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]
22 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
23 * Portions Copyright 2011 Martin Matuska
24 * Portions Copyright 2012 Pawel Jakub Dawidek <pawel@dawidek.net>
25 * Copyright (c) 2012, Joyent, Inc. All rights reserved.
26 * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
27 * Copyright (c) 2012 by Delphix. All rights reserved.
30 #include <sys/types.h>
31 #include <sys/param.h>
32 #include <sys/errno.h>
35 #include <sys/modctl.h>
40 #include <sys/cmn_err.h>
42 #include <sys/zfs_ioctl.h>
43 #include <sys/zfs_vfsops.h>
44 #include <sys/zfs_znode.h>
47 #include <sys/spa_impl.h>
49 #include <sys/priv_impl.h>
51 #include <sys/dsl_dir.h>
52 #include <sys/dsl_dataset.h>
53 #include <sys/dsl_prop.h>
54 #include <sys/dsl_deleg.h>
55 #include <sys/dmu_objset.h>
57 #include <sys/sunddi.h>
58 #include <sys/sunldi.h>
59 #include <sys/policy.h>
61 #include <sys/nvpair.h>
62 #include <sys/pathname.h>
63 #include <sys/mount.h>
65 #include <sys/fs/zfs.h>
66 #include <sys/zfs_ctldir.h>
67 #include <sys/zfs_dir.h>
68 #include <sys/zfs_onexit.h>
70 #include <sys/dsl_scan.h>
71 #include <sharefs/share.h>
72 #include <sys/dmu_objset.h>
73 #include <sys/fm/util.h>
75 #include <linux/miscdevice.h>
77 #include "zfs_namecheck.h"
79 #include "zfs_deleg.h"
80 #include "zfs_comutil.h"
82 kmutex_t zfsdev_state_lock
;
83 list_t zfsdev_state_list
;
85 extern void zfs_init(void);
86 extern void zfs_fini(void);
88 typedef int zfs_ioc_func_t(zfs_cmd_t
*);
89 typedef int zfs_secpolicy_func_t(zfs_cmd_t
*, cred_t
*);
95 } zfs_ioc_namecheck_t
;
98 POOL_CHECK_NONE
= 1 << 0,
99 POOL_CHECK_SUSPENDED
= 1 << 1,
100 POOL_CHECK_READONLY
= 1 << 2
101 } zfs_ioc_poolcheck_t
;
103 typedef struct zfs_ioc_vec
{
104 zfs_ioc_func_t
*zvec_func
;
105 zfs_secpolicy_func_t
*zvec_secpolicy
;
106 zfs_ioc_namecheck_t zvec_namecheck
;
107 boolean_t zvec_his_log
;
108 zfs_ioc_poolcheck_t zvec_pool_check
;
111 /* This array is indexed by zfs_userquota_prop_t */
112 static const char *userquota_perms
[] = {
113 ZFS_DELEG_PERM_USERUSED
,
114 ZFS_DELEG_PERM_USERQUOTA
,
115 ZFS_DELEG_PERM_GROUPUSED
,
116 ZFS_DELEG_PERM_GROUPQUOTA
,
119 static int zfs_ioc_userspace_upgrade(zfs_cmd_t
*zc
);
120 static int zfs_check_settable(const char *name
, nvpair_t
*property
,
122 static int zfs_check_clearable(char *dataset
, nvlist_t
*props
,
124 static int zfs_fill_zplprops_root(uint64_t, nvlist_t
*, nvlist_t
*,
126 int zfs_set_prop_nvlist(const char *, zprop_source_t
, nvlist_t
*, nvlist_t
**);
129 history_str_free(char *buf
)
131 kmem_free(buf
, HIS_MAX_RECORD_LEN
);
135 history_str_get(zfs_cmd_t
*zc
)
139 if (zc
->zc_history
== 0)
142 buf
= kmem_alloc(HIS_MAX_RECORD_LEN
, KM_SLEEP
| KM_NODEBUG
);
143 if (copyinstr((void *)(uintptr_t)zc
->zc_history
,
144 buf
, HIS_MAX_RECORD_LEN
, NULL
) != 0) {
145 history_str_free(buf
);
149 buf
[HIS_MAX_RECORD_LEN
-1] = '\0';
155 * Check to see if the named dataset is currently defined as bootable
158 zfs_is_bootfs(const char *name
)
162 if (dmu_objset_hold(name
, FTAG
, &os
) == 0) {
164 ret
= (dmu_objset_id(os
) == spa_bootfs(dmu_objset_spa(os
)));
165 dmu_objset_rele(os
, FTAG
);
172 * zfs_earlier_version
174 * Return non-zero if the spa version is less than requested version.
177 zfs_earlier_version(const char *name
, int version
)
181 if (spa_open(name
, &spa
, FTAG
) == 0) {
182 if (spa_version(spa
) < version
) {
183 spa_close(spa
, FTAG
);
186 spa_close(spa
, FTAG
);
192 * zpl_earlier_version
194 * Return TRUE if the ZPL version is less than requested version.
197 zpl_earlier_version(const char *name
, int version
)
200 boolean_t rc
= B_TRUE
;
202 if (dmu_objset_hold(name
, FTAG
, &os
) == 0) {
205 if (dmu_objset_type(os
) != DMU_OST_ZFS
) {
206 dmu_objset_rele(os
, FTAG
);
209 /* XXX reading from non-owned objset */
210 if (zfs_get_zplprop(os
, ZFS_PROP_VERSION
, &zplversion
) == 0)
211 rc
= zplversion
< version
;
212 dmu_objset_rele(os
, FTAG
);
218 zfs_log_history(zfs_cmd_t
*zc
)
223 if ((buf
= history_str_get(zc
)) == NULL
)
226 if (spa_open(zc
->zc_name
, &spa
, FTAG
) == 0) {
227 if (spa_version(spa
) >= SPA_VERSION_ZPOOL_HISTORY
)
228 (void) spa_history_log(spa
, buf
, LOG_CMD_NORMAL
);
229 spa_close(spa
, FTAG
);
231 history_str_free(buf
);
235 * Policy for top-level read operations (list pools). Requires no privileges,
236 * and can be used in the local zone, as there is no associated dataset.
240 zfs_secpolicy_none(zfs_cmd_t
*zc
, cred_t
*cr
)
246 * Policy for dataset read operations (list children, get statistics). Requires
247 * no privileges, but must be visible in the local zone.
251 zfs_secpolicy_read(zfs_cmd_t
*zc
, cred_t
*cr
)
253 if (INGLOBALZONE(curproc
) ||
254 zone_dataset_visible(zc
->zc_name
, NULL
))
261 zfs_dozonecheck_impl(const char *dataset
, uint64_t zoned
, cred_t
*cr
)
266 * The dataset must be visible by this zone -- check this first
267 * so they don't see EPERM on something they shouldn't know about.
269 if (!INGLOBALZONE(curproc
) &&
270 !zone_dataset_visible(dataset
, &writable
))
273 if (INGLOBALZONE(curproc
)) {
275 * If the fs is zoned, only root can access it from the
278 if (secpolicy_zfs(cr
) && zoned
)
282 * If we are in a local zone, the 'zoned' property must be set.
287 /* must be writable by this zone */
295 zfs_dozonecheck(const char *dataset
, cred_t
*cr
)
299 if (dsl_prop_get_integer(dataset
, "zoned", &zoned
, NULL
))
302 return (zfs_dozonecheck_impl(dataset
, zoned
, cr
));
306 zfs_dozonecheck_ds(const char *dataset
, dsl_dataset_t
*ds
, cred_t
*cr
)
310 rw_enter(&ds
->ds_dir
->dd_pool
->dp_config_rwlock
, RW_READER
);
311 if (dsl_prop_get_ds(ds
, "zoned", 8, 1, &zoned
, NULL
)) {
312 rw_exit(&ds
->ds_dir
->dd_pool
->dp_config_rwlock
);
315 rw_exit(&ds
->ds_dir
->dd_pool
->dp_config_rwlock
);
317 return (zfs_dozonecheck_impl(dataset
, zoned
, cr
));
321 * If name ends in a '@', then require recursive permissions.
324 zfs_secpolicy_write_perms(const char *name
, const char *perm
, cred_t
*cr
)
327 boolean_t descendent
= B_FALSE
;
331 at
= strchr(name
, '@');
332 if (at
!= NULL
&& at
[1] == '\0') {
337 error
= dsl_dataset_hold(name
, FTAG
, &ds
);
343 error
= zfs_dozonecheck_ds(name
, ds
, cr
);
345 error
= secpolicy_zfs(cr
);
347 error
= dsl_deleg_access_impl(ds
, descendent
, perm
, cr
);
350 dsl_dataset_rele(ds
, FTAG
);
355 zfs_secpolicy_write_perms_ds(const char *name
, dsl_dataset_t
*ds
,
356 const char *perm
, cred_t
*cr
)
360 error
= zfs_dozonecheck_ds(name
, ds
, cr
);
362 error
= secpolicy_zfs(cr
);
364 error
= dsl_deleg_access_impl(ds
, B_FALSE
, perm
, cr
);
370 * Policy for setting the security label property.
372 * Returns 0 for success, non-zero for access and other errors.
375 zfs_set_slabel_policy(const char *name
, char *strval
, cred_t
*cr
)
378 char ds_hexsl
[MAXNAMELEN
];
379 bslabel_t ds_sl
, new_sl
;
380 boolean_t new_default
= FALSE
;
382 int needed_priv
= -1;
385 /* First get the existing dataset label. */
386 error
= dsl_prop_get(name
, zfs_prop_to_name(ZFS_PROP_MLSLABEL
),
387 1, sizeof (ds_hexsl
), &ds_hexsl
, NULL
);
391 if (strcasecmp(strval
, ZFS_MLSLABEL_DEFAULT
) == 0)
394 /* The label must be translatable */
395 if (!new_default
&& (hexstr_to_label(strval
, &new_sl
) != 0))
399 * In a non-global zone, disallow attempts to set a label that
400 * doesn't match that of the zone; otherwise no other checks
403 if (!INGLOBALZONE(curproc
)) {
404 if (new_default
|| !blequal(&new_sl
, CR_SL(CRED())))
410 * For global-zone datasets (i.e., those whose zoned property is
411 * "off", verify that the specified new label is valid for the
414 if (dsl_prop_get_integer(name
,
415 zfs_prop_to_name(ZFS_PROP_ZONED
), &zoned
, NULL
))
418 if (zfs_check_global_label(name
, strval
) != 0)
423 * If the existing dataset label is nondefault, check if the
424 * dataset is mounted (label cannot be changed while mounted).
425 * Get the zfs_sb_t; if there isn't one, then the dataset isn't
426 * mounted (or isn't a dataset, doesn't exist, ...).
428 if (strcasecmp(ds_hexsl
, ZFS_MLSLABEL_DEFAULT
) != 0) {
430 static char *setsl_tag
= "setsl_tag";
433 * Try to own the dataset; abort if there is any error,
434 * (e.g., already mounted, in use, or other error).
436 error
= dmu_objset_own(name
, DMU_OST_ZFS
, B_TRUE
,
441 dmu_objset_disown(os
, setsl_tag
);
444 needed_priv
= PRIV_FILE_DOWNGRADE_SL
;
448 if (hexstr_to_label(strval
, &new_sl
) != 0)
451 if (blstrictdom(&ds_sl
, &new_sl
))
452 needed_priv
= PRIV_FILE_DOWNGRADE_SL
;
453 else if (blstrictdom(&new_sl
, &ds_sl
))
454 needed_priv
= PRIV_FILE_UPGRADE_SL
;
456 /* dataset currently has a default label */
458 needed_priv
= PRIV_FILE_UPGRADE_SL
;
462 if (needed_priv
!= -1)
463 return (PRIV_POLICY(cr
, needed_priv
, B_FALSE
, EPERM
, NULL
));
467 #endif /* HAVE_MLSLABEL */
471 zfs_secpolicy_setprop(const char *dsname
, zfs_prop_t prop
, nvpair_t
*propval
,
477 * Check permissions for special properties.
484 * Disallow setting of 'zoned' from within a local zone.
486 if (!INGLOBALZONE(curproc
))
491 if (!INGLOBALZONE(curproc
)) {
493 char setpoint
[MAXNAMELEN
];
495 * Unprivileged users are allowed to modify the
496 * quota on things *under* (ie. contained by)
497 * the thing they own.
499 if (dsl_prop_get_integer(dsname
, "zoned", &zoned
,
502 if (!zoned
|| strlen(dsname
) <= strlen(setpoint
))
507 case ZFS_PROP_MLSLABEL
:
508 if (!is_system_labeled())
511 if (nvpair_value_string(propval
, &strval
) == 0) {
514 err
= zfs_set_slabel_policy(dsname
, strval
, CRED());
521 return (zfs_secpolicy_write_perms(dsname
, zfs_prop_to_name(prop
), cr
));
525 zfs_secpolicy_fsacl(zfs_cmd_t
*zc
, cred_t
*cr
)
529 error
= zfs_dozonecheck(zc
->zc_name
, cr
);
534 * permission to set permissions will be evaluated later in
535 * dsl_deleg_can_allow()
541 zfs_secpolicy_rollback(zfs_cmd_t
*zc
, cred_t
*cr
)
543 return (zfs_secpolicy_write_perms(zc
->zc_name
,
544 ZFS_DELEG_PERM_ROLLBACK
, cr
));
548 zfs_secpolicy_send(zfs_cmd_t
*zc
, cred_t
*cr
)
557 * Generate the current snapshot name from the given objsetid, then
558 * use that name for the secpolicy/zone checks.
560 cp
= strchr(zc
->zc_name
, '@');
563 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
567 dp
= spa_get_dsl(spa
);
568 rw_enter(&dp
->dp_config_rwlock
, RW_READER
);
569 error
= dsl_dataset_hold_obj(dp
, zc
->zc_sendobj
, FTAG
, &ds
);
570 rw_exit(&dp
->dp_config_rwlock
);
571 spa_close(spa
, FTAG
);
575 dsl_dataset_name(ds
, zc
->zc_name
);
577 error
= zfs_secpolicy_write_perms_ds(zc
->zc_name
, ds
,
578 ZFS_DELEG_PERM_SEND
, cr
);
579 dsl_dataset_rele(ds
, FTAG
);
584 #ifdef HAVE_SMB_SHARE
586 zfs_secpolicy_deleg_share(zfs_cmd_t
*zc
, cred_t
*cr
)
591 if ((error
= lookupname(zc
->zc_value
, UIO_SYSSPACE
,
592 NO_FOLLOW
, NULL
, &vp
)) != 0)
595 /* Now make sure mntpnt and dataset are ZFS */
597 if (vp
->v_vfsp
->vfs_fstype
!= zfsfstype
||
598 (strcmp((char *)refstr_value(vp
->v_vfsp
->vfs_resource
),
599 zc
->zc_name
) != 0)) {
605 return (dsl_deleg_access(zc
->zc_name
,
606 ZFS_DELEG_PERM_SHARE
, cr
));
608 #endif /* HAVE_SMB_SHARE */
611 zfs_secpolicy_share(zfs_cmd_t
*zc
, cred_t
*cr
)
613 #ifdef HAVE_SMB_SHARE
614 if (!INGLOBALZONE(curproc
))
617 if (secpolicy_nfs(cr
) == 0) {
620 return (zfs_secpolicy_deleg_share(zc
, cr
));
624 #endif /* HAVE_SMB_SHARE */
628 zfs_secpolicy_smb_acl(zfs_cmd_t
*zc
, cred_t
*cr
)
630 #ifdef HAVE_SMB_SHARE
631 if (!INGLOBALZONE(curproc
))
634 if (secpolicy_smb(cr
) == 0) {
637 return (zfs_secpolicy_deleg_share(zc
, cr
));
641 #endif /* HAVE_SMB_SHARE */
645 zfs_get_parent(const char *datasetname
, char *parent
, int parentsize
)
650 * Remove the @bla or /bla from the end of the name to get the parent.
652 (void) strncpy(parent
, datasetname
, parentsize
);
653 cp
= strrchr(parent
, '@');
657 cp
= strrchr(parent
, '/');
667 zfs_secpolicy_destroy_perms(const char *name
, cred_t
*cr
)
671 if ((error
= zfs_secpolicy_write_perms(name
,
672 ZFS_DELEG_PERM_MOUNT
, cr
)) != 0)
675 return (zfs_secpolicy_write_perms(name
, ZFS_DELEG_PERM_DESTROY
, cr
));
679 zfs_secpolicy_destroy(zfs_cmd_t
*zc
, cred_t
*cr
)
681 return (zfs_secpolicy_destroy_perms(zc
->zc_name
, cr
));
685 * Destroying snapshots with delegated permissions requires
686 * descendent mount and destroy permissions.
689 zfs_secpolicy_destroy_recursive(zfs_cmd_t
*zc
, cred_t
*cr
)
694 dsname
= kmem_asprintf("%s@", zc
->zc_name
);
696 error
= zfs_secpolicy_destroy_perms(dsname
, cr
);
698 error
= zfs_secpolicy_destroy_perms(zc
->zc_name
, cr
);
705 zfs_secpolicy_rename_perms(const char *from
, const char *to
, cred_t
*cr
)
707 char parentname
[MAXNAMELEN
];
710 if ((error
= zfs_secpolicy_write_perms(from
,
711 ZFS_DELEG_PERM_RENAME
, cr
)) != 0)
714 if ((error
= zfs_secpolicy_write_perms(from
,
715 ZFS_DELEG_PERM_MOUNT
, cr
)) != 0)
718 if ((error
= zfs_get_parent(to
, parentname
,
719 sizeof (parentname
))) != 0)
722 if ((error
= zfs_secpolicy_write_perms(parentname
,
723 ZFS_DELEG_PERM_CREATE
, cr
)) != 0)
726 if ((error
= zfs_secpolicy_write_perms(parentname
,
727 ZFS_DELEG_PERM_MOUNT
, cr
)) != 0)
734 zfs_secpolicy_rename(zfs_cmd_t
*zc
, cred_t
*cr
)
736 return (zfs_secpolicy_rename_perms(zc
->zc_name
, zc
->zc_value
, cr
));
740 zfs_secpolicy_promote(zfs_cmd_t
*zc
, cred_t
*cr
)
742 char parentname
[MAXNAMELEN
];
746 error
= zfs_secpolicy_write_perms(zc
->zc_name
,
747 ZFS_DELEG_PERM_PROMOTE
, cr
);
751 error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &clone
);
754 dsl_dataset_t
*pclone
= NULL
;
756 dd
= clone
->os_dsl_dataset
->ds_dir
;
758 rw_enter(&dd
->dd_pool
->dp_config_rwlock
, RW_READER
);
759 error
= dsl_dataset_hold_obj(dd
->dd_pool
,
760 dd
->dd_phys
->dd_origin_obj
, FTAG
, &pclone
);
761 rw_exit(&dd
->dd_pool
->dp_config_rwlock
);
763 dmu_objset_rele(clone
, FTAG
);
767 error
= zfs_secpolicy_write_perms(zc
->zc_name
,
768 ZFS_DELEG_PERM_MOUNT
, cr
);
770 dsl_dataset_name(pclone
, parentname
);
771 dmu_objset_rele(clone
, FTAG
);
772 dsl_dataset_rele(pclone
, FTAG
);
774 error
= zfs_secpolicy_write_perms(parentname
,
775 ZFS_DELEG_PERM_PROMOTE
, cr
);
781 zfs_secpolicy_receive(zfs_cmd_t
*zc
, cred_t
*cr
)
785 if ((error
= zfs_secpolicy_write_perms(zc
->zc_name
,
786 ZFS_DELEG_PERM_RECEIVE
, cr
)) != 0)
789 if ((error
= zfs_secpolicy_write_perms(zc
->zc_name
,
790 ZFS_DELEG_PERM_MOUNT
, cr
)) != 0)
793 return (zfs_secpolicy_write_perms(zc
->zc_name
,
794 ZFS_DELEG_PERM_CREATE
, cr
));
798 zfs_secpolicy_snapshot_perms(const char *name
, cred_t
*cr
)
800 return (zfs_secpolicy_write_perms(name
,
801 ZFS_DELEG_PERM_SNAPSHOT
, cr
));
805 zfs_secpolicy_snapshot(zfs_cmd_t
*zc
, cred_t
*cr
)
808 return (zfs_secpolicy_snapshot_perms(zc
->zc_name
, cr
));
812 zfs_secpolicy_create(zfs_cmd_t
*zc
, cred_t
*cr
)
814 char parentname
[MAXNAMELEN
];
817 if ((error
= zfs_get_parent(zc
->zc_name
, parentname
,
818 sizeof (parentname
))) != 0)
821 if (zc
->zc_value
[0] != '\0') {
822 if ((error
= zfs_secpolicy_write_perms(zc
->zc_value
,
823 ZFS_DELEG_PERM_CLONE
, cr
)) != 0)
827 if ((error
= zfs_secpolicy_write_perms(parentname
,
828 ZFS_DELEG_PERM_CREATE
, cr
)) != 0)
831 error
= zfs_secpolicy_write_perms(parentname
,
832 ZFS_DELEG_PERM_MOUNT
, cr
);
838 * Policy for pool operations - create/destroy pools, add vdevs, etc. Requires
839 * SYS_CONFIG privilege, which is not available in a local zone.
843 zfs_secpolicy_config(zfs_cmd_t
*zc
, cred_t
*cr
)
845 if (secpolicy_sys_config(cr
, B_FALSE
) != 0)
852 * Policy for object to name lookups.
856 zfs_secpolicy_diff(zfs_cmd_t
*zc
, cred_t
*cr
)
860 if ((error
= secpolicy_sys_config(cr
, B_FALSE
)) == 0)
863 error
= zfs_secpolicy_write_perms(zc
->zc_name
, ZFS_DELEG_PERM_DIFF
, cr
);
868 * Policy for fault injection. Requires all privileges.
872 zfs_secpolicy_inject(zfs_cmd_t
*zc
, cred_t
*cr
)
874 return (secpolicy_zinject(cr
));
878 zfs_secpolicy_inherit(zfs_cmd_t
*zc
, cred_t
*cr
)
880 zfs_prop_t prop
= zfs_name_to_prop(zc
->zc_value
);
882 if (prop
== ZPROP_INVAL
) {
883 if (!zfs_prop_user(zc
->zc_value
))
885 return (zfs_secpolicy_write_perms(zc
->zc_name
,
886 ZFS_DELEG_PERM_USERPROP
, cr
));
888 return (zfs_secpolicy_setprop(zc
->zc_name
, prop
,
894 zfs_secpolicy_userspace_one(zfs_cmd_t
*zc
, cred_t
*cr
)
896 int err
= zfs_secpolicy_read(zc
, cr
);
900 if (zc
->zc_objset_type
>= ZFS_NUM_USERQUOTA_PROPS
)
903 if (zc
->zc_value
[0] == 0) {
905 * They are asking about a posix uid/gid. If it's
906 * themself, allow it.
908 if (zc
->zc_objset_type
== ZFS_PROP_USERUSED
||
909 zc
->zc_objset_type
== ZFS_PROP_USERQUOTA
) {
910 if (zc
->zc_guid
== crgetuid(cr
))
913 if (groupmember(zc
->zc_guid
, cr
))
918 return (zfs_secpolicy_write_perms(zc
->zc_name
,
919 userquota_perms
[zc
->zc_objset_type
], cr
));
923 zfs_secpolicy_userspace_many(zfs_cmd_t
*zc
, cred_t
*cr
)
925 int err
= zfs_secpolicy_read(zc
, cr
);
929 if (zc
->zc_objset_type
>= ZFS_NUM_USERQUOTA_PROPS
)
932 return (zfs_secpolicy_write_perms(zc
->zc_name
,
933 userquota_perms
[zc
->zc_objset_type
], cr
));
937 zfs_secpolicy_userspace_upgrade(zfs_cmd_t
*zc
, cred_t
*cr
)
939 return (zfs_secpolicy_setprop(zc
->zc_name
, ZFS_PROP_VERSION
,
944 zfs_secpolicy_hold(zfs_cmd_t
*zc
, cred_t
*cr
)
946 return (zfs_secpolicy_write_perms(zc
->zc_name
,
947 ZFS_DELEG_PERM_HOLD
, cr
));
951 zfs_secpolicy_release(zfs_cmd_t
*zc
, cred_t
*cr
)
953 return (zfs_secpolicy_write_perms(zc
->zc_name
,
954 ZFS_DELEG_PERM_RELEASE
, cr
));
958 * Policy for allowing temporary snapshots to be taken or released
961 zfs_secpolicy_tmp_snapshot(zfs_cmd_t
*zc
, cred_t
*cr
)
964 * A temporary snapshot is the same as a snapshot,
965 * hold, destroy and release all rolled into one.
966 * Delegated diff alone is sufficient that we allow this.
970 if ((error
= zfs_secpolicy_write_perms(zc
->zc_name
,
971 ZFS_DELEG_PERM_DIFF
, cr
)) == 0)
974 error
= zfs_secpolicy_snapshot(zc
, cr
);
976 error
= zfs_secpolicy_hold(zc
, cr
);
978 error
= zfs_secpolicy_release(zc
, cr
);
980 error
= zfs_secpolicy_destroy(zc
, cr
);
985 * Returns the nvlist as specified by the user in the zfs_cmd_t.
988 get_nvlist(uint64_t nvl
, uint64_t size
, int iflag
, nvlist_t
**nvp
)
992 nvlist_t
*list
= NULL
;
995 * Read in and unpack the user-supplied nvlist.
1000 packed
= kmem_alloc(size
, KM_SLEEP
| KM_NODEBUG
);
1002 if ((error
= ddi_copyin((void *)(uintptr_t)nvl
, packed
, size
,
1004 kmem_free(packed
, size
);
1008 if ((error
= nvlist_unpack(packed
, size
, &list
, 0)) != 0) {
1009 kmem_free(packed
, size
);
1013 kmem_free(packed
, size
);
1020 fit_error_list(zfs_cmd_t
*zc
, nvlist_t
**errors
)
1024 VERIFY(nvlist_size(*errors
, &size
, NV_ENCODE_NATIVE
) == 0);
1026 if (size
> zc
->zc_nvlist_dst_size
) {
1027 nvpair_t
*more_errors
;
1030 if (zc
->zc_nvlist_dst_size
< 1024)
1033 VERIFY(nvlist_add_int32(*errors
, ZPROP_N_MORE_ERRORS
, 0) == 0);
1034 more_errors
= nvlist_prev_nvpair(*errors
, NULL
);
1037 nvpair_t
*pair
= nvlist_prev_nvpair(*errors
,
1039 VERIFY(nvlist_remove_nvpair(*errors
, pair
) == 0);
1041 VERIFY(nvlist_size(*errors
, &size
,
1042 NV_ENCODE_NATIVE
) == 0);
1043 } while (size
> zc
->zc_nvlist_dst_size
);
1045 VERIFY(nvlist_remove_nvpair(*errors
, more_errors
) == 0);
1046 VERIFY(nvlist_add_int32(*errors
, ZPROP_N_MORE_ERRORS
, n
) == 0);
1047 ASSERT(nvlist_size(*errors
, &size
, NV_ENCODE_NATIVE
) == 0);
1048 ASSERT(size
<= zc
->zc_nvlist_dst_size
);
1055 put_nvlist(zfs_cmd_t
*zc
, nvlist_t
*nvl
)
1057 char *packed
= NULL
;
1061 VERIFY(nvlist_size(nvl
, &size
, NV_ENCODE_NATIVE
) == 0);
1063 if (size
> zc
->zc_nvlist_dst_size
) {
1066 packed
= kmem_alloc(size
, KM_SLEEP
| KM_NODEBUG
);
1067 VERIFY(nvlist_pack(nvl
, &packed
, &size
, NV_ENCODE_NATIVE
,
1069 if (ddi_copyout(packed
, (void *)(uintptr_t)zc
->zc_nvlist_dst
,
1070 size
, zc
->zc_iflags
) != 0)
1072 kmem_free(packed
, size
);
1075 zc
->zc_nvlist_dst_size
= size
;
1080 get_zfs_sb(const char *dsname
, zfs_sb_t
**zsbp
)
1085 error
= dmu_objset_hold(dsname
, FTAG
, &os
);
1088 if (dmu_objset_type(os
) != DMU_OST_ZFS
) {
1089 dmu_objset_rele(os
, FTAG
);
1093 mutex_enter(&os
->os_user_ptr_lock
);
1094 *zsbp
= dmu_objset_get_user(os
);
1095 if (*zsbp
&& (*zsbp
)->z_sb
) {
1096 atomic_inc(&((*zsbp
)->z_sb
->s_active
));
1100 mutex_exit(&os
->os_user_ptr_lock
);
1101 dmu_objset_rele(os
, FTAG
);
1106 * Find a zfs_sb_t for a mounted filesystem, or create our own, in which
1107 * case its z_sb will be NULL, and it will be opened as the owner.
1110 zfs_sb_hold(const char *name
, void *tag
, zfs_sb_t
**zsbp
, boolean_t writer
)
1114 if (get_zfs_sb(name
, zsbp
) != 0)
1115 error
= zfs_sb_create(name
, zsbp
);
1117 rrw_enter(&(*zsbp
)->z_teardown_lock
, (writer
) ? RW_WRITER
:
1119 if ((*zsbp
)->z_unmounted
) {
1121 * XXX we could probably try again, since the unmounting
1122 * thread should be just about to disassociate the
1123 * objset from the zfsvfs.
1125 rrw_exit(&(*zsbp
)->z_teardown_lock
, tag
);
1133 zfs_sb_rele(zfs_sb_t
*zsb
, void *tag
)
1135 rrw_exit(&zsb
->z_teardown_lock
, tag
);
1138 deactivate_super(zsb
->z_sb
);
1140 dmu_objset_disown(zsb
->z_os
, zsb
);
1146 zfs_ioc_pool_create(zfs_cmd_t
*zc
)
1149 nvlist_t
*config
, *props
= NULL
;
1150 nvlist_t
*rootprops
= NULL
;
1151 nvlist_t
*zplprops
= NULL
;
1154 if ((error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1155 zc
->zc_iflags
, &config
)))
1158 if (zc
->zc_nvlist_src_size
!= 0 && (error
=
1159 get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
1160 zc
->zc_iflags
, &props
))) {
1161 nvlist_free(config
);
1166 nvlist_t
*nvl
= NULL
;
1167 uint64_t version
= SPA_VERSION
;
1169 (void) nvlist_lookup_uint64(props
,
1170 zpool_prop_to_name(ZPOOL_PROP_VERSION
), &version
);
1171 if (version
< SPA_VERSION_INITIAL
|| version
> SPA_VERSION
) {
1173 goto pool_props_bad
;
1175 (void) nvlist_lookup_nvlist(props
, ZPOOL_ROOTFS_PROPS
, &nvl
);
1177 error
= nvlist_dup(nvl
, &rootprops
, KM_SLEEP
);
1179 nvlist_free(config
);
1183 (void) nvlist_remove_all(props
, ZPOOL_ROOTFS_PROPS
);
1185 VERIFY(nvlist_alloc(&zplprops
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
1186 error
= zfs_fill_zplprops_root(version
, rootprops
,
1189 goto pool_props_bad
;
1192 buf
= history_str_get(zc
);
1194 error
= spa_create(zc
->zc_name
, config
, props
, buf
, zplprops
);
1197 * Set the remaining root properties
1199 if (!error
&& (error
= zfs_set_prop_nvlist(zc
->zc_name
,
1200 ZPROP_SRC_LOCAL
, rootprops
, NULL
)) != 0)
1201 (void) spa_destroy(zc
->zc_name
);
1204 history_str_free(buf
);
1207 nvlist_free(rootprops
);
1208 nvlist_free(zplprops
);
1209 nvlist_free(config
);
1216 zfs_ioc_pool_destroy(zfs_cmd_t
*zc
)
1219 zfs_log_history(zc
);
1220 error
= spa_destroy(zc
->zc_name
);
1222 zvol_remove_minors(zc
->zc_name
);
1227 zfs_ioc_pool_import(zfs_cmd_t
*zc
)
1229 nvlist_t
*config
, *props
= NULL
;
1233 if ((error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1234 zc
->zc_iflags
, &config
)) != 0)
1237 if (zc
->zc_nvlist_src_size
!= 0 && (error
=
1238 get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
1239 zc
->zc_iflags
, &props
))) {
1240 nvlist_free(config
);
1244 if (nvlist_lookup_uint64(config
, ZPOOL_CONFIG_POOL_GUID
, &guid
) != 0 ||
1245 guid
!= zc
->zc_guid
)
1248 error
= spa_import(zc
->zc_name
, config
, props
, zc
->zc_cookie
);
1250 if (zc
->zc_nvlist_dst
!= 0) {
1253 if ((err
= put_nvlist(zc
, config
)) != 0)
1258 zvol_create_minors(zc
->zc_name
);
1260 nvlist_free(config
);
1269 zfs_ioc_pool_export(zfs_cmd_t
*zc
)
1272 boolean_t force
= (boolean_t
)zc
->zc_cookie
;
1273 boolean_t hardforce
= (boolean_t
)zc
->zc_guid
;
1275 zfs_log_history(zc
);
1276 error
= spa_export(zc
->zc_name
, NULL
, force
, hardforce
);
1278 zvol_remove_minors(zc
->zc_name
);
1283 zfs_ioc_pool_configs(zfs_cmd_t
*zc
)
1288 if ((configs
= spa_all_configs(&zc
->zc_cookie
)) == NULL
)
1291 error
= put_nvlist(zc
, configs
);
1293 nvlist_free(configs
);
1299 zfs_ioc_pool_stats(zfs_cmd_t
*zc
)
1305 error
= spa_get_stats(zc
->zc_name
, &config
, zc
->zc_value
,
1306 sizeof (zc
->zc_value
));
1308 if (config
!= NULL
) {
1309 ret
= put_nvlist(zc
, config
);
1310 nvlist_free(config
);
1313 * The config may be present even if 'error' is non-zero.
1314 * In this case we return success, and preserve the real errno
1317 zc
->zc_cookie
= error
;
1326 * Try to import the given pool, returning pool stats as appropriate so that
1327 * user land knows which devices are available and overall pool health.
1330 zfs_ioc_pool_tryimport(zfs_cmd_t
*zc
)
1332 nvlist_t
*tryconfig
, *config
;
1335 if ((error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1336 zc
->zc_iflags
, &tryconfig
)) != 0)
1339 config
= spa_tryimport(tryconfig
);
1341 nvlist_free(tryconfig
);
1346 error
= put_nvlist(zc
, config
);
1347 nvlist_free(config
);
1354 * zc_name name of the pool
1355 * zc_cookie scan func (pool_scan_func_t)
1358 zfs_ioc_pool_scan(zfs_cmd_t
*zc
)
1363 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1366 if (zc
->zc_cookie
== POOL_SCAN_NONE
)
1367 error
= spa_scan_stop(spa
);
1369 error
= spa_scan(spa
, zc
->zc_cookie
);
1371 spa_close(spa
, FTAG
);
1377 zfs_ioc_pool_freeze(zfs_cmd_t
*zc
)
1382 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
1385 spa_close(spa
, FTAG
);
1391 zfs_ioc_pool_upgrade(zfs_cmd_t
*zc
)
1396 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1399 if (zc
->zc_cookie
< spa_version(spa
) || zc
->zc_cookie
> SPA_VERSION
) {
1400 spa_close(spa
, FTAG
);
1404 spa_upgrade(spa
, zc
->zc_cookie
);
1405 spa_close(spa
, FTAG
);
1411 zfs_ioc_pool_get_history(zfs_cmd_t
*zc
)
1418 if ((size
= zc
->zc_history_len
) == 0)
1421 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1424 if (spa_version(spa
) < SPA_VERSION_ZPOOL_HISTORY
) {
1425 spa_close(spa
, FTAG
);
1429 hist_buf
= vmem_alloc(size
, KM_SLEEP
);
1430 if ((error
= spa_history_get(spa
, &zc
->zc_history_offset
,
1431 &zc
->zc_history_len
, hist_buf
)) == 0) {
1432 error
= ddi_copyout(hist_buf
,
1433 (void *)(uintptr_t)zc
->zc_history
,
1434 zc
->zc_history_len
, zc
->zc_iflags
);
1437 spa_close(spa
, FTAG
);
1438 vmem_free(hist_buf
, size
);
1443 zfs_ioc_pool_reguid(zfs_cmd_t
*zc
)
1448 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
1450 error
= spa_change_guid(spa
);
1451 spa_close(spa
, FTAG
);
1457 zfs_ioc_dsobj_to_dsname(zfs_cmd_t
*zc
)
1461 if ((error
= dsl_dsobj_to_dsname(zc
->zc_name
,zc
->zc_obj
,zc
->zc_value
)))
1469 * zc_name name of filesystem
1470 * zc_obj object to find
1473 * zc_value name of object
1476 zfs_ioc_obj_to_path(zfs_cmd_t
*zc
)
1481 /* XXX reading from objset not owned */
1482 if ((error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
)) != 0)
1484 if (dmu_objset_type(os
) != DMU_OST_ZFS
) {
1485 dmu_objset_rele(os
, FTAG
);
1488 error
= zfs_obj_to_path(os
, zc
->zc_obj
, zc
->zc_value
,
1489 sizeof (zc
->zc_value
));
1490 dmu_objset_rele(os
, FTAG
);
1497 * zc_name name of filesystem
1498 * zc_obj object to find
1501 * zc_stat stats on object
1502 * zc_value path to object
1505 zfs_ioc_obj_to_stats(zfs_cmd_t
*zc
)
1510 /* XXX reading from objset not owned */
1511 if ((error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
)) != 0)
1513 if (dmu_objset_type(os
) != DMU_OST_ZFS
) {
1514 dmu_objset_rele(os
, FTAG
);
1517 error
= zfs_obj_to_stats(os
, zc
->zc_obj
, &zc
->zc_stat
, zc
->zc_value
,
1518 sizeof (zc
->zc_value
));
1519 dmu_objset_rele(os
, FTAG
);
1525 zfs_ioc_vdev_add(zfs_cmd_t
*zc
)
1529 nvlist_t
*config
, **l2cache
, **spares
;
1530 uint_t nl2cache
= 0, nspares
= 0;
1532 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
1536 error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1537 zc
->zc_iflags
, &config
);
1538 (void) nvlist_lookup_nvlist_array(config
, ZPOOL_CONFIG_L2CACHE
,
1539 &l2cache
, &nl2cache
);
1541 (void) nvlist_lookup_nvlist_array(config
, ZPOOL_CONFIG_SPARES
,
1545 * A root pool with concatenated devices is not supported.
1546 * Thus, can not add a device to a root pool.
1548 * Intent log device can not be added to a rootpool because
1549 * during mountroot, zil is replayed, a seperated log device
1550 * can not be accessed during the mountroot time.
1552 * l2cache and spare devices are ok to be added to a rootpool.
1554 if (spa_bootfs(spa
) != 0 && nl2cache
== 0 && nspares
== 0) {
1555 nvlist_free(config
);
1556 spa_close(spa
, FTAG
);
1561 error
= spa_vdev_add(spa
, config
);
1562 nvlist_free(config
);
1564 spa_close(spa
, FTAG
);
1570 * zc_name name of the pool
1571 * zc_nvlist_conf nvlist of devices to remove
1572 * zc_cookie to stop the remove?
1575 zfs_ioc_vdev_remove(zfs_cmd_t
*zc
)
1580 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
1583 error
= spa_vdev_remove(spa
, zc
->zc_guid
, B_FALSE
);
1584 spa_close(spa
, FTAG
);
1589 zfs_ioc_vdev_set_state(zfs_cmd_t
*zc
)
1593 vdev_state_t newstate
= VDEV_STATE_UNKNOWN
;
1595 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1597 switch (zc
->zc_cookie
) {
1598 case VDEV_STATE_ONLINE
:
1599 error
= vdev_online(spa
, zc
->zc_guid
, zc
->zc_obj
, &newstate
);
1602 case VDEV_STATE_OFFLINE
:
1603 error
= vdev_offline(spa
, zc
->zc_guid
, zc
->zc_obj
);
1606 case VDEV_STATE_FAULTED
:
1607 if (zc
->zc_obj
!= VDEV_AUX_ERR_EXCEEDED
&&
1608 zc
->zc_obj
!= VDEV_AUX_EXTERNAL
)
1609 zc
->zc_obj
= VDEV_AUX_ERR_EXCEEDED
;
1611 error
= vdev_fault(spa
, zc
->zc_guid
, zc
->zc_obj
);
1614 case VDEV_STATE_DEGRADED
:
1615 if (zc
->zc_obj
!= VDEV_AUX_ERR_EXCEEDED
&&
1616 zc
->zc_obj
!= VDEV_AUX_EXTERNAL
)
1617 zc
->zc_obj
= VDEV_AUX_ERR_EXCEEDED
;
1619 error
= vdev_degrade(spa
, zc
->zc_guid
, zc
->zc_obj
);
1625 zc
->zc_cookie
= newstate
;
1626 spa_close(spa
, FTAG
);
1631 zfs_ioc_vdev_attach(zfs_cmd_t
*zc
)
1634 int replacing
= zc
->zc_cookie
;
1638 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1641 if ((error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1642 zc
->zc_iflags
, &config
)) == 0) {
1643 error
= spa_vdev_attach(spa
, zc
->zc_guid
, config
, replacing
);
1644 nvlist_free(config
);
1647 spa_close(spa
, FTAG
);
1652 zfs_ioc_vdev_detach(zfs_cmd_t
*zc
)
1657 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1660 error
= spa_vdev_detach(spa
, zc
->zc_guid
, 0, B_FALSE
);
1662 spa_close(spa
, FTAG
);
1667 zfs_ioc_vdev_split(zfs_cmd_t
*zc
)
1670 nvlist_t
*config
, *props
= NULL
;
1672 boolean_t exp
= !!(zc
->zc_cookie
& ZPOOL_EXPORT_AFTER_SPLIT
);
1674 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1677 if ((error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1678 zc
->zc_iflags
, &config
))) {
1679 spa_close(spa
, FTAG
);
1683 if (zc
->zc_nvlist_src_size
!= 0 && (error
=
1684 get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
1685 zc
->zc_iflags
, &props
))) {
1686 spa_close(spa
, FTAG
);
1687 nvlist_free(config
);
1691 error
= spa_vdev_split_mirror(spa
, zc
->zc_string
, config
, props
, exp
);
1693 spa_close(spa
, FTAG
);
1695 nvlist_free(config
);
1702 zfs_ioc_vdev_setpath(zfs_cmd_t
*zc
)
1705 char *path
= zc
->zc_value
;
1706 uint64_t guid
= zc
->zc_guid
;
1709 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
1713 error
= spa_vdev_setpath(spa
, guid
, path
);
1714 spa_close(spa
, FTAG
);
1719 zfs_ioc_vdev_setfru(zfs_cmd_t
*zc
)
1722 char *fru
= zc
->zc_value
;
1723 uint64_t guid
= zc
->zc_guid
;
1726 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
1730 error
= spa_vdev_setfru(spa
, guid
, fru
);
1731 spa_close(spa
, FTAG
);
1736 zfs_ioc_objset_stats_impl(zfs_cmd_t
*zc
, objset_t
*os
)
1741 dmu_objset_fast_stat(os
, &zc
->zc_objset_stats
);
1743 if (zc
->zc_nvlist_dst
!= 0 &&
1744 (error
= dsl_prop_get_all(os
, &nv
)) == 0) {
1745 dmu_objset_stats(os
, nv
);
1747 * NB: zvol_get_stats() will read the objset contents,
1748 * which we aren't supposed to do with a
1749 * DS_MODE_USER hold, because it could be
1750 * inconsistent. So this is a bit of a workaround...
1751 * XXX reading with out owning
1753 if (!zc
->zc_objset_stats
.dds_inconsistent
&&
1754 dmu_objset_type(os
) == DMU_OST_ZVOL
) {
1755 error
= zvol_get_stats(os
, nv
);
1758 VERIFY3S(error
, ==, 0);
1761 error
= put_nvlist(zc
, nv
);
1770 * zc_name name of filesystem
1771 * zc_nvlist_dst_size size of buffer for property nvlist
1774 * zc_objset_stats stats
1775 * zc_nvlist_dst property nvlist
1776 * zc_nvlist_dst_size size of property nvlist
1779 zfs_ioc_objset_stats(zfs_cmd_t
*zc
)
1781 objset_t
*os
= NULL
;
1784 if ((error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
)))
1787 error
= zfs_ioc_objset_stats_impl(zc
, os
);
1789 dmu_objset_rele(os
, FTAG
);
1796 * zc_name name of filesystem
1797 * zc_nvlist_dst_size size of buffer for property nvlist
1800 * zc_nvlist_dst received property nvlist
1801 * zc_nvlist_dst_size size of received property nvlist
1803 * Gets received properties (distinct from local properties on or after
1804 * SPA_VERSION_RECVD_PROPS) for callers who want to differentiate received from
1805 * local property values.
1808 zfs_ioc_objset_recvd_props(zfs_cmd_t
*zc
)
1810 objset_t
*os
= NULL
;
1814 if ((error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
)))
1818 * Without this check, we would return local property values if the
1819 * caller has not already received properties on or after
1820 * SPA_VERSION_RECVD_PROPS.
1822 if (!dsl_prop_get_hasrecvd(os
)) {
1823 dmu_objset_rele(os
, FTAG
);
1827 if (zc
->zc_nvlist_dst
!= 0 &&
1828 (error
= dsl_prop_get_received(os
, &nv
)) == 0) {
1829 error
= put_nvlist(zc
, nv
);
1833 dmu_objset_rele(os
, FTAG
);
1838 nvl_add_zplprop(objset_t
*os
, nvlist_t
*props
, zfs_prop_t prop
)
1844 * zfs_get_zplprop() will either find a value or give us
1845 * the default value (if there is one).
1847 if ((error
= zfs_get_zplprop(os
, prop
, &value
)) != 0)
1849 VERIFY(nvlist_add_uint64(props
, zfs_prop_to_name(prop
), value
) == 0);
1855 * zc_name name of filesystem
1856 * zc_nvlist_dst_size size of buffer for zpl property nvlist
1859 * zc_nvlist_dst zpl property nvlist
1860 * zc_nvlist_dst_size size of zpl property nvlist
1863 zfs_ioc_objset_zplprops(zfs_cmd_t
*zc
)
1868 /* XXX reading without owning */
1869 if ((err
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
)))
1872 dmu_objset_fast_stat(os
, &zc
->zc_objset_stats
);
1875 * NB: nvl_add_zplprop() will read the objset contents,
1876 * which we aren't supposed to do with a DS_MODE_USER
1877 * hold, because it could be inconsistent.
1879 if (zc
->zc_nvlist_dst
!= 0 &&
1880 !zc
->zc_objset_stats
.dds_inconsistent
&&
1881 dmu_objset_type(os
) == DMU_OST_ZFS
) {
1884 VERIFY(nvlist_alloc(&nv
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
1885 if ((err
= nvl_add_zplprop(os
, nv
, ZFS_PROP_VERSION
)) == 0 &&
1886 (err
= nvl_add_zplprop(os
, nv
, ZFS_PROP_NORMALIZE
)) == 0 &&
1887 (err
= nvl_add_zplprop(os
, nv
, ZFS_PROP_UTF8ONLY
)) == 0 &&
1888 (err
= nvl_add_zplprop(os
, nv
, ZFS_PROP_CASE
)) == 0)
1889 err
= put_nvlist(zc
, nv
);
1894 dmu_objset_rele(os
, FTAG
);
1899 dataset_name_hidden(const char *name
)
1902 * Skip over datasets that are not visible in this zone,
1903 * internal datasets (which have a $ in their name), and
1904 * temporary datasets (which have a % in their name).
1906 if (strchr(name
, '$') != NULL
)
1908 if (strchr(name
, '%') != NULL
)
1910 if (!INGLOBALZONE(curproc
) && !zone_dataset_visible(name
, NULL
))
1917 * zc_name name of filesystem
1918 * zc_cookie zap cursor
1919 * zc_nvlist_dst_size size of buffer for property nvlist
1922 * zc_name name of next filesystem
1923 * zc_cookie zap cursor
1924 * zc_objset_stats stats
1925 * zc_nvlist_dst property nvlist
1926 * zc_nvlist_dst_size size of property nvlist
1929 zfs_ioc_dataset_list_next(zfs_cmd_t
*zc
)
1934 size_t orig_len
= strlen(zc
->zc_name
);
1937 if ((error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
))) {
1938 if (error
== ENOENT
)
1943 p
= strrchr(zc
->zc_name
, '/');
1944 if (p
== NULL
|| p
[1] != '\0')
1945 (void) strlcat(zc
->zc_name
, "/", sizeof (zc
->zc_name
));
1946 p
= zc
->zc_name
+ strlen(zc
->zc_name
);
1949 * Pre-fetch the datasets. dmu_objset_prefetch() always returns 0
1950 * but is not declared void because its called by dmu_objset_find().
1952 if (zc
->zc_cookie
== 0) {
1953 uint64_t cookie
= 0;
1954 int len
= sizeof (zc
->zc_name
) - (p
- zc
->zc_name
);
1956 while (dmu_dir_list_next(os
, len
, p
, NULL
, &cookie
) == 0) {
1957 if (!dataset_name_hidden(zc
->zc_name
))
1958 (void) dmu_objset_prefetch(zc
->zc_name
, NULL
);
1963 error
= dmu_dir_list_next(os
,
1964 sizeof (zc
->zc_name
) - (p
- zc
->zc_name
), p
,
1965 NULL
, &zc
->zc_cookie
);
1966 if (error
== ENOENT
)
1968 } while (error
== 0 && dataset_name_hidden(zc
->zc_name
));
1969 dmu_objset_rele(os
, FTAG
);
1972 * If it's an internal dataset (ie. with a '$' in its name),
1973 * don't try to get stats for it, otherwise we'll return ENOENT.
1975 if (error
== 0 && strchr(zc
->zc_name
, '$') == NULL
) {
1976 error
= zfs_ioc_objset_stats(zc
); /* fill in the stats */
1977 if (error
== ENOENT
) {
1978 /* We lost a race with destroy, get the next one. */
1979 zc
->zc_name
[orig_len
] = '\0';
1988 * zc_name name of filesystem
1989 * zc_cookie zap cursor
1990 * zc_nvlist_dst_size size of buffer for property nvlist
1993 * zc_name name of next snapshot
1994 * zc_objset_stats stats
1995 * zc_nvlist_dst property nvlist
1996 * zc_nvlist_dst_size size of property nvlist
1999 zfs_ioc_snapshot_list_next(zfs_cmd_t
*zc
)
2005 if (zc
->zc_cookie
== 0 && !zc
->zc_simple
)
2006 (void) dmu_objset_find(zc
->zc_name
, dmu_objset_prefetch
,
2007 NULL
, DS_FIND_SNAPSHOTS
);
2009 error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
);
2011 return (error
== ENOENT
? ESRCH
: error
);
2014 * A dataset name of maximum length cannot have any snapshots,
2015 * so exit immediately.
2017 if (strlcat(zc
->zc_name
, "@", sizeof (zc
->zc_name
)) >= MAXNAMELEN
) {
2018 dmu_objset_rele(os
, FTAG
);
2022 error
= dmu_snapshot_list_next(os
,
2023 sizeof (zc
->zc_name
) - strlen(zc
->zc_name
),
2024 zc
->zc_name
+ strlen(zc
->zc_name
), &zc
->zc_obj
, &zc
->zc_cookie
,
2027 if (error
== 0 && !zc
->zc_simple
) {
2029 dsl_pool_t
*dp
= os
->os_dsl_dataset
->ds_dir
->dd_pool
;
2032 * Since we probably don't have a hold on this snapshot,
2033 * it's possible that the objsetid could have been destroyed
2034 * and reused for a new objset. It's OK if this happens during
2035 * a zfs send operation, since the new createtxg will be
2036 * beyond the range we're interested in.
2038 rw_enter(&dp
->dp_config_rwlock
, RW_READER
);
2039 error
= dsl_dataset_hold_obj(dp
, zc
->zc_obj
, FTAG
, &ds
);
2040 rw_exit(&dp
->dp_config_rwlock
);
2042 if (error
== ENOENT
) {
2043 /* Racing with destroy, get the next one. */
2044 *strchr(zc
->zc_name
, '@') = '\0';
2045 dmu_objset_rele(os
, FTAG
);
2051 error
= dmu_objset_from_ds(ds
, &ossnap
);
2053 error
= zfs_ioc_objset_stats_impl(zc
, ossnap
);
2054 dsl_dataset_rele(ds
, FTAG
);
2056 } else if (error
== ENOENT
) {
2060 dmu_objset_rele(os
, FTAG
);
2061 /* if we failed, undo the @ that we tacked on to zc_name */
2063 *strchr(zc
->zc_name
, '@') = '\0';
2068 zfs_prop_set_userquota(const char *dsname
, nvpair_t
*pair
)
2070 const char *propname
= nvpair_name(pair
);
2072 unsigned int vallen
;
2075 zfs_userquota_prop_t type
;
2081 if (nvpair_type(pair
) == DATA_TYPE_NVLIST
) {
2083 VERIFY(nvpair_value_nvlist(pair
, &attrs
) == 0);
2084 if (nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
2090 * A correctly constructed propname is encoded as
2091 * userquota@<rid>-<domain>.
2093 if ((dash
= strchr(propname
, '-')) == NULL
||
2094 nvpair_value_uint64_array(pair
, &valary
, &vallen
) != 0 ||
2103 err
= zfs_sb_hold(dsname
, FTAG
, &zsb
, B_FALSE
);
2105 err
= zfs_set_userquota(zsb
, type
, domain
, rid
, quota
);
2106 zfs_sb_rele(zsb
, FTAG
);
2113 * If the named property is one that has a special function to set its value,
2114 * return 0 on success and a positive error code on failure; otherwise if it is
2115 * not one of the special properties handled by this function, return -1.
2117 * XXX: It would be better for callers of the property interface if we handled
2118 * these special cases in dsl_prop.c (in the dsl layer).
2121 zfs_prop_set_special(const char *dsname
, zprop_source_t source
,
2124 const char *propname
= nvpair_name(pair
);
2125 zfs_prop_t prop
= zfs_name_to_prop(propname
);
2129 if (prop
== ZPROP_INVAL
) {
2130 if (zfs_prop_userquota(propname
))
2131 return (zfs_prop_set_userquota(dsname
, pair
));
2135 if (nvpair_type(pair
) == DATA_TYPE_NVLIST
) {
2137 VERIFY(nvpair_value_nvlist(pair
, &attrs
) == 0);
2138 VERIFY(nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
2142 if (zfs_prop_get_type(prop
) == PROP_TYPE_STRING
)
2145 VERIFY(0 == nvpair_value_uint64(pair
, &intval
));
2148 case ZFS_PROP_QUOTA
:
2149 err
= dsl_dir_set_quota(dsname
, source
, intval
);
2151 case ZFS_PROP_REFQUOTA
:
2152 err
= dsl_dataset_set_quota(dsname
, source
, intval
);
2154 case ZFS_PROP_RESERVATION
:
2155 err
= dsl_dir_set_reservation(dsname
, source
, intval
);
2157 case ZFS_PROP_REFRESERVATION
:
2158 err
= dsl_dataset_set_reservation(dsname
, source
, intval
);
2160 case ZFS_PROP_VOLSIZE
:
2161 err
= zvol_set_volsize(dsname
, intval
);
2163 case ZFS_PROP_VERSION
:
2167 if ((err
= zfs_sb_hold(dsname
, FTAG
, &zsb
, B_TRUE
)) != 0)
2170 err
= zfs_set_version(zsb
, intval
);
2171 zfs_sb_rele(zsb
, FTAG
);
2173 if (err
== 0 && intval
>= ZPL_VERSION_USERSPACE
) {
2176 zc
= kmem_zalloc(sizeof (zfs_cmd_t
),
2177 KM_SLEEP
| KM_NODEBUG
);
2178 (void) strcpy(zc
->zc_name
, dsname
);
2179 (void) zfs_ioc_userspace_upgrade(zc
);
2180 kmem_free(zc
, sizeof (zfs_cmd_t
));
2193 * This function is best effort. If it fails to set any of the given properties,
2194 * it continues to set as many as it can and returns the first error
2195 * encountered. If the caller provides a non-NULL errlist, it also gives the
2196 * complete list of names of all the properties it failed to set along with the
2197 * corresponding error numbers. The caller is responsible for freeing the
2200 * If every property is set successfully, zero is returned and the list pointed
2201 * at by errlist is NULL.
2204 zfs_set_prop_nvlist(const char *dsname
, zprop_source_t source
, nvlist_t
*nvl
,
2212 nvlist_t
*genericnvl
;
2216 VERIFY(nvlist_alloc(&genericnvl
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
2217 VERIFY(nvlist_alloc(&errors
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
2218 VERIFY(nvlist_alloc(&retrynvl
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
2222 while ((pair
= nvlist_next_nvpair(nvl
, pair
)) != NULL
) {
2223 const char *propname
= nvpair_name(pair
);
2224 zfs_prop_t prop
= zfs_name_to_prop(propname
);
2227 /* decode the property value */
2229 if (nvpair_type(pair
) == DATA_TYPE_NVLIST
) {
2231 VERIFY(nvpair_value_nvlist(pair
, &attrs
) == 0);
2232 if (nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
2237 /* Validate value type */
2238 if (err
== 0 && prop
== ZPROP_INVAL
) {
2239 if (zfs_prop_user(propname
)) {
2240 if (nvpair_type(propval
) != DATA_TYPE_STRING
)
2242 } else if (zfs_prop_userquota(propname
)) {
2243 if (nvpair_type(propval
) !=
2244 DATA_TYPE_UINT64_ARRAY
)
2249 } else if (err
== 0) {
2250 if (nvpair_type(propval
) == DATA_TYPE_STRING
) {
2251 if (zfs_prop_get_type(prop
) != PROP_TYPE_STRING
)
2253 } else if (nvpair_type(propval
) == DATA_TYPE_UINT64
) {
2256 VERIFY(nvpair_value_uint64(propval
,
2259 switch (zfs_prop_get_type(prop
)) {
2260 case PROP_TYPE_NUMBER
:
2262 case PROP_TYPE_STRING
:
2265 case PROP_TYPE_INDEX
:
2266 if (zfs_prop_index_to_string(prop
,
2267 intval
, &unused
) != 0)
2272 "unknown property type");
2279 /* Validate permissions */
2281 err
= zfs_check_settable(dsname
, pair
, CRED());
2284 err
= zfs_prop_set_special(dsname
, source
, pair
);
2287 * For better performance we build up a list of
2288 * properties to set in a single transaction.
2290 err
= nvlist_add_nvpair(genericnvl
, pair
);
2291 } else if (err
!= 0 && nvl
!= retrynvl
) {
2293 * This may be a spurious error caused by
2294 * receiving quota and reservation out of order.
2295 * Try again in a second pass.
2297 err
= nvlist_add_nvpair(retrynvl
, pair
);
2302 VERIFY(nvlist_add_int32(errors
, propname
, err
) == 0);
2305 if (nvl
!= retrynvl
&& !nvlist_empty(retrynvl
)) {
2310 if (!nvlist_empty(genericnvl
) &&
2311 dsl_props_set(dsname
, source
, genericnvl
) != 0) {
2313 * If this fails, we still want to set as many properties as we
2314 * can, so try setting them individually.
2317 while ((pair
= nvlist_next_nvpair(genericnvl
, pair
)) != NULL
) {
2318 const char *propname
= nvpair_name(pair
);
2322 if (nvpair_type(pair
) == DATA_TYPE_NVLIST
) {
2324 VERIFY(nvpair_value_nvlist(pair
, &attrs
) == 0);
2325 VERIFY(nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
2329 if (nvpair_type(propval
) == DATA_TYPE_STRING
) {
2330 VERIFY(nvpair_value_string(propval
,
2332 err
= dsl_prop_set(dsname
, propname
, source
, 1,
2333 strlen(strval
) + 1, strval
);
2335 VERIFY(nvpair_value_uint64(propval
,
2337 err
= dsl_prop_set(dsname
, propname
, source
, 8,
2342 VERIFY(nvlist_add_int32(errors
, propname
,
2347 nvlist_free(genericnvl
);
2348 nvlist_free(retrynvl
);
2350 if ((pair
= nvlist_next_nvpair(errors
, NULL
)) == NULL
) {
2351 nvlist_free(errors
);
2354 VERIFY(nvpair_value_int32(pair
, &rv
) == 0);
2357 if (errlist
== NULL
)
2358 nvlist_free(errors
);
2366 * Check that all the properties are valid user properties.
2369 zfs_check_userprops(char *fsname
, nvlist_t
*nvl
)
2371 nvpair_t
*pair
= NULL
;
2374 while ((pair
= nvlist_next_nvpair(nvl
, pair
)) != NULL
) {
2375 const char *propname
= nvpair_name(pair
);
2378 if (!zfs_prop_user(propname
) ||
2379 nvpair_type(pair
) != DATA_TYPE_STRING
)
2382 if ((error
= zfs_secpolicy_write_perms(fsname
,
2383 ZFS_DELEG_PERM_USERPROP
, CRED())))
2386 if (strlen(propname
) >= ZAP_MAXNAMELEN
)
2387 return (ENAMETOOLONG
);
2389 VERIFY(nvpair_value_string(pair
, &valstr
) == 0);
2390 if (strlen(valstr
) >= ZAP_MAXVALUELEN
)
2397 props_skip(nvlist_t
*props
, nvlist_t
*skipped
, nvlist_t
**newprops
)
2401 VERIFY(nvlist_alloc(newprops
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
2404 while ((pair
= nvlist_next_nvpair(props
, pair
)) != NULL
) {
2405 if (nvlist_exists(skipped
, nvpair_name(pair
)))
2408 VERIFY(nvlist_add_nvpair(*newprops
, pair
) == 0);
2413 clear_received_props(objset_t
*os
, const char *fs
, nvlist_t
*props
,
2417 nvlist_t
*cleared_props
= NULL
;
2418 props_skip(props
, skipped
, &cleared_props
);
2419 if (!nvlist_empty(cleared_props
)) {
2421 * Acts on local properties until the dataset has received
2422 * properties at least once on or after SPA_VERSION_RECVD_PROPS.
2424 zprop_source_t flags
= (ZPROP_SRC_NONE
|
2425 (dsl_prop_get_hasrecvd(os
) ? ZPROP_SRC_RECEIVED
: 0));
2426 err
= zfs_set_prop_nvlist(fs
, flags
, cleared_props
, NULL
);
2428 nvlist_free(cleared_props
);
2434 * zc_name name of filesystem
2435 * zc_value name of property to set
2436 * zc_nvlist_src{_size} nvlist of properties to apply
2437 * zc_cookie received properties flag
2440 * zc_nvlist_dst{_size} error for each unapplied received property
2443 zfs_ioc_set_prop(zfs_cmd_t
*zc
)
2446 boolean_t received
= zc
->zc_cookie
;
2447 zprop_source_t source
= (received
? ZPROP_SRC_RECEIVED
:
2449 nvlist_t
*errors
= NULL
;
2452 if ((error
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
2453 zc
->zc_iflags
, &nvl
)) != 0)
2457 nvlist_t
*origprops
;
2460 if (dmu_objset_hold(zc
->zc_name
, FTAG
, &os
) == 0) {
2461 if (dsl_prop_get_received(os
, &origprops
) == 0) {
2462 (void) clear_received_props(os
,
2463 zc
->zc_name
, origprops
, nvl
);
2464 nvlist_free(origprops
);
2467 dsl_prop_set_hasrecvd(os
);
2468 dmu_objset_rele(os
, FTAG
);
2472 error
= zfs_set_prop_nvlist(zc
->zc_name
, source
, nvl
, &errors
);
2474 if (zc
->zc_nvlist_dst
!= 0 && errors
!= NULL
) {
2475 (void) put_nvlist(zc
, errors
);
2478 nvlist_free(errors
);
2485 * zc_name name of filesystem
2486 * zc_value name of property to inherit
2487 * zc_cookie revert to received value if TRUE
2492 zfs_ioc_inherit_prop(zfs_cmd_t
*zc
)
2494 const char *propname
= zc
->zc_value
;
2495 zfs_prop_t prop
= zfs_name_to_prop(propname
);
2496 boolean_t received
= zc
->zc_cookie
;
2497 zprop_source_t source
= (received
2498 ? ZPROP_SRC_NONE
/* revert to received value, if any */
2499 : ZPROP_SRC_INHERITED
); /* explicitly inherit */
2508 * zfs_prop_set_special() expects properties in the form of an
2509 * nvpair with type info.
2511 if (prop
== ZPROP_INVAL
) {
2512 if (!zfs_prop_user(propname
))
2515 type
= PROP_TYPE_STRING
;
2516 } else if (prop
== ZFS_PROP_VOLSIZE
||
2517 prop
== ZFS_PROP_VERSION
) {
2520 type
= zfs_prop_get_type(prop
);
2523 VERIFY(nvlist_alloc(&dummy
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
2526 case PROP_TYPE_STRING
:
2527 VERIFY(0 == nvlist_add_string(dummy
, propname
, ""));
2529 case PROP_TYPE_NUMBER
:
2530 case PROP_TYPE_INDEX
:
2531 VERIFY(0 == nvlist_add_uint64(dummy
, propname
, 0));
2538 pair
= nvlist_next_nvpair(dummy
, NULL
);
2539 err
= zfs_prop_set_special(zc
->zc_name
, source
, pair
);
2542 return (err
); /* special property already handled */
2545 * Only check this in the non-received case. We want to allow
2546 * 'inherit -S' to revert non-inheritable properties like quota
2547 * and reservation to the received or default values even though
2548 * they are not considered inheritable.
2550 if (prop
!= ZPROP_INVAL
&& !zfs_prop_inheritable(prop
))
2554 /* the property name has been validated by zfs_secpolicy_inherit() */
2555 return (dsl_prop_set(zc
->zc_name
, zc
->zc_value
, source
, 0, 0, NULL
));
2559 zfs_ioc_pool_set_props(zfs_cmd_t
*zc
)
2566 if ((error
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
2567 zc
->zc_iflags
, &props
)))
2571 * If the only property is the configfile, then just do a spa_lookup()
2572 * to handle the faulted case.
2574 pair
= nvlist_next_nvpair(props
, NULL
);
2575 if (pair
!= NULL
&& strcmp(nvpair_name(pair
),
2576 zpool_prop_to_name(ZPOOL_PROP_CACHEFILE
)) == 0 &&
2577 nvlist_next_nvpair(props
, pair
) == NULL
) {
2578 mutex_enter(&spa_namespace_lock
);
2579 if ((spa
= spa_lookup(zc
->zc_name
)) != NULL
) {
2580 spa_configfile_set(spa
, props
, B_FALSE
);
2581 spa_config_sync(spa
, B_FALSE
, B_TRUE
);
2583 mutex_exit(&spa_namespace_lock
);
2590 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0) {
2595 error
= spa_prop_set(spa
, props
);
2598 spa_close(spa
, FTAG
);
2604 zfs_ioc_pool_get_props(zfs_cmd_t
*zc
)
2608 nvlist_t
*nvp
= NULL
;
2610 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0) {
2612 * If the pool is faulted, there may be properties we can still
2613 * get (such as altroot and cachefile), so attempt to get them
2616 mutex_enter(&spa_namespace_lock
);
2617 if ((spa
= spa_lookup(zc
->zc_name
)) != NULL
)
2618 error
= spa_prop_get(spa
, &nvp
);
2619 mutex_exit(&spa_namespace_lock
);
2621 error
= spa_prop_get(spa
, &nvp
);
2622 spa_close(spa
, FTAG
);
2625 if (error
== 0 && zc
->zc_nvlist_dst
!= 0)
2626 error
= put_nvlist(zc
, nvp
);
2636 * zc_name name of volume
2641 zfs_ioc_create_minor(zfs_cmd_t
*zc
)
2643 return (zvol_create_minor(zc
->zc_name
));
2648 * zc_name name of volume
2653 zfs_ioc_remove_minor(zfs_cmd_t
*zc
)
2655 return (zvol_remove_minor(zc
->zc_name
));
2660 * zc_name name of filesystem
2661 * zc_nvlist_src{_size} nvlist of delegated permissions
2662 * zc_perm_action allow/unallow flag
2667 zfs_ioc_set_fsacl(zfs_cmd_t
*zc
)
2670 nvlist_t
*fsaclnv
= NULL
;
2672 if ((error
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
2673 zc
->zc_iflags
, &fsaclnv
)) != 0)
2677 * Verify nvlist is constructed correctly
2679 if ((error
= zfs_deleg_verify_nvlist(fsaclnv
)) != 0) {
2680 nvlist_free(fsaclnv
);
2685 * If we don't have PRIV_SYS_MOUNT, then validate
2686 * that user is allowed to hand out each permission in
2690 error
= secpolicy_zfs(CRED());
2692 if (zc
->zc_perm_action
== B_FALSE
) {
2693 error
= dsl_deleg_can_allow(zc
->zc_name
,
2696 error
= dsl_deleg_can_unallow(zc
->zc_name
,
2702 error
= dsl_deleg_set(zc
->zc_name
, fsaclnv
, zc
->zc_perm_action
);
2704 nvlist_free(fsaclnv
);
2710 * zc_name name of filesystem
2713 * zc_nvlist_src{_size} nvlist of delegated permissions
2716 zfs_ioc_get_fsacl(zfs_cmd_t
*zc
)
2721 if ((error
= dsl_deleg_get(zc
->zc_name
, &nvp
)) == 0) {
2722 error
= put_nvlist(zc
, nvp
);
2731 zfs_create_cb(objset_t
*os
, void *arg
, cred_t
*cr
, dmu_tx_t
*tx
)
2733 zfs_creat_t
*zct
= arg
;
2735 zfs_create_fs(os
, cr
, zct
->zct_zplprops
, tx
);
2738 #define ZFS_PROP_UNDEFINED ((uint64_t)-1)
2742 * createprops list of properties requested by creator
2743 * default_zplver zpl version to use if unspecified in createprops
2744 * fuids_ok fuids allowed in this version of the spa?
2745 * os parent objset pointer (NULL if root fs)
2748 * zplprops values for the zplprops we attach to the master node object
2749 * is_ci true if requested file system will be purely case-insensitive
2751 * Determine the settings for utf8only, normalization and
2752 * casesensitivity. Specific values may have been requested by the
2753 * creator and/or we can inherit values from the parent dataset. If
2754 * the file system is of too early a vintage, a creator can not
2755 * request settings for these properties, even if the requested
2756 * setting is the default value. We don't actually want to create dsl
2757 * properties for these, so remove them from the source nvlist after
2761 zfs_fill_zplprops_impl(objset_t
*os
, uint64_t zplver
,
2762 boolean_t fuids_ok
, boolean_t sa_ok
, nvlist_t
*createprops
,
2763 nvlist_t
*zplprops
, boolean_t
*is_ci
)
2765 uint64_t sense
= ZFS_PROP_UNDEFINED
;
2766 uint64_t norm
= ZFS_PROP_UNDEFINED
;
2767 uint64_t u8
= ZFS_PROP_UNDEFINED
;
2770 ASSERT(zplprops
!= NULL
);
2773 * Pull out creator prop choices, if any.
2776 (void) nvlist_lookup_uint64(createprops
,
2777 zfs_prop_to_name(ZFS_PROP_VERSION
), &zplver
);
2778 (void) nvlist_lookup_uint64(createprops
,
2779 zfs_prop_to_name(ZFS_PROP_NORMALIZE
), &norm
);
2780 (void) nvlist_remove_all(createprops
,
2781 zfs_prop_to_name(ZFS_PROP_NORMALIZE
));
2782 (void) nvlist_lookup_uint64(createprops
,
2783 zfs_prop_to_name(ZFS_PROP_UTF8ONLY
), &u8
);
2784 (void) nvlist_remove_all(createprops
,
2785 zfs_prop_to_name(ZFS_PROP_UTF8ONLY
));
2786 (void) nvlist_lookup_uint64(createprops
,
2787 zfs_prop_to_name(ZFS_PROP_CASE
), &sense
);
2788 (void) nvlist_remove_all(createprops
,
2789 zfs_prop_to_name(ZFS_PROP_CASE
));
2793 * If the zpl version requested is whacky or the file system
2794 * or pool is version is too "young" to support normalization
2795 * and the creator tried to set a value for one of the props,
2798 if ((zplver
< ZPL_VERSION_INITIAL
|| zplver
> ZPL_VERSION
) ||
2799 (zplver
>= ZPL_VERSION_FUID
&& !fuids_ok
) ||
2800 (zplver
>= ZPL_VERSION_SA
&& !sa_ok
) ||
2801 (zplver
< ZPL_VERSION_NORMALIZATION
&&
2802 (norm
!= ZFS_PROP_UNDEFINED
|| u8
!= ZFS_PROP_UNDEFINED
||
2803 sense
!= ZFS_PROP_UNDEFINED
)))
2807 * Put the version in the zplprops
2809 VERIFY(nvlist_add_uint64(zplprops
,
2810 zfs_prop_to_name(ZFS_PROP_VERSION
), zplver
) == 0);
2812 if (norm
== ZFS_PROP_UNDEFINED
&&
2813 (error
= zfs_get_zplprop(os
, ZFS_PROP_NORMALIZE
, &norm
)) != 0)
2815 VERIFY(nvlist_add_uint64(zplprops
,
2816 zfs_prop_to_name(ZFS_PROP_NORMALIZE
), norm
) == 0);
2819 * If we're normalizing, names must always be valid UTF-8 strings.
2823 if (u8
== ZFS_PROP_UNDEFINED
&&
2824 (error
= zfs_get_zplprop(os
, ZFS_PROP_UTF8ONLY
, &u8
)) != 0)
2826 VERIFY(nvlist_add_uint64(zplprops
,
2827 zfs_prop_to_name(ZFS_PROP_UTF8ONLY
), u8
) == 0);
2829 if (sense
== ZFS_PROP_UNDEFINED
&&
2830 (error
= zfs_get_zplprop(os
, ZFS_PROP_CASE
, &sense
)) != 0)
2832 VERIFY(nvlist_add_uint64(zplprops
,
2833 zfs_prop_to_name(ZFS_PROP_CASE
), sense
) == 0);
2836 *is_ci
= (sense
== ZFS_CASE_INSENSITIVE
);
2842 zfs_fill_zplprops(const char *dataset
, nvlist_t
*createprops
,
2843 nvlist_t
*zplprops
, boolean_t
*is_ci
)
2845 boolean_t fuids_ok
, sa_ok
;
2846 uint64_t zplver
= ZPL_VERSION
;
2847 objset_t
*os
= NULL
;
2848 char parentname
[MAXNAMELEN
];
2854 (void) strlcpy(parentname
, dataset
, sizeof (parentname
));
2855 cp
= strrchr(parentname
, '/');
2859 if ((error
= spa_open(dataset
, &spa
, FTAG
)) != 0)
2862 spa_vers
= spa_version(spa
);
2863 spa_close(spa
, FTAG
);
2865 zplver
= zfs_zpl_version_map(spa_vers
);
2866 fuids_ok
= (zplver
>= ZPL_VERSION_FUID
);
2867 sa_ok
= (zplver
>= ZPL_VERSION_SA
);
2870 * Open parent object set so we can inherit zplprop values.
2872 if ((error
= dmu_objset_hold(parentname
, FTAG
, &os
)) != 0)
2875 error
= zfs_fill_zplprops_impl(os
, zplver
, fuids_ok
, sa_ok
, createprops
,
2877 dmu_objset_rele(os
, FTAG
);
2882 zfs_fill_zplprops_root(uint64_t spa_vers
, nvlist_t
*createprops
,
2883 nvlist_t
*zplprops
, boolean_t
*is_ci
)
2887 uint64_t zplver
= ZPL_VERSION
;
2890 zplver
= zfs_zpl_version_map(spa_vers
);
2891 fuids_ok
= (zplver
>= ZPL_VERSION_FUID
);
2892 sa_ok
= (zplver
>= ZPL_VERSION_SA
);
2894 error
= zfs_fill_zplprops_impl(NULL
, zplver
, fuids_ok
, sa_ok
,
2895 createprops
, zplprops
, is_ci
);
2901 * zc_objset_type type of objset to create (fs vs zvol)
2902 * zc_name name of new objset
2903 * zc_value name of snapshot to clone from (may be empty)
2904 * zc_nvlist_src{_size} nvlist of properties to apply
2909 zfs_ioc_create(zfs_cmd_t
*zc
)
2914 nvlist_t
*nvprops
= NULL
;
2915 void (*cbfunc
)(objset_t
*os
, void *arg
, cred_t
*cr
, dmu_tx_t
*tx
);
2916 dmu_objset_type_t type
= zc
->zc_objset_type
;
2921 cbfunc
= zfs_create_cb
;
2925 cbfunc
= zvol_create_cb
;
2932 if (strchr(zc
->zc_name
, '@') ||
2933 strchr(zc
->zc_name
, '%'))
2936 if (zc
->zc_nvlist_src
!= 0 &&
2937 (error
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
2938 zc
->zc_iflags
, &nvprops
)) != 0)
2941 zct
.zct_zplprops
= NULL
;
2942 zct
.zct_props
= nvprops
;
2944 if (zc
->zc_value
[0] != '\0') {
2946 * We're creating a clone of an existing snapshot.
2948 zc
->zc_value
[sizeof (zc
->zc_value
) - 1] = '\0';
2949 if (dataset_namecheck(zc
->zc_value
, NULL
, NULL
) != 0) {
2950 nvlist_free(nvprops
);
2954 error
= dmu_objset_hold(zc
->zc_value
, FTAG
, &clone
);
2956 nvlist_free(nvprops
);
2960 error
= dmu_objset_clone(zc
->zc_name
, dmu_objset_ds(clone
), 0);
2961 dmu_objset_rele(clone
, FTAG
);
2963 nvlist_free(nvprops
);
2967 boolean_t is_insensitive
= B_FALSE
;
2969 if (cbfunc
== NULL
) {
2970 nvlist_free(nvprops
);
2974 if (type
== DMU_OST_ZVOL
) {
2975 uint64_t volsize
, volblocksize
;
2977 if (nvprops
== NULL
||
2978 nvlist_lookup_uint64(nvprops
,
2979 zfs_prop_to_name(ZFS_PROP_VOLSIZE
),
2981 nvlist_free(nvprops
);
2985 if ((error
= nvlist_lookup_uint64(nvprops
,
2986 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE
),
2987 &volblocksize
)) != 0 && error
!= ENOENT
) {
2988 nvlist_free(nvprops
);
2993 volblocksize
= zfs_prop_default_numeric(
2994 ZFS_PROP_VOLBLOCKSIZE
);
2996 if ((error
= zvol_check_volblocksize(
2997 volblocksize
)) != 0 ||
2998 (error
= zvol_check_volsize(volsize
,
2999 volblocksize
)) != 0) {
3000 nvlist_free(nvprops
);
3003 } else if (type
== DMU_OST_ZFS
) {
3007 * We have to have normalization and
3008 * case-folding flags correct when we do the
3009 * file system creation, so go figure them out
3012 VERIFY(nvlist_alloc(&zct
.zct_zplprops
,
3013 NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
3014 error
= zfs_fill_zplprops(zc
->zc_name
, nvprops
,
3015 zct
.zct_zplprops
, &is_insensitive
);
3017 nvlist_free(nvprops
);
3018 nvlist_free(zct
.zct_zplprops
);
3022 error
= dmu_objset_create(zc
->zc_name
, type
,
3023 is_insensitive
? DS_FLAG_CI_DATASET
: 0, cbfunc
, &zct
);
3024 nvlist_free(zct
.zct_zplprops
);
3028 * It would be nice to do this atomically.
3031 error
= zfs_set_prop_nvlist(zc
->zc_name
, ZPROP_SRC_LOCAL
,
3034 (void) dmu_objset_destroy(zc
->zc_name
, B_FALSE
);
3036 nvlist_free(nvprops
);
3042 * zc_name name of filesystem
3043 * zc_value short name of snapshot
3044 * zc_cookie recursive flag
3045 * zc_nvlist_src[_size] property list
3048 * zc_value short snapname (i.e. part after the '@')
3051 zfs_ioc_snapshot(zfs_cmd_t
*zc
)
3053 nvlist_t
*nvprops
= NULL
;
3055 boolean_t recursive
= zc
->zc_cookie
;
3057 if (snapshot_namecheck(zc
->zc_value
, NULL
, NULL
) != 0)
3060 if (zc
->zc_nvlist_src
!= 0 &&
3061 (error
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
3062 zc
->zc_iflags
, &nvprops
)) != 0)
3065 error
= zfs_check_userprops(zc
->zc_name
, nvprops
);
3069 if (!nvlist_empty(nvprops
) &&
3070 zfs_earlier_version(zc
->zc_name
, SPA_VERSION_SNAP_PROPS
)) {
3075 error
= dmu_objset_snapshot(zc
->zc_name
, zc
->zc_value
, NULL
,
3076 nvprops
, recursive
, B_FALSE
, -1);
3079 nvlist_free(nvprops
);
3085 * name dataset name, or when 'arg == NULL' the full snapshot name
3086 * arg short snapshot name (i.e. part after the '@')
3089 zfs_unmount_snap(const char *name
, void *arg
)
3091 zfs_sb_t
*zsb
= NULL
;
3099 dsname
= strdup(name
);
3100 snapname
= strdup(arg
);
3102 ptr
= strchr(name
, '@');
3104 dsname
= strdup(name
);
3105 dsname
[ptr
- name
] = '\0';
3106 snapname
= strdup(ptr
+ 1);
3112 fullname
= kmem_asprintf("%s@%s", dsname
, snapname
);
3114 error
= zfs_sb_hold(dsname
, FTAG
, &zsb
, B_FALSE
);
3116 error
= zfsctl_unmount_snapshot(zsb
, fullname
, MNT_FORCE
);
3117 zfs_sb_rele(zsb
, FTAG
);
3119 /* Allow ENOENT for consistency with upstream */
3120 if (error
== ENOENT
)
3133 * zc_name name of filesystem, snaps must be under it
3134 * zc_nvlist_src[_size] full names of snapshots to destroy
3135 * zc_defer_destroy mark for deferred destroy
3138 * zc_name on failure, name of failed snapshot
3141 zfs_ioc_destroy_snaps_nvl(zfs_cmd_t
*zc
)
3147 if ((err
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
3148 zc
->zc_iflags
, &nvl
)) != 0)
3151 len
= strlen(zc
->zc_name
);
3152 for (pair
= nvlist_next_nvpair(nvl
, NULL
); pair
!= NULL
;
3153 pair
= nvlist_next_nvpair(nvl
, pair
)) {
3154 const char *name
= nvpair_name(pair
);
3156 * The snap name must be underneath the zc_name. This ensures
3157 * that our permission checks were legitimate.
3159 if (strncmp(zc
->zc_name
, name
, len
) != 0 ||
3160 (name
[len
] != '@' && name
[len
] != '/')) {
3165 (void) zfs_unmount_snap(name
, NULL
);
3166 (void) zvol_remove_minor(name
);
3169 err
= dmu_snapshots_destroy_nvl(nvl
, zc
->zc_defer_destroy
,
3177 * zc_name name of dataset to destroy
3178 * zc_objset_type type of objset
3179 * zc_defer_destroy mark for deferred destroy
3184 zfs_ioc_destroy(zfs_cmd_t
*zc
)
3187 if (strchr(zc
->zc_name
, '@') && zc
->zc_objset_type
== DMU_OST_ZFS
) {
3188 err
= zfs_unmount_snap(zc
->zc_name
, NULL
);
3193 err
= dmu_objset_destroy(zc
->zc_name
, zc
->zc_defer_destroy
);
3194 if (zc
->zc_objset_type
== DMU_OST_ZVOL
&& err
== 0)
3195 (void) zvol_remove_minor(zc
->zc_name
);
3201 * zc_name name of dataset to rollback (to most recent snapshot)
3206 zfs_ioc_rollback(zfs_cmd_t
*zc
)
3208 dsl_dataset_t
*ds
, *clone
;
3213 error
= dsl_dataset_hold(zc
->zc_name
, FTAG
, &ds
);
3217 /* must not be a snapshot */
3218 if (dsl_dataset_is_snapshot(ds
)) {
3219 dsl_dataset_rele(ds
, FTAG
);
3223 /* must have a most recent snapshot */
3224 if (ds
->ds_phys
->ds_prev_snap_txg
< TXG_INITIAL
) {
3225 dsl_dataset_rele(ds
, FTAG
);
3230 * Create clone of most recent snapshot.
3232 clone_name
= kmem_asprintf("%s/%%rollback", zc
->zc_name
);
3233 error
= dmu_objset_clone(clone_name
, ds
->ds_prev
, DS_FLAG_INCONSISTENT
);
3237 error
= dsl_dataset_own(clone_name
, B_TRUE
, FTAG
, &clone
);
3244 if (get_zfs_sb(zc
->zc_name
, &zsb
) == 0) {
3245 error
= zfs_suspend_fs(zsb
);
3249 if (dsl_dataset_tryown(ds
, B_FALSE
, FTAG
)) {
3250 error
= dsl_dataset_clone_swap(clone
, ds
,
3252 dsl_dataset_disown(ds
, FTAG
);
3257 resume_err
= zfs_resume_fs(zsb
, zc
->zc_name
);
3258 error
= error
? error
: resume_err
;
3260 deactivate_super(zsb
->z_sb
);
3262 if (dsl_dataset_tryown(ds
, B_FALSE
, FTAG
)) {
3263 error
= dsl_dataset_clone_swap(clone
, ds
, B_TRUE
);
3264 dsl_dataset_disown(ds
, FTAG
);
3272 * Destroy clone (which also closes it).
3274 (void) dsl_dataset_destroy(clone
, FTAG
, B_FALSE
);
3277 strfree(clone_name
);
3279 dsl_dataset_rele(ds
, FTAG
);
3285 * zc_name old name of dataset
3286 * zc_value new name of dataset
3287 * zc_cookie recursive flag (only valid for snapshots)
3292 zfs_ioc_rename(zfs_cmd_t
*zc
)
3294 boolean_t recursive
= zc
->zc_cookie
& 1;
3297 zc
->zc_value
[sizeof (zc
->zc_value
) - 1] = '\0';
3298 if (dataset_namecheck(zc
->zc_value
, NULL
, NULL
) != 0 ||
3299 strchr(zc
->zc_value
, '%'))
3303 * Unmount snapshot unless we're doing a recursive rename,
3304 * in which case the dataset code figures out which snapshots
3307 if (!recursive
&& strchr(zc
->zc_name
, '@') != NULL
&&
3308 zc
->zc_objset_type
== DMU_OST_ZFS
) {
3309 err
= zfs_unmount_snap(zc
->zc_name
, NULL
);
3314 err
= dmu_objset_rename(zc
->zc_name
, zc
->zc_value
, recursive
);
3315 if ((err
== 0) && (zc
->zc_objset_type
== DMU_OST_ZVOL
)) {
3316 (void) zvol_remove_minor(zc
->zc_name
);
3317 (void) zvol_create_minor(zc
->zc_value
);
3324 zfs_check_settable(const char *dsname
, nvpair_t
*pair
, cred_t
*cr
)
3326 const char *propname
= nvpair_name(pair
);
3327 boolean_t issnap
= (strchr(dsname
, '@') != NULL
);
3328 zfs_prop_t prop
= zfs_name_to_prop(propname
);
3332 if (prop
== ZPROP_INVAL
) {
3333 if (zfs_prop_user(propname
)) {
3334 if ((err
= zfs_secpolicy_write_perms(dsname
,
3335 ZFS_DELEG_PERM_USERPROP
, cr
)))
3340 if (!issnap
&& zfs_prop_userquota(propname
)) {
3341 const char *perm
= NULL
;
3342 const char *uq_prefix
=
3343 zfs_userquota_prop_prefixes
[ZFS_PROP_USERQUOTA
];
3344 const char *gq_prefix
=
3345 zfs_userquota_prop_prefixes
[ZFS_PROP_GROUPQUOTA
];
3347 if (strncmp(propname
, uq_prefix
,
3348 strlen(uq_prefix
)) == 0) {
3349 perm
= ZFS_DELEG_PERM_USERQUOTA
;
3350 } else if (strncmp(propname
, gq_prefix
,
3351 strlen(gq_prefix
)) == 0) {
3352 perm
= ZFS_DELEG_PERM_GROUPQUOTA
;
3354 /* USERUSED and GROUPUSED are read-only */
3358 if ((err
= zfs_secpolicy_write_perms(dsname
, perm
, cr
)))
3369 if (nvpair_type(pair
) == DATA_TYPE_NVLIST
) {
3371 * dsl_prop_get_all_impl() returns properties in this
3375 VERIFY(nvpair_value_nvlist(pair
, &attrs
) == 0);
3376 VERIFY(nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
3381 * Check that this value is valid for this pool version
3384 case ZFS_PROP_COMPRESSION
:
3386 * If the user specified gzip compression, make sure
3387 * the SPA supports it. We ignore any errors here since
3388 * we'll catch them later.
3390 if (nvpair_type(pair
) == DATA_TYPE_UINT64
&&
3391 nvpair_value_uint64(pair
, &intval
) == 0) {
3392 if (intval
>= ZIO_COMPRESS_GZIP_1
&&
3393 intval
<= ZIO_COMPRESS_GZIP_9
&&
3394 zfs_earlier_version(dsname
,
3395 SPA_VERSION_GZIP_COMPRESSION
)) {
3399 if (intval
== ZIO_COMPRESS_ZLE
&&
3400 zfs_earlier_version(dsname
,
3401 SPA_VERSION_ZLE_COMPRESSION
))
3405 * If this is a bootable dataset then
3406 * verify that the compression algorithm
3407 * is supported for booting. We must return
3408 * something other than ENOTSUP since it
3409 * implies a downrev pool version.
3411 if (zfs_is_bootfs(dsname
) &&
3412 !BOOTFS_COMPRESS_VALID(intval
)) {
3418 case ZFS_PROP_COPIES
:
3419 if (zfs_earlier_version(dsname
, SPA_VERSION_DITTO_BLOCKS
))
3423 case ZFS_PROP_DEDUP
:
3424 if (zfs_earlier_version(dsname
, SPA_VERSION_DEDUP
))
3428 case ZFS_PROP_SHARESMB
:
3429 if (zpl_earlier_version(dsname
, ZPL_VERSION_FUID
))
3433 case ZFS_PROP_ACLINHERIT
:
3434 if (nvpair_type(pair
) == DATA_TYPE_UINT64
&&
3435 nvpair_value_uint64(pair
, &intval
) == 0) {
3436 if (intval
== ZFS_ACL_PASSTHROUGH_X
&&
3437 zfs_earlier_version(dsname
,
3438 SPA_VERSION_PASSTHROUGH_X
))
3446 return (zfs_secpolicy_setprop(dsname
, prop
, pair
, CRED()));
3450 * Removes properties from the given props list that fail permission checks
3451 * needed to clear them and to restore them in case of a receive error. For each
3452 * property, make sure we have both set and inherit permissions.
3454 * Returns the first error encountered if any permission checks fail. If the
3455 * caller provides a non-NULL errlist, it also gives the complete list of names
3456 * of all the properties that failed a permission check along with the
3457 * corresponding error numbers. The caller is responsible for freeing the
3460 * If every property checks out successfully, zero is returned and the list
3461 * pointed at by errlist is NULL.
3464 zfs_check_clearable(char *dataset
, nvlist_t
*props
, nvlist_t
**errlist
)
3467 nvpair_t
*pair
, *next_pair
;
3474 VERIFY(nvlist_alloc(&errors
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
3476 zc
= kmem_alloc(sizeof (zfs_cmd_t
), KM_SLEEP
| KM_NODEBUG
);
3477 (void) strcpy(zc
->zc_name
, dataset
);
3478 pair
= nvlist_next_nvpair(props
, NULL
);
3479 while (pair
!= NULL
) {
3480 next_pair
= nvlist_next_nvpair(props
, pair
);
3482 (void) strcpy(zc
->zc_value
, nvpair_name(pair
));
3483 if ((err
= zfs_check_settable(dataset
, pair
, CRED())) != 0 ||
3484 (err
= zfs_secpolicy_inherit(zc
, CRED())) != 0) {
3485 VERIFY(nvlist_remove_nvpair(props
, pair
) == 0);
3486 VERIFY(nvlist_add_int32(errors
,
3487 zc
->zc_value
, err
) == 0);
3491 kmem_free(zc
, sizeof (zfs_cmd_t
));
3493 if ((pair
= nvlist_next_nvpair(errors
, NULL
)) == NULL
) {
3494 nvlist_free(errors
);
3497 VERIFY(nvpair_value_int32(pair
, &rv
) == 0);
3500 if (errlist
== NULL
)
3501 nvlist_free(errors
);
3509 propval_equals(nvpair_t
*p1
, nvpair_t
*p2
)
3511 if (nvpair_type(p1
) == DATA_TYPE_NVLIST
) {
3512 /* dsl_prop_get_all_impl() format */
3514 VERIFY(nvpair_value_nvlist(p1
, &attrs
) == 0);
3515 VERIFY(nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
3519 if (nvpair_type(p2
) == DATA_TYPE_NVLIST
) {
3521 VERIFY(nvpair_value_nvlist(p2
, &attrs
) == 0);
3522 VERIFY(nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
3526 if (nvpair_type(p1
) != nvpair_type(p2
))
3529 if (nvpair_type(p1
) == DATA_TYPE_STRING
) {
3530 char *valstr1
, *valstr2
;
3532 VERIFY(nvpair_value_string(p1
, (char **)&valstr1
) == 0);
3533 VERIFY(nvpair_value_string(p2
, (char **)&valstr2
) == 0);
3534 return (strcmp(valstr1
, valstr2
) == 0);
3536 uint64_t intval1
, intval2
;
3538 VERIFY(nvpair_value_uint64(p1
, &intval1
) == 0);
3539 VERIFY(nvpair_value_uint64(p2
, &intval2
) == 0);
3540 return (intval1
== intval2
);
3545 * Remove properties from props if they are not going to change (as determined
3546 * by comparison with origprops). Remove them from origprops as well, since we
3547 * do not need to clear or restore properties that won't change.
3550 props_reduce(nvlist_t
*props
, nvlist_t
*origprops
)
3552 nvpair_t
*pair
, *next_pair
;
3554 if (origprops
== NULL
)
3555 return; /* all props need to be received */
3557 pair
= nvlist_next_nvpair(props
, NULL
);
3558 while (pair
!= NULL
) {
3559 const char *propname
= nvpair_name(pair
);
3562 next_pair
= nvlist_next_nvpair(props
, pair
);
3564 if ((nvlist_lookup_nvpair(origprops
, propname
,
3565 &match
) != 0) || !propval_equals(pair
, match
))
3566 goto next
; /* need to set received value */
3568 /* don't clear the existing received value */
3569 (void) nvlist_remove_nvpair(origprops
, match
);
3570 /* don't bother receiving the property */
3571 (void) nvlist_remove_nvpair(props
, pair
);
3578 static boolean_t zfs_ioc_recv_inject_err
;
3583 * zc_name name of containing filesystem
3584 * zc_nvlist_src{_size} nvlist of properties to apply
3585 * zc_value name of snapshot to create
3586 * zc_string name of clone origin (if DRR_FLAG_CLONE)
3587 * zc_cookie file descriptor to recv from
3588 * zc_begin_record the BEGIN record of the stream (not byteswapped)
3589 * zc_guid force flag
3590 * zc_cleanup_fd cleanup-on-exit file descriptor
3591 * zc_action_handle handle for this guid/ds mapping (or zero on first call)
3594 * zc_cookie number of bytes read
3595 * zc_nvlist_dst{_size} error for each unapplied received property
3596 * zc_obj zprop_errflags_t
3597 * zc_action_handle handle for this guid/ds mapping
3600 zfs_ioc_recv(zfs_cmd_t
*zc
)
3604 dmu_recv_cookie_t drc
;
3605 boolean_t force
= (boolean_t
)zc
->zc_guid
;
3608 int props_error
= 0;
3611 nvlist_t
*props
= NULL
; /* sent properties */
3612 nvlist_t
*origprops
= NULL
; /* existing properties */
3613 objset_t
*origin
= NULL
;
3615 char tofs
[ZFS_MAXNAMELEN
];
3616 boolean_t first_recvd_props
= B_FALSE
;
3618 if (dataset_namecheck(zc
->zc_value
, NULL
, NULL
) != 0 ||
3619 strchr(zc
->zc_value
, '@') == NULL
||
3620 strchr(zc
->zc_value
, '%'))
3623 (void) strcpy(tofs
, zc
->zc_value
);
3624 tosnap
= strchr(tofs
, '@');
3627 if (zc
->zc_nvlist_src
!= 0 &&
3628 (error
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
3629 zc
->zc_iflags
, &props
)) != 0)
3639 VERIFY(nvlist_alloc(&errors
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
3641 if (props
&& dmu_objset_hold(tofs
, FTAG
, &os
) == 0) {
3642 if ((spa_version(os
->os_spa
) >= SPA_VERSION_RECVD_PROPS
) &&
3643 !dsl_prop_get_hasrecvd(os
)) {
3644 first_recvd_props
= B_TRUE
;
3648 * If new received properties are supplied, they are to
3649 * completely replace the existing received properties, so stash
3650 * away the existing ones.
3652 if (dsl_prop_get_received(os
, &origprops
) == 0) {
3653 nvlist_t
*errlist
= NULL
;
3655 * Don't bother writing a property if its value won't
3656 * change (and avoid the unnecessary security checks).
3658 * The first receive after SPA_VERSION_RECVD_PROPS is a
3659 * special case where we blow away all local properties
3662 if (!first_recvd_props
)
3663 props_reduce(props
, origprops
);
3664 if (zfs_check_clearable(tofs
, origprops
,
3666 (void) nvlist_merge(errors
, errlist
, 0);
3667 nvlist_free(errlist
);
3670 dmu_objset_rele(os
, FTAG
);
3673 if (zc
->zc_string
[0]) {
3674 error
= dmu_objset_hold(zc
->zc_string
, FTAG
, &origin
);
3679 error
= dmu_recv_begin(tofs
, tosnap
, zc
->zc_top_ds
,
3680 &zc
->zc_begin_record
, force
, origin
, &drc
);
3682 dmu_objset_rele(origin
, FTAG
);
3687 * Set properties before we receive the stream so that they are applied
3688 * to the new data. Note that we must call dmu_recv_stream() if
3689 * dmu_recv_begin() succeeds.
3694 if (dmu_objset_from_ds(drc
.drc_logical_ds
, &os
) == 0) {
3695 if (drc
.drc_newfs
) {
3696 if (spa_version(os
->os_spa
) >=
3697 SPA_VERSION_RECVD_PROPS
)
3698 first_recvd_props
= B_TRUE
;
3699 } else if (origprops
!= NULL
) {
3700 if (clear_received_props(os
, tofs
, origprops
,
3701 first_recvd_props
? NULL
: props
) != 0)
3702 zc
->zc_obj
|= ZPROP_ERR_NOCLEAR
;
3704 zc
->zc_obj
|= ZPROP_ERR_NOCLEAR
;
3706 dsl_prop_set_hasrecvd(os
);
3707 } else if (!drc
.drc_newfs
) {
3708 zc
->zc_obj
|= ZPROP_ERR_NOCLEAR
;
3711 (void) zfs_set_prop_nvlist(tofs
, ZPROP_SRC_RECEIVED
,
3713 (void) nvlist_merge(errors
, errlist
, 0);
3714 nvlist_free(errlist
);
3717 if (fit_error_list(zc
, &errors
) != 0 || put_nvlist(zc
, errors
) != 0) {
3719 * Caller made zc->zc_nvlist_dst less than the minimum expected
3720 * size or supplied an invalid address.
3722 props_error
= EINVAL
;
3726 error
= dmu_recv_stream(&drc
, fp
->f_vnode
, &off
, zc
->zc_cleanup_fd
,
3727 &zc
->zc_action_handle
);
3730 zfs_sb_t
*zsb
= NULL
;
3732 if (get_zfs_sb(tofs
, &zsb
) == 0) {
3736 error
= zfs_suspend_fs(zsb
);
3738 * If the suspend fails, then the recv_end will
3739 * likely also fail, and clean up after itself.
3741 end_err
= dmu_recv_end(&drc
);
3743 error
= zfs_resume_fs(zsb
, tofs
);
3744 error
= error
? error
: end_err
;
3745 deactivate_super(zsb
->z_sb
);
3747 error
= dmu_recv_end(&drc
);
3751 zc
->zc_cookie
= off
- fp
->f_offset
;
3752 if (VOP_SEEK(fp
->f_vnode
, fp
->f_offset
, &off
, NULL
) == 0)
3756 if (zfs_ioc_recv_inject_err
) {
3757 zfs_ioc_recv_inject_err
= B_FALSE
;
3762 * On error, restore the original props.
3764 if (error
&& props
) {
3765 if (dmu_objset_hold(tofs
, FTAG
, &os
) == 0) {
3766 if (clear_received_props(os
, tofs
, props
, NULL
) != 0) {
3768 * We failed to clear the received properties.
3769 * Since we may have left a $recvd value on the
3770 * system, we can't clear the $hasrecvd flag.
3772 zc
->zc_obj
|= ZPROP_ERR_NORESTORE
;
3773 } else if (first_recvd_props
) {
3774 dsl_prop_unset_hasrecvd(os
);
3776 dmu_objset_rele(os
, FTAG
);
3777 } else if (!drc
.drc_newfs
) {
3778 /* We failed to clear the received properties. */
3779 zc
->zc_obj
|= ZPROP_ERR_NORESTORE
;
3782 if (origprops
== NULL
&& !drc
.drc_newfs
) {
3783 /* We failed to stash the original properties. */
3784 zc
->zc_obj
|= ZPROP_ERR_NORESTORE
;
3788 * dsl_props_set() will not convert RECEIVED to LOCAL on or
3789 * after SPA_VERSION_RECVD_PROPS, so we need to specify LOCAL
3790 * explictly if we're restoring local properties cleared in the
3791 * first new-style receive.
3793 if (origprops
!= NULL
&&
3794 zfs_set_prop_nvlist(tofs
, (first_recvd_props
?
3795 ZPROP_SRC_LOCAL
: ZPROP_SRC_RECEIVED
),
3796 origprops
, NULL
) != 0) {
3798 * We stashed the original properties but failed to
3801 zc
->zc_obj
|= ZPROP_ERR_NORESTORE
;
3806 nvlist_free(origprops
);
3807 nvlist_free(errors
);
3811 error
= props_error
;
3818 * zc_name name of snapshot to send
3819 * zc_cookie file descriptor to send stream to
3820 * zc_obj fromorigin flag (mutually exclusive with zc_fromobj)
3821 * zc_sendobj objsetid of snapshot to send
3822 * zc_fromobj objsetid of incremental fromsnap (may be zero)
3823 * zc_guid if set, estimate size of stream only. zc_cookie is ignored.
3824 * output size in zc_objset_type.
3829 zfs_ioc_send(zfs_cmd_t
*zc
)
3831 objset_t
*fromsnap
= NULL
;
3836 dsl_dataset_t
*dsfrom
= NULL
;
3839 boolean_t estimate
= (zc
->zc_guid
!= 0);
3841 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
3845 dp
= spa_get_dsl(spa
);
3846 rw_enter(&dp
->dp_config_rwlock
, RW_READER
);
3847 error
= dsl_dataset_hold_obj(dp
, zc
->zc_sendobj
, FTAG
, &ds
);
3848 rw_exit(&dp
->dp_config_rwlock
);
3850 spa_close(spa
, FTAG
);
3854 error
= dmu_objset_from_ds(ds
, &tosnap
);
3856 dsl_dataset_rele(ds
, FTAG
);
3857 spa_close(spa
, FTAG
);
3861 if (zc
->zc_fromobj
!= 0) {
3862 rw_enter(&dp
->dp_config_rwlock
, RW_READER
);
3863 error
= dsl_dataset_hold_obj(dp
, zc
->zc_fromobj
, FTAG
, &dsfrom
);
3864 rw_exit(&dp
->dp_config_rwlock
);
3865 spa_close(spa
, FTAG
);
3867 dsl_dataset_rele(ds
, FTAG
);
3870 error
= dmu_objset_from_ds(dsfrom
, &fromsnap
);
3872 dsl_dataset_rele(dsfrom
, FTAG
);
3873 dsl_dataset_rele(ds
, FTAG
);
3877 spa_close(spa
, FTAG
);
3881 error
= dmu_send_estimate(tosnap
, fromsnap
, zc
->zc_obj
,
3882 &zc
->zc_objset_type
);
3884 file_t
*fp
= getf(zc
->zc_cookie
);
3886 dsl_dataset_rele(ds
, FTAG
);
3888 dsl_dataset_rele(dsfrom
, FTAG
);
3893 error
= dmu_sendbackup(tosnap
, fromsnap
, zc
->zc_obj
,
3896 if (VOP_SEEK(fp
->f_vnode
, fp
->f_offset
, &off
, NULL
) == 0)
3898 releasef(zc
->zc_cookie
);
3901 dsl_dataset_rele(dsfrom
, FTAG
);
3902 dsl_dataset_rele(ds
, FTAG
);
3907 zfs_ioc_inject_fault(zfs_cmd_t
*zc
)
3911 error
= zio_inject_fault(zc
->zc_name
, (int)zc
->zc_guid
, &id
,
3912 &zc
->zc_inject_record
);
3915 zc
->zc_guid
= (uint64_t)id
;
3921 zfs_ioc_clear_fault(zfs_cmd_t
*zc
)
3923 return (zio_clear_fault((int)zc
->zc_guid
));
3927 zfs_ioc_inject_list_next(zfs_cmd_t
*zc
)
3929 int id
= (int)zc
->zc_guid
;
3932 error
= zio_inject_list_next(&id
, zc
->zc_name
, sizeof (zc
->zc_name
),
3933 &zc
->zc_inject_record
);
3941 zfs_ioc_error_log(zfs_cmd_t
*zc
)
3945 size_t count
= (size_t)zc
->zc_nvlist_dst_size
;
3947 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
3950 error
= spa_get_errlog(spa
, (void *)(uintptr_t)zc
->zc_nvlist_dst
,
3953 zc
->zc_nvlist_dst_size
= count
;
3955 zc
->zc_nvlist_dst_size
= spa_get_errlog_size(spa
);
3957 spa_close(spa
, FTAG
);
3963 zfs_ioc_clear(zfs_cmd_t
*zc
)
3970 * On zpool clear we also fix up missing slogs
3972 mutex_enter(&spa_namespace_lock
);
3973 spa
= spa_lookup(zc
->zc_name
);
3975 mutex_exit(&spa_namespace_lock
);
3978 if (spa_get_log_state(spa
) == SPA_LOG_MISSING
) {
3979 /* we need to let spa_open/spa_load clear the chains */
3980 spa_set_log_state(spa
, SPA_LOG_CLEAR
);
3982 spa
->spa_last_open_failed
= 0;
3983 mutex_exit(&spa_namespace_lock
);
3985 if (zc
->zc_cookie
& ZPOOL_NO_REWIND
) {
3986 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
3989 nvlist_t
*config
= NULL
;
3991 if (zc
->zc_nvlist_src
== 0)
3994 if ((error
= get_nvlist(zc
->zc_nvlist_src
,
3995 zc
->zc_nvlist_src_size
, zc
->zc_iflags
, &policy
)) == 0) {
3996 error
= spa_open_rewind(zc
->zc_name
, &spa
, FTAG
,
3998 if (config
!= NULL
) {
4001 if ((err
= put_nvlist(zc
, config
)) != 0)
4003 nvlist_free(config
);
4005 nvlist_free(policy
);
4012 spa_vdev_state_enter(spa
, SCL_NONE
);
4014 if (zc
->zc_guid
== 0) {
4017 vd
= spa_lookup_by_guid(spa
, zc
->zc_guid
, B_TRUE
);
4019 (void) spa_vdev_state_exit(spa
, NULL
, ENODEV
);
4020 spa_close(spa
, FTAG
);
4025 vdev_clear(spa
, vd
);
4027 (void) spa_vdev_state_exit(spa
, NULL
, 0);
4030 * Resume any suspended I/Os.
4032 if (zio_resume(spa
) != 0)
4035 spa_close(spa
, FTAG
);
4041 zfs_ioc_pool_reopen(zfs_cmd_t
*zc
)
4046 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
4050 spa_vdev_state_enter(spa
, SCL_NONE
);
4051 vdev_reopen(spa
->spa_root_vdev
);
4052 (void) spa_vdev_state_exit(spa
, NULL
, 0);
4053 spa_close(spa
, FTAG
);
4058 * zc_name name of filesystem
4059 * zc_value name of origin snapshot
4062 * zc_string name of conflicting snapshot, if there is one
4065 zfs_ioc_promote(zfs_cmd_t
*zc
)
4070 * We don't need to unmount *all* the origin fs's snapshots, but
4073 cp
= strchr(zc
->zc_value
, '@');
4076 (void) dmu_objset_find(zc
->zc_value
,
4077 zfs_unmount_snap
, NULL
, DS_FIND_SNAPSHOTS
);
4078 return (dsl_dataset_promote(zc
->zc_name
, zc
->zc_string
));
4082 * Retrieve a single {user|group}{used|quota}@... property.
4085 * zc_name name of filesystem
4086 * zc_objset_type zfs_userquota_prop_t
4087 * zc_value domain name (eg. "S-1-234-567-89")
4088 * zc_guid RID/UID/GID
4091 * zc_cookie property value
4094 zfs_ioc_userspace_one(zfs_cmd_t
*zc
)
4099 if (zc
->zc_objset_type
>= ZFS_NUM_USERQUOTA_PROPS
)
4102 error
= zfs_sb_hold(zc
->zc_name
, FTAG
, &zsb
, B_FALSE
);
4106 error
= zfs_userspace_one(zsb
,
4107 zc
->zc_objset_type
, zc
->zc_value
, zc
->zc_guid
, &zc
->zc_cookie
);
4108 zfs_sb_rele(zsb
, FTAG
);
4115 * zc_name name of filesystem
4116 * zc_cookie zap cursor
4117 * zc_objset_type zfs_userquota_prop_t
4118 * zc_nvlist_dst[_size] buffer to fill (not really an nvlist)
4121 * zc_nvlist_dst[_size] data buffer (array of zfs_useracct_t)
4122 * zc_cookie zap cursor
4125 zfs_ioc_userspace_many(zfs_cmd_t
*zc
)
4128 int bufsize
= zc
->zc_nvlist_dst_size
;
4135 error
= zfs_sb_hold(zc
->zc_name
, FTAG
, &zsb
, B_FALSE
);
4139 buf
= vmem_alloc(bufsize
, KM_SLEEP
);
4141 error
= zfs_userspace_many(zsb
, zc
->zc_objset_type
, &zc
->zc_cookie
,
4142 buf
, &zc
->zc_nvlist_dst_size
);
4145 error
= xcopyout(buf
,
4146 (void *)(uintptr_t)zc
->zc_nvlist_dst
,
4147 zc
->zc_nvlist_dst_size
);
4149 vmem_free(buf
, bufsize
);
4150 zfs_sb_rele(zsb
, FTAG
);
4157 * zc_name name of filesystem
4163 zfs_ioc_userspace_upgrade(zfs_cmd_t
*zc
)
4169 if (get_zfs_sb(zc
->zc_name
, &zsb
) == 0) {
4170 if (!dmu_objset_userused_enabled(zsb
->z_os
)) {
4172 * If userused is not enabled, it may be because the
4173 * objset needs to be closed & reopened (to grow the
4174 * objset_phys_t). Suspend/resume the fs will do that.
4176 error
= zfs_suspend_fs(zsb
);
4178 error
= zfs_resume_fs(zsb
, zc
->zc_name
);
4181 error
= dmu_objset_userspace_upgrade(zsb
->z_os
);
4182 deactivate_super(zsb
->z_sb
);
4184 /* XXX kind of reading contents without owning */
4185 error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
);
4189 error
= dmu_objset_userspace_upgrade(os
);
4190 dmu_objset_rele(os
, FTAG
);
4197 zfs_ioc_share(zfs_cmd_t
*zc
)
4202 ace_t full_access
[] = {
4203 {(uid_t
)-1, ACE_ALL_PERMS
, ACE_EVERYONE
, 0}
4208 * zc_name name of containing filesystem
4209 * zc_obj object # beyond which we want next in-use object #
4212 * zc_obj next in-use object #
4215 zfs_ioc_next_obj(zfs_cmd_t
*zc
)
4217 objset_t
*os
= NULL
;
4220 error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
);
4224 error
= dmu_object_next(os
, &zc
->zc_obj
, B_FALSE
,
4225 os
->os_dsl_dataset
->ds_phys
->ds_prev_snap_txg
);
4227 dmu_objset_rele(os
, FTAG
);
4233 * zc_name name of filesystem
4234 * zc_value prefix name for snapshot
4235 * zc_cleanup_fd cleanup-on-exit file descriptor for calling process
4240 zfs_ioc_tmp_snapshot(zfs_cmd_t
*zc
)
4245 snap_name
= kmem_asprintf("%s-%016llx", zc
->zc_value
,
4246 (u_longlong_t
)ddi_get_lbolt64());
4248 if (strlen(snap_name
) >= MAXNAMELEN
) {
4253 error
= dmu_objset_snapshot(zc
->zc_name
, snap_name
, snap_name
,
4254 NULL
, B_FALSE
, B_TRUE
, zc
->zc_cleanup_fd
);
4260 (void) strcpy(zc
->zc_value
, snap_name
);
4267 * zc_name name of "to" snapshot
4268 * zc_value name of "from" snapshot
4269 * zc_cookie file descriptor to write diff data on
4272 * dmu_diff_record_t's to the file descriptor
4275 zfs_ioc_diff(zfs_cmd_t
*zc
)
4283 error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &tosnap
);
4287 error
= dmu_objset_hold(zc
->zc_value
, FTAG
, &fromsnap
);
4289 dmu_objset_rele(tosnap
, FTAG
);
4293 fp
= getf(zc
->zc_cookie
);
4295 dmu_objset_rele(fromsnap
, FTAG
);
4296 dmu_objset_rele(tosnap
, FTAG
);
4302 error
= dmu_diff(tosnap
, fromsnap
, fp
->f_vnode
, &off
);
4304 if (VOP_SEEK(fp
->f_vnode
, fp
->f_offset
, &off
, NULL
) == 0)
4306 releasef(zc
->zc_cookie
);
4308 dmu_objset_rele(fromsnap
, FTAG
);
4309 dmu_objset_rele(tosnap
, FTAG
);
4314 * Remove all ACL files in shares dir
4316 #ifdef HAVE_SMB_SHARE
4318 zfs_smb_acl_purge(znode_t
*dzp
)
4321 zap_attribute_t zap
;
4322 zfs_sb_t
*zsb
= ZTOZSB(dzp
);
4325 for (zap_cursor_init(&zc
, zsb
->z_os
, dzp
->z_id
);
4326 (error
= zap_cursor_retrieve(&zc
, &zap
)) == 0;
4327 zap_cursor_advance(&zc
)) {
4328 if ((error
= VOP_REMOVE(ZTOV(dzp
), zap
.za_name
, kcred
,
4332 zap_cursor_fini(&zc
);
4335 #endif /* HAVE_SMB_SHARE */
4338 zfs_ioc_smb_acl(zfs_cmd_t
*zc
)
4340 #ifdef HAVE_SMB_SHARE
4343 vnode_t
*resourcevp
= NULL
;
4352 if ((error
= lookupname(zc
->zc_value
, UIO_SYSSPACE
,
4353 NO_FOLLOW
, NULL
, &vp
)) != 0)
4356 /* Now make sure mntpnt and dataset are ZFS */
4358 if (vp
->v_vfsp
->vfs_fstype
!= zfsfstype
||
4359 (strcmp((char *)refstr_value(vp
->v_vfsp
->vfs_resource
),
4360 zc
->zc_name
) != 0)) {
4370 * Create share dir if its missing.
4372 mutex_enter(&zsb
->z_lock
);
4373 if (zsb
->z_shares_dir
== 0) {
4376 tx
= dmu_tx_create(zsb
->z_os
);
4377 dmu_tx_hold_zap(tx
, MASTER_NODE_OBJ
, TRUE
,
4379 dmu_tx_hold_zap(tx
, DMU_NEW_OBJECT
, FALSE
, NULL
);
4380 error
= dmu_tx_assign(tx
, TXG_WAIT
);
4384 error
= zfs_create_share_dir(zsb
, tx
);
4388 mutex_exit(&zsb
->z_lock
);
4394 mutex_exit(&zsb
->z_lock
);
4396 ASSERT(zsb
->z_shares_dir
);
4397 if ((error
= zfs_zget(zsb
, zsb
->z_shares_dir
, &sharedir
)) != 0) {
4403 switch (zc
->zc_cookie
) {
4404 case ZFS_SMB_ACL_ADD
:
4405 vattr
.va_mask
= AT_MODE
|AT_UID
|AT_GID
|AT_TYPE
;
4406 vattr
.va_mode
= S_IFREG
|0777;
4410 vsec
.vsa_mask
= VSA_ACE
;
4411 vsec
.vsa_aclentp
= &full_access
;
4412 vsec
.vsa_aclentsz
= sizeof (full_access
);
4413 vsec
.vsa_aclcnt
= 1;
4415 error
= VOP_CREATE(ZTOV(sharedir
), zc
->zc_string
,
4416 &vattr
, EXCL
, 0, &resourcevp
, kcred
, 0, NULL
, &vsec
);
4418 VN_RELE(resourcevp
);
4421 case ZFS_SMB_ACL_REMOVE
:
4422 error
= VOP_REMOVE(ZTOV(sharedir
), zc
->zc_string
, kcred
,
4426 case ZFS_SMB_ACL_RENAME
:
4427 if ((error
= get_nvlist(zc
->zc_nvlist_src
,
4428 zc
->zc_nvlist_src_size
, zc
->zc_iflags
, &nvlist
)) != 0) {
4433 if (nvlist_lookup_string(nvlist
, ZFS_SMB_ACL_SRC
, &src
) ||
4434 nvlist_lookup_string(nvlist
, ZFS_SMB_ACL_TARGET
,
4437 VN_RELE(ZTOV(sharedir
));
4439 nvlist_free(nvlist
);
4442 error
= VOP_RENAME(ZTOV(sharedir
), src
, ZTOV(sharedir
), target
,
4444 nvlist_free(nvlist
);
4447 case ZFS_SMB_ACL_PURGE
:
4448 error
= zfs_smb_acl_purge(sharedir
);
4457 VN_RELE(ZTOV(sharedir
));
4464 #endif /* HAVE_SMB_SHARE */
4469 * zc_name name of filesystem
4470 * zc_value short name of snap
4471 * zc_string user-supplied tag for this hold
4472 * zc_cookie recursive flag
4473 * zc_temphold set if hold is temporary
4474 * zc_cleanup_fd cleanup-on-exit file descriptor for calling process
4475 * zc_sendobj if non-zero, the objid for zc_name@zc_value
4476 * zc_createtxg if zc_sendobj is non-zero, snap must have zc_createtxg
4481 zfs_ioc_hold(zfs_cmd_t
*zc
)
4483 boolean_t recursive
= zc
->zc_cookie
;
4490 if (snapshot_namecheck(zc
->zc_value
, NULL
, NULL
) != 0)
4493 if (zc
->zc_sendobj
== 0) {
4494 return (dsl_dataset_user_hold(zc
->zc_name
, zc
->zc_value
,
4495 zc
->zc_string
, recursive
, zc
->zc_temphold
,
4496 zc
->zc_cleanup_fd
));
4502 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
4506 dp
= spa_get_dsl(spa
);
4507 rw_enter(&dp
->dp_config_rwlock
, RW_READER
);
4508 error
= dsl_dataset_hold_obj(dp
, zc
->zc_sendobj
, FTAG
, &ds
);
4509 rw_exit(&dp
->dp_config_rwlock
);
4510 spa_close(spa
, FTAG
);
4515 * Until we have a hold on this snapshot, it's possible that
4516 * zc_sendobj could've been destroyed and reused as part
4517 * of a later txg. Make sure we're looking at the right object.
4519 if (zc
->zc_createtxg
!= ds
->ds_phys
->ds_creation_txg
) {
4520 dsl_dataset_rele(ds
, FTAG
);
4524 if (zc
->zc_cleanup_fd
!= -1 && zc
->zc_temphold
) {
4525 error
= zfs_onexit_fd_hold(zc
->zc_cleanup_fd
, &minor
);
4527 dsl_dataset_rele(ds
, FTAG
);
4532 error
= dsl_dataset_user_hold_for_send(ds
, zc
->zc_string
,
4536 dsl_register_onexit_hold_cleanup(ds
, zc
->zc_string
,
4539 zfs_onexit_fd_rele(zc
->zc_cleanup_fd
);
4541 dsl_dataset_rele(ds
, FTAG
);
4548 * zc_name name of dataset from which we're releasing a user hold
4549 * zc_value short name of snap
4550 * zc_string user-supplied tag for this hold
4551 * zc_cookie recursive flag
4556 zfs_ioc_release(zfs_cmd_t
*zc
)
4558 boolean_t recursive
= zc
->zc_cookie
;
4560 if (snapshot_namecheck(zc
->zc_value
, NULL
, NULL
) != 0)
4563 return (dsl_dataset_user_release(zc
->zc_name
, zc
->zc_value
,
4564 zc
->zc_string
, recursive
));
4569 * zc_name name of filesystem
4572 * zc_nvlist_src{_size} nvlist of snapshot holds
4575 zfs_ioc_get_holds(zfs_cmd_t
*zc
)
4580 if ((error
= dsl_dataset_get_holds(zc
->zc_name
, &nvp
)) == 0) {
4581 error
= put_nvlist(zc
, nvp
);
4590 * zc_guid flags (ZEVENT_NONBLOCK)
4593 * zc_nvlist_dst next nvlist event
4594 * zc_cookie dropped events since last get
4595 * zc_cleanup_fd cleanup-on-exit file descriptor
4598 zfs_ioc_events_next(zfs_cmd_t
*zc
)
4601 nvlist_t
*event
= NULL
;
4603 uint64_t dropped
= 0;
4606 error
= zfs_zevent_fd_hold(zc
->zc_cleanup_fd
, &minor
, &ze
);
4611 error
= zfs_zevent_next(ze
, &event
,
4612 &zc
->zc_nvlist_dst_size
, &dropped
);
4613 if (event
!= NULL
) {
4614 zc
->zc_cookie
= dropped
;
4615 error
= put_nvlist(zc
, event
);
4619 if (zc
->zc_guid
& ZEVENT_NONBLOCK
)
4622 if ((error
== 0) || (error
!= ENOENT
))
4625 error
= zfs_zevent_wait(ze
);
4630 zfs_zevent_fd_rele(zc
->zc_cleanup_fd
);
4637 * zc_cookie cleared events count
4640 zfs_ioc_events_clear(zfs_cmd_t
*zc
)
4644 zfs_zevent_drain_all(&count
);
4645 zc
->zc_cookie
= count
;
4652 * zc_name name of new filesystem or snapshot
4653 * zc_value full name of old snapshot
4656 * zc_cookie space in bytes
4657 * zc_objset_type compressed space in bytes
4658 * zc_perm_action uncompressed space in bytes
4661 zfs_ioc_space_written(zfs_cmd_t
*zc
)
4664 dsl_dataset_t
*new, *old
;
4666 error
= dsl_dataset_hold(zc
->zc_name
, FTAG
, &new);
4669 error
= dsl_dataset_hold(zc
->zc_value
, FTAG
, &old
);
4671 dsl_dataset_rele(new, FTAG
);
4675 error
= dsl_dataset_space_written(old
, new, &zc
->zc_cookie
,
4676 &zc
->zc_objset_type
, &zc
->zc_perm_action
);
4677 dsl_dataset_rele(old
, FTAG
);
4678 dsl_dataset_rele(new, FTAG
);
4684 * zc_name full name of last snapshot
4685 * zc_value full name of first snapshot
4688 * zc_cookie space in bytes
4689 * zc_objset_type compressed space in bytes
4690 * zc_perm_action uncompressed space in bytes
4693 zfs_ioc_space_snaps(zfs_cmd_t
*zc
)
4696 dsl_dataset_t
*new, *old
;
4698 error
= dsl_dataset_hold(zc
->zc_name
, FTAG
, &new);
4701 error
= dsl_dataset_hold(zc
->zc_value
, FTAG
, &old
);
4703 dsl_dataset_rele(new, FTAG
);
4707 error
= dsl_dataset_space_wouldfree(old
, new, &zc
->zc_cookie
,
4708 &zc
->zc_objset_type
, &zc
->zc_perm_action
);
4709 dsl_dataset_rele(old
, FTAG
);
4710 dsl_dataset_rele(new, FTAG
);
4715 * pool create, destroy, and export don't log the history as part of
4716 * zfsdev_ioctl, but rather zfs_ioc_pool_create, and zfs_ioc_pool_export
4717 * do the logging of those commands.
4719 static zfs_ioc_vec_t zfs_ioc_vec
[] = {
4720 { zfs_ioc_pool_create
, zfs_secpolicy_config
, POOL_NAME
, B_FALSE
,
4722 { zfs_ioc_pool_destroy
, zfs_secpolicy_config
, POOL_NAME
, B_FALSE
,
4724 { zfs_ioc_pool_import
, zfs_secpolicy_config
, POOL_NAME
, B_TRUE
,
4726 { zfs_ioc_pool_export
, zfs_secpolicy_config
, POOL_NAME
, B_FALSE
,
4728 { zfs_ioc_pool_configs
, zfs_secpolicy_none
, NO_NAME
, B_FALSE
,
4730 { zfs_ioc_pool_stats
, zfs_secpolicy_read
, POOL_NAME
, B_FALSE
,
4732 { zfs_ioc_pool_tryimport
, zfs_secpolicy_config
, NO_NAME
, B_FALSE
,
4734 { zfs_ioc_pool_scan
, zfs_secpolicy_config
, POOL_NAME
, B_TRUE
,
4735 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4736 { zfs_ioc_pool_freeze
, zfs_secpolicy_config
, NO_NAME
, B_FALSE
,
4737 POOL_CHECK_READONLY
},
4738 { zfs_ioc_pool_upgrade
, zfs_secpolicy_config
, POOL_NAME
, B_TRUE
,
4739 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4740 { zfs_ioc_pool_get_history
, zfs_secpolicy_config
, POOL_NAME
, B_FALSE
,
4742 { zfs_ioc_vdev_add
, zfs_secpolicy_config
, POOL_NAME
, B_TRUE
,
4743 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4744 { zfs_ioc_vdev_remove
, zfs_secpolicy_config
, POOL_NAME
, B_TRUE
,
4745 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4746 { zfs_ioc_vdev_set_state
, zfs_secpolicy_config
, POOL_NAME
, B_TRUE
,
4747 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4748 { zfs_ioc_vdev_attach
, zfs_secpolicy_config
, POOL_NAME
, B_TRUE
,
4749 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4750 { zfs_ioc_vdev_detach
, zfs_secpolicy_config
, POOL_NAME
, B_TRUE
,
4751 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4752 { zfs_ioc_vdev_setpath
, zfs_secpolicy_config
, POOL_NAME
, B_FALSE
,
4753 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4754 { zfs_ioc_vdev_setfru
, zfs_secpolicy_config
, POOL_NAME
, B_FALSE
,
4755 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4756 { zfs_ioc_objset_stats
, zfs_secpolicy_read
, DATASET_NAME
, B_FALSE
,
4757 POOL_CHECK_SUSPENDED
},
4758 { zfs_ioc_objset_zplprops
, zfs_secpolicy_read
, DATASET_NAME
, B_FALSE
,
4760 { zfs_ioc_dataset_list_next
, zfs_secpolicy_read
, DATASET_NAME
, B_FALSE
,
4761 POOL_CHECK_SUSPENDED
},
4762 { zfs_ioc_snapshot_list_next
, zfs_secpolicy_read
, DATASET_NAME
, B_FALSE
,
4763 POOL_CHECK_SUSPENDED
},
4764 { zfs_ioc_set_prop
, zfs_secpolicy_none
, DATASET_NAME
, B_TRUE
,
4765 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4766 { zfs_ioc_create_minor
, zfs_secpolicy_config
, DATASET_NAME
, B_FALSE
,
4768 { zfs_ioc_remove_minor
, zfs_secpolicy_config
, DATASET_NAME
, B_FALSE
,
4770 { zfs_ioc_create
, zfs_secpolicy_create
, DATASET_NAME
, B_TRUE
,
4771 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4772 { zfs_ioc_destroy
, zfs_secpolicy_destroy
, DATASET_NAME
, B_TRUE
,
4773 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4774 { zfs_ioc_rollback
, zfs_secpolicy_rollback
, DATASET_NAME
, B_TRUE
,
4775 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4776 { zfs_ioc_rename
, zfs_secpolicy_rename
, DATASET_NAME
, B_TRUE
,
4777 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4778 { zfs_ioc_recv
, zfs_secpolicy_receive
, DATASET_NAME
, B_TRUE
,
4779 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4780 { zfs_ioc_send
, zfs_secpolicy_send
, DATASET_NAME
, B_FALSE
,
4782 { zfs_ioc_inject_fault
, zfs_secpolicy_inject
, NO_NAME
, B_FALSE
,
4784 { zfs_ioc_clear_fault
, zfs_secpolicy_inject
, NO_NAME
, B_FALSE
,
4786 { zfs_ioc_inject_list_next
, zfs_secpolicy_inject
, NO_NAME
, B_FALSE
,
4788 { zfs_ioc_error_log
, zfs_secpolicy_inject
, POOL_NAME
, B_FALSE
,
4790 { zfs_ioc_clear
, zfs_secpolicy_config
, POOL_NAME
, B_TRUE
,
4792 { zfs_ioc_promote
, zfs_secpolicy_promote
, DATASET_NAME
, B_TRUE
,
4793 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4794 { zfs_ioc_destroy_snaps_nvl
, zfs_secpolicy_destroy_recursive
,
4795 DATASET_NAME
, B_TRUE
, POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4796 { zfs_ioc_snapshot
, zfs_secpolicy_snapshot
, DATASET_NAME
, B_TRUE
,
4797 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4798 { zfs_ioc_dsobj_to_dsname
, zfs_secpolicy_diff
, POOL_NAME
, B_FALSE
,
4800 { zfs_ioc_obj_to_path
, zfs_secpolicy_diff
, DATASET_NAME
, B_FALSE
,
4801 POOL_CHECK_SUSPENDED
},
4802 { zfs_ioc_pool_set_props
, zfs_secpolicy_config
, POOL_NAME
, B_TRUE
,
4803 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4804 { zfs_ioc_pool_get_props
, zfs_secpolicy_read
, POOL_NAME
, B_FALSE
,
4806 { zfs_ioc_set_fsacl
, zfs_secpolicy_fsacl
, DATASET_NAME
, B_TRUE
,
4807 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4808 { zfs_ioc_get_fsacl
, zfs_secpolicy_read
, DATASET_NAME
, B_FALSE
,
4810 { zfs_ioc_share
, zfs_secpolicy_share
, DATASET_NAME
, B_FALSE
,
4812 { zfs_ioc_inherit_prop
, zfs_secpolicy_inherit
, DATASET_NAME
, B_TRUE
,
4813 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4814 { zfs_ioc_smb_acl
, zfs_secpolicy_smb_acl
, DATASET_NAME
, B_FALSE
,
4816 { zfs_ioc_userspace_one
, zfs_secpolicy_userspace_one
, DATASET_NAME
,
4817 B_FALSE
, POOL_CHECK_NONE
},
4818 { zfs_ioc_userspace_many
, zfs_secpolicy_userspace_many
, DATASET_NAME
,
4819 B_FALSE
, POOL_CHECK_NONE
},
4820 { zfs_ioc_userspace_upgrade
, zfs_secpolicy_userspace_upgrade
,
4821 DATASET_NAME
, B_FALSE
, POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4822 { zfs_ioc_hold
, zfs_secpolicy_hold
, DATASET_NAME
, B_TRUE
,
4823 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4824 { zfs_ioc_release
, zfs_secpolicy_release
, DATASET_NAME
, B_TRUE
,
4825 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4826 { zfs_ioc_get_holds
, zfs_secpolicy_read
, DATASET_NAME
, B_FALSE
,
4827 POOL_CHECK_SUSPENDED
},
4828 { zfs_ioc_objset_recvd_props
, zfs_secpolicy_read
, DATASET_NAME
, B_FALSE
,
4830 { zfs_ioc_vdev_split
, zfs_secpolicy_config
, POOL_NAME
, B_TRUE
,
4831 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4832 { zfs_ioc_next_obj
, zfs_secpolicy_read
, DATASET_NAME
, B_FALSE
,
4834 { zfs_ioc_diff
, zfs_secpolicy_diff
, DATASET_NAME
, B_FALSE
,
4836 { zfs_ioc_tmp_snapshot
, zfs_secpolicy_tmp_snapshot
, DATASET_NAME
,
4837 B_FALSE
, POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4838 { zfs_ioc_obj_to_stats
, zfs_secpolicy_diff
, DATASET_NAME
, B_FALSE
,
4839 POOL_CHECK_SUSPENDED
},
4840 { zfs_ioc_events_next
, zfs_secpolicy_config
, NO_NAME
, B_FALSE
,
4842 { zfs_ioc_events_clear
, zfs_secpolicy_config
, NO_NAME
, B_FALSE
,
4844 { zfs_ioc_pool_reguid
, zfs_secpolicy_config
, POOL_NAME
, B_TRUE
,
4845 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4846 { zfs_ioc_space_written
, zfs_secpolicy_read
, DATASET_NAME
, B_FALSE
,
4847 POOL_CHECK_SUSPENDED
},
4848 { zfs_ioc_space_snaps
, zfs_secpolicy_read
, DATASET_NAME
, B_FALSE
,
4849 POOL_CHECK_SUSPENDED
},
4850 { zfs_ioc_pool_reopen
, zfs_secpolicy_config
, POOL_NAME
, B_TRUE
,
4851 POOL_CHECK_SUSPENDED
},
4855 pool_status_check(const char *name
, zfs_ioc_namecheck_t type
,
4856 zfs_ioc_poolcheck_t check
)
4861 ASSERT(type
== POOL_NAME
|| type
== DATASET_NAME
);
4863 if (check
& POOL_CHECK_NONE
)
4866 error
= spa_open(name
, &spa
, FTAG
);
4868 if ((check
& POOL_CHECK_SUSPENDED
) && spa_suspended(spa
))
4870 else if ((check
& POOL_CHECK_READONLY
) && !spa_writeable(spa
))
4872 spa_close(spa
, FTAG
);
4878 zfsdev_get_state_impl(minor_t minor
, enum zfsdev_state_type which
)
4882 ASSERT(MUTEX_HELD(&zfsdev_state_lock
));
4884 for (zs
= list_head(&zfsdev_state_list
); zs
!= NULL
;
4885 zs
= list_next(&zfsdev_state_list
, zs
)) {
4886 if (zs
->zs_minor
== minor
) {
4888 case ZST_ONEXIT
: return (zs
->zs_onexit
);
4889 case ZST_ZEVENT
: return (zs
->zs_zevent
);
4890 case ZST_ALL
: return (zs
);
4899 zfsdev_get_state(minor_t minor
, enum zfsdev_state_type which
)
4903 mutex_enter(&zfsdev_state_lock
);
4904 ptr
= zfsdev_get_state_impl(minor
, which
);
4905 mutex_exit(&zfsdev_state_lock
);
4911 zfsdev_getminor(struct file
*filp
)
4913 ASSERT(filp
!= NULL
);
4914 ASSERT(filp
->private_data
!= NULL
);
4916 return (((zfsdev_state_t
*)filp
->private_data
)->zs_minor
);
4920 * Find a free minor number. The zfsdev_state_list is expected to
4921 * be short since it is only a list of currently open file handles.
4924 zfsdev_minor_alloc(void)
4926 static minor_t last_minor
= 0;
4929 ASSERT(MUTEX_HELD(&zfsdev_state_lock
));
4931 for (m
= last_minor
+ 1; m
!= last_minor
; m
++) {
4932 if (m
> ZFSDEV_MAX_MINOR
)
4934 if (zfsdev_get_state_impl(m
, ZST_ALL
) == NULL
) {
4944 zfsdev_state_init(struct file
*filp
)
4949 ASSERT(MUTEX_HELD(&zfsdev_state_lock
));
4951 minor
= zfsdev_minor_alloc();
4955 zs
= kmem_zalloc( sizeof(zfsdev_state_t
), KM_SLEEP
);
4960 zs
->zs_minor
= minor
;
4961 filp
->private_data
= zs
;
4963 zfs_onexit_init((zfs_onexit_t
**)&zs
->zs_onexit
);
4964 zfs_zevent_init((zfs_zevent_t
**)&zs
->zs_zevent
);
4966 list_insert_tail(&zfsdev_state_list
, zs
);
4972 zfsdev_state_destroy(struct file
*filp
)
4976 ASSERT(MUTEX_HELD(&zfsdev_state_lock
));
4977 ASSERT(filp
->private_data
!= NULL
);
4979 zs
= filp
->private_data
;
4980 zfs_onexit_destroy(zs
->zs_onexit
);
4981 zfs_zevent_destroy(zs
->zs_zevent
);
4983 list_remove(&zfsdev_state_list
, zs
);
4984 kmem_free(zs
, sizeof(zfsdev_state_t
));
4990 zfsdev_open(struct inode
*ino
, struct file
*filp
)
4994 mutex_enter(&zfsdev_state_lock
);
4995 error
= zfsdev_state_init(filp
);
4996 mutex_exit(&zfsdev_state_lock
);
5002 zfsdev_release(struct inode
*ino
, struct file
*filp
)
5006 mutex_enter(&zfsdev_state_lock
);
5007 error
= zfsdev_state_destroy(filp
);
5008 mutex_exit(&zfsdev_state_lock
);
5014 zfsdev_ioctl(struct file
*filp
, unsigned cmd
, unsigned long arg
)
5018 int error
, rc
, flag
= 0;
5020 vec
= cmd
- ZFS_IOC
;
5021 if (vec
>= sizeof (zfs_ioc_vec
) / sizeof (zfs_ioc_vec
[0]))
5024 zc
= kmem_zalloc(sizeof (zfs_cmd_t
), KM_SLEEP
| KM_NODEBUG
);
5026 error
= ddi_copyin((void *)arg
, zc
, sizeof (zfs_cmd_t
), flag
);
5030 if ((error
== 0) && !(flag
& FKIOCTL
))
5031 error
= zfs_ioc_vec
[vec
].zvec_secpolicy(zc
, CRED());
5034 * Ensure that all pool/dataset names are valid before we pass down to
5038 zc
->zc_name
[sizeof (zc
->zc_name
) - 1] = '\0';
5039 zc
->zc_iflags
= flag
& FKIOCTL
;
5040 switch (zfs_ioc_vec
[vec
].zvec_namecheck
) {
5042 if (pool_namecheck(zc
->zc_name
, NULL
, NULL
) != 0)
5044 error
= pool_status_check(zc
->zc_name
,
5045 zfs_ioc_vec
[vec
].zvec_namecheck
,
5046 zfs_ioc_vec
[vec
].zvec_pool_check
);
5050 if (dataset_namecheck(zc
->zc_name
, NULL
, NULL
) != 0)
5052 error
= pool_status_check(zc
->zc_name
,
5053 zfs_ioc_vec
[vec
].zvec_namecheck
,
5054 zfs_ioc_vec
[vec
].zvec_pool_check
);
5063 error
= zfs_ioc_vec
[vec
].zvec_func(zc
);
5065 rc
= ddi_copyout(zc
, (void *)arg
, sizeof (zfs_cmd_t
), flag
);
5069 if (zfs_ioc_vec
[vec
].zvec_his_log
)
5070 zfs_log_history(zc
);
5073 kmem_free(zc
, sizeof (zfs_cmd_t
));
5077 #ifdef CONFIG_COMPAT
5079 zfsdev_compat_ioctl(struct file
*filp
, unsigned cmd
, unsigned long arg
)
5081 return zfsdev_ioctl(filp
, cmd
, arg
);
5084 #define zfsdev_compat_ioctl NULL
5087 static const struct file_operations zfsdev_fops
= {
5088 .open
= zfsdev_open
,
5089 .release
= zfsdev_release
,
5090 .unlocked_ioctl
= zfsdev_ioctl
,
5091 .compat_ioctl
= zfsdev_compat_ioctl
,
5092 .owner
= THIS_MODULE
,
5095 static struct miscdevice zfs_misc
= {
5096 .minor
= MISC_DYNAMIC_MINOR
,
5098 .fops
= &zfsdev_fops
,
5106 mutex_init(&zfsdev_state_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
5107 list_create(&zfsdev_state_list
, sizeof (zfsdev_state_t
),
5108 offsetof(zfsdev_state_t
, zs_next
));
5110 error
= misc_register(&zfs_misc
);
5112 printk(KERN_INFO
"ZFS: misc_register() failed %d\n", error
);
5124 error
= misc_deregister(&zfs_misc
);
5126 printk(KERN_INFO
"ZFS: misc_deregister() failed %d\n", error
);
5128 mutex_destroy(&zfsdev_state_lock
);
5129 list_destroy(&zfsdev_state_list
);
5132 uint_t zfs_fsyncer_key
;
5133 extern uint_t rrw_tsd_key
;
5136 #define ZFS_DEBUG_STR " (DEBUG mode)"
5138 #define ZFS_DEBUG_STR ""
5146 spa_init(FREAD
| FWRITE
);
5149 if ((error
= zvol_init()) != 0)
5152 if ((error
= zfs_attach()) != 0)
5155 tsd_create(&zfs_fsyncer_key
, NULL
);
5156 tsd_create(&rrw_tsd_key
, NULL
);
5158 printk(KERN_NOTICE
"ZFS: Loaded module v%s-%s%s, "
5159 "ZFS pool version %s, ZFS filesystem version %s\n",
5160 ZFS_META_VERSION
, ZFS_META_RELEASE
, ZFS_DEBUG_STR
,
5161 SPA_VERSION_STRING
, ZPL_VERSION_STRING
);
5170 printk(KERN_NOTICE
"ZFS: Failed to Load ZFS Filesystem v%s-%s%s"
5171 ", rc = %d\n", ZFS_META_VERSION
, ZFS_META_RELEASE
,
5172 ZFS_DEBUG_STR
, error
);
5185 tsd_destroy(&zfs_fsyncer_key
);
5186 tsd_destroy(&rrw_tsd_key
);
5188 printk(KERN_NOTICE
"ZFS: Unloaded module v%s-%s%s\n",
5189 ZFS_META_VERSION
, ZFS_META_RELEASE
, ZFS_DEBUG_STR
);
5195 spl_module_init(_init
);
5196 spl_module_exit(_fini
);
5198 MODULE_DESCRIPTION("ZFS");
5199 MODULE_AUTHOR(ZFS_META_AUTHOR
);
5200 MODULE_LICENSE(ZFS_META_LICENSE
);
5201 #endif /* HAVE_SPL */