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 * Copyright 2015, OmniTI Computer Consulting, Inc. All rights reserved.
26 * Portions Copyright 2012 Pawel Jakub Dawidek <pawel@dawidek.net>
27 * Copyright (c) 2012, Joyent, Inc. All rights reserved.
28 * Copyright 2016 Nexenta Systems, Inc. All rights reserved.
29 * Copyright (c) 2014, Joyent, Inc. All rights reserved.
30 * Copyright (c) 2011, 2015 by Delphix. All rights reserved.
31 * Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
32 * Copyright (c) 2013 Steven Hartland. All rights reserved.
33 * Copyright (c) 2016 Actifio, Inc. All rights reserved.
39 * This file handles the ioctls to /dev/zfs, used for configuring ZFS storage
40 * pools and filesystems, e.g. with /sbin/zfs and /sbin/zpool.
42 * There are two ways that we handle ioctls: the legacy way where almost
43 * all of the logic is in the ioctl callback, and the new way where most
44 * of the marshalling is handled in the common entry point, zfsdev_ioctl().
46 * Non-legacy ioctls should be registered by calling
47 * zfs_ioctl_register() from zfs_ioctl_init(). The ioctl is invoked
48 * from userland by lzc_ioctl().
50 * The registration arguments are as follows:
53 * The name of the ioctl. This is used for history logging. If the
54 * ioctl returns successfully (the callback returns 0), and allow_log
55 * is true, then a history log entry will be recorded with the input &
56 * output nvlists. The log entry can be printed with "zpool history -i".
59 * The ioctl request number, which userland will pass to ioctl(2).
60 * The ioctl numbers can change from release to release, because
61 * the caller (libzfs) must be matched to the kernel.
63 * zfs_secpolicy_func_t *secpolicy
64 * This function will be called before the zfs_ioc_func_t, to
65 * determine if this operation is permitted. It should return EPERM
66 * on failure, and 0 on success. Checks include determining if the
67 * dataset is visible in this zone, and if the user has either all
68 * zfs privileges in the zone (SYS_MOUNT), or has been granted permission
69 * to do this operation on this dataset with "zfs allow".
71 * zfs_ioc_namecheck_t namecheck
72 * This specifies what to expect in the zfs_cmd_t:zc_name -- a pool
73 * name, a dataset name, or nothing. If the name is not well-formed,
74 * the ioctl will fail and the callback will not be called.
75 * Therefore, the callback can assume that the name is well-formed
76 * (e.g. is null-terminated, doesn't have more than one '@' character,
77 * doesn't have invalid characters).
79 * zfs_ioc_poolcheck_t pool_check
80 * This specifies requirements on the pool state. If the pool does
81 * not meet them (is suspended or is readonly), the ioctl will fail
82 * and the callback will not be called. If any checks are specified
83 * (i.e. it is not POOL_CHECK_NONE), namecheck must not be NO_NAME.
84 * Multiple checks can be or-ed together (e.g. POOL_CHECK_SUSPENDED |
85 * POOL_CHECK_READONLY).
87 * boolean_t smush_outnvlist
88 * If smush_outnvlist is true, then the output is presumed to be a
89 * list of errors, and it will be "smushed" down to fit into the
90 * caller's buffer, by removing some entries and replacing them with a
91 * single "N_MORE_ERRORS" entry indicating how many were removed. See
92 * nvlist_smush() for details. If smush_outnvlist is false, and the
93 * outnvlist does not fit into the userland-provided buffer, then the
94 * ioctl will fail with ENOMEM.
96 * zfs_ioc_func_t *func
97 * The callback function that will perform the operation.
99 * The callback should return 0 on success, or an error number on
100 * failure. If the function fails, the userland ioctl will return -1,
101 * and errno will be set to the callback's return value. The callback
102 * will be called with the following arguments:
105 * The name of the pool or dataset to operate on, from
106 * zfs_cmd_t:zc_name. The 'namecheck' argument specifies the
107 * expected type (pool, dataset, or none).
110 * The input nvlist, deserialized from zfs_cmd_t:zc_nvlist_src. Or
111 * NULL if no input nvlist was provided. Changes to this nvlist are
112 * ignored. If the input nvlist could not be deserialized, the
113 * ioctl will fail and the callback will not be called.
116 * The output nvlist, initially empty. The callback can fill it in,
117 * and it will be returned to userland by serializing it into
118 * zfs_cmd_t:zc_nvlist_dst. If it is non-empty, and serialization
119 * fails (e.g. because the caller didn't supply a large enough
120 * buffer), then the overall ioctl will fail. See the
121 * 'smush_nvlist' argument above for additional behaviors.
123 * There are two typical uses of the output nvlist:
124 * - To return state, e.g. property values. In this case,
125 * smush_outnvlist should be false. If the buffer was not large
126 * enough, the caller will reallocate a larger buffer and try
129 * - To return multiple errors from an ioctl which makes on-disk
130 * changes. In this case, smush_outnvlist should be true.
131 * Ioctls which make on-disk modifications should generally not
132 * use the outnvl if they succeed, because the caller can not
133 * distinguish between the operation failing, and
134 * deserialization failing.
137 #include <sys/types.h>
138 #include <sys/param.h>
139 #include <sys/errno.h>
142 #include <sys/modctl.h>
143 #include <sys/open.h>
144 #include <sys/file.h>
145 #include <sys/kmem.h>
146 #include <sys/conf.h>
147 #include <sys/cmn_err.h>
148 #include <sys/stat.h>
149 #include <sys/zfs_ioctl.h>
150 #include <sys/zfs_vfsops.h>
151 #include <sys/zfs_znode.h>
154 #include <sys/spa_impl.h>
155 #include <sys/vdev.h>
156 #include <sys/priv_impl.h>
158 #include <sys/dsl_dir.h>
159 #include <sys/dsl_dataset.h>
160 #include <sys/dsl_prop.h>
161 #include <sys/dsl_deleg.h>
162 #include <sys/dmu_objset.h>
163 #include <sys/dmu_impl.h>
164 #include <sys/dmu_tx.h>
166 #include <sys/sunddi.h>
167 #include <sys/sunldi.h>
168 #include <sys/policy.h>
169 #include <sys/zone.h>
170 #include <sys/nvpair.h>
171 #include <sys/pathname.h>
172 #include <sys/mount.h>
174 #include <sys/fs/zfs.h>
175 #include <sys/zfs_ctldir.h>
176 #include <sys/zfs_dir.h>
177 #include <sys/zfs_onexit.h>
178 #include <sys/zvol.h>
179 #include <sys/dsl_scan.h>
180 #include <sharefs/share.h>
181 #include <sys/fm/util.h>
183 #include <sys/dmu_send.h>
184 #include <sys/dsl_destroy.h>
185 #include <sys/dsl_bookmark.h>
186 #include <sys/dsl_userhold.h>
187 #include <sys/zfeature.h>
189 #include <linux/miscdevice.h>
190 #include <linux/slab.h>
192 #include "zfs_namecheck.h"
193 #include "zfs_prop.h"
194 #include "zfs_deleg.h"
195 #include "zfs_comutil.h"
198 * Limit maximum nvlist size. We don't want users passing in insane values
199 * for zc->zc_nvlist_src_size, since we will need to allocate that much memory.
201 #define MAX_NVLIST_SRC_SIZE KMALLOC_MAX_SIZE
203 kmutex_t zfsdev_state_lock
;
204 zfsdev_state_t
*zfsdev_state_list
;
206 extern void zfs_init(void);
207 extern void zfs_fini(void);
209 uint_t zfs_fsyncer_key
;
210 extern uint_t rrw_tsd_key
;
211 static uint_t zfs_allow_log_key
;
213 typedef int zfs_ioc_legacy_func_t(zfs_cmd_t
*);
214 typedef int zfs_ioc_func_t(const char *, nvlist_t
*, nvlist_t
*);
215 typedef int zfs_secpolicy_func_t(zfs_cmd_t
*, nvlist_t
*, cred_t
*);
221 } zfs_ioc_namecheck_t
;
224 POOL_CHECK_NONE
= 1 << 0,
225 POOL_CHECK_SUSPENDED
= 1 << 1,
226 POOL_CHECK_READONLY
= 1 << 2,
227 } zfs_ioc_poolcheck_t
;
229 typedef struct zfs_ioc_vec
{
230 zfs_ioc_legacy_func_t
*zvec_legacy_func
;
231 zfs_ioc_func_t
*zvec_func
;
232 zfs_secpolicy_func_t
*zvec_secpolicy
;
233 zfs_ioc_namecheck_t zvec_namecheck
;
234 boolean_t zvec_allow_log
;
235 zfs_ioc_poolcheck_t zvec_pool_check
;
236 boolean_t zvec_smush_outnvlist
;
237 const char *zvec_name
;
240 /* This array is indexed by zfs_userquota_prop_t */
241 static const char *userquota_perms
[] = {
242 ZFS_DELEG_PERM_USERUSED
,
243 ZFS_DELEG_PERM_USERQUOTA
,
244 ZFS_DELEG_PERM_GROUPUSED
,
245 ZFS_DELEG_PERM_GROUPQUOTA
,
248 static int zfs_ioc_userspace_upgrade(zfs_cmd_t
*zc
);
249 static int zfs_check_settable(const char *name
, nvpair_t
*property
,
251 static int zfs_check_clearable(char *dataset
, nvlist_t
*props
,
253 static int zfs_fill_zplprops_root(uint64_t, nvlist_t
*, nvlist_t
*,
255 int zfs_set_prop_nvlist(const char *, zprop_source_t
, nvlist_t
*, nvlist_t
*);
256 static int get_nvlist(uint64_t nvl
, uint64_t size
, int iflag
, nvlist_t
**nvp
);
259 history_str_free(char *buf
)
261 kmem_free(buf
, HIS_MAX_RECORD_LEN
);
265 history_str_get(zfs_cmd_t
*zc
)
269 if (zc
->zc_history
== 0)
272 buf
= kmem_alloc(HIS_MAX_RECORD_LEN
, KM_SLEEP
);
273 if (copyinstr((void *)(uintptr_t)zc
->zc_history
,
274 buf
, HIS_MAX_RECORD_LEN
, NULL
) != 0) {
275 history_str_free(buf
);
279 buf
[HIS_MAX_RECORD_LEN
-1] = '\0';
285 * Check to see if the named dataset is currently defined as bootable
288 zfs_is_bootfs(const char *name
)
292 if (dmu_objset_hold(name
, FTAG
, &os
) == 0) {
294 ret
= (dmu_objset_id(os
) == spa_bootfs(dmu_objset_spa(os
)));
295 dmu_objset_rele(os
, FTAG
);
302 * Return non-zero if the spa version is less than requested version.
305 zfs_earlier_version(const char *name
, int version
)
309 if (spa_open(name
, &spa
, FTAG
) == 0) {
310 if (spa_version(spa
) < version
) {
311 spa_close(spa
, FTAG
);
314 spa_close(spa
, FTAG
);
320 * Return TRUE if the ZPL version is less than requested version.
323 zpl_earlier_version(const char *name
, int version
)
326 boolean_t rc
= B_TRUE
;
328 if (dmu_objset_hold(name
, FTAG
, &os
) == 0) {
331 if (dmu_objset_type(os
) != DMU_OST_ZFS
) {
332 dmu_objset_rele(os
, FTAG
);
335 /* XXX reading from non-owned objset */
336 if (zfs_get_zplprop(os
, ZFS_PROP_VERSION
, &zplversion
) == 0)
337 rc
= zplversion
< version
;
338 dmu_objset_rele(os
, FTAG
);
344 zfs_log_history(zfs_cmd_t
*zc
)
349 if ((buf
= history_str_get(zc
)) == NULL
)
352 if (spa_open(zc
->zc_name
, &spa
, FTAG
) == 0) {
353 if (spa_version(spa
) >= SPA_VERSION_ZPOOL_HISTORY
)
354 (void) spa_history_log(spa
, buf
);
355 spa_close(spa
, FTAG
);
357 history_str_free(buf
);
361 * Policy for top-level read operations (list pools). Requires no privileges,
362 * and can be used in the local zone, as there is no associated dataset.
366 zfs_secpolicy_none(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
372 * Policy for dataset read operations (list children, get statistics). Requires
373 * no privileges, but must be visible in the local zone.
377 zfs_secpolicy_read(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
379 if (INGLOBALZONE(curproc
) ||
380 zone_dataset_visible(zc
->zc_name
, NULL
))
383 return (SET_ERROR(ENOENT
));
387 zfs_dozonecheck_impl(const char *dataset
, uint64_t zoned
, cred_t
*cr
)
392 * The dataset must be visible by this zone -- check this first
393 * so they don't see EPERM on something they shouldn't know about.
395 if (!INGLOBALZONE(curproc
) &&
396 !zone_dataset_visible(dataset
, &writable
))
397 return (SET_ERROR(ENOENT
));
399 if (INGLOBALZONE(curproc
)) {
401 * If the fs is zoned, only root can access it from the
404 if (secpolicy_zfs(cr
) && zoned
)
405 return (SET_ERROR(EPERM
));
408 * If we are in a local zone, the 'zoned' property must be set.
411 return (SET_ERROR(EPERM
));
413 /* must be writable by this zone */
415 return (SET_ERROR(EPERM
));
421 zfs_dozonecheck(const char *dataset
, cred_t
*cr
)
425 if (dsl_prop_get_integer(dataset
, "zoned", &zoned
, NULL
))
426 return (SET_ERROR(ENOENT
));
428 return (zfs_dozonecheck_impl(dataset
, zoned
, cr
));
432 zfs_dozonecheck_ds(const char *dataset
, dsl_dataset_t
*ds
, cred_t
*cr
)
436 if (dsl_prop_get_int_ds(ds
, "zoned", &zoned
))
437 return (SET_ERROR(ENOENT
));
439 return (zfs_dozonecheck_impl(dataset
, zoned
, cr
));
443 zfs_secpolicy_write_perms_ds(const char *name
, dsl_dataset_t
*ds
,
444 const char *perm
, cred_t
*cr
)
448 error
= zfs_dozonecheck_ds(name
, ds
, cr
);
450 error
= secpolicy_zfs(cr
);
452 error
= dsl_deleg_access_impl(ds
, perm
, cr
);
458 zfs_secpolicy_write_perms(const char *name
, const char *perm
, cred_t
*cr
)
464 error
= dsl_pool_hold(name
, FTAG
, &dp
);
468 error
= dsl_dataset_hold(dp
, name
, FTAG
, &ds
);
470 dsl_pool_rele(dp
, FTAG
);
474 error
= zfs_secpolicy_write_perms_ds(name
, ds
, perm
, cr
);
476 dsl_dataset_rele(ds
, FTAG
);
477 dsl_pool_rele(dp
, FTAG
);
482 * Policy for setting the security label property.
484 * Returns 0 for success, non-zero for access and other errors.
487 zfs_set_slabel_policy(const char *name
, char *strval
, cred_t
*cr
)
490 char ds_hexsl
[MAXNAMELEN
];
491 bslabel_t ds_sl
, new_sl
;
492 boolean_t new_default
= FALSE
;
494 int needed_priv
= -1;
497 /* First get the existing dataset label. */
498 error
= dsl_prop_get(name
, zfs_prop_to_name(ZFS_PROP_MLSLABEL
),
499 1, sizeof (ds_hexsl
), &ds_hexsl
, NULL
);
501 return (SET_ERROR(EPERM
));
503 if (strcasecmp(strval
, ZFS_MLSLABEL_DEFAULT
) == 0)
506 /* The label must be translatable */
507 if (!new_default
&& (hexstr_to_label(strval
, &new_sl
) != 0))
508 return (SET_ERROR(EINVAL
));
511 * In a non-global zone, disallow attempts to set a label that
512 * doesn't match that of the zone; otherwise no other checks
515 if (!INGLOBALZONE(curproc
)) {
516 if (new_default
|| !blequal(&new_sl
, CR_SL(CRED())))
517 return (SET_ERROR(EPERM
));
522 * For global-zone datasets (i.e., those whose zoned property is
523 * "off", verify that the specified new label is valid for the
526 if (dsl_prop_get_integer(name
,
527 zfs_prop_to_name(ZFS_PROP_ZONED
), &zoned
, NULL
))
528 return (SET_ERROR(EPERM
));
530 if (zfs_check_global_label(name
, strval
) != 0)
531 return (SET_ERROR(EPERM
));
535 * If the existing dataset label is nondefault, check if the
536 * dataset is mounted (label cannot be changed while mounted).
537 * Get the zfs_sb_t; if there isn't one, then the dataset isn't
538 * mounted (or isn't a dataset, doesn't exist, ...).
540 if (strcasecmp(ds_hexsl
, ZFS_MLSLABEL_DEFAULT
) != 0) {
542 static char *setsl_tag
= "setsl_tag";
545 * Try to own the dataset; abort if there is any error,
546 * (e.g., already mounted, in use, or other error).
548 error
= dmu_objset_own(name
, DMU_OST_ZFS
, B_TRUE
,
551 return (SET_ERROR(EPERM
));
553 dmu_objset_disown(os
, setsl_tag
);
556 needed_priv
= PRIV_FILE_DOWNGRADE_SL
;
560 if (hexstr_to_label(strval
, &new_sl
) != 0)
561 return (SET_ERROR(EPERM
));
563 if (blstrictdom(&ds_sl
, &new_sl
))
564 needed_priv
= PRIV_FILE_DOWNGRADE_SL
;
565 else if (blstrictdom(&new_sl
, &ds_sl
))
566 needed_priv
= PRIV_FILE_UPGRADE_SL
;
568 /* dataset currently has a default label */
570 needed_priv
= PRIV_FILE_UPGRADE_SL
;
574 if (needed_priv
!= -1)
575 return (PRIV_POLICY(cr
, needed_priv
, B_FALSE
, EPERM
, NULL
));
579 #endif /* HAVE_MLSLABEL */
583 zfs_secpolicy_setprop(const char *dsname
, zfs_prop_t prop
, nvpair_t
*propval
,
589 * Check permissions for special properties.
596 * Disallow setting of 'zoned' from within a local zone.
598 if (!INGLOBALZONE(curproc
))
599 return (SET_ERROR(EPERM
));
603 case ZFS_PROP_FILESYSTEM_LIMIT
:
604 case ZFS_PROP_SNAPSHOT_LIMIT
:
605 if (!INGLOBALZONE(curproc
)) {
607 char setpoint
[ZFS_MAX_DATASET_NAME_LEN
];
609 * Unprivileged users are allowed to modify the
610 * limit on things *under* (ie. contained by)
611 * the thing they own.
613 if (dsl_prop_get_integer(dsname
, "zoned", &zoned
,
615 return (SET_ERROR(EPERM
));
616 if (!zoned
|| strlen(dsname
) <= strlen(setpoint
))
617 return (SET_ERROR(EPERM
));
621 case ZFS_PROP_MLSLABEL
:
622 if (!is_system_labeled())
623 return (SET_ERROR(EPERM
));
625 if (nvpair_value_string(propval
, &strval
) == 0) {
628 err
= zfs_set_slabel_policy(dsname
, strval
, CRED());
635 return (zfs_secpolicy_write_perms(dsname
, zfs_prop_to_name(prop
), cr
));
640 zfs_secpolicy_set_fsacl(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
644 error
= zfs_dozonecheck(zc
->zc_name
, cr
);
649 * permission to set permissions will be evaluated later in
650 * dsl_deleg_can_allow()
657 zfs_secpolicy_rollback(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
659 return (zfs_secpolicy_write_perms(zc
->zc_name
,
660 ZFS_DELEG_PERM_ROLLBACK
, cr
));
665 zfs_secpolicy_send(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
673 * Generate the current snapshot name from the given objsetid, then
674 * use that name for the secpolicy/zone checks.
676 cp
= strchr(zc
->zc_name
, '@');
678 return (SET_ERROR(EINVAL
));
679 error
= dsl_pool_hold(zc
->zc_name
, FTAG
, &dp
);
683 error
= dsl_dataset_hold_obj(dp
, zc
->zc_sendobj
, FTAG
, &ds
);
685 dsl_pool_rele(dp
, FTAG
);
689 dsl_dataset_name(ds
, zc
->zc_name
);
691 error
= zfs_secpolicy_write_perms_ds(zc
->zc_name
, ds
,
692 ZFS_DELEG_PERM_SEND
, cr
);
693 dsl_dataset_rele(ds
, FTAG
);
694 dsl_pool_rele(dp
, FTAG
);
701 zfs_secpolicy_send_new(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
703 return (zfs_secpolicy_write_perms(zc
->zc_name
,
704 ZFS_DELEG_PERM_SEND
, cr
));
707 #ifdef HAVE_SMB_SHARE
710 zfs_secpolicy_deleg_share(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
715 if ((error
= lookupname(zc
->zc_value
, UIO_SYSSPACE
,
716 NO_FOLLOW
, NULL
, &vp
)) != 0)
719 /* Now make sure mntpnt and dataset are ZFS */
721 if (vp
->v_vfsp
->vfs_fstype
!= zfsfstype
||
722 (strcmp((char *)refstr_value(vp
->v_vfsp
->vfs_resource
),
723 zc
->zc_name
) != 0)) {
725 return (SET_ERROR(EPERM
));
729 return (dsl_deleg_access(zc
->zc_name
,
730 ZFS_DELEG_PERM_SHARE
, cr
));
732 #endif /* HAVE_SMB_SHARE */
735 zfs_secpolicy_share(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
737 #ifdef HAVE_SMB_SHARE
738 if (!INGLOBALZONE(curproc
))
739 return (SET_ERROR(EPERM
));
741 if (secpolicy_nfs(cr
) == 0) {
744 return (zfs_secpolicy_deleg_share(zc
, innvl
, cr
));
747 return (SET_ERROR(ENOTSUP
));
748 #endif /* HAVE_SMB_SHARE */
752 zfs_secpolicy_smb_acl(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
754 #ifdef HAVE_SMB_SHARE
755 if (!INGLOBALZONE(curproc
))
756 return (SET_ERROR(EPERM
));
758 if (secpolicy_smb(cr
) == 0) {
761 return (zfs_secpolicy_deleg_share(zc
, innvl
, cr
));
764 return (SET_ERROR(ENOTSUP
));
765 #endif /* HAVE_SMB_SHARE */
769 zfs_get_parent(const char *datasetname
, char *parent
, int parentsize
)
774 * Remove the @bla or /bla from the end of the name to get the parent.
776 (void) strncpy(parent
, datasetname
, parentsize
);
777 cp
= strrchr(parent
, '@');
781 cp
= strrchr(parent
, '/');
783 return (SET_ERROR(ENOENT
));
791 zfs_secpolicy_destroy_perms(const char *name
, cred_t
*cr
)
795 if ((error
= zfs_secpolicy_write_perms(name
,
796 ZFS_DELEG_PERM_MOUNT
, cr
)) != 0)
799 return (zfs_secpolicy_write_perms(name
, ZFS_DELEG_PERM_DESTROY
, cr
));
804 zfs_secpolicy_destroy(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
806 return (zfs_secpolicy_destroy_perms(zc
->zc_name
, cr
));
810 * Destroying snapshots with delegated permissions requires
811 * descendant mount and destroy permissions.
815 zfs_secpolicy_destroy_snaps(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
818 nvpair_t
*pair
, *nextpair
;
821 if (nvlist_lookup_nvlist(innvl
, "snaps", &snaps
) != 0)
822 return (SET_ERROR(EINVAL
));
823 for (pair
= nvlist_next_nvpair(snaps
, NULL
); pair
!= NULL
;
825 nextpair
= nvlist_next_nvpair(snaps
, pair
);
826 error
= zfs_secpolicy_destroy_perms(nvpair_name(pair
), cr
);
827 if (error
== ENOENT
) {
829 * Ignore any snapshots that don't exist (we consider
830 * them "already destroyed"). Remove the name from the
831 * nvl here in case the snapshot is created between
832 * now and when we try to destroy it (in which case
833 * we don't want to destroy it since we haven't
834 * checked for permission).
836 fnvlist_remove_nvpair(snaps
, pair
);
847 zfs_secpolicy_rename_perms(const char *from
, const char *to
, cred_t
*cr
)
849 char parentname
[ZFS_MAX_DATASET_NAME_LEN
];
852 if ((error
= zfs_secpolicy_write_perms(from
,
853 ZFS_DELEG_PERM_RENAME
, cr
)) != 0)
856 if ((error
= zfs_secpolicy_write_perms(from
,
857 ZFS_DELEG_PERM_MOUNT
, cr
)) != 0)
860 if ((error
= zfs_get_parent(to
, parentname
,
861 sizeof (parentname
))) != 0)
864 if ((error
= zfs_secpolicy_write_perms(parentname
,
865 ZFS_DELEG_PERM_CREATE
, cr
)) != 0)
868 if ((error
= zfs_secpolicy_write_perms(parentname
,
869 ZFS_DELEG_PERM_MOUNT
, cr
)) != 0)
877 zfs_secpolicy_rename(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
879 return (zfs_secpolicy_rename_perms(zc
->zc_name
, zc
->zc_value
, cr
));
884 zfs_secpolicy_promote(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
887 dsl_dataset_t
*clone
;
890 error
= zfs_secpolicy_write_perms(zc
->zc_name
,
891 ZFS_DELEG_PERM_PROMOTE
, cr
);
895 error
= dsl_pool_hold(zc
->zc_name
, FTAG
, &dp
);
899 error
= dsl_dataset_hold(dp
, zc
->zc_name
, FTAG
, &clone
);
902 char parentname
[ZFS_MAX_DATASET_NAME_LEN
];
903 dsl_dataset_t
*origin
= NULL
;
907 error
= dsl_dataset_hold_obj(dd
->dd_pool
,
908 dsl_dir_phys(dd
)->dd_origin_obj
, FTAG
, &origin
);
910 dsl_dataset_rele(clone
, FTAG
);
911 dsl_pool_rele(dp
, FTAG
);
915 error
= zfs_secpolicy_write_perms_ds(zc
->zc_name
, clone
,
916 ZFS_DELEG_PERM_MOUNT
, cr
);
918 dsl_dataset_name(origin
, parentname
);
920 error
= zfs_secpolicy_write_perms_ds(parentname
, origin
,
921 ZFS_DELEG_PERM_PROMOTE
, cr
);
923 dsl_dataset_rele(clone
, FTAG
);
924 dsl_dataset_rele(origin
, FTAG
);
926 dsl_pool_rele(dp
, FTAG
);
932 zfs_secpolicy_recv(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
936 if ((error
= zfs_secpolicy_write_perms(zc
->zc_name
,
937 ZFS_DELEG_PERM_RECEIVE
, cr
)) != 0)
940 if ((error
= zfs_secpolicy_write_perms(zc
->zc_name
,
941 ZFS_DELEG_PERM_MOUNT
, cr
)) != 0)
944 return (zfs_secpolicy_write_perms(zc
->zc_name
,
945 ZFS_DELEG_PERM_CREATE
, cr
));
950 zfs_secpolicy_recv_new(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
952 return (zfs_secpolicy_recv(zc
, innvl
, cr
));
956 zfs_secpolicy_snapshot_perms(const char *name
, cred_t
*cr
)
958 return (zfs_secpolicy_write_perms(name
,
959 ZFS_DELEG_PERM_SNAPSHOT
, cr
));
963 * Check for permission to create each snapshot in the nvlist.
967 zfs_secpolicy_snapshot(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
973 if (nvlist_lookup_nvlist(innvl
, "snaps", &snaps
) != 0)
974 return (SET_ERROR(EINVAL
));
975 for (pair
= nvlist_next_nvpair(snaps
, NULL
); pair
!= NULL
;
976 pair
= nvlist_next_nvpair(snaps
, pair
)) {
977 char *name
= nvpair_name(pair
);
978 char *atp
= strchr(name
, '@');
981 error
= SET_ERROR(EINVAL
);
985 error
= zfs_secpolicy_snapshot_perms(name
, cr
);
994 * Check for permission to create each snapshot in the nvlist.
998 zfs_secpolicy_bookmark(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1003 for (pair
= nvlist_next_nvpair(innvl
, NULL
);
1004 pair
!= NULL
; pair
= nvlist_next_nvpair(innvl
, pair
)) {
1005 char *name
= nvpair_name(pair
);
1006 char *hashp
= strchr(name
, '#');
1008 if (hashp
== NULL
) {
1009 error
= SET_ERROR(EINVAL
);
1013 error
= zfs_secpolicy_write_perms(name
,
1014 ZFS_DELEG_PERM_BOOKMARK
, cr
);
1024 zfs_secpolicy_destroy_bookmarks(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1026 nvpair_t
*pair
, *nextpair
;
1029 for (pair
= nvlist_next_nvpair(innvl
, NULL
); pair
!= NULL
;
1031 char *name
= nvpair_name(pair
);
1032 char *hashp
= strchr(name
, '#');
1033 nextpair
= nvlist_next_nvpair(innvl
, pair
);
1035 if (hashp
== NULL
) {
1036 error
= SET_ERROR(EINVAL
);
1041 error
= zfs_secpolicy_write_perms(name
,
1042 ZFS_DELEG_PERM_DESTROY
, cr
);
1044 if (error
== ENOENT
) {
1046 * Ignore any filesystems that don't exist (we consider
1047 * their bookmarks "already destroyed"). Remove
1048 * the name from the nvl here in case the filesystem
1049 * is created between now and when we try to destroy
1050 * the bookmark (in which case we don't want to
1051 * destroy it since we haven't checked for permission).
1053 fnvlist_remove_nvpair(innvl
, pair
);
1065 zfs_secpolicy_log_history(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1068 * Even root must have a proper TSD so that we know what pool
1071 if (tsd_get(zfs_allow_log_key
) == NULL
)
1072 return (SET_ERROR(EPERM
));
1077 zfs_secpolicy_create_clone(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1079 char parentname
[ZFS_MAX_DATASET_NAME_LEN
];
1083 if ((error
= zfs_get_parent(zc
->zc_name
, parentname
,
1084 sizeof (parentname
))) != 0)
1087 if (nvlist_lookup_string(innvl
, "origin", &origin
) == 0 &&
1088 (error
= zfs_secpolicy_write_perms(origin
,
1089 ZFS_DELEG_PERM_CLONE
, cr
)) != 0)
1092 if ((error
= zfs_secpolicy_write_perms(parentname
,
1093 ZFS_DELEG_PERM_CREATE
, cr
)) != 0)
1096 return (zfs_secpolicy_write_perms(parentname
,
1097 ZFS_DELEG_PERM_MOUNT
, cr
));
1101 * Policy for pool operations - create/destroy pools, add vdevs, etc. Requires
1102 * SYS_CONFIG privilege, which is not available in a local zone.
1106 zfs_secpolicy_config(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1108 if (secpolicy_sys_config(cr
, B_FALSE
) != 0)
1109 return (SET_ERROR(EPERM
));
1115 * Policy for object to name lookups.
1119 zfs_secpolicy_diff(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1123 if ((error
= secpolicy_sys_config(cr
, B_FALSE
)) == 0)
1126 error
= zfs_secpolicy_write_perms(zc
->zc_name
, ZFS_DELEG_PERM_DIFF
, cr
);
1131 * Policy for fault injection. Requires all privileges.
1135 zfs_secpolicy_inject(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1137 return (secpolicy_zinject(cr
));
1142 zfs_secpolicy_inherit_prop(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1144 zfs_prop_t prop
= zfs_name_to_prop(zc
->zc_value
);
1146 if (prop
== ZPROP_INVAL
) {
1147 if (!zfs_prop_user(zc
->zc_value
))
1148 return (SET_ERROR(EINVAL
));
1149 return (zfs_secpolicy_write_perms(zc
->zc_name
,
1150 ZFS_DELEG_PERM_USERPROP
, cr
));
1152 return (zfs_secpolicy_setprop(zc
->zc_name
, prop
,
1158 zfs_secpolicy_userspace_one(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1160 int err
= zfs_secpolicy_read(zc
, innvl
, cr
);
1164 if (zc
->zc_objset_type
>= ZFS_NUM_USERQUOTA_PROPS
)
1165 return (SET_ERROR(EINVAL
));
1167 if (zc
->zc_value
[0] == 0) {
1169 * They are asking about a posix uid/gid. If it's
1170 * themself, allow it.
1172 if (zc
->zc_objset_type
== ZFS_PROP_USERUSED
||
1173 zc
->zc_objset_type
== ZFS_PROP_USERQUOTA
) {
1174 if (zc
->zc_guid
== crgetuid(cr
))
1177 if (groupmember(zc
->zc_guid
, cr
))
1182 return (zfs_secpolicy_write_perms(zc
->zc_name
,
1183 userquota_perms
[zc
->zc_objset_type
], cr
));
1187 zfs_secpolicy_userspace_many(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1189 int err
= zfs_secpolicy_read(zc
, innvl
, cr
);
1193 if (zc
->zc_objset_type
>= ZFS_NUM_USERQUOTA_PROPS
)
1194 return (SET_ERROR(EINVAL
));
1196 return (zfs_secpolicy_write_perms(zc
->zc_name
,
1197 userquota_perms
[zc
->zc_objset_type
], cr
));
1202 zfs_secpolicy_userspace_upgrade(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1204 return (zfs_secpolicy_setprop(zc
->zc_name
, ZFS_PROP_VERSION
,
1210 zfs_secpolicy_hold(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1216 error
= nvlist_lookup_nvlist(innvl
, "holds", &holds
);
1218 return (SET_ERROR(EINVAL
));
1220 for (pair
= nvlist_next_nvpair(holds
, NULL
); pair
!= NULL
;
1221 pair
= nvlist_next_nvpair(holds
, pair
)) {
1222 char fsname
[ZFS_MAX_DATASET_NAME_LEN
];
1223 error
= dmu_fsname(nvpair_name(pair
), fsname
);
1226 error
= zfs_secpolicy_write_perms(fsname
,
1227 ZFS_DELEG_PERM_HOLD
, cr
);
1236 zfs_secpolicy_release(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1241 for (pair
= nvlist_next_nvpair(innvl
, NULL
); pair
!= NULL
;
1242 pair
= nvlist_next_nvpair(innvl
, pair
)) {
1243 char fsname
[ZFS_MAX_DATASET_NAME_LEN
];
1244 error
= dmu_fsname(nvpair_name(pair
), fsname
);
1247 error
= zfs_secpolicy_write_perms(fsname
,
1248 ZFS_DELEG_PERM_RELEASE
, cr
);
1256 * Policy for allowing temporary snapshots to be taken or released
1259 zfs_secpolicy_tmp_snapshot(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1262 * A temporary snapshot is the same as a snapshot,
1263 * hold, destroy and release all rolled into one.
1264 * Delegated diff alone is sufficient that we allow this.
1268 if ((error
= zfs_secpolicy_write_perms(zc
->zc_name
,
1269 ZFS_DELEG_PERM_DIFF
, cr
)) == 0)
1272 error
= zfs_secpolicy_snapshot_perms(zc
->zc_name
, cr
);
1274 error
= zfs_secpolicy_hold(zc
, innvl
, cr
);
1276 error
= zfs_secpolicy_release(zc
, innvl
, cr
);
1278 error
= zfs_secpolicy_destroy(zc
, innvl
, cr
);
1283 * Returns the nvlist as specified by the user in the zfs_cmd_t.
1286 get_nvlist(uint64_t nvl
, uint64_t size
, int iflag
, nvlist_t
**nvp
)
1290 nvlist_t
*list
= NULL
;
1293 * Read in and unpack the user-supplied nvlist.
1296 return (SET_ERROR(EINVAL
));
1298 packed
= vmem_alloc(size
, KM_SLEEP
);
1300 if ((error
= ddi_copyin((void *)(uintptr_t)nvl
, packed
, size
,
1302 vmem_free(packed
, size
);
1303 return (SET_ERROR(EFAULT
));
1306 if ((error
= nvlist_unpack(packed
, size
, &list
, 0)) != 0) {
1307 vmem_free(packed
, size
);
1311 vmem_free(packed
, size
);
1318 * Reduce the size of this nvlist until it can be serialized in 'max' bytes.
1319 * Entries will be removed from the end of the nvlist, and one int32 entry
1320 * named "N_MORE_ERRORS" will be added indicating how many entries were
1324 nvlist_smush(nvlist_t
*errors
, size_t max
)
1328 size
= fnvlist_size(errors
);
1331 nvpair_t
*more_errors
;
1335 return (SET_ERROR(ENOMEM
));
1337 fnvlist_add_int32(errors
, ZPROP_N_MORE_ERRORS
, 0);
1338 more_errors
= nvlist_prev_nvpair(errors
, NULL
);
1341 nvpair_t
*pair
= nvlist_prev_nvpair(errors
,
1343 fnvlist_remove_nvpair(errors
, pair
);
1345 size
= fnvlist_size(errors
);
1346 } while (size
> max
);
1348 fnvlist_remove_nvpair(errors
, more_errors
);
1349 fnvlist_add_int32(errors
, ZPROP_N_MORE_ERRORS
, n
);
1350 ASSERT3U(fnvlist_size(errors
), <=, max
);
1357 put_nvlist(zfs_cmd_t
*zc
, nvlist_t
*nvl
)
1359 char *packed
= NULL
;
1363 size
= fnvlist_size(nvl
);
1365 if (size
> zc
->zc_nvlist_dst_size
) {
1366 error
= SET_ERROR(ENOMEM
);
1368 packed
= fnvlist_pack(nvl
, &size
);
1369 if (ddi_copyout(packed
, (void *)(uintptr_t)zc
->zc_nvlist_dst
,
1370 size
, zc
->zc_iflags
) != 0)
1371 error
= SET_ERROR(EFAULT
);
1372 fnvlist_pack_free(packed
, size
);
1375 zc
->zc_nvlist_dst_size
= size
;
1376 zc
->zc_nvlist_dst_filled
= B_TRUE
;
1381 get_zfs_sb(const char *dsname
, zfs_sb_t
**zsbp
)
1386 error
= dmu_objset_hold(dsname
, FTAG
, &os
);
1389 if (dmu_objset_type(os
) != DMU_OST_ZFS
) {
1390 dmu_objset_rele(os
, FTAG
);
1391 return (SET_ERROR(EINVAL
));
1394 mutex_enter(&os
->os_user_ptr_lock
);
1395 *zsbp
= dmu_objset_get_user(os
);
1396 /* bump s_active only when non-zero to prevent umount race */
1397 if (*zsbp
== NULL
|| (*zsbp
)->z_sb
== NULL
||
1398 !atomic_inc_not_zero(&((*zsbp
)->z_sb
->s_active
))) {
1399 error
= SET_ERROR(ESRCH
);
1401 mutex_exit(&os
->os_user_ptr_lock
);
1402 dmu_objset_rele(os
, FTAG
);
1407 * Find a zfs_sb_t for a mounted filesystem, or create our own, in which
1408 * case its z_sb will be NULL, and it will be opened as the owner.
1409 * If 'writer' is set, the z_teardown_lock will be held for RW_WRITER,
1410 * which prevents all inode ops from running.
1413 zfs_sb_hold(const char *name
, void *tag
, zfs_sb_t
**zsbp
, boolean_t writer
)
1417 if (get_zfs_sb(name
, zsbp
) != 0)
1418 error
= zfs_sb_create(name
, NULL
, zsbp
);
1420 rrm_enter(&(*zsbp
)->z_teardown_lock
, (writer
) ? RW_WRITER
:
1422 if ((*zsbp
)->z_unmounted
) {
1424 * XXX we could probably try again, since the unmounting
1425 * thread should be just about to disassociate the
1426 * objset from the zsb.
1428 rrm_exit(&(*zsbp
)->z_teardown_lock
, tag
);
1429 return (SET_ERROR(EBUSY
));
1436 zfs_sb_rele(zfs_sb_t
*zsb
, void *tag
)
1438 rrm_exit(&zsb
->z_teardown_lock
, tag
);
1441 deactivate_super(zsb
->z_sb
);
1443 dmu_objset_disown(zsb
->z_os
, zsb
);
1449 zfs_ioc_pool_create(zfs_cmd_t
*zc
)
1452 nvlist_t
*config
, *props
= NULL
;
1453 nvlist_t
*rootprops
= NULL
;
1454 nvlist_t
*zplprops
= NULL
;
1456 if ((error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1457 zc
->zc_iflags
, &config
)))
1460 if (zc
->zc_nvlist_src_size
!= 0 && (error
=
1461 get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
1462 zc
->zc_iflags
, &props
))) {
1463 nvlist_free(config
);
1468 nvlist_t
*nvl
= NULL
;
1469 uint64_t version
= SPA_VERSION
;
1471 (void) nvlist_lookup_uint64(props
,
1472 zpool_prop_to_name(ZPOOL_PROP_VERSION
), &version
);
1473 if (!SPA_VERSION_IS_SUPPORTED(version
)) {
1474 error
= SET_ERROR(EINVAL
);
1475 goto pool_props_bad
;
1477 (void) nvlist_lookup_nvlist(props
, ZPOOL_ROOTFS_PROPS
, &nvl
);
1479 error
= nvlist_dup(nvl
, &rootprops
, KM_SLEEP
);
1481 nvlist_free(config
);
1485 (void) nvlist_remove_all(props
, ZPOOL_ROOTFS_PROPS
);
1487 VERIFY(nvlist_alloc(&zplprops
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
1488 error
= zfs_fill_zplprops_root(version
, rootprops
,
1491 goto pool_props_bad
;
1494 error
= spa_create(zc
->zc_name
, config
, props
, zplprops
);
1497 * Set the remaining root properties
1499 if (!error
&& (error
= zfs_set_prop_nvlist(zc
->zc_name
,
1500 ZPROP_SRC_LOCAL
, rootprops
, NULL
)) != 0)
1501 (void) spa_destroy(zc
->zc_name
);
1504 nvlist_free(rootprops
);
1505 nvlist_free(zplprops
);
1506 nvlist_free(config
);
1513 zfs_ioc_pool_destroy(zfs_cmd_t
*zc
)
1516 zfs_log_history(zc
);
1517 error
= spa_destroy(zc
->zc_name
);
1523 zfs_ioc_pool_import(zfs_cmd_t
*zc
)
1525 nvlist_t
*config
, *props
= NULL
;
1529 if ((error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1530 zc
->zc_iflags
, &config
)) != 0)
1533 if (zc
->zc_nvlist_src_size
!= 0 && (error
=
1534 get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
1535 zc
->zc_iflags
, &props
))) {
1536 nvlist_free(config
);
1540 if (nvlist_lookup_uint64(config
, ZPOOL_CONFIG_POOL_GUID
, &guid
) != 0 ||
1541 guid
!= zc
->zc_guid
)
1542 error
= SET_ERROR(EINVAL
);
1544 error
= spa_import(zc
->zc_name
, config
, props
, zc
->zc_cookie
);
1546 if (zc
->zc_nvlist_dst
!= 0) {
1549 if ((err
= put_nvlist(zc
, config
)) != 0)
1553 nvlist_free(config
);
1560 zfs_ioc_pool_export(zfs_cmd_t
*zc
)
1563 boolean_t force
= (boolean_t
)zc
->zc_cookie
;
1564 boolean_t hardforce
= (boolean_t
)zc
->zc_guid
;
1566 zfs_log_history(zc
);
1567 error
= spa_export(zc
->zc_name
, NULL
, force
, hardforce
);
1573 zfs_ioc_pool_configs(zfs_cmd_t
*zc
)
1578 if ((configs
= spa_all_configs(&zc
->zc_cookie
)) == NULL
)
1579 return (SET_ERROR(EEXIST
));
1581 error
= put_nvlist(zc
, configs
);
1583 nvlist_free(configs
);
1590 * zc_name name of the pool
1593 * zc_cookie real errno
1594 * zc_nvlist_dst config nvlist
1595 * zc_nvlist_dst_size size of config nvlist
1598 zfs_ioc_pool_stats(zfs_cmd_t
*zc
)
1604 error
= spa_get_stats(zc
->zc_name
, &config
, zc
->zc_value
,
1605 sizeof (zc
->zc_value
));
1607 if (config
!= NULL
) {
1608 ret
= put_nvlist(zc
, config
);
1609 nvlist_free(config
);
1612 * The config may be present even if 'error' is non-zero.
1613 * In this case we return success, and preserve the real errno
1616 zc
->zc_cookie
= error
;
1625 * Try to import the given pool, returning pool stats as appropriate so that
1626 * user land knows which devices are available and overall pool health.
1629 zfs_ioc_pool_tryimport(zfs_cmd_t
*zc
)
1631 nvlist_t
*tryconfig
, *config
;
1634 if ((error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1635 zc
->zc_iflags
, &tryconfig
)) != 0)
1638 config
= spa_tryimport(tryconfig
);
1640 nvlist_free(tryconfig
);
1643 return (SET_ERROR(EINVAL
));
1645 error
= put_nvlist(zc
, config
);
1646 nvlist_free(config
);
1653 * zc_name name of the pool
1654 * zc_cookie scan func (pool_scan_func_t)
1657 zfs_ioc_pool_scan(zfs_cmd_t
*zc
)
1662 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1665 if (zc
->zc_cookie
== POOL_SCAN_NONE
)
1666 error
= spa_scan_stop(spa
);
1668 error
= spa_scan(spa
, zc
->zc_cookie
);
1670 spa_close(spa
, FTAG
);
1676 zfs_ioc_pool_freeze(zfs_cmd_t
*zc
)
1681 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
1684 spa_close(spa
, FTAG
);
1690 zfs_ioc_pool_upgrade(zfs_cmd_t
*zc
)
1695 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1698 if (zc
->zc_cookie
< spa_version(spa
) ||
1699 !SPA_VERSION_IS_SUPPORTED(zc
->zc_cookie
)) {
1700 spa_close(spa
, FTAG
);
1701 return (SET_ERROR(EINVAL
));
1704 spa_upgrade(spa
, zc
->zc_cookie
);
1705 spa_close(spa
, FTAG
);
1711 zfs_ioc_pool_get_history(zfs_cmd_t
*zc
)
1718 if ((size
= zc
->zc_history_len
) == 0)
1719 return (SET_ERROR(EINVAL
));
1721 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1724 if (spa_version(spa
) < SPA_VERSION_ZPOOL_HISTORY
) {
1725 spa_close(spa
, FTAG
);
1726 return (SET_ERROR(ENOTSUP
));
1729 hist_buf
= vmem_alloc(size
, KM_SLEEP
);
1730 if ((error
= spa_history_get(spa
, &zc
->zc_history_offset
,
1731 &zc
->zc_history_len
, hist_buf
)) == 0) {
1732 error
= ddi_copyout(hist_buf
,
1733 (void *)(uintptr_t)zc
->zc_history
,
1734 zc
->zc_history_len
, zc
->zc_iflags
);
1737 spa_close(spa
, FTAG
);
1738 vmem_free(hist_buf
, size
);
1743 zfs_ioc_pool_reguid(zfs_cmd_t
*zc
)
1748 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
1750 error
= spa_change_guid(spa
);
1751 spa_close(spa
, FTAG
);
1757 zfs_ioc_dsobj_to_dsname(zfs_cmd_t
*zc
)
1759 return (dsl_dsobj_to_dsname(zc
->zc_name
, zc
->zc_obj
, zc
->zc_value
));
1764 * zc_name name of filesystem
1765 * zc_obj object to find
1768 * zc_value name of object
1771 zfs_ioc_obj_to_path(zfs_cmd_t
*zc
)
1776 /* XXX reading from objset not owned */
1777 if ((error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
)) != 0)
1779 if (dmu_objset_type(os
) != DMU_OST_ZFS
) {
1780 dmu_objset_rele(os
, FTAG
);
1781 return (SET_ERROR(EINVAL
));
1783 error
= zfs_obj_to_path(os
, zc
->zc_obj
, zc
->zc_value
,
1784 sizeof (zc
->zc_value
));
1785 dmu_objset_rele(os
, FTAG
);
1792 * zc_name name of filesystem
1793 * zc_obj object to find
1796 * zc_stat stats on object
1797 * zc_value path to object
1800 zfs_ioc_obj_to_stats(zfs_cmd_t
*zc
)
1805 /* XXX reading from objset not owned */
1806 if ((error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
)) != 0)
1808 if (dmu_objset_type(os
) != DMU_OST_ZFS
) {
1809 dmu_objset_rele(os
, FTAG
);
1810 return (SET_ERROR(EINVAL
));
1812 error
= zfs_obj_to_stats(os
, zc
->zc_obj
, &zc
->zc_stat
, zc
->zc_value
,
1813 sizeof (zc
->zc_value
));
1814 dmu_objset_rele(os
, FTAG
);
1820 zfs_ioc_vdev_add(zfs_cmd_t
*zc
)
1826 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
1830 error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1831 zc
->zc_iflags
, &config
);
1833 error
= spa_vdev_add(spa
, config
);
1834 nvlist_free(config
);
1836 spa_close(spa
, FTAG
);
1842 * zc_name name of the pool
1843 * zc_nvlist_conf nvlist of devices to remove
1844 * zc_cookie to stop the remove?
1847 zfs_ioc_vdev_remove(zfs_cmd_t
*zc
)
1852 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
1855 error
= spa_vdev_remove(spa
, zc
->zc_guid
, B_FALSE
);
1856 spa_close(spa
, FTAG
);
1861 zfs_ioc_vdev_set_state(zfs_cmd_t
*zc
)
1865 vdev_state_t newstate
= VDEV_STATE_UNKNOWN
;
1867 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1869 switch (zc
->zc_cookie
) {
1870 case VDEV_STATE_ONLINE
:
1871 error
= vdev_online(spa
, zc
->zc_guid
, zc
->zc_obj
, &newstate
);
1874 case VDEV_STATE_OFFLINE
:
1875 error
= vdev_offline(spa
, zc
->zc_guid
, zc
->zc_obj
);
1878 case VDEV_STATE_FAULTED
:
1879 if (zc
->zc_obj
!= VDEV_AUX_ERR_EXCEEDED
&&
1880 zc
->zc_obj
!= VDEV_AUX_EXTERNAL
)
1881 zc
->zc_obj
= VDEV_AUX_ERR_EXCEEDED
;
1883 error
= vdev_fault(spa
, zc
->zc_guid
, zc
->zc_obj
);
1886 case VDEV_STATE_DEGRADED
:
1887 if (zc
->zc_obj
!= VDEV_AUX_ERR_EXCEEDED
&&
1888 zc
->zc_obj
!= VDEV_AUX_EXTERNAL
)
1889 zc
->zc_obj
= VDEV_AUX_ERR_EXCEEDED
;
1891 error
= vdev_degrade(spa
, zc
->zc_guid
, zc
->zc_obj
);
1895 error
= SET_ERROR(EINVAL
);
1897 zc
->zc_cookie
= newstate
;
1898 spa_close(spa
, FTAG
);
1903 zfs_ioc_vdev_attach(zfs_cmd_t
*zc
)
1906 int replacing
= zc
->zc_cookie
;
1910 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1913 if ((error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1914 zc
->zc_iflags
, &config
)) == 0) {
1915 error
= spa_vdev_attach(spa
, zc
->zc_guid
, config
, replacing
);
1916 nvlist_free(config
);
1919 spa_close(spa
, FTAG
);
1924 zfs_ioc_vdev_detach(zfs_cmd_t
*zc
)
1929 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1932 error
= spa_vdev_detach(spa
, zc
->zc_guid
, 0, B_FALSE
);
1934 spa_close(spa
, FTAG
);
1939 zfs_ioc_vdev_split(zfs_cmd_t
*zc
)
1942 nvlist_t
*config
, *props
= NULL
;
1944 boolean_t exp
= !!(zc
->zc_cookie
& ZPOOL_EXPORT_AFTER_SPLIT
);
1946 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1949 if ((error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1950 zc
->zc_iflags
, &config
))) {
1951 spa_close(spa
, FTAG
);
1955 if (zc
->zc_nvlist_src_size
!= 0 && (error
=
1956 get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
1957 zc
->zc_iflags
, &props
))) {
1958 spa_close(spa
, FTAG
);
1959 nvlist_free(config
);
1963 error
= spa_vdev_split_mirror(spa
, zc
->zc_string
, config
, props
, exp
);
1965 spa_close(spa
, FTAG
);
1967 nvlist_free(config
);
1974 zfs_ioc_vdev_setpath(zfs_cmd_t
*zc
)
1977 char *path
= zc
->zc_value
;
1978 uint64_t guid
= zc
->zc_guid
;
1981 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
1985 error
= spa_vdev_setpath(spa
, guid
, path
);
1986 spa_close(spa
, FTAG
);
1991 zfs_ioc_vdev_setfru(zfs_cmd_t
*zc
)
1994 char *fru
= zc
->zc_value
;
1995 uint64_t guid
= zc
->zc_guid
;
1998 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
2002 error
= spa_vdev_setfru(spa
, guid
, fru
);
2003 spa_close(spa
, FTAG
);
2008 zfs_ioc_objset_stats_impl(zfs_cmd_t
*zc
, objset_t
*os
)
2013 dmu_objset_fast_stat(os
, &zc
->zc_objset_stats
);
2015 if (zc
->zc_nvlist_dst
!= 0 &&
2016 (error
= dsl_prop_get_all(os
, &nv
)) == 0) {
2017 dmu_objset_stats(os
, nv
);
2019 * NB: zvol_get_stats() will read the objset contents,
2020 * which we aren't supposed to do with a
2021 * DS_MODE_USER hold, because it could be
2022 * inconsistent. So this is a bit of a workaround...
2023 * XXX reading with out owning
2025 if (!zc
->zc_objset_stats
.dds_inconsistent
&&
2026 dmu_objset_type(os
) == DMU_OST_ZVOL
) {
2027 error
= zvol_get_stats(os
, nv
);
2033 error
= put_nvlist(zc
, nv
);
2042 * zc_name name of filesystem
2043 * zc_nvlist_dst_size size of buffer for property nvlist
2046 * zc_objset_stats stats
2047 * zc_nvlist_dst property nvlist
2048 * zc_nvlist_dst_size size of property nvlist
2051 zfs_ioc_objset_stats(zfs_cmd_t
*zc
)
2056 error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
);
2058 error
= zfs_ioc_objset_stats_impl(zc
, os
);
2059 dmu_objset_rele(os
, FTAG
);
2067 * zc_name name of filesystem
2068 * zc_nvlist_dst_size size of buffer for property nvlist
2071 * zc_nvlist_dst received property nvlist
2072 * zc_nvlist_dst_size size of received property nvlist
2074 * Gets received properties (distinct from local properties on or after
2075 * SPA_VERSION_RECVD_PROPS) for callers who want to differentiate received from
2076 * local property values.
2079 zfs_ioc_objset_recvd_props(zfs_cmd_t
*zc
)
2085 * Without this check, we would return local property values if the
2086 * caller has not already received properties on or after
2087 * SPA_VERSION_RECVD_PROPS.
2089 if (!dsl_prop_get_hasrecvd(zc
->zc_name
))
2090 return (SET_ERROR(ENOTSUP
));
2092 if (zc
->zc_nvlist_dst
!= 0 &&
2093 (error
= dsl_prop_get_received(zc
->zc_name
, &nv
)) == 0) {
2094 error
= put_nvlist(zc
, nv
);
2102 nvl_add_zplprop(objset_t
*os
, nvlist_t
*props
, zfs_prop_t prop
)
2108 * zfs_get_zplprop() will either find a value or give us
2109 * the default value (if there is one).
2111 if ((error
= zfs_get_zplprop(os
, prop
, &value
)) != 0)
2113 VERIFY(nvlist_add_uint64(props
, zfs_prop_to_name(prop
), value
) == 0);
2119 * zc_name name of filesystem
2120 * zc_nvlist_dst_size size of buffer for zpl property nvlist
2123 * zc_nvlist_dst zpl property nvlist
2124 * zc_nvlist_dst_size size of zpl property nvlist
2127 zfs_ioc_objset_zplprops(zfs_cmd_t
*zc
)
2132 /* XXX reading without owning */
2133 if ((err
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
)))
2136 dmu_objset_fast_stat(os
, &zc
->zc_objset_stats
);
2139 * NB: nvl_add_zplprop() will read the objset contents,
2140 * which we aren't supposed to do with a DS_MODE_USER
2141 * hold, because it could be inconsistent.
2143 if (zc
->zc_nvlist_dst
!= 0 &&
2144 !zc
->zc_objset_stats
.dds_inconsistent
&&
2145 dmu_objset_type(os
) == DMU_OST_ZFS
) {
2148 VERIFY(nvlist_alloc(&nv
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
2149 if ((err
= nvl_add_zplprop(os
, nv
, ZFS_PROP_VERSION
)) == 0 &&
2150 (err
= nvl_add_zplprop(os
, nv
, ZFS_PROP_NORMALIZE
)) == 0 &&
2151 (err
= nvl_add_zplprop(os
, nv
, ZFS_PROP_UTF8ONLY
)) == 0 &&
2152 (err
= nvl_add_zplprop(os
, nv
, ZFS_PROP_CASE
)) == 0)
2153 err
= put_nvlist(zc
, nv
);
2156 err
= SET_ERROR(ENOENT
);
2158 dmu_objset_rele(os
, FTAG
);
2163 dataset_name_hidden(const char *name
)
2166 * Skip over datasets that are not visible in this zone,
2167 * internal datasets (which have a $ in their name), and
2168 * temporary datasets (which have a % in their name).
2170 if (strchr(name
, '$') != NULL
)
2172 if (strchr(name
, '%') != NULL
)
2174 if (!INGLOBALZONE(curproc
) && !zone_dataset_visible(name
, NULL
))
2181 * zc_name name of filesystem
2182 * zc_cookie zap cursor
2183 * zc_nvlist_dst_size size of buffer for property nvlist
2186 * zc_name name of next filesystem
2187 * zc_cookie zap cursor
2188 * zc_objset_stats stats
2189 * zc_nvlist_dst property nvlist
2190 * zc_nvlist_dst_size size of property nvlist
2193 zfs_ioc_dataset_list_next(zfs_cmd_t
*zc
)
2198 size_t orig_len
= strlen(zc
->zc_name
);
2201 if ((error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
))) {
2202 if (error
== ENOENT
)
2203 error
= SET_ERROR(ESRCH
);
2207 p
= strrchr(zc
->zc_name
, '/');
2208 if (p
== NULL
|| p
[1] != '\0')
2209 (void) strlcat(zc
->zc_name
, "/", sizeof (zc
->zc_name
));
2210 p
= zc
->zc_name
+ strlen(zc
->zc_name
);
2213 error
= dmu_dir_list_next(os
,
2214 sizeof (zc
->zc_name
) - (p
- zc
->zc_name
), p
,
2215 NULL
, &zc
->zc_cookie
);
2216 if (error
== ENOENT
)
2217 error
= SET_ERROR(ESRCH
);
2218 } while (error
== 0 && dataset_name_hidden(zc
->zc_name
));
2219 dmu_objset_rele(os
, FTAG
);
2222 * If it's an internal dataset (ie. with a '$' in its name),
2223 * don't try to get stats for it, otherwise we'll return ENOENT.
2225 if (error
== 0 && strchr(zc
->zc_name
, '$') == NULL
) {
2226 error
= zfs_ioc_objset_stats(zc
); /* fill in the stats */
2227 if (error
== ENOENT
) {
2228 /* We lost a race with destroy, get the next one. */
2229 zc
->zc_name
[orig_len
] = '\0';
2238 * zc_name name of filesystem
2239 * zc_cookie zap cursor
2240 * zc_nvlist_dst_size size of buffer for property nvlist
2243 * zc_name name of next snapshot
2244 * zc_objset_stats stats
2245 * zc_nvlist_dst property nvlist
2246 * zc_nvlist_dst_size size of property nvlist
2249 zfs_ioc_snapshot_list_next(zfs_cmd_t
*zc
)
2254 error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
);
2256 return (error
== ENOENT
? ESRCH
: error
);
2260 * A dataset name of maximum length cannot have any snapshots,
2261 * so exit immediately.
2263 if (strlcat(zc
->zc_name
, "@", sizeof (zc
->zc_name
)) >=
2264 ZFS_MAX_DATASET_NAME_LEN
) {
2265 dmu_objset_rele(os
, FTAG
);
2266 return (SET_ERROR(ESRCH
));
2269 error
= dmu_snapshot_list_next(os
,
2270 sizeof (zc
->zc_name
) - strlen(zc
->zc_name
),
2271 zc
->zc_name
+ strlen(zc
->zc_name
), &zc
->zc_obj
, &zc
->zc_cookie
,
2274 if (error
== 0 && !zc
->zc_simple
) {
2276 dsl_pool_t
*dp
= os
->os_dsl_dataset
->ds_dir
->dd_pool
;
2278 error
= dsl_dataset_hold_obj(dp
, zc
->zc_obj
, FTAG
, &ds
);
2282 error
= dmu_objset_from_ds(ds
, &ossnap
);
2284 error
= zfs_ioc_objset_stats_impl(zc
, ossnap
);
2285 dsl_dataset_rele(ds
, FTAG
);
2287 } else if (error
== ENOENT
) {
2288 error
= SET_ERROR(ESRCH
);
2291 dmu_objset_rele(os
, FTAG
);
2292 /* if we failed, undo the @ that we tacked on to zc_name */
2294 *strchr(zc
->zc_name
, '@') = '\0';
2299 zfs_prop_set_userquota(const char *dsname
, nvpair_t
*pair
)
2301 const char *propname
= nvpair_name(pair
);
2303 unsigned int vallen
;
2306 zfs_userquota_prop_t type
;
2312 if (nvpair_type(pair
) == DATA_TYPE_NVLIST
) {
2314 VERIFY(nvpair_value_nvlist(pair
, &attrs
) == 0);
2315 if (nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
2317 return (SET_ERROR(EINVAL
));
2321 * A correctly constructed propname is encoded as
2322 * userquota@<rid>-<domain>.
2324 if ((dash
= strchr(propname
, '-')) == NULL
||
2325 nvpair_value_uint64_array(pair
, &valary
, &vallen
) != 0 ||
2327 return (SET_ERROR(EINVAL
));
2334 err
= zfs_sb_hold(dsname
, FTAG
, &zsb
, B_FALSE
);
2336 err
= zfs_set_userquota(zsb
, type
, domain
, rid
, quota
);
2337 zfs_sb_rele(zsb
, FTAG
);
2344 * If the named property is one that has a special function to set its value,
2345 * return 0 on success and a positive error code on failure; otherwise if it is
2346 * not one of the special properties handled by this function, return -1.
2348 * XXX: It would be better for callers of the property interface if we handled
2349 * these special cases in dsl_prop.c (in the dsl layer).
2352 zfs_prop_set_special(const char *dsname
, zprop_source_t source
,
2355 const char *propname
= nvpair_name(pair
);
2356 zfs_prop_t prop
= zfs_name_to_prop(propname
);
2360 if (prop
== ZPROP_INVAL
) {
2361 if (zfs_prop_userquota(propname
))
2362 return (zfs_prop_set_userquota(dsname
, pair
));
2366 if (nvpair_type(pair
) == DATA_TYPE_NVLIST
) {
2368 VERIFY(nvpair_value_nvlist(pair
, &attrs
) == 0);
2369 VERIFY(nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
2373 if (zfs_prop_get_type(prop
) == PROP_TYPE_STRING
)
2376 VERIFY(0 == nvpair_value_uint64(pair
, &intval
));
2379 case ZFS_PROP_QUOTA
:
2380 err
= dsl_dir_set_quota(dsname
, source
, intval
);
2382 case ZFS_PROP_REFQUOTA
:
2383 err
= dsl_dataset_set_refquota(dsname
, source
, intval
);
2385 case ZFS_PROP_FILESYSTEM_LIMIT
:
2386 case ZFS_PROP_SNAPSHOT_LIMIT
:
2387 if (intval
== UINT64_MAX
) {
2388 /* clearing the limit, just do it */
2391 err
= dsl_dir_activate_fs_ss_limit(dsname
);
2394 * Set err to -1 to force the zfs_set_prop_nvlist code down the
2395 * default path to set the value in the nvlist.
2400 case ZFS_PROP_RESERVATION
:
2401 err
= dsl_dir_set_reservation(dsname
, source
, intval
);
2403 case ZFS_PROP_REFRESERVATION
:
2404 err
= dsl_dataset_set_refreservation(dsname
, source
, intval
);
2406 case ZFS_PROP_VOLSIZE
:
2407 err
= zvol_set_volsize(dsname
, intval
);
2409 case ZFS_PROP_SNAPDEV
:
2410 err
= zvol_set_snapdev(dsname
, source
, intval
);
2412 case ZFS_PROP_VERSION
:
2416 if ((err
= zfs_sb_hold(dsname
, FTAG
, &zsb
, B_TRUE
)) != 0)
2419 err
= zfs_set_version(zsb
, intval
);
2420 zfs_sb_rele(zsb
, FTAG
);
2422 if (err
== 0 && intval
>= ZPL_VERSION_USERSPACE
) {
2425 zc
= kmem_zalloc(sizeof (zfs_cmd_t
), KM_SLEEP
);
2426 (void) strcpy(zc
->zc_name
, dsname
);
2427 (void) zfs_ioc_userspace_upgrade(zc
);
2428 kmem_free(zc
, sizeof (zfs_cmd_t
));
2440 * This function is best effort. If it fails to set any of the given properties,
2441 * it continues to set as many as it can and returns the last error
2442 * encountered. If the caller provides a non-NULL errlist, it will be filled in
2443 * with the list of names of all the properties that failed along with the
2444 * corresponding error numbers.
2446 * If every property is set successfully, zero is returned and errlist is not
2450 zfs_set_prop_nvlist(const char *dsname
, zprop_source_t source
, nvlist_t
*nvl
,
2459 nvlist_t
*genericnvl
= fnvlist_alloc();
2460 nvlist_t
*retrynvl
= fnvlist_alloc();
2463 while ((pair
= nvlist_next_nvpair(nvl
, pair
)) != NULL
) {
2464 const char *propname
= nvpair_name(pair
);
2465 zfs_prop_t prop
= zfs_name_to_prop(propname
);
2468 /* decode the property value */
2470 if (nvpair_type(pair
) == DATA_TYPE_NVLIST
) {
2472 attrs
= fnvpair_value_nvlist(pair
);
2473 if (nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
2475 err
= SET_ERROR(EINVAL
);
2478 /* Validate value type */
2479 if (err
== 0 && prop
== ZPROP_INVAL
) {
2480 if (zfs_prop_user(propname
)) {
2481 if (nvpair_type(propval
) != DATA_TYPE_STRING
)
2482 err
= SET_ERROR(EINVAL
);
2483 } else if (zfs_prop_userquota(propname
)) {
2484 if (nvpair_type(propval
) !=
2485 DATA_TYPE_UINT64_ARRAY
)
2486 err
= SET_ERROR(EINVAL
);
2488 err
= SET_ERROR(EINVAL
);
2490 } else if (err
== 0) {
2491 if (nvpair_type(propval
) == DATA_TYPE_STRING
) {
2492 if (zfs_prop_get_type(prop
) != PROP_TYPE_STRING
)
2493 err
= SET_ERROR(EINVAL
);
2494 } else if (nvpair_type(propval
) == DATA_TYPE_UINT64
) {
2497 intval
= fnvpair_value_uint64(propval
);
2499 switch (zfs_prop_get_type(prop
)) {
2500 case PROP_TYPE_NUMBER
:
2502 case PROP_TYPE_STRING
:
2503 err
= SET_ERROR(EINVAL
);
2505 case PROP_TYPE_INDEX
:
2506 if (zfs_prop_index_to_string(prop
,
2507 intval
, &unused
) != 0)
2508 err
= SET_ERROR(EINVAL
);
2512 "unknown property type");
2515 err
= SET_ERROR(EINVAL
);
2519 /* Validate permissions */
2521 err
= zfs_check_settable(dsname
, pair
, CRED());
2524 err
= zfs_prop_set_special(dsname
, source
, pair
);
2527 * For better performance we build up a list of
2528 * properties to set in a single transaction.
2530 err
= nvlist_add_nvpair(genericnvl
, pair
);
2531 } else if (err
!= 0 && nvl
!= retrynvl
) {
2533 * This may be a spurious error caused by
2534 * receiving quota and reservation out of order.
2535 * Try again in a second pass.
2537 err
= nvlist_add_nvpair(retrynvl
, pair
);
2542 if (errlist
!= NULL
)
2543 fnvlist_add_int32(errlist
, propname
, err
);
2548 if (nvl
!= retrynvl
&& !nvlist_empty(retrynvl
)) {
2553 if (!nvlist_empty(genericnvl
) &&
2554 dsl_props_set(dsname
, source
, genericnvl
) != 0) {
2556 * If this fails, we still want to set as many properties as we
2557 * can, so try setting them individually.
2560 while ((pair
= nvlist_next_nvpair(genericnvl
, pair
)) != NULL
) {
2561 const char *propname
= nvpair_name(pair
);
2565 if (nvpair_type(pair
) == DATA_TYPE_NVLIST
) {
2567 attrs
= fnvpair_value_nvlist(pair
);
2568 propval
= fnvlist_lookup_nvpair(attrs
,
2572 if (nvpair_type(propval
) == DATA_TYPE_STRING
) {
2573 strval
= fnvpair_value_string(propval
);
2574 err
= dsl_prop_set_string(dsname
, propname
,
2577 intval
= fnvpair_value_uint64(propval
);
2578 err
= dsl_prop_set_int(dsname
, propname
, source
,
2583 if (errlist
!= NULL
) {
2584 fnvlist_add_int32(errlist
, propname
,
2591 nvlist_free(genericnvl
);
2592 nvlist_free(retrynvl
);
2598 * Check that all the properties are valid user properties.
2601 zfs_check_userprops(const char *fsname
, nvlist_t
*nvl
)
2603 nvpair_t
*pair
= NULL
;
2606 while ((pair
= nvlist_next_nvpair(nvl
, pair
)) != NULL
) {
2607 const char *propname
= nvpair_name(pair
);
2609 if (!zfs_prop_user(propname
) ||
2610 nvpair_type(pair
) != DATA_TYPE_STRING
)
2611 return (SET_ERROR(EINVAL
));
2613 if ((error
= zfs_secpolicy_write_perms(fsname
,
2614 ZFS_DELEG_PERM_USERPROP
, CRED())))
2617 if (strlen(propname
) >= ZAP_MAXNAMELEN
)
2618 return (SET_ERROR(ENAMETOOLONG
));
2620 if (strlen(fnvpair_value_string(pair
)) >= ZAP_MAXVALUELEN
)
2621 return (SET_ERROR(E2BIG
));
2627 props_skip(nvlist_t
*props
, nvlist_t
*skipped
, nvlist_t
**newprops
)
2631 VERIFY(nvlist_alloc(newprops
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
2634 while ((pair
= nvlist_next_nvpair(props
, pair
)) != NULL
) {
2635 if (nvlist_exists(skipped
, nvpair_name(pair
)))
2638 VERIFY(nvlist_add_nvpair(*newprops
, pair
) == 0);
2643 clear_received_props(const char *dsname
, nvlist_t
*props
,
2647 nvlist_t
*cleared_props
= NULL
;
2648 props_skip(props
, skipped
, &cleared_props
);
2649 if (!nvlist_empty(cleared_props
)) {
2651 * Acts on local properties until the dataset has received
2652 * properties at least once on or after SPA_VERSION_RECVD_PROPS.
2654 zprop_source_t flags
= (ZPROP_SRC_NONE
|
2655 (dsl_prop_get_hasrecvd(dsname
) ? ZPROP_SRC_RECEIVED
: 0));
2656 err
= zfs_set_prop_nvlist(dsname
, flags
, cleared_props
, NULL
);
2658 nvlist_free(cleared_props
);
2664 * zc_name name of filesystem
2665 * zc_value name of property to set
2666 * zc_nvlist_src{_size} nvlist of properties to apply
2667 * zc_cookie received properties flag
2670 * zc_nvlist_dst{_size} error for each unapplied received property
2673 zfs_ioc_set_prop(zfs_cmd_t
*zc
)
2676 boolean_t received
= zc
->zc_cookie
;
2677 zprop_source_t source
= (received
? ZPROP_SRC_RECEIVED
:
2682 if ((error
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
2683 zc
->zc_iflags
, &nvl
)) != 0)
2687 nvlist_t
*origprops
;
2689 if (dsl_prop_get_received(zc
->zc_name
, &origprops
) == 0) {
2690 (void) clear_received_props(zc
->zc_name
,
2692 nvlist_free(origprops
);
2695 error
= dsl_prop_set_hasrecvd(zc
->zc_name
);
2698 errors
= fnvlist_alloc();
2700 error
= zfs_set_prop_nvlist(zc
->zc_name
, source
, nvl
, errors
);
2702 if (zc
->zc_nvlist_dst
!= 0 && errors
!= NULL
) {
2703 (void) put_nvlist(zc
, errors
);
2706 nvlist_free(errors
);
2713 * zc_name name of filesystem
2714 * zc_value name of property to inherit
2715 * zc_cookie revert to received value if TRUE
2720 zfs_ioc_inherit_prop(zfs_cmd_t
*zc
)
2722 const char *propname
= zc
->zc_value
;
2723 zfs_prop_t prop
= zfs_name_to_prop(propname
);
2724 boolean_t received
= zc
->zc_cookie
;
2725 zprop_source_t source
= (received
2726 ? ZPROP_SRC_NONE
/* revert to received value, if any */
2727 : ZPROP_SRC_INHERITED
); /* explicitly inherit */
2736 * zfs_prop_set_special() expects properties in the form of an
2737 * nvpair with type info.
2739 if (prop
== ZPROP_INVAL
) {
2740 if (!zfs_prop_user(propname
))
2741 return (SET_ERROR(EINVAL
));
2743 type
= PROP_TYPE_STRING
;
2744 } else if (prop
== ZFS_PROP_VOLSIZE
||
2745 prop
== ZFS_PROP_VERSION
) {
2746 return (SET_ERROR(EINVAL
));
2748 type
= zfs_prop_get_type(prop
);
2751 VERIFY(nvlist_alloc(&dummy
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
2754 case PROP_TYPE_STRING
:
2755 VERIFY(0 == nvlist_add_string(dummy
, propname
, ""));
2757 case PROP_TYPE_NUMBER
:
2758 case PROP_TYPE_INDEX
:
2759 VERIFY(0 == nvlist_add_uint64(dummy
, propname
, 0));
2763 return (SET_ERROR(EINVAL
));
2766 pair
= nvlist_next_nvpair(dummy
, NULL
);
2767 err
= zfs_prop_set_special(zc
->zc_name
, source
, pair
);
2770 return (err
); /* special property already handled */
2773 * Only check this in the non-received case. We want to allow
2774 * 'inherit -S' to revert non-inheritable properties like quota
2775 * and reservation to the received or default values even though
2776 * they are not considered inheritable.
2778 if (prop
!= ZPROP_INVAL
&& !zfs_prop_inheritable(prop
))
2779 return (SET_ERROR(EINVAL
));
2782 /* property name has been validated by zfs_secpolicy_inherit_prop() */
2783 return (dsl_prop_inherit(zc
->zc_name
, zc
->zc_value
, source
));
2787 zfs_ioc_pool_set_props(zfs_cmd_t
*zc
)
2794 if ((error
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
2795 zc
->zc_iflags
, &props
)))
2799 * If the only property is the configfile, then just do a spa_lookup()
2800 * to handle the faulted case.
2802 pair
= nvlist_next_nvpair(props
, NULL
);
2803 if (pair
!= NULL
&& strcmp(nvpair_name(pair
),
2804 zpool_prop_to_name(ZPOOL_PROP_CACHEFILE
)) == 0 &&
2805 nvlist_next_nvpair(props
, pair
) == NULL
) {
2806 mutex_enter(&spa_namespace_lock
);
2807 if ((spa
= spa_lookup(zc
->zc_name
)) != NULL
) {
2808 spa_configfile_set(spa
, props
, B_FALSE
);
2809 spa_config_sync(spa
, B_FALSE
, B_TRUE
);
2811 mutex_exit(&spa_namespace_lock
);
2818 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0) {
2823 error
= spa_prop_set(spa
, props
);
2826 spa_close(spa
, FTAG
);
2832 zfs_ioc_pool_get_props(zfs_cmd_t
*zc
)
2836 nvlist_t
*nvp
= NULL
;
2838 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0) {
2840 * If the pool is faulted, there may be properties we can still
2841 * get (such as altroot and cachefile), so attempt to get them
2844 mutex_enter(&spa_namespace_lock
);
2845 if ((spa
= spa_lookup(zc
->zc_name
)) != NULL
)
2846 error
= spa_prop_get(spa
, &nvp
);
2847 mutex_exit(&spa_namespace_lock
);
2849 error
= spa_prop_get(spa
, &nvp
);
2850 spa_close(spa
, FTAG
);
2853 if (error
== 0 && zc
->zc_nvlist_dst
!= 0)
2854 error
= put_nvlist(zc
, nvp
);
2856 error
= SET_ERROR(EFAULT
);
2864 * zc_name name of filesystem
2865 * zc_nvlist_src{_size} nvlist of delegated permissions
2866 * zc_perm_action allow/unallow flag
2871 zfs_ioc_set_fsacl(zfs_cmd_t
*zc
)
2874 nvlist_t
*fsaclnv
= NULL
;
2876 if ((error
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
2877 zc
->zc_iflags
, &fsaclnv
)) != 0)
2881 * Verify nvlist is constructed correctly
2883 if ((error
= zfs_deleg_verify_nvlist(fsaclnv
)) != 0) {
2884 nvlist_free(fsaclnv
);
2885 return (SET_ERROR(EINVAL
));
2889 * If we don't have PRIV_SYS_MOUNT, then validate
2890 * that user is allowed to hand out each permission in
2894 error
= secpolicy_zfs(CRED());
2896 if (zc
->zc_perm_action
== B_FALSE
) {
2897 error
= dsl_deleg_can_allow(zc
->zc_name
,
2900 error
= dsl_deleg_can_unallow(zc
->zc_name
,
2906 error
= dsl_deleg_set(zc
->zc_name
, fsaclnv
, zc
->zc_perm_action
);
2908 nvlist_free(fsaclnv
);
2914 * zc_name name of filesystem
2917 * zc_nvlist_src{_size} nvlist of delegated permissions
2920 zfs_ioc_get_fsacl(zfs_cmd_t
*zc
)
2925 if ((error
= dsl_deleg_get(zc
->zc_name
, &nvp
)) == 0) {
2926 error
= put_nvlist(zc
, nvp
);
2935 zfs_create_cb(objset_t
*os
, void *arg
, cred_t
*cr
, dmu_tx_t
*tx
)
2937 zfs_creat_t
*zct
= arg
;
2939 zfs_create_fs(os
, cr
, zct
->zct_zplprops
, tx
);
2942 #define ZFS_PROP_UNDEFINED ((uint64_t)-1)
2946 * os parent objset pointer (NULL if root fs)
2947 * fuids_ok fuids allowed in this version of the spa?
2948 * sa_ok SAs allowed in this version of the spa?
2949 * createprops list of properties requested by creator
2952 * zplprops values for the zplprops we attach to the master node object
2953 * is_ci true if requested file system will be purely case-insensitive
2955 * Determine the settings for utf8only, normalization and
2956 * casesensitivity. Specific values may have been requested by the
2957 * creator and/or we can inherit values from the parent dataset. If
2958 * the file system is of too early a vintage, a creator can not
2959 * request settings for these properties, even if the requested
2960 * setting is the default value. We don't actually want to create dsl
2961 * properties for these, so remove them from the source nvlist after
2965 zfs_fill_zplprops_impl(objset_t
*os
, uint64_t zplver
,
2966 boolean_t fuids_ok
, boolean_t sa_ok
, nvlist_t
*createprops
,
2967 nvlist_t
*zplprops
, boolean_t
*is_ci
)
2969 uint64_t sense
= ZFS_PROP_UNDEFINED
;
2970 uint64_t norm
= ZFS_PROP_UNDEFINED
;
2971 uint64_t u8
= ZFS_PROP_UNDEFINED
;
2974 ASSERT(zplprops
!= NULL
);
2977 * Pull out creator prop choices, if any.
2980 (void) nvlist_lookup_uint64(createprops
,
2981 zfs_prop_to_name(ZFS_PROP_VERSION
), &zplver
);
2982 (void) nvlist_lookup_uint64(createprops
,
2983 zfs_prop_to_name(ZFS_PROP_NORMALIZE
), &norm
);
2984 (void) nvlist_remove_all(createprops
,
2985 zfs_prop_to_name(ZFS_PROP_NORMALIZE
));
2986 (void) nvlist_lookup_uint64(createprops
,
2987 zfs_prop_to_name(ZFS_PROP_UTF8ONLY
), &u8
);
2988 (void) nvlist_remove_all(createprops
,
2989 zfs_prop_to_name(ZFS_PROP_UTF8ONLY
));
2990 (void) nvlist_lookup_uint64(createprops
,
2991 zfs_prop_to_name(ZFS_PROP_CASE
), &sense
);
2992 (void) nvlist_remove_all(createprops
,
2993 zfs_prop_to_name(ZFS_PROP_CASE
));
2997 * If the zpl version requested is whacky or the file system
2998 * or pool is version is too "young" to support normalization
2999 * and the creator tried to set a value for one of the props,
3002 if ((zplver
< ZPL_VERSION_INITIAL
|| zplver
> ZPL_VERSION
) ||
3003 (zplver
>= ZPL_VERSION_FUID
&& !fuids_ok
) ||
3004 (zplver
>= ZPL_VERSION_SA
&& !sa_ok
) ||
3005 (zplver
< ZPL_VERSION_NORMALIZATION
&&
3006 (norm
!= ZFS_PROP_UNDEFINED
|| u8
!= ZFS_PROP_UNDEFINED
||
3007 sense
!= ZFS_PROP_UNDEFINED
)))
3008 return (SET_ERROR(ENOTSUP
));
3011 * Put the version in the zplprops
3013 VERIFY(nvlist_add_uint64(zplprops
,
3014 zfs_prop_to_name(ZFS_PROP_VERSION
), zplver
) == 0);
3016 if (norm
== ZFS_PROP_UNDEFINED
&&
3017 (error
= zfs_get_zplprop(os
, ZFS_PROP_NORMALIZE
, &norm
)) != 0)
3019 VERIFY(nvlist_add_uint64(zplprops
,
3020 zfs_prop_to_name(ZFS_PROP_NORMALIZE
), norm
) == 0);
3023 * If we're normalizing, names must always be valid UTF-8 strings.
3027 if (u8
== ZFS_PROP_UNDEFINED
&&
3028 (error
= zfs_get_zplprop(os
, ZFS_PROP_UTF8ONLY
, &u8
)) != 0)
3030 VERIFY(nvlist_add_uint64(zplprops
,
3031 zfs_prop_to_name(ZFS_PROP_UTF8ONLY
), u8
) == 0);
3033 if (sense
== ZFS_PROP_UNDEFINED
&&
3034 (error
= zfs_get_zplprop(os
, ZFS_PROP_CASE
, &sense
)) != 0)
3036 VERIFY(nvlist_add_uint64(zplprops
,
3037 zfs_prop_to_name(ZFS_PROP_CASE
), sense
) == 0);
3040 *is_ci
= (sense
== ZFS_CASE_INSENSITIVE
);
3046 zfs_fill_zplprops(const char *dataset
, nvlist_t
*createprops
,
3047 nvlist_t
*zplprops
, boolean_t
*is_ci
)
3049 boolean_t fuids_ok
, sa_ok
;
3050 uint64_t zplver
= ZPL_VERSION
;
3051 objset_t
*os
= NULL
;
3052 char parentname
[ZFS_MAX_DATASET_NAME_LEN
];
3058 (void) strlcpy(parentname
, dataset
, sizeof (parentname
));
3059 cp
= strrchr(parentname
, '/');
3063 if ((error
= spa_open(dataset
, &spa
, FTAG
)) != 0)
3066 spa_vers
= spa_version(spa
);
3067 spa_close(spa
, FTAG
);
3069 zplver
= zfs_zpl_version_map(spa_vers
);
3070 fuids_ok
= (zplver
>= ZPL_VERSION_FUID
);
3071 sa_ok
= (zplver
>= ZPL_VERSION_SA
);
3074 * Open parent object set so we can inherit zplprop values.
3076 if ((error
= dmu_objset_hold(parentname
, FTAG
, &os
)) != 0)
3079 error
= zfs_fill_zplprops_impl(os
, zplver
, fuids_ok
, sa_ok
, createprops
,
3081 dmu_objset_rele(os
, FTAG
);
3086 zfs_fill_zplprops_root(uint64_t spa_vers
, nvlist_t
*createprops
,
3087 nvlist_t
*zplprops
, boolean_t
*is_ci
)
3091 uint64_t zplver
= ZPL_VERSION
;
3094 zplver
= zfs_zpl_version_map(spa_vers
);
3095 fuids_ok
= (zplver
>= ZPL_VERSION_FUID
);
3096 sa_ok
= (zplver
>= ZPL_VERSION_SA
);
3098 error
= zfs_fill_zplprops_impl(NULL
, zplver
, fuids_ok
, sa_ok
,
3099 createprops
, zplprops
, is_ci
);
3105 * "type" -> dmu_objset_type_t (int32)
3106 * (optional) "props" -> { prop -> value }
3109 * outnvl: propname -> error code (int32)
3112 zfs_ioc_create(const char *fsname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
3115 zfs_creat_t zct
= { 0 };
3116 nvlist_t
*nvprops
= NULL
;
3117 void (*cbfunc
)(objset_t
*os
, void *arg
, cred_t
*cr
, dmu_tx_t
*tx
);
3119 dmu_objset_type_t type
;
3120 boolean_t is_insensitive
= B_FALSE
;
3122 if (nvlist_lookup_int32(innvl
, "type", &type32
) != 0)
3123 return (SET_ERROR(EINVAL
));
3125 (void) nvlist_lookup_nvlist(innvl
, "props", &nvprops
);
3129 cbfunc
= zfs_create_cb
;
3133 cbfunc
= zvol_create_cb
;
3140 if (strchr(fsname
, '@') ||
3141 strchr(fsname
, '%'))
3142 return (SET_ERROR(EINVAL
));
3144 zct
.zct_props
= nvprops
;
3147 return (SET_ERROR(EINVAL
));
3149 if (type
== DMU_OST_ZVOL
) {
3150 uint64_t volsize
, volblocksize
;
3152 if (nvprops
== NULL
)
3153 return (SET_ERROR(EINVAL
));
3154 if (nvlist_lookup_uint64(nvprops
,
3155 zfs_prop_to_name(ZFS_PROP_VOLSIZE
), &volsize
) != 0)
3156 return (SET_ERROR(EINVAL
));
3158 if ((error
= nvlist_lookup_uint64(nvprops
,
3159 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE
),
3160 &volblocksize
)) != 0 && error
!= ENOENT
)
3161 return (SET_ERROR(EINVAL
));
3164 volblocksize
= zfs_prop_default_numeric(
3165 ZFS_PROP_VOLBLOCKSIZE
);
3167 if ((error
= zvol_check_volblocksize(fsname
,
3168 volblocksize
)) != 0 ||
3169 (error
= zvol_check_volsize(volsize
,
3170 volblocksize
)) != 0)
3172 } else if (type
== DMU_OST_ZFS
) {
3176 * We have to have normalization and
3177 * case-folding flags correct when we do the
3178 * file system creation, so go figure them out
3181 VERIFY(nvlist_alloc(&zct
.zct_zplprops
,
3182 NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
3183 error
= zfs_fill_zplprops(fsname
, nvprops
,
3184 zct
.zct_zplprops
, &is_insensitive
);
3186 nvlist_free(zct
.zct_zplprops
);
3191 error
= dmu_objset_create(fsname
, type
,
3192 is_insensitive
? DS_FLAG_CI_DATASET
: 0, cbfunc
, &zct
);
3193 nvlist_free(zct
.zct_zplprops
);
3196 * It would be nice to do this atomically.
3199 error
= zfs_set_prop_nvlist(fsname
, ZPROP_SRC_LOCAL
,
3206 * Volumes will return EBUSY and cannot be destroyed
3207 * until all asynchronous minor handling has completed.
3208 * Wait for the spa_zvol_taskq to drain then retry.
3210 error2
= dsl_destroy_head(fsname
);
3211 while ((error2
== EBUSY
) && (type
== DMU_OST_ZVOL
)) {
3212 error2
= spa_open(fsname
, &spa
, FTAG
);
3214 taskq_wait(spa
->spa_zvol_taskq
);
3215 spa_close(spa
, FTAG
);
3217 error2
= dsl_destroy_head(fsname
);
3226 * "origin" -> name of origin snapshot
3227 * (optional) "props" -> { prop -> value }
3231 * outnvl: propname -> error code (int32)
3234 zfs_ioc_clone(const char *fsname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
3237 nvlist_t
*nvprops
= NULL
;
3240 if (nvlist_lookup_string(innvl
, "origin", &origin_name
) != 0)
3241 return (SET_ERROR(EINVAL
));
3242 (void) nvlist_lookup_nvlist(innvl
, "props", &nvprops
);
3244 if (strchr(fsname
, '@') ||
3245 strchr(fsname
, '%'))
3246 return (SET_ERROR(EINVAL
));
3248 if (dataset_namecheck(origin_name
, NULL
, NULL
) != 0)
3249 return (SET_ERROR(EINVAL
));
3250 error
= dmu_objset_clone(fsname
, origin_name
);
3255 * It would be nice to do this atomically.
3258 error
= zfs_set_prop_nvlist(fsname
, ZPROP_SRC_LOCAL
,
3261 (void) dsl_destroy_head(fsname
);
3268 * "snaps" -> { snapshot1, snapshot2 }
3269 * (optional) "props" -> { prop -> value (string) }
3272 * outnvl: snapshot -> error code (int32)
3275 zfs_ioc_snapshot(const char *poolname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
3278 nvlist_t
*props
= NULL
;
3280 nvpair_t
*pair
, *pair2
;
3282 (void) nvlist_lookup_nvlist(innvl
, "props", &props
);
3283 if ((error
= zfs_check_userprops(poolname
, props
)) != 0)
3286 if (!nvlist_empty(props
) &&
3287 zfs_earlier_version(poolname
, SPA_VERSION_SNAP_PROPS
))
3288 return (SET_ERROR(ENOTSUP
));
3290 if (nvlist_lookup_nvlist(innvl
, "snaps", &snaps
) != 0)
3291 return (SET_ERROR(EINVAL
));
3292 poollen
= strlen(poolname
);
3293 for (pair
= nvlist_next_nvpair(snaps
, NULL
); pair
!= NULL
;
3294 pair
= nvlist_next_nvpair(snaps
, pair
)) {
3295 const char *name
= nvpair_name(pair
);
3296 const char *cp
= strchr(name
, '@');
3299 * The snap name must contain an @, and the part after it must
3300 * contain only valid characters.
3303 zfs_component_namecheck(cp
+ 1, NULL
, NULL
) != 0)
3304 return (SET_ERROR(EINVAL
));
3307 * The snap must be in the specified pool.
3309 if (strncmp(name
, poolname
, poollen
) != 0 ||
3310 (name
[poollen
] != '/' && name
[poollen
] != '@'))
3311 return (SET_ERROR(EXDEV
));
3313 /* This must be the only snap of this fs. */
3314 for (pair2
= nvlist_next_nvpair(snaps
, pair
);
3315 pair2
!= NULL
; pair2
= nvlist_next_nvpair(snaps
, pair2
)) {
3316 if (strncmp(name
, nvpair_name(pair2
), cp
- name
+ 1)
3318 return (SET_ERROR(EXDEV
));
3323 error
= dsl_dataset_snapshot(snaps
, props
, outnvl
);
3329 * innvl: "message" -> string
3333 zfs_ioc_log_history(const char *unused
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
3341 * The poolname in the ioctl is not set, we get it from the TSD,
3342 * which was set at the end of the last successful ioctl that allows
3343 * logging. The secpolicy func already checked that it is set.
3344 * Only one log ioctl is allowed after each successful ioctl, so
3345 * we clear the TSD here.
3347 poolname
= tsd_get(zfs_allow_log_key
);
3348 if (poolname
== NULL
)
3349 return (SET_ERROR(EINVAL
));
3350 (void) tsd_set(zfs_allow_log_key
, NULL
);
3351 error
= spa_open(poolname
, &spa
, FTAG
);
3356 if (nvlist_lookup_string(innvl
, "message", &message
) != 0) {
3357 spa_close(spa
, FTAG
);
3358 return (SET_ERROR(EINVAL
));
3361 if (spa_version(spa
) < SPA_VERSION_ZPOOL_HISTORY
) {
3362 spa_close(spa
, FTAG
);
3363 return (SET_ERROR(ENOTSUP
));
3366 error
= spa_history_log(spa
, message
);
3367 spa_close(spa
, FTAG
);
3372 * The dp_config_rwlock must not be held when calling this, because the
3373 * unmount may need to write out data.
3375 * This function is best-effort. Callers must deal gracefully if it
3376 * remains mounted (or is remounted after this call).
3378 * Returns 0 if the argument is not a snapshot, or it is not currently a
3379 * filesystem, or we were able to unmount it. Returns error code otherwise.
3382 zfs_unmount_snap(const char *snapname
)
3386 if (strchr(snapname
, '@') == NULL
)
3389 err
= zfsctl_snapshot_unmount((char *)snapname
, MNT_FORCE
);
3390 if (err
!= 0 && err
!= ENOENT
)
3391 return (SET_ERROR(err
));
3398 zfs_unmount_snap_cb(const char *snapname
, void *arg
)
3400 return (zfs_unmount_snap(snapname
));
3404 * When a clone is destroyed, its origin may also need to be destroyed,
3405 * in which case it must be unmounted. This routine will do that unmount
3409 zfs_destroy_unmount_origin(const char *fsname
)
3415 error
= dmu_objset_hold(fsname
, FTAG
, &os
);
3418 ds
= dmu_objset_ds(os
);
3419 if (dsl_dir_is_clone(ds
->ds_dir
) && DS_IS_DEFER_DESTROY(ds
->ds_prev
)) {
3420 char originname
[ZFS_MAX_DATASET_NAME_LEN
];
3421 dsl_dataset_name(ds
->ds_prev
, originname
);
3422 dmu_objset_rele(os
, FTAG
);
3423 (void) zfs_unmount_snap(originname
);
3425 dmu_objset_rele(os
, FTAG
);
3431 * "snaps" -> { snapshot1, snapshot2 }
3432 * (optional boolean) "defer"
3435 * outnvl: snapshot -> error code (int32)
3439 zfs_ioc_destroy_snaps(const char *poolname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
3445 if (nvlist_lookup_nvlist(innvl
, "snaps", &snaps
) != 0)
3446 return (SET_ERROR(EINVAL
));
3447 defer
= nvlist_exists(innvl
, "defer");
3449 for (pair
= nvlist_next_nvpair(snaps
, NULL
); pair
!= NULL
;
3450 pair
= nvlist_next_nvpair(snaps
, pair
)) {
3451 (void) zfs_unmount_snap(nvpair_name(pair
));
3454 return (dsl_destroy_snapshots_nvl(snaps
, defer
, outnvl
));
3458 * Create bookmarks. Bookmark names are of the form <fs>#<bmark>.
3459 * All bookmarks must be in the same pool.
3462 * bookmark1 -> snapshot1, bookmark2 -> snapshot2
3465 * outnvl: bookmark -> error code (int32)
3470 zfs_ioc_bookmark(const char *poolname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
3472 nvpair_t
*pair
, *pair2
;
3474 for (pair
= nvlist_next_nvpair(innvl
, NULL
);
3475 pair
!= NULL
; pair
= nvlist_next_nvpair(innvl
, pair
)) {
3479 * Verify the snapshot argument.
3481 if (nvpair_value_string(pair
, &snap_name
) != 0)
3482 return (SET_ERROR(EINVAL
));
3485 /* Verify that the keys (bookmarks) are unique */
3486 for (pair2
= nvlist_next_nvpair(innvl
, pair
);
3487 pair2
!= NULL
; pair2
= nvlist_next_nvpair(innvl
, pair2
)) {
3488 if (strcmp(nvpair_name(pair
), nvpair_name(pair2
)) == 0)
3489 return (SET_ERROR(EINVAL
));
3493 return (dsl_bookmark_create(innvl
, outnvl
));
3498 * property 1, property 2, ...
3502 * bookmark name 1 -> { property 1, property 2, ... },
3503 * bookmark name 2 -> { property 1, property 2, ... }
3508 zfs_ioc_get_bookmarks(const char *fsname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
3510 return (dsl_get_bookmarks(fsname
, innvl
, outnvl
));
3515 * bookmark name 1, bookmark name 2
3518 * outnvl: bookmark -> error code (int32)
3522 zfs_ioc_destroy_bookmarks(const char *poolname
, nvlist_t
*innvl
,
3528 poollen
= strlen(poolname
);
3529 for (pair
= nvlist_next_nvpair(innvl
, NULL
);
3530 pair
!= NULL
; pair
= nvlist_next_nvpair(innvl
, pair
)) {
3531 const char *name
= nvpair_name(pair
);
3532 const char *cp
= strchr(name
, '#');
3535 * The bookmark name must contain an #, and the part after it
3536 * must contain only valid characters.
3539 zfs_component_namecheck(cp
+ 1, NULL
, NULL
) != 0)
3540 return (SET_ERROR(EINVAL
));
3543 * The bookmark must be in the specified pool.
3545 if (strncmp(name
, poolname
, poollen
) != 0 ||
3546 (name
[poollen
] != '/' && name
[poollen
] != '#'))
3547 return (SET_ERROR(EXDEV
));
3550 error
= dsl_bookmark_destroy(innvl
, outnvl
);
3556 * zc_name name of dataset to destroy
3557 * zc_objset_type type of objset
3558 * zc_defer_destroy mark for deferred destroy
3563 zfs_ioc_destroy(zfs_cmd_t
*zc
)
3567 if (zc
->zc_objset_type
== DMU_OST_ZFS
) {
3568 err
= zfs_unmount_snap(zc
->zc_name
);
3573 if (strchr(zc
->zc_name
, '@')) {
3574 err
= dsl_destroy_snapshot(zc
->zc_name
, zc
->zc_defer_destroy
);
3576 err
= dsl_destroy_head(zc
->zc_name
);
3577 if (err
== EEXIST
) {
3579 * It is possible that the given DS may have
3580 * hidden child (%recv) datasets - "leftovers"
3581 * resulting from the previously interrupted
3584 * 6 extra bytes for /%recv
3586 char namebuf
[ZFS_MAX_DATASET_NAME_LEN
+ 6];
3588 (void) snprintf(namebuf
, sizeof (namebuf
),
3589 "%s/%s", zc
->zc_name
, recv_clone_name
);
3592 * Try to remove the hidden child (%recv) and after
3593 * that try to remove the target dataset.
3594 * If the hidden child (%recv) does not exist
3595 * the original error (EEXIST) will be returned
3597 err
= dsl_destroy_head(namebuf
);
3599 err
= dsl_destroy_head(zc
->zc_name
);
3600 else if (err
== ENOENT
)
3609 * fsname is name of dataset to rollback (to most recent snapshot)
3611 * innvl is not used.
3613 * outnvl: "target" -> name of most recent snapshot
3618 zfs_ioc_rollback(const char *fsname
, nvlist_t
*args
, nvlist_t
*outnvl
)
3623 if (get_zfs_sb(fsname
, &zsb
) == 0) {
3624 error
= zfs_suspend_fs(zsb
);
3628 error
= dsl_dataset_rollback(fsname
, zsb
, outnvl
);
3629 resume_err
= zfs_resume_fs(zsb
, fsname
);
3630 error
= error
? error
: resume_err
;
3632 deactivate_super(zsb
->z_sb
);
3634 error
= dsl_dataset_rollback(fsname
, NULL
, outnvl
);
3640 recursive_unmount(const char *fsname
, void *arg
)
3642 const char *snapname
= arg
;
3646 fullname
= kmem_asprintf("%s@%s", fsname
, snapname
);
3647 error
= zfs_unmount_snap(fullname
);
3655 * zc_name old name of dataset
3656 * zc_value new name of dataset
3657 * zc_cookie recursive flag (only valid for snapshots)
3662 zfs_ioc_rename(zfs_cmd_t
*zc
)
3664 boolean_t recursive
= zc
->zc_cookie
& 1;
3667 zc
->zc_value
[sizeof (zc
->zc_value
) - 1] = '\0';
3668 if (dataset_namecheck(zc
->zc_value
, NULL
, NULL
) != 0 ||
3669 strchr(zc
->zc_value
, '%'))
3670 return (SET_ERROR(EINVAL
));
3672 at
= strchr(zc
->zc_name
, '@');
3674 /* snaps must be in same fs */
3677 if (strncmp(zc
->zc_name
, zc
->zc_value
, at
- zc
->zc_name
+ 1))
3678 return (SET_ERROR(EXDEV
));
3680 if (zc
->zc_objset_type
== DMU_OST_ZFS
) {
3681 error
= dmu_objset_find(zc
->zc_name
,
3682 recursive_unmount
, at
+ 1,
3683 recursive
? DS_FIND_CHILDREN
: 0);
3689 error
= dsl_dataset_rename_snapshot(zc
->zc_name
,
3690 at
+ 1, strchr(zc
->zc_value
, '@') + 1, recursive
);
3695 return (dsl_dir_rename(zc
->zc_name
, zc
->zc_value
));
3700 zfs_check_settable(const char *dsname
, nvpair_t
*pair
, cred_t
*cr
)
3702 const char *propname
= nvpair_name(pair
);
3703 boolean_t issnap
= (strchr(dsname
, '@') != NULL
);
3704 zfs_prop_t prop
= zfs_name_to_prop(propname
);
3708 if (prop
== ZPROP_INVAL
) {
3709 if (zfs_prop_user(propname
)) {
3710 if ((err
= zfs_secpolicy_write_perms(dsname
,
3711 ZFS_DELEG_PERM_USERPROP
, cr
)))
3716 if (!issnap
&& zfs_prop_userquota(propname
)) {
3717 const char *perm
= NULL
;
3718 const char *uq_prefix
=
3719 zfs_userquota_prop_prefixes
[ZFS_PROP_USERQUOTA
];
3720 const char *gq_prefix
=
3721 zfs_userquota_prop_prefixes
[ZFS_PROP_GROUPQUOTA
];
3723 if (strncmp(propname
, uq_prefix
,
3724 strlen(uq_prefix
)) == 0) {
3725 perm
= ZFS_DELEG_PERM_USERQUOTA
;
3726 } else if (strncmp(propname
, gq_prefix
,
3727 strlen(gq_prefix
)) == 0) {
3728 perm
= ZFS_DELEG_PERM_GROUPQUOTA
;
3730 /* USERUSED and GROUPUSED are read-only */
3731 return (SET_ERROR(EINVAL
));
3734 if ((err
= zfs_secpolicy_write_perms(dsname
, perm
, cr
)))
3739 return (SET_ERROR(EINVAL
));
3743 return (SET_ERROR(EINVAL
));
3745 if (nvpair_type(pair
) == DATA_TYPE_NVLIST
) {
3747 * dsl_prop_get_all_impl() returns properties in this
3751 VERIFY(nvpair_value_nvlist(pair
, &attrs
) == 0);
3752 VERIFY(nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
3757 * Check that this value is valid for this pool version
3760 case ZFS_PROP_COMPRESSION
:
3762 * If the user specified gzip compression, make sure
3763 * the SPA supports it. We ignore any errors here since
3764 * we'll catch them later.
3766 if (nvpair_value_uint64(pair
, &intval
) == 0) {
3767 if (intval
>= ZIO_COMPRESS_GZIP_1
&&
3768 intval
<= ZIO_COMPRESS_GZIP_9
&&
3769 zfs_earlier_version(dsname
,
3770 SPA_VERSION_GZIP_COMPRESSION
)) {
3771 return (SET_ERROR(ENOTSUP
));
3774 if (intval
== ZIO_COMPRESS_ZLE
&&
3775 zfs_earlier_version(dsname
,
3776 SPA_VERSION_ZLE_COMPRESSION
))
3777 return (SET_ERROR(ENOTSUP
));
3779 if (intval
== ZIO_COMPRESS_LZ4
) {
3782 if ((err
= spa_open(dsname
, &spa
, FTAG
)) != 0)
3785 if (!spa_feature_is_enabled(spa
,
3786 SPA_FEATURE_LZ4_COMPRESS
)) {
3787 spa_close(spa
, FTAG
);
3788 return (SET_ERROR(ENOTSUP
));
3790 spa_close(spa
, FTAG
);
3794 * If this is a bootable dataset then
3795 * verify that the compression algorithm
3796 * is supported for booting. We must return
3797 * something other than ENOTSUP since it
3798 * implies a downrev pool version.
3800 if (zfs_is_bootfs(dsname
) &&
3801 !BOOTFS_COMPRESS_VALID(intval
)) {
3802 return (SET_ERROR(ERANGE
));
3807 case ZFS_PROP_COPIES
:
3808 if (zfs_earlier_version(dsname
, SPA_VERSION_DITTO_BLOCKS
))
3809 return (SET_ERROR(ENOTSUP
));
3812 case ZFS_PROP_DEDUP
:
3813 if (zfs_earlier_version(dsname
, SPA_VERSION_DEDUP
))
3814 return (SET_ERROR(ENOTSUP
));
3817 case ZFS_PROP_VOLBLOCKSIZE
:
3818 case ZFS_PROP_RECORDSIZE
:
3819 /* Record sizes above 128k need the feature to be enabled */
3820 if (nvpair_value_uint64(pair
, &intval
) == 0 &&
3821 intval
> SPA_OLD_MAXBLOCKSIZE
) {
3825 * If this is a bootable dataset then
3826 * we don't allow large (>128K) blocks,
3827 * because GRUB doesn't support them.
3829 if (zfs_is_bootfs(dsname
) &&
3830 intval
> SPA_OLD_MAXBLOCKSIZE
) {
3831 return (SET_ERROR(ERANGE
));
3835 * We don't allow setting the property above 1MB,
3836 * unless the tunable has been changed.
3838 if (intval
> zfs_max_recordsize
||
3839 intval
> SPA_MAXBLOCKSIZE
)
3840 return (SET_ERROR(ERANGE
));
3842 if ((err
= spa_open(dsname
, &spa
, FTAG
)) != 0)
3845 if (!spa_feature_is_enabled(spa
,
3846 SPA_FEATURE_LARGE_BLOCKS
)) {
3847 spa_close(spa
, FTAG
);
3848 return (SET_ERROR(ENOTSUP
));
3850 spa_close(spa
, FTAG
);
3854 case ZFS_PROP_DNODESIZE
:
3855 /* Dnode sizes above 512 need the feature to be enabled */
3856 if (nvpair_value_uint64(pair
, &intval
) == 0 &&
3857 intval
!= ZFS_DNSIZE_LEGACY
) {
3861 * If this is a bootable dataset then
3862 * we don't allow large (>512B) dnodes,
3863 * because GRUB doesn't support them.
3865 if (zfs_is_bootfs(dsname
) &&
3866 intval
!= ZFS_DNSIZE_LEGACY
) {
3867 return (SET_ERROR(EDOM
));
3870 if ((err
= spa_open(dsname
, &spa
, FTAG
)) != 0)
3873 if (!spa_feature_is_enabled(spa
,
3874 SPA_FEATURE_LARGE_DNODE
)) {
3875 spa_close(spa
, FTAG
);
3876 return (SET_ERROR(ENOTSUP
));
3878 spa_close(spa
, FTAG
);
3882 case ZFS_PROP_SHARESMB
:
3883 if (zpl_earlier_version(dsname
, ZPL_VERSION_FUID
))
3884 return (SET_ERROR(ENOTSUP
));
3887 case ZFS_PROP_ACLINHERIT
:
3888 if (nvpair_type(pair
) == DATA_TYPE_UINT64
&&
3889 nvpair_value_uint64(pair
, &intval
) == 0) {
3890 if (intval
== ZFS_ACL_PASSTHROUGH_X
&&
3891 zfs_earlier_version(dsname
,
3892 SPA_VERSION_PASSTHROUGH_X
))
3893 return (SET_ERROR(ENOTSUP
));
3900 return (zfs_secpolicy_setprop(dsname
, prop
, pair
, CRED()));
3904 * Removes properties from the given props list that fail permission checks
3905 * needed to clear them and to restore them in case of a receive error. For each
3906 * property, make sure we have both set and inherit permissions.
3908 * Returns the first error encountered if any permission checks fail. If the
3909 * caller provides a non-NULL errlist, it also gives the complete list of names
3910 * of all the properties that failed a permission check along with the
3911 * corresponding error numbers. The caller is responsible for freeing the
3914 * If every property checks out successfully, zero is returned and the list
3915 * pointed at by errlist is NULL.
3918 zfs_check_clearable(char *dataset
, nvlist_t
*props
, nvlist_t
**errlist
)
3921 nvpair_t
*pair
, *next_pair
;
3928 VERIFY(nvlist_alloc(&errors
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
3930 zc
= kmem_alloc(sizeof (zfs_cmd_t
), KM_SLEEP
);
3931 (void) strcpy(zc
->zc_name
, dataset
);
3932 pair
= nvlist_next_nvpair(props
, NULL
);
3933 while (pair
!= NULL
) {
3934 next_pair
= nvlist_next_nvpair(props
, pair
);
3936 (void) strcpy(zc
->zc_value
, nvpair_name(pair
));
3937 if ((err
= zfs_check_settable(dataset
, pair
, CRED())) != 0 ||
3938 (err
= zfs_secpolicy_inherit_prop(zc
, NULL
, CRED())) != 0) {
3939 VERIFY(nvlist_remove_nvpair(props
, pair
) == 0);
3940 VERIFY(nvlist_add_int32(errors
,
3941 zc
->zc_value
, err
) == 0);
3945 kmem_free(zc
, sizeof (zfs_cmd_t
));
3947 if ((pair
= nvlist_next_nvpair(errors
, NULL
)) == NULL
) {
3948 nvlist_free(errors
);
3951 VERIFY(nvpair_value_int32(pair
, &rv
) == 0);
3954 if (errlist
== NULL
)
3955 nvlist_free(errors
);
3963 propval_equals(nvpair_t
*p1
, nvpair_t
*p2
)
3965 if (nvpair_type(p1
) == DATA_TYPE_NVLIST
) {
3966 /* dsl_prop_get_all_impl() format */
3968 VERIFY(nvpair_value_nvlist(p1
, &attrs
) == 0);
3969 VERIFY(nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
3973 if (nvpair_type(p2
) == DATA_TYPE_NVLIST
) {
3975 VERIFY(nvpair_value_nvlist(p2
, &attrs
) == 0);
3976 VERIFY(nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
3980 if (nvpair_type(p1
) != nvpair_type(p2
))
3983 if (nvpair_type(p1
) == DATA_TYPE_STRING
) {
3984 char *valstr1
, *valstr2
;
3986 VERIFY(nvpair_value_string(p1
, (char **)&valstr1
) == 0);
3987 VERIFY(nvpair_value_string(p2
, (char **)&valstr2
) == 0);
3988 return (strcmp(valstr1
, valstr2
) == 0);
3990 uint64_t intval1
, intval2
;
3992 VERIFY(nvpair_value_uint64(p1
, &intval1
) == 0);
3993 VERIFY(nvpair_value_uint64(p2
, &intval2
) == 0);
3994 return (intval1
== intval2
);
3999 * Remove properties from props if they are not going to change (as determined
4000 * by comparison with origprops). Remove them from origprops as well, since we
4001 * do not need to clear or restore properties that won't change.
4004 props_reduce(nvlist_t
*props
, nvlist_t
*origprops
)
4006 nvpair_t
*pair
, *next_pair
;
4008 if (origprops
== NULL
)
4009 return; /* all props need to be received */
4011 pair
= nvlist_next_nvpair(props
, NULL
);
4012 while (pair
!= NULL
) {
4013 const char *propname
= nvpair_name(pair
);
4016 next_pair
= nvlist_next_nvpair(props
, pair
);
4018 if ((nvlist_lookup_nvpair(origprops
, propname
,
4019 &match
) != 0) || !propval_equals(pair
, match
))
4020 goto next
; /* need to set received value */
4022 /* don't clear the existing received value */
4023 (void) nvlist_remove_nvpair(origprops
, match
);
4024 /* don't bother receiving the property */
4025 (void) nvlist_remove_nvpair(props
, pair
);
4032 * Extract properties that cannot be set PRIOR to the receipt of a dataset.
4033 * For example, refquota cannot be set until after the receipt of a dataset,
4034 * because in replication streams, an older/earlier snapshot may exceed the
4035 * refquota. We want to receive the older/earlier snapshot, but setting
4036 * refquota pre-receipt will set the dsl's ACTUAL quota, which will prevent
4037 * the older/earlier snapshot from being received (with EDQUOT).
4039 * The ZFS test "zfs_receive_011_pos" demonstrates such a scenario.
4041 * libzfs will need to be judicious handling errors encountered by props
4042 * extracted by this function.
4045 extract_delay_props(nvlist_t
*props
)
4047 nvlist_t
*delayprops
;
4048 nvpair_t
*nvp
, *tmp
;
4049 static const zfs_prop_t delayable
[] = { ZFS_PROP_REFQUOTA
, 0 };
4052 VERIFY(nvlist_alloc(&delayprops
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
4054 for (nvp
= nvlist_next_nvpair(props
, NULL
); nvp
!= NULL
;
4055 nvp
= nvlist_next_nvpair(props
, nvp
)) {
4057 * strcmp() is safe because zfs_prop_to_name() always returns
4060 for (i
= 0; delayable
[i
] != 0; i
++) {
4061 if (strcmp(zfs_prop_to_name(delayable
[i
]),
4062 nvpair_name(nvp
)) == 0) {
4066 if (delayable
[i
] != 0) {
4067 tmp
= nvlist_prev_nvpair(props
, nvp
);
4068 VERIFY(nvlist_add_nvpair(delayprops
, nvp
) == 0);
4069 VERIFY(nvlist_remove_nvpair(props
, nvp
) == 0);
4074 if (nvlist_empty(delayprops
)) {
4075 nvlist_free(delayprops
);
4078 return (delayprops
);
4082 static boolean_t zfs_ioc_recv_inject_err
;
4086 * nvlist 'errors' is always allocated. It will contain descriptions of
4087 * encountered errors, if any. It's the callers responsibility to free.
4090 zfs_ioc_recv_impl(char *tofs
, char *tosnap
, char *origin
,
4091 nvlist_t
*props
, boolean_t force
, boolean_t resumable
, int input_fd
,
4092 dmu_replay_record_t
*begin_record
, int cleanup_fd
, uint64_t *read_bytes
,
4093 uint64_t *errflags
, uint64_t *action_handle
, nvlist_t
**errors
)
4095 dmu_recv_cookie_t drc
;
4097 int props_error
= 0;
4099 nvlist_t
*delayprops
= NULL
; /* sent properties applied post-receive */
4100 nvlist_t
*origprops
= NULL
; /* existing properties */
4101 boolean_t first_recvd_props
= B_FALSE
;
4106 *errors
= fnvlist_alloc();
4108 input_fp
= getf(input_fd
);
4109 if (input_fp
== NULL
)
4110 return (SET_ERROR(EBADF
));
4112 error
= dmu_recv_begin(tofs
, tosnap
,
4113 begin_record
, force
, resumable
, origin
, &drc
);
4118 * Set properties before we receive the stream so that they are applied
4119 * to the new data. Note that we must call dmu_recv_stream() if
4120 * dmu_recv_begin() succeeds.
4122 if (props
!= NULL
&& !drc
.drc_newfs
) {
4123 if (spa_version(dsl_dataset_get_spa(drc
.drc_ds
)) >=
4124 SPA_VERSION_RECVD_PROPS
&&
4125 !dsl_prop_get_hasrecvd(tofs
))
4126 first_recvd_props
= B_TRUE
;
4129 * If new received properties are supplied, they are to
4130 * completely replace the existing received properties, so stash
4131 * away the existing ones.
4133 if (dsl_prop_get_received(tofs
, &origprops
) == 0) {
4134 nvlist_t
*errlist
= NULL
;
4136 * Don't bother writing a property if its value won't
4137 * change (and avoid the unnecessary security checks).
4139 * The first receive after SPA_VERSION_RECVD_PROPS is a
4140 * special case where we blow away all local properties
4143 if (!first_recvd_props
)
4144 props_reduce(props
, origprops
);
4145 if (zfs_check_clearable(tofs
, origprops
, &errlist
) != 0)
4146 (void) nvlist_merge(*errors
, errlist
, 0);
4147 nvlist_free(errlist
);
4149 if (clear_received_props(tofs
, origprops
,
4150 first_recvd_props
? NULL
: props
) != 0)
4151 *errflags
|= ZPROP_ERR_NOCLEAR
;
4153 *errflags
|= ZPROP_ERR_NOCLEAR
;
4157 if (props
!= NULL
) {
4158 props_error
= dsl_prop_set_hasrecvd(tofs
);
4160 if (props_error
== 0) {
4161 delayprops
= extract_delay_props(props
);
4162 (void) zfs_set_prop_nvlist(tofs
, ZPROP_SRC_RECEIVED
,
4167 off
= input_fp
->f_offset
;
4168 error
= dmu_recv_stream(&drc
, input_fp
->f_vnode
, &off
, cleanup_fd
,
4172 zfs_sb_t
*zsb
= NULL
;
4174 if (get_zfs_sb(tofs
, &zsb
) == 0) {
4178 error
= zfs_suspend_fs(zsb
);
4180 * If the suspend fails, then the recv_end will
4181 * likely also fail, and clean up after itself.
4183 end_err
= dmu_recv_end(&drc
, zsb
);
4185 error
= zfs_resume_fs(zsb
, tofs
);
4186 error
= error
? error
: end_err
;
4187 deactivate_super(zsb
->z_sb
);
4189 error
= dmu_recv_end(&drc
, NULL
);
4192 /* Set delayed properties now, after we're done receiving. */
4193 if (delayprops
!= NULL
&& error
== 0) {
4194 (void) zfs_set_prop_nvlist(tofs
, ZPROP_SRC_RECEIVED
,
4195 delayprops
, *errors
);
4199 if (delayprops
!= NULL
) {
4201 * Merge delayed props back in with initial props, in case
4202 * we're DEBUG and zfs_ioc_recv_inject_err is set (which means
4203 * we have to make sure clear_received_props() includes
4204 * the delayed properties).
4206 * Since zfs_ioc_recv_inject_err is only in DEBUG kernels,
4207 * using ASSERT() will be just like a VERIFY.
4209 ASSERT(nvlist_merge(props
, delayprops
, 0) == 0);
4210 nvlist_free(delayprops
);
4214 *read_bytes
= off
- input_fp
->f_offset
;
4215 if (VOP_SEEK(input_fp
->f_vnode
, input_fp
->f_offset
, &off
, NULL
) == 0)
4216 input_fp
->f_offset
= off
;
4219 if (zfs_ioc_recv_inject_err
) {
4220 zfs_ioc_recv_inject_err
= B_FALSE
;
4226 * On error, restore the original props.
4228 if (error
!= 0 && props
!= NULL
&& !drc
.drc_newfs
) {
4229 if (clear_received_props(tofs
, props
, NULL
) != 0) {
4231 * We failed to clear the received properties.
4232 * Since we may have left a $recvd value on the
4233 * system, we can't clear the $hasrecvd flag.
4235 *errflags
|= ZPROP_ERR_NORESTORE
;
4236 } else if (first_recvd_props
) {
4237 dsl_prop_unset_hasrecvd(tofs
);
4240 if (origprops
== NULL
&& !drc
.drc_newfs
) {
4241 /* We failed to stash the original properties. */
4242 *errflags
|= ZPROP_ERR_NORESTORE
;
4246 * dsl_props_set() will not convert RECEIVED to LOCAL on or
4247 * after SPA_VERSION_RECVD_PROPS, so we need to specify LOCAL
4248 * explictly if we're restoring local properties cleared in the
4249 * first new-style receive.
4251 if (origprops
!= NULL
&&
4252 zfs_set_prop_nvlist(tofs
, (first_recvd_props
?
4253 ZPROP_SRC_LOCAL
: ZPROP_SRC_RECEIVED
),
4254 origprops
, NULL
) != 0) {
4256 * We stashed the original properties but failed to
4259 *errflags
|= ZPROP_ERR_NORESTORE
;
4264 nvlist_free(origprops
);
4267 error
= props_error
;
4274 * zc_name name of containing filesystem (unused)
4275 * zc_nvlist_src{_size} nvlist of properties to apply
4276 * zc_value name of snapshot to create
4277 * zc_string name of clone origin (if DRR_FLAG_CLONE)
4278 * zc_cookie file descriptor to recv from
4279 * zc_begin_record the BEGIN record of the stream (not byteswapped)
4280 * zc_guid force flag
4281 * zc_cleanup_fd cleanup-on-exit file descriptor
4282 * zc_action_handle handle for this guid/ds mapping (or zero on first call)
4285 * zc_cookie number of bytes read
4286 * zc_obj zprop_errflags_t
4287 * zc_action_handle handle for this guid/ds mapping
4288 * zc_nvlist_dst{_size} error for each unapplied received property
4291 zfs_ioc_recv(zfs_cmd_t
*zc
)
4293 dmu_replay_record_t begin_record
;
4294 nvlist_t
*errors
= NULL
;
4295 nvlist_t
*props
= NULL
;
4296 char *origin
= NULL
;
4298 char tofs
[ZFS_MAX_DATASET_NAME_LEN
];
4301 if (dataset_namecheck(zc
->zc_value
, NULL
, NULL
) != 0 ||
4302 strchr(zc
->zc_value
, '@') == NULL
||
4303 strchr(zc
->zc_value
, '%'))
4304 return (SET_ERROR(EINVAL
));
4306 (void) strcpy(tofs
, zc
->zc_value
);
4307 tosnap
= strchr(tofs
, '@');
4310 if (zc
->zc_nvlist_src
!= 0 &&
4311 (error
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
4312 zc
->zc_iflags
, &props
)) != 0)
4315 if (zc
->zc_string
[0])
4316 origin
= zc
->zc_string
;
4318 begin_record
.drr_type
= DRR_BEGIN
;
4319 begin_record
.drr_payloadlen
= 0;
4320 begin_record
.drr_u
.drr_begin
= zc
->zc_begin_record
;
4322 error
= zfs_ioc_recv_impl(tofs
, tosnap
, origin
, props
, zc
->zc_guid
,
4323 B_FALSE
, zc
->zc_cookie
, &begin_record
, zc
->zc_cleanup_fd
,
4324 &zc
->zc_cookie
, &zc
->zc_obj
, &zc
->zc_action_handle
, &errors
);
4328 * Now that all props, initial and delayed, are set, report the prop
4329 * errors to the caller.
4331 if (zc
->zc_nvlist_dst_size
!= 0 && errors
!= NULL
&&
4332 (nvlist_smush(errors
, zc
->zc_nvlist_dst_size
) != 0 ||
4333 put_nvlist(zc
, errors
) != 0)) {
4335 * Caller made zc->zc_nvlist_dst less than the minimum expected
4336 * size or supplied an invalid address.
4338 error
= SET_ERROR(EINVAL
);
4341 nvlist_free(errors
);
4348 * "snapname" -> full name of the snapshot to create
4349 * (optional) "props" -> properties to set (nvlist)
4350 * (optional) "origin" -> name of clone origin (DRR_FLAG_CLONE)
4351 * "begin_record" -> non-byteswapped dmu_replay_record_t
4352 * "input_fd" -> file descriptor to read stream from (int32)
4353 * (optional) "force" -> force flag (value ignored)
4354 * (optional) "resumable" -> resumable flag (value ignored)
4355 * (optional) "cleanup_fd" -> cleanup-on-exit file descriptor
4356 * (optional) "action_handle" -> handle for this guid/ds mapping
4360 * "read_bytes" -> number of bytes read
4361 * "error_flags" -> zprop_errflags_t
4362 * "action_handle" -> handle for this guid/ds mapping
4363 * "errors" -> error for each unapplied received property (nvlist)
4367 zfs_ioc_recv_new(const char *fsname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
4369 dmu_replay_record_t
*begin_record
;
4370 uint_t begin_record_size
;
4371 nvlist_t
*errors
= NULL
;
4372 nvlist_t
*props
= NULL
;
4373 char *snapname
= NULL
;
4374 char *origin
= NULL
;
4376 char tofs
[ZFS_MAX_DATASET_NAME_LEN
];
4378 boolean_t resumable
;
4379 uint64_t action_handle
= 0;
4380 uint64_t read_bytes
= 0;
4381 uint64_t errflags
= 0;
4383 int cleanup_fd
= -1;
4386 error
= nvlist_lookup_string(innvl
, "snapname", &snapname
);
4388 return (SET_ERROR(EINVAL
));
4390 if (dataset_namecheck(snapname
, NULL
, NULL
) != 0 ||
4391 strchr(snapname
, '@') == NULL
||
4392 strchr(snapname
, '%'))
4393 return (SET_ERROR(EINVAL
));
4395 (void) strcpy(tofs
, snapname
);
4396 tosnap
= strchr(tofs
, '@');
4399 error
= nvlist_lookup_string(innvl
, "origin", &origin
);
4400 if (error
&& error
!= ENOENT
)
4403 error
= nvlist_lookup_byte_array(innvl
, "begin_record",
4404 (uchar_t
**) &begin_record
, &begin_record_size
);
4405 if (error
!= 0 || begin_record_size
!= sizeof (*begin_record
))
4406 return (SET_ERROR(EINVAL
));
4408 error
= nvlist_lookup_int32(innvl
, "input_fd", &input_fd
);
4410 return (SET_ERROR(EINVAL
));
4412 force
= nvlist_exists(innvl
, "force");
4413 resumable
= nvlist_exists(innvl
, "resumable");
4415 error
= nvlist_lookup_int32(innvl
, "cleanup_fd", &cleanup_fd
);
4416 if (error
&& error
!= ENOENT
)
4419 error
= nvlist_lookup_uint64(innvl
, "action_handle", &action_handle
);
4420 if (error
&& error
!= ENOENT
)
4423 error
= nvlist_lookup_nvlist(innvl
, "props", &props
);
4424 if (error
&& error
!= ENOENT
)
4427 error
= zfs_ioc_recv_impl(tofs
, tosnap
, origin
, props
, force
,
4428 resumable
, input_fd
, begin_record
, cleanup_fd
, &read_bytes
,
4429 &errflags
, &action_handle
, &errors
);
4431 fnvlist_add_uint64(outnvl
, "read_bytes", read_bytes
);
4432 fnvlist_add_uint64(outnvl
, "error_flags", errflags
);
4433 fnvlist_add_uint64(outnvl
, "action_handle", action_handle
);
4434 fnvlist_add_nvlist(outnvl
, "errors", errors
);
4436 nvlist_free(errors
);
4444 * zc_name name of snapshot to send
4445 * zc_cookie file descriptor to send stream to
4446 * zc_obj fromorigin flag (mutually exclusive with zc_fromobj)
4447 * zc_sendobj objsetid of snapshot to send
4448 * zc_fromobj objsetid of incremental fromsnap (may be zero)
4449 * zc_guid if set, estimate size of stream only. zc_cookie is ignored.
4450 * output size in zc_objset_type.
4451 * zc_flags lzc_send_flags
4454 * zc_objset_type estimated size, if zc_guid is set
4457 zfs_ioc_send(zfs_cmd_t
*zc
)
4461 boolean_t estimate
= (zc
->zc_guid
!= 0);
4462 boolean_t embedok
= (zc
->zc_flags
& 0x1);
4463 boolean_t large_block_ok
= (zc
->zc_flags
& 0x2);
4464 boolean_t compressok
= (zc
->zc_flags
& 0x4);
4466 if (zc
->zc_obj
!= 0) {
4468 dsl_dataset_t
*tosnap
;
4470 error
= dsl_pool_hold(zc
->zc_name
, FTAG
, &dp
);
4474 error
= dsl_dataset_hold_obj(dp
, zc
->zc_sendobj
, FTAG
, &tosnap
);
4476 dsl_pool_rele(dp
, FTAG
);
4480 if (dsl_dir_is_clone(tosnap
->ds_dir
))
4482 dsl_dir_phys(tosnap
->ds_dir
)->dd_origin_obj
;
4483 dsl_dataset_rele(tosnap
, FTAG
);
4484 dsl_pool_rele(dp
, FTAG
);
4489 dsl_dataset_t
*tosnap
;
4490 dsl_dataset_t
*fromsnap
= NULL
;
4492 error
= dsl_pool_hold(zc
->zc_name
, FTAG
, &dp
);
4496 error
= dsl_dataset_hold_obj(dp
, zc
->zc_sendobj
, FTAG
, &tosnap
);
4498 dsl_pool_rele(dp
, FTAG
);
4502 if (zc
->zc_fromobj
!= 0) {
4503 error
= dsl_dataset_hold_obj(dp
, zc
->zc_fromobj
,
4506 dsl_dataset_rele(tosnap
, FTAG
);
4507 dsl_pool_rele(dp
, FTAG
);
4512 error
= dmu_send_estimate(tosnap
, fromsnap
, compressok
,
4513 &zc
->zc_objset_type
);
4515 if (fromsnap
!= NULL
)
4516 dsl_dataset_rele(fromsnap
, FTAG
);
4517 dsl_dataset_rele(tosnap
, FTAG
);
4518 dsl_pool_rele(dp
, FTAG
);
4520 file_t
*fp
= getf(zc
->zc_cookie
);
4522 return (SET_ERROR(EBADF
));
4525 error
= dmu_send_obj(zc
->zc_name
, zc
->zc_sendobj
,
4526 zc
->zc_fromobj
, embedok
, large_block_ok
, compressok
,
4527 zc
->zc_cookie
, fp
->f_vnode
, &off
);
4529 if (VOP_SEEK(fp
->f_vnode
, fp
->f_offset
, &off
, NULL
) == 0)
4531 releasef(zc
->zc_cookie
);
4538 * zc_name name of snapshot on which to report progress
4539 * zc_cookie file descriptor of send stream
4542 * zc_cookie number of bytes written in send stream thus far
4545 zfs_ioc_send_progress(zfs_cmd_t
*zc
)
4549 dmu_sendarg_t
*dsp
= NULL
;
4552 error
= dsl_pool_hold(zc
->zc_name
, FTAG
, &dp
);
4556 error
= dsl_dataset_hold(dp
, zc
->zc_name
, FTAG
, &ds
);
4558 dsl_pool_rele(dp
, FTAG
);
4562 mutex_enter(&ds
->ds_sendstream_lock
);
4565 * Iterate over all the send streams currently active on this dataset.
4566 * If there's one which matches the specified file descriptor _and_ the
4567 * stream was started by the current process, return the progress of
4571 for (dsp
= list_head(&ds
->ds_sendstreams
); dsp
!= NULL
;
4572 dsp
= list_next(&ds
->ds_sendstreams
, dsp
)) {
4573 if (dsp
->dsa_outfd
== zc
->zc_cookie
&&
4574 dsp
->dsa_proc
->group_leader
== curproc
->group_leader
)
4579 zc
->zc_cookie
= *(dsp
->dsa_off
);
4581 error
= SET_ERROR(ENOENT
);
4583 mutex_exit(&ds
->ds_sendstream_lock
);
4584 dsl_dataset_rele(ds
, FTAG
);
4585 dsl_pool_rele(dp
, FTAG
);
4590 zfs_ioc_inject_fault(zfs_cmd_t
*zc
)
4594 error
= zio_inject_fault(zc
->zc_name
, (int)zc
->zc_guid
, &id
,
4595 &zc
->zc_inject_record
);
4598 zc
->zc_guid
= (uint64_t)id
;
4604 zfs_ioc_clear_fault(zfs_cmd_t
*zc
)
4606 return (zio_clear_fault((int)zc
->zc_guid
));
4610 zfs_ioc_inject_list_next(zfs_cmd_t
*zc
)
4612 int id
= (int)zc
->zc_guid
;
4615 error
= zio_inject_list_next(&id
, zc
->zc_name
, sizeof (zc
->zc_name
),
4616 &zc
->zc_inject_record
);
4624 zfs_ioc_error_log(zfs_cmd_t
*zc
)
4628 size_t count
= (size_t)zc
->zc_nvlist_dst_size
;
4630 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
4633 error
= spa_get_errlog(spa
, (void *)(uintptr_t)zc
->zc_nvlist_dst
,
4636 zc
->zc_nvlist_dst_size
= count
;
4638 zc
->zc_nvlist_dst_size
= spa_get_errlog_size(spa
);
4640 spa_close(spa
, FTAG
);
4646 zfs_ioc_clear(zfs_cmd_t
*zc
)
4653 * On zpool clear we also fix up missing slogs
4655 mutex_enter(&spa_namespace_lock
);
4656 spa
= spa_lookup(zc
->zc_name
);
4658 mutex_exit(&spa_namespace_lock
);
4659 return (SET_ERROR(EIO
));
4661 if (spa_get_log_state(spa
) == SPA_LOG_MISSING
) {
4662 /* we need to let spa_open/spa_load clear the chains */
4663 spa_set_log_state(spa
, SPA_LOG_CLEAR
);
4665 spa
->spa_last_open_failed
= 0;
4666 mutex_exit(&spa_namespace_lock
);
4668 if (zc
->zc_cookie
& ZPOOL_NO_REWIND
) {
4669 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
4672 nvlist_t
*config
= NULL
;
4674 if (zc
->zc_nvlist_src
== 0)
4675 return (SET_ERROR(EINVAL
));
4677 if ((error
= get_nvlist(zc
->zc_nvlist_src
,
4678 zc
->zc_nvlist_src_size
, zc
->zc_iflags
, &policy
)) == 0) {
4679 error
= spa_open_rewind(zc
->zc_name
, &spa
, FTAG
,
4681 if (config
!= NULL
) {
4684 if ((err
= put_nvlist(zc
, config
)) != 0)
4686 nvlist_free(config
);
4688 nvlist_free(policy
);
4695 spa_vdev_state_enter(spa
, SCL_NONE
);
4697 if (zc
->zc_guid
== 0) {
4700 vd
= spa_lookup_by_guid(spa
, zc
->zc_guid
, B_TRUE
);
4702 (void) spa_vdev_state_exit(spa
, NULL
, ENODEV
);
4703 spa_close(spa
, FTAG
);
4704 return (SET_ERROR(ENODEV
));
4708 vdev_clear(spa
, vd
);
4710 (void) spa_vdev_state_exit(spa
, NULL
, 0);
4713 * Resume any suspended I/Os.
4715 if (zio_resume(spa
) != 0)
4716 error
= SET_ERROR(EIO
);
4718 spa_close(spa
, FTAG
);
4724 zfs_ioc_pool_reopen(zfs_cmd_t
*zc
)
4729 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
4733 spa_vdev_state_enter(spa
, SCL_NONE
);
4736 * If a resilver is already in progress then set the
4737 * spa_scrub_reopen flag to B_TRUE so that we don't restart
4738 * the scan as a side effect of the reopen. Otherwise, let
4739 * vdev_open() decided if a resilver is required.
4741 spa
->spa_scrub_reopen
= dsl_scan_resilvering(spa
->spa_dsl_pool
);
4742 vdev_reopen(spa
->spa_root_vdev
);
4743 spa
->spa_scrub_reopen
= B_FALSE
;
4745 (void) spa_vdev_state_exit(spa
, NULL
, 0);
4746 spa_close(spa
, FTAG
);
4751 * zc_name name of filesystem
4752 * zc_value name of origin snapshot
4755 * zc_string name of conflicting snapshot, if there is one
4758 zfs_ioc_promote(zfs_cmd_t
*zc
)
4763 * We don't need to unmount *all* the origin fs's snapshots, but
4766 cp
= strchr(zc
->zc_value
, '@');
4769 (void) dmu_objset_find(zc
->zc_value
,
4770 zfs_unmount_snap_cb
, NULL
, DS_FIND_SNAPSHOTS
);
4771 return (dsl_dataset_promote(zc
->zc_name
, zc
->zc_string
));
4775 * Retrieve a single {user|group}{used|quota}@... property.
4778 * zc_name name of filesystem
4779 * zc_objset_type zfs_userquota_prop_t
4780 * zc_value domain name (eg. "S-1-234-567-89")
4781 * zc_guid RID/UID/GID
4784 * zc_cookie property value
4787 zfs_ioc_userspace_one(zfs_cmd_t
*zc
)
4792 if (zc
->zc_objset_type
>= ZFS_NUM_USERQUOTA_PROPS
)
4793 return (SET_ERROR(EINVAL
));
4795 error
= zfs_sb_hold(zc
->zc_name
, FTAG
, &zsb
, B_FALSE
);
4799 error
= zfs_userspace_one(zsb
,
4800 zc
->zc_objset_type
, zc
->zc_value
, zc
->zc_guid
, &zc
->zc_cookie
);
4801 zfs_sb_rele(zsb
, FTAG
);
4808 * zc_name name of filesystem
4809 * zc_cookie zap cursor
4810 * zc_objset_type zfs_userquota_prop_t
4811 * zc_nvlist_dst[_size] buffer to fill (not really an nvlist)
4814 * zc_nvlist_dst[_size] data buffer (array of zfs_useracct_t)
4815 * zc_cookie zap cursor
4818 zfs_ioc_userspace_many(zfs_cmd_t
*zc
)
4821 int bufsize
= zc
->zc_nvlist_dst_size
;
4826 return (SET_ERROR(ENOMEM
));
4828 error
= zfs_sb_hold(zc
->zc_name
, FTAG
, &zsb
, B_FALSE
);
4832 buf
= vmem_alloc(bufsize
, KM_SLEEP
);
4834 error
= zfs_userspace_many(zsb
, zc
->zc_objset_type
, &zc
->zc_cookie
,
4835 buf
, &zc
->zc_nvlist_dst_size
);
4838 error
= xcopyout(buf
,
4839 (void *)(uintptr_t)zc
->zc_nvlist_dst
,
4840 zc
->zc_nvlist_dst_size
);
4842 vmem_free(buf
, bufsize
);
4843 zfs_sb_rele(zsb
, FTAG
);
4850 * zc_name name of filesystem
4856 zfs_ioc_userspace_upgrade(zfs_cmd_t
*zc
)
4862 if (get_zfs_sb(zc
->zc_name
, &zsb
) == 0) {
4863 if (!dmu_objset_userused_enabled(zsb
->z_os
)) {
4865 * If userused is not enabled, it may be because the
4866 * objset needs to be closed & reopened (to grow the
4867 * objset_phys_t). Suspend/resume the fs will do that.
4869 error
= zfs_suspend_fs(zsb
);
4871 dmu_objset_refresh_ownership(zsb
->z_os
,
4873 error
= zfs_resume_fs(zsb
, zc
->zc_name
);
4877 error
= dmu_objset_userspace_upgrade(zsb
->z_os
);
4878 deactivate_super(zsb
->z_sb
);
4880 /* XXX kind of reading contents without owning */
4881 error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
);
4885 error
= dmu_objset_userspace_upgrade(os
);
4886 dmu_objset_rele(os
, FTAG
);
4893 zfs_ioc_share(zfs_cmd_t
*zc
)
4895 return (SET_ERROR(ENOSYS
));
4898 ace_t full_access
[] = {
4899 {(uid_t
)-1, ACE_ALL_PERMS
, ACE_EVERYONE
, 0}
4904 * zc_name name of containing filesystem
4905 * zc_obj object # beyond which we want next in-use object #
4908 * zc_obj next in-use object #
4911 zfs_ioc_next_obj(zfs_cmd_t
*zc
)
4913 objset_t
*os
= NULL
;
4916 error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
);
4920 error
= dmu_object_next(os
, &zc
->zc_obj
, B_FALSE
, 0);
4922 dmu_objset_rele(os
, FTAG
);
4928 * zc_name name of filesystem
4929 * zc_value prefix name for snapshot
4930 * zc_cleanup_fd cleanup-on-exit file descriptor for calling process
4933 * zc_value short name of new snapshot
4936 zfs_ioc_tmp_snapshot(zfs_cmd_t
*zc
)
4943 error
= zfs_onexit_fd_hold(zc
->zc_cleanup_fd
, &minor
);
4947 snap_name
= kmem_asprintf("%s-%016llx", zc
->zc_value
,
4948 (u_longlong_t
)ddi_get_lbolt64());
4949 hold_name
= kmem_asprintf("%%%s", zc
->zc_value
);
4951 error
= dsl_dataset_snapshot_tmp(zc
->zc_name
, snap_name
, minor
,
4954 (void) strcpy(zc
->zc_value
, snap_name
);
4957 zfs_onexit_fd_rele(zc
->zc_cleanup_fd
);
4963 * zc_name name of "to" snapshot
4964 * zc_value name of "from" snapshot
4965 * zc_cookie file descriptor to write diff data on
4968 * dmu_diff_record_t's to the file descriptor
4971 zfs_ioc_diff(zfs_cmd_t
*zc
)
4977 fp
= getf(zc
->zc_cookie
);
4979 return (SET_ERROR(EBADF
));
4983 error
= dmu_diff(zc
->zc_name
, zc
->zc_value
, fp
->f_vnode
, &off
);
4985 if (VOP_SEEK(fp
->f_vnode
, fp
->f_offset
, &off
, NULL
) == 0)
4987 releasef(zc
->zc_cookie
);
4993 * Remove all ACL files in shares dir
4995 #ifdef HAVE_SMB_SHARE
4997 zfs_smb_acl_purge(znode_t
*dzp
)
5000 zap_attribute_t zap
;
5001 zfs_sb_t
*zsb
= ZTOZSB(dzp
);
5004 for (zap_cursor_init(&zc
, zsb
->z_os
, dzp
->z_id
);
5005 (error
= zap_cursor_retrieve(&zc
, &zap
)) == 0;
5006 zap_cursor_advance(&zc
)) {
5007 if ((error
= VOP_REMOVE(ZTOV(dzp
), zap
.za_name
, kcred
,
5011 zap_cursor_fini(&zc
);
5014 #endif /* HAVE_SMB_SHARE */
5017 zfs_ioc_smb_acl(zfs_cmd_t
*zc
)
5019 #ifdef HAVE_SMB_SHARE
5022 vnode_t
*resourcevp
= NULL
;
5031 if ((error
= lookupname(zc
->zc_value
, UIO_SYSSPACE
,
5032 NO_FOLLOW
, NULL
, &vp
)) != 0)
5035 /* Now make sure mntpnt and dataset are ZFS */
5037 if (vp
->v_vfsp
->vfs_fstype
!= zfsfstype
||
5038 (strcmp((char *)refstr_value(vp
->v_vfsp
->vfs_resource
),
5039 zc
->zc_name
) != 0)) {
5041 return (SET_ERROR(EINVAL
));
5049 * Create share dir if its missing.
5051 mutex_enter(&zsb
->z_lock
);
5052 if (zsb
->z_shares_dir
== 0) {
5055 tx
= dmu_tx_create(zsb
->z_os
);
5056 dmu_tx_hold_zap(tx
, MASTER_NODE_OBJ
, TRUE
,
5058 dmu_tx_hold_zap(tx
, DMU_NEW_OBJECT
, FALSE
, NULL
);
5059 error
= dmu_tx_assign(tx
, TXG_WAIT
);
5063 error
= zfs_create_share_dir(zsb
, tx
);
5067 mutex_exit(&zsb
->z_lock
);
5073 mutex_exit(&zsb
->z_lock
);
5075 ASSERT(zsb
->z_shares_dir
);
5076 if ((error
= zfs_zget(zsb
, zsb
->z_shares_dir
, &sharedir
)) != 0) {
5082 switch (zc
->zc_cookie
) {
5083 case ZFS_SMB_ACL_ADD
:
5084 vattr
.va_mask
= AT_MODE
|AT_UID
|AT_GID
|AT_TYPE
;
5085 vattr
.va_mode
= S_IFREG
|0777;
5089 vsec
.vsa_mask
= VSA_ACE
;
5090 vsec
.vsa_aclentp
= &full_access
;
5091 vsec
.vsa_aclentsz
= sizeof (full_access
);
5092 vsec
.vsa_aclcnt
= 1;
5094 error
= VOP_CREATE(ZTOV(sharedir
), zc
->zc_string
,
5095 &vattr
, EXCL
, 0, &resourcevp
, kcred
, 0, NULL
, &vsec
);
5097 VN_RELE(resourcevp
);
5100 case ZFS_SMB_ACL_REMOVE
:
5101 error
= VOP_REMOVE(ZTOV(sharedir
), zc
->zc_string
, kcred
,
5105 case ZFS_SMB_ACL_RENAME
:
5106 if ((error
= get_nvlist(zc
->zc_nvlist_src
,
5107 zc
->zc_nvlist_src_size
, zc
->zc_iflags
, &nvlist
)) != 0) {
5109 VN_RELE(ZTOV(sharedir
));
5113 if (nvlist_lookup_string(nvlist
, ZFS_SMB_ACL_SRC
, &src
) ||
5114 nvlist_lookup_string(nvlist
, ZFS_SMB_ACL_TARGET
,
5117 VN_RELE(ZTOV(sharedir
));
5119 nvlist_free(nvlist
);
5122 error
= VOP_RENAME(ZTOV(sharedir
), src
, ZTOV(sharedir
), target
,
5124 nvlist_free(nvlist
);
5127 case ZFS_SMB_ACL_PURGE
:
5128 error
= zfs_smb_acl_purge(sharedir
);
5132 error
= SET_ERROR(EINVAL
);
5137 VN_RELE(ZTOV(sharedir
));
5143 return (SET_ERROR(ENOTSUP
));
5144 #endif /* HAVE_SMB_SHARE */
5149 * "holds" -> { snapname -> holdname (string), ... }
5150 * (optional) "cleanup_fd" -> fd (int32)
5154 * snapname -> error value (int32)
5160 zfs_ioc_hold(const char *pool
, nvlist_t
*args
, nvlist_t
*errlist
)
5164 int cleanup_fd
= -1;
5168 error
= nvlist_lookup_nvlist(args
, "holds", &holds
);
5170 return (SET_ERROR(EINVAL
));
5172 /* make sure the user didn't pass us any invalid (empty) tags */
5173 for (pair
= nvlist_next_nvpair(holds
, NULL
); pair
!= NULL
;
5174 pair
= nvlist_next_nvpair(holds
, pair
)) {
5177 error
= nvpair_value_string(pair
, &htag
);
5179 return (SET_ERROR(error
));
5181 if (strlen(htag
) == 0)
5182 return (SET_ERROR(EINVAL
));
5185 if (nvlist_lookup_int32(args
, "cleanup_fd", &cleanup_fd
) == 0) {
5186 error
= zfs_onexit_fd_hold(cleanup_fd
, &minor
);
5191 error
= dsl_dataset_user_hold(holds
, minor
, errlist
);
5193 zfs_onexit_fd_rele(cleanup_fd
);
5198 * innvl is not used.
5201 * holdname -> time added (uint64 seconds since epoch)
5207 zfs_ioc_get_holds(const char *snapname
, nvlist_t
*args
, nvlist_t
*outnvl
)
5209 return (dsl_dataset_get_holds(snapname
, outnvl
));
5214 * snapname -> { holdname, ... }
5219 * snapname -> error value (int32)
5225 zfs_ioc_release(const char *pool
, nvlist_t
*holds
, nvlist_t
*errlist
)
5227 return (dsl_dataset_user_release(holds
, errlist
));
5232 * zc_guid flags (ZEVENT_NONBLOCK)
5233 * zc_cleanup_fd zevent file descriptor
5236 * zc_nvlist_dst next nvlist event
5237 * zc_cookie dropped events since last get
5240 zfs_ioc_events_next(zfs_cmd_t
*zc
)
5243 nvlist_t
*event
= NULL
;
5245 uint64_t dropped
= 0;
5248 error
= zfs_zevent_fd_hold(zc
->zc_cleanup_fd
, &minor
, &ze
);
5253 error
= zfs_zevent_next(ze
, &event
,
5254 &zc
->zc_nvlist_dst_size
, &dropped
);
5255 if (event
!= NULL
) {
5256 zc
->zc_cookie
= dropped
;
5257 error
= put_nvlist(zc
, event
);
5261 if (zc
->zc_guid
& ZEVENT_NONBLOCK
)
5264 if ((error
== 0) || (error
!= ENOENT
))
5267 error
= zfs_zevent_wait(ze
);
5272 zfs_zevent_fd_rele(zc
->zc_cleanup_fd
);
5279 * zc_cookie cleared events count
5282 zfs_ioc_events_clear(zfs_cmd_t
*zc
)
5286 zfs_zevent_drain_all(&count
);
5287 zc
->zc_cookie
= count
;
5294 * zc_guid eid | ZEVENT_SEEK_START | ZEVENT_SEEK_END
5295 * zc_cleanup zevent file descriptor
5298 zfs_ioc_events_seek(zfs_cmd_t
*zc
)
5304 error
= zfs_zevent_fd_hold(zc
->zc_cleanup_fd
, &minor
, &ze
);
5308 error
= zfs_zevent_seek(ze
, zc
->zc_guid
);
5309 zfs_zevent_fd_rele(zc
->zc_cleanup_fd
);
5316 * zc_name name of new filesystem or snapshot
5317 * zc_value full name of old snapshot
5320 * zc_cookie space in bytes
5321 * zc_objset_type compressed space in bytes
5322 * zc_perm_action uncompressed space in bytes
5325 zfs_ioc_space_written(zfs_cmd_t
*zc
)
5329 dsl_dataset_t
*new, *old
;
5331 error
= dsl_pool_hold(zc
->zc_name
, FTAG
, &dp
);
5334 error
= dsl_dataset_hold(dp
, zc
->zc_name
, FTAG
, &new);
5336 dsl_pool_rele(dp
, FTAG
);
5339 error
= dsl_dataset_hold(dp
, zc
->zc_value
, FTAG
, &old
);
5341 dsl_dataset_rele(new, FTAG
);
5342 dsl_pool_rele(dp
, FTAG
);
5346 error
= dsl_dataset_space_written(old
, new, &zc
->zc_cookie
,
5347 &zc
->zc_objset_type
, &zc
->zc_perm_action
);
5348 dsl_dataset_rele(old
, FTAG
);
5349 dsl_dataset_rele(new, FTAG
);
5350 dsl_pool_rele(dp
, FTAG
);
5356 * "firstsnap" -> snapshot name
5360 * "used" -> space in bytes
5361 * "compressed" -> compressed space in bytes
5362 * "uncompressed" -> uncompressed space in bytes
5366 zfs_ioc_space_snaps(const char *lastsnap
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
5370 dsl_dataset_t
*new, *old
;
5372 uint64_t used
, comp
, uncomp
;
5374 if (nvlist_lookup_string(innvl
, "firstsnap", &firstsnap
) != 0)
5375 return (SET_ERROR(EINVAL
));
5377 error
= dsl_pool_hold(lastsnap
, FTAG
, &dp
);
5381 error
= dsl_dataset_hold(dp
, lastsnap
, FTAG
, &new);
5382 if (error
== 0 && !new->ds_is_snapshot
) {
5383 dsl_dataset_rele(new, FTAG
);
5384 error
= SET_ERROR(EINVAL
);
5387 dsl_pool_rele(dp
, FTAG
);
5390 error
= dsl_dataset_hold(dp
, firstsnap
, FTAG
, &old
);
5391 if (error
== 0 && !old
->ds_is_snapshot
) {
5392 dsl_dataset_rele(old
, FTAG
);
5393 error
= SET_ERROR(EINVAL
);
5396 dsl_dataset_rele(new, FTAG
);
5397 dsl_pool_rele(dp
, FTAG
);
5401 error
= dsl_dataset_space_wouldfree(old
, new, &used
, &comp
, &uncomp
);
5402 dsl_dataset_rele(old
, FTAG
);
5403 dsl_dataset_rele(new, FTAG
);
5404 dsl_pool_rele(dp
, FTAG
);
5405 fnvlist_add_uint64(outnvl
, "used", used
);
5406 fnvlist_add_uint64(outnvl
, "compressed", comp
);
5407 fnvlist_add_uint64(outnvl
, "uncompressed", uncomp
);
5413 * "fd" -> file descriptor to write stream to (int32)
5414 * (optional) "fromsnap" -> full snap name to send an incremental from
5415 * (optional) "largeblockok" -> (value ignored)
5416 * indicates that blocks > 128KB are permitted
5417 * (optional) "embedok" -> (value ignored)
5418 * presence indicates DRR_WRITE_EMBEDDED records are permitted
5419 * (optional) "compressok" -> (value ignored)
5420 * presence indicates compressed DRR_WRITE records are permitted
5421 * (optional) "resume_object" and "resume_offset" -> (uint64)
5422 * if present, resume send stream from specified object and offset.
5429 zfs_ioc_send_new(const char *snapname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
5433 char *fromname
= NULL
;
5436 boolean_t largeblockok
;
5438 boolean_t compressok
;
5439 uint64_t resumeobj
= 0;
5440 uint64_t resumeoff
= 0;
5442 error
= nvlist_lookup_int32(innvl
, "fd", &fd
);
5444 return (SET_ERROR(EINVAL
));
5446 (void) nvlist_lookup_string(innvl
, "fromsnap", &fromname
);
5448 largeblockok
= nvlist_exists(innvl
, "largeblockok");
5449 embedok
= nvlist_exists(innvl
, "embedok");
5450 compressok
= nvlist_exists(innvl
, "compressok");
5452 (void) nvlist_lookup_uint64(innvl
, "resume_object", &resumeobj
);
5453 (void) nvlist_lookup_uint64(innvl
, "resume_offset", &resumeoff
);
5455 if ((fp
= getf(fd
)) == NULL
)
5456 return (SET_ERROR(EBADF
));
5459 error
= dmu_send(snapname
, fromname
, embedok
, largeblockok
, compressok
,
5460 fd
, resumeobj
, resumeoff
, fp
->f_vnode
, &off
);
5462 if (VOP_SEEK(fp
->f_vnode
, fp
->f_offset
, &off
, NULL
) == 0)
5470 * Determine approximately how large a zfs send stream will be -- the number
5471 * of bytes that will be written to the fd supplied to zfs_ioc_send_new().
5474 * (optional) "from" -> full snap or bookmark name to send an incremental
5476 * (optional) "largeblockok" -> (value ignored)
5477 * indicates that blocks > 128KB are permitted
5478 * (optional) "embedok" -> (value ignored)
5479 * presence indicates DRR_WRITE_EMBEDDED records are permitted
5480 * (optional) "compressok" -> (value ignored)
5481 * presence indicates compressed DRR_WRITE records are permitted
5485 * "space" -> bytes of space (uint64)
5489 zfs_ioc_send_space(const char *snapname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
5492 dsl_dataset_t
*tosnap
;
5495 /* LINTED E_FUNC_SET_NOT_USED */
5496 boolean_t largeblockok
;
5497 /* LINTED E_FUNC_SET_NOT_USED */
5499 boolean_t compressok
;
5502 error
= dsl_pool_hold(snapname
, FTAG
, &dp
);
5506 error
= dsl_dataset_hold(dp
, snapname
, FTAG
, &tosnap
);
5508 dsl_pool_rele(dp
, FTAG
);
5512 largeblockok
= nvlist_exists(innvl
, "largeblockok");
5513 embedok
= nvlist_exists(innvl
, "embedok");
5514 compressok
= nvlist_exists(innvl
, "compressok");
5516 error
= nvlist_lookup_string(innvl
, "from", &fromname
);
5518 if (strchr(fromname
, '@') != NULL
) {
5520 * If from is a snapshot, hold it and use the more
5521 * efficient dmu_send_estimate to estimate send space
5522 * size using deadlists.
5524 dsl_dataset_t
*fromsnap
;
5525 error
= dsl_dataset_hold(dp
, fromname
, FTAG
, &fromsnap
);
5528 error
= dmu_send_estimate(tosnap
, fromsnap
, compressok
,
5530 dsl_dataset_rele(fromsnap
, FTAG
);
5531 } else if (strchr(fromname
, '#') != NULL
) {
5533 * If from is a bookmark, fetch the creation TXG of the
5534 * snapshot it was created from and use that to find
5535 * blocks that were born after it.
5537 zfs_bookmark_phys_t frombm
;
5539 error
= dsl_bookmark_lookup(dp
, fromname
, tosnap
,
5543 error
= dmu_send_estimate_from_txg(tosnap
,
5544 frombm
.zbm_creation_txg
, compressok
, &space
);
5547 * from is not properly formatted as a snapshot or
5550 error
= SET_ERROR(EINVAL
);
5554 // If estimating the size of a full send, use dmu_send_estimate
5555 error
= dmu_send_estimate(tosnap
, NULL
, compressok
, &space
);
5558 fnvlist_add_uint64(outnvl
, "space", space
);
5561 dsl_dataset_rele(tosnap
, FTAG
);
5562 dsl_pool_rele(dp
, FTAG
);
5566 static zfs_ioc_vec_t zfs_ioc_vec
[ZFS_IOC_LAST
- ZFS_IOC_FIRST
];
5569 zfs_ioctl_register_legacy(zfs_ioc_t ioc
, zfs_ioc_legacy_func_t
*func
,
5570 zfs_secpolicy_func_t
*secpolicy
, zfs_ioc_namecheck_t namecheck
,
5571 boolean_t log_history
, zfs_ioc_poolcheck_t pool_check
)
5573 zfs_ioc_vec_t
*vec
= &zfs_ioc_vec
[ioc
- ZFS_IOC_FIRST
];
5575 ASSERT3U(ioc
, >=, ZFS_IOC_FIRST
);
5576 ASSERT3U(ioc
, <, ZFS_IOC_LAST
);
5577 ASSERT3P(vec
->zvec_legacy_func
, ==, NULL
);
5578 ASSERT3P(vec
->zvec_func
, ==, NULL
);
5580 vec
->zvec_legacy_func
= func
;
5581 vec
->zvec_secpolicy
= secpolicy
;
5582 vec
->zvec_namecheck
= namecheck
;
5583 vec
->zvec_allow_log
= log_history
;
5584 vec
->zvec_pool_check
= pool_check
;
5588 * See the block comment at the beginning of this file for details on
5589 * each argument to this function.
5592 zfs_ioctl_register(const char *name
, zfs_ioc_t ioc
, zfs_ioc_func_t
*func
,
5593 zfs_secpolicy_func_t
*secpolicy
, zfs_ioc_namecheck_t namecheck
,
5594 zfs_ioc_poolcheck_t pool_check
, boolean_t smush_outnvlist
,
5595 boolean_t allow_log
)
5597 zfs_ioc_vec_t
*vec
= &zfs_ioc_vec
[ioc
- ZFS_IOC_FIRST
];
5599 ASSERT3U(ioc
, >=, ZFS_IOC_FIRST
);
5600 ASSERT3U(ioc
, <, ZFS_IOC_LAST
);
5601 ASSERT3P(vec
->zvec_legacy_func
, ==, NULL
);
5602 ASSERT3P(vec
->zvec_func
, ==, NULL
);
5604 /* if we are logging, the name must be valid */
5605 ASSERT(!allow_log
|| namecheck
!= NO_NAME
);
5607 vec
->zvec_name
= name
;
5608 vec
->zvec_func
= func
;
5609 vec
->zvec_secpolicy
= secpolicy
;
5610 vec
->zvec_namecheck
= namecheck
;
5611 vec
->zvec_pool_check
= pool_check
;
5612 vec
->zvec_smush_outnvlist
= smush_outnvlist
;
5613 vec
->zvec_allow_log
= allow_log
;
5617 zfs_ioctl_register_pool(zfs_ioc_t ioc
, zfs_ioc_legacy_func_t
*func
,
5618 zfs_secpolicy_func_t
*secpolicy
, boolean_t log_history
,
5619 zfs_ioc_poolcheck_t pool_check
)
5621 zfs_ioctl_register_legacy(ioc
, func
, secpolicy
,
5622 POOL_NAME
, log_history
, pool_check
);
5626 zfs_ioctl_register_dataset_nolog(zfs_ioc_t ioc
, zfs_ioc_legacy_func_t
*func
,
5627 zfs_secpolicy_func_t
*secpolicy
, zfs_ioc_poolcheck_t pool_check
)
5629 zfs_ioctl_register_legacy(ioc
, func
, secpolicy
,
5630 DATASET_NAME
, B_FALSE
, pool_check
);
5634 zfs_ioctl_register_pool_modify(zfs_ioc_t ioc
, zfs_ioc_legacy_func_t
*func
)
5636 zfs_ioctl_register_legacy(ioc
, func
, zfs_secpolicy_config
,
5637 POOL_NAME
, B_TRUE
, POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
);
5641 zfs_ioctl_register_pool_meta(zfs_ioc_t ioc
, zfs_ioc_legacy_func_t
*func
,
5642 zfs_secpolicy_func_t
*secpolicy
)
5644 zfs_ioctl_register_legacy(ioc
, func
, secpolicy
,
5645 NO_NAME
, B_FALSE
, POOL_CHECK_NONE
);
5649 zfs_ioctl_register_dataset_read_secpolicy(zfs_ioc_t ioc
,
5650 zfs_ioc_legacy_func_t
*func
, zfs_secpolicy_func_t
*secpolicy
)
5652 zfs_ioctl_register_legacy(ioc
, func
, secpolicy
,
5653 DATASET_NAME
, B_FALSE
, POOL_CHECK_SUSPENDED
);
5657 zfs_ioctl_register_dataset_read(zfs_ioc_t ioc
, zfs_ioc_legacy_func_t
*func
)
5659 zfs_ioctl_register_dataset_read_secpolicy(ioc
, func
,
5660 zfs_secpolicy_read
);
5664 zfs_ioctl_register_dataset_modify(zfs_ioc_t ioc
, zfs_ioc_legacy_func_t
*func
,
5665 zfs_secpolicy_func_t
*secpolicy
)
5667 zfs_ioctl_register_legacy(ioc
, func
, secpolicy
,
5668 DATASET_NAME
, B_TRUE
, POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
);
5672 zfs_ioctl_init(void)
5674 zfs_ioctl_register("snapshot", ZFS_IOC_SNAPSHOT
,
5675 zfs_ioc_snapshot
, zfs_secpolicy_snapshot
, POOL_NAME
,
5676 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5678 zfs_ioctl_register("log_history", ZFS_IOC_LOG_HISTORY
,
5679 zfs_ioc_log_history
, zfs_secpolicy_log_history
, NO_NAME
,
5680 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_FALSE
, B_FALSE
);
5682 zfs_ioctl_register("space_snaps", ZFS_IOC_SPACE_SNAPS
,
5683 zfs_ioc_space_snaps
, zfs_secpolicy_read
, DATASET_NAME
,
5684 POOL_CHECK_SUSPENDED
, B_FALSE
, B_FALSE
);
5686 zfs_ioctl_register("send", ZFS_IOC_SEND_NEW
,
5687 zfs_ioc_send_new
, zfs_secpolicy_send_new
, DATASET_NAME
,
5688 POOL_CHECK_SUSPENDED
, B_FALSE
, B_FALSE
);
5690 zfs_ioctl_register("send_space", ZFS_IOC_SEND_SPACE
,
5691 zfs_ioc_send_space
, zfs_secpolicy_read
, DATASET_NAME
,
5692 POOL_CHECK_SUSPENDED
, B_FALSE
, B_FALSE
);
5694 zfs_ioctl_register("create", ZFS_IOC_CREATE
,
5695 zfs_ioc_create
, zfs_secpolicy_create_clone
, DATASET_NAME
,
5696 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5698 zfs_ioctl_register("clone", ZFS_IOC_CLONE
,
5699 zfs_ioc_clone
, zfs_secpolicy_create_clone
, DATASET_NAME
,
5700 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5702 zfs_ioctl_register("destroy_snaps", ZFS_IOC_DESTROY_SNAPS
,
5703 zfs_ioc_destroy_snaps
, zfs_secpolicy_destroy_snaps
, POOL_NAME
,
5704 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5706 zfs_ioctl_register("hold", ZFS_IOC_HOLD
,
5707 zfs_ioc_hold
, zfs_secpolicy_hold
, POOL_NAME
,
5708 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5709 zfs_ioctl_register("release", ZFS_IOC_RELEASE
,
5710 zfs_ioc_release
, zfs_secpolicy_release
, POOL_NAME
,
5711 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5713 zfs_ioctl_register("get_holds", ZFS_IOC_GET_HOLDS
,
5714 zfs_ioc_get_holds
, zfs_secpolicy_read
, DATASET_NAME
,
5715 POOL_CHECK_SUSPENDED
, B_FALSE
, B_FALSE
);
5717 zfs_ioctl_register("rollback", ZFS_IOC_ROLLBACK
,
5718 zfs_ioc_rollback
, zfs_secpolicy_rollback
, DATASET_NAME
,
5719 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_FALSE
, B_TRUE
);
5721 zfs_ioctl_register("bookmark", ZFS_IOC_BOOKMARK
,
5722 zfs_ioc_bookmark
, zfs_secpolicy_bookmark
, POOL_NAME
,
5723 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5725 zfs_ioctl_register("get_bookmarks", ZFS_IOC_GET_BOOKMARKS
,
5726 zfs_ioc_get_bookmarks
, zfs_secpolicy_read
, DATASET_NAME
,
5727 POOL_CHECK_SUSPENDED
, B_FALSE
, B_FALSE
);
5729 zfs_ioctl_register("destroy_bookmarks", ZFS_IOC_DESTROY_BOOKMARKS
,
5730 zfs_ioc_destroy_bookmarks
, zfs_secpolicy_destroy_bookmarks
,
5732 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5734 zfs_ioctl_register("receive", ZFS_IOC_RECV_NEW
,
5735 zfs_ioc_recv_new
, zfs_secpolicy_recv_new
, DATASET_NAME
,
5736 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5738 /* IOCTLS that use the legacy function signature */
5740 zfs_ioctl_register_legacy(ZFS_IOC_POOL_FREEZE
, zfs_ioc_pool_freeze
,
5741 zfs_secpolicy_config
, NO_NAME
, B_FALSE
, POOL_CHECK_READONLY
);
5743 zfs_ioctl_register_pool(ZFS_IOC_POOL_CREATE
, zfs_ioc_pool_create
,
5744 zfs_secpolicy_config
, B_TRUE
, POOL_CHECK_NONE
);
5745 zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_SCAN
,
5747 zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_UPGRADE
,
5748 zfs_ioc_pool_upgrade
);
5749 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_ADD
,
5751 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_REMOVE
,
5752 zfs_ioc_vdev_remove
);
5753 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SET_STATE
,
5754 zfs_ioc_vdev_set_state
);
5755 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_ATTACH
,
5756 zfs_ioc_vdev_attach
);
5757 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_DETACH
,
5758 zfs_ioc_vdev_detach
);
5759 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SETPATH
,
5760 zfs_ioc_vdev_setpath
);
5761 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SETFRU
,
5762 zfs_ioc_vdev_setfru
);
5763 zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_SET_PROPS
,
5764 zfs_ioc_pool_set_props
);
5765 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SPLIT
,
5766 zfs_ioc_vdev_split
);
5767 zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_REGUID
,
5768 zfs_ioc_pool_reguid
);
5770 zfs_ioctl_register_pool_meta(ZFS_IOC_POOL_CONFIGS
,
5771 zfs_ioc_pool_configs
, zfs_secpolicy_none
);
5772 zfs_ioctl_register_pool_meta(ZFS_IOC_POOL_TRYIMPORT
,
5773 zfs_ioc_pool_tryimport
, zfs_secpolicy_config
);
5774 zfs_ioctl_register_pool_meta(ZFS_IOC_INJECT_FAULT
,
5775 zfs_ioc_inject_fault
, zfs_secpolicy_inject
);
5776 zfs_ioctl_register_pool_meta(ZFS_IOC_CLEAR_FAULT
,
5777 zfs_ioc_clear_fault
, zfs_secpolicy_inject
);
5778 zfs_ioctl_register_pool_meta(ZFS_IOC_INJECT_LIST_NEXT
,
5779 zfs_ioc_inject_list_next
, zfs_secpolicy_inject
);
5782 * pool destroy, and export don't log the history as part of
5783 * zfsdev_ioctl, but rather zfs_ioc_pool_export
5784 * does the logging of those commands.
5786 zfs_ioctl_register_pool(ZFS_IOC_POOL_DESTROY
, zfs_ioc_pool_destroy
,
5787 zfs_secpolicy_config
, B_FALSE
, POOL_CHECK_SUSPENDED
);
5788 zfs_ioctl_register_pool(ZFS_IOC_POOL_EXPORT
, zfs_ioc_pool_export
,
5789 zfs_secpolicy_config
, B_FALSE
, POOL_CHECK_SUSPENDED
);
5791 zfs_ioctl_register_pool(ZFS_IOC_POOL_STATS
, zfs_ioc_pool_stats
,
5792 zfs_secpolicy_read
, B_FALSE
, POOL_CHECK_NONE
);
5793 zfs_ioctl_register_pool(ZFS_IOC_POOL_GET_PROPS
, zfs_ioc_pool_get_props
,
5794 zfs_secpolicy_read
, B_FALSE
, POOL_CHECK_NONE
);
5796 zfs_ioctl_register_pool(ZFS_IOC_ERROR_LOG
, zfs_ioc_error_log
,
5797 zfs_secpolicy_inject
, B_FALSE
, POOL_CHECK_SUSPENDED
);
5798 zfs_ioctl_register_pool(ZFS_IOC_DSOBJ_TO_DSNAME
,
5799 zfs_ioc_dsobj_to_dsname
,
5800 zfs_secpolicy_diff
, B_FALSE
, POOL_CHECK_SUSPENDED
);
5801 zfs_ioctl_register_pool(ZFS_IOC_POOL_GET_HISTORY
,
5802 zfs_ioc_pool_get_history
,
5803 zfs_secpolicy_config
, B_FALSE
, POOL_CHECK_SUSPENDED
);
5805 zfs_ioctl_register_pool(ZFS_IOC_POOL_IMPORT
, zfs_ioc_pool_import
,
5806 zfs_secpolicy_config
, B_TRUE
, POOL_CHECK_NONE
);
5808 zfs_ioctl_register_pool(ZFS_IOC_CLEAR
, zfs_ioc_clear
,
5809 zfs_secpolicy_config
, B_TRUE
, POOL_CHECK_NONE
);
5810 zfs_ioctl_register_pool(ZFS_IOC_POOL_REOPEN
, zfs_ioc_pool_reopen
,
5811 zfs_secpolicy_config
, B_TRUE
, POOL_CHECK_SUSPENDED
);
5813 zfs_ioctl_register_dataset_read(ZFS_IOC_SPACE_WRITTEN
,
5814 zfs_ioc_space_written
);
5815 zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_RECVD_PROPS
,
5816 zfs_ioc_objset_recvd_props
);
5817 zfs_ioctl_register_dataset_read(ZFS_IOC_NEXT_OBJ
,
5819 zfs_ioctl_register_dataset_read(ZFS_IOC_GET_FSACL
,
5821 zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_STATS
,
5822 zfs_ioc_objset_stats
);
5823 zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_ZPLPROPS
,
5824 zfs_ioc_objset_zplprops
);
5825 zfs_ioctl_register_dataset_read(ZFS_IOC_DATASET_LIST_NEXT
,
5826 zfs_ioc_dataset_list_next
);
5827 zfs_ioctl_register_dataset_read(ZFS_IOC_SNAPSHOT_LIST_NEXT
,
5828 zfs_ioc_snapshot_list_next
);
5829 zfs_ioctl_register_dataset_read(ZFS_IOC_SEND_PROGRESS
,
5830 zfs_ioc_send_progress
);
5832 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_DIFF
,
5833 zfs_ioc_diff
, zfs_secpolicy_diff
);
5834 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_OBJ_TO_STATS
,
5835 zfs_ioc_obj_to_stats
, zfs_secpolicy_diff
);
5836 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_OBJ_TO_PATH
,
5837 zfs_ioc_obj_to_path
, zfs_secpolicy_diff
);
5838 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_USERSPACE_ONE
,
5839 zfs_ioc_userspace_one
, zfs_secpolicy_userspace_one
);
5840 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_USERSPACE_MANY
,
5841 zfs_ioc_userspace_many
, zfs_secpolicy_userspace_many
);
5842 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_SEND
,
5843 zfs_ioc_send
, zfs_secpolicy_send
);
5845 zfs_ioctl_register_dataset_modify(ZFS_IOC_SET_PROP
, zfs_ioc_set_prop
,
5846 zfs_secpolicy_none
);
5847 zfs_ioctl_register_dataset_modify(ZFS_IOC_DESTROY
, zfs_ioc_destroy
,
5848 zfs_secpolicy_destroy
);
5849 zfs_ioctl_register_dataset_modify(ZFS_IOC_RENAME
, zfs_ioc_rename
,
5850 zfs_secpolicy_rename
);
5851 zfs_ioctl_register_dataset_modify(ZFS_IOC_RECV
, zfs_ioc_recv
,
5852 zfs_secpolicy_recv
);
5853 zfs_ioctl_register_dataset_modify(ZFS_IOC_PROMOTE
, zfs_ioc_promote
,
5854 zfs_secpolicy_promote
);
5855 zfs_ioctl_register_dataset_modify(ZFS_IOC_INHERIT_PROP
,
5856 zfs_ioc_inherit_prop
, zfs_secpolicy_inherit_prop
);
5857 zfs_ioctl_register_dataset_modify(ZFS_IOC_SET_FSACL
, zfs_ioc_set_fsacl
,
5858 zfs_secpolicy_set_fsacl
);
5860 zfs_ioctl_register_dataset_nolog(ZFS_IOC_SHARE
, zfs_ioc_share
,
5861 zfs_secpolicy_share
, POOL_CHECK_NONE
);
5862 zfs_ioctl_register_dataset_nolog(ZFS_IOC_SMB_ACL
, zfs_ioc_smb_acl
,
5863 zfs_secpolicy_smb_acl
, POOL_CHECK_NONE
);
5864 zfs_ioctl_register_dataset_nolog(ZFS_IOC_USERSPACE_UPGRADE
,
5865 zfs_ioc_userspace_upgrade
, zfs_secpolicy_userspace_upgrade
,
5866 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
);
5867 zfs_ioctl_register_dataset_nolog(ZFS_IOC_TMP_SNAPSHOT
,
5868 zfs_ioc_tmp_snapshot
, zfs_secpolicy_tmp_snapshot
,
5869 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
);
5874 zfs_ioctl_register_legacy(ZFS_IOC_EVENTS_NEXT
, zfs_ioc_events_next
,
5875 zfs_secpolicy_config
, NO_NAME
, B_FALSE
, POOL_CHECK_NONE
);
5876 zfs_ioctl_register_legacy(ZFS_IOC_EVENTS_CLEAR
, zfs_ioc_events_clear
,
5877 zfs_secpolicy_config
, NO_NAME
, B_FALSE
, POOL_CHECK_NONE
);
5878 zfs_ioctl_register_legacy(ZFS_IOC_EVENTS_SEEK
, zfs_ioc_events_seek
,
5879 zfs_secpolicy_config
, NO_NAME
, B_FALSE
, POOL_CHECK_NONE
);
5883 pool_status_check(const char *name
, zfs_ioc_namecheck_t type
,
5884 zfs_ioc_poolcheck_t check
)
5889 ASSERT(type
== POOL_NAME
|| type
== DATASET_NAME
);
5891 if (check
& POOL_CHECK_NONE
)
5894 error
= spa_open(name
, &spa
, FTAG
);
5896 if ((check
& POOL_CHECK_SUSPENDED
) && spa_suspended(spa
))
5897 error
= SET_ERROR(EAGAIN
);
5898 else if ((check
& POOL_CHECK_READONLY
) && !spa_writeable(spa
))
5899 error
= SET_ERROR(EROFS
);
5900 spa_close(spa
, FTAG
);
5906 zfsdev_get_state_impl(minor_t minor
, enum zfsdev_state_type which
)
5910 for (zs
= zfsdev_state_list
; zs
!= NULL
; zs
= zs
->zs_next
) {
5911 if (zs
->zs_minor
== minor
) {
5915 return (zs
->zs_onexit
);
5917 return (zs
->zs_zevent
);
5928 zfsdev_get_state(minor_t minor
, enum zfsdev_state_type which
)
5932 ptr
= zfsdev_get_state_impl(minor
, which
);
5938 zfsdev_getminor(struct file
*filp
, minor_t
*minorp
)
5940 zfsdev_state_t
*zs
, *fpd
;
5942 ASSERT(filp
!= NULL
);
5943 ASSERT(!MUTEX_HELD(&zfsdev_state_lock
));
5945 fpd
= filp
->private_data
;
5949 mutex_enter(&zfsdev_state_lock
);
5951 for (zs
= zfsdev_state_list
; zs
!= NULL
; zs
= zs
->zs_next
) {
5953 if (zs
->zs_minor
== -1)
5957 *minorp
= fpd
->zs_minor
;
5958 mutex_exit(&zfsdev_state_lock
);
5963 mutex_exit(&zfsdev_state_lock
);
5969 * Find a free minor number. The zfsdev_state_list is expected to
5970 * be short since it is only a list of currently open file handles.
5973 zfsdev_minor_alloc(void)
5975 static minor_t last_minor
= 0;
5978 ASSERT(MUTEX_HELD(&zfsdev_state_lock
));
5980 for (m
= last_minor
+ 1; m
!= last_minor
; m
++) {
5981 if (m
> ZFSDEV_MAX_MINOR
)
5983 if (zfsdev_get_state_impl(m
, ZST_ALL
) == NULL
) {
5993 zfsdev_state_init(struct file
*filp
)
5995 zfsdev_state_t
*zs
, *zsprev
= NULL
;
5997 boolean_t newzs
= B_FALSE
;
5999 ASSERT(MUTEX_HELD(&zfsdev_state_lock
));
6001 minor
= zfsdev_minor_alloc();
6003 return (SET_ERROR(ENXIO
));
6005 for (zs
= zfsdev_state_list
; zs
!= NULL
; zs
= zs
->zs_next
) {
6006 if (zs
->zs_minor
== -1)
6012 zs
= kmem_zalloc(sizeof (zfsdev_state_t
), KM_SLEEP
);
6017 filp
->private_data
= zs
;
6019 zfs_onexit_init((zfs_onexit_t
**)&zs
->zs_onexit
);
6020 zfs_zevent_init((zfs_zevent_t
**)&zs
->zs_zevent
);
6024 * In order to provide for lock-free concurrent read access
6025 * to the minor list in zfsdev_get_state_impl(), new entries
6026 * must be completely written before linking them into the
6027 * list whereas existing entries are already linked; the last
6028 * operation must be updating zs_minor (from -1 to the new
6032 zs
->zs_minor
= minor
;
6034 zsprev
->zs_next
= zs
;
6037 zs
->zs_minor
= minor
;
6044 zfsdev_state_destroy(struct file
*filp
)
6048 ASSERT(MUTEX_HELD(&zfsdev_state_lock
));
6049 ASSERT(filp
->private_data
!= NULL
);
6051 zs
= filp
->private_data
;
6053 zfs_onexit_destroy(zs
->zs_onexit
);
6054 zfs_zevent_destroy(zs
->zs_zevent
);
6060 zfsdev_open(struct inode
*ino
, struct file
*filp
)
6064 mutex_enter(&zfsdev_state_lock
);
6065 error
= zfsdev_state_init(filp
);
6066 mutex_exit(&zfsdev_state_lock
);
6072 zfsdev_release(struct inode
*ino
, struct file
*filp
)
6076 mutex_enter(&zfsdev_state_lock
);
6077 error
= zfsdev_state_destroy(filp
);
6078 mutex_exit(&zfsdev_state_lock
);
6084 zfsdev_ioctl(struct file
*filp
, unsigned cmd
, unsigned long arg
)
6088 int error
, rc
, flag
= 0;
6089 const zfs_ioc_vec_t
*vec
;
6090 char *saved_poolname
= NULL
;
6091 nvlist_t
*innvl
= NULL
;
6092 fstrans_cookie_t cookie
;
6094 vecnum
= cmd
- ZFS_IOC_FIRST
;
6095 if (vecnum
>= sizeof (zfs_ioc_vec
) / sizeof (zfs_ioc_vec
[0]))
6096 return (-SET_ERROR(EINVAL
));
6097 vec
= &zfs_ioc_vec
[vecnum
];
6100 * The registered ioctl list may be sparse, verify that either
6101 * a normal or legacy handler are registered.
6103 if (vec
->zvec_func
== NULL
&& vec
->zvec_legacy_func
== NULL
)
6104 return (-SET_ERROR(EINVAL
));
6106 zc
= kmem_zalloc(sizeof (zfs_cmd_t
), KM_SLEEP
);
6108 error
= ddi_copyin((void *)arg
, zc
, sizeof (zfs_cmd_t
), flag
);
6110 error
= SET_ERROR(EFAULT
);
6114 zc
->zc_iflags
= flag
& FKIOCTL
;
6115 if (zc
->zc_nvlist_src_size
> MAX_NVLIST_SRC_SIZE
) {
6117 * Make sure the user doesn't pass in an insane value for
6118 * zc_nvlist_src_size. We have to check, since we will end
6119 * up allocating that much memory inside of get_nvlist(). This
6120 * prevents a nefarious user from allocating tons of kernel
6123 * Also, we return EINVAL instead of ENOMEM here. The reason
6124 * being that returning ENOMEM from an ioctl() has a special
6125 * connotation; that the user's size value is too small and
6126 * needs to be expanded to hold the nvlist. See
6127 * zcmd_expand_dst_nvlist() for details.
6129 error
= SET_ERROR(EINVAL
); /* User's size too big */
6131 } else if (zc
->zc_nvlist_src_size
!= 0) {
6132 error
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
6133 zc
->zc_iflags
, &innvl
);
6139 * Ensure that all pool/dataset names are valid before we pass down to
6142 zc
->zc_name
[sizeof (zc
->zc_name
) - 1] = '\0';
6143 switch (vec
->zvec_namecheck
) {
6145 if (pool_namecheck(zc
->zc_name
, NULL
, NULL
) != 0)
6146 error
= SET_ERROR(EINVAL
);
6148 error
= pool_status_check(zc
->zc_name
,
6149 vec
->zvec_namecheck
, vec
->zvec_pool_check
);
6153 if (dataset_namecheck(zc
->zc_name
, NULL
, NULL
) != 0)
6154 error
= SET_ERROR(EINVAL
);
6156 error
= pool_status_check(zc
->zc_name
,
6157 vec
->zvec_namecheck
, vec
->zvec_pool_check
);
6165 if (error
== 0 && !(flag
& FKIOCTL
)) {
6166 cookie
= spl_fstrans_mark();
6167 error
= vec
->zvec_secpolicy(zc
, innvl
, CRED());
6168 spl_fstrans_unmark(cookie
);
6174 /* legacy ioctls can modify zc_name */
6175 saved_poolname
= strdup(zc
->zc_name
);
6176 if (saved_poolname
== NULL
) {
6177 error
= SET_ERROR(ENOMEM
);
6180 saved_poolname
[strcspn(saved_poolname
, "/@#")] = '\0';
6183 if (vec
->zvec_func
!= NULL
) {
6187 nvlist_t
*lognv
= NULL
;
6189 ASSERT(vec
->zvec_legacy_func
== NULL
);
6192 * Add the innvl to the lognv before calling the func,
6193 * in case the func changes the innvl.
6195 if (vec
->zvec_allow_log
) {
6196 lognv
= fnvlist_alloc();
6197 fnvlist_add_string(lognv
, ZPOOL_HIST_IOCTL
,
6199 if (!nvlist_empty(innvl
)) {
6200 fnvlist_add_nvlist(lognv
, ZPOOL_HIST_INPUT_NVL
,
6205 outnvl
= fnvlist_alloc();
6206 cookie
= spl_fstrans_mark();
6207 error
= vec
->zvec_func(zc
->zc_name
, innvl
, outnvl
);
6208 spl_fstrans_unmark(cookie
);
6210 if (error
== 0 && vec
->zvec_allow_log
&&
6211 spa_open(zc
->zc_name
, &spa
, FTAG
) == 0) {
6212 if (!nvlist_empty(outnvl
)) {
6213 fnvlist_add_nvlist(lognv
, ZPOOL_HIST_OUTPUT_NVL
,
6216 (void) spa_history_log_nvl(spa
, lognv
);
6217 spa_close(spa
, FTAG
);
6219 fnvlist_free(lognv
);
6221 if (!nvlist_empty(outnvl
) || zc
->zc_nvlist_dst_size
!= 0) {
6223 if (vec
->zvec_smush_outnvlist
) {
6224 smusherror
= nvlist_smush(outnvl
,
6225 zc
->zc_nvlist_dst_size
);
6227 if (smusherror
== 0)
6228 puterror
= put_nvlist(zc
, outnvl
);
6234 nvlist_free(outnvl
);
6236 cookie
= spl_fstrans_mark();
6237 error
= vec
->zvec_legacy_func(zc
);
6238 spl_fstrans_unmark(cookie
);
6243 rc
= ddi_copyout(zc
, (void *)arg
, sizeof (zfs_cmd_t
), flag
);
6244 if (error
== 0 && rc
!= 0)
6245 error
= SET_ERROR(EFAULT
);
6246 if (error
== 0 && vec
->zvec_allow_log
) {
6247 char *s
= tsd_get(zfs_allow_log_key
);
6250 (void) tsd_set(zfs_allow_log_key
, saved_poolname
);
6252 if (saved_poolname
!= NULL
)
6253 strfree(saved_poolname
);
6256 kmem_free(zc
, sizeof (zfs_cmd_t
));
6260 #ifdef CONFIG_COMPAT
6262 zfsdev_compat_ioctl(struct file
*filp
, unsigned cmd
, unsigned long arg
)
6264 return (zfsdev_ioctl(filp
, cmd
, arg
));
6267 #define zfsdev_compat_ioctl NULL
6270 static const struct file_operations zfsdev_fops
= {
6271 .open
= zfsdev_open
,
6272 .release
= zfsdev_release
,
6273 .unlocked_ioctl
= zfsdev_ioctl
,
6274 .compat_ioctl
= zfsdev_compat_ioctl
,
6275 .owner
= THIS_MODULE
,
6278 static struct miscdevice zfs_misc
= {
6279 .minor
= MISC_DYNAMIC_MINOR
,
6281 .fops
= &zfsdev_fops
,
6289 mutex_init(&zfsdev_state_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
6290 zfsdev_state_list
= kmem_zalloc(sizeof (zfsdev_state_t
), KM_SLEEP
);
6291 zfsdev_state_list
->zs_minor
= -1;
6293 error
= misc_register(&zfs_misc
);
6295 printk(KERN_INFO
"ZFS: misc_register() failed %d\n", error
);
6305 zfsdev_state_t
*zs
, *zsprev
= NULL
;
6307 misc_deregister(&zfs_misc
);
6308 mutex_destroy(&zfsdev_state_lock
);
6310 for (zs
= zfsdev_state_list
; zs
!= NULL
; zs
= zs
->zs_next
) {
6312 kmem_free(zsprev
, sizeof (zfsdev_state_t
));
6316 kmem_free(zsprev
, sizeof (zfsdev_state_t
));
6320 zfs_allow_log_destroy(void *arg
)
6322 char *poolname
= arg
;
6324 if (poolname
!= NULL
)
6329 #define ZFS_DEBUG_STR " (DEBUG mode)"
6331 #define ZFS_DEBUG_STR ""
6339 error
= -vn_set_pwd("/");
6342 "ZFS: Warning unable to set pwd to '/': %d\n", error
);
6346 if ((error
= -zvol_init()) != 0)
6349 spa_init(FREAD
| FWRITE
);
6354 if ((error
= zfs_attach()) != 0)
6357 tsd_create(&zfs_fsyncer_key
, NULL
);
6358 tsd_create(&rrw_tsd_key
, rrw_tsd_destroy
);
6359 tsd_create(&zfs_allow_log_key
, zfs_allow_log_destroy
);
6361 printk(KERN_NOTICE
"ZFS: Loaded module v%s-%s%s, "
6362 "ZFS pool version %s, ZFS filesystem version %s\n",
6363 ZFS_META_VERSION
, ZFS_META_RELEASE
, ZFS_DEBUG_STR
,
6364 SPA_VERSION_STRING
, ZPL_VERSION_STRING
);
6365 #ifndef CONFIG_FS_POSIX_ACL
6366 printk(KERN_NOTICE
"ZFS: Posix ACLs disabled by kernel\n");
6367 #endif /* CONFIG_FS_POSIX_ACL */
6375 printk(KERN_NOTICE
"ZFS: Failed to Load ZFS Filesystem v%s-%s%s"
6376 ", rc = %d\n", ZFS_META_VERSION
, ZFS_META_RELEASE
,
6377 ZFS_DEBUG_STR
, error
);
6390 tsd_destroy(&zfs_fsyncer_key
);
6391 tsd_destroy(&rrw_tsd_key
);
6392 tsd_destroy(&zfs_allow_log_key
);
6394 printk(KERN_NOTICE
"ZFS: Unloaded module v%s-%s%s\n",
6395 ZFS_META_VERSION
, ZFS_META_RELEASE
, ZFS_DEBUG_STR
);
6402 MODULE_DESCRIPTION("ZFS");
6403 MODULE_AUTHOR(ZFS_META_AUTHOR
);
6404 MODULE_LICENSE(ZFS_META_LICENSE
);
6405 MODULE_VERSION(ZFS_META_VERSION
"-" ZFS_META_RELEASE
);
6406 #endif /* HAVE_SPL */