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freebsd-dev/cmd/zpool/zpool_main.c
Josef 'Jeff' Sipek 8a5fc74880 Illumos 6659 - nvlist_free(NULL) is a no-op 
6659 nvlist_free(NULL) is a no-op
Reviewed by: Toomas Soome <tsoome@me.com>
Reviewed by: Marcel Telka <marcel@telka.sk>
Approved by: Robert Mustacchi <rm@joyent.com>

References:
  https://www.illumos.org/issues/6659
  https://github.com/illumos/illumos-gate/commit/aab83bb

Ported-by: David Quigley <dpquigl@davequigley.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #4566
2016-04-27 15:58:23 -07:00

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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright 2011 Nexenta Systems, Inc. All rights reserved.
* Copyright (c) 2011, 2015 by Delphix. All rights reserved.
* Copyright (c) 2012 by Frederik Wessels. All rights reserved.
* Copyright (c) 2012 by Cyril Plisko. All rights reserved.
* Copyright (c) 2013 by Prasad Joshi (sTec). All rights reserved.
*/
#include <assert.h>
#include <ctype.h>
#include <dirent.h>
#include <errno.h>
#include <fcntl.h>
#include <libgen.h>
#include <libintl.h>
#include <libuutil.h>
#include <locale.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include <unistd.h>
#include <priv.h>
#include <pwd.h>
#include <zone.h>
#include <zfs_prop.h>
#include <sys/fs/zfs.h>
#include <sys/stat.h>
#include <sys/fm/util.h>
#include <sys/fm/protocol.h>
#include <sys/zfs_ioctl.h>
#include <libzfs.h>
#include "zpool_util.h"
#include "zfs_comutil.h"
#include "zfeature_common.h"
#include "statcommon.h"
static int zpool_do_create(int, char **);
static int zpool_do_destroy(int, char **);
static int zpool_do_add(int, char **);
static int zpool_do_remove(int, char **);
static int zpool_do_labelclear(int, char **);
static int zpool_do_list(int, char **);
static int zpool_do_iostat(int, char **);
static int zpool_do_status(int, char **);
static int zpool_do_online(int, char **);
static int zpool_do_offline(int, char **);
static int zpool_do_clear(int, char **);
static int zpool_do_reopen(int, char **);
static int zpool_do_reguid(int, char **);
static int zpool_do_attach(int, char **);
static int zpool_do_detach(int, char **);
static int zpool_do_replace(int, char **);
static int zpool_do_split(int, char **);
static int zpool_do_scrub(int, char **);
static int zpool_do_import(int, char **);
static int zpool_do_export(int, char **);
static int zpool_do_upgrade(int, char **);
static int zpool_do_history(int, char **);
static int zpool_do_events(int, char **);
static int zpool_do_get(int, char **);
static int zpool_do_set(int, char **);
/*
* These libumem hooks provide a reasonable set of defaults for the allocator's
* debugging facilities.
*/
#ifdef DEBUG
const char *
_umem_debug_init(void)
{
return ("default,verbose"); /* $UMEM_DEBUG setting */
}
const char *
_umem_logging_init(void)
{
return ("fail,contents"); /* $UMEM_LOGGING setting */
}
#endif
typedef enum {
HELP_ADD,
HELP_ATTACH,
HELP_CLEAR,
HELP_CREATE,
HELP_DESTROY,
HELP_DETACH,
HELP_EXPORT,
HELP_HISTORY,
HELP_IMPORT,
HELP_IOSTAT,
HELP_LABELCLEAR,
HELP_LIST,
HELP_OFFLINE,
HELP_ONLINE,
HELP_REPLACE,
HELP_REMOVE,
HELP_SCRUB,
HELP_STATUS,
HELP_UPGRADE,
HELP_EVENTS,
HELP_GET,
HELP_SET,
HELP_SPLIT,
HELP_REGUID,
HELP_REOPEN
} zpool_help_t;
typedef struct zpool_command {
const char *name;
int (*func)(int, char **);
zpool_help_t usage;
} zpool_command_t;
/*
* Master command table. Each ZFS command has a name, associated function, and
* usage message. The usage messages need to be internationalized, so we have
* to have a function to return the usage message based on a command index.
*
* These commands are organized according to how they are displayed in the usage
* message. An empty command (one with a NULL name) indicates an empty line in
* the generic usage message.
*/
static zpool_command_t command_table[] = {
{ "create", zpool_do_create, HELP_CREATE },
{ "destroy", zpool_do_destroy, HELP_DESTROY },
{ NULL },
{ "add", zpool_do_add, HELP_ADD },
{ "remove", zpool_do_remove, HELP_REMOVE },
{ NULL },
{ "labelclear", zpool_do_labelclear, HELP_LABELCLEAR },
{ NULL },
{ "list", zpool_do_list, HELP_LIST },
{ "iostat", zpool_do_iostat, HELP_IOSTAT },
{ "status", zpool_do_status, HELP_STATUS },
{ NULL },
{ "online", zpool_do_online, HELP_ONLINE },
{ "offline", zpool_do_offline, HELP_OFFLINE },
{ "clear", zpool_do_clear, HELP_CLEAR },
{ "reopen", zpool_do_reopen, HELP_REOPEN },
{ NULL },
{ "attach", zpool_do_attach, HELP_ATTACH },
{ "detach", zpool_do_detach, HELP_DETACH },
{ "replace", zpool_do_replace, HELP_REPLACE },
{ "split", zpool_do_split, HELP_SPLIT },
{ NULL },
{ "scrub", zpool_do_scrub, HELP_SCRUB },
{ NULL },
{ "import", zpool_do_import, HELP_IMPORT },
{ "export", zpool_do_export, HELP_EXPORT },
{ "upgrade", zpool_do_upgrade, HELP_UPGRADE },
{ "reguid", zpool_do_reguid, HELP_REGUID },
{ NULL },
{ "history", zpool_do_history, HELP_HISTORY },
{ "events", zpool_do_events, HELP_EVENTS },
{ NULL },
{ "get", zpool_do_get, HELP_GET },
{ "set", zpool_do_set, HELP_SET },
};
#define NCOMMAND (sizeof (command_table) / sizeof (command_table[0]))
static zpool_command_t *current_command;
static char history_str[HIS_MAX_RECORD_LEN];
static boolean_t log_history = B_TRUE;
static uint_t timestamp_fmt = NODATE;
static const char *
get_usage(zpool_help_t idx) {
switch (idx) {
case HELP_ADD:
return (gettext("\tadd [-fgLnP] [-o property=value] "
"<pool> <vdev> ...\n"));
case HELP_ATTACH:
return (gettext("\tattach [-f] [-o property=value] "
"<pool> <device> <new-device>\n"));
case HELP_CLEAR:
return (gettext("\tclear [-nF] <pool> [device]\n"));
case HELP_CREATE:
return (gettext("\tcreate [-fnd] [-o property=value] ... \n"
"\t [-O file-system-property=value] ... \n"
"\t [-m mountpoint] [-R root] <pool> <vdev> ...\n"));
case HELP_DESTROY:
return (gettext("\tdestroy [-f] <pool>\n"));
case HELP_DETACH:
return (gettext("\tdetach <pool> <device>\n"));
case HELP_EXPORT:
return (gettext("\texport [-af] <pool> ...\n"));
case HELP_HISTORY:
return (gettext("\thistory [-il] [<pool>] ...\n"));
case HELP_IMPORT:
return (gettext("\timport [-d dir] [-D]\n"
"\timport [-d dir | -c cachefile] [-F [-n]] <pool | id>\n"
"\timport [-o mntopts] [-o property=value] ... \n"
"\t [-d dir | -c cachefile] [-D] [-f] [-m] [-N] "
"[-R root] [-F [-n]] -a\n"
"\timport [-o mntopts] [-o property=value] ... \n"
"\t [-d dir | -c cachefile] [-D] [-f] [-m] [-N] "
"[-R root] [-F [-n]]\n"
"\t <pool | id> [newpool]\n"));
case HELP_IOSTAT:
return (gettext("\tiostat [-gLPvy] [-T d|u] [pool] ... "
"[interval [count]]\n"));
case HELP_LABELCLEAR:
return (gettext("\tlabelclear [-f] <vdev>\n"));
case HELP_LIST:
return (gettext("\tlist [-gHLPv] [-o property[,...]] "
"[-T d|u] [pool] ... [interval [count]]\n"));
case HELP_OFFLINE:
return (gettext("\toffline [-t] <pool> <device> ...\n"));
case HELP_ONLINE:
return (gettext("\tonline <pool> <device> ...\n"));
case HELP_REPLACE:
return (gettext("\treplace [-f] [-o property=value] "
"<pool> <device> [new-device]\n"));
case HELP_REMOVE:
return (gettext("\tremove <pool> <device> ...\n"));
case HELP_REOPEN:
return (gettext("\treopen <pool>\n"));
case HELP_SCRUB:
return (gettext("\tscrub [-s] <pool> ...\n"));
case HELP_STATUS:
return (gettext("\tstatus [-gLPvxD] [-T d|u] [pool] ... "
"[interval [count]]\n"));
case HELP_UPGRADE:
return (gettext("\tupgrade\n"
"\tupgrade -v\n"
"\tupgrade [-V version] <-a | pool ...>\n"));
case HELP_EVENTS:
return (gettext("\tevents [-vHfc]\n"));
case HELP_GET:
return (gettext("\tget [-pH] <\"all\" | property[,...]> "
"<pool> ...\n"));
case HELP_SET:
return (gettext("\tset <property=value> <pool> \n"));
case HELP_SPLIT:
return (gettext("\tsplit [-gLnP] [-R altroot] [-o mntopts]\n"
"\t [-o property=value] <pool> <newpool> "
"[<device> ...]\n"));
case HELP_REGUID:
return (gettext("\treguid <pool>\n"));
}
abort();
/* NOTREACHED */
}
/*
* Callback routine that will print out a pool property value.
*/
static int
print_prop_cb(int prop, void *cb)
{
FILE *fp = cb;
(void) fprintf(fp, "\t%-15s ", zpool_prop_to_name(prop));
if (zpool_prop_readonly(prop))
(void) fprintf(fp, " NO ");
else
(void) fprintf(fp, " YES ");
if (zpool_prop_values(prop) == NULL)
(void) fprintf(fp, "-\n");
else
(void) fprintf(fp, "%s\n", zpool_prop_values(prop));
return (ZPROP_CONT);
}
/*
* Display usage message. If we're inside a command, display only the usage for
* that command. Otherwise, iterate over the entire command table and display
* a complete usage message.
*/
void
usage(boolean_t requested)
{
FILE *fp = requested ? stdout : stderr;
if (current_command == NULL) {
int i;
(void) fprintf(fp, gettext("usage: zpool command args ...\n"));
(void) fprintf(fp,
gettext("where 'command' is one of the following:\n\n"));
for (i = 0; i < NCOMMAND; i++) {
if (command_table[i].name == NULL)
(void) fprintf(fp, "\n");
else
(void) fprintf(fp, "%s",
get_usage(command_table[i].usage));
}
} else {
(void) fprintf(fp, gettext("usage:\n"));
(void) fprintf(fp, "%s", get_usage(current_command->usage));
}
if (current_command != NULL &&
((strcmp(current_command->name, "set") == 0) ||
(strcmp(current_command->name, "get") == 0) ||
(strcmp(current_command->name, "list") == 0))) {
(void) fprintf(fp,
gettext("\nthe following properties are supported:\n"));
(void) fprintf(fp, "\n\t%-15s %s %s\n\n",
"PROPERTY", "EDIT", "VALUES");
/* Iterate over all properties */
(void) zprop_iter(print_prop_cb, fp, B_FALSE, B_TRUE,
ZFS_TYPE_POOL);
(void) fprintf(fp, "\t%-15s ", "feature@...");
(void) fprintf(fp, "YES disabled | enabled | active\n");
(void) fprintf(fp, gettext("\nThe feature@ properties must be "
"appended with a feature name.\nSee zpool-features(5).\n"));
}
/*
* See comments at end of main().
*/
if (getenv("ZFS_ABORT") != NULL) {
(void) printf("dumping core by request\n");
abort();
}
exit(requested ? 0 : 2);
}
void
print_vdev_tree(zpool_handle_t *zhp, const char *name, nvlist_t *nv, int indent,
boolean_t print_logs, int name_flags)
{
nvlist_t **child;
uint_t c, children;
char *vname;
if (name != NULL)
(void) printf("\t%*s%s\n", indent, "", name);
if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
&child, &children) != 0)
return;
for (c = 0; c < children; c++) {
uint64_t is_log = B_FALSE;
(void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_LOG,
&is_log);
if ((is_log && !print_logs) || (!is_log && print_logs))
continue;
vname = zpool_vdev_name(g_zfs, zhp, child[c], name_flags);
print_vdev_tree(zhp, vname, child[c], indent + 2,
B_FALSE, name_flags);
free(vname);
}
}
static boolean_t
prop_list_contains_feature(nvlist_t *proplist)
{
nvpair_t *nvp;
for (nvp = nvlist_next_nvpair(proplist, NULL); NULL != nvp;
nvp = nvlist_next_nvpair(proplist, nvp)) {
if (zpool_prop_feature(nvpair_name(nvp)))
return (B_TRUE);
}
return (B_FALSE);
}
/*
* Add a property pair (name, string-value) into a property nvlist.
*/
static int
add_prop_list(const char *propname, char *propval, nvlist_t **props,
boolean_t poolprop)
{
zpool_prop_t prop = ZPROP_INVAL;
zfs_prop_t fprop;
nvlist_t *proplist;
const char *normnm;
char *strval;
if (*props == NULL &&
nvlist_alloc(props, NV_UNIQUE_NAME, 0) != 0) {
(void) fprintf(stderr,
gettext("internal error: out of memory\n"));
return (1);
}
proplist = *props;
if (poolprop) {
const char *vname = zpool_prop_to_name(ZPOOL_PROP_VERSION);
if ((prop = zpool_name_to_prop(propname)) == ZPROP_INVAL &&
!zpool_prop_feature(propname)) {
(void) fprintf(stderr, gettext("property '%s' is "
"not a valid pool property\n"), propname);
return (2);
}
/*
* feature@ properties and version should not be specified
* at the same time.
*/
if ((prop == ZPROP_INVAL && zpool_prop_feature(propname) &&
nvlist_exists(proplist, vname)) ||
(prop == ZPOOL_PROP_VERSION &&
prop_list_contains_feature(proplist))) {
(void) fprintf(stderr, gettext("'feature@' and "
"'version' properties cannot be specified "
"together\n"));
return (2);
}
if (zpool_prop_feature(propname))
normnm = propname;
else
normnm = zpool_prop_to_name(prop);
} else {
if ((fprop = zfs_name_to_prop(propname)) != ZPROP_INVAL) {
normnm = zfs_prop_to_name(fprop);
} else {
normnm = propname;
}
}
if (nvlist_lookup_string(proplist, normnm, &strval) == 0 &&
prop != ZPOOL_PROP_CACHEFILE) {
(void) fprintf(stderr, gettext("property '%s' "
"specified multiple times\n"), propname);
return (2);
}
if (nvlist_add_string(proplist, normnm, propval) != 0) {
(void) fprintf(stderr, gettext("internal "
"error: out of memory\n"));
return (1);
}
return (0);
}
/*
* Set a default property pair (name, string-value) in a property nvlist
*/
static int
add_prop_list_default(const char *propname, char *propval, nvlist_t **props,
boolean_t poolprop)
{
char *pval;
if (nvlist_lookup_string(*props, propname, &pval) == 0)
return (0);
return (add_prop_list(propname, propval, props, B_TRUE));
}
/*
* zpool add [-fgLnP] [-o property=value] <pool> <vdev> ...
*
* -f Force addition of devices, even if they appear in use
* -g Display guid for individual vdev name.
* -L Follow links when resolving vdev path name.
* -n Do not add the devices, but display the resulting layout if
* they were to be added.
* -o Set property=value.
* -P Display full path for vdev name.
*
* Adds the given vdevs to 'pool'. As with create, the bulk of this work is
* handled by get_vdev_spec(), which constructs the nvlist needed to pass to
* libzfs.
*/
int
zpool_do_add(int argc, char **argv)
{
boolean_t force = B_FALSE;
boolean_t dryrun = B_FALSE;
int name_flags = 0;
int c;
nvlist_t *nvroot;
char *poolname;
int ret;
zpool_handle_t *zhp;
nvlist_t *config;
nvlist_t *props = NULL;
char *propval;
/* check options */
while ((c = getopt(argc, argv, "fgLno:P")) != -1) {
switch (c) {
case 'f':
force = B_TRUE;
break;
case 'g':
name_flags |= VDEV_NAME_GUID;
break;
case 'L':
name_flags |= VDEV_NAME_FOLLOW_LINKS;
break;
case 'n':
dryrun = B_TRUE;
break;
case 'o':
if ((propval = strchr(optarg, '=')) == NULL) {
(void) fprintf(stderr, gettext("missing "
"'=' for -o option\n"));
usage(B_FALSE);
}
*propval = '\0';
propval++;
if ((strcmp(optarg, ZPOOL_CONFIG_ASHIFT) != 0) ||
(add_prop_list(optarg, propval, &props, B_TRUE)))
usage(B_FALSE);
break;
case 'P':
name_flags |= VDEV_NAME_PATH;
break;
case '?':
(void) fprintf(stderr, gettext("invalid option '%c'\n"),
optopt);
usage(B_FALSE);
}
}
argc -= optind;
argv += optind;
/* get pool name and check number of arguments */
if (argc < 1) {
(void) fprintf(stderr, gettext("missing pool name argument\n"));
usage(B_FALSE);
}
if (argc < 2) {
(void) fprintf(stderr, gettext("missing vdev specification\n"));
usage(B_FALSE);
}
poolname = argv[0];
argc--;
argv++;
if ((zhp = zpool_open(g_zfs, poolname)) == NULL)
return (1);
if ((config = zpool_get_config(zhp, NULL)) == NULL) {
(void) fprintf(stderr, gettext("pool '%s' is unavailable\n"),
poolname);
zpool_close(zhp);
return (1);
}
/* pass off to get_vdev_spec for processing */
nvroot = make_root_vdev(zhp, props, force, !force, B_FALSE, dryrun,
argc, argv);
if (nvroot == NULL) {
zpool_close(zhp);
return (1);
}
if (dryrun) {
nvlist_t *poolnvroot;
nvlist_t **l2child;
uint_t l2children, c;
char *vname;
boolean_t hadcache = B_FALSE;
verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
&poolnvroot) == 0);
(void) printf(gettext("would update '%s' to the following "
"configuration:\n"), zpool_get_name(zhp));
/* print original main pool and new tree */
print_vdev_tree(zhp, poolname, poolnvroot, 0, B_FALSE,
name_flags);
print_vdev_tree(zhp, NULL, nvroot, 0, B_FALSE, name_flags);
/* Do the same for the logs */
if (num_logs(poolnvroot) > 0) {
print_vdev_tree(zhp, "logs", poolnvroot, 0, B_TRUE,
name_flags);
print_vdev_tree(zhp, NULL, nvroot, 0, B_TRUE,
name_flags);
} else if (num_logs(nvroot) > 0) {
print_vdev_tree(zhp, "logs", nvroot, 0, B_TRUE,
name_flags);
}
/* Do the same for the caches */
if (nvlist_lookup_nvlist_array(poolnvroot, ZPOOL_CONFIG_L2CACHE,
&l2child, &l2children) == 0 && l2children) {
hadcache = B_TRUE;
(void) printf(gettext("\tcache\n"));
for (c = 0; c < l2children; c++) {
vname = zpool_vdev_name(g_zfs, NULL,
l2child[c], name_flags);
(void) printf("\t %s\n", vname);
free(vname);
}
}
if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_L2CACHE,
&l2child, &l2children) == 0 && l2children) {
if (!hadcache)
(void) printf(gettext("\tcache\n"));
for (c = 0; c < l2children; c++) {
vname = zpool_vdev_name(g_zfs, NULL,
l2child[c], name_flags);
(void) printf("\t %s\n", vname);
free(vname);
}
}
ret = 0;
} else {
ret = (zpool_add(zhp, nvroot) != 0);
}
nvlist_free(props);
nvlist_free(nvroot);
zpool_close(zhp);
return (ret);
}
/*
* zpool remove <pool> <vdev> ...
*
* Removes the given vdev from the pool. Currently, this supports removing
* spares, cache, and log devices from the pool.
*/
int
zpool_do_remove(int argc, char **argv)
{
char *poolname;
int i, ret = 0;
zpool_handle_t *zhp;
argc--;
argv++;
/* get pool name and check number of arguments */
if (argc < 1) {
(void) fprintf(stderr, gettext("missing pool name argument\n"));
usage(B_FALSE);
}
if (argc < 2) {
(void) fprintf(stderr, gettext("missing device\n"));
usage(B_FALSE);
}
poolname = argv[0];
if ((zhp = zpool_open(g_zfs, poolname)) == NULL)
return (1);
for (i = 1; i < argc; i++) {
if (zpool_vdev_remove(zhp, argv[i]) != 0)
ret = 1;
}
return (ret);
}
/*
* zpool labelclear <vdev>
*
* Verifies that the vdev is not active and zeros out the label information
* on the device.
*/
int
zpool_do_labelclear(int argc, char **argv)
{
char *vdev, *name;
int c, fd = -1, ret = 0;
pool_state_t state;
boolean_t inuse = B_FALSE;
boolean_t force = B_FALSE;
/* check options */
while ((c = getopt(argc, argv, "f")) != -1) {
switch (c) {
case 'f':
force = B_TRUE;
break;
default:
(void) fprintf(stderr, gettext("invalid option '%c'\n"),
optopt);
usage(B_FALSE);
}
}
argc -= optind;
argv += optind;
/* get vdev name */
if (argc < 1) {
(void) fprintf(stderr, gettext("missing vdev device name\n"));
usage(B_FALSE);
}
vdev = argv[0];
if ((fd = open(vdev, O_RDWR)) < 0) {
(void) fprintf(stderr, gettext("Unable to open %s\n"), vdev);
return (B_FALSE);
}
name = NULL;
if (zpool_in_use(g_zfs, fd, &state, &name, &inuse) != 0) {
if (force)
goto wipe_label;
(void) fprintf(stderr,
gettext("Unable to determine pool state for %s\n"
"Use -f to force the clearing any label data\n"), vdev);
return (1);
}
if (inuse) {
switch (state) {
default:
case POOL_STATE_ACTIVE:
case POOL_STATE_SPARE:
case POOL_STATE_L2CACHE:
(void) fprintf(stderr,
gettext("labelclear operation failed.\n"
"\tVdev %s is a member (%s), of pool \"%s\".\n"
"\tTo remove label information from this device, "
"export or destroy\n\tthe pool, or remove %s from "
"the configuration of this pool\n\tand retry the "
"labelclear operation.\n"),
vdev, zpool_pool_state_to_name(state), name, vdev);
ret = 1;
goto errout;
case POOL_STATE_EXPORTED:
if (force)
break;
(void) fprintf(stderr,
gettext("labelclear operation failed.\n\tVdev "
"%s is a member of the exported pool \"%s\".\n"
"\tUse \"zpool labelclear -f %s\" to force the "
"removal of label\n\tinformation.\n"),
vdev, name, vdev);
ret = 1;
goto errout;
case POOL_STATE_POTENTIALLY_ACTIVE:
if (force)
break;
(void) fprintf(stderr,
gettext("labelclear operation failed.\n"
"\tVdev %s is a member of the pool \"%s\".\n"
"\tThis pool is unknown to this system, but may "
"be active on\n\tanother system. Use "
"\'zpool labelclear -f %s\' to force the\n"
"\tremoval of label information.\n"),
vdev, name, vdev);
ret = 1;
goto errout;
case POOL_STATE_DESTROYED:
/* inuse should never be set for a destroyed pool... */
break;
}
}
wipe_label:
if (zpool_clear_label(fd) != 0) {
(void) fprintf(stderr,
gettext("Label clear failed on vdev %s\n"), vdev);
ret = 1;
}
errout:
close(fd);
if (name != NULL)
free(name);
return (ret);
}
/*
* zpool create [-fnd] [-o property=value] ...
* [-O file-system-property=value] ...
* [-R root] [-m mountpoint] <pool> <dev> ...
*
* -f Force creation, even if devices appear in use
* -n Do not create the pool, but display the resulting layout if it
* were to be created.
* -R Create a pool under an alternate root
* -m Set default mountpoint for the root dataset. By default it's
* '/<pool>'
* -o Set property=value.
* -d Don't automatically enable all supported pool features
* (individual features can be enabled with -o).
* -O Set fsproperty=value in the pool's root file system
*
* Creates the named pool according to the given vdev specification. The
* bulk of the vdev processing is done in get_vdev_spec() in zpool_vdev.c. Once
* we get the nvlist back from get_vdev_spec(), we either print out the contents
* (if '-n' was specified), or pass it to libzfs to do the creation.
*/
int
zpool_do_create(int argc, char **argv)
{
boolean_t force = B_FALSE;
boolean_t dryrun = B_FALSE;
boolean_t enable_all_pool_feat = B_TRUE;
int c;
nvlist_t *nvroot = NULL;
char *poolname;
char *tname = NULL;
int ret = 1;
char *altroot = NULL;
char *mountpoint = NULL;
nvlist_t *fsprops = NULL;
nvlist_t *props = NULL;
char *propval;
/* check options */
while ((c = getopt(argc, argv, ":fndR:m:o:O:t:")) != -1) {
switch (c) {
case 'f':
force = B_TRUE;
break;
case 'n':
dryrun = B_TRUE;
break;
case 'd':
enable_all_pool_feat = B_FALSE;
break;
case 'R':
altroot = optarg;
if (add_prop_list(zpool_prop_to_name(
ZPOOL_PROP_ALTROOT), optarg, &props, B_TRUE))
goto errout;
if (add_prop_list_default(zpool_prop_to_name(
ZPOOL_PROP_CACHEFILE), "none", &props, B_TRUE))
goto errout;
break;
case 'm':
/* Equivalent to -O mountpoint=optarg */
mountpoint = optarg;
break;
case 'o':
if ((propval = strchr(optarg, '=')) == NULL) {
(void) fprintf(stderr, gettext("missing "
"'=' for -o option\n"));
goto errout;
}
*propval = '\0';
propval++;
if (add_prop_list(optarg, propval, &props, B_TRUE))
goto errout;
/*
* If the user is creating a pool that doesn't support
* feature flags, don't enable any features.
*/
if (zpool_name_to_prop(optarg) == ZPOOL_PROP_VERSION) {
char *end;
u_longlong_t ver;
ver = strtoull(propval, &end, 10);
if (*end == '\0' &&
ver < SPA_VERSION_FEATURES) {
enable_all_pool_feat = B_FALSE;
}
}
break;
case 'O':
if ((propval = strchr(optarg, '=')) == NULL) {
(void) fprintf(stderr, gettext("missing "
"'=' for -O option\n"));
goto errout;
}
*propval = '\0';
propval++;
/*
* Mountpoints are checked and then added later.
* Uniquely among properties, they can be specified
* more than once, to avoid conflict with -m.
*/
if (0 == strcmp(optarg,
zfs_prop_to_name(ZFS_PROP_MOUNTPOINT))) {
mountpoint = propval;
} else if (add_prop_list(optarg, propval, &fsprops,
B_FALSE)) {
goto errout;
}
break;
case 't':
/*
* Sanity check temporary pool name.
*/
if (strchr(optarg, '/') != NULL) {
(void) fprintf(stderr, gettext("cannot create "
"'%s': invalid character '/' in temporary "
"name\n"), optarg);
(void) fprintf(stderr, gettext("use 'zfs "
"create' to create a dataset\n"));
goto errout;
}
if (add_prop_list(zpool_prop_to_name(
ZPOOL_PROP_TNAME), optarg, &props, B_TRUE))
goto errout;
if (add_prop_list_default(zpool_prop_to_name(
ZPOOL_PROP_CACHEFILE), "none", &props, B_TRUE))
goto errout;
tname = optarg;
break;
case ':':
(void) fprintf(stderr, gettext("missing argument for "
"'%c' option\n"), optopt);
goto badusage;
case '?':
(void) fprintf(stderr, gettext("invalid option '%c'\n"),
optopt);
goto badusage;
}
}
argc -= optind;
argv += optind;
/* get pool name and check number of arguments */
if (argc < 1) {
(void) fprintf(stderr, gettext("missing pool name argument\n"));
goto badusage;
}
if (argc < 2) {
(void) fprintf(stderr, gettext("missing vdev specification\n"));
goto badusage;
}
poolname = argv[0];
/*
* As a special case, check for use of '/' in the name, and direct the
* user to use 'zfs create' instead.
*/
if (strchr(poolname, '/') != NULL) {
(void) fprintf(stderr, gettext("cannot create '%s': invalid "
"character '/' in pool name\n"), poolname);
(void) fprintf(stderr, gettext("use 'zfs create' to "
"create a dataset\n"));
goto errout;
}
/* pass off to get_vdev_spec for bulk processing */
nvroot = make_root_vdev(NULL, props, force, !force, B_FALSE, dryrun,
argc - 1, argv + 1);
if (nvroot == NULL)
goto errout;
/* make_root_vdev() allows 0 toplevel children if there are spares */
if (!zfs_allocatable_devs(nvroot)) {
(void) fprintf(stderr, gettext("invalid vdev "
"specification: at least one toplevel vdev must be "
"specified\n"));
goto errout;
}
if (altroot != NULL && altroot[0] != '/') {
(void) fprintf(stderr, gettext("invalid alternate root '%s': "
"must be an absolute path\n"), altroot);
goto errout;
}
/*
* Check the validity of the mountpoint and direct the user to use the
* '-m' mountpoint option if it looks like its in use.
*/
if (mountpoint == NULL ||
(strcmp(mountpoint, ZFS_MOUNTPOINT_LEGACY) != 0 &&
strcmp(mountpoint, ZFS_MOUNTPOINT_NONE) != 0)) {
char buf[MAXPATHLEN];
DIR *dirp;
if (mountpoint && mountpoint[0] != '/') {
(void) fprintf(stderr, gettext("invalid mountpoint "
"'%s': must be an absolute path, 'legacy', or "
"'none'\n"), mountpoint);
goto errout;
}
if (mountpoint == NULL) {
if (altroot != NULL)
(void) snprintf(buf, sizeof (buf), "%s/%s",
altroot, poolname);
else
(void) snprintf(buf, sizeof (buf), "/%s",
poolname);
} else {
if (altroot != NULL)
(void) snprintf(buf, sizeof (buf), "%s%s",
altroot, mountpoint);
else
(void) snprintf(buf, sizeof (buf), "%s",
mountpoint);
}
if ((dirp = opendir(buf)) == NULL && errno != ENOENT) {
(void) fprintf(stderr, gettext("mountpoint '%s' : "
"%s\n"), buf, strerror(errno));
(void) fprintf(stderr, gettext("use '-m' "
"option to provide a different default\n"));
goto errout;
} else if (dirp) {
int count = 0;
while (count < 3 && readdir(dirp) != NULL)
count++;
(void) closedir(dirp);
if (count > 2) {
(void) fprintf(stderr, gettext("mountpoint "
"'%s' exists and is not empty\n"), buf);
(void) fprintf(stderr, gettext("use '-m' "
"option to provide a "
"different default\n"));
goto errout;
}
}
}
/*
* Now that the mountpoint's validity has been checked, ensure that
* the property is set appropriately prior to creating the pool.
*/
if (mountpoint != NULL) {
ret = add_prop_list(zfs_prop_to_name(ZFS_PROP_MOUNTPOINT),
mountpoint, &fsprops, B_FALSE);
if (ret != 0)
goto errout;
}
ret = 1;
if (dryrun) {
/*
* For a dry run invocation, print out a basic message and run
* through all the vdevs in the list and print out in an
* appropriate hierarchy.
*/
(void) printf(gettext("would create '%s' with the "
"following layout:\n\n"), poolname);
print_vdev_tree(NULL, poolname, nvroot, 0, B_FALSE, 0);
if (num_logs(nvroot) > 0)
print_vdev_tree(NULL, "logs", nvroot, 0, B_TRUE, 0);
ret = 0;
} else {
/*
* Hand off to libzfs.
*/
if (enable_all_pool_feat) {
spa_feature_t i;
for (i = 0; i < SPA_FEATURES; i++) {
char propname[MAXPATHLEN];
zfeature_info_t *feat = &spa_feature_table[i];
(void) snprintf(propname, sizeof (propname),
"feature@%s", feat->fi_uname);
/*
* Skip feature if user specified it manually
* on the command line.
*/
if (nvlist_exists(props, propname))
continue;
ret = add_prop_list(propname,
ZFS_FEATURE_ENABLED, &props, B_TRUE);
if (ret != 0)
goto errout;
}
}
ret = 1;
if (zpool_create(g_zfs, poolname,
nvroot, props, fsprops) == 0) {
zfs_handle_t *pool = zfs_open(g_zfs,
tname ? tname : poolname, ZFS_TYPE_FILESYSTEM);
if (pool != NULL) {
if (zfs_mount(pool, NULL, 0) == 0)
ret = zfs_shareall(pool);
zfs_close(pool);
}
} else if (libzfs_errno(g_zfs) == EZFS_INVALIDNAME) {
(void) fprintf(stderr, gettext("pool name may have "
"been omitted\n"));
}
}
errout:
nvlist_free(nvroot);
nvlist_free(fsprops);
nvlist_free(props);
return (ret);
badusage:
nvlist_free(fsprops);
nvlist_free(props);
usage(B_FALSE);
return (2);
}
/*
* zpool destroy <pool>
*
* -f Forcefully unmount any datasets
*
* Destroy the given pool. Automatically unmounts any datasets in the pool.
*/
int
zpool_do_destroy(int argc, char **argv)
{
boolean_t force = B_FALSE;
int c;
char *pool;
zpool_handle_t *zhp;
int ret;
/* check options */
while ((c = getopt(argc, argv, "f")) != -1) {
switch (c) {
case 'f':
force = B_TRUE;
break;
case '?':
(void) fprintf(stderr, gettext("invalid option '%c'\n"),
optopt);
usage(B_FALSE);
}
}
argc -= optind;
argv += optind;
/* check arguments */
if (argc < 1) {
(void) fprintf(stderr, gettext("missing pool argument\n"));
usage(B_FALSE);
}
if (argc > 1) {
(void) fprintf(stderr, gettext("too many arguments\n"));
usage(B_FALSE);
}
pool = argv[0];
if ((zhp = zpool_open_canfail(g_zfs, pool)) == NULL) {
/*
* As a special case, check for use of '/' in the name, and
* direct the user to use 'zfs destroy' instead.
*/
if (strchr(pool, '/') != NULL)
(void) fprintf(stderr, gettext("use 'zfs destroy' to "
"destroy a dataset\n"));
return (1);
}
if (zpool_disable_datasets(zhp, force) != 0) {
(void) fprintf(stderr, gettext("could not destroy '%s': "
"could not unmount datasets\n"), zpool_get_name(zhp));
return (1);
}
/* The history must be logged as part of the export */
log_history = B_FALSE;
ret = (zpool_destroy(zhp, history_str) != 0);
zpool_close(zhp);
return (ret);
}
typedef struct export_cbdata {
boolean_t force;
boolean_t hardforce;
} export_cbdata_t;
/*
* Export one pool
*/
int
zpool_export_one(zpool_handle_t *zhp, void *data)
{
export_cbdata_t *cb = data;
if (zpool_disable_datasets(zhp, cb->force) != 0)
return (1);
/* The history must be logged as part of the export */
log_history = B_FALSE;
if (cb->hardforce) {
if (zpool_export_force(zhp, history_str) != 0)
return (1);
} else if (zpool_export(zhp, cb->force, history_str) != 0) {
return (1);
}
return (0);
}
/*
* zpool export [-f] <pool> ...
*
* -a Export all pools
* -f Forcefully unmount datasets
*
* Export the given pools. By default, the command will attempt to cleanly
* unmount any active datasets within the pool. If the '-f' flag is specified,
* then the datasets will be forcefully unmounted.
*/
int
zpool_do_export(int argc, char **argv)
{
export_cbdata_t cb;
boolean_t do_all = B_FALSE;
boolean_t force = B_FALSE;
boolean_t hardforce = B_FALSE;
int c, ret;
/* check options */
while ((c = getopt(argc, argv, "afF")) != -1) {
switch (c) {
case 'a':
do_all = B_TRUE;
break;
case 'f':
force = B_TRUE;
break;
case 'F':
hardforce = B_TRUE;
break;
case '?':
(void) fprintf(stderr, gettext("invalid option '%c'\n"),
optopt);
usage(B_FALSE);
}
}
cb.force = force;
cb.hardforce = hardforce;
argc -= optind;
argv += optind;
if (do_all) {
if (argc != 0) {
(void) fprintf(stderr, gettext("too many arguments\n"));
usage(B_FALSE);
}
return (for_each_pool(argc, argv, B_TRUE, NULL,
zpool_export_one, &cb));
}
/* check arguments */
if (argc < 1) {
(void) fprintf(stderr, gettext("missing pool argument\n"));
usage(B_FALSE);
}
ret = for_each_pool(argc, argv, B_TRUE, NULL, zpool_export_one, &cb);
return (ret);
}
/*
* Given a vdev configuration, determine the maximum width needed for the device
* name column.
*/
static int
max_width(zpool_handle_t *zhp, nvlist_t *nv, int depth, int max,
int name_flags)
{
char *name;
nvlist_t **child;
uint_t c, children;
int ret;
name = zpool_vdev_name(g_zfs, zhp, nv, name_flags | VDEV_NAME_TYPE_ID);
if (strlen(name) + depth > max)
max = strlen(name) + depth;
free(name);
if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_SPARES,
&child, &children) == 0) {
for (c = 0; c < children; c++)
if ((ret = max_width(zhp, child[c], depth + 2,
max, name_flags)) > max)
max = ret;
}
if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_L2CACHE,
&child, &children) == 0) {
for (c = 0; c < children; c++)
if ((ret = max_width(zhp, child[c], depth + 2,
max, name_flags)) > max)
max = ret;
}
if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
&child, &children) == 0) {
for (c = 0; c < children; c++)
if ((ret = max_width(zhp, child[c], depth + 2,
max, name_flags)) > max)
max = ret;
}
return (max);
}
typedef struct spare_cbdata {
uint64_t cb_guid;
zpool_handle_t *cb_zhp;
} spare_cbdata_t;
static boolean_t
find_vdev(nvlist_t *nv, uint64_t search)
{
uint64_t guid;
nvlist_t **child;
uint_t c, children;
if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_GUID, &guid) == 0 &&
search == guid)
return (B_TRUE);
if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
&child, &children) == 0) {
for (c = 0; c < children; c++)
if (find_vdev(child[c], search))
return (B_TRUE);
}
return (B_FALSE);
}
static int
find_spare(zpool_handle_t *zhp, void *data)
{
spare_cbdata_t *cbp = data;
nvlist_t *config, *nvroot;
config = zpool_get_config(zhp, NULL);
verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
&nvroot) == 0);
if (find_vdev(nvroot, cbp->cb_guid)) {
cbp->cb_zhp = zhp;
return (1);
}
zpool_close(zhp);
return (0);
}
/*
* Print out configuration state as requested by status_callback.
*/
static void
print_status_config(zpool_handle_t *zhp, const char *name, nvlist_t *nv,
int namewidth, int depth, boolean_t isspare, int name_flags)
{
nvlist_t **child;
uint_t c, children;
pool_scan_stat_t *ps = NULL;
vdev_stat_t *vs;
char rbuf[6], wbuf[6], cbuf[6];
char *vname;
uint64_t notpresent;
spare_cbdata_t cb;
char *state;
if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
&child, &children) != 0)
children = 0;
verify(nvlist_lookup_uint64_array(nv, ZPOOL_CONFIG_VDEV_STATS,
(uint64_t **)&vs, &c) == 0);
state = zpool_state_to_name(vs->vs_state, vs->vs_aux);
if (isspare) {
/*
* For hot spares, we use the terms 'INUSE' and 'AVAILABLE' for
* online drives.
*/
if (vs->vs_aux == VDEV_AUX_SPARED)
state = "INUSE";
else if (vs->vs_state == VDEV_STATE_HEALTHY)
state = "AVAIL";
}
(void) printf("\t%*s%-*s %-8s", depth, "", namewidth - depth,
name, state);
if (!isspare) {
zfs_nicenum(vs->vs_read_errors, rbuf, sizeof (rbuf));
zfs_nicenum(vs->vs_write_errors, wbuf, sizeof (wbuf));
zfs_nicenum(vs->vs_checksum_errors, cbuf, sizeof (cbuf));
(void) printf(" %5s %5s %5s", rbuf, wbuf, cbuf);
}
if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_NOT_PRESENT,
&notpresent) == 0) {
char *path;
verify(nvlist_lookup_string(nv, ZPOOL_CONFIG_PATH, &path) == 0);
(void) printf(" was %s", path);
} else if (vs->vs_aux != 0) {
(void) printf(" ");
switch (vs->vs_aux) {
case VDEV_AUX_OPEN_FAILED:
(void) printf(gettext("cannot open"));
break;
case VDEV_AUX_BAD_GUID_SUM:
(void) printf(gettext("missing device"));
break;
case VDEV_AUX_NO_REPLICAS:
(void) printf(gettext("insufficient replicas"));
break;
case VDEV_AUX_VERSION_NEWER:
(void) printf(gettext("newer version"));
break;
case VDEV_AUX_UNSUP_FEAT:
(void) printf(gettext("unsupported feature(s)"));
break;
case VDEV_AUX_SPARED:
verify(nvlist_lookup_uint64(nv, ZPOOL_CONFIG_GUID,
&cb.cb_guid) == 0);
if (zpool_iter(g_zfs, find_spare, &cb) == 1) {
if (strcmp(zpool_get_name(cb.cb_zhp),
zpool_get_name(zhp)) == 0)
(void) printf(gettext("currently in "
"use"));
else
(void) printf(gettext("in use by "
"pool '%s'"),
zpool_get_name(cb.cb_zhp));
zpool_close(cb.cb_zhp);
} else {
(void) printf(gettext("currently in use"));
}
break;
case VDEV_AUX_ERR_EXCEEDED:
(void) printf(gettext("too many errors"));
break;
case VDEV_AUX_IO_FAILURE:
(void) printf(gettext("experienced I/O failures"));
break;
case VDEV_AUX_BAD_LOG:
(void) printf(gettext("bad intent log"));
break;
case VDEV_AUX_EXTERNAL:
(void) printf(gettext("external device fault"));
break;
case VDEV_AUX_SPLIT_POOL:
(void) printf(gettext("split into new pool"));
break;
default:
(void) printf(gettext("corrupted data"));
break;
}
}
(void) nvlist_lookup_uint64_array(nv, ZPOOL_CONFIG_SCAN_STATS,
(uint64_t **)&ps, &c);
if (ps && ps->pss_state == DSS_SCANNING &&
vs->vs_scan_processed != 0 && children == 0) {
(void) printf(gettext(" (%s)"),
(ps->pss_func == POOL_SCAN_RESILVER) ?
"resilvering" : "repairing");
}
(void) printf("\n");
for (c = 0; c < children; c++) {
uint64_t islog = B_FALSE, ishole = B_FALSE;
/* Don't print logs or holes here */
(void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_LOG,
&islog);
(void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_HOLE,
&ishole);
if (islog || ishole)
continue;
vname = zpool_vdev_name(g_zfs, zhp, child[c],
name_flags | VDEV_NAME_TYPE_ID);
print_status_config(zhp, vname, child[c],
namewidth, depth + 2, isspare, name_flags);
free(vname);
}
}
/*
* Print the configuration of an exported pool. Iterate over all vdevs in the
* pool, printing out the name and status for each one.
*/
static void
print_import_config(const char *name, nvlist_t *nv, int namewidth, int depth,
int name_flags)
{
nvlist_t **child;
uint_t c, children;
vdev_stat_t *vs;
char *type, *vname;
verify(nvlist_lookup_string(nv, ZPOOL_CONFIG_TYPE, &type) == 0);
if (strcmp(type, VDEV_TYPE_MISSING) == 0 ||
strcmp(type, VDEV_TYPE_HOLE) == 0)
return;
verify(nvlist_lookup_uint64_array(nv, ZPOOL_CONFIG_VDEV_STATS,
(uint64_t **)&vs, &c) == 0);
(void) printf("\t%*s%-*s", depth, "", namewidth - depth, name);
(void) printf(" %s", zpool_state_to_name(vs->vs_state, vs->vs_aux));
if (vs->vs_aux != 0) {
(void) printf(" ");
switch (vs->vs_aux) {
case VDEV_AUX_OPEN_FAILED:
(void) printf(gettext("cannot open"));
break;
case VDEV_AUX_BAD_GUID_SUM:
(void) printf(gettext("missing device"));
break;
case VDEV_AUX_NO_REPLICAS:
(void) printf(gettext("insufficient replicas"));
break;
case VDEV_AUX_VERSION_NEWER:
(void) printf(gettext("newer version"));
break;
case VDEV_AUX_UNSUP_FEAT:
(void) printf(gettext("unsupported feature(s)"));
break;
case VDEV_AUX_ERR_EXCEEDED:
(void) printf(gettext("too many errors"));
break;
default:
(void) printf(gettext("corrupted data"));
break;
}
}
(void) printf("\n");
if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
&child, &children) != 0)
return;
for (c = 0; c < children; c++) {
uint64_t is_log = B_FALSE;
(void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_LOG,
&is_log);
if (is_log)
continue;
vname = zpool_vdev_name(g_zfs, NULL, child[c],
name_flags | VDEV_NAME_TYPE_ID);
print_import_config(vname, child[c], namewidth, depth + 2,
name_flags);
free(vname);
}
if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_L2CACHE,
&child, &children) == 0) {
(void) printf(gettext("\tcache\n"));
for (c = 0; c < children; c++) {
vname = zpool_vdev_name(g_zfs, NULL, child[c],
name_flags);
(void) printf("\t %s\n", vname);
free(vname);
}
}
if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_SPARES,
&child, &children) == 0) {
(void) printf(gettext("\tspares\n"));
for (c = 0; c < children; c++) {
vname = zpool_vdev_name(g_zfs, NULL, child[c],
name_flags);
(void) printf("\t %s\n", vname);
free(vname);
}
}
}
/*
* Print log vdevs.
* Logs are recorded as top level vdevs in the main pool child array
* but with "is_log" set to 1. We use either print_status_config() or
* print_import_config() to print the top level logs then any log
* children (eg mirrored slogs) are printed recursively - which
* works because only the top level vdev is marked "is_log"
*/
static void
print_logs(zpool_handle_t *zhp, nvlist_t *nv, int namewidth, boolean_t verbose,
int name_flags)
{
uint_t c, children;
nvlist_t **child;
if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN, &child,
&children) != 0)
return;
(void) printf(gettext("\tlogs\n"));
for (c = 0; c < children; c++) {
uint64_t is_log = B_FALSE;
char *name;
(void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_LOG,
&is_log);
if (!is_log)
continue;
name = zpool_vdev_name(g_zfs, zhp, child[c],
name_flags | VDEV_NAME_TYPE_ID);
if (verbose)
print_status_config(zhp, name, child[c], namewidth,
2, B_FALSE, name_flags);
else
print_import_config(name, child[c], namewidth, 2,
name_flags);
free(name);
}
}
/*
* Display the status for the given pool.
*/
static void
show_import(nvlist_t *config)
{
uint64_t pool_state;
vdev_stat_t *vs;
char *name;
uint64_t guid;
char *msgid;
nvlist_t *nvroot;
zpool_status_t reason;
zpool_errata_t errata;
const char *health;
uint_t vsc;
int namewidth;
char *comment;
verify(nvlist_lookup_string(config, ZPOOL_CONFIG_POOL_NAME,
&name) == 0);
verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID,
&guid) == 0);
verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_STATE,
&pool_state) == 0);
verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
&nvroot) == 0);
verify(nvlist_lookup_uint64_array(nvroot, ZPOOL_CONFIG_VDEV_STATS,
(uint64_t **)&vs, &vsc) == 0);
health = zpool_state_to_name(vs->vs_state, vs->vs_aux);
reason = zpool_import_status(config, &msgid, &errata);
(void) printf(gettext(" pool: %s\n"), name);
(void) printf(gettext(" id: %llu\n"), (u_longlong_t)guid);
(void) printf(gettext(" state: %s"), health);
if (pool_state == POOL_STATE_DESTROYED)
(void) printf(gettext(" (DESTROYED)"));
(void) printf("\n");
switch (reason) {
case ZPOOL_STATUS_MISSING_DEV_R:
case ZPOOL_STATUS_MISSING_DEV_NR:
case ZPOOL_STATUS_BAD_GUID_SUM:
(void) printf(gettext(" status: One or more devices are "
"missing from the system.\n"));
break;
case ZPOOL_STATUS_CORRUPT_LABEL_R:
case ZPOOL_STATUS_CORRUPT_LABEL_NR:
(void) printf(gettext(" status: One or more devices contains "
"corrupted data.\n"));
break;
case ZPOOL_STATUS_CORRUPT_DATA:
(void) printf(
gettext(" status: The pool data is corrupted.\n"));
break;
case ZPOOL_STATUS_OFFLINE_DEV:
(void) printf(gettext(" status: One or more devices "
"are offlined.\n"));
break;
case ZPOOL_STATUS_CORRUPT_POOL:
(void) printf(gettext(" status: The pool metadata is "
"corrupted.\n"));
break;
case ZPOOL_STATUS_VERSION_OLDER:
(void) printf(gettext(" status: The pool is formatted using a "
"legacy on-disk version.\n"));
break;
case ZPOOL_STATUS_VERSION_NEWER:
(void) printf(gettext(" status: The pool is formatted using an "
"incompatible version.\n"));
break;
case ZPOOL_STATUS_FEAT_DISABLED:
(void) printf(gettext(" status: Some supported features are "
"not enabled on the pool.\n"));
break;
case ZPOOL_STATUS_UNSUP_FEAT_READ:
(void) printf(gettext("status: The pool uses the following "
"feature(s) not supported on this sytem:\n"));
zpool_print_unsup_feat(config);
break;
case ZPOOL_STATUS_UNSUP_FEAT_WRITE:
(void) printf(gettext("status: The pool can only be accessed "
"in read-only mode on this system. It\n\tcannot be "
"accessed in read-write mode because it uses the "
"following\n\tfeature(s) not supported on this system:\n"));
zpool_print_unsup_feat(config);
break;
case ZPOOL_STATUS_HOSTID_MISMATCH:
(void) printf(gettext(" status: The pool was last accessed by "
"another system.\n"));
break;
case ZPOOL_STATUS_FAULTED_DEV_R:
case ZPOOL_STATUS_FAULTED_DEV_NR:
(void) printf(gettext(" status: One or more devices are "
"faulted.\n"));
break;
case ZPOOL_STATUS_BAD_LOG:
(void) printf(gettext(" status: An intent log record cannot be "
"read.\n"));
break;
case ZPOOL_STATUS_RESILVERING:
(void) printf(gettext(" status: One or more devices were being "
"resilvered.\n"));
break;
case ZPOOL_STATUS_ERRATA:
(void) printf(gettext(" status: Errata #%d detected.\n"),
errata);
break;
default:
/*
* No other status can be seen when importing pools.
*/
assert(reason == ZPOOL_STATUS_OK);
}
/*
* Print out an action according to the overall state of the pool.
*/
if (vs->vs_state == VDEV_STATE_HEALTHY) {
if (reason == ZPOOL_STATUS_VERSION_OLDER ||
reason == ZPOOL_STATUS_FEAT_DISABLED) {
(void) printf(gettext(" action: The pool can be "
"imported using its name or numeric identifier, "
"though\n\tsome features will not be available "
"without an explicit 'zpool upgrade'.\n"));
} else if (reason == ZPOOL_STATUS_HOSTID_MISMATCH) {
(void) printf(gettext(" action: The pool can be "
"imported using its name or numeric "
"identifier and\n\tthe '-f' flag.\n"));
} else if (reason == ZPOOL_STATUS_ERRATA) {
switch (errata) {
case ZPOOL_ERRATA_NONE:
break;
case ZPOOL_ERRATA_ZOL_2094_SCRUB:
(void) printf(gettext(" action: The pool can "
"be imported using its name or numeric "
"identifier,\n\thowever there is a compat"
"ibility issue which should be corrected"
"\n\tby running 'zpool scrub'\n"));
break;
case ZPOOL_ERRATA_ZOL_2094_ASYNC_DESTROY:
(void) printf(gettext(" action: The pool can"
"not be imported with this version of ZFS "
"due to\n\tan active asynchronous destroy. "
"Revert to an earlier version\n\tand "
"allow the destroy to complete before "
"updating.\n"));
break;
default:
/*
* All errata must contain an action message.
*/
assert(0);
}
} else {
(void) printf(gettext(" action: The pool can be "
"imported using its name or numeric "
"identifier.\n"));
}
} else if (vs->vs_state == VDEV_STATE_DEGRADED) {
(void) printf(gettext(" action: The pool can be imported "
"despite missing or damaged devices. The\n\tfault "
"tolerance of the pool may be compromised if imported.\n"));
} else {
switch (reason) {
case ZPOOL_STATUS_VERSION_NEWER:
(void) printf(gettext(" action: The pool cannot be "
"imported. Access the pool on a system running "
"newer\n\tsoftware, or recreate the pool from "
"backup.\n"));
break;
case ZPOOL_STATUS_UNSUP_FEAT_READ:
(void) printf(gettext("action: The pool cannot be "
"imported. Access the pool on a system that "
"supports\n\tthe required feature(s), or recreate "
"the pool from backup.\n"));
break;
case ZPOOL_STATUS_UNSUP_FEAT_WRITE:
(void) printf(gettext("action: The pool cannot be "
"imported in read-write mode. Import the pool "
"with\n"
"\t\"-o readonly=on\", access the pool on a system "
"that supports the\n\trequired feature(s), or "
"recreate the pool from backup.\n"));
break;
case ZPOOL_STATUS_MISSING_DEV_R:
case ZPOOL_STATUS_MISSING_DEV_NR:
case ZPOOL_STATUS_BAD_GUID_SUM:
(void) printf(gettext(" action: The pool cannot be "
"imported. Attach the missing\n\tdevices and try "
"again.\n"));
break;
default:
(void) printf(gettext(" action: The pool cannot be "
"imported due to damaged devices or data.\n"));
}
}
/* Print the comment attached to the pool. */
if (nvlist_lookup_string(config, ZPOOL_CONFIG_COMMENT, &comment) == 0)
(void) printf(gettext("comment: %s\n"), comment);
/*
* If the state is "closed" or "can't open", and the aux state
* is "corrupt data":
*/
if (((vs->vs_state == VDEV_STATE_CLOSED) ||
(vs->vs_state == VDEV_STATE_CANT_OPEN)) &&
(vs->vs_aux == VDEV_AUX_CORRUPT_DATA)) {
if (pool_state == POOL_STATE_DESTROYED)
(void) printf(gettext("\tThe pool was destroyed, "
"but can be imported using the '-Df' flags.\n"));
else if (pool_state != POOL_STATE_EXPORTED)
(void) printf(gettext("\tThe pool may be active on "
"another system, but can be imported using\n\t"
"the '-f' flag.\n"));
}
if (msgid != NULL)
(void) printf(gettext(" see: http://zfsonlinux.org/msg/%s\n"),
msgid);
(void) printf(gettext(" config:\n\n"));
namewidth = max_width(NULL, nvroot, 0, 0, 0);
if (namewidth < 10)
namewidth = 10;
print_import_config(name, nvroot, namewidth, 0, 0);
if (num_logs(nvroot) > 0)
print_logs(NULL, nvroot, namewidth, B_FALSE, 0);
if (reason == ZPOOL_STATUS_BAD_GUID_SUM) {
(void) printf(gettext("\n\tAdditional devices are known to "
"be part of this pool, though their\n\texact "
"configuration cannot be determined.\n"));
}
}
/*
* Perform the import for the given configuration. This passes the heavy
* lifting off to zpool_import_props(), and then mounts the datasets contained
* within the pool.
*/
static int
do_import(nvlist_t *config, const char *newname, const char *mntopts,
nvlist_t *props, int flags)
{
zpool_handle_t *zhp;
char *name;
uint64_t state;
uint64_t version;
verify(nvlist_lookup_string(config, ZPOOL_CONFIG_POOL_NAME,
&name) == 0);
verify(nvlist_lookup_uint64(config,
ZPOOL_CONFIG_POOL_STATE, &state) == 0);
verify(nvlist_lookup_uint64(config,
ZPOOL_CONFIG_VERSION, &version) == 0);
if (!SPA_VERSION_IS_SUPPORTED(version)) {
(void) fprintf(stderr, gettext("cannot import '%s': pool "
"is formatted using an unsupported ZFS version\n"), name);
return (1);
} else if (state != POOL_STATE_EXPORTED &&
!(flags & ZFS_IMPORT_ANY_HOST)) {
uint64_t hostid = 0;
unsigned long system_hostid = get_system_hostid();
(void) nvlist_lookup_uint64(config, ZPOOL_CONFIG_HOSTID,
&hostid);
if (hostid != 0 && (unsigned long)hostid != system_hostid) {
char *hostname;
uint64_t timestamp;
time_t t;
verify(nvlist_lookup_string(config,
ZPOOL_CONFIG_HOSTNAME, &hostname) == 0);
verify(nvlist_lookup_uint64(config,
ZPOOL_CONFIG_TIMESTAMP, &timestamp) == 0);
t = timestamp;
(void) fprintf(stderr, gettext("cannot import "
"'%s': pool may be in use from other "
"system, it was last accessed by %s "
"(hostid: 0x%lx) on %s"), name, hostname,
(unsigned long)hostid,
asctime(localtime(&t)));
(void) fprintf(stderr, gettext("use '-f' to "
"import anyway\n"));
return (1);
}
}
if (zpool_import_props(g_zfs, config, newname, props, flags) != 0)
return (1);
if (newname != NULL)
name = (char *)newname;
if ((zhp = zpool_open_canfail(g_zfs, name)) == NULL)
return (1);
if (zpool_get_state(zhp) != POOL_STATE_UNAVAIL &&
!(flags & ZFS_IMPORT_ONLY) &&
zpool_enable_datasets(zhp, mntopts, 0) != 0) {
zpool_close(zhp);
return (1);
}
zpool_close(zhp);
return (0);
}
/*
* zpool import [-d dir] [-D]
* import [-o mntopts] [-o prop=value] ... [-R root] [-D]
* [-d dir | -c cachefile] [-f] -a
* import [-o mntopts] [-o prop=value] ... [-R root] [-D]
* [-d dir | -c cachefile] [-f] [-n] [-F] <pool | id> [newpool]
*
* -c Read pool information from a cachefile instead of searching
* devices.
*
* -d Scan in a specific directory, other than /dev/. More than
* one directory can be specified using multiple '-d' options.
*
* -D Scan for previously destroyed pools or import all or only
* specified destroyed pools.
*
* -R Temporarily import the pool, with all mountpoints relative to
* the given root. The pool will remain exported when the machine
* is rebooted.
*
* -V Import even in the presence of faulted vdevs. This is an
* intentionally undocumented option for testing purposes, and
* treats the pool configuration as complete, leaving any bad
* vdevs in the FAULTED state. In other words, it does verbatim
* import.
*
* -f Force import, even if it appears that the pool is active.
*
* -F Attempt rewind if necessary.
*
* -n See if rewind would work, but don't actually rewind.
*
* -N Import the pool but don't mount datasets.
*
* -T Specify a starting txg to use for import. This option is
* intentionally undocumented option for testing purposes.
*
* -a Import all pools found.
*
* -o Set property=value and/or temporary mount options (without '=').
*
* -s Scan using the default search path, the libblkid cache will
* not be consulted.
*
* The import command scans for pools to import, and import pools based on pool
* name and GUID. The pool can also be renamed as part of the import process.
*/
int
zpool_do_import(int argc, char **argv)
{
char **searchdirs = NULL;
char *env, *envdup = NULL;
int nsearch = 0;
int c;
int err = 0;
nvlist_t *pools = NULL;
boolean_t do_all = B_FALSE;
boolean_t do_destroyed = B_FALSE;
char *mntopts = NULL;
nvpair_t *elem;
nvlist_t *config;
uint64_t searchguid = 0;
char *searchname = NULL;
char *propval;
nvlist_t *found_config;
nvlist_t *policy = NULL;
nvlist_t *props = NULL;
boolean_t first;
int flags = ZFS_IMPORT_NORMAL;
uint32_t rewind_policy = ZPOOL_NO_REWIND;
boolean_t dryrun = B_FALSE;
boolean_t do_rewind = B_FALSE;
boolean_t xtreme_rewind = B_FALSE;
boolean_t do_scan = B_FALSE;
uint64_t pool_state, txg = -1ULL;
char *cachefile = NULL;
importargs_t idata = { 0 };
char *endptr;
/* check options */
while ((c = getopt(argc, argv, ":aCc:d:DEfFmnNo:R:stT:VX")) != -1) {
switch (c) {
case 'a':
do_all = B_TRUE;
break;
case 'c':
cachefile = optarg;
break;
case 'd':
if (searchdirs == NULL) {
searchdirs = safe_malloc(sizeof (char *));
} else {
char **tmp = safe_malloc((nsearch + 1) *
sizeof (char *));
bcopy(searchdirs, tmp, nsearch *
sizeof (char *));
free(searchdirs);
searchdirs = tmp;
}
searchdirs[nsearch++] = optarg;
break;
case 'D':
do_destroyed = B_TRUE;
break;
case 'f':
flags |= ZFS_IMPORT_ANY_HOST;
break;
case 'F':
do_rewind = B_TRUE;
break;
case 'm':
flags |= ZFS_IMPORT_MISSING_LOG;
break;
case 'n':
dryrun = B_TRUE;
break;
case 'N':
flags |= ZFS_IMPORT_ONLY;
break;
case 'o':
if ((propval = strchr(optarg, '=')) != NULL) {
*propval = '\0';
propval++;
if (add_prop_list(optarg, propval,
&props, B_TRUE))
goto error;
} else {
mntopts = optarg;
}
break;
case 'R':
if (add_prop_list(zpool_prop_to_name(
ZPOOL_PROP_ALTROOT), optarg, &props, B_TRUE))
goto error;
if (add_prop_list_default(zpool_prop_to_name(
ZPOOL_PROP_CACHEFILE), "none", &props, B_TRUE))
goto error;
break;
case 's':
do_scan = B_TRUE;
break;
case 't':
flags |= ZFS_IMPORT_TEMP_NAME;
if (add_prop_list_default(zpool_prop_to_name(
ZPOOL_PROP_CACHEFILE), "none", &props, B_TRUE))
goto error;
break;
case 'T':
errno = 0;
txg = strtoull(optarg, &endptr, 0);
if (errno != 0 || *endptr != '\0') {
(void) fprintf(stderr,
gettext("invalid txg value\n"));
usage(B_FALSE);
}
rewind_policy = ZPOOL_DO_REWIND | ZPOOL_EXTREME_REWIND;
break;
case 'V':
flags |= ZFS_IMPORT_VERBATIM;
break;
case 'X':
xtreme_rewind = B_TRUE;
break;
case ':':
(void) fprintf(stderr, gettext("missing argument for "
"'%c' option\n"), optopt);
usage(B_FALSE);
break;
case '?':
(void) fprintf(stderr, gettext("invalid option '%c'\n"),
optopt);
usage(B_FALSE);
}
}
argc -= optind;
argv += optind;
if (cachefile && nsearch != 0) {
(void) fprintf(stderr, gettext("-c is incompatible with -d\n"));
usage(B_FALSE);
}
if ((dryrun || xtreme_rewind) && !do_rewind) {
(void) fprintf(stderr,
gettext("-n or -X only meaningful with -F\n"));
usage(B_FALSE);
}
if (dryrun)
rewind_policy = ZPOOL_TRY_REWIND;
else if (do_rewind)
rewind_policy = ZPOOL_DO_REWIND;
if (xtreme_rewind)
rewind_policy |= ZPOOL_EXTREME_REWIND;
/* In the future, we can capture further policy and include it here */
if (nvlist_alloc(&policy, NV_UNIQUE_NAME, 0) != 0 ||
nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, txg) != 0 ||
nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind_policy) != 0)
goto error;
/* check argument count */
if (do_all) {
if (argc != 0) {
(void) fprintf(stderr, gettext("too many arguments\n"));
usage(B_FALSE);
}
} else {
if (argc > 2) {
(void) fprintf(stderr, gettext("too many arguments\n"));
usage(B_FALSE);
}
/*
* Check for the SYS_CONFIG privilege. We do this explicitly
* here because otherwise any attempt to discover pools will
* silently fail.
*/
if (argc == 0 && !priv_ineffect(PRIV_SYS_CONFIG)) {
(void) fprintf(stderr, gettext("cannot "
"discover pools: permission denied\n"));
if (searchdirs != NULL)
free(searchdirs);
nvlist_free(policy);
return (1);
}
}
/*
* Depending on the arguments given, we do one of the following:
*
* <none> Iterate through all pools and display information about
* each one.
*
* -a Iterate through all pools and try to import each one.
*
* <id> Find the pool that corresponds to the given GUID/pool
* name and import that one.
*
* -D Above options applies only to destroyed pools.
*/
if (argc != 0) {
char *endptr;
errno = 0;
searchguid = strtoull(argv[0], &endptr, 10);
if (errno != 0 || *endptr != '\0') {
searchname = argv[0];
searchguid = 0;
}
found_config = NULL;
/*
* User specified a name or guid. Ensure it's unique.
*/
idata.unique = B_TRUE;
}
/*
* Check the environment for the preferred search path.
*/
if ((searchdirs == NULL) && (env = getenv("ZPOOL_IMPORT_PATH"))) {
char *dir;
envdup = strdup(env);
dir = strtok(envdup, ":");
while (dir != NULL) {
if (searchdirs == NULL) {
searchdirs = safe_malloc(sizeof (char *));
} else {
char **tmp = safe_malloc((nsearch + 1) *
sizeof (char *));
bcopy(searchdirs, tmp, nsearch *
sizeof (char *));
free(searchdirs);
searchdirs = tmp;
}
searchdirs[nsearch++] = dir;
dir = strtok(NULL, ":");
}
}
idata.path = searchdirs;
idata.paths = nsearch;
idata.poolname = searchname;
idata.guid = searchguid;
idata.cachefile = cachefile;
idata.scan = do_scan;
/*
* Under Linux the zpool_find_import_impl() function leverages the
* taskq implementation to parallelize device scanning. It is
* therefore necessary to initialize this functionality for the
* duration of the zpool_search_import() function.
*/
thread_init();
pools = zpool_search_import(g_zfs, &idata);
thread_fini();
if (pools != NULL && idata.exists &&
(argc == 1 || strcmp(argv[0], argv[1]) == 0)) {
(void) fprintf(stderr, gettext("cannot import '%s': "
"a pool with that name already exists\n"),
argv[0]);
(void) fprintf(stderr, gettext("use the form '%s "
"<pool | id> <newpool>' to give it a new name\n"),
"zpool import");
err = 1;
} else if (pools == NULL && idata.exists) {
(void) fprintf(stderr, gettext("cannot import '%s': "
"a pool with that name is already created/imported,\n"),
argv[0]);
(void) fprintf(stderr, gettext("and no additional pools "
"with that name were found\n"));
err = 1;
} else if (pools == NULL) {
if (argc != 0) {
(void) fprintf(stderr, gettext("cannot import '%s': "
"no such pool available\n"), argv[0]);
}
err = 1;
}
if (err == 1) {
if (searchdirs != NULL)
free(searchdirs);
if (envdup != NULL)
free(envdup);
nvlist_free(policy);
return (1);
}
/*
* At this point we have a list of import candidate configs. Even if
* we were searching by pool name or guid, we still need to
* post-process the list to deal with pool state and possible
* duplicate names.
*/
err = 0;
elem = NULL;
first = B_TRUE;
while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) {
verify(nvpair_value_nvlist(elem, &config) == 0);
verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_STATE,
&pool_state) == 0);
if (!do_destroyed && pool_state == POOL_STATE_DESTROYED)
continue;
if (do_destroyed && pool_state != POOL_STATE_DESTROYED)
continue;
verify(nvlist_add_nvlist(config, ZPOOL_REWIND_POLICY,
policy) == 0);
if (argc == 0) {
if (first)
first = B_FALSE;
else if (!do_all)
(void) printf("\n");
if (do_all) {
err |= do_import(config, NULL, mntopts,
props, flags);
} else {
show_import(config);
}
} else if (searchname != NULL) {
char *name;
/*
* We are searching for a pool based on name.
*/
verify(nvlist_lookup_string(config,
ZPOOL_CONFIG_POOL_NAME, &name) == 0);
if (strcmp(name, searchname) == 0) {
if (found_config != NULL) {
(void) fprintf(stderr, gettext(
"cannot import '%s': more than "
"one matching pool\n"), searchname);
(void) fprintf(stderr, gettext(
"import by numeric ID instead\n"));
err = B_TRUE;
}
found_config = config;
}
} else {
uint64_t guid;
/*
* Search for a pool by guid.
*/
verify(nvlist_lookup_uint64(config,
ZPOOL_CONFIG_POOL_GUID, &guid) == 0);
if (guid == searchguid)
found_config = config;
}
}
/*
* If we were searching for a specific pool, verify that we found a
* pool, and then do the import.
*/
if (argc != 0 && err == 0) {
if (found_config == NULL) {
(void) fprintf(stderr, gettext("cannot import '%s': "
"no such pool available\n"), argv[0]);
err = B_TRUE;
} else {
err |= do_import(found_config, argc == 1 ? NULL :
argv[1], mntopts, props, flags);
}
}
/*
* If we were just looking for pools, report an error if none were
* found.
*/
if (argc == 0 && first)
(void) fprintf(stderr,
gettext("no pools available to import\n"));
error:
nvlist_free(props);
nvlist_free(pools);
nvlist_free(policy);
if (searchdirs != NULL)
free(searchdirs);
if (envdup != NULL)
free(envdup);
return (err ? 1 : 0);
}
typedef struct iostat_cbdata {
boolean_t cb_verbose;
int cb_name_flags;
int cb_namewidth;
int cb_iteration;
zpool_list_t *cb_list;
} iostat_cbdata_t;
static void
print_iostat_separator(iostat_cbdata_t *cb)
{
int i = 0;
for (i = 0; i < cb->cb_namewidth; i++)
(void) printf("-");
(void) printf(" ----- ----- ----- ----- ----- -----\n");
}
static void
print_iostat_header(iostat_cbdata_t *cb)
{
(void) printf("%*s capacity operations bandwidth\n",
cb->cb_namewidth, "");
(void) printf("%-*s alloc free read write read write\n",
cb->cb_namewidth, "pool");
print_iostat_separator(cb);
}
/*
* Display a single statistic.
*/
static void
print_one_stat(uint64_t value)
{
char buf[64];
zfs_nicenum(value, buf, sizeof (buf));
(void) printf(" %5s", buf);
}
/*
* Print out all the statistics for the given vdev. This can either be the
* toplevel configuration, or called recursively. If 'name' is NULL, then this
* is a verbose output, and we don't want to display the toplevel pool stats.
*/
void
print_vdev_stats(zpool_handle_t *zhp, const char *name, nvlist_t *oldnv,
nvlist_t *newnv, iostat_cbdata_t *cb, int depth)
{
nvlist_t **oldchild, **newchild;
uint_t c, children;
vdev_stat_t *oldvs, *newvs;
vdev_stat_t zerovs = { 0 };
uint64_t tdelta;
double scale;
char *vname;
if (oldnv != NULL) {
verify(nvlist_lookup_uint64_array(oldnv,
ZPOOL_CONFIG_VDEV_STATS, (uint64_t **)&oldvs, &c) == 0);
} else {
oldvs = &zerovs;
}
verify(nvlist_lookup_uint64_array(newnv, ZPOOL_CONFIG_VDEV_STATS,
(uint64_t **)&newvs, &c) == 0);
if (strlen(name) + depth > cb->cb_namewidth)
(void) printf("%*s%s", depth, "", name);
else
(void) printf("%*s%s%*s", depth, "", name,
(int)(cb->cb_namewidth - strlen(name) - depth), "");
tdelta = newvs->vs_timestamp - oldvs->vs_timestamp;
if (tdelta == 0)
scale = 1.0;
else
scale = (double)NANOSEC / tdelta;
/* only toplevel vdevs have capacity stats */
if (newvs->vs_space == 0) {
(void) printf(" - -");
} else {
print_one_stat(newvs->vs_alloc);
print_one_stat(newvs->vs_space - newvs->vs_alloc);
}
print_one_stat((uint64_t)(scale * (newvs->vs_ops[ZIO_TYPE_READ] -
oldvs->vs_ops[ZIO_TYPE_READ])));
print_one_stat((uint64_t)(scale * (newvs->vs_ops[ZIO_TYPE_WRITE] -
oldvs->vs_ops[ZIO_TYPE_WRITE])));
print_one_stat((uint64_t)(scale * (newvs->vs_bytes[ZIO_TYPE_READ] -
oldvs->vs_bytes[ZIO_TYPE_READ])));
print_one_stat((uint64_t)(scale * (newvs->vs_bytes[ZIO_TYPE_WRITE] -
oldvs->vs_bytes[ZIO_TYPE_WRITE])));
(void) printf("\n");
if (!cb->cb_verbose)
return;
if (nvlist_lookup_nvlist_array(newnv, ZPOOL_CONFIG_CHILDREN,
&newchild, &children) != 0)
return;
if (oldnv && nvlist_lookup_nvlist_array(oldnv, ZPOOL_CONFIG_CHILDREN,
&oldchild, &c) != 0)
return;
for (c = 0; c < children; c++) {
uint64_t ishole = B_FALSE, islog = B_FALSE;
(void) nvlist_lookup_uint64(newchild[c], ZPOOL_CONFIG_IS_HOLE,
&ishole);
(void) nvlist_lookup_uint64(newchild[c], ZPOOL_CONFIG_IS_LOG,
&islog);
if (ishole || islog)
continue;
vname = zpool_vdev_name(g_zfs, zhp, newchild[c],
cb->cb_name_flags);
print_vdev_stats(zhp, vname, oldnv ? oldchild[c] : NULL,
newchild[c], cb, depth + 2);
free(vname);
}
/*
* Log device section
*/
if (num_logs(newnv) > 0) {
(void) printf("%-*s - - - - - "
"-\n", cb->cb_namewidth, "logs");
for (c = 0; c < children; c++) {
uint64_t islog = B_FALSE;
(void) nvlist_lookup_uint64(newchild[c],
ZPOOL_CONFIG_IS_LOG, &islog);
if (islog) {
vname = zpool_vdev_name(g_zfs, zhp, newchild[c],
cb->cb_name_flags);
print_vdev_stats(zhp, vname, oldnv ?
oldchild[c] : NULL, newchild[c],
cb, depth + 2);
free(vname);
}
}
}
/*
* Include level 2 ARC devices in iostat output
*/
if (nvlist_lookup_nvlist_array(newnv, ZPOOL_CONFIG_L2CACHE,
&newchild, &children) != 0)
return;
if (oldnv && nvlist_lookup_nvlist_array(oldnv, ZPOOL_CONFIG_L2CACHE,
&oldchild, &c) != 0)
return;
if (children > 0) {
(void) printf("%-*s - - - - - "
"-\n", cb->cb_namewidth, "cache");
for (c = 0; c < children; c++) {
vname = zpool_vdev_name(g_zfs, zhp, newchild[c],
cb->cb_name_flags);
print_vdev_stats(zhp, vname, oldnv ? oldchild[c] : NULL,
newchild[c], cb, depth + 2);
free(vname);
}
}
}
static int
refresh_iostat(zpool_handle_t *zhp, void *data)
{
iostat_cbdata_t *cb = data;
boolean_t missing;
/*
* If the pool has disappeared, remove it from the list and continue.
*/
if (zpool_refresh_stats(zhp, &missing) != 0)
return (-1);
if (missing)
pool_list_remove(cb->cb_list, zhp);
return (0);
}
/*
* Callback to print out the iostats for the given pool.
*/
int
print_iostat(zpool_handle_t *zhp, void *data)
{
iostat_cbdata_t *cb = data;
nvlist_t *oldconfig, *newconfig;
nvlist_t *oldnvroot, *newnvroot;
newconfig = zpool_get_config(zhp, &oldconfig);
if (cb->cb_iteration == 1)
oldconfig = NULL;
verify(nvlist_lookup_nvlist(newconfig, ZPOOL_CONFIG_VDEV_TREE,
&newnvroot) == 0);
if (oldconfig == NULL)
oldnvroot = NULL;
else
verify(nvlist_lookup_nvlist(oldconfig, ZPOOL_CONFIG_VDEV_TREE,
&oldnvroot) == 0);
/*
* Print out the statistics for the pool.
*/
print_vdev_stats(zhp, zpool_get_name(zhp), oldnvroot, newnvroot, cb, 0);
if (cb->cb_verbose)
print_iostat_separator(cb);
return (0);
}
static int
get_columns(void)
{
struct winsize ws;
int columns = 80;
int error;
if (isatty(STDOUT_FILENO)) {
error = ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws);
if (error == 0)
columns = ws.ws_col;
} else {
columns = 999;
}
return (columns);
}
int
get_namewidth(zpool_handle_t *zhp, void *data)
{
iostat_cbdata_t *cb = data;
nvlist_t *config, *nvroot;
int columns;
if ((config = zpool_get_config(zhp, NULL)) != NULL) {
verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
&nvroot) == 0);
if (!cb->cb_verbose)
cb->cb_namewidth = strlen(zpool_get_name(zhp));
else
cb->cb_namewidth = max_width(zhp, nvroot, 0,
cb->cb_namewidth, cb->cb_name_flags);
}
/*
* The width must be at least 10, but may be as large as the
* column width - 42 so that we can still fit in one line.
*/
columns = get_columns();
if (cb->cb_namewidth < 10)
cb->cb_namewidth = 10;
if (cb->cb_namewidth > columns - 42)
cb->cb_namewidth = columns - 42;
return (0);
}
/*
* Parse the input string, get the 'interval' and 'count' value if there is one.
*/
static void
get_interval_count(int *argcp, char **argv, unsigned long *iv,
unsigned long *cnt)
{
unsigned long interval = 0, count = 0;
int argc = *argcp;
/*
* Determine if the last argument is an integer or a pool name
*/
if (argc > 0 && isdigit(argv[argc - 1][0])) {
char *end;
errno = 0;
interval = strtoul(argv[argc - 1], &end, 10);
if (*end == '\0' && errno == 0) {
if (interval == 0) {
(void) fprintf(stderr, gettext("interval "
"cannot be zero\n"));
usage(B_FALSE);
}
/*
* Ignore the last parameter
*/
argc--;
} else {
/*
* If this is not a valid number, just plow on. The
* user will get a more informative error message later
* on.
*/
interval = 0;
}
}
/*
* If the last argument is also an integer, then we have both a count
* and an interval.
*/
if (argc > 0 && isdigit(argv[argc - 1][0])) {
char *end;
errno = 0;
count = interval;
interval = strtoul(argv[argc - 1], &end, 10);
if (*end == '\0' && errno == 0) {
if (interval == 0) {
(void) fprintf(stderr, gettext("interval "
"cannot be zero\n"));
usage(B_FALSE);
}
/*
* Ignore the last parameter
*/
argc--;
} else {
interval = 0;
}
}
*iv = interval;
*cnt = count;
*argcp = argc;
}
static void
get_timestamp_arg(char c)
{
if (c == 'u')
timestamp_fmt = UDATE;
else if (c == 'd')
timestamp_fmt = DDATE;
else
usage(B_FALSE);
}
/*
* zpool iostat [-gLPv] [-T d|u] [pool] ... [interval [count]]
*
* -g Display guid for individual vdev name.
* -L Follow links when resolving vdev path name.
* -P Display full path for vdev name.
* -v Display statistics for individual vdevs
* -T Display a timestamp in date(1) or Unix format
*
* This command can be tricky because we want to be able to deal with pool
* creation/destruction as well as vdev configuration changes. The bulk of this
* processing is handled by the pool_list_* routines in zpool_iter.c. We rely
* on pool_list_update() to detect the addition of new pools. Configuration
* changes are all handled within libzfs.
*/
int
zpool_do_iostat(int argc, char **argv)
{
int c;
int ret;
int npools;
unsigned long interval = 0, count = 0;
zpool_list_t *list;
boolean_t verbose = B_FALSE;
boolean_t omit_since_boot = B_FALSE;
boolean_t guid = B_FALSE;
boolean_t follow_links = B_FALSE;
boolean_t full_name = B_FALSE;
iostat_cbdata_t cb = { 0 };
/* check options */
while ((c = getopt(argc, argv, "gLPT:vy")) != -1) {
switch (c) {
case 'g':
guid = B_TRUE;
break;
case 'L':
follow_links = B_TRUE;
break;
case 'P':
full_name = B_TRUE;
break;
case 'T':
get_timestamp_arg(*optarg);
break;
case 'v':
verbose = B_TRUE;
break;
case 'y':
omit_since_boot = B_TRUE;
break;
case '?':
(void) fprintf(stderr, gettext("invalid option '%c'\n"),
optopt);
usage(B_FALSE);
}
}
argc -= optind;
argv += optind;
get_interval_count(&argc, argv, &interval, &count);
/*
* Construct the list of all interesting pools.
*/
ret = 0;
if ((list = pool_list_get(argc, argv, NULL, &ret)) == NULL)
return (1);
if (pool_list_count(list) == 0 && argc != 0) {
pool_list_free(list);
return (1);
}
if (pool_list_count(list) == 0 && interval == 0) {
pool_list_free(list);
(void) fprintf(stderr, gettext("no pools available\n"));
return (1);
}
/*
* Enter the main iostat loop.
*/
cb.cb_list = list;
cb.cb_verbose = verbose;
if (guid)
cb.cb_name_flags |= VDEV_NAME_GUID;
if (follow_links)
cb.cb_name_flags |= VDEV_NAME_FOLLOW_LINKS;
if (full_name)
cb.cb_name_flags |= VDEV_NAME_PATH;
cb.cb_iteration = 0;
cb.cb_namewidth = 0;
for (;;) {
if ((npools = pool_list_count(list)) == 0)
(void) fprintf(stderr, gettext("no pools available\n"));
else {
/*
* If this is the first iteration and -y was supplied
* we skip any printing.
*/
boolean_t skip = (omit_since_boot &&
cb.cb_iteration == 0);
/*
* Refresh all statistics. This is done as an
* explicit step before calculating the maximum name
* width, so that any * configuration changes are
* properly accounted for.
*/
(void) pool_list_iter(list, B_FALSE, refresh_iostat,
&cb);
/*
* Iterate over all pools to determine the maximum width
* for the pool / device name column across all pools.
*/
cb.cb_namewidth = 0;
(void) pool_list_iter(list, B_FALSE, get_namewidth,
&cb);
if (timestamp_fmt != NODATE)
print_timestamp(timestamp_fmt);
/*
* If it's the first time and we're not skipping it,
* or either skip or verbose mode, print the header.
*/
if ((++cb.cb_iteration == 1 && !skip) ||
(skip != verbose))
print_iostat_header(&cb);
if (skip) {
(void) sleep(interval);
continue;
}
(void) pool_list_iter(list, B_FALSE, print_iostat, &cb);
/*
* If there's more than one pool, and we're not in
* verbose mode (which prints a separator for us),
* then print a separator.
*/
if (npools > 1 && !verbose)
print_iostat_separator(&cb);
if (verbose)
(void) printf("\n");
}
/*
* Flush the output so that redirection to a file isn't buffered
* indefinitely.
*/
(void) fflush(stdout);
if (interval == 0)
break;
if (count != 0 && --count == 0)
break;
(void) sleep(interval);
}
pool_list_free(list);
return (ret);
}
typedef struct list_cbdata {
boolean_t cb_verbose;
int cb_name_flags;
int cb_namewidth;
boolean_t cb_scripted;
zprop_list_t *cb_proplist;
} list_cbdata_t;
/*
* Given a list of columns to display, output appropriate headers for each one.
*/
static void
print_header(list_cbdata_t *cb)
{
zprop_list_t *pl = cb->cb_proplist;
char headerbuf[ZPOOL_MAXPROPLEN];
const char *header;
boolean_t first = B_TRUE;
boolean_t right_justify;
size_t width = 0;
for (; pl != NULL; pl = pl->pl_next) {
width = pl->pl_width;
if (first && cb->cb_verbose) {
/*
* Reset the width to accommodate the verbose listing
* of devices.
*/
width = cb->cb_namewidth;
}
if (!first)
(void) printf(" ");
else
first = B_FALSE;
right_justify = B_FALSE;
if (pl->pl_prop != ZPROP_INVAL) {
header = zpool_prop_column_name(pl->pl_prop);
right_justify = zpool_prop_align_right(pl->pl_prop);
} else {
int i;
for (i = 0; pl->pl_user_prop[i] != '\0'; i++)
headerbuf[i] = toupper(pl->pl_user_prop[i]);
headerbuf[i] = '\0';
header = headerbuf;
}
if (pl->pl_next == NULL && !right_justify)
(void) printf("%s", header);
else if (right_justify)
(void) printf("%*s", (int)width, header);
else
(void) printf("%-*s", (int)width, header);
}
(void) printf("\n");
}
/*
* Given a pool and a list of properties, print out all the properties according
* to the described layout.
*/
static void
print_pool(zpool_handle_t *zhp, list_cbdata_t *cb)
{
zprop_list_t *pl = cb->cb_proplist;
boolean_t first = B_TRUE;
char property[ZPOOL_MAXPROPLEN];
char *propstr;
boolean_t right_justify;
size_t width;
for (; pl != NULL; pl = pl->pl_next) {
width = pl->pl_width;
if (first && cb->cb_verbose) {
/*
* Reset the width to accommodate the verbose listing
* of devices.
*/
width = cb->cb_namewidth;
}
if (!first) {
if (cb->cb_scripted)
(void) printf("\t");
else
(void) printf(" ");
} else {
first = B_FALSE;
}
right_justify = B_FALSE;
if (pl->pl_prop != ZPROP_INVAL) {
if (zpool_get_prop(zhp, pl->pl_prop, property,
sizeof (property), NULL) != 0)
propstr = "-";
else
propstr = property;
right_justify = zpool_prop_align_right(pl->pl_prop);
} else if ((zpool_prop_feature(pl->pl_user_prop) ||
zpool_prop_unsupported(pl->pl_user_prop)) &&
zpool_prop_get_feature(zhp, pl->pl_user_prop, property,
sizeof (property)) == 0) {
propstr = property;
} else {
propstr = "-";
}
/*
* If this is being called in scripted mode, or if this is the
* last column and it is left-justified, don't include a width
* format specifier.
*/
if (cb->cb_scripted || (pl->pl_next == NULL && !right_justify))
(void) printf("%s", propstr);
else if (right_justify)
(void) printf("%*s", (int)width, propstr);
else
(void) printf("%-*s", (int)width, propstr);
}
(void) printf("\n");
}
static void
print_one_column(zpool_prop_t prop, uint64_t value, boolean_t scripted,
boolean_t valid)
{
char propval[64];
boolean_t fixed;
size_t width = zprop_width(prop, &fixed, ZFS_TYPE_POOL);
switch (prop) {
case ZPOOL_PROP_EXPANDSZ:
if (value == 0)
(void) strlcpy(propval, "-", sizeof (propval));
else
zfs_nicenum(value, propval, sizeof (propval));
break;
case ZPOOL_PROP_FRAGMENTATION:
if (value == ZFS_FRAG_INVALID) {
(void) strlcpy(propval, "-", sizeof (propval));
} else {
(void) snprintf(propval, sizeof (propval), "%llu%%",
(unsigned long long)value);
}
break;
case ZPOOL_PROP_CAPACITY:
(void) snprintf(propval, sizeof (propval), "%llu%%",
(unsigned long long)value);
break;
default:
zfs_nicenum(value, propval, sizeof (propval));
}
if (!valid)
(void) strlcpy(propval, "-", sizeof (propval));
if (scripted)
(void) printf("\t%s", propval);
else
(void) printf(" %*s", (int)width, propval);
}
void
print_list_stats(zpool_handle_t *zhp, const char *name, nvlist_t *nv,
list_cbdata_t *cb, int depth)
{
nvlist_t **child;
vdev_stat_t *vs;
uint_t c, children;
char *vname;
boolean_t scripted = cb->cb_scripted;
uint64_t islog = B_FALSE;
boolean_t haslog = B_FALSE;
char *dashes = "%-*s - - - - - -\n";
verify(nvlist_lookup_uint64_array(nv, ZPOOL_CONFIG_VDEV_STATS,
(uint64_t **)&vs, &c) == 0);
if (name != NULL) {
boolean_t toplevel = (vs->vs_space != 0);
uint64_t cap;
if (scripted)
(void) printf("\t%s", name);
else if (strlen(name) + depth > cb->cb_namewidth)
(void) printf("%*s%s", depth, "", name);
else
(void) printf("%*s%s%*s", depth, "", name,
(int)(cb->cb_namewidth - strlen(name) - depth), "");
/*
* Print the properties for the individual vdevs. Some
* properties are only applicable to toplevel vdevs. The
* 'toplevel' boolean value is passed to the print_one_column()
* to indicate that the value is valid.
*/
print_one_column(ZPOOL_PROP_SIZE, vs->vs_space, scripted,
toplevel);
print_one_column(ZPOOL_PROP_ALLOCATED, vs->vs_alloc, scripted,
toplevel);
print_one_column(ZPOOL_PROP_FREE, vs->vs_space - vs->vs_alloc,
scripted, toplevel);
print_one_column(ZPOOL_PROP_EXPANDSZ, vs->vs_esize, scripted,
B_TRUE);
print_one_column(ZPOOL_PROP_FRAGMENTATION,
vs->vs_fragmentation, scripted,
(vs->vs_fragmentation != ZFS_FRAG_INVALID && toplevel));
cap = (vs->vs_space == 0) ? 0 :
(vs->vs_alloc * 100 / vs->vs_space);
print_one_column(ZPOOL_PROP_CAPACITY, cap, scripted, toplevel);
(void) printf("\n");
}
if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
&child, &children) != 0)
return;
for (c = 0; c < children; c++) {
uint64_t ishole = B_FALSE;
if (nvlist_lookup_uint64(child[c],
ZPOOL_CONFIG_IS_HOLE, &ishole) == 0 && ishole)
continue;
if (nvlist_lookup_uint64(child[c],
ZPOOL_CONFIG_IS_LOG, &islog) == 0 && islog) {
haslog = B_TRUE;
continue;
}
vname = zpool_vdev_name(g_zfs, zhp, child[c],
cb->cb_name_flags);
print_list_stats(zhp, vname, child[c], cb, depth + 2);
free(vname);
}
if (haslog == B_TRUE) {
/* LINTED E_SEC_PRINTF_VAR_FMT */
(void) printf(dashes, cb->cb_namewidth, "log");
for (c = 0; c < children; c++) {
if (nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_LOG,
&islog) != 0 || !islog)
continue;
vname = zpool_vdev_name(g_zfs, zhp, child[c],
cb->cb_name_flags);
print_list_stats(zhp, vname, child[c], cb, depth + 2);
free(vname);
}
}
if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_L2CACHE,
&child, &children) == 0 && children > 0) {
/* LINTED E_SEC_PRINTF_VAR_FMT */
(void) printf(dashes, cb->cb_namewidth, "cache");
for (c = 0; c < children; c++) {
vname = zpool_vdev_name(g_zfs, zhp, child[c],
cb->cb_name_flags);
print_list_stats(zhp, vname, child[c], cb, depth + 2);
free(vname);
}
}
if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_SPARES, &child,
&children) == 0 && children > 0) {
/* LINTED E_SEC_PRINTF_VAR_FMT */
(void) printf(dashes, cb->cb_namewidth, "spare");
for (c = 0; c < children; c++) {
vname = zpool_vdev_name(g_zfs, zhp, child[c],
cb->cb_name_flags);
print_list_stats(zhp, vname, child[c], cb, depth + 2);
free(vname);
}
}
}
/*
* Generic callback function to list a pool.
*/
int
list_callback(zpool_handle_t *zhp, void *data)
{
list_cbdata_t *cbp = data;
nvlist_t *config;
nvlist_t *nvroot;
config = zpool_get_config(zhp, NULL);
print_pool(zhp, cbp);
if (!cbp->cb_verbose)
return (0);
verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
&nvroot) == 0);
print_list_stats(zhp, NULL, nvroot, cbp, 0);
return (0);
}
/*
* zpool list [-gHLP] [-o prop[,prop]*] [-T d|u] [pool] ... [interval [count]]
*
* -g Display guid for individual vdev name.
* -H Scripted mode. Don't display headers, and separate properties
* by a single tab.
* -L Follow links when resolving vdev path name.
* -o List of properties to display. Defaults to
* "name,size,allocated,free,expandsize,fragmentation,capacity,"
* "dedupratio,health,altroot"
* -P Display full path for vdev name.
* -T Display a timestamp in date(1) or Unix format
*
* List all pools in the system, whether or not they're healthy. Output space
* statistics for each one, as well as health status summary.
*/
int
zpool_do_list(int argc, char **argv)
{
int c;
int ret = 0;
list_cbdata_t cb = { 0 };
static char default_props[] =
"name,size,allocated,free,expandsize,fragmentation,capacity,"
"dedupratio,health,altroot";
char *props = default_props;
unsigned long interval = 0, count = 0;
zpool_list_t *list;
boolean_t first = B_TRUE;
/* check options */
while ((c = getopt(argc, argv, ":gHLo:PT:v")) != -1) {
switch (c) {
case 'g':
cb.cb_name_flags |= VDEV_NAME_GUID;
break;
case 'H':
cb.cb_scripted = B_TRUE;
break;
case 'L':
cb.cb_name_flags |= VDEV_NAME_FOLLOW_LINKS;
break;
case 'o':
props = optarg;
break;
case 'P':
cb.cb_name_flags |= VDEV_NAME_PATH;
break;
case 'T':
get_timestamp_arg(*optarg);
break;
case 'v':
cb.cb_verbose = B_TRUE;
break;
case ':':
(void) fprintf(stderr, gettext("missing argument for "
"'%c' option\n"), optopt);
usage(B_FALSE);
break;
case '?':
(void) fprintf(stderr, gettext("invalid option '%c'\n"),
optopt);
usage(B_FALSE);
}
}
argc -= optind;
argv += optind;
get_interval_count(&argc, argv, &interval, &count);
if (zprop_get_list(g_zfs, props, &cb.cb_proplist, ZFS_TYPE_POOL) != 0)
usage(B_FALSE);
for (;;) {
if ((list = pool_list_get(argc, argv, &cb.cb_proplist,
&ret)) == NULL)
return (1);
if (pool_list_count(list) == 0)
break;
if (timestamp_fmt != NODATE)
print_timestamp(timestamp_fmt);
if (!cb.cb_scripted && (first || cb.cb_verbose)) {
print_header(&cb);
first = B_FALSE;
}
ret = pool_list_iter(list, B_TRUE, list_callback, &cb);
if (interval == 0)
break;
if (count != 0 && --count == 0)
break;
pool_list_free(list);
(void) sleep(interval);
}
if (argc == 0 && !cb.cb_scripted && pool_list_count(list) == 0) {
(void) printf(gettext("no pools available\n"));
ret = 0;
}
pool_list_free(list);
zprop_free_list(cb.cb_proplist);
return (ret);
}
static int
zpool_do_attach_or_replace(int argc, char **argv, int replacing)
{
boolean_t force = B_FALSE;
int c;
nvlist_t *nvroot;
char *poolname, *old_disk, *new_disk;
zpool_handle_t *zhp;
nvlist_t *props = NULL;
char *propval;
int ret;
/* check options */
while ((c = getopt(argc, argv, "fo:")) != -1) {
switch (c) {
case 'f':
force = B_TRUE;
break;
case 'o':
if ((propval = strchr(optarg, '=')) == NULL) {
(void) fprintf(stderr, gettext("missing "
"'=' for -o option\n"));
usage(B_FALSE);
}
*propval = '\0';
propval++;
if ((strcmp(optarg, ZPOOL_CONFIG_ASHIFT) != 0) ||
(add_prop_list(optarg, propval, &props, B_TRUE)))
usage(B_FALSE);
break;
case '?':
(void) fprintf(stderr, gettext("invalid option '%c'\n"),
optopt);
usage(B_FALSE);
}
}
argc -= optind;
argv += optind;
/* get pool name and check number of arguments */
if (argc < 1) {
(void) fprintf(stderr, gettext("missing pool name argument\n"));
usage(B_FALSE);
}
poolname = argv[0];
if (argc < 2) {
(void) fprintf(stderr,
gettext("missing <device> specification\n"));
usage(B_FALSE);
}
old_disk = argv[1];
if (argc < 3) {
if (!replacing) {
(void) fprintf(stderr,
gettext("missing <new_device> specification\n"));
usage(B_FALSE);
}
new_disk = old_disk;
argc -= 1;
argv += 1;
} else {
new_disk = argv[2];
argc -= 2;
argv += 2;
}
if (argc > 1) {
(void) fprintf(stderr, gettext("too many arguments\n"));
usage(B_FALSE);
}
if ((zhp = zpool_open(g_zfs, poolname)) == NULL)
return (1);
if (zpool_get_config(zhp, NULL) == NULL) {
(void) fprintf(stderr, gettext("pool '%s' is unavailable\n"),
poolname);
zpool_close(zhp);
return (1);
}
nvroot = make_root_vdev(zhp, props, force, B_FALSE, replacing, B_FALSE,
argc, argv);
if (nvroot == NULL) {
zpool_close(zhp);
return (1);
}
ret = zpool_vdev_attach(zhp, old_disk, new_disk, nvroot, replacing);
nvlist_free(nvroot);
zpool_close(zhp);
return (ret);
}
/*
* zpool replace [-f] <pool> <device> <new_device>
*
* -f Force attach, even if <new_device> appears to be in use.
*
* Replace <device> with <new_device>.
*/
/* ARGSUSED */
int
zpool_do_replace(int argc, char **argv)
{
return (zpool_do_attach_or_replace(argc, argv, B_TRUE));
}
/*
* zpool attach [-f] [-o property=value] <pool> <device> <new_device>
*
* -f Force attach, even if <new_device> appears to be in use.
* -o Set property=value.
*
* Attach <new_device> to the mirror containing <device>. If <device> is not
* part of a mirror, then <device> will be transformed into a mirror of
* <device> and <new_device>. In either case, <new_device> will begin life
* with a DTL of [0, now], and will immediately begin to resilver itself.
*/
int
zpool_do_attach(int argc, char **argv)
{
return (zpool_do_attach_or_replace(argc, argv, B_FALSE));
}
/*
* zpool detach [-f] <pool> <device>
*
* -f Force detach of <device>, even if DTLs argue against it
* (not supported yet)
*
* Detach a device from a mirror. The operation will be refused if <device>
* is the last device in the mirror, or if the DTLs indicate that this device
* has the only valid copy of some data.
*/
/* ARGSUSED */
int
zpool_do_detach(int argc, char **argv)
{
int c;
char *poolname, *path;
zpool_handle_t *zhp;
int ret;
/* check options */
while ((c = getopt(argc, argv, "f")) != -1) {
switch (c) {
case 'f':
case '?':
(void) fprintf(stderr, gettext("invalid option '%c'\n"),
optopt);
usage(B_FALSE);
}
}
argc -= optind;
argv += optind;
/* get pool name and check number of arguments */
if (argc < 1) {
(void) fprintf(stderr, gettext("missing pool name argument\n"));
usage(B_FALSE);
}
if (argc < 2) {
(void) fprintf(stderr,
gettext("missing <device> specification\n"));
usage(B_FALSE);
}
poolname = argv[0];
path = argv[1];
if ((zhp = zpool_open(g_zfs, poolname)) == NULL)
return (1);
ret = zpool_vdev_detach(zhp, path);
zpool_close(zhp);
return (ret);
}
/*
* zpool split [-gLnP] [-o prop=val] ...
* [-o mntopt] ...
* [-R altroot] <pool> <newpool> [<device> ...]
*
* -g Display guid for individual vdev name.
* -L Follow links when resolving vdev path name.
* -n Do not split the pool, but display the resulting layout if
* it were to be split.
* -o Set property=value, or set mount options.
* -P Display full path for vdev name.
* -R Mount the split-off pool under an alternate root.
*
* Splits the named pool and gives it the new pool name. Devices to be split
* off may be listed, provided that no more than one device is specified
* per top-level vdev mirror. The newly split pool is left in an exported
* state unless -R is specified.
*
* Restrictions: the top-level of the pool pool must only be made up of
* mirrors; all devices in the pool must be healthy; no device may be
* undergoing a resilvering operation.
*/
int
zpool_do_split(int argc, char **argv)
{
char *srcpool, *newpool, *propval;
char *mntopts = NULL;
splitflags_t flags;
int c, ret = 0;
zpool_handle_t *zhp;
nvlist_t *config, *props = NULL;
flags.dryrun = B_FALSE;
flags.import = B_FALSE;
flags.name_flags = 0;
/* check options */
while ((c = getopt(argc, argv, ":gLR:no:P")) != -1) {
switch (c) {
case 'g':
flags.name_flags |= VDEV_NAME_GUID;
break;
case 'L':
flags.name_flags |= VDEV_NAME_FOLLOW_LINKS;
break;
case 'R':
flags.import = B_TRUE;
if (add_prop_list(
zpool_prop_to_name(ZPOOL_PROP_ALTROOT), optarg,
&props, B_TRUE) != 0) {
nvlist_free(props);
usage(B_FALSE);
}
break;
case 'n':
flags.dryrun = B_TRUE;
break;
case 'o':
if ((propval = strchr(optarg, '=')) != NULL) {
*propval = '\0';
propval++;
if (add_prop_list(optarg, propval,
&props, B_TRUE) != 0) {
nvlist_free(props);
usage(B_FALSE);
}
} else {
mntopts = optarg;
}
break;
case 'P':
flags.name_flags |= VDEV_NAME_PATH;
break;
case ':':
(void) fprintf(stderr, gettext("missing argument for "
"'%c' option\n"), optopt);
usage(B_FALSE);
break;
case '?':
(void) fprintf(stderr, gettext("invalid option '%c'\n"),
optopt);
usage(B_FALSE);
break;
}
}
if (!flags.import && mntopts != NULL) {
(void) fprintf(stderr, gettext("setting mntopts is only "
"valid when importing the pool\n"));
usage(B_FALSE);
}
argc -= optind;
argv += optind;
if (argc < 1) {
(void) fprintf(stderr, gettext("Missing pool name\n"));
usage(B_FALSE);
}
if (argc < 2) {
(void) fprintf(stderr, gettext("Missing new pool name\n"));
usage(B_FALSE);
}
srcpool = argv[0];
newpool = argv[1];
argc -= 2;
argv += 2;
if ((zhp = zpool_open(g_zfs, srcpool)) == NULL)
return (1);
config = split_mirror_vdev(zhp, newpool, props, flags, argc, argv);
if (config == NULL) {
ret = 1;
} else {
if (flags.dryrun) {
(void) printf(gettext("would create '%s' with the "
"following layout:\n\n"), newpool);
print_vdev_tree(NULL, newpool, config, 0, B_FALSE,
flags.name_flags);
}
nvlist_free(config);
}
zpool_close(zhp);
if (ret != 0 || flags.dryrun || !flags.import)
return (ret);
/*
* The split was successful. Now we need to open the new
* pool and import it.
*/
if ((zhp = zpool_open_canfail(g_zfs, newpool)) == NULL)
return (1);
if (zpool_get_state(zhp) != POOL_STATE_UNAVAIL &&
zpool_enable_datasets(zhp, mntopts, 0) != 0) {
ret = 1;
(void) fprintf(stderr, gettext("Split was successful, but "
"the datasets could not all be mounted\n"));
(void) fprintf(stderr, gettext("Try doing '%s' with a "
"different altroot\n"), "zpool import");
}
zpool_close(zhp);
return (ret);
}
/*
* zpool online <pool> <device> ...
*/
int
zpool_do_online(int argc, char **argv)
{
int c, i;
char *poolname;
zpool_handle_t *zhp;
int ret = 0;
vdev_state_t newstate;
int flags = 0;
/* check options */
while ((c = getopt(argc, argv, "et")) != -1) {
switch (c) {
case 'e':
flags |= ZFS_ONLINE_EXPAND;
break;
case 't':
case '?':
(void) fprintf(stderr, gettext("invalid option '%c'\n"),
optopt);
usage(B_FALSE);
}
}
argc -= optind;
argv += optind;
/* get pool name and check number of arguments */
if (argc < 1) {
(void) fprintf(stderr, gettext("missing pool name\n"));
usage(B_FALSE);
}
if (argc < 2) {
(void) fprintf(stderr, gettext("missing device name\n"));
usage(B_FALSE);
}
poolname = argv[0];
if ((zhp = zpool_open(g_zfs, poolname)) == NULL)
return (1);
for (i = 1; i < argc; i++) {
if (zpool_vdev_online(zhp, argv[i], flags, &newstate) == 0) {
if (newstate != VDEV_STATE_HEALTHY) {
(void) printf(gettext("warning: device '%s' "
"onlined, but remains in faulted state\n"),
argv[i]);
if (newstate == VDEV_STATE_FAULTED)
(void) printf(gettext("use 'zpool "
"clear' to restore a faulted "
"device\n"));
else
(void) printf(gettext("use 'zpool "
"replace' to replace devices "
"that are no longer present\n"));
}
} else {
ret = 1;
}
}
zpool_close(zhp);
return (ret);
}
/*
* zpool offline [-ft] <pool> <device> ...
*
* -f Force the device into the offline state, even if doing
* so would appear to compromise pool availability.
* (not supported yet)
*
* -t Only take the device off-line temporarily. The offline
* state will not be persistent across reboots.
*/
/* ARGSUSED */
int
zpool_do_offline(int argc, char **argv)
{
int c, i;
char *poolname;
zpool_handle_t *zhp;
int ret = 0;
boolean_t istmp = B_FALSE;
/* check options */
while ((c = getopt(argc, argv, "ft")) != -1) {
switch (c) {
case 't':
istmp = B_TRUE;
break;
case 'f':
case '?':
(void) fprintf(stderr, gettext("invalid option '%c'\n"),
optopt);
usage(B_FALSE);
}
}
argc -= optind;
argv += optind;
/* get pool name and check number of arguments */
if (argc < 1) {
(void) fprintf(stderr, gettext("missing pool name\n"));
usage(B_FALSE);
}
if (argc < 2) {
(void) fprintf(stderr, gettext("missing device name\n"));
usage(B_FALSE);
}
poolname = argv[0];
if ((zhp = zpool_open(g_zfs, poolname)) == NULL)
return (1);
for (i = 1; i < argc; i++) {
if (zpool_vdev_offline(zhp, argv[i], istmp) != 0)
ret = 1;
}
zpool_close(zhp);
return (ret);
}
/*
* zpool clear <pool> [device]
*
* Clear all errors associated with a pool or a particular device.
*/
int
zpool_do_clear(int argc, char **argv)
{
int c;
int ret = 0;
boolean_t dryrun = B_FALSE;
boolean_t do_rewind = B_FALSE;
boolean_t xtreme_rewind = B_FALSE;
uint32_t rewind_policy = ZPOOL_NO_REWIND;
nvlist_t *policy = NULL;
zpool_handle_t *zhp;
char *pool, *device;
/* check options */
while ((c = getopt(argc, argv, "FnX")) != -1) {
switch (c) {
case 'F':
do_rewind = B_TRUE;
break;
case 'n':
dryrun = B_TRUE;
break;
case 'X':
xtreme_rewind = B_TRUE;
break;
case '?':
(void) fprintf(stderr, gettext("invalid option '%c'\n"),
optopt);
usage(B_FALSE);
}
}
argc -= optind;
argv += optind;
if (argc < 1) {
(void) fprintf(stderr, gettext("missing pool name\n"));
usage(B_FALSE);
}
if (argc > 2) {
(void) fprintf(stderr, gettext("too many arguments\n"));
usage(B_FALSE);
}
if ((dryrun || xtreme_rewind) && !do_rewind) {
(void) fprintf(stderr,
gettext("-n or -X only meaningful with -F\n"));
usage(B_FALSE);
}
if (dryrun)
rewind_policy = ZPOOL_TRY_REWIND;
else if (do_rewind)
rewind_policy = ZPOOL_DO_REWIND;
if (xtreme_rewind)
rewind_policy |= ZPOOL_EXTREME_REWIND;
/* In future, further rewind policy choices can be passed along here */
if (nvlist_alloc(&policy, NV_UNIQUE_NAME, 0) != 0 ||
nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind_policy) != 0)
return (1);
pool = argv[0];
device = argc == 2 ? argv[1] : NULL;
if ((zhp = zpool_open_canfail(g_zfs, pool)) == NULL) {
nvlist_free(policy);
return (1);
}
if (zpool_clear(zhp, device, policy) != 0)
ret = 1;
zpool_close(zhp);
nvlist_free(policy);
return (ret);
}
/*
* zpool reguid <pool>
*/
int
zpool_do_reguid(int argc, char **argv)
{
int c;
char *poolname;
zpool_handle_t *zhp;
int ret = 0;
/* check options */
while ((c = getopt(argc, argv, "")) != -1) {
switch (c) {
case '?':
(void) fprintf(stderr, gettext("invalid option '%c'\n"),
optopt);
usage(B_FALSE);
}
}
argc -= optind;
argv += optind;
/* get pool name and check number of arguments */
if (argc < 1) {
(void) fprintf(stderr, gettext("missing pool name\n"));
usage(B_FALSE);
}
if (argc > 1) {
(void) fprintf(stderr, gettext("too many arguments\n"));
usage(B_FALSE);
}
poolname = argv[0];
if ((zhp = zpool_open(g_zfs, poolname)) == NULL)
return (1);
ret = zpool_reguid(zhp);
zpool_close(zhp);
return (ret);
}
/*
* zpool reopen <pool>
*
* Reopen the pool so that the kernel can update the sizes of all vdevs.
*/
int
zpool_do_reopen(int argc, char **argv)
{
int c;
int ret = 0;
zpool_handle_t *zhp;
char *pool;
/* check options */
while ((c = getopt(argc, argv, "")) != -1) {
switch (c) {
case '?':
(void) fprintf(stderr, gettext("invalid option '%c'\n"),
optopt);
usage(B_FALSE);
}
}
argc--;
argv++;
if (argc < 1) {
(void) fprintf(stderr, gettext("missing pool name\n"));
usage(B_FALSE);
}
if (argc > 1) {
(void) fprintf(stderr, gettext("too many arguments\n"));
usage(B_FALSE);
}
pool = argv[0];
if ((zhp = zpool_open_canfail(g_zfs, pool)) == NULL)
return (1);
ret = zpool_reopen(zhp);
zpool_close(zhp);
return (ret);
}
typedef struct scrub_cbdata {
int cb_type;
int cb_argc;
char **cb_argv;
} scrub_cbdata_t;
int
scrub_callback(zpool_handle_t *zhp, void *data)
{
scrub_cbdata_t *cb = data;
int err;
/*
* Ignore faulted pools.
*/
if (zpool_get_state(zhp) == POOL_STATE_UNAVAIL) {
(void) fprintf(stderr, gettext("cannot scrub '%s': pool is "
"currently unavailable\n"), zpool_get_name(zhp));
return (1);
}
err = zpool_scan(zhp, cb->cb_type);
return (err != 0);
}
/*
* zpool scrub [-s] <pool> ...
*
* -s Stop. Stops any in-progress scrub.
*/
int
zpool_do_scrub(int argc, char **argv)
{
int c;
scrub_cbdata_t cb;
cb.cb_type = POOL_SCAN_SCRUB;
/* check options */
while ((c = getopt(argc, argv, "s")) != -1) {
switch (c) {
case 's':
cb.cb_type = POOL_SCAN_NONE;
break;
case '?':
(void) fprintf(stderr, gettext("invalid option '%c'\n"),
optopt);
usage(B_FALSE);
}
}
cb.cb_argc = argc;
cb.cb_argv = argv;
argc -= optind;
argv += optind;
if (argc < 1) {
(void) fprintf(stderr, gettext("missing pool name argument\n"));
usage(B_FALSE);
}
return (for_each_pool(argc, argv, B_TRUE, NULL, scrub_callback, &cb));
}
typedef struct status_cbdata {
int cb_count;
int cb_name_flags;
boolean_t cb_allpools;
boolean_t cb_verbose;
boolean_t cb_explain;
boolean_t cb_first;
boolean_t cb_dedup_stats;
} status_cbdata_t;
/*
* Print out detailed scrub status.
*/
void
print_scan_status(pool_scan_stat_t *ps)
{
time_t start, end;
uint64_t elapsed, mins_left, hours_left;
uint64_t pass_exam, examined, total;
uint_t rate;
double fraction_done;
char processed_buf[7], examined_buf[7], total_buf[7], rate_buf[7];
(void) printf(gettext(" scan: "));
/* If there's never been a scan, there's not much to say. */
if (ps == NULL || ps->pss_func == POOL_SCAN_NONE ||
ps->pss_func >= POOL_SCAN_FUNCS) {
(void) printf(gettext("none requested\n"));
return;
}
start = ps->pss_start_time;
end = ps->pss_end_time;
zfs_nicenum(ps->pss_processed, processed_buf, sizeof (processed_buf));
assert(ps->pss_func == POOL_SCAN_SCRUB ||
ps->pss_func == POOL_SCAN_RESILVER);
/*
* Scan is finished or canceled.
*/
if (ps->pss_state == DSS_FINISHED) {
uint64_t minutes_taken = (end - start) / 60;
char *fmt = NULL;
if (ps->pss_func == POOL_SCAN_SCRUB) {
fmt = gettext("scrub repaired %s in %lluh%um with "
"%llu errors on %s");
} else if (ps->pss_func == POOL_SCAN_RESILVER) {
fmt = gettext("resilvered %s in %lluh%um with "
"%llu errors on %s");
}
/* LINTED */
(void) printf(fmt, processed_buf,
(u_longlong_t)(minutes_taken / 60),
(uint_t)(minutes_taken % 60),
(u_longlong_t)ps->pss_errors,
ctime((time_t *)&end));
return;
} else if (ps->pss_state == DSS_CANCELED) {
if (ps->pss_func == POOL_SCAN_SCRUB) {
(void) printf(gettext("scrub canceled on %s"),
ctime(&end));
} else if (ps->pss_func == POOL_SCAN_RESILVER) {
(void) printf(gettext("resilver canceled on %s"),
ctime(&end));
}
return;
}
assert(ps->pss_state == DSS_SCANNING);
/*
* Scan is in progress.
*/
if (ps->pss_func == POOL_SCAN_SCRUB) {
(void) printf(gettext("scrub in progress since %s"),
ctime(&start));
} else if (ps->pss_func == POOL_SCAN_RESILVER) {
(void) printf(gettext("resilver in progress since %s"),
ctime(&start));
}
examined = ps->pss_examined ? ps->pss_examined : 1;
total = ps->pss_to_examine;
fraction_done = (double)examined / total;
/* elapsed time for this pass */
elapsed = time(NULL) - ps->pss_pass_start;
elapsed = elapsed ? elapsed : 1;
pass_exam = ps->pss_pass_exam ? ps->pss_pass_exam : 1;
rate = pass_exam / elapsed;
rate = rate ? rate : 1;
mins_left = ((total - examined) / rate) / 60;
hours_left = mins_left / 60;
zfs_nicenum(examined, examined_buf, sizeof (examined_buf));
zfs_nicenum(total, total_buf, sizeof (total_buf));
zfs_nicenum(rate, rate_buf, sizeof (rate_buf));
/*
* do not print estimated time if hours_left is more than 30 days
*/
(void) printf(gettext("\t%s scanned out of %s at %s/s"),
examined_buf, total_buf, rate_buf);
if (hours_left < (30 * 24)) {
(void) printf(gettext(", %lluh%um to go\n"),
(u_longlong_t)hours_left, (uint_t)(mins_left % 60));
} else {
(void) printf(gettext(
", (scan is slow, no estimated time)\n"));
}
if (ps->pss_func == POOL_SCAN_RESILVER) {
(void) printf(gettext("\t%s resilvered, %.2f%% done\n"),
processed_buf, 100 * fraction_done);
} else if (ps->pss_func == POOL_SCAN_SCRUB) {
(void) printf(gettext("\t%s repaired, %.2f%% done\n"),
processed_buf, 100 * fraction_done);
}
}
static void
print_error_log(zpool_handle_t *zhp)
{
nvlist_t *nverrlist = NULL;
nvpair_t *elem;
char *pathname;
size_t len = MAXPATHLEN * 2;
if (zpool_get_errlog(zhp, &nverrlist) != 0) {
(void) printf("errors: List of errors unavailable "
"(insufficient privileges)\n");
return;
}
(void) printf("errors: Permanent errors have been "
"detected in the following files:\n\n");
pathname = safe_malloc(len);
elem = NULL;
while ((elem = nvlist_next_nvpair(nverrlist, elem)) != NULL) {
nvlist_t *nv;
uint64_t dsobj, obj;
verify(nvpair_value_nvlist(elem, &nv) == 0);
verify(nvlist_lookup_uint64(nv, ZPOOL_ERR_DATASET,
&dsobj) == 0);
verify(nvlist_lookup_uint64(nv, ZPOOL_ERR_OBJECT,
&obj) == 0);
zpool_obj_to_path(zhp, dsobj, obj, pathname, len);
(void) printf("%7s %s\n", "", pathname);
}
free(pathname);
nvlist_free(nverrlist);
}
static void
print_spares(zpool_handle_t *zhp, nvlist_t **spares, uint_t nspares,
int namewidth, int name_flags)
{
uint_t i;
char *name;
if (nspares == 0)
return;
(void) printf(gettext("\tspares\n"));
for (i = 0; i < nspares; i++) {
name = zpool_vdev_name(g_zfs, zhp, spares[i], name_flags);
print_status_config(zhp, name, spares[i],
namewidth, 2, B_TRUE, name_flags);
free(name);
}
}
static void
print_l2cache(zpool_handle_t *zhp, nvlist_t **l2cache, uint_t nl2cache,
int namewidth, int name_flags)
{
uint_t i;
char *name;
if (nl2cache == 0)
return;
(void) printf(gettext("\tcache\n"));
for (i = 0; i < nl2cache; i++) {
name = zpool_vdev_name(g_zfs, zhp, l2cache[i], name_flags);
print_status_config(zhp, name, l2cache[i],
namewidth, 2, B_FALSE, name_flags);
free(name);
}
}
static void
print_dedup_stats(nvlist_t *config)
{
ddt_histogram_t *ddh;
ddt_stat_t *dds;
ddt_object_t *ddo;
uint_t c;
/*
* If the pool was faulted then we may not have been able to
* obtain the config. Otherwise, if we have anything in the dedup
* table continue processing the stats.
*/
if (nvlist_lookup_uint64_array(config, ZPOOL_CONFIG_DDT_OBJ_STATS,
(uint64_t **)&ddo, &c) != 0)
return;
(void) printf("\n");
(void) printf(gettext(" dedup: "));
if (ddo->ddo_count == 0) {
(void) printf(gettext("no DDT entries\n"));
return;
}
(void) printf("DDT entries %llu, size %llu on disk, %llu in core\n",
(u_longlong_t)ddo->ddo_count,
(u_longlong_t)ddo->ddo_dspace,
(u_longlong_t)ddo->ddo_mspace);
verify(nvlist_lookup_uint64_array(config, ZPOOL_CONFIG_DDT_STATS,
(uint64_t **)&dds, &c) == 0);
verify(nvlist_lookup_uint64_array(config, ZPOOL_CONFIG_DDT_HISTOGRAM,
(uint64_t **)&ddh, &c) == 0);
zpool_dump_ddt(dds, ddh);
}
/*
* Display a summary of pool status. Displays a summary such as:
*
* pool: tank
* status: DEGRADED
* reason: One or more devices ...
* see: http://zfsonlinux.org/msg/ZFS-xxxx-01
* config:
* mirror DEGRADED
* c1t0d0 OK
* c2t0d0 UNAVAIL
*
* When given the '-v' option, we print out the complete config. If the '-e'
* option is specified, then we print out error rate information as well.
*/
int
status_callback(zpool_handle_t *zhp, void *data)
{
status_cbdata_t *cbp = data;
nvlist_t *config, *nvroot;
char *msgid;
zpool_status_t reason;
zpool_errata_t errata;
const char *health;
uint_t c;
vdev_stat_t *vs;
config = zpool_get_config(zhp, NULL);
reason = zpool_get_status(zhp, &msgid, &errata);
cbp->cb_count++;
/*
* If we were given 'zpool status -x', only report those pools with
* problems.
*/
if (cbp->cb_explain &&
(reason == ZPOOL_STATUS_OK ||
reason == ZPOOL_STATUS_VERSION_OLDER ||
reason == ZPOOL_STATUS_FEAT_DISABLED)) {
if (!cbp->cb_allpools) {
(void) printf(gettext("pool '%s' is healthy\n"),
zpool_get_name(zhp));
if (cbp->cb_first)
cbp->cb_first = B_FALSE;
}
return (0);
}
if (cbp->cb_first)
cbp->cb_first = B_FALSE;
else
(void) printf("\n");
verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
&nvroot) == 0);
verify(nvlist_lookup_uint64_array(nvroot, ZPOOL_CONFIG_VDEV_STATS,
(uint64_t **)&vs, &c) == 0);
health = zpool_state_to_name(vs->vs_state, vs->vs_aux);
(void) printf(gettext(" pool: %s\n"), zpool_get_name(zhp));
(void) printf(gettext(" state: %s\n"), health);
switch (reason) {
case ZPOOL_STATUS_MISSING_DEV_R:
(void) printf(gettext("status: One or more devices could not "
"be opened. Sufficient replicas exist for\n\tthe pool to "
"continue functioning in a degraded state.\n"));
(void) printf(gettext("action: Attach the missing device and "
"online it using 'zpool online'.\n"));
break;
case ZPOOL_STATUS_MISSING_DEV_NR:
(void) printf(gettext("status: One or more devices could not "
"be opened. There are insufficient\n\treplicas for the "
"pool to continue functioning.\n"));
(void) printf(gettext("action: Attach the missing device and "
"online it using 'zpool online'.\n"));
break;
case ZPOOL_STATUS_CORRUPT_LABEL_R:
(void) printf(gettext("status: One or more devices could not "
"be used because the label is missing or\n\tinvalid. "
"Sufficient replicas exist for the pool to continue\n\t"
"functioning in a degraded state.\n"));
(void) printf(gettext("action: Replace the device using "
"'zpool replace'.\n"));
break;
case ZPOOL_STATUS_CORRUPT_LABEL_NR:
(void) printf(gettext("status: One or more devices could not "
"be used because the label is missing \n\tor invalid. "
"There are insufficient replicas for the pool to "
"continue\n\tfunctioning.\n"));
zpool_explain_recover(zpool_get_handle(zhp),
zpool_get_name(zhp), reason, config);
break;
case ZPOOL_STATUS_FAILING_DEV:
(void) printf(gettext("status: One or more devices has "
"experienced an unrecoverable error. An\n\tattempt was "
"made to correct the error. Applications are "
"unaffected.\n"));
(void) printf(gettext("action: Determine if the device needs "
"to be replaced, and clear the errors\n\tusing "
"'zpool clear' or replace the device with 'zpool "
"replace'.\n"));
break;
case ZPOOL_STATUS_OFFLINE_DEV:
(void) printf(gettext("status: One or more devices has "
"been taken offline by the administrator.\n\tSufficient "
"replicas exist for the pool to continue functioning in "
"a\n\tdegraded state.\n"));
(void) printf(gettext("action: Online the device using "
"'zpool online' or replace the device with\n\t'zpool "
"replace'.\n"));
break;
case ZPOOL_STATUS_REMOVED_DEV:
(void) printf(gettext("status: One or more devices has "
"been removed by the administrator.\n\tSufficient "
"replicas exist for the pool to continue functioning in "
"a\n\tdegraded state.\n"));
(void) printf(gettext("action: Online the device using "
"'zpool online' or replace the device with\n\t'zpool "
"replace'.\n"));
break;
case ZPOOL_STATUS_RESILVERING:
(void) printf(gettext("status: One or more devices is "
"currently being resilvered. The pool will\n\tcontinue "
"to function, possibly in a degraded state.\n"));
(void) printf(gettext("action: Wait for the resilver to "
"complete.\n"));
break;
case ZPOOL_STATUS_CORRUPT_DATA:
(void) printf(gettext("status: One or more devices has "
"experienced an error resulting in data\n\tcorruption. "
"Applications may be affected.\n"));
(void) printf(gettext("action: Restore the file in question "
"if possible. Otherwise restore the\n\tentire pool from "
"backup.\n"));
break;
case ZPOOL_STATUS_CORRUPT_POOL:
(void) printf(gettext("status: The pool metadata is corrupted "
"and the pool cannot be opened.\n"));
zpool_explain_recover(zpool_get_handle(zhp),
zpool_get_name(zhp), reason, config);
break;
case ZPOOL_STATUS_VERSION_OLDER:
(void) printf(gettext("status: The pool is formatted using a "
"legacy on-disk format. The pool can\n\tstill be used, "
"but some features are unavailable.\n"));
(void) printf(gettext("action: Upgrade the pool using 'zpool "
"upgrade'. Once this is done, the\n\tpool will no longer "
"be accessible on software that does not support\n\t"
"feature flags.\n"));
break;
case ZPOOL_STATUS_VERSION_NEWER:
(void) printf(gettext("status: The pool has been upgraded to a "
"newer, incompatible on-disk version.\n\tThe pool cannot "
"be accessed on this system.\n"));
(void) printf(gettext("action: Access the pool from a system "
"running more recent software, or\n\trestore the pool from "
"backup.\n"));
break;
case ZPOOL_STATUS_FEAT_DISABLED:
(void) printf(gettext("status: Some supported features are not "
"enabled on the pool. The pool can\n\tstill be used, but "
"some features are unavailable.\n"));
(void) printf(gettext("action: Enable all features using "
"'zpool upgrade'. Once this is done,\n\tthe pool may no "
"longer be accessible by software that does not support\n\t"
"the features. See zpool-features(5) for details.\n"));
break;
case ZPOOL_STATUS_UNSUP_FEAT_READ:
(void) printf(gettext("status: The pool cannot be accessed on "
"this system because it uses the\n\tfollowing feature(s) "
"not supported on this system:\n"));
zpool_print_unsup_feat(config);
(void) printf("\n");
(void) printf(gettext("action: Access the pool from a system "
"that supports the required feature(s),\n\tor restore the "
"pool from backup.\n"));
break;
case ZPOOL_STATUS_UNSUP_FEAT_WRITE:
(void) printf(gettext("status: The pool can only be accessed "
"in read-only mode on this system. It\n\tcannot be "
"accessed in read-write mode because it uses the "
"following\n\tfeature(s) not supported on this system:\n"));
zpool_print_unsup_feat(config);
(void) printf("\n");
(void) printf(gettext("action: The pool cannot be accessed in "
"read-write mode. Import the pool with\n"
"\t\"-o readonly=on\", access the pool from a system that "
"supports the\n\trequired feature(s), or restore the "
"pool from backup.\n"));
break;
case ZPOOL_STATUS_FAULTED_DEV_R:
(void) printf(gettext("status: One or more devices are "
"faulted in response to persistent errors.\n\tSufficient "
"replicas exist for the pool to continue functioning "
"in a\n\tdegraded state.\n"));
(void) printf(gettext("action: Replace the faulted device, "
"or use 'zpool clear' to mark the device\n\trepaired.\n"));
break;
case ZPOOL_STATUS_FAULTED_DEV_NR:
(void) printf(gettext("status: One or more devices are "
"faulted in response to persistent errors. There are "
"insufficient replicas for the pool to\n\tcontinue "
"functioning.\n"));
(void) printf(gettext("action: Destroy and re-create the pool "
"from a backup source. Manually marking the device\n"
"\trepaired using 'zpool clear' may allow some data "
"to be recovered.\n"));
break;
case ZPOOL_STATUS_IO_FAILURE_WAIT:
case ZPOOL_STATUS_IO_FAILURE_CONTINUE:
(void) printf(gettext("status: One or more devices are "
"faulted in response to IO failures.\n"));
(void) printf(gettext("action: Make sure the affected devices "
"are connected, then run 'zpool clear'.\n"));
break;
case ZPOOL_STATUS_BAD_LOG:
(void) printf(gettext("status: An intent log record "
"could not be read.\n"
"\tWaiting for adminstrator intervention to fix the "
"faulted pool.\n"));
(void) printf(gettext("action: Either restore the affected "
"device(s) and run 'zpool online',\n"
"\tor ignore the intent log records by running "
"'zpool clear'.\n"));
break;
case ZPOOL_STATUS_HOSTID_MISMATCH:
(void) printf(gettext("status: Mismatch between pool hostid "
"and system hostid on imported pool.\n\tThis pool was "
"previously imported into a system with a different "
"hostid,\n\tand then was verbatim imported into this "
"system.\n"));
(void) printf(gettext("action: Export this pool on all systems "
"on which it is imported.\n"
"\tThen import it to correct the mismatch.\n"));
break;
case ZPOOL_STATUS_ERRATA:
(void) printf(gettext("status: Errata #%d detected.\n"),
errata);
switch (errata) {
case ZPOOL_ERRATA_NONE:
break;
case ZPOOL_ERRATA_ZOL_2094_SCRUB:
(void) printf(gettext("action: To correct the issue "
"run 'zpool scrub'.\n"));
break;
default:
/*
* All errata which allow the pool to be imported
* must contain an action message.
*/
assert(0);
}
break;
default:
/*
* The remaining errors can't actually be generated, yet.
*/
assert(reason == ZPOOL_STATUS_OK);
}
if (msgid != NULL)
(void) printf(gettext(" see: http://zfsonlinux.org/msg/%s\n"),
msgid);
if (config != NULL) {
int namewidth;
uint64_t nerr;
nvlist_t **spares, **l2cache;
uint_t nspares, nl2cache;
pool_scan_stat_t *ps = NULL;
(void) nvlist_lookup_uint64_array(nvroot,
ZPOOL_CONFIG_SCAN_STATS, (uint64_t **)&ps, &c);
print_scan_status(ps);
namewidth = max_width(zhp, nvroot, 0, 0, cbp->cb_name_flags);
if (namewidth < 10)
namewidth = 10;
(void) printf(gettext("config:\n\n"));
(void) printf(gettext("\t%-*s %-8s %5s %5s %5s\n"), namewidth,
"NAME", "STATE", "READ", "WRITE", "CKSUM");
print_status_config(zhp, zpool_get_name(zhp), nvroot,
namewidth, 0, B_FALSE, cbp->cb_name_flags);
if (num_logs(nvroot) > 0)
print_logs(zhp, nvroot, namewidth, B_TRUE,
cbp->cb_name_flags);
if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_L2CACHE,
&l2cache, &nl2cache) == 0)
print_l2cache(zhp, l2cache, nl2cache, namewidth,
cbp->cb_name_flags);
if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES,
&spares, &nspares) == 0)
print_spares(zhp, spares, nspares, namewidth,
cbp->cb_name_flags);
if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_ERRCOUNT,
&nerr) == 0) {
nvlist_t *nverrlist = NULL;
/*
* If the approximate error count is small, get a
* precise count by fetching the entire log and
* uniquifying the results.
*/
if (nerr > 0 && nerr < 100 && !cbp->cb_verbose &&
zpool_get_errlog(zhp, &nverrlist) == 0) {
nvpair_t *elem;
elem = NULL;
nerr = 0;
while ((elem = nvlist_next_nvpair(nverrlist,
elem)) != NULL) {
nerr++;
}
}
nvlist_free(nverrlist);
(void) printf("\n");
if (nerr == 0)
(void) printf(gettext("errors: No known data "
"errors\n"));
else if (!cbp->cb_verbose)
(void) printf(gettext("errors: %llu data "
"errors, use '-v' for a list\n"),
(u_longlong_t)nerr);
else
print_error_log(zhp);
}
if (cbp->cb_dedup_stats)
print_dedup_stats(config);
} else {
(void) printf(gettext("config: The configuration cannot be "
"determined.\n"));
}
return (0);
}
/*
* zpool status [-gLPvx] [-T d|u] [pool] ... [interval [count]]
*
* -g Display guid for individual vdev name.
* -L Follow links when resolving vdev path name.
* -P Display full path for vdev name.
* -v Display complete error logs
* -x Display only pools with potential problems
* -D Display dedup status (undocumented)
* -T Display a timestamp in date(1) or Unix format
*
* Describes the health status of all pools or some subset.
*/
int
zpool_do_status(int argc, char **argv)
{
int c;
int ret;
unsigned long interval = 0, count = 0;
status_cbdata_t cb = { 0 };
/* check options */
while ((c = getopt(argc, argv, "gLPvxDT:")) != -1) {
switch (c) {
case 'g':
cb.cb_name_flags |= VDEV_NAME_GUID;
break;
case 'L':
cb.cb_name_flags |= VDEV_NAME_FOLLOW_LINKS;
break;
case 'P':
cb.cb_name_flags |= VDEV_NAME_PATH;
break;
case 'v':
cb.cb_verbose = B_TRUE;
break;
case 'x':
cb.cb_explain = B_TRUE;
break;
case 'D':
cb.cb_dedup_stats = B_TRUE;
break;
case 'T':
get_timestamp_arg(*optarg);
break;
case '?':
(void) fprintf(stderr, gettext("invalid option '%c'\n"),
optopt);
usage(B_FALSE);
}
}
argc -= optind;
argv += optind;
get_interval_count(&argc, argv, &interval, &count);
if (argc == 0)
cb.cb_allpools = B_TRUE;
cb.cb_first = B_TRUE;
for (;;) {
if (timestamp_fmt != NODATE)
print_timestamp(timestamp_fmt);
ret = for_each_pool(argc, argv, B_TRUE, NULL,
status_callback, &cb);
if (argc == 0 && cb.cb_count == 0)
(void) fprintf(stderr, gettext("no pools available\n"));
else if (cb.cb_explain && cb.cb_first && cb.cb_allpools)
(void) printf(gettext("all pools are healthy\n"));
if (ret != 0)
return (ret);
if (interval == 0)
break;
if (count != 0 && --count == 0)
break;
(void) sleep(interval);
}
return (0);
}
typedef struct upgrade_cbdata {
int cb_first;
int cb_argc;
uint64_t cb_version;
char **cb_argv;
} upgrade_cbdata_t;
static int
check_unsupp_fs(zfs_handle_t *zhp, void *unsupp_fs)
{
int zfs_version = (int) zfs_prop_get_int(zhp, ZFS_PROP_VERSION);
int *count = (int *)unsupp_fs;
if (zfs_version > ZPL_VERSION) {
(void) printf(gettext("%s (v%d) is not supported by this "
"implementation of ZFS.\n"),
zfs_get_name(zhp), zfs_version);
(*count)++;
}
zfs_iter_filesystems(zhp, check_unsupp_fs, unsupp_fs);
zfs_close(zhp);
return (0);
}
static int
upgrade_version(zpool_handle_t *zhp, uint64_t version)
{
int ret;
nvlist_t *config;
uint64_t oldversion;
int unsupp_fs = 0;
config = zpool_get_config(zhp, NULL);
verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION,
&oldversion) == 0);
assert(SPA_VERSION_IS_SUPPORTED(oldversion));
assert(oldversion < version);
ret = zfs_iter_root(zpool_get_handle(zhp), check_unsupp_fs, &unsupp_fs);
if (ret != 0)
return (ret);
if (unsupp_fs) {
(void) fprintf(stderr, gettext("Upgrade not performed due "
"to %d unsupported filesystems (max v%d).\n"),
unsupp_fs, (int) ZPL_VERSION);
return (1);
}
ret = zpool_upgrade(zhp, version);
if (ret != 0)
return (ret);
if (version >= SPA_VERSION_FEATURES) {
(void) printf(gettext("Successfully upgraded "
"'%s' from version %llu to feature flags.\n"),
zpool_get_name(zhp), (u_longlong_t) oldversion);
} else {
(void) printf(gettext("Successfully upgraded "
"'%s' from version %llu to version %llu.\n"),
zpool_get_name(zhp), (u_longlong_t) oldversion,
(u_longlong_t) version);
}
return (0);
}
static int
upgrade_enable_all(zpool_handle_t *zhp, int *countp)
{
int i, ret, count;
boolean_t firstff = B_TRUE;
nvlist_t *enabled = zpool_get_features(zhp);
count = 0;
for (i = 0; i < SPA_FEATURES; i++) {
const char *fname = spa_feature_table[i].fi_uname;
const char *fguid = spa_feature_table[i].fi_guid;
if (!nvlist_exists(enabled, fguid)) {
char *propname;
verify(-1 != asprintf(&propname, "feature@%s", fname));
ret = zpool_set_prop(zhp, propname,
ZFS_FEATURE_ENABLED);
if (ret != 0) {
free(propname);
return (ret);
}
count++;
if (firstff) {
(void) printf(gettext("Enabled the "
"following features on '%s':\n"),
zpool_get_name(zhp));
firstff = B_FALSE;
}
(void) printf(gettext(" %s\n"), fname);
free(propname);
}
}
if (countp != NULL)
*countp = count;
return (0);
}
static int
upgrade_cb(zpool_handle_t *zhp, void *arg)
{
upgrade_cbdata_t *cbp = arg;
nvlist_t *config;
uint64_t version;
boolean_t printnl = B_FALSE;
int ret;
config = zpool_get_config(zhp, NULL);
verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION,
&version) == 0);
assert(SPA_VERSION_IS_SUPPORTED(version));
if (version < cbp->cb_version) {
cbp->cb_first = B_FALSE;
ret = upgrade_version(zhp, cbp->cb_version);
if (ret != 0)
return (ret);
printnl = B_TRUE;
/*
* If they did "zpool upgrade -a", then we could
* be doing ioctls to different pools. We need
* to log this history once to each pool, and bypass
* the normal history logging that happens in main().
*/
(void) zpool_log_history(g_zfs, history_str);
log_history = B_FALSE;
}
if (cbp->cb_version >= SPA_VERSION_FEATURES) {
int count;
ret = upgrade_enable_all(zhp, &count);
if (ret != 0)
return (ret);
if (count > 0) {
cbp->cb_first = B_FALSE;
printnl = B_TRUE;
}
}
if (printnl) {
(void) printf(gettext("\n"));
}
return (0);
}
static int
upgrade_list_older_cb(zpool_handle_t *zhp, void *arg)
{
upgrade_cbdata_t *cbp = arg;
nvlist_t *config;
uint64_t version;
config = zpool_get_config(zhp, NULL);
verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION,
&version) == 0);
assert(SPA_VERSION_IS_SUPPORTED(version));
if (version < SPA_VERSION_FEATURES) {
if (cbp->cb_first) {
(void) printf(gettext("The following pools are "
"formatted with legacy version numbers and can\n"
"be upgraded to use feature flags. After "
"being upgraded, these pools\nwill no "
"longer be accessible by software that does not "
"support feature\nflags.\n\n"));
(void) printf(gettext("VER POOL\n"));
(void) printf(gettext("--- ------------\n"));
cbp->cb_first = B_FALSE;
}
(void) printf("%2llu %s\n", (u_longlong_t)version,
zpool_get_name(zhp));
}
return (0);
}
static int
upgrade_list_disabled_cb(zpool_handle_t *zhp, void *arg)
{
upgrade_cbdata_t *cbp = arg;
nvlist_t *config;
uint64_t version;
config = zpool_get_config(zhp, NULL);
verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION,
&version) == 0);
if (version >= SPA_VERSION_FEATURES) {
int i;
boolean_t poolfirst = B_TRUE;
nvlist_t *enabled = zpool_get_features(zhp);
for (i = 0; i < SPA_FEATURES; i++) {
const char *fguid = spa_feature_table[i].fi_guid;
const char *fname = spa_feature_table[i].fi_uname;
if (!nvlist_exists(enabled, fguid)) {
if (cbp->cb_first) {
(void) printf(gettext("\nSome "
"supported features are not "
"enabled on the following pools. "
"Once a\nfeature is enabled the "
"pool may become incompatible with "
"software\nthat does not support "
"the feature. See "
"zpool-features(5) for "
"details.\n\n"));
(void) printf(gettext("POOL "
"FEATURE\n"));
(void) printf(gettext("------"
"---------\n"));
cbp->cb_first = B_FALSE;
}
if (poolfirst) {
(void) printf(gettext("%s\n"),
zpool_get_name(zhp));
poolfirst = B_FALSE;
}
(void) printf(gettext(" %s\n"), fname);
}
/*
* If they did "zpool upgrade -a", then we could
* be doing ioctls to different pools. We need
* to log this history once to each pool, and bypass
* the normal history logging that happens in main().
*/
(void) zpool_log_history(g_zfs, history_str);
log_history = B_FALSE;
}
}
return (0);
}
/* ARGSUSED */
static int
upgrade_one(zpool_handle_t *zhp, void *data)
{
boolean_t printnl = B_FALSE;
upgrade_cbdata_t *cbp = data;
uint64_t cur_version;
int ret;
if (strcmp("log", zpool_get_name(zhp)) == 0) {
(void) fprintf(stderr, gettext("'log' is now a reserved word\n"
"Pool 'log' must be renamed using export and import"
" to upgrade.\n"));
return (1);
}
cur_version = zpool_get_prop_int(zhp, ZPOOL_PROP_VERSION, NULL);
if (cur_version > cbp->cb_version) {
(void) printf(gettext("Pool '%s' is already formatted "
"using more current version '%llu'.\n\n"),
zpool_get_name(zhp), (u_longlong_t) cur_version);
return (0);
}
if (cbp->cb_version != SPA_VERSION && cur_version == cbp->cb_version) {
(void) printf(gettext("Pool '%s' is already formatted "
"using version %llu.\n\n"), zpool_get_name(zhp),
(u_longlong_t) cbp->cb_version);
return (0);
}
if (cur_version != cbp->cb_version) {
printnl = B_TRUE;
ret = upgrade_version(zhp, cbp->cb_version);
if (ret != 0)
return (ret);
}
if (cbp->cb_version >= SPA_VERSION_FEATURES) {
int count = 0;
ret = upgrade_enable_all(zhp, &count);
if (ret != 0)
return (ret);
if (count != 0) {
printnl = B_TRUE;
} else if (cur_version == SPA_VERSION) {
(void) printf(gettext("Pool '%s' already has all "
"supported features enabled.\n"),
zpool_get_name(zhp));
}
}
if (printnl) {
(void) printf(gettext("\n"));
}
return (0);
}
/*
* zpool upgrade
* zpool upgrade -v
* zpool upgrade [-V version] <-a | pool ...>
*
* With no arguments, display downrev'd ZFS pool available for upgrade.
* Individual pools can be upgraded by specifying the pool, and '-a' will
* upgrade all pools.
*/
int
zpool_do_upgrade(int argc, char **argv)
{
int c;
upgrade_cbdata_t cb = { 0 };
int ret = 0;
boolean_t showversions = B_FALSE;
boolean_t upgradeall = B_FALSE;
char *end;
/* check options */
while ((c = getopt(argc, argv, ":avV:")) != -1) {
switch (c) {
case 'a':
upgradeall = B_TRUE;
break;
case 'v':
showversions = B_TRUE;
break;
case 'V':
cb.cb_version = strtoll(optarg, &end, 10);
if (*end != '\0' ||
!SPA_VERSION_IS_SUPPORTED(cb.cb_version)) {
(void) fprintf(stderr,
gettext("invalid version '%s'\n"), optarg);
usage(B_FALSE);
}
break;
case ':':
(void) fprintf(stderr, gettext("missing argument for "
"'%c' option\n"), optopt);
usage(B_FALSE);
break;
case '?':
(void) fprintf(stderr, gettext("invalid option '%c'\n"),
optopt);
usage(B_FALSE);
}
}
cb.cb_argc = argc;
cb.cb_argv = argv;
argc -= optind;
argv += optind;
if (cb.cb_version == 0) {
cb.cb_version = SPA_VERSION;
} else if (!upgradeall && argc == 0) {
(void) fprintf(stderr, gettext("-V option is "
"incompatible with other arguments\n"));
usage(B_FALSE);
}
if (showversions) {
if (upgradeall || argc != 0) {
(void) fprintf(stderr, gettext("-v option is "
"incompatible with other arguments\n"));
usage(B_FALSE);
}
} else if (upgradeall) {
if (argc != 0) {
(void) fprintf(stderr, gettext("-a option should not "
"be used along with a pool name\n"));
usage(B_FALSE);
}
}
(void) printf(gettext("This system supports ZFS pool feature "
"flags.\n\n"));
if (showversions) {
int i;
(void) printf(gettext("The following features are "
"supported:\n\n"));
(void) printf(gettext("FEAT DESCRIPTION\n"));
(void) printf("----------------------------------------------"
"---------------\n");
for (i = 0; i < SPA_FEATURES; i++) {
zfeature_info_t *fi = &spa_feature_table[i];
const char *ro =
(fi->fi_flags & ZFEATURE_FLAG_READONLY_COMPAT) ?
" (read-only compatible)" : "";
(void) printf("%-37s%s\n", fi->fi_uname, ro);
(void) printf(" %s\n", fi->fi_desc);
}
(void) printf("\n");
(void) printf(gettext("The following legacy versions are also "
"supported:\n\n"));
(void) printf(gettext("VER DESCRIPTION\n"));
(void) printf("--- -----------------------------------------"
"---------------\n");
(void) printf(gettext(" 1 Initial ZFS version\n"));
(void) printf(gettext(" 2 Ditto blocks "
"(replicated metadata)\n"));
(void) printf(gettext(" 3 Hot spares and double parity "
"RAID-Z\n"));
(void) printf(gettext(" 4 zpool history\n"));
(void) printf(gettext(" 5 Compression using the gzip "
"algorithm\n"));
(void) printf(gettext(" 6 bootfs pool property\n"));
(void) printf(gettext(" 7 Separate intent log devices\n"));
(void) printf(gettext(" 8 Delegated administration\n"));
(void) printf(gettext(" 9 refquota and refreservation "
"properties\n"));
(void) printf(gettext(" 10 Cache devices\n"));
(void) printf(gettext(" 11 Improved scrub performance\n"));
(void) printf(gettext(" 12 Snapshot properties\n"));
(void) printf(gettext(" 13 snapused property\n"));
(void) printf(gettext(" 14 passthrough-x aclinherit\n"));
(void) printf(gettext(" 15 user/group space accounting\n"));
(void) printf(gettext(" 16 stmf property support\n"));
(void) printf(gettext(" 17 Triple-parity RAID-Z\n"));
(void) printf(gettext(" 18 Snapshot user holds\n"));
(void) printf(gettext(" 19 Log device removal\n"));
(void) printf(gettext(" 20 Compression using zle "
"(zero-length encoding)\n"));
(void) printf(gettext(" 21 Deduplication\n"));
(void) printf(gettext(" 22 Received properties\n"));
(void) printf(gettext(" 23 Slim ZIL\n"));
(void) printf(gettext(" 24 System attributes\n"));
(void) printf(gettext(" 25 Improved scrub stats\n"));
(void) printf(gettext(" 26 Improved snapshot deletion "
"performance\n"));
(void) printf(gettext(" 27 Improved snapshot creation "
"performance\n"));
(void) printf(gettext(" 28 Multiple vdev replacements\n"));
(void) printf(gettext("\nFor more information on a particular "
"version, including supported releases,\n"));
(void) printf(gettext("see the ZFS Administration Guide.\n\n"));
} else if (argc == 0 && upgradeall) {
cb.cb_first = B_TRUE;
ret = zpool_iter(g_zfs, upgrade_cb, &cb);
if (ret == 0 && cb.cb_first) {
if (cb.cb_version == SPA_VERSION) {
(void) printf(gettext("All pools are already "
"formatted using feature flags.\n\n"));
(void) printf(gettext("Every feature flags "
"pool already has all supported features "
"enabled.\n"));
} else {
(void) printf(gettext("All pools are already "
"formatted with version %llu or higher.\n"),
(u_longlong_t) cb.cb_version);
}
}
} else if (argc == 0) {
cb.cb_first = B_TRUE;
ret = zpool_iter(g_zfs, upgrade_list_older_cb, &cb);
assert(ret == 0);
if (cb.cb_first) {
(void) printf(gettext("All pools are formatted "
"using feature flags.\n\n"));
} else {
(void) printf(gettext("\nUse 'zpool upgrade -v' "
"for a list of available legacy versions.\n"));
}
cb.cb_first = B_TRUE;
ret = zpool_iter(g_zfs, upgrade_list_disabled_cb, &cb);
assert(ret == 0);
if (cb.cb_first) {
(void) printf(gettext("Every feature flags pool has "
"all supported features enabled.\n"));
} else {
(void) printf(gettext("\n"));
}
} else {
ret = for_each_pool(argc, argv, B_FALSE, NULL,
upgrade_one, &cb);
}
return (ret);
}
typedef struct hist_cbdata {
boolean_t first;
boolean_t longfmt;
boolean_t internal;
} hist_cbdata_t;
/*
* Print out the command history for a specific pool.
*/
static int
get_history_one(zpool_handle_t *zhp, void *data)
{
nvlist_t *nvhis;
nvlist_t **records;
uint_t numrecords;
int ret, i;
hist_cbdata_t *cb = (hist_cbdata_t *)data;
cb->first = B_FALSE;
(void) printf(gettext("History for '%s':\n"), zpool_get_name(zhp));
if ((ret = zpool_get_history(zhp, &nvhis)) != 0)
return (ret);
verify(nvlist_lookup_nvlist_array(nvhis, ZPOOL_HIST_RECORD,
&records, &numrecords) == 0);
for (i = 0; i < numrecords; i++) {
nvlist_t *rec = records[i];
char tbuf[30] = "";
if (nvlist_exists(rec, ZPOOL_HIST_TIME)) {
time_t tsec;
struct tm t;
tsec = fnvlist_lookup_uint64(records[i],
ZPOOL_HIST_TIME);
(void) localtime_r(&tsec, &t);
(void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t);
}
if (nvlist_exists(rec, ZPOOL_HIST_CMD)) {
(void) printf("%s %s", tbuf,
fnvlist_lookup_string(rec, ZPOOL_HIST_CMD));
} else if (nvlist_exists(rec, ZPOOL_HIST_INT_EVENT)) {
int ievent =
fnvlist_lookup_uint64(rec, ZPOOL_HIST_INT_EVENT);
if (!cb->internal)
continue;
if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS) {
(void) printf("%s unrecognized record:\n",
tbuf);
dump_nvlist(rec, 4);
continue;
}
(void) printf("%s [internal %s txg:%lld] %s", tbuf,
zfs_history_event_names[ievent],
(longlong_t) fnvlist_lookup_uint64(
rec, ZPOOL_HIST_TXG),
fnvlist_lookup_string(rec, ZPOOL_HIST_INT_STR));
} else if (nvlist_exists(rec, ZPOOL_HIST_INT_NAME)) {
if (!cb->internal)
continue;
(void) printf("%s [txg:%lld] %s", tbuf,
(longlong_t) fnvlist_lookup_uint64(
rec, ZPOOL_HIST_TXG),
fnvlist_lookup_string(rec, ZPOOL_HIST_INT_NAME));
if (nvlist_exists(rec, ZPOOL_HIST_DSNAME)) {
(void) printf(" %s (%llu)",
fnvlist_lookup_string(rec,
ZPOOL_HIST_DSNAME),
(u_longlong_t)fnvlist_lookup_uint64(rec,
ZPOOL_HIST_DSID));
}
(void) printf(" %s", fnvlist_lookup_string(rec,
ZPOOL_HIST_INT_STR));
} else if (nvlist_exists(rec, ZPOOL_HIST_IOCTL)) {
if (!cb->internal)
continue;
(void) printf("%s ioctl %s\n", tbuf,
fnvlist_lookup_string(rec, ZPOOL_HIST_IOCTL));
if (nvlist_exists(rec, ZPOOL_HIST_INPUT_NVL)) {
(void) printf(" input:\n");
dump_nvlist(fnvlist_lookup_nvlist(rec,
ZPOOL_HIST_INPUT_NVL), 8);
}
if (nvlist_exists(rec, ZPOOL_HIST_OUTPUT_NVL)) {
(void) printf(" output:\n");
dump_nvlist(fnvlist_lookup_nvlist(rec,
ZPOOL_HIST_OUTPUT_NVL), 8);
}
} else {
if (!cb->internal)
continue;
(void) printf("%s unrecognized record:\n", tbuf);
dump_nvlist(rec, 4);
}
if (!cb->longfmt) {
(void) printf("\n");
continue;
}
(void) printf(" [");
if (nvlist_exists(rec, ZPOOL_HIST_WHO)) {
uid_t who = fnvlist_lookup_uint64(rec, ZPOOL_HIST_WHO);
struct passwd *pwd = getpwuid(who);
(void) printf("user %d ", (int)who);
if (pwd != NULL)
(void) printf("(%s) ", pwd->pw_name);
}
if (nvlist_exists(rec, ZPOOL_HIST_HOST)) {
(void) printf("on %s",
fnvlist_lookup_string(rec, ZPOOL_HIST_HOST));
}
if (nvlist_exists(rec, ZPOOL_HIST_ZONE)) {
(void) printf(":%s",
fnvlist_lookup_string(rec, ZPOOL_HIST_ZONE));
}
(void) printf("]");
(void) printf("\n");
}
(void) printf("\n");
nvlist_free(nvhis);
return (ret);
}
/*
* zpool history <pool>
*
* Displays the history of commands that modified pools.
*/
int
zpool_do_history(int argc, char **argv)
{
hist_cbdata_t cbdata = { 0 };
int ret;
int c;
cbdata.first = B_TRUE;
/* check options */
while ((c = getopt(argc, argv, "li")) != -1) {
switch (c) {
case 'l':
cbdata.longfmt = B_TRUE;
break;
case 'i':
cbdata.internal = B_TRUE;
break;
case '?':
(void) fprintf(stderr, gettext("invalid option '%c'\n"),
optopt);
usage(B_FALSE);
}
}
argc -= optind;
argv += optind;
ret = for_each_pool(argc, argv, B_FALSE, NULL, get_history_one,
&cbdata);
if (argc == 0 && cbdata.first == B_TRUE) {
(void) fprintf(stderr, gettext("no pools available\n"));
return (0);
}
return (ret);
}
typedef struct ev_opts {
int verbose;
int scripted;
int follow;
int clear;
} ev_opts_t;
static void
zpool_do_events_short(nvlist_t *nvl)
{
char ctime_str[26], str[32], *ptr;
int64_t *tv;
uint_t n;
verify(nvlist_lookup_int64_array(nvl, FM_EREPORT_TIME, &tv, &n) == 0);
memset(str, ' ', 32);
(void) ctime_r((const time_t *)&tv[0], ctime_str);
(void) strncpy(str, ctime_str+4, 6); /* 'Jun 30' */
(void) strncpy(str+7, ctime_str+20, 4); /* '1993' */
(void) strncpy(str+12, ctime_str+11, 8); /* '21:49:08' */
(void) sprintf(str+20, ".%09lld", (longlong_t)tv[1]); /* '.123456789' */
(void) printf(gettext("%s "), str);
verify(nvlist_lookup_string(nvl, FM_CLASS, &ptr) == 0);
(void) printf(gettext("%s\n"), ptr);
}
static void
zpool_do_events_nvprint(nvlist_t *nvl, int depth)
{
nvpair_t *nvp;
for (nvp = nvlist_next_nvpair(nvl, NULL);
nvp != NULL; nvp = nvlist_next_nvpair(nvl, nvp)) {
data_type_t type = nvpair_type(nvp);
const char *name = nvpair_name(nvp);
boolean_t b;
uint8_t i8;
uint16_t i16;
uint32_t i32;
uint64_t i64;
char *str;
nvlist_t *cnv;
printf(gettext("%*s%s = "), depth, "", name);
switch (type) {
case DATA_TYPE_BOOLEAN:
printf(gettext("%s"), "1");
break;
case DATA_TYPE_BOOLEAN_VALUE:
(void) nvpair_value_boolean_value(nvp, &b);
printf(gettext("%s"), b ? "1" : "0");
break;
case DATA_TYPE_BYTE:
(void) nvpair_value_byte(nvp, &i8);
printf(gettext("0x%x"), i8);
break;
case DATA_TYPE_INT8:
(void) nvpair_value_int8(nvp, (void *)&i8);
printf(gettext("0x%x"), i8);
break;
case DATA_TYPE_UINT8:
(void) nvpair_value_uint8(nvp, &i8);
printf(gettext("0x%x"), i8);
break;
case DATA_TYPE_INT16:
(void) nvpair_value_int16(nvp, (void *)&i16);
printf(gettext("0x%x"), i16);
break;
case DATA_TYPE_UINT16:
(void) nvpair_value_uint16(nvp, &i16);
printf(gettext("0x%x"), i16);
break;
case DATA_TYPE_INT32:
(void) nvpair_value_int32(nvp, (void *)&i32);
printf(gettext("0x%x"), i32);
break;
case DATA_TYPE_UINT32:
(void) nvpair_value_uint32(nvp, &i32);
printf(gettext("0x%x"), i32);
break;
case DATA_TYPE_INT64:
(void) nvpair_value_int64(nvp, (void *)&i64);
printf(gettext("0x%llx"), (u_longlong_t)i64);
break;
case DATA_TYPE_UINT64:
(void) nvpair_value_uint64(nvp, &i64);
printf(gettext("0x%llx"), (u_longlong_t)i64);
break;
case DATA_TYPE_HRTIME:
(void) nvpair_value_hrtime(nvp, (void *)&i64);
printf(gettext("0x%llx"), (u_longlong_t)i64);
break;
case DATA_TYPE_STRING:
(void) nvpair_value_string(nvp, &str);
printf(gettext("\"%s\""), str ? str : "<NULL>");
break;
case DATA_TYPE_NVLIST:
printf(gettext("(embedded nvlist)\n"));
(void) nvpair_value_nvlist(nvp, &cnv);
zpool_do_events_nvprint(cnv, depth + 8);
printf(gettext("%*s(end %s)"), depth, "", name);
break;
case DATA_TYPE_NVLIST_ARRAY: {
nvlist_t **val;
uint_t i, nelem;
(void) nvpair_value_nvlist_array(nvp, &val, &nelem);
printf(gettext("(%d embedded nvlists)\n"), nelem);
for (i = 0; i < nelem; i++) {
printf(gettext("%*s%s[%d] = %s\n"),
depth, "", name, i, "(embedded nvlist)");
zpool_do_events_nvprint(val[i], depth + 8);
printf(gettext("%*s(end %s[%i])\n"),
depth, "", name, i);
}
printf(gettext("%*s(end %s)\n"), depth, "", name);
}
break;
case DATA_TYPE_INT8_ARRAY: {
int8_t *val;
uint_t i, nelem;
(void) nvpair_value_int8_array(nvp, &val, &nelem);
for (i = 0; i < nelem; i++)
printf(gettext("0x%x "), val[i]);
break;
}
case DATA_TYPE_UINT8_ARRAY: {
uint8_t *val;
uint_t i, nelem;
(void) nvpair_value_uint8_array(nvp, &val, &nelem);
for (i = 0; i < nelem; i++)
printf(gettext("0x%x "), val[i]);
break;
}
case DATA_TYPE_INT16_ARRAY: {
int16_t *val;
uint_t i, nelem;
(void) nvpair_value_int16_array(nvp, &val, &nelem);
for (i = 0; i < nelem; i++)
printf(gettext("0x%x "), val[i]);
break;
}
case DATA_TYPE_UINT16_ARRAY: {
uint16_t *val;
uint_t i, nelem;
(void) nvpair_value_uint16_array(nvp, &val, &nelem);
for (i = 0; i < nelem; i++)
printf(gettext("0x%x "), val[i]);
break;
}
case DATA_TYPE_INT32_ARRAY: {
int32_t *val;
uint_t i, nelem;
(void) nvpair_value_int32_array(nvp, &val, &nelem);
for (i = 0; i < nelem; i++)
printf(gettext("0x%x "), val[i]);
break;
}
case DATA_TYPE_UINT32_ARRAY: {
uint32_t *val;
uint_t i, nelem;
(void) nvpair_value_uint32_array(nvp, &val, &nelem);
for (i = 0; i < nelem; i++)
printf(gettext("0x%x "), val[i]);
break;
}
case DATA_TYPE_INT64_ARRAY: {
int64_t *val;
uint_t i, nelem;
(void) nvpair_value_int64_array(nvp, &val, &nelem);
for (i = 0; i < nelem; i++)
printf(gettext("0x%llx "),
(u_longlong_t)val[i]);
break;
}
case DATA_TYPE_UINT64_ARRAY: {
uint64_t *val;
uint_t i, nelem;
(void) nvpair_value_uint64_array(nvp, &val, &nelem);
for (i = 0; i < nelem; i++)
printf(gettext("0x%llx "),
(u_longlong_t)val[i]);
break;
}
case DATA_TYPE_STRING_ARRAY: {
char **str;
uint_t i, nelem;
(void) nvpair_value_string_array(nvp, &str, &nelem);
for (i = 0; i < nelem; i++)
printf(gettext("\"%s\" "),
str[i] ? str[i] : "<NULL>");
break;
}
case DATA_TYPE_BOOLEAN_ARRAY:
case DATA_TYPE_BYTE_ARRAY:
case DATA_TYPE_DOUBLE:
case DATA_TYPE_UNKNOWN:
printf(gettext("<unknown>"));
break;
}
printf(gettext("\n"));
}
}
static int
zpool_do_events_next(ev_opts_t *opts)
{
nvlist_t *nvl;
int zevent_fd, ret, dropped;
zevent_fd = open(ZFS_DEV, O_RDWR);
VERIFY(zevent_fd >= 0);
if (!opts->scripted)
(void) printf(gettext("%-30s %s\n"), "TIME", "CLASS");
while (1) {
ret = zpool_events_next(g_zfs, &nvl, &dropped,
(opts->follow ? ZEVENT_NONE : ZEVENT_NONBLOCK), zevent_fd);
if (ret || nvl == NULL)
break;
if (dropped > 0)
(void) printf(gettext("dropped %d events\n"), dropped);
zpool_do_events_short(nvl);
if (opts->verbose) {
zpool_do_events_nvprint(nvl, 8);
printf(gettext("\n"));
}
(void) fflush(stdout);
nvlist_free(nvl);
}
VERIFY(0 == close(zevent_fd));
return (ret);
}
static int
zpool_do_events_clear(ev_opts_t *opts)
{
int count, ret;
ret = zpool_events_clear(g_zfs, &count);
if (!ret)
(void) printf(gettext("cleared %d events\n"), count);
return (ret);
}
/*
* zpool events [-vfc]
*
* Displays events logs by ZFS.
*/
int
zpool_do_events(int argc, char **argv)
{
ev_opts_t opts = { 0 };
int ret;
int c;
/* check options */
while ((c = getopt(argc, argv, "vHfc")) != -1) {
switch (c) {
case 'v':
opts.verbose = 1;
break;
case 'H':
opts.scripted = 1;
break;
case 'f':
opts.follow = 1;
break;
case 'c':
opts.clear = 1;
break;
case '?':
(void) fprintf(stderr, gettext("invalid option '%c'\n"),
optopt);
usage(B_FALSE);
}
}
argc -= optind;
argv += optind;
if (opts.clear)
ret = zpool_do_events_clear(&opts);
else
ret = zpool_do_events_next(&opts);
return (ret);
}
static int
get_callback(zpool_handle_t *zhp, void *data)
{
zprop_get_cbdata_t *cbp = (zprop_get_cbdata_t *)data;
char value[MAXNAMELEN];
zprop_source_t srctype;
zprop_list_t *pl;
for (pl = cbp->cb_proplist; pl != NULL; pl = pl->pl_next) {
/*
* Skip the special fake placeholder. This will also skip
* over the name property when 'all' is specified.
*/
if (pl->pl_prop == ZPOOL_PROP_NAME &&
pl == cbp->cb_proplist)
continue;
if (pl->pl_prop == ZPROP_INVAL &&
(zpool_prop_feature(pl->pl_user_prop) ||
zpool_prop_unsupported(pl->pl_user_prop))) {
srctype = ZPROP_SRC_LOCAL;
if (zpool_prop_get_feature(zhp, pl->pl_user_prop,
value, sizeof (value)) == 0) {
zprop_print_one_property(zpool_get_name(zhp),
cbp, pl->pl_user_prop, value, srctype,
NULL, NULL);
}
} else {
if (zpool_get_prop_literal(zhp, pl->pl_prop, value,
sizeof (value), &srctype, cbp->cb_literal) != 0)
continue;
zprop_print_one_property(zpool_get_name(zhp), cbp,
zpool_prop_to_name(pl->pl_prop), value, srctype,
NULL, NULL);
}
}
return (0);
}
int
zpool_do_get(int argc, char **argv)
{
zprop_get_cbdata_t cb = { 0 };
zprop_list_t fake_name = { 0 };
int c, ret;
/* check options */
while ((c = getopt(argc, argv, "pH")) != -1) {
switch (c) {
case 'p':
cb.cb_literal = B_TRUE;
break;
case 'H':
cb.cb_scripted = B_TRUE;
break;
case '?':
(void) fprintf(stderr, gettext("invalid option '%c'\n"),
optopt);
usage(B_FALSE);
}
}
argc -= optind;
argv += optind;
if (argc < 1) {
(void) fprintf(stderr, gettext("missing property "
"argument\n"));
usage(B_FALSE);
}
cb.cb_first = B_TRUE;
cb.cb_sources = ZPROP_SRC_ALL;
cb.cb_columns[0] = GET_COL_NAME;
cb.cb_columns[1] = GET_COL_PROPERTY;
cb.cb_columns[2] = GET_COL_VALUE;
cb.cb_columns[3] = GET_COL_SOURCE;
cb.cb_type = ZFS_TYPE_POOL;
if (zprop_get_list(g_zfs, argv[0], &cb.cb_proplist, ZFS_TYPE_POOL) != 0)
usage(B_FALSE);
argc--;
argv++;
if (cb.cb_proplist != NULL) {
fake_name.pl_prop = ZPOOL_PROP_NAME;
fake_name.pl_width = strlen(gettext("NAME"));
fake_name.pl_next = cb.cb_proplist;
cb.cb_proplist = &fake_name;
}
ret = for_each_pool(argc, argv, B_TRUE, &cb.cb_proplist,
get_callback, &cb);
if (cb.cb_proplist == &fake_name)
zprop_free_list(fake_name.pl_next);
else
zprop_free_list(cb.cb_proplist);
return (ret);
}
typedef struct set_cbdata {
char *cb_propname;
char *cb_value;
boolean_t cb_any_successful;
} set_cbdata_t;
int
set_callback(zpool_handle_t *zhp, void *data)
{
int error;
set_cbdata_t *cb = (set_cbdata_t *)data;
error = zpool_set_prop(zhp, cb->cb_propname, cb->cb_value);
if (!error)
cb->cb_any_successful = B_TRUE;
return (error);
}
int
zpool_do_set(int argc, char **argv)
{
set_cbdata_t cb = { 0 };
int error;
if (argc > 1 && argv[1][0] == '-') {
(void) fprintf(stderr, gettext("invalid option '%c'\n"),
argv[1][1]);
usage(B_FALSE);
}
if (argc < 2) {
(void) fprintf(stderr, gettext("missing property=value "
"argument\n"));
usage(B_FALSE);
}
if (argc < 3) {
(void) fprintf(stderr, gettext("missing pool name\n"));
usage(B_FALSE);
}
if (argc > 3) {
(void) fprintf(stderr, gettext("too many pool names\n"));
usage(B_FALSE);
}
cb.cb_propname = argv[1];
cb.cb_value = strchr(cb.cb_propname, '=');
if (cb.cb_value == NULL) {
(void) fprintf(stderr, gettext("missing value in "
"property=value argument\n"));
usage(B_FALSE);
}
*(cb.cb_value) = '\0';
cb.cb_value++;
error = for_each_pool(argc - 2, argv + 2, B_TRUE, NULL,
set_callback, &cb);
return (error);
}
static int
find_command_idx(char *command, int *idx)
{
int i;
for (i = 0; i < NCOMMAND; i++) {
if (command_table[i].name == NULL)
continue;
if (strcmp(command, command_table[i].name) == 0) {
*idx = i;
return (0);
}
}
return (1);
}
int
main(int argc, char **argv)
{
int ret;
int i = 0;
char *cmdname;
(void) setlocale(LC_ALL, "");
(void) textdomain(TEXT_DOMAIN);
srand(time(NULL));
dprintf_setup(&argc, argv);
opterr = 0;
/*
* Make sure the user has specified some command.
*/
if (argc < 2) {
(void) fprintf(stderr, gettext("missing command\n"));
usage(B_FALSE);
}
cmdname = argv[1];
/*
* Special case '-?'
*/
if ((strcmp(cmdname, "-?") == 0) || strcmp(cmdname, "--help") == 0)
usage(B_TRUE);
if ((g_zfs = libzfs_init()) == NULL) {
(void) fprintf(stderr, "%s", libzfs_error_init(errno));
return (1);
}
libzfs_print_on_error(g_zfs, B_TRUE);
zfs_save_arguments(argc, argv, history_str, sizeof (history_str));
/*
* Run the appropriate command.
*/
if (find_command_idx(cmdname, &i) == 0) {
current_command = &command_table[i];
ret = command_table[i].func(argc - 1, argv + 1);
} else if (strchr(cmdname, '=')) {
verify(find_command_idx("set", &i) == 0);
current_command = &command_table[i];
ret = command_table[i].func(argc, argv);
} else if (strcmp(cmdname, "freeze") == 0 && argc == 3) {
/*
* 'freeze' is a vile debugging abomination, so we treat
* it as such.
*/
char buf[16384];
int fd = open(ZFS_DEV, O_RDWR);
(void) strcpy((void *)buf, argv[2]);
return (!!ioctl(fd, ZFS_IOC_POOL_FREEZE, buf));
} else {
(void) fprintf(stderr, gettext("unrecognized "
"command '%s'\n"), cmdname);
usage(B_FALSE);
ret = 1;
}
if (ret == 0 && log_history)
(void) zpool_log_history(g_zfs, history_str);
libzfs_fini(g_zfs);
/*
* The 'ZFS_ABORT' environment variable causes us to dump core on exit
* for the purposes of running ::findleaks.
*/
if (getenv("ZFS_ABORT") != NULL) {
(void) printf("dumping core by request\n");
abort();
}
return (ret);
}
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