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_dir.h>
62 #include <sys/zfs_onexit.h>
64 #include <sys/dsl_scan.h>
65 #include <sharefs/share.h>
66 #include <sys/dmu_objset.h>
67 #include <sys/fm/util.h>
69 #include <linux/miscdevice.h>
71 #include "zfs_namecheck.h"
73 #include "zfs_deleg.h"
74 #include "zfs_comutil.h"
76 kmutex_t zfsdev_state_lock
;
77 list_t zfsdev_state_list
;
79 extern void zfs_init(void);
80 extern void zfs_fini(void);
82 typedef int zfs_ioc_func_t(zfs_cmd_t
*);
83 typedef int zfs_secpolicy_func_t(zfs_cmd_t
*, cred_t
*);
89 } zfs_ioc_namecheck_t
;
92 POOL_CHECK_NONE
= 1 << 0,
93 POOL_CHECK_SUSPENDED
= 1 << 1,
94 POOL_CHECK_READONLY
= 1 << 2
95 } zfs_ioc_poolcheck_t
;
97 typedef struct zfs_ioc_vec
{
98 zfs_ioc_func_t
*zvec_func
;
99 zfs_secpolicy_func_t
*zvec_secpolicy
;
100 zfs_ioc_namecheck_t zvec_namecheck
;
101 boolean_t zvec_his_log
;
102 zfs_ioc_poolcheck_t zvec_pool_check
;
105 /* This array is indexed by zfs_userquota_prop_t */
106 static const char *userquota_perms
[] = {
107 ZFS_DELEG_PERM_USERUSED
,
108 ZFS_DELEG_PERM_USERQUOTA
,
109 ZFS_DELEG_PERM_GROUPUSED
,
110 ZFS_DELEG_PERM_GROUPQUOTA
,
113 static int zfs_ioc_userspace_upgrade(zfs_cmd_t
*zc
);
114 static int zfs_check_settable(const char *name
, nvpair_t
*property
,
116 static int zfs_check_clearable(char *dataset
, nvlist_t
*props
,
118 static int zfs_fill_zplprops_root(uint64_t, nvlist_t
*, nvlist_t
*,
120 int zfs_set_prop_nvlist(const char *, zprop_source_t
, nvlist_t
*, nvlist_t
**);
122 /* _NOTE(PRINTFLIKE(4)) - this is printf-like, but lint is too whiney */
124 __dprintf(const char *file
, const char *func
, int line
, const char *fmt
, ...)
131 * Get rid of annoying "../common/" prefix to filename.
133 newfile
= strrchr(file
, '/');
134 if (newfile
!= NULL
) {
135 newfile
= newfile
+ 1; /* Get rid of leading / */
141 (void) vsnprintf(buf
, sizeof (buf
), fmt
, adx
);
145 * To get this data, use the zfs-dprintf probe as so:
146 * dtrace -q -n 'zfs-dprintf \
147 * /stringof(arg0) == "dbuf.c"/ \
148 * {printf("%s: %s", stringof(arg1), stringof(arg3))}'
150 * arg1 = function name
154 DTRACE_PROBE4(zfs__dprintf
,
155 char *, newfile
, char *, func
, int, line
, char *, buf
);
159 history_str_free(char *buf
)
161 kmem_free(buf
, HIS_MAX_RECORD_LEN
);
165 history_str_get(zfs_cmd_t
*zc
)
169 if (zc
->zc_history
== 0)
172 buf
= kmem_alloc(HIS_MAX_RECORD_LEN
, KM_SLEEP
| KM_NODEBUG
);
173 if (copyinstr((void *)(uintptr_t)zc
->zc_history
,
174 buf
, HIS_MAX_RECORD_LEN
, NULL
) != 0) {
175 history_str_free(buf
);
179 buf
[HIS_MAX_RECORD_LEN
-1] = '\0';
185 * Check to see if the named dataset is currently defined as bootable
188 zfs_is_bootfs(const char *name
)
192 if (dmu_objset_hold(name
, FTAG
, &os
) == 0) {
194 ret
= (dmu_objset_id(os
) == spa_bootfs(dmu_objset_spa(os
)));
195 dmu_objset_rele(os
, FTAG
);
202 * zfs_earlier_version
204 * Return non-zero if the spa version is less than requested version.
207 zfs_earlier_version(const char *name
, int version
)
211 if (spa_open(name
, &spa
, FTAG
) == 0) {
212 if (spa_version(spa
) < version
) {
213 spa_close(spa
, FTAG
);
216 spa_close(spa
, FTAG
);
222 * zpl_earlier_version
224 * Return TRUE if the ZPL version is less than requested version.
227 zpl_earlier_version(const char *name
, int version
)
230 boolean_t rc
= B_TRUE
;
232 if (dmu_objset_hold(name
, FTAG
, &os
) == 0) {
235 if (dmu_objset_type(os
) != DMU_OST_ZFS
) {
236 dmu_objset_rele(os
, FTAG
);
239 /* XXX reading from non-owned objset */
240 if (zfs_get_zplprop(os
, ZFS_PROP_VERSION
, &zplversion
) == 0)
241 rc
= zplversion
< version
;
242 dmu_objset_rele(os
, FTAG
);
248 zfs_log_history(zfs_cmd_t
*zc
)
253 if ((buf
= history_str_get(zc
)) == NULL
)
256 if (spa_open(zc
->zc_name
, &spa
, FTAG
) == 0) {
257 if (spa_version(spa
) >= SPA_VERSION_ZPOOL_HISTORY
)
258 (void) spa_history_log(spa
, buf
, LOG_CMD_NORMAL
);
259 spa_close(spa
, FTAG
);
261 history_str_free(buf
);
265 * Policy for top-level read operations (list pools). Requires no privileges,
266 * and can be used in the local zone, as there is no associated dataset.
270 zfs_secpolicy_none(zfs_cmd_t
*zc
, cred_t
*cr
)
276 * Policy for dataset read operations (list children, get statistics). Requires
277 * no privileges, but must be visible in the local zone.
281 zfs_secpolicy_read(zfs_cmd_t
*zc
, cred_t
*cr
)
283 if (INGLOBALZONE(curproc
) ||
284 zone_dataset_visible(zc
->zc_name
, NULL
))
291 zfs_dozonecheck_impl(const char *dataset
, uint64_t zoned
, cred_t
*cr
)
296 * The dataset must be visible by this zone -- check this first
297 * so they don't see EPERM on something they shouldn't know about.
299 if (!INGLOBALZONE(curproc
) &&
300 !zone_dataset_visible(dataset
, &writable
))
303 if (INGLOBALZONE(curproc
)) {
305 * If the fs is zoned, only root can access it from the
308 if (secpolicy_zfs(cr
) && zoned
)
312 * If we are in a local zone, the 'zoned' property must be set.
317 /* must be writable by this zone */
325 zfs_dozonecheck(const char *dataset
, cred_t
*cr
)
329 if (dsl_prop_get_integer(dataset
, "zoned", &zoned
, NULL
))
332 return (zfs_dozonecheck_impl(dataset
, zoned
, cr
));
336 zfs_dozonecheck_ds(const char *dataset
, dsl_dataset_t
*ds
, cred_t
*cr
)
340 rw_enter(&ds
->ds_dir
->dd_pool
->dp_config_rwlock
, RW_READER
);
341 if (dsl_prop_get_ds(ds
, "zoned", 8, 1, &zoned
, NULL
)) {
342 rw_exit(&ds
->ds_dir
->dd_pool
->dp_config_rwlock
);
345 rw_exit(&ds
->ds_dir
->dd_pool
->dp_config_rwlock
);
347 return (zfs_dozonecheck_impl(dataset
, zoned
, cr
));
351 zfs_secpolicy_write_perms(const char *name
, const char *perm
, cred_t
*cr
)
355 error
= zfs_dozonecheck(name
, cr
);
357 error
= secpolicy_zfs(cr
);
359 error
= dsl_deleg_access(name
, perm
, cr
);
365 zfs_secpolicy_write_perms_ds(const char *name
, dsl_dataset_t
*ds
,
366 const char *perm
, cred_t
*cr
)
370 error
= zfs_dozonecheck_ds(name
, ds
, cr
);
372 error
= secpolicy_zfs(cr
);
374 error
= dsl_deleg_access_impl(ds
, perm
, cr
);
380 * Policy for setting the security label property.
382 * Returns 0 for success, non-zero for access and other errors.
385 zfs_set_slabel_policy(const char *name
, char *strval
, cred_t
*cr
)
388 char ds_hexsl
[MAXNAMELEN
];
389 bslabel_t ds_sl
, new_sl
;
390 boolean_t new_default
= FALSE
;
392 int needed_priv
= -1;
395 /* First get the existing dataset label. */
396 error
= dsl_prop_get(name
, zfs_prop_to_name(ZFS_PROP_MLSLABEL
),
397 1, sizeof (ds_hexsl
), &ds_hexsl
, NULL
);
401 if (strcasecmp(strval
, ZFS_MLSLABEL_DEFAULT
) == 0)
404 /* The label must be translatable */
405 if (!new_default
&& (hexstr_to_label(strval
, &new_sl
) != 0))
409 * In a non-global zone, disallow attempts to set a label that
410 * doesn't match that of the zone; otherwise no other checks
413 if (!INGLOBALZONE(curproc
)) {
414 if (new_default
|| !blequal(&new_sl
, CR_SL(CRED())))
420 * For global-zone datasets (i.e., those whose zoned property is
421 * "off", verify that the specified new label is valid for the
424 if (dsl_prop_get_integer(name
,
425 zfs_prop_to_name(ZFS_PROP_ZONED
), &zoned
, NULL
))
428 if (zfs_check_global_label(name
, strval
) != 0)
433 * If the existing dataset label is nondefault, check if the
434 * dataset is mounted (label cannot be changed while mounted).
435 * Get the zfs_sb_t; if there isn't one, then the dataset isn't
436 * mounted (or isn't a dataset, doesn't exist, ...).
438 if (strcasecmp(ds_hexsl
, ZFS_MLSLABEL_DEFAULT
) != 0) {
440 static char *setsl_tag
= "setsl_tag";
443 * Try to own the dataset; abort if there is any error,
444 * (e.g., already mounted, in use, or other error).
446 error
= dmu_objset_own(name
, DMU_OST_ZFS
, B_TRUE
,
451 dmu_objset_disown(os
, setsl_tag
);
454 needed_priv
= PRIV_FILE_DOWNGRADE_SL
;
458 if (hexstr_to_label(strval
, &new_sl
) != 0)
461 if (blstrictdom(&ds_sl
, &new_sl
))
462 needed_priv
= PRIV_FILE_DOWNGRADE_SL
;
463 else if (blstrictdom(&new_sl
, &ds_sl
))
464 needed_priv
= PRIV_FILE_UPGRADE_SL
;
466 /* dataset currently has a default label */
468 needed_priv
= PRIV_FILE_UPGRADE_SL
;
472 if (needed_priv
!= -1)
473 return (PRIV_POLICY(cr
, needed_priv
, B_FALSE
, EPERM
, NULL
));
477 #endif /* HAVE_MLSLABEL */
481 zfs_secpolicy_setprop(const char *dsname
, zfs_prop_t prop
, nvpair_t
*propval
,
487 * Check permissions for special properties.
494 * Disallow setting of 'zoned' from within a local zone.
496 if (!INGLOBALZONE(curproc
))
501 if (!INGLOBALZONE(curproc
)) {
503 char setpoint
[MAXNAMELEN
];
505 * Unprivileged users are allowed to modify the
506 * quota on things *under* (ie. contained by)
507 * the thing they own.
509 if (dsl_prop_get_integer(dsname
, "zoned", &zoned
,
512 if (!zoned
|| strlen(dsname
) <= strlen(setpoint
))
517 case ZFS_PROP_MLSLABEL
:
518 if (!is_system_labeled())
521 if (nvpair_value_string(propval
, &strval
) == 0) {
524 err
= zfs_set_slabel_policy(dsname
, strval
, CRED());
531 return (zfs_secpolicy_write_perms(dsname
, zfs_prop_to_name(prop
), cr
));
535 zfs_secpolicy_fsacl(zfs_cmd_t
*zc
, cred_t
*cr
)
539 error
= zfs_dozonecheck(zc
->zc_name
, cr
);
544 * permission to set permissions will be evaluated later in
545 * dsl_deleg_can_allow()
551 zfs_secpolicy_rollback(zfs_cmd_t
*zc
, cred_t
*cr
)
553 return (zfs_secpolicy_write_perms(zc
->zc_name
,
554 ZFS_DELEG_PERM_ROLLBACK
, cr
));
558 zfs_secpolicy_send(zfs_cmd_t
*zc
, cred_t
*cr
)
567 * Generate the current snapshot name from the given objsetid, then
568 * use that name for the secpolicy/zone checks.
570 cp
= strchr(zc
->zc_name
, '@');
573 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
577 dp
= spa_get_dsl(spa
);
578 rw_enter(&dp
->dp_config_rwlock
, RW_READER
);
579 error
= dsl_dataset_hold_obj(dp
, zc
->zc_sendobj
, FTAG
, &ds
);
580 rw_exit(&dp
->dp_config_rwlock
);
581 spa_close(spa
, FTAG
);
585 dsl_dataset_name(ds
, zc
->zc_name
);
587 error
= zfs_secpolicy_write_perms_ds(zc
->zc_name
, ds
,
588 ZFS_DELEG_PERM_SEND
, cr
);
589 dsl_dataset_rele(ds
, FTAG
);
596 zfs_secpolicy_deleg_share(zfs_cmd_t
*zc
, cred_t
*cr
)
601 if ((error
= lookupname(zc
->zc_value
, UIO_SYSSPACE
,
602 NO_FOLLOW
, NULL
, &vp
)) != 0)
605 /* Now make sure mntpnt and dataset are ZFS */
607 if (vp
->v_vfsp
->vfs_fstype
!= zfsfstype
||
608 (strcmp((char *)refstr_value(vp
->v_vfsp
->vfs_resource
),
609 zc
->zc_name
) != 0)) {
615 return (dsl_deleg_access(zc
->zc_name
,
616 ZFS_DELEG_PERM_SHARE
, cr
));
618 #endif /* HAVE_SHARE */
621 zfs_secpolicy_share(zfs_cmd_t
*zc
, cred_t
*cr
)
624 if (!INGLOBALZONE(curproc
))
627 if (secpolicy_nfs(cr
) == 0) {
630 return (zfs_secpolicy_deleg_share(zc
, cr
));
634 #endif /* HAVE_SHARE */
638 zfs_secpolicy_smb_acl(zfs_cmd_t
*zc
, cred_t
*cr
)
641 if (!INGLOBALZONE(curproc
))
644 if (secpolicy_smb(cr
) == 0) {
647 return (zfs_secpolicy_deleg_share(zc
, cr
));
651 #endif /* HAVE_SHARE */
655 zfs_get_parent(const char *datasetname
, char *parent
, int parentsize
)
660 * Remove the @bla or /bla from the end of the name to get the parent.
662 (void) strncpy(parent
, datasetname
, parentsize
);
663 cp
= strrchr(parent
, '@');
667 cp
= strrchr(parent
, '/');
677 zfs_secpolicy_destroy_perms(const char *name
, cred_t
*cr
)
681 if ((error
= zfs_secpolicy_write_perms(name
,
682 ZFS_DELEG_PERM_MOUNT
, cr
)) != 0)
685 return (zfs_secpolicy_write_perms(name
, ZFS_DELEG_PERM_DESTROY
, cr
));
689 zfs_secpolicy_destroy(zfs_cmd_t
*zc
, cred_t
*cr
)
691 return (zfs_secpolicy_destroy_perms(zc
->zc_name
, cr
));
695 * Destroying snapshots with delegated permissions requires
696 * descendent mount and destroy permissions.
697 * Reassemble the full filesystem@snap name so dsl_deleg_access()
698 * can do the correct permission check.
700 * Since this routine is used when doing a recursive destroy of snapshots
701 * and destroying snapshots requires descendent permissions, a successfull
702 * check of the top level snapshot applies to snapshots of all descendent
706 zfs_secpolicy_destroy_snaps(zfs_cmd_t
*zc
, cred_t
*cr
)
711 dsname
= kmem_asprintf("%s@%s", zc
->zc_name
, zc
->zc_value
);
713 error
= zfs_secpolicy_destroy_perms(dsname
, cr
);
720 zfs_secpolicy_rename_perms(const char *from
, const char *to
, cred_t
*cr
)
722 char parentname
[MAXNAMELEN
];
725 if ((error
= zfs_secpolicy_write_perms(from
,
726 ZFS_DELEG_PERM_RENAME
, cr
)) != 0)
729 if ((error
= zfs_secpolicy_write_perms(from
,
730 ZFS_DELEG_PERM_MOUNT
, cr
)) != 0)
733 if ((error
= zfs_get_parent(to
, parentname
,
734 sizeof (parentname
))) != 0)
737 if ((error
= zfs_secpolicy_write_perms(parentname
,
738 ZFS_DELEG_PERM_CREATE
, cr
)) != 0)
741 if ((error
= zfs_secpolicy_write_perms(parentname
,
742 ZFS_DELEG_PERM_MOUNT
, cr
)) != 0)
749 zfs_secpolicy_rename(zfs_cmd_t
*zc
, cred_t
*cr
)
751 return (zfs_secpolicy_rename_perms(zc
->zc_name
, zc
->zc_value
, cr
));
755 zfs_secpolicy_promote(zfs_cmd_t
*zc
, cred_t
*cr
)
757 char parentname
[MAXNAMELEN
];
761 error
= zfs_secpolicy_write_perms(zc
->zc_name
,
762 ZFS_DELEG_PERM_PROMOTE
, cr
);
766 error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &clone
);
769 dsl_dataset_t
*pclone
= NULL
;
771 dd
= clone
->os_dsl_dataset
->ds_dir
;
773 rw_enter(&dd
->dd_pool
->dp_config_rwlock
, RW_READER
);
774 error
= dsl_dataset_hold_obj(dd
->dd_pool
,
775 dd
->dd_phys
->dd_origin_obj
, FTAG
, &pclone
);
776 rw_exit(&dd
->dd_pool
->dp_config_rwlock
);
778 dmu_objset_rele(clone
, FTAG
);
782 error
= zfs_secpolicy_write_perms(zc
->zc_name
,
783 ZFS_DELEG_PERM_MOUNT
, cr
);
785 dsl_dataset_name(pclone
, parentname
);
786 dmu_objset_rele(clone
, FTAG
);
787 dsl_dataset_rele(pclone
, FTAG
);
789 error
= zfs_secpolicy_write_perms(parentname
,
790 ZFS_DELEG_PERM_PROMOTE
, cr
);
796 zfs_secpolicy_receive(zfs_cmd_t
*zc
, cred_t
*cr
)
800 if ((error
= zfs_secpolicy_write_perms(zc
->zc_name
,
801 ZFS_DELEG_PERM_RECEIVE
, cr
)) != 0)
804 if ((error
= zfs_secpolicy_write_perms(zc
->zc_name
,
805 ZFS_DELEG_PERM_MOUNT
, cr
)) != 0)
808 return (zfs_secpolicy_write_perms(zc
->zc_name
,
809 ZFS_DELEG_PERM_CREATE
, cr
));
813 zfs_secpolicy_snapshot_perms(const char *name
, cred_t
*cr
)
815 return (zfs_secpolicy_write_perms(name
,
816 ZFS_DELEG_PERM_SNAPSHOT
, cr
));
820 zfs_secpolicy_snapshot(zfs_cmd_t
*zc
, cred_t
*cr
)
823 return (zfs_secpolicy_snapshot_perms(zc
->zc_name
, cr
));
827 zfs_secpolicy_create(zfs_cmd_t
*zc
, cred_t
*cr
)
829 char parentname
[MAXNAMELEN
];
832 if ((error
= zfs_get_parent(zc
->zc_name
, parentname
,
833 sizeof (parentname
))) != 0)
836 if (zc
->zc_value
[0] != '\0') {
837 if ((error
= zfs_secpolicy_write_perms(zc
->zc_value
,
838 ZFS_DELEG_PERM_CLONE
, cr
)) != 0)
842 if ((error
= zfs_secpolicy_write_perms(parentname
,
843 ZFS_DELEG_PERM_CREATE
, cr
)) != 0)
846 error
= zfs_secpolicy_write_perms(parentname
,
847 ZFS_DELEG_PERM_MOUNT
, cr
);
853 * Policy for pool operations - create/destroy pools, add vdevs, etc. Requires
854 * SYS_CONFIG privilege, which is not available in a local zone.
858 zfs_secpolicy_config(zfs_cmd_t
*zc
, cred_t
*cr
)
860 if (secpolicy_sys_config(cr
, B_FALSE
) != 0)
867 * Policy for object to name lookups.
871 zfs_secpolicy_diff(zfs_cmd_t
*zc
, cred_t
*cr
)
875 if ((error
= secpolicy_sys_config(cr
, B_FALSE
)) == 0)
878 error
= zfs_secpolicy_write_perms(zc
->zc_name
, ZFS_DELEG_PERM_DIFF
, cr
);
883 * Policy for fault injection. Requires all privileges.
887 zfs_secpolicy_inject(zfs_cmd_t
*zc
, cred_t
*cr
)
889 return (secpolicy_zinject(cr
));
893 zfs_secpolicy_inherit(zfs_cmd_t
*zc
, cred_t
*cr
)
895 zfs_prop_t prop
= zfs_name_to_prop(zc
->zc_value
);
897 if (prop
== ZPROP_INVAL
) {
898 if (!zfs_prop_user(zc
->zc_value
))
900 return (zfs_secpolicy_write_perms(zc
->zc_name
,
901 ZFS_DELEG_PERM_USERPROP
, cr
));
903 return (zfs_secpolicy_setprop(zc
->zc_name
, prop
,
909 zfs_secpolicy_userspace_one(zfs_cmd_t
*zc
, cred_t
*cr
)
911 int err
= zfs_secpolicy_read(zc
, cr
);
915 if (zc
->zc_objset_type
>= ZFS_NUM_USERQUOTA_PROPS
)
918 if (zc
->zc_value
[0] == 0) {
920 * They are asking about a posix uid/gid. If it's
921 * themself, allow it.
923 if (zc
->zc_objset_type
== ZFS_PROP_USERUSED
||
924 zc
->zc_objset_type
== ZFS_PROP_USERQUOTA
) {
925 if (zc
->zc_guid
== crgetuid(cr
))
928 if (groupmember(zc
->zc_guid
, cr
))
933 return (zfs_secpolicy_write_perms(zc
->zc_name
,
934 userquota_perms
[zc
->zc_objset_type
], cr
));
938 zfs_secpolicy_userspace_many(zfs_cmd_t
*zc
, cred_t
*cr
)
940 int err
= zfs_secpolicy_read(zc
, cr
);
944 if (zc
->zc_objset_type
>= ZFS_NUM_USERQUOTA_PROPS
)
947 return (zfs_secpolicy_write_perms(zc
->zc_name
,
948 userquota_perms
[zc
->zc_objset_type
], cr
));
952 zfs_secpolicy_userspace_upgrade(zfs_cmd_t
*zc
, cred_t
*cr
)
954 return (zfs_secpolicy_setprop(zc
->zc_name
, ZFS_PROP_VERSION
,
959 zfs_secpolicy_hold(zfs_cmd_t
*zc
, cred_t
*cr
)
961 return (zfs_secpolicy_write_perms(zc
->zc_name
,
962 ZFS_DELEG_PERM_HOLD
, cr
));
966 zfs_secpolicy_release(zfs_cmd_t
*zc
, cred_t
*cr
)
968 return (zfs_secpolicy_write_perms(zc
->zc_name
,
969 ZFS_DELEG_PERM_RELEASE
, cr
));
973 * Policy for allowing temporary snapshots to be taken or released
976 zfs_secpolicy_tmp_snapshot(zfs_cmd_t
*zc
, cred_t
*cr
)
979 * A temporary snapshot is the same as a snapshot,
980 * hold, destroy and release all rolled into one.
981 * Delegated diff alone is sufficient that we allow this.
985 if ((error
= zfs_secpolicy_write_perms(zc
->zc_name
,
986 ZFS_DELEG_PERM_DIFF
, cr
)) == 0)
989 error
= zfs_secpolicy_snapshot(zc
, cr
);
991 error
= zfs_secpolicy_hold(zc
, cr
);
993 error
= zfs_secpolicy_release(zc
, cr
);
995 error
= zfs_secpolicy_destroy(zc
, cr
);
1000 * Returns the nvlist as specified by the user in the zfs_cmd_t.
1003 get_nvlist(uint64_t nvl
, uint64_t size
, int iflag
, nvlist_t
**nvp
)
1007 nvlist_t
*list
= NULL
;
1010 * Read in and unpack the user-supplied nvlist.
1015 packed
= kmem_alloc(size
, KM_SLEEP
| KM_NODEBUG
);
1017 if ((error
= ddi_copyin((void *)(uintptr_t)nvl
, packed
, size
,
1019 kmem_free(packed
, size
);
1023 if ((error
= nvlist_unpack(packed
, size
, &list
, 0)) != 0) {
1024 kmem_free(packed
, size
);
1028 kmem_free(packed
, size
);
1035 fit_error_list(zfs_cmd_t
*zc
, nvlist_t
**errors
)
1039 VERIFY(nvlist_size(*errors
, &size
, NV_ENCODE_NATIVE
) == 0);
1041 if (size
> zc
->zc_nvlist_dst_size
) {
1042 nvpair_t
*more_errors
;
1045 if (zc
->zc_nvlist_dst_size
< 1024)
1048 VERIFY(nvlist_add_int32(*errors
, ZPROP_N_MORE_ERRORS
, 0) == 0);
1049 more_errors
= nvlist_prev_nvpair(*errors
, NULL
);
1052 nvpair_t
*pair
= nvlist_prev_nvpair(*errors
,
1054 VERIFY(nvlist_remove_nvpair(*errors
, pair
) == 0);
1056 VERIFY(nvlist_size(*errors
, &size
,
1057 NV_ENCODE_NATIVE
) == 0);
1058 } while (size
> zc
->zc_nvlist_dst_size
);
1060 VERIFY(nvlist_remove_nvpair(*errors
, more_errors
) == 0);
1061 VERIFY(nvlist_add_int32(*errors
, ZPROP_N_MORE_ERRORS
, n
) == 0);
1062 ASSERT(nvlist_size(*errors
, &size
, NV_ENCODE_NATIVE
) == 0);
1063 ASSERT(size
<= zc
->zc_nvlist_dst_size
);
1070 put_nvlist(zfs_cmd_t
*zc
, nvlist_t
*nvl
)
1072 char *packed
= NULL
;
1076 VERIFY(nvlist_size(nvl
, &size
, NV_ENCODE_NATIVE
) == 0);
1078 if (size
> zc
->zc_nvlist_dst_size
) {
1081 packed
= kmem_alloc(size
, KM_SLEEP
| KM_NODEBUG
);
1082 VERIFY(nvlist_pack(nvl
, &packed
, &size
, NV_ENCODE_NATIVE
,
1084 if (ddi_copyout(packed
, (void *)(uintptr_t)zc
->zc_nvlist_dst
,
1085 size
, zc
->zc_iflags
) != 0)
1087 kmem_free(packed
, size
);
1090 zc
->zc_nvlist_dst_size
= size
;
1095 get_zfs_sb(const char *dsname
, zfs_sb_t
**zsbp
)
1100 error
= dmu_objset_hold(dsname
, FTAG
, &os
);
1103 if (dmu_objset_type(os
) != DMU_OST_ZFS
) {
1104 dmu_objset_rele(os
, FTAG
);
1108 mutex_enter(&os
->os_user_ptr_lock
);
1109 *zsbp
= dmu_objset_get_user(os
);
1111 mntget((*zsbp
)->z_vfs
);
1115 mutex_exit(&os
->os_user_ptr_lock
);
1116 dmu_objset_rele(os
, FTAG
);
1121 * Find a zfs_sb_t for a mounted filesystem, or create our own, in which
1122 * case its z_vfs will be NULL, and it will be opened as the owner.
1125 zfs_sb_hold(const char *name
, void *tag
, zfs_sb_t
**zsbp
, boolean_t writer
)
1129 if (get_zfs_sb(name
, zsbp
) != 0)
1130 error
= zfs_sb_create(name
, zsbp
);
1132 rrw_enter(&(*zsbp
)->z_teardown_lock
, (writer
) ? RW_WRITER
:
1134 if ((*zsbp
)->z_unmounted
) {
1136 * XXX we could probably try again, since the unmounting
1137 * thread should be just about to disassociate the
1138 * objset from the zfsvfs.
1140 rrw_exit(&(*zsbp
)->z_teardown_lock
, tag
);
1148 zfs_sb_rele(zfs_sb_t
*zsb
, void *tag
)
1150 rrw_exit(&zsb
->z_teardown_lock
, tag
);
1155 dmu_objset_disown(zsb
->z_os
, zsb
);
1161 zfs_ioc_pool_create(zfs_cmd_t
*zc
)
1164 nvlist_t
*config
, *props
= NULL
;
1165 nvlist_t
*rootprops
= NULL
;
1166 nvlist_t
*zplprops
= NULL
;
1169 if ((error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1170 zc
->zc_iflags
, &config
)))
1173 if (zc
->zc_nvlist_src_size
!= 0 && (error
=
1174 get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
1175 zc
->zc_iflags
, &props
))) {
1176 nvlist_free(config
);
1181 nvlist_t
*nvl
= NULL
;
1182 uint64_t version
= SPA_VERSION
;
1184 (void) nvlist_lookup_uint64(props
,
1185 zpool_prop_to_name(ZPOOL_PROP_VERSION
), &version
);
1186 if (version
< SPA_VERSION_INITIAL
|| version
> SPA_VERSION
) {
1188 goto pool_props_bad
;
1190 (void) nvlist_lookup_nvlist(props
, ZPOOL_ROOTFS_PROPS
, &nvl
);
1192 error
= nvlist_dup(nvl
, &rootprops
, KM_SLEEP
);
1194 nvlist_free(config
);
1198 (void) nvlist_remove_all(props
, ZPOOL_ROOTFS_PROPS
);
1200 VERIFY(nvlist_alloc(&zplprops
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
1201 error
= zfs_fill_zplprops_root(version
, rootprops
,
1204 goto pool_props_bad
;
1207 buf
= history_str_get(zc
);
1209 error
= spa_create(zc
->zc_name
, config
, props
, buf
, zplprops
);
1212 * Set the remaining root properties
1214 if (!error
&& (error
= zfs_set_prop_nvlist(zc
->zc_name
,
1215 ZPROP_SRC_LOCAL
, rootprops
, NULL
)) != 0)
1216 (void) spa_destroy(zc
->zc_name
);
1219 history_str_free(buf
);
1222 nvlist_free(rootprops
);
1223 nvlist_free(zplprops
);
1224 nvlist_free(config
);
1231 zfs_ioc_pool_destroy(zfs_cmd_t
*zc
)
1234 zfs_log_history(zc
);
1235 error
= spa_destroy(zc
->zc_name
);
1237 zvol_remove_minors(zc
->zc_name
);
1242 zfs_ioc_pool_import(zfs_cmd_t
*zc
)
1244 nvlist_t
*config
, *props
= NULL
;
1248 if ((error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1249 zc
->zc_iflags
, &config
)) != 0)
1252 if (zc
->zc_nvlist_src_size
!= 0 && (error
=
1253 get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
1254 zc
->zc_iflags
, &props
))) {
1255 nvlist_free(config
);
1259 if (nvlist_lookup_uint64(config
, ZPOOL_CONFIG_POOL_GUID
, &guid
) != 0 ||
1260 guid
!= zc
->zc_guid
)
1263 error
= spa_import(zc
->zc_name
, config
, props
, zc
->zc_cookie
);
1265 if (zc
->zc_nvlist_dst
!= 0) {
1268 if ((err
= put_nvlist(zc
, config
)) != 0)
1273 zvol_create_minors(zc
->zc_name
);
1275 nvlist_free(config
);
1284 zfs_ioc_pool_export(zfs_cmd_t
*zc
)
1287 boolean_t force
= (boolean_t
)zc
->zc_cookie
;
1288 boolean_t hardforce
= (boolean_t
)zc
->zc_guid
;
1290 zfs_log_history(zc
);
1291 error
= spa_export(zc
->zc_name
, NULL
, force
, hardforce
);
1293 zvol_remove_minors(zc
->zc_name
);
1298 zfs_ioc_pool_configs(zfs_cmd_t
*zc
)
1303 if ((configs
= spa_all_configs(&zc
->zc_cookie
)) == NULL
)
1306 error
= put_nvlist(zc
, configs
);
1308 nvlist_free(configs
);
1314 zfs_ioc_pool_stats(zfs_cmd_t
*zc
)
1320 error
= spa_get_stats(zc
->zc_name
, &config
, zc
->zc_value
,
1321 sizeof (zc
->zc_value
));
1323 if (config
!= NULL
) {
1324 ret
= put_nvlist(zc
, config
);
1325 nvlist_free(config
);
1328 * The config may be present even if 'error' is non-zero.
1329 * In this case we return success, and preserve the real errno
1332 zc
->zc_cookie
= error
;
1341 * Try to import the given pool, returning pool stats as appropriate so that
1342 * user land knows which devices are available and overall pool health.
1345 zfs_ioc_pool_tryimport(zfs_cmd_t
*zc
)
1347 nvlist_t
*tryconfig
, *config
;
1350 if ((error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1351 zc
->zc_iflags
, &tryconfig
)) != 0)
1354 config
= spa_tryimport(tryconfig
);
1356 nvlist_free(tryconfig
);
1361 error
= put_nvlist(zc
, config
);
1362 nvlist_free(config
);
1369 * zc_name name of the pool
1370 * zc_cookie scan func (pool_scan_func_t)
1373 zfs_ioc_pool_scan(zfs_cmd_t
*zc
)
1378 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1381 if (zc
->zc_cookie
== POOL_SCAN_NONE
)
1382 error
= spa_scan_stop(spa
);
1384 error
= spa_scan(spa
, zc
->zc_cookie
);
1386 spa_close(spa
, FTAG
);
1392 zfs_ioc_pool_freeze(zfs_cmd_t
*zc
)
1397 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
1400 spa_close(spa
, FTAG
);
1406 zfs_ioc_pool_upgrade(zfs_cmd_t
*zc
)
1411 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1414 if (zc
->zc_cookie
< spa_version(spa
) || zc
->zc_cookie
> SPA_VERSION
) {
1415 spa_close(spa
, FTAG
);
1419 spa_upgrade(spa
, zc
->zc_cookie
);
1420 spa_close(spa
, FTAG
);
1426 zfs_ioc_pool_get_history(zfs_cmd_t
*zc
)
1433 if ((size
= zc
->zc_history_len
) == 0)
1436 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1439 if (spa_version(spa
) < SPA_VERSION_ZPOOL_HISTORY
) {
1440 spa_close(spa
, FTAG
);
1444 hist_buf
= kmem_alloc(size
, KM_SLEEP
);
1445 if ((error
= spa_history_get(spa
, &zc
->zc_history_offset
,
1446 &zc
->zc_history_len
, hist_buf
)) == 0) {
1447 error
= ddi_copyout(hist_buf
,
1448 (void *)(uintptr_t)zc
->zc_history
,
1449 zc
->zc_history_len
, zc
->zc_iflags
);
1452 spa_close(spa
, FTAG
);
1453 kmem_free(hist_buf
, size
);
1458 zfs_ioc_dsobj_to_dsname(zfs_cmd_t
*zc
)
1462 if ((error
= dsl_dsobj_to_dsname(zc
->zc_name
,zc
->zc_obj
,zc
->zc_value
)))
1470 * zc_name name of filesystem
1471 * zc_obj object to find
1474 * zc_value name of object
1477 zfs_ioc_obj_to_path(zfs_cmd_t
*zc
)
1482 /* XXX reading from objset not owned */
1483 if ((error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
)) != 0)
1485 if (dmu_objset_type(os
) != DMU_OST_ZFS
) {
1486 dmu_objset_rele(os
, FTAG
);
1489 error
= zfs_obj_to_path(os
, zc
->zc_obj
, zc
->zc_value
,
1490 sizeof (zc
->zc_value
));
1491 dmu_objset_rele(os
, FTAG
);
1498 * zc_name name of filesystem
1499 * zc_obj object to find
1502 * zc_stat stats on object
1503 * zc_value path to object
1506 zfs_ioc_obj_to_stats(zfs_cmd_t
*zc
)
1511 /* XXX reading from objset not owned */
1512 if ((error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
)) != 0)
1514 if (dmu_objset_type(os
) != DMU_OST_ZFS
) {
1515 dmu_objset_rele(os
, FTAG
);
1518 error
= zfs_obj_to_stats(os
, zc
->zc_obj
, &zc
->zc_stat
, zc
->zc_value
,
1519 sizeof (zc
->zc_value
));
1520 dmu_objset_rele(os
, FTAG
);
1526 zfs_ioc_vdev_add(zfs_cmd_t
*zc
)
1530 nvlist_t
*config
, **l2cache
, **spares
;
1531 uint_t nl2cache
= 0, nspares
= 0;
1533 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
1537 error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1538 zc
->zc_iflags
, &config
);
1539 (void) nvlist_lookup_nvlist_array(config
, ZPOOL_CONFIG_L2CACHE
,
1540 &l2cache
, &nl2cache
);
1542 (void) nvlist_lookup_nvlist_array(config
, ZPOOL_CONFIG_SPARES
,
1546 * A root pool with concatenated devices is not supported.
1547 * Thus, can not add a device to a root pool.
1549 * Intent log device can not be added to a rootpool because
1550 * during mountroot, zil is replayed, a seperated log device
1551 * can not be accessed during the mountroot time.
1553 * l2cache and spare devices are ok to be added to a rootpool.
1555 if (spa_bootfs(spa
) != 0 && nl2cache
== 0 && nspares
== 0) {
1556 nvlist_free(config
);
1557 spa_close(spa
, FTAG
);
1562 error
= spa_vdev_add(spa
, config
);
1563 nvlist_free(config
);
1565 spa_close(spa
, FTAG
);
1571 * zc_name name of the pool
1572 * zc_nvlist_conf nvlist of devices to remove
1573 * zc_cookie to stop the remove?
1576 zfs_ioc_vdev_remove(zfs_cmd_t
*zc
)
1581 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
1584 error
= spa_vdev_remove(spa
, zc
->zc_guid
, B_FALSE
);
1585 spa_close(spa
, FTAG
);
1590 zfs_ioc_vdev_set_state(zfs_cmd_t
*zc
)
1594 vdev_state_t newstate
= VDEV_STATE_UNKNOWN
;
1596 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1598 switch (zc
->zc_cookie
) {
1599 case VDEV_STATE_ONLINE
:
1600 error
= vdev_online(spa
, zc
->zc_guid
, zc
->zc_obj
, &newstate
);
1603 case VDEV_STATE_OFFLINE
:
1604 error
= vdev_offline(spa
, zc
->zc_guid
, zc
->zc_obj
);
1607 case VDEV_STATE_FAULTED
:
1608 if (zc
->zc_obj
!= VDEV_AUX_ERR_EXCEEDED
&&
1609 zc
->zc_obj
!= VDEV_AUX_EXTERNAL
)
1610 zc
->zc_obj
= VDEV_AUX_ERR_EXCEEDED
;
1612 error
= vdev_fault(spa
, zc
->zc_guid
, zc
->zc_obj
);
1615 case VDEV_STATE_DEGRADED
:
1616 if (zc
->zc_obj
!= VDEV_AUX_ERR_EXCEEDED
&&
1617 zc
->zc_obj
!= VDEV_AUX_EXTERNAL
)
1618 zc
->zc_obj
= VDEV_AUX_ERR_EXCEEDED
;
1620 error
= vdev_degrade(spa
, zc
->zc_guid
, zc
->zc_obj
);
1626 zc
->zc_cookie
= newstate
;
1627 spa_close(spa
, FTAG
);
1632 zfs_ioc_vdev_attach(zfs_cmd_t
*zc
)
1635 int replacing
= zc
->zc_cookie
;
1639 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1642 if ((error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1643 zc
->zc_iflags
, &config
)) == 0) {
1644 error
= spa_vdev_attach(spa
, zc
->zc_guid
, config
, replacing
);
1645 nvlist_free(config
);
1648 spa_close(spa
, FTAG
);
1653 zfs_ioc_vdev_detach(zfs_cmd_t
*zc
)
1658 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1661 error
= spa_vdev_detach(spa
, zc
->zc_guid
, 0, B_FALSE
);
1663 spa_close(spa
, FTAG
);
1668 zfs_ioc_vdev_split(zfs_cmd_t
*zc
)
1671 nvlist_t
*config
, *props
= NULL
;
1673 boolean_t exp
= !!(zc
->zc_cookie
& ZPOOL_EXPORT_AFTER_SPLIT
);
1675 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1678 if ((error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1679 zc
->zc_iflags
, &config
))) {
1680 spa_close(spa
, FTAG
);
1684 if (zc
->zc_nvlist_src_size
!= 0 && (error
=
1685 get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
1686 zc
->zc_iflags
, &props
))) {
1687 spa_close(spa
, FTAG
);
1688 nvlist_free(config
);
1692 error
= spa_vdev_split_mirror(spa
, zc
->zc_string
, config
, props
, exp
);
1694 spa_close(spa
, FTAG
);
1696 nvlist_free(config
);
1703 zfs_ioc_vdev_setpath(zfs_cmd_t
*zc
)
1706 char *path
= zc
->zc_value
;
1707 uint64_t guid
= zc
->zc_guid
;
1710 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
1714 error
= spa_vdev_setpath(spa
, guid
, path
);
1715 spa_close(spa
, FTAG
);
1720 zfs_ioc_vdev_setfru(zfs_cmd_t
*zc
)
1723 char *fru
= zc
->zc_value
;
1724 uint64_t guid
= zc
->zc_guid
;
1727 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
1731 error
= spa_vdev_setfru(spa
, guid
, fru
);
1732 spa_close(spa
, FTAG
);
1737 zfs_ioc_objset_stats_impl(zfs_cmd_t
*zc
, objset_t
*os
)
1742 dmu_objset_fast_stat(os
, &zc
->zc_objset_stats
);
1744 if (zc
->zc_nvlist_dst
!= 0 &&
1745 (error
= dsl_prop_get_all(os
, &nv
)) == 0) {
1746 dmu_objset_stats(os
, nv
);
1748 * NB: zvol_get_stats() will read the objset contents,
1749 * which we aren't supposed to do with a
1750 * DS_MODE_USER hold, because it could be
1751 * inconsistent. So this is a bit of a workaround...
1752 * XXX reading with out owning
1754 if (!zc
->zc_objset_stats
.dds_inconsistent
) {
1755 if (dmu_objset_type(os
) == DMU_OST_ZVOL
)
1756 error
= zvol_get_stats(os
, nv
);
1759 error
= put_nvlist(zc
, nv
);
1768 * zc_name name of filesystem
1769 * zc_nvlist_dst_size size of buffer for property nvlist
1772 * zc_objset_stats stats
1773 * zc_nvlist_dst property nvlist
1774 * zc_nvlist_dst_size size of property nvlist
1777 zfs_ioc_objset_stats(zfs_cmd_t
*zc
)
1779 objset_t
*os
= NULL
;
1782 if ((error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
)))
1785 error
= zfs_ioc_objset_stats_impl(zc
, os
);
1787 dmu_objset_rele(os
, FTAG
);
1794 * zc_name name of filesystem
1795 * zc_nvlist_dst_size size of buffer for property nvlist
1798 * zc_nvlist_dst received property nvlist
1799 * zc_nvlist_dst_size size of received property nvlist
1801 * Gets received properties (distinct from local properties on or after
1802 * SPA_VERSION_RECVD_PROPS) for callers who want to differentiate received from
1803 * local property values.
1806 zfs_ioc_objset_recvd_props(zfs_cmd_t
*zc
)
1808 objset_t
*os
= NULL
;
1812 if ((error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
)))
1816 * Without this check, we would return local property values if the
1817 * caller has not already received properties on or after
1818 * SPA_VERSION_RECVD_PROPS.
1820 if (!dsl_prop_get_hasrecvd(os
)) {
1821 dmu_objset_rele(os
, FTAG
);
1825 if (zc
->zc_nvlist_dst
!= 0 &&
1826 (error
= dsl_prop_get_received(os
, &nv
)) == 0) {
1827 error
= put_nvlist(zc
, nv
);
1831 dmu_objset_rele(os
, FTAG
);
1836 nvl_add_zplprop(objset_t
*os
, nvlist_t
*props
, zfs_prop_t prop
)
1842 * zfs_get_zplprop() will either find a value or give us
1843 * the default value (if there is one).
1845 if ((error
= zfs_get_zplprop(os
, prop
, &value
)) != 0)
1847 VERIFY(nvlist_add_uint64(props
, zfs_prop_to_name(prop
), value
) == 0);
1853 * zc_name name of filesystem
1854 * zc_nvlist_dst_size size of buffer for zpl property nvlist
1857 * zc_nvlist_dst zpl property nvlist
1858 * zc_nvlist_dst_size size of zpl property nvlist
1861 zfs_ioc_objset_zplprops(zfs_cmd_t
*zc
)
1866 /* XXX reading without owning */
1867 if ((err
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
)))
1870 dmu_objset_fast_stat(os
, &zc
->zc_objset_stats
);
1873 * NB: nvl_add_zplprop() will read the objset contents,
1874 * which we aren't supposed to do with a DS_MODE_USER
1875 * hold, because it could be inconsistent.
1877 if (zc
->zc_nvlist_dst
!= 0 &&
1878 !zc
->zc_objset_stats
.dds_inconsistent
&&
1879 dmu_objset_type(os
) == DMU_OST_ZFS
) {
1882 VERIFY(nvlist_alloc(&nv
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
1883 if ((err
= nvl_add_zplprop(os
, nv
, ZFS_PROP_VERSION
)) == 0 &&
1884 (err
= nvl_add_zplprop(os
, nv
, ZFS_PROP_NORMALIZE
)) == 0 &&
1885 (err
= nvl_add_zplprop(os
, nv
, ZFS_PROP_UTF8ONLY
)) == 0 &&
1886 (err
= nvl_add_zplprop(os
, nv
, ZFS_PROP_CASE
)) == 0)
1887 err
= put_nvlist(zc
, nv
);
1892 dmu_objset_rele(os
, FTAG
);
1897 dataset_name_hidden(const char *name
)
1900 * Skip over datasets that are not visible in this zone,
1901 * internal datasets (which have a $ in their name), and
1902 * temporary datasets (which have a % in their name).
1904 if (strchr(name
, '$') != NULL
)
1906 if (strchr(name
, '%') != NULL
)
1908 if (!INGLOBALZONE(curproc
) && !zone_dataset_visible(name
, NULL
))
1915 * zc_name name of filesystem
1916 * zc_cookie zap cursor
1917 * zc_nvlist_dst_size size of buffer for property nvlist
1920 * zc_name name of next filesystem
1921 * zc_cookie zap cursor
1922 * zc_objset_stats stats
1923 * zc_nvlist_dst property nvlist
1924 * zc_nvlist_dst_size size of property nvlist
1927 zfs_ioc_dataset_list_next(zfs_cmd_t
*zc
)
1932 size_t orig_len
= strlen(zc
->zc_name
);
1935 if ((error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
))) {
1936 if (error
== ENOENT
)
1941 p
= strrchr(zc
->zc_name
, '/');
1942 if (p
== NULL
|| p
[1] != '\0')
1943 (void) strlcat(zc
->zc_name
, "/", sizeof (zc
->zc_name
));
1944 p
= zc
->zc_name
+ strlen(zc
->zc_name
);
1947 * Pre-fetch the datasets. dmu_objset_prefetch() always returns 0
1948 * but is not declared void because its called by dmu_objset_find().
1950 if (zc
->zc_cookie
== 0) {
1951 uint64_t cookie
= 0;
1952 int len
= sizeof (zc
->zc_name
) - (p
- zc
->zc_name
);
1954 while (dmu_dir_list_next(os
, len
, p
, NULL
, &cookie
) == 0)
1955 (void) dmu_objset_prefetch(p
, NULL
);
1959 error
= dmu_dir_list_next(os
,
1960 sizeof (zc
->zc_name
) - (p
- zc
->zc_name
), p
,
1961 NULL
, &zc
->zc_cookie
);
1962 if (error
== ENOENT
)
1964 } while (error
== 0 && dataset_name_hidden(zc
->zc_name
) &&
1965 !(zc
->zc_iflags
& FKIOCTL
));
1966 dmu_objset_rele(os
, FTAG
);
1969 * If it's an internal dataset (ie. with a '$' in its name),
1970 * don't try to get stats for it, otherwise we'll return ENOENT.
1972 if (error
== 0 && strchr(zc
->zc_name
, '$') == NULL
) {
1973 error
= zfs_ioc_objset_stats(zc
); /* fill in the stats */
1974 if (error
== ENOENT
) {
1975 /* We lost a race with destroy, get the next one. */
1976 zc
->zc_name
[orig_len
] = '\0';
1985 * zc_name name of filesystem
1986 * zc_cookie zap cursor
1987 * zc_nvlist_dst_size size of buffer for property nvlist
1990 * zc_name name of next snapshot
1991 * zc_objset_stats stats
1992 * zc_nvlist_dst property nvlist
1993 * zc_nvlist_dst_size size of property nvlist
1996 zfs_ioc_snapshot_list_next(zfs_cmd_t
*zc
)
2002 if (zc
->zc_cookie
== 0)
2003 (void) dmu_objset_find(zc
->zc_name
, dmu_objset_prefetch
,
2004 NULL
, DS_FIND_SNAPSHOTS
);
2006 error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
);
2008 return (error
== ENOENT
? ESRCH
: error
);
2011 * A dataset name of maximum length cannot have any snapshots,
2012 * so exit immediately.
2014 if (strlcat(zc
->zc_name
, "@", sizeof (zc
->zc_name
)) >= MAXNAMELEN
) {
2015 dmu_objset_rele(os
, FTAG
);
2019 error
= dmu_snapshot_list_next(os
,
2020 sizeof (zc
->zc_name
) - strlen(zc
->zc_name
),
2021 zc
->zc_name
+ strlen(zc
->zc_name
), &zc
->zc_obj
, &zc
->zc_cookie
,
2026 dsl_pool_t
*dp
= os
->os_dsl_dataset
->ds_dir
->dd_pool
;
2029 * Since we probably don't have a hold on this snapshot,
2030 * it's possible that the objsetid could have been destroyed
2031 * and reused for a new objset. It's OK if this happens during
2032 * a zfs send operation, since the new createtxg will be
2033 * beyond the range we're interested in.
2035 rw_enter(&dp
->dp_config_rwlock
, RW_READER
);
2036 error
= dsl_dataset_hold_obj(dp
, zc
->zc_obj
, FTAG
, &ds
);
2037 rw_exit(&dp
->dp_config_rwlock
);
2039 if (error
== ENOENT
) {
2040 /* Racing with destroy, get the next one. */
2041 *strchr(zc
->zc_name
, '@') = '\0';
2042 dmu_objset_rele(os
, FTAG
);
2048 error
= dmu_objset_from_ds(ds
, &ossnap
);
2050 error
= zfs_ioc_objset_stats_impl(zc
, ossnap
);
2051 dsl_dataset_rele(ds
, FTAG
);
2053 } else if (error
== ENOENT
) {
2057 dmu_objset_rele(os
, FTAG
);
2058 /* if we failed, undo the @ that we tacked on to zc_name */
2060 *strchr(zc
->zc_name
, '@') = '\0';
2065 zfs_prop_set_userquota(const char *dsname
, nvpair_t
*pair
)
2067 const char *propname
= nvpair_name(pair
);
2069 unsigned int vallen
;
2072 zfs_userquota_prop_t type
;
2078 if (nvpair_type(pair
) == DATA_TYPE_NVLIST
) {
2080 VERIFY(nvpair_value_nvlist(pair
, &attrs
) == 0);
2081 if (nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
2087 * A correctly constructed propname is encoded as
2088 * userquota@<rid>-<domain>.
2090 if ((dash
= strchr(propname
, '-')) == NULL
||
2091 nvpair_value_uint64_array(pair
, &valary
, &vallen
) != 0 ||
2100 err
= zfs_sb_hold(dsname
, FTAG
, &zsb
, B_FALSE
);
2102 err
= zfs_set_userquota(zsb
, type
, domain
, rid
, quota
);
2103 zfs_sb_rele(zsb
, FTAG
);
2110 * If the named property is one that has a special function to set its value,
2111 * return 0 on success and a positive error code on failure; otherwise if it is
2112 * not one of the special properties handled by this function, return -1.
2114 * XXX: It would be better for callers of the property interface if we handled
2115 * these special cases in dsl_prop.c (in the dsl layer).
2118 zfs_prop_set_special(const char *dsname
, zprop_source_t source
,
2121 const char *propname
= nvpair_name(pair
);
2122 zfs_prop_t prop
= zfs_name_to_prop(propname
);
2126 if (prop
== ZPROP_INVAL
) {
2127 if (zfs_prop_userquota(propname
))
2128 return (zfs_prop_set_userquota(dsname
, pair
));
2132 if (nvpair_type(pair
) == DATA_TYPE_NVLIST
) {
2134 VERIFY(nvpair_value_nvlist(pair
, &attrs
) == 0);
2135 VERIFY(nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
2139 if (zfs_prop_get_type(prop
) == PROP_TYPE_STRING
)
2142 VERIFY(0 == nvpair_value_uint64(pair
, &intval
));
2145 case ZFS_PROP_QUOTA
:
2146 err
= dsl_dir_set_quota(dsname
, source
, intval
);
2148 case ZFS_PROP_REFQUOTA
:
2149 err
= dsl_dataset_set_quota(dsname
, source
, intval
);
2151 case ZFS_PROP_RESERVATION
:
2152 err
= dsl_dir_set_reservation(dsname
, source
, intval
);
2154 case ZFS_PROP_REFRESERVATION
:
2155 err
= dsl_dataset_set_reservation(dsname
, source
, intval
);
2157 case ZFS_PROP_VOLSIZE
:
2158 err
= zvol_set_volsize(dsname
, intval
);
2160 case ZFS_PROP_VERSION
:
2164 if ((err
= zfs_sb_hold(dsname
, FTAG
, &zsb
, B_TRUE
)) != 0)
2167 err
= zfs_set_version(zsb
, intval
);
2168 zfs_sb_rele(zsb
, FTAG
);
2170 if (err
== 0 && intval
>= ZPL_VERSION_USERSPACE
) {
2173 zc
= kmem_zalloc(sizeof (zfs_cmd_t
), KM_SLEEP
);
2174 (void) strcpy(zc
->zc_name
, dsname
);
2175 (void) zfs_ioc_userspace_upgrade(zc
);
2176 kmem_free(zc
, sizeof (zfs_cmd_t
));
2189 * This function is best effort. If it fails to set any of the given properties,
2190 * it continues to set as many as it can and returns the first error
2191 * encountered. If the caller provides a non-NULL errlist, it also gives the
2192 * complete list of names of all the properties it failed to set along with the
2193 * corresponding error numbers. The caller is responsible for freeing the
2196 * If every property is set successfully, zero is returned and the list pointed
2197 * at by errlist is NULL.
2200 zfs_set_prop_nvlist(const char *dsname
, zprop_source_t source
, nvlist_t
*nvl
,
2208 nvlist_t
*genericnvl
;
2212 VERIFY(nvlist_alloc(&genericnvl
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
2213 VERIFY(nvlist_alloc(&errors
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
2214 VERIFY(nvlist_alloc(&retrynvl
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
2218 while ((pair
= nvlist_next_nvpair(nvl
, pair
)) != NULL
) {
2219 const char *propname
= nvpair_name(pair
);
2220 zfs_prop_t prop
= zfs_name_to_prop(propname
);
2223 /* decode the property value */
2225 if (nvpair_type(pair
) == DATA_TYPE_NVLIST
) {
2227 VERIFY(nvpair_value_nvlist(pair
, &attrs
) == 0);
2228 if (nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
2233 /* Validate value type */
2234 if (err
== 0 && prop
== ZPROP_INVAL
) {
2235 if (zfs_prop_user(propname
)) {
2236 if (nvpair_type(propval
) != DATA_TYPE_STRING
)
2238 } else if (zfs_prop_userquota(propname
)) {
2239 if (nvpair_type(propval
) !=
2240 DATA_TYPE_UINT64_ARRAY
)
2243 } else if (err
== 0) {
2244 if (nvpair_type(propval
) == DATA_TYPE_STRING
) {
2245 if (zfs_prop_get_type(prop
) != PROP_TYPE_STRING
)
2247 } else if (nvpair_type(propval
) == DATA_TYPE_UINT64
) {
2250 VERIFY(nvpair_value_uint64(propval
,
2253 switch (zfs_prop_get_type(prop
)) {
2254 case PROP_TYPE_NUMBER
:
2256 case PROP_TYPE_STRING
:
2259 case PROP_TYPE_INDEX
:
2260 if (zfs_prop_index_to_string(prop
,
2261 intval
, &unused
) != 0)
2266 "unknown property type");
2273 /* Validate permissions */
2275 err
= zfs_check_settable(dsname
, pair
, CRED());
2278 err
= zfs_prop_set_special(dsname
, source
, pair
);
2281 * For better performance we build up a list of
2282 * properties to set in a single transaction.
2284 err
= nvlist_add_nvpair(genericnvl
, pair
);
2285 } else if (err
!= 0 && nvl
!= retrynvl
) {
2287 * This may be a spurious error caused by
2288 * receiving quota and reservation out of order.
2289 * Try again in a second pass.
2291 err
= nvlist_add_nvpair(retrynvl
, pair
);
2296 VERIFY(nvlist_add_int32(errors
, propname
, err
) == 0);
2299 if (nvl
!= retrynvl
&& !nvlist_empty(retrynvl
)) {
2304 if (!nvlist_empty(genericnvl
) &&
2305 dsl_props_set(dsname
, source
, genericnvl
) != 0) {
2307 * If this fails, we still want to set as many properties as we
2308 * can, so try setting them individually.
2311 while ((pair
= nvlist_next_nvpair(genericnvl
, pair
)) != NULL
) {
2312 const char *propname
= nvpair_name(pair
);
2316 if (nvpair_type(pair
) == DATA_TYPE_NVLIST
) {
2318 VERIFY(nvpair_value_nvlist(pair
, &attrs
) == 0);
2319 VERIFY(nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
2323 if (nvpair_type(propval
) == DATA_TYPE_STRING
) {
2324 VERIFY(nvpair_value_string(propval
,
2326 err
= dsl_prop_set(dsname
, propname
, source
, 1,
2327 strlen(strval
) + 1, strval
);
2329 VERIFY(nvpair_value_uint64(propval
,
2331 err
= dsl_prop_set(dsname
, propname
, source
, 8,
2336 VERIFY(nvlist_add_int32(errors
, propname
,
2341 nvlist_free(genericnvl
);
2342 nvlist_free(retrynvl
);
2344 if ((pair
= nvlist_next_nvpair(errors
, NULL
)) == NULL
) {
2345 nvlist_free(errors
);
2348 VERIFY(nvpair_value_int32(pair
, &rv
) == 0);
2351 if (errlist
== NULL
)
2352 nvlist_free(errors
);
2360 * Check that all the properties are valid user properties.
2363 zfs_check_userprops(char *fsname
, nvlist_t
*nvl
)
2365 nvpair_t
*pair
= NULL
;
2368 while ((pair
= nvlist_next_nvpair(nvl
, pair
)) != NULL
) {
2369 const char *propname
= nvpair_name(pair
);
2372 if (!zfs_prop_user(propname
) ||
2373 nvpair_type(pair
) != DATA_TYPE_STRING
)
2376 if ((error
= zfs_secpolicy_write_perms(fsname
,
2377 ZFS_DELEG_PERM_USERPROP
, CRED())))
2380 if (strlen(propname
) >= ZAP_MAXNAMELEN
)
2381 return (ENAMETOOLONG
);
2383 VERIFY(nvpair_value_string(pair
, &valstr
) == 0);
2384 if (strlen(valstr
) >= ZAP_MAXVALUELEN
)
2391 props_skip(nvlist_t
*props
, nvlist_t
*skipped
, nvlist_t
**newprops
)
2395 VERIFY(nvlist_alloc(newprops
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
2398 while ((pair
= nvlist_next_nvpair(props
, pair
)) != NULL
) {
2399 if (nvlist_exists(skipped
, nvpair_name(pair
)))
2402 VERIFY(nvlist_add_nvpair(*newprops
, pair
) == 0);
2407 clear_received_props(objset_t
*os
, const char *fs
, nvlist_t
*props
,
2411 nvlist_t
*cleared_props
= NULL
;
2412 props_skip(props
, skipped
, &cleared_props
);
2413 if (!nvlist_empty(cleared_props
)) {
2415 * Acts on local properties until the dataset has received
2416 * properties at least once on or after SPA_VERSION_RECVD_PROPS.
2418 zprop_source_t flags
= (ZPROP_SRC_NONE
|
2419 (dsl_prop_get_hasrecvd(os
) ? ZPROP_SRC_RECEIVED
: 0));
2420 err
= zfs_set_prop_nvlist(fs
, flags
, cleared_props
, NULL
);
2422 nvlist_free(cleared_props
);
2428 * zc_name name of filesystem
2429 * zc_value name of property to set
2430 * zc_nvlist_src{_size} nvlist of properties to apply
2431 * zc_cookie received properties flag
2434 * zc_nvlist_dst{_size} error for each unapplied received property
2437 zfs_ioc_set_prop(zfs_cmd_t
*zc
)
2440 boolean_t received
= zc
->zc_cookie
;
2441 zprop_source_t source
= (received
? ZPROP_SRC_RECEIVED
:
2443 nvlist_t
*errors
= NULL
;
2446 if ((error
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
2447 zc
->zc_iflags
, &nvl
)) != 0)
2451 nvlist_t
*origprops
;
2454 if (dmu_objset_hold(zc
->zc_name
, FTAG
, &os
) == 0) {
2455 if (dsl_prop_get_received(os
, &origprops
) == 0) {
2456 (void) clear_received_props(os
,
2457 zc
->zc_name
, origprops
, nvl
);
2458 nvlist_free(origprops
);
2461 dsl_prop_set_hasrecvd(os
);
2462 dmu_objset_rele(os
, FTAG
);
2466 error
= zfs_set_prop_nvlist(zc
->zc_name
, source
, nvl
, &errors
);
2468 if (zc
->zc_nvlist_dst
!= 0 && errors
!= NULL
) {
2469 (void) put_nvlist(zc
, errors
);
2472 nvlist_free(errors
);
2479 * zc_name name of filesystem
2480 * zc_value name of property to inherit
2481 * zc_cookie revert to received value if TRUE
2486 zfs_ioc_inherit_prop(zfs_cmd_t
*zc
)
2488 const char *propname
= zc
->zc_value
;
2489 zfs_prop_t prop
= zfs_name_to_prop(propname
);
2490 boolean_t received
= zc
->zc_cookie
;
2491 zprop_source_t source
= (received
2492 ? ZPROP_SRC_NONE
/* revert to received value, if any */
2493 : ZPROP_SRC_INHERITED
); /* explicitly inherit */
2502 * zfs_prop_set_special() expects properties in the form of an
2503 * nvpair with type info.
2505 if (prop
== ZPROP_INVAL
) {
2506 if (!zfs_prop_user(propname
))
2509 type
= PROP_TYPE_STRING
;
2510 } else if (prop
== ZFS_PROP_VOLSIZE
||
2511 prop
== ZFS_PROP_VERSION
) {
2514 type
= zfs_prop_get_type(prop
);
2517 VERIFY(nvlist_alloc(&dummy
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
2520 case PROP_TYPE_STRING
:
2521 VERIFY(0 == nvlist_add_string(dummy
, propname
, ""));
2523 case PROP_TYPE_NUMBER
:
2524 case PROP_TYPE_INDEX
:
2525 VERIFY(0 == nvlist_add_uint64(dummy
, propname
, 0));
2532 pair
= nvlist_next_nvpair(dummy
, NULL
);
2533 err
= zfs_prop_set_special(zc
->zc_name
, source
, pair
);
2536 return (err
); /* special property already handled */
2539 * Only check this in the non-received case. We want to allow
2540 * 'inherit -S' to revert non-inheritable properties like quota
2541 * and reservation to the received or default values even though
2542 * they are not considered inheritable.
2544 if (prop
!= ZPROP_INVAL
&& !zfs_prop_inheritable(prop
))
2548 /* the property name has been validated by zfs_secpolicy_inherit() */
2549 return (dsl_prop_set(zc
->zc_name
, zc
->zc_value
, source
, 0, 0, NULL
));
2553 zfs_ioc_pool_set_props(zfs_cmd_t
*zc
)
2560 if ((error
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
2561 zc
->zc_iflags
, &props
)))
2565 * If the only property is the configfile, then just do a spa_lookup()
2566 * to handle the faulted case.
2568 pair
= nvlist_next_nvpair(props
, NULL
);
2569 if (pair
!= NULL
&& strcmp(nvpair_name(pair
),
2570 zpool_prop_to_name(ZPOOL_PROP_CACHEFILE
)) == 0 &&
2571 nvlist_next_nvpair(props
, pair
) == NULL
) {
2572 mutex_enter(&spa_namespace_lock
);
2573 if ((spa
= spa_lookup(zc
->zc_name
)) != NULL
) {
2574 spa_configfile_set(spa
, props
, B_FALSE
);
2575 spa_config_sync(spa
, B_FALSE
, B_TRUE
);
2577 mutex_exit(&spa_namespace_lock
);
2584 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0) {
2589 error
= spa_prop_set(spa
, props
);
2592 spa_close(spa
, FTAG
);
2598 zfs_ioc_pool_get_props(zfs_cmd_t
*zc
)
2602 nvlist_t
*nvp
= NULL
;
2604 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0) {
2606 * If the pool is faulted, there may be properties we can still
2607 * get (such as altroot and cachefile), so attempt to get them
2610 mutex_enter(&spa_namespace_lock
);
2611 if ((spa
= spa_lookup(zc
->zc_name
)) != NULL
)
2612 error
= spa_prop_get(spa
, &nvp
);
2613 mutex_exit(&spa_namespace_lock
);
2615 error
= spa_prop_get(spa
, &nvp
);
2616 spa_close(spa
, FTAG
);
2619 if (error
== 0 && zc
->zc_nvlist_dst
!= 0)
2620 error
= put_nvlist(zc
, nvp
);
2630 * zc_name name of volume
2635 zfs_ioc_create_minor(zfs_cmd_t
*zc
)
2637 return (zvol_create_minor(zc
->zc_name
));
2642 * zc_name name of volume
2647 zfs_ioc_remove_minor(zfs_cmd_t
*zc
)
2649 return (zvol_remove_minor(zc
->zc_name
));
2654 * zc_name name of filesystem
2655 * zc_nvlist_src{_size} nvlist of delegated permissions
2656 * zc_perm_action allow/unallow flag
2661 zfs_ioc_set_fsacl(zfs_cmd_t
*zc
)
2664 nvlist_t
*fsaclnv
= NULL
;
2666 if ((error
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
2667 zc
->zc_iflags
, &fsaclnv
)) != 0)
2671 * Verify nvlist is constructed correctly
2673 if ((error
= zfs_deleg_verify_nvlist(fsaclnv
)) != 0) {
2674 nvlist_free(fsaclnv
);
2679 * If we don't have PRIV_SYS_MOUNT, then validate
2680 * that user is allowed to hand out each permission in
2684 error
= secpolicy_zfs(CRED());
2686 if (zc
->zc_perm_action
== B_FALSE
) {
2687 error
= dsl_deleg_can_allow(zc
->zc_name
,
2690 error
= dsl_deleg_can_unallow(zc
->zc_name
,
2696 error
= dsl_deleg_set(zc
->zc_name
, fsaclnv
, zc
->zc_perm_action
);
2698 nvlist_free(fsaclnv
);
2704 * zc_name name of filesystem
2707 * zc_nvlist_src{_size} nvlist of delegated permissions
2710 zfs_ioc_get_fsacl(zfs_cmd_t
*zc
)
2715 if ((error
= dsl_deleg_get(zc
->zc_name
, &nvp
)) == 0) {
2716 error
= put_nvlist(zc
, nvp
);
2723 #ifdef HAVE_SNAPSHOT
2725 * Search the vfs list for a specified resource. Returns a pointer to it
2726 * or NULL if no suitable entry is found. The caller of this routine
2727 * is responsible for releasing the returned vfs pointer.
2730 zfs_get_vfs(const char *resource
)
2733 struct vfs
*vfs_found
= NULL
;
2735 vfs_list_read_lock();
2738 if (strcmp(refstr_value(vfsp
->vfs_resource
), resource
) == 0) {
2743 vfsp
= vfsp
->vfs_next
;
2744 } while (vfsp
!= rootvfs
);
2748 #endif /* HAVE_SNAPSHOT */
2752 zfs_create_cb(objset_t
*os
, void *arg
, cred_t
*cr
, dmu_tx_t
*tx
)
2754 zfs_creat_t
*zct
= arg
;
2756 zfs_create_fs(os
, cr
, zct
->zct_zplprops
, tx
);
2759 #define ZFS_PROP_UNDEFINED ((uint64_t)-1)
2763 * createprops list of properties requested by creator
2764 * default_zplver zpl version to use if unspecified in createprops
2765 * fuids_ok fuids allowed in this version of the spa?
2766 * os parent objset pointer (NULL if root fs)
2769 * zplprops values for the zplprops we attach to the master node object
2770 * is_ci true if requested file system will be purely case-insensitive
2772 * Determine the settings for utf8only, normalization and
2773 * casesensitivity. Specific values may have been requested by the
2774 * creator and/or we can inherit values from the parent dataset. If
2775 * the file system is of too early a vintage, a creator can not
2776 * request settings for these properties, even if the requested
2777 * setting is the default value. We don't actually want to create dsl
2778 * properties for these, so remove them from the source nvlist after
2782 zfs_fill_zplprops_impl(objset_t
*os
, uint64_t zplver
,
2783 boolean_t fuids_ok
, boolean_t sa_ok
, nvlist_t
*createprops
,
2784 nvlist_t
*zplprops
, boolean_t
*is_ci
)
2786 uint64_t sense
= ZFS_PROP_UNDEFINED
;
2787 uint64_t norm
= ZFS_PROP_UNDEFINED
;
2788 uint64_t u8
= ZFS_PROP_UNDEFINED
;
2790 ASSERT(zplprops
!= NULL
);
2793 * Pull out creator prop choices, if any.
2796 (void) nvlist_lookup_uint64(createprops
,
2797 zfs_prop_to_name(ZFS_PROP_VERSION
), &zplver
);
2798 (void) nvlist_lookup_uint64(createprops
,
2799 zfs_prop_to_name(ZFS_PROP_NORMALIZE
), &norm
);
2800 (void) nvlist_remove_all(createprops
,
2801 zfs_prop_to_name(ZFS_PROP_NORMALIZE
));
2802 (void) nvlist_lookup_uint64(createprops
,
2803 zfs_prop_to_name(ZFS_PROP_UTF8ONLY
), &u8
);
2804 (void) nvlist_remove_all(createprops
,
2805 zfs_prop_to_name(ZFS_PROP_UTF8ONLY
));
2806 (void) nvlist_lookup_uint64(createprops
,
2807 zfs_prop_to_name(ZFS_PROP_CASE
), &sense
);
2808 (void) nvlist_remove_all(createprops
,
2809 zfs_prop_to_name(ZFS_PROP_CASE
));
2813 * If the zpl version requested is whacky or the file system
2814 * or pool is version is too "young" to support normalization
2815 * and the creator tried to set a value for one of the props,
2818 if ((zplver
< ZPL_VERSION_INITIAL
|| zplver
> ZPL_VERSION
) ||
2819 (zplver
>= ZPL_VERSION_FUID
&& !fuids_ok
) ||
2820 (zplver
>= ZPL_VERSION_SA
&& !sa_ok
) ||
2821 (zplver
< ZPL_VERSION_NORMALIZATION
&&
2822 (norm
!= ZFS_PROP_UNDEFINED
|| u8
!= ZFS_PROP_UNDEFINED
||
2823 sense
!= ZFS_PROP_UNDEFINED
)))
2827 * Put the version in the zplprops
2829 VERIFY(nvlist_add_uint64(zplprops
,
2830 zfs_prop_to_name(ZFS_PROP_VERSION
), zplver
) == 0);
2832 if (norm
== ZFS_PROP_UNDEFINED
)
2833 VERIFY(zfs_get_zplprop(os
, ZFS_PROP_NORMALIZE
, &norm
) == 0);
2834 VERIFY(nvlist_add_uint64(zplprops
,
2835 zfs_prop_to_name(ZFS_PROP_NORMALIZE
), norm
) == 0);
2838 * If we're normalizing, names must always be valid UTF-8 strings.
2842 if (u8
== ZFS_PROP_UNDEFINED
)
2843 VERIFY(zfs_get_zplprop(os
, ZFS_PROP_UTF8ONLY
, &u8
) == 0);
2844 VERIFY(nvlist_add_uint64(zplprops
,
2845 zfs_prop_to_name(ZFS_PROP_UTF8ONLY
), u8
) == 0);
2847 if (sense
== ZFS_PROP_UNDEFINED
)
2848 VERIFY(zfs_get_zplprop(os
, ZFS_PROP_CASE
, &sense
) == 0);
2849 VERIFY(nvlist_add_uint64(zplprops
,
2850 zfs_prop_to_name(ZFS_PROP_CASE
), sense
) == 0);
2853 *is_ci
= (sense
== ZFS_CASE_INSENSITIVE
);
2859 zfs_fill_zplprops(const char *dataset
, nvlist_t
*createprops
,
2860 nvlist_t
*zplprops
, boolean_t
*is_ci
)
2862 boolean_t fuids_ok
, sa_ok
;
2863 uint64_t zplver
= ZPL_VERSION
;
2864 objset_t
*os
= NULL
;
2865 char parentname
[MAXNAMELEN
];
2871 (void) strlcpy(parentname
, dataset
, sizeof (parentname
));
2872 cp
= strrchr(parentname
, '/');
2876 if ((error
= spa_open(dataset
, &spa
, FTAG
)) != 0)
2879 spa_vers
= spa_version(spa
);
2880 spa_close(spa
, FTAG
);
2882 zplver
= zfs_zpl_version_map(spa_vers
);
2883 fuids_ok
= (zplver
>= ZPL_VERSION_FUID
);
2884 sa_ok
= (zplver
>= ZPL_VERSION_SA
);
2887 * Open parent object set so we can inherit zplprop values.
2889 if ((error
= dmu_objset_hold(parentname
, FTAG
, &os
)) != 0)
2892 error
= zfs_fill_zplprops_impl(os
, zplver
, fuids_ok
, sa_ok
, createprops
,
2894 dmu_objset_rele(os
, FTAG
);
2899 zfs_fill_zplprops_root(uint64_t spa_vers
, nvlist_t
*createprops
,
2900 nvlist_t
*zplprops
, boolean_t
*is_ci
)
2904 uint64_t zplver
= ZPL_VERSION
;
2907 zplver
= zfs_zpl_version_map(spa_vers
);
2908 fuids_ok
= (zplver
>= ZPL_VERSION_FUID
);
2909 sa_ok
= (zplver
>= ZPL_VERSION_SA
);
2911 error
= zfs_fill_zplprops_impl(NULL
, zplver
, fuids_ok
, sa_ok
,
2912 createprops
, zplprops
, is_ci
);
2918 * zc_objset_type type of objset to create (fs vs zvol)
2919 * zc_name name of new objset
2920 * zc_value name of snapshot to clone from (may be empty)
2921 * zc_nvlist_src{_size} nvlist of properties to apply
2926 zfs_ioc_create(zfs_cmd_t
*zc
)
2931 nvlist_t
*nvprops
= NULL
;
2932 void (*cbfunc
)(objset_t
*os
, void *arg
, cred_t
*cr
, dmu_tx_t
*tx
);
2933 dmu_objset_type_t type
= zc
->zc_objset_type
;
2938 cbfunc
= zfs_create_cb
;
2942 cbfunc
= zvol_create_cb
;
2949 if (strchr(zc
->zc_name
, '@') ||
2950 strchr(zc
->zc_name
, '%'))
2953 if (zc
->zc_nvlist_src
!= 0 &&
2954 (error
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
2955 zc
->zc_iflags
, &nvprops
)) != 0)
2958 zct
.zct_zplprops
= NULL
;
2959 zct
.zct_props
= nvprops
;
2961 if (zc
->zc_value
[0] != '\0') {
2963 * We're creating a clone of an existing snapshot.
2965 zc
->zc_value
[sizeof (zc
->zc_value
) - 1] = '\0';
2966 if (dataset_namecheck(zc
->zc_value
, NULL
, NULL
) != 0) {
2967 nvlist_free(nvprops
);
2971 error
= dmu_objset_hold(zc
->zc_value
, FTAG
, &clone
);
2973 nvlist_free(nvprops
);
2977 error
= dmu_objset_clone(zc
->zc_name
, dmu_objset_ds(clone
), 0);
2978 dmu_objset_rele(clone
, FTAG
);
2980 nvlist_free(nvprops
);
2984 boolean_t is_insensitive
= B_FALSE
;
2986 if (cbfunc
== NULL
) {
2987 nvlist_free(nvprops
);
2991 if (type
== DMU_OST_ZVOL
) {
2992 uint64_t volsize
, volblocksize
;
2994 if (nvprops
== NULL
||
2995 nvlist_lookup_uint64(nvprops
,
2996 zfs_prop_to_name(ZFS_PROP_VOLSIZE
),
2998 nvlist_free(nvprops
);
3002 if ((error
= nvlist_lookup_uint64(nvprops
,
3003 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE
),
3004 &volblocksize
)) != 0 && error
!= ENOENT
) {
3005 nvlist_free(nvprops
);
3010 volblocksize
= zfs_prop_default_numeric(
3011 ZFS_PROP_VOLBLOCKSIZE
);
3013 if ((error
= zvol_check_volblocksize(
3014 volblocksize
)) != 0 ||
3015 (error
= zvol_check_volsize(volsize
,
3016 volblocksize
)) != 0) {
3017 nvlist_free(nvprops
);
3020 } else if (type
== DMU_OST_ZFS
) {
3024 * We have to have normalization and
3025 * case-folding flags correct when we do the
3026 * file system creation, so go figure them out
3029 VERIFY(nvlist_alloc(&zct
.zct_zplprops
,
3030 NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
3031 error
= zfs_fill_zplprops(zc
->zc_name
, nvprops
,
3032 zct
.zct_zplprops
, &is_insensitive
);
3034 nvlist_free(nvprops
);
3035 nvlist_free(zct
.zct_zplprops
);
3039 error
= dmu_objset_create(zc
->zc_name
, type
,
3040 is_insensitive
? DS_FLAG_CI_DATASET
: 0, cbfunc
, &zct
);
3041 nvlist_free(zct
.zct_zplprops
);
3045 * It would be nice to do this atomically.
3048 error
= zfs_set_prop_nvlist(zc
->zc_name
, ZPROP_SRC_LOCAL
,
3051 (void) dmu_objset_destroy(zc
->zc_name
, B_FALSE
);
3053 nvlist_free(nvprops
);
3059 * zc_name name of filesystem
3060 * zc_value short name of snapshot
3061 * zc_cookie recursive flag
3062 * zc_nvlist_src[_size] property list
3065 * zc_value short snapname (i.e. part after the '@')
3068 zfs_ioc_snapshot(zfs_cmd_t
*zc
)
3070 nvlist_t
*nvprops
= NULL
;
3072 boolean_t recursive
= zc
->zc_cookie
;
3074 if (snapshot_namecheck(zc
->zc_value
, NULL
, NULL
) != 0)
3077 if (zc
->zc_nvlist_src
!= 0 &&
3078 (error
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
3079 zc
->zc_iflags
, &nvprops
)) != 0)
3082 error
= zfs_check_userprops(zc
->zc_name
, nvprops
);
3086 if (!nvlist_empty(nvprops
) &&
3087 zfs_earlier_version(zc
->zc_name
, SPA_VERSION_SNAP_PROPS
)) {
3092 error
= dmu_objset_snapshot(zc
->zc_name
, zc
->zc_value
, NULL
,
3093 nvprops
, recursive
, B_FALSE
, -1);
3096 nvlist_free(nvprops
);
3101 zfs_unmount_snap(const char *name
, void *arg
)
3103 #ifdef HAVE_SNAPSHOT
3107 char *snapname
= arg
;
3108 char *fullname
= kmem_asprintf("%s@%s", name
, snapname
);
3109 vfsp
= zfs_get_vfs(fullname
);
3111 } else if (strchr(name
, '@')) {
3112 vfsp
= zfs_get_vfs(name
);
3117 * Always force the unmount for snapshots.
3119 int flag
= MS_FORCE
;
3122 if ((err
= vn_vfswlock(vfsp
->vfs_vnodecovered
)) != 0) {
3127 if ((err
= dounmount(vfsp
, flag
, kcred
)) != 0)
3130 #endif /* HAVE_SNAPSHOT */
3136 * zc_name name of filesystem
3137 * zc_value short name of snapshot
3138 * zc_defer_destroy mark for deferred destroy
3143 zfs_ioc_destroy_snaps(zfs_cmd_t
*zc
)
3147 if (snapshot_namecheck(zc
->zc_value
, NULL
, NULL
) != 0)
3149 err
= dmu_objset_find(zc
->zc_name
,
3150 zfs_unmount_snap
, zc
->zc_value
, DS_FIND_CHILDREN
);
3153 return (dmu_snapshots_destroy(zc
->zc_name
, zc
->zc_value
,
3154 zc
->zc_defer_destroy
));
3159 * zc_name name of dataset to destroy
3160 * zc_objset_type type of objset
3161 * zc_defer_destroy mark for deferred destroy
3166 zfs_ioc_destroy(zfs_cmd_t
*zc
)
3169 if (strchr(zc
->zc_name
, '@') && zc
->zc_objset_type
== DMU_OST_ZFS
) {
3170 err
= zfs_unmount_snap(zc
->zc_name
, NULL
);
3175 err
= dmu_objset_destroy(zc
->zc_name
, zc
->zc_defer_destroy
);
3176 if (zc
->zc_objset_type
== DMU_OST_ZVOL
&& err
== 0)
3177 (void) zvol_remove_minor(zc
->zc_name
);
3183 * zc_name name of dataset to rollback (to most recent snapshot)
3188 zfs_ioc_rollback(zfs_cmd_t
*zc
)
3190 dsl_dataset_t
*ds
, *clone
;
3195 error
= dsl_dataset_hold(zc
->zc_name
, FTAG
, &ds
);
3199 /* must not be a snapshot */
3200 if (dsl_dataset_is_snapshot(ds
)) {
3201 dsl_dataset_rele(ds
, FTAG
);
3205 /* must have a most recent snapshot */
3206 if (ds
->ds_phys
->ds_prev_snap_txg
< TXG_INITIAL
) {
3207 dsl_dataset_rele(ds
, FTAG
);
3212 * Create clone of most recent snapshot.
3214 clone_name
= kmem_asprintf("%s/%%rollback", zc
->zc_name
);
3215 error
= dmu_objset_clone(clone_name
, ds
->ds_prev
, DS_FLAG_INCONSISTENT
);
3219 error
= dsl_dataset_own(clone_name
, B_TRUE
, FTAG
, &clone
);
3226 if (get_zfs_sb(zc
->zc_name
, &zsb
) == 0) {
3227 error
= zfs_suspend_fs(zsb
);
3231 if (dsl_dataset_tryown(ds
, B_FALSE
, FTAG
)) {
3232 error
= dsl_dataset_clone_swap(clone
, ds
,
3234 dsl_dataset_disown(ds
, FTAG
);
3239 resume_err
= zfs_resume_fs(zsb
, zc
->zc_name
);
3240 error
= error
? error
: resume_err
;
3244 if (dsl_dataset_tryown(ds
, B_FALSE
, FTAG
)) {
3245 error
= dsl_dataset_clone_swap(clone
, ds
, B_TRUE
);
3246 dsl_dataset_disown(ds
, FTAG
);
3254 * Destroy clone (which also closes it).
3256 (void) dsl_dataset_destroy(clone
, FTAG
, B_FALSE
);
3259 strfree(clone_name
);
3261 dsl_dataset_rele(ds
, FTAG
);
3267 * zc_name old name of dataset
3268 * zc_value new name of dataset
3269 * zc_cookie recursive flag (only valid for snapshots)
3274 zfs_ioc_rename(zfs_cmd_t
*zc
)
3276 boolean_t recursive
= zc
->zc_cookie
& 1;
3279 zc
->zc_value
[sizeof (zc
->zc_value
) - 1] = '\0';
3280 if (dataset_namecheck(zc
->zc_value
, NULL
, NULL
) != 0 ||
3281 strchr(zc
->zc_value
, '%'))
3285 * Unmount snapshot unless we're doing a recursive rename,
3286 * in which case the dataset code figures out which snapshots
3289 if (!recursive
&& strchr(zc
->zc_name
, '@') != NULL
&&
3290 zc
->zc_objset_type
== DMU_OST_ZFS
) {
3291 err
= zfs_unmount_snap(zc
->zc_name
, NULL
);
3296 err
= dmu_objset_rename(zc
->zc_name
, zc
->zc_value
, recursive
);
3297 if ((err
== 0) && (zc
->zc_objset_type
== DMU_OST_ZVOL
)) {
3298 (void) zvol_remove_minor(zc
->zc_name
);
3299 (void) zvol_create_minor(zc
->zc_value
);
3306 zfs_check_settable(const char *dsname
, nvpair_t
*pair
, cred_t
*cr
)
3308 const char *propname
= nvpair_name(pair
);
3309 boolean_t issnap
= (strchr(dsname
, '@') != NULL
);
3310 zfs_prop_t prop
= zfs_name_to_prop(propname
);
3314 if (prop
== ZPROP_INVAL
) {
3315 if (zfs_prop_user(propname
)) {
3316 if ((err
= zfs_secpolicy_write_perms(dsname
,
3317 ZFS_DELEG_PERM_USERPROP
, cr
)))
3322 if (!issnap
&& zfs_prop_userquota(propname
)) {
3323 const char *perm
= NULL
;
3324 const char *uq_prefix
=
3325 zfs_userquota_prop_prefixes
[ZFS_PROP_USERQUOTA
];
3326 const char *gq_prefix
=
3327 zfs_userquota_prop_prefixes
[ZFS_PROP_GROUPQUOTA
];
3329 if (strncmp(propname
, uq_prefix
,
3330 strlen(uq_prefix
)) == 0) {
3331 perm
= ZFS_DELEG_PERM_USERQUOTA
;
3332 } else if (strncmp(propname
, gq_prefix
,
3333 strlen(gq_prefix
)) == 0) {
3334 perm
= ZFS_DELEG_PERM_GROUPQUOTA
;
3336 /* USERUSED and GROUPUSED are read-only */
3340 if ((err
= zfs_secpolicy_write_perms(dsname
, perm
, cr
)))
3351 if (nvpair_type(pair
) == DATA_TYPE_NVLIST
) {
3353 * dsl_prop_get_all_impl() returns properties in this
3357 VERIFY(nvpair_value_nvlist(pair
, &attrs
) == 0);
3358 VERIFY(nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
3363 * Check that this value is valid for this pool version
3366 case ZFS_PROP_COMPRESSION
:
3368 * If the user specified gzip compression, make sure
3369 * the SPA supports it. We ignore any errors here since
3370 * we'll catch them later.
3372 if (nvpair_type(pair
) == DATA_TYPE_UINT64
&&
3373 nvpair_value_uint64(pair
, &intval
) == 0) {
3374 if (intval
>= ZIO_COMPRESS_GZIP_1
&&
3375 intval
<= ZIO_COMPRESS_GZIP_9
&&
3376 zfs_earlier_version(dsname
,
3377 SPA_VERSION_GZIP_COMPRESSION
)) {
3381 if (intval
== ZIO_COMPRESS_ZLE
&&
3382 zfs_earlier_version(dsname
,
3383 SPA_VERSION_ZLE_COMPRESSION
))
3387 * If this is a bootable dataset then
3388 * verify that the compression algorithm
3389 * is supported for booting. We must return
3390 * something other than ENOTSUP since it
3391 * implies a downrev pool version.
3393 if (zfs_is_bootfs(dsname
) &&
3394 !BOOTFS_COMPRESS_VALID(intval
)) {
3400 case ZFS_PROP_COPIES
:
3401 if (zfs_earlier_version(dsname
, SPA_VERSION_DITTO_BLOCKS
))
3405 case ZFS_PROP_DEDUP
:
3406 if (zfs_earlier_version(dsname
, SPA_VERSION_DEDUP
))
3410 case ZFS_PROP_SHARESMB
:
3411 if (zpl_earlier_version(dsname
, ZPL_VERSION_FUID
))
3415 case ZFS_PROP_ACLINHERIT
:
3416 if (nvpair_type(pair
) == DATA_TYPE_UINT64
&&
3417 nvpair_value_uint64(pair
, &intval
) == 0) {
3418 if (intval
== ZFS_ACL_PASSTHROUGH_X
&&
3419 zfs_earlier_version(dsname
,
3420 SPA_VERSION_PASSTHROUGH_X
))
3428 return (zfs_secpolicy_setprop(dsname
, prop
, pair
, CRED()));
3432 * Removes properties from the given props list that fail permission checks
3433 * needed to clear them and to restore them in case of a receive error. For each
3434 * property, make sure we have both set and inherit permissions.
3436 * Returns the first error encountered if any permission checks fail. If the
3437 * caller provides a non-NULL errlist, it also gives the complete list of names
3438 * of all the properties that failed a permission check along with the
3439 * corresponding error numbers. The caller is responsible for freeing the
3442 * If every property checks out successfully, zero is returned and the list
3443 * pointed at by errlist is NULL.
3446 zfs_check_clearable(char *dataset
, nvlist_t
*props
, nvlist_t
**errlist
)
3449 nvpair_t
*pair
, *next_pair
;
3456 VERIFY(nvlist_alloc(&errors
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
3458 zc
= kmem_alloc(sizeof (zfs_cmd_t
), KM_SLEEP
);
3459 (void) strcpy(zc
->zc_name
, dataset
);
3460 pair
= nvlist_next_nvpair(props
, NULL
);
3461 while (pair
!= NULL
) {
3462 next_pair
= nvlist_next_nvpair(props
, pair
);
3464 (void) strcpy(zc
->zc_value
, nvpair_name(pair
));
3465 if ((err
= zfs_check_settable(dataset
, pair
, CRED())) != 0 ||
3466 (err
= zfs_secpolicy_inherit(zc
, CRED())) != 0) {
3467 VERIFY(nvlist_remove_nvpair(props
, pair
) == 0);
3468 VERIFY(nvlist_add_int32(errors
,
3469 zc
->zc_value
, err
) == 0);
3473 kmem_free(zc
, sizeof (zfs_cmd_t
));
3475 if ((pair
= nvlist_next_nvpair(errors
, NULL
)) == NULL
) {
3476 nvlist_free(errors
);
3479 VERIFY(nvpair_value_int32(pair
, &rv
) == 0);
3482 if (errlist
== NULL
)
3483 nvlist_free(errors
);
3491 propval_equals(nvpair_t
*p1
, nvpair_t
*p2
)
3493 if (nvpair_type(p1
) == DATA_TYPE_NVLIST
) {
3494 /* dsl_prop_get_all_impl() format */
3496 VERIFY(nvpair_value_nvlist(p1
, &attrs
) == 0);
3497 VERIFY(nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
3501 if (nvpair_type(p2
) == DATA_TYPE_NVLIST
) {
3503 VERIFY(nvpair_value_nvlist(p2
, &attrs
) == 0);
3504 VERIFY(nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
3508 if (nvpair_type(p1
) != nvpair_type(p2
))
3511 if (nvpair_type(p1
) == DATA_TYPE_STRING
) {
3512 char *valstr1
, *valstr2
;
3514 VERIFY(nvpair_value_string(p1
, (char **)&valstr1
) == 0);
3515 VERIFY(nvpair_value_string(p2
, (char **)&valstr2
) == 0);
3516 return (strcmp(valstr1
, valstr2
) == 0);
3518 uint64_t intval1
, intval2
;
3520 VERIFY(nvpair_value_uint64(p1
, &intval1
) == 0);
3521 VERIFY(nvpair_value_uint64(p2
, &intval2
) == 0);
3522 return (intval1
== intval2
);
3527 * Remove properties from props if they are not going to change (as determined
3528 * by comparison with origprops). Remove them from origprops as well, since we
3529 * do not need to clear or restore properties that won't change.
3532 props_reduce(nvlist_t
*props
, nvlist_t
*origprops
)
3534 nvpair_t
*pair
, *next_pair
;
3536 if (origprops
== NULL
)
3537 return; /* all props need to be received */
3539 pair
= nvlist_next_nvpair(props
, NULL
);
3540 while (pair
!= NULL
) {
3541 const char *propname
= nvpair_name(pair
);
3544 next_pair
= nvlist_next_nvpair(props
, pair
);
3546 if ((nvlist_lookup_nvpair(origprops
, propname
,
3547 &match
) != 0) || !propval_equals(pair
, match
))
3548 goto next
; /* need to set received value */
3550 /* don't clear the existing received value */
3551 (void) nvlist_remove_nvpair(origprops
, match
);
3552 /* don't bother receiving the property */
3553 (void) nvlist_remove_nvpair(props
, pair
);
3560 static boolean_t zfs_ioc_recv_inject_err
;
3565 * zc_name name of containing filesystem
3566 * zc_nvlist_src{_size} nvlist of properties to apply
3567 * zc_value name of snapshot to create
3568 * zc_string name of clone origin (if DRR_FLAG_CLONE)
3569 * zc_cookie file descriptor to recv from
3570 * zc_begin_record the BEGIN record of the stream (not byteswapped)
3571 * zc_guid force flag
3572 * zc_cleanup_fd cleanup-on-exit file descriptor
3573 * zc_action_handle handle for this guid/ds mapping (or zero on first call)
3576 * zc_cookie number of bytes read
3577 * zc_nvlist_dst{_size} error for each unapplied received property
3578 * zc_obj zprop_errflags_t
3579 * zc_action_handle handle for this guid/ds mapping
3582 zfs_ioc_recv(zfs_cmd_t
*zc
)
3586 dmu_recv_cookie_t drc
;
3587 boolean_t force
= (boolean_t
)zc
->zc_guid
;
3590 int props_error
= 0;
3593 nvlist_t
*props
= NULL
; /* sent properties */
3594 nvlist_t
*origprops
= NULL
; /* existing properties */
3595 objset_t
*origin
= NULL
;
3597 char tofs
[ZFS_MAXNAMELEN
];
3598 boolean_t first_recvd_props
= B_FALSE
;
3600 if (dataset_namecheck(zc
->zc_value
, NULL
, NULL
) != 0 ||
3601 strchr(zc
->zc_value
, '@') == NULL
||
3602 strchr(zc
->zc_value
, '%'))
3605 (void) strcpy(tofs
, zc
->zc_value
);
3606 tosnap
= strchr(tofs
, '@');
3609 if (zc
->zc_nvlist_src
!= 0 &&
3610 (error
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
3611 zc
->zc_iflags
, &props
)) != 0)
3621 VERIFY(nvlist_alloc(&errors
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
3623 if (props
&& dmu_objset_hold(tofs
, FTAG
, &os
) == 0) {
3624 if ((spa_version(os
->os_spa
) >= SPA_VERSION_RECVD_PROPS
) &&
3625 !dsl_prop_get_hasrecvd(os
)) {
3626 first_recvd_props
= B_TRUE
;
3630 * If new received properties are supplied, they are to
3631 * completely replace the existing received properties, so stash
3632 * away the existing ones.
3634 if (dsl_prop_get_received(os
, &origprops
) == 0) {
3635 nvlist_t
*errlist
= NULL
;
3637 * Don't bother writing a property if its value won't
3638 * change (and avoid the unnecessary security checks).
3640 * The first receive after SPA_VERSION_RECVD_PROPS is a
3641 * special case where we blow away all local properties
3644 if (!first_recvd_props
)
3645 props_reduce(props
, origprops
);
3646 if (zfs_check_clearable(tofs
, origprops
,
3648 (void) nvlist_merge(errors
, errlist
, 0);
3649 nvlist_free(errlist
);
3652 dmu_objset_rele(os
, FTAG
);
3655 if (zc
->zc_string
[0]) {
3656 error
= dmu_objset_hold(zc
->zc_string
, FTAG
, &origin
);
3661 error
= dmu_recv_begin(tofs
, tosnap
, zc
->zc_top_ds
,
3662 &zc
->zc_begin_record
, force
, origin
, &drc
);
3664 dmu_objset_rele(origin
, FTAG
);
3669 * Set properties before we receive the stream so that they are applied
3670 * to the new data. Note that we must call dmu_recv_stream() if
3671 * dmu_recv_begin() succeeds.
3676 if (dmu_objset_from_ds(drc
.drc_logical_ds
, &os
) == 0) {
3677 if (drc
.drc_newfs
) {
3678 if (spa_version(os
->os_spa
) >=
3679 SPA_VERSION_RECVD_PROPS
)
3680 first_recvd_props
= B_TRUE
;
3681 } else if (origprops
!= NULL
) {
3682 if (clear_received_props(os
, tofs
, origprops
,
3683 first_recvd_props
? NULL
: props
) != 0)
3684 zc
->zc_obj
|= ZPROP_ERR_NOCLEAR
;
3686 zc
->zc_obj
|= ZPROP_ERR_NOCLEAR
;
3688 dsl_prop_set_hasrecvd(os
);
3689 } else if (!drc
.drc_newfs
) {
3690 zc
->zc_obj
|= ZPROP_ERR_NOCLEAR
;
3693 (void) zfs_set_prop_nvlist(tofs
, ZPROP_SRC_RECEIVED
,
3695 (void) nvlist_merge(errors
, errlist
, 0);
3696 nvlist_free(errlist
);
3699 if (fit_error_list(zc
, &errors
) != 0 || put_nvlist(zc
, errors
) != 0) {
3701 * Caller made zc->zc_nvlist_dst less than the minimum expected
3702 * size or supplied an invalid address.
3704 props_error
= EINVAL
;
3708 error
= dmu_recv_stream(&drc
, fp
->f_vnode
, &off
, zc
->zc_cleanup_fd
,
3709 &zc
->zc_action_handle
);
3712 zfs_sb_t
*zsb
= NULL
;
3714 if (get_zfs_sb(tofs
, &zsb
) == 0) {
3718 error
= zfs_suspend_fs(zsb
);
3720 * If the suspend fails, then the recv_end will
3721 * likely also fail, and clean up after itself.
3723 end_err
= dmu_recv_end(&drc
);
3725 error
= zfs_resume_fs(zsb
, tofs
);
3726 error
= error
? error
: end_err
;
3729 error
= dmu_recv_end(&drc
);
3733 zc
->zc_cookie
= off
- fp
->f_offset
;
3734 if (VOP_SEEK(fp
->f_vnode
, fp
->f_offset
, &off
, NULL
) == 0)
3738 if (zfs_ioc_recv_inject_err
) {
3739 zfs_ioc_recv_inject_err
= B_FALSE
;
3744 * On error, restore the original props.
3746 if (error
&& props
) {
3747 if (dmu_objset_hold(tofs
, FTAG
, &os
) == 0) {
3748 if (clear_received_props(os
, tofs
, props
, NULL
) != 0) {
3750 * We failed to clear the received properties.
3751 * Since we may have left a $recvd value on the
3752 * system, we can't clear the $hasrecvd flag.
3754 zc
->zc_obj
|= ZPROP_ERR_NORESTORE
;
3755 } else if (first_recvd_props
) {
3756 dsl_prop_unset_hasrecvd(os
);
3758 dmu_objset_rele(os
, FTAG
);
3759 } else if (!drc
.drc_newfs
) {
3760 /* We failed to clear the received properties. */
3761 zc
->zc_obj
|= ZPROP_ERR_NORESTORE
;
3764 if (origprops
== NULL
&& !drc
.drc_newfs
) {
3765 /* We failed to stash the original properties. */
3766 zc
->zc_obj
|= ZPROP_ERR_NORESTORE
;
3770 * dsl_props_set() will not convert RECEIVED to LOCAL on or
3771 * after SPA_VERSION_RECVD_PROPS, so we need to specify LOCAL
3772 * explictly if we're restoring local properties cleared in the
3773 * first new-style receive.
3775 if (origprops
!= NULL
&&
3776 zfs_set_prop_nvlist(tofs
, (first_recvd_props
?
3777 ZPROP_SRC_LOCAL
: ZPROP_SRC_RECEIVED
),
3778 origprops
, NULL
) != 0) {
3780 * We stashed the original properties but failed to
3783 zc
->zc_obj
|= ZPROP_ERR_NORESTORE
;
3788 nvlist_free(origprops
);
3789 nvlist_free(errors
);
3793 error
= props_error
;
3800 * zc_name name of snapshot to send
3801 * zc_cookie file descriptor to send stream to
3802 * zc_obj fromorigin flag (mutually exclusive with zc_fromobj)
3803 * zc_sendobj objsetid of snapshot to send
3804 * zc_fromobj objsetid of incremental fromsnap (may be zero)
3809 zfs_ioc_send(zfs_cmd_t
*zc
)
3811 objset_t
*fromsnap
= NULL
;
3817 dsl_dataset_t
*dsfrom
= NULL
;
3821 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
3825 dp
= spa_get_dsl(spa
);
3826 rw_enter(&dp
->dp_config_rwlock
, RW_READER
);
3827 error
= dsl_dataset_hold_obj(dp
, zc
->zc_sendobj
, FTAG
, &ds
);
3828 rw_exit(&dp
->dp_config_rwlock
);
3830 spa_close(spa
, FTAG
);
3834 error
= dmu_objset_from_ds(ds
, &tosnap
);
3836 dsl_dataset_rele(ds
, FTAG
);
3837 spa_close(spa
, FTAG
);
3841 if (zc
->zc_fromobj
!= 0) {
3842 rw_enter(&dp
->dp_config_rwlock
, RW_READER
);
3843 error
= dsl_dataset_hold_obj(dp
, zc
->zc_fromobj
, FTAG
, &dsfrom
);
3844 rw_exit(&dp
->dp_config_rwlock
);
3845 spa_close(spa
, FTAG
);
3847 dsl_dataset_rele(ds
, FTAG
);
3850 error
= dmu_objset_from_ds(dsfrom
, &fromsnap
);
3852 dsl_dataset_rele(dsfrom
, FTAG
);
3853 dsl_dataset_rele(ds
, FTAG
);
3857 spa_close(spa
, FTAG
);
3860 fp
= getf(zc
->zc_cookie
);
3862 dsl_dataset_rele(ds
, FTAG
);
3864 dsl_dataset_rele(dsfrom
, FTAG
);
3869 error
= dmu_sendbackup(tosnap
, fromsnap
, zc
->zc_obj
, fp
->f_vnode
, &off
);
3871 if (VOP_SEEK(fp
->f_vnode
, fp
->f_offset
, &off
, NULL
) == 0)
3873 releasef(zc
->zc_cookie
);
3875 dsl_dataset_rele(dsfrom
, FTAG
);
3876 dsl_dataset_rele(ds
, FTAG
);
3881 zfs_ioc_inject_fault(zfs_cmd_t
*zc
)
3885 error
= zio_inject_fault(zc
->zc_name
, (int)zc
->zc_guid
, &id
,
3886 &zc
->zc_inject_record
);
3889 zc
->zc_guid
= (uint64_t)id
;
3895 zfs_ioc_clear_fault(zfs_cmd_t
*zc
)
3897 return (zio_clear_fault((int)zc
->zc_guid
));
3901 zfs_ioc_inject_list_next(zfs_cmd_t
*zc
)
3903 int id
= (int)zc
->zc_guid
;
3906 error
= zio_inject_list_next(&id
, zc
->zc_name
, sizeof (zc
->zc_name
),
3907 &zc
->zc_inject_record
);
3915 zfs_ioc_error_log(zfs_cmd_t
*zc
)
3919 size_t count
= (size_t)zc
->zc_nvlist_dst_size
;
3921 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
3924 error
= spa_get_errlog(spa
, (void *)(uintptr_t)zc
->zc_nvlist_dst
,
3927 zc
->zc_nvlist_dst_size
= count
;
3929 zc
->zc_nvlist_dst_size
= spa_get_errlog_size(spa
);
3931 spa_close(spa
, FTAG
);
3937 zfs_ioc_clear(zfs_cmd_t
*zc
)
3944 * On zpool clear we also fix up missing slogs
3946 mutex_enter(&spa_namespace_lock
);
3947 spa
= spa_lookup(zc
->zc_name
);
3949 mutex_exit(&spa_namespace_lock
);
3952 if (spa_get_log_state(spa
) == SPA_LOG_MISSING
) {
3953 /* we need to let spa_open/spa_load clear the chains */
3954 spa_set_log_state(spa
, SPA_LOG_CLEAR
);
3956 spa
->spa_last_open_failed
= 0;
3957 mutex_exit(&spa_namespace_lock
);
3959 if (zc
->zc_cookie
& ZPOOL_NO_REWIND
) {
3960 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
3963 nvlist_t
*config
= NULL
;
3965 if (zc
->zc_nvlist_src
== 0)
3968 if ((error
= get_nvlist(zc
->zc_nvlist_src
,
3969 zc
->zc_nvlist_src_size
, zc
->zc_iflags
, &policy
)) == 0) {
3970 error
= spa_open_rewind(zc
->zc_name
, &spa
, FTAG
,
3972 if (config
!= NULL
) {
3975 if ((err
= put_nvlist(zc
, config
)) != 0)
3977 nvlist_free(config
);
3979 nvlist_free(policy
);
3986 spa_vdev_state_enter(spa
, SCL_NONE
);
3988 if (zc
->zc_guid
== 0) {
3991 vd
= spa_lookup_by_guid(spa
, zc
->zc_guid
, B_TRUE
);
3993 (void) spa_vdev_state_exit(spa
, NULL
, ENODEV
);
3994 spa_close(spa
, FTAG
);
3999 vdev_clear(spa
, vd
);
4001 (void) spa_vdev_state_exit(spa
, NULL
, 0);
4004 * Resume any suspended I/Os.
4006 if (zio_resume(spa
) != 0)
4009 spa_close(spa
, FTAG
);
4016 * zc_name name of filesystem
4017 * zc_value name of origin snapshot
4020 * zc_string name of conflicting snapshot, if there is one
4023 zfs_ioc_promote(zfs_cmd_t
*zc
)
4028 * We don't need to unmount *all* the origin fs's snapshots, but
4031 cp
= strchr(zc
->zc_value
, '@');
4034 (void) dmu_objset_find(zc
->zc_value
,
4035 zfs_unmount_snap
, NULL
, DS_FIND_SNAPSHOTS
);
4036 return (dsl_dataset_promote(zc
->zc_name
, zc
->zc_string
));
4040 * Retrieve a single {user|group}{used|quota}@... property.
4043 * zc_name name of filesystem
4044 * zc_objset_type zfs_userquota_prop_t
4045 * zc_value domain name (eg. "S-1-234-567-89")
4046 * zc_guid RID/UID/GID
4049 * zc_cookie property value
4052 zfs_ioc_userspace_one(zfs_cmd_t
*zc
)
4057 if (zc
->zc_objset_type
>= ZFS_NUM_USERQUOTA_PROPS
)
4060 error
= zfs_sb_hold(zc
->zc_name
, FTAG
, &zsb
, B_FALSE
);
4064 error
= zfs_userspace_one(zsb
,
4065 zc
->zc_objset_type
, zc
->zc_value
, zc
->zc_guid
, &zc
->zc_cookie
);
4066 zfs_sb_rele(zsb
, FTAG
);
4073 * zc_name name of filesystem
4074 * zc_cookie zap cursor
4075 * zc_objset_type zfs_userquota_prop_t
4076 * zc_nvlist_dst[_size] buffer to fill (not really an nvlist)
4079 * zc_nvlist_dst[_size] data buffer (array of zfs_useracct_t)
4080 * zc_cookie zap cursor
4083 zfs_ioc_userspace_many(zfs_cmd_t
*zc
)
4086 int bufsize
= zc
->zc_nvlist_dst_size
;
4093 error
= zfs_sb_hold(zc
->zc_name
, FTAG
, &zsb
, B_FALSE
);
4097 buf
= kmem_alloc(bufsize
, KM_SLEEP
);
4099 error
= zfs_userspace_many(zsb
, zc
->zc_objset_type
, &zc
->zc_cookie
,
4100 buf
, &zc
->zc_nvlist_dst_size
);
4103 error
= xcopyout(buf
,
4104 (void *)(uintptr_t)zc
->zc_nvlist_dst
,
4105 zc
->zc_nvlist_dst_size
);
4107 kmem_free(buf
, bufsize
);
4108 zfs_sb_rele(zsb
, FTAG
);
4115 * zc_name name of filesystem
4121 zfs_ioc_userspace_upgrade(zfs_cmd_t
*zc
)
4127 if (get_zfs_sb(zc
->zc_name
, &zsb
) == 0) {
4128 if (!dmu_objset_userused_enabled(zsb
->z_os
)) {
4130 * If userused is not enabled, it may be because the
4131 * objset needs to be closed & reopened (to grow the
4132 * objset_phys_t). Suspend/resume the fs will do that.
4134 error
= zfs_suspend_fs(zsb
);
4136 error
= zfs_resume_fs(zsb
, zc
->zc_name
);
4139 error
= dmu_objset_userspace_upgrade(zsb
->z_os
);
4142 /* XXX kind of reading contents without owning */
4143 error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
);
4147 error
= dmu_objset_userspace_upgrade(os
);
4148 dmu_objset_rele(os
, FTAG
);
4155 * We don't want to have a hard dependency
4156 * against some special symbols in sharefs
4157 * nfs, and smbsrv. Determine them if needed when
4158 * the first file system is shared.
4159 * Neither sharefs, nfs or smbsrv are unloadable modules.
4162 int (*znfsexport_fs
)(void *arg
);
4163 int (*zshare_fs
)(enum sharefs_sys_op
, share_t
*, uint32_t);
4164 int (*zsmbexport_fs
)(void *arg
, boolean_t add_share
);
4166 int zfs_nfsshare_inited
;
4167 int zfs_smbshare_inited
;
4169 ddi_modhandle_t nfs_mod
;
4170 ddi_modhandle_t sharefs_mod
;
4171 ddi_modhandle_t smbsrv_mod
;
4172 kmutex_t zfs_share_lock
;
4179 ASSERT(MUTEX_HELD(&zfs_share_lock
));
4180 /* Both NFS and SMB shares also require sharetab support. */
4181 if (sharefs_mod
== NULL
&& ((sharefs_mod
=
4182 ddi_modopen("fs/sharefs",
4183 KRTLD_MODE_FIRST
, &error
)) == NULL
)) {
4186 if (zshare_fs
== NULL
&& ((zshare_fs
=
4187 (int (*)(enum sharefs_sys_op
, share_t
*, uint32_t))
4188 ddi_modsym(sharefs_mod
, "sharefs_impl", &error
)) == NULL
)) {
4193 #endif /* HAVE_SHARE */
4196 zfs_ioc_share(zfs_cmd_t
*zc
)
4202 switch (zc
->zc_share
.z_sharetype
) {
4204 case ZFS_UNSHARE_NFS
:
4205 if (zfs_nfsshare_inited
== 0) {
4206 mutex_enter(&zfs_share_lock
);
4207 if (nfs_mod
== NULL
&& ((nfs_mod
= ddi_modopen("fs/nfs",
4208 KRTLD_MODE_FIRST
, &error
)) == NULL
)) {
4209 mutex_exit(&zfs_share_lock
);
4212 if (znfsexport_fs
== NULL
&&
4213 ((znfsexport_fs
= (int (*)(void *))
4215 "nfs_export", &error
)) == NULL
)) {
4216 mutex_exit(&zfs_share_lock
);
4219 error
= zfs_init_sharefs();
4221 mutex_exit(&zfs_share_lock
);
4224 zfs_nfsshare_inited
= 1;
4225 mutex_exit(&zfs_share_lock
);
4229 case ZFS_UNSHARE_SMB
:
4230 if (zfs_smbshare_inited
== 0) {
4231 mutex_enter(&zfs_share_lock
);
4232 if (smbsrv_mod
== NULL
&& ((smbsrv_mod
=
4233 ddi_modopen("drv/smbsrv",
4234 KRTLD_MODE_FIRST
, &error
)) == NULL
)) {
4235 mutex_exit(&zfs_share_lock
);
4238 if (zsmbexport_fs
== NULL
&& ((zsmbexport_fs
=
4239 (int (*)(void *, boolean_t
))ddi_modsym(smbsrv_mod
,
4240 "smb_server_share", &error
)) == NULL
)) {
4241 mutex_exit(&zfs_share_lock
);
4244 error
= zfs_init_sharefs();
4246 mutex_exit(&zfs_share_lock
);
4249 zfs_smbshare_inited
= 1;
4250 mutex_exit(&zfs_share_lock
);
4257 switch (zc
->zc_share
.z_sharetype
) {
4259 case ZFS_UNSHARE_NFS
:
4261 znfsexport_fs((void *)
4262 (uintptr_t)zc
->zc_share
.z_exportdata
))
4266 case ZFS_UNSHARE_SMB
:
4267 if (error
= zsmbexport_fs((void *)
4268 (uintptr_t)zc
->zc_share
.z_exportdata
,
4269 zc
->zc_share
.z_sharetype
== ZFS_SHARE_SMB
?
4276 opcode
= (zc
->zc_share
.z_sharetype
== ZFS_SHARE_NFS
||
4277 zc
->zc_share
.z_sharetype
== ZFS_SHARE_SMB
) ?
4278 SHAREFS_ADD
: SHAREFS_REMOVE
;
4281 * Add or remove share from sharetab
4283 error
= zshare_fs(opcode
,
4284 (void *)(uintptr_t)zc
->zc_share
.z_sharedata
,
4285 zc
->zc_share
.z_sharemax
);
4290 #endif /* HAVE_SHARE */
4293 ace_t full_access
[] = {
4294 {(uid_t
)-1, ACE_ALL_PERMS
, ACE_EVERYONE
, 0}
4299 * zc_name name of containing filesystem
4300 * zc_obj object # beyond which we want next in-use object #
4303 * zc_obj next in-use object #
4306 zfs_ioc_next_obj(zfs_cmd_t
*zc
)
4308 objset_t
*os
= NULL
;
4311 error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
);
4315 error
= dmu_object_next(os
, &zc
->zc_obj
, B_FALSE
,
4316 os
->os_dsl_dataset
->ds_phys
->ds_prev_snap_txg
);
4318 dmu_objset_rele(os
, FTAG
);
4324 * zc_name name of filesystem
4325 * zc_value prefix name for snapshot
4326 * zc_cleanup_fd cleanup-on-exit file descriptor for calling process
4331 zfs_ioc_tmp_snapshot(zfs_cmd_t
*zc
)
4336 snap_name
= kmem_asprintf("%s-%016llx", zc
->zc_value
,
4337 (u_longlong_t
)ddi_get_lbolt64());
4339 if (strlen(snap_name
) >= MAXNAMELEN
) {
4344 error
= dmu_objset_snapshot(zc
->zc_name
, snap_name
, snap_name
,
4345 NULL
, B_FALSE
, B_TRUE
, zc
->zc_cleanup_fd
);
4351 (void) strcpy(zc
->zc_value
, snap_name
);
4358 * zc_name name of "to" snapshot
4359 * zc_value name of "from" snapshot
4360 * zc_cookie file descriptor to write diff data on
4363 * dmu_diff_record_t's to the file descriptor
4366 zfs_ioc_diff(zfs_cmd_t
*zc
)
4374 error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &tosnap
);
4378 error
= dmu_objset_hold(zc
->zc_value
, FTAG
, &fromsnap
);
4380 dmu_objset_rele(tosnap
, FTAG
);
4384 fp
= getf(zc
->zc_cookie
);
4386 dmu_objset_rele(fromsnap
, FTAG
);
4387 dmu_objset_rele(tosnap
, FTAG
);
4393 error
= dmu_diff(tosnap
, fromsnap
, fp
->f_vnode
, &off
);
4395 if (VOP_SEEK(fp
->f_vnode
, fp
->f_offset
, &off
, NULL
) == 0)
4397 releasef(zc
->zc_cookie
);
4399 dmu_objset_rele(fromsnap
, FTAG
);
4400 dmu_objset_rele(tosnap
, FTAG
);
4405 * Remove all ACL files in shares dir
4409 zfs_smb_acl_purge(znode_t
*dzp
)
4412 zap_attribute_t zap
;
4413 zfs_sb_t
*zsb
= ZTOZSB(dzp
);
4416 for (zap_cursor_init(&zc
, zsb
->z_os
, dzp
->z_id
);
4417 (error
= zap_cursor_retrieve(&zc
, &zap
)) == 0;
4418 zap_cursor_advance(&zc
)) {
4419 if ((error
= VOP_REMOVE(ZTOV(dzp
), zap
.za_name
, kcred
,
4423 zap_cursor_fini(&zc
);
4426 #endif /* HAVE SHARE */
4429 zfs_ioc_smb_acl(zfs_cmd_t
*zc
)
4434 vnode_t
*resourcevp
= NULL
;
4443 if ((error
= lookupname(zc
->zc_value
, UIO_SYSSPACE
,
4444 NO_FOLLOW
, NULL
, &vp
)) != 0)
4447 /* Now make sure mntpnt and dataset are ZFS */
4449 if (vp
->v_vfsp
->vfs_fstype
!= zfsfstype
||
4450 (strcmp((char *)refstr_value(vp
->v_vfsp
->vfs_resource
),
4451 zc
->zc_name
) != 0)) {
4461 * Create share dir if its missing.
4463 mutex_enter(&zsb
->z_lock
);
4464 if (zsb
->z_shares_dir
== 0) {
4467 tx
= dmu_tx_create(zsb
->z_os
);
4468 dmu_tx_hold_zap(tx
, MASTER_NODE_OBJ
, TRUE
,
4470 dmu_tx_hold_zap(tx
, DMU_NEW_OBJECT
, FALSE
, NULL
);
4471 error
= dmu_tx_assign(tx
, TXG_WAIT
);
4475 error
= zfs_create_share_dir(zsb
, tx
);
4479 mutex_exit(&zsb
->z_lock
);
4485 mutex_exit(&zsb
->z_lock
);
4487 ASSERT(zsb
->z_shares_dir
);
4488 if ((error
= zfs_zget(zsb
, zsb
->z_shares_dir
, &sharedir
)) != 0) {
4494 switch (zc
->zc_cookie
) {
4495 case ZFS_SMB_ACL_ADD
:
4496 vattr
.va_mask
= AT_MODE
|AT_UID
|AT_GID
|AT_TYPE
;
4497 vattr
.va_mode
= S_IFREG
|0777;
4501 vsec
.vsa_mask
= VSA_ACE
;
4502 vsec
.vsa_aclentp
= &full_access
;
4503 vsec
.vsa_aclentsz
= sizeof (full_access
);
4504 vsec
.vsa_aclcnt
= 1;
4506 error
= VOP_CREATE(ZTOV(sharedir
), zc
->zc_string
,
4507 &vattr
, EXCL
, 0, &resourcevp
, kcred
, 0, NULL
, &vsec
);
4509 VN_RELE(resourcevp
);
4512 case ZFS_SMB_ACL_REMOVE
:
4513 error
= VOP_REMOVE(ZTOV(sharedir
), zc
->zc_string
, kcred
,
4517 case ZFS_SMB_ACL_RENAME
:
4518 if ((error
= get_nvlist(zc
->zc_nvlist_src
,
4519 zc
->zc_nvlist_src_size
, zc
->zc_iflags
, &nvlist
)) != 0) {
4524 if (nvlist_lookup_string(nvlist
, ZFS_SMB_ACL_SRC
, &src
) ||
4525 nvlist_lookup_string(nvlist
, ZFS_SMB_ACL_TARGET
,
4528 VN_RELE(ZTOV(sharedir
));
4530 nvlist_free(nvlist
);
4533 error
= VOP_RENAME(ZTOV(sharedir
), src
, ZTOV(sharedir
), target
,
4535 nvlist_free(nvlist
);
4538 case ZFS_SMB_ACL_PURGE
:
4539 error
= zfs_smb_acl_purge(sharedir
);
4548 VN_RELE(ZTOV(sharedir
));
4555 #endif /* HAVE_SHARE */
4560 * zc_name name of filesystem
4561 * zc_value short name of snap
4562 * zc_string user-supplied tag for this hold
4563 * zc_cookie recursive flag
4564 * zc_temphold set if hold is temporary
4565 * zc_cleanup_fd cleanup-on-exit file descriptor for calling process
4566 * zc_sendobj if non-zero, the objid for zc_name@zc_value
4567 * zc_createtxg if zc_sendobj is non-zero, snap must have zc_createtxg
4572 zfs_ioc_hold(zfs_cmd_t
*zc
)
4574 boolean_t recursive
= zc
->zc_cookie
;
4581 if (snapshot_namecheck(zc
->zc_value
, NULL
, NULL
) != 0)
4584 if (zc
->zc_sendobj
== 0) {
4585 return (dsl_dataset_user_hold(zc
->zc_name
, zc
->zc_value
,
4586 zc
->zc_string
, recursive
, zc
->zc_temphold
,
4587 zc
->zc_cleanup_fd
));
4593 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
4597 dp
= spa_get_dsl(spa
);
4598 rw_enter(&dp
->dp_config_rwlock
, RW_READER
);
4599 error
= dsl_dataset_hold_obj(dp
, zc
->zc_sendobj
, FTAG
, &ds
);
4600 rw_exit(&dp
->dp_config_rwlock
);
4601 spa_close(spa
, FTAG
);
4606 * Until we have a hold on this snapshot, it's possible that
4607 * zc_sendobj could've been destroyed and reused as part
4608 * of a later txg. Make sure we're looking at the right object.
4610 if (zc
->zc_createtxg
!= ds
->ds_phys
->ds_creation_txg
) {
4611 dsl_dataset_rele(ds
, FTAG
);
4615 if (zc
->zc_cleanup_fd
!= -1 && zc
->zc_temphold
) {
4616 error
= zfs_onexit_fd_hold(zc
->zc_cleanup_fd
, &minor
);
4618 dsl_dataset_rele(ds
, FTAG
);
4623 error
= dsl_dataset_user_hold_for_send(ds
, zc
->zc_string
,
4627 dsl_register_onexit_hold_cleanup(ds
, zc
->zc_string
,
4630 zfs_onexit_fd_rele(zc
->zc_cleanup_fd
);
4632 dsl_dataset_rele(ds
, FTAG
);
4639 * zc_name name of dataset from which we're releasing a user hold
4640 * zc_value short name of snap
4641 * zc_string user-supplied tag for this hold
4642 * zc_cookie recursive flag
4647 zfs_ioc_release(zfs_cmd_t
*zc
)
4649 boolean_t recursive
= zc
->zc_cookie
;
4651 if (snapshot_namecheck(zc
->zc_value
, NULL
, NULL
) != 0)
4654 return (dsl_dataset_user_release(zc
->zc_name
, zc
->zc_value
,
4655 zc
->zc_string
, recursive
));
4660 * zc_name name of filesystem
4663 * zc_nvlist_src{_size} nvlist of snapshot holds
4666 zfs_ioc_get_holds(zfs_cmd_t
*zc
)
4671 if ((error
= dsl_dataset_get_holds(zc
->zc_name
, &nvp
)) == 0) {
4672 error
= put_nvlist(zc
, nvp
);
4681 * zc_guid flags (ZEVENT_NONBLOCK)
4684 * zc_nvlist_dst next nvlist event
4685 * zc_cookie dropped events since last get
4686 * zc_cleanup_fd cleanup-on-exit file descriptor
4689 zfs_ioc_events_next(zfs_cmd_t
*zc
)
4692 nvlist_t
*event
= NULL
;
4694 uint64_t dropped
= 0;
4697 error
= zfs_zevent_fd_hold(zc
->zc_cleanup_fd
, &minor
, &ze
);
4702 error
= zfs_zevent_next(ze
, &event
,
4703 &zc
->zc_nvlist_dst_size
, &dropped
);
4704 if (event
!= NULL
) {
4705 zc
->zc_cookie
= dropped
;
4706 error
= put_nvlist(zc
, event
);
4710 if (zc
->zc_guid
& ZEVENT_NONBLOCK
)
4713 if ((error
== 0) || (error
!= ENOENT
))
4716 error
= zfs_zevent_wait(ze
);
4721 zfs_zevent_fd_rele(zc
->zc_cleanup_fd
);
4728 * zc_cookie cleared events count
4731 zfs_ioc_events_clear(zfs_cmd_t
*zc
)
4735 zfs_zevent_drain_all(&count
);
4736 zc
->zc_cookie
= count
;
4742 * pool create, destroy, and export don't log the history as part of
4743 * zfsdev_ioctl, but rather zfs_ioc_pool_create, and zfs_ioc_pool_export
4744 * do the logging of those commands.
4746 static zfs_ioc_vec_t zfs_ioc_vec
[] = {
4747 { zfs_ioc_pool_create
, zfs_secpolicy_config
, POOL_NAME
, B_FALSE
,
4749 { zfs_ioc_pool_destroy
, zfs_secpolicy_config
, POOL_NAME
, B_FALSE
,
4751 { zfs_ioc_pool_import
, zfs_secpolicy_config
, POOL_NAME
, B_TRUE
,
4753 { zfs_ioc_pool_export
, zfs_secpolicy_config
, POOL_NAME
, B_FALSE
,
4755 { zfs_ioc_pool_configs
, zfs_secpolicy_none
, NO_NAME
, B_FALSE
,
4757 { zfs_ioc_pool_stats
, zfs_secpolicy_read
, POOL_NAME
, B_FALSE
,
4759 { zfs_ioc_pool_tryimport
, zfs_secpolicy_config
, NO_NAME
, B_FALSE
,
4761 { zfs_ioc_pool_scan
, zfs_secpolicy_config
, POOL_NAME
, B_TRUE
,
4762 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4763 { zfs_ioc_pool_freeze
, zfs_secpolicy_config
, NO_NAME
, B_FALSE
,
4764 POOL_CHECK_READONLY
},
4765 { zfs_ioc_pool_upgrade
, zfs_secpolicy_config
, POOL_NAME
, B_TRUE
,
4766 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4767 { zfs_ioc_pool_get_history
, zfs_secpolicy_config
, POOL_NAME
, B_FALSE
,
4769 { zfs_ioc_vdev_add
, zfs_secpolicy_config
, POOL_NAME
, B_TRUE
,
4770 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4771 { zfs_ioc_vdev_remove
, zfs_secpolicy_config
, POOL_NAME
, B_TRUE
,
4772 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4773 { zfs_ioc_vdev_set_state
, zfs_secpolicy_config
, POOL_NAME
, B_TRUE
,
4774 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4775 { zfs_ioc_vdev_attach
, zfs_secpolicy_config
, POOL_NAME
, B_TRUE
,
4776 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4777 { zfs_ioc_vdev_detach
, zfs_secpolicy_config
, POOL_NAME
, B_TRUE
,
4778 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4779 { zfs_ioc_vdev_setpath
, zfs_secpolicy_config
, POOL_NAME
, B_FALSE
,
4780 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4781 { zfs_ioc_vdev_setfru
, zfs_secpolicy_config
, POOL_NAME
, B_FALSE
,
4782 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4783 { zfs_ioc_objset_stats
, zfs_secpolicy_read
, DATASET_NAME
, B_FALSE
,
4784 POOL_CHECK_SUSPENDED
},
4785 { zfs_ioc_objset_zplprops
, zfs_secpolicy_read
, DATASET_NAME
, B_FALSE
,
4787 { zfs_ioc_dataset_list_next
, zfs_secpolicy_read
, DATASET_NAME
, B_FALSE
,
4788 POOL_CHECK_SUSPENDED
},
4789 { zfs_ioc_snapshot_list_next
, zfs_secpolicy_read
, DATASET_NAME
, B_FALSE
,
4790 POOL_CHECK_SUSPENDED
},
4791 { zfs_ioc_set_prop
, zfs_secpolicy_none
, DATASET_NAME
, B_TRUE
,
4792 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4793 { zfs_ioc_create_minor
, zfs_secpolicy_config
, DATASET_NAME
, B_FALSE
,
4795 { zfs_ioc_remove_minor
, zfs_secpolicy_config
, DATASET_NAME
, B_FALSE
,
4797 { zfs_ioc_create
, zfs_secpolicy_create
, DATASET_NAME
, B_TRUE
,
4798 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4799 { zfs_ioc_destroy
, zfs_secpolicy_destroy
, DATASET_NAME
, B_TRUE
,
4800 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4801 { zfs_ioc_rollback
, zfs_secpolicy_rollback
, DATASET_NAME
, B_TRUE
,
4802 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4803 { zfs_ioc_rename
, zfs_secpolicy_rename
, DATASET_NAME
, B_TRUE
,
4804 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4805 { zfs_ioc_recv
, zfs_secpolicy_receive
, DATASET_NAME
, B_TRUE
,
4806 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4807 { zfs_ioc_send
, zfs_secpolicy_send
, DATASET_NAME
, B_TRUE
,
4809 { zfs_ioc_inject_fault
, zfs_secpolicy_inject
, NO_NAME
, B_FALSE
,
4811 { zfs_ioc_clear_fault
, zfs_secpolicy_inject
, NO_NAME
, B_FALSE
,
4813 { zfs_ioc_inject_list_next
, zfs_secpolicy_inject
, NO_NAME
, B_FALSE
,
4815 { zfs_ioc_error_log
, zfs_secpolicy_inject
, POOL_NAME
, B_FALSE
,
4817 { zfs_ioc_clear
, zfs_secpolicy_config
, POOL_NAME
, B_TRUE
,
4819 { zfs_ioc_promote
, zfs_secpolicy_promote
, DATASET_NAME
, B_TRUE
,
4820 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4821 { zfs_ioc_destroy_snaps
, zfs_secpolicy_destroy_snaps
, DATASET_NAME
,
4822 B_TRUE
, POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4823 { zfs_ioc_snapshot
, zfs_secpolicy_snapshot
, DATASET_NAME
, B_TRUE
,
4824 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4825 { zfs_ioc_dsobj_to_dsname
, zfs_secpolicy_diff
, POOL_NAME
, B_FALSE
,
4827 { zfs_ioc_obj_to_path
, zfs_secpolicy_diff
, DATASET_NAME
, B_FALSE
,
4828 POOL_CHECK_SUSPENDED
},
4829 { zfs_ioc_pool_set_props
, zfs_secpolicy_config
, POOL_NAME
, B_TRUE
,
4830 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4831 { zfs_ioc_pool_get_props
, zfs_secpolicy_read
, POOL_NAME
, B_FALSE
,
4833 { zfs_ioc_set_fsacl
, zfs_secpolicy_fsacl
, DATASET_NAME
, B_TRUE
,
4834 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4835 { zfs_ioc_get_fsacl
, zfs_secpolicy_read
, DATASET_NAME
, B_FALSE
,
4837 { zfs_ioc_share
, zfs_secpolicy_share
, DATASET_NAME
, B_FALSE
,
4839 { zfs_ioc_inherit_prop
, zfs_secpolicy_inherit
, DATASET_NAME
, B_TRUE
,
4840 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4841 { zfs_ioc_smb_acl
, zfs_secpolicy_smb_acl
, DATASET_NAME
, B_FALSE
,
4843 { zfs_ioc_userspace_one
, zfs_secpolicy_userspace_one
, DATASET_NAME
,
4844 B_FALSE
, POOL_CHECK_NONE
},
4845 { zfs_ioc_userspace_many
, zfs_secpolicy_userspace_many
, DATASET_NAME
,
4846 B_FALSE
, POOL_CHECK_NONE
},
4847 { zfs_ioc_userspace_upgrade
, zfs_secpolicy_userspace_upgrade
,
4848 DATASET_NAME
, B_FALSE
, POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4849 { zfs_ioc_hold
, zfs_secpolicy_hold
, DATASET_NAME
, B_TRUE
,
4850 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4851 { zfs_ioc_release
, zfs_secpolicy_release
, DATASET_NAME
, B_TRUE
,
4852 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4853 { zfs_ioc_get_holds
, zfs_secpolicy_read
, DATASET_NAME
, B_FALSE
,
4854 POOL_CHECK_SUSPENDED
},
4855 { zfs_ioc_objset_recvd_props
, zfs_secpolicy_read
, DATASET_NAME
, B_FALSE
,
4857 { zfs_ioc_vdev_split
, zfs_secpolicy_config
, POOL_NAME
, B_TRUE
,
4858 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4859 { zfs_ioc_next_obj
, zfs_secpolicy_read
, DATASET_NAME
, B_FALSE
,
4861 { zfs_ioc_diff
, zfs_secpolicy_diff
, DATASET_NAME
, B_FALSE
,
4863 { zfs_ioc_tmp_snapshot
, zfs_secpolicy_tmp_snapshot
, DATASET_NAME
,
4864 B_FALSE
, POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
},
4865 { zfs_ioc_obj_to_stats
, zfs_secpolicy_diff
, DATASET_NAME
, B_FALSE
,
4866 POOL_CHECK_SUSPENDED
},
4867 { zfs_ioc_events_next
, zfs_secpolicy_config
, NO_NAME
, B_FALSE
,
4869 { zfs_ioc_events_clear
, zfs_secpolicy_config
, NO_NAME
, B_FALSE
,
4874 pool_status_check(const char *name
, zfs_ioc_namecheck_t type
,
4875 zfs_ioc_poolcheck_t check
)
4880 ASSERT(type
== POOL_NAME
|| type
== DATASET_NAME
);
4882 if (check
& POOL_CHECK_NONE
)
4885 error
= spa_open(name
, &spa
, FTAG
);
4887 if ((check
& POOL_CHECK_SUSPENDED
) && spa_suspended(spa
))
4889 else if ((check
& POOL_CHECK_READONLY
) && !spa_writeable(spa
))
4891 spa_close(spa
, FTAG
);
4897 zfsdev_get_state_impl(minor_t minor
, enum zfsdev_state_type which
)
4901 ASSERT(MUTEX_HELD(&zfsdev_state_lock
));
4903 for (zs
= list_head(&zfsdev_state_list
); zs
!= NULL
;
4904 zs
= list_next(&zfsdev_state_list
, zs
)) {
4905 if (zs
->zs_minor
== minor
) {
4907 case ZST_ONEXIT
: return (zs
->zs_onexit
);
4908 case ZST_ZEVENT
: return (zs
->zs_zevent
);
4909 case ZST_ALL
: return (zs
);
4918 zfsdev_get_state(minor_t minor
, enum zfsdev_state_type which
)
4922 mutex_enter(&zfsdev_state_lock
);
4923 ptr
= zfsdev_get_state_impl(minor
, which
);
4924 mutex_exit(&zfsdev_state_lock
);
4930 zfsdev_getminor(struct file
*filp
)
4932 ASSERT(filp
!= NULL
);
4933 ASSERT(filp
->private_data
!= NULL
);
4935 return (((zfsdev_state_t
*)filp
->private_data
)->zs_minor
);
4939 * Find a free minor number. The zfsdev_state_list is expected to
4940 * be short since it is only a list of currently open file handles.
4943 zfsdev_minor_alloc(void)
4945 static minor_t last_minor
= 0;
4948 ASSERT(MUTEX_HELD(&zfsdev_state_lock
));
4950 for (m
= last_minor
+ 1; m
!= last_minor
; m
++) {
4951 if (m
> ZFSDEV_MAX_MINOR
)
4953 if (zfsdev_get_state_impl(m
, ZST_ALL
) == NULL
) {
4963 zfsdev_state_init(struct file
*filp
)
4968 ASSERT(MUTEX_HELD(&zfsdev_state_lock
));
4970 minor
= zfsdev_minor_alloc();
4974 zs
= kmem_zalloc( sizeof(zfsdev_state_t
), KM_SLEEP
);
4979 zs
->zs_minor
= minor
;
4980 filp
->private_data
= zs
;
4982 zfs_onexit_init((zfs_onexit_t
**)&zs
->zs_onexit
);
4983 zfs_zevent_init((zfs_zevent_t
**)&zs
->zs_zevent
);
4985 list_insert_tail(&zfsdev_state_list
, zs
);
4991 zfsdev_state_destroy(struct file
*filp
)
4995 ASSERT(MUTEX_HELD(&zfsdev_state_lock
));
4996 ASSERT(filp
->private_data
!= NULL
);
4998 zs
= filp
->private_data
;
4999 zfs_onexit_destroy(zs
->zs_onexit
);
5000 zfs_zevent_destroy(zs
->zs_zevent
);
5002 list_remove(&zfsdev_state_list
, zs
);
5003 kmem_free(zs
, sizeof(zfsdev_state_t
));
5009 zfsdev_open(struct inode
*ino
, struct file
*filp
)
5013 mutex_enter(&zfsdev_state_lock
);
5014 error
= zfsdev_state_init(filp
);
5015 mutex_exit(&zfsdev_state_lock
);
5021 zfsdev_release(struct inode
*ino
, struct file
*filp
)
5025 mutex_enter(&zfsdev_state_lock
);
5026 error
= zfsdev_state_destroy(filp
);
5027 mutex_exit(&zfsdev_state_lock
);
5033 zfsdev_ioctl(struct file
*filp
, unsigned cmd
, unsigned long arg
)
5037 int error
, rc
, flag
= 0;
5039 vec
= cmd
- ZFS_IOC
;
5040 if (vec
>= sizeof (zfs_ioc_vec
) / sizeof (zfs_ioc_vec
[0]))
5043 zc
= kmem_zalloc(sizeof (zfs_cmd_t
), KM_SLEEP
| KM_NODEBUG
);
5045 error
= ddi_copyin((void *)arg
, zc
, sizeof (zfs_cmd_t
), flag
);
5049 if ((error
== 0) && !(flag
& FKIOCTL
))
5050 error
= zfs_ioc_vec
[vec
].zvec_secpolicy(zc
, NULL
);
5053 * Ensure that all pool/dataset names are valid before we pass down to
5057 zc
->zc_name
[sizeof (zc
->zc_name
) - 1] = '\0';
5058 zc
->zc_iflags
= flag
& FKIOCTL
;
5059 switch (zfs_ioc_vec
[vec
].zvec_namecheck
) {
5061 if (pool_namecheck(zc
->zc_name
, NULL
, NULL
) != 0)
5063 error
= pool_status_check(zc
->zc_name
,
5064 zfs_ioc_vec
[vec
].zvec_namecheck
,
5065 zfs_ioc_vec
[vec
].zvec_pool_check
);
5069 if (dataset_namecheck(zc
->zc_name
, NULL
, NULL
) != 0)
5071 error
= pool_status_check(zc
->zc_name
,
5072 zfs_ioc_vec
[vec
].zvec_namecheck
,
5073 zfs_ioc_vec
[vec
].zvec_pool_check
);
5082 error
= zfs_ioc_vec
[vec
].zvec_func(zc
);
5084 rc
= ddi_copyout(zc
, (void *)arg
, sizeof (zfs_cmd_t
), flag
);
5088 if (zfs_ioc_vec
[vec
].zvec_his_log
)
5089 zfs_log_history(zc
);
5092 kmem_free(zc
, sizeof (zfs_cmd_t
));
5096 #ifdef CONFIG_COMPAT
5098 zfsdev_compat_ioctl(struct file
*filp
, unsigned cmd
, unsigned long arg
)
5100 return zfsdev_ioctl(filp
, cmd
, arg
);
5103 #define zfsdev_compat_ioctl NULL
5106 static const struct file_operations zfsdev_fops
= {
5107 .open
= zfsdev_open
,
5108 .release
= zfsdev_release
,
5109 .unlocked_ioctl
= zfsdev_ioctl
,
5110 .compat_ioctl
= zfsdev_compat_ioctl
,
5111 .owner
= THIS_MODULE
,
5114 static struct miscdevice zfs_misc
= {
5115 .minor
= MISC_DYNAMIC_MINOR
,
5117 .fops
= &zfsdev_fops
,
5125 mutex_init(&zfsdev_state_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
5126 list_create(&zfsdev_state_list
, sizeof (zfsdev_state_t
),
5127 offsetof(zfsdev_state_t
, zs_next
));
5129 error
= misc_register(&zfs_misc
);
5131 printk(KERN_INFO
"ZFS: misc_register() failed %d\n", error
);
5143 error
= misc_deregister(&zfs_misc
);
5145 printk(KERN_INFO
"ZFS: misc_deregister() failed %d\n", error
);
5147 mutex_destroy(&zfsdev_state_lock
);
5148 list_destroy(&zfsdev_state_list
);
5151 uint_t zfs_fsyncer_key
;
5152 extern uint_t rrw_tsd_key
;
5155 #define ZFS_DEBUG_STR " (DEBUG mode)"
5157 #define ZFS_DEBUG_STR ""
5165 spa_init(FREAD
| FWRITE
);
5168 if ((error
= zvol_init()) != 0)
5171 if ((error
= zfs_attach()) != 0)
5174 tsd_create(&zfs_fsyncer_key
, NULL
);
5175 tsd_create(&rrw_tsd_key
, NULL
);
5178 mutex_init(&zfs_share_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
5179 #endif /* HAVE_SHARE */
5181 printk(KERN_NOTICE
"ZFS: Loaded module v%s%s, "
5182 "ZFS pool version %s, ZFS filesystem version %s\n",
5183 ZFS_META_VERSION
, ZFS_DEBUG_STR
,
5184 SPA_VERSION_STRING
, ZPL_VERSION_STRING
);
5193 printk(KERN_NOTICE
"ZFS: Failed to Load ZFS Filesystem v%s%s"
5194 ", rc = %d\n", ZFS_META_VERSION
, ZFS_DEBUG_STR
, error
);
5207 if (zfs_nfsshare_inited
)
5208 (void) ddi_modclose(nfs_mod
);
5209 if (zfs_smbshare_inited
)
5210 (void) ddi_modclose(smbsrv_mod
);
5211 if (zfs_nfsshare_inited
|| zfs_smbshare_inited
)
5212 (void) ddi_modclose(sharefs_mod
);
5214 mutex_destroy(&zfs_share_lock
);
5215 #endif /* HAVE_SHARE */
5216 tsd_destroy(&zfs_fsyncer_key
);
5217 tsd_destroy(&rrw_tsd_key
);
5219 printk(KERN_NOTICE
"ZFS: Unloaded module v%s%s\n",
5220 ZFS_META_VERSION
, ZFS_DEBUG_STR
);
5226 spl_module_init(_init
);
5227 spl_module_exit(_fini
);
5229 MODULE_DESCRIPTION("ZFS");
5230 MODULE_AUTHOR(ZFS_META_AUTHOR
);
5231 MODULE_LICENSE(ZFS_META_LICENSE
);
5232 #endif /* HAVE_SPL */