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 2009 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
30 #include <libdevinfo.h>
40 #include <sys/mntent.h>
41 #include <sys/mount.h>
50 #include <directory.h>
56 #include "zfs_namecheck.h"
58 #include "libzfs_impl.h"
59 #include "zfs_deleg.h"
61 static int zvol_create_link_common(libzfs_handle_t
*, const char *, int);
62 static int userquota_propname_decode(const char *propname
, boolean_t zoned
,
63 zfs_userquota_prop_t
*typep
, char *domain
, int domainlen
, uint64_t *ridp
);
66 * Given a single type (not a mask of types), return the type in a human
70 zfs_type_to_name(zfs_type_t type
)
73 case ZFS_TYPE_FILESYSTEM
:
74 return (dgettext(TEXT_DOMAIN
, "filesystem"));
75 case ZFS_TYPE_SNAPSHOT
:
76 return (dgettext(TEXT_DOMAIN
, "snapshot"));
78 return (dgettext(TEXT_DOMAIN
, "volume"));
85 * Given a path and mask of ZFS types, return a string describing this dataset.
86 * This is used when we fail to open a dataset and we cannot get an exact type.
87 * We guess what the type would have been based on the path and the mask of
91 path_to_str(const char *path
, int types
)
94 * When given a single type, always report the exact type.
96 if (types
== ZFS_TYPE_SNAPSHOT
)
97 return (dgettext(TEXT_DOMAIN
, "snapshot"));
98 if (types
== ZFS_TYPE_FILESYSTEM
)
99 return (dgettext(TEXT_DOMAIN
, "filesystem"));
100 if (types
== ZFS_TYPE_VOLUME
)
101 return (dgettext(TEXT_DOMAIN
, "volume"));
104 * The user is requesting more than one type of dataset. If this is the
105 * case, consult the path itself. If we're looking for a snapshot, and
106 * a '@' is found, then report it as "snapshot". Otherwise, remove the
107 * snapshot attribute and try again.
109 if (types
& ZFS_TYPE_SNAPSHOT
) {
110 if (strchr(path
, '@') != NULL
)
111 return (dgettext(TEXT_DOMAIN
, "snapshot"));
112 return (path_to_str(path
, types
& ~ZFS_TYPE_SNAPSHOT
));
116 * The user has requested either filesystems or volumes.
117 * We have no way of knowing a priori what type this would be, so always
118 * report it as "filesystem" or "volume", our two primitive types.
120 if (types
& ZFS_TYPE_FILESYSTEM
)
121 return (dgettext(TEXT_DOMAIN
, "filesystem"));
123 assert(types
& ZFS_TYPE_VOLUME
);
124 return (dgettext(TEXT_DOMAIN
, "volume"));
128 * Validate a ZFS path. This is used even before trying to open the dataset, to
129 * provide a more meaningful error message. We call zfs_error_aux() to
130 * explain exactly why the name was not valid.
133 zfs_validate_name(libzfs_handle_t
*hdl
, const char *path
, int type
,
139 if (dataset_namecheck(path
, &why
, &what
) != 0) {
142 case NAME_ERR_TOOLONG
:
143 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
144 "name is too long"));
147 case NAME_ERR_LEADING_SLASH
:
148 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
149 "leading slash in name"));
152 case NAME_ERR_EMPTY_COMPONENT
:
153 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
154 "empty component in name"));
157 case NAME_ERR_TRAILING_SLASH
:
158 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
159 "trailing slash in name"));
162 case NAME_ERR_INVALCHAR
:
164 dgettext(TEXT_DOMAIN
, "invalid character "
165 "'%c' in name"), what
);
168 case NAME_ERR_MULTIPLE_AT
:
169 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
170 "multiple '@' delimiters in name"));
173 case NAME_ERR_NOLETTER
:
174 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
175 "pool doesn't begin with a letter"));
178 case NAME_ERR_RESERVED
:
179 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
180 "name is reserved"));
183 case NAME_ERR_DISKLIKE
:
184 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
185 "reserved disk name"));
193 if (!(type
& ZFS_TYPE_SNAPSHOT
) && strchr(path
, '@') != NULL
) {
195 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
196 "snapshot delimiter '@' in filesystem name"));
200 if (type
== ZFS_TYPE_SNAPSHOT
&& strchr(path
, '@') == NULL
) {
202 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
203 "missing '@' delimiter in snapshot name"));
207 if (modifying
&& strchr(path
, '%') != NULL
) {
209 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
210 "invalid character %c in name"), '%');
218 zfs_name_valid(const char *name
, zfs_type_t type
)
220 if (type
== ZFS_TYPE_POOL
)
221 return (zpool_name_valid(NULL
, B_FALSE
, name
));
222 return (zfs_validate_name(NULL
, name
, type
, B_FALSE
));
226 * This function takes the raw DSL properties, and filters out the user-defined
227 * properties into a separate nvlist.
230 process_user_props(zfs_handle_t
*zhp
, nvlist_t
*props
)
232 libzfs_handle_t
*hdl
= zhp
->zfs_hdl
;
237 if (nvlist_alloc(&nvl
, NV_UNIQUE_NAME
, 0) != 0) {
238 (void) no_memory(hdl
);
243 while ((elem
= nvlist_next_nvpair(props
, elem
)) != NULL
) {
244 if (!zfs_prop_user(nvpair_name(elem
)))
247 verify(nvpair_value_nvlist(elem
, &propval
) == 0);
248 if (nvlist_add_nvlist(nvl
, nvpair_name(elem
), propval
) != 0) {
250 (void) no_memory(hdl
);
258 static zpool_handle_t
*
259 zpool_add_handle(zfs_handle_t
*zhp
, const char *pool_name
)
261 libzfs_handle_t
*hdl
= zhp
->zfs_hdl
;
264 if ((zph
= zpool_open_canfail(hdl
, pool_name
)) != NULL
) {
265 if (hdl
->libzfs_pool_handles
!= NULL
)
266 zph
->zpool_next
= hdl
->libzfs_pool_handles
;
267 hdl
->libzfs_pool_handles
= zph
;
272 static zpool_handle_t
*
273 zpool_find_handle(zfs_handle_t
*zhp
, const char *pool_name
, int len
)
275 libzfs_handle_t
*hdl
= zhp
->zfs_hdl
;
276 zpool_handle_t
*zph
= hdl
->libzfs_pool_handles
;
278 while ((zph
!= NULL
) &&
279 (strncmp(pool_name
, zpool_get_name(zph
), len
) != 0))
280 zph
= zph
->zpool_next
;
285 * Returns a handle to the pool that contains the provided dataset.
286 * If a handle to that pool already exists then that handle is returned.
287 * Otherwise, a new handle is created and added to the list of handles.
289 static zpool_handle_t
*
290 zpool_handle(zfs_handle_t
*zhp
)
296 len
= strcspn(zhp
->zfs_name
, "/@") + 1;
297 pool_name
= zfs_alloc(zhp
->zfs_hdl
, len
);
298 (void) strlcpy(pool_name
, zhp
->zfs_name
, len
);
300 zph
= zpool_find_handle(zhp
, pool_name
, len
);
302 zph
= zpool_add_handle(zhp
, pool_name
);
309 zpool_free_handles(libzfs_handle_t
*hdl
)
311 zpool_handle_t
*next
, *zph
= hdl
->libzfs_pool_handles
;
313 while (zph
!= NULL
) {
314 next
= zph
->zpool_next
;
318 hdl
->libzfs_pool_handles
= NULL
;
322 * Utility function to gather stats (objset and zpl) for the given object.
325 get_stats_ioctl(zfs_handle_t
*zhp
, zfs_cmd_t
*zc
)
327 libzfs_handle_t
*hdl
= zhp
->zfs_hdl
;
329 (void) strlcpy(zc
->zc_name
, zhp
->zfs_name
, sizeof (zc
->zc_name
));
331 while (ioctl(hdl
->libzfs_fd
, ZFS_IOC_OBJSET_STATS
, zc
) != 0) {
332 if (errno
== ENOMEM
) {
333 if (zcmd_expand_dst_nvlist(hdl
, zc
) != 0) {
344 put_stats_zhdl(zfs_handle_t
*zhp
, zfs_cmd_t
*zc
)
346 nvlist_t
*allprops
, *userprops
;
348 zhp
->zfs_dmustats
= zc
->zc_objset_stats
; /* structure assignment */
350 if (zcmd_read_dst_nvlist(zhp
->zfs_hdl
, zc
, &allprops
) != 0) {
355 * XXX Why do we store the user props separately, in addition to
356 * storing them in zfs_props?
358 if ((userprops
= process_user_props(zhp
, allprops
)) == NULL
) {
359 nvlist_free(allprops
);
363 nvlist_free(zhp
->zfs_props
);
364 nvlist_free(zhp
->zfs_user_props
);
366 zhp
->zfs_props
= allprops
;
367 zhp
->zfs_user_props
= userprops
;
373 get_stats(zfs_handle_t
*zhp
)
376 zfs_cmd_t zc
= { 0 };
378 if (zcmd_alloc_dst_nvlist(zhp
->zfs_hdl
, &zc
, 0) != 0)
380 if (get_stats_ioctl(zhp
, &zc
) != 0)
382 else if (put_stats_zhdl(zhp
, &zc
) != 0)
384 zcmd_free_nvlists(&zc
);
389 * Refresh the properties currently stored in the handle.
392 zfs_refresh_properties(zfs_handle_t
*zhp
)
394 (void) get_stats(zhp
);
398 * Makes a handle from the given dataset name. Used by zfs_open() and
399 * zfs_iter_* to create child handles on the fly.
402 make_dataset_handle_common(zfs_handle_t
*zhp
, zfs_cmd_t
*zc
)
405 libzfs_handle_t
*hdl
= zhp
->zfs_hdl
;
408 * Preserve history log string.
409 * any changes performed here will be
410 * logged as an internal event.
412 logstr
= zhp
->zfs_hdl
->libzfs_log_str
;
413 zhp
->zfs_hdl
->libzfs_log_str
= NULL
;
416 if (put_stats_zhdl(zhp
, zc
) != 0) {
417 zhp
->zfs_hdl
->libzfs_log_str
= logstr
;
422 if (zhp
->zfs_dmustats
.dds_inconsistent
) {
423 zfs_cmd_t zc2
= { 0 };
426 * If it is dds_inconsistent, then we've caught it in
427 * the middle of a 'zfs receive' or 'zfs destroy', and
428 * it is inconsistent from the ZPL's point of view, so
429 * can't be mounted. However, it could also be that we
430 * have crashed in the middle of one of those
431 * operations, in which case we need to get rid of the
432 * inconsistent state. We do that by either rolling
433 * back to the previous snapshot (which will fail if
434 * there is none), or destroying the filesystem. Note
435 * that if we are still in the middle of an active
436 * 'receive' or 'destroy', then the rollback and destroy
437 * will fail with EBUSY and we will drive on as usual.
440 (void) strlcpy(zc2
.zc_name
, zhp
->zfs_name
,
441 sizeof (zc2
.zc_name
));
443 if (zhp
->zfs_dmustats
.dds_type
== DMU_OST_ZVOL
) {
444 (void) zvol_remove_link(hdl
, zhp
->zfs_name
);
445 zc2
.zc_objset_type
= DMU_OST_ZVOL
;
447 zc2
.zc_objset_type
= DMU_OST_ZFS
;
451 * If we can successfully destroy it, pretend that it
454 if (ioctl(hdl
->libzfs_fd
, ZFS_IOC_DESTROY
, &zc2
) == 0) {
455 zhp
->zfs_hdl
->libzfs_log_str
= logstr
;
459 /* If we can successfully roll it back, reset the stats */
460 if (ioctl(hdl
->libzfs_fd
, ZFS_IOC_ROLLBACK
, &zc2
) == 0) {
461 if (get_stats_ioctl(zhp
, zc
) != 0) {
462 zhp
->zfs_hdl
->libzfs_log_str
= logstr
;
470 * We've managed to open the dataset and gather statistics. Determine
471 * the high-level type.
473 if (zhp
->zfs_dmustats
.dds_type
== DMU_OST_ZVOL
)
474 zhp
->zfs_head_type
= ZFS_TYPE_VOLUME
;
475 else if (zhp
->zfs_dmustats
.dds_type
== DMU_OST_ZFS
)
476 zhp
->zfs_head_type
= ZFS_TYPE_FILESYSTEM
;
480 if (zhp
->zfs_dmustats
.dds_is_snapshot
)
481 zhp
->zfs_type
= ZFS_TYPE_SNAPSHOT
;
482 else if (zhp
->zfs_dmustats
.dds_type
== DMU_OST_ZVOL
)
483 zhp
->zfs_type
= ZFS_TYPE_VOLUME
;
484 else if (zhp
->zfs_dmustats
.dds_type
== DMU_OST_ZFS
)
485 zhp
->zfs_type
= ZFS_TYPE_FILESYSTEM
;
487 abort(); /* we should never see any other types */
489 zhp
->zfs_hdl
->libzfs_log_str
= logstr
;
490 zhp
->zpool_hdl
= zpool_handle(zhp
);
495 make_dataset_handle(libzfs_handle_t
*hdl
, const char *path
)
497 zfs_cmd_t zc
= { 0 };
499 zfs_handle_t
*zhp
= calloc(sizeof (zfs_handle_t
), 1);
505 (void) strlcpy(zhp
->zfs_name
, path
, sizeof (zhp
->zfs_name
));
506 if (zcmd_alloc_dst_nvlist(hdl
, &zc
, 0) != 0) {
510 if (get_stats_ioctl(zhp
, &zc
) == -1) {
511 zcmd_free_nvlists(&zc
);
515 if (make_dataset_handle_common(zhp
, &zc
) == -1) {
519 zcmd_free_nvlists(&zc
);
523 static zfs_handle_t
*
524 make_dataset_handle_zc(libzfs_handle_t
*hdl
, zfs_cmd_t
*zc
)
526 zfs_handle_t
*zhp
= calloc(sizeof (zfs_handle_t
), 1);
532 (void) strlcpy(zhp
->zfs_name
, zc
->zc_name
, sizeof (zhp
->zfs_name
));
533 if (make_dataset_handle_common(zhp
, zc
) == -1) {
541 * Opens the given snapshot, filesystem, or volume. The 'types'
542 * argument is a mask of acceptable types. The function will print an
543 * appropriate error message and return NULL if it can't be opened.
546 zfs_open(libzfs_handle_t
*hdl
, const char *path
, int types
)
551 (void) snprintf(errbuf
, sizeof (errbuf
),
552 dgettext(TEXT_DOMAIN
, "cannot open '%s'"), path
);
555 * Validate the name before we even try to open it.
557 if (!zfs_validate_name(hdl
, path
, ZFS_TYPE_DATASET
, B_FALSE
)) {
558 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
559 "invalid dataset name"));
560 (void) zfs_error(hdl
, EZFS_INVALIDNAME
, errbuf
);
565 * Try to get stats for the dataset, which will tell us if it exists.
568 if ((zhp
= make_dataset_handle(hdl
, path
)) == NULL
) {
569 (void) zfs_standard_error(hdl
, errno
, errbuf
);
573 if (!(types
& zhp
->zfs_type
)) {
574 (void) zfs_error(hdl
, EZFS_BADTYPE
, errbuf
);
583 * Release a ZFS handle. Nothing to do but free the associated memory.
586 zfs_close(zfs_handle_t
*zhp
)
588 if (zhp
->zfs_mntopts
)
589 free(zhp
->zfs_mntopts
);
590 nvlist_free(zhp
->zfs_props
);
591 nvlist_free(zhp
->zfs_user_props
);
595 typedef struct mnttab_node
{
596 struct mnttab mtn_mt
;
601 libzfs_mnttab_cache_compare(const void *arg1
, const void *arg2
)
603 const mnttab_node_t
*mtn1
= arg1
;
604 const mnttab_node_t
*mtn2
= arg2
;
607 rv
= strcmp(mtn1
->mtn_mt
.mnt_special
, mtn2
->mtn_mt
.mnt_special
);
611 return (rv
> 0 ? 1 : -1);
615 libzfs_mnttab_init(libzfs_handle_t
*hdl
)
617 assert(avl_numnodes(&hdl
->libzfs_mnttab_cache
) == 0);
618 avl_create(&hdl
->libzfs_mnttab_cache
, libzfs_mnttab_cache_compare
,
619 sizeof (mnttab_node_t
), offsetof(mnttab_node_t
, mtn_node
));
623 libzfs_mnttab_update(libzfs_handle_t
*hdl
)
627 rewind(hdl
->libzfs_mnttab
);
628 while (getmntent(hdl
->libzfs_mnttab
, &entry
) == 0) {
631 if (strcmp(entry
.mnt_fstype
, MNTTYPE_ZFS
) != 0)
633 mtn
= zfs_alloc(hdl
, sizeof (mnttab_node_t
));
634 mtn
->mtn_mt
.mnt_special
= zfs_strdup(hdl
, entry
.mnt_special
);
635 mtn
->mtn_mt
.mnt_mountp
= zfs_strdup(hdl
, entry
.mnt_mountp
);
636 mtn
->mtn_mt
.mnt_fstype
= zfs_strdup(hdl
, entry
.mnt_fstype
);
637 mtn
->mtn_mt
.mnt_mntopts
= zfs_strdup(hdl
, entry
.mnt_mntopts
);
638 avl_add(&hdl
->libzfs_mnttab_cache
, mtn
);
643 libzfs_mnttab_fini(libzfs_handle_t
*hdl
)
648 while (mtn
= avl_destroy_nodes(&hdl
->libzfs_mnttab_cache
, &cookie
)) {
649 free(mtn
->mtn_mt
.mnt_special
);
650 free(mtn
->mtn_mt
.mnt_mountp
);
651 free(mtn
->mtn_mt
.mnt_fstype
);
652 free(mtn
->mtn_mt
.mnt_mntopts
);
655 avl_destroy(&hdl
->libzfs_mnttab_cache
);
659 libzfs_mnttab_cache(libzfs_handle_t
*hdl
, boolean_t enable
)
661 hdl
->libzfs_mnttab_enable
= enable
;
665 libzfs_mnttab_find(libzfs_handle_t
*hdl
, const char *fsname
,
666 struct mnttab
*entry
)
671 if (!hdl
->libzfs_mnttab_enable
) {
672 struct mnttab srch
= { 0 };
674 if (avl_numnodes(&hdl
->libzfs_mnttab_cache
))
675 libzfs_mnttab_fini(hdl
);
676 rewind(hdl
->libzfs_mnttab
);
677 srch
.mnt_special
= (char *)fsname
;
678 srch
.mnt_fstype
= MNTTYPE_ZFS
;
679 if (getmntany(hdl
->libzfs_mnttab
, entry
, &srch
) == 0)
685 if (avl_numnodes(&hdl
->libzfs_mnttab_cache
) == 0)
686 libzfs_mnttab_update(hdl
);
688 find
.mtn_mt
.mnt_special
= (char *)fsname
;
689 mtn
= avl_find(&hdl
->libzfs_mnttab_cache
, &find
, NULL
);
691 *entry
= mtn
->mtn_mt
;
698 libzfs_mnttab_add(libzfs_handle_t
*hdl
, const char *special
,
699 const char *mountp
, const char *mntopts
)
703 if (avl_numnodes(&hdl
->libzfs_mnttab_cache
) == 0)
705 mtn
= zfs_alloc(hdl
, sizeof (mnttab_node_t
));
706 mtn
->mtn_mt
.mnt_special
= zfs_strdup(hdl
, special
);
707 mtn
->mtn_mt
.mnt_mountp
= zfs_strdup(hdl
, mountp
);
708 mtn
->mtn_mt
.mnt_fstype
= zfs_strdup(hdl
, MNTTYPE_ZFS
);
709 mtn
->mtn_mt
.mnt_mntopts
= zfs_strdup(hdl
, mntopts
);
710 avl_add(&hdl
->libzfs_mnttab_cache
, mtn
);
714 libzfs_mnttab_remove(libzfs_handle_t
*hdl
, const char *fsname
)
719 find
.mtn_mt
.mnt_special
= (char *)fsname
;
720 if (ret
= avl_find(&hdl
->libzfs_mnttab_cache
, (void *)&find
, NULL
)) {
721 avl_remove(&hdl
->libzfs_mnttab_cache
, ret
);
722 free(ret
->mtn_mt
.mnt_special
);
723 free(ret
->mtn_mt
.mnt_mountp
);
724 free(ret
->mtn_mt
.mnt_fstype
);
725 free(ret
->mtn_mt
.mnt_mntopts
);
731 zfs_spa_version(zfs_handle_t
*zhp
, int *spa_version
)
733 zpool_handle_t
*zpool_handle
= zhp
->zpool_hdl
;
735 if (zpool_handle
== NULL
)
738 *spa_version
= zpool_get_prop_int(zpool_handle
,
739 ZPOOL_PROP_VERSION
, NULL
);
744 * The choice of reservation property depends on the SPA version.
747 zfs_which_resv_prop(zfs_handle_t
*zhp
, zfs_prop_t
*resv_prop
)
751 if (zfs_spa_version(zhp
, &spa_version
) < 0)
754 if (spa_version
>= SPA_VERSION_REFRESERVATION
)
755 *resv_prop
= ZFS_PROP_REFRESERVATION
;
757 *resv_prop
= ZFS_PROP_RESERVATION
;
763 * Given an nvlist of properties to set, validates that they are correct, and
764 * parses any numeric properties (index, boolean, etc) if they are specified as
768 zfs_valid_proplist(libzfs_handle_t
*hdl
, zfs_type_t type
, nvlist_t
*nvl
,
769 uint64_t zoned
, zfs_handle_t
*zhp
, const char *errbuf
)
776 int chosen_normal
= -1;
779 if (nvlist_alloc(&ret
, NV_UNIQUE_NAME
, 0) != 0) {
780 (void) no_memory(hdl
);
785 * Make sure this property is valid and applies to this type.
789 while ((elem
= nvlist_next_nvpair(nvl
, elem
)) != NULL
) {
790 const char *propname
= nvpair_name(elem
);
792 prop
= zfs_name_to_prop(propname
);
793 if (prop
== ZPROP_INVAL
&& zfs_prop_user(propname
)) {
795 * This is a user property: make sure it's a
796 * string, and that it's less than ZAP_MAXNAMELEN.
798 if (nvpair_type(elem
) != DATA_TYPE_STRING
) {
799 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
800 "'%s' must be a string"), propname
);
801 (void) zfs_error(hdl
, EZFS_BADPROP
, errbuf
);
805 if (strlen(nvpair_name(elem
)) >= ZAP_MAXNAMELEN
) {
806 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
807 "property name '%s' is too long"),
809 (void) zfs_error(hdl
, EZFS_BADPROP
, errbuf
);
813 (void) nvpair_value_string(elem
, &strval
);
814 if (nvlist_add_string(ret
, propname
, strval
) != 0) {
815 (void) no_memory(hdl
);
822 * Currently, only user properties can be modified on
825 if (type
== ZFS_TYPE_SNAPSHOT
) {
826 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
827 "this property can not be modified for snapshots"));
828 (void) zfs_error(hdl
, EZFS_PROPTYPE
, errbuf
);
832 if (prop
== ZPROP_INVAL
&& zfs_prop_userquota(propname
)) {
833 zfs_userquota_prop_t uqtype
;
834 char newpropname
[128];
839 if (userquota_propname_decode(propname
, zoned
,
840 &uqtype
, domain
, sizeof (domain
), &rid
) != 0) {
842 dgettext(TEXT_DOMAIN
,
843 "'%s' has an invalid user/group name"),
845 (void) zfs_error(hdl
, EZFS_BADPROP
, errbuf
);
849 if (uqtype
!= ZFS_PROP_USERQUOTA
&&
850 uqtype
!= ZFS_PROP_GROUPQUOTA
) {
852 dgettext(TEXT_DOMAIN
, "'%s' is readonly"),
854 (void) zfs_error(hdl
, EZFS_PROPREADONLY
,
859 if (nvpair_type(elem
) == DATA_TYPE_STRING
) {
860 (void) nvpair_value_string(elem
, &strval
);
861 if (strcmp(strval
, "none") == 0) {
863 } else if (zfs_nicestrtonum(hdl
,
864 strval
, &intval
) != 0) {
865 (void) zfs_error(hdl
,
866 EZFS_BADPROP
, errbuf
);
869 } else if (nvpair_type(elem
) ==
871 (void) nvpair_value_uint64(elem
, &intval
);
873 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
874 "use 'none' to disable "
875 "userquota/groupquota"));
879 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
880 "'%s' must be a number"), propname
);
881 (void) zfs_error(hdl
, EZFS_BADPROP
, errbuf
);
885 (void) snprintf(newpropname
, sizeof (newpropname
),
886 "%s%s", zfs_userquota_prop_prefixes
[uqtype
],
891 if (nvlist_add_uint64_array(ret
, newpropname
,
893 (void) no_memory(hdl
);
899 if (prop
== ZPROP_INVAL
) {
900 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
901 "invalid property '%s'"), propname
);
902 (void) zfs_error(hdl
, EZFS_BADPROP
, errbuf
);
906 if (!zfs_prop_valid_for_type(prop
, type
)) {
908 dgettext(TEXT_DOMAIN
, "'%s' does not "
909 "apply to datasets of this type"), propname
);
910 (void) zfs_error(hdl
, EZFS_PROPTYPE
, errbuf
);
914 if (zfs_prop_readonly(prop
) &&
915 (!zfs_prop_setonce(prop
) || zhp
!= NULL
)) {
917 dgettext(TEXT_DOMAIN
, "'%s' is readonly"),
919 (void) zfs_error(hdl
, EZFS_PROPREADONLY
, errbuf
);
923 if (zprop_parse_value(hdl
, elem
, prop
, type
, ret
,
924 &strval
, &intval
, errbuf
) != 0)
928 * Perform some additional checks for specific properties.
931 case ZFS_PROP_VERSION
:
937 version
= zfs_prop_get_int(zhp
, ZFS_PROP_VERSION
);
938 if (intval
< version
) {
939 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
940 "Can not downgrade; already at version %u"),
942 (void) zfs_error(hdl
, EZFS_BADPROP
, errbuf
);
948 case ZFS_PROP_RECORDSIZE
:
949 case ZFS_PROP_VOLBLOCKSIZE
:
950 /* must be power of two within SPA_{MIN,MAX}BLOCKSIZE */
951 if (intval
< SPA_MINBLOCKSIZE
||
952 intval
> SPA_MAXBLOCKSIZE
|| !ISP2(intval
)) {
953 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
954 "'%s' must be power of 2 from %u "
956 (uint_t
)SPA_MINBLOCKSIZE
,
957 (uint_t
)SPA_MAXBLOCKSIZE
>> 10);
958 (void) zfs_error(hdl
, EZFS_BADPROP
, errbuf
);
963 case ZFS_PROP_SHAREISCSI
:
964 if (strcmp(strval
, "off") != 0 &&
965 strcmp(strval
, "on") != 0 &&
966 strcmp(strval
, "type=disk") != 0) {
967 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
968 "'%s' must be 'on', 'off', or 'type=disk'"),
970 (void) zfs_error(hdl
, EZFS_BADPROP
, errbuf
);
976 case ZFS_PROP_MOUNTPOINT
:
980 if (strcmp(strval
, ZFS_MOUNTPOINT_NONE
) == 0 ||
981 strcmp(strval
, ZFS_MOUNTPOINT_LEGACY
) == 0)
984 if (mountpoint_namecheck(strval
, &why
)) {
986 case NAME_ERR_LEADING_SLASH
:
988 dgettext(TEXT_DOMAIN
,
989 "'%s' must be an absolute path, "
990 "'none', or 'legacy'"), propname
);
992 case NAME_ERR_TOOLONG
:
994 dgettext(TEXT_DOMAIN
,
995 "component of '%s' is too long"),
999 (void) zfs_error(hdl
, EZFS_BADPROP
, errbuf
);
1006 case ZFS_PROP_SHARESMB
:
1007 case ZFS_PROP_SHARENFS
:
1009 * For the mountpoint and sharenfs or sharesmb
1010 * properties, check if it can be set in a
1011 * global/non-global zone based on
1012 * the zoned property value:
1014 * global zone non-global zone
1015 * --------------------------------------------------
1016 * zoned=on mountpoint (no) mountpoint (yes)
1017 * sharenfs (no) sharenfs (no)
1018 * sharesmb (no) sharesmb (no)
1020 * zoned=off mountpoint (yes) N/A
1025 if (getzoneid() == GLOBAL_ZONEID
) {
1026 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1027 "'%s' cannot be set on "
1028 "dataset in a non-global zone"),
1030 (void) zfs_error(hdl
, EZFS_ZONED
,
1033 } else if (prop
== ZFS_PROP_SHARENFS
||
1034 prop
== ZFS_PROP_SHARESMB
) {
1035 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1036 "'%s' cannot be set in "
1037 "a non-global zone"), propname
);
1038 (void) zfs_error(hdl
, EZFS_ZONED
,
1042 } else if (getzoneid() != GLOBAL_ZONEID
) {
1044 * If zoned property is 'off', this must be in
1045 * a global zone. If not, something is wrong.
1047 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1048 "'%s' cannot be set while dataset "
1049 "'zoned' property is set"), propname
);
1050 (void) zfs_error(hdl
, EZFS_ZONED
, errbuf
);
1055 * At this point, it is legitimate to set the
1056 * property. Now we want to make sure that the
1057 * property value is valid if it is sharenfs.
1059 if ((prop
== ZFS_PROP_SHARENFS
||
1060 prop
== ZFS_PROP_SHARESMB
) &&
1061 strcmp(strval
, "on") != 0 &&
1062 strcmp(strval
, "off") != 0) {
1063 zfs_share_proto_t proto
;
1065 if (prop
== ZFS_PROP_SHARESMB
)
1071 * Must be an valid sharing protocol
1072 * option string so init the libshare
1073 * in order to enable the parser and
1074 * then parse the options. We use the
1075 * control API since we don't care about
1076 * the current configuration and don't
1077 * want the overhead of loading it
1078 * until we actually do something.
1081 if (zfs_init_libshare(hdl
,
1082 SA_INIT_CONTROL_API
) != SA_OK
) {
1084 * An error occurred so we can't do
1087 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1088 "'%s' cannot be set: problem "
1089 "in share initialization"),
1091 (void) zfs_error(hdl
, EZFS_BADPROP
,
1096 if (zfs_parse_options(strval
, proto
) != SA_OK
) {
1098 * There was an error in parsing so
1099 * deal with it by issuing an error
1100 * message and leaving after
1101 * uninitializing the the libshare
1104 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1105 "'%s' cannot be set to invalid "
1106 "options"), propname
);
1107 (void) zfs_error(hdl
, EZFS_BADPROP
,
1109 zfs_uninit_libshare(hdl
);
1112 zfs_uninit_libshare(hdl
);
1116 case ZFS_PROP_UTF8ONLY
:
1117 chosen_utf
= (int)intval
;
1119 case ZFS_PROP_NORMALIZE
:
1120 chosen_normal
= (int)intval
;
1125 * For changes to existing volumes, we have some additional
1126 * checks to enforce.
1128 if (type
== ZFS_TYPE_VOLUME
&& zhp
!= NULL
) {
1129 uint64_t volsize
= zfs_prop_get_int(zhp
,
1131 uint64_t blocksize
= zfs_prop_get_int(zhp
,
1132 ZFS_PROP_VOLBLOCKSIZE
);
1136 case ZFS_PROP_RESERVATION
:
1137 case ZFS_PROP_REFRESERVATION
:
1138 if (intval
> volsize
) {
1139 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1140 "'%s' is greater than current "
1141 "volume size"), propname
);
1142 (void) zfs_error(hdl
, EZFS_BADPROP
,
1148 case ZFS_PROP_VOLSIZE
:
1149 if (intval
% blocksize
!= 0) {
1150 zfs_nicenum(blocksize
, buf
,
1152 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1153 "'%s' must be a multiple of "
1154 "volume block size (%s)"),
1156 (void) zfs_error(hdl
, EZFS_BADPROP
,
1162 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1163 "'%s' cannot be zero"),
1165 (void) zfs_error(hdl
, EZFS_BADPROP
,
1175 * If normalization was chosen, but no UTF8 choice was made,
1176 * enforce rejection of non-UTF8 names.
1178 * If normalization was chosen, but rejecting non-UTF8 names
1179 * was explicitly not chosen, it is an error.
1181 if (chosen_normal
> 0 && chosen_utf
< 0) {
1182 if (nvlist_add_uint64(ret
,
1183 zfs_prop_to_name(ZFS_PROP_UTF8ONLY
), 1) != 0) {
1184 (void) no_memory(hdl
);
1187 } else if (chosen_normal
> 0 && chosen_utf
== 0) {
1188 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1189 "'%s' must be set 'on' if normalization chosen"),
1190 zfs_prop_to_name(ZFS_PROP_UTF8ONLY
));
1191 (void) zfs_error(hdl
, EZFS_BADPROP
, errbuf
);
1196 * If this is an existing volume, and someone is setting the volsize,
1197 * make sure that it matches the reservation, or add it if necessary.
1199 if (zhp
!= NULL
&& type
== ZFS_TYPE_VOLUME
&&
1200 nvlist_lookup_uint64(ret
, zfs_prop_to_name(ZFS_PROP_VOLSIZE
),
1202 uint64_t old_volsize
= zfs_prop_get_int(zhp
,
1204 uint64_t old_reservation
;
1205 uint64_t new_reservation
;
1206 zfs_prop_t resv_prop
;
1208 if (zfs_which_resv_prop(zhp
, &resv_prop
) < 0)
1210 old_reservation
= zfs_prop_get_int(zhp
, resv_prop
);
1212 if (old_volsize
== old_reservation
&&
1213 nvlist_lookup_uint64(ret
, zfs_prop_to_name(resv_prop
),
1214 &new_reservation
) != 0) {
1215 if (nvlist_add_uint64(ret
,
1216 zfs_prop_to_name(resv_prop
), intval
) != 0) {
1217 (void) no_memory(hdl
);
1230 * Given a property name and value, set the property for the given dataset.
1233 zfs_prop_set(zfs_handle_t
*zhp
, const char *propname
, const char *propval
)
1235 zfs_cmd_t zc
= { 0 };
1237 prop_changelist_t
*cl
= NULL
;
1239 libzfs_handle_t
*hdl
= zhp
->zfs_hdl
;
1240 nvlist_t
*nvl
= NULL
, *realprops
;
1242 boolean_t do_prefix
;
1245 (void) snprintf(errbuf
, sizeof (errbuf
),
1246 dgettext(TEXT_DOMAIN
, "cannot set property for '%s'"),
1249 if (nvlist_alloc(&nvl
, NV_UNIQUE_NAME
, 0) != 0 ||
1250 nvlist_add_string(nvl
, propname
, propval
) != 0) {
1251 (void) no_memory(hdl
);
1255 if ((realprops
= zfs_valid_proplist(hdl
, zhp
->zfs_type
, nvl
,
1256 zfs_prop_get_int(zhp
, ZFS_PROP_ZONED
), zhp
, errbuf
)) == NULL
)
1262 prop
= zfs_name_to_prop(propname
);
1264 if ((cl
= changelist_gather(zhp
, prop
, 0, 0)) == NULL
)
1267 if (prop
== ZFS_PROP_MOUNTPOINT
&& changelist_haszonedchild(cl
)) {
1268 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1269 "child dataset with inherited mountpoint is used "
1270 "in a non-global zone"));
1271 ret
= zfs_error(hdl
, EZFS_ZONED
, errbuf
);
1276 * If the dataset's canmount property is being set to noauto,
1277 * then we want to prevent unmounting & remounting it.
1279 do_prefix
= !((prop
== ZFS_PROP_CANMOUNT
) &&
1280 (zprop_string_to_index(prop
, propval
, &idx
,
1281 ZFS_TYPE_DATASET
) == 0) && (idx
== ZFS_CANMOUNT_NOAUTO
));
1283 if (do_prefix
&& (ret
= changelist_prefix(cl
)) != 0)
1287 * Execute the corresponding ioctl() to set this property.
1289 (void) strlcpy(zc
.zc_name
, zhp
->zfs_name
, sizeof (zc
.zc_name
));
1291 if (zcmd_write_src_nvlist(hdl
, &zc
, nvl
) != 0)
1294 ret
= zfs_ioctl(hdl
, ZFS_IOC_SET_PROP
, &zc
);
1301 * For quotas and reservations, ENOSPC indicates
1302 * something different; setting a quota or reservation
1303 * doesn't use any disk space.
1306 case ZFS_PROP_QUOTA
:
1307 case ZFS_PROP_REFQUOTA
:
1308 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1309 "size is less than current used or "
1311 (void) zfs_error(hdl
, EZFS_PROPSPACE
, errbuf
);
1314 case ZFS_PROP_RESERVATION
:
1315 case ZFS_PROP_REFRESERVATION
:
1316 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1317 "size is greater than available space"));
1318 (void) zfs_error(hdl
, EZFS_PROPSPACE
, errbuf
);
1322 (void) zfs_standard_error(hdl
, errno
, errbuf
);
1328 if (prop
== ZFS_PROP_VOLBLOCKSIZE
)
1329 (void) zfs_error(hdl
, EZFS_VOLHASDATA
, errbuf
);
1331 (void) zfs_standard_error(hdl
, EBUSY
, errbuf
);
1335 (void) zfs_error(hdl
, EZFS_DSREADONLY
, errbuf
);
1339 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1340 "pool and or dataset must be upgraded to set this "
1341 "property or value"));
1342 (void) zfs_error(hdl
, EZFS_BADVERSION
, errbuf
);
1346 if (prop
== ZFS_PROP_COMPRESSION
) {
1347 (void) zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1348 "property setting is not allowed on "
1349 "bootable datasets"));
1350 (void) zfs_error(hdl
, EZFS_NOTSUP
, errbuf
);
1352 (void) zfs_standard_error(hdl
, errno
, errbuf
);
1358 * This platform can't address a volume this big.
1361 if (prop
== ZFS_PROP_VOLSIZE
) {
1362 (void) zfs_error(hdl
, EZFS_VOLTOOBIG
, errbuf
);
1368 (void) zfs_standard_error(hdl
, errno
, errbuf
);
1372 ret
= changelist_postfix(cl
);
1375 * Refresh the statistics so the new property value
1379 (void) get_stats(zhp
);
1384 zcmd_free_nvlists(&zc
);
1386 changelist_free(cl
);
1391 * Given a property, inherit the value from the parent dataset.
1394 zfs_prop_inherit(zfs_handle_t
*zhp
, const char *propname
)
1396 zfs_cmd_t zc
= { 0 };
1398 prop_changelist_t
*cl
;
1399 libzfs_handle_t
*hdl
= zhp
->zfs_hdl
;
1403 (void) snprintf(errbuf
, sizeof (errbuf
), dgettext(TEXT_DOMAIN
,
1404 "cannot inherit %s for '%s'"), propname
, zhp
->zfs_name
);
1406 if ((prop
= zfs_name_to_prop(propname
)) == ZPROP_INVAL
) {
1408 * For user properties, the amount of work we have to do is very
1409 * small, so just do it here.
1411 if (!zfs_prop_user(propname
)) {
1412 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1413 "invalid property"));
1414 return (zfs_error(hdl
, EZFS_BADPROP
, errbuf
));
1417 (void) strlcpy(zc
.zc_name
, zhp
->zfs_name
, sizeof (zc
.zc_name
));
1418 (void) strlcpy(zc
.zc_value
, propname
, sizeof (zc
.zc_value
));
1420 if (zfs_ioctl(zhp
->zfs_hdl
, ZFS_IOC_INHERIT_PROP
, &zc
) != 0)
1421 return (zfs_standard_error(hdl
, errno
, errbuf
));
1427 * Verify that this property is inheritable.
1429 if (zfs_prop_readonly(prop
))
1430 return (zfs_error(hdl
, EZFS_PROPREADONLY
, errbuf
));
1432 if (!zfs_prop_inheritable(prop
))
1433 return (zfs_error(hdl
, EZFS_PROPNONINHERIT
, errbuf
));
1436 * Check to see if the value applies to this type
1438 if (!zfs_prop_valid_for_type(prop
, zhp
->zfs_type
))
1439 return (zfs_error(hdl
, EZFS_PROPTYPE
, errbuf
));
1442 * Normalize the name, to get rid of shorthand abbrevations.
1444 propname
= zfs_prop_to_name(prop
);
1445 (void) strlcpy(zc
.zc_name
, zhp
->zfs_name
, sizeof (zc
.zc_name
));
1446 (void) strlcpy(zc
.zc_value
, propname
, sizeof (zc
.zc_value
));
1448 if (prop
== ZFS_PROP_MOUNTPOINT
&& getzoneid() == GLOBAL_ZONEID
&&
1449 zfs_prop_get_int(zhp
, ZFS_PROP_ZONED
)) {
1450 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1451 "dataset is used in a non-global zone"));
1452 return (zfs_error(hdl
, EZFS_ZONED
, errbuf
));
1456 * Determine datasets which will be affected by this change, if any.
1458 if ((cl
= changelist_gather(zhp
, prop
, 0, 0)) == NULL
)
1461 if (prop
== ZFS_PROP_MOUNTPOINT
&& changelist_haszonedchild(cl
)) {
1462 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1463 "child dataset with inherited mountpoint is used "
1464 "in a non-global zone"));
1465 ret
= zfs_error(hdl
, EZFS_ZONED
, errbuf
);
1469 if ((ret
= changelist_prefix(cl
)) != 0)
1472 if ((ret
= zfs_ioctl(zhp
->zfs_hdl
, ZFS_IOC_INHERIT_PROP
, &zc
)) != 0) {
1473 return (zfs_standard_error(hdl
, errno
, errbuf
));
1476 if ((ret
= changelist_postfix(cl
)) != 0)
1480 * Refresh the statistics so the new property is reflected.
1482 (void) get_stats(zhp
);
1486 changelist_free(cl
);
1491 * True DSL properties are stored in an nvlist. The following two functions
1492 * extract them appropriately.
1495 getprop_uint64(zfs_handle_t
*zhp
, zfs_prop_t prop
, char **source
)
1501 if (nvlist_lookup_nvlist(zhp
->zfs_props
,
1502 zfs_prop_to_name(prop
), &nv
) == 0) {
1503 verify(nvlist_lookup_uint64(nv
, ZPROP_VALUE
, &value
) == 0);
1504 (void) nvlist_lookup_string(nv
, ZPROP_SOURCE
, source
);
1506 verify(!zhp
->zfs_props_table
||
1507 zhp
->zfs_props_table
[prop
] == B_TRUE
);
1508 value
= zfs_prop_default_numeric(prop
);
1516 getprop_string(zfs_handle_t
*zhp
, zfs_prop_t prop
, char **source
)
1522 if (nvlist_lookup_nvlist(zhp
->zfs_props
,
1523 zfs_prop_to_name(prop
), &nv
) == 0) {
1524 verify(nvlist_lookup_string(nv
, ZPROP_VALUE
, &value
) == 0);
1525 (void) nvlist_lookup_string(nv
, ZPROP_SOURCE
, source
);
1527 verify(!zhp
->zfs_props_table
||
1528 zhp
->zfs_props_table
[prop
] == B_TRUE
);
1529 if ((value
= (char *)zfs_prop_default_string(prop
)) == NULL
)
1538 * Internal function for getting a numeric property. Both zfs_prop_get() and
1539 * zfs_prop_get_int() are built using this interface.
1541 * Certain properties can be overridden using 'mount -o'. In this case, scan
1542 * the contents of the /etc/mnttab entry, searching for the appropriate options.
1543 * If they differ from the on-disk values, report the current values and mark
1544 * the source "temporary".
1547 get_numeric_property(zfs_handle_t
*zhp
, zfs_prop_t prop
, zprop_source_t
*src
,
1548 char **source
, uint64_t *val
)
1550 zfs_cmd_t zc
= { 0 };
1551 nvlist_t
*zplprops
= NULL
;
1553 char *mntopt_on
= NULL
;
1554 char *mntopt_off
= NULL
;
1559 case ZFS_PROP_ATIME
:
1560 mntopt_on
= MNTOPT_ATIME
;
1561 mntopt_off
= MNTOPT_NOATIME
;
1564 case ZFS_PROP_DEVICES
:
1565 mntopt_on
= MNTOPT_DEVICES
;
1566 mntopt_off
= MNTOPT_NODEVICES
;
1570 mntopt_on
= MNTOPT_EXEC
;
1571 mntopt_off
= MNTOPT_NOEXEC
;
1574 case ZFS_PROP_READONLY
:
1575 mntopt_on
= MNTOPT_RO
;
1576 mntopt_off
= MNTOPT_RW
;
1579 case ZFS_PROP_SETUID
:
1580 mntopt_on
= MNTOPT_SETUID
;
1581 mntopt_off
= MNTOPT_NOSETUID
;
1584 case ZFS_PROP_XATTR
:
1585 mntopt_on
= MNTOPT_XATTR
;
1586 mntopt_off
= MNTOPT_NOXATTR
;
1589 case ZFS_PROP_NBMAND
:
1590 mntopt_on
= MNTOPT_NBMAND
;
1591 mntopt_off
= MNTOPT_NONBMAND
;
1596 * Because looking up the mount options is potentially expensive
1597 * (iterating over all of /etc/mnttab), we defer its calculation until
1598 * we're looking up a property which requires its presence.
1600 if (!zhp
->zfs_mntcheck
&&
1601 (mntopt_on
!= NULL
|| prop
== ZFS_PROP_MOUNTED
)) {
1602 libzfs_handle_t
*hdl
= zhp
->zfs_hdl
;
1603 struct mnttab entry
;
1605 if (libzfs_mnttab_find(hdl
, zhp
->zfs_name
, &entry
) == 0) {
1606 zhp
->zfs_mntopts
= zfs_strdup(hdl
,
1608 if (zhp
->zfs_mntopts
== NULL
)
1612 zhp
->zfs_mntcheck
= B_TRUE
;
1615 if (zhp
->zfs_mntopts
== NULL
)
1616 mnt
.mnt_mntopts
= "";
1618 mnt
.mnt_mntopts
= zhp
->zfs_mntopts
;
1621 case ZFS_PROP_ATIME
:
1622 case ZFS_PROP_DEVICES
:
1624 case ZFS_PROP_READONLY
:
1625 case ZFS_PROP_SETUID
:
1626 case ZFS_PROP_XATTR
:
1627 case ZFS_PROP_NBMAND
:
1628 *val
= getprop_uint64(zhp
, prop
, source
);
1630 if (hasmntopt(&mnt
, mntopt_on
) && !*val
) {
1633 *src
= ZPROP_SRC_TEMPORARY
;
1634 } else if (hasmntopt(&mnt
, mntopt_off
) && *val
) {
1637 *src
= ZPROP_SRC_TEMPORARY
;
1641 case ZFS_PROP_CANMOUNT
:
1642 *val
= getprop_uint64(zhp
, prop
, source
);
1643 if (*val
!= ZFS_CANMOUNT_ON
)
1644 *source
= zhp
->zfs_name
;
1646 *source
= ""; /* default */
1649 case ZFS_PROP_QUOTA
:
1650 case ZFS_PROP_REFQUOTA
:
1651 case ZFS_PROP_RESERVATION
:
1652 case ZFS_PROP_REFRESERVATION
:
1653 *val
= getprop_uint64(zhp
, prop
, source
);
1655 *source
= ""; /* default */
1657 *source
= zhp
->zfs_name
;
1660 case ZFS_PROP_MOUNTED
:
1661 *val
= (zhp
->zfs_mntopts
!= NULL
);
1664 case ZFS_PROP_NUMCLONES
:
1665 *val
= zhp
->zfs_dmustats
.dds_num_clones
;
1668 case ZFS_PROP_VERSION
:
1669 case ZFS_PROP_NORMALIZE
:
1670 case ZFS_PROP_UTF8ONLY
:
1672 if (!zfs_prop_valid_for_type(prop
, zhp
->zfs_head_type
) ||
1673 zcmd_alloc_dst_nvlist(zhp
->zfs_hdl
, &zc
, 0) != 0)
1675 (void) strlcpy(zc
.zc_name
, zhp
->zfs_name
, sizeof (zc
.zc_name
));
1676 if (zfs_ioctl(zhp
->zfs_hdl
, ZFS_IOC_OBJSET_ZPLPROPS
, &zc
)) {
1677 zcmd_free_nvlists(&zc
);
1680 if (zcmd_read_dst_nvlist(zhp
->zfs_hdl
, &zc
, &zplprops
) != 0 ||
1681 nvlist_lookup_uint64(zplprops
, zfs_prop_to_name(prop
),
1683 zcmd_free_nvlists(&zc
);
1687 nvlist_free(zplprops
);
1688 zcmd_free_nvlists(&zc
);
1692 switch (zfs_prop_get_type(prop
)) {
1693 case PROP_TYPE_NUMBER
:
1694 case PROP_TYPE_INDEX
:
1695 *val
= getprop_uint64(zhp
, prop
, source
);
1697 * If we tried to use a default value for a
1698 * readonly property, it means that it was not
1699 * present; return an error.
1701 if (zfs_prop_readonly(prop
) &&
1702 *source
&& (*source
)[0] == '\0') {
1707 case PROP_TYPE_STRING
:
1709 zfs_error_aux(zhp
->zfs_hdl
, dgettext(TEXT_DOMAIN
,
1710 "cannot get non-numeric property"));
1711 return (zfs_error(zhp
->zfs_hdl
, EZFS_BADPROP
,
1712 dgettext(TEXT_DOMAIN
, "internal error")));
1720 * Calculate the source type, given the raw source string.
1723 get_source(zfs_handle_t
*zhp
, zprop_source_t
*srctype
, char *source
,
1724 char *statbuf
, size_t statlen
)
1726 if (statbuf
== NULL
|| *srctype
== ZPROP_SRC_TEMPORARY
)
1729 if (source
== NULL
) {
1730 *srctype
= ZPROP_SRC_NONE
;
1731 } else if (source
[0] == '\0') {
1732 *srctype
= ZPROP_SRC_DEFAULT
;
1734 if (strcmp(source
, zhp
->zfs_name
) == 0) {
1735 *srctype
= ZPROP_SRC_LOCAL
;
1737 (void) strlcpy(statbuf
, source
, statlen
);
1738 *srctype
= ZPROP_SRC_INHERITED
;
1745 * Retrieve a property from the given object. If 'literal' is specified, then
1746 * numbers are left as exact values. Otherwise, numbers are converted to a
1747 * human-readable form.
1749 * Returns 0 on success, or -1 on error.
1752 zfs_prop_get(zfs_handle_t
*zhp
, zfs_prop_t prop
, char *propbuf
, size_t proplen
,
1753 zprop_source_t
*src
, char *statbuf
, size_t statlen
, boolean_t literal
)
1755 char *source
= NULL
;
1761 * Check to see if this property applies to our object
1763 if (!zfs_prop_valid_for_type(prop
, zhp
->zfs_type
))
1767 *src
= ZPROP_SRC_NONE
;
1770 case ZFS_PROP_CREATION
:
1772 * 'creation' is a time_t stored in the statistics. We convert
1773 * this into a string unless 'literal' is specified.
1776 val
= getprop_uint64(zhp
, prop
, &source
);
1777 time_t time
= (time_t)val
;
1781 localtime_r(&time
, &t
) == NULL
||
1782 strftime(propbuf
, proplen
, "%a %b %e %k:%M %Y",
1784 (void) snprintf(propbuf
, proplen
, "%llu", val
);
1788 case ZFS_PROP_MOUNTPOINT
:
1790 * Getting the precise mountpoint can be tricky.
1792 * - for 'none' or 'legacy', return those values.
1793 * - for inherited mountpoints, we want to take everything
1794 * after our ancestor and append it to the inherited value.
1796 * If the pool has an alternate root, we want to prepend that
1797 * root to any values we return.
1800 str
= getprop_string(zhp
, prop
, &source
);
1802 if (str
[0] == '/') {
1803 char buf
[MAXPATHLEN
];
1805 const char *relpath
= zhp
->zfs_name
+ strlen(source
);
1807 if (relpath
[0] == '/')
1810 if ((zpool_get_prop(zhp
->zpool_hdl
,
1811 ZPOOL_PROP_ALTROOT
, buf
, MAXPATHLEN
, NULL
)) ||
1812 (strcmp(root
, "-") == 0))
1815 * Special case an alternate root of '/'. This will
1816 * avoid having multiple leading slashes in the
1819 if (strcmp(root
, "/") == 0)
1823 * If the mountpoint is '/' then skip over this
1824 * if we are obtaining either an alternate root or
1825 * an inherited mountpoint.
1827 if (str
[1] == '\0' && (root
[0] != '\0' ||
1828 relpath
[0] != '\0'))
1831 if (relpath
[0] == '\0')
1832 (void) snprintf(propbuf
, proplen
, "%s%s",
1835 (void) snprintf(propbuf
, proplen
, "%s%s%s%s",
1836 root
, str
, relpath
[0] == '@' ? "" : "/",
1839 /* 'legacy' or 'none' */
1840 (void) strlcpy(propbuf
, str
, proplen
);
1845 case ZFS_PROP_ORIGIN
:
1846 (void) strlcpy(propbuf
, getprop_string(zhp
, prop
, &source
),
1849 * If there is no parent at all, return failure to indicate that
1850 * it doesn't apply to this dataset.
1852 if (propbuf
[0] == '\0')
1856 case ZFS_PROP_QUOTA
:
1857 case ZFS_PROP_REFQUOTA
:
1858 case ZFS_PROP_RESERVATION
:
1859 case ZFS_PROP_REFRESERVATION
:
1861 if (get_numeric_property(zhp
, prop
, src
, &source
, &val
) != 0)
1865 * If quota or reservation is 0, we translate this into 'none'
1866 * (unless literal is set), and indicate that it's the default
1867 * value. Otherwise, we print the number nicely and indicate
1868 * that its set locally.
1872 (void) strlcpy(propbuf
, "0", proplen
);
1874 (void) strlcpy(propbuf
, "none", proplen
);
1877 (void) snprintf(propbuf
, proplen
, "%llu",
1880 zfs_nicenum(val
, propbuf
, proplen
);
1884 case ZFS_PROP_COMPRESSRATIO
:
1885 if (get_numeric_property(zhp
, prop
, src
, &source
, &val
) != 0)
1887 (void) snprintf(propbuf
, proplen
, "%lld.%02lldx", (longlong_t
)
1888 val
/ 100, (longlong_t
)val
% 100);
1892 switch (zhp
->zfs_type
) {
1893 case ZFS_TYPE_FILESYSTEM
:
1896 case ZFS_TYPE_VOLUME
:
1899 case ZFS_TYPE_SNAPSHOT
:
1905 (void) snprintf(propbuf
, proplen
, "%s", str
);
1908 case ZFS_PROP_MOUNTED
:
1910 * The 'mounted' property is a pseudo-property that described
1911 * whether the filesystem is currently mounted. Even though
1912 * it's a boolean value, the typical values of "on" and "off"
1913 * don't make sense, so we translate to "yes" and "no".
1915 if (get_numeric_property(zhp
, ZFS_PROP_MOUNTED
,
1916 src
, &source
, &val
) != 0)
1919 (void) strlcpy(propbuf
, "yes", proplen
);
1921 (void) strlcpy(propbuf
, "no", proplen
);
1926 * The 'name' property is a pseudo-property derived from the
1927 * dataset name. It is presented as a real property to simplify
1930 (void) strlcpy(propbuf
, zhp
->zfs_name
, proplen
);
1934 switch (zfs_prop_get_type(prop
)) {
1935 case PROP_TYPE_NUMBER
:
1936 if (get_numeric_property(zhp
, prop
, src
,
1937 &source
, &val
) != 0)
1940 (void) snprintf(propbuf
, proplen
, "%llu",
1943 zfs_nicenum(val
, propbuf
, proplen
);
1946 case PROP_TYPE_STRING
:
1947 (void) strlcpy(propbuf
,
1948 getprop_string(zhp
, prop
, &source
), proplen
);
1951 case PROP_TYPE_INDEX
:
1952 if (get_numeric_property(zhp
, prop
, src
,
1953 &source
, &val
) != 0)
1955 if (zfs_prop_index_to_string(prop
, val
, &strval
) != 0)
1957 (void) strlcpy(propbuf
, strval
, proplen
);
1965 get_source(zhp
, src
, source
, statbuf
, statlen
);
1971 * Utility function to get the given numeric property. Does no validation that
1972 * the given property is the appropriate type; should only be used with
1973 * hard-coded property types.
1976 zfs_prop_get_int(zfs_handle_t
*zhp
, zfs_prop_t prop
)
1981 (void) get_numeric_property(zhp
, prop
, NULL
, &source
, &val
);
1987 zfs_prop_set_int(zfs_handle_t
*zhp
, zfs_prop_t prop
, uint64_t val
)
1991 (void) snprintf(buf
, sizeof (buf
), "%llu", (longlong_t
)val
);
1992 return (zfs_prop_set(zhp
, zfs_prop_to_name(prop
), buf
));
1996 * Similar to zfs_prop_get(), but returns the value as an integer.
1999 zfs_prop_get_numeric(zfs_handle_t
*zhp
, zfs_prop_t prop
, uint64_t *value
,
2000 zprop_source_t
*src
, char *statbuf
, size_t statlen
)
2005 * Check to see if this property applies to our object
2007 if (!zfs_prop_valid_for_type(prop
, zhp
->zfs_type
)) {
2008 return (zfs_error_fmt(zhp
->zfs_hdl
, EZFS_PROPTYPE
,
2009 dgettext(TEXT_DOMAIN
, "cannot get property '%s'"),
2010 zfs_prop_to_name(prop
)));
2014 *src
= ZPROP_SRC_NONE
;
2016 if (get_numeric_property(zhp
, prop
, src
, &source
, value
) != 0)
2019 get_source(zhp
, src
, source
, statbuf
, statlen
);
2025 idmap_id_to_numeric_domain_rid(uid_t id
, boolean_t isuser
,
2026 char **domainp
, idmap_rid_t
*ridp
)
2028 idmap_handle_t
*idmap_hdl
= NULL
;
2029 idmap_get_handle_t
*get_hdl
= NULL
;
2033 if (idmap_init(&idmap_hdl
) != IDMAP_SUCCESS
)
2035 if (idmap_get_create(idmap_hdl
, &get_hdl
) != IDMAP_SUCCESS
)
2039 err
= idmap_get_sidbyuid(get_hdl
, id
,
2040 IDMAP_REQ_FLG_USE_CACHE
, domainp
, ridp
, &status
);
2042 err
= idmap_get_sidbygid(get_hdl
, id
,
2043 IDMAP_REQ_FLG_USE_CACHE
, domainp
, ridp
, &status
);
2045 if (err
== IDMAP_SUCCESS
&&
2046 idmap_get_mappings(get_hdl
) == IDMAP_SUCCESS
&&
2047 status
== IDMAP_SUCCESS
)
2053 idmap_get_destroy(get_hdl
);
2055 (void) idmap_fini(idmap_hdl
);
2060 * convert the propname into parameters needed by kernel
2061 * Eg: userquota@ahrens -> ZFS_PROP_USERQUOTA, "", 126829
2062 * Eg: userused@matt@domain -> ZFS_PROP_USERUSED, "S-1-123-456", 789
2065 userquota_propname_decode(const char *propname
, boolean_t zoned
,
2066 zfs_userquota_prop_t
*typep
, char *domain
, int domainlen
, uint64_t *ridp
)
2068 zfs_userquota_prop_t type
;
2070 char *numericsid
= NULL
;
2075 /* Figure out the property type ({user|group}{quota|space}) */
2076 for (type
= 0; type
< ZFS_NUM_USERQUOTA_PROPS
; type
++) {
2077 if (strncmp(propname
, zfs_userquota_prop_prefixes
[type
],
2078 strlen(zfs_userquota_prop_prefixes
[type
])) == 0)
2081 if (type
== ZFS_NUM_USERQUOTA_PROPS
)
2085 isuser
= (type
== ZFS_PROP_USERQUOTA
||
2086 type
== ZFS_PROP_USERUSED
);
2088 cp
= strchr(propname
, '@') + 1;
2090 if (strchr(cp
, '@')) {
2092 * It's a SID name (eg "user@domain") that needs to be
2093 * turned into S-1-domainID-RID.
2095 directory_error_t e
;
2096 if (zoned
&& getzoneid() == GLOBAL_ZONEID
)
2099 e
= directory_sid_from_user_name(NULL
,
2102 e
= directory_sid_from_group_name(NULL
,
2106 directory_error_free(e
);
2109 if (numericsid
== NULL
)
2112 /* will be further decoded below */
2115 if (strncmp(cp
, "S-1-", 4) == 0) {
2116 /* It's a numeric SID (eg "S-1-234-567-89") */
2117 (void) strlcpy(domain
, cp
, domainlen
);
2118 cp
= strrchr(domain
, '-');
2123 *ridp
= strtoull(cp
, &end
, 10);
2128 if (errno
!= 0 || *end
!= '\0')
2130 } else if (!isdigit(*cp
)) {
2132 * It's a user/group name (eg "user") that needs to be
2133 * turned into a uid/gid
2135 if (zoned
&& getzoneid() == GLOBAL_ZONEID
)
2151 /* It's a user/group ID (eg "12345"). */
2152 uid_t id
= strtoul(cp
, &end
, 10);
2159 /* It's an ephemeral ID. */
2160 if (idmap_id_to_numeric_domain_rid(id
, isuser
,
2161 &mapdomain
, &rid
) != 0)
2163 (void) strlcpy(domain
, mapdomain
, domainlen
);
2170 ASSERT3P(numericsid
, ==, NULL
);
2175 zfs_prop_get_userquota_common(zfs_handle_t
*zhp
, const char *propname
,
2176 uint64_t *propvalue
, zfs_userquota_prop_t
*typep
)
2179 zfs_cmd_t zc
= { 0 };
2181 (void) strncpy(zc
.zc_name
, zhp
->zfs_name
, sizeof (zc
.zc_name
));
2183 err
= userquota_propname_decode(propname
,
2184 zfs_prop_get_int(zhp
, ZFS_PROP_ZONED
),
2185 typep
, zc
.zc_value
, sizeof (zc
.zc_value
), &zc
.zc_guid
);
2186 zc
.zc_objset_type
= *typep
;
2190 err
= ioctl(zhp
->zfs_hdl
->libzfs_fd
, ZFS_IOC_USERSPACE_ONE
, &zc
);
2194 *propvalue
= zc
.zc_cookie
;
2199 zfs_prop_get_userquota_int(zfs_handle_t
*zhp
, const char *propname
,
2200 uint64_t *propvalue
)
2202 zfs_userquota_prop_t type
;
2204 return (zfs_prop_get_userquota_common(zhp
, propname
, propvalue
,
2209 zfs_prop_get_userquota(zfs_handle_t
*zhp
, const char *propname
,
2210 char *propbuf
, int proplen
, boolean_t literal
)
2214 zfs_userquota_prop_t type
;
2216 err
= zfs_prop_get_userquota_common(zhp
, propname
, &propvalue
,
2223 (void) snprintf(propbuf
, proplen
, "%llu", propvalue
);
2224 } else if (propvalue
== 0 &&
2225 (type
== ZFS_PROP_USERQUOTA
|| type
== ZFS_PROP_GROUPQUOTA
)) {
2226 (void) strlcpy(propbuf
, "none", proplen
);
2228 zfs_nicenum(propvalue
, propbuf
, proplen
);
2234 * Returns the name of the given zfs handle.
2237 zfs_get_name(const zfs_handle_t
*zhp
)
2239 return (zhp
->zfs_name
);
2243 * Returns the type of the given zfs handle.
2246 zfs_get_type(const zfs_handle_t
*zhp
)
2248 return (zhp
->zfs_type
);
2252 zfs_do_list_ioctl(zfs_handle_t
*zhp
, int arg
, zfs_cmd_t
*zc
)
2255 uint64_t orig_cookie
;
2257 orig_cookie
= zc
->zc_cookie
;
2259 (void) strlcpy(zc
->zc_name
, zhp
->zfs_name
, sizeof (zc
->zc_name
));
2260 rc
= ioctl(zhp
->zfs_hdl
->libzfs_fd
, arg
, zc
);
2265 /* expand nvlist memory and try again */
2266 if (zcmd_expand_dst_nvlist(zhp
->zfs_hdl
, zc
) != 0) {
2267 zcmd_free_nvlists(zc
);
2270 zc
->zc_cookie
= orig_cookie
;
2273 * An errno value of ESRCH indicates normal completion.
2274 * If ENOENT is returned, then the underlying dataset
2275 * has been removed since we obtained the handle.
2282 rc
= zfs_standard_error(zhp
->zfs_hdl
, errno
,
2283 dgettext(TEXT_DOMAIN
,
2284 "cannot iterate filesystems"));
2292 * Iterate over all child filesystems
2295 zfs_iter_filesystems(zfs_handle_t
*zhp
, zfs_iter_f func
, void *data
)
2297 zfs_cmd_t zc
= { 0 };
2301 if (zhp
->zfs_type
!= ZFS_TYPE_FILESYSTEM
)
2304 if (zcmd_alloc_dst_nvlist(zhp
->zfs_hdl
, &zc
, 0) != 0)
2307 while ((ret
= zfs_do_list_ioctl(zhp
, ZFS_IOC_DATASET_LIST_NEXT
,
2310 * Silently ignore errors, as the only plausible explanation is
2311 * that the pool has since been removed.
2313 if ((nzhp
= make_dataset_handle_zc(zhp
->zfs_hdl
,
2318 if ((ret
= func(nzhp
, data
)) != 0) {
2319 zcmd_free_nvlists(&zc
);
2323 zcmd_free_nvlists(&zc
);
2324 return ((ret
< 0) ? ret
: 0);
2328 * Iterate over all snapshots
2331 zfs_iter_snapshots(zfs_handle_t
*zhp
, zfs_iter_f func
, void *data
)
2333 zfs_cmd_t zc
= { 0 };
2337 if (zhp
->zfs_type
== ZFS_TYPE_SNAPSHOT
)
2340 if (zcmd_alloc_dst_nvlist(zhp
->zfs_hdl
, &zc
, 0) != 0)
2342 while ((ret
= zfs_do_list_ioctl(zhp
, ZFS_IOC_SNAPSHOT_LIST_NEXT
,
2345 if ((nzhp
= make_dataset_handle_zc(zhp
->zfs_hdl
,
2350 if ((ret
= func(nzhp
, data
)) != 0) {
2351 zcmd_free_nvlists(&zc
);
2355 zcmd_free_nvlists(&zc
);
2356 return ((ret
< 0) ? ret
: 0);
2360 * Iterate over all children, snapshots and filesystems
2363 zfs_iter_children(zfs_handle_t
*zhp
, zfs_iter_f func
, void *data
)
2367 if ((ret
= zfs_iter_filesystems(zhp
, func
, data
)) != 0)
2370 return (zfs_iter_snapshots(zhp
, func
, data
));
2374 * Given a complete name, return just the portion that refers to the parent.
2375 * Can return NULL if this is a pool.
2378 parent_name(const char *path
, char *buf
, size_t buflen
)
2382 if ((loc
= strrchr(path
, '/')) == NULL
)
2385 (void) strncpy(buf
, path
, MIN(buflen
, loc
- path
));
2386 buf
[loc
- path
] = '\0';
2392 * If accept_ancestor is false, then check to make sure that the given path has
2393 * a parent, and that it exists. If accept_ancestor is true, then find the
2394 * closest existing ancestor for the given path. In prefixlen return the
2395 * length of already existing prefix of the given path. We also fetch the
2396 * 'zoned' property, which is used to validate property settings when creating
2400 check_parents(libzfs_handle_t
*hdl
, const char *path
, uint64_t *zoned
,
2401 boolean_t accept_ancestor
, int *prefixlen
)
2403 zfs_cmd_t zc
= { 0 };
2404 char parent
[ZFS_MAXNAMELEN
];
2409 (void) snprintf(errbuf
, sizeof (errbuf
),
2410 dgettext(TEXT_DOMAIN
, "cannot create '%s'"), path
);
2412 /* get parent, and check to see if this is just a pool */
2413 if (parent_name(path
, parent
, sizeof (parent
)) != 0) {
2414 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
2415 "missing dataset name"));
2416 return (zfs_error(hdl
, EZFS_INVALIDNAME
, errbuf
));
2419 /* check to see if the pool exists */
2420 if ((slash
= strchr(parent
, '/')) == NULL
)
2421 slash
= parent
+ strlen(parent
);
2422 (void) strncpy(zc
.zc_name
, parent
, slash
- parent
);
2423 zc
.zc_name
[slash
- parent
] = '\0';
2424 if (ioctl(hdl
->libzfs_fd
, ZFS_IOC_OBJSET_STATS
, &zc
) != 0 &&
2426 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
2427 "no such pool '%s'"), zc
.zc_name
);
2428 return (zfs_error(hdl
, EZFS_NOENT
, errbuf
));
2431 /* check to see if the parent dataset exists */
2432 while ((zhp
= make_dataset_handle(hdl
, parent
)) == NULL
) {
2433 if (errno
== ENOENT
&& accept_ancestor
) {
2435 * Go deeper to find an ancestor, give up on top level.
2437 if (parent_name(parent
, parent
, sizeof (parent
)) != 0) {
2438 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
2439 "no such pool '%s'"), zc
.zc_name
);
2440 return (zfs_error(hdl
, EZFS_NOENT
, errbuf
));
2442 } else if (errno
== ENOENT
) {
2443 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
2444 "parent does not exist"));
2445 return (zfs_error(hdl
, EZFS_NOENT
, errbuf
));
2447 return (zfs_standard_error(hdl
, errno
, errbuf
));
2450 *zoned
= zfs_prop_get_int(zhp
, ZFS_PROP_ZONED
);
2451 /* we are in a non-global zone, but parent is in the global zone */
2452 if (getzoneid() != GLOBAL_ZONEID
&& !(*zoned
)) {
2453 (void) zfs_standard_error(hdl
, EPERM
, errbuf
);
2458 /* make sure parent is a filesystem */
2459 if (zfs_get_type(zhp
) != ZFS_TYPE_FILESYSTEM
) {
2460 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
2461 "parent is not a filesystem"));
2462 (void) zfs_error(hdl
, EZFS_BADTYPE
, errbuf
);
2468 if (prefixlen
!= NULL
)
2469 *prefixlen
= strlen(parent
);
2474 * Finds whether the dataset of the given type(s) exists.
2477 zfs_dataset_exists(libzfs_handle_t
*hdl
, const char *path
, zfs_type_t types
)
2481 if (!zfs_validate_name(hdl
, path
, types
, B_FALSE
))
2485 * Try to get stats for the dataset, which will tell us if it exists.
2487 if ((zhp
= make_dataset_handle(hdl
, path
)) != NULL
) {
2488 int ds_type
= zhp
->zfs_type
;
2491 if (types
& ds_type
)
2498 * Given a path to 'target', create all the ancestors between
2499 * the prefixlen portion of the path, and the target itself.
2500 * Fail if the initial prefixlen-ancestor does not already exist.
2503 create_parents(libzfs_handle_t
*hdl
, char *target
, int prefixlen
)
2509 /* make sure prefix exists */
2510 cp
= target
+ prefixlen
;
2512 assert(strchr(cp
, '/') == NULL
);
2513 h
= zfs_open(hdl
, target
, ZFS_TYPE_FILESYSTEM
);
2516 h
= zfs_open(hdl
, target
, ZFS_TYPE_FILESYSTEM
);
2524 * Attempt to create, mount, and share any ancestor filesystems,
2525 * up to the prefixlen-long one.
2527 for (cp
= target
+ prefixlen
+ 1;
2528 cp
= strchr(cp
, '/'); *cp
= '/', cp
++) {
2533 h
= make_dataset_handle(hdl
, target
);
2535 /* it already exists, nothing to do here */
2540 logstr
= hdl
->libzfs_log_str
;
2541 hdl
->libzfs_log_str
= NULL
;
2542 if (zfs_create(hdl
, target
, ZFS_TYPE_FILESYSTEM
,
2544 hdl
->libzfs_log_str
= logstr
;
2545 opname
= dgettext(TEXT_DOMAIN
, "create");
2549 hdl
->libzfs_log_str
= logstr
;
2550 h
= zfs_open(hdl
, target
, ZFS_TYPE_FILESYSTEM
);
2552 opname
= dgettext(TEXT_DOMAIN
, "open");
2556 if (zfs_mount(h
, NULL
, 0) != 0) {
2557 opname
= dgettext(TEXT_DOMAIN
, "mount");
2561 if (zfs_share(h
) != 0) {
2562 opname
= dgettext(TEXT_DOMAIN
, "share");
2572 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
2573 "failed to %s ancestor '%s'"), opname
, target
);
2578 * Creates non-existing ancestors of the given path.
2581 zfs_create_ancestors(libzfs_handle_t
*hdl
, const char *path
)
2588 if (check_parents(hdl
, path
, &zoned
, B_TRUE
, &prefix
) != 0)
2591 if ((path_copy
= strdup(path
)) != NULL
) {
2592 rc
= create_parents(hdl
, path_copy
, prefix
);
2595 if (path_copy
== NULL
|| rc
!= 0)
2602 * Create a new filesystem or volume.
2605 zfs_create(libzfs_handle_t
*hdl
, const char *path
, zfs_type_t type
,
2608 zfs_cmd_t zc
= { 0 };
2611 uint64_t blocksize
= zfs_prop_default_numeric(ZFS_PROP_VOLBLOCKSIZE
);
2615 (void) snprintf(errbuf
, sizeof (errbuf
), dgettext(TEXT_DOMAIN
,
2616 "cannot create '%s'"), path
);
2618 /* validate the path, taking care to note the extended error message */
2619 if (!zfs_validate_name(hdl
, path
, type
, B_TRUE
))
2620 return (zfs_error(hdl
, EZFS_INVALIDNAME
, errbuf
));
2622 /* validate parents exist */
2623 if (check_parents(hdl
, path
, &zoned
, B_FALSE
, NULL
) != 0)
2627 * The failure modes when creating a dataset of a different type over
2628 * one that already exists is a little strange. In particular, if you
2629 * try to create a dataset on top of an existing dataset, the ioctl()
2630 * will return ENOENT, not EEXIST. To prevent this from happening, we
2631 * first try to see if the dataset exists.
2633 (void) strlcpy(zc
.zc_name
, path
, sizeof (zc
.zc_name
));
2634 if (zfs_dataset_exists(hdl
, zc
.zc_name
, ZFS_TYPE_DATASET
)) {
2635 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
2636 "dataset already exists"));
2637 return (zfs_error(hdl
, EZFS_EXISTS
, errbuf
));
2640 if (type
== ZFS_TYPE_VOLUME
)
2641 zc
.zc_objset_type
= DMU_OST_ZVOL
;
2643 zc
.zc_objset_type
= DMU_OST_ZFS
;
2645 if (props
&& (props
= zfs_valid_proplist(hdl
, type
, props
,
2646 zoned
, NULL
, errbuf
)) == 0)
2649 if (type
== ZFS_TYPE_VOLUME
) {
2651 * If we are creating a volume, the size and block size must
2652 * satisfy a few restraints. First, the blocksize must be a
2653 * valid block size between SPA_{MIN,MAX}BLOCKSIZE. Second, the
2654 * volsize must be a multiple of the block size, and cannot be
2657 if (props
== NULL
|| nvlist_lookup_uint64(props
,
2658 zfs_prop_to_name(ZFS_PROP_VOLSIZE
), &size
) != 0) {
2660 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
2661 "missing volume size"));
2662 return (zfs_error(hdl
, EZFS_BADPROP
, errbuf
));
2665 if ((ret
= nvlist_lookup_uint64(props
,
2666 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE
),
2667 &blocksize
)) != 0) {
2668 if (ret
== ENOENT
) {
2669 blocksize
= zfs_prop_default_numeric(
2670 ZFS_PROP_VOLBLOCKSIZE
);
2673 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
2674 "missing volume block size"));
2675 return (zfs_error(hdl
, EZFS_BADPROP
, errbuf
));
2681 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
2682 "volume size cannot be zero"));
2683 return (zfs_error(hdl
, EZFS_BADPROP
, errbuf
));
2686 if (size
% blocksize
!= 0) {
2688 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
2689 "volume size must be a multiple of volume block "
2691 return (zfs_error(hdl
, EZFS_BADPROP
, errbuf
));
2695 if (props
&& zcmd_write_src_nvlist(hdl
, &zc
, props
) != 0)
2699 /* create the dataset */
2700 ret
= zfs_ioctl(hdl
, ZFS_IOC_CREATE
, &zc
);
2702 if (ret
== 0 && type
== ZFS_TYPE_VOLUME
) {
2703 ret
= zvol_create_link(hdl
, path
);
2705 (void) zfs_standard_error(hdl
, errno
,
2706 dgettext(TEXT_DOMAIN
,
2707 "Volume successfully created, but device links "
2708 "were not created"));
2709 zcmd_free_nvlists(&zc
);
2714 zcmd_free_nvlists(&zc
);
2716 /* check for failure */
2718 char parent
[ZFS_MAXNAMELEN
];
2719 (void) parent_name(path
, parent
, sizeof (parent
));
2723 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
2724 "no such parent '%s'"), parent
);
2725 return (zfs_error(hdl
, EZFS_NOENT
, errbuf
));
2728 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
2729 "parent '%s' is not a filesystem"), parent
);
2730 return (zfs_error(hdl
, EZFS_BADTYPE
, errbuf
));
2733 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
2734 "volume block size must be power of 2 from "
2736 (uint_t
)SPA_MINBLOCKSIZE
,
2737 (uint_t
)SPA_MAXBLOCKSIZE
>> 10);
2739 return (zfs_error(hdl
, EZFS_BADPROP
, errbuf
));
2742 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
2743 "pool must be upgraded to set this "
2744 "property or value"));
2745 return (zfs_error(hdl
, EZFS_BADVERSION
, errbuf
));
2749 * This platform can't address a volume this big.
2751 if (type
== ZFS_TYPE_VOLUME
)
2752 return (zfs_error(hdl
, EZFS_VOLTOOBIG
,
2757 return (zfs_standard_error(hdl
, errno
, errbuf
));
2765 * Destroys the given dataset. The caller must make sure that the filesystem
2766 * isn't mounted, and that there are no active dependents.
2769 zfs_destroy(zfs_handle_t
*zhp
, boolean_t defer
)
2771 zfs_cmd_t zc
= { 0 };
2773 (void) strlcpy(zc
.zc_name
, zhp
->zfs_name
, sizeof (zc
.zc_name
));
2775 if (ZFS_IS_VOLUME(zhp
)) {
2777 * If user doesn't have permissions to unshare volume, then
2778 * abort the request. This would only happen for a
2779 * non-privileged user.
2781 if (zfs_unshare_iscsi(zhp
) != 0) {
2785 if (zvol_remove_link(zhp
->zfs_hdl
, zhp
->zfs_name
) != 0)
2788 zc
.zc_objset_type
= DMU_OST_ZVOL
;
2790 zc
.zc_objset_type
= DMU_OST_ZFS
;
2793 zc
.zc_defer_destroy
= defer
;
2794 if (zfs_ioctl(zhp
->zfs_hdl
, ZFS_IOC_DESTROY
, &zc
) != 0) {
2795 return (zfs_standard_error_fmt(zhp
->zfs_hdl
, errno
,
2796 dgettext(TEXT_DOMAIN
, "cannot destroy '%s'"),
2800 remove_mountpoint(zhp
);
2805 struct destroydata
{
2812 zfs_remove_link_cb(zfs_handle_t
*zhp
, void *arg
)
2814 struct destroydata
*dd
= arg
;
2816 char name
[ZFS_MAXNAMELEN
];
2817 boolean_t closezhp
= dd
->closezhp
;
2820 (void) strlcpy(name
, zhp
->zfs_name
, sizeof (name
));
2821 (void) strlcat(name
, "@", sizeof (name
));
2822 (void) strlcat(name
, dd
->snapname
, sizeof (name
));
2824 szhp
= make_dataset_handle(zhp
->zfs_hdl
, name
);
2826 dd
->gotone
= B_TRUE
;
2830 if (zhp
->zfs_type
== ZFS_TYPE_VOLUME
) {
2831 (void) zvol_remove_link(zhp
->zfs_hdl
, name
);
2833 * NB: this is simply a best-effort. We don't want to
2834 * return an error, because then we wouldn't visit all
2839 dd
->closezhp
= B_TRUE
;
2840 rv
= zfs_iter_filesystems(zhp
, zfs_remove_link_cb
, arg
);
2847 * Destroys all snapshots with the given name in zhp & descendants.
2850 zfs_destroy_snaps(zfs_handle_t
*zhp
, char *snapname
, boolean_t defer
)
2852 zfs_cmd_t zc
= { 0 };
2854 struct destroydata dd
= { 0 };
2856 dd
.snapname
= snapname
;
2857 (void) zfs_remove_link_cb(zhp
, &dd
);
2860 return (zfs_standard_error_fmt(zhp
->zfs_hdl
, ENOENT
,
2861 dgettext(TEXT_DOMAIN
, "cannot destroy '%s@%s'"),
2862 zhp
->zfs_name
, snapname
));
2865 (void) strlcpy(zc
.zc_name
, zhp
->zfs_name
, sizeof (zc
.zc_name
));
2866 (void) strlcpy(zc
.zc_value
, snapname
, sizeof (zc
.zc_value
));
2867 zc
.zc_defer_destroy
= defer
;
2869 ret
= zfs_ioctl(zhp
->zfs_hdl
, ZFS_IOC_DESTROY_SNAPS
, &zc
);
2873 (void) snprintf(errbuf
, sizeof (errbuf
), dgettext(TEXT_DOMAIN
,
2874 "cannot destroy '%s@%s'"), zc
.zc_name
, snapname
);
2878 zfs_error_aux(zhp
->zfs_hdl
, dgettext(TEXT_DOMAIN
,
2879 "snapshot is cloned"));
2880 return (zfs_error(zhp
->zfs_hdl
, EZFS_EXISTS
, errbuf
));
2883 return (zfs_standard_error(zhp
->zfs_hdl
, errno
,
2892 * Clones the given dataset. The target must be of the same type as the source.
2895 zfs_clone(zfs_handle_t
*zhp
, const char *target
, nvlist_t
*props
)
2897 zfs_cmd_t zc
= { 0 };
2898 char parent
[ZFS_MAXNAMELEN
];
2901 libzfs_handle_t
*hdl
= zhp
->zfs_hdl
;
2905 assert(zhp
->zfs_type
== ZFS_TYPE_SNAPSHOT
);
2907 (void) snprintf(errbuf
, sizeof (errbuf
), dgettext(TEXT_DOMAIN
,
2908 "cannot create '%s'"), target
);
2910 /* validate the target name */
2911 if (!zfs_validate_name(hdl
, target
, ZFS_TYPE_FILESYSTEM
, B_TRUE
))
2912 return (zfs_error(hdl
, EZFS_INVALIDNAME
, errbuf
));
2914 /* validate parents exist */
2915 if (check_parents(hdl
, target
, &zoned
, B_FALSE
, NULL
) != 0)
2918 (void) parent_name(target
, parent
, sizeof (parent
));
2921 if (ZFS_IS_VOLUME(zhp
)) {
2922 zc
.zc_objset_type
= DMU_OST_ZVOL
;
2923 type
= ZFS_TYPE_VOLUME
;
2925 zc
.zc_objset_type
= DMU_OST_ZFS
;
2926 type
= ZFS_TYPE_FILESYSTEM
;
2930 if ((props
= zfs_valid_proplist(hdl
, type
, props
, zoned
,
2931 zhp
, errbuf
)) == NULL
)
2934 if (zcmd_write_src_nvlist(hdl
, &zc
, props
) != 0) {
2942 (void) strlcpy(zc
.zc_name
, target
, sizeof (zc
.zc_name
));
2943 (void) strlcpy(zc
.zc_value
, zhp
->zfs_name
, sizeof (zc
.zc_value
));
2944 ret
= zfs_ioctl(zhp
->zfs_hdl
, ZFS_IOC_CREATE
, &zc
);
2946 zcmd_free_nvlists(&zc
);
2953 * The parent doesn't exist. We should have caught this
2954 * above, but there may a race condition that has since
2955 * destroyed the parent.
2957 * At this point, we don't know whether it's the source
2958 * that doesn't exist anymore, or whether the target
2959 * dataset doesn't exist.
2961 zfs_error_aux(zhp
->zfs_hdl
, dgettext(TEXT_DOMAIN
,
2962 "no such parent '%s'"), parent
);
2963 return (zfs_error(zhp
->zfs_hdl
, EZFS_NOENT
, errbuf
));
2966 zfs_error_aux(zhp
->zfs_hdl
, dgettext(TEXT_DOMAIN
,
2967 "source and target pools differ"));
2968 return (zfs_error(zhp
->zfs_hdl
, EZFS_CROSSTARGET
,
2972 return (zfs_standard_error(zhp
->zfs_hdl
, errno
,
2975 } else if (ZFS_IS_VOLUME(zhp
)) {
2976 ret
= zvol_create_link(zhp
->zfs_hdl
, target
);
2982 typedef struct promote_data
{
2983 char cb_mountpoint
[MAXPATHLEN
];
2984 const char *cb_target
;
2985 const char *cb_errbuf
;
2986 uint64_t cb_pivot_txg
;
2990 promote_snap_cb(zfs_handle_t
*zhp
, void *data
)
2992 promote_data_t
*pd
= data
;
2994 char snapname
[MAXPATHLEN
];
2997 /* We don't care about snapshots after the pivot point */
2998 if (zfs_prop_get_int(zhp
, ZFS_PROP_CREATETXG
) > pd
->cb_pivot_txg
) {
3003 /* Remove the device link if it's a zvol. */
3004 if (ZFS_IS_VOLUME(zhp
))
3005 (void) zvol_remove_link(zhp
->zfs_hdl
, zhp
->zfs_name
);
3007 /* Check for conflicting names */
3008 (void) strlcpy(snapname
, pd
->cb_target
, sizeof (snapname
));
3009 (void) strlcat(snapname
, strchr(zhp
->zfs_name
, '@'), sizeof (snapname
));
3010 szhp
= make_dataset_handle(zhp
->zfs_hdl
, snapname
);
3013 zfs_error_aux(zhp
->zfs_hdl
, dgettext(TEXT_DOMAIN
,
3014 "snapshot name '%s' from origin \n"
3015 "conflicts with '%s' from target"),
3016 zhp
->zfs_name
, snapname
);
3017 rv
= zfs_error(zhp
->zfs_hdl
, EZFS_EXISTS
, pd
->cb_errbuf
);
3024 promote_snap_done_cb(zfs_handle_t
*zhp
, void *data
)
3026 promote_data_t
*pd
= data
;
3028 /* We don't care about snapshots after the pivot point */
3029 if (zfs_prop_get_int(zhp
, ZFS_PROP_CREATETXG
) <= pd
->cb_pivot_txg
) {
3030 /* Create the device link if it's a zvol. */
3031 if (ZFS_IS_VOLUME(zhp
))
3032 (void) zvol_create_link(zhp
->zfs_hdl
, zhp
->zfs_name
);
3040 * Promotes the given clone fs to be the clone parent.
3043 zfs_promote(zfs_handle_t
*zhp
)
3045 libzfs_handle_t
*hdl
= zhp
->zfs_hdl
;
3046 zfs_cmd_t zc
= { 0 };
3047 char parent
[MAXPATHLEN
];
3054 (void) snprintf(errbuf
, sizeof (errbuf
), dgettext(TEXT_DOMAIN
,
3055 "cannot promote '%s'"), zhp
->zfs_name
);
3057 if (zhp
->zfs_type
== ZFS_TYPE_SNAPSHOT
) {
3058 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
3059 "snapshots can not be promoted"));
3060 return (zfs_error(hdl
, EZFS_BADTYPE
, errbuf
));
3063 (void) strlcpy(parent
, zhp
->zfs_dmustats
.dds_origin
, sizeof (parent
));
3064 if (parent
[0] == '\0') {
3065 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
3066 "not a cloned filesystem"));
3067 return (zfs_error(hdl
, EZFS_BADTYPE
, errbuf
));
3069 cp
= strchr(parent
, '@');
3072 /* Walk the snapshots we will be moving */
3073 pzhp
= zfs_open(hdl
, zhp
->zfs_dmustats
.dds_origin
, ZFS_TYPE_SNAPSHOT
);
3076 pd
.cb_pivot_txg
= zfs_prop_get_int(pzhp
, ZFS_PROP_CREATETXG
);
3078 pd
.cb_target
= zhp
->zfs_name
;
3079 pd
.cb_errbuf
= errbuf
;
3080 pzhp
= zfs_open(hdl
, parent
, ZFS_TYPE_DATASET
);
3083 (void) zfs_prop_get(pzhp
, ZFS_PROP_MOUNTPOINT
, pd
.cb_mountpoint
,
3084 sizeof (pd
.cb_mountpoint
), NULL
, NULL
, 0, FALSE
);
3085 ret
= zfs_iter_snapshots(pzhp
, promote_snap_cb
, &pd
);
3091 /* issue the ioctl */
3092 (void) strlcpy(zc
.zc_value
, zhp
->zfs_dmustats
.dds_origin
,
3093 sizeof (zc
.zc_value
));
3094 (void) strlcpy(zc
.zc_name
, zhp
->zfs_name
, sizeof (zc
.zc_name
));
3095 ret
= zfs_ioctl(hdl
, ZFS_IOC_PROMOTE
, &zc
);
3098 int save_errno
= errno
;
3100 (void) zfs_iter_snapshots(pzhp
, promote_snap_done_cb
, &pd
);
3103 switch (save_errno
) {
3106 * There is a conflicting snapshot name. We
3107 * should have caught this above, but they could
3108 * have renamed something in the mean time.
3110 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
3111 "conflicting snapshot name from parent '%s'"),
3113 return (zfs_error(hdl
, EZFS_EXISTS
, errbuf
));
3116 return (zfs_standard_error(hdl
, save_errno
, errbuf
));
3119 (void) zfs_iter_snapshots(zhp
, promote_snap_done_cb
, &pd
);
3127 const char *cd_snapname
;
3132 zfs_create_link_cb(zfs_handle_t
*zhp
, void *arg
)
3134 struct createdata
*cd
= arg
;
3137 if (zhp
->zfs_type
== ZFS_TYPE_VOLUME
) {
3138 char name
[MAXPATHLEN
];
3140 (void) strlcpy(name
, zhp
->zfs_name
, sizeof (name
));
3141 (void) strlcat(name
, "@", sizeof (name
));
3142 (void) strlcat(name
, cd
->cd_snapname
, sizeof (name
));
3143 (void) zvol_create_link_common(zhp
->zfs_hdl
, name
,
3146 * NB: this is simply a best-effort. We don't want to
3147 * return an error, because then we wouldn't visit all
3152 ret
= zfs_iter_filesystems(zhp
, zfs_create_link_cb
, cd
);
3160 * Takes a snapshot of the given dataset.
3163 zfs_snapshot(libzfs_handle_t
*hdl
, const char *path
, boolean_t recursive
,
3167 char parent
[ZFS_MAXNAMELEN
];
3169 zfs_cmd_t zc
= { 0 };
3173 (void) snprintf(errbuf
, sizeof (errbuf
), dgettext(TEXT_DOMAIN
,
3174 "cannot snapshot '%s'"), path
);
3176 /* validate the target name */
3177 if (!zfs_validate_name(hdl
, path
, ZFS_TYPE_SNAPSHOT
, B_TRUE
))
3178 return (zfs_error(hdl
, EZFS_INVALIDNAME
, errbuf
));
3181 if ((props
= zfs_valid_proplist(hdl
, ZFS_TYPE_SNAPSHOT
,
3182 props
, B_FALSE
, NULL
, errbuf
)) == NULL
)
3185 if (zcmd_write_src_nvlist(hdl
, &zc
, props
) != 0) {
3193 /* make sure the parent exists and is of the appropriate type */
3194 delim
= strchr(path
, '@');
3195 (void) strncpy(parent
, path
, delim
- path
);
3196 parent
[delim
- path
] = '\0';
3198 if ((zhp
= zfs_open(hdl
, parent
, ZFS_TYPE_FILESYSTEM
|
3199 ZFS_TYPE_VOLUME
)) == NULL
) {
3200 zcmd_free_nvlists(&zc
);
3204 (void) strlcpy(zc
.zc_name
, zhp
->zfs_name
, sizeof (zc
.zc_name
));
3205 (void) strlcpy(zc
.zc_value
, delim
+1, sizeof (zc
.zc_value
));
3206 if (ZFS_IS_VOLUME(zhp
))
3207 zc
.zc_objset_type
= DMU_OST_ZVOL
;
3209 zc
.zc_objset_type
= DMU_OST_ZFS
;
3210 zc
.zc_cookie
= recursive
;
3211 ret
= zfs_ioctl(zhp
->zfs_hdl
, ZFS_IOC_SNAPSHOT
, &zc
);
3213 zcmd_free_nvlists(&zc
);
3216 * if it was recursive, the one that actually failed will be in
3220 (void) snprintf(errbuf
, sizeof (errbuf
), dgettext(TEXT_DOMAIN
,
3221 "cannot create snapshot '%s@%s'"), zc
.zc_name
, zc
.zc_value
);
3223 if (ret
== 0 && recursive
) {
3224 struct createdata cd
;
3226 cd
.cd_snapname
= delim
+ 1;
3227 cd
.cd_ifexists
= B_FALSE
;
3228 (void) zfs_iter_filesystems(zhp
, zfs_create_link_cb
, &cd
);
3230 if (ret
== 0 && zhp
->zfs_type
== ZFS_TYPE_VOLUME
) {
3231 ret
= zvol_create_link(zhp
->zfs_hdl
, path
);
3233 (void) zfs_standard_error(hdl
, errno
,
3234 dgettext(TEXT_DOMAIN
,
3235 "Volume successfully snapshotted, but device links "
3236 "were not created"));
3243 (void) zfs_standard_error(hdl
, errno
, errbuf
);
3251 * Destroy any more recent snapshots. We invoke this callback on any dependents
3252 * of the snapshot first. If the 'cb_dependent' member is non-zero, then this
3253 * is a dependent and we should just destroy it without checking the transaction
3256 typedef struct rollback_data
{
3257 const char *cb_target
; /* the snapshot */
3258 uint64_t cb_create
; /* creation time reference */
3260 boolean_t cb_dependent
;
3265 rollback_destroy(zfs_handle_t
*zhp
, void *data
)
3267 rollback_data_t
*cbp
= data
;
3269 if (!cbp
->cb_dependent
) {
3270 if (strcmp(zhp
->zfs_name
, cbp
->cb_target
) != 0 &&
3271 zfs_get_type(zhp
) == ZFS_TYPE_SNAPSHOT
&&
3272 zfs_prop_get_int(zhp
, ZFS_PROP_CREATETXG
) >
3276 cbp
->cb_dependent
= B_TRUE
;
3277 cbp
->cb_error
|= zfs_iter_dependents(zhp
, B_FALSE
,
3278 rollback_destroy
, cbp
);
3279 cbp
->cb_dependent
= B_FALSE
;
3281 logstr
= zhp
->zfs_hdl
->libzfs_log_str
;
3282 zhp
->zfs_hdl
->libzfs_log_str
= NULL
;
3283 cbp
->cb_error
|= zfs_destroy(zhp
, B_FALSE
);
3284 zhp
->zfs_hdl
->libzfs_log_str
= logstr
;
3287 /* We must destroy this clone; first unmount it */
3288 prop_changelist_t
*clp
;
3290 clp
= changelist_gather(zhp
, ZFS_PROP_NAME
, 0,
3291 cbp
->cb_force
? MS_FORCE
: 0);
3292 if (clp
== NULL
|| changelist_prefix(clp
) != 0) {
3293 cbp
->cb_error
= B_TRUE
;
3297 if (zfs_destroy(zhp
, B_FALSE
) != 0)
3298 cbp
->cb_error
= B_TRUE
;
3300 changelist_remove(clp
, zhp
->zfs_name
);
3301 (void) changelist_postfix(clp
);
3302 changelist_free(clp
);
3310 * Given a dataset, rollback to a specific snapshot, discarding any
3311 * data changes since then and making it the active dataset.
3313 * Any snapshots more recent than the target are destroyed, along with
3317 zfs_rollback(zfs_handle_t
*zhp
, zfs_handle_t
*snap
, boolean_t force
)
3319 rollback_data_t cb
= { 0 };
3321 zfs_cmd_t zc
= { 0 };
3322 boolean_t restore_resv
= 0;
3323 uint64_t old_volsize
, new_volsize
;
3324 zfs_prop_t resv_prop
;
3326 assert(zhp
->zfs_type
== ZFS_TYPE_FILESYSTEM
||
3327 zhp
->zfs_type
== ZFS_TYPE_VOLUME
);
3330 * Destroy all recent snapshots and its dependends.
3332 cb
.cb_force
= force
;
3333 cb
.cb_target
= snap
->zfs_name
;
3334 cb
.cb_create
= zfs_prop_get_int(snap
, ZFS_PROP_CREATETXG
);
3335 (void) zfs_iter_children(zhp
, rollback_destroy
, &cb
);
3341 * Now that we have verified that the snapshot is the latest,
3342 * rollback to the given snapshot.
3345 if (zhp
->zfs_type
== ZFS_TYPE_VOLUME
) {
3346 if (zvol_remove_link(zhp
->zfs_hdl
, zhp
->zfs_name
) != 0)
3348 if (zfs_which_resv_prop(zhp
, &resv_prop
) < 0)
3350 old_volsize
= zfs_prop_get_int(zhp
, ZFS_PROP_VOLSIZE
);
3352 (old_volsize
== zfs_prop_get_int(zhp
, resv_prop
));
3355 (void) strlcpy(zc
.zc_name
, zhp
->zfs_name
, sizeof (zc
.zc_name
));
3357 if (ZFS_IS_VOLUME(zhp
))
3358 zc
.zc_objset_type
= DMU_OST_ZVOL
;
3360 zc
.zc_objset_type
= DMU_OST_ZFS
;
3363 * We rely on zfs_iter_children() to verify that there are no
3364 * newer snapshots for the given dataset. Therefore, we can
3365 * simply pass the name on to the ioctl() call. There is still
3366 * an unlikely race condition where the user has taken a
3367 * snapshot since we verified that this was the most recent.
3370 if ((err
= zfs_ioctl(zhp
->zfs_hdl
, ZFS_IOC_ROLLBACK
, &zc
)) != 0) {
3371 (void) zfs_standard_error_fmt(zhp
->zfs_hdl
, errno
,
3372 dgettext(TEXT_DOMAIN
, "cannot rollback '%s'"),
3378 * For volumes, if the pre-rollback volsize matched the pre-
3379 * rollback reservation and the volsize has changed then set
3380 * the reservation property to the post-rollback volsize.
3381 * Make a new handle since the rollback closed the dataset.
3383 if ((zhp
->zfs_type
== ZFS_TYPE_VOLUME
) &&
3384 (zhp
= make_dataset_handle(zhp
->zfs_hdl
, zhp
->zfs_name
))) {
3385 if (err
= zvol_create_link(zhp
->zfs_hdl
, zhp
->zfs_name
)) {
3390 new_volsize
= zfs_prop_get_int(zhp
, ZFS_PROP_VOLSIZE
);
3391 if (old_volsize
!= new_volsize
)
3392 err
= zfs_prop_set_int(zhp
, resv_prop
,
3401 * Iterate over all dependents for a given dataset. This includes both
3402 * hierarchical dependents (children) and data dependents (snapshots and
3403 * clones). The bulk of the processing occurs in get_dependents() in
3407 zfs_iter_dependents(zfs_handle_t
*zhp
, boolean_t allowrecursion
,
3408 zfs_iter_f func
, void *data
)
3413 zfs_handle_t
*child
;
3416 if (get_dependents(zhp
->zfs_hdl
, allowrecursion
, zhp
->zfs_name
,
3417 &dependents
, &count
) != 0)
3420 for (i
= 0; i
< count
; i
++) {
3421 if ((child
= make_dataset_handle(zhp
->zfs_hdl
,
3422 dependents
[i
])) == NULL
)
3425 if ((ret
= func(child
, data
)) != 0)
3429 for (i
= 0; i
< count
; i
++)
3430 free(dependents
[i
]);
3437 * Renames the given dataset.
3440 zfs_rename(zfs_handle_t
*zhp
, const char *target
, boolean_t recursive
)
3443 zfs_cmd_t zc
= { 0 };
3445 prop_changelist_t
*cl
= NULL
;
3446 zfs_handle_t
*zhrp
= NULL
;
3447 char *parentname
= NULL
;
3448 char parent
[ZFS_MAXNAMELEN
];
3449 libzfs_handle_t
*hdl
= zhp
->zfs_hdl
;
3452 /* if we have the same exact name, just return success */
3453 if (strcmp(zhp
->zfs_name
, target
) == 0)
3456 (void) snprintf(errbuf
, sizeof (errbuf
), dgettext(TEXT_DOMAIN
,
3457 "cannot rename to '%s'"), target
);
3460 * Make sure the target name is valid
3462 if (zhp
->zfs_type
== ZFS_TYPE_SNAPSHOT
) {
3463 if ((strchr(target
, '@') == NULL
) ||
3466 * Snapshot target name is abbreviated,
3467 * reconstruct full dataset name
3469 (void) strlcpy(parent
, zhp
->zfs_name
,
3471 delim
= strchr(parent
, '@');
3472 if (strchr(target
, '@') == NULL
)
3476 (void) strlcat(parent
, target
, sizeof (parent
));
3480 * Make sure we're renaming within the same dataset.
3482 delim
= strchr(target
, '@');
3483 if (strncmp(zhp
->zfs_name
, target
, delim
- target
)
3484 != 0 || zhp
->zfs_name
[delim
- target
] != '@') {
3485 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
3486 "snapshots must be part of same "
3488 return (zfs_error(hdl
, EZFS_CROSSTARGET
,
3492 if (!zfs_validate_name(hdl
, target
, zhp
->zfs_type
, B_TRUE
))
3493 return (zfs_error(hdl
, EZFS_INVALIDNAME
, errbuf
));
3496 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
3497 "recursive rename must be a snapshot"));
3498 return (zfs_error(hdl
, EZFS_BADTYPE
, errbuf
));
3501 if (!zfs_validate_name(hdl
, target
, zhp
->zfs_type
, B_TRUE
))
3502 return (zfs_error(hdl
, EZFS_INVALIDNAME
, errbuf
));
3505 /* validate parents */
3506 if (check_parents(hdl
, target
, &unused
, B_FALSE
, NULL
) != 0)
3509 (void) parent_name(target
, parent
, sizeof (parent
));
3511 /* make sure we're in the same pool */
3512 verify((delim
= strchr(target
, '/')) != NULL
);
3513 if (strncmp(zhp
->zfs_name
, target
, delim
- target
) != 0 ||
3514 zhp
->zfs_name
[delim
- target
] != '/') {
3515 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
3516 "datasets must be within same pool"));
3517 return (zfs_error(hdl
, EZFS_CROSSTARGET
, errbuf
));
3520 /* new name cannot be a child of the current dataset name */
3521 if (strncmp(parent
, zhp
->zfs_name
,
3522 strlen(zhp
->zfs_name
)) == 0) {
3523 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
3524 "New dataset name cannot be a descendent of "
3525 "current dataset name"));
3526 return (zfs_error(hdl
, EZFS_INVALIDNAME
, errbuf
));
3530 (void) snprintf(errbuf
, sizeof (errbuf
),
3531 dgettext(TEXT_DOMAIN
, "cannot rename '%s'"), zhp
->zfs_name
);
3533 if (getzoneid() == GLOBAL_ZONEID
&&
3534 zfs_prop_get_int(zhp
, ZFS_PROP_ZONED
)) {
3535 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
3536 "dataset is used in a non-global zone"));
3537 return (zfs_error(hdl
, EZFS_ZONED
, errbuf
));
3541 struct destroydata dd
;
3543 parentname
= zfs_strdup(zhp
->zfs_hdl
, zhp
->zfs_name
);
3544 if (parentname
== NULL
) {
3548 delim
= strchr(parentname
, '@');
3550 zhrp
= zfs_open(zhp
->zfs_hdl
, parentname
, ZFS_TYPE_DATASET
);
3556 dd
.snapname
= delim
+ 1;
3557 dd
.gotone
= B_FALSE
;
3558 dd
.closezhp
= B_TRUE
;
3560 /* We remove any zvol links prior to renaming them */
3561 ret
= zfs_iter_filesystems(zhrp
, zfs_remove_link_cb
, &dd
);
3566 if ((cl
= changelist_gather(zhp
, ZFS_PROP_NAME
, 0, 0)) == NULL
)
3569 if (changelist_haszonedchild(cl
)) {
3570 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
3571 "child dataset with inherited mountpoint is used "
3572 "in a non-global zone"));
3573 (void) zfs_error(hdl
, EZFS_ZONED
, errbuf
);
3577 if ((ret
= changelist_prefix(cl
)) != 0)
3581 if (ZFS_IS_VOLUME(zhp
))
3582 zc
.zc_objset_type
= DMU_OST_ZVOL
;
3584 zc
.zc_objset_type
= DMU_OST_ZFS
;
3586 (void) strlcpy(zc
.zc_name
, zhp
->zfs_name
, sizeof (zc
.zc_name
));
3587 (void) strlcpy(zc
.zc_value
, target
, sizeof (zc
.zc_value
));
3589 zc
.zc_cookie
= recursive
;
3591 if ((ret
= zfs_ioctl(zhp
->zfs_hdl
, ZFS_IOC_RENAME
, &zc
)) != 0) {
3593 * if it was recursive, the one that actually failed will
3596 (void) snprintf(errbuf
, sizeof (errbuf
), dgettext(TEXT_DOMAIN
,
3597 "cannot rename '%s'"), zc
.zc_name
);
3599 if (recursive
&& errno
== EEXIST
) {
3600 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
3601 "a child dataset already has a snapshot "
3602 "with the new name"));
3603 (void) zfs_error(hdl
, EZFS_EXISTS
, errbuf
);
3605 (void) zfs_standard_error(zhp
->zfs_hdl
, errno
, errbuf
);
3609 * On failure, we still want to remount any filesystems that
3610 * were previously mounted, so we don't alter the system state.
3613 struct createdata cd
;
3615 /* only create links for datasets that had existed */
3616 cd
.cd_snapname
= delim
+ 1;
3617 cd
.cd_ifexists
= B_TRUE
;
3618 (void) zfs_iter_filesystems(zhrp
, zfs_create_link_cb
,
3621 (void) changelist_postfix(cl
);
3625 struct createdata cd
;
3627 /* only create links for datasets that had existed */
3628 cd
.cd_snapname
= strchr(target
, '@') + 1;
3629 cd
.cd_ifexists
= B_TRUE
;
3630 ret
= zfs_iter_filesystems(zhrp
, zfs_create_link_cb
,
3633 changelist_rename(cl
, zfs_get_name(zhp
), target
);
3634 ret
= changelist_postfix(cl
);
3646 changelist_free(cl
);
3652 * Given a zvol dataset, issue the ioctl to create the appropriate minor node,
3653 * poke devfsadm to create the /dev link, and then wait for the link to appear.
3656 zvol_create_link(libzfs_handle_t
*hdl
, const char *dataset
)
3658 return (zvol_create_link_common(hdl
, dataset
, B_FALSE
));
3662 zvol_create_link_common(libzfs_handle_t
*hdl
, const char *dataset
, int ifexists
)
3664 zfs_cmd_t zc
= { 0 };
3665 di_devlink_handle_t dhdl
;
3666 priv_set_t
*priv_effective
;
3669 (void) strlcpy(zc
.zc_name
, dataset
, sizeof (zc
.zc_name
));
3672 * Issue the appropriate ioctl.
3674 if (ioctl(hdl
->libzfs_fd
, ZFS_IOC_CREATE_MINOR
, &zc
) != 0) {
3678 * Silently ignore the case where the link already
3679 * exists. This allows 'zfs volinit' to be run multiple
3680 * times without errors.
3686 * Dataset does not exist in the kernel. If we
3687 * don't care (see zfs_rename), then ignore the
3697 return (zfs_standard_error_fmt(hdl
, errno
,
3698 dgettext(TEXT_DOMAIN
, "cannot create device links "
3699 "for '%s'"), dataset
));
3704 * If privileged call devfsadm and wait for the links to
3706 * Otherwise, print out an informational message.
3709 priv_effective
= priv_allocset();
3710 (void) getppriv(PRIV_EFFECTIVE
, priv_effective
);
3711 privileged
= (priv_isfullset(priv_effective
) == B_TRUE
);
3712 priv_freeset(priv_effective
);
3715 if ((dhdl
= di_devlink_init(ZFS_DRIVER
,
3716 DI_MAKE_LINK
)) == NULL
) {
3717 zfs_error_aux(hdl
, strerror(errno
));
3718 (void) zfs_error_fmt(hdl
, errno
,
3719 dgettext(TEXT_DOMAIN
, "cannot create device links "
3720 "for '%s'"), dataset
);
3721 (void) ioctl(hdl
->libzfs_fd
, ZFS_IOC_REMOVE_MINOR
, &zc
);
3724 (void) di_devlink_fini(&dhdl
);
3727 char pathname
[MAXPATHLEN
];
3728 struct stat64 statbuf
;
3734 * This is the poor mans way of waiting for the link
3735 * to show up. If after 10 seconds we still don't
3736 * have it, then print out a message.
3738 (void) snprintf(pathname
, sizeof (pathname
), "/dev/zvol/dsk/%s",
3741 for (i
= 0; i
!= MAX_WAIT
; i
++) {
3742 if (stat64(pathname
, &statbuf
) == 0)
3747 (void) printf(gettext("%s may not be immediately "
3748 "available\n"), pathname
);
3755 * Remove a minor node for the given zvol and the associated /dev links.
3758 zvol_remove_link(libzfs_handle_t
*hdl
, const char *dataset
)
3760 zfs_cmd_t zc
= { 0 };
3762 (void) strlcpy(zc
.zc_name
, dataset
, sizeof (zc
.zc_name
));
3764 if (ioctl(hdl
->libzfs_fd
, ZFS_IOC_REMOVE_MINOR
, &zc
) != 0) {
3768 * Silently ignore the case where the link no longer
3769 * exists, so that 'zfs volfini' can be run multiple
3770 * times without errors.
3775 return (zfs_standard_error_fmt(hdl
, errno
,
3776 dgettext(TEXT_DOMAIN
, "cannot remove device "
3777 "links for '%s'"), dataset
));
3785 zfs_get_user_props(zfs_handle_t
*zhp
)
3787 return (zhp
->zfs_user_props
);
3791 * This function is used by 'zfs list' to determine the exact set of columns to
3792 * display, and their maximum widths. This does two main things:
3794 * - If this is a list of all properties, then expand the list to include
3795 * all native properties, and set a flag so that for each dataset we look
3796 * for new unique user properties and add them to the list.
3798 * - For non fixed-width properties, keep track of the maximum width seen
3799 * so that we can size the column appropriately.
3802 zfs_expand_proplist(zfs_handle_t
*zhp
, zprop_list_t
**plp
)
3804 libzfs_handle_t
*hdl
= zhp
->zfs_hdl
;
3805 zprop_list_t
*entry
;
3806 zprop_list_t
**last
, **start
;
3807 nvlist_t
*userprops
, *propval
;
3810 char buf
[ZFS_MAXPROPLEN
];
3812 if (zprop_expand_list(hdl
, plp
, ZFS_TYPE_DATASET
) != 0)
3815 userprops
= zfs_get_user_props(zhp
);
3818 if (entry
->pl_all
&& nvlist_next_nvpair(userprops
, NULL
) != NULL
) {
3820 * Go through and add any user properties as necessary. We
3821 * start by incrementing our list pointer to the first
3822 * non-native property.
3825 while (*start
!= NULL
) {
3826 if ((*start
)->pl_prop
== ZPROP_INVAL
)
3828 start
= &(*start
)->pl_next
;
3832 while ((elem
= nvlist_next_nvpair(userprops
, elem
)) != NULL
) {
3834 * See if we've already found this property in our list.
3836 for (last
= start
; *last
!= NULL
;
3837 last
= &(*last
)->pl_next
) {
3838 if (strcmp((*last
)->pl_user_prop
,
3839 nvpair_name(elem
)) == 0)
3843 if (*last
== NULL
) {
3844 if ((entry
= zfs_alloc(hdl
,
3845 sizeof (zprop_list_t
))) == NULL
||
3846 ((entry
->pl_user_prop
= zfs_strdup(hdl
,
3847 nvpair_name(elem
)))) == NULL
) {
3852 entry
->pl_prop
= ZPROP_INVAL
;
3853 entry
->pl_width
= strlen(nvpair_name(elem
));
3854 entry
->pl_all
= B_TRUE
;
3861 * Now go through and check the width of any non-fixed columns
3863 for (entry
= *plp
; entry
!= NULL
; entry
= entry
->pl_next
) {
3864 if (entry
->pl_fixed
)
3867 if (entry
->pl_prop
!= ZPROP_INVAL
) {
3868 if (zfs_prop_get(zhp
, entry
->pl_prop
,
3869 buf
, sizeof (buf
), NULL
, NULL
, 0, B_FALSE
) == 0) {
3870 if (strlen(buf
) > entry
->pl_width
)
3871 entry
->pl_width
= strlen(buf
);
3873 } else if (nvlist_lookup_nvlist(userprops
,
3874 entry
->pl_user_prop
, &propval
) == 0) {
3875 verify(nvlist_lookup_string(propval
,
3876 ZPROP_VALUE
, &strval
) == 0);
3877 if (strlen(strval
) > entry
->pl_width
)
3878 entry
->pl_width
= strlen(strval
);
3886 zfs_iscsi_perm_check(libzfs_handle_t
*hdl
, char *dataset
, ucred_t
*cred
)
3888 zfs_cmd_t zc
= { 0 };
3892 const gid_t
*groups
;
3896 if (nvlist_alloc(&nvp
, NV_UNIQUE_NAME
, 0) != 0)
3897 return (no_memory(hdl
));
3899 uid
= ucred_geteuid(cred
);
3900 gid
= ucred_getegid(cred
);
3901 group_cnt
= ucred_getgroups(cred
, &groups
);
3903 if (uid
== (uid_t
)-1 || gid
== (uid_t
)-1 || group_cnt
== (uid_t
)-1)
3906 if (nvlist_add_uint32(nvp
, ZFS_DELEG_PERM_UID
, uid
) != 0) {
3911 if (nvlist_add_uint32(nvp
, ZFS_DELEG_PERM_GID
, gid
) != 0) {
3916 if (nvlist_add_uint32_array(nvp
,
3917 ZFS_DELEG_PERM_GROUPS
, (uint32_t *)groups
, group_cnt
) != 0) {
3921 (void) strlcpy(zc
.zc_name
, dataset
, sizeof (zc
.zc_name
));
3923 if (zcmd_write_src_nvlist(hdl
, &zc
, nvp
))
3926 error
= ioctl(hdl
->libzfs_fd
, ZFS_IOC_ISCSI_PERM_CHECK
, &zc
);
3932 zfs_deleg_share_nfs(libzfs_handle_t
*hdl
, char *dataset
, char *path
,
3933 char *resource
, void *export
, void *sharetab
,
3934 int sharemax
, zfs_share_op_t operation
)
3936 zfs_cmd_t zc
= { 0 };
3939 (void) strlcpy(zc
.zc_name
, dataset
, sizeof (zc
.zc_name
));
3940 (void) strlcpy(zc
.zc_value
, path
, sizeof (zc
.zc_value
));
3942 (void) strlcpy(zc
.zc_string
, resource
, sizeof (zc
.zc_string
));
3943 zc
.zc_share
.z_sharedata
= (uint64_t)(uintptr_t)sharetab
;
3944 zc
.zc_share
.z_exportdata
= (uint64_t)(uintptr_t)export
;
3945 zc
.zc_share
.z_sharetype
= operation
;
3946 zc
.zc_share
.z_sharemax
= sharemax
;
3947 error
= ioctl(hdl
->libzfs_fd
, ZFS_IOC_SHARE
, &zc
);
3952 zfs_prune_proplist(zfs_handle_t
*zhp
, uint8_t *props
)
3957 * Keep a reference to the props-table against which we prune the
3960 zhp
->zfs_props_table
= props
;
3962 curr
= nvlist_next_nvpair(zhp
->zfs_props
, NULL
);
3965 zfs_prop_t zfs_prop
= zfs_name_to_prop(nvpair_name(curr
));
3966 nvpair_t
*next
= nvlist_next_nvpair(zhp
->zfs_props
, curr
);
3969 * We leave user:props in the nvlist, so there will be
3970 * some ZPROP_INVAL. To be extra safe, don't prune
3973 if (zfs_prop
!= ZPROP_INVAL
&& props
[zfs_prop
] == B_FALSE
)
3974 (void) nvlist_remove(zhp
->zfs_props
,
3975 nvpair_name(curr
), nvpair_type(curr
));
3981 zfs_smb_acl_mgmt(libzfs_handle_t
*hdl
, char *dataset
, char *path
,
3982 zfs_smb_acl_op_t cmd
, char *resource1
, char *resource2
)
3984 zfs_cmd_t zc
= { 0 };
3985 nvlist_t
*nvlist
= NULL
;
3988 (void) strlcpy(zc
.zc_name
, dataset
, sizeof (zc
.zc_name
));
3989 (void) strlcpy(zc
.zc_value
, path
, sizeof (zc
.zc_value
));
3990 zc
.zc_cookie
= (uint64_t)cmd
;
3992 if (cmd
== ZFS_SMB_ACL_RENAME
) {
3993 if (nvlist_alloc(&nvlist
, NV_UNIQUE_NAME
, 0) != 0) {
3994 (void) no_memory(hdl
);
4000 case ZFS_SMB_ACL_ADD
:
4001 case ZFS_SMB_ACL_REMOVE
:
4002 (void) strlcpy(zc
.zc_string
, resource1
, sizeof (zc
.zc_string
));
4004 case ZFS_SMB_ACL_RENAME
:
4005 if (nvlist_add_string(nvlist
, ZFS_SMB_ACL_SRC
,
4007 (void) no_memory(hdl
);
4010 if (nvlist_add_string(nvlist
, ZFS_SMB_ACL_TARGET
,
4012 (void) no_memory(hdl
);
4015 if (zcmd_write_src_nvlist(hdl
, &zc
, nvlist
) != 0) {
4016 nvlist_free(nvlist
);
4020 case ZFS_SMB_ACL_PURGE
:
4025 error
= ioctl(hdl
->libzfs_fd
, ZFS_IOC_SMB_ACL
, &zc
);
4027 nvlist_free(nvlist
);
4032 zfs_smb_acl_add(libzfs_handle_t
*hdl
, char *dataset
,
4033 char *path
, char *resource
)
4035 return (zfs_smb_acl_mgmt(hdl
, dataset
, path
, ZFS_SMB_ACL_ADD
,
4040 zfs_smb_acl_remove(libzfs_handle_t
*hdl
, char *dataset
,
4041 char *path
, char *resource
)
4043 return (zfs_smb_acl_mgmt(hdl
, dataset
, path
, ZFS_SMB_ACL_REMOVE
,
4048 zfs_smb_acl_purge(libzfs_handle_t
*hdl
, char *dataset
, char *path
)
4050 return (zfs_smb_acl_mgmt(hdl
, dataset
, path
, ZFS_SMB_ACL_PURGE
,
4055 zfs_smb_acl_rename(libzfs_handle_t
*hdl
, char *dataset
, char *path
,
4056 char *oldname
, char *newname
)
4058 return (zfs_smb_acl_mgmt(hdl
, dataset
, path
, ZFS_SMB_ACL_RENAME
,
4063 zfs_userspace(zfs_handle_t
*zhp
, zfs_userquota_prop_t type
,
4064 zfs_userspace_cb_t func
, void *arg
)
4066 zfs_cmd_t zc
= { 0 };
4068 zfs_useracct_t buf
[100];
4070 (void) strncpy(zc
.zc_name
, zhp
->zfs_name
, sizeof (zc
.zc_name
));
4072 zc
.zc_objset_type
= type
;
4073 zc
.zc_nvlist_dst
= (uintptr_t)buf
;
4077 zfs_useracct_t
*zua
= buf
;
4079 zc
.zc_nvlist_dst_size
= sizeof (buf
);
4080 error
= ioctl(zhp
->zfs_hdl
->libzfs_fd
,
4081 ZFS_IOC_USERSPACE_MANY
, &zc
);
4082 if (error
|| zc
.zc_nvlist_dst_size
== 0)
4085 while (zc
.zc_nvlist_dst_size
> 0) {
4086 error
= func(arg
, zua
->zu_domain
, zua
->zu_rid
,
4091 zc
.zc_nvlist_dst_size
-= sizeof (zfs_useracct_t
);
4099 zfs_hold(zfs_handle_t
*zhp
, const char *snapname
, const char *tag
,
4100 boolean_t recursive
)
4102 zfs_cmd_t zc
= { 0 };
4103 libzfs_handle_t
*hdl
= zhp
->zfs_hdl
;
4105 (void) strlcpy(zc
.zc_name
, zhp
->zfs_name
, sizeof (zc
.zc_name
));
4106 (void) strlcpy(zc
.zc_value
, snapname
, sizeof (zc
.zc_value
));
4107 (void) strlcpy(zc
.zc_string
, tag
, sizeof (zc
.zc_string
));
4108 zc
.zc_cookie
= recursive
;
4110 if (zfs_ioctl(hdl
, ZFS_IOC_HOLD
, &zc
) != 0) {
4111 char errbuf
[ZFS_MAXNAMELEN
+32];
4114 * if it was recursive, the one that actually failed will be in
4117 (void) snprintf(errbuf
, sizeof (errbuf
), dgettext(TEXT_DOMAIN
,
4118 "cannot hold '%s@%s'"), zc
.zc_name
, snapname
);
4121 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
4122 "pool must be upgraded"));
4123 return (zfs_error(hdl
, EZFS_BADVERSION
, errbuf
));
4125 return (zfs_error(hdl
, EZFS_BADTYPE
, errbuf
));
4127 return (zfs_error(hdl
, EZFS_REFTAG_HOLD
, errbuf
));
4129 return (zfs_standard_error_fmt(hdl
, errno
, errbuf
));
4137 zfs_release(zfs_handle_t
*zhp
, const char *snapname
, const char *tag
,
4138 boolean_t recursive
)
4140 zfs_cmd_t zc
= { 0 };
4141 libzfs_handle_t
*hdl
= zhp
->zfs_hdl
;
4143 (void) strlcpy(zc
.zc_name
, zhp
->zfs_name
, sizeof (zc
.zc_name
));
4144 (void) strlcpy(zc
.zc_value
, snapname
, sizeof (zc
.zc_value
));
4145 (void) strlcpy(zc
.zc_string
, tag
, sizeof (zc
.zc_string
));
4146 zc
.zc_cookie
= recursive
;
4148 if (zfs_ioctl(hdl
, ZFS_IOC_RELEASE
, &zc
) != 0) {
4149 char errbuf
[ZFS_MAXNAMELEN
+32];
4152 * if it was recursive, the one that actually failed will be in
4155 (void) snprintf(errbuf
, sizeof (errbuf
), dgettext(TEXT_DOMAIN
,
4156 "cannot release '%s@%s'"), zc
.zc_name
, snapname
);
4159 return (zfs_error(hdl
, EZFS_REFTAG_RELE
, errbuf
));
4161 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
4162 "pool must be upgraded"));
4163 return (zfs_error(hdl
, EZFS_BADVERSION
, errbuf
));
4165 return (zfs_error(hdl
, EZFS_BADTYPE
, errbuf
));
4167 return (zfs_standard_error_fmt(hdl
, errno
, errbuf
));