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.
25 #include <sys/types.h>
26 #include <sys/param.h>
27 #include <sys/errno.h>
30 #include <sys/modctl.h>
35 #include <sys/cmn_err.h>
37 #include <sys/zfs_ioctl.h>
38 #include <sys/zfs_vfsops.h>
39 #include <sys/zfs_znode.h>
42 #include <sys/spa_impl.h>
44 #include <sys/priv_impl.h>
46 #include <sys/dsl_dir.h>
47 #include <sys/dsl_dataset.h>
48 #include <sys/dsl_prop.h>
49 #include <sys/dsl_deleg.h>
50 #include <sys/dmu_objset.h>
52 #include <sys/sunddi.h>
53 #include <sys/sunldi.h>
54 #include <sys/policy.h>
56 #include <sys/nvpair.h>
57 #include <sys/pathname.h>
58 #include <sys/mount.h>
60 #include <sys/fs/zfs.h>
61 #include <sys/zfs_ctldir.h>
62 #include <sys/zfs_dir.h>
63 #include <sys/zfs_onexit.h>
65 #include <sys/dsl_scan.h>
66 #include <sharefs/share.h>
67 #include <sys/dmu_objset.h>
68 #include <sys/fm/util.h>
70 #include <linux/miscdevice.h>
72 #include "zfs_namecheck.h"
74 #include "zfs_deleg.h"
75 #include "zfs_comutil.h"
77 kmutex_t zfsdev_state_lock
;
78 list_t zfsdev_state_list
;
80 extern void zfs_init(void);
81 extern void zfs_fini(void);
83 typedef int zfs_ioc_func_t(zfs_cmd_t
*);
84 typedef int zfs_secpolicy_func_t(zfs_cmd_t
*, cred_t
*);
90 } zfs_ioc_namecheck_t
;
93 POOL_CHECK_NONE
= 1 << 0,
94 POOL_CHECK_SUSPENDED
= 1 << 1,
95 POOL_CHECK_READONLY
= 1 << 2
96 } zfs_ioc_poolcheck_t
;
98 typedef struct zfs_ioc_vec
{
99 zfs_ioc_func_t
*zvec_func
;
100 zfs_secpolicy_func_t
*zvec_secpolicy
;
101 zfs_ioc_namecheck_t zvec_namecheck
;
102 boolean_t zvec_his_log
;
103 zfs_ioc_poolcheck_t zvec_pool_check
;
106 /* This array is indexed by zfs_userquota_prop_t */
107 static const char *userquota_perms
[] = {
108 ZFS_DELEG_PERM_USERUSED
,
109 ZFS_DELEG_PERM_USERQUOTA
,
110 ZFS_DELEG_PERM_GROUPUSED
,
111 ZFS_DELEG_PERM_GROUPQUOTA
,
114 static int zfs_ioc_userspace_upgrade(zfs_cmd_t
*zc
);
115 static int zfs_check_settable(const char *name
, nvpair_t
*property
,
117 static int zfs_check_clearable(char *dataset
, nvlist_t
*props
,
119 static int zfs_fill_zplprops_root(uint64_t, nvlist_t
*, nvlist_t
*,
121 int zfs_set_prop_nvlist(const char *, zprop_source_t
, nvlist_t
*, nvlist_t
**);
123 /* _NOTE(PRINTFLIKE(4)) - this is printf-like, but lint is too whiney */
125 __dprintf(const char *file
, const char *func
, int line
, const char *fmt
, ...)
132 * Get rid of annoying "../common/" prefix to filename.
134 newfile
= strrchr(file
, '/');
135 if (newfile
!= NULL
) {
136 newfile
= newfile
+ 1; /* Get rid of leading / */
142 (void) vsnprintf(buf
, sizeof (buf
), fmt
, adx
);
146 * To get this data, use the zfs-dprintf probe as so:
147 * dtrace -q -n 'zfs-dprintf \
148 * /stringof(arg0) == "dbuf.c"/ \
149 * {printf("%s: %s", stringof(arg1), stringof(arg3))}'
151 * arg1 = function name
155 DTRACE_PROBE4(zfs__dprintf
,
156 char *, newfile
, char *, func
, int, line
, char *, buf
);
160 history_str_free(char *buf
)
162 kmem_free(buf
, HIS_MAX_RECORD_LEN
);
166 history_str_get(zfs_cmd_t
*zc
)
170 if (zc
->zc_history
== 0)
173 buf
= kmem_alloc(HIS_MAX_RECORD_LEN
, KM_SLEEP
| KM_NODEBUG
);
174 if (copyinstr((void *)(uintptr_t)zc
->zc_history
,
175 buf
, HIS_MAX_RECORD_LEN
, NULL
) != 0) {
176 history_str_free(buf
);
180 buf
[HIS_MAX_RECORD_LEN
-1] = '\0';
186 * Check to see if the named dataset is currently defined as bootable
189 zfs_is_bootfs(const char *name
)
193 if (dmu_objset_hold(name
, FTAG
, &os
) == 0) {
195 ret
= (dmu_objset_id(os
) == spa_bootfs(dmu_objset_spa(os
)));
196 dmu_objset_rele(os
, FTAG
);
203 * zfs_earlier_version
205 * Return non-zero if the spa version is less than requested version.
208 zfs_earlier_version(const char *name
, int version
)
212 if (spa_open(name
, &spa
, FTAG
) == 0) {
213 if (spa_version(spa
) < version
) {
214 spa_close(spa
, FTAG
);
217 spa_close(spa
, FTAG
);
223 * zpl_earlier_version
225 * Return TRUE if the ZPL version is less than requested version.
228 zpl_earlier_version(const char *name
, int version
)
231 boolean_t rc
= B_TRUE
;
233 if (dmu_objset_hold(name
, FTAG
, &os
) == 0) {
236 if (dmu_objset_type(os
) != DMU_OST_ZFS
) {
237 dmu_objset_rele(os
, FTAG
);
240 /* XXX reading from non-owned objset */
241 if (zfs_get_zplprop(os
, ZFS_PROP_VERSION
, &zplversion
) == 0)
242 rc
= zplversion
< version
;
243 dmu_objset_rele(os
, FTAG
);
249 zfs_log_history(zfs_cmd_t
*zc
)
254 if ((buf
= history_str_get(zc
)) == NULL
)
257 if (spa_open(zc
->zc_name
, &spa
, FTAG
) == 0) {
258 if (spa_version(spa
) >= SPA_VERSION_ZPOOL_HISTORY
)
259 (void) spa_history_log(spa
, buf
, LOG_CMD_NORMAL
);
260 spa_close(spa
, FTAG
);
262 history_str_free(buf
);
266 * Policy for top-level read operations (list pools). Requires no privileges,
267 * and can be used in the local zone, as there is no associated dataset.
271 zfs_secpolicy_none(zfs_cmd_t
*zc
, cred_t
*cr
)
277 * Policy for dataset read operations (list children, get statistics). Requires
278 * no privileges, but must be visible in the local zone.
282 zfs_secpolicy_read(zfs_cmd_t
*zc
, cred_t
*cr
)
284 if (INGLOBALZONE(curproc
) ||
285 zone_dataset_visible(zc
->zc_name
, NULL
))
292 zfs_dozonecheck_impl(const char *dataset
, uint64_t zoned
, cred_t
*cr
)
297 * The dataset must be visible by this zone -- check this first
298 * so they don't see EPERM on something they shouldn't know about.
300 if (!INGLOBALZONE(curproc
) &&
301 !zone_dataset_visible(dataset
, &writable
))
304 if (INGLOBALZONE(curproc
)) {
306 * If the fs is zoned, only root can access it from the
309 if (secpolicy_zfs(cr
) && zoned
)
313 * If we are in a local zone, the 'zoned' property must be set.
318 /* must be writable by this zone */
326 zfs_dozonecheck(const char *dataset
, cred_t
*cr
)
330 if (dsl_prop_get_integer(dataset
, "zoned", &zoned
, NULL
))
333 return (zfs_dozonecheck_impl(dataset
, zoned
, cr
));
337 zfs_dozonecheck_ds(const char *dataset
, dsl_dataset_t
*ds
, cred_t
*cr
)
341 rw_enter(&ds
->ds_dir
->dd_pool
->dp_config_rwlock
, RW_READER
);
342 if (dsl_prop_get_ds(ds
, "zoned", 8, 1, &zoned
, NULL
)) {
343 rw_exit(&ds
->ds_dir
->dd_pool
->dp_config_rwlock
);
346 rw_exit(&ds
->ds_dir
->dd_pool
->dp_config_rwlock
);
348 return (zfs_dozonecheck_impl(dataset
, zoned
, cr
));
352 zfs_secpolicy_write_perms(const char *name
, const char *perm
, cred_t
*cr
)
356 error
= zfs_dozonecheck(name
, cr
);
358 error
= secpolicy_zfs(cr
);
360 error
= dsl_deleg_access(name
, perm
, cr
);
366 zfs_secpolicy_write_perms_ds(const char *name
, dsl_dataset_t
*ds
,
367 const char *perm
, cred_t
*cr
)
371 error
= zfs_dozonecheck_ds(name
, ds
, cr
);
373 error
= secpolicy_zfs(cr
);
375 error
= dsl_deleg_access_impl(ds
, perm
, cr
);
381 * Policy for setting the security label property.
383 * Returns 0 for success, non-zero for access and other errors.
386 zfs_set_slabel_policy(const char *name
, char *strval
, cred_t
*cr
)
389 char ds_hexsl
[MAXNAMELEN
];
390 bslabel_t ds_sl
, new_sl
;
391 boolean_t new_default
= FALSE
;
393 int needed_priv
= -1;
396 /* First get the existing dataset label. */
397 error
= dsl_prop_get(name
, zfs_prop_to_name(ZFS_PROP_MLSLABEL
),
398 1, sizeof (ds_hexsl
), &ds_hexsl
, NULL
);
402 if (strcasecmp(strval
, ZFS_MLSLABEL_DEFAULT
) == 0)
405 /* The label must be translatable */
406 if (!new_default
&& (hexstr_to_label(strval
, &new_sl
) != 0))
410 * In a non-global zone, disallow attempts to set a label that
411 * doesn't match that of the zone; otherwise no other checks
414 if (!INGLOBALZONE(curproc
)) {
415 if (new_default
|| !blequal(&new_sl
, CR_SL(CRED())))
421 * For global-zone datasets (i.e., those whose zoned property is
422 * "off", verify that the specified new label is valid for the
425 if (dsl_prop_get_integer(name
,
426 zfs_prop_to_name(ZFS_PROP_ZONED
), &zoned
, NULL
))
429 if (zfs_check_global_label(name
, strval
) != 0)
434 * If the existing dataset label is nondefault, check if the
435 * dataset is mounted (label cannot be changed while mounted).
436 * Get the zfsvfs; if there isn't one, then the dataset isn't
437 * mounted (or isn't a dataset, doesn't exist, ...).
439 if (strcasecmp(ds_hexsl
, ZFS_MLSLABEL_DEFAULT
) != 0) {
441 static char *setsl_tag
= "setsl_tag";
444 * Try to own the dataset; abort if there is any error,
445 * (e.g., already mounted, in use, or other error).
447 error
= dmu_objset_own(name
, DMU_OST_ZFS
, B_TRUE
,
452 dmu_objset_disown(os
, setsl_tag
);
455 needed_priv
= PRIV_FILE_DOWNGRADE_SL
;
459 if (hexstr_to_label(strval
, &new_sl
) != 0)
462 if (blstrictdom(&ds_sl
, &new_sl
))
463 needed_priv
= PRIV_FILE_DOWNGRADE_SL
;
464 else if (blstrictdom(&new_sl
, &ds_sl
))
465 needed_priv
= PRIV_FILE_UPGRADE_SL
;
467 /* dataset currently has a default label */
469 needed_priv
= PRIV_FILE_UPGRADE_SL
;
473 if (needed_priv
!= -1)
474 return (PRIV_POLICY(cr
, needed_priv
, B_FALSE
, EPERM
, NULL
));
478 #endif /* HAVE_MLSLABEL */
482 zfs_secpolicy_setprop(const char *dsname
, zfs_prop_t prop
, nvpair_t
*propval
,
488 * Check permissions for special properties.
495 * Disallow setting of 'zoned' from within a local zone.
497 if (!INGLOBALZONE(curproc
))
502 if (!INGLOBALZONE(curproc
)) {
504 char setpoint
[MAXNAMELEN
];
506 * Unprivileged users are allowed to modify the
507 * quota on things *under* (ie. contained by)
508 * the thing they own.
510 if (dsl_prop_get_integer(dsname
, "zoned", &zoned
,
513 if (!zoned
|| strlen(dsname
) <= strlen(setpoint
))
518 case ZFS_PROP_MLSLABEL
:
519 if (!is_system_labeled())
522 if (nvpair_value_string(propval
, &strval
) == 0) {
525 err
= zfs_set_slabel_policy(dsname
, strval
, CRED());
532 return (zfs_secpolicy_write_perms(dsname
, zfs_prop_to_name(prop
), cr
));
536 zfs_secpolicy_fsacl(zfs_cmd_t
*zc
, cred_t
*cr
)
540 error
= zfs_dozonecheck(zc
->zc_name
, cr
);
545 * permission to set permissions will be evaluated later in
546 * dsl_deleg_can_allow()
552 zfs_secpolicy_rollback(zfs_cmd_t
*zc
, cred_t
*cr
)
554 return (zfs_secpolicy_write_perms(zc
->zc_name
,
555 ZFS_DELEG_PERM_ROLLBACK
, cr
));
559 zfs_secpolicy_send(zfs_cmd_t
*zc
, cred_t
*cr
)
568 * Generate the current snapshot name from the given objsetid, then
569 * use that name for the secpolicy/zone checks.
571 cp
= strchr(zc
->zc_name
, '@');
574 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
578 dp
= spa_get_dsl(spa
);
579 rw_enter(&dp
->dp_config_rwlock
, RW_READER
);
580 error
= dsl_dataset_hold_obj(dp
, zc
->zc_sendobj
, FTAG
, &ds
);
581 rw_exit(&dp
->dp_config_rwlock
);
582 spa_close(spa
, FTAG
);
586 dsl_dataset_name(ds
, zc
->zc_name
);
588 error
= zfs_secpolicy_write_perms_ds(zc
->zc_name
, ds
,
589 ZFS_DELEG_PERM_SEND
, cr
);
590 dsl_dataset_rele(ds
, FTAG
);
597 zfs_secpolicy_deleg_share(zfs_cmd_t
*zc
, cred_t
*cr
)
602 if ((error
= lookupname(zc
->zc_value
, UIO_SYSSPACE
,
603 NO_FOLLOW
, NULL
, &vp
)) != 0)
606 /* Now make sure mntpnt and dataset are ZFS */
608 if (vp
->v_vfsp
->vfs_fstype
!= zfsfstype
||
609 (strcmp((char *)refstr_value(vp
->v_vfsp
->vfs_resource
),
610 zc
->zc_name
) != 0)) {
616 return (dsl_deleg_access(zc
->zc_name
,
617 ZFS_DELEG_PERM_SHARE
, cr
));
619 #endif /* HAVE_ZPL */
622 zfs_secpolicy_share(zfs_cmd_t
*zc
, cred_t
*cr
)
625 if (!INGLOBALZONE(curproc
))
628 if (secpolicy_nfs(cr
) == 0) {
631 return (zfs_secpolicy_deleg_share(zc
, cr
));
635 #endif /* HAVE_ZPL */
639 zfs_secpolicy_smb_acl(zfs_cmd_t
*zc
, cred_t
*cr
)
642 if (!INGLOBALZONE(curproc
))
645 if (secpolicy_smb(cr
) == 0) {
648 return (zfs_secpolicy_deleg_share(zc
, cr
));
652 #endif /* HAVE_ZPL */
656 zfs_get_parent(const char *datasetname
, char *parent
, int parentsize
)
661 * Remove the @bla or /bla from the end of the name to get the parent.
663 (void) strncpy(parent
, datasetname
, parentsize
);
664 cp
= strrchr(parent
, '@');
668 cp
= strrchr(parent
, '/');
678 zfs_secpolicy_destroy_perms(const char *name
, cred_t
*cr
)
682 if ((error
= zfs_secpolicy_write_perms(name
,
683 ZFS_DELEG_PERM_MOUNT
, cr
)) != 0)
686 return (zfs_secpolicy_write_perms(name
, ZFS_DELEG_PERM_DESTROY
, cr
));
690 zfs_secpolicy_destroy(zfs_cmd_t
*zc
, cred_t
*cr
)
692 return (zfs_secpolicy_destroy_perms(zc
->zc_name
, cr
));
696 * Destroying snapshots with delegated permissions requires
697 * descendent mount and destroy permissions.
698 * Reassemble the full filesystem@snap name so dsl_deleg_access()
699 * can do the correct permission check.
701 * Since this routine is used when doing a recursive destroy of snapshots
702 * and destroying snapshots requires descendent permissions, a successfull
703 * check of the top level snapshot applies to snapshots of all descendent
707 zfs_secpolicy_destroy_snaps(zfs_cmd_t
*zc
, cred_t
*cr
)
712 dsname
= kmem_asprintf("%s@%s", zc
->zc_name
, zc
->zc_value
);
714 error
= zfs_secpolicy_destroy_perms(dsname
, cr
);
721 zfs_secpolicy_rename_perms(const char *from
, const char *to
, cred_t
*cr
)
723 char parentname
[MAXNAMELEN
];
726 if ((error
= zfs_secpolicy_write_perms(from
,
727 ZFS_DELEG_PERM_RENAME
, cr
)) != 0)
730 if ((error
= zfs_secpolicy_write_perms(from
,
731 ZFS_DELEG_PERM_MOUNT
, cr
)) != 0)
734 if ((error
= zfs_get_parent(to
, parentname
,
735 sizeof (parentname
))) != 0)
738 if ((error
= zfs_secpolicy_write_perms(parentname
,
739 ZFS_DELEG_PERM_CREATE
, cr
)) != 0)
742 if ((error
= zfs_secpolicy_write_perms(parentname
,
743 ZFS_DELEG_PERM_MOUNT
, cr
)) != 0)
750 zfs_secpolicy_rename(zfs_cmd_t
*zc
, cred_t
*cr
)
752 return (zfs_secpolicy_rename_perms(zc
->zc_name
, zc
->zc_value
, cr
));
756 zfs_secpolicy_promote(zfs_cmd_t
*zc
, cred_t
*cr
)
758 char parentname
[MAXNAMELEN
];
762 error
= zfs_secpolicy_write_perms(zc
->zc_name
,
763 ZFS_DELEG_PERM_PROMOTE
, cr
);
767 error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &clone
);
770 dsl_dataset_t
*pclone
= NULL
;
772 dd
= clone
->os_dsl_dataset
->ds_dir
;
774 rw_enter(&dd
->dd_pool
->dp_config_rwlock
, RW_READER
);
775 error
= dsl_dataset_hold_obj(dd
->dd_pool
,
776 dd
->dd_phys
->dd_origin_obj
, FTAG
, &pclone
);
777 rw_exit(&dd
->dd_pool
->dp_config_rwlock
);
779 dmu_objset_rele(clone
, FTAG
);
783 error
= zfs_secpolicy_write_perms(zc
->zc_name
,
784 ZFS_DELEG_PERM_MOUNT
, cr
);
786 dsl_dataset_name(pclone
, parentname
);
787 dmu_objset_rele(clone
, FTAG
);
788 dsl_dataset_rele(pclone
, FTAG
);
790 error
= zfs_secpolicy_write_perms(parentname
,
791 ZFS_DELEG_PERM_PROMOTE
, cr
);
797 zfs_secpolicy_receive(zfs_cmd_t
*zc
, cred_t
*cr
)
801 if ((error
= zfs_secpolicy_write_perms(zc
->zc_name
,
802 ZFS_DELEG_PERM_RECEIVE
, cr
)) != 0)
805 if ((error
= zfs_secpolicy_write_perms(zc
->zc_name
,
806 ZFS_DELEG_PERM_MOUNT
, cr
)) != 0)
809 return (zfs_secpolicy_write_perms(zc
->zc_name
,
810 ZFS_DELEG_PERM_CREATE
, cr
));
814 zfs_secpolicy_snapshot_perms(const char *name
, cred_t
*cr
)
816 return (zfs_secpolicy_write_perms(name
,
817 ZFS_DELEG_PERM_SNAPSHOT
, cr
));
821 zfs_secpolicy_snapshot(zfs_cmd_t
*zc
, cred_t
*cr
)
824 return (zfs_secpolicy_snapshot_perms(zc
->zc_name
, cr
));
828 zfs_secpolicy_create(zfs_cmd_t
*zc
, cred_t
*cr
)
830 char parentname
[MAXNAMELEN
];
833 if ((error
= zfs_get_parent(zc
->zc_name
, parentname
,
834 sizeof (parentname
))) != 0)
837 if (zc
->zc_value
[0] != '\0') {
838 if ((error
= zfs_secpolicy_write_perms(zc
->zc_value
,
839 ZFS_DELEG_PERM_CLONE
, cr
)) != 0)
843 if ((error
= zfs_secpolicy_write_perms(parentname
,
844 ZFS_DELEG_PERM_CREATE
, cr
)) != 0)
847 error
= zfs_secpolicy_write_perms(parentname
,
848 ZFS_DELEG_PERM_MOUNT
, cr
);
855 zfs_secpolicy_umount(zfs_cmd_t
*zc
, cred_t
*cr
)
859 error
= secpolicy_fs_unmount(cr
, NULL
);
861 error
= dsl_deleg_access(zc
->zc_name
, ZFS_DELEG_PERM_MOUNT
, cr
);
865 #endif /* HAVE_ZPL */
868 * Policy for pool operations - create/destroy pools, add vdevs, etc. Requires
869 * SYS_CONFIG privilege, which is not available in a local zone.
873 zfs_secpolicy_config(zfs_cmd_t
*zc
, cred_t
*cr
)
875 if (secpolicy_sys_config(cr
, B_FALSE
) != 0)
882 * Policy for object to name lookups.
886 zfs_secpolicy_diff(zfs_cmd_t
*zc
, cred_t
*cr
)
890 if ((error
= secpolicy_sys_config(cr
, B_FALSE
)) == 0)
893 error
= zfs_secpolicy_write_perms(zc
->zc_name
, ZFS_DELEG_PERM_DIFF
, cr
);
898 * Policy for fault injection. Requires all privileges.
902 zfs_secpolicy_inject(zfs_cmd_t
*zc
, cred_t
*cr
)
904 return (secpolicy_zinject(cr
));
908 zfs_secpolicy_inherit(zfs_cmd_t
*zc
, cred_t
*cr
)
910 zfs_prop_t prop
= zfs_name_to_prop(zc
->zc_value
);
912 if (prop
== ZPROP_INVAL
) {
913 if (!zfs_prop_user(zc
->zc_value
))
915 return (zfs_secpolicy_write_perms(zc
->zc_name
,
916 ZFS_DELEG_PERM_USERPROP
, cr
));
918 return (zfs_secpolicy_setprop(zc
->zc_name
, prop
,
924 zfs_secpolicy_userspace_one(zfs_cmd_t
*zc
, cred_t
*cr
)
926 int err
= zfs_secpolicy_read(zc
, cr
);
930 if (zc
->zc_objset_type
>= ZFS_NUM_USERQUOTA_PROPS
)
933 if (zc
->zc_value
[0] == 0) {
935 * They are asking about a posix uid/gid. If it's
936 * themself, allow it.
938 if (zc
->zc_objset_type
== ZFS_PROP_USERUSED
||
939 zc
->zc_objset_type
== ZFS_PROP_USERQUOTA
) {
940 if (zc
->zc_guid
== crgetuid(cr
))
943 if (groupmember(zc
->zc_guid
, cr
))
948 return (zfs_secpolicy_write_perms(zc
->zc_name
,
949 userquota_perms
[zc
->zc_objset_type
], cr
));
953 zfs_secpolicy_userspace_many(zfs_cmd_t
*zc
, cred_t
*cr
)
955 int err
= zfs_secpolicy_read(zc
, cr
);
959 if (zc
->zc_objset_type
>= ZFS_NUM_USERQUOTA_PROPS
)
962 return (zfs_secpolicy_write_perms(zc
->zc_name
,
963 userquota_perms
[zc
->zc_objset_type
], cr
));
967 zfs_secpolicy_userspace_upgrade(zfs_cmd_t
*zc
, cred_t
*cr
)
969 return (zfs_secpolicy_setprop(zc
->zc_name
, ZFS_PROP_VERSION
,
974 zfs_secpolicy_hold(zfs_cmd_t
*zc
, cred_t
*cr
)
976 return (zfs_secpolicy_write_perms(zc
->zc_name
,
977 ZFS_DELEG_PERM_HOLD
, cr
));
981 zfs_secpolicy_release(zfs_cmd_t
*zc
, cred_t
*cr
)
983 return (zfs_secpolicy_write_perms(zc
->zc_name
,
984 ZFS_DELEG_PERM_RELEASE
, cr
));
988 * Policy for allowing temporary snapshots to be taken or released
991 zfs_secpolicy_tmp_snapshot(zfs_cmd_t
*zc
, cred_t
*cr
)
994 * A temporary snapshot is the same as a snapshot,
995 * hold, destroy and release all rolled into one.
996 * Delegated diff alone is sufficient that we allow this.
1000 if ((error
= zfs_secpolicy_write_perms(zc
->zc_name
,
1001 ZFS_DELEG_PERM_DIFF
, cr
)) == 0)
1004 error
= zfs_secpolicy_snapshot(zc
, cr
);
1006 error
= zfs_secpolicy_hold(zc
, cr
);
1008 error
= zfs_secpolicy_release(zc
, cr
);
1010 error
= zfs_secpolicy_destroy(zc
, cr
);
1015 * Returns the nvlist as specified by the user in the zfs_cmd_t.
1018 get_nvlist(uint64_t nvl
, uint64_t size
, int iflag
, nvlist_t
**nvp
)
1022 nvlist_t
*list
= NULL
;
1025 * Read in and unpack the user-supplied nvlist.
1030 packed
= kmem_alloc(size
, KM_SLEEP
| KM_NODEBUG
);
1032 if ((error
= ddi_copyin((void *)(uintptr_t)nvl
, packed
, size
,
1034 kmem_free(packed
, size
);
1038 if ((error
= nvlist_unpack(packed
, size
, &list
, 0)) != 0) {
1039 kmem_free(packed
, size
);
1043 kmem_free(packed
, size
);
1050 fit_error_list(zfs_cmd_t
*zc
, nvlist_t
**errors
)
1054 VERIFY(nvlist_size(*errors
, &size
, NV_ENCODE_NATIVE
) == 0);
1056 if (size
> zc
->zc_nvlist_dst_size
) {
1057 nvpair_t
*more_errors
;
1060 if (zc
->zc_nvlist_dst_size
< 1024)
1063 VERIFY(nvlist_add_int32(*errors
, ZPROP_N_MORE_ERRORS
, 0) == 0);
1064 more_errors
= nvlist_prev_nvpair(*errors
, NULL
);
1067 nvpair_t
*pair
= nvlist_prev_nvpair(*errors
,
1069 VERIFY(nvlist_remove_nvpair(*errors
, pair
) == 0);
1071 VERIFY(nvlist_size(*errors
, &size
,
1072 NV_ENCODE_NATIVE
) == 0);
1073 } while (size
> zc
->zc_nvlist_dst_size
);
1075 VERIFY(nvlist_remove_nvpair(*errors
, more_errors
) == 0);
1076 VERIFY(nvlist_add_int32(*errors
, ZPROP_N_MORE_ERRORS
, n
) == 0);
1077 ASSERT(nvlist_size(*errors
, &size
, NV_ENCODE_NATIVE
) == 0);
1078 ASSERT(size
<= zc
->zc_nvlist_dst_size
);
1085 put_nvlist(zfs_cmd_t
*zc
, nvlist_t
*nvl
)
1087 char *packed
= NULL
;
1091 VERIFY(nvlist_size(nvl
, &size
, NV_ENCODE_NATIVE
) == 0);
1093 if (size
> zc
->zc_nvlist_dst_size
) {
1096 packed
= kmem_alloc(size
, KM_SLEEP
| KM_NODEBUG
);
1097 VERIFY(nvlist_pack(nvl
, &packed
, &size
, NV_ENCODE_NATIVE
,
1099 if (ddi_copyout(packed
, (void *)(uintptr_t)zc
->zc_nvlist_dst
,
1100 size
, zc
->zc_iflags
) != 0)
1102 kmem_free(packed
, size
);
1105 zc
->zc_nvlist_dst_size
= size
;
1111 getzfsvfs(const char *dsname
, zfsvfs_t
**zfvp
)
1116 error
= dmu_objset_hold(dsname
, FTAG
, &os
);
1119 if (dmu_objset_type(os
) != DMU_OST_ZFS
) {
1120 dmu_objset_rele(os
, FTAG
);
1124 mutex_enter(&os
->os_user_ptr_lock
);
1125 *zfvp
= dmu_objset_get_user(os
);
1127 VFS_HOLD((*zfvp
)->z_vfs
);
1131 mutex_exit(&os
->os_user_ptr_lock
);
1132 dmu_objset_rele(os
, FTAG
);
1138 * Find a zfsvfs_t for a mounted filesystem, or create our own, in which
1139 * case its z_vfs will be NULL, and it will be opened as the owner.
1142 zfsvfs_hold(const char *name
, void *tag
, zfsvfs_t
**zfvp
, boolean_t writer
)
1147 if (getzfsvfs(name
, zfvp
) != 0)
1148 error
= zfsvfs_create(name
, zfvp
);
1150 rrw_enter(&(*zfvp
)->z_teardown_lock
, (writer
) ? RW_WRITER
:
1152 if ((*zfvp
)->z_unmounted
) {
1154 * XXX we could probably try again, since the unmounting
1155 * thread should be just about to disassociate the
1156 * objset from the zfsvfs.
1158 rrw_exit(&(*zfvp
)->z_teardown_lock
, tag
);
1169 zfsvfs_rele(zfsvfs_t
*zfsvfs
, void *tag
)
1172 rrw_exit(&zfsvfs
->z_teardown_lock
, tag
);
1174 if (zfsvfs
->z_vfs
) {
1175 VFS_RELE(zfsvfs
->z_vfs
);
1177 dmu_objset_disown(zfsvfs
->z_os
, zfsvfs
);
1178 zfsvfs_free(zfsvfs
);
1184 zfs_ioc_pool_create(zfs_cmd_t
*zc
)
1187 nvlist_t
*config
, *props
= NULL
;
1188 nvlist_t
*rootprops
= NULL
;
1189 nvlist_t
*zplprops
= NULL
;
1192 if ((error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1193 zc
->zc_iflags
, &config
)))
1196 if (zc
->zc_nvlist_src_size
!= 0 && (error
=
1197 get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
1198 zc
->zc_iflags
, &props
))) {
1199 nvlist_free(config
);
1204 nvlist_t
*nvl
= NULL
;
1205 uint64_t version
= SPA_VERSION
;
1207 (void) nvlist_lookup_uint64(props
,
1208 zpool_prop_to_name(ZPOOL_PROP_VERSION
), &version
);
1209 if (version
< SPA_VERSION_INITIAL
|| version
> SPA_VERSION
) {
1211 goto pool_props_bad
;
1213 (void) nvlist_lookup_nvlist(props
, ZPOOL_ROOTFS_PROPS
, &nvl
);
1215 error
= nvlist_dup(nvl
, &rootprops
, KM_SLEEP
);
1217 nvlist_free(config
);
1221 (void) nvlist_remove_all(props
, ZPOOL_ROOTFS_PROPS
);
1223 VERIFY(nvlist_alloc(&zplprops
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
1224 error
= zfs_fill_zplprops_root(version
, rootprops
,
1227 goto pool_props_bad
;
1230 buf
= history_str_get(zc
);
1232 error
= spa_create(zc
->zc_name
, config
, props
, buf
, zplprops
);
1235 * Set the remaining root properties
1237 if (!error
&& (error
= zfs_set_prop_nvlist(zc
->zc_name
,
1238 ZPROP_SRC_LOCAL
, rootprops
, NULL
)) != 0)
1239 (void) spa_destroy(zc
->zc_name
);
1242 history_str_free(buf
);
1245 nvlist_free(rootprops
);
1246 nvlist_free(zplprops
);
1247 nvlist_free(config
);
1254 zfs_ioc_pool_destroy(zfs_cmd_t
*zc
)
1257 zfs_log_history(zc
);
1258 error
= spa_destroy(zc
->zc_name
);
1260 zvol_remove_minors(zc
->zc_name
);
1265 zfs_ioc_pool_import(zfs_cmd_t
*zc
)
1267 nvlist_t
*config
, *props
= NULL
;
1271 if ((error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1272 zc
->zc_iflags
, &config
)) != 0)
1275 if (zc
->zc_nvlist_src_size
!= 0 && (error
=
1276 get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
1277 zc
->zc_iflags
, &props
))) {
1278 nvlist_free(config
);
1282 if (nvlist_lookup_uint64(config
, ZPOOL_CONFIG_POOL_GUID
, &guid
) != 0 ||
1283 guid
!= zc
->zc_guid
)
1286 error
= spa_import(zc
->zc_name
, config
, props
, zc
->zc_cookie
);
1288 if (zc
->zc_nvlist_dst
!= 0) {
1291 if ((err
= put_nvlist(zc
, config
)) != 0)
1296 zvol_create_minors(zc
->zc_name
);
1298 nvlist_free(config
);
1307 zfs_ioc_pool_export(zfs_cmd_t
*zc
)
1310 boolean_t force
= (boolean_t
)zc
->zc_cookie
;
1311 boolean_t hardforce
= (boolean_t
)zc
->zc_guid
;
1313 zfs_log_history(zc
);
1314 error
= spa_export(zc
->zc_name
, NULL
, force
, hardforce
);
1316 zvol_remove_minors(zc
->zc_name
);
1321 zfs_ioc_pool_configs(zfs_cmd_t
*zc
)
1326 if ((configs
= spa_all_configs(&zc
->zc_cookie
)) == NULL
)
1329 error
= put_nvlist(zc
, configs
);
1331 nvlist_free(configs
);
1337 zfs_ioc_pool_stats(zfs_cmd_t
*zc
)
1343 error
= spa_get_stats(zc
->zc_name
, &config
, zc
->zc_value
,
1344 sizeof (zc
->zc_value
));
1346 if (config
!= NULL
) {
1347 ret
= put_nvlist(zc
, config
);
1348 nvlist_free(config
);
1351 * The config may be present even if 'error' is non-zero.
1352 * In this case we return success, and preserve the real errno
1355 zc
->zc_cookie
= error
;
1364 * Try to import the given pool, returning pool stats as appropriate so that
1365 * user land knows which devices are available and overall pool health.
1368 zfs_ioc_pool_tryimport(zfs_cmd_t
*zc
)
1370 nvlist_t
*tryconfig
, *config
;
1373 if ((error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1374 zc
->zc_iflags
, &tryconfig
)) != 0)
1377 config
= spa_tryimport(tryconfig
);
1379 nvlist_free(tryconfig
);
1384 error
= put_nvlist(zc
, config
);
1385 nvlist_free(config
);
1392 * zc_name name of the pool
1393 * zc_cookie scan func (pool_scan_func_t)
1396 zfs_ioc_pool_scan(zfs_cmd_t
*zc
)
1401 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1404 if (zc
->zc_cookie
== POOL_SCAN_NONE
)
1405 error
= spa_scan_stop(spa
);
1407 error
= spa_scan(spa
, zc
->zc_cookie
);
1409 spa_close(spa
, FTAG
);
1415 zfs_ioc_pool_freeze(zfs_cmd_t
*zc
)
1420 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
1423 spa_close(spa
, FTAG
);
1429 zfs_ioc_pool_upgrade(zfs_cmd_t
*zc
)
1434 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1437 if (zc
->zc_cookie
< spa_version(spa
) || zc
->zc_cookie
> SPA_VERSION
) {
1438 spa_close(spa
, FTAG
);
1442 spa_upgrade(spa
, zc
->zc_cookie
);
1443 spa_close(spa
, FTAG
);
1449 zfs_ioc_pool_get_history(zfs_cmd_t
*zc
)
1456 if ((size
= zc
->zc_history_len
) == 0)
1459 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1462 if (spa_version(spa
) < SPA_VERSION_ZPOOL_HISTORY
) {
1463 spa_close(spa
, FTAG
);
1467 hist_buf
= kmem_alloc(size
, KM_SLEEP
);
1468 if ((error
= spa_history_get(spa
, &zc
->zc_history_offset
,
1469 &zc
->zc_history_len
, hist_buf
)) == 0) {
1470 error
= ddi_copyout(hist_buf
,
1471 (void *)(uintptr_t)zc
->zc_history
,
1472 zc
->zc_history_len
, zc
->zc_iflags
);
1475 spa_close(spa
, FTAG
);
1476 kmem_free(hist_buf
, size
);
1481 zfs_ioc_dsobj_to_dsname(zfs_cmd_t
*zc
)
1485 if ((error
= dsl_dsobj_to_dsname(zc
->zc_name
,zc
->zc_obj
,zc
->zc_value
)))
1493 * zc_name name of filesystem
1494 * zc_obj object to find
1497 * zc_value name of object
1500 zfs_ioc_obj_to_path(zfs_cmd_t
*zc
)
1505 /* XXX reading from objset not owned */
1506 if ((error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
)) != 0)
1508 if (dmu_objset_type(os
) != DMU_OST_ZFS
) {
1509 dmu_objset_rele(os
, FTAG
);
1512 error
= zfs_obj_to_path(os
, zc
->zc_obj
, zc
->zc_value
,
1513 sizeof (zc
->zc_value
));
1514 dmu_objset_rele(os
, FTAG
);
1521 * zc_name name of filesystem
1522 * zc_obj object to find
1525 * zc_stat stats on object
1526 * zc_value path to object
1529 zfs_ioc_obj_to_stats(zfs_cmd_t
*zc
)
1534 /* XXX reading from objset not owned */
1535 if ((error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
)) != 0)
1537 if (dmu_objset_type(os
) != DMU_OST_ZFS
) {
1538 dmu_objset_rele(os
, FTAG
);
1541 error
= zfs_obj_to_stats(os
, zc
->zc_obj
, &zc
->zc_stat
, zc
->zc_value
,
1542 sizeof (zc
->zc_value
));
1543 dmu_objset_rele(os
, FTAG
);
1549 zfs_ioc_vdev_add(zfs_cmd_t
*zc
)
1553 nvlist_t
*config
, **l2cache
, **spares
;
1554 uint_t nl2cache
= 0, nspares
= 0;
1556 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
1560 error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1561 zc
->zc_iflags
, &config
);
1562 (void) nvlist_lookup_nvlist_array(config
, ZPOOL_CONFIG_L2CACHE
,
1563 &l2cache
, &nl2cache
);
1565 (void) nvlist_lookup_nvlist_array(config
, ZPOOL_CONFIG_SPARES
,
1569 * A root pool with concatenated devices is not supported.
1570 * Thus, can not add a device to a root pool.
1572 * Intent log device can not be added to a rootpool because
1573 * during mountroot, zil is replayed, a seperated log device
1574 * can not be accessed during the mountroot time.
1576 * l2cache and spare devices are ok to be added to a rootpool.
1578 if (spa_bootfs(spa
) != 0 && nl2cache
== 0 && nspares
== 0) {
1579 nvlist_free(config
);
1580 spa_close(spa
, FTAG
);
1585 error
= spa_vdev_add(spa
, config
);
1586 nvlist_free(config
);
1588 spa_close(spa
, FTAG
);
1594 * zc_name name of the pool
1595 * zc_nvlist_conf nvlist of devices to remove
1596 * zc_cookie to stop the remove?
1599 zfs_ioc_vdev_remove(zfs_cmd_t
*zc
)
1604 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
1607 error
= spa_vdev_remove(spa
, zc
->zc_guid
, B_FALSE
);
1608 spa_close(spa
, FTAG
);
1613 zfs_ioc_vdev_set_state(zfs_cmd_t
*zc
)
1617 vdev_state_t newstate
= VDEV_STATE_UNKNOWN
;
1619 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1621 switch (zc
->zc_cookie
) {
1622 case VDEV_STATE_ONLINE
:
1623 error
= vdev_online(spa
, zc
->zc_guid
, zc
->zc_obj
, &newstate
);
1626 case VDEV_STATE_OFFLINE
:
1627 error
= vdev_offline(spa
, zc
->zc_guid
, zc
->zc_obj
);
1630 case VDEV_STATE_FAULTED
:
1631 if (zc
->zc_obj
!= VDEV_AUX_ERR_EXCEEDED
&&
1632 zc
->zc_obj
!= VDEV_AUX_EXTERNAL
)
1633 zc
->zc_obj
= VDEV_AUX_ERR_EXCEEDED
;
1635 error
= vdev_fault(spa
, zc
->zc_guid
, zc
->zc_obj
);
1638 case VDEV_STATE_DEGRADED
:
1639 if (zc
->zc_obj
!= VDEV_AUX_ERR_EXCEEDED
&&
1640 zc
->zc_obj
!= VDEV_AUX_EXTERNAL
)
1641 zc
->zc_obj
= VDEV_AUX_ERR_EXCEEDED
;
1643 error
= vdev_degrade(spa
, zc
->zc_guid
, zc
->zc_obj
);
1649 zc
->zc_cookie
= newstate
;
1650 spa_close(spa
, FTAG
);
1655 zfs_ioc_vdev_attach(zfs_cmd_t
*zc
)
1658 int replacing
= zc
->zc_cookie
;
1662 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1665 if ((error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1666 zc
->zc_iflags
, &config
)) == 0) {
1667 error
= spa_vdev_attach(spa
, zc
->zc_guid
, config
, replacing
);
1668 nvlist_free(config
);
1671 spa_close(spa
, FTAG
);
1676 zfs_ioc_vdev_detach(zfs_cmd_t
*zc
)
1681 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1684 error
= spa_vdev_detach(spa
, zc
->zc_guid
, 0, B_FALSE
);
1686 spa_close(spa
, FTAG
);
1691 zfs_ioc_vdev_split(zfs_cmd_t
*zc
)
1694 nvlist_t
*config
, *props
= NULL
;
1696 boolean_t exp
= !!(zc
->zc_cookie
& ZPOOL_EXPORT_AFTER_SPLIT
);
1698 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1701 if ((error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1702 zc
->zc_iflags
, &config
))) {
1703 spa_close(spa
, FTAG
);
1707 if (zc
->zc_nvlist_src_size
!= 0 && (error
=
1708 get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
1709 zc
->zc_iflags
, &props
))) {
1710 spa_close(spa
, FTAG
);
1711 nvlist_free(config
);
1715 error
= spa_vdev_split_mirror(spa
, zc
->zc_string
, config
, props
, exp
);
1717 spa_close(spa
, FTAG
);
1719 nvlist_free(config
);
1726 zfs_ioc_vdev_setpath(zfs_cmd_t
*zc
)
1729 char *path
= zc
->zc_value
;
1730 uint64_t guid
= zc
->zc_guid
;
1733 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
1737 error
= spa_vdev_setpath(spa
, guid
, path
);
1738 spa_close(spa
, FTAG
);
1743 zfs_ioc_vdev_setfru(zfs_cmd_t
*zc
)
1746 char *fru
= zc
->zc_value
;
1747 uint64_t guid
= zc
->zc_guid
;
1750 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
1754 error
= spa_vdev_setfru(spa
, guid
, fru
);
1755 spa_close(spa
, FTAG
);
1760 zfs_ioc_objset_stats_impl(zfs_cmd_t
*zc
, objset_t
*os
)
1765 dmu_objset_fast_stat(os
, &zc
->zc_objset_stats
);
1767 if (zc
->zc_nvlist_dst
!= 0 &&
1768 (error
= dsl_prop_get_all(os
, &nv
)) == 0) {
1769 dmu_objset_stats(os
, nv
);
1771 * NB: zvol_get_stats() will read the objset contents,
1772 * which we aren't supposed to do with a
1773 * DS_MODE_USER hold, because it could be
1774 * inconsistent. So this is a bit of a workaround...
1775 * XXX reading with out owning
1777 if (!zc
->zc_objset_stats
.dds_inconsistent
) {
1778 if (dmu_objset_type(os
) == DMU_OST_ZVOL
)
1779 error
= zvol_get_stats(os
, nv
);
1782 error
= put_nvlist(zc
, nv
);
1791 * zc_name name of filesystem
1792 * zc_nvlist_dst_size size of buffer for property nvlist
1795 * zc_objset_stats stats
1796 * zc_nvlist_dst property nvlist
1797 * zc_nvlist_dst_size size of property nvlist
1800 zfs_ioc_objset_stats(zfs_cmd_t
*zc
)
1802 objset_t
*os
= NULL
;
1805 if ((error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
)))
1808 error
= zfs_ioc_objset_stats_impl(zc
, os
);
1810 dmu_objset_rele(os
, FTAG
);
1817 * zc_name name of filesystem
1818 * zc_nvlist_dst_size size of buffer for property nvlist
1821 * zc_nvlist_dst received property nvlist
1822 * zc_nvlist_dst_size size of received property nvlist
1824 * Gets received properties (distinct from local properties on or after
1825 * SPA_VERSION_RECVD_PROPS) for callers who want to differentiate received from
1826 * local property values.
1829 zfs_ioc_objset_recvd_props(zfs_cmd_t
*zc
)
1831 objset_t
*os
= NULL
;
1835 if ((error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
)))
1839 * Without this check, we would return local property values if the
1840 * caller has not already received properties on or after
1841 * SPA_VERSION_RECVD_PROPS.
1843 if (!dsl_prop_get_hasrecvd(os
)) {
1844 dmu_objset_rele(os
, FTAG
);
1848 if (zc
->zc_nvlist_dst
!= 0 &&
1849 (error
= dsl_prop_get_received(os
, &nv
)) == 0) {
1850 error
= put_nvlist(zc
, nv
);
1854 dmu_objset_rele(os
, FTAG
);
1859 nvl_add_zplprop(objset_t
*os
, nvlist_t
*props
, zfs_prop_t prop
)
1865 * zfs_get_zplprop() will either find a value or give us
1866 * the default value (if there is one).
1868 if ((error
= zfs_get_zplprop(os
, prop
, &value
)) != 0)
1870 VERIFY(nvlist_add_uint64(props
, zfs_prop_to_name(prop
), value
) == 0);
1876 * zc_name name of filesystem
1877 * zc_nvlist_dst_size size of buffer for zpl property nvlist
1880 * zc_nvlist_dst zpl property nvlist
1881 * zc_nvlist_dst_size size of zpl property nvlist
1884 zfs_ioc_objset_zplprops(zfs_cmd_t
*zc
)
1889 /* XXX reading without owning */
1890 if ((err
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
)))
1893 dmu_objset_fast_stat(os
, &zc
->zc_objset_stats
);
1896 * NB: nvl_add_zplprop() will read the objset contents,
1897 * which we aren't supposed to do with a DS_MODE_USER
1898 * hold, because it could be inconsistent.
1900 if (zc
->zc_nvlist_dst
!= 0 &&
1901 !zc
->zc_objset_stats
.dds_inconsistent
&&
1902 dmu_objset_type(os
) == DMU_OST_ZFS
) {
1905 VERIFY(nvlist_alloc(&nv
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
1906 if ((err
= nvl_add_zplprop(os
, nv
, ZFS_PROP_VERSION
)) == 0 &&
1907 (err
= nvl_add_zplprop(os
, nv
, ZFS_PROP_NORMALIZE
)) == 0 &&
1908 (err
= nvl_add_zplprop(os
, nv
, ZFS_PROP_UTF8ONLY
)) == 0 &&
1909 (err
= nvl_add_zplprop(os
, nv
, ZFS_PROP_CASE
)) == 0)
1910 err
= put_nvlist(zc
, nv
);
1915 dmu_objset_rele(os
, FTAG
);
1920 dataset_name_hidden(const char *name
)
1923 * Skip over datasets that are not visible in this zone,
1924 * internal datasets (which have a $ in their name), and
1925 * temporary datasets (which have a % in their name).
1927 if (strchr(name
, '$') != NULL
)
1929 if (strchr(name
, '%') != NULL
)
1931 if (!INGLOBALZONE(curproc
) && !zone_dataset_visible(name
, NULL
))
1938 * zc_name name of filesystem
1939 * zc_cookie zap cursor
1940 * zc_nvlist_dst_size size of buffer for property nvlist
1943 * zc_name name of next filesystem
1944 * zc_cookie zap cursor
1945 * zc_objset_stats stats
1946 * zc_nvlist_dst property nvlist
1947 * zc_nvlist_dst_size size of property nvlist
1950 zfs_ioc_dataset_list_next(zfs_cmd_t
*zc
)
1955 size_t orig_len
= strlen(zc
->zc_name
);
1958 if ((error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
))) {
1959 if (error
== ENOENT
)
1964 p
= strrchr(zc
->zc_name
, '/');
1965 if (p
== NULL
|| p
[1] != '\0')
1966 (void) strlcat(zc
->zc_name
, "/", sizeof (zc
->zc_name
));
1967 p
= zc
->zc_name
+ strlen(zc
->zc_name
);
1970 * Pre-fetch the datasets. dmu_objset_prefetch() always returns 0
1971 * but is not declared void because its called by dmu_objset_find().
1973 if (zc
->zc_cookie
== 0) {
1974 uint64_t cookie
= 0;
1975 int len
= sizeof (zc
->zc_name
) - (p
- zc
->zc_name
);
1977 while (dmu_dir_list_next(os
, len
, p
, NULL
, &cookie
) == 0)
1978 (void) dmu_objset_prefetch(p
, NULL
);
1982 error
= dmu_dir_list_next(os
,
1983 sizeof (zc
->zc_name
) - (p
- zc
->zc_name
), p
,
1984 NULL
, &zc
->zc_cookie
);
1985 if (error
== ENOENT
)
1987 } while (error
== 0 && dataset_name_hidden(zc
->zc_name
) &&
1988 !(zc
->zc_iflags
& FKIOCTL
));
1989 dmu_objset_rele(os
, FTAG
);
1992 * If it's an internal dataset (ie. with a '$' in its name),
1993 * don't try to get stats for it, otherwise we'll return ENOENT.
1995 if (error
== 0 && strchr(zc
->zc_name
, '$') == NULL
) {
1996 error
= zfs_ioc_objset_stats(zc
); /* fill in the stats */
1997 if (error
== ENOENT
) {
1998 /* We lost a race with destroy, get the next one. */
1999 zc
->zc_name
[orig_len
] = '\0';
2008 * zc_name name of filesystem
2009 * zc_cookie zap cursor
2010 * zc_nvlist_dst_size size of buffer for property nvlist
2013 * zc_name name of next snapshot
2014 * zc_objset_stats stats
2015 * zc_nvlist_dst property nvlist
2016 * zc_nvlist_dst_size size of property nvlist
2019 zfs_ioc_snapshot_list_next(zfs_cmd_t
*zc
)
2025 if (zc
->zc_cookie
== 0)
2026 (void) dmu_objset_find(zc
->zc_name
, dmu_objset_prefetch
,
2027 NULL
, DS_FIND_SNAPSHOTS
);
2029 error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
);
2031 return (error
== ENOENT
? ESRCH
: error
);
2034 * A dataset name of maximum length cannot have any snapshots,
2035 * so exit immediately.
2037 if (strlcat(zc
->zc_name
, "@", sizeof (zc
->zc_name
)) >= MAXNAMELEN
) {
2038 dmu_objset_rele(os
, FTAG
);
2042 error
= dmu_snapshot_list_next(os
,
2043 sizeof (zc
->zc_name
) - strlen(zc
->zc_name
),
2044 zc
->zc_name
+ strlen(zc
->zc_name
), &zc
->zc_obj
, &zc
->zc_cookie
,
2049 dsl_pool_t
*dp
= os
->os_dsl_dataset
->ds_dir
->dd_pool
;
2052 * Since we probably don't have a hold on this snapshot,
2053 * it's possible that the objsetid could have been destroyed
2054 * and reused for a new objset. It's OK if this happens during
2055 * a zfs send operation, since the new createtxg will be
2056 * beyond the range we're interested in.
2058 rw_enter(&dp
->dp_config_rwlock
, RW_READER
);
2059 error
= dsl_dataset_hold_obj(dp
, zc
->zc_obj
, FTAG
, &ds
);
2060 rw_exit(&dp
->dp_config_rwlock
);
2062 if (error
== ENOENT
) {
2063 /* Racing with destroy, get the next one. */
2064 *strchr(zc
->zc_name
, '@') = '\0';
2065 dmu_objset_rele(os
, FTAG
);
2071 error
= dmu_objset_from_ds(ds
, &ossnap
);
2073 error
= zfs_ioc_objset_stats_impl(zc
, ossnap
);
2074 dsl_dataset_rele(ds
, FTAG
);
2076 } else if (error
== ENOENT
) {
2080 dmu_objset_rele(os
, FTAG
);
2081 /* if we failed, undo the @ that we tacked on to zc_name */
2083 *strchr(zc
->zc_name
, '@') = '\0';
2088 zfs_prop_set_userquota(const char *dsname
, nvpair_t
*pair
)
2091 const char *propname
= nvpair_name(pair
);
2093 unsigned int vallen
;
2096 zfs_userquota_prop_t type
;
2102 if (nvpair_type(pair
) == DATA_TYPE_NVLIST
) {
2104 VERIFY(nvpair_value_nvlist(pair
, &attrs
) == 0);
2105 if (nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
2111 * A correctly constructed propname is encoded as
2112 * userquota@<rid>-<domain>.
2114 if ((dash
= strchr(propname
, '-')) == NULL
||
2115 nvpair_value_uint64_array(pair
, &valary
, &vallen
) != 0 ||
2124 err
= zfsvfs_hold(dsname
, FTAG
, &zfsvfs
, B_FALSE
);
2126 err
= zfs_set_userquota(zfsvfs
, type
, domain
, rid
, quota
);
2127 zfsvfs_rele(zfsvfs
, FTAG
);
2137 * If the named property is one that has a special function to set its value,
2138 * return 0 on success and a positive error code on failure; otherwise if it is
2139 * not one of the special properties handled by this function, return -1.
2141 * XXX: It would be better for callers of the property interface if we handled
2142 * these special cases in dsl_prop.c (in the dsl layer).
2145 zfs_prop_set_special(const char *dsname
, zprop_source_t source
,
2148 const char *propname
= nvpair_name(pair
);
2149 zfs_prop_t prop
= zfs_name_to_prop(propname
);
2153 if (prop
== ZPROP_INVAL
) {
2154 if (zfs_prop_userquota(propname
))
2155 return (zfs_prop_set_userquota(dsname
, pair
));
2159 if (nvpair_type(pair
) == DATA_TYPE_NVLIST
) {
2161 VERIFY(nvpair_value_nvlist(pair
, &attrs
) == 0);
2162 VERIFY(nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
2166 if (zfs_prop_get_type(prop
) == PROP_TYPE_STRING
)
2169 VERIFY(0 == nvpair_value_uint64(pair
, &intval
));
2172 case ZFS_PROP_QUOTA
:
2173 err
= dsl_dir_set_quota(dsname
, source
, intval
);
2175 case ZFS_PROP_REFQUOTA
:
2176 err
= dsl_dataset_set_quota(dsname
, source
, intval
);
2178 case ZFS_PROP_RESERVATION
:
2179 err
= dsl_dir_set_reservation(dsname
, source
, intval
);
2181 case ZFS_PROP_REFRESERVATION
:
2182 err
= dsl_dataset_set_reservation(dsname
, source
, intval
);
2184 case ZFS_PROP_VOLSIZE
:
2185 err
= zvol_set_volsize(dsname
, intval
);
2187 case ZFS_PROP_VERSION
:
2191 if ((err
= zfsvfs_hold(dsname
, FTAG
, &zfsvfs
, B_TRUE
)) != 0)
2195 err
= zfs_set_version(zfsvfs
, intval
);
2197 zfsvfs_rele(zfsvfs
, FTAG
);
2199 if (err
== 0 && intval
>= ZPL_VERSION_USERSPACE
) {
2202 zc
= kmem_zalloc(sizeof (zfs_cmd_t
), KM_SLEEP
);
2203 (void) strcpy(zc
->zc_name
, dsname
);
2204 (void) zfs_ioc_userspace_upgrade(zc
);
2205 kmem_free(zc
, sizeof (zfs_cmd_t
));
2218 * This function is best effort. If it fails to set any of the given properties,
2219 * it continues to set as many as it can and returns the first error
2220 * encountered. If the caller provides a non-NULL errlist, it also gives the
2221 * complete list of names of all the properties it failed to set along with the
2222 * corresponding error numbers. The caller is responsible for freeing the
2225 * If every property is set successfully, zero is returned and the list pointed
2226 * at by errlist is NULL.
2229 zfs_set_prop_nvlist(const char *dsname
, zprop_source_t source
, nvlist_t
*nvl
,
2237 nvlist_t
*genericnvl
;
2241 VERIFY(nvlist_alloc(&genericnvl
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
2242 VERIFY(nvlist_alloc(&errors
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
2243 VERIFY(nvlist_alloc(&retrynvl
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
2247 while ((pair
= nvlist_next_nvpair(nvl
, pair
)) != NULL
) {
2248 const char *propname
= nvpair_name(pair
);
2249 zfs_prop_t prop
= zfs_name_to_prop(propname
);
2252 /* decode the property value */
2254 if (nvpair_type(pair
) == DATA_TYPE_NVLIST
) {
2256 VERIFY(nvpair_value_nvlist(pair
, &attrs
) == 0);
2257 if (nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
2262 /* Validate value type */
2263 if (err
== 0 && prop
== ZPROP_INVAL
) {
2264 if (zfs_prop_user(propname
)) {
2265 if (nvpair_type(propval
) != DATA_TYPE_STRING
)
2267 } else if (zfs_prop_userquota(propname
)) {
2268 if (nvpair_type(propval
) !=
2269 DATA_TYPE_UINT64_ARRAY
)
2272 } else if (err
== 0) {
2273 if (nvpair_type(propval
) == DATA_TYPE_STRING
) {
2274 if (zfs_prop_get_type(prop
) != PROP_TYPE_STRING
)
2276 } else if (nvpair_type(propval
) == DATA_TYPE_UINT64
) {
2279 VERIFY(nvpair_value_uint64(propval
,
2282 switch (zfs_prop_get_type(prop
)) {
2283 case PROP_TYPE_NUMBER
:
2285 case PROP_TYPE_STRING
:
2288 case PROP_TYPE_INDEX
:
2289 if (zfs_prop_index_to_string(prop
,
2290 intval
, &unused
) != 0)
2295 "unknown property type");
2302 /* Validate permissions */
2304 err
= zfs_check_settable(dsname
, pair
, CRED());
2307 err
= zfs_prop_set_special(dsname
, source
, pair
);
2310 * For better performance we build up a list of
2311 * properties to set in a single transaction.
2313 err
= nvlist_add_nvpair(genericnvl
, pair
);
2314 } else if (err
!= 0 && nvl
!= retrynvl
) {
2316 * This may be a spurious error caused by
2317 * receiving quota and reservation out of order.
2318 * Try again in a second pass.
2320 err
= nvlist_add_nvpair(retrynvl
, pair
);
2325 VERIFY(nvlist_add_int32(errors
, propname
, err
) == 0);
2328 if (nvl
!= retrynvl
&& !nvlist_empty(retrynvl
)) {
2333 if (!nvlist_empty(genericnvl
) &&
2334 dsl_props_set(dsname
, source
, genericnvl
) != 0) {
2336 * If this fails, we still want to set as many properties as we
2337 * can, so try setting them individually.
2340 while ((pair
= nvlist_next_nvpair(genericnvl
, pair
)) != NULL
) {
2341 const char *propname
= nvpair_name(pair
);
2345 if (nvpair_type(pair
) == DATA_TYPE_NVLIST
) {
2347 VERIFY(nvpair_value_nvlist(pair
, &attrs
) == 0);
2348 VERIFY(nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
2352 if (nvpair_type(propval
) == DATA_TYPE_STRING
) {
2353 VERIFY(nvpair_value_string(propval
,
2355 err
= dsl_prop_set(dsname
, propname
, source
, 1,
2356 strlen(strval
) + 1, strval
);
2358 VERIFY(nvpair_value_uint64(propval
,
2360 err
= dsl_prop_set(dsname
, propname
, source
, 8,
2365 VERIFY(nvlist_add_int32(errors
, propname
,
2370 nvlist_free(genericnvl
);
2371 nvlist_free(retrynvl
);
2373 if ((pair
= nvlist_next_nvpair(errors
, NULL
)) == NULL
) {
2374 nvlist_free(errors
);
2377 VERIFY(nvpair_value_int32(pair
, &rv
) == 0);
2380 if (errlist
== NULL
)
2381 nvlist_free(errors
);
2389 * Check that all the properties are valid user properties.
2392 zfs_check_userprops(char *fsname
, nvlist_t
*nvl
)
2394 nvpair_t
*pair
= NULL
;
2397 while ((pair
= nvlist_next_nvpair(nvl
, pair
)) != NULL
) {
2398 const char *propname
= nvpair_name(pair
);
2401 if (!zfs_prop_user(propname
) ||
2402 nvpair_type(pair
) != DATA_TYPE_STRING
)
2405 if ((error
= zfs_secpolicy_write_perms(fsname
,
2406 ZFS_DELEG_PERM_USERPROP
, CRED())))
2409 if (strlen(propname
) >= ZAP_MAXNAMELEN
)
2410 return (ENAMETOOLONG
);
2412 VERIFY(nvpair_value_string(pair
, &valstr
) == 0);
2413 if (strlen(valstr
) >= ZAP_MAXVALUELEN
)
2420 props_skip(nvlist_t
*props
, nvlist_t
*skipped
, nvlist_t
**newprops
)
2424 VERIFY(nvlist_alloc(newprops
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
2427 while ((pair
= nvlist_next_nvpair(props
, pair
)) != NULL
) {
2428 if (nvlist_exists(skipped
, nvpair_name(pair
)))
2431 VERIFY(nvlist_add_nvpair(*newprops
, pair
) == 0);
2436 clear_received_props(objset_t
*os
, const char *fs
, nvlist_t
*props
,
2440 nvlist_t
*cleared_props
= NULL
;
2441 props_skip(props
, skipped
, &cleared_props
);
2442 if (!nvlist_empty(cleared_props
)) {
2444 * Acts on local properties until the dataset has received
2445 * properties at least once on or after SPA_VERSION_RECVD_PROPS.
2447 zprop_source_t flags
= (ZPROP_SRC_NONE
|
2448 (dsl_prop_get_hasrecvd(os
) ? ZPROP_SRC_RECEIVED
: 0));
2449 err
= zfs_set_prop_nvlist(fs
, flags
, cleared_props
, NULL
);
2451 nvlist_free(cleared_props
);
2457 * zc_name name of filesystem
2458 * zc_value name of property to set
2459 * zc_nvlist_src{_size} nvlist of properties to apply
2460 * zc_cookie received properties flag
2463 * zc_nvlist_dst{_size} error for each unapplied received property
2466 zfs_ioc_set_prop(zfs_cmd_t
*zc
)
2469 boolean_t received
= zc
->zc_cookie
;
2470 zprop_source_t source
= (received
? ZPROP_SRC_RECEIVED
:
2472 nvlist_t
*errors
= NULL
;
2475 if ((error
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
2476 zc
->zc_iflags
, &nvl
)) != 0)
2480 nvlist_t
*origprops
;
2483 if (dmu_objset_hold(zc
->zc_name
, FTAG
, &os
) == 0) {
2484 if (dsl_prop_get_received(os
, &origprops
) == 0) {
2485 (void) clear_received_props(os
,
2486 zc
->zc_name
, origprops
, nvl
);
2487 nvlist_free(origprops
);
2490 dsl_prop_set_hasrecvd(os
);
2491 dmu_objset_rele(os
, FTAG
);
2495 error
= zfs_set_prop_nvlist(zc
->zc_name
, source
, nvl
, &errors
);
2497 if (zc
->zc_nvlist_dst
!= 0 && errors
!= NULL
) {
2498 (void) put_nvlist(zc
, errors
);
2501 nvlist_free(errors
);
2508 * zc_name name of filesystem
2509 * zc_value name of property to inherit
2510 * zc_cookie revert to received value if TRUE
2515 zfs_ioc_inherit_prop(zfs_cmd_t
*zc
)
2517 const char *propname
= zc
->zc_value
;
2518 zfs_prop_t prop
= zfs_name_to_prop(propname
);
2519 boolean_t received
= zc
->zc_cookie
;
2520 zprop_source_t source
= (received
2521 ? ZPROP_SRC_NONE
/* revert to received value, if any */
2522 : ZPROP_SRC_INHERITED
); /* explicitly inherit */
2531 * zfs_prop_set_special() expects properties in the form of an
2532 * nvpair with type info.
2534 if (prop
== ZPROP_INVAL
) {
2535 if (!zfs_prop_user(propname
))
2538 type
= PROP_TYPE_STRING
;
2539 } else if (prop
== ZFS_PROP_VOLSIZE
||
2540 prop
== ZFS_PROP_VERSION
) {
2543 type
= zfs_prop_get_type(prop
);
2546 VERIFY(nvlist_alloc(&dummy
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
2549 case PROP_TYPE_STRING
:
2550 VERIFY(0 == nvlist_add_string(dummy
, propname
, ""));
2552 case PROP_TYPE_NUMBER
:
2553 case PROP_TYPE_INDEX
:
2554 VERIFY(0 == nvlist_add_uint64(dummy
, propname
, 0));
2561 pair
= nvlist_next_nvpair(dummy
, NULL
);
2562 err
= zfs_prop_set_special(zc
->zc_name
, source
, pair
);
2565 return (err
); /* special property already handled */
2568 * Only check this in the non-received case. We want to allow
2569 * 'inherit -S' to revert non-inheritable properties like quota
2570 * and reservation to the received or default values even though
2571 * they are not considered inheritable.
2573 if (prop
!= ZPROP_INVAL
&& !zfs_prop_inheritable(prop
))
2577 /* the property name has been validated by zfs_secpolicy_inherit() */
2578 return (dsl_prop_set(zc
->zc_name
, zc
->zc_value
, source
, 0, 0, NULL
));
2582 zfs_ioc_pool_set_props(zfs_cmd_t
*zc
)
2589 if ((error
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
2590 zc
->zc_iflags
, &props
)))
2594 * If the only property is the configfile, then just do a spa_lookup()
2595 * to handle the faulted case.
2597 pair
= nvlist_next_nvpair(props
, NULL
);
2598 if (pair
!= NULL
&& strcmp(nvpair_name(pair
),
2599 zpool_prop_to_name(ZPOOL_PROP_CACHEFILE
)) == 0 &&
2600 nvlist_next_nvpair(props
, pair
) == NULL
) {
2601 mutex_enter(&spa_namespace_lock
);
2602 if ((spa
= spa_lookup(zc
->zc_name
)) != NULL
) {
2603 spa_configfile_set(spa
, props
, B_FALSE
);
2604 spa_config_sync(spa
, B_FALSE
, B_TRUE
);
2606 mutex_exit(&spa_namespace_lock
);
2613 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0) {
2618 error
= spa_prop_set(spa
, props
);
2621 spa_close(spa
, FTAG
);
2627 zfs_ioc_pool_get_props(zfs_cmd_t
*zc
)
2631 nvlist_t
*nvp
= NULL
;
2633 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0) {
2635 * If the pool is faulted, there may be properties we can still
2636 * get (such as altroot and cachefile), so attempt to get them
2639 mutex_enter(&spa_namespace_lock
);
2640 if ((spa
= spa_lookup(zc
->zc_name
)) != NULL
)
2641 error
= spa_prop_get(spa
, &nvp
);
2642 mutex_exit(&spa_namespace_lock
);
2644 error
= spa_prop_get(spa
, &nvp
);
2645 spa_close(spa
, FTAG
);
2648 if (error
== 0 && zc
->zc_nvlist_dst
!= 0)
2649 error
= put_nvlist(zc
, nvp
);
2659 * zc_name name of volume
2664 zfs_ioc_create_minor(zfs_cmd_t
*zc
)
2666 return (zvol_create_minor(zc
->zc_name
));
2671 * zc_name name of volume
2676 zfs_ioc_remove_minor(zfs_cmd_t
*zc
)
2678 return (zvol_remove_minor(zc
->zc_name
));
2683 * zc_name name of filesystem
2684 * zc_nvlist_src{_size} nvlist of delegated permissions
2685 * zc_perm_action allow/unallow flag
2690 zfs_ioc_set_fsacl(zfs_cmd_t
*zc
)
2693 nvlist_t
*fsaclnv
= NULL
;
2695 if ((error
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
2696 zc
->zc_iflags
, &fsaclnv
)) != 0)
2700 * Verify nvlist is constructed correctly
2702 if ((error
= zfs_deleg_verify_nvlist(fsaclnv
)) != 0) {
2703 nvlist_free(fsaclnv
);
2708 * If we don't have PRIV_SYS_MOUNT, then validate
2709 * that user is allowed to hand out each permission in
2713 error
= secpolicy_zfs(CRED());
2715 if (zc
->zc_perm_action
== B_FALSE
) {
2716 error
= dsl_deleg_can_allow(zc
->zc_name
,
2719 error
= dsl_deleg_can_unallow(zc
->zc_name
,
2725 error
= dsl_deleg_set(zc
->zc_name
, fsaclnv
, zc
->zc_perm_action
);
2727 nvlist_free(fsaclnv
);
2733 * zc_name name of filesystem
2736 * zc_nvlist_src{_size} nvlist of delegated permissions
2739 zfs_ioc_get_fsacl(zfs_cmd_t
*zc
)
2744 if ((error
= dsl_deleg_get(zc
->zc_name
, &nvp
)) == 0) {
2745 error
= put_nvlist(zc
, nvp
);
2754 * Search the vfs list for a specified resource. Returns a pointer to it
2755 * or NULL if no suitable entry is found. The caller of this routine
2756 * is responsible for releasing the returned vfs pointer.
2759 zfs_get_vfs(const char *resource
)
2762 struct vfs
*vfs_found
= NULL
;
2764 vfs_list_read_lock();
2767 if (strcmp(refstr_value(vfsp
->vfs_resource
), resource
) == 0) {
2772 vfsp
= vfsp
->vfs_next
;
2773 } while (vfsp
!= rootvfs
);
2777 #endif /* HAVE_ZPL */
2781 zfs_create_cb(objset_t
*os
, void *arg
, cred_t
*cr
, dmu_tx_t
*tx
)
2783 zfs_creat_t
*zct
= arg
;
2785 zfs_create_fs(os
, cr
, zct
->zct_zplprops
, tx
);
2788 #define ZFS_PROP_UNDEFINED ((uint64_t)-1)
2792 * createprops list of properties requested by creator
2793 * default_zplver zpl version to use if unspecified in createprops
2794 * fuids_ok fuids allowed in this version of the spa?
2795 * os parent objset pointer (NULL if root fs)
2798 * zplprops values for the zplprops we attach to the master node object
2799 * is_ci true if requested file system will be purely case-insensitive
2801 * Determine the settings for utf8only, normalization and
2802 * casesensitivity. Specific values may have been requested by the
2803 * creator and/or we can inherit values from the parent dataset. If
2804 * the file system is of too early a vintage, a creator can not
2805 * request settings for these properties, even if the requested
2806 * setting is the default value. We don't actually want to create dsl
2807 * properties for these, so remove them from the source nvlist after
2811 zfs_fill_zplprops_impl(objset_t
*os
, uint64_t zplver
,
2812 boolean_t fuids_ok
, boolean_t sa_ok
, nvlist_t
*createprops
,
2813 nvlist_t
*zplprops
, boolean_t
*is_ci
)
2815 uint64_t sense
= ZFS_PROP_UNDEFINED
;
2816 uint64_t norm
= ZFS_PROP_UNDEFINED
;
2817 uint64_t u8
= ZFS_PROP_UNDEFINED
;
2819 ASSERT(zplprops
!= NULL
);
2822 * Pull out creator prop choices, if any.
2825 (void) nvlist_lookup_uint64(createprops
,
2826 zfs_prop_to_name(ZFS_PROP_VERSION
), &zplver
);
2827 (void) nvlist_lookup_uint64(createprops
,
2828 zfs_prop_to_name(ZFS_PROP_NORMALIZE
), &norm
);
2829 (void) nvlist_remove_all(createprops
,
2830 zfs_prop_to_name(ZFS_PROP_NORMALIZE
));
2831 (void) nvlist_lookup_uint64(createprops
,
2832 zfs_prop_to_name(ZFS_PROP_UTF8ONLY
), &u8
);
2833 (void) nvlist_remove_all(createprops
,
2834 zfs_prop_to_name(ZFS_PROP_UTF8ONLY
));
2835 (void) nvlist_lookup_uint64(createprops
,
2836 zfs_prop_to_name(ZFS_PROP_CASE
), &sense
);
2837 (void) nvlist_remove_all(createprops
,
2838 zfs_prop_to_name(ZFS_PROP_CASE
));
2842 * If the zpl version requested is whacky or the file system
2843 * or pool is version is too "young" to support normalization
2844 * and the creator tried to set a value for one of the props,
2847 if ((zplver
< ZPL_VERSION_INITIAL
|| zplver
> ZPL_VERSION
) ||
2848 (zplver
>= ZPL_VERSION_FUID
&& !fuids_ok
) ||
2849 (zplver
>= ZPL_VERSION_SA
&& !sa_ok
) ||
2850 (zplver
< ZPL_VERSION_NORMALIZATION
&&
2851 (norm
!= ZFS_PROP_UNDEFINED
|| u8
!= ZFS_PROP_UNDEFINED
||
2852 sense
!= ZFS_PROP_UNDEFINED
)))
2856 * Put the version in the zplprops
2858 VERIFY(nvlist_add_uint64(zplprops
,
2859 zfs_prop_to_name(ZFS_PROP_VERSION
), zplver
) == 0);
2861 if (norm
== ZFS_PROP_UNDEFINED
)
2862 VERIFY(zfs_get_zplprop(os
, ZFS_PROP_NORMALIZE
, &norm
) == 0);
2863 VERIFY(nvlist_add_uint64(zplprops
,
2864 zfs_prop_to_name(ZFS_PROP_NORMALIZE
), norm
) == 0);
2867 * If we're normalizing, names must always be valid UTF-8 strings.
2871 if (u8
== ZFS_PROP_UNDEFINED
)
2872 VERIFY(zfs_get_zplprop(os
, ZFS_PROP_UTF8ONLY
, &u8
) == 0);
2873 VERIFY(nvlist_add_uint64(zplprops
,
2874 zfs_prop_to_name(ZFS_PROP_UTF8ONLY
), u8
) == 0);
2876 if (sense
== ZFS_PROP_UNDEFINED
)
2877 VERIFY(zfs_get_zplprop(os
, ZFS_PROP_CASE
, &sense
) == 0);
2878 VERIFY(nvlist_add_uint64(zplprops
,
2879 zfs_prop_to_name(ZFS_PROP_CASE
), sense
) == 0);
2882 *is_ci
= (sense
== ZFS_CASE_INSENSITIVE
);
2888 zfs_fill_zplprops(const char *dataset
, nvlist_t
*createprops
,
2889 nvlist_t
*zplprops
, boolean_t
*is_ci
)
2891 boolean_t fuids_ok
, sa_ok
;
2892 uint64_t zplver
= ZPL_VERSION
;
2893 objset_t
*os
= NULL
;
2894 char parentname
[MAXNAMELEN
];
2900 (void) strlcpy(parentname
, dataset
, sizeof (parentname
));
2901 cp
= strrchr(parentname
, '/');
2905 if ((error
= spa_open(dataset
, &spa
, FTAG
)) != 0)
2908 spa_vers
= spa_version(spa
);
2909 spa_close(spa
, FTAG
);
2911 zplver
= zfs_zpl_version_map(spa_vers
);
2912 fuids_ok
= (zplver
>= ZPL_VERSION_FUID
);
2913 sa_ok
= (zplver
>= ZPL_VERSION_SA
);
2916 * Open parent object set so we can inherit zplprop values.
2918 if ((error
= dmu_objset_hold(parentname
, FTAG
, &os
)) != 0)
2921 error
= zfs_fill_zplprops_impl(os
, zplver
, fuids_ok
, sa_ok
, createprops
,
2923 dmu_objset_rele(os
, FTAG
);
2928 zfs_fill_zplprops_root(uint64_t spa_vers
, nvlist_t
*createprops
,
2929 nvlist_t
*zplprops
, boolean_t
*is_ci
)
2933 uint64_t zplver
= ZPL_VERSION
;
2936 zplver
= zfs_zpl_version_map(spa_vers
);
2937 fuids_ok
= (zplver
>= ZPL_VERSION_FUID
);
2938 sa_ok
= (zplver
>= ZPL_VERSION_SA
);
2940 error
= zfs_fill_zplprops_impl(NULL
, zplver
, fuids_ok
, sa_ok
,
2941 createprops
, zplprops
, is_ci
);
2947 * zc_objset_type type of objset to create (fs vs zvol)
2948 * zc_name name of new objset
2949 * zc_value name of snapshot to clone from (may be empty)
2950 * zc_nvlist_src{_size} nvlist of properties to apply
2955 zfs_ioc_create(zfs_cmd_t
*zc
)
2960 nvlist_t
*nvprops
= NULL
;
2961 void (*cbfunc
)(objset_t
*os
, void *arg
, cred_t
*cr
, dmu_tx_t
*tx
);
2962 dmu_objset_type_t type
= zc
->zc_objset_type
;
2967 cbfunc
= zfs_create_cb
;
2971 cbfunc
= zvol_create_cb
;
2978 if (strchr(zc
->zc_name
, '@') ||
2979 strchr(zc
->zc_name
, '%'))
2982 if (zc
->zc_nvlist_src
!= 0 &&
2983 (error
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
2984 zc
->zc_iflags
, &nvprops
)) != 0)
2987 zct
.zct_zplprops
= NULL
;
2988 zct
.zct_props
= nvprops
;
2990 if (zc
->zc_value
[0] != '\0') {
2992 * We're creating a clone of an existing snapshot.
2994 zc
->zc_value
[sizeof (zc
->zc_value
) - 1] = '\0';
2995 if (dataset_namecheck(zc
->zc_value
, NULL
, NULL
) != 0) {
2996 nvlist_free(nvprops
);
3000 error
= dmu_objset_hold(zc
->zc_value
, FTAG
, &clone
);
3002 nvlist_free(nvprops
);
3006 error
= dmu_objset_clone(zc
->zc_name
, dmu_objset_ds(clone
), 0);
3007 dmu_objset_rele(clone
, FTAG
);
3009 nvlist_free(nvprops
);
3013 boolean_t is_insensitive
= B_FALSE
;
3015 if (cbfunc
== NULL
) {
3016 nvlist_free(nvprops
);
3020 if (type
== DMU_OST_ZVOL
) {
3021 uint64_t volsize
, volblocksize
;
3023 if (nvprops
== NULL
||
3024 nvlist_lookup_uint64(nvprops
,
3025 zfs_prop_to_name(ZFS_PROP_VOLSIZE
),
3027 nvlist_free(nvprops
);
3031 if ((error
= nvlist_lookup_uint64(nvprops
,
3032 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE
),
3033 &volblocksize
)) != 0 && error
!= ENOENT
) {
3034 nvlist_free(nvprops
);
3039 volblocksize
= zfs_prop_default_numeric(
3040 ZFS_PROP_VOLBLOCKSIZE
);
3042 if ((error
= zvol_check_volblocksize(
3043 volblocksize
)) != 0 ||
3044 (error
= zvol_check_volsize(volsize
,
3045 volblocksize
)) != 0) {
3046 nvlist_free(nvprops
);
3049 } else if (type
== DMU_OST_ZFS
) {
3053 * We have to have normalization and
3054 * case-folding flags correct when we do the
3055 * file system creation, so go figure them out
3058 VERIFY(nvlist_alloc(&zct
.zct_zplprops
,
3059 NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
3060 error
= zfs_fill_zplprops(zc
->zc_name
, nvprops
,
3061 zct
.zct_zplprops
, &is_insensitive
);
3063 nvlist_free(nvprops
);
3064 nvlist_free(zct
.zct_zplprops
);
3068 error
= dmu_objset_create(zc
->zc_name
, type
,
3069 is_insensitive
? DS_FLAG_CI_DATASET
: 0, cbfunc
, &zct
);
3070 nvlist_free(zct
.zct_zplprops
);
3074 * It would be nice to do this atomically.
3077 error
= zfs_set_prop_nvlist(zc
->zc_name
, ZPROP_SRC_LOCAL
,
3080 (void) dmu_objset_destroy(zc
->zc_name
, B_FALSE
);
3082 nvlist_free(nvprops
);
3088 * zc_name name of filesystem
3089 * zc_value short name of snapshot
3090 * zc_cookie recursive flag
3091 * zc_nvlist_src[_size] property list
3094 * zc_value short snapname (i.e. part after the '@')
3097 zfs_ioc_snapshot(zfs_cmd_t
*zc
)
3099 nvlist_t
*nvprops
= NULL
;
3101 boolean_t recursive
= zc
->zc_cookie
;
3103 if (snapshot_namecheck(zc
->zc_value
, NULL
, NULL
) != 0)
3106 if (zc
->zc_nvlist_src
!= 0 &&
3107 (error
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
3108 zc
->zc_iflags
, &nvprops
)) != 0)
3111 error
= zfs_check_userprops(zc
->zc_name
, nvprops
);
3115 if (!nvlist_empty(nvprops
) &&
3116 zfs_earlier_version(zc
->zc_name
, SPA_VERSION_SNAP_PROPS
)) {
3121 error
= dmu_objset_snapshot(zc
->zc_name
, zc
->zc_value
, NULL
,
3122 nvprops
, recursive
, B_FALSE
, -1);
3125 nvlist_free(nvprops
);
3130 zfs_unmount_snap(const char *name
, void *arg
)
3136 char *snapname
= arg
;
3137 char *fullname
= kmem_asprintf("%s@%s", name
, snapname
);
3138 vfsp
= zfs_get_vfs(fullname
);
3140 } else if (strchr(name
, '@')) {
3141 vfsp
= zfs_get_vfs(name
);
3146 * Always force the unmount for snapshots.
3148 int flag
= MS_FORCE
;
3151 if ((err
= vn_vfswlock(vfsp
->vfs_vnodecovered
)) != 0) {
3156 if ((err
= dounmount(vfsp
, flag
, kcred
)) != 0)
3159 #endif /* HAVE_ZPL */
3165 * zc_name name of filesystem
3166 * zc_value short name of snapshot
3167 * zc_defer_destroy mark for deferred destroy
3172 zfs_ioc_destroy_snaps(zfs_cmd_t
*zc
)
3176 if (snapshot_namecheck(zc
->zc_value
, NULL
, NULL
) != 0)
3178 err
= dmu_objset_find(zc
->zc_name
,
3179 zfs_unmount_snap
, zc
->zc_value
, DS_FIND_CHILDREN
);
3182 return (dmu_snapshots_destroy(zc
->zc_name
, zc
->zc_value
,
3183 zc
->zc_defer_destroy
));
3188 * zc_name name of dataset to destroy
3189 * zc_objset_type type of objset
3190 * zc_defer_destroy mark for deferred destroy
3195 zfs_ioc_destroy(zfs_cmd_t
*zc
)
3198 if (strchr(zc
->zc_name
, '@') && zc
->zc_objset_type
== DMU_OST_ZFS
) {
3199 err
= zfs_unmount_snap(zc
->zc_name
, NULL
);
3204 err
= dmu_objset_destroy(zc
->zc_name
, zc
->zc_defer_destroy
);
3205 if (zc
->zc_objset_type
== DMU_OST_ZVOL
&& err
== 0)
3206 (void) zvol_remove_minor(zc
->zc_name
);
3212 * zc_name name of dataset to rollback (to most recent snapshot)
3217 zfs_ioc_rollback(zfs_cmd_t
*zc
)
3220 dsl_dataset_t
*ds
, *clone
;
3225 error
= dsl_dataset_hold(zc
->zc_name
, FTAG
, &ds
);
3229 /* must not be a snapshot */
3230 if (dsl_dataset_is_snapshot(ds
)) {
3231 dsl_dataset_rele(ds
, FTAG
);
3235 /* must have a most recent snapshot */
3236 if (ds
->ds_phys
->ds_prev_snap_txg
< TXG_INITIAL
) {
3237 dsl_dataset_rele(ds
, FTAG
);
3242 * Create clone of most recent snapshot.
3244 clone_name
= kmem_asprintf("%s/%%rollback", zc
->zc_name
);
3245 error
= dmu_objset_clone(clone_name
, ds
->ds_prev
, DS_FLAG_INCONSISTENT
);
3249 error
= dsl_dataset_own(clone_name
, B_TRUE
, FTAG
, &clone
);
3256 if (getzfsvfs(zc
->zc_name
, &zfsvfs
) == 0) {
3257 error
= zfs_suspend_fs(zfsvfs
);
3261 if (dsl_dataset_tryown(ds
, B_FALSE
, FTAG
)) {
3262 error
= dsl_dataset_clone_swap(clone
, ds
,
3264 dsl_dataset_disown(ds
, FTAG
);
3269 resume_err
= zfs_resume_fs(zfsvfs
, zc
->zc_name
);
3270 error
= error
? error
: resume_err
;
3272 VFS_RELE(zfsvfs
->z_vfs
);
3274 if (dsl_dataset_tryown(ds
, B_FALSE
, FTAG
)) {
3275 error
= dsl_dataset_clone_swap(clone
, ds
, B_TRUE
);
3276 dsl_dataset_disown(ds
, FTAG
);
3284 * Destroy clone (which also closes it).
3286 (void) dsl_dataset_destroy(clone
, FTAG
, B_FALSE
);
3289 strfree(clone_name
);
3291 dsl_dataset_rele(ds
, FTAG
);
3295 #endif /* HAVE_ZPL */
3300 * zc_name old name of dataset
3301 * zc_value new name of dataset
3302 * zc_cookie recursive flag (only valid for snapshots)
3307 zfs_ioc_rename(zfs_cmd_t
*zc
)
3309 boolean_t recursive
= zc
->zc_cookie
& 1;
3311 zc
->zc_value
[sizeof (zc
->zc_value
) - 1] = '\0';
3312 if (dataset_namecheck(zc
->zc_value
, NULL
, NULL
) != 0 ||
3313 strchr(zc
->zc_value
, '%'))
3317 * Unmount snapshot unless we're doing a recursive rename,
3318 * in which case the dataset code figures out which snapshots
3321 if (!recursive
&& strchr(zc
->zc_name
, '@') != NULL
&&
3322 zc
->zc_objset_type
== DMU_OST_ZFS
) {
3323 int err
= zfs_unmount_snap(zc
->zc_name
, NULL
);
3327 if (zc
->zc_objset_type
== DMU_OST_ZVOL
)
3328 (void) zvol_remove_minor(zc
->zc_name
);
3329 return (dmu_objset_rename(zc
->zc_name
, zc
->zc_value
, recursive
));
3333 zfs_check_settable(const char *dsname
, nvpair_t
*pair
, cred_t
*cr
)
3335 const char *propname
= nvpair_name(pair
);
3336 boolean_t issnap
= (strchr(dsname
, '@') != NULL
);
3337 zfs_prop_t prop
= zfs_name_to_prop(propname
);
3341 if (prop
== ZPROP_INVAL
) {
3342 if (zfs_prop_user(propname
)) {
3343 if ((err
= zfs_secpolicy_write_perms(dsname
,
3344 ZFS_DELEG_PERM_USERPROP
, cr
)))
3349 if (!issnap
&& zfs_prop_userquota(propname
)) {
3350 const char *perm
= NULL
;
3351 const char *uq_prefix
=
3352 zfs_userquota_prop_prefixes
[ZFS_PROP_USERQUOTA
];
3353 const char *gq_prefix
=
3354 zfs_userquota_prop_prefixes
[ZFS_PROP_GROUPQUOTA
];
3356 if (strncmp(propname
, uq_prefix
,
3357 strlen(uq_prefix
)) == 0) {
3358 perm
= ZFS_DELEG_PERM_USERQUOTA
;
3359 } else if (strncmp(propname
, gq_prefix
,
3360 strlen(gq_prefix
)) == 0) {
3361 perm
= ZFS_DELEG_PERM_GROUPQUOTA
;
3363 /* USERUSED and GROUPUSED are read-only */
3367 if ((err
= zfs_secpolicy_write_perms(dsname
, perm
, cr
)))
3378 if (nvpair_type(pair
) == DATA_TYPE_NVLIST
) {
3380 * dsl_prop_get_all_impl() returns properties in this
3384 VERIFY(nvpair_value_nvlist(pair
, &attrs
) == 0);
3385 VERIFY(nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
3390 * Check that this value is valid for this pool version
3393 case ZFS_PROP_COMPRESSION
:
3395 * If the user specified gzip compression, make sure
3396 * the SPA supports it. We ignore any errors here since
3397 * we'll catch them later.
3399 if (nvpair_type(pair
) == DATA_TYPE_UINT64
&&
3400 nvpair_value_uint64(pair
, &intval
) == 0) {
3401 if (intval
>= ZIO_COMPRESS_GZIP_1
&&
3402 intval
<= ZIO_COMPRESS_GZIP_9
&&
3403 zfs_earlier_version(dsname
,
3404 SPA_VERSION_GZIP_COMPRESSION
)) {
3408 if (intval
== ZIO_COMPRESS_ZLE
&&
3409 zfs_earlier_version(dsname
,
3410 SPA_VERSION_ZLE_COMPRESSION
))
3414 * If this is a bootable dataset then
3415 * verify that the compression algorithm
3416 * is supported for booting. We must return
3417 * something other than ENOTSUP since it
3418 * implies a downrev pool version.
3420 if (zfs_is_bootfs(dsname
) &&
3421 !BOOTFS_COMPRESS_VALID(intval
)) {
3427 case ZFS_PROP_COPIES
:
3428 if (zfs_earlier_version(dsname
, SPA_VERSION_DITTO_BLOCKS
))
3432 case ZFS_PROP_DEDUP
:
3433 if (zfs_earlier_version(dsname
, SPA_VERSION_DEDUP
))
3437 case ZFS_PROP_SHARESMB
:
3438 if (zpl_earlier_version(dsname
, ZPL_VERSION_FUID
))
3442 case ZFS_PROP_ACLINHERIT
:
3443 if (nvpair_type(pair
) == DATA_TYPE_UINT64
&&
3444 nvpair_value_uint64(pair
, &intval
) == 0) {
3445 if (intval
== ZFS_ACL_PASSTHROUGH_X
&&
3446 zfs_earlier_version(dsname
,
3447 SPA_VERSION_PASSTHROUGH_X
))
3455 return (zfs_secpolicy_setprop(dsname
, prop
, pair
, CRED()));
3459 * Removes properties from the given props list that fail permission checks
3460 * needed to clear them and to restore them in case of a receive error. For each
3461 * property, make sure we have both set and inherit permissions.
3463 * Returns the first error encountered if any permission checks fail. If the
3464 * caller provides a non-NULL errlist, it also gives the complete list of names
3465 * of all the properties that failed a permission check along with the
3466 * corresponding error numbers. The caller is responsible for freeing the
3469 * If every property checks out successfully, zero is returned and the list
3470 * pointed at by errlist is NULL.
3473 zfs_check_clearable(char *dataset
, nvlist_t
*props
, nvlist_t
**errlist
)
3476 nvpair_t
*pair
, *next_pair
;
3483 VERIFY(nvlist_alloc(&errors
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
3485 zc
= kmem_alloc(sizeof (zfs_cmd_t
), KM_SLEEP
);
3486 (void) strcpy(zc
->zc_name
, dataset
);
3487 pair
= nvlist_next_nvpair(props
, NULL
);
3488 while (pair
!= NULL
) {
3489 next_pair
= nvlist_next_nvpair(props
, pair
);
3491 (void) strcpy(zc
->zc_value
, nvpair_name(pair
));
3492 if ((err
= zfs_check_settable(dataset
, pair
, CRED())) != 0 ||
3493 (err
= zfs_secpolicy_inherit(zc
, CRED())) != 0) {
3494 VERIFY(nvlist_remove_nvpair(props
, pair
) == 0);
3495 VERIFY(nvlist_add_int32(errors
,
3496 zc
->zc_value
, err
) == 0);
3500 kmem_free(zc
, sizeof (zfs_cmd_t
));
3502 if ((pair
= nvlist_next_nvpair(errors
, NULL
)) == NULL
) {
3503 nvlist_free(errors
);
3506 VERIFY(nvpair_value_int32(pair
, &rv
) == 0);
3509 if (errlist
== NULL
)
3510 nvlist_free(errors
);
3518 propval_equals(nvpair_t
*p1
, nvpair_t
*p2
)
3520 if (nvpair_type(p1
) == DATA_TYPE_NVLIST
) {
3521 /* dsl_prop_get_all_impl() format */
3523 VERIFY(nvpair_value_nvlist(p1
, &attrs
) == 0);
3524 VERIFY(nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
3528 if (nvpair_type(p2
) == DATA_TYPE_NVLIST
) {
3530 VERIFY(nvpair_value_nvlist(p2
, &attrs
) == 0);
3531 VERIFY(nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
3535 if (nvpair_type(p1
) != nvpair_type(p2
))
3538 if (nvpair_type(p1
) == DATA_TYPE_STRING
) {
3539 char *valstr1
, *valstr2
;
3541 VERIFY(nvpair_value_string(p1
, (char **)&valstr1
) == 0);
3542 VERIFY(nvpair_value_string(p2
, (char **)&valstr2
) == 0);
3543 return (strcmp(valstr1
, valstr2
) == 0);
3545 uint64_t intval1
, intval2
;
3547 VERIFY(nvpair_value_uint64(p1
, &intval1
) == 0);
3548 VERIFY(nvpair_value_uint64(p2
, &intval2
) == 0);
3549 return (intval1
== intval2
);
3554 * Remove properties from props if they are not going to change (as determined
3555 * by comparison with origprops). Remove them from origprops as well, since we
3556 * do not need to clear or restore properties that won't change.
3559 props_reduce(nvlist_t
*props
, nvlist_t
*origprops
)
3561 nvpair_t
*pair
, *next_pair
;
3563 if (origprops
== NULL
)
3564 return; /* all props need to be received */
3566 pair
= nvlist_next_nvpair(props
, NULL
);
3567 while (pair
!= NULL
) {
3568 const char *propname
= nvpair_name(pair
);
3571 next_pair
= nvlist_next_nvpair(props
, pair
);
3573 if ((nvlist_lookup_nvpair(origprops
, propname
,
3574 &match
) != 0) || !propval_equals(pair
, match
))
3575 goto next
; /* need to set received value */
3577 /* don't clear the existing received value */
3578 (void) nvlist_remove_nvpair(origprops
, match
);
3579 /* don't bother receiving the property */
3580 (void) nvlist_remove_nvpair(props
, pair
);
3587 static boolean_t zfs_ioc_recv_inject_err
;
3592 * zc_name name of containing filesystem
3593 * zc_nvlist_src{_size} nvlist of properties to apply
3594 * zc_value name of snapshot to create
3595 * zc_string name of clone origin (if DRR_FLAG_CLONE)
3596 * zc_cookie file descriptor to recv from
3597 * zc_begin_record the BEGIN record of the stream (not byteswapped)
3598 * zc_guid force flag
3599 * zc_cleanup_fd cleanup-on-exit file descriptor
3600 * zc_action_handle handle for this guid/ds mapping (or zero on first call)
3603 * zc_cookie number of bytes read
3604 * zc_nvlist_dst{_size} error for each unapplied received property
3605 * zc_obj zprop_errflags_t
3606 * zc_action_handle handle for this guid/ds mapping
3609 zfs_ioc_recv(zfs_cmd_t
*zc
)
3613 dmu_recv_cookie_t drc
;
3614 boolean_t force
= (boolean_t
)zc
->zc_guid
;
3617 int props_error
= 0;
3620 nvlist_t
*props
= NULL
; /* sent properties */
3621 nvlist_t
*origprops
= NULL
; /* existing properties */
3622 objset_t
*origin
= NULL
;
3624 char tofs
[ZFS_MAXNAMELEN
];
3625 boolean_t first_recvd_props
= B_FALSE
;
3627 if (dataset_namecheck(zc
->zc_value
, NULL
, NULL
) != 0 ||
3628 strchr(zc
->zc_value
, '@') == NULL
||
3629 strchr(zc
->zc_value
, '%'))
3632 (void) strcpy(tofs
, zc
->zc_value
);
3633 tosnap
= strchr(tofs
, '@');
3636 if (zc
->zc_nvlist_src
!= 0 &&
3637 (error
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
3638 zc
->zc_iflags
, &props
)) != 0)
3648 VERIFY(nvlist_alloc(&errors
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
3650 if (props
&& dmu_objset_hold(tofs
, FTAG
, &os
) == 0) {
3651 if ((spa_version(os
->os_spa
) >= SPA_VERSION_RECVD_PROPS
) &&
3652 !dsl_prop_get_hasrecvd(os
)) {
3653 first_recvd_props
= B_TRUE
;
3657 * If new received properties are supplied, they are to
3658 * completely replace the existing received properties, so stash
3659 * away the existing ones.
3661 if (dsl_prop_get_received(os
, &origprops
) == 0) {
3662 nvlist_t
*errlist
= NULL
;
3664 * Don't bother writing a property if its value won't
3665 * change (and avoid the unnecessary security checks).
3667 * The first receive after SPA_VERSION_RECVD_PROPS is a
3668 * special case where we blow away all local properties
3671 if (!first_recvd_props
)
3672 props_reduce(props
, origprops
);
3673 if (zfs_check_clearable(tofs
, origprops
,
3675 (void) nvlist_merge(errors
, errlist
, 0);
3676 nvlist_free(errlist
);
3679 dmu_objset_rele(os
, FTAG
);
3682 if (zc
->zc_string
[0]) {
3683 error
= dmu_objset_hold(zc
->zc_string
, FTAG
, &origin
);
3688 error
= dmu_recv_begin(tofs
, tosnap
, zc
->zc_top_ds
,
3689 &zc
->zc_begin_record
, force
, origin
, &drc
);
3691 dmu_objset_rele(origin
, FTAG
);
3696 * Set properties before we receive the stream so that they are applied
3697 * to the new data. Note that we must call dmu_recv_stream() if
3698 * dmu_recv_begin() succeeds.
3703 if (dmu_objset_from_ds(drc
.drc_logical_ds
, &os
) == 0) {
3704 if (drc
.drc_newfs
) {
3705 if (spa_version(os
->os_spa
) >=
3706 SPA_VERSION_RECVD_PROPS
)
3707 first_recvd_props
= B_TRUE
;
3708 } else if (origprops
!= NULL
) {
3709 if (clear_received_props(os
, tofs
, origprops
,
3710 first_recvd_props
? NULL
: props
) != 0)
3711 zc
->zc_obj
|= ZPROP_ERR_NOCLEAR
;
3713 zc
->zc_obj
|= ZPROP_ERR_NOCLEAR
;
3715 dsl_prop_set_hasrecvd(os
);
3716 } else if (!drc
.drc_newfs
) {
3717 zc
->zc_obj
|= ZPROP_ERR_NOCLEAR
;
3720 (void) zfs_set_prop_nvlist(tofs
, ZPROP_SRC_RECEIVED
,
3722 (void) nvlist_merge(errors
, errlist
, 0);
3723 nvlist_free(errlist
);
3726 if (fit_error_list(zc
, &errors
) != 0 || put_nvlist(zc
, errors
) != 0) {
3728 * Caller made zc->zc_nvlist_dst less than the minimum expected
3729 * size or supplied an invalid address.
3731 props_error
= EINVAL
;
3735 error
= dmu_recv_stream(&drc
, fp
->f_vnode
, &off
, zc
->zc_cleanup_fd
,
3736 &zc
->zc_action_handle
);
3740 zfsvfs_t
*zfsvfs
= NULL
;
3742 if (getzfsvfs(tofs
, &zfsvfs
) == 0) {
3746 error
= zfs_suspend_fs(zfsvfs
);
3748 * If the suspend fails, then the recv_end will
3749 * likely also fail, and clean up after itself.
3751 end_err
= dmu_recv_end(&drc
);
3753 error
= zfs_resume_fs(zfsvfs
, tofs
);
3754 error
= error
? error
: end_err
;
3755 VFS_RELE(zfsvfs
->z_vfs
);
3757 error
= dmu_recv_end(&drc
);
3760 error
= dmu_recv_end(&drc
);
3761 #endif /* HAVE_ZPL */
3764 zc
->zc_cookie
= off
- fp
->f_offset
;
3765 if (VOP_SEEK(fp
->f_vnode
, fp
->f_offset
, &off
, NULL
) == 0)
3769 if (zfs_ioc_recv_inject_err
) {
3770 zfs_ioc_recv_inject_err
= B_FALSE
;
3775 * On error, restore the original props.
3777 if (error
&& props
) {
3778 if (dmu_objset_hold(tofs
, FTAG
, &os
) == 0) {
3779 if (clear_received_props(os
, tofs
, props
, NULL
) != 0) {
3781 * We failed to clear the received properties.
3782 * Since we may have left a $recvd value on the
3783 * system, we can't clear the $hasrecvd flag.
3785 zc
->zc_obj
|= ZPROP_ERR_NORESTORE
;
3786 } else if (first_recvd_props
) {
3787 dsl_prop_unset_hasrecvd(os
);
3789 dmu_objset_rele(os
, FTAG
);
3790 } else if (!drc
.drc_newfs
) {
3791 /* We failed to clear the received properties. */
3792 zc
->zc_obj
|= ZPROP_ERR_NORESTORE
;
3795 if (origprops
== NULL
&& !drc
.drc_newfs
) {
3796 /* We failed to stash the original properties. */
3797 zc
->zc_obj
|= ZPROP_ERR_NORESTORE
;
3801 * dsl_props_set() will not convert RECEIVED to LOCAL on or
3802 * after SPA_VERSION_RECVD_PROPS, so we need to specify LOCAL
3803 * explictly if we're restoring local properties cleared in the
3804 * first new-style receive.
3806 if (origprops
!= NULL
&&
3807 zfs_set_prop_nvlist(tofs
, (first_recvd_props
?
3808 ZPROP_SRC_LOCAL
: ZPROP_SRC_RECEIVED
),
3809 origprops
, NULL
) != 0) {
3811 * We stashed the original properties but failed to
3814 zc
->zc_obj
|= ZPROP_ERR_NORESTORE
;
3819 nvlist_free(origprops
);
3820 nvlist_free(errors
);
3824 error
= props_error
;
3831 * zc_name name of snapshot to send
3832 * zc_cookie file descriptor to send stream to
3833 * zc_obj fromorigin flag (mutually exclusive with zc_fromobj)
3834 * zc_sendobj objsetid of snapshot to send
3835 * zc_fromobj objsetid of incremental fromsnap (may be zero)
3840 zfs_ioc_send(zfs_cmd_t
*zc
)
3842 objset_t
*fromsnap
= NULL
;
3848 dsl_dataset_t
*dsfrom
= NULL
;
3852 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
3856 dp
= spa_get_dsl(spa
);
3857 rw_enter(&dp
->dp_config_rwlock
, RW_READER
);
3858 error
= dsl_dataset_hold_obj(dp
, zc
->zc_sendobj
, FTAG
, &ds
);
3859 rw_exit(&dp
->dp_config_rwlock
);
3861 spa_close(spa
, FTAG
);
3865 error
= dmu_objset_from_ds(ds
, &tosnap
);
3867 dsl_dataset_rele(ds
, FTAG
);
3868 spa_close(spa
, FTAG
);
3872 if (zc
->zc_fromobj
!= 0) {
3873 rw_enter(&dp
->dp_config_rwlock
, RW_READER
);
3874 error
= dsl_dataset_hold_obj(dp
, zc
->zc_fromobj
, FTAG
, &dsfrom
);
3875 rw_exit(&dp
->dp_config_rwlock
);
3876 spa_close(spa
, FTAG
);
3878 dsl_dataset_rele(ds
, FTAG
);
3881 error
= dmu_objset_from_ds(dsfrom
, &fromsnap
);
3883 dsl_dataset_rele(dsfrom
, FTAG
);
3884 dsl_dataset_rele(ds
, FTAG
);
3888 spa_close(spa
, FTAG
);
3891 fp
= getf(zc
->zc_cookie
);
3893 dsl_dataset_rele(ds
, FTAG
);
3895 dsl_dataset_rele(dsfrom
, FTAG
);
3900 error
= dmu_sendbackup(tosnap
, fromsnap
, zc
->zc_obj
, fp
->f_vnode
, &off
);
3902 if (VOP_SEEK(fp
->f_vnode
, fp
->f_offset
, &off
, NULL
) == 0)
3904 releasef(zc
->zc_cookie
);
3906 dsl_dataset_rele(dsfrom
, FTAG
);
3907 dsl_dataset_rele(ds
, FTAG
);
3912 zfs_ioc_inject_fault(zfs_cmd_t
*zc
)
3916 error
= zio_inject_fault(zc
->zc_name
, (int)zc
->zc_guid
, &id
,
3917 &zc
->zc_inject_record
);
3920 zc
->zc_guid
= (uint64_t)id
;
3926 zfs_ioc_clear_fault(zfs_cmd_t
*zc
)
3928 return (zio_clear_fault((int)zc
->zc_guid
));
3932 zfs_ioc_inject_list_next(zfs_cmd_t
*zc
)
3934 int id
= (int)zc
->zc_guid
;
3937 error
= zio_inject_list_next(&id
, zc
->zc_name
, sizeof (zc
->zc_name
),
3938 &zc
->zc_inject_record
);
3946 zfs_ioc_error_log(zfs_cmd_t
*zc
)
3950 size_t count
= (size_t)zc
->zc_nvlist_dst_size
;
3952 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
3955 error
= spa_get_errlog(spa
, (void *)(uintptr_t)zc
->zc_nvlist_dst
,
3958 zc
->zc_nvlist_dst_size
= count
;
3960 zc
->zc_nvlist_dst_size
= spa_get_errlog_size(spa
);
3962 spa_close(spa
, FTAG
);
3968 zfs_ioc_clear(zfs_cmd_t
*zc
)
3975 * On zpool clear we also fix up missing slogs
3977 mutex_enter(&spa_namespace_lock
);
3978 spa
= spa_lookup(zc
->zc_name
);
3980 mutex_exit(&spa_namespace_lock
);
3983 if (spa_get_log_state(spa
) == SPA_LOG_MISSING
) {
3984 /* we need to let spa_open/spa_load clear the chains */
3985 spa_set_log_state(spa
, SPA_LOG_CLEAR
);
3987 spa
->spa_last_open_failed
= 0;
3988 mutex_exit(&spa_namespace_lock
);
3990 if (zc
->zc_cookie
& ZPOOL_NO_REWIND
) {
3991 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
3994 nvlist_t
*config
= NULL
;
3996 if (zc
->zc_nvlist_src
== 0)
3999 if ((error
= get_nvlist(zc
->zc_nvlist_src
,
4000 zc
->zc_nvlist_src_size
, zc
->zc_iflags
, &policy
)) == 0) {
4001 error
= spa_open_rewind(zc
->zc_name
, &spa
, FTAG
,
4003 if (config
!= NULL
) {
4006 if ((err
= put_nvlist(zc
, config
)) != 0)
4008 nvlist_free(config
);
4010 nvlist_free(policy
);
4017 spa_vdev_state_enter(spa
, SCL_NONE
);
4019 if (zc
->zc_guid
== 0) {
4022 vd
= spa_lookup_by_guid(spa
, zc
->zc_guid
, B_TRUE
);
4024 (void) spa_vdev_state_exit(spa
, NULL
, ENODEV
);
4025 spa_close(spa
, FTAG
);
4030 vdev_clear(spa
, vd
);
4032 (void) spa_vdev_state_exit(spa
, NULL
, 0);
4035 * Resume any suspended I/Os.
4037 if (zio_resume(spa
) != 0)
4040 spa_close(spa
, FTAG
);
4047 * zc_name name of filesystem
4048 * zc_value name of origin snapshot
4051 * zc_string name of conflicting snapshot, if there is one
4054 zfs_ioc_promote(zfs_cmd_t
*zc
)
4059 * We don't need to unmount *all* the origin fs's snapshots, but
4062 cp
= strchr(zc
->zc_value
, '@');
4065 (void) dmu_objset_find(zc
->zc_value
,
4066 zfs_unmount_snap
, NULL
, DS_FIND_SNAPSHOTS
);
4067 return (dsl_dataset_promote(zc
->zc_name
, zc
->zc_string
));
4071 * Retrieve a single {user|group}{used|quota}@... property.
4074 * zc_name name of filesystem
4075 * zc_objset_type zfs_userquota_prop_t
4076 * zc_value domain name (eg. "S-1-234-567-89")
4077 * zc_guid RID/UID/GID
4080 * zc_cookie property value
4083 zfs_ioc_userspace_one(zfs_cmd_t
*zc
)
4089 if (zc
->zc_objset_type
>= ZFS_NUM_USERQUOTA_PROPS
)
4092 error
= zfsvfs_hold(zc
->zc_name
, FTAG
, &zfsvfs
, B_FALSE
);
4096 error
= zfs_userspace_one(zfsvfs
,
4097 zc
->zc_objset_type
, zc
->zc_value
, zc
->zc_guid
, &zc
->zc_cookie
);
4098 zfsvfs_rele(zfsvfs
, FTAG
);
4103 #endif /* HAVE_ZPL */
4108 * zc_name name of filesystem
4109 * zc_cookie zap cursor
4110 * zc_objset_type zfs_userquota_prop_t
4111 * zc_nvlist_dst[_size] buffer to fill (not really an nvlist)
4114 * zc_nvlist_dst[_size] data buffer (array of zfs_useracct_t)
4115 * zc_cookie zap cursor
4118 zfs_ioc_userspace_many(zfs_cmd_t
*zc
)
4122 int bufsize
= zc
->zc_nvlist_dst_size
;
4127 int error
= zfsvfs_hold(zc
->zc_name
, FTAG
, &zfsvfs
, B_FALSE
);
4131 void *buf
= kmem_alloc(bufsize
, KM_SLEEP
);
4133 error
= zfs_userspace_many(zfsvfs
, zc
->zc_objset_type
, &zc
->zc_cookie
,
4134 buf
, &zc
->zc_nvlist_dst_size
);
4137 error
= xcopyout(buf
,
4138 (void *)(uintptr_t)zc
->zc_nvlist_dst
,
4139 zc
->zc_nvlist_dst_size
);
4141 kmem_free(buf
, bufsize
);
4142 zfsvfs_rele(zfsvfs
, FTAG
);
4147 #endif /* HAVE_ZPL */
4152 * zc_name name of filesystem
4158 zfs_ioc_userspace_upgrade(zfs_cmd_t
*zc
)
4165 if (getzfsvfs(zc
->zc_name
, &zfsvfs
) == 0) {
4166 if (!dmu_objset_userused_enabled(zfsvfs
->z_os
)) {
4168 * If userused is not enabled, it may be because the
4169 * objset needs to be closed & reopened (to grow the
4170 * objset_phys_t). Suspend/resume the fs will do that.
4172 error
= zfs_suspend_fs(zfsvfs
);
4174 error
= zfs_resume_fs(zfsvfs
, zc
->zc_name
);
4177 error
= dmu_objset_userspace_upgrade(zfsvfs
->z_os
);
4178 VFS_RELE(zfsvfs
->z_vfs
);
4180 /* XXX kind of reading contents without owning */
4181 error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
);
4185 error
= dmu_objset_userspace_upgrade(os
);
4186 dmu_objset_rele(os
, FTAG
);
4192 #endif /* HAVE_ZPL */
4196 * We don't want to have a hard dependency
4197 * against some special symbols in sharefs
4198 * nfs, and smbsrv. Determine them if needed when
4199 * the first file system is shared.
4200 * Neither sharefs, nfs or smbsrv are unloadable modules.
4203 int (*znfsexport_fs
)(void *arg
);
4204 int (*zshare_fs
)(enum sharefs_sys_op
, share_t
*, uint32_t);
4205 int (*zsmbexport_fs
)(void *arg
, boolean_t add_share
);
4207 int zfs_nfsshare_inited
;
4208 int zfs_smbshare_inited
;
4210 ddi_modhandle_t nfs_mod
;
4211 ddi_modhandle_t sharefs_mod
;
4212 ddi_modhandle_t smbsrv_mod
;
4213 kmutex_t zfs_share_lock
;
4220 ASSERT(MUTEX_HELD(&zfs_share_lock
));
4221 /* Both NFS and SMB shares also require sharetab support. */
4222 if (sharefs_mod
== NULL
&& ((sharefs_mod
=
4223 ddi_modopen("fs/sharefs",
4224 KRTLD_MODE_FIRST
, &error
)) == NULL
)) {
4227 if (zshare_fs
== NULL
&& ((zshare_fs
=
4228 (int (*)(enum sharefs_sys_op
, share_t
*, uint32_t))
4229 ddi_modsym(sharefs_mod
, "sharefs_impl", &error
)) == NULL
)) {
4234 #endif /* HAVE_ZPL */
4237 zfs_ioc_share(zfs_cmd_t
*zc
)
4243 switch (zc
->zc_share
.z_sharetype
) {
4245 case ZFS_UNSHARE_NFS
:
4246 if (zfs_nfsshare_inited
== 0) {
4247 mutex_enter(&zfs_share_lock
);
4248 if (nfs_mod
== NULL
&& ((nfs_mod
= ddi_modopen("fs/nfs",
4249 KRTLD_MODE_FIRST
, &error
)) == NULL
)) {
4250 mutex_exit(&zfs_share_lock
);
4253 if (znfsexport_fs
== NULL
&&
4254 ((znfsexport_fs
= (int (*)(void *))
4256 "nfs_export", &error
)) == NULL
)) {
4257 mutex_exit(&zfs_share_lock
);
4260 error
= zfs_init_sharefs();
4262 mutex_exit(&zfs_share_lock
);
4265 zfs_nfsshare_inited
= 1;
4266 mutex_exit(&zfs_share_lock
);
4270 case ZFS_UNSHARE_SMB
:
4271 if (zfs_smbshare_inited
== 0) {
4272 mutex_enter(&zfs_share_lock
);
4273 if (smbsrv_mod
== NULL
&& ((smbsrv_mod
=
4274 ddi_modopen("drv/smbsrv",
4275 KRTLD_MODE_FIRST
, &error
)) == NULL
)) {
4276 mutex_exit(&zfs_share_lock
);
4279 if (zsmbexport_fs
== NULL
&& ((zsmbexport_fs
=
4280 (int (*)(void *, boolean_t
))ddi_modsym(smbsrv_mod
,
4281 "smb_server_share", &error
)) == NULL
)) {
4282 mutex_exit(&zfs_share_lock
);
4285 error
= zfs_init_sharefs();
4287 mutex_exit(&zfs_share_lock
);
4290 zfs_smbshare_inited
= 1;
4291 mutex_exit(&zfs_share_lock
);
4298 switch (zc
->zc_share
.z_sharetype
) {
4300 case ZFS_UNSHARE_NFS
:
4302 znfsexport_fs((void *)
4303 (uintptr_t)zc
->zc_share
.z_exportdata
))
4307 case ZFS_UNSHARE_SMB
:
4308 if (error
= zsmbexport_fs((void *)
4309 (uintptr_t)zc
->zc_share
.z_exportdata
,
4310 zc
->zc_share
.z_sharetype
== ZFS_SHARE_SMB
?
4317 opcode
= (zc
->zc_share
.z_sharetype
== ZFS_SHARE_NFS
||
4318 zc
->zc_share
.z_sharetype
== ZFS_SHARE_SMB
) ?
4319 SHAREFS_ADD
: SHAREFS_REMOVE
;
4322 * Add or remove share from sharetab
4324 error
= zshare_fs(opcode
,
4325 (void *)(uintptr_t)zc
->zc_share
.z_sharedata
,
4326 zc
->zc_share
.z_sharemax
);
4331 #endif /* HAVE_ZPL */
4334 ace_t full_access
[] = {
4335 {(uid_t
)-1, ACE_ALL_PERMS
, ACE_EVERYONE
, 0}
4340 * zc_name name of containing filesystem
4341 * zc_obj object # beyond which we want next in-use object #
4344 * zc_obj next in-use object #
4347 zfs_ioc_next_obj(zfs_cmd_t
*zc
)
4349 objset_t
*os
= NULL
;
4352 error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
);
4356 error
= dmu_object_next(os
, &zc
->zc_obj
, B_FALSE
,
4357 os
->os_dsl_dataset
->ds_phys
->ds_prev_snap_txg
);
4359 dmu_objset_rele(os
, FTAG
);
4365 * zc_name name of filesystem
4366 * zc_value prefix name for snapshot
4367 * zc_cleanup_fd cleanup-on-exit file descriptor for calling process
4372 zfs_ioc_tmp_snapshot(zfs_cmd_t
*zc
)
4377 snap_name
= kmem_asprintf("%s-%016llx", zc
->zc_value
,
4378 (u_longlong_t
)ddi_get_lbolt64());
4380 if (strlen(snap_name
) >= MAXNAMELEN
) {
4385 error
= dmu_objset_snapshot(zc
->zc_name
, snap_name
, snap_name
,
4386 NULL
, B_FALSE
, B_TRUE
, zc
->zc_cleanup_fd
);
4392 (void) strcpy(zc
->zc_value
, snap_name
);
4399 * zc_name name of "to" snapshot
4400 * zc_value name of "from" snapshot
4401 * zc_cookie file descriptor to write diff data on
4404 * dmu_diff_record_t's to the file descriptor
4407 zfs_ioc_diff(zfs_cmd_t
*zc
)
4415 error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &tosnap
);
4419 error
= dmu_objset_hold(zc
->zc_value
, FTAG
, &fromsnap
);
4421 dmu_objset_rele(tosnap
, FTAG
);
4425 fp
= getf(zc
->zc_cookie
);
4427 dmu_objset_rele(fromsnap
, FTAG
);
4428 dmu_objset_rele(tosnap
, FTAG
);
4434 error
= dmu_diff(tosnap
, fromsnap
, fp
->f_vnode
, &off
);
4436 if (VOP_SEEK(fp
->f_vnode
, fp
->f_offset
, &off
, NULL
) == 0)
4438 releasef(zc
->zc_cookie
);
4440 dmu_objset_rele(fromsnap
, FTAG
);
4441 dmu_objset_rele(tosnap
, FTAG
);
4446 * Remove all ACL files in shares dir
4450 zfs_smb_acl_purge(znode_t
*dzp
)
4453 zap_attribute_t zap
;
4454 zfsvfs_t
*zfsvfs
= dzp
->z_zfsvfs
;
4457 for (zap_cursor_init(&zc
, zfsvfs
->z_os
, dzp
->z_id
);
4458 (error
= zap_cursor_retrieve(&zc
, &zap
)) == 0;
4459 zap_cursor_advance(&zc
)) {
4460 if ((error
= VOP_REMOVE(ZTOV(dzp
), zap
.za_name
, kcred
,
4464 zap_cursor_fini(&zc
);
4467 #endif /* HAVE ZPL */
4470 zfs_ioc_smb_acl(zfs_cmd_t
*zc
)
4475 vnode_t
*resourcevp
= NULL
;
4484 if ((error
= lookupname(zc
->zc_value
, UIO_SYSSPACE
,
4485 NO_FOLLOW
, NULL
, &vp
)) != 0)
4488 /* Now make sure mntpnt and dataset are ZFS */
4490 if (vp
->v_vfsp
->vfs_fstype
!= zfsfstype
||
4491 (strcmp((char *)refstr_value(vp
->v_vfsp
->vfs_resource
),
4492 zc
->zc_name
) != 0)) {
4498 zfsvfs
= dzp
->z_zfsvfs
;
4502 * Create share dir if its missing.
4504 mutex_enter(&zfsvfs
->z_lock
);
4505 if (zfsvfs
->z_shares_dir
== 0) {
4508 tx
= dmu_tx_create(zfsvfs
->z_os
);
4509 dmu_tx_hold_zap(tx
, MASTER_NODE_OBJ
, TRUE
,
4511 dmu_tx_hold_zap(tx
, DMU_NEW_OBJECT
, FALSE
, NULL
);
4512 error
= dmu_tx_assign(tx
, TXG_WAIT
);
4516 error
= zfs_create_share_dir(zfsvfs
, tx
);
4520 mutex_exit(&zfsvfs
->z_lock
);
4526 mutex_exit(&zfsvfs
->z_lock
);
4528 ASSERT(zfsvfs
->z_shares_dir
);
4529 if ((error
= zfs_zget(zfsvfs
, zfsvfs
->z_shares_dir
, &sharedir
)) != 0) {
4535 switch (zc
->zc_cookie
) {
4536 case ZFS_SMB_ACL_ADD
:
4537 vattr
.va_mask
= AT_MODE
|AT_UID
|AT_GID
|AT_TYPE
;
4538 vattr
.va_type
= VREG
;
4539 vattr
.va_mode
= S_IFREG
|0777;
4543 vsec
.vsa_mask
= VSA_ACE
;
4544 vsec
.vsa_aclentp
= &full_access
;
4545 vsec
.vsa_aclentsz
= sizeof (full_access
);
4546 vsec
.vsa_aclcnt
= 1;
4548 error
= VOP_CREATE(ZTOV(sharedir
), zc
->zc_string
,
4549 &vattr
, EXCL
, 0, &resourcevp
, kcred
, 0, NULL
, &vsec
);
4551 VN_RELE(resourcevp
);
4554 case ZFS_SMB_ACL_REMOVE
:
4555 error
= VOP_REMOVE(ZTOV(sharedir
), zc
->zc_string
, kcred
,
4559 case ZFS_SMB_ACL_RENAME
:
4560 if ((error
= get_nvlist(zc
->zc_nvlist_src
,
4561 zc
->zc_nvlist_src_size
, zc
->zc_iflags
, &nvlist
)) != 0) {
4566 if (nvlist_lookup_string(nvlist
, ZFS_SMB_ACL_SRC
, &src
) ||
4567 nvlist_lookup_string(nvlist
, ZFS_SMB_ACL_TARGET
,
4570 VN_RELE(ZTOV(sharedir
));
4572 nvlist_free(nvlist
);
4575 error
= VOP_RENAME(ZTOV(sharedir
), src
, ZTOV(sharedir
), target
,
4577 nvlist_free(nvlist
);
4580 case ZFS_SMB_ACL_PURGE
:
4581 error
= zfs_smb_acl_purge(sharedir
);
4590 VN_RELE(ZTOV(sharedir
));
4597 #endif /* HAVE_ZPL */
4602 * zc_name name of filesystem
4603 * zc_value short name of snap
4604 * zc_string user-supplied tag for this hold
4605 * zc_cookie recursive flag
4606 * zc_temphold set if hold is temporary
4607 * zc_cleanup_fd cleanup-on-exit file descriptor for calling process
4608 * zc_sendobj if non-zero, the objid for zc_name@zc_value
4609 * zc_createtxg if zc_sendobj is non-zero, snap must have zc_createtxg
4614 zfs_ioc_hold(zfs_cmd_t
*zc
)
4616 boolean_t recursive
= zc
->zc_cookie
;
4623 if (snapshot_namecheck(zc
->zc_value
, NULL
, NULL
) != 0)
4626 if (zc
->zc_sendobj
== 0) {
4627 return (dsl_dataset_user_hold(zc
->zc_name
, zc
->zc_value
,
4628 zc
->zc_string
, recursive
, zc
->zc_temphold
,
4629 zc
->zc_cleanup_fd
));
4635 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
4639 dp
= spa_get_dsl(spa
);
4640 rw_enter(&dp
->dp_config_rwlock
, RW_READER
);
4641 error
= dsl_dataset_hold_obj(dp
, zc
->zc_sendobj
, FTAG
, &ds
);
4642 rw_exit(&dp
->dp_config_rwlock
);
4643 spa_close(spa
, FTAG
);
4648 * Until we have a hold on this snapshot, it's possible that
4649 * zc_sendobj could've been destroyed and reused as part
4650 * of a later txg. Make sure we're looking at the right object.
4652 if (zc
->zc_createtxg
!= ds
->ds_phys
->ds_creation_txg
) {
4653 dsl_dataset_rele(ds
, FTAG
);
4657 if (zc
->zc_cleanup_fd
!= -1 && zc
->zc_temphold
) {
4658 error
= zfs_onexit_fd_hold(zc
->zc_cleanup_fd
, &minor
);
4660 dsl_dataset_rele(ds
, FTAG
);
4665 error
= dsl_dataset_user_hold_for_send(ds
, zc
->zc_string
,
4669 dsl_register_onexit_hold_cleanup(ds
, zc
->zc_string
,
4672 zfs_onexit_fd_rele(zc
->zc_cleanup_fd
);
4674 dsl_dataset_rele(ds
, FTAG
);
4681 * zc_name name of dataset from which we're releasing a user hold
4682 * zc_value short name of snap
4683 * zc_string user-supplied tag for this hold
4684 * zc_cookie recursive flag
4689 zfs_ioc_release(zfs_cmd_t
*zc
)
4691 boolean_t recursive
= zc
->zc_cookie
;
4693 if (snapshot_namecheck(zc
->zc_value
, NULL
, NULL
) != 0)
4696 return (dsl_dataset_user_release(zc
->zc_name
, zc
->zc_value
,
4697 zc
->zc_string
, recursive
));
4702 * zc_name name of filesystem
4705 * zc_nvlist_src{_size} nvlist of snapshot holds
4708 zfs_ioc_get_holds(zfs_cmd_t
*zc
)
4713 if ((error
= dsl_dataset_get_holds(zc
->zc_name
, &nvp
)) == 0) {
4714 error
= put_nvlist(zc
, nvp
);
4723 * zc_guid flags (ZEVENT_NONBLOCK)
4726 * zc_nvlist_dst next nvlist event
4727 * zc_cookie dropped events since last get
4728 * zc_cleanup_fd cleanup-on-exit file descriptor
4731 zfs_ioc_events_next(zfs_cmd_t
*zc
)
4734 nvlist_t
*event
= NULL
;
4736 uint64_t dropped
= 0;
4739 error
= zfs_zevent_fd_hold(zc
->zc_cleanup_fd
, &minor
, &ze
);
4744 error
= zfs_zevent_next(ze
, &event
,
4745 &zc
->zc_nvlist_dst_size
, &dropped
);
4746 if (event
!= NULL
) {
4747 zc
->zc_cookie
= dropped
;
4748 error
= put_nvlist(zc
, event
);
4752 if (zc
->zc_guid
& ZEVENT_NONBLOCK
)
4755 if ((error
== 0) || (error
!= ENOENT
))
4758 error
= zfs_zevent_wait(ze
);
4763 zfs_zevent_fd_rele(zc
->zc_cleanup_fd
);
4770 * zc_cookie cleared events count
4773 zfs_ioc_events_clear(zfs_cmd_t
*zc
)
4777 zfs_zevent_drain_all(&count
);
4778 zc
->zc_cookie
= count
;
4784 * pool create, destroy, and export don't log the history as part of
4785 * zfsdev_ioctl, but rather zfs_ioc_pool_create, and zfs_ioc_pool_export
4786 * do the logging of those commands.
4788 static zfs_ioc_vec_t zfs_ioc_vec
[] = {
4789 { zfs_ioc_pool_create
, zfs_secpolicy_config
, POOL_NAME
, B_FALSE
,
4791 { zfs_ioc_pool_destroy
, zfs_secpolicy_config
, POOL_NAME
, B_FALSE
,
4793 { zfs_ioc_pool_import
, zfs_secpolicy_config
, POOL_NAME
, B_TRUE
,
4795 { zfs_ioc_pool_export
, zfs_secpolicy_config
, POOL_NAME
, B_FALSE
,
4797 { zfs_ioc_pool_configs
, zfs_secpolicy_none
, NO_NAME
, B_FALSE
,
4799 { zfs_ioc_pool_stats
, zfs_secpolicy_read
, POOL_NAME
, B_FALSE
,
4801 { zfs_ioc_pool_tryimport
, zfs_secpolicy_config
, NO_NAME
, B_FALSE
,
4803 { zfs_ioc_pool_scan
, zfs_secpolicy_config
, POOL_NAME
, B_TRUE
,
4804 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4805 { zfs_ioc_pool_freeze
, zfs_secpolicy_config
, NO_NAME
, B_FALSE
,
4806 POOL_CHECK_READONLY
},
4807 { zfs_ioc_pool_upgrade
, zfs_secpolicy_config
, POOL_NAME
, B_TRUE
,
4808 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4809 { zfs_ioc_pool_get_history
, zfs_secpolicy_config
, POOL_NAME
, B_FALSE
,
4811 { zfs_ioc_vdev_add
, zfs_secpolicy_config
, POOL_NAME
, B_TRUE
,
4812 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4813 { zfs_ioc_vdev_remove
, zfs_secpolicy_config
, POOL_NAME
, B_TRUE
,
4814 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4815 { zfs_ioc_vdev_set_state
, zfs_secpolicy_config
, POOL_NAME
, B_TRUE
,
4816 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4817 { zfs_ioc_vdev_attach
, zfs_secpolicy_config
, POOL_NAME
, B_TRUE
,
4818 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4819 { zfs_ioc_vdev_detach
, zfs_secpolicy_config
, POOL_NAME
, B_TRUE
,
4820 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4821 { zfs_ioc_vdev_setpath
, zfs_secpolicy_config
, POOL_NAME
, B_FALSE
,
4822 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4823 { zfs_ioc_vdev_setfru
, zfs_secpolicy_config
, POOL_NAME
, B_FALSE
,
4824 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4825 { zfs_ioc_objset_stats
, zfs_secpolicy_read
, DATASET_NAME
, B_FALSE
,
4826 POOL_CHECK_SUSPENDED
},
4827 { zfs_ioc_objset_zplprops
, zfs_secpolicy_read
, DATASET_NAME
, B_FALSE
,
4829 { zfs_ioc_dataset_list_next
, zfs_secpolicy_read
, DATASET_NAME
, B_FALSE
,
4830 POOL_CHECK_SUSPENDED
},
4831 { zfs_ioc_snapshot_list_next
, zfs_secpolicy_read
, DATASET_NAME
, B_FALSE
,
4832 POOL_CHECK_SUSPENDED
},
4833 { zfs_ioc_set_prop
, zfs_secpolicy_none
, DATASET_NAME
, B_TRUE
,
4834 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4835 { zfs_ioc_create_minor
, zfs_secpolicy_config
, DATASET_NAME
, B_FALSE
,
4837 { zfs_ioc_remove_minor
, zfs_secpolicy_config
, DATASET_NAME
, B_FALSE
,
4839 { zfs_ioc_create
, zfs_secpolicy_create
, DATASET_NAME
, B_TRUE
,
4840 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4841 { zfs_ioc_destroy
, zfs_secpolicy_destroy
, DATASET_NAME
, B_TRUE
,
4842 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4843 { zfs_ioc_rollback
, zfs_secpolicy_rollback
, DATASET_NAME
, B_TRUE
,
4844 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4845 { zfs_ioc_rename
, zfs_secpolicy_rename
, DATASET_NAME
, B_TRUE
,
4846 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4847 { zfs_ioc_recv
, zfs_secpolicy_receive
, DATASET_NAME
, B_TRUE
,
4848 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4849 { zfs_ioc_send
, zfs_secpolicy_send
, DATASET_NAME
, B_TRUE
,
4851 { zfs_ioc_inject_fault
, zfs_secpolicy_inject
, NO_NAME
, B_FALSE
,
4853 { zfs_ioc_clear_fault
, zfs_secpolicy_inject
, NO_NAME
, B_FALSE
,
4855 { zfs_ioc_inject_list_next
, zfs_secpolicy_inject
, NO_NAME
, B_FALSE
,
4857 { zfs_ioc_error_log
, zfs_secpolicy_inject
, POOL_NAME
, B_FALSE
,
4859 { zfs_ioc_clear
, zfs_secpolicy_config
, POOL_NAME
, B_TRUE
,
4861 { zfs_ioc_promote
, zfs_secpolicy_promote
, DATASET_NAME
, B_TRUE
,
4862 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4863 { zfs_ioc_destroy_snaps
, zfs_secpolicy_destroy_snaps
, DATASET_NAME
,
4864 B_TRUE
, POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4865 { zfs_ioc_snapshot
, zfs_secpolicy_snapshot
, DATASET_NAME
, B_TRUE
,
4866 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4867 { zfs_ioc_dsobj_to_dsname
, zfs_secpolicy_diff
, POOL_NAME
, B_FALSE
,
4869 { zfs_ioc_obj_to_path
, zfs_secpolicy_diff
, DATASET_NAME
, B_FALSE
,
4870 POOL_CHECK_SUSPENDED
},
4871 { zfs_ioc_pool_set_props
, zfs_secpolicy_config
, POOL_NAME
, B_TRUE
,
4872 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4873 { zfs_ioc_pool_get_props
, zfs_secpolicy_read
, POOL_NAME
, B_FALSE
,
4875 { zfs_ioc_set_fsacl
, zfs_secpolicy_fsacl
, DATASET_NAME
, B_TRUE
,
4876 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4877 { zfs_ioc_get_fsacl
, zfs_secpolicy_read
, DATASET_NAME
, B_FALSE
,
4879 { zfs_ioc_share
, zfs_secpolicy_share
, DATASET_NAME
, B_FALSE
,
4881 { zfs_ioc_inherit_prop
, zfs_secpolicy_inherit
, DATASET_NAME
, B_TRUE
,
4882 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4883 { zfs_ioc_smb_acl
, zfs_secpolicy_smb_acl
, DATASET_NAME
, B_FALSE
,
4885 { zfs_ioc_userspace_one
, zfs_secpolicy_userspace_one
, DATASET_NAME
,
4886 B_FALSE
, POOL_CHECK_NONE
},
4887 { zfs_ioc_userspace_many
, zfs_secpolicy_userspace_many
, DATASET_NAME
,
4888 B_FALSE
, POOL_CHECK_NONE
},
4889 { zfs_ioc_userspace_upgrade
, zfs_secpolicy_userspace_upgrade
,
4890 DATASET_NAME
, B_FALSE
, POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4891 { zfs_ioc_hold
, zfs_secpolicy_hold
, DATASET_NAME
, B_TRUE
,
4892 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4893 { zfs_ioc_release
, zfs_secpolicy_release
, DATASET_NAME
, B_TRUE
,
4894 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4895 { zfs_ioc_get_holds
, zfs_secpolicy_read
, DATASET_NAME
, B_FALSE
,
4896 POOL_CHECK_SUSPENDED
},
4897 { zfs_ioc_objset_recvd_props
, zfs_secpolicy_read
, DATASET_NAME
, B_FALSE
,
4899 { zfs_ioc_vdev_split
, zfs_secpolicy_config
, POOL_NAME
, B_TRUE
,
4900 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4901 { zfs_ioc_next_obj
, zfs_secpolicy_read
, DATASET_NAME
, B_FALSE
,
4903 { zfs_ioc_diff
, zfs_secpolicy_diff
, DATASET_NAME
, B_FALSE
,
4905 { zfs_ioc_tmp_snapshot
, zfs_secpolicy_tmp_snapshot
, DATASET_NAME
,
4906 B_FALSE
, POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4907 { zfs_ioc_obj_to_stats
, zfs_secpolicy_diff
, DATASET_NAME
, B_FALSE
,
4908 POOL_CHECK_SUSPENDED
},
4909 { zfs_ioc_events_next
, zfs_secpolicy_config
, NO_NAME
, B_FALSE
,
4911 { zfs_ioc_events_clear
, zfs_secpolicy_config
, NO_NAME
, B_FALSE
,
4916 pool_status_check(const char *name
, zfs_ioc_namecheck_t type
,
4917 zfs_ioc_poolcheck_t check
)
4922 ASSERT(type
== POOL_NAME
|| type
== DATASET_NAME
);
4924 if (check
& POOL_CHECK_NONE
)
4927 error
= spa_open(name
, &spa
, FTAG
);
4929 if ((check
& POOL_CHECK_SUSPENDED
) && spa_suspended(spa
))
4931 else if ((check
& POOL_CHECK_READONLY
) && !spa_writeable(spa
))
4933 spa_close(spa
, FTAG
);
4939 zfsdev_get_state_impl(minor_t minor
, enum zfsdev_state_type which
)
4943 ASSERT(MUTEX_HELD(&zfsdev_state_lock
));
4945 for (zs
= list_head(&zfsdev_state_list
); zs
!= NULL
;
4946 zs
= list_next(&zfsdev_state_list
, zs
)) {
4947 if (zs
->zs_minor
== minor
) {
4949 case ZST_ONEXIT
: return (zs
->zs_onexit
);
4950 case ZST_ZEVENT
: return (zs
->zs_zevent
);
4951 case ZST_ALL
: return (zs
);
4960 zfsdev_get_state(minor_t minor
, enum zfsdev_state_type which
)
4964 mutex_enter(&zfsdev_state_lock
);
4965 ptr
= zfsdev_get_state_impl(minor
, which
);
4966 mutex_exit(&zfsdev_state_lock
);
4972 zfsdev_getminor(struct file
*filp
)
4974 ASSERT(filp
!= NULL
);
4975 ASSERT(filp
->private_data
!= NULL
);
4977 return (((zfsdev_state_t
*)filp
->private_data
)->zs_minor
);
4981 * Find a free minor number. The zfsdev_state_list is expected to
4982 * be short since it is only a list of currently open file handles.
4985 zfsdev_minor_alloc(void)
4987 static minor_t last_minor
= 0;
4990 ASSERT(MUTEX_HELD(&zfsdev_state_lock
));
4992 for (m
= last_minor
+ 1; m
!= last_minor
; m
++) {
4993 if (m
> ZFSDEV_MAX_MINOR
)
4995 if (zfsdev_get_state_impl(m
, ZST_ALL
) == NULL
) {
5005 zfsdev_state_init(struct file
*filp
)
5010 ASSERT(MUTEX_HELD(&zfsdev_state_lock
));
5012 minor
= zfsdev_minor_alloc();
5016 zs
= kmem_zalloc( sizeof(zfsdev_state_t
), KM_SLEEP
);
5021 zs
->zs_minor
= minor
;
5022 filp
->private_data
= zs
;
5024 zfs_onexit_init((zfs_onexit_t
**)&zs
->zs_onexit
);
5025 zfs_zevent_init((zfs_zevent_t
**)&zs
->zs_zevent
);
5027 list_insert_tail(&zfsdev_state_list
, zs
);
5033 zfsdev_state_destroy(struct file
*filp
)
5037 ASSERT(MUTEX_HELD(&zfsdev_state_lock
));
5038 ASSERT(filp
->private_data
!= NULL
);
5040 zs
= filp
->private_data
;
5041 zfs_onexit_destroy(zs
->zs_onexit
);
5042 zfs_zevent_destroy(zs
->zs_zevent
);
5044 list_remove(&zfsdev_state_list
, zs
);
5045 kmem_free(zs
, sizeof(zfsdev_state_t
));
5051 zfsdev_open(struct inode
*ino
, struct file
*filp
)
5055 mutex_enter(&zfsdev_state_lock
);
5056 error
= zfsdev_state_init(filp
);
5057 mutex_exit(&zfsdev_state_lock
);
5063 zfsdev_release(struct inode
*ino
, struct file
*filp
)
5067 mutex_enter(&zfsdev_state_lock
);
5068 error
= zfsdev_state_destroy(filp
);
5069 mutex_exit(&zfsdev_state_lock
);
5075 zfsdev_ioctl(struct file
*filp
, unsigned cmd
, unsigned long arg
)
5079 int error
, rc
, flag
= 0;
5081 vec
= cmd
- ZFS_IOC
;
5082 if (vec
>= sizeof (zfs_ioc_vec
) / sizeof (zfs_ioc_vec
[0]))
5085 zc
= kmem_zalloc(sizeof (zfs_cmd_t
), KM_SLEEP
| KM_NODEBUG
);
5087 error
= ddi_copyin((void *)arg
, zc
, sizeof (zfs_cmd_t
), flag
);
5091 if ((error
== 0) && !(flag
& FKIOCTL
))
5092 error
= zfs_ioc_vec
[vec
].zvec_secpolicy(zc
, NULL
);
5095 * Ensure that all pool/dataset names are valid before we pass down to
5099 zc
->zc_name
[sizeof (zc
->zc_name
) - 1] = '\0';
5100 zc
->zc_iflags
= flag
& FKIOCTL
;
5101 switch (zfs_ioc_vec
[vec
].zvec_namecheck
) {
5103 if (pool_namecheck(zc
->zc_name
, NULL
, NULL
) != 0)
5105 error
= pool_status_check(zc
->zc_name
,
5106 zfs_ioc_vec
[vec
].zvec_namecheck
,
5107 zfs_ioc_vec
[vec
].zvec_pool_check
);
5111 if (dataset_namecheck(zc
->zc_name
, NULL
, NULL
) != 0)
5113 error
= pool_status_check(zc
->zc_name
,
5114 zfs_ioc_vec
[vec
].zvec_namecheck
,
5115 zfs_ioc_vec
[vec
].zvec_pool_check
);
5124 error
= zfs_ioc_vec
[vec
].zvec_func(zc
);
5126 rc
= ddi_copyout(zc
, (void *)arg
, sizeof (zfs_cmd_t
), flag
);
5130 if (zfs_ioc_vec
[vec
].zvec_his_log
)
5131 zfs_log_history(zc
);
5134 kmem_free(zc
, sizeof (zfs_cmd_t
));
5138 #ifdef CONFIG_COMPAT
5140 zfsdev_compat_ioctl(struct file
*filp
, unsigned cmd
, unsigned long arg
)
5142 return zfsdev_ioctl(filp
, cmd
, arg
);
5145 #define zfsdev_compat_ioctl NULL
5148 static const struct file_operations zfsdev_fops
= {
5149 .open
= zfsdev_open
,
5150 .release
= zfsdev_release
,
5151 .unlocked_ioctl
= zfsdev_ioctl
,
5152 .compat_ioctl
= zfsdev_compat_ioctl
,
5153 .owner
= THIS_MODULE
,
5156 static struct miscdevice zfs_misc
= {
5157 .minor
= MISC_DYNAMIC_MINOR
,
5159 .fops
= &zfsdev_fops
,
5167 mutex_init(&zfsdev_state_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
5168 list_create(&zfsdev_state_list
, sizeof (zfsdev_state_t
),
5169 offsetof(zfsdev_state_t
, zs_next
));
5171 error
= misc_register(&zfs_misc
);
5173 printk(KERN_INFO
"ZFS: misc_register() failed %d\n", error
);
5185 error
= misc_deregister(&zfs_misc
);
5187 printk(KERN_INFO
"ZFS: misc_deregister() failed %d\n", error
);
5189 mutex_destroy(&zfsdev_state_lock
);
5190 list_destroy(&zfsdev_state_list
);
5194 uint_t zfs_fsyncer_key
;
5195 extern uint_t rrw_tsd_key
;
5199 #define ZFS_DEBUG_STR " (DEBUG mode)"
5201 #define ZFS_DEBUG_STR ""
5209 spa_init(FREAD
| FWRITE
);
5212 if ((error
= zvol_init()) != 0)
5215 if ((error
= zfs_attach()) != 0)
5219 tsd_create(&zfs_fsyncer_key
, NULL
);
5220 tsd_create(&rrw_tsd_key
, NULL
);
5222 mutex_init(&zfs_share_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
5223 #endif /* HAVE_ZPL */
5225 printk(KERN_NOTICE
"ZFS: Loaded ZFS Filesystem v%s%s\n",
5226 ZFS_META_VERSION
, ZFS_DEBUG_STR
);
5235 printk(KERN_NOTICE
"ZFS: Failed to Load ZFS Filesystem v%s%s"
5236 ", rc = %d\n", ZFS_META_VERSION
, ZFS_DEBUG_STR
, error
);
5249 if (zfs_nfsshare_inited
)
5250 (void) ddi_modclose(nfs_mod
);
5251 if (zfs_smbshare_inited
)
5252 (void) ddi_modclose(smbsrv_mod
);
5253 if (zfs_nfsshare_inited
|| zfs_smbshare_inited
)
5254 (void) ddi_modclose(sharefs_mod
);
5256 mutex_destroy(&zfs_share_lock
);
5257 tsd_destroy(&zfs_fsyncer_key
);
5258 #endif /* HAVE_ZPL */
5260 printk(KERN_NOTICE
"ZFS: Unloaded ZFS Filesystem v%s%s\n",
5261 ZFS_META_VERSION
, ZFS_DEBUG_STR
);
5267 spl_module_init(_init
);
5268 spl_module_exit(_fini
);
5270 MODULE_DESCRIPTION("ZFS");
5271 MODULE_AUTHOR(ZFS_META_AUTHOR
);
5272 MODULE_LICENSE(ZFS_META_LICENSE
);
5273 #endif /* HAVE_SPL */