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, 2014 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>
190 #include "zfs_namecheck.h"
191 #include "zfs_prop.h"
192 #include "zfs_deleg.h"
193 #include "zfs_comutil.h"
195 kmutex_t zfsdev_state_lock
;
196 zfsdev_state_t
*zfsdev_state_list
;
198 extern void zfs_init(void);
199 extern void zfs_fini(void);
201 uint_t zfs_fsyncer_key
;
202 extern uint_t rrw_tsd_key
;
203 static uint_t zfs_allow_log_key
;
205 typedef int zfs_ioc_legacy_func_t(zfs_cmd_t
*);
206 typedef int zfs_ioc_func_t(const char *, nvlist_t
*, nvlist_t
*);
207 typedef int zfs_secpolicy_func_t(zfs_cmd_t
*, nvlist_t
*, cred_t
*);
213 } zfs_ioc_namecheck_t
;
216 POOL_CHECK_NONE
= 1 << 0,
217 POOL_CHECK_SUSPENDED
= 1 << 1,
218 POOL_CHECK_READONLY
= 1 << 2,
219 } zfs_ioc_poolcheck_t
;
221 typedef struct zfs_ioc_vec
{
222 zfs_ioc_legacy_func_t
*zvec_legacy_func
;
223 zfs_ioc_func_t
*zvec_func
;
224 zfs_secpolicy_func_t
*zvec_secpolicy
;
225 zfs_ioc_namecheck_t zvec_namecheck
;
226 boolean_t zvec_allow_log
;
227 zfs_ioc_poolcheck_t zvec_pool_check
;
228 boolean_t zvec_smush_outnvlist
;
229 const char *zvec_name
;
232 /* This array is indexed by zfs_userquota_prop_t */
233 static const char *userquota_perms
[] = {
234 ZFS_DELEG_PERM_USERUSED
,
235 ZFS_DELEG_PERM_USERQUOTA
,
236 ZFS_DELEG_PERM_GROUPUSED
,
237 ZFS_DELEG_PERM_GROUPQUOTA
,
240 static int zfs_ioc_userspace_upgrade(zfs_cmd_t
*zc
);
241 static int zfs_check_settable(const char *name
, nvpair_t
*property
,
243 static int zfs_check_clearable(char *dataset
, nvlist_t
*props
,
245 static int zfs_fill_zplprops_root(uint64_t, nvlist_t
*, nvlist_t
*,
247 int zfs_set_prop_nvlist(const char *, zprop_source_t
, nvlist_t
*, nvlist_t
*);
248 static int get_nvlist(uint64_t nvl
, uint64_t size
, int iflag
, nvlist_t
**nvp
);
251 history_str_free(char *buf
)
253 kmem_free(buf
, HIS_MAX_RECORD_LEN
);
257 history_str_get(zfs_cmd_t
*zc
)
261 if (zc
->zc_history
== 0)
264 buf
= kmem_alloc(HIS_MAX_RECORD_LEN
, KM_SLEEP
);
265 if (copyinstr((void *)(uintptr_t)zc
->zc_history
,
266 buf
, HIS_MAX_RECORD_LEN
, NULL
) != 0) {
267 history_str_free(buf
);
271 buf
[HIS_MAX_RECORD_LEN
-1] = '\0';
277 * Check to see if the named dataset is currently defined as bootable
280 zfs_is_bootfs(const char *name
)
284 if (dmu_objset_hold(name
, FTAG
, &os
) == 0) {
286 ret
= (dmu_objset_id(os
) == spa_bootfs(dmu_objset_spa(os
)));
287 dmu_objset_rele(os
, FTAG
);
294 * Return non-zero if the spa version is less than requested version.
297 zfs_earlier_version(const char *name
, int version
)
301 if (spa_open(name
, &spa
, FTAG
) == 0) {
302 if (spa_version(spa
) < version
) {
303 spa_close(spa
, FTAG
);
306 spa_close(spa
, FTAG
);
312 * Return TRUE if the ZPL version is less than requested version.
315 zpl_earlier_version(const char *name
, int version
)
318 boolean_t rc
= B_TRUE
;
320 if (dmu_objset_hold(name
, FTAG
, &os
) == 0) {
323 if (dmu_objset_type(os
) != DMU_OST_ZFS
) {
324 dmu_objset_rele(os
, FTAG
);
327 /* XXX reading from non-owned objset */
328 if (zfs_get_zplprop(os
, ZFS_PROP_VERSION
, &zplversion
) == 0)
329 rc
= zplversion
< version
;
330 dmu_objset_rele(os
, FTAG
);
336 zfs_log_history(zfs_cmd_t
*zc
)
341 if ((buf
= history_str_get(zc
)) == NULL
)
344 if (spa_open(zc
->zc_name
, &spa
, FTAG
) == 0) {
345 if (spa_version(spa
) >= SPA_VERSION_ZPOOL_HISTORY
)
346 (void) spa_history_log(spa
, buf
);
347 spa_close(spa
, FTAG
);
349 history_str_free(buf
);
353 * Policy for top-level read operations (list pools). Requires no privileges,
354 * and can be used in the local zone, as there is no associated dataset.
358 zfs_secpolicy_none(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
364 * Policy for dataset read operations (list children, get statistics). Requires
365 * no privileges, but must be visible in the local zone.
369 zfs_secpolicy_read(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
371 if (INGLOBALZONE(curproc
) ||
372 zone_dataset_visible(zc
->zc_name
, NULL
))
375 return (SET_ERROR(ENOENT
));
379 zfs_dozonecheck_impl(const char *dataset
, uint64_t zoned
, cred_t
*cr
)
384 * The dataset must be visible by this zone -- check this first
385 * so they don't see EPERM on something they shouldn't know about.
387 if (!INGLOBALZONE(curproc
) &&
388 !zone_dataset_visible(dataset
, &writable
))
389 return (SET_ERROR(ENOENT
));
391 if (INGLOBALZONE(curproc
)) {
393 * If the fs is zoned, only root can access it from the
396 if (secpolicy_zfs(cr
) && zoned
)
397 return (SET_ERROR(EPERM
));
400 * If we are in a local zone, the 'zoned' property must be set.
403 return (SET_ERROR(EPERM
));
405 /* must be writable by this zone */
407 return (SET_ERROR(EPERM
));
413 zfs_dozonecheck(const char *dataset
, cred_t
*cr
)
417 if (dsl_prop_get_integer(dataset
, "zoned", &zoned
, NULL
))
418 return (SET_ERROR(ENOENT
));
420 return (zfs_dozonecheck_impl(dataset
, zoned
, cr
));
424 zfs_dozonecheck_ds(const char *dataset
, dsl_dataset_t
*ds
, cred_t
*cr
)
428 if (dsl_prop_get_int_ds(ds
, "zoned", &zoned
))
429 return (SET_ERROR(ENOENT
));
431 return (zfs_dozonecheck_impl(dataset
, zoned
, cr
));
435 zfs_secpolicy_write_perms_ds(const char *name
, dsl_dataset_t
*ds
,
436 const char *perm
, cred_t
*cr
)
440 error
= zfs_dozonecheck_ds(name
, ds
, cr
);
442 error
= secpolicy_zfs(cr
);
444 error
= dsl_deleg_access_impl(ds
, perm
, cr
);
450 zfs_secpolicy_write_perms(const char *name
, const char *perm
, cred_t
*cr
)
456 error
= dsl_pool_hold(name
, FTAG
, &dp
);
460 error
= dsl_dataset_hold(dp
, name
, FTAG
, &ds
);
462 dsl_pool_rele(dp
, FTAG
);
466 error
= zfs_secpolicy_write_perms_ds(name
, ds
, perm
, cr
);
468 dsl_dataset_rele(ds
, FTAG
);
469 dsl_pool_rele(dp
, FTAG
);
474 * Policy for setting the security label property.
476 * Returns 0 for success, non-zero for access and other errors.
479 zfs_set_slabel_policy(const char *name
, char *strval
, cred_t
*cr
)
482 char ds_hexsl
[MAXNAMELEN
];
483 bslabel_t ds_sl
, new_sl
;
484 boolean_t new_default
= FALSE
;
486 int needed_priv
= -1;
489 /* First get the existing dataset label. */
490 error
= dsl_prop_get(name
, zfs_prop_to_name(ZFS_PROP_MLSLABEL
),
491 1, sizeof (ds_hexsl
), &ds_hexsl
, NULL
);
493 return (SET_ERROR(EPERM
));
495 if (strcasecmp(strval
, ZFS_MLSLABEL_DEFAULT
) == 0)
498 /* The label must be translatable */
499 if (!new_default
&& (hexstr_to_label(strval
, &new_sl
) != 0))
500 return (SET_ERROR(EINVAL
));
503 * In a non-global zone, disallow attempts to set a label that
504 * doesn't match that of the zone; otherwise no other checks
507 if (!INGLOBALZONE(curproc
)) {
508 if (new_default
|| !blequal(&new_sl
, CR_SL(CRED())))
509 return (SET_ERROR(EPERM
));
514 * For global-zone datasets (i.e., those whose zoned property is
515 * "off", verify that the specified new label is valid for the
518 if (dsl_prop_get_integer(name
,
519 zfs_prop_to_name(ZFS_PROP_ZONED
), &zoned
, NULL
))
520 return (SET_ERROR(EPERM
));
522 if (zfs_check_global_label(name
, strval
) != 0)
523 return (SET_ERROR(EPERM
));
527 * If the existing dataset label is nondefault, check if the
528 * dataset is mounted (label cannot be changed while mounted).
529 * Get the zfs_sb_t; if there isn't one, then the dataset isn't
530 * mounted (or isn't a dataset, doesn't exist, ...).
532 if (strcasecmp(ds_hexsl
, ZFS_MLSLABEL_DEFAULT
) != 0) {
534 static char *setsl_tag
= "setsl_tag";
537 * Try to own the dataset; abort if there is any error,
538 * (e.g., already mounted, in use, or other error).
540 error
= dmu_objset_own(name
, DMU_OST_ZFS
, B_TRUE
,
543 return (SET_ERROR(EPERM
));
545 dmu_objset_disown(os
, setsl_tag
);
548 needed_priv
= PRIV_FILE_DOWNGRADE_SL
;
552 if (hexstr_to_label(strval
, &new_sl
) != 0)
553 return (SET_ERROR(EPERM
));
555 if (blstrictdom(&ds_sl
, &new_sl
))
556 needed_priv
= PRIV_FILE_DOWNGRADE_SL
;
557 else if (blstrictdom(&new_sl
, &ds_sl
))
558 needed_priv
= PRIV_FILE_UPGRADE_SL
;
560 /* dataset currently has a default label */
562 needed_priv
= PRIV_FILE_UPGRADE_SL
;
566 if (needed_priv
!= -1)
567 return (PRIV_POLICY(cr
, needed_priv
, B_FALSE
, EPERM
, NULL
));
571 #endif /* HAVE_MLSLABEL */
575 zfs_secpolicy_setprop(const char *dsname
, zfs_prop_t prop
, nvpair_t
*propval
,
581 * Check permissions for special properties.
588 * Disallow setting of 'zoned' from within a local zone.
590 if (!INGLOBALZONE(curproc
))
591 return (SET_ERROR(EPERM
));
595 case ZFS_PROP_FILESYSTEM_LIMIT
:
596 case ZFS_PROP_SNAPSHOT_LIMIT
:
597 if (!INGLOBALZONE(curproc
)) {
599 char setpoint
[MAXNAMELEN
];
601 * Unprivileged users are allowed to modify the
602 * limit on things *under* (ie. contained by)
603 * the thing they own.
605 if (dsl_prop_get_integer(dsname
, "zoned", &zoned
,
607 return (SET_ERROR(EPERM
));
608 if (!zoned
|| strlen(dsname
) <= strlen(setpoint
))
609 return (SET_ERROR(EPERM
));
613 case ZFS_PROP_MLSLABEL
:
614 if (!is_system_labeled())
615 return (SET_ERROR(EPERM
));
617 if (nvpair_value_string(propval
, &strval
) == 0) {
620 err
= zfs_set_slabel_policy(dsname
, strval
, CRED());
627 return (zfs_secpolicy_write_perms(dsname
, zfs_prop_to_name(prop
), cr
));
632 zfs_secpolicy_set_fsacl(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
636 error
= zfs_dozonecheck(zc
->zc_name
, cr
);
641 * permission to set permissions will be evaluated later in
642 * dsl_deleg_can_allow()
649 zfs_secpolicy_rollback(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
651 return (zfs_secpolicy_write_perms(zc
->zc_name
,
652 ZFS_DELEG_PERM_ROLLBACK
, cr
));
657 zfs_secpolicy_send(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
665 * Generate the current snapshot name from the given objsetid, then
666 * use that name for the secpolicy/zone checks.
668 cp
= strchr(zc
->zc_name
, '@');
670 return (SET_ERROR(EINVAL
));
671 error
= dsl_pool_hold(zc
->zc_name
, FTAG
, &dp
);
675 error
= dsl_dataset_hold_obj(dp
, zc
->zc_sendobj
, FTAG
, &ds
);
677 dsl_pool_rele(dp
, FTAG
);
681 dsl_dataset_name(ds
, zc
->zc_name
);
683 error
= zfs_secpolicy_write_perms_ds(zc
->zc_name
, ds
,
684 ZFS_DELEG_PERM_SEND
, cr
);
685 dsl_dataset_rele(ds
, FTAG
);
686 dsl_pool_rele(dp
, FTAG
);
693 zfs_secpolicy_send_new(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
695 return (zfs_secpolicy_write_perms(zc
->zc_name
,
696 ZFS_DELEG_PERM_SEND
, cr
));
699 #ifdef HAVE_SMB_SHARE
702 zfs_secpolicy_deleg_share(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
707 if ((error
= lookupname(zc
->zc_value
, UIO_SYSSPACE
,
708 NO_FOLLOW
, NULL
, &vp
)) != 0)
711 /* Now make sure mntpnt and dataset are ZFS */
713 if (vp
->v_vfsp
->vfs_fstype
!= zfsfstype
||
714 (strcmp((char *)refstr_value(vp
->v_vfsp
->vfs_resource
),
715 zc
->zc_name
) != 0)) {
717 return (SET_ERROR(EPERM
));
721 return (dsl_deleg_access(zc
->zc_name
,
722 ZFS_DELEG_PERM_SHARE
, cr
));
724 #endif /* HAVE_SMB_SHARE */
727 zfs_secpolicy_share(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
729 #ifdef HAVE_SMB_SHARE
730 if (!INGLOBALZONE(curproc
))
731 return (SET_ERROR(EPERM
));
733 if (secpolicy_nfs(cr
) == 0) {
736 return (zfs_secpolicy_deleg_share(zc
, innvl
, cr
));
739 return (SET_ERROR(ENOTSUP
));
740 #endif /* HAVE_SMB_SHARE */
744 zfs_secpolicy_smb_acl(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
746 #ifdef HAVE_SMB_SHARE
747 if (!INGLOBALZONE(curproc
))
748 return (SET_ERROR(EPERM
));
750 if (secpolicy_smb(cr
) == 0) {
753 return (zfs_secpolicy_deleg_share(zc
, innvl
, cr
));
756 return (SET_ERROR(ENOTSUP
));
757 #endif /* HAVE_SMB_SHARE */
761 zfs_get_parent(const char *datasetname
, char *parent
, int parentsize
)
766 * Remove the @bla or /bla from the end of the name to get the parent.
768 (void) strncpy(parent
, datasetname
, parentsize
);
769 cp
= strrchr(parent
, '@');
773 cp
= strrchr(parent
, '/');
775 return (SET_ERROR(ENOENT
));
783 zfs_secpolicy_destroy_perms(const char *name
, cred_t
*cr
)
787 if ((error
= zfs_secpolicy_write_perms(name
,
788 ZFS_DELEG_PERM_MOUNT
, cr
)) != 0)
791 return (zfs_secpolicy_write_perms(name
, ZFS_DELEG_PERM_DESTROY
, cr
));
796 zfs_secpolicy_destroy(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
798 return (zfs_secpolicy_destroy_perms(zc
->zc_name
, cr
));
802 * Destroying snapshots with delegated permissions requires
803 * descendant mount and destroy permissions.
807 zfs_secpolicy_destroy_snaps(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
810 nvpair_t
*pair
, *nextpair
;
813 if (nvlist_lookup_nvlist(innvl
, "snaps", &snaps
) != 0)
814 return (SET_ERROR(EINVAL
));
815 for (pair
= nvlist_next_nvpair(snaps
, NULL
); pair
!= NULL
;
817 nextpair
= nvlist_next_nvpair(snaps
, pair
);
818 error
= zfs_secpolicy_destroy_perms(nvpair_name(pair
), cr
);
819 if (error
== ENOENT
) {
821 * Ignore any snapshots that don't exist (we consider
822 * them "already destroyed"). Remove the name from the
823 * nvl here in case the snapshot is created between
824 * now and when we try to destroy it (in which case
825 * we don't want to destroy it since we haven't
826 * checked for permission).
828 fnvlist_remove_nvpair(snaps
, pair
);
839 zfs_secpolicy_rename_perms(const char *from
, const char *to
, cred_t
*cr
)
841 char parentname
[MAXNAMELEN
];
844 if ((error
= zfs_secpolicy_write_perms(from
,
845 ZFS_DELEG_PERM_RENAME
, cr
)) != 0)
848 if ((error
= zfs_secpolicy_write_perms(from
,
849 ZFS_DELEG_PERM_MOUNT
, cr
)) != 0)
852 if ((error
= zfs_get_parent(to
, parentname
,
853 sizeof (parentname
))) != 0)
856 if ((error
= zfs_secpolicy_write_perms(parentname
,
857 ZFS_DELEG_PERM_CREATE
, cr
)) != 0)
860 if ((error
= zfs_secpolicy_write_perms(parentname
,
861 ZFS_DELEG_PERM_MOUNT
, cr
)) != 0)
869 zfs_secpolicy_rename(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
871 return (zfs_secpolicy_rename_perms(zc
->zc_name
, zc
->zc_value
, cr
));
876 zfs_secpolicy_promote(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
879 dsl_dataset_t
*clone
;
882 error
= zfs_secpolicy_write_perms(zc
->zc_name
,
883 ZFS_DELEG_PERM_PROMOTE
, cr
);
887 error
= dsl_pool_hold(zc
->zc_name
, FTAG
, &dp
);
891 error
= dsl_dataset_hold(dp
, zc
->zc_name
, FTAG
, &clone
);
894 char parentname
[MAXNAMELEN
];
895 dsl_dataset_t
*origin
= NULL
;
899 error
= dsl_dataset_hold_obj(dd
->dd_pool
,
900 dsl_dir_phys(dd
)->dd_origin_obj
, FTAG
, &origin
);
902 dsl_dataset_rele(clone
, FTAG
);
903 dsl_pool_rele(dp
, FTAG
);
907 error
= zfs_secpolicy_write_perms_ds(zc
->zc_name
, clone
,
908 ZFS_DELEG_PERM_MOUNT
, cr
);
910 dsl_dataset_name(origin
, parentname
);
912 error
= zfs_secpolicy_write_perms_ds(parentname
, origin
,
913 ZFS_DELEG_PERM_PROMOTE
, cr
);
915 dsl_dataset_rele(clone
, FTAG
);
916 dsl_dataset_rele(origin
, FTAG
);
918 dsl_pool_rele(dp
, FTAG
);
924 zfs_secpolicy_recv(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
928 if ((error
= zfs_secpolicy_write_perms(zc
->zc_name
,
929 ZFS_DELEG_PERM_RECEIVE
, cr
)) != 0)
932 if ((error
= zfs_secpolicy_write_perms(zc
->zc_name
,
933 ZFS_DELEG_PERM_MOUNT
, cr
)) != 0)
936 return (zfs_secpolicy_write_perms(zc
->zc_name
,
937 ZFS_DELEG_PERM_CREATE
, cr
));
941 zfs_secpolicy_snapshot_perms(const char *name
, cred_t
*cr
)
943 return (zfs_secpolicy_write_perms(name
,
944 ZFS_DELEG_PERM_SNAPSHOT
, cr
));
948 * Check for permission to create each snapshot in the nvlist.
952 zfs_secpolicy_snapshot(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
958 if (nvlist_lookup_nvlist(innvl
, "snaps", &snaps
) != 0)
959 return (SET_ERROR(EINVAL
));
960 for (pair
= nvlist_next_nvpair(snaps
, NULL
); pair
!= NULL
;
961 pair
= nvlist_next_nvpair(snaps
, pair
)) {
962 char *name
= nvpair_name(pair
);
963 char *atp
= strchr(name
, '@');
966 error
= SET_ERROR(EINVAL
);
970 error
= zfs_secpolicy_snapshot_perms(name
, cr
);
979 * Check for permission to create each snapshot in the nvlist.
983 zfs_secpolicy_bookmark(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
988 for (pair
= nvlist_next_nvpair(innvl
, NULL
);
989 pair
!= NULL
; pair
= nvlist_next_nvpair(innvl
, pair
)) {
990 char *name
= nvpair_name(pair
);
991 char *hashp
= strchr(name
, '#');
994 error
= SET_ERROR(EINVAL
);
998 error
= zfs_secpolicy_write_perms(name
,
999 ZFS_DELEG_PERM_BOOKMARK
, cr
);
1009 zfs_secpolicy_destroy_bookmarks(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1011 nvpair_t
*pair
, *nextpair
;
1014 for (pair
= nvlist_next_nvpair(innvl
, NULL
); pair
!= NULL
;
1016 char *name
= nvpair_name(pair
);
1017 char *hashp
= strchr(name
, '#');
1018 nextpair
= nvlist_next_nvpair(innvl
, pair
);
1020 if (hashp
== NULL
) {
1021 error
= SET_ERROR(EINVAL
);
1026 error
= zfs_secpolicy_write_perms(name
,
1027 ZFS_DELEG_PERM_DESTROY
, cr
);
1029 if (error
== ENOENT
) {
1031 * Ignore any filesystems that don't exist (we consider
1032 * their bookmarks "already destroyed"). Remove
1033 * the name from the nvl here in case the filesystem
1034 * is created between now and when we try to destroy
1035 * the bookmark (in which case we don't want to
1036 * destroy it since we haven't checked for permission).
1038 fnvlist_remove_nvpair(innvl
, pair
);
1050 zfs_secpolicy_log_history(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1053 * Even root must have a proper TSD so that we know what pool
1056 if (tsd_get(zfs_allow_log_key
) == NULL
)
1057 return (SET_ERROR(EPERM
));
1062 zfs_secpolicy_create_clone(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1064 char parentname
[MAXNAMELEN
];
1068 if ((error
= zfs_get_parent(zc
->zc_name
, parentname
,
1069 sizeof (parentname
))) != 0)
1072 if (nvlist_lookup_string(innvl
, "origin", &origin
) == 0 &&
1073 (error
= zfs_secpolicy_write_perms(origin
,
1074 ZFS_DELEG_PERM_CLONE
, cr
)) != 0)
1077 if ((error
= zfs_secpolicy_write_perms(parentname
,
1078 ZFS_DELEG_PERM_CREATE
, cr
)) != 0)
1081 return (zfs_secpolicy_write_perms(parentname
,
1082 ZFS_DELEG_PERM_MOUNT
, cr
));
1086 * Policy for pool operations - create/destroy pools, add vdevs, etc. Requires
1087 * SYS_CONFIG privilege, which is not available in a local zone.
1091 zfs_secpolicy_config(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1093 if (secpolicy_sys_config(cr
, B_FALSE
) != 0)
1094 return (SET_ERROR(EPERM
));
1100 * Policy for object to name lookups.
1104 zfs_secpolicy_diff(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1108 if ((error
= secpolicy_sys_config(cr
, B_FALSE
)) == 0)
1111 error
= zfs_secpolicy_write_perms(zc
->zc_name
, ZFS_DELEG_PERM_DIFF
, cr
);
1116 * Policy for fault injection. Requires all privileges.
1120 zfs_secpolicy_inject(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1122 return (secpolicy_zinject(cr
));
1127 zfs_secpolicy_inherit_prop(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1129 zfs_prop_t prop
= zfs_name_to_prop(zc
->zc_value
);
1131 if (prop
== ZPROP_INVAL
) {
1132 if (!zfs_prop_user(zc
->zc_value
))
1133 return (SET_ERROR(EINVAL
));
1134 return (zfs_secpolicy_write_perms(zc
->zc_name
,
1135 ZFS_DELEG_PERM_USERPROP
, cr
));
1137 return (zfs_secpolicy_setprop(zc
->zc_name
, prop
,
1143 zfs_secpolicy_userspace_one(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1145 int err
= zfs_secpolicy_read(zc
, innvl
, cr
);
1149 if (zc
->zc_objset_type
>= ZFS_NUM_USERQUOTA_PROPS
)
1150 return (SET_ERROR(EINVAL
));
1152 if (zc
->zc_value
[0] == 0) {
1154 * They are asking about a posix uid/gid. If it's
1155 * themself, allow it.
1157 if (zc
->zc_objset_type
== ZFS_PROP_USERUSED
||
1158 zc
->zc_objset_type
== ZFS_PROP_USERQUOTA
) {
1159 if (zc
->zc_guid
== crgetuid(cr
))
1162 if (groupmember(zc
->zc_guid
, cr
))
1167 return (zfs_secpolicy_write_perms(zc
->zc_name
,
1168 userquota_perms
[zc
->zc_objset_type
], cr
));
1172 zfs_secpolicy_userspace_many(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1174 int err
= zfs_secpolicy_read(zc
, innvl
, cr
);
1178 if (zc
->zc_objset_type
>= ZFS_NUM_USERQUOTA_PROPS
)
1179 return (SET_ERROR(EINVAL
));
1181 return (zfs_secpolicy_write_perms(zc
->zc_name
,
1182 userquota_perms
[zc
->zc_objset_type
], cr
));
1187 zfs_secpolicy_userspace_upgrade(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1189 return (zfs_secpolicy_setprop(zc
->zc_name
, ZFS_PROP_VERSION
,
1195 zfs_secpolicy_hold(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1201 error
= nvlist_lookup_nvlist(innvl
, "holds", &holds
);
1203 return (SET_ERROR(EINVAL
));
1205 for (pair
= nvlist_next_nvpair(holds
, NULL
); pair
!= NULL
;
1206 pair
= nvlist_next_nvpair(holds
, pair
)) {
1207 char fsname
[MAXNAMELEN
];
1208 error
= dmu_fsname(nvpair_name(pair
), fsname
);
1211 error
= zfs_secpolicy_write_perms(fsname
,
1212 ZFS_DELEG_PERM_HOLD
, cr
);
1221 zfs_secpolicy_release(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1226 for (pair
= nvlist_next_nvpair(innvl
, NULL
); pair
!= NULL
;
1227 pair
= nvlist_next_nvpair(innvl
, pair
)) {
1228 char fsname
[MAXNAMELEN
];
1229 error
= dmu_fsname(nvpair_name(pair
), fsname
);
1232 error
= zfs_secpolicy_write_perms(fsname
,
1233 ZFS_DELEG_PERM_RELEASE
, cr
);
1241 * Policy for allowing temporary snapshots to be taken or released
1244 zfs_secpolicy_tmp_snapshot(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1247 * A temporary snapshot is the same as a snapshot,
1248 * hold, destroy and release all rolled into one.
1249 * Delegated diff alone is sufficient that we allow this.
1253 if ((error
= zfs_secpolicy_write_perms(zc
->zc_name
,
1254 ZFS_DELEG_PERM_DIFF
, cr
)) == 0)
1257 error
= zfs_secpolicy_snapshot_perms(zc
->zc_name
, cr
);
1259 error
= zfs_secpolicy_hold(zc
, innvl
, cr
);
1261 error
= zfs_secpolicy_release(zc
, innvl
, cr
);
1263 error
= zfs_secpolicy_destroy(zc
, innvl
, cr
);
1268 * Returns the nvlist as specified by the user in the zfs_cmd_t.
1271 get_nvlist(uint64_t nvl
, uint64_t size
, int iflag
, nvlist_t
**nvp
)
1275 nvlist_t
*list
= NULL
;
1278 * Read in and unpack the user-supplied nvlist.
1281 return (SET_ERROR(EINVAL
));
1283 packed
= vmem_alloc(size
, KM_SLEEP
);
1285 if ((error
= ddi_copyin((void *)(uintptr_t)nvl
, packed
, size
,
1287 vmem_free(packed
, size
);
1288 return (SET_ERROR(EFAULT
));
1291 if ((error
= nvlist_unpack(packed
, size
, &list
, 0)) != 0) {
1292 vmem_free(packed
, size
);
1296 vmem_free(packed
, size
);
1303 * Reduce the size of this nvlist until it can be serialized in 'max' bytes.
1304 * Entries will be removed from the end of the nvlist, and one int32 entry
1305 * named "N_MORE_ERRORS" will be added indicating how many entries were
1309 nvlist_smush(nvlist_t
*errors
, size_t max
)
1313 size
= fnvlist_size(errors
);
1316 nvpair_t
*more_errors
;
1320 return (SET_ERROR(ENOMEM
));
1322 fnvlist_add_int32(errors
, ZPROP_N_MORE_ERRORS
, 0);
1323 more_errors
= nvlist_prev_nvpair(errors
, NULL
);
1326 nvpair_t
*pair
= nvlist_prev_nvpair(errors
,
1328 fnvlist_remove_nvpair(errors
, pair
);
1330 size
= fnvlist_size(errors
);
1331 } while (size
> max
);
1333 fnvlist_remove_nvpair(errors
, more_errors
);
1334 fnvlist_add_int32(errors
, ZPROP_N_MORE_ERRORS
, n
);
1335 ASSERT3U(fnvlist_size(errors
), <=, max
);
1342 put_nvlist(zfs_cmd_t
*zc
, nvlist_t
*nvl
)
1344 char *packed
= NULL
;
1348 size
= fnvlist_size(nvl
);
1350 if (size
> zc
->zc_nvlist_dst_size
) {
1351 error
= SET_ERROR(ENOMEM
);
1353 packed
= fnvlist_pack(nvl
, &size
);
1354 if (ddi_copyout(packed
, (void *)(uintptr_t)zc
->zc_nvlist_dst
,
1355 size
, zc
->zc_iflags
) != 0)
1356 error
= SET_ERROR(EFAULT
);
1357 fnvlist_pack_free(packed
, size
);
1360 zc
->zc_nvlist_dst_size
= size
;
1361 zc
->zc_nvlist_dst_filled
= B_TRUE
;
1366 get_zfs_sb(const char *dsname
, zfs_sb_t
**zsbp
)
1371 error
= dmu_objset_hold(dsname
, FTAG
, &os
);
1374 if (dmu_objset_type(os
) != DMU_OST_ZFS
) {
1375 dmu_objset_rele(os
, FTAG
);
1376 return (SET_ERROR(EINVAL
));
1379 mutex_enter(&os
->os_user_ptr_lock
);
1380 *zsbp
= dmu_objset_get_user(os
);
1381 if (*zsbp
&& (*zsbp
)->z_sb
) {
1382 atomic_inc(&((*zsbp
)->z_sb
->s_active
));
1384 error
= SET_ERROR(ESRCH
);
1386 mutex_exit(&os
->os_user_ptr_lock
);
1387 dmu_objset_rele(os
, FTAG
);
1392 * Find a zfs_sb_t for a mounted filesystem, or create our own, in which
1393 * case its z_sb will be NULL, and it will be opened as the owner.
1394 * If 'writer' is set, the z_teardown_lock will be held for RW_WRITER,
1395 * which prevents all inode ops from running.
1398 zfs_sb_hold(const char *name
, void *tag
, zfs_sb_t
**zsbp
, boolean_t writer
)
1402 if (get_zfs_sb(name
, zsbp
) != 0)
1403 error
= zfs_sb_create(name
, NULL
, zsbp
);
1405 rrm_enter(&(*zsbp
)->z_teardown_lock
, (writer
) ? RW_WRITER
:
1407 if ((*zsbp
)->z_unmounted
) {
1409 * XXX we could probably try again, since the unmounting
1410 * thread should be just about to disassociate the
1411 * objset from the zsb.
1413 rrm_exit(&(*zsbp
)->z_teardown_lock
, tag
);
1414 return (SET_ERROR(EBUSY
));
1421 zfs_sb_rele(zfs_sb_t
*zsb
, void *tag
)
1423 rrm_exit(&zsb
->z_teardown_lock
, tag
);
1426 deactivate_super(zsb
->z_sb
);
1428 dmu_objset_disown(zsb
->z_os
, zsb
);
1434 zfs_ioc_pool_create(zfs_cmd_t
*zc
)
1437 nvlist_t
*config
, *props
= NULL
;
1438 nvlist_t
*rootprops
= NULL
;
1439 nvlist_t
*zplprops
= NULL
;
1441 if ((error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1442 zc
->zc_iflags
, &config
)))
1445 if (zc
->zc_nvlist_src_size
!= 0 && (error
=
1446 get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
1447 zc
->zc_iflags
, &props
))) {
1448 nvlist_free(config
);
1453 nvlist_t
*nvl
= NULL
;
1454 uint64_t version
= SPA_VERSION
;
1456 (void) nvlist_lookup_uint64(props
,
1457 zpool_prop_to_name(ZPOOL_PROP_VERSION
), &version
);
1458 if (!SPA_VERSION_IS_SUPPORTED(version
)) {
1459 error
= SET_ERROR(EINVAL
);
1460 goto pool_props_bad
;
1462 (void) nvlist_lookup_nvlist(props
, ZPOOL_ROOTFS_PROPS
, &nvl
);
1464 error
= nvlist_dup(nvl
, &rootprops
, KM_SLEEP
);
1466 nvlist_free(config
);
1470 (void) nvlist_remove_all(props
, ZPOOL_ROOTFS_PROPS
);
1472 VERIFY(nvlist_alloc(&zplprops
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
1473 error
= zfs_fill_zplprops_root(version
, rootprops
,
1476 goto pool_props_bad
;
1479 error
= spa_create(zc
->zc_name
, config
, props
, zplprops
);
1482 * Set the remaining root properties
1484 if (!error
&& (error
= zfs_set_prop_nvlist(zc
->zc_name
,
1485 ZPROP_SRC_LOCAL
, rootprops
, NULL
)) != 0)
1486 (void) spa_destroy(zc
->zc_name
);
1489 nvlist_free(rootprops
);
1490 nvlist_free(zplprops
);
1491 nvlist_free(config
);
1498 zfs_ioc_pool_destroy(zfs_cmd_t
*zc
)
1501 zfs_log_history(zc
);
1502 error
= spa_destroy(zc
->zc_name
);
1508 zfs_ioc_pool_import(zfs_cmd_t
*zc
)
1510 nvlist_t
*config
, *props
= NULL
;
1514 if ((error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1515 zc
->zc_iflags
, &config
)) != 0)
1518 if (zc
->zc_nvlist_src_size
!= 0 && (error
=
1519 get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
1520 zc
->zc_iflags
, &props
))) {
1521 nvlist_free(config
);
1525 if (nvlist_lookup_uint64(config
, ZPOOL_CONFIG_POOL_GUID
, &guid
) != 0 ||
1526 guid
!= zc
->zc_guid
)
1527 error
= SET_ERROR(EINVAL
);
1529 error
= spa_import(zc
->zc_name
, config
, props
, zc
->zc_cookie
);
1531 if (zc
->zc_nvlist_dst
!= 0) {
1534 if ((err
= put_nvlist(zc
, config
)) != 0)
1538 nvlist_free(config
);
1547 zfs_ioc_pool_export(zfs_cmd_t
*zc
)
1550 boolean_t force
= (boolean_t
)zc
->zc_cookie
;
1551 boolean_t hardforce
= (boolean_t
)zc
->zc_guid
;
1553 zfs_log_history(zc
);
1554 error
= spa_export(zc
->zc_name
, NULL
, force
, hardforce
);
1560 zfs_ioc_pool_configs(zfs_cmd_t
*zc
)
1565 if ((configs
= spa_all_configs(&zc
->zc_cookie
)) == NULL
)
1566 return (SET_ERROR(EEXIST
));
1568 error
= put_nvlist(zc
, configs
);
1570 nvlist_free(configs
);
1577 * zc_name name of the pool
1580 * zc_cookie real errno
1581 * zc_nvlist_dst config nvlist
1582 * zc_nvlist_dst_size size of config nvlist
1585 zfs_ioc_pool_stats(zfs_cmd_t
*zc
)
1591 error
= spa_get_stats(zc
->zc_name
, &config
, zc
->zc_value
,
1592 sizeof (zc
->zc_value
));
1594 if (config
!= NULL
) {
1595 ret
= put_nvlist(zc
, config
);
1596 nvlist_free(config
);
1599 * The config may be present even if 'error' is non-zero.
1600 * In this case we return success, and preserve the real errno
1603 zc
->zc_cookie
= error
;
1612 * Try to import the given pool, returning pool stats as appropriate so that
1613 * user land knows which devices are available and overall pool health.
1616 zfs_ioc_pool_tryimport(zfs_cmd_t
*zc
)
1618 nvlist_t
*tryconfig
, *config
;
1621 if ((error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1622 zc
->zc_iflags
, &tryconfig
)) != 0)
1625 config
= spa_tryimport(tryconfig
);
1627 nvlist_free(tryconfig
);
1630 return (SET_ERROR(EINVAL
));
1632 error
= put_nvlist(zc
, config
);
1633 nvlist_free(config
);
1640 * zc_name name of the pool
1641 * zc_cookie scan func (pool_scan_func_t)
1644 zfs_ioc_pool_scan(zfs_cmd_t
*zc
)
1649 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1652 if (zc
->zc_cookie
== POOL_SCAN_NONE
)
1653 error
= spa_scan_stop(spa
);
1655 error
= spa_scan(spa
, zc
->zc_cookie
);
1657 spa_close(spa
, FTAG
);
1663 zfs_ioc_pool_freeze(zfs_cmd_t
*zc
)
1668 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
1671 spa_close(spa
, FTAG
);
1677 zfs_ioc_pool_upgrade(zfs_cmd_t
*zc
)
1682 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1685 if (zc
->zc_cookie
< spa_version(spa
) ||
1686 !SPA_VERSION_IS_SUPPORTED(zc
->zc_cookie
)) {
1687 spa_close(spa
, FTAG
);
1688 return (SET_ERROR(EINVAL
));
1691 spa_upgrade(spa
, zc
->zc_cookie
);
1692 spa_close(spa
, FTAG
);
1698 zfs_ioc_pool_get_history(zfs_cmd_t
*zc
)
1705 if ((size
= zc
->zc_history_len
) == 0)
1706 return (SET_ERROR(EINVAL
));
1708 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1711 if (spa_version(spa
) < SPA_VERSION_ZPOOL_HISTORY
) {
1712 spa_close(spa
, FTAG
);
1713 return (SET_ERROR(ENOTSUP
));
1716 hist_buf
= vmem_alloc(size
, KM_SLEEP
);
1717 if ((error
= spa_history_get(spa
, &zc
->zc_history_offset
,
1718 &zc
->zc_history_len
, hist_buf
)) == 0) {
1719 error
= ddi_copyout(hist_buf
,
1720 (void *)(uintptr_t)zc
->zc_history
,
1721 zc
->zc_history_len
, zc
->zc_iflags
);
1724 spa_close(spa
, FTAG
);
1725 vmem_free(hist_buf
, size
);
1730 zfs_ioc_pool_reguid(zfs_cmd_t
*zc
)
1735 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
1737 error
= spa_change_guid(spa
);
1738 spa_close(spa
, FTAG
);
1744 zfs_ioc_dsobj_to_dsname(zfs_cmd_t
*zc
)
1746 return (dsl_dsobj_to_dsname(zc
->zc_name
, zc
->zc_obj
, zc
->zc_value
));
1751 * zc_name name of filesystem
1752 * zc_obj object to find
1755 * zc_value name of object
1758 zfs_ioc_obj_to_path(zfs_cmd_t
*zc
)
1763 /* XXX reading from objset not owned */
1764 if ((error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
)) != 0)
1766 if (dmu_objset_type(os
) != DMU_OST_ZFS
) {
1767 dmu_objset_rele(os
, FTAG
);
1768 return (SET_ERROR(EINVAL
));
1770 error
= zfs_obj_to_path(os
, zc
->zc_obj
, zc
->zc_value
,
1771 sizeof (zc
->zc_value
));
1772 dmu_objset_rele(os
, FTAG
);
1779 * zc_name name of filesystem
1780 * zc_obj object to find
1783 * zc_stat stats on object
1784 * zc_value path to object
1787 zfs_ioc_obj_to_stats(zfs_cmd_t
*zc
)
1792 /* XXX reading from objset not owned */
1793 if ((error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
)) != 0)
1795 if (dmu_objset_type(os
) != DMU_OST_ZFS
) {
1796 dmu_objset_rele(os
, FTAG
);
1797 return (SET_ERROR(EINVAL
));
1799 error
= zfs_obj_to_stats(os
, zc
->zc_obj
, &zc
->zc_stat
, zc
->zc_value
,
1800 sizeof (zc
->zc_value
));
1801 dmu_objset_rele(os
, FTAG
);
1807 zfs_ioc_vdev_add(zfs_cmd_t
*zc
)
1813 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
1817 error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1818 zc
->zc_iflags
, &config
);
1820 error
= spa_vdev_add(spa
, config
);
1821 nvlist_free(config
);
1823 spa_close(spa
, FTAG
);
1829 * zc_name name of the pool
1830 * zc_nvlist_conf nvlist of devices to remove
1831 * zc_cookie to stop the remove?
1834 zfs_ioc_vdev_remove(zfs_cmd_t
*zc
)
1839 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
1842 error
= spa_vdev_remove(spa
, zc
->zc_guid
, B_FALSE
);
1843 spa_close(spa
, FTAG
);
1848 zfs_ioc_vdev_set_state(zfs_cmd_t
*zc
)
1852 vdev_state_t newstate
= VDEV_STATE_UNKNOWN
;
1854 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1856 switch (zc
->zc_cookie
) {
1857 case VDEV_STATE_ONLINE
:
1858 error
= vdev_online(spa
, zc
->zc_guid
, zc
->zc_obj
, &newstate
);
1861 case VDEV_STATE_OFFLINE
:
1862 error
= vdev_offline(spa
, zc
->zc_guid
, zc
->zc_obj
);
1865 case VDEV_STATE_FAULTED
:
1866 if (zc
->zc_obj
!= VDEV_AUX_ERR_EXCEEDED
&&
1867 zc
->zc_obj
!= VDEV_AUX_EXTERNAL
)
1868 zc
->zc_obj
= VDEV_AUX_ERR_EXCEEDED
;
1870 error
= vdev_fault(spa
, zc
->zc_guid
, zc
->zc_obj
);
1873 case VDEV_STATE_DEGRADED
:
1874 if (zc
->zc_obj
!= VDEV_AUX_ERR_EXCEEDED
&&
1875 zc
->zc_obj
!= VDEV_AUX_EXTERNAL
)
1876 zc
->zc_obj
= VDEV_AUX_ERR_EXCEEDED
;
1878 error
= vdev_degrade(spa
, zc
->zc_guid
, zc
->zc_obj
);
1882 error
= SET_ERROR(EINVAL
);
1884 zc
->zc_cookie
= newstate
;
1885 spa_close(spa
, FTAG
);
1890 zfs_ioc_vdev_attach(zfs_cmd_t
*zc
)
1893 int replacing
= zc
->zc_cookie
;
1897 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1900 if ((error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1901 zc
->zc_iflags
, &config
)) == 0) {
1902 error
= spa_vdev_attach(spa
, zc
->zc_guid
, config
, replacing
);
1903 nvlist_free(config
);
1906 spa_close(spa
, FTAG
);
1911 zfs_ioc_vdev_detach(zfs_cmd_t
*zc
)
1916 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1919 error
= spa_vdev_detach(spa
, zc
->zc_guid
, 0, B_FALSE
);
1921 spa_close(spa
, FTAG
);
1926 zfs_ioc_vdev_split(zfs_cmd_t
*zc
)
1929 nvlist_t
*config
, *props
= NULL
;
1931 boolean_t exp
= !!(zc
->zc_cookie
& ZPOOL_EXPORT_AFTER_SPLIT
);
1933 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1936 if ((error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1937 zc
->zc_iflags
, &config
))) {
1938 spa_close(spa
, FTAG
);
1942 if (zc
->zc_nvlist_src_size
!= 0 && (error
=
1943 get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
1944 zc
->zc_iflags
, &props
))) {
1945 spa_close(spa
, FTAG
);
1946 nvlist_free(config
);
1950 error
= spa_vdev_split_mirror(spa
, zc
->zc_string
, config
, props
, exp
);
1952 spa_close(spa
, FTAG
);
1954 nvlist_free(config
);
1961 zfs_ioc_vdev_setpath(zfs_cmd_t
*zc
)
1964 char *path
= zc
->zc_value
;
1965 uint64_t guid
= zc
->zc_guid
;
1968 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
1972 error
= spa_vdev_setpath(spa
, guid
, path
);
1973 spa_close(spa
, FTAG
);
1978 zfs_ioc_vdev_setfru(zfs_cmd_t
*zc
)
1981 char *fru
= zc
->zc_value
;
1982 uint64_t guid
= zc
->zc_guid
;
1985 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
1989 error
= spa_vdev_setfru(spa
, guid
, fru
);
1990 spa_close(spa
, FTAG
);
1995 zfs_ioc_objset_stats_impl(zfs_cmd_t
*zc
, objset_t
*os
)
2000 dmu_objset_fast_stat(os
, &zc
->zc_objset_stats
);
2002 if (zc
->zc_nvlist_dst
!= 0 &&
2003 (error
= dsl_prop_get_all(os
, &nv
)) == 0) {
2004 dmu_objset_stats(os
, nv
);
2006 * NB: zvol_get_stats() will read the objset contents,
2007 * which we aren't supposed to do with a
2008 * DS_MODE_USER hold, because it could be
2009 * inconsistent. So this is a bit of a workaround...
2010 * XXX reading with out owning
2012 if (!zc
->zc_objset_stats
.dds_inconsistent
&&
2013 dmu_objset_type(os
) == DMU_OST_ZVOL
) {
2014 error
= zvol_get_stats(os
, nv
);
2020 error
= put_nvlist(zc
, nv
);
2029 * zc_name name of filesystem
2030 * zc_nvlist_dst_size size of buffer for property nvlist
2033 * zc_objset_stats stats
2034 * zc_nvlist_dst property nvlist
2035 * zc_nvlist_dst_size size of property nvlist
2038 zfs_ioc_objset_stats(zfs_cmd_t
*zc
)
2043 error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
);
2045 error
= zfs_ioc_objset_stats_impl(zc
, os
);
2046 dmu_objset_rele(os
, FTAG
);
2054 * zc_name name of filesystem
2055 * zc_nvlist_dst_size size of buffer for property nvlist
2058 * zc_nvlist_dst received property nvlist
2059 * zc_nvlist_dst_size size of received property nvlist
2061 * Gets received properties (distinct from local properties on or after
2062 * SPA_VERSION_RECVD_PROPS) for callers who want to differentiate received from
2063 * local property values.
2066 zfs_ioc_objset_recvd_props(zfs_cmd_t
*zc
)
2072 * Without this check, we would return local property values if the
2073 * caller has not already received properties on or after
2074 * SPA_VERSION_RECVD_PROPS.
2076 if (!dsl_prop_get_hasrecvd(zc
->zc_name
))
2077 return (SET_ERROR(ENOTSUP
));
2079 if (zc
->zc_nvlist_dst
!= 0 &&
2080 (error
= dsl_prop_get_received(zc
->zc_name
, &nv
)) == 0) {
2081 error
= put_nvlist(zc
, nv
);
2089 nvl_add_zplprop(objset_t
*os
, nvlist_t
*props
, zfs_prop_t prop
)
2095 * zfs_get_zplprop() will either find a value or give us
2096 * the default value (if there is one).
2098 if ((error
= zfs_get_zplprop(os
, prop
, &value
)) != 0)
2100 VERIFY(nvlist_add_uint64(props
, zfs_prop_to_name(prop
), value
) == 0);
2106 * zc_name name of filesystem
2107 * zc_nvlist_dst_size size of buffer for zpl property nvlist
2110 * zc_nvlist_dst zpl property nvlist
2111 * zc_nvlist_dst_size size of zpl property nvlist
2114 zfs_ioc_objset_zplprops(zfs_cmd_t
*zc
)
2119 /* XXX reading without owning */
2120 if ((err
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
)))
2123 dmu_objset_fast_stat(os
, &zc
->zc_objset_stats
);
2126 * NB: nvl_add_zplprop() will read the objset contents,
2127 * which we aren't supposed to do with a DS_MODE_USER
2128 * hold, because it could be inconsistent.
2130 if (zc
->zc_nvlist_dst
!= 0 &&
2131 !zc
->zc_objset_stats
.dds_inconsistent
&&
2132 dmu_objset_type(os
) == DMU_OST_ZFS
) {
2135 VERIFY(nvlist_alloc(&nv
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
2136 if ((err
= nvl_add_zplprop(os
, nv
, ZFS_PROP_VERSION
)) == 0 &&
2137 (err
= nvl_add_zplprop(os
, nv
, ZFS_PROP_NORMALIZE
)) == 0 &&
2138 (err
= nvl_add_zplprop(os
, nv
, ZFS_PROP_UTF8ONLY
)) == 0 &&
2139 (err
= nvl_add_zplprop(os
, nv
, ZFS_PROP_CASE
)) == 0)
2140 err
= put_nvlist(zc
, nv
);
2143 err
= SET_ERROR(ENOENT
);
2145 dmu_objset_rele(os
, FTAG
);
2150 dataset_name_hidden(const char *name
)
2153 * Skip over datasets that are not visible in this zone,
2154 * internal datasets (which have a $ in their name), and
2155 * temporary datasets (which have a % in their name).
2157 if (strchr(name
, '$') != NULL
)
2159 if (strchr(name
, '%') != NULL
)
2161 if (!INGLOBALZONE(curproc
) && !zone_dataset_visible(name
, NULL
))
2168 * zc_name name of filesystem
2169 * zc_cookie zap cursor
2170 * zc_nvlist_dst_size size of buffer for property nvlist
2173 * zc_name name of next filesystem
2174 * zc_cookie zap cursor
2175 * zc_objset_stats stats
2176 * zc_nvlist_dst property nvlist
2177 * zc_nvlist_dst_size size of property nvlist
2180 zfs_ioc_dataset_list_next(zfs_cmd_t
*zc
)
2185 size_t orig_len
= strlen(zc
->zc_name
);
2188 if ((error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
))) {
2189 if (error
== ENOENT
)
2190 error
= SET_ERROR(ESRCH
);
2194 p
= strrchr(zc
->zc_name
, '/');
2195 if (p
== NULL
|| p
[1] != '\0')
2196 (void) strlcat(zc
->zc_name
, "/", sizeof (zc
->zc_name
));
2197 p
= zc
->zc_name
+ strlen(zc
->zc_name
);
2200 error
= dmu_dir_list_next(os
,
2201 sizeof (zc
->zc_name
) - (p
- zc
->zc_name
), p
,
2202 NULL
, &zc
->zc_cookie
);
2203 if (error
== ENOENT
)
2204 error
= SET_ERROR(ESRCH
);
2205 } while (error
== 0 && dataset_name_hidden(zc
->zc_name
));
2206 dmu_objset_rele(os
, FTAG
);
2209 * If it's an internal dataset (ie. with a '$' in its name),
2210 * don't try to get stats for it, otherwise we'll return ENOENT.
2212 if (error
== 0 && strchr(zc
->zc_name
, '$') == NULL
) {
2213 error
= zfs_ioc_objset_stats(zc
); /* fill in the stats */
2214 if (error
== ENOENT
) {
2215 /* We lost a race with destroy, get the next one. */
2216 zc
->zc_name
[orig_len
] = '\0';
2225 * zc_name name of filesystem
2226 * zc_cookie zap cursor
2227 * zc_nvlist_dst_size size of buffer for property nvlist
2230 * zc_name name of next snapshot
2231 * zc_objset_stats stats
2232 * zc_nvlist_dst property nvlist
2233 * zc_nvlist_dst_size size of property nvlist
2236 zfs_ioc_snapshot_list_next(zfs_cmd_t
*zc
)
2241 error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
);
2243 return (error
== ENOENT
? ESRCH
: error
);
2247 * A dataset name of maximum length cannot have any snapshots,
2248 * so exit immediately.
2250 if (strlcat(zc
->zc_name
, "@", sizeof (zc
->zc_name
)) >= MAXNAMELEN
) {
2251 dmu_objset_rele(os
, FTAG
);
2252 return (SET_ERROR(ESRCH
));
2255 error
= dmu_snapshot_list_next(os
,
2256 sizeof (zc
->zc_name
) - strlen(zc
->zc_name
),
2257 zc
->zc_name
+ strlen(zc
->zc_name
), &zc
->zc_obj
, &zc
->zc_cookie
,
2260 if (error
== 0 && !zc
->zc_simple
) {
2262 dsl_pool_t
*dp
= os
->os_dsl_dataset
->ds_dir
->dd_pool
;
2264 error
= dsl_dataset_hold_obj(dp
, zc
->zc_obj
, FTAG
, &ds
);
2268 error
= dmu_objset_from_ds(ds
, &ossnap
);
2270 error
= zfs_ioc_objset_stats_impl(zc
, ossnap
);
2271 dsl_dataset_rele(ds
, FTAG
);
2273 } else if (error
== ENOENT
) {
2274 error
= SET_ERROR(ESRCH
);
2277 dmu_objset_rele(os
, FTAG
);
2278 /* if we failed, undo the @ that we tacked on to zc_name */
2280 *strchr(zc
->zc_name
, '@') = '\0';
2285 zfs_prop_set_userquota(const char *dsname
, nvpair_t
*pair
)
2287 const char *propname
= nvpair_name(pair
);
2289 unsigned int vallen
;
2292 zfs_userquota_prop_t type
;
2298 if (nvpair_type(pair
) == DATA_TYPE_NVLIST
) {
2300 VERIFY(nvpair_value_nvlist(pair
, &attrs
) == 0);
2301 if (nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
2303 return (SET_ERROR(EINVAL
));
2307 * A correctly constructed propname is encoded as
2308 * userquota@<rid>-<domain>.
2310 if ((dash
= strchr(propname
, '-')) == NULL
||
2311 nvpair_value_uint64_array(pair
, &valary
, &vallen
) != 0 ||
2313 return (SET_ERROR(EINVAL
));
2320 err
= zfs_sb_hold(dsname
, FTAG
, &zsb
, B_FALSE
);
2322 err
= zfs_set_userquota(zsb
, type
, domain
, rid
, quota
);
2323 zfs_sb_rele(zsb
, FTAG
);
2330 * If the named property is one that has a special function to set its value,
2331 * return 0 on success and a positive error code on failure; otherwise if it is
2332 * not one of the special properties handled by this function, return -1.
2334 * XXX: It would be better for callers of the property interface if we handled
2335 * these special cases in dsl_prop.c (in the dsl layer).
2338 zfs_prop_set_special(const char *dsname
, zprop_source_t source
,
2341 const char *propname
= nvpair_name(pair
);
2342 zfs_prop_t prop
= zfs_name_to_prop(propname
);
2346 if (prop
== ZPROP_INVAL
) {
2347 if (zfs_prop_userquota(propname
))
2348 return (zfs_prop_set_userquota(dsname
, pair
));
2352 if (nvpair_type(pair
) == DATA_TYPE_NVLIST
) {
2354 VERIFY(nvpair_value_nvlist(pair
, &attrs
) == 0);
2355 VERIFY(nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
2359 if (zfs_prop_get_type(prop
) == PROP_TYPE_STRING
)
2362 VERIFY(0 == nvpair_value_uint64(pair
, &intval
));
2365 case ZFS_PROP_QUOTA
:
2366 err
= dsl_dir_set_quota(dsname
, source
, intval
);
2368 case ZFS_PROP_REFQUOTA
:
2369 err
= dsl_dataset_set_refquota(dsname
, source
, intval
);
2371 case ZFS_PROP_FILESYSTEM_LIMIT
:
2372 case ZFS_PROP_SNAPSHOT_LIMIT
:
2373 if (intval
== UINT64_MAX
) {
2374 /* clearing the limit, just do it */
2377 err
= dsl_dir_activate_fs_ss_limit(dsname
);
2380 * Set err to -1 to force the zfs_set_prop_nvlist code down the
2381 * default path to set the value in the nvlist.
2386 case ZFS_PROP_RESERVATION
:
2387 err
= dsl_dir_set_reservation(dsname
, source
, intval
);
2389 case ZFS_PROP_REFRESERVATION
:
2390 err
= dsl_dataset_set_refreservation(dsname
, source
, intval
);
2392 case ZFS_PROP_VOLSIZE
:
2393 err
= zvol_set_volsize(dsname
, intval
);
2395 case ZFS_PROP_SNAPDEV
:
2396 err
= zvol_set_snapdev(dsname
, source
, intval
);
2398 case ZFS_PROP_VERSION
:
2402 if ((err
= zfs_sb_hold(dsname
, FTAG
, &zsb
, B_TRUE
)) != 0)
2405 err
= zfs_set_version(zsb
, intval
);
2406 zfs_sb_rele(zsb
, FTAG
);
2408 if (err
== 0 && intval
>= ZPL_VERSION_USERSPACE
) {
2411 zc
= kmem_zalloc(sizeof (zfs_cmd_t
), KM_SLEEP
);
2412 (void) strcpy(zc
->zc_name
, dsname
);
2413 (void) zfs_ioc_userspace_upgrade(zc
);
2414 kmem_free(zc
, sizeof (zfs_cmd_t
));
2426 * This function is best effort. If it fails to set any of the given properties,
2427 * it continues to set as many as it can and returns the last error
2428 * encountered. If the caller provides a non-NULL errlist, it will be filled in
2429 * with the list of names of all the properties that failed along with the
2430 * corresponding error numbers.
2432 * If every property is set successfully, zero is returned and errlist is not
2436 zfs_set_prop_nvlist(const char *dsname
, zprop_source_t source
, nvlist_t
*nvl
,
2445 nvlist_t
*genericnvl
= fnvlist_alloc();
2446 nvlist_t
*retrynvl
= fnvlist_alloc();
2449 while ((pair
= nvlist_next_nvpair(nvl
, pair
)) != NULL
) {
2450 const char *propname
= nvpair_name(pair
);
2451 zfs_prop_t prop
= zfs_name_to_prop(propname
);
2454 /* decode the property value */
2456 if (nvpair_type(pair
) == DATA_TYPE_NVLIST
) {
2458 attrs
= fnvpair_value_nvlist(pair
);
2459 if (nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
2461 err
= SET_ERROR(EINVAL
);
2464 /* Validate value type */
2465 if (err
== 0 && prop
== ZPROP_INVAL
) {
2466 if (zfs_prop_user(propname
)) {
2467 if (nvpair_type(propval
) != DATA_TYPE_STRING
)
2468 err
= SET_ERROR(EINVAL
);
2469 } else if (zfs_prop_userquota(propname
)) {
2470 if (nvpair_type(propval
) !=
2471 DATA_TYPE_UINT64_ARRAY
)
2472 err
= SET_ERROR(EINVAL
);
2474 err
= SET_ERROR(EINVAL
);
2476 } else if (err
== 0) {
2477 if (nvpair_type(propval
) == DATA_TYPE_STRING
) {
2478 if (zfs_prop_get_type(prop
) != PROP_TYPE_STRING
)
2479 err
= SET_ERROR(EINVAL
);
2480 } else if (nvpair_type(propval
) == DATA_TYPE_UINT64
) {
2483 intval
= fnvpair_value_uint64(propval
);
2485 switch (zfs_prop_get_type(prop
)) {
2486 case PROP_TYPE_NUMBER
:
2488 case PROP_TYPE_STRING
:
2489 err
= SET_ERROR(EINVAL
);
2491 case PROP_TYPE_INDEX
:
2492 if (zfs_prop_index_to_string(prop
,
2493 intval
, &unused
) != 0)
2494 err
= SET_ERROR(EINVAL
);
2498 "unknown property type");
2501 err
= SET_ERROR(EINVAL
);
2505 /* Validate permissions */
2507 err
= zfs_check_settable(dsname
, pair
, CRED());
2510 err
= zfs_prop_set_special(dsname
, source
, pair
);
2513 * For better performance we build up a list of
2514 * properties to set in a single transaction.
2516 err
= nvlist_add_nvpair(genericnvl
, pair
);
2517 } else if (err
!= 0 && nvl
!= retrynvl
) {
2519 * This may be a spurious error caused by
2520 * receiving quota and reservation out of order.
2521 * Try again in a second pass.
2523 err
= nvlist_add_nvpair(retrynvl
, pair
);
2528 if (errlist
!= NULL
)
2529 fnvlist_add_int32(errlist
, propname
, err
);
2534 if (nvl
!= retrynvl
&& !nvlist_empty(retrynvl
)) {
2539 if (!nvlist_empty(genericnvl
) &&
2540 dsl_props_set(dsname
, source
, genericnvl
) != 0) {
2542 * If this fails, we still want to set as many properties as we
2543 * can, so try setting them individually.
2546 while ((pair
= nvlist_next_nvpair(genericnvl
, pair
)) != NULL
) {
2547 const char *propname
= nvpair_name(pair
);
2551 if (nvpair_type(pair
) == DATA_TYPE_NVLIST
) {
2553 attrs
= fnvpair_value_nvlist(pair
);
2554 propval
= fnvlist_lookup_nvpair(attrs
,
2558 if (nvpair_type(propval
) == DATA_TYPE_STRING
) {
2559 strval
= fnvpair_value_string(propval
);
2560 err
= dsl_prop_set_string(dsname
, propname
,
2563 intval
= fnvpair_value_uint64(propval
);
2564 err
= dsl_prop_set_int(dsname
, propname
, source
,
2569 if (errlist
!= NULL
) {
2570 fnvlist_add_int32(errlist
, propname
,
2577 nvlist_free(genericnvl
);
2578 nvlist_free(retrynvl
);
2584 * Check that all the properties are valid user properties.
2587 zfs_check_userprops(const char *fsname
, nvlist_t
*nvl
)
2589 nvpair_t
*pair
= NULL
;
2592 while ((pair
= nvlist_next_nvpair(nvl
, pair
)) != NULL
) {
2593 const char *propname
= nvpair_name(pair
);
2595 if (!zfs_prop_user(propname
) ||
2596 nvpair_type(pair
) != DATA_TYPE_STRING
)
2597 return (SET_ERROR(EINVAL
));
2599 if ((error
= zfs_secpolicy_write_perms(fsname
,
2600 ZFS_DELEG_PERM_USERPROP
, CRED())))
2603 if (strlen(propname
) >= ZAP_MAXNAMELEN
)
2604 return (SET_ERROR(ENAMETOOLONG
));
2606 if (strlen(fnvpair_value_string(pair
)) >= ZAP_MAXVALUELEN
)
2607 return (SET_ERROR(E2BIG
));
2613 props_skip(nvlist_t
*props
, nvlist_t
*skipped
, nvlist_t
**newprops
)
2617 VERIFY(nvlist_alloc(newprops
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
2620 while ((pair
= nvlist_next_nvpair(props
, pair
)) != NULL
) {
2621 if (nvlist_exists(skipped
, nvpair_name(pair
)))
2624 VERIFY(nvlist_add_nvpair(*newprops
, pair
) == 0);
2629 clear_received_props(const char *dsname
, nvlist_t
*props
,
2633 nvlist_t
*cleared_props
= NULL
;
2634 props_skip(props
, skipped
, &cleared_props
);
2635 if (!nvlist_empty(cleared_props
)) {
2637 * Acts on local properties until the dataset has received
2638 * properties at least once on or after SPA_VERSION_RECVD_PROPS.
2640 zprop_source_t flags
= (ZPROP_SRC_NONE
|
2641 (dsl_prop_get_hasrecvd(dsname
) ? ZPROP_SRC_RECEIVED
: 0));
2642 err
= zfs_set_prop_nvlist(dsname
, flags
, cleared_props
, NULL
);
2644 nvlist_free(cleared_props
);
2650 * zc_name name of filesystem
2651 * zc_value name of property to set
2652 * zc_nvlist_src{_size} nvlist of properties to apply
2653 * zc_cookie received properties flag
2656 * zc_nvlist_dst{_size} error for each unapplied received property
2659 zfs_ioc_set_prop(zfs_cmd_t
*zc
)
2662 boolean_t received
= zc
->zc_cookie
;
2663 zprop_source_t source
= (received
? ZPROP_SRC_RECEIVED
:
2668 if ((error
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
2669 zc
->zc_iflags
, &nvl
)) != 0)
2673 nvlist_t
*origprops
;
2675 if (dsl_prop_get_received(zc
->zc_name
, &origprops
) == 0) {
2676 (void) clear_received_props(zc
->zc_name
,
2678 nvlist_free(origprops
);
2681 error
= dsl_prop_set_hasrecvd(zc
->zc_name
);
2684 errors
= fnvlist_alloc();
2686 error
= zfs_set_prop_nvlist(zc
->zc_name
, source
, nvl
, errors
);
2688 if (zc
->zc_nvlist_dst
!= 0 && errors
!= NULL
) {
2689 (void) put_nvlist(zc
, errors
);
2692 nvlist_free(errors
);
2699 * zc_name name of filesystem
2700 * zc_value name of property to inherit
2701 * zc_cookie revert to received value if TRUE
2706 zfs_ioc_inherit_prop(zfs_cmd_t
*zc
)
2708 const char *propname
= zc
->zc_value
;
2709 zfs_prop_t prop
= zfs_name_to_prop(propname
);
2710 boolean_t received
= zc
->zc_cookie
;
2711 zprop_source_t source
= (received
2712 ? ZPROP_SRC_NONE
/* revert to received value, if any */
2713 : ZPROP_SRC_INHERITED
); /* explicitly inherit */
2722 * zfs_prop_set_special() expects properties in the form of an
2723 * nvpair with type info.
2725 if (prop
== ZPROP_INVAL
) {
2726 if (!zfs_prop_user(propname
))
2727 return (SET_ERROR(EINVAL
));
2729 type
= PROP_TYPE_STRING
;
2730 } else if (prop
== ZFS_PROP_VOLSIZE
||
2731 prop
== ZFS_PROP_VERSION
) {
2732 return (SET_ERROR(EINVAL
));
2734 type
= zfs_prop_get_type(prop
);
2737 VERIFY(nvlist_alloc(&dummy
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
2740 case PROP_TYPE_STRING
:
2741 VERIFY(0 == nvlist_add_string(dummy
, propname
, ""));
2743 case PROP_TYPE_NUMBER
:
2744 case PROP_TYPE_INDEX
:
2745 VERIFY(0 == nvlist_add_uint64(dummy
, propname
, 0));
2749 return (SET_ERROR(EINVAL
));
2752 pair
= nvlist_next_nvpair(dummy
, NULL
);
2753 err
= zfs_prop_set_special(zc
->zc_name
, source
, pair
);
2756 return (err
); /* special property already handled */
2759 * Only check this in the non-received case. We want to allow
2760 * 'inherit -S' to revert non-inheritable properties like quota
2761 * and reservation to the received or default values even though
2762 * they are not considered inheritable.
2764 if (prop
!= ZPROP_INVAL
&& !zfs_prop_inheritable(prop
))
2765 return (SET_ERROR(EINVAL
));
2768 /* property name has been validated by zfs_secpolicy_inherit_prop() */
2769 return (dsl_prop_inherit(zc
->zc_name
, zc
->zc_value
, source
));
2773 zfs_ioc_pool_set_props(zfs_cmd_t
*zc
)
2780 if ((error
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
2781 zc
->zc_iflags
, &props
)))
2785 * If the only property is the configfile, then just do a spa_lookup()
2786 * to handle the faulted case.
2788 pair
= nvlist_next_nvpair(props
, NULL
);
2789 if (pair
!= NULL
&& strcmp(nvpair_name(pair
),
2790 zpool_prop_to_name(ZPOOL_PROP_CACHEFILE
)) == 0 &&
2791 nvlist_next_nvpair(props
, pair
) == NULL
) {
2792 mutex_enter(&spa_namespace_lock
);
2793 if ((spa
= spa_lookup(zc
->zc_name
)) != NULL
) {
2794 spa_configfile_set(spa
, props
, B_FALSE
);
2795 spa_config_sync(spa
, B_FALSE
, B_TRUE
);
2797 mutex_exit(&spa_namespace_lock
);
2804 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0) {
2809 error
= spa_prop_set(spa
, props
);
2812 spa_close(spa
, FTAG
);
2818 zfs_ioc_pool_get_props(zfs_cmd_t
*zc
)
2822 nvlist_t
*nvp
= NULL
;
2824 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0) {
2826 * If the pool is faulted, there may be properties we can still
2827 * get (such as altroot and cachefile), so attempt to get them
2830 mutex_enter(&spa_namespace_lock
);
2831 if ((spa
= spa_lookup(zc
->zc_name
)) != NULL
)
2832 error
= spa_prop_get(spa
, &nvp
);
2833 mutex_exit(&spa_namespace_lock
);
2835 error
= spa_prop_get(spa
, &nvp
);
2836 spa_close(spa
, FTAG
);
2839 if (error
== 0 && zc
->zc_nvlist_dst
!= 0)
2840 error
= put_nvlist(zc
, nvp
);
2842 error
= SET_ERROR(EFAULT
);
2850 * zc_name name of filesystem
2851 * zc_nvlist_src{_size} nvlist of delegated permissions
2852 * zc_perm_action allow/unallow flag
2857 zfs_ioc_set_fsacl(zfs_cmd_t
*zc
)
2860 nvlist_t
*fsaclnv
= NULL
;
2862 if ((error
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
2863 zc
->zc_iflags
, &fsaclnv
)) != 0)
2867 * Verify nvlist is constructed correctly
2869 if ((error
= zfs_deleg_verify_nvlist(fsaclnv
)) != 0) {
2870 nvlist_free(fsaclnv
);
2871 return (SET_ERROR(EINVAL
));
2875 * If we don't have PRIV_SYS_MOUNT, then validate
2876 * that user is allowed to hand out each permission in
2880 error
= secpolicy_zfs(CRED());
2882 if (zc
->zc_perm_action
== B_FALSE
) {
2883 error
= dsl_deleg_can_allow(zc
->zc_name
,
2886 error
= dsl_deleg_can_unallow(zc
->zc_name
,
2892 error
= dsl_deleg_set(zc
->zc_name
, fsaclnv
, zc
->zc_perm_action
);
2894 nvlist_free(fsaclnv
);
2900 * zc_name name of filesystem
2903 * zc_nvlist_src{_size} nvlist of delegated permissions
2906 zfs_ioc_get_fsacl(zfs_cmd_t
*zc
)
2911 if ((error
= dsl_deleg_get(zc
->zc_name
, &nvp
)) == 0) {
2912 error
= put_nvlist(zc
, nvp
);
2921 zfs_create_cb(objset_t
*os
, void *arg
, cred_t
*cr
, dmu_tx_t
*tx
)
2923 zfs_creat_t
*zct
= arg
;
2925 zfs_create_fs(os
, cr
, zct
->zct_zplprops
, tx
);
2928 #define ZFS_PROP_UNDEFINED ((uint64_t)-1)
2932 * os parent objset pointer (NULL if root fs)
2933 * fuids_ok fuids allowed in this version of the spa?
2934 * sa_ok SAs allowed in this version of the spa?
2935 * createprops list of properties requested by creator
2938 * zplprops values for the zplprops we attach to the master node object
2939 * is_ci true if requested file system will be purely case-insensitive
2941 * Determine the settings for utf8only, normalization and
2942 * casesensitivity. Specific values may have been requested by the
2943 * creator and/or we can inherit values from the parent dataset. If
2944 * the file system is of too early a vintage, a creator can not
2945 * request settings for these properties, even if the requested
2946 * setting is the default value. We don't actually want to create dsl
2947 * properties for these, so remove them from the source nvlist after
2951 zfs_fill_zplprops_impl(objset_t
*os
, uint64_t zplver
,
2952 boolean_t fuids_ok
, boolean_t sa_ok
, nvlist_t
*createprops
,
2953 nvlist_t
*zplprops
, boolean_t
*is_ci
)
2955 uint64_t sense
= ZFS_PROP_UNDEFINED
;
2956 uint64_t norm
= ZFS_PROP_UNDEFINED
;
2957 uint64_t u8
= ZFS_PROP_UNDEFINED
;
2960 ASSERT(zplprops
!= NULL
);
2963 * Pull out creator prop choices, if any.
2966 (void) nvlist_lookup_uint64(createprops
,
2967 zfs_prop_to_name(ZFS_PROP_VERSION
), &zplver
);
2968 (void) nvlist_lookup_uint64(createprops
,
2969 zfs_prop_to_name(ZFS_PROP_NORMALIZE
), &norm
);
2970 (void) nvlist_remove_all(createprops
,
2971 zfs_prop_to_name(ZFS_PROP_NORMALIZE
));
2972 (void) nvlist_lookup_uint64(createprops
,
2973 zfs_prop_to_name(ZFS_PROP_UTF8ONLY
), &u8
);
2974 (void) nvlist_remove_all(createprops
,
2975 zfs_prop_to_name(ZFS_PROP_UTF8ONLY
));
2976 (void) nvlist_lookup_uint64(createprops
,
2977 zfs_prop_to_name(ZFS_PROP_CASE
), &sense
);
2978 (void) nvlist_remove_all(createprops
,
2979 zfs_prop_to_name(ZFS_PROP_CASE
));
2983 * If the zpl version requested is whacky or the file system
2984 * or pool is version is too "young" to support normalization
2985 * and the creator tried to set a value for one of the props,
2988 if ((zplver
< ZPL_VERSION_INITIAL
|| zplver
> ZPL_VERSION
) ||
2989 (zplver
>= ZPL_VERSION_FUID
&& !fuids_ok
) ||
2990 (zplver
>= ZPL_VERSION_SA
&& !sa_ok
) ||
2991 (zplver
< ZPL_VERSION_NORMALIZATION
&&
2992 (norm
!= ZFS_PROP_UNDEFINED
|| u8
!= ZFS_PROP_UNDEFINED
||
2993 sense
!= ZFS_PROP_UNDEFINED
)))
2994 return (SET_ERROR(ENOTSUP
));
2997 * Put the version in the zplprops
2999 VERIFY(nvlist_add_uint64(zplprops
,
3000 zfs_prop_to_name(ZFS_PROP_VERSION
), zplver
) == 0);
3002 if (norm
== ZFS_PROP_UNDEFINED
&&
3003 (error
= zfs_get_zplprop(os
, ZFS_PROP_NORMALIZE
, &norm
)) != 0)
3005 VERIFY(nvlist_add_uint64(zplprops
,
3006 zfs_prop_to_name(ZFS_PROP_NORMALIZE
), norm
) == 0);
3009 * If we're normalizing, names must always be valid UTF-8 strings.
3013 if (u8
== ZFS_PROP_UNDEFINED
&&
3014 (error
= zfs_get_zplprop(os
, ZFS_PROP_UTF8ONLY
, &u8
)) != 0)
3016 VERIFY(nvlist_add_uint64(zplprops
,
3017 zfs_prop_to_name(ZFS_PROP_UTF8ONLY
), u8
) == 0);
3019 if (sense
== ZFS_PROP_UNDEFINED
&&
3020 (error
= zfs_get_zplprop(os
, ZFS_PROP_CASE
, &sense
)) != 0)
3022 VERIFY(nvlist_add_uint64(zplprops
,
3023 zfs_prop_to_name(ZFS_PROP_CASE
), sense
) == 0);
3026 *is_ci
= (sense
== ZFS_CASE_INSENSITIVE
);
3032 zfs_fill_zplprops(const char *dataset
, nvlist_t
*createprops
,
3033 nvlist_t
*zplprops
, boolean_t
*is_ci
)
3035 boolean_t fuids_ok
, sa_ok
;
3036 uint64_t zplver
= ZPL_VERSION
;
3037 objset_t
*os
= NULL
;
3038 char parentname
[MAXNAMELEN
];
3044 (void) strlcpy(parentname
, dataset
, sizeof (parentname
));
3045 cp
= strrchr(parentname
, '/');
3049 if ((error
= spa_open(dataset
, &spa
, FTAG
)) != 0)
3052 spa_vers
= spa_version(spa
);
3053 spa_close(spa
, FTAG
);
3055 zplver
= zfs_zpl_version_map(spa_vers
);
3056 fuids_ok
= (zplver
>= ZPL_VERSION_FUID
);
3057 sa_ok
= (zplver
>= ZPL_VERSION_SA
);
3060 * Open parent object set so we can inherit zplprop values.
3062 if ((error
= dmu_objset_hold(parentname
, FTAG
, &os
)) != 0)
3065 error
= zfs_fill_zplprops_impl(os
, zplver
, fuids_ok
, sa_ok
, createprops
,
3067 dmu_objset_rele(os
, FTAG
);
3072 zfs_fill_zplprops_root(uint64_t spa_vers
, nvlist_t
*createprops
,
3073 nvlist_t
*zplprops
, boolean_t
*is_ci
)
3077 uint64_t zplver
= ZPL_VERSION
;
3080 zplver
= zfs_zpl_version_map(spa_vers
);
3081 fuids_ok
= (zplver
>= ZPL_VERSION_FUID
);
3082 sa_ok
= (zplver
>= ZPL_VERSION_SA
);
3084 error
= zfs_fill_zplprops_impl(NULL
, zplver
, fuids_ok
, sa_ok
,
3085 createprops
, zplprops
, is_ci
);
3091 * "type" -> dmu_objset_type_t (int32)
3092 * (optional) "props" -> { prop -> value }
3095 * outnvl: propname -> error code (int32)
3098 zfs_ioc_create(const char *fsname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
3101 zfs_creat_t zct
= { 0 };
3102 nvlist_t
*nvprops
= NULL
;
3103 void (*cbfunc
)(objset_t
*os
, void *arg
, cred_t
*cr
, dmu_tx_t
*tx
);
3105 dmu_objset_type_t type
;
3106 boolean_t is_insensitive
= B_FALSE
;
3108 if (nvlist_lookup_int32(innvl
, "type", &type32
) != 0)
3109 return (SET_ERROR(EINVAL
));
3111 (void) nvlist_lookup_nvlist(innvl
, "props", &nvprops
);
3115 cbfunc
= zfs_create_cb
;
3119 cbfunc
= zvol_create_cb
;
3126 if (strchr(fsname
, '@') ||
3127 strchr(fsname
, '%'))
3128 return (SET_ERROR(EINVAL
));
3130 zct
.zct_props
= nvprops
;
3133 return (SET_ERROR(EINVAL
));
3135 if (type
== DMU_OST_ZVOL
) {
3136 uint64_t volsize
, volblocksize
;
3138 if (nvprops
== NULL
)
3139 return (SET_ERROR(EINVAL
));
3140 if (nvlist_lookup_uint64(nvprops
,
3141 zfs_prop_to_name(ZFS_PROP_VOLSIZE
), &volsize
) != 0)
3142 return (SET_ERROR(EINVAL
));
3144 if ((error
= nvlist_lookup_uint64(nvprops
,
3145 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE
),
3146 &volblocksize
)) != 0 && error
!= ENOENT
)
3147 return (SET_ERROR(EINVAL
));
3150 volblocksize
= zfs_prop_default_numeric(
3151 ZFS_PROP_VOLBLOCKSIZE
);
3153 if ((error
= zvol_check_volblocksize(fsname
,
3154 volblocksize
)) != 0 ||
3155 (error
= zvol_check_volsize(volsize
,
3156 volblocksize
)) != 0)
3158 } else if (type
== DMU_OST_ZFS
) {
3162 * We have to have normalization and
3163 * case-folding flags correct when we do the
3164 * file system creation, so go figure them out
3167 VERIFY(nvlist_alloc(&zct
.zct_zplprops
,
3168 NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
3169 error
= zfs_fill_zplprops(fsname
, nvprops
,
3170 zct
.zct_zplprops
, &is_insensitive
);
3172 nvlist_free(zct
.zct_zplprops
);
3177 error
= dmu_objset_create(fsname
, type
,
3178 is_insensitive
? DS_FLAG_CI_DATASET
: 0, cbfunc
, &zct
);
3179 nvlist_free(zct
.zct_zplprops
);
3182 * It would be nice to do this atomically.
3185 error
= zfs_set_prop_nvlist(fsname
, ZPROP_SRC_LOCAL
,
3188 (void) dsl_destroy_head(fsname
);
3195 * "origin" -> name of origin snapshot
3196 * (optional) "props" -> { prop -> value }
3200 * outnvl: propname -> error code (int32)
3203 zfs_ioc_clone(const char *fsname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
3206 nvlist_t
*nvprops
= NULL
;
3209 if (nvlist_lookup_string(innvl
, "origin", &origin_name
) != 0)
3210 return (SET_ERROR(EINVAL
));
3211 (void) nvlist_lookup_nvlist(innvl
, "props", &nvprops
);
3213 if (strchr(fsname
, '@') ||
3214 strchr(fsname
, '%'))
3215 return (SET_ERROR(EINVAL
));
3217 if (dataset_namecheck(origin_name
, NULL
, NULL
) != 0)
3218 return (SET_ERROR(EINVAL
));
3219 error
= dmu_objset_clone(fsname
, origin_name
);
3224 * It would be nice to do this atomically.
3227 error
= zfs_set_prop_nvlist(fsname
, ZPROP_SRC_LOCAL
,
3230 (void) dsl_destroy_head(fsname
);
3237 * "snaps" -> { snapshot1, snapshot2 }
3238 * (optional) "props" -> { prop -> value (string) }
3241 * outnvl: snapshot -> error code (int32)
3244 zfs_ioc_snapshot(const char *poolname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
3247 nvlist_t
*props
= NULL
;
3249 nvpair_t
*pair
, *pair2
;
3251 (void) nvlist_lookup_nvlist(innvl
, "props", &props
);
3252 if ((error
= zfs_check_userprops(poolname
, props
)) != 0)
3255 if (!nvlist_empty(props
) &&
3256 zfs_earlier_version(poolname
, SPA_VERSION_SNAP_PROPS
))
3257 return (SET_ERROR(ENOTSUP
));
3259 if (nvlist_lookup_nvlist(innvl
, "snaps", &snaps
) != 0)
3260 return (SET_ERROR(EINVAL
));
3261 poollen
= strlen(poolname
);
3262 for (pair
= nvlist_next_nvpair(snaps
, NULL
); pair
!= NULL
;
3263 pair
= nvlist_next_nvpair(snaps
, pair
)) {
3264 const char *name
= nvpair_name(pair
);
3265 const char *cp
= strchr(name
, '@');
3268 * The snap name must contain an @, and the part after it must
3269 * contain only valid characters.
3272 zfs_component_namecheck(cp
+ 1, NULL
, NULL
) != 0)
3273 return (SET_ERROR(EINVAL
));
3276 * The snap must be in the specified pool.
3278 if (strncmp(name
, poolname
, poollen
) != 0 ||
3279 (name
[poollen
] != '/' && name
[poollen
] != '@'))
3280 return (SET_ERROR(EXDEV
));
3282 /* This must be the only snap of this fs. */
3283 for (pair2
= nvlist_next_nvpair(snaps
, pair
);
3284 pair2
!= NULL
; pair2
= nvlist_next_nvpair(snaps
, pair2
)) {
3285 if (strncmp(name
, nvpair_name(pair2
), cp
- name
+ 1)
3287 return (SET_ERROR(EXDEV
));
3292 error
= dsl_dataset_snapshot(snaps
, props
, outnvl
);
3298 * innvl: "message" -> string
3302 zfs_ioc_log_history(const char *unused
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
3310 * The poolname in the ioctl is not set, we get it from the TSD,
3311 * which was set at the end of the last successful ioctl that allows
3312 * logging. The secpolicy func already checked that it is set.
3313 * Only one log ioctl is allowed after each successful ioctl, so
3314 * we clear the TSD here.
3316 poolname
= tsd_get(zfs_allow_log_key
);
3317 (void) tsd_set(zfs_allow_log_key
, NULL
);
3318 error
= spa_open(poolname
, &spa
, FTAG
);
3323 if (nvlist_lookup_string(innvl
, "message", &message
) != 0) {
3324 spa_close(spa
, FTAG
);
3325 return (SET_ERROR(EINVAL
));
3328 if (spa_version(spa
) < SPA_VERSION_ZPOOL_HISTORY
) {
3329 spa_close(spa
, FTAG
);
3330 return (SET_ERROR(ENOTSUP
));
3333 error
= spa_history_log(spa
, message
);
3334 spa_close(spa
, FTAG
);
3339 * The dp_config_rwlock must not be held when calling this, because the
3340 * unmount may need to write out data.
3342 * This function is best-effort. Callers must deal gracefully if it
3343 * remains mounted (or is remounted after this call).
3345 * Returns 0 if the argument is not a snapshot, or it is not currently a
3346 * filesystem, or we were able to unmount it. Returns error code otherwise.
3349 zfs_unmount_snap(const char *snapname
)
3353 if (strchr(snapname
, '@') == NULL
)
3356 err
= zfsctl_snapshot_unmount((char *)snapname
, MNT_FORCE
);
3357 if (err
!= 0 && err
!= ENOENT
)
3358 return (SET_ERROR(err
));
3365 zfs_unmount_snap_cb(const char *snapname
, void *arg
)
3367 return (zfs_unmount_snap(snapname
));
3371 * When a clone is destroyed, its origin may also need to be destroyed,
3372 * in which case it must be unmounted. This routine will do that unmount
3376 zfs_destroy_unmount_origin(const char *fsname
)
3382 error
= dmu_objset_hold(fsname
, FTAG
, &os
);
3385 ds
= dmu_objset_ds(os
);
3386 if (dsl_dir_is_clone(ds
->ds_dir
) && DS_IS_DEFER_DESTROY(ds
->ds_prev
)) {
3387 char originname
[MAXNAMELEN
];
3388 dsl_dataset_name(ds
->ds_prev
, originname
);
3389 dmu_objset_rele(os
, FTAG
);
3390 (void) zfs_unmount_snap(originname
);
3392 dmu_objset_rele(os
, FTAG
);
3398 * "snaps" -> { snapshot1, snapshot2 }
3399 * (optional boolean) "defer"
3402 * outnvl: snapshot -> error code (int32)
3406 zfs_ioc_destroy_snaps(const char *poolname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
3412 if (nvlist_lookup_nvlist(innvl
, "snaps", &snaps
) != 0)
3413 return (SET_ERROR(EINVAL
));
3414 defer
= nvlist_exists(innvl
, "defer");
3416 for (pair
= nvlist_next_nvpair(snaps
, NULL
); pair
!= NULL
;
3417 pair
= nvlist_next_nvpair(snaps
, pair
)) {
3418 (void) zfs_unmount_snap(nvpair_name(pair
));
3421 return (dsl_destroy_snapshots_nvl(snaps
, defer
, outnvl
));
3425 * Create bookmarks. Bookmark names are of the form <fs>#<bmark>.
3426 * All bookmarks must be in the same pool.
3429 * bookmark1 -> snapshot1, bookmark2 -> snapshot2
3432 * outnvl: bookmark -> error code (int32)
3437 zfs_ioc_bookmark(const char *poolname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
3439 nvpair_t
*pair
, *pair2
;
3441 for (pair
= nvlist_next_nvpair(innvl
, NULL
);
3442 pair
!= NULL
; pair
= nvlist_next_nvpair(innvl
, pair
)) {
3446 * Verify the snapshot argument.
3448 if (nvpair_value_string(pair
, &snap_name
) != 0)
3449 return (SET_ERROR(EINVAL
));
3452 /* Verify that the keys (bookmarks) are unique */
3453 for (pair2
= nvlist_next_nvpair(innvl
, pair
);
3454 pair2
!= NULL
; pair2
= nvlist_next_nvpair(innvl
, pair2
)) {
3455 if (strcmp(nvpair_name(pair
), nvpair_name(pair2
)) == 0)
3456 return (SET_ERROR(EINVAL
));
3460 return (dsl_bookmark_create(innvl
, outnvl
));
3465 * property 1, property 2, ...
3469 * bookmark name 1 -> { property 1, property 2, ... },
3470 * bookmark name 2 -> { property 1, property 2, ... }
3475 zfs_ioc_get_bookmarks(const char *fsname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
3477 return (dsl_get_bookmarks(fsname
, innvl
, outnvl
));
3482 * bookmark name 1, bookmark name 2
3485 * outnvl: bookmark -> error code (int32)
3489 zfs_ioc_destroy_bookmarks(const char *poolname
, nvlist_t
*innvl
,
3495 poollen
= strlen(poolname
);
3496 for (pair
= nvlist_next_nvpair(innvl
, NULL
);
3497 pair
!= NULL
; pair
= nvlist_next_nvpair(innvl
, pair
)) {
3498 const char *name
= nvpair_name(pair
);
3499 const char *cp
= strchr(name
, '#');
3502 * The bookmark name must contain an #, and the part after it
3503 * must contain only valid characters.
3506 zfs_component_namecheck(cp
+ 1, NULL
, NULL
) != 0)
3507 return (SET_ERROR(EINVAL
));
3510 * The bookmark must be in the specified pool.
3512 if (strncmp(name
, poolname
, poollen
) != 0 ||
3513 (name
[poollen
] != '/' && name
[poollen
] != '#'))
3514 return (SET_ERROR(EXDEV
));
3517 error
= dsl_bookmark_destroy(innvl
, outnvl
);
3523 * zc_name name of dataset to destroy
3524 * zc_objset_type type of objset
3525 * zc_defer_destroy mark for deferred destroy
3530 zfs_ioc_destroy(zfs_cmd_t
*zc
)
3534 if (zc
->zc_objset_type
== DMU_OST_ZFS
) {
3535 err
= zfs_unmount_snap(zc
->zc_name
);
3540 if (strchr(zc
->zc_name
, '@'))
3541 err
= dsl_destroy_snapshot(zc
->zc_name
, zc
->zc_defer_destroy
);
3543 err
= dsl_destroy_head(zc
->zc_name
);
3549 * fsname is name of dataset to rollback (to most recent snapshot)
3551 * innvl is not used.
3553 * outnvl: "target" -> name of most recent snapshot
3558 zfs_ioc_rollback(const char *fsname
, nvlist_t
*args
, nvlist_t
*outnvl
)
3563 if (get_zfs_sb(fsname
, &zsb
) == 0) {
3564 error
= zfs_suspend_fs(zsb
);
3568 error
= dsl_dataset_rollback(fsname
, zsb
, outnvl
);
3569 resume_err
= zfs_resume_fs(zsb
, fsname
);
3570 error
= error
? error
: resume_err
;
3572 deactivate_super(zsb
->z_sb
);
3574 error
= dsl_dataset_rollback(fsname
, NULL
, outnvl
);
3580 recursive_unmount(const char *fsname
, void *arg
)
3582 const char *snapname
= arg
;
3586 fullname
= kmem_asprintf("%s@%s", fsname
, snapname
);
3587 error
= zfs_unmount_snap(fullname
);
3595 * zc_name old name of dataset
3596 * zc_value new name of dataset
3597 * zc_cookie recursive flag (only valid for snapshots)
3602 zfs_ioc_rename(zfs_cmd_t
*zc
)
3604 boolean_t recursive
= zc
->zc_cookie
& 1;
3607 zc
->zc_value
[sizeof (zc
->zc_value
) - 1] = '\0';
3608 if (dataset_namecheck(zc
->zc_value
, NULL
, NULL
) != 0 ||
3609 strchr(zc
->zc_value
, '%'))
3610 return (SET_ERROR(EINVAL
));
3612 at
= strchr(zc
->zc_name
, '@');
3614 /* snaps must be in same fs */
3617 if (strncmp(zc
->zc_name
, zc
->zc_value
, at
- zc
->zc_name
+ 1))
3618 return (SET_ERROR(EXDEV
));
3620 if (zc
->zc_objset_type
== DMU_OST_ZFS
) {
3621 error
= dmu_objset_find(zc
->zc_name
,
3622 recursive_unmount
, at
+ 1,
3623 recursive
? DS_FIND_CHILDREN
: 0);
3629 error
= dsl_dataset_rename_snapshot(zc
->zc_name
,
3630 at
+ 1, strchr(zc
->zc_value
, '@') + 1, recursive
);
3635 return (dsl_dir_rename(zc
->zc_name
, zc
->zc_value
));
3640 zfs_check_settable(const char *dsname
, nvpair_t
*pair
, cred_t
*cr
)
3642 const char *propname
= nvpair_name(pair
);
3643 boolean_t issnap
= (strchr(dsname
, '@') != NULL
);
3644 zfs_prop_t prop
= zfs_name_to_prop(propname
);
3648 if (prop
== ZPROP_INVAL
) {
3649 if (zfs_prop_user(propname
)) {
3650 if ((err
= zfs_secpolicy_write_perms(dsname
,
3651 ZFS_DELEG_PERM_USERPROP
, cr
)))
3656 if (!issnap
&& zfs_prop_userquota(propname
)) {
3657 const char *perm
= NULL
;
3658 const char *uq_prefix
=
3659 zfs_userquota_prop_prefixes
[ZFS_PROP_USERQUOTA
];
3660 const char *gq_prefix
=
3661 zfs_userquota_prop_prefixes
[ZFS_PROP_GROUPQUOTA
];
3663 if (strncmp(propname
, uq_prefix
,
3664 strlen(uq_prefix
)) == 0) {
3665 perm
= ZFS_DELEG_PERM_USERQUOTA
;
3666 } else if (strncmp(propname
, gq_prefix
,
3667 strlen(gq_prefix
)) == 0) {
3668 perm
= ZFS_DELEG_PERM_GROUPQUOTA
;
3670 /* USERUSED and GROUPUSED are read-only */
3671 return (SET_ERROR(EINVAL
));
3674 if ((err
= zfs_secpolicy_write_perms(dsname
, perm
, cr
)))
3679 return (SET_ERROR(EINVAL
));
3683 return (SET_ERROR(EINVAL
));
3685 if (nvpair_type(pair
) == DATA_TYPE_NVLIST
) {
3687 * dsl_prop_get_all_impl() returns properties in this
3691 VERIFY(nvpair_value_nvlist(pair
, &attrs
) == 0);
3692 VERIFY(nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
3697 * Check that this value is valid for this pool version
3700 case ZFS_PROP_COMPRESSION
:
3702 * If the user specified gzip compression, make sure
3703 * the SPA supports it. We ignore any errors here since
3704 * we'll catch them later.
3706 if (nvpair_value_uint64(pair
, &intval
) == 0) {
3707 if (intval
>= ZIO_COMPRESS_GZIP_1
&&
3708 intval
<= ZIO_COMPRESS_GZIP_9
&&
3709 zfs_earlier_version(dsname
,
3710 SPA_VERSION_GZIP_COMPRESSION
)) {
3711 return (SET_ERROR(ENOTSUP
));
3714 if (intval
== ZIO_COMPRESS_ZLE
&&
3715 zfs_earlier_version(dsname
,
3716 SPA_VERSION_ZLE_COMPRESSION
))
3717 return (SET_ERROR(ENOTSUP
));
3719 if (intval
== ZIO_COMPRESS_LZ4
) {
3722 if ((err
= spa_open(dsname
, &spa
, FTAG
)) != 0)
3725 if (!spa_feature_is_enabled(spa
,
3726 SPA_FEATURE_LZ4_COMPRESS
)) {
3727 spa_close(spa
, FTAG
);
3728 return (SET_ERROR(ENOTSUP
));
3730 spa_close(spa
, FTAG
);
3734 * If this is a bootable dataset then
3735 * verify that the compression algorithm
3736 * is supported for booting. We must return
3737 * something other than ENOTSUP since it
3738 * implies a downrev pool version.
3740 if (zfs_is_bootfs(dsname
) &&
3741 !BOOTFS_COMPRESS_VALID(intval
)) {
3742 return (SET_ERROR(ERANGE
));
3747 case ZFS_PROP_COPIES
:
3748 if (zfs_earlier_version(dsname
, SPA_VERSION_DITTO_BLOCKS
))
3749 return (SET_ERROR(ENOTSUP
));
3752 case ZFS_PROP_DEDUP
:
3753 if (zfs_earlier_version(dsname
, SPA_VERSION_DEDUP
))
3754 return (SET_ERROR(ENOTSUP
));
3757 case ZFS_PROP_VOLBLOCKSIZE
:
3758 case ZFS_PROP_RECORDSIZE
:
3759 /* Record sizes above 128k need the feature to be enabled */
3760 if (nvpair_value_uint64(pair
, &intval
) == 0 &&
3761 intval
> SPA_OLD_MAXBLOCKSIZE
) {
3765 * If this is a bootable dataset then
3766 * the we don't allow large (>128K) blocks,
3767 * because GRUB doesn't support them.
3769 if (zfs_is_bootfs(dsname
) &&
3770 intval
> SPA_OLD_MAXBLOCKSIZE
) {
3771 return (SET_ERROR(EDOM
));
3775 * We don't allow setting the property above 1MB,
3776 * unless the tunable has been changed.
3778 if (intval
> zfs_max_recordsize
||
3779 intval
> SPA_MAXBLOCKSIZE
)
3780 return (SET_ERROR(EDOM
));
3782 if ((err
= spa_open(dsname
, &spa
, FTAG
)) != 0)
3785 if (!spa_feature_is_enabled(spa
,
3786 SPA_FEATURE_LARGE_BLOCKS
)) {
3787 spa_close(spa
, FTAG
);
3788 return (SET_ERROR(ENOTSUP
));
3790 spa_close(spa
, FTAG
);
3794 case ZFS_PROP_SHARESMB
:
3795 if (zpl_earlier_version(dsname
, ZPL_VERSION_FUID
))
3796 return (SET_ERROR(ENOTSUP
));
3799 case ZFS_PROP_ACLINHERIT
:
3800 if (nvpair_type(pair
) == DATA_TYPE_UINT64
&&
3801 nvpair_value_uint64(pair
, &intval
) == 0) {
3802 if (intval
== ZFS_ACL_PASSTHROUGH_X
&&
3803 zfs_earlier_version(dsname
,
3804 SPA_VERSION_PASSTHROUGH_X
))
3805 return (SET_ERROR(ENOTSUP
));
3812 return (zfs_secpolicy_setprop(dsname
, prop
, pair
, CRED()));
3816 * Removes properties from the given props list that fail permission checks
3817 * needed to clear them and to restore them in case of a receive error. For each
3818 * property, make sure we have both set and inherit permissions.
3820 * Returns the first error encountered if any permission checks fail. If the
3821 * caller provides a non-NULL errlist, it also gives the complete list of names
3822 * of all the properties that failed a permission check along with the
3823 * corresponding error numbers. The caller is responsible for freeing the
3826 * If every property checks out successfully, zero is returned and the list
3827 * pointed at by errlist is NULL.
3830 zfs_check_clearable(char *dataset
, nvlist_t
*props
, nvlist_t
**errlist
)
3833 nvpair_t
*pair
, *next_pair
;
3840 VERIFY(nvlist_alloc(&errors
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
3842 zc
= kmem_alloc(sizeof (zfs_cmd_t
), KM_SLEEP
);
3843 (void) strcpy(zc
->zc_name
, dataset
);
3844 pair
= nvlist_next_nvpair(props
, NULL
);
3845 while (pair
!= NULL
) {
3846 next_pair
= nvlist_next_nvpair(props
, pair
);
3848 (void) strcpy(zc
->zc_value
, nvpair_name(pair
));
3849 if ((err
= zfs_check_settable(dataset
, pair
, CRED())) != 0 ||
3850 (err
= zfs_secpolicy_inherit_prop(zc
, NULL
, CRED())) != 0) {
3851 VERIFY(nvlist_remove_nvpair(props
, pair
) == 0);
3852 VERIFY(nvlist_add_int32(errors
,
3853 zc
->zc_value
, err
) == 0);
3857 kmem_free(zc
, sizeof (zfs_cmd_t
));
3859 if ((pair
= nvlist_next_nvpair(errors
, NULL
)) == NULL
) {
3860 nvlist_free(errors
);
3863 VERIFY(nvpair_value_int32(pair
, &rv
) == 0);
3866 if (errlist
== NULL
)
3867 nvlist_free(errors
);
3875 propval_equals(nvpair_t
*p1
, nvpair_t
*p2
)
3877 if (nvpair_type(p1
) == DATA_TYPE_NVLIST
) {
3878 /* dsl_prop_get_all_impl() format */
3880 VERIFY(nvpair_value_nvlist(p1
, &attrs
) == 0);
3881 VERIFY(nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
3885 if (nvpair_type(p2
) == DATA_TYPE_NVLIST
) {
3887 VERIFY(nvpair_value_nvlist(p2
, &attrs
) == 0);
3888 VERIFY(nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
3892 if (nvpair_type(p1
) != nvpair_type(p2
))
3895 if (nvpair_type(p1
) == DATA_TYPE_STRING
) {
3896 char *valstr1
, *valstr2
;
3898 VERIFY(nvpair_value_string(p1
, (char **)&valstr1
) == 0);
3899 VERIFY(nvpair_value_string(p2
, (char **)&valstr2
) == 0);
3900 return (strcmp(valstr1
, valstr2
) == 0);
3902 uint64_t intval1
, intval2
;
3904 VERIFY(nvpair_value_uint64(p1
, &intval1
) == 0);
3905 VERIFY(nvpair_value_uint64(p2
, &intval2
) == 0);
3906 return (intval1
== intval2
);
3911 * Remove properties from props if they are not going to change (as determined
3912 * by comparison with origprops). Remove them from origprops as well, since we
3913 * do not need to clear or restore properties that won't change.
3916 props_reduce(nvlist_t
*props
, nvlist_t
*origprops
)
3918 nvpair_t
*pair
, *next_pair
;
3920 if (origprops
== NULL
)
3921 return; /* all props need to be received */
3923 pair
= nvlist_next_nvpair(props
, NULL
);
3924 while (pair
!= NULL
) {
3925 const char *propname
= nvpair_name(pair
);
3928 next_pair
= nvlist_next_nvpair(props
, pair
);
3930 if ((nvlist_lookup_nvpair(origprops
, propname
,
3931 &match
) != 0) || !propval_equals(pair
, match
))
3932 goto next
; /* need to set received value */
3934 /* don't clear the existing received value */
3935 (void) nvlist_remove_nvpair(origprops
, match
);
3936 /* don't bother receiving the property */
3937 (void) nvlist_remove_nvpair(props
, pair
);
3944 static boolean_t zfs_ioc_recv_inject_err
;
3949 * zc_name name of containing filesystem
3950 * zc_nvlist_src{_size} nvlist of properties to apply
3951 * zc_value name of snapshot to create
3952 * zc_string name of clone origin (if DRR_FLAG_CLONE)
3953 * zc_cookie file descriptor to recv from
3954 * zc_begin_record the BEGIN record of the stream (not byteswapped)
3955 * zc_guid force flag
3956 * zc_cleanup_fd cleanup-on-exit file descriptor
3957 * zc_action_handle handle for this guid/ds mapping (or zero on first call)
3960 * zc_cookie number of bytes read
3961 * zc_nvlist_dst{_size} error for each unapplied received property
3962 * zc_obj zprop_errflags_t
3963 * zc_action_handle handle for this guid/ds mapping
3966 zfs_ioc_recv(zfs_cmd_t
*zc
)
3969 dmu_recv_cookie_t drc
;
3970 boolean_t force
= (boolean_t
)zc
->zc_guid
;
3973 int props_error
= 0;
3976 nvlist_t
*props
= NULL
; /* sent properties */
3977 nvlist_t
*origprops
= NULL
; /* existing properties */
3978 char *origin
= NULL
;
3980 char tofs
[ZFS_MAXNAMELEN
];
3981 boolean_t first_recvd_props
= B_FALSE
;
3983 if (dataset_namecheck(zc
->zc_value
, NULL
, NULL
) != 0 ||
3984 strchr(zc
->zc_value
, '@') == NULL
||
3985 strchr(zc
->zc_value
, '%'))
3986 return (SET_ERROR(EINVAL
));
3988 (void) strcpy(tofs
, zc
->zc_value
);
3989 tosnap
= strchr(tofs
, '@');
3992 if (zc
->zc_nvlist_src
!= 0 &&
3993 (error
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
3994 zc
->zc_iflags
, &props
)) != 0)
4001 return (SET_ERROR(EBADF
));
4004 VERIFY(nvlist_alloc(&errors
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
4006 if (zc
->zc_string
[0])
4007 origin
= zc
->zc_string
;
4009 error
= dmu_recv_begin(tofs
, tosnap
,
4010 &zc
->zc_begin_record
, force
, origin
, &drc
);
4015 * Set properties before we receive the stream so that they are applied
4016 * to the new data. Note that we must call dmu_recv_stream() if
4017 * dmu_recv_begin() succeeds.
4019 if (props
!= NULL
&& !drc
.drc_newfs
) {
4020 if (spa_version(dsl_dataset_get_spa(drc
.drc_ds
)) >=
4021 SPA_VERSION_RECVD_PROPS
&&
4022 !dsl_prop_get_hasrecvd(tofs
))
4023 first_recvd_props
= B_TRUE
;
4026 * If new received properties are supplied, they are to
4027 * completely replace the existing received properties, so stash
4028 * away the existing ones.
4030 if (dsl_prop_get_received(tofs
, &origprops
) == 0) {
4031 nvlist_t
*errlist
= NULL
;
4033 * Don't bother writing a property if its value won't
4034 * change (and avoid the unnecessary security checks).
4036 * The first receive after SPA_VERSION_RECVD_PROPS is a
4037 * special case where we blow away all local properties
4040 if (!first_recvd_props
)
4041 props_reduce(props
, origprops
);
4042 if (zfs_check_clearable(tofs
, origprops
, &errlist
) != 0)
4043 (void) nvlist_merge(errors
, errlist
, 0);
4044 nvlist_free(errlist
);
4046 if (clear_received_props(tofs
, origprops
,
4047 first_recvd_props
? NULL
: props
) != 0)
4048 zc
->zc_obj
|= ZPROP_ERR_NOCLEAR
;
4050 zc
->zc_obj
|= ZPROP_ERR_NOCLEAR
;
4054 if (props
!= NULL
) {
4055 props_error
= dsl_prop_set_hasrecvd(tofs
);
4057 if (props_error
== 0) {
4058 (void) zfs_set_prop_nvlist(tofs
, ZPROP_SRC_RECEIVED
,
4063 if (zc
->zc_nvlist_dst_size
!= 0 &&
4064 (nvlist_smush(errors
, zc
->zc_nvlist_dst_size
) != 0 ||
4065 put_nvlist(zc
, errors
) != 0)) {
4067 * Caller made zc->zc_nvlist_dst less than the minimum expected
4068 * size or supplied an invalid address.
4070 props_error
= SET_ERROR(EINVAL
);
4074 error
= dmu_recv_stream(&drc
, fp
->f_vnode
, &off
, zc
->zc_cleanup_fd
,
4075 &zc
->zc_action_handle
);
4078 zfs_sb_t
*zsb
= NULL
;
4080 if (get_zfs_sb(tofs
, &zsb
) == 0) {
4084 error
= zfs_suspend_fs(zsb
);
4086 * If the suspend fails, then the recv_end will
4087 * likely also fail, and clean up after itself.
4089 end_err
= dmu_recv_end(&drc
, zsb
);
4091 error
= zfs_resume_fs(zsb
, tofs
);
4092 error
= error
? error
: end_err
;
4093 deactivate_super(zsb
->z_sb
);
4095 error
= dmu_recv_end(&drc
, NULL
);
4099 zc
->zc_cookie
= off
- fp
->f_offset
;
4100 if (VOP_SEEK(fp
->f_vnode
, fp
->f_offset
, &off
, NULL
) == 0)
4104 if (zfs_ioc_recv_inject_err
) {
4105 zfs_ioc_recv_inject_err
= B_FALSE
;
4111 * On error, restore the original props.
4113 if (error
!= 0 && props
!= NULL
&& !drc
.drc_newfs
) {
4114 if (clear_received_props(tofs
, props
, NULL
) != 0) {
4116 * We failed to clear the received properties.
4117 * Since we may have left a $recvd value on the
4118 * system, we can't clear the $hasrecvd flag.
4120 zc
->zc_obj
|= ZPROP_ERR_NORESTORE
;
4121 } else if (first_recvd_props
) {
4122 dsl_prop_unset_hasrecvd(tofs
);
4125 if (origprops
== NULL
&& !drc
.drc_newfs
) {
4126 /* We failed to stash the original properties. */
4127 zc
->zc_obj
|= ZPROP_ERR_NORESTORE
;
4131 * dsl_props_set() will not convert RECEIVED to LOCAL on or
4132 * after SPA_VERSION_RECVD_PROPS, so we need to specify LOCAL
4133 * explictly if we're restoring local properties cleared in the
4134 * first new-style receive.
4136 if (origprops
!= NULL
&&
4137 zfs_set_prop_nvlist(tofs
, (first_recvd_props
?
4138 ZPROP_SRC_LOCAL
: ZPROP_SRC_RECEIVED
),
4139 origprops
, NULL
) != 0) {
4141 * We stashed the original properties but failed to
4144 zc
->zc_obj
|= ZPROP_ERR_NORESTORE
;
4149 nvlist_free(origprops
);
4150 nvlist_free(errors
);
4154 error
= props_error
;
4161 * zc_name name of snapshot to send
4162 * zc_cookie file descriptor to send stream to
4163 * zc_obj fromorigin flag (mutually exclusive with zc_fromobj)
4164 * zc_sendobj objsetid of snapshot to send
4165 * zc_fromobj objsetid of incremental fromsnap (may be zero)
4166 * zc_guid if set, estimate size of stream only. zc_cookie is ignored.
4167 * output size in zc_objset_type.
4168 * zc_flags lzc_send_flags
4171 * zc_objset_type estimated size, if zc_guid is set
4174 zfs_ioc_send(zfs_cmd_t
*zc
)
4178 boolean_t estimate
= (zc
->zc_guid
!= 0);
4179 boolean_t embedok
= (zc
->zc_flags
& 0x1);
4180 boolean_t large_block_ok
= (zc
->zc_flags
& 0x2);
4182 if (zc
->zc_obj
!= 0) {
4184 dsl_dataset_t
*tosnap
;
4186 error
= dsl_pool_hold(zc
->zc_name
, FTAG
, &dp
);
4190 error
= dsl_dataset_hold_obj(dp
, zc
->zc_sendobj
, FTAG
, &tosnap
);
4192 dsl_pool_rele(dp
, FTAG
);
4196 if (dsl_dir_is_clone(tosnap
->ds_dir
))
4198 dsl_dir_phys(tosnap
->ds_dir
)->dd_origin_obj
;
4199 dsl_dataset_rele(tosnap
, FTAG
);
4200 dsl_pool_rele(dp
, FTAG
);
4205 dsl_dataset_t
*tosnap
;
4206 dsl_dataset_t
*fromsnap
= NULL
;
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 (zc
->zc_fromobj
!= 0) {
4219 error
= dsl_dataset_hold_obj(dp
, zc
->zc_fromobj
,
4222 dsl_dataset_rele(tosnap
, FTAG
);
4223 dsl_pool_rele(dp
, FTAG
);
4228 error
= dmu_send_estimate(tosnap
, fromsnap
,
4229 &zc
->zc_objset_type
);
4231 if (fromsnap
!= NULL
)
4232 dsl_dataset_rele(fromsnap
, FTAG
);
4233 dsl_dataset_rele(tosnap
, FTAG
);
4234 dsl_pool_rele(dp
, FTAG
);
4236 file_t
*fp
= getf(zc
->zc_cookie
);
4238 return (SET_ERROR(EBADF
));
4241 error
= dmu_send_obj(zc
->zc_name
, zc
->zc_sendobj
,
4242 zc
->zc_fromobj
, embedok
, large_block_ok
,
4243 zc
->zc_cookie
, fp
->f_vnode
, &off
);
4245 if (VOP_SEEK(fp
->f_vnode
, fp
->f_offset
, &off
, NULL
) == 0)
4247 releasef(zc
->zc_cookie
);
4254 * zc_name name of snapshot on which to report progress
4255 * zc_cookie file descriptor of send stream
4258 * zc_cookie number of bytes written in send stream thus far
4261 zfs_ioc_send_progress(zfs_cmd_t
*zc
)
4265 dmu_sendarg_t
*dsp
= NULL
;
4268 error
= dsl_pool_hold(zc
->zc_name
, FTAG
, &dp
);
4272 error
= dsl_dataset_hold(dp
, zc
->zc_name
, FTAG
, &ds
);
4274 dsl_pool_rele(dp
, FTAG
);
4278 mutex_enter(&ds
->ds_sendstream_lock
);
4281 * Iterate over all the send streams currently active on this dataset.
4282 * If there's one which matches the specified file descriptor _and_ the
4283 * stream was started by the current process, return the progress of
4287 for (dsp
= list_head(&ds
->ds_sendstreams
); dsp
!= NULL
;
4288 dsp
= list_next(&ds
->ds_sendstreams
, dsp
)) {
4289 if (dsp
->dsa_outfd
== zc
->zc_cookie
&&
4290 dsp
->dsa_proc
->group_leader
== curproc
->group_leader
)
4295 zc
->zc_cookie
= *(dsp
->dsa_off
);
4297 error
= SET_ERROR(ENOENT
);
4299 mutex_exit(&ds
->ds_sendstream_lock
);
4300 dsl_dataset_rele(ds
, FTAG
);
4301 dsl_pool_rele(dp
, FTAG
);
4306 zfs_ioc_inject_fault(zfs_cmd_t
*zc
)
4310 error
= zio_inject_fault(zc
->zc_name
, (int)zc
->zc_guid
, &id
,
4311 &zc
->zc_inject_record
);
4314 zc
->zc_guid
= (uint64_t)id
;
4320 zfs_ioc_clear_fault(zfs_cmd_t
*zc
)
4322 return (zio_clear_fault((int)zc
->zc_guid
));
4326 zfs_ioc_inject_list_next(zfs_cmd_t
*zc
)
4328 int id
= (int)zc
->zc_guid
;
4331 error
= zio_inject_list_next(&id
, zc
->zc_name
, sizeof (zc
->zc_name
),
4332 &zc
->zc_inject_record
);
4340 zfs_ioc_error_log(zfs_cmd_t
*zc
)
4344 size_t count
= (size_t)zc
->zc_nvlist_dst_size
;
4346 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
4349 error
= spa_get_errlog(spa
, (void *)(uintptr_t)zc
->zc_nvlist_dst
,
4352 zc
->zc_nvlist_dst_size
= count
;
4354 zc
->zc_nvlist_dst_size
= spa_get_errlog_size(spa
);
4356 spa_close(spa
, FTAG
);
4362 zfs_ioc_clear(zfs_cmd_t
*zc
)
4369 * On zpool clear we also fix up missing slogs
4371 mutex_enter(&spa_namespace_lock
);
4372 spa
= spa_lookup(zc
->zc_name
);
4374 mutex_exit(&spa_namespace_lock
);
4375 return (SET_ERROR(EIO
));
4377 if (spa_get_log_state(spa
) == SPA_LOG_MISSING
) {
4378 /* we need to let spa_open/spa_load clear the chains */
4379 spa_set_log_state(spa
, SPA_LOG_CLEAR
);
4381 spa
->spa_last_open_failed
= 0;
4382 mutex_exit(&spa_namespace_lock
);
4384 if (zc
->zc_cookie
& ZPOOL_NO_REWIND
) {
4385 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
4388 nvlist_t
*config
= NULL
;
4390 if (zc
->zc_nvlist_src
== 0)
4391 return (SET_ERROR(EINVAL
));
4393 if ((error
= get_nvlist(zc
->zc_nvlist_src
,
4394 zc
->zc_nvlist_src_size
, zc
->zc_iflags
, &policy
)) == 0) {
4395 error
= spa_open_rewind(zc
->zc_name
, &spa
, FTAG
,
4397 if (config
!= NULL
) {
4400 if ((err
= put_nvlist(zc
, config
)) != 0)
4402 nvlist_free(config
);
4404 nvlist_free(policy
);
4411 spa_vdev_state_enter(spa
, SCL_NONE
);
4413 if (zc
->zc_guid
== 0) {
4416 vd
= spa_lookup_by_guid(spa
, zc
->zc_guid
, B_TRUE
);
4418 (void) spa_vdev_state_exit(spa
, NULL
, ENODEV
);
4419 spa_close(spa
, FTAG
);
4420 return (SET_ERROR(ENODEV
));
4424 vdev_clear(spa
, vd
);
4426 (void) spa_vdev_state_exit(spa
, NULL
, 0);
4429 * Resume any suspended I/Os.
4431 if (zio_resume(spa
) != 0)
4432 error
= SET_ERROR(EIO
);
4434 spa_close(spa
, FTAG
);
4440 zfs_ioc_pool_reopen(zfs_cmd_t
*zc
)
4445 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
4449 spa_vdev_state_enter(spa
, SCL_NONE
);
4452 * If a resilver is already in progress then set the
4453 * spa_scrub_reopen flag to B_TRUE so that we don't restart
4454 * the scan as a side effect of the reopen. Otherwise, let
4455 * vdev_open() decided if a resilver is required.
4457 spa
->spa_scrub_reopen
= dsl_scan_resilvering(spa
->spa_dsl_pool
);
4458 vdev_reopen(spa
->spa_root_vdev
);
4459 spa
->spa_scrub_reopen
= B_FALSE
;
4461 (void) spa_vdev_state_exit(spa
, NULL
, 0);
4462 spa_close(spa
, FTAG
);
4467 * zc_name name of filesystem
4468 * zc_value name of origin snapshot
4471 * zc_string name of conflicting snapshot, if there is one
4474 zfs_ioc_promote(zfs_cmd_t
*zc
)
4479 * We don't need to unmount *all* the origin fs's snapshots, but
4482 cp
= strchr(zc
->zc_value
, '@');
4485 (void) dmu_objset_find(zc
->zc_value
,
4486 zfs_unmount_snap_cb
, NULL
, DS_FIND_SNAPSHOTS
);
4487 return (dsl_dataset_promote(zc
->zc_name
, zc
->zc_string
));
4491 * Retrieve a single {user|group}{used|quota}@... property.
4494 * zc_name name of filesystem
4495 * zc_objset_type zfs_userquota_prop_t
4496 * zc_value domain name (eg. "S-1-234-567-89")
4497 * zc_guid RID/UID/GID
4500 * zc_cookie property value
4503 zfs_ioc_userspace_one(zfs_cmd_t
*zc
)
4508 if (zc
->zc_objset_type
>= ZFS_NUM_USERQUOTA_PROPS
)
4509 return (SET_ERROR(EINVAL
));
4511 error
= zfs_sb_hold(zc
->zc_name
, FTAG
, &zsb
, B_FALSE
);
4515 error
= zfs_userspace_one(zsb
,
4516 zc
->zc_objset_type
, zc
->zc_value
, zc
->zc_guid
, &zc
->zc_cookie
);
4517 zfs_sb_rele(zsb
, FTAG
);
4524 * zc_name name of filesystem
4525 * zc_cookie zap cursor
4526 * zc_objset_type zfs_userquota_prop_t
4527 * zc_nvlist_dst[_size] buffer to fill (not really an nvlist)
4530 * zc_nvlist_dst[_size] data buffer (array of zfs_useracct_t)
4531 * zc_cookie zap cursor
4534 zfs_ioc_userspace_many(zfs_cmd_t
*zc
)
4537 int bufsize
= zc
->zc_nvlist_dst_size
;
4542 return (SET_ERROR(ENOMEM
));
4544 error
= zfs_sb_hold(zc
->zc_name
, FTAG
, &zsb
, B_FALSE
);
4548 buf
= vmem_alloc(bufsize
, KM_SLEEP
);
4550 error
= zfs_userspace_many(zsb
, zc
->zc_objset_type
, &zc
->zc_cookie
,
4551 buf
, &zc
->zc_nvlist_dst_size
);
4554 error
= xcopyout(buf
,
4555 (void *)(uintptr_t)zc
->zc_nvlist_dst
,
4556 zc
->zc_nvlist_dst_size
);
4558 vmem_free(buf
, bufsize
);
4559 zfs_sb_rele(zsb
, FTAG
);
4566 * zc_name name of filesystem
4572 zfs_ioc_userspace_upgrade(zfs_cmd_t
*zc
)
4578 if (get_zfs_sb(zc
->zc_name
, &zsb
) == 0) {
4579 if (!dmu_objset_userused_enabled(zsb
->z_os
)) {
4581 * If userused is not enabled, it may be because the
4582 * objset needs to be closed & reopened (to grow the
4583 * objset_phys_t). Suspend/resume the fs will do that.
4585 error
= zfs_suspend_fs(zsb
);
4587 dmu_objset_refresh_ownership(zsb
->z_os
,
4589 error
= zfs_resume_fs(zsb
, zc
->zc_name
);
4593 error
= dmu_objset_userspace_upgrade(zsb
->z_os
);
4594 deactivate_super(zsb
->z_sb
);
4596 /* XXX kind of reading contents without owning */
4597 error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
);
4601 error
= dmu_objset_userspace_upgrade(os
);
4602 dmu_objset_rele(os
, FTAG
);
4609 zfs_ioc_share(zfs_cmd_t
*zc
)
4611 return (SET_ERROR(ENOSYS
));
4614 ace_t full_access
[] = {
4615 {(uid_t
)-1, ACE_ALL_PERMS
, ACE_EVERYONE
, 0}
4620 * zc_name name of containing filesystem
4621 * zc_obj object # beyond which we want next in-use object #
4624 * zc_obj next in-use object #
4627 zfs_ioc_next_obj(zfs_cmd_t
*zc
)
4629 objset_t
*os
= NULL
;
4632 error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
);
4636 error
= dmu_object_next(os
, &zc
->zc_obj
, B_FALSE
, 0);
4638 dmu_objset_rele(os
, FTAG
);
4644 * zc_name name of filesystem
4645 * zc_value prefix name for snapshot
4646 * zc_cleanup_fd cleanup-on-exit file descriptor for calling process
4649 * zc_value short name of new snapshot
4652 zfs_ioc_tmp_snapshot(zfs_cmd_t
*zc
)
4659 error
= zfs_onexit_fd_hold(zc
->zc_cleanup_fd
, &minor
);
4663 snap_name
= kmem_asprintf("%s-%016llx", zc
->zc_value
,
4664 (u_longlong_t
)ddi_get_lbolt64());
4665 hold_name
= kmem_asprintf("%%%s", zc
->zc_value
);
4667 error
= dsl_dataset_snapshot_tmp(zc
->zc_name
, snap_name
, minor
,
4670 (void) strcpy(zc
->zc_value
, snap_name
);
4673 zfs_onexit_fd_rele(zc
->zc_cleanup_fd
);
4679 * zc_name name of "to" snapshot
4680 * zc_value name of "from" snapshot
4681 * zc_cookie file descriptor to write diff data on
4684 * dmu_diff_record_t's to the file descriptor
4687 zfs_ioc_diff(zfs_cmd_t
*zc
)
4693 fp
= getf(zc
->zc_cookie
);
4695 return (SET_ERROR(EBADF
));
4699 error
= dmu_diff(zc
->zc_name
, zc
->zc_value
, fp
->f_vnode
, &off
);
4701 if (VOP_SEEK(fp
->f_vnode
, fp
->f_offset
, &off
, NULL
) == 0)
4703 releasef(zc
->zc_cookie
);
4709 * Remove all ACL files in shares dir
4711 #ifdef HAVE_SMB_SHARE
4713 zfs_smb_acl_purge(znode_t
*dzp
)
4716 zap_attribute_t zap
;
4717 zfs_sb_t
*zsb
= ZTOZSB(dzp
);
4720 for (zap_cursor_init(&zc
, zsb
->z_os
, dzp
->z_id
);
4721 (error
= zap_cursor_retrieve(&zc
, &zap
)) == 0;
4722 zap_cursor_advance(&zc
)) {
4723 if ((error
= VOP_REMOVE(ZTOV(dzp
), zap
.za_name
, kcred
,
4727 zap_cursor_fini(&zc
);
4730 #endif /* HAVE_SMB_SHARE */
4733 zfs_ioc_smb_acl(zfs_cmd_t
*zc
)
4735 #ifdef HAVE_SMB_SHARE
4738 vnode_t
*resourcevp
= NULL
;
4747 if ((error
= lookupname(zc
->zc_value
, UIO_SYSSPACE
,
4748 NO_FOLLOW
, NULL
, &vp
)) != 0)
4751 /* Now make sure mntpnt and dataset are ZFS */
4753 if (vp
->v_vfsp
->vfs_fstype
!= zfsfstype
||
4754 (strcmp((char *)refstr_value(vp
->v_vfsp
->vfs_resource
),
4755 zc
->zc_name
) != 0)) {
4757 return (SET_ERROR(EINVAL
));
4765 * Create share dir if its missing.
4767 mutex_enter(&zsb
->z_lock
);
4768 if (zsb
->z_shares_dir
== 0) {
4771 tx
= dmu_tx_create(zsb
->z_os
);
4772 dmu_tx_hold_zap(tx
, MASTER_NODE_OBJ
, TRUE
,
4774 dmu_tx_hold_zap(tx
, DMU_NEW_OBJECT
, FALSE
, NULL
);
4775 error
= dmu_tx_assign(tx
, TXG_WAIT
);
4779 error
= zfs_create_share_dir(zsb
, tx
);
4783 mutex_exit(&zsb
->z_lock
);
4789 mutex_exit(&zsb
->z_lock
);
4791 ASSERT(zsb
->z_shares_dir
);
4792 if ((error
= zfs_zget(zsb
, zsb
->z_shares_dir
, &sharedir
)) != 0) {
4798 switch (zc
->zc_cookie
) {
4799 case ZFS_SMB_ACL_ADD
:
4800 vattr
.va_mask
= AT_MODE
|AT_UID
|AT_GID
|AT_TYPE
;
4801 vattr
.va_mode
= S_IFREG
|0777;
4805 vsec
.vsa_mask
= VSA_ACE
;
4806 vsec
.vsa_aclentp
= &full_access
;
4807 vsec
.vsa_aclentsz
= sizeof (full_access
);
4808 vsec
.vsa_aclcnt
= 1;
4810 error
= VOP_CREATE(ZTOV(sharedir
), zc
->zc_string
,
4811 &vattr
, EXCL
, 0, &resourcevp
, kcred
, 0, NULL
, &vsec
);
4813 VN_RELE(resourcevp
);
4816 case ZFS_SMB_ACL_REMOVE
:
4817 error
= VOP_REMOVE(ZTOV(sharedir
), zc
->zc_string
, kcred
,
4821 case ZFS_SMB_ACL_RENAME
:
4822 if ((error
= get_nvlist(zc
->zc_nvlist_src
,
4823 zc
->zc_nvlist_src_size
, zc
->zc_iflags
, &nvlist
)) != 0) {
4825 VN_RELE(ZTOV(sharedir
));
4829 if (nvlist_lookup_string(nvlist
, ZFS_SMB_ACL_SRC
, &src
) ||
4830 nvlist_lookup_string(nvlist
, ZFS_SMB_ACL_TARGET
,
4833 VN_RELE(ZTOV(sharedir
));
4835 nvlist_free(nvlist
);
4838 error
= VOP_RENAME(ZTOV(sharedir
), src
, ZTOV(sharedir
), target
,
4840 nvlist_free(nvlist
);
4843 case ZFS_SMB_ACL_PURGE
:
4844 error
= zfs_smb_acl_purge(sharedir
);
4848 error
= SET_ERROR(EINVAL
);
4853 VN_RELE(ZTOV(sharedir
));
4859 return (SET_ERROR(ENOTSUP
));
4860 #endif /* HAVE_SMB_SHARE */
4865 * "holds" -> { snapname -> holdname (string), ... }
4866 * (optional) "cleanup_fd" -> fd (int32)
4870 * snapname -> error value (int32)
4876 zfs_ioc_hold(const char *pool
, nvlist_t
*args
, nvlist_t
*errlist
)
4880 int cleanup_fd
= -1;
4884 error
= nvlist_lookup_nvlist(args
, "holds", &holds
);
4886 return (SET_ERROR(EINVAL
));
4888 /* make sure the user didn't pass us any invalid (empty) tags */
4889 for (pair
= nvlist_next_nvpair(holds
, NULL
); pair
!= NULL
;
4890 pair
= nvlist_next_nvpair(holds
, pair
)) {
4893 error
= nvpair_value_string(pair
, &htag
);
4895 return (SET_ERROR(error
));
4897 if (strlen(htag
) == 0)
4898 return (SET_ERROR(EINVAL
));
4901 if (nvlist_lookup_int32(args
, "cleanup_fd", &cleanup_fd
) == 0) {
4902 error
= zfs_onexit_fd_hold(cleanup_fd
, &minor
);
4907 error
= dsl_dataset_user_hold(holds
, minor
, errlist
);
4909 zfs_onexit_fd_rele(cleanup_fd
);
4914 * innvl is not used.
4917 * holdname -> time added (uint64 seconds since epoch)
4923 zfs_ioc_get_holds(const char *snapname
, nvlist_t
*args
, nvlist_t
*outnvl
)
4925 return (dsl_dataset_get_holds(snapname
, outnvl
));
4930 * snapname -> { holdname, ... }
4935 * snapname -> error value (int32)
4941 zfs_ioc_release(const char *pool
, nvlist_t
*holds
, nvlist_t
*errlist
)
4943 return (dsl_dataset_user_release(holds
, errlist
));
4948 * zc_guid flags (ZEVENT_NONBLOCK)
4949 * zc_cleanup_fd zevent file descriptor
4952 * zc_nvlist_dst next nvlist event
4953 * zc_cookie dropped events since last get
4956 zfs_ioc_events_next(zfs_cmd_t
*zc
)
4959 nvlist_t
*event
= NULL
;
4961 uint64_t dropped
= 0;
4964 error
= zfs_zevent_fd_hold(zc
->zc_cleanup_fd
, &minor
, &ze
);
4969 error
= zfs_zevent_next(ze
, &event
,
4970 &zc
->zc_nvlist_dst_size
, &dropped
);
4971 if (event
!= NULL
) {
4972 zc
->zc_cookie
= dropped
;
4973 error
= put_nvlist(zc
, event
);
4977 if (zc
->zc_guid
& ZEVENT_NONBLOCK
)
4980 if ((error
== 0) || (error
!= ENOENT
))
4983 error
= zfs_zevent_wait(ze
);
4988 zfs_zevent_fd_rele(zc
->zc_cleanup_fd
);
4995 * zc_cookie cleared events count
4998 zfs_ioc_events_clear(zfs_cmd_t
*zc
)
5002 zfs_zevent_drain_all(&count
);
5003 zc
->zc_cookie
= count
;
5010 * zc_guid eid | ZEVENT_SEEK_START | ZEVENT_SEEK_END
5011 * zc_cleanup zevent file descriptor
5014 zfs_ioc_events_seek(zfs_cmd_t
*zc
)
5020 error
= zfs_zevent_fd_hold(zc
->zc_cleanup_fd
, &minor
, &ze
);
5024 error
= zfs_zevent_seek(ze
, zc
->zc_guid
);
5025 zfs_zevent_fd_rele(zc
->zc_cleanup_fd
);
5032 * zc_name name of new filesystem or snapshot
5033 * zc_value full name of old snapshot
5036 * zc_cookie space in bytes
5037 * zc_objset_type compressed space in bytes
5038 * zc_perm_action uncompressed space in bytes
5041 zfs_ioc_space_written(zfs_cmd_t
*zc
)
5045 dsl_dataset_t
*new, *old
;
5047 error
= dsl_pool_hold(zc
->zc_name
, FTAG
, &dp
);
5050 error
= dsl_dataset_hold(dp
, zc
->zc_name
, FTAG
, &new);
5052 dsl_pool_rele(dp
, FTAG
);
5055 error
= dsl_dataset_hold(dp
, zc
->zc_value
, FTAG
, &old
);
5057 dsl_dataset_rele(new, FTAG
);
5058 dsl_pool_rele(dp
, FTAG
);
5062 error
= dsl_dataset_space_written(old
, new, &zc
->zc_cookie
,
5063 &zc
->zc_objset_type
, &zc
->zc_perm_action
);
5064 dsl_dataset_rele(old
, FTAG
);
5065 dsl_dataset_rele(new, FTAG
);
5066 dsl_pool_rele(dp
, FTAG
);
5072 * "firstsnap" -> snapshot name
5076 * "used" -> space in bytes
5077 * "compressed" -> compressed space in bytes
5078 * "uncompressed" -> uncompressed space in bytes
5082 zfs_ioc_space_snaps(const char *lastsnap
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
5086 dsl_dataset_t
*new, *old
;
5088 uint64_t used
, comp
, uncomp
;
5090 if (nvlist_lookup_string(innvl
, "firstsnap", &firstsnap
) != 0)
5091 return (SET_ERROR(EINVAL
));
5093 error
= dsl_pool_hold(lastsnap
, FTAG
, &dp
);
5097 error
= dsl_dataset_hold(dp
, lastsnap
, FTAG
, &new);
5098 if (error
== 0 && !new->ds_is_snapshot
) {
5099 dsl_dataset_rele(new, FTAG
);
5100 error
= SET_ERROR(EINVAL
);
5103 dsl_pool_rele(dp
, FTAG
);
5106 error
= dsl_dataset_hold(dp
, firstsnap
, FTAG
, &old
);
5107 if (error
== 0 && !old
->ds_is_snapshot
) {
5108 dsl_dataset_rele(old
, FTAG
);
5109 error
= SET_ERROR(EINVAL
);
5112 dsl_dataset_rele(new, FTAG
);
5113 dsl_pool_rele(dp
, FTAG
);
5117 error
= dsl_dataset_space_wouldfree(old
, new, &used
, &comp
, &uncomp
);
5118 dsl_dataset_rele(old
, FTAG
);
5119 dsl_dataset_rele(new, FTAG
);
5120 dsl_pool_rele(dp
, FTAG
);
5121 fnvlist_add_uint64(outnvl
, "used", used
);
5122 fnvlist_add_uint64(outnvl
, "compressed", comp
);
5123 fnvlist_add_uint64(outnvl
, "uncompressed", uncomp
);
5129 * "fd" -> file descriptor to write stream to (int32)
5130 * (optional) "fromsnap" -> full snap name to send an incremental from
5131 * (optional) "largeblockok" -> (value ignored)
5132 * indicates that blocks > 128KB are permitted
5133 * (optional) "embedok" -> (value ignored)
5134 * presence indicates DRR_WRITE_EMBEDDED records are permitted
5141 zfs_ioc_send_new(const char *snapname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
5145 char *fromname
= NULL
;
5148 boolean_t largeblockok
;
5151 error
= nvlist_lookup_int32(innvl
, "fd", &fd
);
5153 return (SET_ERROR(EINVAL
));
5155 (void) nvlist_lookup_string(innvl
, "fromsnap", &fromname
);
5157 largeblockok
= nvlist_exists(innvl
, "largeblockok");
5158 embedok
= nvlist_exists(innvl
, "embedok");
5160 if ((fp
= getf(fd
)) == NULL
)
5161 return (SET_ERROR(EBADF
));
5164 error
= dmu_send(snapname
, fromname
, embedok
, largeblockok
,
5165 fd
, fp
->f_vnode
, &off
);
5167 if (VOP_SEEK(fp
->f_vnode
, fp
->f_offset
, &off
, NULL
) == 0)
5175 * Determine approximately how large a zfs send stream will be -- the number
5176 * of bytes that will be written to the fd supplied to zfs_ioc_send_new().
5179 * (optional) "from" -> full snap or bookmark name to send an incremental
5184 * "space" -> bytes of space (uint64)
5188 zfs_ioc_send_space(const char *snapname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
5191 dsl_dataset_t
*tosnap
;
5196 error
= dsl_pool_hold(snapname
, FTAG
, &dp
);
5200 error
= dsl_dataset_hold(dp
, snapname
, FTAG
, &tosnap
);
5202 dsl_pool_rele(dp
, FTAG
);
5206 error
= nvlist_lookup_string(innvl
, "from", &fromname
);
5208 if (strchr(fromname
, '@') != NULL
) {
5210 * If from is a snapshot, hold it and use the more
5211 * efficient dmu_send_estimate to estimate send space
5212 * size using deadlists.
5214 dsl_dataset_t
*fromsnap
;
5215 error
= dsl_dataset_hold(dp
, fromname
, FTAG
, &fromsnap
);
5218 error
= dmu_send_estimate(tosnap
, fromsnap
, &space
);
5219 dsl_dataset_rele(fromsnap
, FTAG
);
5220 } else if (strchr(fromname
, '#') != NULL
) {
5222 * If from is a bookmark, fetch the creation TXG of the
5223 * snapshot it was created from and use that to find
5224 * blocks that were born after it.
5226 zfs_bookmark_phys_t frombm
;
5228 error
= dsl_bookmark_lookup(dp
, fromname
, tosnap
,
5232 error
= dmu_send_estimate_from_txg(tosnap
,
5233 frombm
.zbm_creation_txg
, &space
);
5236 * from is not properly formatted as a snapshot or
5239 error
= SET_ERROR(EINVAL
);
5243 // If estimating the size of a full send, use dmu_send_estimate
5244 error
= dmu_send_estimate(tosnap
, NULL
, &space
);
5247 fnvlist_add_uint64(outnvl
, "space", space
);
5250 dsl_dataset_rele(tosnap
, FTAG
);
5251 dsl_pool_rele(dp
, FTAG
);
5255 static zfs_ioc_vec_t zfs_ioc_vec
[ZFS_IOC_LAST
- ZFS_IOC_FIRST
];
5258 zfs_ioctl_register_legacy(zfs_ioc_t ioc
, zfs_ioc_legacy_func_t
*func
,
5259 zfs_secpolicy_func_t
*secpolicy
, zfs_ioc_namecheck_t namecheck
,
5260 boolean_t log_history
, zfs_ioc_poolcheck_t pool_check
)
5262 zfs_ioc_vec_t
*vec
= &zfs_ioc_vec
[ioc
- ZFS_IOC_FIRST
];
5264 ASSERT3U(ioc
, >=, ZFS_IOC_FIRST
);
5265 ASSERT3U(ioc
, <, ZFS_IOC_LAST
);
5266 ASSERT3P(vec
->zvec_legacy_func
, ==, NULL
);
5267 ASSERT3P(vec
->zvec_func
, ==, NULL
);
5269 vec
->zvec_legacy_func
= func
;
5270 vec
->zvec_secpolicy
= secpolicy
;
5271 vec
->zvec_namecheck
= namecheck
;
5272 vec
->zvec_allow_log
= log_history
;
5273 vec
->zvec_pool_check
= pool_check
;
5277 * See the block comment at the beginning of this file for details on
5278 * each argument to this function.
5281 zfs_ioctl_register(const char *name
, zfs_ioc_t ioc
, zfs_ioc_func_t
*func
,
5282 zfs_secpolicy_func_t
*secpolicy
, zfs_ioc_namecheck_t namecheck
,
5283 zfs_ioc_poolcheck_t pool_check
, boolean_t smush_outnvlist
,
5284 boolean_t allow_log
)
5286 zfs_ioc_vec_t
*vec
= &zfs_ioc_vec
[ioc
- ZFS_IOC_FIRST
];
5288 ASSERT3U(ioc
, >=, ZFS_IOC_FIRST
);
5289 ASSERT3U(ioc
, <, ZFS_IOC_LAST
);
5290 ASSERT3P(vec
->zvec_legacy_func
, ==, NULL
);
5291 ASSERT3P(vec
->zvec_func
, ==, NULL
);
5293 /* if we are logging, the name must be valid */
5294 ASSERT(!allow_log
|| namecheck
!= NO_NAME
);
5296 vec
->zvec_name
= name
;
5297 vec
->zvec_func
= func
;
5298 vec
->zvec_secpolicy
= secpolicy
;
5299 vec
->zvec_namecheck
= namecheck
;
5300 vec
->zvec_pool_check
= pool_check
;
5301 vec
->zvec_smush_outnvlist
= smush_outnvlist
;
5302 vec
->zvec_allow_log
= allow_log
;
5306 zfs_ioctl_register_pool(zfs_ioc_t ioc
, zfs_ioc_legacy_func_t
*func
,
5307 zfs_secpolicy_func_t
*secpolicy
, boolean_t log_history
,
5308 zfs_ioc_poolcheck_t pool_check
)
5310 zfs_ioctl_register_legacy(ioc
, func
, secpolicy
,
5311 POOL_NAME
, log_history
, pool_check
);
5315 zfs_ioctl_register_dataset_nolog(zfs_ioc_t ioc
, zfs_ioc_legacy_func_t
*func
,
5316 zfs_secpolicy_func_t
*secpolicy
, zfs_ioc_poolcheck_t pool_check
)
5318 zfs_ioctl_register_legacy(ioc
, func
, secpolicy
,
5319 DATASET_NAME
, B_FALSE
, pool_check
);
5323 zfs_ioctl_register_pool_modify(zfs_ioc_t ioc
, zfs_ioc_legacy_func_t
*func
)
5325 zfs_ioctl_register_legacy(ioc
, func
, zfs_secpolicy_config
,
5326 POOL_NAME
, B_TRUE
, POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
);
5330 zfs_ioctl_register_pool_meta(zfs_ioc_t ioc
, zfs_ioc_legacy_func_t
*func
,
5331 zfs_secpolicy_func_t
*secpolicy
)
5333 zfs_ioctl_register_legacy(ioc
, func
, secpolicy
,
5334 NO_NAME
, B_FALSE
, POOL_CHECK_NONE
);
5338 zfs_ioctl_register_dataset_read_secpolicy(zfs_ioc_t ioc
,
5339 zfs_ioc_legacy_func_t
*func
, zfs_secpolicy_func_t
*secpolicy
)
5341 zfs_ioctl_register_legacy(ioc
, func
, secpolicy
,
5342 DATASET_NAME
, B_FALSE
, POOL_CHECK_SUSPENDED
);
5346 zfs_ioctl_register_dataset_read(zfs_ioc_t ioc
, zfs_ioc_legacy_func_t
*func
)
5348 zfs_ioctl_register_dataset_read_secpolicy(ioc
, func
,
5349 zfs_secpolicy_read
);
5353 zfs_ioctl_register_dataset_modify(zfs_ioc_t ioc
, zfs_ioc_legacy_func_t
*func
,
5354 zfs_secpolicy_func_t
*secpolicy
)
5356 zfs_ioctl_register_legacy(ioc
, func
, secpolicy
,
5357 DATASET_NAME
, B_TRUE
, POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
);
5361 zfs_ioctl_init(void)
5363 zfs_ioctl_register("snapshot", ZFS_IOC_SNAPSHOT
,
5364 zfs_ioc_snapshot
, zfs_secpolicy_snapshot
, POOL_NAME
,
5365 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5367 zfs_ioctl_register("log_history", ZFS_IOC_LOG_HISTORY
,
5368 zfs_ioc_log_history
, zfs_secpolicy_log_history
, NO_NAME
,
5369 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_FALSE
, B_FALSE
);
5371 zfs_ioctl_register("space_snaps", ZFS_IOC_SPACE_SNAPS
,
5372 zfs_ioc_space_snaps
, zfs_secpolicy_read
, DATASET_NAME
,
5373 POOL_CHECK_SUSPENDED
, B_FALSE
, B_FALSE
);
5375 zfs_ioctl_register("send", ZFS_IOC_SEND_NEW
,
5376 zfs_ioc_send_new
, zfs_secpolicy_send_new
, DATASET_NAME
,
5377 POOL_CHECK_SUSPENDED
, B_FALSE
, B_FALSE
);
5379 zfs_ioctl_register("send_space", ZFS_IOC_SEND_SPACE
,
5380 zfs_ioc_send_space
, zfs_secpolicy_read
, DATASET_NAME
,
5381 POOL_CHECK_SUSPENDED
, B_FALSE
, B_FALSE
);
5383 zfs_ioctl_register("create", ZFS_IOC_CREATE
,
5384 zfs_ioc_create
, zfs_secpolicy_create_clone
, DATASET_NAME
,
5385 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5387 zfs_ioctl_register("clone", ZFS_IOC_CLONE
,
5388 zfs_ioc_clone
, zfs_secpolicy_create_clone
, DATASET_NAME
,
5389 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5391 zfs_ioctl_register("destroy_snaps", ZFS_IOC_DESTROY_SNAPS
,
5392 zfs_ioc_destroy_snaps
, zfs_secpolicy_destroy_snaps
, POOL_NAME
,
5393 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5395 zfs_ioctl_register("hold", ZFS_IOC_HOLD
,
5396 zfs_ioc_hold
, zfs_secpolicy_hold
, POOL_NAME
,
5397 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5398 zfs_ioctl_register("release", ZFS_IOC_RELEASE
,
5399 zfs_ioc_release
, zfs_secpolicy_release
, POOL_NAME
,
5400 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5402 zfs_ioctl_register("get_holds", ZFS_IOC_GET_HOLDS
,
5403 zfs_ioc_get_holds
, zfs_secpolicy_read
, DATASET_NAME
,
5404 POOL_CHECK_SUSPENDED
, B_FALSE
, B_FALSE
);
5406 zfs_ioctl_register("rollback", ZFS_IOC_ROLLBACK
,
5407 zfs_ioc_rollback
, zfs_secpolicy_rollback
, DATASET_NAME
,
5408 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_FALSE
, B_TRUE
);
5410 zfs_ioctl_register("bookmark", ZFS_IOC_BOOKMARK
,
5411 zfs_ioc_bookmark
, zfs_secpolicy_bookmark
, POOL_NAME
,
5412 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5414 zfs_ioctl_register("get_bookmarks", ZFS_IOC_GET_BOOKMARKS
,
5415 zfs_ioc_get_bookmarks
, zfs_secpolicy_read
, DATASET_NAME
,
5416 POOL_CHECK_SUSPENDED
, B_FALSE
, B_FALSE
);
5418 zfs_ioctl_register("destroy_bookmarks", ZFS_IOC_DESTROY_BOOKMARKS
,
5419 zfs_ioc_destroy_bookmarks
, zfs_secpolicy_destroy_bookmarks
,
5421 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5423 /* IOCTLS that use the legacy function signature */
5425 zfs_ioctl_register_legacy(ZFS_IOC_POOL_FREEZE
, zfs_ioc_pool_freeze
,
5426 zfs_secpolicy_config
, NO_NAME
, B_FALSE
, POOL_CHECK_READONLY
);
5428 zfs_ioctl_register_pool(ZFS_IOC_POOL_CREATE
, zfs_ioc_pool_create
,
5429 zfs_secpolicy_config
, B_TRUE
, POOL_CHECK_NONE
);
5430 zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_SCAN
,
5432 zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_UPGRADE
,
5433 zfs_ioc_pool_upgrade
);
5434 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_ADD
,
5436 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_REMOVE
,
5437 zfs_ioc_vdev_remove
);
5438 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SET_STATE
,
5439 zfs_ioc_vdev_set_state
);
5440 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_ATTACH
,
5441 zfs_ioc_vdev_attach
);
5442 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_DETACH
,
5443 zfs_ioc_vdev_detach
);
5444 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SETPATH
,
5445 zfs_ioc_vdev_setpath
);
5446 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SETFRU
,
5447 zfs_ioc_vdev_setfru
);
5448 zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_SET_PROPS
,
5449 zfs_ioc_pool_set_props
);
5450 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SPLIT
,
5451 zfs_ioc_vdev_split
);
5452 zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_REGUID
,
5453 zfs_ioc_pool_reguid
);
5455 zfs_ioctl_register_pool_meta(ZFS_IOC_POOL_CONFIGS
,
5456 zfs_ioc_pool_configs
, zfs_secpolicy_none
);
5457 zfs_ioctl_register_pool_meta(ZFS_IOC_POOL_TRYIMPORT
,
5458 zfs_ioc_pool_tryimport
, zfs_secpolicy_config
);
5459 zfs_ioctl_register_pool_meta(ZFS_IOC_INJECT_FAULT
,
5460 zfs_ioc_inject_fault
, zfs_secpolicy_inject
);
5461 zfs_ioctl_register_pool_meta(ZFS_IOC_CLEAR_FAULT
,
5462 zfs_ioc_clear_fault
, zfs_secpolicy_inject
);
5463 zfs_ioctl_register_pool_meta(ZFS_IOC_INJECT_LIST_NEXT
,
5464 zfs_ioc_inject_list_next
, zfs_secpolicy_inject
);
5467 * pool destroy, and export don't log the history as part of
5468 * zfsdev_ioctl, but rather zfs_ioc_pool_export
5469 * does the logging of those commands.
5471 zfs_ioctl_register_pool(ZFS_IOC_POOL_DESTROY
, zfs_ioc_pool_destroy
,
5472 zfs_secpolicy_config
, B_FALSE
, POOL_CHECK_SUSPENDED
);
5473 zfs_ioctl_register_pool(ZFS_IOC_POOL_EXPORT
, zfs_ioc_pool_export
,
5474 zfs_secpolicy_config
, B_FALSE
, POOL_CHECK_SUSPENDED
);
5476 zfs_ioctl_register_pool(ZFS_IOC_POOL_STATS
, zfs_ioc_pool_stats
,
5477 zfs_secpolicy_read
, B_FALSE
, POOL_CHECK_NONE
);
5478 zfs_ioctl_register_pool(ZFS_IOC_POOL_GET_PROPS
, zfs_ioc_pool_get_props
,
5479 zfs_secpolicy_read
, B_FALSE
, POOL_CHECK_NONE
);
5481 zfs_ioctl_register_pool(ZFS_IOC_ERROR_LOG
, zfs_ioc_error_log
,
5482 zfs_secpolicy_inject
, B_FALSE
, POOL_CHECK_SUSPENDED
);
5483 zfs_ioctl_register_pool(ZFS_IOC_DSOBJ_TO_DSNAME
,
5484 zfs_ioc_dsobj_to_dsname
,
5485 zfs_secpolicy_diff
, B_FALSE
, POOL_CHECK_SUSPENDED
);
5486 zfs_ioctl_register_pool(ZFS_IOC_POOL_GET_HISTORY
,
5487 zfs_ioc_pool_get_history
,
5488 zfs_secpolicy_config
, B_FALSE
, POOL_CHECK_SUSPENDED
);
5490 zfs_ioctl_register_pool(ZFS_IOC_POOL_IMPORT
, zfs_ioc_pool_import
,
5491 zfs_secpolicy_config
, B_TRUE
, POOL_CHECK_NONE
);
5493 zfs_ioctl_register_pool(ZFS_IOC_CLEAR
, zfs_ioc_clear
,
5494 zfs_secpolicy_config
, B_TRUE
, POOL_CHECK_NONE
);
5495 zfs_ioctl_register_pool(ZFS_IOC_POOL_REOPEN
, zfs_ioc_pool_reopen
,
5496 zfs_secpolicy_config
, B_TRUE
, POOL_CHECK_SUSPENDED
);
5498 zfs_ioctl_register_dataset_read(ZFS_IOC_SPACE_WRITTEN
,
5499 zfs_ioc_space_written
);
5500 zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_RECVD_PROPS
,
5501 zfs_ioc_objset_recvd_props
);
5502 zfs_ioctl_register_dataset_read(ZFS_IOC_NEXT_OBJ
,
5504 zfs_ioctl_register_dataset_read(ZFS_IOC_GET_FSACL
,
5506 zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_STATS
,
5507 zfs_ioc_objset_stats
);
5508 zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_ZPLPROPS
,
5509 zfs_ioc_objset_zplprops
);
5510 zfs_ioctl_register_dataset_read(ZFS_IOC_DATASET_LIST_NEXT
,
5511 zfs_ioc_dataset_list_next
);
5512 zfs_ioctl_register_dataset_read(ZFS_IOC_SNAPSHOT_LIST_NEXT
,
5513 zfs_ioc_snapshot_list_next
);
5514 zfs_ioctl_register_dataset_read(ZFS_IOC_SEND_PROGRESS
,
5515 zfs_ioc_send_progress
);
5517 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_DIFF
,
5518 zfs_ioc_diff
, zfs_secpolicy_diff
);
5519 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_OBJ_TO_STATS
,
5520 zfs_ioc_obj_to_stats
, zfs_secpolicy_diff
);
5521 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_OBJ_TO_PATH
,
5522 zfs_ioc_obj_to_path
, zfs_secpolicy_diff
);
5523 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_USERSPACE_ONE
,
5524 zfs_ioc_userspace_one
, zfs_secpolicy_userspace_one
);
5525 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_USERSPACE_MANY
,
5526 zfs_ioc_userspace_many
, zfs_secpolicy_userspace_many
);
5527 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_SEND
,
5528 zfs_ioc_send
, zfs_secpolicy_send
);
5530 zfs_ioctl_register_dataset_modify(ZFS_IOC_SET_PROP
, zfs_ioc_set_prop
,
5531 zfs_secpolicy_none
);
5532 zfs_ioctl_register_dataset_modify(ZFS_IOC_DESTROY
, zfs_ioc_destroy
,
5533 zfs_secpolicy_destroy
);
5534 zfs_ioctl_register_dataset_modify(ZFS_IOC_RENAME
, zfs_ioc_rename
,
5535 zfs_secpolicy_rename
);
5536 zfs_ioctl_register_dataset_modify(ZFS_IOC_RECV
, zfs_ioc_recv
,
5537 zfs_secpolicy_recv
);
5538 zfs_ioctl_register_dataset_modify(ZFS_IOC_PROMOTE
, zfs_ioc_promote
,
5539 zfs_secpolicy_promote
);
5540 zfs_ioctl_register_dataset_modify(ZFS_IOC_INHERIT_PROP
,
5541 zfs_ioc_inherit_prop
, zfs_secpolicy_inherit_prop
);
5542 zfs_ioctl_register_dataset_modify(ZFS_IOC_SET_FSACL
, zfs_ioc_set_fsacl
,
5543 zfs_secpolicy_set_fsacl
);
5545 zfs_ioctl_register_dataset_nolog(ZFS_IOC_SHARE
, zfs_ioc_share
,
5546 zfs_secpolicy_share
, POOL_CHECK_NONE
);
5547 zfs_ioctl_register_dataset_nolog(ZFS_IOC_SMB_ACL
, zfs_ioc_smb_acl
,
5548 zfs_secpolicy_smb_acl
, POOL_CHECK_NONE
);
5549 zfs_ioctl_register_dataset_nolog(ZFS_IOC_USERSPACE_UPGRADE
,
5550 zfs_ioc_userspace_upgrade
, zfs_secpolicy_userspace_upgrade
,
5551 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
);
5552 zfs_ioctl_register_dataset_nolog(ZFS_IOC_TMP_SNAPSHOT
,
5553 zfs_ioc_tmp_snapshot
, zfs_secpolicy_tmp_snapshot
,
5554 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
);
5559 zfs_ioctl_register_legacy(ZFS_IOC_EVENTS_NEXT
, zfs_ioc_events_next
,
5560 zfs_secpolicy_config
, NO_NAME
, B_FALSE
, POOL_CHECK_NONE
);
5561 zfs_ioctl_register_legacy(ZFS_IOC_EVENTS_CLEAR
, zfs_ioc_events_clear
,
5562 zfs_secpolicy_config
, NO_NAME
, B_FALSE
, POOL_CHECK_NONE
);
5563 zfs_ioctl_register_legacy(ZFS_IOC_EVENTS_SEEK
, zfs_ioc_events_seek
,
5564 zfs_secpolicy_config
, NO_NAME
, B_FALSE
, POOL_CHECK_NONE
);
5568 pool_status_check(const char *name
, zfs_ioc_namecheck_t type
,
5569 zfs_ioc_poolcheck_t check
)
5574 ASSERT(type
== POOL_NAME
|| type
== DATASET_NAME
);
5576 if (check
& POOL_CHECK_NONE
)
5579 error
= spa_open(name
, &spa
, FTAG
);
5581 if ((check
& POOL_CHECK_SUSPENDED
) && spa_suspended(spa
))
5582 error
= SET_ERROR(EAGAIN
);
5583 else if ((check
& POOL_CHECK_READONLY
) && !spa_writeable(spa
))
5584 error
= SET_ERROR(EROFS
);
5585 spa_close(spa
, FTAG
);
5591 zfsdev_get_state_impl(minor_t minor
, enum zfsdev_state_type which
)
5595 for (zs
= zfsdev_state_list
; zs
!= NULL
; zs
= zs
->zs_next
) {
5596 if (zs
->zs_minor
== minor
) {
5600 return (zs
->zs_onexit
);
5602 return (zs
->zs_zevent
);
5613 zfsdev_get_state(minor_t minor
, enum zfsdev_state_type which
)
5617 ptr
= zfsdev_get_state_impl(minor
, which
);
5623 zfsdev_getminor(struct file
*filp
, minor_t
*minorp
)
5625 zfsdev_state_t
*zs
, *fpd
;
5627 ASSERT(filp
!= NULL
);
5628 ASSERT(!MUTEX_HELD(&zfsdev_state_lock
));
5630 fpd
= filp
->private_data
;
5634 mutex_enter(&zfsdev_state_lock
);
5636 for (zs
= zfsdev_state_list
; zs
!= NULL
; zs
= zs
->zs_next
) {
5638 if (zs
->zs_minor
== -1)
5642 *minorp
= fpd
->zs_minor
;
5643 mutex_exit(&zfsdev_state_lock
);
5648 mutex_exit(&zfsdev_state_lock
);
5654 * Find a free minor number. The zfsdev_state_list is expected to
5655 * be short since it is only a list of currently open file handles.
5658 zfsdev_minor_alloc(void)
5660 static minor_t last_minor
= 0;
5663 ASSERT(MUTEX_HELD(&zfsdev_state_lock
));
5665 for (m
= last_minor
+ 1; m
!= last_minor
; m
++) {
5666 if (m
> ZFSDEV_MAX_MINOR
)
5668 if (zfsdev_get_state_impl(m
, ZST_ALL
) == NULL
) {
5678 zfsdev_state_init(struct file
*filp
)
5680 zfsdev_state_t
*zs
, *zsprev
= NULL
;
5682 boolean_t newzs
= B_FALSE
;
5684 ASSERT(MUTEX_HELD(&zfsdev_state_lock
));
5686 minor
= zfsdev_minor_alloc();
5688 return (SET_ERROR(ENXIO
));
5690 for (zs
= zfsdev_state_list
; zs
!= NULL
; zs
= zs
->zs_next
) {
5691 if (zs
->zs_minor
== -1)
5697 zs
= kmem_zalloc(sizeof (zfsdev_state_t
), KM_SLEEP
);
5702 filp
->private_data
= zs
;
5704 zfs_onexit_init((zfs_onexit_t
**)&zs
->zs_onexit
);
5705 zfs_zevent_init((zfs_zevent_t
**)&zs
->zs_zevent
);
5709 * In order to provide for lock-free concurrent read access
5710 * to the minor list in zfsdev_get_state_impl(), new entries
5711 * must be completely written before linking them into the
5712 * list whereas existing entries are already linked; the last
5713 * operation must be updating zs_minor (from -1 to the new
5717 zs
->zs_minor
= minor
;
5719 zsprev
->zs_next
= zs
;
5722 zs
->zs_minor
= minor
;
5729 zfsdev_state_destroy(struct file
*filp
)
5733 ASSERT(MUTEX_HELD(&zfsdev_state_lock
));
5734 ASSERT(filp
->private_data
!= NULL
);
5736 zs
= filp
->private_data
;
5738 zfs_onexit_destroy(zs
->zs_onexit
);
5739 zfs_zevent_destroy(zs
->zs_zevent
);
5745 zfsdev_open(struct inode
*ino
, struct file
*filp
)
5749 mutex_enter(&zfsdev_state_lock
);
5750 error
= zfsdev_state_init(filp
);
5751 mutex_exit(&zfsdev_state_lock
);
5757 zfsdev_release(struct inode
*ino
, struct file
*filp
)
5761 mutex_enter(&zfsdev_state_lock
);
5762 error
= zfsdev_state_destroy(filp
);
5763 mutex_exit(&zfsdev_state_lock
);
5769 zfsdev_ioctl(struct file
*filp
, unsigned cmd
, unsigned long arg
)
5773 int error
, rc
, flag
= 0;
5774 const zfs_ioc_vec_t
*vec
;
5775 char *saved_poolname
= NULL
;
5776 nvlist_t
*innvl
= NULL
;
5777 fstrans_cookie_t cookie
;
5779 vecnum
= cmd
- ZFS_IOC_FIRST
;
5780 if (vecnum
>= sizeof (zfs_ioc_vec
) / sizeof (zfs_ioc_vec
[0]))
5781 return (-SET_ERROR(EINVAL
));
5782 vec
= &zfs_ioc_vec
[vecnum
];
5785 * The registered ioctl list may be sparse, verify that either
5786 * a normal or legacy handler are registered.
5788 if (vec
->zvec_func
== NULL
&& vec
->zvec_legacy_func
== NULL
)
5789 return (-SET_ERROR(EINVAL
));
5791 zc
= kmem_zalloc(sizeof (zfs_cmd_t
), KM_SLEEP
);
5793 error
= ddi_copyin((void *)arg
, zc
, sizeof (zfs_cmd_t
), flag
);
5795 error
= SET_ERROR(EFAULT
);
5799 zc
->zc_iflags
= flag
& FKIOCTL
;
5800 if (zc
->zc_nvlist_src_size
!= 0) {
5801 error
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
5802 zc
->zc_iflags
, &innvl
);
5808 * Ensure that all pool/dataset names are valid before we pass down to
5811 zc
->zc_name
[sizeof (zc
->zc_name
) - 1] = '\0';
5812 switch (vec
->zvec_namecheck
) {
5814 if (pool_namecheck(zc
->zc_name
, NULL
, NULL
) != 0)
5815 error
= SET_ERROR(EINVAL
);
5817 error
= pool_status_check(zc
->zc_name
,
5818 vec
->zvec_namecheck
, vec
->zvec_pool_check
);
5822 if (dataset_namecheck(zc
->zc_name
, NULL
, NULL
) != 0)
5823 error
= SET_ERROR(EINVAL
);
5825 error
= pool_status_check(zc
->zc_name
,
5826 vec
->zvec_namecheck
, vec
->zvec_pool_check
);
5834 if (error
== 0 && !(flag
& FKIOCTL
))
5835 error
= vec
->zvec_secpolicy(zc
, innvl
, CRED());
5840 /* legacy ioctls can modify zc_name */
5841 saved_poolname
= strdup(zc
->zc_name
);
5842 if (saved_poolname
== NULL
) {
5843 error
= SET_ERROR(ENOMEM
);
5846 saved_poolname
[strcspn(saved_poolname
, "/@#")] = '\0';
5849 if (vec
->zvec_func
!= NULL
) {
5853 nvlist_t
*lognv
= NULL
;
5855 ASSERT(vec
->zvec_legacy_func
== NULL
);
5858 * Add the innvl to the lognv before calling the func,
5859 * in case the func changes the innvl.
5861 if (vec
->zvec_allow_log
) {
5862 lognv
= fnvlist_alloc();
5863 fnvlist_add_string(lognv
, ZPOOL_HIST_IOCTL
,
5865 if (!nvlist_empty(innvl
)) {
5866 fnvlist_add_nvlist(lognv
, ZPOOL_HIST_INPUT_NVL
,
5871 outnvl
= fnvlist_alloc();
5872 cookie
= spl_fstrans_mark();
5873 error
= vec
->zvec_func(zc
->zc_name
, innvl
, outnvl
);
5874 spl_fstrans_unmark(cookie
);
5876 if (error
== 0 && vec
->zvec_allow_log
&&
5877 spa_open(zc
->zc_name
, &spa
, FTAG
) == 0) {
5878 if (!nvlist_empty(outnvl
)) {
5879 fnvlist_add_nvlist(lognv
, ZPOOL_HIST_OUTPUT_NVL
,
5882 (void) spa_history_log_nvl(spa
, lognv
);
5883 spa_close(spa
, FTAG
);
5885 fnvlist_free(lognv
);
5887 if (!nvlist_empty(outnvl
) || zc
->zc_nvlist_dst_size
!= 0) {
5889 if (vec
->zvec_smush_outnvlist
) {
5890 smusherror
= nvlist_smush(outnvl
,
5891 zc
->zc_nvlist_dst_size
);
5893 if (smusherror
== 0)
5894 puterror
= put_nvlist(zc
, outnvl
);
5900 nvlist_free(outnvl
);
5902 cookie
= spl_fstrans_mark();
5903 error
= vec
->zvec_legacy_func(zc
);
5904 spl_fstrans_unmark(cookie
);
5909 rc
= ddi_copyout(zc
, (void *)arg
, sizeof (zfs_cmd_t
), flag
);
5910 if (error
== 0 && rc
!= 0)
5911 error
= SET_ERROR(EFAULT
);
5912 if (error
== 0 && vec
->zvec_allow_log
) {
5913 char *s
= tsd_get(zfs_allow_log_key
);
5916 (void) tsd_set(zfs_allow_log_key
, saved_poolname
);
5918 if (saved_poolname
!= NULL
)
5919 strfree(saved_poolname
);
5922 kmem_free(zc
, sizeof (zfs_cmd_t
));
5926 #ifdef CONFIG_COMPAT
5928 zfsdev_compat_ioctl(struct file
*filp
, unsigned cmd
, unsigned long arg
)
5930 return (zfsdev_ioctl(filp
, cmd
, arg
));
5933 #define zfsdev_compat_ioctl NULL
5936 static const struct file_operations zfsdev_fops
= {
5937 .open
= zfsdev_open
,
5938 .release
= zfsdev_release
,
5939 .unlocked_ioctl
= zfsdev_ioctl
,
5940 .compat_ioctl
= zfsdev_compat_ioctl
,
5941 .owner
= THIS_MODULE
,
5944 static struct miscdevice zfs_misc
= {
5945 .minor
= MISC_DYNAMIC_MINOR
,
5947 .fops
= &zfsdev_fops
,
5955 mutex_init(&zfsdev_state_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
5956 zfsdev_state_list
= kmem_zalloc(sizeof (zfsdev_state_t
), KM_SLEEP
);
5957 zfsdev_state_list
->zs_minor
= -1;
5959 error
= misc_register(&zfs_misc
);
5961 printk(KERN_INFO
"ZFS: misc_register() failed %d\n", error
);
5971 zfsdev_state_t
*zs
, *zsprev
= NULL
;
5973 misc_deregister(&zfs_misc
);
5974 mutex_destroy(&zfsdev_state_lock
);
5976 for (zs
= zfsdev_state_list
; zs
!= NULL
; zs
= zs
->zs_next
) {
5978 kmem_free(zsprev
, sizeof (zfsdev_state_t
));
5982 kmem_free(zsprev
, sizeof (zfsdev_state_t
));
5986 zfs_allow_log_destroy(void *arg
)
5988 char *poolname
= arg
;
5993 #define ZFS_DEBUG_STR " (DEBUG mode)"
5995 #define ZFS_DEBUG_STR ""
6003 error
= -vn_set_pwd("/");
6006 "ZFS: Warning unable to set pwd to '/': %d\n", error
);
6010 if ((error
= -zvol_init()) != 0)
6013 spa_init(FREAD
| FWRITE
);
6018 if ((error
= zfs_attach()) != 0)
6021 tsd_create(&zfs_fsyncer_key
, NULL
);
6022 tsd_create(&rrw_tsd_key
, rrw_tsd_destroy
);
6023 tsd_create(&zfs_allow_log_key
, zfs_allow_log_destroy
);
6025 printk(KERN_NOTICE
"ZFS: Loaded module v%s-%s%s, "
6026 "ZFS pool version %s, ZFS filesystem version %s\n",
6027 ZFS_META_VERSION
, ZFS_META_RELEASE
, ZFS_DEBUG_STR
,
6028 SPA_VERSION_STRING
, ZPL_VERSION_STRING
);
6029 #ifndef CONFIG_FS_POSIX_ACL
6030 printk(KERN_NOTICE
"ZFS: Posix ACLs disabled by kernel\n");
6031 #endif /* CONFIG_FS_POSIX_ACL */
6039 printk(KERN_NOTICE
"ZFS: Failed to Load ZFS Filesystem v%s-%s%s"
6040 ", rc = %d\n", ZFS_META_VERSION
, ZFS_META_RELEASE
,
6041 ZFS_DEBUG_STR
, error
);
6054 tsd_destroy(&zfs_fsyncer_key
);
6055 tsd_destroy(&rrw_tsd_key
);
6056 tsd_destroy(&zfs_allow_log_key
);
6058 printk(KERN_NOTICE
"ZFS: Unloaded module v%s-%s%s\n",
6059 ZFS_META_VERSION
, ZFS_META_RELEASE
, ZFS_DEBUG_STR
);
6066 MODULE_DESCRIPTION("ZFS");
6067 MODULE_AUTHOR(ZFS_META_AUTHOR
);
6068 MODULE_LICENSE(ZFS_META_LICENSE
);
6069 MODULE_VERSION(ZFS_META_VERSION
"-" ZFS_META_RELEASE
);
6070 #endif /* HAVE_SPL */