4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Portions Copyright 2011 Martin Matuska
25 * Portions Copyright 2012 Pawel Jakub Dawidek <pawel@dawidek.net>
26 * Copyright (c) 2012, Joyent, Inc. All rights reserved.
27 * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
28 * Copyright (c) 2012, Joyent, Inc. All rights reserved.
29 * Copyright (c) 201i3 by Delphix. All rights reserved.
30 * Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
31 * Copyright (c) 2013 Steven Hartland. All rights reserved.
32 * Copyright (c) 2014, Nexenta Systems, Inc. All rights reserved.
38 * This file handles the ioctls to /dev/zfs, used for configuring ZFS storage
39 * pools and filesystems, e.g. with /sbin/zfs and /sbin/zpool.
41 * There are two ways that we handle ioctls: the legacy way where almost
42 * all of the logic is in the ioctl callback, and the new way where most
43 * of the marshalling is handled in the common entry point, zfsdev_ioctl().
45 * Non-legacy ioctls should be registered by calling
46 * zfs_ioctl_register() from zfs_ioctl_init(). The ioctl is invoked
47 * from userland by lzc_ioctl().
49 * The registration arguments are as follows:
52 * The name of the ioctl. This is used for history logging. If the
53 * ioctl returns successfully (the callback returns 0), and allow_log
54 * is true, then a history log entry will be recorded with the input &
55 * output nvlists. The log entry can be printed with "zpool history -i".
58 * The ioctl request number, which userland will pass to ioctl(2).
59 * The ioctl numbers can change from release to release, because
60 * the caller (libzfs) must be matched to the kernel.
62 * zfs_secpolicy_func_t *secpolicy
63 * This function will be called before the zfs_ioc_func_t, to
64 * determine if this operation is permitted. It should return EPERM
65 * on failure, and 0 on success. Checks include determining if the
66 * dataset is visible in this zone, and if the user has either all
67 * zfs privileges in the zone (SYS_MOUNT), or has been granted permission
68 * to do this operation on this dataset with "zfs allow".
70 * zfs_ioc_namecheck_t namecheck
71 * This specifies what to expect in the zfs_cmd_t:zc_name -- a pool
72 * name, a dataset name, or nothing. If the name is not well-formed,
73 * the ioctl will fail and the callback will not be called.
74 * Therefore, the callback can assume that the name is well-formed
75 * (e.g. is null-terminated, doesn't have more than one '@' character,
76 * doesn't have invalid characters).
78 * zfs_ioc_poolcheck_t pool_check
79 * This specifies requirements on the pool state. If the pool does
80 * not meet them (is suspended or is readonly), the ioctl will fail
81 * and the callback will not be called. If any checks are specified
82 * (i.e. it is not POOL_CHECK_NONE), namecheck must not be NO_NAME.
83 * Multiple checks can be or-ed together (e.g. POOL_CHECK_SUSPENDED |
84 * POOL_CHECK_READONLY).
86 * boolean_t smush_outnvlist
87 * If smush_outnvlist is true, then the output is presumed to be a
88 * list of errors, and it will be "smushed" down to fit into the
89 * caller's buffer, by removing some entries and replacing them with a
90 * single "N_MORE_ERRORS" entry indicating how many were removed. See
91 * nvlist_smush() for details. If smush_outnvlist is false, and the
92 * outnvlist does not fit into the userland-provided buffer, then the
93 * ioctl will fail with ENOMEM.
95 * zfs_ioc_func_t *func
96 * The callback function that will perform the operation.
98 * The callback should return 0 on success, or an error number on
99 * failure. If the function fails, the userland ioctl will return -1,
100 * and errno will be set to the callback's return value. The callback
101 * will be called with the following arguments:
104 * The name of the pool or dataset to operate on, from
105 * zfs_cmd_t:zc_name. The 'namecheck' argument specifies the
106 * expected type (pool, dataset, or none).
109 * The input nvlist, deserialized from zfs_cmd_t:zc_nvlist_src. Or
110 * NULL if no input nvlist was provided. Changes to this nvlist are
111 * ignored. If the input nvlist could not be deserialized, the
112 * ioctl will fail and the callback will not be called.
115 * The output nvlist, initially empty. The callback can fill it in,
116 * and it will be returned to userland by serializing it into
117 * zfs_cmd_t:zc_nvlist_dst. If it is non-empty, and serialization
118 * fails (e.g. because the caller didn't supply a large enough
119 * buffer), then the overall ioctl will fail. See the
120 * 'smush_nvlist' argument above for additional behaviors.
122 * There are two typical uses of the output nvlist:
123 * - To return state, e.g. property values. In this case,
124 * smush_outnvlist should be false. If the buffer was not large
125 * enough, the caller will reallocate a larger buffer and try
128 * - To return multiple errors from an ioctl which makes on-disk
129 * changes. In this case, smush_outnvlist should be true.
130 * Ioctls which make on-disk modifications should generally not
131 * use the outnvl if they succeed, because the caller can not
132 * distinguish between the operation failing, and
133 * deserialization failing.
136 #include <sys/types.h>
137 #include <sys/param.h>
138 #include <sys/errno.h>
141 #include <sys/modctl.h>
142 #include <sys/open.h>
143 #include <sys/file.h>
144 #include <sys/kmem.h>
145 #include <sys/conf.h>
146 #include <sys/cmn_err.h>
147 #include <sys/stat.h>
148 #include <sys/zfs_ioctl.h>
149 #include <sys/zfs_vfsops.h>
150 #include <sys/zfs_znode.h>
153 #include <sys/spa_impl.h>
154 #include <sys/vdev.h>
155 #include <sys/priv_impl.h>
157 #include <sys/dsl_dir.h>
158 #include <sys/dsl_dataset.h>
159 #include <sys/dsl_prop.h>
160 #include <sys/dsl_deleg.h>
161 #include <sys/dmu_objset.h>
162 #include <sys/dmu_impl.h>
163 #include <sys/dmu_tx.h>
165 #include <sys/sunddi.h>
166 #include <sys/sunldi.h>
167 #include <sys/policy.h>
168 #include <sys/zone.h>
169 #include <sys/nvpair.h>
170 #include <sys/pathname.h>
171 #include <sys/mount.h>
173 #include <sys/fs/zfs.h>
174 #include <sys/zfs_ctldir.h>
175 #include <sys/zfs_dir.h>
176 #include <sys/zfs_onexit.h>
177 #include <sys/zvol.h>
178 #include <sys/dsl_scan.h>
179 #include <sharefs/share.h>
180 #include <sys/fm/util.h>
182 #include <sys/dmu_send.h>
183 #include <sys/dsl_destroy.h>
184 #include <sys/dsl_bookmark.h>
185 #include <sys/dsl_userhold.h>
186 #include <sys/zfeature.h>
188 #include <linux/miscdevice.h>
190 #include "zfs_namecheck.h"
191 #include "zfs_prop.h"
192 #include "zfs_deleg.h"
193 #include "zfs_comutil.h"
195 kmutex_t zfsdev_state_lock
;
196 zfsdev_state_t
*zfsdev_state_list
;
198 extern void zfs_init(void);
199 extern void zfs_fini(void);
201 uint_t zfs_fsyncer_key
;
202 extern uint_t rrw_tsd_key
;
203 static uint_t zfs_allow_log_key
;
205 typedef int zfs_ioc_legacy_func_t(zfs_cmd_t
*);
206 typedef int zfs_ioc_func_t(const char *, nvlist_t
*, nvlist_t
*);
207 typedef int zfs_secpolicy_func_t(zfs_cmd_t
*, nvlist_t
*, cred_t
*);
213 } zfs_ioc_namecheck_t
;
216 POOL_CHECK_NONE
= 1 << 0,
217 POOL_CHECK_SUSPENDED
= 1 << 1,
218 POOL_CHECK_READONLY
= 1 << 2,
219 } zfs_ioc_poolcheck_t
;
221 typedef struct zfs_ioc_vec
{
222 zfs_ioc_legacy_func_t
*zvec_legacy_func
;
223 zfs_ioc_func_t
*zvec_func
;
224 zfs_secpolicy_func_t
*zvec_secpolicy
;
225 zfs_ioc_namecheck_t zvec_namecheck
;
226 boolean_t zvec_allow_log
;
227 zfs_ioc_poolcheck_t zvec_pool_check
;
228 boolean_t zvec_smush_outnvlist
;
229 const char *zvec_name
;
232 /* This array is indexed by zfs_userquota_prop_t */
233 static const char *userquota_perms
[] = {
234 ZFS_DELEG_PERM_USERUSED
,
235 ZFS_DELEG_PERM_USERQUOTA
,
236 ZFS_DELEG_PERM_GROUPUSED
,
237 ZFS_DELEG_PERM_GROUPQUOTA
,
240 static int zfs_ioc_userspace_upgrade(zfs_cmd_t
*zc
);
241 static int zfs_check_settable(const char *name
, nvpair_t
*property
,
243 static int zfs_check_clearable(char *dataset
, nvlist_t
*props
,
245 static int zfs_fill_zplprops_root(uint64_t, nvlist_t
*, nvlist_t
*,
247 int zfs_set_prop_nvlist(const char *, zprop_source_t
, nvlist_t
*, nvlist_t
*);
248 static int get_nvlist(uint64_t nvl
, uint64_t size
, int iflag
, nvlist_t
**nvp
);
250 #if defined(HAVE_DECLARE_EVENT_CLASS)
252 __dprintf(const char *file
, const char *func
, int line
, const char *fmt
, ...)
256 char *buf
= kmem_alloc(size
, KM_SLEEP
);
261 * Get rid of annoying prefix to filename.
263 newfile
= strrchr(file
, '/');
264 if (newfile
!= NULL
) {
265 newfile
= newfile
+ 1; /* Get rid of leading / */
271 (void) vsnprintf(buf
, size
, fmt
, adx
);
275 * Get rid of trailing newline.
277 nl
= strrchr(buf
, '\n');
282 * To get this data enable the zfs__dprintf trace point as shown:
284 * # Enable zfs__dprintf tracepoint, clear the tracepoint ring buffer
285 * $ echo 1 > /sys/module/zfs/parameters/zfs_flags
286 * $ echo 1 > /sys/kernel/debug/tracing/events/zfs/enable
287 * $ echo 0 > /sys/kernel/debug/tracing/trace
289 * # Dump the ring buffer.
290 * $ cat /sys/kernel/debug/tracing/trace
292 DTRACE_PROBE4(zfs__dprintf
,
293 char *, newfile
, char *, func
, int, line
, char *, buf
);
295 kmem_free(buf
, size
);
297 #endif /* HAVE_DECLARE_EVENT_CLASS */
300 history_str_free(char *buf
)
302 kmem_free(buf
, HIS_MAX_RECORD_LEN
);
306 history_str_get(zfs_cmd_t
*zc
)
310 if (zc
->zc_history
== 0)
313 buf
= kmem_alloc(HIS_MAX_RECORD_LEN
, KM_SLEEP
);
314 if (copyinstr((void *)(uintptr_t)zc
->zc_history
,
315 buf
, HIS_MAX_RECORD_LEN
, NULL
) != 0) {
316 history_str_free(buf
);
320 buf
[HIS_MAX_RECORD_LEN
-1] = '\0';
326 * Check to see if the named dataset is currently defined as bootable
329 zfs_is_bootfs(const char *name
)
333 if (dmu_objset_hold(name
, FTAG
, &os
) == 0) {
335 ret
= (dmu_objset_id(os
) == spa_bootfs(dmu_objset_spa(os
)));
336 dmu_objset_rele(os
, FTAG
);
343 * Return non-zero if the spa version is less than requested version.
346 zfs_earlier_version(const char *name
, int version
)
350 if (spa_open(name
, &spa
, FTAG
) == 0) {
351 if (spa_version(spa
) < version
) {
352 spa_close(spa
, FTAG
);
355 spa_close(spa
, FTAG
);
361 * Return TRUE if the ZPL version is less than requested version.
364 zpl_earlier_version(const char *name
, int version
)
367 boolean_t rc
= B_TRUE
;
369 if (dmu_objset_hold(name
, FTAG
, &os
) == 0) {
372 if (dmu_objset_type(os
) != DMU_OST_ZFS
) {
373 dmu_objset_rele(os
, FTAG
);
376 /* XXX reading from non-owned objset */
377 if (zfs_get_zplprop(os
, ZFS_PROP_VERSION
, &zplversion
) == 0)
378 rc
= zplversion
< version
;
379 dmu_objset_rele(os
, FTAG
);
385 zfs_log_history(zfs_cmd_t
*zc
)
390 if ((buf
= history_str_get(zc
)) == NULL
)
393 if (spa_open(zc
->zc_name
, &spa
, FTAG
) == 0) {
394 if (spa_version(spa
) >= SPA_VERSION_ZPOOL_HISTORY
)
395 (void) spa_history_log(spa
, buf
);
396 spa_close(spa
, FTAG
);
398 history_str_free(buf
);
402 * Policy for top-level read operations (list pools). Requires no privileges,
403 * and can be used in the local zone, as there is no associated dataset.
407 zfs_secpolicy_none(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
413 * Policy for dataset read operations (list children, get statistics). Requires
414 * no privileges, but must be visible in the local zone.
418 zfs_secpolicy_read(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
420 if (INGLOBALZONE(curproc
) ||
421 zone_dataset_visible(zc
->zc_name
, NULL
))
424 return (SET_ERROR(ENOENT
));
428 zfs_dozonecheck_impl(const char *dataset
, uint64_t zoned
, cred_t
*cr
)
433 * The dataset must be visible by this zone -- check this first
434 * so they don't see EPERM on something they shouldn't know about.
436 if (!INGLOBALZONE(curproc
) &&
437 !zone_dataset_visible(dataset
, &writable
))
438 return (SET_ERROR(ENOENT
));
440 if (INGLOBALZONE(curproc
)) {
442 * If the fs is zoned, only root can access it from the
445 if (secpolicy_zfs(cr
) && zoned
)
446 return (SET_ERROR(EPERM
));
449 * If we are in a local zone, the 'zoned' property must be set.
452 return (SET_ERROR(EPERM
));
454 /* must be writable by this zone */
456 return (SET_ERROR(EPERM
));
462 zfs_dozonecheck(const char *dataset
, cred_t
*cr
)
466 if (dsl_prop_get_integer(dataset
, "zoned", &zoned
, NULL
))
467 return (SET_ERROR(ENOENT
));
469 return (zfs_dozonecheck_impl(dataset
, zoned
, cr
));
473 zfs_dozonecheck_ds(const char *dataset
, dsl_dataset_t
*ds
, cred_t
*cr
)
477 if (dsl_prop_get_int_ds(ds
, "zoned", &zoned
))
478 return (SET_ERROR(ENOENT
));
480 return (zfs_dozonecheck_impl(dataset
, zoned
, cr
));
484 zfs_secpolicy_write_perms_ds(const char *name
, dsl_dataset_t
*ds
,
485 const char *perm
, cred_t
*cr
)
489 error
= zfs_dozonecheck_ds(name
, ds
, cr
);
491 error
= secpolicy_zfs(cr
);
493 error
= dsl_deleg_access_impl(ds
, perm
, cr
);
499 zfs_secpolicy_write_perms(const char *name
, const char *perm
, cred_t
*cr
)
505 error
= dsl_pool_hold(name
, FTAG
, &dp
);
509 error
= dsl_dataset_hold(dp
, name
, FTAG
, &ds
);
511 dsl_pool_rele(dp
, FTAG
);
515 error
= zfs_secpolicy_write_perms_ds(name
, ds
, perm
, cr
);
517 dsl_dataset_rele(ds
, FTAG
);
518 dsl_pool_rele(dp
, FTAG
);
523 * Policy for setting the security label property.
525 * Returns 0 for success, non-zero for access and other errors.
528 zfs_set_slabel_policy(const char *name
, char *strval
, cred_t
*cr
)
531 char ds_hexsl
[MAXNAMELEN
];
532 bslabel_t ds_sl
, new_sl
;
533 boolean_t new_default
= FALSE
;
535 int needed_priv
= -1;
538 /* First get the existing dataset label. */
539 error
= dsl_prop_get(name
, zfs_prop_to_name(ZFS_PROP_MLSLABEL
),
540 1, sizeof (ds_hexsl
), &ds_hexsl
, NULL
);
542 return (SET_ERROR(EPERM
));
544 if (strcasecmp(strval
, ZFS_MLSLABEL_DEFAULT
) == 0)
547 /* The label must be translatable */
548 if (!new_default
&& (hexstr_to_label(strval
, &new_sl
) != 0))
549 return (SET_ERROR(EINVAL
));
552 * In a non-global zone, disallow attempts to set a label that
553 * doesn't match that of the zone; otherwise no other checks
556 if (!INGLOBALZONE(curproc
)) {
557 if (new_default
|| !blequal(&new_sl
, CR_SL(CRED())))
558 return (SET_ERROR(EPERM
));
563 * For global-zone datasets (i.e., those whose zoned property is
564 * "off", verify that the specified new label is valid for the
567 if (dsl_prop_get_integer(name
,
568 zfs_prop_to_name(ZFS_PROP_ZONED
), &zoned
, NULL
))
569 return (SET_ERROR(EPERM
));
571 if (zfs_check_global_label(name
, strval
) != 0)
572 return (SET_ERROR(EPERM
));
576 * If the existing dataset label is nondefault, check if the
577 * dataset is mounted (label cannot be changed while mounted).
578 * Get the zfs_sb_t; if there isn't one, then the dataset isn't
579 * mounted (or isn't a dataset, doesn't exist, ...).
581 if (strcasecmp(ds_hexsl
, ZFS_MLSLABEL_DEFAULT
) != 0) {
583 static char *setsl_tag
= "setsl_tag";
586 * Try to own the dataset; abort if there is any error,
587 * (e.g., already mounted, in use, or other error).
589 error
= dmu_objset_own(name
, DMU_OST_ZFS
, B_TRUE
,
592 return (SET_ERROR(EPERM
));
594 dmu_objset_disown(os
, setsl_tag
);
597 needed_priv
= PRIV_FILE_DOWNGRADE_SL
;
601 if (hexstr_to_label(strval
, &new_sl
) != 0)
602 return (SET_ERROR(EPERM
));
604 if (blstrictdom(&ds_sl
, &new_sl
))
605 needed_priv
= PRIV_FILE_DOWNGRADE_SL
;
606 else if (blstrictdom(&new_sl
, &ds_sl
))
607 needed_priv
= PRIV_FILE_UPGRADE_SL
;
609 /* dataset currently has a default label */
611 needed_priv
= PRIV_FILE_UPGRADE_SL
;
615 if (needed_priv
!= -1)
616 return (PRIV_POLICY(cr
, needed_priv
, B_FALSE
, EPERM
, NULL
));
620 #endif /* HAVE_MLSLABEL */
624 zfs_secpolicy_setprop(const char *dsname
, zfs_prop_t prop
, nvpair_t
*propval
,
630 * Check permissions for special properties.
637 * Disallow setting of 'zoned' from within a local zone.
639 if (!INGLOBALZONE(curproc
))
640 return (SET_ERROR(EPERM
));
644 if (!INGLOBALZONE(curproc
)) {
646 char setpoint
[MAXNAMELEN
];
648 * Unprivileged users are allowed to modify the
649 * quota on things *under* (ie. contained by)
650 * the thing they own.
652 if (dsl_prop_get_integer(dsname
, "zoned", &zoned
,
654 return (SET_ERROR(EPERM
));
655 if (!zoned
|| strlen(dsname
) <= strlen(setpoint
))
656 return (SET_ERROR(EPERM
));
660 case ZFS_PROP_MLSLABEL
:
661 if (!is_system_labeled())
662 return (SET_ERROR(EPERM
));
664 if (nvpair_value_string(propval
, &strval
) == 0) {
667 err
= zfs_set_slabel_policy(dsname
, strval
, CRED());
674 return (zfs_secpolicy_write_perms(dsname
, zfs_prop_to_name(prop
), cr
));
679 zfs_secpolicy_set_fsacl(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
683 error
= zfs_dozonecheck(zc
->zc_name
, cr
);
688 * permission to set permissions will be evaluated later in
689 * dsl_deleg_can_allow()
696 zfs_secpolicy_rollback(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
698 return (zfs_secpolicy_write_perms(zc
->zc_name
,
699 ZFS_DELEG_PERM_ROLLBACK
, cr
));
704 zfs_secpolicy_send(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
712 * Generate the current snapshot name from the given objsetid, then
713 * use that name for the secpolicy/zone checks.
715 cp
= strchr(zc
->zc_name
, '@');
717 return (SET_ERROR(EINVAL
));
718 error
= dsl_pool_hold(zc
->zc_name
, FTAG
, &dp
);
722 error
= dsl_dataset_hold_obj(dp
, zc
->zc_sendobj
, FTAG
, &ds
);
724 dsl_pool_rele(dp
, FTAG
);
728 dsl_dataset_name(ds
, zc
->zc_name
);
730 error
= zfs_secpolicy_write_perms_ds(zc
->zc_name
, ds
,
731 ZFS_DELEG_PERM_SEND
, cr
);
732 dsl_dataset_rele(ds
, FTAG
);
733 dsl_pool_rele(dp
, FTAG
);
740 zfs_secpolicy_send_new(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
742 return (zfs_secpolicy_write_perms(zc
->zc_name
,
743 ZFS_DELEG_PERM_SEND
, cr
));
746 #ifdef HAVE_SMB_SHARE
749 zfs_secpolicy_deleg_share(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
754 if ((error
= lookupname(zc
->zc_value
, UIO_SYSSPACE
,
755 NO_FOLLOW
, NULL
, &vp
)) != 0)
758 /* Now make sure mntpnt and dataset are ZFS */
760 if (vp
->v_vfsp
->vfs_fstype
!= zfsfstype
||
761 (strcmp((char *)refstr_value(vp
->v_vfsp
->vfs_resource
),
762 zc
->zc_name
) != 0)) {
764 return (SET_ERROR(EPERM
));
768 return (dsl_deleg_access(zc
->zc_name
,
769 ZFS_DELEG_PERM_SHARE
, cr
));
771 #endif /* HAVE_SMB_SHARE */
774 zfs_secpolicy_share(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
776 #ifdef HAVE_SMB_SHARE
777 if (!INGLOBALZONE(curproc
))
778 return (SET_ERROR(EPERM
));
780 if (secpolicy_nfs(cr
) == 0) {
783 return (zfs_secpolicy_deleg_share(zc
, innvl
, cr
));
786 return (SET_ERROR(ENOTSUP
));
787 #endif /* HAVE_SMB_SHARE */
791 zfs_secpolicy_smb_acl(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
793 #ifdef HAVE_SMB_SHARE
794 if (!INGLOBALZONE(curproc
))
795 return (SET_ERROR(EPERM
));
797 if (secpolicy_smb(cr
) == 0) {
800 return (zfs_secpolicy_deleg_share(zc
, innvl
, cr
));
803 return (SET_ERROR(ENOTSUP
));
804 #endif /* HAVE_SMB_SHARE */
808 zfs_get_parent(const char *datasetname
, char *parent
, int parentsize
)
813 * Remove the @bla or /bla from the end of the name to get the parent.
815 (void) strncpy(parent
, datasetname
, parentsize
);
816 cp
= strrchr(parent
, '@');
820 cp
= strrchr(parent
, '/');
822 return (SET_ERROR(ENOENT
));
830 zfs_secpolicy_destroy_perms(const char *name
, cred_t
*cr
)
834 if ((error
= zfs_secpolicy_write_perms(name
,
835 ZFS_DELEG_PERM_MOUNT
, cr
)) != 0)
838 return (zfs_secpolicy_write_perms(name
, ZFS_DELEG_PERM_DESTROY
, cr
));
843 zfs_secpolicy_destroy(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
845 return (zfs_secpolicy_destroy_perms(zc
->zc_name
, cr
));
849 * Destroying snapshots with delegated permissions requires
850 * descendant mount and destroy permissions.
854 zfs_secpolicy_destroy_snaps(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
857 nvpair_t
*pair
, *nextpair
;
860 if (nvlist_lookup_nvlist(innvl
, "snaps", &snaps
) != 0)
861 return (SET_ERROR(EINVAL
));
862 for (pair
= nvlist_next_nvpair(snaps
, NULL
); pair
!= NULL
;
864 nextpair
= nvlist_next_nvpair(snaps
, pair
);
865 error
= zfs_secpolicy_destroy_perms(nvpair_name(pair
), cr
);
866 if (error
== ENOENT
) {
868 * Ignore any snapshots that don't exist (we consider
869 * them "already destroyed"). Remove the name from the
870 * nvl here in case the snapshot is created between
871 * now and when we try to destroy it (in which case
872 * we don't want to destroy it since we haven't
873 * checked for permission).
875 fnvlist_remove_nvpair(snaps
, pair
);
886 zfs_secpolicy_rename_perms(const char *from
, const char *to
, cred_t
*cr
)
888 char parentname
[MAXNAMELEN
];
891 if ((error
= zfs_secpolicy_write_perms(from
,
892 ZFS_DELEG_PERM_RENAME
, cr
)) != 0)
895 if ((error
= zfs_secpolicy_write_perms(from
,
896 ZFS_DELEG_PERM_MOUNT
, cr
)) != 0)
899 if ((error
= zfs_get_parent(to
, parentname
,
900 sizeof (parentname
))) != 0)
903 if ((error
= zfs_secpolicy_write_perms(parentname
,
904 ZFS_DELEG_PERM_CREATE
, cr
)) != 0)
907 if ((error
= zfs_secpolicy_write_perms(parentname
,
908 ZFS_DELEG_PERM_MOUNT
, cr
)) != 0)
916 zfs_secpolicy_rename(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
918 return (zfs_secpolicy_rename_perms(zc
->zc_name
, zc
->zc_value
, cr
));
923 zfs_secpolicy_promote(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
926 dsl_dataset_t
*clone
;
929 error
= zfs_secpolicy_write_perms(zc
->zc_name
,
930 ZFS_DELEG_PERM_PROMOTE
, cr
);
934 error
= dsl_pool_hold(zc
->zc_name
, FTAG
, &dp
);
938 error
= dsl_dataset_hold(dp
, zc
->zc_name
, FTAG
, &clone
);
941 char parentname
[MAXNAMELEN
];
942 dsl_dataset_t
*origin
= NULL
;
946 error
= dsl_dataset_hold_obj(dd
->dd_pool
,
947 dd
->dd_phys
->dd_origin_obj
, FTAG
, &origin
);
949 dsl_dataset_rele(clone
, FTAG
);
950 dsl_pool_rele(dp
, FTAG
);
954 error
= zfs_secpolicy_write_perms_ds(zc
->zc_name
, clone
,
955 ZFS_DELEG_PERM_MOUNT
, cr
);
957 dsl_dataset_name(origin
, parentname
);
959 error
= zfs_secpolicy_write_perms_ds(parentname
, origin
,
960 ZFS_DELEG_PERM_PROMOTE
, cr
);
962 dsl_dataset_rele(clone
, FTAG
);
963 dsl_dataset_rele(origin
, FTAG
);
965 dsl_pool_rele(dp
, FTAG
);
971 zfs_secpolicy_recv(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
975 if ((error
= zfs_secpolicy_write_perms(zc
->zc_name
,
976 ZFS_DELEG_PERM_RECEIVE
, cr
)) != 0)
979 if ((error
= zfs_secpolicy_write_perms(zc
->zc_name
,
980 ZFS_DELEG_PERM_MOUNT
, cr
)) != 0)
983 return (zfs_secpolicy_write_perms(zc
->zc_name
,
984 ZFS_DELEG_PERM_CREATE
, cr
));
988 zfs_secpolicy_snapshot_perms(const char *name
, cred_t
*cr
)
990 return (zfs_secpolicy_write_perms(name
,
991 ZFS_DELEG_PERM_SNAPSHOT
, cr
));
995 * Check for permission to create each snapshot in the nvlist.
999 zfs_secpolicy_snapshot(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1005 if (nvlist_lookup_nvlist(innvl
, "snaps", &snaps
) != 0)
1006 return (SET_ERROR(EINVAL
));
1007 for (pair
= nvlist_next_nvpair(snaps
, NULL
); pair
!= NULL
;
1008 pair
= nvlist_next_nvpair(snaps
, pair
)) {
1009 char *name
= nvpair_name(pair
);
1010 char *atp
= strchr(name
, '@');
1013 error
= SET_ERROR(EINVAL
);
1017 error
= zfs_secpolicy_snapshot_perms(name
, cr
);
1026 * Check for permission to create each snapshot in the nvlist.
1030 zfs_secpolicy_bookmark(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1035 for (pair
= nvlist_next_nvpair(innvl
, NULL
);
1036 pair
!= NULL
; pair
= nvlist_next_nvpair(innvl
, pair
)) {
1037 char *name
= nvpair_name(pair
);
1038 char *hashp
= strchr(name
, '#');
1040 if (hashp
== NULL
) {
1041 error
= SET_ERROR(EINVAL
);
1045 error
= zfs_secpolicy_write_perms(name
,
1046 ZFS_DELEG_PERM_BOOKMARK
, cr
);
1056 zfs_secpolicy_destroy_bookmarks(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1058 nvpair_t
*pair
, *nextpair
;
1061 for (pair
= nvlist_next_nvpair(innvl
, NULL
); pair
!= NULL
;
1063 char *name
= nvpair_name(pair
);
1064 char *hashp
= strchr(name
, '#');
1065 nextpair
= nvlist_next_nvpair(innvl
, pair
);
1067 if (hashp
== NULL
) {
1068 error
= SET_ERROR(EINVAL
);
1073 error
= zfs_secpolicy_write_perms(name
,
1074 ZFS_DELEG_PERM_DESTROY
, cr
);
1076 if (error
== ENOENT
) {
1078 * Ignore any filesystems that don't exist (we consider
1079 * their bookmarks "already destroyed"). Remove
1080 * the name from the nvl here in case the filesystem
1081 * is created between now and when we try to destroy
1082 * the bookmark (in which case we don't want to
1083 * destroy it since we haven't checked for permission).
1085 fnvlist_remove_nvpair(innvl
, pair
);
1097 zfs_secpolicy_log_history(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1100 * Even root must have a proper TSD so that we know what pool
1103 if (tsd_get(zfs_allow_log_key
) == NULL
)
1104 return (SET_ERROR(EPERM
));
1109 zfs_secpolicy_create_clone(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1111 char parentname
[MAXNAMELEN
];
1115 if ((error
= zfs_get_parent(zc
->zc_name
, parentname
,
1116 sizeof (parentname
))) != 0)
1119 if (nvlist_lookup_string(innvl
, "origin", &origin
) == 0 &&
1120 (error
= zfs_secpolicy_write_perms(origin
,
1121 ZFS_DELEG_PERM_CLONE
, cr
)) != 0)
1124 if ((error
= zfs_secpolicy_write_perms(parentname
,
1125 ZFS_DELEG_PERM_CREATE
, cr
)) != 0)
1128 return (zfs_secpolicy_write_perms(parentname
,
1129 ZFS_DELEG_PERM_MOUNT
, cr
));
1133 * Policy for pool operations - create/destroy pools, add vdevs, etc. Requires
1134 * SYS_CONFIG privilege, which is not available in a local zone.
1138 zfs_secpolicy_config(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1140 if (secpolicy_sys_config(cr
, B_FALSE
) != 0)
1141 return (SET_ERROR(EPERM
));
1147 * Policy for object to name lookups.
1151 zfs_secpolicy_diff(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1155 if ((error
= secpolicy_sys_config(cr
, B_FALSE
)) == 0)
1158 error
= zfs_secpolicy_write_perms(zc
->zc_name
, ZFS_DELEG_PERM_DIFF
, cr
);
1163 * Policy for fault injection. Requires all privileges.
1167 zfs_secpolicy_inject(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1169 return (secpolicy_zinject(cr
));
1174 zfs_secpolicy_inherit_prop(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1176 zfs_prop_t prop
= zfs_name_to_prop(zc
->zc_value
);
1178 if (prop
== ZPROP_INVAL
) {
1179 if (!zfs_prop_user(zc
->zc_value
))
1180 return (SET_ERROR(EINVAL
));
1181 return (zfs_secpolicy_write_perms(zc
->zc_name
,
1182 ZFS_DELEG_PERM_USERPROP
, cr
));
1184 return (zfs_secpolicy_setprop(zc
->zc_name
, prop
,
1190 zfs_secpolicy_userspace_one(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1192 int err
= zfs_secpolicy_read(zc
, innvl
, cr
);
1196 if (zc
->zc_objset_type
>= ZFS_NUM_USERQUOTA_PROPS
)
1197 return (SET_ERROR(EINVAL
));
1199 if (zc
->zc_value
[0] == 0) {
1201 * They are asking about a posix uid/gid. If it's
1202 * themself, allow it.
1204 if (zc
->zc_objset_type
== ZFS_PROP_USERUSED
||
1205 zc
->zc_objset_type
== ZFS_PROP_USERQUOTA
) {
1206 if (zc
->zc_guid
== crgetuid(cr
))
1209 if (groupmember(zc
->zc_guid
, cr
))
1214 return (zfs_secpolicy_write_perms(zc
->zc_name
,
1215 userquota_perms
[zc
->zc_objset_type
], cr
));
1219 zfs_secpolicy_userspace_many(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1221 int err
= zfs_secpolicy_read(zc
, innvl
, cr
);
1225 if (zc
->zc_objset_type
>= ZFS_NUM_USERQUOTA_PROPS
)
1226 return (SET_ERROR(EINVAL
));
1228 return (zfs_secpolicy_write_perms(zc
->zc_name
,
1229 userquota_perms
[zc
->zc_objset_type
], cr
));
1234 zfs_secpolicy_userspace_upgrade(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1236 return (zfs_secpolicy_setprop(zc
->zc_name
, ZFS_PROP_VERSION
,
1242 zfs_secpolicy_hold(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1248 error
= nvlist_lookup_nvlist(innvl
, "holds", &holds
);
1250 return (SET_ERROR(EINVAL
));
1252 for (pair
= nvlist_next_nvpair(holds
, NULL
); pair
!= NULL
;
1253 pair
= nvlist_next_nvpair(holds
, pair
)) {
1254 char fsname
[MAXNAMELEN
];
1255 error
= dmu_fsname(nvpair_name(pair
), fsname
);
1258 error
= zfs_secpolicy_write_perms(fsname
,
1259 ZFS_DELEG_PERM_HOLD
, cr
);
1268 zfs_secpolicy_release(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1273 for (pair
= nvlist_next_nvpair(innvl
, NULL
); pair
!= NULL
;
1274 pair
= nvlist_next_nvpair(innvl
, pair
)) {
1275 char fsname
[MAXNAMELEN
];
1276 error
= dmu_fsname(nvpair_name(pair
), fsname
);
1279 error
= zfs_secpolicy_write_perms(fsname
,
1280 ZFS_DELEG_PERM_RELEASE
, cr
);
1288 * Policy for allowing temporary snapshots to be taken or released
1291 zfs_secpolicy_tmp_snapshot(zfs_cmd_t
*zc
, nvlist_t
*innvl
, cred_t
*cr
)
1294 * A temporary snapshot is the same as a snapshot,
1295 * hold, destroy and release all rolled into one.
1296 * Delegated diff alone is sufficient that we allow this.
1300 if ((error
= zfs_secpolicy_write_perms(zc
->zc_name
,
1301 ZFS_DELEG_PERM_DIFF
, cr
)) == 0)
1304 error
= zfs_secpolicy_snapshot_perms(zc
->zc_name
, cr
);
1306 error
= zfs_secpolicy_hold(zc
, innvl
, cr
);
1308 error
= zfs_secpolicy_release(zc
, innvl
, cr
);
1310 error
= zfs_secpolicy_destroy(zc
, innvl
, cr
);
1315 * Returns the nvlist as specified by the user in the zfs_cmd_t.
1318 get_nvlist(uint64_t nvl
, uint64_t size
, int iflag
, nvlist_t
**nvp
)
1322 nvlist_t
*list
= NULL
;
1325 * Read in and unpack the user-supplied nvlist.
1328 return (SET_ERROR(EINVAL
));
1330 packed
= vmem_alloc(size
, KM_SLEEP
);
1332 if ((error
= ddi_copyin((void *)(uintptr_t)nvl
, packed
, size
,
1334 vmem_free(packed
, size
);
1338 if ((error
= nvlist_unpack(packed
, size
, &list
, 0)) != 0) {
1339 vmem_free(packed
, size
);
1343 vmem_free(packed
, size
);
1350 * Reduce the size of this nvlist until it can be serialized in 'max' bytes.
1351 * Entries will be removed from the end of the nvlist, and one int32 entry
1352 * named "N_MORE_ERRORS" will be added indicating how many entries were
1356 nvlist_smush(nvlist_t
*errors
, size_t max
)
1360 size
= fnvlist_size(errors
);
1363 nvpair_t
*more_errors
;
1367 return (SET_ERROR(ENOMEM
));
1369 fnvlist_add_int32(errors
, ZPROP_N_MORE_ERRORS
, 0);
1370 more_errors
= nvlist_prev_nvpair(errors
, NULL
);
1373 nvpair_t
*pair
= nvlist_prev_nvpair(errors
,
1375 fnvlist_remove_nvpair(errors
, pair
);
1377 size
= fnvlist_size(errors
);
1378 } while (size
> max
);
1380 fnvlist_remove_nvpair(errors
, more_errors
);
1381 fnvlist_add_int32(errors
, ZPROP_N_MORE_ERRORS
, n
);
1382 ASSERT3U(fnvlist_size(errors
), <=, max
);
1389 put_nvlist(zfs_cmd_t
*zc
, nvlist_t
*nvl
)
1391 char *packed
= NULL
;
1395 size
= fnvlist_size(nvl
);
1397 if (size
> zc
->zc_nvlist_dst_size
) {
1398 error
= SET_ERROR(ENOMEM
);
1400 packed
= fnvlist_pack(nvl
, &size
);
1401 if (ddi_copyout(packed
, (void *)(uintptr_t)zc
->zc_nvlist_dst
,
1402 size
, zc
->zc_iflags
) != 0)
1403 error
= SET_ERROR(EFAULT
);
1404 fnvlist_pack_free(packed
, size
);
1407 zc
->zc_nvlist_dst_size
= size
;
1408 zc
->zc_nvlist_dst_filled
= B_TRUE
;
1413 get_zfs_sb(const char *dsname
, zfs_sb_t
**zsbp
)
1418 error
= dmu_objset_hold(dsname
, FTAG
, &os
);
1421 if (dmu_objset_type(os
) != DMU_OST_ZFS
) {
1422 dmu_objset_rele(os
, FTAG
);
1423 return (SET_ERROR(EINVAL
));
1426 mutex_enter(&os
->os_user_ptr_lock
);
1427 *zsbp
= dmu_objset_get_user(os
);
1428 if (*zsbp
&& (*zsbp
)->z_sb
) {
1429 atomic_inc(&((*zsbp
)->z_sb
->s_active
));
1431 error
= SET_ERROR(ESRCH
);
1433 mutex_exit(&os
->os_user_ptr_lock
);
1434 dmu_objset_rele(os
, FTAG
);
1439 * Find a zfs_sb_t for a mounted filesystem, or create our own, in which
1440 * case its z_sb will be NULL, and it will be opened as the owner.
1441 * If 'writer' is set, the z_teardown_lock will be held for RW_WRITER,
1442 * which prevents all inode ops from running.
1445 zfs_sb_hold(const char *name
, void *tag
, zfs_sb_t
**zsbp
, boolean_t writer
)
1449 if (get_zfs_sb(name
, zsbp
) != 0)
1450 error
= zfs_sb_create(name
, zsbp
);
1452 rrw_enter(&(*zsbp
)->z_teardown_lock
, (writer
) ? RW_WRITER
:
1454 if ((*zsbp
)->z_unmounted
) {
1456 * XXX we could probably try again, since the unmounting
1457 * thread should be just about to disassociate the
1458 * objset from the zsb.
1460 rrw_exit(&(*zsbp
)->z_teardown_lock
, tag
);
1461 return (SET_ERROR(EBUSY
));
1468 zfs_sb_rele(zfs_sb_t
*zsb
, void *tag
)
1470 rrw_exit(&zsb
->z_teardown_lock
, tag
);
1473 deactivate_super(zsb
->z_sb
);
1475 dmu_objset_disown(zsb
->z_os
, zsb
);
1481 zfs_ioc_pool_create(zfs_cmd_t
*zc
)
1484 nvlist_t
*config
, *props
= NULL
;
1485 nvlist_t
*rootprops
= NULL
;
1486 nvlist_t
*zplprops
= NULL
;
1488 if ((error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1489 zc
->zc_iflags
, &config
)))
1492 if (zc
->zc_nvlist_src_size
!= 0 && (error
=
1493 get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
1494 zc
->zc_iflags
, &props
))) {
1495 nvlist_free(config
);
1500 nvlist_t
*nvl
= NULL
;
1501 uint64_t version
= SPA_VERSION
;
1503 (void) nvlist_lookup_uint64(props
,
1504 zpool_prop_to_name(ZPOOL_PROP_VERSION
), &version
);
1505 if (!SPA_VERSION_IS_SUPPORTED(version
)) {
1506 error
= SET_ERROR(EINVAL
);
1507 goto pool_props_bad
;
1509 (void) nvlist_lookup_nvlist(props
, ZPOOL_ROOTFS_PROPS
, &nvl
);
1511 error
= nvlist_dup(nvl
, &rootprops
, KM_SLEEP
);
1513 nvlist_free(config
);
1517 (void) nvlist_remove_all(props
, ZPOOL_ROOTFS_PROPS
);
1519 VERIFY(nvlist_alloc(&zplprops
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
1520 error
= zfs_fill_zplprops_root(version
, rootprops
,
1523 goto pool_props_bad
;
1526 error
= spa_create(zc
->zc_name
, config
, props
, zplprops
);
1529 * Set the remaining root properties
1531 if (!error
&& (error
= zfs_set_prop_nvlist(zc
->zc_name
,
1532 ZPROP_SRC_LOCAL
, rootprops
, NULL
)) != 0)
1533 (void) spa_destroy(zc
->zc_name
);
1536 nvlist_free(rootprops
);
1537 nvlist_free(zplprops
);
1538 nvlist_free(config
);
1545 zfs_ioc_pool_destroy(zfs_cmd_t
*zc
)
1548 zfs_log_history(zc
);
1549 error
= spa_destroy(zc
->zc_name
);
1551 zvol_remove_minors(zc
->zc_name
);
1556 zfs_ioc_pool_import(zfs_cmd_t
*zc
)
1558 nvlist_t
*config
, *props
= NULL
;
1562 if ((error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1563 zc
->zc_iflags
, &config
)) != 0)
1566 if (zc
->zc_nvlist_src_size
!= 0 && (error
=
1567 get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
1568 zc
->zc_iflags
, &props
))) {
1569 nvlist_free(config
);
1573 if (nvlist_lookup_uint64(config
, ZPOOL_CONFIG_POOL_GUID
, &guid
) != 0 ||
1574 guid
!= zc
->zc_guid
)
1575 error
= SET_ERROR(EINVAL
);
1577 error
= spa_import(zc
->zc_name
, config
, props
, zc
->zc_cookie
);
1579 if (zc
->zc_nvlist_dst
!= 0) {
1582 if ((err
= put_nvlist(zc
, config
)) != 0)
1586 nvlist_free(config
);
1595 zfs_ioc_pool_export(zfs_cmd_t
*zc
)
1598 boolean_t force
= (boolean_t
)zc
->zc_cookie
;
1599 boolean_t hardforce
= (boolean_t
)zc
->zc_guid
;
1601 zfs_log_history(zc
);
1602 error
= spa_export(zc
->zc_name
, NULL
, force
, hardforce
);
1604 zvol_remove_minors(zc
->zc_name
);
1609 zfs_ioc_pool_configs(zfs_cmd_t
*zc
)
1614 if ((configs
= spa_all_configs(&zc
->zc_cookie
)) == NULL
)
1615 return (SET_ERROR(EEXIST
));
1617 error
= put_nvlist(zc
, configs
);
1619 nvlist_free(configs
);
1626 * zc_name name of the pool
1629 * zc_cookie real errno
1630 * zc_nvlist_dst config nvlist
1631 * zc_nvlist_dst_size size of config nvlist
1634 zfs_ioc_pool_stats(zfs_cmd_t
*zc
)
1640 error
= spa_get_stats(zc
->zc_name
, &config
, zc
->zc_value
,
1641 sizeof (zc
->zc_value
));
1643 if (config
!= NULL
) {
1644 ret
= put_nvlist(zc
, config
);
1645 nvlist_free(config
);
1648 * The config may be present even if 'error' is non-zero.
1649 * In this case we return success, and preserve the real errno
1652 zc
->zc_cookie
= error
;
1661 * Try to import the given pool, returning pool stats as appropriate so that
1662 * user land knows which devices are available and overall pool health.
1665 zfs_ioc_pool_tryimport(zfs_cmd_t
*zc
)
1667 nvlist_t
*tryconfig
, *config
;
1670 if ((error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1671 zc
->zc_iflags
, &tryconfig
)) != 0)
1674 config
= spa_tryimport(tryconfig
);
1676 nvlist_free(tryconfig
);
1679 return (SET_ERROR(EINVAL
));
1681 error
= put_nvlist(zc
, config
);
1682 nvlist_free(config
);
1689 * zc_name name of the pool
1690 * zc_cookie scan func (pool_scan_func_t)
1693 zfs_ioc_pool_scan(zfs_cmd_t
*zc
)
1698 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1701 if (zc
->zc_cookie
== POOL_SCAN_NONE
)
1702 error
= spa_scan_stop(spa
);
1704 error
= spa_scan(spa
, zc
->zc_cookie
);
1706 spa_close(spa
, FTAG
);
1712 zfs_ioc_pool_freeze(zfs_cmd_t
*zc
)
1717 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
1720 spa_close(spa
, FTAG
);
1726 zfs_ioc_pool_upgrade(zfs_cmd_t
*zc
)
1731 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1734 if (zc
->zc_cookie
< spa_version(spa
) ||
1735 !SPA_VERSION_IS_SUPPORTED(zc
->zc_cookie
)) {
1736 spa_close(spa
, FTAG
);
1737 return (SET_ERROR(EINVAL
));
1740 spa_upgrade(spa
, zc
->zc_cookie
);
1741 spa_close(spa
, FTAG
);
1747 zfs_ioc_pool_get_history(zfs_cmd_t
*zc
)
1754 if ((size
= zc
->zc_history_len
) == 0)
1755 return (SET_ERROR(EINVAL
));
1757 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1760 if (spa_version(spa
) < SPA_VERSION_ZPOOL_HISTORY
) {
1761 spa_close(spa
, FTAG
);
1762 return (SET_ERROR(ENOTSUP
));
1765 hist_buf
= vmem_alloc(size
, KM_SLEEP
);
1766 if ((error
= spa_history_get(spa
, &zc
->zc_history_offset
,
1767 &zc
->zc_history_len
, hist_buf
)) == 0) {
1768 error
= ddi_copyout(hist_buf
,
1769 (void *)(uintptr_t)zc
->zc_history
,
1770 zc
->zc_history_len
, zc
->zc_iflags
);
1773 spa_close(spa
, FTAG
);
1774 vmem_free(hist_buf
, size
);
1779 zfs_ioc_pool_reguid(zfs_cmd_t
*zc
)
1784 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
1786 error
= spa_change_guid(spa
);
1787 spa_close(spa
, FTAG
);
1793 zfs_ioc_dsobj_to_dsname(zfs_cmd_t
*zc
)
1795 return (dsl_dsobj_to_dsname(zc
->zc_name
, zc
->zc_obj
, zc
->zc_value
));
1800 * zc_name name of filesystem
1801 * zc_obj object to find
1804 * zc_value name of object
1807 zfs_ioc_obj_to_path(zfs_cmd_t
*zc
)
1812 /* XXX reading from objset not owned */
1813 if ((error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
)) != 0)
1815 if (dmu_objset_type(os
) != DMU_OST_ZFS
) {
1816 dmu_objset_rele(os
, FTAG
);
1817 return (SET_ERROR(EINVAL
));
1819 error
= zfs_obj_to_path(os
, zc
->zc_obj
, zc
->zc_value
,
1820 sizeof (zc
->zc_value
));
1821 dmu_objset_rele(os
, FTAG
);
1828 * zc_name name of filesystem
1829 * zc_obj object to find
1832 * zc_stat stats on object
1833 * zc_value path to object
1836 zfs_ioc_obj_to_stats(zfs_cmd_t
*zc
)
1841 /* XXX reading from objset not owned */
1842 if ((error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
)) != 0)
1844 if (dmu_objset_type(os
) != DMU_OST_ZFS
) {
1845 dmu_objset_rele(os
, FTAG
);
1846 return (SET_ERROR(EINVAL
));
1848 error
= zfs_obj_to_stats(os
, zc
->zc_obj
, &zc
->zc_stat
, zc
->zc_value
,
1849 sizeof (zc
->zc_value
));
1850 dmu_objset_rele(os
, FTAG
);
1856 zfs_ioc_vdev_add(zfs_cmd_t
*zc
)
1862 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
1866 error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1867 zc
->zc_iflags
, &config
);
1869 error
= spa_vdev_add(spa
, config
);
1870 nvlist_free(config
);
1872 spa_close(spa
, FTAG
);
1878 * zc_name name of the pool
1879 * zc_nvlist_conf nvlist of devices to remove
1880 * zc_cookie to stop the remove?
1883 zfs_ioc_vdev_remove(zfs_cmd_t
*zc
)
1888 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
1891 error
= spa_vdev_remove(spa
, zc
->zc_guid
, B_FALSE
);
1892 spa_close(spa
, FTAG
);
1897 zfs_ioc_vdev_set_state(zfs_cmd_t
*zc
)
1901 vdev_state_t newstate
= VDEV_STATE_UNKNOWN
;
1903 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1905 switch (zc
->zc_cookie
) {
1906 case VDEV_STATE_ONLINE
:
1907 error
= vdev_online(spa
, zc
->zc_guid
, zc
->zc_obj
, &newstate
);
1910 case VDEV_STATE_OFFLINE
:
1911 error
= vdev_offline(spa
, zc
->zc_guid
, zc
->zc_obj
);
1914 case VDEV_STATE_FAULTED
:
1915 if (zc
->zc_obj
!= VDEV_AUX_ERR_EXCEEDED
&&
1916 zc
->zc_obj
!= VDEV_AUX_EXTERNAL
)
1917 zc
->zc_obj
= VDEV_AUX_ERR_EXCEEDED
;
1919 error
= vdev_fault(spa
, zc
->zc_guid
, zc
->zc_obj
);
1922 case VDEV_STATE_DEGRADED
:
1923 if (zc
->zc_obj
!= VDEV_AUX_ERR_EXCEEDED
&&
1924 zc
->zc_obj
!= VDEV_AUX_EXTERNAL
)
1925 zc
->zc_obj
= VDEV_AUX_ERR_EXCEEDED
;
1927 error
= vdev_degrade(spa
, zc
->zc_guid
, zc
->zc_obj
);
1931 error
= SET_ERROR(EINVAL
);
1933 zc
->zc_cookie
= newstate
;
1934 spa_close(spa
, FTAG
);
1939 zfs_ioc_vdev_attach(zfs_cmd_t
*zc
)
1942 int replacing
= zc
->zc_cookie
;
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
)) == 0) {
1951 error
= spa_vdev_attach(spa
, zc
->zc_guid
, config
, replacing
);
1952 nvlist_free(config
);
1955 spa_close(spa
, FTAG
);
1960 zfs_ioc_vdev_detach(zfs_cmd_t
*zc
)
1965 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1968 error
= spa_vdev_detach(spa
, zc
->zc_guid
, 0, B_FALSE
);
1970 spa_close(spa
, FTAG
);
1975 zfs_ioc_vdev_split(zfs_cmd_t
*zc
)
1978 nvlist_t
*config
, *props
= NULL
;
1980 boolean_t exp
= !!(zc
->zc_cookie
& ZPOOL_EXPORT_AFTER_SPLIT
);
1982 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
1985 if ((error
= get_nvlist(zc
->zc_nvlist_conf
, zc
->zc_nvlist_conf_size
,
1986 zc
->zc_iflags
, &config
))) {
1987 spa_close(spa
, FTAG
);
1991 if (zc
->zc_nvlist_src_size
!= 0 && (error
=
1992 get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
1993 zc
->zc_iflags
, &props
))) {
1994 spa_close(spa
, FTAG
);
1995 nvlist_free(config
);
1999 error
= spa_vdev_split_mirror(spa
, zc
->zc_string
, config
, props
, exp
);
2001 spa_close(spa
, FTAG
);
2003 nvlist_free(config
);
2010 zfs_ioc_vdev_setpath(zfs_cmd_t
*zc
)
2013 char *path
= zc
->zc_value
;
2014 uint64_t guid
= zc
->zc_guid
;
2017 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
2021 error
= spa_vdev_setpath(spa
, guid
, path
);
2022 spa_close(spa
, FTAG
);
2027 zfs_ioc_vdev_setfru(zfs_cmd_t
*zc
)
2030 char *fru
= zc
->zc_value
;
2031 uint64_t guid
= zc
->zc_guid
;
2034 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
2038 error
= spa_vdev_setfru(spa
, guid
, fru
);
2039 spa_close(spa
, FTAG
);
2044 zfs_ioc_objset_stats_impl(zfs_cmd_t
*zc
, objset_t
*os
)
2049 dmu_objset_fast_stat(os
, &zc
->zc_objset_stats
);
2051 if (zc
->zc_nvlist_dst
!= 0 &&
2052 (error
= dsl_prop_get_all(os
, &nv
)) == 0) {
2053 dmu_objset_stats(os
, nv
);
2055 * NB: zvol_get_stats() will read the objset contents,
2056 * which we aren't supposed to do with a
2057 * DS_MODE_USER hold, because it could be
2058 * inconsistent. So this is a bit of a workaround...
2059 * XXX reading with out owning
2061 if (!zc
->zc_objset_stats
.dds_inconsistent
&&
2062 dmu_objset_type(os
) == DMU_OST_ZVOL
) {
2063 error
= zvol_get_stats(os
, nv
);
2069 error
= put_nvlist(zc
, nv
);
2078 * zc_name name of filesystem
2079 * zc_nvlist_dst_size size of buffer for property nvlist
2082 * zc_objset_stats stats
2083 * zc_nvlist_dst property nvlist
2084 * zc_nvlist_dst_size size of property nvlist
2087 zfs_ioc_objset_stats(zfs_cmd_t
*zc
)
2092 error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
);
2094 error
= zfs_ioc_objset_stats_impl(zc
, os
);
2095 dmu_objset_rele(os
, FTAG
);
2103 * zc_name name of filesystem
2104 * zc_nvlist_dst_size size of buffer for property nvlist
2107 * zc_nvlist_dst received property nvlist
2108 * zc_nvlist_dst_size size of received property nvlist
2110 * Gets received properties (distinct from local properties on or after
2111 * SPA_VERSION_RECVD_PROPS) for callers who want to differentiate received from
2112 * local property values.
2115 zfs_ioc_objset_recvd_props(zfs_cmd_t
*zc
)
2121 * Without this check, we would return local property values if the
2122 * caller has not already received properties on or after
2123 * SPA_VERSION_RECVD_PROPS.
2125 if (!dsl_prop_get_hasrecvd(zc
->zc_name
))
2126 return (SET_ERROR(ENOTSUP
));
2128 if (zc
->zc_nvlist_dst
!= 0 &&
2129 (error
= dsl_prop_get_received(zc
->zc_name
, &nv
)) == 0) {
2130 error
= put_nvlist(zc
, nv
);
2138 nvl_add_zplprop(objset_t
*os
, nvlist_t
*props
, zfs_prop_t prop
)
2144 * zfs_get_zplprop() will either find a value or give us
2145 * the default value (if there is one).
2147 if ((error
= zfs_get_zplprop(os
, prop
, &value
)) != 0)
2149 VERIFY(nvlist_add_uint64(props
, zfs_prop_to_name(prop
), value
) == 0);
2155 * zc_name name of filesystem
2156 * zc_nvlist_dst_size size of buffer for zpl property nvlist
2159 * zc_nvlist_dst zpl property nvlist
2160 * zc_nvlist_dst_size size of zpl property nvlist
2163 zfs_ioc_objset_zplprops(zfs_cmd_t
*zc
)
2168 /* XXX reading without owning */
2169 if ((err
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
)))
2172 dmu_objset_fast_stat(os
, &zc
->zc_objset_stats
);
2175 * NB: nvl_add_zplprop() will read the objset contents,
2176 * which we aren't supposed to do with a DS_MODE_USER
2177 * hold, because it could be inconsistent.
2179 if (zc
->zc_nvlist_dst
!= 0 &&
2180 !zc
->zc_objset_stats
.dds_inconsistent
&&
2181 dmu_objset_type(os
) == DMU_OST_ZFS
) {
2184 VERIFY(nvlist_alloc(&nv
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
2185 if ((err
= nvl_add_zplprop(os
, nv
, ZFS_PROP_VERSION
)) == 0 &&
2186 (err
= nvl_add_zplprop(os
, nv
, ZFS_PROP_NORMALIZE
)) == 0 &&
2187 (err
= nvl_add_zplprop(os
, nv
, ZFS_PROP_UTF8ONLY
)) == 0 &&
2188 (err
= nvl_add_zplprop(os
, nv
, ZFS_PROP_CASE
)) == 0)
2189 err
= put_nvlist(zc
, nv
);
2192 err
= SET_ERROR(ENOENT
);
2194 dmu_objset_rele(os
, FTAG
);
2199 dataset_name_hidden(const char *name
)
2202 * Skip over datasets that are not visible in this zone,
2203 * internal datasets (which have a $ in their name), and
2204 * temporary datasets (which have a % in their name).
2206 if (strchr(name
, '$') != NULL
)
2208 if (strchr(name
, '%') != NULL
)
2210 if (!INGLOBALZONE(curproc
) && !zone_dataset_visible(name
, NULL
))
2217 * zc_name name of filesystem
2218 * zc_cookie zap cursor
2219 * zc_nvlist_dst_size size of buffer for property nvlist
2222 * zc_name name of next filesystem
2223 * zc_cookie zap cursor
2224 * zc_objset_stats stats
2225 * zc_nvlist_dst property nvlist
2226 * zc_nvlist_dst_size size of property nvlist
2229 zfs_ioc_dataset_list_next(zfs_cmd_t
*zc
)
2234 size_t orig_len
= strlen(zc
->zc_name
);
2237 if ((error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
))) {
2238 if (error
== ENOENT
)
2239 error
= SET_ERROR(ESRCH
);
2243 p
= strrchr(zc
->zc_name
, '/');
2244 if (p
== NULL
|| p
[1] != '\0')
2245 (void) strlcat(zc
->zc_name
, "/", sizeof (zc
->zc_name
));
2246 p
= zc
->zc_name
+ strlen(zc
->zc_name
);
2249 error
= dmu_dir_list_next(os
,
2250 sizeof (zc
->zc_name
) - (p
- zc
->zc_name
), p
,
2251 NULL
, &zc
->zc_cookie
);
2252 if (error
== ENOENT
)
2253 error
= SET_ERROR(ESRCH
);
2254 } while (error
== 0 && dataset_name_hidden(zc
->zc_name
));
2255 dmu_objset_rele(os
, FTAG
);
2258 * If it's an internal dataset (ie. with a '$' in its name),
2259 * don't try to get stats for it, otherwise we'll return ENOENT.
2261 if (error
== 0 && strchr(zc
->zc_name
, '$') == NULL
) {
2262 error
= zfs_ioc_objset_stats(zc
); /* fill in the stats */
2263 if (error
== ENOENT
) {
2264 /* We lost a race with destroy, get the next one. */
2265 zc
->zc_name
[orig_len
] = '\0';
2274 * zc_name name of filesystem
2275 * zc_cookie zap cursor
2276 * zc_nvlist_dst_size size of buffer for property nvlist
2279 * zc_name name of next snapshot
2280 * zc_objset_stats stats
2281 * zc_nvlist_dst property nvlist
2282 * zc_nvlist_dst_size size of property nvlist
2285 zfs_ioc_snapshot_list_next(zfs_cmd_t
*zc
)
2290 error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
);
2292 return (error
== ENOENT
? ESRCH
: error
);
2296 * A dataset name of maximum length cannot have any snapshots,
2297 * so exit immediately.
2299 if (strlcat(zc
->zc_name
, "@", sizeof (zc
->zc_name
)) >= MAXNAMELEN
) {
2300 dmu_objset_rele(os
, FTAG
);
2301 return (SET_ERROR(ESRCH
));
2304 error
= dmu_snapshot_list_next(os
,
2305 sizeof (zc
->zc_name
) - strlen(zc
->zc_name
),
2306 zc
->zc_name
+ strlen(zc
->zc_name
), &zc
->zc_obj
, &zc
->zc_cookie
,
2309 if (error
== 0 && !zc
->zc_simple
) {
2311 dsl_pool_t
*dp
= os
->os_dsl_dataset
->ds_dir
->dd_pool
;
2313 error
= dsl_dataset_hold_obj(dp
, zc
->zc_obj
, FTAG
, &ds
);
2317 error
= dmu_objset_from_ds(ds
, &ossnap
);
2319 error
= zfs_ioc_objset_stats_impl(zc
, ossnap
);
2320 dsl_dataset_rele(ds
, FTAG
);
2322 } else if (error
== ENOENT
) {
2323 error
= SET_ERROR(ESRCH
);
2326 dmu_objset_rele(os
, FTAG
);
2327 /* if we failed, undo the @ that we tacked on to zc_name */
2329 *strchr(zc
->zc_name
, '@') = '\0';
2334 zfs_prop_set_userquota(const char *dsname
, nvpair_t
*pair
)
2336 const char *propname
= nvpair_name(pair
);
2338 unsigned int vallen
;
2341 zfs_userquota_prop_t type
;
2347 if (nvpair_type(pair
) == DATA_TYPE_NVLIST
) {
2349 VERIFY(nvpair_value_nvlist(pair
, &attrs
) == 0);
2350 if (nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
2352 return (SET_ERROR(EINVAL
));
2356 * A correctly constructed propname is encoded as
2357 * userquota@<rid>-<domain>.
2359 if ((dash
= strchr(propname
, '-')) == NULL
||
2360 nvpair_value_uint64_array(pair
, &valary
, &vallen
) != 0 ||
2362 return (SET_ERROR(EINVAL
));
2369 err
= zfs_sb_hold(dsname
, FTAG
, &zsb
, B_FALSE
);
2371 err
= zfs_set_userquota(zsb
, type
, domain
, rid
, quota
);
2372 zfs_sb_rele(zsb
, FTAG
);
2379 * If the named property is one that has a special function to set its value,
2380 * return 0 on success and a positive error code on failure; otherwise if it is
2381 * not one of the special properties handled by this function, return -1.
2383 * XXX: It would be better for callers of the property interface if we handled
2384 * these special cases in dsl_prop.c (in the dsl layer).
2387 zfs_prop_set_special(const char *dsname
, zprop_source_t source
,
2390 const char *propname
= nvpair_name(pair
);
2391 zfs_prop_t prop
= zfs_name_to_prop(propname
);
2395 if (prop
== ZPROP_INVAL
) {
2396 if (zfs_prop_userquota(propname
))
2397 return (zfs_prop_set_userquota(dsname
, pair
));
2401 if (nvpair_type(pair
) == DATA_TYPE_NVLIST
) {
2403 VERIFY(nvpair_value_nvlist(pair
, &attrs
) == 0);
2404 VERIFY(nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
2408 if (zfs_prop_get_type(prop
) == PROP_TYPE_STRING
)
2411 VERIFY(0 == nvpair_value_uint64(pair
, &intval
));
2414 case ZFS_PROP_QUOTA
:
2415 err
= dsl_dir_set_quota(dsname
, source
, intval
);
2417 case ZFS_PROP_REFQUOTA
:
2418 err
= dsl_dataset_set_refquota(dsname
, source
, intval
);
2420 case ZFS_PROP_RESERVATION
:
2421 err
= dsl_dir_set_reservation(dsname
, source
, intval
);
2423 case ZFS_PROP_REFRESERVATION
:
2424 err
= dsl_dataset_set_refreservation(dsname
, source
, intval
);
2426 case ZFS_PROP_VOLSIZE
:
2427 err
= zvol_set_volsize(dsname
, intval
);
2429 case ZFS_PROP_SNAPDEV
:
2430 err
= zvol_set_snapdev(dsname
, intval
);
2432 case ZFS_PROP_VERSION
:
2436 if ((err
= zfs_sb_hold(dsname
, FTAG
, &zsb
, B_TRUE
)) != 0)
2439 err
= zfs_set_version(zsb
, intval
);
2440 zfs_sb_rele(zsb
, FTAG
);
2442 if (err
== 0 && intval
>= ZPL_VERSION_USERSPACE
) {
2445 zc
= kmem_zalloc(sizeof (zfs_cmd_t
), KM_SLEEP
);
2446 (void) strcpy(zc
->zc_name
, dsname
);
2447 (void) zfs_ioc_userspace_upgrade(zc
);
2448 kmem_free(zc
, sizeof (zfs_cmd_t
));
2460 * This function is best effort. If it fails to set any of the given properties,
2461 * it continues to set as many as it can and returns the last error
2462 * encountered. If the caller provides a non-NULL errlist, it will be filled in
2463 * with the list of names of all the properties that failed along with the
2464 * corresponding error numbers.
2466 * If every property is set successfully, zero is returned and errlist is not
2470 zfs_set_prop_nvlist(const char *dsname
, zprop_source_t source
, nvlist_t
*nvl
,
2479 nvlist_t
*genericnvl
= fnvlist_alloc();
2480 nvlist_t
*retrynvl
= fnvlist_alloc();
2483 while ((pair
= nvlist_next_nvpair(nvl
, pair
)) != NULL
) {
2484 const char *propname
= nvpair_name(pair
);
2485 zfs_prop_t prop
= zfs_name_to_prop(propname
);
2488 /* decode the property value */
2490 if (nvpair_type(pair
) == DATA_TYPE_NVLIST
) {
2492 attrs
= fnvpair_value_nvlist(pair
);
2493 if (nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
2495 err
= SET_ERROR(EINVAL
);
2498 /* Validate value type */
2499 if (err
== 0 && prop
== ZPROP_INVAL
) {
2500 if (zfs_prop_user(propname
)) {
2501 if (nvpair_type(propval
) != DATA_TYPE_STRING
)
2502 err
= SET_ERROR(EINVAL
);
2503 } else if (zfs_prop_userquota(propname
)) {
2504 if (nvpair_type(propval
) !=
2505 DATA_TYPE_UINT64_ARRAY
)
2506 err
= SET_ERROR(EINVAL
);
2508 err
= SET_ERROR(EINVAL
);
2510 } else if (err
== 0) {
2511 if (nvpair_type(propval
) == DATA_TYPE_STRING
) {
2512 if (zfs_prop_get_type(prop
) != PROP_TYPE_STRING
)
2513 err
= SET_ERROR(EINVAL
);
2514 } else if (nvpair_type(propval
) == DATA_TYPE_UINT64
) {
2517 intval
= fnvpair_value_uint64(propval
);
2519 switch (zfs_prop_get_type(prop
)) {
2520 case PROP_TYPE_NUMBER
:
2522 case PROP_TYPE_STRING
:
2523 err
= SET_ERROR(EINVAL
);
2525 case PROP_TYPE_INDEX
:
2526 if (zfs_prop_index_to_string(prop
,
2527 intval
, &unused
) != 0)
2528 err
= SET_ERROR(EINVAL
);
2532 "unknown property type");
2535 err
= SET_ERROR(EINVAL
);
2539 /* Validate permissions */
2541 err
= zfs_check_settable(dsname
, pair
, CRED());
2544 err
= zfs_prop_set_special(dsname
, source
, pair
);
2547 * For better performance we build up a list of
2548 * properties to set in a single transaction.
2550 err
= nvlist_add_nvpair(genericnvl
, pair
);
2551 } else if (err
!= 0 && nvl
!= retrynvl
) {
2553 * This may be a spurious error caused by
2554 * receiving quota and reservation out of order.
2555 * Try again in a second pass.
2557 err
= nvlist_add_nvpair(retrynvl
, pair
);
2562 if (errlist
!= NULL
)
2563 fnvlist_add_int32(errlist
, propname
, err
);
2568 if (nvl
!= retrynvl
&& !nvlist_empty(retrynvl
)) {
2573 if (!nvlist_empty(genericnvl
) &&
2574 dsl_props_set(dsname
, source
, genericnvl
) != 0) {
2576 * If this fails, we still want to set as many properties as we
2577 * can, so try setting them individually.
2580 while ((pair
= nvlist_next_nvpair(genericnvl
, pair
)) != NULL
) {
2581 const char *propname
= nvpair_name(pair
);
2585 if (nvpair_type(pair
) == DATA_TYPE_NVLIST
) {
2587 attrs
= fnvpair_value_nvlist(pair
);
2588 propval
= fnvlist_lookup_nvpair(attrs
,
2592 if (nvpair_type(propval
) == DATA_TYPE_STRING
) {
2593 strval
= fnvpair_value_string(propval
);
2594 err
= dsl_prop_set_string(dsname
, propname
,
2597 intval
= fnvpair_value_uint64(propval
);
2598 err
= dsl_prop_set_int(dsname
, propname
, source
,
2603 if (errlist
!= NULL
) {
2604 fnvlist_add_int32(errlist
, propname
,
2611 nvlist_free(genericnvl
);
2612 nvlist_free(retrynvl
);
2618 * Check that all the properties are valid user properties.
2621 zfs_check_userprops(const char *fsname
, nvlist_t
*nvl
)
2623 nvpair_t
*pair
= NULL
;
2626 while ((pair
= nvlist_next_nvpair(nvl
, pair
)) != NULL
) {
2627 const char *propname
= nvpair_name(pair
);
2629 if (!zfs_prop_user(propname
) ||
2630 nvpair_type(pair
) != DATA_TYPE_STRING
)
2631 return (SET_ERROR(EINVAL
));
2633 if ((error
= zfs_secpolicy_write_perms(fsname
,
2634 ZFS_DELEG_PERM_USERPROP
, CRED())))
2637 if (strlen(propname
) >= ZAP_MAXNAMELEN
)
2638 return (SET_ERROR(ENAMETOOLONG
));
2640 if (strlen(fnvpair_value_string(pair
)) >= ZAP_MAXVALUELEN
)
2641 return (SET_ERROR(E2BIG
));
2647 props_skip(nvlist_t
*props
, nvlist_t
*skipped
, nvlist_t
**newprops
)
2651 VERIFY(nvlist_alloc(newprops
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
2654 while ((pair
= nvlist_next_nvpair(props
, pair
)) != NULL
) {
2655 if (nvlist_exists(skipped
, nvpair_name(pair
)))
2658 VERIFY(nvlist_add_nvpair(*newprops
, pair
) == 0);
2663 clear_received_props(const char *dsname
, nvlist_t
*props
,
2667 nvlist_t
*cleared_props
= NULL
;
2668 props_skip(props
, skipped
, &cleared_props
);
2669 if (!nvlist_empty(cleared_props
)) {
2671 * Acts on local properties until the dataset has received
2672 * properties at least once on or after SPA_VERSION_RECVD_PROPS.
2674 zprop_source_t flags
= (ZPROP_SRC_NONE
|
2675 (dsl_prop_get_hasrecvd(dsname
) ? ZPROP_SRC_RECEIVED
: 0));
2676 err
= zfs_set_prop_nvlist(dsname
, flags
, cleared_props
, NULL
);
2678 nvlist_free(cleared_props
);
2684 * zc_name name of filesystem
2685 * zc_value name of property to set
2686 * zc_nvlist_src{_size} nvlist of properties to apply
2687 * zc_cookie received properties flag
2690 * zc_nvlist_dst{_size} error for each unapplied received property
2693 zfs_ioc_set_prop(zfs_cmd_t
*zc
)
2696 boolean_t received
= zc
->zc_cookie
;
2697 zprop_source_t source
= (received
? ZPROP_SRC_RECEIVED
:
2702 if ((error
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
2703 zc
->zc_iflags
, &nvl
)) != 0)
2707 nvlist_t
*origprops
;
2709 if (dsl_prop_get_received(zc
->zc_name
, &origprops
) == 0) {
2710 (void) clear_received_props(zc
->zc_name
,
2712 nvlist_free(origprops
);
2715 error
= dsl_prop_set_hasrecvd(zc
->zc_name
);
2718 errors
= fnvlist_alloc();
2720 error
= zfs_set_prop_nvlist(zc
->zc_name
, source
, nvl
, errors
);
2722 if (zc
->zc_nvlist_dst
!= 0 && errors
!= NULL
) {
2723 (void) put_nvlist(zc
, errors
);
2726 nvlist_free(errors
);
2733 * zc_name name of filesystem
2734 * zc_value name of property to inherit
2735 * zc_cookie revert to received value if TRUE
2740 zfs_ioc_inherit_prop(zfs_cmd_t
*zc
)
2742 const char *propname
= zc
->zc_value
;
2743 zfs_prop_t prop
= zfs_name_to_prop(propname
);
2744 boolean_t received
= zc
->zc_cookie
;
2745 zprop_source_t source
= (received
2746 ? ZPROP_SRC_NONE
/* revert to received value, if any */
2747 : ZPROP_SRC_INHERITED
); /* explicitly inherit */
2756 * zfs_prop_set_special() expects properties in the form of an
2757 * nvpair with type info.
2759 if (prop
== ZPROP_INVAL
) {
2760 if (!zfs_prop_user(propname
))
2761 return (SET_ERROR(EINVAL
));
2763 type
= PROP_TYPE_STRING
;
2764 } else if (prop
== ZFS_PROP_VOLSIZE
||
2765 prop
== ZFS_PROP_VERSION
) {
2766 return (SET_ERROR(EINVAL
));
2768 type
= zfs_prop_get_type(prop
);
2771 VERIFY(nvlist_alloc(&dummy
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
2774 case PROP_TYPE_STRING
:
2775 VERIFY(0 == nvlist_add_string(dummy
, propname
, ""));
2777 case PROP_TYPE_NUMBER
:
2778 case PROP_TYPE_INDEX
:
2779 VERIFY(0 == nvlist_add_uint64(dummy
, propname
, 0));
2783 return (SET_ERROR(EINVAL
));
2786 pair
= nvlist_next_nvpair(dummy
, NULL
);
2787 err
= zfs_prop_set_special(zc
->zc_name
, source
, pair
);
2790 return (err
); /* special property already handled */
2793 * Only check this in the non-received case. We want to allow
2794 * 'inherit -S' to revert non-inheritable properties like quota
2795 * and reservation to the received or default values even though
2796 * they are not considered inheritable.
2798 if (prop
!= ZPROP_INVAL
&& !zfs_prop_inheritable(prop
))
2799 return (SET_ERROR(EINVAL
));
2802 /* property name has been validated by zfs_secpolicy_inherit_prop() */
2803 return (dsl_prop_inherit(zc
->zc_name
, zc
->zc_value
, source
));
2807 zfs_ioc_pool_set_props(zfs_cmd_t
*zc
)
2814 if ((error
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
2815 zc
->zc_iflags
, &props
)))
2819 * If the only property is the configfile, then just do a spa_lookup()
2820 * to handle the faulted case.
2822 pair
= nvlist_next_nvpair(props
, NULL
);
2823 if (pair
!= NULL
&& strcmp(nvpair_name(pair
),
2824 zpool_prop_to_name(ZPOOL_PROP_CACHEFILE
)) == 0 &&
2825 nvlist_next_nvpair(props
, pair
) == NULL
) {
2826 mutex_enter(&spa_namespace_lock
);
2827 if ((spa
= spa_lookup(zc
->zc_name
)) != NULL
) {
2828 spa_configfile_set(spa
, props
, B_FALSE
);
2829 spa_config_sync(spa
, B_FALSE
, B_TRUE
);
2831 mutex_exit(&spa_namespace_lock
);
2838 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0) {
2843 error
= spa_prop_set(spa
, props
);
2846 spa_close(spa
, FTAG
);
2852 zfs_ioc_pool_get_props(zfs_cmd_t
*zc
)
2856 nvlist_t
*nvp
= NULL
;
2858 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0) {
2860 * If the pool is faulted, there may be properties we can still
2861 * get (such as altroot and cachefile), so attempt to get them
2864 mutex_enter(&spa_namespace_lock
);
2865 if ((spa
= spa_lookup(zc
->zc_name
)) != NULL
)
2866 error
= spa_prop_get(spa
, &nvp
);
2867 mutex_exit(&spa_namespace_lock
);
2869 error
= spa_prop_get(spa
, &nvp
);
2870 spa_close(spa
, FTAG
);
2873 if (error
== 0 && zc
->zc_nvlist_dst
!= 0)
2874 error
= put_nvlist(zc
, nvp
);
2876 error
= SET_ERROR(EFAULT
);
2884 * zc_name name of filesystem
2885 * zc_nvlist_src{_size} nvlist of delegated permissions
2886 * zc_perm_action allow/unallow flag
2891 zfs_ioc_set_fsacl(zfs_cmd_t
*zc
)
2894 nvlist_t
*fsaclnv
= NULL
;
2896 if ((error
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
2897 zc
->zc_iflags
, &fsaclnv
)) != 0)
2901 * Verify nvlist is constructed correctly
2903 if ((error
= zfs_deleg_verify_nvlist(fsaclnv
)) != 0) {
2904 nvlist_free(fsaclnv
);
2905 return (SET_ERROR(EINVAL
));
2909 * If we don't have PRIV_SYS_MOUNT, then validate
2910 * that user is allowed to hand out each permission in
2914 error
= secpolicy_zfs(CRED());
2916 if (zc
->zc_perm_action
== B_FALSE
) {
2917 error
= dsl_deleg_can_allow(zc
->zc_name
,
2920 error
= dsl_deleg_can_unallow(zc
->zc_name
,
2926 error
= dsl_deleg_set(zc
->zc_name
, fsaclnv
, zc
->zc_perm_action
);
2928 nvlist_free(fsaclnv
);
2934 * zc_name name of filesystem
2937 * zc_nvlist_src{_size} nvlist of delegated permissions
2940 zfs_ioc_get_fsacl(zfs_cmd_t
*zc
)
2945 if ((error
= dsl_deleg_get(zc
->zc_name
, &nvp
)) == 0) {
2946 error
= put_nvlist(zc
, nvp
);
2955 zfs_create_cb(objset_t
*os
, void *arg
, cred_t
*cr
, dmu_tx_t
*tx
)
2957 zfs_creat_t
*zct
= arg
;
2959 zfs_create_fs(os
, cr
, zct
->zct_zplprops
, tx
);
2962 #define ZFS_PROP_UNDEFINED ((uint64_t)-1)
2966 * os parent objset pointer (NULL if root fs)
2967 * fuids_ok fuids allowed in this version of the spa?
2968 * sa_ok SAs allowed in this version of the spa?
2969 * createprops list of properties requested by creator
2972 * zplprops values for the zplprops we attach to the master node object
2973 * is_ci true if requested file system will be purely case-insensitive
2975 * Determine the settings for utf8only, normalization and
2976 * casesensitivity. Specific values may have been requested by the
2977 * creator and/or we can inherit values from the parent dataset. If
2978 * the file system is of too early a vintage, a creator can not
2979 * request settings for these properties, even if the requested
2980 * setting is the default value. We don't actually want to create dsl
2981 * properties for these, so remove them from the source nvlist after
2985 zfs_fill_zplprops_impl(objset_t
*os
, uint64_t zplver
,
2986 boolean_t fuids_ok
, boolean_t sa_ok
, nvlist_t
*createprops
,
2987 nvlist_t
*zplprops
, boolean_t
*is_ci
)
2989 uint64_t sense
= ZFS_PROP_UNDEFINED
;
2990 uint64_t norm
= ZFS_PROP_UNDEFINED
;
2991 uint64_t u8
= ZFS_PROP_UNDEFINED
;
2994 ASSERT(zplprops
!= NULL
);
2997 * Pull out creator prop choices, if any.
3000 (void) nvlist_lookup_uint64(createprops
,
3001 zfs_prop_to_name(ZFS_PROP_VERSION
), &zplver
);
3002 (void) nvlist_lookup_uint64(createprops
,
3003 zfs_prop_to_name(ZFS_PROP_NORMALIZE
), &norm
);
3004 (void) nvlist_remove_all(createprops
,
3005 zfs_prop_to_name(ZFS_PROP_NORMALIZE
));
3006 (void) nvlist_lookup_uint64(createprops
,
3007 zfs_prop_to_name(ZFS_PROP_UTF8ONLY
), &u8
);
3008 (void) nvlist_remove_all(createprops
,
3009 zfs_prop_to_name(ZFS_PROP_UTF8ONLY
));
3010 (void) nvlist_lookup_uint64(createprops
,
3011 zfs_prop_to_name(ZFS_PROP_CASE
), &sense
);
3012 (void) nvlist_remove_all(createprops
,
3013 zfs_prop_to_name(ZFS_PROP_CASE
));
3017 * If the zpl version requested is whacky or the file system
3018 * or pool is version is too "young" to support normalization
3019 * and the creator tried to set a value for one of the props,
3022 if ((zplver
< ZPL_VERSION_INITIAL
|| zplver
> ZPL_VERSION
) ||
3023 (zplver
>= ZPL_VERSION_FUID
&& !fuids_ok
) ||
3024 (zplver
>= ZPL_VERSION_SA
&& !sa_ok
) ||
3025 (zplver
< ZPL_VERSION_NORMALIZATION
&&
3026 (norm
!= ZFS_PROP_UNDEFINED
|| u8
!= ZFS_PROP_UNDEFINED
||
3027 sense
!= ZFS_PROP_UNDEFINED
)))
3028 return (SET_ERROR(ENOTSUP
));
3031 * Put the version in the zplprops
3033 VERIFY(nvlist_add_uint64(zplprops
,
3034 zfs_prop_to_name(ZFS_PROP_VERSION
), zplver
) == 0);
3036 if (norm
== ZFS_PROP_UNDEFINED
&&
3037 (error
= zfs_get_zplprop(os
, ZFS_PROP_NORMALIZE
, &norm
)) != 0)
3039 VERIFY(nvlist_add_uint64(zplprops
,
3040 zfs_prop_to_name(ZFS_PROP_NORMALIZE
), norm
) == 0);
3043 * If we're normalizing, names must always be valid UTF-8 strings.
3047 if (u8
== ZFS_PROP_UNDEFINED
&&
3048 (error
= zfs_get_zplprop(os
, ZFS_PROP_UTF8ONLY
, &u8
)) != 0)
3050 VERIFY(nvlist_add_uint64(zplprops
,
3051 zfs_prop_to_name(ZFS_PROP_UTF8ONLY
), u8
) == 0);
3053 if (sense
== ZFS_PROP_UNDEFINED
&&
3054 (error
= zfs_get_zplprop(os
, ZFS_PROP_CASE
, &sense
)) != 0)
3056 VERIFY(nvlist_add_uint64(zplprops
,
3057 zfs_prop_to_name(ZFS_PROP_CASE
), sense
) == 0);
3060 *is_ci
= (sense
== ZFS_CASE_INSENSITIVE
);
3066 zfs_fill_zplprops(const char *dataset
, nvlist_t
*createprops
,
3067 nvlist_t
*zplprops
, boolean_t
*is_ci
)
3069 boolean_t fuids_ok
, sa_ok
;
3070 uint64_t zplver
= ZPL_VERSION
;
3071 objset_t
*os
= NULL
;
3072 char parentname
[MAXNAMELEN
];
3078 (void) strlcpy(parentname
, dataset
, sizeof (parentname
));
3079 cp
= strrchr(parentname
, '/');
3083 if ((error
= spa_open(dataset
, &spa
, FTAG
)) != 0)
3086 spa_vers
= spa_version(spa
);
3087 spa_close(spa
, FTAG
);
3089 zplver
= zfs_zpl_version_map(spa_vers
);
3090 fuids_ok
= (zplver
>= ZPL_VERSION_FUID
);
3091 sa_ok
= (zplver
>= ZPL_VERSION_SA
);
3094 * Open parent object set so we can inherit zplprop values.
3096 if ((error
= dmu_objset_hold(parentname
, FTAG
, &os
)) != 0)
3099 error
= zfs_fill_zplprops_impl(os
, zplver
, fuids_ok
, sa_ok
, createprops
,
3101 dmu_objset_rele(os
, FTAG
);
3106 zfs_fill_zplprops_root(uint64_t spa_vers
, nvlist_t
*createprops
,
3107 nvlist_t
*zplprops
, boolean_t
*is_ci
)
3111 uint64_t zplver
= ZPL_VERSION
;
3114 zplver
= zfs_zpl_version_map(spa_vers
);
3115 fuids_ok
= (zplver
>= ZPL_VERSION_FUID
);
3116 sa_ok
= (zplver
>= ZPL_VERSION_SA
);
3118 error
= zfs_fill_zplprops_impl(NULL
, zplver
, fuids_ok
, sa_ok
,
3119 createprops
, zplprops
, is_ci
);
3125 * "type" -> dmu_objset_type_t (int32)
3126 * (optional) "props" -> { prop -> value }
3129 * outnvl: propname -> error code (int32)
3132 zfs_ioc_create(const char *fsname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
3135 zfs_creat_t zct
= { 0 };
3136 nvlist_t
*nvprops
= NULL
;
3137 void (*cbfunc
)(objset_t
*os
, void *arg
, cred_t
*cr
, dmu_tx_t
*tx
);
3139 dmu_objset_type_t type
;
3140 boolean_t is_insensitive
= B_FALSE
;
3142 if (nvlist_lookup_int32(innvl
, "type", &type32
) != 0)
3143 return (SET_ERROR(EINVAL
));
3145 (void) nvlist_lookup_nvlist(innvl
, "props", &nvprops
);
3149 cbfunc
= zfs_create_cb
;
3153 cbfunc
= zvol_create_cb
;
3160 if (strchr(fsname
, '@') ||
3161 strchr(fsname
, '%'))
3162 return (SET_ERROR(EINVAL
));
3164 zct
.zct_props
= nvprops
;
3167 return (SET_ERROR(EINVAL
));
3169 if (type
== DMU_OST_ZVOL
) {
3170 uint64_t volsize
, volblocksize
;
3172 if (nvprops
== NULL
)
3173 return (SET_ERROR(EINVAL
));
3174 if (nvlist_lookup_uint64(nvprops
,
3175 zfs_prop_to_name(ZFS_PROP_VOLSIZE
), &volsize
) != 0)
3176 return (SET_ERROR(EINVAL
));
3178 if ((error
= nvlist_lookup_uint64(nvprops
,
3179 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE
),
3180 &volblocksize
)) != 0 && error
!= ENOENT
)
3181 return (SET_ERROR(EINVAL
));
3184 volblocksize
= zfs_prop_default_numeric(
3185 ZFS_PROP_VOLBLOCKSIZE
);
3187 if ((error
= zvol_check_volblocksize(
3188 volblocksize
)) != 0 ||
3189 (error
= zvol_check_volsize(volsize
,
3190 volblocksize
)) != 0)
3192 } else if (type
== DMU_OST_ZFS
) {
3196 * We have to have normalization and
3197 * case-folding flags correct when we do the
3198 * file system creation, so go figure them out
3201 VERIFY(nvlist_alloc(&zct
.zct_zplprops
,
3202 NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
3203 error
= zfs_fill_zplprops(fsname
, nvprops
,
3204 zct
.zct_zplprops
, &is_insensitive
);
3206 nvlist_free(zct
.zct_zplprops
);
3211 error
= dmu_objset_create(fsname
, type
,
3212 is_insensitive
? DS_FLAG_CI_DATASET
: 0, cbfunc
, &zct
);
3213 nvlist_free(zct
.zct_zplprops
);
3216 * It would be nice to do this atomically.
3219 error
= zfs_set_prop_nvlist(fsname
, ZPROP_SRC_LOCAL
,
3222 (void) dsl_destroy_head(fsname
);
3226 if (error
== 0 && type
== DMU_OST_ZVOL
)
3227 zvol_create_minors(fsname
);
3235 * "origin" -> name of origin snapshot
3236 * (optional) "props" -> { prop -> value }
3240 * outnvl: propname -> error code (int32)
3243 zfs_ioc_clone(const char *fsname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
3246 nvlist_t
*nvprops
= NULL
;
3249 if (nvlist_lookup_string(innvl
, "origin", &origin_name
) != 0)
3250 return (SET_ERROR(EINVAL
));
3251 (void) nvlist_lookup_nvlist(innvl
, "props", &nvprops
);
3253 if (strchr(fsname
, '@') ||
3254 strchr(fsname
, '%'))
3255 return (SET_ERROR(EINVAL
));
3257 if (dataset_namecheck(origin_name
, NULL
, NULL
) != 0)
3258 return (SET_ERROR(EINVAL
));
3259 error
= dmu_objset_clone(fsname
, origin_name
);
3264 * It would be nice to do this atomically.
3267 error
= zfs_set_prop_nvlist(fsname
, ZPROP_SRC_LOCAL
,
3270 (void) dsl_destroy_head(fsname
);
3275 zvol_create_minors(fsname
);
3283 * "snaps" -> { snapshot1, snapshot2 }
3284 * (optional) "props" -> { prop -> value (string) }
3287 * outnvl: snapshot -> error code (int32)
3290 zfs_ioc_snapshot(const char *poolname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
3293 nvlist_t
*props
= NULL
;
3295 nvpair_t
*pair
, *pair2
;
3297 (void) nvlist_lookup_nvlist(innvl
, "props", &props
);
3298 if ((error
= zfs_check_userprops(poolname
, props
)) != 0)
3301 if (!nvlist_empty(props
) &&
3302 zfs_earlier_version(poolname
, SPA_VERSION_SNAP_PROPS
))
3303 return (SET_ERROR(ENOTSUP
));
3305 if (nvlist_lookup_nvlist(innvl
, "snaps", &snaps
) != 0)
3306 return (SET_ERROR(EINVAL
));
3307 poollen
= strlen(poolname
);
3308 for (pair
= nvlist_next_nvpair(snaps
, NULL
); pair
!= NULL
;
3309 pair
= nvlist_next_nvpair(snaps
, pair
)) {
3310 const char *name
= nvpair_name(pair
);
3311 const char *cp
= strchr(name
, '@');
3314 * The snap name must contain an @, and the part after it must
3315 * contain only valid characters.
3318 zfs_component_namecheck(cp
+ 1, NULL
, NULL
) != 0)
3319 return (SET_ERROR(EINVAL
));
3322 * The snap must be in the specified pool.
3324 if (strncmp(name
, poolname
, poollen
) != 0 ||
3325 (name
[poollen
] != '/' && name
[poollen
] != '@'))
3326 return (SET_ERROR(EXDEV
));
3328 /* This must be the only snap of this fs. */
3329 for (pair2
= nvlist_next_nvpair(snaps
, pair
);
3330 pair2
!= NULL
; pair2
= nvlist_next_nvpair(snaps
, pair2
)) {
3331 if (strncmp(name
, nvpair_name(pair2
), cp
- name
+ 1)
3333 return (SET_ERROR(EXDEV
));
3338 error
= dsl_dataset_snapshot(snaps
, props
, outnvl
);
3342 zvol_create_minors(poolname
);
3349 * innvl: "message" -> string
3353 zfs_ioc_log_history(const char *unused
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
3361 * The poolname in the ioctl is not set, we get it from the TSD,
3362 * which was set at the end of the last successful ioctl that allows
3363 * logging. The secpolicy func already checked that it is set.
3364 * Only one log ioctl is allowed after each successful ioctl, so
3365 * we clear the TSD here.
3367 poolname
= tsd_get(zfs_allow_log_key
);
3368 (void) tsd_set(zfs_allow_log_key
, NULL
);
3369 error
= spa_open(poolname
, &spa
, FTAG
);
3374 if (nvlist_lookup_string(innvl
, "message", &message
) != 0) {
3375 spa_close(spa
, FTAG
);
3376 return (SET_ERROR(EINVAL
));
3379 if (spa_version(spa
) < SPA_VERSION_ZPOOL_HISTORY
) {
3380 spa_close(spa
, FTAG
);
3381 return (SET_ERROR(ENOTSUP
));
3384 error
= spa_history_log(spa
, message
);
3385 spa_close(spa
, FTAG
);
3390 * The dp_config_rwlock must not be held when calling this, because the
3391 * unmount may need to write out data.
3393 * This function is best-effort. Callers must deal gracefully if it
3394 * remains mounted (or is remounted after this call).
3396 * XXX: This function should detect a failure to unmount a snapdir of a dataset
3397 * and return the appropriate error code when it is mounted. Its Illumos and
3398 * FreeBSD counterparts do this. We do not do this on Linux because there is no
3399 * clear way to access the mount information that FreeBSD and Illumos use to
3400 * distinguish between things with mounted snapshot directories, and things
3401 * without mounted snapshot directories, which include zvols. Returning a
3402 * failure for the latter causes `zfs destroy` to fail on zvol snapshots.
3405 zfs_unmount_snap(const char *snapname
)
3407 zfs_sb_t
*zsb
= NULL
;
3412 if ((ptr
= strchr(snapname
, '@')) == NULL
)
3415 dsname
= kmem_alloc(ptr
- snapname
+ 1, KM_SLEEP
);
3416 strlcpy(dsname
, snapname
, ptr
- snapname
+ 1);
3417 fullname
= strdup(snapname
);
3419 if (zfs_sb_hold(dsname
, FTAG
, &zsb
, B_FALSE
) == 0) {
3420 ASSERT(!dsl_pool_config_held(dmu_objset_pool(zsb
->z_os
)));
3421 (void) zfsctl_unmount_snapshot(zsb
, fullname
, MNT_FORCE
);
3422 zfs_sb_rele(zsb
, FTAG
);
3425 kmem_free(dsname
, ptr
- snapname
+ 1);
3433 zfs_unmount_snap_cb(const char *snapname
, void *arg
)
3435 return (zfs_unmount_snap(snapname
));
3439 * When a clone is destroyed, its origin may also need to be destroyed,
3440 * in which case it must be unmounted. This routine will do that unmount
3444 zfs_destroy_unmount_origin(const char *fsname
)
3450 error
= dmu_objset_hold(fsname
, FTAG
, &os
);
3453 ds
= dmu_objset_ds(os
);
3454 if (dsl_dir_is_clone(ds
->ds_dir
) && DS_IS_DEFER_DESTROY(ds
->ds_prev
)) {
3455 char originname
[MAXNAMELEN
];
3456 dsl_dataset_name(ds
->ds_prev
, originname
);
3457 dmu_objset_rele(os
, FTAG
);
3458 (void) zfs_unmount_snap(originname
);
3460 dmu_objset_rele(os
, FTAG
);
3466 * "snaps" -> { snapshot1, snapshot2 }
3467 * (optional boolean) "defer"
3470 * outnvl: snapshot -> error code (int32)
3474 zfs_ioc_destroy_snaps(const char *poolname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
3480 if (nvlist_lookup_nvlist(innvl
, "snaps", &snaps
) != 0)
3481 return (SET_ERROR(EINVAL
));
3482 defer
= nvlist_exists(innvl
, "defer");
3484 for (pair
= nvlist_next_nvpair(snaps
, NULL
); pair
!= NULL
;
3485 pair
= nvlist_next_nvpair(snaps
, pair
)) {
3486 (void) zfs_unmount_snap(nvpair_name(pair
));
3487 (void) zvol_remove_minor(nvpair_name(pair
));
3490 return (dsl_destroy_snapshots_nvl(snaps
, defer
, outnvl
));
3494 * Create bookmarks. Bookmark names are of the form <fs>#<bmark>.
3495 * All bookmarks must be in the same pool.
3498 * bookmark1 -> snapshot1, bookmark2 -> snapshot2
3501 * outnvl: bookmark -> error code (int32)
3506 zfs_ioc_bookmark(const char *poolname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
3508 nvpair_t
*pair
, *pair2
;
3510 for (pair
= nvlist_next_nvpair(innvl
, NULL
);
3511 pair
!= NULL
; pair
= nvlist_next_nvpair(innvl
, pair
)) {
3515 * Verify the snapshot argument.
3517 if (nvpair_value_string(pair
, &snap_name
) != 0)
3518 return (SET_ERROR(EINVAL
));
3521 /* Verify that the keys (bookmarks) are unique */
3522 for (pair2
= nvlist_next_nvpair(innvl
, pair
);
3523 pair2
!= NULL
; pair2
= nvlist_next_nvpair(innvl
, pair2
)) {
3524 if (strcmp(nvpair_name(pair
), nvpair_name(pair2
)) == 0)
3525 return (SET_ERROR(EINVAL
));
3529 return (dsl_bookmark_create(innvl
, outnvl
));
3534 * property 1, property 2, ...
3538 * bookmark name 1 -> { property 1, property 2, ... },
3539 * bookmark name 2 -> { property 1, property 2, ... }
3544 zfs_ioc_get_bookmarks(const char *fsname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
3546 return (dsl_get_bookmarks(fsname
, innvl
, outnvl
));
3551 * bookmark name 1, bookmark name 2
3554 * outnvl: bookmark -> error code (int32)
3558 zfs_ioc_destroy_bookmarks(const char *poolname
, nvlist_t
*innvl
,
3564 poollen
= strlen(poolname
);
3565 for (pair
= nvlist_next_nvpair(innvl
, NULL
);
3566 pair
!= NULL
; pair
= nvlist_next_nvpair(innvl
, pair
)) {
3567 const char *name
= nvpair_name(pair
);
3568 const char *cp
= strchr(name
, '#');
3571 * The bookmark name must contain an #, and the part after it
3572 * must contain only valid characters.
3575 zfs_component_namecheck(cp
+ 1, NULL
, NULL
) != 0)
3576 return (SET_ERROR(EINVAL
));
3579 * The bookmark must be in the specified pool.
3581 if (strncmp(name
, poolname
, poollen
) != 0 ||
3582 (name
[poollen
] != '/' && name
[poollen
] != '#'))
3583 return (SET_ERROR(EXDEV
));
3586 error
= dsl_bookmark_destroy(innvl
, outnvl
);
3592 * zc_name name of dataset to destroy
3593 * zc_objset_type type of objset
3594 * zc_defer_destroy mark for deferred destroy
3599 zfs_ioc_destroy(zfs_cmd_t
*zc
)
3603 if (zc
->zc_objset_type
== DMU_OST_ZFS
) {
3604 err
= zfs_unmount_snap(zc
->zc_name
);
3609 if (strchr(zc
->zc_name
, '@'))
3610 err
= dsl_destroy_snapshot(zc
->zc_name
, zc
->zc_defer_destroy
);
3612 err
= dsl_destroy_head(zc
->zc_name
);
3613 if (zc
->zc_objset_type
== DMU_OST_ZVOL
&& err
== 0)
3614 (void) zvol_remove_minor(zc
->zc_name
);
3619 * fsname is name of dataset to rollback (to most recent snapshot)
3621 * innvl is not used.
3623 * outnvl: "target" -> name of most recent snapshot
3628 zfs_ioc_rollback(const char *fsname
, nvlist_t
*args
, nvlist_t
*outnvl
)
3633 if (get_zfs_sb(fsname
, &zsb
) == 0) {
3634 error
= zfs_suspend_fs(zsb
);
3638 error
= dsl_dataset_rollback(fsname
, zsb
, outnvl
);
3639 resume_err
= zfs_resume_fs(zsb
, fsname
);
3640 error
= error
? error
: resume_err
;
3642 deactivate_super(zsb
->z_sb
);
3644 error
= dsl_dataset_rollback(fsname
, NULL
, outnvl
);
3650 recursive_unmount(const char *fsname
, void *arg
)
3652 const char *snapname
= arg
;
3656 fullname
= kmem_asprintf("%s@%s", fsname
, snapname
);
3657 error
= zfs_unmount_snap(fullname
);
3665 * zc_name old name of dataset
3666 * zc_value new name of dataset
3667 * zc_cookie recursive flag (only valid for snapshots)
3672 zfs_ioc_rename(zfs_cmd_t
*zc
)
3674 boolean_t recursive
= zc
->zc_cookie
& 1;
3677 zc
->zc_value
[sizeof (zc
->zc_value
) - 1] = '\0';
3678 if (dataset_namecheck(zc
->zc_value
, NULL
, NULL
) != 0 ||
3679 strchr(zc
->zc_value
, '%'))
3680 return (SET_ERROR(EINVAL
));
3682 at
= strchr(zc
->zc_name
, '@');
3684 /* snaps must be in same fs */
3687 if (strncmp(zc
->zc_name
, zc
->zc_value
, at
- zc
->zc_name
+ 1))
3688 return (SET_ERROR(EXDEV
));
3690 if (zc
->zc_objset_type
== DMU_OST_ZFS
) {
3691 error
= dmu_objset_find(zc
->zc_name
,
3692 recursive_unmount
, at
+ 1,
3693 recursive
? DS_FIND_CHILDREN
: 0);
3699 error
= dsl_dataset_rename_snapshot(zc
->zc_name
,
3700 at
+ 1, strchr(zc
->zc_value
, '@') + 1, recursive
);
3705 return (dsl_dir_rename(zc
->zc_name
, zc
->zc_value
));
3710 zfs_check_settable(const char *dsname
, nvpair_t
*pair
, cred_t
*cr
)
3712 const char *propname
= nvpair_name(pair
);
3713 boolean_t issnap
= (strchr(dsname
, '@') != NULL
);
3714 zfs_prop_t prop
= zfs_name_to_prop(propname
);
3718 if (prop
== ZPROP_INVAL
) {
3719 if (zfs_prop_user(propname
)) {
3720 if ((err
= zfs_secpolicy_write_perms(dsname
,
3721 ZFS_DELEG_PERM_USERPROP
, cr
)))
3726 if (!issnap
&& zfs_prop_userquota(propname
)) {
3727 const char *perm
= NULL
;
3728 const char *uq_prefix
=
3729 zfs_userquota_prop_prefixes
[ZFS_PROP_USERQUOTA
];
3730 const char *gq_prefix
=
3731 zfs_userquota_prop_prefixes
[ZFS_PROP_GROUPQUOTA
];
3733 if (strncmp(propname
, uq_prefix
,
3734 strlen(uq_prefix
)) == 0) {
3735 perm
= ZFS_DELEG_PERM_USERQUOTA
;
3736 } else if (strncmp(propname
, gq_prefix
,
3737 strlen(gq_prefix
)) == 0) {
3738 perm
= ZFS_DELEG_PERM_GROUPQUOTA
;
3740 /* USERUSED and GROUPUSED are read-only */
3741 return (SET_ERROR(EINVAL
));
3744 if ((err
= zfs_secpolicy_write_perms(dsname
, perm
, cr
)))
3749 return (SET_ERROR(EINVAL
));
3753 return (SET_ERROR(EINVAL
));
3755 if (nvpair_type(pair
) == DATA_TYPE_NVLIST
) {
3757 * dsl_prop_get_all_impl() returns properties in this
3761 VERIFY(nvpair_value_nvlist(pair
, &attrs
) == 0);
3762 VERIFY(nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
3767 * Check that this value is valid for this pool version
3770 case ZFS_PROP_COMPRESSION
:
3772 * If the user specified gzip compression, make sure
3773 * the SPA supports it. We ignore any errors here since
3774 * we'll catch them later.
3776 if (nvpair_type(pair
) == DATA_TYPE_UINT64
&&
3777 nvpair_value_uint64(pair
, &intval
) == 0) {
3778 if (intval
>= ZIO_COMPRESS_GZIP_1
&&
3779 intval
<= ZIO_COMPRESS_GZIP_9
&&
3780 zfs_earlier_version(dsname
,
3781 SPA_VERSION_GZIP_COMPRESSION
)) {
3782 return (SET_ERROR(ENOTSUP
));
3785 if (intval
== ZIO_COMPRESS_ZLE
&&
3786 zfs_earlier_version(dsname
,
3787 SPA_VERSION_ZLE_COMPRESSION
))
3788 return (SET_ERROR(ENOTSUP
));
3790 if (intval
== ZIO_COMPRESS_LZ4
) {
3793 if ((err
= spa_open(dsname
, &spa
, FTAG
)) != 0)
3796 if (!spa_feature_is_enabled(spa
,
3797 SPA_FEATURE_LZ4_COMPRESS
)) {
3798 spa_close(spa
, FTAG
);
3799 return (SET_ERROR(ENOTSUP
));
3801 spa_close(spa
, FTAG
);
3805 * If this is a bootable dataset then
3806 * verify that the compression algorithm
3807 * is supported for booting. We must return
3808 * something other than ENOTSUP since it
3809 * implies a downrev pool version.
3811 if (zfs_is_bootfs(dsname
) &&
3812 !BOOTFS_COMPRESS_VALID(intval
)) {
3813 return (SET_ERROR(ERANGE
));
3818 case ZFS_PROP_COPIES
:
3819 if (zfs_earlier_version(dsname
, SPA_VERSION_DITTO_BLOCKS
))
3820 return (SET_ERROR(ENOTSUP
));
3823 case ZFS_PROP_DEDUP
:
3824 if (zfs_earlier_version(dsname
, SPA_VERSION_DEDUP
))
3825 return (SET_ERROR(ENOTSUP
));
3828 case ZFS_PROP_SHARESMB
:
3829 if (zpl_earlier_version(dsname
, ZPL_VERSION_FUID
))
3830 return (SET_ERROR(ENOTSUP
));
3833 case ZFS_PROP_ACLINHERIT
:
3834 if (nvpair_type(pair
) == DATA_TYPE_UINT64
&&
3835 nvpair_value_uint64(pair
, &intval
) == 0) {
3836 if (intval
== ZFS_ACL_PASSTHROUGH_X
&&
3837 zfs_earlier_version(dsname
,
3838 SPA_VERSION_PASSTHROUGH_X
))
3839 return (SET_ERROR(ENOTSUP
));
3846 return (zfs_secpolicy_setprop(dsname
, prop
, pair
, CRED()));
3850 * Removes properties from the given props list that fail permission checks
3851 * needed to clear them and to restore them in case of a receive error. For each
3852 * property, make sure we have both set and inherit permissions.
3854 * Returns the first error encountered if any permission checks fail. If the
3855 * caller provides a non-NULL errlist, it also gives the complete list of names
3856 * of all the properties that failed a permission check along with the
3857 * corresponding error numbers. The caller is responsible for freeing the
3860 * If every property checks out successfully, zero is returned and the list
3861 * pointed at by errlist is NULL.
3864 zfs_check_clearable(char *dataset
, nvlist_t
*props
, nvlist_t
**errlist
)
3867 nvpair_t
*pair
, *next_pair
;
3874 VERIFY(nvlist_alloc(&errors
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
3876 zc
= kmem_alloc(sizeof (zfs_cmd_t
), KM_SLEEP
);
3877 (void) strcpy(zc
->zc_name
, dataset
);
3878 pair
= nvlist_next_nvpair(props
, NULL
);
3879 while (pair
!= NULL
) {
3880 next_pair
= nvlist_next_nvpair(props
, pair
);
3882 (void) strcpy(zc
->zc_value
, nvpair_name(pair
));
3883 if ((err
= zfs_check_settable(dataset
, pair
, CRED())) != 0 ||
3884 (err
= zfs_secpolicy_inherit_prop(zc
, NULL
, CRED())) != 0) {
3885 VERIFY(nvlist_remove_nvpair(props
, pair
) == 0);
3886 VERIFY(nvlist_add_int32(errors
,
3887 zc
->zc_value
, err
) == 0);
3891 kmem_free(zc
, sizeof (zfs_cmd_t
));
3893 if ((pair
= nvlist_next_nvpair(errors
, NULL
)) == NULL
) {
3894 nvlist_free(errors
);
3897 VERIFY(nvpair_value_int32(pair
, &rv
) == 0);
3900 if (errlist
== NULL
)
3901 nvlist_free(errors
);
3909 propval_equals(nvpair_t
*p1
, nvpair_t
*p2
)
3911 if (nvpair_type(p1
) == DATA_TYPE_NVLIST
) {
3912 /* dsl_prop_get_all_impl() format */
3914 VERIFY(nvpair_value_nvlist(p1
, &attrs
) == 0);
3915 VERIFY(nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
3919 if (nvpair_type(p2
) == DATA_TYPE_NVLIST
) {
3921 VERIFY(nvpair_value_nvlist(p2
, &attrs
) == 0);
3922 VERIFY(nvlist_lookup_nvpair(attrs
, ZPROP_VALUE
,
3926 if (nvpair_type(p1
) != nvpair_type(p2
))
3929 if (nvpair_type(p1
) == DATA_TYPE_STRING
) {
3930 char *valstr1
, *valstr2
;
3932 VERIFY(nvpair_value_string(p1
, (char **)&valstr1
) == 0);
3933 VERIFY(nvpair_value_string(p2
, (char **)&valstr2
) == 0);
3934 return (strcmp(valstr1
, valstr2
) == 0);
3936 uint64_t intval1
, intval2
;
3938 VERIFY(nvpair_value_uint64(p1
, &intval1
) == 0);
3939 VERIFY(nvpair_value_uint64(p2
, &intval2
) == 0);
3940 return (intval1
== intval2
);
3945 * Remove properties from props if they are not going to change (as determined
3946 * by comparison with origprops). Remove them from origprops as well, since we
3947 * do not need to clear or restore properties that won't change.
3950 props_reduce(nvlist_t
*props
, nvlist_t
*origprops
)
3952 nvpair_t
*pair
, *next_pair
;
3954 if (origprops
== NULL
)
3955 return; /* all props need to be received */
3957 pair
= nvlist_next_nvpair(props
, NULL
);
3958 while (pair
!= NULL
) {
3959 const char *propname
= nvpair_name(pair
);
3962 next_pair
= nvlist_next_nvpair(props
, pair
);
3964 if ((nvlist_lookup_nvpair(origprops
, propname
,
3965 &match
) != 0) || !propval_equals(pair
, match
))
3966 goto next
; /* need to set received value */
3968 /* don't clear the existing received value */
3969 (void) nvlist_remove_nvpair(origprops
, match
);
3970 /* don't bother receiving the property */
3971 (void) nvlist_remove_nvpair(props
, pair
);
3978 static boolean_t zfs_ioc_recv_inject_err
;
3983 * zc_name name of containing filesystem
3984 * zc_nvlist_src{_size} nvlist of properties to apply
3985 * zc_value name of snapshot to create
3986 * zc_string name of clone origin (if DRR_FLAG_CLONE)
3987 * zc_cookie file descriptor to recv from
3988 * zc_begin_record the BEGIN record of the stream (not byteswapped)
3989 * zc_guid force flag
3990 * zc_cleanup_fd cleanup-on-exit file descriptor
3991 * zc_action_handle handle for this guid/ds mapping (or zero on first call)
3994 * zc_cookie number of bytes read
3995 * zc_nvlist_dst{_size} error for each unapplied received property
3996 * zc_obj zprop_errflags_t
3997 * zc_action_handle handle for this guid/ds mapping
4000 zfs_ioc_recv(zfs_cmd_t
*zc
)
4003 dmu_recv_cookie_t drc
;
4004 boolean_t force
= (boolean_t
)zc
->zc_guid
;
4007 int props_error
= 0;
4010 nvlist_t
*props
= NULL
; /* sent properties */
4011 nvlist_t
*origprops
= NULL
; /* existing properties */
4012 char *origin
= NULL
;
4014 char tofs
[ZFS_MAXNAMELEN
];
4015 boolean_t first_recvd_props
= B_FALSE
;
4017 if (dataset_namecheck(zc
->zc_value
, NULL
, NULL
) != 0 ||
4018 strchr(zc
->zc_value
, '@') == NULL
||
4019 strchr(zc
->zc_value
, '%'))
4020 return (SET_ERROR(EINVAL
));
4022 (void) strcpy(tofs
, zc
->zc_value
);
4023 tosnap
= strchr(tofs
, '@');
4026 if (zc
->zc_nvlist_src
!= 0 &&
4027 (error
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
4028 zc
->zc_iflags
, &props
)) != 0)
4035 return (SET_ERROR(EBADF
));
4038 VERIFY(nvlist_alloc(&errors
, NV_UNIQUE_NAME
, KM_SLEEP
) == 0);
4040 if (zc
->zc_string
[0])
4041 origin
= zc
->zc_string
;
4043 error
= dmu_recv_begin(tofs
, tosnap
,
4044 &zc
->zc_begin_record
, force
, origin
, &drc
);
4049 * Set properties before we receive the stream so that they are applied
4050 * to the new data. Note that we must call dmu_recv_stream() if
4051 * dmu_recv_begin() succeeds.
4053 if (props
!= NULL
&& !drc
.drc_newfs
) {
4054 if (spa_version(dsl_dataset_get_spa(drc
.drc_ds
)) >=
4055 SPA_VERSION_RECVD_PROPS
&&
4056 !dsl_prop_get_hasrecvd(tofs
))
4057 first_recvd_props
= B_TRUE
;
4060 * If new received properties are supplied, they are to
4061 * completely replace the existing received properties, so stash
4062 * away the existing ones.
4064 if (dsl_prop_get_received(tofs
, &origprops
) == 0) {
4065 nvlist_t
*errlist
= NULL
;
4067 * Don't bother writing a property if its value won't
4068 * change (and avoid the unnecessary security checks).
4070 * The first receive after SPA_VERSION_RECVD_PROPS is a
4071 * special case where we blow away all local properties
4074 if (!first_recvd_props
)
4075 props_reduce(props
, origprops
);
4076 if (zfs_check_clearable(tofs
, origprops
, &errlist
) != 0)
4077 (void) nvlist_merge(errors
, errlist
, 0);
4078 nvlist_free(errlist
);
4080 if (clear_received_props(tofs
, origprops
,
4081 first_recvd_props
? NULL
: props
) != 0)
4082 zc
->zc_obj
|= ZPROP_ERR_NOCLEAR
;
4084 zc
->zc_obj
|= ZPROP_ERR_NOCLEAR
;
4088 if (props
!= NULL
) {
4089 props_error
= dsl_prop_set_hasrecvd(tofs
);
4091 if (props_error
== 0) {
4092 (void) zfs_set_prop_nvlist(tofs
, ZPROP_SRC_RECEIVED
,
4097 if (zc
->zc_nvlist_dst_size
!= 0 &&
4098 (nvlist_smush(errors
, zc
->zc_nvlist_dst_size
) != 0 ||
4099 put_nvlist(zc
, errors
) != 0)) {
4101 * Caller made zc->zc_nvlist_dst less than the minimum expected
4102 * size or supplied an invalid address.
4104 props_error
= SET_ERROR(EINVAL
);
4108 error
= dmu_recv_stream(&drc
, fp
->f_vnode
, &off
, zc
->zc_cleanup_fd
,
4109 &zc
->zc_action_handle
);
4112 zfs_sb_t
*zsb
= NULL
;
4114 if (get_zfs_sb(tofs
, &zsb
) == 0) {
4118 error
= zfs_suspend_fs(zsb
);
4120 * If the suspend fails, then the recv_end will
4121 * likely also fail, and clean up after itself.
4123 end_err
= dmu_recv_end(&drc
, zsb
);
4125 error
= zfs_resume_fs(zsb
, tofs
);
4126 error
= error
? error
: end_err
;
4127 deactivate_super(zsb
->z_sb
);
4129 error
= dmu_recv_end(&drc
, NULL
);
4133 zc
->zc_cookie
= off
- fp
->f_offset
;
4134 if (VOP_SEEK(fp
->f_vnode
, fp
->f_offset
, &off
, NULL
) == 0)
4138 if (zfs_ioc_recv_inject_err
) {
4139 zfs_ioc_recv_inject_err
= B_FALSE
;
4146 zvol_create_minors(tofs
);
4150 * On error, restore the original props.
4152 if (error
!= 0 && props
!= NULL
&& !drc
.drc_newfs
) {
4153 if (clear_received_props(tofs
, props
, NULL
) != 0) {
4155 * We failed to clear the received properties.
4156 * Since we may have left a $recvd value on the
4157 * system, we can't clear the $hasrecvd flag.
4159 zc
->zc_obj
|= ZPROP_ERR_NORESTORE
;
4160 } else if (first_recvd_props
) {
4161 dsl_prop_unset_hasrecvd(tofs
);
4164 if (origprops
== NULL
&& !drc
.drc_newfs
) {
4165 /* We failed to stash the original properties. */
4166 zc
->zc_obj
|= ZPROP_ERR_NORESTORE
;
4170 * dsl_props_set() will not convert RECEIVED to LOCAL on or
4171 * after SPA_VERSION_RECVD_PROPS, so we need to specify LOCAL
4172 * explictly if we're restoring local properties cleared in the
4173 * first new-style receive.
4175 if (origprops
!= NULL
&&
4176 zfs_set_prop_nvlist(tofs
, (first_recvd_props
?
4177 ZPROP_SRC_LOCAL
: ZPROP_SRC_RECEIVED
),
4178 origprops
, NULL
) != 0) {
4180 * We stashed the original properties but failed to
4183 zc
->zc_obj
|= ZPROP_ERR_NORESTORE
;
4188 nvlist_free(origprops
);
4189 nvlist_free(errors
);
4193 error
= props_error
;
4200 * zc_name name of snapshot to send
4201 * zc_cookie file descriptor to send stream to
4202 * zc_obj fromorigin flag (mutually exclusive with zc_fromobj)
4203 * zc_sendobj objsetid of snapshot to send
4204 * zc_fromobj objsetid of incremental fromsnap (may be zero)
4205 * zc_guid if set, estimate size of stream only. zc_cookie is ignored.
4206 * output size in zc_objset_type.
4207 * zc_flags if =1, WRITE_EMBEDDED records are permitted
4210 * zc_objset_type estimated size, if zc_guid is set
4213 zfs_ioc_send(zfs_cmd_t
*zc
)
4217 boolean_t estimate
= (zc
->zc_guid
!= 0);
4218 boolean_t embedok
= (zc
->zc_flags
& 0x1);
4220 if (zc
->zc_obj
!= 0) {
4222 dsl_dataset_t
*tosnap
;
4224 error
= dsl_pool_hold(zc
->zc_name
, FTAG
, &dp
);
4228 error
= dsl_dataset_hold_obj(dp
, zc
->zc_sendobj
, FTAG
, &tosnap
);
4230 dsl_pool_rele(dp
, FTAG
);
4234 if (dsl_dir_is_clone(tosnap
->ds_dir
))
4235 zc
->zc_fromobj
= tosnap
->ds_dir
->dd_phys
->dd_origin_obj
;
4236 dsl_dataset_rele(tosnap
, FTAG
);
4237 dsl_pool_rele(dp
, FTAG
);
4242 dsl_dataset_t
*tosnap
;
4243 dsl_dataset_t
*fromsnap
= NULL
;
4245 error
= dsl_pool_hold(zc
->zc_name
, FTAG
, &dp
);
4249 error
= dsl_dataset_hold_obj(dp
, zc
->zc_sendobj
, FTAG
, &tosnap
);
4251 dsl_pool_rele(dp
, FTAG
);
4255 if (zc
->zc_fromobj
!= 0) {
4256 error
= dsl_dataset_hold_obj(dp
, zc
->zc_fromobj
,
4259 dsl_dataset_rele(tosnap
, FTAG
);
4260 dsl_pool_rele(dp
, FTAG
);
4265 error
= dmu_send_estimate(tosnap
, fromsnap
,
4266 &zc
->zc_objset_type
);
4268 if (fromsnap
!= NULL
)
4269 dsl_dataset_rele(fromsnap
, FTAG
);
4270 dsl_dataset_rele(tosnap
, FTAG
);
4271 dsl_pool_rele(dp
, FTAG
);
4273 file_t
*fp
= getf(zc
->zc_cookie
);
4275 return (SET_ERROR(EBADF
));
4278 error
= dmu_send_obj(zc
->zc_name
, zc
->zc_sendobj
,
4279 zc
->zc_fromobj
, embedok
, zc
->zc_cookie
, fp
->f_vnode
, &off
);
4281 if (VOP_SEEK(fp
->f_vnode
, fp
->f_offset
, &off
, NULL
) == 0)
4283 releasef(zc
->zc_cookie
);
4290 * zc_name name of snapshot on which to report progress
4291 * zc_cookie file descriptor of send stream
4294 * zc_cookie number of bytes written in send stream thus far
4297 zfs_ioc_send_progress(zfs_cmd_t
*zc
)
4301 dmu_sendarg_t
*dsp
= NULL
;
4304 error
= dsl_pool_hold(zc
->zc_name
, FTAG
, &dp
);
4308 error
= dsl_dataset_hold(dp
, zc
->zc_name
, FTAG
, &ds
);
4310 dsl_pool_rele(dp
, FTAG
);
4314 mutex_enter(&ds
->ds_sendstream_lock
);
4317 * Iterate over all the send streams currently active on this dataset.
4318 * If there's one which matches the specified file descriptor _and_ the
4319 * stream was started by the current process, return the progress of
4323 for (dsp
= list_head(&ds
->ds_sendstreams
); dsp
!= NULL
;
4324 dsp
= list_next(&ds
->ds_sendstreams
, dsp
)) {
4325 if (dsp
->dsa_outfd
== zc
->zc_cookie
&&
4326 dsp
->dsa_proc
->group_leader
== curproc
->group_leader
)
4331 zc
->zc_cookie
= *(dsp
->dsa_off
);
4333 error
= SET_ERROR(ENOENT
);
4335 mutex_exit(&ds
->ds_sendstream_lock
);
4336 dsl_dataset_rele(ds
, FTAG
);
4337 dsl_pool_rele(dp
, FTAG
);
4342 zfs_ioc_inject_fault(zfs_cmd_t
*zc
)
4346 error
= zio_inject_fault(zc
->zc_name
, (int)zc
->zc_guid
, &id
,
4347 &zc
->zc_inject_record
);
4350 zc
->zc_guid
= (uint64_t)id
;
4356 zfs_ioc_clear_fault(zfs_cmd_t
*zc
)
4358 return (zio_clear_fault((int)zc
->zc_guid
));
4362 zfs_ioc_inject_list_next(zfs_cmd_t
*zc
)
4364 int id
= (int)zc
->zc_guid
;
4367 error
= zio_inject_list_next(&id
, zc
->zc_name
, sizeof (zc
->zc_name
),
4368 &zc
->zc_inject_record
);
4376 zfs_ioc_error_log(zfs_cmd_t
*zc
)
4380 size_t count
= (size_t)zc
->zc_nvlist_dst_size
;
4382 if ((error
= spa_open(zc
->zc_name
, &spa
, FTAG
)) != 0)
4385 error
= spa_get_errlog(spa
, (void *)(uintptr_t)zc
->zc_nvlist_dst
,
4388 zc
->zc_nvlist_dst_size
= count
;
4390 zc
->zc_nvlist_dst_size
= spa_get_errlog_size(spa
);
4392 spa_close(spa
, FTAG
);
4398 zfs_ioc_clear(zfs_cmd_t
*zc
)
4405 * On zpool clear we also fix up missing slogs
4407 mutex_enter(&spa_namespace_lock
);
4408 spa
= spa_lookup(zc
->zc_name
);
4410 mutex_exit(&spa_namespace_lock
);
4411 return (SET_ERROR(EIO
));
4413 if (spa_get_log_state(spa
) == SPA_LOG_MISSING
) {
4414 /* we need to let spa_open/spa_load clear the chains */
4415 spa_set_log_state(spa
, SPA_LOG_CLEAR
);
4417 spa
->spa_last_open_failed
= 0;
4418 mutex_exit(&spa_namespace_lock
);
4420 if (zc
->zc_cookie
& ZPOOL_NO_REWIND
) {
4421 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
4424 nvlist_t
*config
= NULL
;
4426 if (zc
->zc_nvlist_src
== 0)
4427 return (SET_ERROR(EINVAL
));
4429 if ((error
= get_nvlist(zc
->zc_nvlist_src
,
4430 zc
->zc_nvlist_src_size
, zc
->zc_iflags
, &policy
)) == 0) {
4431 error
= spa_open_rewind(zc
->zc_name
, &spa
, FTAG
,
4433 if (config
!= NULL
) {
4436 if ((err
= put_nvlist(zc
, config
)) != 0)
4438 nvlist_free(config
);
4440 nvlist_free(policy
);
4447 spa_vdev_state_enter(spa
, SCL_NONE
);
4449 if (zc
->zc_guid
== 0) {
4452 vd
= spa_lookup_by_guid(spa
, zc
->zc_guid
, B_TRUE
);
4454 (void) spa_vdev_state_exit(spa
, NULL
, ENODEV
);
4455 spa_close(spa
, FTAG
);
4456 return (SET_ERROR(ENODEV
));
4460 vdev_clear(spa
, vd
);
4462 (void) spa_vdev_state_exit(spa
, NULL
, 0);
4465 * Resume any suspended I/Os.
4467 if (zio_resume(spa
) != 0)
4468 error
= SET_ERROR(EIO
);
4470 spa_close(spa
, FTAG
);
4476 zfs_ioc_pool_reopen(zfs_cmd_t
*zc
)
4481 error
= spa_open(zc
->zc_name
, &spa
, FTAG
);
4485 spa_vdev_state_enter(spa
, SCL_NONE
);
4488 * If a resilver is already in progress then set the
4489 * spa_scrub_reopen flag to B_TRUE so that we don't restart
4490 * the scan as a side effect of the reopen. Otherwise, let
4491 * vdev_open() decided if a resilver is required.
4493 spa
->spa_scrub_reopen
= dsl_scan_resilvering(spa
->spa_dsl_pool
);
4494 vdev_reopen(spa
->spa_root_vdev
);
4495 spa
->spa_scrub_reopen
= B_FALSE
;
4497 (void) spa_vdev_state_exit(spa
, NULL
, 0);
4498 spa_close(spa
, FTAG
);
4503 * zc_name name of filesystem
4504 * zc_value name of origin snapshot
4507 * zc_string name of conflicting snapshot, if there is one
4510 zfs_ioc_promote(zfs_cmd_t
*zc
)
4515 * We don't need to unmount *all* the origin fs's snapshots, but
4518 cp
= strchr(zc
->zc_value
, '@');
4521 (void) dmu_objset_find(zc
->zc_value
,
4522 zfs_unmount_snap_cb
, NULL
, DS_FIND_SNAPSHOTS
);
4523 return (dsl_dataset_promote(zc
->zc_name
, zc
->zc_string
));
4527 * Retrieve a single {user|group}{used|quota}@... property.
4530 * zc_name name of filesystem
4531 * zc_objset_type zfs_userquota_prop_t
4532 * zc_value domain name (eg. "S-1-234-567-89")
4533 * zc_guid RID/UID/GID
4536 * zc_cookie property value
4539 zfs_ioc_userspace_one(zfs_cmd_t
*zc
)
4544 if (zc
->zc_objset_type
>= ZFS_NUM_USERQUOTA_PROPS
)
4545 return (SET_ERROR(EINVAL
));
4547 error
= zfs_sb_hold(zc
->zc_name
, FTAG
, &zsb
, B_FALSE
);
4551 error
= zfs_userspace_one(zsb
,
4552 zc
->zc_objset_type
, zc
->zc_value
, zc
->zc_guid
, &zc
->zc_cookie
);
4553 zfs_sb_rele(zsb
, FTAG
);
4560 * zc_name name of filesystem
4561 * zc_cookie zap cursor
4562 * zc_objset_type zfs_userquota_prop_t
4563 * zc_nvlist_dst[_size] buffer to fill (not really an nvlist)
4566 * zc_nvlist_dst[_size] data buffer (array of zfs_useracct_t)
4567 * zc_cookie zap cursor
4570 zfs_ioc_userspace_many(zfs_cmd_t
*zc
)
4573 int bufsize
= zc
->zc_nvlist_dst_size
;
4578 return (SET_ERROR(ENOMEM
));
4580 error
= zfs_sb_hold(zc
->zc_name
, FTAG
, &zsb
, B_FALSE
);
4584 buf
= vmem_alloc(bufsize
, KM_SLEEP
);
4586 error
= zfs_userspace_many(zsb
, zc
->zc_objset_type
, &zc
->zc_cookie
,
4587 buf
, &zc
->zc_nvlist_dst_size
);
4590 error
= xcopyout(buf
,
4591 (void *)(uintptr_t)zc
->zc_nvlist_dst
,
4592 zc
->zc_nvlist_dst_size
);
4594 vmem_free(buf
, bufsize
);
4595 zfs_sb_rele(zsb
, FTAG
);
4602 * zc_name name of filesystem
4608 zfs_ioc_userspace_upgrade(zfs_cmd_t
*zc
)
4614 if (get_zfs_sb(zc
->zc_name
, &zsb
) == 0) {
4615 if (!dmu_objset_userused_enabled(zsb
->z_os
)) {
4617 * If userused is not enabled, it may be because the
4618 * objset needs to be closed & reopened (to grow the
4619 * objset_phys_t). Suspend/resume the fs will do that.
4621 error
= zfs_suspend_fs(zsb
);
4623 dmu_objset_refresh_ownership(zsb
->z_os
,
4625 error
= zfs_resume_fs(zsb
, zc
->zc_name
);
4629 error
= dmu_objset_userspace_upgrade(zsb
->z_os
);
4630 deactivate_super(zsb
->z_sb
);
4632 /* XXX kind of reading contents without owning */
4633 error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
);
4637 error
= dmu_objset_userspace_upgrade(os
);
4638 dmu_objset_rele(os
, FTAG
);
4645 zfs_ioc_share(zfs_cmd_t
*zc
)
4647 return (SET_ERROR(ENOSYS
));
4650 ace_t full_access
[] = {
4651 {(uid_t
)-1, ACE_ALL_PERMS
, ACE_EVERYONE
, 0}
4656 * zc_name name of containing filesystem
4657 * zc_obj object # beyond which we want next in-use object #
4660 * zc_obj next in-use object #
4663 zfs_ioc_next_obj(zfs_cmd_t
*zc
)
4665 objset_t
*os
= NULL
;
4668 error
= dmu_objset_hold(zc
->zc_name
, FTAG
, &os
);
4672 error
= dmu_object_next(os
, &zc
->zc_obj
, B_FALSE
,
4673 os
->os_dsl_dataset
->ds_phys
->ds_prev_snap_txg
);
4675 dmu_objset_rele(os
, FTAG
);
4681 * zc_name name of filesystem
4682 * zc_value prefix name for snapshot
4683 * zc_cleanup_fd cleanup-on-exit file descriptor for calling process
4686 * zc_value short name of new snapshot
4689 zfs_ioc_tmp_snapshot(zfs_cmd_t
*zc
)
4696 error
= zfs_onexit_fd_hold(zc
->zc_cleanup_fd
, &minor
);
4700 snap_name
= kmem_asprintf("%s-%016llx", zc
->zc_value
,
4701 (u_longlong_t
)ddi_get_lbolt64());
4702 hold_name
= kmem_asprintf("%%%s", zc
->zc_value
);
4704 error
= dsl_dataset_snapshot_tmp(zc
->zc_name
, snap_name
, minor
,
4707 (void) strcpy(zc
->zc_value
, snap_name
);
4710 zfs_onexit_fd_rele(zc
->zc_cleanup_fd
);
4716 * zc_name name of "to" snapshot
4717 * zc_value name of "from" snapshot
4718 * zc_cookie file descriptor to write diff data on
4721 * dmu_diff_record_t's to the file descriptor
4724 zfs_ioc_diff(zfs_cmd_t
*zc
)
4730 fp
= getf(zc
->zc_cookie
);
4732 return (SET_ERROR(EBADF
));
4736 error
= dmu_diff(zc
->zc_name
, zc
->zc_value
, fp
->f_vnode
, &off
);
4738 if (VOP_SEEK(fp
->f_vnode
, fp
->f_offset
, &off
, NULL
) == 0)
4740 releasef(zc
->zc_cookie
);
4746 * Remove all ACL files in shares dir
4748 #ifdef HAVE_SMB_SHARE
4750 zfs_smb_acl_purge(znode_t
*dzp
)
4753 zap_attribute_t zap
;
4754 zfs_sb_t
*zsb
= ZTOZSB(dzp
);
4757 for (zap_cursor_init(&zc
, zsb
->z_os
, dzp
->z_id
);
4758 (error
= zap_cursor_retrieve(&zc
, &zap
)) == 0;
4759 zap_cursor_advance(&zc
)) {
4760 if ((error
= VOP_REMOVE(ZTOV(dzp
), zap
.za_name
, kcred
,
4764 zap_cursor_fini(&zc
);
4767 #endif /* HAVE_SMB_SHARE */
4770 zfs_ioc_smb_acl(zfs_cmd_t
*zc
)
4772 #ifdef HAVE_SMB_SHARE
4775 vnode_t
*resourcevp
= NULL
;
4784 if ((error
= lookupname(zc
->zc_value
, UIO_SYSSPACE
,
4785 NO_FOLLOW
, NULL
, &vp
)) != 0)
4788 /* Now make sure mntpnt and dataset are ZFS */
4790 if (vp
->v_vfsp
->vfs_fstype
!= zfsfstype
||
4791 (strcmp((char *)refstr_value(vp
->v_vfsp
->vfs_resource
),
4792 zc
->zc_name
) != 0)) {
4794 return (SET_ERROR(EINVAL
));
4802 * Create share dir if its missing.
4804 mutex_enter(&zsb
->z_lock
);
4805 if (zsb
->z_shares_dir
== 0) {
4808 tx
= dmu_tx_create(zsb
->z_os
);
4809 dmu_tx_hold_zap(tx
, MASTER_NODE_OBJ
, TRUE
,
4811 dmu_tx_hold_zap(tx
, DMU_NEW_OBJECT
, FALSE
, NULL
);
4812 error
= dmu_tx_assign(tx
, TXG_WAIT
);
4816 error
= zfs_create_share_dir(zsb
, tx
);
4820 mutex_exit(&zsb
->z_lock
);
4826 mutex_exit(&zsb
->z_lock
);
4828 ASSERT(zsb
->z_shares_dir
);
4829 if ((error
= zfs_zget(zsb
, zsb
->z_shares_dir
, &sharedir
)) != 0) {
4835 switch (zc
->zc_cookie
) {
4836 case ZFS_SMB_ACL_ADD
:
4837 vattr
.va_mask
= AT_MODE
|AT_UID
|AT_GID
|AT_TYPE
;
4838 vattr
.va_mode
= S_IFREG
|0777;
4842 vsec
.vsa_mask
= VSA_ACE
;
4843 vsec
.vsa_aclentp
= &full_access
;
4844 vsec
.vsa_aclentsz
= sizeof (full_access
);
4845 vsec
.vsa_aclcnt
= 1;
4847 error
= VOP_CREATE(ZTOV(sharedir
), zc
->zc_string
,
4848 &vattr
, EXCL
, 0, &resourcevp
, kcred
, 0, NULL
, &vsec
);
4850 VN_RELE(resourcevp
);
4853 case ZFS_SMB_ACL_REMOVE
:
4854 error
= VOP_REMOVE(ZTOV(sharedir
), zc
->zc_string
, kcred
,
4858 case ZFS_SMB_ACL_RENAME
:
4859 if ((error
= get_nvlist(zc
->zc_nvlist_src
,
4860 zc
->zc_nvlist_src_size
, zc
->zc_iflags
, &nvlist
)) != 0) {
4865 if (nvlist_lookup_string(nvlist
, ZFS_SMB_ACL_SRC
, &src
) ||
4866 nvlist_lookup_string(nvlist
, ZFS_SMB_ACL_TARGET
,
4869 VN_RELE(ZTOV(sharedir
));
4871 nvlist_free(nvlist
);
4874 error
= VOP_RENAME(ZTOV(sharedir
), src
, ZTOV(sharedir
), target
,
4876 nvlist_free(nvlist
);
4879 case ZFS_SMB_ACL_PURGE
:
4880 error
= zfs_smb_acl_purge(sharedir
);
4884 error
= SET_ERROR(EINVAL
);
4889 VN_RELE(ZTOV(sharedir
));
4895 return (SET_ERROR(ENOTSUP
));
4896 #endif /* HAVE_SMB_SHARE */
4901 * "holds" -> { snapname -> holdname (string), ... }
4902 * (optional) "cleanup_fd" -> fd (int32)
4906 * snapname -> error value (int32)
4912 zfs_ioc_hold(const char *pool
, nvlist_t
*args
, nvlist_t
*errlist
)
4915 int cleanup_fd
= -1;
4919 error
= nvlist_lookup_nvlist(args
, "holds", &holds
);
4921 return (SET_ERROR(EINVAL
));
4923 if (nvlist_lookup_int32(args
, "cleanup_fd", &cleanup_fd
) == 0) {
4924 error
= zfs_onexit_fd_hold(cleanup_fd
, &minor
);
4929 error
= dsl_dataset_user_hold(holds
, minor
, errlist
);
4931 zfs_onexit_fd_rele(cleanup_fd
);
4936 * innvl is not used.
4939 * holdname -> time added (uint64 seconds since epoch)
4945 zfs_ioc_get_holds(const char *snapname
, nvlist_t
*args
, nvlist_t
*outnvl
)
4947 return (dsl_dataset_get_holds(snapname
, outnvl
));
4952 * snapname -> { holdname, ... }
4957 * snapname -> error value (int32)
4963 zfs_ioc_release(const char *pool
, nvlist_t
*holds
, nvlist_t
*errlist
)
4965 return (dsl_dataset_user_release(holds
, errlist
));
4970 * zc_guid flags (ZEVENT_NONBLOCK)
4971 * zc_cleanup_fd zevent file descriptor
4974 * zc_nvlist_dst next nvlist event
4975 * zc_cookie dropped events since last get
4978 zfs_ioc_events_next(zfs_cmd_t
*zc
)
4981 nvlist_t
*event
= NULL
;
4983 uint64_t dropped
= 0;
4986 error
= zfs_zevent_fd_hold(zc
->zc_cleanup_fd
, &minor
, &ze
);
4991 error
= zfs_zevent_next(ze
, &event
,
4992 &zc
->zc_nvlist_dst_size
, &dropped
);
4993 if (event
!= NULL
) {
4994 zc
->zc_cookie
= dropped
;
4995 error
= put_nvlist(zc
, event
);
4999 if (zc
->zc_guid
& ZEVENT_NONBLOCK
)
5002 if ((error
== 0) || (error
!= ENOENT
))
5005 error
= zfs_zevent_wait(ze
);
5010 zfs_zevent_fd_rele(zc
->zc_cleanup_fd
);
5017 * zc_cookie cleared events count
5020 zfs_ioc_events_clear(zfs_cmd_t
*zc
)
5024 zfs_zevent_drain_all(&count
);
5025 zc
->zc_cookie
= count
;
5032 * zc_guid eid | ZEVENT_SEEK_START | ZEVENT_SEEK_END
5033 * zc_cleanup zevent file descriptor
5036 zfs_ioc_events_seek(zfs_cmd_t
*zc
)
5042 error
= zfs_zevent_fd_hold(zc
->zc_cleanup_fd
, &minor
, &ze
);
5046 error
= zfs_zevent_seek(ze
, zc
->zc_guid
);
5047 zfs_zevent_fd_rele(zc
->zc_cleanup_fd
);
5054 * zc_name name of new filesystem or snapshot
5055 * zc_value full name of old snapshot
5058 * zc_cookie space in bytes
5059 * zc_objset_type compressed space in bytes
5060 * zc_perm_action uncompressed space in bytes
5063 zfs_ioc_space_written(zfs_cmd_t
*zc
)
5067 dsl_dataset_t
*new, *old
;
5069 error
= dsl_pool_hold(zc
->zc_name
, FTAG
, &dp
);
5072 error
= dsl_dataset_hold(dp
, zc
->zc_name
, FTAG
, &new);
5074 dsl_pool_rele(dp
, FTAG
);
5077 error
= dsl_dataset_hold(dp
, zc
->zc_value
, FTAG
, &old
);
5079 dsl_dataset_rele(new, FTAG
);
5080 dsl_pool_rele(dp
, FTAG
);
5084 error
= dsl_dataset_space_written(old
, new, &zc
->zc_cookie
,
5085 &zc
->zc_objset_type
, &zc
->zc_perm_action
);
5086 dsl_dataset_rele(old
, FTAG
);
5087 dsl_dataset_rele(new, FTAG
);
5088 dsl_pool_rele(dp
, FTAG
);
5094 * "firstsnap" -> snapshot name
5098 * "used" -> space in bytes
5099 * "compressed" -> compressed space in bytes
5100 * "uncompressed" -> uncompressed space in bytes
5104 zfs_ioc_space_snaps(const char *lastsnap
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
5108 dsl_dataset_t
*new, *old
;
5110 uint64_t used
, comp
, uncomp
;
5112 if (nvlist_lookup_string(innvl
, "firstsnap", &firstsnap
) != 0)
5113 return (SET_ERROR(EINVAL
));
5115 error
= dsl_pool_hold(lastsnap
, FTAG
, &dp
);
5119 error
= dsl_dataset_hold(dp
, lastsnap
, FTAG
, &new);
5121 dsl_pool_rele(dp
, FTAG
);
5124 error
= dsl_dataset_hold(dp
, firstsnap
, FTAG
, &old
);
5126 dsl_dataset_rele(new, FTAG
);
5127 dsl_pool_rele(dp
, FTAG
);
5131 error
= dsl_dataset_space_wouldfree(old
, new, &used
, &comp
, &uncomp
);
5132 dsl_dataset_rele(old
, FTAG
);
5133 dsl_dataset_rele(new, FTAG
);
5134 dsl_pool_rele(dp
, FTAG
);
5135 fnvlist_add_uint64(outnvl
, "used", used
);
5136 fnvlist_add_uint64(outnvl
, "compressed", comp
);
5137 fnvlist_add_uint64(outnvl
, "uncompressed", uncomp
);
5143 * "fd" -> file descriptor to write stream to (int32)
5144 * (optional) "fromsnap" -> full snap name to send an incremental from
5145 * (optional) "embedok" -> (value ignored)
5146 * presence indicates DRR_WRITE_EMBEDDED records are permitted
5153 zfs_ioc_send_new(const char *snapname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
5157 char *fromname
= NULL
;
5162 error
= nvlist_lookup_int32(innvl
, "fd", &fd
);
5164 return (SET_ERROR(EINVAL
));
5166 (void) nvlist_lookup_string(innvl
, "fromsnap", &fromname
);
5168 embedok
= nvlist_exists(innvl
, "embedok");
5170 if ((fp
= getf(fd
)) == NULL
)
5171 return (SET_ERROR(EBADF
));
5174 error
= dmu_send(snapname
, fromname
, embedok
, fd
, fp
->f_vnode
, &off
);
5176 if (VOP_SEEK(fp
->f_vnode
, fp
->f_offset
, &off
, NULL
) == 0)
5184 * Determine approximately how large a zfs send stream will be -- the number
5185 * of bytes that will be written to the fd supplied to zfs_ioc_send_new().
5188 * (optional) "fromsnap" -> full snap name to send an incremental from
5192 * "space" -> bytes of space (uint64)
5196 zfs_ioc_send_space(const char *snapname
, nvlist_t
*innvl
, nvlist_t
*outnvl
)
5199 dsl_dataset_t
*fromsnap
= NULL
;
5200 dsl_dataset_t
*tosnap
;
5205 error
= dsl_pool_hold(snapname
, FTAG
, &dp
);
5209 error
= dsl_dataset_hold(dp
, snapname
, FTAG
, &tosnap
);
5211 dsl_pool_rele(dp
, FTAG
);
5215 error
= nvlist_lookup_string(innvl
, "fromsnap", &fromname
);
5217 error
= dsl_dataset_hold(dp
, fromname
, FTAG
, &fromsnap
);
5219 dsl_dataset_rele(tosnap
, FTAG
);
5220 dsl_pool_rele(dp
, FTAG
);
5225 error
= dmu_send_estimate(tosnap
, fromsnap
, &space
);
5226 fnvlist_add_uint64(outnvl
, "space", space
);
5228 if (fromsnap
!= NULL
)
5229 dsl_dataset_rele(fromsnap
, FTAG
);
5230 dsl_dataset_rele(tosnap
, FTAG
);
5231 dsl_pool_rele(dp
, FTAG
);
5236 static zfs_ioc_vec_t zfs_ioc_vec
[ZFS_IOC_LAST
- ZFS_IOC_FIRST
];
5239 zfs_ioctl_register_legacy(zfs_ioc_t ioc
, zfs_ioc_legacy_func_t
*func
,
5240 zfs_secpolicy_func_t
*secpolicy
, zfs_ioc_namecheck_t namecheck
,
5241 boolean_t log_history
, zfs_ioc_poolcheck_t pool_check
)
5243 zfs_ioc_vec_t
*vec
= &zfs_ioc_vec
[ioc
- ZFS_IOC_FIRST
];
5245 ASSERT3U(ioc
, >=, ZFS_IOC_FIRST
);
5246 ASSERT3U(ioc
, <, ZFS_IOC_LAST
);
5247 ASSERT3P(vec
->zvec_legacy_func
, ==, NULL
);
5248 ASSERT3P(vec
->zvec_func
, ==, NULL
);
5250 vec
->zvec_legacy_func
= func
;
5251 vec
->zvec_secpolicy
= secpolicy
;
5252 vec
->zvec_namecheck
= namecheck
;
5253 vec
->zvec_allow_log
= log_history
;
5254 vec
->zvec_pool_check
= pool_check
;
5258 * See the block comment at the beginning of this file for details on
5259 * each argument to this function.
5262 zfs_ioctl_register(const char *name
, zfs_ioc_t ioc
, zfs_ioc_func_t
*func
,
5263 zfs_secpolicy_func_t
*secpolicy
, zfs_ioc_namecheck_t namecheck
,
5264 zfs_ioc_poolcheck_t pool_check
, boolean_t smush_outnvlist
,
5265 boolean_t allow_log
)
5267 zfs_ioc_vec_t
*vec
= &zfs_ioc_vec
[ioc
- ZFS_IOC_FIRST
];
5269 ASSERT3U(ioc
, >=, ZFS_IOC_FIRST
);
5270 ASSERT3U(ioc
, <, ZFS_IOC_LAST
);
5271 ASSERT3P(vec
->zvec_legacy_func
, ==, NULL
);
5272 ASSERT3P(vec
->zvec_func
, ==, NULL
);
5274 /* if we are logging, the name must be valid */
5275 ASSERT(!allow_log
|| namecheck
!= NO_NAME
);
5277 vec
->zvec_name
= name
;
5278 vec
->zvec_func
= func
;
5279 vec
->zvec_secpolicy
= secpolicy
;
5280 vec
->zvec_namecheck
= namecheck
;
5281 vec
->zvec_pool_check
= pool_check
;
5282 vec
->zvec_smush_outnvlist
= smush_outnvlist
;
5283 vec
->zvec_allow_log
= allow_log
;
5287 zfs_ioctl_register_pool(zfs_ioc_t ioc
, zfs_ioc_legacy_func_t
*func
,
5288 zfs_secpolicy_func_t
*secpolicy
, boolean_t log_history
,
5289 zfs_ioc_poolcheck_t pool_check
)
5291 zfs_ioctl_register_legacy(ioc
, func
, secpolicy
,
5292 POOL_NAME
, log_history
, pool_check
);
5296 zfs_ioctl_register_dataset_nolog(zfs_ioc_t ioc
, zfs_ioc_legacy_func_t
*func
,
5297 zfs_secpolicy_func_t
*secpolicy
, zfs_ioc_poolcheck_t pool_check
)
5299 zfs_ioctl_register_legacy(ioc
, func
, secpolicy
,
5300 DATASET_NAME
, B_FALSE
, pool_check
);
5304 zfs_ioctl_register_pool_modify(zfs_ioc_t ioc
, zfs_ioc_legacy_func_t
*func
)
5306 zfs_ioctl_register_legacy(ioc
, func
, zfs_secpolicy_config
,
5307 POOL_NAME
, B_TRUE
, POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
);
5311 zfs_ioctl_register_pool_meta(zfs_ioc_t ioc
, zfs_ioc_legacy_func_t
*func
,
5312 zfs_secpolicy_func_t
*secpolicy
)
5314 zfs_ioctl_register_legacy(ioc
, func
, secpolicy
,
5315 NO_NAME
, B_FALSE
, POOL_CHECK_NONE
);
5319 zfs_ioctl_register_dataset_read_secpolicy(zfs_ioc_t ioc
,
5320 zfs_ioc_legacy_func_t
*func
, zfs_secpolicy_func_t
*secpolicy
)
5322 zfs_ioctl_register_legacy(ioc
, func
, secpolicy
,
5323 DATASET_NAME
, B_FALSE
, POOL_CHECK_SUSPENDED
);
5327 zfs_ioctl_register_dataset_read(zfs_ioc_t ioc
, zfs_ioc_legacy_func_t
*func
)
5329 zfs_ioctl_register_dataset_read_secpolicy(ioc
, func
,
5330 zfs_secpolicy_read
);
5334 zfs_ioctl_register_dataset_modify(zfs_ioc_t ioc
, zfs_ioc_legacy_func_t
*func
,
5335 zfs_secpolicy_func_t
*secpolicy
)
5337 zfs_ioctl_register_legacy(ioc
, func
, secpolicy
,
5338 DATASET_NAME
, B_TRUE
, POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
);
5342 zfs_ioctl_init(void)
5344 zfs_ioctl_register("snapshot", ZFS_IOC_SNAPSHOT
,
5345 zfs_ioc_snapshot
, zfs_secpolicy_snapshot
, POOL_NAME
,
5346 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5348 zfs_ioctl_register("log_history", ZFS_IOC_LOG_HISTORY
,
5349 zfs_ioc_log_history
, zfs_secpolicy_log_history
, NO_NAME
,
5350 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_FALSE
, B_FALSE
);
5352 zfs_ioctl_register("space_snaps", ZFS_IOC_SPACE_SNAPS
,
5353 zfs_ioc_space_snaps
, zfs_secpolicy_read
, DATASET_NAME
,
5354 POOL_CHECK_SUSPENDED
, B_FALSE
, B_FALSE
);
5356 zfs_ioctl_register("send", ZFS_IOC_SEND_NEW
,
5357 zfs_ioc_send_new
, zfs_secpolicy_send_new
, DATASET_NAME
,
5358 POOL_CHECK_SUSPENDED
, B_FALSE
, B_FALSE
);
5360 zfs_ioctl_register("send_space", ZFS_IOC_SEND_SPACE
,
5361 zfs_ioc_send_space
, zfs_secpolicy_read
, DATASET_NAME
,
5362 POOL_CHECK_SUSPENDED
, B_FALSE
, B_FALSE
);
5364 zfs_ioctl_register("create", ZFS_IOC_CREATE
,
5365 zfs_ioc_create
, zfs_secpolicy_create_clone
, DATASET_NAME
,
5366 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5368 zfs_ioctl_register("clone", ZFS_IOC_CLONE
,
5369 zfs_ioc_clone
, zfs_secpolicy_create_clone
, DATASET_NAME
,
5370 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5372 zfs_ioctl_register("destroy_snaps", ZFS_IOC_DESTROY_SNAPS
,
5373 zfs_ioc_destroy_snaps
, zfs_secpolicy_destroy_snaps
, POOL_NAME
,
5374 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5376 zfs_ioctl_register("hold", ZFS_IOC_HOLD
,
5377 zfs_ioc_hold
, zfs_secpolicy_hold
, POOL_NAME
,
5378 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5379 zfs_ioctl_register("release", ZFS_IOC_RELEASE
,
5380 zfs_ioc_release
, zfs_secpolicy_release
, POOL_NAME
,
5381 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5383 zfs_ioctl_register("get_holds", ZFS_IOC_GET_HOLDS
,
5384 zfs_ioc_get_holds
, zfs_secpolicy_read
, DATASET_NAME
,
5385 POOL_CHECK_SUSPENDED
, B_FALSE
, B_FALSE
);
5387 zfs_ioctl_register("rollback", ZFS_IOC_ROLLBACK
,
5388 zfs_ioc_rollback
, zfs_secpolicy_rollback
, DATASET_NAME
,
5389 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_FALSE
, B_TRUE
);
5391 zfs_ioctl_register("bookmark", ZFS_IOC_BOOKMARK
,
5392 zfs_ioc_bookmark
, zfs_secpolicy_bookmark
, POOL_NAME
,
5393 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5395 zfs_ioctl_register("get_bookmarks", ZFS_IOC_GET_BOOKMARKS
,
5396 zfs_ioc_get_bookmarks
, zfs_secpolicy_read
, DATASET_NAME
,
5397 POOL_CHECK_SUSPENDED
, B_FALSE
, B_FALSE
);
5399 zfs_ioctl_register("destroy_bookmarks", ZFS_IOC_DESTROY_BOOKMARKS
,
5400 zfs_ioc_destroy_bookmarks
, zfs_secpolicy_destroy_bookmarks
,
5402 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
, B_TRUE
, B_TRUE
);
5404 /* IOCTLS that use the legacy function signature */
5406 zfs_ioctl_register_legacy(ZFS_IOC_POOL_FREEZE
, zfs_ioc_pool_freeze
,
5407 zfs_secpolicy_config
, NO_NAME
, B_FALSE
, POOL_CHECK_READONLY
);
5409 zfs_ioctl_register_pool(ZFS_IOC_POOL_CREATE
, zfs_ioc_pool_create
,
5410 zfs_secpolicy_config
, B_TRUE
, POOL_CHECK_NONE
);
5411 zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_SCAN
,
5413 zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_UPGRADE
,
5414 zfs_ioc_pool_upgrade
);
5415 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_ADD
,
5417 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_REMOVE
,
5418 zfs_ioc_vdev_remove
);
5419 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SET_STATE
,
5420 zfs_ioc_vdev_set_state
);
5421 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_ATTACH
,
5422 zfs_ioc_vdev_attach
);
5423 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_DETACH
,
5424 zfs_ioc_vdev_detach
);
5425 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SETPATH
,
5426 zfs_ioc_vdev_setpath
);
5427 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SETFRU
,
5428 zfs_ioc_vdev_setfru
);
5429 zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_SET_PROPS
,
5430 zfs_ioc_pool_set_props
);
5431 zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SPLIT
,
5432 zfs_ioc_vdev_split
);
5433 zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_REGUID
,
5434 zfs_ioc_pool_reguid
);
5436 zfs_ioctl_register_pool_meta(ZFS_IOC_POOL_CONFIGS
,
5437 zfs_ioc_pool_configs
, zfs_secpolicy_none
);
5438 zfs_ioctl_register_pool_meta(ZFS_IOC_POOL_TRYIMPORT
,
5439 zfs_ioc_pool_tryimport
, zfs_secpolicy_config
);
5440 zfs_ioctl_register_pool_meta(ZFS_IOC_INJECT_FAULT
,
5441 zfs_ioc_inject_fault
, zfs_secpolicy_inject
);
5442 zfs_ioctl_register_pool_meta(ZFS_IOC_CLEAR_FAULT
,
5443 zfs_ioc_clear_fault
, zfs_secpolicy_inject
);
5444 zfs_ioctl_register_pool_meta(ZFS_IOC_INJECT_LIST_NEXT
,
5445 zfs_ioc_inject_list_next
, zfs_secpolicy_inject
);
5448 * pool destroy, and export don't log the history as part of
5449 * zfsdev_ioctl, but rather zfs_ioc_pool_export
5450 * does the logging of those commands.
5452 zfs_ioctl_register_pool(ZFS_IOC_POOL_DESTROY
, zfs_ioc_pool_destroy
,
5453 zfs_secpolicy_config
, B_FALSE
, POOL_CHECK_NONE
);
5454 zfs_ioctl_register_pool(ZFS_IOC_POOL_EXPORT
, zfs_ioc_pool_export
,
5455 zfs_secpolicy_config
, B_FALSE
, POOL_CHECK_NONE
);
5457 zfs_ioctl_register_pool(ZFS_IOC_POOL_STATS
, zfs_ioc_pool_stats
,
5458 zfs_secpolicy_read
, B_FALSE
, POOL_CHECK_NONE
);
5459 zfs_ioctl_register_pool(ZFS_IOC_POOL_GET_PROPS
, zfs_ioc_pool_get_props
,
5460 zfs_secpolicy_read
, B_FALSE
, POOL_CHECK_NONE
);
5462 zfs_ioctl_register_pool(ZFS_IOC_ERROR_LOG
, zfs_ioc_error_log
,
5463 zfs_secpolicy_inject
, B_FALSE
, POOL_CHECK_SUSPENDED
);
5464 zfs_ioctl_register_pool(ZFS_IOC_DSOBJ_TO_DSNAME
,
5465 zfs_ioc_dsobj_to_dsname
,
5466 zfs_secpolicy_diff
, B_FALSE
, POOL_CHECK_SUSPENDED
);
5467 zfs_ioctl_register_pool(ZFS_IOC_POOL_GET_HISTORY
,
5468 zfs_ioc_pool_get_history
,
5469 zfs_secpolicy_config
, B_FALSE
, POOL_CHECK_SUSPENDED
);
5471 zfs_ioctl_register_pool(ZFS_IOC_POOL_IMPORT
, zfs_ioc_pool_import
,
5472 zfs_secpolicy_config
, B_TRUE
, POOL_CHECK_NONE
);
5474 zfs_ioctl_register_pool(ZFS_IOC_CLEAR
, zfs_ioc_clear
,
5475 zfs_secpolicy_config
, B_TRUE
, POOL_CHECK_NONE
);
5476 zfs_ioctl_register_pool(ZFS_IOC_POOL_REOPEN
, zfs_ioc_pool_reopen
,
5477 zfs_secpolicy_config
, B_TRUE
, POOL_CHECK_SUSPENDED
);
5479 zfs_ioctl_register_dataset_read(ZFS_IOC_SPACE_WRITTEN
,
5480 zfs_ioc_space_written
);
5481 zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_RECVD_PROPS
,
5482 zfs_ioc_objset_recvd_props
);
5483 zfs_ioctl_register_dataset_read(ZFS_IOC_NEXT_OBJ
,
5485 zfs_ioctl_register_dataset_read(ZFS_IOC_GET_FSACL
,
5487 zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_STATS
,
5488 zfs_ioc_objset_stats
);
5489 zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_ZPLPROPS
,
5490 zfs_ioc_objset_zplprops
);
5491 zfs_ioctl_register_dataset_read(ZFS_IOC_DATASET_LIST_NEXT
,
5492 zfs_ioc_dataset_list_next
);
5493 zfs_ioctl_register_dataset_read(ZFS_IOC_SNAPSHOT_LIST_NEXT
,
5494 zfs_ioc_snapshot_list_next
);
5495 zfs_ioctl_register_dataset_read(ZFS_IOC_SEND_PROGRESS
,
5496 zfs_ioc_send_progress
);
5498 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_DIFF
,
5499 zfs_ioc_diff
, zfs_secpolicy_diff
);
5500 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_OBJ_TO_STATS
,
5501 zfs_ioc_obj_to_stats
, zfs_secpolicy_diff
);
5502 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_OBJ_TO_PATH
,
5503 zfs_ioc_obj_to_path
, zfs_secpolicy_diff
);
5504 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_USERSPACE_ONE
,
5505 zfs_ioc_userspace_one
, zfs_secpolicy_userspace_one
);
5506 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_USERSPACE_MANY
,
5507 zfs_ioc_userspace_many
, zfs_secpolicy_userspace_many
);
5508 zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_SEND
,
5509 zfs_ioc_send
, zfs_secpolicy_send
);
5511 zfs_ioctl_register_dataset_modify(ZFS_IOC_SET_PROP
, zfs_ioc_set_prop
,
5512 zfs_secpolicy_none
);
5513 zfs_ioctl_register_dataset_modify(ZFS_IOC_DESTROY
, zfs_ioc_destroy
,
5514 zfs_secpolicy_destroy
);
5515 zfs_ioctl_register_dataset_modify(ZFS_IOC_RENAME
, zfs_ioc_rename
,
5516 zfs_secpolicy_rename
);
5517 zfs_ioctl_register_dataset_modify(ZFS_IOC_RECV
, zfs_ioc_recv
,
5518 zfs_secpolicy_recv
);
5519 zfs_ioctl_register_dataset_modify(ZFS_IOC_PROMOTE
, zfs_ioc_promote
,
5520 zfs_secpolicy_promote
);
5521 zfs_ioctl_register_dataset_modify(ZFS_IOC_INHERIT_PROP
,
5522 zfs_ioc_inherit_prop
, zfs_secpolicy_inherit_prop
);
5523 zfs_ioctl_register_dataset_modify(ZFS_IOC_SET_FSACL
, zfs_ioc_set_fsacl
,
5524 zfs_secpolicy_set_fsacl
);
5526 zfs_ioctl_register_dataset_nolog(ZFS_IOC_SHARE
, zfs_ioc_share
,
5527 zfs_secpolicy_share
, POOL_CHECK_NONE
);
5528 zfs_ioctl_register_dataset_nolog(ZFS_IOC_SMB_ACL
, zfs_ioc_smb_acl
,
5529 zfs_secpolicy_smb_acl
, POOL_CHECK_NONE
);
5530 zfs_ioctl_register_dataset_nolog(ZFS_IOC_USERSPACE_UPGRADE
,
5531 zfs_ioc_userspace_upgrade
, zfs_secpolicy_userspace_upgrade
,
5532 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
);
5533 zfs_ioctl_register_dataset_nolog(ZFS_IOC_TMP_SNAPSHOT
,
5534 zfs_ioc_tmp_snapshot
, zfs_secpolicy_tmp_snapshot
,
5535 POOL_CHECK_SUSPENDED
| POOL_CHECK_READONLY
);
5540 zfs_ioctl_register_legacy(ZFS_IOC_EVENTS_NEXT
, zfs_ioc_events_next
,
5541 zfs_secpolicy_config
, NO_NAME
, B_FALSE
, POOL_CHECK_NONE
);
5542 zfs_ioctl_register_legacy(ZFS_IOC_EVENTS_CLEAR
, zfs_ioc_events_clear
,
5543 zfs_secpolicy_config
, NO_NAME
, B_FALSE
, POOL_CHECK_NONE
);
5544 zfs_ioctl_register_legacy(ZFS_IOC_EVENTS_SEEK
, zfs_ioc_events_seek
,
5545 zfs_secpolicy_config
, NO_NAME
, B_FALSE
, POOL_CHECK_NONE
);
5549 pool_status_check(const char *name
, zfs_ioc_namecheck_t type
,
5550 zfs_ioc_poolcheck_t check
)
5555 ASSERT(type
== POOL_NAME
|| type
== DATASET_NAME
);
5557 if (check
& POOL_CHECK_NONE
)
5560 error
= spa_open(name
, &spa
, FTAG
);
5562 if ((check
& POOL_CHECK_SUSPENDED
) && spa_suspended(spa
))
5563 error
= SET_ERROR(EAGAIN
);
5564 else if ((check
& POOL_CHECK_READONLY
) && !spa_writeable(spa
))
5565 error
= SET_ERROR(EROFS
);
5566 spa_close(spa
, FTAG
);
5572 zfsdev_get_state_impl(minor_t minor
, enum zfsdev_state_type which
)
5576 for (zs
= zfsdev_state_list
; zs
!= NULL
; zs
= zs
->zs_next
) {
5577 if (zs
->zs_minor
== minor
) {
5581 return (zs
->zs_onexit
);
5583 return (zs
->zs_zevent
);
5594 zfsdev_get_state(minor_t minor
, enum zfsdev_state_type which
)
5598 ptr
= zfsdev_get_state_impl(minor
, which
);
5604 zfsdev_getminor(struct file
*filp
)
5606 ASSERT(filp
!= NULL
);
5607 ASSERT(filp
->private_data
!= NULL
);
5609 return (((zfsdev_state_t
*)filp
->private_data
)->zs_minor
);
5613 * Find a free minor number. The zfsdev_state_list is expected to
5614 * be short since it is only a list of currently open file handles.
5617 zfsdev_minor_alloc(void)
5619 static minor_t last_minor
= 0;
5622 ASSERT(MUTEX_HELD(&zfsdev_state_lock
));
5624 for (m
= last_minor
+ 1; m
!= last_minor
; m
++) {
5625 if (m
> ZFSDEV_MAX_MINOR
)
5627 if (zfsdev_get_state_impl(m
, ZST_ALL
) == NULL
) {
5637 zfsdev_state_init(struct file
*filp
)
5639 zfsdev_state_t
*zs
, *zsprev
= NULL
;
5641 boolean_t newzs
= B_FALSE
;
5643 ASSERT(MUTEX_HELD(&zfsdev_state_lock
));
5645 minor
= zfsdev_minor_alloc();
5647 return (SET_ERROR(ENXIO
));
5649 for (zs
= zfsdev_state_list
; zs
!= NULL
; zs
= zs
->zs_next
) {
5650 if (zs
->zs_minor
== -1)
5656 zs
= kmem_zalloc(sizeof (zfsdev_state_t
), KM_SLEEP
);
5661 filp
->private_data
= zs
;
5663 zfs_onexit_init((zfs_onexit_t
**)&zs
->zs_onexit
);
5664 zfs_zevent_init((zfs_zevent_t
**)&zs
->zs_zevent
);
5668 * In order to provide for lock-free concurrent read access
5669 * to the minor list in zfsdev_get_state_impl(), new entries
5670 * must be completely written before linking them into the
5671 * list whereas existing entries are already linked; the last
5672 * operation must be updating zs_minor (from -1 to the new
5676 zs
->zs_minor
= minor
;
5678 zsprev
->zs_next
= zs
;
5681 zs
->zs_minor
= minor
;
5688 zfsdev_state_destroy(struct file
*filp
)
5692 ASSERT(MUTEX_HELD(&zfsdev_state_lock
));
5693 ASSERT(filp
->private_data
!= NULL
);
5695 zs
= filp
->private_data
;
5697 zfs_onexit_destroy(zs
->zs_onexit
);
5698 zfs_zevent_destroy(zs
->zs_zevent
);
5704 zfsdev_open(struct inode
*ino
, struct file
*filp
)
5708 mutex_enter(&zfsdev_state_lock
);
5709 error
= zfsdev_state_init(filp
);
5710 mutex_exit(&zfsdev_state_lock
);
5716 zfsdev_release(struct inode
*ino
, struct file
*filp
)
5720 mutex_enter(&zfsdev_state_lock
);
5721 error
= zfsdev_state_destroy(filp
);
5722 mutex_exit(&zfsdev_state_lock
);
5728 zfsdev_ioctl(struct file
*filp
, unsigned cmd
, unsigned long arg
)
5732 int error
, rc
, flag
= 0;
5733 const zfs_ioc_vec_t
*vec
;
5734 char *saved_poolname
= NULL
;
5735 nvlist_t
*innvl
= NULL
;
5737 vecnum
= cmd
- ZFS_IOC_FIRST
;
5738 if (vecnum
>= sizeof (zfs_ioc_vec
) / sizeof (zfs_ioc_vec
[0]))
5739 return (-SET_ERROR(EINVAL
));
5740 vec
= &zfs_ioc_vec
[vecnum
];
5743 * The registered ioctl list may be sparse, verify that either
5744 * a normal or legacy handler are registered.
5746 if (vec
->zvec_func
== NULL
&& vec
->zvec_legacy_func
== NULL
)
5747 return (-SET_ERROR(EINVAL
));
5749 zc
= kmem_zalloc(sizeof (zfs_cmd_t
), KM_SLEEP
);
5751 error
= ddi_copyin((void *)arg
, zc
, sizeof (zfs_cmd_t
), flag
);
5753 error
= SET_ERROR(EFAULT
);
5757 zc
->zc_iflags
= flag
& FKIOCTL
;
5758 if (zc
->zc_nvlist_src_size
!= 0) {
5759 error
= get_nvlist(zc
->zc_nvlist_src
, zc
->zc_nvlist_src_size
,
5760 zc
->zc_iflags
, &innvl
);
5766 * Ensure that all pool/dataset names are valid before we pass down to
5769 zc
->zc_name
[sizeof (zc
->zc_name
) - 1] = '\0';
5770 switch (vec
->zvec_namecheck
) {
5772 if (pool_namecheck(zc
->zc_name
, NULL
, NULL
) != 0)
5773 error
= SET_ERROR(EINVAL
);
5775 error
= pool_status_check(zc
->zc_name
,
5776 vec
->zvec_namecheck
, vec
->zvec_pool_check
);
5780 if (dataset_namecheck(zc
->zc_name
, NULL
, NULL
) != 0)
5781 error
= SET_ERROR(EINVAL
);
5783 error
= pool_status_check(zc
->zc_name
,
5784 vec
->zvec_namecheck
, vec
->zvec_pool_check
);
5792 if (error
== 0 && !(flag
& FKIOCTL
))
5793 error
= vec
->zvec_secpolicy(zc
, innvl
, CRED());
5798 /* legacy ioctls can modify zc_name */
5799 saved_poolname
= strdup(zc
->zc_name
);
5800 if (saved_poolname
== NULL
) {
5801 error
= SET_ERROR(ENOMEM
);
5804 saved_poolname
[strcspn(saved_poolname
, "/@#")] = '\0';
5807 if (vec
->zvec_func
!= NULL
) {
5811 nvlist_t
*lognv
= NULL
;
5813 ASSERT(vec
->zvec_legacy_func
== NULL
);
5816 * Add the innvl to the lognv before calling the func,
5817 * in case the func changes the innvl.
5819 if (vec
->zvec_allow_log
) {
5820 lognv
= fnvlist_alloc();
5821 fnvlist_add_string(lognv
, ZPOOL_HIST_IOCTL
,
5823 if (!nvlist_empty(innvl
)) {
5824 fnvlist_add_nvlist(lognv
, ZPOOL_HIST_INPUT_NVL
,
5829 outnvl
= fnvlist_alloc();
5830 error
= vec
->zvec_func(zc
->zc_name
, innvl
, outnvl
);
5832 if (error
== 0 && vec
->zvec_allow_log
&&
5833 spa_open(zc
->zc_name
, &spa
, FTAG
) == 0) {
5834 if (!nvlist_empty(outnvl
)) {
5835 fnvlist_add_nvlist(lognv
, ZPOOL_HIST_OUTPUT_NVL
,
5838 (void) spa_history_log_nvl(spa
, lognv
);
5839 spa_close(spa
, FTAG
);
5841 fnvlist_free(lognv
);
5843 if (!nvlist_empty(outnvl
) || zc
->zc_nvlist_dst_size
!= 0) {
5845 if (vec
->zvec_smush_outnvlist
) {
5846 smusherror
= nvlist_smush(outnvl
,
5847 zc
->zc_nvlist_dst_size
);
5849 if (smusherror
== 0)
5850 puterror
= put_nvlist(zc
, outnvl
);
5856 nvlist_free(outnvl
);
5858 error
= vec
->zvec_legacy_func(zc
);
5863 rc
= ddi_copyout(zc
, (void *)arg
, sizeof (zfs_cmd_t
), flag
);
5864 if (error
== 0 && rc
!= 0)
5865 error
= SET_ERROR(EFAULT
);
5866 if (error
== 0 && vec
->zvec_allow_log
) {
5867 char *s
= tsd_get(zfs_allow_log_key
);
5870 (void) tsd_set(zfs_allow_log_key
, saved_poolname
);
5872 if (saved_poolname
!= NULL
)
5873 strfree(saved_poolname
);
5876 kmem_free(zc
, sizeof (zfs_cmd_t
));
5880 #ifdef CONFIG_COMPAT
5882 zfsdev_compat_ioctl(struct file
*filp
, unsigned cmd
, unsigned long arg
)
5884 return (zfsdev_ioctl(filp
, cmd
, arg
));
5887 #define zfsdev_compat_ioctl NULL
5890 static const struct file_operations zfsdev_fops
= {
5891 .open
= zfsdev_open
,
5892 .release
= zfsdev_release
,
5893 .unlocked_ioctl
= zfsdev_ioctl
,
5894 .compat_ioctl
= zfsdev_compat_ioctl
,
5895 .owner
= THIS_MODULE
,
5898 static struct miscdevice zfs_misc
= {
5899 .minor
= MISC_DYNAMIC_MINOR
,
5901 .fops
= &zfsdev_fops
,
5909 mutex_init(&zfsdev_state_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
5910 zfsdev_state_list
= kmem_zalloc(sizeof (zfsdev_state_t
), KM_SLEEP
);
5911 zfsdev_state_list
->zs_minor
= -1;
5913 error
= misc_register(&zfs_misc
);
5915 printk(KERN_INFO
"ZFS: misc_register() failed %d\n", error
);
5926 zfsdev_state_t
*zs
, *zsprev
= NULL
;
5928 error
= misc_deregister(&zfs_misc
);
5930 printk(KERN_INFO
"ZFS: misc_deregister() failed %d\n", error
);
5932 mutex_destroy(&zfsdev_state_lock
);
5934 for (zs
= zfsdev_state_list
; zs
!= NULL
; zs
= zs
->zs_next
) {
5936 kmem_free(zsprev
, sizeof (zfsdev_state_t
));
5940 kmem_free(zsprev
, sizeof (zfsdev_state_t
));
5944 zfs_allow_log_destroy(void *arg
)
5946 char *poolname
= arg
;
5951 #define ZFS_DEBUG_STR " (DEBUG mode)"
5953 #define ZFS_DEBUG_STR ""
5961 error
= vn_set_pwd("/");
5964 "ZFS: Warning unable to set pwd to '/': %d\n", error
);
5968 spa_init(FREAD
| FWRITE
);
5971 if ((error
= zvol_init()) != 0)
5976 if ((error
= zfs_attach()) != 0)
5979 tsd_create(&zfs_fsyncer_key
, NULL
);
5980 tsd_create(&rrw_tsd_key
, rrw_tsd_destroy
);
5981 tsd_create(&zfs_allow_log_key
, zfs_allow_log_destroy
);
5983 printk(KERN_NOTICE
"ZFS: Loaded module v%s-%s%s, "
5984 "ZFS pool version %s, ZFS filesystem version %s\n",
5985 ZFS_META_VERSION
, ZFS_META_RELEASE
, ZFS_DEBUG_STR
,
5986 SPA_VERSION_STRING
, ZPL_VERSION_STRING
);
5987 #ifndef CONFIG_FS_POSIX_ACL
5988 printk(KERN_NOTICE
"ZFS: Posix ACLs disabled by kernel\n");
5989 #endif /* CONFIG_FS_POSIX_ACL */
5998 printk(KERN_NOTICE
"ZFS: Failed to Load ZFS Filesystem v%s-%s%s"
5999 ", rc = %d\n", ZFS_META_VERSION
, ZFS_META_RELEASE
,
6000 ZFS_DEBUG_STR
, error
);
6013 tsd_destroy(&zfs_fsyncer_key
);
6014 tsd_destroy(&rrw_tsd_key
);
6015 tsd_destroy(&zfs_allow_log_key
);
6017 printk(KERN_NOTICE
"ZFS: Unloaded module v%s-%s%s\n",
6018 ZFS_META_VERSION
, ZFS_META_RELEASE
, ZFS_DEBUG_STR
);
6025 MODULE_DESCRIPTION("ZFS");
6026 MODULE_AUTHOR(ZFS_META_AUTHOR
);
6027 MODULE_LICENSE(ZFS_META_LICENSE
);
6028 MODULE_VERSION(ZFS_META_VERSION
"-" ZFS_META_RELEASE
);
6029 #endif /* HAVE_SPL */