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