4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Copyright (c) 2011-2012 Pawel Jakub Dawidek. All rights reserved.
25 * Portions Copyright 2011 Martin Matuska
26 * Copyright 2015, OmniTI Computer Consulting, Inc. All rights reserved.
27 * Copyright 2015 Nexenta Systems, Inc. All rights reserved.
28 * Copyright (c) 2014, 2016 Joyent, Inc. All rights reserved.
29 * Copyright (c) 2011, 2015 by Delphix. All rights reserved.
30 * Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
31 * Copyright (c) 2013 Steven Hartland. All rights reserved.
32 * Copyright (c) 2014 Integros [integros.com]
33 * Copyright 2016 Toomas Soome <tsoome@me.com>
39 * This file handles the ioctls to /dev/zfs, used for configuring ZFS storage
40 * pools and filesystems, e.g. with /sbin/zfs and /sbin/zpool.
42 * There are two ways that we handle ioctls: the legacy way where almost
43 * all of the logic is in the ioctl callback, and the new way where most
44 * of the marshalling is handled in the common entry point, zfsdev_ioctl().
46 * Non-legacy ioctls should be registered by calling
47 * zfs_ioctl_register() from zfs_ioctl_init(). The ioctl is invoked
48 * from userland by lzc_ioctl().
50 * The registration arguments are as follows:
53 * The name of the ioctl. This is used for history logging. If the
54 * ioctl returns successfully (the callback returns 0), and allow_log
55 * is true, then a history log entry will be recorded with the input &
56 * output nvlists. The log entry can be printed with "zpool history -i".
59 * The ioctl request number, which userland will pass to ioctl(2).
60 * The ioctl numbers can change from release to release, because
61 * the caller (libzfs) must be matched to the kernel.
63 * zfs_secpolicy_func_t *secpolicy
64 * This function will be called before the zfs_ioc_func_t, to
65 * determine if this operation is permitted. It should return EPERM
66 * on failure, and 0 on success. Checks include determining if the
67 * dataset is visible in this zone, and if the user has either all
68 * zfs privileges in the zone (SYS_MOUNT), or has been granted permission
69 * to do this operation on this dataset with "zfs allow".
71 * zfs_ioc_namecheck_t namecheck
72 * This specifies what to expect in the zfs_cmd_t:zc_name -- a pool
73 * name, a dataset name, or nothing. If the name is not well-formed,
74 * the ioctl will fail and the callback will not be called.
75 * Therefore, the callback can assume that the name is well-formed
76 * (e.g. is null-terminated, doesn't have more than one '@' character,
77 * doesn't have invalid characters).
79 * zfs_ioc_poolcheck_t pool_check
80 * This specifies requirements on the pool state. If the pool does
81 * not meet them (is suspended or is readonly), the ioctl will fail
82 * and the callback will not be called. If any checks are specified
83 * (i.e. it is not POOL_CHECK_NONE), namecheck must not be NO_NAME.
84 * Multiple checks can be or-ed together (e.g. POOL_CHECK_SUSPENDED |
85 * POOL_CHECK_READONLY).
87 * boolean_t smush_outnvlist
88 * If smush_outnvlist is true, then the output is presumed to be a
89 * list of errors, and it will be "smushed" down to fit into the
90 * caller's buffer, by removing some entries and replacing them with a
91 * single "N_MORE_ERRORS" entry indicating how many were removed. See
92 * nvlist_smush() for details. If smush_outnvlist is false, and the
93 * outnvlist does not fit into the userland-provided buffer, then the
94 * ioctl will fail with ENOMEM.
96 * zfs_ioc_func_t *func
97 * The callback function that will perform the operation.
99 * The callback should return 0 on success, or an error number on
100 * failure. If the function fails, the userland ioctl will return -1,
101 * and errno will be set to the callback's return value. The callback
102 * will be called with the following arguments:
105 * The name of the pool or dataset to operate on, from
106 * zfs_cmd_t:zc_name. The 'namecheck' argument specifies the
107 * expected type (pool, dataset, or none).
110 * The input nvlist, deserialized from zfs_cmd_t:zc_nvlist_src. Or
111 * NULL if no input nvlist was provided. Changes to this nvlist are
112 * ignored. If the input nvlist could not be deserialized, the
113 * ioctl will fail and the callback will not be called.
116 * The output nvlist, initially empty. The callback can fill it in,
117 * and it will be returned to userland by serializing it into
118 * zfs_cmd_t:zc_nvlist_dst. If it is non-empty, and serialization
119 * fails (e.g. because the caller didn't supply a large enough
120 * buffer), then the overall ioctl will fail. See the
121 * 'smush_nvlist' argument above for additional behaviors.
123 * There are two typical uses of the output nvlist:
124 * - To return state, e.g. property values. In this case,
125 * smush_outnvlist should be false. If the buffer was not large
126 * enough, the caller will reallocate a larger buffer and try
129 * - To return multiple errors from an ioctl which makes on-disk
130 * changes. In this case, smush_outnvlist should be true.
131 * Ioctls which make on-disk modifications should generally not
132 * use the outnvl if they succeed, because the caller can not
133 * distinguish between the operation failing, and
134 * deserialization failing.
137 #include <sys/types.h>
138 #include <sys/param.h>
139 #include <sys/errno.h>
142 #include <sys/modctl.h>
143 #include <sys/open.h>
144 #include <sys/file.h>
145 #include <sys/kmem.h>
146 #include <sys/conf.h>
147 #include <sys/cmn_err.h>
148 #include <sys/stat.h>
149 #include <sys/zfs_ioctl.h>
150 #include <sys/zfs_vfsops.h>
151 #include <sys/zfs_znode.h>
154 #include <sys/spa_impl.h>
155 #include <sys/vdev.h>
156 #include <sys/priv_impl.h>
158 #include <sys/dsl_dir.h>
159 #include <sys/dsl_dataset.h>
160 #include <sys/dsl_prop.h>
161 #include <sys/dsl_deleg.h>
162 #include <sys/dmu_objset.h>
163 #include <sys/dmu_impl.h>
164 #include <sys/dmu_tx.h>
166 #include <sys/sunddi.h>
167 #include <sys/sunldi.h>
168 #include <sys/policy.h>
169 #include <sys/zone.h>
170 #include <sys/nvpair.h>
171 #include <sys/pathname.h>
172 #include <sys/mount.h>
174 #include <sys/fs/zfs.h>
175 #include <sys/zfs_ctldir.h>
176 #include <sys/zfs_dir.h>
177 #include <sys/zfs_onexit.h>
178 #include <sys/zvol.h>
179 #include <sys/dsl_scan.h>
180 #include <sharefs/share.h>
181 #include <sys/dmu_objset.h>
182 #include <sys/dmu_send.h>
183 #include <sys/dsl_destroy.h>
184 #include <sys/dsl_bookmark.h>
185 #include <sys/dsl_userhold.h>
186 #include <sys/zfeature.h>
187 #include <sys/zio_checksum.h>
189 #include "zfs_namecheck.h"
190 #include "zfs_prop.h"
191 #include "zfs_deleg.h"
192 #include "zfs_comutil.h"
194 extern struct modlfs zfs_modlfs
;
196 extern void zfs_init(void);
197 extern void zfs_fini(void);
199 ldi_ident_t zfs_li
= NULL
;
202 uint_t zfs_fsyncer_key
;
203 extern uint_t rrw_tsd_key
;
204 static uint_t zfs_allow_log_key
;
206 typedef int zfs_ioc_legacy_func_t(zfs_cmd_t
*);
207 typedef int zfs_ioc_func_t(const char *, nvlist_t
*, nvlist_t
*);
208 typedef int zfs_secpolicy_func_t(zfs_cmd_t
*, nvlist_t
*, cred_t
*);
214 } zfs_ioc_namecheck_t
;
217 POOL_CHECK_NONE
= 1 << 0,
218 POOL_CHECK_SUSPENDED
= 1 << 1,
219 POOL_CHECK_READONLY
= 1 << 2,
220 } zfs_ioc_poolcheck_t
;
222 typedef struct zfs_ioc_vec
{
223 zfs_ioc_legacy_func_t
*zvec_legacy_func
;
224 zfs_ioc_func_t
*zvec_func
;
225 zfs_secpolicy_func_t
*zvec_secpolicy
;
226 zfs_ioc_namecheck_t zvec_namecheck
;
227 boolean_t zvec_allow_log
;
228 zfs_ioc_poolcheck_t zvec_pool_check
;
229 boolean_t zvec_smush_outnvlist
;
230 const char *zvec_name
;
233 /* This array is indexed by zfs_userquota_prop_t */
234 static const char *userquota_perms
[] = {
235 ZFS_DELEG_PERM_USERUSED
,
236 ZFS_DELEG_PERM_USERQUOTA
,
237 ZFS_DELEG_PERM_GROUPUSED
,
238 ZFS_DELEG_PERM_GROUPQUOTA
,
241 static int zfs_ioc_userspace_upgrade(zfs_cmd_t
*zc
);
242 static int zfs_check_settable(const char *name
, nvpair_t
*property
,
244 static int zfs_check_clearable(char *dataset
, nvlist_t
*props
,
246 static int zfs_fill_zplprops_root(uint64_t, nvlist_t
*, nvlist_t
*,
248 int zfs_set_prop_nvlist(const char *, zprop_source_t
, nvlist_t
*, nvlist_t
*);
249 static int get_nvlist(uint64_t nvl
, uint64_t size
, int iflag
, nvlist_t
**nvp
);
251 static int zfs_prop_activate_feature(spa_t
*spa
, spa_feature_t feature
);
253 /* _NOTE(PRINTFLIKE(4)) - this is printf-like, but lint is too whiney */
255 __dprintf(const char *file
, const char *func
, int line
, const char *fmt
, ...)
262 * Get rid of annoying "../common/" prefix to filename.
264 newfile
= strrchr(file
, '/');
265 if (newfile
!= NULL
) {
266 newfile
= newfile
+ 1; /* Get rid of leading / */
272 (void) vsnprintf(buf
, sizeof (buf
), fmt
, adx
);
276 * To get this data, use the zfs-dprintf probe as so:
277 * dtrace -q -n 'zfs-dprintf \
278 * /stringof(arg0) == "dbuf.c"/ \
279 * {printf("%s: %s", stringof(arg1), stringof(arg3))}'
281 * arg1 = function name
285 DTRACE_PROBE4(zfs__dprintf
,
286 char *, newfile
, char *, func
, int, line
, char *, buf
);
290 history_str_free(char *buf
)
292 kmem_free(buf
, HIS_MAX_RECORD_LEN
);
296 history_str_get(zfs_cmd_t
*zc
)
300 if (zc
->zc_history
== NULL
)
303 buf
= kmem_alloc(HIS_MAX_RECORD_LEN
, KM_SLEEP
);
304 if (copyinstr((void *)(uintptr_t)zc
->zc_history
,
305 buf
, HIS_MAX_RECORD_LEN
, NULL
) != 0) {
306 history_str_free(buf
);
310 buf
[HIS_MAX_RECORD_LEN
-1] = '\0';
316 * Check to see if the named dataset is currently defined as bootable
319 zfs_is_bootfs(const char *name
)
323 if (dmu_objset_hold(name
, FTAG
, &os
) == 0) {
325 ret
= (dmu_objset_id(os
) == spa_bootfs(dmu_objset_spa(os
)));
326 dmu_objset_rele(os
, FTAG
);
333 * Return non-zero if the spa version is less than requested version.
336 zfs_earlier_version(const char *name
, int version
)
340 if (spa_open(name
, &spa
, FTAG
) == 0) {
341 if (spa_version(spa
) < version
) {
342 spa_close(spa
, FTAG
);
345 spa_close(spa
, FTAG
);
351 * Return TRUE if the ZPL version is less than requested version.
354 zpl_earlier_version(const char *name
, int version
)
357 boolean_t rc
= B_TRUE
;
359 if (dmu_objset_hold(name
, FTAG
, &os
) == 0) {
362 if (dmu_objset_type(os
) != DMU_OST_ZFS
) {
363 dmu_objset_rele(os
, FTAG
);
366 /* XXX reading from non-owned objset */
367 if (zfs_get_zplprop(os
, ZFS_PROP_VERSION
, &zplversion
) == 0)
368 rc
= zplversion
< version
;
369 dmu_objset_rele(os
, FTAG
);
375 zfs_log_history(zfs_cmd_t
*zc
)
380 if ((buf
= history_str_get(zc
)) == NULL
)
383 if (spa_open(zc
->zc_name
, &spa
, FTAG
) == 0) {
384 if (spa_version(spa
) >= SPA_VERSION_ZPOOL_HISTORY
)
385 (void) spa_history_log(spa
, buf
);
386 spa_close(spa
, FTAG
);
388 history_str_free(buf
);
392 * Policy for top-level read operations (list pools). Requires no privileges,
393 * and can be used in the local zone, as there is no associated dataset.
397 zfs_secpolicy_none(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
403 * Policy for dataset read operations (list children, get statistics). Requires
404 * no privileges, but must be visible in the local zone.
408 zfs_secpolicy_read(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
410 if (INGLOBALZONE(curproc
) ||
411 zone_dataset_visible(zc
->zc_name
, NULL
))
414 return (SET_ERROR(ENOENT
));
418 zfs_dozonecheck_impl(const char *dataset
, uint64_t zoned
, cred_t
*cr
)
423 * The dataset must be visible by this zone -- check this first
424 * so they don't see EPERM on something they shouldn't know about.
426 if (!INGLOBALZONE(curproc
) &&
427 !zone_dataset_visible(dataset
, &writable
))
428 return (SET_ERROR(ENOENT
));
430 if (INGLOBALZONE(curproc
)) {
432 * If the fs is zoned, only root can access it from the
435 if (secpolicy_zfs(cr
) && zoned
)
436 return (SET_ERROR(EPERM
));
439 * If we are in a local zone, the 'zoned' property must be set.
442 return (SET_ERROR(EPERM
));
444 /* must be writable by this zone */
446 return (SET_ERROR(EPERM
));
452 zfs_dozonecheck(const char *dataset
, cred_t
*cr
)
456 if (dsl_prop_get_integer(dataset
, "zoned", &zoned
, NULL
))
457 return (SET_ERROR(ENOENT
));
459 return (zfs_dozonecheck_impl(dataset
, zoned
, cr
));
463 zfs_dozonecheck_ds(const char *dataset
, dsl_dataset_t
*ds
, cred_t
*cr
)
467 if (dsl_prop_get_int_ds(ds
, "zoned", &zoned
))
468 return (SET_ERROR(ENOENT
));
470 return (zfs_dozonecheck_impl(dataset
, zoned
, cr
));
474 zfs_secpolicy_write_perms_ds(const char *name
, dsl_dataset_t
*ds
,
475 const char *perm
, cred_t
*cr
)
479 error
= zfs_dozonecheck_ds(name
, ds
, cr
);
481 error
= secpolicy_zfs(cr
);
483 error
= dsl_deleg_access_impl(ds
, perm
, cr
);
489 zfs_secpolicy_write_perms(const char *name
, const char *perm
, cred_t
*cr
)
496 * First do a quick check for root in the global zone, which
497 * is allowed to do all write_perms. This ensures that zfs_ioc_*
498 * will get to handle nonexistent datasets.
500 if (INGLOBALZONE(curproc
) && secpolicy_zfs(cr
) == 0)
503 error
= dsl_pool_hold(name
, FTAG
, &dp
);
507 error
= dsl_dataset_hold(dp
, name
, FTAG
, &ds
);
509 dsl_pool_rele(dp
, FTAG
);
513 error
= zfs_secpolicy_write_perms_ds(name
, ds
, perm
, cr
);
515 dsl_dataset_rele(ds
, FTAG
);
516 dsl_pool_rele(dp
, FTAG
);
521 * Policy for setting the security label property.
523 * Returns 0 for success, non-zero for access and other errors.
526 zfs_set_slabel_policy(const char *name
, char *strval
, cred_t
*cr
)
528 char ds_hexsl
[MAXNAMELEN
];
529 bslabel_t ds_sl
, new_sl
;
530 boolean_t new_default
= FALSE
;
532 int needed_priv
= -1;
535 /* First get the existing dataset label. */
536 error
= dsl_prop_get(name
, zfs_prop_to_name(ZFS_PROP_MLSLABEL
),
537 1, sizeof (ds_hexsl
), &ds_hexsl
, NULL
);
539 return (SET_ERROR(EPERM
));
541 if (strcasecmp(strval
, ZFS_MLSLABEL_DEFAULT
) == 0)
544 /* The label must be translatable */
545 if (!new_default
&& (hexstr_to_label(strval
, &new_sl
) != 0))
546 return (SET_ERROR(EINVAL
));
549 * In a non-global zone, disallow attempts to set a label that
550 * doesn't match that of the zone; otherwise no other checks
553 if (!INGLOBALZONE(curproc
)) {
554 if (new_default
|| !blequal(&new_sl
, CR_SL(CRED())))
555 return (SET_ERROR(EPERM
));
560 * For global-zone datasets (i.e., those whose zoned property is
561 * "off", verify that the specified new label is valid for the
564 if (dsl_prop_get_integer(name
,
565 zfs_prop_to_name(ZFS_PROP_ZONED
), &zoned
, NULL
))
566 return (SET_ERROR(EPERM
));
568 if (zfs_check_global_label(name
, strval
) != 0)
569 return (SET_ERROR(EPERM
));
573 * If the existing dataset label is nondefault, check if the
574 * dataset is mounted (label cannot be changed while mounted).
575 * Get the zfsvfs; if there isn't one, then the dataset isn't
576 * mounted (or isn't a dataset, doesn't exist, ...).
578 if (strcasecmp(ds_hexsl
, ZFS_MLSLABEL_DEFAULT
) != 0) {
580 static char *setsl_tag
= "setsl_tag";
583 * Try to own the dataset; abort if there is any error,
584 * (e.g., already mounted, in use, or other error).
586 error
= dmu_objset_own(name
, DMU_OST_ZFS
, B_TRUE
,
589 return (SET_ERROR(EPERM
));
591 dmu_objset_disown(os
, setsl_tag
);
594 needed_priv
= PRIV_FILE_DOWNGRADE_SL
;
598 if (hexstr_to_label(strval
, &new_sl
) != 0)
599 return (SET_ERROR(EPERM
));
601 if (blstrictdom(&ds_sl
, &new_sl
))
602 needed_priv
= PRIV_FILE_DOWNGRADE_SL
;
603 else if (blstrictdom(&new_sl
, &ds_sl
))
604 needed_priv
= PRIV_FILE_UPGRADE_SL
;
606 /* dataset currently has a default label */
608 needed_priv
= PRIV_FILE_UPGRADE_SL
;
612 if (needed_priv
!= -1)
613 return (PRIV_POLICY(cr
, needed_priv
, B_FALSE
, EPERM
, NULL
));
618 zfs_secpolicy_setprop(const char *dsname
, zfs_prop_t prop
, nvpair_t
*propval
,
624 * Check permissions for special properties.
629 * Disallow setting of 'zoned' from within a local zone.
631 if (!INGLOBALZONE(curproc
))
632 return (SET_ERROR(EPERM
));
636 case ZFS_PROP_FILESYSTEM_LIMIT
:
637 case ZFS_PROP_SNAPSHOT_LIMIT
:
638 if (!INGLOBALZONE(curproc
)) {
640 char setpoint
[ZFS_MAX_DATASET_NAME_LEN
];
642 * Unprivileged users are allowed to modify the
643 * limit on things *under* (ie. contained by)
644 * the thing they own.
646 if (dsl_prop_get_integer(dsname
, "zoned", &zoned
,
648 return (SET_ERROR(EPERM
));
649 if (!zoned
|| strlen(dsname
) <= strlen(setpoint
))
650 return (SET_ERROR(EPERM
));
654 case ZFS_PROP_MLSLABEL
:
655 if (!is_system_labeled())
656 return (SET_ERROR(EPERM
));
658 if (nvpair_value_string(propval
, &strval
) == 0) {
661 err
= zfs_set_slabel_policy(dsname
, strval
, CRED());
668 return (zfs_secpolicy_write_perms(dsname
, zfs_prop_to_name(prop
), cr
));
673 zfs_secpolicy_set_fsacl(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
677 error
= zfs_dozonecheck(zc
->zc_name
, cr
);
682 * permission to set permissions will be evaluated later in
683 * dsl_deleg_can_allow()
690 zfs_secpolicy_rollback(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
692 return (zfs_secpolicy_write_perms(zc
->zc_name
,
693 ZFS_DELEG_PERM_ROLLBACK
, cr
));
698 zfs_secpolicy_send(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
706 * Generate the current snapshot name from the given objsetid, then
707 * use that name for the secpolicy/zone checks.
709 cp
= strchr(zc
->zc_name
, '@');
711 return (SET_ERROR(EINVAL
));
712 error
= dsl_pool_hold(zc
->zc_name
, FTAG
, &dp
);
716 error
= dsl_dataset_hold_obj(dp
, zc
->zc_sendobj
, FTAG
, &ds
);
718 dsl_pool_rele(dp
, FTAG
);
722 dsl_dataset_name(ds
, zc
->zc_name
);
724 error
= zfs_secpolicy_write_perms_ds(zc
->zc_name
, ds
,
725 ZFS_DELEG_PERM_SEND
, cr
);
726 dsl_dataset_rele(ds
, FTAG
);
727 dsl_pool_rele(dp
, FTAG
);
734 zfs_secpolicy_send_new(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
736 return (zfs_secpolicy_write_perms(zc
->zc_name
,
737 ZFS_DELEG_PERM_SEND
, cr
));
742 zfs_secpolicy_deleg_share(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
747 if ((error
= lookupname(zc
->zc_value
, UIO_SYSSPACE
,
748 NO_FOLLOW
, NULL
, &vp
)) != 0)
751 /* Now make sure mntpnt and dataset are ZFS */
753 if (vp
->v_vfsp
->vfs_fstype
!= zfsfstype
||
754 (strcmp((char *)refstr_value(vp
->v_vfsp
->vfs_resource
),
755 zc
->zc_name
) != 0)) {
757 return (SET_ERROR(EPERM
));
761 return (dsl_deleg_access(zc
->zc_name
,
762 ZFS_DELEG_PERM_SHARE
, cr
));
766 zfs_secpolicy_share(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
768 if (!INGLOBALZONE(curproc
))
769 return (SET_ERROR(EPERM
));
771 if (secpolicy_nfs(cr
) == 0) {
774 return (zfs_secpolicy_deleg_share(zc
, innvl
, cr
));
779 zfs_secpolicy_smb_acl(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
781 if (!INGLOBALZONE(curproc
))
782 return (SET_ERROR(EPERM
));
784 if (secpolicy_smb(cr
) == 0) {
787 return (zfs_secpolicy_deleg_share(zc
, innvl
, cr
));
792 zfs_get_parent(const char *datasetname
, char *parent
, int parentsize
)
797 * Remove the @bla or /bla from the end of the name to get the parent.
799 (void) strncpy(parent
, datasetname
, parentsize
);
800 cp
= strrchr(parent
, '@');
804 cp
= strrchr(parent
, '/');
806 return (SET_ERROR(ENOENT
));
814 zfs_secpolicy_destroy_perms(const char *name
, cred_t
*cr
)
818 if ((error
= zfs_secpolicy_write_perms(name
,
819 ZFS_DELEG_PERM_MOUNT
, cr
)) != 0)
822 return (zfs_secpolicy_write_perms(name
, ZFS_DELEG_PERM_DESTROY
, cr
));
827 zfs_secpolicy_destroy(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
829 return (zfs_secpolicy_destroy_perms(zc
->zc_name
, cr
));
833 * Destroying snapshots with delegated permissions requires
834 * descendant mount and destroy permissions.
838 zfs_secpolicy_destroy_snaps(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
841 nvpair_t
*pair
, *nextpair
;
844 if (nvlist_lookup_nvlist(innvl
, "snaps", &snaps
) != 0)
845 return (SET_ERROR(EINVAL
));
846 for (pair
= nvlist_next_nvpair(snaps
, NULL
); pair
!= NULL
;
848 nextpair
= nvlist_next_nvpair(snaps
, pair
);
849 error
= zfs_secpolicy_destroy_perms(nvpair_name(pair
), cr
);
850 if (error
== ENOENT
) {
852 * Ignore any snapshots that don't exist (we consider
853 * them "already destroyed"). Remove the name from the
854 * nvl here in case the snapshot is created between
855 * now and when we try to destroy it (in which case
856 * we don't want to destroy it since we haven't
857 * checked for permission).
859 fnvlist_remove_nvpair(snaps
, pair
);
870 zfs_secpolicy_rename_perms(const char *from
, const char *to
, cred_t
*cr
)
872 char parentname
[ZFS_MAX_DATASET_NAME_LEN
];
875 if ((error
= zfs_secpolicy_write_perms(from
,
876 ZFS_DELEG_PERM_RENAME
, cr
)) != 0)
879 if ((error
= zfs_secpolicy_write_perms(from
,
880 ZFS_DELEG_PERM_MOUNT
, cr
)) != 0)
883 if ((error
= zfs_get_parent(to
, parentname
,
884 sizeof (parentname
))) != 0)
887 if ((error
= zfs_secpolicy_write_perms(parentname
,
888 ZFS_DELEG_PERM_CREATE
, cr
)) != 0)
891 if ((error
= zfs_secpolicy_write_perms(parentname
,
892 ZFS_DELEG_PERM_MOUNT
, cr
)) != 0)
900 zfs_secpolicy_rename(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
902 return (zfs_secpolicy_rename_perms(zc
->zc_name
, zc
->zc_value
, cr
));
907 zfs_secpolicy_promote(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
910 dsl_dataset_t
*clone
;
913 error
= zfs_secpolicy_write_perms(zc
->zc_name
,
914 ZFS_DELEG_PERM_PROMOTE
, cr
);
918 error
= dsl_pool_hold(zc
->zc_name
, FTAG
, &dp
);
922 error
= dsl_dataset_hold(dp
, zc
->zc_name
, FTAG
, &clone
);
925 char parentname
[ZFS_MAX_DATASET_NAME_LEN
];
926 dsl_dataset_t
*origin
= NULL
;
930 error
= dsl_dataset_hold_obj(dd
->dd_pool
,
931 dsl_dir_phys(dd
)->dd_origin_obj
, FTAG
, &origin
);
933 dsl_dataset_rele(clone
, FTAG
);
934 dsl_pool_rele(dp
, FTAG
);
938 error
= zfs_secpolicy_write_perms_ds(zc
->zc_name
, clone
,
939 ZFS_DELEG_PERM_MOUNT
, cr
);
941 dsl_dataset_name(origin
, parentname
);
943 error
= zfs_secpolicy_write_perms_ds(parentname
, origin
,
944 ZFS_DELEG_PERM_PROMOTE
, cr
);
946 dsl_dataset_rele(clone
, FTAG
);
947 dsl_dataset_rele(origin
, FTAG
);
949 dsl_pool_rele(dp
, FTAG
);
955 zfs_secpolicy_recv(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
959 if ((error
= zfs_secpolicy_write_perms(zc
->zc_name
,
960 ZFS_DELEG_PERM_RECEIVE
, cr
)) != 0)
963 if ((error
= zfs_secpolicy_write_perms(zc
->zc_name
,
964 ZFS_DELEG_PERM_MOUNT
, cr
)) != 0)
967 return (zfs_secpolicy_write_perms(zc
->zc_name
,
968 ZFS_DELEG_PERM_CREATE
, cr
));
972 zfs_secpolicy_snapshot_perms(const char *name
, cred_t
*cr
)
974 return (zfs_secpolicy_write_perms(name
,
975 ZFS_DELEG_PERM_SNAPSHOT
, cr
));
979 * Check for permission to create each snapshot in the nvlist.
983 zfs_secpolicy_snapshot(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
989 if (nvlist_lookup_nvlist(innvl
, "snaps", &snaps
) != 0)
990 return (SET_ERROR(EINVAL
));
991 for (pair
= nvlist_next_nvpair(snaps
, NULL
); pair
!= NULL
;
992 pair
= nvlist_next_nvpair(snaps
, pair
)) {
993 char *name
= nvpair_name(pair
);
994 char *atp
= strchr(name
, '@');
997 error
= SET_ERROR(EINVAL
);
1001 error
= zfs_secpolicy_snapshot_perms(name
, cr
);
1010 * Check for permission to create each snapshot in the nvlist.
1014 zfs_secpolicy_bookmark(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1018 for (nvpair_t
*pair
= nvlist_next_nvpair(innvl
, NULL
);
1019 pair
!= NULL
; pair
= nvlist_next_nvpair(innvl
, pair
)) {
1020 char *name
= nvpair_name(pair
);
1021 char *hashp
= strchr(name
, '#');
1023 if (hashp
== NULL
) {
1024 error
= SET_ERROR(EINVAL
);
1028 error
= zfs_secpolicy_write_perms(name
,
1029 ZFS_DELEG_PERM_BOOKMARK
, cr
);
1039 zfs_secpolicy_destroy_bookmarks(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1041 nvpair_t
*pair
, *nextpair
;
1044 for (pair
= nvlist_next_nvpair(innvl
, NULL
); pair
!= NULL
;
1046 char *name
= nvpair_name(pair
);
1047 char *hashp
= strchr(name
, '#');
1048 nextpair
= nvlist_next_nvpair(innvl
, pair
);
1050 if (hashp
== NULL
) {
1051 error
= SET_ERROR(EINVAL
);
1056 error
= zfs_secpolicy_write_perms(name
,
1057 ZFS_DELEG_PERM_DESTROY
, cr
);
1059 if (error
== ENOENT
) {
1061 * Ignore any filesystems that don't exist (we consider
1062 * their bookmarks "already destroyed"). Remove
1063 * the name from the nvl here in case the filesystem
1064 * is created between now and when we try to destroy
1065 * the bookmark (in which case we don't want to
1066 * destroy it since we haven't checked for permission).
1068 fnvlist_remove_nvpair(innvl
, pair
);
1080 zfs_secpolicy_log_history(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1083 * Even root must have a proper TSD so that we know what pool
1086 if (tsd_get(zfs_allow_log_key
) == NULL
)
1087 return (SET_ERROR(EPERM
));
1092 zfs_secpolicy_create_clone(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1094 char parentname
[ZFS_MAX_DATASET_NAME_LEN
];
1098 if ((error
= zfs_get_parent(zc
->zc_name
, parentname
,
1099 sizeof (parentname
))) != 0)
1102 if (nvlist_lookup_string(innvl
, "origin", &origin
) == 0 &&
1103 (error
= zfs_secpolicy_write_perms(origin
,
1104 ZFS_DELEG_PERM_CLONE
, cr
)) != 0)
1107 if ((error
= zfs_secpolicy_write_perms(parentname
,
1108 ZFS_DELEG_PERM_CREATE
, cr
)) != 0)
1111 return (zfs_secpolicy_write_perms(parentname
,
1112 ZFS_DELEG_PERM_MOUNT
, cr
));
1116 * Policy for pool operations - create/destroy pools, add vdevs, etc. Requires
1117 * SYS_CONFIG privilege, which is not available in a local zone.
1121 zfs_secpolicy_config(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1123 if (secpolicy_sys_config(cr
, B_FALSE
) != 0)
1124 return (SET_ERROR(EPERM
));
1130 * Policy for object to name lookups.
1134 zfs_secpolicy_diff(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1138 if ((error
= secpolicy_sys_config(cr
, B_FALSE
)) == 0)
1141 error
= zfs_secpolicy_write_perms(zc
->zc_name
, ZFS_DELEG_PERM_DIFF
, cr
);
1146 * Policy for fault injection. Requires all privileges.
1150 zfs_secpolicy_inject(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1152 return (secpolicy_zinject(cr
));
1157 zfs_secpolicy_inherit_prop(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1159 zfs_prop_t prop
= zfs_name_to_prop(zc
->zc_value
);
1161 if (prop
== ZPROP_INVAL
) {
1162 if (!zfs_prop_user(zc
->zc_value
))
1163 return (SET_ERROR(EINVAL
));
1164 return (zfs_secpolicy_write_perms(zc
->zc_name
,
1165 ZFS_DELEG_PERM_USERPROP
, cr
));
1167 return (zfs_secpolicy_setprop(zc
->zc_name
, prop
,
1173 zfs_secpolicy_userspace_one(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1175 int err
= zfs_secpolicy_read(zc
, innvl
, cr
);
1179 if (zc
->zc_objset_type
>= ZFS_NUM_USERQUOTA_PROPS
)
1180 return (SET_ERROR(EINVAL
));
1182 if (zc
->zc_value
[0] == 0) {
1184 * They are asking about a posix uid/gid. If it's
1185 * themself, allow it.
1187 if (zc
->zc_objset_type
== ZFS_PROP_USERUSED
||
1188 zc
->zc_objset_type
== ZFS_PROP_USERQUOTA
) {
1189 if (zc
->zc_guid
== crgetuid(cr
))
1192 if (groupmember(zc
->zc_guid
, cr
))
1197 return (zfs_secpolicy_write_perms(zc
->zc_name
,
1198 userquota_perms
[zc
->zc_objset_type
], cr
));
1202 zfs_secpolicy_userspace_many(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1204 int err
= zfs_secpolicy_read(zc
, innvl
, cr
);
1208 if (zc
->zc_objset_type
>= ZFS_NUM_USERQUOTA_PROPS
)
1209 return (SET_ERROR(EINVAL
));
1211 return (zfs_secpolicy_write_perms(zc
->zc_name
,
1212 userquota_perms
[zc
->zc_objset_type
], cr
));
1217 zfs_secpolicy_userspace_upgrade(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1219 return (zfs_secpolicy_setprop(zc
->zc_name
, ZFS_PROP_VERSION
,
1225 zfs_secpolicy_hold(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1231 error
= nvlist_lookup_nvlist(innvl
, "holds", &holds
);
1233 return (SET_ERROR(EINVAL
));
1235 for (pair
= nvlist_next_nvpair(holds
, NULL
); pair
!= NULL
;
1236 pair
= nvlist_next_nvpair(holds
, pair
)) {
1237 char fsname
[ZFS_MAX_DATASET_NAME_LEN
];
1238 error
= dmu_fsname(nvpair_name(pair
), fsname
);
1241 error
= zfs_secpolicy_write_perms(fsname
,
1242 ZFS_DELEG_PERM_HOLD
, cr
);
1251 zfs_secpolicy_release(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1256 for (pair
= nvlist_next_nvpair(innvl
, NULL
); pair
!= NULL
;
1257 pair
= nvlist_next_nvpair(innvl
, pair
)) {
1258 char fsname
[ZFS_MAX_DATASET_NAME_LEN
];
1259 error
= dmu_fsname(nvpair_name(pair
), fsname
);
1262 error
= zfs_secpolicy_write_perms(fsname
,
1263 ZFS_DELEG_PERM_RELEASE
, cr
);
1271 * Policy for allowing temporary snapshots to be taken or released
1274 zfs_secpolicy_tmp_snapshot(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1277 * A temporary snapshot is the same as a snapshot,
1278 * hold, destroy and release all rolled into one.
1279 * Delegated diff alone is sufficient that we allow this.
1283 if ((error
= zfs_secpolicy_write_perms(zc
->zc_name
,
1284 ZFS_DELEG_PERM_DIFF
, cr
)) == 0)
1287 error
= zfs_secpolicy_snapshot_perms(zc
->zc_name
, cr
);
1289 error
= zfs_secpolicy_hold(zc
, innvl
, cr
);
1291 error
= zfs_secpolicy_release(zc
, innvl
, cr
);
1293 error
= zfs_secpolicy_destroy(zc
, innvl
, cr
);
1298 * Returns the nvlist as specified by the user in the zfs_cmd_t.
1301 get_nvlist(uint64_t nvl
, uint64_t size
, int iflag
, nvlist_t
**nvp
)
1305 nvlist_t
*list
= NULL
;
1308 * Read in and unpack the user-supplied nvlist.
1311 return (SET_ERROR(EINVAL
));
1313 packed
= kmem_alloc(size
, KM_SLEEP
);
1315 if ((error
= ddi_copyin((void *)(uintptr_t)nvl
, packed
, size
,
1317 kmem_free(packed
, size
);
1318 return (SET_ERROR(EFAULT
));
1321 if ((error
= nvlist_unpack(packed
, size
, &list
, 0)) != 0) {
1322 kmem_free(packed
, size
);
1326 kmem_free(packed
, size
);
1333 * Reduce the size of this nvlist until it can be serialized in 'max' bytes.
1334 * Entries will be removed from the end of the nvlist, and one int32 entry
1335 * named "N_MORE_ERRORS" will be added indicating how many entries were
1339 nvlist_smush(nvlist_t
*errors
, size_t max
)
1343 size
= fnvlist_size(errors
);
1346 nvpair_t
*more_errors
;
1350 return (SET_ERROR(ENOMEM
));
1352 fnvlist_add_int32(errors
, ZPROP_N_MORE_ERRORS
, 0);
1353 more_errors
= nvlist_prev_nvpair(errors
, NULL
);
1356 nvpair_t
*pair
= nvlist_prev_nvpair(errors
,
1358 fnvlist_remove_nvpair(errors
, pair
);
1360 size
= fnvlist_size(errors
);
1361 } while (size
> max
);
1363 fnvlist_remove_nvpair(errors
, more_errors
);
1364 fnvlist_add_int32(errors
, ZPROP_N_MORE_ERRORS
, n
);
1365 ASSERT3U(fnvlist_size(errors
), <=, max
);
1372 put_nvlist(zfs_cmd_t
*zc
, nvlist_t
*nvl
)
1374 char *packed
= NULL
;
1378 size
= fnvlist_size(nvl
);
1380 if (size
> zc
->zc_nvlist_dst_size
) {
1381 error
= SET_ERROR(ENOMEM
);
1383 packed
= fnvlist_pack(nvl
, &size
);
1384 if (ddi_copyout(packed
, (void *)(uintptr_t)zc
->zc_nvlist_dst
,
1385 size
, zc
->zc_iflags
) != 0)
1386 error
= SET_ERROR(EFAULT
);
1387 fnvlist_pack_free(packed
, size
);
1390 zc
->zc_nvlist_dst_size
= size
;
1391 zc
->zc_nvlist_dst_filled
= B_TRUE
;
1396 getzfsvfs(const char *dsname
, zfsvfs_t
**zfvp
)
1401 error
= dmu_objset_hold(dsname
, FTAG
, &os
);
1404 if (dmu_objset_type(os
) != DMU_OST_ZFS
) {
1405 dmu_objset_rele(os
, FTAG
);
1406 return (SET_ERROR(EINVAL
));
1409 mutex_enter(&os
->os_user_ptr_lock
);
1410 *zfvp
= dmu_objset_get_user(os
);
1412 VFS_HOLD((*zfvp
)->z_vfs
);
1414 error
= SET_ERROR(ESRCH
);
1416 mutex_exit(&os
->os_user_ptr_lock
);
1417 dmu_objset_rele(os
, FTAG
);
1422 * Find a zfsvfs_t for a mounted filesystem, or create our own, in which
1423 * case its z_vfs will be NULL, and it will be opened as the owner.
1424 * If 'writer' is set, the z_teardown_lock will be held for RW_WRITER,
1425 * which prevents all vnode ops from running.
1428 zfsvfs_hold(const char *name
, void *tag
, zfsvfs_t
**zfvp
, boolean_t writer
)
1432 if (getzfsvfs(name
, zfvp
) != 0)
1433 error
= zfsvfs_create(name
, zfvp
);
1435 rrm_enter(&(*zfvp
)->z_teardown_lock
, (writer
) ? RW_WRITER
:
1437 if ((*zfvp
)->z_unmounted
) {
1439 * XXX we could probably try again, since the unmounting
1440 * thread should be just about to disassociate the
1441 * objset from the zfsvfs.
1443 rrm_exit(&(*zfvp
)->z_teardown_lock
, tag
);
1444 return (SET_ERROR(EBUSY
));
1451 zfsvfs_rele(zfsvfs_t
*zfsvfs
, void *tag
)
1453 rrm_exit(&zfsvfs
->z_teardown_lock
, tag
);
1455 if (zfsvfs
->z_vfs
) {
1456 VFS_RELE(zfsvfs
->z_vfs
);
1458 dmu_objset_disown(zfsvfs
->z_os
, zfsvfs
);
1459 zfsvfs_free(zfsvfs
);
1464 zfs_ioc_pool_create(zfs_cmd_t
*zc
)
1467 nvlist_t
*config
, *props
= NULL
;
1468 nvlist_t
*rootprops
= NULL
;
1469 nvlist_t
*zplprops
= NULL
;
1471 if (error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1472 zc
->zc_iflags
, &config
))
1475 if (zc
->zc_nvlist_src_size
!= 0 && (error
=
1476 get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
1477 zc
->zc_iflags
, &props
))) {
1478 nvlist_free(config
);
1483 nvlist_t
*nvl
= NULL
;
1484 uint64_t version
= SPA_VERSION
;
1486 (void) nvlist_lookup_uint64(props
,
1487 zpool_prop_to_name(ZPOOL_PROP_VERSION
), &version
);
1488 if (!SPA_VERSION_IS_SUPPORTED(version
)) {
1489 error
= SET_ERROR(EINVAL
);
1490 goto pool_props_bad
;
1492 (void) nvlist_lookup_nvlist(props
, ZPOOL_ROOTFS_PROPS
, &nvl
);
1494 error
= nvlist_dup(nvl
, &rootprops
, KM_SLEEP
);
1496 nvlist_free(config
);
1500 (void) nvlist_remove_all(props
, ZPOOL_ROOTFS_PROPS
);
1502 VERIFY(nvlist_alloc(&zplprops
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
1503 error
= zfs_fill_zplprops_root(version
, rootprops
,
1506 goto pool_props_bad
;
1509 error
= spa_create(zc
->zc_name
, config
, props
, zplprops
);
1512 * Set the remaining root properties
1514 if (!error
&& (error
= zfs_set_prop_nvlist(zc
->zc_name
,
1515 ZPROP_SRC_LOCAL
, rootprops
, NULL
)) != 0)
1516 (void) spa_destroy(zc
->zc_name
);
1519 nvlist_free(rootprops
);
1520 nvlist_free(zplprops
);
1521 nvlist_free(config
);
1528 zfs_ioc_pool_destroy(zfs_cmd_t
*zc
)
1531 zfs_log_history(zc
);
1532 error
= spa_destroy(zc
->zc_name
);
1534 zvol_remove_minors(zc
->zc_name
);
1539 zfs_ioc_pool_import(zfs_cmd_t
*zc
)
1541 nvlist_t
*config
, *props
= NULL
;
1545 if ((error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1546 zc
->zc_iflags
, &config
)) != 0)
1549 if (zc
->zc_nvlist_src_size
!= 0 && (error
=
1550 get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
1551 zc
->zc_iflags
, &props
))) {
1552 nvlist_free(config
);
1556 if (nvlist_lookup_uint64(config
, ZPOOL_CONFIG_POOL_GUID
, &guid
) != 0 ||
1557 guid
!= zc
->zc_guid
)
1558 error
= SET_ERROR(EINVAL
);
1560 error
= spa_import(zc
->zc_name
, config
, props
, zc
->zc_cookie
);
1562 if (zc
->zc_nvlist_dst
!= 0) {
1565 if ((err
= put_nvlist(zc
, config
)) != 0)
1569 nvlist_free(config
);
1577 zfs_ioc_pool_export(zfs_cmd_t
*zc
)
1580 boolean_t force
= (boolean_t
)zc
->zc_cookie
;
1581 boolean_t hardforce
= (boolean_t
)zc
->zc_guid
;
1583 zfs_log_history(zc
);
1584 error
= spa_export(zc
->zc_name
, NULL
, force
, hardforce
);
1586 zvol_remove_minors(zc
->zc_name
);
1591 zfs_ioc_pool_configs(zfs_cmd_t
*zc
)
1596 if ((configs
= spa_all_configs(&zc
->zc_cookie
)) == NULL
)
1597 return (SET_ERROR(EEXIST
));
1599 error
= put_nvlist(zc
, configs
);
1601 nvlist_free(configs
);
1608 * zc_name name of the pool
1611 * zc_cookie real errno
1612 * zc_nvlist_dst config nvlist
1613 * zc_nvlist_dst_size size of config nvlist
1616 zfs_ioc_pool_stats(zfs_cmd_t
*zc
)
1622 error
= spa_get_stats(zc
->zc_name
, &config
, zc
->zc_value
,
1623 sizeof (zc
->zc_value
));
1625 if (config
!= NULL
) {
1626 ret
= put_nvlist(zc
, config
);
1627 nvlist_free(config
);
1630 * The config may be present even if 'error' is non-zero.
1631 * In this case we return success, and preserve the real errno
1634 zc
->zc_cookie
= error
;
1643 * Try to import the given pool, returning pool stats as appropriate so that
1644 * user land knows which devices are available and overall pool health.
1647 zfs_ioc_pool_tryimport(zfs_cmd_t
*zc
)
1649 nvlist_t
*tryconfig
, *config
;
1652 if ((error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1653 zc
->zc_iflags
, &tryconfig
)) != 0)
1656 config
= spa_tryimport(tryconfig
);
1658 nvlist_free(tryconfig
);
1661 return (SET_ERROR(EINVAL
));
1663 error
= put_nvlist(zc
, config
);
1664 nvlist_free(config
);
1671 * zc_name name of the pool
1672 * zc_cookie scan func (pool_scan_func_t)
1675 zfs_ioc_pool_scan(zfs_cmd_t
*zc
)
1680 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1683 if (zc
->zc_cookie
== POOL_SCAN_NONE
)
1684 error
= spa_scan_stop(spa
);
1686 error
= spa_scan(spa
, zc
->zc_cookie
);
1688 spa_close(spa
, FTAG
);
1694 zfs_ioc_pool_freeze(zfs_cmd_t
*zc
)
1699 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
1702 spa_close(spa
, FTAG
);
1708 zfs_ioc_pool_upgrade(zfs_cmd_t
*zc
)
1713 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1716 if (zc
->zc_cookie
< spa_version(spa
) ||
1717 !SPA_VERSION_IS_SUPPORTED(zc
->zc_cookie
)) {
1718 spa_close(spa
, FTAG
);
1719 return (SET_ERROR(EINVAL
));
1722 spa_upgrade(spa
, zc
->zc_cookie
);
1723 spa_close(spa
, FTAG
);
1729 zfs_ioc_pool_get_history(zfs_cmd_t
*zc
)
1736 if ((size
= zc
->zc_history_len
) == 0)
1737 return (SET_ERROR(EINVAL
));
1739 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1742 if (spa_version(spa
) < SPA_VERSION_ZPOOL_HISTORY
) {
1743 spa_close(spa
, FTAG
);
1744 return (SET_ERROR(ENOTSUP
));
1747 hist_buf
= kmem_alloc(size
, KM_SLEEP
);
1748 if ((error
= spa_history_get(spa
, &zc
->zc_history_offset
,
1749 &zc
->zc_history_len
, hist_buf
)) == 0) {
1750 error
= ddi_copyout(hist_buf
,
1751 (void *)(uintptr_t)zc
->zc_history
,
1752 zc
->zc_history_len
, zc
->zc_iflags
);
1755 spa_close(spa
, FTAG
);
1756 kmem_free(hist_buf
, size
);
1761 zfs_ioc_pool_reguid(zfs_cmd_t
*zc
)
1766 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
1768 error
= spa_change_guid(spa
);
1769 spa_close(spa
, FTAG
);
1775 zfs_ioc_dsobj_to_dsname(zfs_cmd_t
*zc
)
1777 return (dsl_dsobj_to_dsname(zc
->zc_name
, zc
->zc_obj
, zc
->zc_value
));
1782 * zc_name name of filesystem
1783 * zc_obj object to find
1786 * zc_value name of object
1789 zfs_ioc_obj_to_path(zfs_cmd_t
*zc
)
1794 /* XXX reading from objset not owned */
1795 if ((error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
)) != 0)
1797 if (dmu_objset_type(os
) != DMU_OST_ZFS
) {
1798 dmu_objset_rele(os
, FTAG
);
1799 return (SET_ERROR(EINVAL
));
1801 error
= zfs_obj_to_path(os
, zc
->zc_obj
, zc
->zc_value
,
1802 sizeof (zc
->zc_value
));
1803 dmu_objset_rele(os
, FTAG
);
1810 * zc_name name of filesystem
1811 * zc_obj object to find
1814 * zc_stat stats on object
1815 * zc_value path to object
1818 zfs_ioc_obj_to_stats(zfs_cmd_t
*zc
)
1823 /* XXX reading from objset not owned */
1824 if ((error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
)) != 0)
1826 if (dmu_objset_type(os
) != DMU_OST_ZFS
) {
1827 dmu_objset_rele(os
, FTAG
);
1828 return (SET_ERROR(EINVAL
));
1830 error
= zfs_obj_to_stats(os
, zc
->zc_obj
, &zc
->zc_stat
, zc
->zc_value
,
1831 sizeof (zc
->zc_value
));
1832 dmu_objset_rele(os
, FTAG
);
1838 zfs_ioc_vdev_add(zfs_cmd_t
*zc
)
1842 nvlist_t
*config
, **l2cache
, **spares
;
1843 uint_t nl2cache
= 0, nspares
= 0;
1845 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
1849 error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1850 zc
->zc_iflags
, &config
);
1851 (void) nvlist_lookup_nvlist_array(config
, ZPOOL_CONFIG_L2CACHE
,
1852 &l2cache
, &nl2cache
);
1854 (void) nvlist_lookup_nvlist_array(config
, ZPOOL_CONFIG_SPARES
,
1858 * A root pool with concatenated devices is not supported.
1859 * Thus, can not add a device to a root pool.
1861 * Intent log device can not be added to a rootpool because
1862 * during mountroot, zil is replayed, a seperated log device
1863 * can not be accessed during the mountroot time.
1865 * l2cache and spare devices are ok to be added to a rootpool.
1867 if (spa_bootfs(spa
) != 0 && nl2cache
== 0 && nspares
== 0) {
1868 nvlist_free(config
);
1869 spa_close(spa
, FTAG
);
1870 return (SET_ERROR(EDOM
));
1874 error
= spa_vdev_add(spa
, config
);
1875 nvlist_free(config
);
1877 spa_close(spa
, FTAG
);
1883 * zc_name name of the pool
1884 * zc_nvlist_conf nvlist of devices to remove
1885 * zc_cookie to stop the remove?
1888 zfs_ioc_vdev_remove(zfs_cmd_t
*zc
)
1893 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
1896 error
= spa_vdev_remove(spa
, zc
->zc_guid
, B_FALSE
);
1897 spa_close(spa
, FTAG
);
1902 zfs_ioc_vdev_set_state(zfs_cmd_t
*zc
)
1906 vdev_state_t newstate
= VDEV_STATE_UNKNOWN
;
1908 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1910 switch (zc
->zc_cookie
) {
1911 case VDEV_STATE_ONLINE
:
1912 error
= vdev_online(spa
, zc
->zc_guid
, zc
->zc_obj
, &newstate
);
1915 case VDEV_STATE_OFFLINE
:
1916 error
= vdev_offline(spa
, zc
->zc_guid
, zc
->zc_obj
);
1919 case VDEV_STATE_FAULTED
:
1920 if (zc
->zc_obj
!= VDEV_AUX_ERR_EXCEEDED
&&
1921 zc
->zc_obj
!= VDEV_AUX_EXTERNAL
)
1922 zc
->zc_obj
= VDEV_AUX_ERR_EXCEEDED
;
1924 error
= vdev_fault(spa
, zc
->zc_guid
, zc
->zc_obj
);
1927 case VDEV_STATE_DEGRADED
:
1928 if (zc
->zc_obj
!= VDEV_AUX_ERR_EXCEEDED
&&
1929 zc
->zc_obj
!= VDEV_AUX_EXTERNAL
)
1930 zc
->zc_obj
= VDEV_AUX_ERR_EXCEEDED
;
1932 error
= vdev_degrade(spa
, zc
->zc_guid
, zc
->zc_obj
);
1936 error
= SET_ERROR(EINVAL
);
1938 zc
->zc_cookie
= newstate
;
1939 spa_close(spa
, FTAG
);
1944 zfs_ioc_vdev_attach(zfs_cmd_t
*zc
)
1947 int replacing
= zc
->zc_cookie
;
1951 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1954 if ((error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1955 zc
->zc_iflags
, &config
)) == 0) {
1956 error
= spa_vdev_attach(spa
, zc
->zc_guid
, config
, replacing
);
1957 nvlist_free(config
);
1960 spa_close(spa
, FTAG
);
1965 zfs_ioc_vdev_detach(zfs_cmd_t
*zc
)
1970 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1973 error
= spa_vdev_detach(spa
, zc
->zc_guid
, 0, B_FALSE
);
1975 spa_close(spa
, FTAG
);
1980 zfs_ioc_vdev_split(zfs_cmd_t
*zc
)
1983 nvlist_t
*config
, *props
= NULL
;
1985 boolean_t exp
= !!(zc
->zc_cookie
& ZPOOL_EXPORT_AFTER_SPLIT
);
1987 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1990 if (error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1991 zc
->zc_iflags
, &config
)) {
1992 spa_close(spa
, FTAG
);
1996 if (zc
->zc_nvlist_src_size
!= 0 && (error
=
1997 get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
1998 zc
->zc_iflags
, &props
))) {
1999 spa_close(spa
, FTAG
);
2000 nvlist_free(config
);
2004 error
= spa_vdev_split_mirror(spa
, zc
->zc_string
, config
, props
, exp
);
2006 spa_close(spa
, FTAG
);
2008 nvlist_free(config
);
2015 zfs_ioc_vdev_setpath(zfs_cmd_t
*zc
)
2018 char *path
= zc
->zc_value
;
2019 uint64_t guid
= zc
->zc_guid
;
2022 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
2026 error
= spa_vdev_setpath(spa
, guid
, path
);
2027 spa_close(spa
, FTAG
);
2032 zfs_ioc_vdev_setfru(zfs_cmd_t
*zc
)
2035 char *fru
= zc
->zc_value
;
2036 uint64_t guid
= zc
->zc_guid
;
2039 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
2043 error
= spa_vdev_setfru(spa
, guid
, fru
);
2044 spa_close(spa
, FTAG
);
2049 zfs_ioc_objset_stats_impl(zfs_cmd_t
*zc
, objset_t
*os
)
2054 dmu_objset_fast_stat(os
, &zc
->zc_objset_stats
);
2056 if (zc
->zc_nvlist_dst
!= 0 &&
2057 (error
= dsl_prop_get_all(os
, &nv
)) == 0) {
2058 dmu_objset_stats(os
, nv
);
2060 * NB: zvol_get_stats() will read the objset contents,
2061 * which we aren't supposed to do with a
2062 * DS_MODE_USER hold, because it could be
2063 * inconsistent. So this is a bit of a workaround...
2064 * XXX reading with out owning
2066 if (!zc
->zc_objset_stats
.dds_inconsistent
&&
2067 dmu_objset_type(os
) == DMU_OST_ZVOL
) {
2068 error
= zvol_get_stats(os
, nv
);
2073 error
= put_nvlist(zc
, nv
);
2082 * zc_name name of filesystem
2083 * zc_nvlist_dst_size size of buffer for property nvlist
2086 * zc_objset_stats stats
2087 * zc_nvlist_dst property nvlist
2088 * zc_nvlist_dst_size size of property nvlist
2091 zfs_ioc_objset_stats(zfs_cmd_t
*zc
)
2096 error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
);
2098 error
= zfs_ioc_objset_stats_impl(zc
, os
);
2099 dmu_objset_rele(os
, FTAG
);
2107 * zc_name name of filesystem
2108 * zc_nvlist_dst_size size of buffer for property nvlist
2111 * zc_nvlist_dst received property nvlist
2112 * zc_nvlist_dst_size size of received property nvlist
2114 * Gets received properties (distinct from local properties on or after
2115 * SPA_VERSION_RECVD_PROPS) for callers who want to differentiate received from
2116 * local property values.
2119 zfs_ioc_objset_recvd_props(zfs_cmd_t
*zc
)
2125 * Without this check, we would return local property values if the
2126 * caller has not already received properties on or after
2127 * SPA_VERSION_RECVD_PROPS.
2129 if (!dsl_prop_get_hasrecvd(zc
->zc_name
))
2130 return (SET_ERROR(ENOTSUP
));
2132 if (zc
->zc_nvlist_dst
!= 0 &&
2133 (error
= dsl_prop_get_received(zc
->zc_name
, &nv
)) == 0) {
2134 error
= put_nvlist(zc
, nv
);
2142 nvl_add_zplprop(objset_t
*os
, nvlist_t
*props
, zfs_prop_t prop
)
2148 * zfs_get_zplprop() will either find a value or give us
2149 * the default value (if there is one).
2151 if ((error
= zfs_get_zplprop(os
, prop
, &value
)) != 0)
2153 VERIFY(nvlist_add_uint64(props
, zfs_prop_to_name(prop
), value
) == 0);
2159 * zc_name name of filesystem
2160 * zc_nvlist_dst_size size of buffer for zpl property nvlist
2163 * zc_nvlist_dst zpl property nvlist
2164 * zc_nvlist_dst_size size of zpl property nvlist
2167 zfs_ioc_objset_zplprops(zfs_cmd_t
*zc
)
2172 /* XXX reading without owning */
2173 if (err
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
))
2176 dmu_objset_fast_stat(os
, &zc
->zc_objset_stats
);
2179 * NB: nvl_add_zplprop() will read the objset contents,
2180 * which we aren't supposed to do with a DS_MODE_USER
2181 * hold, because it could be inconsistent.
2183 if (zc
->zc_nvlist_dst
!= NULL
&&
2184 !zc
->zc_objset_stats
.dds_inconsistent
&&
2185 dmu_objset_type(os
) == DMU_OST_ZFS
) {
2188 VERIFY(nvlist_alloc(&nv
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
2189 if ((err
= nvl_add_zplprop(os
, nv
, ZFS_PROP_VERSION
)) == 0 &&
2190 (err
= nvl_add_zplprop(os
, nv
, ZFS_PROP_NORMALIZE
)) == 0 &&
2191 (err
= nvl_add_zplprop(os
, nv
, ZFS_PROP_UTF8ONLY
)) == 0 &&
2192 (err
= nvl_add_zplprop(os
, nv
, ZFS_PROP_CASE
)) == 0)
2193 err
= put_nvlist(zc
, nv
);
2196 err
= SET_ERROR(ENOENT
);
2198 dmu_objset_rele(os
, FTAG
);
2203 dataset_name_hidden(const char *name
)
2206 * Skip over datasets that are not visible in this zone,
2207 * internal datasets (which have a $ in their name), and
2208 * temporary datasets (which have a % in their name).
2210 if (strchr(name
, '$') != NULL
)
2212 if (strchr(name
, '%') != NULL
)
2214 if (!INGLOBALZONE(curproc
) && !zone_dataset_visible(name
, NULL
))
2221 * zc_name name of filesystem
2222 * zc_cookie zap cursor
2223 * zc_nvlist_dst_size size of buffer for property nvlist
2226 * zc_name name of next filesystem
2227 * zc_cookie zap cursor
2228 * zc_objset_stats stats
2229 * zc_nvlist_dst property nvlist
2230 * zc_nvlist_dst_size size of property nvlist
2233 zfs_ioc_dataset_list_next(zfs_cmd_t
*zc
)
2238 size_t orig_len
= strlen(zc
->zc_name
);
2241 if (error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
)) {
2242 if (error
== ENOENT
)
2243 error
= SET_ERROR(ESRCH
);
2247 p
= strrchr(zc
->zc_name
, '/');
2248 if (p
== NULL
|| p
[1] != '\0')
2249 (void) strlcat(zc
->zc_name
, "/", sizeof (zc
->zc_name
));
2250 p
= zc
->zc_name
+ strlen(zc
->zc_name
);
2253 error
= dmu_dir_list_next(os
,
2254 sizeof (zc
->zc_name
) - (p
- zc
->zc_name
), p
,
2255 NULL
, &zc
->zc_cookie
);
2256 if (error
== ENOENT
)
2257 error
= SET_ERROR(ESRCH
);
2258 } while (error
== 0 && dataset_name_hidden(zc
->zc_name
));
2259 dmu_objset_rele(os
, FTAG
);
2262 * If it's an internal dataset (ie. with a '$' in its name),
2263 * don't try to get stats for it, otherwise we'll return ENOENT.
2265 if (error
== 0 && strchr(zc
->zc_name
, '$') == NULL
) {
2266 error
= zfs_ioc_objset_stats(zc
); /* fill in the stats */
2267 if (error
== ENOENT
) {
2268 /* We lost a race with destroy, get the next one. */
2269 zc
->zc_name
[orig_len
] = '\0';
2278 * zc_name name of filesystem
2279 * zc_cookie zap cursor
2280 * zc_nvlist_dst_size size of buffer for property nvlist
2281 * zc_simple when set, only name is requested
2284 * zc_name name of next snapshot
2285 * zc_objset_stats stats
2286 * zc_nvlist_dst property nvlist
2287 * zc_nvlist_dst_size size of property nvlist
2290 zfs_ioc_snapshot_list_next(zfs_cmd_t
*zc
)
2295 error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
);
2297 return (error
== ENOENT
? ESRCH
: error
);
2301 * A dataset name of maximum length cannot have any snapshots,
2302 * so exit immediately.
2304 if (strlcat(zc
->zc_name
, "@", sizeof (zc
->zc_name
)) >=
2305 ZFS_MAX_DATASET_NAME_LEN
) {
2306 dmu_objset_rele(os
, FTAG
);
2307 return (SET_ERROR(ESRCH
));
2310 error
= dmu_snapshot_list_next(os
,
2311 sizeof (zc
->zc_name
) - strlen(zc
->zc_name
),
2312 zc
->zc_name
+ strlen(zc
->zc_name
), &zc
->zc_obj
, &zc
->zc_cookie
,
2315 if (error
== 0 && !zc
->zc_simple
) {
2317 dsl_pool_t
*dp
= os
->os_dsl_dataset
->ds_dir
->dd_pool
;
2319 error
= dsl_dataset_hold_obj(dp
, zc
->zc_obj
, FTAG
, &ds
);
2323 error
= dmu_objset_from_ds(ds
, &ossnap
);
2325 error
= zfs_ioc_objset_stats_impl(zc
, ossnap
);
2326 dsl_dataset_rele(ds
, FTAG
);
2328 } else if (error
== ENOENT
) {
2329 error
= SET_ERROR(ESRCH
);
2332 dmu_objset_rele(os
, FTAG
);
2333 /* if we failed, undo the @ that we tacked on to zc_name */
2335 *strchr(zc
->zc_name
, '@') = '\0';
2340 zfs_prop_set_userquota(const char *dsname
, nvpair_t
*pair
)
2342 const char *propname
= nvpair_name(pair
);
2344 unsigned int vallen
;
2347 zfs_userquota_prop_t type
;
2353 if (nvpair_type(pair
) == DATA_TYPE_NVLIST
) {
2355 VERIFY(nvpair_value_nvlist(pair
, &attrs
) == 0);
2356 if (nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
2358 return (SET_ERROR(EINVAL
));
2362 * A correctly constructed propname is encoded as
2363 * userquota@<rid>-<domain>.
2365 if ((dash
= strchr(propname
, '-')) == NULL
||
2366 nvpair_value_uint64_array(pair
, &valary
, &vallen
) != 0 ||
2368 return (SET_ERROR(EINVAL
));
2375 err
= zfsvfs_hold(dsname
, FTAG
, &zfsvfs
, B_FALSE
);
2377 err
= zfs_set_userquota(zfsvfs
, type
, domain
, rid
, quota
);
2378 zfsvfs_rele(zfsvfs
, FTAG
);
2385 * If the named property is one that has a special function to set its value,
2386 * return 0 on success and a positive error code on failure; otherwise if it is
2387 * not one of the special properties handled by this function, return -1.
2389 * XXX: It would be better for callers of the property interface if we handled
2390 * these special cases in dsl_prop.c (in the dsl layer).
2393 zfs_prop_set_special(const char *dsname
, zprop_source_t source
,
2396 const char *propname
= nvpair_name(pair
);
2397 zfs_prop_t prop
= zfs_name_to_prop(propname
);
2401 if (prop
== ZPROP_INVAL
) {
2402 if (zfs_prop_userquota(propname
))
2403 return (zfs_prop_set_userquota(dsname
, pair
));
2407 if (nvpair_type(pair
) == DATA_TYPE_NVLIST
) {
2409 VERIFY(nvpair_value_nvlist(pair
, &attrs
) == 0);
2410 VERIFY(nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
2414 if (zfs_prop_get_type(prop
) == PROP_TYPE_STRING
)
2417 VERIFY(0 == nvpair_value_uint64(pair
, &intval
));
2420 case ZFS_PROP_QUOTA
:
2421 err
= dsl_dir_set_quota(dsname
, source
, intval
);
2423 case ZFS_PROP_REFQUOTA
:
2424 err
= dsl_dataset_set_refquota(dsname
, source
, intval
);
2426 case ZFS_PROP_FILESYSTEM_LIMIT
:
2427 case ZFS_PROP_SNAPSHOT_LIMIT
:
2428 if (intval
== UINT64_MAX
) {
2429 /* clearing the limit, just do it */
2432 err
= dsl_dir_activate_fs_ss_limit(dsname
);
2435 * Set err to -1 to force the zfs_set_prop_nvlist code down the
2436 * default path to set the value in the nvlist.
2441 case ZFS_PROP_RESERVATION
:
2442 err
= dsl_dir_set_reservation(dsname
, source
, intval
);
2444 case ZFS_PROP_REFRESERVATION
:
2445 err
= dsl_dataset_set_refreservation(dsname
, source
, intval
);
2447 case ZFS_PROP_VOLSIZE
:
2448 err
= zvol_set_volsize(dsname
, intval
);
2450 case ZFS_PROP_VERSION
:
2454 if ((err
= zfsvfs_hold(dsname
, FTAG
, &zfsvfs
, B_TRUE
)) != 0)
2457 err
= zfs_set_version(zfsvfs
, intval
);
2458 zfsvfs_rele(zfsvfs
, FTAG
);
2460 if (err
== 0 && intval
>= ZPL_VERSION_USERSPACE
) {
2463 zc
= kmem_zalloc(sizeof (zfs_cmd_t
), KM_SLEEP
);
2464 (void) strcpy(zc
->zc_name
, dsname
);
2465 (void) zfs_ioc_userspace_upgrade(zc
);
2466 kmem_free(zc
, sizeof (zfs_cmd_t
));
2478 * This function is best effort. If it fails to set any of the given properties,
2479 * it continues to set as many as it can and returns the last error
2480 * encountered. If the caller provides a non-NULL errlist, it will be filled in
2481 * with the list of names of all the properties that failed along with the
2482 * corresponding error numbers.
2484 * If every property is set successfully, zero is returned and errlist is not
2488 zfs_set_prop_nvlist(const char *dsname
, zprop_source_t source
, nvlist_t
*nvl
,
2496 nvlist_t
*genericnvl
= fnvlist_alloc();
2497 nvlist_t
*retrynvl
= fnvlist_alloc();
2501 while ((pair
= nvlist_next_nvpair(nvl
, pair
)) != NULL
) {
2502 const char *propname
= nvpair_name(pair
);
2503 zfs_prop_t prop
= zfs_name_to_prop(propname
);
2506 /* decode the property value */
2508 if (nvpair_type(pair
) == DATA_TYPE_NVLIST
) {
2510 attrs
= fnvpair_value_nvlist(pair
);
2511 if (nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
2513 err
= SET_ERROR(EINVAL
);
2516 /* Validate value type */
2517 if (err
== 0 && prop
== ZPROP_INVAL
) {
2518 if (zfs_prop_user(propname
)) {
2519 if (nvpair_type(propval
) != DATA_TYPE_STRING
)
2520 err
= SET_ERROR(EINVAL
);
2521 } else if (zfs_prop_userquota(propname
)) {
2522 if (nvpair_type(propval
) !=
2523 DATA_TYPE_UINT64_ARRAY
)
2524 err
= SET_ERROR(EINVAL
);
2526 err
= SET_ERROR(EINVAL
);
2528 } else if (err
== 0) {
2529 if (nvpair_type(propval
) == DATA_TYPE_STRING
) {
2530 if (zfs_prop_get_type(prop
) != PROP_TYPE_STRING
)
2531 err
= SET_ERROR(EINVAL
);
2532 } else if (nvpair_type(propval
) == DATA_TYPE_UINT64
) {
2535 intval
= fnvpair_value_uint64(propval
);
2537 switch (zfs_prop_get_type(prop
)) {
2538 case PROP_TYPE_NUMBER
:
2540 case PROP_TYPE_STRING
:
2541 err
= SET_ERROR(EINVAL
);
2543 case PROP_TYPE_INDEX
:
2544 if (zfs_prop_index_to_string(prop
,
2545 intval
, &unused
) != 0)
2546 err
= SET_ERROR(EINVAL
);
2550 "unknown property type");
2553 err
= SET_ERROR(EINVAL
);
2557 /* Validate permissions */
2559 err
= zfs_check_settable(dsname
, pair
, CRED());
2562 err
= zfs_prop_set_special(dsname
, source
, pair
);
2565 * For better performance we build up a list of
2566 * properties to set in a single transaction.
2568 err
= nvlist_add_nvpair(genericnvl
, pair
);
2569 } else if (err
!= 0 && nvl
!= retrynvl
) {
2571 * This may be a spurious error caused by
2572 * receiving quota and reservation out of order.
2573 * Try again in a second pass.
2575 err
= nvlist_add_nvpair(retrynvl
, pair
);
2580 if (errlist
!= NULL
)
2581 fnvlist_add_int32(errlist
, propname
, err
);
2586 if (nvl
!= retrynvl
&& !nvlist_empty(retrynvl
)) {
2591 if (!nvlist_empty(genericnvl
) &&
2592 dsl_props_set(dsname
, source
, genericnvl
) != 0) {
2594 * If this fails, we still want to set as many properties as we
2595 * can, so try setting them individually.
2598 while ((pair
= nvlist_next_nvpair(genericnvl
, pair
)) != NULL
) {
2599 const char *propname
= nvpair_name(pair
);
2603 if (nvpair_type(pair
) == DATA_TYPE_NVLIST
) {
2605 attrs
= fnvpair_value_nvlist(pair
);
2606 propval
= fnvlist_lookup_nvpair(attrs
,
2610 if (nvpair_type(propval
) == DATA_TYPE_STRING
) {
2611 strval
= fnvpair_value_string(propval
);
2612 err
= dsl_prop_set_string(dsname
, propname
,
2615 intval
= fnvpair_value_uint64(propval
);
2616 err
= dsl_prop_set_int(dsname
, propname
, source
,
2621 if (errlist
!= NULL
) {
2622 fnvlist_add_int32(errlist
, propname
,
2629 nvlist_free(genericnvl
);
2630 nvlist_free(retrynvl
);
2636 * Check that all the properties are valid user properties.
2639 zfs_check_userprops(const char *fsname
, nvlist_t
*nvl
)
2641 nvpair_t
*pair
= NULL
;
2644 while ((pair
= nvlist_next_nvpair(nvl
, pair
)) != NULL
) {
2645 const char *propname
= nvpair_name(pair
);
2647 if (!zfs_prop_user(propname
) ||
2648 nvpair_type(pair
) != DATA_TYPE_STRING
)
2649 return (SET_ERROR(EINVAL
));
2651 if (error
= zfs_secpolicy_write_perms(fsname
,
2652 ZFS_DELEG_PERM_USERPROP
, CRED()))
2655 if (strlen(propname
) >= ZAP_MAXNAMELEN
)
2656 return (SET_ERROR(ENAMETOOLONG
));
2658 if (strlen(fnvpair_value_string(pair
)) >= ZAP_MAXVALUELEN
)
2665 props_skip(nvlist_t
*props
, nvlist_t
*skipped
, nvlist_t
**newprops
)
2669 VERIFY(nvlist_alloc(newprops
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
2672 while ((pair
= nvlist_next_nvpair(props
, pair
)) != NULL
) {
2673 if (nvlist_exists(skipped
, nvpair_name(pair
)))
2676 VERIFY(nvlist_add_nvpair(*newprops
, pair
) == 0);
2681 clear_received_props(const char *dsname
, nvlist_t
*props
,
2685 nvlist_t
*cleared_props
= NULL
;
2686 props_skip(props
, skipped
, &cleared_props
);
2687 if (!nvlist_empty(cleared_props
)) {
2689 * Acts on local properties until the dataset has received
2690 * properties at least once on or after SPA_VERSION_RECVD_PROPS.
2692 zprop_source_t flags
= (ZPROP_SRC_NONE
|
2693 (dsl_prop_get_hasrecvd(dsname
) ? ZPROP_SRC_RECEIVED
: 0));
2694 err
= zfs_set_prop_nvlist(dsname
, flags
, cleared_props
, NULL
);
2696 nvlist_free(cleared_props
);
2702 * zc_name name of filesystem
2703 * zc_value name of property to set
2704 * zc_nvlist_src{_size} nvlist of properties to apply
2705 * zc_cookie received properties flag
2708 * zc_nvlist_dst{_size} error for each unapplied received property
2711 zfs_ioc_set_prop(zfs_cmd_t
*zc
)
2714 boolean_t received
= zc
->zc_cookie
;
2715 zprop_source_t source
= (received
? ZPROP_SRC_RECEIVED
:
2720 if ((error
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
2721 zc
->zc_iflags
, &nvl
)) != 0)
2725 nvlist_t
*origprops
;
2727 if (dsl_prop_get_received(zc
->zc_name
, &origprops
) == 0) {
2728 (void) clear_received_props(zc
->zc_name
,
2730 nvlist_free(origprops
);
2733 error
= dsl_prop_set_hasrecvd(zc
->zc_name
);
2736 errors
= fnvlist_alloc();
2738 error
= zfs_set_prop_nvlist(zc
->zc_name
, source
, nvl
, errors
);
2740 if (zc
->zc_nvlist_dst
!= NULL
&& errors
!= NULL
) {
2741 (void) put_nvlist(zc
, errors
);
2744 nvlist_free(errors
);
2751 * zc_name name of filesystem
2752 * zc_value name of property to inherit
2753 * zc_cookie revert to received value if TRUE
2758 zfs_ioc_inherit_prop(zfs_cmd_t
*zc
)
2760 const char *propname
= zc
->zc_value
;
2761 zfs_prop_t prop
= zfs_name_to_prop(propname
);
2762 boolean_t received
= zc
->zc_cookie
;
2763 zprop_source_t source
= (received
2764 ? ZPROP_SRC_NONE
/* revert to received value, if any */
2765 : ZPROP_SRC_INHERITED
); /* explicitly inherit */
2774 * zfs_prop_set_special() expects properties in the form of an
2775 * nvpair with type info.
2777 if (prop
== ZPROP_INVAL
) {
2778 if (!zfs_prop_user(propname
))
2779 return (SET_ERROR(EINVAL
));
2781 type
= PROP_TYPE_STRING
;
2782 } else if (prop
== ZFS_PROP_VOLSIZE
||
2783 prop
== ZFS_PROP_VERSION
) {
2784 return (SET_ERROR(EINVAL
));
2786 type
= zfs_prop_get_type(prop
);
2789 VERIFY(nvlist_alloc(&dummy
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
2792 case PROP_TYPE_STRING
:
2793 VERIFY(0 == nvlist_add_string(dummy
, propname
, ""));
2795 case PROP_TYPE_NUMBER
:
2796 case PROP_TYPE_INDEX
:
2797 VERIFY(0 == nvlist_add_uint64(dummy
, propname
, 0));
2801 return (SET_ERROR(EINVAL
));
2804 pair
= nvlist_next_nvpair(dummy
, NULL
);
2805 err
= zfs_prop_set_special(zc
->zc_name
, source
, pair
);
2808 return (err
); /* special property already handled */
2811 * Only check this in the non-received case. We want to allow
2812 * 'inherit -S' to revert non-inheritable properties like quota
2813 * and reservation to the received or default values even though
2814 * they are not considered inheritable.
2816 if (prop
!= ZPROP_INVAL
&& !zfs_prop_inheritable(prop
))
2817 return (SET_ERROR(EINVAL
));
2820 /* property name has been validated by zfs_secpolicy_inherit_prop() */
2821 return (dsl_prop_inherit(zc
->zc_name
, zc
->zc_value
, source
));
2825 zfs_ioc_pool_set_props(zfs_cmd_t
*zc
)
2832 if (error
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
2833 zc
->zc_iflags
, &props
))
2837 * If the only property is the configfile, then just do a spa_lookup()
2838 * to handle the faulted case.
2840 pair
= nvlist_next_nvpair(props
, NULL
);
2841 if (pair
!= NULL
&& strcmp(nvpair_name(pair
),
2842 zpool_prop_to_name(ZPOOL_PROP_CACHEFILE
)) == 0 &&
2843 nvlist_next_nvpair(props
, pair
) == NULL
) {
2844 mutex_enter(&spa_namespace_lock
);
2845 if ((spa
= spa_lookup(zc
->zc_name
)) != NULL
) {
2846 spa_configfile_set(spa
, props
, B_FALSE
);
2847 spa_config_sync(spa
, B_FALSE
, B_TRUE
);
2849 mutex_exit(&spa_namespace_lock
);
2856 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0) {
2861 error
= spa_prop_set(spa
, props
);
2864 spa_close(spa
, FTAG
);
2870 zfs_ioc_pool_get_props(zfs_cmd_t
*zc
)
2874 nvlist_t
*nvp
= NULL
;
2876 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0) {
2878 * If the pool is faulted, there may be properties we can still
2879 * get (such as altroot and cachefile), so attempt to get them
2882 mutex_enter(&spa_namespace_lock
);
2883 if ((spa
= spa_lookup(zc
->zc_name
)) != NULL
)
2884 error
= spa_prop_get(spa
, &nvp
);
2885 mutex_exit(&spa_namespace_lock
);
2887 error
= spa_prop_get(spa
, &nvp
);
2888 spa_close(spa
, FTAG
);
2891 if (error
== 0 && zc
->zc_nvlist_dst
!= NULL
)
2892 error
= put_nvlist(zc
, nvp
);
2894 error
= SET_ERROR(EFAULT
);
2902 * zc_name name of filesystem
2903 * zc_nvlist_src{_size} nvlist of delegated permissions
2904 * zc_perm_action allow/unallow flag
2909 zfs_ioc_set_fsacl(zfs_cmd_t
*zc
)
2912 nvlist_t
*fsaclnv
= NULL
;
2914 if ((error
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
2915 zc
->zc_iflags
, &fsaclnv
)) != 0)
2919 * Verify nvlist is constructed correctly
2921 if ((error
= zfs_deleg_verify_nvlist(fsaclnv
)) != 0) {
2922 nvlist_free(fsaclnv
);
2923 return (SET_ERROR(EINVAL
));
2927 * If we don't have PRIV_SYS_MOUNT, then validate
2928 * that user is allowed to hand out each permission in
2932 error
= secpolicy_zfs(CRED());
2934 if (zc
->zc_perm_action
== B_FALSE
) {
2935 error
= dsl_deleg_can_allow(zc
->zc_name
,
2938 error
= dsl_deleg_can_unallow(zc
->zc_name
,
2944 error
= dsl_deleg_set(zc
->zc_name
, fsaclnv
, zc
->zc_perm_action
);
2946 nvlist_free(fsaclnv
);
2952 * zc_name name of filesystem
2955 * zc_nvlist_src{_size} nvlist of delegated permissions
2958 zfs_ioc_get_fsacl(zfs_cmd_t
*zc
)
2963 if ((error
= dsl_deleg_get(zc
->zc_name
, &nvp
)) == 0) {
2964 error
= put_nvlist(zc
, nvp
);
2972 * Search the vfs list for a specified resource. Returns a pointer to it
2973 * or NULL if no suitable entry is found. The caller of this routine
2974 * is responsible for releasing the returned vfs pointer.
2977 zfs_get_vfs(const char *resource
)
2980 struct vfs
*vfs_found
= NULL
;
2982 vfs_list_read_lock();
2985 if (strcmp(refstr_value(vfsp
->vfs_resource
), resource
) == 0) {
2990 vfsp
= vfsp
->vfs_next
;
2991 } while (vfsp
!= rootvfs
);
2998 zfs_create_cb(objset_t
*os
, void *arg
, cred_t
*cr
, dmu_tx_t
*tx
)
3000 zfs_creat_t
*zct
= arg
;
3002 zfs_create_fs(os
, cr
, zct
->zct_zplprops
, tx
);
3005 #define ZFS_PROP_UNDEFINED ((uint64_t)-1)
3009 * os parent objset pointer (NULL if root fs)
3010 * fuids_ok fuids allowed in this version of the spa?
3011 * sa_ok SAs allowed in this version of the spa?
3012 * createprops list of properties requested by creator
3015 * zplprops values for the zplprops we attach to the master node object
3016 * is_ci true if requested file system will be purely case-insensitive
3018 * Determine the settings for utf8only, normalization and
3019 * casesensitivity. Specific values may have been requested by the
3020 * creator and/or we can inherit values from the parent dataset. If
3021 * the file system is of too early a vintage, a creator can not
3022 * request settings for these properties, even if the requested
3023 * setting is the default value. We don't actually want to create dsl
3024 * properties for these, so remove them from the source nvlist after
3028 zfs_fill_zplprops_impl(objset_t
*os
, uint64_t zplver
,
3029 boolean_t fuids_ok
, boolean_t sa_ok
, nvlist_t
*createprops
,
3030 nvlist_t
*zplprops
, boolean_t
*is_ci
)
3032 uint64_t sense
= ZFS_PROP_UNDEFINED
;
3033 uint64_t norm
= ZFS_PROP_UNDEFINED
;
3034 uint64_t u8
= ZFS_PROP_UNDEFINED
;
3036 ASSERT(zplprops
!= NULL
);
3039 * Pull out creator prop choices, if any.
3042 (void) nvlist_lookup_uint64(createprops
,
3043 zfs_prop_to_name(ZFS_PROP_VERSION
), &zplver
);
3044 (void) nvlist_lookup_uint64(createprops
,
3045 zfs_prop_to_name(ZFS_PROP_NORMALIZE
), &norm
);
3046 (void) nvlist_remove_all(createprops
,
3047 zfs_prop_to_name(ZFS_PROP_NORMALIZE
));
3048 (void) nvlist_lookup_uint64(createprops
,
3049 zfs_prop_to_name(ZFS_PROP_UTF8ONLY
), &u8
);
3050 (void) nvlist_remove_all(createprops
,
3051 zfs_prop_to_name(ZFS_PROP_UTF8ONLY
));
3052 (void) nvlist_lookup_uint64(createprops
,
3053 zfs_prop_to_name(ZFS_PROP_CASE
), &sense
);
3054 (void) nvlist_remove_all(createprops
,
3055 zfs_prop_to_name(ZFS_PROP_CASE
));
3059 * If the zpl version requested is whacky or the file system
3060 * or pool is version is too "young" to support normalization
3061 * and the creator tried to set a value for one of the props,
3064 if ((zplver
< ZPL_VERSION_INITIAL
|| zplver
> ZPL_VERSION
) ||
3065 (zplver
>= ZPL_VERSION_FUID
&& !fuids_ok
) ||
3066 (zplver
>= ZPL_VERSION_SA
&& !sa_ok
) ||
3067 (zplver
< ZPL_VERSION_NORMALIZATION
&&
3068 (norm
!= ZFS_PROP_UNDEFINED
|| u8
!= ZFS_PROP_UNDEFINED
||
3069 sense
!= ZFS_PROP_UNDEFINED
)))
3070 return (SET_ERROR(ENOTSUP
));
3073 * Put the version in the zplprops
3075 VERIFY(nvlist_add_uint64(zplprops
,
3076 zfs_prop_to_name(ZFS_PROP_VERSION
), zplver
) == 0);
3078 if (norm
== ZFS_PROP_UNDEFINED
)
3079 VERIFY(zfs_get_zplprop(os
, ZFS_PROP_NORMALIZE
, &norm
) == 0);
3080 VERIFY(nvlist_add_uint64(zplprops
,
3081 zfs_prop_to_name(ZFS_PROP_NORMALIZE
), norm
) == 0);
3084 * If we're normalizing, names must always be valid UTF-8 strings.
3088 if (u8
== ZFS_PROP_UNDEFINED
)
3089 VERIFY(zfs_get_zplprop(os
, ZFS_PROP_UTF8ONLY
, &u8
) == 0);
3090 VERIFY(nvlist_add_uint64(zplprops
,
3091 zfs_prop_to_name(ZFS_PROP_UTF8ONLY
), u8
) == 0);
3093 if (sense
== ZFS_PROP_UNDEFINED
)
3094 VERIFY(zfs_get_zplprop(os
, ZFS_PROP_CASE
, &sense
) == 0);
3095 VERIFY(nvlist_add_uint64(zplprops
,
3096 zfs_prop_to_name(ZFS_PROP_CASE
), sense
) == 0);
3099 *is_ci
= (sense
== ZFS_CASE_INSENSITIVE
);
3105 zfs_fill_zplprops(const char *dataset
, nvlist_t
*createprops
,
3106 nvlist_t
*zplprops
, boolean_t
*is_ci
)
3108 boolean_t fuids_ok
, sa_ok
;
3109 uint64_t zplver
= ZPL_VERSION
;
3110 objset_t
*os
= NULL
;
3111 char parentname
[ZFS_MAX_DATASET_NAME_LEN
];
3117 (void) strlcpy(parentname
, dataset
, sizeof (parentname
));
3118 cp
= strrchr(parentname
, '/');
3122 if ((error
= spa_open(dataset
, &spa
, FTAG
)) != 0)
3125 spa_vers
= spa_version(spa
);
3126 spa_close(spa
, FTAG
);
3128 zplver
= zfs_zpl_version_map(spa_vers
);
3129 fuids_ok
= (zplver
>= ZPL_VERSION_FUID
);
3130 sa_ok
= (zplver
>= ZPL_VERSION_SA
);
3133 * Open parent object set so we can inherit zplprop values.
3135 if ((error
= dmu_objset_hold(parentname
, FTAG
, &os
)) != 0)
3138 error
= zfs_fill_zplprops_impl(os
, zplver
, fuids_ok
, sa_ok
, createprops
,
3140 dmu_objset_rele(os
, FTAG
);
3145 zfs_fill_zplprops_root(uint64_t spa_vers
, nvlist_t
*createprops
,
3146 nvlist_t
*zplprops
, boolean_t
*is_ci
)
3150 uint64_t zplver
= ZPL_VERSION
;
3153 zplver
= zfs_zpl_version_map(spa_vers
);
3154 fuids_ok
= (zplver
>= ZPL_VERSION_FUID
);
3155 sa_ok
= (zplver
>= ZPL_VERSION_SA
);
3157 error
= zfs_fill_zplprops_impl(NULL
, zplver
, fuids_ok
, sa_ok
,
3158 createprops
, zplprops
, is_ci
);
3164 * "type" -> dmu_objset_type_t (int32)
3165 * (optional) "props" -> { prop -> value }
3168 * outnvl: propname -> error code (int32)
3171 zfs_ioc_create(const char *fsname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
3174 zfs_creat_t zct
= { 0 };
3175 nvlist_t
*nvprops
= NULL
;
3176 void (*cbfunc
)(objset_t
*os
, void *arg
, cred_t
*cr
, dmu_tx_t
*tx
);
3178 dmu_objset_type_t type
;
3179 boolean_t is_insensitive
= B_FALSE
;
3181 if (nvlist_lookup_int32(innvl
, "type", &type32
) != 0)
3182 return (SET_ERROR(EINVAL
));
3184 (void) nvlist_lookup_nvlist(innvl
, "props", &nvprops
);
3188 cbfunc
= zfs_create_cb
;
3192 cbfunc
= zvol_create_cb
;
3199 if (strchr(fsname
, '@') ||
3200 strchr(fsname
, '%'))
3201 return (SET_ERROR(EINVAL
));
3203 zct
.zct_props
= nvprops
;
3206 return (SET_ERROR(EINVAL
));
3208 if (type
== DMU_OST_ZVOL
) {
3209 uint64_t volsize
, volblocksize
;
3211 if (nvprops
== NULL
)
3212 return (SET_ERROR(EINVAL
));
3213 if (nvlist_lookup_uint64(nvprops
,
3214 zfs_prop_to_name(ZFS_PROP_VOLSIZE
), &volsize
) != 0)
3215 return (SET_ERROR(EINVAL
));
3217 if ((error
= nvlist_lookup_uint64(nvprops
,
3218 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE
),
3219 &volblocksize
)) != 0 && error
!= ENOENT
)
3220 return (SET_ERROR(EINVAL
));
3223 volblocksize
= zfs_prop_default_numeric(
3224 ZFS_PROP_VOLBLOCKSIZE
);
3226 if ((error
= zvol_check_volblocksize(
3227 volblocksize
)) != 0 ||
3228 (error
= zvol_check_volsize(volsize
,
3229 volblocksize
)) != 0)
3231 } else if (type
== DMU_OST_ZFS
) {
3235 * We have to have normalization and
3236 * case-folding flags correct when we do the
3237 * file system creation, so go figure them out
3240 VERIFY(nvlist_alloc(&zct
.zct_zplprops
,
3241 NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
3242 error
= zfs_fill_zplprops(fsname
, nvprops
,
3243 zct
.zct_zplprops
, &is_insensitive
);
3245 nvlist_free(zct
.zct_zplprops
);
3250 error
= dmu_objset_create(fsname
, type
,
3251 is_insensitive
? DS_FLAG_CI_DATASET
: 0, cbfunc
, &zct
);
3252 nvlist_free(zct
.zct_zplprops
);
3255 * It would be nice to do this atomically.
3258 error
= zfs_set_prop_nvlist(fsname
, ZPROP_SRC_LOCAL
,
3261 (void) dsl_destroy_head(fsname
);
3268 * "origin" -> name of origin snapshot
3269 * (optional) "props" -> { prop -> value }
3272 * outnvl: propname -> error code (int32)
3275 zfs_ioc_clone(const char *fsname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
3278 nvlist_t
*nvprops
= NULL
;
3281 if (nvlist_lookup_string(innvl
, "origin", &origin_name
) != 0)
3282 return (SET_ERROR(EINVAL
));
3283 (void) nvlist_lookup_nvlist(innvl
, "props", &nvprops
);
3285 if (strchr(fsname
, '@') ||
3286 strchr(fsname
, '%'))
3287 return (SET_ERROR(EINVAL
));
3289 if (dataset_namecheck(origin_name
, NULL
, NULL
) != 0)
3290 return (SET_ERROR(EINVAL
));
3291 error
= dmu_objset_clone(fsname
, origin_name
);
3296 * It would be nice to do this atomically.
3299 error
= zfs_set_prop_nvlist(fsname
, ZPROP_SRC_LOCAL
,
3302 (void) dsl_destroy_head(fsname
);
3309 * "snaps" -> { snapshot1, snapshot2 }
3310 * (optional) "props" -> { prop -> value (string) }
3313 * outnvl: snapshot -> error code (int32)
3316 zfs_ioc_snapshot(const char *poolname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
3319 nvlist_t
*props
= NULL
;
3323 (void) nvlist_lookup_nvlist(innvl
, "props", &props
);
3324 if ((error
= zfs_check_userprops(poolname
, props
)) != 0)
3327 if (!nvlist_empty(props
) &&
3328 zfs_earlier_version(poolname
, SPA_VERSION_SNAP_PROPS
))
3329 return (SET_ERROR(ENOTSUP
));
3331 if (nvlist_lookup_nvlist(innvl
, "snaps", &snaps
) != 0)
3332 return (SET_ERROR(EINVAL
));
3333 poollen
= strlen(poolname
);
3334 for (pair
= nvlist_next_nvpair(snaps
, NULL
); pair
!= NULL
;
3335 pair
= nvlist_next_nvpair(snaps
, pair
)) {
3336 const char *name
= nvpair_name(pair
);
3337 const char *cp
= strchr(name
, '@');
3340 * The snap name must contain an @, and the part after it must
3341 * contain only valid characters.
3344 zfs_component_namecheck(cp
+ 1, NULL
, NULL
) != 0)
3345 return (SET_ERROR(EINVAL
));
3348 * The snap must be in the specified pool.
3350 if (strncmp(name
, poolname
, poollen
) != 0 ||
3351 (name
[poollen
] != '/' && name
[poollen
] != '@'))
3352 return (SET_ERROR(EXDEV
));
3354 /* This must be the only snap of this fs. */
3355 for (nvpair_t
*pair2
= nvlist_next_nvpair(snaps
, pair
);
3356 pair2
!= NULL
; pair2
= nvlist_next_nvpair(snaps
, pair2
)) {
3357 if (strncmp(name
, nvpair_name(pair2
), cp
- name
+ 1)
3359 return (SET_ERROR(EXDEV
));
3364 error
= dsl_dataset_snapshot(snaps
, props
, outnvl
);
3369 * innvl: "message" -> string
3373 zfs_ioc_log_history(const char *unused
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
3381 * The poolname in the ioctl is not set, we get it from the TSD,
3382 * which was set at the end of the last successful ioctl that allows
3383 * logging. The secpolicy func already checked that it is set.
3384 * Only one log ioctl is allowed after each successful ioctl, so
3385 * we clear the TSD here.
3387 poolname
= tsd_get(zfs_allow_log_key
);
3388 (void) tsd_set(zfs_allow_log_key
, NULL
);
3389 error
= spa_open(poolname
, &spa
, FTAG
);
3394 if (nvlist_lookup_string(innvl
, "message", &message
) != 0) {
3395 spa_close(spa
, FTAG
);
3396 return (SET_ERROR(EINVAL
));
3399 if (spa_version(spa
) < SPA_VERSION_ZPOOL_HISTORY
) {
3400 spa_close(spa
, FTAG
);
3401 return (SET_ERROR(ENOTSUP
));
3404 error
= spa_history_log(spa
, message
);
3405 spa_close(spa
, FTAG
);
3410 * The dp_config_rwlock must not be held when calling this, because the
3411 * unmount may need to write out data.
3413 * This function is best-effort. Callers must deal gracefully if it
3414 * remains mounted (or is remounted after this call).
3416 * Returns 0 if the argument is not a snapshot, or it is not currently a
3417 * filesystem, or we were able to unmount it. Returns error code otherwise.
3420 zfs_unmount_snap(const char *snapname
)
3426 if (strchr(snapname
, '@') == NULL
)
3429 vfsp
= zfs_get_vfs(snapname
);
3433 zfsvfs
= vfsp
->vfs_data
;
3434 ASSERT(!dsl_pool_config_held(dmu_objset_pool(zfsvfs
->z_os
)));
3436 err
= vn_vfswlock(vfsp
->vfs_vnodecovered
);
3439 return (SET_ERROR(err
));
3442 * Always force the unmount for snapshots.
3444 (void) dounmount(vfsp
, MS_FORCE
, kcred
);
3450 zfs_unmount_snap_cb(const char *snapname
, void *arg
)
3452 return (zfs_unmount_snap(snapname
));
3456 * When a clone is destroyed, its origin may also need to be destroyed,
3457 * in which case it must be unmounted. This routine will do that unmount
3461 zfs_destroy_unmount_origin(const char *fsname
)
3467 error
= dmu_objset_hold(fsname
, FTAG
, &os
);
3470 ds
= dmu_objset_ds(os
);
3471 if (dsl_dir_is_clone(ds
->ds_dir
) && DS_IS_DEFER_DESTROY(ds
->ds_prev
)) {
3472 char originname
[ZFS_MAX_DATASET_NAME_LEN
];
3473 dsl_dataset_name(ds
->ds_prev
, originname
);
3474 dmu_objset_rele(os
, FTAG
);
3475 (void) zfs_unmount_snap(originname
);
3477 dmu_objset_rele(os
, FTAG
);
3483 * "snaps" -> { snapshot1, snapshot2 }
3484 * (optional boolean) "defer"
3487 * outnvl: snapshot -> error code (int32)
3492 zfs_ioc_destroy_snaps(const char *poolname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
3498 if (nvlist_lookup_nvlist(innvl
, "snaps", &snaps
) != 0)
3499 return (SET_ERROR(EINVAL
));
3500 defer
= nvlist_exists(innvl
, "defer");
3502 for (pair
= nvlist_next_nvpair(snaps
, NULL
); pair
!= NULL
;
3503 pair
= nvlist_next_nvpair(snaps
, pair
)) {
3504 (void) zfs_unmount_snap(nvpair_name(pair
));
3507 return (dsl_destroy_snapshots_nvl(snaps
, defer
, outnvl
));
3511 * Create bookmarks. Bookmark names are of the form <fs>#<bmark>.
3512 * All bookmarks must be in the same pool.
3515 * bookmark1 -> snapshot1, bookmark2 -> snapshot2
3518 * outnvl: bookmark -> error code (int32)
3523 zfs_ioc_bookmark(const char *poolname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
3525 for (nvpair_t
*pair
= nvlist_next_nvpair(innvl
, NULL
);
3526 pair
!= NULL
; pair
= nvlist_next_nvpair(innvl
, pair
)) {
3530 * Verify the snapshot argument.
3532 if (nvpair_value_string(pair
, &snap_name
) != 0)
3533 return (SET_ERROR(EINVAL
));
3536 /* Verify that the keys (bookmarks) are unique */
3537 for (nvpair_t
*pair2
= nvlist_next_nvpair(innvl
, pair
);
3538 pair2
!= NULL
; pair2
= nvlist_next_nvpair(innvl
, pair2
)) {
3539 if (strcmp(nvpair_name(pair
), nvpair_name(pair2
)) == 0)
3540 return (SET_ERROR(EINVAL
));
3544 return (dsl_bookmark_create(innvl
, outnvl
));
3549 * property 1, property 2, ...
3553 * bookmark name 1 -> { property 1, property 2, ... },
3554 * bookmark name 2 -> { property 1, property 2, ... }
3559 zfs_ioc_get_bookmarks(const char *fsname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
3561 return (dsl_get_bookmarks(fsname
, innvl
, outnvl
));
3566 * bookmark name 1, bookmark name 2
3569 * outnvl: bookmark -> error code (int32)
3573 zfs_ioc_destroy_bookmarks(const char *poolname
, nvlist_t
*innvl
,
3578 poollen
= strlen(poolname
);
3579 for (nvpair_t
*pair
= nvlist_next_nvpair(innvl
, NULL
);
3580 pair
!= NULL
; pair
= nvlist_next_nvpair(innvl
, pair
)) {
3581 const char *name
= nvpair_name(pair
);
3582 const char *cp
= strchr(name
, '#');
3585 * The bookmark name must contain an #, and the part after it
3586 * must contain only valid characters.
3589 zfs_component_namecheck(cp
+ 1, NULL
, NULL
) != 0)
3590 return (SET_ERROR(EINVAL
));
3593 * The bookmark must be in the specified pool.
3595 if (strncmp(name
, poolname
, poollen
) != 0 ||
3596 (name
[poollen
] != '/' && name
[poollen
] != '#'))
3597 return (SET_ERROR(EXDEV
));
3600 error
= dsl_bookmark_destroy(innvl
, outnvl
);
3606 * zc_name name of dataset to destroy
3607 * zc_objset_type type of objset
3608 * zc_defer_destroy mark for deferred destroy
3613 zfs_ioc_destroy(zfs_cmd_t
*zc
)
3617 if (zc
->zc_objset_type
== DMU_OST_ZFS
) {
3618 err
= zfs_unmount_snap(zc
->zc_name
);
3623 if (strchr(zc
->zc_name
, '@'))
3624 err
= dsl_destroy_snapshot(zc
->zc_name
, zc
->zc_defer_destroy
);
3626 err
= dsl_destroy_head(zc
->zc_name
);
3627 if (zc
->zc_objset_type
== DMU_OST_ZVOL
&& err
== 0)
3628 (void) zvol_remove_minor(zc
->zc_name
);
3633 * fsname is name of dataset to rollback (to most recent snapshot)
3635 * innvl is not used.
3637 * outnvl: "target" -> name of most recent snapshot
3642 zfs_ioc_rollback(const char *fsname
, nvlist_t
*args
, nvlist_t
*outnvl
)
3647 if (getzfsvfs(fsname
, &zfsvfs
) == 0) {
3648 error
= zfs_suspend_fs(zfsvfs
);
3652 error
= dsl_dataset_rollback(fsname
, zfsvfs
, outnvl
);
3653 resume_err
= zfs_resume_fs(zfsvfs
, fsname
);
3654 error
= error
? error
: resume_err
;
3656 VFS_RELE(zfsvfs
->z_vfs
);
3658 error
= dsl_dataset_rollback(fsname
, NULL
, outnvl
);
3664 recursive_unmount(const char *fsname
, void *arg
)
3666 const char *snapname
= arg
;
3667 char fullname
[ZFS_MAX_DATASET_NAME_LEN
];
3669 (void) snprintf(fullname
, sizeof (fullname
), "%s@%s", fsname
, snapname
);
3670 return (zfs_unmount_snap(fullname
));
3675 * zc_name old name of dataset
3676 * zc_value new name of dataset
3677 * zc_cookie recursive flag (only valid for snapshots)
3682 zfs_ioc_rename(zfs_cmd_t
*zc
)
3684 boolean_t recursive
= zc
->zc_cookie
& 1;
3687 zc
->zc_value
[sizeof (zc
->zc_value
) - 1] = '\0';
3688 if (dataset_namecheck(zc
->zc_value
, NULL
, NULL
) != 0 ||
3689 strchr(zc
->zc_value
, '%'))
3690 return (SET_ERROR(EINVAL
));
3692 at
= strchr(zc
->zc_name
, '@');
3694 /* snaps must be in same fs */
3697 if (strncmp(zc
->zc_name
, zc
->zc_value
, at
- zc
->zc_name
+ 1))
3698 return (SET_ERROR(EXDEV
));
3700 if (zc
->zc_objset_type
== DMU_OST_ZFS
) {
3701 error
= dmu_objset_find(zc
->zc_name
,
3702 recursive_unmount
, at
+ 1,
3703 recursive
? DS_FIND_CHILDREN
: 0);
3709 error
= dsl_dataset_rename_snapshot(zc
->zc_name
,
3710 at
+ 1, strchr(zc
->zc_value
, '@') + 1, recursive
);
3715 if (zc
->zc_objset_type
== DMU_OST_ZVOL
)
3716 (void) zvol_remove_minor(zc
->zc_name
);
3717 return (dsl_dir_rename(zc
->zc_name
, zc
->zc_value
));
3722 zfs_check_settable(const char *dsname
, nvpair_t
*pair
, cred_t
*cr
)
3724 const char *propname
= nvpair_name(pair
);
3725 boolean_t issnap
= (strchr(dsname
, '@') != NULL
);
3726 zfs_prop_t prop
= zfs_name_to_prop(propname
);
3730 if (prop
== ZPROP_INVAL
) {
3731 if (zfs_prop_user(propname
)) {
3732 if (err
= zfs_secpolicy_write_perms(dsname
,
3733 ZFS_DELEG_PERM_USERPROP
, cr
))
3738 if (!issnap
&& zfs_prop_userquota(propname
)) {
3739 const char *perm
= NULL
;
3740 const char *uq_prefix
=
3741 zfs_userquota_prop_prefixes
[ZFS_PROP_USERQUOTA
];
3742 const char *gq_prefix
=
3743 zfs_userquota_prop_prefixes
[ZFS_PROP_GROUPQUOTA
];
3745 if (strncmp(propname
, uq_prefix
,
3746 strlen(uq_prefix
)) == 0) {
3747 perm
= ZFS_DELEG_PERM_USERQUOTA
;
3748 } else if (strncmp(propname
, gq_prefix
,
3749 strlen(gq_prefix
)) == 0) {
3750 perm
= ZFS_DELEG_PERM_GROUPQUOTA
;
3752 /* USERUSED and GROUPUSED are read-only */
3753 return (SET_ERROR(EINVAL
));
3756 if (err
= zfs_secpolicy_write_perms(dsname
, perm
, cr
))
3761 return (SET_ERROR(EINVAL
));
3765 return (SET_ERROR(EINVAL
));
3767 if (nvpair_type(pair
) == DATA_TYPE_NVLIST
) {
3769 * dsl_prop_get_all_impl() returns properties in this
3773 VERIFY(nvpair_value_nvlist(pair
, &attrs
) == 0);
3774 VERIFY(nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
3779 * Check that this value is valid for this pool version
3782 case ZFS_PROP_COMPRESSION
:
3784 * If the user specified gzip compression, make sure
3785 * the SPA supports it. We ignore any errors here since
3786 * we'll catch them later.
3788 if (nvpair_value_uint64(pair
, &intval
) == 0) {
3789 if (intval
>= ZIO_COMPRESS_GZIP_1
&&
3790 intval
<= ZIO_COMPRESS_GZIP_9
&&
3791 zfs_earlier_version(dsname
,
3792 SPA_VERSION_GZIP_COMPRESSION
)) {
3793 return (SET_ERROR(ENOTSUP
));
3796 if (intval
== ZIO_COMPRESS_ZLE
&&
3797 zfs_earlier_version(dsname
,
3798 SPA_VERSION_ZLE_COMPRESSION
))
3799 return (SET_ERROR(ENOTSUP
));
3801 if (intval
== ZIO_COMPRESS_LZ4
) {
3804 if ((err
= spa_open(dsname
, &spa
, FTAG
)) != 0)
3807 if (!spa_feature_is_enabled(spa
,
3808 SPA_FEATURE_LZ4_COMPRESS
)) {
3809 spa_close(spa
, FTAG
);
3810 return (SET_ERROR(ENOTSUP
));
3812 spa_close(spa
, FTAG
);
3816 * If this is a bootable dataset then
3817 * verify that the compression algorithm
3818 * is supported for booting. We must return
3819 * something other than ENOTSUP since it
3820 * implies a downrev pool version.
3822 if (zfs_is_bootfs(dsname
) &&
3823 !BOOTFS_COMPRESS_VALID(intval
)) {
3824 return (SET_ERROR(ERANGE
));
3829 case ZFS_PROP_COPIES
:
3830 if (zfs_earlier_version(dsname
, SPA_VERSION_DITTO_BLOCKS
))
3831 return (SET_ERROR(ENOTSUP
));
3834 case ZFS_PROP_RECORDSIZE
:
3835 /* Record sizes above 128k need the feature to be enabled */
3836 if (nvpair_value_uint64(pair
, &intval
) == 0 &&
3837 intval
> SPA_OLD_MAXBLOCKSIZE
) {
3841 * We don't allow setting the property above 1MB,
3842 * unless the tunable has been changed.
3844 if (intval
> zfs_max_recordsize
||
3845 intval
> SPA_MAXBLOCKSIZE
)
3846 return (SET_ERROR(ERANGE
));
3848 if ((err
= spa_open(dsname
, &spa
, FTAG
)) != 0)
3851 if (!spa_feature_is_enabled(spa
,
3852 SPA_FEATURE_LARGE_BLOCKS
)) {
3853 spa_close(spa
, FTAG
);
3854 return (SET_ERROR(ENOTSUP
));
3856 spa_close(spa
, FTAG
);
3860 case ZFS_PROP_SHARESMB
:
3861 if (zpl_earlier_version(dsname
, ZPL_VERSION_FUID
))
3862 return (SET_ERROR(ENOTSUP
));
3865 case ZFS_PROP_ACLINHERIT
:
3866 if (nvpair_type(pair
) == DATA_TYPE_UINT64
&&
3867 nvpair_value_uint64(pair
, &intval
) == 0) {
3868 if (intval
== ZFS_ACL_PASSTHROUGH_X
&&
3869 zfs_earlier_version(dsname
,
3870 SPA_VERSION_PASSTHROUGH_X
))
3871 return (SET_ERROR(ENOTSUP
));
3875 case ZFS_PROP_CHECKSUM
:
3876 case ZFS_PROP_DEDUP
:
3878 spa_feature_t feature
;
3881 /* dedup feature version checks */
3882 if (prop
== ZFS_PROP_DEDUP
&&
3883 zfs_earlier_version(dsname
, SPA_VERSION_DEDUP
))
3884 return (SET_ERROR(ENOTSUP
));
3886 if (nvpair_value_uint64(pair
, &intval
) != 0)
3887 return (SET_ERROR(EINVAL
));
3889 /* check prop value is enabled in features */
3890 feature
= zio_checksum_to_feature(intval
& ZIO_CHECKSUM_MASK
);
3891 if (feature
== SPA_FEATURE_NONE
)
3894 if ((err
= spa_open(dsname
, &spa
, FTAG
)) != 0)
3897 * Salted checksums are not supported on root pools.
3899 if (spa_bootfs(spa
) != 0 &&
3900 intval
< ZIO_CHECKSUM_FUNCTIONS
&&
3901 (zio_checksum_table
[intval
].ci_flags
&
3902 ZCHECKSUM_FLAG_SALTED
)) {
3903 spa_close(spa
, FTAG
);
3904 return (SET_ERROR(ERANGE
));
3906 if (!spa_feature_is_enabled(spa
, feature
)) {
3907 spa_close(spa
, FTAG
);
3908 return (SET_ERROR(ENOTSUP
));
3910 spa_close(spa
, FTAG
);
3915 return (zfs_secpolicy_setprop(dsname
, prop
, pair
, CRED()));
3919 * Checks for a race condition to make sure we don't increment a feature flag
3923 zfs_prop_activate_feature_check(void *arg
, dmu_tx_t
*tx
)
3925 spa_t
*spa
= dmu_tx_pool(tx
)->dp_spa
;
3926 spa_feature_t
*featurep
= arg
;
3928 if (!spa_feature_is_active(spa
, *featurep
))
3931 return (SET_ERROR(EBUSY
));
3935 * The callback invoked on feature activation in the sync task caused by
3936 * zfs_prop_activate_feature.
3939 zfs_prop_activate_feature_sync(void *arg
, dmu_tx_t
*tx
)
3941 spa_t
*spa
= dmu_tx_pool(tx
)->dp_spa
;
3942 spa_feature_t
*featurep
= arg
;
3944 spa_feature_incr(spa
, *featurep
, tx
);
3948 * Activates a feature on a pool in response to a property setting. This
3949 * creates a new sync task which modifies the pool to reflect the feature
3953 zfs_prop_activate_feature(spa_t
*spa
, spa_feature_t feature
)
3957 /* EBUSY here indicates that the feature is already active */
3958 err
= dsl_sync_task(spa_name(spa
),
3959 zfs_prop_activate_feature_check
, zfs_prop_activate_feature_sync
,
3960 &feature
, 2, ZFS_SPACE_CHECK_RESERVED
);
3962 if (err
!= 0 && err
!= EBUSY
)
3969 * Removes properties from the given props list that fail permission checks
3970 * needed to clear them and to restore them in case of a receive error. For each
3971 * property, make sure we have both set and inherit permissions.
3973 * Returns the first error encountered if any permission checks fail. If the
3974 * caller provides a non-NULL errlist, it also gives the complete list of names
3975 * of all the properties that failed a permission check along with the
3976 * corresponding error numbers. The caller is responsible for freeing the
3979 * If every property checks out successfully, zero is returned and the list
3980 * pointed at by errlist is NULL.
3983 zfs_check_clearable(char *dataset
, nvlist_t
*props
, nvlist_t
**errlist
)
3986 nvpair_t
*pair
, *next_pair
;
3993 VERIFY(nvlist_alloc(&errors
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
3995 zc
= kmem_alloc(sizeof (zfs_cmd_t
), KM_SLEEP
);
3996 (void) strcpy(zc
->zc_name
, dataset
);
3997 pair
= nvlist_next_nvpair(props
, NULL
);
3998 while (pair
!= NULL
) {
3999 next_pair
= nvlist_next_nvpair(props
, pair
);
4001 (void) strcpy(zc
->zc_value
, nvpair_name(pair
));
4002 if ((err
= zfs_check_settable(dataset
, pair
, CRED())) != 0 ||
4003 (err
= zfs_secpolicy_inherit_prop(zc
, NULL
, CRED())) != 0) {
4004 VERIFY(nvlist_remove_nvpair(props
, pair
) == 0);
4005 VERIFY(nvlist_add_int32(errors
,
4006 zc
->zc_value
, err
) == 0);
4010 kmem_free(zc
, sizeof (zfs_cmd_t
));
4012 if ((pair
= nvlist_next_nvpair(errors
, NULL
)) == NULL
) {
4013 nvlist_free(errors
);
4016 VERIFY(nvpair_value_int32(pair
, &rv
) == 0);
4019 if (errlist
== NULL
)
4020 nvlist_free(errors
);
4028 propval_equals(nvpair_t
*p1
, nvpair_t
*p2
)
4030 if (nvpair_type(p1
) == DATA_TYPE_NVLIST
) {
4031 /* dsl_prop_get_all_impl() format */
4033 VERIFY(nvpair_value_nvlist(p1
, &attrs
) == 0);
4034 VERIFY(nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
4038 if (nvpair_type(p2
) == DATA_TYPE_NVLIST
) {
4040 VERIFY(nvpair_value_nvlist(p2
, &attrs
) == 0);
4041 VERIFY(nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
4045 if (nvpair_type(p1
) != nvpair_type(p2
))
4048 if (nvpair_type(p1
) == DATA_TYPE_STRING
) {
4049 char *valstr1
, *valstr2
;
4051 VERIFY(nvpair_value_string(p1
, (char **)&valstr1
) == 0);
4052 VERIFY(nvpair_value_string(p2
, (char **)&valstr2
) == 0);
4053 return (strcmp(valstr1
, valstr2
) == 0);
4055 uint64_t intval1
, intval2
;
4057 VERIFY(nvpair_value_uint64(p1
, &intval1
) == 0);
4058 VERIFY(nvpair_value_uint64(p2
, &intval2
) == 0);
4059 return (intval1
== intval2
);
4064 * Remove properties from props if they are not going to change (as determined
4065 * by comparison with origprops). Remove them from origprops as well, since we
4066 * do not need to clear or restore properties that won't change.
4069 props_reduce(nvlist_t
*props
, nvlist_t
*origprops
)
4071 nvpair_t
*pair
, *next_pair
;
4073 if (origprops
== NULL
)
4074 return; /* all props need to be received */
4076 pair
= nvlist_next_nvpair(props
, NULL
);
4077 while (pair
!= NULL
) {
4078 const char *propname
= nvpair_name(pair
);
4081 next_pair
= nvlist_next_nvpair(props
, pair
);
4083 if ((nvlist_lookup_nvpair(origprops
, propname
,
4084 &match
) != 0) || !propval_equals(pair
, match
))
4085 goto next
; /* need to set received value */
4087 /* don't clear the existing received value */
4088 (void) nvlist_remove_nvpair(origprops
, match
);
4089 /* don't bother receiving the property */
4090 (void) nvlist_remove_nvpair(props
, pair
);
4097 * Extract properties that cannot be set PRIOR to the receipt of a dataset.
4098 * For example, refquota cannot be set until after the receipt of a dataset,
4099 * because in replication streams, an older/earlier snapshot may exceed the
4100 * refquota. We want to receive the older/earlier snapshot, but setting
4101 * refquota pre-receipt will set the dsl's ACTUAL quota, which will prevent
4102 * the older/earlier snapshot from being received (with EDQUOT).
4104 * The ZFS test "zfs_receive_011_pos" demonstrates such a scenario.
4106 * libzfs will need to be judicious handling errors encountered by props
4107 * extracted by this function.
4110 extract_delay_props(nvlist_t
*props
)
4112 nvlist_t
*delayprops
;
4113 nvpair_t
*nvp
, *tmp
;
4114 static const zfs_prop_t delayable
[] = { ZFS_PROP_REFQUOTA
, 0 };
4117 VERIFY(nvlist_alloc(&delayprops
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
4119 for (nvp
= nvlist_next_nvpair(props
, NULL
); nvp
!= NULL
;
4120 nvp
= nvlist_next_nvpair(props
, nvp
)) {
4122 * strcmp() is safe because zfs_prop_to_name() always returns
4125 for (i
= 0; delayable
[i
] != 0; i
++) {
4126 if (strcmp(zfs_prop_to_name(delayable
[i
]),
4127 nvpair_name(nvp
)) == 0) {
4131 if (delayable
[i
] != 0) {
4132 tmp
= nvlist_prev_nvpair(props
, nvp
);
4133 VERIFY(nvlist_add_nvpair(delayprops
, nvp
) == 0);
4134 VERIFY(nvlist_remove_nvpair(props
, nvp
) == 0);
4139 if (nvlist_empty(delayprops
)) {
4140 nvlist_free(delayprops
);
4143 return (delayprops
);
4147 static boolean_t zfs_ioc_recv_inject_err
;
4152 * zc_name name of containing filesystem
4153 * zc_nvlist_src{_size} nvlist of properties to apply
4154 * zc_value name of snapshot to create
4155 * zc_string name of clone origin (if DRR_FLAG_CLONE)
4156 * zc_cookie file descriptor to recv from
4157 * zc_begin_record the BEGIN record of the stream (not byteswapped)
4158 * zc_guid force flag
4159 * zc_cleanup_fd cleanup-on-exit file descriptor
4160 * zc_action_handle handle for this guid/ds mapping (or zero on first call)
4161 * zc_resumable if data is incomplete assume sender will resume
4164 * zc_cookie number of bytes read
4165 * zc_nvlist_dst{_size} error for each unapplied received property
4166 * zc_obj zprop_errflags_t
4167 * zc_action_handle handle for this guid/ds mapping
4170 zfs_ioc_recv(zfs_cmd_t
*zc
)
4173 dmu_recv_cookie_t drc
;
4174 boolean_t force
= (boolean_t
)zc
->zc_guid
;
4177 int props_error
= 0;
4180 nvlist_t
*props
= NULL
; /* sent properties */
4181 nvlist_t
*origprops
= NULL
; /* existing properties */
4182 nvlist_t
*delayprops
= NULL
; /* sent properties applied post-receive */
4183 char *origin
= NULL
;
4185 char tofs
[ZFS_MAX_DATASET_NAME_LEN
];
4186 boolean_t first_recvd_props
= B_FALSE
;
4188 if (dataset_namecheck(zc
->zc_value
, NULL
, NULL
) != 0 ||
4189 strchr(zc
->zc_value
, '@') == NULL
||
4190 strchr(zc
->zc_value
, '%'))
4191 return (SET_ERROR(EINVAL
));
4193 (void) strcpy(tofs
, zc
->zc_value
);
4194 tosnap
= strchr(tofs
, '@');
4197 if (zc
->zc_nvlist_src
!= NULL
&&
4198 (error
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
4199 zc
->zc_iflags
, &props
)) != 0)
4206 return (SET_ERROR(EBADF
));
4209 errors
= fnvlist_alloc();
4211 if (zc
->zc_string
[0])
4212 origin
= zc
->zc_string
;
4214 error
= dmu_recv_begin(tofs
, tosnap
,
4215 &zc
->zc_begin_record
, force
, zc
->zc_resumable
, origin
, &drc
);
4220 * Set properties before we receive the stream so that they are applied
4221 * to the new data. Note that we must call dmu_recv_stream() if
4222 * dmu_recv_begin() succeeds.
4224 if (props
!= NULL
&& !drc
.drc_newfs
) {
4225 if (spa_version(dsl_dataset_get_spa(drc
.drc_ds
)) >=
4226 SPA_VERSION_RECVD_PROPS
&&
4227 !dsl_prop_get_hasrecvd(tofs
))
4228 first_recvd_props
= B_TRUE
;
4231 * If new received properties are supplied, they are to
4232 * completely replace the existing received properties, so stash
4233 * away the existing ones.
4235 if (dsl_prop_get_received(tofs
, &origprops
) == 0) {
4236 nvlist_t
*errlist
= NULL
;
4238 * Don't bother writing a property if its value won't
4239 * change (and avoid the unnecessary security checks).
4241 * The first receive after SPA_VERSION_RECVD_PROPS is a
4242 * special case where we blow away all local properties
4245 if (!first_recvd_props
)
4246 props_reduce(props
, origprops
);
4247 if (zfs_check_clearable(tofs
, origprops
, &errlist
) != 0)
4248 (void) nvlist_merge(errors
, errlist
, 0);
4249 nvlist_free(errlist
);
4251 if (clear_received_props(tofs
, origprops
,
4252 first_recvd_props
? NULL
: props
) != 0)
4253 zc
->zc_obj
|= ZPROP_ERR_NOCLEAR
;
4255 zc
->zc_obj
|= ZPROP_ERR_NOCLEAR
;
4259 if (props
!= NULL
) {
4260 props_error
= dsl_prop_set_hasrecvd(tofs
);
4262 if (props_error
== 0) {
4263 delayprops
= extract_delay_props(props
);
4264 (void) zfs_set_prop_nvlist(tofs
, ZPROP_SRC_RECEIVED
,
4270 error
= dmu_recv_stream(&drc
, fp
->f_vnode
, &off
, zc
->zc_cleanup_fd
,
4271 &zc
->zc_action_handle
);
4274 zfsvfs_t
*zfsvfs
= NULL
;
4276 if (getzfsvfs(tofs
, &zfsvfs
) == 0) {
4280 error
= zfs_suspend_fs(zfsvfs
);
4282 * If the suspend fails, then the recv_end will
4283 * likely also fail, and clean up after itself.
4285 end_err
= dmu_recv_end(&drc
, zfsvfs
);
4287 error
= zfs_resume_fs(zfsvfs
, tofs
);
4288 error
= error
? error
: end_err
;
4289 VFS_RELE(zfsvfs
->z_vfs
);
4291 error
= dmu_recv_end(&drc
, NULL
);
4294 /* Set delayed properties now, after we're done receiving. */
4295 if (delayprops
!= NULL
&& error
== 0) {
4296 (void) zfs_set_prop_nvlist(tofs
, ZPROP_SRC_RECEIVED
,
4297 delayprops
, errors
);
4301 if (delayprops
!= NULL
) {
4303 * Merge delayed props back in with initial props, in case
4304 * we're DEBUG and zfs_ioc_recv_inject_err is set (which means
4305 * we have to make sure clear_received_props() includes
4306 * the delayed properties).
4308 * Since zfs_ioc_recv_inject_err is only in DEBUG kernels,
4309 * using ASSERT() will be just like a VERIFY.
4311 ASSERT(nvlist_merge(props
, delayprops
, 0) == 0);
4312 nvlist_free(delayprops
);
4316 * Now that all props, initial and delayed, are set, report the prop
4317 * errors to the caller.
4319 if (zc
->zc_nvlist_dst_size
!= 0 &&
4320 (nvlist_smush(errors
, zc
->zc_nvlist_dst_size
) != 0 ||
4321 put_nvlist(zc
, errors
) != 0)) {
4323 * Caller made zc->zc_nvlist_dst less than the minimum expected
4324 * size or supplied an invalid address.
4326 props_error
= SET_ERROR(EINVAL
);
4329 zc
->zc_cookie
= off
- fp
->f_offset
;
4330 if (VOP_SEEK(fp
->f_vnode
, fp
->f_offset
, &off
, NULL
) == 0)
4334 if (zfs_ioc_recv_inject_err
) {
4335 zfs_ioc_recv_inject_err
= B_FALSE
;
4340 * On error, restore the original props.
4342 if (error
!= 0 && props
!= NULL
&& !drc
.drc_newfs
) {
4343 if (clear_received_props(tofs
, props
, NULL
) != 0) {
4345 * We failed to clear the received properties.
4346 * Since we may have left a $recvd value on the
4347 * system, we can't clear the $hasrecvd flag.
4349 zc
->zc_obj
|= ZPROP_ERR_NORESTORE
;
4350 } else if (first_recvd_props
) {
4351 dsl_prop_unset_hasrecvd(tofs
);
4354 if (origprops
== NULL
&& !drc
.drc_newfs
) {
4355 /* We failed to stash the original properties. */
4356 zc
->zc_obj
|= ZPROP_ERR_NORESTORE
;
4360 * dsl_props_set() will not convert RECEIVED to LOCAL on or
4361 * after SPA_VERSION_RECVD_PROPS, so we need to specify LOCAL
4362 * explictly if we're restoring local properties cleared in the
4363 * first new-style receive.
4365 if (origprops
!= NULL
&&
4366 zfs_set_prop_nvlist(tofs
, (first_recvd_props
?
4367 ZPROP_SRC_LOCAL
: ZPROP_SRC_RECEIVED
),
4368 origprops
, NULL
) != 0) {
4370 * We stashed the original properties but failed to
4373 zc
->zc_obj
|= ZPROP_ERR_NORESTORE
;
4378 nvlist_free(origprops
);
4379 nvlist_free(errors
);
4383 error
= props_error
;
4390 * zc_name name of snapshot to send
4391 * zc_cookie file descriptor to send stream to
4392 * zc_obj fromorigin flag (mutually exclusive with zc_fromobj)
4393 * zc_sendobj objsetid of snapshot to send
4394 * zc_fromobj objsetid of incremental fromsnap (may be zero)
4395 * zc_guid if set, estimate size of stream only. zc_cookie is ignored.
4396 * output size in zc_objset_type.
4397 * zc_flags lzc_send_flags
4400 * zc_objset_type estimated size, if zc_guid is set
4403 zfs_ioc_send(zfs_cmd_t
*zc
)
4407 boolean_t estimate
= (zc
->zc_guid
!= 0);
4408 boolean_t embedok
= (zc
->zc_flags
& 0x1);
4409 boolean_t large_block_ok
= (zc
->zc_flags
& 0x2);
4411 if (zc
->zc_obj
!= 0) {
4413 dsl_dataset_t
*tosnap
;
4415 error
= dsl_pool_hold(zc
->zc_name
, FTAG
, &dp
);
4419 error
= dsl_dataset_hold_obj(dp
, zc
->zc_sendobj
, FTAG
, &tosnap
);
4421 dsl_pool_rele(dp
, FTAG
);
4425 if (dsl_dir_is_clone(tosnap
->ds_dir
))
4427 dsl_dir_phys(tosnap
->ds_dir
)->dd_origin_obj
;
4428 dsl_dataset_rele(tosnap
, FTAG
);
4429 dsl_pool_rele(dp
, FTAG
);
4434 dsl_dataset_t
*tosnap
;
4435 dsl_dataset_t
*fromsnap
= NULL
;
4437 error
= dsl_pool_hold(zc
->zc_name
, FTAG
, &dp
);
4441 error
= dsl_dataset_hold_obj(dp
, zc
->zc_sendobj
, FTAG
, &tosnap
);
4443 dsl_pool_rele(dp
, FTAG
);
4447 if (zc
->zc_fromobj
!= 0) {
4448 error
= dsl_dataset_hold_obj(dp
, zc
->zc_fromobj
,
4451 dsl_dataset_rele(tosnap
, FTAG
);
4452 dsl_pool_rele(dp
, FTAG
);
4457 error
= dmu_send_estimate(tosnap
, fromsnap
,
4458 &zc
->zc_objset_type
);
4460 if (fromsnap
!= NULL
)
4461 dsl_dataset_rele(fromsnap
, FTAG
);
4462 dsl_dataset_rele(tosnap
, FTAG
);
4463 dsl_pool_rele(dp
, FTAG
);
4465 file_t
*fp
= getf(zc
->zc_cookie
);
4467 return (SET_ERROR(EBADF
));
4470 error
= dmu_send_obj(zc
->zc_name
, zc
->zc_sendobj
,
4471 zc
->zc_fromobj
, embedok
, large_block_ok
,
4472 zc
->zc_cookie
, fp
->f_vnode
, &off
);
4474 if (VOP_SEEK(fp
->f_vnode
, fp
->f_offset
, &off
, NULL
) == 0)
4476 releasef(zc
->zc_cookie
);
4483 * zc_name name of snapshot on which to report progress
4484 * zc_cookie file descriptor of send stream
4487 * zc_cookie number of bytes written in send stream thus far
4490 zfs_ioc_send_progress(zfs_cmd_t
*zc
)
4494 dmu_sendarg_t
*dsp
= NULL
;
4497 error
= dsl_pool_hold(zc
->zc_name
, FTAG
, &dp
);
4501 error
= dsl_dataset_hold(dp
, zc
->zc_name
, FTAG
, &ds
);
4503 dsl_pool_rele(dp
, FTAG
);
4507 mutex_enter(&ds
->ds_sendstream_lock
);
4510 * Iterate over all the send streams currently active on this dataset.
4511 * If there's one which matches the specified file descriptor _and_ the
4512 * stream was started by the current process, return the progress of
4515 for (dsp
= list_head(&ds
->ds_sendstreams
); dsp
!= NULL
;
4516 dsp
= list_next(&ds
->ds_sendstreams
, dsp
)) {
4517 if (dsp
->dsa_outfd
== zc
->zc_cookie
&&
4518 dsp
->dsa_proc
== curproc
)
4523 zc
->zc_cookie
= *(dsp
->dsa_off
);
4525 error
= SET_ERROR(ENOENT
);
4527 mutex_exit(&ds
->ds_sendstream_lock
);
4528 dsl_dataset_rele(ds
, FTAG
);
4529 dsl_pool_rele(dp
, FTAG
);
4534 zfs_ioc_inject_fault(zfs_cmd_t
*zc
)
4538 error
= zio_inject_fault(zc
->zc_name
, (int)zc
->zc_guid
, &id
,
4539 &zc
->zc_inject_record
);
4542 zc
->zc_guid
= (uint64_t)id
;
4548 zfs_ioc_clear_fault(zfs_cmd_t
*zc
)
4550 return (zio_clear_fault((int)zc
->zc_guid
));
4554 zfs_ioc_inject_list_next(zfs_cmd_t
*zc
)
4556 int id
= (int)zc
->zc_guid
;
4559 error
= zio_inject_list_next(&id
, zc
->zc_name
, sizeof (zc
->zc_name
),
4560 &zc
->zc_inject_record
);
4568 zfs_ioc_error_log(zfs_cmd_t
*zc
)
4572 size_t count
= (size_t)zc
->zc_nvlist_dst_size
;
4574 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
4577 error
= spa_get_errlog(spa
, (void *)(uintptr_t)zc
->zc_nvlist_dst
,
4580 zc
->zc_nvlist_dst_size
= count
;
4582 zc
->zc_nvlist_dst_size
= spa_get_errlog_size(spa
);
4584 spa_close(spa
, FTAG
);
4590 zfs_ioc_clear(zfs_cmd_t
*zc
)
4597 * On zpool clear we also fix up missing slogs
4599 mutex_enter(&spa_namespace_lock
);
4600 spa
= spa_lookup(zc
->zc_name
);
4602 mutex_exit(&spa_namespace_lock
);
4603 return (SET_ERROR(EIO
));
4605 if (spa_get_log_state(spa
) == SPA_LOG_MISSING
) {
4606 /* we need to let spa_open/spa_load clear the chains */
4607 spa_set_log_state(spa
, SPA_LOG_CLEAR
);
4609 spa
->spa_last_open_failed
= 0;
4610 mutex_exit(&spa_namespace_lock
);
4612 if (zc
->zc_cookie
& ZPOOL_NO_REWIND
) {
4613 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
4616 nvlist_t
*config
= NULL
;
4618 if (zc
->zc_nvlist_src
== NULL
)
4619 return (SET_ERROR(EINVAL
));
4621 if ((error
= get_nvlist(zc
->zc_nvlist_src
,
4622 zc
->zc_nvlist_src_size
, zc
->zc_iflags
, &policy
)) == 0) {
4623 error
= spa_open_rewind(zc
->zc_name
, &spa
, FTAG
,
4625 if (config
!= NULL
) {
4628 if ((err
= put_nvlist(zc
, config
)) != 0)
4630 nvlist_free(config
);
4632 nvlist_free(policy
);
4639 spa_vdev_state_enter(spa
, SCL_NONE
);
4641 if (zc
->zc_guid
== 0) {
4644 vd
= spa_lookup_by_guid(spa
, zc
->zc_guid
, B_TRUE
);
4646 (void) spa_vdev_state_exit(spa
, NULL
, ENODEV
);
4647 spa_close(spa
, FTAG
);
4648 return (SET_ERROR(ENODEV
));
4652 vdev_clear(spa
, vd
);
4654 (void) spa_vdev_state_exit(spa
, NULL
, 0);
4657 * Resume any suspended I/Os.
4659 if (zio_resume(spa
) != 0)
4660 error
= SET_ERROR(EIO
);
4662 spa_close(spa
, FTAG
);
4668 zfs_ioc_pool_reopen(zfs_cmd_t
*zc
)
4673 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
4677 spa_vdev_state_enter(spa
, SCL_NONE
);
4680 * If a resilver is already in progress then set the
4681 * spa_scrub_reopen flag to B_TRUE so that we don't restart
4682 * the scan as a side effect of the reopen. Otherwise, let
4683 * vdev_open() decided if a resilver is required.
4685 spa
->spa_scrub_reopen
= dsl_scan_resilvering(spa
->spa_dsl_pool
);
4686 vdev_reopen(spa
->spa_root_vdev
);
4687 spa
->spa_scrub_reopen
= B_FALSE
;
4689 (void) spa_vdev_state_exit(spa
, NULL
, 0);
4690 spa_close(spa
, FTAG
);
4695 * zc_name name of filesystem
4696 * zc_value name of origin snapshot
4699 * zc_string name of conflicting snapshot, if there is one
4702 zfs_ioc_promote(zfs_cmd_t
*zc
)
4707 * We don't need to unmount *all* the origin fs's snapshots, but
4710 cp
= strchr(zc
->zc_value
, '@');
4713 (void) dmu_objset_find(zc
->zc_value
,
4714 zfs_unmount_snap_cb
, NULL
, DS_FIND_SNAPSHOTS
);
4715 return (dsl_dataset_promote(zc
->zc_name
, zc
->zc_string
));
4719 * Retrieve a single {user|group}{used|quota}@... property.
4722 * zc_name name of filesystem
4723 * zc_objset_type zfs_userquota_prop_t
4724 * zc_value domain name (eg. "S-1-234-567-89")
4725 * zc_guid RID/UID/GID
4728 * zc_cookie property value
4731 zfs_ioc_userspace_one(zfs_cmd_t
*zc
)
4736 if (zc
->zc_objset_type
>= ZFS_NUM_USERQUOTA_PROPS
)
4737 return (SET_ERROR(EINVAL
));
4739 error
= zfsvfs_hold(zc
->zc_name
, FTAG
, &zfsvfs
, B_FALSE
);
4743 error
= zfs_userspace_one(zfsvfs
,
4744 zc
->zc_objset_type
, zc
->zc_value
, zc
->zc_guid
, &zc
->zc_cookie
);
4745 zfsvfs_rele(zfsvfs
, FTAG
);
4752 * zc_name name of filesystem
4753 * zc_cookie zap cursor
4754 * zc_objset_type zfs_userquota_prop_t
4755 * zc_nvlist_dst[_size] buffer to fill (not really an nvlist)
4758 * zc_nvlist_dst[_size] data buffer (array of zfs_useracct_t)
4759 * zc_cookie zap cursor
4762 zfs_ioc_userspace_many(zfs_cmd_t
*zc
)
4765 int bufsize
= zc
->zc_nvlist_dst_size
;
4768 return (SET_ERROR(ENOMEM
));
4770 int error
= zfsvfs_hold(zc
->zc_name
, FTAG
, &zfsvfs
, B_FALSE
);
4774 void *buf
= kmem_alloc(bufsize
, KM_SLEEP
);
4776 error
= zfs_userspace_many(zfsvfs
, zc
->zc_objset_type
, &zc
->zc_cookie
,
4777 buf
, &zc
->zc_nvlist_dst_size
);
4780 error
= xcopyout(buf
,
4781 (void *)(uintptr_t)zc
->zc_nvlist_dst
,
4782 zc
->zc_nvlist_dst_size
);
4784 kmem_free(buf
, bufsize
);
4785 zfsvfs_rele(zfsvfs
, FTAG
);
4792 * zc_name name of filesystem
4798 zfs_ioc_userspace_upgrade(zfs_cmd_t
*zc
)
4804 if (getzfsvfs(zc
->zc_name
, &zfsvfs
) == 0) {
4805 if (!dmu_objset_userused_enabled(zfsvfs
->z_os
)) {
4807 * If userused is not enabled, it may be because the
4808 * objset needs to be closed & reopened (to grow the
4809 * objset_phys_t). Suspend/resume the fs will do that.
4811 error
= zfs_suspend_fs(zfsvfs
);
4813 dmu_objset_refresh_ownership(zfsvfs
->z_os
,
4815 error
= zfs_resume_fs(zfsvfs
, zc
->zc_name
);
4819 error
= dmu_objset_userspace_upgrade(zfsvfs
->z_os
);
4820 VFS_RELE(zfsvfs
->z_vfs
);
4822 /* XXX kind of reading contents without owning */
4823 error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
);
4827 error
= dmu_objset_userspace_upgrade(os
);
4828 dmu_objset_rele(os
, FTAG
);
4835 * We don't want to have a hard dependency
4836 * against some special symbols in sharefs
4837 * nfs, and smbsrv. Determine them if needed when
4838 * the first file system is shared.
4839 * Neither sharefs, nfs or smbsrv are unloadable modules.
4841 int (*znfsexport_fs
)(void *arg
);
4842 int (*zshare_fs
)(enum sharefs_sys_op
, share_t
*, uint32_t);
4843 int (*zsmbexport_fs
)(void *arg
, boolean_t add_share
);
4845 int zfs_nfsshare_inited
;
4846 int zfs_smbshare_inited
;
4848 ddi_modhandle_t nfs_mod
;
4849 ddi_modhandle_t sharefs_mod
;
4850 ddi_modhandle_t smbsrv_mod
;
4851 kmutex_t zfs_share_lock
;
4858 ASSERT(MUTEX_HELD(&zfs_share_lock
));
4859 /* Both NFS and SMB shares also require sharetab support. */
4860 if (sharefs_mod
== NULL
&& ((sharefs_mod
=
4861 ddi_modopen("fs/sharefs",
4862 KRTLD_MODE_FIRST
, &error
)) == NULL
)) {
4863 return (SET_ERROR(ENOSYS
));
4865 if (zshare_fs
== NULL
&& ((zshare_fs
=
4866 (int (*)(enum sharefs_sys_op
, share_t
*, uint32_t))
4867 ddi_modsym(sharefs_mod
, "sharefs_impl", &error
)) == NULL
)) {
4868 return (SET_ERROR(ENOSYS
));
4874 zfs_ioc_share(zfs_cmd_t
*zc
)
4879 switch (zc
->zc_share
.z_sharetype
) {
4881 case ZFS_UNSHARE_NFS
:
4882 if (zfs_nfsshare_inited
== 0) {
4883 mutex_enter(&zfs_share_lock
);
4884 if (nfs_mod
== NULL
&& ((nfs_mod
= ddi_modopen("fs/nfs",
4885 KRTLD_MODE_FIRST
, &error
)) == NULL
)) {
4886 mutex_exit(&zfs_share_lock
);
4887 return (SET_ERROR(ENOSYS
));
4889 if (znfsexport_fs
== NULL
&&
4890 ((znfsexport_fs
= (int (*)(void *))
4892 "nfs_export", &error
)) == NULL
)) {
4893 mutex_exit(&zfs_share_lock
);
4894 return (SET_ERROR(ENOSYS
));
4896 error
= zfs_init_sharefs();
4898 mutex_exit(&zfs_share_lock
);
4899 return (SET_ERROR(ENOSYS
));
4901 zfs_nfsshare_inited
= 1;
4902 mutex_exit(&zfs_share_lock
);
4906 case ZFS_UNSHARE_SMB
:
4907 if (zfs_smbshare_inited
== 0) {
4908 mutex_enter(&zfs_share_lock
);
4909 if (smbsrv_mod
== NULL
&& ((smbsrv_mod
=
4910 ddi_modopen("drv/smbsrv",
4911 KRTLD_MODE_FIRST
, &error
)) == NULL
)) {
4912 mutex_exit(&zfs_share_lock
);
4913 return (SET_ERROR(ENOSYS
));
4915 if (zsmbexport_fs
== NULL
&& ((zsmbexport_fs
=
4916 (int (*)(void *, boolean_t
))ddi_modsym(smbsrv_mod
,
4917 "smb_server_share", &error
)) == NULL
)) {
4918 mutex_exit(&zfs_share_lock
);
4919 return (SET_ERROR(ENOSYS
));
4921 error
= zfs_init_sharefs();
4923 mutex_exit(&zfs_share_lock
);
4924 return (SET_ERROR(ENOSYS
));
4926 zfs_smbshare_inited
= 1;
4927 mutex_exit(&zfs_share_lock
);
4931 return (SET_ERROR(EINVAL
));
4934 switch (zc
->zc_share
.z_sharetype
) {
4936 case ZFS_UNSHARE_NFS
:
4938 znfsexport_fs((void *)
4939 (uintptr_t)zc
->zc_share
.z_exportdata
))
4943 case ZFS_UNSHARE_SMB
:
4944 if (error
= zsmbexport_fs((void *)
4945 (uintptr_t)zc
->zc_share
.z_exportdata
,
4946 zc
->zc_share
.z_sharetype
== ZFS_SHARE_SMB
?
4953 opcode
= (zc
->zc_share
.z_sharetype
== ZFS_SHARE_NFS
||
4954 zc
->zc_share
.z_sharetype
== ZFS_SHARE_SMB
) ?
4955 SHAREFS_ADD
: SHAREFS_REMOVE
;
4958 * Add or remove share from sharetab
4960 error
= zshare_fs(opcode
,
4961 (void *)(uintptr_t)zc
->zc_share
.z_sharedata
,
4962 zc
->zc_share
.z_sharemax
);
4968 ace_t full_access
[] = {
4969 {(uid_t
)-1, ACE_ALL_PERMS
, ACE_EVERYONE
, 0}
4974 * zc_name name of containing filesystem
4975 * zc_obj object # beyond which we want next in-use object #
4978 * zc_obj next in-use object #
4981 zfs_ioc_next_obj(zfs_cmd_t
*zc
)
4983 objset_t
*os
= NULL
;
4986 error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
);
4990 error
= dmu_object_next(os
, &zc
->zc_obj
, B_FALSE
,
4991 dsl_dataset_phys(os
->os_dsl_dataset
)->ds_prev_snap_txg
);
4993 dmu_objset_rele(os
, FTAG
);
4999 * zc_name name of filesystem
5000 * zc_value prefix name for snapshot
5001 * zc_cleanup_fd cleanup-on-exit file descriptor for calling process
5004 * zc_value short name of new snapshot
5007 zfs_ioc_tmp_snapshot(zfs_cmd_t
*zc
)
5014 error
= zfs_onexit_fd_hold(zc
->zc_cleanup_fd
, &minor
);
5018 snap_name
= kmem_asprintf("%s-%016llx", zc
->zc_value
,
5019 (u_longlong_t
)ddi_get_lbolt64());
5020 hold_name
= kmem_asprintf("%%%s", zc
->zc_value
);
5022 error
= dsl_dataset_snapshot_tmp(zc
->zc_name
, snap_name
, minor
,
5025 (void) strcpy(zc
->zc_value
, snap_name
);
5028 zfs_onexit_fd_rele(zc
->zc_cleanup_fd
);
5034 * zc_name name of "to" snapshot
5035 * zc_value name of "from" snapshot
5036 * zc_cookie file descriptor to write diff data on
5039 * dmu_diff_record_t's to the file descriptor
5042 zfs_ioc_diff(zfs_cmd_t
*zc
)
5048 fp
= getf(zc
->zc_cookie
);
5050 return (SET_ERROR(EBADF
));
5054 error
= dmu_diff(zc
->zc_name
, zc
->zc_value
, fp
->f_vnode
, &off
);
5056 if (VOP_SEEK(fp
->f_vnode
, fp
->f_offset
, &off
, NULL
) == 0)
5058 releasef(zc
->zc_cookie
);
5064 * Remove all ACL files in shares dir
5067 zfs_smb_acl_purge(znode_t
*dzp
)
5070 zap_attribute_t zap
;
5071 zfsvfs_t
*zfsvfs
= dzp
->z_zfsvfs
;
5074 for (zap_cursor_init(&zc
, zfsvfs
->z_os
, dzp
->z_id
);
5075 (error
= zap_cursor_retrieve(&zc
, &zap
)) == 0;
5076 zap_cursor_advance(&zc
)) {
5077 if ((error
= VOP_REMOVE(ZTOV(dzp
), zap
.za_name
, kcred
,
5081 zap_cursor_fini(&zc
);
5086 zfs_ioc_smb_acl(zfs_cmd_t
*zc
)
5090 vnode_t
*resourcevp
= NULL
;
5099 if ((error
= lookupname(zc
->zc_value
, UIO_SYSSPACE
,
5100 NO_FOLLOW
, NULL
, &vp
)) != 0)
5103 /* Now make sure mntpnt and dataset are ZFS */
5105 if (vp
->v_vfsp
->vfs_fstype
!= zfsfstype
||
5106 (strcmp((char *)refstr_value(vp
->v_vfsp
->vfs_resource
),
5107 zc
->zc_name
) != 0)) {
5109 return (SET_ERROR(EINVAL
));
5113 zfsvfs
= dzp
->z_zfsvfs
;
5117 * Create share dir if its missing.
5119 mutex_enter(&zfsvfs
->z_lock
);
5120 if (zfsvfs
->z_shares_dir
== 0) {
5123 tx
= dmu_tx_create(zfsvfs
->z_os
);
5124 dmu_tx_hold_zap(tx
, MASTER_NODE_OBJ
, TRUE
,
5126 dmu_tx_hold_zap(tx
, DMU_NEW_OBJECT
, FALSE
, NULL
);
5127 error
= dmu_tx_assign(tx
, TXG_WAIT
);
5131 error
= zfs_create_share_dir(zfsvfs
, tx
);
5135 mutex_exit(&zfsvfs
->z_lock
);
5141 mutex_exit(&zfsvfs
->z_lock
);
5143 ASSERT(zfsvfs
->z_shares_dir
);
5144 if ((error
= zfs_zget(zfsvfs
, zfsvfs
->z_shares_dir
, &sharedir
)) != 0) {
5150 switch (zc
->zc_cookie
) {
5151 case ZFS_SMB_ACL_ADD
:
5152 vattr
.va_mask
= AT_MODE
|AT_UID
|AT_GID
|AT_TYPE
;
5153 vattr
.va_type
= VREG
;
5154 vattr
.va_mode
= S_IFREG
|0777;
5158 vsec
.vsa_mask
= VSA_ACE
;
5159 vsec
.vsa_aclentp
= &full_access
;
5160 vsec
.vsa_aclentsz
= sizeof (full_access
);
5161 vsec
.vsa_aclcnt
= 1;
5163 error
= VOP_CREATE(ZTOV(sharedir
), zc
->zc_string
,
5164 &vattr
, EXCL
, 0, &resourcevp
, kcred
, 0, NULL
, &vsec
);
5166 VN_RELE(resourcevp
);
5169 case ZFS_SMB_ACL_REMOVE
:
5170 error
= VOP_REMOVE(ZTOV(sharedir
), zc
->zc_string
, kcred
,
5174 case ZFS_SMB_ACL_RENAME
:
5175 if ((error
= get_nvlist(zc
->zc_nvlist_src
,
5176 zc
->zc_nvlist_src_size
, zc
->zc_iflags
, &nvlist
)) != 0) {
5178 VN_RELE(ZTOV(sharedir
));
5182 if (nvlist_lookup_string(nvlist
, ZFS_SMB_ACL_SRC
, &src
) ||
5183 nvlist_lookup_string(nvlist
, ZFS_SMB_ACL_TARGET
,
5186 VN_RELE(ZTOV(sharedir
));
5188 nvlist_free(nvlist
);
5191 error
= VOP_RENAME(ZTOV(sharedir
), src
, ZTOV(sharedir
), target
,
5193 nvlist_free(nvlist
);
5196 case ZFS_SMB_ACL_PURGE
:
5197 error
= zfs_smb_acl_purge(sharedir
);
5201 error
= SET_ERROR(EINVAL
);
5206 VN_RELE(ZTOV(sharedir
));
5215 * "holds" -> { snapname -> holdname (string), ... }
5216 * (optional) "cleanup_fd" -> fd (int32)
5220 * snapname -> error value (int32)
5226 zfs_ioc_hold(const char *pool
, nvlist_t
*args
, nvlist_t
*errlist
)
5230 int cleanup_fd
= -1;
5234 error
= nvlist_lookup_nvlist(args
, "holds", &holds
);
5236 return (SET_ERROR(EINVAL
));
5238 /* make sure the user didn't pass us any invalid (empty) tags */
5239 for (pair
= nvlist_next_nvpair(holds
, NULL
); pair
!= NULL
;
5240 pair
= nvlist_next_nvpair(holds
, pair
)) {
5243 error
= nvpair_value_string(pair
, &htag
);
5245 return (SET_ERROR(error
));
5247 if (strlen(htag
) == 0)
5248 return (SET_ERROR(EINVAL
));
5251 if (nvlist_lookup_int32(args
, "cleanup_fd", &cleanup_fd
) == 0) {
5252 error
= zfs_onexit_fd_hold(cleanup_fd
, &minor
);
5257 error
= dsl_dataset_user_hold(holds
, minor
, errlist
);
5259 zfs_onexit_fd_rele(cleanup_fd
);
5264 * innvl is not used.
5267 * holdname -> time added (uint64 seconds since epoch)
5273 zfs_ioc_get_holds(const char *snapname
, nvlist_t
*args
, nvlist_t
*outnvl
)
5275 return (dsl_dataset_get_holds(snapname
, outnvl
));
5280 * snapname -> { holdname, ... }
5285 * snapname -> error value (int32)
5291 zfs_ioc_release(const char *pool
, nvlist_t
*holds
, nvlist_t
*errlist
)
5293 return (dsl_dataset_user_release(holds
, errlist
));
5298 * zc_name name of new filesystem or snapshot
5299 * zc_value full name of old snapshot
5302 * zc_cookie space in bytes
5303 * zc_objset_type compressed space in bytes
5304 * zc_perm_action uncompressed space in bytes
5307 zfs_ioc_space_written(zfs_cmd_t
*zc
)
5311 dsl_dataset_t
*new, *old
;
5313 error
= dsl_pool_hold(zc
->zc_name
, FTAG
, &dp
);
5316 error
= dsl_dataset_hold(dp
, zc
->zc_name
, FTAG
, &new);
5318 dsl_pool_rele(dp
, FTAG
);
5321 error
= dsl_dataset_hold(dp
, zc
->zc_value
, FTAG
, &old
);
5323 dsl_dataset_rele(new, FTAG
);
5324 dsl_pool_rele(dp
, FTAG
);
5328 error
= dsl_dataset_space_written(old
, new, &zc
->zc_cookie
,
5329 &zc
->zc_objset_type
, &zc
->zc_perm_action
);
5330 dsl_dataset_rele(old
, FTAG
);
5331 dsl_dataset_rele(new, FTAG
);
5332 dsl_pool_rele(dp
, FTAG
);
5338 * "firstsnap" -> snapshot name
5342 * "used" -> space in bytes
5343 * "compressed" -> compressed space in bytes
5344 * "uncompressed" -> uncompressed space in bytes
5348 zfs_ioc_space_snaps(const char *lastsnap
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
5352 dsl_dataset_t
*new, *old
;
5354 uint64_t used
, comp
, uncomp
;
5356 if (nvlist_lookup_string(innvl
, "firstsnap", &firstsnap
) != 0)
5357 return (SET_ERROR(EINVAL
));
5359 error
= dsl_pool_hold(lastsnap
, FTAG
, &dp
);
5363 error
= dsl_dataset_hold(dp
, lastsnap
, FTAG
, &new);
5364 if (error
== 0 && !new->ds_is_snapshot
) {
5365 dsl_dataset_rele(new, FTAG
);
5366 error
= SET_ERROR(EINVAL
);
5369 dsl_pool_rele(dp
, FTAG
);
5372 error
= dsl_dataset_hold(dp
, firstsnap
, FTAG
, &old
);
5373 if (error
== 0 && !old
->ds_is_snapshot
) {
5374 dsl_dataset_rele(old
, FTAG
);
5375 error
= SET_ERROR(EINVAL
);
5378 dsl_dataset_rele(new, FTAG
);
5379 dsl_pool_rele(dp
, FTAG
);
5383 error
= dsl_dataset_space_wouldfree(old
, new, &used
, &comp
, &uncomp
);
5384 dsl_dataset_rele(old
, FTAG
);
5385 dsl_dataset_rele(new, FTAG
);
5386 dsl_pool_rele(dp
, FTAG
);
5387 fnvlist_add_uint64(outnvl
, "used", used
);
5388 fnvlist_add_uint64(outnvl
, "compressed", comp
);
5389 fnvlist_add_uint64(outnvl
, "uncompressed", uncomp
);
5395 * "fd" -> file descriptor to write stream to (int32)
5396 * (optional) "fromsnap" -> full snap name to send an incremental from
5397 * (optional) "largeblockok" -> (value ignored)
5398 * indicates that blocks > 128KB are permitted
5399 * (optional) "embedok" -> (value ignored)
5400 * presence indicates DRR_WRITE_EMBEDDED records are permitted
5401 * (optional) "resume_object" and "resume_offset" -> (uint64)
5402 * if present, resume send stream from specified object and offset.
5409 zfs_ioc_send_new(const char *snapname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
5413 char *fromname
= NULL
;
5415 boolean_t largeblockok
;
5417 uint64_t resumeobj
= 0;
5418 uint64_t resumeoff
= 0;
5420 error
= nvlist_lookup_int32(innvl
, "fd", &fd
);
5422 return (SET_ERROR(EINVAL
));
5424 (void) nvlist_lookup_string(innvl
, "fromsnap", &fromname
);
5426 largeblockok
= nvlist_exists(innvl
, "largeblockok");
5427 embedok
= nvlist_exists(innvl
, "embedok");
5429 (void) nvlist_lookup_uint64(innvl
, "resume_object", &resumeobj
);
5430 (void) nvlist_lookup_uint64(innvl
, "resume_offset", &resumeoff
);
5432 file_t
*fp
= getf(fd
);
5434 return (SET_ERROR(EBADF
));
5437 error
= dmu_send(snapname
, fromname
, embedok
, largeblockok
, fd
,
5438 resumeobj
, resumeoff
, fp
->f_vnode
, &off
);
5440 if (VOP_SEEK(fp
->f_vnode
, fp
->f_offset
, &off
, NULL
) == 0)
5447 * Determine approximately how large a zfs send stream will be -- the number
5448 * of bytes that will be written to the fd supplied to zfs_ioc_send_new().
5451 * (optional) "from" -> full snap or bookmark name to send an incremental
5456 * "space" -> bytes of space (uint64)
5460 zfs_ioc_send_space(const char *snapname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
5463 dsl_dataset_t
*tosnap
;
5468 error
= dsl_pool_hold(snapname
, FTAG
, &dp
);
5472 error
= dsl_dataset_hold(dp
, snapname
, FTAG
, &tosnap
);
5474 dsl_pool_rele(dp
, FTAG
);
5478 error
= nvlist_lookup_string(innvl
, "from", &fromname
);
5480 if (strchr(fromname
, '@') != NULL
) {
5482 * If from is a snapshot, hold it and use the more
5483 * efficient dmu_send_estimate to estimate send space
5484 * size using deadlists.
5486 dsl_dataset_t
*fromsnap
;
5487 error
= dsl_dataset_hold(dp
, fromname
, FTAG
, &fromsnap
);
5490 error
= dmu_send_estimate(tosnap
, fromsnap
, &space
);
5491 dsl_dataset_rele(fromsnap
, FTAG
);
5492 } else if (strchr(fromname
, '#') != NULL
) {
5494 * If from is a bookmark, fetch the creation TXG of the
5495 * snapshot it was created from and use that to find
5496 * blocks that were born after it.
5498 zfs_bookmark_phys_t frombm
;
5500 error
= dsl_bookmark_lookup(dp
, fromname
, tosnap
,
5504 error
= dmu_send_estimate_from_txg(tosnap
,
5505 frombm
.zbm_creation_txg
, &space
);
5508 * from is not properly formatted as a snapshot or
5511 error
= SET_ERROR(EINVAL
);
5515 // If estimating the size of a full send, use dmu_send_estimate
5516 error
= dmu_send_estimate(tosnap
, NULL
, &space
);
5519 fnvlist_add_uint64(outnvl
, "space", space
);
5522 dsl_dataset_rele(tosnap
, FTAG
);
5523 dsl_pool_rele(dp
, FTAG
);
5527 static zfs_ioc_vec_t zfs_ioc_vec
[ZFS_IOC_LAST
- ZFS_IOC_FIRST
];
5530 zfs_ioctl_register_legacy(zfs_ioc_t ioc
, zfs_ioc_legacy_func_t
*func
,
5531 zfs_secpolicy_func_t
*secpolicy
, zfs_ioc_namecheck_t namecheck
,
5532 boolean_t log_history
, zfs_ioc_poolcheck_t pool_check
)
5534 zfs_ioc_vec_t
*vec
= &zfs_ioc_vec
[ioc
- ZFS_IOC_FIRST
];
5536 ASSERT3U(ioc
, >=, ZFS_IOC_FIRST
);
5537 ASSERT3U(ioc
, <, ZFS_IOC_LAST
);
5538 ASSERT3P(vec
->zvec_legacy_func
, ==, NULL
);
5539 ASSERT3P(vec
->zvec_func
, ==, NULL
);
5541 vec
->zvec_legacy_func
= func
;
5542 vec
->zvec_secpolicy
= secpolicy
;
5543 vec
->zvec_namecheck
= namecheck
;
5544 vec
->zvec_allow_log
= log_history
;
5545 vec
->zvec_pool_check
= pool_check
;
5549 * See the block comment at the beginning of this file for details on
5550 * each argument to this function.
5553 zfs_ioctl_register(const char *name
, zfs_ioc_t ioc
, zfs_ioc_func_t
*func
,
5554 zfs_secpolicy_func_t
*secpolicy
, zfs_ioc_namecheck_t namecheck
,
5555 zfs_ioc_poolcheck_t pool_check
, boolean_t smush_outnvlist
,
5556 boolean_t allow_log
)
5558 zfs_ioc_vec_t
*vec
= &zfs_ioc_vec
[ioc
- ZFS_IOC_FIRST
];
5560 ASSERT3U(ioc
, >=, ZFS_IOC_FIRST
);
5561 ASSERT3U(ioc
, <, ZFS_IOC_LAST
);
5562 ASSERT3P(vec
->zvec_legacy_func
, ==, NULL
);
5563 ASSERT3P(vec
->zvec_func
, ==, NULL
);
5565 /* if we are logging, the name must be valid */
5566 ASSERT(!allow_log
|| namecheck
!= NO_NAME
);
5568 vec
->zvec_name
= name
;
5569 vec
->zvec_func
= func
;
5570 vec
->zvec_secpolicy
= secpolicy
;
5571 vec
->zvec_namecheck
= namecheck
;
5572 vec
->zvec_pool_check
= pool_check
;
5573 vec
->zvec_smush_outnvlist
= smush_outnvlist
;
5574 vec
->zvec_allow_log
= allow_log
;
5578 zfs_ioctl_register_pool(zfs_ioc_t ioc
, zfs_ioc_legacy_func_t
*func
,
5579 zfs_secpolicy_func_t
*secpolicy
, boolean_t log_history
,
5580 zfs_ioc_poolcheck_t pool_check
)
5582 zfs_ioctl_register_legacy(ioc
, func
, secpolicy
,
5583 POOL_NAME
, log_history
, pool_check
);
5587 zfs_ioctl_register_dataset_nolog(zfs_ioc_t ioc
, zfs_ioc_legacy_func_t
*func
,
5588 zfs_secpolicy_func_t
*secpolicy
, zfs_ioc_poolcheck_t pool_check
)
5590 zfs_ioctl_register_legacy(ioc
, func
, secpolicy
,
5591 DATASET_NAME
, B_FALSE
, pool_check
);
5595 zfs_ioctl_register_pool_modify(zfs_ioc_t ioc
, zfs_ioc_legacy_func_t
*func
)
5597 zfs_ioctl_register_legacy(ioc
, func
, zfs_secpolicy_config
,
5598 POOL_NAME
, B_TRUE
, POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
);
5602 zfs_ioctl_register_pool_meta(zfs_ioc_t ioc
, zfs_ioc_legacy_func_t
*func
,
5603 zfs_secpolicy_func_t
*secpolicy
)
5605 zfs_ioctl_register_legacy(ioc
, func
, secpolicy
,
5606 NO_NAME
, B_FALSE
, POOL_CHECK_NONE
);
5610 zfs_ioctl_register_dataset_read_secpolicy(zfs_ioc_t ioc
,
5611 zfs_ioc_legacy_func_t
*func
, zfs_secpolicy_func_t
*secpolicy
)
5613 zfs_ioctl_register_legacy(ioc
, func
, secpolicy
,
5614 DATASET_NAME
, B_FALSE
, POOL_CHECK_SUSPENDED
);
5618 zfs_ioctl_register_dataset_read(zfs_ioc_t ioc
, zfs_ioc_legacy_func_t
*func
)
5620 zfs_ioctl_register_dataset_read_secpolicy(ioc
, func
,
5621 zfs_secpolicy_read
);
5625 zfs_ioctl_register_dataset_modify(zfs_ioc_t ioc
, zfs_ioc_legacy_func_t
*func
,
5626 zfs_secpolicy_func_t
*secpolicy
)
5628 zfs_ioctl_register_legacy(ioc
, func
, secpolicy
,
5629 DATASET_NAME
, B_TRUE
, POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
);
5633 zfs_ioctl_init(void)
5635 zfs_ioctl_register("snapshot", ZFS_IOC_SNAPSHOT
,
5636 zfs_ioc_snapshot
, zfs_secpolicy_snapshot
, POOL_NAME
,
5637 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5639 zfs_ioctl_register("log_history", ZFS_IOC_LOG_HISTORY
,
5640 zfs_ioc_log_history
, zfs_secpolicy_log_history
, NO_NAME
,
5641 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_FALSE
, B_FALSE
);
5643 zfs_ioctl_register("space_snaps", ZFS_IOC_SPACE_SNAPS
,
5644 zfs_ioc_space_snaps
, zfs_secpolicy_read
, DATASET_NAME
,
5645 POOL_CHECK_SUSPENDED
, B_FALSE
, B_FALSE
);
5647 zfs_ioctl_register("send", ZFS_IOC_SEND_NEW
,
5648 zfs_ioc_send_new
, zfs_secpolicy_send_new
, DATASET_NAME
,
5649 POOL_CHECK_SUSPENDED
, B_FALSE
, B_FALSE
);
5651 zfs_ioctl_register("send_space", ZFS_IOC_SEND_SPACE
,
5652 zfs_ioc_send_space
, zfs_secpolicy_read
, DATASET_NAME
,
5653 POOL_CHECK_SUSPENDED
, B_FALSE
, B_FALSE
);
5655 zfs_ioctl_register("create", ZFS_IOC_CREATE
,
5656 zfs_ioc_create
, zfs_secpolicy_create_clone
, DATASET_NAME
,
5657 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5659 zfs_ioctl_register("clone", ZFS_IOC_CLONE
,
5660 zfs_ioc_clone
, zfs_secpolicy_create_clone
, DATASET_NAME
,
5661 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5663 zfs_ioctl_register("destroy_snaps", ZFS_IOC_DESTROY_SNAPS
,
5664 zfs_ioc_destroy_snaps
, zfs_secpolicy_destroy_snaps
, POOL_NAME
,
5665 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5667 zfs_ioctl_register("hold", ZFS_IOC_HOLD
,
5668 zfs_ioc_hold
, zfs_secpolicy_hold
, POOL_NAME
,
5669 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5670 zfs_ioctl_register("release", ZFS_IOC_RELEASE
,
5671 zfs_ioc_release
, zfs_secpolicy_release
, POOL_NAME
,
5672 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5674 zfs_ioctl_register("get_holds", ZFS_IOC_GET_HOLDS
,
5675 zfs_ioc_get_holds
, zfs_secpolicy_read
, DATASET_NAME
,
5676 POOL_CHECK_SUSPENDED
, B_FALSE
, B_FALSE
);
5678 zfs_ioctl_register("rollback", ZFS_IOC_ROLLBACK
,
5679 zfs_ioc_rollback
, zfs_secpolicy_rollback
, DATASET_NAME
,
5680 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_FALSE
, B_TRUE
);
5682 zfs_ioctl_register("bookmark", ZFS_IOC_BOOKMARK
,
5683 zfs_ioc_bookmark
, zfs_secpolicy_bookmark
, POOL_NAME
,
5684 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5686 zfs_ioctl_register("get_bookmarks", ZFS_IOC_GET_BOOKMARKS
,
5687 zfs_ioc_get_bookmarks
, zfs_secpolicy_read
, DATASET_NAME
,
5688 POOL_CHECK_SUSPENDED
, B_FALSE
, B_FALSE
);
5690 zfs_ioctl_register("destroy_bookmarks", ZFS_IOC_DESTROY_BOOKMARKS
,
5691 zfs_ioc_destroy_bookmarks
, zfs_secpolicy_destroy_bookmarks
,
5693 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5695 /* IOCTLS that use the legacy function signature */
5697 zfs_ioctl_register_legacy(ZFS_IOC_POOL_FREEZE
, zfs_ioc_pool_freeze
,
5698 zfs_secpolicy_config
, NO_NAME
, B_FALSE
, POOL_CHECK_READONLY
);
5700 zfs_ioctl_register_pool(ZFS_IOC_POOL_CREATE
, zfs_ioc_pool_create
,
5701 zfs_secpolicy_config
, B_TRUE
, POOL_CHECK_NONE
);
5702 zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_SCAN
,
5704 zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_UPGRADE
,
5705 zfs_ioc_pool_upgrade
);
5706 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_ADD
,
5708 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_REMOVE
,
5709 zfs_ioc_vdev_remove
);
5710 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SET_STATE
,
5711 zfs_ioc_vdev_set_state
);
5712 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_ATTACH
,
5713 zfs_ioc_vdev_attach
);
5714 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_DETACH
,
5715 zfs_ioc_vdev_detach
);
5716 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SETPATH
,
5717 zfs_ioc_vdev_setpath
);
5718 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SETFRU
,
5719 zfs_ioc_vdev_setfru
);
5720 zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_SET_PROPS
,
5721 zfs_ioc_pool_set_props
);
5722 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SPLIT
,
5723 zfs_ioc_vdev_split
);
5724 zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_REGUID
,
5725 zfs_ioc_pool_reguid
);
5727 zfs_ioctl_register_pool_meta(ZFS_IOC_POOL_CONFIGS
,
5728 zfs_ioc_pool_configs
, zfs_secpolicy_none
);
5729 zfs_ioctl_register_pool_meta(ZFS_IOC_POOL_TRYIMPORT
,
5730 zfs_ioc_pool_tryimport
, zfs_secpolicy_config
);
5731 zfs_ioctl_register_pool_meta(ZFS_IOC_INJECT_FAULT
,
5732 zfs_ioc_inject_fault
, zfs_secpolicy_inject
);
5733 zfs_ioctl_register_pool_meta(ZFS_IOC_CLEAR_FAULT
,
5734 zfs_ioc_clear_fault
, zfs_secpolicy_inject
);
5735 zfs_ioctl_register_pool_meta(ZFS_IOC_INJECT_LIST_NEXT
,
5736 zfs_ioc_inject_list_next
, zfs_secpolicy_inject
);
5739 * pool destroy, and export don't log the history as part of
5740 * zfsdev_ioctl, but rather zfs_ioc_pool_export
5741 * does the logging of those commands.
5743 zfs_ioctl_register_pool(ZFS_IOC_POOL_DESTROY
, zfs_ioc_pool_destroy
,
5744 zfs_secpolicy_config
, B_FALSE
, POOL_CHECK_NONE
);
5745 zfs_ioctl_register_pool(ZFS_IOC_POOL_EXPORT
, zfs_ioc_pool_export
,
5746 zfs_secpolicy_config
, B_FALSE
, POOL_CHECK_NONE
);
5748 zfs_ioctl_register_pool(ZFS_IOC_POOL_STATS
, zfs_ioc_pool_stats
,
5749 zfs_secpolicy_read
, B_FALSE
, POOL_CHECK_NONE
);
5750 zfs_ioctl_register_pool(ZFS_IOC_POOL_GET_PROPS
, zfs_ioc_pool_get_props
,
5751 zfs_secpolicy_read
, B_FALSE
, POOL_CHECK_NONE
);
5753 zfs_ioctl_register_pool(ZFS_IOC_ERROR_LOG
, zfs_ioc_error_log
,
5754 zfs_secpolicy_inject
, B_FALSE
, POOL_CHECK_SUSPENDED
);
5755 zfs_ioctl_register_pool(ZFS_IOC_DSOBJ_TO_DSNAME
,
5756 zfs_ioc_dsobj_to_dsname
,
5757 zfs_secpolicy_diff
, B_FALSE
, POOL_CHECK_SUSPENDED
);
5758 zfs_ioctl_register_pool(ZFS_IOC_POOL_GET_HISTORY
,
5759 zfs_ioc_pool_get_history
,
5760 zfs_secpolicy_config
, B_FALSE
, POOL_CHECK_SUSPENDED
);
5762 zfs_ioctl_register_pool(ZFS_IOC_POOL_IMPORT
, zfs_ioc_pool_import
,
5763 zfs_secpolicy_config
, B_TRUE
, POOL_CHECK_NONE
);
5765 zfs_ioctl_register_pool(ZFS_IOC_CLEAR
, zfs_ioc_clear
,
5766 zfs_secpolicy_config
, B_TRUE
, POOL_CHECK_NONE
);
5767 zfs_ioctl_register_pool(ZFS_IOC_POOL_REOPEN
, zfs_ioc_pool_reopen
,
5768 zfs_secpolicy_config
, B_TRUE
, POOL_CHECK_SUSPENDED
);
5770 zfs_ioctl_register_dataset_read(ZFS_IOC_SPACE_WRITTEN
,
5771 zfs_ioc_space_written
);
5772 zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_RECVD_PROPS
,
5773 zfs_ioc_objset_recvd_props
);
5774 zfs_ioctl_register_dataset_read(ZFS_IOC_NEXT_OBJ
,
5776 zfs_ioctl_register_dataset_read(ZFS_IOC_GET_FSACL
,
5778 zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_STATS
,
5779 zfs_ioc_objset_stats
);
5780 zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_ZPLPROPS
,
5781 zfs_ioc_objset_zplprops
);
5782 zfs_ioctl_register_dataset_read(ZFS_IOC_DATASET_LIST_NEXT
,
5783 zfs_ioc_dataset_list_next
);
5784 zfs_ioctl_register_dataset_read(ZFS_IOC_SNAPSHOT_LIST_NEXT
,
5785 zfs_ioc_snapshot_list_next
);
5786 zfs_ioctl_register_dataset_read(ZFS_IOC_SEND_PROGRESS
,
5787 zfs_ioc_send_progress
);
5789 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_DIFF
,
5790 zfs_ioc_diff
, zfs_secpolicy_diff
);
5791 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_OBJ_TO_STATS
,
5792 zfs_ioc_obj_to_stats
, zfs_secpolicy_diff
);
5793 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_OBJ_TO_PATH
,
5794 zfs_ioc_obj_to_path
, zfs_secpolicy_diff
);
5795 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_USERSPACE_ONE
,
5796 zfs_ioc_userspace_one
, zfs_secpolicy_userspace_one
);
5797 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_USERSPACE_MANY
,
5798 zfs_ioc_userspace_many
, zfs_secpolicy_userspace_many
);
5799 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_SEND
,
5800 zfs_ioc_send
, zfs_secpolicy_send
);
5802 zfs_ioctl_register_dataset_modify(ZFS_IOC_SET_PROP
, zfs_ioc_set_prop
,
5803 zfs_secpolicy_none
);
5804 zfs_ioctl_register_dataset_modify(ZFS_IOC_DESTROY
, zfs_ioc_destroy
,
5805 zfs_secpolicy_destroy
);
5806 zfs_ioctl_register_dataset_modify(ZFS_IOC_RENAME
, zfs_ioc_rename
,
5807 zfs_secpolicy_rename
);
5808 zfs_ioctl_register_dataset_modify(ZFS_IOC_RECV
, zfs_ioc_recv
,
5809 zfs_secpolicy_recv
);
5810 zfs_ioctl_register_dataset_modify(ZFS_IOC_PROMOTE
, zfs_ioc_promote
,
5811 zfs_secpolicy_promote
);
5812 zfs_ioctl_register_dataset_modify(ZFS_IOC_INHERIT_PROP
,
5813 zfs_ioc_inherit_prop
, zfs_secpolicy_inherit_prop
);
5814 zfs_ioctl_register_dataset_modify(ZFS_IOC_SET_FSACL
, zfs_ioc_set_fsacl
,
5815 zfs_secpolicy_set_fsacl
);
5817 zfs_ioctl_register_dataset_nolog(ZFS_IOC_SHARE
, zfs_ioc_share
,
5818 zfs_secpolicy_share
, POOL_CHECK_NONE
);
5819 zfs_ioctl_register_dataset_nolog(ZFS_IOC_SMB_ACL
, zfs_ioc_smb_acl
,
5820 zfs_secpolicy_smb_acl
, POOL_CHECK_NONE
);
5821 zfs_ioctl_register_dataset_nolog(ZFS_IOC_USERSPACE_UPGRADE
,
5822 zfs_ioc_userspace_upgrade
, zfs_secpolicy_userspace_upgrade
,
5823 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
);
5824 zfs_ioctl_register_dataset_nolog(ZFS_IOC_TMP_SNAPSHOT
,
5825 zfs_ioc_tmp_snapshot
, zfs_secpolicy_tmp_snapshot
,
5826 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
);
5830 pool_status_check(const char *name
, zfs_ioc_namecheck_t type
,
5831 zfs_ioc_poolcheck_t check
)
5836 ASSERT(type
== POOL_NAME
|| type
== DATASET_NAME
);
5838 if (check
& POOL_CHECK_NONE
)
5841 error
= spa_open(name
, &spa
, FTAG
);
5843 if ((check
& POOL_CHECK_SUSPENDED
) && spa_suspended(spa
))
5844 error
= SET_ERROR(EAGAIN
);
5845 else if ((check
& POOL_CHECK_READONLY
) && !spa_writeable(spa
))
5846 error
= SET_ERROR(EROFS
);
5847 spa_close(spa
, FTAG
);
5853 * Find a free minor number.
5856 zfsdev_minor_alloc(void)
5858 static minor_t last_minor
;
5861 ASSERT(MUTEX_HELD(&zfsdev_state_lock
));
5863 for (m
= last_minor
+ 1; m
!= last_minor
; m
++) {
5864 if (m
> ZFSDEV_MAX_MINOR
)
5866 if (ddi_get_soft_state(zfsdev_state
, m
) == NULL
) {
5876 zfs_ctldev_init(dev_t
*devp
)
5879 zfs_soft_state_t
*zs
;
5881 ASSERT(MUTEX_HELD(&zfsdev_state_lock
));
5882 ASSERT(getminor(*devp
) == 0);
5884 minor
= zfsdev_minor_alloc();
5886 return (SET_ERROR(ENXIO
));
5888 if (ddi_soft_state_zalloc(zfsdev_state
, minor
) != DDI_SUCCESS
)
5889 return (SET_ERROR(EAGAIN
));
5891 *devp
= makedevice(getemajor(*devp
), minor
);
5893 zs
= ddi_get_soft_state(zfsdev_state
, minor
);
5894 zs
->zss_type
= ZSST_CTLDEV
;
5895 zfs_onexit_init((zfs_onexit_t
**)&zs
->zss_data
);
5901 zfs_ctldev_destroy(zfs_onexit_t
*zo
, minor_t minor
)
5903 ASSERT(MUTEX_HELD(&zfsdev_state_lock
));
5905 zfs_onexit_destroy(zo
);
5906 ddi_soft_state_free(zfsdev_state
, minor
);
5910 zfsdev_get_soft_state(minor_t minor
, enum zfs_soft_state_type which
)
5912 zfs_soft_state_t
*zp
;
5914 zp
= ddi_get_soft_state(zfsdev_state
, minor
);
5915 if (zp
== NULL
|| zp
->zss_type
!= which
)
5918 return (zp
->zss_data
);
5922 zfsdev_open(dev_t
*devp
, int flag
, int otyp
, cred_t
*cr
)
5926 if (getminor(*devp
) != 0)
5927 return (zvol_open(devp
, flag
, otyp
, cr
));
5929 /* This is the control device. Allocate a new minor if requested. */
5931 mutex_enter(&zfsdev_state_lock
);
5932 error
= zfs_ctldev_init(devp
);
5933 mutex_exit(&zfsdev_state_lock
);
5940 zfsdev_close(dev_t dev
, int flag
, int otyp
, cred_t
*cr
)
5943 minor_t minor
= getminor(dev
);
5948 mutex_enter(&zfsdev_state_lock
);
5949 zo
= zfsdev_get_soft_state(minor
, ZSST_CTLDEV
);
5951 mutex_exit(&zfsdev_state_lock
);
5952 return (zvol_close(dev
, flag
, otyp
, cr
));
5954 zfs_ctldev_destroy(zo
, minor
);
5955 mutex_exit(&zfsdev_state_lock
);
5961 zfsdev_ioctl(dev_t dev
, int cmd
, intptr_t arg
, int flag
, cred_t
*cr
, int *rvalp
)
5966 minor_t minor
= getminor(dev
);
5967 const zfs_ioc_vec_t
*vec
;
5968 char *saved_poolname
= NULL
;
5969 nvlist_t
*innvl
= NULL
;
5972 zfsdev_get_soft_state(minor
, ZSST_CTLDEV
) == NULL
)
5973 return (zvol_ioctl(dev
, cmd
, arg
, flag
, cr
, rvalp
));
5975 vecnum
= cmd
- ZFS_IOC_FIRST
;
5976 ASSERT3U(getmajor(dev
), ==, ddi_driver_major(zfs_dip
));
5978 if (vecnum
>= sizeof (zfs_ioc_vec
) / sizeof (zfs_ioc_vec
[0]))
5979 return (SET_ERROR(EINVAL
));
5980 vec
= &zfs_ioc_vec
[vecnum
];
5982 zc
= kmem_zalloc(sizeof (zfs_cmd_t
), KM_SLEEP
);
5984 error
= ddi_copyin((void *)arg
, zc
, sizeof (zfs_cmd_t
), flag
);
5986 error
= SET_ERROR(EFAULT
);
5990 zc
->zc_iflags
= flag
& FKIOCTL
;
5991 if (zc
->zc_nvlist_src_size
!= 0) {
5992 error
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
5993 zc
->zc_iflags
, &innvl
);
5999 * Ensure that all pool/dataset names are valid before we pass down to
6002 zc
->zc_name
[sizeof (zc
->zc_name
) - 1] = '\0';
6003 switch (vec
->zvec_namecheck
) {
6005 if (pool_namecheck(zc
->zc_name
, NULL
, NULL
) != 0)
6006 error
= SET_ERROR(EINVAL
);
6008 error
= pool_status_check(zc
->zc_name
,
6009 vec
->zvec_namecheck
, vec
->zvec_pool_check
);
6013 if (dataset_namecheck(zc
->zc_name
, NULL
, NULL
) != 0)
6014 error
= SET_ERROR(EINVAL
);
6016 error
= pool_status_check(zc
->zc_name
,
6017 vec
->zvec_namecheck
, vec
->zvec_pool_check
);
6026 error
= vec
->zvec_secpolicy(zc
, innvl
, cr
);
6031 /* legacy ioctls can modify zc_name */
6032 len
= strcspn(zc
->zc_name
, "/@#") + 1;
6033 saved_poolname
= kmem_alloc(len
, KM_SLEEP
);
6034 (void) strlcpy(saved_poolname
, zc
->zc_name
, len
);
6036 if (vec
->zvec_func
!= NULL
) {
6040 nvlist_t
*lognv
= NULL
;
6042 ASSERT(vec
->zvec_legacy_func
== NULL
);
6045 * Add the innvl to the lognv before calling the func,
6046 * in case the func changes the innvl.
6048 if (vec
->zvec_allow_log
) {
6049 lognv
= fnvlist_alloc();
6050 fnvlist_add_string(lognv
, ZPOOL_HIST_IOCTL
,
6052 if (!nvlist_empty(innvl
)) {
6053 fnvlist_add_nvlist(lognv
, ZPOOL_HIST_INPUT_NVL
,
6058 outnvl
= fnvlist_alloc();
6059 error
= vec
->zvec_func(zc
->zc_name
, innvl
, outnvl
);
6061 if (error
== 0 && vec
->zvec_allow_log
&&
6062 spa_open(zc
->zc_name
, &spa
, FTAG
) == 0) {
6063 if (!nvlist_empty(outnvl
)) {
6064 fnvlist_add_nvlist(lognv
, ZPOOL_HIST_OUTPUT_NVL
,
6067 (void) spa_history_log_nvl(spa
, lognv
);
6068 spa_close(spa
, FTAG
);
6070 fnvlist_free(lognv
);
6072 if (!nvlist_empty(outnvl
) || zc
->zc_nvlist_dst_size
!= 0) {
6074 if (vec
->zvec_smush_outnvlist
) {
6075 smusherror
= nvlist_smush(outnvl
,
6076 zc
->zc_nvlist_dst_size
);
6078 if (smusherror
== 0)
6079 puterror
= put_nvlist(zc
, outnvl
);
6085 nvlist_free(outnvl
);
6087 error
= vec
->zvec_legacy_func(zc
);
6092 rc
= ddi_copyout(zc
, (void *)arg
, sizeof (zfs_cmd_t
), flag
);
6093 if (error
== 0 && rc
!= 0)
6094 error
= SET_ERROR(EFAULT
);
6095 if (error
== 0 && vec
->zvec_allow_log
) {
6096 char *s
= tsd_get(zfs_allow_log_key
);
6099 (void) tsd_set(zfs_allow_log_key
, saved_poolname
);
6101 if (saved_poolname
!= NULL
)
6102 strfree(saved_poolname
);
6105 kmem_free(zc
, sizeof (zfs_cmd_t
));
6110 zfs_attach(dev_info_t
*dip
, ddi_attach_cmd_t cmd
)
6112 if (cmd
!= DDI_ATTACH
)
6113 return (DDI_FAILURE
);
6115 if (ddi_create_minor_node(dip
, "zfs", S_IFCHR
, 0,
6116 DDI_PSEUDO
, 0) == DDI_FAILURE
)
6117 return (DDI_FAILURE
);
6121 ddi_report_dev(dip
);
6123 return (DDI_SUCCESS
);
6127 zfs_detach(dev_info_t
*dip
, ddi_detach_cmd_t cmd
)
6129 if (spa_busy() || zfs_busy() || zvol_busy())
6130 return (DDI_FAILURE
);
6132 if (cmd
!= DDI_DETACH
)
6133 return (DDI_FAILURE
);
6137 ddi_prop_remove_all(dip
);
6138 ddi_remove_minor_node(dip
, NULL
);
6140 return (DDI_SUCCESS
);
6145 zfs_info(dev_info_t
*dip
, ddi_info_cmd_t infocmd
, void *arg
, void **result
)
6148 case DDI_INFO_DEVT2DEVINFO
:
6150 return (DDI_SUCCESS
);
6152 case DDI_INFO_DEVT2INSTANCE
:
6153 *result
= (void *)0;
6154 return (DDI_SUCCESS
);
6157 return (DDI_FAILURE
);
6161 * OK, so this is a little weird.
6163 * /dev/zfs is the control node, i.e. minor 0.
6164 * /dev/zvol/[r]dsk/pool/dataset are the zvols, minor > 0.
6166 * /dev/zfs has basically nothing to do except serve up ioctls,
6167 * so most of the standard driver entry points are in zvol.c.
6169 static struct cb_ops zfs_cb_ops
= {
6170 zfsdev_open
, /* open */
6171 zfsdev_close
, /* close */
6172 zvol_strategy
, /* strategy */
6174 zvol_dump
, /* dump */
6175 zvol_read
, /* read */
6176 zvol_write
, /* write */
6177 zfsdev_ioctl
, /* ioctl */
6181 nochpoll
, /* poll */
6182 ddi_prop_op
, /* prop_op */
6183 NULL
, /* streamtab */
6184 D_NEW
| D_MP
| D_64BIT
, /* Driver compatibility flag */
6185 CB_REV
, /* version */
6186 nodev
, /* async read */
6187 nodev
, /* async write */
6190 static struct dev_ops zfs_dev_ops
= {
6191 DEVO_REV
, /* version */
6193 zfs_info
, /* info */
6194 nulldev
, /* identify */
6195 nulldev
, /* probe */
6196 zfs_attach
, /* attach */
6197 zfs_detach
, /* detach */
6199 &zfs_cb_ops
, /* driver operations */
6200 NULL
, /* no bus operations */
6202 ddi_quiesce_not_needed
, /* quiesce */
6205 static struct modldrv zfs_modldrv
= {
6211 static struct modlinkage modlinkage
= {
6213 (void *)&zfs_modlfs
,
6214 (void *)&zfs_modldrv
,
6219 zfs_allow_log_destroy(void *arg
)
6221 char *poolname
= arg
;
6230 spa_init(FREAD
| FWRITE
);
6235 if ((error
= mod_install(&modlinkage
)) != 0) {
6242 tsd_create(&zfs_fsyncer_key
, NULL
);
6243 tsd_create(&rrw_tsd_key
, rrw_tsd_destroy
);
6244 tsd_create(&zfs_allow_log_key
, zfs_allow_log_destroy
);
6246 error
= ldi_ident_from_mod(&modlinkage
, &zfs_li
);
6248 mutex_init(&zfs_share_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
6258 if (spa_busy() || zfs_busy() || zvol_busy() || zio_injection_enabled
)
6259 return (SET_ERROR(EBUSY
));
6261 if ((error
= mod_remove(&modlinkage
)) != 0)
6267 if (zfs_nfsshare_inited
)
6268 (void) ddi_modclose(nfs_mod
);
6269 if (zfs_smbshare_inited
)
6270 (void) ddi_modclose(smbsrv_mod
);
6271 if (zfs_nfsshare_inited
|| zfs_smbshare_inited
)
6272 (void) ddi_modclose(sharefs_mod
);
6274 tsd_destroy(&zfs_fsyncer_key
);
6275 ldi_ident_release(zfs_li
);
6277 mutex_destroy(&zfs_share_lock
);
6283 _info(struct modinfo
*modinfop
)
6285 return (mod_info(&modlinkage
, modinfop
));