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  */
  25
  26 #include <assert.h>
  27 #include <ctype.h>
  28 #include <dirent.h>
  29 #include <errno.h>
  30 #include <fcntl.h>
  31 #include <libgen.h>
  32 #include <libintl.h>
  33 #include <libuutil.h>
  34 #include <locale.h>
  35 #include <stdio.h>
  36 #include <stdlib.h>
  37 #include <string.h>
  38 #include <strings.h>
  39 #include <unistd.h>
  40 #include <priv.h>
  41 #include <pwd.h>
  42 #include <zone.h>
  43 #include <sys/fs/zfs.h>
  44 #include <sys/stat.h>
  45 #include <sys/fm/util.h>
  46 #include <sys/fm/protocol.h>
  47
  48 #include <libzfs.h>
  49
  50 #include "zpool_util.h"
  51 #include "zfs_comutil.h"
  52
  53 #include "statcommon.h"
  54
  55 static int zpool_do_create(int, char **);
  56 static int zpool_do_destroy(int, char **);
  57
  58 static int zpool_do_add(int, char **);
  59 static int zpool_do_remove(int, char **);
  60
  61 static int zpool_do_list(int, char **);
  62 static int zpool_do_iostat(int, char **);
  63 static int zpool_do_status(int, char **);
  64
  65 static int zpool_do_online(int, char **);
  66 static int zpool_do_offline(int, char **);
  67 static int zpool_do_clear(int, char **);
  68
  69 static int zpool_do_attach(int, char **);
  70 static int zpool_do_detach(int, char **);
  71 static int zpool_do_replace(int, char **);
  72 static int zpool_do_split(int, char **);
  73
  74 static int zpool_do_scrub(int, char **);
  75
  76 static int zpool_do_import(int, char **);
  77 static int zpool_do_export(int, char **);
  78
  79 static int zpool_do_upgrade(int, char **);
  80
  81 static int zpool_do_history(int, char **);
  82 static int zpool_do_events(int, char **);
  83
  84 static int zpool_do_get(int, char **);
  85 static int zpool_do_set(int, char **);
  86
  87 /*
  88  * These libumem hooks provide a reasonable set of defaults for the allocator's
  89  * debugging facilities.
  90  */
  91
  92 #ifdef DEBUG
  93 const char *
  94 _umem_debug_init(void)
  95 {
  96         return ("default,verbose"); /* $UMEM_DEBUG setting */
  97 }
  98
  99 const char *
 100 _umem_logging_init(void)
 101 {
 102         return ("fail,contents"); /* $UMEM_LOGGING setting */
 103 }
 104 #endif
 105
 106 typedef enum {
 107         HELP_ADD,
 108         HELP_ATTACH,
 109         HELP_CLEAR,
 110         HELP_CREATE,
 111         HELP_DESTROY,
 112         HELP_DETACH,
 113         HELP_EXPORT,
 114         HELP_HISTORY,
 115         HELP_IMPORT,
 116         HELP_IOSTAT,
 117         HELP_LIST,
 118         HELP_OFFLINE,
 119         HELP_ONLINE,
 120         HELP_REPLACE,
 121         HELP_REMOVE,
 122         HELP_SCRUB,
 123         HELP_STATUS,
 124         HELP_UPGRADE,
 125         HELP_EVENTS,
 126         HELP_GET,
 127         HELP_SET,
 128         HELP_SPLIT
 129 } zpool_help_t;
 130
 131
 132 typedef struct zpool_command {
 133         const char      *name;
 134         int             (*func)(int, char **);
 135         zpool_help_t    usage;
 136 } zpool_command_t;
 137
 138 /*
 139  * Master command table.  Each ZFS command has a name, associated function, and
 140  * usage message.  The usage messages need to be internationalized, so we have
 141  * to have a function to return the usage message based on a command index.
 142  *
 143  * These commands are organized according to how they are displayed in the usage
 144  * message.  An empty command (one with a NULL name) indicates an empty line in
 145  * the generic usage message.
 146  */
 147 static zpool_command_t command_table[] = {
 148         { "create",     zpool_do_create,        HELP_CREATE             },
 149         { "destroy",    zpool_do_destroy,       HELP_DESTROY            },
 150         { NULL },
 151         { "add",        zpool_do_add,           HELP_ADD                },
 152         { "remove",     zpool_do_remove,        HELP_REMOVE             },
 153         { NULL },
 154         { "list",       zpool_do_list,          HELP_LIST               },
 155         { "iostat",     zpool_do_iostat,        HELP_IOSTAT             },
 156         { "status",     zpool_do_status,        HELP_STATUS             },
 157         { NULL },
 158         { "online",     zpool_do_online,        HELP_ONLINE             },
 159         { "offline",    zpool_do_offline,       HELP_OFFLINE            },
 160         { "clear",      zpool_do_clear,         HELP_CLEAR              },
 161         { NULL },
 162         { "attach",     zpool_do_attach,        HELP_ATTACH             },
 163         { "detach",     zpool_do_detach,        HELP_DETACH             },
 164         { "replace",    zpool_do_replace,       HELP_REPLACE            },
 165         { "split",      zpool_do_split,         HELP_SPLIT              },
 166         { NULL },
 167         { "scrub",      zpool_do_scrub,         HELP_SCRUB              },
 168         { NULL },
 169         { "import",     zpool_do_import,        HELP_IMPORT             },
 170         { "export",     zpool_do_export,        HELP_EXPORT             },
 171         { "upgrade",    zpool_do_upgrade,       HELP_UPGRADE            },
 172         { NULL },
 173         { "history",    zpool_do_history,       HELP_HISTORY            },
 174         { "events",     zpool_do_events,        HELP_EVENTS             },
 175         { NULL },
 176         { "get",        zpool_do_get,           HELP_GET                },
 177         { "set",        zpool_do_set,           HELP_SET                },
 178 };
 179
 180 #define NCOMMAND        (sizeof (command_table) / sizeof (command_table[0]))
 181
 182 zpool_command_t *current_command;
 183 static char history_str[HIS_MAX_RECORD_LEN];
 184
 185 static uint_t timestamp_fmt = NODATE;
 186
 187 static const char *
 188 get_usage(zpool_help_t idx) {
 189         switch (idx) {
 190         case HELP_ADD:
 191                 return (gettext("\tadd [-fn] <pool> <vdev> ...\n"));
 192         case HELP_ATTACH:
 193                 return (gettext("\tattach [-f] <pool> <device> "
 194                     "<new-device>\n"));
 195         case HELP_CLEAR:
 196                 return (gettext("\tclear [-nF] <pool> [device]\n"));
 197         case HELP_CREATE:
 198                 return (gettext("\tcreate [-fn] [-o property=value] ... \n"
 199                     "\t    [-O file-system-property=value] ... \n"
 200                     "\t    [-m mountpoint] [-R root] <pool> <vdev> ...\n"));
 201         case HELP_DESTROY:
 202                 return (gettext("\tdestroy [-f] <pool>\n"));
 203         case HELP_DETACH:
 204                 return (gettext("\tdetach <pool> <device>\n"));
 205         case HELP_EXPORT:
 206                 return (gettext("\texport [-f] <pool> ...\n"));
 207         case HELP_HISTORY:
 208                 return (gettext("\thistory [-il] [<pool>] ...\n"));
 209         case HELP_IMPORT:
 210                 return (gettext("\timport [-d dir] [-D]\n"
 211                     "\timport [-d dir | -c cachefile] [-F [-n]] <pool | id>\n"
 212                     "\timport [-o mntopts] [-o property=value] ... \n"
 213                     "\t    [-d dir | -c cachefile] [-D] [-f] [-m] [-N] "
 214                     "[-R root] [-F [-n]] -a\n"
 215                     "\timport [-o mntopts] [-o property=value] ... \n"
 216                     "\t    [-d dir | -c cachefile] [-D] [-f] [-m] [-N] "
 217                     "[-R root] [-F [-n]]\n"
 218                     "\t    <pool | id> [newpool]\n"));
 219         case HELP_IOSTAT:
 220                 return (gettext("\tiostat [-v] [-T d|u] [pool] ... [interval "
 221                     "[count]]\n"));
 222         case HELP_LIST:
 223                 return (gettext("\tlist [-H] [-o property[,...]] "
 224                     "[-T d|u] [pool] ... [interval [count]]\n"));
 225         case HELP_OFFLINE:
 226                 return (gettext("\toffline [-t] <pool> <device> ...\n"));
 227         case HELP_ONLINE:
 228                 return (gettext("\tonline <pool> <device> ...\n"));
 229         case HELP_REPLACE:
 230                 return (gettext("\treplace [-f] <pool> <device> "
 231                     "[new-device]\n"));
 232         case HELP_REMOVE:
 233                 return (gettext("\tremove <pool> <device> ...\n"));
 234         case HELP_SCRUB:
 235                 return (gettext("\tscrub [-s] <pool> ...\n"));
 236         case HELP_STATUS:
 237                 return (gettext("\tstatus [-vx] [-T d|u] [pool] ... [interval "
 238                     "[count]]\n"));
 239         case HELP_UPGRADE:
 240                 return (gettext("\tupgrade\n"
 241                     "\tupgrade -v\n"
 242                     "\tupgrade [-V version] <-a | pool ...>\n"));
 243         case HELP_EVENTS:
 244                 return (gettext("\tevents [-vfc]\n"));
 245         case HELP_GET:
 246                 return (gettext("\tget <\"all\" | property[,...]> "
 247                     "<pool> ...\n"));
 248         case HELP_SET:
 249                 return (gettext("\tset <property=value> <pool> \n"));
 250         case HELP_SPLIT:
 251                 return (gettext("\tsplit [-n] [-R altroot] [-o mntopts]\n"
 252                     "\t    [-o property=value] <pool> <newpool> "
 253                     "[<device> ...]\n"));
 254         }
 255
 256         abort();
 257         /* NOTREACHED */
 258 }
 259
 260
 261 /*
 262  * Callback routine that will print out a pool property value.
 263  */
 264 static int
 265 print_prop_cb(int prop, void *cb)
 266 {
 267         FILE *fp = cb;
 268
 269         (void) fprintf(fp, "\t%-15s  ", zpool_prop_to_name(prop));
 270
 271         if (zpool_prop_readonly(prop))
 272                 (void) fprintf(fp, "  NO   ");
 273         else
 274                 (void) fprintf(fp, " YES   ");
 275
 276         if (zpool_prop_values(prop) == NULL)
 277                 (void) fprintf(fp, "-\n");
 278         else
 279                 (void) fprintf(fp, "%s\n", zpool_prop_values(prop));
 280
 281         return (ZPROP_CONT);
 282 }
 283
 284 /*
 285  * Display usage message.  If we're inside a command, display only the usage for
 286  * that command.  Otherwise, iterate over the entire command table and display
 287  * a complete usage message.
 288  */
 289 void
 290 usage(boolean_t requested)
 291 {
 292         FILE *fp = requested ? stdout : stderr;
 293
 294         if (current_command == NULL) {
 295                 int i;
 296
 297                 (void) fprintf(fp, gettext("usage: zpool command args ...\n"));
 298                 (void) fprintf(fp,
 299                     gettext("where 'command' is one of the following:\n\n"));
 300
 301                 for (i = 0; i < NCOMMAND; i++) {
 302                         if (command_table[i].name == NULL)
 303                                 (void) fprintf(fp, "\n");
 304                         else
 305                                 (void) fprintf(fp, "%s",
 306                                     get_usage(command_table[i].usage));
 307                 }
 308         } else {
 309                 (void) fprintf(fp, gettext("usage:\n"));
 310                 (void) fprintf(fp, "%s", get_usage(current_command->usage));
 311         }
 312
 313         if (current_command != NULL &&
 314             ((strcmp(current_command->name, "set") == 0) ||
 315             (strcmp(current_command->name, "get") == 0) ||
 316             (strcmp(current_command->name, "list") == 0))) {
 317
 318                 (void) fprintf(fp,
 319                     gettext("\nthe following properties are supported:\n"));
 320
 321                 (void) fprintf(fp, "\n\t%-15s  %s   %s\n\n",
 322                     "PROPERTY", "EDIT", "VALUES");
 323
 324                 /* Iterate over all properties */
 325                 (void) zprop_iter(print_prop_cb, fp, B_FALSE, B_TRUE,
 326                     ZFS_TYPE_POOL);
 327         }
 328
 329         /*
 330          * See comments at end of main().
 331          */
 332         if (getenv("ZFS_ABORT") != NULL) {
 333                 (void) printf("dumping core by request\n");
 334                 abort();
 335         }
 336
 337         exit(requested ? 0 : 2);
 338 }
 339
 340 void
 341 print_vdev_tree(zpool_handle_t *zhp, const char *name, nvlist_t *nv, int indent,
 342     boolean_t print_logs)
 343 {
 344         nvlist_t **child;
 345         uint_t c, children;
 346         char *vname;
 347
 348         if (name != NULL)
 349                 (void) printf("\t%*s%s\n", indent, "", name);
 350
 351         if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
 352             &child, &children) != 0)
 353                 return;
 354
 355         for (c = 0; c < children; c++) {
 356                 uint64_t is_log = B_FALSE;
 357
 358                 (void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_LOG,
 359                     &is_log);
 360                 if ((is_log && !print_logs) || (!is_log && print_logs))
 361                         continue;
 362
 363                 vname = zpool_vdev_name(g_zfs, zhp, child[c], B_FALSE);
 364                 print_vdev_tree(zhp, vname, child[c], indent + 2,
 365                     B_FALSE);
 366                 free(vname);
 367         }
 368 }
 369
 370 /*
 371  * Add a property pair (name, string-value) into a property nvlist.
 372  */
 373 static int
 374 add_prop_list(const char *propname, char *propval, nvlist_t **props,
 375     boolean_t poolprop)
 376 {
 377         zpool_prop_t prop = ZPROP_INVAL;
 378         zfs_prop_t fprop;
 379         nvlist_t *proplist;
 380         const char *normnm;
 381         char *strval;
 382
 383         if (*props == NULL &&
 384             nvlist_alloc(props, NV_UNIQUE_NAME, 0) != 0) {
 385                 (void) fprintf(stderr,
 386                     gettext("internal error: out of memory\n"));
 387                 return (1);
 388         }
 389
 390         proplist = *props;
 391
 392         if (poolprop) {
 393                 if ((prop = zpool_name_to_prop(propname)) == ZPROP_INVAL) {
 394                         (void) fprintf(stderr, gettext("property '%s' is "
 395                             "not a valid pool property\n"), propname);
 396                         return (2);
 397                 }
 398                 normnm = zpool_prop_to_name(prop);
 399         } else {
 400                 if ((fprop = zfs_name_to_prop(propname)) != ZPROP_INVAL) {
 401                         normnm = zfs_prop_to_name(fprop);
 402                 } else {
 403                         normnm = propname;
 404                 }
 405         }
 406
 407         if (nvlist_lookup_string(proplist, normnm, &strval) == 0 &&
 408             prop != ZPOOL_PROP_CACHEFILE) {
 409                 (void) fprintf(stderr, gettext("property '%s' "
 410                     "specified multiple times\n"), propname);
 411                 return (2);
 412         }
 413
 414         if (nvlist_add_string(proplist, normnm, propval) != 0) {
 415                 (void) fprintf(stderr, gettext("internal "
 416                     "error: out of memory\n"));
 417                 return (1);
 418         }
 419
 420         return (0);
 421 }
 422
 423 /*
 424  * zpool add [-fn] <pool> <vdev> ...
 425  *
 426  *      -f      Force addition of devices, even if they appear in use
 427  *      -n      Do not add the devices, but display the resulting layout if
 428  *              they were to be added.
 429  *
 430  * Adds the given vdevs to 'pool'.  As with create, the bulk of this work is
 431  * handled by get_vdev_spec(), which constructs the nvlist needed to pass to
 432  * libzfs.
 433  */
 434 int
 435 zpool_do_add(int argc, char **argv)
 436 {
 437         boolean_t force = B_FALSE;
 438         boolean_t dryrun = B_FALSE;
 439         int c;
 440         nvlist_t *nvroot;
 441         char *poolname;
 442         int ret;
 443         zpool_handle_t *zhp;
 444         nvlist_t *config;
 445
 446         /* check options */
 447         while ((c = getopt(argc, argv, "fn")) != -1) {
 448                 switch (c) {
 449                 case 'f':
 450                         force = B_TRUE;
 451                         break;
 452                 case 'n':
 453                         dryrun = B_TRUE;
 454                         break;
 455                 case '?':
 456                         (void) fprintf(stderr, gettext("invalid option '%c'\n"),
 457                             optopt);
 458                         usage(B_FALSE);
 459                 }
 460         }
 461
 462         argc -= optind;
 463         argv += optind;
 464
 465         /* get pool name and check number of arguments */
 466         if (argc < 1) {
 467                 (void) fprintf(stderr, gettext("missing pool name argument\n"));
 468                 usage(B_FALSE);
 469         }
 470         if (argc < 2) {
 471                 (void) fprintf(stderr, gettext("missing vdev specification\n"));
 472                 usage(B_FALSE);
 473         }
 474
 475         poolname = argv[0];
 476
 477         argc--;
 478         argv++;
 479
 480         if ((zhp = zpool_open(g_zfs, poolname)) == NULL)
 481                 return (1);
 482
 483         if ((config = zpool_get_config(zhp, NULL)) == NULL) {
 484                 (void) fprintf(stderr, gettext("pool '%s' is unavailable\n"),
 485                     poolname);
 486                 zpool_close(zhp);
 487                 return (1);
 488         }
 489
 490         /* pass off to get_vdev_spec for processing */
 491         nvroot = make_root_vdev(zhp, force, !force, B_FALSE, dryrun,
 492             argc, argv);
 493         if (nvroot == NULL) {
 494                 zpool_close(zhp);
 495                 return (1);
 496         }
 497
 498         if (dryrun) {
 499                 nvlist_t *poolnvroot;
 500
 501                 verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
 502                     &poolnvroot) == 0);
 503
 504                 (void) printf(gettext("would update '%s' to the following "
 505                     "configuration:\n"), zpool_get_name(zhp));
 506
 507                 /* print original main pool and new tree */
 508                 print_vdev_tree(zhp, poolname, poolnvroot, 0, B_FALSE);
 509                 print_vdev_tree(zhp, NULL, nvroot, 0, B_FALSE);
 510
 511                 /* Do the same for the logs */
 512                 if (num_logs(poolnvroot) > 0) {
 513                         print_vdev_tree(zhp, "logs", poolnvroot, 0, B_TRUE);
 514                         print_vdev_tree(zhp, NULL, nvroot, 0, B_TRUE);
 515                 } else if (num_logs(nvroot) > 0) {
 516                         print_vdev_tree(zhp, "logs", nvroot, 0, B_TRUE);
 517                 }
 518
 519                 ret = 0;
 520         } else {
 521                 ret = (zpool_add(zhp, nvroot) != 0);
 522         }
 523
 524         nvlist_free(nvroot);
 525         zpool_close(zhp);
 526
 527         return (ret);
 528 }
 529
 530 /*
 531  * zpool remove  <pool> <vdev> ...
 532  *
 533  * Removes the given vdev from the pool.  Currently, this supports removing
 534  * spares, cache, and log devices from the pool.
 535  */
 536 int
 537 zpool_do_remove(int argc, char **argv)
 538 {
 539         char *poolname;
 540         int i, ret = 0;
 541         zpool_handle_t *zhp;
 542
 543         argc--;
 544         argv++;
 545
 546         /* get pool name and check number of arguments */
 547         if (argc < 1) {
 548                 (void) fprintf(stderr, gettext("missing pool name argument\n"));
 549                 usage(B_FALSE);
 550         }
 551         if (argc < 2) {
 552                 (void) fprintf(stderr, gettext("missing device\n"));
 553                 usage(B_FALSE);
 554         }
 555
 556         poolname = argv[0];
 557
 558         if ((zhp = zpool_open(g_zfs, poolname)) == NULL)
 559                 return (1);
 560
 561         for (i = 1; i < argc; i++) {
 562                 if (zpool_vdev_remove(zhp, argv[i]) != 0)
 563                         ret = 1;
 564         }
 565
 566         return (ret);
 567 }
 568
 569 /*
 570  * zpool create [-fn] [-o property=value] ...
 571  *              [-O file-system-property=value] ...
 572  *              [-R root] [-m mountpoint] <pool> <dev> ...
 573  *
 574  *      -f      Force creation, even if devices appear in use
 575  *      -n      Do not create the pool, but display the resulting layout if it
 576  *              were to be created.
 577  *      -R      Create a pool under an alternate root
 578  *      -m      Set default mountpoint for the root dataset.  By default it's
 579  *              '/<pool>'
 580  *      -o      Set property=value.
 581  *      -O      Set fsproperty=value in the pool's root file system
 582  *
 583  * Creates the named pool according to the given vdev specification.  The
 584  * bulk of the vdev processing is done in get_vdev_spec() in zpool_vdev.c.  Once
 585  * we get the nvlist back from get_vdev_spec(), we either print out the contents
 586  * (if '-n' was specified), or pass it to libzfs to do the creation.
 587  */
 588 int
 589 zpool_do_create(int argc, char **argv)
 590 {
 591         boolean_t force = B_FALSE;
 592         boolean_t dryrun = B_FALSE;
 593         int c;
 594         nvlist_t *nvroot = NULL;
 595         char *poolname;
 596         int ret = 1;
 597         char *altroot = NULL;
 598         char *mountpoint = NULL;
 599         nvlist_t *fsprops = NULL;
 600         nvlist_t *props = NULL;
 601         char *propval;
 602
 603         /* check options */
 604         while ((c = getopt(argc, argv, ":fnR:m:o:O:")) != -1) {
 605                 switch (c) {
 606                 case 'f':
 607                         force = B_TRUE;
 608                         break;
 609                 case 'n':
 610                         dryrun = B_TRUE;
 611                         break;
 612                 case 'R':
 613                         altroot = optarg;
 614                         if (add_prop_list(zpool_prop_to_name(
 615                             ZPOOL_PROP_ALTROOT), optarg, &props, B_TRUE))
 616                                 goto errout;
 617                         if (nvlist_lookup_string(props,
 618                             zpool_prop_to_name(ZPOOL_PROP_CACHEFILE),
 619                             &propval) == 0)
 620                                 break;
 621                         if (add_prop_list(zpool_prop_to_name(
 622                             ZPOOL_PROP_CACHEFILE), "none", &props, B_TRUE))
 623                                 goto errout;
 624                         break;
 625                 case 'm':
 626                         mountpoint = optarg;
 627                         break;
 628                 case 'o':
 629                         if ((propval = strchr(optarg, '=')) == NULL) {
 630                                 (void) fprintf(stderr, gettext("missing "
 631                                     "'=' for -o option\n"));
 632                                 goto errout;
 633                         }
 634                         *propval = '\0';
 635                         propval++;
 636
 637                         if (add_prop_list(optarg, propval, &props, B_TRUE))
 638                                 goto errout;
 639                         break;
 640                 case 'O':
 641                         if ((propval = strchr(optarg, '=')) == NULL) {
 642                                 (void) fprintf(stderr, gettext("missing "
 643                                     "'=' for -O option\n"));
 644                                 goto errout;
 645                         }
 646                         *propval = '\0';
 647                         propval++;
 648
 649                         if (add_prop_list(optarg, propval, &fsprops, B_FALSE))
 650                                 goto errout;
 651                         break;
 652                 case ':':
 653                         (void) fprintf(stderr, gettext("missing argument for "
 654                             "'%c' option\n"), optopt);
 655                         goto badusage;
 656                 case '?':
 657                         (void) fprintf(stderr, gettext("invalid option '%c'\n"),
 658                             optopt);
 659                         goto badusage;
 660                 }
 661         }
 662
 663         argc -= optind;
 664         argv += optind;
 665
 666         /* get pool name and check number of arguments */
 667         if (argc < 1) {
 668                 (void) fprintf(stderr, gettext("missing pool name argument\n"));
 669                 goto badusage;
 670         }
 671         if (argc < 2) {
 672                 (void) fprintf(stderr, gettext("missing vdev specification\n"));
 673                 goto badusage;
 674         }
 675
 676         poolname = argv[0];
 677
 678         /*
 679          * As a special case, check for use of '/' in the name, and direct the
 680          * user to use 'zfs create' instead.
 681          */
 682         if (strchr(poolname, '/') != NULL) {
 683                 (void) fprintf(stderr, gettext("cannot create '%s': invalid "
 684                     "character '/' in pool name\n"), poolname);
 685                 (void) fprintf(stderr, gettext("use 'zfs create' to "
 686                     "create a dataset\n"));
 687                 goto errout;
 688         }
 689
 690         /* pass off to get_vdev_spec for bulk processing */
 691         nvroot = make_root_vdev(NULL, force, !force, B_FALSE, dryrun,
 692             argc - 1, argv + 1);
 693         if (nvroot == NULL)
 694                 goto errout;
 695
 696         /* make_root_vdev() allows 0 toplevel children if there are spares */
 697         if (!zfs_allocatable_devs(nvroot)) {
 698                 (void) fprintf(stderr, gettext("invalid vdev "
 699                     "specification: at least one toplevel vdev must be "
 700                     "specified\n"));
 701                 goto errout;
 702         }
 703
 704
 705         if (altroot != NULL && altroot[0] != '/') {
 706                 (void) fprintf(stderr, gettext("invalid alternate root '%s': "
 707                     "must be an absolute path\n"), altroot);
 708                 goto errout;
 709         }
 710
 711         /*
 712          * Check the validity of the mountpoint and direct the user to use the
 713          * '-m' mountpoint option if it looks like its in use.
 714          */
 715         if (mountpoint == NULL ||
 716             (strcmp(mountpoint, ZFS_MOUNTPOINT_LEGACY) != 0 &&
 717             strcmp(mountpoint, ZFS_MOUNTPOINT_NONE) != 0)) {
 718                 char buf[MAXPATHLEN];
 719                 DIR *dirp;
 720
 721                 if (mountpoint && mountpoint[0] != '/') {
 722                         (void) fprintf(stderr, gettext("invalid mountpoint "
 723                             "'%s': must be an absolute path, 'legacy', or "
 724                             "'none'\n"), mountpoint);
 725                         goto errout;
 726                 }
 727
 728                 if (mountpoint == NULL) {
 729                         if (altroot != NULL)
 730                                 (void) snprintf(buf, sizeof (buf), "%s/%s",
 731                                     altroot, poolname);
 732                         else
 733                                 (void) snprintf(buf, sizeof (buf), "/%s",
 734                                     poolname);
 735                 } else {
 736                         if (altroot != NULL)
 737                                 (void) snprintf(buf, sizeof (buf), "%s%s",
 738                                     altroot, mountpoint);
 739                         else
 740                                 (void) snprintf(buf, sizeof (buf), "%s",
 741                                     mountpoint);
 742                 }
 743
 744                 if ((dirp = opendir(buf)) == NULL && errno != ENOENT) {
 745                         (void) fprintf(stderr, gettext("mountpoint '%s' : "
 746                             "%s\n"), buf, strerror(errno));
 747                         (void) fprintf(stderr, gettext("use '-m' "
 748                             "option to provide a different default\n"));
 749                         goto errout;
 750                 } else if (dirp) {
 751                         int count = 0;
 752
 753                         while (count < 3 && readdir(dirp) != NULL)
 754                                 count++;
 755                         (void) closedir(dirp);
 756
 757                         if (count > 2) {
 758                                 (void) fprintf(stderr, gettext("mountpoint "
 759                                     "'%s' exists and is not empty\n"), buf);
 760                                 (void) fprintf(stderr, gettext("use '-m' "
 761                                     "option to provide a "
 762                                     "different default\n"));
 763                                 goto errout;
 764                         }
 765                 }
 766         }
 767
 768         if (dryrun) {
 769                 /*
 770                  * For a dry run invocation, print out a basic message and run
 771                  * through all the vdevs in the list and print out in an
 772                  * appropriate hierarchy.
 773                  */
 774                 (void) printf(gettext("would create '%s' with the "
 775                     "following layout:\n\n"), poolname);
 776
 777                 print_vdev_tree(NULL, poolname, nvroot, 0, B_FALSE);
 778                 if (num_logs(nvroot) > 0)
 779                         print_vdev_tree(NULL, "logs", nvroot, 0, B_TRUE);
 780
 781                 ret = 0;
 782         } else {
 783                 /*
 784                  * Hand off to libzfs.
 785                  */
 786                 if (zpool_create(g_zfs, poolname,
 787                     nvroot, props, fsprops) == 0) {
 788                         zfs_handle_t *pool = zfs_open(g_zfs, poolname,
 789                             ZFS_TYPE_FILESYSTEM);
 790                         if (pool != NULL) {
 791                                 if (mountpoint != NULL)
 792                                         verify(zfs_prop_set(pool,
 793                                             zfs_prop_to_name(
 794                                             ZFS_PROP_MOUNTPOINT),
 795                                             mountpoint) == 0);
 796                                 if (zfs_mount(pool, NULL, 0) == 0)
 797                                         ret = zfs_shareall(pool);
 798                                 zfs_close(pool);
 799                         }
 800                 } else if (libzfs_errno(g_zfs) == EZFS_INVALIDNAME) {
 801                         (void) fprintf(stderr, gettext("pool name may have "
 802                             "been omitted\n"));
 803                 }
 804         }
 805
 806 errout:
 807         nvlist_free(nvroot);
 808         nvlist_free(fsprops);
 809         nvlist_free(props);
 810         return (ret);
 811 badusage:
 812         nvlist_free(fsprops);
 813         nvlist_free(props);
 814         usage(B_FALSE);
 815         return (2);
 816 }
 817
 818 /*
 819  * zpool destroy <pool>
 820  *
 821  *      -f      Forcefully unmount any datasets
 822  *
 823  * Destroy the given pool.  Automatically unmounts any datasets in the pool.
 824  */
 825 int
 826 zpool_do_destroy(int argc, char **argv)
 827 {
 828         boolean_t force = B_FALSE;
 829         int c;
 830         char *pool;
 831         zpool_handle_t *zhp;
 832         int ret;
 833
 834         /* check options */
 835         while ((c = getopt(argc, argv, "f")) != -1) {
 836                 switch (c) {
 837                 case 'f':
 838                         force = B_TRUE;
 839                         break;
 840                 case '?':
 841                         (void) fprintf(stderr, gettext("invalid option '%c'\n"),
 842                             optopt);
 843                         usage(B_FALSE);
 844                 }
 845         }
 846
 847         argc -= optind;
 848         argv += optind;
 849
 850         /* check arguments */
 851         if (argc < 1) {
 852                 (void) fprintf(stderr, gettext("missing pool argument\n"));
 853                 usage(B_FALSE);
 854         }
 855         if (argc > 1) {
 856                 (void) fprintf(stderr, gettext("too many arguments\n"));
 857                 usage(B_FALSE);
 858         }
 859
 860         pool = argv[0];
 861
 862         if ((zhp = zpool_open_canfail(g_zfs, pool)) == NULL) {
 863                 /*
 864                  * As a special case, check for use of '/' in the name, and
 865                  * direct the user to use 'zfs destroy' instead.
 866                  */
 867                 if (strchr(pool, '/') != NULL)
 868                         (void) fprintf(stderr, gettext("use 'zfs destroy' to "
 869                             "destroy a dataset\n"));
 870                 return (1);
 871         }
 872
 873         if (zpool_disable_datasets(zhp, force) != 0) {
 874                 (void) fprintf(stderr, gettext("could not destroy '%s': "
 875                     "could not unmount datasets\n"), zpool_get_name(zhp));
 876                 return (1);
 877         }
 878
 879         ret = (zpool_destroy(zhp) != 0);
 880
 881         zpool_close(zhp);
 882
 883         return (ret);
 884 }
 885
 886 /*
 887  * zpool export [-f] <pool> ...
 888  *
 889  *      -f      Forcefully unmount datasets
 890  *
 891  * Export the given pools.  By default, the command will attempt to cleanly
 892  * unmount any active datasets within the pool.  If the '-f' flag is specified,
 893  * then the datasets will be forcefully unmounted.
 894  */
 895 int
 896 zpool_do_export(int argc, char **argv)
 897 {
 898         boolean_t force = B_FALSE;
 899         boolean_t hardforce = B_FALSE;
 900         int c;
 901         zpool_handle_t *zhp;
 902         int ret;
 903         int i;
 904
 905         /* check options */
 906         while ((c = getopt(argc, argv, "fF")) != -1) {
 907                 switch (c) {
 908                 case 'f':
 909                         force = B_TRUE;
 910                         break;
 911                 case 'F':
 912                         hardforce = B_TRUE;
 913                         break;
 914                 case '?':
 915                         (void) fprintf(stderr, gettext("invalid option '%c'\n"),
 916                             optopt);
 917                         usage(B_FALSE);
 918                 }
 919         }
 920
 921         argc -= optind;
 922         argv += optind;
 923
 924         /* check arguments */
 925         if (argc < 1) {
 926                 (void) fprintf(stderr, gettext("missing pool argument\n"));
 927                 usage(B_FALSE);
 928         }
 929
 930         ret = 0;
 931         for (i = 0; i < argc; i++) {
 932                 if ((zhp = zpool_open_canfail(g_zfs, argv[i])) == NULL) {
 933                         ret = 1;
 934                         continue;
 935                 }
 936
 937                 if (zpool_disable_datasets(zhp, force) != 0) {
 938                         ret = 1;
 939                         zpool_close(zhp);
 940                         continue;
 941                 }
 942
 943                 if (hardforce) {
 944                         if (zpool_export_force(zhp) != 0)
 945                                 ret = 1;
 946                 } else if (zpool_export(zhp, force) != 0) {
 947                         ret = 1;
 948                 }
 949
 950                 zpool_close(zhp);
 951         }
 952
 953         return (ret);
 954 }
 955
 956 /*
 957  * Given a vdev configuration, determine the maximum width needed for the device
 958  * name column.
 959  */
 960 static int
 961 max_width(zpool_handle_t *zhp, nvlist_t *nv, int depth, int max)
 962 {
 963         char *name = zpool_vdev_name(g_zfs, zhp, nv, B_TRUE);
 964         nvlist_t **child;
 965         uint_t c, children;
 966         int ret;
 967
 968         if (strlen(name) + depth > max)
 969                 max = strlen(name) + depth;
 970
 971         free(name);
 972
 973         if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_SPARES,
 974             &child, &children) == 0) {
 975                 for (c = 0; c < children; c++)
 976                         if ((ret = max_width(zhp, child[c], depth + 2,
 977                             max)) > max)
 978                                 max = ret;
 979         }
 980
 981         if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_L2CACHE,
 982             &child, &children) == 0) {
 983                 for (c = 0; c < children; c++)
 984                         if ((ret = max_width(zhp, child[c], depth + 2,
 985                             max)) > max)
 986                                 max = ret;
 987         }
 988
 989         if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
 990             &child, &children) == 0) {
 991                 for (c = 0; c < children; c++)
 992                         if ((ret = max_width(zhp, child[c], depth + 2,
 993                             max)) > max)
 994                                 max = ret;
 995         }
 996
 997
 998         return (max);
 999 }
1000
1001 typedef struct spare_cbdata {
1002         uint64_t        cb_guid;
1003         zpool_handle_t  *cb_zhp;
1004 } spare_cbdata_t;
1005
1006 static boolean_t
1007 find_vdev(nvlist_t *nv, uint64_t search)
1008 {
1009         uint64_t guid;
1010         nvlist_t **child;
1011         uint_t c, children;
1012
1013         if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_GUID, &guid) == 0 &&
1014             search == guid)
1015                 return (B_TRUE);
1016
1017         if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
1018             &child, &children) == 0) {
1019                 for (c = 0; c < children; c++)
1020                         if (find_vdev(child[c], search))
1021                                 return (B_TRUE);
1022         }
1023
1024         return (B_FALSE);
1025 }
1026
1027 static int
1028 find_spare(zpool_handle_t *zhp, void *data)
1029 {
1030         spare_cbdata_t *cbp = data;
1031         nvlist_t *config, *nvroot;
1032
1033         config = zpool_get_config(zhp, NULL);
1034         verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
1035             &nvroot) == 0);
1036
1037         if (find_vdev(nvroot, cbp->cb_guid)) {
1038                 cbp->cb_zhp = zhp;
1039                 return (1);
1040         }
1041
1042         zpool_close(zhp);
1043         return (0);
1044 }
1045
1046 /*
1047  * Print out configuration state as requested by status_callback.
1048  */
1049 void
1050 print_status_config(zpool_handle_t *zhp, const char *name, nvlist_t *nv,
1051     int namewidth, int depth, boolean_t isspare)
1052 {
1053         nvlist_t **child;
1054         uint_t c, children;
1055         pool_scan_stat_t *ps = NULL;
1056         vdev_stat_t *vs;
1057         char rbuf[6], wbuf[6], cbuf[6];
1058         char *vname;
1059         uint64_t notpresent;
1060         spare_cbdata_t cb;
1061         char *state;
1062
1063         if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
1064             &child, &children) != 0)
1065                 children = 0;
1066
1067         verify(nvlist_lookup_uint64_array(nv, ZPOOL_CONFIG_VDEV_STATS,
1068             (uint64_t **)&vs, &c) == 0);
1069
1070         state = zpool_state_to_name(vs->vs_state, vs->vs_aux);
1071         if (isspare) {
1072                 /*
1073                  * For hot spares, we use the terms 'INUSE' and 'AVAILABLE' for
1074                  * online drives.
1075                  */
1076                 if (vs->vs_aux == VDEV_AUX_SPARED)
1077                         state = "INUSE";
1078                 else if (vs->vs_state == VDEV_STATE_HEALTHY)
1079                         state = "AVAIL";
1080         }
1081
1082         (void) printf("\t%*s%-*s  %-8s", depth, "", namewidth - depth,
1083             name, state);
1084
1085         if (!isspare) {
1086                 zfs_nicenum(vs->vs_read_errors, rbuf, sizeof (rbuf));
1087                 zfs_nicenum(vs->vs_write_errors, wbuf, sizeof (wbuf));
1088                 zfs_nicenum(vs->vs_checksum_errors, cbuf, sizeof (cbuf));
1089                 (void) printf(" %5s %5s %5s", rbuf, wbuf, cbuf);
1090         }
1091
1092         if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_NOT_PRESENT,
1093             &notpresent) == 0) {
1094                 char *path;
1095                 verify(nvlist_lookup_string(nv, ZPOOL_CONFIG_PATH, &path) == 0);
1096                 (void) printf("  was %s", path);
1097         } else if (vs->vs_aux != 0) {
1098                 (void) printf("  ");
1099
1100                 switch (vs->vs_aux) {
1101                 case VDEV_AUX_OPEN_FAILED:
1102                         (void) printf(gettext("cannot open"));
1103                         break;
1104
1105                 case VDEV_AUX_BAD_GUID_SUM:
1106                         (void) printf(gettext("missing device"));
1107                         break;
1108
1109                 case VDEV_AUX_NO_REPLICAS:
1110                         (void) printf(gettext("insufficient replicas"));
1111                         break;
1112
1113                 case VDEV_AUX_VERSION_NEWER:
1114                         (void) printf(gettext("newer version"));
1115                         break;
1116
1117                 case VDEV_AUX_SPARED:
1118                         verify(nvlist_lookup_uint64(nv, ZPOOL_CONFIG_GUID,
1119                             &cb.cb_guid) == 0);
1120                         if (zpool_iter(g_zfs, find_spare, &cb) == 1) {
1121                                 if (strcmp(zpool_get_name(cb.cb_zhp),
1122                                     zpool_get_name(zhp)) == 0)
1123                                         (void) printf(gettext("currently in "
1124                                             "use"));
1125                                 else
1126                                         (void) printf(gettext("in use by "
1127                                             "pool '%s'"),
1128                                             zpool_get_name(cb.cb_zhp));
1129                                 zpool_close(cb.cb_zhp);
1130                         } else {
1131                                 (void) printf(gettext("currently in use"));
1132                         }
1133                         break;
1134
1135                 case VDEV_AUX_ERR_EXCEEDED:
1136                         (void) printf(gettext("too many errors"));
1137                         break;
1138
1139                 case VDEV_AUX_IO_FAILURE:
1140                         (void) printf(gettext("experienced I/O failures"));
1141                         break;
1142
1143                 case VDEV_AUX_BAD_LOG:
1144                         (void) printf(gettext("bad intent log"));
1145                         break;
1146
1147                 case VDEV_AUX_EXTERNAL:
1148                         (void) printf(gettext("external device fault"));
1149                         break;
1150
1151                 case VDEV_AUX_SPLIT_POOL:
1152                         (void) printf(gettext("split into new pool"));
1153                         break;
1154
1155                 default:
1156                         (void) printf(gettext("corrupted data"));
1157                         break;
1158                 }
1159         }
1160
1161         (void) nvlist_lookup_uint64_array(nv, ZPOOL_CONFIG_SCAN_STATS,
1162             (uint64_t **)&ps, &c);
1163
1164         if (ps && ps->pss_state == DSS_SCANNING &&
1165             vs->vs_scan_processed != 0 && children == 0) {
1166                 (void) printf(gettext("  (%s)"),
1167                     (ps->pss_func == POOL_SCAN_RESILVER) ?
1168                     "resilvering" : "repairing");
1169         }
1170
1171         (void) printf("\n");
1172
1173         for (c = 0; c < children; c++) {
1174                 uint64_t islog = B_FALSE, ishole = B_FALSE;
1175
1176                 /* Don't print logs or holes here */
1177                 (void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_LOG,
1178                     &islog);
1179                 (void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_HOLE,
1180                     &ishole);
1181                 if (islog || ishole)
1182                         continue;
1183                 vname = zpool_vdev_name(g_zfs, zhp, child[c], B_TRUE);
1184                 print_status_config(zhp, vname, child[c],
1185                     namewidth, depth + 2, isspare);
1186                 free(vname);
1187         }
1188 }
1189
1190
1191 /*
1192  * Print the configuration of an exported pool.  Iterate over all vdevs in the
1193  * pool, printing out the name and status for each one.
1194  */
1195 void
1196 print_import_config(const char *name, nvlist_t *nv, int namewidth, int depth)
1197 {
1198         nvlist_t **child;
1199         uint_t c, children;
1200         vdev_stat_t *vs;
1201         char *type, *vname;
1202
1203         verify(nvlist_lookup_string(nv, ZPOOL_CONFIG_TYPE, &type) == 0);
1204         if (strcmp(type, VDEV_TYPE_MISSING) == 0 ||
1205             strcmp(type, VDEV_TYPE_HOLE) == 0)
1206                 return;
1207
1208         verify(nvlist_lookup_uint64_array(nv, ZPOOL_CONFIG_VDEV_STATS,
1209             (uint64_t **)&vs, &c) == 0);
1210
1211         (void) printf("\t%*s%-*s", depth, "", namewidth - depth, name);
1212         (void) printf("  %s", zpool_state_to_name(vs->vs_state, vs->vs_aux));
1213
1214         if (vs->vs_aux != 0) {
1215                 (void) printf("  ");
1216
1217                 switch (vs->vs_aux) {
1218                 case VDEV_AUX_OPEN_FAILED:
1219                         (void) printf(gettext("cannot open"));
1220                         break;
1221
1222                 case VDEV_AUX_BAD_GUID_SUM:
1223                         (void) printf(gettext("missing device"));
1224                         break;
1225
1226                 case VDEV_AUX_NO_REPLICAS:
1227                         (void) printf(gettext("insufficient replicas"));
1228                         break;
1229
1230                 case VDEV_AUX_VERSION_NEWER:
1231                         (void) printf(gettext("newer version"));
1232                         break;
1233
1234                 case VDEV_AUX_ERR_EXCEEDED:
1235                         (void) printf(gettext("too many errors"));
1236                         break;
1237
1238                 default:
1239                         (void) printf(gettext("corrupted data"));
1240                         break;
1241                 }
1242         }
1243         (void) printf("\n");
1244
1245         if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
1246             &child, &children) != 0)
1247                 return;
1248
1249         for (c = 0; c < children; c++) {
1250                 uint64_t is_log = B_FALSE;
1251
1252                 (void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_LOG,
1253                     &is_log);
1254                 if (is_log)
1255                         continue;
1256
1257                 vname = zpool_vdev_name(g_zfs, NULL, child[c], B_TRUE);
1258                 print_import_config(vname, child[c], namewidth, depth + 2);
1259                 free(vname);
1260         }
1261
1262         if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_L2CACHE,
1263             &child, &children) == 0) {
1264                 (void) printf(gettext("\tcache\n"));
1265                 for (c = 0; c < children; c++) {
1266                         vname = zpool_vdev_name(g_zfs, NULL, child[c], B_FALSE);
1267                         (void) printf("\t  %s\n", vname);
1268                         free(vname);
1269                 }
1270         }
1271
1272         if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_SPARES,
1273             &child, &children) == 0) {
1274                 (void) printf(gettext("\tspares\n"));
1275                 for (c = 0; c < children; c++) {
1276                         vname = zpool_vdev_name(g_zfs, NULL, child[c], B_FALSE);
1277                         (void) printf("\t  %s\n", vname);
1278                         free(vname);
1279                 }
1280         }
1281 }
1282
1283 /*
1284  * Print log vdevs.
1285  * Logs are recorded as top level vdevs in the main pool child array
1286  * but with "is_log" set to 1. We use either print_status_config() or
1287  * print_import_config() to print the top level logs then any log
1288  * children (eg mirrored slogs) are printed recursively - which
1289  * works because only the top level vdev is marked "is_log"
1290  */
1291 static void
1292 print_logs(zpool_handle_t *zhp, nvlist_t *nv, int namewidth, boolean_t verbose)
1293 {
1294         uint_t c, children;
1295         nvlist_t **child;
1296
1297         if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN, &child,
1298             &children) != 0)
1299                 return;
1300
1301         (void) printf(gettext("\tlogs\n"));
1302
1303         for (c = 0; c < children; c++) {
1304                 uint64_t is_log = B_FALSE;
1305                 char *name;
1306
1307                 (void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_LOG,
1308                     &is_log);
1309                 if (!is_log)
1310                         continue;
1311                 name = zpool_vdev_name(g_zfs, zhp, child[c], B_TRUE);
1312                 if (verbose)
1313                         print_status_config(zhp, name, child[c], namewidth,
1314                             2, B_FALSE);
1315                 else
1316                         print_import_config(name, child[c], namewidth, 2);
1317                 free(name);
1318         }
1319 }
1320
1321 /*
1322  * Display the status for the given pool.
1323  */
1324 static void
1325 show_import(nvlist_t *config)
1326 {
1327         uint64_t pool_state;
1328         vdev_stat_t *vs;
1329         char *name;
1330         uint64_t guid;
1331         char *msgid;
1332         nvlist_t *nvroot;
1333         int reason;
1334         const char *health;
1335         uint_t vsc;
1336         int namewidth;
1337
1338         verify(nvlist_lookup_string(config, ZPOOL_CONFIG_POOL_NAME,
1339             &name) == 0);
1340         verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID,
1341             &guid) == 0);
1342         verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_STATE,
1343             &pool_state) == 0);
1344         verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
1345             &nvroot) == 0);
1346
1347         verify(nvlist_lookup_uint64_array(nvroot, ZPOOL_CONFIG_VDEV_STATS,
1348             (uint64_t **)&vs, &vsc) == 0);
1349         health = zpool_state_to_name(vs->vs_state, vs->vs_aux);
1350
1351         reason = zpool_import_status(config, &msgid);
1352
1353         (void) printf(gettext("  pool: %s\n"), name);
1354         (void) printf(gettext("    id: %llu\n"), (u_longlong_t)guid);
1355         (void) printf(gettext(" state: %s"), health);
1356         if (pool_state == POOL_STATE_DESTROYED)
1357                 (void) printf(gettext(" (DESTROYED)"));
1358         (void) printf("\n");
1359
1360         switch (reason) {
1361         case ZPOOL_STATUS_MISSING_DEV_R:
1362         case ZPOOL_STATUS_MISSING_DEV_NR:
1363         case ZPOOL_STATUS_BAD_GUID_SUM:
1364                 (void) printf(gettext("status: One or more devices are missing "
1365                     "from the system.\n"));
1366                 break;
1367
1368         case ZPOOL_STATUS_CORRUPT_LABEL_R:
1369         case ZPOOL_STATUS_CORRUPT_LABEL_NR:
1370                 (void) printf(gettext("status: One or more devices contains "
1371                     "corrupted data.\n"));
1372                 break;
1373
1374         case ZPOOL_STATUS_CORRUPT_DATA:
1375                 (void) printf(gettext("status: The pool data is corrupted.\n"));
1376                 break;
1377
1378         case ZPOOL_STATUS_OFFLINE_DEV:
1379                 (void) printf(gettext("status: One or more devices "
1380                     "are offlined.\n"));
1381                 break;
1382
1383         case ZPOOL_STATUS_CORRUPT_POOL:
1384                 (void) printf(gettext("status: The pool metadata is "
1385                     "corrupted.\n"));
1386                 break;
1387
1388         case ZPOOL_STATUS_VERSION_OLDER:
1389                 (void) printf(gettext("status: The pool is formatted using an "
1390                     "older on-disk version.\n"));
1391                 break;
1392
1393         case ZPOOL_STATUS_VERSION_NEWER:
1394                 (void) printf(gettext("status: The pool is formatted using an "
1395                     "incompatible version.\n"));
1396                 break;
1397
1398         case ZPOOL_STATUS_HOSTID_MISMATCH:
1399                 (void) printf(gettext("status: The pool was last accessed by "
1400                     "another system.\n"));
1401                 break;
1402
1403         case ZPOOL_STATUS_FAULTED_DEV_R:
1404         case ZPOOL_STATUS_FAULTED_DEV_NR:
1405                 (void) printf(gettext("status: One or more devices are "
1406                     "faulted.\n"));
1407                 break;
1408
1409         case ZPOOL_STATUS_BAD_LOG:
1410                 (void) printf(gettext("status: An intent log record cannot be "
1411                     "read.\n"));
1412                 break;
1413
1414         case ZPOOL_STATUS_RESILVERING:
1415                 (void) printf(gettext("status: One or more devices were being "
1416                     "resilvered.\n"));
1417                 break;
1418
1419         default:
1420                 /*
1421                  * No other status can be seen when importing pools.
1422                  */
1423                 assert(reason == ZPOOL_STATUS_OK);
1424         }
1425
1426         /*
1427          * Print out an action according to the overall state of the pool.
1428          */
1429         if (vs->vs_state == VDEV_STATE_HEALTHY) {
1430                 if (reason == ZPOOL_STATUS_VERSION_OLDER)
1431                         (void) printf(gettext("action: The pool can be "
1432                             "imported using its name or numeric identifier, "
1433                             "though\n\tsome features will not be available "
1434                             "without an explicit 'zpool upgrade'.\n"));
1435                 else if (reason == ZPOOL_STATUS_HOSTID_MISMATCH)
1436                         (void) printf(gettext("action: The pool can be "
1437                             "imported using its name or numeric "
1438                             "identifier and\n\tthe '-f' flag.\n"));
1439                 else
1440                         (void) printf(gettext("action: The pool can be "
1441                             "imported using its name or numeric "
1442                             "identifier.\n"));
1443         } else if (vs->vs_state == VDEV_STATE_DEGRADED) {
1444                 (void) printf(gettext("action: The pool can be imported "
1445                     "despite missing or damaged devices.  The\n\tfault "
1446                     "tolerance of the pool may be compromised if imported.\n"));
1447         } else {
1448                 switch (reason) {
1449                 case ZPOOL_STATUS_VERSION_NEWER:
1450                         (void) printf(gettext("action: The pool cannot be "
1451                             "imported.  Access the pool on a system running "
1452                             "newer\n\tsoftware, or recreate the pool from "
1453                             "backup.\n"));
1454                         break;
1455                 case ZPOOL_STATUS_MISSING_DEV_R:
1456                 case ZPOOL_STATUS_MISSING_DEV_NR:
1457                 case ZPOOL_STATUS_BAD_GUID_SUM:
1458                         (void) printf(gettext("action: The pool cannot be "
1459                             "imported. Attach the missing\n\tdevices and try "
1460                             "again.\n"));
1461                         break;
1462                 default:
1463                         (void) printf(gettext("action: The pool cannot be "
1464                             "imported due to damaged devices or data.\n"));
1465                 }
1466         }
1467
1468         /*
1469          * If the state is "closed" or "can't open", and the aux state
1470          * is "corrupt data":
1471          */
1472         if (((vs->vs_state == VDEV_STATE_CLOSED) ||
1473             (vs->vs_state == VDEV_STATE_CANT_OPEN)) &&
1474             (vs->vs_aux == VDEV_AUX_CORRUPT_DATA)) {
1475                 if (pool_state == POOL_STATE_DESTROYED)
1476                         (void) printf(gettext("\tThe pool was destroyed, "
1477                             "but can be imported using the '-Df' flags.\n"));
1478                 else if (pool_state != POOL_STATE_EXPORTED)
1479                         (void) printf(gettext("\tThe pool may be active on "
1480                             "another system, but can be imported using\n\t"
1481                             "the '-f' flag.\n"));
1482         }
1483
1484         if (msgid != NULL)
1485                 (void) printf(gettext("   see: http://www.sun.com/msg/%s\n"),
1486                     msgid);
1487
1488         (void) printf(gettext("config:\n\n"));
1489
1490         namewidth = max_width(NULL, nvroot, 0, 0);
1491         if (namewidth < 10)
1492                 namewidth = 10;
1493
1494         print_import_config(name, nvroot, namewidth, 0);
1495         if (num_logs(nvroot) > 0)
1496                 print_logs(NULL, nvroot, namewidth, B_FALSE);
1497
1498         if (reason == ZPOOL_STATUS_BAD_GUID_SUM) {
1499                 (void) printf(gettext("\n\tAdditional devices are known to "
1500                     "be part of this pool, though their\n\texact "
1501                     "configuration cannot be determined.\n"));
1502         }
1503 }
1504
1505 /*
1506  * Perform the import for the given configuration.  This passes the heavy
1507  * lifting off to zpool_import_props(), and then mounts the datasets contained
1508  * within the pool.
1509  */
1510 static int
1511 do_import(nvlist_t *config, const char *newname, const char *mntopts,
1512     nvlist_t *props, int flags)
1513 {
1514         zpool_handle_t *zhp;
1515         char *name;
1516         uint64_t state;
1517         uint64_t version;
1518
1519         verify(nvlist_lookup_string(config, ZPOOL_CONFIG_POOL_NAME,
1520             &name) == 0);
1521
1522         verify(nvlist_lookup_uint64(config,
1523             ZPOOL_CONFIG_POOL_STATE, &state) == 0);
1524         verify(nvlist_lookup_uint64(config,
1525             ZPOOL_CONFIG_VERSION, &version) == 0);
1526         if (version > SPA_VERSION) {
1527                 (void) fprintf(stderr, gettext("cannot import '%s': pool "
1528                     "is formatted using a newer ZFS version\n"), name);
1529                 return (1);
1530         } else if (state != POOL_STATE_EXPORTED &&
1531             !(flags & ZFS_IMPORT_ANY_HOST)) {
1532                 uint64_t hostid;
1533
1534                 if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_HOSTID,
1535                     &hostid) == 0) {
1536                         if ((unsigned long)hostid != gethostid()) {
1537                                 char *hostname;
1538                                 uint64_t timestamp;
1539                                 time_t t;
1540
1541                                 verify(nvlist_lookup_string(config,
1542                                     ZPOOL_CONFIG_HOSTNAME, &hostname) == 0);
1543                                 verify(nvlist_lookup_uint64(config,
1544                                     ZPOOL_CONFIG_TIMESTAMP, &timestamp) == 0);
1545                                 t = timestamp;
1546                                 (void) fprintf(stderr, gettext("cannot import "
1547                                     "'%s': pool may be in use from other "
1548                                     "system, it was last accessed by %s "
1549                                     "(hostid: 0x%lx) on %s"), name, hostname,
1550                                     (unsigned long)hostid,
1551                                     asctime(localtime(&t)));
1552                                 (void) fprintf(stderr, gettext("use '-f' to "
1553                                     "import anyway\n"));
1554                                 return (1);
1555                         }
1556                 } else {
1557                         (void) fprintf(stderr, gettext("cannot import '%s': "
1558                             "pool may be in use from other system\n"), name);
1559                         (void) fprintf(stderr, gettext("use '-f' to import "
1560                             "anyway\n"));
1561                         return (1);
1562                 }
1563         }
1564
1565         if (zpool_import_props(g_zfs, config, newname, props, flags) != 0)
1566                 return (1);
1567
1568         if (newname != NULL)
1569                 name = (char *)newname;
1570
1571         if ((zhp = zpool_open_canfail(g_zfs, name)) == NULL)
1572                 return (1);
1573
1574         if (zpool_get_state(zhp) != POOL_STATE_UNAVAIL &&
1575             !(flags & ZFS_IMPORT_ONLY) &&
1576             zpool_enable_datasets(zhp, mntopts, 0) != 0) {
1577                 zpool_close(zhp);
1578                 return (1);
1579         }
1580
1581         zpool_close(zhp);
1582         return (0);
1583 }
1584
1585 /*
1586  * zpool import [-d dir] [-D]
1587  *       import [-o mntopts] [-o prop=value] ... [-R root] [-D]
1588  *              [-d dir | -c cachefile] [-f] -a
1589  *       import [-o mntopts] [-o prop=value] ... [-R root] [-D]
1590  *              [-d dir | -c cachefile] [-f] [-n] [-F] <pool | id> [newpool]
1591  *
1592  *       -c     Read pool information from a cachefile instead of searching
1593  *              devices.
1594  *
1595  *       -d     Scan in a specific directory, other than /dev/dsk.  More than
1596  *              one directory can be specified using multiple '-d' options.
1597  *
1598  *       -D     Scan for previously destroyed pools or import all or only
1599  *              specified destroyed pools.
1600  *
1601  *       -R     Temporarily import the pool, with all mountpoints relative to
1602  *              the given root.  The pool will remain exported when the machine
1603  *              is rebooted.
1604  *
1605  *       -V     Import even in the presence of faulted vdevs.  This is an
1606  *              intentionally undocumented option for testing purposes, and
1607  *              treats the pool configuration as complete, leaving any bad
1608  *              vdevs in the FAULTED state. In other words, it does verbatim
1609  *              import.
1610  *
1611  *       -f     Force import, even if it appears that the pool is active.
1612  *
1613  *       -F     Attempt rewind if necessary.
1614  *
1615  *       -n     See if rewind would work, but don't actually rewind.
1616  *
1617  *       -N     Import the pool but don't mount datasets.
1618  *
1619  *       -T     Specify a starting txg to use for import. This option is
1620  *              intentionally undocumented option for testing purposes.
1621  *
1622  *       -a     Import all pools found.
1623  *
1624  *       -o     Set property=value and/or temporary mount options (without '=').
1625  *
1626  * The import command scans for pools to import, and import pools based on pool
1627  * name and GUID.  The pool can also be renamed as part of the import process.
1628  */
1629 int
1630 zpool_do_import(int argc, char **argv)
1631 {
1632         char **searchdirs = NULL;
1633         int nsearch = 0;
1634         int c;
1635         int err = 0;
1636         nvlist_t *pools = NULL;
1637         boolean_t do_all = B_FALSE;
1638         boolean_t do_destroyed = B_FALSE;
1639         char *mntopts = NULL;
1640         nvpair_t *elem;
1641         nvlist_t *config;
1642         uint64_t searchguid = 0;
1643         char *searchname = NULL;
1644         char *propval;
1645         nvlist_t *found_config;
1646         nvlist_t *policy = NULL;
1647         nvlist_t *props = NULL;
1648         boolean_t first;
1649         int flags = ZFS_IMPORT_NORMAL;
1650         uint32_t rewind_policy = ZPOOL_NO_REWIND;
1651         boolean_t dryrun = B_FALSE;
1652         boolean_t do_rewind = B_FALSE;
1653         boolean_t xtreme_rewind = B_FALSE;
1654         uint64_t pool_state, txg = -1ULL;
1655         char *cachefile = NULL;
1656         importargs_t idata = { 0 };
1657         char *endptr;
1658
1659         /* check options */
1660         while ((c = getopt(argc, argv, ":aCc:d:DEfFmnNo:rR:T:VX")) != -1) {
1661                 switch (c) {
1662                 case 'a':
1663                         do_all = B_TRUE;
1664                         break;
1665                 case 'c':
1666                         cachefile = optarg;
1667                         break;
1668                 case 'd':
1669                         if (searchdirs == NULL) {
1670                                 searchdirs = safe_malloc(sizeof (char *));
1671                         } else {
1672                                 char **tmp = safe_malloc((nsearch + 1) *
1673                                     sizeof (char *));
1674                                 bcopy(searchdirs, tmp, nsearch *
1675                                     sizeof (char *));
1676                                 free(searchdirs);
1677                                 searchdirs = tmp;
1678                         }
1679                         searchdirs[nsearch++] = optarg;
1680                         break;
1681                 case 'D':
1682                         do_destroyed = B_TRUE;
1683                         break;
1684                 case 'f':
1685                         flags |= ZFS_IMPORT_ANY_HOST;
1686                         break;
1687                 case 'F':
1688                         do_rewind = B_TRUE;
1689                         break;
1690                 case 'm':
1691                         flags |= ZFS_IMPORT_MISSING_LOG;
1692                         break;
1693                 case 'n':
1694                         dryrun = B_TRUE;
1695                         break;
1696                 case 'N':
1697                         flags |= ZFS_IMPORT_ONLY;
1698                         break;
1699                 case 'o':
1700                         if ((propval = strchr(optarg, '=')) != NULL) {
1701                                 *propval = '\0';
1702                                 propval++;
1703                                 if (add_prop_list(optarg, propval,
1704                                     &props, B_TRUE))
1705                                         goto error;
1706                         } else {
1707                                 mntopts = optarg;
1708                         }
1709                         break;
1710                 case 'R':
1711                         if (add_prop_list(zpool_prop_to_name(
1712                             ZPOOL_PROP_ALTROOT), optarg, &props, B_TRUE))
1713                                 goto error;
1714                         if (nvlist_lookup_string(props,
1715                             zpool_prop_to_name(ZPOOL_PROP_CACHEFILE),
1716                             &propval) == 0)
1717                                 break;
1718                         if (add_prop_list(zpool_prop_to_name(
1719                             ZPOOL_PROP_CACHEFILE), "none", &props, B_TRUE))
1720                                 goto error;
1721                         break;
1722                 case 'T':
1723                         errno = 0;
1724                         txg = strtoull(optarg, &endptr, 10);
1725                         if (errno != 0 || *endptr != '\0') {
1726                                 (void) fprintf(stderr,
1727                                     gettext("invalid txg value\n"));
1728                                 usage(B_FALSE);
1729                         }
1730                         rewind_policy = ZPOOL_DO_REWIND | ZPOOL_EXTREME_REWIND;
1731                         break;
1732                 case 'V':
1733                         flags |= ZFS_IMPORT_VERBATIM;
1734                         break;
1735                 case 'X':
1736                         xtreme_rewind = B_TRUE;
1737                         break;
1738                 case ':':
1739                         (void) fprintf(stderr, gettext("missing argument for "
1740                             "'%c' option\n"), optopt);
1741                         usage(B_FALSE);
1742                         break;
1743                 case '?':
1744                         (void) fprintf(stderr, gettext("invalid option '%c'\n"),
1745                             optopt);
1746                         usage(B_FALSE);
1747                 }
1748         }
1749
1750         argc -= optind;
1751         argv += optind;
1752
1753         if (cachefile && nsearch != 0) {
1754                 (void) fprintf(stderr, gettext("-c is incompatible with -d\n"));
1755                 usage(B_FALSE);
1756         }
1757
1758         if ((dryrun || xtreme_rewind) && !do_rewind) {
1759                 (void) fprintf(stderr,
1760                     gettext("-n or -X only meaningful with -F\n"));
1761                 usage(B_FALSE);
1762         }
1763         if (dryrun)
1764                 rewind_policy = ZPOOL_TRY_REWIND;
1765         else if (do_rewind)
1766                 rewind_policy = ZPOOL_DO_REWIND;
1767         if (xtreme_rewind)
1768                 rewind_policy |= ZPOOL_EXTREME_REWIND;
1769
1770         /* In the future, we can capture further policy and include it here */
1771         if (nvlist_alloc(&policy, NV_UNIQUE_NAME, 0) != 0 ||
1772             nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, txg) != 0 ||
1773             nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind_policy) != 0)
1774                 goto error;
1775
1776         if (searchdirs == NULL) {
1777                 searchdirs = safe_malloc(sizeof (char *));
1778                 searchdirs[0] = "/dev/dsk";
1779                 nsearch = 1;
1780         }
1781
1782         /* check argument count */
1783         if (do_all) {
1784                 if (argc != 0) {
1785                         (void) fprintf(stderr, gettext("too many arguments\n"));
1786                         usage(B_FALSE);
1787                 }
1788         } else {
1789                 if (argc > 2) {
1790                         (void) fprintf(stderr, gettext("too many arguments\n"));
1791                         usage(B_FALSE);
1792                 }
1793
1794                 /*
1795                  * Check for the SYS_CONFIG privilege.  We do this explicitly
1796                  * here because otherwise any attempt to discover pools will
1797                  * silently fail.
1798                  */
1799                 if (argc == 0 && !priv_ineffect(PRIV_SYS_CONFIG)) {
1800                         (void) fprintf(stderr, gettext("cannot "
1801                             "discover pools: permission denied\n"));
1802                         free(searchdirs);
1803                         nvlist_free(policy);
1804                         return (1);
1805                 }
1806         }
1807
1808         /*
1809          * Depending on the arguments given, we do one of the following:
1810          *
1811          *      <none>  Iterate through all pools and display information about
1812          *              each one.
1813          *
1814          *      -a      Iterate through all pools and try to import each one.
1815          *
1816          *      <id>    Find the pool that corresponds to the given GUID/pool
1817          *              name and import that one.
1818          *
1819          *      -D      Above options applies only to destroyed pools.
1820          */
1821         if (argc != 0) {
1822                 char *endptr;
1823
1824                 errno = 0;
1825                 searchguid = strtoull(argv[0], &endptr, 10);
1826                 if (errno != 0 || *endptr != '\0')
1827                         searchname = argv[0];
1828                 found_config = NULL;
1829
1830                 /*
1831                  * User specified a name or guid.  Ensure it's unique.
1832                  */
1833                 idata.unique = B_TRUE;
1834         }
1835
1836
1837         idata.path = searchdirs;
1838         idata.paths = nsearch;
1839         idata.poolname = searchname;
1840         idata.guid = searchguid;
1841         idata.cachefile = cachefile;
1842
1843         pools = zpool_search_import(g_zfs, &idata);
1844
1845         if (pools != NULL && idata.exists &&
1846             (argc == 1 || strcmp(argv[0], argv[1]) == 0)) {
1847                 (void) fprintf(stderr, gettext("cannot import '%s': "
1848                     "a pool with that name already exists\n"),
1849                     argv[0]);
1850                 (void) fprintf(stderr, gettext("use the form '%s "
1851                     "<pool | id> <newpool>' to give it a new name\n"),
1852                     "zpool import");
1853                 err = 1;
1854         } else if (pools == NULL && idata.exists) {
1855                 (void) fprintf(stderr, gettext("cannot import '%s': "
1856                     "a pool with that name is already created/imported,\n"),
1857                     argv[0]);
1858                 (void) fprintf(stderr, gettext("and no additional pools "
1859                     "with that name were found\n"));
1860                 err = 1;
1861         } else if (pools == NULL) {
1862                 if (argc != 0) {
1863                         (void) fprintf(stderr, gettext("cannot import '%s': "
1864                             "no such pool available\n"), argv[0]);
1865                 }
1866                 err = 1;
1867         }
1868
1869         if (err == 1) {
1870                 free(searchdirs);
1871                 nvlist_free(policy);
1872                 return (1);
1873         }
1874
1875         /*
1876          * At this point we have a list of import candidate configs. Even if
1877          * we were searching by pool name or guid, we still need to
1878          * post-process the list to deal with pool state and possible
1879          * duplicate names.
1880          */
1881         err = 0;
1882         elem = NULL;
1883         first = B_TRUE;
1884         while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) {
1885
1886                 verify(nvpair_value_nvlist(elem, &config) == 0);
1887
1888                 verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_STATE,
1889                     &pool_state) == 0);
1890                 if (!do_destroyed && pool_state == POOL_STATE_DESTROYED)
1891                         continue;
1892                 if (do_destroyed && pool_state != POOL_STATE_DESTROYED)
1893                         continue;
1894
1895                 verify(nvlist_add_nvlist(config, ZPOOL_REWIND_POLICY,
1896                     policy) == 0);
1897
1898                 if (argc == 0) {
1899                         if (first)
1900                                 first = B_FALSE;
1901                         else if (!do_all)
1902                                 (void) printf("\n");
1903
1904                         if (do_all) {
1905                                 err |= do_import(config, NULL, mntopts,
1906                                     props, flags);
1907                         } else {
1908                                 show_import(config);
1909                         }
1910                 } else if (searchname != NULL) {
1911                         char *name;
1912
1913                         /*
1914                          * We are searching for a pool based on name.
1915                          */
1916                         verify(nvlist_lookup_string(config,
1917                             ZPOOL_CONFIG_POOL_NAME, &name) == 0);
1918
1919                         if (strcmp(name, searchname) == 0) {
1920                                 if (found_config != NULL) {
1921                                         (void) fprintf(stderr, gettext(
1922                                             "cannot import '%s': more than "
1923                                             "one matching pool\n"), searchname);
1924                                         (void) fprintf(stderr, gettext(
1925                                             "import by numeric ID instead\n"));
1926                                         err = B_TRUE;
1927                                 }
1928                                 found_config = config;
1929                         }
1930                 } else {
1931                         uint64_t guid;
1932
1933                         /*
1934                          * Search for a pool by guid.
1935                          */
1936                         verify(nvlist_lookup_uint64(config,
1937                             ZPOOL_CONFIG_POOL_GUID, &guid) == 0);
1938
1939                         if (guid == searchguid)
1940                                 found_config = config;
1941                 }
1942         }
1943
1944         /*
1945          * If we were searching for a specific pool, verify that we found a
1946          * pool, and then do the import.
1947          */
1948         if (argc != 0 && err == 0) {
1949                 if (found_config == NULL) {
1950                         (void) fprintf(stderr, gettext("cannot import '%s': "
1951                             "no such pool available\n"), argv[0]);
1952                         err = B_TRUE;
1953                 } else {
1954                         err |= do_import(found_config, argc == 1 ? NULL :
1955                             argv[1], mntopts, props, flags);
1956                 }
1957         }
1958
1959         /*
1960          * If we were just looking for pools, report an error if none were
1961          * found.
1962          */
1963         if (argc == 0 && first)
1964                 (void) fprintf(stderr,
1965                     gettext("no pools available to import\n"));
1966
1967 error:
1968         nvlist_free(props);
1969         nvlist_free(pools);
1970         nvlist_free(policy);
1971         free(searchdirs);
1972
1973         return (err ? 1 : 0);
1974 }
1975
1976 typedef struct iostat_cbdata {
1977         zpool_list_t *cb_list;
1978         int cb_verbose;
1979         int cb_iteration;
1980         int cb_namewidth;
1981 } iostat_cbdata_t;
1982
1983 static void
1984 print_iostat_separator(iostat_cbdata_t *cb)
1985 {
1986         int i = 0;
1987
1988         for (i = 0; i < cb->cb_namewidth; i++)
1989                 (void) printf("-");
1990         (void) printf("  -----  -----  -----  -----  -----  -----\n");
1991 }
1992
1993 static void
1994 print_iostat_header(iostat_cbdata_t *cb)
1995 {
1996         (void) printf("%*s     capacity     operations    bandwidth\n",
1997             cb->cb_namewidth, "");
1998         (void) printf("%-*s  alloc   free   read  write   read  write\n",
1999             cb->cb_namewidth, "pool");
2000         print_iostat_separator(cb);
2001 }
2002
2003 /*
2004  * Display a single statistic.
2005  */
2006 static void
2007 print_one_stat(uint64_t value)
2008 {
2009         char buf[64];
2010
2011         zfs_nicenum(value, buf, sizeof (buf));
2012         (void) printf("  %5s", buf);
2013 }
2014
2015 /*
2016  * Print out all the statistics for the given vdev.  This can either be the
2017  * toplevel configuration, or called recursively.  If 'name' is NULL, then this
2018  * is a verbose output, and we don't want to display the toplevel pool stats.
2019  */
2020 void
2021 print_vdev_stats(zpool_handle_t *zhp, const char *name, nvlist_t *oldnv,
2022     nvlist_t *newnv, iostat_cbdata_t *cb, int depth)
2023 {
2024         nvlist_t **oldchild, **newchild;
2025         uint_t c, children;
2026         vdev_stat_t *oldvs, *newvs;
2027         vdev_stat_t zerovs = { 0 };
2028         uint64_t tdelta;
2029         double scale;
2030         char *vname;
2031
2032         if (oldnv != NULL) {
2033                 verify(nvlist_lookup_uint64_array(oldnv,
2034                     ZPOOL_CONFIG_VDEV_STATS, (uint64_t **)&oldvs, &c) == 0);
2035         } else {
2036                 oldvs = &zerovs;
2037         }
2038
2039         verify(nvlist_lookup_uint64_array(newnv, ZPOOL_CONFIG_VDEV_STATS,
2040             (uint64_t **)&newvs, &c) == 0);
2041
2042         if (strlen(name) + depth > cb->cb_namewidth)
2043                 (void) printf("%*s%s", depth, "", name);
2044         else
2045                 (void) printf("%*s%s%*s", depth, "", name,
2046                     (int)(cb->cb_namewidth - strlen(name) - depth), "");
2047
2048         tdelta = newvs->vs_timestamp - oldvs->vs_timestamp;
2049
2050         if (tdelta == 0)
2051                 scale = 1.0;
2052         else
2053                 scale = (double)NANOSEC / tdelta;
2054
2055         /* only toplevel vdevs have capacity stats */
2056         if (newvs->vs_space == 0) {
2057                 (void) printf("      -      -");
2058         } else {
2059                 print_one_stat(newvs->vs_alloc);
2060                 print_one_stat(newvs->vs_space - newvs->vs_alloc);
2061         }
2062
2063         print_one_stat((uint64_t)(scale * (newvs->vs_ops[ZIO_TYPE_READ] -
2064             oldvs->vs_ops[ZIO_TYPE_READ])));
2065
2066         print_one_stat((uint64_t)(scale * (newvs->vs_ops[ZIO_TYPE_WRITE] -
2067             oldvs->vs_ops[ZIO_TYPE_WRITE])));
2068
2069         print_one_stat((uint64_t)(scale * (newvs->vs_bytes[ZIO_TYPE_READ] -
2070             oldvs->vs_bytes[ZIO_TYPE_READ])));
2071
2072         print_one_stat((uint64_t)(scale * (newvs->vs_bytes[ZIO_TYPE_WRITE] -
2073             oldvs->vs_bytes[ZIO_TYPE_WRITE])));
2074
2075         (void) printf("\n");
2076
2077         if (!cb->cb_verbose)
2078                 return;
2079
2080         if (nvlist_lookup_nvlist_array(newnv, ZPOOL_CONFIG_CHILDREN,
2081             &newchild, &children) != 0)
2082                 return;
2083
2084         if (oldnv && nvlist_lookup_nvlist_array(oldnv, ZPOOL_CONFIG_CHILDREN,
2085             &oldchild, &c) != 0)
2086                 return;
2087
2088         for (c = 0; c < children; c++) {
2089                 uint64_t ishole = B_FALSE;
2090
2091                 if (nvlist_lookup_uint64(newchild[c],
2092                     ZPOOL_CONFIG_IS_HOLE, &ishole) == 0 && ishole)
2093                         continue;
2094
2095                 vname = zpool_vdev_name(g_zfs, zhp, newchild[c], B_FALSE);
2096                 print_vdev_stats(zhp, vname, oldnv ? oldchild[c] : NULL,
2097                     newchild[c], cb, depth + 2);
2098                 free(vname);
2099         }
2100
2101         /*
2102          * Include level 2 ARC devices in iostat output
2103          */
2104         if (nvlist_lookup_nvlist_array(newnv, ZPOOL_CONFIG_L2CACHE,
2105             &newchild, &children) != 0)
2106                 return;
2107
2108         if (oldnv && nvlist_lookup_nvlist_array(oldnv, ZPOOL_CONFIG_L2CACHE,
2109             &oldchild, &c) != 0)
2110                 return;
2111
2112         if (children > 0) {
2113                 (void) printf("%-*s      -      -      -      -      -      "
2114                     "-\n", cb->cb_namewidth, "cache");
2115                 for (c = 0; c < children; c++) {
2116                         vname = zpool_vdev_name(g_zfs, zhp, newchild[c],
2117                             B_FALSE);
2118                         print_vdev_stats(zhp, vname, oldnv ? oldchild[c] : NULL,
2119                             newchild[c], cb, depth + 2);
2120                         free(vname);
2121                 }
2122         }
2123 }
2124
2125 static int
2126 refresh_iostat(zpool_handle_t *zhp, void *data)
2127 {
2128         iostat_cbdata_t *cb = data;
2129         boolean_t missing;
2130
2131         /*
2132          * If the pool has disappeared, remove it from the list and continue.
2133          */
2134         if (zpool_refresh_stats(zhp, &missing) != 0)
2135                 return (-1);
2136
2137         if (missing)
2138                 pool_list_remove(cb->cb_list, zhp);
2139
2140         return (0);
2141 }
2142
2143 /*
2144  * Callback to print out the iostats for the given pool.
2145  */
2146 int
2147 print_iostat(zpool_handle_t *zhp, void *data)
2148 {
2149         iostat_cbdata_t *cb = data;
2150         nvlist_t *oldconfig, *newconfig;
2151         nvlist_t *oldnvroot, *newnvroot;
2152
2153         newconfig = zpool_get_config(zhp, &oldconfig);
2154
2155         if (cb->cb_iteration == 1)
2156                 oldconfig = NULL;
2157
2158         verify(nvlist_lookup_nvlist(newconfig, ZPOOL_CONFIG_VDEV_TREE,
2159             &newnvroot) == 0);
2160
2161         if (oldconfig == NULL)
2162                 oldnvroot = NULL;
2163         else
2164                 verify(nvlist_lookup_nvlist(oldconfig, ZPOOL_CONFIG_VDEV_TREE,
2165                     &oldnvroot) == 0);
2166
2167         /*
2168          * Print out the statistics for the pool.
2169          */
2170         print_vdev_stats(zhp, zpool_get_name(zhp), oldnvroot, newnvroot, cb, 0);
2171
2172         if (cb->cb_verbose)
2173                 print_iostat_separator(cb);
2174
2175         return (0);
2176 }
2177
2178 int
2179 get_namewidth(zpool_handle_t *zhp, void *data)
2180 {
2181         iostat_cbdata_t *cb = data;
2182         nvlist_t *config, *nvroot;
2183
2184         if ((config = zpool_get_config(zhp, NULL)) != NULL) {
2185                 verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
2186                     &nvroot) == 0);
2187                 if (!cb->cb_verbose)
2188                         cb->cb_namewidth = strlen(zpool_get_name(zhp));
2189                 else
2190                         cb->cb_namewidth = max_width(zhp, nvroot, 0, 0);
2191         }
2192
2193         /*
2194          * The width must fall into the range [10,38].  The upper limit is the
2195          * maximum we can have and still fit in 80 columns.
2196          */
2197         if (cb->cb_namewidth < 10)
2198                 cb->cb_namewidth = 10;
2199         if (cb->cb_namewidth > 38)
2200                 cb->cb_namewidth = 38;
2201
2202         return (0);
2203 }
2204
2205 /*
2206  * Parse the input string, get the 'interval' and 'count' value if there is one.
2207  */
2208 static void
2209 get_interval_count(int *argcp, char **argv, unsigned long *iv,
2210     unsigned long *cnt)
2211 {
2212         unsigned long interval = 0, count = 0;
2213         int argc = *argcp;
2214
2215         /*
2216          * Determine if the last argument is an integer or a pool name
2217          */
2218         if (argc > 0 && isdigit(argv[argc - 1][0])) {
2219                 char *end;
2220
2221                 errno = 0;
2222                 interval = strtoul(argv[argc - 1], &end, 10);
2223
2224                 if (*end == '\0' && errno == 0) {
2225                         if (interval == 0) {
2226                                 (void) fprintf(stderr, gettext("interval "
2227                                     "cannot be zero\n"));
2228                                 usage(B_FALSE);
2229                         }
2230                         /*
2231                          * Ignore the last parameter
2232                          */
2233                         argc--;
2234                 } else {
2235                         /*
2236                          * If this is not a valid number, just plow on.  The
2237                          * user will get a more informative error message later
2238                          * on.
2239                          */
2240                         interval = 0;
2241                 }
2242         }
2243
2244         /*
2245          * If the last argument is also an integer, then we have both a count
2246          * and an interval.
2247          */
2248         if (argc > 0 && isdigit(argv[argc - 1][0])) {
2249                 char *end;
2250
2251                 errno = 0;
2252                 count = interval;
2253                 interval = strtoul(argv[argc - 1], &end, 10);
2254
2255                 if (*end == '\0' && errno == 0) {
2256                         if (interval == 0) {
2257                                 (void) fprintf(stderr, gettext("interval "
2258                                     "cannot be zero\n"));
2259                                 usage(B_FALSE);
2260                         }
2261
2262                         /*
2263                          * Ignore the last parameter
2264                          */
2265                         argc--;
2266                 } else {
2267                         interval = 0;
2268                 }
2269         }
2270
2271         *iv = interval;
2272         *cnt = count;
2273         *argcp = argc;
2274 }
2275
2276 static void
2277 get_timestamp_arg(char c)
2278 {
2279         if (c == 'u')
2280                 timestamp_fmt = UDATE;
2281         else if (c == 'd')
2282                 timestamp_fmt = DDATE;
2283         else
2284                 usage(B_FALSE);
2285 }
2286
2287 /*
2288  * zpool iostat [-v] [-T d|u] [pool] ... [interval [count]]
2289  *
2290  *      -v      Display statistics for individual vdevs
2291  *      -T      Display a timestamp in date(1) or Unix format
2292  *
2293  * This command can be tricky because we want to be able to deal with pool
2294  * creation/destruction as well as vdev configuration changes.  The bulk of this
2295  * processing is handled by the pool_list_* routines in zpool_iter.c.  We rely
2296  * on pool_list_update() to detect the addition of new pools.  Configuration
2297  * changes are all handled within libzfs.
2298  */
2299 int
2300 zpool_do_iostat(int argc, char **argv)
2301 {
2302         int c;
2303         int ret;
2304         int npools;
2305         unsigned long interval = 0, count = 0;
2306         zpool_list_t *list;
2307         boolean_t verbose = B_FALSE;
2308         iostat_cbdata_t cb;
2309
2310         /* check options */
2311         while ((c = getopt(argc, argv, "T:v")) != -1) {
2312                 switch (c) {
2313                 case 'T':
2314                         get_timestamp_arg(*optarg);
2315                         break;
2316                 case 'v':
2317                         verbose = B_TRUE;
2318                         break;
2319                 case '?':
2320                         (void) fprintf(stderr, gettext("invalid option '%c'\n"),
2321                             optopt);
2322                         usage(B_FALSE);
2323                 }
2324         }
2325
2326         argc -= optind;
2327         argv += optind;
2328
2329         get_interval_count(&argc, argv, &interval, &count);
2330
2331         /*
2332          * Construct the list of all interesting pools.
2333          */
2334         ret = 0;
2335         if ((list = pool_list_get(argc, argv, NULL, &ret)) == NULL)
2336                 return (1);
2337
2338         if (pool_list_count(list) == 0 && argc != 0) {
2339                 pool_list_free(list);
2340                 return (1);
2341         }
2342
2343         if (pool_list_count(list) == 0 && interval == 0) {
2344                 pool_list_free(list);
2345                 (void) fprintf(stderr, gettext("no pools available\n"));
2346                 return (1);
2347         }
2348
2349         /*
2350          * Enter the main iostat loop.
2351          */
2352         cb.cb_list = list;
2353         cb.cb_verbose = verbose;
2354         cb.cb_iteration = 0;
2355         cb.cb_namewidth = 0;
2356
2357         for (;;) {
2358                 pool_list_update(list);
2359
2360                 if ((npools = pool_list_count(list)) == 0)
2361                         break;
2362
2363                 /*
2364                  * Refresh all statistics.  This is done as an explicit step
2365                  * before calculating the maximum name width, so that any
2366                  * configuration changes are properly accounted for.
2367                  */
2368                 (void) pool_list_iter(list, B_FALSE, refresh_iostat, &cb);
2369
2370                 /*
2371                  * Iterate over all pools to determine the maximum width
2372                  * for the pool / device name column across all pools.
2373                  */
2374                 cb.cb_namewidth = 0;
2375                 (void) pool_list_iter(list, B_FALSE, get_namewidth, &cb);
2376
2377                 if (timestamp_fmt != NODATE)
2378                         print_timestamp(timestamp_fmt);
2379
2380                 /*
2381                  * If it's the first time, or verbose mode, print the header.
2382                  */
2383                 if (++cb.cb_iteration == 1 || verbose)
2384                         print_iostat_header(&cb);
2385
2386                 (void) pool_list_iter(list, B_FALSE, print_iostat, &cb);
2387
2388                 /*
2389                  * If there's more than one pool, and we're not in verbose mode
2390                  * (which prints a separator for us), then print a separator.
2391                  */
2392                 if (npools > 1 && !verbose)
2393                         print_iostat_separator(&cb);
2394
2395                 if (verbose)
2396                         (void) printf("\n");
2397
2398                 /*
2399                  * Flush the output so that redirection to a file isn't buffered
2400                  * indefinitely.
2401                  */
2402                 (void) fflush(stdout);
2403
2404                 if (interval == 0)
2405                         break;
2406
2407                 if (count != 0 && --count == 0)
2408                         break;
2409
2410                 (void) sleep(interval);
2411         }
2412
2413         pool_list_free(list);
2414
2415         return (ret);
2416 }
2417
2418 typedef struct list_cbdata {
2419         boolean_t       cb_scripted;
2420         boolean_t       cb_first;
2421         zprop_list_t    *cb_proplist;
2422 } list_cbdata_t;
2423
2424 /*
2425  * Given a list of columns to display, output appropriate headers for each one.
2426  */
2427 static void
2428 print_header(zprop_list_t *pl)
2429 {
2430         const char *header;
2431         boolean_t first = B_TRUE;
2432         boolean_t right_justify;
2433
2434         for (; pl != NULL; pl = pl->pl_next) {
2435                 if (pl->pl_prop == ZPROP_INVAL)
2436                         continue;
2437
2438                 if (!first)
2439                         (void) printf("  ");
2440                 else
2441                         first = B_FALSE;
2442
2443                 header = zpool_prop_column_name(pl->pl_prop);
2444                 right_justify = zpool_prop_align_right(pl->pl_prop);
2445
2446                 if (pl->pl_next == NULL && !right_justify)
2447                         (void) printf("%s", header);
2448                 else if (right_justify)
2449                         (void) printf("%*s", (int)pl->pl_width, header);
2450                 else
2451                         (void) printf("%-*s", (int)pl->pl_width, header);
2452         }
2453
2454         (void) printf("\n");
2455 }
2456
2457 /*
2458  * Given a pool and a list of properties, print out all the properties according
2459  * to the described layout.
2460  */
2461 static void
2462 print_pool(zpool_handle_t *zhp, zprop_list_t *pl, int scripted)
2463 {
2464         boolean_t first = B_TRUE;
2465         char property[ZPOOL_MAXPROPLEN];
2466         char *propstr;
2467         boolean_t right_justify;
2468         int width;
2469
2470         for (; pl != NULL; pl = pl->pl_next) {
2471                 if (!first) {
2472                         if (scripted)
2473                                 (void) printf("\t");
2474                         else
2475                                 (void) printf("  ");
2476                 } else {
2477                         first = B_FALSE;
2478                 }
2479
2480                 right_justify = B_FALSE;
2481                 if (pl->pl_prop != ZPROP_INVAL) {
2482                         if (zpool_get_prop(zhp, pl->pl_prop, property,
2483                             sizeof (property), NULL) != 0)
2484                                 propstr = "-";
2485                         else
2486                                 propstr = property;
2487
2488                         right_justify = zpool_prop_align_right(pl->pl_prop);
2489                 } else {
2490                         propstr = "-";
2491                 }
2492
2493                 width = pl->pl_width;
2494
2495                 /*
2496                  * If this is being called in scripted mode, or if this is the
2497                  * last column and it is left-justified, don't include a width
2498                  * format specifier.
2499                  */
2500                 if (scripted || (pl->pl_next == NULL && !right_justify))
2501                         (void) printf("%s", propstr);
2502                 else if (right_justify)
2503                         (void) printf("%*s", width, propstr);
2504                 else
2505                         (void) printf("%-*s", width, propstr);
2506         }
2507
2508         (void) printf("\n");
2509 }
2510
2511 /*
2512  * Generic callback function to list a pool.
2513  */
2514 int
2515 list_callback(zpool_handle_t *zhp, void *data)
2516 {
2517         list_cbdata_t *cbp = data;
2518
2519         if (cbp->cb_first) {
2520                 if (!cbp->cb_scripted)
2521                         print_header(cbp->cb_proplist);
2522                 cbp->cb_first = B_FALSE;
2523         }
2524
2525         print_pool(zhp, cbp->cb_proplist, cbp->cb_scripted);
2526
2527         return (0);
2528 }
2529
2530 /*
2531  * zpool list [-H] [-o prop[,prop]*] [-T d|u] [pool] ... [interval [count]]
2532  *
2533  *      -H      Scripted mode.  Don't display headers, and separate properties
2534  *              by a single tab.
2535  *      -o      List of properties to display.  Defaults to
2536  *              "name,size,allocated,free,capacity,health,altroot"
2537  *      -T      Display a timestamp in date(1) or Unix format
2538  *
2539  * List all pools in the system, whether or not they're healthy.  Output space
2540  * statistics for each one, as well as health status summary.
2541  */
2542 int
2543 zpool_do_list(int argc, char **argv)
2544 {
2545         int c;
2546         int ret;
2547         list_cbdata_t cb = { 0 };
2548         static char default_props[] =
2549             "name,size,allocated,free,capacity,dedupratio,health,altroot";
2550         char *props = default_props;
2551         unsigned long interval = 0, count = 0;
2552
2553         /* check options */
2554         while ((c = getopt(argc, argv, ":Ho:T:")) != -1) {
2555                 switch (c) {
2556                 case 'H':
2557                         cb.cb_scripted = B_TRUE;
2558                         break;
2559                 case 'o':
2560                         props = optarg;
2561                         break;
2562                 case 'T':
2563                         get_timestamp_arg(*optarg);
2564                         break;
2565                 case ':':
2566                         (void) fprintf(stderr, gettext("missing argument for "
2567                             "'%c' option\n"), optopt);
2568                         usage(B_FALSE);
2569                         break;
2570                 case '?':
2571                         (void) fprintf(stderr, gettext("invalid option '%c'\n"),
2572                             optopt);
2573                         usage(B_FALSE);
2574                 }
2575         }
2576
2577         argc -= optind;
2578         argv += optind;
2579
2580         get_interval_count(&argc, argv, &interval, &count);
2581
2582         if (zprop_get_list(g_zfs, props, &cb.cb_proplist, ZFS_TYPE_POOL) != 0)
2583                 usage(B_FALSE);
2584
2585         cb.cb_first = B_TRUE;
2586
2587         for (;;) {
2588
2589                 if (timestamp_fmt != NODATE)
2590                         print_timestamp(timestamp_fmt);
2591
2592                 ret = for_each_pool(argc, argv, B_TRUE, &cb.cb_proplist,
2593                     list_callback, &cb);
2594
2595                 if (argc == 0 && cb.cb_first && !cb.cb_scripted) {
2596                         (void) printf(gettext("no pools available\n"));
2597                         zprop_free_list(cb.cb_proplist);
2598                         return (0);
2599                 }
2600
2601                 if (interval == 0)
2602                         break;
2603
2604                 if (count != 0 && --count == 0)
2605                         break;
2606
2607                 (void) sleep(interval);
2608         }
2609
2610         zprop_free_list(cb.cb_proplist);
2611         return (ret);
2612 }
2613
2614 static int
2615 zpool_do_attach_or_replace(int argc, char **argv, int replacing)
2616 {
2617         boolean_t force = B_FALSE;
2618         int c;
2619         nvlist_t *nvroot;
2620         char *poolname, *old_disk, *new_disk;
2621         zpool_handle_t *zhp;
2622         int ret;
2623
2624         /* check options */
2625         while ((c = getopt(argc, argv, "f")) != -1) {
2626                 switch (c) {
2627                 case 'f':
2628                         force = B_TRUE;
2629                         break;
2630                 case '?':
2631                         (void) fprintf(stderr, gettext("invalid option '%c'\n"),
2632                             optopt);
2633                         usage(B_FALSE);
2634                 }
2635         }
2636
2637         argc -= optind;
2638         argv += optind;
2639
2640         /* get pool name and check number of arguments */
2641         if (argc < 1) {
2642                 (void) fprintf(stderr, gettext("missing pool name argument\n"));
2643                 usage(B_FALSE);
2644         }
2645
2646         poolname = argv[0];
2647
2648         if (argc < 2) {
2649                 (void) fprintf(stderr,
2650                     gettext("missing <device> specification\n"));
2651                 usage(B_FALSE);
2652         }
2653
2654         old_disk = argv[1];
2655
2656         if (argc < 3) {
2657                 if (!replacing) {
2658                         (void) fprintf(stderr,
2659                             gettext("missing <new_device> specification\n"));
2660                         usage(B_FALSE);
2661                 }
2662                 new_disk = old_disk;
2663                 argc -= 1;
2664                 argv += 1;
2665         } else {
2666                 new_disk = argv[2];
2667                 argc -= 2;
2668                 argv += 2;
2669         }
2670
2671         if (argc > 1) {
2672                 (void) fprintf(stderr, gettext("too many arguments\n"));
2673                 usage(B_FALSE);
2674         }
2675
2676         if ((zhp = zpool_open(g_zfs, poolname)) == NULL)
2677                 return (1);
2678
2679         if (zpool_get_config(zhp, NULL) == NULL) {
2680                 (void) fprintf(stderr, gettext("pool '%s' is unavailable\n"),
2681                     poolname);
2682                 zpool_close(zhp);
2683                 return (1);
2684         }
2685
2686         nvroot = make_root_vdev(zhp, force, B_FALSE, replacing, B_FALSE,
2687             argc, argv);
2688         if (nvroot == NULL) {
2689                 zpool_close(zhp);
2690                 return (1);
2691         }
2692
2693         ret = zpool_vdev_attach(zhp, old_disk, new_disk, nvroot, replacing);
2694
2695         nvlist_free(nvroot);
2696         zpool_close(zhp);
2697
2698         return (ret);
2699 }
2700
2701 /*
2702  * zpool replace [-f] <pool> <device> <new_device>
2703  *
2704  *      -f      Force attach, even if <new_device> appears to be in use.
2705  *
2706  * Replace <device> with <new_device>.
2707  */
2708 /* ARGSUSED */
2709 int
2710 zpool_do_replace(int argc, char **argv)
2711 {
2712         return (zpool_do_attach_or_replace(argc, argv, B_TRUE));
2713 }
2714
2715 /*
2716  * zpool attach [-f] <pool> <device> <new_device>
2717  *
2718  *      -f      Force attach, even if <new_device> appears to be in use.
2719  *
2720  * Attach <new_device> to the mirror containing <device>.  If <device> is not
2721  * part of a mirror, then <device> will be transformed into a mirror of
2722  * <device> and <new_device>.  In either case, <new_device> will begin life
2723  * with a DTL of [0, now], and will immediately begin to resilver itself.
2724  */
2725 int
2726 zpool_do_attach(int argc, char **argv)
2727 {
2728         return (zpool_do_attach_or_replace(argc, argv, B_FALSE));
2729 }
2730
2731 /*
2732  * zpool detach [-f] <pool> <device>
2733  *
2734  *      -f      Force detach of <device>, even if DTLs argue against it
2735  *              (not supported yet)
2736  *
2737  * Detach a device from a mirror.  The operation will be refused if <device>
2738  * is the last device in the mirror, or if the DTLs indicate that this device
2739  * has the only valid copy of some data.
2740  */
2741 /* ARGSUSED */
2742 int
2743 zpool_do_detach(int argc, char **argv)
2744 {
2745         int c;
2746         char *poolname, *path;
2747         zpool_handle_t *zhp;
2748         int ret;
2749
2750         /* check options */
2751         while ((c = getopt(argc, argv, "f")) != -1) {
2752                 switch (c) {
2753                 case 'f':
2754                 case '?':
2755                         (void) fprintf(stderr, gettext("invalid option '%c'\n"),
2756                             optopt);
2757                         usage(B_FALSE);
2758                 }
2759         }
2760
2761         argc -= optind;
2762         argv += optind;
2763
2764         /* get pool name and check number of arguments */
2765         if (argc < 1) {
2766                 (void) fprintf(stderr, gettext("missing pool name argument\n"));
2767                 usage(B_FALSE);
2768         }
2769
2770         if (argc < 2) {
2771                 (void) fprintf(stderr,
2772                     gettext("missing <device> specification\n"));
2773                 usage(B_FALSE);
2774         }
2775
2776         poolname = argv[0];
2777         path = argv[1];
2778
2779         if ((zhp = zpool_open(g_zfs, poolname)) == NULL)
2780                 return (1);
2781
2782         ret = zpool_vdev_detach(zhp, path);
2783
2784         zpool_close(zhp);
2785
2786         return (ret);
2787 }
2788
2789 /*
2790  * zpool split [-n] [-o prop=val] ...
2791  *              [-o mntopt] ...
2792  *              [-R altroot] <pool> <newpool> [<device> ...]
2793  *
2794  *      -n      Do not split the pool, but display the resulting layout if
2795  *              it were to be split.
2796  *      -o      Set property=value, or set mount options.
2797  *      -R      Mount the split-off pool under an alternate root.
2798  *
2799  * Splits the named pool and gives it the new pool name.  Devices to be split
2800  * off may be listed, provided that no more than one device is specified
2801  * per top-level vdev mirror.  The newly split pool is left in an exported
2802  * state unless -R is specified.
2803  *
2804  * Restrictions: the top-level of the pool pool must only be made up of
2805  * mirrors; all devices in the pool must be healthy; no device may be
2806  * undergoing a resilvering operation.
2807  */
2808 int
2809 zpool_do_split(int argc, char **argv)
2810 {
2811         char *srcpool, *newpool, *propval;
2812         char *mntopts = NULL;
2813         splitflags_t flags;
2814         int c, ret = 0;
2815         zpool_handle_t *zhp;
2816         nvlist_t *config, *props = NULL;
2817
2818         flags.dryrun = B_FALSE;
2819         flags.import = B_FALSE;
2820
2821         /* check options */
2822         while ((c = getopt(argc, argv, ":R:no:")) != -1) {
2823                 switch (c) {
2824                 case 'R':
2825                         flags.import = B_TRUE;
2826                         if (add_prop_list(
2827                             zpool_prop_to_name(ZPOOL_PROP_ALTROOT), optarg,
2828                             &props, B_TRUE) != 0) {
2829                                 if (props)
2830                                         nvlist_free(props);
2831                                 usage(B_FALSE);
2832                         }
2833                         break;
2834                 case 'n':
2835                         flags.dryrun = B_TRUE;
2836                         break;
2837                 case 'o':
2838                         if ((propval = strchr(optarg, '=')) != NULL) {
2839                                 *propval = '\0';
2840                                 propval++;
2841                                 if (add_prop_list(optarg, propval,
2842                                     &props, B_TRUE) != 0) {
2843                                         if (props)
2844                                                 nvlist_free(props);
2845                                         usage(B_FALSE);
2846                                 }
2847                         } else {
2848                                 mntopts = optarg;
2849                         }
2850                         break;
2851                 case ':':
2852                         (void) fprintf(stderr, gettext("missing argument for "
2853                             "'%c' option\n"), optopt);
2854                         usage(B_FALSE);
2855                         break;
2856                 case '?':
2857                         (void) fprintf(stderr, gettext("invalid option '%c'\n"),
2858                             optopt);
2859                         usage(B_FALSE);
2860                         break;
2861                 }
2862         }
2863
2864         if (!flags.import && mntopts != NULL) {
2865                 (void) fprintf(stderr, gettext("setting mntopts is only "
2866                     "valid when importing the pool\n"));
2867                 usage(B_FALSE);
2868         }
2869
2870         argc -= optind;
2871         argv += optind;
2872
2873         if (argc < 1) {
2874                 (void) fprintf(stderr, gettext("Missing pool name\n"));
2875                 usage(B_FALSE);
2876         }
2877         if (argc < 2) {
2878                 (void) fprintf(stderr, gettext("Missing new pool name\n"));
2879                 usage(B_FALSE);
2880         }
2881
2882         srcpool = argv[0];
2883         newpool = argv[1];
2884
2885         argc -= 2;
2886         argv += 2;
2887
2888         if ((zhp = zpool_open(g_zfs, srcpool)) == NULL)
2889                 return (1);
2890
2891         config = split_mirror_vdev(zhp, newpool, props, flags, argc, argv);
2892         if (config == NULL) {
2893                 ret = 1;
2894         } else {
2895                 if (flags.dryrun) {
2896                         (void) printf(gettext("would create '%s' with the "
2897                             "following layout:\n\n"), newpool);
2898                         print_vdev_tree(NULL, newpool, config, 0, B_FALSE);
2899                 }
2900                 nvlist_free(config);
2901         }
2902
2903         zpool_close(zhp);
2904
2905         if (ret != 0 || flags.dryrun || !flags.import)
2906                 return (ret);
2907
2908         /*
2909          * The split was successful. Now we need to open the new
2910          * pool and import it.
2911          */
2912         if ((zhp = zpool_open_canfail(g_zfs, newpool)) == NULL)
2913                 return (1);
2914         if (zpool_get_state(zhp) != POOL_STATE_UNAVAIL &&
2915             zpool_enable_datasets(zhp, mntopts, 0) != 0) {
2916                 ret = 1;
2917                 (void) fprintf(stderr, gettext("Split was succssful, but "
2918                     "the datasets could not all be mounted\n"));
2919                 (void) fprintf(stderr, gettext("Try doing '%s' with a "
2920                     "different altroot\n"), "zpool import");
2921         }
2922         zpool_close(zhp);
2923
2924         return (ret);
2925 }
2926
2927
2928
2929 /*
2930  * zpool online <pool> <device> ...
2931  */
2932 int
2933 zpool_do_online(int argc, char **argv)
2934 {
2935         int c, i;
2936         char *poolname;
2937         zpool_handle_t *zhp;
2938         int ret = 0;
2939         vdev_state_t newstate;
2940         int flags = 0;
2941
2942         /* check options */
2943         while ((c = getopt(argc, argv, "et")) != -1) {
2944                 switch (c) {
2945                 case 'e':
2946                         flags |= ZFS_ONLINE_EXPAND;
2947                         break;
2948                 case 't':
2949                 case '?':
2950                         (void) fprintf(stderr, gettext("invalid option '%c'\n"),
2951                             optopt);
2952                         usage(B_FALSE);
2953                 }
2954         }
2955
2956         argc -= optind;
2957         argv += optind;
2958
2959         /* get pool name and check number of arguments */
2960         if (argc < 1) {
2961                 (void) fprintf(stderr, gettext("missing pool name\n"));
2962                 usage(B_FALSE);
2963         }
2964         if (argc < 2) {
2965                 (void) fprintf(stderr, gettext("missing device name\n"));
2966                 usage(B_FALSE);
2967         }
2968
2969         poolname = argv[0];
2970
2971         if ((zhp = zpool_open(g_zfs, poolname)) == NULL)
2972                 return (1);
2973
2974         for (i = 1; i < argc; i++) {
2975                 if (zpool_vdev_online(zhp, argv[i], flags, &newstate) == 0) {
2976                         if (newstate != VDEV_STATE_HEALTHY) {
2977                                 (void) printf(gettext("warning: device '%s' "
2978                                     "onlined, but remains in faulted state\n"),
2979                                     argv[i]);
2980                                 if (newstate == VDEV_STATE_FAULTED)
2981                                         (void) printf(gettext("use 'zpool "
2982                                             "clear' to restore a faulted "
2983                                             "device\n"));
2984                                 else
2985                                         (void) printf(gettext("use 'zpool "
2986                                             "replace' to replace devices "
2987                                             "that are no longer present\n"));
2988                         }
2989                 } else {
2990                         ret = 1;
2991                 }
2992         }
2993
2994         zpool_close(zhp);
2995
2996         return (ret);
2997 }
2998
2999 /*
3000  * zpool offline [-ft] <pool> <device> ...
3001  *
3002  *      -f      Force the device into the offline state, even if doing
3003  *              so would appear to compromise pool availability.
3004  *              (not supported yet)
3005  *
3006  *      -t      Only take the device off-line temporarily.  The offline
3007  *              state will not be persistent across reboots.
3008  */
3009 /* ARGSUSED */
3010 int
3011 zpool_do_offline(int argc, char **argv)
3012 {
3013         int c, i;
3014         char *poolname;
3015         zpool_handle_t *zhp;
3016         int ret = 0;
3017         boolean_t istmp = B_FALSE;
3018
3019         /* check options */
3020         while ((c = getopt(argc, argv, "ft")) != -1) {
3021                 switch (c) {
3022                 case 't':
3023                         istmp = B_TRUE;
3024                         break;
3025                 case 'f':
3026                 case '?':
3027                         (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3028                             optopt);
3029                         usage(B_FALSE);
3030                 }
3031         }
3032
3033         argc -= optind;
3034         argv += optind;
3035
3036         /* get pool name and check number of arguments */
3037         if (argc < 1) {
3038                 (void) fprintf(stderr, gettext("missing pool name\n"));
3039                 usage(B_FALSE);
3040         }
3041         if (argc < 2) {
3042                 (void) fprintf(stderr, gettext("missing device name\n"));
3043                 usage(B_FALSE);
3044         }
3045
3046         poolname = argv[0];
3047
3048         if ((zhp = zpool_open(g_zfs, poolname)) == NULL)
3049                 return (1);
3050
3051         for (i = 1; i < argc; i++) {
3052                 if (zpool_vdev_offline(zhp, argv[i], istmp) != 0)
3053                         ret = 1;
3054         }
3055
3056         zpool_close(zhp);
3057
3058         return (ret);
3059 }
3060
3061 /*
3062  * zpool clear <pool> [device]
3063  *
3064  * Clear all errors associated with a pool or a particular device.
3065  */
3066 int
3067 zpool_do_clear(int argc, char **argv)
3068 {
3069         int c;
3070         int ret = 0;
3071         boolean_t dryrun = B_FALSE;
3072         boolean_t do_rewind = B_FALSE;
3073         boolean_t xtreme_rewind = B_FALSE;
3074         uint32_t rewind_policy = ZPOOL_NO_REWIND;
3075         nvlist_t *policy = NULL;
3076         zpool_handle_t *zhp;
3077         char *pool, *device;
3078
3079         /* check options */
3080         while ((c = getopt(argc, argv, "FnX")) != -1) {
3081                 switch (c) {
3082                 case 'F':
3083                         do_rewind = B_TRUE;
3084                         break;
3085                 case 'n':
3086                         dryrun = B_TRUE;
3087                         break;
3088                 case 'X':
3089                         xtreme_rewind = B_TRUE;
3090                         break;
3091                 case '?':
3092                         (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3093                             optopt);
3094                         usage(B_FALSE);
3095                 }
3096         }
3097
3098         argc -= optind;
3099         argv += optind;
3100
3101         if (argc < 1) {
3102                 (void) fprintf(stderr, gettext("missing pool name\n"));
3103                 usage(B_FALSE);
3104         }
3105
3106         if (argc > 2) {
3107                 (void) fprintf(stderr, gettext("too many arguments\n"));
3108                 usage(B_FALSE);
3109         }
3110
3111         if ((dryrun || xtreme_rewind) && !do_rewind) {
3112                 (void) fprintf(stderr,
3113                     gettext("-n or -X only meaningful with -F\n"));
3114                 usage(B_FALSE);
3115         }
3116         if (dryrun)
3117                 rewind_policy = ZPOOL_TRY_REWIND;
3118         else if (do_rewind)
3119                 rewind_policy = ZPOOL_DO_REWIND;
3120         if (xtreme_rewind)
3121                 rewind_policy |= ZPOOL_EXTREME_REWIND;
3122
3123         /* In future, further rewind policy choices can be passed along here */
3124         if (nvlist_alloc(&policy, NV_UNIQUE_NAME, 0) != 0 ||
3125             nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind_policy) != 0)
3126                 return (1);
3127
3128         pool = argv[0];
3129         device = argc == 2 ? argv[1] : NULL;
3130
3131         if ((zhp = zpool_open_canfail(g_zfs, pool)) == NULL) {
3132                 nvlist_free(policy);
3133                 return (1);
3134         }
3135
3136         if (zpool_clear(zhp, device, policy) != 0)
3137                 ret = 1;
3138
3139         zpool_close(zhp);
3140
3141         nvlist_free(policy);
3142
3143         return (ret);
3144 }
3145
3146 typedef struct scrub_cbdata {
3147         int     cb_type;
3148         int     cb_argc;
3149         char    **cb_argv;
3150 } scrub_cbdata_t;
3151
3152 int
3153 scrub_callback(zpool_handle_t *zhp, void *data)
3154 {
3155         scrub_cbdata_t *cb = data;
3156         int err;
3157
3158         /*
3159          * Ignore faulted pools.
3160          */
3161         if (zpool_get_state(zhp) == POOL_STATE_UNAVAIL) {
3162                 (void) fprintf(stderr, gettext("cannot scrub '%s': pool is "
3163                     "currently unavailable\n"), zpool_get_name(zhp));
3164                 return (1);
3165         }
3166
3167         err = zpool_scan(zhp, cb->cb_type);
3168
3169         return (err != 0);
3170 }
3171
3172 /*
3173  * zpool scrub [-s] <pool> ...
3174  *
3175  *      -s      Stop.  Stops any in-progress scrub.
3176  */
3177 int
3178 zpool_do_scrub(int argc, char **argv)
3179 {
3180         int c;
3181         scrub_cbdata_t cb;
3182
3183         cb.cb_type = POOL_SCAN_SCRUB;
3184
3185         /* check options */
3186         while ((c = getopt(argc, argv, "s")) != -1) {
3187                 switch (c) {
3188                 case 's':
3189                         cb.cb_type = POOL_SCAN_NONE;
3190                         break;
3191                 case '?':
3192                         (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3193                             optopt);
3194                         usage(B_FALSE);
3195                 }
3196         }
3197
3198         cb.cb_argc = argc;
3199         cb.cb_argv = argv;
3200         argc -= optind;
3201         argv += optind;
3202
3203         if (argc < 1) {
3204                 (void) fprintf(stderr, gettext("missing pool name argument\n"));
3205                 usage(B_FALSE);
3206         }
3207
3208         return (for_each_pool(argc, argv, B_TRUE, NULL, scrub_callback, &cb));
3209 }
3210
3211 typedef struct status_cbdata {
3212         int             cb_count;
3213         boolean_t       cb_allpools;
3214         boolean_t       cb_verbose;
3215         boolean_t       cb_explain;
3216         boolean_t       cb_first;
3217         boolean_t       cb_dedup_stats;
3218 } status_cbdata_t;
3219
3220 /*
3221  * Print out detailed scrub status.
3222  */
3223 void
3224 print_scan_status(pool_scan_stat_t *ps)
3225 {
3226         time_t start, end;
3227         uint64_t elapsed, mins_left, hours_left;
3228         uint64_t pass_exam, examined, total;
3229         uint_t rate;
3230         double fraction_done;
3231         char processed_buf[7], examined_buf[7], total_buf[7], rate_buf[7];
3232
3233         (void) printf(gettext(" scan: "));
3234
3235         /* If there's never been a scan, there's not much to say. */
3236         if (ps == NULL || ps->pss_func == POOL_SCAN_NONE ||
3237             ps->pss_func >= POOL_SCAN_FUNCS) {
3238                 (void) printf(gettext("none requested\n"));
3239                 return;
3240         }
3241
3242         start = ps->pss_start_time;
3243         end = ps->pss_end_time;
3244         zfs_nicenum(ps->pss_processed, processed_buf, sizeof (processed_buf));
3245
3246         assert(ps->pss_func == POOL_SCAN_SCRUB ||
3247             ps->pss_func == POOL_SCAN_RESILVER);
3248         /*
3249          * Scan is finished or canceled.
3250          */
3251         if (ps->pss_state == DSS_FINISHED) {
3252                 uint64_t minutes_taken = (end - start) / 60;
3253                 char *fmt = NULL;
3254
3255                 if (ps->pss_func == POOL_SCAN_SCRUB) {
3256                         fmt = gettext("scrub repaired %s in %lluh%um with "
3257                             "%llu errors on %s");
3258                 } else if (ps->pss_func == POOL_SCAN_RESILVER) {
3259                         fmt = gettext("resilvered %s in %lluh%um with "
3260                             "%llu errors on %s");
3261                 }
3262                 /* LINTED */
3263                 (void) printf(fmt, processed_buf,
3264                     (u_longlong_t)(minutes_taken / 60),
3265                     (uint_t)(minutes_taken % 60),
3266                     (u_longlong_t)ps->pss_errors,
3267                     ctime((time_t *)&end));
3268                 return;
3269         } else if (ps->pss_state == DSS_CANCELED) {
3270                 if (ps->pss_func == POOL_SCAN_SCRUB) {
3271                         (void) printf(gettext("scrub canceled on %s"),
3272                             ctime(&end));
3273                 } else if (ps->pss_func == POOL_SCAN_RESILVER) {
3274                         (void) printf(gettext("resilver canceled on %s"),
3275                             ctime(&end));
3276                 }
3277                 return;
3278         }
3279
3280         assert(ps->pss_state == DSS_SCANNING);
3281
3282         /*
3283          * Scan is in progress.
3284          */
3285         if (ps->pss_func == POOL_SCAN_SCRUB) {
3286                 (void) printf(gettext("scrub in progress since %s"),
3287                     ctime(&start));
3288         } else if (ps->pss_func == POOL_SCAN_RESILVER) {
3289                 (void) printf(gettext("resilver in progress since %s"),
3290                     ctime(&start));
3291         }
3292
3293         examined = ps->pss_examined ? ps->pss_examined : 1;
3294         total = ps->pss_to_examine;
3295         fraction_done = (double)examined / total;
3296
3297         /* elapsed time for this pass */
3298         elapsed = time(NULL) - ps->pss_pass_start;
3299         elapsed = elapsed ? elapsed : 1;
3300         pass_exam = ps->pss_pass_exam ? ps->pss_pass_exam : 1;
3301         rate = pass_exam / elapsed;
3302         rate = rate ? rate : 1;
3303         mins_left = ((total - examined) / rate) / 60;
3304         hours_left = mins_left / 60;
3305
3306         zfs_nicenum(examined, examined_buf, sizeof (examined_buf));
3307         zfs_nicenum(total, total_buf, sizeof (total_buf));
3308         zfs_nicenum(rate, rate_buf, sizeof (rate_buf));
3309
3310         /*
3311          * do not print estimated time if hours_left is more than 30 days
3312          */
3313         (void) printf(gettext("    %s scanned out of %s at %s/s"),
3314             examined_buf, total_buf, rate_buf);
3315         if (hours_left < (30 * 24)) {
3316                 (void) printf(gettext(", %lluh%um to go\n"),
3317                     (u_longlong_t)hours_left, (uint_t)(mins_left % 60));
3318         } else {
3319                 (void) printf(gettext(
3320                     ", (scan is slow, no estimated time)\n"));
3321         }
3322
3323         if (ps->pss_func == POOL_SCAN_RESILVER) {
3324                 (void) printf(gettext("    %s resilvered, %.2f%% done\n"),
3325                     processed_buf, 100 * fraction_done);
3326         } else if (ps->pss_func == POOL_SCAN_SCRUB) {
3327                 (void) printf(gettext("    %s repaired, %.2f%% done\n"),
3328                     processed_buf, 100 * fraction_done);
3329         }
3330 }
3331
3332 static void
3333 print_error_log(zpool_handle_t *zhp)
3334 {
3335         nvlist_t *nverrlist = NULL;
3336         nvpair_t *elem;
3337         char *pathname;
3338         size_t len = MAXPATHLEN * 2;
3339
3340         if (zpool_get_errlog(zhp, &nverrlist) != 0) {
3341                 (void) printf("errors: List of errors unavailable "
3342                     "(insufficient privileges)\n");
3343                 return;
3344         }
3345
3346         (void) printf("errors: Permanent errors have been "
3347             "detected in the following files:\n\n");
3348
3349         pathname = safe_malloc(len);
3350         elem = NULL;
3351         while ((elem = nvlist_next_nvpair(nverrlist, elem)) != NULL) {
3352                 nvlist_t *nv;
3353                 uint64_t dsobj, obj;
3354
3355                 verify(nvpair_value_nvlist(elem, &nv) == 0);
3356                 verify(nvlist_lookup_uint64(nv, ZPOOL_ERR_DATASET,
3357                     &dsobj) == 0);
3358                 verify(nvlist_lookup_uint64(nv, ZPOOL_ERR_OBJECT,
3359                     &obj) == 0);
3360                 zpool_obj_to_path(zhp, dsobj, obj, pathname, len);
3361                 (void) printf("%7s %s\n", "", pathname);
3362         }
3363         free(pathname);
3364         nvlist_free(nverrlist);
3365 }
3366
3367 static void
3368 print_spares(zpool_handle_t *zhp, nvlist_t **spares, uint_t nspares,
3369     int namewidth)
3370 {
3371         uint_t i;
3372         char *name;
3373
3374         if (nspares == 0)
3375                 return;
3376
3377         (void) printf(gettext("\tspares\n"));
3378
3379         for (i = 0; i < nspares; i++) {
3380                 name = zpool_vdev_name(g_zfs, zhp, spares[i], B_FALSE);
3381                 print_status_config(zhp, name, spares[i],
3382                     namewidth, 2, B_TRUE);
3383                 free(name);
3384         }
3385 }
3386
3387 static void
3388 print_l2cache(zpool_handle_t *zhp, nvlist_t **l2cache, uint_t nl2cache,
3389     int namewidth)
3390 {
3391         uint_t i;
3392         char *name;
3393
3394         if (nl2cache == 0)
3395                 return;
3396
3397         (void) printf(gettext("\tcache\n"));
3398
3399         for (i = 0; i < nl2cache; i++) {
3400                 name = zpool_vdev_name(g_zfs, zhp, l2cache[i], B_FALSE);
3401                 print_status_config(zhp, name, l2cache[i],
3402                     namewidth, 2, B_FALSE);
3403                 free(name);
3404         }
3405 }
3406
3407 static void
3408 print_dedup_stats(nvlist_t *config)
3409 {
3410         ddt_histogram_t *ddh;
3411         ddt_stat_t *dds;
3412         ddt_object_t *ddo;
3413         uint_t c;
3414
3415         /*
3416          * If the pool was faulted then we may not have been able to
3417          * obtain the config. Otherwise, if have anything in the dedup
3418          * table continue processing the stats.
3419          */
3420         if (nvlist_lookup_uint64_array(config, ZPOOL_CONFIG_DDT_OBJ_STATS,
3421             (uint64_t **)&ddo, &c) != 0 || ddo->ddo_count == 0)
3422                 return;
3423
3424         (void) printf("\n");
3425         (void) printf("DDT entries %llu, size %llu on disk, %llu in core\n",
3426             (u_longlong_t)ddo->ddo_count,
3427             (u_longlong_t)ddo->ddo_dspace,
3428             (u_longlong_t)ddo->ddo_mspace);
3429
3430         verify(nvlist_lookup_uint64_array(config, ZPOOL_CONFIG_DDT_STATS,
3431             (uint64_t **)&dds, &c) == 0);
3432         verify(nvlist_lookup_uint64_array(config, ZPOOL_CONFIG_DDT_HISTOGRAM,
3433             (uint64_t **)&ddh, &c) == 0);
3434         zpool_dump_ddt(dds, ddh);
3435 }
3436
3437 /*
3438  * Display a summary of pool status.  Displays a summary such as:
3439  *
3440  *        pool: tank
3441  *      status: DEGRADED
3442  *      reason: One or more devices ...
3443  *         see: http://www.sun.com/msg/ZFS-xxxx-01
3444  *      config:
3445  *              mirror          DEGRADED
3446  *                c1t0d0        OK
3447  *                c2t0d0        UNAVAIL
3448  *
3449  * When given the '-v' option, we print out the complete config.  If the '-e'
3450  * option is specified, then we print out error rate information as well.
3451  */
3452 int
3453 status_callback(zpool_handle_t *zhp, void *data)
3454 {
3455         status_cbdata_t *cbp = data;
3456         nvlist_t *config, *nvroot;
3457         char *msgid;
3458         int reason;
3459         const char *health;
3460         uint_t c;
3461         vdev_stat_t *vs;
3462
3463         config = zpool_get_config(zhp, NULL);
3464         reason = zpool_get_status(zhp, &msgid);
3465
3466         cbp->cb_count++;
3467
3468         /*
3469          * If we were given 'zpool status -x', only report those pools with
3470          * problems.
3471          */
3472         if (reason == ZPOOL_STATUS_OK && cbp->cb_explain) {
3473                 if (!cbp->cb_allpools) {
3474                         (void) printf(gettext("pool '%s' is healthy\n"),
3475                             zpool_get_name(zhp));
3476                         if (cbp->cb_first)
3477                                 cbp->cb_first = B_FALSE;
3478                 }
3479                 return (0);
3480         }
3481
3482         if (cbp->cb_first)
3483                 cbp->cb_first = B_FALSE;
3484         else
3485                 (void) printf("\n");
3486
3487         verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
3488             &nvroot) == 0);
3489         verify(nvlist_lookup_uint64_array(nvroot, ZPOOL_CONFIG_VDEV_STATS,
3490             (uint64_t **)&vs, &c) == 0);
3491         health = zpool_state_to_name(vs->vs_state, vs->vs_aux);
3492
3493         (void) printf(gettext("  pool: %s\n"), zpool_get_name(zhp));
3494         (void) printf(gettext(" state: %s\n"), health);
3495
3496         switch (reason) {
3497         case ZPOOL_STATUS_MISSING_DEV_R:
3498                 (void) printf(gettext("status: One or more devices could not "
3499                     "be opened.  Sufficient replicas exist for\n\tthe pool to "
3500                     "continue functioning in a degraded state.\n"));
3501                 (void) printf(gettext("action: Attach the missing device and "
3502                     "online it using 'zpool online'.\n"));
3503                 break;
3504
3505         case ZPOOL_STATUS_MISSING_DEV_NR:
3506                 (void) printf(gettext("status: One or more devices could not "
3507                     "be opened.  There are insufficient\n\treplicas for the "
3508                     "pool to continue functioning.\n"));
3509                 (void) printf(gettext("action: Attach the missing device and "
3510                     "online it using 'zpool online'.\n"));
3511                 break;
3512
3513         case ZPOOL_STATUS_CORRUPT_LABEL_R:
3514                 (void) printf(gettext("status: One or more devices could not "
3515                     "be used because the label is missing or\n\tinvalid.  "
3516                     "Sufficient replicas exist for the pool to continue\n\t"
3517                     "functioning in a degraded state.\n"));
3518                 (void) printf(gettext("action: Replace the device using "
3519                     "'zpool replace'.\n"));
3520                 break;
3521
3522         case ZPOOL_STATUS_CORRUPT_LABEL_NR:
3523                 (void) printf(gettext("status: One or more devices could not "
3524                     "be used because the label is missing \n\tor invalid.  "
3525                     "There are insufficient replicas for the pool to "
3526                     "continue\n\tfunctioning.\n"));
3527                 zpool_explain_recover(zpool_get_handle(zhp),
3528                     zpool_get_name(zhp), reason, config);
3529                 break;
3530
3531         case ZPOOL_STATUS_FAILING_DEV:
3532                 (void) printf(gettext("status: One or more devices has "
3533                     "experienced an unrecoverable error.  An\n\tattempt was "
3534                     "made to correct the error.  Applications are "
3535                     "unaffected.\n"));
3536                 (void) printf(gettext("action: Determine if the device needs "
3537                     "to be replaced, and clear the errors\n\tusing "
3538                     "'zpool clear' or replace the device with 'zpool "
3539                     "replace'.\n"));
3540                 break;
3541
3542         case ZPOOL_STATUS_OFFLINE_DEV:
3543                 (void) printf(gettext("status: One or more devices has "
3544                     "been taken offline by the administrator.\n\tSufficient "
3545                     "replicas exist for the pool to continue functioning in "
3546                     "a\n\tdegraded state.\n"));
3547                 (void) printf(gettext("action: Online the device using "
3548                     "'zpool online' or replace the device with\n\t'zpool "
3549                     "replace'.\n"));
3550                 break;
3551
3552         case ZPOOL_STATUS_REMOVED_DEV:
3553                 (void) printf(gettext("status: One or more devices has "
3554                     "been removed by the administrator.\n\tSufficient "
3555                     "replicas exist for the pool to continue functioning in "
3556                     "a\n\tdegraded state.\n"));
3557                 (void) printf(gettext("action: Online the device using "
3558                     "'zpool online' or replace the device with\n\t'zpool "
3559                     "replace'.\n"));
3560                 break;
3561
3562         case ZPOOL_STATUS_RESILVERING:
3563                 (void) printf(gettext("status: One or more devices is "
3564                     "currently being resilvered.  The pool will\n\tcontinue "
3565                     "to function, possibly in a degraded state.\n"));
3566                 (void) printf(gettext("action: Wait for the resilver to "
3567                     "complete.\n"));
3568                 break;
3569
3570         case ZPOOL_STATUS_CORRUPT_DATA:
3571                 (void) printf(gettext("status: One or more devices has "
3572                     "experienced an error resulting in data\n\tcorruption.  "
3573                     "Applications may be affected.\n"));
3574                 (void) printf(gettext("action: Restore the file in question "
3575                     "if possible.  Otherwise restore the\n\tentire pool from "
3576                     "backup.\n"));
3577                 break;
3578
3579         case ZPOOL_STATUS_CORRUPT_POOL:
3580                 (void) printf(gettext("status: The pool metadata is corrupted "
3581                     "and the pool cannot be opened.\n"));
3582                 zpool_explain_recover(zpool_get_handle(zhp),
3583                     zpool_get_name(zhp), reason, config);
3584                 break;
3585
3586         case ZPOOL_STATUS_VERSION_OLDER:
3587                 (void) printf(gettext("status: The pool is formatted using an "
3588                     "older on-disk format.  The pool can\n\tstill be used, but "
3589                     "some features are unavailable.\n"));
3590                 (void) printf(gettext("action: Upgrade the pool using 'zpool "
3591                     "upgrade'.  Once this is done, the\n\tpool will no longer "
3592                     "be accessible on older software versions.\n"));
3593                 break;
3594
3595         case ZPOOL_STATUS_VERSION_NEWER:
3596                 (void) printf(gettext("status: The pool has been upgraded to a "
3597                     "newer, incompatible on-disk version.\n\tThe pool cannot "
3598                     "be accessed on this system.\n"));
3599                 (void) printf(gettext("action: Access the pool from a system "
3600                     "running more recent software, or\n\trestore the pool from "
3601                     "backup.\n"));
3602                 break;
3603
3604         case ZPOOL_STATUS_FAULTED_DEV_R:
3605                 (void) printf(gettext("status: One or more devices are "
3606                     "faulted in response to persistent errors.\n\tSufficient "
3607                     "replicas exist for the pool to continue functioning "
3608                     "in a\n\tdegraded state.\n"));
3609                 (void) printf(gettext("action: Replace the faulted device, "
3610                     "or use 'zpool clear' to mark the device\n\trepaired.\n"));
3611                 break;
3612
3613         case ZPOOL_STATUS_FAULTED_DEV_NR:
3614                 (void) printf(gettext("status: One or more devices are "
3615                     "faulted in response to persistent errors.  There are "
3616                     "insufficient replicas for the pool to\n\tcontinue "
3617                     "functioning.\n"));
3618                 (void) printf(gettext("action: Destroy and re-create the pool "
3619                     "from a backup source.  Manually marking the device\n"
3620                     "\trepaired using 'zpool clear' may allow some data "
3621                     "to be recovered.\n"));
3622                 break;
3623
3624         case ZPOOL_STATUS_IO_FAILURE_WAIT:
3625         case ZPOOL_STATUS_IO_FAILURE_CONTINUE:
3626                 (void) printf(gettext("status: One or more devices are "
3627                     "faulted in response to IO failures.\n"));
3628                 (void) printf(gettext("action: Make sure the affected devices "
3629                     "are connected, then run 'zpool clear'.\n"));
3630                 break;
3631
3632         case ZPOOL_STATUS_BAD_LOG:
3633                 (void) printf(gettext("status: An intent log record "
3634                     "could not be read.\n"
3635                     "\tWaiting for adminstrator intervention to fix the "
3636                     "faulted pool.\n"));
3637                 (void) printf(gettext("action: Either restore the affected "
3638                     "device(s) and run 'zpool online',\n"
3639                     "\tor ignore the intent log records by running "
3640                     "'zpool clear'.\n"));
3641                 break;
3642
3643         default:
3644                 /*
3645                  * The remaining errors can't actually be generated, yet.
3646                  */
3647                 assert(reason == ZPOOL_STATUS_OK);
3648         }
3649
3650         if (msgid != NULL)
3651                 (void) printf(gettext("   see: http://www.sun.com/msg/%s\n"),
3652                     msgid);
3653
3654         if (config != NULL) {
3655                 int namewidth;
3656                 uint64_t nerr;
3657                 nvlist_t **spares, **l2cache;
3658                 uint_t nspares, nl2cache;
3659                 pool_scan_stat_t *ps = NULL;
3660
3661                 (void) nvlist_lookup_uint64_array(nvroot,
3662                     ZPOOL_CONFIG_SCAN_STATS, (uint64_t **)&ps, &c);
3663                 print_scan_status(ps);
3664
3665                 namewidth = max_width(zhp, nvroot, 0, 0);
3666                 if (namewidth < 10)
3667                         namewidth = 10;
3668
3669                 (void) printf(gettext("config:\n\n"));
3670                 (void) printf(gettext("\t%-*s  %-8s %5s %5s %5s\n"), namewidth,
3671                     "NAME", "STATE", "READ", "WRITE", "CKSUM");
3672                 print_status_config(zhp, zpool_get_name(zhp), nvroot,
3673                     namewidth, 0, B_FALSE);
3674
3675                 if (num_logs(nvroot) > 0)
3676                         print_logs(zhp, nvroot, namewidth, B_TRUE);
3677                 if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_L2CACHE,
3678                     &l2cache, &nl2cache) == 0)
3679                         print_l2cache(zhp, l2cache, nl2cache, namewidth);
3680
3681                 if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES,
3682                     &spares, &nspares) == 0)
3683                         print_spares(zhp, spares, nspares, namewidth);
3684
3685                 if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_ERRCOUNT,
3686                     &nerr) == 0) {
3687                         nvlist_t *nverrlist = NULL;
3688
3689                         /*
3690                          * If the approximate error count is small, get a
3691                          * precise count by fetching the entire log and
3692                          * uniquifying the results.
3693                          */
3694                         if (nerr > 0 && nerr < 100 && !cbp->cb_verbose &&
3695                             zpool_get_errlog(zhp, &nverrlist) == 0) {
3696                                 nvpair_t *elem;
3697
3698                                 elem = NULL;
3699                                 nerr = 0;
3700                                 while ((elem = nvlist_next_nvpair(nverrlist,
3701                                     elem)) != NULL) {
3702                                         nerr++;
3703                                 }
3704                         }
3705                         nvlist_free(nverrlist);
3706
3707                         (void) printf("\n");
3708
3709                         if (nerr == 0)
3710                                 (void) printf(gettext("errors: No known data "
3711                                     "errors\n"));
3712                         else if (!cbp->cb_verbose)
3713                                 (void) printf(gettext("errors: %llu data "
3714                                     "errors, use '-v' for a list\n"),
3715                                     (u_longlong_t)nerr);
3716                         else
3717                                 print_error_log(zhp);
3718                 }
3719
3720                 if (cbp->cb_dedup_stats)
3721                         print_dedup_stats(config);
3722         } else {
3723                 (void) printf(gettext("config: The configuration cannot be "
3724                     "determined.\n"));
3725         }
3726
3727         return (0);
3728 }
3729
3730 /*
3731  * zpool status [-vx] [-T d|u] [pool] ... [interval [count]]
3732  *
3733  *      -v      Display complete error logs
3734  *      -x      Display only pools with potential problems
3735  *      -D      Display dedup status (undocumented)
3736  *      -T      Display a timestamp in date(1) or Unix format
3737  *
3738  * Describes the health status of all pools or some subset.
3739  */
3740 int
3741 zpool_do_status(int argc, char **argv)
3742 {
3743         int c;
3744         int ret;
3745         unsigned long interval = 0, count = 0;
3746         status_cbdata_t cb = { 0 };
3747
3748         /* check options */
3749         while ((c = getopt(argc, argv, "vxDT:")) != -1) {
3750                 switch (c) {
3751                 case 'v':
3752                         cb.cb_verbose = B_TRUE;
3753                         break;
3754                 case 'x':
3755                         cb.cb_explain = B_TRUE;
3756                         break;
3757                 case 'D':
3758                         cb.cb_dedup_stats = B_TRUE;
3759                         break;
3760                 case 'T':
3761                         get_timestamp_arg(*optarg);
3762                         break;
3763                 case '?':
3764                         (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3765                             optopt);
3766                         usage(B_FALSE);
3767                 }
3768         }
3769
3770         argc -= optind;
3771         argv += optind;
3772
3773         get_interval_count(&argc, argv, &interval, &count);
3774
3775         if (argc == 0)
3776                 cb.cb_allpools = B_TRUE;
3777
3778         cb.cb_first = B_TRUE;
3779
3780         for (;;) {
3781                 if (timestamp_fmt != NODATE)
3782                         print_timestamp(timestamp_fmt);
3783
3784                 ret = for_each_pool(argc, argv, B_TRUE, NULL,
3785                     status_callback, &cb);
3786
3787                 if (argc == 0 && cb.cb_count == 0)
3788                         (void) printf(gettext("no pools available\n"));
3789                 else if (cb.cb_explain && cb.cb_first && cb.cb_allpools)
3790                         (void) printf(gettext("all pools are healthy\n"));
3791
3792                 if (ret != 0)
3793                         return (ret);
3794
3795                 if (interval == 0)
3796                         break;
3797
3798                 if (count != 0 && --count == 0)
3799                         break;
3800
3801                 (void) sleep(interval);
3802         }
3803
3804         return (0);
3805 }
3806
3807 typedef struct upgrade_cbdata {
3808         int     cb_all;
3809         int     cb_first;
3810         int     cb_newer;
3811         int     cb_argc;
3812         uint64_t cb_version;
3813         char    **cb_argv;
3814 } upgrade_cbdata_t;
3815
3816 static int
3817 upgrade_cb(zpool_handle_t *zhp, void *arg)
3818 {
3819         upgrade_cbdata_t *cbp = arg;
3820         nvlist_t *config;
3821         uint64_t version;
3822         int ret = 0;
3823
3824         config = zpool_get_config(zhp, NULL);
3825         verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION,
3826             &version) == 0);
3827
3828         if (!cbp->cb_newer && version < SPA_VERSION) {
3829                 if (!cbp->cb_all) {
3830                         if (cbp->cb_first) {
3831                                 (void) printf(gettext("The following pools are "
3832                                     "out of date, and can be upgraded.  After "
3833                                     "being\nupgraded, these pools will no "
3834                                     "longer be accessible by older software "
3835                                     "versions.\n\n"));
3836                                 (void) printf(gettext("VER  POOL\n"));
3837                                 (void) printf(gettext("---  ------------\n"));
3838                                 cbp->cb_first = B_FALSE;
3839                         }
3840
3841                         (void) printf("%2llu   %s\n", (u_longlong_t)version,
3842                             zpool_get_name(zhp));
3843                 } else {
3844                         cbp->cb_first = B_FALSE;
3845                         ret = zpool_upgrade(zhp, cbp->cb_version);
3846                         if (!ret) {
3847                                 (void) printf(gettext("Successfully upgraded "
3848                                     "'%s'\n\n"), zpool_get_name(zhp));
3849                         }
3850                 }
3851         } else if (cbp->cb_newer && version > SPA_VERSION) {
3852                 assert(!cbp->cb_all);
3853
3854                 if (cbp->cb_first) {
3855                         (void) printf(gettext("The following pools are "
3856                             "formatted using a newer software version and\n"
3857                             "cannot be accessed on the current system.\n\n"));
3858                         (void) printf(gettext("VER  POOL\n"));
3859                         (void) printf(gettext("---  ------------\n"));
3860                         cbp->cb_first = B_FALSE;
3861                 }
3862
3863                 (void) printf("%2llu   %s\n", (u_longlong_t)version,
3864                     zpool_get_name(zhp));
3865         }
3866
3867         zpool_close(zhp);
3868         return (ret);
3869 }
3870
3871 /* ARGSUSED */
3872 static int
3873 upgrade_one(zpool_handle_t *zhp, void *data)
3874 {
3875         upgrade_cbdata_t *cbp = data;
3876         uint64_t cur_version;
3877         int ret;
3878
3879         if (strcmp("log", zpool_get_name(zhp)) == 0) {
3880                 (void) printf(gettext("'log' is now a reserved word\n"
3881                     "Pool 'log' must be renamed using export and import"
3882                     " to upgrade.\n"));
3883                 return (1);
3884         }
3885
3886         cur_version = zpool_get_prop_int(zhp, ZPOOL_PROP_VERSION, NULL);
3887         if (cur_version > cbp->cb_version) {
3888                 (void) printf(gettext("Pool '%s' is already formatted "
3889                     "using more current version '%llu'.\n"),
3890                     zpool_get_name(zhp), (u_longlong_t) cur_version);
3891                 return (0);
3892         }
3893         if (cur_version == cbp->cb_version) {
3894                 (void) printf(gettext("Pool '%s' is already formatted "
3895                     "using the current version.\n"), zpool_get_name(zhp));
3896                 return (0);
3897         }
3898
3899         ret = zpool_upgrade(zhp, cbp->cb_version);
3900
3901         if (!ret) {
3902                 (void) printf(gettext("Successfully upgraded '%s' "
3903                     "from version %llu to version %llu\n\n"),
3904                     zpool_get_name(zhp), (u_longlong_t)cur_version,
3905                     (u_longlong_t)cbp->cb_version);
3906         }
3907
3908         return (ret != 0);
3909 }
3910
3911 /*
3912  * zpool upgrade
3913  * zpool upgrade -v
3914  * zpool upgrade [-V version] <-a | pool ...>
3915  *
3916  * With no arguments, display downrev'd ZFS pool available for upgrade.
3917  * Individual pools can be upgraded by specifying the pool, and '-a' will
3918  * upgrade all pools.
3919  */
3920 int
3921 zpool_do_upgrade(int argc, char **argv)
3922 {
3923         int c;
3924         upgrade_cbdata_t cb = { 0 };
3925         int ret = 0;
3926         boolean_t showversions = B_FALSE;
3927         char *end;
3928
3929
3930         /* check options */
3931         while ((c = getopt(argc, argv, ":avV:")) != -1) {
3932                 switch (c) {
3933                 case 'a':
3934                         cb.cb_all = B_TRUE;
3935                         break;
3936                 case 'v':
3937                         showversions = B_TRUE;
3938                         break;
3939                 case 'V':
3940                         cb.cb_version = strtoll(optarg, &end, 10);
3941                         if (*end != '\0' || cb.cb_version > SPA_VERSION ||
3942                             cb.cb_version < SPA_VERSION_1) {
3943                                 (void) fprintf(stderr,
3944                                     gettext("invalid version '%s'\n"), optarg);
3945                                 usage(B_FALSE);
3946                         }
3947                         break;
3948                 case ':':
3949                         (void) fprintf(stderr, gettext("missing argument for "
3950                             "'%c' option\n"), optopt);
3951                         usage(B_FALSE);
3952                         break;
3953                 case '?':
3954                         (void) fprintf(stderr, gettext("invalid option '%c'\n"),
3955                             optopt);
3956                         usage(B_FALSE);
3957                 }
3958         }
3959
3960         cb.cb_argc = argc;
3961         cb.cb_argv = argv;
3962         argc -= optind;
3963         argv += optind;
3964
3965         if (cb.cb_version == 0) {
3966                 cb.cb_version = SPA_VERSION;
3967         } else if (!cb.cb_all && argc == 0) {
3968                 (void) fprintf(stderr, gettext("-V option is "
3969                     "incompatible with other arguments\n"));
3970                 usage(B_FALSE);
3971         }
3972
3973         if (showversions) {
3974                 if (cb.cb_all || argc != 0) {
3975                         (void) fprintf(stderr, gettext("-v option is "
3976                             "incompatible with other arguments\n"));
3977                         usage(B_FALSE);
3978                 }
3979         } else if (cb.cb_all) {
3980                 if (argc != 0) {
3981                         (void) fprintf(stderr, gettext("-a option should not "
3982                             "be used along with a pool name\n"));
3983                         usage(B_FALSE);
3984                 }
3985         }
3986
3987         (void) printf(gettext("This system is currently running "
3988             "ZFS pool version %llu.\n\n"), SPA_VERSION);
3989         cb.cb_first = B_TRUE;
3990         if (showversions) {
3991                 (void) printf(gettext("The following versions are "
3992                     "supported:\n\n"));
3993                 (void) printf(gettext("VER  DESCRIPTION\n"));
3994                 (void) printf("---  -----------------------------------------"
3995                     "---------------\n");
3996                 (void) printf(gettext(" 1   Initial ZFS version\n"));
3997                 (void) printf(gettext(" 2   Ditto blocks "
3998                     "(replicated metadata)\n"));
3999                 (void) printf(gettext(" 3   Hot spares and double parity "
4000                     "RAID-Z\n"));
4001                 (void) printf(gettext(" 4   zpool history\n"));
4002                 (void) printf(gettext(" 5   Compression using the gzip "
4003                     "algorithm\n"));
4004                 (void) printf(gettext(" 6   bootfs pool property\n"));
4005                 (void) printf(gettext(" 7   Separate intent log devices\n"));
4006                 (void) printf(gettext(" 8   Delegated administration\n"));
4007                 (void) printf(gettext(" 9   refquota and refreservation "
4008                     "properties\n"));
4009                 (void) printf(gettext(" 10  Cache devices\n"));
4010                 (void) printf(gettext(" 11  Improved scrub performance\n"));
4011                 (void) printf(gettext(" 12  Snapshot properties\n"));
4012                 (void) printf(gettext(" 13  snapused property\n"));
4013                 (void) printf(gettext(" 14  passthrough-x aclinherit\n"));
4014                 (void) printf(gettext(" 15  user/group space accounting\n"));
4015                 (void) printf(gettext(" 16  stmf property support\n"));
4016                 (void) printf(gettext(" 17  Triple-parity RAID-Z\n"));
4017                 (void) printf(gettext(" 18  Snapshot user holds\n"));
4018                 (void) printf(gettext(" 19  Log device removal\n"));
4019                 (void) printf(gettext(" 20  Compression using zle "
4020                     "(zero-length encoding)\n"));
4021                 (void) printf(gettext(" 21  Deduplication\n"));
4022                 (void) printf(gettext(" 22  Received properties\n"));
4023                 (void) printf(gettext(" 23  Slim ZIL\n"));
4024                 (void) printf(gettext(" 24  System attributes\n"));
4025                 (void) printf(gettext(" 25  Improved scrub stats\n"));
4026                 (void) printf(gettext(" 26  Improved snapshot deletion "
4027                     "performance\n"));
4028                 (void) printf(gettext(" 27  Improved snapshot creation "
4029                     "performance\n"));
4030                 (void) printf(gettext(" 28  Multiple vdev replacements\n"));
4031                 (void) printf(gettext("\nFor more information on a particular "
4032                     "version, including supported releases,\n"));
4033                 (void) printf(gettext("see the ZFS Administration Guide.\n\n"));
4034         } else if (argc == 0) {
4035                 int notfound;
4036
4037                 ret = zpool_iter(g_zfs, upgrade_cb, &cb);
4038                 notfound = cb.cb_first;
4039
4040                 if (!cb.cb_all && ret == 0) {
4041                         if (!cb.cb_first)
4042                                 (void) printf("\n");
4043                         cb.cb_first = B_TRUE;
4044                         cb.cb_newer = B_TRUE;
4045                         ret = zpool_iter(g_zfs, upgrade_cb, &cb);
4046                         if (!cb.cb_first) {
4047                                 notfound = B_FALSE;
4048                                 (void) printf("\n");
4049                         }
4050                 }
4051
4052                 if (ret == 0) {
4053                         if (notfound)
4054                                 (void) printf(gettext("All pools are formatted "
4055                                     "using this version.\n"));
4056                         else if (!cb.cb_all)
4057                                 (void) printf(gettext("Use 'zpool upgrade -v' "
4058                                     "for a list of available versions and "
4059                                     "their associated\nfeatures.\n"));
4060                 }
4061         } else {
4062                 ret = for_each_pool(argc, argv, B_FALSE, NULL,
4063                     upgrade_one, &cb);
4064         }
4065
4066         return (ret);
4067 }
4068
4069 typedef struct hist_cbdata {
4070         boolean_t first;
4071         int longfmt;
4072         int internal;
4073 } hist_cbdata_t;
4074
4075 /*
4076  * Print out the command history for a specific pool.
4077  */
4078 static int
4079 get_history_one(zpool_handle_t *zhp, void *data)
4080 {
4081         nvlist_t *nvhis;
4082         nvlist_t **records;
4083         uint_t numrecords;
4084         char *cmdstr;
4085         char *pathstr;
4086         uint64_t dst_time;
4087         time_t tsec;
4088         struct tm t;
4089         char tbuf[30];
4090         int ret, i;
4091         uint64_t who;
4092         struct passwd *pwd;
4093         char *hostname;
4094         char *zonename;
4095         char internalstr[MAXPATHLEN];
4096         hist_cbdata_t *cb = (hist_cbdata_t *)data;
4097         uint64_t txg;
4098         uint64_t ievent;
4099
4100         cb->first = B_FALSE;
4101
4102         (void) printf(gettext("History for '%s':\n"), zpool_get_name(zhp));
4103
4104         if ((ret = zpool_get_history(zhp, &nvhis)) != 0)
4105                 return (ret);
4106
4107         verify(nvlist_lookup_nvlist_array(nvhis, ZPOOL_HIST_RECORD,
4108             &records, &numrecords) == 0);
4109         for (i = 0; i < numrecords; i++) {
4110                 if (nvlist_lookup_uint64(records[i], ZPOOL_HIST_TIME,
4111                     &dst_time) != 0)
4112                         continue;
4113
4114                 /* is it an internal event or a standard event? */
4115                 if (nvlist_lookup_string(records[i], ZPOOL_HIST_CMD,
4116                     &cmdstr) != 0) {
4117                         if (cb->internal == 0)
4118                                 continue;
4119
4120                         if (nvlist_lookup_uint64(records[i],
4121                             ZPOOL_HIST_INT_EVENT, &ievent) != 0)
4122                                 continue;
4123                         verify(nvlist_lookup_uint64(records[i],
4124                             ZPOOL_HIST_TXG, &txg) == 0);
4125                         verify(nvlist_lookup_string(records[i],
4126                             ZPOOL_HIST_INT_STR, &pathstr) == 0);
4127                         if (ievent >= LOG_END)
4128                                 continue;
4129                         (void) snprintf(internalstr,
4130                             sizeof (internalstr),
4131                             "[internal %s txg:%llu] %s",
4132                             zfs_history_event_names[ievent], (u_longlong_t)txg,
4133                             pathstr);
4134                         cmdstr = internalstr;
4135                 }
4136                 tsec = dst_time;
4137                 (void) localtime_r(&tsec, &t);
4138                 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t);
4139                 (void) printf("%s %s", tbuf, cmdstr);
4140
4141                 if (!cb->longfmt) {
4142                         (void) printf("\n");
4143                         continue;
4144                 }
4145                 (void) printf(" [");
4146                 if (nvlist_lookup_uint64(records[i],
4147                     ZPOOL_HIST_WHO, &who) == 0) {
4148                         pwd = getpwuid((uid_t)who);
4149                         if (pwd)
4150                                 (void) printf("user %s on",
4151                                     pwd->pw_name);
4152                         else
4153                                 (void) printf("user %d on",
4154                                     (int)who);
4155                 } else {
4156                         (void) printf(gettext("no info]\n"));
4157                         continue;
4158                 }
4159                 if (nvlist_lookup_string(records[i],
4160                     ZPOOL_HIST_HOST, &hostname) == 0) {
4161                         (void) printf(" %s", hostname);
4162                 }
4163                 if (nvlist_lookup_string(records[i],
4164                     ZPOOL_HIST_ZONE, &zonename) == 0) {
4165                         (void) printf(":%s", zonename);
4166                 }
4167
4168                 (void) printf("]");
4169                 (void) printf("\n");
4170         }
4171         (void) printf("\n");
4172         nvlist_free(nvhis);
4173
4174         return (ret);
4175 }
4176
4177 /*
4178  * zpool history <pool>
4179  *
4180  * Displays the history of commands that modified pools.
4181  */
4182
4183
4184 int
4185 zpool_do_history(int argc, char **argv)
4186 {
4187         hist_cbdata_t cbdata = { 0 };
4188         int ret;
4189         int c;
4190
4191         cbdata.first = B_TRUE;
4192         /* check options */
4193         while ((c = getopt(argc, argv, "li")) != -1) {
4194                 switch (c) {
4195                 case 'l':
4196                         cbdata.longfmt = 1;
4197                         break;
4198                 case 'i':
4199                         cbdata.internal = 1;
4200                         break;
4201                 case '?':
4202                         (void) fprintf(stderr, gettext("invalid option '%c'\n"),
4203                             optopt);
4204                         usage(B_FALSE);
4205                 }
4206         }
4207         argc -= optind;
4208         argv += optind;
4209
4210         ret = for_each_pool(argc, argv, B_FALSE,  NULL, get_history_one,
4211             &cbdata);
4212
4213         if (argc == 0 && cbdata.first == B_TRUE) {
4214                 (void) printf(gettext("no pools available\n"));
4215                 return (0);
4216         }
4217
4218         return (ret);
4219 }
4220
4221 typedef struct ev_opts {
4222         int verbose;
4223         int follow;
4224         int clear;
4225 } ev_opts_t;
4226
4227 static void
4228 zpool_do_events_short(nvlist_t *nvl)
4229 {
4230         char ctime_str[26], str[32], *ptr;
4231         int64_t *tv;
4232         uint_t n;
4233
4234         verify(nvlist_lookup_int64_array(nvl, FM_EREPORT_TIME, &tv, &n) == 0);
4235         memset(str, ' ', 32);
4236         (void) ctime_r((const time_t *)&tv[0], ctime_str);
4237         (void) strncpy(str,    ctime_str+4,  6);             /* 'Jun 30'     */
4238         (void) strncpy(str+7,  ctime_str+20, 4);             /* '1993'       */
4239         (void) strncpy(str+12, ctime_str+11, 8);             /* '21:49:08'   */
4240         (void) sprintf(str+20, ".%09lld", (longlong_t)tv[1]);/* '.123456789' */
4241         (void) printf(gettext("%s "), str);
4242
4243         verify(nvlist_lookup_string(nvl, FM_CLASS, &ptr) == 0);
4244         (void) printf(gettext("%s\n"), ptr);
4245 }
4246
4247 static void
4248 zpool_do_events_nvprint(nvlist_t *nvl, int depth)
4249 {
4250         nvpair_t *nvp;
4251
4252         for (nvp = nvlist_next_nvpair(nvl, NULL);
4253             nvp != NULL; nvp = nvlist_next_nvpair(nvl, nvp)) {
4254
4255                 data_type_t type = nvpair_type(nvp);
4256                 const char *name = nvpair_name(nvp);
4257
4258                 boolean_t b;
4259                 uint8_t i8;
4260                 uint16_t i16;
4261                 uint32_t i32;
4262                 uint64_t i64;
4263                 char *str;
4264                 nvlist_t *cnv;
4265
4266                 printf(gettext("%*s%s = "), depth, "", name);
4267
4268                 switch (type) {
4269                 case DATA_TYPE_BOOLEAN:
4270                         printf(gettext("%s"), "1");
4271                         break;
4272
4273                 case DATA_TYPE_BOOLEAN_VALUE:
4274                         (void) nvpair_value_boolean_value(nvp, &b);
4275                         printf(gettext("%s"), b ? "1" : "0");
4276                         break;
4277
4278                 case DATA_TYPE_BYTE:
4279                         (void) nvpair_value_byte(nvp, &i8);
4280                         printf(gettext("0x%x"), i8);
4281                         break;
4282
4283                 case DATA_TYPE_INT8:
4284                         (void) nvpair_value_int8(nvp, (void *)&i8);
4285                         printf(gettext("0x%x"), i8);
4286                         break;
4287
4288                 case DATA_TYPE_UINT8:
4289                         (void) nvpair_value_uint8(nvp, &i8);
4290                         printf(gettext("0x%x"), i8);
4291                         break;
4292
4293                 case DATA_TYPE_INT16:
4294                         (void) nvpair_value_int16(nvp, (void *)&i16);
4295                         printf(gettext("0x%x"), i16);
4296                         break;
4297
4298                 case DATA_TYPE_UINT16:
4299                         (void) nvpair_value_uint16(nvp, &i16);
4300                         printf(gettext("0x%x"), i16);
4301                         break;
4302
4303                 case DATA_TYPE_INT32:
4304                         (void) nvpair_value_int32(nvp, (void *)&i32);
4305                         printf(gettext("0x%x"), i32);
4306                         break;
4307
4308                 case DATA_TYPE_UINT32:
4309                         (void) nvpair_value_uint32(nvp, &i32);
4310                         printf(gettext("0x%x"), i32);
4311                         break;
4312
4313                 case DATA_TYPE_INT64:
4314                         (void) nvpair_value_int64(nvp, (void *)&i64);
4315                         printf(gettext("0x%llx"), (u_longlong_t)i64);
4316                         break;
4317
4318                 case DATA_TYPE_UINT64:
4319                         (void) nvpair_value_uint64(nvp, &i64);
4320                         printf(gettext("0x%llx"), (u_longlong_t)i64);
4321                         break;
4322
4323                 case DATA_TYPE_HRTIME:
4324                         (void) nvpair_value_hrtime(nvp, (void *)&i64);
4325                         printf(gettext("0x%llx"), (u_longlong_t)i64);
4326                         break;
4327
4328                 case DATA_TYPE_STRING:
4329                         (void) nvpair_value_string(nvp, &str);
4330                         printf(gettext("\"%s\""), str ? str : "<NULL>");
4331                         break;
4332
4333                 case DATA_TYPE_NVLIST:
4334                         printf(gettext("(embedded nvlist)\n"));
4335                         (void) nvpair_value_nvlist(nvp, &cnv);
4336                         zpool_do_events_nvprint(cnv, depth + 8);
4337                         printf(gettext("%*s(end %s)\n"), depth, "", name);
4338                         break;
4339
4340                 case DATA_TYPE_NVLIST_ARRAY: {
4341                         nvlist_t **val;
4342                         uint_t i, nelem;
4343
4344                         (void) nvpair_value_nvlist_array(nvp, &val, &nelem);
4345                         printf(gettext("(%d embedded nvlists)\n"), nelem);
4346                         for (i = 0; i < nelem; i++) {
4347                                 printf(gettext("%*s%s[%d] = %s\n"),
4348                                        depth, "", name, i, "(embedded nvlist)");
4349                                 zpool_do_events_nvprint(val[i], depth + 8);
4350                                 printf(gettext("%*s(end %s[%i])\n"),
4351                                        depth, "", name, i);
4352                         }
4353                         printf(gettext("%*s(end %s)\n"), depth, "", name);
4354                         }
4355                         break;
4356
4357                 case DATA_TYPE_INT8_ARRAY: {
4358                         int8_t *val;
4359                         uint_t i, nelem;
4360
4361                         (void) nvpair_value_int8_array(nvp, &val, &nelem);
4362                         for (i = 0; i < nelem; i++)
4363                                 printf(gettext("0x%x "), val[i]);
4364
4365                         break;
4366                         }
4367
4368                 case DATA_TYPE_UINT8_ARRAY: {
4369                         uint8_t *val;
4370                         uint_t i, nelem;
4371
4372                         (void) nvpair_value_uint8_array(nvp, &val, &nelem);
4373                         for (i = 0; i < nelem; i++)
4374                                 printf(gettext("0x%x "), val[i]);
4375
4376                         break;
4377                         }
4378
4379                 case DATA_TYPE_INT16_ARRAY: {
4380                         int16_t *val;
4381                         uint_t i, nelem;
4382
4383                         (void) nvpair_value_int16_array(nvp, &val, &nelem);
4384                         for (i = 0; i < nelem; i++)
4385                                 printf(gettext("0x%x "), val[i]);
4386
4387                         break;
4388                         }
4389
4390                 case DATA_TYPE_UINT16_ARRAY: {
4391                         uint16_t *val;
4392                         uint_t i, nelem;
4393
4394                         (void) nvpair_value_uint16_array(nvp, &val, &nelem);
4395                         for (i = 0; i < nelem; i++)
4396                                 printf(gettext("0x%x "), val[i]);
4397
4398                         break;
4399                         }
4400
4401                 case DATA_TYPE_INT32_ARRAY: {
4402                         int32_t *val;
4403                         uint_t i, nelem;
4404
4405                         (void) nvpair_value_int32_array(nvp, &val, &nelem);
4406                         for (i = 0; i < nelem; i++)
4407                                 printf(gettext("0x%x "), val[i]);
4408
4409                         break;
4410                         }
4411
4412                 case DATA_TYPE_UINT32_ARRAY: {
4413                         uint32_t *val;
4414                         uint_t i, nelem;
4415
4416                         (void) nvpair_value_uint32_array(nvp, &val, &nelem);
4417                         for (i = 0; i < nelem; i++)
4418                                 printf(gettext("0x%x "), val[i]);
4419
4420                         break;
4421                         }
4422
4423                 case DATA_TYPE_INT64_ARRAY: {
4424                         int64_t *val;
4425                         uint_t i, nelem;
4426
4427                         (void) nvpair_value_int64_array(nvp, &val, &nelem);
4428                         for (i = 0; i < nelem; i++)
4429                                 printf(gettext("0x%llx "), (u_longlong_t)val[i]);
4430
4431                         break;
4432                         }
4433
4434                 case DATA_TYPE_UINT64_ARRAY: {
4435                         uint64_t *val;
4436                         uint_t i, nelem;
4437
4438                         (void) nvpair_value_uint64_array(nvp, &val, &nelem);
4439                         for (i = 0; i < nelem; i++)
4440                                 printf(gettext("0x%llx "), (u_longlong_t)val[i]);
4441
4442                         break;
4443                         }
4444
4445                 case DATA_TYPE_STRING_ARRAY:
4446                 case DATA_TYPE_BOOLEAN_ARRAY:
4447                 case DATA_TYPE_BYTE_ARRAY:
4448                 case DATA_TYPE_DOUBLE:
4449                 case DATA_TYPE_UNKNOWN:
4450                         printf(gettext("<unknown>"));
4451                         break;
4452                 }
4453
4454                 printf(gettext("\n"));
4455         }
4456 }
4457
4458 static int
4459 zpool_do_events_next(ev_opts_t *opts)
4460 {
4461         nvlist_t *nvl;
4462         int cleanup_fd, ret, dropped;
4463
4464         cleanup_fd = open(ZFS_DEV, O_RDWR);
4465         VERIFY(cleanup_fd >= 0);
4466
4467         (void) printf(gettext("%-30s %s\n"), "TIME", "CLASS");
4468
4469         while (1) {
4470                 ret = zpool_events_next(g_zfs, &nvl, &dropped,
4471                     !!opts->follow, cleanup_fd);
4472                 if (ret || nvl == NULL)
4473                         break;
4474
4475                 if (dropped > 0)
4476                         (void) printf(gettext("dropped %d events\n"), dropped);
4477
4478                 zpool_do_events_short(nvl);
4479
4480                 if (opts->verbose) {
4481                         zpool_do_events_nvprint(nvl, 8);
4482                         printf(gettext("\n"));
4483                 }
4484
4485                 nvlist_free(nvl);
4486         }
4487
4488         VERIFY(0 == close(cleanup_fd));
4489
4490         return (ret);
4491 }
4492
4493 static int
4494 zpool_do_events_clear(ev_opts_t *opts)
4495 {
4496         int count, ret;
4497
4498         ret = zpool_events_clear(g_zfs, &count);
4499         if (!ret)
4500                 (void) printf(gettext("cleared %d events\n"), count);
4501
4502         return (ret);
4503 }
4504
4505 /*
4506  * zpool events [-vfc]
4507  *
4508  * Displays events logs by ZFS.
4509  */
4510 int
4511 zpool_do_events(int argc, char **argv)
4512 {
4513         ev_opts_t opts = { 0 };
4514         int ret;
4515         int c;
4516
4517         /* check options */
4518         while ((c = getopt(argc, argv, "vfc")) != -1) {
4519                 switch (c) {
4520                 case 'v':
4521                         opts.verbose = 1;
4522                         break;
4523                 case 'f':
4524                         opts.follow = 1;
4525                         break;
4526                 case 'c':
4527                         opts.clear = 1;
4528                         break;
4529                 case '?':
4530                         (void) fprintf(stderr, gettext("invalid option '%c'\n"),
4531                             optopt);
4532                         usage(B_FALSE);
4533                 }
4534         }
4535         argc -= optind;
4536         argv += optind;
4537
4538         if (opts.clear)
4539                 ret = zpool_do_events_clear(&opts);
4540         else
4541                 ret = zpool_do_events_next(&opts);
4542
4543         return ret;
4544 }
4545
4546 static int
4547 get_callback(zpool_handle_t *zhp, void *data)
4548 {
4549         zprop_get_cbdata_t *cbp = (zprop_get_cbdata_t *)data;
4550         char value[MAXNAMELEN];
4551         zprop_source_t srctype;
4552         zprop_list_t *pl;
4553
4554         for (pl = cbp->cb_proplist; pl != NULL; pl = pl->pl_next) {
4555
4556                 /*
4557                  * Skip the special fake placeholder. This will also skip
4558                  * over the name property when 'all' is specified.
4559                  */
4560                 if (pl->pl_prop == ZPOOL_PROP_NAME &&
4561                     pl == cbp->cb_proplist)
4562                         continue;
4563
4564                 if (zpool_get_prop(zhp, pl->pl_prop,
4565                     value, sizeof (value), &srctype) != 0)
4566                         continue;
4567
4568                 zprop_print_one_property(zpool_get_name(zhp), cbp,
4569                     zpool_prop_to_name(pl->pl_prop), value, srctype, NULL,
4570                     NULL);
4571         }
4572         return (0);
4573 }
4574
4575 int
4576 zpool_do_get(int argc, char **argv)
4577 {
4578         zprop_get_cbdata_t cb = { 0 };
4579         zprop_list_t fake_name = { 0 };
4580         int ret;
4581
4582         if (argc < 3)
4583                 usage(B_FALSE);
4584
4585         cb.cb_first = B_TRUE;
4586         cb.cb_sources = ZPROP_SRC_ALL;
4587         cb.cb_columns[0] = GET_COL_NAME;
4588         cb.cb_columns[1] = GET_COL_PROPERTY;
4589         cb.cb_columns[2] = GET_COL_VALUE;
4590         cb.cb_columns[3] = GET_COL_SOURCE;
4591         cb.cb_type = ZFS_TYPE_POOL;
4592
4593         if (zprop_get_list(g_zfs, argv[1],  &cb.cb_proplist,
4594             ZFS_TYPE_POOL) != 0)
4595                 usage(B_FALSE);
4596
4597         if (cb.cb_proplist != NULL) {
4598                 fake_name.pl_prop = ZPOOL_PROP_NAME;
4599                 fake_name.pl_width = strlen(gettext("NAME"));
4600                 fake_name.pl_next = cb.cb_proplist;
4601                 cb.cb_proplist = &fake_name;
4602         }
4603
4604         ret = for_each_pool(argc - 2, argv + 2, B_TRUE, &cb.cb_proplist,
4605             get_callback, &cb);
4606
4607         if (cb.cb_proplist == &fake_name)
4608                 zprop_free_list(fake_name.pl_next);
4609         else
4610                 zprop_free_list(cb.cb_proplist);
4611
4612         return (ret);
4613 }
4614
4615 typedef struct set_cbdata {
4616         char *cb_propname;
4617         char *cb_value;
4618         boolean_t cb_any_successful;
4619 } set_cbdata_t;
4620
4621 int
4622 set_callback(zpool_handle_t *zhp, void *data)
4623 {
4624         int error;
4625         set_cbdata_t *cb = (set_cbdata_t *)data;
4626
4627         error = zpool_set_prop(zhp, cb->cb_propname, cb->cb_value);
4628
4629         if (!error)
4630                 cb->cb_any_successful = B_TRUE;
4631
4632         return (error);
4633 }
4634
4635 int
4636 zpool_do_set(int argc, char **argv)
4637 {
4638         set_cbdata_t cb = { 0 };
4639         int error;
4640
4641         if (argc > 1 && argv[1][0] == '-') {
4642                 (void) fprintf(stderr, gettext("invalid option '%c'\n"),
4643                     argv[1][1]);
4644                 usage(B_FALSE);
4645         }
4646
4647         if (argc < 2) {
4648                 (void) fprintf(stderr, gettext("missing property=value "
4649                     "argument\n"));
4650                 usage(B_FALSE);
4651         }
4652
4653         if (argc < 3) {
4654                 (void) fprintf(stderr, gettext("missing pool name\n"));
4655                 usage(B_FALSE);
4656         }
4657
4658         if (argc > 3) {
4659                 (void) fprintf(stderr, gettext("too many pool names\n"));
4660                 usage(B_FALSE);
4661         }
4662
4663         cb.cb_propname = argv[1];
4664         cb.cb_value = strchr(cb.cb_propname, '=');
4665         if (cb.cb_value == NULL) {
4666                 (void) fprintf(stderr, gettext("missing value in "
4667                     "property=value argument\n"));
4668                 usage(B_FALSE);
4669         }
4670
4671         *(cb.cb_value) = '\0';
4672         cb.cb_value++;
4673
4674         error = for_each_pool(argc - 2, argv + 2, B_TRUE, NULL,
4675             set_callback, &cb);
4676
4677         return (error);
4678 }
4679
4680 static int
4681 find_command_idx(char *command, int *idx)
4682 {
4683         int i;
4684
4685         for (i = 0; i < NCOMMAND; i++) {
4686                 if (command_table[i].name == NULL)
4687                         continue;
4688
4689                 if (strcmp(command, command_table[i].name) == 0) {
4690                         *idx = i;
4691                         return (0);
4692                 }
4693         }
4694         return (1);
4695 }
4696
4697 int
4698 main(int argc, char **argv)
4699 {
4700         int ret;
4701         int i = 0;
4702         char *cmdname;
4703
4704         (void) setlocale(LC_ALL, "");
4705         (void) textdomain(TEXT_DOMAIN);
4706
4707         if ((g_zfs = libzfs_init()) == NULL) {
4708                 (void) fprintf(stderr, gettext("internal error: failed to "
4709                     "initialize ZFS library\n"));
4710                 return (1);
4711         }
4712
4713         libzfs_print_on_error(g_zfs, B_TRUE);
4714
4715         opterr = 0;
4716
4717         /*
4718          * Make sure the user has specified some command.
4719          */
4720         if (argc < 2) {
4721                 (void) fprintf(stderr, gettext("missing command\n"));
4722                 usage(B_FALSE);
4723         }
4724
4725         cmdname = argv[1];
4726
4727         /*
4728          * Special case '-?'
4729          */
4730         if (strcmp(cmdname, "-?") == 0)
4731                 usage(B_TRUE);
4732
4733         zpool_set_history_str("zpool", argc, argv, history_str);
4734         verify(zpool_stage_history(g_zfs, history_str) == 0);
4735
4736         /*
4737          * Run the appropriate command.
4738          */
4739         if (find_command_idx(cmdname, &i) == 0) {
4740                 current_command = &command_table[i];
4741                 ret = command_table[i].func(argc - 1, argv + 1);
4742         } else if (strchr(cmdname, '=')) {
4743                 verify(find_command_idx("set", &i) == 0);
4744                 current_command = &command_table[i];
4745                 ret = command_table[i].func(argc, argv);
4746         } else if (strcmp(cmdname, "freeze") == 0 && argc == 3) {
4747                 /*
4748                  * 'freeze' is a vile debugging abomination, so we treat
4749                  * it as such.
4750                  */
4751                 char buf[16384];
4752                 int fd = open(ZFS_DEV, O_RDWR);
4753                 (void) strcpy((void *)buf, argv[2]);
4754                 return (!!ioctl(fd, ZFS_IOC_POOL_FREEZE, buf));
4755         } else {
4756                 (void) fprintf(stderr, gettext("unrecognized "
4757                     "command '%s'\n"), cmdname);
4758                 usage(B_FALSE);
4759                 ret = 1;
4760         }
4761
4762         libzfs_fini(g_zfs);
4763
4764         /*
4765          * The 'ZFS_ABORT' environment variable causes us to dump core on exit
4766          * for the purposes of running ::findleaks.
4767          */
4768         if (getenv("ZFS_ABORT") != NULL) {
4769                 (void) printf("dumping core by request\n");
4770                 abort();
4771         }
4772
4773         return (ret);
4774 }