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 2011 Nexenta Systems, Inc. All rights reserved.
28 * Copyright (c) 2012, Joyent, Inc. All rights reserved.
29 * Copyright (c) 201i3 by Delphix. All rights reserved.
30 * Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
31 * Copyright (c) 2013 Steven Hartland. All rights reserved.
37 * This file handles the ioctls to /dev/zfs, used for configuring ZFS storage
38 * pools and filesystems, e.g. with /sbin/zfs and /sbin/zpool.
40 * There are two ways that we handle ioctls: the legacy way where almost
41 * all of the logic is in the ioctl callback, and the new way where most
42 * of the marshalling is handled in the common entry point, zfsdev_ioctl().
44 * Non-legacy ioctls should be registered by calling
45 * zfs_ioctl_register() from zfs_ioctl_init(). The ioctl is invoked
46 * from userland by lzc_ioctl().
48 * The registration arguments are as follows:
51 * The name of the ioctl. This is used for history logging. If the
52 * ioctl returns successfully (the callback returns 0), and allow_log
53 * is true, then a history log entry will be recorded with the input &
54 * output nvlists. The log entry can be printed with "zpool history -i".
57 * The ioctl request number, which userland will pass to ioctl(2).
58 * The ioctl numbers can change from release to release, because
59 * the caller (libzfs) must be matched to the kernel.
61 * zfs_secpolicy_func_t *secpolicy
62 * This function will be called before the zfs_ioc_func_t, to
63 * determine if this operation is permitted. It should return EPERM
64 * on failure, and 0 on success. Checks include determining if the
65 * dataset is visible in this zone, and if the user has either all
66 * zfs privileges in the zone (SYS_MOUNT), or has been granted permission
67 * to do this operation on this dataset with "zfs allow".
69 * zfs_ioc_namecheck_t namecheck
70 * This specifies what to expect in the zfs_cmd_t:zc_name -- a pool
71 * name, a dataset name, or nothing. If the name is not well-formed,
72 * the ioctl will fail and the callback will not be called.
73 * Therefore, the callback can assume that the name is well-formed
74 * (e.g. is null-terminated, doesn't have more than one '@' character,
75 * doesn't have invalid characters).
77 * zfs_ioc_poolcheck_t pool_check
78 * This specifies requirements on the pool state. If the pool does
79 * not meet them (is suspended or is readonly), the ioctl will fail
80 * and the callback will not be called. If any checks are specified
81 * (i.e. it is not POOL_CHECK_NONE), namecheck must not be NO_NAME.
82 * Multiple checks can be or-ed together (e.g. POOL_CHECK_SUSPENDED |
83 * POOL_CHECK_READONLY).
85 * boolean_t smush_outnvlist
86 * If smush_outnvlist is true, then the output is presumed to be a
87 * list of errors, and it will be "smushed" down to fit into the
88 * caller's buffer, by removing some entries and replacing them with a
89 * single "N_MORE_ERRORS" entry indicating how many were removed. See
90 * nvlist_smush() for details. If smush_outnvlist is false, and the
91 * outnvlist does not fit into the userland-provided buffer, then the
92 * ioctl will fail with ENOMEM.
94 * zfs_ioc_func_t *func
95 * The callback function that will perform the operation.
97 * The callback should return 0 on success, or an error number on
98 * failure. If the function fails, the userland ioctl will return -1,
99 * and errno will be set to the callback's return value. The callback
100 * will be called with the following arguments:
103 * The name of the pool or dataset to operate on, from
104 * zfs_cmd_t:zc_name. The 'namecheck' argument specifies the
105 * expected type (pool, dataset, or none).
108 * The input nvlist, deserialized from zfs_cmd_t:zc_nvlist_src. Or
109 * NULL if no input nvlist was provided. Changes to this nvlist are
110 * ignored. If the input nvlist could not be deserialized, the
111 * ioctl will fail and the callback will not be called.
114 * The output nvlist, initially empty. The callback can fill it in,
115 * and it will be returned to userland by serializing it into
116 * zfs_cmd_t:zc_nvlist_dst. If it is non-empty, and serialization
117 * fails (e.g. because the caller didn't supply a large enough
118 * buffer), then the overall ioctl will fail. See the
119 * 'smush_nvlist' argument above for additional behaviors.
121 * There are two typical uses of the output nvlist:
122 * - To return state, e.g. property values. In this case,
123 * smush_outnvlist should be false. If the buffer was not large
124 * enough, the caller will reallocate a larger buffer and try
127 * - To return multiple errors from an ioctl which makes on-disk
128 * changes. In this case, smush_outnvlist should be true.
129 * Ioctls which make on-disk modifications should generally not
130 * use the outnvl if they succeed, because the caller can not
131 * distinguish between the operation failing, and
132 * deserialization failing.
135 #include <sys/types.h>
136 #include <sys/param.h>
137 #include <sys/errno.h>
140 #include <sys/modctl.h>
141 #include <sys/open.h>
142 #include <sys/file.h>
143 #include <sys/kmem.h>
144 #include <sys/conf.h>
145 #include <sys/cmn_err.h>
146 #include <sys/stat.h>
147 #include <sys/zfs_ioctl.h>
148 #include <sys/zfs_vfsops.h>
149 #include <sys/zfs_znode.h>
152 #include <sys/spa_impl.h>
153 #include <sys/vdev.h>
154 #include <sys/priv_impl.h>
156 #include <sys/dsl_dir.h>
157 #include <sys/dsl_dataset.h>
158 #include <sys/dsl_prop.h>
159 #include <sys/dsl_deleg.h>
160 #include <sys/dmu_objset.h>
161 #include <sys/dmu_impl.h>
162 #include <sys/dmu_tx.h>
164 #include <sys/sunddi.h>
165 #include <sys/sunldi.h>
166 #include <sys/policy.h>
167 #include <sys/zone.h>
168 #include <sys/nvpair.h>
169 #include <sys/pathname.h>
170 #include <sys/mount.h>
172 #include <sys/fs/zfs.h>
173 #include <sys/zfs_ctldir.h>
174 #include <sys/zfs_dir.h>
175 #include <sys/zfs_onexit.h>
176 #include <sys/zvol.h>
177 #include <sys/dsl_scan.h>
178 #include <sharefs/share.h>
179 #include <sys/fm/util.h>
181 #include <sys/dmu_send.h>
182 #include <sys/dsl_destroy.h>
183 #include <sys/dsl_userhold.h>
184 #include <sys/zfeature.h>
186 #include <linux/miscdevice.h>
188 #include "zfs_namecheck.h"
189 #include "zfs_prop.h"
190 #include "zfs_deleg.h"
191 #include "zfs_comutil.h"
193 kmutex_t zfsdev_state_lock
;
194 list_t zfsdev_state_list
;
196 extern void zfs_init(void);
197 extern void zfs_fini(void);
199 uint_t zfs_fsyncer_key
;
200 extern uint_t rrw_tsd_key
;
201 static uint_t zfs_allow_log_key
;
203 typedef int zfs_ioc_legacy_func_t(zfs_cmd_t
*);
204 typedef int zfs_ioc_func_t(const char *, nvlist_t
*, nvlist_t
*);
205 typedef int zfs_secpolicy_func_t(zfs_cmd_t
*, nvlist_t
*, cred_t
*);
211 } zfs_ioc_namecheck_t
;
214 POOL_CHECK_NONE
= 1 << 0,
215 POOL_CHECK_SUSPENDED
= 1 << 1,
216 POOL_CHECK_READONLY
= 1 << 2,
217 } zfs_ioc_poolcheck_t
;
219 typedef struct zfs_ioc_vec
{
220 zfs_ioc_legacy_func_t
*zvec_legacy_func
;
221 zfs_ioc_func_t
*zvec_func
;
222 zfs_secpolicy_func_t
*zvec_secpolicy
;
223 zfs_ioc_namecheck_t zvec_namecheck
;
224 boolean_t zvec_allow_log
;
225 zfs_ioc_poolcheck_t zvec_pool_check
;
226 boolean_t zvec_smush_outnvlist
;
227 const char *zvec_name
;
230 /* This array is indexed by zfs_userquota_prop_t */
231 static const char *userquota_perms
[] = {
232 ZFS_DELEG_PERM_USERUSED
,
233 ZFS_DELEG_PERM_USERQUOTA
,
234 ZFS_DELEG_PERM_GROUPUSED
,
235 ZFS_DELEG_PERM_GROUPQUOTA
,
238 static int zfs_ioc_userspace_upgrade(zfs_cmd_t
*zc
);
239 static int zfs_check_settable(const char *name
, nvpair_t
*property
,
241 static int zfs_check_clearable(char *dataset
, nvlist_t
*props
,
243 static int zfs_fill_zplprops_root(uint64_t, nvlist_t
*, nvlist_t
*,
245 int zfs_set_prop_nvlist(const char *, zprop_source_t
, nvlist_t
*, nvlist_t
*);
246 static int get_nvlist(uint64_t nvl
, uint64_t size
, int iflag
, nvlist_t
**nvp
);
248 static int zfs_prop_activate_feature(spa_t
*spa
, zfeature_info_t
*feature
);
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
| KM_NODEBUG
);
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 if (!INGLOBALZONE(curproc
)) {
597 char setpoint
[MAXNAMELEN
];
599 * Unprivileged users are allowed to modify the
600 * quota on things *under* (ie. contained by)
601 * the thing they own.
603 if (dsl_prop_get_integer(dsname
, "zoned", &zoned
,
605 return (SET_ERROR(EPERM
));
606 if (!zoned
|| strlen(dsname
) <= strlen(setpoint
))
607 return (SET_ERROR(EPERM
));
611 case ZFS_PROP_MLSLABEL
:
612 if (!is_system_labeled())
613 return (SET_ERROR(EPERM
));
615 if (nvpair_value_string(propval
, &strval
) == 0) {
618 err
= zfs_set_slabel_policy(dsname
, strval
, CRED());
625 return (zfs_secpolicy_write_perms(dsname
, zfs_prop_to_name(prop
), cr
));
630 zfs_secpolicy_set_fsacl(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
634 error
= zfs_dozonecheck(zc
->zc_name
, cr
);
639 * permission to set permissions will be evaluated later in
640 * dsl_deleg_can_allow()
647 zfs_secpolicy_rollback(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
649 return (zfs_secpolicy_write_perms(zc
->zc_name
,
650 ZFS_DELEG_PERM_ROLLBACK
, cr
));
655 zfs_secpolicy_send(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
663 * Generate the current snapshot name from the given objsetid, then
664 * use that name for the secpolicy/zone checks.
666 cp
= strchr(zc
->zc_name
, '@');
668 return (SET_ERROR(EINVAL
));
669 error
= dsl_pool_hold(zc
->zc_name
, FTAG
, &dp
);
673 error
= dsl_dataset_hold_obj(dp
, zc
->zc_sendobj
, FTAG
, &ds
);
675 dsl_pool_rele(dp
, FTAG
);
679 dsl_dataset_name(ds
, zc
->zc_name
);
681 error
= zfs_secpolicy_write_perms_ds(zc
->zc_name
, ds
,
682 ZFS_DELEG_PERM_SEND
, cr
);
683 dsl_dataset_rele(ds
, FTAG
);
684 dsl_pool_rele(dp
, FTAG
);
691 zfs_secpolicy_send_new(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
693 return (zfs_secpolicy_write_perms(zc
->zc_name
,
694 ZFS_DELEG_PERM_SEND
, cr
));
697 #ifdef HAVE_SMB_SHARE
700 zfs_secpolicy_deleg_share(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
705 if ((error
= lookupname(zc
->zc_value
, UIO_SYSSPACE
,
706 NO_FOLLOW
, NULL
, &vp
)) != 0)
709 /* Now make sure mntpnt and dataset are ZFS */
711 if (vp
->v_vfsp
->vfs_fstype
!= zfsfstype
||
712 (strcmp((char *)refstr_value(vp
->v_vfsp
->vfs_resource
),
713 zc
->zc_name
) != 0)) {
715 return (SET_ERROR(EPERM
));
719 return (dsl_deleg_access(zc
->zc_name
,
720 ZFS_DELEG_PERM_SHARE
, cr
));
722 #endif /* HAVE_SMB_SHARE */
725 zfs_secpolicy_share(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
727 #ifdef HAVE_SMB_SHARE
728 if (!INGLOBALZONE(curproc
))
729 return (SET_ERROR(EPERM
));
731 if (secpolicy_nfs(cr
) == 0) {
734 return (zfs_secpolicy_deleg_share(zc
, innvl
, cr
));
737 return (SET_ERROR(ENOTSUP
));
738 #endif /* HAVE_SMB_SHARE */
742 zfs_secpolicy_smb_acl(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
744 #ifdef HAVE_SMB_SHARE
745 if (!INGLOBALZONE(curproc
))
746 return (SET_ERROR(EPERM
));
748 if (secpolicy_smb(cr
) == 0) {
751 return (zfs_secpolicy_deleg_share(zc
, innvl
, cr
));
754 return (SET_ERROR(ENOTSUP
));
755 #endif /* HAVE_SMB_SHARE */
759 zfs_get_parent(const char *datasetname
, char *parent
, int parentsize
)
764 * Remove the @bla or /bla from the end of the name to get the parent.
766 (void) strncpy(parent
, datasetname
, parentsize
);
767 cp
= strrchr(parent
, '@');
771 cp
= strrchr(parent
, '/');
773 return (SET_ERROR(ENOENT
));
781 zfs_secpolicy_destroy_perms(const char *name
, cred_t
*cr
)
785 if ((error
= zfs_secpolicy_write_perms(name
,
786 ZFS_DELEG_PERM_MOUNT
, cr
)) != 0)
789 return (zfs_secpolicy_write_perms(name
, ZFS_DELEG_PERM_DESTROY
, cr
));
794 zfs_secpolicy_destroy(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
796 return (zfs_secpolicy_destroy_perms(zc
->zc_name
, cr
));
800 * Destroying snapshots with delegated permissions requires
801 * descendant mount and destroy permissions.
805 zfs_secpolicy_destroy_snaps(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
808 nvpair_t
*pair
, *nextpair
;
811 if (nvlist_lookup_nvlist(innvl
, "snaps", &snaps
) != 0)
812 return (SET_ERROR(EINVAL
));
813 for (pair
= nvlist_next_nvpair(snaps
, NULL
); pair
!= NULL
;
818 error
= dsl_pool_hold(nvpair_name(pair
), FTAG
, &dp
);
821 nextpair
= nvlist_next_nvpair(snaps
, pair
);
822 error
= dsl_dataset_hold(dp
, nvpair_name(pair
), FTAG
, &ds
);
824 dsl_dataset_rele(ds
, FTAG
);
825 dsl_pool_rele(dp
, FTAG
);
828 error
= zfs_secpolicy_destroy_perms(nvpair_name(pair
),
830 } else if (error
== ENOENT
) {
832 * Ignore any snapshots that don't exist (we consider
833 * them "already destroyed"). Remove the name from the
834 * nvl here in case the snapshot is created between
835 * now and when we try to destroy it (in which case
836 * we don't want to destroy it since we haven't
837 * checked for permission).
839 fnvlist_remove_nvpair(snaps
, pair
);
850 zfs_secpolicy_rename_perms(const char *from
, const char *to
, cred_t
*cr
)
852 char parentname
[MAXNAMELEN
];
855 if ((error
= zfs_secpolicy_write_perms(from
,
856 ZFS_DELEG_PERM_RENAME
, cr
)) != 0)
859 if ((error
= zfs_secpolicy_write_perms(from
,
860 ZFS_DELEG_PERM_MOUNT
, cr
)) != 0)
863 if ((error
= zfs_get_parent(to
, parentname
,
864 sizeof (parentname
))) != 0)
867 if ((error
= zfs_secpolicy_write_perms(parentname
,
868 ZFS_DELEG_PERM_CREATE
, cr
)) != 0)
871 if ((error
= zfs_secpolicy_write_perms(parentname
,
872 ZFS_DELEG_PERM_MOUNT
, cr
)) != 0)
880 zfs_secpolicy_rename(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
882 return (zfs_secpolicy_rename_perms(zc
->zc_name
, zc
->zc_value
, cr
));
887 zfs_secpolicy_promote(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
890 dsl_dataset_t
*clone
;
893 error
= zfs_secpolicy_write_perms(zc
->zc_name
,
894 ZFS_DELEG_PERM_PROMOTE
, cr
);
898 error
= dsl_pool_hold(zc
->zc_name
, FTAG
, &dp
);
902 error
= dsl_dataset_hold(dp
, zc
->zc_name
, FTAG
, &clone
);
905 char parentname
[MAXNAMELEN
];
906 dsl_dataset_t
*origin
= NULL
;
910 error
= dsl_dataset_hold_obj(dd
->dd_pool
,
911 dd
->dd_phys
->dd_origin_obj
, FTAG
, &origin
);
913 dsl_dataset_rele(clone
, FTAG
);
914 dsl_pool_rele(dp
, FTAG
);
918 error
= zfs_secpolicy_write_perms_ds(zc
->zc_name
, clone
,
919 ZFS_DELEG_PERM_MOUNT
, cr
);
921 dsl_dataset_name(origin
, parentname
);
923 error
= zfs_secpolicy_write_perms_ds(parentname
, origin
,
924 ZFS_DELEG_PERM_PROMOTE
, cr
);
926 dsl_dataset_rele(clone
, FTAG
);
927 dsl_dataset_rele(origin
, FTAG
);
929 dsl_pool_rele(dp
, FTAG
);
935 zfs_secpolicy_recv(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
939 if ((error
= zfs_secpolicy_write_perms(zc
->zc_name
,
940 ZFS_DELEG_PERM_RECEIVE
, cr
)) != 0)
943 if ((error
= zfs_secpolicy_write_perms(zc
->zc_name
,
944 ZFS_DELEG_PERM_MOUNT
, cr
)) != 0)
947 return (zfs_secpolicy_write_perms(zc
->zc_name
,
948 ZFS_DELEG_PERM_CREATE
, cr
));
952 zfs_secpolicy_snapshot_perms(const char *name
, cred_t
*cr
)
954 return (zfs_secpolicy_write_perms(name
,
955 ZFS_DELEG_PERM_SNAPSHOT
, cr
));
959 * Check for permission to create each snapshot in the nvlist.
963 zfs_secpolicy_snapshot(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
969 if (nvlist_lookup_nvlist(innvl
, "snaps", &snaps
) != 0)
970 return (SET_ERROR(EINVAL
));
971 for (pair
= nvlist_next_nvpair(snaps
, NULL
); pair
!= NULL
;
972 pair
= nvlist_next_nvpair(snaps
, pair
)) {
973 char *name
= nvpair_name(pair
);
974 char *atp
= strchr(name
, '@');
977 error
= SET_ERROR(EINVAL
);
981 error
= zfs_secpolicy_snapshot_perms(name
, cr
);
991 zfs_secpolicy_log_history(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
994 * Even root must have a proper TSD so that we know what pool
997 if (tsd_get(zfs_allow_log_key
) == NULL
)
998 return (SET_ERROR(EPERM
));
1003 zfs_secpolicy_create_clone(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1005 char parentname
[MAXNAMELEN
];
1009 if ((error
= zfs_get_parent(zc
->zc_name
, parentname
,
1010 sizeof (parentname
))) != 0)
1013 if (nvlist_lookup_string(innvl
, "origin", &origin
) == 0 &&
1014 (error
= zfs_secpolicy_write_perms(origin
,
1015 ZFS_DELEG_PERM_CLONE
, cr
)) != 0)
1018 if ((error
= zfs_secpolicy_write_perms(parentname
,
1019 ZFS_DELEG_PERM_CREATE
, cr
)) != 0)
1022 return (zfs_secpolicy_write_perms(parentname
,
1023 ZFS_DELEG_PERM_MOUNT
, cr
));
1027 * Policy for pool operations - create/destroy pools, add vdevs, etc. Requires
1028 * SYS_CONFIG privilege, which is not available in a local zone.
1032 zfs_secpolicy_config(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1034 if (secpolicy_sys_config(cr
, B_FALSE
) != 0)
1035 return (SET_ERROR(EPERM
));
1041 * Policy for object to name lookups.
1045 zfs_secpolicy_diff(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1049 if ((error
= secpolicy_sys_config(cr
, B_FALSE
)) == 0)
1052 error
= zfs_secpolicy_write_perms(zc
->zc_name
, ZFS_DELEG_PERM_DIFF
, cr
);
1057 * Policy for fault injection. Requires all privileges.
1061 zfs_secpolicy_inject(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1063 return (secpolicy_zinject(cr
));
1068 zfs_secpolicy_inherit_prop(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1070 zfs_prop_t prop
= zfs_name_to_prop(zc
->zc_value
);
1072 if (prop
== ZPROP_INVAL
) {
1073 if (!zfs_prop_user(zc
->zc_value
))
1074 return (SET_ERROR(EINVAL
));
1075 return (zfs_secpolicy_write_perms(zc
->zc_name
,
1076 ZFS_DELEG_PERM_USERPROP
, cr
));
1078 return (zfs_secpolicy_setprop(zc
->zc_name
, prop
,
1084 zfs_secpolicy_userspace_one(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1086 int err
= zfs_secpolicy_read(zc
, innvl
, cr
);
1090 if (zc
->zc_objset_type
>= ZFS_NUM_USERQUOTA_PROPS
)
1091 return (SET_ERROR(EINVAL
));
1093 if (zc
->zc_value
[0] == 0) {
1095 * They are asking about a posix uid/gid. If it's
1096 * themself, allow it.
1098 if (zc
->zc_objset_type
== ZFS_PROP_USERUSED
||
1099 zc
->zc_objset_type
== ZFS_PROP_USERQUOTA
) {
1100 if (zc
->zc_guid
== crgetuid(cr
))
1103 if (groupmember(zc
->zc_guid
, cr
))
1108 return (zfs_secpolicy_write_perms(zc
->zc_name
,
1109 userquota_perms
[zc
->zc_objset_type
], cr
));
1113 zfs_secpolicy_userspace_many(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1115 int err
= zfs_secpolicy_read(zc
, innvl
, cr
);
1119 if (zc
->zc_objset_type
>= ZFS_NUM_USERQUOTA_PROPS
)
1120 return (SET_ERROR(EINVAL
));
1122 return (zfs_secpolicy_write_perms(zc
->zc_name
,
1123 userquota_perms
[zc
->zc_objset_type
], cr
));
1128 zfs_secpolicy_userspace_upgrade(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1130 return (zfs_secpolicy_setprop(zc
->zc_name
, ZFS_PROP_VERSION
,
1136 zfs_secpolicy_hold(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1142 error
= nvlist_lookup_nvlist(innvl
, "holds", &holds
);
1144 return (SET_ERROR(EINVAL
));
1146 for (pair
= nvlist_next_nvpair(holds
, NULL
); pair
!= NULL
;
1147 pair
= nvlist_next_nvpair(holds
, pair
)) {
1148 char fsname
[MAXNAMELEN
];
1149 error
= dmu_fsname(nvpair_name(pair
), fsname
);
1152 error
= zfs_secpolicy_write_perms(fsname
,
1153 ZFS_DELEG_PERM_HOLD
, cr
);
1162 zfs_secpolicy_release(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1167 for (pair
= nvlist_next_nvpair(innvl
, NULL
); pair
!= NULL
;
1168 pair
= nvlist_next_nvpair(innvl
, pair
)) {
1169 char fsname
[MAXNAMELEN
];
1170 error
= dmu_fsname(nvpair_name(pair
), fsname
);
1173 error
= zfs_secpolicy_write_perms(fsname
,
1174 ZFS_DELEG_PERM_RELEASE
, cr
);
1182 * Policy for allowing temporary snapshots to be taken or released
1185 zfs_secpolicy_tmp_snapshot(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1188 * A temporary snapshot is the same as a snapshot,
1189 * hold, destroy and release all rolled into one.
1190 * Delegated diff alone is sufficient that we allow this.
1194 if ((error
= zfs_secpolicy_write_perms(zc
->zc_name
,
1195 ZFS_DELEG_PERM_DIFF
, cr
)) == 0)
1198 error
= zfs_secpolicy_snapshot_perms(zc
->zc_name
, cr
);
1200 error
= zfs_secpolicy_hold(zc
, innvl
, cr
);
1202 error
= zfs_secpolicy_release(zc
, innvl
, cr
);
1204 error
= zfs_secpolicy_destroy(zc
, innvl
, cr
);
1209 * Returns the nvlist as specified by the user in the zfs_cmd_t.
1212 get_nvlist(uint64_t nvl
, uint64_t size
, int iflag
, nvlist_t
**nvp
)
1216 nvlist_t
*list
= NULL
;
1219 * Read in and unpack the user-supplied nvlist.
1222 return (SET_ERROR(EINVAL
));
1224 packed
= kmem_alloc(size
, KM_SLEEP
| KM_NODEBUG
);
1226 if ((error
= ddi_copyin((void *)(uintptr_t)nvl
, packed
, size
,
1228 kmem_free(packed
, size
);
1232 if ((error
= nvlist_unpack(packed
, size
, &list
, 0)) != 0) {
1233 kmem_free(packed
, size
);
1237 kmem_free(packed
, size
);
1244 * Reduce the size of this nvlist until it can be serialized in 'max' bytes.
1245 * Entries will be removed from the end of the nvlist, and one int32 entry
1246 * named "N_MORE_ERRORS" will be added indicating how many entries were
1250 nvlist_smush(nvlist_t
*errors
, size_t max
)
1254 size
= fnvlist_size(errors
);
1257 nvpair_t
*more_errors
;
1261 return (SET_ERROR(ENOMEM
));
1263 fnvlist_add_int32(errors
, ZPROP_N_MORE_ERRORS
, 0);
1264 more_errors
= nvlist_prev_nvpair(errors
, NULL
);
1267 nvpair_t
*pair
= nvlist_prev_nvpair(errors
,
1269 fnvlist_remove_nvpair(errors
, pair
);
1271 size
= fnvlist_size(errors
);
1272 } while (size
> max
);
1274 fnvlist_remove_nvpair(errors
, more_errors
);
1275 fnvlist_add_int32(errors
, ZPROP_N_MORE_ERRORS
, n
);
1276 ASSERT3U(fnvlist_size(errors
), <=, max
);
1283 put_nvlist(zfs_cmd_t
*zc
, nvlist_t
*nvl
)
1285 char *packed
= NULL
;
1289 size
= fnvlist_size(nvl
);
1291 if (size
> zc
->zc_nvlist_dst_size
) {
1292 error
= SET_ERROR(ENOMEM
);
1294 packed
= fnvlist_pack(nvl
, &size
);
1295 if (ddi_copyout(packed
, (void *)(uintptr_t)zc
->zc_nvlist_dst
,
1296 size
, zc
->zc_iflags
) != 0)
1297 error
= SET_ERROR(EFAULT
);
1298 fnvlist_pack_free(packed
, size
);
1301 zc
->zc_nvlist_dst_size
= size
;
1302 zc
->zc_nvlist_dst_filled
= B_TRUE
;
1307 get_zfs_sb(const char *dsname
, zfs_sb_t
**zsbp
)
1312 error
= dmu_objset_hold(dsname
, FTAG
, &os
);
1315 if (dmu_objset_type(os
) != DMU_OST_ZFS
) {
1316 dmu_objset_rele(os
, FTAG
);
1317 return (SET_ERROR(EINVAL
));
1320 mutex_enter(&os
->os_user_ptr_lock
);
1321 *zsbp
= dmu_objset_get_user(os
);
1322 if (*zsbp
&& (*zsbp
)->z_sb
) {
1323 atomic_inc(&((*zsbp
)->z_sb
->s_active
));
1325 error
= SET_ERROR(ESRCH
);
1327 mutex_exit(&os
->os_user_ptr_lock
);
1328 dmu_objset_rele(os
, FTAG
);
1333 * Find a zfs_sb_t for a mounted filesystem, or create our own, in which
1334 * case its z_sb will be NULL, and it will be opened as the owner.
1335 * If 'writer' is set, the z_teardown_lock will be held for RW_WRITER,
1336 * which prevents all inode ops from running.
1339 zfs_sb_hold(const char *name
, void *tag
, zfs_sb_t
**zsbp
, boolean_t writer
)
1343 if (get_zfs_sb(name
, zsbp
) != 0)
1344 error
= zfs_sb_create(name
, zsbp
);
1346 rrw_enter(&(*zsbp
)->z_teardown_lock
, (writer
) ? RW_WRITER
:
1348 if ((*zsbp
)->z_unmounted
) {
1350 * XXX we could probably try again, since the unmounting
1351 * thread should be just about to disassociate the
1352 * objset from the zsb.
1354 rrw_exit(&(*zsbp
)->z_teardown_lock
, tag
);
1355 return (SET_ERROR(EBUSY
));
1362 zfs_sb_rele(zfs_sb_t
*zsb
, void *tag
)
1364 rrw_exit(&zsb
->z_teardown_lock
, tag
);
1367 deactivate_super(zsb
->z_sb
);
1369 dmu_objset_disown(zsb
->z_os
, zsb
);
1375 zfs_ioc_pool_create(zfs_cmd_t
*zc
)
1378 nvlist_t
*config
, *props
= NULL
;
1379 nvlist_t
*rootprops
= NULL
;
1380 nvlist_t
*zplprops
= NULL
;
1382 if ((error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1383 zc
->zc_iflags
, &config
)))
1386 if (zc
->zc_nvlist_src_size
!= 0 && (error
=
1387 get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
1388 zc
->zc_iflags
, &props
))) {
1389 nvlist_free(config
);
1394 nvlist_t
*nvl
= NULL
;
1395 uint64_t version
= SPA_VERSION
;
1397 (void) nvlist_lookup_uint64(props
,
1398 zpool_prop_to_name(ZPOOL_PROP_VERSION
), &version
);
1399 if (!SPA_VERSION_IS_SUPPORTED(version
)) {
1400 error
= SET_ERROR(EINVAL
);
1401 goto pool_props_bad
;
1403 (void) nvlist_lookup_nvlist(props
, ZPOOL_ROOTFS_PROPS
, &nvl
);
1405 error
= nvlist_dup(nvl
, &rootprops
, KM_SLEEP
);
1407 nvlist_free(config
);
1411 (void) nvlist_remove_all(props
, ZPOOL_ROOTFS_PROPS
);
1413 VERIFY(nvlist_alloc(&zplprops
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
1414 error
= zfs_fill_zplprops_root(version
, rootprops
,
1417 goto pool_props_bad
;
1420 error
= spa_create(zc
->zc_name
, config
, props
, zplprops
);
1423 * Set the remaining root properties
1425 if (!error
&& (error
= zfs_set_prop_nvlist(zc
->zc_name
,
1426 ZPROP_SRC_LOCAL
, rootprops
, NULL
)) != 0)
1427 (void) spa_destroy(zc
->zc_name
);
1430 nvlist_free(rootprops
);
1431 nvlist_free(zplprops
);
1432 nvlist_free(config
);
1439 zfs_ioc_pool_destroy(zfs_cmd_t
*zc
)
1442 zfs_log_history(zc
);
1443 error
= spa_destroy(zc
->zc_name
);
1445 zvol_remove_minors(zc
->zc_name
);
1450 zfs_ioc_pool_import(zfs_cmd_t
*zc
)
1452 nvlist_t
*config
, *props
= NULL
;
1456 if ((error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1457 zc
->zc_iflags
, &config
)) != 0)
1460 if (zc
->zc_nvlist_src_size
!= 0 && (error
=
1461 get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
1462 zc
->zc_iflags
, &props
))) {
1463 nvlist_free(config
);
1467 if (nvlist_lookup_uint64(config
, ZPOOL_CONFIG_POOL_GUID
, &guid
) != 0 ||
1468 guid
!= zc
->zc_guid
)
1469 error
= SET_ERROR(EINVAL
);
1471 error
= spa_import(zc
->zc_name
, config
, props
, zc
->zc_cookie
);
1473 if (zc
->zc_nvlist_dst
!= 0) {
1476 if ((err
= put_nvlist(zc
, config
)) != 0)
1480 nvlist_free(config
);
1489 zfs_ioc_pool_export(zfs_cmd_t
*zc
)
1492 boolean_t force
= (boolean_t
)zc
->zc_cookie
;
1493 boolean_t hardforce
= (boolean_t
)zc
->zc_guid
;
1495 zfs_log_history(zc
);
1496 error
= spa_export(zc
->zc_name
, NULL
, force
, hardforce
);
1498 zvol_remove_minors(zc
->zc_name
);
1503 zfs_ioc_pool_configs(zfs_cmd_t
*zc
)
1508 if ((configs
= spa_all_configs(&zc
->zc_cookie
)) == NULL
)
1509 return (SET_ERROR(EEXIST
));
1511 error
= put_nvlist(zc
, configs
);
1513 nvlist_free(configs
);
1520 * zc_name name of the pool
1523 * zc_cookie real errno
1524 * zc_nvlist_dst config nvlist
1525 * zc_nvlist_dst_size size of config nvlist
1528 zfs_ioc_pool_stats(zfs_cmd_t
*zc
)
1534 error
= spa_get_stats(zc
->zc_name
, &config
, zc
->zc_value
,
1535 sizeof (zc
->zc_value
));
1537 if (config
!= NULL
) {
1538 ret
= put_nvlist(zc
, config
);
1539 nvlist_free(config
);
1542 * The config may be present even if 'error' is non-zero.
1543 * In this case we return success, and preserve the real errno
1546 zc
->zc_cookie
= error
;
1555 * Try to import the given pool, returning pool stats as appropriate so that
1556 * user land knows which devices are available and overall pool health.
1559 zfs_ioc_pool_tryimport(zfs_cmd_t
*zc
)
1561 nvlist_t
*tryconfig
, *config
;
1564 if ((error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1565 zc
->zc_iflags
, &tryconfig
)) != 0)
1568 config
= spa_tryimport(tryconfig
);
1570 nvlist_free(tryconfig
);
1573 return (SET_ERROR(EINVAL
));
1575 error
= put_nvlist(zc
, config
);
1576 nvlist_free(config
);
1583 * zc_name name of the pool
1584 * zc_cookie scan func (pool_scan_func_t)
1587 zfs_ioc_pool_scan(zfs_cmd_t
*zc
)
1592 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1595 if (zc
->zc_cookie
== POOL_SCAN_NONE
)
1596 error
= spa_scan_stop(spa
);
1598 error
= spa_scan(spa
, zc
->zc_cookie
);
1600 spa_close(spa
, FTAG
);
1606 zfs_ioc_pool_freeze(zfs_cmd_t
*zc
)
1611 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
1614 spa_close(spa
, FTAG
);
1620 zfs_ioc_pool_upgrade(zfs_cmd_t
*zc
)
1625 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1628 if (zc
->zc_cookie
< spa_version(spa
) ||
1629 !SPA_VERSION_IS_SUPPORTED(zc
->zc_cookie
)) {
1630 spa_close(spa
, FTAG
);
1631 return (SET_ERROR(EINVAL
));
1634 spa_upgrade(spa
, zc
->zc_cookie
);
1635 spa_close(spa
, FTAG
);
1641 zfs_ioc_pool_get_history(zfs_cmd_t
*zc
)
1648 if ((size
= zc
->zc_history_len
) == 0)
1649 return (SET_ERROR(EINVAL
));
1651 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1654 if (spa_version(spa
) < SPA_VERSION_ZPOOL_HISTORY
) {
1655 spa_close(spa
, FTAG
);
1656 return (SET_ERROR(ENOTSUP
));
1659 hist_buf
= vmem_alloc(size
, KM_SLEEP
);
1660 if ((error
= spa_history_get(spa
, &zc
->zc_history_offset
,
1661 &zc
->zc_history_len
, hist_buf
)) == 0) {
1662 error
= ddi_copyout(hist_buf
,
1663 (void *)(uintptr_t)zc
->zc_history
,
1664 zc
->zc_history_len
, zc
->zc_iflags
);
1667 spa_close(spa
, FTAG
);
1668 vmem_free(hist_buf
, size
);
1673 zfs_ioc_pool_reguid(zfs_cmd_t
*zc
)
1678 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
1680 error
= spa_change_guid(spa
);
1681 spa_close(spa
, FTAG
);
1687 zfs_ioc_dsobj_to_dsname(zfs_cmd_t
*zc
)
1689 return (dsl_dsobj_to_dsname(zc
->zc_name
, zc
->zc_obj
, zc
->zc_value
));
1694 * zc_name name of filesystem
1695 * zc_obj object to find
1698 * zc_value name of object
1701 zfs_ioc_obj_to_path(zfs_cmd_t
*zc
)
1706 /* XXX reading from objset not owned */
1707 if ((error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
)) != 0)
1709 if (dmu_objset_type(os
) != DMU_OST_ZFS
) {
1710 dmu_objset_rele(os
, FTAG
);
1711 return (SET_ERROR(EINVAL
));
1713 error
= zfs_obj_to_path(os
, zc
->zc_obj
, zc
->zc_value
,
1714 sizeof (zc
->zc_value
));
1715 dmu_objset_rele(os
, FTAG
);
1722 * zc_name name of filesystem
1723 * zc_obj object to find
1726 * zc_stat stats on object
1727 * zc_value path to object
1730 zfs_ioc_obj_to_stats(zfs_cmd_t
*zc
)
1735 /* XXX reading from objset not owned */
1736 if ((error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
)) != 0)
1738 if (dmu_objset_type(os
) != DMU_OST_ZFS
) {
1739 dmu_objset_rele(os
, FTAG
);
1740 return (SET_ERROR(EINVAL
));
1742 error
= zfs_obj_to_stats(os
, zc
->zc_obj
, &zc
->zc_stat
, zc
->zc_value
,
1743 sizeof (zc
->zc_value
));
1744 dmu_objset_rele(os
, FTAG
);
1750 zfs_ioc_vdev_add(zfs_cmd_t
*zc
)
1756 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
1760 error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1761 zc
->zc_iflags
, &config
);
1763 error
= spa_vdev_add(spa
, config
);
1764 nvlist_free(config
);
1766 spa_close(spa
, FTAG
);
1772 * zc_name name of the pool
1773 * zc_nvlist_conf nvlist of devices to remove
1774 * zc_cookie to stop the remove?
1777 zfs_ioc_vdev_remove(zfs_cmd_t
*zc
)
1782 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
1785 error
= spa_vdev_remove(spa
, zc
->zc_guid
, B_FALSE
);
1786 spa_close(spa
, FTAG
);
1791 zfs_ioc_vdev_set_state(zfs_cmd_t
*zc
)
1795 vdev_state_t newstate
= VDEV_STATE_UNKNOWN
;
1797 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1799 switch (zc
->zc_cookie
) {
1800 case VDEV_STATE_ONLINE
:
1801 error
= vdev_online(spa
, zc
->zc_guid
, zc
->zc_obj
, &newstate
);
1804 case VDEV_STATE_OFFLINE
:
1805 error
= vdev_offline(spa
, zc
->zc_guid
, zc
->zc_obj
);
1808 case VDEV_STATE_FAULTED
:
1809 if (zc
->zc_obj
!= VDEV_AUX_ERR_EXCEEDED
&&
1810 zc
->zc_obj
!= VDEV_AUX_EXTERNAL
)
1811 zc
->zc_obj
= VDEV_AUX_ERR_EXCEEDED
;
1813 error
= vdev_fault(spa
, zc
->zc_guid
, zc
->zc_obj
);
1816 case VDEV_STATE_DEGRADED
:
1817 if (zc
->zc_obj
!= VDEV_AUX_ERR_EXCEEDED
&&
1818 zc
->zc_obj
!= VDEV_AUX_EXTERNAL
)
1819 zc
->zc_obj
= VDEV_AUX_ERR_EXCEEDED
;
1821 error
= vdev_degrade(spa
, zc
->zc_guid
, zc
->zc_obj
);
1825 error
= SET_ERROR(EINVAL
);
1827 zc
->zc_cookie
= newstate
;
1828 spa_close(spa
, FTAG
);
1833 zfs_ioc_vdev_attach(zfs_cmd_t
*zc
)
1836 int replacing
= zc
->zc_cookie
;
1840 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1843 if ((error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1844 zc
->zc_iflags
, &config
)) == 0) {
1845 error
= spa_vdev_attach(spa
, zc
->zc_guid
, config
, replacing
);
1846 nvlist_free(config
);
1849 spa_close(spa
, FTAG
);
1854 zfs_ioc_vdev_detach(zfs_cmd_t
*zc
)
1859 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1862 error
= spa_vdev_detach(spa
, zc
->zc_guid
, 0, B_FALSE
);
1864 spa_close(spa
, FTAG
);
1869 zfs_ioc_vdev_split(zfs_cmd_t
*zc
)
1872 nvlist_t
*config
, *props
= NULL
;
1874 boolean_t exp
= !!(zc
->zc_cookie
& ZPOOL_EXPORT_AFTER_SPLIT
);
1876 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1879 if ((error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1880 zc
->zc_iflags
, &config
))) {
1881 spa_close(spa
, FTAG
);
1885 if (zc
->zc_nvlist_src_size
!= 0 && (error
=
1886 get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
1887 zc
->zc_iflags
, &props
))) {
1888 spa_close(spa
, FTAG
);
1889 nvlist_free(config
);
1893 error
= spa_vdev_split_mirror(spa
, zc
->zc_string
, config
, props
, exp
);
1895 spa_close(spa
, FTAG
);
1897 nvlist_free(config
);
1904 zfs_ioc_vdev_setpath(zfs_cmd_t
*zc
)
1907 char *path
= zc
->zc_value
;
1908 uint64_t guid
= zc
->zc_guid
;
1911 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
1915 error
= spa_vdev_setpath(spa
, guid
, path
);
1916 spa_close(spa
, FTAG
);
1921 zfs_ioc_vdev_setfru(zfs_cmd_t
*zc
)
1924 char *fru
= zc
->zc_value
;
1925 uint64_t guid
= zc
->zc_guid
;
1928 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
1932 error
= spa_vdev_setfru(spa
, guid
, fru
);
1933 spa_close(spa
, FTAG
);
1938 zfs_ioc_objset_stats_impl(zfs_cmd_t
*zc
, objset_t
*os
)
1943 dmu_objset_fast_stat(os
, &zc
->zc_objset_stats
);
1945 if (zc
->zc_nvlist_dst
!= 0 &&
1946 (error
= dsl_prop_get_all(os
, &nv
)) == 0) {
1947 dmu_objset_stats(os
, nv
);
1949 * NB: zvol_get_stats() will read the objset contents,
1950 * which we aren't supposed to do with a
1951 * DS_MODE_USER hold, because it could be
1952 * inconsistent. So this is a bit of a workaround...
1953 * XXX reading with out owning
1955 if (!zc
->zc_objset_stats
.dds_inconsistent
&&
1956 dmu_objset_type(os
) == DMU_OST_ZVOL
) {
1957 error
= zvol_get_stats(os
, nv
);
1963 error
= put_nvlist(zc
, nv
);
1972 * zc_name name of filesystem
1973 * zc_nvlist_dst_size size of buffer for property nvlist
1976 * zc_objset_stats stats
1977 * zc_nvlist_dst property nvlist
1978 * zc_nvlist_dst_size size of property nvlist
1981 zfs_ioc_objset_stats(zfs_cmd_t
*zc
)
1986 error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
);
1988 error
= zfs_ioc_objset_stats_impl(zc
, os
);
1989 dmu_objset_rele(os
, FTAG
);
1997 * zc_name name of filesystem
1998 * zc_nvlist_dst_size size of buffer for property nvlist
2001 * zc_nvlist_dst received property nvlist
2002 * zc_nvlist_dst_size size of received property nvlist
2004 * Gets received properties (distinct from local properties on or after
2005 * SPA_VERSION_RECVD_PROPS) for callers who want to differentiate received from
2006 * local property values.
2009 zfs_ioc_objset_recvd_props(zfs_cmd_t
*zc
)
2015 * Without this check, we would return local property values if the
2016 * caller has not already received properties on or after
2017 * SPA_VERSION_RECVD_PROPS.
2019 if (!dsl_prop_get_hasrecvd(zc
->zc_name
))
2020 return (SET_ERROR(ENOTSUP
));
2022 if (zc
->zc_nvlist_dst
!= 0 &&
2023 (error
= dsl_prop_get_received(zc
->zc_name
, &nv
)) == 0) {
2024 error
= put_nvlist(zc
, nv
);
2032 nvl_add_zplprop(objset_t
*os
, nvlist_t
*props
, zfs_prop_t prop
)
2038 * zfs_get_zplprop() will either find a value or give us
2039 * the default value (if there is one).
2041 if ((error
= zfs_get_zplprop(os
, prop
, &value
)) != 0)
2043 VERIFY(nvlist_add_uint64(props
, zfs_prop_to_name(prop
), value
) == 0);
2049 * zc_name name of filesystem
2050 * zc_nvlist_dst_size size of buffer for zpl property nvlist
2053 * zc_nvlist_dst zpl property nvlist
2054 * zc_nvlist_dst_size size of zpl property nvlist
2057 zfs_ioc_objset_zplprops(zfs_cmd_t
*zc
)
2062 /* XXX reading without owning */
2063 if ((err
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
)))
2066 dmu_objset_fast_stat(os
, &zc
->zc_objset_stats
);
2069 * NB: nvl_add_zplprop() will read the objset contents,
2070 * which we aren't supposed to do with a DS_MODE_USER
2071 * hold, because it could be inconsistent.
2073 if (zc
->zc_nvlist_dst
!= 0 &&
2074 !zc
->zc_objset_stats
.dds_inconsistent
&&
2075 dmu_objset_type(os
) == DMU_OST_ZFS
) {
2078 VERIFY(nvlist_alloc(&nv
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
2079 if ((err
= nvl_add_zplprop(os
, nv
, ZFS_PROP_VERSION
)) == 0 &&
2080 (err
= nvl_add_zplprop(os
, nv
, ZFS_PROP_NORMALIZE
)) == 0 &&
2081 (err
= nvl_add_zplprop(os
, nv
, ZFS_PROP_UTF8ONLY
)) == 0 &&
2082 (err
= nvl_add_zplprop(os
, nv
, ZFS_PROP_CASE
)) == 0)
2083 err
= put_nvlist(zc
, nv
);
2086 err
= SET_ERROR(ENOENT
);
2088 dmu_objset_rele(os
, FTAG
);
2093 dataset_name_hidden(const char *name
)
2096 * Skip over datasets that are not visible in this zone,
2097 * internal datasets (which have a $ in their name), and
2098 * temporary datasets (which have a % in their name).
2100 if (strchr(name
, '$') != NULL
)
2102 if (strchr(name
, '%') != NULL
)
2104 if (!INGLOBALZONE(curproc
) && !zone_dataset_visible(name
, NULL
))
2111 * zc_name name of filesystem
2112 * zc_cookie zap cursor
2113 * zc_nvlist_dst_size size of buffer for property nvlist
2116 * zc_name name of next filesystem
2117 * zc_cookie zap cursor
2118 * zc_objset_stats stats
2119 * zc_nvlist_dst property nvlist
2120 * zc_nvlist_dst_size size of property nvlist
2123 zfs_ioc_dataset_list_next(zfs_cmd_t
*zc
)
2128 size_t orig_len
= strlen(zc
->zc_name
);
2131 if ((error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
))) {
2132 if (error
== ENOENT
)
2133 error
= SET_ERROR(ESRCH
);
2137 p
= strrchr(zc
->zc_name
, '/');
2138 if (p
== NULL
|| p
[1] != '\0')
2139 (void) strlcat(zc
->zc_name
, "/", sizeof (zc
->zc_name
));
2140 p
= zc
->zc_name
+ strlen(zc
->zc_name
);
2143 error
= dmu_dir_list_next(os
,
2144 sizeof (zc
->zc_name
) - (p
- zc
->zc_name
), p
,
2145 NULL
, &zc
->zc_cookie
);
2146 if (error
== ENOENT
)
2147 error
= SET_ERROR(ESRCH
);
2148 } while (error
== 0 && dataset_name_hidden(zc
->zc_name
));
2149 dmu_objset_rele(os
, FTAG
);
2152 * If it's an internal dataset (ie. with a '$' in its name),
2153 * don't try to get stats for it, otherwise we'll return ENOENT.
2155 if (error
== 0 && strchr(zc
->zc_name
, '$') == NULL
) {
2156 error
= zfs_ioc_objset_stats(zc
); /* fill in the stats */
2157 if (error
== ENOENT
) {
2158 /* We lost a race with destroy, get the next one. */
2159 zc
->zc_name
[orig_len
] = '\0';
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 snapshot
2174 * zc_objset_stats stats
2175 * zc_nvlist_dst property nvlist
2176 * zc_nvlist_dst_size size of property nvlist
2179 zfs_ioc_snapshot_list_next(zfs_cmd_t
*zc
)
2184 error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
);
2186 return (error
== ENOENT
? ESRCH
: error
);
2190 * A dataset name of maximum length cannot have any snapshots,
2191 * so exit immediately.
2193 if (strlcat(zc
->zc_name
, "@", sizeof (zc
->zc_name
)) >= MAXNAMELEN
) {
2194 dmu_objset_rele(os
, FTAG
);
2195 return (SET_ERROR(ESRCH
));
2198 error
= dmu_snapshot_list_next(os
,
2199 sizeof (zc
->zc_name
) - strlen(zc
->zc_name
),
2200 zc
->zc_name
+ strlen(zc
->zc_name
), &zc
->zc_obj
, &zc
->zc_cookie
,
2203 if (error
== 0 && !zc
->zc_simple
) {
2205 dsl_pool_t
*dp
= os
->os_dsl_dataset
->ds_dir
->dd_pool
;
2207 error
= dsl_dataset_hold_obj(dp
, zc
->zc_obj
, FTAG
, &ds
);
2211 error
= dmu_objset_from_ds(ds
, &ossnap
);
2213 error
= zfs_ioc_objset_stats_impl(zc
, ossnap
);
2214 dsl_dataset_rele(ds
, FTAG
);
2216 } else if (error
== ENOENT
) {
2217 error
= SET_ERROR(ESRCH
);
2220 dmu_objset_rele(os
, FTAG
);
2221 /* if we failed, undo the @ that we tacked on to zc_name */
2223 *strchr(zc
->zc_name
, '@') = '\0';
2228 zfs_prop_set_userquota(const char *dsname
, nvpair_t
*pair
)
2230 const char *propname
= nvpair_name(pair
);
2232 unsigned int vallen
;
2235 zfs_userquota_prop_t type
;
2241 if (nvpair_type(pair
) == DATA_TYPE_NVLIST
) {
2243 VERIFY(nvpair_value_nvlist(pair
, &attrs
) == 0);
2244 if (nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
2246 return (SET_ERROR(EINVAL
));
2250 * A correctly constructed propname is encoded as
2251 * userquota@<rid>-<domain>.
2253 if ((dash
= strchr(propname
, '-')) == NULL
||
2254 nvpair_value_uint64_array(pair
, &valary
, &vallen
) != 0 ||
2256 return (SET_ERROR(EINVAL
));
2263 err
= zfs_sb_hold(dsname
, FTAG
, &zsb
, B_FALSE
);
2265 err
= zfs_set_userquota(zsb
, type
, domain
, rid
, quota
);
2266 zfs_sb_rele(zsb
, FTAG
);
2273 * If the named property is one that has a special function to set its value,
2274 * return 0 on success and a positive error code on failure; otherwise if it is
2275 * not one of the special properties handled by this function, return -1.
2277 * XXX: It would be better for callers of the property interface if we handled
2278 * these special cases in dsl_prop.c (in the dsl layer).
2281 zfs_prop_set_special(const char *dsname
, zprop_source_t source
,
2284 const char *propname
= nvpair_name(pair
);
2285 zfs_prop_t prop
= zfs_name_to_prop(propname
);
2289 if (prop
== ZPROP_INVAL
) {
2290 if (zfs_prop_userquota(propname
))
2291 return (zfs_prop_set_userquota(dsname
, pair
));
2295 if (nvpair_type(pair
) == DATA_TYPE_NVLIST
) {
2297 VERIFY(nvpair_value_nvlist(pair
, &attrs
) == 0);
2298 VERIFY(nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
2302 if (zfs_prop_get_type(prop
) == PROP_TYPE_STRING
)
2305 VERIFY(0 == nvpair_value_uint64(pair
, &intval
));
2308 case ZFS_PROP_QUOTA
:
2309 err
= dsl_dir_set_quota(dsname
, source
, intval
);
2311 case ZFS_PROP_REFQUOTA
:
2312 err
= dsl_dataset_set_refquota(dsname
, source
, intval
);
2314 case ZFS_PROP_RESERVATION
:
2315 err
= dsl_dir_set_reservation(dsname
, source
, intval
);
2317 case ZFS_PROP_REFRESERVATION
:
2318 err
= dsl_dataset_set_refreservation(dsname
, source
, intval
);
2320 case ZFS_PROP_VOLSIZE
:
2321 err
= zvol_set_volsize(dsname
, intval
);
2323 case ZFS_PROP_SNAPDEV
:
2324 err
= zvol_set_snapdev(dsname
, intval
);
2326 case ZFS_PROP_VERSION
:
2330 if ((err
= zfs_sb_hold(dsname
, FTAG
, &zsb
, B_TRUE
)) != 0)
2333 err
= zfs_set_version(zsb
, intval
);
2334 zfs_sb_rele(zsb
, FTAG
);
2336 if (err
== 0 && intval
>= ZPL_VERSION_USERSPACE
) {
2339 zc
= kmem_zalloc(sizeof (zfs_cmd_t
),
2340 KM_SLEEP
| KM_NODEBUG
);
2341 (void) strcpy(zc
->zc_name
, dsname
);
2342 (void) zfs_ioc_userspace_upgrade(zc
);
2343 kmem_free(zc
, sizeof (zfs_cmd_t
));
2347 case ZFS_PROP_COMPRESSION
:
2349 if (intval
== ZIO_COMPRESS_LZ4
) {
2350 zfeature_info_t
*feature
=
2351 &spa_feature_table
[SPA_FEATURE_LZ4_COMPRESS
];
2354 if ((err
= spa_open(dsname
, &spa
, FTAG
)) != 0)
2358 * Setting the LZ4 compression algorithm activates
2361 if (!spa_feature_is_active(spa
, feature
)) {
2362 if ((err
= zfs_prop_activate_feature(spa
,
2364 spa_close(spa
, FTAG
);
2369 spa_close(spa
, FTAG
);
2372 * We still want the default set action to be performed in the
2373 * caller, we only performed zfeature settings here.
2387 * This function is best effort. If it fails to set any of the given properties,
2388 * it continues to set as many as it can and returns the last error
2389 * encountered. If the caller provides a non-NULL errlist, it will be filled in
2390 * with the list of names of all the properties that failed along with the
2391 * corresponding error numbers.
2393 * If every property is set successfully, zero is returned and errlist is not
2397 zfs_set_prop_nvlist(const char *dsname
, zprop_source_t source
, nvlist_t
*nvl
,
2406 nvlist_t
*genericnvl
= fnvlist_alloc();
2407 nvlist_t
*retrynvl
= fnvlist_alloc();
2410 while ((pair
= nvlist_next_nvpair(nvl
, pair
)) != NULL
) {
2411 const char *propname
= nvpair_name(pair
);
2412 zfs_prop_t prop
= zfs_name_to_prop(propname
);
2415 /* decode the property value */
2417 if (nvpair_type(pair
) == DATA_TYPE_NVLIST
) {
2419 attrs
= fnvpair_value_nvlist(pair
);
2420 if (nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
2422 err
= SET_ERROR(EINVAL
);
2425 /* Validate value type */
2426 if (err
== 0 && prop
== ZPROP_INVAL
) {
2427 if (zfs_prop_user(propname
)) {
2428 if (nvpair_type(propval
) != DATA_TYPE_STRING
)
2429 err
= SET_ERROR(EINVAL
);
2430 } else if (zfs_prop_userquota(propname
)) {
2431 if (nvpair_type(propval
) !=
2432 DATA_TYPE_UINT64_ARRAY
)
2433 err
= SET_ERROR(EINVAL
);
2435 err
= SET_ERROR(EINVAL
);
2437 } else if (err
== 0) {
2438 if (nvpair_type(propval
) == DATA_TYPE_STRING
) {
2439 if (zfs_prop_get_type(prop
) != PROP_TYPE_STRING
)
2440 err
= SET_ERROR(EINVAL
);
2441 } else if (nvpair_type(propval
) == DATA_TYPE_UINT64
) {
2444 intval
= fnvpair_value_uint64(propval
);
2446 switch (zfs_prop_get_type(prop
)) {
2447 case PROP_TYPE_NUMBER
:
2449 case PROP_TYPE_STRING
:
2450 err
= SET_ERROR(EINVAL
);
2452 case PROP_TYPE_INDEX
:
2453 if (zfs_prop_index_to_string(prop
,
2454 intval
, &unused
) != 0)
2455 err
= SET_ERROR(EINVAL
);
2459 "unknown property type");
2462 err
= SET_ERROR(EINVAL
);
2466 /* Validate permissions */
2468 err
= zfs_check_settable(dsname
, pair
, CRED());
2471 err
= zfs_prop_set_special(dsname
, source
, pair
);
2474 * For better performance we build up a list of
2475 * properties to set in a single transaction.
2477 err
= nvlist_add_nvpair(genericnvl
, pair
);
2478 } else if (err
!= 0 && nvl
!= retrynvl
) {
2480 * This may be a spurious error caused by
2481 * receiving quota and reservation out of order.
2482 * Try again in a second pass.
2484 err
= nvlist_add_nvpair(retrynvl
, pair
);
2489 if (errlist
!= NULL
)
2490 fnvlist_add_int32(errlist
, propname
, err
);
2495 if (nvl
!= retrynvl
&& !nvlist_empty(retrynvl
)) {
2500 if (!nvlist_empty(genericnvl
) &&
2501 dsl_props_set(dsname
, source
, genericnvl
) != 0) {
2503 * If this fails, we still want to set as many properties as we
2504 * can, so try setting them individually.
2507 while ((pair
= nvlist_next_nvpair(genericnvl
, pair
)) != NULL
) {
2508 const char *propname
= nvpair_name(pair
);
2512 if (nvpair_type(pair
) == DATA_TYPE_NVLIST
) {
2514 attrs
= fnvpair_value_nvlist(pair
);
2515 propval
= fnvlist_lookup_nvpair(attrs
,
2519 if (nvpair_type(propval
) == DATA_TYPE_STRING
) {
2520 strval
= fnvpair_value_string(propval
);
2521 err
= dsl_prop_set_string(dsname
, propname
,
2524 intval
= fnvpair_value_uint64(propval
);
2525 err
= dsl_prop_set_int(dsname
, propname
, source
,
2530 if (errlist
!= NULL
) {
2531 fnvlist_add_int32(errlist
, propname
,
2538 nvlist_free(genericnvl
);
2539 nvlist_free(retrynvl
);
2545 * Check that all the properties are valid user properties.
2548 zfs_check_userprops(const char *fsname
, nvlist_t
*nvl
)
2550 nvpair_t
*pair
= NULL
;
2553 while ((pair
= nvlist_next_nvpair(nvl
, pair
)) != NULL
) {
2554 const char *propname
= nvpair_name(pair
);
2557 if (!zfs_prop_user(propname
) ||
2558 nvpair_type(pair
) != DATA_TYPE_STRING
)
2559 return (SET_ERROR(EINVAL
));
2561 if ((error
= zfs_secpolicy_write_perms(fsname
,
2562 ZFS_DELEG_PERM_USERPROP
, CRED())))
2565 if (strlen(propname
) >= ZAP_MAXNAMELEN
)
2566 return (SET_ERROR(ENAMETOOLONG
));
2568 VERIFY(nvpair_value_string(pair
, &valstr
) == 0);
2569 if (strlen(valstr
) >= ZAP_MAXVALUELEN
)
2570 return (SET_ERROR(E2BIG
));
2576 props_skip(nvlist_t
*props
, nvlist_t
*skipped
, nvlist_t
**newprops
)
2580 VERIFY(nvlist_alloc(newprops
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
2583 while ((pair
= nvlist_next_nvpair(props
, pair
)) != NULL
) {
2584 if (nvlist_exists(skipped
, nvpair_name(pair
)))
2587 VERIFY(nvlist_add_nvpair(*newprops
, pair
) == 0);
2592 clear_received_props(const char *dsname
, nvlist_t
*props
,
2596 nvlist_t
*cleared_props
= NULL
;
2597 props_skip(props
, skipped
, &cleared_props
);
2598 if (!nvlist_empty(cleared_props
)) {
2600 * Acts on local properties until the dataset has received
2601 * properties at least once on or after SPA_VERSION_RECVD_PROPS.
2603 zprop_source_t flags
= (ZPROP_SRC_NONE
|
2604 (dsl_prop_get_hasrecvd(dsname
) ? ZPROP_SRC_RECEIVED
: 0));
2605 err
= zfs_set_prop_nvlist(dsname
, flags
, cleared_props
, NULL
);
2607 nvlist_free(cleared_props
);
2613 * zc_name name of filesystem
2614 * zc_value name of property to set
2615 * zc_nvlist_src{_size} nvlist of properties to apply
2616 * zc_cookie received properties flag
2619 * zc_nvlist_dst{_size} error for each unapplied received property
2622 zfs_ioc_set_prop(zfs_cmd_t
*zc
)
2625 boolean_t received
= zc
->zc_cookie
;
2626 zprop_source_t source
= (received
? ZPROP_SRC_RECEIVED
:
2631 if ((error
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
2632 zc
->zc_iflags
, &nvl
)) != 0)
2636 nvlist_t
*origprops
;
2638 if (dsl_prop_get_received(zc
->zc_name
, &origprops
) == 0) {
2639 (void) clear_received_props(zc
->zc_name
,
2641 nvlist_free(origprops
);
2644 error
= dsl_prop_set_hasrecvd(zc
->zc_name
);
2647 errors
= fnvlist_alloc();
2649 error
= zfs_set_prop_nvlist(zc
->zc_name
, source
, nvl
, errors
);
2651 if (zc
->zc_nvlist_dst
!= 0 && errors
!= NULL
) {
2652 (void) put_nvlist(zc
, errors
);
2655 nvlist_free(errors
);
2662 * zc_name name of filesystem
2663 * zc_value name of property to inherit
2664 * zc_cookie revert to received value if TRUE
2669 zfs_ioc_inherit_prop(zfs_cmd_t
*zc
)
2671 const char *propname
= zc
->zc_value
;
2672 zfs_prop_t prop
= zfs_name_to_prop(propname
);
2673 boolean_t received
= zc
->zc_cookie
;
2674 zprop_source_t source
= (received
2675 ? ZPROP_SRC_NONE
/* revert to received value, if any */
2676 : ZPROP_SRC_INHERITED
); /* explicitly inherit */
2685 * zfs_prop_set_special() expects properties in the form of an
2686 * nvpair with type info.
2688 if (prop
== ZPROP_INVAL
) {
2689 if (!zfs_prop_user(propname
))
2690 return (SET_ERROR(EINVAL
));
2692 type
= PROP_TYPE_STRING
;
2693 } else if (prop
== ZFS_PROP_VOLSIZE
||
2694 prop
== ZFS_PROP_VERSION
) {
2695 return (SET_ERROR(EINVAL
));
2697 type
= zfs_prop_get_type(prop
);
2700 VERIFY(nvlist_alloc(&dummy
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
2703 case PROP_TYPE_STRING
:
2704 VERIFY(0 == nvlist_add_string(dummy
, propname
, ""));
2706 case PROP_TYPE_NUMBER
:
2707 case PROP_TYPE_INDEX
:
2708 VERIFY(0 == nvlist_add_uint64(dummy
, propname
, 0));
2712 return (SET_ERROR(EINVAL
));
2715 pair
= nvlist_next_nvpair(dummy
, NULL
);
2716 err
= zfs_prop_set_special(zc
->zc_name
, source
, pair
);
2719 return (err
); /* special property already handled */
2722 * Only check this in the non-received case. We want to allow
2723 * 'inherit -S' to revert non-inheritable properties like quota
2724 * and reservation to the received or default values even though
2725 * they are not considered inheritable.
2727 if (prop
!= ZPROP_INVAL
&& !zfs_prop_inheritable(prop
))
2728 return (SET_ERROR(EINVAL
));
2731 /* property name has been validated by zfs_secpolicy_inherit_prop() */
2732 return (dsl_prop_inherit(zc
->zc_name
, zc
->zc_value
, source
));
2736 zfs_ioc_pool_set_props(zfs_cmd_t
*zc
)
2743 if ((error
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
2744 zc
->zc_iflags
, &props
)))
2748 * If the only property is the configfile, then just do a spa_lookup()
2749 * to handle the faulted case.
2751 pair
= nvlist_next_nvpair(props
, NULL
);
2752 if (pair
!= NULL
&& strcmp(nvpair_name(pair
),
2753 zpool_prop_to_name(ZPOOL_PROP_CACHEFILE
)) == 0 &&
2754 nvlist_next_nvpair(props
, pair
) == NULL
) {
2755 mutex_enter(&spa_namespace_lock
);
2756 if ((spa
= spa_lookup(zc
->zc_name
)) != NULL
) {
2757 spa_configfile_set(spa
, props
, B_FALSE
);
2758 spa_config_sync(spa
, B_FALSE
, B_TRUE
);
2760 mutex_exit(&spa_namespace_lock
);
2767 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0) {
2772 error
= spa_prop_set(spa
, props
);
2775 spa_close(spa
, FTAG
);
2781 zfs_ioc_pool_get_props(zfs_cmd_t
*zc
)
2785 nvlist_t
*nvp
= NULL
;
2787 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0) {
2789 * If the pool is faulted, there may be properties we can still
2790 * get (such as altroot and cachefile), so attempt to get them
2793 mutex_enter(&spa_namespace_lock
);
2794 if ((spa
= spa_lookup(zc
->zc_name
)) != NULL
)
2795 error
= spa_prop_get(spa
, &nvp
);
2796 mutex_exit(&spa_namespace_lock
);
2798 error
= spa_prop_get(spa
, &nvp
);
2799 spa_close(spa
, FTAG
);
2802 if (error
== 0 && zc
->zc_nvlist_dst
!= 0)
2803 error
= put_nvlist(zc
, nvp
);
2805 error
= SET_ERROR(EFAULT
);
2813 * zc_name name of filesystem
2814 * zc_nvlist_src{_size} nvlist of delegated permissions
2815 * zc_perm_action allow/unallow flag
2820 zfs_ioc_set_fsacl(zfs_cmd_t
*zc
)
2823 nvlist_t
*fsaclnv
= NULL
;
2825 if ((error
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
2826 zc
->zc_iflags
, &fsaclnv
)) != 0)
2830 * Verify nvlist is constructed correctly
2832 if ((error
= zfs_deleg_verify_nvlist(fsaclnv
)) != 0) {
2833 nvlist_free(fsaclnv
);
2834 return (SET_ERROR(EINVAL
));
2838 * If we don't have PRIV_SYS_MOUNT, then validate
2839 * that user is allowed to hand out each permission in
2843 error
= secpolicy_zfs(CRED());
2845 if (zc
->zc_perm_action
== B_FALSE
) {
2846 error
= dsl_deleg_can_allow(zc
->zc_name
,
2849 error
= dsl_deleg_can_unallow(zc
->zc_name
,
2855 error
= dsl_deleg_set(zc
->zc_name
, fsaclnv
, zc
->zc_perm_action
);
2857 nvlist_free(fsaclnv
);
2863 * zc_name name of filesystem
2866 * zc_nvlist_src{_size} nvlist of delegated permissions
2869 zfs_ioc_get_fsacl(zfs_cmd_t
*zc
)
2874 if ((error
= dsl_deleg_get(zc
->zc_name
, &nvp
)) == 0) {
2875 error
= put_nvlist(zc
, nvp
);
2884 zfs_create_cb(objset_t
*os
, void *arg
, cred_t
*cr
, dmu_tx_t
*tx
)
2886 zfs_creat_t
*zct
= arg
;
2888 zfs_create_fs(os
, cr
, zct
->zct_zplprops
, tx
);
2891 #define ZFS_PROP_UNDEFINED ((uint64_t)-1)
2895 * os parent objset pointer (NULL if root fs)
2896 * fuids_ok fuids allowed in this version of the spa?
2897 * sa_ok SAs allowed in this version of the spa?
2898 * createprops list of properties requested by creator
2901 * zplprops values for the zplprops we attach to the master node object
2902 * is_ci true if requested file system will be purely case-insensitive
2904 * Determine the settings for utf8only, normalization and
2905 * casesensitivity. Specific values may have been requested by the
2906 * creator and/or we can inherit values from the parent dataset. If
2907 * the file system is of too early a vintage, a creator can not
2908 * request settings for these properties, even if the requested
2909 * setting is the default value. We don't actually want to create dsl
2910 * properties for these, so remove them from the source nvlist after
2914 zfs_fill_zplprops_impl(objset_t
*os
, uint64_t zplver
,
2915 boolean_t fuids_ok
, boolean_t sa_ok
, nvlist_t
*createprops
,
2916 nvlist_t
*zplprops
, boolean_t
*is_ci
)
2918 uint64_t sense
= ZFS_PROP_UNDEFINED
;
2919 uint64_t norm
= ZFS_PROP_UNDEFINED
;
2920 uint64_t u8
= ZFS_PROP_UNDEFINED
;
2923 ASSERT(zplprops
!= NULL
);
2926 * Pull out creator prop choices, if any.
2929 (void) nvlist_lookup_uint64(createprops
,
2930 zfs_prop_to_name(ZFS_PROP_VERSION
), &zplver
);
2931 (void) nvlist_lookup_uint64(createprops
,
2932 zfs_prop_to_name(ZFS_PROP_NORMALIZE
), &norm
);
2933 (void) nvlist_remove_all(createprops
,
2934 zfs_prop_to_name(ZFS_PROP_NORMALIZE
));
2935 (void) nvlist_lookup_uint64(createprops
,
2936 zfs_prop_to_name(ZFS_PROP_UTF8ONLY
), &u8
);
2937 (void) nvlist_remove_all(createprops
,
2938 zfs_prop_to_name(ZFS_PROP_UTF8ONLY
));
2939 (void) nvlist_lookup_uint64(createprops
,
2940 zfs_prop_to_name(ZFS_PROP_CASE
), &sense
);
2941 (void) nvlist_remove_all(createprops
,
2942 zfs_prop_to_name(ZFS_PROP_CASE
));
2946 * If the zpl version requested is whacky or the file system
2947 * or pool is version is too "young" to support normalization
2948 * and the creator tried to set a value for one of the props,
2951 if ((zplver
< ZPL_VERSION_INITIAL
|| zplver
> ZPL_VERSION
) ||
2952 (zplver
>= ZPL_VERSION_FUID
&& !fuids_ok
) ||
2953 (zplver
>= ZPL_VERSION_SA
&& !sa_ok
) ||
2954 (zplver
< ZPL_VERSION_NORMALIZATION
&&
2955 (norm
!= ZFS_PROP_UNDEFINED
|| u8
!= ZFS_PROP_UNDEFINED
||
2956 sense
!= ZFS_PROP_UNDEFINED
)))
2957 return (SET_ERROR(ENOTSUP
));
2960 * Put the version in the zplprops
2962 VERIFY(nvlist_add_uint64(zplprops
,
2963 zfs_prop_to_name(ZFS_PROP_VERSION
), zplver
) == 0);
2965 if (norm
== ZFS_PROP_UNDEFINED
&&
2966 (error
= zfs_get_zplprop(os
, ZFS_PROP_NORMALIZE
, &norm
)) != 0)
2968 VERIFY(nvlist_add_uint64(zplprops
,
2969 zfs_prop_to_name(ZFS_PROP_NORMALIZE
), norm
) == 0);
2972 * If we're normalizing, names must always be valid UTF-8 strings.
2976 if (u8
== ZFS_PROP_UNDEFINED
&&
2977 (error
= zfs_get_zplprop(os
, ZFS_PROP_UTF8ONLY
, &u8
)) != 0)
2979 VERIFY(nvlist_add_uint64(zplprops
,
2980 zfs_prop_to_name(ZFS_PROP_UTF8ONLY
), u8
) == 0);
2982 if (sense
== ZFS_PROP_UNDEFINED
&&
2983 (error
= zfs_get_zplprop(os
, ZFS_PROP_CASE
, &sense
)) != 0)
2985 VERIFY(nvlist_add_uint64(zplprops
,
2986 zfs_prop_to_name(ZFS_PROP_CASE
), sense
) == 0);
2989 *is_ci
= (sense
== ZFS_CASE_INSENSITIVE
);
2995 zfs_fill_zplprops(const char *dataset
, nvlist_t
*createprops
,
2996 nvlist_t
*zplprops
, boolean_t
*is_ci
)
2998 boolean_t fuids_ok
, sa_ok
;
2999 uint64_t zplver
= ZPL_VERSION
;
3000 objset_t
*os
= NULL
;
3001 char parentname
[MAXNAMELEN
];
3007 (void) strlcpy(parentname
, dataset
, sizeof (parentname
));
3008 cp
= strrchr(parentname
, '/');
3012 if ((error
= spa_open(dataset
, &spa
, FTAG
)) != 0)
3015 spa_vers
= spa_version(spa
);
3016 spa_close(spa
, FTAG
);
3018 zplver
= zfs_zpl_version_map(spa_vers
);
3019 fuids_ok
= (zplver
>= ZPL_VERSION_FUID
);
3020 sa_ok
= (zplver
>= ZPL_VERSION_SA
);
3023 * Open parent object set so we can inherit zplprop values.
3025 if ((error
= dmu_objset_hold(parentname
, FTAG
, &os
)) != 0)
3028 error
= zfs_fill_zplprops_impl(os
, zplver
, fuids_ok
, sa_ok
, createprops
,
3030 dmu_objset_rele(os
, FTAG
);
3035 zfs_fill_zplprops_root(uint64_t spa_vers
, nvlist_t
*createprops
,
3036 nvlist_t
*zplprops
, boolean_t
*is_ci
)
3040 uint64_t zplver
= ZPL_VERSION
;
3043 zplver
= zfs_zpl_version_map(spa_vers
);
3044 fuids_ok
= (zplver
>= ZPL_VERSION_FUID
);
3045 sa_ok
= (zplver
>= ZPL_VERSION_SA
);
3047 error
= zfs_fill_zplprops_impl(NULL
, zplver
, fuids_ok
, sa_ok
,
3048 createprops
, zplprops
, is_ci
);
3054 * "type" -> dmu_objset_type_t (int32)
3055 * (optional) "props" -> { prop -> value }
3058 * outnvl: propname -> error code (int32)
3061 zfs_ioc_create(const char *fsname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
3064 zfs_creat_t zct
= { 0 };
3065 nvlist_t
*nvprops
= NULL
;
3066 void (*cbfunc
)(objset_t
*os
, void *arg
, cred_t
*cr
, dmu_tx_t
*tx
);
3068 dmu_objset_type_t type
;
3069 boolean_t is_insensitive
= B_FALSE
;
3071 if (nvlist_lookup_int32(innvl
, "type", &type32
) != 0)
3072 return (SET_ERROR(EINVAL
));
3074 (void) nvlist_lookup_nvlist(innvl
, "props", &nvprops
);
3078 cbfunc
= zfs_create_cb
;
3082 cbfunc
= zvol_create_cb
;
3089 if (strchr(fsname
, '@') ||
3090 strchr(fsname
, '%'))
3091 return (SET_ERROR(EINVAL
));
3093 zct
.zct_props
= nvprops
;
3096 return (SET_ERROR(EINVAL
));
3098 if (type
== DMU_OST_ZVOL
) {
3099 uint64_t volsize
, volblocksize
;
3101 if (nvprops
== NULL
)
3102 return (SET_ERROR(EINVAL
));
3103 if (nvlist_lookup_uint64(nvprops
,
3104 zfs_prop_to_name(ZFS_PROP_VOLSIZE
), &volsize
) != 0)
3105 return (SET_ERROR(EINVAL
));
3107 if ((error
= nvlist_lookup_uint64(nvprops
,
3108 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE
),
3109 &volblocksize
)) != 0 && error
!= ENOENT
)
3110 return (SET_ERROR(EINVAL
));
3113 volblocksize
= zfs_prop_default_numeric(
3114 ZFS_PROP_VOLBLOCKSIZE
);
3116 if ((error
= zvol_check_volblocksize(
3117 volblocksize
)) != 0 ||
3118 (error
= zvol_check_volsize(volsize
,
3119 volblocksize
)) != 0)
3121 } else if (type
== DMU_OST_ZFS
) {
3125 * We have to have normalization and
3126 * case-folding flags correct when we do the
3127 * file system creation, so go figure them out
3130 VERIFY(nvlist_alloc(&zct
.zct_zplprops
,
3131 NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
3132 error
= zfs_fill_zplprops(fsname
, nvprops
,
3133 zct
.zct_zplprops
, &is_insensitive
);
3135 nvlist_free(zct
.zct_zplprops
);
3140 error
= dmu_objset_create(fsname
, type
,
3141 is_insensitive
? DS_FLAG_CI_DATASET
: 0, cbfunc
, &zct
);
3142 nvlist_free(zct
.zct_zplprops
);
3145 * It would be nice to do this atomically.
3148 error
= zfs_set_prop_nvlist(fsname
, ZPROP_SRC_LOCAL
,
3151 (void) dsl_destroy_head(fsname
);
3155 if (error
== 0 && type
== DMU_OST_ZVOL
)
3156 zvol_create_minors(fsname
);
3164 * "origin" -> name of origin snapshot
3165 * (optional) "props" -> { prop -> value }
3169 * outnvl: propname -> error code (int32)
3172 zfs_ioc_clone(const char *fsname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
3175 nvlist_t
*nvprops
= NULL
;
3178 if (nvlist_lookup_string(innvl
, "origin", &origin_name
) != 0)
3179 return (SET_ERROR(EINVAL
));
3180 (void) nvlist_lookup_nvlist(innvl
, "props", &nvprops
);
3182 if (strchr(fsname
, '@') ||
3183 strchr(fsname
, '%'))
3184 return (SET_ERROR(EINVAL
));
3186 if (dataset_namecheck(origin_name
, NULL
, NULL
) != 0)
3187 return (SET_ERROR(EINVAL
));
3188 error
= dmu_objset_clone(fsname
, origin_name
);
3193 * It would be nice to do this atomically.
3196 error
= zfs_set_prop_nvlist(fsname
, ZPROP_SRC_LOCAL
,
3199 (void) dsl_destroy_head(fsname
);
3204 zvol_create_minors(fsname
);
3212 * "snaps" -> { snapshot1, snapshot2 }
3213 * (optional) "props" -> { prop -> value (string) }
3216 * outnvl: snapshot -> error code (int32)
3219 zfs_ioc_snapshot(const char *poolname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
3222 nvlist_t
*props
= NULL
;
3224 nvpair_t
*pair
, *pair2
;
3226 (void) nvlist_lookup_nvlist(innvl
, "props", &props
);
3227 if ((error
= zfs_check_userprops(poolname
, props
)) != 0)
3230 if (!nvlist_empty(props
) &&
3231 zfs_earlier_version(poolname
, SPA_VERSION_SNAP_PROPS
))
3232 return (SET_ERROR(ENOTSUP
));
3234 if (nvlist_lookup_nvlist(innvl
, "snaps", &snaps
) != 0)
3235 return (SET_ERROR(EINVAL
));
3236 poollen
= strlen(poolname
);
3237 for (pair
= nvlist_next_nvpair(snaps
, NULL
); pair
!= NULL
;
3238 pair
= nvlist_next_nvpair(snaps
, pair
)) {
3239 const char *name
= nvpair_name(pair
);
3240 const char *cp
= strchr(name
, '@');
3243 * The snap name must contain an @, and the part after it must
3244 * contain only valid characters.
3246 if (cp
== NULL
|| snapshot_namecheck(cp
+ 1, NULL
, NULL
) != 0)
3247 return (SET_ERROR(EINVAL
));
3250 * The snap must be in the specified pool.
3252 if (strncmp(name
, poolname
, poollen
) != 0 ||
3253 (name
[poollen
] != '/' && name
[poollen
] != '@'))
3254 return (SET_ERROR(EXDEV
));
3256 /* This must be the only snap of this fs. */
3257 for (pair2
= nvlist_next_nvpair(snaps
, pair
);
3258 pair2
!= NULL
; pair2
= nvlist_next_nvpair(snaps
, pair2
)) {
3259 if (strncmp(name
, nvpair_name(pair2
), cp
- name
+ 1)
3261 return (SET_ERROR(EXDEV
));
3266 error
= dsl_dataset_snapshot(snaps
, props
, outnvl
);
3270 zvol_create_minors(poolname
);
3277 * innvl: "message" -> string
3281 zfs_ioc_log_history(const char *unused
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
3289 * The poolname in the ioctl is not set, we get it from the TSD,
3290 * which was set at the end of the last successful ioctl that allows
3291 * logging. The secpolicy func already checked that it is set.
3292 * Only one log ioctl is allowed after each successful ioctl, so
3293 * we clear the TSD here.
3295 poolname
= tsd_get(zfs_allow_log_key
);
3296 (void) tsd_set(zfs_allow_log_key
, NULL
);
3297 error
= spa_open(poolname
, &spa
, FTAG
);
3302 if (nvlist_lookup_string(innvl
, "message", &message
) != 0) {
3303 spa_close(spa
, FTAG
);
3304 return (SET_ERROR(EINVAL
));
3307 if (spa_version(spa
) < SPA_VERSION_ZPOOL_HISTORY
) {
3308 spa_close(spa
, FTAG
);
3309 return (SET_ERROR(ENOTSUP
));
3312 error
= spa_history_log(spa
, message
);
3313 spa_close(spa
, FTAG
);
3318 * The dp_config_rwlock must not be held when calling this, because the
3319 * unmount may need to write out data.
3321 * This function is best-effort. Callers must deal gracefully if it
3322 * remains mounted (or is remounted after this call).
3324 * XXX: This function should detect a failure to unmount a snapdir of a dataset
3325 * and return the appropriate error code when it is mounted. Its Illumos and
3326 * FreeBSD counterparts do this. We do not do this on Linux because there is no
3327 * clear way to access the mount information that FreeBSD and Illumos use to
3328 * distinguish between things with mounted snapshot directories, and things
3329 * without mounted snapshot directories, which include zvols. Returning a
3330 * failure for the latter causes `zfs destroy` to fail on zvol snapshots.
3333 zfs_unmount_snap(const char *snapname
)
3335 zfs_sb_t
*zsb
= NULL
;
3340 if ((ptr
= strchr(snapname
, '@')) == NULL
)
3343 dsname
= kmem_alloc(ptr
- snapname
+ 1, KM_SLEEP
);
3344 strlcpy(dsname
, snapname
, ptr
- snapname
+ 1);
3345 fullname
= strdup(snapname
);
3347 if (zfs_sb_hold(dsname
, FTAG
, &zsb
, B_FALSE
) == 0) {
3348 ASSERT(!dsl_pool_config_held(dmu_objset_pool(zsb
->z_os
)));
3349 (void) zfsctl_unmount_snapshot(zsb
, fullname
, MNT_FORCE
);
3350 zfs_sb_rele(zsb
, FTAG
);
3353 kmem_free(dsname
, ptr
- snapname
+ 1);
3361 zfs_unmount_snap_cb(const char *snapname
, void *arg
)
3363 return (zfs_unmount_snap(snapname
));
3367 * When a clone is destroyed, its origin may also need to be destroyed,
3368 * in which case it must be unmounted. This routine will do that unmount
3372 zfs_destroy_unmount_origin(const char *fsname
)
3378 error
= dmu_objset_hold(fsname
, FTAG
, &os
);
3381 ds
= dmu_objset_ds(os
);
3382 if (dsl_dir_is_clone(ds
->ds_dir
) && DS_IS_DEFER_DESTROY(ds
->ds_prev
)) {
3383 char originname
[MAXNAMELEN
];
3384 dsl_dataset_name(ds
->ds_prev
, originname
);
3385 dmu_objset_rele(os
, FTAG
);
3386 (void) zfs_unmount_snap(originname
);
3388 dmu_objset_rele(os
, FTAG
);
3394 * "snaps" -> { snapshot1, snapshot2 }
3395 * (optional boolean) "defer"
3398 * outnvl: snapshot -> error code (int32)
3401 zfs_ioc_destroy_snaps(const char *poolname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
3408 if (nvlist_lookup_nvlist(innvl
, "snaps", &snaps
) != 0)
3409 return (SET_ERROR(EINVAL
));
3410 defer
= nvlist_exists(innvl
, "defer");
3412 poollen
= strlen(poolname
);
3413 for (pair
= nvlist_next_nvpair(snaps
, NULL
); pair
!= NULL
;
3414 pair
= nvlist_next_nvpair(snaps
, pair
)) {
3415 const char *name
= nvpair_name(pair
);
3418 * The snap must be in the specified pool.
3420 if (strncmp(name
, poolname
, poollen
) != 0 ||
3421 (name
[poollen
] != '/' && name
[poollen
] != '@'))
3422 return (SET_ERROR(EXDEV
));
3424 error
= zfs_unmount_snap(name
);
3427 (void) zvol_remove_minor(name
);
3430 return (dsl_destroy_snapshots_nvl(snaps
, defer
, outnvl
));
3435 * zc_name name of dataset to destroy
3436 * zc_objset_type type of objset
3437 * zc_defer_destroy mark for deferred destroy
3442 zfs_ioc_destroy(zfs_cmd_t
*zc
)
3446 if (zc
->zc_objset_type
== DMU_OST_ZFS
) {
3447 err
= zfs_unmount_snap(zc
->zc_name
);
3452 if (strchr(zc
->zc_name
, '@'))
3453 err
= dsl_destroy_snapshot(zc
->zc_name
, zc
->zc_defer_destroy
);
3455 err
= dsl_destroy_head(zc
->zc_name
);
3456 if (zc
->zc_objset_type
== DMU_OST_ZVOL
&& err
== 0)
3457 (void) zvol_remove_minor(zc
->zc_name
);
3462 * fsname is name of dataset to rollback (to most recent snapshot)
3464 * innvl is not used.
3466 * outnvl: "target" -> name of most recent snapshot
3471 zfs_ioc_rollback(const char *fsname
, nvlist_t
*args
, nvlist_t
*outnvl
)
3476 if (get_zfs_sb(fsname
, &zsb
) == 0) {
3477 error
= zfs_suspend_fs(zsb
);
3481 error
= dsl_dataset_rollback(fsname
, zsb
, outnvl
);
3482 resume_err
= zfs_resume_fs(zsb
, fsname
);
3483 error
= error
? error
: resume_err
;
3485 deactivate_super(zsb
->z_sb
);
3487 error
= dsl_dataset_rollback(fsname
, NULL
, outnvl
);
3493 recursive_unmount(const char *fsname
, void *arg
)
3495 const char *snapname
= arg
;
3499 fullname
= kmem_asprintf("%s@%s", fsname
, snapname
);
3500 error
= zfs_unmount_snap(fullname
);
3508 * zc_name old name of dataset
3509 * zc_value new name of dataset
3510 * zc_cookie recursive flag (only valid for snapshots)
3515 zfs_ioc_rename(zfs_cmd_t
*zc
)
3517 boolean_t recursive
= zc
->zc_cookie
& 1;
3520 zc
->zc_value
[sizeof (zc
->zc_value
) - 1] = '\0';
3521 if (dataset_namecheck(zc
->zc_value
, NULL
, NULL
) != 0 ||
3522 strchr(zc
->zc_value
, '%'))
3523 return (SET_ERROR(EINVAL
));
3525 at
= strchr(zc
->zc_name
, '@');
3527 /* snaps must be in same fs */
3530 if (strncmp(zc
->zc_name
, zc
->zc_value
, at
- zc
->zc_name
+ 1))
3531 return (SET_ERROR(EXDEV
));
3533 if (zc
->zc_objset_type
== DMU_OST_ZFS
) {
3534 error
= dmu_objset_find(zc
->zc_name
,
3535 recursive_unmount
, at
+ 1,
3536 recursive
? DS_FIND_CHILDREN
: 0);
3542 error
= dsl_dataset_rename_snapshot(zc
->zc_name
,
3543 at
+ 1, strchr(zc
->zc_value
, '@') + 1, recursive
);
3548 return (dsl_dir_rename(zc
->zc_name
, zc
->zc_value
));
3553 zfs_check_settable(const char *dsname
, nvpair_t
*pair
, cred_t
*cr
)
3555 const char *propname
= nvpair_name(pair
);
3556 boolean_t issnap
= (strchr(dsname
, '@') != NULL
);
3557 zfs_prop_t prop
= zfs_name_to_prop(propname
);
3561 if (prop
== ZPROP_INVAL
) {
3562 if (zfs_prop_user(propname
)) {
3563 if ((err
= zfs_secpolicy_write_perms(dsname
,
3564 ZFS_DELEG_PERM_USERPROP
, cr
)))
3569 if (!issnap
&& zfs_prop_userquota(propname
)) {
3570 const char *perm
= NULL
;
3571 const char *uq_prefix
=
3572 zfs_userquota_prop_prefixes
[ZFS_PROP_USERQUOTA
];
3573 const char *gq_prefix
=
3574 zfs_userquota_prop_prefixes
[ZFS_PROP_GROUPQUOTA
];
3576 if (strncmp(propname
, uq_prefix
,
3577 strlen(uq_prefix
)) == 0) {
3578 perm
= ZFS_DELEG_PERM_USERQUOTA
;
3579 } else if (strncmp(propname
, gq_prefix
,
3580 strlen(gq_prefix
)) == 0) {
3581 perm
= ZFS_DELEG_PERM_GROUPQUOTA
;
3583 /* USERUSED and GROUPUSED are read-only */
3584 return (SET_ERROR(EINVAL
));
3587 if ((err
= zfs_secpolicy_write_perms(dsname
, perm
, cr
)))
3592 return (SET_ERROR(EINVAL
));
3596 return (SET_ERROR(EINVAL
));
3598 if (nvpair_type(pair
) == DATA_TYPE_NVLIST
) {
3600 * dsl_prop_get_all_impl() returns properties in this
3604 VERIFY(nvpair_value_nvlist(pair
, &attrs
) == 0);
3605 VERIFY(nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
3610 * Check that this value is valid for this pool version
3613 case ZFS_PROP_COMPRESSION
:
3615 * If the user specified gzip compression, make sure
3616 * the SPA supports it. We ignore any errors here since
3617 * we'll catch them later.
3619 if (nvpair_type(pair
) == DATA_TYPE_UINT64
&&
3620 nvpair_value_uint64(pair
, &intval
) == 0) {
3621 if (intval
>= ZIO_COMPRESS_GZIP_1
&&
3622 intval
<= ZIO_COMPRESS_GZIP_9
&&
3623 zfs_earlier_version(dsname
,
3624 SPA_VERSION_GZIP_COMPRESSION
)) {
3625 return (SET_ERROR(ENOTSUP
));
3628 if (intval
== ZIO_COMPRESS_ZLE
&&
3629 zfs_earlier_version(dsname
,
3630 SPA_VERSION_ZLE_COMPRESSION
))
3631 return (SET_ERROR(ENOTSUP
));
3633 if (intval
== ZIO_COMPRESS_LZ4
) {
3634 zfeature_info_t
*feature
=
3636 SPA_FEATURE_LZ4_COMPRESS
];
3639 if ((err
= spa_open(dsname
, &spa
, FTAG
)) != 0)
3642 if (!spa_feature_is_enabled(spa
, feature
)) {
3643 spa_close(spa
, FTAG
);
3644 return (SET_ERROR(ENOTSUP
));
3646 spa_close(spa
, FTAG
);
3650 * If this is a bootable dataset then
3651 * verify that the compression algorithm
3652 * is supported for booting. We must return
3653 * something other than ENOTSUP since it
3654 * implies a downrev pool version.
3656 if (zfs_is_bootfs(dsname
) &&
3657 !BOOTFS_COMPRESS_VALID(intval
)) {
3658 return (SET_ERROR(ERANGE
));
3663 case ZFS_PROP_COPIES
:
3664 if (zfs_earlier_version(dsname
, SPA_VERSION_DITTO_BLOCKS
))
3665 return (SET_ERROR(ENOTSUP
));
3668 case ZFS_PROP_DEDUP
:
3669 if (zfs_earlier_version(dsname
, SPA_VERSION_DEDUP
))
3670 return (SET_ERROR(ENOTSUP
));
3673 case ZFS_PROP_SHARESMB
:
3674 if (zpl_earlier_version(dsname
, ZPL_VERSION_FUID
))
3675 return (SET_ERROR(ENOTSUP
));
3678 case ZFS_PROP_ACLINHERIT
:
3679 if (nvpair_type(pair
) == DATA_TYPE_UINT64
&&
3680 nvpair_value_uint64(pair
, &intval
) == 0) {
3681 if (intval
== ZFS_ACL_PASSTHROUGH_X
&&
3682 zfs_earlier_version(dsname
,
3683 SPA_VERSION_PASSTHROUGH_X
))
3684 return (SET_ERROR(ENOTSUP
));
3691 return (zfs_secpolicy_setprop(dsname
, prop
, pair
, CRED()));
3695 * Checks for a race condition to make sure we don't increment a feature flag
3699 zfs_prop_activate_feature_check(void *arg
, dmu_tx_t
*tx
)
3701 spa_t
*spa
= dmu_tx_pool(tx
)->dp_spa
;
3702 zfeature_info_t
*feature
= arg
;
3704 if (!spa_feature_is_active(spa
, feature
))
3707 return (SET_ERROR(EBUSY
));
3711 * The callback invoked on feature activation in the sync task caused by
3712 * zfs_prop_activate_feature.
3715 zfs_prop_activate_feature_sync(void *arg
, dmu_tx_t
*tx
)
3717 spa_t
*spa
= dmu_tx_pool(tx
)->dp_spa
;
3718 zfeature_info_t
*feature
= arg
;
3720 spa_feature_incr(spa
, feature
, tx
);
3724 * Activates a feature on a pool in response to a property setting. This
3725 * creates a new sync task which modifies the pool to reflect the feature
3729 zfs_prop_activate_feature(spa_t
*spa
, zfeature_info_t
*feature
)
3733 /* EBUSY here indicates that the feature is already active */
3734 err
= dsl_sync_task(spa_name(spa
),
3735 zfs_prop_activate_feature_check
, zfs_prop_activate_feature_sync
,
3738 if (err
!= 0 && err
!= EBUSY
)
3745 * Removes properties from the given props list that fail permission checks
3746 * needed to clear them and to restore them in case of a receive error. For each
3747 * property, make sure we have both set and inherit permissions.
3749 * Returns the first error encountered if any permission checks fail. If the
3750 * caller provides a non-NULL errlist, it also gives the complete list of names
3751 * of all the properties that failed a permission check along with the
3752 * corresponding error numbers. The caller is responsible for freeing the
3755 * If every property checks out successfully, zero is returned and the list
3756 * pointed at by errlist is NULL.
3759 zfs_check_clearable(char *dataset
, nvlist_t
*props
, nvlist_t
**errlist
)
3762 nvpair_t
*pair
, *next_pair
;
3769 VERIFY(nvlist_alloc(&errors
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
3771 zc
= kmem_alloc(sizeof (zfs_cmd_t
), KM_SLEEP
| KM_NODEBUG
);
3772 (void) strcpy(zc
->zc_name
, dataset
);
3773 pair
= nvlist_next_nvpair(props
, NULL
);
3774 while (pair
!= NULL
) {
3775 next_pair
= nvlist_next_nvpair(props
, pair
);
3777 (void) strcpy(zc
->zc_value
, nvpair_name(pair
));
3778 if ((err
= zfs_check_settable(dataset
, pair
, CRED())) != 0 ||
3779 (err
= zfs_secpolicy_inherit_prop(zc
, NULL
, CRED())) != 0) {
3780 VERIFY(nvlist_remove_nvpair(props
, pair
) == 0);
3781 VERIFY(nvlist_add_int32(errors
,
3782 zc
->zc_value
, err
) == 0);
3786 kmem_free(zc
, sizeof (zfs_cmd_t
));
3788 if ((pair
= nvlist_next_nvpair(errors
, NULL
)) == NULL
) {
3789 nvlist_free(errors
);
3792 VERIFY(nvpair_value_int32(pair
, &rv
) == 0);
3795 if (errlist
== NULL
)
3796 nvlist_free(errors
);
3804 propval_equals(nvpair_t
*p1
, nvpair_t
*p2
)
3806 if (nvpair_type(p1
) == DATA_TYPE_NVLIST
) {
3807 /* dsl_prop_get_all_impl() format */
3809 VERIFY(nvpair_value_nvlist(p1
, &attrs
) == 0);
3810 VERIFY(nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
3814 if (nvpair_type(p2
) == DATA_TYPE_NVLIST
) {
3816 VERIFY(nvpair_value_nvlist(p2
, &attrs
) == 0);
3817 VERIFY(nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
3821 if (nvpair_type(p1
) != nvpair_type(p2
))
3824 if (nvpair_type(p1
) == DATA_TYPE_STRING
) {
3825 char *valstr1
, *valstr2
;
3827 VERIFY(nvpair_value_string(p1
, (char **)&valstr1
) == 0);
3828 VERIFY(nvpair_value_string(p2
, (char **)&valstr2
) == 0);
3829 return (strcmp(valstr1
, valstr2
) == 0);
3831 uint64_t intval1
, intval2
;
3833 VERIFY(nvpair_value_uint64(p1
, &intval1
) == 0);
3834 VERIFY(nvpair_value_uint64(p2
, &intval2
) == 0);
3835 return (intval1
== intval2
);
3840 * Remove properties from props if they are not going to change (as determined
3841 * by comparison with origprops). Remove them from origprops as well, since we
3842 * do not need to clear or restore properties that won't change.
3845 props_reduce(nvlist_t
*props
, nvlist_t
*origprops
)
3847 nvpair_t
*pair
, *next_pair
;
3849 if (origprops
== NULL
)
3850 return; /* all props need to be received */
3852 pair
= nvlist_next_nvpair(props
, NULL
);
3853 while (pair
!= NULL
) {
3854 const char *propname
= nvpair_name(pair
);
3857 next_pair
= nvlist_next_nvpair(props
, pair
);
3859 if ((nvlist_lookup_nvpair(origprops
, propname
,
3860 &match
) != 0) || !propval_equals(pair
, match
))
3861 goto next
; /* need to set received value */
3863 /* don't clear the existing received value */
3864 (void) nvlist_remove_nvpair(origprops
, match
);
3865 /* don't bother receiving the property */
3866 (void) nvlist_remove_nvpair(props
, pair
);
3873 static boolean_t zfs_ioc_recv_inject_err
;
3878 * zc_name name of containing filesystem
3879 * zc_nvlist_src{_size} nvlist of properties to apply
3880 * zc_value name of snapshot to create
3881 * zc_string name of clone origin (if DRR_FLAG_CLONE)
3882 * zc_cookie file descriptor to recv from
3883 * zc_begin_record the BEGIN record of the stream (not byteswapped)
3884 * zc_guid force flag
3885 * zc_cleanup_fd cleanup-on-exit file descriptor
3886 * zc_action_handle handle for this guid/ds mapping (or zero on first call)
3889 * zc_cookie number of bytes read
3890 * zc_nvlist_dst{_size} error for each unapplied received property
3891 * zc_obj zprop_errflags_t
3892 * zc_action_handle handle for this guid/ds mapping
3895 zfs_ioc_recv(zfs_cmd_t
*zc
)
3898 dmu_recv_cookie_t drc
;
3899 boolean_t force
= (boolean_t
)zc
->zc_guid
;
3902 int props_error
= 0;
3905 nvlist_t
*props
= NULL
; /* sent properties */
3906 nvlist_t
*origprops
= NULL
; /* existing properties */
3907 char *origin
= NULL
;
3909 char tofs
[ZFS_MAXNAMELEN
];
3910 boolean_t first_recvd_props
= B_FALSE
;
3912 if (dataset_namecheck(zc
->zc_value
, NULL
, NULL
) != 0 ||
3913 strchr(zc
->zc_value
, '@') == NULL
||
3914 strchr(zc
->zc_value
, '%'))
3915 return (SET_ERROR(EINVAL
));
3917 (void) strcpy(tofs
, zc
->zc_value
);
3918 tosnap
= strchr(tofs
, '@');
3921 if (zc
->zc_nvlist_src
!= 0 &&
3922 (error
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
3923 zc
->zc_iflags
, &props
)) != 0)
3930 return (SET_ERROR(EBADF
));
3933 VERIFY(nvlist_alloc(&errors
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
3935 if (zc
->zc_string
[0])
3936 origin
= zc
->zc_string
;
3938 error
= dmu_recv_begin(tofs
, tosnap
,
3939 &zc
->zc_begin_record
, force
, origin
, &drc
);
3944 * Set properties before we receive the stream so that they are applied
3945 * to the new data. Note that we must call dmu_recv_stream() if
3946 * dmu_recv_begin() succeeds.
3948 if (props
!= NULL
&& !drc
.drc_newfs
) {
3949 if (spa_version(dsl_dataset_get_spa(drc
.drc_ds
)) >=
3950 SPA_VERSION_RECVD_PROPS
&&
3951 !dsl_prop_get_hasrecvd(tofs
))
3952 first_recvd_props
= B_TRUE
;
3955 * If new received properties are supplied, they are to
3956 * completely replace the existing received properties, so stash
3957 * away the existing ones.
3959 if (dsl_prop_get_received(tofs
, &origprops
) == 0) {
3960 nvlist_t
*errlist
= NULL
;
3962 * Don't bother writing a property if its value won't
3963 * change (and avoid the unnecessary security checks).
3965 * The first receive after SPA_VERSION_RECVD_PROPS is a
3966 * special case where we blow away all local properties
3969 if (!first_recvd_props
)
3970 props_reduce(props
, origprops
);
3971 if (zfs_check_clearable(tofs
, origprops
, &errlist
) != 0)
3972 (void) nvlist_merge(errors
, errlist
, 0);
3973 nvlist_free(errlist
);
3975 if (clear_received_props(tofs
, origprops
,
3976 first_recvd_props
? NULL
: props
) != 0)
3977 zc
->zc_obj
|= ZPROP_ERR_NOCLEAR
;
3979 zc
->zc_obj
|= ZPROP_ERR_NOCLEAR
;
3983 if (props
!= NULL
) {
3984 props_error
= dsl_prop_set_hasrecvd(tofs
);
3986 if (props_error
== 0) {
3987 (void) zfs_set_prop_nvlist(tofs
, ZPROP_SRC_RECEIVED
,
3992 if (zc
->zc_nvlist_dst_size
!= 0 &&
3993 (nvlist_smush(errors
, zc
->zc_nvlist_dst_size
) != 0 ||
3994 put_nvlist(zc
, errors
) != 0)) {
3996 * Caller made zc->zc_nvlist_dst less than the minimum expected
3997 * size or supplied an invalid address.
3999 props_error
= SET_ERROR(EINVAL
);
4003 error
= dmu_recv_stream(&drc
, fp
->f_vnode
, &off
, zc
->zc_cleanup_fd
,
4004 &zc
->zc_action_handle
);
4007 zfs_sb_t
*zsb
= NULL
;
4009 if (get_zfs_sb(tofs
, &zsb
) == 0) {
4013 error
= zfs_suspend_fs(zsb
);
4015 * If the suspend fails, then the recv_end will
4016 * likely also fail, and clean up after itself.
4018 end_err
= dmu_recv_end(&drc
, zsb
);
4020 error
= zfs_resume_fs(zsb
, tofs
);
4021 error
= error
? error
: end_err
;
4022 deactivate_super(zsb
->z_sb
);
4024 error
= dmu_recv_end(&drc
, NULL
);
4028 zc
->zc_cookie
= off
- fp
->f_offset
;
4029 if (VOP_SEEK(fp
->f_vnode
, fp
->f_offset
, &off
, NULL
) == 0)
4033 if (zfs_ioc_recv_inject_err
) {
4034 zfs_ioc_recv_inject_err
= B_FALSE
;
4041 zvol_create_minors(tofs
);
4045 * On error, restore the original props.
4047 if (error
!= 0 && props
!= NULL
&& !drc
.drc_newfs
) {
4048 if (clear_received_props(tofs
, props
, NULL
) != 0) {
4050 * We failed to clear the received properties.
4051 * Since we may have left a $recvd value on the
4052 * system, we can't clear the $hasrecvd flag.
4054 zc
->zc_obj
|= ZPROP_ERR_NORESTORE
;
4055 } else if (first_recvd_props
) {
4056 dsl_prop_unset_hasrecvd(tofs
);
4059 if (origprops
== NULL
&& !drc
.drc_newfs
) {
4060 /* We failed to stash the original properties. */
4061 zc
->zc_obj
|= ZPROP_ERR_NORESTORE
;
4065 * dsl_props_set() will not convert RECEIVED to LOCAL on or
4066 * after SPA_VERSION_RECVD_PROPS, so we need to specify LOCAL
4067 * explictly if we're restoring local properties cleared in the
4068 * first new-style receive.
4070 if (origprops
!= NULL
&&
4071 zfs_set_prop_nvlist(tofs
, (first_recvd_props
?
4072 ZPROP_SRC_LOCAL
: ZPROP_SRC_RECEIVED
),
4073 origprops
, NULL
) != 0) {
4075 * We stashed the original properties but failed to
4078 zc
->zc_obj
|= ZPROP_ERR_NORESTORE
;
4083 nvlist_free(origprops
);
4084 nvlist_free(errors
);
4088 error
= props_error
;
4095 * zc_name name of snapshot to send
4096 * zc_cookie file descriptor to send stream to
4097 * zc_obj fromorigin flag (mutually exclusive with zc_fromobj)
4098 * zc_sendobj objsetid of snapshot to send
4099 * zc_fromobj objsetid of incremental fromsnap (may be zero)
4100 * zc_guid if set, estimate size of stream only. zc_cookie is ignored.
4101 * output size in zc_objset_type.
4106 zfs_ioc_send(zfs_cmd_t
*zc
)
4110 boolean_t estimate
= (zc
->zc_guid
!= 0);
4112 if (zc
->zc_obj
!= 0) {
4114 dsl_dataset_t
*tosnap
;
4116 error
= dsl_pool_hold(zc
->zc_name
, FTAG
, &dp
);
4120 error
= dsl_dataset_hold_obj(dp
, zc
->zc_sendobj
, FTAG
, &tosnap
);
4122 dsl_pool_rele(dp
, FTAG
);
4126 if (dsl_dir_is_clone(tosnap
->ds_dir
))
4127 zc
->zc_fromobj
= tosnap
->ds_dir
->dd_phys
->dd_origin_obj
;
4128 dsl_dataset_rele(tosnap
, FTAG
);
4129 dsl_pool_rele(dp
, FTAG
);
4134 dsl_dataset_t
*tosnap
;
4135 dsl_dataset_t
*fromsnap
= NULL
;
4137 error
= dsl_pool_hold(zc
->zc_name
, FTAG
, &dp
);
4141 error
= dsl_dataset_hold_obj(dp
, zc
->zc_sendobj
, FTAG
, &tosnap
);
4143 dsl_pool_rele(dp
, FTAG
);
4147 if (zc
->zc_fromobj
!= 0) {
4148 error
= dsl_dataset_hold_obj(dp
, zc
->zc_fromobj
,
4151 dsl_dataset_rele(tosnap
, FTAG
);
4152 dsl_pool_rele(dp
, FTAG
);
4157 error
= dmu_send_estimate(tosnap
, fromsnap
,
4158 &zc
->zc_objset_type
);
4160 if (fromsnap
!= NULL
)
4161 dsl_dataset_rele(fromsnap
, FTAG
);
4162 dsl_dataset_rele(tosnap
, FTAG
);
4163 dsl_pool_rele(dp
, FTAG
);
4165 file_t
*fp
= getf(zc
->zc_cookie
);
4167 return (SET_ERROR(EBADF
));
4170 error
= dmu_send_obj(zc
->zc_name
, zc
->zc_sendobj
,
4171 zc
->zc_fromobj
, zc
->zc_cookie
, fp
->f_vnode
, &off
);
4173 if (VOP_SEEK(fp
->f_vnode
, fp
->f_offset
, &off
, NULL
) == 0)
4175 releasef(zc
->zc_cookie
);
4182 * zc_name name of snapshot on which to report progress
4183 * zc_cookie file descriptor of send stream
4186 * zc_cookie number of bytes written in send stream thus far
4189 zfs_ioc_send_progress(zfs_cmd_t
*zc
)
4193 dmu_sendarg_t
*dsp
= NULL
;
4196 error
= dsl_pool_hold(zc
->zc_name
, FTAG
, &dp
);
4200 error
= dsl_dataset_hold(dp
, zc
->zc_name
, FTAG
, &ds
);
4202 dsl_pool_rele(dp
, FTAG
);
4206 mutex_enter(&ds
->ds_sendstream_lock
);
4209 * Iterate over all the send streams currently active on this dataset.
4210 * If there's one which matches the specified file descriptor _and_ the
4211 * stream was started by the current process, return the progress of
4215 for (dsp
= list_head(&ds
->ds_sendstreams
); dsp
!= NULL
;
4216 dsp
= list_next(&ds
->ds_sendstreams
, dsp
)) {
4217 if (dsp
->dsa_outfd
== zc
->zc_cookie
&&
4218 dsp
->dsa_proc
->group_leader
== curproc
->group_leader
)
4223 zc
->zc_cookie
= *(dsp
->dsa_off
);
4225 error
= SET_ERROR(ENOENT
);
4227 mutex_exit(&ds
->ds_sendstream_lock
);
4228 dsl_dataset_rele(ds
, FTAG
);
4229 dsl_pool_rele(dp
, FTAG
);
4234 zfs_ioc_inject_fault(zfs_cmd_t
*zc
)
4238 error
= zio_inject_fault(zc
->zc_name
, (int)zc
->zc_guid
, &id
,
4239 &zc
->zc_inject_record
);
4242 zc
->zc_guid
= (uint64_t)id
;
4248 zfs_ioc_clear_fault(zfs_cmd_t
*zc
)
4250 return (zio_clear_fault((int)zc
->zc_guid
));
4254 zfs_ioc_inject_list_next(zfs_cmd_t
*zc
)
4256 int id
= (int)zc
->zc_guid
;
4259 error
= zio_inject_list_next(&id
, zc
->zc_name
, sizeof (zc
->zc_name
),
4260 &zc
->zc_inject_record
);
4268 zfs_ioc_error_log(zfs_cmd_t
*zc
)
4272 size_t count
= (size_t)zc
->zc_nvlist_dst_size
;
4274 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
4277 error
= spa_get_errlog(spa
, (void *)(uintptr_t)zc
->zc_nvlist_dst
,
4280 zc
->zc_nvlist_dst_size
= count
;
4282 zc
->zc_nvlist_dst_size
= spa_get_errlog_size(spa
);
4284 spa_close(spa
, FTAG
);
4290 zfs_ioc_clear(zfs_cmd_t
*zc
)
4297 * On zpool clear we also fix up missing slogs
4299 mutex_enter(&spa_namespace_lock
);
4300 spa
= spa_lookup(zc
->zc_name
);
4302 mutex_exit(&spa_namespace_lock
);
4303 return (SET_ERROR(EIO
));
4305 if (spa_get_log_state(spa
) == SPA_LOG_MISSING
) {
4306 /* we need to let spa_open/spa_load clear the chains */
4307 spa_set_log_state(spa
, SPA_LOG_CLEAR
);
4309 spa
->spa_last_open_failed
= 0;
4310 mutex_exit(&spa_namespace_lock
);
4312 if (zc
->zc_cookie
& ZPOOL_NO_REWIND
) {
4313 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
4316 nvlist_t
*config
= NULL
;
4318 if (zc
->zc_nvlist_src
== 0)
4319 return (SET_ERROR(EINVAL
));
4321 if ((error
= get_nvlist(zc
->zc_nvlist_src
,
4322 zc
->zc_nvlist_src_size
, zc
->zc_iflags
, &policy
)) == 0) {
4323 error
= spa_open_rewind(zc
->zc_name
, &spa
, FTAG
,
4325 if (config
!= NULL
) {
4328 if ((err
= put_nvlist(zc
, config
)) != 0)
4330 nvlist_free(config
);
4332 nvlist_free(policy
);
4339 spa_vdev_state_enter(spa
, SCL_NONE
);
4341 if (zc
->zc_guid
== 0) {
4344 vd
= spa_lookup_by_guid(spa
, zc
->zc_guid
, B_TRUE
);
4346 (void) spa_vdev_state_exit(spa
, NULL
, ENODEV
);
4347 spa_close(spa
, FTAG
);
4348 return (SET_ERROR(ENODEV
));
4352 vdev_clear(spa
, vd
);
4354 (void) spa_vdev_state_exit(spa
, NULL
, 0);
4357 * Resume any suspended I/Os.
4359 if (zio_resume(spa
) != 0)
4360 error
= SET_ERROR(EIO
);
4362 spa_close(spa
, FTAG
);
4368 zfs_ioc_pool_reopen(zfs_cmd_t
*zc
)
4373 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
4377 spa_vdev_state_enter(spa
, SCL_NONE
);
4380 * If a resilver is already in progress then set the
4381 * spa_scrub_reopen flag to B_TRUE so that we don't restart
4382 * the scan as a side effect of the reopen. Otherwise, let
4383 * vdev_open() decided if a resilver is required.
4385 spa
->spa_scrub_reopen
= dsl_scan_resilvering(spa
->spa_dsl_pool
);
4386 vdev_reopen(spa
->spa_root_vdev
);
4387 spa
->spa_scrub_reopen
= B_FALSE
;
4389 (void) spa_vdev_state_exit(spa
, NULL
, 0);
4390 spa_close(spa
, FTAG
);
4395 * zc_name name of filesystem
4396 * zc_value name of origin snapshot
4399 * zc_string name of conflicting snapshot, if there is one
4402 zfs_ioc_promote(zfs_cmd_t
*zc
)
4407 * We don't need to unmount *all* the origin fs's snapshots, but
4410 cp
= strchr(zc
->zc_value
, '@');
4413 (void) dmu_objset_find(zc
->zc_value
,
4414 zfs_unmount_snap_cb
, NULL
, DS_FIND_SNAPSHOTS
);
4415 return (dsl_dataset_promote(zc
->zc_name
, zc
->zc_string
));
4419 * Retrieve a single {user|group}{used|quota}@... property.
4422 * zc_name name of filesystem
4423 * zc_objset_type zfs_userquota_prop_t
4424 * zc_value domain name (eg. "S-1-234-567-89")
4425 * zc_guid RID/UID/GID
4428 * zc_cookie property value
4431 zfs_ioc_userspace_one(zfs_cmd_t
*zc
)
4436 if (zc
->zc_objset_type
>= ZFS_NUM_USERQUOTA_PROPS
)
4437 return (SET_ERROR(EINVAL
));
4439 error
= zfs_sb_hold(zc
->zc_name
, FTAG
, &zsb
, B_FALSE
);
4443 error
= zfs_userspace_one(zsb
,
4444 zc
->zc_objset_type
, zc
->zc_value
, zc
->zc_guid
, &zc
->zc_cookie
);
4445 zfs_sb_rele(zsb
, FTAG
);
4452 * zc_name name of filesystem
4453 * zc_cookie zap cursor
4454 * zc_objset_type zfs_userquota_prop_t
4455 * zc_nvlist_dst[_size] buffer to fill (not really an nvlist)
4458 * zc_nvlist_dst[_size] data buffer (array of zfs_useracct_t)
4459 * zc_cookie zap cursor
4462 zfs_ioc_userspace_many(zfs_cmd_t
*zc
)
4465 int bufsize
= zc
->zc_nvlist_dst_size
;
4470 return (SET_ERROR(ENOMEM
));
4472 error
= zfs_sb_hold(zc
->zc_name
, FTAG
, &zsb
, B_FALSE
);
4476 buf
= vmem_alloc(bufsize
, KM_SLEEP
);
4478 error
= zfs_userspace_many(zsb
, zc
->zc_objset_type
, &zc
->zc_cookie
,
4479 buf
, &zc
->zc_nvlist_dst_size
);
4482 error
= xcopyout(buf
,
4483 (void *)(uintptr_t)zc
->zc_nvlist_dst
,
4484 zc
->zc_nvlist_dst_size
);
4486 vmem_free(buf
, bufsize
);
4487 zfs_sb_rele(zsb
, FTAG
);
4494 * zc_name name of filesystem
4500 zfs_ioc_userspace_upgrade(zfs_cmd_t
*zc
)
4506 if (get_zfs_sb(zc
->zc_name
, &zsb
) == 0) {
4507 if (!dmu_objset_userused_enabled(zsb
->z_os
)) {
4509 * If userused is not enabled, it may be because the
4510 * objset needs to be closed & reopened (to grow the
4511 * objset_phys_t). Suspend/resume the fs will do that.
4513 error
= zfs_suspend_fs(zsb
);
4515 dmu_objset_refresh_ownership(zsb
->z_os
,
4517 error
= zfs_resume_fs(zsb
, zc
->zc_name
);
4521 error
= dmu_objset_userspace_upgrade(zsb
->z_os
);
4522 deactivate_super(zsb
->z_sb
);
4524 /* XXX kind of reading contents without owning */
4525 error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
);
4529 error
= dmu_objset_userspace_upgrade(os
);
4530 dmu_objset_rele(os
, FTAG
);
4537 zfs_ioc_share(zfs_cmd_t
*zc
)
4539 return (SET_ERROR(ENOSYS
));
4542 ace_t full_access
[] = {
4543 {(uid_t
)-1, ACE_ALL_PERMS
, ACE_EVERYONE
, 0}
4548 * zc_name name of containing filesystem
4549 * zc_obj object # beyond which we want next in-use object #
4552 * zc_obj next in-use object #
4555 zfs_ioc_next_obj(zfs_cmd_t
*zc
)
4557 objset_t
*os
= NULL
;
4560 error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
);
4564 error
= dmu_object_next(os
, &zc
->zc_obj
, B_FALSE
,
4565 os
->os_dsl_dataset
->ds_phys
->ds_prev_snap_txg
);
4567 dmu_objset_rele(os
, FTAG
);
4573 * zc_name name of filesystem
4574 * zc_value prefix name for snapshot
4575 * zc_cleanup_fd cleanup-on-exit file descriptor for calling process
4578 * zc_value short name of new snapshot
4581 zfs_ioc_tmp_snapshot(zfs_cmd_t
*zc
)
4588 error
= zfs_onexit_fd_hold(zc
->zc_cleanup_fd
, &minor
);
4592 snap_name
= kmem_asprintf("%s-%016llx", zc
->zc_value
,
4593 (u_longlong_t
)ddi_get_lbolt64());
4594 hold_name
= kmem_asprintf("%%%s", zc
->zc_value
);
4596 error
= dsl_dataset_snapshot_tmp(zc
->zc_name
, snap_name
, minor
,
4599 (void) strcpy(zc
->zc_value
, snap_name
);
4602 zfs_onexit_fd_rele(zc
->zc_cleanup_fd
);
4608 * zc_name name of "to" snapshot
4609 * zc_value name of "from" snapshot
4610 * zc_cookie file descriptor to write diff data on
4613 * dmu_diff_record_t's to the file descriptor
4616 zfs_ioc_diff(zfs_cmd_t
*zc
)
4622 fp
= getf(zc
->zc_cookie
);
4624 return (SET_ERROR(EBADF
));
4628 error
= dmu_diff(zc
->zc_name
, zc
->zc_value
, fp
->f_vnode
, &off
);
4630 if (VOP_SEEK(fp
->f_vnode
, fp
->f_offset
, &off
, NULL
) == 0)
4632 releasef(zc
->zc_cookie
);
4638 * Remove all ACL files in shares dir
4640 #ifdef HAVE_SMB_SHARE
4642 zfs_smb_acl_purge(znode_t
*dzp
)
4645 zap_attribute_t zap
;
4646 zfs_sb_t
*zsb
= ZTOZSB(dzp
);
4649 for (zap_cursor_init(&zc
, zsb
->z_os
, dzp
->z_id
);
4650 (error
= zap_cursor_retrieve(&zc
, &zap
)) == 0;
4651 zap_cursor_advance(&zc
)) {
4652 if ((error
= VOP_REMOVE(ZTOV(dzp
), zap
.za_name
, kcred
,
4656 zap_cursor_fini(&zc
);
4659 #endif /* HAVE_SMB_SHARE */
4662 zfs_ioc_smb_acl(zfs_cmd_t
*zc
)
4664 #ifdef HAVE_SMB_SHARE
4667 vnode_t
*resourcevp
= NULL
;
4676 if ((error
= lookupname(zc
->zc_value
, UIO_SYSSPACE
,
4677 NO_FOLLOW
, NULL
, &vp
)) != 0)
4680 /* Now make sure mntpnt and dataset are ZFS */
4682 if (vp
->v_vfsp
->vfs_fstype
!= zfsfstype
||
4683 (strcmp((char *)refstr_value(vp
->v_vfsp
->vfs_resource
),
4684 zc
->zc_name
) != 0)) {
4686 return (SET_ERROR(EINVAL
));
4694 * Create share dir if its missing.
4696 mutex_enter(&zsb
->z_lock
);
4697 if (zsb
->z_shares_dir
== 0) {
4700 tx
= dmu_tx_create(zsb
->z_os
);
4701 dmu_tx_hold_zap(tx
, MASTER_NODE_OBJ
, TRUE
,
4703 dmu_tx_hold_zap(tx
, DMU_NEW_OBJECT
, FALSE
, NULL
);
4704 error
= dmu_tx_assign(tx
, TXG_WAIT
);
4708 error
= zfs_create_share_dir(zsb
, tx
);
4712 mutex_exit(&zsb
->z_lock
);
4718 mutex_exit(&zsb
->z_lock
);
4720 ASSERT(zsb
->z_shares_dir
);
4721 if ((error
= zfs_zget(zsb
, zsb
->z_shares_dir
, &sharedir
)) != 0) {
4727 switch (zc
->zc_cookie
) {
4728 case ZFS_SMB_ACL_ADD
:
4729 vattr
.va_mask
= AT_MODE
|AT_UID
|AT_GID
|AT_TYPE
;
4730 vattr
.va_mode
= S_IFREG
|0777;
4734 vsec
.vsa_mask
= VSA_ACE
;
4735 vsec
.vsa_aclentp
= &full_access
;
4736 vsec
.vsa_aclentsz
= sizeof (full_access
);
4737 vsec
.vsa_aclcnt
= 1;
4739 error
= VOP_CREATE(ZTOV(sharedir
), zc
->zc_string
,
4740 &vattr
, EXCL
, 0, &resourcevp
, kcred
, 0, NULL
, &vsec
);
4742 VN_RELE(resourcevp
);
4745 case ZFS_SMB_ACL_REMOVE
:
4746 error
= VOP_REMOVE(ZTOV(sharedir
), zc
->zc_string
, kcred
,
4750 case ZFS_SMB_ACL_RENAME
:
4751 if ((error
= get_nvlist(zc
->zc_nvlist_src
,
4752 zc
->zc_nvlist_src_size
, zc
->zc_iflags
, &nvlist
)) != 0) {
4757 if (nvlist_lookup_string(nvlist
, ZFS_SMB_ACL_SRC
, &src
) ||
4758 nvlist_lookup_string(nvlist
, ZFS_SMB_ACL_TARGET
,
4761 VN_RELE(ZTOV(sharedir
));
4763 nvlist_free(nvlist
);
4766 error
= VOP_RENAME(ZTOV(sharedir
), src
, ZTOV(sharedir
), target
,
4768 nvlist_free(nvlist
);
4771 case ZFS_SMB_ACL_PURGE
:
4772 error
= zfs_smb_acl_purge(sharedir
);
4776 error
= SET_ERROR(EINVAL
);
4781 VN_RELE(ZTOV(sharedir
));
4787 return (SET_ERROR(ENOTSUP
));
4788 #endif /* HAVE_SMB_SHARE */
4793 * "holds" -> { snapname -> holdname (string), ... }
4794 * (optional) "cleanup_fd" -> fd (int32)
4798 * snapname -> error value (int32)
4804 zfs_ioc_hold(const char *pool
, nvlist_t
*args
, nvlist_t
*errlist
)
4807 int cleanup_fd
= -1;
4811 error
= nvlist_lookup_nvlist(args
, "holds", &holds
);
4813 return (SET_ERROR(EINVAL
));
4815 if (nvlist_lookup_int32(args
, "cleanup_fd", &cleanup_fd
) == 0) {
4816 error
= zfs_onexit_fd_hold(cleanup_fd
, &minor
);
4821 error
= dsl_dataset_user_hold(holds
, minor
, errlist
);
4823 zfs_onexit_fd_rele(cleanup_fd
);
4828 * innvl is not used.
4831 * holdname -> time added (uint64 seconds since epoch)
4837 zfs_ioc_get_holds(const char *snapname
, nvlist_t
*args
, nvlist_t
*outnvl
)
4839 return (dsl_dataset_get_holds(snapname
, outnvl
));
4844 * snapname -> { holdname, ... }
4849 * snapname -> error value (int32)
4855 zfs_ioc_release(const char *pool
, nvlist_t
*holds
, nvlist_t
*errlist
)
4857 return (dsl_dataset_user_release(holds
, errlist
));
4862 * zc_guid flags (ZEVENT_NONBLOCK)
4863 * zc_cleanup_fd zevent file descriptor
4866 * zc_nvlist_dst next nvlist event
4867 * zc_cookie dropped events since last get
4870 zfs_ioc_events_next(zfs_cmd_t
*zc
)
4873 nvlist_t
*event
= NULL
;
4875 uint64_t dropped
= 0;
4878 error
= zfs_zevent_fd_hold(zc
->zc_cleanup_fd
, &minor
, &ze
);
4883 error
= zfs_zevent_next(ze
, &event
,
4884 &zc
->zc_nvlist_dst_size
, &dropped
);
4885 if (event
!= NULL
) {
4886 zc
->zc_cookie
= dropped
;
4887 error
= put_nvlist(zc
, event
);
4891 if (zc
->zc_guid
& ZEVENT_NONBLOCK
)
4894 if ((error
== 0) || (error
!= ENOENT
))
4897 error
= zfs_zevent_wait(ze
);
4902 zfs_zevent_fd_rele(zc
->zc_cleanup_fd
);
4909 * zc_cookie cleared events count
4912 zfs_ioc_events_clear(zfs_cmd_t
*zc
)
4916 zfs_zevent_drain_all(&count
);
4917 zc
->zc_cookie
= count
;
4924 * zc_guid eid | ZEVENT_SEEK_START | ZEVENT_SEEK_END
4925 * zc_cleanup zevent file descriptor
4928 zfs_ioc_events_seek(zfs_cmd_t
*zc
)
4934 error
= zfs_zevent_fd_hold(zc
->zc_cleanup_fd
, &minor
, &ze
);
4938 error
= zfs_zevent_seek(ze
, zc
->zc_guid
);
4939 zfs_zevent_fd_rele(zc
->zc_cleanup_fd
);
4946 * zc_name name of new filesystem or snapshot
4947 * zc_value full name of old snapshot
4950 * zc_cookie space in bytes
4951 * zc_objset_type compressed space in bytes
4952 * zc_perm_action uncompressed space in bytes
4955 zfs_ioc_space_written(zfs_cmd_t
*zc
)
4959 dsl_dataset_t
*new, *old
;
4961 error
= dsl_pool_hold(zc
->zc_name
, FTAG
, &dp
);
4964 error
= dsl_dataset_hold(dp
, zc
->zc_name
, FTAG
, &new);
4966 dsl_pool_rele(dp
, FTAG
);
4969 error
= dsl_dataset_hold(dp
, zc
->zc_value
, FTAG
, &old
);
4971 dsl_dataset_rele(new, FTAG
);
4972 dsl_pool_rele(dp
, FTAG
);
4976 error
= dsl_dataset_space_written(old
, new, &zc
->zc_cookie
,
4977 &zc
->zc_objset_type
, &zc
->zc_perm_action
);
4978 dsl_dataset_rele(old
, FTAG
);
4979 dsl_dataset_rele(new, FTAG
);
4980 dsl_pool_rele(dp
, FTAG
);
4986 * "firstsnap" -> snapshot name
4990 * "used" -> space in bytes
4991 * "compressed" -> compressed space in bytes
4992 * "uncompressed" -> uncompressed space in bytes
4996 zfs_ioc_space_snaps(const char *lastsnap
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
5000 dsl_dataset_t
*new, *old
;
5002 uint64_t used
, comp
, uncomp
;
5004 if (nvlist_lookup_string(innvl
, "firstsnap", &firstsnap
) != 0)
5005 return (SET_ERROR(EINVAL
));
5007 error
= dsl_pool_hold(lastsnap
, FTAG
, &dp
);
5011 error
= dsl_dataset_hold(dp
, lastsnap
, FTAG
, &new);
5013 dsl_pool_rele(dp
, FTAG
);
5016 error
= dsl_dataset_hold(dp
, firstsnap
, FTAG
, &old
);
5018 dsl_dataset_rele(new, FTAG
);
5019 dsl_pool_rele(dp
, FTAG
);
5023 error
= dsl_dataset_space_wouldfree(old
, new, &used
, &comp
, &uncomp
);
5024 dsl_dataset_rele(old
, FTAG
);
5025 dsl_dataset_rele(new, FTAG
);
5026 dsl_pool_rele(dp
, FTAG
);
5027 fnvlist_add_uint64(outnvl
, "used", used
);
5028 fnvlist_add_uint64(outnvl
, "compressed", comp
);
5029 fnvlist_add_uint64(outnvl
, "uncompressed", uncomp
);
5035 * "fd" -> file descriptor to write stream to (int32)
5036 * (optional) "fromsnap" -> full snap name to send an incremental from
5043 zfs_ioc_send_new(const char *snapname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
5047 char *fromname
= NULL
;
5051 error
= nvlist_lookup_int32(innvl
, "fd", &fd
);
5053 return (SET_ERROR(EINVAL
));
5055 (void) nvlist_lookup_string(innvl
, "fromsnap", &fromname
);
5057 if ((fp
= getf(fd
)) == NULL
)
5058 return (SET_ERROR(EBADF
));
5061 error
= dmu_send(snapname
, fromname
, fd
, fp
->f_vnode
, &off
);
5063 if (VOP_SEEK(fp
->f_vnode
, fp
->f_offset
, &off
, NULL
) == 0)
5071 * Determine approximately how large a zfs send stream will be -- the number
5072 * of bytes that will be written to the fd supplied to zfs_ioc_send_new().
5075 * (optional) "fromsnap" -> full snap name to send an incremental from
5079 * "space" -> bytes of space (uint64)
5083 zfs_ioc_send_space(const char *snapname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
5086 dsl_dataset_t
*fromsnap
= NULL
;
5087 dsl_dataset_t
*tosnap
;
5092 error
= dsl_pool_hold(snapname
, FTAG
, &dp
);
5096 error
= dsl_dataset_hold(dp
, snapname
, FTAG
, &tosnap
);
5098 dsl_pool_rele(dp
, FTAG
);
5102 error
= nvlist_lookup_string(innvl
, "fromsnap", &fromname
);
5104 error
= dsl_dataset_hold(dp
, fromname
, FTAG
, &fromsnap
);
5106 dsl_dataset_rele(tosnap
, FTAG
);
5107 dsl_pool_rele(dp
, FTAG
);
5112 error
= dmu_send_estimate(tosnap
, fromsnap
, &space
);
5113 fnvlist_add_uint64(outnvl
, "space", space
);
5115 if (fromsnap
!= NULL
)
5116 dsl_dataset_rele(fromsnap
, FTAG
);
5117 dsl_dataset_rele(tosnap
, FTAG
);
5118 dsl_pool_rele(dp
, FTAG
);
5123 static zfs_ioc_vec_t zfs_ioc_vec
[ZFS_IOC_LAST
- ZFS_IOC_FIRST
];
5126 zfs_ioctl_register_legacy(zfs_ioc_t ioc
, zfs_ioc_legacy_func_t
*func
,
5127 zfs_secpolicy_func_t
*secpolicy
, zfs_ioc_namecheck_t namecheck
,
5128 boolean_t log_history
, zfs_ioc_poolcheck_t pool_check
)
5130 zfs_ioc_vec_t
*vec
= &zfs_ioc_vec
[ioc
- ZFS_IOC_FIRST
];
5132 ASSERT3U(ioc
, >=, ZFS_IOC_FIRST
);
5133 ASSERT3U(ioc
, <, ZFS_IOC_LAST
);
5134 ASSERT3P(vec
->zvec_legacy_func
, ==, NULL
);
5135 ASSERT3P(vec
->zvec_func
, ==, NULL
);
5137 vec
->zvec_legacy_func
= func
;
5138 vec
->zvec_secpolicy
= secpolicy
;
5139 vec
->zvec_namecheck
= namecheck
;
5140 vec
->zvec_allow_log
= log_history
;
5141 vec
->zvec_pool_check
= pool_check
;
5145 * See the block comment at the beginning of this file for details on
5146 * each argument to this function.
5149 zfs_ioctl_register(const char *name
, zfs_ioc_t ioc
, zfs_ioc_func_t
*func
,
5150 zfs_secpolicy_func_t
*secpolicy
, zfs_ioc_namecheck_t namecheck
,
5151 zfs_ioc_poolcheck_t pool_check
, boolean_t smush_outnvlist
,
5152 boolean_t allow_log
)
5154 zfs_ioc_vec_t
*vec
= &zfs_ioc_vec
[ioc
- ZFS_IOC_FIRST
];
5156 ASSERT3U(ioc
, >=, ZFS_IOC_FIRST
);
5157 ASSERT3U(ioc
, <, ZFS_IOC_LAST
);
5158 ASSERT3P(vec
->zvec_legacy_func
, ==, NULL
);
5159 ASSERT3P(vec
->zvec_func
, ==, NULL
);
5161 /* if we are logging, the name must be valid */
5162 ASSERT(!allow_log
|| namecheck
!= NO_NAME
);
5164 vec
->zvec_name
= name
;
5165 vec
->zvec_func
= func
;
5166 vec
->zvec_secpolicy
= secpolicy
;
5167 vec
->zvec_namecheck
= namecheck
;
5168 vec
->zvec_pool_check
= pool_check
;
5169 vec
->zvec_smush_outnvlist
= smush_outnvlist
;
5170 vec
->zvec_allow_log
= allow_log
;
5174 zfs_ioctl_register_pool(zfs_ioc_t ioc
, zfs_ioc_legacy_func_t
*func
,
5175 zfs_secpolicy_func_t
*secpolicy
, boolean_t log_history
,
5176 zfs_ioc_poolcheck_t pool_check
)
5178 zfs_ioctl_register_legacy(ioc
, func
, secpolicy
,
5179 POOL_NAME
, log_history
, pool_check
);
5183 zfs_ioctl_register_dataset_nolog(zfs_ioc_t ioc
, zfs_ioc_legacy_func_t
*func
,
5184 zfs_secpolicy_func_t
*secpolicy
, zfs_ioc_poolcheck_t pool_check
)
5186 zfs_ioctl_register_legacy(ioc
, func
, secpolicy
,
5187 DATASET_NAME
, B_FALSE
, pool_check
);
5191 zfs_ioctl_register_pool_modify(zfs_ioc_t ioc
, zfs_ioc_legacy_func_t
*func
)
5193 zfs_ioctl_register_legacy(ioc
, func
, zfs_secpolicy_config
,
5194 POOL_NAME
, B_TRUE
, POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
);
5198 zfs_ioctl_register_pool_meta(zfs_ioc_t ioc
, zfs_ioc_legacy_func_t
*func
,
5199 zfs_secpolicy_func_t
*secpolicy
)
5201 zfs_ioctl_register_legacy(ioc
, func
, secpolicy
,
5202 NO_NAME
, B_FALSE
, POOL_CHECK_NONE
);
5206 zfs_ioctl_register_dataset_read_secpolicy(zfs_ioc_t ioc
,
5207 zfs_ioc_legacy_func_t
*func
, zfs_secpolicy_func_t
*secpolicy
)
5209 zfs_ioctl_register_legacy(ioc
, func
, secpolicy
,
5210 DATASET_NAME
, B_FALSE
, POOL_CHECK_SUSPENDED
);
5214 zfs_ioctl_register_dataset_read(zfs_ioc_t ioc
, zfs_ioc_legacy_func_t
*func
)
5216 zfs_ioctl_register_dataset_read_secpolicy(ioc
, func
,
5217 zfs_secpolicy_read
);
5221 zfs_ioctl_register_dataset_modify(zfs_ioc_t ioc
, zfs_ioc_legacy_func_t
*func
,
5222 zfs_secpolicy_func_t
*secpolicy
)
5224 zfs_ioctl_register_legacy(ioc
, func
, secpolicy
,
5225 DATASET_NAME
, B_TRUE
, POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
);
5229 zfs_ioctl_init(void)
5231 zfs_ioctl_register("snapshot", ZFS_IOC_SNAPSHOT
,
5232 zfs_ioc_snapshot
, zfs_secpolicy_snapshot
, POOL_NAME
,
5233 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5235 zfs_ioctl_register("log_history", ZFS_IOC_LOG_HISTORY
,
5236 zfs_ioc_log_history
, zfs_secpolicy_log_history
, NO_NAME
,
5237 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_FALSE
, B_FALSE
);
5239 zfs_ioctl_register("space_snaps", ZFS_IOC_SPACE_SNAPS
,
5240 zfs_ioc_space_snaps
, zfs_secpolicy_read
, DATASET_NAME
,
5241 POOL_CHECK_SUSPENDED
, B_FALSE
, B_FALSE
);
5243 zfs_ioctl_register("send", ZFS_IOC_SEND_NEW
,
5244 zfs_ioc_send_new
, zfs_secpolicy_send_new
, DATASET_NAME
,
5245 POOL_CHECK_SUSPENDED
, B_FALSE
, B_FALSE
);
5247 zfs_ioctl_register("send_space", ZFS_IOC_SEND_SPACE
,
5248 zfs_ioc_send_space
, zfs_secpolicy_read
, DATASET_NAME
,
5249 POOL_CHECK_SUSPENDED
, B_FALSE
, B_FALSE
);
5251 zfs_ioctl_register("create", ZFS_IOC_CREATE
,
5252 zfs_ioc_create
, zfs_secpolicy_create_clone
, DATASET_NAME
,
5253 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5255 zfs_ioctl_register("clone", ZFS_IOC_CLONE
,
5256 zfs_ioc_clone
, zfs_secpolicy_create_clone
, DATASET_NAME
,
5257 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5259 zfs_ioctl_register("destroy_snaps", ZFS_IOC_DESTROY_SNAPS
,
5260 zfs_ioc_destroy_snaps
, zfs_secpolicy_destroy_snaps
, POOL_NAME
,
5261 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5263 zfs_ioctl_register("hold", ZFS_IOC_HOLD
,
5264 zfs_ioc_hold
, zfs_secpolicy_hold
, POOL_NAME
,
5265 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5266 zfs_ioctl_register("release", ZFS_IOC_RELEASE
,
5267 zfs_ioc_release
, zfs_secpolicy_release
, POOL_NAME
,
5268 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5270 zfs_ioctl_register("get_holds", ZFS_IOC_GET_HOLDS
,
5271 zfs_ioc_get_holds
, zfs_secpolicy_read
, DATASET_NAME
,
5272 POOL_CHECK_SUSPENDED
, B_FALSE
, B_FALSE
);
5274 zfs_ioctl_register("rollback", ZFS_IOC_ROLLBACK
,
5275 zfs_ioc_rollback
, zfs_secpolicy_rollback
, DATASET_NAME
,
5276 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_FALSE
, B_TRUE
);
5278 /* IOCTLS that use the legacy function signature */
5280 zfs_ioctl_register_legacy(ZFS_IOC_POOL_FREEZE
, zfs_ioc_pool_freeze
,
5281 zfs_secpolicy_config
, NO_NAME
, B_FALSE
, POOL_CHECK_READONLY
);
5283 zfs_ioctl_register_pool(ZFS_IOC_POOL_CREATE
, zfs_ioc_pool_create
,
5284 zfs_secpolicy_config
, B_TRUE
, POOL_CHECK_NONE
);
5285 zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_SCAN
,
5287 zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_UPGRADE
,
5288 zfs_ioc_pool_upgrade
);
5289 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_ADD
,
5291 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_REMOVE
,
5292 zfs_ioc_vdev_remove
);
5293 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SET_STATE
,
5294 zfs_ioc_vdev_set_state
);
5295 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_ATTACH
,
5296 zfs_ioc_vdev_attach
);
5297 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_DETACH
,
5298 zfs_ioc_vdev_detach
);
5299 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SETPATH
,
5300 zfs_ioc_vdev_setpath
);
5301 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SETFRU
,
5302 zfs_ioc_vdev_setfru
);
5303 zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_SET_PROPS
,
5304 zfs_ioc_pool_set_props
);
5305 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SPLIT
,
5306 zfs_ioc_vdev_split
);
5307 zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_REGUID
,
5308 zfs_ioc_pool_reguid
);
5310 zfs_ioctl_register_pool_meta(ZFS_IOC_POOL_CONFIGS
,
5311 zfs_ioc_pool_configs
, zfs_secpolicy_none
);
5312 zfs_ioctl_register_pool_meta(ZFS_IOC_POOL_TRYIMPORT
,
5313 zfs_ioc_pool_tryimport
, zfs_secpolicy_config
);
5314 zfs_ioctl_register_pool_meta(ZFS_IOC_INJECT_FAULT
,
5315 zfs_ioc_inject_fault
, zfs_secpolicy_inject
);
5316 zfs_ioctl_register_pool_meta(ZFS_IOC_CLEAR_FAULT
,
5317 zfs_ioc_clear_fault
, zfs_secpolicy_inject
);
5318 zfs_ioctl_register_pool_meta(ZFS_IOC_INJECT_LIST_NEXT
,
5319 zfs_ioc_inject_list_next
, zfs_secpolicy_inject
);
5322 * pool destroy, and export don't log the history as part of
5323 * zfsdev_ioctl, but rather zfs_ioc_pool_export
5324 * does the logging of those commands.
5326 zfs_ioctl_register_pool(ZFS_IOC_POOL_DESTROY
, zfs_ioc_pool_destroy
,
5327 zfs_secpolicy_config
, B_FALSE
, POOL_CHECK_NONE
);
5328 zfs_ioctl_register_pool(ZFS_IOC_POOL_EXPORT
, zfs_ioc_pool_export
,
5329 zfs_secpolicy_config
, B_FALSE
, POOL_CHECK_NONE
);
5331 zfs_ioctl_register_pool(ZFS_IOC_POOL_STATS
, zfs_ioc_pool_stats
,
5332 zfs_secpolicy_read
, B_FALSE
, POOL_CHECK_NONE
);
5333 zfs_ioctl_register_pool(ZFS_IOC_POOL_GET_PROPS
, zfs_ioc_pool_get_props
,
5334 zfs_secpolicy_read
, B_FALSE
, POOL_CHECK_NONE
);
5336 zfs_ioctl_register_pool(ZFS_IOC_ERROR_LOG
, zfs_ioc_error_log
,
5337 zfs_secpolicy_inject
, B_FALSE
, POOL_CHECK_SUSPENDED
);
5338 zfs_ioctl_register_pool(ZFS_IOC_DSOBJ_TO_DSNAME
,
5339 zfs_ioc_dsobj_to_dsname
,
5340 zfs_secpolicy_diff
, B_FALSE
, POOL_CHECK_SUSPENDED
);
5341 zfs_ioctl_register_pool(ZFS_IOC_POOL_GET_HISTORY
,
5342 zfs_ioc_pool_get_history
,
5343 zfs_secpolicy_config
, B_FALSE
, POOL_CHECK_SUSPENDED
);
5345 zfs_ioctl_register_pool(ZFS_IOC_POOL_IMPORT
, zfs_ioc_pool_import
,
5346 zfs_secpolicy_config
, B_TRUE
, POOL_CHECK_NONE
);
5348 zfs_ioctl_register_pool(ZFS_IOC_CLEAR
, zfs_ioc_clear
,
5349 zfs_secpolicy_config
, B_TRUE
, POOL_CHECK_NONE
);
5350 zfs_ioctl_register_pool(ZFS_IOC_POOL_REOPEN
, zfs_ioc_pool_reopen
,
5351 zfs_secpolicy_config
, B_TRUE
, POOL_CHECK_SUSPENDED
);
5353 zfs_ioctl_register_dataset_read(ZFS_IOC_SPACE_WRITTEN
,
5354 zfs_ioc_space_written
);
5355 zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_RECVD_PROPS
,
5356 zfs_ioc_objset_recvd_props
);
5357 zfs_ioctl_register_dataset_read(ZFS_IOC_NEXT_OBJ
,
5359 zfs_ioctl_register_dataset_read(ZFS_IOC_GET_FSACL
,
5361 zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_STATS
,
5362 zfs_ioc_objset_stats
);
5363 zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_ZPLPROPS
,
5364 zfs_ioc_objset_zplprops
);
5365 zfs_ioctl_register_dataset_read(ZFS_IOC_DATASET_LIST_NEXT
,
5366 zfs_ioc_dataset_list_next
);
5367 zfs_ioctl_register_dataset_read(ZFS_IOC_SNAPSHOT_LIST_NEXT
,
5368 zfs_ioc_snapshot_list_next
);
5369 zfs_ioctl_register_dataset_read(ZFS_IOC_SEND_PROGRESS
,
5370 zfs_ioc_send_progress
);
5372 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_DIFF
,
5373 zfs_ioc_diff
, zfs_secpolicy_diff
);
5374 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_OBJ_TO_STATS
,
5375 zfs_ioc_obj_to_stats
, zfs_secpolicy_diff
);
5376 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_OBJ_TO_PATH
,
5377 zfs_ioc_obj_to_path
, zfs_secpolicy_diff
);
5378 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_USERSPACE_ONE
,
5379 zfs_ioc_userspace_one
, zfs_secpolicy_userspace_one
);
5380 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_USERSPACE_MANY
,
5381 zfs_ioc_userspace_many
, zfs_secpolicy_userspace_many
);
5382 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_SEND
,
5383 zfs_ioc_send
, zfs_secpolicy_send
);
5385 zfs_ioctl_register_dataset_modify(ZFS_IOC_SET_PROP
, zfs_ioc_set_prop
,
5386 zfs_secpolicy_none
);
5387 zfs_ioctl_register_dataset_modify(ZFS_IOC_DESTROY
, zfs_ioc_destroy
,
5388 zfs_secpolicy_destroy
);
5389 zfs_ioctl_register_dataset_modify(ZFS_IOC_RENAME
, zfs_ioc_rename
,
5390 zfs_secpolicy_rename
);
5391 zfs_ioctl_register_dataset_modify(ZFS_IOC_RECV
, zfs_ioc_recv
,
5392 zfs_secpolicy_recv
);
5393 zfs_ioctl_register_dataset_modify(ZFS_IOC_PROMOTE
, zfs_ioc_promote
,
5394 zfs_secpolicy_promote
);
5395 zfs_ioctl_register_dataset_modify(ZFS_IOC_INHERIT_PROP
,
5396 zfs_ioc_inherit_prop
, zfs_secpolicy_inherit_prop
);
5397 zfs_ioctl_register_dataset_modify(ZFS_IOC_SET_FSACL
, zfs_ioc_set_fsacl
,
5398 zfs_secpolicy_set_fsacl
);
5400 zfs_ioctl_register_dataset_nolog(ZFS_IOC_SHARE
, zfs_ioc_share
,
5401 zfs_secpolicy_share
, POOL_CHECK_NONE
);
5402 zfs_ioctl_register_dataset_nolog(ZFS_IOC_SMB_ACL
, zfs_ioc_smb_acl
,
5403 zfs_secpolicy_smb_acl
, POOL_CHECK_NONE
);
5404 zfs_ioctl_register_dataset_nolog(ZFS_IOC_USERSPACE_UPGRADE
,
5405 zfs_ioc_userspace_upgrade
, zfs_secpolicy_userspace_upgrade
,
5406 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
);
5407 zfs_ioctl_register_dataset_nolog(ZFS_IOC_TMP_SNAPSHOT
,
5408 zfs_ioc_tmp_snapshot
, zfs_secpolicy_tmp_snapshot
,
5409 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
);
5414 zfs_ioctl_register_legacy(ZFS_IOC_EVENTS_NEXT
, zfs_ioc_events_next
,
5415 zfs_secpolicy_config
, NO_NAME
, B_FALSE
, POOL_CHECK_NONE
);
5416 zfs_ioctl_register_legacy(ZFS_IOC_EVENTS_CLEAR
, zfs_ioc_events_clear
,
5417 zfs_secpolicy_config
, NO_NAME
, B_FALSE
, POOL_CHECK_NONE
);
5418 zfs_ioctl_register_legacy(ZFS_IOC_EVENTS_SEEK
, zfs_ioc_events_seek
,
5419 zfs_secpolicy_config
, NO_NAME
, B_FALSE
, POOL_CHECK_NONE
);
5423 pool_status_check(const char *name
, zfs_ioc_namecheck_t type
,
5424 zfs_ioc_poolcheck_t check
)
5429 ASSERT(type
== POOL_NAME
|| type
== DATASET_NAME
);
5431 if (check
& POOL_CHECK_NONE
)
5434 error
= spa_open(name
, &spa
, FTAG
);
5436 if ((check
& POOL_CHECK_SUSPENDED
) && spa_suspended(spa
))
5437 error
= SET_ERROR(EAGAIN
);
5438 else if ((check
& POOL_CHECK_READONLY
) && !spa_writeable(spa
))
5439 error
= SET_ERROR(EROFS
);
5440 spa_close(spa
, FTAG
);
5446 zfsdev_get_state_impl(minor_t minor
, enum zfsdev_state_type which
)
5450 ASSERT(MUTEX_HELD(&zfsdev_state_lock
));
5452 for (zs
= list_head(&zfsdev_state_list
); zs
!= NULL
;
5453 zs
= list_next(&zfsdev_state_list
, zs
)) {
5454 if (zs
->zs_minor
== minor
) {
5457 return (zs
->zs_onexit
);
5459 return (zs
->zs_zevent
);
5470 zfsdev_get_state(minor_t minor
, enum zfsdev_state_type which
)
5474 mutex_enter(&zfsdev_state_lock
);
5475 ptr
= zfsdev_get_state_impl(minor
, which
);
5476 mutex_exit(&zfsdev_state_lock
);
5482 zfsdev_getminor(struct file
*filp
)
5484 ASSERT(filp
!= NULL
);
5485 ASSERT(filp
->private_data
!= NULL
);
5487 return (((zfsdev_state_t
*)filp
->private_data
)->zs_minor
);
5491 * Find a free minor number. The zfsdev_state_list is expected to
5492 * be short since it is only a list of currently open file handles.
5495 zfsdev_minor_alloc(void)
5497 static minor_t last_minor
= 0;
5500 ASSERT(MUTEX_HELD(&zfsdev_state_lock
));
5502 for (m
= last_minor
+ 1; m
!= last_minor
; m
++) {
5503 if (m
> ZFSDEV_MAX_MINOR
)
5505 if (zfsdev_get_state_impl(m
, ZST_ALL
) == NULL
) {
5515 zfsdev_state_init(struct file
*filp
)
5520 ASSERT(MUTEX_HELD(&zfsdev_state_lock
));
5522 minor
= zfsdev_minor_alloc();
5524 return (SET_ERROR(ENXIO
));
5526 zs
= kmem_zalloc(sizeof (zfsdev_state_t
), KM_SLEEP
);
5529 zs
->zs_minor
= minor
;
5530 filp
->private_data
= zs
;
5532 zfs_onexit_init((zfs_onexit_t
**)&zs
->zs_onexit
);
5533 zfs_zevent_init((zfs_zevent_t
**)&zs
->zs_zevent
);
5535 list_insert_tail(&zfsdev_state_list
, zs
);
5541 zfsdev_state_destroy(struct file
*filp
)
5545 ASSERT(MUTEX_HELD(&zfsdev_state_lock
));
5546 ASSERT(filp
->private_data
!= NULL
);
5548 zs
= filp
->private_data
;
5549 zfs_onexit_destroy(zs
->zs_onexit
);
5550 zfs_zevent_destroy(zs
->zs_zevent
);
5552 list_remove(&zfsdev_state_list
, zs
);
5553 kmem_free(zs
, sizeof (zfsdev_state_t
));
5559 zfsdev_open(struct inode
*ino
, struct file
*filp
)
5563 mutex_enter(&zfsdev_state_lock
);
5564 error
= zfsdev_state_init(filp
);
5565 mutex_exit(&zfsdev_state_lock
);
5571 zfsdev_release(struct inode
*ino
, struct file
*filp
)
5575 mutex_enter(&zfsdev_state_lock
);
5576 error
= zfsdev_state_destroy(filp
);
5577 mutex_exit(&zfsdev_state_lock
);
5583 zfsdev_ioctl(struct file
*filp
, unsigned cmd
, unsigned long arg
)
5587 int error
, rc
, flag
= 0;
5588 const zfs_ioc_vec_t
*vec
;
5589 char *saved_poolname
= NULL
;
5590 nvlist_t
*innvl
= NULL
;
5592 vecnum
= cmd
- ZFS_IOC_FIRST
;
5593 if (vecnum
>= sizeof (zfs_ioc_vec
) / sizeof (zfs_ioc_vec
[0]))
5594 return (-SET_ERROR(EINVAL
));
5595 vec
= &zfs_ioc_vec
[vecnum
];
5598 * The registered ioctl list may be sparse, verify that either
5599 * a normal or legacy handler are registered.
5601 if (vec
->zvec_func
== NULL
&& vec
->zvec_legacy_func
== NULL
)
5602 return (-SET_ERROR(EINVAL
));
5604 zc
= kmem_zalloc(sizeof (zfs_cmd_t
), KM_SLEEP
| KM_NODEBUG
);
5606 error
= ddi_copyin((void *)arg
, zc
, sizeof (zfs_cmd_t
), flag
);
5608 error
= SET_ERROR(EFAULT
);
5612 zc
->zc_iflags
= flag
& FKIOCTL
;
5613 if (zc
->zc_nvlist_src_size
!= 0) {
5614 error
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
5615 zc
->zc_iflags
, &innvl
);
5621 * Ensure that all pool/dataset names are valid before we pass down to
5624 zc
->zc_name
[sizeof (zc
->zc_name
) - 1] = '\0';
5625 switch (vec
->zvec_namecheck
) {
5627 if (pool_namecheck(zc
->zc_name
, NULL
, NULL
) != 0)
5628 error
= SET_ERROR(EINVAL
);
5630 error
= pool_status_check(zc
->zc_name
,
5631 vec
->zvec_namecheck
, vec
->zvec_pool_check
);
5635 if (dataset_namecheck(zc
->zc_name
, NULL
, NULL
) != 0)
5636 error
= SET_ERROR(EINVAL
);
5638 error
= pool_status_check(zc
->zc_name
,
5639 vec
->zvec_namecheck
, vec
->zvec_pool_check
);
5647 if (error
== 0 && !(flag
& FKIOCTL
))
5648 error
= vec
->zvec_secpolicy(zc
, innvl
, CRED());
5653 /* legacy ioctls can modify zc_name */
5654 saved_poolname
= strdup(zc
->zc_name
);
5655 if (saved_poolname
== NULL
) {
5656 error
= SET_ERROR(ENOMEM
);
5659 saved_poolname
[strcspn(saved_poolname
, "/@#")] = '\0';
5662 if (vec
->zvec_func
!= NULL
) {
5666 nvlist_t
*lognv
= NULL
;
5668 ASSERT(vec
->zvec_legacy_func
== NULL
);
5671 * Add the innvl to the lognv before calling the func,
5672 * in case the func changes the innvl.
5674 if (vec
->zvec_allow_log
) {
5675 lognv
= fnvlist_alloc();
5676 fnvlist_add_string(lognv
, ZPOOL_HIST_IOCTL
,
5678 if (!nvlist_empty(innvl
)) {
5679 fnvlist_add_nvlist(lognv
, ZPOOL_HIST_INPUT_NVL
,
5684 VERIFY0(nvlist_alloc(&outnvl
, NV_UNIQUE_NAME
, KM_PUSHPAGE
));
5685 error
= vec
->zvec_func(zc
->zc_name
, innvl
, outnvl
);
5687 if (error
== 0 && vec
->zvec_allow_log
&&
5688 spa_open(zc
->zc_name
, &spa
, FTAG
) == 0) {
5689 if (!nvlist_empty(outnvl
)) {
5690 fnvlist_add_nvlist(lognv
, ZPOOL_HIST_OUTPUT_NVL
,
5693 (void) spa_history_log_nvl(spa
, lognv
);
5694 spa_close(spa
, FTAG
);
5696 fnvlist_free(lognv
);
5698 if (!nvlist_empty(outnvl
) || zc
->zc_nvlist_dst_size
!= 0) {
5700 if (vec
->zvec_smush_outnvlist
) {
5701 smusherror
= nvlist_smush(outnvl
,
5702 zc
->zc_nvlist_dst_size
);
5704 if (smusherror
== 0)
5705 puterror
= put_nvlist(zc
, outnvl
);
5711 nvlist_free(outnvl
);
5713 error
= vec
->zvec_legacy_func(zc
);
5718 rc
= ddi_copyout(zc
, (void *)arg
, sizeof (zfs_cmd_t
), flag
);
5719 if (error
== 0 && rc
!= 0)
5720 error
= SET_ERROR(EFAULT
);
5721 if (error
== 0 && vec
->zvec_allow_log
) {
5722 char *s
= tsd_get(zfs_allow_log_key
);
5725 (void) tsd_set(zfs_allow_log_key
, saved_poolname
);
5727 if (saved_poolname
!= NULL
)
5728 strfree(saved_poolname
);
5731 kmem_free(zc
, sizeof (zfs_cmd_t
));
5735 #ifdef CONFIG_COMPAT
5737 zfsdev_compat_ioctl(struct file
*filp
, unsigned cmd
, unsigned long arg
)
5739 return (zfsdev_ioctl(filp
, cmd
, arg
));
5742 #define zfsdev_compat_ioctl NULL
5745 static const struct file_operations zfsdev_fops
= {
5746 .open
= zfsdev_open
,
5747 .release
= zfsdev_release
,
5748 .unlocked_ioctl
= zfsdev_ioctl
,
5749 .compat_ioctl
= zfsdev_compat_ioctl
,
5750 .owner
= THIS_MODULE
,
5753 static struct miscdevice zfs_misc
= {
5754 .minor
= MISC_DYNAMIC_MINOR
,
5756 .fops
= &zfsdev_fops
,
5764 mutex_init(&zfsdev_state_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
5765 list_create(&zfsdev_state_list
, sizeof (zfsdev_state_t
),
5766 offsetof(zfsdev_state_t
, zs_next
));
5768 error
= misc_register(&zfs_misc
);
5770 printk(KERN_INFO
"ZFS: misc_register() failed %d\n", error
);
5782 error
= misc_deregister(&zfs_misc
);
5784 printk(KERN_INFO
"ZFS: misc_deregister() failed %d\n", error
);
5786 mutex_destroy(&zfsdev_state_lock
);
5787 list_destroy(&zfsdev_state_list
);
5791 zfs_allow_log_destroy(void *arg
)
5793 char *poolname
= arg
;
5798 #define ZFS_DEBUG_STR " (DEBUG mode)"
5800 #define ZFS_DEBUG_STR ""
5808 spa_init(FREAD
| FWRITE
);
5811 if ((error
= zvol_init()) != 0)
5816 if ((error
= zfs_attach()) != 0)
5819 tsd_create(&zfs_fsyncer_key
, NULL
);
5820 tsd_create(&rrw_tsd_key
, rrw_tsd_destroy
);
5821 tsd_create(&zfs_allow_log_key
, zfs_allow_log_destroy
);
5823 printk(KERN_NOTICE
"ZFS: Loaded module v%s-%s%s, "
5824 "ZFS pool version %s, ZFS filesystem version %s\n",
5825 ZFS_META_VERSION
, ZFS_META_RELEASE
, ZFS_DEBUG_STR
,
5826 SPA_VERSION_STRING
, ZPL_VERSION_STRING
);
5827 #ifndef CONFIG_FS_POSIX_ACL
5828 printk(KERN_NOTICE
"ZFS: Posix ACLs disabled by kernel\n");
5829 #endif /* CONFIG_FS_POSIX_ACL */
5838 printk(KERN_NOTICE
"ZFS: Failed to Load ZFS Filesystem v%s-%s%s"
5839 ", rc = %d\n", ZFS_META_VERSION
, ZFS_META_RELEASE
,
5840 ZFS_DEBUG_STR
, error
);
5853 tsd_destroy(&zfs_fsyncer_key
);
5854 tsd_destroy(&rrw_tsd_key
);
5855 tsd_destroy(&zfs_allow_log_key
);
5857 printk(KERN_NOTICE
"ZFS: Unloaded module v%s-%s%s\n",
5858 ZFS_META_VERSION
, ZFS_META_RELEASE
, ZFS_DEBUG_STR
);
5864 spl_module_init(_init
);
5865 spl_module_exit(_fini
);
5867 MODULE_DESCRIPTION("ZFS");
5868 MODULE_AUTHOR(ZFS_META_AUTHOR
);
5869 MODULE_LICENSE(ZFS_META_LICENSE
);
5870 MODULE_VERSION(ZFS_META_VERSION
"-" ZFS_META_RELEASE
);
5871 #endif /* HAVE_SPL */