4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Portions Copyright 2011 Martin Matuska
25 * Portions Copyright 2012 Pawel Jakub Dawidek <pawel@dawidek.net>
26 * Copyright (c) 2012, Joyent, Inc. All rights reserved.
27 * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
28 * Copyright (c) 2012, Joyent, Inc. All rights reserved.
29 * Copyright (c) 201i3 by Delphix. All rights reserved.
30 * Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
31 * Copyright (c) 2013 Steven Hartland. All rights reserved.
32 * Copyright (c) 2014, Nexenta Systems, Inc. All rights reserved.
38 * This file handles the ioctls to /dev/zfs, used for configuring ZFS storage
39 * pools and filesystems, e.g. with /sbin/zfs and /sbin/zpool.
41 * There are two ways that we handle ioctls: the legacy way where almost
42 * all of the logic is in the ioctl callback, and the new way where most
43 * of the marshalling is handled in the common entry point, zfsdev_ioctl().
45 * Non-legacy ioctls should be registered by calling
46 * zfs_ioctl_register() from zfs_ioctl_init(). The ioctl is invoked
47 * from userland by lzc_ioctl().
49 * The registration arguments are as follows:
52 * The name of the ioctl. This is used for history logging. If the
53 * ioctl returns successfully (the callback returns 0), and allow_log
54 * is true, then a history log entry will be recorded with the input &
55 * output nvlists. The log entry can be printed with "zpool history -i".
58 * The ioctl request number, which userland will pass to ioctl(2).
59 * The ioctl numbers can change from release to release, because
60 * the caller (libzfs) must be matched to the kernel.
62 * zfs_secpolicy_func_t *secpolicy
63 * This function will be called before the zfs_ioc_func_t, to
64 * determine if this operation is permitted. It should return EPERM
65 * on failure, and 0 on success. Checks include determining if the
66 * dataset is visible in this zone, and if the user has either all
67 * zfs privileges in the zone (SYS_MOUNT), or has been granted permission
68 * to do this operation on this dataset with "zfs allow".
70 * zfs_ioc_namecheck_t namecheck
71 * This specifies what to expect in the zfs_cmd_t:zc_name -- a pool
72 * name, a dataset name, or nothing. If the name is not well-formed,
73 * the ioctl will fail and the callback will not be called.
74 * Therefore, the callback can assume that the name is well-formed
75 * (e.g. is null-terminated, doesn't have more than one '@' character,
76 * doesn't have invalid characters).
78 * zfs_ioc_poolcheck_t pool_check
79 * This specifies requirements on the pool state. If the pool does
80 * not meet them (is suspended or is readonly), the ioctl will fail
81 * and the callback will not be called. If any checks are specified
82 * (i.e. it is not POOL_CHECK_NONE), namecheck must not be NO_NAME.
83 * Multiple checks can be or-ed together (e.g. POOL_CHECK_SUSPENDED |
84 * POOL_CHECK_READONLY).
86 * boolean_t smush_outnvlist
87 * If smush_outnvlist is true, then the output is presumed to be a
88 * list of errors, and it will be "smushed" down to fit into the
89 * caller's buffer, by removing some entries and replacing them with a
90 * single "N_MORE_ERRORS" entry indicating how many were removed. See
91 * nvlist_smush() for details. If smush_outnvlist is false, and the
92 * outnvlist does not fit into the userland-provided buffer, then the
93 * ioctl will fail with ENOMEM.
95 * zfs_ioc_func_t *func
96 * The callback function that will perform the operation.
98 * The callback should return 0 on success, or an error number on
99 * failure. If the function fails, the userland ioctl will return -1,
100 * and errno will be set to the callback's return value. The callback
101 * will be called with the following arguments:
104 * The name of the pool or dataset to operate on, from
105 * zfs_cmd_t:zc_name. The 'namecheck' argument specifies the
106 * expected type (pool, dataset, or none).
109 * The input nvlist, deserialized from zfs_cmd_t:zc_nvlist_src. Or
110 * NULL if no input nvlist was provided. Changes to this nvlist are
111 * ignored. If the input nvlist could not be deserialized, the
112 * ioctl will fail and the callback will not be called.
115 * The output nvlist, initially empty. The callback can fill it in,
116 * and it will be returned to userland by serializing it into
117 * zfs_cmd_t:zc_nvlist_dst. If it is non-empty, and serialization
118 * fails (e.g. because the caller didn't supply a large enough
119 * buffer), then the overall ioctl will fail. See the
120 * 'smush_nvlist' argument above for additional behaviors.
122 * There are two typical uses of the output nvlist:
123 * - To return state, e.g. property values. In this case,
124 * smush_outnvlist should be false. If the buffer was not large
125 * enough, the caller will reallocate a larger buffer and try
128 * - To return multiple errors from an ioctl which makes on-disk
129 * changes. In this case, smush_outnvlist should be true.
130 * Ioctls which make on-disk modifications should generally not
131 * use the outnvl if they succeed, because the caller can not
132 * distinguish between the operation failing, and
133 * deserialization failing.
136 #include <sys/types.h>
137 #include <sys/param.h>
138 #include <sys/errno.h>
141 #include <sys/modctl.h>
142 #include <sys/open.h>
143 #include <sys/file.h>
144 #include <sys/kmem.h>
145 #include <sys/conf.h>
146 #include <sys/cmn_err.h>
147 #include <sys/stat.h>
148 #include <sys/zfs_ioctl.h>
149 #include <sys/zfs_vfsops.h>
150 #include <sys/zfs_znode.h>
153 #include <sys/spa_impl.h>
154 #include <sys/vdev.h>
155 #include <sys/priv_impl.h>
157 #include <sys/dsl_dir.h>
158 #include <sys/dsl_dataset.h>
159 #include <sys/dsl_prop.h>
160 #include <sys/dsl_deleg.h>
161 #include <sys/dmu_objset.h>
162 #include <sys/dmu_impl.h>
163 #include <sys/dmu_tx.h>
165 #include <sys/sunddi.h>
166 #include <sys/sunldi.h>
167 #include <sys/policy.h>
168 #include <sys/zone.h>
169 #include <sys/nvpair.h>
170 #include <sys/pathname.h>
171 #include <sys/mount.h>
173 #include <sys/fs/zfs.h>
174 #include <sys/zfs_ctldir.h>
175 #include <sys/zfs_dir.h>
176 #include <sys/zfs_onexit.h>
177 #include <sys/zvol.h>
178 #include <sys/dsl_scan.h>
179 #include <sharefs/share.h>
180 #include <sys/fm/util.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>
188 #include <linux/miscdevice.h>
189 #include <linux/module_compat.h>
191 #include "zfs_namecheck.h"
192 #include "zfs_prop.h"
193 #include "zfs_deleg.h"
194 #include "zfs_comutil.h"
196 kmutex_t zfsdev_state_lock
;
197 zfsdev_state_t
*zfsdev_state_list
;
199 extern void zfs_init(void);
200 extern void zfs_fini(void);
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 #if defined(HAVE_DECLARE_EVENT_CLASS)
253 __dprintf(const char *file
, const char *func
, int line
, const char *fmt
, ...)
257 char *buf
= kmem_alloc(size
, KM_SLEEP
);
262 * Get rid of annoying prefix to filename.
264 newfile
= strrchr(file
, '/');
265 if (newfile
!= NULL
) {
266 newfile
= newfile
+ 1; /* Get rid of leading / */
272 (void) vsnprintf(buf
, size
, fmt
, adx
);
276 * Get rid of trailing newline.
278 nl
= strrchr(buf
, '\n');
283 * To get this data enable the zfs__dprintf trace point as shown:
285 * # Enable zfs__dprintf tracepoint, clear the tracepoint ring buffer
286 * $ echo 1 > /sys/module/zfs/parameters/zfs_flags
287 * $ echo 1 > /sys/kernel/debug/tracing/events/zfs/enable
288 * $ echo 0 > /sys/kernel/debug/tracing/trace
290 * # Dump the ring buffer.
291 * $ cat /sys/kernel/debug/tracing/trace
293 DTRACE_PROBE4(zfs__dprintf
,
294 char *, newfile
, char *, func
, int, line
, char *, buf
);
296 kmem_free(buf
, size
);
298 #endif /* HAVE_DECLARE_EVENT_CLASS */
301 history_str_free(char *buf
)
303 kmem_free(buf
, HIS_MAX_RECORD_LEN
);
307 history_str_get(zfs_cmd_t
*zc
)
311 if (zc
->zc_history
== 0)
314 buf
= kmem_alloc(HIS_MAX_RECORD_LEN
, KM_SLEEP
);
315 if (copyinstr((void *)(uintptr_t)zc
->zc_history
,
316 buf
, HIS_MAX_RECORD_LEN
, NULL
) != 0) {
317 history_str_free(buf
);
321 buf
[HIS_MAX_RECORD_LEN
-1] = '\0';
327 * Check to see if the named dataset is currently defined as bootable
330 zfs_is_bootfs(const char *name
)
334 if (dmu_objset_hold(name
, FTAG
, &os
) == 0) {
336 ret
= (dmu_objset_id(os
) == spa_bootfs(dmu_objset_spa(os
)));
337 dmu_objset_rele(os
, FTAG
);
344 * Return non-zero if the spa version is less than requested version.
347 zfs_earlier_version(const char *name
, int version
)
351 if (spa_open(name
, &spa
, FTAG
) == 0) {
352 if (spa_version(spa
) < version
) {
353 spa_close(spa
, FTAG
);
356 spa_close(spa
, FTAG
);
362 * Return TRUE if the ZPL version is less than requested version.
365 zpl_earlier_version(const char *name
, int version
)
368 boolean_t rc
= B_TRUE
;
370 if (dmu_objset_hold(name
, FTAG
, &os
) == 0) {
373 if (dmu_objset_type(os
) != DMU_OST_ZFS
) {
374 dmu_objset_rele(os
, FTAG
);
377 /* XXX reading from non-owned objset */
378 if (zfs_get_zplprop(os
, ZFS_PROP_VERSION
, &zplversion
) == 0)
379 rc
= zplversion
< version
;
380 dmu_objset_rele(os
, FTAG
);
386 zfs_log_history(zfs_cmd_t
*zc
)
391 if ((buf
= history_str_get(zc
)) == NULL
)
394 if (spa_open(zc
->zc_name
, &spa
, FTAG
) == 0) {
395 if (spa_version(spa
) >= SPA_VERSION_ZPOOL_HISTORY
)
396 (void) spa_history_log(spa
, buf
);
397 spa_close(spa
, FTAG
);
399 history_str_free(buf
);
403 * Policy for top-level read operations (list pools). Requires no privileges,
404 * and can be used in the local zone, as there is no associated dataset.
408 zfs_secpolicy_none(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
414 * Policy for dataset read operations (list children, get statistics). Requires
415 * no privileges, but must be visible in the local zone.
419 zfs_secpolicy_read(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
421 if (INGLOBALZONE(curproc
) ||
422 zone_dataset_visible(zc
->zc_name
, NULL
))
425 return (SET_ERROR(ENOENT
));
429 zfs_dozonecheck_impl(const char *dataset
, uint64_t zoned
, cred_t
*cr
)
434 * The dataset must be visible by this zone -- check this first
435 * so they don't see EPERM on something they shouldn't know about.
437 if (!INGLOBALZONE(curproc
) &&
438 !zone_dataset_visible(dataset
, &writable
))
439 return (SET_ERROR(ENOENT
));
441 if (INGLOBALZONE(curproc
)) {
443 * If the fs is zoned, only root can access it from the
446 if (secpolicy_zfs(cr
) && zoned
)
447 return (SET_ERROR(EPERM
));
450 * If we are in a local zone, the 'zoned' property must be set.
453 return (SET_ERROR(EPERM
));
455 /* must be writable by this zone */
457 return (SET_ERROR(EPERM
));
463 zfs_dozonecheck(const char *dataset
, cred_t
*cr
)
467 if (dsl_prop_get_integer(dataset
, "zoned", &zoned
, NULL
))
468 return (SET_ERROR(ENOENT
));
470 return (zfs_dozonecheck_impl(dataset
, zoned
, cr
));
474 zfs_dozonecheck_ds(const char *dataset
, dsl_dataset_t
*ds
, cred_t
*cr
)
478 if (dsl_prop_get_int_ds(ds
, "zoned", &zoned
))
479 return (SET_ERROR(ENOENT
));
481 return (zfs_dozonecheck_impl(dataset
, zoned
, cr
));
485 zfs_secpolicy_write_perms_ds(const char *name
, dsl_dataset_t
*ds
,
486 const char *perm
, cred_t
*cr
)
490 error
= zfs_dozonecheck_ds(name
, ds
, cr
);
492 error
= secpolicy_zfs(cr
);
494 error
= dsl_deleg_access_impl(ds
, perm
, cr
);
500 zfs_secpolicy_write_perms(const char *name
, const char *perm
, cred_t
*cr
)
506 error
= dsl_pool_hold(name
, FTAG
, &dp
);
510 error
= dsl_dataset_hold(dp
, name
, FTAG
, &ds
);
512 dsl_pool_rele(dp
, FTAG
);
516 error
= zfs_secpolicy_write_perms_ds(name
, ds
, perm
, cr
);
518 dsl_dataset_rele(ds
, FTAG
);
519 dsl_pool_rele(dp
, FTAG
);
524 * Policy for setting the security label property.
526 * Returns 0 for success, non-zero for access and other errors.
529 zfs_set_slabel_policy(const char *name
, char *strval
, cred_t
*cr
)
532 char ds_hexsl
[MAXNAMELEN
];
533 bslabel_t ds_sl
, new_sl
;
534 boolean_t new_default
= FALSE
;
536 int needed_priv
= -1;
539 /* First get the existing dataset label. */
540 error
= dsl_prop_get(name
, zfs_prop_to_name(ZFS_PROP_MLSLABEL
),
541 1, sizeof (ds_hexsl
), &ds_hexsl
, NULL
);
543 return (SET_ERROR(EPERM
));
545 if (strcasecmp(strval
, ZFS_MLSLABEL_DEFAULT
) == 0)
548 /* The label must be translatable */
549 if (!new_default
&& (hexstr_to_label(strval
, &new_sl
) != 0))
550 return (SET_ERROR(EINVAL
));
553 * In a non-global zone, disallow attempts to set a label that
554 * doesn't match that of the zone; otherwise no other checks
557 if (!INGLOBALZONE(curproc
)) {
558 if (new_default
|| !blequal(&new_sl
, CR_SL(CRED())))
559 return (SET_ERROR(EPERM
));
564 * For global-zone datasets (i.e., those whose zoned property is
565 * "off", verify that the specified new label is valid for the
568 if (dsl_prop_get_integer(name
,
569 zfs_prop_to_name(ZFS_PROP_ZONED
), &zoned
, NULL
))
570 return (SET_ERROR(EPERM
));
572 if (zfs_check_global_label(name
, strval
) != 0)
573 return (SET_ERROR(EPERM
));
577 * If the existing dataset label is nondefault, check if the
578 * dataset is mounted (label cannot be changed while mounted).
579 * Get the zfs_sb_t; if there isn't one, then the dataset isn't
580 * mounted (or isn't a dataset, doesn't exist, ...).
582 if (strcasecmp(ds_hexsl
, ZFS_MLSLABEL_DEFAULT
) != 0) {
584 static char *setsl_tag
= "setsl_tag";
587 * Try to own the dataset; abort if there is any error,
588 * (e.g., already mounted, in use, or other error).
590 error
= dmu_objset_own(name
, DMU_OST_ZFS
, B_TRUE
,
593 return (SET_ERROR(EPERM
));
595 dmu_objset_disown(os
, setsl_tag
);
598 needed_priv
= PRIV_FILE_DOWNGRADE_SL
;
602 if (hexstr_to_label(strval
, &new_sl
) != 0)
603 return (SET_ERROR(EPERM
));
605 if (blstrictdom(&ds_sl
, &new_sl
))
606 needed_priv
= PRIV_FILE_DOWNGRADE_SL
;
607 else if (blstrictdom(&new_sl
, &ds_sl
))
608 needed_priv
= PRIV_FILE_UPGRADE_SL
;
610 /* dataset currently has a default label */
612 needed_priv
= PRIV_FILE_UPGRADE_SL
;
616 if (needed_priv
!= -1)
617 return (PRIV_POLICY(cr
, needed_priv
, B_FALSE
, EPERM
, NULL
));
621 #endif /* HAVE_MLSLABEL */
625 zfs_secpolicy_setprop(const char *dsname
, zfs_prop_t prop
, nvpair_t
*propval
,
631 * Check permissions for special properties.
638 * Disallow setting of 'zoned' from within a local zone.
640 if (!INGLOBALZONE(curproc
))
641 return (SET_ERROR(EPERM
));
645 if (!INGLOBALZONE(curproc
)) {
647 char setpoint
[MAXNAMELEN
];
649 * Unprivileged users are allowed to modify the
650 * quota on things *under* (ie. contained by)
651 * the thing they own.
653 if (dsl_prop_get_integer(dsname
, "zoned", &zoned
,
655 return (SET_ERROR(EPERM
));
656 if (!zoned
|| strlen(dsname
) <= strlen(setpoint
))
657 return (SET_ERROR(EPERM
));
661 case ZFS_PROP_MLSLABEL
:
662 if (!is_system_labeled())
663 return (SET_ERROR(EPERM
));
665 if (nvpair_value_string(propval
, &strval
) == 0) {
668 err
= zfs_set_slabel_policy(dsname
, strval
, CRED());
675 return (zfs_secpolicy_write_perms(dsname
, zfs_prop_to_name(prop
), cr
));
680 zfs_secpolicy_set_fsacl(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
684 error
= zfs_dozonecheck(zc
->zc_name
, cr
);
689 * permission to set permissions will be evaluated later in
690 * dsl_deleg_can_allow()
697 zfs_secpolicy_rollback(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
699 return (zfs_secpolicy_write_perms(zc
->zc_name
,
700 ZFS_DELEG_PERM_ROLLBACK
, cr
));
705 zfs_secpolicy_send(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
713 * Generate the current snapshot name from the given objsetid, then
714 * use that name for the secpolicy/zone checks.
716 cp
= strchr(zc
->zc_name
, '@');
718 return (SET_ERROR(EINVAL
));
719 error
= dsl_pool_hold(zc
->zc_name
, FTAG
, &dp
);
723 error
= dsl_dataset_hold_obj(dp
, zc
->zc_sendobj
, FTAG
, &ds
);
725 dsl_pool_rele(dp
, FTAG
);
729 dsl_dataset_name(ds
, zc
->zc_name
);
731 error
= zfs_secpolicy_write_perms_ds(zc
->zc_name
, ds
,
732 ZFS_DELEG_PERM_SEND
, cr
);
733 dsl_dataset_rele(ds
, FTAG
);
734 dsl_pool_rele(dp
, FTAG
);
741 zfs_secpolicy_send_new(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
743 return (zfs_secpolicy_write_perms(zc
->zc_name
,
744 ZFS_DELEG_PERM_SEND
, cr
));
747 #ifdef HAVE_SMB_SHARE
750 zfs_secpolicy_deleg_share(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
755 if ((error
= lookupname(zc
->zc_value
, UIO_SYSSPACE
,
756 NO_FOLLOW
, NULL
, &vp
)) != 0)
759 /* Now make sure mntpnt and dataset are ZFS */
761 if (vp
->v_vfsp
->vfs_fstype
!= zfsfstype
||
762 (strcmp((char *)refstr_value(vp
->v_vfsp
->vfs_resource
),
763 zc
->zc_name
) != 0)) {
765 return (SET_ERROR(EPERM
));
769 return (dsl_deleg_access(zc
->zc_name
,
770 ZFS_DELEG_PERM_SHARE
, cr
));
772 #endif /* HAVE_SMB_SHARE */
775 zfs_secpolicy_share(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
777 #ifdef HAVE_SMB_SHARE
778 if (!INGLOBALZONE(curproc
))
779 return (SET_ERROR(EPERM
));
781 if (secpolicy_nfs(cr
) == 0) {
784 return (zfs_secpolicy_deleg_share(zc
, innvl
, cr
));
787 return (SET_ERROR(ENOTSUP
));
788 #endif /* HAVE_SMB_SHARE */
792 zfs_secpolicy_smb_acl(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
794 #ifdef HAVE_SMB_SHARE
795 if (!INGLOBALZONE(curproc
))
796 return (SET_ERROR(EPERM
));
798 if (secpolicy_smb(cr
) == 0) {
801 return (zfs_secpolicy_deleg_share(zc
, innvl
, cr
));
804 return (SET_ERROR(ENOTSUP
));
805 #endif /* HAVE_SMB_SHARE */
809 zfs_get_parent(const char *datasetname
, char *parent
, int parentsize
)
814 * Remove the @bla or /bla from the end of the name to get the parent.
816 (void) strncpy(parent
, datasetname
, parentsize
);
817 cp
= strrchr(parent
, '@');
821 cp
= strrchr(parent
, '/');
823 return (SET_ERROR(ENOENT
));
831 zfs_secpolicy_destroy_perms(const char *name
, cred_t
*cr
)
835 if ((error
= zfs_secpolicy_write_perms(name
,
836 ZFS_DELEG_PERM_MOUNT
, cr
)) != 0)
839 return (zfs_secpolicy_write_perms(name
, ZFS_DELEG_PERM_DESTROY
, cr
));
844 zfs_secpolicy_destroy(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
846 return (zfs_secpolicy_destroy_perms(zc
->zc_name
, cr
));
850 * Destroying snapshots with delegated permissions requires
851 * descendant mount and destroy permissions.
855 zfs_secpolicy_destroy_snaps(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
858 nvpair_t
*pair
, *nextpair
;
861 if (nvlist_lookup_nvlist(innvl
, "snaps", &snaps
) != 0)
862 return (SET_ERROR(EINVAL
));
863 for (pair
= nvlist_next_nvpair(snaps
, NULL
); pair
!= NULL
;
865 nextpair
= nvlist_next_nvpair(snaps
, pair
);
866 error
= zfs_secpolicy_destroy_perms(nvpair_name(pair
), cr
);
867 if (error
== ENOENT
) {
869 * Ignore any snapshots that don't exist (we consider
870 * them "already destroyed"). Remove the name from the
871 * nvl here in case the snapshot is created between
872 * now and when we try to destroy it (in which case
873 * we don't want to destroy it since we haven't
874 * checked for permission).
876 fnvlist_remove_nvpair(snaps
, pair
);
887 zfs_secpolicy_rename_perms(const char *from
, const char *to
, cred_t
*cr
)
889 char parentname
[MAXNAMELEN
];
892 if ((error
= zfs_secpolicy_write_perms(from
,
893 ZFS_DELEG_PERM_RENAME
, cr
)) != 0)
896 if ((error
= zfs_secpolicy_write_perms(from
,
897 ZFS_DELEG_PERM_MOUNT
, cr
)) != 0)
900 if ((error
= zfs_get_parent(to
, parentname
,
901 sizeof (parentname
))) != 0)
904 if ((error
= zfs_secpolicy_write_perms(parentname
,
905 ZFS_DELEG_PERM_CREATE
, cr
)) != 0)
908 if ((error
= zfs_secpolicy_write_perms(parentname
,
909 ZFS_DELEG_PERM_MOUNT
, cr
)) != 0)
917 zfs_secpolicy_rename(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
919 return (zfs_secpolicy_rename_perms(zc
->zc_name
, zc
->zc_value
, cr
));
924 zfs_secpolicy_promote(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
927 dsl_dataset_t
*clone
;
930 error
= zfs_secpolicy_write_perms(zc
->zc_name
,
931 ZFS_DELEG_PERM_PROMOTE
, cr
);
935 error
= dsl_pool_hold(zc
->zc_name
, FTAG
, &dp
);
939 error
= dsl_dataset_hold(dp
, zc
->zc_name
, FTAG
, &clone
);
942 char parentname
[MAXNAMELEN
];
943 dsl_dataset_t
*origin
= NULL
;
947 error
= dsl_dataset_hold_obj(dd
->dd_pool
,
948 dd
->dd_phys
->dd_origin_obj
, FTAG
, &origin
);
950 dsl_dataset_rele(clone
, FTAG
);
951 dsl_pool_rele(dp
, FTAG
);
955 error
= zfs_secpolicy_write_perms_ds(zc
->zc_name
, clone
,
956 ZFS_DELEG_PERM_MOUNT
, cr
);
958 dsl_dataset_name(origin
, parentname
);
960 error
= zfs_secpolicy_write_perms_ds(parentname
, origin
,
961 ZFS_DELEG_PERM_PROMOTE
, cr
);
963 dsl_dataset_rele(clone
, FTAG
);
964 dsl_dataset_rele(origin
, FTAG
);
966 dsl_pool_rele(dp
, FTAG
);
972 zfs_secpolicy_recv(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
976 if ((error
= zfs_secpolicy_write_perms(zc
->zc_name
,
977 ZFS_DELEG_PERM_RECEIVE
, cr
)) != 0)
980 if ((error
= zfs_secpolicy_write_perms(zc
->zc_name
,
981 ZFS_DELEG_PERM_MOUNT
, cr
)) != 0)
984 return (zfs_secpolicy_write_perms(zc
->zc_name
,
985 ZFS_DELEG_PERM_CREATE
, cr
));
989 zfs_secpolicy_snapshot_perms(const char *name
, cred_t
*cr
)
991 return (zfs_secpolicy_write_perms(name
,
992 ZFS_DELEG_PERM_SNAPSHOT
, cr
));
996 * Check for permission to create each snapshot in the nvlist.
1000 zfs_secpolicy_snapshot(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1006 if (nvlist_lookup_nvlist(innvl
, "snaps", &snaps
) != 0)
1007 return (SET_ERROR(EINVAL
));
1008 for (pair
= nvlist_next_nvpair(snaps
, NULL
); pair
!= NULL
;
1009 pair
= nvlist_next_nvpair(snaps
, pair
)) {
1010 char *name
= nvpair_name(pair
);
1011 char *atp
= strchr(name
, '@');
1014 error
= SET_ERROR(EINVAL
);
1018 error
= zfs_secpolicy_snapshot_perms(name
, cr
);
1027 * Check for permission to create each snapshot in the nvlist.
1031 zfs_secpolicy_bookmark(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1036 for (pair
= nvlist_next_nvpair(innvl
, NULL
);
1037 pair
!= NULL
; pair
= nvlist_next_nvpair(innvl
, pair
)) {
1038 char *name
= nvpair_name(pair
);
1039 char *hashp
= strchr(name
, '#');
1041 if (hashp
== NULL
) {
1042 error
= SET_ERROR(EINVAL
);
1046 error
= zfs_secpolicy_write_perms(name
,
1047 ZFS_DELEG_PERM_BOOKMARK
, cr
);
1057 zfs_secpolicy_destroy_bookmarks(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1059 nvpair_t
*pair
, *nextpair
;
1062 for (pair
= nvlist_next_nvpair(innvl
, NULL
); pair
!= NULL
;
1064 char *name
= nvpair_name(pair
);
1065 char *hashp
= strchr(name
, '#');
1066 nextpair
= nvlist_next_nvpair(innvl
, pair
);
1068 if (hashp
== NULL
) {
1069 error
= SET_ERROR(EINVAL
);
1074 error
= zfs_secpolicy_write_perms(name
,
1075 ZFS_DELEG_PERM_DESTROY
, cr
);
1077 if (error
== ENOENT
) {
1079 * Ignore any filesystems that don't exist (we consider
1080 * their bookmarks "already destroyed"). Remove
1081 * the name from the nvl here in case the filesystem
1082 * is created between now and when we try to destroy
1083 * the bookmark (in which case we don't want to
1084 * destroy it since we haven't checked for permission).
1086 fnvlist_remove_nvpair(innvl
, pair
);
1098 zfs_secpolicy_log_history(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1101 * Even root must have a proper TSD so that we know what pool
1104 if (tsd_get(zfs_allow_log_key
) == NULL
)
1105 return (SET_ERROR(EPERM
));
1110 zfs_secpolicy_create_clone(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1112 char parentname
[MAXNAMELEN
];
1116 if ((error
= zfs_get_parent(zc
->zc_name
, parentname
,
1117 sizeof (parentname
))) != 0)
1120 if (nvlist_lookup_string(innvl
, "origin", &origin
) == 0 &&
1121 (error
= zfs_secpolicy_write_perms(origin
,
1122 ZFS_DELEG_PERM_CLONE
, cr
)) != 0)
1125 if ((error
= zfs_secpolicy_write_perms(parentname
,
1126 ZFS_DELEG_PERM_CREATE
, cr
)) != 0)
1129 return (zfs_secpolicy_write_perms(parentname
,
1130 ZFS_DELEG_PERM_MOUNT
, cr
));
1134 * Policy for pool operations - create/destroy pools, add vdevs, etc. Requires
1135 * SYS_CONFIG privilege, which is not available in a local zone.
1139 zfs_secpolicy_config(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1141 if (secpolicy_sys_config(cr
, B_FALSE
) != 0)
1142 return (SET_ERROR(EPERM
));
1148 * Policy for object to name lookups.
1152 zfs_secpolicy_diff(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1156 if ((error
= secpolicy_sys_config(cr
, B_FALSE
)) == 0)
1159 error
= zfs_secpolicy_write_perms(zc
->zc_name
, ZFS_DELEG_PERM_DIFF
, cr
);
1164 * Policy for fault injection. Requires all privileges.
1168 zfs_secpolicy_inject(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1170 return (secpolicy_zinject(cr
));
1175 zfs_secpolicy_inherit_prop(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1177 zfs_prop_t prop
= zfs_name_to_prop(zc
->zc_value
);
1179 if (prop
== ZPROP_INVAL
) {
1180 if (!zfs_prop_user(zc
->zc_value
))
1181 return (SET_ERROR(EINVAL
));
1182 return (zfs_secpolicy_write_perms(zc
->zc_name
,
1183 ZFS_DELEG_PERM_USERPROP
, cr
));
1185 return (zfs_secpolicy_setprop(zc
->zc_name
, prop
,
1191 zfs_secpolicy_userspace_one(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1193 int err
= zfs_secpolicy_read(zc
, innvl
, cr
);
1197 if (zc
->zc_objset_type
>= ZFS_NUM_USERQUOTA_PROPS
)
1198 return (SET_ERROR(EINVAL
));
1200 if (zc
->zc_value
[0] == 0) {
1202 * They are asking about a posix uid/gid. If it's
1203 * themself, allow it.
1205 if (zc
->zc_objset_type
== ZFS_PROP_USERUSED
||
1206 zc
->zc_objset_type
== ZFS_PROP_USERQUOTA
) {
1207 if (zc
->zc_guid
== crgetuid(cr
))
1210 if (groupmember(zc
->zc_guid
, cr
))
1215 return (zfs_secpolicy_write_perms(zc
->zc_name
,
1216 userquota_perms
[zc
->zc_objset_type
], cr
));
1220 zfs_secpolicy_userspace_many(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1222 int err
= zfs_secpolicy_read(zc
, innvl
, cr
);
1226 if (zc
->zc_objset_type
>= ZFS_NUM_USERQUOTA_PROPS
)
1227 return (SET_ERROR(EINVAL
));
1229 return (zfs_secpolicy_write_perms(zc
->zc_name
,
1230 userquota_perms
[zc
->zc_objset_type
], cr
));
1235 zfs_secpolicy_userspace_upgrade(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1237 return (zfs_secpolicy_setprop(zc
->zc_name
, ZFS_PROP_VERSION
,
1243 zfs_secpolicy_hold(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1249 error
= nvlist_lookup_nvlist(innvl
, "holds", &holds
);
1251 return (SET_ERROR(EINVAL
));
1253 for (pair
= nvlist_next_nvpair(holds
, NULL
); pair
!= NULL
;
1254 pair
= nvlist_next_nvpair(holds
, pair
)) {
1255 char fsname
[MAXNAMELEN
];
1256 error
= dmu_fsname(nvpair_name(pair
), fsname
);
1259 error
= zfs_secpolicy_write_perms(fsname
,
1260 ZFS_DELEG_PERM_HOLD
, cr
);
1269 zfs_secpolicy_release(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1274 for (pair
= nvlist_next_nvpair(innvl
, NULL
); pair
!= NULL
;
1275 pair
= nvlist_next_nvpair(innvl
, pair
)) {
1276 char fsname
[MAXNAMELEN
];
1277 error
= dmu_fsname(nvpair_name(pair
), fsname
);
1280 error
= zfs_secpolicy_write_perms(fsname
,
1281 ZFS_DELEG_PERM_RELEASE
, cr
);
1289 * Policy for allowing temporary snapshots to be taken or released
1292 zfs_secpolicy_tmp_snapshot(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1295 * A temporary snapshot is the same as a snapshot,
1296 * hold, destroy and release all rolled into one.
1297 * Delegated diff alone is sufficient that we allow this.
1301 if ((error
= zfs_secpolicy_write_perms(zc
->zc_name
,
1302 ZFS_DELEG_PERM_DIFF
, cr
)) == 0)
1305 error
= zfs_secpolicy_snapshot_perms(zc
->zc_name
, cr
);
1307 error
= zfs_secpolicy_hold(zc
, innvl
, cr
);
1309 error
= zfs_secpolicy_release(zc
, innvl
, cr
);
1311 error
= zfs_secpolicy_destroy(zc
, innvl
, cr
);
1316 * Returns the nvlist as specified by the user in the zfs_cmd_t.
1319 get_nvlist(uint64_t nvl
, uint64_t size
, int iflag
, nvlist_t
**nvp
)
1323 nvlist_t
*list
= NULL
;
1326 * Read in and unpack the user-supplied nvlist.
1329 return (SET_ERROR(EINVAL
));
1331 packed
= kmem_alloc(size
, KM_SLEEP
);
1333 if ((error
= ddi_copyin((void *)(uintptr_t)nvl
, packed
, size
,
1335 kmem_free(packed
, size
);
1339 if ((error
= nvlist_unpack(packed
, size
, &list
, 0)) != 0) {
1340 kmem_free(packed
, size
);
1344 kmem_free(packed
, size
);
1351 * Reduce the size of this nvlist until it can be serialized in 'max' bytes.
1352 * Entries will be removed from the end of the nvlist, and one int32 entry
1353 * named "N_MORE_ERRORS" will be added indicating how many entries were
1357 nvlist_smush(nvlist_t
*errors
, size_t max
)
1361 size
= fnvlist_size(errors
);
1364 nvpair_t
*more_errors
;
1368 return (SET_ERROR(ENOMEM
));
1370 fnvlist_add_int32(errors
, ZPROP_N_MORE_ERRORS
, 0);
1371 more_errors
= nvlist_prev_nvpair(errors
, NULL
);
1374 nvpair_t
*pair
= nvlist_prev_nvpair(errors
,
1376 fnvlist_remove_nvpair(errors
, pair
);
1378 size
= fnvlist_size(errors
);
1379 } while (size
> max
);
1381 fnvlist_remove_nvpair(errors
, more_errors
);
1382 fnvlist_add_int32(errors
, ZPROP_N_MORE_ERRORS
, n
);
1383 ASSERT3U(fnvlist_size(errors
), <=, max
);
1390 put_nvlist(zfs_cmd_t
*zc
, nvlist_t
*nvl
)
1392 char *packed
= NULL
;
1396 size
= fnvlist_size(nvl
);
1398 if (size
> zc
->zc_nvlist_dst_size
) {
1399 error
= SET_ERROR(ENOMEM
);
1401 packed
= fnvlist_pack(nvl
, &size
);
1402 if (ddi_copyout(packed
, (void *)(uintptr_t)zc
->zc_nvlist_dst
,
1403 size
, zc
->zc_iflags
) != 0)
1404 error
= SET_ERROR(EFAULT
);
1405 fnvlist_pack_free(packed
, size
);
1408 zc
->zc_nvlist_dst_size
= size
;
1409 zc
->zc_nvlist_dst_filled
= B_TRUE
;
1414 get_zfs_sb(const char *dsname
, zfs_sb_t
**zsbp
)
1419 error
= dmu_objset_hold(dsname
, FTAG
, &os
);
1422 if (dmu_objset_type(os
) != DMU_OST_ZFS
) {
1423 dmu_objset_rele(os
, FTAG
);
1424 return (SET_ERROR(EINVAL
));
1427 mutex_enter(&os
->os_user_ptr_lock
);
1428 *zsbp
= dmu_objset_get_user(os
);
1429 if (*zsbp
&& (*zsbp
)->z_sb
) {
1430 atomic_inc(&((*zsbp
)->z_sb
->s_active
));
1432 error
= SET_ERROR(ESRCH
);
1434 mutex_exit(&os
->os_user_ptr_lock
);
1435 dmu_objset_rele(os
, FTAG
);
1440 * Find a zfs_sb_t for a mounted filesystem, or create our own, in which
1441 * case its z_sb will be NULL, and it will be opened as the owner.
1442 * If 'writer' is set, the z_teardown_lock will be held for RW_WRITER,
1443 * which prevents all inode ops from running.
1446 zfs_sb_hold(const char *name
, void *tag
, zfs_sb_t
**zsbp
, boolean_t writer
)
1450 if (get_zfs_sb(name
, zsbp
) != 0)
1451 error
= zfs_sb_create(name
, zsbp
);
1453 rrw_enter(&(*zsbp
)->z_teardown_lock
, (writer
) ? RW_WRITER
:
1455 if ((*zsbp
)->z_unmounted
) {
1457 * XXX we could probably try again, since the unmounting
1458 * thread should be just about to disassociate the
1459 * objset from the zsb.
1461 rrw_exit(&(*zsbp
)->z_teardown_lock
, tag
);
1462 return (SET_ERROR(EBUSY
));
1469 zfs_sb_rele(zfs_sb_t
*zsb
, void *tag
)
1471 rrw_exit(&zsb
->z_teardown_lock
, tag
);
1474 deactivate_super(zsb
->z_sb
);
1476 dmu_objset_disown(zsb
->z_os
, zsb
);
1482 zfs_ioc_pool_create(zfs_cmd_t
*zc
)
1485 nvlist_t
*config
, *props
= NULL
;
1486 nvlist_t
*rootprops
= NULL
;
1487 nvlist_t
*zplprops
= NULL
;
1489 if ((error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1490 zc
->zc_iflags
, &config
)))
1493 if (zc
->zc_nvlist_src_size
!= 0 && (error
=
1494 get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
1495 zc
->zc_iflags
, &props
))) {
1496 nvlist_free(config
);
1501 nvlist_t
*nvl
= NULL
;
1502 uint64_t version
= SPA_VERSION
;
1504 (void) nvlist_lookup_uint64(props
,
1505 zpool_prop_to_name(ZPOOL_PROP_VERSION
), &version
);
1506 if (!SPA_VERSION_IS_SUPPORTED(version
)) {
1507 error
= SET_ERROR(EINVAL
);
1508 goto pool_props_bad
;
1510 (void) nvlist_lookup_nvlist(props
, ZPOOL_ROOTFS_PROPS
, &nvl
);
1512 error
= nvlist_dup(nvl
, &rootprops
, KM_SLEEP
);
1514 nvlist_free(config
);
1518 (void) nvlist_remove_all(props
, ZPOOL_ROOTFS_PROPS
);
1520 VERIFY(nvlist_alloc(&zplprops
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
1521 error
= zfs_fill_zplprops_root(version
, rootprops
,
1524 goto pool_props_bad
;
1527 error
= spa_create(zc
->zc_name
, config
, props
, zplprops
);
1530 * Set the remaining root properties
1532 if (!error
&& (error
= zfs_set_prop_nvlist(zc
->zc_name
,
1533 ZPROP_SRC_LOCAL
, rootprops
, NULL
)) != 0)
1534 (void) spa_destroy(zc
->zc_name
);
1537 nvlist_free(rootprops
);
1538 nvlist_free(zplprops
);
1539 nvlist_free(config
);
1546 zfs_ioc_pool_destroy(zfs_cmd_t
*zc
)
1549 zfs_log_history(zc
);
1550 error
= spa_destroy(zc
->zc_name
);
1552 zvol_remove_minors(zc
->zc_name
);
1557 zfs_ioc_pool_import(zfs_cmd_t
*zc
)
1559 nvlist_t
*config
, *props
= NULL
;
1563 if ((error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1564 zc
->zc_iflags
, &config
)) != 0)
1567 if (zc
->zc_nvlist_src_size
!= 0 && (error
=
1568 get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
1569 zc
->zc_iflags
, &props
))) {
1570 nvlist_free(config
);
1574 if (nvlist_lookup_uint64(config
, ZPOOL_CONFIG_POOL_GUID
, &guid
) != 0 ||
1575 guid
!= zc
->zc_guid
)
1576 error
= SET_ERROR(EINVAL
);
1578 error
= spa_import(zc
->zc_name
, config
, props
, zc
->zc_cookie
);
1580 if (zc
->zc_nvlist_dst
!= 0) {
1583 if ((err
= put_nvlist(zc
, config
)) != 0)
1587 nvlist_free(config
);
1596 zfs_ioc_pool_export(zfs_cmd_t
*zc
)
1599 boolean_t force
= (boolean_t
)zc
->zc_cookie
;
1600 boolean_t hardforce
= (boolean_t
)zc
->zc_guid
;
1602 zfs_log_history(zc
);
1603 error
= spa_export(zc
->zc_name
, NULL
, force
, hardforce
);
1605 zvol_remove_minors(zc
->zc_name
);
1610 zfs_ioc_pool_configs(zfs_cmd_t
*zc
)
1615 if ((configs
= spa_all_configs(&zc
->zc_cookie
)) == NULL
)
1616 return (SET_ERROR(EEXIST
));
1618 error
= put_nvlist(zc
, configs
);
1620 nvlist_free(configs
);
1627 * zc_name name of the pool
1630 * zc_cookie real errno
1631 * zc_nvlist_dst config nvlist
1632 * zc_nvlist_dst_size size of config nvlist
1635 zfs_ioc_pool_stats(zfs_cmd_t
*zc
)
1641 error
= spa_get_stats(zc
->zc_name
, &config
, zc
->zc_value
,
1642 sizeof (zc
->zc_value
));
1644 if (config
!= NULL
) {
1645 ret
= put_nvlist(zc
, config
);
1646 nvlist_free(config
);
1649 * The config may be present even if 'error' is non-zero.
1650 * In this case we return success, and preserve the real errno
1653 zc
->zc_cookie
= error
;
1662 * Try to import the given pool, returning pool stats as appropriate so that
1663 * user land knows which devices are available and overall pool health.
1666 zfs_ioc_pool_tryimport(zfs_cmd_t
*zc
)
1668 nvlist_t
*tryconfig
, *config
;
1671 if ((error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1672 zc
->zc_iflags
, &tryconfig
)) != 0)
1675 config
= spa_tryimport(tryconfig
);
1677 nvlist_free(tryconfig
);
1680 return (SET_ERROR(EINVAL
));
1682 error
= put_nvlist(zc
, config
);
1683 nvlist_free(config
);
1690 * zc_name name of the pool
1691 * zc_cookie scan func (pool_scan_func_t)
1694 zfs_ioc_pool_scan(zfs_cmd_t
*zc
)
1699 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1702 if (zc
->zc_cookie
== POOL_SCAN_NONE
)
1703 error
= spa_scan_stop(spa
);
1705 error
= spa_scan(spa
, zc
->zc_cookie
);
1707 spa_close(spa
, FTAG
);
1713 zfs_ioc_pool_freeze(zfs_cmd_t
*zc
)
1718 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
1721 spa_close(spa
, FTAG
);
1727 zfs_ioc_pool_upgrade(zfs_cmd_t
*zc
)
1732 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1735 if (zc
->zc_cookie
< spa_version(spa
) ||
1736 !SPA_VERSION_IS_SUPPORTED(zc
->zc_cookie
)) {
1737 spa_close(spa
, FTAG
);
1738 return (SET_ERROR(EINVAL
));
1741 spa_upgrade(spa
, zc
->zc_cookie
);
1742 spa_close(spa
, FTAG
);
1748 zfs_ioc_pool_get_history(zfs_cmd_t
*zc
)
1755 if ((size
= zc
->zc_history_len
) == 0)
1756 return (SET_ERROR(EINVAL
));
1758 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1761 if (spa_version(spa
) < SPA_VERSION_ZPOOL_HISTORY
) {
1762 spa_close(spa
, FTAG
);
1763 return (SET_ERROR(ENOTSUP
));
1766 hist_buf
= vmem_alloc(size
, KM_SLEEP
);
1767 if ((error
= spa_history_get(spa
, &zc
->zc_history_offset
,
1768 &zc
->zc_history_len
, hist_buf
)) == 0) {
1769 error
= ddi_copyout(hist_buf
,
1770 (void *)(uintptr_t)zc
->zc_history
,
1771 zc
->zc_history_len
, zc
->zc_iflags
);
1774 spa_close(spa
, FTAG
);
1775 vmem_free(hist_buf
, size
);
1780 zfs_ioc_pool_reguid(zfs_cmd_t
*zc
)
1785 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
1787 error
= spa_change_guid(spa
);
1788 spa_close(spa
, FTAG
);
1794 zfs_ioc_dsobj_to_dsname(zfs_cmd_t
*zc
)
1796 return (dsl_dsobj_to_dsname(zc
->zc_name
, zc
->zc_obj
, zc
->zc_value
));
1801 * zc_name name of filesystem
1802 * zc_obj object to find
1805 * zc_value name of object
1808 zfs_ioc_obj_to_path(zfs_cmd_t
*zc
)
1813 /* XXX reading from objset not owned */
1814 if ((error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
)) != 0)
1816 if (dmu_objset_type(os
) != DMU_OST_ZFS
) {
1817 dmu_objset_rele(os
, FTAG
);
1818 return (SET_ERROR(EINVAL
));
1820 error
= zfs_obj_to_path(os
, zc
->zc_obj
, zc
->zc_value
,
1821 sizeof (zc
->zc_value
));
1822 dmu_objset_rele(os
, FTAG
);
1829 * zc_name name of filesystem
1830 * zc_obj object to find
1833 * zc_stat stats on object
1834 * zc_value path to object
1837 zfs_ioc_obj_to_stats(zfs_cmd_t
*zc
)
1842 /* XXX reading from objset not owned */
1843 if ((error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
)) != 0)
1845 if (dmu_objset_type(os
) != DMU_OST_ZFS
) {
1846 dmu_objset_rele(os
, FTAG
);
1847 return (SET_ERROR(EINVAL
));
1849 error
= zfs_obj_to_stats(os
, zc
->zc_obj
, &zc
->zc_stat
, zc
->zc_value
,
1850 sizeof (zc
->zc_value
));
1851 dmu_objset_rele(os
, FTAG
);
1857 zfs_ioc_vdev_add(zfs_cmd_t
*zc
)
1863 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
1867 error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1868 zc
->zc_iflags
, &config
);
1870 error
= spa_vdev_add(spa
, config
);
1871 nvlist_free(config
);
1873 spa_close(spa
, FTAG
);
1879 * zc_name name of the pool
1880 * zc_nvlist_conf nvlist of devices to remove
1881 * zc_cookie to stop the remove?
1884 zfs_ioc_vdev_remove(zfs_cmd_t
*zc
)
1889 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
1892 error
= spa_vdev_remove(spa
, zc
->zc_guid
, B_FALSE
);
1893 spa_close(spa
, FTAG
);
1898 zfs_ioc_vdev_set_state(zfs_cmd_t
*zc
)
1902 vdev_state_t newstate
= VDEV_STATE_UNKNOWN
;
1904 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1906 switch (zc
->zc_cookie
) {
1907 case VDEV_STATE_ONLINE
:
1908 error
= vdev_online(spa
, zc
->zc_guid
, zc
->zc_obj
, &newstate
);
1911 case VDEV_STATE_OFFLINE
:
1912 error
= vdev_offline(spa
, zc
->zc_guid
, zc
->zc_obj
);
1915 case VDEV_STATE_FAULTED
:
1916 if (zc
->zc_obj
!= VDEV_AUX_ERR_EXCEEDED
&&
1917 zc
->zc_obj
!= VDEV_AUX_EXTERNAL
)
1918 zc
->zc_obj
= VDEV_AUX_ERR_EXCEEDED
;
1920 error
= vdev_fault(spa
, zc
->zc_guid
, zc
->zc_obj
);
1923 case VDEV_STATE_DEGRADED
:
1924 if (zc
->zc_obj
!= VDEV_AUX_ERR_EXCEEDED
&&
1925 zc
->zc_obj
!= VDEV_AUX_EXTERNAL
)
1926 zc
->zc_obj
= VDEV_AUX_ERR_EXCEEDED
;
1928 error
= vdev_degrade(spa
, zc
->zc_guid
, zc
->zc_obj
);
1932 error
= SET_ERROR(EINVAL
);
1934 zc
->zc_cookie
= newstate
;
1935 spa_close(spa
, FTAG
);
1940 zfs_ioc_vdev_attach(zfs_cmd_t
*zc
)
1943 int replacing
= zc
->zc_cookie
;
1947 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1950 if ((error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1951 zc
->zc_iflags
, &config
)) == 0) {
1952 error
= spa_vdev_attach(spa
, zc
->zc_guid
, config
, replacing
);
1953 nvlist_free(config
);
1956 spa_close(spa
, FTAG
);
1961 zfs_ioc_vdev_detach(zfs_cmd_t
*zc
)
1966 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1969 error
= spa_vdev_detach(spa
, zc
->zc_guid
, 0, B_FALSE
);
1971 spa_close(spa
, FTAG
);
1976 zfs_ioc_vdev_split(zfs_cmd_t
*zc
)
1979 nvlist_t
*config
, *props
= NULL
;
1981 boolean_t exp
= !!(zc
->zc_cookie
& ZPOOL_EXPORT_AFTER_SPLIT
);
1983 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1986 if ((error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1987 zc
->zc_iflags
, &config
))) {
1988 spa_close(spa
, FTAG
);
1992 if (zc
->zc_nvlist_src_size
!= 0 && (error
=
1993 get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
1994 zc
->zc_iflags
, &props
))) {
1995 spa_close(spa
, FTAG
);
1996 nvlist_free(config
);
2000 error
= spa_vdev_split_mirror(spa
, zc
->zc_string
, config
, props
, exp
);
2002 spa_close(spa
, FTAG
);
2004 nvlist_free(config
);
2011 zfs_ioc_vdev_setpath(zfs_cmd_t
*zc
)
2014 char *path
= zc
->zc_value
;
2015 uint64_t guid
= zc
->zc_guid
;
2018 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
2022 error
= spa_vdev_setpath(spa
, guid
, path
);
2023 spa_close(spa
, FTAG
);
2028 zfs_ioc_vdev_setfru(zfs_cmd_t
*zc
)
2031 char *fru
= zc
->zc_value
;
2032 uint64_t guid
= zc
->zc_guid
;
2035 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
2039 error
= spa_vdev_setfru(spa
, guid
, fru
);
2040 spa_close(spa
, FTAG
);
2045 zfs_ioc_objset_stats_impl(zfs_cmd_t
*zc
, objset_t
*os
)
2050 dmu_objset_fast_stat(os
, &zc
->zc_objset_stats
);
2052 if (zc
->zc_nvlist_dst
!= 0 &&
2053 (error
= dsl_prop_get_all(os
, &nv
)) == 0) {
2054 dmu_objset_stats(os
, nv
);
2056 * NB: zvol_get_stats() will read the objset contents,
2057 * which we aren't supposed to do with a
2058 * DS_MODE_USER hold, because it could be
2059 * inconsistent. So this is a bit of a workaround...
2060 * XXX reading with out owning
2062 if (!zc
->zc_objset_stats
.dds_inconsistent
&&
2063 dmu_objset_type(os
) == DMU_OST_ZVOL
) {
2064 error
= zvol_get_stats(os
, nv
);
2070 error
= put_nvlist(zc
, nv
);
2079 * zc_name name of filesystem
2080 * zc_nvlist_dst_size size of buffer for property nvlist
2083 * zc_objset_stats stats
2084 * zc_nvlist_dst property nvlist
2085 * zc_nvlist_dst_size size of property nvlist
2088 zfs_ioc_objset_stats(zfs_cmd_t
*zc
)
2093 error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
);
2095 error
= zfs_ioc_objset_stats_impl(zc
, os
);
2096 dmu_objset_rele(os
, FTAG
);
2104 * zc_name name of filesystem
2105 * zc_nvlist_dst_size size of buffer for property nvlist
2108 * zc_nvlist_dst received property nvlist
2109 * zc_nvlist_dst_size size of received property nvlist
2111 * Gets received properties (distinct from local properties on or after
2112 * SPA_VERSION_RECVD_PROPS) for callers who want to differentiate received from
2113 * local property values.
2116 zfs_ioc_objset_recvd_props(zfs_cmd_t
*zc
)
2122 * Without this check, we would return local property values if the
2123 * caller has not already received properties on or after
2124 * SPA_VERSION_RECVD_PROPS.
2126 if (!dsl_prop_get_hasrecvd(zc
->zc_name
))
2127 return (SET_ERROR(ENOTSUP
));
2129 if (zc
->zc_nvlist_dst
!= 0 &&
2130 (error
= dsl_prop_get_received(zc
->zc_name
, &nv
)) == 0) {
2131 error
= put_nvlist(zc
, nv
);
2139 nvl_add_zplprop(objset_t
*os
, nvlist_t
*props
, zfs_prop_t prop
)
2145 * zfs_get_zplprop() will either find a value or give us
2146 * the default value (if there is one).
2148 if ((error
= zfs_get_zplprop(os
, prop
, &value
)) != 0)
2150 VERIFY(nvlist_add_uint64(props
, zfs_prop_to_name(prop
), value
) == 0);
2156 * zc_name name of filesystem
2157 * zc_nvlist_dst_size size of buffer for zpl property nvlist
2160 * zc_nvlist_dst zpl property nvlist
2161 * zc_nvlist_dst_size size of zpl property nvlist
2164 zfs_ioc_objset_zplprops(zfs_cmd_t
*zc
)
2169 /* XXX reading without owning */
2170 if ((err
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
)))
2173 dmu_objset_fast_stat(os
, &zc
->zc_objset_stats
);
2176 * NB: nvl_add_zplprop() will read the objset contents,
2177 * which we aren't supposed to do with a DS_MODE_USER
2178 * hold, because it could be inconsistent.
2180 if (zc
->zc_nvlist_dst
!= 0 &&
2181 !zc
->zc_objset_stats
.dds_inconsistent
&&
2182 dmu_objset_type(os
) == DMU_OST_ZFS
) {
2185 VERIFY(nvlist_alloc(&nv
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
2186 if ((err
= nvl_add_zplprop(os
, nv
, ZFS_PROP_VERSION
)) == 0 &&
2187 (err
= nvl_add_zplprop(os
, nv
, ZFS_PROP_NORMALIZE
)) == 0 &&
2188 (err
= nvl_add_zplprop(os
, nv
, ZFS_PROP_UTF8ONLY
)) == 0 &&
2189 (err
= nvl_add_zplprop(os
, nv
, ZFS_PROP_CASE
)) == 0)
2190 err
= put_nvlist(zc
, nv
);
2193 err
= SET_ERROR(ENOENT
);
2195 dmu_objset_rele(os
, FTAG
);
2200 dataset_name_hidden(const char *name
)
2203 * Skip over datasets that are not visible in this zone,
2204 * internal datasets (which have a $ in their name), and
2205 * temporary datasets (which have a % in their name).
2207 if (strchr(name
, '$') != NULL
)
2209 if (strchr(name
, '%') != NULL
)
2211 if (!INGLOBALZONE(curproc
) && !zone_dataset_visible(name
, NULL
))
2218 * zc_name name of filesystem
2219 * zc_cookie zap cursor
2220 * zc_nvlist_dst_size size of buffer for property nvlist
2223 * zc_name name of next filesystem
2224 * zc_cookie zap cursor
2225 * zc_objset_stats stats
2226 * zc_nvlist_dst property nvlist
2227 * zc_nvlist_dst_size size of property nvlist
2230 zfs_ioc_dataset_list_next(zfs_cmd_t
*zc
)
2235 size_t orig_len
= strlen(zc
->zc_name
);
2238 if ((error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
))) {
2239 if (error
== ENOENT
)
2240 error
= SET_ERROR(ESRCH
);
2244 p
= strrchr(zc
->zc_name
, '/');
2245 if (p
== NULL
|| p
[1] != '\0')
2246 (void) strlcat(zc
->zc_name
, "/", sizeof (zc
->zc_name
));
2247 p
= zc
->zc_name
+ strlen(zc
->zc_name
);
2250 error
= dmu_dir_list_next(os
,
2251 sizeof (zc
->zc_name
) - (p
- zc
->zc_name
), p
,
2252 NULL
, &zc
->zc_cookie
);
2253 if (error
== ENOENT
)
2254 error
= SET_ERROR(ESRCH
);
2255 } while (error
== 0 && dataset_name_hidden(zc
->zc_name
));
2256 dmu_objset_rele(os
, FTAG
);
2259 * If it's an internal dataset (ie. with a '$' in its name),
2260 * don't try to get stats for it, otherwise we'll return ENOENT.
2262 if (error
== 0 && strchr(zc
->zc_name
, '$') == NULL
) {
2263 error
= zfs_ioc_objset_stats(zc
); /* fill in the stats */
2264 if (error
== ENOENT
) {
2265 /* We lost a race with destroy, get the next one. */
2266 zc
->zc_name
[orig_len
] = '\0';
2275 * zc_name name of filesystem
2276 * zc_cookie zap cursor
2277 * zc_nvlist_dst_size size of buffer for property nvlist
2280 * zc_name name of next snapshot
2281 * zc_objset_stats stats
2282 * zc_nvlist_dst property nvlist
2283 * zc_nvlist_dst_size size of property nvlist
2286 zfs_ioc_snapshot_list_next(zfs_cmd_t
*zc
)
2291 error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
);
2293 return (error
== ENOENT
? ESRCH
: error
);
2297 * A dataset name of maximum length cannot have any snapshots,
2298 * so exit immediately.
2300 if (strlcat(zc
->zc_name
, "@", sizeof (zc
->zc_name
)) >= MAXNAMELEN
) {
2301 dmu_objset_rele(os
, FTAG
);
2302 return (SET_ERROR(ESRCH
));
2305 error
= dmu_snapshot_list_next(os
,
2306 sizeof (zc
->zc_name
) - strlen(zc
->zc_name
),
2307 zc
->zc_name
+ strlen(zc
->zc_name
), &zc
->zc_obj
, &zc
->zc_cookie
,
2310 if (error
== 0 && !zc
->zc_simple
) {
2312 dsl_pool_t
*dp
= os
->os_dsl_dataset
->ds_dir
->dd_pool
;
2314 error
= dsl_dataset_hold_obj(dp
, zc
->zc_obj
, FTAG
, &ds
);
2318 error
= dmu_objset_from_ds(ds
, &ossnap
);
2320 error
= zfs_ioc_objset_stats_impl(zc
, ossnap
);
2321 dsl_dataset_rele(ds
, FTAG
);
2323 } else if (error
== ENOENT
) {
2324 error
= SET_ERROR(ESRCH
);
2327 dmu_objset_rele(os
, FTAG
);
2328 /* if we failed, undo the @ that we tacked on to zc_name */
2330 *strchr(zc
->zc_name
, '@') = '\0';
2335 zfs_prop_set_userquota(const char *dsname
, nvpair_t
*pair
)
2337 const char *propname
= nvpair_name(pair
);
2339 unsigned int vallen
;
2342 zfs_userquota_prop_t type
;
2348 if (nvpair_type(pair
) == DATA_TYPE_NVLIST
) {
2350 VERIFY(nvpair_value_nvlist(pair
, &attrs
) == 0);
2351 if (nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
2353 return (SET_ERROR(EINVAL
));
2357 * A correctly constructed propname is encoded as
2358 * userquota@<rid>-<domain>.
2360 if ((dash
= strchr(propname
, '-')) == NULL
||
2361 nvpair_value_uint64_array(pair
, &valary
, &vallen
) != 0 ||
2363 return (SET_ERROR(EINVAL
));
2370 err
= zfs_sb_hold(dsname
, FTAG
, &zsb
, B_FALSE
);
2372 err
= zfs_set_userquota(zsb
, type
, domain
, rid
, quota
);
2373 zfs_sb_rele(zsb
, FTAG
);
2380 * If the named property is one that has a special function to set its value,
2381 * return 0 on success and a positive error code on failure; otherwise if it is
2382 * not one of the special properties handled by this function, return -1.
2384 * XXX: It would be better for callers of the property interface if we handled
2385 * these special cases in dsl_prop.c (in the dsl layer).
2388 zfs_prop_set_special(const char *dsname
, zprop_source_t source
,
2391 const char *propname
= nvpair_name(pair
);
2392 zfs_prop_t prop
= zfs_name_to_prop(propname
);
2396 if (prop
== ZPROP_INVAL
) {
2397 if (zfs_prop_userquota(propname
))
2398 return (zfs_prop_set_userquota(dsname
, pair
));
2402 if (nvpair_type(pair
) == DATA_TYPE_NVLIST
) {
2404 VERIFY(nvpair_value_nvlist(pair
, &attrs
) == 0);
2405 VERIFY(nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
2409 if (zfs_prop_get_type(prop
) == PROP_TYPE_STRING
)
2412 VERIFY(0 == nvpair_value_uint64(pair
, &intval
));
2415 case ZFS_PROP_QUOTA
:
2416 err
= dsl_dir_set_quota(dsname
, source
, intval
);
2418 case ZFS_PROP_REFQUOTA
:
2419 err
= dsl_dataset_set_refquota(dsname
, source
, intval
);
2421 case ZFS_PROP_RESERVATION
:
2422 err
= dsl_dir_set_reservation(dsname
, source
, intval
);
2424 case ZFS_PROP_REFRESERVATION
:
2425 err
= dsl_dataset_set_refreservation(dsname
, source
, intval
);
2427 case ZFS_PROP_VOLSIZE
:
2428 err
= zvol_set_volsize(dsname
, intval
);
2430 case ZFS_PROP_SNAPDEV
:
2431 err
= zvol_set_snapdev(dsname
, intval
);
2433 case ZFS_PROP_VERSION
:
2437 if ((err
= zfs_sb_hold(dsname
, FTAG
, &zsb
, B_TRUE
)) != 0)
2440 err
= zfs_set_version(zsb
, intval
);
2441 zfs_sb_rele(zsb
, FTAG
);
2443 if (err
== 0 && intval
>= ZPL_VERSION_USERSPACE
) {
2446 zc
= kmem_zalloc(sizeof (zfs_cmd_t
), KM_SLEEP
);
2447 (void) strcpy(zc
->zc_name
, dsname
);
2448 (void) zfs_ioc_userspace_upgrade(zc
);
2449 kmem_free(zc
, sizeof (zfs_cmd_t
));
2461 * This function is best effort. If it fails to set any of the given properties,
2462 * it continues to set as many as it can and returns the last error
2463 * encountered. If the caller provides a non-NULL errlist, it will be filled in
2464 * with the list of names of all the properties that failed along with the
2465 * corresponding error numbers.
2467 * If every property is set successfully, zero is returned and errlist is not
2471 zfs_set_prop_nvlist(const char *dsname
, zprop_source_t source
, nvlist_t
*nvl
,
2480 nvlist_t
*genericnvl
= fnvlist_alloc();
2481 nvlist_t
*retrynvl
= fnvlist_alloc();
2484 while ((pair
= nvlist_next_nvpair(nvl
, pair
)) != NULL
) {
2485 const char *propname
= nvpair_name(pair
);
2486 zfs_prop_t prop
= zfs_name_to_prop(propname
);
2489 /* decode the property value */
2491 if (nvpair_type(pair
) == DATA_TYPE_NVLIST
) {
2493 attrs
= fnvpair_value_nvlist(pair
);
2494 if (nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
2496 err
= SET_ERROR(EINVAL
);
2499 /* Validate value type */
2500 if (err
== 0 && prop
== ZPROP_INVAL
) {
2501 if (zfs_prop_user(propname
)) {
2502 if (nvpair_type(propval
) != DATA_TYPE_STRING
)
2503 err
= SET_ERROR(EINVAL
);
2504 } else if (zfs_prop_userquota(propname
)) {
2505 if (nvpair_type(propval
) !=
2506 DATA_TYPE_UINT64_ARRAY
)
2507 err
= SET_ERROR(EINVAL
);
2509 err
= SET_ERROR(EINVAL
);
2511 } else if (err
== 0) {
2512 if (nvpair_type(propval
) == DATA_TYPE_STRING
) {
2513 if (zfs_prop_get_type(prop
) != PROP_TYPE_STRING
)
2514 err
= SET_ERROR(EINVAL
);
2515 } else if (nvpair_type(propval
) == DATA_TYPE_UINT64
) {
2518 intval
= fnvpair_value_uint64(propval
);
2520 switch (zfs_prop_get_type(prop
)) {
2521 case PROP_TYPE_NUMBER
:
2523 case PROP_TYPE_STRING
:
2524 err
= SET_ERROR(EINVAL
);
2526 case PROP_TYPE_INDEX
:
2527 if (zfs_prop_index_to_string(prop
,
2528 intval
, &unused
) != 0)
2529 err
= SET_ERROR(EINVAL
);
2533 "unknown property type");
2536 err
= SET_ERROR(EINVAL
);
2540 /* Validate permissions */
2542 err
= zfs_check_settable(dsname
, pair
, CRED());
2545 err
= zfs_prop_set_special(dsname
, source
, pair
);
2548 * For better performance we build up a list of
2549 * properties to set in a single transaction.
2551 err
= nvlist_add_nvpair(genericnvl
, pair
);
2552 } else if (err
!= 0 && nvl
!= retrynvl
) {
2554 * This may be a spurious error caused by
2555 * receiving quota and reservation out of order.
2556 * Try again in a second pass.
2558 err
= nvlist_add_nvpair(retrynvl
, pair
);
2563 if (errlist
!= NULL
)
2564 fnvlist_add_int32(errlist
, propname
, err
);
2569 if (nvl
!= retrynvl
&& !nvlist_empty(retrynvl
)) {
2574 if (!nvlist_empty(genericnvl
) &&
2575 dsl_props_set(dsname
, source
, genericnvl
) != 0) {
2577 * If this fails, we still want to set as many properties as we
2578 * can, so try setting them individually.
2581 while ((pair
= nvlist_next_nvpair(genericnvl
, pair
)) != NULL
) {
2582 const char *propname
= nvpair_name(pair
);
2586 if (nvpair_type(pair
) == DATA_TYPE_NVLIST
) {
2588 attrs
= fnvpair_value_nvlist(pair
);
2589 propval
= fnvlist_lookup_nvpair(attrs
,
2593 if (nvpair_type(propval
) == DATA_TYPE_STRING
) {
2594 strval
= fnvpair_value_string(propval
);
2595 err
= dsl_prop_set_string(dsname
, propname
,
2598 intval
= fnvpair_value_uint64(propval
);
2599 err
= dsl_prop_set_int(dsname
, propname
, source
,
2604 if (errlist
!= NULL
) {
2605 fnvlist_add_int32(errlist
, propname
,
2612 nvlist_free(genericnvl
);
2613 nvlist_free(retrynvl
);
2619 * Check that all the properties are valid user properties.
2622 zfs_check_userprops(const char *fsname
, nvlist_t
*nvl
)
2624 nvpair_t
*pair
= NULL
;
2627 while ((pair
= nvlist_next_nvpair(nvl
, pair
)) != NULL
) {
2628 const char *propname
= nvpair_name(pair
);
2630 if (!zfs_prop_user(propname
) ||
2631 nvpair_type(pair
) != DATA_TYPE_STRING
)
2632 return (SET_ERROR(EINVAL
));
2634 if ((error
= zfs_secpolicy_write_perms(fsname
,
2635 ZFS_DELEG_PERM_USERPROP
, CRED())))
2638 if (strlen(propname
) >= ZAP_MAXNAMELEN
)
2639 return (SET_ERROR(ENAMETOOLONG
));
2641 if (strlen(fnvpair_value_string(pair
)) >= ZAP_MAXVALUELEN
)
2642 return (SET_ERROR(E2BIG
));
2648 props_skip(nvlist_t
*props
, nvlist_t
*skipped
, nvlist_t
**newprops
)
2652 VERIFY(nvlist_alloc(newprops
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
2655 while ((pair
= nvlist_next_nvpair(props
, pair
)) != NULL
) {
2656 if (nvlist_exists(skipped
, nvpair_name(pair
)))
2659 VERIFY(nvlist_add_nvpair(*newprops
, pair
) == 0);
2664 clear_received_props(const char *dsname
, nvlist_t
*props
,
2668 nvlist_t
*cleared_props
= NULL
;
2669 props_skip(props
, skipped
, &cleared_props
);
2670 if (!nvlist_empty(cleared_props
)) {
2672 * Acts on local properties until the dataset has received
2673 * properties at least once on or after SPA_VERSION_RECVD_PROPS.
2675 zprop_source_t flags
= (ZPROP_SRC_NONE
|
2676 (dsl_prop_get_hasrecvd(dsname
) ? ZPROP_SRC_RECEIVED
: 0));
2677 err
= zfs_set_prop_nvlist(dsname
, flags
, cleared_props
, NULL
);
2679 nvlist_free(cleared_props
);
2685 * zc_name name of filesystem
2686 * zc_value name of property to set
2687 * zc_nvlist_src{_size} nvlist of properties to apply
2688 * zc_cookie received properties flag
2691 * zc_nvlist_dst{_size} error for each unapplied received property
2694 zfs_ioc_set_prop(zfs_cmd_t
*zc
)
2697 boolean_t received
= zc
->zc_cookie
;
2698 zprop_source_t source
= (received
? ZPROP_SRC_RECEIVED
:
2703 if ((error
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
2704 zc
->zc_iflags
, &nvl
)) != 0)
2708 nvlist_t
*origprops
;
2710 if (dsl_prop_get_received(zc
->zc_name
, &origprops
) == 0) {
2711 (void) clear_received_props(zc
->zc_name
,
2713 nvlist_free(origprops
);
2716 error
= dsl_prop_set_hasrecvd(zc
->zc_name
);
2719 errors
= fnvlist_alloc();
2721 error
= zfs_set_prop_nvlist(zc
->zc_name
, source
, nvl
, errors
);
2723 if (zc
->zc_nvlist_dst
!= 0 && errors
!= NULL
) {
2724 (void) put_nvlist(zc
, errors
);
2727 nvlist_free(errors
);
2734 * zc_name name of filesystem
2735 * zc_value name of property to inherit
2736 * zc_cookie revert to received value if TRUE
2741 zfs_ioc_inherit_prop(zfs_cmd_t
*zc
)
2743 const char *propname
= zc
->zc_value
;
2744 zfs_prop_t prop
= zfs_name_to_prop(propname
);
2745 boolean_t received
= zc
->zc_cookie
;
2746 zprop_source_t source
= (received
2747 ? ZPROP_SRC_NONE
/* revert to received value, if any */
2748 : ZPROP_SRC_INHERITED
); /* explicitly inherit */
2757 * zfs_prop_set_special() expects properties in the form of an
2758 * nvpair with type info.
2760 if (prop
== ZPROP_INVAL
) {
2761 if (!zfs_prop_user(propname
))
2762 return (SET_ERROR(EINVAL
));
2764 type
= PROP_TYPE_STRING
;
2765 } else if (prop
== ZFS_PROP_VOLSIZE
||
2766 prop
== ZFS_PROP_VERSION
) {
2767 return (SET_ERROR(EINVAL
));
2769 type
= zfs_prop_get_type(prop
);
2772 VERIFY(nvlist_alloc(&dummy
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
2775 case PROP_TYPE_STRING
:
2776 VERIFY(0 == nvlist_add_string(dummy
, propname
, ""));
2778 case PROP_TYPE_NUMBER
:
2779 case PROP_TYPE_INDEX
:
2780 VERIFY(0 == nvlist_add_uint64(dummy
, propname
, 0));
2784 return (SET_ERROR(EINVAL
));
2787 pair
= nvlist_next_nvpair(dummy
, NULL
);
2788 err
= zfs_prop_set_special(zc
->zc_name
, source
, pair
);
2791 return (err
); /* special property already handled */
2794 * Only check this in the non-received case. We want to allow
2795 * 'inherit -S' to revert non-inheritable properties like quota
2796 * and reservation to the received or default values even though
2797 * they are not considered inheritable.
2799 if (prop
!= ZPROP_INVAL
&& !zfs_prop_inheritable(prop
))
2800 return (SET_ERROR(EINVAL
));
2803 /* property name has been validated by zfs_secpolicy_inherit_prop() */
2804 return (dsl_prop_inherit(zc
->zc_name
, zc
->zc_value
, source
));
2808 zfs_ioc_pool_set_props(zfs_cmd_t
*zc
)
2815 if ((error
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
2816 zc
->zc_iflags
, &props
)))
2820 * If the only property is the configfile, then just do a spa_lookup()
2821 * to handle the faulted case.
2823 pair
= nvlist_next_nvpair(props
, NULL
);
2824 if (pair
!= NULL
&& strcmp(nvpair_name(pair
),
2825 zpool_prop_to_name(ZPOOL_PROP_CACHEFILE
)) == 0 &&
2826 nvlist_next_nvpair(props
, pair
) == NULL
) {
2827 mutex_enter(&spa_namespace_lock
);
2828 if ((spa
= spa_lookup(zc
->zc_name
)) != NULL
) {
2829 spa_configfile_set(spa
, props
, B_FALSE
);
2830 spa_config_sync(spa
, B_FALSE
, B_TRUE
);
2832 mutex_exit(&spa_namespace_lock
);
2839 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0) {
2844 error
= spa_prop_set(spa
, props
);
2847 spa_close(spa
, FTAG
);
2853 zfs_ioc_pool_get_props(zfs_cmd_t
*zc
)
2857 nvlist_t
*nvp
= NULL
;
2859 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0) {
2861 * If the pool is faulted, there may be properties we can still
2862 * get (such as altroot and cachefile), so attempt to get them
2865 mutex_enter(&spa_namespace_lock
);
2866 if ((spa
= spa_lookup(zc
->zc_name
)) != NULL
)
2867 error
= spa_prop_get(spa
, &nvp
);
2868 mutex_exit(&spa_namespace_lock
);
2870 error
= spa_prop_get(spa
, &nvp
);
2871 spa_close(spa
, FTAG
);
2874 if (error
== 0 && zc
->zc_nvlist_dst
!= 0)
2875 error
= put_nvlist(zc
, nvp
);
2877 error
= SET_ERROR(EFAULT
);
2885 * zc_name name of filesystem
2886 * zc_nvlist_src{_size} nvlist of delegated permissions
2887 * zc_perm_action allow/unallow flag
2892 zfs_ioc_set_fsacl(zfs_cmd_t
*zc
)
2895 nvlist_t
*fsaclnv
= NULL
;
2897 if ((error
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
2898 zc
->zc_iflags
, &fsaclnv
)) != 0)
2902 * Verify nvlist is constructed correctly
2904 if ((error
= zfs_deleg_verify_nvlist(fsaclnv
)) != 0) {
2905 nvlist_free(fsaclnv
);
2906 return (SET_ERROR(EINVAL
));
2910 * If we don't have PRIV_SYS_MOUNT, then validate
2911 * that user is allowed to hand out each permission in
2915 error
= secpolicy_zfs(CRED());
2917 if (zc
->zc_perm_action
== B_FALSE
) {
2918 error
= dsl_deleg_can_allow(zc
->zc_name
,
2921 error
= dsl_deleg_can_unallow(zc
->zc_name
,
2927 error
= dsl_deleg_set(zc
->zc_name
, fsaclnv
, zc
->zc_perm_action
);
2929 nvlist_free(fsaclnv
);
2935 * zc_name name of filesystem
2938 * zc_nvlist_src{_size} nvlist of delegated permissions
2941 zfs_ioc_get_fsacl(zfs_cmd_t
*zc
)
2946 if ((error
= dsl_deleg_get(zc
->zc_name
, &nvp
)) == 0) {
2947 error
= put_nvlist(zc
, nvp
);
2956 zfs_create_cb(objset_t
*os
, void *arg
, cred_t
*cr
, dmu_tx_t
*tx
)
2958 zfs_creat_t
*zct
= arg
;
2960 zfs_create_fs(os
, cr
, zct
->zct_zplprops
, tx
);
2963 #define ZFS_PROP_UNDEFINED ((uint64_t)-1)
2967 * os parent objset pointer (NULL if root fs)
2968 * fuids_ok fuids allowed in this version of the spa?
2969 * sa_ok SAs allowed in this version of the spa?
2970 * createprops list of properties requested by creator
2973 * zplprops values for the zplprops we attach to the master node object
2974 * is_ci true if requested file system will be purely case-insensitive
2976 * Determine the settings for utf8only, normalization and
2977 * casesensitivity. Specific values may have been requested by the
2978 * creator and/or we can inherit values from the parent dataset. If
2979 * the file system is of too early a vintage, a creator can not
2980 * request settings for these properties, even if the requested
2981 * setting is the default value. We don't actually want to create dsl
2982 * properties for these, so remove them from the source nvlist after
2986 zfs_fill_zplprops_impl(objset_t
*os
, uint64_t zplver
,
2987 boolean_t fuids_ok
, boolean_t sa_ok
, nvlist_t
*createprops
,
2988 nvlist_t
*zplprops
, boolean_t
*is_ci
)
2990 uint64_t sense
= ZFS_PROP_UNDEFINED
;
2991 uint64_t norm
= ZFS_PROP_UNDEFINED
;
2992 uint64_t u8
= ZFS_PROP_UNDEFINED
;
2995 ASSERT(zplprops
!= NULL
);
2998 * Pull out creator prop choices, if any.
3001 (void) nvlist_lookup_uint64(createprops
,
3002 zfs_prop_to_name(ZFS_PROP_VERSION
), &zplver
);
3003 (void) nvlist_lookup_uint64(createprops
,
3004 zfs_prop_to_name(ZFS_PROP_NORMALIZE
), &norm
);
3005 (void) nvlist_remove_all(createprops
,
3006 zfs_prop_to_name(ZFS_PROP_NORMALIZE
));
3007 (void) nvlist_lookup_uint64(createprops
,
3008 zfs_prop_to_name(ZFS_PROP_UTF8ONLY
), &u8
);
3009 (void) nvlist_remove_all(createprops
,
3010 zfs_prop_to_name(ZFS_PROP_UTF8ONLY
));
3011 (void) nvlist_lookup_uint64(createprops
,
3012 zfs_prop_to_name(ZFS_PROP_CASE
), &sense
);
3013 (void) nvlist_remove_all(createprops
,
3014 zfs_prop_to_name(ZFS_PROP_CASE
));
3018 * If the zpl version requested is whacky or the file system
3019 * or pool is version is too "young" to support normalization
3020 * and the creator tried to set a value for one of the props,
3023 if ((zplver
< ZPL_VERSION_INITIAL
|| zplver
> ZPL_VERSION
) ||
3024 (zplver
>= ZPL_VERSION_FUID
&& !fuids_ok
) ||
3025 (zplver
>= ZPL_VERSION_SA
&& !sa_ok
) ||
3026 (zplver
< ZPL_VERSION_NORMALIZATION
&&
3027 (norm
!= ZFS_PROP_UNDEFINED
|| u8
!= ZFS_PROP_UNDEFINED
||
3028 sense
!= ZFS_PROP_UNDEFINED
)))
3029 return (SET_ERROR(ENOTSUP
));
3032 * Put the version in the zplprops
3034 VERIFY(nvlist_add_uint64(zplprops
,
3035 zfs_prop_to_name(ZFS_PROP_VERSION
), zplver
) == 0);
3037 if (norm
== ZFS_PROP_UNDEFINED
&&
3038 (error
= zfs_get_zplprop(os
, ZFS_PROP_NORMALIZE
, &norm
)) != 0)
3040 VERIFY(nvlist_add_uint64(zplprops
,
3041 zfs_prop_to_name(ZFS_PROP_NORMALIZE
), norm
) == 0);
3044 * If we're normalizing, names must always be valid UTF-8 strings.
3048 if (u8
== ZFS_PROP_UNDEFINED
&&
3049 (error
= zfs_get_zplprop(os
, ZFS_PROP_UTF8ONLY
, &u8
)) != 0)
3051 VERIFY(nvlist_add_uint64(zplprops
,
3052 zfs_prop_to_name(ZFS_PROP_UTF8ONLY
), u8
) == 0);
3054 if (sense
== ZFS_PROP_UNDEFINED
&&
3055 (error
= zfs_get_zplprop(os
, ZFS_PROP_CASE
, &sense
)) != 0)
3057 VERIFY(nvlist_add_uint64(zplprops
,
3058 zfs_prop_to_name(ZFS_PROP_CASE
), sense
) == 0);
3061 *is_ci
= (sense
== ZFS_CASE_INSENSITIVE
);
3067 zfs_fill_zplprops(const char *dataset
, nvlist_t
*createprops
,
3068 nvlist_t
*zplprops
, boolean_t
*is_ci
)
3070 boolean_t fuids_ok
, sa_ok
;
3071 uint64_t zplver
= ZPL_VERSION
;
3072 objset_t
*os
= NULL
;
3073 char parentname
[MAXNAMELEN
];
3079 (void) strlcpy(parentname
, dataset
, sizeof (parentname
));
3080 cp
= strrchr(parentname
, '/');
3084 if ((error
= spa_open(dataset
, &spa
, FTAG
)) != 0)
3087 spa_vers
= spa_version(spa
);
3088 spa_close(spa
, FTAG
);
3090 zplver
= zfs_zpl_version_map(spa_vers
);
3091 fuids_ok
= (zplver
>= ZPL_VERSION_FUID
);
3092 sa_ok
= (zplver
>= ZPL_VERSION_SA
);
3095 * Open parent object set so we can inherit zplprop values.
3097 if ((error
= dmu_objset_hold(parentname
, FTAG
, &os
)) != 0)
3100 error
= zfs_fill_zplprops_impl(os
, zplver
, fuids_ok
, sa_ok
, createprops
,
3102 dmu_objset_rele(os
, FTAG
);
3107 zfs_fill_zplprops_root(uint64_t spa_vers
, nvlist_t
*createprops
,
3108 nvlist_t
*zplprops
, boolean_t
*is_ci
)
3112 uint64_t zplver
= ZPL_VERSION
;
3115 zplver
= zfs_zpl_version_map(spa_vers
);
3116 fuids_ok
= (zplver
>= ZPL_VERSION_FUID
);
3117 sa_ok
= (zplver
>= ZPL_VERSION_SA
);
3119 error
= zfs_fill_zplprops_impl(NULL
, zplver
, fuids_ok
, sa_ok
,
3120 createprops
, zplprops
, is_ci
);
3126 * "type" -> dmu_objset_type_t (int32)
3127 * (optional) "props" -> { prop -> value }
3130 * outnvl: propname -> error code (int32)
3133 zfs_ioc_create(const char *fsname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
3136 zfs_creat_t zct
= { 0 };
3137 nvlist_t
*nvprops
= NULL
;
3138 void (*cbfunc
)(objset_t
*os
, void *arg
, cred_t
*cr
, dmu_tx_t
*tx
);
3140 dmu_objset_type_t type
;
3141 boolean_t is_insensitive
= B_FALSE
;
3143 if (nvlist_lookup_int32(innvl
, "type", &type32
) != 0)
3144 return (SET_ERROR(EINVAL
));
3146 (void) nvlist_lookup_nvlist(innvl
, "props", &nvprops
);
3150 cbfunc
= zfs_create_cb
;
3154 cbfunc
= zvol_create_cb
;
3161 if (strchr(fsname
, '@') ||
3162 strchr(fsname
, '%'))
3163 return (SET_ERROR(EINVAL
));
3165 zct
.zct_props
= nvprops
;
3168 return (SET_ERROR(EINVAL
));
3170 if (type
== DMU_OST_ZVOL
) {
3171 uint64_t volsize
, volblocksize
;
3173 if (nvprops
== NULL
)
3174 return (SET_ERROR(EINVAL
));
3175 if (nvlist_lookup_uint64(nvprops
,
3176 zfs_prop_to_name(ZFS_PROP_VOLSIZE
), &volsize
) != 0)
3177 return (SET_ERROR(EINVAL
));
3179 if ((error
= nvlist_lookup_uint64(nvprops
,
3180 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE
),
3181 &volblocksize
)) != 0 && error
!= ENOENT
)
3182 return (SET_ERROR(EINVAL
));
3185 volblocksize
= zfs_prop_default_numeric(
3186 ZFS_PROP_VOLBLOCKSIZE
);
3188 if ((error
= zvol_check_volblocksize(
3189 volblocksize
)) != 0 ||
3190 (error
= zvol_check_volsize(volsize
,
3191 volblocksize
)) != 0)
3193 } else if (type
== DMU_OST_ZFS
) {
3197 * We have to have normalization and
3198 * case-folding flags correct when we do the
3199 * file system creation, so go figure them out
3202 VERIFY(nvlist_alloc(&zct
.zct_zplprops
,
3203 NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
3204 error
= zfs_fill_zplprops(fsname
, nvprops
,
3205 zct
.zct_zplprops
, &is_insensitive
);
3207 nvlist_free(zct
.zct_zplprops
);
3212 error
= dmu_objset_create(fsname
, type
,
3213 is_insensitive
? DS_FLAG_CI_DATASET
: 0, cbfunc
, &zct
);
3214 nvlist_free(zct
.zct_zplprops
);
3217 * It would be nice to do this atomically.
3220 error
= zfs_set_prop_nvlist(fsname
, ZPROP_SRC_LOCAL
,
3223 (void) dsl_destroy_head(fsname
);
3227 if (error
== 0 && type
== DMU_OST_ZVOL
)
3228 zvol_create_minors(fsname
);
3236 * "origin" -> name of origin snapshot
3237 * (optional) "props" -> { prop -> value }
3241 * outnvl: propname -> error code (int32)
3244 zfs_ioc_clone(const char *fsname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
3247 nvlist_t
*nvprops
= NULL
;
3250 if (nvlist_lookup_string(innvl
, "origin", &origin_name
) != 0)
3251 return (SET_ERROR(EINVAL
));
3252 (void) nvlist_lookup_nvlist(innvl
, "props", &nvprops
);
3254 if (strchr(fsname
, '@') ||
3255 strchr(fsname
, '%'))
3256 return (SET_ERROR(EINVAL
));
3258 if (dataset_namecheck(origin_name
, NULL
, NULL
) != 0)
3259 return (SET_ERROR(EINVAL
));
3260 error
= dmu_objset_clone(fsname
, origin_name
);
3265 * It would be nice to do this atomically.
3268 error
= zfs_set_prop_nvlist(fsname
, ZPROP_SRC_LOCAL
,
3271 (void) dsl_destroy_head(fsname
);
3276 zvol_create_minors(fsname
);
3284 * "snaps" -> { snapshot1, snapshot2 }
3285 * (optional) "props" -> { prop -> value (string) }
3288 * outnvl: snapshot -> error code (int32)
3291 zfs_ioc_snapshot(const char *poolname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
3294 nvlist_t
*props
= NULL
;
3296 nvpair_t
*pair
, *pair2
;
3298 (void) nvlist_lookup_nvlist(innvl
, "props", &props
);
3299 if ((error
= zfs_check_userprops(poolname
, props
)) != 0)
3302 if (!nvlist_empty(props
) &&
3303 zfs_earlier_version(poolname
, SPA_VERSION_SNAP_PROPS
))
3304 return (SET_ERROR(ENOTSUP
));
3306 if (nvlist_lookup_nvlist(innvl
, "snaps", &snaps
) != 0)
3307 return (SET_ERROR(EINVAL
));
3308 poollen
= strlen(poolname
);
3309 for (pair
= nvlist_next_nvpair(snaps
, NULL
); pair
!= NULL
;
3310 pair
= nvlist_next_nvpair(snaps
, pair
)) {
3311 const char *name
= nvpair_name(pair
);
3312 const char *cp
= strchr(name
, '@');
3315 * The snap name must contain an @, and the part after it must
3316 * contain only valid characters.
3319 zfs_component_namecheck(cp
+ 1, NULL
, NULL
) != 0)
3320 return (SET_ERROR(EINVAL
));
3323 * The snap must be in the specified pool.
3325 if (strncmp(name
, poolname
, poollen
) != 0 ||
3326 (name
[poollen
] != '/' && name
[poollen
] != '@'))
3327 return (SET_ERROR(EXDEV
));
3329 /* This must be the only snap of this fs. */
3330 for (pair2
= nvlist_next_nvpair(snaps
, pair
);
3331 pair2
!= NULL
; pair2
= nvlist_next_nvpair(snaps
, pair2
)) {
3332 if (strncmp(name
, nvpair_name(pair2
), cp
- name
+ 1)
3334 return (SET_ERROR(EXDEV
));
3339 error
= dsl_dataset_snapshot(snaps
, props
, outnvl
);
3343 zvol_create_minors(poolname
);
3350 * innvl: "message" -> string
3354 zfs_ioc_log_history(const char *unused
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
3362 * The poolname in the ioctl is not set, we get it from the TSD,
3363 * which was set at the end of the last successful ioctl that allows
3364 * logging. The secpolicy func already checked that it is set.
3365 * Only one log ioctl is allowed after each successful ioctl, so
3366 * we clear the TSD here.
3368 poolname
= tsd_get(zfs_allow_log_key
);
3369 (void) tsd_set(zfs_allow_log_key
, NULL
);
3370 error
= spa_open(poolname
, &spa
, FTAG
);
3375 if (nvlist_lookup_string(innvl
, "message", &message
) != 0) {
3376 spa_close(spa
, FTAG
);
3377 return (SET_ERROR(EINVAL
));
3380 if (spa_version(spa
) < SPA_VERSION_ZPOOL_HISTORY
) {
3381 spa_close(spa
, FTAG
);
3382 return (SET_ERROR(ENOTSUP
));
3385 error
= spa_history_log(spa
, message
);
3386 spa_close(spa
, FTAG
);
3391 * The dp_config_rwlock must not be held when calling this, because the
3392 * unmount may need to write out data.
3394 * This function is best-effort. Callers must deal gracefully if it
3395 * remains mounted (or is remounted after this call).
3397 * XXX: This function should detect a failure to unmount a snapdir of a dataset
3398 * and return the appropriate error code when it is mounted. Its Illumos and
3399 * FreeBSD counterparts do this. We do not do this on Linux because there is no
3400 * clear way to access the mount information that FreeBSD and Illumos use to
3401 * distinguish between things with mounted snapshot directories, and things
3402 * without mounted snapshot directories, which include zvols. Returning a
3403 * failure for the latter causes `zfs destroy` to fail on zvol snapshots.
3406 zfs_unmount_snap(const char *snapname
)
3408 zfs_sb_t
*zsb
= NULL
;
3413 if ((ptr
= strchr(snapname
, '@')) == NULL
)
3416 dsname
= kmem_alloc(ptr
- snapname
+ 1, KM_SLEEP
);
3417 strlcpy(dsname
, snapname
, ptr
- snapname
+ 1);
3418 fullname
= strdup(snapname
);
3420 if (zfs_sb_hold(dsname
, FTAG
, &zsb
, B_FALSE
) == 0) {
3421 ASSERT(!dsl_pool_config_held(dmu_objset_pool(zsb
->z_os
)));
3422 (void) zfsctl_unmount_snapshot(zsb
, fullname
, MNT_FORCE
);
3423 zfs_sb_rele(zsb
, FTAG
);
3426 kmem_free(dsname
, ptr
- snapname
+ 1);
3434 zfs_unmount_snap_cb(const char *snapname
, void *arg
)
3436 return (zfs_unmount_snap(snapname
));
3440 * When a clone is destroyed, its origin may also need to be destroyed,
3441 * in which case it must be unmounted. This routine will do that unmount
3445 zfs_destroy_unmount_origin(const char *fsname
)
3451 error
= dmu_objset_hold(fsname
, FTAG
, &os
);
3454 ds
= dmu_objset_ds(os
);
3455 if (dsl_dir_is_clone(ds
->ds_dir
) && DS_IS_DEFER_DESTROY(ds
->ds_prev
)) {
3456 char originname
[MAXNAMELEN
];
3457 dsl_dataset_name(ds
->ds_prev
, originname
);
3458 dmu_objset_rele(os
, FTAG
);
3459 (void) zfs_unmount_snap(originname
);
3461 dmu_objset_rele(os
, FTAG
);
3467 * "snaps" -> { snapshot1, snapshot2 }
3468 * (optional boolean) "defer"
3471 * outnvl: snapshot -> error code (int32)
3475 zfs_ioc_destroy_snaps(const char *poolname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
3481 if (nvlist_lookup_nvlist(innvl
, "snaps", &snaps
) != 0)
3482 return (SET_ERROR(EINVAL
));
3483 defer
= nvlist_exists(innvl
, "defer");
3485 for (pair
= nvlist_next_nvpair(snaps
, NULL
); pair
!= NULL
;
3486 pair
= nvlist_next_nvpair(snaps
, pair
)) {
3487 (void) zfs_unmount_snap(nvpair_name(pair
));
3488 (void) zvol_remove_minor(nvpair_name(pair
));
3491 return (dsl_destroy_snapshots_nvl(snaps
, defer
, outnvl
));
3495 * Create bookmarks. Bookmark names are of the form <fs>#<bmark>.
3496 * All bookmarks must be in the same pool.
3499 * bookmark1 -> snapshot1, bookmark2 -> snapshot2
3502 * outnvl: bookmark -> error code (int32)
3507 zfs_ioc_bookmark(const char *poolname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
3509 nvpair_t
*pair
, *pair2
;
3511 for (pair
= nvlist_next_nvpair(innvl
, NULL
);
3512 pair
!= NULL
; pair
= nvlist_next_nvpair(innvl
, pair
)) {
3516 * Verify the snapshot argument.
3518 if (nvpair_value_string(pair
, &snap_name
) != 0)
3519 return (SET_ERROR(EINVAL
));
3522 /* Verify that the keys (bookmarks) are unique */
3523 for (pair2
= nvlist_next_nvpair(innvl
, pair
);
3524 pair2
!= NULL
; pair2
= nvlist_next_nvpair(innvl
, pair2
)) {
3525 if (strcmp(nvpair_name(pair
), nvpair_name(pair2
)) == 0)
3526 return (SET_ERROR(EINVAL
));
3530 return (dsl_bookmark_create(innvl
, outnvl
));
3535 * property 1, property 2, ...
3539 * bookmark name 1 -> { property 1, property 2, ... },
3540 * bookmark name 2 -> { property 1, property 2, ... }
3545 zfs_ioc_get_bookmarks(const char *fsname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
3547 return (dsl_get_bookmarks(fsname
, innvl
, outnvl
));
3552 * bookmark name 1, bookmark name 2
3555 * outnvl: bookmark -> error code (int32)
3559 zfs_ioc_destroy_bookmarks(const char *poolname
, nvlist_t
*innvl
,
3565 poollen
= strlen(poolname
);
3566 for (pair
= nvlist_next_nvpair(innvl
, NULL
);
3567 pair
!= NULL
; pair
= nvlist_next_nvpair(innvl
, pair
)) {
3568 const char *name
= nvpair_name(pair
);
3569 const char *cp
= strchr(name
, '#');
3572 * The bookmark name must contain an #, and the part after it
3573 * must contain only valid characters.
3576 zfs_component_namecheck(cp
+ 1, NULL
, NULL
) != 0)
3577 return (SET_ERROR(EINVAL
));
3580 * The bookmark must be in the specified pool.
3582 if (strncmp(name
, poolname
, poollen
) != 0 ||
3583 (name
[poollen
] != '/' && name
[poollen
] != '#'))
3584 return (SET_ERROR(EXDEV
));
3587 error
= dsl_bookmark_destroy(innvl
, outnvl
);
3593 * zc_name name of dataset to destroy
3594 * zc_objset_type type of objset
3595 * zc_defer_destroy mark for deferred destroy
3600 zfs_ioc_destroy(zfs_cmd_t
*zc
)
3604 if (zc
->zc_objset_type
== DMU_OST_ZFS
) {
3605 err
= zfs_unmount_snap(zc
->zc_name
);
3610 if (strchr(zc
->zc_name
, '@'))
3611 err
= dsl_destroy_snapshot(zc
->zc_name
, zc
->zc_defer_destroy
);
3613 err
= dsl_destroy_head(zc
->zc_name
);
3614 if (zc
->zc_objset_type
== DMU_OST_ZVOL
&& err
== 0)
3615 (void) zvol_remove_minor(zc
->zc_name
);
3620 * fsname is name of dataset to rollback (to most recent snapshot)
3622 * innvl is not used.
3624 * outnvl: "target" -> name of most recent snapshot
3629 zfs_ioc_rollback(const char *fsname
, nvlist_t
*args
, nvlist_t
*outnvl
)
3634 if (get_zfs_sb(fsname
, &zsb
) == 0) {
3635 error
= zfs_suspend_fs(zsb
);
3639 error
= dsl_dataset_rollback(fsname
, zsb
, outnvl
);
3640 resume_err
= zfs_resume_fs(zsb
, fsname
);
3641 error
= error
? error
: resume_err
;
3643 deactivate_super(zsb
->z_sb
);
3645 error
= dsl_dataset_rollback(fsname
, NULL
, outnvl
);
3651 recursive_unmount(const char *fsname
, void *arg
)
3653 const char *snapname
= arg
;
3657 fullname
= kmem_asprintf("%s@%s", fsname
, snapname
);
3658 error
= zfs_unmount_snap(fullname
);
3666 * zc_name old name of dataset
3667 * zc_value new name of dataset
3668 * zc_cookie recursive flag (only valid for snapshots)
3673 zfs_ioc_rename(zfs_cmd_t
*zc
)
3675 boolean_t recursive
= zc
->zc_cookie
& 1;
3678 zc
->zc_value
[sizeof (zc
->zc_value
) - 1] = '\0';
3679 if (dataset_namecheck(zc
->zc_value
, NULL
, NULL
) != 0 ||
3680 strchr(zc
->zc_value
, '%'))
3681 return (SET_ERROR(EINVAL
));
3683 at
= strchr(zc
->zc_name
, '@');
3685 /* snaps must be in same fs */
3688 if (strncmp(zc
->zc_name
, zc
->zc_value
, at
- zc
->zc_name
+ 1))
3689 return (SET_ERROR(EXDEV
));
3691 if (zc
->zc_objset_type
== DMU_OST_ZFS
) {
3692 error
= dmu_objset_find(zc
->zc_name
,
3693 recursive_unmount
, at
+ 1,
3694 recursive
? DS_FIND_CHILDREN
: 0);
3700 error
= dsl_dataset_rename_snapshot(zc
->zc_name
,
3701 at
+ 1, strchr(zc
->zc_value
, '@') + 1, recursive
);
3706 return (dsl_dir_rename(zc
->zc_name
, zc
->zc_value
));
3711 zfs_check_settable(const char *dsname
, nvpair_t
*pair
, cred_t
*cr
)
3713 const char *propname
= nvpair_name(pair
);
3714 boolean_t issnap
= (strchr(dsname
, '@') != NULL
);
3715 zfs_prop_t prop
= zfs_name_to_prop(propname
);
3719 if (prop
== ZPROP_INVAL
) {
3720 if (zfs_prop_user(propname
)) {
3721 if ((err
= zfs_secpolicy_write_perms(dsname
,
3722 ZFS_DELEG_PERM_USERPROP
, cr
)))
3727 if (!issnap
&& zfs_prop_userquota(propname
)) {
3728 const char *perm
= NULL
;
3729 const char *uq_prefix
=
3730 zfs_userquota_prop_prefixes
[ZFS_PROP_USERQUOTA
];
3731 const char *gq_prefix
=
3732 zfs_userquota_prop_prefixes
[ZFS_PROP_GROUPQUOTA
];
3734 if (strncmp(propname
, uq_prefix
,
3735 strlen(uq_prefix
)) == 0) {
3736 perm
= ZFS_DELEG_PERM_USERQUOTA
;
3737 } else if (strncmp(propname
, gq_prefix
,
3738 strlen(gq_prefix
)) == 0) {
3739 perm
= ZFS_DELEG_PERM_GROUPQUOTA
;
3741 /* USERUSED and GROUPUSED are read-only */
3742 return (SET_ERROR(EINVAL
));
3745 if ((err
= zfs_secpolicy_write_perms(dsname
, perm
, cr
)))
3750 return (SET_ERROR(EINVAL
));
3754 return (SET_ERROR(EINVAL
));
3756 if (nvpair_type(pair
) == DATA_TYPE_NVLIST
) {
3758 * dsl_prop_get_all_impl() returns properties in this
3762 VERIFY(nvpair_value_nvlist(pair
, &attrs
) == 0);
3763 VERIFY(nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
3768 * Check that this value is valid for this pool version
3771 case ZFS_PROP_COMPRESSION
:
3773 * If the user specified gzip compression, make sure
3774 * the SPA supports it. We ignore any errors here since
3775 * we'll catch them later.
3777 if (nvpair_type(pair
) == DATA_TYPE_UINT64
&&
3778 nvpair_value_uint64(pair
, &intval
) == 0) {
3779 if (intval
>= ZIO_COMPRESS_GZIP_1
&&
3780 intval
<= ZIO_COMPRESS_GZIP_9
&&
3781 zfs_earlier_version(dsname
,
3782 SPA_VERSION_GZIP_COMPRESSION
)) {
3783 return (SET_ERROR(ENOTSUP
));
3786 if (intval
== ZIO_COMPRESS_ZLE
&&
3787 zfs_earlier_version(dsname
,
3788 SPA_VERSION_ZLE_COMPRESSION
))
3789 return (SET_ERROR(ENOTSUP
));
3791 if (intval
== ZIO_COMPRESS_LZ4
) {
3794 if ((err
= spa_open(dsname
, &spa
, FTAG
)) != 0)
3797 if (!spa_feature_is_enabled(spa
,
3798 SPA_FEATURE_LZ4_COMPRESS
)) {
3799 spa_close(spa
, FTAG
);
3800 return (SET_ERROR(ENOTSUP
));
3802 spa_close(spa
, FTAG
);
3806 * If this is a bootable dataset then
3807 * verify that the compression algorithm
3808 * is supported for booting. We must return
3809 * something other than ENOTSUP since it
3810 * implies a downrev pool version.
3812 if (zfs_is_bootfs(dsname
) &&
3813 !BOOTFS_COMPRESS_VALID(intval
)) {
3814 return (SET_ERROR(ERANGE
));
3819 case ZFS_PROP_COPIES
:
3820 if (zfs_earlier_version(dsname
, SPA_VERSION_DITTO_BLOCKS
))
3821 return (SET_ERROR(ENOTSUP
));
3824 case ZFS_PROP_DEDUP
:
3825 if (zfs_earlier_version(dsname
, SPA_VERSION_DEDUP
))
3826 return (SET_ERROR(ENOTSUP
));
3829 case ZFS_PROP_SHARESMB
:
3830 if (zpl_earlier_version(dsname
, ZPL_VERSION_FUID
))
3831 return (SET_ERROR(ENOTSUP
));
3834 case ZFS_PROP_ACLINHERIT
:
3835 if (nvpair_type(pair
) == DATA_TYPE_UINT64
&&
3836 nvpair_value_uint64(pair
, &intval
) == 0) {
3837 if (intval
== ZFS_ACL_PASSTHROUGH_X
&&
3838 zfs_earlier_version(dsname
,
3839 SPA_VERSION_PASSTHROUGH_X
))
3840 return (SET_ERROR(ENOTSUP
));
3847 return (zfs_secpolicy_setprop(dsname
, prop
, pair
, CRED()));
3851 * Removes properties from the given props list that fail permission checks
3852 * needed to clear them and to restore them in case of a receive error. For each
3853 * property, make sure we have both set and inherit permissions.
3855 * Returns the first error encountered if any permission checks fail. If the
3856 * caller provides a non-NULL errlist, it also gives the complete list of names
3857 * of all the properties that failed a permission check along with the
3858 * corresponding error numbers. The caller is responsible for freeing the
3861 * If every property checks out successfully, zero is returned and the list
3862 * pointed at by errlist is NULL.
3865 zfs_check_clearable(char *dataset
, nvlist_t
*props
, nvlist_t
**errlist
)
3868 nvpair_t
*pair
, *next_pair
;
3875 VERIFY(nvlist_alloc(&errors
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
3877 zc
= kmem_alloc(sizeof (zfs_cmd_t
), KM_SLEEP
);
3878 (void) strcpy(zc
->zc_name
, dataset
);
3879 pair
= nvlist_next_nvpair(props
, NULL
);
3880 while (pair
!= NULL
) {
3881 next_pair
= nvlist_next_nvpair(props
, pair
);
3883 (void) strcpy(zc
->zc_value
, nvpair_name(pair
));
3884 if ((err
= zfs_check_settable(dataset
, pair
, CRED())) != 0 ||
3885 (err
= zfs_secpolicy_inherit_prop(zc
, NULL
, CRED())) != 0) {
3886 VERIFY(nvlist_remove_nvpair(props
, pair
) == 0);
3887 VERIFY(nvlist_add_int32(errors
,
3888 zc
->zc_value
, err
) == 0);
3892 kmem_free(zc
, sizeof (zfs_cmd_t
));
3894 if ((pair
= nvlist_next_nvpair(errors
, NULL
)) == NULL
) {
3895 nvlist_free(errors
);
3898 VERIFY(nvpair_value_int32(pair
, &rv
) == 0);
3901 if (errlist
== NULL
)
3902 nvlist_free(errors
);
3910 propval_equals(nvpair_t
*p1
, nvpair_t
*p2
)
3912 if (nvpair_type(p1
) == DATA_TYPE_NVLIST
) {
3913 /* dsl_prop_get_all_impl() format */
3915 VERIFY(nvpair_value_nvlist(p1
, &attrs
) == 0);
3916 VERIFY(nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
3920 if (nvpair_type(p2
) == DATA_TYPE_NVLIST
) {
3922 VERIFY(nvpair_value_nvlist(p2
, &attrs
) == 0);
3923 VERIFY(nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
3927 if (nvpair_type(p1
) != nvpair_type(p2
))
3930 if (nvpair_type(p1
) == DATA_TYPE_STRING
) {
3931 char *valstr1
, *valstr2
;
3933 VERIFY(nvpair_value_string(p1
, (char **)&valstr1
) == 0);
3934 VERIFY(nvpair_value_string(p2
, (char **)&valstr2
) == 0);
3935 return (strcmp(valstr1
, valstr2
) == 0);
3937 uint64_t intval1
, intval2
;
3939 VERIFY(nvpair_value_uint64(p1
, &intval1
) == 0);
3940 VERIFY(nvpair_value_uint64(p2
, &intval2
) == 0);
3941 return (intval1
== intval2
);
3946 * Remove properties from props if they are not going to change (as determined
3947 * by comparison with origprops). Remove them from origprops as well, since we
3948 * do not need to clear or restore properties that won't change.
3951 props_reduce(nvlist_t
*props
, nvlist_t
*origprops
)
3953 nvpair_t
*pair
, *next_pair
;
3955 if (origprops
== NULL
)
3956 return; /* all props need to be received */
3958 pair
= nvlist_next_nvpair(props
, NULL
);
3959 while (pair
!= NULL
) {
3960 const char *propname
= nvpair_name(pair
);
3963 next_pair
= nvlist_next_nvpair(props
, pair
);
3965 if ((nvlist_lookup_nvpair(origprops
, propname
,
3966 &match
) != 0) || !propval_equals(pair
, match
))
3967 goto next
; /* need to set received value */
3969 /* don't clear the existing received value */
3970 (void) nvlist_remove_nvpair(origprops
, match
);
3971 /* don't bother receiving the property */
3972 (void) nvlist_remove_nvpair(props
, pair
);
3979 static boolean_t zfs_ioc_recv_inject_err
;
3984 * zc_name name of containing filesystem
3985 * zc_nvlist_src{_size} nvlist of properties to apply
3986 * zc_value name of snapshot to create
3987 * zc_string name of clone origin (if DRR_FLAG_CLONE)
3988 * zc_cookie file descriptor to recv from
3989 * zc_begin_record the BEGIN record of the stream (not byteswapped)
3990 * zc_guid force flag
3991 * zc_cleanup_fd cleanup-on-exit file descriptor
3992 * zc_action_handle handle for this guid/ds mapping (or zero on first call)
3995 * zc_cookie number of bytes read
3996 * zc_nvlist_dst{_size} error for each unapplied received property
3997 * zc_obj zprop_errflags_t
3998 * zc_action_handle handle for this guid/ds mapping
4001 zfs_ioc_recv(zfs_cmd_t
*zc
)
4004 dmu_recv_cookie_t drc
;
4005 boolean_t force
= (boolean_t
)zc
->zc_guid
;
4008 int props_error
= 0;
4011 nvlist_t
*props
= NULL
; /* sent properties */
4012 nvlist_t
*origprops
= NULL
; /* existing properties */
4013 char *origin
= NULL
;
4015 char tofs
[ZFS_MAXNAMELEN
];
4016 boolean_t first_recvd_props
= B_FALSE
;
4018 if (dataset_namecheck(zc
->zc_value
, NULL
, NULL
) != 0 ||
4019 strchr(zc
->zc_value
, '@') == NULL
||
4020 strchr(zc
->zc_value
, '%'))
4021 return (SET_ERROR(EINVAL
));
4023 (void) strcpy(tofs
, zc
->zc_value
);
4024 tosnap
= strchr(tofs
, '@');
4027 if (zc
->zc_nvlist_src
!= 0 &&
4028 (error
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
4029 zc
->zc_iflags
, &props
)) != 0)
4036 return (SET_ERROR(EBADF
));
4039 VERIFY(nvlist_alloc(&errors
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
4041 if (zc
->zc_string
[0])
4042 origin
= zc
->zc_string
;
4044 error
= dmu_recv_begin(tofs
, tosnap
,
4045 &zc
->zc_begin_record
, force
, origin
, &drc
);
4050 * Set properties before we receive the stream so that they are applied
4051 * to the new data. Note that we must call dmu_recv_stream() if
4052 * dmu_recv_begin() succeeds.
4054 if (props
!= NULL
&& !drc
.drc_newfs
) {
4055 if (spa_version(dsl_dataset_get_spa(drc
.drc_ds
)) >=
4056 SPA_VERSION_RECVD_PROPS
&&
4057 !dsl_prop_get_hasrecvd(tofs
))
4058 first_recvd_props
= B_TRUE
;
4061 * If new received properties are supplied, they are to
4062 * completely replace the existing received properties, so stash
4063 * away the existing ones.
4065 if (dsl_prop_get_received(tofs
, &origprops
) == 0) {
4066 nvlist_t
*errlist
= NULL
;
4068 * Don't bother writing a property if its value won't
4069 * change (and avoid the unnecessary security checks).
4071 * The first receive after SPA_VERSION_RECVD_PROPS is a
4072 * special case where we blow away all local properties
4075 if (!first_recvd_props
)
4076 props_reduce(props
, origprops
);
4077 if (zfs_check_clearable(tofs
, origprops
, &errlist
) != 0)
4078 (void) nvlist_merge(errors
, errlist
, 0);
4079 nvlist_free(errlist
);
4081 if (clear_received_props(tofs
, origprops
,
4082 first_recvd_props
? NULL
: props
) != 0)
4083 zc
->zc_obj
|= ZPROP_ERR_NOCLEAR
;
4085 zc
->zc_obj
|= ZPROP_ERR_NOCLEAR
;
4089 if (props
!= NULL
) {
4090 props_error
= dsl_prop_set_hasrecvd(tofs
);
4092 if (props_error
== 0) {
4093 (void) zfs_set_prop_nvlist(tofs
, ZPROP_SRC_RECEIVED
,
4098 if (zc
->zc_nvlist_dst_size
!= 0 &&
4099 (nvlist_smush(errors
, zc
->zc_nvlist_dst_size
) != 0 ||
4100 put_nvlist(zc
, errors
) != 0)) {
4102 * Caller made zc->zc_nvlist_dst less than the minimum expected
4103 * size or supplied an invalid address.
4105 props_error
= SET_ERROR(EINVAL
);
4109 error
= dmu_recv_stream(&drc
, fp
->f_vnode
, &off
, zc
->zc_cleanup_fd
,
4110 &zc
->zc_action_handle
);
4113 zfs_sb_t
*zsb
= NULL
;
4115 if (get_zfs_sb(tofs
, &zsb
) == 0) {
4119 error
= zfs_suspend_fs(zsb
);
4121 * If the suspend fails, then the recv_end will
4122 * likely also fail, and clean up after itself.
4124 end_err
= dmu_recv_end(&drc
, zsb
);
4126 error
= zfs_resume_fs(zsb
, tofs
);
4127 error
= error
? error
: end_err
;
4128 deactivate_super(zsb
->z_sb
);
4130 error
= dmu_recv_end(&drc
, NULL
);
4134 zc
->zc_cookie
= off
- fp
->f_offset
;
4135 if (VOP_SEEK(fp
->f_vnode
, fp
->f_offset
, &off
, NULL
) == 0)
4139 if (zfs_ioc_recv_inject_err
) {
4140 zfs_ioc_recv_inject_err
= B_FALSE
;
4147 zvol_create_minors(tofs
);
4151 * On error, restore the original props.
4153 if (error
!= 0 && props
!= NULL
&& !drc
.drc_newfs
) {
4154 if (clear_received_props(tofs
, props
, NULL
) != 0) {
4156 * We failed to clear the received properties.
4157 * Since we may have left a $recvd value on the
4158 * system, we can't clear the $hasrecvd flag.
4160 zc
->zc_obj
|= ZPROP_ERR_NORESTORE
;
4161 } else if (first_recvd_props
) {
4162 dsl_prop_unset_hasrecvd(tofs
);
4165 if (origprops
== NULL
&& !drc
.drc_newfs
) {
4166 /* We failed to stash the original properties. */
4167 zc
->zc_obj
|= ZPROP_ERR_NORESTORE
;
4171 * dsl_props_set() will not convert RECEIVED to LOCAL on or
4172 * after SPA_VERSION_RECVD_PROPS, so we need to specify LOCAL
4173 * explictly if we're restoring local properties cleared in the
4174 * first new-style receive.
4176 if (origprops
!= NULL
&&
4177 zfs_set_prop_nvlist(tofs
, (first_recvd_props
?
4178 ZPROP_SRC_LOCAL
: ZPROP_SRC_RECEIVED
),
4179 origprops
, NULL
) != 0) {
4181 * We stashed the original properties but failed to
4184 zc
->zc_obj
|= ZPROP_ERR_NORESTORE
;
4189 nvlist_free(origprops
);
4190 nvlist_free(errors
);
4194 error
= props_error
;
4201 * zc_name name of snapshot to send
4202 * zc_cookie file descriptor to send stream to
4203 * zc_obj fromorigin flag (mutually exclusive with zc_fromobj)
4204 * zc_sendobj objsetid of snapshot to send
4205 * zc_fromobj objsetid of incremental fromsnap (may be zero)
4206 * zc_guid if set, estimate size of stream only. zc_cookie is ignored.
4207 * output size in zc_objset_type.
4208 * zc_flags if =1, WRITE_EMBEDDED records are permitted
4211 * zc_objset_type estimated size, if zc_guid is set
4214 zfs_ioc_send(zfs_cmd_t
*zc
)
4218 boolean_t estimate
= (zc
->zc_guid
!= 0);
4219 boolean_t embedok
= (zc
->zc_flags
& 0x1);
4221 if (zc
->zc_obj
!= 0) {
4223 dsl_dataset_t
*tosnap
;
4225 error
= dsl_pool_hold(zc
->zc_name
, FTAG
, &dp
);
4229 error
= dsl_dataset_hold_obj(dp
, zc
->zc_sendobj
, FTAG
, &tosnap
);
4231 dsl_pool_rele(dp
, FTAG
);
4235 if (dsl_dir_is_clone(tosnap
->ds_dir
))
4236 zc
->zc_fromobj
= tosnap
->ds_dir
->dd_phys
->dd_origin_obj
;
4237 dsl_dataset_rele(tosnap
, FTAG
);
4238 dsl_pool_rele(dp
, FTAG
);
4243 dsl_dataset_t
*tosnap
;
4244 dsl_dataset_t
*fromsnap
= NULL
;
4246 error
= dsl_pool_hold(zc
->zc_name
, FTAG
, &dp
);
4250 error
= dsl_dataset_hold_obj(dp
, zc
->zc_sendobj
, FTAG
, &tosnap
);
4252 dsl_pool_rele(dp
, FTAG
);
4256 if (zc
->zc_fromobj
!= 0) {
4257 error
= dsl_dataset_hold_obj(dp
, zc
->zc_fromobj
,
4260 dsl_dataset_rele(tosnap
, FTAG
);
4261 dsl_pool_rele(dp
, FTAG
);
4266 error
= dmu_send_estimate(tosnap
, fromsnap
,
4267 &zc
->zc_objset_type
);
4269 if (fromsnap
!= NULL
)
4270 dsl_dataset_rele(fromsnap
, FTAG
);
4271 dsl_dataset_rele(tosnap
, FTAG
);
4272 dsl_pool_rele(dp
, FTAG
);
4274 file_t
*fp
= getf(zc
->zc_cookie
);
4276 return (SET_ERROR(EBADF
));
4279 error
= dmu_send_obj(zc
->zc_name
, zc
->zc_sendobj
,
4280 zc
->zc_fromobj
, embedok
, zc
->zc_cookie
, fp
->f_vnode
, &off
);
4282 if (VOP_SEEK(fp
->f_vnode
, fp
->f_offset
, &off
, NULL
) == 0)
4284 releasef(zc
->zc_cookie
);
4291 * zc_name name of snapshot on which to report progress
4292 * zc_cookie file descriptor of send stream
4295 * zc_cookie number of bytes written in send stream thus far
4298 zfs_ioc_send_progress(zfs_cmd_t
*zc
)
4302 dmu_sendarg_t
*dsp
= NULL
;
4305 error
= dsl_pool_hold(zc
->zc_name
, FTAG
, &dp
);
4309 error
= dsl_dataset_hold(dp
, zc
->zc_name
, FTAG
, &ds
);
4311 dsl_pool_rele(dp
, FTAG
);
4315 mutex_enter(&ds
->ds_sendstream_lock
);
4318 * Iterate over all the send streams currently active on this dataset.
4319 * If there's one which matches the specified file descriptor _and_ the
4320 * stream was started by the current process, return the progress of
4324 for (dsp
= list_head(&ds
->ds_sendstreams
); dsp
!= NULL
;
4325 dsp
= list_next(&ds
->ds_sendstreams
, dsp
)) {
4326 if (dsp
->dsa_outfd
== zc
->zc_cookie
&&
4327 dsp
->dsa_proc
->group_leader
== curproc
->group_leader
)
4332 zc
->zc_cookie
= *(dsp
->dsa_off
);
4334 error
= SET_ERROR(ENOENT
);
4336 mutex_exit(&ds
->ds_sendstream_lock
);
4337 dsl_dataset_rele(ds
, FTAG
);
4338 dsl_pool_rele(dp
, FTAG
);
4343 zfs_ioc_inject_fault(zfs_cmd_t
*zc
)
4347 error
= zio_inject_fault(zc
->zc_name
, (int)zc
->zc_guid
, &id
,
4348 &zc
->zc_inject_record
);
4351 zc
->zc_guid
= (uint64_t)id
;
4357 zfs_ioc_clear_fault(zfs_cmd_t
*zc
)
4359 return (zio_clear_fault((int)zc
->zc_guid
));
4363 zfs_ioc_inject_list_next(zfs_cmd_t
*zc
)
4365 int id
= (int)zc
->zc_guid
;
4368 error
= zio_inject_list_next(&id
, zc
->zc_name
, sizeof (zc
->zc_name
),
4369 &zc
->zc_inject_record
);
4377 zfs_ioc_error_log(zfs_cmd_t
*zc
)
4381 size_t count
= (size_t)zc
->zc_nvlist_dst_size
;
4383 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
4386 error
= spa_get_errlog(spa
, (void *)(uintptr_t)zc
->zc_nvlist_dst
,
4389 zc
->zc_nvlist_dst_size
= count
;
4391 zc
->zc_nvlist_dst_size
= spa_get_errlog_size(spa
);
4393 spa_close(spa
, FTAG
);
4399 zfs_ioc_clear(zfs_cmd_t
*zc
)
4406 * On zpool clear we also fix up missing slogs
4408 mutex_enter(&spa_namespace_lock
);
4409 spa
= spa_lookup(zc
->zc_name
);
4411 mutex_exit(&spa_namespace_lock
);
4412 return (SET_ERROR(EIO
));
4414 if (spa_get_log_state(spa
) == SPA_LOG_MISSING
) {
4415 /* we need to let spa_open/spa_load clear the chains */
4416 spa_set_log_state(spa
, SPA_LOG_CLEAR
);
4418 spa
->spa_last_open_failed
= 0;
4419 mutex_exit(&spa_namespace_lock
);
4421 if (zc
->zc_cookie
& ZPOOL_NO_REWIND
) {
4422 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
4425 nvlist_t
*config
= NULL
;
4427 if (zc
->zc_nvlist_src
== 0)
4428 return (SET_ERROR(EINVAL
));
4430 if ((error
= get_nvlist(zc
->zc_nvlist_src
,
4431 zc
->zc_nvlist_src_size
, zc
->zc_iflags
, &policy
)) == 0) {
4432 error
= spa_open_rewind(zc
->zc_name
, &spa
, FTAG
,
4434 if (config
!= NULL
) {
4437 if ((err
= put_nvlist(zc
, config
)) != 0)
4439 nvlist_free(config
);
4441 nvlist_free(policy
);
4448 spa_vdev_state_enter(spa
, SCL_NONE
);
4450 if (zc
->zc_guid
== 0) {
4453 vd
= spa_lookup_by_guid(spa
, zc
->zc_guid
, B_TRUE
);
4455 (void) spa_vdev_state_exit(spa
, NULL
, ENODEV
);
4456 spa_close(spa
, FTAG
);
4457 return (SET_ERROR(ENODEV
));
4461 vdev_clear(spa
, vd
);
4463 (void) spa_vdev_state_exit(spa
, NULL
, 0);
4466 * Resume any suspended I/Os.
4468 if (zio_resume(spa
) != 0)
4469 error
= SET_ERROR(EIO
);
4471 spa_close(spa
, FTAG
);
4477 zfs_ioc_pool_reopen(zfs_cmd_t
*zc
)
4482 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
4486 spa_vdev_state_enter(spa
, SCL_NONE
);
4489 * If a resilver is already in progress then set the
4490 * spa_scrub_reopen flag to B_TRUE so that we don't restart
4491 * the scan as a side effect of the reopen. Otherwise, let
4492 * vdev_open() decided if a resilver is required.
4494 spa
->spa_scrub_reopen
= dsl_scan_resilvering(spa
->spa_dsl_pool
);
4495 vdev_reopen(spa
->spa_root_vdev
);
4496 spa
->spa_scrub_reopen
= B_FALSE
;
4498 (void) spa_vdev_state_exit(spa
, NULL
, 0);
4499 spa_close(spa
, FTAG
);
4504 * zc_name name of filesystem
4505 * zc_value name of origin snapshot
4508 * zc_string name of conflicting snapshot, if there is one
4511 zfs_ioc_promote(zfs_cmd_t
*zc
)
4516 * We don't need to unmount *all* the origin fs's snapshots, but
4519 cp
= strchr(zc
->zc_value
, '@');
4522 (void) dmu_objset_find(zc
->zc_value
,
4523 zfs_unmount_snap_cb
, NULL
, DS_FIND_SNAPSHOTS
);
4524 return (dsl_dataset_promote(zc
->zc_name
, zc
->zc_string
));
4528 * Retrieve a single {user|group}{used|quota}@... property.
4531 * zc_name name of filesystem
4532 * zc_objset_type zfs_userquota_prop_t
4533 * zc_value domain name (eg. "S-1-234-567-89")
4534 * zc_guid RID/UID/GID
4537 * zc_cookie property value
4540 zfs_ioc_userspace_one(zfs_cmd_t
*zc
)
4545 if (zc
->zc_objset_type
>= ZFS_NUM_USERQUOTA_PROPS
)
4546 return (SET_ERROR(EINVAL
));
4548 error
= zfs_sb_hold(zc
->zc_name
, FTAG
, &zsb
, B_FALSE
);
4552 error
= zfs_userspace_one(zsb
,
4553 zc
->zc_objset_type
, zc
->zc_value
, zc
->zc_guid
, &zc
->zc_cookie
);
4554 zfs_sb_rele(zsb
, FTAG
);
4561 * zc_name name of filesystem
4562 * zc_cookie zap cursor
4563 * zc_objset_type zfs_userquota_prop_t
4564 * zc_nvlist_dst[_size] buffer to fill (not really an nvlist)
4567 * zc_nvlist_dst[_size] data buffer (array of zfs_useracct_t)
4568 * zc_cookie zap cursor
4571 zfs_ioc_userspace_many(zfs_cmd_t
*zc
)
4574 int bufsize
= zc
->zc_nvlist_dst_size
;
4579 return (SET_ERROR(ENOMEM
));
4581 error
= zfs_sb_hold(zc
->zc_name
, FTAG
, &zsb
, B_FALSE
);
4585 buf
= vmem_alloc(bufsize
, KM_SLEEP
);
4587 error
= zfs_userspace_many(zsb
, zc
->zc_objset_type
, &zc
->zc_cookie
,
4588 buf
, &zc
->zc_nvlist_dst_size
);
4591 error
= xcopyout(buf
,
4592 (void *)(uintptr_t)zc
->zc_nvlist_dst
,
4593 zc
->zc_nvlist_dst_size
);
4595 vmem_free(buf
, bufsize
);
4596 zfs_sb_rele(zsb
, FTAG
);
4603 * zc_name name of filesystem
4609 zfs_ioc_userspace_upgrade(zfs_cmd_t
*zc
)
4615 if (get_zfs_sb(zc
->zc_name
, &zsb
) == 0) {
4616 if (!dmu_objset_userused_enabled(zsb
->z_os
)) {
4618 * If userused is not enabled, it may be because the
4619 * objset needs to be closed & reopened (to grow the
4620 * objset_phys_t). Suspend/resume the fs will do that.
4622 error
= zfs_suspend_fs(zsb
);
4624 dmu_objset_refresh_ownership(zsb
->z_os
,
4626 error
= zfs_resume_fs(zsb
, zc
->zc_name
);
4630 error
= dmu_objset_userspace_upgrade(zsb
->z_os
);
4631 deactivate_super(zsb
->z_sb
);
4633 /* XXX kind of reading contents without owning */
4634 error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
);
4638 error
= dmu_objset_userspace_upgrade(os
);
4639 dmu_objset_rele(os
, FTAG
);
4646 zfs_ioc_share(zfs_cmd_t
*zc
)
4648 return (SET_ERROR(ENOSYS
));
4651 ace_t full_access
[] = {
4652 {(uid_t
)-1, ACE_ALL_PERMS
, ACE_EVERYONE
, 0}
4657 * zc_name name of containing filesystem
4658 * zc_obj object # beyond which we want next in-use object #
4661 * zc_obj next in-use object #
4664 zfs_ioc_next_obj(zfs_cmd_t
*zc
)
4666 objset_t
*os
= NULL
;
4669 error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
);
4673 error
= dmu_object_next(os
, &zc
->zc_obj
, B_FALSE
,
4674 os
->os_dsl_dataset
->ds_phys
->ds_prev_snap_txg
);
4676 dmu_objset_rele(os
, FTAG
);
4682 * zc_name name of filesystem
4683 * zc_value prefix name for snapshot
4684 * zc_cleanup_fd cleanup-on-exit file descriptor for calling process
4687 * zc_value short name of new snapshot
4690 zfs_ioc_tmp_snapshot(zfs_cmd_t
*zc
)
4697 error
= zfs_onexit_fd_hold(zc
->zc_cleanup_fd
, &minor
);
4701 snap_name
= kmem_asprintf("%s-%016llx", zc
->zc_value
,
4702 (u_longlong_t
)ddi_get_lbolt64());
4703 hold_name
= kmem_asprintf("%%%s", zc
->zc_value
);
4705 error
= dsl_dataset_snapshot_tmp(zc
->zc_name
, snap_name
, minor
,
4708 (void) strcpy(zc
->zc_value
, snap_name
);
4711 zfs_onexit_fd_rele(zc
->zc_cleanup_fd
);
4717 * zc_name name of "to" snapshot
4718 * zc_value name of "from" snapshot
4719 * zc_cookie file descriptor to write diff data on
4722 * dmu_diff_record_t's to the file descriptor
4725 zfs_ioc_diff(zfs_cmd_t
*zc
)
4731 fp
= getf(zc
->zc_cookie
);
4733 return (SET_ERROR(EBADF
));
4737 error
= dmu_diff(zc
->zc_name
, zc
->zc_value
, fp
->f_vnode
, &off
);
4739 if (VOP_SEEK(fp
->f_vnode
, fp
->f_offset
, &off
, NULL
) == 0)
4741 releasef(zc
->zc_cookie
);
4747 * Remove all ACL files in shares dir
4749 #ifdef HAVE_SMB_SHARE
4751 zfs_smb_acl_purge(znode_t
*dzp
)
4754 zap_attribute_t zap
;
4755 zfs_sb_t
*zsb
= ZTOZSB(dzp
);
4758 for (zap_cursor_init(&zc
, zsb
->z_os
, dzp
->z_id
);
4759 (error
= zap_cursor_retrieve(&zc
, &zap
)) == 0;
4760 zap_cursor_advance(&zc
)) {
4761 if ((error
= VOP_REMOVE(ZTOV(dzp
), zap
.za_name
, kcred
,
4765 zap_cursor_fini(&zc
);
4768 #endif /* HAVE_SMB_SHARE */
4771 zfs_ioc_smb_acl(zfs_cmd_t
*zc
)
4773 #ifdef HAVE_SMB_SHARE
4776 vnode_t
*resourcevp
= NULL
;
4785 if ((error
= lookupname(zc
->zc_value
, UIO_SYSSPACE
,
4786 NO_FOLLOW
, NULL
, &vp
)) != 0)
4789 /* Now make sure mntpnt and dataset are ZFS */
4791 if (vp
->v_vfsp
->vfs_fstype
!= zfsfstype
||
4792 (strcmp((char *)refstr_value(vp
->v_vfsp
->vfs_resource
),
4793 zc
->zc_name
) != 0)) {
4795 return (SET_ERROR(EINVAL
));
4803 * Create share dir if its missing.
4805 mutex_enter(&zsb
->z_lock
);
4806 if (zsb
->z_shares_dir
== 0) {
4809 tx
= dmu_tx_create(zsb
->z_os
);
4810 dmu_tx_hold_zap(tx
, MASTER_NODE_OBJ
, TRUE
,
4812 dmu_tx_hold_zap(tx
, DMU_NEW_OBJECT
, FALSE
, NULL
);
4813 error
= dmu_tx_assign(tx
, TXG_WAIT
);
4817 error
= zfs_create_share_dir(zsb
, tx
);
4821 mutex_exit(&zsb
->z_lock
);
4827 mutex_exit(&zsb
->z_lock
);
4829 ASSERT(zsb
->z_shares_dir
);
4830 if ((error
= zfs_zget(zsb
, zsb
->z_shares_dir
, &sharedir
)) != 0) {
4836 switch (zc
->zc_cookie
) {
4837 case ZFS_SMB_ACL_ADD
:
4838 vattr
.va_mask
= AT_MODE
|AT_UID
|AT_GID
|AT_TYPE
;
4839 vattr
.va_mode
= S_IFREG
|0777;
4843 vsec
.vsa_mask
= VSA_ACE
;
4844 vsec
.vsa_aclentp
= &full_access
;
4845 vsec
.vsa_aclentsz
= sizeof (full_access
);
4846 vsec
.vsa_aclcnt
= 1;
4848 error
= VOP_CREATE(ZTOV(sharedir
), zc
->zc_string
,
4849 &vattr
, EXCL
, 0, &resourcevp
, kcred
, 0, NULL
, &vsec
);
4851 VN_RELE(resourcevp
);
4854 case ZFS_SMB_ACL_REMOVE
:
4855 error
= VOP_REMOVE(ZTOV(sharedir
), zc
->zc_string
, kcred
,
4859 case ZFS_SMB_ACL_RENAME
:
4860 if ((error
= get_nvlist(zc
->zc_nvlist_src
,
4861 zc
->zc_nvlist_src_size
, zc
->zc_iflags
, &nvlist
)) != 0) {
4866 if (nvlist_lookup_string(nvlist
, ZFS_SMB_ACL_SRC
, &src
) ||
4867 nvlist_lookup_string(nvlist
, ZFS_SMB_ACL_TARGET
,
4870 VN_RELE(ZTOV(sharedir
));
4872 nvlist_free(nvlist
);
4875 error
= VOP_RENAME(ZTOV(sharedir
), src
, ZTOV(sharedir
), target
,
4877 nvlist_free(nvlist
);
4880 case ZFS_SMB_ACL_PURGE
:
4881 error
= zfs_smb_acl_purge(sharedir
);
4885 error
= SET_ERROR(EINVAL
);
4890 VN_RELE(ZTOV(sharedir
));
4896 return (SET_ERROR(ENOTSUP
));
4897 #endif /* HAVE_SMB_SHARE */
4902 * "holds" -> { snapname -> holdname (string), ... }
4903 * (optional) "cleanup_fd" -> fd (int32)
4907 * snapname -> error value (int32)
4913 zfs_ioc_hold(const char *pool
, nvlist_t
*args
, nvlist_t
*errlist
)
4916 int cleanup_fd
= -1;
4920 error
= nvlist_lookup_nvlist(args
, "holds", &holds
);
4922 return (SET_ERROR(EINVAL
));
4924 if (nvlist_lookup_int32(args
, "cleanup_fd", &cleanup_fd
) == 0) {
4925 error
= zfs_onexit_fd_hold(cleanup_fd
, &minor
);
4930 error
= dsl_dataset_user_hold(holds
, minor
, errlist
);
4932 zfs_onexit_fd_rele(cleanup_fd
);
4937 * innvl is not used.
4940 * holdname -> time added (uint64 seconds since epoch)
4946 zfs_ioc_get_holds(const char *snapname
, nvlist_t
*args
, nvlist_t
*outnvl
)
4948 return (dsl_dataset_get_holds(snapname
, outnvl
));
4953 * snapname -> { holdname, ... }
4958 * snapname -> error value (int32)
4964 zfs_ioc_release(const char *pool
, nvlist_t
*holds
, nvlist_t
*errlist
)
4966 return (dsl_dataset_user_release(holds
, errlist
));
4971 * zc_guid flags (ZEVENT_NONBLOCK)
4972 * zc_cleanup_fd zevent file descriptor
4975 * zc_nvlist_dst next nvlist event
4976 * zc_cookie dropped events since last get
4979 zfs_ioc_events_next(zfs_cmd_t
*zc
)
4982 nvlist_t
*event
= NULL
;
4984 uint64_t dropped
= 0;
4987 error
= zfs_zevent_fd_hold(zc
->zc_cleanup_fd
, &minor
, &ze
);
4992 error
= zfs_zevent_next(ze
, &event
,
4993 &zc
->zc_nvlist_dst_size
, &dropped
);
4994 if (event
!= NULL
) {
4995 zc
->zc_cookie
= dropped
;
4996 error
= put_nvlist(zc
, event
);
5000 if (zc
->zc_guid
& ZEVENT_NONBLOCK
)
5003 if ((error
== 0) || (error
!= ENOENT
))
5006 error
= zfs_zevent_wait(ze
);
5011 zfs_zevent_fd_rele(zc
->zc_cleanup_fd
);
5018 * zc_cookie cleared events count
5021 zfs_ioc_events_clear(zfs_cmd_t
*zc
)
5025 zfs_zevent_drain_all(&count
);
5026 zc
->zc_cookie
= count
;
5033 * zc_guid eid | ZEVENT_SEEK_START | ZEVENT_SEEK_END
5034 * zc_cleanup zevent file descriptor
5037 zfs_ioc_events_seek(zfs_cmd_t
*zc
)
5043 error
= zfs_zevent_fd_hold(zc
->zc_cleanup_fd
, &minor
, &ze
);
5047 error
= zfs_zevent_seek(ze
, zc
->zc_guid
);
5048 zfs_zevent_fd_rele(zc
->zc_cleanup_fd
);
5055 * zc_name name of new filesystem or snapshot
5056 * zc_value full name of old snapshot
5059 * zc_cookie space in bytes
5060 * zc_objset_type compressed space in bytes
5061 * zc_perm_action uncompressed space in bytes
5064 zfs_ioc_space_written(zfs_cmd_t
*zc
)
5068 dsl_dataset_t
*new, *old
;
5070 error
= dsl_pool_hold(zc
->zc_name
, FTAG
, &dp
);
5073 error
= dsl_dataset_hold(dp
, zc
->zc_name
, FTAG
, &new);
5075 dsl_pool_rele(dp
, FTAG
);
5078 error
= dsl_dataset_hold(dp
, zc
->zc_value
, FTAG
, &old
);
5080 dsl_dataset_rele(new, FTAG
);
5081 dsl_pool_rele(dp
, FTAG
);
5085 error
= dsl_dataset_space_written(old
, new, &zc
->zc_cookie
,
5086 &zc
->zc_objset_type
, &zc
->zc_perm_action
);
5087 dsl_dataset_rele(old
, FTAG
);
5088 dsl_dataset_rele(new, FTAG
);
5089 dsl_pool_rele(dp
, FTAG
);
5095 * "firstsnap" -> snapshot name
5099 * "used" -> space in bytes
5100 * "compressed" -> compressed space in bytes
5101 * "uncompressed" -> uncompressed space in bytes
5105 zfs_ioc_space_snaps(const char *lastsnap
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
5109 dsl_dataset_t
*new, *old
;
5111 uint64_t used
, comp
, uncomp
;
5113 if (nvlist_lookup_string(innvl
, "firstsnap", &firstsnap
) != 0)
5114 return (SET_ERROR(EINVAL
));
5116 error
= dsl_pool_hold(lastsnap
, FTAG
, &dp
);
5120 error
= dsl_dataset_hold(dp
, lastsnap
, FTAG
, &new);
5122 dsl_pool_rele(dp
, FTAG
);
5125 error
= dsl_dataset_hold(dp
, firstsnap
, FTAG
, &old
);
5127 dsl_dataset_rele(new, FTAG
);
5128 dsl_pool_rele(dp
, FTAG
);
5132 error
= dsl_dataset_space_wouldfree(old
, new, &used
, &comp
, &uncomp
);
5133 dsl_dataset_rele(old
, FTAG
);
5134 dsl_dataset_rele(new, FTAG
);
5135 dsl_pool_rele(dp
, FTAG
);
5136 fnvlist_add_uint64(outnvl
, "used", used
);
5137 fnvlist_add_uint64(outnvl
, "compressed", comp
);
5138 fnvlist_add_uint64(outnvl
, "uncompressed", uncomp
);
5144 * "fd" -> file descriptor to write stream to (int32)
5145 * (optional) "fromsnap" -> full snap name to send an incremental from
5146 * (optional) "embedok" -> (value ignored)
5147 * presence indicates DRR_WRITE_EMBEDDED records are permitted
5154 zfs_ioc_send_new(const char *snapname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
5158 char *fromname
= NULL
;
5163 error
= nvlist_lookup_int32(innvl
, "fd", &fd
);
5165 return (SET_ERROR(EINVAL
));
5167 (void) nvlist_lookup_string(innvl
, "fromsnap", &fromname
);
5169 embedok
= nvlist_exists(innvl
, "embedok");
5171 if ((fp
= getf(fd
)) == NULL
)
5172 return (SET_ERROR(EBADF
));
5175 error
= dmu_send(snapname
, fromname
, embedok
, fd
, fp
->f_vnode
, &off
);
5177 if (VOP_SEEK(fp
->f_vnode
, fp
->f_offset
, &off
, NULL
) == 0)
5185 * Determine approximately how large a zfs send stream will be -- the number
5186 * of bytes that will be written to the fd supplied to zfs_ioc_send_new().
5189 * (optional) "fromsnap" -> full snap name to send an incremental from
5193 * "space" -> bytes of space (uint64)
5197 zfs_ioc_send_space(const char *snapname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
5200 dsl_dataset_t
*fromsnap
= NULL
;
5201 dsl_dataset_t
*tosnap
;
5206 error
= dsl_pool_hold(snapname
, FTAG
, &dp
);
5210 error
= dsl_dataset_hold(dp
, snapname
, FTAG
, &tosnap
);
5212 dsl_pool_rele(dp
, FTAG
);
5216 error
= nvlist_lookup_string(innvl
, "fromsnap", &fromname
);
5218 error
= dsl_dataset_hold(dp
, fromname
, FTAG
, &fromsnap
);
5220 dsl_dataset_rele(tosnap
, FTAG
);
5221 dsl_pool_rele(dp
, FTAG
);
5226 error
= dmu_send_estimate(tosnap
, fromsnap
, &space
);
5227 fnvlist_add_uint64(outnvl
, "space", space
);
5229 if (fromsnap
!= NULL
)
5230 dsl_dataset_rele(fromsnap
, FTAG
);
5231 dsl_dataset_rele(tosnap
, FTAG
);
5232 dsl_pool_rele(dp
, FTAG
);
5237 static zfs_ioc_vec_t zfs_ioc_vec
[ZFS_IOC_LAST
- ZFS_IOC_FIRST
];
5240 zfs_ioctl_register_legacy(zfs_ioc_t ioc
, zfs_ioc_legacy_func_t
*func
,
5241 zfs_secpolicy_func_t
*secpolicy
, zfs_ioc_namecheck_t namecheck
,
5242 boolean_t log_history
, zfs_ioc_poolcheck_t pool_check
)
5244 zfs_ioc_vec_t
*vec
= &zfs_ioc_vec
[ioc
- ZFS_IOC_FIRST
];
5246 ASSERT3U(ioc
, >=, ZFS_IOC_FIRST
);
5247 ASSERT3U(ioc
, <, ZFS_IOC_LAST
);
5248 ASSERT3P(vec
->zvec_legacy_func
, ==, NULL
);
5249 ASSERT3P(vec
->zvec_func
, ==, NULL
);
5251 vec
->zvec_legacy_func
= func
;
5252 vec
->zvec_secpolicy
= secpolicy
;
5253 vec
->zvec_namecheck
= namecheck
;
5254 vec
->zvec_allow_log
= log_history
;
5255 vec
->zvec_pool_check
= pool_check
;
5259 * See the block comment at the beginning of this file for details on
5260 * each argument to this function.
5263 zfs_ioctl_register(const char *name
, zfs_ioc_t ioc
, zfs_ioc_func_t
*func
,
5264 zfs_secpolicy_func_t
*secpolicy
, zfs_ioc_namecheck_t namecheck
,
5265 zfs_ioc_poolcheck_t pool_check
, boolean_t smush_outnvlist
,
5266 boolean_t allow_log
)
5268 zfs_ioc_vec_t
*vec
= &zfs_ioc_vec
[ioc
- ZFS_IOC_FIRST
];
5270 ASSERT3U(ioc
, >=, ZFS_IOC_FIRST
);
5271 ASSERT3U(ioc
, <, ZFS_IOC_LAST
);
5272 ASSERT3P(vec
->zvec_legacy_func
, ==, NULL
);
5273 ASSERT3P(vec
->zvec_func
, ==, NULL
);
5275 /* if we are logging, the name must be valid */
5276 ASSERT(!allow_log
|| namecheck
!= NO_NAME
);
5278 vec
->zvec_name
= name
;
5279 vec
->zvec_func
= func
;
5280 vec
->zvec_secpolicy
= secpolicy
;
5281 vec
->zvec_namecheck
= namecheck
;
5282 vec
->zvec_pool_check
= pool_check
;
5283 vec
->zvec_smush_outnvlist
= smush_outnvlist
;
5284 vec
->zvec_allow_log
= allow_log
;
5288 zfs_ioctl_register_pool(zfs_ioc_t ioc
, zfs_ioc_legacy_func_t
*func
,
5289 zfs_secpolicy_func_t
*secpolicy
, boolean_t log_history
,
5290 zfs_ioc_poolcheck_t pool_check
)
5292 zfs_ioctl_register_legacy(ioc
, func
, secpolicy
,
5293 POOL_NAME
, log_history
, pool_check
);
5297 zfs_ioctl_register_dataset_nolog(zfs_ioc_t ioc
, zfs_ioc_legacy_func_t
*func
,
5298 zfs_secpolicy_func_t
*secpolicy
, zfs_ioc_poolcheck_t pool_check
)
5300 zfs_ioctl_register_legacy(ioc
, func
, secpolicy
,
5301 DATASET_NAME
, B_FALSE
, pool_check
);
5305 zfs_ioctl_register_pool_modify(zfs_ioc_t ioc
, zfs_ioc_legacy_func_t
*func
)
5307 zfs_ioctl_register_legacy(ioc
, func
, zfs_secpolicy_config
,
5308 POOL_NAME
, B_TRUE
, POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
);
5312 zfs_ioctl_register_pool_meta(zfs_ioc_t ioc
, zfs_ioc_legacy_func_t
*func
,
5313 zfs_secpolicy_func_t
*secpolicy
)
5315 zfs_ioctl_register_legacy(ioc
, func
, secpolicy
,
5316 NO_NAME
, B_FALSE
, POOL_CHECK_NONE
);
5320 zfs_ioctl_register_dataset_read_secpolicy(zfs_ioc_t ioc
,
5321 zfs_ioc_legacy_func_t
*func
, zfs_secpolicy_func_t
*secpolicy
)
5323 zfs_ioctl_register_legacy(ioc
, func
, secpolicy
,
5324 DATASET_NAME
, B_FALSE
, POOL_CHECK_SUSPENDED
);
5328 zfs_ioctl_register_dataset_read(zfs_ioc_t ioc
, zfs_ioc_legacy_func_t
*func
)
5330 zfs_ioctl_register_dataset_read_secpolicy(ioc
, func
,
5331 zfs_secpolicy_read
);
5335 zfs_ioctl_register_dataset_modify(zfs_ioc_t ioc
, zfs_ioc_legacy_func_t
*func
,
5336 zfs_secpolicy_func_t
*secpolicy
)
5338 zfs_ioctl_register_legacy(ioc
, func
, secpolicy
,
5339 DATASET_NAME
, B_TRUE
, POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
);
5343 zfs_ioctl_init(void)
5345 zfs_ioctl_register("snapshot", ZFS_IOC_SNAPSHOT
,
5346 zfs_ioc_snapshot
, zfs_secpolicy_snapshot
, POOL_NAME
,
5347 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5349 zfs_ioctl_register("log_history", ZFS_IOC_LOG_HISTORY
,
5350 zfs_ioc_log_history
, zfs_secpolicy_log_history
, NO_NAME
,
5351 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_FALSE
, B_FALSE
);
5353 zfs_ioctl_register("space_snaps", ZFS_IOC_SPACE_SNAPS
,
5354 zfs_ioc_space_snaps
, zfs_secpolicy_read
, DATASET_NAME
,
5355 POOL_CHECK_SUSPENDED
, B_FALSE
, B_FALSE
);
5357 zfs_ioctl_register("send", ZFS_IOC_SEND_NEW
,
5358 zfs_ioc_send_new
, zfs_secpolicy_send_new
, DATASET_NAME
,
5359 POOL_CHECK_SUSPENDED
, B_FALSE
, B_FALSE
);
5361 zfs_ioctl_register("send_space", ZFS_IOC_SEND_SPACE
,
5362 zfs_ioc_send_space
, zfs_secpolicy_read
, DATASET_NAME
,
5363 POOL_CHECK_SUSPENDED
, B_FALSE
, B_FALSE
);
5365 zfs_ioctl_register("create", ZFS_IOC_CREATE
,
5366 zfs_ioc_create
, zfs_secpolicy_create_clone
, DATASET_NAME
,
5367 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5369 zfs_ioctl_register("clone", ZFS_IOC_CLONE
,
5370 zfs_ioc_clone
, zfs_secpolicy_create_clone
, DATASET_NAME
,
5371 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5373 zfs_ioctl_register("destroy_snaps", ZFS_IOC_DESTROY_SNAPS
,
5374 zfs_ioc_destroy_snaps
, zfs_secpolicy_destroy_snaps
, POOL_NAME
,
5375 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5377 zfs_ioctl_register("hold", ZFS_IOC_HOLD
,
5378 zfs_ioc_hold
, zfs_secpolicy_hold
, POOL_NAME
,
5379 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5380 zfs_ioctl_register("release", ZFS_IOC_RELEASE
,
5381 zfs_ioc_release
, zfs_secpolicy_release
, POOL_NAME
,
5382 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5384 zfs_ioctl_register("get_holds", ZFS_IOC_GET_HOLDS
,
5385 zfs_ioc_get_holds
, zfs_secpolicy_read
, DATASET_NAME
,
5386 POOL_CHECK_SUSPENDED
, B_FALSE
, B_FALSE
);
5388 zfs_ioctl_register("rollback", ZFS_IOC_ROLLBACK
,
5389 zfs_ioc_rollback
, zfs_secpolicy_rollback
, DATASET_NAME
,
5390 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_FALSE
, B_TRUE
);
5392 zfs_ioctl_register("bookmark", ZFS_IOC_BOOKMARK
,
5393 zfs_ioc_bookmark
, zfs_secpolicy_bookmark
, POOL_NAME
,
5394 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5396 zfs_ioctl_register("get_bookmarks", ZFS_IOC_GET_BOOKMARKS
,
5397 zfs_ioc_get_bookmarks
, zfs_secpolicy_read
, DATASET_NAME
,
5398 POOL_CHECK_SUSPENDED
, B_FALSE
, B_FALSE
);
5400 zfs_ioctl_register("destroy_bookmarks", ZFS_IOC_DESTROY_BOOKMARKS
,
5401 zfs_ioc_destroy_bookmarks
, zfs_secpolicy_destroy_bookmarks
,
5403 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5405 /* IOCTLS that use the legacy function signature */
5407 zfs_ioctl_register_legacy(ZFS_IOC_POOL_FREEZE
, zfs_ioc_pool_freeze
,
5408 zfs_secpolicy_config
, NO_NAME
, B_FALSE
, POOL_CHECK_READONLY
);
5410 zfs_ioctl_register_pool(ZFS_IOC_POOL_CREATE
, zfs_ioc_pool_create
,
5411 zfs_secpolicy_config
, B_TRUE
, POOL_CHECK_NONE
);
5412 zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_SCAN
,
5414 zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_UPGRADE
,
5415 zfs_ioc_pool_upgrade
);
5416 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_ADD
,
5418 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_REMOVE
,
5419 zfs_ioc_vdev_remove
);
5420 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SET_STATE
,
5421 zfs_ioc_vdev_set_state
);
5422 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_ATTACH
,
5423 zfs_ioc_vdev_attach
);
5424 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_DETACH
,
5425 zfs_ioc_vdev_detach
);
5426 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SETPATH
,
5427 zfs_ioc_vdev_setpath
);
5428 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SETFRU
,
5429 zfs_ioc_vdev_setfru
);
5430 zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_SET_PROPS
,
5431 zfs_ioc_pool_set_props
);
5432 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SPLIT
,
5433 zfs_ioc_vdev_split
);
5434 zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_REGUID
,
5435 zfs_ioc_pool_reguid
);
5437 zfs_ioctl_register_pool_meta(ZFS_IOC_POOL_CONFIGS
,
5438 zfs_ioc_pool_configs
, zfs_secpolicy_none
);
5439 zfs_ioctl_register_pool_meta(ZFS_IOC_POOL_TRYIMPORT
,
5440 zfs_ioc_pool_tryimport
, zfs_secpolicy_config
);
5441 zfs_ioctl_register_pool_meta(ZFS_IOC_INJECT_FAULT
,
5442 zfs_ioc_inject_fault
, zfs_secpolicy_inject
);
5443 zfs_ioctl_register_pool_meta(ZFS_IOC_CLEAR_FAULT
,
5444 zfs_ioc_clear_fault
, zfs_secpolicy_inject
);
5445 zfs_ioctl_register_pool_meta(ZFS_IOC_INJECT_LIST_NEXT
,
5446 zfs_ioc_inject_list_next
, zfs_secpolicy_inject
);
5449 * pool destroy, and export don't log the history as part of
5450 * zfsdev_ioctl, but rather zfs_ioc_pool_export
5451 * does the logging of those commands.
5453 zfs_ioctl_register_pool(ZFS_IOC_POOL_DESTROY
, zfs_ioc_pool_destroy
,
5454 zfs_secpolicy_config
, B_FALSE
, POOL_CHECK_NONE
);
5455 zfs_ioctl_register_pool(ZFS_IOC_POOL_EXPORT
, zfs_ioc_pool_export
,
5456 zfs_secpolicy_config
, B_FALSE
, POOL_CHECK_NONE
);
5458 zfs_ioctl_register_pool(ZFS_IOC_POOL_STATS
, zfs_ioc_pool_stats
,
5459 zfs_secpolicy_read
, B_FALSE
, POOL_CHECK_NONE
);
5460 zfs_ioctl_register_pool(ZFS_IOC_POOL_GET_PROPS
, zfs_ioc_pool_get_props
,
5461 zfs_secpolicy_read
, B_FALSE
, POOL_CHECK_NONE
);
5463 zfs_ioctl_register_pool(ZFS_IOC_ERROR_LOG
, zfs_ioc_error_log
,
5464 zfs_secpolicy_inject
, B_FALSE
, POOL_CHECK_SUSPENDED
);
5465 zfs_ioctl_register_pool(ZFS_IOC_DSOBJ_TO_DSNAME
,
5466 zfs_ioc_dsobj_to_dsname
,
5467 zfs_secpolicy_diff
, B_FALSE
, POOL_CHECK_SUSPENDED
);
5468 zfs_ioctl_register_pool(ZFS_IOC_POOL_GET_HISTORY
,
5469 zfs_ioc_pool_get_history
,
5470 zfs_secpolicy_config
, B_FALSE
, POOL_CHECK_SUSPENDED
);
5472 zfs_ioctl_register_pool(ZFS_IOC_POOL_IMPORT
, zfs_ioc_pool_import
,
5473 zfs_secpolicy_config
, B_TRUE
, POOL_CHECK_NONE
);
5475 zfs_ioctl_register_pool(ZFS_IOC_CLEAR
, zfs_ioc_clear
,
5476 zfs_secpolicy_config
, B_TRUE
, POOL_CHECK_NONE
);
5477 zfs_ioctl_register_pool(ZFS_IOC_POOL_REOPEN
, zfs_ioc_pool_reopen
,
5478 zfs_secpolicy_config
, B_TRUE
, POOL_CHECK_SUSPENDED
);
5480 zfs_ioctl_register_dataset_read(ZFS_IOC_SPACE_WRITTEN
,
5481 zfs_ioc_space_written
);
5482 zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_RECVD_PROPS
,
5483 zfs_ioc_objset_recvd_props
);
5484 zfs_ioctl_register_dataset_read(ZFS_IOC_NEXT_OBJ
,
5486 zfs_ioctl_register_dataset_read(ZFS_IOC_GET_FSACL
,
5488 zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_STATS
,
5489 zfs_ioc_objset_stats
);
5490 zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_ZPLPROPS
,
5491 zfs_ioc_objset_zplprops
);
5492 zfs_ioctl_register_dataset_read(ZFS_IOC_DATASET_LIST_NEXT
,
5493 zfs_ioc_dataset_list_next
);
5494 zfs_ioctl_register_dataset_read(ZFS_IOC_SNAPSHOT_LIST_NEXT
,
5495 zfs_ioc_snapshot_list_next
);
5496 zfs_ioctl_register_dataset_read(ZFS_IOC_SEND_PROGRESS
,
5497 zfs_ioc_send_progress
);
5499 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_DIFF
,
5500 zfs_ioc_diff
, zfs_secpolicy_diff
);
5501 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_OBJ_TO_STATS
,
5502 zfs_ioc_obj_to_stats
, zfs_secpolicy_diff
);
5503 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_OBJ_TO_PATH
,
5504 zfs_ioc_obj_to_path
, zfs_secpolicy_diff
);
5505 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_USERSPACE_ONE
,
5506 zfs_ioc_userspace_one
, zfs_secpolicy_userspace_one
);
5507 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_USERSPACE_MANY
,
5508 zfs_ioc_userspace_many
, zfs_secpolicy_userspace_many
);
5509 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_SEND
,
5510 zfs_ioc_send
, zfs_secpolicy_send
);
5512 zfs_ioctl_register_dataset_modify(ZFS_IOC_SET_PROP
, zfs_ioc_set_prop
,
5513 zfs_secpolicy_none
);
5514 zfs_ioctl_register_dataset_modify(ZFS_IOC_DESTROY
, zfs_ioc_destroy
,
5515 zfs_secpolicy_destroy
);
5516 zfs_ioctl_register_dataset_modify(ZFS_IOC_RENAME
, zfs_ioc_rename
,
5517 zfs_secpolicy_rename
);
5518 zfs_ioctl_register_dataset_modify(ZFS_IOC_RECV
, zfs_ioc_recv
,
5519 zfs_secpolicy_recv
);
5520 zfs_ioctl_register_dataset_modify(ZFS_IOC_PROMOTE
, zfs_ioc_promote
,
5521 zfs_secpolicy_promote
);
5522 zfs_ioctl_register_dataset_modify(ZFS_IOC_INHERIT_PROP
,
5523 zfs_ioc_inherit_prop
, zfs_secpolicy_inherit_prop
);
5524 zfs_ioctl_register_dataset_modify(ZFS_IOC_SET_FSACL
, zfs_ioc_set_fsacl
,
5525 zfs_secpolicy_set_fsacl
);
5527 zfs_ioctl_register_dataset_nolog(ZFS_IOC_SHARE
, zfs_ioc_share
,
5528 zfs_secpolicy_share
, POOL_CHECK_NONE
);
5529 zfs_ioctl_register_dataset_nolog(ZFS_IOC_SMB_ACL
, zfs_ioc_smb_acl
,
5530 zfs_secpolicy_smb_acl
, POOL_CHECK_NONE
);
5531 zfs_ioctl_register_dataset_nolog(ZFS_IOC_USERSPACE_UPGRADE
,
5532 zfs_ioc_userspace_upgrade
, zfs_secpolicy_userspace_upgrade
,
5533 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
);
5534 zfs_ioctl_register_dataset_nolog(ZFS_IOC_TMP_SNAPSHOT
,
5535 zfs_ioc_tmp_snapshot
, zfs_secpolicy_tmp_snapshot
,
5536 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
);
5541 zfs_ioctl_register_legacy(ZFS_IOC_EVENTS_NEXT
, zfs_ioc_events_next
,
5542 zfs_secpolicy_config
, NO_NAME
, B_FALSE
, POOL_CHECK_NONE
);
5543 zfs_ioctl_register_legacy(ZFS_IOC_EVENTS_CLEAR
, zfs_ioc_events_clear
,
5544 zfs_secpolicy_config
, NO_NAME
, B_FALSE
, POOL_CHECK_NONE
);
5545 zfs_ioctl_register_legacy(ZFS_IOC_EVENTS_SEEK
, zfs_ioc_events_seek
,
5546 zfs_secpolicy_config
, NO_NAME
, B_FALSE
, POOL_CHECK_NONE
);
5550 pool_status_check(const char *name
, zfs_ioc_namecheck_t type
,
5551 zfs_ioc_poolcheck_t check
)
5556 ASSERT(type
== POOL_NAME
|| type
== DATASET_NAME
);
5558 if (check
& POOL_CHECK_NONE
)
5561 error
= spa_open(name
, &spa
, FTAG
);
5563 if ((check
& POOL_CHECK_SUSPENDED
) && spa_suspended(spa
))
5564 error
= SET_ERROR(EAGAIN
);
5565 else if ((check
& POOL_CHECK_READONLY
) && !spa_writeable(spa
))
5566 error
= SET_ERROR(EROFS
);
5567 spa_close(spa
, FTAG
);
5573 zfsdev_get_state_impl(minor_t minor
, enum zfsdev_state_type which
)
5577 for (zs
= zfsdev_state_list
; zs
!= NULL
; zs
= zs
->zs_next
) {
5578 if (zs
->zs_minor
== minor
) {
5582 return (zs
->zs_onexit
);
5584 return (zs
->zs_zevent
);
5595 zfsdev_get_state(minor_t minor
, enum zfsdev_state_type which
)
5599 ptr
= zfsdev_get_state_impl(minor
, which
);
5605 zfsdev_getminor(struct file
*filp
)
5607 ASSERT(filp
!= NULL
);
5608 ASSERT(filp
->private_data
!= NULL
);
5610 return (((zfsdev_state_t
*)filp
->private_data
)->zs_minor
);
5614 * Find a free minor number. The zfsdev_state_list is expected to
5615 * be short since it is only a list of currently open file handles.
5618 zfsdev_minor_alloc(void)
5620 static minor_t last_minor
= 0;
5623 ASSERT(MUTEX_HELD(&zfsdev_state_lock
));
5625 for (m
= last_minor
+ 1; m
!= last_minor
; m
++) {
5626 if (m
> ZFSDEV_MAX_MINOR
)
5628 if (zfsdev_get_state_impl(m
, ZST_ALL
) == NULL
) {
5638 zfsdev_state_init(struct file
*filp
)
5640 zfsdev_state_t
*zs
, *zsprev
= NULL
;
5642 boolean_t newzs
= B_FALSE
;
5644 ASSERT(MUTEX_HELD(&zfsdev_state_lock
));
5646 minor
= zfsdev_minor_alloc();
5648 return (SET_ERROR(ENXIO
));
5650 for (zs
= zfsdev_state_list
; zs
!= NULL
; zs
= zs
->zs_next
) {
5651 if (zs
->zs_minor
== -1)
5657 zs
= kmem_zalloc(sizeof (zfsdev_state_t
), KM_SLEEP
);
5662 filp
->private_data
= zs
;
5664 zfs_onexit_init((zfs_onexit_t
**)&zs
->zs_onexit
);
5665 zfs_zevent_init((zfs_zevent_t
**)&zs
->zs_zevent
);
5669 * In order to provide for lock-free concurrent read access
5670 * to the minor list in zfsdev_get_state_impl(), new entries
5671 * must be completely written before linking them into the
5672 * list whereas existing entries are already linked; the last
5673 * operation must be updating zs_minor (from -1 to the new
5677 zs
->zs_minor
= minor
;
5679 zsprev
->zs_next
= zs
;
5682 zs
->zs_minor
= minor
;
5689 zfsdev_state_destroy(struct file
*filp
)
5693 ASSERT(MUTEX_HELD(&zfsdev_state_lock
));
5694 ASSERT(filp
->private_data
!= NULL
);
5696 zs
= filp
->private_data
;
5698 zfs_onexit_destroy(zs
->zs_onexit
);
5699 zfs_zevent_destroy(zs
->zs_zevent
);
5705 zfsdev_open(struct inode
*ino
, struct file
*filp
)
5709 mutex_enter(&zfsdev_state_lock
);
5710 error
= zfsdev_state_init(filp
);
5711 mutex_exit(&zfsdev_state_lock
);
5717 zfsdev_release(struct inode
*ino
, struct file
*filp
)
5721 mutex_enter(&zfsdev_state_lock
);
5722 error
= zfsdev_state_destroy(filp
);
5723 mutex_exit(&zfsdev_state_lock
);
5729 zfsdev_ioctl(struct file
*filp
, unsigned cmd
, unsigned long arg
)
5733 int error
, rc
, flag
= 0;
5734 const zfs_ioc_vec_t
*vec
;
5735 char *saved_poolname
= NULL
;
5736 nvlist_t
*innvl
= NULL
;
5738 vecnum
= cmd
- ZFS_IOC_FIRST
;
5739 if (vecnum
>= sizeof (zfs_ioc_vec
) / sizeof (zfs_ioc_vec
[0]))
5740 return (-SET_ERROR(EINVAL
));
5741 vec
= &zfs_ioc_vec
[vecnum
];
5744 * The registered ioctl list may be sparse, verify that either
5745 * a normal or legacy handler are registered.
5747 if (vec
->zvec_func
== NULL
&& vec
->zvec_legacy_func
== NULL
)
5748 return (-SET_ERROR(EINVAL
));
5750 zc
= kmem_zalloc(sizeof (zfs_cmd_t
), KM_SLEEP
);
5752 error
= ddi_copyin((void *)arg
, zc
, sizeof (zfs_cmd_t
), flag
);
5754 error
= SET_ERROR(EFAULT
);
5758 zc
->zc_iflags
= flag
& FKIOCTL
;
5759 if (zc
->zc_nvlist_src_size
!= 0) {
5760 error
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
5761 zc
->zc_iflags
, &innvl
);
5767 * Ensure that all pool/dataset names are valid before we pass down to
5770 zc
->zc_name
[sizeof (zc
->zc_name
) - 1] = '\0';
5771 switch (vec
->zvec_namecheck
) {
5773 if (pool_namecheck(zc
->zc_name
, NULL
, NULL
) != 0)
5774 error
= SET_ERROR(EINVAL
);
5776 error
= pool_status_check(zc
->zc_name
,
5777 vec
->zvec_namecheck
, vec
->zvec_pool_check
);
5781 if (dataset_namecheck(zc
->zc_name
, NULL
, NULL
) != 0)
5782 error
= SET_ERROR(EINVAL
);
5784 error
= pool_status_check(zc
->zc_name
,
5785 vec
->zvec_namecheck
, vec
->zvec_pool_check
);
5793 if (error
== 0 && !(flag
& FKIOCTL
))
5794 error
= vec
->zvec_secpolicy(zc
, innvl
, CRED());
5799 /* legacy ioctls can modify zc_name */
5800 saved_poolname
= strdup(zc
->zc_name
);
5801 if (saved_poolname
== NULL
) {
5802 error
= SET_ERROR(ENOMEM
);
5805 saved_poolname
[strcspn(saved_poolname
, "/@#")] = '\0';
5808 if (vec
->zvec_func
!= NULL
) {
5812 nvlist_t
*lognv
= NULL
;
5814 ASSERT(vec
->zvec_legacy_func
== NULL
);
5817 * Add the innvl to the lognv before calling the func,
5818 * in case the func changes the innvl.
5820 if (vec
->zvec_allow_log
) {
5821 lognv
= fnvlist_alloc();
5822 fnvlist_add_string(lognv
, ZPOOL_HIST_IOCTL
,
5824 if (!nvlist_empty(innvl
)) {
5825 fnvlist_add_nvlist(lognv
, ZPOOL_HIST_INPUT_NVL
,
5830 outnvl
= fnvlist_alloc();
5831 error
= vec
->zvec_func(zc
->zc_name
, innvl
, outnvl
);
5833 if (error
== 0 && vec
->zvec_allow_log
&&
5834 spa_open(zc
->zc_name
, &spa
, FTAG
) == 0) {
5835 if (!nvlist_empty(outnvl
)) {
5836 fnvlist_add_nvlist(lognv
, ZPOOL_HIST_OUTPUT_NVL
,
5839 (void) spa_history_log_nvl(spa
, lognv
);
5840 spa_close(spa
, FTAG
);
5842 fnvlist_free(lognv
);
5844 if (!nvlist_empty(outnvl
) || zc
->zc_nvlist_dst_size
!= 0) {
5846 if (vec
->zvec_smush_outnvlist
) {
5847 smusherror
= nvlist_smush(outnvl
,
5848 zc
->zc_nvlist_dst_size
);
5850 if (smusherror
== 0)
5851 puterror
= put_nvlist(zc
, outnvl
);
5857 nvlist_free(outnvl
);
5859 error
= vec
->zvec_legacy_func(zc
);
5864 rc
= ddi_copyout(zc
, (void *)arg
, sizeof (zfs_cmd_t
), flag
);
5865 if (error
== 0 && rc
!= 0)
5866 error
= SET_ERROR(EFAULT
);
5867 if (error
== 0 && vec
->zvec_allow_log
) {
5868 char *s
= tsd_get(zfs_allow_log_key
);
5871 (void) tsd_set(zfs_allow_log_key
, saved_poolname
);
5873 if (saved_poolname
!= NULL
)
5874 strfree(saved_poolname
);
5877 kmem_free(zc
, sizeof (zfs_cmd_t
));
5881 #ifdef CONFIG_COMPAT
5883 zfsdev_compat_ioctl(struct file
*filp
, unsigned cmd
, unsigned long arg
)
5885 return (zfsdev_ioctl(filp
, cmd
, arg
));
5888 #define zfsdev_compat_ioctl NULL
5891 static const struct file_operations zfsdev_fops
= {
5892 .open
= zfsdev_open
,
5893 .release
= zfsdev_release
,
5894 .unlocked_ioctl
= zfsdev_ioctl
,
5895 .compat_ioctl
= zfsdev_compat_ioctl
,
5896 .owner
= THIS_MODULE
,
5899 static struct miscdevice zfs_misc
= {
5900 .minor
= MISC_DYNAMIC_MINOR
,
5902 .fops
= &zfsdev_fops
,
5910 mutex_init(&zfsdev_state_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
5911 zfsdev_state_list
= kmem_zalloc(sizeof (zfsdev_state_t
), KM_SLEEP
);
5912 zfsdev_state_list
->zs_minor
= -1;
5914 error
= misc_register(&zfs_misc
);
5916 printk(KERN_INFO
"ZFS: misc_register() failed %d\n", error
);
5927 zfsdev_state_t
*zs
, *zsprev
= NULL
;
5929 error
= misc_deregister(&zfs_misc
);
5931 printk(KERN_INFO
"ZFS: misc_deregister() failed %d\n", error
);
5933 mutex_destroy(&zfsdev_state_lock
);
5935 for (zs
= zfsdev_state_list
; zs
!= NULL
; zs
= zs
->zs_next
) {
5937 kmem_free(zsprev
, sizeof (zfsdev_state_t
));
5941 kmem_free(zsprev
, sizeof (zfsdev_state_t
));
5945 zfs_allow_log_destroy(void *arg
)
5947 char *poolname
= arg
;
5952 #define ZFS_DEBUG_STR " (DEBUG mode)"
5954 #define ZFS_DEBUG_STR ""
5962 spa_init(FREAD
| FWRITE
);
5965 if ((error
= zvol_init()) != 0)
5970 if ((error
= zfs_attach()) != 0)
5973 tsd_create(&zfs_fsyncer_key
, NULL
);
5974 tsd_create(&rrw_tsd_key
, rrw_tsd_destroy
);
5975 tsd_create(&zfs_allow_log_key
, zfs_allow_log_destroy
);
5977 printk(KERN_NOTICE
"ZFS: Loaded module v%s-%s%s, "
5978 "ZFS pool version %s, ZFS filesystem version %s\n",
5979 ZFS_META_VERSION
, ZFS_META_RELEASE
, ZFS_DEBUG_STR
,
5980 SPA_VERSION_STRING
, ZPL_VERSION_STRING
);
5981 #ifndef CONFIG_FS_POSIX_ACL
5982 printk(KERN_NOTICE
"ZFS: Posix ACLs disabled by kernel\n");
5983 #endif /* CONFIG_FS_POSIX_ACL */
5992 printk(KERN_NOTICE
"ZFS: Failed to Load ZFS Filesystem v%s-%s%s"
5993 ", rc = %d\n", ZFS_META_VERSION
, ZFS_META_RELEASE
,
5994 ZFS_DEBUG_STR
, error
);
6007 tsd_destroy(&zfs_fsyncer_key
);
6008 tsd_destroy(&rrw_tsd_key
);
6009 tsd_destroy(&zfs_allow_log_key
);
6011 printk(KERN_NOTICE
"ZFS: Unloaded module v%s-%s%s\n",
6012 ZFS_META_VERSION
, ZFS_META_RELEASE
, ZFS_DEBUG_STR
);
6018 spl_module_init(_init
);
6019 spl_module_exit(_fini
);
6021 MODULE_DESCRIPTION("ZFS");
6022 MODULE_AUTHOR(ZFS_META_AUTHOR
);
6023 MODULE_LICENSE(ZFS_META_LICENSE
);
6024 MODULE_VERSION(ZFS_META_VERSION
"-" ZFS_META_RELEASE
);
6025 #endif /* HAVE_SPL */