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 * Portions Copyright 2012 Pawel Jakub Dawidek <pawel@dawidek.net>
26 * Copyright (c) 2012, Joyent, Inc. All rights reserved.
27 * Copyright 2015 Nexenta Systems, Inc. All rights reserved.
28 * Copyright (c) 2014, Joyent, Inc. All rights reserved.
29 * Copyright (c) 2011, 2015 by Delphix. All rights reserved.
30 * Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
31 * Copyright (c) 2013 Steven Hartland. All rights reserved.
32 * Copyright (c) 2016 Actifio, Inc. All rights reserved.
38 * This file handles the ioctls to /dev/zfs, used for configuring ZFS storage
39 * pools and filesystems, e.g. with /sbin/zfs and /sbin/zpool.
41 * There are two ways that we handle ioctls: the legacy way where almost
42 * all of the logic is in the ioctl callback, and the new way where most
43 * of the marshalling is handled in the common entry point, zfsdev_ioctl().
45 * Non-legacy ioctls should be registered by calling
46 * zfs_ioctl_register() from zfs_ioctl_init(). The ioctl is invoked
47 * from userland by lzc_ioctl().
49 * The registration arguments are as follows:
52 * The name of the ioctl. This is used for history logging. If the
53 * ioctl returns successfully (the callback returns 0), and allow_log
54 * is true, then a history log entry will be recorded with the input &
55 * output nvlists. The log entry can be printed with "zpool history -i".
58 * The ioctl request number, which userland will pass to ioctl(2).
59 * The ioctl numbers can change from release to release, because
60 * the caller (libzfs) must be matched to the kernel.
62 * zfs_secpolicy_func_t *secpolicy
63 * This function will be called before the zfs_ioc_func_t, to
64 * determine if this operation is permitted. It should return EPERM
65 * on failure, and 0 on success. Checks include determining if the
66 * dataset is visible in this zone, and if the user has either all
67 * zfs privileges in the zone (SYS_MOUNT), or has been granted permission
68 * to do this operation on this dataset with "zfs allow".
70 * zfs_ioc_namecheck_t namecheck
71 * This specifies what to expect in the zfs_cmd_t:zc_name -- a pool
72 * name, a dataset name, or nothing. If the name is not well-formed,
73 * the ioctl will fail and the callback will not be called.
74 * Therefore, the callback can assume that the name is well-formed
75 * (e.g. is null-terminated, doesn't have more than one '@' character,
76 * doesn't have invalid characters).
78 * zfs_ioc_poolcheck_t pool_check
79 * This specifies requirements on the pool state. If the pool does
80 * not meet them (is suspended or is readonly), the ioctl will fail
81 * and the callback will not be called. If any checks are specified
82 * (i.e. it is not POOL_CHECK_NONE), namecheck must not be NO_NAME.
83 * Multiple checks can be or-ed together (e.g. POOL_CHECK_SUSPENDED |
84 * POOL_CHECK_READONLY).
86 * boolean_t smush_outnvlist
87 * If smush_outnvlist is true, then the output is presumed to be a
88 * list of errors, and it will be "smushed" down to fit into the
89 * caller's buffer, by removing some entries and replacing them with a
90 * single "N_MORE_ERRORS" entry indicating how many were removed. See
91 * nvlist_smush() for details. If smush_outnvlist is false, and the
92 * outnvlist does not fit into the userland-provided buffer, then the
93 * ioctl will fail with ENOMEM.
95 * zfs_ioc_func_t *func
96 * The callback function that will perform the operation.
98 * The callback should return 0 on success, or an error number on
99 * failure. If the function fails, the userland ioctl will return -1,
100 * and errno will be set to the callback's return value. The callback
101 * will be called with the following arguments:
104 * The name of the pool or dataset to operate on, from
105 * zfs_cmd_t:zc_name. The 'namecheck' argument specifies the
106 * expected type (pool, dataset, or none).
109 * The input nvlist, deserialized from zfs_cmd_t:zc_nvlist_src. Or
110 * NULL if no input nvlist was provided. Changes to this nvlist are
111 * ignored. If the input nvlist could not be deserialized, the
112 * ioctl will fail and the callback will not be called.
115 * The output nvlist, initially empty. The callback can fill it in,
116 * and it will be returned to userland by serializing it into
117 * zfs_cmd_t:zc_nvlist_dst. If it is non-empty, and serialization
118 * fails (e.g. because the caller didn't supply a large enough
119 * buffer), then the overall ioctl will fail. See the
120 * 'smush_nvlist' argument above for additional behaviors.
122 * There are two typical uses of the output nvlist:
123 * - To return state, e.g. property values. In this case,
124 * smush_outnvlist should be false. If the buffer was not large
125 * enough, the caller will reallocate a larger buffer and try
128 * - To return multiple errors from an ioctl which makes on-disk
129 * changes. In this case, smush_outnvlist should be true.
130 * Ioctls which make on-disk modifications should generally not
131 * use the outnvl if they succeed, because the caller can not
132 * distinguish between the operation failing, and
133 * deserialization failing.
136 #include <sys/types.h>
137 #include <sys/param.h>
138 #include <sys/errno.h>
141 #include <sys/modctl.h>
142 #include <sys/open.h>
143 #include <sys/file.h>
144 #include <sys/kmem.h>
145 #include <sys/conf.h>
146 #include <sys/cmn_err.h>
147 #include <sys/stat.h>
148 #include <sys/zfs_ioctl.h>
149 #include <sys/zfs_vfsops.h>
150 #include <sys/zfs_znode.h>
153 #include <sys/spa_impl.h>
154 #include <sys/vdev.h>
155 #include <sys/priv_impl.h>
157 #include <sys/dsl_dir.h>
158 #include <sys/dsl_dataset.h>
159 #include <sys/dsl_prop.h>
160 #include <sys/dsl_deleg.h>
161 #include <sys/dmu_objset.h>
162 #include <sys/dmu_impl.h>
163 #include <sys/dmu_tx.h>
165 #include <sys/sunddi.h>
166 #include <sys/sunldi.h>
167 #include <sys/policy.h>
168 #include <sys/zone.h>
169 #include <sys/nvpair.h>
170 #include <sys/pathname.h>
171 #include <sys/mount.h>
173 #include <sys/fs/zfs.h>
174 #include <sys/zfs_ctldir.h>
175 #include <sys/zfs_dir.h>
176 #include <sys/zfs_onexit.h>
177 #include <sys/zvol.h>
178 #include <sys/dsl_scan.h>
179 #include <sharefs/share.h>
180 #include <sys/fm/util.h>
182 #include <sys/dmu_send.h>
183 #include <sys/dsl_destroy.h>
184 #include <sys/dsl_bookmark.h>
185 #include <sys/dsl_userhold.h>
186 #include <sys/zfeature.h>
188 #include <linux/miscdevice.h>
189 #include <linux/slab.h>
191 #include "zfs_namecheck.h"
192 #include "zfs_prop.h"
193 #include "zfs_deleg.h"
194 #include "zfs_comutil.h"
197 * Limit maximum nvlist size. We don't want users passing in insane values
198 * for zc->zc_nvlist_src_size, since we will need to allocate that much memory.
200 #define MAX_NVLIST_SRC_SIZE KMALLOC_MAX_SIZE
202 kmutex_t zfsdev_state_lock
;
203 zfsdev_state_t
*zfsdev_state_list
;
205 extern void zfs_init(void);
206 extern void zfs_fini(void);
208 uint_t zfs_fsyncer_key
;
209 extern uint_t rrw_tsd_key
;
210 static uint_t zfs_allow_log_key
;
212 typedef int zfs_ioc_legacy_func_t(zfs_cmd_t
*);
213 typedef int zfs_ioc_func_t(const char *, nvlist_t
*, nvlist_t
*);
214 typedef int zfs_secpolicy_func_t(zfs_cmd_t
*, nvlist_t
*, cred_t
*);
220 } zfs_ioc_namecheck_t
;
223 POOL_CHECK_NONE
= 1 << 0,
224 POOL_CHECK_SUSPENDED
= 1 << 1,
225 POOL_CHECK_READONLY
= 1 << 2,
226 } zfs_ioc_poolcheck_t
;
228 typedef struct zfs_ioc_vec
{
229 zfs_ioc_legacy_func_t
*zvec_legacy_func
;
230 zfs_ioc_func_t
*zvec_func
;
231 zfs_secpolicy_func_t
*zvec_secpolicy
;
232 zfs_ioc_namecheck_t zvec_namecheck
;
233 boolean_t zvec_allow_log
;
234 zfs_ioc_poolcheck_t zvec_pool_check
;
235 boolean_t zvec_smush_outnvlist
;
236 const char *zvec_name
;
239 /* This array is indexed by zfs_userquota_prop_t */
240 static const char *userquota_perms
[] = {
241 ZFS_DELEG_PERM_USERUSED
,
242 ZFS_DELEG_PERM_USERQUOTA
,
243 ZFS_DELEG_PERM_GROUPUSED
,
244 ZFS_DELEG_PERM_GROUPQUOTA
,
247 static int zfs_ioc_userspace_upgrade(zfs_cmd_t
*zc
);
248 static int zfs_check_settable(const char *name
, nvpair_t
*property
,
250 static int zfs_check_clearable(char *dataset
, nvlist_t
*props
,
252 static int zfs_fill_zplprops_root(uint64_t, nvlist_t
*, nvlist_t
*,
254 int zfs_set_prop_nvlist(const char *, zprop_source_t
, nvlist_t
*, nvlist_t
*);
255 static int get_nvlist(uint64_t nvl
, uint64_t size
, int iflag
, nvlist_t
**nvp
);
258 history_str_free(char *buf
)
260 kmem_free(buf
, HIS_MAX_RECORD_LEN
);
264 history_str_get(zfs_cmd_t
*zc
)
268 if (zc
->zc_history
== 0)
271 buf
= kmem_alloc(HIS_MAX_RECORD_LEN
, KM_SLEEP
);
272 if (copyinstr((void *)(uintptr_t)zc
->zc_history
,
273 buf
, HIS_MAX_RECORD_LEN
, NULL
) != 0) {
274 history_str_free(buf
);
278 buf
[HIS_MAX_RECORD_LEN
-1] = '\0';
284 * Check to see if the named dataset is currently defined as bootable
287 zfs_is_bootfs(const char *name
)
291 if (dmu_objset_hold(name
, FTAG
, &os
) == 0) {
293 ret
= (dmu_objset_id(os
) == spa_bootfs(dmu_objset_spa(os
)));
294 dmu_objset_rele(os
, FTAG
);
301 * Return non-zero if the spa version is less than requested version.
304 zfs_earlier_version(const char *name
, int version
)
308 if (spa_open(name
, &spa
, FTAG
) == 0) {
309 if (spa_version(spa
) < version
) {
310 spa_close(spa
, FTAG
);
313 spa_close(spa
, FTAG
);
319 * Return TRUE if the ZPL version is less than requested version.
322 zpl_earlier_version(const char *name
, int version
)
325 boolean_t rc
= B_TRUE
;
327 if (dmu_objset_hold(name
, FTAG
, &os
) == 0) {
330 if (dmu_objset_type(os
) != DMU_OST_ZFS
) {
331 dmu_objset_rele(os
, FTAG
);
334 /* XXX reading from non-owned objset */
335 if (zfs_get_zplprop(os
, ZFS_PROP_VERSION
, &zplversion
) == 0)
336 rc
= zplversion
< version
;
337 dmu_objset_rele(os
, FTAG
);
343 zfs_log_history(zfs_cmd_t
*zc
)
348 if ((buf
= history_str_get(zc
)) == NULL
)
351 if (spa_open(zc
->zc_name
, &spa
, FTAG
) == 0) {
352 if (spa_version(spa
) >= SPA_VERSION_ZPOOL_HISTORY
)
353 (void) spa_history_log(spa
, buf
);
354 spa_close(spa
, FTAG
);
356 history_str_free(buf
);
360 * Policy for top-level read operations (list pools). Requires no privileges,
361 * and can be used in the local zone, as there is no associated dataset.
365 zfs_secpolicy_none(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
371 * Policy for dataset read operations (list children, get statistics). Requires
372 * no privileges, but must be visible in the local zone.
376 zfs_secpolicy_read(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
378 if (INGLOBALZONE(curproc
) ||
379 zone_dataset_visible(zc
->zc_name
, NULL
))
382 return (SET_ERROR(ENOENT
));
386 zfs_dozonecheck_impl(const char *dataset
, uint64_t zoned
, cred_t
*cr
)
391 * The dataset must be visible by this zone -- check this first
392 * so they don't see EPERM on something they shouldn't know about.
394 if (!INGLOBALZONE(curproc
) &&
395 !zone_dataset_visible(dataset
, &writable
))
396 return (SET_ERROR(ENOENT
));
398 if (INGLOBALZONE(curproc
)) {
400 * If the fs is zoned, only root can access it from the
403 if (secpolicy_zfs(cr
) && zoned
)
404 return (SET_ERROR(EPERM
));
407 * If we are in a local zone, the 'zoned' property must be set.
410 return (SET_ERROR(EPERM
));
412 /* must be writable by this zone */
414 return (SET_ERROR(EPERM
));
420 zfs_dozonecheck(const char *dataset
, cred_t
*cr
)
424 if (dsl_prop_get_integer(dataset
, "zoned", &zoned
, NULL
))
425 return (SET_ERROR(ENOENT
));
427 return (zfs_dozonecheck_impl(dataset
, zoned
, cr
));
431 zfs_dozonecheck_ds(const char *dataset
, dsl_dataset_t
*ds
, cred_t
*cr
)
435 if (dsl_prop_get_int_ds(ds
, "zoned", &zoned
))
436 return (SET_ERROR(ENOENT
));
438 return (zfs_dozonecheck_impl(dataset
, zoned
, cr
));
442 zfs_secpolicy_write_perms_ds(const char *name
, dsl_dataset_t
*ds
,
443 const char *perm
, cred_t
*cr
)
447 error
= zfs_dozonecheck_ds(name
, ds
, cr
);
449 error
= secpolicy_zfs(cr
);
451 error
= dsl_deleg_access_impl(ds
, perm
, cr
);
457 zfs_secpolicy_write_perms(const char *name
, const char *perm
, cred_t
*cr
)
463 error
= dsl_pool_hold(name
, FTAG
, &dp
);
467 error
= dsl_dataset_hold(dp
, name
, FTAG
, &ds
);
469 dsl_pool_rele(dp
, FTAG
);
473 error
= zfs_secpolicy_write_perms_ds(name
, ds
, perm
, cr
);
475 dsl_dataset_rele(ds
, FTAG
);
476 dsl_pool_rele(dp
, FTAG
);
481 * Policy for setting the security label property.
483 * Returns 0 for success, non-zero for access and other errors.
486 zfs_set_slabel_policy(const char *name
, char *strval
, cred_t
*cr
)
489 char ds_hexsl
[MAXNAMELEN
];
490 bslabel_t ds_sl
, new_sl
;
491 boolean_t new_default
= FALSE
;
493 int needed_priv
= -1;
496 /* First get the existing dataset label. */
497 error
= dsl_prop_get(name
, zfs_prop_to_name(ZFS_PROP_MLSLABEL
),
498 1, sizeof (ds_hexsl
), &ds_hexsl
, NULL
);
500 return (SET_ERROR(EPERM
));
502 if (strcasecmp(strval
, ZFS_MLSLABEL_DEFAULT
) == 0)
505 /* The label must be translatable */
506 if (!new_default
&& (hexstr_to_label(strval
, &new_sl
) != 0))
507 return (SET_ERROR(EINVAL
));
510 * In a non-global zone, disallow attempts to set a label that
511 * doesn't match that of the zone; otherwise no other checks
514 if (!INGLOBALZONE(curproc
)) {
515 if (new_default
|| !blequal(&new_sl
, CR_SL(CRED())))
516 return (SET_ERROR(EPERM
));
521 * For global-zone datasets (i.e., those whose zoned property is
522 * "off", verify that the specified new label is valid for the
525 if (dsl_prop_get_integer(name
,
526 zfs_prop_to_name(ZFS_PROP_ZONED
), &zoned
, NULL
))
527 return (SET_ERROR(EPERM
));
529 if (zfs_check_global_label(name
, strval
) != 0)
530 return (SET_ERROR(EPERM
));
534 * If the existing dataset label is nondefault, check if the
535 * dataset is mounted (label cannot be changed while mounted).
536 * Get the zfs_sb_t; if there isn't one, then the dataset isn't
537 * mounted (or isn't a dataset, doesn't exist, ...).
539 if (strcasecmp(ds_hexsl
, ZFS_MLSLABEL_DEFAULT
) != 0) {
541 static char *setsl_tag
= "setsl_tag";
544 * Try to own the dataset; abort if there is any error,
545 * (e.g., already mounted, in use, or other error).
547 error
= dmu_objset_own(name
, DMU_OST_ZFS
, B_TRUE
,
550 return (SET_ERROR(EPERM
));
552 dmu_objset_disown(os
, setsl_tag
);
555 needed_priv
= PRIV_FILE_DOWNGRADE_SL
;
559 if (hexstr_to_label(strval
, &new_sl
) != 0)
560 return (SET_ERROR(EPERM
));
562 if (blstrictdom(&ds_sl
, &new_sl
))
563 needed_priv
= PRIV_FILE_DOWNGRADE_SL
;
564 else if (blstrictdom(&new_sl
, &ds_sl
))
565 needed_priv
= PRIV_FILE_UPGRADE_SL
;
567 /* dataset currently has a default label */
569 needed_priv
= PRIV_FILE_UPGRADE_SL
;
573 if (needed_priv
!= -1)
574 return (PRIV_POLICY(cr
, needed_priv
, B_FALSE
, EPERM
, NULL
));
578 #endif /* HAVE_MLSLABEL */
582 zfs_secpolicy_setprop(const char *dsname
, zfs_prop_t prop
, nvpair_t
*propval
,
588 * Check permissions for special properties.
595 * Disallow setting of 'zoned' from within a local zone.
597 if (!INGLOBALZONE(curproc
))
598 return (SET_ERROR(EPERM
));
602 case ZFS_PROP_FILESYSTEM_LIMIT
:
603 case ZFS_PROP_SNAPSHOT_LIMIT
:
604 if (!INGLOBALZONE(curproc
)) {
606 char setpoint
[MAXNAMELEN
];
608 * Unprivileged users are allowed to modify the
609 * limit on things *under* (ie. contained by)
610 * the thing they own.
612 if (dsl_prop_get_integer(dsname
, "zoned", &zoned
,
614 return (SET_ERROR(EPERM
));
615 if (!zoned
|| strlen(dsname
) <= strlen(setpoint
))
616 return (SET_ERROR(EPERM
));
620 case ZFS_PROP_MLSLABEL
:
621 if (!is_system_labeled())
622 return (SET_ERROR(EPERM
));
624 if (nvpair_value_string(propval
, &strval
) == 0) {
627 err
= zfs_set_slabel_policy(dsname
, strval
, CRED());
634 return (zfs_secpolicy_write_perms(dsname
, zfs_prop_to_name(prop
), cr
));
639 zfs_secpolicy_set_fsacl(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
643 error
= zfs_dozonecheck(zc
->zc_name
, cr
);
648 * permission to set permissions will be evaluated later in
649 * dsl_deleg_can_allow()
656 zfs_secpolicy_rollback(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
658 return (zfs_secpolicy_write_perms(zc
->zc_name
,
659 ZFS_DELEG_PERM_ROLLBACK
, cr
));
664 zfs_secpolicy_send(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
672 * Generate the current snapshot name from the given objsetid, then
673 * use that name for the secpolicy/zone checks.
675 cp
= strchr(zc
->zc_name
, '@');
677 return (SET_ERROR(EINVAL
));
678 error
= dsl_pool_hold(zc
->zc_name
, FTAG
, &dp
);
682 error
= dsl_dataset_hold_obj(dp
, zc
->zc_sendobj
, FTAG
, &ds
);
684 dsl_pool_rele(dp
, FTAG
);
688 dsl_dataset_name(ds
, zc
->zc_name
);
690 error
= zfs_secpolicy_write_perms_ds(zc
->zc_name
, ds
,
691 ZFS_DELEG_PERM_SEND
, cr
);
692 dsl_dataset_rele(ds
, FTAG
);
693 dsl_pool_rele(dp
, FTAG
);
700 zfs_secpolicy_send_new(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
702 return (zfs_secpolicy_write_perms(zc
->zc_name
,
703 ZFS_DELEG_PERM_SEND
, cr
));
706 #ifdef HAVE_SMB_SHARE
709 zfs_secpolicy_deleg_share(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
714 if ((error
= lookupname(zc
->zc_value
, UIO_SYSSPACE
,
715 NO_FOLLOW
, NULL
, &vp
)) != 0)
718 /* Now make sure mntpnt and dataset are ZFS */
720 if (vp
->v_vfsp
->vfs_fstype
!= zfsfstype
||
721 (strcmp((char *)refstr_value(vp
->v_vfsp
->vfs_resource
),
722 zc
->zc_name
) != 0)) {
724 return (SET_ERROR(EPERM
));
728 return (dsl_deleg_access(zc
->zc_name
,
729 ZFS_DELEG_PERM_SHARE
, cr
));
731 #endif /* HAVE_SMB_SHARE */
734 zfs_secpolicy_share(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
736 #ifdef HAVE_SMB_SHARE
737 if (!INGLOBALZONE(curproc
))
738 return (SET_ERROR(EPERM
));
740 if (secpolicy_nfs(cr
) == 0) {
743 return (zfs_secpolicy_deleg_share(zc
, innvl
, cr
));
746 return (SET_ERROR(ENOTSUP
));
747 #endif /* HAVE_SMB_SHARE */
751 zfs_secpolicy_smb_acl(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
753 #ifdef HAVE_SMB_SHARE
754 if (!INGLOBALZONE(curproc
))
755 return (SET_ERROR(EPERM
));
757 if (secpolicy_smb(cr
) == 0) {
760 return (zfs_secpolicy_deleg_share(zc
, innvl
, cr
));
763 return (SET_ERROR(ENOTSUP
));
764 #endif /* HAVE_SMB_SHARE */
768 zfs_get_parent(const char *datasetname
, char *parent
, int parentsize
)
773 * Remove the @bla or /bla from the end of the name to get the parent.
775 (void) strncpy(parent
, datasetname
, parentsize
);
776 cp
= strrchr(parent
, '@');
780 cp
= strrchr(parent
, '/');
782 return (SET_ERROR(ENOENT
));
790 zfs_secpolicy_destroy_perms(const char *name
, cred_t
*cr
)
794 if ((error
= zfs_secpolicy_write_perms(name
,
795 ZFS_DELEG_PERM_MOUNT
, cr
)) != 0)
798 return (zfs_secpolicy_write_perms(name
, ZFS_DELEG_PERM_DESTROY
, cr
));
803 zfs_secpolicy_destroy(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
805 return (zfs_secpolicy_destroy_perms(zc
->zc_name
, cr
));
809 * Destroying snapshots with delegated permissions requires
810 * descendant mount and destroy permissions.
814 zfs_secpolicy_destroy_snaps(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
817 nvpair_t
*pair
, *nextpair
;
820 if (nvlist_lookup_nvlist(innvl
, "snaps", &snaps
) != 0)
821 return (SET_ERROR(EINVAL
));
822 for (pair
= nvlist_next_nvpair(snaps
, NULL
); pair
!= NULL
;
824 nextpair
= nvlist_next_nvpair(snaps
, pair
);
825 error
= zfs_secpolicy_destroy_perms(nvpair_name(pair
), cr
);
826 if (error
== ENOENT
) {
828 * Ignore any snapshots that don't exist (we consider
829 * them "already destroyed"). Remove the name from the
830 * nvl here in case the snapshot is created between
831 * now and when we try to destroy it (in which case
832 * we don't want to destroy it since we haven't
833 * checked for permission).
835 fnvlist_remove_nvpair(snaps
, pair
);
846 zfs_secpolicy_rename_perms(const char *from
, const char *to
, cred_t
*cr
)
848 char parentname
[MAXNAMELEN
];
851 if ((error
= zfs_secpolicy_write_perms(from
,
852 ZFS_DELEG_PERM_RENAME
, cr
)) != 0)
855 if ((error
= zfs_secpolicy_write_perms(from
,
856 ZFS_DELEG_PERM_MOUNT
, cr
)) != 0)
859 if ((error
= zfs_get_parent(to
, parentname
,
860 sizeof (parentname
))) != 0)
863 if ((error
= zfs_secpolicy_write_perms(parentname
,
864 ZFS_DELEG_PERM_CREATE
, cr
)) != 0)
867 if ((error
= zfs_secpolicy_write_perms(parentname
,
868 ZFS_DELEG_PERM_MOUNT
, cr
)) != 0)
876 zfs_secpolicy_rename(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
878 return (zfs_secpolicy_rename_perms(zc
->zc_name
, zc
->zc_value
, cr
));
883 zfs_secpolicy_promote(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
886 dsl_dataset_t
*clone
;
889 error
= zfs_secpolicy_write_perms(zc
->zc_name
,
890 ZFS_DELEG_PERM_PROMOTE
, cr
);
894 error
= dsl_pool_hold(zc
->zc_name
, FTAG
, &dp
);
898 error
= dsl_dataset_hold(dp
, zc
->zc_name
, FTAG
, &clone
);
901 char parentname
[MAXNAMELEN
];
902 dsl_dataset_t
*origin
= NULL
;
906 error
= dsl_dataset_hold_obj(dd
->dd_pool
,
907 dsl_dir_phys(dd
)->dd_origin_obj
, FTAG
, &origin
);
909 dsl_dataset_rele(clone
, FTAG
);
910 dsl_pool_rele(dp
, FTAG
);
914 error
= zfs_secpolicy_write_perms_ds(zc
->zc_name
, clone
,
915 ZFS_DELEG_PERM_MOUNT
, cr
);
917 dsl_dataset_name(origin
, parentname
);
919 error
= zfs_secpolicy_write_perms_ds(parentname
, origin
,
920 ZFS_DELEG_PERM_PROMOTE
, cr
);
922 dsl_dataset_rele(clone
, FTAG
);
923 dsl_dataset_rele(origin
, FTAG
);
925 dsl_pool_rele(dp
, FTAG
);
931 zfs_secpolicy_recv(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
935 if ((error
= zfs_secpolicy_write_perms(zc
->zc_name
,
936 ZFS_DELEG_PERM_RECEIVE
, cr
)) != 0)
939 if ((error
= zfs_secpolicy_write_perms(zc
->zc_name
,
940 ZFS_DELEG_PERM_MOUNT
, cr
)) != 0)
943 return (zfs_secpolicy_write_perms(zc
->zc_name
,
944 ZFS_DELEG_PERM_CREATE
, cr
));
948 zfs_secpolicy_snapshot_perms(const char *name
, cred_t
*cr
)
950 return (zfs_secpolicy_write_perms(name
,
951 ZFS_DELEG_PERM_SNAPSHOT
, cr
));
955 * Check for permission to create each snapshot in the nvlist.
959 zfs_secpolicy_snapshot(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
965 if (nvlist_lookup_nvlist(innvl
, "snaps", &snaps
) != 0)
966 return (SET_ERROR(EINVAL
));
967 for (pair
= nvlist_next_nvpair(snaps
, NULL
); pair
!= NULL
;
968 pair
= nvlist_next_nvpair(snaps
, pair
)) {
969 char *name
= nvpair_name(pair
);
970 char *atp
= strchr(name
, '@');
973 error
= SET_ERROR(EINVAL
);
977 error
= zfs_secpolicy_snapshot_perms(name
, cr
);
986 * Check for permission to create each snapshot in the nvlist.
990 zfs_secpolicy_bookmark(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
995 for (pair
= nvlist_next_nvpair(innvl
, NULL
);
996 pair
!= NULL
; pair
= nvlist_next_nvpair(innvl
, pair
)) {
997 char *name
= nvpair_name(pair
);
998 char *hashp
= strchr(name
, '#');
1000 if (hashp
== NULL
) {
1001 error
= SET_ERROR(EINVAL
);
1005 error
= zfs_secpolicy_write_perms(name
,
1006 ZFS_DELEG_PERM_BOOKMARK
, cr
);
1016 zfs_secpolicy_destroy_bookmarks(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1018 nvpair_t
*pair
, *nextpair
;
1021 for (pair
= nvlist_next_nvpair(innvl
, NULL
); pair
!= NULL
;
1023 char *name
= nvpair_name(pair
);
1024 char *hashp
= strchr(name
, '#');
1025 nextpair
= nvlist_next_nvpair(innvl
, pair
);
1027 if (hashp
== NULL
) {
1028 error
= SET_ERROR(EINVAL
);
1033 error
= zfs_secpolicy_write_perms(name
,
1034 ZFS_DELEG_PERM_DESTROY
, cr
);
1036 if (error
== ENOENT
) {
1038 * Ignore any filesystems that don't exist (we consider
1039 * their bookmarks "already destroyed"). Remove
1040 * the name from the nvl here in case the filesystem
1041 * is created between now and when we try to destroy
1042 * the bookmark (in which case we don't want to
1043 * destroy it since we haven't checked for permission).
1045 fnvlist_remove_nvpair(innvl
, pair
);
1057 zfs_secpolicy_log_history(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1060 * Even root must have a proper TSD so that we know what pool
1063 if (tsd_get(zfs_allow_log_key
) == NULL
)
1064 return (SET_ERROR(EPERM
));
1069 zfs_secpolicy_create_clone(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1071 char parentname
[MAXNAMELEN
];
1075 if ((error
= zfs_get_parent(zc
->zc_name
, parentname
,
1076 sizeof (parentname
))) != 0)
1079 if (nvlist_lookup_string(innvl
, "origin", &origin
) == 0 &&
1080 (error
= zfs_secpolicy_write_perms(origin
,
1081 ZFS_DELEG_PERM_CLONE
, cr
)) != 0)
1084 if ((error
= zfs_secpolicy_write_perms(parentname
,
1085 ZFS_DELEG_PERM_CREATE
, cr
)) != 0)
1088 return (zfs_secpolicy_write_perms(parentname
,
1089 ZFS_DELEG_PERM_MOUNT
, cr
));
1093 * Policy for pool operations - create/destroy pools, add vdevs, etc. Requires
1094 * SYS_CONFIG privilege, which is not available in a local zone.
1098 zfs_secpolicy_config(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1100 if (secpolicy_sys_config(cr
, B_FALSE
) != 0)
1101 return (SET_ERROR(EPERM
));
1107 * Policy for object to name lookups.
1111 zfs_secpolicy_diff(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1115 if ((error
= secpolicy_sys_config(cr
, B_FALSE
)) == 0)
1118 error
= zfs_secpolicy_write_perms(zc
->zc_name
, ZFS_DELEG_PERM_DIFF
, cr
);
1123 * Policy for fault injection. Requires all privileges.
1127 zfs_secpolicy_inject(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1129 return (secpolicy_zinject(cr
));
1134 zfs_secpolicy_inherit_prop(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1136 zfs_prop_t prop
= zfs_name_to_prop(zc
->zc_value
);
1138 if (prop
== ZPROP_INVAL
) {
1139 if (!zfs_prop_user(zc
->zc_value
))
1140 return (SET_ERROR(EINVAL
));
1141 return (zfs_secpolicy_write_perms(zc
->zc_name
,
1142 ZFS_DELEG_PERM_USERPROP
, cr
));
1144 return (zfs_secpolicy_setprop(zc
->zc_name
, prop
,
1150 zfs_secpolicy_userspace_one(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1152 int err
= zfs_secpolicy_read(zc
, innvl
, cr
);
1156 if (zc
->zc_objset_type
>= ZFS_NUM_USERQUOTA_PROPS
)
1157 return (SET_ERROR(EINVAL
));
1159 if (zc
->zc_value
[0] == 0) {
1161 * They are asking about a posix uid/gid. If it's
1162 * themself, allow it.
1164 if (zc
->zc_objset_type
== ZFS_PROP_USERUSED
||
1165 zc
->zc_objset_type
== ZFS_PROP_USERQUOTA
) {
1166 if (zc
->zc_guid
== crgetuid(cr
))
1169 if (groupmember(zc
->zc_guid
, cr
))
1174 return (zfs_secpolicy_write_perms(zc
->zc_name
,
1175 userquota_perms
[zc
->zc_objset_type
], cr
));
1179 zfs_secpolicy_userspace_many(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1181 int err
= zfs_secpolicy_read(zc
, innvl
, cr
);
1185 if (zc
->zc_objset_type
>= ZFS_NUM_USERQUOTA_PROPS
)
1186 return (SET_ERROR(EINVAL
));
1188 return (zfs_secpolicy_write_perms(zc
->zc_name
,
1189 userquota_perms
[zc
->zc_objset_type
], cr
));
1194 zfs_secpolicy_userspace_upgrade(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1196 return (zfs_secpolicy_setprop(zc
->zc_name
, ZFS_PROP_VERSION
,
1202 zfs_secpolicy_hold(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1208 error
= nvlist_lookup_nvlist(innvl
, "holds", &holds
);
1210 return (SET_ERROR(EINVAL
));
1212 for (pair
= nvlist_next_nvpair(holds
, NULL
); pair
!= NULL
;
1213 pair
= nvlist_next_nvpair(holds
, pair
)) {
1214 char fsname
[MAXNAMELEN
];
1215 error
= dmu_fsname(nvpair_name(pair
), fsname
);
1218 error
= zfs_secpolicy_write_perms(fsname
,
1219 ZFS_DELEG_PERM_HOLD
, cr
);
1228 zfs_secpolicy_release(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1233 for (pair
= nvlist_next_nvpair(innvl
, NULL
); pair
!= NULL
;
1234 pair
= nvlist_next_nvpair(innvl
, pair
)) {
1235 char fsname
[MAXNAMELEN
];
1236 error
= dmu_fsname(nvpair_name(pair
), fsname
);
1239 error
= zfs_secpolicy_write_perms(fsname
,
1240 ZFS_DELEG_PERM_RELEASE
, cr
);
1248 * Policy for allowing temporary snapshots to be taken or released
1251 zfs_secpolicy_tmp_snapshot(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1254 * A temporary snapshot is the same as a snapshot,
1255 * hold, destroy and release all rolled into one.
1256 * Delegated diff alone is sufficient that we allow this.
1260 if ((error
= zfs_secpolicy_write_perms(zc
->zc_name
,
1261 ZFS_DELEG_PERM_DIFF
, cr
)) == 0)
1264 error
= zfs_secpolicy_snapshot_perms(zc
->zc_name
, cr
);
1266 error
= zfs_secpolicy_hold(zc
, innvl
, cr
);
1268 error
= zfs_secpolicy_release(zc
, innvl
, cr
);
1270 error
= zfs_secpolicy_destroy(zc
, innvl
, cr
);
1275 * Returns the nvlist as specified by the user in the zfs_cmd_t.
1278 get_nvlist(uint64_t nvl
, uint64_t size
, int iflag
, nvlist_t
**nvp
)
1282 nvlist_t
*list
= NULL
;
1285 * Read in and unpack the user-supplied nvlist.
1288 return (SET_ERROR(EINVAL
));
1290 packed
= vmem_alloc(size
, KM_SLEEP
);
1292 if ((error
= ddi_copyin((void *)(uintptr_t)nvl
, packed
, size
,
1294 vmem_free(packed
, size
);
1295 return (SET_ERROR(EFAULT
));
1298 if ((error
= nvlist_unpack(packed
, size
, &list
, 0)) != 0) {
1299 vmem_free(packed
, size
);
1303 vmem_free(packed
, size
);
1310 * Reduce the size of this nvlist until it can be serialized in 'max' bytes.
1311 * Entries will be removed from the end of the nvlist, and one int32 entry
1312 * named "N_MORE_ERRORS" will be added indicating how many entries were
1316 nvlist_smush(nvlist_t
*errors
, size_t max
)
1320 size
= fnvlist_size(errors
);
1323 nvpair_t
*more_errors
;
1327 return (SET_ERROR(ENOMEM
));
1329 fnvlist_add_int32(errors
, ZPROP_N_MORE_ERRORS
, 0);
1330 more_errors
= nvlist_prev_nvpair(errors
, NULL
);
1333 nvpair_t
*pair
= nvlist_prev_nvpair(errors
,
1335 fnvlist_remove_nvpair(errors
, pair
);
1337 size
= fnvlist_size(errors
);
1338 } while (size
> max
);
1340 fnvlist_remove_nvpair(errors
, more_errors
);
1341 fnvlist_add_int32(errors
, ZPROP_N_MORE_ERRORS
, n
);
1342 ASSERT3U(fnvlist_size(errors
), <=, max
);
1349 put_nvlist(zfs_cmd_t
*zc
, nvlist_t
*nvl
)
1351 char *packed
= NULL
;
1355 size
= fnvlist_size(nvl
);
1357 if (size
> zc
->zc_nvlist_dst_size
) {
1358 error
= SET_ERROR(ENOMEM
);
1360 packed
= fnvlist_pack(nvl
, &size
);
1361 if (ddi_copyout(packed
, (void *)(uintptr_t)zc
->zc_nvlist_dst
,
1362 size
, zc
->zc_iflags
) != 0)
1363 error
= SET_ERROR(EFAULT
);
1364 fnvlist_pack_free(packed
, size
);
1367 zc
->zc_nvlist_dst_size
= size
;
1368 zc
->zc_nvlist_dst_filled
= B_TRUE
;
1373 get_zfs_sb(const char *dsname
, zfs_sb_t
**zsbp
)
1378 error
= dmu_objset_hold(dsname
, FTAG
, &os
);
1381 if (dmu_objset_type(os
) != DMU_OST_ZFS
) {
1382 dmu_objset_rele(os
, FTAG
);
1383 return (SET_ERROR(EINVAL
));
1386 mutex_enter(&os
->os_user_ptr_lock
);
1387 *zsbp
= dmu_objset_get_user(os
);
1388 if (*zsbp
&& (*zsbp
)->z_sb
) {
1389 atomic_inc(&((*zsbp
)->z_sb
->s_active
));
1391 error
= SET_ERROR(ESRCH
);
1393 mutex_exit(&os
->os_user_ptr_lock
);
1394 dmu_objset_rele(os
, FTAG
);
1399 * Find a zfs_sb_t for a mounted filesystem, or create our own, in which
1400 * case its z_sb will be NULL, and it will be opened as the owner.
1401 * If 'writer' is set, the z_teardown_lock will be held for RW_WRITER,
1402 * which prevents all inode ops from running.
1405 zfs_sb_hold(const char *name
, void *tag
, zfs_sb_t
**zsbp
, boolean_t writer
)
1409 if (get_zfs_sb(name
, zsbp
) != 0)
1410 error
= zfs_sb_create(name
, NULL
, zsbp
);
1412 rrm_enter(&(*zsbp
)->z_teardown_lock
, (writer
) ? RW_WRITER
:
1414 if ((*zsbp
)->z_unmounted
) {
1416 * XXX we could probably try again, since the unmounting
1417 * thread should be just about to disassociate the
1418 * objset from the zsb.
1420 rrm_exit(&(*zsbp
)->z_teardown_lock
, tag
);
1421 return (SET_ERROR(EBUSY
));
1428 zfs_sb_rele(zfs_sb_t
*zsb
, void *tag
)
1430 rrm_exit(&zsb
->z_teardown_lock
, tag
);
1433 deactivate_super(zsb
->z_sb
);
1435 dmu_objset_disown(zsb
->z_os
, zsb
);
1441 zfs_ioc_pool_create(zfs_cmd_t
*zc
)
1444 nvlist_t
*config
, *props
= NULL
;
1445 nvlist_t
*rootprops
= NULL
;
1446 nvlist_t
*zplprops
= NULL
;
1448 if ((error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1449 zc
->zc_iflags
, &config
)))
1452 if (zc
->zc_nvlist_src_size
!= 0 && (error
=
1453 get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
1454 zc
->zc_iflags
, &props
))) {
1455 nvlist_free(config
);
1460 nvlist_t
*nvl
= NULL
;
1461 uint64_t version
= SPA_VERSION
;
1463 (void) nvlist_lookup_uint64(props
,
1464 zpool_prop_to_name(ZPOOL_PROP_VERSION
), &version
);
1465 if (!SPA_VERSION_IS_SUPPORTED(version
)) {
1466 error
= SET_ERROR(EINVAL
);
1467 goto pool_props_bad
;
1469 (void) nvlist_lookup_nvlist(props
, ZPOOL_ROOTFS_PROPS
, &nvl
);
1471 error
= nvlist_dup(nvl
, &rootprops
, KM_SLEEP
);
1473 nvlist_free(config
);
1477 (void) nvlist_remove_all(props
, ZPOOL_ROOTFS_PROPS
);
1479 VERIFY(nvlist_alloc(&zplprops
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
1480 error
= zfs_fill_zplprops_root(version
, rootprops
,
1483 goto pool_props_bad
;
1486 error
= spa_create(zc
->zc_name
, config
, props
, zplprops
);
1489 * Set the remaining root properties
1491 if (!error
&& (error
= zfs_set_prop_nvlist(zc
->zc_name
,
1492 ZPROP_SRC_LOCAL
, rootprops
, NULL
)) != 0)
1493 (void) spa_destroy(zc
->zc_name
);
1496 nvlist_free(rootprops
);
1497 nvlist_free(zplprops
);
1498 nvlist_free(config
);
1505 zfs_ioc_pool_destroy(zfs_cmd_t
*zc
)
1508 zfs_log_history(zc
);
1509 error
= spa_destroy(zc
->zc_name
);
1515 zfs_ioc_pool_import(zfs_cmd_t
*zc
)
1517 nvlist_t
*config
, *props
= NULL
;
1521 if ((error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1522 zc
->zc_iflags
, &config
)) != 0)
1525 if (zc
->zc_nvlist_src_size
!= 0 && (error
=
1526 get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
1527 zc
->zc_iflags
, &props
))) {
1528 nvlist_free(config
);
1532 if (nvlist_lookup_uint64(config
, ZPOOL_CONFIG_POOL_GUID
, &guid
) != 0 ||
1533 guid
!= zc
->zc_guid
)
1534 error
= SET_ERROR(EINVAL
);
1536 error
= spa_import(zc
->zc_name
, config
, props
, zc
->zc_cookie
);
1538 if (zc
->zc_nvlist_dst
!= 0) {
1541 if ((err
= put_nvlist(zc
, config
)) != 0)
1545 nvlist_free(config
);
1552 zfs_ioc_pool_export(zfs_cmd_t
*zc
)
1555 boolean_t force
= (boolean_t
)zc
->zc_cookie
;
1556 boolean_t hardforce
= (boolean_t
)zc
->zc_guid
;
1558 zfs_log_history(zc
);
1559 error
= spa_export(zc
->zc_name
, NULL
, force
, hardforce
);
1565 zfs_ioc_pool_configs(zfs_cmd_t
*zc
)
1570 if ((configs
= spa_all_configs(&zc
->zc_cookie
)) == NULL
)
1571 return (SET_ERROR(EEXIST
));
1573 error
= put_nvlist(zc
, configs
);
1575 nvlist_free(configs
);
1582 * zc_name name of the pool
1585 * zc_cookie real errno
1586 * zc_nvlist_dst config nvlist
1587 * zc_nvlist_dst_size size of config nvlist
1590 zfs_ioc_pool_stats(zfs_cmd_t
*zc
)
1596 error
= spa_get_stats(zc
->zc_name
, &config
, zc
->zc_value
,
1597 sizeof (zc
->zc_value
));
1599 if (config
!= NULL
) {
1600 ret
= put_nvlist(zc
, config
);
1601 nvlist_free(config
);
1604 * The config may be present even if 'error' is non-zero.
1605 * In this case we return success, and preserve the real errno
1608 zc
->zc_cookie
= error
;
1617 * Try to import the given pool, returning pool stats as appropriate so that
1618 * user land knows which devices are available and overall pool health.
1621 zfs_ioc_pool_tryimport(zfs_cmd_t
*zc
)
1623 nvlist_t
*tryconfig
, *config
;
1626 if ((error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1627 zc
->zc_iflags
, &tryconfig
)) != 0)
1630 config
= spa_tryimport(tryconfig
);
1632 nvlist_free(tryconfig
);
1635 return (SET_ERROR(EINVAL
));
1637 error
= put_nvlist(zc
, config
);
1638 nvlist_free(config
);
1645 * zc_name name of the pool
1646 * zc_cookie scan func (pool_scan_func_t)
1649 zfs_ioc_pool_scan(zfs_cmd_t
*zc
)
1654 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1657 if (zc
->zc_cookie
== POOL_SCAN_NONE
)
1658 error
= spa_scan_stop(spa
);
1660 error
= spa_scan(spa
, zc
->zc_cookie
);
1662 spa_close(spa
, FTAG
);
1668 zfs_ioc_pool_freeze(zfs_cmd_t
*zc
)
1673 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
1676 spa_close(spa
, FTAG
);
1682 zfs_ioc_pool_upgrade(zfs_cmd_t
*zc
)
1687 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1690 if (zc
->zc_cookie
< spa_version(spa
) ||
1691 !SPA_VERSION_IS_SUPPORTED(zc
->zc_cookie
)) {
1692 spa_close(spa
, FTAG
);
1693 return (SET_ERROR(EINVAL
));
1696 spa_upgrade(spa
, zc
->zc_cookie
);
1697 spa_close(spa
, FTAG
);
1703 zfs_ioc_pool_get_history(zfs_cmd_t
*zc
)
1710 if ((size
= zc
->zc_history_len
) == 0)
1711 return (SET_ERROR(EINVAL
));
1713 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1716 if (spa_version(spa
) < SPA_VERSION_ZPOOL_HISTORY
) {
1717 spa_close(spa
, FTAG
);
1718 return (SET_ERROR(ENOTSUP
));
1721 hist_buf
= vmem_alloc(size
, KM_SLEEP
);
1722 if ((error
= spa_history_get(spa
, &zc
->zc_history_offset
,
1723 &zc
->zc_history_len
, hist_buf
)) == 0) {
1724 error
= ddi_copyout(hist_buf
,
1725 (void *)(uintptr_t)zc
->zc_history
,
1726 zc
->zc_history_len
, zc
->zc_iflags
);
1729 spa_close(spa
, FTAG
);
1730 vmem_free(hist_buf
, size
);
1735 zfs_ioc_pool_reguid(zfs_cmd_t
*zc
)
1740 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
1742 error
= spa_change_guid(spa
);
1743 spa_close(spa
, FTAG
);
1749 zfs_ioc_dsobj_to_dsname(zfs_cmd_t
*zc
)
1751 return (dsl_dsobj_to_dsname(zc
->zc_name
, zc
->zc_obj
, zc
->zc_value
));
1756 * zc_name name of filesystem
1757 * zc_obj object to find
1760 * zc_value name of object
1763 zfs_ioc_obj_to_path(zfs_cmd_t
*zc
)
1768 /* XXX reading from objset not owned */
1769 if ((error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
)) != 0)
1771 if (dmu_objset_type(os
) != DMU_OST_ZFS
) {
1772 dmu_objset_rele(os
, FTAG
);
1773 return (SET_ERROR(EINVAL
));
1775 error
= zfs_obj_to_path(os
, zc
->zc_obj
, zc
->zc_value
,
1776 sizeof (zc
->zc_value
));
1777 dmu_objset_rele(os
, FTAG
);
1784 * zc_name name of filesystem
1785 * zc_obj object to find
1788 * zc_stat stats on object
1789 * zc_value path to object
1792 zfs_ioc_obj_to_stats(zfs_cmd_t
*zc
)
1797 /* XXX reading from objset not owned */
1798 if ((error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
)) != 0)
1800 if (dmu_objset_type(os
) != DMU_OST_ZFS
) {
1801 dmu_objset_rele(os
, FTAG
);
1802 return (SET_ERROR(EINVAL
));
1804 error
= zfs_obj_to_stats(os
, zc
->zc_obj
, &zc
->zc_stat
, zc
->zc_value
,
1805 sizeof (zc
->zc_value
));
1806 dmu_objset_rele(os
, FTAG
);
1812 zfs_ioc_vdev_add(zfs_cmd_t
*zc
)
1818 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
1822 error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1823 zc
->zc_iflags
, &config
);
1825 error
= spa_vdev_add(spa
, config
);
1826 nvlist_free(config
);
1828 spa_close(spa
, FTAG
);
1834 * zc_name name of the pool
1835 * zc_nvlist_conf nvlist of devices to remove
1836 * zc_cookie to stop the remove?
1839 zfs_ioc_vdev_remove(zfs_cmd_t
*zc
)
1844 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
1847 error
= spa_vdev_remove(spa
, zc
->zc_guid
, B_FALSE
);
1848 spa_close(spa
, FTAG
);
1853 zfs_ioc_vdev_set_state(zfs_cmd_t
*zc
)
1857 vdev_state_t newstate
= VDEV_STATE_UNKNOWN
;
1859 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1861 switch (zc
->zc_cookie
) {
1862 case VDEV_STATE_ONLINE
:
1863 error
= vdev_online(spa
, zc
->zc_guid
, zc
->zc_obj
, &newstate
);
1866 case VDEV_STATE_OFFLINE
:
1867 error
= vdev_offline(spa
, zc
->zc_guid
, zc
->zc_obj
);
1870 case VDEV_STATE_FAULTED
:
1871 if (zc
->zc_obj
!= VDEV_AUX_ERR_EXCEEDED
&&
1872 zc
->zc_obj
!= VDEV_AUX_EXTERNAL
)
1873 zc
->zc_obj
= VDEV_AUX_ERR_EXCEEDED
;
1875 error
= vdev_fault(spa
, zc
->zc_guid
, zc
->zc_obj
);
1878 case VDEV_STATE_DEGRADED
:
1879 if (zc
->zc_obj
!= VDEV_AUX_ERR_EXCEEDED
&&
1880 zc
->zc_obj
!= VDEV_AUX_EXTERNAL
)
1881 zc
->zc_obj
= VDEV_AUX_ERR_EXCEEDED
;
1883 error
= vdev_degrade(spa
, zc
->zc_guid
, zc
->zc_obj
);
1887 error
= SET_ERROR(EINVAL
);
1889 zc
->zc_cookie
= newstate
;
1890 spa_close(spa
, FTAG
);
1895 zfs_ioc_vdev_attach(zfs_cmd_t
*zc
)
1898 int replacing
= zc
->zc_cookie
;
1902 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1905 if ((error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1906 zc
->zc_iflags
, &config
)) == 0) {
1907 error
= spa_vdev_attach(spa
, zc
->zc_guid
, config
, replacing
);
1908 nvlist_free(config
);
1911 spa_close(spa
, FTAG
);
1916 zfs_ioc_vdev_detach(zfs_cmd_t
*zc
)
1921 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1924 error
= spa_vdev_detach(spa
, zc
->zc_guid
, 0, B_FALSE
);
1926 spa_close(spa
, FTAG
);
1931 zfs_ioc_vdev_split(zfs_cmd_t
*zc
)
1934 nvlist_t
*config
, *props
= NULL
;
1936 boolean_t exp
= !!(zc
->zc_cookie
& ZPOOL_EXPORT_AFTER_SPLIT
);
1938 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1941 if ((error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1942 zc
->zc_iflags
, &config
))) {
1943 spa_close(spa
, FTAG
);
1947 if (zc
->zc_nvlist_src_size
!= 0 && (error
=
1948 get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
1949 zc
->zc_iflags
, &props
))) {
1950 spa_close(spa
, FTAG
);
1951 nvlist_free(config
);
1955 error
= spa_vdev_split_mirror(spa
, zc
->zc_string
, config
, props
, exp
);
1957 spa_close(spa
, FTAG
);
1959 nvlist_free(config
);
1966 zfs_ioc_vdev_setpath(zfs_cmd_t
*zc
)
1969 char *path
= zc
->zc_value
;
1970 uint64_t guid
= zc
->zc_guid
;
1973 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
1977 error
= spa_vdev_setpath(spa
, guid
, path
);
1978 spa_close(spa
, FTAG
);
1983 zfs_ioc_vdev_setfru(zfs_cmd_t
*zc
)
1986 char *fru
= zc
->zc_value
;
1987 uint64_t guid
= zc
->zc_guid
;
1990 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
1994 error
= spa_vdev_setfru(spa
, guid
, fru
);
1995 spa_close(spa
, FTAG
);
2000 zfs_ioc_objset_stats_impl(zfs_cmd_t
*zc
, objset_t
*os
)
2005 dmu_objset_fast_stat(os
, &zc
->zc_objset_stats
);
2007 if (zc
->zc_nvlist_dst
!= 0 &&
2008 (error
= dsl_prop_get_all(os
, &nv
)) == 0) {
2009 dmu_objset_stats(os
, nv
);
2011 * NB: zvol_get_stats() will read the objset contents,
2012 * which we aren't supposed to do with a
2013 * DS_MODE_USER hold, because it could be
2014 * inconsistent. So this is a bit of a workaround...
2015 * XXX reading with out owning
2017 if (!zc
->zc_objset_stats
.dds_inconsistent
&&
2018 dmu_objset_type(os
) == DMU_OST_ZVOL
) {
2019 error
= zvol_get_stats(os
, nv
);
2025 error
= put_nvlist(zc
, nv
);
2034 * zc_name name of filesystem
2035 * zc_nvlist_dst_size size of buffer for property nvlist
2038 * zc_objset_stats stats
2039 * zc_nvlist_dst property nvlist
2040 * zc_nvlist_dst_size size of property nvlist
2043 zfs_ioc_objset_stats(zfs_cmd_t
*zc
)
2048 error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
);
2050 error
= zfs_ioc_objset_stats_impl(zc
, os
);
2051 dmu_objset_rele(os
, FTAG
);
2059 * zc_name name of filesystem
2060 * zc_nvlist_dst_size size of buffer for property nvlist
2063 * zc_nvlist_dst received property nvlist
2064 * zc_nvlist_dst_size size of received property nvlist
2066 * Gets received properties (distinct from local properties on or after
2067 * SPA_VERSION_RECVD_PROPS) for callers who want to differentiate received from
2068 * local property values.
2071 zfs_ioc_objset_recvd_props(zfs_cmd_t
*zc
)
2077 * Without this check, we would return local property values if the
2078 * caller has not already received properties on or after
2079 * SPA_VERSION_RECVD_PROPS.
2081 if (!dsl_prop_get_hasrecvd(zc
->zc_name
))
2082 return (SET_ERROR(ENOTSUP
));
2084 if (zc
->zc_nvlist_dst
!= 0 &&
2085 (error
= dsl_prop_get_received(zc
->zc_name
, &nv
)) == 0) {
2086 error
= put_nvlist(zc
, nv
);
2094 nvl_add_zplprop(objset_t
*os
, nvlist_t
*props
, zfs_prop_t prop
)
2100 * zfs_get_zplprop() will either find a value or give us
2101 * the default value (if there is one).
2103 if ((error
= zfs_get_zplprop(os
, prop
, &value
)) != 0)
2105 VERIFY(nvlist_add_uint64(props
, zfs_prop_to_name(prop
), value
) == 0);
2111 * zc_name name of filesystem
2112 * zc_nvlist_dst_size size of buffer for zpl property nvlist
2115 * zc_nvlist_dst zpl property nvlist
2116 * zc_nvlist_dst_size size of zpl property nvlist
2119 zfs_ioc_objset_zplprops(zfs_cmd_t
*zc
)
2124 /* XXX reading without owning */
2125 if ((err
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
)))
2128 dmu_objset_fast_stat(os
, &zc
->zc_objset_stats
);
2131 * NB: nvl_add_zplprop() will read the objset contents,
2132 * which we aren't supposed to do with a DS_MODE_USER
2133 * hold, because it could be inconsistent.
2135 if (zc
->zc_nvlist_dst
!= 0 &&
2136 !zc
->zc_objset_stats
.dds_inconsistent
&&
2137 dmu_objset_type(os
) == DMU_OST_ZFS
) {
2140 VERIFY(nvlist_alloc(&nv
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
2141 if ((err
= nvl_add_zplprop(os
, nv
, ZFS_PROP_VERSION
)) == 0 &&
2142 (err
= nvl_add_zplprop(os
, nv
, ZFS_PROP_NORMALIZE
)) == 0 &&
2143 (err
= nvl_add_zplprop(os
, nv
, ZFS_PROP_UTF8ONLY
)) == 0 &&
2144 (err
= nvl_add_zplprop(os
, nv
, ZFS_PROP_CASE
)) == 0)
2145 err
= put_nvlist(zc
, nv
);
2148 err
= SET_ERROR(ENOENT
);
2150 dmu_objset_rele(os
, FTAG
);
2155 dataset_name_hidden(const char *name
)
2158 * Skip over datasets that are not visible in this zone,
2159 * internal datasets (which have a $ in their name), and
2160 * temporary datasets (which have a % in their name).
2162 if (strchr(name
, '$') != NULL
)
2164 if (strchr(name
, '%') != NULL
)
2166 if (!INGLOBALZONE(curproc
) && !zone_dataset_visible(name
, NULL
))
2173 * zc_name name of filesystem
2174 * zc_cookie zap cursor
2175 * zc_nvlist_dst_size size of buffer for property nvlist
2178 * zc_name name of next filesystem
2179 * zc_cookie zap cursor
2180 * zc_objset_stats stats
2181 * zc_nvlist_dst property nvlist
2182 * zc_nvlist_dst_size size of property nvlist
2185 zfs_ioc_dataset_list_next(zfs_cmd_t
*zc
)
2190 size_t orig_len
= strlen(zc
->zc_name
);
2193 if ((error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
))) {
2194 if (error
== ENOENT
)
2195 error
= SET_ERROR(ESRCH
);
2199 p
= strrchr(zc
->zc_name
, '/');
2200 if (p
== NULL
|| p
[1] != '\0')
2201 (void) strlcat(zc
->zc_name
, "/", sizeof (zc
->zc_name
));
2202 p
= zc
->zc_name
+ strlen(zc
->zc_name
);
2205 error
= dmu_dir_list_next(os
,
2206 sizeof (zc
->zc_name
) - (p
- zc
->zc_name
), p
,
2207 NULL
, &zc
->zc_cookie
);
2208 if (error
== ENOENT
)
2209 error
= SET_ERROR(ESRCH
);
2210 } while (error
== 0 && dataset_name_hidden(zc
->zc_name
));
2211 dmu_objset_rele(os
, FTAG
);
2214 * If it's an internal dataset (ie. with a '$' in its name),
2215 * don't try to get stats for it, otherwise we'll return ENOENT.
2217 if (error
== 0 && strchr(zc
->zc_name
, '$') == NULL
) {
2218 error
= zfs_ioc_objset_stats(zc
); /* fill in the stats */
2219 if (error
== ENOENT
) {
2220 /* We lost a race with destroy, get the next one. */
2221 zc
->zc_name
[orig_len
] = '\0';
2230 * zc_name name of filesystem
2231 * zc_cookie zap cursor
2232 * zc_nvlist_dst_size size of buffer for property nvlist
2235 * zc_name name of next snapshot
2236 * zc_objset_stats stats
2237 * zc_nvlist_dst property nvlist
2238 * zc_nvlist_dst_size size of property nvlist
2241 zfs_ioc_snapshot_list_next(zfs_cmd_t
*zc
)
2246 error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
);
2248 return (error
== ENOENT
? ESRCH
: error
);
2252 * A dataset name of maximum length cannot have any snapshots,
2253 * so exit immediately.
2255 if (strlcat(zc
->zc_name
, "@", sizeof (zc
->zc_name
)) >= MAXNAMELEN
) {
2256 dmu_objset_rele(os
, FTAG
);
2257 return (SET_ERROR(ESRCH
));
2260 error
= dmu_snapshot_list_next(os
,
2261 sizeof (zc
->zc_name
) - strlen(zc
->zc_name
),
2262 zc
->zc_name
+ strlen(zc
->zc_name
), &zc
->zc_obj
, &zc
->zc_cookie
,
2265 if (error
== 0 && !zc
->zc_simple
) {
2267 dsl_pool_t
*dp
= os
->os_dsl_dataset
->ds_dir
->dd_pool
;
2269 error
= dsl_dataset_hold_obj(dp
, zc
->zc_obj
, FTAG
, &ds
);
2273 error
= dmu_objset_from_ds(ds
, &ossnap
);
2275 error
= zfs_ioc_objset_stats_impl(zc
, ossnap
);
2276 dsl_dataset_rele(ds
, FTAG
);
2278 } else if (error
== ENOENT
) {
2279 error
= SET_ERROR(ESRCH
);
2282 dmu_objset_rele(os
, FTAG
);
2283 /* if we failed, undo the @ that we tacked on to zc_name */
2285 *strchr(zc
->zc_name
, '@') = '\0';
2290 zfs_prop_set_userquota(const char *dsname
, nvpair_t
*pair
)
2292 const char *propname
= nvpair_name(pair
);
2294 unsigned int vallen
;
2297 zfs_userquota_prop_t type
;
2303 if (nvpair_type(pair
) == DATA_TYPE_NVLIST
) {
2305 VERIFY(nvpair_value_nvlist(pair
, &attrs
) == 0);
2306 if (nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
2308 return (SET_ERROR(EINVAL
));
2312 * A correctly constructed propname is encoded as
2313 * userquota@<rid>-<domain>.
2315 if ((dash
= strchr(propname
, '-')) == NULL
||
2316 nvpair_value_uint64_array(pair
, &valary
, &vallen
) != 0 ||
2318 return (SET_ERROR(EINVAL
));
2325 err
= zfs_sb_hold(dsname
, FTAG
, &zsb
, B_FALSE
);
2327 err
= zfs_set_userquota(zsb
, type
, domain
, rid
, quota
);
2328 zfs_sb_rele(zsb
, FTAG
);
2335 * If the named property is one that has a special function to set its value,
2336 * return 0 on success and a positive error code on failure; otherwise if it is
2337 * not one of the special properties handled by this function, return -1.
2339 * XXX: It would be better for callers of the property interface if we handled
2340 * these special cases in dsl_prop.c (in the dsl layer).
2343 zfs_prop_set_special(const char *dsname
, zprop_source_t source
,
2346 const char *propname
= nvpair_name(pair
);
2347 zfs_prop_t prop
= zfs_name_to_prop(propname
);
2351 if (prop
== ZPROP_INVAL
) {
2352 if (zfs_prop_userquota(propname
))
2353 return (zfs_prop_set_userquota(dsname
, pair
));
2357 if (nvpair_type(pair
) == DATA_TYPE_NVLIST
) {
2359 VERIFY(nvpair_value_nvlist(pair
, &attrs
) == 0);
2360 VERIFY(nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
2364 if (zfs_prop_get_type(prop
) == PROP_TYPE_STRING
)
2367 VERIFY(0 == nvpair_value_uint64(pair
, &intval
));
2370 case ZFS_PROP_QUOTA
:
2371 err
= dsl_dir_set_quota(dsname
, source
, intval
);
2373 case ZFS_PROP_REFQUOTA
:
2374 err
= dsl_dataset_set_refquota(dsname
, source
, intval
);
2376 case ZFS_PROP_FILESYSTEM_LIMIT
:
2377 case ZFS_PROP_SNAPSHOT_LIMIT
:
2378 if (intval
== UINT64_MAX
) {
2379 /* clearing the limit, just do it */
2382 err
= dsl_dir_activate_fs_ss_limit(dsname
);
2385 * Set err to -1 to force the zfs_set_prop_nvlist code down the
2386 * default path to set the value in the nvlist.
2391 case ZFS_PROP_RESERVATION
:
2392 err
= dsl_dir_set_reservation(dsname
, source
, intval
);
2394 case ZFS_PROP_REFRESERVATION
:
2395 err
= dsl_dataset_set_refreservation(dsname
, source
, intval
);
2397 case ZFS_PROP_VOLSIZE
:
2398 err
= zvol_set_volsize(dsname
, intval
);
2400 case ZFS_PROP_SNAPDEV
:
2401 err
= zvol_set_snapdev(dsname
, source
, intval
);
2403 case ZFS_PROP_VERSION
:
2407 if ((err
= zfs_sb_hold(dsname
, FTAG
, &zsb
, B_TRUE
)) != 0)
2410 err
= zfs_set_version(zsb
, intval
);
2411 zfs_sb_rele(zsb
, FTAG
);
2413 if (err
== 0 && intval
>= ZPL_VERSION_USERSPACE
) {
2416 zc
= kmem_zalloc(sizeof (zfs_cmd_t
), KM_SLEEP
);
2417 (void) strcpy(zc
->zc_name
, dsname
);
2418 (void) zfs_ioc_userspace_upgrade(zc
);
2419 kmem_free(zc
, sizeof (zfs_cmd_t
));
2431 * This function is best effort. If it fails to set any of the given properties,
2432 * it continues to set as many as it can and returns the last error
2433 * encountered. If the caller provides a non-NULL errlist, it will be filled in
2434 * with the list of names of all the properties that failed along with the
2435 * corresponding error numbers.
2437 * If every property is set successfully, zero is returned and errlist is not
2441 zfs_set_prop_nvlist(const char *dsname
, zprop_source_t source
, nvlist_t
*nvl
,
2450 nvlist_t
*genericnvl
= fnvlist_alloc();
2451 nvlist_t
*retrynvl
= fnvlist_alloc();
2454 while ((pair
= nvlist_next_nvpair(nvl
, pair
)) != NULL
) {
2455 const char *propname
= nvpair_name(pair
);
2456 zfs_prop_t prop
= zfs_name_to_prop(propname
);
2459 /* decode the property value */
2461 if (nvpair_type(pair
) == DATA_TYPE_NVLIST
) {
2463 attrs
= fnvpair_value_nvlist(pair
);
2464 if (nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
2466 err
= SET_ERROR(EINVAL
);
2469 /* Validate value type */
2470 if (err
== 0 && prop
== ZPROP_INVAL
) {
2471 if (zfs_prop_user(propname
)) {
2472 if (nvpair_type(propval
) != DATA_TYPE_STRING
)
2473 err
= SET_ERROR(EINVAL
);
2474 } else if (zfs_prop_userquota(propname
)) {
2475 if (nvpair_type(propval
) !=
2476 DATA_TYPE_UINT64_ARRAY
)
2477 err
= SET_ERROR(EINVAL
);
2479 err
= SET_ERROR(EINVAL
);
2481 } else if (err
== 0) {
2482 if (nvpair_type(propval
) == DATA_TYPE_STRING
) {
2483 if (zfs_prop_get_type(prop
) != PROP_TYPE_STRING
)
2484 err
= SET_ERROR(EINVAL
);
2485 } else if (nvpair_type(propval
) == DATA_TYPE_UINT64
) {
2488 intval
= fnvpair_value_uint64(propval
);
2490 switch (zfs_prop_get_type(prop
)) {
2491 case PROP_TYPE_NUMBER
:
2493 case PROP_TYPE_STRING
:
2494 err
= SET_ERROR(EINVAL
);
2496 case PROP_TYPE_INDEX
:
2497 if (zfs_prop_index_to_string(prop
,
2498 intval
, &unused
) != 0)
2499 err
= SET_ERROR(EINVAL
);
2503 "unknown property type");
2506 err
= SET_ERROR(EINVAL
);
2510 /* Validate permissions */
2512 err
= zfs_check_settable(dsname
, pair
, CRED());
2515 err
= zfs_prop_set_special(dsname
, source
, pair
);
2518 * For better performance we build up a list of
2519 * properties to set in a single transaction.
2521 err
= nvlist_add_nvpair(genericnvl
, pair
);
2522 } else if (err
!= 0 && nvl
!= retrynvl
) {
2524 * This may be a spurious error caused by
2525 * receiving quota and reservation out of order.
2526 * Try again in a second pass.
2528 err
= nvlist_add_nvpair(retrynvl
, pair
);
2533 if (errlist
!= NULL
)
2534 fnvlist_add_int32(errlist
, propname
, err
);
2539 if (nvl
!= retrynvl
&& !nvlist_empty(retrynvl
)) {
2544 if (!nvlist_empty(genericnvl
) &&
2545 dsl_props_set(dsname
, source
, genericnvl
) != 0) {
2547 * If this fails, we still want to set as many properties as we
2548 * can, so try setting them individually.
2551 while ((pair
= nvlist_next_nvpair(genericnvl
, pair
)) != NULL
) {
2552 const char *propname
= nvpair_name(pair
);
2556 if (nvpair_type(pair
) == DATA_TYPE_NVLIST
) {
2558 attrs
= fnvpair_value_nvlist(pair
);
2559 propval
= fnvlist_lookup_nvpair(attrs
,
2563 if (nvpair_type(propval
) == DATA_TYPE_STRING
) {
2564 strval
= fnvpair_value_string(propval
);
2565 err
= dsl_prop_set_string(dsname
, propname
,
2568 intval
= fnvpair_value_uint64(propval
);
2569 err
= dsl_prop_set_int(dsname
, propname
, source
,
2574 if (errlist
!= NULL
) {
2575 fnvlist_add_int32(errlist
, propname
,
2582 nvlist_free(genericnvl
);
2583 nvlist_free(retrynvl
);
2589 * Check that all the properties are valid user properties.
2592 zfs_check_userprops(const char *fsname
, nvlist_t
*nvl
)
2594 nvpair_t
*pair
= NULL
;
2597 while ((pair
= nvlist_next_nvpair(nvl
, pair
)) != NULL
) {
2598 const char *propname
= nvpair_name(pair
);
2600 if (!zfs_prop_user(propname
) ||
2601 nvpair_type(pair
) != DATA_TYPE_STRING
)
2602 return (SET_ERROR(EINVAL
));
2604 if ((error
= zfs_secpolicy_write_perms(fsname
,
2605 ZFS_DELEG_PERM_USERPROP
, CRED())))
2608 if (strlen(propname
) >= ZAP_MAXNAMELEN
)
2609 return (SET_ERROR(ENAMETOOLONG
));
2611 if (strlen(fnvpair_value_string(pair
)) >= ZAP_MAXVALUELEN
)
2612 return (SET_ERROR(E2BIG
));
2618 props_skip(nvlist_t
*props
, nvlist_t
*skipped
, nvlist_t
**newprops
)
2622 VERIFY(nvlist_alloc(newprops
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
2625 while ((pair
= nvlist_next_nvpair(props
, pair
)) != NULL
) {
2626 if (nvlist_exists(skipped
, nvpair_name(pair
)))
2629 VERIFY(nvlist_add_nvpair(*newprops
, pair
) == 0);
2634 clear_received_props(const char *dsname
, nvlist_t
*props
,
2638 nvlist_t
*cleared_props
= NULL
;
2639 props_skip(props
, skipped
, &cleared_props
);
2640 if (!nvlist_empty(cleared_props
)) {
2642 * Acts on local properties until the dataset has received
2643 * properties at least once on or after SPA_VERSION_RECVD_PROPS.
2645 zprop_source_t flags
= (ZPROP_SRC_NONE
|
2646 (dsl_prop_get_hasrecvd(dsname
) ? ZPROP_SRC_RECEIVED
: 0));
2647 err
= zfs_set_prop_nvlist(dsname
, flags
, cleared_props
, NULL
);
2649 nvlist_free(cleared_props
);
2655 * zc_name name of filesystem
2656 * zc_value name of property to set
2657 * zc_nvlist_src{_size} nvlist of properties to apply
2658 * zc_cookie received properties flag
2661 * zc_nvlist_dst{_size} error for each unapplied received property
2664 zfs_ioc_set_prop(zfs_cmd_t
*zc
)
2667 boolean_t received
= zc
->zc_cookie
;
2668 zprop_source_t source
= (received
? ZPROP_SRC_RECEIVED
:
2673 if ((error
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
2674 zc
->zc_iflags
, &nvl
)) != 0)
2678 nvlist_t
*origprops
;
2680 if (dsl_prop_get_received(zc
->zc_name
, &origprops
) == 0) {
2681 (void) clear_received_props(zc
->zc_name
,
2683 nvlist_free(origprops
);
2686 error
= dsl_prop_set_hasrecvd(zc
->zc_name
);
2689 errors
= fnvlist_alloc();
2691 error
= zfs_set_prop_nvlist(zc
->zc_name
, source
, nvl
, errors
);
2693 if (zc
->zc_nvlist_dst
!= 0 && errors
!= NULL
) {
2694 (void) put_nvlist(zc
, errors
);
2697 nvlist_free(errors
);
2704 * zc_name name of filesystem
2705 * zc_value name of property to inherit
2706 * zc_cookie revert to received value if TRUE
2711 zfs_ioc_inherit_prop(zfs_cmd_t
*zc
)
2713 const char *propname
= zc
->zc_value
;
2714 zfs_prop_t prop
= zfs_name_to_prop(propname
);
2715 boolean_t received
= zc
->zc_cookie
;
2716 zprop_source_t source
= (received
2717 ? ZPROP_SRC_NONE
/* revert to received value, if any */
2718 : ZPROP_SRC_INHERITED
); /* explicitly inherit */
2727 * zfs_prop_set_special() expects properties in the form of an
2728 * nvpair with type info.
2730 if (prop
== ZPROP_INVAL
) {
2731 if (!zfs_prop_user(propname
))
2732 return (SET_ERROR(EINVAL
));
2734 type
= PROP_TYPE_STRING
;
2735 } else if (prop
== ZFS_PROP_VOLSIZE
||
2736 prop
== ZFS_PROP_VERSION
) {
2737 return (SET_ERROR(EINVAL
));
2739 type
= zfs_prop_get_type(prop
);
2742 VERIFY(nvlist_alloc(&dummy
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
2745 case PROP_TYPE_STRING
:
2746 VERIFY(0 == nvlist_add_string(dummy
, propname
, ""));
2748 case PROP_TYPE_NUMBER
:
2749 case PROP_TYPE_INDEX
:
2750 VERIFY(0 == nvlist_add_uint64(dummy
, propname
, 0));
2754 return (SET_ERROR(EINVAL
));
2757 pair
= nvlist_next_nvpair(dummy
, NULL
);
2758 err
= zfs_prop_set_special(zc
->zc_name
, source
, pair
);
2761 return (err
); /* special property already handled */
2764 * Only check this in the non-received case. We want to allow
2765 * 'inherit -S' to revert non-inheritable properties like quota
2766 * and reservation to the received or default values even though
2767 * they are not considered inheritable.
2769 if (prop
!= ZPROP_INVAL
&& !zfs_prop_inheritable(prop
))
2770 return (SET_ERROR(EINVAL
));
2773 /* property name has been validated by zfs_secpolicy_inherit_prop() */
2774 return (dsl_prop_inherit(zc
->zc_name
, zc
->zc_value
, source
));
2778 zfs_ioc_pool_set_props(zfs_cmd_t
*zc
)
2785 if ((error
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
2786 zc
->zc_iflags
, &props
)))
2790 * If the only property is the configfile, then just do a spa_lookup()
2791 * to handle the faulted case.
2793 pair
= nvlist_next_nvpair(props
, NULL
);
2794 if (pair
!= NULL
&& strcmp(nvpair_name(pair
),
2795 zpool_prop_to_name(ZPOOL_PROP_CACHEFILE
)) == 0 &&
2796 nvlist_next_nvpair(props
, pair
) == NULL
) {
2797 mutex_enter(&spa_namespace_lock
);
2798 if ((spa
= spa_lookup(zc
->zc_name
)) != NULL
) {
2799 spa_configfile_set(spa
, props
, B_FALSE
);
2800 spa_config_sync(spa
, B_FALSE
, B_TRUE
);
2802 mutex_exit(&spa_namespace_lock
);
2809 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0) {
2814 error
= spa_prop_set(spa
, props
);
2817 spa_close(spa
, FTAG
);
2823 zfs_ioc_pool_get_props(zfs_cmd_t
*zc
)
2827 nvlist_t
*nvp
= NULL
;
2829 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0) {
2831 * If the pool is faulted, there may be properties we can still
2832 * get (such as altroot and cachefile), so attempt to get them
2835 mutex_enter(&spa_namespace_lock
);
2836 if ((spa
= spa_lookup(zc
->zc_name
)) != NULL
)
2837 error
= spa_prop_get(spa
, &nvp
);
2838 mutex_exit(&spa_namespace_lock
);
2840 error
= spa_prop_get(spa
, &nvp
);
2841 spa_close(spa
, FTAG
);
2844 if (error
== 0 && zc
->zc_nvlist_dst
!= 0)
2845 error
= put_nvlist(zc
, nvp
);
2847 error
= SET_ERROR(EFAULT
);
2855 * zc_name name of filesystem
2856 * zc_nvlist_src{_size} nvlist of delegated permissions
2857 * zc_perm_action allow/unallow flag
2862 zfs_ioc_set_fsacl(zfs_cmd_t
*zc
)
2865 nvlist_t
*fsaclnv
= NULL
;
2867 if ((error
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
2868 zc
->zc_iflags
, &fsaclnv
)) != 0)
2872 * Verify nvlist is constructed correctly
2874 if ((error
= zfs_deleg_verify_nvlist(fsaclnv
)) != 0) {
2875 nvlist_free(fsaclnv
);
2876 return (SET_ERROR(EINVAL
));
2880 * If we don't have PRIV_SYS_MOUNT, then validate
2881 * that user is allowed to hand out each permission in
2885 error
= secpolicy_zfs(CRED());
2887 if (zc
->zc_perm_action
== B_FALSE
) {
2888 error
= dsl_deleg_can_allow(zc
->zc_name
,
2891 error
= dsl_deleg_can_unallow(zc
->zc_name
,
2897 error
= dsl_deleg_set(zc
->zc_name
, fsaclnv
, zc
->zc_perm_action
);
2899 nvlist_free(fsaclnv
);
2905 * zc_name name of filesystem
2908 * zc_nvlist_src{_size} nvlist of delegated permissions
2911 zfs_ioc_get_fsacl(zfs_cmd_t
*zc
)
2916 if ((error
= dsl_deleg_get(zc
->zc_name
, &nvp
)) == 0) {
2917 error
= put_nvlist(zc
, nvp
);
2926 zfs_create_cb(objset_t
*os
, void *arg
, cred_t
*cr
, dmu_tx_t
*tx
)
2928 zfs_creat_t
*zct
= arg
;
2930 zfs_create_fs(os
, cr
, zct
->zct_zplprops
, tx
);
2933 #define ZFS_PROP_UNDEFINED ((uint64_t)-1)
2937 * os parent objset pointer (NULL if root fs)
2938 * fuids_ok fuids allowed in this version of the spa?
2939 * sa_ok SAs allowed in this version of the spa?
2940 * createprops list of properties requested by creator
2943 * zplprops values for the zplprops we attach to the master node object
2944 * is_ci true if requested file system will be purely case-insensitive
2946 * Determine the settings for utf8only, normalization and
2947 * casesensitivity. Specific values may have been requested by the
2948 * creator and/or we can inherit values from the parent dataset. If
2949 * the file system is of too early a vintage, a creator can not
2950 * request settings for these properties, even if the requested
2951 * setting is the default value. We don't actually want to create dsl
2952 * properties for these, so remove them from the source nvlist after
2956 zfs_fill_zplprops_impl(objset_t
*os
, uint64_t zplver
,
2957 boolean_t fuids_ok
, boolean_t sa_ok
, nvlist_t
*createprops
,
2958 nvlist_t
*zplprops
, boolean_t
*is_ci
)
2960 uint64_t sense
= ZFS_PROP_UNDEFINED
;
2961 uint64_t norm
= ZFS_PROP_UNDEFINED
;
2962 uint64_t u8
= ZFS_PROP_UNDEFINED
;
2965 ASSERT(zplprops
!= NULL
);
2968 * Pull out creator prop choices, if any.
2971 (void) nvlist_lookup_uint64(createprops
,
2972 zfs_prop_to_name(ZFS_PROP_VERSION
), &zplver
);
2973 (void) nvlist_lookup_uint64(createprops
,
2974 zfs_prop_to_name(ZFS_PROP_NORMALIZE
), &norm
);
2975 (void) nvlist_remove_all(createprops
,
2976 zfs_prop_to_name(ZFS_PROP_NORMALIZE
));
2977 (void) nvlist_lookup_uint64(createprops
,
2978 zfs_prop_to_name(ZFS_PROP_UTF8ONLY
), &u8
);
2979 (void) nvlist_remove_all(createprops
,
2980 zfs_prop_to_name(ZFS_PROP_UTF8ONLY
));
2981 (void) nvlist_lookup_uint64(createprops
,
2982 zfs_prop_to_name(ZFS_PROP_CASE
), &sense
);
2983 (void) nvlist_remove_all(createprops
,
2984 zfs_prop_to_name(ZFS_PROP_CASE
));
2988 * If the zpl version requested is whacky or the file system
2989 * or pool is version is too "young" to support normalization
2990 * and the creator tried to set a value for one of the props,
2993 if ((zplver
< ZPL_VERSION_INITIAL
|| zplver
> ZPL_VERSION
) ||
2994 (zplver
>= ZPL_VERSION_FUID
&& !fuids_ok
) ||
2995 (zplver
>= ZPL_VERSION_SA
&& !sa_ok
) ||
2996 (zplver
< ZPL_VERSION_NORMALIZATION
&&
2997 (norm
!= ZFS_PROP_UNDEFINED
|| u8
!= ZFS_PROP_UNDEFINED
||
2998 sense
!= ZFS_PROP_UNDEFINED
)))
2999 return (SET_ERROR(ENOTSUP
));
3002 * Put the version in the zplprops
3004 VERIFY(nvlist_add_uint64(zplprops
,
3005 zfs_prop_to_name(ZFS_PROP_VERSION
), zplver
) == 0);
3007 if (norm
== ZFS_PROP_UNDEFINED
&&
3008 (error
= zfs_get_zplprop(os
, ZFS_PROP_NORMALIZE
, &norm
)) != 0)
3010 VERIFY(nvlist_add_uint64(zplprops
,
3011 zfs_prop_to_name(ZFS_PROP_NORMALIZE
), norm
) == 0);
3014 * If we're normalizing, names must always be valid UTF-8 strings.
3018 if (u8
== ZFS_PROP_UNDEFINED
&&
3019 (error
= zfs_get_zplprop(os
, ZFS_PROP_UTF8ONLY
, &u8
)) != 0)
3021 VERIFY(nvlist_add_uint64(zplprops
,
3022 zfs_prop_to_name(ZFS_PROP_UTF8ONLY
), u8
) == 0);
3024 if (sense
== ZFS_PROP_UNDEFINED
&&
3025 (error
= zfs_get_zplprop(os
, ZFS_PROP_CASE
, &sense
)) != 0)
3027 VERIFY(nvlist_add_uint64(zplprops
,
3028 zfs_prop_to_name(ZFS_PROP_CASE
), sense
) == 0);
3031 *is_ci
= (sense
== ZFS_CASE_INSENSITIVE
);
3037 zfs_fill_zplprops(const char *dataset
, nvlist_t
*createprops
,
3038 nvlist_t
*zplprops
, boolean_t
*is_ci
)
3040 boolean_t fuids_ok
, sa_ok
;
3041 uint64_t zplver
= ZPL_VERSION
;
3042 objset_t
*os
= NULL
;
3043 char parentname
[MAXNAMELEN
];
3049 (void) strlcpy(parentname
, dataset
, sizeof (parentname
));
3050 cp
= strrchr(parentname
, '/');
3054 if ((error
= spa_open(dataset
, &spa
, FTAG
)) != 0)
3057 spa_vers
= spa_version(spa
);
3058 spa_close(spa
, FTAG
);
3060 zplver
= zfs_zpl_version_map(spa_vers
);
3061 fuids_ok
= (zplver
>= ZPL_VERSION_FUID
);
3062 sa_ok
= (zplver
>= ZPL_VERSION_SA
);
3065 * Open parent object set so we can inherit zplprop values.
3067 if ((error
= dmu_objset_hold(parentname
, FTAG
, &os
)) != 0)
3070 error
= zfs_fill_zplprops_impl(os
, zplver
, fuids_ok
, sa_ok
, createprops
,
3072 dmu_objset_rele(os
, FTAG
);
3077 zfs_fill_zplprops_root(uint64_t spa_vers
, nvlist_t
*createprops
,
3078 nvlist_t
*zplprops
, boolean_t
*is_ci
)
3082 uint64_t zplver
= ZPL_VERSION
;
3085 zplver
= zfs_zpl_version_map(spa_vers
);
3086 fuids_ok
= (zplver
>= ZPL_VERSION_FUID
);
3087 sa_ok
= (zplver
>= ZPL_VERSION_SA
);
3089 error
= zfs_fill_zplprops_impl(NULL
, zplver
, fuids_ok
, sa_ok
,
3090 createprops
, zplprops
, is_ci
);
3096 * "type" -> dmu_objset_type_t (int32)
3097 * (optional) "props" -> { prop -> value }
3100 * outnvl: propname -> error code (int32)
3103 zfs_ioc_create(const char *fsname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
3106 zfs_creat_t zct
= { 0 };
3107 nvlist_t
*nvprops
= NULL
;
3108 void (*cbfunc
)(objset_t
*os
, void *arg
, cred_t
*cr
, dmu_tx_t
*tx
);
3110 dmu_objset_type_t type
;
3111 boolean_t is_insensitive
= B_FALSE
;
3113 if (nvlist_lookup_int32(innvl
, "type", &type32
) != 0)
3114 return (SET_ERROR(EINVAL
));
3116 (void) nvlist_lookup_nvlist(innvl
, "props", &nvprops
);
3120 cbfunc
= zfs_create_cb
;
3124 cbfunc
= zvol_create_cb
;
3131 if (strchr(fsname
, '@') ||
3132 strchr(fsname
, '%'))
3133 return (SET_ERROR(EINVAL
));
3135 zct
.zct_props
= nvprops
;
3138 return (SET_ERROR(EINVAL
));
3140 if (type
== DMU_OST_ZVOL
) {
3141 uint64_t volsize
, volblocksize
;
3143 if (nvprops
== NULL
)
3144 return (SET_ERROR(EINVAL
));
3145 if (nvlist_lookup_uint64(nvprops
,
3146 zfs_prop_to_name(ZFS_PROP_VOLSIZE
), &volsize
) != 0)
3147 return (SET_ERROR(EINVAL
));
3149 if ((error
= nvlist_lookup_uint64(nvprops
,
3150 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE
),
3151 &volblocksize
)) != 0 && error
!= ENOENT
)
3152 return (SET_ERROR(EINVAL
));
3155 volblocksize
= zfs_prop_default_numeric(
3156 ZFS_PROP_VOLBLOCKSIZE
);
3158 if ((error
= zvol_check_volblocksize(fsname
,
3159 volblocksize
)) != 0 ||
3160 (error
= zvol_check_volsize(volsize
,
3161 volblocksize
)) != 0)
3163 } else if (type
== DMU_OST_ZFS
) {
3167 * We have to have normalization and
3168 * case-folding flags correct when we do the
3169 * file system creation, so go figure them out
3172 VERIFY(nvlist_alloc(&zct
.zct_zplprops
,
3173 NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
3174 error
= zfs_fill_zplprops(fsname
, nvprops
,
3175 zct
.zct_zplprops
, &is_insensitive
);
3177 nvlist_free(zct
.zct_zplprops
);
3182 error
= dmu_objset_create(fsname
, type
,
3183 is_insensitive
? DS_FLAG_CI_DATASET
: 0, cbfunc
, &zct
);
3184 nvlist_free(zct
.zct_zplprops
);
3187 * It would be nice to do this atomically.
3190 error
= zfs_set_prop_nvlist(fsname
, ZPROP_SRC_LOCAL
,
3197 * Volumes will return EBUSY and cannot be destroyed
3198 * until all asynchronous minor handling has completed.
3199 * Wait for the spa_zvol_taskq to drain then retry.
3201 error2
= dsl_destroy_head(fsname
);
3202 while ((error2
== EBUSY
) && (type
== DMU_OST_ZVOL
)) {
3203 error2
= spa_open(fsname
, &spa
, FTAG
);
3205 taskq_wait(spa
->spa_zvol_taskq
);
3206 spa_close(spa
, FTAG
);
3208 error2
= dsl_destroy_head(fsname
);
3217 * "origin" -> name of origin snapshot
3218 * (optional) "props" -> { prop -> value }
3222 * outnvl: propname -> error code (int32)
3225 zfs_ioc_clone(const char *fsname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
3228 nvlist_t
*nvprops
= NULL
;
3231 if (nvlist_lookup_string(innvl
, "origin", &origin_name
) != 0)
3232 return (SET_ERROR(EINVAL
));
3233 (void) nvlist_lookup_nvlist(innvl
, "props", &nvprops
);
3235 if (strchr(fsname
, '@') ||
3236 strchr(fsname
, '%'))
3237 return (SET_ERROR(EINVAL
));
3239 if (dataset_namecheck(origin_name
, NULL
, NULL
) != 0)
3240 return (SET_ERROR(EINVAL
));
3241 error
= dmu_objset_clone(fsname
, origin_name
);
3246 * It would be nice to do this atomically.
3249 error
= zfs_set_prop_nvlist(fsname
, ZPROP_SRC_LOCAL
,
3252 (void) dsl_destroy_head(fsname
);
3259 * "snaps" -> { snapshot1, snapshot2 }
3260 * (optional) "props" -> { prop -> value (string) }
3263 * outnvl: snapshot -> error code (int32)
3266 zfs_ioc_snapshot(const char *poolname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
3269 nvlist_t
*props
= NULL
;
3271 nvpair_t
*pair
, *pair2
;
3273 (void) nvlist_lookup_nvlist(innvl
, "props", &props
);
3274 if ((error
= zfs_check_userprops(poolname
, props
)) != 0)
3277 if (!nvlist_empty(props
) &&
3278 zfs_earlier_version(poolname
, SPA_VERSION_SNAP_PROPS
))
3279 return (SET_ERROR(ENOTSUP
));
3281 if (nvlist_lookup_nvlist(innvl
, "snaps", &snaps
) != 0)
3282 return (SET_ERROR(EINVAL
));
3283 poollen
= strlen(poolname
);
3284 for (pair
= nvlist_next_nvpair(snaps
, NULL
); pair
!= NULL
;
3285 pair
= nvlist_next_nvpair(snaps
, pair
)) {
3286 const char *name
= nvpair_name(pair
);
3287 const char *cp
= strchr(name
, '@');
3290 * The snap name must contain an @, and the part after it must
3291 * contain only valid characters.
3294 zfs_component_namecheck(cp
+ 1, NULL
, NULL
) != 0)
3295 return (SET_ERROR(EINVAL
));
3298 * The snap must be in the specified pool.
3300 if (strncmp(name
, poolname
, poollen
) != 0 ||
3301 (name
[poollen
] != '/' && name
[poollen
] != '@'))
3302 return (SET_ERROR(EXDEV
));
3304 /* This must be the only snap of this fs. */
3305 for (pair2
= nvlist_next_nvpair(snaps
, pair
);
3306 pair2
!= NULL
; pair2
= nvlist_next_nvpair(snaps
, pair2
)) {
3307 if (strncmp(name
, nvpair_name(pair2
), cp
- name
+ 1)
3309 return (SET_ERROR(EXDEV
));
3314 error
= dsl_dataset_snapshot(snaps
, props
, outnvl
);
3320 * innvl: "message" -> string
3324 zfs_ioc_log_history(const char *unused
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
3332 * The poolname in the ioctl is not set, we get it from the TSD,
3333 * which was set at the end of the last successful ioctl that allows
3334 * logging. The secpolicy func already checked that it is set.
3335 * Only one log ioctl is allowed after each successful ioctl, so
3336 * we clear the TSD here.
3338 poolname
= tsd_get(zfs_allow_log_key
);
3339 (void) tsd_set(zfs_allow_log_key
, NULL
);
3340 error
= spa_open(poolname
, &spa
, FTAG
);
3345 if (nvlist_lookup_string(innvl
, "message", &message
) != 0) {
3346 spa_close(spa
, FTAG
);
3347 return (SET_ERROR(EINVAL
));
3350 if (spa_version(spa
) < SPA_VERSION_ZPOOL_HISTORY
) {
3351 spa_close(spa
, FTAG
);
3352 return (SET_ERROR(ENOTSUP
));
3355 error
= spa_history_log(spa
, message
);
3356 spa_close(spa
, FTAG
);
3361 * The dp_config_rwlock must not be held when calling this, because the
3362 * unmount may need to write out data.
3364 * This function is best-effort. Callers must deal gracefully if it
3365 * remains mounted (or is remounted after this call).
3367 * Returns 0 if the argument is not a snapshot, or it is not currently a
3368 * filesystem, or we were able to unmount it. Returns error code otherwise.
3371 zfs_unmount_snap(const char *snapname
)
3375 if (strchr(snapname
, '@') == NULL
)
3378 err
= zfsctl_snapshot_unmount((char *)snapname
, MNT_FORCE
);
3379 if (err
!= 0 && err
!= ENOENT
)
3380 return (SET_ERROR(err
));
3387 zfs_unmount_snap_cb(const char *snapname
, void *arg
)
3389 return (zfs_unmount_snap(snapname
));
3393 * When a clone is destroyed, its origin may also need to be destroyed,
3394 * in which case it must be unmounted. This routine will do that unmount
3398 zfs_destroy_unmount_origin(const char *fsname
)
3404 error
= dmu_objset_hold(fsname
, FTAG
, &os
);
3407 ds
= dmu_objset_ds(os
);
3408 if (dsl_dir_is_clone(ds
->ds_dir
) && DS_IS_DEFER_DESTROY(ds
->ds_prev
)) {
3409 char originname
[MAXNAMELEN
];
3410 dsl_dataset_name(ds
->ds_prev
, originname
);
3411 dmu_objset_rele(os
, FTAG
);
3412 (void) zfs_unmount_snap(originname
);
3414 dmu_objset_rele(os
, FTAG
);
3420 * "snaps" -> { snapshot1, snapshot2 }
3421 * (optional boolean) "defer"
3424 * outnvl: snapshot -> error code (int32)
3428 zfs_ioc_destroy_snaps(const char *poolname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
3434 if (nvlist_lookup_nvlist(innvl
, "snaps", &snaps
) != 0)
3435 return (SET_ERROR(EINVAL
));
3436 defer
= nvlist_exists(innvl
, "defer");
3438 for (pair
= nvlist_next_nvpair(snaps
, NULL
); pair
!= NULL
;
3439 pair
= nvlist_next_nvpair(snaps
, pair
)) {
3440 (void) zfs_unmount_snap(nvpair_name(pair
));
3443 return (dsl_destroy_snapshots_nvl(snaps
, defer
, outnvl
));
3447 * Create bookmarks. Bookmark names are of the form <fs>#<bmark>.
3448 * All bookmarks must be in the same pool.
3451 * bookmark1 -> snapshot1, bookmark2 -> snapshot2
3454 * outnvl: bookmark -> error code (int32)
3459 zfs_ioc_bookmark(const char *poolname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
3461 nvpair_t
*pair
, *pair2
;
3463 for (pair
= nvlist_next_nvpair(innvl
, NULL
);
3464 pair
!= NULL
; pair
= nvlist_next_nvpair(innvl
, pair
)) {
3468 * Verify the snapshot argument.
3470 if (nvpair_value_string(pair
, &snap_name
) != 0)
3471 return (SET_ERROR(EINVAL
));
3474 /* Verify that the keys (bookmarks) are unique */
3475 for (pair2
= nvlist_next_nvpair(innvl
, pair
);
3476 pair2
!= NULL
; pair2
= nvlist_next_nvpair(innvl
, pair2
)) {
3477 if (strcmp(nvpair_name(pair
), nvpair_name(pair2
)) == 0)
3478 return (SET_ERROR(EINVAL
));
3482 return (dsl_bookmark_create(innvl
, outnvl
));
3487 * property 1, property 2, ...
3491 * bookmark name 1 -> { property 1, property 2, ... },
3492 * bookmark name 2 -> { property 1, property 2, ... }
3497 zfs_ioc_get_bookmarks(const char *fsname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
3499 return (dsl_get_bookmarks(fsname
, innvl
, outnvl
));
3504 * bookmark name 1, bookmark name 2
3507 * outnvl: bookmark -> error code (int32)
3511 zfs_ioc_destroy_bookmarks(const char *poolname
, nvlist_t
*innvl
,
3517 poollen
= strlen(poolname
);
3518 for (pair
= nvlist_next_nvpair(innvl
, NULL
);
3519 pair
!= NULL
; pair
= nvlist_next_nvpair(innvl
, pair
)) {
3520 const char *name
= nvpair_name(pair
);
3521 const char *cp
= strchr(name
, '#');
3524 * The bookmark name must contain an #, and the part after it
3525 * must contain only valid characters.
3528 zfs_component_namecheck(cp
+ 1, NULL
, NULL
) != 0)
3529 return (SET_ERROR(EINVAL
));
3532 * The bookmark must be in the specified pool.
3534 if (strncmp(name
, poolname
, poollen
) != 0 ||
3535 (name
[poollen
] != '/' && name
[poollen
] != '#'))
3536 return (SET_ERROR(EXDEV
));
3539 error
= dsl_bookmark_destroy(innvl
, outnvl
);
3545 * zc_name name of dataset to destroy
3546 * zc_objset_type type of objset
3547 * zc_defer_destroy mark for deferred destroy
3552 zfs_ioc_destroy(zfs_cmd_t
*zc
)
3556 if (zc
->zc_objset_type
== DMU_OST_ZFS
) {
3557 err
= zfs_unmount_snap(zc
->zc_name
);
3562 if (strchr(zc
->zc_name
, '@'))
3563 err
= dsl_destroy_snapshot(zc
->zc_name
, zc
->zc_defer_destroy
);
3565 err
= dsl_destroy_head(zc
->zc_name
);
3571 * fsname is name of dataset to rollback (to most recent snapshot)
3573 * innvl is not used.
3575 * outnvl: "target" -> name of most recent snapshot
3580 zfs_ioc_rollback(const char *fsname
, nvlist_t
*args
, nvlist_t
*outnvl
)
3585 if (get_zfs_sb(fsname
, &zsb
) == 0) {
3586 error
= zfs_suspend_fs(zsb
);
3590 error
= dsl_dataset_rollback(fsname
, zsb
, outnvl
);
3591 resume_err
= zfs_resume_fs(zsb
, fsname
);
3592 error
= error
? error
: resume_err
;
3594 deactivate_super(zsb
->z_sb
);
3596 error
= dsl_dataset_rollback(fsname
, NULL
, outnvl
);
3602 recursive_unmount(const char *fsname
, void *arg
)
3604 const char *snapname
= arg
;
3608 fullname
= kmem_asprintf("%s@%s", fsname
, snapname
);
3609 error
= zfs_unmount_snap(fullname
);
3617 * zc_name old name of dataset
3618 * zc_value new name of dataset
3619 * zc_cookie recursive flag (only valid for snapshots)
3624 zfs_ioc_rename(zfs_cmd_t
*zc
)
3626 boolean_t recursive
= zc
->zc_cookie
& 1;
3629 zc
->zc_value
[sizeof (zc
->zc_value
) - 1] = '\0';
3630 if (dataset_namecheck(zc
->zc_value
, NULL
, NULL
) != 0 ||
3631 strchr(zc
->zc_value
, '%'))
3632 return (SET_ERROR(EINVAL
));
3634 at
= strchr(zc
->zc_name
, '@');
3636 /* snaps must be in same fs */
3639 if (strncmp(zc
->zc_name
, zc
->zc_value
, at
- zc
->zc_name
+ 1))
3640 return (SET_ERROR(EXDEV
));
3642 if (zc
->zc_objset_type
== DMU_OST_ZFS
) {
3643 error
= dmu_objset_find(zc
->zc_name
,
3644 recursive_unmount
, at
+ 1,
3645 recursive
? DS_FIND_CHILDREN
: 0);
3651 error
= dsl_dataset_rename_snapshot(zc
->zc_name
,
3652 at
+ 1, strchr(zc
->zc_value
, '@') + 1, recursive
);
3657 return (dsl_dir_rename(zc
->zc_name
, zc
->zc_value
));
3662 zfs_check_settable(const char *dsname
, nvpair_t
*pair
, cred_t
*cr
)
3664 const char *propname
= nvpair_name(pair
);
3665 boolean_t issnap
= (strchr(dsname
, '@') != NULL
);
3666 zfs_prop_t prop
= zfs_name_to_prop(propname
);
3670 if (prop
== ZPROP_INVAL
) {
3671 if (zfs_prop_user(propname
)) {
3672 if ((err
= zfs_secpolicy_write_perms(dsname
,
3673 ZFS_DELEG_PERM_USERPROP
, cr
)))
3678 if (!issnap
&& zfs_prop_userquota(propname
)) {
3679 const char *perm
= NULL
;
3680 const char *uq_prefix
=
3681 zfs_userquota_prop_prefixes
[ZFS_PROP_USERQUOTA
];
3682 const char *gq_prefix
=
3683 zfs_userquota_prop_prefixes
[ZFS_PROP_GROUPQUOTA
];
3685 if (strncmp(propname
, uq_prefix
,
3686 strlen(uq_prefix
)) == 0) {
3687 perm
= ZFS_DELEG_PERM_USERQUOTA
;
3688 } else if (strncmp(propname
, gq_prefix
,
3689 strlen(gq_prefix
)) == 0) {
3690 perm
= ZFS_DELEG_PERM_GROUPQUOTA
;
3692 /* USERUSED and GROUPUSED are read-only */
3693 return (SET_ERROR(EINVAL
));
3696 if ((err
= zfs_secpolicy_write_perms(dsname
, perm
, cr
)))
3701 return (SET_ERROR(EINVAL
));
3705 return (SET_ERROR(EINVAL
));
3707 if (nvpair_type(pair
) == DATA_TYPE_NVLIST
) {
3709 * dsl_prop_get_all_impl() returns properties in this
3713 VERIFY(nvpair_value_nvlist(pair
, &attrs
) == 0);
3714 VERIFY(nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
3719 * Check that this value is valid for this pool version
3722 case ZFS_PROP_COMPRESSION
:
3724 * If the user specified gzip compression, make sure
3725 * the SPA supports it. We ignore any errors here since
3726 * we'll catch them later.
3728 if (nvpair_value_uint64(pair
, &intval
) == 0) {
3729 if (intval
>= ZIO_COMPRESS_GZIP_1
&&
3730 intval
<= ZIO_COMPRESS_GZIP_9
&&
3731 zfs_earlier_version(dsname
,
3732 SPA_VERSION_GZIP_COMPRESSION
)) {
3733 return (SET_ERROR(ENOTSUP
));
3736 if (intval
== ZIO_COMPRESS_ZLE
&&
3737 zfs_earlier_version(dsname
,
3738 SPA_VERSION_ZLE_COMPRESSION
))
3739 return (SET_ERROR(ENOTSUP
));
3741 if (intval
== ZIO_COMPRESS_LZ4
) {
3744 if ((err
= spa_open(dsname
, &spa
, FTAG
)) != 0)
3747 if (!spa_feature_is_enabled(spa
,
3748 SPA_FEATURE_LZ4_COMPRESS
)) {
3749 spa_close(spa
, FTAG
);
3750 return (SET_ERROR(ENOTSUP
));
3752 spa_close(spa
, FTAG
);
3756 * If this is a bootable dataset then
3757 * verify that the compression algorithm
3758 * is supported for booting. We must return
3759 * something other than ENOTSUP since it
3760 * implies a downrev pool version.
3762 if (zfs_is_bootfs(dsname
) &&
3763 !BOOTFS_COMPRESS_VALID(intval
)) {
3764 return (SET_ERROR(ERANGE
));
3769 case ZFS_PROP_COPIES
:
3770 if (zfs_earlier_version(dsname
, SPA_VERSION_DITTO_BLOCKS
))
3771 return (SET_ERROR(ENOTSUP
));
3774 case ZFS_PROP_DEDUP
:
3775 if (zfs_earlier_version(dsname
, SPA_VERSION_DEDUP
))
3776 return (SET_ERROR(ENOTSUP
));
3779 case ZFS_PROP_VOLBLOCKSIZE
:
3780 case ZFS_PROP_RECORDSIZE
:
3781 /* Record sizes above 128k need the feature to be enabled */
3782 if (nvpair_value_uint64(pair
, &intval
) == 0 &&
3783 intval
> SPA_OLD_MAXBLOCKSIZE
) {
3787 * If this is a bootable dataset then
3788 * the we don't allow large (>128K) blocks,
3789 * because GRUB doesn't support them.
3791 if (zfs_is_bootfs(dsname
) &&
3792 intval
> SPA_OLD_MAXBLOCKSIZE
) {
3793 return (SET_ERROR(ERANGE
));
3797 * We don't allow setting the property above 1MB,
3798 * unless the tunable has been changed.
3800 if (intval
> zfs_max_recordsize
||
3801 intval
> SPA_MAXBLOCKSIZE
)
3802 return (SET_ERROR(ERANGE
));
3804 if ((err
= spa_open(dsname
, &spa
, FTAG
)) != 0)
3807 if (!spa_feature_is_enabled(spa
,
3808 SPA_FEATURE_LARGE_BLOCKS
)) {
3809 spa_close(spa
, FTAG
);
3810 return (SET_ERROR(ENOTSUP
));
3812 spa_close(spa
, FTAG
);
3816 case ZFS_PROP_SHARESMB
:
3817 if (zpl_earlier_version(dsname
, ZPL_VERSION_FUID
))
3818 return (SET_ERROR(ENOTSUP
));
3821 case ZFS_PROP_ACLINHERIT
:
3822 if (nvpair_type(pair
) == DATA_TYPE_UINT64
&&
3823 nvpair_value_uint64(pair
, &intval
) == 0) {
3824 if (intval
== ZFS_ACL_PASSTHROUGH_X
&&
3825 zfs_earlier_version(dsname
,
3826 SPA_VERSION_PASSTHROUGH_X
))
3827 return (SET_ERROR(ENOTSUP
));
3834 return (zfs_secpolicy_setprop(dsname
, prop
, pair
, CRED()));
3838 * Removes properties from the given props list that fail permission checks
3839 * needed to clear them and to restore them in case of a receive error. For each
3840 * property, make sure we have both set and inherit permissions.
3842 * Returns the first error encountered if any permission checks fail. If the
3843 * caller provides a non-NULL errlist, it also gives the complete list of names
3844 * of all the properties that failed a permission check along with the
3845 * corresponding error numbers. The caller is responsible for freeing the
3848 * If every property checks out successfully, zero is returned and the list
3849 * pointed at by errlist is NULL.
3852 zfs_check_clearable(char *dataset
, nvlist_t
*props
, nvlist_t
**errlist
)
3855 nvpair_t
*pair
, *next_pair
;
3862 VERIFY(nvlist_alloc(&errors
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
3864 zc
= kmem_alloc(sizeof (zfs_cmd_t
), KM_SLEEP
);
3865 (void) strcpy(zc
->zc_name
, dataset
);
3866 pair
= nvlist_next_nvpair(props
, NULL
);
3867 while (pair
!= NULL
) {
3868 next_pair
= nvlist_next_nvpair(props
, pair
);
3870 (void) strcpy(zc
->zc_value
, nvpair_name(pair
));
3871 if ((err
= zfs_check_settable(dataset
, pair
, CRED())) != 0 ||
3872 (err
= zfs_secpolicy_inherit_prop(zc
, NULL
, CRED())) != 0) {
3873 VERIFY(nvlist_remove_nvpair(props
, pair
) == 0);
3874 VERIFY(nvlist_add_int32(errors
,
3875 zc
->zc_value
, err
) == 0);
3879 kmem_free(zc
, sizeof (zfs_cmd_t
));
3881 if ((pair
= nvlist_next_nvpair(errors
, NULL
)) == NULL
) {
3882 nvlist_free(errors
);
3885 VERIFY(nvpair_value_int32(pair
, &rv
) == 0);
3888 if (errlist
== NULL
)
3889 nvlist_free(errors
);
3897 propval_equals(nvpair_t
*p1
, nvpair_t
*p2
)
3899 if (nvpair_type(p1
) == DATA_TYPE_NVLIST
) {
3900 /* dsl_prop_get_all_impl() format */
3902 VERIFY(nvpair_value_nvlist(p1
, &attrs
) == 0);
3903 VERIFY(nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
3907 if (nvpair_type(p2
) == DATA_TYPE_NVLIST
) {
3909 VERIFY(nvpair_value_nvlist(p2
, &attrs
) == 0);
3910 VERIFY(nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
3914 if (nvpair_type(p1
) != nvpair_type(p2
))
3917 if (nvpair_type(p1
) == DATA_TYPE_STRING
) {
3918 char *valstr1
, *valstr2
;
3920 VERIFY(nvpair_value_string(p1
, (char **)&valstr1
) == 0);
3921 VERIFY(nvpair_value_string(p2
, (char **)&valstr2
) == 0);
3922 return (strcmp(valstr1
, valstr2
) == 0);
3924 uint64_t intval1
, intval2
;
3926 VERIFY(nvpair_value_uint64(p1
, &intval1
) == 0);
3927 VERIFY(nvpair_value_uint64(p2
, &intval2
) == 0);
3928 return (intval1
== intval2
);
3933 * Remove properties from props if they are not going to change (as determined
3934 * by comparison with origprops). Remove them from origprops as well, since we
3935 * do not need to clear or restore properties that won't change.
3938 props_reduce(nvlist_t
*props
, nvlist_t
*origprops
)
3940 nvpair_t
*pair
, *next_pair
;
3942 if (origprops
== NULL
)
3943 return; /* all props need to be received */
3945 pair
= nvlist_next_nvpair(props
, NULL
);
3946 while (pair
!= NULL
) {
3947 const char *propname
= nvpair_name(pair
);
3950 next_pair
= nvlist_next_nvpair(props
, pair
);
3952 if ((nvlist_lookup_nvpair(origprops
, propname
,
3953 &match
) != 0) || !propval_equals(pair
, match
))
3954 goto next
; /* need to set received value */
3956 /* don't clear the existing received value */
3957 (void) nvlist_remove_nvpair(origprops
, match
);
3958 /* don't bother receiving the property */
3959 (void) nvlist_remove_nvpair(props
, pair
);
3966 static boolean_t zfs_ioc_recv_inject_err
;
3971 * zc_name name of containing filesystem
3972 * zc_nvlist_src{_size} nvlist of properties to apply
3973 * zc_value name of snapshot to create
3974 * zc_string name of clone origin (if DRR_FLAG_CLONE)
3975 * zc_cookie file descriptor to recv from
3976 * zc_begin_record the BEGIN record of the stream (not byteswapped)
3977 * zc_guid force flag
3978 * zc_cleanup_fd cleanup-on-exit file descriptor
3979 * zc_action_handle handle for this guid/ds mapping (or zero on first call)
3982 * zc_cookie number of bytes read
3983 * zc_nvlist_dst{_size} error for each unapplied received property
3984 * zc_obj zprop_errflags_t
3985 * zc_action_handle handle for this guid/ds mapping
3988 zfs_ioc_recv(zfs_cmd_t
*zc
)
3991 dmu_recv_cookie_t drc
;
3992 boolean_t force
= (boolean_t
)zc
->zc_guid
;
3995 int props_error
= 0;
3998 nvlist_t
*props
= NULL
; /* sent properties */
3999 nvlist_t
*origprops
= NULL
; /* existing properties */
4000 char *origin
= NULL
;
4002 char tofs
[ZFS_MAXNAMELEN
];
4003 boolean_t first_recvd_props
= B_FALSE
;
4005 if (dataset_namecheck(zc
->zc_value
, NULL
, NULL
) != 0 ||
4006 strchr(zc
->zc_value
, '@') == NULL
||
4007 strchr(zc
->zc_value
, '%'))
4008 return (SET_ERROR(EINVAL
));
4010 (void) strcpy(tofs
, zc
->zc_value
);
4011 tosnap
= strchr(tofs
, '@');
4014 if (zc
->zc_nvlist_src
!= 0 &&
4015 (error
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
4016 zc
->zc_iflags
, &props
)) != 0)
4023 return (SET_ERROR(EBADF
));
4026 VERIFY(nvlist_alloc(&errors
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
4028 if (zc
->zc_string
[0])
4029 origin
= zc
->zc_string
;
4031 error
= dmu_recv_begin(tofs
, tosnap
,
4032 &zc
->zc_begin_record
, force
, origin
, &drc
);
4037 * Set properties before we receive the stream so that they are applied
4038 * to the new data. Note that we must call dmu_recv_stream() if
4039 * dmu_recv_begin() succeeds.
4041 if (props
!= NULL
&& !drc
.drc_newfs
) {
4042 if (spa_version(dsl_dataset_get_spa(drc
.drc_ds
)) >=
4043 SPA_VERSION_RECVD_PROPS
&&
4044 !dsl_prop_get_hasrecvd(tofs
))
4045 first_recvd_props
= B_TRUE
;
4048 * If new received properties are supplied, they are to
4049 * completely replace the existing received properties, so stash
4050 * away the existing ones.
4052 if (dsl_prop_get_received(tofs
, &origprops
) == 0) {
4053 nvlist_t
*errlist
= NULL
;
4055 * Don't bother writing a property if its value won't
4056 * change (and avoid the unnecessary security checks).
4058 * The first receive after SPA_VERSION_RECVD_PROPS is a
4059 * special case where we blow away all local properties
4062 if (!first_recvd_props
)
4063 props_reduce(props
, origprops
);
4064 if (zfs_check_clearable(tofs
, origprops
, &errlist
) != 0)
4065 (void) nvlist_merge(errors
, errlist
, 0);
4066 nvlist_free(errlist
);
4068 if (clear_received_props(tofs
, origprops
,
4069 first_recvd_props
? NULL
: props
) != 0)
4070 zc
->zc_obj
|= ZPROP_ERR_NOCLEAR
;
4072 zc
->zc_obj
|= ZPROP_ERR_NOCLEAR
;
4076 if (props
!= NULL
) {
4077 props_error
= dsl_prop_set_hasrecvd(tofs
);
4079 if (props_error
== 0) {
4080 (void) zfs_set_prop_nvlist(tofs
, ZPROP_SRC_RECEIVED
,
4085 if (zc
->zc_nvlist_dst_size
!= 0 &&
4086 (nvlist_smush(errors
, zc
->zc_nvlist_dst_size
) != 0 ||
4087 put_nvlist(zc
, errors
) != 0)) {
4089 * Caller made zc->zc_nvlist_dst less than the minimum expected
4090 * size or supplied an invalid address.
4092 props_error
= SET_ERROR(EINVAL
);
4096 error
= dmu_recv_stream(&drc
, fp
->f_vnode
, &off
, zc
->zc_cleanup_fd
,
4097 &zc
->zc_action_handle
);
4100 zfs_sb_t
*zsb
= NULL
;
4102 if (get_zfs_sb(tofs
, &zsb
) == 0) {
4106 error
= zfs_suspend_fs(zsb
);
4108 * If the suspend fails, then the recv_end will
4109 * likely also fail, and clean up after itself.
4111 end_err
= dmu_recv_end(&drc
, zsb
);
4113 error
= zfs_resume_fs(zsb
, tofs
);
4114 error
= error
? error
: end_err
;
4115 deactivate_super(zsb
->z_sb
);
4117 error
= dmu_recv_end(&drc
, NULL
);
4121 zc
->zc_cookie
= off
- fp
->f_offset
;
4122 if (VOP_SEEK(fp
->f_vnode
, fp
->f_offset
, &off
, NULL
) == 0)
4126 if (zfs_ioc_recv_inject_err
) {
4127 zfs_ioc_recv_inject_err
= B_FALSE
;
4133 * On error, restore the original props.
4135 if (error
!= 0 && props
!= NULL
&& !drc
.drc_newfs
) {
4136 if (clear_received_props(tofs
, props
, NULL
) != 0) {
4138 * We failed to clear the received properties.
4139 * Since we may have left a $recvd value on the
4140 * system, we can't clear the $hasrecvd flag.
4142 zc
->zc_obj
|= ZPROP_ERR_NORESTORE
;
4143 } else if (first_recvd_props
) {
4144 dsl_prop_unset_hasrecvd(tofs
);
4147 if (origprops
== NULL
&& !drc
.drc_newfs
) {
4148 /* We failed to stash the original properties. */
4149 zc
->zc_obj
|= ZPROP_ERR_NORESTORE
;
4153 * dsl_props_set() will not convert RECEIVED to LOCAL on or
4154 * after SPA_VERSION_RECVD_PROPS, so we need to specify LOCAL
4155 * explictly if we're restoring local properties cleared in the
4156 * first new-style receive.
4158 if (origprops
!= NULL
&&
4159 zfs_set_prop_nvlist(tofs
, (first_recvd_props
?
4160 ZPROP_SRC_LOCAL
: ZPROP_SRC_RECEIVED
),
4161 origprops
, NULL
) != 0) {
4163 * We stashed the original properties but failed to
4166 zc
->zc_obj
|= ZPROP_ERR_NORESTORE
;
4171 nvlist_free(origprops
);
4172 nvlist_free(errors
);
4176 error
= props_error
;
4183 * zc_name name of snapshot to send
4184 * zc_cookie file descriptor to send stream to
4185 * zc_obj fromorigin flag (mutually exclusive with zc_fromobj)
4186 * zc_sendobj objsetid of snapshot to send
4187 * zc_fromobj objsetid of incremental fromsnap (may be zero)
4188 * zc_guid if set, estimate size of stream only. zc_cookie is ignored.
4189 * output size in zc_objset_type.
4190 * zc_flags lzc_send_flags
4193 * zc_objset_type estimated size, if zc_guid is set
4196 zfs_ioc_send(zfs_cmd_t
*zc
)
4200 boolean_t estimate
= (zc
->zc_guid
!= 0);
4201 boolean_t embedok
= (zc
->zc_flags
& 0x1);
4202 boolean_t large_block_ok
= (zc
->zc_flags
& 0x2);
4204 if (zc
->zc_obj
!= 0) {
4206 dsl_dataset_t
*tosnap
;
4208 error
= dsl_pool_hold(zc
->zc_name
, FTAG
, &dp
);
4212 error
= dsl_dataset_hold_obj(dp
, zc
->zc_sendobj
, FTAG
, &tosnap
);
4214 dsl_pool_rele(dp
, FTAG
);
4218 if (dsl_dir_is_clone(tosnap
->ds_dir
))
4220 dsl_dir_phys(tosnap
->ds_dir
)->dd_origin_obj
;
4221 dsl_dataset_rele(tosnap
, FTAG
);
4222 dsl_pool_rele(dp
, FTAG
);
4227 dsl_dataset_t
*tosnap
;
4228 dsl_dataset_t
*fromsnap
= NULL
;
4230 error
= dsl_pool_hold(zc
->zc_name
, FTAG
, &dp
);
4234 error
= dsl_dataset_hold_obj(dp
, zc
->zc_sendobj
, FTAG
, &tosnap
);
4236 dsl_pool_rele(dp
, FTAG
);
4240 if (zc
->zc_fromobj
!= 0) {
4241 error
= dsl_dataset_hold_obj(dp
, zc
->zc_fromobj
,
4244 dsl_dataset_rele(tosnap
, FTAG
);
4245 dsl_pool_rele(dp
, FTAG
);
4250 error
= dmu_send_estimate(tosnap
, fromsnap
,
4251 &zc
->zc_objset_type
);
4253 if (fromsnap
!= NULL
)
4254 dsl_dataset_rele(fromsnap
, FTAG
);
4255 dsl_dataset_rele(tosnap
, FTAG
);
4256 dsl_pool_rele(dp
, FTAG
);
4258 file_t
*fp
= getf(zc
->zc_cookie
);
4260 return (SET_ERROR(EBADF
));
4263 error
= dmu_send_obj(zc
->zc_name
, zc
->zc_sendobj
,
4264 zc
->zc_fromobj
, embedok
, large_block_ok
,
4265 zc
->zc_cookie
, fp
->f_vnode
, &off
);
4267 if (VOP_SEEK(fp
->f_vnode
, fp
->f_offset
, &off
, NULL
) == 0)
4269 releasef(zc
->zc_cookie
);
4276 * zc_name name of snapshot on which to report progress
4277 * zc_cookie file descriptor of send stream
4280 * zc_cookie number of bytes written in send stream thus far
4283 zfs_ioc_send_progress(zfs_cmd_t
*zc
)
4287 dmu_sendarg_t
*dsp
= NULL
;
4290 error
= dsl_pool_hold(zc
->zc_name
, FTAG
, &dp
);
4294 error
= dsl_dataset_hold(dp
, zc
->zc_name
, FTAG
, &ds
);
4296 dsl_pool_rele(dp
, FTAG
);
4300 mutex_enter(&ds
->ds_sendstream_lock
);
4303 * Iterate over all the send streams currently active on this dataset.
4304 * If there's one which matches the specified file descriptor _and_ the
4305 * stream was started by the current process, return the progress of
4309 for (dsp
= list_head(&ds
->ds_sendstreams
); dsp
!= NULL
;
4310 dsp
= list_next(&ds
->ds_sendstreams
, dsp
)) {
4311 if (dsp
->dsa_outfd
== zc
->zc_cookie
&&
4312 dsp
->dsa_proc
->group_leader
== curproc
->group_leader
)
4317 zc
->zc_cookie
= *(dsp
->dsa_off
);
4319 error
= SET_ERROR(ENOENT
);
4321 mutex_exit(&ds
->ds_sendstream_lock
);
4322 dsl_dataset_rele(ds
, FTAG
);
4323 dsl_pool_rele(dp
, FTAG
);
4328 zfs_ioc_inject_fault(zfs_cmd_t
*zc
)
4332 error
= zio_inject_fault(zc
->zc_name
, (int)zc
->zc_guid
, &id
,
4333 &zc
->zc_inject_record
);
4336 zc
->zc_guid
= (uint64_t)id
;
4342 zfs_ioc_clear_fault(zfs_cmd_t
*zc
)
4344 return (zio_clear_fault((int)zc
->zc_guid
));
4348 zfs_ioc_inject_list_next(zfs_cmd_t
*zc
)
4350 int id
= (int)zc
->zc_guid
;
4353 error
= zio_inject_list_next(&id
, zc
->zc_name
, sizeof (zc
->zc_name
),
4354 &zc
->zc_inject_record
);
4362 zfs_ioc_error_log(zfs_cmd_t
*zc
)
4366 size_t count
= (size_t)zc
->zc_nvlist_dst_size
;
4368 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
4371 error
= spa_get_errlog(spa
, (void *)(uintptr_t)zc
->zc_nvlist_dst
,
4374 zc
->zc_nvlist_dst_size
= count
;
4376 zc
->zc_nvlist_dst_size
= spa_get_errlog_size(spa
);
4378 spa_close(spa
, FTAG
);
4384 zfs_ioc_clear(zfs_cmd_t
*zc
)
4391 * On zpool clear we also fix up missing slogs
4393 mutex_enter(&spa_namespace_lock
);
4394 spa
= spa_lookup(zc
->zc_name
);
4396 mutex_exit(&spa_namespace_lock
);
4397 return (SET_ERROR(EIO
));
4399 if (spa_get_log_state(spa
) == SPA_LOG_MISSING
) {
4400 /* we need to let spa_open/spa_load clear the chains */
4401 spa_set_log_state(spa
, SPA_LOG_CLEAR
);
4403 spa
->spa_last_open_failed
= 0;
4404 mutex_exit(&spa_namespace_lock
);
4406 if (zc
->zc_cookie
& ZPOOL_NO_REWIND
) {
4407 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
4410 nvlist_t
*config
= NULL
;
4412 if (zc
->zc_nvlist_src
== 0)
4413 return (SET_ERROR(EINVAL
));
4415 if ((error
= get_nvlist(zc
->zc_nvlist_src
,
4416 zc
->zc_nvlist_src_size
, zc
->zc_iflags
, &policy
)) == 0) {
4417 error
= spa_open_rewind(zc
->zc_name
, &spa
, FTAG
,
4419 if (config
!= NULL
) {
4422 if ((err
= put_nvlist(zc
, config
)) != 0)
4424 nvlist_free(config
);
4426 nvlist_free(policy
);
4433 spa_vdev_state_enter(spa
, SCL_NONE
);
4435 if (zc
->zc_guid
== 0) {
4438 vd
= spa_lookup_by_guid(spa
, zc
->zc_guid
, B_TRUE
);
4440 (void) spa_vdev_state_exit(spa
, NULL
, ENODEV
);
4441 spa_close(spa
, FTAG
);
4442 return (SET_ERROR(ENODEV
));
4446 vdev_clear(spa
, vd
);
4448 (void) spa_vdev_state_exit(spa
, NULL
, 0);
4451 * Resume any suspended I/Os.
4453 if (zio_resume(spa
) != 0)
4454 error
= SET_ERROR(EIO
);
4456 spa_close(spa
, FTAG
);
4462 zfs_ioc_pool_reopen(zfs_cmd_t
*zc
)
4467 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
4471 spa_vdev_state_enter(spa
, SCL_NONE
);
4474 * If a resilver is already in progress then set the
4475 * spa_scrub_reopen flag to B_TRUE so that we don't restart
4476 * the scan as a side effect of the reopen. Otherwise, let
4477 * vdev_open() decided if a resilver is required.
4479 spa
->spa_scrub_reopen
= dsl_scan_resilvering(spa
->spa_dsl_pool
);
4480 vdev_reopen(spa
->spa_root_vdev
);
4481 spa
->spa_scrub_reopen
= B_FALSE
;
4483 (void) spa_vdev_state_exit(spa
, NULL
, 0);
4484 spa_close(spa
, FTAG
);
4489 * zc_name name of filesystem
4490 * zc_value name of origin snapshot
4493 * zc_string name of conflicting snapshot, if there is one
4496 zfs_ioc_promote(zfs_cmd_t
*zc
)
4501 * We don't need to unmount *all* the origin fs's snapshots, but
4504 cp
= strchr(zc
->zc_value
, '@');
4507 (void) dmu_objset_find(zc
->zc_value
,
4508 zfs_unmount_snap_cb
, NULL
, DS_FIND_SNAPSHOTS
);
4509 return (dsl_dataset_promote(zc
->zc_name
, zc
->zc_string
));
4513 * Retrieve a single {user|group}{used|quota}@... property.
4516 * zc_name name of filesystem
4517 * zc_objset_type zfs_userquota_prop_t
4518 * zc_value domain name (eg. "S-1-234-567-89")
4519 * zc_guid RID/UID/GID
4522 * zc_cookie property value
4525 zfs_ioc_userspace_one(zfs_cmd_t
*zc
)
4530 if (zc
->zc_objset_type
>= ZFS_NUM_USERQUOTA_PROPS
)
4531 return (SET_ERROR(EINVAL
));
4533 error
= zfs_sb_hold(zc
->zc_name
, FTAG
, &zsb
, B_FALSE
);
4537 error
= zfs_userspace_one(zsb
,
4538 zc
->zc_objset_type
, zc
->zc_value
, zc
->zc_guid
, &zc
->zc_cookie
);
4539 zfs_sb_rele(zsb
, FTAG
);
4546 * zc_name name of filesystem
4547 * zc_cookie zap cursor
4548 * zc_objset_type zfs_userquota_prop_t
4549 * zc_nvlist_dst[_size] buffer to fill (not really an nvlist)
4552 * zc_nvlist_dst[_size] data buffer (array of zfs_useracct_t)
4553 * zc_cookie zap cursor
4556 zfs_ioc_userspace_many(zfs_cmd_t
*zc
)
4559 int bufsize
= zc
->zc_nvlist_dst_size
;
4564 return (SET_ERROR(ENOMEM
));
4566 error
= zfs_sb_hold(zc
->zc_name
, FTAG
, &zsb
, B_FALSE
);
4570 buf
= vmem_alloc(bufsize
, KM_SLEEP
);
4572 error
= zfs_userspace_many(zsb
, zc
->zc_objset_type
, &zc
->zc_cookie
,
4573 buf
, &zc
->zc_nvlist_dst_size
);
4576 error
= xcopyout(buf
,
4577 (void *)(uintptr_t)zc
->zc_nvlist_dst
,
4578 zc
->zc_nvlist_dst_size
);
4580 vmem_free(buf
, bufsize
);
4581 zfs_sb_rele(zsb
, FTAG
);
4588 * zc_name name of filesystem
4594 zfs_ioc_userspace_upgrade(zfs_cmd_t
*zc
)
4600 if (get_zfs_sb(zc
->zc_name
, &zsb
) == 0) {
4601 if (!dmu_objset_userused_enabled(zsb
->z_os
)) {
4603 * If userused is not enabled, it may be because the
4604 * objset needs to be closed & reopened (to grow the
4605 * objset_phys_t). Suspend/resume the fs will do that.
4607 error
= zfs_suspend_fs(zsb
);
4609 dmu_objset_refresh_ownership(zsb
->z_os
,
4611 error
= zfs_resume_fs(zsb
, zc
->zc_name
);
4615 error
= dmu_objset_userspace_upgrade(zsb
->z_os
);
4616 deactivate_super(zsb
->z_sb
);
4618 /* XXX kind of reading contents without owning */
4619 error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
);
4623 error
= dmu_objset_userspace_upgrade(os
);
4624 dmu_objset_rele(os
, FTAG
);
4631 zfs_ioc_share(zfs_cmd_t
*zc
)
4633 return (SET_ERROR(ENOSYS
));
4636 ace_t full_access
[] = {
4637 {(uid_t
)-1, ACE_ALL_PERMS
, ACE_EVERYONE
, 0}
4642 * zc_name name of containing filesystem
4643 * zc_obj object # beyond which we want next in-use object #
4646 * zc_obj next in-use object #
4649 zfs_ioc_next_obj(zfs_cmd_t
*zc
)
4651 objset_t
*os
= NULL
;
4654 error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
);
4658 error
= dmu_object_next(os
, &zc
->zc_obj
, B_FALSE
, 0);
4660 dmu_objset_rele(os
, FTAG
);
4666 * zc_name name of filesystem
4667 * zc_value prefix name for snapshot
4668 * zc_cleanup_fd cleanup-on-exit file descriptor for calling process
4671 * zc_value short name of new snapshot
4674 zfs_ioc_tmp_snapshot(zfs_cmd_t
*zc
)
4681 error
= zfs_onexit_fd_hold(zc
->zc_cleanup_fd
, &minor
);
4685 snap_name
= kmem_asprintf("%s-%016llx", zc
->zc_value
,
4686 (u_longlong_t
)ddi_get_lbolt64());
4687 hold_name
= kmem_asprintf("%%%s", zc
->zc_value
);
4689 error
= dsl_dataset_snapshot_tmp(zc
->zc_name
, snap_name
, minor
,
4692 (void) strcpy(zc
->zc_value
, snap_name
);
4695 zfs_onexit_fd_rele(zc
->zc_cleanup_fd
);
4701 * zc_name name of "to" snapshot
4702 * zc_value name of "from" snapshot
4703 * zc_cookie file descriptor to write diff data on
4706 * dmu_diff_record_t's to the file descriptor
4709 zfs_ioc_diff(zfs_cmd_t
*zc
)
4715 fp
= getf(zc
->zc_cookie
);
4717 return (SET_ERROR(EBADF
));
4721 error
= dmu_diff(zc
->zc_name
, zc
->zc_value
, fp
->f_vnode
, &off
);
4723 if (VOP_SEEK(fp
->f_vnode
, fp
->f_offset
, &off
, NULL
) == 0)
4725 releasef(zc
->zc_cookie
);
4731 * Remove all ACL files in shares dir
4733 #ifdef HAVE_SMB_SHARE
4735 zfs_smb_acl_purge(znode_t
*dzp
)
4738 zap_attribute_t zap
;
4739 zfs_sb_t
*zsb
= ZTOZSB(dzp
);
4742 for (zap_cursor_init(&zc
, zsb
->z_os
, dzp
->z_id
);
4743 (error
= zap_cursor_retrieve(&zc
, &zap
)) == 0;
4744 zap_cursor_advance(&zc
)) {
4745 if ((error
= VOP_REMOVE(ZTOV(dzp
), zap
.za_name
, kcred
,
4749 zap_cursor_fini(&zc
);
4752 #endif /* HAVE_SMB_SHARE */
4755 zfs_ioc_smb_acl(zfs_cmd_t
*zc
)
4757 #ifdef HAVE_SMB_SHARE
4760 vnode_t
*resourcevp
= NULL
;
4769 if ((error
= lookupname(zc
->zc_value
, UIO_SYSSPACE
,
4770 NO_FOLLOW
, NULL
, &vp
)) != 0)
4773 /* Now make sure mntpnt and dataset are ZFS */
4775 if (vp
->v_vfsp
->vfs_fstype
!= zfsfstype
||
4776 (strcmp((char *)refstr_value(vp
->v_vfsp
->vfs_resource
),
4777 zc
->zc_name
) != 0)) {
4779 return (SET_ERROR(EINVAL
));
4787 * Create share dir if its missing.
4789 mutex_enter(&zsb
->z_lock
);
4790 if (zsb
->z_shares_dir
== 0) {
4793 tx
= dmu_tx_create(zsb
->z_os
);
4794 dmu_tx_hold_zap(tx
, MASTER_NODE_OBJ
, TRUE
,
4796 dmu_tx_hold_zap(tx
, DMU_NEW_OBJECT
, FALSE
, NULL
);
4797 error
= dmu_tx_assign(tx
, TXG_WAIT
);
4801 error
= zfs_create_share_dir(zsb
, tx
);
4805 mutex_exit(&zsb
->z_lock
);
4811 mutex_exit(&zsb
->z_lock
);
4813 ASSERT(zsb
->z_shares_dir
);
4814 if ((error
= zfs_zget(zsb
, zsb
->z_shares_dir
, &sharedir
)) != 0) {
4820 switch (zc
->zc_cookie
) {
4821 case ZFS_SMB_ACL_ADD
:
4822 vattr
.va_mask
= AT_MODE
|AT_UID
|AT_GID
|AT_TYPE
;
4823 vattr
.va_mode
= S_IFREG
|0777;
4827 vsec
.vsa_mask
= VSA_ACE
;
4828 vsec
.vsa_aclentp
= &full_access
;
4829 vsec
.vsa_aclentsz
= sizeof (full_access
);
4830 vsec
.vsa_aclcnt
= 1;
4832 error
= VOP_CREATE(ZTOV(sharedir
), zc
->zc_string
,
4833 &vattr
, EXCL
, 0, &resourcevp
, kcred
, 0, NULL
, &vsec
);
4835 VN_RELE(resourcevp
);
4838 case ZFS_SMB_ACL_REMOVE
:
4839 error
= VOP_REMOVE(ZTOV(sharedir
), zc
->zc_string
, kcred
,
4843 case ZFS_SMB_ACL_RENAME
:
4844 if ((error
= get_nvlist(zc
->zc_nvlist_src
,
4845 zc
->zc_nvlist_src_size
, zc
->zc_iflags
, &nvlist
)) != 0) {
4847 VN_RELE(ZTOV(sharedir
));
4851 if (nvlist_lookup_string(nvlist
, ZFS_SMB_ACL_SRC
, &src
) ||
4852 nvlist_lookup_string(nvlist
, ZFS_SMB_ACL_TARGET
,
4855 VN_RELE(ZTOV(sharedir
));
4857 nvlist_free(nvlist
);
4860 error
= VOP_RENAME(ZTOV(sharedir
), src
, ZTOV(sharedir
), target
,
4862 nvlist_free(nvlist
);
4865 case ZFS_SMB_ACL_PURGE
:
4866 error
= zfs_smb_acl_purge(sharedir
);
4870 error
= SET_ERROR(EINVAL
);
4875 VN_RELE(ZTOV(sharedir
));
4881 return (SET_ERROR(ENOTSUP
));
4882 #endif /* HAVE_SMB_SHARE */
4887 * "holds" -> { snapname -> holdname (string), ... }
4888 * (optional) "cleanup_fd" -> fd (int32)
4892 * snapname -> error value (int32)
4898 zfs_ioc_hold(const char *pool
, nvlist_t
*args
, nvlist_t
*errlist
)
4902 int cleanup_fd
= -1;
4906 error
= nvlist_lookup_nvlist(args
, "holds", &holds
);
4908 return (SET_ERROR(EINVAL
));
4910 /* make sure the user didn't pass us any invalid (empty) tags */
4911 for (pair
= nvlist_next_nvpair(holds
, NULL
); pair
!= NULL
;
4912 pair
= nvlist_next_nvpair(holds
, pair
)) {
4915 error
= nvpair_value_string(pair
, &htag
);
4917 return (SET_ERROR(error
));
4919 if (strlen(htag
) == 0)
4920 return (SET_ERROR(EINVAL
));
4923 if (nvlist_lookup_int32(args
, "cleanup_fd", &cleanup_fd
) == 0) {
4924 error
= zfs_onexit_fd_hold(cleanup_fd
, &minor
);
4929 error
= dsl_dataset_user_hold(holds
, minor
, errlist
);
4931 zfs_onexit_fd_rele(cleanup_fd
);
4936 * innvl is not used.
4939 * holdname -> time added (uint64 seconds since epoch)
4945 zfs_ioc_get_holds(const char *snapname
, nvlist_t
*args
, nvlist_t
*outnvl
)
4947 return (dsl_dataset_get_holds(snapname
, outnvl
));
4952 * snapname -> { holdname, ... }
4957 * snapname -> error value (int32)
4963 zfs_ioc_release(const char *pool
, nvlist_t
*holds
, nvlist_t
*errlist
)
4965 return (dsl_dataset_user_release(holds
, errlist
));
4970 * zc_guid flags (ZEVENT_NONBLOCK)
4971 * zc_cleanup_fd zevent file descriptor
4974 * zc_nvlist_dst next nvlist event
4975 * zc_cookie dropped events since last get
4978 zfs_ioc_events_next(zfs_cmd_t
*zc
)
4981 nvlist_t
*event
= NULL
;
4983 uint64_t dropped
= 0;
4986 error
= zfs_zevent_fd_hold(zc
->zc_cleanup_fd
, &minor
, &ze
);
4991 error
= zfs_zevent_next(ze
, &event
,
4992 &zc
->zc_nvlist_dst_size
, &dropped
);
4993 if (event
!= NULL
) {
4994 zc
->zc_cookie
= dropped
;
4995 error
= put_nvlist(zc
, event
);
4999 if (zc
->zc_guid
& ZEVENT_NONBLOCK
)
5002 if ((error
== 0) || (error
!= ENOENT
))
5005 error
= zfs_zevent_wait(ze
);
5010 zfs_zevent_fd_rele(zc
->zc_cleanup_fd
);
5017 * zc_cookie cleared events count
5020 zfs_ioc_events_clear(zfs_cmd_t
*zc
)
5024 zfs_zevent_drain_all(&count
);
5025 zc
->zc_cookie
= count
;
5032 * zc_guid eid | ZEVENT_SEEK_START | ZEVENT_SEEK_END
5033 * zc_cleanup zevent file descriptor
5036 zfs_ioc_events_seek(zfs_cmd_t
*zc
)
5042 error
= zfs_zevent_fd_hold(zc
->zc_cleanup_fd
, &minor
, &ze
);
5046 error
= zfs_zevent_seek(ze
, zc
->zc_guid
);
5047 zfs_zevent_fd_rele(zc
->zc_cleanup_fd
);
5054 * zc_name name of new filesystem or snapshot
5055 * zc_value full name of old snapshot
5058 * zc_cookie space in bytes
5059 * zc_objset_type compressed space in bytes
5060 * zc_perm_action uncompressed space in bytes
5063 zfs_ioc_space_written(zfs_cmd_t
*zc
)
5067 dsl_dataset_t
*new, *old
;
5069 error
= dsl_pool_hold(zc
->zc_name
, FTAG
, &dp
);
5072 error
= dsl_dataset_hold(dp
, zc
->zc_name
, FTAG
, &new);
5074 dsl_pool_rele(dp
, FTAG
);
5077 error
= dsl_dataset_hold(dp
, zc
->zc_value
, FTAG
, &old
);
5079 dsl_dataset_rele(new, FTAG
);
5080 dsl_pool_rele(dp
, FTAG
);
5084 error
= dsl_dataset_space_written(old
, new, &zc
->zc_cookie
,
5085 &zc
->zc_objset_type
, &zc
->zc_perm_action
);
5086 dsl_dataset_rele(old
, FTAG
);
5087 dsl_dataset_rele(new, FTAG
);
5088 dsl_pool_rele(dp
, FTAG
);
5094 * "firstsnap" -> snapshot name
5098 * "used" -> space in bytes
5099 * "compressed" -> compressed space in bytes
5100 * "uncompressed" -> uncompressed space in bytes
5104 zfs_ioc_space_snaps(const char *lastsnap
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
5108 dsl_dataset_t
*new, *old
;
5110 uint64_t used
, comp
, uncomp
;
5112 if (nvlist_lookup_string(innvl
, "firstsnap", &firstsnap
) != 0)
5113 return (SET_ERROR(EINVAL
));
5115 error
= dsl_pool_hold(lastsnap
, FTAG
, &dp
);
5119 error
= dsl_dataset_hold(dp
, lastsnap
, FTAG
, &new);
5120 if (error
== 0 && !new->ds_is_snapshot
) {
5121 dsl_dataset_rele(new, FTAG
);
5122 error
= SET_ERROR(EINVAL
);
5125 dsl_pool_rele(dp
, FTAG
);
5128 error
= dsl_dataset_hold(dp
, firstsnap
, FTAG
, &old
);
5129 if (error
== 0 && !old
->ds_is_snapshot
) {
5130 dsl_dataset_rele(old
, FTAG
);
5131 error
= SET_ERROR(EINVAL
);
5134 dsl_dataset_rele(new, FTAG
);
5135 dsl_pool_rele(dp
, FTAG
);
5139 error
= dsl_dataset_space_wouldfree(old
, new, &used
, &comp
, &uncomp
);
5140 dsl_dataset_rele(old
, FTAG
);
5141 dsl_dataset_rele(new, FTAG
);
5142 dsl_pool_rele(dp
, FTAG
);
5143 fnvlist_add_uint64(outnvl
, "used", used
);
5144 fnvlist_add_uint64(outnvl
, "compressed", comp
);
5145 fnvlist_add_uint64(outnvl
, "uncompressed", uncomp
);
5151 * "fd" -> file descriptor to write stream to (int32)
5152 * (optional) "fromsnap" -> full snap name to send an incremental from
5153 * (optional) "largeblockok" -> (value ignored)
5154 * indicates that blocks > 128KB are permitted
5155 * (optional) "embedok" -> (value ignored)
5156 * presence indicates DRR_WRITE_EMBEDDED records are permitted
5163 zfs_ioc_send_new(const char *snapname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
5167 char *fromname
= NULL
;
5170 boolean_t largeblockok
;
5173 error
= nvlist_lookup_int32(innvl
, "fd", &fd
);
5175 return (SET_ERROR(EINVAL
));
5177 (void) nvlist_lookup_string(innvl
, "fromsnap", &fromname
);
5179 largeblockok
= nvlist_exists(innvl
, "largeblockok");
5180 embedok
= nvlist_exists(innvl
, "embedok");
5182 if ((fp
= getf(fd
)) == NULL
)
5183 return (SET_ERROR(EBADF
));
5186 error
= dmu_send(snapname
, fromname
, embedok
, largeblockok
,
5187 fd
, fp
->f_vnode
, &off
);
5189 if (VOP_SEEK(fp
->f_vnode
, fp
->f_offset
, &off
, NULL
) == 0)
5197 * Determine approximately how large a zfs send stream will be -- the number
5198 * of bytes that will be written to the fd supplied to zfs_ioc_send_new().
5201 * (optional) "from" -> full snap or bookmark name to send an incremental
5206 * "space" -> bytes of space (uint64)
5210 zfs_ioc_send_space(const char *snapname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
5213 dsl_dataset_t
*tosnap
;
5218 error
= dsl_pool_hold(snapname
, FTAG
, &dp
);
5222 error
= dsl_dataset_hold(dp
, snapname
, FTAG
, &tosnap
);
5224 dsl_pool_rele(dp
, FTAG
);
5228 error
= nvlist_lookup_string(innvl
, "from", &fromname
);
5230 if (strchr(fromname
, '@') != NULL
) {
5232 * If from is a snapshot, hold it and use the more
5233 * efficient dmu_send_estimate to estimate send space
5234 * size using deadlists.
5236 dsl_dataset_t
*fromsnap
;
5237 error
= dsl_dataset_hold(dp
, fromname
, FTAG
, &fromsnap
);
5240 error
= dmu_send_estimate(tosnap
, fromsnap
, &space
);
5241 dsl_dataset_rele(fromsnap
, FTAG
);
5242 } else if (strchr(fromname
, '#') != NULL
) {
5244 * If from is a bookmark, fetch the creation TXG of the
5245 * snapshot it was created from and use that to find
5246 * blocks that were born after it.
5248 zfs_bookmark_phys_t frombm
;
5250 error
= dsl_bookmark_lookup(dp
, fromname
, tosnap
,
5254 error
= dmu_send_estimate_from_txg(tosnap
,
5255 frombm
.zbm_creation_txg
, &space
);
5258 * from is not properly formatted as a snapshot or
5261 error
= SET_ERROR(EINVAL
);
5265 // If estimating the size of a full send, use dmu_send_estimate
5266 error
= dmu_send_estimate(tosnap
, NULL
, &space
);
5269 fnvlist_add_uint64(outnvl
, "space", space
);
5272 dsl_dataset_rele(tosnap
, FTAG
);
5273 dsl_pool_rele(dp
, FTAG
);
5277 static zfs_ioc_vec_t zfs_ioc_vec
[ZFS_IOC_LAST
- ZFS_IOC_FIRST
];
5280 zfs_ioctl_register_legacy(zfs_ioc_t ioc
, zfs_ioc_legacy_func_t
*func
,
5281 zfs_secpolicy_func_t
*secpolicy
, zfs_ioc_namecheck_t namecheck
,
5282 boolean_t log_history
, zfs_ioc_poolcheck_t pool_check
)
5284 zfs_ioc_vec_t
*vec
= &zfs_ioc_vec
[ioc
- ZFS_IOC_FIRST
];
5286 ASSERT3U(ioc
, >=, ZFS_IOC_FIRST
);
5287 ASSERT3U(ioc
, <, ZFS_IOC_LAST
);
5288 ASSERT3P(vec
->zvec_legacy_func
, ==, NULL
);
5289 ASSERT3P(vec
->zvec_func
, ==, NULL
);
5291 vec
->zvec_legacy_func
= func
;
5292 vec
->zvec_secpolicy
= secpolicy
;
5293 vec
->zvec_namecheck
= namecheck
;
5294 vec
->zvec_allow_log
= log_history
;
5295 vec
->zvec_pool_check
= pool_check
;
5299 * See the block comment at the beginning of this file for details on
5300 * each argument to this function.
5303 zfs_ioctl_register(const char *name
, zfs_ioc_t ioc
, zfs_ioc_func_t
*func
,
5304 zfs_secpolicy_func_t
*secpolicy
, zfs_ioc_namecheck_t namecheck
,
5305 zfs_ioc_poolcheck_t pool_check
, boolean_t smush_outnvlist
,
5306 boolean_t allow_log
)
5308 zfs_ioc_vec_t
*vec
= &zfs_ioc_vec
[ioc
- ZFS_IOC_FIRST
];
5310 ASSERT3U(ioc
, >=, ZFS_IOC_FIRST
);
5311 ASSERT3U(ioc
, <, ZFS_IOC_LAST
);
5312 ASSERT3P(vec
->zvec_legacy_func
, ==, NULL
);
5313 ASSERT3P(vec
->zvec_func
, ==, NULL
);
5315 /* if we are logging, the name must be valid */
5316 ASSERT(!allow_log
|| namecheck
!= NO_NAME
);
5318 vec
->zvec_name
= name
;
5319 vec
->zvec_func
= func
;
5320 vec
->zvec_secpolicy
= secpolicy
;
5321 vec
->zvec_namecheck
= namecheck
;
5322 vec
->zvec_pool_check
= pool_check
;
5323 vec
->zvec_smush_outnvlist
= smush_outnvlist
;
5324 vec
->zvec_allow_log
= allow_log
;
5328 zfs_ioctl_register_pool(zfs_ioc_t ioc
, zfs_ioc_legacy_func_t
*func
,
5329 zfs_secpolicy_func_t
*secpolicy
, boolean_t log_history
,
5330 zfs_ioc_poolcheck_t pool_check
)
5332 zfs_ioctl_register_legacy(ioc
, func
, secpolicy
,
5333 POOL_NAME
, log_history
, pool_check
);
5337 zfs_ioctl_register_dataset_nolog(zfs_ioc_t ioc
, zfs_ioc_legacy_func_t
*func
,
5338 zfs_secpolicy_func_t
*secpolicy
, zfs_ioc_poolcheck_t pool_check
)
5340 zfs_ioctl_register_legacy(ioc
, func
, secpolicy
,
5341 DATASET_NAME
, B_FALSE
, pool_check
);
5345 zfs_ioctl_register_pool_modify(zfs_ioc_t ioc
, zfs_ioc_legacy_func_t
*func
)
5347 zfs_ioctl_register_legacy(ioc
, func
, zfs_secpolicy_config
,
5348 POOL_NAME
, B_TRUE
, POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
);
5352 zfs_ioctl_register_pool_meta(zfs_ioc_t ioc
, zfs_ioc_legacy_func_t
*func
,
5353 zfs_secpolicy_func_t
*secpolicy
)
5355 zfs_ioctl_register_legacy(ioc
, func
, secpolicy
,
5356 NO_NAME
, B_FALSE
, POOL_CHECK_NONE
);
5360 zfs_ioctl_register_dataset_read_secpolicy(zfs_ioc_t ioc
,
5361 zfs_ioc_legacy_func_t
*func
, zfs_secpolicy_func_t
*secpolicy
)
5363 zfs_ioctl_register_legacy(ioc
, func
, secpolicy
,
5364 DATASET_NAME
, B_FALSE
, POOL_CHECK_SUSPENDED
);
5368 zfs_ioctl_register_dataset_read(zfs_ioc_t ioc
, zfs_ioc_legacy_func_t
*func
)
5370 zfs_ioctl_register_dataset_read_secpolicy(ioc
, func
,
5371 zfs_secpolicy_read
);
5375 zfs_ioctl_register_dataset_modify(zfs_ioc_t ioc
, zfs_ioc_legacy_func_t
*func
,
5376 zfs_secpolicy_func_t
*secpolicy
)
5378 zfs_ioctl_register_legacy(ioc
, func
, secpolicy
,
5379 DATASET_NAME
, B_TRUE
, POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
);
5383 zfs_ioctl_init(void)
5385 zfs_ioctl_register("snapshot", ZFS_IOC_SNAPSHOT
,
5386 zfs_ioc_snapshot
, zfs_secpolicy_snapshot
, POOL_NAME
,
5387 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5389 zfs_ioctl_register("log_history", ZFS_IOC_LOG_HISTORY
,
5390 zfs_ioc_log_history
, zfs_secpolicy_log_history
, NO_NAME
,
5391 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_FALSE
, B_FALSE
);
5393 zfs_ioctl_register("space_snaps", ZFS_IOC_SPACE_SNAPS
,
5394 zfs_ioc_space_snaps
, zfs_secpolicy_read
, DATASET_NAME
,
5395 POOL_CHECK_SUSPENDED
, B_FALSE
, B_FALSE
);
5397 zfs_ioctl_register("send", ZFS_IOC_SEND_NEW
,
5398 zfs_ioc_send_new
, zfs_secpolicy_send_new
, DATASET_NAME
,
5399 POOL_CHECK_SUSPENDED
, B_FALSE
, B_FALSE
);
5401 zfs_ioctl_register("send_space", ZFS_IOC_SEND_SPACE
,
5402 zfs_ioc_send_space
, zfs_secpolicy_read
, DATASET_NAME
,
5403 POOL_CHECK_SUSPENDED
, B_FALSE
, B_FALSE
);
5405 zfs_ioctl_register("create", ZFS_IOC_CREATE
,
5406 zfs_ioc_create
, zfs_secpolicy_create_clone
, DATASET_NAME
,
5407 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5409 zfs_ioctl_register("clone", ZFS_IOC_CLONE
,
5410 zfs_ioc_clone
, zfs_secpolicy_create_clone
, DATASET_NAME
,
5411 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5413 zfs_ioctl_register("destroy_snaps", ZFS_IOC_DESTROY_SNAPS
,
5414 zfs_ioc_destroy_snaps
, zfs_secpolicy_destroy_snaps
, POOL_NAME
,
5415 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5417 zfs_ioctl_register("hold", ZFS_IOC_HOLD
,
5418 zfs_ioc_hold
, zfs_secpolicy_hold
, POOL_NAME
,
5419 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5420 zfs_ioctl_register("release", ZFS_IOC_RELEASE
,
5421 zfs_ioc_release
, zfs_secpolicy_release
, POOL_NAME
,
5422 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5424 zfs_ioctl_register("get_holds", ZFS_IOC_GET_HOLDS
,
5425 zfs_ioc_get_holds
, zfs_secpolicy_read
, DATASET_NAME
,
5426 POOL_CHECK_SUSPENDED
, B_FALSE
, B_FALSE
);
5428 zfs_ioctl_register("rollback", ZFS_IOC_ROLLBACK
,
5429 zfs_ioc_rollback
, zfs_secpolicy_rollback
, DATASET_NAME
,
5430 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_FALSE
, B_TRUE
);
5432 zfs_ioctl_register("bookmark", ZFS_IOC_BOOKMARK
,
5433 zfs_ioc_bookmark
, zfs_secpolicy_bookmark
, POOL_NAME
,
5434 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5436 zfs_ioctl_register("get_bookmarks", ZFS_IOC_GET_BOOKMARKS
,
5437 zfs_ioc_get_bookmarks
, zfs_secpolicy_read
, DATASET_NAME
,
5438 POOL_CHECK_SUSPENDED
, B_FALSE
, B_FALSE
);
5440 zfs_ioctl_register("destroy_bookmarks", ZFS_IOC_DESTROY_BOOKMARKS
,
5441 zfs_ioc_destroy_bookmarks
, zfs_secpolicy_destroy_bookmarks
,
5443 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5445 /* IOCTLS that use the legacy function signature */
5447 zfs_ioctl_register_legacy(ZFS_IOC_POOL_FREEZE
, zfs_ioc_pool_freeze
,
5448 zfs_secpolicy_config
, NO_NAME
, B_FALSE
, POOL_CHECK_READONLY
);
5450 zfs_ioctl_register_pool(ZFS_IOC_POOL_CREATE
, zfs_ioc_pool_create
,
5451 zfs_secpolicy_config
, B_TRUE
, POOL_CHECK_NONE
);
5452 zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_SCAN
,
5454 zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_UPGRADE
,
5455 zfs_ioc_pool_upgrade
);
5456 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_ADD
,
5458 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_REMOVE
,
5459 zfs_ioc_vdev_remove
);
5460 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SET_STATE
,
5461 zfs_ioc_vdev_set_state
);
5462 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_ATTACH
,
5463 zfs_ioc_vdev_attach
);
5464 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_DETACH
,
5465 zfs_ioc_vdev_detach
);
5466 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SETPATH
,
5467 zfs_ioc_vdev_setpath
);
5468 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SETFRU
,
5469 zfs_ioc_vdev_setfru
);
5470 zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_SET_PROPS
,
5471 zfs_ioc_pool_set_props
);
5472 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SPLIT
,
5473 zfs_ioc_vdev_split
);
5474 zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_REGUID
,
5475 zfs_ioc_pool_reguid
);
5477 zfs_ioctl_register_pool_meta(ZFS_IOC_POOL_CONFIGS
,
5478 zfs_ioc_pool_configs
, zfs_secpolicy_none
);
5479 zfs_ioctl_register_pool_meta(ZFS_IOC_POOL_TRYIMPORT
,
5480 zfs_ioc_pool_tryimport
, zfs_secpolicy_config
);
5481 zfs_ioctl_register_pool_meta(ZFS_IOC_INJECT_FAULT
,
5482 zfs_ioc_inject_fault
, zfs_secpolicy_inject
);
5483 zfs_ioctl_register_pool_meta(ZFS_IOC_CLEAR_FAULT
,
5484 zfs_ioc_clear_fault
, zfs_secpolicy_inject
);
5485 zfs_ioctl_register_pool_meta(ZFS_IOC_INJECT_LIST_NEXT
,
5486 zfs_ioc_inject_list_next
, zfs_secpolicy_inject
);
5489 * pool destroy, and export don't log the history as part of
5490 * zfsdev_ioctl, but rather zfs_ioc_pool_export
5491 * does the logging of those commands.
5493 zfs_ioctl_register_pool(ZFS_IOC_POOL_DESTROY
, zfs_ioc_pool_destroy
,
5494 zfs_secpolicy_config
, B_FALSE
, POOL_CHECK_SUSPENDED
);
5495 zfs_ioctl_register_pool(ZFS_IOC_POOL_EXPORT
, zfs_ioc_pool_export
,
5496 zfs_secpolicy_config
, B_FALSE
, POOL_CHECK_SUSPENDED
);
5498 zfs_ioctl_register_pool(ZFS_IOC_POOL_STATS
, zfs_ioc_pool_stats
,
5499 zfs_secpolicy_read
, B_FALSE
, POOL_CHECK_NONE
);
5500 zfs_ioctl_register_pool(ZFS_IOC_POOL_GET_PROPS
, zfs_ioc_pool_get_props
,
5501 zfs_secpolicy_read
, B_FALSE
, POOL_CHECK_NONE
);
5503 zfs_ioctl_register_pool(ZFS_IOC_ERROR_LOG
, zfs_ioc_error_log
,
5504 zfs_secpolicy_inject
, B_FALSE
, POOL_CHECK_SUSPENDED
);
5505 zfs_ioctl_register_pool(ZFS_IOC_DSOBJ_TO_DSNAME
,
5506 zfs_ioc_dsobj_to_dsname
,
5507 zfs_secpolicy_diff
, B_FALSE
, POOL_CHECK_SUSPENDED
);
5508 zfs_ioctl_register_pool(ZFS_IOC_POOL_GET_HISTORY
,
5509 zfs_ioc_pool_get_history
,
5510 zfs_secpolicy_config
, B_FALSE
, POOL_CHECK_SUSPENDED
);
5512 zfs_ioctl_register_pool(ZFS_IOC_POOL_IMPORT
, zfs_ioc_pool_import
,
5513 zfs_secpolicy_config
, B_TRUE
, POOL_CHECK_NONE
);
5515 zfs_ioctl_register_pool(ZFS_IOC_CLEAR
, zfs_ioc_clear
,
5516 zfs_secpolicy_config
, B_TRUE
, POOL_CHECK_NONE
);
5517 zfs_ioctl_register_pool(ZFS_IOC_POOL_REOPEN
, zfs_ioc_pool_reopen
,
5518 zfs_secpolicy_config
, B_TRUE
, POOL_CHECK_SUSPENDED
);
5520 zfs_ioctl_register_dataset_read(ZFS_IOC_SPACE_WRITTEN
,
5521 zfs_ioc_space_written
);
5522 zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_RECVD_PROPS
,
5523 zfs_ioc_objset_recvd_props
);
5524 zfs_ioctl_register_dataset_read(ZFS_IOC_NEXT_OBJ
,
5526 zfs_ioctl_register_dataset_read(ZFS_IOC_GET_FSACL
,
5528 zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_STATS
,
5529 zfs_ioc_objset_stats
);
5530 zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_ZPLPROPS
,
5531 zfs_ioc_objset_zplprops
);
5532 zfs_ioctl_register_dataset_read(ZFS_IOC_DATASET_LIST_NEXT
,
5533 zfs_ioc_dataset_list_next
);
5534 zfs_ioctl_register_dataset_read(ZFS_IOC_SNAPSHOT_LIST_NEXT
,
5535 zfs_ioc_snapshot_list_next
);
5536 zfs_ioctl_register_dataset_read(ZFS_IOC_SEND_PROGRESS
,
5537 zfs_ioc_send_progress
);
5539 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_DIFF
,
5540 zfs_ioc_diff
, zfs_secpolicy_diff
);
5541 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_OBJ_TO_STATS
,
5542 zfs_ioc_obj_to_stats
, zfs_secpolicy_diff
);
5543 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_OBJ_TO_PATH
,
5544 zfs_ioc_obj_to_path
, zfs_secpolicy_diff
);
5545 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_USERSPACE_ONE
,
5546 zfs_ioc_userspace_one
, zfs_secpolicy_userspace_one
);
5547 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_USERSPACE_MANY
,
5548 zfs_ioc_userspace_many
, zfs_secpolicy_userspace_many
);
5549 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_SEND
,
5550 zfs_ioc_send
, zfs_secpolicy_send
);
5552 zfs_ioctl_register_dataset_modify(ZFS_IOC_SET_PROP
, zfs_ioc_set_prop
,
5553 zfs_secpolicy_none
);
5554 zfs_ioctl_register_dataset_modify(ZFS_IOC_DESTROY
, zfs_ioc_destroy
,
5555 zfs_secpolicy_destroy
);
5556 zfs_ioctl_register_dataset_modify(ZFS_IOC_RENAME
, zfs_ioc_rename
,
5557 zfs_secpolicy_rename
);
5558 zfs_ioctl_register_dataset_modify(ZFS_IOC_RECV
, zfs_ioc_recv
,
5559 zfs_secpolicy_recv
);
5560 zfs_ioctl_register_dataset_modify(ZFS_IOC_PROMOTE
, zfs_ioc_promote
,
5561 zfs_secpolicy_promote
);
5562 zfs_ioctl_register_dataset_modify(ZFS_IOC_INHERIT_PROP
,
5563 zfs_ioc_inherit_prop
, zfs_secpolicy_inherit_prop
);
5564 zfs_ioctl_register_dataset_modify(ZFS_IOC_SET_FSACL
, zfs_ioc_set_fsacl
,
5565 zfs_secpolicy_set_fsacl
);
5567 zfs_ioctl_register_dataset_nolog(ZFS_IOC_SHARE
, zfs_ioc_share
,
5568 zfs_secpolicy_share
, POOL_CHECK_NONE
);
5569 zfs_ioctl_register_dataset_nolog(ZFS_IOC_SMB_ACL
, zfs_ioc_smb_acl
,
5570 zfs_secpolicy_smb_acl
, POOL_CHECK_NONE
);
5571 zfs_ioctl_register_dataset_nolog(ZFS_IOC_USERSPACE_UPGRADE
,
5572 zfs_ioc_userspace_upgrade
, zfs_secpolicy_userspace_upgrade
,
5573 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
);
5574 zfs_ioctl_register_dataset_nolog(ZFS_IOC_TMP_SNAPSHOT
,
5575 zfs_ioc_tmp_snapshot
, zfs_secpolicy_tmp_snapshot
,
5576 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
);
5581 zfs_ioctl_register_legacy(ZFS_IOC_EVENTS_NEXT
, zfs_ioc_events_next
,
5582 zfs_secpolicy_config
, NO_NAME
, B_FALSE
, POOL_CHECK_NONE
);
5583 zfs_ioctl_register_legacy(ZFS_IOC_EVENTS_CLEAR
, zfs_ioc_events_clear
,
5584 zfs_secpolicy_config
, NO_NAME
, B_FALSE
, POOL_CHECK_NONE
);
5585 zfs_ioctl_register_legacy(ZFS_IOC_EVENTS_SEEK
, zfs_ioc_events_seek
,
5586 zfs_secpolicy_config
, NO_NAME
, B_FALSE
, POOL_CHECK_NONE
);
5590 pool_status_check(const char *name
, zfs_ioc_namecheck_t type
,
5591 zfs_ioc_poolcheck_t check
)
5596 ASSERT(type
== POOL_NAME
|| type
== DATASET_NAME
);
5598 if (check
& POOL_CHECK_NONE
)
5601 error
= spa_open(name
, &spa
, FTAG
);
5603 if ((check
& POOL_CHECK_SUSPENDED
) && spa_suspended(spa
))
5604 error
= SET_ERROR(EAGAIN
);
5605 else if ((check
& POOL_CHECK_READONLY
) && !spa_writeable(spa
))
5606 error
= SET_ERROR(EROFS
);
5607 spa_close(spa
, FTAG
);
5613 zfsdev_get_state_impl(minor_t minor
, enum zfsdev_state_type which
)
5617 for (zs
= zfsdev_state_list
; zs
!= NULL
; zs
= zs
->zs_next
) {
5618 if (zs
->zs_minor
== minor
) {
5622 return (zs
->zs_onexit
);
5624 return (zs
->zs_zevent
);
5635 zfsdev_get_state(minor_t minor
, enum zfsdev_state_type which
)
5639 ptr
= zfsdev_get_state_impl(minor
, which
);
5645 zfsdev_getminor(struct file
*filp
, minor_t
*minorp
)
5647 zfsdev_state_t
*zs
, *fpd
;
5649 ASSERT(filp
!= NULL
);
5650 ASSERT(!MUTEX_HELD(&zfsdev_state_lock
));
5652 fpd
= filp
->private_data
;
5656 mutex_enter(&zfsdev_state_lock
);
5658 for (zs
= zfsdev_state_list
; zs
!= NULL
; zs
= zs
->zs_next
) {
5660 if (zs
->zs_minor
== -1)
5664 *minorp
= fpd
->zs_minor
;
5665 mutex_exit(&zfsdev_state_lock
);
5670 mutex_exit(&zfsdev_state_lock
);
5676 * Find a free minor number. The zfsdev_state_list is expected to
5677 * be short since it is only a list of currently open file handles.
5680 zfsdev_minor_alloc(void)
5682 static minor_t last_minor
= 0;
5685 ASSERT(MUTEX_HELD(&zfsdev_state_lock
));
5687 for (m
= last_minor
+ 1; m
!= last_minor
; m
++) {
5688 if (m
> ZFSDEV_MAX_MINOR
)
5690 if (zfsdev_get_state_impl(m
, ZST_ALL
) == NULL
) {
5700 zfsdev_state_init(struct file
*filp
)
5702 zfsdev_state_t
*zs
, *zsprev
= NULL
;
5704 boolean_t newzs
= B_FALSE
;
5706 ASSERT(MUTEX_HELD(&zfsdev_state_lock
));
5708 minor
= zfsdev_minor_alloc();
5710 return (SET_ERROR(ENXIO
));
5712 for (zs
= zfsdev_state_list
; zs
!= NULL
; zs
= zs
->zs_next
) {
5713 if (zs
->zs_minor
== -1)
5719 zs
= kmem_zalloc(sizeof (zfsdev_state_t
), KM_SLEEP
);
5724 filp
->private_data
= zs
;
5726 zfs_onexit_init((zfs_onexit_t
**)&zs
->zs_onexit
);
5727 zfs_zevent_init((zfs_zevent_t
**)&zs
->zs_zevent
);
5731 * In order to provide for lock-free concurrent read access
5732 * to the minor list in zfsdev_get_state_impl(), new entries
5733 * must be completely written before linking them into the
5734 * list whereas existing entries are already linked; the last
5735 * operation must be updating zs_minor (from -1 to the new
5739 zs
->zs_minor
= minor
;
5741 zsprev
->zs_next
= zs
;
5744 zs
->zs_minor
= minor
;
5751 zfsdev_state_destroy(struct file
*filp
)
5755 ASSERT(MUTEX_HELD(&zfsdev_state_lock
));
5756 ASSERT(filp
->private_data
!= NULL
);
5758 zs
= filp
->private_data
;
5760 zfs_onexit_destroy(zs
->zs_onexit
);
5761 zfs_zevent_destroy(zs
->zs_zevent
);
5767 zfsdev_open(struct inode
*ino
, struct file
*filp
)
5771 mutex_enter(&zfsdev_state_lock
);
5772 error
= zfsdev_state_init(filp
);
5773 mutex_exit(&zfsdev_state_lock
);
5779 zfsdev_release(struct inode
*ino
, struct file
*filp
)
5783 mutex_enter(&zfsdev_state_lock
);
5784 error
= zfsdev_state_destroy(filp
);
5785 mutex_exit(&zfsdev_state_lock
);
5791 zfsdev_ioctl(struct file
*filp
, unsigned cmd
, unsigned long arg
)
5795 int error
, rc
, flag
= 0;
5796 const zfs_ioc_vec_t
*vec
;
5797 char *saved_poolname
= NULL
;
5798 nvlist_t
*innvl
= NULL
;
5799 fstrans_cookie_t cookie
;
5801 vecnum
= cmd
- ZFS_IOC_FIRST
;
5802 if (vecnum
>= sizeof (zfs_ioc_vec
) / sizeof (zfs_ioc_vec
[0]))
5803 return (-SET_ERROR(EINVAL
));
5804 vec
= &zfs_ioc_vec
[vecnum
];
5807 * The registered ioctl list may be sparse, verify that either
5808 * a normal or legacy handler are registered.
5810 if (vec
->zvec_func
== NULL
&& vec
->zvec_legacy_func
== NULL
)
5811 return (-SET_ERROR(EINVAL
));
5813 zc
= kmem_zalloc(sizeof (zfs_cmd_t
), KM_SLEEP
);
5815 error
= ddi_copyin((void *)arg
, zc
, sizeof (zfs_cmd_t
), flag
);
5817 error
= SET_ERROR(EFAULT
);
5821 zc
->zc_iflags
= flag
& FKIOCTL
;
5822 if (zc
->zc_nvlist_src_size
> MAX_NVLIST_SRC_SIZE
) {
5824 * Make sure the user doesn't pass in an insane value for
5825 * zc_nvlist_src_size. We have to check, since we will end
5826 * up allocating that much memory inside of get_nvlist(). This
5827 * prevents a nefarious user from allocating tons of kernel
5830 * Also, we return EINVAL instead of ENOMEM here. The reason
5831 * being that returning ENOMEM from an ioctl() has a special
5832 * connotation; that the user's size value is too small and
5833 * needs to be expanded to hold the nvlist. See
5834 * zcmd_expand_dst_nvlist() for details.
5836 error
= SET_ERROR(EINVAL
); /* User's size too big */
5838 } else if (zc
->zc_nvlist_src_size
!= 0) {
5839 error
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
5840 zc
->zc_iflags
, &innvl
);
5846 * Ensure that all pool/dataset names are valid before we pass down to
5849 zc
->zc_name
[sizeof (zc
->zc_name
) - 1] = '\0';
5850 switch (vec
->zvec_namecheck
) {
5852 if (pool_namecheck(zc
->zc_name
, NULL
, NULL
) != 0)
5853 error
= SET_ERROR(EINVAL
);
5855 error
= pool_status_check(zc
->zc_name
,
5856 vec
->zvec_namecheck
, vec
->zvec_pool_check
);
5860 if (dataset_namecheck(zc
->zc_name
, NULL
, NULL
) != 0)
5861 error
= SET_ERROR(EINVAL
);
5863 error
= pool_status_check(zc
->zc_name
,
5864 vec
->zvec_namecheck
, vec
->zvec_pool_check
);
5872 if (error
== 0 && !(flag
& FKIOCTL
)) {
5873 cookie
= spl_fstrans_mark();
5874 error
= vec
->zvec_secpolicy(zc
, innvl
, CRED());
5875 spl_fstrans_unmark(cookie
);
5881 /* legacy ioctls can modify zc_name */
5882 saved_poolname
= strdup(zc
->zc_name
);
5883 if (saved_poolname
== NULL
) {
5884 error
= SET_ERROR(ENOMEM
);
5887 saved_poolname
[strcspn(saved_poolname
, "/@#")] = '\0';
5890 if (vec
->zvec_func
!= NULL
) {
5894 nvlist_t
*lognv
= NULL
;
5896 ASSERT(vec
->zvec_legacy_func
== NULL
);
5899 * Add the innvl to the lognv before calling the func,
5900 * in case the func changes the innvl.
5902 if (vec
->zvec_allow_log
) {
5903 lognv
= fnvlist_alloc();
5904 fnvlist_add_string(lognv
, ZPOOL_HIST_IOCTL
,
5906 if (!nvlist_empty(innvl
)) {
5907 fnvlist_add_nvlist(lognv
, ZPOOL_HIST_INPUT_NVL
,
5912 outnvl
= fnvlist_alloc();
5913 cookie
= spl_fstrans_mark();
5914 error
= vec
->zvec_func(zc
->zc_name
, innvl
, outnvl
);
5915 spl_fstrans_unmark(cookie
);
5917 if (error
== 0 && vec
->zvec_allow_log
&&
5918 spa_open(zc
->zc_name
, &spa
, FTAG
) == 0) {
5919 if (!nvlist_empty(outnvl
)) {
5920 fnvlist_add_nvlist(lognv
, ZPOOL_HIST_OUTPUT_NVL
,
5923 (void) spa_history_log_nvl(spa
, lognv
);
5924 spa_close(spa
, FTAG
);
5926 fnvlist_free(lognv
);
5928 if (!nvlist_empty(outnvl
) || zc
->zc_nvlist_dst_size
!= 0) {
5930 if (vec
->zvec_smush_outnvlist
) {
5931 smusherror
= nvlist_smush(outnvl
,
5932 zc
->zc_nvlist_dst_size
);
5934 if (smusherror
== 0)
5935 puterror
= put_nvlist(zc
, outnvl
);
5941 nvlist_free(outnvl
);
5943 cookie
= spl_fstrans_mark();
5944 error
= vec
->zvec_legacy_func(zc
);
5945 spl_fstrans_unmark(cookie
);
5950 rc
= ddi_copyout(zc
, (void *)arg
, sizeof (zfs_cmd_t
), flag
);
5951 if (error
== 0 && rc
!= 0)
5952 error
= SET_ERROR(EFAULT
);
5953 if (error
== 0 && vec
->zvec_allow_log
) {
5954 char *s
= tsd_get(zfs_allow_log_key
);
5957 (void) tsd_set(zfs_allow_log_key
, saved_poolname
);
5959 if (saved_poolname
!= NULL
)
5960 strfree(saved_poolname
);
5963 kmem_free(zc
, sizeof (zfs_cmd_t
));
5967 #ifdef CONFIG_COMPAT
5969 zfsdev_compat_ioctl(struct file
*filp
, unsigned cmd
, unsigned long arg
)
5971 return (zfsdev_ioctl(filp
, cmd
, arg
));
5974 #define zfsdev_compat_ioctl NULL
5977 static const struct file_operations zfsdev_fops
= {
5978 .open
= zfsdev_open
,
5979 .release
= zfsdev_release
,
5980 .unlocked_ioctl
= zfsdev_ioctl
,
5981 .compat_ioctl
= zfsdev_compat_ioctl
,
5982 .owner
= THIS_MODULE
,
5985 static struct miscdevice zfs_misc
= {
5986 .minor
= MISC_DYNAMIC_MINOR
,
5988 .fops
= &zfsdev_fops
,
5996 mutex_init(&zfsdev_state_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
5997 zfsdev_state_list
= kmem_zalloc(sizeof (zfsdev_state_t
), KM_SLEEP
);
5998 zfsdev_state_list
->zs_minor
= -1;
6000 error
= misc_register(&zfs_misc
);
6002 printk(KERN_INFO
"ZFS: misc_register() failed %d\n", error
);
6012 zfsdev_state_t
*zs
, *zsprev
= NULL
;
6014 misc_deregister(&zfs_misc
);
6015 mutex_destroy(&zfsdev_state_lock
);
6017 for (zs
= zfsdev_state_list
; zs
!= NULL
; zs
= zs
->zs_next
) {
6019 kmem_free(zsprev
, sizeof (zfsdev_state_t
));
6023 kmem_free(zsprev
, sizeof (zfsdev_state_t
));
6027 zfs_allow_log_destroy(void *arg
)
6029 char *poolname
= arg
;
6034 #define ZFS_DEBUG_STR " (DEBUG mode)"
6036 #define ZFS_DEBUG_STR ""
6044 error
= -vn_set_pwd("/");
6047 "ZFS: Warning unable to set pwd to '/': %d\n", error
);
6051 if ((error
= -zvol_init()) != 0)
6054 spa_init(FREAD
| FWRITE
);
6059 if ((error
= zfs_attach()) != 0)
6062 tsd_create(&zfs_fsyncer_key
, NULL
);
6063 tsd_create(&rrw_tsd_key
, rrw_tsd_destroy
);
6064 tsd_create(&zfs_allow_log_key
, zfs_allow_log_destroy
);
6066 printk(KERN_NOTICE
"ZFS: Loaded module v%s-%s%s, "
6067 "ZFS pool version %s, ZFS filesystem version %s\n",
6068 ZFS_META_VERSION
, ZFS_META_RELEASE
, ZFS_DEBUG_STR
,
6069 SPA_VERSION_STRING
, ZPL_VERSION_STRING
);
6070 #ifndef CONFIG_FS_POSIX_ACL
6071 printk(KERN_NOTICE
"ZFS: Posix ACLs disabled by kernel\n");
6072 #endif /* CONFIG_FS_POSIX_ACL */
6080 printk(KERN_NOTICE
"ZFS: Failed to Load ZFS Filesystem v%s-%s%s"
6081 ", rc = %d\n", ZFS_META_VERSION
, ZFS_META_RELEASE
,
6082 ZFS_DEBUG_STR
, error
);
6095 tsd_destroy(&zfs_fsyncer_key
);
6096 tsd_destroy(&rrw_tsd_key
);
6097 tsd_destroy(&zfs_allow_log_key
);
6099 printk(KERN_NOTICE
"ZFS: Unloaded module v%s-%s%s\n",
6100 ZFS_META_VERSION
, ZFS_META_RELEASE
, ZFS_DEBUG_STR
);
6107 MODULE_DESCRIPTION("ZFS");
6108 MODULE_AUTHOR(ZFS_META_AUTHOR
);
6109 MODULE_LICENSE(ZFS_META_LICENSE
);
6110 MODULE_VERSION(ZFS_META_VERSION
"-" ZFS_META_RELEASE
);
6111 #endif /* HAVE_SPL */