1796         if (msgid != NULL)
1797                 (void) printf(gettext("   see: http://illumos.org/msg/%s\n"),
1798                     msgid);
1799
1800         (void) printf(gettext(" config:\n\n"));
1801
1802         namewidth = max_width(NULL, nvroot, 0, 0);
1803         if (namewidth < 10)
1804                 namewidth = 10;
1805
1806         print_import_config(name, nvroot, namewidth, 0);
1807         if (num_logs(nvroot) > 0)
1808                 print_logs(NULL, nvroot, namewidth, B_FALSE);
1809
1810         if (reason == ZPOOL_STATUS_BAD_GUID_SUM) {
1811                 (void) printf(gettext("\n\tAdditional devices are known to "
1812                     "be part of this pool, though their\n\texact "
1813                     "configuration cannot be determined.\n"));
1814         }
1815 }
1816
1817 /*
1818  * Perform the import for the given configuration.  This passes the heavy
1819  * lifting off to zpool_import_props(), and then mounts the datasets contained
1820  * within the pool.
1821  */
1822 static int
1823 do_import(nvlist_t *config, const char *newname, const char *mntopts,
1824     nvlist_t *props, int flags)
1825 {
1826         zpool_handle_t *zhp;
1827         char *name;
1828         uint64_t state;
1829         uint64_t version;
1830
1831         verify(nvlist_lookup_string(config, ZPOOL_CONFIG_POOL_NAME,
1832             &name) == 0);
1833
1834         verify(nvlist_lookup_uint64(config,
1835             ZPOOL_CONFIG_POOL_STATE, &state) == 0);
1836         verify(nvlist_lookup_uint64(config,
1837             ZPOOL_CONFIG_VERSION, &version) == 0);
1838         if (!SPA_VERSION_IS_SUPPORTED(version)) {
1839                 (void) fprintf(stderr, gettext("cannot import '%s': pool "
1840                     "is formatted using an unsupported ZFS version\n"), name);
1841                 return (1);
1842         } else if (state != POOL_STATE_EXPORTED &&
1843             !(flags & ZFS_IMPORT_ANY_HOST)) {
1844                 uint64_t hostid;
1845
1846                 if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_HOSTID,
1847                     &hostid) == 0) {
1848                         if ((unsigned long)hostid != gethostid()) {
1849                                 char *hostname;
1850                                 uint64_t timestamp;
1851                                 time_t t;
1852
1853                                 verify(nvlist_lookup_string(config,
1854                                     ZPOOL_CONFIG_HOSTNAME, &hostname) == 0);
1855                                 verify(nvlist_lookup_uint64(config,
1856                                     ZPOOL_CONFIG_TIMESTAMP, &timestamp) == 0);
1857                                 t = timestamp;
1858                                 (void) fprintf(stderr, gettext("cannot import "
1859                                     "'%s': pool may be in use from other "
1860                                     "system, it was last accessed by %s "
1861                                     "(hostid: 0x%lx) on %s"), name, hostname,
1862                                     (unsigned long)hostid,
1863                                     asctime(localtime(&t)));
1864                                 (void) fprintf(stderr, gettext("use '-f' to "
1865                                     "import anyway\n"));
1866                                 return (1);
1867                         }
1868                 } else {
1869                         (void) fprintf(stderr, gettext("cannot import '%s': "
1870                             "pool may be in use from other system\n"), name);
1871                         (void) fprintf(stderr, gettext("use '-f' to import "
1872                             "anyway\n"));
1873                         return (1);
1874                 }
1875         }
1876
1877         if (zpool_import_props(g_zfs, config, newname, props, flags) != 0)
1878                 return (1);
1879
1880         if (newname != NULL)
1881                 name = (char *)newname;
1882
1883         if ((zhp = zpool_open_canfail(g_zfs, name)) == NULL)
1884                 return (1);
1885
1886         if (zpool_get_state(zhp) != POOL_STATE_UNAVAIL &&
1887             !(flags & ZFS_IMPORT_ONLY) &&
1888             zpool_enable_datasets(zhp, mntopts, 0) != 0) {
1889                 zpool_close(zhp);
1890                 return (1);
1891         }
1892
1893         zpool_close(zhp);
1894         return (0);
1895 }
1896
1897 /*
1898  * zpool import [-d dir] [-D]
1899  *       import [-o mntopts] [-o prop=value] ... [-R root] [-D]
1900  *              [-d dir | -c cachefile] [-f] -a
1901  *       import [-o mntopts] [-o prop=value] ... [-R root] [-D]
1902  *              [-d dir | -c cachefile] [-f] [-n] [-F] <pool | id> [newpool]
1903  *
1904  *       -c     Read pool information from a cachefile instead of searching
1905  *              devices.
1906  *
1907  *       -d     Scan in a specific directory, other than /dev/dsk.  More than
1908  *              one directory can be specified using multiple '-d' options.
1909  *
1910  *       -D     Scan for previously destroyed pools or import all or only
1911  *              specified destroyed pools.
1912  *
1913  *       -R     Temporarily import the pool, with all mountpoints relative to
1914  *              the given root.  The pool will remain exported when the machine
1915  *              is rebooted.
1916  *
1917  *       -V     Import even in the presence of faulted vdevs.  This is an
1918  *              intentionally undocumented option for testing purposes, and
1919  *              treats the pool configuration as complete, leaving any bad
1920  *              vdevs in the FAULTED state. In other words, it does verbatim
1921  *              import.
1922  *
1923  *       -f     Force import, even if it appears that the pool is active.
1924  *
1925  *       -F     Attempt rewind if necessary.
1926  *
1927  *       -n     See if rewind would work, but don't actually rewind.
1928  *
1929  *       -N     Import the pool but don't mount datasets.
1930  *
1931  *       -T     Specify a starting txg to use for import. This option is
1932  *              intentionally undocumented option for testing purposes.
1933  *
1934  *       -a     Import all pools found.
1935  *
1936  *       -o     Set property=value and/or temporary mount options (without '=').
1937  *
1938  * The import command scans for pools to import, and import pools based on pool
1939  * name and GUID.  The pool can also be renamed as part of the import process.
1940  */
1941 int
1942 zpool_do_import(int argc, char **argv)
1943 {
1944         char **searchdirs = NULL;
1945         int nsearch = 0;
1946         int c;
1947         int err = 0;
1948         nvlist_t *pools = NULL;
1949         boolean_t do_all = B_FALSE;
1950         boolean_t do_destroyed = B_FALSE;
1951         char *mntopts = NULL;
1952         nvpair_t *elem;
1953         nvlist_t *config;
1954         uint64_t searchguid = 0;
1955         char *searchname = NULL;
1956         char *propval;
1957         nvlist_t *found_config;
1958         nvlist_t *policy = NULL;
1959         nvlist_t *props = NULL;
1960         boolean_t first;
1961         int flags = ZFS_IMPORT_NORMAL;
1962         uint32_t rewind_policy = ZPOOL_NO_REWIND;
1963         boolean_t dryrun = B_FALSE;
1964         boolean_t do_rewind = B_FALSE;
1965         boolean_t xtreme_rewind = B_FALSE;
1966         uint64_t pool_state, txg = -1ULL;
1967         char *cachefile = NULL;
1968         importargs_t idata = { 0 };
1969         char *endptr;
1970
1971         /* check options */
1972         while ((c = getopt(argc, argv, ":aCc:d:DEfFmnNo:rR:T:VX")) != -1) {
1973                 switch (c) {
1974                 case 'a':
1975                         do_all = B_TRUE;
1976                         break;
1977                 case 'c':
1978                         cachefile = optarg;
1979                         break;
1980                 case 'd':
1981                         if (searchdirs == NULL) {
1982                                 searchdirs = safe_malloc(sizeof (char *));
1983                         } else {
1984                                 char **tmp = safe_malloc((nsearch + 1) *
1985                                     sizeof (char *));
1986                                 bcopy(searchdirs, tmp, nsearch *
1987                                     sizeof (char *));
1988                                 free(searchdirs);
1989                                 searchdirs = tmp;
1990                         }
1991                         searchdirs[nsearch++] = optarg;
1992                         break;
1993                 case 'D':
1994                         do_destroyed = B_TRUE;
1995                         break;
1996                 case 'f':
1997                         flags |= ZFS_IMPORT_ANY_HOST;
1998                         break;
1999                 case 'F':
2000                         do_rewind = B_TRUE;
2001                         break;
2002                 case 'm':
2003                         flags |= ZFS_IMPORT_MISSING_LOG;
2004                         break;
2005                 case 'n':
2006                         dryrun = B_TRUE;
2007                         break;
2008                 case 'N':
2009                         flags |= ZFS_IMPORT_ONLY;
2010                         break;
2011                 case 'o':
2012                         if ((propval = strchr(optarg, '=')) != NULL) {
2013                                 *propval = '\0';
2014                                 propval++;
2015                                 if (add_prop_list(optarg, propval,
2016                                     &props, B_TRUE))
2017                                         goto error;
2018                         } else {
2019                                 mntopts = optarg;
2020                         }
2021                         break;
2022                 case 'R':
2023                         if (add_prop_list(zpool_prop_to_name(
2024                             ZPOOL_PROP_ALTROOT), optarg, &props, B_TRUE))
2025                                 goto error;
2026                         if (nvlist_lookup_string(props,
2027                             zpool_prop_to_name(ZPOOL_PROP_CACHEFILE),
2028                             &propval) == 0)
2029                                 break;
2030                         if (add_prop_list(zpool_prop_to_name(
2031                             ZPOOL_PROP_CACHEFILE), "none", &props, B_TRUE))
2032                                 goto error;
2033                         break;
2034                 case 'T':
2035                         errno = 0;
2036                         txg = strtoull(optarg, &endptr, 10);
2037                         if (errno != 0 || *endptr != '\0') {
2038                                 (void) fprintf(stderr,
2039                                     gettext("invalid txg value\n"));
2040                                 usage(B_FALSE);
2041                         }
2042                         rewind_policy = ZPOOL_DO_REWIND | ZPOOL_EXTREME_REWIND;
2043                         break;
2044                 case 'V':
2045                         flags |= ZFS_IMPORT_VERBATIM;
2046                         break;
2047                 case 'X':
2048                         xtreme_rewind = B_TRUE;
2049                         break;
2050                 case ':':
2051                         (void) fprintf(stderr, gettext("missing argument for "
2052                             "'%c' option\n"), optopt);
2053                         usage(B_FALSE);
2054                         break;
2055                 case '?':
2056                         (void) fprintf(stderr, gettext("invalid option '%c'\n"),
2057                             optopt);
2058                         usage(B_FALSE);
2059                 }
2060         }
2061
2062         argc -= optind;
2063         argv += optind;
2064
2065         if (cachefile && nsearch != 0) {
2066                 (void) fprintf(stderr, gettext("-c is incompatible with -d\n"));
2067                 usage(B_FALSE);
2068         }
2069
2070         if ((dryrun || xtreme_rewind) && !do_rewind) {
2071                 (void) fprintf(stderr,
2072                     gettext("-n or -X only meaningful with -F\n"));
2073                 usage(B_FALSE);
2074         }
2075         if (dryrun)
2076                 rewind_policy = ZPOOL_TRY_REWIND;
2077         else if (do_rewind)
2078                 rewind_policy = ZPOOL_DO_REWIND;
2079         if (xtreme_rewind)
2080                 rewind_policy |= ZPOOL_EXTREME_REWIND;
2081
2082         /* In the future, we can capture further policy and include it here */
2083         if (nvlist_alloc(&policy, NV_UNIQUE_NAME, 0) != 0 ||
2084             nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, txg) != 0 ||
2085             nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind_policy) != 0)
2086                 goto error;
2087
2088         if (searchdirs == NULL) {
2089                 searchdirs = safe_malloc(sizeof (char *));
2090                 searchdirs[0] = "/dev";
2091                 nsearch = 1;
2092         }
2093
2094         /* check argument count */
2095         if (do_all) {
2096                 if (argc != 0) {
2097                         (void) fprintf(stderr, gettext("too many arguments\n"));
2098                         usage(B_FALSE);
2099                 }
2100         } else {
2101                 if (argc > 2) {
2102                         (void) fprintf(stderr, gettext("too many arguments\n"));
2103                         usage(B_FALSE);
2104                 }
2105
2106                 /*
2107                  * Check for the SYS_CONFIG privilege.  We do this explicitly
2108                  * here because otherwise any attempt to discover pools will
2109                  * silently fail.
2110                  */
2111                 if (argc == 0 && !priv_ineffect(PRIV_SYS_CONFIG)) {
2112                         (void) fprintf(stderr, gettext("cannot "
2113                             "discover pools: permission denied\n"));
2114                         free(searchdirs);
2115                         nvlist_free(policy);
2116                         return (1);
2117                 }
2118         }
2119
2120         /*
2121          * Depending on the arguments given, we do one of the following:
2122          *
2123          *      <none>  Iterate through all pools and display information about
2124          *              each one.
2125          *
2126          *      -a      Iterate through all pools and try to import each one.
2127          *
2128          *      <id>    Find the pool that corresponds to the given GUID/pool
2129          *              name and import that one.
2130          *
2131          *      -D      Above options applies only to destroyed pools.
2132          */
2133         if (argc != 0) {
2134                 char *endptr;
2135
2136                 errno = 0;
2137                 searchguid = strtoull(argv[0], &endptr, 10);
2138                 if (errno != 0 || *endptr != '\0') {
2139                         searchname = argv[0];
2140                         searchguid = 0;
2141                 }
2142                 found_config = NULL;
2143
2144                 /*
2145                  * User specified a name or guid.  Ensure it's unique.
2146                  */
2147                 idata.unique = B_TRUE;
2148         }
2149
2150
2151         idata.path = searchdirs;
2152         idata.paths = nsearch;
2153         idata.poolname = searchname;
2154         idata.guid = searchguid;
2155         idata.cachefile = cachefile;
2156
2157         pools = zpool_search_import(g_zfs, &idata);
2158
2159         if (pools != NULL && idata.exists &&
2160             (argc == 1 || strcmp(argv[0], argv[1]) == 0)) {
2161                 (void) fprintf(stderr, gettext("cannot import '%s': "
2162                     "a pool with that name already exists\n"),
2163                     argv[0]);
2164                 (void) fprintf(stderr, gettext("use the form '%s "
2165                     "<pool | id> <newpool>' to give it a new name\n"),
2166                     "zpool import");
2167                 err = 1;
2168         } else if (pools == NULL && idata.exists) {
2169                 (void) fprintf(stderr, gettext("cannot import '%s': "
2170                     "a pool with that name is already created/imported,\n"),
2171                     argv[0]);
2172                 (void) fprintf(stderr, gettext("and no additional pools "
2173                     "with that name were found\n"));
2174                 err = 1;
2175         } else if (pools == NULL) {
2176                 if (argc != 0) {
2177                         (void) fprintf(stderr, gettext("cannot import '%s': "
2178                             "no such pool available\n"), argv[0]);
2179                 }
2180                 err = 1;
2181         }
2182
2183         if (err == 1) {
2184                 free(searchdirs);
2185                 nvlist_free(policy);
2186                 return (1);
2187         }
2188
2189         /*
2190          * At this point we have a list of import candidate configs. Even if
2191          * we were searching by pool name or guid, we still need to
2192          * post-process the list to deal with pool state and possible
2193          * duplicate names.
2194          */
2195         err = 0;
2196         elem = NULL;
2197         first = B_TRUE;
2198         while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) {
2199
2200                 verify(nvpair_value_nvlist(elem, &config) == 0);
2201
2202                 verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_STATE,
2203                     &pool_state) == 0);
2204                 if (!do_destroyed && pool_state == POOL_STATE_DESTROYED)
2205                         continue;
2206                 if (do_destroyed && pool_state != POOL_STATE_DESTROYED)
2207                         continue;
2208
2209                 verify(nvlist_add_nvlist(config, ZPOOL_REWIND_POLICY,
2210                     policy) == 0);
2211
2212                 if (argc == 0) {
2213                         if (first)
2214                                 first = B_FALSE;
2215                         else if (!do_all)
2216                                 (void) printf("\n");
2217
2218                         if (do_all) {
2219                                 err |= do_import(config, NULL, mntopts,
2220                                     props, flags);
2221                         } else {
2222                                 show_import(config);
2223                         }
2224                 } else if (searchname != NULL) {
2225                         char *name;
2226
2227                         /*
2228                          * We are searching for a pool based on name.
2229                          */
2230                         verify(nvlist_lookup_string(config,
2231                             ZPOOL_CONFIG_POOL_NAME, &name) == 0);
2232
2233                         if (strcmp(name, searchname) == 0) {
2234                                 if (found_config != NULL) {
2235                                         (void) fprintf(stderr, gettext(
2236                                             "cannot import '%s': more than "
2237                                             "one matching pool\n"), searchname);
2238                                         (void) fprintf(stderr, gettext(
2239                                             "import by numeric ID instead\n"));
2240                                         err = B_TRUE;
2241                                 }
2242                                 found_config = config;
2243                         }
2244                 } else {
2245                         uint64_t guid;
2246
2247                         /*
2248                          * Search for a pool by guid.
2249                          */
2250                         verify(nvlist_lookup_uint64(config,
2251                             ZPOOL_CONFIG_POOL_GUID, &guid) == 0);
2252
2253                         if (guid == searchguid)
2254                                 found_config = config;
2255                 }
2256         }
2257
2258         /*
2259          * If we were searching for a specific pool, verify that we found a
2260          * pool, and then do the import.
2261          */
2262         if (argc != 0 && err == 0) {
2263                 if (found_config == NULL) {
2264                         (void) fprintf(stderr, gettext("cannot import '%s': "
2265                             "no such pool available\n"), argv[0]);
2266                         err = B_TRUE;
2267                 } else {
2268                         err |= do_import(found_config, argc == 1 ? NULL :
2269                             argv[1], mntopts, props, flags);
2270                 }
2271         }
2272
2273         /*
2274          * If we were just looking for pools, report an error if none were
2275          * found.
2276          */
2277         if (argc == 0 && first)
2278                 (void) fprintf(stderr,
2279                     gettext("no pools available to import\n"));
2280
2281 error:
2282         nvlist_free(props);
2283         nvlist_free(pools);
2284         nvlist_free(policy);
2285         free(searchdirs);
2286
2287         return (err ? 1 : 0);
2288 }
2289
2290 typedef struct iostat_cbdata {
2291         boolean_t cb_verbose;
2292         int cb_namewidth;
2293         int cb_iteration;
2294         zpool_list_t *cb_list;
2295 } iostat_cbdata_t;
2296
2297 static void
2298 print_iostat_separator(iostat_cbdata_t *cb)
2299 {
2300         int i = 0;
2301
2302         for (i = 0; i < cb->cb_namewidth; i++)
2303                 (void) printf("-");
2304         (void) printf("  -----  -----  -----  -----  -----  -----\n");
2305 }
2306
2307 static void
2308 print_iostat_header(iostat_cbdata_t *cb)
2309 {
2310         (void) printf("%*s     capacity     operations    bandwidth\n",
2311             cb->cb_namewidth, "");
2312         (void) printf("%-*s  alloc   free   read  write   read  write\n",
2313             cb->cb_namewidth, "pool");
2314         print_iostat_separator(cb);
2315 }
2316
2317 /*
2318  * Display a single statistic.
2319  */
2320 static void
2321 print_one_stat(uint64_t value)
2322 {
2323         char buf[64];
2324
2325         zfs_nicenum(value, buf, sizeof (buf));
2326         (void) printf("  %5s", buf);
2327 }
2328
2329 /*
2330  * Print out all the statistics for the given vdev.  This can either be the
2331  * toplevel configuration, or called recursively.  If 'name' is NULL, then this
2332  * is a verbose output, and we don't want to display the toplevel pool stats.
2333  */
2334 void
2335 print_vdev_stats(zpool_handle_t *zhp, const char *name, nvlist_t *oldnv,
2336     nvlist_t *newnv, iostat_cbdata_t *cb, int depth)
2337 {
2338         nvlist_t **oldchild, **newchild;
2339         uint_t c, children;
2340         vdev_stat_t *oldvs, *newvs;
2341         vdev_stat_t zerovs = { 0 };
2342         uint64_t tdelta;
2343         double scale;
2344         char *vname;
2345
2346         if (oldnv != NULL) {
2347                 verify(nvlist_lookup_uint64_array(oldnv,
2348                     ZPOOL_CONFIG_VDEV_STATS, (uint64_t **)&oldvs, &c) == 0);
2349         } else {
2350                 oldvs = &zerovs;
2351         }
2352
2353         verify(nvlist_lookup_uint64_array(newnv, ZPOOL_CONFIG_VDEV_STATS,
2354             (uint64_t **)&newvs, &c) == 0);
2355
2356         if (strlen(name) + depth > cb->cb_namewidth)
2357                 (void) printf("%*s%s", depth, "", name);
2358         else
2359                 (void) printf("%*s%s%*s", depth, "", name,
2360                     (int)(cb->cb_namewidth - strlen(name) - depth), "");
2361
2362         tdelta = newvs->vs_timestamp - oldvs->vs_timestamp;
2363
2364         if (tdelta == 0)
2365                 scale = 1.0;
2366         else
2367                 scale = (double)NANOSEC / tdelta;
2368
2369         /* only toplevel vdevs have capacity stats */
2370         if (newvs->vs_space == 0) {
2371                 (void) printf("      -      -");
2372         } else {
2373                 print_one_stat(newvs->vs_alloc);
2374                 print_one_stat(newvs->vs_space - newvs->vs_alloc);
2375         }
2376
2377         print_one_stat((uint64_t)(scale * (newvs->vs_ops[ZIO_TYPE_READ] -
2378             oldvs->vs_ops[ZIO_TYPE_READ])));
2379
2380         print_one_stat((uint64_t)(scale * (newvs->vs_ops[ZIO_TYPE_WRITE] -
2381             oldvs->vs_ops[ZIO_TYPE_WRITE])));
2382
2383         print_one_stat((uint64_t)(scale * (newvs->vs_bytes[ZIO_TYPE_READ] -
2384             oldvs->vs_bytes[ZIO_TYPE_READ])));
2385
2386         print_one_stat((uint64_t)(scale * (newvs->vs_bytes[ZIO_TYPE_WRITE] -
2387             oldvs->vs_bytes[ZIO_TYPE_WRITE])));
2388
2389         (void) printf("\n");
2390
2391         if (!cb->cb_verbose)
2392                 return;
2393
2394         if (nvlist_lookup_nvlist_array(newnv, ZPOOL_CONFIG_CHILDREN,
2395             &newchild, &children) != 0)
2396                 return;
2397
2398         if (oldnv && nvlist_lookup_nvlist_array(oldnv, ZPOOL_CONFIG_CHILDREN,
2399             &oldchild, &c) != 0)
2400                 return;
2401
2402         for (c = 0; c < children; c++) {
2403                 uint64_t ishole = B_FALSE, islog = B_FALSE;
2404
2405                 (void) nvlist_lookup_uint64(newchild[c], ZPOOL_CONFIG_IS_HOLE,
2406                     &ishole);
2407
2408                 (void) nvlist_lookup_uint64(newchild[c], ZPOOL_CONFIG_IS_LOG,
2409                     &islog);
2410
2411                 if (ishole || islog)
2412                         continue;
2413
2414                 vname = zpool_vdev_name(g_zfs, zhp, newchild[c], B_FALSE);
2415                 print_vdev_stats(zhp, vname, oldnv ? oldchild[c] : NULL,
2416                     newchild[c], cb, depth + 2);
2417                 free(vname);
2418         }
2419
2420         /*
2421          * Log device section
2422          */
2423
2424         if (num_logs(newnv) > 0) {
2425                 (void) printf("%-*s      -      -      -      -      -      "
2426                     "-\n", cb->cb_namewidth, "logs");
2427
2428                 for (c = 0; c < children; c++) {
2429                         uint64_t islog = B_FALSE;
2430                         (void) nvlist_lookup_uint64(newchild[c],
2431                             ZPOOL_CONFIG_IS_LOG, &islog);
2432
2433                         if (islog) {
2434                                 vname = zpool_vdev_name(g_zfs, zhp, newchild[c],
2435                                     B_FALSE);
2436                                 print_vdev_stats(zhp, vname, oldnv ?
2437                                     oldchild[c] : NULL, newchild[c],
2438                                     cb, depth + 2);
2439                                 free(vname);
2440                         }
2441                 }
2442
2443         }
2444
2445         /*
2446          * Include level 2 ARC devices in iostat output
2447          */
2448         if (nvlist_lookup_nvlist_array(newnv, ZPOOL_CONFIG_L2CACHE,
2449             &newchild, &children) != 0)
2450                 return;
2451
2452         if (oldnv && nvlist_lookup_nvlist_array(oldnv, ZPOOL_CONFIG_L2CACHE,
2453             &oldchild, &c) != 0)
2454                 return;
2455
2456         if (children > 0) {
2457                 (void) printf("%-*s      -      -      -      -      -      "
2458                     "-\n", cb->cb_namewidth, "cache");
2459                 for (c = 0; c < children; c++) {
2460                         vname = zpool_vdev_name(g_zfs, zhp, newchild[c],
2461                             B_FALSE);
2462                         print_vdev_stats(zhp, vname, oldnv ? oldchild[c] : NULL,
2463                             newchild[c], cb, depth + 2);
2464                         free(vname);
2465                 }
2466         }
2467 }
2468
2469 static int
2470 refresh_iostat(zpool_handle_t *zhp, void *data)
2471 {
2472         iostat_cbdata_t *cb = data;
2473         boolean_t missing;
2474
2475         /*
2476          * If the pool has disappeared, remove it from the list and continue.
2477          */
2478         if (zpool_refresh_stats(zhp, &missing) != 0)
2479                 return (-1);
2480
2481         if (missing)
2482                 pool_list_remove(cb->cb_list, zhp);
2483
2484         return (0);
2485 }
2486
2487 /*
2488  * Callback to print out the iostats for the given pool.
2489  */
2490 int
2491 print_iostat(zpool_handle_t *zhp, void *data)
2492 {
2493         iostat_cbdata_t *cb = data;
2494         nvlist_t *oldconfig, *newconfig;
2495         nvlist_t *oldnvroot, *newnvroot;
2496
2497         newconfig = zpool_get_config(zhp, &oldconfig);
2498
2499         if (cb->cb_iteration == 1)
2500                 oldconfig = NULL;
2501
2502         verify(nvlist_lookup_nvlist(newconfig, ZPOOL_CONFIG_VDEV_TREE,
2503             &newnvroot) == 0);
2504
2505         if (oldconfig == NULL)
2506                 oldnvroot = NULL;
2507         else
2508                 verify(nvlist_lookup_nvlist(oldconfig, ZPOOL_CONFIG_VDEV_TREE,
2509                     &oldnvroot) == 0);
2510
2511         /*
2512          * Print out the statistics for the pool.
2513          */
2514         print_vdev_stats(zhp, zpool_get_name(zhp), oldnvroot, newnvroot, cb, 0);
2515
2516         if (cb->cb_verbose)
2517                 print_iostat_separator(cb);
2518
2519         return (0);
2520 }
2521
2522 int
2523 get_namewidth(zpool_handle_t *zhp, void *data)
2524 {
2525         iostat_cbdata_t *cb = data;
2526         nvlist_t *config, *nvroot;
2527
2528         if ((config = zpool_get_config(zhp, NULL)) != NULL) {
2529                 verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
2530                     &nvroot) == 0);
2531                 if (!cb->cb_verbose)
2532                         cb->cb_namewidth = strlen(zpool_get_name(zhp));
2533                 else
2534                         cb->cb_namewidth = max_width(zhp, nvroot, 0,
2535                             cb->cb_namewidth);
2536         }
2537
2538         /*
2539          * The width must fall into the range [10,38].  The upper limit is the
2540          * maximum we can have and still fit in 80 columns.
2541          */
2542         if (cb->cb_namewidth < 10)
2543                 cb->cb_namewidth = 10;
2544         if (cb->cb_namewidth > 38)
2545                 cb->cb_namewidth = 38;
2546
2547         return (0);
2548 }
2549
2550 /*
2551  * Parse the input string, get the 'interval' and 'count' value if there is one.
2552  */
2553 static void
2554 get_interval_count(int *argcp, char **argv, unsigned long *iv,
2555     unsigned long *cnt)
2556 {
2557         unsigned long interval = 0, count = 0;
2558         int argc = *argcp, errno;
2559
2560         /*
2561          * Determine if the last argument is an integer or a pool name
2562          */
2563         if (argc > 0 && isdigit(argv[argc - 1][0])) {
2564                 char *end;
2565
2566                 errno = 0;
2567                 interval = strtoul(argv[argc - 1], &end, 10);
2568
2569                 if (*end == '\0' && errno == 0) {
2570                         if (interval == 0) {
2571                                 (void) fprintf(stderr, gettext("interval "
2572                                     "cannot be zero\n"));
2573                                 usage(B_FALSE);
2574                         }
2575                         /*
2576                          * Ignore the last parameter
2577                          */
2578                         argc--;
2579                 } else {
2580                         /*
2581                          * If this is not a valid number, just plow on.  The
2582                          * user will get a more informative error message later
2583                          * on.
2584                          */
2585                         interval = 0;
2586                 }
2587         }
2588
2589         /*
2590          * If the last argument is also an integer, then we have both a count
2591          * and an interval.
2592          */
2593         if (argc > 0 && isdigit(argv[argc - 1][0])) {
2594                 char *end;
2595
2596                 errno = 0;
2597                 count = interval;
2598                 interval = strtoul(argv[argc - 1], &end, 10);
2599
2600                 if (*end == '\0' && errno == 0) {
2601                         if (interval == 0) {
2602                                 (void) fprintf(stderr, gettext("interval "
2603                                     "cannot be zero\n"));
2604                                 usage(B_FALSE);
2605                         }
2606
2607                         /*
2608                          * Ignore the last parameter
2609                          */
2610                         argc--;
2611                 } else {
2612                         interval = 0;
2613                 }
2614         }
2615
2616         *iv = interval;
2617         *cnt = count;
2618         *argcp = argc;
2619 }
2620
2621 static void
2622 get_timestamp_arg(char c)
2623 {
2624         if (c == 'u')
2625                 timestamp_fmt = UDATE;
2626         else if (c == 'd')
2627                 timestamp_fmt = DDATE;
2628         else
2629                 usage(B_FALSE);
2630 }
2631
2632 /*
2633  * zpool iostat [-v] [-T d|u] [pool] ... [interval [count]]
2634  *
2635  *      -v      Display statistics for individual vdevs
2636  *      -T      Display a timestamp in date(1) or Unix format
2637  *
2638  * This command can be tricky because we want to be able to deal with pool
2639  * creation/destruction as well as vdev configuration changes.  The bulk of this
2640  * processing is handled by the pool_list_* routines in zpool_iter.c.  We rely
2641  * on pool_list_update() to detect the addition of new pools.  Configuration
2642  * changes are all handled within libzfs.
2643  */
2644 int
2645 zpool_do_iostat(int argc, char **argv)
2646 {
2647         int c;
2648         int ret;
2649         int npools;
2650         unsigned long interval = 0, count = 0;
2651         zpool_list_t *list;
2652         boolean_t verbose = B_FALSE;
2653         iostat_cbdata_t cb;
2654
2655         /* check options */
2656         while ((c = getopt(argc, argv, "T:v")) != -1) {
2657                 switch (c) {
2658                 case 'T':
2659                         get_timestamp_arg(*optarg);
2660                         break;
2661                 case 'v':
2662                         verbose = B_TRUE;
2663                         break;
2664                 case '?':
2665                         (void) fprintf(stderr, gettext("invalid option '%c'\n"),
2666                             optopt);
2667                         usage(B_FALSE);
2668                 }
2669         }
2670
2671         argc -= optind;
2672         argv += optind;
2673
2674         get_interval_count(&argc, argv, &interval, &count);
2675
2676         /*
2677          * Construct the list of all interesting pools.
2678          */
2679         ret = 0;
2680         if ((list = pool_list_get(argc, argv, NULL, &ret)) == NULL)
2681                 return (1);
2682
2683         if (pool_list_count(list) == 0 && argc != 0) {
2684                 pool_list_free(list);
2685                 return (1);
2686         }
2687
2688         if (pool_list_count(list) == 0 && interval == 0) {
2689                 pool_list_free(list);
2690                 (void) fprintf(stderr, gettext("no pools available\n"));
2691                 return (1);
2692         }
2693
2694         /*
2695          * Enter the main iostat loop.
2696          */
2697         cb.cb_list = list;
2698         cb.cb_verbose = verbose;
2699         cb.cb_iteration = 0;
2700         cb.cb_namewidth = 0;
2701
2702         for (;;) {
2703                 pool_list_update(list);
2704
2705                 if ((npools = pool_list_count(list)) == 0)
2706                         break;
2707
2708                 /*
2709                  * Refresh all statistics.  This is done as an explicit step
2710                  * before calculating the maximum name width, so that any
2711                  * configuration changes are properly accounted for.
2712                  */
2713                 (void) pool_list_iter(list, B_FALSE, refresh_iostat, &cb);
2714
2715                 /*
2716                  * Iterate over all pools to determine the maximum width
2717                  * for the pool / device name column across all pools.
2718                  */
2719                 cb.cb_namewidth = 0;
2720                 (void) pool_list_iter(list, B_FALSE, get_namewidth, &cb);
2721
2722                 if (timestamp_fmt != NODATE)
2723                         print_timestamp(timestamp_fmt);
2724
2725                 /*
2726                  * If it's the first time, or verbose mode, print the header.
2727                  */
2728                 if (++cb.cb_iteration == 1 || verbose)
2729                         print_iostat_header(&cb);
2730
2731                 (void) pool_list_iter(list, B_FALSE, print_iostat, &cb);
2732
2733                 /*
2734                  * If there's more than one pool, and we're not in verbose mode
2735                  * (which prints a separator for us), then print a separator.
2736                  */
2737                 if (npools > 1 && !verbose)
2738                         print_iostat_separator(&cb);
2739
2740                 if (verbose)
2741                         (void) printf("\n");
2742
2743                 /*
2744                  * Flush the output so that redirection to a file isn't buffered
2745                  * indefinitely.
2746                  */
2747                 (void) fflush(stdout);
2748
2749                 if (interval == 0)
2750                         break;
2751
2752                 if (count != 0 && --count == 0)
2753                         break;
2754
2755                 (void) sleep(interval);
2756         }
2757
2758         pool_list_free(list);
2759
2760         return (ret);
2761 }
2762
2763 typedef struct list_cbdata {
2764         boolean_t       cb_verbose;
2765         int             cb_namewidth;
2766         boolean_t       cb_scripted;
2767         zprop_list_t    *cb_proplist;
2768 } list_cbdata_t;
2769
2770 /*
2771  * Given a list of columns to display, output appropriate headers for each one.
2772  */
2773 static void
2774 print_header(list_cbdata_t *cb)
2775 {
2776         zprop_list_t *pl = cb->cb_proplist;
2777         char headerbuf[ZPOOL_MAXPROPLEN];
2778         const char *header;
2779         boolean_t first = B_TRUE;
2780         boolean_t right_justify;
2781         size_t width = 0;
2782
2783         for (; pl != NULL; pl = pl->pl_next) {
2784                 width = pl->pl_width;
2785                 if (first && cb->cb_verbose) {
2786                         /*
2787                          * Reset the width to accommodate the verbose listing
2788                          * of devices.
2789                          */
2790                         width = cb->cb_namewidth;
2791                 }
2792
2793                 if (!first)
2794                         (void) printf("  ");
2795                 else
2796                         first = B_FALSE;
2797
2798                 right_justify = B_FALSE;
2799                 if (pl->pl_prop != ZPROP_INVAL) {
2800                         header = zpool_prop_column_name(pl->pl_prop);
2801                         right_justify = zpool_prop_align_right(pl->pl_prop);
2802                 } else {
2803                         int i;
2804
2805                         for (i = 0; pl->pl_user_prop[i] != '\0'; i++)
2806                                 headerbuf[i] = toupper(pl->pl_user_prop[i]);
2807                         headerbuf[i] = '\0';
2808                         header = headerbuf;
2809                 }
2810
2811                 if (pl->pl_next == NULL && !right_justify)
2812                         (void) printf("%s", header);
2813                 else if (right_justify)
2814                         (void) printf("%*s", width, header);
2815                 else
2816                         (void) printf("%-*s", width, header);
2817
2818         }
2819
2820         (void) printf("\n");
2821 }
2822
2823 /*
2824  * Given a pool and a list of properties, print out all the properties according
2825  * to the described layout.
2826  */
2827 static void
2828 print_pool(zpool_handle_t *zhp, list_cbdata_t *cb)
2829 {
2830         zprop_list_t *pl = cb->cb_proplist;
2831         boolean_t first = B_TRUE;
2832         char property[ZPOOL_MAXPROPLEN];
2833         char *propstr;
2834         boolean_t right_justify;
2835         size_t width;
2836
2837         for (; pl != NULL; pl = pl->pl_next) {
2838
2839                 width = pl->pl_width;
2840                 if (first && cb->cb_verbose) {
2841                         /*
2842                          * Reset the width to accommodate the verbose listing
2843                          * of devices.
2844                          */
2845                         width = cb->cb_namewidth;
2846                 }
2847
2848                 if (!first) {
2849                         if (cb->cb_scripted)
2850                                 (void) printf("\t");
2851                         else
2852                                 (void) printf("  ");
2853                 } else {
2854                         first = B_FALSE;
2855                 }
2856
2857                 right_justify = B_FALSE;
2858                 if (pl->pl_prop != ZPROP_INVAL) {
2859                         if (pl->pl_prop == ZPOOL_PROP_EXPANDSZ &&
2860                             zpool_get_prop_int(zhp, pl->pl_prop, NULL) == 0)
2861                                 propstr = "-";
2862                         else if (zpool_get_prop(zhp, pl->pl_prop, property,
2863                             sizeof (property), NULL) != 0)
2864                                 propstr = "-";
2865                         else
2866                                 propstr = property;
2867
2868                         right_justify = zpool_prop_align_right(pl->pl_prop);
2869                 } else if ((zpool_prop_feature(pl->pl_user_prop) ||
2870                     zpool_prop_unsupported(pl->pl_user_prop)) &&
2871                     zpool_prop_get_feature(zhp, pl->pl_user_prop, property,
2872                     sizeof (property)) == 0) {
2873                         propstr = property;
2874                 } else {
2875                         propstr = "-";
2876                 }
2877
2878
2879                 /*
2880                  * If this is being called in scripted mode, or if this is the
2881                  * last column and it is left-justified, don't include a width
2882                  * format specifier.
2883                  */
2884                 if (cb->cb_scripted || (pl->pl_next == NULL && !right_justify))
2885                         (void) printf("%s", propstr);
2886                 else if (right_justify)
2887                         (void) printf("%*s", width, propstr);
2888                 else
2889                         (void) printf("%-*s", width, propstr);
2890         }
2891
2892         (void) printf("\n");
2893 }
2894
2895 static void
2896 print_one_column(zpool_prop_t prop, uint64_t value, boolean_t scripted)
2897 {
2898         char propval[64];
2899         boolean_t fixed;
2900         size_t width = zprop_width(prop, &fixed, ZFS_TYPE_POOL);
2901
2902         zfs_nicenum(value, propval, sizeof (propval));
2903
2904         if (prop == ZPOOL_PROP_EXPANDSZ && value == 0)
2905                 (void) strlcpy(propval, "-", sizeof (propval));
2906
2907         if (scripted)
2908                 (void) printf("\t%s", propval);
2909         else
2910                 (void) printf("  %*s", width, propval);
2911 }
2912
2913 void
2914 print_list_stats(zpool_handle_t *zhp, const char *name, nvlist_t *nv,
2915     list_cbdata_t *cb, int depth)
2916 {
2917         nvlist_t **child;
2918         vdev_stat_t *vs;
2919         uint_t c, children;
2920         char *vname;
2921         boolean_t scripted = cb->cb_scripted;
2922
2923         verify(nvlist_lookup_uint64_array(nv, ZPOOL_CONFIG_VDEV_STATS,
2924             (uint64_t **)&vs, &c) == 0);
2925
2926         if (name != NULL) {
2927                 if (scripted)
2928                         (void) printf("\t%s", name);
2929                 else if (strlen(name) + depth > cb->cb_namewidth)
2930                         (void) printf("%*s%s", depth, "", name);
2931                 else
2932                         (void) printf("%*s%s%*s", depth, "", name,
2933                             (int)(cb->cb_namewidth - strlen(name) - depth), "");
2934
2935                 /* only toplevel vdevs have capacity stats */
2936                 if (vs->vs_space == 0) {
2937                         if (scripted)
2938                                 (void) printf("\t-\t-\t-");
2939                         else
2940                                 (void) printf("      -      -      -");
2941                 } else {
2942                         print_one_column(ZPOOL_PROP_SIZE, vs->vs_space,
2943                             scripted);
2944                         print_one_column(ZPOOL_PROP_CAPACITY, vs->vs_alloc,
2945                             scripted);
2946                         print_one_column(ZPOOL_PROP_FREE,
2947                             vs->vs_space - vs->vs_alloc, scripted);
2948                 }
2949                 print_one_column(ZPOOL_PROP_EXPANDSZ, vs->vs_esize,
2950                     scripted);
2951                 (void) printf("\n");
2952         }
2953
2954         if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
2955             &child, &children) != 0)
2956                 return;
2957
2958         for (c = 0; c < children; c++) {
2959                 uint64_t ishole = B_FALSE;
2960
2961                 if (nvlist_lookup_uint64(child[c],
2962                     ZPOOL_CONFIG_IS_HOLE, &ishole) == 0 && ishole)
2963                         continue;
2964
2965                 vname = zpool_vdev_name(g_zfs, zhp, child[c], B_FALSE);
2966                 print_list_stats(zhp, vname, child[c], cb, depth + 2);
2967                 free(vname);
2968         }
2969
2970         /*
2971          * Include level 2 ARC devices in iostat output
2972          */
2973         if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_L2CACHE,
2974             &child, &children) != 0)
2975                 return;
2976
2977         if (children > 0) {
2978                 (void) printf("%-*s      -      -      -      -      -      "
2979                     "-\n", cb->cb_namewidth, "cache");
2980                 for (c = 0; c < children; c++) {
2981                         vname = zpool_vdev_name(g_zfs, zhp, child[c],
2982                             B_FALSE);
2983                         print_list_stats(zhp, vname, child[c], cb, depth + 2);
2984                         free(vname);
2985                 }
2986         }
2987 }
2988
2989
2990 /*
2991  * Generic callback function to list a pool.
2992  */
2993 int
2994 list_callback(zpool_handle_t *zhp, void *data)
2995 {
2996         list_cbdata_t *cbp = data;
2997         nvlist_t *config;
2998         nvlist_t *nvroot;
2999
3000         config = zpool_get_config(zhp, NULL);
3001
3002         print_pool(zhp, cbp);
3003         if (!cbp->cb_verbose)
3004                 return (0);
3005
3006         verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
3007             &nvroot) == 0);
3008         print_list_stats(zhp, NULL, nvroot, cbp, 0);
3009
3010         return (0);
3011 }
3012
3013 /*
3014  * zpool list [-H] [-o prop[,prop]*] [-T d|u] [pool] ... [interval [count]]
3015  *
3016  *      -H      Scripted mode.  Don't display headers, and separate properties
3017  *              by a single tab.
3018  *      -o      List of properties to display.  Defaults to
3019  *              "name,size,allocated,free,capacity,health,altroot"
3020  *      -T      Display a timestamp in date(1) or Unix format
3021  *
3022  * List all pools in the system, whether or not they're healthy.  Output space
3023  * statistics for each one, as well as health status summary.
3024  */
3025 int
3026 zpool_do_list(int argc, char **argv)
3027 {
3028         int c;
3029         int ret;
3030         list_cbdata_t cb = { 0 };
3031         static char default_props[] =
3032             "name,size,allocated,free,capacity,dedupratio,"
3033             "health,altroot";
3034         char *props = default_props;
3035         unsigned long interval = 0, count = 0;
3036         zpool_list_t *list;
3037         boolean_t first = B_TRUE;
3038
3039         /* check options */
3040         while ((c = getopt(argc, argv, ":Ho:T:v")) != -1) {
3041                 switch (c) {
3042                 case 'H':
3043                         cb.cb_scripted = B_TRUE;
3044                         break;
3045                 case 'o':
3046                         props = optarg;
3047                         break;
3048                 case 'T':
3049                         get_timestamp_arg(*optarg);
3050                         break;
3051                 case 'v':
3052                         cb.cb_verbose = B_TRUE;
3053                         break;
3054                 case ':':
3055                         (void) fprintf(stderr, gettext("missing argument for "
3056                             "'%c' option\n"), optopt);
3057                         usage(B_FALSE);
3058                         break;
3059                 case '?':
3060                         (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3061                             optopt);
3062                         usage(B_FALSE);
3063                 }
3064         }
3065
3066         argc -= optind;
3067         argv += optind;
3068
3069         get_interval_count(&argc, argv, &interval, &count);
3070
3071         if (zprop_get_list(g_zfs, props, &cb.cb_proplist, ZFS_TYPE_POOL) != 0)
3072                 usage(B_FALSE);
3073
3074         if ((list = pool_list_get(argc, argv, &cb.cb_proplist, &ret)) == NULL)
3075                 return (1);
3076
3077         if (argc == 0 && !cb.cb_scripted && pool_list_count(list) == 0) {
3078                 (void) printf(gettext("no pools available\n"));
3079                 zprop_free_list(cb.cb_proplist);
3080                 return (0);
3081         }
3082
3083         for (;;) {
3084                 pool_list_update(list);
3085
3086                 if (pool_list_count(list) == 0)
3087                         break;
3088
3089                 cb.cb_namewidth = 0;
3090                 (void) pool_list_iter(list, B_FALSE, get_namewidth, &cb);
3091
3092                 if (timestamp_fmt != NODATE)
3093                         print_timestamp(timestamp_fmt);
3094
3095                 if (!cb.cb_scripted && (first || cb.cb_verbose)) {
3096                         print_header(&cb);
3097                         first = B_FALSE;
3098                 }
3099                 ret = pool_list_iter(list, B_TRUE, list_callback, &cb);
3100
3101                 if (interval == 0)
3102                         break;
3103
3104                 if (count != 0 && --count == 0)
3105                         break;
3106
3107                 (void) sleep(interval);
3108         }
3109
3110         zprop_free_list(cb.cb_proplist);
3111         return (ret);
3112 }
3113
3114 static nvlist_t *
3115 zpool_get_vdev_by_name(nvlist_t *nv, char *name)
3116 {
3117         nvlist_t **child;
3118         uint_t c, children;
3119         nvlist_t *match;
3120         char *path;
3121
3122         if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
3123             &child, &children) != 0) {
3124                 verify(nvlist_lookup_string(nv, ZPOOL_CONFIG_PATH, &path) == 0);
3125                 if (strncmp(name, _PATH_DEV, sizeof(_PATH_DEV) - 1) == 0)
3126                         name += sizeof(_PATH_DEV) - 1;
3127                 if (strncmp(path, _PATH_DEV, sizeof(_PATH_DEV) - 1) == 0)
3128                         path += sizeof(_PATH_DEV) - 1;
3129                 if (strcmp(name, path) == 0)
3130                         return (nv);
3131                 return (NULL);
3132         }
3133
3134         for (c = 0; c < children; c++)
3135                 if ((match = zpool_get_vdev_by_name(child[c], name)) != NULL)
3136                         return (match);
3137
3138         return (NULL);
3139 }
3140
3141 static int
3142 zpool_do_attach_or_replace(int argc, char **argv, int replacing)
3143 {
3144         boolean_t force = B_FALSE;
3145         int c;
3146         nvlist_t *nvroot;
3147         char *poolname, *old_disk, *new_disk;
3148         zpool_handle_t *zhp;
3149         int ret;
3150
3151         /* check options */
3152         while ((c = getopt(argc, argv, "f")) != -1) {
3153                 switch (c) {
3154                 case 'f':
3155                         force = B_TRUE;
3156                         break;
3157                 case '?':
3158                         (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3159                             optopt);
3160                         usage(B_FALSE);
3161                 }
3162         }
3163
3164         argc -= optind;
3165         argv += optind;
3166
3167         /* get pool name and check number of arguments */
3168         if (argc < 1) {
3169                 (void) fprintf(stderr, gettext("missing pool name argument\n"));
3170                 usage(B_FALSE);
3171         }
3172
3173         poolname = argv[0];
3174
3175         if (argc < 2) {
3176                 (void) fprintf(stderr,
3177                     gettext("missing <device> specification\n"));
3178                 usage(B_FALSE);
3179         }
3180
3181         old_disk = argv[1];
3182
3183         if (argc < 3) {
3184                 if (!replacing) {
3185                         (void) fprintf(stderr,
3186                             gettext("missing <new_device> specification\n"));
3187                         usage(B_FALSE);
3188                 }
3189                 new_disk = old_disk;
3190                 argc -= 1;
3191                 argv += 1;
3192         } else {
3193                 new_disk = argv[2];
3194                 argc -= 2;
3195                 argv += 2;
3196         }
3197
3198         if (argc > 1) {
3199                 (void) fprintf(stderr, gettext("too many arguments\n"));
3200                 usage(B_FALSE);
3201         }
3202
3203         if ((zhp = zpool_open(g_zfs, poolname)) == NULL)
3204                 return (1);
3205
3206         if (zpool_get_config(zhp, NULL) == NULL) {
3207                 (void) fprintf(stderr, gettext("pool '%s' is unavailable\n"),
3208                     poolname);
3209                 zpool_close(zhp);
3210                 return (1);
3211         }
3212
3213         nvroot = make_root_vdev(zhp, force, B_FALSE, replacing, B_FALSE,
3214             argc, argv);
3215         if (nvroot == NULL) {
3216                 zpool_close(zhp);
3217                 return (1);
3218         }
3219
3220         ret = zpool_vdev_attach(zhp, old_disk, new_disk, nvroot, replacing);
3221
3222         nvlist_free(nvroot);
3223         zpool_close(zhp);
3224
3225         return (ret);
3226 }
3227
3228 /*
3229  * zpool replace [-f] <pool> <device> <new_device>
3230  *
3231  *      -f      Force attach, even if <new_device> appears to be in use.
3232  *
3233  * Replace <device> with <new_device>.
3234  */
3235 /* ARGSUSED */
3236 int
3237 zpool_do_replace(int argc, char **argv)
3238 {
3239         return (zpool_do_attach_or_replace(argc, argv, B_TRUE));
3240 }
3241
3242 /*
3243  * zpool attach [-f] <pool> <device> <new_device>
3244  *
3245  *      -f      Force attach, even if <new_device> appears to be in use.
3246  *
3247  * Attach <new_device> to the mirror containing <device>.  If <device> is not
3248  * part of a mirror, then <device> will be transformed into a mirror of
3249  * <device> and <new_device>.  In either case, <new_device> will begin life
3250  * with a DTL of [0, now], and will immediately begin to resilver itself.
3251  */
3252 int
3253 zpool_do_attach(int argc, char **argv)
3254 {
3255         return (zpool_do_attach_or_replace(argc, argv, B_FALSE));
3256 }
3257
3258 /*
3259  * zpool detach [-f] <pool> <device>
3260  *
3261  *      -f      Force detach of <device>, even if DTLs argue against it
3262  *              (not supported yet)
3263  *
3264  * Detach a device from a mirror.  The operation will be refused if <device>
3265  * is the last device in the mirror, or if the DTLs indicate that this device
3266  * has the only valid copy of some data.
3267  */
3268 /* ARGSUSED */
3269 int
3270 zpool_do_detach(int argc, char **argv)
3271 {
3272         int c;
3273         char *poolname, *path;
3274         zpool_handle_t *zhp;
3275         int ret;
3276
3277         /* check options */
3278         while ((c = getopt(argc, argv, "f")) != -1) {
3279                 switch (c) {
3280                 case 'f':
3281                 case '?':
3282                         (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3283                             optopt);
3284                         usage(B_FALSE);
3285                 }
3286         }
3287
3288         argc -= optind;
3289         argv += optind;
3290
3291         /* get pool name and check number of arguments */
3292         if (argc < 1) {
3293                 (void) fprintf(stderr, gettext("missing pool name argument\n"));
3294                 usage(B_FALSE);
3295         }
3296
3297         if (argc < 2) {
3298                 (void) fprintf(stderr,
3299                     gettext("missing <device> specification\n"));
3300                 usage(B_FALSE);
3301         }
3302
3303         poolname = argv[0];
3304         path = argv[1];
3305
3306         if ((zhp = zpool_open(g_zfs, poolname)) == NULL)
3307                 return (1);
3308
3309         ret = zpool_vdev_detach(zhp, path);
3310
3311         zpool_close(zhp);
3312
3313         return (ret);
3314 }
3315
3316 /*
3317  * zpool split [-n] [-o prop=val] ...
3318  *              [-o mntopt] ...
3319  *              [-R altroot] <pool> <newpool> [<device> ...]
3320  *
3321  *      -n      Do not split the pool, but display the resulting layout if
3322  *              it were to be split.
3323  *      -o      Set property=value, or set mount options.
3324  *      -R      Mount the split-off pool under an alternate root.
3325  *
3326  * Splits the named pool and gives it the new pool name.  Devices to be split
3327  * off may be listed, provided that no more than one device is specified
3328  * per top-level vdev mirror.  The newly split pool is left in an exported
3329  * state unless -R is specified.
3330  *
3331  * Restrictions: the top-level of the pool pool must only be made up of
3332  * mirrors; all devices in the pool must be healthy; no device may be
3333  * undergoing a resilvering operation.
3334  */
3335 int
3336 zpool_do_split(int argc, char **argv)
3337 {
3338         char *srcpool, *newpool, *propval;
3339         char *mntopts = NULL;
3340         splitflags_t flags;
3341         int c, ret = 0;
3342         zpool_handle_t *zhp;
3343         nvlist_t *config, *props = NULL;
3344
3345         flags.dryrun = B_FALSE;
3346         flags.import = B_FALSE;
3347
3348         /* check options */
3349         while ((c = getopt(argc, argv, ":R:no:")) != -1) {
3350                 switch (c) {
3351                 case 'R':
3352                         flags.import = B_TRUE;
3353                         if (add_prop_list(
3354                             zpool_prop_to_name(ZPOOL_PROP_ALTROOT), optarg,
3355                             &props, B_TRUE) != 0) {
3356                                 if (props)
3357                                         nvlist_free(props);
3358                                 usage(B_FALSE);
3359                         }
3360                         break;
3361                 case 'n':
3362                         flags.dryrun = B_TRUE;
3363                         break;
3364                 case 'o':
3365                         if ((propval = strchr(optarg, '=')) != NULL) {
3366                                 *propval = '\0';
3367                                 propval++;
3368                                 if (add_prop_list(optarg, propval,
3369                                     &props, B_TRUE) != 0) {
3370                                         if (props)
3371                                                 nvlist_free(props);
3372                                         usage(B_FALSE);
3373                                 }
3374                         } else {
3375                                 mntopts = optarg;
3376                         }
3377                         break;
3378                 case ':':
3379                         (void) fprintf(stderr, gettext("missing argument for "
3380                             "'%c' option\n"), optopt);
3381                         usage(B_FALSE);
3382                         break;
3383                 case '?':
3384                         (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3385                             optopt);
3386                         usage(B_FALSE);
3387                         break;
3388                 }
3389         }
3390
3391         if (!flags.import && mntopts != NULL) {
3392                 (void) fprintf(stderr, gettext("setting mntopts is only "
3393                     "valid when importing the pool\n"));
3394                 usage(B_FALSE);
3395         }
3396
3397         argc -= optind;
3398         argv += optind;
3399
3400         if (argc < 1) {
3401                 (void) fprintf(stderr, gettext("Missing pool name\n"));
3402                 usage(B_FALSE);
3403         }
3404         if (argc < 2) {
3405                 (void) fprintf(stderr, gettext("Missing new pool name\n"));
3406                 usage(B_FALSE);
3407         }
3408
3409         srcpool = argv[0];
3410         newpool = argv[1];
3411
3412         argc -= 2;
3413         argv += 2;
3414
3415         if ((zhp = zpool_open(g_zfs, srcpool)) == NULL)
3416                 return (1);
3417
3418         config = split_mirror_vdev(zhp, newpool, props, flags, argc, argv);
3419         if (config == NULL) {
3420                 ret = 1;
3421         } else {
3422                 if (flags.dryrun) {
3423                         (void) printf(gettext("would create '%s' with the "
3424                             "following layout:\n\n"), newpool);
3425                         print_vdev_tree(NULL, newpool, config, 0, B_FALSE);
3426                 }
3427                 nvlist_free(config);
3428         }
3429
3430         zpool_close(zhp);
3431
3432         if (ret != 0 || flags.dryrun || !flags.import)
3433                 return (ret);
3434
3435         /*
3436          * The split was successful. Now we need to open the new
3437          * pool and import it.
3438          */
3439         if ((zhp = zpool_open_canfail(g_zfs, newpool)) == NULL)
3440                 return (1);
3441         if (zpool_get_state(zhp) != POOL_STATE_UNAVAIL &&
3442             zpool_enable_datasets(zhp, mntopts, 0) != 0) {
3443                 ret = 1;
3444                 (void) fprintf(stderr, gettext("Split was successful, but "
3445                     "the datasets could not all be mounted\n"));
3446                 (void) fprintf(stderr, gettext("Try doing '%s' with a "
3447                     "different altroot\n"), "zpool import");
3448         }
3449         zpool_close(zhp);
3450
3451         return (ret);
3452 }
3453
3454
3455
3456 /*
3457  * zpool online <pool> <device> ...
3458  */
3459 int
3460 zpool_do_online(int argc, char **argv)
3461 {
3462         int c, i;
3463         char *poolname;
3464         zpool_handle_t *zhp;
3465         int ret = 0;
3466         vdev_state_t newstate;
3467         int flags = 0;
3468
3469         /* check options */
3470         while ((c = getopt(argc, argv, "et")) != -1) {
3471                 switch (c) {
3472                 case 'e':
3473                         flags |= ZFS_ONLINE_EXPAND;
3474                         break;
3475                 case 't':
3476                 case '?':
3477                         (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3478                             optopt);
3479                         usage(B_FALSE);
3480                 }
3481         }
3482
3483         argc -= optind;
3484         argv += optind;
3485
3486         /* get pool name and check number of arguments */
3487         if (argc < 1) {
3488                 (void) fprintf(stderr, gettext("missing pool name\n"));
3489                 usage(B_FALSE);
3490         }
3491         if (argc < 2) {
3492                 (void) fprintf(stderr, gettext("missing device name\n"));
3493                 usage(B_FALSE);
3494         }
3495
3496         poolname = argv[0];
3497
3498         if ((zhp = zpool_open(g_zfs, poolname)) == NULL)
3499                 return (1);
3500
3501         for (i = 1; i < argc; i++) {
3502                 if (zpool_vdev_online(zhp, argv[i], flags, &newstate) == 0) {
3503                         if (newstate != VDEV_STATE_HEALTHY) {
3504                                 (void) printf(gettext("warning: device '%s' "
3505                                     "onlined, but remains in faulted state\n"),
3506                                     argv[i]);
3507                                 if (newstate == VDEV_STATE_FAULTED)
3508                                         (void) printf(gettext("use 'zpool "
3509                                             "clear' to restore a faulted "
3510                                             "device\n"));
3511                                 else
3512                                         (void) printf(gettext("use 'zpool "
3513                                             "replace' to replace devices "
3514                                             "that are no longer present\n"));
3515                         }
3516                 } else {
3517                         ret = 1;
3518                 }
3519         }
3520
3521         zpool_close(zhp);
3522
3523         return (ret);
3524 }
3525
3526 /*
3527  * zpool offline [-ft] <pool> <device> ...
3528  *
3529  *      -f      Force the device into the offline state, even if doing
3530  *              so would appear to compromise pool availability.
3531  *              (not supported yet)
3532  *
3533  *      -t      Only take the device off-line temporarily.  The offline
3534  *              state will not be persistent across reboots.
3535  */
3536 /* ARGSUSED */
3537 int
3538 zpool_do_offline(int argc, char **argv)
3539 {
3540         int c, i;
3541         char *poolname;
3542         zpool_handle_t *zhp;
3543         int ret = 0;
3544         boolean_t istmp = B_FALSE;
3545
3546         /* check options */
3547         while ((c = getopt(argc, argv, "ft")) != -1) {
3548                 switch (c) {
3549                 case 't':
3550                         istmp = B_TRUE;
3551                         break;
3552                 case 'f':
3553                 case '?':
3554                         (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3555                             optopt);
3556                         usage(B_FALSE);
3557                 }
3558         }
3559
3560         argc -= optind;
3561         argv += optind;
3562
3563         /* get pool name and check number of arguments */
3564         if (argc < 1) {
3565                 (void) fprintf(stderr, gettext("missing pool name\n"));
3566                 usage(B_FALSE);
3567         }
3568         if (argc < 2) {
3569                 (void) fprintf(stderr, gettext("missing device name\n"));
3570                 usage(B_FALSE);
3571         }
3572
3573         poolname = argv[0];
3574
3575         if ((zhp = zpool_open(g_zfs, poolname)) == NULL)
3576                 return (1);
3577
3578         for (i = 1; i < argc; i++) {
3579                 if (zpool_vdev_offline(zhp, argv[i], istmp) != 0)
3580                         ret = 1;
3581         }
3582
3583         zpool_close(zhp);
3584
3585         return (ret);
3586 }
3587
3588 /*
3589  * zpool clear <pool> [device]
3590  *
3591  * Clear all errors associated with a pool or a particular device.
3592  */
3593 int
3594 zpool_do_clear(int argc, char **argv)
3595 {
3596         int c;
3597         int ret = 0;
3598         boolean_t dryrun = B_FALSE;
3599         boolean_t do_rewind = B_FALSE;
3600         boolean_t xtreme_rewind = B_FALSE;
3601         uint32_t rewind_policy = ZPOOL_NO_REWIND;
3602         nvlist_t *policy = NULL;
3603         zpool_handle_t *zhp;
3604         char *pool, *device;
3605
3606         /* check options */
3607         while ((c = getopt(argc, argv, "FnX")) != -1) {
3608                 switch (c) {
3609                 case 'F':
3610                         do_rewind = B_TRUE;
3611                         break;
3612                 case 'n':
3613                         dryrun = B_TRUE;
3614                         break;
3615                 case 'X':
3616                         xtreme_rewind = B_TRUE;
3617                         break;
3618                 case '?':
3619                         (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3620                             optopt);
3621                         usage(B_FALSE);
3622                 }
3623         }
3624
3625         argc -= optind;
3626         argv += optind;
3627
3628         if (argc < 1) {
3629                 (void) fprintf(stderr, gettext("missing pool name\n"));
3630                 usage(B_FALSE);
3631         }
3632
3633         if (argc > 2) {
3634                 (void) fprintf(stderr, gettext("too many arguments\n"));
3635                 usage(B_FALSE);
3636         }
3637
3638         if ((dryrun || xtreme_rewind) && !do_rewind) {
3639                 (void) fprintf(stderr,
3640                     gettext("-n or -X only meaningful with -F\n"));
3641                 usage(B_FALSE);
3642         }
3643         if (dryrun)
3644                 rewind_policy = ZPOOL_TRY_REWIND;
3645         else if (do_rewind)
3646                 rewind_policy = ZPOOL_DO_REWIND;
3647         if (xtreme_rewind)
3648                 rewind_policy |= ZPOOL_EXTREME_REWIND;
3649
3650         /* In future, further rewind policy choices can be passed along here */
3651         if (nvlist_alloc(&policy, NV_UNIQUE_NAME, 0) != 0 ||
3652             nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind_policy) != 0)
3653                 return (1);
3654
3655         pool = argv[0];
3656         device = argc == 2 ? argv[1] : NULL;
3657
3658         if ((zhp = zpool_open_canfail(g_zfs, pool)) == NULL) {
3659                 nvlist_free(policy);
3660                 return (1);
3661         }
3662
3663         if (zpool_clear(zhp, device, policy) != 0)
3664                 ret = 1;
3665
3666         zpool_close(zhp);
3667
3668         nvlist_free(policy);
3669
3670         return (ret);
3671 }
3672
3673 /*
3674  * zpool reguid <pool>
3675  */
3676 int
3677 zpool_do_reguid(int argc, char **argv)
3678 {
3679         int c;
3680         char *poolname;
3681         zpool_handle_t *zhp;
3682         int ret = 0;
3683
3684         /* check options */
3685         while ((c = getopt(argc, argv, "")) != -1) {
3686                 switch (c) {
3687                 case '?':
3688                         (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3689                             optopt);
3690                         usage(B_FALSE);
3691                 }
3692         }
3693
3694         argc -= optind;
3695         argv += optind;
3696
3697         /* get pool name and check number of arguments */
3698         if (argc < 1) {
3699                 (void) fprintf(stderr, gettext("missing pool name\n"));
3700                 usage(B_FALSE);
3701         }
3702
3703         if (argc > 1) {
3704                 (void) fprintf(stderr, gettext("too many arguments\n"));
3705                 usage(B_FALSE);
3706         }
3707
3708         poolname = argv[0];
3709         if ((zhp = zpool_open(g_zfs, poolname)) == NULL)
3710                 return (1);
3711
3712         ret = zpool_reguid(zhp);
3713
3714         zpool_close(zhp);
3715         return (ret);
3716 }
3717
3718
3719 /*
3720  * zpool reopen <pool>
3721  *
3722  * Reopen the pool so that the kernel can update the sizes of all vdevs.
3723  *
3724  * NOTE: This command is currently undocumented.  If the command is ever
3725  * exposed then the appropriate usage() messages will need to be made.
3726  */
3727 int
3728 zpool_do_reopen(int argc, char **argv)
3729 {
3730         int ret = 0;
3731         zpool_handle_t *zhp;
3732         char *pool;
3733
3734         argc--;
3735         argv++;
3736
3737         if (argc != 1)
3738                 return (2);
3739
3740         pool = argv[0];
3741         if ((zhp = zpool_open_canfail(g_zfs, pool)) == NULL)
3742                 return (1);
3743
3744         ret = zpool_reopen(zhp);
3745         zpool_close(zhp);
3746         return (ret);
3747 }
3748
3749 typedef struct scrub_cbdata {
3750         int     cb_type;
3751         int     cb_argc;
3752         char    **cb_argv;
3753 } scrub_cbdata_t;
3754
3755 int
3756 scrub_callback(zpool_handle_t *zhp, void *data)
3757 {
3758         scrub_cbdata_t *cb = data;
3759         int err;
3760
3761         /*
3762          * Ignore faulted pools.
3763          */
3764         if (zpool_get_state(zhp) == POOL_STATE_UNAVAIL) {
3765                 (void) fprintf(stderr, gettext("cannot scrub '%s': pool is "
3766                     "currently unavailable\n"), zpool_get_name(zhp));
3767                 return (1);
3768         }
3769
3770         err = zpool_scan(zhp, cb->cb_type);
3771
3772         return (err != 0);
3773 }
3774
3775 /*
3776  * zpool scrub [-s] <pool> ...
3777  *
3778  *      -s      Stop.  Stops any in-progress scrub.
3779  */
3780 int
3781 zpool_do_scrub(int argc, char **argv)
3782 {
3783         int c;
3784         scrub_cbdata_t cb;
3785
3786         cb.cb_type = POOL_SCAN_SCRUB;
3787
3788         /* check options */
3789         while ((c = getopt(argc, argv, "s")) != -1) {
3790                 switch (c) {
3791                 case 's':
3792                         cb.cb_type = POOL_SCAN_NONE;
3793                         break;
3794                 case '?':
3795                         (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3796                             optopt);
3797                         usage(B_FALSE);
3798                 }
3799         }
3800
3801         cb.cb_argc = argc;
3802         cb.cb_argv = argv;
3803         argc -= optind;
3804         argv += optind;
3805
3806         if (argc < 1) {
3807                 (void) fprintf(stderr, gettext("missing pool name argument\n"));
3808                 usage(B_FALSE);
3809         }
3810
3811         return (for_each_pool(argc, argv, B_TRUE, NULL, scrub_callback, &cb));
3812 }
3813
3814 typedef struct status_cbdata {
3815         int             cb_count;
3816         boolean_t       cb_allpools;
3817         boolean_t       cb_verbose;
3818         boolean_t       cb_explain;
3819         boolean_t       cb_first;
3820         boolean_t       cb_dedup_stats;
3821 } status_cbdata_t;
3822
3823 /*
3824  * Print out detailed scrub status.
3825  */
3826 void
3827 print_scan_status(pool_scan_stat_t *ps)
3828 {
3829         time_t start, end;
3830         uint64_t elapsed, mins_left, hours_left;
3831         uint64_t pass_exam, examined, total;
3832         uint_t rate;
3833         double fraction_done;
3834         char processed_buf[7], examined_buf[7], total_buf[7], rate_buf[7];
3835
3836         (void) printf(gettext("  scan: "));
3837
3838         /* If there's never been a scan, there's not much to say. */
3839         if (ps == NULL || ps->pss_func == POOL_SCAN_NONE ||
3840             ps->pss_func >= POOL_SCAN_FUNCS) {
3841                 (void) printf(gettext("none requested\n"));
3842                 return;
3843         }
3844
3845         start = ps->pss_start_time;
3846         end = ps->pss_end_time;
3847         zfs_nicenum(ps->pss_processed, processed_buf, sizeof (processed_buf));
3848
3849         assert(ps->pss_func == POOL_SCAN_SCRUB ||
3850             ps->pss_func == POOL_SCAN_RESILVER);
3851         /*
3852          * Scan is finished or canceled.
3853          */
3854         if (ps->pss_state == DSS_FINISHED) {
3855                 uint64_t minutes_taken = (end - start) / 60;
3856                 char *fmt;
3857
3858                 if (ps->pss_func == POOL_SCAN_SCRUB) {
3859                         fmt = gettext("scrub repaired %s in %lluh%um with "
3860                             "%llu errors on %s");
3861                 } else if (ps->pss_func == POOL_SCAN_RESILVER) {
3862                         fmt = gettext("resilvered %s in %lluh%um with "
3863                             "%llu errors on %s");
3864                 }
3865                 /* LINTED */
3866                 (void) printf(fmt, processed_buf,
3867                     (u_longlong_t)(minutes_taken / 60),
3868                     (uint_t)(minutes_taken % 60),
3869                     (u_longlong_t)ps->pss_errors,
3870                     ctime((time_t *)&end));
3871                 return;
3872         } else if (ps->pss_state == DSS_CANCELED) {
3873                 if (ps->pss_func == POOL_SCAN_SCRUB) {
3874                         (void) printf(gettext("scrub canceled on %s"),
3875                             ctime(&end));
3876                 } else if (ps->pss_func == POOL_SCAN_RESILVER) {
3877                         (void) printf(gettext("resilver canceled on %s"),
3878                             ctime(&end));
3879                 }
3880                 return;
3881         }
3882
3883         assert(ps->pss_state == DSS_SCANNING);
3884
3885         /*
3886          * Scan is in progress.
3887          */
3888         if (ps->pss_func == POOL_SCAN_SCRUB) {
3889                 (void) printf(gettext("scrub in progress since %s"),
3890                     ctime(&start));
3891         } else if (ps->pss_func == POOL_SCAN_RESILVER) {
3892                 (void) printf(gettext("resilver in progress since %s"),
3893                     ctime(&start));
3894         }
3895
3896         examined = ps->pss_examined ? ps->pss_examined : 1;
3897         total = ps->pss_to_examine;
3898         fraction_done = (double)examined / total;
3899
3900         /* elapsed time for this pass */
3901         elapsed = time(NULL) - ps->pss_pass_start;
3902         elapsed = elapsed ? elapsed : 1;
3903         pass_exam = ps->pss_pass_exam ? ps->pss_pass_exam : 1;
3904         rate = pass_exam / elapsed;
3905         rate = rate ? rate : 1;
3906         mins_left = ((total - examined) / rate) / 60;
3907         hours_left = mins_left / 60;
3908
3909         zfs_nicenum(examined, examined_buf, sizeof (examined_buf));
3910         zfs_nicenum(total, total_buf, sizeof (total_buf));
3911         zfs_nicenum(rate, rate_buf, sizeof (rate_buf));
3912
3913         /*
3914          * do not print estimated time if hours_left is more than 30 days
3915          */
3916         (void) printf(gettext("        %s scanned out of %s at %s/s"),
3917             examined_buf, total_buf, rate_buf);
3918         if (hours_left < (30 * 24)) {
3919                 (void) printf(gettext(", %lluh%um to go\n"),
3920                     (u_longlong_t)hours_left, (uint_t)(mins_left % 60));
3921         } else {
3922                 (void) printf(gettext(
3923                     ", (scan is slow, no estimated time)\n"));
3924         }
3925
3926         if (ps->pss_func == POOL_SCAN_RESILVER) {
3927                 (void) printf(gettext("        %s resilvered, %.2f%% done\n"),
3928                     processed_buf, 100 * fraction_done);
3929         } else if (ps->pss_func == POOL_SCAN_SCRUB) {
3930                 (void) printf(gettext("        %s repaired, %.2f%% done\n"),
3931                     processed_buf, 100 * fraction_done);
3932         }
3933 }
3934
3935 static void
3936 print_error_log(zpool_handle_t *zhp)
3937 {
3938         nvlist_t *nverrlist = NULL;
3939         nvpair_t *elem;
3940         char *pathname;
3941         size_t len = MAXPATHLEN * 2;
3942
3943         if (zpool_get_errlog(zhp, &nverrlist) != 0) {
3944                 (void) printf("errors: List of errors unavailable "
3945                     "(insufficient privileges)\n");
3946                 return;
3947         }
3948
3949         (void) printf("errors: Permanent errors have been "
3950             "detected in the following files:\n\n");
3951
3952         pathname = safe_malloc(len);
3953         elem = NULL;
3954         while ((elem = nvlist_next_nvpair(nverrlist, elem)) != NULL) {
3955                 nvlist_t *nv;
3956                 uint64_t dsobj, obj;
3957
3958                 verify(nvpair_value_nvlist(elem, &nv) == 0);
3959                 verify(nvlist_lookup_uint64(nv, ZPOOL_ERR_DATASET,
3960                     &dsobj) == 0);
3961                 verify(nvlist_lookup_uint64(nv, ZPOOL_ERR_OBJECT,
3962                     &obj) == 0);
3963                 zpool_obj_to_path(zhp, dsobj, obj, pathname, len);
3964                 (void) printf("%7s %s\n", "", pathname);
3965         }
3966         free(pathname);
3967         nvlist_free(nverrlist);
3968 }
3969
3970 static void
3971 print_spares(zpool_handle_t *zhp, nvlist_t **spares, uint_t nspares,
3972     int namewidth)
3973 {
3974         uint_t i;
3975         char *name;
3976
3977         if (nspares == 0)
3978                 return;
3979
3980         (void) printf(gettext("\tspares\n"));
3981
3982         for (i = 0; i < nspares; i++) {
3983                 name = zpool_vdev_name(g_zfs, zhp, spares[i], B_FALSE);
3984                 print_status_config(zhp, name, spares[i],
3985                     namewidth, 2, B_TRUE);
3986                 free(name);
3987         }
3988 }
3989
3990 static void
3991 print_l2cache(zpool_handle_t *zhp, nvlist_t **l2cache, uint_t nl2cache,
3992     int namewidth)
3993 {
3994         uint_t i;
3995         char *name;
3996
3997         if (nl2cache == 0)
3998                 return;
3999
4000         (void) printf(gettext("\tcache\n"));
4001
4002         for (i = 0; i < nl2cache; i++) {
4003                 name = zpool_vdev_name(g_zfs, zhp, l2cache[i], B_FALSE);
4004                 print_status_config(zhp, name, l2cache[i],
4005                     namewidth, 2, B_FALSE);
4006                 free(name);
4007         }
4008 }
4009
4010 static void
4011 print_dedup_stats(nvlist_t *config)
4012 {
4013         ddt_histogram_t *ddh;
4014         ddt_stat_t *dds;
4015         ddt_object_t *ddo;
4016         uint_t c;
4017
4018         /*
4019          * If the pool was faulted then we may not have been able to
4020          * obtain the config. Otherwise, if we have anything in the dedup
4021          * table continue processing the stats.
4022          */
4023         if (nvlist_lookup_uint64_array(config, ZPOOL_CONFIG_DDT_OBJ_STATS,
4024             (uint64_t **)&ddo, &c) != 0)
4025                 return;
4026
4027         (void) printf("\n");
4028         (void) printf(gettext(" dedup: "));
4029         if (ddo->ddo_count == 0) {
4030                 (void) printf(gettext("no DDT entries\n"));
4031                 return;
4032         }
4033
4034         (void) printf("DDT entries %llu, size %llu on disk, %llu in core\n",
4035             (u_longlong_t)ddo->ddo_count,
4036             (u_longlong_t)ddo->ddo_dspace,
4037             (u_longlong_t)ddo->ddo_mspace);
4038
4039         verify(nvlist_lookup_uint64_array(config, ZPOOL_CONFIG_DDT_STATS,
4040             (uint64_t **)&dds, &c) == 0);
4041         verify(nvlist_lookup_uint64_array(config, ZPOOL_CONFIG_DDT_HISTOGRAM,
4042             (uint64_t **)&ddh, &c) == 0);
4043         zpool_dump_ddt(dds, ddh);
4044 }
4045
4046 /*
4047  * Display a summary of pool status.  Displays a summary such as:
4048  *
4049  *        pool: tank
4050  *      status: DEGRADED
4051  *      reason: One or more devices ...
4052  *         see: http://illumos.org/msg/ZFS-xxxx-01
4053  *      config:
4054  *              mirror          DEGRADED
4055  *                c1t0d0        OK
4056  *                c2t0d0        UNAVAIL
4057  *
4058  * When given the '-v' option, we print out the complete config.  If the '-e'
4059  * option is specified, then we print out error rate information as well.
4060  */
4061 int
4062 status_callback(zpool_handle_t *zhp, void *data)
4063 {
4064         status_cbdata_t *cbp = data;
4065         nvlist_t *config, *nvroot;
4066         char *msgid;
4067         int reason;
4068         const char *health;
4069         uint_t c;
4070         vdev_stat_t *vs;
4071
4072         config = zpool_get_config(zhp, NULL);
4073         reason = zpool_get_status(zhp, &msgid);
4074
4075         cbp->cb_count++;
4076
4077         /*
4078          * If we were given 'zpool status -x', only report those pools with
4079          * problems.
4080          */
4081         if (cbp->cb_explain &&
4082             (reason == ZPOOL_STATUS_OK ||
4083             reason == ZPOOL_STATUS_VERSION_OLDER ||
4084             reason == ZPOOL_STATUS_FEAT_DISABLED)) {
4085                 if (!cbp->cb_allpools) {
4086                         (void) printf(gettext("pool '%s' is healthy\n"),
4087                             zpool_get_name(zhp));
4088                         if (cbp->cb_first)
4089                                 cbp->cb_first = B_FALSE;
4090                 }
4091                 return (0);
4092         }
4093
4094         if (cbp->cb_first)
4095                 cbp->cb_first = B_FALSE;
4096         else
4097                 (void) printf("\n");
4098
4099         verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
4100             &nvroot) == 0);
4101         verify(nvlist_lookup_uint64_array(nvroot, ZPOOL_CONFIG_VDEV_STATS,
4102             (uint64_t **)&vs, &c) == 0);
4103         health = zpool_state_to_name(vs->vs_state, vs->vs_aux);
4104
4105         (void) printf(gettext("  pool: %s\n"), zpool_get_name(zhp));
4106         (void) printf(gettext(" state: %s\n"), health);
4107
4108         switch (reason) {
4109         case ZPOOL_STATUS_MISSING_DEV_R:
4110                 (void) printf(gettext("status: One or more devices could not "
4111                     "be opened.  Sufficient replicas exist for\n\tthe pool to "
4112                     "continue functioning in a degraded state.\n"));
4113                 (void) printf(gettext("action: Attach the missing device and "
4114                     "online it using 'zpool online'.\n"));
4115                 break;
4116
4117         case ZPOOL_STATUS_MISSING_DEV_NR:
4118                 (void) printf(gettext("status: One or more devices could not "
4119                     "be opened.  There are insufficient\n\treplicas for the "
4120                     "pool to continue functioning.\n"));
4121                 (void) printf(gettext("action: Attach the missing device and "
4122                     "online it using 'zpool online'.\n"));
4123                 break;
4124
4125         case ZPOOL_STATUS_CORRUPT_LABEL_R:
4126                 (void) printf(gettext("status: One or more devices could not "
4127                     "be used because the label is missing or\n\tinvalid.  "
4128                     "Sufficient replicas exist for the pool to continue\n\t"
4129                     "functioning in a degraded state.\n"));
4130                 (void) printf(gettext("action: Replace the device using "
4131                     "'zpool replace'.\n"));
4132                 break;
4133
4134         case ZPOOL_STATUS_CORRUPT_LABEL_NR:
4135                 (void) printf(gettext("status: One or more devices could not "
4136                     "be used because the label is missing \n\tor invalid.  "
4137                     "There are insufficient replicas for the pool to "
4138                     "continue\n\tfunctioning.\n"));
4139                 zpool_explain_recover(zpool_get_handle(zhp),
4140                     zpool_get_name(zhp), reason, config);
4141                 break;
4142
4143         case ZPOOL_STATUS_FAILING_DEV:
4144                 (void) printf(gettext("status: One or more devices has "
4145                     "experienced an unrecoverable error.  An\n\tattempt was "
4146                     "made to correct the error.  Applications are "
4147                     "unaffected.\n"));
4148                 (void) printf(gettext("action: Determine if the device needs "
4149                     "to be replaced, and clear the errors\n\tusing "
4150                     "'zpool clear' or replace the device with 'zpool "
4151                     "replace'.\n"));
4152                 break;
4153
4154         case ZPOOL_STATUS_OFFLINE_DEV:
4155                 (void) printf(gettext("status: One or more devices has "
4156                     "been taken offline by the administrator.\n\tSufficient "
4157                     "replicas exist for the pool to continue functioning in "
4158                     "a\n\tdegraded state.\n"));
4159                 (void) printf(gettext("action: Online the device using "
4160                     "'zpool online' or replace the device with\n\t'zpool "
4161                     "replace'.\n"));
4162                 break;
4163
4164         case ZPOOL_STATUS_REMOVED_DEV:
4165                 (void) printf(gettext("status: One or more devices has "
4166                     "been removed by the administrator.\n\tSufficient "
4167                     "replicas exist for the pool to continue functioning in "
4168                     "a\n\tdegraded state.\n"));
4169                 (void) printf(gettext("action: Online the device using "
4170                     "'zpool online' or replace the device with\n\t'zpool "
4171                     "replace'.\n"));
4172                 break;
4173
4174         case ZPOOL_STATUS_RESILVERING:
4175                 (void) printf(gettext("status: One or more devices is "
4176                     "currently being resilvered.  The pool will\n\tcontinue "
4177                     "to function, possibly in a degraded state.\n"));
4178                 (void) printf(gettext("action: Wait for the resilver to "
4179                     "complete.\n"));
4180                 break;
4181
4182         case ZPOOL_STATUS_CORRUPT_DATA:
4183                 (void) printf(gettext("status: One or more devices has "
4184                     "experienced an error resulting in data\n\tcorruption.  "
4185                     "Applications may be affected.\n"));
4186                 (void) printf(gettext("action: Restore the file in question "
4187                     "if possible.  Otherwise restore the\n\tentire pool from "
4188                     "backup.\n"));
4189                 break;
4190
4191         case ZPOOL_STATUS_CORRUPT_POOL:
4192                 (void) printf(gettext("status: The pool metadata is corrupted "
4193                     "and the pool cannot be opened.\n"));
4194                 zpool_explain_recover(zpool_get_handle(zhp),
4195                     zpool_get_name(zhp), reason, config);
4196                 break;
4197
4198         case ZPOOL_STATUS_VERSION_OLDER:
4199                 (void) printf(gettext("status: The pool is formatted using a "
4200                     "legacy on-disk format.  The pool can\n\tstill be used, "
4201                     "but some features are unavailable.\n"));
4202                 (void) printf(gettext("action: Upgrade the pool using 'zpool "
4203                     "upgrade'.  Once this is done, the\n\tpool will no longer "
4204                     "be accessible on software that does not support feature\n"
4205                     "\tflags.\n"));
4206                 break;
4207
4208         case ZPOOL_STATUS_VERSION_NEWER:
4209                 (void) printf(gettext("status: The pool has been upgraded to a "
4210                     "newer, incompatible on-disk version.\n\tThe pool cannot "
4211                     "be accessed on this system.\n"));
4212                 (void) printf(gettext("action: Access the pool from a system "
4213                     "running more recent software, or\n\trestore the pool from "
4214                     "backup.\n"));
4215                 break;
4216
4217         case ZPOOL_STATUS_FEAT_DISABLED:
4218                 (void) printf(gettext("status: Some supported features are not "
4219                     "enabled on the pool. The pool can\n\tstill be used, but "
4220                     "some features are unavailable.\n"));
4221                 (void) printf(gettext("action: Enable all features using "
4222                     "'zpool upgrade'. Once this is done,\n\tthe pool may no "
4223                     "longer be accessible by software that does not support\n\t"
4224                     "the features. See zpool-features(7) for details.\n"));
4225                 break;
4226
4227         case ZPOOL_STATUS_UNSUP_FEAT_READ:
4228                 (void) printf(gettext("status: The pool cannot be accessed on "
4229                     "this system because it uses the\n\tfollowing feature(s) "
4230                     "not supported on this system:\n"));
4231                 zpool_print_unsup_feat(config);
4232                 (void) printf("\n");
4233                 (void) printf(gettext("action: Access the pool from a system "
4234                     "that supports the required feature(s),\n\tor restore the "
4235                     "pool from backup.\n"));
4236                 break;
4237
4238         case ZPOOL_STATUS_UNSUP_FEAT_WRITE:
4239                 (void) printf(gettext("status: The pool can only be accessed "
4240                     "in read-only mode on this system. It\n\tcannot be "
4241                     "accessed in read-write mode because it uses the "
4242                     "following\n\tfeature(s) not supported on this system:\n"));
4243                 zpool_print_unsup_feat(config);
4244                 (void) printf("\n");
4245                 (void) printf(gettext("action: The pool cannot be accessed in "
4246                     "read-write mode. Import the pool with\n"
4247                     "\t\"-o readonly=on\", access the pool from a system that "
4248                     "supports the\n\trequired feature(s), or restore the "
4249                     "pool from backup.\n"));
4250                 break;
4251
4252         case ZPOOL_STATUS_FAULTED_DEV_R:
4253                 (void) printf(gettext("status: One or more devices are "
4254                     "faulted in response to persistent errors.\n\tSufficient "
4255                     "replicas exist for the pool to continue functioning "
4256                     "in a\n\tdegraded state.\n"));
4257                 (void) printf(gettext("action: Replace the faulted device, "
4258                     "or use 'zpool clear' to mark the device\n\trepaired.\n"));
4259                 break;
4260
4261         case ZPOOL_STATUS_FAULTED_DEV_NR:
4262                 (void) printf(gettext("status: One or more devices are "
4263                     "faulted in response to persistent errors.  There are "
4264                     "insufficient replicas for the pool to\n\tcontinue "
4265                     "functioning.\n"));
4266                 (void) printf(gettext("action: Destroy and re-create the pool "
4267                     "from a backup source.  Manually marking the device\n"
4268                     "\trepaired using 'zpool clear' may allow some data "
4269                     "to be recovered.\n"));
4270                 break;
4271
4272         case ZPOOL_STATUS_IO_FAILURE_WAIT:
4273         case ZPOOL_STATUS_IO_FAILURE_CONTINUE:
4274                 (void) printf(gettext("status: One or more devices are "
4275                     "faulted in response to IO failures.\n"));
4276                 (void) printf(gettext("action: Make sure the affected devices "
4277                     "are connected, then run 'zpool clear'.\n"));
4278                 break;
4279
4280         case ZPOOL_STATUS_BAD_LOG:
4281                 (void) printf(gettext("status: An intent log record "
4282                     "could not be read.\n"
4283                     "\tWaiting for adminstrator intervention to fix the "
4284                     "faulted pool.\n"));
4285                 (void) printf(gettext("action: Either restore the affected "
4286                     "device(s) and run 'zpool online',\n"
4287                     "\tor ignore the intent log records by running "
4288                     "'zpool clear'.\n"));
4289                 break;
4290
4291         case ZPOOL_STATUS_NON_NATIVE_ASHIFT:
4292                 (void) printf(gettext("status: One or more devices are "
4293                     "configured to use a non-native block size.\n"
4294                     "\tExpect reduced performance.\n"));
4295                 (void) printf(gettext("action: Replace affected devices with "
4296                     "devices that support the\n\tconfigured block size, or "
4297                     "migrate data to a properly configured\n\tpool.\n"));
4298                 break;
4299
4300         default:
4301                 /*
4302                  * The remaining errors can't actually be generated, yet.
4303                  */
4304                 assert(reason == ZPOOL_STATUS_OK);
4305         }
4306
4307         if (msgid != NULL)
4308                 (void) printf(gettext("   see: http://illumos.org/msg/%s\n"),
4309                     msgid);
4310
4311         if (config != NULL) {
4312                 int namewidth;
4313                 uint64_t nerr;
4314                 nvlist_t **spares, **l2cache;
4315                 uint_t nspares, nl2cache;
4316                 pool_scan_stat_t *ps = NULL;
4317
4318                 (void) nvlist_lookup_uint64_array(nvroot,
4319                     ZPOOL_CONFIG_SCAN_STATS, (uint64_t **)&ps, &c);
4320                 print_scan_status(ps);
4321
4322                 namewidth = max_width(zhp, nvroot, 0, 0);
4323                 if (namewidth < 10)
4324                         namewidth = 10;
4325
4326                 (void) printf(gettext("config:\n\n"));
4327                 (void) printf(gettext("\t%-*s  %-8s %5s %5s %5s\n"), namewidth,
4328                     "NAME", "STATE", "READ", "WRITE", "CKSUM");
4329                 print_status_config(zhp, zpool_get_name(zhp), nvroot,
4330                     namewidth, 0, B_FALSE);
4331
4332                 if (num_logs(nvroot) > 0)
4333                         print_logs(zhp, nvroot, namewidth, B_TRUE);
4334                 if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_L2CACHE,
4335                     &l2cache, &nl2cache) == 0)
4336                         print_l2cache(zhp, l2cache, nl2cache, namewidth);
4337
4338                 if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES,
4339                     &spares, &nspares) == 0)
4340                         print_spares(zhp, spares, nspares, namewidth);
4341
4342                 if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_ERRCOUNT,
4343                     &nerr) == 0) {
4344                         nvlist_t *nverrlist = NULL;
4345
4346                         /*
4347                          * If the approximate error count is small, get a
4348                          * precise count by fetching the entire log and
4349                          * uniquifying the results.
4350                          */
4351                         if (nerr > 0 && nerr < 100 && !cbp->cb_verbose &&
4352                             zpool_get_errlog(zhp, &nverrlist) == 0) {
4353                                 nvpair_t *elem;
4354
4355                                 elem = NULL;
4356                                 nerr = 0;
4357                                 while ((elem = nvlist_next_nvpair(nverrlist,
4358                                     elem)) != NULL) {
4359                                         nerr++;
4360                                 }
4361                         }
4362                         nvlist_free(nverrlist);
4363
4364                         (void) printf("\n");
4365
4366                         if (nerr == 0)
4367                                 (void) printf(gettext("errors: No known data "
4368                                     "errors\n"));
4369                         else if (!cbp->cb_verbose)
4370                                 (void) printf(gettext("errors: %llu data "
4371                                     "errors, use '-v' for a list\n"),
4372                                     (u_longlong_t)nerr);
4373                         else
4374                                 print_error_log(zhp);
4375                 }
4376
4377                 if (cbp->cb_dedup_stats)
4378                         print_dedup_stats(config);
4379         } else {
4380                 (void) printf(gettext("config: The configuration cannot be "
4381                     "determined.\n"));
4382         }
4383
4384         return (0);
4385 }
4386
4387 /*
4388  * zpool status [-vx] [-T d|u] [pool] ... [interval [count]]
4389  *
4390  *      -v      Display complete error logs
4391  *      -x      Display only pools with potential problems
4392  *      -D      Display dedup status (undocumented)
4393  *      -T      Display a timestamp in date(1) or Unix format
4394  *
4395  * Describes the health status of all pools or some subset.
4396  */
4397 int
4398 zpool_do_status(int argc, char **argv)
4399 {
4400         int c;
4401         int ret;
4402         unsigned long interval = 0, count = 0;
4403         status_cbdata_t cb = { 0 };
4404
4405         /* check options */
4406         while ((c = getopt(argc, argv, "vxDT:")) != -1) {
4407                 switch (c) {
4408                 case 'v':
4409                         cb.cb_verbose = B_TRUE;
4410                         break;
4411                 case 'x':
4412                         cb.cb_explain = B_TRUE;
4413                         break;
4414                 case 'D':
4415                         cb.cb_dedup_stats = B_TRUE;
4416                         break;
4417                 case 'T':
4418                         get_timestamp_arg(*optarg);
4419                         break;
4420                 case '?':
4421                         (void) fprintf(stderr, gettext("invalid option '%c'\n"),
4422                             optopt);
4423                         usage(B_FALSE);
4424                 }
4425         }
4426
4427         argc -= optind;
4428         argv += optind;
4429
4430         get_interval_count(&argc, argv, &interval, &count);
4431
4432         if (argc == 0)
4433                 cb.cb_allpools = B_TRUE;
4434
4435         cb.cb_first = B_TRUE;
4436
4437         for (;;) {
4438                 if (timestamp_fmt != NODATE)
4439                         print_timestamp(timestamp_fmt);
4440
4441                 ret = for_each_pool(argc, argv, B_TRUE, NULL,
4442                     status_callback, &cb);
4443
4444                 if (argc == 0 && cb.cb_count == 0)
4445                         (void) printf(gettext("no pools available\n"));
4446                 else if (cb.cb_explain && cb.cb_first && cb.cb_allpools)
4447                         (void) printf(gettext("all pools are healthy\n"));
4448
4449                 if (ret != 0)
4450                         return (ret);
4451
4452                 if (interval == 0)
4453                         break;
4454
4455                 if (count != 0 && --count == 0)
4456                         break;
4457
4458                 (void) sleep(interval);
4459         }
4460
4461         return (0);
4462 }
4463
4464 typedef struct upgrade_cbdata {
4465         int     cb_first;
4466         char    cb_poolname[ZPOOL_MAXNAMELEN];
4467         int     cb_argc;
4468         uint64_t cb_version;
4469         char    **cb_argv;
4470 } upgrade_cbdata_t;
4471
4472 #ifdef __FreeBSD__
4473 static int
4474 is_root_pool(zpool_handle_t *zhp)
4475 {
4476         static struct statfs sfs;
4477         static char *poolname = NULL;
4478         static boolean_t stated = B_FALSE;
4479         char *slash;
4480
4481         if (!stated) {
4482                 stated = B_TRUE;
4483                 if (statfs("/", &sfs) == -1) {
4484                         (void) fprintf(stderr,
4485                             "Unable to stat root file system: %s.\n",
4486                             strerror(errno));
4487                         return (0);
4488                 }
4489                 if (strcmp(sfs.f_fstypename, "zfs") != 0)
4490                         return (0);
4491                 poolname = sfs.f_mntfromname;
4492                 if ((slash = strchr(poolname, '/')) != NULL)
4493                         *slash = '\0';
4494         }
4495         return (poolname != NULL && strcmp(poolname, zpool_get_name(zhp)) == 0);
4496 }
4497
4498 static void
4499 root_pool_upgrade_check(zpool_handle_t *zhp, char *poolname, int size) {
4500
4501         if (poolname[0] == '\0' && is_root_pool(zhp))
4502                 (void) strlcpy(poolname, zpool_get_name(zhp), size);
4503 }
4504 #endif  /* FreeBSD */
4505
4506 static int
4507 upgrade_version(zpool_handle_t *zhp, uint64_t version)
4508 {
4509         int ret;
4510         nvlist_t *config;
4511         uint64_t oldversion;
4512
4513         config = zpool_get_config(zhp, NULL);
4514         verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION,
4515             &oldversion) == 0);
4516
4517         assert(SPA_VERSION_IS_SUPPORTED(oldversion));
4518         assert(oldversion < version);
4519
4520         ret = zpool_upgrade(zhp, version);
4521         if (ret != 0)
4522                 return (ret);
4523
4524         if (version >= SPA_VERSION_FEATURES) {
4525                 (void) printf(gettext("Successfully upgraded "
4526                     "'%s' from version %llu to feature flags.\n"),
4527                     zpool_get_name(zhp), oldversion);
4528         } else {
4529                 (void) printf(gettext("Successfully upgraded "
4530                     "'%s' from version %llu to version %llu.\n"),
4531                     zpool_get_name(zhp), oldversion, version);
4532         }
4533
4534         return (0);
4535 }
4536
4537 static int
4538 upgrade_enable_all(zpool_handle_t *zhp, int *countp)
4539 {
4540         int i, ret, count;
4541         boolean_t firstff = B_TRUE;
4542         nvlist_t *enabled = zpool_get_features(zhp);
4543
4544         count = 0;
4545         for (i = 0; i < SPA_FEATURES; i++) {
4546                 const char *fname = spa_feature_table[i].fi_uname;
4547                 const char *fguid = spa_feature_table[i].fi_guid;
4548                 if (!nvlist_exists(enabled, fguid)) {
4549                         char *propname;
4550                         verify(-1 != asprintf(&propname, "feature@%s", fname));
4551                         ret = zpool_set_prop(zhp, propname,
4552                             ZFS_FEATURE_ENABLED);
4553                         if (ret != 0) {
4554                                 free(propname);
4555                                 return (ret);
4556                         }
4557                         count++;
4558
4559                         if (firstff) {
4560                                 (void) printf(gettext("Enabled the "
4561                                     "following features on '%s':\n"),
4562                                     zpool_get_name(zhp));
4563                                 firstff = B_FALSE;
4564                         }
4565                         (void) printf(gettext("  %s\n"), fname);
4566                         free(propname);
4567                 }
4568         }
4569
4570         if (countp != NULL)
4571                 *countp = count;
4572         return (0);
4573 }
4574
4575 static int
4576 upgrade_cb(zpool_handle_t *zhp, void *arg)
4577 {
4578         upgrade_cbdata_t *cbp = arg;
4579         nvlist_t *config;
4580         uint64_t version;
4581         boolean_t printnl = B_FALSE;
4582         int ret;
4583
4584         config = zpool_get_config(zhp, NULL);
4585         verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION,
4586             &version) == 0);
4587
4588         assert(SPA_VERSION_IS_SUPPORTED(version));
4589
4590         if (version < cbp->cb_version) {
4591                 cbp->cb_first = B_FALSE;
4592                 ret = upgrade_version(zhp, cbp->cb_version);
4593                 if (ret != 0)
4594                         return (ret);
4595 #ifdef __FreeBSD__
4596                 root_pool_upgrade_check(zhp, cbp->cb_poolname,
4597                     sizeof(cbp->cb_poolname));
4598 #endif  /* ___FreeBSD__ */
4599                 printnl = B_TRUE;
4600
4601 #ifdef illumos
4602                 /*
4603                  * If they did "zpool upgrade -a", then we could
4604                  * be doing ioctls to different pools.  We need
4605                  * to log this history once to each pool, and bypass
4606                  * the normal history logging that happens in main().
4607                  */
4608                 (void) zpool_log_history(g_zfs, history_str);
4609                 log_history = B_FALSE;
4610 #endif
4611         }
4612
4613         if (cbp->cb_version >= SPA_VERSION_FEATURES) {
4614                 int count;
4615                 ret = upgrade_enable_all(zhp, &count);
4616                 if (ret != 0)
4617                         return (ret);
4618
4619                 if (count > 0) {
4620                         cbp->cb_first = B_FALSE;
4621                         printnl = B_TRUE;
4622                         /*
4623                          * If they did "zpool upgrade -a", then we could
4624                          * be doing ioctls to different pools.  We need
4625                          * to log this history once to each pool, and bypass
4626                          * the normal history logging that happens in main().
4627                          */
4628                         (void) zpool_log_history(g_zfs, history_str);
4629                         log_history = B_FALSE;
4630                 }
4631         }
4632
4633         if (printnl) {
4634                 (void) printf(gettext("\n"));
4635         }
4636
4637         return (0);
4638 }
4639
4640 static int
4641 upgrade_list_older_cb(zpool_handle_t *zhp, void *arg)
4642 {
4643         upgrade_cbdata_t *cbp = arg;
4644         nvlist_t *config;
4645         uint64_t version;
4646
4647         config = zpool_get_config(zhp, NULL);
4648         verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION,
4649             &version) == 0);
4650
4651         assert(SPA_VERSION_IS_SUPPORTED(version));
4652
4653         if (version < SPA_VERSION_FEATURES) {
4654                 if (cbp->cb_first) {
4655                         (void) printf(gettext("The following pools are "
4656                             "formatted with legacy version numbers and can\n"
4657                             "be upgraded to use feature flags.  After "
4658                             "being upgraded, these pools\nwill no "
4659                             "longer be accessible by software that does not "
4660                             "support feature\nflags.\n\n"));
4661                         (void) printf(gettext("VER  POOL\n"));
4662                         (void) printf(gettext("---  ------------\n"));
4663                         cbp->cb_first = B_FALSE;
4664                 }
4665
4666                 (void) printf("%2llu   %s\n", (u_longlong_t)version,
4667                     zpool_get_name(zhp));
4668         }
4669
4670         return (0);
4671 }
4672
4673 static int
4674 upgrade_list_disabled_cb(zpool_handle_t *zhp, void *arg)
4675 {
4676         upgrade_cbdata_t *cbp = arg;
4677         nvlist_t *config;
4678         uint64_t version;
4679
4680         config = zpool_get_config(zhp, NULL);
4681         verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION,
4682             &version) == 0);
4683
4684         if (version >= SPA_VERSION_FEATURES) {
4685                 int i;
4686                 boolean_t poolfirst = B_TRUE;
4687                 nvlist_t *enabled = zpool_get_features(zhp);
4688
4689                 for (i = 0; i < SPA_FEATURES; i++) {
4690                         const char *fguid = spa_feature_table[i].fi_guid;
4691                         const char *fname = spa_feature_table[i].fi_uname;
4692                         if (!nvlist_exists(enabled, fguid)) {
4693                                 if (cbp->cb_first) {
4694                                         (void) printf(gettext("\nSome "
4695                                             "supported features are not "
4696                                             "enabled on the following pools. "
4697                                             "Once a\nfeature is enabled the "
4698                                             "pool may become incompatible with "
4699                                             "software\nthat does not support "
4700                                             "the feature. See "
4701                                             "zpool-features(7) for "
4702                                             "details.\n\n"));
4703                                         (void) printf(gettext("POOL  "
4704                                             "FEATURE\n"));
4705                                         (void) printf(gettext("------"
4706                                             "---------\n"));
4707                                         cbp->cb_first = B_FALSE;
4708                                 }
4709
4710                                 if (poolfirst) {
4711                                         (void) printf(gettext("%s\n"),
4712                                             zpool_get_name(zhp));
4713                                         poolfirst = B_FALSE;
4714                                 }
4715
4716                                 (void) printf(gettext("      %s\n"), fname);
4717                         }
4718                 }
4719         }
4720
4721         return (0);
4722 }
4723
4724 /* ARGSUSED */
4725 static int
4726 upgrade_one(zpool_handle_t *zhp, void *data)
4727 {
4728         boolean_t printnl = B_FALSE;
4729         upgrade_cbdata_t *cbp = data;
4730         uint64_t cur_version;
4731         int ret;
4732
4733         if (strcmp("log", zpool_get_name(zhp)) == 0) {
4734                 (void) printf(gettext("'log' is now a reserved word\n"
4735                     "Pool 'log' must be renamed using export and import"
4736                     " to upgrade.\n"));
4737                 return (1);
4738         }
4739
4740         cur_version = zpool_get_prop_int(zhp, ZPOOL_PROP_VERSION, NULL);
4741         if (cur_version > cbp->cb_version) {
4742                 (void) printf(gettext("Pool '%s' is already formatted "
4743                     "using more current version '%llu'.\n\n"),
4744                     zpool_get_name(zhp), cur_version);
4745                 return (0);
4746         }
4747
4748         if (cbp->cb_version != SPA_VERSION && cur_version == cbp->cb_version) {
4749                 (void) printf(gettext("Pool '%s' is already formatted "
4750                     "using version %llu.\n\n"), zpool_get_name(zhp),
4751                     cbp->cb_version);
4752                 return (0);
4753         }
4754
4755         if (cur_version != cbp->cb_version) {
4756                 printnl = B_TRUE;
4757                 ret = upgrade_version(zhp, cbp->cb_version);
4758                 if (ret != 0)
4759                         return (ret);
4760 #ifdef __FreeBSD__
4761                 root_pool_upgrade_check(zhp, cbp->cb_poolname,
4762                     sizeof(cbp->cb_poolname));
4763 #endif  /* ___FreeBSD__ */
4764         }
4765
4766         if (cbp->cb_version >= SPA_VERSION_FEATURES) {
4767                 int count = 0;
4768                 ret = upgrade_enable_all(zhp, &count);
4769                 if (ret != 0)
4770                         return (ret);
4771
4772                 if (count != 0) {
4773                         printnl = B_TRUE;
4774 #ifdef __FreeBSD__
4775                         root_pool_upgrade_check(zhp, cbp->cb_poolname,
4776                             sizeof(cbp->cb_poolname));
4777 #endif  /* __FreeBSD __*/
4778                 } else if (cur_version == SPA_VERSION) {
4779                         (void) printf(gettext("Pool '%s' already has all "
4780                             "supported features enabled.\n"),
4781                             zpool_get_name(zhp));
4782                 }
4783         }
4784
4785         if (printnl) {
4786                 (void) printf(gettext("\n"));
4787         }
4788
4789         return (0);
4790 }
4791
4792 /*
4793  * zpool upgrade
4794  * zpool upgrade -v
4795  * zpool upgrade [-V version] <-a | pool ...>
4796  *
4797  * With no arguments, display downrev'd ZFS pool available for upgrade.
4798  * Individual pools can be upgraded by specifying the pool, and '-a' will
4799  * upgrade all pools.
4800  */
4801 int
4802 zpool_do_upgrade(int argc, char **argv)
4803 {
4804         int c;
4805         upgrade_cbdata_t cb = { 0 };
4806         int ret = 0;
4807         boolean_t showversions = B_FALSE;
4808         boolean_t upgradeall = B_FALSE;
4809         char *end;
4810
4811
4812         /* check options */
4813         while ((c = getopt(argc, argv, ":avV:")) != -1) {
4814                 switch (c) {
4815                 case 'a':
4816                         upgradeall = B_TRUE;
4817                         break;
4818                 case 'v':
4819                         showversions = B_TRUE;
4820                         break;
4821                 case 'V':
4822                         cb.cb_version = strtoll(optarg, &end, 10);
4823                         if (*end != '\0' ||
4824                             !SPA_VERSION_IS_SUPPORTED(cb.cb_version)) {
4825                                 (void) fprintf(stderr,
4826                                     gettext("invalid version '%s'\n"), optarg);
4827                                 usage(B_FALSE);
4828                         }
4829                         break;
4830                 case ':':
4831                         (void) fprintf(stderr, gettext("missing argument for "
4832                             "'%c' option\n"), optopt);
4833                         usage(B_FALSE);
4834                         break;
4835                 case '?':
4836                         (void) fprintf(stderr, gettext("invalid option '%c'\n"),
4837                             optopt);
4838                         usage(B_FALSE);
4839                 }
4840         }
4841
4842         cb.cb_argc = argc;
4843         cb.cb_argv = argv;
4844         argc -= optind;
4845         argv += optind;
4846
4847         if (cb.cb_version == 0) {
4848                 cb.cb_version = SPA_VERSION;
4849         } else if (!upgradeall && argc == 0) {
4850                 (void) fprintf(stderr, gettext("-V option is "
4851                     "incompatible with other arguments\n"));
4852                 usage(B_FALSE);
4853         }
4854
4855         if (showversions) {
4856                 if (upgradeall || argc != 0) {
4857                         (void) fprintf(stderr, gettext("-v option is "
4858                             "incompatible with other arguments\n"));
4859                         usage(B_FALSE);
4860                 }
4861         } else if (upgradeall) {
4862                 if (argc != 0) {
4863                         (void) fprintf(stderr, gettext("-a option should not "
4864                             "be used along with a pool name\n"));
4865                         usage(B_FALSE);
4866                 }
4867         }
4868
4869         (void) printf(gettext("This system supports ZFS pool feature "
4870             "flags.\n\n"));
4871         if (showversions) {
4872                 int i;
4873
4874                 (void) printf(gettext("The following features are "
4875                     "supported:\n\n"));
4876                 (void) printf(gettext("FEAT DESCRIPTION\n"));
4877                 (void) printf("----------------------------------------------"
4878                     "---------------\n");
4879                 for (i = 0; i < SPA_FEATURES; i++) {
4880                         zfeature_info_t *fi = &spa_feature_table[i];
4881                         const char *ro = fi->fi_can_readonly ?
4882                             " (read-only compatible)" : "";
4883
4884                         (void) printf("%-37s%s\n", fi->fi_uname, ro);
4885                         (void) printf("     %s\n", fi->fi_desc);
4886                 }
4887                 (void) printf("\n");
4888
4889                 (void) printf(gettext("The following legacy versions are also "
4890                     "supported:\n\n"));
4891                 (void) printf(gettext("VER  DESCRIPTION\n"));
4892                 (void) printf("---  -----------------------------------------"
4893                     "---------------\n");
4894                 (void) printf(gettext(" 1   Initial ZFS version\n"));
4895                 (void) printf(gettext(" 2   Ditto blocks "
4896                     "(replicated metadata)\n"));
4897                 (void) printf(gettext(" 3   Hot spares and double parity "
4898                     "RAID-Z\n"));
4899                 (void) printf(gettext(" 4   zpool history\n"));
4900                 (void) printf(gettext(" 5   Compression using the gzip "
4901                     "algorithm\n"));
4902                 (void) printf(gettext(" 6   bootfs pool property\n"));
4903                 (void) printf(gettext(" 7   Separate intent log devices\n"));
4904                 (void) printf(gettext(" 8   Delegated administration\n"));
4905                 (void) printf(gettext(" 9   refquota and refreservation "
4906                     "properties\n"));
4907                 (void) printf(gettext(" 10  Cache devices\n"));
4908                 (void) printf(gettext(" 11  Improved scrub performance\n"));
4909                 (void) printf(gettext(" 12  Snapshot properties\n"));
4910                 (void) printf(gettext(" 13  snapused property\n"));
4911                 (void) printf(gettext(" 14  passthrough-x aclinherit\n"));
4912                 (void) printf(gettext(" 15  user/group space accounting\n"));
4913                 (void) printf(gettext(" 16  stmf property support\n"));
4914                 (void) printf(gettext(" 17  Triple-parity RAID-Z\n"));
4915                 (void) printf(gettext(" 18  Snapshot user holds\n"));
4916                 (void) printf(gettext(" 19  Log device removal\n"));
4917                 (void) printf(gettext(" 20  Compression using zle "
4918                     "(zero-length encoding)\n"));
4919                 (void) printf(gettext(" 21  Deduplication\n"));
4920                 (void) printf(gettext(" 22  Received properties\n"));
4921                 (void) printf(gettext(" 23  Slim ZIL\n"));
4922                 (void) printf(gettext(" 24  System attributes\n"));
4923                 (void) printf(gettext(" 25  Improved scrub stats\n"));
4924                 (void) printf(gettext(" 26  Improved snapshot deletion "
4925                     "performance\n"));
4926                 (void) printf(gettext(" 27  Improved snapshot creation "
4927                     "performance\n"));
4928                 (void) printf(gettext(" 28  Multiple vdev replacements\n"));
4929                 (void) printf(gettext("\nFor more information on a particular "
4930                     "version, including supported releases,\n"));
4931                 (void) printf(gettext("see the ZFS Administration Guide.\n\n"));
4932         } else if (argc == 0 && upgradeall) {
4933                 cb.cb_first = B_TRUE;
4934                 ret = zpool_iter(g_zfs, upgrade_cb, &cb);
4935                 if (ret == 0 && cb.cb_first) {
4936                         if (cb.cb_version == SPA_VERSION) {
4937                                 (void) printf(gettext("All pools are already "
4938                                     "formatted using feature flags.\n\n"));
4939                                 (void) printf(gettext("Every feature flags "
4940                                     "pool already has all supported features "
4941                                     "enabled.\n"));
4942                         } else {
4943                                 (void) printf(gettext("All pools are already "
4944                                     "formatted with version %llu or higher.\n"),
4945                                     cb.cb_version);
4946                         }
4947                 }
4948         } else if (argc == 0) {
4949                 cb.cb_first = B_TRUE;
4950                 ret = zpool_iter(g_zfs, upgrade_list_older_cb, &cb);
4951                 assert(ret == 0);
4952
4953                 if (cb.cb_first) {
4954                         (void) printf(gettext("All pools are formatted "
4955                             "using feature flags.\n\n"));
4956                 } else {
4957                         (void) printf(gettext("\nUse 'zpool upgrade -v' "
4958                             "for a list of available legacy versions.\n"));
4959                 }
4960
4961                 cb.cb_first = B_TRUE;
4962                 ret = zpool_iter(g_zfs, upgrade_list_disabled_cb, &cb);
4963                 assert(ret == 0);
4964
4965                 if (cb.cb_first) {
4966                         (void) printf(gettext("Every feature flags pool has "
4967                             "all supported features enabled.\n"));
4968                 } else {
4969                         (void) printf(gettext("\n"));
4970                 }
4971         } else {
4972                 ret = for_each_pool(argc, argv, B_FALSE, NULL,
4973                     upgrade_one, &cb);
4974         }
4975
4976         if (cb.cb_poolname[0] != '\0') {
4977                 (void) printf(
4978                     "If you boot from pool '%s', don't forget to update boot code.\n"
4979                     "Assuming you use GPT partitioning and da0 is your boot disk\n"
4980                     "the following command will do it:\n"
4981                     "\n"
4982                     "\tgpart bootcode -b /boot/pmbr -p /boot/gptzfsboot -i 1 da0\n\n",
4983                     cb.cb_poolname);
4984         }
4985
4986         return (ret);
4987 }
4988
4989 typedef struct hist_cbdata {
4990         boolean_t first;
4991         boolean_t longfmt;
4992         boolean_t internal;
4993 } hist_cbdata_t;
4994
4995 /*
4996  * Print out the command history for a specific pool.
4997  */
4998 static int
4999 get_history_one(zpool_handle_t *zhp, void *data)
5000 {
5001         nvlist_t *nvhis;
5002         nvlist_t **records;
5003         uint_t numrecords;
5004         int ret, i;
5005         hist_cbdata_t *cb = (hist_cbdata_t *)data;
5006
5007         cb->first = B_FALSE;
5008
5009         (void) printf(gettext("History for '%s':\n"), zpool_get_name(zhp));
5010
5011         if ((ret = zpool_get_history(zhp, &nvhis)) != 0)
5012                 return (ret);
5013
5014         verify(nvlist_lookup_nvlist_array(nvhis, ZPOOL_HIST_RECORD,
5015             &records, &numrecords) == 0);
5016         for (i = 0; i < numrecords; i++) {
5017                 nvlist_t *rec = records[i];
5018                 char tbuf[30] = "";
5019
5020                 if (nvlist_exists(rec, ZPOOL_HIST_TIME)) {
5021                         time_t tsec;
5022                         struct tm t;
5023
5024                         tsec = fnvlist_lookup_uint64(records[i],
5025                             ZPOOL_HIST_TIME);
5026                         (void) localtime_r(&tsec, &t);
5027                         (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t);
5028                 }
5029
5030                 if (nvlist_exists(rec, ZPOOL_HIST_CMD)) {
5031                         (void) printf("%s %s", tbuf,
5032                             fnvlist_lookup_string(rec, ZPOOL_HIST_CMD));
5033                 } else if (nvlist_exists(rec, ZPOOL_HIST_INT_EVENT)) {
5034                         int ievent =
5035                             fnvlist_lookup_uint64(rec, ZPOOL_HIST_INT_EVENT);
5036                         if (!cb->internal)
5037                                 continue;
5038                         if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS) {
5039                                 (void) printf("%s unrecognized record:\n",
5040                                     tbuf);
5041                                 dump_nvlist(rec, 4);
5042                                 continue;
5043                         }
5044                         (void) printf("%s [internal %s txg:%lld] %s", tbuf,
5045                             zfs_history_event_names[ievent],
5046                             fnvlist_lookup_uint64(rec, ZPOOL_HIST_TXG),
5047                             fnvlist_lookup_string(rec, ZPOOL_HIST_INT_STR));
5048                 } else if (nvlist_exists(rec, ZPOOL_HIST_INT_NAME)) {
5049                         if (!cb->internal)
5050                                 continue;
5051                         (void) printf("%s [txg:%lld] %s", tbuf,
5052                             fnvlist_lookup_uint64(rec, ZPOOL_HIST_TXG),
5053                             fnvlist_lookup_string(rec, ZPOOL_HIST_INT_NAME));
5054                         if (nvlist_exists(rec, ZPOOL_HIST_DSNAME)) {
5055                                 (void) printf(" %s (%llu)",
5056                                     fnvlist_lookup_string(rec,
5057                                     ZPOOL_HIST_DSNAME),
5058                                     fnvlist_lookup_uint64(rec,
5059                                     ZPOOL_HIST_DSID));
5060                         }
5061                         (void) printf(" %s", fnvlist_lookup_string(rec,
5062                             ZPOOL_HIST_INT_STR));
5063                 } else if (nvlist_exists(rec, ZPOOL_HIST_IOCTL)) {
5064                         if (!cb->internal)
5065                                 continue;
5066                         (void) printf("%s ioctl %s\n", tbuf,
5067                             fnvlist_lookup_string(rec, ZPOOL_HIST_IOCTL));
5068                         if (nvlist_exists(rec, ZPOOL_HIST_INPUT_NVL)) {
5069                                 (void) printf("    input:\n");
5070                                 dump_nvlist(fnvlist_lookup_nvlist(rec,
5071                                     ZPOOL_HIST_INPUT_NVL), 8);
5072                         }
5073                         if (nvlist_exists(rec, ZPOOL_HIST_OUTPUT_NVL)) {
5074                                 (void) printf("    output:\n");
5075                                 dump_nvlist(fnvlist_lookup_nvlist(rec,
5076                                     ZPOOL_HIST_OUTPUT_NVL), 8);
5077                         }
5078                 } else {
5079                         if (!cb->internal)
5080                                 continue;
5081                         (void) printf("%s unrecognized record:\n", tbuf);
5082                         dump_nvlist(rec, 4);
5083                 }
5084
5085                 if (!cb->longfmt) {
5086                         (void) printf("\n");
5087                         continue;
5088                 }
5089                 (void) printf(" [");
5090                 if (nvlist_exists(rec, ZPOOL_HIST_WHO)) {
5091                         uid_t who = fnvlist_lookup_uint64(rec, ZPOOL_HIST_WHO);
5092                         struct passwd *pwd = getpwuid(who);
5093                         (void) printf("user %d ", (int)who);
5094                         if (pwd != NULL)
5095                                 (void) printf("(%s) ", pwd->pw_name);
5096                 }
5097                 if (nvlist_exists(rec, ZPOOL_HIST_HOST)) {
5098                         (void) printf("on %s",
5099                             fnvlist_lookup_string(rec, ZPOOL_HIST_HOST));
5100                 }
5101                 if (nvlist_exists(rec, ZPOOL_HIST_ZONE)) {
5102                         (void) printf(":%s",
5103                             fnvlist_lookup_string(rec, ZPOOL_HIST_ZONE));
5104                 }
5105                 (void) printf("]");
5106                 (void) printf("\n");
5107         }
5108         (void) printf("\n");
5109         nvlist_free(nvhis);
5110
5111         return (ret);
5112 }
5113
5114 /*
5115  * zpool history <pool>
5116  *
5117  * Displays the history of commands that modified pools.
5118  */
5119 int
5120 zpool_do_history(int argc, char **argv)
5121 {
5122         hist_cbdata_t cbdata = { 0 };
5123         int ret;
5124         int c;
5125
5126         cbdata.first = B_TRUE;
5127         /* check options */
5128         while ((c = getopt(argc, argv, "li")) != -1) {
5129                 switch (c) {
5130                 case 'l':
5131                         cbdata.longfmt = B_TRUE;
5132                         break;
5133                 case 'i':
5134                         cbdata.internal = B_TRUE;
5135                         break;
5136                 case '?':
5137                         (void) fprintf(stderr, gettext("invalid option '%c'\n"),
5138                             optopt);
5139                         usage(B_FALSE);
5140                 }
5141         }
5142         argc -= optind;
5143         argv += optind;
5144
5145         ret = for_each_pool(argc, argv, B_FALSE,  NULL, get_history_one,
5146             &cbdata);
5147
5148         if (argc == 0 && cbdata.first == B_TRUE) {
5149                 (void) printf(gettext("no pools available\n"));
5150                 return (0);
5151         }
5152
5153         return (ret);
5154 }
5155
5156 static int
5157 get_callback(zpool_handle_t *zhp, void *data)
5158 {
5159         zprop_get_cbdata_t *cbp = (zprop_get_cbdata_t *)data;
5160         char value[MAXNAMELEN];
5161         zprop_source_t srctype;
5162         zprop_list_t *pl;
5163
5164         for (pl = cbp->cb_proplist; pl != NULL; pl = pl->pl_next) {
5165
5166                 /*
5167                  * Skip the special fake placeholder. This will also skip
5168                  * over the name property when 'all' is specified.
5169                  */
5170                 if (pl->pl_prop == ZPOOL_PROP_NAME &&
5171                     pl == cbp->cb_proplist)
5172                         continue;
5173
5174                 if (pl->pl_prop == ZPROP_INVAL &&
5175                     (zpool_prop_feature(pl->pl_user_prop) ||
5176                     zpool_prop_unsupported(pl->pl_user_prop))) {
5177                         srctype = ZPROP_SRC_LOCAL;
5178
5179                         if (zpool_prop_get_feature(zhp, pl->pl_user_prop,
5180                             value, sizeof (value)) == 0) {
5181                                 zprop_print_one_property(zpool_get_name(zhp),
5182                                     cbp, pl->pl_user_prop, value, srctype,
5183                                     NULL, NULL);
5184                         }
5185                 } else {
5186                         if (zpool_get_prop(zhp, pl->pl_prop, value,
5187                             sizeof (value), &srctype) != 0)
5188                                 continue;
5189
5190                         zprop_print_one_property(zpool_get_name(zhp), cbp,
5191                             zpool_prop_to_name(pl->pl_prop), value, srctype,
5192                             NULL, NULL);
5193                 }
5194         }
5195         return (0);
5196 }
5197
5198 int
5199 zpool_do_get(int argc, char **argv)
5200 {
5201         zprop_get_cbdata_t cb = { 0 };
5202         zprop_list_t fake_name = { 0 };
5203         int ret;
5204
5205         if (argc < 2) {
5206                 (void) fprintf(stderr, gettext("missing property "
5207                     "argument\n"));
5208                 usage(B_FALSE);
5209         }
5210
5211         cb.cb_first = B_TRUE;
5212         cb.cb_sources = ZPROP_SRC_ALL;
5213         cb.cb_columns[0] = GET_COL_NAME;
5214         cb.cb_columns[1] = GET_COL_PROPERTY;
5215         cb.cb_columns[2] = GET_COL_VALUE;
5216         cb.cb_columns[3] = GET_COL_SOURCE;
5217         cb.cb_type = ZFS_TYPE_POOL;
5218
5219         if (zprop_get_list(g_zfs, argv[1], &cb.cb_proplist,
5220             ZFS_TYPE_POOL) != 0)
5221                 usage(B_FALSE);
5222
5223         if (cb.cb_proplist != NULL) {
5224                 fake_name.pl_prop = ZPOOL_PROP_NAME;
5225                 fake_name.pl_width = strlen(gettext("NAME"));
5226                 fake_name.pl_next = cb.cb_proplist;
5227                 cb.cb_proplist = &fake_name;
5228         }
5229
5230         ret = for_each_pool(argc - 2, argv + 2, B_TRUE, &cb.cb_proplist,
5231             get_callback, &cb);
5232
5233         if (cb.cb_proplist == &fake_name)
5234                 zprop_free_list(fake_name.pl_next);
5235         else
5236                 zprop_free_list(cb.cb_proplist);
5237
5238         return (ret);
5239 }
5240
5241 typedef struct set_cbdata {
5242         char *cb_propname;
5243         char *cb_value;
5244         boolean_t cb_any_successful;
5245 } set_cbdata_t;
5246
5247 int
5248 set_callback(zpool_handle_t *zhp, void *data)
5249 {
5250         int error;
5251         set_cbdata_t *cb = (set_cbdata_t *)data;
5252
5253         error = zpool_set_prop(zhp, cb->cb_propname, cb->cb_value);
5254
5255         if (!error)
5256                 cb->cb_any_successful = B_TRUE;
5257
5258         return (error);
5259 }
5260
5261 int
5262 zpool_do_set(int argc, char **argv)
5263 {
5264         set_cbdata_t cb = { 0 };
5265         int error;
5266
5267         if (argc > 1 && argv[1][0] == '-') {
5268                 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
5269                     argv[1][1]);
5270                 usage(B_FALSE);
5271         }
5272
5273         if (argc < 2) {
5274                 (void) fprintf(stderr, gettext("missing property=value "
5275                     "argument\n"));
5276                 usage(B_FALSE);
5277         }
5278
5279         if (argc < 3) {
5280                 (void) fprintf(stderr, gettext("missing pool name\n"));
5281                 usage(B_FALSE);
5282         }
5283
5284         if (argc > 3) {
5285                 (void) fprintf(stderr, gettext("too many pool names\n"));
5286                 usage(B_FALSE);
5287         }
5288
5289         cb.cb_propname = argv[1];
5290         cb.cb_value = strchr(cb.cb_propname, '=');
5291         if (cb.cb_value == NULL) {
5292                 (void) fprintf(stderr, gettext("missing value in "
5293                     "property=value argument\n"));
5294                 usage(B_FALSE);
5295         }
5296
5297         *(cb.cb_value) = '\0';
5298         cb.cb_value++;
5299
5300         error = for_each_pool(argc - 2, argv + 2, B_TRUE, NULL,
5301             set_callback, &cb);
5302
5303         return (error);
5304 }
5305
5306 static int
5307 find_command_idx(char *command, int *idx)
5308 {
5309         int i;
5310
5311         for (i = 0; i < NCOMMAND; i++) {
5312                 if (command_table[i].name == NULL)
5313                         continue;
5314
5315                 if (strcmp(command, command_table[i].name) == 0) {
5316                         *idx = i;
5317                         return (0);
5318                 }
5319         }
5320         return (1);
5321 }
5322
5323 int
5324 main(int argc, char **argv)
5325 {
5326         int ret;
5327         int i;
5328         char *cmdname;
5329
5330         (void) setlocale(LC_ALL, "");
5331         (void) textdomain(TEXT_DOMAIN);
5332
5333         if ((g_zfs = libzfs_init()) == NULL) {
5334                 (void) fprintf(stderr, gettext("internal error: failed to "
5335                     "initialize ZFS library\n"));
5336                 return (1);
5337         }
5338
5339         libzfs_print_on_error(g_zfs, B_TRUE);
5340
5341         opterr = 0;
5342
5343         /*
5344          * Make sure the user has specified some command.
5345          */
5346         if (argc < 2) {
5347                 (void) fprintf(stderr, gettext("missing command\n"));
5348                 usage(B_FALSE);
5349         }
5350
5351         cmdname = argv[1];
5352
5353         /*
5354          * Special case '-?'
5355          */
5356         if (strcmp(cmdname, "-?") == 0)
5357                 usage(B_TRUE);
5358
5359         zfs_save_arguments(argc, argv, history_str, sizeof (history_str));
5360
5361         /*
5362          * Run the appropriate command.
5363          */
5364         if (find_command_idx(cmdname, &i) == 0) {
5365                 current_command = &command_table[i];
5366                 ret = command_table[i].func(argc - 1, argv + 1);
5367         } else if (strchr(cmdname, '=')) {
5368                 verify(find_command_idx("set", &i) == 0);
5369                 current_command = &command_table[i];
5370                 ret = command_table[i].func(argc, argv);
5371         } else if (strcmp(cmdname, "freeze") == 0 && argc == 3) {
5372                 /*
5373                  * 'freeze' is a vile debugging abomination, so we treat
5374                  * it as such.
5375                  */
5376                 zfs_cmd_t zc = { 0 };
5377                 (void) strlcpy(zc.zc_name, argv[2], sizeof (zc.zc_name));
5378                 return (!!zfs_ioctl(g_zfs, ZFS_IOC_POOL_FREEZE, &zc));
5379         } else {
5380                 (void) fprintf(stderr, gettext("unrecognized "
5381                     "command '%s'\n"), cmdname);
5382                 usage(B_FALSE);
5383         }
5384
5385         if (ret == 0 && log_history)
5386                 (void) zpool_log_history(g_zfs, history_str);
5387
5388         libzfs_fini(g_zfs);
5389
5390         /*
5391          * The 'ZFS_ABORT' environment variable causes us to dump core on exit
5392          * for the purposes of running ::findleaks.
5393          */
5394         if (getenv("ZFS_ABORT") != NULL) {
5395                 (void) printf("dumping core by request\n");
5396                 abort();
5397         }
5398
5399         return (ret);
5400 }