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Diffstat (limited to 'usr/src/uts/common/fs/zfs/zfs_ioctl.c')
-rw-r--r--usr/src/uts/common/fs/zfs/zfs_ioctl.c271
1 files changed, 238 insertions, 33 deletions
diff --git a/usr/src/uts/common/fs/zfs/zfs_ioctl.c b/usr/src/uts/common/fs/zfs/zfs_ioctl.c
index 712abee22f..71018c3836 100644
--- a/usr/src/uts/common/fs/zfs/zfs_ioctl.c
+++ b/usr/src/uts/common/fs/zfs/zfs_ioctl.c
@@ -32,7 +32,7 @@
* Copyright (c) 2014 Integros [integros.com]
* Copyright 2016 Toomas Soome <tsoome@me.com>
* Copyright 2017 RackTop Systems.
- * Copyright (c) 2017 Datto Inc.
+ * Copyright (c) 2017, Datto, Inc. All rights reserved.
*/
/*
@@ -192,6 +192,7 @@
#include <sys/vdev_removal.h>
#include <sys/vdev_impl.h>
#include <sys/vdev_initialize.h>
+#include <sys/dsl_crypt.h>
#include "zfs_namecheck.h"
#include "zfs_prop.h"
@@ -593,12 +594,12 @@ zfs_set_slabel_policy(const char *name, char *strval, cred_t *cr)
* Try to own the dataset; abort if there is any error,
* (e.g., already mounted, in use, or other error).
*/
- error = dmu_objset_own(name, DMU_OST_ZFS, B_TRUE,
+ error = dmu_objset_own(name, DMU_OST_ZFS, B_TRUE, B_TRUE,
setsl_tag, &os);
if (error != 0)
return (SET_ERROR(EPERM));
- dmu_objset_disown(os, setsl_tag);
+ dmu_objset_disown(os, B_TRUE, setsl_tag);
if (new_default) {
needed_priv = PRIV_FILE_DOWNGRADE_SL;
@@ -1285,6 +1286,22 @@ zfs_secpolicy_release(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
return (0);
}
+/* ARGSUSED */
+static int
+zfs_secpolicy_load_key(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
+{
+ return (zfs_secpolicy_write_perms(zc->zc_name,
+ ZFS_DELEG_PERM_LOAD_KEY, cr));
+}
+
+/* ARGSUSED */
+static int
+zfs_secpolicy_change_key(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
+{
+ return (zfs_secpolicy_write_perms(zc->zc_name,
+ ZFS_DELEG_PERM_CHANGE_KEY, cr));
+}
+
/*
* Policy for allowing temporary snapshots to be taken or released
*/
@@ -1481,7 +1498,7 @@ zfsvfs_rele(zfsvfs_t *zfsvfs, void *tag)
if (zfsvfs->z_vfs) {
VFS_RELE(zfsvfs->z_vfs);
} else {
- dmu_objset_disown(zfsvfs->z_os, zfsvfs);
+ dmu_objset_disown(zfsvfs->z_os, B_TRUE, zfsvfs);
zfsvfs_free(zfsvfs);
}
}
@@ -1494,6 +1511,7 @@ zfs_ioc_pool_create(zfs_cmd_t *zc)
nvlist_t *rootprops = NULL;
nvlist_t *zplprops = NULL;
char *spa_name = zc->zc_name;
+ dsl_crypto_params_t *dcp = NULL;
if (error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
zc->zc_iflags, &config))
@@ -1508,6 +1526,7 @@ zfs_ioc_pool_create(zfs_cmd_t *zc)
if (props) {
nvlist_t *nvl = NULL;
+ nvlist_t *hidden_args = NULL;
uint64_t version = SPA_VERSION;
char *tname;
@@ -1527,6 +1546,18 @@ zfs_ioc_pool_create(zfs_cmd_t *zc)
}
(void) nvlist_remove_all(props, ZPOOL_ROOTFS_PROPS);
}
+
+ (void) nvlist_lookup_nvlist(props, ZPOOL_HIDDEN_ARGS,
+ &hidden_args);
+ error = dsl_crypto_params_create_nvlist(DCP_CMD_NONE,
+ rootprops, hidden_args, &dcp);
+ if (error != 0) {
+ nvlist_free(config);
+ nvlist_free(props);
+ return (error);
+ }
+ (void) nvlist_remove_all(props, ZPOOL_HIDDEN_ARGS);
+
VERIFY(nvlist_alloc(&zplprops, NV_UNIQUE_NAME, KM_SLEEP) == 0);
error = zfs_fill_zplprops_root(version, rootprops,
zplprops, NULL);
@@ -1538,7 +1569,7 @@ zfs_ioc_pool_create(zfs_cmd_t *zc)
spa_name = tname;
}
- error = spa_create(zc->zc_name, config, props, zplprops);
+ error = spa_create(zc->zc_name, config, props, zplprops, dcp);
/*
* Set the remaining root properties
@@ -1552,6 +1583,7 @@ pool_props_bad:
nvlist_free(zplprops);
nvlist_free(config);
nvlist_free(props);
+ dsl_crypto_params_free(dcp, !!error);
return (error);
}
@@ -1830,15 +1862,16 @@ zfs_ioc_obj_to_path(zfs_cmd_t *zc)
int error;
/* XXX reading from objset not owned */
- if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os)) != 0)
+ if ((error = dmu_objset_hold_flags(zc->zc_name, B_TRUE,
+ FTAG, &os)) != 0)
return (error);
if (dmu_objset_type(os) != DMU_OST_ZFS) {
- dmu_objset_rele(os, FTAG);
+ dmu_objset_rele_flags(os, B_TRUE, FTAG);
return (SET_ERROR(EINVAL));
}
error = zfs_obj_to_path(os, zc->zc_obj, zc->zc_value,
sizeof (zc->zc_value));
- dmu_objset_rele(os, FTAG);
+ dmu_objset_rele_flags(os, B_TRUE, FTAG);
return (error);
}
@@ -1859,15 +1892,16 @@ zfs_ioc_obj_to_stats(zfs_cmd_t *zc)
int error;
/* XXX reading from objset not owned */
- if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os)) != 0)
+ if ((error = dmu_objset_hold_flags(zc->zc_name, B_TRUE,
+ FTAG, &os)) != 0)
return (error);
if (dmu_objset_type(os) != DMU_OST_ZFS) {
- dmu_objset_rele(os, FTAG);
+ dmu_objset_rele_flags(os, B_TRUE, FTAG);
return (SET_ERROR(EINVAL));
}
error = zfs_obj_to_stats(os, zc->zc_obj, &zc->zc_stat, zc->zc_value,
sizeof (zc->zc_value));
- dmu_objset_rele(os, FTAG);
+ dmu_objset_rele_flags(os, B_TRUE, FTAG);
return (error);
}
@@ -2437,7 +2471,8 @@ zfs_prop_set_special(const char *dsname, zprop_source_t source,
{
const char *propname = nvpair_name(pair);
zfs_prop_t prop = zfs_name_to_prop(propname);
- uint64_t intval;
+ uint64_t intval = 0;
+ char *strval = NULL;
int err = -1;
if (prop == ZPROP_INVAL) {
@@ -2453,10 +2488,12 @@ zfs_prop_set_special(const char *dsname, zprop_source_t source,
&pair) == 0);
}
- if (zfs_prop_get_type(prop) == PROP_TYPE_STRING)
- return (-1);
-
- VERIFY(0 == nvpair_value_uint64(pair, &intval));
+ /* all special properties are numeric except for keylocation */
+ if (zfs_prop_get_type(prop) == PROP_TYPE_STRING) {
+ strval = fnvpair_value_string(pair);
+ } else {
+ intval = fnvpair_value_uint64(pair);
+ }
switch (prop) {
case ZFS_PROP_QUOTA:
@@ -2480,6 +2517,16 @@ zfs_prop_set_special(const char *dsname, zprop_source_t source,
if (err == 0)
err = -1;
break;
+ case ZFS_PROP_KEYLOCATION:
+ err = dsl_crypto_can_set_keylocation(dsname, strval);
+
+ /*
+ * Set err to -1 to force the zfs_set_prop_nvlist code down the
+ * default path to set the value in the nvlist.
+ */
+ if (err == 0)
+ err = -1;
+ break;
case ZFS_PROP_RESERVATION:
err = dsl_dir_set_reservation(dsname, source, intval);
break;
@@ -3183,6 +3230,8 @@ zfs_fill_zplprops_root(uint64_t spa_vers, nvlist_t *createprops,
* innvl: {
* "type" -> dmu_objset_type_t (int32)
* (optional) "props" -> { prop -> value }
+ * (optional) "hidden_args" -> { "wkeydata" -> value }
+ * raw uint8_t array of encryption wrapping key data (32 bytes)
* }
*
* outnvl: propname -> error code (int32)
@@ -3193,15 +3242,18 @@ zfs_ioc_create(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl)
int error = 0;
zfs_creat_t zct = { 0 };
nvlist_t *nvprops = NULL;
+ nvlist_t *hidden_args = NULL;
void (*cbfunc)(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx);
int32_t type32;
dmu_objset_type_t type;
boolean_t is_insensitive = B_FALSE;
+ dsl_crypto_params_t *dcp = NULL;
if (nvlist_lookup_int32(innvl, "type", &type32) != 0)
return (SET_ERROR(EINVAL));
type = type32;
(void) nvlist_lookup_nvlist(innvl, "props", &nvprops);
+ (void) nvlist_lookup_nvlist(innvl, ZPOOL_HIDDEN_ARGS, &hidden_args);
switch (type) {
case DMU_OST_ZFS:
@@ -3267,9 +3319,18 @@ zfs_ioc_create(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl)
}
}
+ error = dsl_crypto_params_create_nvlist(DCP_CMD_NONE, nvprops,
+ hidden_args, &dcp);
+ if (error != 0) {
+ nvlist_free(zct.zct_zplprops);
+ return (error);
+ }
+
error = dmu_objset_create(fsname, type,
- is_insensitive ? DS_FLAG_CI_DATASET : 0, cbfunc, &zct);
+ is_insensitive ? DS_FLAG_CI_DATASET : 0, dcp, cbfunc, &zct);
+
nvlist_free(zct.zct_zplprops);
+ dsl_crypto_params_free(dcp, !!error);
/*
* It would be nice to do this atomically.
@@ -3287,6 +3348,8 @@ zfs_ioc_create(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl)
* innvl: {
* "origin" -> name of origin snapshot
* (optional) "props" -> { prop -> value }
+ * (optional) "hidden_args" -> { "wkeydata" -> value }
+ * raw uint8_t array of encryption wrapping key data (32 bytes)
* }
*
* outnvl: propname -> error code (int32)
@@ -3308,9 +3371,8 @@ zfs_ioc_clone(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl)
if (dataset_namecheck(origin_name, NULL, NULL) != 0)
return (SET_ERROR(EINVAL));
+
error = dmu_objset_clone(fsname, origin_name);
- if (error != 0)
- return (error);
/*
* It would be nice to do this atomically.
@@ -4328,7 +4390,11 @@ extract_delay_props(nvlist_t *props)
{
nvlist_t *delayprops;
nvpair_t *nvp, *tmp;
- static const zfs_prop_t delayable[] = { ZFS_PROP_REFQUOTA, 0 };
+ static const zfs_prop_t delayable[] = {
+ ZFS_PROP_REFQUOTA,
+ ZFS_PROP_KEYLOCATION,
+ 0
+ };
int i;
VERIFY(nvlist_alloc(&delayprops, NV_UNIQUE_NAME, KM_SLEEP) == 0);
@@ -4517,7 +4583,7 @@ zfs_ioc_recv(zfs_cmd_t *zc)
}
}
- if (delayprops != NULL) {
+ if (delayprops != NULL && props != NULL) {
/*
* Merge delayed props back in with initial props, in case
* we're DEBUG and zfs_ioc_recv_inject_err is set (which means
@@ -4627,6 +4693,7 @@ zfs_ioc_send(zfs_cmd_t *zc)
boolean_t embedok = (zc->zc_flags & 0x1);
boolean_t large_block_ok = (zc->zc_flags & 0x2);
boolean_t compressok = (zc->zc_flags & 0x4);
+ boolean_t rawok = (zc->zc_flags & 0x8);
if (zc->zc_obj != 0) {
dsl_pool_t *dp;
@@ -4658,7 +4725,8 @@ zfs_ioc_send(zfs_cmd_t *zc)
if (error != 0)
return (error);
- error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &tosnap);
+ error = dsl_dataset_hold_obj(dp, zc->zc_sendobj,
+ FTAG, &tosnap);
if (error != 0) {
dsl_pool_rele(dp, FTAG);
return (error);
@@ -4674,7 +4742,7 @@ zfs_ioc_send(zfs_cmd_t *zc)
}
}
- error = dmu_send_estimate(tosnap, fromsnap, compressok,
+ error = dmu_send_estimate(tosnap, fromsnap, compressok || rawok,
&zc->zc_objset_type);
if (fromsnap != NULL)
@@ -4688,7 +4756,7 @@ zfs_ioc_send(zfs_cmd_t *zc)
off = fp->f_offset;
error = dmu_send_obj(zc->zc_name, zc->zc_sendobj,
- zc->zc_fromobj, embedok, large_block_ok, compressok,
+ zc->zc_fromobj, embedok, large_block_ok, compressok, rawok,
zc->zc_cookie, fp->f_vnode, &off);
if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0)
@@ -5078,7 +5146,7 @@ zfs_ioc_userspace_upgrade(zfs_cmd_t *zc)
error = zfs_suspend_fs(zfsvfs);
if (error == 0) {
dmu_objset_refresh_ownership(ds, &newds,
- zfsvfs);
+ B_TRUE, zfsvfs);
error = zfs_resume_fs(zfsvfs, newds);
}
}
@@ -5087,12 +5155,12 @@ zfs_ioc_userspace_upgrade(zfs_cmd_t *zc)
VFS_RELE(zfsvfs->z_vfs);
} else {
/* XXX kind of reading contents without owning */
- error = dmu_objset_hold(zc->zc_name, FTAG, &os);
+ error = dmu_objset_hold_flags(zc->zc_name, B_TRUE, FTAG, &os);
if (error != 0)
return (error);
error = dmu_objset_userspace_upgrade(os);
- dmu_objset_rele(os, FTAG);
+ dmu_objset_rele_flags(os, B_TRUE, FTAG);
}
return (error);
@@ -5250,7 +5318,7 @@ zfs_ioc_next_obj(zfs_cmd_t *zc)
objset_t *os = NULL;
int error;
- error = dmu_objset_hold(zc->zc_name, FTAG, &os);
+ error = dmu_objset_hold_flags(zc->zc_name, B_TRUE, FTAG, &os);
if (error != 0)
return (error);
@@ -5668,6 +5736,8 @@ zfs_ioc_space_snaps(const char *lastsnap, nvlist_t *innvl, nvlist_t *outnvl)
* presence indicates DRR_WRITE_EMBEDDED records are permitted
* (optional) "compressok" -> (value ignored)
* presence indicates compressed DRR_WRITE records are permitted
+ * (optional) "rawok" -> (value ignored)
+ * presence indicates raw encrypted records should be used.
* (optional) "resume_object" and "resume_offset" -> (uint64)
* if present, resume send stream from specified object and offset.
* }
@@ -5685,6 +5755,7 @@ zfs_ioc_send_new(const char *snapname, nvlist_t *innvl, nvlist_t *outnvl)
boolean_t largeblockok;
boolean_t embedok;
boolean_t compressok;
+ boolean_t rawok;
uint64_t resumeobj = 0;
uint64_t resumeoff = 0;
@@ -5697,6 +5768,7 @@ zfs_ioc_send_new(const char *snapname, nvlist_t *innvl, nvlist_t *outnvl)
largeblockok = nvlist_exists(innvl, "largeblockok");
embedok = nvlist_exists(innvl, "embedok");
compressok = nvlist_exists(innvl, "compressok");
+ rawok = nvlist_exists(innvl, "rawok");
(void) nvlist_lookup_uint64(innvl, "resume_object", &resumeobj);
(void) nvlist_lookup_uint64(innvl, "resume_offset", &resumeoff);
@@ -5707,7 +5779,7 @@ zfs_ioc_send_new(const char *snapname, nvlist_t *innvl, nvlist_t *outnvl)
off = fp->f_offset;
error = dmu_send(snapname, fromname, embedok, largeblockok, compressok,
- fd, resumeobj, resumeoff, fp->f_vnode, &off);
+ rawok, fd, resumeobj, resumeoff, fp->f_vnode, &off);
if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0)
fp->f_offset = off;
@@ -5742,6 +5814,7 @@ zfs_ioc_send_space(const char *snapname, nvlist_t *innvl, nvlist_t *outnvl)
int error;
char *fromname;
boolean_t compressok;
+ boolean_t rawok;
uint64_t space;
error = dsl_pool_hold(snapname, FTAG, &dp);
@@ -5755,6 +5828,7 @@ zfs_ioc_send_space(const char *snapname, nvlist_t *innvl, nvlist_t *outnvl)
}
compressok = nvlist_exists(innvl, "compressok");
+ rawok = nvlist_exists(innvl, "rawok");
error = nvlist_lookup_string(innvl, "from", &fromname);
if (error == 0) {
@@ -5768,8 +5842,8 @@ zfs_ioc_send_space(const char *snapname, nvlist_t *innvl, nvlist_t *outnvl)
error = dsl_dataset_hold(dp, fromname, FTAG, &fromsnap);
if (error != 0)
goto out;
- error = dmu_send_estimate(tosnap, fromsnap, compressok,
- &space);
+ error = dmu_send_estimate(tosnap, fromsnap,
+ compressok || rawok, &space);
dsl_dataset_rele(fromsnap, FTAG);
} else if (strchr(fromname, '#') != NULL) {
/*
@@ -5784,7 +5858,8 @@ zfs_ioc_send_space(const char *snapname, nvlist_t *innvl, nvlist_t *outnvl)
if (error != 0)
goto out;
error = dmu_send_estimate_from_txg(tosnap,
- frombm.zbm_creation_txg, compressok, &space);
+ frombm.zbm_creation_txg, compressok || rawok,
+ &space);
} else {
/*
* from is not properly formatted as a snapshot or
@@ -5797,7 +5872,8 @@ zfs_ioc_send_space(const char *snapname, nvlist_t *innvl, nvlist_t *outnvl)
/*
* If estimating the size of a full send, use dmu_send_estimate.
*/
- error = dmu_send_estimate(tosnap, NULL, compressok, &space);
+ error = dmu_send_estimate(tosnap, NULL, compressok || rawok,
+ &space);
}
fnvlist_add_uint64(outnvl, "space", space);
@@ -5846,6 +5922,124 @@ zfs_ioc_pool_sync(const char *pool, nvlist_t *innvl, nvlist_t *onvl)
return (err);
}
+/*
+ * Load a user's wrapping key into the kernel.
+ * innvl: {
+ * "hidden_args" -> { "wkeydata" -> value }
+ * raw uint8_t array of encryption wrapping key data (32 bytes)
+ * (optional) "noop" -> (value ignored)
+ * presence indicated key should only be verified, not loaded
+ * }
+ */
+/* ARGSUSED */
+static int
+zfs_ioc_load_key(const char *dsname, nvlist_t *innvl, nvlist_t *outnvl)
+{
+ int ret = 0;
+ dsl_crypto_params_t *dcp = NULL;
+ nvlist_t *hidden_args;
+ boolean_t noop = nvlist_exists(innvl, "noop");
+
+ if (strchr(dsname, '@') != NULL || strchr(dsname, '%') != NULL) {
+ ret = SET_ERROR(EINVAL);
+ goto error;
+ }
+
+ ret = nvlist_lookup_nvlist(innvl, ZPOOL_HIDDEN_ARGS, &hidden_args);
+ if (ret != 0) {
+ ret = SET_ERROR(EINVAL);
+ goto error;
+ }
+
+ ret = dsl_crypto_params_create_nvlist(DCP_CMD_NONE, NULL,
+ hidden_args, &dcp);
+ if (ret != 0)
+ goto error;
+
+ ret = spa_keystore_load_wkey(dsname, dcp, noop);
+ if (ret != 0)
+ goto error;
+
+ dsl_crypto_params_free(dcp, noop);
+
+ return (0);
+
+error:
+ dsl_crypto_params_free(dcp, B_TRUE);
+ return (ret);
+}
+
+/*
+ * Unload a user's wrapping key from the kernel.
+ * Both innvl and outnvl are unused.
+ */
+/* ARGSUSED */
+static int
+zfs_ioc_unload_key(const char *dsname, nvlist_t *innvl, nvlist_t *outnvl)
+{
+ int ret = 0;
+
+ if (strchr(dsname, '@') != NULL || strchr(dsname, '%') != NULL) {
+ ret = (SET_ERROR(EINVAL));
+ goto out;
+ }
+
+ ret = spa_keystore_unload_wkey(dsname);
+ if (ret != 0)
+ goto out;
+
+out:
+ return (ret);
+}
+
+/*
+ * Changes a user's wrapping key used to decrypt a dataset. The keyformat,
+ * keylocation, pbkdf2salt, and pbkdf2iters properties can also be specified
+ * here to change how the key is derived in userspace.
+ *
+ * innvl: {
+ * "hidden_args" (optional) -> { "wkeydata" -> value }
+ * raw uint8_t array of new encryption wrapping key data (32 bytes)
+ * "props" (optional) -> { prop -> value }
+ * }
+ *
+ * outnvl is unused
+ */
+/* ARGSUSED */
+static int
+zfs_ioc_change_key(const char *dsname, nvlist_t *innvl, nvlist_t *outnvl)
+{
+ int ret;
+ uint64_t cmd = DCP_CMD_NONE;
+ dsl_crypto_params_t *dcp = NULL;
+ nvlist_t *args = NULL, *hidden_args = NULL;
+
+ if (strchr(dsname, '@') != NULL || strchr(dsname, '%') != NULL) {
+ ret = (SET_ERROR(EINVAL));
+ goto error;
+ }
+
+ (void) nvlist_lookup_uint64(innvl, "crypt_cmd", &cmd);
+ (void) nvlist_lookup_nvlist(innvl, "props", &args);
+ (void) nvlist_lookup_nvlist(innvl, ZPOOL_HIDDEN_ARGS, &hidden_args);
+
+ ret = dsl_crypto_params_create_nvlist(cmd, args, hidden_args, &dcp);
+ if (ret != 0)
+ goto error;
+
+ ret = spa_keystore_change_key(dsname, dcp);
+ if (ret != 0)
+ goto error;
+
+ dsl_crypto_params_free(dcp, B_FALSE);
+
+ return (0);
+
+error:
+ dsl_crypto_params_free(dcp, B_TRUE);
+ return (ret);
+}
+
static zfs_ioc_vec_t zfs_ioc_vec[ZFS_IOC_LAST - ZFS_IOC_FIRST];
static void
@@ -6040,6 +6234,17 @@ zfs_ioctl_init(void)
zfs_ioc_pool_sync, zfs_secpolicy_none, POOL_NAME,
POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_FALSE, B_FALSE);
+ zfs_ioctl_register("load-key", ZFS_IOC_LOAD_KEY,
+ zfs_ioc_load_key, zfs_secpolicy_load_key,
+ DATASET_NAME, POOL_CHECK_SUSPENDED, B_TRUE, B_TRUE);
+ zfs_ioctl_register("unload-key", ZFS_IOC_UNLOAD_KEY,
+ zfs_ioc_unload_key, zfs_secpolicy_load_key,
+ DATASET_NAME, POOL_CHECK_SUSPENDED, B_TRUE, B_TRUE);
+ zfs_ioctl_register("change-key", ZFS_IOC_CHANGE_KEY,
+ zfs_ioc_change_key, zfs_secpolicy_change_key,
+ DATASET_NAME, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY,
+ B_TRUE, B_TRUE);
+
/* IOCTLS that use the legacy function signature */
zfs_ioctl_register_legacy(ZFS_IOC_POOL_FREEZE, zfs_ioc_pool_freeze,