4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Portions Copyright 2011 Martin Matuska
25 * Copyright 2015, OmniTI Computer Consulting, Inc. All rights reserved.
26 * Portions Copyright 2012 Pawel Jakub Dawidek <pawel@dawidek.net>
27 * Copyright (c) 2014, 2016 Joyent, Inc. All rights reserved.
28 * Copyright 2016 Nexenta Systems, Inc. All rights reserved.
29 * Copyright (c) 2014, Joyent, Inc. All rights reserved.
30 * Copyright (c) 2011, 2018 by Delphix. All rights reserved.
31 * Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
32 * Copyright (c) 2013 Steven Hartland. All rights reserved.
33 * Copyright (c) 2014 Integros [integros.com]
34 * Copyright 2016 Toomas Soome <tsoome@me.com>
35 * Copyright (c) 2016 Actifio, Inc. All rights reserved.
36 * Copyright (c) 2017, loli10K <ezomori.nozomu@gmail.com>. All rights reserved.
37 * Copyright (c) 2017 Datto Inc. All rights reserved.
38 * Copyright 2017 RackTop Systems.
39 * Copyright (c) 2017 Open-E, Inc. All Rights Reserved.
45 * This file handles the ioctls to /dev/zfs, used for configuring ZFS storage
46 * pools and filesystems, e.g. with /sbin/zfs and /sbin/zpool.
48 * There are two ways that we handle ioctls: the legacy way where almost
49 * all of the logic is in the ioctl callback, and the new way where most
50 * of the marshalling is handled in the common entry point, zfsdev_ioctl().
52 * Non-legacy ioctls should be registered by calling
53 * zfs_ioctl_register() from zfs_ioctl_init(). The ioctl is invoked
54 * from userland by lzc_ioctl().
56 * The registration arguments are as follows:
59 * The name of the ioctl. This is used for history logging. If the
60 * ioctl returns successfully (the callback returns 0), and allow_log
61 * is true, then a history log entry will be recorded with the input &
62 * output nvlists. The log entry can be printed with "zpool history -i".
65 * The ioctl request number, which userland will pass to ioctl(2).
66 * We want newer versions of libzfs and libzfs_core to run against
67 * existing zfs kernel modules (i.e. a deferred reboot after an update).
68 * Therefore the ioctl numbers cannot change from release to release.
70 * zfs_secpolicy_func_t *secpolicy
71 * This function will be called before the zfs_ioc_func_t, to
72 * determine if this operation is permitted. It should return EPERM
73 * on failure, and 0 on success. Checks include determining if the
74 * dataset is visible in this zone, and if the user has either all
75 * zfs privileges in the zone (SYS_MOUNT), or has been granted permission
76 * to do this operation on this dataset with "zfs allow".
78 * zfs_ioc_namecheck_t namecheck
79 * This specifies what to expect in the zfs_cmd_t:zc_name -- a pool
80 * name, a dataset name, or nothing. If the name is not well-formed,
81 * the ioctl will fail and the callback will not be called.
82 * Therefore, the callback can assume that the name is well-formed
83 * (e.g. is null-terminated, doesn't have more than one '@' character,
84 * doesn't have invalid characters).
86 * zfs_ioc_poolcheck_t pool_check
87 * This specifies requirements on the pool state. If the pool does
88 * not meet them (is suspended or is readonly), the ioctl will fail
89 * and the callback will not be called. If any checks are specified
90 * (i.e. it is not POOL_CHECK_NONE), namecheck must not be NO_NAME.
91 * Multiple checks can be or-ed together (e.g. POOL_CHECK_SUSPENDED |
92 * POOL_CHECK_READONLY).
94 * zfs_ioc_key_t *nvl_keys
95 * The list of expected/allowable innvl input keys. This list is used
96 * to validate the nvlist input to the ioctl.
98 * boolean_t smush_outnvlist
99 * If smush_outnvlist is true, then the output is presumed to be a
100 * list of errors, and it will be "smushed" down to fit into the
101 * caller's buffer, by removing some entries and replacing them with a
102 * single "N_MORE_ERRORS" entry indicating how many were removed. See
103 * nvlist_smush() for details. If smush_outnvlist is false, and the
104 * outnvlist does not fit into the userland-provided buffer, then the
105 * ioctl will fail with ENOMEM.
107 * zfs_ioc_func_t *func
108 * The callback function that will perform the operation.
110 * The callback should return 0 on success, or an error number on
111 * failure. If the function fails, the userland ioctl will return -1,
112 * and errno will be set to the callback's return value. The callback
113 * will be called with the following arguments:
116 * The name of the pool or dataset to operate on, from
117 * zfs_cmd_t:zc_name. The 'namecheck' argument specifies the
118 * expected type (pool, dataset, or none).
121 * The input nvlist, deserialized from zfs_cmd_t:zc_nvlist_src. Or
122 * NULL if no input nvlist was provided. Changes to this nvlist are
123 * ignored. If the input nvlist could not be deserialized, the
124 * ioctl will fail and the callback will not be called.
127 * The output nvlist, initially empty. The callback can fill it in,
128 * and it will be returned to userland by serializing it into
129 * zfs_cmd_t:zc_nvlist_dst. If it is non-empty, and serialization
130 * fails (e.g. because the caller didn't supply a large enough
131 * buffer), then the overall ioctl will fail. See the
132 * 'smush_nvlist' argument above for additional behaviors.
134 * There are two typical uses of the output nvlist:
135 * - To return state, e.g. property values. In this case,
136 * smush_outnvlist should be false. If the buffer was not large
137 * enough, the caller will reallocate a larger buffer and try
140 * - To return multiple errors from an ioctl which makes on-disk
141 * changes. In this case, smush_outnvlist should be true.
142 * Ioctls which make on-disk modifications should generally not
143 * use the outnvl if they succeed, because the caller can not
144 * distinguish between the operation failing, and
145 * deserialization failing.
147 * IOCTL Interface Errors
149 * The following ioctl input errors can be returned:
150 * ZFS_ERR_IOC_CMD_UNAVAIL the ioctl number is not supported by kernel
151 * ZFS_ERR_IOC_ARG_UNAVAIL an input argument is not supported by kernel
152 * ZFS_ERR_IOC_ARG_REQUIRED a required input argument is missing
153 * ZFS_ERR_IOC_ARG_BADTYPE an input argument has an invalid type
156 #include <sys/types.h>
157 #include <sys/param.h>
158 #include <sys/errno.h>
160 #include <sys/file.h>
161 #include <sys/kmem.h>
162 #include <sys/cmn_err.h>
163 #include <sys/stat.h>
164 #include <sys/zfs_ioctl.h>
165 #include <sys/zfs_vfsops.h>
166 #include <sys/zfs_znode.h>
169 #include <sys/spa_impl.h>
170 #include <sys/vdev.h>
171 #include <sys/vdev_impl.h>
173 #include <sys/dsl_dir.h>
174 #include <sys/dsl_dataset.h>
175 #include <sys/dsl_prop.h>
176 #include <sys/dsl_deleg.h>
177 #include <sys/dmu_objset.h>
178 #include <sys/dmu_impl.h>
179 #include <sys/dmu_tx.h>
180 #include <sys/sunddi.h>
181 #include <sys/policy.h>
182 #include <sys/zone.h>
183 #include <sys/nvpair.h>
184 #include <sys/pathname.h>
186 #include <sys/fs/zfs.h>
187 #include <sys/zfs_ctldir.h>
188 #include <sys/zfs_dir.h>
189 #include <sys/zfs_onexit.h>
190 #include <sys/zvol.h>
191 #include <sys/dsl_scan.h>
192 #include <sys/fm/util.h>
193 #include <sys/dsl_crypt.h>
195 #include <sys/dmu_recv.h>
196 #include <sys/dmu_send.h>
197 #include <sys/dsl_destroy.h>
198 #include <sys/dsl_bookmark.h>
199 #include <sys/dsl_userhold.h>
200 #include <sys/zfeature.h>
202 #include <sys/zio_checksum.h>
203 #include <sys/vdev_removal.h>
204 #include <sys/zfs_sysfs.h>
206 #include <linux/miscdevice.h>
207 #include <linux/slab.h>
209 #include "zfs_namecheck.h"
210 #include "zfs_prop.h"
211 #include "zfs_deleg.h"
212 #include "zfs_comutil.h"
214 #include <sys/lua/lua.h>
215 #include <sys/lua/lauxlib.h>
218 * Limit maximum nvlist size. We don't want users passing in insane values
219 * for zc->zc_nvlist_src_size, since we will need to allocate that much memory.
221 #define MAX_NVLIST_SRC_SIZE KMALLOC_MAX_SIZE
223 kmutex_t zfsdev_state_lock;
224 zfsdev_state_t *zfsdev_state_list;
226 extern void zfs_init(void);
227 extern void zfs_fini(void);
229 uint_t zfs_fsyncer_key;
230 extern uint_t rrw_tsd_key;
231 static uint_t zfs_allow_log_key;
233 typedef int zfs_ioc_legacy_func_t(zfs_cmd_t *);
234 typedef int zfs_ioc_func_t(const char *, nvlist_t *, nvlist_t *);
235 typedef int zfs_secpolicy_func_t(zfs_cmd_t *, nvlist_t *, cred_t *);
238 * IOC Keys are used to document and validate user->kernel interface inputs.
239 * See zfs_keys_recv_new for an example declaration. Any key name that is not
240 * listed will be rejected as input.
242 * The keyname 'optional' is always allowed, and must be an nvlist if present.
243 * Arguments which older kernels can safely ignore can be placed under the
246 * When adding new keys to an existing ioc for new functionality, consider:
247 * - adding an entry into zfs_sysfs.c zfs_features[] list
248 * - updating the libzfs_input_check.c test utility
250 * Note: in the ZK_WILDCARDLIST case, the name serves as documentation
251 * for the expected name (bookmark, snapshot, property, etc) but there
252 * is no validation in the preflight zfs_check_input_nvpairs() check.
255 ZK_OPTIONAL = 1 << 0, /* pair is optional */
256 ZK_WILDCARDLIST = 1 << 1, /* one or more unspecified key names */
259 /* DATA_TYPE_ANY is used when zkey_type can vary. */
260 #define DATA_TYPE_ANY DATA_TYPE_UNKNOWN
262 typedef struct zfs_ioc_key {
263 const char *zkey_name;
264 data_type_t zkey_type;
265 ioc_key_flag_t zkey_flags;
272 } zfs_ioc_namecheck_t;
275 POOL_CHECK_NONE = 1 << 0,
276 POOL_CHECK_SUSPENDED = 1 << 1,
277 POOL_CHECK_READONLY = 1 << 2,
278 } zfs_ioc_poolcheck_t;
280 typedef struct zfs_ioc_vec {
281 zfs_ioc_legacy_func_t *zvec_legacy_func;
282 zfs_ioc_func_t *zvec_func;
283 zfs_secpolicy_func_t *zvec_secpolicy;
284 zfs_ioc_namecheck_t zvec_namecheck;
285 boolean_t zvec_allow_log;
286 zfs_ioc_poolcheck_t zvec_pool_check;
287 boolean_t zvec_smush_outnvlist;
288 const char *zvec_name;
289 const zfs_ioc_key_t *zvec_nvl_keys;
290 size_t zvec_nvl_key_count;
293 /* This array is indexed by zfs_userquota_prop_t */
294 static const char *userquota_perms[] = {
295 ZFS_DELEG_PERM_USERUSED,
296 ZFS_DELEG_PERM_USERQUOTA,
297 ZFS_DELEG_PERM_GROUPUSED,
298 ZFS_DELEG_PERM_GROUPQUOTA,
299 ZFS_DELEG_PERM_USEROBJUSED,
300 ZFS_DELEG_PERM_USEROBJQUOTA,
301 ZFS_DELEG_PERM_GROUPOBJUSED,
302 ZFS_DELEG_PERM_GROUPOBJQUOTA,
303 ZFS_DELEG_PERM_PROJECTUSED,
304 ZFS_DELEG_PERM_PROJECTQUOTA,
305 ZFS_DELEG_PERM_PROJECTOBJUSED,
306 ZFS_DELEG_PERM_PROJECTOBJQUOTA,
309 static int zfs_ioc_userspace_upgrade(zfs_cmd_t *zc);
310 static int zfs_ioc_id_quota_upgrade(zfs_cmd_t *zc);
311 static int zfs_check_settable(const char *name, nvpair_t *property,
313 static int zfs_check_clearable(char *dataset, nvlist_t *props,
315 static int zfs_fill_zplprops_root(uint64_t, nvlist_t *, nvlist_t *,
317 int zfs_set_prop_nvlist(const char *, zprop_source_t, nvlist_t *, nvlist_t *);
318 static int get_nvlist(uint64_t nvl, uint64_t size, int iflag, nvlist_t **nvp);
321 history_str_free(char *buf)
323 kmem_free(buf, HIS_MAX_RECORD_LEN);
327 history_str_get(zfs_cmd_t *zc)
331 if (zc->zc_history == 0)
334 buf = kmem_alloc(HIS_MAX_RECORD_LEN, KM_SLEEP);
335 if (copyinstr((void *)(uintptr_t)zc->zc_history,
336 buf, HIS_MAX_RECORD_LEN, NULL) != 0) {
337 history_str_free(buf);
341 buf[HIS_MAX_RECORD_LEN -1] = '\0';
347 * Check to see if the named dataset is currently defined as bootable
350 zfs_is_bootfs(const char *name)
354 if (dmu_objset_hold(name, FTAG, &os) == 0) {
356 ret = (dmu_objset_id(os) == spa_bootfs(dmu_objset_spa(os)));
357 dmu_objset_rele(os, FTAG);
364 * Return non-zero if the spa version is less than requested version.
367 zfs_earlier_version(const char *name, int version)
371 if (spa_open(name, &spa, FTAG) == 0) {
372 if (spa_version(spa) < version) {
373 spa_close(spa, FTAG);
376 spa_close(spa, FTAG);
382 * Return TRUE if the ZPL version is less than requested version.
385 zpl_earlier_version(const char *name, int version)
388 boolean_t rc = B_TRUE;
390 if (dmu_objset_hold(name, FTAG, &os) == 0) {
393 if (dmu_objset_type(os) != DMU_OST_ZFS) {
394 dmu_objset_rele(os, FTAG);
397 /* XXX reading from non-owned objset */
398 if (zfs_get_zplprop(os, ZFS_PROP_VERSION, &zplversion) == 0)
399 rc = zplversion < version;
400 dmu_objset_rele(os, FTAG);
406 zfs_log_history(zfs_cmd_t *zc)
411 if ((buf = history_str_get(zc)) == NULL)
414 if (spa_open(zc->zc_name, &spa, FTAG) == 0) {
415 if (spa_version(spa) >= SPA_VERSION_ZPOOL_HISTORY)
416 (void) spa_history_log(spa, buf);
417 spa_close(spa, FTAG);
419 history_str_free(buf);
423 * Policy for top-level read operations (list pools). Requires no privileges,
424 * and can be used in the local zone, as there is no associated dataset.
428 zfs_secpolicy_none(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
434 * Policy for dataset read operations (list children, get statistics). Requires
435 * no privileges, but must be visible in the local zone.
439 zfs_secpolicy_read(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
441 if (INGLOBALZONE(curproc) ||
442 zone_dataset_visible(zc->zc_name, NULL))
445 return (SET_ERROR(ENOENT));
449 zfs_dozonecheck_impl(const char *dataset, uint64_t zoned, cred_t *cr)
454 * The dataset must be visible by this zone -- check this first
455 * so they don't see EPERM on something they shouldn't know about.
457 if (!INGLOBALZONE(curproc) &&
458 !zone_dataset_visible(dataset, &writable))
459 return (SET_ERROR(ENOENT));
461 if (INGLOBALZONE(curproc)) {
463 * If the fs is zoned, only root can access it from the
466 if (secpolicy_zfs(cr) && zoned)
467 return (SET_ERROR(EPERM));
470 * If we are in a local zone, the 'zoned' property must be set.
473 return (SET_ERROR(EPERM));
475 /* must be writable by this zone */
477 return (SET_ERROR(EPERM));
483 zfs_dozonecheck(const char *dataset, cred_t *cr)
487 if (dsl_prop_get_integer(dataset, "zoned", &zoned, NULL))
488 return (SET_ERROR(ENOENT));
490 return (zfs_dozonecheck_impl(dataset, zoned, cr));
494 zfs_dozonecheck_ds(const char *dataset, dsl_dataset_t *ds, cred_t *cr)
498 if (dsl_prop_get_int_ds(ds, "zoned", &zoned))
499 return (SET_ERROR(ENOENT));
501 return (zfs_dozonecheck_impl(dataset, zoned, cr));
505 zfs_secpolicy_write_perms_ds(const char *name, dsl_dataset_t *ds,
506 const char *perm, cred_t *cr)
510 error = zfs_dozonecheck_ds(name, ds, cr);
512 error = secpolicy_zfs(cr);
514 error = dsl_deleg_access_impl(ds, perm, cr);
520 zfs_secpolicy_write_perms(const char *name, const char *perm, cred_t *cr)
527 * First do a quick check for root in the global zone, which
528 * is allowed to do all write_perms. This ensures that zfs_ioc_*
529 * will get to handle nonexistent datasets.
531 if (INGLOBALZONE(curproc) && secpolicy_zfs(cr) == 0)
534 error = dsl_pool_hold(name, FTAG, &dp);
538 error = dsl_dataset_hold(dp, name, FTAG, &ds);
540 dsl_pool_rele(dp, FTAG);
544 error = zfs_secpolicy_write_perms_ds(name, ds, perm, cr);
546 dsl_dataset_rele(ds, FTAG);
547 dsl_pool_rele(dp, FTAG);
552 * Policy for setting the security label property.
554 * Returns 0 for success, non-zero for access and other errors.
557 zfs_set_slabel_policy(const char *name, char *strval, cred_t *cr)
560 char ds_hexsl[MAXNAMELEN];
561 bslabel_t ds_sl, new_sl;
562 boolean_t new_default = FALSE;
564 int needed_priv = -1;
567 /* First get the existing dataset label. */
568 error = dsl_prop_get(name, zfs_prop_to_name(ZFS_PROP_MLSLABEL),
569 1, sizeof (ds_hexsl), &ds_hexsl, NULL);
571 return (SET_ERROR(EPERM));
573 if (strcasecmp(strval, ZFS_MLSLABEL_DEFAULT) == 0)
576 /* The label must be translatable */
577 if (!new_default && (hexstr_to_label(strval, &new_sl) != 0))
578 return (SET_ERROR(EINVAL));
581 * In a non-global zone, disallow attempts to set a label that
582 * doesn't match that of the zone; otherwise no other checks
585 if (!INGLOBALZONE(curproc)) {
586 if (new_default || !blequal(&new_sl, CR_SL(CRED())))
587 return (SET_ERROR(EPERM));
592 * For global-zone datasets (i.e., those whose zoned property is
593 * "off", verify that the specified new label is valid for the
596 if (dsl_prop_get_integer(name,
597 zfs_prop_to_name(ZFS_PROP_ZONED), &zoned, NULL))
598 return (SET_ERROR(EPERM));
600 if (zfs_check_global_label(name, strval) != 0)
601 return (SET_ERROR(EPERM));
605 * If the existing dataset label is nondefault, check if the
606 * dataset is mounted (label cannot be changed while mounted).
607 * Get the zfsvfs_t; if there isn't one, then the dataset isn't
608 * mounted (or isn't a dataset, doesn't exist, ...).
610 if (strcasecmp(ds_hexsl, ZFS_MLSLABEL_DEFAULT) != 0) {
612 static char *setsl_tag = "setsl_tag";
615 * Try to own the dataset; abort if there is any error,
616 * (e.g., already mounted, in use, or other error).
618 error = dmu_objset_own(name, DMU_OST_ZFS, B_TRUE, B_TRUE,
621 return (SET_ERROR(EPERM));
623 dmu_objset_disown(os, B_TRUE, setsl_tag);
626 needed_priv = PRIV_FILE_DOWNGRADE_SL;
630 if (hexstr_to_label(strval, &new_sl) != 0)
631 return (SET_ERROR(EPERM));
633 if (blstrictdom(&ds_sl, &new_sl))
634 needed_priv = PRIV_FILE_DOWNGRADE_SL;
635 else if (blstrictdom(&new_sl, &ds_sl))
636 needed_priv = PRIV_FILE_UPGRADE_SL;
638 /* dataset currently has a default label */
640 needed_priv = PRIV_FILE_UPGRADE_SL;
644 if (needed_priv != -1)
645 return (PRIV_POLICY(cr, needed_priv, B_FALSE, EPERM, NULL));
648 return (SET_ERROR(ENOTSUP));
649 #endif /* HAVE_MLSLABEL */
653 zfs_secpolicy_setprop(const char *dsname, zfs_prop_t prop, nvpair_t *propval,
659 * Check permissions for special properties.
666 * Disallow setting of 'zoned' from within a local zone.
668 if (!INGLOBALZONE(curproc))
669 return (SET_ERROR(EPERM));
673 case ZFS_PROP_FILESYSTEM_LIMIT:
674 case ZFS_PROP_SNAPSHOT_LIMIT:
675 if (!INGLOBALZONE(curproc)) {
677 char setpoint[ZFS_MAX_DATASET_NAME_LEN];
679 * Unprivileged users are allowed to modify the
680 * limit on things *under* (ie. contained by)
681 * the thing they own.
683 if (dsl_prop_get_integer(dsname, "zoned", &zoned,
685 return (SET_ERROR(EPERM));
686 if (!zoned || strlen(dsname) <= strlen(setpoint))
687 return (SET_ERROR(EPERM));
691 case ZFS_PROP_MLSLABEL:
692 if (!is_system_labeled())
693 return (SET_ERROR(EPERM));
695 if (nvpair_value_string(propval, &strval) == 0) {
698 err = zfs_set_slabel_policy(dsname, strval, CRED());
705 return (zfs_secpolicy_write_perms(dsname, zfs_prop_to_name(prop), cr));
710 zfs_secpolicy_set_fsacl(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
714 error = zfs_dozonecheck(zc->zc_name, cr);
719 * permission to set permissions will be evaluated later in
720 * dsl_deleg_can_allow()
727 zfs_secpolicy_rollback(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
729 return (zfs_secpolicy_write_perms(zc->zc_name,
730 ZFS_DELEG_PERM_ROLLBACK, cr));
735 zfs_secpolicy_send(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
743 * Generate the current snapshot name from the given objsetid, then
744 * use that name for the secpolicy/zone checks.
746 cp = strchr(zc->zc_name, '@');
748 return (SET_ERROR(EINVAL));
749 error = dsl_pool_hold(zc->zc_name, FTAG, &dp);
753 error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &ds);
755 dsl_pool_rele(dp, FTAG);
759 dsl_dataset_name(ds, zc->zc_name);
761 error = zfs_secpolicy_write_perms_ds(zc->zc_name, ds,
762 ZFS_DELEG_PERM_SEND, cr);
763 dsl_dataset_rele(ds, FTAG);
764 dsl_pool_rele(dp, FTAG);
771 zfs_secpolicy_send_new(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
773 return (zfs_secpolicy_write_perms(zc->zc_name,
774 ZFS_DELEG_PERM_SEND, cr));
778 zfs_secpolicy_share(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
780 return (SET_ERROR(ENOTSUP));
784 zfs_secpolicy_smb_acl(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
786 return (SET_ERROR(ENOTSUP));
790 zfs_get_parent(const char *datasetname, char *parent, int parentsize)
795 * Remove the @bla or /bla from the end of the name to get the parent.
797 (void) strncpy(parent, datasetname, parentsize);
798 cp = strrchr(parent, '@');
802 cp = strrchr(parent, '/');
804 return (SET_ERROR(ENOENT));
812 zfs_secpolicy_destroy_perms(const char *name, cred_t *cr)
816 if ((error = zfs_secpolicy_write_perms(name,
817 ZFS_DELEG_PERM_MOUNT, cr)) != 0)
820 return (zfs_secpolicy_write_perms(name, ZFS_DELEG_PERM_DESTROY, cr));
825 zfs_secpolicy_destroy(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
827 return (zfs_secpolicy_destroy_perms(zc->zc_name, cr));
831 * Destroying snapshots with delegated permissions requires
832 * descendant mount and destroy permissions.
836 zfs_secpolicy_destroy_snaps(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
839 nvpair_t *pair, *nextpair;
842 snaps = fnvlist_lookup_nvlist(innvl, "snaps");
844 for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL;
846 nextpair = nvlist_next_nvpair(snaps, pair);
847 error = zfs_secpolicy_destroy_perms(nvpair_name(pair), cr);
848 if (error == ENOENT) {
850 * Ignore any snapshots that don't exist (we consider
851 * them "already destroyed"). Remove the name from the
852 * nvl here in case the snapshot is created between
853 * now and when we try to destroy it (in which case
854 * we don't want to destroy it since we haven't
855 * checked for permission).
857 fnvlist_remove_nvpair(snaps, pair);
868 zfs_secpolicy_rename_perms(const char *from, const char *to, cred_t *cr)
870 char parentname[ZFS_MAX_DATASET_NAME_LEN];
873 if ((error = zfs_secpolicy_write_perms(from,
874 ZFS_DELEG_PERM_RENAME, cr)) != 0)
877 if ((error = zfs_secpolicy_write_perms(from,
878 ZFS_DELEG_PERM_MOUNT, cr)) != 0)
881 if ((error = zfs_get_parent(to, parentname,
882 sizeof (parentname))) != 0)
885 if ((error = zfs_secpolicy_write_perms(parentname,
886 ZFS_DELEG_PERM_CREATE, cr)) != 0)
889 if ((error = zfs_secpolicy_write_perms(parentname,
890 ZFS_DELEG_PERM_MOUNT, cr)) != 0)
898 zfs_secpolicy_rename(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
900 return (zfs_secpolicy_rename_perms(zc->zc_name, zc->zc_value, cr));
905 zfs_secpolicy_promote(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
908 dsl_dataset_t *clone;
911 error = zfs_secpolicy_write_perms(zc->zc_name,
912 ZFS_DELEG_PERM_PROMOTE, cr);
916 error = dsl_pool_hold(zc->zc_name, FTAG, &dp);
920 error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &clone);
923 char parentname[ZFS_MAX_DATASET_NAME_LEN];
924 dsl_dataset_t *origin = NULL;
928 error = dsl_dataset_hold_obj(dd->dd_pool,
929 dsl_dir_phys(dd)->dd_origin_obj, FTAG, &origin);
931 dsl_dataset_rele(clone, FTAG);
932 dsl_pool_rele(dp, FTAG);
936 error = zfs_secpolicy_write_perms_ds(zc->zc_name, clone,
937 ZFS_DELEG_PERM_MOUNT, cr);
939 dsl_dataset_name(origin, parentname);
941 error = zfs_secpolicy_write_perms_ds(parentname, origin,
942 ZFS_DELEG_PERM_PROMOTE, cr);
944 dsl_dataset_rele(clone, FTAG);
945 dsl_dataset_rele(origin, FTAG);
947 dsl_pool_rele(dp, FTAG);
953 zfs_secpolicy_recv(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
957 if ((error = zfs_secpolicy_write_perms(zc->zc_name,
958 ZFS_DELEG_PERM_RECEIVE, cr)) != 0)
961 if ((error = zfs_secpolicy_write_perms(zc->zc_name,
962 ZFS_DELEG_PERM_MOUNT, cr)) != 0)
965 return (zfs_secpolicy_write_perms(zc->zc_name,
966 ZFS_DELEG_PERM_CREATE, cr));
971 zfs_secpolicy_recv_new(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
973 return (zfs_secpolicy_recv(zc, innvl, cr));
977 zfs_secpolicy_snapshot_perms(const char *name, cred_t *cr)
979 return (zfs_secpolicy_write_perms(name,
980 ZFS_DELEG_PERM_SNAPSHOT, cr));
984 * Check for permission to create each snapshot in the nvlist.
988 zfs_secpolicy_snapshot(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
994 snaps = fnvlist_lookup_nvlist(innvl, "snaps");
996 for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL;
997 pair = nvlist_next_nvpair(snaps, pair)) {
998 char *name = nvpair_name(pair);
999 char *atp = strchr(name, '@');
1002 error = SET_ERROR(EINVAL);
1006 error = zfs_secpolicy_snapshot_perms(name, cr);
1015 * Check for permission to create each bookmark in the nvlist.
1019 zfs_secpolicy_bookmark(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
1023 for (nvpair_t *pair = nvlist_next_nvpair(innvl, NULL);
1024 pair != NULL; pair = nvlist_next_nvpair(innvl, pair)) {
1025 char *name = nvpair_name(pair);
1026 char *hashp = strchr(name, '#');
1028 if (hashp == NULL) {
1029 error = SET_ERROR(EINVAL);
1033 error = zfs_secpolicy_write_perms(name,
1034 ZFS_DELEG_PERM_BOOKMARK, cr);
1044 zfs_secpolicy_remap(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
1046 return (zfs_secpolicy_write_perms(zc->zc_name,
1047 ZFS_DELEG_PERM_REMAP, cr));
1052 zfs_secpolicy_destroy_bookmarks(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
1054 nvpair_t *pair, *nextpair;
1057 for (pair = nvlist_next_nvpair(innvl, NULL); pair != NULL;
1059 char *name = nvpair_name(pair);
1060 char *hashp = strchr(name, '#');
1061 nextpair = nvlist_next_nvpair(innvl, pair);
1063 if (hashp == NULL) {
1064 error = SET_ERROR(EINVAL);
1069 error = zfs_secpolicy_write_perms(name,
1070 ZFS_DELEG_PERM_DESTROY, cr);
1072 if (error == ENOENT) {
1074 * Ignore any filesystems that don't exist (we consider
1075 * their bookmarks "already destroyed"). Remove
1076 * the name from the nvl here in case the filesystem
1077 * is created between now and when we try to destroy
1078 * the bookmark (in which case we don't want to
1079 * destroy it since we haven't checked for permission).
1081 fnvlist_remove_nvpair(innvl, pair);
1093 zfs_secpolicy_log_history(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
1096 * Even root must have a proper TSD so that we know what pool
1099 if (tsd_get(zfs_allow_log_key) == NULL)
1100 return (SET_ERROR(EPERM));
1105 zfs_secpolicy_create_clone(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
1107 char parentname[ZFS_MAX_DATASET_NAME_LEN];
1111 if ((error = zfs_get_parent(zc->zc_name, parentname,
1112 sizeof (parentname))) != 0)
1115 if (nvlist_lookup_string(innvl, "origin", &origin) == 0 &&
1116 (error = zfs_secpolicy_write_perms(origin,
1117 ZFS_DELEG_PERM_CLONE, cr)) != 0)
1120 if ((error = zfs_secpolicy_write_perms(parentname,
1121 ZFS_DELEG_PERM_CREATE, cr)) != 0)
1124 return (zfs_secpolicy_write_perms(parentname,
1125 ZFS_DELEG_PERM_MOUNT, cr));
1129 * Policy for pool operations - create/destroy pools, add vdevs, etc. Requires
1130 * SYS_CONFIG privilege, which is not available in a local zone.
1134 zfs_secpolicy_config(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
1136 if (secpolicy_sys_config(cr, B_FALSE) != 0)
1137 return (SET_ERROR(EPERM));
1143 * Policy for object to name lookups.
1147 zfs_secpolicy_diff(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
1151 if ((error = secpolicy_sys_config(cr, B_FALSE)) == 0)
1154 error = zfs_secpolicy_write_perms(zc->zc_name, ZFS_DELEG_PERM_DIFF, cr);
1159 * Policy for fault injection. Requires all privileges.
1163 zfs_secpolicy_inject(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
1165 return (secpolicy_zinject(cr));
1170 zfs_secpolicy_inherit_prop(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
1172 zfs_prop_t prop = zfs_name_to_prop(zc->zc_value);
1174 if (prop == ZPROP_INVAL) {
1175 if (!zfs_prop_user(zc->zc_value))
1176 return (SET_ERROR(EINVAL));
1177 return (zfs_secpolicy_write_perms(zc->zc_name,
1178 ZFS_DELEG_PERM_USERPROP, cr));
1180 return (zfs_secpolicy_setprop(zc->zc_name, prop,
1186 zfs_secpolicy_userspace_one(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
1188 int err = zfs_secpolicy_read(zc, innvl, cr);
1192 if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS)
1193 return (SET_ERROR(EINVAL));
1195 if (zc->zc_value[0] == 0) {
1197 * They are asking about a posix uid/gid. If it's
1198 * themself, allow it.
1200 if (zc->zc_objset_type == ZFS_PROP_USERUSED ||
1201 zc->zc_objset_type == ZFS_PROP_USERQUOTA ||
1202 zc->zc_objset_type == ZFS_PROP_USEROBJUSED ||
1203 zc->zc_objset_type == ZFS_PROP_USEROBJQUOTA) {
1204 if (zc->zc_guid == crgetuid(cr))
1206 } else if (zc->zc_objset_type == ZFS_PROP_GROUPUSED ||
1207 zc->zc_objset_type == ZFS_PROP_GROUPQUOTA ||
1208 zc->zc_objset_type == ZFS_PROP_GROUPOBJUSED ||
1209 zc->zc_objset_type == ZFS_PROP_GROUPOBJQUOTA) {
1210 if (groupmember(zc->zc_guid, cr))
1213 /* else is for project quota/used */
1216 return (zfs_secpolicy_write_perms(zc->zc_name,
1217 userquota_perms[zc->zc_objset_type], cr));
1221 zfs_secpolicy_userspace_many(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
1223 int err = zfs_secpolicy_read(zc, innvl, cr);
1227 if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS)
1228 return (SET_ERROR(EINVAL));
1230 return (zfs_secpolicy_write_perms(zc->zc_name,
1231 userquota_perms[zc->zc_objset_type], cr));
1236 zfs_secpolicy_userspace_upgrade(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
1238 return (zfs_secpolicy_setprop(zc->zc_name, ZFS_PROP_VERSION,
1244 zfs_secpolicy_hold(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
1250 holds = fnvlist_lookup_nvlist(innvl, "holds");
1252 for (pair = nvlist_next_nvpair(holds, NULL); pair != NULL;
1253 pair = nvlist_next_nvpair(holds, pair)) {
1254 char fsname[ZFS_MAX_DATASET_NAME_LEN];
1255 error = dmu_fsname(nvpair_name(pair), fsname);
1258 error = zfs_secpolicy_write_perms(fsname,
1259 ZFS_DELEG_PERM_HOLD, cr);
1268 zfs_secpolicy_release(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
1273 for (pair = nvlist_next_nvpair(innvl, NULL); pair != NULL;
1274 pair = nvlist_next_nvpair(innvl, pair)) {
1275 char fsname[ZFS_MAX_DATASET_NAME_LEN];
1276 error = dmu_fsname(nvpair_name(pair), fsname);
1279 error = zfs_secpolicy_write_perms(fsname,
1280 ZFS_DELEG_PERM_RELEASE, cr);
1288 * Policy for allowing temporary snapshots to be taken or released
1291 zfs_secpolicy_tmp_snapshot(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
1294 * A temporary snapshot is the same as a snapshot,
1295 * hold, destroy and release all rolled into one.
1296 * Delegated diff alone is sufficient that we allow this.
1300 if ((error = zfs_secpolicy_write_perms(zc->zc_name,
1301 ZFS_DELEG_PERM_DIFF, cr)) == 0)
1304 error = zfs_secpolicy_snapshot_perms(zc->zc_name, cr);
1306 if (innvl != NULL) {
1308 error = zfs_secpolicy_hold(zc, innvl, cr);
1310 error = zfs_secpolicy_release(zc, innvl, cr);
1312 error = zfs_secpolicy_destroy(zc, innvl, cr);
1318 zfs_secpolicy_load_key(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
1320 return (zfs_secpolicy_write_perms(zc->zc_name,
1321 ZFS_DELEG_PERM_LOAD_KEY, cr));
1325 zfs_secpolicy_change_key(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
1327 return (zfs_secpolicy_write_perms(zc->zc_name,
1328 ZFS_DELEG_PERM_CHANGE_KEY, cr));
1332 * Returns the nvlist as specified by the user in the zfs_cmd_t.
1335 get_nvlist(uint64_t nvl, uint64_t size, int iflag, nvlist_t **nvp)
1339 nvlist_t *list = NULL;
1342 * Read in and unpack the user-supplied nvlist.
1345 return (SET_ERROR(EINVAL));
1347 packed = vmem_alloc(size, KM_SLEEP);
1349 if ((error = ddi_copyin((void *)(uintptr_t)nvl, packed, size,
1351 vmem_free(packed, size);
1352 return (SET_ERROR(EFAULT));
1355 if ((error = nvlist_unpack(packed, size, &list, 0)) != 0) {
1356 vmem_free(packed, size);
1360 vmem_free(packed, size);
1367 * Reduce the size of this nvlist until it can be serialized in 'max' bytes.
1368 * Entries will be removed from the end of the nvlist, and one int32 entry
1369 * named "N_MORE_ERRORS" will be added indicating how many entries were
1373 nvlist_smush(nvlist_t *errors, size_t max)
1377 size = fnvlist_size(errors);
1380 nvpair_t *more_errors;
1384 return (SET_ERROR(ENOMEM));
1386 fnvlist_add_int32(errors, ZPROP_N_MORE_ERRORS, 0);
1387 more_errors = nvlist_prev_nvpair(errors, NULL);
1390 nvpair_t *pair = nvlist_prev_nvpair(errors,
1392 fnvlist_remove_nvpair(errors, pair);
1394 size = fnvlist_size(errors);
1395 } while (size > max);
1397 fnvlist_remove_nvpair(errors, more_errors);
1398 fnvlist_add_int32(errors, ZPROP_N_MORE_ERRORS, n);
1399 ASSERT3U(fnvlist_size(errors), <=, max);
1406 put_nvlist(zfs_cmd_t *zc, nvlist_t *nvl)
1408 char *packed = NULL;
1412 size = fnvlist_size(nvl);
1414 if (size > zc->zc_nvlist_dst_size) {
1415 error = SET_ERROR(ENOMEM);
1417 packed = fnvlist_pack(nvl, &size);
1418 if (ddi_copyout(packed, (void *)(uintptr_t)zc->zc_nvlist_dst,
1419 size, zc->zc_iflags) != 0)
1420 error = SET_ERROR(EFAULT);
1421 fnvlist_pack_free(packed, size);
1424 zc->zc_nvlist_dst_size = size;
1425 zc->zc_nvlist_dst_filled = B_TRUE;
1430 getzfsvfs_impl(objset_t *os, zfsvfs_t **zfvp)
1433 if (dmu_objset_type(os) != DMU_OST_ZFS) {
1434 return (SET_ERROR(EINVAL));
1437 mutex_enter(&os->os_user_ptr_lock);
1438 *zfvp = dmu_objset_get_user(os);
1439 /* bump s_active only when non-zero to prevent umount race */
1440 if (*zfvp == NULL || (*zfvp)->z_sb == NULL ||
1441 !atomic_inc_not_zero(&((*zfvp)->z_sb->s_active))) {
1442 error = SET_ERROR(ESRCH);
1444 mutex_exit(&os->os_user_ptr_lock);
1449 getzfsvfs(const char *dsname, zfsvfs_t **zfvp)
1454 error = dmu_objset_hold(dsname, FTAG, &os);
1458 error = getzfsvfs_impl(os, zfvp);
1459 dmu_objset_rele(os, FTAG);
1464 * Find a zfsvfs_t for a mounted filesystem, or create our own, in which
1465 * case its z_sb will be NULL, and it will be opened as the owner.
1466 * If 'writer' is set, the z_teardown_lock will be held for RW_WRITER,
1467 * which prevents all inode ops from running.
1470 zfsvfs_hold(const char *name, void *tag, zfsvfs_t **zfvp, boolean_t writer)
1474 if (getzfsvfs(name, zfvp) != 0)
1475 error = zfsvfs_create(name, B_FALSE, zfvp);
1477 rrm_enter(&(*zfvp)->z_teardown_lock, (writer) ? RW_WRITER :
1479 if ((*zfvp)->z_unmounted) {
1481 * XXX we could probably try again, since the unmounting
1482 * thread should be just about to disassociate the
1483 * objset from the zfsvfs.
1485 rrm_exit(&(*zfvp)->z_teardown_lock, tag);
1486 return (SET_ERROR(EBUSY));
1493 zfsvfs_rele(zfsvfs_t *zfsvfs, void *tag)
1495 rrm_exit(&zfsvfs->z_teardown_lock, tag);
1498 deactivate_super(zfsvfs->z_sb);
1500 dmu_objset_disown(zfsvfs->z_os, B_TRUE, zfsvfs);
1501 zfsvfs_free(zfsvfs);
1506 zfs_ioc_pool_create(zfs_cmd_t *zc)
1509 nvlist_t *config, *props = NULL;
1510 nvlist_t *rootprops = NULL;
1511 nvlist_t *zplprops = NULL;
1512 dsl_crypto_params_t *dcp = NULL;
1513 char *spa_name = zc->zc_name;
1515 if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
1516 zc->zc_iflags, &config)))
1519 if (zc->zc_nvlist_src_size != 0 && (error =
1520 get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
1521 zc->zc_iflags, &props))) {
1522 nvlist_free(config);
1527 nvlist_t *nvl = NULL;
1528 nvlist_t *hidden_args = NULL;
1529 uint64_t version = SPA_VERSION;
1532 (void) nvlist_lookup_uint64(props,
1533 zpool_prop_to_name(ZPOOL_PROP_VERSION), &version);
1534 if (!SPA_VERSION_IS_SUPPORTED(version)) {
1535 error = SET_ERROR(EINVAL);
1536 goto pool_props_bad;
1538 (void) nvlist_lookup_nvlist(props, ZPOOL_ROOTFS_PROPS, &nvl);
1540 error = nvlist_dup(nvl, &rootprops, KM_SLEEP);
1542 nvlist_free(config);
1546 (void) nvlist_remove_all(props, ZPOOL_ROOTFS_PROPS);
1549 (void) nvlist_lookup_nvlist(props, ZPOOL_HIDDEN_ARGS,
1551 error = dsl_crypto_params_create_nvlist(DCP_CMD_NONE,
1552 rootprops, hidden_args, &dcp);
1554 nvlist_free(config);
1558 (void) nvlist_remove_all(props, ZPOOL_HIDDEN_ARGS);
1560 VERIFY(nvlist_alloc(&zplprops, NV_UNIQUE_NAME, KM_SLEEP) == 0);
1561 error = zfs_fill_zplprops_root(version, rootprops,
1564 goto pool_props_bad;
1566 if (nvlist_lookup_string(props,
1567 zpool_prop_to_name(ZPOOL_PROP_TNAME), &tname) == 0)
1571 error = spa_create(zc->zc_name, config, props, zplprops, dcp);
1574 * Set the remaining root properties
1576 if (!error && (error = zfs_set_prop_nvlist(spa_name,
1577 ZPROP_SRC_LOCAL, rootprops, NULL)) != 0)
1578 (void) spa_destroy(spa_name);
1581 nvlist_free(rootprops);
1582 nvlist_free(zplprops);
1583 nvlist_free(config);
1585 dsl_crypto_params_free(dcp, !!error);
1591 zfs_ioc_pool_destroy(zfs_cmd_t *zc)
1594 zfs_log_history(zc);
1595 error = spa_destroy(zc->zc_name);
1601 zfs_ioc_pool_import(zfs_cmd_t *zc)
1603 nvlist_t *config, *props = NULL;
1607 if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
1608 zc->zc_iflags, &config)) != 0)
1611 if (zc->zc_nvlist_src_size != 0 && (error =
1612 get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
1613 zc->zc_iflags, &props))) {
1614 nvlist_free(config);
1618 if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &guid) != 0 ||
1619 guid != zc->zc_guid)
1620 error = SET_ERROR(EINVAL);
1622 error = spa_import(zc->zc_name, config, props, zc->zc_cookie);
1624 if (zc->zc_nvlist_dst != 0) {
1627 if ((err = put_nvlist(zc, config)) != 0)
1631 nvlist_free(config);
1638 zfs_ioc_pool_export(zfs_cmd_t *zc)
1641 boolean_t force = (boolean_t)zc->zc_cookie;
1642 boolean_t hardforce = (boolean_t)zc->zc_guid;
1644 zfs_log_history(zc);
1645 error = spa_export(zc->zc_name, NULL, force, hardforce);
1651 zfs_ioc_pool_configs(zfs_cmd_t *zc)
1656 if ((configs = spa_all_configs(&zc->zc_cookie)) == NULL)
1657 return (SET_ERROR(EEXIST));
1659 error = put_nvlist(zc, configs);
1661 nvlist_free(configs);
1668 * zc_name name of the pool
1671 * zc_cookie real errno
1672 * zc_nvlist_dst config nvlist
1673 * zc_nvlist_dst_size size of config nvlist
1676 zfs_ioc_pool_stats(zfs_cmd_t *zc)
1682 error = spa_get_stats(zc->zc_name, &config, zc->zc_value,
1683 sizeof (zc->zc_value));
1685 if (config != NULL) {
1686 ret = put_nvlist(zc, config);
1687 nvlist_free(config);
1690 * The config may be present even if 'error' is non-zero.
1691 * In this case we return success, and preserve the real errno
1694 zc->zc_cookie = error;
1703 * Try to import the given pool, returning pool stats as appropriate so that
1704 * user land knows which devices are available and overall pool health.
1707 zfs_ioc_pool_tryimport(zfs_cmd_t *zc)
1709 nvlist_t *tryconfig, *config = NULL;
1712 if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
1713 zc->zc_iflags, &tryconfig)) != 0)
1716 config = spa_tryimport(tryconfig);
1718 nvlist_free(tryconfig);
1721 return (SET_ERROR(EINVAL));
1723 error = put_nvlist(zc, config);
1724 nvlist_free(config);
1731 * zc_name name of the pool
1732 * zc_cookie scan func (pool_scan_func_t)
1733 * zc_flags scrub pause/resume flag (pool_scrub_cmd_t)
1736 zfs_ioc_pool_scan(zfs_cmd_t *zc)
1741 if (zc->zc_flags >= POOL_SCRUB_FLAGS_END)
1742 return (SET_ERROR(EINVAL));
1744 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
1747 if (zc->zc_flags == POOL_SCRUB_PAUSE)
1748 error = spa_scrub_pause_resume(spa, POOL_SCRUB_PAUSE);
1749 else if (zc->zc_cookie == POOL_SCAN_NONE)
1750 error = spa_scan_stop(spa);
1752 error = spa_scan(spa, zc->zc_cookie);
1754 spa_close(spa, FTAG);
1760 zfs_ioc_pool_freeze(zfs_cmd_t *zc)
1765 error = spa_open(zc->zc_name, &spa, FTAG);
1768 spa_close(spa, FTAG);
1774 zfs_ioc_pool_upgrade(zfs_cmd_t *zc)
1779 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
1782 if (zc->zc_cookie < spa_version(spa) ||
1783 !SPA_VERSION_IS_SUPPORTED(zc->zc_cookie)) {
1784 spa_close(spa, FTAG);
1785 return (SET_ERROR(EINVAL));
1788 spa_upgrade(spa, zc->zc_cookie);
1789 spa_close(spa, FTAG);
1795 zfs_ioc_pool_get_history(zfs_cmd_t *zc)
1802 if ((size = zc->zc_history_len) == 0)
1803 return (SET_ERROR(EINVAL));
1805 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
1808 if (spa_version(spa) < SPA_VERSION_ZPOOL_HISTORY) {
1809 spa_close(spa, FTAG);
1810 return (SET_ERROR(ENOTSUP));
1813 hist_buf = vmem_alloc(size, KM_SLEEP);
1814 if ((error = spa_history_get(spa, &zc->zc_history_offset,
1815 &zc->zc_history_len, hist_buf)) == 0) {
1816 error = ddi_copyout(hist_buf,
1817 (void *)(uintptr_t)zc->zc_history,
1818 zc->zc_history_len, zc->zc_iflags);
1821 spa_close(spa, FTAG);
1822 vmem_free(hist_buf, size);
1827 zfs_ioc_pool_reguid(zfs_cmd_t *zc)
1832 error = spa_open(zc->zc_name, &spa, FTAG);
1834 error = spa_change_guid(spa);
1835 spa_close(spa, FTAG);
1841 zfs_ioc_dsobj_to_dsname(zfs_cmd_t *zc)
1843 return (dsl_dsobj_to_dsname(zc->zc_name, zc->zc_obj, zc->zc_value));
1848 * zc_name name of filesystem
1849 * zc_obj object to find
1852 * zc_value name of object
1855 zfs_ioc_obj_to_path(zfs_cmd_t *zc)
1860 /* XXX reading from objset not owned */
1861 if ((error = dmu_objset_hold_flags(zc->zc_name, B_TRUE,
1864 if (dmu_objset_type(os) != DMU_OST_ZFS) {
1865 dmu_objset_rele_flags(os, B_TRUE, FTAG);
1866 return (SET_ERROR(EINVAL));
1868 error = zfs_obj_to_path(os, zc->zc_obj, zc->zc_value,
1869 sizeof (zc->zc_value));
1870 dmu_objset_rele_flags(os, B_TRUE, FTAG);
1877 * zc_name name of filesystem
1878 * zc_obj object to find
1881 * zc_stat stats on object
1882 * zc_value path to object
1885 zfs_ioc_obj_to_stats(zfs_cmd_t *zc)
1890 /* XXX reading from objset not owned */
1891 if ((error = dmu_objset_hold_flags(zc->zc_name, B_TRUE,
1894 if (dmu_objset_type(os) != DMU_OST_ZFS) {
1895 dmu_objset_rele_flags(os, B_TRUE, FTAG);
1896 return (SET_ERROR(EINVAL));
1898 error = zfs_obj_to_stats(os, zc->zc_obj, &zc->zc_stat, zc->zc_value,
1899 sizeof (zc->zc_value));
1900 dmu_objset_rele_flags(os, B_TRUE, FTAG);
1906 zfs_ioc_vdev_add(zfs_cmd_t *zc)
1912 error = spa_open(zc->zc_name, &spa, FTAG);
1916 error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
1917 zc->zc_iflags, &config);
1919 error = spa_vdev_add(spa, config);
1920 nvlist_free(config);
1922 spa_close(spa, FTAG);
1928 * zc_name name of the pool
1929 * zc_guid guid of vdev to remove
1930 * zc_cookie cancel removal
1933 zfs_ioc_vdev_remove(zfs_cmd_t *zc)
1938 error = spa_open(zc->zc_name, &spa, FTAG);
1941 if (zc->zc_cookie != 0) {
1942 error = spa_vdev_remove_cancel(spa);
1944 error = spa_vdev_remove(spa, zc->zc_guid, B_FALSE);
1946 spa_close(spa, FTAG);
1951 zfs_ioc_vdev_set_state(zfs_cmd_t *zc)
1955 vdev_state_t newstate = VDEV_STATE_UNKNOWN;
1957 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
1959 switch (zc->zc_cookie) {
1960 case VDEV_STATE_ONLINE:
1961 error = vdev_online(spa, zc->zc_guid, zc->zc_obj, &newstate);
1964 case VDEV_STATE_OFFLINE:
1965 error = vdev_offline(spa, zc->zc_guid, zc->zc_obj);
1968 case VDEV_STATE_FAULTED:
1969 if (zc->zc_obj != VDEV_AUX_ERR_EXCEEDED &&
1970 zc->zc_obj != VDEV_AUX_EXTERNAL &&
1971 zc->zc_obj != VDEV_AUX_EXTERNAL_PERSIST)
1972 zc->zc_obj = VDEV_AUX_ERR_EXCEEDED;
1974 error = vdev_fault(spa, zc->zc_guid, zc->zc_obj);
1977 case VDEV_STATE_DEGRADED:
1978 if (zc->zc_obj != VDEV_AUX_ERR_EXCEEDED &&
1979 zc->zc_obj != VDEV_AUX_EXTERNAL)
1980 zc->zc_obj = VDEV_AUX_ERR_EXCEEDED;
1982 error = vdev_degrade(spa, zc->zc_guid, zc->zc_obj);
1986 error = SET_ERROR(EINVAL);
1988 zc->zc_cookie = newstate;
1989 spa_close(spa, FTAG);
1994 zfs_ioc_vdev_attach(zfs_cmd_t *zc)
1997 int replacing = zc->zc_cookie;
2001 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
2004 if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
2005 zc->zc_iflags, &config)) == 0) {
2006 error = spa_vdev_attach(spa, zc->zc_guid, config, replacing);
2007 nvlist_free(config);
2010 spa_close(spa, FTAG);
2015 zfs_ioc_vdev_detach(zfs_cmd_t *zc)
2020 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
2023 error = spa_vdev_detach(spa, zc->zc_guid, 0, B_FALSE);
2025 spa_close(spa, FTAG);
2030 zfs_ioc_vdev_split(zfs_cmd_t *zc)
2033 nvlist_t *config, *props = NULL;
2035 boolean_t exp = !!(zc->zc_cookie & ZPOOL_EXPORT_AFTER_SPLIT);
2037 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
2040 if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
2041 zc->zc_iflags, &config))) {
2042 spa_close(spa, FTAG);
2046 if (zc->zc_nvlist_src_size != 0 && (error =
2047 get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
2048 zc->zc_iflags, &props))) {
2049 spa_close(spa, FTAG);
2050 nvlist_free(config);
2054 error = spa_vdev_split_mirror(spa, zc->zc_string, config, props, exp);
2056 spa_close(spa, FTAG);
2058 nvlist_free(config);
2065 zfs_ioc_vdev_setpath(zfs_cmd_t *zc)
2068 char *path = zc->zc_value;
2069 uint64_t guid = zc->zc_guid;
2072 error = spa_open(zc->zc_name, &spa, FTAG);
2076 error = spa_vdev_setpath(spa, guid, path);
2077 spa_close(spa, FTAG);
2082 zfs_ioc_vdev_setfru(zfs_cmd_t *zc)
2085 char *fru = zc->zc_value;
2086 uint64_t guid = zc->zc_guid;
2089 error = spa_open(zc->zc_name, &spa, FTAG);
2093 error = spa_vdev_setfru(spa, guid, fru);
2094 spa_close(spa, FTAG);
2099 zfs_ioc_objset_stats_impl(zfs_cmd_t *zc, objset_t *os)
2104 dmu_objset_fast_stat(os, &zc->zc_objset_stats);
2106 if (zc->zc_nvlist_dst != 0 &&
2107 (error = dsl_prop_get_all(os, &nv)) == 0) {
2108 dmu_objset_stats(os, nv);
2110 * NB: zvol_get_stats() will read the objset contents,
2111 * which we aren't supposed to do with a
2112 * DS_MODE_USER hold, because it could be
2113 * inconsistent. So this is a bit of a workaround...
2114 * XXX reading with out owning
2116 if (!zc->zc_objset_stats.dds_inconsistent &&
2117 dmu_objset_type(os) == DMU_OST_ZVOL) {
2118 error = zvol_get_stats(os, nv);
2126 error = put_nvlist(zc, nv);
2135 * zc_name name of filesystem
2136 * zc_nvlist_dst_size size of buffer for property nvlist
2139 * zc_objset_stats stats
2140 * zc_nvlist_dst property nvlist
2141 * zc_nvlist_dst_size size of property nvlist
2144 zfs_ioc_objset_stats(zfs_cmd_t *zc)
2149 error = dmu_objset_hold(zc->zc_name, FTAG, &os);
2151 error = zfs_ioc_objset_stats_impl(zc, os);
2152 dmu_objset_rele(os, FTAG);
2160 * zc_name name of filesystem
2161 * zc_nvlist_dst_size size of buffer for property nvlist
2164 * zc_nvlist_dst received property nvlist
2165 * zc_nvlist_dst_size size of received property nvlist
2167 * Gets received properties (distinct from local properties on or after
2168 * SPA_VERSION_RECVD_PROPS) for callers who want to differentiate received from
2169 * local property values.
2172 zfs_ioc_objset_recvd_props(zfs_cmd_t *zc)
2178 * Without this check, we would return local property values if the
2179 * caller has not already received properties on or after
2180 * SPA_VERSION_RECVD_PROPS.
2182 if (!dsl_prop_get_hasrecvd(zc->zc_name))
2183 return (SET_ERROR(ENOTSUP));
2185 if (zc->zc_nvlist_dst != 0 &&
2186 (error = dsl_prop_get_received(zc->zc_name, &nv)) == 0) {
2187 error = put_nvlist(zc, nv);
2195 nvl_add_zplprop(objset_t *os, nvlist_t *props, zfs_prop_t prop)
2201 * zfs_get_zplprop() will either find a value or give us
2202 * the default value (if there is one).
2204 if ((error = zfs_get_zplprop(os, prop, &value)) != 0)
2206 VERIFY(nvlist_add_uint64(props, zfs_prop_to_name(prop), value) == 0);
2212 * zc_name name of filesystem
2213 * zc_nvlist_dst_size size of buffer for zpl property nvlist
2216 * zc_nvlist_dst zpl property nvlist
2217 * zc_nvlist_dst_size size of zpl property nvlist
2220 zfs_ioc_objset_zplprops(zfs_cmd_t *zc)
2225 /* XXX reading without owning */
2226 if ((err = dmu_objset_hold(zc->zc_name, FTAG, &os)))
2229 dmu_objset_fast_stat(os, &zc->zc_objset_stats);
2232 * NB: nvl_add_zplprop() will read the objset contents,
2233 * which we aren't supposed to do with a DS_MODE_USER
2234 * hold, because it could be inconsistent.
2236 if (zc->zc_nvlist_dst != 0 &&
2237 !zc->zc_objset_stats.dds_inconsistent &&
2238 dmu_objset_type(os) == DMU_OST_ZFS) {
2241 VERIFY(nvlist_alloc(&nv, NV_UNIQUE_NAME, KM_SLEEP) == 0);
2242 if ((err = nvl_add_zplprop(os, nv, ZFS_PROP_VERSION)) == 0 &&
2243 (err = nvl_add_zplprop(os, nv, ZFS_PROP_NORMALIZE)) == 0 &&
2244 (err = nvl_add_zplprop(os, nv, ZFS_PROP_UTF8ONLY)) == 0 &&
2245 (err = nvl_add_zplprop(os, nv, ZFS_PROP_CASE)) == 0)
2246 err = put_nvlist(zc, nv);
2249 err = SET_ERROR(ENOENT);
2251 dmu_objset_rele(os, FTAG);
2257 * zc_name name of filesystem
2258 * zc_cookie zap cursor
2259 * zc_nvlist_dst_size size of buffer for property nvlist
2262 * zc_name name of next filesystem
2263 * zc_cookie zap cursor
2264 * zc_objset_stats stats
2265 * zc_nvlist_dst property nvlist
2266 * zc_nvlist_dst_size size of property nvlist
2269 zfs_ioc_dataset_list_next(zfs_cmd_t *zc)
2274 size_t orig_len = strlen(zc->zc_name);
2277 if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os))) {
2278 if (error == ENOENT)
2279 error = SET_ERROR(ESRCH);
2283 p = strrchr(zc->zc_name, '/');
2284 if (p == NULL || p[1] != '\0')
2285 (void) strlcat(zc->zc_name, "/", sizeof (zc->zc_name));
2286 p = zc->zc_name + strlen(zc->zc_name);
2289 error = dmu_dir_list_next(os,
2290 sizeof (zc->zc_name) - (p - zc->zc_name), p,
2291 NULL, &zc->zc_cookie);
2292 if (error == ENOENT)
2293 error = SET_ERROR(ESRCH);
2294 } while (error == 0 && zfs_dataset_name_hidden(zc->zc_name));
2295 dmu_objset_rele(os, FTAG);
2298 * If it's an internal dataset (ie. with a '$' in its name),
2299 * don't try to get stats for it, otherwise we'll return ENOENT.
2301 if (error == 0 && strchr(zc->zc_name, '$') == NULL) {
2302 error = zfs_ioc_objset_stats(zc); /* fill in the stats */
2303 if (error == ENOENT) {
2304 /* We lost a race with destroy, get the next one. */
2305 zc->zc_name[orig_len] = '\0';
2314 * zc_name name of filesystem
2315 * zc_cookie zap cursor
2316 * zc_nvlist_dst_size size of buffer for property nvlist
2319 * zc_name name of next snapshot
2320 * zc_objset_stats stats
2321 * zc_nvlist_dst property nvlist
2322 * zc_nvlist_dst_size size of property nvlist
2325 zfs_ioc_snapshot_list_next(zfs_cmd_t *zc)
2330 error = dmu_objset_hold(zc->zc_name, FTAG, &os);
2332 return (error == ENOENT ? ESRCH : error);
2336 * A dataset name of maximum length cannot have any snapshots,
2337 * so exit immediately.
2339 if (strlcat(zc->zc_name, "@", sizeof (zc->zc_name)) >=
2340 ZFS_MAX_DATASET_NAME_LEN) {
2341 dmu_objset_rele(os, FTAG);
2342 return (SET_ERROR(ESRCH));
2345 error = dmu_snapshot_list_next(os,
2346 sizeof (zc->zc_name) - strlen(zc->zc_name),
2347 zc->zc_name + strlen(zc->zc_name), &zc->zc_obj, &zc->zc_cookie,
2350 if (error == 0 && !zc->zc_simple) {
2352 dsl_pool_t *dp = os->os_dsl_dataset->ds_dir->dd_pool;
2354 error = dsl_dataset_hold_obj(dp, zc->zc_obj, FTAG, &ds);
2358 error = dmu_objset_from_ds(ds, &ossnap);
2360 error = zfs_ioc_objset_stats_impl(zc, ossnap);
2361 dsl_dataset_rele(ds, FTAG);
2363 } else if (error == ENOENT) {
2364 error = SET_ERROR(ESRCH);
2367 dmu_objset_rele(os, FTAG);
2368 /* if we failed, undo the @ that we tacked on to zc_name */
2370 *strchr(zc->zc_name, '@') = '\0';
2375 zfs_prop_set_userquota(const char *dsname, nvpair_t *pair)
2377 const char *propname = nvpair_name(pair);
2379 unsigned int vallen;
2382 zfs_userquota_prop_t type;
2388 if (nvpair_type(pair) == DATA_TYPE_NVLIST) {
2390 VERIFY(nvpair_value_nvlist(pair, &attrs) == 0);
2391 if (nvlist_lookup_nvpair(attrs, ZPROP_VALUE,
2393 return (SET_ERROR(EINVAL));
2397 * A correctly constructed propname is encoded as
2398 * userquota@<rid>-<domain>.
2400 if ((dash = strchr(propname, '-')) == NULL ||
2401 nvpair_value_uint64_array(pair, &valary, &vallen) != 0 ||
2403 return (SET_ERROR(EINVAL));
2410 err = zfsvfs_hold(dsname, FTAG, &zfsvfs, B_FALSE);
2412 err = zfs_set_userquota(zfsvfs, type, domain, rid, quota);
2413 zfsvfs_rele(zfsvfs, FTAG);
2420 * If the named property is one that has a special function to set its value,
2421 * return 0 on success and a positive error code on failure; otherwise if it is
2422 * not one of the special properties handled by this function, return -1.
2424 * XXX: It would be better for callers of the property interface if we handled
2425 * these special cases in dsl_prop.c (in the dsl layer).
2428 zfs_prop_set_special(const char *dsname, zprop_source_t source,
2431 const char *propname = nvpair_name(pair);
2432 zfs_prop_t prop = zfs_name_to_prop(propname);
2433 uint64_t intval = 0;
2434 char *strval = NULL;
2437 if (prop == ZPROP_INVAL) {
2438 if (zfs_prop_userquota(propname))
2439 return (zfs_prop_set_userquota(dsname, pair));
2443 if (nvpair_type(pair) == DATA_TYPE_NVLIST) {
2445 VERIFY(nvpair_value_nvlist(pair, &attrs) == 0);
2446 VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE,
2450 /* all special properties are numeric except for keylocation */
2451 if (zfs_prop_get_type(prop) == PROP_TYPE_STRING) {
2452 strval = fnvpair_value_string(pair);
2454 intval = fnvpair_value_uint64(pair);
2458 case ZFS_PROP_QUOTA:
2459 err = dsl_dir_set_quota(dsname, source, intval);
2461 case ZFS_PROP_REFQUOTA:
2462 err = dsl_dataset_set_refquota(dsname, source, intval);
2464 case ZFS_PROP_FILESYSTEM_LIMIT:
2465 case ZFS_PROP_SNAPSHOT_LIMIT:
2466 if (intval == UINT64_MAX) {
2467 /* clearing the limit, just do it */
2470 err = dsl_dir_activate_fs_ss_limit(dsname);
2473 * Set err to -1 to force the zfs_set_prop_nvlist code down the
2474 * default path to set the value in the nvlist.
2479 case ZFS_PROP_KEYLOCATION:
2480 err = dsl_crypto_can_set_keylocation(dsname, strval);
2483 * Set err to -1 to force the zfs_set_prop_nvlist code down the
2484 * default path to set the value in the nvlist.
2489 case ZFS_PROP_RESERVATION:
2490 err = dsl_dir_set_reservation(dsname, source, intval);
2492 case ZFS_PROP_REFRESERVATION:
2493 err = dsl_dataset_set_refreservation(dsname, source, intval);
2495 case ZFS_PROP_VOLSIZE:
2496 err = zvol_set_volsize(dsname, intval);
2498 case ZFS_PROP_SNAPDEV:
2499 err = zvol_set_snapdev(dsname, source, intval);
2501 case ZFS_PROP_VOLMODE:
2502 err = zvol_set_volmode(dsname, source, intval);
2504 case ZFS_PROP_VERSION:
2508 if ((err = zfsvfs_hold(dsname, FTAG, &zfsvfs, B_TRUE)) != 0)
2511 err = zfs_set_version(zfsvfs, intval);
2512 zfsvfs_rele(zfsvfs, FTAG);
2514 if (err == 0 && intval >= ZPL_VERSION_USERSPACE) {
2517 zc = kmem_zalloc(sizeof (zfs_cmd_t), KM_SLEEP);
2518 (void) strcpy(zc->zc_name, dsname);
2519 (void) zfs_ioc_userspace_upgrade(zc);
2520 (void) zfs_ioc_id_quota_upgrade(zc);
2521 kmem_free(zc, sizeof (zfs_cmd_t));
2533 * This function is best effort. If it fails to set any of the given properties,
2534 * it continues to set as many as it can and returns the last error
2535 * encountered. If the caller provides a non-NULL errlist, it will be filled in
2536 * with the list of names of all the properties that failed along with the
2537 * corresponding error numbers.
2539 * If every property is set successfully, zero is returned and errlist is not
2543 zfs_set_prop_nvlist(const char *dsname, zprop_source_t source, nvlist_t *nvl,
2552 nvlist_t *genericnvl = fnvlist_alloc();
2553 nvlist_t *retrynvl = fnvlist_alloc();
2556 while ((pair = nvlist_next_nvpair(nvl, pair)) != NULL) {
2557 const char *propname = nvpair_name(pair);
2558 zfs_prop_t prop = zfs_name_to_prop(propname);
2561 /* decode the property value */
2563 if (nvpair_type(pair) == DATA_TYPE_NVLIST) {
2565 attrs = fnvpair_value_nvlist(pair);
2566 if (nvlist_lookup_nvpair(attrs, ZPROP_VALUE,
2568 err = SET_ERROR(EINVAL);
2571 /* Validate value type */
2572 if (err == 0 && source == ZPROP_SRC_INHERITED) {
2573 /* inherited properties are expected to be booleans */
2574 if (nvpair_type(propval) != DATA_TYPE_BOOLEAN)
2575 err = SET_ERROR(EINVAL);
2576 } else if (err == 0 && prop == ZPROP_INVAL) {
2577 if (zfs_prop_user(propname)) {
2578 if (nvpair_type(propval) != DATA_TYPE_STRING)
2579 err = SET_ERROR(EINVAL);
2580 } else if (zfs_prop_userquota(propname)) {
2581 if (nvpair_type(propval) !=
2582 DATA_TYPE_UINT64_ARRAY)
2583 err = SET_ERROR(EINVAL);
2585 err = SET_ERROR(EINVAL);
2587 } else if (err == 0) {
2588 if (nvpair_type(propval) == DATA_TYPE_STRING) {
2589 if (zfs_prop_get_type(prop) != PROP_TYPE_STRING)
2590 err = SET_ERROR(EINVAL);
2591 } else if (nvpair_type(propval) == DATA_TYPE_UINT64) {
2594 intval = fnvpair_value_uint64(propval);
2596 switch (zfs_prop_get_type(prop)) {
2597 case PROP_TYPE_NUMBER:
2599 case PROP_TYPE_STRING:
2600 err = SET_ERROR(EINVAL);
2602 case PROP_TYPE_INDEX:
2603 if (zfs_prop_index_to_string(prop,
2604 intval, &unused) != 0)
2605 err = SET_ERROR(EINVAL);
2609 "unknown property type");
2612 err = SET_ERROR(EINVAL);
2616 /* Validate permissions */
2618 err = zfs_check_settable(dsname, pair, CRED());
2621 if (source == ZPROP_SRC_INHERITED)
2622 err = -1; /* does not need special handling */
2624 err = zfs_prop_set_special(dsname, source,
2628 * For better performance we build up a list of
2629 * properties to set in a single transaction.
2631 err = nvlist_add_nvpair(genericnvl, pair);
2632 } else if (err != 0 && nvl != retrynvl) {
2634 * This may be a spurious error caused by
2635 * receiving quota and reservation out of order.
2636 * Try again in a second pass.
2638 err = nvlist_add_nvpair(retrynvl, pair);
2643 if (errlist != NULL)
2644 fnvlist_add_int32(errlist, propname, err);
2649 if (nvl != retrynvl && !nvlist_empty(retrynvl)) {
2654 if (!nvlist_empty(genericnvl) &&
2655 dsl_props_set(dsname, source, genericnvl) != 0) {
2657 * If this fails, we still want to set as many properties as we
2658 * can, so try setting them individually.
2661 while ((pair = nvlist_next_nvpair(genericnvl, pair)) != NULL) {
2662 const char *propname = nvpair_name(pair);
2666 if (nvpair_type(pair) == DATA_TYPE_NVLIST) {
2668 attrs = fnvpair_value_nvlist(pair);
2669 propval = fnvlist_lookup_nvpair(attrs,
2673 if (nvpair_type(propval) == DATA_TYPE_STRING) {
2674 strval = fnvpair_value_string(propval);
2675 err = dsl_prop_set_string(dsname, propname,
2677 } else if (nvpair_type(propval) == DATA_TYPE_BOOLEAN) {
2678 err = dsl_prop_inherit(dsname, propname,
2681 intval = fnvpair_value_uint64(propval);
2682 err = dsl_prop_set_int(dsname, propname, source,
2687 if (errlist != NULL) {
2688 fnvlist_add_int32(errlist, propname,
2695 nvlist_free(genericnvl);
2696 nvlist_free(retrynvl);
2702 * Check that all the properties are valid user properties.
2705 zfs_check_userprops(const char *fsname, nvlist_t *nvl)
2707 nvpair_t *pair = NULL;
2710 while ((pair = nvlist_next_nvpair(nvl, pair)) != NULL) {
2711 const char *propname = nvpair_name(pair);
2713 if (!zfs_prop_user(propname) ||
2714 nvpair_type(pair) != DATA_TYPE_STRING)
2715 return (SET_ERROR(EINVAL));
2717 if ((error = zfs_secpolicy_write_perms(fsname,
2718 ZFS_DELEG_PERM_USERPROP, CRED())))
2721 if (strlen(propname) >= ZAP_MAXNAMELEN)
2722 return (SET_ERROR(ENAMETOOLONG));
2724 if (strlen(fnvpair_value_string(pair)) >= ZAP_MAXVALUELEN)
2725 return (SET_ERROR(E2BIG));
2731 props_skip(nvlist_t *props, nvlist_t *skipped, nvlist_t **newprops)
2735 VERIFY(nvlist_alloc(newprops, NV_UNIQUE_NAME, KM_SLEEP) == 0);
2738 while ((pair = nvlist_next_nvpair(props, pair)) != NULL) {
2739 if (nvlist_exists(skipped, nvpair_name(pair)))
2742 VERIFY(nvlist_add_nvpair(*newprops, pair) == 0);
2747 clear_received_props(const char *dsname, nvlist_t *props,
2751 nvlist_t *cleared_props = NULL;
2752 props_skip(props, skipped, &cleared_props);
2753 if (!nvlist_empty(cleared_props)) {
2755 * Acts on local properties until the dataset has received
2756 * properties at least once on or after SPA_VERSION_RECVD_PROPS.
2758 zprop_source_t flags = (ZPROP_SRC_NONE |
2759 (dsl_prop_get_hasrecvd(dsname) ? ZPROP_SRC_RECEIVED : 0));
2760 err = zfs_set_prop_nvlist(dsname, flags, cleared_props, NULL);
2762 nvlist_free(cleared_props);
2768 * zc_name name of filesystem
2769 * zc_value name of property to set
2770 * zc_nvlist_src{_size} nvlist of properties to apply
2771 * zc_cookie received properties flag
2774 * zc_nvlist_dst{_size} error for each unapplied received property
2777 zfs_ioc_set_prop(zfs_cmd_t *zc)
2780 boolean_t received = zc->zc_cookie;
2781 zprop_source_t source = (received ? ZPROP_SRC_RECEIVED :
2786 if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
2787 zc->zc_iflags, &nvl)) != 0)
2791 nvlist_t *origprops;
2793 if (dsl_prop_get_received(zc->zc_name, &origprops) == 0) {
2794 (void) clear_received_props(zc->zc_name,
2796 nvlist_free(origprops);
2799 error = dsl_prop_set_hasrecvd(zc->zc_name);
2802 errors = fnvlist_alloc();
2804 error = zfs_set_prop_nvlist(zc->zc_name, source, nvl, errors);
2806 if (zc->zc_nvlist_dst != 0 && errors != NULL) {
2807 (void) put_nvlist(zc, errors);
2810 nvlist_free(errors);
2817 * zc_name name of filesystem
2818 * zc_value name of property to inherit
2819 * zc_cookie revert to received value if TRUE
2824 zfs_ioc_inherit_prop(zfs_cmd_t *zc)
2826 const char *propname = zc->zc_value;
2827 zfs_prop_t prop = zfs_name_to_prop(propname);
2828 boolean_t received = zc->zc_cookie;
2829 zprop_source_t source = (received
2830 ? ZPROP_SRC_NONE /* revert to received value, if any */
2831 : ZPROP_SRC_INHERITED); /* explicitly inherit */
2839 * Only check this in the non-received case. We want to allow
2840 * 'inherit -S' to revert non-inheritable properties like quota
2841 * and reservation to the received or default values even though
2842 * they are not considered inheritable.
2844 if (prop != ZPROP_INVAL && !zfs_prop_inheritable(prop))
2845 return (SET_ERROR(EINVAL));
2848 if (prop == ZPROP_INVAL) {
2849 if (!zfs_prop_user(propname))
2850 return (SET_ERROR(EINVAL));
2852 type = PROP_TYPE_STRING;
2853 } else if (prop == ZFS_PROP_VOLSIZE || prop == ZFS_PROP_VERSION) {
2854 return (SET_ERROR(EINVAL));
2856 type = zfs_prop_get_type(prop);
2860 * zfs_prop_set_special() expects properties in the form of an
2861 * nvpair with type info.
2863 dummy = fnvlist_alloc();
2866 case PROP_TYPE_STRING:
2867 VERIFY(0 == nvlist_add_string(dummy, propname, ""));
2869 case PROP_TYPE_NUMBER:
2870 case PROP_TYPE_INDEX:
2871 VERIFY(0 == nvlist_add_uint64(dummy, propname, 0));
2874 err = SET_ERROR(EINVAL);
2878 pair = nvlist_next_nvpair(dummy, NULL);
2880 err = SET_ERROR(EINVAL);
2882 err = zfs_prop_set_special(zc->zc_name, source, pair);
2883 if (err == -1) /* property is not "special", needs handling */
2884 err = dsl_prop_inherit(zc->zc_name, zc->zc_value,
2894 zfs_ioc_pool_set_props(zfs_cmd_t *zc)
2901 if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
2902 zc->zc_iflags, &props)))
2906 * If the only property is the configfile, then just do a spa_lookup()
2907 * to handle the faulted case.
2909 pair = nvlist_next_nvpair(props, NULL);
2910 if (pair != NULL && strcmp(nvpair_name(pair),
2911 zpool_prop_to_name(ZPOOL_PROP_CACHEFILE)) == 0 &&
2912 nvlist_next_nvpair(props, pair) == NULL) {
2913 mutex_enter(&spa_namespace_lock);
2914 if ((spa = spa_lookup(zc->zc_name)) != NULL) {
2915 spa_configfile_set(spa, props, B_FALSE);
2916 spa_write_cachefile(spa, B_FALSE, B_TRUE);
2918 mutex_exit(&spa_namespace_lock);
2925 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) {
2930 error = spa_prop_set(spa, props);
2933 spa_close(spa, FTAG);
2939 zfs_ioc_pool_get_props(zfs_cmd_t *zc)
2943 nvlist_t *nvp = NULL;
2945 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) {
2947 * If the pool is faulted, there may be properties we can still
2948 * get (such as altroot and cachefile), so attempt to get them
2951 mutex_enter(&spa_namespace_lock);
2952 if ((spa = spa_lookup(zc->zc_name)) != NULL)
2953 error = spa_prop_get(spa, &nvp);
2954 mutex_exit(&spa_namespace_lock);
2956 error = spa_prop_get(spa, &nvp);
2957 spa_close(spa, FTAG);
2960 if (error == 0 && zc->zc_nvlist_dst != 0)
2961 error = put_nvlist(zc, nvp);
2963 error = SET_ERROR(EFAULT);
2971 * zc_name name of filesystem
2972 * zc_nvlist_src{_size} nvlist of delegated permissions
2973 * zc_perm_action allow/unallow flag
2978 zfs_ioc_set_fsacl(zfs_cmd_t *zc)
2981 nvlist_t *fsaclnv = NULL;
2983 if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
2984 zc->zc_iflags, &fsaclnv)) != 0)
2988 * Verify nvlist is constructed correctly
2990 if ((error = zfs_deleg_verify_nvlist(fsaclnv)) != 0) {
2991 nvlist_free(fsaclnv);
2992 return (SET_ERROR(EINVAL));
2996 * If we don't have PRIV_SYS_MOUNT, then validate
2997 * that user is allowed to hand out each permission in
3001 error = secpolicy_zfs(CRED());
3003 if (zc->zc_perm_action == B_FALSE) {
3004 error = dsl_deleg_can_allow(zc->zc_name,
3007 error = dsl_deleg_can_unallow(zc->zc_name,
3013 error = dsl_deleg_set(zc->zc_name, fsaclnv, zc->zc_perm_action);
3015 nvlist_free(fsaclnv);
3021 * zc_name name of filesystem
3024 * zc_nvlist_src{_size} nvlist of delegated permissions
3027 zfs_ioc_get_fsacl(zfs_cmd_t *zc)
3032 if ((error = dsl_deleg_get(zc->zc_name, &nvp)) == 0) {
3033 error = put_nvlist(zc, nvp);
3042 zfs_create_cb(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx)
3044 zfs_creat_t *zct = arg;
3046 zfs_create_fs(os, cr, zct->zct_zplprops, tx);
3049 #define ZFS_PROP_UNDEFINED ((uint64_t)-1)
3053 * os parent objset pointer (NULL if root fs)
3054 * fuids_ok fuids allowed in this version of the spa?
3055 * sa_ok SAs allowed in this version of the spa?
3056 * createprops list of properties requested by creator
3059 * zplprops values for the zplprops we attach to the master node object
3060 * is_ci true if requested file system will be purely case-insensitive
3062 * Determine the settings for utf8only, normalization and
3063 * casesensitivity. Specific values may have been requested by the
3064 * creator and/or we can inherit values from the parent dataset. If
3065 * the file system is of too early a vintage, a creator can not
3066 * request settings for these properties, even if the requested
3067 * setting is the default value. We don't actually want to create dsl
3068 * properties for these, so remove them from the source nvlist after
3072 zfs_fill_zplprops_impl(objset_t *os, uint64_t zplver,
3073 boolean_t fuids_ok, boolean_t sa_ok, nvlist_t *createprops,
3074 nvlist_t *zplprops, boolean_t *is_ci)
3076 uint64_t sense = ZFS_PROP_UNDEFINED;
3077 uint64_t norm = ZFS_PROP_UNDEFINED;
3078 uint64_t u8 = ZFS_PROP_UNDEFINED;
3081 ASSERT(zplprops != NULL);
3083 if (os != NULL && os->os_phys->os_type != DMU_OST_ZFS)
3084 return (SET_ERROR(EINVAL));
3087 * Pull out creator prop choices, if any.
3090 (void) nvlist_lookup_uint64(createprops,
3091 zfs_prop_to_name(ZFS_PROP_VERSION), &zplver);
3092 (void) nvlist_lookup_uint64(createprops,
3093 zfs_prop_to_name(ZFS_PROP_NORMALIZE), &norm);
3094 (void) nvlist_remove_all(createprops,
3095 zfs_prop_to_name(ZFS_PROP_NORMALIZE));
3096 (void) nvlist_lookup_uint64(createprops,
3097 zfs_prop_to_name(ZFS_PROP_UTF8ONLY), &u8);
3098 (void) nvlist_remove_all(createprops,
3099 zfs_prop_to_name(ZFS_PROP_UTF8ONLY));
3100 (void) nvlist_lookup_uint64(createprops,
3101 zfs_prop_to_name(ZFS_PROP_CASE), &sense);
3102 (void) nvlist_remove_all(createprops,
3103 zfs_prop_to_name(ZFS_PROP_CASE));
3107 * If the zpl version requested is whacky or the file system
3108 * or pool is version is too "young" to support normalization
3109 * and the creator tried to set a value for one of the props,
3112 if ((zplver < ZPL_VERSION_INITIAL || zplver > ZPL_VERSION) ||
3113 (zplver >= ZPL_VERSION_FUID && !fuids_ok) ||
3114 (zplver >= ZPL_VERSION_SA && !sa_ok) ||
3115 (zplver < ZPL_VERSION_NORMALIZATION &&
3116 (norm != ZFS_PROP_UNDEFINED || u8 != ZFS_PROP_UNDEFINED ||
3117 sense != ZFS_PROP_UNDEFINED)))
3118 return (SET_ERROR(ENOTSUP));
3121 * Put the version in the zplprops
3123 VERIFY(nvlist_add_uint64(zplprops,
3124 zfs_prop_to_name(ZFS_PROP_VERSION), zplver) == 0);
3126 if (norm == ZFS_PROP_UNDEFINED &&
3127 (error = zfs_get_zplprop(os, ZFS_PROP_NORMALIZE, &norm)) != 0)
3129 VERIFY(nvlist_add_uint64(zplprops,
3130 zfs_prop_to_name(ZFS_PROP_NORMALIZE), norm) == 0);
3133 * If we're normalizing, names must always be valid UTF-8 strings.
3137 if (u8 == ZFS_PROP_UNDEFINED &&
3138 (error = zfs_get_zplprop(os, ZFS_PROP_UTF8ONLY, &u8)) != 0)
3140 VERIFY(nvlist_add_uint64(zplprops,
3141 zfs_prop_to_name(ZFS_PROP_UTF8ONLY), u8) == 0);
3143 if (sense == ZFS_PROP_UNDEFINED &&
3144 (error = zfs_get_zplprop(os, ZFS_PROP_CASE, &sense)) != 0)
3146 VERIFY(nvlist_add_uint64(zplprops,
3147 zfs_prop_to_name(ZFS_PROP_CASE), sense) == 0);
3150 *is_ci = (sense == ZFS_CASE_INSENSITIVE);
3156 zfs_fill_zplprops(const char *dataset, nvlist_t *createprops,
3157 nvlist_t *zplprops, boolean_t *is_ci)
3159 boolean_t fuids_ok, sa_ok;
3160 uint64_t zplver = ZPL_VERSION;
3161 objset_t *os = NULL;
3162 char parentname[ZFS_MAX_DATASET_NAME_LEN];
3168 (void) strlcpy(parentname, dataset, sizeof (parentname));
3169 cp = strrchr(parentname, '/');
3173 if ((error = spa_open(dataset, &spa, FTAG)) != 0)
3176 spa_vers = spa_version(spa);
3177 spa_close(spa, FTAG);
3179 zplver = zfs_zpl_version_map(spa_vers);
3180 fuids_ok = (zplver >= ZPL_VERSION_FUID);
3181 sa_ok = (zplver >= ZPL_VERSION_SA);
3184 * Open parent object set so we can inherit zplprop values.
3186 if ((error = dmu_objset_hold(parentname, FTAG, &os)) != 0)
3189 error = zfs_fill_zplprops_impl(os, zplver, fuids_ok, sa_ok, createprops,
3191 dmu_objset_rele(os, FTAG);
3196 zfs_fill_zplprops_root(uint64_t spa_vers, nvlist_t *createprops,
3197 nvlist_t *zplprops, boolean_t *is_ci)
3201 uint64_t zplver = ZPL_VERSION;
3204 zplver = zfs_zpl_version_map(spa_vers);
3205 fuids_ok = (zplver >= ZPL_VERSION_FUID);
3206 sa_ok = (zplver >= ZPL_VERSION_SA);
3208 error = zfs_fill_zplprops_impl(NULL, zplver, fuids_ok, sa_ok,
3209 createprops, zplprops, is_ci);
3215 * "type" -> dmu_objset_type_t (int32)
3216 * (optional) "props" -> { prop -> value }
3217 * (optional) "hidden_args" -> { "wkeydata" -> value }
3218 * raw uint8_t array of encryption wrapping key data (32 bytes)
3221 * outnvl: propname -> error code (int32)
3224 static const zfs_ioc_key_t zfs_keys_create[] = {
3225 {"type", DATA_TYPE_INT32, 0},
3226 {"props", DATA_TYPE_NVLIST, ZK_OPTIONAL},
3227 {"hidden_args", DATA_TYPE_NVLIST, ZK_OPTIONAL},
3231 zfs_ioc_create(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl)
3234 zfs_creat_t zct = { 0 };
3235 nvlist_t *nvprops = NULL;
3236 nvlist_t *hidden_args = NULL;
3237 void (*cbfunc)(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx);
3238 dmu_objset_type_t type;
3239 boolean_t is_insensitive = B_FALSE;
3240 dsl_crypto_params_t *dcp = NULL;
3242 type = (dmu_objset_type_t)fnvlist_lookup_int32(innvl, "type");
3243 (void) nvlist_lookup_nvlist(innvl, "props", &nvprops);
3244 (void) nvlist_lookup_nvlist(innvl, ZPOOL_HIDDEN_ARGS, &hidden_args);
3248 cbfunc = zfs_create_cb;
3252 cbfunc = zvol_create_cb;
3259 if (strchr(fsname, '@') ||
3260 strchr(fsname, '%'))
3261 return (SET_ERROR(EINVAL));
3263 zct.zct_props = nvprops;
3266 return (SET_ERROR(EINVAL));
3268 if (type == DMU_OST_ZVOL) {
3269 uint64_t volsize, volblocksize;
3271 if (nvprops == NULL)
3272 return (SET_ERROR(EINVAL));
3273 if (nvlist_lookup_uint64(nvprops,
3274 zfs_prop_to_name(ZFS_PROP_VOLSIZE), &volsize) != 0)
3275 return (SET_ERROR(EINVAL));
3277 if ((error = nvlist_lookup_uint64(nvprops,
3278 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE),
3279 &volblocksize)) != 0 && error != ENOENT)
3280 return (SET_ERROR(EINVAL));
3283 volblocksize = zfs_prop_default_numeric(
3284 ZFS_PROP_VOLBLOCKSIZE);
3286 if ((error = zvol_check_volblocksize(fsname,
3287 volblocksize)) != 0 ||
3288 (error = zvol_check_volsize(volsize,
3289 volblocksize)) != 0)
3291 } else if (type == DMU_OST_ZFS) {
3295 * We have to have normalization and
3296 * case-folding flags correct when we do the
3297 * file system creation, so go figure them out
3300 VERIFY(nvlist_alloc(&zct.zct_zplprops,
3301 NV_UNIQUE_NAME, KM_SLEEP) == 0);
3302 error = zfs_fill_zplprops(fsname, nvprops,
3303 zct.zct_zplprops, &is_insensitive);
3305 nvlist_free(zct.zct_zplprops);
3310 error = dsl_crypto_params_create_nvlist(DCP_CMD_NONE, nvprops,
3313 nvlist_free(zct.zct_zplprops);
3317 error = dmu_objset_create(fsname, type,
3318 is_insensitive ? DS_FLAG_CI_DATASET : 0, dcp, cbfunc, &zct);
3320 nvlist_free(zct.zct_zplprops);
3321 dsl_crypto_params_free(dcp, !!error);
3324 * It would be nice to do this atomically.
3327 error = zfs_set_prop_nvlist(fsname, ZPROP_SRC_LOCAL,
3334 * Volumes will return EBUSY and cannot be destroyed
3335 * until all asynchronous minor handling has completed.
3336 * Wait for the spa_zvol_taskq to drain then retry.
3338 error2 = dsl_destroy_head(fsname);
3339 while ((error2 == EBUSY) && (type == DMU_OST_ZVOL)) {
3340 error2 = spa_open(fsname, &spa, FTAG);
3342 taskq_wait(spa->spa_zvol_taskq);
3343 spa_close(spa, FTAG);
3345 error2 = dsl_destroy_head(fsname);
3354 * "origin" -> name of origin snapshot
3355 * (optional) "props" -> { prop -> value }
3356 * (optional) "hidden_args" -> { "wkeydata" -> value }
3357 * raw uint8_t array of encryption wrapping key data (32 bytes)
3361 * outnvl: propname -> error code (int32)
3363 static const zfs_ioc_key_t zfs_keys_clone[] = {
3364 {"origin", DATA_TYPE_STRING, 0},
3365 {"props", DATA_TYPE_NVLIST, ZK_OPTIONAL},
3366 {"hidden_args", DATA_TYPE_NVLIST, ZK_OPTIONAL},
3370 zfs_ioc_clone(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl)
3373 nvlist_t *nvprops = NULL;
3376 origin_name = fnvlist_lookup_string(innvl, "origin");
3377 (void) nvlist_lookup_nvlist(innvl, "props", &nvprops);
3379 if (strchr(fsname, '@') ||
3380 strchr(fsname, '%'))
3381 return (SET_ERROR(EINVAL));
3383 if (dataset_namecheck(origin_name, NULL, NULL) != 0)
3384 return (SET_ERROR(EINVAL));
3386 error = dmu_objset_clone(fsname, origin_name);
3389 * It would be nice to do this atomically.
3392 error = zfs_set_prop_nvlist(fsname, ZPROP_SRC_LOCAL,
3395 (void) dsl_destroy_head(fsname);
3400 static const zfs_ioc_key_t zfs_keys_remap[] = {
3406 zfs_ioc_remap(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl)
3408 if (strchr(fsname, '@') ||
3409 strchr(fsname, '%'))
3410 return (SET_ERROR(EINVAL));
3412 return (dmu_objset_remap_indirects(fsname));
3417 * "snaps" -> { snapshot1, snapshot2 }
3418 * (optional) "props" -> { prop -> value (string) }
3421 * outnvl: snapshot -> error code (int32)
3423 static const zfs_ioc_key_t zfs_keys_snapshot[] = {
3424 {"snaps", DATA_TYPE_NVLIST, 0},
3425 {"props", DATA_TYPE_NVLIST, ZK_OPTIONAL},
3429 zfs_ioc_snapshot(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl)
3432 nvlist_t *props = NULL;
3436 (void) nvlist_lookup_nvlist(innvl, "props", &props);
3437 if ((error = zfs_check_userprops(poolname, props)) != 0)
3440 if (!nvlist_empty(props) &&
3441 zfs_earlier_version(poolname, SPA_VERSION_SNAP_PROPS))
3442 return (SET_ERROR(ENOTSUP));
3444 snaps = fnvlist_lookup_nvlist(innvl, "snaps");
3445 poollen = strlen(poolname);
3446 for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL;
3447 pair = nvlist_next_nvpair(snaps, pair)) {
3448 const char *name = nvpair_name(pair);
3449 const char *cp = strchr(name, '@');
3452 * The snap name must contain an @, and the part after it must
3453 * contain only valid characters.
3456 zfs_component_namecheck(cp + 1, NULL, NULL) != 0)
3457 return (SET_ERROR(EINVAL));
3460 * The snap must be in the specified pool.
3462 if (strncmp(name, poolname, poollen) != 0 ||
3463 (name[poollen] != '/' && name[poollen] != '@'))
3464 return (SET_ERROR(EXDEV));
3466 /* This must be the only snap of this fs. */
3467 for (nvpair_t *pair2 = nvlist_next_nvpair(snaps, pair);
3468 pair2 != NULL; pair2 = nvlist_next_nvpair(snaps, pair2)) {
3469 if (strncmp(name, nvpair_name(pair2), cp - name + 1)
3471 return (SET_ERROR(EXDEV));
3476 error = dsl_dataset_snapshot(snaps, props, outnvl);
3482 * innvl: "message" -> string
3484 static const zfs_ioc_key_t zfs_keys_log_history[] = {
3485 {"message", DATA_TYPE_STRING, 0},
3490 zfs_ioc_log_history(const char *unused, nvlist_t *innvl, nvlist_t *outnvl)
3498 * The poolname in the ioctl is not set, we get it from the TSD,
3499 * which was set at the end of the last successful ioctl that allows
3500 * logging. The secpolicy func already checked that it is set.
3501 * Only one log ioctl is allowed after each successful ioctl, so
3502 * we clear the TSD here.
3504 poolname = tsd_get(zfs_allow_log_key);
3505 if (poolname == NULL)
3506 return (SET_ERROR(EINVAL));
3507 (void) tsd_set(zfs_allow_log_key, NULL);
3508 error = spa_open(poolname, &spa, FTAG);
3513 message = fnvlist_lookup_string(innvl, "message");
3515 if (spa_version(spa) < SPA_VERSION_ZPOOL_HISTORY) {
3516 spa_close(spa, FTAG);
3517 return (SET_ERROR(ENOTSUP));
3520 error = spa_history_log(spa, message);
3521 spa_close(spa, FTAG);
3526 * The dp_config_rwlock must not be held when calling this, because the
3527 * unmount may need to write out data.
3529 * This function is best-effort. Callers must deal gracefully if it
3530 * remains mounted (or is remounted after this call).
3532 * Returns 0 if the argument is not a snapshot, or it is not currently a
3533 * filesystem, or we were able to unmount it. Returns error code otherwise.
3536 zfs_unmount_snap(const char *snapname)
3538 if (strchr(snapname, '@') == NULL)
3541 (void) zfsctl_snapshot_unmount((char *)snapname, MNT_FORCE);
3546 zfs_unmount_snap_cb(const char *snapname, void *arg)
3548 zfs_unmount_snap(snapname);
3553 * When a clone is destroyed, its origin may also need to be destroyed,
3554 * in which case it must be unmounted. This routine will do that unmount
3558 zfs_destroy_unmount_origin(const char *fsname)
3564 error = dmu_objset_hold(fsname, FTAG, &os);
3567 ds = dmu_objset_ds(os);
3568 if (dsl_dir_is_clone(ds->ds_dir) && DS_IS_DEFER_DESTROY(ds->ds_prev)) {
3569 char originname[ZFS_MAX_DATASET_NAME_LEN];
3570 dsl_dataset_name(ds->ds_prev, originname);
3571 dmu_objset_rele(os, FTAG);
3572 zfs_unmount_snap(originname);
3574 dmu_objset_rele(os, FTAG);
3580 * "snaps" -> { snapshot1, snapshot2 }
3581 * (optional boolean) "defer"
3584 * outnvl: snapshot -> error code (int32)
3586 static const zfs_ioc_key_t zfs_keys_destroy_snaps[] = {
3587 {"snaps", DATA_TYPE_NVLIST, 0},
3588 {"defer", DATA_TYPE_BOOLEAN, ZK_OPTIONAL},
3593 zfs_ioc_destroy_snaps(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl)
3599 snaps = fnvlist_lookup_nvlist(innvl, "snaps");
3600 defer = nvlist_exists(innvl, "defer");
3602 for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL;
3603 pair = nvlist_next_nvpair(snaps, pair)) {
3604 zfs_unmount_snap(nvpair_name(pair));
3607 return (dsl_destroy_snapshots_nvl(snaps, defer, outnvl));
3611 * Create bookmarks. Bookmark names are of the form <fs>#<bmark>.
3612 * All bookmarks must be in the same pool.
3615 * bookmark1 -> snapshot1, bookmark2 -> snapshot2
3618 * outnvl: bookmark -> error code (int32)
3621 static const zfs_ioc_key_t zfs_keys_bookmark[] = {
3622 {"<bookmark>...", DATA_TYPE_STRING, ZK_WILDCARDLIST},
3627 zfs_ioc_bookmark(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl)
3629 for (nvpair_t *pair = nvlist_next_nvpair(innvl, NULL);
3630 pair != NULL; pair = nvlist_next_nvpair(innvl, pair)) {
3634 * Verify the snapshot argument.
3636 if (nvpair_value_string(pair, &snap_name) != 0)
3637 return (SET_ERROR(EINVAL));
3640 /* Verify that the keys (bookmarks) are unique */
3641 for (nvpair_t *pair2 = nvlist_next_nvpair(innvl, pair);
3642 pair2 != NULL; pair2 = nvlist_next_nvpair(innvl, pair2)) {
3643 if (strcmp(nvpair_name(pair), nvpair_name(pair2)) == 0)
3644 return (SET_ERROR(EINVAL));
3648 return (dsl_bookmark_create(innvl, outnvl));
3653 * property 1, property 2, ...
3657 * bookmark name 1 -> { property 1, property 2, ... },
3658 * bookmark name 2 -> { property 1, property 2, ... }
3662 static const zfs_ioc_key_t zfs_keys_get_bookmarks[] = {
3663 {"<property>...", DATA_TYPE_BOOLEAN, ZK_WILDCARDLIST | ZK_OPTIONAL},
3667 zfs_ioc_get_bookmarks(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl)
3669 return (dsl_get_bookmarks(fsname, innvl, outnvl));
3674 * bookmark name 1, bookmark name 2
3677 * outnvl: bookmark -> error code (int32)
3680 static const zfs_ioc_key_t zfs_keys_destroy_bookmarks[] = {
3681 {"<bookmark>...", DATA_TYPE_BOOLEAN, ZK_WILDCARDLIST},
3685 zfs_ioc_destroy_bookmarks(const char *poolname, nvlist_t *innvl,
3690 poollen = strlen(poolname);
3691 for (nvpair_t *pair = nvlist_next_nvpair(innvl, NULL);
3692 pair != NULL; pair = nvlist_next_nvpair(innvl, pair)) {
3693 const char *name = nvpair_name(pair);
3694 const char *cp = strchr(name, '#');
3697 * The bookmark name must contain an #, and the part after it
3698 * must contain only valid characters.
3701 zfs_component_namecheck(cp + 1, NULL, NULL) != 0)
3702 return (SET_ERROR(EINVAL));
3705 * The bookmark must be in the specified pool.
3707 if (strncmp(name, poolname, poollen) != 0 ||
3708 (name[poollen] != '/' && name[poollen] != '#'))
3709 return (SET_ERROR(EXDEV));
3712 error = dsl_bookmark_destroy(innvl, outnvl);
3716 static const zfs_ioc_key_t zfs_keys_channel_program[] = {
3717 {"program", DATA_TYPE_STRING, 0},
3718 {"arg", DATA_TYPE_ANY, 0},
3719 {"sync", DATA_TYPE_BOOLEAN_VALUE, ZK_OPTIONAL},
3720 {"instrlimit", DATA_TYPE_UINT64, ZK_OPTIONAL},
3721 {"memlimit", DATA_TYPE_UINT64, ZK_OPTIONAL},
3725 zfs_ioc_channel_program(const char *poolname, nvlist_t *innvl,
3729 uint64_t instrlimit, memlimit;
3730 boolean_t sync_flag;
3731 nvpair_t *nvarg = NULL;
3733 program = fnvlist_lookup_string(innvl, ZCP_ARG_PROGRAM);
3734 if (0 != nvlist_lookup_boolean_value(innvl, ZCP_ARG_SYNC, &sync_flag)) {
3737 if (0 != nvlist_lookup_uint64(innvl, ZCP_ARG_INSTRLIMIT, &instrlimit)) {
3738 instrlimit = ZCP_DEFAULT_INSTRLIMIT;
3740 if (0 != nvlist_lookup_uint64(innvl, ZCP_ARG_MEMLIMIT, &memlimit)) {
3741 memlimit = ZCP_DEFAULT_MEMLIMIT;
3743 nvarg = fnvlist_lookup_nvpair(innvl, ZCP_ARG_ARGLIST);
3745 if (instrlimit == 0 || instrlimit > zfs_lua_max_instrlimit)
3747 if (memlimit == 0 || memlimit > zfs_lua_max_memlimit)
3750 return (zcp_eval(poolname, program, sync_flag, instrlimit, memlimit,
3758 static const zfs_ioc_key_t zfs_keys_pool_checkpoint[] = {
3764 zfs_ioc_pool_checkpoint(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl)
3766 return (spa_checkpoint(poolname));
3773 static const zfs_ioc_key_t zfs_keys_pool_discard_checkpoint[] = {
3779 zfs_ioc_pool_discard_checkpoint(const char *poolname, nvlist_t *innvl,
3782 return (spa_checkpoint_discard(poolname));
3787 * zc_name name of dataset to destroy
3788 * zc_objset_type type of objset
3789 * zc_defer_destroy mark for deferred destroy
3794 zfs_ioc_destroy(zfs_cmd_t *zc)
3798 if (zc->zc_objset_type == DMU_OST_ZFS)
3799 zfs_unmount_snap(zc->zc_name);
3801 if (strchr(zc->zc_name, '@')) {
3802 err = dsl_destroy_snapshot(zc->zc_name, zc->zc_defer_destroy);
3804 err = dsl_destroy_head(zc->zc_name);
3805 if (err == EEXIST) {
3807 * It is possible that the given DS may have
3808 * hidden child (%recv) datasets - "leftovers"
3809 * resulting from the previously interrupted
3812 * 6 extra bytes for /%recv
3814 char namebuf[ZFS_MAX_DATASET_NAME_LEN + 6];
3816 if (snprintf(namebuf, sizeof (namebuf), "%s/%s",
3817 zc->zc_name, recv_clone_name) >=
3819 return (SET_ERROR(EINVAL));
3822 * Try to remove the hidden child (%recv) and after
3823 * that try to remove the target dataset.
3824 * If the hidden child (%recv) does not exist
3825 * the original error (EEXIST) will be returned
3827 err = dsl_destroy_head(namebuf);
3829 err = dsl_destroy_head(zc->zc_name);
3830 else if (err == ENOENT)
3831 err = SET_ERROR(EEXIST);
3839 * fsname is name of dataset to rollback (to most recent snapshot)
3841 * innvl may contain name of expected target snapshot
3843 * outnvl: "target" -> name of most recent snapshot
3846 static const zfs_ioc_key_t zfs_keys_rollback[] = {
3847 {"target", DATA_TYPE_STRING, ZK_OPTIONAL},
3852 zfs_ioc_rollback(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl)
3856 char *target = NULL;
3859 (void) nvlist_lookup_string(innvl, "target", &target);
3860 if (target != NULL) {
3861 const char *cp = strchr(target, '@');
3864 * The snap name must contain an @, and the part after it must
3865 * contain only valid characters.
3868 zfs_component_namecheck(cp + 1, NULL, NULL) != 0)
3869 return (SET_ERROR(EINVAL));
3872 if (getzfsvfs(fsname, &zfsvfs) == 0) {
3875 ds = dmu_objset_ds(zfsvfs->z_os);
3876 error = zfs_suspend_fs(zfsvfs);
3880 error = dsl_dataset_rollback(fsname, target, zfsvfs,
3882 resume_err = zfs_resume_fs(zfsvfs, ds);
3883 error = error ? error : resume_err;
3885 deactivate_super(zfsvfs->z_sb);
3886 } else if ((zv = zvol_suspend(fsname)) != NULL) {
3887 error = dsl_dataset_rollback(fsname, target, zvol_tag(zv),
3891 error = dsl_dataset_rollback(fsname, target, NULL, outnvl);
3897 recursive_unmount(const char *fsname, void *arg)
3899 const char *snapname = arg;
3902 fullname = kmem_asprintf("%s@%s", fsname, snapname);
3903 zfs_unmount_snap(fullname);
3911 * zc_name old name of dataset
3912 * zc_value new name of dataset
3913 * zc_cookie recursive flag (only valid for snapshots)
3918 zfs_ioc_rename(zfs_cmd_t *zc)
3920 boolean_t recursive = zc->zc_cookie & 1;
3923 /* "zfs rename" from and to ...%recv datasets should both fail */
3924 zc->zc_name[sizeof (zc->zc_name) - 1] = '\0';
3925 zc->zc_value[sizeof (zc->zc_value) - 1] = '\0';
3926 if (dataset_namecheck(zc->zc_name, NULL, NULL) != 0 ||
3927 dataset_namecheck(zc->zc_value, NULL, NULL) != 0 ||
3928 strchr(zc->zc_name, '%') || strchr(zc->zc_value, '%'))
3929 return (SET_ERROR(EINVAL));
3931 at = strchr(zc->zc_name, '@');
3933 /* snaps must be in same fs */
3936 if (strncmp(zc->zc_name, zc->zc_value, at - zc->zc_name + 1))
3937 return (SET_ERROR(EXDEV));
3939 if (zc->zc_objset_type == DMU_OST_ZFS) {
3940 error = dmu_objset_find(zc->zc_name,
3941 recursive_unmount, at + 1,
3942 recursive ? DS_FIND_CHILDREN : 0);
3948 error = dsl_dataset_rename_snapshot(zc->zc_name,
3949 at + 1, strchr(zc->zc_value, '@') + 1, recursive);
3954 return (dsl_dir_rename(zc->zc_name, zc->zc_value));
3959 zfs_check_settable(const char *dsname, nvpair_t *pair, cred_t *cr)
3961 const char *propname = nvpair_name(pair);
3962 boolean_t issnap = (strchr(dsname, '@') != NULL);
3963 zfs_prop_t prop = zfs_name_to_prop(propname);
3967 if (prop == ZPROP_INVAL) {
3968 if (zfs_prop_user(propname)) {
3969 if ((err = zfs_secpolicy_write_perms(dsname,
3970 ZFS_DELEG_PERM_USERPROP, cr)))
3975 if (!issnap && zfs_prop_userquota(propname)) {
3976 const char *perm = NULL;
3977 const char *uq_prefix =
3978 zfs_userquota_prop_prefixes[ZFS_PROP_USERQUOTA];
3979 const char *gq_prefix =
3980 zfs_userquota_prop_prefixes[ZFS_PROP_GROUPQUOTA];
3981 const char *uiq_prefix =
3982 zfs_userquota_prop_prefixes[ZFS_PROP_USEROBJQUOTA];
3983 const char *giq_prefix =
3984 zfs_userquota_prop_prefixes[ZFS_PROP_GROUPOBJQUOTA];
3985 const char *pq_prefix =
3986 zfs_userquota_prop_prefixes[ZFS_PROP_PROJECTQUOTA];
3987 const char *piq_prefix = zfs_userquota_prop_prefixes[\
3988 ZFS_PROP_PROJECTOBJQUOTA];
3990 if (strncmp(propname, uq_prefix,
3991 strlen(uq_prefix)) == 0) {
3992 perm = ZFS_DELEG_PERM_USERQUOTA;
3993 } else if (strncmp(propname, uiq_prefix,
3994 strlen(uiq_prefix)) == 0) {
3995 perm = ZFS_DELEG_PERM_USEROBJQUOTA;
3996 } else if (strncmp(propname, gq_prefix,
3997 strlen(gq_prefix)) == 0) {
3998 perm = ZFS_DELEG_PERM_GROUPQUOTA;
3999 } else if (strncmp(propname, giq_prefix,
4000 strlen(giq_prefix)) == 0) {
4001 perm = ZFS_DELEG_PERM_GROUPOBJQUOTA;
4002 } else if (strncmp(propname, pq_prefix,
4003 strlen(pq_prefix)) == 0) {
4004 perm = ZFS_DELEG_PERM_PROJECTQUOTA;
4005 } else if (strncmp(propname, piq_prefix,
4006 strlen(piq_prefix)) == 0) {
4007 perm = ZFS_DELEG_PERM_PROJECTOBJQUOTA;
4009 /* {USER|GROUP|PROJECT}USED are read-only */
4010 return (SET_ERROR(EINVAL));
4013 if ((err = zfs_secpolicy_write_perms(dsname, perm, cr)))
4018 return (SET_ERROR(EINVAL));
4022 return (SET_ERROR(EINVAL));
4024 if (nvpair_type(pair) == DATA_TYPE_NVLIST) {
4026 * dsl_prop_get_all_impl() returns properties in this
4030 VERIFY(nvpair_value_nvlist(pair, &attrs) == 0);
4031 VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE,
4036 * Check that this value is valid for this pool version
4039 case ZFS_PROP_COMPRESSION:
4041 * If the user specified gzip compression, make sure
4042 * the SPA supports it. We ignore any errors here since
4043 * we'll catch them later.
4045 if (nvpair_value_uint64(pair, &intval) == 0) {
4046 if (intval >= ZIO_COMPRESS_GZIP_1 &&
4047 intval <= ZIO_COMPRESS_GZIP_9 &&
4048 zfs_earlier_version(dsname,
4049 SPA_VERSION_GZIP_COMPRESSION)) {
4050 return (SET_ERROR(ENOTSUP));
4053 if (intval == ZIO_COMPRESS_ZLE &&
4054 zfs_earlier_version(dsname,
4055 SPA_VERSION_ZLE_COMPRESSION))
4056 return (SET_ERROR(ENOTSUP));
4058 if (intval == ZIO_COMPRESS_LZ4) {
4061 if ((err = spa_open(dsname, &spa, FTAG)) != 0)
4064 if (!spa_feature_is_enabled(spa,
4065 SPA_FEATURE_LZ4_COMPRESS)) {
4066 spa_close(spa, FTAG);
4067 return (SET_ERROR(ENOTSUP));
4069 spa_close(spa, FTAG);
4073 * If this is a bootable dataset then
4074 * verify that the compression algorithm
4075 * is supported for booting. We must return
4076 * something other than ENOTSUP since it
4077 * implies a downrev pool version.
4079 if (zfs_is_bootfs(dsname) &&
4080 !BOOTFS_COMPRESS_VALID(intval)) {
4081 return (SET_ERROR(ERANGE));
4086 case ZFS_PROP_COPIES:
4087 if (zfs_earlier_version(dsname, SPA_VERSION_DITTO_BLOCKS))
4088 return (SET_ERROR(ENOTSUP));
4091 case ZFS_PROP_VOLBLOCKSIZE:
4092 case ZFS_PROP_RECORDSIZE:
4093 /* Record sizes above 128k need the feature to be enabled */
4094 if (nvpair_value_uint64(pair, &intval) == 0 &&
4095 intval > SPA_OLD_MAXBLOCKSIZE) {
4099 * We don't allow setting the property above 1MB,
4100 * unless the tunable has been changed.
4102 if (intval > zfs_max_recordsize ||
4103 intval > SPA_MAXBLOCKSIZE)
4104 return (SET_ERROR(ERANGE));
4106 if ((err = spa_open(dsname, &spa, FTAG)) != 0)
4109 if (!spa_feature_is_enabled(spa,
4110 SPA_FEATURE_LARGE_BLOCKS)) {
4111 spa_close(spa, FTAG);
4112 return (SET_ERROR(ENOTSUP));
4114 spa_close(spa, FTAG);
4118 case ZFS_PROP_DNODESIZE:
4119 /* Dnode sizes above 512 need the feature to be enabled */
4120 if (nvpair_value_uint64(pair, &intval) == 0 &&
4121 intval != ZFS_DNSIZE_LEGACY) {
4125 * If this is a bootable dataset then
4126 * we don't allow large (>512B) dnodes,
4127 * because GRUB doesn't support them.
4129 if (zfs_is_bootfs(dsname) &&
4130 intval != ZFS_DNSIZE_LEGACY) {
4131 return (SET_ERROR(EDOM));
4134 if ((err = spa_open(dsname, &spa, FTAG)) != 0)
4137 if (!spa_feature_is_enabled(spa,
4138 SPA_FEATURE_LARGE_DNODE)) {
4139 spa_close(spa, FTAG);
4140 return (SET_ERROR(ENOTSUP));
4142 spa_close(spa, FTAG);
4146 case ZFS_PROP_SPECIAL_SMALL_BLOCKS:
4148 * This property could require the allocation classes
4149 * feature to be active for setting, however we allow
4150 * it so that tests of settable properties succeed.
4151 * The CLI will issue a warning in this case.
4155 case ZFS_PROP_SHARESMB:
4156 if (zpl_earlier_version(dsname, ZPL_VERSION_FUID))
4157 return (SET_ERROR(ENOTSUP));
4160 case ZFS_PROP_ACLINHERIT:
4161 if (nvpair_type(pair) == DATA_TYPE_UINT64 &&
4162 nvpair_value_uint64(pair, &intval) == 0) {
4163 if (intval == ZFS_ACL_PASSTHROUGH_X &&
4164 zfs_earlier_version(dsname,
4165 SPA_VERSION_PASSTHROUGH_X))
4166 return (SET_ERROR(ENOTSUP));
4169 case ZFS_PROP_CHECKSUM:
4170 case ZFS_PROP_DEDUP:
4172 spa_feature_t feature;
4176 /* dedup feature version checks */
4177 if (prop == ZFS_PROP_DEDUP &&
4178 zfs_earlier_version(dsname, SPA_VERSION_DEDUP))
4179 return (SET_ERROR(ENOTSUP));
4181 if (nvpair_type(pair) == DATA_TYPE_UINT64 &&
4182 nvpair_value_uint64(pair, &intval) == 0) {
4183 /* check prop value is enabled in features */
4184 feature = zio_checksum_to_feature(
4185 intval & ZIO_CHECKSUM_MASK);
4186 if (feature == SPA_FEATURE_NONE)
4189 if ((err = spa_open(dsname, &spa, FTAG)) != 0)
4192 if (!spa_feature_is_enabled(spa, feature)) {
4193 spa_close(spa, FTAG);
4194 return (SET_ERROR(ENOTSUP));
4196 spa_close(spa, FTAG);
4205 return (zfs_secpolicy_setprop(dsname, prop, pair, CRED()));
4209 * Removes properties from the given props list that fail permission checks
4210 * needed to clear them and to restore them in case of a receive error. For each
4211 * property, make sure we have both set and inherit permissions.
4213 * Returns the first error encountered if any permission checks fail. If the
4214 * caller provides a non-NULL errlist, it also gives the complete list of names
4215 * of all the properties that failed a permission check along with the
4216 * corresponding error numbers. The caller is responsible for freeing the
4219 * If every property checks out successfully, zero is returned and the list
4220 * pointed at by errlist is NULL.
4223 zfs_check_clearable(char *dataset, nvlist_t *props, nvlist_t **errlist)
4226 nvpair_t *pair, *next_pair;
4233 VERIFY(nvlist_alloc(&errors, NV_UNIQUE_NAME, KM_SLEEP) == 0);
4235 zc = kmem_alloc(sizeof (zfs_cmd_t), KM_SLEEP);
4236 (void) strlcpy(zc->zc_name, dataset, sizeof (zc->zc_name));
4237 pair = nvlist_next_nvpair(props, NULL);
4238 while (pair != NULL) {
4239 next_pair = nvlist_next_nvpair(props, pair);
4241 (void) strlcpy(zc->zc_value, nvpair_name(pair),
4242 sizeof (zc->zc_value));
4243 if ((err = zfs_check_settable(dataset, pair, CRED())) != 0 ||
4244 (err = zfs_secpolicy_inherit_prop(zc, NULL, CRED())) != 0) {
4245 VERIFY(nvlist_remove_nvpair(props, pair) == 0);
4246 VERIFY(nvlist_add_int32(errors,
4247 zc->zc_value, err) == 0);
4251 kmem_free(zc, sizeof (zfs_cmd_t));
4253 if ((pair = nvlist_next_nvpair(errors, NULL)) == NULL) {
4254 nvlist_free(errors);
4257 VERIFY(nvpair_value_int32(pair, &rv) == 0);
4260 if (errlist == NULL)
4261 nvlist_free(errors);
4269 propval_equals(nvpair_t *p1, nvpair_t *p2)
4271 if (nvpair_type(p1) == DATA_TYPE_NVLIST) {
4272 /* dsl_prop_get_all_impl() format */
4274 VERIFY(nvpair_value_nvlist(p1, &attrs) == 0);
4275 VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE,
4279 if (nvpair_type(p2) == DATA_TYPE_NVLIST) {
4281 VERIFY(nvpair_value_nvlist(p2, &attrs) == 0);
4282 VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE,
4286 if (nvpair_type(p1) != nvpair_type(p2))
4289 if (nvpair_type(p1) == DATA_TYPE_STRING) {
4290 char *valstr1, *valstr2;
4292 VERIFY(nvpair_value_string(p1, (char **)&valstr1) == 0);
4293 VERIFY(nvpair_value_string(p2, (char **)&valstr2) == 0);
4294 return (strcmp(valstr1, valstr2) == 0);
4296 uint64_t intval1, intval2;
4298 VERIFY(nvpair_value_uint64(p1, &intval1) == 0);
4299 VERIFY(nvpair_value_uint64(p2, &intval2) == 0);
4300 return (intval1 == intval2);
4305 * Remove properties from props if they are not going to change (as determined
4306 * by comparison with origprops). Remove them from origprops as well, since we
4307 * do not need to clear or restore properties that won't change.
4310 props_reduce(nvlist_t *props, nvlist_t *origprops)
4312 nvpair_t *pair, *next_pair;
4314 if (origprops == NULL)
4315 return; /* all props need to be received */
4317 pair = nvlist_next_nvpair(props, NULL);
4318 while (pair != NULL) {
4319 const char *propname = nvpair_name(pair);
4322 next_pair = nvlist_next_nvpair(props, pair);
4324 if ((nvlist_lookup_nvpair(origprops, propname,
4325 &match) != 0) || !propval_equals(pair, match))
4326 goto next; /* need to set received value */
4328 /* don't clear the existing received value */
4329 (void) nvlist_remove_nvpair(origprops, match);
4330 /* don't bother receiving the property */
4331 (void) nvlist_remove_nvpair(props, pair);
4338 * Extract properties that cannot be set PRIOR to the receipt of a dataset.
4339 * For example, refquota cannot be set until after the receipt of a dataset,
4340 * because in replication streams, an older/earlier snapshot may exceed the
4341 * refquota. We want to receive the older/earlier snapshot, but setting
4342 * refquota pre-receipt will set the dsl's ACTUAL quota, which will prevent
4343 * the older/earlier snapshot from being received (with EDQUOT).
4345 * The ZFS test "zfs_receive_011_pos" demonstrates such a scenario.
4347 * libzfs will need to be judicious handling errors encountered by props
4348 * extracted by this function.
4351 extract_delay_props(nvlist_t *props)
4353 nvlist_t *delayprops;
4354 nvpair_t *nvp, *tmp;
4355 static const zfs_prop_t delayable[] = {
4357 ZFS_PROP_KEYLOCATION,
4362 VERIFY(nvlist_alloc(&delayprops, NV_UNIQUE_NAME, KM_SLEEP) == 0);
4364 for (nvp = nvlist_next_nvpair(props, NULL); nvp != NULL;
4365 nvp = nvlist_next_nvpair(props, nvp)) {
4367 * strcmp() is safe because zfs_prop_to_name() always returns
4370 for (i = 0; delayable[i] != 0; i++) {
4371 if (strcmp(zfs_prop_to_name(delayable[i]),
4372 nvpair_name(nvp)) == 0) {
4376 if (delayable[i] != 0) {
4377 tmp = nvlist_prev_nvpair(props, nvp);
4378 VERIFY(nvlist_add_nvpair(delayprops, nvp) == 0);
4379 VERIFY(nvlist_remove_nvpair(props, nvp) == 0);
4384 if (nvlist_empty(delayprops)) {
4385 nvlist_free(delayprops);
4388 return (delayprops);
4392 static boolean_t zfs_ioc_recv_inject_err;
4396 * nvlist 'errors' is always allocated. It will contain descriptions of
4397 * encountered errors, if any. It's the callers responsibility to free.
4400 zfs_ioc_recv_impl(char *tofs, char *tosnap, char *origin, nvlist_t *recvprops,
4401 nvlist_t *localprops, nvlist_t *hidden_args, boolean_t force,
4402 boolean_t resumable, int input_fd, dmu_replay_record_t *begin_record,
4403 int cleanup_fd, uint64_t *read_bytes, uint64_t *errflags,
4404 uint64_t *action_handle, nvlist_t **errors)
4406 dmu_recv_cookie_t drc;
4408 int props_error = 0;
4410 nvlist_t *local_delayprops = NULL;
4411 nvlist_t *recv_delayprops = NULL;
4412 nvlist_t *origprops = NULL; /* existing properties */
4413 nvlist_t *origrecvd = NULL; /* existing received properties */
4414 boolean_t first_recvd_props = B_FALSE;
4419 *errors = fnvlist_alloc();
4421 input_fp = getf(input_fd);
4422 if (input_fp == NULL)
4423 return (SET_ERROR(EBADF));
4425 error = dmu_recv_begin(tofs, tosnap, begin_record, force,
4426 resumable, localprops, hidden_args, origin, &drc);
4431 * Set properties before we receive the stream so that they are applied
4432 * to the new data. Note that we must call dmu_recv_stream() if
4433 * dmu_recv_begin() succeeds.
4435 if (recvprops != NULL && !drc.drc_newfs) {
4436 if (spa_version(dsl_dataset_get_spa(drc.drc_ds)) >=
4437 SPA_VERSION_RECVD_PROPS &&
4438 !dsl_prop_get_hasrecvd(tofs))
4439 first_recvd_props = B_TRUE;
4442 * If new received properties are supplied, they are to
4443 * completely replace the existing received properties,
4444 * so stash away the existing ones.
4446 if (dsl_prop_get_received(tofs, &origrecvd) == 0) {
4447 nvlist_t *errlist = NULL;
4449 * Don't bother writing a property if its value won't
4450 * change (and avoid the unnecessary security checks).
4452 * The first receive after SPA_VERSION_RECVD_PROPS is a
4453 * special case where we blow away all local properties
4456 if (!first_recvd_props)
4457 props_reduce(recvprops, origrecvd);
4458 if (zfs_check_clearable(tofs, origrecvd, &errlist) != 0)
4459 (void) nvlist_merge(*errors, errlist, 0);
4460 nvlist_free(errlist);
4462 if (clear_received_props(tofs, origrecvd,
4463 first_recvd_props ? NULL : recvprops) != 0)
4464 *errflags |= ZPROP_ERR_NOCLEAR;
4466 *errflags |= ZPROP_ERR_NOCLEAR;
4471 * Stash away existing properties so we can restore them on error unless
4472 * we're doing the first receive after SPA_VERSION_RECVD_PROPS, in which
4473 * case "origrecvd" will take care of that.
4475 if (localprops != NULL && !drc.drc_newfs && !first_recvd_props) {
4477 if (dmu_objset_hold(tofs, FTAG, &os) == 0) {
4478 if (dsl_prop_get_all(os, &origprops) != 0) {
4479 *errflags |= ZPROP_ERR_NOCLEAR;
4481 dmu_objset_rele(os, FTAG);
4483 *errflags |= ZPROP_ERR_NOCLEAR;
4487 if (recvprops != NULL) {
4488 props_error = dsl_prop_set_hasrecvd(tofs);
4490 if (props_error == 0) {
4491 recv_delayprops = extract_delay_props(recvprops);
4492 (void) zfs_set_prop_nvlist(tofs, ZPROP_SRC_RECEIVED,
4493 recvprops, *errors);
4497 if (localprops != NULL) {
4498 nvlist_t *oprops = fnvlist_alloc();
4499 nvlist_t *xprops = fnvlist_alloc();
4500 nvpair_t *nvp = NULL;
4502 while ((nvp = nvlist_next_nvpair(localprops, nvp)) != NULL) {
4503 if (nvpair_type(nvp) == DATA_TYPE_BOOLEAN) {
4505 const char *name = nvpair_name(nvp);
4506 zfs_prop_t prop = zfs_name_to_prop(name);
4507 if (prop != ZPROP_INVAL) {
4508 if (!zfs_prop_inheritable(prop))
4510 } else if (!zfs_prop_user(name))
4512 fnvlist_add_boolean(xprops, name);
4514 /* -o property=value */
4515 fnvlist_add_nvpair(oprops, nvp);
4519 local_delayprops = extract_delay_props(oprops);
4520 (void) zfs_set_prop_nvlist(tofs, ZPROP_SRC_LOCAL,
4522 (void) zfs_set_prop_nvlist(tofs, ZPROP_SRC_INHERITED,
4525 nvlist_free(oprops);
4526 nvlist_free(xprops);
4529 off = input_fp->f_offset;
4530 error = dmu_recv_stream(&drc, input_fp->f_vnode, &off, cleanup_fd,
4534 zfsvfs_t *zfsvfs = NULL;
4535 zvol_state_t *zv = NULL;
4537 if (getzfsvfs(tofs, &zfsvfs) == 0) {
4542 ds = dmu_objset_ds(zfsvfs->z_os);
4543 error = zfs_suspend_fs(zfsvfs);
4545 * If the suspend fails, then the recv_end will
4546 * likely also fail, and clean up after itself.
4548 end_err = dmu_recv_end(&drc, zfsvfs);
4550 error = zfs_resume_fs(zfsvfs, ds);
4551 error = error ? error : end_err;
4552 deactivate_super(zfsvfs->z_sb);
4553 } else if ((zv = zvol_suspend(tofs)) != NULL) {
4554 error = dmu_recv_end(&drc, zvol_tag(zv));
4557 error = dmu_recv_end(&drc, NULL);
4560 /* Set delayed properties now, after we're done receiving. */
4561 if (recv_delayprops != NULL && error == 0) {
4562 (void) zfs_set_prop_nvlist(tofs, ZPROP_SRC_RECEIVED,
4563 recv_delayprops, *errors);
4565 if (local_delayprops != NULL && error == 0) {
4566 (void) zfs_set_prop_nvlist(tofs, ZPROP_SRC_LOCAL,
4567 local_delayprops, *errors);
4572 * Merge delayed props back in with initial props, in case
4573 * we're DEBUG and zfs_ioc_recv_inject_err is set (which means
4574 * we have to make sure clear_received_props() includes
4575 * the delayed properties).
4577 * Since zfs_ioc_recv_inject_err is only in DEBUG kernels,
4578 * using ASSERT() will be just like a VERIFY.
4580 if (recv_delayprops != NULL) {
4581 ASSERT(nvlist_merge(recvprops, recv_delayprops, 0) == 0);
4582 nvlist_free(recv_delayprops);
4584 if (local_delayprops != NULL) {
4585 ASSERT(nvlist_merge(localprops, local_delayprops, 0) == 0);
4586 nvlist_free(local_delayprops);
4589 *read_bytes = off - input_fp->f_offset;
4590 if (VOP_SEEK(input_fp->f_vnode, input_fp->f_offset, &off, NULL) == 0)
4591 input_fp->f_offset = off;
4594 if (zfs_ioc_recv_inject_err) {
4595 zfs_ioc_recv_inject_err = B_FALSE;
4601 * On error, restore the original props.
4603 if (error != 0 && recvprops != NULL && !drc.drc_newfs) {
4604 if (clear_received_props(tofs, recvprops, NULL) != 0) {
4606 * We failed to clear the received properties.
4607 * Since we may have left a $recvd value on the
4608 * system, we can't clear the $hasrecvd flag.
4610 *errflags |= ZPROP_ERR_NORESTORE;
4611 } else if (first_recvd_props) {
4612 dsl_prop_unset_hasrecvd(tofs);
4615 if (origrecvd == NULL && !drc.drc_newfs) {
4616 /* We failed to stash the original properties. */
4617 *errflags |= ZPROP_ERR_NORESTORE;
4621 * dsl_props_set() will not convert RECEIVED to LOCAL on or
4622 * after SPA_VERSION_RECVD_PROPS, so we need to specify LOCAL
4623 * explicitly if we're restoring local properties cleared in the
4624 * first new-style receive.
4626 if (origrecvd != NULL &&
4627 zfs_set_prop_nvlist(tofs, (first_recvd_props ?
4628 ZPROP_SRC_LOCAL : ZPROP_SRC_RECEIVED),
4629 origrecvd, NULL) != 0) {
4631 * We stashed the original properties but failed to
4634 *errflags |= ZPROP_ERR_NORESTORE;
4637 if (error != 0 && localprops != NULL && !drc.drc_newfs &&
4638 !first_recvd_props) {
4640 nvlist_t *inheritprops;
4643 if (origprops == NULL) {
4644 /* We failed to stash the original properties. */
4645 *errflags |= ZPROP_ERR_NORESTORE;
4649 /* Restore original props */
4650 setprops = fnvlist_alloc();
4651 inheritprops = fnvlist_alloc();
4653 while ((nvp = nvlist_next_nvpair(localprops, nvp)) != NULL) {
4654 const char *name = nvpair_name(nvp);
4658 if (!nvlist_exists(origprops, name)) {
4660 * Property was not present or was explicitly
4661 * inherited before the receive, restore this.
4663 fnvlist_add_boolean(inheritprops, name);
4666 attrs = fnvlist_lookup_nvlist(origprops, name);
4667 source = fnvlist_lookup_string(attrs, ZPROP_SOURCE);
4669 /* Skip received properties */
4670 if (strcmp(source, ZPROP_SOURCE_VAL_RECVD) == 0)
4673 if (strcmp(source, tofs) == 0) {
4674 /* Property was locally set */
4675 fnvlist_add_nvlist(setprops, name, attrs);
4677 /* Property was implicitly inherited */
4678 fnvlist_add_boolean(inheritprops, name);
4682 if (zfs_set_prop_nvlist(tofs, ZPROP_SRC_LOCAL, setprops,
4684 *errflags |= ZPROP_ERR_NORESTORE;
4685 if (zfs_set_prop_nvlist(tofs, ZPROP_SRC_INHERITED, inheritprops,
4687 *errflags |= ZPROP_ERR_NORESTORE;
4689 nvlist_free(setprops);
4690 nvlist_free(inheritprops);
4694 nvlist_free(origrecvd);
4695 nvlist_free(origprops);
4698 error = props_error;
4705 * zc_name name of containing filesystem (unused)
4706 * zc_nvlist_src{_size} nvlist of properties to apply
4707 * zc_nvlist_conf{_size} nvlist of properties to exclude
4708 * (DATA_TYPE_BOOLEAN) and override (everything else)
4709 * zc_value name of snapshot to create
4710 * zc_string name of clone origin (if DRR_FLAG_CLONE)
4711 * zc_cookie file descriptor to recv from
4712 * zc_begin_record the BEGIN record of the stream (not byteswapped)
4713 * zc_guid force flag
4714 * zc_cleanup_fd cleanup-on-exit file descriptor
4715 * zc_action_handle handle for this guid/ds mapping (or zero on first call)
4718 * zc_cookie number of bytes read
4719 * zc_obj zprop_errflags_t
4720 * zc_action_handle handle for this guid/ds mapping
4721 * zc_nvlist_dst{_size} error for each unapplied received property
4724 zfs_ioc_recv(zfs_cmd_t *zc)
4726 dmu_replay_record_t begin_record;
4727 nvlist_t *errors = NULL;
4728 nvlist_t *recvdprops = NULL;
4729 nvlist_t *localprops = NULL;
4730 char *origin = NULL;
4732 char tofs[ZFS_MAX_DATASET_NAME_LEN];
4735 if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 ||
4736 strchr(zc->zc_value, '@') == NULL ||
4737 strchr(zc->zc_value, '%'))
4738 return (SET_ERROR(EINVAL));
4740 (void) strlcpy(tofs, zc->zc_value, sizeof (tofs));
4741 tosnap = strchr(tofs, '@');
4744 if (zc->zc_nvlist_src != 0 &&
4745 (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
4746 zc->zc_iflags, &recvdprops)) != 0)
4749 if (zc->zc_nvlist_conf != 0 &&
4750 (error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
4751 zc->zc_iflags, &localprops)) != 0)
4754 if (zc->zc_string[0])
4755 origin = zc->zc_string;
4757 begin_record.drr_type = DRR_BEGIN;
4758 begin_record.drr_payloadlen = 0;
4759 begin_record.drr_u.drr_begin = zc->zc_begin_record;
4761 error = zfs_ioc_recv_impl(tofs, tosnap, origin, recvdprops, localprops,
4762 NULL, zc->zc_guid, B_FALSE, zc->zc_cookie, &begin_record,
4763 zc->zc_cleanup_fd, &zc->zc_cookie, &zc->zc_obj,
4764 &zc->zc_action_handle, &errors);
4765 nvlist_free(recvdprops);
4766 nvlist_free(localprops);
4769 * Now that all props, initial and delayed, are set, report the prop
4770 * errors to the caller.
4772 if (zc->zc_nvlist_dst_size != 0 && errors != NULL &&
4773 (nvlist_smush(errors, zc->zc_nvlist_dst_size) != 0 ||
4774 put_nvlist(zc, errors) != 0)) {
4776 * Caller made zc->zc_nvlist_dst less than the minimum expected
4777 * size or supplied an invalid address.
4779 error = SET_ERROR(EINVAL);
4782 nvlist_free(errors);
4789 * "snapname" -> full name of the snapshot to create
4790 * (optional) "props" -> received properties to set (nvlist)
4791 * (optional) "localprops" -> override and exclude properties (nvlist)
4792 * (optional) "origin" -> name of clone origin (DRR_FLAG_CLONE)
4793 * "begin_record" -> non-byteswapped dmu_replay_record_t
4794 * "input_fd" -> file descriptor to read stream from (int32)
4795 * (optional) "force" -> force flag (value ignored)
4796 * (optional) "resumable" -> resumable flag (value ignored)
4797 * (optional) "cleanup_fd" -> cleanup-on-exit file descriptor
4798 * (optional) "action_handle" -> handle for this guid/ds mapping
4799 * (optional) "hidden_args" -> { "wkeydata" -> value }
4803 * "read_bytes" -> number of bytes read
4804 * "error_flags" -> zprop_errflags_t
4805 * "action_handle" -> handle for this guid/ds mapping
4806 * "errors" -> error for each unapplied received property (nvlist)
4809 static const zfs_ioc_key_t zfs_keys_recv_new[] = {
4810 {"snapname", DATA_TYPE_STRING, 0},
4811 {"props", DATA_TYPE_NVLIST, ZK_OPTIONAL},
4812 {"localprops", DATA_TYPE_NVLIST, ZK_OPTIONAL},
4813 {"origin", DATA_TYPE_STRING, ZK_OPTIONAL},
4814 {"begin_record", DATA_TYPE_BYTE_ARRAY, 0},
4815 {"input_fd", DATA_TYPE_INT32, 0},
4816 {"force", DATA_TYPE_BOOLEAN, ZK_OPTIONAL},
4817 {"resumable", DATA_TYPE_BOOLEAN, ZK_OPTIONAL},
4818 {"cleanup_fd", DATA_TYPE_INT32, ZK_OPTIONAL},
4819 {"action_handle", DATA_TYPE_UINT64, ZK_OPTIONAL},
4820 {"hidden_args", DATA_TYPE_NVLIST, ZK_OPTIONAL},
4824 zfs_ioc_recv_new(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl)
4826 dmu_replay_record_t *begin_record;
4827 uint_t begin_record_size;
4828 nvlist_t *errors = NULL;
4829 nvlist_t *recvprops = NULL;
4830 nvlist_t *localprops = NULL;
4831 nvlist_t *hidden_args = NULL;
4833 char *origin = NULL;
4835 char tofs[ZFS_MAX_DATASET_NAME_LEN];
4837 boolean_t resumable;
4838 uint64_t action_handle = 0;
4839 uint64_t read_bytes = 0;
4840 uint64_t errflags = 0;
4842 int cleanup_fd = -1;
4845 snapname = fnvlist_lookup_string(innvl, "snapname");
4847 if (dataset_namecheck(snapname, NULL, NULL) != 0 ||
4848 strchr(snapname, '@') == NULL ||
4849 strchr(snapname, '%'))
4850 return (SET_ERROR(EINVAL));
4852 (void) strcpy(tofs, snapname);
4853 tosnap = strchr(tofs, '@');
4856 error = nvlist_lookup_string(innvl, "origin", &origin);
4857 if (error && error != ENOENT)
4860 error = nvlist_lookup_byte_array(innvl, "begin_record",
4861 (uchar_t **)&begin_record, &begin_record_size);
4862 if (error != 0 || begin_record_size != sizeof (*begin_record))
4863 return (SET_ERROR(EINVAL));
4865 input_fd = fnvlist_lookup_int32(innvl, "input_fd");
4867 force = nvlist_exists(innvl, "force");
4868 resumable = nvlist_exists(innvl, "resumable");
4870 error = nvlist_lookup_int32(innvl, "cleanup_fd", &cleanup_fd);
4871 if (error && error != ENOENT)
4874 error = nvlist_lookup_uint64(innvl, "action_handle", &action_handle);
4875 if (error && error != ENOENT)
4878 /* we still use "props" here for backwards compatibility */
4879 error = nvlist_lookup_nvlist(innvl, "props", &recvprops);
4880 if (error && error != ENOENT)
4883 error = nvlist_lookup_nvlist(innvl, "localprops", &localprops);
4884 if (error && error != ENOENT)
4887 error = nvlist_lookup_nvlist(innvl, ZPOOL_HIDDEN_ARGS, &hidden_args);
4888 if (error && error != ENOENT)
4891 error = zfs_ioc_recv_impl(tofs, tosnap, origin, recvprops, localprops,
4892 hidden_args, force, resumable, input_fd, begin_record, cleanup_fd,
4893 &read_bytes, &errflags, &action_handle, &errors);
4895 fnvlist_add_uint64(outnvl, "read_bytes", read_bytes);
4896 fnvlist_add_uint64(outnvl, "error_flags", errflags);
4897 fnvlist_add_uint64(outnvl, "action_handle", action_handle);
4898 fnvlist_add_nvlist(outnvl, "errors", errors);
4900 nvlist_free(errors);
4901 nvlist_free(recvprops);
4902 nvlist_free(localprops);
4909 * zc_name name of snapshot to send
4910 * zc_cookie file descriptor to send stream to
4911 * zc_obj fromorigin flag (mutually exclusive with zc_fromobj)
4912 * zc_sendobj objsetid of snapshot to send
4913 * zc_fromobj objsetid of incremental fromsnap (may be zero)
4914 * zc_guid if set, estimate size of stream only. zc_cookie is ignored.
4915 * output size in zc_objset_type.
4916 * zc_flags lzc_send_flags
4919 * zc_objset_type estimated size, if zc_guid is set
4921 * NOTE: This is no longer the preferred interface, any new functionality
4922 * should be added to zfs_ioc_send_new() instead.
4925 zfs_ioc_send(zfs_cmd_t *zc)
4929 boolean_t estimate = (zc->zc_guid != 0);
4930 boolean_t embedok = (zc->zc_flags & 0x1);
4931 boolean_t large_block_ok = (zc->zc_flags & 0x2);
4932 boolean_t compressok = (zc->zc_flags & 0x4);
4933 boolean_t rawok = (zc->zc_flags & 0x8);
4935 if (zc->zc_obj != 0) {
4937 dsl_dataset_t *tosnap;
4939 error = dsl_pool_hold(zc->zc_name, FTAG, &dp);
4943 error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &tosnap);
4945 dsl_pool_rele(dp, FTAG);
4949 if (dsl_dir_is_clone(tosnap->ds_dir))
4951 dsl_dir_phys(tosnap->ds_dir)->dd_origin_obj;
4952 dsl_dataset_rele(tosnap, FTAG);
4953 dsl_pool_rele(dp, FTAG);
4958 dsl_dataset_t *tosnap;
4959 dsl_dataset_t *fromsnap = NULL;
4961 error = dsl_pool_hold(zc->zc_name, FTAG, &dp);
4965 error = dsl_dataset_hold_obj(dp, zc->zc_sendobj,
4968 dsl_pool_rele(dp, FTAG);
4972 if (zc->zc_fromobj != 0) {
4973 error = dsl_dataset_hold_obj(dp, zc->zc_fromobj,
4976 dsl_dataset_rele(tosnap, FTAG);
4977 dsl_pool_rele(dp, FTAG);
4982 error = dmu_send_estimate(tosnap, fromsnap, compressok || rawok,
4983 &zc->zc_objset_type);
4985 if (fromsnap != NULL)
4986 dsl_dataset_rele(fromsnap, FTAG);
4987 dsl_dataset_rele(tosnap, FTAG);
4988 dsl_pool_rele(dp, FTAG);
4990 file_t *fp = getf(zc->zc_cookie);
4992 return (SET_ERROR(EBADF));
4995 error = dmu_send_obj(zc->zc_name, zc->zc_sendobj,
4996 zc->zc_fromobj, embedok, large_block_ok, compressok, rawok,
4997 zc->zc_cookie, fp->f_vnode, &off);
4999 if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0)
5001 releasef(zc->zc_cookie);
5008 * zc_name name of snapshot on which to report progress
5009 * zc_cookie file descriptor of send stream
5012 * zc_cookie number of bytes written in send stream thus far
5015 zfs_ioc_send_progress(zfs_cmd_t *zc)
5019 dmu_sendarg_t *dsp = NULL;
5022 error = dsl_pool_hold(zc->zc_name, FTAG, &dp);
5026 error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &ds);
5028 dsl_pool_rele(dp, FTAG);
5032 mutex_enter(&ds->ds_sendstream_lock);
5035 * Iterate over all the send streams currently active on this dataset.
5036 * If there's one which matches the specified file descriptor _and_ the
5037 * stream was started by the current process, return the progress of
5041 for (dsp = list_head(&ds->ds_sendstreams); dsp != NULL;
5042 dsp = list_next(&ds->ds_sendstreams, dsp)) {
5043 if (dsp->dsa_outfd == zc->zc_cookie &&
5044 dsp->dsa_proc->group_leader == curproc->group_leader)
5049 zc->zc_cookie = *(dsp->dsa_off);
5051 error = SET_ERROR(ENOENT);
5053 mutex_exit(&ds->ds_sendstream_lock);
5054 dsl_dataset_rele(ds, FTAG);
5055 dsl_pool_rele(dp, FTAG);
5060 zfs_ioc_inject_fault(zfs_cmd_t *zc)
5064 error = zio_inject_fault(zc->zc_name, (int)zc->zc_guid, &id,
5065 &zc->zc_inject_record);
5068 zc->zc_guid = (uint64_t)id;
5074 zfs_ioc_clear_fault(zfs_cmd_t *zc)
5076 return (zio_clear_fault((int)zc->zc_guid));
5080 zfs_ioc_inject_list_next(zfs_cmd_t *zc)
5082 int id = (int)zc->zc_guid;
5085 error = zio_inject_list_next(&id, zc->zc_name, sizeof (zc->zc_name),
5086 &zc->zc_inject_record);
5094 zfs_ioc_error_log(zfs_cmd_t *zc)
5098 size_t count = (size_t)zc->zc_nvlist_dst_size;
5100 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
5103 error = spa_get_errlog(spa, (void *)(uintptr_t)zc->zc_nvlist_dst,
5106 zc->zc_nvlist_dst_size = count;
5108 zc->zc_nvlist_dst_size = spa_get_errlog_size(spa);
5110 spa_close(spa, FTAG);
5116 zfs_ioc_clear(zfs_cmd_t *zc)
5123 * On zpool clear we also fix up missing slogs
5125 mutex_enter(&spa_namespace_lock);
5126 spa = spa_lookup(zc->zc_name);
5128 mutex_exit(&spa_namespace_lock);
5129 return (SET_ERROR(EIO));
5131 if (spa_get_log_state(spa) == SPA_LOG_MISSING) {
5132 /* we need to let spa_open/spa_load clear the chains */
5133 spa_set_log_state(spa, SPA_LOG_CLEAR);
5135 spa->spa_last_open_failed = 0;
5136 mutex_exit(&spa_namespace_lock);
5138 if (zc->zc_cookie & ZPOOL_NO_REWIND) {
5139 error = spa_open(zc->zc_name, &spa, FTAG);
5142 nvlist_t *config = NULL;
5144 if (zc->zc_nvlist_src == 0)
5145 return (SET_ERROR(EINVAL));
5147 if ((error = get_nvlist(zc->zc_nvlist_src,
5148 zc->zc_nvlist_src_size, zc->zc_iflags, &policy)) == 0) {
5149 error = spa_open_rewind(zc->zc_name, &spa, FTAG,
5151 if (config != NULL) {
5154 if ((err = put_nvlist(zc, config)) != 0)
5156 nvlist_free(config);
5158 nvlist_free(policy);
5165 spa_vdev_state_enter(spa, SCL_NONE);
5167 if (zc->zc_guid == 0) {
5170 vd = spa_lookup_by_guid(spa, zc->zc_guid, B_TRUE);
5172 (void) spa_vdev_state_exit(spa, NULL, ENODEV);
5173 spa_close(spa, FTAG);
5174 return (SET_ERROR(ENODEV));
5178 vdev_clear(spa, vd);
5180 (void) spa_vdev_state_exit(spa, spa_suspended(spa) ?
5181 NULL : spa->spa_root_vdev, 0);
5184 * Resume any suspended I/Os.
5186 if (zio_resume(spa) != 0)
5187 error = SET_ERROR(EIO);
5189 spa_close(spa, FTAG);
5195 * Reopen all the vdevs associated with the pool.
5198 * "scrub_restart" -> when true and scrub is running, allow to restart
5199 * scrub as the side effect of the reopen (boolean).
5204 static const zfs_ioc_key_t zfs_keys_pool_reopen[] = {
5205 {"scrub_restart", DATA_TYPE_BOOLEAN_VALUE, 0},
5210 zfs_ioc_pool_reopen(const char *pool, nvlist_t *innvl, nvlist_t *outnvl)
5214 boolean_t scrub_restart = B_TRUE;
5217 scrub_restart = fnvlist_lookup_boolean_value(innvl,
5221 error = spa_open(pool, &spa, FTAG);
5225 spa_vdev_state_enter(spa, SCL_NONE);
5228 * If the scrub_restart flag is B_FALSE and a scrub is already
5229 * in progress then set spa_scrub_reopen flag to B_TRUE so that
5230 * we don't restart the scrub as a side effect of the reopen.
5231 * Otherwise, let vdev_open() decided if a resilver is required.
5234 spa->spa_scrub_reopen = (!scrub_restart &&
5235 dsl_scan_scrubbing(spa->spa_dsl_pool));
5236 vdev_reopen(spa->spa_root_vdev);
5237 spa->spa_scrub_reopen = B_FALSE;
5239 (void) spa_vdev_state_exit(spa, NULL, 0);
5240 spa_close(spa, FTAG);
5246 * zc_name name of filesystem
5249 * zc_string name of conflicting snapshot, if there is one
5252 zfs_ioc_promote(zfs_cmd_t *zc)
5255 dsl_dataset_t *ds, *ods;
5256 char origin[ZFS_MAX_DATASET_NAME_LEN];
5260 zc->zc_name[sizeof (zc->zc_name) - 1] = '\0';
5261 if (dataset_namecheck(zc->zc_name, NULL, NULL) != 0 ||
5262 strchr(zc->zc_name, '%'))
5263 return (SET_ERROR(EINVAL));
5265 error = dsl_pool_hold(zc->zc_name, FTAG, &dp);
5269 error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &ds);
5271 dsl_pool_rele(dp, FTAG);
5275 if (!dsl_dir_is_clone(ds->ds_dir)) {
5276 dsl_dataset_rele(ds, FTAG);
5277 dsl_pool_rele(dp, FTAG);
5278 return (SET_ERROR(EINVAL));
5281 error = dsl_dataset_hold_obj(dp,
5282 dsl_dir_phys(ds->ds_dir)->dd_origin_obj, FTAG, &ods);
5284 dsl_dataset_rele(ds, FTAG);
5285 dsl_pool_rele(dp, FTAG);
5289 dsl_dataset_name(ods, origin);
5290 dsl_dataset_rele(ods, FTAG);
5291 dsl_dataset_rele(ds, FTAG);
5292 dsl_pool_rele(dp, FTAG);
5295 * We don't need to unmount *all* the origin fs's snapshots, but
5298 cp = strchr(origin, '@');
5301 (void) dmu_objset_find(origin,
5302 zfs_unmount_snap_cb, NULL, DS_FIND_SNAPSHOTS);
5303 return (dsl_dataset_promote(zc->zc_name, zc->zc_string));
5307 * Retrieve a single {user|group|project}{used|quota}@... property.
5310 * zc_name name of filesystem
5311 * zc_objset_type zfs_userquota_prop_t
5312 * zc_value domain name (eg. "S-1-234-567-89")
5313 * zc_guid RID/UID/GID
5316 * zc_cookie property value
5319 zfs_ioc_userspace_one(zfs_cmd_t *zc)
5324 if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS)
5325 return (SET_ERROR(EINVAL));
5327 error = zfsvfs_hold(zc->zc_name, FTAG, &zfsvfs, B_FALSE);
5331 error = zfs_userspace_one(zfsvfs,
5332 zc->zc_objset_type, zc->zc_value, zc->zc_guid, &zc->zc_cookie);
5333 zfsvfs_rele(zfsvfs, FTAG);
5340 * zc_name name of filesystem
5341 * zc_cookie zap cursor
5342 * zc_objset_type zfs_userquota_prop_t
5343 * zc_nvlist_dst[_size] buffer to fill (not really an nvlist)
5346 * zc_nvlist_dst[_size] data buffer (array of zfs_useracct_t)
5347 * zc_cookie zap cursor
5350 zfs_ioc_userspace_many(zfs_cmd_t *zc)
5353 int bufsize = zc->zc_nvlist_dst_size;
5356 return (SET_ERROR(ENOMEM));
5358 int error = zfsvfs_hold(zc->zc_name, FTAG, &zfsvfs, B_FALSE);
5362 void *buf = vmem_alloc(bufsize, KM_SLEEP);
5364 error = zfs_userspace_many(zfsvfs, zc->zc_objset_type, &zc->zc_cookie,
5365 buf, &zc->zc_nvlist_dst_size);
5368 error = xcopyout(buf,
5369 (void *)(uintptr_t)zc->zc_nvlist_dst,
5370 zc->zc_nvlist_dst_size);
5372 vmem_free(buf, bufsize);
5373 zfsvfs_rele(zfsvfs, FTAG);
5380 * zc_name name of filesystem
5386 zfs_ioc_userspace_upgrade(zfs_cmd_t *zc)
5392 if (getzfsvfs(zc->zc_name, &zfsvfs) == 0) {
5393 if (!dmu_objset_userused_enabled(zfsvfs->z_os)) {
5395 * If userused is not enabled, it may be because the
5396 * objset needs to be closed & reopened (to grow the
5397 * objset_phys_t). Suspend/resume the fs will do that.
5399 dsl_dataset_t *ds, *newds;
5401 ds = dmu_objset_ds(zfsvfs->z_os);
5402 error = zfs_suspend_fs(zfsvfs);
5404 dmu_objset_refresh_ownership(ds, &newds,
5406 error = zfs_resume_fs(zfsvfs, newds);
5410 error = dmu_objset_userspace_upgrade(zfsvfs->z_os);
5411 deactivate_super(zfsvfs->z_sb);
5413 /* XXX kind of reading contents without owning */
5414 error = dmu_objset_hold_flags(zc->zc_name, B_TRUE, FTAG, &os);
5418 error = dmu_objset_userspace_upgrade(os);
5419 dmu_objset_rele_flags(os, B_TRUE, FTAG);
5427 * zc_name name of filesystem
5433 zfs_ioc_id_quota_upgrade(zfs_cmd_t *zc)
5438 error = dmu_objset_hold_flags(zc->zc_name, B_TRUE, FTAG, &os);
5442 if (dmu_objset_userobjspace_upgradable(os) ||
5443 dmu_objset_projectquota_upgradable(os)) {
5444 mutex_enter(&os->os_upgrade_lock);
5445 if (os->os_upgrade_id == 0) {
5446 /* clear potential error code and retry */
5447 os->os_upgrade_status = 0;
5448 mutex_exit(&os->os_upgrade_lock);
5450 dmu_objset_id_quota_upgrade(os);
5452 mutex_exit(&os->os_upgrade_lock);
5455 dsl_pool_rele(dmu_objset_pool(os), FTAG);
5457 taskq_wait_id(os->os_spa->spa_upgrade_taskq, os->os_upgrade_id);
5458 error = os->os_upgrade_status;
5460 dsl_pool_rele(dmu_objset_pool(os), FTAG);
5463 dsl_dataset_rele_flags(dmu_objset_ds(os), DS_HOLD_FLAG_DECRYPT, FTAG);
5469 zfs_ioc_share(zfs_cmd_t *zc)
5471 return (SET_ERROR(ENOSYS));
5474 ace_t full_access[] = {
5475 {(uid_t)-1, ACE_ALL_PERMS, ACE_EVERYONE, 0}
5480 * zc_name name of containing filesystem
5481 * zc_obj object # beyond which we want next in-use object #
5484 * zc_obj next in-use object #
5487 zfs_ioc_next_obj(zfs_cmd_t *zc)
5489 objset_t *os = NULL;
5492 error = dmu_objset_hold(zc->zc_name, FTAG, &os);
5496 error = dmu_object_next(os, &zc->zc_obj, B_FALSE, 0);
5498 dmu_objset_rele(os, FTAG);
5504 * zc_name name of filesystem
5505 * zc_value prefix name for snapshot
5506 * zc_cleanup_fd cleanup-on-exit file descriptor for calling process
5509 * zc_value short name of new snapshot
5512 zfs_ioc_tmp_snapshot(zfs_cmd_t *zc)
5519 error = zfs_onexit_fd_hold(zc->zc_cleanup_fd, &minor);
5523 snap_name = kmem_asprintf("%s-%016llx", zc->zc_value,
5524 (u_longlong_t)ddi_get_lbolt64());
5525 hold_name = kmem_asprintf("%%%s", zc->zc_value);
5527 error = dsl_dataset_snapshot_tmp(zc->zc_name, snap_name, minor,
5530 (void) strlcpy(zc->zc_value, snap_name,
5531 sizeof (zc->zc_value));
5534 zfs_onexit_fd_rele(zc->zc_cleanup_fd);
5540 * zc_name name of "to" snapshot
5541 * zc_value name of "from" snapshot
5542 * zc_cookie file descriptor to write diff data on
5545 * dmu_diff_record_t's to the file descriptor
5548 zfs_ioc_diff(zfs_cmd_t *zc)
5554 fp = getf(zc->zc_cookie);
5556 return (SET_ERROR(EBADF));
5560 error = dmu_diff(zc->zc_name, zc->zc_value, fp->f_vnode, &off);
5562 if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0)
5564 releasef(zc->zc_cookie);
5570 zfs_ioc_smb_acl(zfs_cmd_t *zc)
5572 return (SET_ERROR(ENOTSUP));
5577 * "holds" -> { snapname -> holdname (string), ... }
5578 * (optional) "cleanup_fd" -> fd (int32)
5582 * snapname -> error value (int32)
5586 static const zfs_ioc_key_t zfs_keys_hold[] = {
5587 {"holds", DATA_TYPE_NVLIST, 0},
5588 {"cleanup_fd", DATA_TYPE_INT32, ZK_OPTIONAL},
5593 zfs_ioc_hold(const char *pool, nvlist_t *args, nvlist_t *errlist)
5597 int cleanup_fd = -1;
5601 holds = fnvlist_lookup_nvlist(args, "holds");
5603 /* make sure the user didn't pass us any invalid (empty) tags */
5604 for (pair = nvlist_next_nvpair(holds, NULL); pair != NULL;
5605 pair = nvlist_next_nvpair(holds, pair)) {
5608 error = nvpair_value_string(pair, &htag);
5610 return (SET_ERROR(error));
5612 if (strlen(htag) == 0)
5613 return (SET_ERROR(EINVAL));
5616 if (nvlist_lookup_int32(args, "cleanup_fd", &cleanup_fd) == 0) {
5617 error = zfs_onexit_fd_hold(cleanup_fd, &minor);
5622 error = dsl_dataset_user_hold(holds, minor, errlist);
5624 zfs_onexit_fd_rele(cleanup_fd);
5629 * innvl is not used.
5632 * holdname -> time added (uint64 seconds since epoch)
5636 static const zfs_ioc_key_t zfs_keys_get_holds[] = {
5642 zfs_ioc_get_holds(const char *snapname, nvlist_t *args, nvlist_t *outnvl)
5644 return (dsl_dataset_get_holds(snapname, outnvl));
5649 * snapname -> { holdname, ... }
5654 * snapname -> error value (int32)
5658 static const zfs_ioc_key_t zfs_keys_release[] = {
5659 {"<snapname>...", DATA_TYPE_NVLIST, ZK_WILDCARDLIST},
5664 zfs_ioc_release(const char *pool, nvlist_t *holds, nvlist_t *errlist)
5666 return (dsl_dataset_user_release(holds, errlist));
5671 * zc_guid flags (ZEVENT_NONBLOCK)
5672 * zc_cleanup_fd zevent file descriptor
5675 * zc_nvlist_dst next nvlist event
5676 * zc_cookie dropped events since last get
5679 zfs_ioc_events_next(zfs_cmd_t *zc)
5682 nvlist_t *event = NULL;
5684 uint64_t dropped = 0;
5687 error = zfs_zevent_fd_hold(zc->zc_cleanup_fd, &minor, &ze);
5692 error = zfs_zevent_next(ze, &event,
5693 &zc->zc_nvlist_dst_size, &dropped);
5694 if (event != NULL) {
5695 zc->zc_cookie = dropped;
5696 error = put_nvlist(zc, event);
5700 if (zc->zc_guid & ZEVENT_NONBLOCK)
5703 if ((error == 0) || (error != ENOENT))
5706 error = zfs_zevent_wait(ze);
5711 zfs_zevent_fd_rele(zc->zc_cleanup_fd);
5718 * zc_cookie cleared events count
5721 zfs_ioc_events_clear(zfs_cmd_t *zc)
5725 zfs_zevent_drain_all(&count);
5726 zc->zc_cookie = count;
5733 * zc_guid eid | ZEVENT_SEEK_START | ZEVENT_SEEK_END
5734 * zc_cleanup zevent file descriptor
5737 zfs_ioc_events_seek(zfs_cmd_t *zc)
5743 error = zfs_zevent_fd_hold(zc->zc_cleanup_fd, &minor, &ze);
5747 error = zfs_zevent_seek(ze, zc->zc_guid);
5748 zfs_zevent_fd_rele(zc->zc_cleanup_fd);
5755 * zc_name name of new filesystem or snapshot
5756 * zc_value full name of old snapshot
5759 * zc_cookie space in bytes
5760 * zc_objset_type compressed space in bytes
5761 * zc_perm_action uncompressed space in bytes
5764 zfs_ioc_space_written(zfs_cmd_t *zc)
5768 dsl_dataset_t *new, *old;
5770 error = dsl_pool_hold(zc->zc_name, FTAG, &dp);
5773 error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &new);
5775 dsl_pool_rele(dp, FTAG);
5778 error = dsl_dataset_hold(dp, zc->zc_value, FTAG, &old);
5780 dsl_dataset_rele(new, FTAG);
5781 dsl_pool_rele(dp, FTAG);
5785 error = dsl_dataset_space_written(old, new, &zc->zc_cookie,
5786 &zc->zc_objset_type, &zc->zc_perm_action);
5787 dsl_dataset_rele(old, FTAG);
5788 dsl_dataset_rele(new, FTAG);
5789 dsl_pool_rele(dp, FTAG);
5795 * "firstsnap" -> snapshot name
5799 * "used" -> space in bytes
5800 * "compressed" -> compressed space in bytes
5801 * "uncompressed" -> uncompressed space in bytes
5804 static const zfs_ioc_key_t zfs_keys_space_snaps[] = {
5805 {"firstsnap", DATA_TYPE_STRING, 0},
5809 zfs_ioc_space_snaps(const char *lastsnap, nvlist_t *innvl, nvlist_t *outnvl)
5813 dsl_dataset_t *new, *old;
5815 uint64_t used, comp, uncomp;
5817 firstsnap = fnvlist_lookup_string(innvl, "firstsnap");
5819 error = dsl_pool_hold(lastsnap, FTAG, &dp);
5823 error = dsl_dataset_hold(dp, lastsnap, FTAG, &new);
5824 if (error == 0 && !new->ds_is_snapshot) {
5825 dsl_dataset_rele(new, FTAG);
5826 error = SET_ERROR(EINVAL);
5829 dsl_pool_rele(dp, FTAG);
5832 error = dsl_dataset_hold(dp, firstsnap, FTAG, &old);
5833 if (error == 0 && !old->ds_is_snapshot) {
5834 dsl_dataset_rele(old, FTAG);
5835 error = SET_ERROR(EINVAL);
5838 dsl_dataset_rele(new, FTAG);
5839 dsl_pool_rele(dp, FTAG);
5843 error = dsl_dataset_space_wouldfree(old, new, &used, &comp, &uncomp);
5844 dsl_dataset_rele(old, FTAG);
5845 dsl_dataset_rele(new, FTAG);
5846 dsl_pool_rele(dp, FTAG);
5847 fnvlist_add_uint64(outnvl, "used", used);
5848 fnvlist_add_uint64(outnvl, "compressed", comp);
5849 fnvlist_add_uint64(outnvl, "uncompressed", uncomp);
5855 * "fd" -> file descriptor to write stream to (int32)
5856 * (optional) "fromsnap" -> full snap name to send an incremental from
5857 * (optional) "largeblockok" -> (value ignored)
5858 * indicates that blocks > 128KB are permitted
5859 * (optional) "embedok" -> (value ignored)
5860 * presence indicates DRR_WRITE_EMBEDDED records are permitted
5861 * (optional) "compressok" -> (value ignored)
5862 * presence indicates compressed DRR_WRITE records are permitted
5863 * (optional) "rawok" -> (value ignored)
5864 * presence indicates raw encrypted records should be used.
5865 * (optional) "resume_object" and "resume_offset" -> (uint64)
5866 * if present, resume send stream from specified object and offset.
5871 static const zfs_ioc_key_t zfs_keys_send_new[] = {
5872 {"fd", DATA_TYPE_INT32, 0},
5873 {"fromsnap", DATA_TYPE_STRING, ZK_OPTIONAL},
5874 {"largeblockok", DATA_TYPE_BOOLEAN, ZK_OPTIONAL},
5875 {"embedok", DATA_TYPE_BOOLEAN, ZK_OPTIONAL},
5876 {"compressok", DATA_TYPE_BOOLEAN, ZK_OPTIONAL},
5877 {"rawok", DATA_TYPE_BOOLEAN, ZK_OPTIONAL},
5878 {"resume_object", DATA_TYPE_UINT64, ZK_OPTIONAL},
5879 {"resume_offset", DATA_TYPE_UINT64, ZK_OPTIONAL},
5884 zfs_ioc_send_new(const char *snapname, nvlist_t *innvl, nvlist_t *outnvl)
5888 char *fromname = NULL;
5891 boolean_t largeblockok;
5893 boolean_t compressok;
5895 uint64_t resumeobj = 0;
5896 uint64_t resumeoff = 0;
5898 fd = fnvlist_lookup_int32(innvl, "fd");
5900 (void) nvlist_lookup_string(innvl, "fromsnap", &fromname);
5902 largeblockok = nvlist_exists(innvl, "largeblockok");
5903 embedok = nvlist_exists(innvl, "embedok");
5904 compressok = nvlist_exists(innvl, "compressok");
5905 rawok = nvlist_exists(innvl, "rawok");
5907 (void) nvlist_lookup_uint64(innvl, "resume_object", &resumeobj);
5908 (void) nvlist_lookup_uint64(innvl, "resume_offset", &resumeoff);
5910 if ((fp = getf(fd)) == NULL)
5911 return (SET_ERROR(EBADF));
5914 error = dmu_send(snapname, fromname, embedok, largeblockok, compressok,
5915 rawok, fd, resumeobj, resumeoff, fp->f_vnode, &off);
5917 if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0)
5925 * Determine approximately how large a zfs send stream will be -- the number
5926 * of bytes that will be written to the fd supplied to zfs_ioc_send_new().
5929 * (optional) "from" -> full snap or bookmark name to send an incremental
5931 * (optional) "largeblockok" -> (value ignored)
5932 * indicates that blocks > 128KB are permitted
5933 * (optional) "embedok" -> (value ignored)
5934 * presence indicates DRR_WRITE_EMBEDDED records are permitted
5935 * (optional) "compressok" -> (value ignored)
5936 * presence indicates compressed DRR_WRITE records are permitted
5937 * (optional) "rawok" -> (value ignored)
5938 * presence indicates raw encrypted records should be used.
5942 * "space" -> bytes of space (uint64)
5945 static const zfs_ioc_key_t zfs_keys_send_space[] = {
5946 {"from", DATA_TYPE_STRING, ZK_OPTIONAL},
5947 {"fromsnap", DATA_TYPE_STRING, ZK_OPTIONAL},
5948 {"largeblockok", DATA_TYPE_BOOLEAN, ZK_OPTIONAL},
5949 {"embedok", DATA_TYPE_BOOLEAN, ZK_OPTIONAL},
5950 {"compressok", DATA_TYPE_BOOLEAN, ZK_OPTIONAL},
5951 {"rawok", DATA_TYPE_BOOLEAN, ZK_OPTIONAL},
5955 zfs_ioc_send_space(const char *snapname, nvlist_t *innvl, nvlist_t *outnvl)
5958 dsl_dataset_t *tosnap;
5961 boolean_t compressok;
5965 error = dsl_pool_hold(snapname, FTAG, &dp);
5969 error = dsl_dataset_hold(dp, snapname, FTAG, &tosnap);
5971 dsl_pool_rele(dp, FTAG);
5975 compressok = nvlist_exists(innvl, "compressok");
5976 rawok = nvlist_exists(innvl, "rawok");
5978 error = nvlist_lookup_string(innvl, "from", &fromname);
5980 if (strchr(fromname, '@') != NULL) {
5982 * If from is a snapshot, hold it and use the more
5983 * efficient dmu_send_estimate to estimate send space
5984 * size using deadlists.
5986 dsl_dataset_t *fromsnap;
5987 error = dsl_dataset_hold(dp, fromname, FTAG, &fromsnap);
5990 error = dmu_send_estimate(tosnap, fromsnap,
5991 compressok || rawok, &space);
5992 dsl_dataset_rele(fromsnap, FTAG);
5993 } else if (strchr(fromname, '#') != NULL) {
5995 * If from is a bookmark, fetch the creation TXG of the
5996 * snapshot it was created from and use that to find
5997 * blocks that were born after it.
5999 zfs_bookmark_phys_t frombm;
6001 error = dsl_bookmark_lookup(dp, fromname, tosnap,
6005 error = dmu_send_estimate_from_txg(tosnap,
6006 frombm.zbm_creation_txg, compressok || rawok,
6010 * from is not properly formatted as a snapshot or
6013 error = SET_ERROR(EINVAL);
6018 * If estimating the size of a full send, use dmu_send_estimate.
6020 error = dmu_send_estimate(tosnap, NULL, compressok || rawok,
6024 fnvlist_add_uint64(outnvl, "space", space);
6027 dsl_dataset_rele(tosnap, FTAG);
6028 dsl_pool_rele(dp, FTAG);
6033 * Sync the currently open TXG to disk for the specified pool.
6034 * This is somewhat similar to 'zfs_sync()'.
6035 * For cases that do not result in error this ioctl will wait for
6036 * the currently open TXG to commit before returning back to the caller.
6039 * "force" -> when true, force uberblock update even if there is no dirty data.
6040 * In addition this will cause the vdev configuration to be written
6041 * out including updating the zpool cache file. (boolean_t)
6046 static const zfs_ioc_key_t zfs_keys_pool_sync[] = {
6047 {"force", DATA_TYPE_BOOLEAN_VALUE, 0},
6052 zfs_ioc_pool_sync(const char *pool, nvlist_t *innvl, nvlist_t *onvl)
6055 boolean_t force = B_FALSE;
6058 if ((err = spa_open(pool, &spa, FTAG)) != 0)
6062 force = fnvlist_lookup_boolean_value(innvl, "force");
6065 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_WRITER);
6066 vdev_config_dirty(spa->spa_root_vdev);
6067 spa_config_exit(spa, SCL_CONFIG, FTAG);
6069 txg_wait_synced(spa_get_dsl(spa), 0);
6071 spa_close(spa, FTAG);
6077 * Load a user's wrapping key into the kernel.
6079 * "hidden_args" -> { "wkeydata" -> value }
6080 * raw uint8_t array of encryption wrapping key data (32 bytes)
6081 * (optional) "noop" -> (value ignored)
6082 * presence indicated key should only be verified, not loaded
6085 static const zfs_ioc_key_t zfs_keys_load_key[] = {
6086 {"hidden_args", DATA_TYPE_NVLIST, 0},
6087 {"noop", DATA_TYPE_BOOLEAN, ZK_OPTIONAL},
6092 zfs_ioc_load_key(const char *dsname, nvlist_t *innvl, nvlist_t *outnvl)
6095 dsl_crypto_params_t *dcp = NULL;
6096 nvlist_t *hidden_args;
6097 boolean_t noop = nvlist_exists(innvl, "noop");
6099 if (strchr(dsname, '@') != NULL || strchr(dsname, '%') != NULL) {
6100 ret = SET_ERROR(EINVAL);
6104 hidden_args = fnvlist_lookup_nvlist(innvl, ZPOOL_HIDDEN_ARGS);
6106 ret = dsl_crypto_params_create_nvlist(DCP_CMD_NONE, NULL,
6111 ret = spa_keystore_load_wkey(dsname, dcp, noop);
6115 dsl_crypto_params_free(dcp, noop);
6120 dsl_crypto_params_free(dcp, B_TRUE);
6125 * Unload a user's wrapping key from the kernel.
6126 * Both innvl and outnvl are unused.
6128 static const zfs_ioc_key_t zfs_keys_unload_key[] = {
6134 zfs_ioc_unload_key(const char *dsname, nvlist_t *innvl, nvlist_t *outnvl)
6138 if (strchr(dsname, '@') != NULL || strchr(dsname, '%') != NULL) {
6139 ret = (SET_ERROR(EINVAL));
6143 ret = spa_keystore_unload_wkey(dsname);
6152 * Changes a user's wrapping key used to decrypt a dataset. The keyformat,
6153 * keylocation, pbkdf2salt, and pbkdf2iters properties can also be specified
6154 * here to change how the key is derived in userspace.
6157 * "hidden_args" (optional) -> { "wkeydata" -> value }
6158 * raw uint8_t array of new encryption wrapping key data (32 bytes)
6159 * "props" (optional) -> { prop -> value }
6164 static const zfs_ioc_key_t zfs_keys_change_key[] = {
6165 {"crypt_cmd", DATA_TYPE_UINT64, ZK_OPTIONAL},
6166 {"hidden_args", DATA_TYPE_NVLIST, ZK_OPTIONAL},
6167 {"props", DATA_TYPE_NVLIST, ZK_OPTIONAL},
6172 zfs_ioc_change_key(const char *dsname, nvlist_t *innvl, nvlist_t *outnvl)
6175 uint64_t cmd = DCP_CMD_NONE;
6176 dsl_crypto_params_t *dcp = NULL;
6177 nvlist_t *args = NULL, *hidden_args = NULL;
6179 if (strchr(dsname, '@') != NULL || strchr(dsname, '%') != NULL) {
6180 ret = (SET_ERROR(EINVAL));
6184 (void) nvlist_lookup_uint64(innvl, "crypt_cmd", &cmd);
6185 (void) nvlist_lookup_nvlist(innvl, "props", &args);
6186 (void) nvlist_lookup_nvlist(innvl, ZPOOL_HIDDEN_ARGS, &hidden_args);
6188 ret = dsl_crypto_params_create_nvlist(cmd, args, hidden_args, &dcp);
6192 ret = spa_keystore_change_key(dsname, dcp);
6196 dsl_crypto_params_free(dcp, B_FALSE);
6201 dsl_crypto_params_free(dcp, B_TRUE);
6205 static zfs_ioc_vec_t zfs_ioc_vec[ZFS_IOC_LAST - ZFS_IOC_FIRST];
6208 zfs_ioctl_register_legacy(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func,
6209 zfs_secpolicy_func_t *secpolicy, zfs_ioc_namecheck_t namecheck,
6210 boolean_t log_history, zfs_ioc_poolcheck_t pool_check)
6212 zfs_ioc_vec_t *vec = &zfs_ioc_vec[ioc - ZFS_IOC_FIRST];
6214 ASSERT3U(ioc, >=, ZFS_IOC_FIRST);
6215 ASSERT3U(ioc, <, ZFS_IOC_LAST);
6216 ASSERT3P(vec->zvec_legacy_func, ==, NULL);
6217 ASSERT3P(vec->zvec_func, ==, NULL);
6219 vec->zvec_legacy_func = func;
6220 vec->zvec_secpolicy = secpolicy;
6221 vec->zvec_namecheck = namecheck;
6222 vec->zvec_allow_log = log_history;
6223 vec->zvec_pool_check = pool_check;
6227 * See the block comment at the beginning of this file for details on
6228 * each argument to this function.
6231 zfs_ioctl_register(const char *name, zfs_ioc_t ioc, zfs_ioc_func_t *func,
6232 zfs_secpolicy_func_t *secpolicy, zfs_ioc_namecheck_t namecheck,
6233 zfs_ioc_poolcheck_t pool_check, boolean_t smush_outnvlist,
6234 boolean_t allow_log, const zfs_ioc_key_t *nvl_keys, size_t num_keys)
6236 zfs_ioc_vec_t *vec = &zfs_ioc_vec[ioc - ZFS_IOC_FIRST];
6238 ASSERT3U(ioc, >=, ZFS_IOC_FIRST);
6239 ASSERT3U(ioc, <, ZFS_IOC_LAST);
6240 ASSERT3P(vec->zvec_legacy_func, ==, NULL);
6241 ASSERT3P(vec->zvec_func, ==, NULL);
6243 /* if we are logging, the name must be valid */
6244 ASSERT(!allow_log || namecheck != NO_NAME);
6246 vec->zvec_name = name;
6247 vec->zvec_func = func;
6248 vec->zvec_secpolicy = secpolicy;
6249 vec->zvec_namecheck = namecheck;
6250 vec->zvec_pool_check = pool_check;
6251 vec->zvec_smush_outnvlist = smush_outnvlist;
6252 vec->zvec_allow_log = allow_log;
6253 vec->zvec_nvl_keys = nvl_keys;
6254 vec->zvec_nvl_key_count = num_keys;
6258 zfs_ioctl_register_pool(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func,
6259 zfs_secpolicy_func_t *secpolicy, boolean_t log_history,
6260 zfs_ioc_poolcheck_t pool_check)
6262 zfs_ioctl_register_legacy(ioc, func, secpolicy,
6263 POOL_NAME, log_history, pool_check);
6267 zfs_ioctl_register_dataset_nolog(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func,
6268 zfs_secpolicy_func_t *secpolicy, zfs_ioc_poolcheck_t pool_check)
6270 zfs_ioctl_register_legacy(ioc, func, secpolicy,
6271 DATASET_NAME, B_FALSE, pool_check);
6275 zfs_ioctl_register_pool_modify(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func)
6277 zfs_ioctl_register_legacy(ioc, func, zfs_secpolicy_config,
6278 POOL_NAME, B_TRUE, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY);
6282 zfs_ioctl_register_pool_meta(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func,
6283 zfs_secpolicy_func_t *secpolicy)
6285 zfs_ioctl_register_legacy(ioc, func, secpolicy,
6286 NO_NAME, B_FALSE, POOL_CHECK_NONE);
6290 zfs_ioctl_register_dataset_read_secpolicy(zfs_ioc_t ioc,
6291 zfs_ioc_legacy_func_t *func, zfs_secpolicy_func_t *secpolicy)
6293 zfs_ioctl_register_legacy(ioc, func, secpolicy,
6294 DATASET_NAME, B_FALSE, POOL_CHECK_SUSPENDED);
6298 zfs_ioctl_register_dataset_read(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func)
6300 zfs_ioctl_register_dataset_read_secpolicy(ioc, func,
6301 zfs_secpolicy_read);
6305 zfs_ioctl_register_dataset_modify(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func,
6306 zfs_secpolicy_func_t *secpolicy)
6308 zfs_ioctl_register_legacy(ioc, func, secpolicy,
6309 DATASET_NAME, B_TRUE, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY);
6313 zfs_ioctl_init(void)
6315 zfs_ioctl_register("snapshot", ZFS_IOC_SNAPSHOT,
6316 zfs_ioc_snapshot, zfs_secpolicy_snapshot, POOL_NAME,
6317 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE,
6318 zfs_keys_snapshot, ARRAY_SIZE(zfs_keys_snapshot));
6320 zfs_ioctl_register("log_history", ZFS_IOC_LOG_HISTORY,
6321 zfs_ioc_log_history, zfs_secpolicy_log_history, NO_NAME,
6322 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_FALSE, B_FALSE,
6323 zfs_keys_log_history, ARRAY_SIZE(zfs_keys_log_history));
6325 zfs_ioctl_register("space_snaps", ZFS_IOC_SPACE_SNAPS,
6326 zfs_ioc_space_snaps, zfs_secpolicy_read, DATASET_NAME,
6327 POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE,
6328 zfs_keys_space_snaps, ARRAY_SIZE(zfs_keys_space_snaps));
6330 zfs_ioctl_register("send", ZFS_IOC_SEND_NEW,
6331 zfs_ioc_send_new, zfs_secpolicy_send_new, DATASET_NAME,
6332 POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE,
6333 zfs_keys_send_new, ARRAY_SIZE(zfs_keys_send_new));
6335 zfs_ioctl_register("send_space", ZFS_IOC_SEND_SPACE,
6336 zfs_ioc_send_space, zfs_secpolicy_read, DATASET_NAME,
6337 POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE,
6338 zfs_keys_send_space, ARRAY_SIZE(zfs_keys_send_space));
6340 zfs_ioctl_register("create", ZFS_IOC_CREATE,
6341 zfs_ioc_create, zfs_secpolicy_create_clone, DATASET_NAME,
6342 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE,
6343 zfs_keys_create, ARRAY_SIZE(zfs_keys_create));
6345 zfs_ioctl_register("clone", ZFS_IOC_CLONE,
6346 zfs_ioc_clone, zfs_secpolicy_create_clone, DATASET_NAME,
6347 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE,
6348 zfs_keys_clone, ARRAY_SIZE(zfs_keys_clone));
6350 zfs_ioctl_register("remap", ZFS_IOC_REMAP,
6351 zfs_ioc_remap, zfs_secpolicy_remap, DATASET_NAME,
6352 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_FALSE, B_TRUE,
6353 zfs_keys_remap, ARRAY_SIZE(zfs_keys_remap));
6355 zfs_ioctl_register("destroy_snaps", ZFS_IOC_DESTROY_SNAPS,
6356 zfs_ioc_destroy_snaps, zfs_secpolicy_destroy_snaps, POOL_NAME,
6357 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE,
6358 zfs_keys_destroy_snaps, ARRAY_SIZE(zfs_keys_destroy_snaps));
6360 zfs_ioctl_register("hold", ZFS_IOC_HOLD,
6361 zfs_ioc_hold, zfs_secpolicy_hold, POOL_NAME,
6362 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE,
6363 zfs_keys_hold, ARRAY_SIZE(zfs_keys_hold));
6364 zfs_ioctl_register("release", ZFS_IOC_RELEASE,
6365 zfs_ioc_release, zfs_secpolicy_release, POOL_NAME,
6366 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE,
6367 zfs_keys_release, ARRAY_SIZE(zfs_keys_release));
6369 zfs_ioctl_register("get_holds", ZFS_IOC_GET_HOLDS,
6370 zfs_ioc_get_holds, zfs_secpolicy_read, DATASET_NAME,
6371 POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE,
6372 zfs_keys_get_holds, ARRAY_SIZE(zfs_keys_get_holds));
6374 zfs_ioctl_register("rollback", ZFS_IOC_ROLLBACK,
6375 zfs_ioc_rollback, zfs_secpolicy_rollback, DATASET_NAME,
6376 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_FALSE, B_TRUE,
6377 zfs_keys_rollback, ARRAY_SIZE(zfs_keys_rollback));
6379 zfs_ioctl_register("bookmark", ZFS_IOC_BOOKMARK,
6380 zfs_ioc_bookmark, zfs_secpolicy_bookmark, POOL_NAME,
6381 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE,
6382 zfs_keys_bookmark, ARRAY_SIZE(zfs_keys_bookmark));
6384 zfs_ioctl_register("get_bookmarks", ZFS_IOC_GET_BOOKMARKS,
6385 zfs_ioc_get_bookmarks, zfs_secpolicy_read, DATASET_NAME,
6386 POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE,
6387 zfs_keys_get_bookmarks, ARRAY_SIZE(zfs_keys_get_bookmarks));
6389 zfs_ioctl_register("destroy_bookmarks", ZFS_IOC_DESTROY_BOOKMARKS,
6390 zfs_ioc_destroy_bookmarks, zfs_secpolicy_destroy_bookmarks,
6392 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE,
6393 zfs_keys_destroy_bookmarks,
6394 ARRAY_SIZE(zfs_keys_destroy_bookmarks));
6396 zfs_ioctl_register("receive", ZFS_IOC_RECV_NEW,
6397 zfs_ioc_recv_new, zfs_secpolicy_recv_new, DATASET_NAME,
6398 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE,
6399 zfs_keys_recv_new, ARRAY_SIZE(zfs_keys_recv_new));
6400 zfs_ioctl_register("load-key", ZFS_IOC_LOAD_KEY,
6401 zfs_ioc_load_key, zfs_secpolicy_load_key,
6402 DATASET_NAME, POOL_CHECK_SUSPENDED, B_TRUE, B_TRUE,
6403 zfs_keys_load_key, ARRAY_SIZE(zfs_keys_load_key));
6404 zfs_ioctl_register("unload-key", ZFS_IOC_UNLOAD_KEY,
6405 zfs_ioc_unload_key, zfs_secpolicy_load_key,
6406 DATASET_NAME, POOL_CHECK_SUSPENDED, B_TRUE, B_TRUE,
6407 zfs_keys_unload_key, ARRAY_SIZE(zfs_keys_unload_key));
6408 zfs_ioctl_register("change-key", ZFS_IOC_CHANGE_KEY,
6409 zfs_ioc_change_key, zfs_secpolicy_change_key,
6410 DATASET_NAME, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY,
6411 B_TRUE, B_TRUE, zfs_keys_change_key,
6412 ARRAY_SIZE(zfs_keys_change_key));
6414 zfs_ioctl_register("sync", ZFS_IOC_POOL_SYNC,
6415 zfs_ioc_pool_sync, zfs_secpolicy_none, POOL_NAME,
6416 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_FALSE, B_FALSE,
6417 zfs_keys_pool_sync, ARRAY_SIZE(zfs_keys_pool_sync));
6418 zfs_ioctl_register("reopen", ZFS_IOC_POOL_REOPEN, zfs_ioc_pool_reopen,
6419 zfs_secpolicy_config, POOL_NAME, POOL_CHECK_SUSPENDED, B_TRUE,
6420 B_TRUE, zfs_keys_pool_reopen, ARRAY_SIZE(zfs_keys_pool_reopen));
6422 zfs_ioctl_register("channel_program", ZFS_IOC_CHANNEL_PROGRAM,
6423 zfs_ioc_channel_program, zfs_secpolicy_config,
6424 POOL_NAME, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE,
6425 B_TRUE, zfs_keys_channel_program,
6426 ARRAY_SIZE(zfs_keys_channel_program));
6428 zfs_ioctl_register("zpool_checkpoint", ZFS_IOC_POOL_CHECKPOINT,
6429 zfs_ioc_pool_checkpoint, zfs_secpolicy_config, POOL_NAME,
6430 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE,
6431 zfs_keys_pool_checkpoint, ARRAY_SIZE(zfs_keys_pool_checkpoint));
6433 zfs_ioctl_register("zpool_discard_checkpoint",
6434 ZFS_IOC_POOL_DISCARD_CHECKPOINT, zfs_ioc_pool_discard_checkpoint,
6435 zfs_secpolicy_config, POOL_NAME,
6436 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE,
6437 zfs_keys_pool_discard_checkpoint,
6438 ARRAY_SIZE(zfs_keys_pool_discard_checkpoint));
6440 /* IOCTLS that use the legacy function signature */
6442 zfs_ioctl_register_legacy(ZFS_IOC_POOL_FREEZE, zfs_ioc_pool_freeze,
6443 zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_READONLY);
6445 zfs_ioctl_register_pool(ZFS_IOC_POOL_CREATE, zfs_ioc_pool_create,
6446 zfs_secpolicy_config, B_TRUE, POOL_CHECK_NONE);
6447 zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_SCAN,
6449 zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_UPGRADE,
6450 zfs_ioc_pool_upgrade);
6451 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_ADD,
6453 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_REMOVE,
6454 zfs_ioc_vdev_remove);
6455 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SET_STATE,
6456 zfs_ioc_vdev_set_state);
6457 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_ATTACH,
6458 zfs_ioc_vdev_attach);
6459 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_DETACH,
6460 zfs_ioc_vdev_detach);
6461 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SETPATH,
6462 zfs_ioc_vdev_setpath);
6463 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SETFRU,
6464 zfs_ioc_vdev_setfru);
6465 zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_SET_PROPS,
6466 zfs_ioc_pool_set_props);
6467 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SPLIT,
6468 zfs_ioc_vdev_split);
6469 zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_REGUID,
6470 zfs_ioc_pool_reguid);
6472 zfs_ioctl_register_pool_meta(ZFS_IOC_POOL_CONFIGS,
6473 zfs_ioc_pool_configs, zfs_secpolicy_none);
6474 zfs_ioctl_register_pool_meta(ZFS_IOC_POOL_TRYIMPORT,
6475 zfs_ioc_pool_tryimport, zfs_secpolicy_config);
6476 zfs_ioctl_register_pool_meta(ZFS_IOC_INJECT_FAULT,
6477 zfs_ioc_inject_fault, zfs_secpolicy_inject);
6478 zfs_ioctl_register_pool_meta(ZFS_IOC_CLEAR_FAULT,
6479 zfs_ioc_clear_fault, zfs_secpolicy_inject);
6480 zfs_ioctl_register_pool_meta(ZFS_IOC_INJECT_LIST_NEXT,
6481 zfs_ioc_inject_list_next, zfs_secpolicy_inject);
6484 * pool destroy, and export don't log the history as part of
6485 * zfsdev_ioctl, but rather zfs_ioc_pool_export
6486 * does the logging of those commands.
6488 zfs_ioctl_register_pool(ZFS_IOC_POOL_DESTROY, zfs_ioc_pool_destroy,
6489 zfs_secpolicy_config, B_FALSE, POOL_CHECK_SUSPENDED);
6490 zfs_ioctl_register_pool(ZFS_IOC_POOL_EXPORT, zfs_ioc_pool_export,
6491 zfs_secpolicy_config, B_FALSE, POOL_CHECK_SUSPENDED);
6493 zfs_ioctl_register_pool(ZFS_IOC_POOL_STATS, zfs_ioc_pool_stats,
6494 zfs_secpolicy_read, B_FALSE, POOL_CHECK_NONE);
6495 zfs_ioctl_register_pool(ZFS_IOC_POOL_GET_PROPS, zfs_ioc_pool_get_props,
6496 zfs_secpolicy_read, B_FALSE, POOL_CHECK_NONE);
6498 zfs_ioctl_register_pool(ZFS_IOC_ERROR_LOG, zfs_ioc_error_log,
6499 zfs_secpolicy_inject, B_FALSE, POOL_CHECK_SUSPENDED);
6500 zfs_ioctl_register_pool(ZFS_IOC_DSOBJ_TO_DSNAME,
6501 zfs_ioc_dsobj_to_dsname,
6502 zfs_secpolicy_diff, B_FALSE, POOL_CHECK_SUSPENDED);
6503 zfs_ioctl_register_pool(ZFS_IOC_POOL_GET_HISTORY,
6504 zfs_ioc_pool_get_history,
6505 zfs_secpolicy_config, B_FALSE, POOL_CHECK_SUSPENDED);
6507 zfs_ioctl_register_pool(ZFS_IOC_POOL_IMPORT, zfs_ioc_pool_import,
6508 zfs_secpolicy_config, B_TRUE, POOL_CHECK_NONE);
6510 zfs_ioctl_register_pool(ZFS_IOC_CLEAR, zfs_ioc_clear,
6511 zfs_secpolicy_config, B_TRUE, POOL_CHECK_READONLY);
6513 zfs_ioctl_register_dataset_read(ZFS_IOC_SPACE_WRITTEN,
6514 zfs_ioc_space_written);
6515 zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_RECVD_PROPS,
6516 zfs_ioc_objset_recvd_props);
6517 zfs_ioctl_register_dataset_read(ZFS_IOC_NEXT_OBJ,
6519 zfs_ioctl_register_dataset_read(ZFS_IOC_GET_FSACL,
6521 zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_STATS,
6522 zfs_ioc_objset_stats);
6523 zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_ZPLPROPS,
6524 zfs_ioc_objset_zplprops);
6525 zfs_ioctl_register_dataset_read(ZFS_IOC_DATASET_LIST_NEXT,
6526 zfs_ioc_dataset_list_next);
6527 zfs_ioctl_register_dataset_read(ZFS_IOC_SNAPSHOT_LIST_NEXT,
6528 zfs_ioc_snapshot_list_next);
6529 zfs_ioctl_register_dataset_read(ZFS_IOC_SEND_PROGRESS,
6530 zfs_ioc_send_progress);
6532 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_DIFF,
6533 zfs_ioc_diff, zfs_secpolicy_diff);
6534 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_OBJ_TO_STATS,
6535 zfs_ioc_obj_to_stats, zfs_secpolicy_diff);
6536 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_OBJ_TO_PATH,
6537 zfs_ioc_obj_to_path, zfs_secpolicy_diff);
6538 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_USERSPACE_ONE,
6539 zfs_ioc_userspace_one, zfs_secpolicy_userspace_one);
6540 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_USERSPACE_MANY,
6541 zfs_ioc_userspace_many, zfs_secpolicy_userspace_many);
6542 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_SEND,
6543 zfs_ioc_send, zfs_secpolicy_send);
6545 zfs_ioctl_register_dataset_modify(ZFS_IOC_SET_PROP, zfs_ioc_set_prop,
6546 zfs_secpolicy_none);
6547 zfs_ioctl_register_dataset_modify(ZFS_IOC_DESTROY, zfs_ioc_destroy,
6548 zfs_secpolicy_destroy);
6549 zfs_ioctl_register_dataset_modify(ZFS_IOC_RENAME, zfs_ioc_rename,
6550 zfs_secpolicy_rename);
6551 zfs_ioctl_register_dataset_modify(ZFS_IOC_RECV, zfs_ioc_recv,
6552 zfs_secpolicy_recv);
6553 zfs_ioctl_register_dataset_modify(ZFS_IOC_PROMOTE, zfs_ioc_promote,
6554 zfs_secpolicy_promote);
6555 zfs_ioctl_register_dataset_modify(ZFS_IOC_INHERIT_PROP,
6556 zfs_ioc_inherit_prop, zfs_secpolicy_inherit_prop);
6557 zfs_ioctl_register_dataset_modify(ZFS_IOC_SET_FSACL, zfs_ioc_set_fsacl,
6558 zfs_secpolicy_set_fsacl);
6560 zfs_ioctl_register_dataset_nolog(ZFS_IOC_SHARE, zfs_ioc_share,
6561 zfs_secpolicy_share, POOL_CHECK_NONE);
6562 zfs_ioctl_register_dataset_nolog(ZFS_IOC_SMB_ACL, zfs_ioc_smb_acl,
6563 zfs_secpolicy_smb_acl, POOL_CHECK_NONE);
6564 zfs_ioctl_register_dataset_nolog(ZFS_IOC_USERSPACE_UPGRADE,
6565 zfs_ioc_userspace_upgrade, zfs_secpolicy_userspace_upgrade,
6566 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY);
6567 zfs_ioctl_register_dataset_nolog(ZFS_IOC_TMP_SNAPSHOT,
6568 zfs_ioc_tmp_snapshot, zfs_secpolicy_tmp_snapshot,
6569 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY);
6574 zfs_ioctl_register_legacy(ZFS_IOC_EVENTS_NEXT, zfs_ioc_events_next,
6575 zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_NONE);
6576 zfs_ioctl_register_legacy(ZFS_IOC_EVENTS_CLEAR, zfs_ioc_events_clear,
6577 zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_NONE);
6578 zfs_ioctl_register_legacy(ZFS_IOC_EVENTS_SEEK, zfs_ioc_events_seek,
6579 zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_NONE);
6583 * Verify that for non-legacy ioctls the input nvlist
6584 * pairs match against the expected input.
6586 * Possible errors are:
6587 * ZFS_ERR_IOC_ARG_UNAVAIL An unrecognized nvpair was encountered
6588 * ZFS_ERR_IOC_ARG_REQUIRED A required nvpair is missing
6589 * ZFS_ERR_IOC_ARG_BADTYPE Invalid type for nvpair
6592 zfs_check_input_nvpairs(nvlist_t *innvl, const zfs_ioc_vec_t *vec)
6594 const zfs_ioc_key_t *nvl_keys = vec->zvec_nvl_keys;
6595 boolean_t required_keys_found = B_FALSE;
6598 * examine each input pair
6600 for (nvpair_t *pair = nvlist_next_nvpair(innvl, NULL);
6601 pair != NULL; pair = nvlist_next_nvpair(innvl, pair)) {
6602 char *name = nvpair_name(pair);
6603 data_type_t type = nvpair_type(pair);
6604 boolean_t identified = B_FALSE;
6607 * check pair against the documented names and type
6609 for (int k = 0; k < vec->zvec_nvl_key_count; k++) {
6610 /* if not a wild card name, check for an exact match */
6611 if ((nvl_keys[k].zkey_flags & ZK_WILDCARDLIST) == 0 &&
6612 strcmp(nvl_keys[k].zkey_name, name) != 0)
6615 identified = B_TRUE;
6617 if (nvl_keys[k].zkey_type != DATA_TYPE_ANY &&
6618 nvl_keys[k].zkey_type != type) {
6619 return (SET_ERROR(ZFS_ERR_IOC_ARG_BADTYPE));
6622 if (nvl_keys[k].zkey_flags & ZK_OPTIONAL)
6625 required_keys_found = B_TRUE;
6629 /* allow an 'optional' key, everything else is invalid */
6631 (strcmp(name, "optional") != 0 ||
6632 type != DATA_TYPE_NVLIST)) {
6633 return (SET_ERROR(ZFS_ERR_IOC_ARG_UNAVAIL));
6637 /* verify that all required keys were found */
6638 for (int k = 0; k < vec->zvec_nvl_key_count; k++) {
6639 if (nvl_keys[k].zkey_flags & ZK_OPTIONAL)
6642 if (nvl_keys[k].zkey_flags & ZK_WILDCARDLIST) {
6643 /* at least one non-optionial key is expected here */
6644 if (!required_keys_found)
6645 return (SET_ERROR(ZFS_ERR_IOC_ARG_REQUIRED));
6649 if (!nvlist_exists(innvl, nvl_keys[k].zkey_name))
6650 return (SET_ERROR(ZFS_ERR_IOC_ARG_REQUIRED));
6657 pool_status_check(const char *name, zfs_ioc_namecheck_t type,
6658 zfs_ioc_poolcheck_t check)
6663 ASSERT(type == POOL_NAME || type == DATASET_NAME);
6665 if (check & POOL_CHECK_NONE)
6668 error = spa_open(name, &spa, FTAG);
6670 if ((check & POOL_CHECK_SUSPENDED) && spa_suspended(spa))
6671 error = SET_ERROR(EAGAIN);
6672 else if ((check & POOL_CHECK_READONLY) && !spa_writeable(spa))
6673 error = SET_ERROR(EROFS);
6674 spa_close(spa, FTAG);
6680 zfsdev_get_state_impl(minor_t minor, enum zfsdev_state_type which)
6684 for (zs = zfsdev_state_list; zs != NULL; zs = zs->zs_next) {
6685 if (zs->zs_minor == minor) {
6689 return (zs->zs_onexit);
6691 return (zs->zs_zevent);
6702 zfsdev_get_state(minor_t minor, enum zfsdev_state_type which)
6706 ptr = zfsdev_get_state_impl(minor, which);
6712 zfsdev_getminor(struct file *filp, minor_t *minorp)
6714 zfsdev_state_t *zs, *fpd;
6716 ASSERT(filp != NULL);
6717 ASSERT(!MUTEX_HELD(&zfsdev_state_lock));
6719 fpd = filp->private_data;
6721 return (SET_ERROR(EBADF));
6723 mutex_enter(&zfsdev_state_lock);
6725 for (zs = zfsdev_state_list; zs != NULL; zs = zs->zs_next) {
6727 if (zs->zs_minor == -1)
6731 *minorp = fpd->zs_minor;
6732 mutex_exit(&zfsdev_state_lock);
6737 mutex_exit(&zfsdev_state_lock);
6739 return (SET_ERROR(EBADF));
6743 * Find a free minor number. The zfsdev_state_list is expected to
6744 * be short since it is only a list of currently open file handles.
6747 zfsdev_minor_alloc(void)
6749 static minor_t last_minor = 0;
6752 ASSERT(MUTEX_HELD(&zfsdev_state_lock));
6754 for (m = last_minor + 1; m != last_minor; m++) {
6755 if (m > ZFSDEV_MAX_MINOR)
6757 if (zfsdev_get_state_impl(m, ZST_ALL) == NULL) {
6767 zfsdev_state_init(struct file *filp)
6769 zfsdev_state_t *zs, *zsprev = NULL;
6771 boolean_t newzs = B_FALSE;
6773 ASSERT(MUTEX_HELD(&zfsdev_state_lock));
6775 minor = zfsdev_minor_alloc();
6777 return (SET_ERROR(ENXIO));
6779 for (zs = zfsdev_state_list; zs != NULL; zs = zs->zs_next) {
6780 if (zs->zs_minor == -1)
6786 zs = kmem_zalloc(sizeof (zfsdev_state_t), KM_SLEEP);
6791 filp->private_data = zs;
6793 zfs_onexit_init((zfs_onexit_t **)&zs->zs_onexit);
6794 zfs_zevent_init((zfs_zevent_t **)&zs->zs_zevent);
6798 * In order to provide for lock-free concurrent read access
6799 * to the minor list in zfsdev_get_state_impl(), new entries
6800 * must be completely written before linking them into the
6801 * list whereas existing entries are already linked; the last
6802 * operation must be updating zs_minor (from -1 to the new
6806 zs->zs_minor = minor;
6808 zsprev->zs_next = zs;
6811 zs->zs_minor = minor;
6818 zfsdev_state_destroy(struct file *filp)
6822 ASSERT(MUTEX_HELD(&zfsdev_state_lock));
6823 ASSERT(filp->private_data != NULL);
6825 zs = filp->private_data;
6827 zfs_onexit_destroy(zs->zs_onexit);
6828 zfs_zevent_destroy(zs->zs_zevent);
6834 zfsdev_open(struct inode *ino, struct file *filp)
6838 mutex_enter(&zfsdev_state_lock);
6839 error = zfsdev_state_init(filp);
6840 mutex_exit(&zfsdev_state_lock);
6846 zfsdev_release(struct inode *ino, struct file *filp)
6850 mutex_enter(&zfsdev_state_lock);
6851 error = zfsdev_state_destroy(filp);
6852 mutex_exit(&zfsdev_state_lock);
6858 zfsdev_ioctl(struct file *filp, unsigned cmd, unsigned long arg)
6862 int error, rc, flag = 0;
6863 const zfs_ioc_vec_t *vec;
6864 char *saved_poolname = NULL;
6865 nvlist_t *innvl = NULL;
6866 fstrans_cookie_t cookie;
6868 vecnum = cmd - ZFS_IOC_FIRST;
6869 if (vecnum >= sizeof (zfs_ioc_vec) / sizeof (zfs_ioc_vec[0]))
6870 return (-SET_ERROR(ZFS_ERR_IOC_CMD_UNAVAIL));
6871 vec = &zfs_ioc_vec[vecnum];
6874 * The registered ioctl list may be sparse, verify that either
6875 * a normal or legacy handler are registered.
6877 if (vec->zvec_func == NULL && vec->zvec_legacy_func == NULL)
6878 return (-SET_ERROR(ZFS_ERR_IOC_CMD_UNAVAIL));
6880 zc = kmem_zalloc(sizeof (zfs_cmd_t), KM_SLEEP);
6882 error = ddi_copyin((void *)arg, zc, sizeof (zfs_cmd_t), flag);
6884 error = SET_ERROR(EFAULT);
6888 zc->zc_iflags = flag & FKIOCTL;
6889 if (zc->zc_nvlist_src_size > MAX_NVLIST_SRC_SIZE) {
6891 * Make sure the user doesn't pass in an insane value for
6892 * zc_nvlist_src_size. We have to check, since we will end
6893 * up allocating that much memory inside of get_nvlist(). This
6894 * prevents a nefarious user from allocating tons of kernel
6897 * Also, we return EINVAL instead of ENOMEM here. The reason
6898 * being that returning ENOMEM from an ioctl() has a special
6899 * connotation; that the user's size value is too small and
6900 * needs to be expanded to hold the nvlist. See
6901 * zcmd_expand_dst_nvlist() for details.
6903 error = SET_ERROR(EINVAL); /* User's size too big */
6905 } else if (zc->zc_nvlist_src_size != 0) {
6906 error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
6907 zc->zc_iflags, &innvl);
6913 * Ensure that all pool/dataset names are valid before we pass down to
6916 zc->zc_name[sizeof (zc->zc_name) - 1] = '\0';
6917 switch (vec->zvec_namecheck) {
6919 if (pool_namecheck(zc->zc_name, NULL, NULL) != 0)
6920 error = SET_ERROR(EINVAL);
6922 error = pool_status_check(zc->zc_name,
6923 vec->zvec_namecheck, vec->zvec_pool_check);
6927 if (dataset_namecheck(zc->zc_name, NULL, NULL) != 0)
6928 error = SET_ERROR(EINVAL);
6930 error = pool_status_check(zc->zc_name,
6931 vec->zvec_namecheck, vec->zvec_pool_check);
6939 * Ensure that all input pairs are valid before we pass them down
6940 * to the lower layers.
6942 * The vectored functions can use fnvlist_lookup_{type} for any
6943 * required pairs since zfs_check_input_nvpairs() confirmed that
6944 * they exist and are of the correct type.
6946 if (error == 0 && vec->zvec_func != NULL) {
6947 error = zfs_check_input_nvpairs(innvl, vec);
6953 cookie = spl_fstrans_mark();
6954 error = vec->zvec_secpolicy(zc, innvl, CRED());
6955 spl_fstrans_unmark(cookie);
6961 /* legacy ioctls can modify zc_name */
6962 saved_poolname = strdup(zc->zc_name);
6963 if (saved_poolname == NULL) {
6964 error = SET_ERROR(ENOMEM);
6967 saved_poolname[strcspn(saved_poolname, "/@#")] = '\0';
6970 if (vec->zvec_func != NULL) {
6974 nvlist_t *lognv = NULL;
6976 ASSERT(vec->zvec_legacy_func == NULL);
6979 * Add the innvl to the lognv before calling the func,
6980 * in case the func changes the innvl.
6982 if (vec->zvec_allow_log) {
6983 lognv = fnvlist_alloc();
6984 fnvlist_add_string(lognv, ZPOOL_HIST_IOCTL,
6986 if (!nvlist_empty(innvl)) {
6987 fnvlist_add_nvlist(lognv, ZPOOL_HIST_INPUT_NVL,
6992 outnvl = fnvlist_alloc();
6993 cookie = spl_fstrans_mark();
6994 error = vec->zvec_func(zc->zc_name, innvl, outnvl);
6995 spl_fstrans_unmark(cookie);
6998 * Some commands can partially execute, modify state, and still
6999 * return an error. In these cases, attempt to record what
7003 (cmd == ZFS_IOC_CHANNEL_PROGRAM && error != EINVAL)) &&
7004 vec->zvec_allow_log &&
7005 spa_open(zc->zc_name, &spa, FTAG) == 0) {
7006 if (!nvlist_empty(outnvl)) {
7007 fnvlist_add_nvlist(lognv, ZPOOL_HIST_OUTPUT_NVL,
7011 fnvlist_add_int64(lognv, ZPOOL_HIST_ERRNO,
7014 (void) spa_history_log_nvl(spa, lognv);
7015 spa_close(spa, FTAG);
7017 fnvlist_free(lognv);
7019 if (!nvlist_empty(outnvl) || zc->zc_nvlist_dst_size != 0) {
7021 if (vec->zvec_smush_outnvlist) {
7022 smusherror = nvlist_smush(outnvl,
7023 zc->zc_nvlist_dst_size);
7025 if (smusherror == 0)
7026 puterror = put_nvlist(zc, outnvl);
7032 nvlist_free(outnvl);
7034 cookie = spl_fstrans_mark();
7035 error = vec->zvec_legacy_func(zc);
7036 spl_fstrans_unmark(cookie);
7041 rc = ddi_copyout(zc, (void *)arg, sizeof (zfs_cmd_t), flag);
7042 if (error == 0 && rc != 0)
7043 error = SET_ERROR(EFAULT);
7044 if (error == 0 && vec->zvec_allow_log) {
7045 char *s = tsd_get(zfs_allow_log_key);
7048 (void) tsd_set(zfs_allow_log_key, saved_poolname);
7050 if (saved_poolname != NULL)
7051 strfree(saved_poolname);
7054 kmem_free(zc, sizeof (zfs_cmd_t));
7058 #ifdef CONFIG_COMPAT
7060 zfsdev_compat_ioctl(struct file *filp, unsigned cmd, unsigned long arg)
7062 return (zfsdev_ioctl(filp, cmd, arg));
7065 #define zfsdev_compat_ioctl NULL
7068 static const struct file_operations zfsdev_fops = {
7069 .open = zfsdev_open,
7070 .release = zfsdev_release,
7071 .unlocked_ioctl = zfsdev_ioctl,
7072 .compat_ioctl = zfsdev_compat_ioctl,
7073 .owner = THIS_MODULE,
7076 static struct miscdevice zfs_misc = {
7079 .fops = &zfsdev_fops,
7082 MODULE_ALIAS_MISCDEV(ZFS_MINOR);
7083 MODULE_ALIAS("devname:zfs");
7090 mutex_init(&zfsdev_state_lock, NULL, MUTEX_DEFAULT, NULL);
7091 zfsdev_state_list = kmem_zalloc(sizeof (zfsdev_state_t), KM_SLEEP);
7092 zfsdev_state_list->zs_minor = -1;
7094 error = misc_register(&zfs_misc);
7095 if (error == -EBUSY) {
7097 * Fallback to dynamic minor allocation in the event of a
7098 * collision with a reserved minor in linux/miscdevice.h.
7099 * In this case the kernel modules must be manually loaded.
7101 printk(KERN_INFO "ZFS: misc_register() with static minor %d "
7102 "failed %d, retrying with MISC_DYNAMIC_MINOR\n",
7105 zfs_misc.minor = MISC_DYNAMIC_MINOR;
7106 error = misc_register(&zfs_misc);
7110 printk(KERN_INFO "ZFS: misc_register() failed %d\n", error);
7118 zfsdev_state_t *zs, *zsprev = NULL;
7120 misc_deregister(&zfs_misc);
7121 mutex_destroy(&zfsdev_state_lock);
7123 for (zs = zfsdev_state_list; zs != NULL; zs = zs->zs_next) {
7125 kmem_free(zsprev, sizeof (zfsdev_state_t));
7129 kmem_free(zsprev, sizeof (zfsdev_state_t));
7133 zfs_allow_log_destroy(void *arg)
7135 char *poolname = arg;
7137 if (poolname != NULL)
7142 #define ZFS_DEBUG_STR " (DEBUG mode)"
7144 #define ZFS_DEBUG_STR ""
7152 error = -vn_set_pwd("/");
7155 "ZFS: Warning unable to set pwd to '/': %d\n", error);
7159 if ((error = -zvol_init()) != 0)
7162 spa_init(FREAD | FWRITE);
7168 if ((error = zfs_attach()) != 0)
7171 tsd_create(&zfs_fsyncer_key, NULL);
7172 tsd_create(&rrw_tsd_key, rrw_tsd_destroy);
7173 tsd_create(&zfs_allow_log_key, zfs_allow_log_destroy);
7175 printk(KERN_NOTICE "ZFS: Loaded module v%s-%s%s, "
7176 "ZFS pool version %s, ZFS filesystem version %s\n",
7177 ZFS_META_VERSION, ZFS_META_RELEASE, ZFS_DEBUG_STR,
7178 SPA_VERSION_STRING, ZPL_VERSION_STRING);
7179 #ifndef CONFIG_FS_POSIX_ACL
7180 printk(KERN_NOTICE "ZFS: Posix ACLs disabled by kernel\n");
7181 #endif /* CONFIG_FS_POSIX_ACL */
7190 printk(KERN_NOTICE "ZFS: Failed to Load ZFS Filesystem v%s-%s%s"
7191 ", rc = %d\n", ZFS_META_VERSION, ZFS_META_RELEASE,
7192 ZFS_DEBUG_STR, error);
7206 tsd_destroy(&zfs_fsyncer_key);
7207 tsd_destroy(&rrw_tsd_key);
7208 tsd_destroy(&zfs_allow_log_key);
7210 printk(KERN_NOTICE "ZFS: Unloaded module v%s-%s%s\n",
7211 ZFS_META_VERSION, ZFS_META_RELEASE, ZFS_DEBUG_STR);
7214 #if defined(_KERNEL)
7218 MODULE_DESCRIPTION("ZFS");
7219 MODULE_AUTHOR(ZFS_META_AUTHOR);
7220 MODULE_LICENSE(ZFS_META_LICENSE);
7221 MODULE_VERSION(ZFS_META_VERSION "-" ZFS_META_RELEASE);