#include <ctype.h>
#include <errno.h>
#include <devid.h>
#include <fcntl.h>
#include <libintl.h>
#include <stdio.h>
#include <stdlib.h>
#include <strings.h>
#include <unistd.h>
#include <libgen.h>
#include <sys/dkio.h>
#include <sys/efi_partition.h>
#include <sys/vtoc.h>
#include <sys/zfs_ioctl.h>
#include <sys/modctl.h>
#include <sys/mkdev.h>
#include <dlfcn.h>
#include <libzutil.h>
#include "zfs_namecheck.h"
#include "zfs_prop.h"
#include "libzfs_impl.h"
#include "zfs_comutil.h"
#include "zfeature_common.h"
static int read_efi_label(nvlist_t *, diskaddr_t *, boolean_t *);
static boolean_t zpool_vdev_is_interior(const char *name);
#define BACKUP_SLICE "s2"
typedef struct prop_flags {
int create:1;
int import:1;
} prop_flags_t;
static int
zpool_get_all_props(zpool_handle_t *zhp)
{
zfs_cmd_t zc = { 0 };
libzfs_handle_t *hdl = zhp->zpool_hdl;
(void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name));
if (zcmd_alloc_dst_nvlist(hdl, &zc, 0) != 0)
return (-1);
while (ioctl(hdl->libzfs_fd, ZFS_IOC_POOL_GET_PROPS, &zc) != 0) {
if (errno == ENOMEM) {
if (zcmd_expand_dst_nvlist(hdl, &zc) != 0) {
zcmd_free_nvlists(&zc);
return (-1);
}
} else {
zcmd_free_nvlists(&zc);
return (-1);
}
}
if (zcmd_read_dst_nvlist(hdl, &zc, &zhp->zpool_props) != 0) {
zcmd_free_nvlists(&zc);
return (-1);
}
zcmd_free_nvlists(&zc);
return (0);
}
static int
zpool_props_refresh(zpool_handle_t *zhp)
{
nvlist_t *old_props;
old_props = zhp->zpool_props;
if (zpool_get_all_props(zhp) != 0)
return (-1);
nvlist_free(old_props);
return (0);
}
static char *
zpool_get_prop_string(zpool_handle_t *zhp, zpool_prop_t prop,
zprop_source_t *src)
{
nvlist_t *nv, *nvl;
uint64_t ival;
char *value;
zprop_source_t source;
nvl = zhp->zpool_props;
if (nvlist_lookup_nvlist(nvl, zpool_prop_to_name(prop), &nv) == 0) {
verify(nvlist_lookup_uint64(nv, ZPROP_SOURCE, &ival) == 0);
source = ival;
verify(nvlist_lookup_string(nv, ZPROP_VALUE, &value) == 0);
} else {
source = ZPROP_SRC_DEFAULT;
if ((value = (char *)zpool_prop_default_string(prop)) == NULL)
value = "-";
}
if (src)
*src = source;
return (value);
}
uint64_t
zpool_get_prop_int(zpool_handle_t *zhp, zpool_prop_t prop, zprop_source_t *src)
{
nvlist_t *nv, *nvl;
uint64_t value;
zprop_source_t source;
if (zhp->zpool_props == NULL && zpool_get_all_props(zhp)) {
if ((prop == ZPOOL_PROP_GUID) &&
(nvlist_lookup_nvlist(zhp->zpool_config,
ZPOOL_CONFIG_VDEV_TREE, &nv) == 0) &&
(nvlist_lookup_uint64(nv, ZPOOL_CONFIG_GUID, &value)
== 0)) {
return (value);
}
return (zpool_prop_default_numeric(prop));
}
nvl = zhp->zpool_props;
if (nvlist_lookup_nvlist(nvl, zpool_prop_to_name(prop), &nv) == 0) {
verify(nvlist_lookup_uint64(nv, ZPROP_SOURCE, &value) == 0);
source = value;
verify(nvlist_lookup_uint64(nv, ZPROP_VALUE, &value) == 0);
} else {
source = ZPROP_SRC_DEFAULT;
value = zpool_prop_default_numeric(prop);
}
if (src)
*src = source;
return (value);
}
const char *
zpool_state_to_name(vdev_state_t state, vdev_aux_t aux)
{
switch (state) {
case VDEV_STATE_CLOSED:
case VDEV_STATE_OFFLINE:
return (gettext("OFFLINE"));
case VDEV_STATE_REMOVED:
return (gettext("REMOVED"));
case VDEV_STATE_CANT_OPEN:
if (aux == VDEV_AUX_CORRUPT_DATA || aux == VDEV_AUX_BAD_LOG)
return (gettext("FAULTED"));
else if (aux == VDEV_AUX_SPLIT_POOL)
return (gettext("SPLIT"));
else
return (gettext("UNAVAIL"));
case VDEV_STATE_FAULTED:
return (gettext("FAULTED"));
case VDEV_STATE_DEGRADED:
return (gettext("DEGRADED"));
case VDEV_STATE_HEALTHY:
return (gettext("ONLINE"));
default:
break;
}
return (gettext("UNKNOWN"));
}
const char *
zpool_pool_state_to_name(pool_state_t state)
{
switch (state) {
case POOL_STATE_ACTIVE:
return (gettext("ACTIVE"));
case POOL_STATE_EXPORTED:
return (gettext("EXPORTED"));
case POOL_STATE_DESTROYED:
return (gettext("DESTROYED"));
case POOL_STATE_SPARE:
return (gettext("SPARE"));
case POOL_STATE_L2CACHE:
return (gettext("L2CACHE"));
case POOL_STATE_UNINITIALIZED:
return (gettext("UNINITIALIZED"));
case POOL_STATE_UNAVAIL:
return (gettext("UNAVAIL"));
case POOL_STATE_POTENTIALLY_ACTIVE:
return (gettext("POTENTIALLY_ACTIVE"));
}
return (gettext("UNKNOWN"));
}
int
zpool_get_prop(zpool_handle_t *zhp, zpool_prop_t prop, char *buf, size_t len,
zprop_source_t *srctype, boolean_t literal)
{
uint64_t intval;
const char *strval;
zprop_source_t src = ZPROP_SRC_NONE;
nvlist_t *nvroot;
vdev_stat_t *vs;
uint_t vsc;
if (zpool_get_state(zhp) == POOL_STATE_UNAVAIL) {
switch (prop) {
case ZPOOL_PROP_NAME:
(void) strlcpy(buf, zpool_get_name(zhp), len);
break;
case ZPOOL_PROP_HEALTH:
(void) strlcpy(buf, "FAULTED", len);
break;
case ZPOOL_PROP_GUID:
intval = zpool_get_prop_int(zhp, prop, &src);
(void) snprintf(buf, len, "%llu", intval);
break;
case ZPOOL_PROP_ALTROOT:
case ZPOOL_PROP_CACHEFILE:
case ZPOOL_PROP_COMMENT:
if (zhp->zpool_props != NULL ||
zpool_get_all_props(zhp) == 0) {
(void) strlcpy(buf,
zpool_get_prop_string(zhp, prop, &src),
len);
break;
}
default:
(void) strlcpy(buf, "-", len);
break;
}
if (srctype != NULL)
*srctype = src;
return (0);
}
if (zhp->zpool_props == NULL && zpool_get_all_props(zhp) &&
prop != ZPOOL_PROP_NAME)
return (-1);
switch (zpool_prop_get_type(prop)) {
case PROP_TYPE_STRING:
(void) strlcpy(buf, zpool_get_prop_string(zhp, prop, &src),
len);
break;
case PROP_TYPE_NUMBER:
intval = zpool_get_prop_int(zhp, prop, &src);
switch (prop) {
case ZPOOL_PROP_SIZE:
case ZPOOL_PROP_ALLOCATED:
case ZPOOL_PROP_FREE:
case ZPOOL_PROP_FREEING:
case ZPOOL_PROP_LEAKED:
case ZPOOL_PROP_ASHIFT:
if (literal) {
(void) snprintf(buf, len, "%llu",
(u_longlong_t)intval);
} else {
(void) zfs_nicenum(intval, buf, len);
}
break;
case ZPOOL_PROP_BOOTSIZE:
case ZPOOL_PROP_EXPANDSZ:
case ZPOOL_PROP_CHECKPOINT:
if (intval == 0) {
(void) strlcpy(buf, "-", len);
} else if (literal) {
(void) snprintf(buf, len, "%llu",
(u_longlong_t)intval);
} else {
(void) zfs_nicebytes(intval, buf, len);
}
break;
case ZPOOL_PROP_CAPACITY:
if (literal) {
(void) snprintf(buf, len, "%llu",
(u_longlong_t)intval);
} else {
(void) snprintf(buf, len, "%llu%%",
(u_longlong_t)intval);
}
break;
case ZPOOL_PROP_FRAGMENTATION:
if (intval == UINT64_MAX) {
(void) strlcpy(buf, "-", len);
} else if (literal) {
(void) snprintf(buf, len, "%llu",
(u_longlong_t)intval);
} else {
(void) snprintf(buf, len, "%llu%%",
(u_longlong_t)intval);
}
break;
case ZPOOL_PROP_DEDUPRATIO:
if (literal)
(void) snprintf(buf, len, "%llu.%02llu",
(u_longlong_t)(intval / 100),
(u_longlong_t)(intval % 100));
else
(void) snprintf(buf, len, "%llu.%02llux",
(u_longlong_t)(intval / 100),
(u_longlong_t)(intval % 100));
break;
case ZPOOL_PROP_HEALTH:
verify(nvlist_lookup_nvlist(zpool_get_config(zhp, NULL),
ZPOOL_CONFIG_VDEV_TREE, &nvroot) == 0);
verify(nvlist_lookup_uint64_array(nvroot,
ZPOOL_CONFIG_VDEV_STATS, (uint64_t **)&vs, &vsc)
== 0);
(void) strlcpy(buf, zpool_state_to_name(intval,
vs->vs_aux), len);
break;
case ZPOOL_PROP_VERSION:
if (intval >= SPA_VERSION_FEATURES) {
(void) snprintf(buf, len, "-");
break;
}
default:
(void) snprintf(buf, len, "%llu", intval);
}
break;
case PROP_TYPE_INDEX:
intval = zpool_get_prop_int(zhp, prop, &src);
if (zpool_prop_index_to_string(prop, intval, &strval)
!= 0)
return (-1);
(void) strlcpy(buf, strval, len);
break;
default:
abort();
}
if (srctype)
*srctype = src;
return (0);
}
static boolean_t
bootfs_name_valid(const char *pool, const char *bootfs)
{
int len = strlen(pool);
if (bootfs[0] == '\0')
return (B_TRUE);
if (!zfs_name_valid(bootfs, ZFS_TYPE_FILESYSTEM|ZFS_TYPE_SNAPSHOT))
return (B_FALSE);
if (strncmp(pool, bootfs, len) == 0 &&
(bootfs[len] == '/' || bootfs[len] == '\0'))
return (B_TRUE);
return (B_FALSE);
}
boolean_t
zpool_is_bootable(zpool_handle_t *zhp)
{
char bootfs[ZFS_MAX_DATASET_NAME_LEN];
return (zpool_get_prop(zhp, ZPOOL_PROP_BOOTFS, bootfs,
sizeof (bootfs), NULL, B_FALSE) == 0 && strncmp(bootfs, "-",
sizeof (bootfs)) != 0);
}
static nvlist_t *
zpool_valid_proplist(libzfs_handle_t *hdl, const char *poolname,
nvlist_t *props, uint64_t version, prop_flags_t flags, char *errbuf)
{
nvpair_t *elem;
nvlist_t *retprops;
zpool_prop_t prop;
char *strval;
uint64_t intval;
char *slash, *check;
struct stat64 statbuf;
zpool_handle_t *zhp;
if (nvlist_alloc(&retprops, NV_UNIQUE_NAME, 0) != 0) {
(void) no_memory(hdl);
return (NULL);
}
elem = NULL;
while ((elem = nvlist_next_nvpair(props, elem)) != NULL) {
const char *propname = nvpair_name(elem);
prop = zpool_name_to_prop(propname);
if (prop == ZPOOL_PROP_INVAL && zpool_prop_feature(propname)) {
int err;
char *fname = strchr(propname, '@') + 1;
err = zfeature_lookup_name(fname, NULL);
if (err != 0) {
ASSERT3U(err, ==, ENOENT);
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"invalid feature '%s', '%s'"), fname,
propname);
(void) zfs_error(hdl, EZFS_BADPROP, errbuf);
goto error;
}
if (nvpair_type(elem) != DATA_TYPE_STRING) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"'%s' must be a string"), propname);
(void) zfs_error(hdl, EZFS_BADPROP, errbuf);
goto error;
}
(void) nvpair_value_string(elem, &strval);
if (strcmp(strval, ZFS_FEATURE_ENABLED) != 0 &&
strcmp(strval, ZFS_FEATURE_DISABLED) != 0) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"property '%s' can only be set to "
"'enabled' or 'disabled'"), propname);
(void) zfs_error(hdl, EZFS_BADPROP, errbuf);
goto error;
}
if (nvlist_add_uint64(retprops, propname, 0) != 0) {
(void) no_memory(hdl);
goto error;
}
continue;
}
if (prop == ZPOOL_PROP_INVAL) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"invalid property '%s'"), propname);
(void) zfs_error(hdl, EZFS_BADPROP, errbuf);
goto error;
}
if (zpool_prop_readonly(prop)) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "'%s' "
"is readonly"), propname);
(void) zfs_error(hdl, EZFS_PROPREADONLY, errbuf);
goto error;
}
if (zprop_parse_value(hdl, elem, prop, ZFS_TYPE_POOL, retprops,
&strval, &intval, errbuf) != 0)
goto error;
switch (prop) {
case ZPOOL_PROP_VERSION:
if (intval < version ||
!SPA_VERSION_IS_SUPPORTED(intval)) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"property '%s' number %d is invalid."),
propname, intval);
(void) zfs_error(hdl, EZFS_BADVERSION, errbuf);
goto error;
}
break;
case ZPOOL_PROP_BOOTSIZE:
if (!flags.create) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"property '%s' can only be set during pool "
"creation"), propname);
(void) zfs_error(hdl, EZFS_BADPROP, errbuf);
goto error;
}
break;
case ZPOOL_PROP_ASHIFT:
if (intval != 0 &&
(intval < ASHIFT_MIN || intval > ASHIFT_MAX)) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"invalid '%s=%d' property: only values "
"between %" PRId32 " and %" PRId32 " "
"are allowed.\n"),
propname, intval, ASHIFT_MIN, ASHIFT_MAX);
(void) zfs_error(hdl, EZFS_BADPROP, errbuf);
goto error;
}
break;
case ZPOOL_PROP_BOOTFS:
if (flags.create || flags.import) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"property '%s' cannot be set at creation "
"or import time"), propname);
(void) zfs_error(hdl, EZFS_BADPROP, errbuf);
goto error;
}
if (version < SPA_VERSION_BOOTFS) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"pool must be upgraded to support "
"'%s' property"), propname);
(void) zfs_error(hdl, EZFS_BADVERSION, errbuf);
goto error;
}
if (!bootfs_name_valid(poolname, strval)) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "'%s' "
"is an invalid name"), strval);
(void) zfs_error(hdl, EZFS_INVALIDNAME, errbuf);
goto error;
}
if ((zhp = zpool_open_canfail(hdl, poolname)) == NULL) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"could not open pool '%s'"), poolname);
(void) zfs_error(hdl, EZFS_OPENFAILED, errbuf);
goto error;
}
zpool_close(zhp);
break;
case ZPOOL_PROP_ALTROOT:
if (!flags.create && !flags.import) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"property '%s' can only be set during pool "
"creation or import"), propname);
(void) zfs_error(hdl, EZFS_BADPROP, errbuf);
goto error;
}
if (strval[0] != '/') {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"bad alternate root '%s'"), strval);
(void) zfs_error(hdl, EZFS_BADPATH, errbuf);
goto error;
}
break;
case ZPOOL_PROP_CACHEFILE:
if (strval[0] == '\0')
break;
if (strcmp(strval, "none") == 0)
break;
if (strval[0] != '/') {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"property '%s' must be empty, an "
"absolute path, or 'none'"), propname);
(void) zfs_error(hdl, EZFS_BADPATH, errbuf);
goto error;
}
slash = strrchr(strval, '/');
if (slash[1] == '\0' || strcmp(slash, "/.") == 0 ||
strcmp(slash, "/..") == 0) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"'%s' is not a valid file"), strval);
(void) zfs_error(hdl, EZFS_BADPATH, errbuf);
goto error;
}
*slash = '\0';
if (strval[0] != '\0' &&
(stat64(strval, &statbuf) != 0 ||
!S_ISDIR(statbuf.st_mode))) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"'%s' is not a valid directory"),
strval);
(void) zfs_error(hdl, EZFS_BADPATH, errbuf);
goto error;
}
*slash = '/';
break;
case ZPOOL_PROP_COMMENT:
for (check = strval; *check != '\0'; check++) {
if (!isprint(*check)) {
zfs_error_aux(hdl,
dgettext(TEXT_DOMAIN,
"comment may only have printable "
"characters"));
(void) zfs_error(hdl, EZFS_BADPROP,
errbuf);
goto error;
}
}
if (strlen(strval) > ZPROP_MAX_COMMENT) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"comment must not exceed %d characters"),
ZPROP_MAX_COMMENT);
(void) zfs_error(hdl, EZFS_BADPROP, errbuf);
goto error;
}
break;
case ZPOOL_PROP_READONLY:
if (!flags.import) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"property '%s' can only be set at "
"import time"), propname);
(void) zfs_error(hdl, EZFS_BADPROP, errbuf);
goto error;
}
break;
case ZPOOL_PROP_TNAME:
if (!flags.create) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"property '%s' can only be set at "
"creation time"), propname);
(void) zfs_error(hdl, EZFS_BADPROP, errbuf);
goto error;
}
break;
case ZPOOL_PROP_MULTIHOST:
if (get_system_hostid() == 0) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"requires a non-zero system hostid"));
(void) zfs_error(hdl, EZFS_BADPROP, errbuf);
goto error;
}
break;
default:
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"property '%s'(%d) not defined"), propname, prop);
break;
}
}
return (retprops);
error:
nvlist_free(retprops);
return (NULL);
}
int
zpool_set_prop(zpool_handle_t *zhp, const char *propname, const char *propval)
{
zfs_cmd_t zc = { 0 };
int ret = -1;
char errbuf[1024];
nvlist_t *nvl = NULL;
nvlist_t *realprops;
uint64_t version;
prop_flags_t flags = { 0 };
(void) snprintf(errbuf, sizeof (errbuf),
dgettext(TEXT_DOMAIN, "cannot set property for '%s'"),
zhp->zpool_name);
if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0)
return (no_memory(zhp->zpool_hdl));
if (nvlist_add_string(nvl, propname, propval) != 0) {
nvlist_free(nvl);
return (no_memory(zhp->zpool_hdl));
}
version = zpool_get_prop_int(zhp, ZPOOL_PROP_VERSION, NULL);
if ((realprops = zpool_valid_proplist(zhp->zpool_hdl,
zhp->zpool_name, nvl, version, flags, errbuf)) == NULL) {
nvlist_free(nvl);
return (-1);
}
nvlist_free(nvl);
nvl = realprops;
(void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name));
if (zcmd_write_src_nvlist(zhp->zpool_hdl, &zc, nvl) != 0) {
nvlist_free(nvl);
return (-1);
}
ret = zfs_ioctl(zhp->zpool_hdl, ZFS_IOC_POOL_SET_PROPS, &zc);
zcmd_free_nvlists(&zc);
nvlist_free(nvl);
if (ret)
(void) zpool_standard_error(zhp->zpool_hdl, errno, errbuf);
else
(void) zpool_props_refresh(zhp);
return (ret);
}
int
zpool_expand_proplist(zpool_handle_t *zhp, zprop_list_t **plp)
{
libzfs_handle_t *hdl = zhp->zpool_hdl;
zprop_list_t *entry;
char buf[ZFS_MAXPROPLEN];
nvlist_t *features = NULL;
zprop_list_t **last;
boolean_t firstexpand = (NULL == *plp);
if (zprop_expand_list(hdl, plp, ZFS_TYPE_POOL) != 0)
return (-1);
last = plp;
while (*last != NULL)
last = &(*last)->pl_next;
if ((*plp)->pl_all)
features = zpool_get_features(zhp);
if ((*plp)->pl_all && firstexpand) {
for (int i = 0; i < SPA_FEATURES; i++) {
zprop_list_t *entry = zfs_alloc(hdl,
sizeof (zprop_list_t));
entry->pl_prop = ZPROP_INVAL;
entry->pl_user_prop = zfs_asprintf(hdl, "feature@%s",
spa_feature_table[i].fi_uname);
entry->pl_width = strlen(entry->pl_user_prop);
entry->pl_all = B_TRUE;
*last = entry;
last = &entry->pl_next;
}
}
for (nvpair_t *nvp = nvlist_next_nvpair(features, NULL);
nvp != NULL; nvp = nvlist_next_nvpair(features, nvp)) {
char *propname;
boolean_t found;
zprop_list_t *entry;
if (zfeature_is_supported(nvpair_name(nvp)))
continue;
propname = zfs_asprintf(hdl, "unsupported@%s",
nvpair_name(nvp));
found = B_FALSE;
entry = *plp;
while (entry != NULL) {
if (entry->pl_user_prop != NULL &&
strcmp(propname, entry->pl_user_prop) == 0) {
found = B_TRUE;
break;
}
entry = entry->pl_next;
}
if (found) {
free(propname);
continue;
}
entry = zfs_alloc(hdl, sizeof (zprop_list_t));
entry->pl_prop = ZPROP_INVAL;
entry->pl_user_prop = propname;
entry->pl_width = strlen(entry->pl_user_prop);
entry->pl_all = B_TRUE;
*last = entry;
last = &entry->pl_next;
}
for (entry = *plp; entry != NULL; entry = entry->pl_next) {
if (entry->pl_fixed)
continue;
if (entry->pl_prop != ZPROP_INVAL &&
zpool_get_prop(zhp, entry->pl_prop, buf, sizeof (buf),
NULL, B_FALSE) == 0) {
if (strlen(buf) > entry->pl_width)
entry->pl_width = strlen(buf);
}
}
return (0);
}
int
zpool_prop_get_feature(zpool_handle_t *zhp, const char *propname, char *buf,
size_t len)
{
uint64_t refcount;
boolean_t found = B_FALSE;
nvlist_t *features = zpool_get_features(zhp);
boolean_t supported;
const char *feature = strchr(propname, '@') + 1;
supported = zpool_prop_feature(propname);
ASSERT(supported || zpool_prop_unsupported(propname));
if (supported) {
int ret;
spa_feature_t fid;
ret = zfeature_lookup_name(feature, &fid);
if (ret != 0) {
(void) strlcpy(buf, "-", len);
return (ENOTSUP);
}
feature = spa_feature_table[fid].fi_guid;
}
if (nvlist_lookup_uint64(features, feature, &refcount) == 0)
found = B_TRUE;
if (supported) {
if (!found) {
(void) strlcpy(buf, ZFS_FEATURE_DISABLED, len);
} else {
if (refcount == 0)
(void) strlcpy(buf, ZFS_FEATURE_ENABLED, len);
else
(void) strlcpy(buf, ZFS_FEATURE_ACTIVE, len);
}
} else {
if (found) {
if (refcount == 0) {
(void) strcpy(buf, ZFS_UNSUPPORTED_INACTIVE);
} else {
(void) strcpy(buf, ZFS_UNSUPPORTED_READONLY);
}
} else {
(void) strlcpy(buf, "-", len);
return (ENOTSUP);
}
}
return (0);
}
#define NEW_START_BLOCK 256
boolean_t
zpool_name_valid(libzfs_handle_t *hdl, boolean_t isopen, const char *pool)
{
namecheck_err_t why;
char what;
int ret;
ret = pool_namecheck(pool, &why, &what);
if (ret == 0 && !isopen &&
(strncmp(pool, "mirror", 6) == 0 ||
strncmp(pool, "raidz", 5) == 0 ||
strncmp(pool, "spare", 5) == 0 ||
strcmp(pool, "log") == 0)) {
if (hdl != NULL)
zfs_error_aux(hdl,
dgettext(TEXT_DOMAIN, "name is reserved"));
return (B_FALSE);
}
if (ret != 0) {
if (hdl != NULL) {
switch (why) {
case NAME_ERR_TOOLONG:
zfs_error_aux(hdl,
dgettext(TEXT_DOMAIN, "name is too long"));
break;
case NAME_ERR_INVALCHAR:
zfs_error_aux(hdl,
dgettext(TEXT_DOMAIN, "invalid character "
"'%c' in pool name"), what);
break;
case NAME_ERR_NOLETTER:
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"name must begin with a letter"));
break;
case NAME_ERR_RESERVED:
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"name is reserved"));
break;
case NAME_ERR_DISKLIKE:
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"pool name is reserved"));
break;
case NAME_ERR_LEADING_SLASH:
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"leading slash in name"));
break;
case NAME_ERR_EMPTY_COMPONENT:
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"empty component in name"));
break;
case NAME_ERR_TRAILING_SLASH:
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"trailing slash in name"));
break;
case NAME_ERR_MULTIPLE_DELIMITERS:
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"multiple '@' and/or '#' delimiters in "
"name"));
break;
default:
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"(%d) not defined"), why);
break;
}
}
return (B_FALSE);
}
return (B_TRUE);
}
zpool_handle_t *
zpool_open_canfail(libzfs_handle_t *hdl, const char *pool)
{
zpool_handle_t *zhp;
boolean_t missing;
if (!zpool_name_valid(hdl, B_TRUE, pool)) {
(void) zfs_error_fmt(hdl, EZFS_INVALIDNAME,
dgettext(TEXT_DOMAIN, "cannot open '%s'"),
pool);
return (NULL);
}
if ((zhp = zfs_alloc(hdl, sizeof (zpool_handle_t))) == NULL)
return (NULL);
zhp->zpool_hdl = hdl;
(void) strlcpy(zhp->zpool_name, pool, sizeof (zhp->zpool_name));
if (zpool_refresh_stats(zhp, &missing) != 0) {
zpool_close(zhp);
return (NULL);
}
if (missing) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "no such pool"));
(void) zfs_error_fmt(hdl, EZFS_NOENT,
dgettext(TEXT_DOMAIN, "cannot open '%s'"), pool);
zpool_close(zhp);
return (NULL);
}
return (zhp);
}
int
zpool_open_silent(libzfs_handle_t *hdl, const char *pool, zpool_handle_t **ret)
{
zpool_handle_t *zhp;
boolean_t missing;
if ((zhp = zfs_alloc(hdl, sizeof (zpool_handle_t))) == NULL)
return (-1);
zhp->zpool_hdl = hdl;
(void) strlcpy(zhp->zpool_name, pool, sizeof (zhp->zpool_name));
if (zpool_refresh_stats(zhp, &missing) != 0) {
zpool_close(zhp);
return (-1);
}
if (missing) {
zpool_close(zhp);
*ret = NULL;
return (0);
}
*ret = zhp;
return (0);
}
zpool_handle_t *
zpool_open(libzfs_handle_t *hdl, const char *pool)
{
zpool_handle_t *zhp;
if ((zhp = zpool_open_canfail(hdl, pool)) == NULL)
return (NULL);
if (zhp->zpool_state == POOL_STATE_UNAVAIL) {
(void) zfs_error_fmt(hdl, EZFS_POOLUNAVAIL,
dgettext(TEXT_DOMAIN, "cannot open '%s'"), zhp->zpool_name);
zpool_close(zhp);
return (NULL);
}
return (zhp);
}
void
zpool_close(zpool_handle_t *zhp)
{
nvlist_free(zhp->zpool_config);
nvlist_free(zhp->zpool_old_config);
nvlist_free(zhp->zpool_props);
free(zhp);
}
const char *
zpool_get_name(zpool_handle_t *zhp)
{
return (zhp->zpool_name);
}
int
zpool_get_state(zpool_handle_t *zhp)
{
return (zhp->zpool_state);
}
static boolean_t
zpool_has_special_vdev(nvlist_t *nvroot)
{
nvlist_t **child;
uint_t children;
if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_CHILDREN, &child,
&children) == 0) {
for (uint_t c = 0; c < children; c++) {
char *bias;
if (nvlist_lookup_string(child[c],
ZPOOL_CONFIG_ALLOCATION_BIAS, &bias) == 0 &&
strcmp(bias, VDEV_ALLOC_BIAS_SPECIAL) == 0) {
return (B_TRUE);
}
}
}
return (B_FALSE);
}
int
zpool_create(libzfs_handle_t *hdl, const char *pool, nvlist_t *nvroot,
nvlist_t *props, nvlist_t *fsprops)
{
zfs_cmd_t zc = { 0 };
nvlist_t *zc_fsprops = NULL;
nvlist_t *zc_props = NULL;
nvlist_t *hidden_args = NULL;
uint8_t *wkeydata = NULL;
uint_t wkeylen = 0;
char msg[1024];
int ret = -1;
(void) snprintf(msg, sizeof (msg), dgettext(TEXT_DOMAIN,
"cannot create '%s'"), pool);
if (!zpool_name_valid(hdl, B_FALSE, pool))
return (zfs_error(hdl, EZFS_INVALIDNAME, msg));
if (zcmd_write_conf_nvlist(hdl, &zc, nvroot) != 0)
return (-1);
if (props) {
prop_flags_t flags = { .create = B_TRUE, .import = B_FALSE };
if ((zc_props = zpool_valid_proplist(hdl, pool, props,
SPA_VERSION_1, flags, msg)) == NULL) {
goto create_failed;
}
}
if (fsprops) {
uint64_t zoned;
char *zonestr;
zoned = ((nvlist_lookup_string(fsprops,
zfs_prop_to_name(ZFS_PROP_ZONED), &zonestr) == 0) &&
strcmp(zonestr, "on") == 0);
if ((zc_fsprops = zfs_valid_proplist(hdl, ZFS_TYPE_FILESYSTEM,
fsprops, zoned, NULL, NULL, B_TRUE, msg)) == NULL) {
goto create_failed;
}
if (nvlist_exists(zc_fsprops,
zfs_prop_to_name(ZFS_PROP_SPECIAL_SMALL_BLOCKS)) &&
!zpool_has_special_vdev(nvroot)) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"%s property requires a special vdev"),
zfs_prop_to_name(ZFS_PROP_SPECIAL_SMALL_BLOCKS));
(void) zfs_error(hdl, EZFS_BADPROP, msg);
goto create_failed;
}
if (!zc_props &&
(nvlist_alloc(&zc_props, NV_UNIQUE_NAME, 0) != 0)) {
goto create_failed;
}
if (zfs_crypto_create(hdl, NULL, zc_fsprops, props, B_TRUE,
&wkeydata, &wkeylen) != 0) {
(void) zfs_error(hdl, EZFS_CRYPTOFAILED, msg);
goto create_failed;
}
if (nvlist_add_nvlist(zc_props,
ZPOOL_ROOTFS_PROPS, zc_fsprops) != 0) {
goto create_failed;
}
if (wkeydata != NULL) {
if (nvlist_alloc(&hidden_args, NV_UNIQUE_NAME, 0) != 0)
goto create_failed;
if (nvlist_add_uint8_array(hidden_args, "wkeydata",
wkeydata, wkeylen) != 0)
goto create_failed;
if (nvlist_add_nvlist(zc_props, ZPOOL_HIDDEN_ARGS,
hidden_args) != 0)
goto create_failed;
}
}
if (zc_props && zcmd_write_src_nvlist(hdl, &zc, zc_props) != 0)
goto create_failed;
(void) strlcpy(zc.zc_name, pool, sizeof (zc.zc_name));
if ((ret = zfs_ioctl(hdl, ZFS_IOC_POOL_CREATE, &zc)) != 0) {
zcmd_free_nvlists(&zc);
nvlist_free(zc_props);
nvlist_free(zc_fsprops);
nvlist_free(hidden_args);
if (wkeydata != NULL)
free(wkeydata);
switch (errno) {
case EBUSY:
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"one or more vdevs refer to the same device"));
return (zfs_error(hdl, EZFS_BADDEV, msg));
case EDOM:
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"one or more vdevs require an invalid ashift"));
return (zfs_error(hdl, EZFS_BADDEV, msg));
case ERANGE:
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"record size invalid"));
return (zfs_error(hdl, EZFS_BADPROP, msg));
case EOVERFLOW:
{
char buf[64];
zfs_nicebytes(SPA_MINDEVSIZE, buf,
sizeof (buf));
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"one or more devices is less than the "
"minimum size (%s)"), buf);
}
return (zfs_error(hdl, EZFS_BADDEV, msg));
case ENOSPC:
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"one or more devices is out of space"));
return (zfs_error(hdl, EZFS_BADDEV, msg));
default:
return (zpool_standard_error(hdl, errno, msg));
}
}
create_failed:
zcmd_free_nvlists(&zc);
nvlist_free(zc_props);
nvlist_free(zc_fsprops);
nvlist_free(hidden_args);
if (wkeydata != NULL)
free(wkeydata);
return (ret);
}
int
zpool_destroy(zpool_handle_t *zhp, const char *log_str)
{
zfs_cmd_t zc = { 0 };
zfs_handle_t *zfp = NULL;
libzfs_handle_t *hdl = zhp->zpool_hdl;
char msg[1024];
if (zhp->zpool_state == POOL_STATE_ACTIVE &&
(zfp = zfs_open(hdl, zhp->zpool_name, ZFS_TYPE_FILESYSTEM)) == NULL)
return (-1);
(void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name));
zc.zc_history = (uint64_t)(uintptr_t)log_str;
if (zfs_ioctl(hdl, ZFS_IOC_POOL_DESTROY, &zc) != 0) {
(void) snprintf(msg, sizeof (msg), dgettext(TEXT_DOMAIN,
"cannot destroy '%s'"), zhp->zpool_name);
if (errno == EROFS) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"one or more devices is read only"));
(void) zfs_error(hdl, EZFS_BADDEV, msg);
} else {
(void) zpool_standard_error(hdl, errno, msg);
}
if (zfp)
zfs_close(zfp);
return (-1);
}
if (zfp) {
remove_mountpoint(zfp);
zfs_close(zfp);
}
return (0);
}
int
zpool_checkpoint(zpool_handle_t *zhp)
{
libzfs_handle_t *hdl = zhp->zpool_hdl;
char msg[1024];
int error;
error = lzc_pool_checkpoint(zhp->zpool_name);
if (error != 0) {
(void) snprintf(msg, sizeof (msg), dgettext(TEXT_DOMAIN,
"cannot checkpoint '%s'"), zhp->zpool_name);
(void) zpool_standard_error(hdl, error, msg);
return (-1);
}
return (0);
}
int
zpool_discard_checkpoint(zpool_handle_t *zhp)
{
libzfs_handle_t *hdl = zhp->zpool_hdl;
char msg[1024];
int error;
error = lzc_pool_checkpoint_discard(zhp->zpool_name);
if (error != 0) {
(void) snprintf(msg, sizeof (msg), dgettext(TEXT_DOMAIN,
"cannot discard checkpoint in '%s'"), zhp->zpool_name);
(void) zpool_standard_error(hdl, error, msg);
return (-1);
}
return (0);
}
int
zpool_add(zpool_handle_t *zhp, nvlist_t *nvroot)
{
zfs_cmd_t zc = { 0 };
int ret;
libzfs_handle_t *hdl = zhp->zpool_hdl;
char msg[1024];
nvlist_t **spares, **l2cache;
uint_t nspares, nl2cache;
(void) snprintf(msg, sizeof (msg), dgettext(TEXT_DOMAIN,
"cannot add to '%s'"), zhp->zpool_name);
if (zpool_get_prop_int(zhp, ZPOOL_PROP_VERSION, NULL) <
SPA_VERSION_SPARES &&
nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES,
&spares, &nspares) == 0) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "pool must be "
"upgraded to add hot spares"));
return (zfs_error(hdl, EZFS_BADVERSION, msg));
}
if (zpool_get_prop_int(zhp, ZPOOL_PROP_VERSION, NULL) <
SPA_VERSION_L2CACHE &&
nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_L2CACHE,
&l2cache, &nl2cache) == 0) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "pool must be "
"upgraded to add cache devices"));
return (zfs_error(hdl, EZFS_BADVERSION, msg));
}
if (zcmd_write_conf_nvlist(hdl, &zc, nvroot) != 0)
return (-1);
(void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name));
if (zfs_ioctl(hdl, ZFS_IOC_VDEV_ADD, &zc) != 0) {
switch (errno) {
case EBUSY:
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"one or more vdevs refer to the same device"));
(void) zfs_error(hdl, EZFS_BADDEV, msg);
break;
case EINVAL:
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"invalid config; a pool with removing/removed "
"vdevs does not support adding raidz vdevs"));
(void) zfs_error(hdl, EZFS_BADDEV, msg);
break;
case EOVERFLOW:
{
char buf[64];
zfs_nicebytes(SPA_MINDEVSIZE, buf,
sizeof (buf));
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"device is less than the minimum "
"size (%s)"), buf);
}
(void) zfs_error(hdl, EZFS_BADDEV, msg);
break;
case ENOTSUP:
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"pool must be upgraded to add these vdevs"));
(void) zfs_error(hdl, EZFS_BADVERSION, msg);
break;
default:
(void) zpool_standard_error(hdl, errno, msg);
}
ret = -1;
} else {
ret = 0;
}
zcmd_free_nvlists(&zc);
return (ret);
}
static int
zpool_export_common(zpool_handle_t *zhp, boolean_t force, boolean_t hardforce,
const char *log_str)
{
zfs_cmd_t zc = { 0 };
char msg[1024];
(void) snprintf(msg, sizeof (msg), dgettext(TEXT_DOMAIN,
"cannot export '%s'"), zhp->zpool_name);
(void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name));
zc.zc_cookie = force;
zc.zc_guid = hardforce;
zc.zc_history = (uint64_t)(uintptr_t)log_str;
if (zfs_ioctl(zhp->zpool_hdl, ZFS_IOC_POOL_EXPORT, &zc) != 0) {
switch (errno) {
case EXDEV:
zfs_error_aux(zhp->zpool_hdl, dgettext(TEXT_DOMAIN,
"use '-f' to override the following errors:\n"
"'%s' has an active shared spare which could be"
" used by other pools once '%s' is exported."),
zhp->zpool_name, zhp->zpool_name);
return (zfs_error(zhp->zpool_hdl, EZFS_ACTIVE_SPARE,
msg));
default:
return (zpool_standard_error_fmt(zhp->zpool_hdl, errno,
msg));
}
}
return (0);
}
int
zpool_export(zpool_handle_t *zhp, boolean_t force, const char *log_str)
{
return (zpool_export_common(zhp, force, B_FALSE, log_str));
}
int
zpool_export_force(zpool_handle_t *zhp, const char *log_str)
{
return (zpool_export_common(zhp, B_TRUE, B_TRUE, log_str));
}
static void
zpool_rewind_exclaim(libzfs_handle_t *hdl, const char *name, boolean_t dryrun,
nvlist_t *config)
{
nvlist_t *nv = NULL;
uint64_t rewindto;
int64_t loss = -1;
struct tm t;
char timestr[128];
if (!hdl->libzfs_printerr || config == NULL)
return;
if (nvlist_lookup_nvlist(config, ZPOOL_CONFIG_LOAD_INFO, &nv) != 0 ||
nvlist_lookup_nvlist(nv, ZPOOL_CONFIG_REWIND_INFO, &nv) != 0) {
return;
}
if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_LOAD_TIME, &rewindto) != 0)
return;
(void) nvlist_lookup_int64(nv, ZPOOL_CONFIG_REWIND_TIME, &loss);
if (localtime_r((time_t *)&rewindto, &t) != NULL &&
strftime(timestr, 128, 0, &t) != 0) {
if (dryrun) {
(void) printf(dgettext(TEXT_DOMAIN,
"Would be able to return %s "
"to its state as of %s.\n"),
name, timestr);
} else {
(void) printf(dgettext(TEXT_DOMAIN,
"Pool %s returned to its state as of %s.\n"),
name, timestr);
}
if (loss > 120) {
(void) printf(dgettext(TEXT_DOMAIN,
"%s approximately %lld "),
dryrun ? "Would discard" : "Discarded",
(loss + 30) / 60);
(void) printf(dgettext(TEXT_DOMAIN,
"minutes of transactions.\n"));
} else if (loss > 0) {
(void) printf(dgettext(TEXT_DOMAIN,
"%s approximately %lld "),
dryrun ? "Would discard" : "Discarded", loss);
(void) printf(dgettext(TEXT_DOMAIN,
"seconds of transactions.\n"));
}
}
}
void
zpool_explain_recover(libzfs_handle_t *hdl, const char *name, int reason,
nvlist_t *config)
{
nvlist_t *nv = NULL;
int64_t loss = -1;
uint64_t edata = UINT64_MAX;
uint64_t rewindto;
struct tm t;
char timestr[128];
if (!hdl->libzfs_printerr)
return;
if (reason >= 0)
(void) printf(dgettext(TEXT_DOMAIN, "action: "));
else
(void) printf(dgettext(TEXT_DOMAIN, "\t"));
if (nvlist_lookup_nvlist(config, ZPOOL_CONFIG_LOAD_INFO, &nv) != 0 ||
nvlist_lookup_nvlist(nv, ZPOOL_CONFIG_REWIND_INFO, &nv) != 0 ||
nvlist_lookup_uint64(nv, ZPOOL_CONFIG_LOAD_TIME, &rewindto) != 0)
goto no_info;
(void) nvlist_lookup_int64(nv, ZPOOL_CONFIG_REWIND_TIME, &loss);
(void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_LOAD_DATA_ERRORS,
&edata);
(void) printf(dgettext(TEXT_DOMAIN,
"Recovery is possible, but will result in some data loss.\n"));
if (localtime_r((time_t *)&rewindto, &t) != NULL &&
strftime(timestr, 128, 0, &t) != 0) {
(void) printf(dgettext(TEXT_DOMAIN,
"\tReturning the pool to its state as of %s\n"
"\tshould correct the problem. "),
timestr);
} else {
(void) printf(dgettext(TEXT_DOMAIN,
"\tReverting the pool to an earlier state "
"should correct the problem.\n\t"));
}
if (loss > 120) {
(void) printf(dgettext(TEXT_DOMAIN,
"Approximately %lld minutes of data\n"
"\tmust be discarded, irreversibly. "), (loss + 30) / 60);
} else if (loss > 0) {
(void) printf(dgettext(TEXT_DOMAIN,
"Approximately %lld seconds of data\n"
"\tmust be discarded, irreversibly. "), loss);
}
if (edata != 0 && edata != UINT64_MAX) {
if (edata == 1) {
(void) printf(dgettext(TEXT_DOMAIN,
"After rewind, at least\n"
"\tone persistent user-data error will remain. "));
} else {
(void) printf(dgettext(TEXT_DOMAIN,
"After rewind, several\n"
"\tpersistent user-data errors will remain. "));
}
}
(void) printf(dgettext(TEXT_DOMAIN,
"Recovery can be attempted\n\tby executing 'zpool %s -F %s'. "),
reason >= 0 ? "clear" : "import", name);
(void) printf(dgettext(TEXT_DOMAIN,
"A scrub of the pool\n"
"\tis strongly recommended after recovery.\n"));
return;
no_info:
(void) printf(dgettext(TEXT_DOMAIN,
"Destroy and re-create the pool from\n\ta backup source.\n"));
}
int
zpool_import(libzfs_handle_t *hdl, nvlist_t *config, const char *newname,
char *altroot)
{
nvlist_t *props = NULL;
int ret;
if (altroot != NULL) {
if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) {
return (zfs_error_fmt(hdl, EZFS_NOMEM,
dgettext(TEXT_DOMAIN, "cannot import '%s'"),
newname));
}
if (nvlist_add_string(props,
zpool_prop_to_name(ZPOOL_PROP_ALTROOT), altroot) != 0 ||
nvlist_add_string(props,
zpool_prop_to_name(ZPOOL_PROP_CACHEFILE), "none") != 0) {
nvlist_free(props);
return (zfs_error_fmt(hdl, EZFS_NOMEM,
dgettext(TEXT_DOMAIN, "cannot import '%s'"),
newname));
}
}
ret = zpool_import_props(hdl, config, newname, props,
ZFS_IMPORT_NORMAL);
nvlist_free(props);
return (ret);
}
static void
print_vdev_tree(libzfs_handle_t *hdl, const char *name, nvlist_t *nv,
int indent)
{
nvlist_t **child;
uint_t c, children;
char *vname;
uint64_t is_log = 0;
(void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_IS_LOG,
&is_log);
if (name != NULL)
(void) printf("\t%*s%s%s\n", indent, "", name,
is_log ? " [log]" : "");
if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
&child, &children) != 0)
return;
for (c = 0; c < children; c++) {
vname = zpool_vdev_name(hdl, NULL, child[c], VDEV_NAME_TYPE_ID);
print_vdev_tree(hdl, vname, child[c], indent + 2);
free(vname);
}
}
void
zpool_print_unsup_feat(nvlist_t *config)
{
nvlist_t *nvinfo, *unsup_feat;
verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_LOAD_INFO, &nvinfo) ==
0);
verify(nvlist_lookup_nvlist(nvinfo, ZPOOL_CONFIG_UNSUP_FEAT,
&unsup_feat) == 0);
for (nvpair_t *nvp = nvlist_next_nvpair(unsup_feat, NULL); nvp != NULL;
nvp = nvlist_next_nvpair(unsup_feat, nvp)) {
char *desc;
verify(nvpair_type(nvp) == DATA_TYPE_STRING);
verify(nvpair_value_string(nvp, &desc) == 0);
if (strlen(desc) > 0)
(void) printf("\t%s (%s)\n", nvpair_name(nvp), desc);
else
(void) printf("\t%s\n", nvpair_name(nvp));
}
}
int
zpool_import_props(libzfs_handle_t *hdl, nvlist_t *config, const char *newname,
nvlist_t *props, int flags)
{
zfs_cmd_t zc = { 0 };
zpool_load_policy_t policy;
nvlist_t *nv = NULL;
nvlist_t *nvinfo = NULL;
nvlist_t *missing = NULL;
char *thename;
char *origname;
int ret;
int error = 0;
char errbuf[1024];
verify(nvlist_lookup_string(config, ZPOOL_CONFIG_POOL_NAME,
&origname) == 0);
(void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN,
"cannot import pool '%s'"), origname);
if (newname != NULL) {
if (!zpool_name_valid(hdl, B_FALSE, newname))
return (zfs_error_fmt(hdl, EZFS_INVALIDNAME,
dgettext(TEXT_DOMAIN, "cannot import '%s'"),
newname));
thename = (char *)newname;
} else {
thename = origname;
}
if (props != NULL) {
uint64_t version;
prop_flags_t flags = { .create = B_FALSE, .import = B_TRUE };
verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION,
&version) == 0);
if ((props = zpool_valid_proplist(hdl, origname,
props, version, flags, errbuf)) == NULL)
return (-1);
if (zcmd_write_src_nvlist(hdl, &zc, props) != 0) {
nvlist_free(props);
return (-1);
}
nvlist_free(props);
}
(void) strlcpy(zc.zc_name, thename, sizeof (zc.zc_name));
verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID,
&zc.zc_guid) == 0);
if (zcmd_write_conf_nvlist(hdl, &zc, config) != 0) {
zcmd_free_nvlists(&zc);
return (-1);
}
if (zcmd_alloc_dst_nvlist(hdl, &zc, zc.zc_nvlist_conf_size * 2) != 0) {
zcmd_free_nvlists(&zc);
return (-1);
}
zc.zc_cookie = flags;
while ((ret = zfs_ioctl(hdl, ZFS_IOC_POOL_IMPORT, &zc)) != 0 &&
errno == ENOMEM) {
if (zcmd_expand_dst_nvlist(hdl, &zc) != 0) {
zcmd_free_nvlists(&zc);
return (-1);
}
}
if (ret != 0)
error = errno;
(void) zcmd_read_dst_nvlist(hdl, &zc, &nv);
zcmd_free_nvlists(&zc);
zpool_get_load_policy(config, &policy);
if (error) {
char desc[1024];
char aux[256];
if (policy.zlp_rewind & ZPOOL_TRY_REWIND) {
zpool_rewind_exclaim(hdl, newname ? origname : thename,
B_TRUE, nv);
nvlist_free(nv);
return (-1);
}
if (newname == NULL)
(void) snprintf(desc, sizeof (desc),
dgettext(TEXT_DOMAIN, "cannot import '%s'"),
thename);
else
(void) snprintf(desc, sizeof (desc),
dgettext(TEXT_DOMAIN, "cannot import '%s' as '%s'"),
origname, thename);
switch (error) {
case ENOTSUP:
if (nv != NULL && nvlist_lookup_nvlist(nv,
ZPOOL_CONFIG_LOAD_INFO, &nvinfo) == 0 &&
nvlist_exists(nvinfo, ZPOOL_CONFIG_UNSUP_FEAT)) {
(void) printf(dgettext(TEXT_DOMAIN, "This "
"pool uses the following feature(s) not "
"supported by this system:\n"));
zpool_print_unsup_feat(nv);
if (nvlist_exists(nvinfo,
ZPOOL_CONFIG_CAN_RDONLY)) {
(void) printf(dgettext(TEXT_DOMAIN,
"All unsupported features are only "
"required for writing to the pool."
"\nThe pool can be imported using "
"'-o readonly=on'.\n"));
}
}
(void) zfs_error(hdl, EZFS_BADVERSION, desc);
break;
case EREMOTEIO:
if (nv != NULL && nvlist_lookup_nvlist(nv,
ZPOOL_CONFIG_LOAD_INFO, &nvinfo) == 0) {
char *hostname = "<unknown>";
uint64_t hostid = 0;
mmp_state_t mmp_state;
mmp_state = fnvlist_lookup_uint64(nvinfo,
ZPOOL_CONFIG_MMP_STATE);
if (nvlist_exists(nvinfo,
ZPOOL_CONFIG_MMP_HOSTNAME))
hostname = fnvlist_lookup_string(nvinfo,
ZPOOL_CONFIG_MMP_HOSTNAME);
if (nvlist_exists(nvinfo,
ZPOOL_CONFIG_MMP_HOSTID))
hostid = fnvlist_lookup_uint64(nvinfo,
ZPOOL_CONFIG_MMP_HOSTID);
if (mmp_state == MMP_STATE_ACTIVE) {
(void) snprintf(aux, sizeof (aux),
dgettext(TEXT_DOMAIN, "pool is imp"
"orted on host '%s' (hostid=%lx).\n"
"Export the pool on the other "
"system, then run 'zpool import'."),
hostname, (unsigned long) hostid);
} else if (mmp_state == MMP_STATE_NO_HOSTID) {
(void) snprintf(aux, sizeof (aux),
dgettext(TEXT_DOMAIN, "pool has "
"the multihost property on and "
"the\nsystem's hostid is not "
"set.\n"));
}
(void) zfs_error_aux(hdl, aux);
}
(void) zfs_error(hdl, EZFS_ACTIVE_POOL, desc);
break;
case EINVAL:
(void) zfs_error(hdl, EZFS_INVALCONFIG, desc);
break;
case EROFS:
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"one or more devices is read only"));
(void) zfs_error(hdl, EZFS_BADDEV, desc);
break;
case ENXIO:
if (nv && nvlist_lookup_nvlist(nv,
ZPOOL_CONFIG_LOAD_INFO, &nvinfo) == 0 &&
nvlist_lookup_nvlist(nvinfo,
ZPOOL_CONFIG_MISSING_DEVICES, &missing) == 0) {
(void) printf(dgettext(TEXT_DOMAIN,
"The devices below are missing or "
"corrupted, use '-m' to import the pool "
"anyway:\n"));
print_vdev_tree(hdl, NULL, missing, 2);
(void) printf("\n");
}
(void) zpool_standard_error(hdl, error, desc);
break;
case EEXIST:
(void) zpool_standard_error(hdl, error, desc);
break;
case ENAMETOOLONG:
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"new name of at least one dataset is longer than "
"the maximum allowable length"));
(void) zfs_error(hdl, EZFS_NAMETOOLONG, desc);
break;
default:
(void) zpool_standard_error(hdl, error, desc);
zpool_explain_recover(hdl,
newname ? origname : thename, -error, nv);
break;
}
nvlist_free(nv);
ret = -1;
} else {
zpool_handle_t *zhp;
if (zpool_open_silent(hdl, thename, &zhp) != 0)
ret = -1;
else if (zhp != NULL)
zpool_close(zhp);
if (policy.zlp_rewind &
(ZPOOL_DO_REWIND | ZPOOL_TRY_REWIND)) {
zpool_rewind_exclaim(hdl, newname ? origname : thename,
((policy.zlp_rewind & ZPOOL_TRY_REWIND) != 0), nv);
}
nvlist_free(nv);
return (0);
}
return (ret);
}
static int
zpool_translate_vdev_guids(zpool_handle_t *zhp, nvlist_t *vds,
nvlist_t *vdev_guids, nvlist_t *guids_to_paths, nvlist_t **vd_errlist)
{
nvlist_t *errlist = NULL;
int error = 0;
for (nvpair_t *elem = nvlist_next_nvpair(vds, NULL); elem != NULL;
elem = nvlist_next_nvpair(vds, elem)) {
boolean_t spare, cache;
char *vd_path = nvpair_name(elem);
nvlist_t *tgt = zpool_find_vdev(zhp, vd_path, &spare, &cache,
NULL);
if ((tgt == NULL) || cache || spare) {
if (errlist == NULL) {
errlist = fnvlist_alloc();
error = EINVAL;
}
uint64_t err = (tgt == NULL) ? EZFS_NODEVICE :
(spare ? EZFS_ISSPARE : EZFS_ISL2CACHE);
fnvlist_add_int64(errlist, vd_path, err);
continue;
}
uint64_t guid = fnvlist_lookup_uint64(tgt, ZPOOL_CONFIG_GUID);
fnvlist_add_uint64(vdev_guids, vd_path, guid);
char msg[MAXNAMELEN];
(void) snprintf(msg, sizeof (msg), "%llu", (u_longlong_t)guid);
fnvlist_add_string(guids_to_paths, msg, vd_path);
}
if (error != 0) {
verify(errlist != NULL);
if (vd_errlist != NULL)
*vd_errlist = errlist;
else
fnvlist_free(errlist);
}
return (error);
}
int
zpool_scan(zpool_handle_t *zhp, pool_scan_func_t func, pool_scrub_cmd_t cmd)
{
zfs_cmd_t zc = { 0 };
char msg[1024];
int err;
libzfs_handle_t *hdl = zhp->zpool_hdl;
(void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name));
zc.zc_cookie = func;
zc.zc_flags = cmd;
if (zfs_ioctl(hdl, ZFS_IOC_POOL_SCAN, &zc) == 0)
return (0);
err = errno;
if (err == ECANCELED && func == POOL_SCAN_SCRUB &&
cmd == POOL_SCRUB_NORMAL)
return (0);
if (err == ENOENT && func != POOL_SCAN_NONE && cmd == POOL_SCRUB_NORMAL)
return (0);
if (func == POOL_SCAN_SCRUB) {
if (cmd == POOL_SCRUB_PAUSE) {
(void) snprintf(msg, sizeof (msg), dgettext(TEXT_DOMAIN,
"cannot pause scrubbing %s"), zc.zc_name);
} else {
assert(cmd == POOL_SCRUB_NORMAL);
(void) snprintf(msg, sizeof (msg), dgettext(TEXT_DOMAIN,
"cannot scrub %s"), zc.zc_name);
}
} else if (func == POOL_SCAN_RESILVER) {
assert(cmd == POOL_SCRUB_NORMAL);
(void) snprintf(msg, sizeof (msg), dgettext(TEXT_DOMAIN,
"cannot restart resilver on %s"), zc.zc_name);
} else if (func == POOL_SCAN_NONE) {
(void) snprintf(msg, sizeof (msg),
dgettext(TEXT_DOMAIN, "cannot cancel scrubbing %s"),
zc.zc_name);
} else {
assert(!"unexpected result");
}
if (err == EBUSY) {
nvlist_t *nvroot;
pool_scan_stat_t *ps = NULL;
uint_t psc;
verify(nvlist_lookup_nvlist(zhp->zpool_config,
ZPOOL_CONFIG_VDEV_TREE, &nvroot) == 0);
(void) nvlist_lookup_uint64_array(nvroot,
ZPOOL_CONFIG_SCAN_STATS, (uint64_t **)&ps, &psc);
if (ps && ps->pss_func == POOL_SCAN_SCRUB) {
if (cmd == POOL_SCRUB_PAUSE)
return (zfs_error(hdl, EZFS_SCRUB_PAUSED, msg));
else
return (zfs_error(hdl, EZFS_SCRUBBING, msg));
} else {
return (zfs_error(hdl, EZFS_RESILVERING, msg));
}
} else if (err == ENOENT) {
return (zfs_error(hdl, EZFS_NO_SCRUB, msg));
} else if (err == ENOTSUP && func == POOL_SCAN_RESILVER) {
return (zfs_error(hdl, EZFS_NO_RESILVER_DEFER, msg));
} else {
return (zpool_standard_error(hdl, err, msg));
}
}
static int
xlate_init_err(int err)
{
switch (err) {
case ENODEV:
return (EZFS_NODEVICE);
case EINVAL:
case EROFS:
return (EZFS_BADDEV);
case EBUSY:
return (EZFS_INITIALIZING);
case ESRCH:
return (EZFS_NO_INITIALIZE);
}
return (err);
}
int
zpool_initialize(zpool_handle_t *zhp, pool_initialize_func_t cmd_type,
nvlist_t *vds)
{
char msg[1024];
int err;
nvlist_t *vdev_guids = fnvlist_alloc();
nvlist_t *guids_to_paths = fnvlist_alloc();
nvlist_t *vd_errlist = NULL;
nvlist_t *errlist;
nvpair_t *elem;
err = zpool_translate_vdev_guids(zhp, vds, vdev_guids,
guids_to_paths, &vd_errlist);
if (err == 0) {
err = lzc_initialize(zhp->zpool_name, cmd_type,
vdev_guids, &errlist);
if (err == 0) {
fnvlist_free(vdev_guids);
fnvlist_free(guids_to_paths);
return (0);
}
if (errlist != NULL) {
vd_errlist = fnvlist_lookup_nvlist(errlist,
ZPOOL_INITIALIZE_VDEVS);
}
(void) snprintf(msg, sizeof (msg),
dgettext(TEXT_DOMAIN, "operation failed"));
} else {
verify(vd_errlist != NULL);
}
for (elem = nvlist_next_nvpair(vd_errlist, NULL); elem != NULL;
elem = nvlist_next_nvpair(vd_errlist, elem)) {
int64_t vd_error = xlate_init_err(fnvpair_value_int64(elem));
char *path;
if (nvlist_lookup_string(guids_to_paths, nvpair_name(elem),
&path) != 0)
path = nvpair_name(elem);
(void) zfs_error_fmt(zhp->zpool_hdl, vd_error,
"cannot initialize '%s'", path);
}
fnvlist_free(vdev_guids);
fnvlist_free(guids_to_paths);
if (vd_errlist != NULL) {
fnvlist_free(vd_errlist);
return (-1);
}
return (zpool_standard_error(zhp->zpool_hdl, err, msg));
}
static int
xlate_trim_err(int err)
{
switch (err) {
case ENODEV:
return (EZFS_NODEVICE);
case EINVAL:
case EROFS:
return (EZFS_BADDEV);
case EBUSY:
return (EZFS_TRIMMING);
case ESRCH:
return (EZFS_NO_TRIM);
case EOPNOTSUPP:
return (EZFS_TRIM_NOTSUP);
}
return (err);
}
int
zpool_trim(zpool_handle_t *zhp, pool_trim_func_t cmd_type, nvlist_t *vds,
trimflags_t *trim_flags)
{
char msg[1024];
int err;
nvlist_t *vdev_guids = fnvlist_alloc();
nvlist_t *guids_to_paths = fnvlist_alloc();
nvlist_t *vd_errlist = NULL;
nvlist_t *errlist;
nvpair_t *elem;
err = zpool_translate_vdev_guids(zhp, vds, vdev_guids,
guids_to_paths, &vd_errlist);
if (err == 0) {
err = lzc_trim(zhp->zpool_name, cmd_type, trim_flags->rate,
trim_flags->secure, vdev_guids, &errlist);
if (err == 0) {
fnvlist_free(vdev_guids);
fnvlist_free(guids_to_paths);
return (0);
}
if (errlist != NULL) {
vd_errlist = fnvlist_lookup_nvlist(errlist,
ZPOOL_TRIM_VDEVS);
}
(void) snprintf(msg, sizeof (msg),
dgettext(TEXT_DOMAIN, "operation failed"));
} else {
verify(vd_errlist != NULL);
}
for (elem = nvlist_next_nvpair(vd_errlist, NULL);
elem != NULL; elem = nvlist_next_nvpair(vd_errlist, elem)) {
int64_t vd_error = xlate_trim_err(fnvpair_value_int64(elem));
char *path;
if (vd_error == EZFS_TRIM_NOTSUP &&
trim_flags->fullpool &&
!trim_flags->secure) {
continue;
}
if (nvlist_lookup_string(guids_to_paths, nvpair_name(elem),
&path) != 0)
path = nvpair_name(elem);
(void) zfs_error_fmt(zhp->zpool_hdl, vd_error,
"cannot trim '%s'", path);
}
fnvlist_free(vdev_guids);
fnvlist_free(guids_to_paths);
if (vd_errlist != NULL) {
fnvlist_free(vd_errlist);
return (-1);
}
return (zpool_standard_error(zhp->zpool_hdl, err, msg));
}
#define CTD_CHECK(str) (str && str[0] == 'c' && isdigit(str[1]))
static int
ctd_check_path(char *str)
{
if (str && str[0] == '/') {
char *tmp = strrchr(str, '/');
if (tmp != str && strcmp(tmp, "/old") == 0) {
for (tmp--; *tmp != '/'; tmp--)
;
}
str = tmp + 1;
}
return (CTD_CHECK(str));
}
static nvlist_t *
vdev_to_nvlist_iter(nvlist_t *nv, nvlist_t *search, boolean_t *avail_spare,
boolean_t *l2cache, boolean_t *log)
{
uint_t c, children;
nvlist_t **child;
nvlist_t *ret;
uint64_t is_log;
char *srchkey;
nvpair_t *pair = nvlist_next_nvpair(search, NULL);
if (search == NULL || pair == NULL)
return (NULL);
srchkey = nvpair_name(pair);
switch (nvpair_type(pair)) {
case DATA_TYPE_UINT64:
if (strcmp(srchkey, ZPOOL_CONFIG_GUID) == 0) {
uint64_t srchval, theguid;
verify(nvpair_value_uint64(pair, &srchval) == 0);
verify(nvlist_lookup_uint64(nv, ZPOOL_CONFIG_GUID,
&theguid) == 0);
if (theguid == srchval)
return (nv);
}
break;
case DATA_TYPE_STRING: {
char *srchval, *val;
verify(nvpair_value_string(pair, &srchval) == 0);
if (nvlist_lookup_string(nv, srchkey, &val) != 0)
break;
if (strcmp(srchkey, ZPOOL_CONFIG_PATH) == 0 &&
ctd_check_path(val)) {
uint64_t wholedisk = 0;
(void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_WHOLE_DISK,
&wholedisk);
if (wholedisk) {
int slen = strlen(srchval);
int vlen = strlen(val);
if (slen != vlen - 2)
break;
ASSERT(vlen >= 6);
if ((strcmp(&val[vlen - 2], "s0") == 0 ||
strcmp(&val[vlen - 2], "s1") == 0) &&
strncmp(srchval, val, slen) == 0)
return (nv);
if ((strcmp(&val[vlen - 6], "s0/old") == 0 ||
strcmp(&val[vlen - 6], "s1/old") == 0) &&
strcmp(&srchval[slen - 4], "/old") == 0 &&
strncmp(srchval, val, slen - 4) == 0)
return (nv);
break;
}
} else if (strcmp(srchkey, ZPOOL_CONFIG_TYPE) == 0 && val) {
char *type, *idx, *end, *p;
uint64_t id, vdev_id;
if ((type = strdup(srchval)) == NULL)
return (NULL);
if ((p = strrchr(type, '-')) == NULL) {
free(type);
break;
}
idx = p + 1;
*p = '\0';
if (strncmp(val, type, strlen(val)) != 0) {
free(type);
break;
}
verify(zpool_vdev_is_interior(type));
verify(nvlist_lookup_uint64(nv, ZPOOL_CONFIG_ID,
&id) == 0);
errno = 0;
vdev_id = strtoull(idx, &end, 10);
free(type);
if (errno != 0)
return (NULL);
if (vdev_id == id)
return (nv);
}
if (strcmp(srchval, val) == 0)
return (nv);
break;
}
default:
break;
}
if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
&child, &children) != 0)
return (NULL);
for (c = 0; c < children; c++) {
if ((ret = vdev_to_nvlist_iter(child[c], search,
avail_spare, l2cache, NULL)) != NULL) {
if (log != NULL &&
nvlist_lookup_uint64(child[c],
ZPOOL_CONFIG_IS_LOG, &is_log) == 0 &&
is_log) {
*log = B_TRUE;
}
return (ret);
}
}
if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_SPARES,
&child, &children) == 0) {
for (c = 0; c < children; c++) {
if ((ret = vdev_to_nvlist_iter(child[c], search,
avail_spare, l2cache, NULL)) != NULL) {
*avail_spare = B_TRUE;
return (ret);
}
}
}
if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_L2CACHE,
&child, &children) == 0) {
for (c = 0; c < children; c++) {
if ((ret = vdev_to_nvlist_iter(child[c], search,
avail_spare, l2cache, NULL)) != NULL) {
*l2cache = B_TRUE;
return (ret);
}
}
}
return (NULL);
}
nvlist_t *
zpool_find_vdev_by_physpath(zpool_handle_t *zhp, const char *ppath,
boolean_t *avail_spare, boolean_t *l2cache, boolean_t *log)
{
nvlist_t *search, *nvroot, *ret;
verify(nvlist_alloc(&search, NV_UNIQUE_NAME, KM_SLEEP) == 0);
verify(nvlist_add_string(search, ZPOOL_CONFIG_PHYS_PATH, ppath) == 0);
verify(nvlist_lookup_nvlist(zhp->zpool_config, ZPOOL_CONFIG_VDEV_TREE,
&nvroot) == 0);
*avail_spare = B_FALSE;
*l2cache = B_FALSE;
if (log != NULL)
*log = B_FALSE;
ret = vdev_to_nvlist_iter(nvroot, search, avail_spare, l2cache, log);
nvlist_free(search);
return (ret);
}
static boolean_t
zpool_vdev_is_interior(const char *name)
{
if (strncmp(name, VDEV_TYPE_RAIDZ, strlen(VDEV_TYPE_RAIDZ)) == 0 ||
strncmp(name, VDEV_TYPE_SPARE, strlen(VDEV_TYPE_SPARE)) == 0 ||
strncmp(name,
VDEV_TYPE_REPLACING, strlen(VDEV_TYPE_REPLACING)) == 0 ||
strncmp(name, VDEV_TYPE_MIRROR, strlen(VDEV_TYPE_MIRROR)) == 0)
return (B_TRUE);
return (B_FALSE);
}
nvlist_t *
zpool_find_vdev(zpool_handle_t *zhp, const char *path, boolean_t *avail_spare,
boolean_t *l2cache, boolean_t *log)
{
char buf[MAXPATHLEN];
char *end;
nvlist_t *nvroot, *search, *ret;
uint64_t guid;
verify(nvlist_alloc(&search, NV_UNIQUE_NAME, KM_SLEEP) == 0);
guid = strtoull(path, &end, 10);
if (guid != 0 && *end == '\0') {
verify(nvlist_add_uint64(search, ZPOOL_CONFIG_GUID, guid) == 0);
} else if (zpool_vdev_is_interior(path)) {
verify(nvlist_add_string(search, ZPOOL_CONFIG_TYPE, path) == 0);
} else if (path[0] != '/') {
(void) snprintf(buf, sizeof (buf), "%s/%s", ZFS_DISK_ROOT,
path);
verify(nvlist_add_string(search, ZPOOL_CONFIG_PATH, buf) == 0);
} else {
verify(nvlist_add_string(search, ZPOOL_CONFIG_PATH, path) == 0);
}
verify(nvlist_lookup_nvlist(zhp->zpool_config, ZPOOL_CONFIG_VDEV_TREE,
&nvroot) == 0);
*avail_spare = B_FALSE;
*l2cache = B_FALSE;
if (log != NULL)
*log = B_FALSE;
ret = vdev_to_nvlist_iter(nvroot, search, avail_spare, l2cache, log);
nvlist_free(search);
return (ret);
}
static int
vdev_is_online(nvlist_t *nv)
{
uint64_t ival;
if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_OFFLINE, &ival) == 0 ||
nvlist_lookup_uint64(nv, ZPOOL_CONFIG_FAULTED, &ival) == 0 ||
nvlist_lookup_uint64(nv, ZPOOL_CONFIG_REMOVED, &ival) == 0)
return (0);
return (1);
}
static int
vdev_get_one_physpath(nvlist_t *config, char *physpath, size_t physpath_size,
size_t *bytes_written)
{
size_t bytes_left, pos, rsz;
char *tmppath;
const char *format;
if (nvlist_lookup_string(config, ZPOOL_CONFIG_PHYS_PATH,
&tmppath) != 0)
return (EZFS_NODEVICE);
pos = *bytes_written;
bytes_left = physpath_size - pos;
format = (pos == 0) ? "%s" : " %s";
rsz = snprintf(physpath + pos, bytes_left, format, tmppath);
*bytes_written += rsz;
if (rsz >= bytes_left) {
if (bytes_left != 0) {
physpath[pos] = 0;
}
return (EZFS_NOSPC);
}
return (0);
}
static int
vdev_get_physpaths(nvlist_t *nv, char *physpath, size_t phypath_size,
size_t *rsz, boolean_t is_spare)
{
char *type;
int ret;
if (nvlist_lookup_string(nv, ZPOOL_CONFIG_TYPE, &type) != 0)
return (EZFS_INVALCONFIG);
if (strcmp(type, VDEV_TYPE_DISK) == 0) {
if (is_spare) {
uint64_t spare = 0;
(void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_IS_SPARE,
&spare);
if (!spare)
return (EZFS_INVALCONFIG);
}
if (vdev_is_online(nv)) {
if ((ret = vdev_get_one_physpath(nv, physpath,
phypath_size, rsz)) != 0)
return (ret);
}
} else if (strcmp(type, VDEV_TYPE_MIRROR) == 0 ||
strcmp(type, VDEV_TYPE_RAIDZ) == 0 ||
strcmp(type, VDEV_TYPE_REPLACING) == 0 ||
(is_spare = (strcmp(type, VDEV_TYPE_SPARE) == 0))) {
nvlist_t **child;
uint_t count;
int i, ret;
if (nvlist_lookup_nvlist_array(nv,
ZPOOL_CONFIG_CHILDREN, &child, &count) != 0)
return (EZFS_INVALCONFIG);
for (i = 0; i < count; i++) {
ret = vdev_get_physpaths(child[i], physpath,
phypath_size, rsz, is_spare);
if (ret == EZFS_NOSPC)
return (ret);
}
}
return (EZFS_POOL_INVALARG);
}
static int
zpool_get_config_physpath(nvlist_t *config, char *physpath, size_t phypath_size)
{
size_t rsz;
nvlist_t *vdev_root;
nvlist_t **child;
uint_t count;
char *type;
rsz = 0;
if (nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
&vdev_root) != 0)
return (EZFS_INVALCONFIG);
if (nvlist_lookup_string(vdev_root, ZPOOL_CONFIG_TYPE, &type) != 0 ||
nvlist_lookup_nvlist_array(vdev_root, ZPOOL_CONFIG_CHILDREN,
&child, &count) != 0)
return (EZFS_INVALCONFIG);
if (strcmp(type, VDEV_TYPE_ROOT) != 0 || count != 1)
return (EZFS_POOL_INVALARG);
(void) vdev_get_physpaths(child[0], physpath, phypath_size, &rsz,
B_FALSE);
if (rsz == 0)
return (EZFS_NODEVICE);
return (0);
}
int
zpool_get_physpath(zpool_handle_t *zhp, char *physpath, size_t phypath_size)
{
return (zpool_get_config_physpath(zhp->zpool_config, physpath,
phypath_size));
}
static int
zpool_relabel_disk(libzfs_handle_t *hdl, const char *name, const char *msg)
{
char path[MAXPATHLEN];
int fd, error;
int (*_efi_use_whole_disk)(int);
char drv[MODMAXNAMELEN];
major_t maj;
struct stat st;
if ((_efi_use_whole_disk = (int (*)(int))dlsym(RTLD_DEFAULT,
"efi_use_whole_disk")) == NULL)
return (-1);
(void) snprintf(path, sizeof (path), "%s/%s", ZFS_RDISK_ROOT, name);
if ((fd = open(path, O_RDWR | O_NDELAY)) < 0) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "cannot "
"relabel '%s': unable to open device"), name);
return (zfs_error(hdl, EZFS_OPENFAILED, msg));
}
error = _efi_use_whole_disk(fd);
if (error && error != VT_ENOSPC) {
(void) close(fd);
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "cannot "
"relabel '%s': unable to read disk capacity"), name);
return (zfs_error(hdl, EZFS_NOCAP, msg));
}
if (fstat(fd, &st) == 0 &&
(maj = major(st.st_rdev)) != (major_t)NODEV &&
modctl(MODGETNAME, drv, sizeof (drv), &maj) == 0 &&
(strcmp(drv, "blkdev") == 0 || strcmp(drv, "sd") == 0)) {
enum dkio_state dkst = DKIO_NONE;
(void) ioctl(fd, DKIOCSTATE, &dkst);
}
(void) close(fd);
return (0);
}
int
zpool_vdev_online(zpool_handle_t *zhp, const char *path, int flags,
vdev_state_t *newstate)
{
zfs_cmd_t zc = { 0 };
char msg[1024];
char *pathname;
nvlist_t *tgt;
boolean_t avail_spare, l2cache, islog;
libzfs_handle_t *hdl = zhp->zpool_hdl;
int error;
if (flags & ZFS_ONLINE_EXPAND) {
(void) snprintf(msg, sizeof (msg),
dgettext(TEXT_DOMAIN, "cannot expand %s"), path);
} else {
(void) snprintf(msg, sizeof (msg),
dgettext(TEXT_DOMAIN, "cannot online %s"), path);
}
(void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name));
if ((tgt = zpool_find_vdev(zhp, path, &avail_spare, &l2cache,
&islog)) == NULL)
return (zfs_error(hdl, EZFS_NODEVICE, msg));
verify(nvlist_lookup_uint64(tgt, ZPOOL_CONFIG_GUID, &zc.zc_guid) == 0);
if (avail_spare)
return (zfs_error(hdl, EZFS_ISSPARE, msg));
if ((flags & ZFS_ONLINE_EXPAND ||
zpool_get_prop_int(zhp, ZPOOL_PROP_AUTOEXPAND, NULL)) &&
nvlist_lookup_string(tgt, ZPOOL_CONFIG_PATH, &pathname) == 0) {
uint64_t wholedisk = 0;
(void) nvlist_lookup_uint64(tgt, ZPOOL_CONFIG_WHOLE_DISK,
&wholedisk);
if (l2cache) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"cannot expand cache devices"));
return (zfs_error(hdl, EZFS_VDEVNOTSUP, msg));
}
if (wholedisk) {
pathname += strlen(ZFS_DISK_ROOT) + 1;
error = zpool_relabel_disk(hdl, pathname, msg);
if (error != 0)
return (error);
}
}
zc.zc_cookie = VDEV_STATE_ONLINE;
zc.zc_obj = flags;
if (zfs_ioctl(hdl, ZFS_IOC_VDEV_SET_STATE, &zc) != 0) {
if (errno == EINVAL) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "was split "
"from this pool into a new one. Use '%s' "
"instead"), "zpool detach");
return (zfs_error(hdl, EZFS_POSTSPLIT_ONLINE, msg));
}
return (zpool_standard_error(hdl, errno, msg));
}
*newstate = zc.zc_cookie;
return (0);
}
int
zpool_vdev_offline(zpool_handle_t *zhp, const char *path, boolean_t istmp)
{
zfs_cmd_t zc = { 0 };
char msg[1024];
nvlist_t *tgt;
boolean_t avail_spare, l2cache;
libzfs_handle_t *hdl = zhp->zpool_hdl;
(void) snprintf(msg, sizeof (msg),
dgettext(TEXT_DOMAIN, "cannot offline %s"), path);
(void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name));
if ((tgt = zpool_find_vdev(zhp, path, &avail_spare, &l2cache,
NULL)) == NULL)
return (zfs_error(hdl, EZFS_NODEVICE, msg));
verify(nvlist_lookup_uint64(tgt, ZPOOL_CONFIG_GUID, &zc.zc_guid) == 0);
if (avail_spare)
return (zfs_error(hdl, EZFS_ISSPARE, msg));
zc.zc_cookie = VDEV_STATE_OFFLINE;
zc.zc_obj = istmp ? ZFS_OFFLINE_TEMPORARY : 0;
if (zfs_ioctl(hdl, ZFS_IOC_VDEV_SET_STATE, &zc) == 0)
return (0);
switch (errno) {
case EBUSY:
return (zfs_error(hdl, EZFS_NOREPLICAS, msg));
case EEXIST:
return (zfs_error(hdl, EZFS_UNPLAYED_LOGS, msg));
default:
return (zpool_standard_error(hdl, errno, msg));
}
}
int
zpool_vdev_fault(zpool_handle_t *zhp, uint64_t guid, vdev_aux_t aux)
{
zfs_cmd_t zc = { 0 };
char msg[1024];
libzfs_handle_t *hdl = zhp->zpool_hdl;
(void) snprintf(msg, sizeof (msg),
dgettext(TEXT_DOMAIN, "cannot fault %llu"), guid);
(void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name));
zc.zc_guid = guid;
zc.zc_cookie = VDEV_STATE_FAULTED;
zc.zc_obj = aux;
if (ioctl(hdl->libzfs_fd, ZFS_IOC_VDEV_SET_STATE, &zc) == 0)
return (0);
switch (errno) {
case EBUSY:
return (zfs_error(hdl, EZFS_NOREPLICAS, msg));
default:
return (zpool_standard_error(hdl, errno, msg));
}
}
int
zpool_vdev_degrade(zpool_handle_t *zhp, uint64_t guid, vdev_aux_t aux)
{
zfs_cmd_t zc = { 0 };
char msg[1024];
libzfs_handle_t *hdl = zhp->zpool_hdl;
(void) snprintf(msg, sizeof (msg),
dgettext(TEXT_DOMAIN, "cannot degrade %llu"), guid);
(void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name));
zc.zc_guid = guid;
zc.zc_cookie = VDEV_STATE_DEGRADED;
zc.zc_obj = aux;
if (ioctl(hdl->libzfs_fd, ZFS_IOC_VDEV_SET_STATE, &zc) == 0)
return (0);
return (zpool_standard_error(hdl, errno, msg));
}
static boolean_t
is_replacing_spare(nvlist_t *search, nvlist_t *tgt, int which)
{
nvlist_t **child;
uint_t c, children;
char *type;
if (nvlist_lookup_nvlist_array(search, ZPOOL_CONFIG_CHILDREN, &child,
&children) == 0) {
verify(nvlist_lookup_string(search, ZPOOL_CONFIG_TYPE,
&type) == 0);
if (strcmp(type, VDEV_TYPE_SPARE) == 0 &&
children == 2 && child[which] == tgt)
return (B_TRUE);
for (c = 0; c < children; c++)
if (is_replacing_spare(child[c], tgt, which))
return (B_TRUE);
}
return (B_FALSE);
}
int
zpool_vdev_attach(zpool_handle_t *zhp,
const char *old_disk, const char *new_disk, nvlist_t *nvroot, int replacing)
{
zfs_cmd_t zc = { 0 };
char msg[1024];
int ret;
nvlist_t *tgt, *newvd;
boolean_t avail_spare, l2cache, islog;
uint64_t val;
char *newname;
nvlist_t **child;
uint_t children;
nvlist_t *config_root;
libzfs_handle_t *hdl = zhp->zpool_hdl;
boolean_t rootpool = zpool_is_bootable(zhp);
if (replacing)
(void) snprintf(msg, sizeof (msg), dgettext(TEXT_DOMAIN,
"cannot replace %s with %s"), old_disk, new_disk);
else
(void) snprintf(msg, sizeof (msg), dgettext(TEXT_DOMAIN,
"cannot attach %s to %s"), new_disk, old_disk);
(void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name));
if ((tgt = zpool_find_vdev(zhp, old_disk, &avail_spare, &l2cache,
&islog)) == NULL)
return (zfs_error(hdl, EZFS_NODEVICE, msg));
if (avail_spare)
return (zfs_error(hdl, EZFS_ISSPARE, msg));
if (l2cache)
return (zfs_error(hdl, EZFS_ISL2CACHE, msg));
verify(nvlist_lookup_uint64(tgt, ZPOOL_CONFIG_GUID, &zc.zc_guid) == 0);
zc.zc_cookie = replacing;
if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_CHILDREN,
&child, &children) != 0 || children != 1) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"new device must be a single disk"));
return (zfs_error(hdl, EZFS_INVALCONFIG, msg));
}
verify(nvlist_lookup_nvlist(zpool_get_config(zhp, NULL),
ZPOOL_CONFIG_VDEV_TREE, &config_root) == 0);
if ((newname = zpool_vdev_name(NULL, NULL, child[0], 0)) == NULL)
return (-1);
newvd = zpool_find_vdev(zhp, newname, &avail_spare, &l2cache, NULL);
if (replacing &&
nvlist_lookup_uint64(tgt, ZPOOL_CONFIG_IS_SPARE, &val) == 0 &&
(newvd == NULL || !avail_spare) &&
is_replacing_spare(config_root, tgt, 1)) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"can only be replaced by another hot spare"));
free(newname);
return (zfs_error(hdl, EZFS_BADTARGET, msg));
}
free(newname);
if (replacing && avail_spare && !vdev_is_online(newvd)) {
(void) zpool_standard_error(hdl, ENXIO, msg);
return (-1);
}
if (zcmd_write_conf_nvlist(hdl, &zc, nvroot) != 0)
return (-1);
ret = zfs_ioctl(hdl, ZFS_IOC_VDEV_ATTACH, &zc);
zcmd_free_nvlists(&zc);
if (ret == 0) {
if (rootpool) {
(void) fprintf(stderr, dgettext(TEXT_DOMAIN, "Make "
"sure to wait until resilver is done "
"before rebooting.\n"));
}
return (0);
}
switch (errno) {
case ENOTSUP:
if (replacing) {
uint64_t version = zpool_get_prop_int(zhp,
ZPOOL_PROP_VERSION, NULL);
if (islog)
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"cannot replace a log with a spare"));
else if (version >= SPA_VERSION_MULTI_REPLACE)
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"already in replacing/spare config; wait "
"for completion or use 'zpool detach'"));
else
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"cannot replace a replacing device"));
} else {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"can only attach to mirrors and top-level "
"disks"));
}
(void) zfs_error(hdl, EZFS_BADTARGET, msg);
break;
case EINVAL:
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"new device must be a single disk"));
(void) zfs_error(hdl, EZFS_INVALCONFIG, msg);
break;
case EBUSY:
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "%s is busy, "
"or device removal is in progress"),
new_disk);
(void) zfs_error(hdl, EZFS_BADDEV, msg);
break;
case EOVERFLOW:
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"device is too small"));
(void) zfs_error(hdl, EZFS_BADDEV, msg);
break;
case EDOM:
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"new device has a different optimal sector size; use the "
"option '-o ashift=N' to override the optimal size"));
(void) zfs_error(hdl, EZFS_BADDEV, msg);
break;
case ENAMETOOLONG:
(void) zfs_error(hdl, EZFS_DEVOVERFLOW, msg);
break;
default:
(void) zpool_standard_error(hdl, errno, msg);
}
return (-1);
}
int
zpool_vdev_detach(zpool_handle_t *zhp, const char *path)
{
zfs_cmd_t zc = { 0 };
char msg[1024];
nvlist_t *tgt;
boolean_t avail_spare, l2cache;
libzfs_handle_t *hdl = zhp->zpool_hdl;
(void) snprintf(msg, sizeof (msg),
dgettext(TEXT_DOMAIN, "cannot detach %s"), path);
(void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name));
if ((tgt = zpool_find_vdev(zhp, path, &avail_spare, &l2cache,
NULL)) == NULL)
return (zfs_error(hdl, EZFS_NODEVICE, msg));
if (avail_spare)
return (zfs_error(hdl, EZFS_ISSPARE, msg));
if (l2cache)
return (zfs_error(hdl, EZFS_ISL2CACHE, msg));
verify(nvlist_lookup_uint64(tgt, ZPOOL_CONFIG_GUID, &zc.zc_guid) == 0);
if (zfs_ioctl(hdl, ZFS_IOC_VDEV_DETACH, &zc) == 0)
return (0);
switch (errno) {
case ENOTSUP:
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "only "
"applicable to mirror and replacing vdevs"));
(void) zfs_error(hdl, EZFS_BADTARGET, msg);
break;
case EBUSY:
(void) zfs_error(hdl, EZFS_NOREPLICAS, msg);
break;
default:
(void) zpool_standard_error(hdl, errno, msg);
}
return (-1);
}
static int
find_vdev_entry(zpool_handle_t *zhp, nvlist_t **mchild, uint_t mchildren,
nvlist_t **schild, uint_t schildren)
{
uint_t mc;
for (mc = 0; mc < mchildren; mc++) {
uint_t sc;
char *mpath = zpool_vdev_name(zhp->zpool_hdl, zhp,
mchild[mc], 0);
for (sc = 0; sc < schildren; sc++) {
char *spath = zpool_vdev_name(zhp->zpool_hdl, zhp,
schild[sc], 0);
boolean_t result = (strcmp(mpath, spath) == 0);
free(spath);
if (result) {
free(mpath);
return (mc);
}
}
free(mpath);
}
return (-1);
}
int
zpool_vdev_split(zpool_handle_t *zhp, char *newname, nvlist_t **newroot,
nvlist_t *props, splitflags_t flags)
{
zfs_cmd_t zc = { 0 };
char msg[1024];
nvlist_t *tree, *config, **child, **newchild, *newconfig = NULL;
nvlist_t **varray = NULL, *zc_props = NULL;
uint_t c, children, newchildren, lastlog = 0, vcount, found = 0;
libzfs_handle_t *hdl = zhp->zpool_hdl;
uint64_t vers;
boolean_t freelist = B_FALSE, memory_err = B_TRUE;
int retval = 0;
(void) snprintf(msg, sizeof (msg),
dgettext(TEXT_DOMAIN, "Unable to split %s"), zhp->zpool_name);
if (!zpool_name_valid(hdl, B_FALSE, newname))
return (zfs_error(hdl, EZFS_INVALIDNAME, msg));
if ((config = zpool_get_config(zhp, NULL)) == NULL) {
(void) fprintf(stderr, gettext("Internal error: unable to "
"retrieve pool configuration\n"));
return (-1);
}
verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, &tree)
== 0);
verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION, &vers) == 0);
if (props) {
prop_flags_t flags = { .create = B_FALSE, .import = B_TRUE };
if ((zc_props = zpool_valid_proplist(hdl, zhp->zpool_name,
props, vers, flags, msg)) == NULL)
return (-1);
}
if (nvlist_lookup_nvlist_array(tree, ZPOOL_CONFIG_CHILDREN, &child,
&children) != 0) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"Source pool is missing vdev tree"));
nvlist_free(zc_props);
return (-1);
}
varray = zfs_alloc(hdl, children * sizeof (nvlist_t *));
vcount = 0;
if (*newroot == NULL ||
nvlist_lookup_nvlist_array(*newroot, ZPOOL_CONFIG_CHILDREN,
&newchild, &newchildren) != 0)
newchildren = 0;
for (c = 0; c < children; c++) {
uint64_t is_log = B_FALSE, is_hole = B_FALSE;
char *type;
nvlist_t **mchild, *vdev;
uint_t mchildren;
int entry;
(void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_LOG,
&is_log);
(void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_HOLE,
&is_hole);
if (is_log || is_hole) {
if (nvlist_alloc(&vdev, NV_UNIQUE_NAME, 0) != 0)
goto out;
if (nvlist_add_string(vdev, ZPOOL_CONFIG_TYPE,
VDEV_TYPE_HOLE) != 0)
goto out;
if (nvlist_add_uint64(vdev, ZPOOL_CONFIG_IS_HOLE,
1) != 0)
goto out;
if (lastlog == 0)
lastlog = vcount;
varray[vcount++] = vdev;
continue;
}
lastlog = 0;
verify(nvlist_lookup_string(child[c], ZPOOL_CONFIG_TYPE, &type)
== 0);
if (strcmp(type, VDEV_TYPE_MIRROR) != 0) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"Source pool must be composed only of mirrors\n"));
retval = zfs_error(hdl, EZFS_INVALCONFIG, msg);
goto out;
}
verify(nvlist_lookup_nvlist_array(child[c],
ZPOOL_CONFIG_CHILDREN, &mchild, &mchildren) == 0);
if (newchildren > 0 &&
(entry = find_vdev_entry(zhp, mchild, mchildren,
newchild, newchildren)) >= 0) {
vdev = mchild[entry];
++found;
} else {
vdev = mchild[mchildren - 1];
}
if (nvlist_dup(vdev, &varray[vcount++], 0) != 0)
goto out;
}
if (found != newchildren) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "Device list must "
"include at most one disk from each mirror"));
retval = zfs_error(hdl, EZFS_INVALCONFIG, msg);
goto out;
}
if (*newroot == NULL) {
if (nvlist_alloc(newroot, NV_UNIQUE_NAME, 0) != 0)
goto out;
freelist = B_TRUE;
if (nvlist_add_string(*newroot, ZPOOL_CONFIG_TYPE,
VDEV_TYPE_ROOT) != 0)
goto out;
} else {
verify(nvlist_remove_all(*newroot, ZPOOL_CONFIG_CHILDREN) == 0);
}
if (nvlist_add_nvlist_array(*newroot, ZPOOL_CONFIG_CHILDREN, varray,
lastlog == 0 ? vcount : lastlog) != 0)
goto out;
if (flags.dryrun) {
memory_err = B_FALSE;
freelist = B_FALSE;
goto out;
}
if (nvlist_alloc(&newconfig, NV_UNIQUE_NAME, 0) != 0)
goto out;
if (nvlist_add_nvlist(newconfig,
ZPOOL_CONFIG_VDEV_TREE, *newroot) != 0 ||
nvlist_add_string(newconfig,
ZPOOL_CONFIG_POOL_NAME, newname) != 0 ||
nvlist_add_uint64(newconfig, ZPOOL_CONFIG_VERSION, vers) != 0)
goto out;
if (!flags.import)
zc.zc_cookie = ZPOOL_EXPORT_AFTER_SPLIT;
(void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name));
(void) strlcpy(zc.zc_string, newname, sizeof (zc.zc_string));
if (zcmd_write_conf_nvlist(hdl, &zc, newconfig) != 0)
goto out;
if (zc_props != NULL && zcmd_write_src_nvlist(hdl, &zc, zc_props) != 0)
goto out;
if (zfs_ioctl(hdl, ZFS_IOC_VDEV_SPLIT, &zc) != 0) {
retval = zpool_standard_error(hdl, errno, msg);
goto out;
}
freelist = B_FALSE;
memory_err = B_FALSE;
out:
if (varray != NULL) {
int v;
for (v = 0; v < vcount; v++)
nvlist_free(varray[v]);
free(varray);
}
zcmd_free_nvlists(&zc);
nvlist_free(zc_props);
nvlist_free(newconfig);
if (freelist) {
nvlist_free(*newroot);
*newroot = NULL;
}
if (retval != 0)
return (retval);
if (memory_err)
return (no_memory(hdl));
return (0);
}
int
zpool_vdev_remove(zpool_handle_t *zhp, const char *path)
{
zfs_cmd_t zc = { 0 };
char msg[1024];
nvlist_t *tgt;
boolean_t avail_spare, l2cache, islog;
libzfs_handle_t *hdl = zhp->zpool_hdl;
uint64_t version;
(void) snprintf(msg, sizeof (msg),
dgettext(TEXT_DOMAIN, "cannot remove %s"), path);
(void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name));
if ((tgt = zpool_find_vdev(zhp, path, &avail_spare, &l2cache,
&islog)) == NULL)
return (zfs_error(hdl, EZFS_NODEVICE, msg));
version = zpool_get_prop_int(zhp, ZPOOL_PROP_VERSION, NULL);
if (islog && version < SPA_VERSION_HOLES) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"pool must be upgraded to support log removal"));
return (zfs_error(hdl, EZFS_BADVERSION, msg));
}
zc.zc_guid = fnvlist_lookup_uint64(tgt, ZPOOL_CONFIG_GUID);
if (zfs_ioctl(hdl, ZFS_IOC_VDEV_REMOVE, &zc) == 0)
return (0);
switch (errno) {
case EINVAL:
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"invalid config; all top-level vdevs must "
"have the same sector size and not be raidz."));
(void) zfs_error(hdl, EZFS_INVALCONFIG, msg);
break;
case EBUSY:
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"Pool busy; removal may already be in progress"));
(void) zfs_error(hdl, EZFS_BUSY, msg);
break;
default:
(void) zpool_standard_error(hdl, errno, msg);
}
return (-1);
}
int
zpool_vdev_remove_cancel(zpool_handle_t *zhp)
{
zfs_cmd_t zc = { 0 };
char msg[1024];
libzfs_handle_t *hdl = zhp->zpool_hdl;
(void) snprintf(msg, sizeof (msg),
dgettext(TEXT_DOMAIN, "cannot cancel removal"));
(void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name));
zc.zc_cookie = 1;
if (zfs_ioctl(hdl, ZFS_IOC_VDEV_REMOVE, &zc) == 0)
return (0);
return (zpool_standard_error(hdl, errno, msg));
}
int
zpool_vdev_indirect_size(zpool_handle_t *zhp, const char *path,
uint64_t *sizep)
{
char msg[1024];
nvlist_t *tgt;
boolean_t avail_spare, l2cache, islog;
libzfs_handle_t *hdl = zhp->zpool_hdl;
(void) snprintf(msg, sizeof (msg),
dgettext(TEXT_DOMAIN, "cannot determine indirect size of %s"),
path);
if ((tgt = zpool_find_vdev(zhp, path, &avail_spare, &l2cache,
&islog)) == NULL)
return (zfs_error(hdl, EZFS_NODEVICE, msg));
if (avail_spare || l2cache || islog) {
*sizep = 0;
return (0);
}
if (nvlist_lookup_uint64(tgt, ZPOOL_CONFIG_INDIRECT_SIZE, sizep) != 0) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"indirect size not available"));
return (zfs_error(hdl, EINVAL, msg));
}
return (0);
}
int
zpool_clear(zpool_handle_t *zhp, const char *path, nvlist_t *rewindnvl)
{
zfs_cmd_t zc = { 0 };
char msg[1024];
nvlist_t *tgt;
zpool_load_policy_t policy;
boolean_t avail_spare, l2cache;
libzfs_handle_t *hdl = zhp->zpool_hdl;
nvlist_t *nvi = NULL;
int error;
if (path)
(void) snprintf(msg, sizeof (msg),
dgettext(TEXT_DOMAIN, "cannot clear errors for %s"),
path);
else
(void) snprintf(msg, sizeof (msg),
dgettext(TEXT_DOMAIN, "cannot clear errors for %s"),
zhp->zpool_name);
(void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name));
if (path) {
if ((tgt = zpool_find_vdev(zhp, path, &avail_spare,
&l2cache, NULL)) == NULL)
return (zfs_error(hdl, EZFS_NODEVICE, msg));
if (avail_spare)
return (zfs_error(hdl, EZFS_ISSPARE, msg));
verify(nvlist_lookup_uint64(tgt, ZPOOL_CONFIG_GUID,
&zc.zc_guid) == 0);
}
zpool_get_load_policy(rewindnvl, &policy);
zc.zc_cookie = policy.zlp_rewind;
if (zcmd_alloc_dst_nvlist(hdl, &zc, zhp->zpool_config_size * 2) != 0)
return (-1);
if (zcmd_write_src_nvlist(hdl, &zc, rewindnvl) != 0)
return (-1);
while ((error = zfs_ioctl(hdl, ZFS_IOC_CLEAR, &zc)) != 0 &&
errno == ENOMEM) {
if (zcmd_expand_dst_nvlist(hdl, &zc) != 0) {
zcmd_free_nvlists(&zc);
return (-1);
}
}
if (!error || ((policy.zlp_rewind & ZPOOL_TRY_REWIND) &&
errno != EPERM && errno != EACCES)) {
if (policy.zlp_rewind &
(ZPOOL_DO_REWIND | ZPOOL_TRY_REWIND)) {
(void) zcmd_read_dst_nvlist(hdl, &zc, &nvi);
zpool_rewind_exclaim(hdl, zc.zc_name,
((policy.zlp_rewind & ZPOOL_TRY_REWIND) != 0),
nvi);
nvlist_free(nvi);
}
zcmd_free_nvlists(&zc);
return (0);
}
zcmd_free_nvlists(&zc);
return (zpool_standard_error(hdl, errno, msg));
}
int
zpool_vdev_clear(zpool_handle_t *zhp, uint64_t guid)
{
zfs_cmd_t zc = { 0 };
char msg[1024];
libzfs_handle_t *hdl = zhp->zpool_hdl;
(void) snprintf(msg, sizeof (msg),
dgettext(TEXT_DOMAIN, "cannot clear errors for %llx"),
guid);
(void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name));
zc.zc_guid = guid;
zc.zc_cookie = ZPOOL_NO_REWIND;
if (ioctl(hdl->libzfs_fd, ZFS_IOC_CLEAR, &zc) == 0)
return (0);
return (zpool_standard_error(hdl, errno, msg));
}
int
zpool_reguid(zpool_handle_t *zhp)
{
char msg[1024];
libzfs_handle_t *hdl = zhp->zpool_hdl;
zfs_cmd_t zc = { 0 };
(void) snprintf(msg, sizeof (msg),
dgettext(TEXT_DOMAIN, "cannot reguid '%s'"), zhp->zpool_name);
(void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name));
if (zfs_ioctl(hdl, ZFS_IOC_POOL_REGUID, &zc) == 0)
return (0);
return (zpool_standard_error(hdl, errno, msg));
}
int
zpool_reopen(zpool_handle_t *zhp)
{
zfs_cmd_t zc = { 0 };
char msg[1024];
libzfs_handle_t *hdl = zhp->zpool_hdl;
(void) snprintf(msg, sizeof (msg),
dgettext(TEXT_DOMAIN, "cannot reopen '%s'"),
zhp->zpool_name);
(void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name));
if (zfs_ioctl(hdl, ZFS_IOC_POOL_REOPEN, &zc) == 0)
return (0);
return (zpool_standard_error(hdl, errno, msg));
}
int
zpool_sync_one(zpool_handle_t *zhp, void *data)
{
int ret;
libzfs_handle_t *hdl = zpool_get_handle(zhp);
const char *pool_name = zpool_get_name(zhp);
boolean_t *force = data;
nvlist_t *innvl = fnvlist_alloc();
fnvlist_add_boolean_value(innvl, "force", *force);
if ((ret = lzc_sync(pool_name, innvl, NULL)) != 0) {
nvlist_free(innvl);
return (zpool_standard_error_fmt(hdl, ret,
dgettext(TEXT_DOMAIN, "sync '%s' failed"), pool_name));
}
nvlist_free(innvl);
return (0);
}
static char *
devid_to_path(char *devid_str)
{
ddi_devid_t devid;
char *minor;
char *path;
devid_nmlist_t *list = NULL;
int ret;
if (devid_str_decode(devid_str, &devid, &minor) != 0)
return (NULL);
ret = devid_deviceid_to_nmlist("/dev", devid, minor, &list);
devid_str_free(minor);
devid_free(devid);
if (ret != 0)
return (NULL);
path = strdup(list[0].devname);
devid_free_nmlist(list);
return (path);
}
static char *
path_to_devid(const char *path)
{
int fd;
ddi_devid_t devid;
char *minor, *ret;
if ((fd = open(path, O_RDONLY)) < 0)
return (NULL);
minor = NULL;
ret = NULL;
if (devid_get(fd, &devid) == 0) {
if (devid_get_minor_name(fd, &minor) == 0)
ret = devid_str_encode(devid, minor);
if (minor != NULL)
devid_str_free(minor);
devid_free(devid);
}
(void) close(fd);
return (ret);
}
struct path_from_physpath_walker_args {
char *pfpwa_path;
};
static int
path_from_physpath_walker(di_devlink_t devlink, void *arg)
{
struct path_from_physpath_walker_args *pfpwa = arg;
if (di_devlink_type(devlink) != DI_PRIMARY_LINK) {
return (DI_WALK_CONTINUE);
}
verify(pfpwa->pfpwa_path == NULL);
if ((pfpwa->pfpwa_path = strdup(di_devlink_path(devlink))) != NULL) {
return (DI_WALK_TERMINATE);
}
return (DI_WALK_CONTINUE);
}
static char *
path_from_physpath(libzfs_handle_t *hdl, const char *path,
const char *physpath)
{
struct path_from_physpath_walker_args pfpwa;
if (physpath == NULL) {
return (NULL);
}
if (hdl->libzfs_devlink == NULL) {
if ((hdl->libzfs_devlink = di_devlink_init(NULL, 0)) ==
DI_LINK_NIL) {
return (NULL);
}
}
pfpwa.pfpwa_path = NULL;
(void) di_devlink_walk(hdl->libzfs_devlink, NULL, physpath,
DI_PRIMARY_LINK, &pfpwa, path_from_physpath_walker);
if (path != NULL && pfpwa.pfpwa_path != NULL &&
strcmp(path, pfpwa.pfpwa_path) == 0) {
free(pfpwa.pfpwa_path);
return (NULL);
}
return (pfpwa.pfpwa_path);
}
static void
set_path(zpool_handle_t *zhp, nvlist_t *nv, const char *path)
{
zfs_cmd_t zc = { 0 };
(void) strncpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name));
(void) strncpy(zc.zc_value, path, sizeof (zc.zc_value));
verify(nvlist_lookup_uint64(nv, ZPOOL_CONFIG_GUID,
&zc.zc_guid) == 0);
(void) ioctl(zhp->zpool_hdl->libzfs_fd, ZFS_IOC_VDEV_SETPATH, &zc);
}
void
zpool_vdev_refresh_path(libzfs_handle_t *hdl, zpool_handle_t *zhp, nvlist_t *nv)
{
char *path = NULL;
char *newpath = NULL;
char *physpath = NULL;
char *devid = NULL;
if (nvlist_lookup_string(nv, ZPOOL_CONFIG_PATH, &path) != 0) {
return;
}
if (nvlist_lookup_string(nv, ZPOOL_CONFIG_DEVID, &devid) == 0) {
char *newdevid = path_to_devid(path);
if (newdevid == NULL || strcmp(devid, newdevid) != 0) {
newpath = devid_to_path(devid);
}
if (newdevid != NULL) {
devid_str_free(newdevid);
}
} else if (nvlist_lookup_string(nv, ZPOOL_CONFIG_PHYS_PATH,
&physpath) == 0) {
newpath = path_from_physpath(hdl, path, physpath);
}
if (newpath == NULL) {
return;
}
set_path(zhp, nv, newpath);
fnvlist_add_string(nv, ZPOOL_CONFIG_PATH, newpath);
free(newpath);
}
char *
zpool_vdev_name(libzfs_handle_t *hdl, zpool_handle_t *zhp, nvlist_t *nv,
int name_flags)
{
char *path, *type, *env;
uint64_t value;
verify(nvlist_lookup_string(nv, ZPOOL_CONFIG_TYPE, &type) == 0);
if (zhp != NULL && strcmp(type, "root") == 0)
return (zfs_strdup(hdl, zpool_get_name(zhp)));
env = getenv("ZPOOL_VDEV_NAME_PATH");
if (env && (strtoul(env, NULL, 0) > 0 ||
!strncasecmp(env, "YES", 3) || !strncasecmp(env, "ON", 2)))
name_flags |= VDEV_NAME_PATH;
env = getenv("ZPOOL_VDEV_NAME_GUID");
if (env && (strtoul(env, NULL, 0) > 0 ||
!strncasecmp(env, "YES", 3) || !strncasecmp(env, "ON", 2)))
name_flags |= VDEV_NAME_GUID;
env = getenv("ZPOOL_VDEV_NAME_FOLLOW_LINKS");
if (env && (strtoul(env, NULL, 0) > 0 ||
!strncasecmp(env, "YES", 3) || !strncasecmp(env, "ON", 2)))
name_flags |= VDEV_NAME_FOLLOW_LINKS;
if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_NOT_PRESENT, &value) == 0 ||
name_flags & VDEV_NAME_GUID) {
nvlist_lookup_uint64(nv, ZPOOL_CONFIG_GUID, &value);
path = zfs_asprintf(hdl, "%llu", (u_longlong_t)value);
} else if (nvlist_lookup_string(nv, ZPOOL_CONFIG_PATH, &path) == 0) {
vdev_stat_t *vs;
uint_t vsc;
if (nvlist_lookup_uint64_array(nv, ZPOOL_CONFIG_VDEV_STATS,
(uint64_t **)&vs, &vsc) != 0 ||
vs->vs_state < VDEV_STATE_DEGRADED ||
zhp == NULL) {
path = zfs_strdup(hdl, path);
goto after_open;
}
zpool_vdev_refresh_path(hdl, zhp, nv);
path = fnvlist_lookup_string(nv, ZPOOL_CONFIG_PATH);
if (name_flags & VDEV_NAME_FOLLOW_LINKS) {
char *rp = realpath(path, NULL);
if (rp == NULL)
no_memory(hdl);
path = rp;
} else {
path = zfs_strdup(hdl, path);
}
after_open:
if (strncmp(path, ZFS_DISK_ROOTD,
sizeof (ZFS_DISK_ROOTD) - 1) == 0) {
const char *p2 = path + sizeof (ZFS_DISK_ROOTD) - 1;
memmove(path, p2, strlen(p2) + 1);
}
if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_WHOLE_DISK, &value)
== 0 && value && !(name_flags & VDEV_NAME_PATH)) {
int pathlen = strlen(path);
if (CTD_CHECK(path)) {
if (strcmp(&path[pathlen - 2], "s0") == 0 ||
strcmp(&path[pathlen - 2], "s1") == 0) {
path[pathlen - 2] = '\0';
} else if (pathlen > 6 &&
(strcmp(&path[pathlen - 6],
"s0/old") == 0 ||
strcmp(&path[pathlen - 6],
"s1/old") == 0)) {
(void) strcpy(&path[pathlen - 6],
"/old");
}
}
return (path);
}
} else {
if (strcmp(type, VDEV_TYPE_RAIDZ) == 0) {
verify(nvlist_lookup_uint64(nv, ZPOOL_CONFIG_NPARITY,
&value) == 0);
path = zfs_asprintf(hdl, "%s%llu", type,
(u_longlong_t)value);
} else {
path = zfs_strdup(hdl, type);
}
if (name_flags & VDEV_NAME_TYPE_ID) {
uint64_t id;
char *tmp;
verify(nvlist_lookup_uint64(nv, ZPOOL_CONFIG_ID,
&id) == 0);
tmp = zfs_asprintf(hdl, "%s-%llu", path,
(u_longlong_t)id);
free(path);
path = tmp;
}
}
return (path);
}
static int
zbookmark_mem_compare(const void *a, const void *b)
{
return (memcmp(a, b, sizeof (zbookmark_phys_t)));
}
int
zpool_get_errlog(zpool_handle_t *zhp, nvlist_t **nverrlistp)
{
zfs_cmd_t zc = { 0 };
uint64_t count;
zbookmark_phys_t *zb = NULL;
int i;
verify(nvlist_lookup_uint64(zhp->zpool_config, ZPOOL_CONFIG_ERRCOUNT,
&count) == 0);
if (count == 0)
return (0);
if ((zc.zc_nvlist_dst = (uintptr_t)zfs_alloc(zhp->zpool_hdl,
count * sizeof (zbookmark_phys_t))) == (uintptr_t)NULL)
return (-1);
zc.zc_nvlist_dst_size = count;
(void) strcpy(zc.zc_name, zhp->zpool_name);
for (;;) {
if (ioctl(zhp->zpool_hdl->libzfs_fd, ZFS_IOC_ERROR_LOG,
&zc) != 0) {
free((void *)(uintptr_t)zc.zc_nvlist_dst);
if (errno == ENOMEM) {
void *dst;
count = zc.zc_nvlist_dst_size;
dst = zfs_alloc(zhp->zpool_hdl, count *
sizeof (zbookmark_phys_t));
if (dst == NULL)
return (-1);
zc.zc_nvlist_dst = (uintptr_t)dst;
} else {
return (-1);
}
} else {
break;
}
}
zb = ((zbookmark_phys_t *)(uintptr_t)zc.zc_nvlist_dst) +
zc.zc_nvlist_dst_size;
count -= zc.zc_nvlist_dst_size;
qsort(zb, count, sizeof (zbookmark_phys_t), zbookmark_mem_compare);
verify(nvlist_alloc(nverrlistp, 0, KM_SLEEP) == 0);
for (i = 0; i < count; i++) {
nvlist_t *nv;
if (i > 0 && zb[i-1].zb_objset == zb[i].zb_objset &&
zb[i-1].zb_object == zb[i].zb_object)
continue;
if (nvlist_alloc(&nv, NV_UNIQUE_NAME, KM_SLEEP) != 0)
goto nomem;
if (nvlist_add_uint64(nv, ZPOOL_ERR_DATASET,
zb[i].zb_objset) != 0) {
nvlist_free(nv);
goto nomem;
}
if (nvlist_add_uint64(nv, ZPOOL_ERR_OBJECT,
zb[i].zb_object) != 0) {
nvlist_free(nv);
goto nomem;
}
if (nvlist_add_nvlist(*nverrlistp, "ejk", nv) != 0) {
nvlist_free(nv);
goto nomem;
}
nvlist_free(nv);
}
free((void *)(uintptr_t)zc.zc_nvlist_dst);
return (0);
nomem:
free((void *)(uintptr_t)zc.zc_nvlist_dst);
return (no_memory(zhp->zpool_hdl));
}
int
zpool_upgrade(zpool_handle_t *zhp, uint64_t new_version)
{
zfs_cmd_t zc = { 0 };
libzfs_handle_t *hdl = zhp->zpool_hdl;
(void) strcpy(zc.zc_name, zhp->zpool_name);
zc.zc_cookie = new_version;
if (zfs_ioctl(hdl, ZFS_IOC_POOL_UPGRADE, &zc) != 0)
return (zpool_standard_error_fmt(hdl, errno,
dgettext(TEXT_DOMAIN, "cannot upgrade '%s'"),
zhp->zpool_name));
return (0);
}
void
zfs_save_arguments(int argc, char **argv, char *string, int len)
{
(void) strlcpy(string, basename(argv[0]), len);
for (int i = 1; i < argc; i++) {
(void) strlcat(string, " ", len);
(void) strlcat(string, argv[i], len);
}
}
int
zpool_log_history(libzfs_handle_t *hdl, const char *message)
{
zfs_cmd_t zc = { 0 };
nvlist_t *args;
int err;
args = fnvlist_alloc();
fnvlist_add_string(args, "message", message);
err = zcmd_write_src_nvlist(hdl, &zc, args);
if (err == 0)
err = ioctl(hdl->libzfs_fd, ZFS_IOC_LOG_HISTORY, &zc);
nvlist_free(args);
zcmd_free_nvlists(&zc);
return (err);
}
static int
get_history(zpool_handle_t *zhp, char *buf, uint64_t *off, uint64_t *len)
{
zfs_cmd_t zc = { 0 };
libzfs_handle_t *hdl = zhp->zpool_hdl;
(void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name));
zc.zc_history = (uint64_t)(uintptr_t)buf;
zc.zc_history_len = *len;
zc.zc_history_offset = *off;
if (ioctl(hdl->libzfs_fd, ZFS_IOC_POOL_GET_HISTORY, &zc) != 0) {
switch (errno) {
case EPERM:
return (zfs_error_fmt(hdl, EZFS_PERM,
dgettext(TEXT_DOMAIN,
"cannot show history for pool '%s'"),
zhp->zpool_name));
case ENOENT:
return (zfs_error_fmt(hdl, EZFS_NOHISTORY,
dgettext(TEXT_DOMAIN, "cannot get history for pool "
"'%s'"), zhp->zpool_name));
case ENOTSUP:
return (zfs_error_fmt(hdl, EZFS_BADVERSION,
dgettext(TEXT_DOMAIN, "cannot get history for pool "
"'%s', pool must be upgraded"), zhp->zpool_name));
default:
return (zpool_standard_error_fmt(hdl, errno,
dgettext(TEXT_DOMAIN,
"cannot get history for '%s'"), zhp->zpool_name));
}
}
*len = zc.zc_history_len;
*off = zc.zc_history_offset;
return (0);
}
int
zpool_get_history(zpool_handle_t *zhp, nvlist_t **nvhisp, uint64_t *off,
boolean_t *eof)
{
char *buf;
int buflen = 128 * 1024;
nvlist_t **records = NULL;
uint_t numrecords = 0;
int err = 0, i;
uint64_t start = *off;
buf = malloc(buflen);
if (buf == NULL)
return (ENOMEM);
while (*off - start < 1024 * 1024) {
uint64_t bytes_read = buflen;
uint64_t leftover;
if ((err = get_history(zhp, buf, off, &bytes_read)) != 0)
break;
if (!bytes_read) {
*eof = B_TRUE;
break;
}
if ((err = zpool_history_unpack(buf, bytes_read,
&leftover, &records, &numrecords)) != 0)
break;
*off -= leftover;
if (leftover == bytes_read) {
buflen *= 2;
free(buf);
buf = malloc(buflen);
if (buf == NULL)
return (ENOMEM);
}
}
free(buf);
if (!err) {
verify(nvlist_alloc(nvhisp, NV_UNIQUE_NAME, 0) == 0);
verify(nvlist_add_nvlist_array(*nvhisp, ZPOOL_HIST_RECORD,
records, numrecords) == 0);
}
for (i = 0; i < numrecords; i++)
nvlist_free(records[i]);
free(records);
return (err);
}
void
zpool_obj_to_path(zpool_handle_t *zhp, uint64_t dsobj, uint64_t obj,
char *pathname, size_t len)
{
zfs_cmd_t zc = { 0 };
boolean_t mounted = B_FALSE;
char *mntpnt = NULL;
char dsname[ZFS_MAX_DATASET_NAME_LEN];
if (dsobj == 0) {
(void) snprintf(pathname, len, "<metadata>:<0x%llx>", obj);
return;
}
(void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name));
zc.zc_obj = dsobj;
if (ioctl(zhp->zpool_hdl->libzfs_fd,
ZFS_IOC_DSOBJ_TO_DSNAME, &zc) != 0) {
(void) snprintf(pathname, len, "<0x%llx>:<0x%llx>",
dsobj, obj);
return;
}
(void) strlcpy(dsname, zc.zc_value, sizeof (dsname));
mounted = is_mounted(zhp->zpool_hdl, dsname, &mntpnt);
(void) strlcpy(zc.zc_name, dsname, sizeof (zc.zc_name));
zc.zc_obj = obj;
if (ioctl(zhp->zpool_hdl->libzfs_fd, ZFS_IOC_OBJ_TO_PATH,
&zc) == 0) {
if (mounted) {
(void) snprintf(pathname, len, "%s%s", mntpnt,
zc.zc_value);
} else {
(void) snprintf(pathname, len, "%s:%s",
dsname, zc.zc_value);
}
} else {
(void) snprintf(pathname, len, "%s:<0x%llx>", dsname, obj);
}
free(mntpnt);
}
int
zpool_set_bootenv(zpool_handle_t *zhp, const nvlist_t *envmap)
{
int error = lzc_set_bootenv(zhp->zpool_name, envmap);
if (error != 0) {
(void) zpool_standard_error_fmt(zhp->zpool_hdl, error,
dgettext(TEXT_DOMAIN,
"error setting bootenv in pool '%s'"), zhp->zpool_name);
}
return (error);
}
int
zpool_get_bootenv(zpool_handle_t *zhp, nvlist_t **nvlp)
{
nvlist_t *nvl;
int error;
nvl = NULL;
error = lzc_get_bootenv(zhp->zpool_name, &nvl);
if (error != 0) {
(void) zpool_standard_error_fmt(zhp->zpool_hdl, error,
dgettext(TEXT_DOMAIN,
"error getting bootenv in pool '%s'"), zhp->zpool_name);
} else {
*nvlp = nvl;
}
return (error);
}
static int
read_efi_label(nvlist_t *config, diskaddr_t *sb, boolean_t *system)
{
char *path;
int fd;
char diskname[MAXPATHLEN];
boolean_t boot = B_FALSE;
int err = -1;
int slice;
if (nvlist_lookup_string(config, ZPOOL_CONFIG_PATH, &path) != 0)
return (err);
(void) snprintf(diskname, sizeof (diskname), "%s%s", ZFS_RDISK_ROOT,
strrchr(path, '/'));
if ((fd = open(diskname, O_RDONLY|O_NDELAY)) >= 0) {
struct dk_gpt *vtoc;
if ((err = efi_alloc_and_read(fd, &vtoc)) >= 0) {
for (slice = 0; slice < vtoc->efi_nparts; slice++) {
if (vtoc->efi_parts[slice].p_tag == V_SYSTEM)
boot = B_TRUE;
if (vtoc->efi_parts[slice].p_tag == V_USR)
break;
}
if (sb != NULL && vtoc->efi_parts[slice].p_tag == V_USR)
*sb = vtoc->efi_parts[slice].p_start;
if (system != NULL)
*system = boot;
efi_free(vtoc);
}
(void) close(fd);
}
return (err);
}
static diskaddr_t
find_start_block(nvlist_t *config)
{
nvlist_t **child;
uint_t c, children;
diskaddr_t sb = MAXOFFSET_T;
uint64_t wholedisk;
if (nvlist_lookup_nvlist_array(config,
ZPOOL_CONFIG_CHILDREN, &child, &children) != 0) {
if (nvlist_lookup_uint64(config,
ZPOOL_CONFIG_WHOLE_DISK,
&wholedisk) != 0 || !wholedisk) {
return (MAXOFFSET_T);
}
if (read_efi_label(config, &sb, NULL) < 0)
sb = MAXOFFSET_T;
return (sb);
}
for (c = 0; c < children; c++) {
sb = find_start_block(child[c]);
if (sb != MAXOFFSET_T) {
return (sb);
}
}
return (MAXOFFSET_T);
}
int
zpool_label_disk(libzfs_handle_t *hdl, zpool_handle_t *zhp, const char *name,
zpool_boot_label_t boot_type, uint64_t boot_size, int *slice)
{
char path[MAXPATHLEN];
struct dk_gpt *vtoc;
int fd;
size_t resv;
uint64_t slice_size;
diskaddr_t start_block;
char errbuf[1024];
(void) snprintf(errbuf, sizeof (errbuf),
dgettext(TEXT_DOMAIN, "cannot label '%s'"), name);
if (zhp) {
nvlist_t *nvroot;
verify(nvlist_lookup_nvlist(zhp->zpool_config,
ZPOOL_CONFIG_VDEV_TREE, &nvroot) == 0);
if (zhp->zpool_start_block == 0)
start_block = find_start_block(nvroot);
else
start_block = zhp->zpool_start_block;
zhp->zpool_start_block = start_block;
} else {
start_block = NEW_START_BLOCK;
}
(void) snprintf(path, sizeof (path), "%s/%s%s", ZFS_RDISK_ROOT, name,
BACKUP_SLICE);
if ((fd = open(path, O_RDWR | O_NDELAY)) < 0) {
zfs_error_aux(hdl,
dgettext(TEXT_DOMAIN, "unable to open device"));
return (zfs_error(hdl, EZFS_OPENFAILED, errbuf));
}
if (efi_alloc_and_init(fd, EFI_NUMPAR, &vtoc) != 0) {
if (errno == ENOMEM)
(void) no_memory(hdl);
(void) close(fd);
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"unable to read disk capacity"), name);
return (zfs_error(hdl, EZFS_NOCAP, errbuf));
}
resv = efi_reserved_sectors(vtoc);
if (start_block == MAXOFFSET_T)
start_block = NEW_START_BLOCK;
if (boot_type == ZPOOL_CREATE_BOOT_LABEL) {
if (boot_size % vtoc->efi_lbasize != 0) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"boot partition size must be a multiple of %d"),
vtoc->efi_lbasize);
(void) close(fd);
efi_free(vtoc);
return (zfs_error(hdl, EZFS_LABELFAILED, errbuf));
}
if (boot_size < 1024 * 1024) {
char buf[64];
zfs_nicenum(boot_size, buf, sizeof (buf));
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"Specified size %s for EFI System partition is too "
"small, the minimum size is 1MB."), buf);
(void) close(fd);
efi_free(vtoc);
return (zfs_error(hdl, EZFS_LABELFAILED, errbuf));
}
if (hdl->libzfs_printerr &&
((vtoc->efi_lbasize == 512 &&
boot_size < 33 * 1024 * 1024) ||
(vtoc->efi_lbasize == 4096 &&
boot_size < 256 * 1024 * 1024))) {
char buf[64];
zfs_nicenum(boot_size, buf, sizeof (buf));
(void) fprintf(stderr, dgettext(TEXT_DOMAIN,
"Warning: EFI System partition size %s is "
"not allowing to create FAT32 file\nsystem, which "
"may result in unbootable system.\n"), buf);
}
start_block += boot_size / vtoc->efi_lbasize;
}
if (start_block == NEW_START_BLOCK) {
slice_size = vtoc->efi_last_u_lba + 1;
slice_size -= resv;
slice_size -= start_block;
if (slice != NULL)
*slice = 0;
vtoc->efi_parts[0].p_start = start_block;
vtoc->efi_parts[0].p_size = slice_size;
vtoc->efi_parts[0].p_tag = V_USR;
(void) strcpy(vtoc->efi_parts[0].p_name, "zfs");
vtoc->efi_parts[8].p_start = slice_size + start_block;
vtoc->efi_parts[8].p_size = resv;
vtoc->efi_parts[8].p_tag = V_RESERVED;
} else {
slice_size = start_block - NEW_START_BLOCK;
vtoc->efi_parts[0].p_start = NEW_START_BLOCK;
vtoc->efi_parts[0].p_size = slice_size;
vtoc->efi_parts[0].p_tag = V_SYSTEM;
(void) strcpy(vtoc->efi_parts[0].p_name, "loader");
if (slice != NULL)
*slice = 1;
slice_size = vtoc->efi_last_u_lba + 1 - slice_size;
slice_size -= resv;
slice_size -= NEW_START_BLOCK;
vtoc->efi_parts[1].p_start = start_block;
vtoc->efi_parts[1].p_size = slice_size;
vtoc->efi_parts[1].p_tag = V_USR;
(void) strcpy(vtoc->efi_parts[1].p_name, "zfs");
vtoc->efi_parts[8].p_start = slice_size + start_block;
vtoc->efi_parts[8].p_size = resv;
vtoc->efi_parts[8].p_tag = V_RESERVED;
}
if (efi_write(fd, vtoc) != 0) {
(void) close(fd);
efi_free(vtoc);
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"try using fdisk(8) and then provide a specific slice"));
return (zfs_error(hdl, EZFS_LABELFAILED, errbuf));
}
(void) close(fd);
efi_free(vtoc);
return (0);
}
static boolean_t
supported_dump_vdev_type(libzfs_handle_t *hdl, nvlist_t *config, char *errbuf)
{
char *type;
nvlist_t **child;
uint_t children, c;
verify(nvlist_lookup_string(config, ZPOOL_CONFIG_TYPE, &type) == 0);
if (strcmp(type, VDEV_TYPE_FILE) == 0 ||
strcmp(type, VDEV_TYPE_HOLE) == 0 ||
strcmp(type, VDEV_TYPE_MISSING) == 0) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"vdev type '%s' is not supported"), type);
(void) zfs_error(hdl, EZFS_VDEVNOTSUP, errbuf);
return (B_FALSE);
}
if (nvlist_lookup_nvlist_array(config, ZPOOL_CONFIG_CHILDREN,
&child, &children) == 0) {
for (c = 0; c < children; c++) {
if (!supported_dump_vdev_type(hdl, child[c], errbuf))
return (B_FALSE);
}
}
return (B_TRUE);
}
int
zvol_check_dump_config(char *arg)
{
zpool_handle_t *zhp = NULL;
nvlist_t *config, *nvroot;
char *p, *volname;
nvlist_t **top;
uint_t toplevels;
libzfs_handle_t *hdl;
char errbuf[1024];
char poolname[ZFS_MAX_DATASET_NAME_LEN];
int pathlen = strlen(ZVOL_FULL_DEV_DIR);
int ret = 1;
if (strncmp(arg, ZVOL_FULL_DEV_DIR, pathlen)) {
return (-1);
}
(void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN,
"dump is not supported on device '%s'"), arg);
if ((hdl = libzfs_init()) == NULL)
return (1);
libzfs_print_on_error(hdl, B_TRUE);
volname = arg + pathlen;
if ((p = strchr(volname, '/')) == NULL) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"malformed dataset name"));
(void) zfs_error(hdl, EZFS_INVALIDNAME, errbuf);
return (1);
} else if (p - volname >= ZFS_MAX_DATASET_NAME_LEN) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"dataset name is too long"));
(void) zfs_error(hdl, EZFS_NAMETOOLONG, errbuf);
return (1);
} else {
(void) strncpy(poolname, volname, p - volname);
poolname[p - volname] = '\0';
}
if ((zhp = zpool_open(hdl, poolname)) == NULL) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"could not open pool '%s'"), poolname);
(void) zfs_error(hdl, EZFS_OPENFAILED, errbuf);
goto out;
}
config = zpool_get_config(zhp, NULL);
if (nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
&nvroot) != 0) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"could not obtain vdev configuration for '%s'"), poolname);
(void) zfs_error(hdl, EZFS_INVALCONFIG, errbuf);
goto out;
}
verify(nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_CHILDREN,
&top, &toplevels) == 0);
if (!supported_dump_vdev_type(hdl, top[0], errbuf)) {
goto out;
}
ret = 0;
out:
if (zhp)
zpool_close(zhp);
libzfs_fini(hdl);
return (ret);
}
