4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Copyright (c) 2013, Joyent, Inc. All rights reserved.
25 * Copyright (c) 2011, 2016 by Delphix. All rights reserved.
26 * Copyright (c) 2012 DEY Storage Systems, Inc. All rights reserved.
27 * Copyright (c) 2011-2012 Pawel Jakub Dawidek. All rights reserved.
28 * Copyright (c) 2013 Martin Matuska. All rights reserved.
29 * Copyright (c) 2013 Steven Hartland. All rights reserved.
30 * Copyright (c) 2014 Integros [integros.com]
31 * Copyright 2017 Nexenta Systems, Inc.
32 * Copyright 2016 Igor Kozhukhov <ikozhukhov@gmail.com>
33 * Copyright 2017 RackTop Systems.
47 #include <sys/mntent.h>
48 #include <sys/mount.h>
56 #include <directory.h>
58 #include <sys/dnode.h>
63 #include "zfs_namecheck.h"
65 #include "libzfs_impl.h"
66 #include "zfs_deleg.h"
68 static int userquota_propname_decode(const char *propname
, boolean_t zoned
,
69 zfs_userquota_prop_t
*typep
, char *domain
, int domainlen
, uint64_t *ridp
);
72 * Given a single type (not a mask of types), return the type in a human
76 zfs_type_to_name(zfs_type_t type
)
79 case ZFS_TYPE_FILESYSTEM
:
80 return (dgettext(TEXT_DOMAIN
, "filesystem"));
81 case ZFS_TYPE_SNAPSHOT
:
82 return (dgettext(TEXT_DOMAIN
, "snapshot"));
84 return (dgettext(TEXT_DOMAIN
, "volume"));
86 return (dgettext(TEXT_DOMAIN
, "pool"));
87 case ZFS_TYPE_BOOKMARK
:
88 return (dgettext(TEXT_DOMAIN
, "bookmark"));
90 assert(!"unhandled zfs_type_t");
97 * Validate a ZFS path. This is used even before trying to open the dataset, to
98 * provide a more meaningful error message. We call zfs_error_aux() to
99 * explain exactly why the name was not valid.
102 zfs_validate_name(libzfs_handle_t
*hdl
, const char *path
, int type
,
108 if (entity_namecheck(path
, &why
, &what
) != 0) {
111 case NAME_ERR_TOOLONG
:
112 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
113 "name is too long"));
116 case NAME_ERR_LEADING_SLASH
:
117 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
118 "leading slash in name"));
121 case NAME_ERR_EMPTY_COMPONENT
:
122 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
123 "empty component in name"));
126 case NAME_ERR_TRAILING_SLASH
:
127 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
128 "trailing slash in name"));
131 case NAME_ERR_INVALCHAR
:
133 dgettext(TEXT_DOMAIN
, "invalid character "
134 "'%c' in name"), what
);
137 case NAME_ERR_MULTIPLE_DELIMITERS
:
138 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
139 "multiple '@' and/or '#' delimiters in "
143 case NAME_ERR_NOLETTER
:
144 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
145 "pool doesn't begin with a letter"));
148 case NAME_ERR_RESERVED
:
149 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
150 "name is reserved"));
153 case NAME_ERR_DISKLIKE
:
154 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
155 "reserved disk name"));
159 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
160 "(%d) not defined"), why
);
168 if (!(type
& ZFS_TYPE_SNAPSHOT
) && strchr(path
, '@') != NULL
) {
170 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
171 "snapshot delimiter '@' is not expected here"));
175 if (type
== ZFS_TYPE_SNAPSHOT
&& strchr(path
, '@') == NULL
) {
177 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
178 "missing '@' delimiter in snapshot name"));
182 if (!(type
& ZFS_TYPE_BOOKMARK
) && strchr(path
, '#') != NULL
) {
184 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
185 "bookmark delimiter '#' is not expected here"));
189 if (type
== ZFS_TYPE_BOOKMARK
&& strchr(path
, '#') == NULL
) {
191 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
192 "missing '#' delimiter in bookmark name"));
196 if (modifying
&& strchr(path
, '%') != NULL
) {
198 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
199 "invalid character %c in name"), '%');
207 zfs_name_valid(const char *name
, zfs_type_t type
)
209 if (type
== ZFS_TYPE_POOL
)
210 return (zpool_name_valid(NULL
, B_FALSE
, name
));
211 return (zfs_validate_name(NULL
, name
, type
, B_FALSE
));
215 * This function takes the raw DSL properties, and filters out the user-defined
216 * properties into a separate nvlist.
219 process_user_props(zfs_handle_t
*zhp
, nvlist_t
*props
)
221 libzfs_handle_t
*hdl
= zhp
->zfs_hdl
;
226 if (nvlist_alloc(&nvl
, NV_UNIQUE_NAME
, 0) != 0) {
227 (void) no_memory(hdl
);
232 while ((elem
= nvlist_next_nvpair(props
, elem
)) != NULL
) {
233 if (!zfs_prop_user(nvpair_name(elem
)))
236 verify(nvpair_value_nvlist(elem
, &propval
) == 0);
237 if (nvlist_add_nvlist(nvl
, nvpair_name(elem
), propval
) != 0) {
239 (void) no_memory(hdl
);
247 static zpool_handle_t
*
248 zpool_add_handle(zfs_handle_t
*zhp
, const char *pool_name
)
250 libzfs_handle_t
*hdl
= zhp
->zfs_hdl
;
253 if ((zph
= zpool_open_canfail(hdl
, pool_name
)) != NULL
) {
254 if (hdl
->libzfs_pool_handles
!= NULL
)
255 zph
->zpool_next
= hdl
->libzfs_pool_handles
;
256 hdl
->libzfs_pool_handles
= zph
;
261 static zpool_handle_t
*
262 zpool_find_handle(zfs_handle_t
*zhp
, const char *pool_name
, int len
)
264 libzfs_handle_t
*hdl
= zhp
->zfs_hdl
;
265 zpool_handle_t
*zph
= hdl
->libzfs_pool_handles
;
267 while ((zph
!= NULL
) &&
268 (strncmp(pool_name
, zpool_get_name(zph
), len
) != 0))
269 zph
= zph
->zpool_next
;
274 * Returns a handle to the pool that contains the provided dataset.
275 * If a handle to that pool already exists then that handle is returned.
276 * Otherwise, a new handle is created and added to the list of handles.
278 static zpool_handle_t
*
279 zpool_handle(zfs_handle_t
*zhp
)
285 len
= strcspn(zhp
->zfs_name
, "/@#") + 1;
286 pool_name
= zfs_alloc(zhp
->zfs_hdl
, len
);
287 (void) strlcpy(pool_name
, zhp
->zfs_name
, len
);
289 zph
= zpool_find_handle(zhp
, pool_name
, len
);
291 zph
= zpool_add_handle(zhp
, pool_name
);
298 zpool_free_handles(libzfs_handle_t
*hdl
)
300 zpool_handle_t
*next
, *zph
= hdl
->libzfs_pool_handles
;
302 while (zph
!= NULL
) {
303 next
= zph
->zpool_next
;
307 hdl
->libzfs_pool_handles
= NULL
;
311 * Utility function to gather stats (objset and zpl) for the given object.
314 get_stats_ioctl(zfs_handle_t
*zhp
, zfs_cmd_t
*zc
)
316 libzfs_handle_t
*hdl
= zhp
->zfs_hdl
;
318 (void) strlcpy(zc
->zc_name
, zhp
->zfs_name
, sizeof (zc
->zc_name
));
320 while (ioctl(hdl
->libzfs_fd
, ZFS_IOC_OBJSET_STATS
, zc
) != 0) {
321 if (errno
== ENOMEM
) {
322 if (zcmd_expand_dst_nvlist(hdl
, zc
) != 0) {
333 * Utility function to get the received properties of the given object.
336 get_recvd_props_ioctl(zfs_handle_t
*zhp
)
338 libzfs_handle_t
*hdl
= zhp
->zfs_hdl
;
339 nvlist_t
*recvdprops
;
340 zfs_cmd_t zc
= { 0 };
343 if (zcmd_alloc_dst_nvlist(hdl
, &zc
, 0) != 0)
346 (void) strlcpy(zc
.zc_name
, zhp
->zfs_name
, sizeof (zc
.zc_name
));
348 while (ioctl(hdl
->libzfs_fd
, ZFS_IOC_OBJSET_RECVD_PROPS
, &zc
) != 0) {
349 if (errno
== ENOMEM
) {
350 if (zcmd_expand_dst_nvlist(hdl
, &zc
) != 0) {
354 zcmd_free_nvlists(&zc
);
359 err
= zcmd_read_dst_nvlist(zhp
->zfs_hdl
, &zc
, &recvdprops
);
360 zcmd_free_nvlists(&zc
);
364 nvlist_free(zhp
->zfs_recvd_props
);
365 zhp
->zfs_recvd_props
= recvdprops
;
371 put_stats_zhdl(zfs_handle_t
*zhp
, zfs_cmd_t
*zc
)
373 nvlist_t
*allprops
, *userprops
;
375 zhp
->zfs_dmustats
= zc
->zc_objset_stats
; /* structure assignment */
377 if (zcmd_read_dst_nvlist(zhp
->zfs_hdl
, zc
, &allprops
) != 0) {
382 * XXX Why do we store the user props separately, in addition to
383 * storing them in zfs_props?
385 if ((userprops
= process_user_props(zhp
, allprops
)) == NULL
) {
386 nvlist_free(allprops
);
390 nvlist_free(zhp
->zfs_props
);
391 nvlist_free(zhp
->zfs_user_props
);
393 zhp
->zfs_props
= allprops
;
394 zhp
->zfs_user_props
= userprops
;
400 get_stats(zfs_handle_t
*zhp
)
403 zfs_cmd_t zc
= { 0 };
405 if (zcmd_alloc_dst_nvlist(zhp
->zfs_hdl
, &zc
, 0) != 0)
407 if (get_stats_ioctl(zhp
, &zc
) != 0)
409 else if (put_stats_zhdl(zhp
, &zc
) != 0)
411 zcmd_free_nvlists(&zc
);
416 * Refresh the properties currently stored in the handle.
419 zfs_refresh_properties(zfs_handle_t
*zhp
)
421 (void) get_stats(zhp
);
425 * Makes a handle from the given dataset name. Used by zfs_open() and
426 * zfs_iter_* to create child handles on the fly.
429 make_dataset_handle_common(zfs_handle_t
*zhp
, zfs_cmd_t
*zc
)
431 if (put_stats_zhdl(zhp
, zc
) != 0)
435 * We've managed to open the dataset and gather statistics. Determine
436 * the high-level type.
438 if (zhp
->zfs_dmustats
.dds_type
== DMU_OST_ZVOL
)
439 zhp
->zfs_head_type
= ZFS_TYPE_VOLUME
;
440 else if (zhp
->zfs_dmustats
.dds_type
== DMU_OST_ZFS
)
441 zhp
->zfs_head_type
= ZFS_TYPE_FILESYSTEM
;
445 if (zhp
->zfs_dmustats
.dds_is_snapshot
)
446 zhp
->zfs_type
= ZFS_TYPE_SNAPSHOT
;
447 else if (zhp
->zfs_dmustats
.dds_type
== DMU_OST_ZVOL
)
448 zhp
->zfs_type
= ZFS_TYPE_VOLUME
;
449 else if (zhp
->zfs_dmustats
.dds_type
== DMU_OST_ZFS
)
450 zhp
->zfs_type
= ZFS_TYPE_FILESYSTEM
;
452 abort(); /* we should never see any other types */
454 if ((zhp
->zpool_hdl
= zpool_handle(zhp
)) == NULL
)
461 make_dataset_handle(libzfs_handle_t
*hdl
, const char *path
)
463 zfs_cmd_t zc
= { 0 };
465 zfs_handle_t
*zhp
= calloc(sizeof (zfs_handle_t
), 1);
471 (void) strlcpy(zhp
->zfs_name
, path
, sizeof (zhp
->zfs_name
));
472 if (zcmd_alloc_dst_nvlist(hdl
, &zc
, 0) != 0) {
476 if (get_stats_ioctl(zhp
, &zc
) == -1) {
477 zcmd_free_nvlists(&zc
);
481 if (make_dataset_handle_common(zhp
, &zc
) == -1) {
485 zcmd_free_nvlists(&zc
);
490 make_dataset_handle_zc(libzfs_handle_t
*hdl
, zfs_cmd_t
*zc
)
492 zfs_handle_t
*zhp
= calloc(sizeof (zfs_handle_t
), 1);
498 (void) strlcpy(zhp
->zfs_name
, zc
->zc_name
, sizeof (zhp
->zfs_name
));
499 if (make_dataset_handle_common(zhp
, zc
) == -1) {
507 make_dataset_simple_handle_zc(zfs_handle_t
*pzhp
, zfs_cmd_t
*zc
)
509 zfs_handle_t
*zhp
= calloc(sizeof (zfs_handle_t
), 1);
514 zhp
->zfs_hdl
= pzhp
->zfs_hdl
;
515 (void) strlcpy(zhp
->zfs_name
, zc
->zc_name
, sizeof (zhp
->zfs_name
));
516 zhp
->zfs_head_type
= pzhp
->zfs_type
;
517 zhp
->zfs_type
= ZFS_TYPE_SNAPSHOT
;
518 zhp
->zpool_hdl
= zpool_handle(zhp
);
523 zfs_handle_dup(zfs_handle_t
*zhp_orig
)
525 zfs_handle_t
*zhp
= calloc(sizeof (zfs_handle_t
), 1);
530 zhp
->zfs_hdl
= zhp_orig
->zfs_hdl
;
531 zhp
->zpool_hdl
= zhp_orig
->zpool_hdl
;
532 (void) strlcpy(zhp
->zfs_name
, zhp_orig
->zfs_name
,
533 sizeof (zhp
->zfs_name
));
534 zhp
->zfs_type
= zhp_orig
->zfs_type
;
535 zhp
->zfs_head_type
= zhp_orig
->zfs_head_type
;
536 zhp
->zfs_dmustats
= zhp_orig
->zfs_dmustats
;
537 if (zhp_orig
->zfs_props
!= NULL
) {
538 if (nvlist_dup(zhp_orig
->zfs_props
, &zhp
->zfs_props
, 0) != 0) {
539 (void) no_memory(zhp
->zfs_hdl
);
544 if (zhp_orig
->zfs_user_props
!= NULL
) {
545 if (nvlist_dup(zhp_orig
->zfs_user_props
,
546 &zhp
->zfs_user_props
, 0) != 0) {
547 (void) no_memory(zhp
->zfs_hdl
);
552 if (zhp_orig
->zfs_recvd_props
!= NULL
) {
553 if (nvlist_dup(zhp_orig
->zfs_recvd_props
,
554 &zhp
->zfs_recvd_props
, 0)) {
555 (void) no_memory(zhp
->zfs_hdl
);
560 zhp
->zfs_mntcheck
= zhp_orig
->zfs_mntcheck
;
561 if (zhp_orig
->zfs_mntopts
!= NULL
) {
562 zhp
->zfs_mntopts
= zfs_strdup(zhp_orig
->zfs_hdl
,
563 zhp_orig
->zfs_mntopts
);
565 zhp
->zfs_props_table
= zhp_orig
->zfs_props_table
;
570 zfs_bookmark_exists(const char *path
)
574 char fsname
[ZFS_MAX_DATASET_NAME_LEN
];
581 (void) strlcpy(fsname
, path
, sizeof (fsname
));
582 pound
= strchr(fsname
, '#');
587 bmark_name
= pound
+ 1;
588 props
= fnvlist_alloc();
589 err
= lzc_get_bookmarks(fsname
, props
, &bmarks
);
596 rv
= nvlist_exists(bmarks
, bmark_name
);
602 make_bookmark_handle(zfs_handle_t
*parent
, const char *path
,
603 nvlist_t
*bmark_props
)
605 zfs_handle_t
*zhp
= calloc(sizeof (zfs_handle_t
), 1);
610 /* Fill in the name. */
611 zhp
->zfs_hdl
= parent
->zfs_hdl
;
612 (void) strlcpy(zhp
->zfs_name
, path
, sizeof (zhp
->zfs_name
));
614 /* Set the property lists. */
615 if (nvlist_dup(bmark_props
, &zhp
->zfs_props
, 0) != 0) {
621 zhp
->zfs_head_type
= parent
->zfs_head_type
;
622 zhp
->zfs_type
= ZFS_TYPE_BOOKMARK
;
624 if ((zhp
->zpool_hdl
= zpool_handle(zhp
)) == NULL
) {
625 nvlist_free(zhp
->zfs_props
);
633 struct zfs_open_bookmarks_cb_data
{
639 zfs_open_bookmarks_cb(zfs_handle_t
*zhp
, void *data
)
641 struct zfs_open_bookmarks_cb_data
*dp
= data
;
644 * Is it the one we are looking for?
646 if (strcmp(dp
->path
, zfs_get_name(zhp
)) == 0) {
648 * We found it. Save it and let the caller know we are done.
655 * Not found. Close the handle and ask for another one.
662 * Opens the given snapshot, bookmark, filesystem, or volume. The 'types'
663 * argument is a mask of acceptable types. The function will print an
664 * appropriate error message and return NULL if it can't be opened.
667 zfs_open(libzfs_handle_t
*hdl
, const char *path
, int types
)
673 (void) snprintf(errbuf
, sizeof (errbuf
),
674 dgettext(TEXT_DOMAIN
, "cannot open '%s'"), path
);
677 * Validate the name before we even try to open it.
679 if (!zfs_validate_name(hdl
, path
, types
, B_FALSE
)) {
680 (void) zfs_error(hdl
, EZFS_INVALIDNAME
, errbuf
);
685 * Bookmarks needs to be handled separately.
687 bookp
= strchr(path
, '#');
690 * Try to get stats for the dataset, which will tell us if it
694 if ((zhp
= make_dataset_handle(hdl
, path
)) == NULL
) {
695 (void) zfs_standard_error(hdl
, errno
, errbuf
);
699 char dsname
[ZFS_MAX_DATASET_NAME_LEN
];
701 struct zfs_open_bookmarks_cb_data cb_data
= {path
, NULL
};
704 * We need to cut out '#' and everything after '#'
705 * to get the parent dataset name only.
707 assert(bookp
- path
< sizeof (dsname
));
708 (void) strncpy(dsname
, path
, bookp
- path
);
709 dsname
[bookp
- path
] = '\0';
712 * Create handle for the parent dataset.
715 if ((pzhp
= make_dataset_handle(hdl
, dsname
)) == NULL
) {
716 (void) zfs_standard_error(hdl
, errno
, errbuf
);
721 * Iterate bookmarks to find the right one.
724 if ((zfs_iter_bookmarks(pzhp
, zfs_open_bookmarks_cb
,
725 &cb_data
) == 0) && (cb_data
.zhp
== NULL
)) {
726 (void) zfs_error(hdl
, EZFS_NOENT
, errbuf
);
730 if (cb_data
.zhp
== NULL
) {
731 (void) zfs_standard_error(hdl
, errno
, errbuf
);
743 if (!(types
& zhp
->zfs_type
)) {
744 (void) zfs_error(hdl
, EZFS_BADTYPE
, errbuf
);
753 * Release a ZFS handle. Nothing to do but free the associated memory.
756 zfs_close(zfs_handle_t
*zhp
)
758 if (zhp
->zfs_mntopts
)
759 free(zhp
->zfs_mntopts
);
760 nvlist_free(zhp
->zfs_props
);
761 nvlist_free(zhp
->zfs_user_props
);
762 nvlist_free(zhp
->zfs_recvd_props
);
766 typedef struct mnttab_node
{
767 struct mnttab mtn_mt
;
772 libzfs_mnttab_cache_compare(const void *arg1
, const void *arg2
)
774 const mnttab_node_t
*mtn1
= arg1
;
775 const mnttab_node_t
*mtn2
= arg2
;
778 rv
= strcmp(mtn1
->mtn_mt
.mnt_special
, mtn2
->mtn_mt
.mnt_special
);
782 return (rv
> 0 ? 1 : -1);
786 libzfs_mnttab_init(libzfs_handle_t
*hdl
)
788 assert(avl_numnodes(&hdl
->libzfs_mnttab_cache
) == 0);
789 avl_create(&hdl
->libzfs_mnttab_cache
, libzfs_mnttab_cache_compare
,
790 sizeof (mnttab_node_t
), offsetof(mnttab_node_t
, mtn_node
));
794 libzfs_mnttab_update(libzfs_handle_t
*hdl
)
798 rewind(hdl
->libzfs_mnttab
);
799 while (getmntent(hdl
->libzfs_mnttab
, &entry
) == 0) {
802 if (strcmp(entry
.mnt_fstype
, MNTTYPE_ZFS
) != 0)
804 mtn
= zfs_alloc(hdl
, sizeof (mnttab_node_t
));
805 mtn
->mtn_mt
.mnt_special
= zfs_strdup(hdl
, entry
.mnt_special
);
806 mtn
->mtn_mt
.mnt_mountp
= zfs_strdup(hdl
, entry
.mnt_mountp
);
807 mtn
->mtn_mt
.mnt_fstype
= zfs_strdup(hdl
, entry
.mnt_fstype
);
808 mtn
->mtn_mt
.mnt_mntopts
= zfs_strdup(hdl
, entry
.mnt_mntopts
);
809 avl_add(&hdl
->libzfs_mnttab_cache
, mtn
);
814 libzfs_mnttab_fini(libzfs_handle_t
*hdl
)
819 while ((mtn
= avl_destroy_nodes(&hdl
->libzfs_mnttab_cache
, &cookie
))
821 free(mtn
->mtn_mt
.mnt_special
);
822 free(mtn
->mtn_mt
.mnt_mountp
);
823 free(mtn
->mtn_mt
.mnt_fstype
);
824 free(mtn
->mtn_mt
.mnt_mntopts
);
827 avl_destroy(&hdl
->libzfs_mnttab_cache
);
831 libzfs_mnttab_cache(libzfs_handle_t
*hdl
, boolean_t enable
)
833 hdl
->libzfs_mnttab_enable
= enable
;
837 libzfs_mnttab_find(libzfs_handle_t
*hdl
, const char *fsname
,
838 struct mnttab
*entry
)
843 if (!hdl
->libzfs_mnttab_enable
) {
844 struct mnttab srch
= { 0 };
846 if (avl_numnodes(&hdl
->libzfs_mnttab_cache
))
847 libzfs_mnttab_fini(hdl
);
848 rewind(hdl
->libzfs_mnttab
);
849 srch
.mnt_special
= (char *)fsname
;
850 srch
.mnt_fstype
= MNTTYPE_ZFS
;
851 if (getmntany(hdl
->libzfs_mnttab
, entry
, &srch
) == 0)
857 if (avl_numnodes(&hdl
->libzfs_mnttab_cache
) == 0)
858 libzfs_mnttab_update(hdl
);
860 find
.mtn_mt
.mnt_special
= (char *)fsname
;
861 mtn
= avl_find(&hdl
->libzfs_mnttab_cache
, &find
, NULL
);
863 *entry
= mtn
->mtn_mt
;
870 libzfs_mnttab_add(libzfs_handle_t
*hdl
, const char *special
,
871 const char *mountp
, const char *mntopts
)
875 if (avl_numnodes(&hdl
->libzfs_mnttab_cache
) == 0)
877 mtn
= zfs_alloc(hdl
, sizeof (mnttab_node_t
));
878 mtn
->mtn_mt
.mnt_special
= zfs_strdup(hdl
, special
);
879 mtn
->mtn_mt
.mnt_mountp
= zfs_strdup(hdl
, mountp
);
880 mtn
->mtn_mt
.mnt_fstype
= zfs_strdup(hdl
, MNTTYPE_ZFS
);
881 mtn
->mtn_mt
.mnt_mntopts
= zfs_strdup(hdl
, mntopts
);
882 avl_add(&hdl
->libzfs_mnttab_cache
, mtn
);
886 libzfs_mnttab_remove(libzfs_handle_t
*hdl
, const char *fsname
)
891 find
.mtn_mt
.mnt_special
= (char *)fsname
;
892 if ((ret
= avl_find(&hdl
->libzfs_mnttab_cache
, (void *)&find
, NULL
))
894 avl_remove(&hdl
->libzfs_mnttab_cache
, ret
);
895 free(ret
->mtn_mt
.mnt_special
);
896 free(ret
->mtn_mt
.mnt_mountp
);
897 free(ret
->mtn_mt
.mnt_fstype
);
898 free(ret
->mtn_mt
.mnt_mntopts
);
904 zfs_spa_version(zfs_handle_t
*zhp
, int *spa_version
)
906 zpool_handle_t
*zpool_handle
= zhp
->zpool_hdl
;
908 if (zpool_handle
== NULL
)
911 *spa_version
= zpool_get_prop_int(zpool_handle
,
912 ZPOOL_PROP_VERSION
, NULL
);
917 * The choice of reservation property depends on the SPA version.
920 zfs_which_resv_prop(zfs_handle_t
*zhp
, zfs_prop_t
*resv_prop
)
924 if (zfs_spa_version(zhp
, &spa_version
) < 0)
927 if (spa_version
>= SPA_VERSION_REFRESERVATION
)
928 *resv_prop
= ZFS_PROP_REFRESERVATION
;
930 *resv_prop
= ZFS_PROP_RESERVATION
;
936 * Given an nvlist of properties to set, validates that they are correct, and
937 * parses any numeric properties (index, boolean, etc) if they are specified as
941 zfs_valid_proplist(libzfs_handle_t
*hdl
, zfs_type_t type
, nvlist_t
*nvl
,
942 uint64_t zoned
, zfs_handle_t
*zhp
, zpool_handle_t
*zpool_hdl
,
950 int chosen_normal
= -1;
953 if (nvlist_alloc(&ret
, NV_UNIQUE_NAME
, 0) != 0) {
954 (void) no_memory(hdl
);
959 * Make sure this property is valid and applies to this type.
963 while ((elem
= nvlist_next_nvpair(nvl
, elem
)) != NULL
) {
964 const char *propname
= nvpair_name(elem
);
966 prop
= zfs_name_to_prop(propname
);
967 if (prop
== ZPROP_INVAL
&& zfs_prop_user(propname
)) {
969 * This is a user property: make sure it's a
970 * string, and that it's less than ZAP_MAXNAMELEN.
972 if (nvpair_type(elem
) != DATA_TYPE_STRING
) {
973 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
974 "'%s' must be a string"), propname
);
975 (void) zfs_error(hdl
, EZFS_BADPROP
, errbuf
);
979 if (strlen(nvpair_name(elem
)) >= ZAP_MAXNAMELEN
) {
980 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
981 "property name '%s' is too long"),
983 (void) zfs_error(hdl
, EZFS_BADPROP
, errbuf
);
987 (void) nvpair_value_string(elem
, &strval
);
988 if (nvlist_add_string(ret
, propname
, strval
) != 0) {
989 (void) no_memory(hdl
);
996 * Currently, only user properties can be modified on
999 if (type
== ZFS_TYPE_SNAPSHOT
) {
1000 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1001 "this property can not be modified for snapshots"));
1002 (void) zfs_error(hdl
, EZFS_PROPTYPE
, errbuf
);
1006 if (prop
== ZPROP_INVAL
&& zfs_prop_userquota(propname
)) {
1007 zfs_userquota_prop_t uqtype
;
1008 char newpropname
[128];
1013 if (userquota_propname_decode(propname
, zoned
,
1014 &uqtype
, domain
, sizeof (domain
), &rid
) != 0) {
1016 dgettext(TEXT_DOMAIN
,
1017 "'%s' has an invalid user/group name"),
1019 (void) zfs_error(hdl
, EZFS_BADPROP
, errbuf
);
1023 if (uqtype
!= ZFS_PROP_USERQUOTA
&&
1024 uqtype
!= ZFS_PROP_GROUPQUOTA
) {
1026 dgettext(TEXT_DOMAIN
, "'%s' is readonly"),
1028 (void) zfs_error(hdl
, EZFS_PROPREADONLY
,
1033 if (nvpair_type(elem
) == DATA_TYPE_STRING
) {
1034 (void) nvpair_value_string(elem
, &strval
);
1035 if (strcmp(strval
, "none") == 0) {
1037 } else if (zfs_nicestrtonum(hdl
,
1038 strval
, &intval
) != 0) {
1039 (void) zfs_error(hdl
,
1040 EZFS_BADPROP
, errbuf
);
1043 } else if (nvpair_type(elem
) ==
1045 (void) nvpair_value_uint64(elem
, &intval
);
1047 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1048 "use 'none' to disable "
1049 "userquota/groupquota"));
1053 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1054 "'%s' must be a number"), propname
);
1055 (void) zfs_error(hdl
, EZFS_BADPROP
, errbuf
);
1060 * Encode the prop name as
1061 * userquota@<hex-rid>-domain, to make it easy
1062 * for the kernel to decode.
1064 (void) snprintf(newpropname
, sizeof (newpropname
),
1065 "%s%llx-%s", zfs_userquota_prop_prefixes
[uqtype
],
1066 (longlong_t
)rid
, domain
);
1070 if (nvlist_add_uint64_array(ret
, newpropname
,
1072 (void) no_memory(hdl
);
1076 } else if (prop
== ZPROP_INVAL
&& zfs_prop_written(propname
)) {
1077 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1078 "'%s' is readonly"),
1080 (void) zfs_error(hdl
, EZFS_PROPREADONLY
, errbuf
);
1084 if (prop
== ZPROP_INVAL
) {
1085 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1086 "invalid property '%s'"), propname
);
1087 (void) zfs_error(hdl
, EZFS_BADPROP
, errbuf
);
1091 if (!zfs_prop_valid_for_type(prop
, type
)) {
1093 dgettext(TEXT_DOMAIN
, "'%s' does not "
1094 "apply to datasets of this type"), propname
);
1095 (void) zfs_error(hdl
, EZFS_PROPTYPE
, errbuf
);
1099 if (zfs_prop_readonly(prop
) &&
1100 (!zfs_prop_setonce(prop
) || zhp
!= NULL
)) {
1102 dgettext(TEXT_DOMAIN
, "'%s' is readonly"),
1104 (void) zfs_error(hdl
, EZFS_PROPREADONLY
, errbuf
);
1108 if (zprop_parse_value(hdl
, elem
, prop
, type
, ret
,
1109 &strval
, &intval
, errbuf
) != 0)
1113 * Perform some additional checks for specific properties.
1116 case ZFS_PROP_VERSION
:
1122 version
= zfs_prop_get_int(zhp
, ZFS_PROP_VERSION
);
1123 if (intval
< version
) {
1124 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1125 "Can not downgrade; already at version %u"),
1127 (void) zfs_error(hdl
, EZFS_BADPROP
, errbuf
);
1133 case ZFS_PROP_VOLBLOCKSIZE
:
1134 case ZFS_PROP_RECORDSIZE
:
1136 int maxbs
= SPA_MAXBLOCKSIZE
;
1137 if (zpool_hdl
!= NULL
) {
1138 maxbs
= zpool_get_prop_int(zpool_hdl
,
1139 ZPOOL_PROP_MAXBLOCKSIZE
, NULL
);
1142 * Volumes are limited to a volblocksize of 128KB,
1143 * because they typically service workloads with
1144 * small random writes, which incur a large performance
1145 * penalty with large blocks.
1147 if (prop
== ZFS_PROP_VOLBLOCKSIZE
)
1148 maxbs
= SPA_OLD_MAXBLOCKSIZE
;
1150 * The value must be a power of two between
1151 * SPA_MINBLOCKSIZE and maxbs.
1153 if (intval
< SPA_MINBLOCKSIZE
||
1154 intval
> maxbs
|| !ISP2(intval
)) {
1155 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1156 "'%s' must be power of 2 from 512B "
1157 "to %uKB"), propname
, maxbs
>> 10);
1158 (void) zfs_error(hdl
, EZFS_BADPROP
, errbuf
);
1163 case ZFS_PROP_MLSLABEL
:
1166 * Verify the mlslabel string and convert to
1167 * internal hex label string.
1171 char *hex
= NULL
; /* internal label string */
1173 /* Default value is already OK. */
1174 if (strcasecmp(strval
, ZFS_MLSLABEL_DEFAULT
) == 0)
1177 /* Verify the label can be converted to binary form */
1178 if (((new_sl
= m_label_alloc(MAC_LABEL
)) == NULL
) ||
1179 (str_to_label(strval
, &new_sl
, MAC_LABEL
,
1180 L_NO_CORRECTION
, NULL
) == -1)) {
1184 /* Now translate to hex internal label string */
1185 if (label_to_str(new_sl
, &hex
, M_INTERNAL
,
1191 m_label_free(new_sl
);
1193 /* If string is already in internal form, we're done. */
1194 if (strcmp(strval
, hex
) == 0) {
1199 /* Replace the label string with the internal form. */
1200 (void) nvlist_remove(ret
, zfs_prop_to_name(prop
),
1202 verify(nvlist_add_string(ret
, zfs_prop_to_name(prop
),
1209 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1210 "invalid mlslabel '%s'"), strval
);
1211 (void) zfs_error(hdl
, EZFS_BADPROP
, errbuf
);
1212 m_label_free(new_sl
); /* OK if null */
1217 case ZFS_PROP_MOUNTPOINT
:
1219 namecheck_err_t why
;
1221 if (strcmp(strval
, ZFS_MOUNTPOINT_NONE
) == 0 ||
1222 strcmp(strval
, ZFS_MOUNTPOINT_LEGACY
) == 0)
1225 if (mountpoint_namecheck(strval
, &why
)) {
1227 case NAME_ERR_LEADING_SLASH
:
1229 dgettext(TEXT_DOMAIN
,
1230 "'%s' must be an absolute path, "
1231 "'none', or 'legacy'"), propname
);
1233 case NAME_ERR_TOOLONG
:
1235 dgettext(TEXT_DOMAIN
,
1236 "component of '%s' is too long"),
1242 dgettext(TEXT_DOMAIN
,
1243 "(%d) not defined"),
1247 (void) zfs_error(hdl
, EZFS_BADPROP
, errbuf
);
1254 case ZFS_PROP_SHARESMB
:
1255 case ZFS_PROP_SHARENFS
:
1257 * For the mountpoint and sharenfs or sharesmb
1258 * properties, check if it can be set in a
1259 * global/non-global zone based on
1260 * the zoned property value:
1262 * global zone non-global zone
1263 * --------------------------------------------------
1264 * zoned=on mountpoint (no) mountpoint (yes)
1265 * sharenfs (no) sharenfs (no)
1266 * sharesmb (no) sharesmb (no)
1268 * zoned=off mountpoint (yes) N/A
1273 if (getzoneid() == GLOBAL_ZONEID
) {
1274 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1275 "'%s' cannot be set on "
1276 "dataset in a non-global zone"),
1278 (void) zfs_error(hdl
, EZFS_ZONED
,
1281 } else if (prop
== ZFS_PROP_SHARENFS
||
1282 prop
== ZFS_PROP_SHARESMB
) {
1283 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1284 "'%s' cannot be set in "
1285 "a non-global zone"), propname
);
1286 (void) zfs_error(hdl
, EZFS_ZONED
,
1290 } else if (getzoneid() != GLOBAL_ZONEID
) {
1292 * If zoned property is 'off', this must be in
1293 * a global zone. If not, something is wrong.
1295 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1296 "'%s' cannot be set while dataset "
1297 "'zoned' property is set"), propname
);
1298 (void) zfs_error(hdl
, EZFS_ZONED
, errbuf
);
1303 * At this point, it is legitimate to set the
1304 * property. Now we want to make sure that the
1305 * property value is valid if it is sharenfs.
1307 if ((prop
== ZFS_PROP_SHARENFS
||
1308 prop
== ZFS_PROP_SHARESMB
) &&
1309 strcmp(strval
, "on") != 0 &&
1310 strcmp(strval
, "off") != 0) {
1311 zfs_share_proto_t proto
;
1313 if (prop
== ZFS_PROP_SHARESMB
)
1319 * Must be an valid sharing protocol
1320 * option string so init the libshare
1321 * in order to enable the parser and
1322 * then parse the options. We use the
1323 * control API since we don't care about
1324 * the current configuration and don't
1325 * want the overhead of loading it
1326 * until we actually do something.
1329 if (zfs_init_libshare(hdl
,
1330 SA_INIT_CONTROL_API
) != SA_OK
) {
1332 * An error occurred so we can't do
1335 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1336 "'%s' cannot be set: problem "
1337 "in share initialization"),
1339 (void) zfs_error(hdl
, EZFS_BADPROP
,
1344 if (zfs_parse_options(strval
, proto
) != SA_OK
) {
1346 * There was an error in parsing so
1347 * deal with it by issuing an error
1348 * message and leaving after
1349 * uninitializing the the libshare
1352 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1353 "'%s' cannot be set to invalid "
1354 "options"), propname
);
1355 (void) zfs_error(hdl
, EZFS_BADPROP
,
1357 zfs_uninit_libshare(hdl
);
1360 zfs_uninit_libshare(hdl
);
1365 case ZFS_PROP_UTF8ONLY
:
1366 chosen_utf
= (int)intval
;
1369 case ZFS_PROP_NORMALIZE
:
1370 chosen_normal
= (int)intval
;
1378 * For changes to existing volumes, we have some additional
1379 * checks to enforce.
1381 if (type
== ZFS_TYPE_VOLUME
&& zhp
!= NULL
) {
1382 uint64_t volsize
= zfs_prop_get_int(zhp
,
1384 uint64_t blocksize
= zfs_prop_get_int(zhp
,
1385 ZFS_PROP_VOLBLOCKSIZE
);
1389 case ZFS_PROP_RESERVATION
:
1390 case ZFS_PROP_REFRESERVATION
:
1391 if (intval
> volsize
) {
1392 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1393 "'%s' is greater than current "
1394 "volume size"), propname
);
1395 (void) zfs_error(hdl
, EZFS_BADPROP
,
1401 case ZFS_PROP_VOLSIZE
:
1402 if (intval
% blocksize
!= 0) {
1403 zfs_nicenum(blocksize
, buf
,
1405 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1406 "'%s' must be a multiple of "
1407 "volume block size (%s)"),
1409 (void) zfs_error(hdl
, EZFS_BADPROP
,
1415 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1416 "'%s' cannot be zero"),
1418 (void) zfs_error(hdl
, EZFS_BADPROP
,
1431 * If normalization was chosen, but no UTF8 choice was made,
1432 * enforce rejection of non-UTF8 names.
1434 * If normalization was chosen, but rejecting non-UTF8 names
1435 * was explicitly not chosen, it is an error.
1437 if (chosen_normal
> 0 && chosen_utf
< 0) {
1438 if (nvlist_add_uint64(ret
,
1439 zfs_prop_to_name(ZFS_PROP_UTF8ONLY
), 1) != 0) {
1440 (void) no_memory(hdl
);
1443 } else if (chosen_normal
> 0 && chosen_utf
== 0) {
1444 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1445 "'%s' must be set 'on' if normalization chosen"),
1446 zfs_prop_to_name(ZFS_PROP_UTF8ONLY
));
1447 (void) zfs_error(hdl
, EZFS_BADPROP
, errbuf
);
1458 zfs_add_synthetic_resv(zfs_handle_t
*zhp
, nvlist_t
*nvl
)
1460 uint64_t old_volsize
;
1461 uint64_t new_volsize
;
1462 uint64_t old_reservation
;
1463 uint64_t new_reservation
;
1464 zfs_prop_t resv_prop
;
1468 * If this is an existing volume, and someone is setting the volsize,
1469 * make sure that it matches the reservation, or add it if necessary.
1471 old_volsize
= zfs_prop_get_int(zhp
, ZFS_PROP_VOLSIZE
);
1472 if (zfs_which_resv_prop(zhp
, &resv_prop
) < 0)
1474 old_reservation
= zfs_prop_get_int(zhp
, resv_prop
);
1476 props
= fnvlist_alloc();
1477 fnvlist_add_uint64(props
, zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE
),
1478 zfs_prop_get_int(zhp
, ZFS_PROP_VOLBLOCKSIZE
));
1480 if ((zvol_volsize_to_reservation(old_volsize
, props
) !=
1481 old_reservation
) || nvlist_exists(nvl
,
1482 zfs_prop_to_name(resv_prop
))) {
1483 fnvlist_free(props
);
1486 if (nvlist_lookup_uint64(nvl
, zfs_prop_to_name(ZFS_PROP_VOLSIZE
),
1487 &new_volsize
) != 0) {
1488 fnvlist_free(props
);
1491 new_reservation
= zvol_volsize_to_reservation(new_volsize
, props
);
1492 fnvlist_free(props
);
1494 if (nvlist_add_uint64(nvl
, zfs_prop_to_name(resv_prop
),
1495 new_reservation
) != 0) {
1496 (void) no_memory(zhp
->zfs_hdl
);
1503 zfs_setprop_error(libzfs_handle_t
*hdl
, zfs_prop_t prop
, int err
,
1510 * For quotas and reservations, ENOSPC indicates
1511 * something different; setting a quota or reservation
1512 * doesn't use any disk space.
1515 case ZFS_PROP_QUOTA
:
1516 case ZFS_PROP_REFQUOTA
:
1517 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1518 "size is less than current used or "
1520 (void) zfs_error(hdl
, EZFS_PROPSPACE
, errbuf
);
1523 case ZFS_PROP_RESERVATION
:
1524 case ZFS_PROP_REFRESERVATION
:
1525 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1526 "size is greater than available space"));
1527 (void) zfs_error(hdl
, EZFS_PROPSPACE
, errbuf
);
1531 (void) zfs_standard_error(hdl
, err
, errbuf
);
1537 (void) zfs_standard_error(hdl
, EBUSY
, errbuf
);
1541 (void) zfs_error(hdl
, EZFS_DSREADONLY
, errbuf
);
1545 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1546 "property value too long"));
1547 (void) zfs_error(hdl
, EZFS_BADPROP
, errbuf
);
1551 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1552 "pool and or dataset must be upgraded to set this "
1553 "property or value"));
1554 (void) zfs_error(hdl
, EZFS_BADVERSION
, errbuf
);
1558 if (prop
== ZFS_PROP_COMPRESSION
||
1559 prop
== ZFS_PROP_RECORDSIZE
) {
1560 (void) zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1561 "property setting is not allowed on "
1562 "bootable datasets"));
1563 (void) zfs_error(hdl
, EZFS_NOTSUP
, errbuf
);
1564 } else if (prop
== ZFS_PROP_CHECKSUM
||
1565 prop
== ZFS_PROP_DEDUP
) {
1566 (void) zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1567 "property setting is not allowed on "
1569 (void) zfs_error(hdl
, EZFS_NOTSUP
, errbuf
);
1571 (void) zfs_standard_error(hdl
, err
, errbuf
);
1576 if (prop
== ZPROP_INVAL
) {
1577 (void) zfs_error(hdl
, EZFS_BADPROP
, errbuf
);
1579 (void) zfs_standard_error(hdl
, err
, errbuf
);
1585 * This platform can't address a volume this big.
1588 if (prop
== ZFS_PROP_VOLSIZE
) {
1589 (void) zfs_error(hdl
, EZFS_VOLTOOBIG
, errbuf
);
1595 (void) zfs_standard_error(hdl
, err
, errbuf
);
1600 * Given a property name and value, set the property for the given dataset.
1603 zfs_prop_set(zfs_handle_t
*zhp
, const char *propname
, const char *propval
)
1607 libzfs_handle_t
*hdl
= zhp
->zfs_hdl
;
1608 nvlist_t
*nvl
= NULL
;
1610 (void) snprintf(errbuf
, sizeof (errbuf
),
1611 dgettext(TEXT_DOMAIN
, "cannot set property for '%s'"),
1614 if (nvlist_alloc(&nvl
, NV_UNIQUE_NAME
, 0) != 0 ||
1615 nvlist_add_string(nvl
, propname
, propval
) != 0) {
1616 (void) no_memory(hdl
);
1620 ret
= zfs_prop_set_list(zhp
, nvl
);
1630 * Given an nvlist of property names and values, set the properties for the
1634 zfs_prop_set_list(zfs_handle_t
*zhp
, nvlist_t
*props
)
1636 zfs_cmd_t zc
= { 0 };
1638 prop_changelist_t
**cls
= NULL
;
1641 libzfs_handle_t
*hdl
= zhp
->zfs_hdl
;
1646 (void) snprintf(errbuf
, sizeof (errbuf
),
1647 dgettext(TEXT_DOMAIN
, "cannot set property for '%s'"),
1650 if ((nvl
= zfs_valid_proplist(hdl
, zhp
->zfs_type
, props
,
1651 zfs_prop_get_int(zhp
, ZFS_PROP_ZONED
), zhp
, zhp
->zpool_hdl
,
1656 * We have to check for any extra properties which need to be added
1657 * before computing the length of the nvlist.
1659 for (nvpair_t
*elem
= nvlist_next_nvpair(nvl
, NULL
);
1661 elem
= nvlist_next_nvpair(nvl
, elem
)) {
1662 if (zfs_name_to_prop(nvpair_name(elem
)) == ZFS_PROP_VOLSIZE
&&
1663 (added_resv
= zfs_add_synthetic_resv(zhp
, nvl
)) == -1) {
1668 * Check how many properties we're setting and allocate an array to
1669 * store changelist pointers for postfix().
1672 for (nvpair_t
*elem
= nvlist_next_nvpair(nvl
, NULL
);
1674 elem
= nvlist_next_nvpair(nvl
, elem
))
1676 if ((cls
= calloc(nvl_len
, sizeof (prop_changelist_t
*))) == NULL
)
1680 for (nvpair_t
*elem
= nvlist_next_nvpair(nvl
, NULL
);
1682 elem
= nvlist_next_nvpair(nvl
, elem
)) {
1684 zfs_prop_t prop
= zfs_name_to_prop(nvpair_name(elem
));
1686 assert(cl_idx
< nvl_len
);
1688 * We don't want to unmount & remount the dataset when changing
1689 * its canmount property to 'on' or 'noauto'. We only use
1690 * the changelist logic to unmount when setting canmount=off.
1692 if (prop
!= ZFS_PROP_CANMOUNT
||
1693 (fnvpair_value_uint64(elem
) == ZFS_CANMOUNT_OFF
&&
1694 zfs_is_mounted(zhp
, NULL
))) {
1695 cls
[cl_idx
] = changelist_gather(zhp
, prop
, 0, 0);
1696 if (cls
[cl_idx
] == NULL
)
1700 if (prop
== ZFS_PROP_MOUNTPOINT
&&
1701 changelist_haszonedchild(cls
[cl_idx
])) {
1702 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1703 "child dataset with inherited mountpoint is used "
1704 "in a non-global zone"));
1705 ret
= zfs_error(hdl
, EZFS_ZONED
, errbuf
);
1709 if (cls
[cl_idx
] != NULL
&&
1710 (ret
= changelist_prefix(cls
[cl_idx
])) != 0)
1715 assert(cl_idx
== nvl_len
);
1718 * Execute the corresponding ioctl() to set this list of properties.
1720 (void) strlcpy(zc
.zc_name
, zhp
->zfs_name
, sizeof (zc
.zc_name
));
1722 if ((ret
= zcmd_write_src_nvlist(hdl
, &zc
, nvl
)) != 0 ||
1723 (ret
= zcmd_alloc_dst_nvlist(hdl
, &zc
, 0)) != 0)
1726 ret
= zfs_ioctl(hdl
, ZFS_IOC_SET_PROP
, &zc
);
1729 /* Get the list of unset properties back and report them. */
1730 nvlist_t
*errorprops
= NULL
;
1731 if (zcmd_read_dst_nvlist(hdl
, &zc
, &errorprops
) != 0)
1733 for (nvpair_t
*elem
= nvlist_next_nvpair(nvl
, NULL
);
1735 elem
= nvlist_next_nvpair(nvl
, elem
)) {
1736 zfs_prop_t prop
= zfs_name_to_prop(nvpair_name(elem
));
1737 zfs_setprop_error(hdl
, prop
, errno
, errbuf
);
1739 nvlist_free(errorprops
);
1741 if (added_resv
&& errno
== ENOSPC
) {
1742 /* clean up the volsize property we tried to set */
1743 uint64_t old_volsize
= zfs_prop_get_int(zhp
,
1747 zcmd_free_nvlists(&zc
);
1749 if (nvlist_alloc(&nvl
, NV_UNIQUE_NAME
, 0) != 0)
1751 if (nvlist_add_uint64(nvl
,
1752 zfs_prop_to_name(ZFS_PROP_VOLSIZE
),
1755 if (zcmd_write_src_nvlist(hdl
, &zc
, nvl
) != 0)
1757 (void) zfs_ioctl(hdl
, ZFS_IOC_SET_PROP
, &zc
);
1760 for (cl_idx
= 0; cl_idx
< nvl_len
; cl_idx
++) {
1761 if (cls
[cl_idx
] != NULL
) {
1762 int clp_err
= changelist_postfix(cls
[cl_idx
]);
1769 * Refresh the statistics so the new property value
1773 (void) get_stats(zhp
);
1778 zcmd_free_nvlists(&zc
);
1780 for (cl_idx
= 0; cl_idx
< nvl_len
; cl_idx
++) {
1781 if (cls
[cl_idx
] != NULL
)
1782 changelist_free(cls
[cl_idx
]);
1790 * Given a property, inherit the value from the parent dataset, or if received
1791 * is TRUE, revert to the received value, if any.
1794 zfs_prop_inherit(zfs_handle_t
*zhp
, const char *propname
, boolean_t received
)
1796 zfs_cmd_t zc
= { 0 };
1798 prop_changelist_t
*cl
;
1799 libzfs_handle_t
*hdl
= zhp
->zfs_hdl
;
1803 (void) snprintf(errbuf
, sizeof (errbuf
), dgettext(TEXT_DOMAIN
,
1804 "cannot inherit %s for '%s'"), propname
, zhp
->zfs_name
);
1806 zc
.zc_cookie
= received
;
1807 if ((prop
= zfs_name_to_prop(propname
)) == ZPROP_INVAL
) {
1809 * For user properties, the amount of work we have to do is very
1810 * small, so just do it here.
1812 if (!zfs_prop_user(propname
)) {
1813 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1814 "invalid property"));
1815 return (zfs_error(hdl
, EZFS_BADPROP
, errbuf
));
1818 (void) strlcpy(zc
.zc_name
, zhp
->zfs_name
, sizeof (zc
.zc_name
));
1819 (void) strlcpy(zc
.zc_value
, propname
, sizeof (zc
.zc_value
));
1821 if (zfs_ioctl(zhp
->zfs_hdl
, ZFS_IOC_INHERIT_PROP
, &zc
) != 0)
1822 return (zfs_standard_error(hdl
, errno
, errbuf
));
1828 * Verify that this property is inheritable.
1830 if (zfs_prop_readonly(prop
))
1831 return (zfs_error(hdl
, EZFS_PROPREADONLY
, errbuf
));
1833 if (!zfs_prop_inheritable(prop
) && !received
)
1834 return (zfs_error(hdl
, EZFS_PROPNONINHERIT
, errbuf
));
1837 * Check to see if the value applies to this type
1839 if (!zfs_prop_valid_for_type(prop
, zhp
->zfs_type
))
1840 return (zfs_error(hdl
, EZFS_PROPTYPE
, errbuf
));
1843 * Normalize the name, to get rid of shorthand abbreviations.
1845 propname
= zfs_prop_to_name(prop
);
1846 (void) strlcpy(zc
.zc_name
, zhp
->zfs_name
, sizeof (zc
.zc_name
));
1847 (void) strlcpy(zc
.zc_value
, propname
, sizeof (zc
.zc_value
));
1849 if (prop
== ZFS_PROP_MOUNTPOINT
&& getzoneid() == GLOBAL_ZONEID
&&
1850 zfs_prop_get_int(zhp
, ZFS_PROP_ZONED
)) {
1851 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1852 "dataset is used in a non-global zone"));
1853 return (zfs_error(hdl
, EZFS_ZONED
, errbuf
));
1857 * Determine datasets which will be affected by this change, if any.
1859 if ((cl
= changelist_gather(zhp
, prop
, 0, 0)) == NULL
)
1862 if (prop
== ZFS_PROP_MOUNTPOINT
&& changelist_haszonedchild(cl
)) {
1863 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
1864 "child dataset with inherited mountpoint is used "
1865 "in a non-global zone"));
1866 ret
= zfs_error(hdl
, EZFS_ZONED
, errbuf
);
1870 if ((ret
= changelist_prefix(cl
)) != 0)
1873 if ((ret
= zfs_ioctl(zhp
->zfs_hdl
, ZFS_IOC_INHERIT_PROP
, &zc
)) != 0) {
1874 return (zfs_standard_error(hdl
, errno
, errbuf
));
1877 if ((ret
= changelist_postfix(cl
)) != 0)
1881 * Refresh the statistics so the new property is reflected.
1883 (void) get_stats(zhp
);
1887 changelist_free(cl
);
1892 * True DSL properties are stored in an nvlist. The following two functions
1893 * extract them appropriately.
1896 getprop_uint64(zfs_handle_t
*zhp
, zfs_prop_t prop
, char **source
)
1902 if (nvlist_lookup_nvlist(zhp
->zfs_props
,
1903 zfs_prop_to_name(prop
), &nv
) == 0) {
1904 verify(nvlist_lookup_uint64(nv
, ZPROP_VALUE
, &value
) == 0);
1905 (void) nvlist_lookup_string(nv
, ZPROP_SOURCE
, source
);
1907 verify(!zhp
->zfs_props_table
||
1908 zhp
->zfs_props_table
[prop
] == B_TRUE
);
1909 value
= zfs_prop_default_numeric(prop
);
1917 getprop_string(zfs_handle_t
*zhp
, zfs_prop_t prop
, char **source
)
1923 if (nvlist_lookup_nvlist(zhp
->zfs_props
,
1924 zfs_prop_to_name(prop
), &nv
) == 0) {
1925 value
= fnvlist_lookup_string(nv
, ZPROP_VALUE
);
1926 (void) nvlist_lookup_string(nv
, ZPROP_SOURCE
, source
);
1928 verify(!zhp
->zfs_props_table
||
1929 zhp
->zfs_props_table
[prop
] == B_TRUE
);
1930 value
= zfs_prop_default_string(prop
);
1938 zfs_is_recvd_props_mode(zfs_handle_t
*zhp
)
1940 return (zhp
->zfs_props
== zhp
->zfs_recvd_props
);
1944 zfs_set_recvd_props_mode(zfs_handle_t
*zhp
, uint64_t *cookie
)
1946 *cookie
= (uint64_t)(uintptr_t)zhp
->zfs_props
;
1947 zhp
->zfs_props
= zhp
->zfs_recvd_props
;
1951 zfs_unset_recvd_props_mode(zfs_handle_t
*zhp
, uint64_t *cookie
)
1953 zhp
->zfs_props
= (nvlist_t
*)(uintptr_t)*cookie
;
1958 * Internal function for getting a numeric property. Both zfs_prop_get() and
1959 * zfs_prop_get_int() are built using this interface.
1961 * Certain properties can be overridden using 'mount -o'. In this case, scan
1962 * the contents of the /etc/mnttab entry, searching for the appropriate options.
1963 * If they differ from the on-disk values, report the current values and mark
1964 * the source "temporary".
1967 get_numeric_property(zfs_handle_t
*zhp
, zfs_prop_t prop
, zprop_source_t
*src
,
1968 char **source
, uint64_t *val
)
1970 zfs_cmd_t zc
= { 0 };
1971 nvlist_t
*zplprops
= NULL
;
1973 char *mntopt_on
= NULL
;
1974 char *mntopt_off
= NULL
;
1975 boolean_t received
= zfs_is_recvd_props_mode(zhp
);
1980 case ZFS_PROP_ATIME
:
1981 mntopt_on
= MNTOPT_ATIME
;
1982 mntopt_off
= MNTOPT_NOATIME
;
1985 case ZFS_PROP_DEVICES
:
1986 mntopt_on
= MNTOPT_DEVICES
;
1987 mntopt_off
= MNTOPT_NODEVICES
;
1991 mntopt_on
= MNTOPT_EXEC
;
1992 mntopt_off
= MNTOPT_NOEXEC
;
1995 case ZFS_PROP_READONLY
:
1996 mntopt_on
= MNTOPT_RO
;
1997 mntopt_off
= MNTOPT_RW
;
2000 case ZFS_PROP_SETUID
:
2001 mntopt_on
= MNTOPT_SETUID
;
2002 mntopt_off
= MNTOPT_NOSETUID
;
2005 case ZFS_PROP_XATTR
:
2006 mntopt_on
= MNTOPT_XATTR
;
2007 mntopt_off
= MNTOPT_NOXATTR
;
2010 case ZFS_PROP_NBMAND
:
2011 mntopt_on
= MNTOPT_NBMAND
;
2012 mntopt_off
= MNTOPT_NONBMAND
;
2020 * Because looking up the mount options is potentially expensive
2021 * (iterating over all of /etc/mnttab), we defer its calculation until
2022 * we're looking up a property which requires its presence.
2024 if (!zhp
->zfs_mntcheck
&&
2025 (mntopt_on
!= NULL
|| prop
== ZFS_PROP_MOUNTED
)) {
2026 libzfs_handle_t
*hdl
= zhp
->zfs_hdl
;
2027 struct mnttab entry
;
2029 if (libzfs_mnttab_find(hdl
, zhp
->zfs_name
, &entry
) == 0) {
2030 zhp
->zfs_mntopts
= zfs_strdup(hdl
,
2032 if (zhp
->zfs_mntopts
== NULL
)
2036 zhp
->zfs_mntcheck
= B_TRUE
;
2039 if (zhp
->zfs_mntopts
== NULL
)
2040 mnt
.mnt_mntopts
= "";
2042 mnt
.mnt_mntopts
= zhp
->zfs_mntopts
;
2045 case ZFS_PROP_ATIME
:
2046 case ZFS_PROP_DEVICES
:
2048 case ZFS_PROP_READONLY
:
2049 case ZFS_PROP_SETUID
:
2050 case ZFS_PROP_XATTR
:
2051 case ZFS_PROP_NBMAND
:
2052 *val
= getprop_uint64(zhp
, prop
, source
);
2057 if (hasmntopt(&mnt
, mntopt_on
) && !*val
) {
2060 *src
= ZPROP_SRC_TEMPORARY
;
2061 } else if (hasmntopt(&mnt
, mntopt_off
) && *val
) {
2064 *src
= ZPROP_SRC_TEMPORARY
;
2068 case ZFS_PROP_CANMOUNT
:
2069 case ZFS_PROP_VOLSIZE
:
2070 case ZFS_PROP_QUOTA
:
2071 case ZFS_PROP_REFQUOTA
:
2072 case ZFS_PROP_RESERVATION
:
2073 case ZFS_PROP_REFRESERVATION
:
2074 case ZFS_PROP_FILESYSTEM_LIMIT
:
2075 case ZFS_PROP_SNAPSHOT_LIMIT
:
2076 case ZFS_PROP_FILESYSTEM_COUNT
:
2077 case ZFS_PROP_SNAPSHOT_COUNT
:
2078 *val
= getprop_uint64(zhp
, prop
, source
);
2080 if (*source
== NULL
) {
2081 /* not default, must be local */
2082 *source
= zhp
->zfs_name
;
2086 case ZFS_PROP_MOUNTED
:
2087 *val
= (zhp
->zfs_mntopts
!= NULL
);
2090 case ZFS_PROP_NUMCLONES
:
2091 *val
= zhp
->zfs_dmustats
.dds_num_clones
;
2094 case ZFS_PROP_VERSION
:
2095 case ZFS_PROP_NORMALIZE
:
2096 case ZFS_PROP_UTF8ONLY
:
2098 if (!zfs_prop_valid_for_type(prop
, zhp
->zfs_head_type
) ||
2099 zcmd_alloc_dst_nvlist(zhp
->zfs_hdl
, &zc
, 0) != 0)
2101 (void) strlcpy(zc
.zc_name
, zhp
->zfs_name
, sizeof (zc
.zc_name
));
2102 if (zfs_ioctl(zhp
->zfs_hdl
, ZFS_IOC_OBJSET_ZPLPROPS
, &zc
)) {
2103 zcmd_free_nvlists(&zc
);
2106 if (zcmd_read_dst_nvlist(zhp
->zfs_hdl
, &zc
, &zplprops
) != 0 ||
2107 nvlist_lookup_uint64(zplprops
, zfs_prop_to_name(prop
),
2109 zcmd_free_nvlists(&zc
);
2112 nvlist_free(zplprops
);
2113 zcmd_free_nvlists(&zc
);
2116 case ZFS_PROP_INCONSISTENT
:
2117 *val
= zhp
->zfs_dmustats
.dds_inconsistent
;
2121 switch (zfs_prop_get_type(prop
)) {
2122 case PROP_TYPE_NUMBER
:
2123 case PROP_TYPE_INDEX
:
2124 *val
= getprop_uint64(zhp
, prop
, source
);
2126 * If we tried to use a default value for a
2127 * readonly property, it means that it was not
2128 * present. Note this only applies to "truly"
2129 * readonly properties, not set-once properties
2130 * like volblocksize.
2132 if (zfs_prop_readonly(prop
) &&
2133 !zfs_prop_setonce(prop
) &&
2134 *source
!= NULL
&& (*source
)[0] == '\0') {
2140 case PROP_TYPE_STRING
:
2142 zfs_error_aux(zhp
->zfs_hdl
, dgettext(TEXT_DOMAIN
,
2143 "cannot get non-numeric property"));
2144 return (zfs_error(zhp
->zfs_hdl
, EZFS_BADPROP
,
2145 dgettext(TEXT_DOMAIN
, "internal error")));
2153 * Calculate the source type, given the raw source string.
2156 get_source(zfs_handle_t
*zhp
, zprop_source_t
*srctype
, char *source
,
2157 char *statbuf
, size_t statlen
)
2159 if (statbuf
== NULL
|| *srctype
== ZPROP_SRC_TEMPORARY
)
2162 if (source
== NULL
) {
2163 *srctype
= ZPROP_SRC_NONE
;
2164 } else if (source
[0] == '\0') {
2165 *srctype
= ZPROP_SRC_DEFAULT
;
2166 } else if (strstr(source
, ZPROP_SOURCE_VAL_RECVD
) != NULL
) {
2167 *srctype
= ZPROP_SRC_RECEIVED
;
2169 if (strcmp(source
, zhp
->zfs_name
) == 0) {
2170 *srctype
= ZPROP_SRC_LOCAL
;
2172 (void) strlcpy(statbuf
, source
, statlen
);
2173 *srctype
= ZPROP_SRC_INHERITED
;
2180 zfs_prop_get_recvd(zfs_handle_t
*zhp
, const char *propname
, char *propbuf
,
2181 size_t proplen
, boolean_t literal
)
2186 if (zhp
->zfs_recvd_props
== NULL
)
2187 if (get_recvd_props_ioctl(zhp
) != 0)
2190 prop
= zfs_name_to_prop(propname
);
2192 if (prop
!= ZPROP_INVAL
) {
2194 if (!nvlist_exists(zhp
->zfs_recvd_props
, propname
))
2196 zfs_set_recvd_props_mode(zhp
, &cookie
);
2197 err
= zfs_prop_get(zhp
, prop
, propbuf
, proplen
,
2198 NULL
, NULL
, 0, literal
);
2199 zfs_unset_recvd_props_mode(zhp
, &cookie
);
2203 if (nvlist_lookup_nvlist(zhp
->zfs_recvd_props
,
2204 propname
, &propval
) != 0)
2206 verify(nvlist_lookup_string(propval
, ZPROP_VALUE
,
2208 (void) strlcpy(propbuf
, recvdval
, proplen
);
2211 return (err
== 0 ? 0 : -1);
2215 get_clones_string(zfs_handle_t
*zhp
, char *propbuf
, size_t proplen
)
2220 value
= zfs_get_clones_nvl(zhp
);
2225 for (pair
= nvlist_next_nvpair(value
, NULL
); pair
!= NULL
;
2226 pair
= nvlist_next_nvpair(value
, pair
)) {
2227 if (propbuf
[0] != '\0')
2228 (void) strlcat(propbuf
, ",", proplen
);
2229 (void) strlcat(propbuf
, nvpair_name(pair
), proplen
);
2235 struct get_clones_arg
{
2239 char buf
[ZFS_MAX_DATASET_NAME_LEN
];
2243 get_clones_cb(zfs_handle_t
*zhp
, void *arg
)
2245 struct get_clones_arg
*gca
= arg
;
2247 if (gca
->numclones
== 0) {
2252 if (zfs_prop_get(zhp
, ZFS_PROP_ORIGIN
, gca
->buf
, sizeof (gca
->buf
),
2253 NULL
, NULL
, 0, B_TRUE
) != 0)
2255 if (strcmp(gca
->buf
, gca
->origin
) == 0) {
2256 fnvlist_add_boolean(gca
->value
, zfs_get_name(zhp
));
2261 (void) zfs_iter_children(zhp
, get_clones_cb
, gca
);
2267 zfs_get_clones_nvl(zfs_handle_t
*zhp
)
2269 nvlist_t
*nv
, *value
;
2271 if (nvlist_lookup_nvlist(zhp
->zfs_props
,
2272 zfs_prop_to_name(ZFS_PROP_CLONES
), &nv
) != 0) {
2273 struct get_clones_arg gca
;
2276 * if this is a snapshot, then the kernel wasn't able
2277 * to get the clones. Do it by slowly iterating.
2279 if (zhp
->zfs_type
!= ZFS_TYPE_SNAPSHOT
)
2281 if (nvlist_alloc(&nv
, NV_UNIQUE_NAME
, 0) != 0)
2283 if (nvlist_alloc(&value
, NV_UNIQUE_NAME
, 0) != 0) {
2288 gca
.numclones
= zfs_prop_get_int(zhp
, ZFS_PROP_NUMCLONES
);
2290 gca
.origin
= zhp
->zfs_name
;
2292 if (gca
.numclones
!= 0) {
2294 char pool
[ZFS_MAX_DATASET_NAME_LEN
];
2297 /* get the pool name */
2298 (void) strlcpy(pool
, zhp
->zfs_name
, sizeof (pool
));
2299 (void) strsep(&cp
, "/@");
2300 root
= zfs_open(zhp
->zfs_hdl
, pool
,
2301 ZFS_TYPE_FILESYSTEM
);
2303 (void) get_clones_cb(root
, &gca
);
2306 if (gca
.numclones
!= 0 ||
2307 nvlist_add_nvlist(nv
, ZPROP_VALUE
, value
) != 0 ||
2308 nvlist_add_nvlist(zhp
->zfs_props
,
2309 zfs_prop_to_name(ZFS_PROP_CLONES
), nv
) != 0) {
2316 verify(0 == nvlist_lookup_nvlist(zhp
->zfs_props
,
2317 zfs_prop_to_name(ZFS_PROP_CLONES
), &nv
));
2320 verify(nvlist_lookup_nvlist(nv
, ZPROP_VALUE
, &value
) == 0);
2326 * Accepts a property and value and checks that the value
2327 * matches the one found by the channel program. If they are
2328 * not equal, print both of them.
2331 zcp_check(zfs_handle_t
*zhp
, zfs_prop_t prop
, uint64_t intval
,
2334 if (!zhp
->zfs_hdl
->libzfs_prop_debug
)
2337 char *poolname
= zhp
->zpool_hdl
->zpool_name
;
2338 const char *program
=
2340 "ds = args['dataset']\n"
2341 "prop = args['property']\n"
2342 "value, setpoint = zfs.get_prop(ds, prop)\n"
2343 "return {value=value, setpoint=setpoint}\n";
2346 nvlist_t
*argnvl
= fnvlist_alloc();
2348 fnvlist_add_string(argnvl
, "dataset", zhp
->zfs_name
);
2349 fnvlist_add_string(argnvl
, "property", zfs_prop_to_name(prop
));
2351 error
= lzc_channel_program_nosync(poolname
, program
,
2352 10 * 1000 * 1000, 10 * 1024 * 1024, argnvl
, &outnvl
);
2355 retnvl
= fnvlist_lookup_nvlist(outnvl
, "return");
2356 if (zfs_prop_get_type(prop
) == PROP_TYPE_NUMBER
) {
2358 error
= nvlist_lookup_int64(retnvl
, "value", &ans
);
2360 (void) fprintf(stderr
, "zcp check error: %u\n",
2364 if (ans
!= intval
) {
2365 (void) fprintf(stderr
,
2366 "%s: zfs found %lld, but zcp found %lld\n",
2367 zfs_prop_to_name(prop
),
2368 (longlong_t
)intval
, (longlong_t
)ans
);
2372 error
= nvlist_lookup_string(retnvl
, "value", &str_ans
);
2374 (void) fprintf(stderr
, "zcp check error: %u\n",
2378 if (strcmp(strval
, str_ans
) != 0) {
2379 (void) fprintf(stderr
,
2380 "%s: zfs found %s, but zcp found %s\n",
2381 zfs_prop_to_name(prop
),
2386 (void) fprintf(stderr
,
2387 "zcp check failed, channel program error: %u\n", error
);
2389 nvlist_free(argnvl
);
2390 nvlist_free(outnvl
);
2394 * Retrieve a property from the given object. If 'literal' is specified, then
2395 * numbers are left as exact values. Otherwise, numbers are converted to a
2396 * human-readable form.
2398 * Returns 0 on success, or -1 on error.
2401 zfs_prop_get(zfs_handle_t
*zhp
, zfs_prop_t prop
, char *propbuf
, size_t proplen
,
2402 zprop_source_t
*src
, char *statbuf
, size_t statlen
, boolean_t literal
)
2404 char *source
= NULL
;
2408 boolean_t received
= zfs_is_recvd_props_mode(zhp
);
2411 * Check to see if this property applies to our object
2413 if (!zfs_prop_valid_for_type(prop
, zhp
->zfs_type
))
2416 if (received
&& zfs_prop_readonly(prop
))
2420 *src
= ZPROP_SRC_NONE
;
2423 case ZFS_PROP_CREATION
:
2425 * 'creation' is a time_t stored in the statistics. We convert
2426 * this into a string unless 'literal' is specified.
2429 val
= getprop_uint64(zhp
, prop
, &source
);
2430 time_t time
= (time_t)val
;
2434 localtime_r(&time
, &t
) == NULL
||
2435 strftime(propbuf
, proplen
, "%a %b %e %k:%M %Y",
2437 (void) snprintf(propbuf
, proplen
, "%llu", val
);
2439 zcp_check(zhp
, prop
, val
, NULL
);
2442 case ZFS_PROP_MOUNTPOINT
:
2444 * Getting the precise mountpoint can be tricky.
2446 * - for 'none' or 'legacy', return those values.
2447 * - for inherited mountpoints, we want to take everything
2448 * after our ancestor and append it to the inherited value.
2450 * If the pool has an alternate root, we want to prepend that
2451 * root to any values we return.
2454 str
= getprop_string(zhp
, prop
, &source
);
2456 if (str
[0] == '/') {
2457 char buf
[MAXPATHLEN
];
2459 const char *relpath
;
2462 * If we inherit the mountpoint, even from a dataset
2463 * with a received value, the source will be the path of
2464 * the dataset we inherit from. If source is
2465 * ZPROP_SOURCE_VAL_RECVD, the received value is not
2468 if (strcmp(source
, ZPROP_SOURCE_VAL_RECVD
) == 0) {
2471 relpath
= zhp
->zfs_name
+ strlen(source
);
2472 if (relpath
[0] == '/')
2476 if ((zpool_get_prop(zhp
->zpool_hdl
,
2477 ZPOOL_PROP_ALTROOT
, buf
, MAXPATHLEN
, NULL
,
2478 B_FALSE
)) || (strcmp(root
, "-") == 0))
2481 * Special case an alternate root of '/'. This will
2482 * avoid having multiple leading slashes in the
2485 if (strcmp(root
, "/") == 0)
2489 * If the mountpoint is '/' then skip over this
2490 * if we are obtaining either an alternate root or
2491 * an inherited mountpoint.
2493 if (str
[1] == '\0' && (root
[0] != '\0' ||
2494 relpath
[0] != '\0'))
2497 if (relpath
[0] == '\0')
2498 (void) snprintf(propbuf
, proplen
, "%s%s",
2501 (void) snprintf(propbuf
, proplen
, "%s%s%s%s",
2502 root
, str
, relpath
[0] == '@' ? "" : "/",
2505 /* 'legacy' or 'none' */
2506 (void) strlcpy(propbuf
, str
, proplen
);
2508 zcp_check(zhp
, prop
, NULL
, propbuf
);
2511 case ZFS_PROP_ORIGIN
:
2512 str
= getprop_string(zhp
, prop
, &source
);
2515 (void) strlcpy(propbuf
, str
, proplen
);
2516 zcp_check(zhp
, prop
, NULL
, str
);
2519 case ZFS_PROP_CLONES
:
2520 if (get_clones_string(zhp
, propbuf
, proplen
) != 0)
2524 case ZFS_PROP_QUOTA
:
2525 case ZFS_PROP_REFQUOTA
:
2526 case ZFS_PROP_RESERVATION
:
2527 case ZFS_PROP_REFRESERVATION
:
2529 if (get_numeric_property(zhp
, prop
, src
, &source
, &val
) != 0)
2532 * If quota or reservation is 0, we translate this into 'none'
2533 * (unless literal is set), and indicate that it's the default
2534 * value. Otherwise, we print the number nicely and indicate
2535 * that its set locally.
2539 (void) strlcpy(propbuf
, "0", proplen
);
2541 (void) strlcpy(propbuf
, "none", proplen
);
2544 (void) snprintf(propbuf
, proplen
, "%llu",
2547 zfs_nicenum(val
, propbuf
, proplen
);
2549 zcp_check(zhp
, prop
, val
, NULL
);
2552 case ZFS_PROP_FILESYSTEM_LIMIT
:
2553 case ZFS_PROP_SNAPSHOT_LIMIT
:
2554 case ZFS_PROP_FILESYSTEM_COUNT
:
2555 case ZFS_PROP_SNAPSHOT_COUNT
:
2557 if (get_numeric_property(zhp
, prop
, src
, &source
, &val
) != 0)
2561 * If limit is UINT64_MAX, we translate this into 'none' (unless
2562 * literal is set), and indicate that it's the default value.
2563 * Otherwise, we print the number nicely and indicate that it's
2567 (void) snprintf(propbuf
, proplen
, "%llu",
2569 } else if (val
== UINT64_MAX
) {
2570 (void) strlcpy(propbuf
, "none", proplen
);
2572 zfs_nicenum(val
, propbuf
, proplen
);
2575 zcp_check(zhp
, prop
, val
, NULL
);
2578 case ZFS_PROP_REFRATIO
:
2579 case ZFS_PROP_COMPRESSRATIO
:
2580 if (get_numeric_property(zhp
, prop
, src
, &source
, &val
) != 0)
2582 (void) snprintf(propbuf
, proplen
, "%llu.%02llux",
2583 (u_longlong_t
)(val
/ 100),
2584 (u_longlong_t
)(val
% 100));
2585 zcp_check(zhp
, prop
, val
, NULL
);
2589 switch (zhp
->zfs_type
) {
2590 case ZFS_TYPE_FILESYSTEM
:
2593 case ZFS_TYPE_VOLUME
:
2596 case ZFS_TYPE_SNAPSHOT
:
2599 case ZFS_TYPE_BOOKMARK
:
2605 (void) snprintf(propbuf
, proplen
, "%s", str
);
2606 zcp_check(zhp
, prop
, NULL
, propbuf
);
2609 case ZFS_PROP_MOUNTED
:
2611 * The 'mounted' property is a pseudo-property that described
2612 * whether the filesystem is currently mounted. Even though
2613 * it's a boolean value, the typical values of "on" and "off"
2614 * don't make sense, so we translate to "yes" and "no".
2616 if (get_numeric_property(zhp
, ZFS_PROP_MOUNTED
,
2617 src
, &source
, &val
) != 0)
2620 (void) strlcpy(propbuf
, "yes", proplen
);
2622 (void) strlcpy(propbuf
, "no", proplen
);
2627 * The 'name' property is a pseudo-property derived from the
2628 * dataset name. It is presented as a real property to simplify
2631 (void) strlcpy(propbuf
, zhp
->zfs_name
, proplen
);
2632 zcp_check(zhp
, prop
, NULL
, propbuf
);
2635 case ZFS_PROP_MLSLABEL
:
2637 m_label_t
*new_sl
= NULL
;
2638 char *ascii
= NULL
; /* human readable label */
2640 (void) strlcpy(propbuf
,
2641 getprop_string(zhp
, prop
, &source
), proplen
);
2643 if (literal
|| (strcasecmp(propbuf
,
2644 ZFS_MLSLABEL_DEFAULT
) == 0))
2648 * Try to translate the internal hex string to
2649 * human-readable output. If there are any
2650 * problems just use the hex string.
2653 if (str_to_label(propbuf
, &new_sl
, MAC_LABEL
,
2654 L_NO_CORRECTION
, NULL
) == -1) {
2655 m_label_free(new_sl
);
2659 if (label_to_str(new_sl
, &ascii
, M_LABEL
,
2663 m_label_free(new_sl
);
2666 m_label_free(new_sl
);
2668 (void) strlcpy(propbuf
, ascii
, proplen
);
2675 * GUIDs are stored as numbers, but they are identifiers.
2676 * We don't want them to be pretty printed, because pretty
2677 * printing mangles the ID into a truncated and useless value.
2679 if (get_numeric_property(zhp
, prop
, src
, &source
, &val
) != 0)
2681 (void) snprintf(propbuf
, proplen
, "%llu", (u_longlong_t
)val
);
2682 zcp_check(zhp
, prop
, val
, NULL
);
2686 switch (zfs_prop_get_type(prop
)) {
2687 case PROP_TYPE_NUMBER
:
2688 if (get_numeric_property(zhp
, prop
, src
,
2689 &source
, &val
) != 0) {
2694 (void) snprintf(propbuf
, proplen
, "%llu",
2697 zfs_nicenum(val
, propbuf
, proplen
);
2699 zcp_check(zhp
, prop
, val
, NULL
);
2702 case PROP_TYPE_STRING
:
2703 str
= getprop_string(zhp
, prop
, &source
);
2707 (void) strlcpy(propbuf
, str
, proplen
);
2708 zcp_check(zhp
, prop
, NULL
, str
);
2711 case PROP_TYPE_INDEX
:
2712 if (get_numeric_property(zhp
, prop
, src
,
2713 &source
, &val
) != 0)
2715 if (zfs_prop_index_to_string(prop
, val
, &strval
) != 0)
2718 (void) strlcpy(propbuf
, strval
, proplen
);
2719 zcp_check(zhp
, prop
, NULL
, strval
);
2727 get_source(zhp
, src
, source
, statbuf
, statlen
);
2733 * Utility function to get the given numeric property. Does no validation that
2734 * the given property is the appropriate type; should only be used with
2735 * hard-coded property types.
2738 zfs_prop_get_int(zfs_handle_t
*zhp
, zfs_prop_t prop
)
2743 (void) get_numeric_property(zhp
, prop
, NULL
, &source
, &val
);
2749 zfs_prop_set_int(zfs_handle_t
*zhp
, zfs_prop_t prop
, uint64_t val
)
2753 (void) snprintf(buf
, sizeof (buf
), "%llu", (longlong_t
)val
);
2754 return (zfs_prop_set(zhp
, zfs_prop_to_name(prop
), buf
));
2758 * Similar to zfs_prop_get(), but returns the value as an integer.
2761 zfs_prop_get_numeric(zfs_handle_t
*zhp
, zfs_prop_t prop
, uint64_t *value
,
2762 zprop_source_t
*src
, char *statbuf
, size_t statlen
)
2767 * Check to see if this property applies to our object
2769 if (!zfs_prop_valid_for_type(prop
, zhp
->zfs_type
)) {
2770 return (zfs_error_fmt(zhp
->zfs_hdl
, EZFS_PROPTYPE
,
2771 dgettext(TEXT_DOMAIN
, "cannot get property '%s'"),
2772 zfs_prop_to_name(prop
)));
2776 *src
= ZPROP_SRC_NONE
;
2778 if (get_numeric_property(zhp
, prop
, src
, &source
, value
) != 0)
2781 get_source(zhp
, src
, source
, statbuf
, statlen
);
2787 idmap_id_to_numeric_domain_rid(uid_t id
, boolean_t isuser
,
2788 char **domainp
, idmap_rid_t
*ridp
)
2790 idmap_get_handle_t
*get_hdl
= NULL
;
2794 if (idmap_get_create(&get_hdl
) != IDMAP_SUCCESS
)
2798 err
= idmap_get_sidbyuid(get_hdl
, id
,
2799 IDMAP_REQ_FLG_USE_CACHE
, domainp
, ridp
, &status
);
2801 err
= idmap_get_sidbygid(get_hdl
, id
,
2802 IDMAP_REQ_FLG_USE_CACHE
, domainp
, ridp
, &status
);
2804 if (err
== IDMAP_SUCCESS
&&
2805 idmap_get_mappings(get_hdl
) == IDMAP_SUCCESS
&&
2806 status
== IDMAP_SUCCESS
)
2812 idmap_get_destroy(get_hdl
);
2817 * convert the propname into parameters needed by kernel
2818 * Eg: userquota@ahrens -> ZFS_PROP_USERQUOTA, "", 126829
2819 * Eg: userused@matt@domain -> ZFS_PROP_USERUSED, "S-1-123-456", 789
2822 userquota_propname_decode(const char *propname
, boolean_t zoned
,
2823 zfs_userquota_prop_t
*typep
, char *domain
, int domainlen
, uint64_t *ridp
)
2825 zfs_userquota_prop_t type
;
2827 char *numericsid
= NULL
;
2832 /* Figure out the property type ({user|group}{quota|space}) */
2833 for (type
= 0; type
< ZFS_NUM_USERQUOTA_PROPS
; type
++) {
2834 if (strncmp(propname
, zfs_userquota_prop_prefixes
[type
],
2835 strlen(zfs_userquota_prop_prefixes
[type
])) == 0)
2838 if (type
== ZFS_NUM_USERQUOTA_PROPS
)
2842 isuser
= (type
== ZFS_PROP_USERQUOTA
||
2843 type
== ZFS_PROP_USERUSED
);
2845 cp
= strchr(propname
, '@') + 1;
2847 if (strchr(cp
, '@')) {
2849 * It's a SID name (eg "user@domain") that needs to be
2850 * turned into S-1-domainID-RID.
2853 idmap_stat stat
, map_stat
;
2856 idmap_get_handle_t
*gh
= NULL
;
2858 stat
= idmap_get_create(&gh
);
2859 if (stat
!= IDMAP_SUCCESS
) {
2860 idmap_get_destroy(gh
);
2863 if (zoned
&& getzoneid() == GLOBAL_ZONEID
)
2866 stat
= idmap_getuidbywinname(cp
, NULL
, flag
, &pid
);
2869 stat
= idmap_get_sidbyuid(gh
, pid
, flag
, &numericsid
,
2872 stat
= idmap_getgidbywinname(cp
, NULL
, flag
, &pid
);
2875 stat
= idmap_get_sidbygid(gh
, pid
, flag
, &numericsid
,
2879 idmap_get_destroy(gh
);
2882 stat
= idmap_get_mappings(gh
);
2883 idmap_get_destroy(gh
);
2888 if (numericsid
== NULL
)
2892 /* will be further decoded below */
2895 if (strncmp(cp
, "S-1-", 4) == 0) {
2896 /* It's a numeric SID (eg "S-1-234-567-89") */
2897 (void) strlcpy(domain
, cp
, domainlen
);
2900 cp
= strrchr(domain
, '-');
2903 *ridp
= strtoull(cp
, &end
, 10);
2911 if (errno
!= 0 || *end
!= '\0')
2913 } else if (!isdigit(*cp
)) {
2915 * It's a user/group name (eg "user") that needs to be
2916 * turned into a uid/gid
2918 if (zoned
&& getzoneid() == GLOBAL_ZONEID
)
2934 /* It's a user/group ID (eg "12345"). */
2935 uid_t id
= strtoul(cp
, &end
, 10);
2942 /* It's an ephemeral ID. */
2943 if (idmap_id_to_numeric_domain_rid(id
, isuser
,
2944 &mapdomain
, &rid
) != 0)
2946 (void) strlcpy(domain
, mapdomain
, domainlen
);
2953 ASSERT3P(numericsid
, ==, NULL
);
2958 zfs_prop_get_userquota_common(zfs_handle_t
*zhp
, const char *propname
,
2959 uint64_t *propvalue
, zfs_userquota_prop_t
*typep
)
2962 zfs_cmd_t zc
= { 0 };
2964 (void) strlcpy(zc
.zc_name
, zhp
->zfs_name
, sizeof (zc
.zc_name
));
2966 err
= userquota_propname_decode(propname
,
2967 zfs_prop_get_int(zhp
, ZFS_PROP_ZONED
),
2968 typep
, zc
.zc_value
, sizeof (zc
.zc_value
), &zc
.zc_guid
);
2969 zc
.zc_objset_type
= *typep
;
2973 err
= ioctl(zhp
->zfs_hdl
->libzfs_fd
, ZFS_IOC_USERSPACE_ONE
, &zc
);
2977 *propvalue
= zc
.zc_cookie
;
2982 zfs_prop_get_userquota_int(zfs_handle_t
*zhp
, const char *propname
,
2983 uint64_t *propvalue
)
2985 zfs_userquota_prop_t type
;
2987 return (zfs_prop_get_userquota_common(zhp
, propname
, propvalue
,
2992 zfs_prop_get_userquota(zfs_handle_t
*zhp
, const char *propname
,
2993 char *propbuf
, int proplen
, boolean_t literal
)
2997 zfs_userquota_prop_t type
;
2999 err
= zfs_prop_get_userquota_common(zhp
, propname
, &propvalue
,
3006 (void) snprintf(propbuf
, proplen
, "%llu", propvalue
);
3007 } else if (propvalue
== 0 &&
3008 (type
== ZFS_PROP_USERQUOTA
|| type
== ZFS_PROP_GROUPQUOTA
)) {
3009 (void) strlcpy(propbuf
, "none", proplen
);
3011 zfs_nicenum(propvalue
, propbuf
, proplen
);
3017 zfs_prop_get_written_int(zfs_handle_t
*zhp
, const char *propname
,
3018 uint64_t *propvalue
)
3021 zfs_cmd_t zc
= { 0 };
3022 const char *snapname
;
3024 (void) strlcpy(zc
.zc_name
, zhp
->zfs_name
, sizeof (zc
.zc_name
));
3026 snapname
= strchr(propname
, '@') + 1;
3027 if (strchr(snapname
, '@')) {
3028 (void) strlcpy(zc
.zc_value
, snapname
, sizeof (zc
.zc_value
));
3030 /* snapname is the short name, append it to zhp's fsname */
3033 (void) strlcpy(zc
.zc_value
, zhp
->zfs_name
,
3034 sizeof (zc
.zc_value
));
3035 cp
= strchr(zc
.zc_value
, '@');
3038 (void) strlcat(zc
.zc_value
, "@", sizeof (zc
.zc_value
));
3039 (void) strlcat(zc
.zc_value
, snapname
, sizeof (zc
.zc_value
));
3042 err
= ioctl(zhp
->zfs_hdl
->libzfs_fd
, ZFS_IOC_SPACE_WRITTEN
, &zc
);
3046 *propvalue
= zc
.zc_cookie
;
3051 zfs_prop_get_written(zfs_handle_t
*zhp
, const char *propname
,
3052 char *propbuf
, int proplen
, boolean_t literal
)
3057 err
= zfs_prop_get_written_int(zhp
, propname
, &propvalue
);
3063 (void) snprintf(propbuf
, proplen
, "%llu", propvalue
);
3065 zfs_nicenum(propvalue
, propbuf
, proplen
);
3071 * Returns the name of the given zfs handle.
3074 zfs_get_name(const zfs_handle_t
*zhp
)
3076 return (zhp
->zfs_name
);
3080 * Returns the name of the parent pool for the given zfs handle.
3083 zfs_get_pool_name(const zfs_handle_t
*zhp
)
3085 return (zhp
->zpool_hdl
->zpool_name
);
3089 * Returns the type of the given zfs handle.
3092 zfs_get_type(const zfs_handle_t
*zhp
)
3094 return (zhp
->zfs_type
);
3098 * Is one dataset name a child dataset of another?
3100 * Needs to handle these cases:
3101 * Dataset 1 "a/foo" "a/foo" "a/foo" "a/foo"
3102 * Dataset 2 "a/fo" "a/foobar" "a/bar/baz" "a/foo/bar"
3103 * Descendant? No. No. No. Yes.
3106 is_descendant(const char *ds1
, const char *ds2
)
3108 size_t d1len
= strlen(ds1
);
3110 /* ds2 can't be a descendant if it's smaller */
3111 if (strlen(ds2
) < d1len
)
3114 /* otherwise, compare strings and verify that there's a '/' char */
3115 return (ds2
[d1len
] == '/' && (strncmp(ds1
, ds2
, d1len
) == 0));
3119 * Given a complete name, return just the portion that refers to the parent.
3120 * Will return -1 if there is no parent (path is just the name of the
3124 parent_name(const char *path
, char *buf
, size_t buflen
)
3128 (void) strlcpy(buf
, path
, buflen
);
3130 if ((slashp
= strrchr(buf
, '/')) == NULL
)
3138 * If accept_ancestor is false, then check to make sure that the given path has
3139 * a parent, and that it exists. If accept_ancestor is true, then find the
3140 * closest existing ancestor for the given path. In prefixlen return the
3141 * length of already existing prefix of the given path. We also fetch the
3142 * 'zoned' property, which is used to validate property settings when creating
3146 check_parents(libzfs_handle_t
*hdl
, const char *path
, uint64_t *zoned
,
3147 boolean_t accept_ancestor
, int *prefixlen
)
3149 zfs_cmd_t zc
= { 0 };
3150 char parent
[ZFS_MAX_DATASET_NAME_LEN
];
3156 (void) snprintf(errbuf
, sizeof (errbuf
),
3157 dgettext(TEXT_DOMAIN
, "cannot create '%s'"), path
);
3159 /* get parent, and check to see if this is just a pool */
3160 if (parent_name(path
, parent
, sizeof (parent
)) != 0) {
3161 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
3162 "missing dataset name"));
3163 return (zfs_error(hdl
, EZFS_INVALIDNAME
, errbuf
));
3166 /* check to see if the pool exists */
3167 if ((slash
= strchr(parent
, '/')) == NULL
)
3168 slash
= parent
+ strlen(parent
);
3169 (void) strncpy(zc
.zc_name
, parent
, slash
- parent
);
3170 zc
.zc_name
[slash
- parent
] = '\0';
3171 if (ioctl(hdl
->libzfs_fd
, ZFS_IOC_OBJSET_STATS
, &zc
) != 0 &&
3173 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
3174 "no such pool '%s'"), zc
.zc_name
);
3175 return (zfs_error(hdl
, EZFS_NOENT
, errbuf
));
3178 /* check to see if the parent dataset exists */
3179 while ((zhp
= make_dataset_handle(hdl
, parent
)) == NULL
) {
3180 if (errno
== ENOENT
&& accept_ancestor
) {
3182 * Go deeper to find an ancestor, give up on top level.
3184 if (parent_name(parent
, parent
, sizeof (parent
)) != 0) {
3185 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
3186 "no such pool '%s'"), zc
.zc_name
);
3187 return (zfs_error(hdl
, EZFS_NOENT
, errbuf
));
3189 } else if (errno
== ENOENT
) {
3190 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
3191 "parent does not exist"));
3192 return (zfs_error(hdl
, EZFS_NOENT
, errbuf
));
3194 return (zfs_standard_error(hdl
, errno
, errbuf
));
3197 is_zoned
= zfs_prop_get_int(zhp
, ZFS_PROP_ZONED
);
3201 /* we are in a non-global zone, but parent is in the global zone */
3202 if (getzoneid() != GLOBAL_ZONEID
&& !is_zoned
) {
3203 (void) zfs_standard_error(hdl
, EPERM
, errbuf
);
3208 /* make sure parent is a filesystem */
3209 if (zfs_get_type(zhp
) != ZFS_TYPE_FILESYSTEM
) {
3210 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
3211 "parent is not a filesystem"));
3212 (void) zfs_error(hdl
, EZFS_BADTYPE
, errbuf
);
3218 if (prefixlen
!= NULL
)
3219 *prefixlen
= strlen(parent
);
3224 * Finds whether the dataset of the given type(s) exists.
3227 zfs_dataset_exists(libzfs_handle_t
*hdl
, const char *path
, zfs_type_t types
)
3231 if (!zfs_validate_name(hdl
, path
, types
, B_FALSE
))
3235 * Try to get stats for the dataset, which will tell us if it exists.
3237 if ((zhp
= make_dataset_handle(hdl
, path
)) != NULL
) {
3238 int ds_type
= zhp
->zfs_type
;
3241 if (types
& ds_type
)
3248 * Given a path to 'target', create all the ancestors between
3249 * the prefixlen portion of the path, and the target itself.
3250 * Fail if the initial prefixlen-ancestor does not already exist.
3253 create_parents(libzfs_handle_t
*hdl
, char *target
, int prefixlen
)
3259 /* make sure prefix exists */
3260 cp
= target
+ prefixlen
;
3262 assert(strchr(cp
, '/') == NULL
);
3263 h
= zfs_open(hdl
, target
, ZFS_TYPE_FILESYSTEM
);
3266 h
= zfs_open(hdl
, target
, ZFS_TYPE_FILESYSTEM
);
3274 * Attempt to create, mount, and share any ancestor filesystems,
3275 * up to the prefixlen-long one.
3277 for (cp
= target
+ prefixlen
+ 1;
3278 (cp
= strchr(cp
, '/')) != NULL
; *cp
= '/', cp
++) {
3282 h
= make_dataset_handle(hdl
, target
);
3284 /* it already exists, nothing to do here */
3289 if (zfs_create(hdl
, target
, ZFS_TYPE_FILESYSTEM
,
3291 opname
= dgettext(TEXT_DOMAIN
, "create");
3295 h
= zfs_open(hdl
, target
, ZFS_TYPE_FILESYSTEM
);
3297 opname
= dgettext(TEXT_DOMAIN
, "open");
3301 if (zfs_mount(h
, NULL
, 0) != 0) {
3302 opname
= dgettext(TEXT_DOMAIN
, "mount");
3306 if (zfs_share(h
) != 0) {
3307 opname
= dgettext(TEXT_DOMAIN
, "share");
3317 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
3318 "failed to %s ancestor '%s'"), opname
, target
);
3323 * Creates non-existing ancestors of the given path.
3326 zfs_create_ancestors(libzfs_handle_t
*hdl
, const char *path
)
3332 if (check_parents(hdl
, path
, NULL
, B_TRUE
, &prefix
) != 0)
3335 if ((path_copy
= strdup(path
)) != NULL
) {
3336 rc
= create_parents(hdl
, path_copy
, prefix
);
3339 if (path_copy
== NULL
|| rc
!= 0)
3346 * Create a new filesystem or volume.
3349 zfs_create(libzfs_handle_t
*hdl
, const char *path
, zfs_type_t type
,
3354 uint64_t blocksize
= zfs_prop_default_numeric(ZFS_PROP_VOLBLOCKSIZE
);
3357 enum lzc_dataset_type ost
;
3358 zpool_handle_t
*zpool_handle
;
3360 (void) snprintf(errbuf
, sizeof (errbuf
), dgettext(TEXT_DOMAIN
,
3361 "cannot create '%s'"), path
);
3363 /* validate the path, taking care to note the extended error message */
3364 if (!zfs_validate_name(hdl
, path
, type
, B_TRUE
))
3365 return (zfs_error(hdl
, EZFS_INVALIDNAME
, errbuf
));
3367 /* validate parents exist */
3368 if (check_parents(hdl
, path
, &zoned
, B_FALSE
, NULL
) != 0)
3372 * The failure modes when creating a dataset of a different type over
3373 * one that already exists is a little strange. In particular, if you
3374 * try to create a dataset on top of an existing dataset, the ioctl()
3375 * will return ENOENT, not EEXIST. To prevent this from happening, we
3376 * first try to see if the dataset exists.
3378 if (zfs_dataset_exists(hdl
, path
, ZFS_TYPE_DATASET
)) {
3379 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
3380 "dataset already exists"));
3381 return (zfs_error(hdl
, EZFS_EXISTS
, errbuf
));
3384 if (type
== ZFS_TYPE_VOLUME
)
3385 ost
= LZC_DATSET_TYPE_ZVOL
;
3387 ost
= LZC_DATSET_TYPE_ZFS
;
3389 /* open zpool handle for prop validation */
3390 char pool_path
[ZFS_MAX_DATASET_NAME_LEN
];
3391 (void) strlcpy(pool_path
, path
, sizeof (pool_path
));
3393 /* truncate pool_path at first slash */
3394 char *p
= strchr(pool_path
, '/');
3398 if ((zpool_handle
= zpool_open(hdl
, pool_path
)) == NULL
)
3401 if (props
&& (props
= zfs_valid_proplist(hdl
, type
, props
,
3402 zoned
, NULL
, zpool_handle
, errbuf
)) == 0) {
3403 zpool_close(zpool_handle
);
3406 zpool_close(zpool_handle
);
3408 if (type
== ZFS_TYPE_VOLUME
) {
3410 * If we are creating a volume, the size and block size must
3411 * satisfy a few restraints. First, the blocksize must be a
3412 * valid block size between SPA_{MIN,MAX}BLOCKSIZE. Second, the
3413 * volsize must be a multiple of the block size, and cannot be
3416 if (props
== NULL
|| nvlist_lookup_uint64(props
,
3417 zfs_prop_to_name(ZFS_PROP_VOLSIZE
), &size
) != 0) {
3419 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
3420 "missing volume size"));
3421 return (zfs_error(hdl
, EZFS_BADPROP
, errbuf
));
3424 if ((ret
= nvlist_lookup_uint64(props
,
3425 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE
),
3426 &blocksize
)) != 0) {
3427 if (ret
== ENOENT
) {
3428 blocksize
= zfs_prop_default_numeric(
3429 ZFS_PROP_VOLBLOCKSIZE
);
3432 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
3433 "missing volume block size"));
3434 return (zfs_error(hdl
, EZFS_BADPROP
, errbuf
));
3440 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
3441 "volume size cannot be zero"));
3442 return (zfs_error(hdl
, EZFS_BADPROP
, errbuf
));
3445 if (size
% blocksize
!= 0) {
3447 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
3448 "volume size must be a multiple of volume block "
3450 return (zfs_error(hdl
, EZFS_BADPROP
, errbuf
));
3454 /* create the dataset */
3455 ret
= lzc_create(path
, ost
, props
);
3458 /* check for failure */
3460 char parent
[ZFS_MAX_DATASET_NAME_LEN
];
3461 (void) parent_name(path
, parent
, sizeof (parent
));
3465 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
3466 "no such parent '%s'"), parent
);
3467 return (zfs_error(hdl
, EZFS_NOENT
, errbuf
));
3470 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
3471 "parent '%s' is not a filesystem"), parent
);
3472 return (zfs_error(hdl
, EZFS_BADTYPE
, errbuf
));
3475 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
3476 "pool must be upgraded to set this "
3477 "property or value"));
3478 return (zfs_error(hdl
, EZFS_BADVERSION
, errbuf
));
3480 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
3481 "invalid property value(s) specified"));
3482 return (zfs_error(hdl
, EZFS_BADPROP
, errbuf
));
3486 * This platform can't address a volume this big.
3488 if (type
== ZFS_TYPE_VOLUME
)
3489 return (zfs_error(hdl
, EZFS_VOLTOOBIG
,
3494 return (zfs_standard_error(hdl
, errno
, errbuf
));
3502 * Destroys the given dataset. The caller must make sure that the filesystem
3503 * isn't mounted, and that there are no active dependents. If the file system
3504 * does not exist this function does nothing.
3507 zfs_destroy(zfs_handle_t
*zhp
, boolean_t defer
)
3509 zfs_cmd_t zc
= { 0 };
3511 if (zhp
->zfs_type
== ZFS_TYPE_BOOKMARK
) {
3512 nvlist_t
*nv
= fnvlist_alloc();
3513 fnvlist_add_boolean(nv
, zhp
->zfs_name
);
3514 int error
= lzc_destroy_bookmarks(nv
, NULL
);
3517 return (zfs_standard_error_fmt(zhp
->zfs_hdl
, errno
,
3518 dgettext(TEXT_DOMAIN
, "cannot destroy '%s'"),
3524 (void) strlcpy(zc
.zc_name
, zhp
->zfs_name
, sizeof (zc
.zc_name
));
3526 if (ZFS_IS_VOLUME(zhp
)) {
3527 zc
.zc_objset_type
= DMU_OST_ZVOL
;
3529 zc
.zc_objset_type
= DMU_OST_ZFS
;
3532 zc
.zc_defer_destroy
= defer
;
3533 if (zfs_ioctl(zhp
->zfs_hdl
, ZFS_IOC_DESTROY
, &zc
) != 0 &&
3535 return (zfs_standard_error_fmt(zhp
->zfs_hdl
, errno
,
3536 dgettext(TEXT_DOMAIN
, "cannot destroy '%s'"),
3540 remove_mountpoint(zhp
);
3545 struct destroydata
{
3547 const char *snapname
;
3551 zfs_check_snap_cb(zfs_handle_t
*zhp
, void *arg
)
3553 struct destroydata
*dd
= arg
;
3554 char name
[ZFS_MAX_DATASET_NAME_LEN
];
3557 (void) snprintf(name
, sizeof (name
),
3558 "%s@%s", zhp
->zfs_name
, dd
->snapname
);
3560 if (lzc_exists(name
))
3561 verify(nvlist_add_boolean(dd
->nvl
, name
) == 0);
3563 rv
= zfs_iter_filesystems(zhp
, zfs_check_snap_cb
, dd
);
3569 * Destroys all snapshots with the given name in zhp & descendants.
3572 zfs_destroy_snaps(zfs_handle_t
*zhp
, char *snapname
, boolean_t defer
)
3575 struct destroydata dd
= { 0 };
3577 dd
.snapname
= snapname
;
3578 verify(nvlist_alloc(&dd
.nvl
, NV_UNIQUE_NAME
, 0) == 0);
3579 (void) zfs_check_snap_cb(zfs_handle_dup(zhp
), &dd
);
3581 if (nvlist_empty(dd
.nvl
)) {
3582 ret
= zfs_standard_error_fmt(zhp
->zfs_hdl
, ENOENT
,
3583 dgettext(TEXT_DOMAIN
, "cannot destroy '%s@%s'"),
3584 zhp
->zfs_name
, snapname
);
3586 ret
= zfs_destroy_snaps_nvl(zhp
->zfs_hdl
, dd
.nvl
, defer
);
3588 nvlist_free(dd
.nvl
);
3593 * Destroys all the snapshots named in the nvlist.
3596 zfs_destroy_snaps_nvl(libzfs_handle_t
*hdl
, nvlist_t
*snaps
, boolean_t defer
)
3599 nvlist_t
*errlist
= NULL
;
3601 ret
= lzc_destroy_snaps(snaps
, defer
, &errlist
);
3604 nvlist_free(errlist
);
3608 if (nvlist_empty(errlist
)) {
3610 (void) snprintf(errbuf
, sizeof (errbuf
),
3611 dgettext(TEXT_DOMAIN
, "cannot destroy snapshots"));
3613 ret
= zfs_standard_error(hdl
, ret
, errbuf
);
3615 for (nvpair_t
*pair
= nvlist_next_nvpair(errlist
, NULL
);
3616 pair
!= NULL
; pair
= nvlist_next_nvpair(errlist
, pair
)) {
3618 (void) snprintf(errbuf
, sizeof (errbuf
),
3619 dgettext(TEXT_DOMAIN
, "cannot destroy snapshot %s"),
3622 switch (fnvpair_value_int32(pair
)) {
3625 dgettext(TEXT_DOMAIN
, "snapshot is cloned"));
3626 ret
= zfs_error(hdl
, EZFS_EXISTS
, errbuf
);
3629 ret
= zfs_standard_error(hdl
, errno
, errbuf
);
3634 nvlist_free(errlist
);
3639 * Clones the given dataset. The target must be of the same type as the source.
3642 zfs_clone(zfs_handle_t
*zhp
, const char *target
, nvlist_t
*props
)
3644 char parent
[ZFS_MAX_DATASET_NAME_LEN
];
3647 libzfs_handle_t
*hdl
= zhp
->zfs_hdl
;
3650 assert(zhp
->zfs_type
== ZFS_TYPE_SNAPSHOT
);
3652 (void) snprintf(errbuf
, sizeof (errbuf
), dgettext(TEXT_DOMAIN
,
3653 "cannot create '%s'"), target
);
3655 /* validate the target/clone name */
3656 if (!zfs_validate_name(hdl
, target
, ZFS_TYPE_FILESYSTEM
, B_TRUE
))
3657 return (zfs_error(hdl
, EZFS_INVALIDNAME
, errbuf
));
3659 /* validate parents exist */
3660 if (check_parents(hdl
, target
, &zoned
, B_FALSE
, NULL
) != 0)
3663 (void) parent_name(target
, parent
, sizeof (parent
));
3669 if (ZFS_IS_VOLUME(zhp
)) {
3670 type
= ZFS_TYPE_VOLUME
;
3672 type
= ZFS_TYPE_FILESYSTEM
;
3674 if ((props
= zfs_valid_proplist(hdl
, type
, props
, zoned
,
3675 zhp
, zhp
->zpool_hdl
, errbuf
)) == NULL
)
3679 ret
= lzc_clone(target
, zhp
->zfs_name
, props
);
3687 * The parent doesn't exist. We should have caught this
3688 * above, but there may a race condition that has since
3689 * destroyed the parent.
3691 * At this point, we don't know whether it's the source
3692 * that doesn't exist anymore, or whether the target
3693 * dataset doesn't exist.
3695 zfs_error_aux(zhp
->zfs_hdl
, dgettext(TEXT_DOMAIN
,
3696 "no such parent '%s'"), parent
);
3697 return (zfs_error(zhp
->zfs_hdl
, EZFS_NOENT
, errbuf
));
3700 zfs_error_aux(zhp
->zfs_hdl
, dgettext(TEXT_DOMAIN
,
3701 "source and target pools differ"));
3702 return (zfs_error(zhp
->zfs_hdl
, EZFS_CROSSTARGET
,
3706 return (zfs_standard_error(zhp
->zfs_hdl
, errno
,
3715 * Promotes the given clone fs to be the clone parent.
3718 zfs_promote(zfs_handle_t
*zhp
)
3720 libzfs_handle_t
*hdl
= zhp
->zfs_hdl
;
3721 char snapname
[ZFS_MAX_DATASET_NAME_LEN
];
3725 (void) snprintf(errbuf
, sizeof (errbuf
), dgettext(TEXT_DOMAIN
,
3726 "cannot promote '%s'"), zhp
->zfs_name
);
3728 if (zhp
->zfs_type
== ZFS_TYPE_SNAPSHOT
) {
3729 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
3730 "snapshots can not be promoted"));
3731 return (zfs_error(hdl
, EZFS_BADTYPE
, errbuf
));
3734 if (zhp
->zfs_dmustats
.dds_origin
[0] == '\0') {
3735 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
3736 "not a cloned filesystem"));
3737 return (zfs_error(hdl
, EZFS_BADTYPE
, errbuf
));
3740 ret
= lzc_promote(zhp
->zfs_name
, snapname
, sizeof (snapname
));
3745 /* There is a conflicting snapshot name. */
3746 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
3747 "conflicting snapshot '%s' from parent '%s'"),
3748 snapname
, zhp
->zfs_dmustats
.dds_origin
);
3749 return (zfs_error(hdl
, EZFS_EXISTS
, errbuf
));
3752 return (zfs_standard_error(hdl
, ret
, errbuf
));
3758 typedef struct snapdata
{
3760 const char *sd_snapname
;
3764 zfs_snapshot_cb(zfs_handle_t
*zhp
, void *arg
)
3766 snapdata_t
*sd
= arg
;
3767 char name
[ZFS_MAX_DATASET_NAME_LEN
];
3770 if (zfs_prop_get_int(zhp
, ZFS_PROP_INCONSISTENT
) == 0) {
3771 (void) snprintf(name
, sizeof (name
),
3772 "%s@%s", zfs_get_name(zhp
), sd
->sd_snapname
);
3774 fnvlist_add_boolean(sd
->sd_nvl
, name
);
3776 rv
= zfs_iter_filesystems(zhp
, zfs_snapshot_cb
, sd
);
3784 zfs_remap_indirects(libzfs_handle_t
*hdl
, const char *fs
)
3789 (void) snprintf(errbuf
, sizeof (errbuf
), dgettext(TEXT_DOMAIN
,
3790 "cannot remap filesystem '%s' "), fs
);
3792 err
= lzc_remap(fs
);
3795 (void) zfs_standard_error(hdl
, err
, errbuf
);
3802 * Creates snapshots. The keys in the snaps nvlist are the snapshots to be
3806 zfs_snapshot_nvl(libzfs_handle_t
*hdl
, nvlist_t
*snaps
, nvlist_t
*props
)
3813 (void) snprintf(errbuf
, sizeof (errbuf
), dgettext(TEXT_DOMAIN
,
3814 "cannot create snapshots "));
3817 while ((elem
= nvlist_next_nvpair(snaps
, elem
)) != NULL
) {
3818 const char *snapname
= nvpair_name(elem
);
3820 /* validate the target name */
3821 if (!zfs_validate_name(hdl
, snapname
, ZFS_TYPE_SNAPSHOT
,
3823 (void) snprintf(errbuf
, sizeof (errbuf
),
3824 dgettext(TEXT_DOMAIN
,
3825 "cannot create snapshot '%s'"), snapname
);
3826 return (zfs_error(hdl
, EZFS_INVALIDNAME
, errbuf
));
3831 * get pool handle for prop validation. assumes all snaps are in the
3832 * same pool, as does lzc_snapshot (below).
3834 char pool
[ZFS_MAX_DATASET_NAME_LEN
];
3835 elem
= nvlist_next_nvpair(snaps
, NULL
);
3836 (void) strlcpy(pool
, nvpair_name(elem
), sizeof (pool
));
3837 pool
[strcspn(pool
, "/@")] = '\0';
3838 zpool_handle_t
*zpool_hdl
= zpool_open(hdl
, pool
);
3840 if (props
!= NULL
&&
3841 (props
= zfs_valid_proplist(hdl
, ZFS_TYPE_SNAPSHOT
,
3842 props
, B_FALSE
, NULL
, zpool_hdl
, errbuf
)) == NULL
) {
3843 zpool_close(zpool_hdl
);
3846 zpool_close(zpool_hdl
);
3848 ret
= lzc_snapshot(snaps
, props
, &errors
);
3851 boolean_t printed
= B_FALSE
;
3852 for (elem
= nvlist_next_nvpair(errors
, NULL
);
3854 elem
= nvlist_next_nvpair(errors
, elem
)) {
3855 (void) snprintf(errbuf
, sizeof (errbuf
),
3856 dgettext(TEXT_DOMAIN
,
3857 "cannot create snapshot '%s'"), nvpair_name(elem
));
3858 (void) zfs_standard_error(hdl
,
3859 fnvpair_value_int32(elem
), errbuf
);
3865 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
3866 "multiple snapshots of same "
3868 (void) zfs_error(hdl
, EZFS_EXISTS
, errbuf
);
3872 (void) zfs_standard_error(hdl
, ret
, errbuf
);
3878 nvlist_free(errors
);
3883 zfs_snapshot(libzfs_handle_t
*hdl
, const char *path
, boolean_t recursive
,
3887 snapdata_t sd
= { 0 };
3888 char fsname
[ZFS_MAX_DATASET_NAME_LEN
];
3893 (void) snprintf(errbuf
, sizeof (errbuf
), dgettext(TEXT_DOMAIN
,
3894 "cannot snapshot %s"), path
);
3896 if (!zfs_validate_name(hdl
, path
, ZFS_TYPE_SNAPSHOT
, B_TRUE
))
3897 return (zfs_error(hdl
, EZFS_INVALIDNAME
, errbuf
));
3899 (void) strlcpy(fsname
, path
, sizeof (fsname
));
3900 cp
= strchr(fsname
, '@');
3902 sd
.sd_snapname
= cp
+ 1;
3904 if ((zhp
= zfs_open(hdl
, fsname
, ZFS_TYPE_FILESYSTEM
|
3905 ZFS_TYPE_VOLUME
)) == NULL
) {
3909 verify(nvlist_alloc(&sd
.sd_nvl
, NV_UNIQUE_NAME
, 0) == 0);
3911 (void) zfs_snapshot_cb(zfs_handle_dup(zhp
), &sd
);
3913 fnvlist_add_boolean(sd
.sd_nvl
, path
);
3916 ret
= zfs_snapshot_nvl(hdl
, sd
.sd_nvl
, props
);
3917 nvlist_free(sd
.sd_nvl
);
3923 * Destroy any more recent snapshots. We invoke this callback on any dependents
3924 * of the snapshot first. If the 'cb_dependent' member is non-zero, then this
3925 * is a dependent and we should just destroy it without checking the transaction
3928 typedef struct rollback_data
{
3929 const char *cb_target
; /* the snapshot */
3930 uint64_t cb_create
; /* creation time reference */
3936 rollback_destroy_dependent(zfs_handle_t
*zhp
, void *data
)
3938 rollback_data_t
*cbp
= data
;
3939 prop_changelist_t
*clp
;
3941 /* We must destroy this clone; first unmount it */
3942 clp
= changelist_gather(zhp
, ZFS_PROP_NAME
, 0,
3943 cbp
->cb_force
? MS_FORCE
: 0);
3944 if (clp
== NULL
|| changelist_prefix(clp
) != 0) {
3945 cbp
->cb_error
= B_TRUE
;
3949 if (zfs_destroy(zhp
, B_FALSE
) != 0)
3950 cbp
->cb_error
= B_TRUE
;
3952 changelist_remove(clp
, zhp
->zfs_name
);
3953 (void) changelist_postfix(clp
);
3954 changelist_free(clp
);
3961 rollback_destroy(zfs_handle_t
*zhp
, void *data
)
3963 rollback_data_t
*cbp
= data
;
3965 if (zfs_prop_get_int(zhp
, ZFS_PROP_CREATETXG
) > cbp
->cb_create
) {
3966 cbp
->cb_error
|= zfs_iter_dependents(zhp
, B_FALSE
,
3967 rollback_destroy_dependent
, cbp
);
3969 cbp
->cb_error
|= zfs_destroy(zhp
, B_FALSE
);
3977 * Given a dataset, rollback to a specific snapshot, discarding any
3978 * data changes since then and making it the active dataset.
3980 * Any snapshots and bookmarks more recent than the target are
3981 * destroyed, along with their dependents (i.e. clones).
3984 zfs_rollback(zfs_handle_t
*zhp
, zfs_handle_t
*snap
, boolean_t force
)
3986 rollback_data_t cb
= { 0 };
3988 boolean_t restore_resv
= 0;
3989 uint64_t old_volsize
= 0, new_volsize
;
3990 zfs_prop_t resv_prop
;
3992 assert(zhp
->zfs_type
== ZFS_TYPE_FILESYSTEM
||
3993 zhp
->zfs_type
== ZFS_TYPE_VOLUME
);
3996 * Destroy all recent snapshots and their dependents.
3998 cb
.cb_force
= force
;
3999 cb
.cb_target
= snap
->zfs_name
;
4000 cb
.cb_create
= zfs_prop_get_int(snap
, ZFS_PROP_CREATETXG
);
4001 (void) zfs_iter_snapshots(zhp
, B_FALSE
, rollback_destroy
, &cb
);
4002 (void) zfs_iter_bookmarks(zhp
, rollback_destroy
, &cb
);
4008 * Now that we have verified that the snapshot is the latest,
4009 * rollback to the given snapshot.
4012 if (zhp
->zfs_type
== ZFS_TYPE_VOLUME
) {
4013 if (zfs_which_resv_prop(zhp
, &resv_prop
) < 0)
4015 old_volsize
= zfs_prop_get_int(zhp
, ZFS_PROP_VOLSIZE
);
4017 (old_volsize
== zfs_prop_get_int(zhp
, resv_prop
));
4021 * Pass both the filesystem and the wanted snapshot names,
4022 * we would get an error back if the snapshot is destroyed or
4023 * a new snapshot is created before this request is processed.
4025 err
= lzc_rollback_to(zhp
->zfs_name
, snap
->zfs_name
);
4027 zfs_error_aux(zhp
->zfs_hdl
, dgettext(TEXT_DOMAIN
,
4028 "'%s' is not the latest snapshot"), snap
->zfs_name
);
4029 (void) zfs_error_fmt(zhp
->zfs_hdl
, EZFS_BUSY
,
4030 dgettext(TEXT_DOMAIN
, "cannot rollback '%s'"),
4033 } else if (err
!= 0) {
4034 (void) zfs_standard_error_fmt(zhp
->zfs_hdl
, errno
,
4035 dgettext(TEXT_DOMAIN
, "cannot rollback '%s'"),
4041 * For volumes, if the pre-rollback volsize matched the pre-
4042 * rollback reservation and the volsize has changed then set
4043 * the reservation property to the post-rollback volsize.
4044 * Make a new handle since the rollback closed the dataset.
4046 if ((zhp
->zfs_type
== ZFS_TYPE_VOLUME
) &&
4047 (zhp
= make_dataset_handle(zhp
->zfs_hdl
, zhp
->zfs_name
))) {
4049 new_volsize
= zfs_prop_get_int(zhp
, ZFS_PROP_VOLSIZE
);
4050 if (old_volsize
!= new_volsize
)
4051 err
= zfs_prop_set_int(zhp
, resv_prop
,
4060 * Renames the given dataset.
4063 zfs_rename(zfs_handle_t
*zhp
, const char *target
, boolean_t recursive
,
4064 boolean_t force_unmount
)
4067 zfs_cmd_t zc
= { 0 };
4069 prop_changelist_t
*cl
= NULL
;
4070 zfs_handle_t
*zhrp
= NULL
;
4071 char *parentname
= NULL
;
4072 char parent
[ZFS_MAX_DATASET_NAME_LEN
];
4073 libzfs_handle_t
*hdl
= zhp
->zfs_hdl
;
4076 /* if we have the same exact name, just return success */
4077 if (strcmp(zhp
->zfs_name
, target
) == 0)
4080 (void) snprintf(errbuf
, sizeof (errbuf
), dgettext(TEXT_DOMAIN
,
4081 "cannot rename to '%s'"), target
);
4084 * Make sure the target name is valid
4086 if (zhp
->zfs_type
== ZFS_TYPE_SNAPSHOT
) {
4087 if ((strchr(target
, '@') == NULL
) ||
4090 * Snapshot target name is abbreviated,
4091 * reconstruct full dataset name
4093 (void) strlcpy(parent
, zhp
->zfs_name
,
4095 delim
= strchr(parent
, '@');
4096 if (strchr(target
, '@') == NULL
)
4100 (void) strlcat(parent
, target
, sizeof (parent
));
4104 * Make sure we're renaming within the same dataset.
4106 delim
= strchr(target
, '@');
4107 if (strncmp(zhp
->zfs_name
, target
, delim
- target
)
4108 != 0 || zhp
->zfs_name
[delim
- target
] != '@') {
4109 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
4110 "snapshots must be part of same "
4112 return (zfs_error(hdl
, EZFS_CROSSTARGET
,
4116 if (!zfs_validate_name(hdl
, target
, zhp
->zfs_type
, B_TRUE
))
4117 return (zfs_error(hdl
, EZFS_INVALIDNAME
, errbuf
));
4120 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
4121 "recursive rename must be a snapshot"));
4122 return (zfs_error(hdl
, EZFS_BADTYPE
, errbuf
));
4125 if (!zfs_validate_name(hdl
, target
, zhp
->zfs_type
, B_TRUE
))
4126 return (zfs_error(hdl
, EZFS_INVALIDNAME
, errbuf
));
4128 /* validate parents */
4129 if (check_parents(hdl
, target
, NULL
, B_FALSE
, NULL
) != 0)
4132 /* make sure we're in the same pool */
4133 verify((delim
= strchr(target
, '/')) != NULL
);
4134 if (strncmp(zhp
->zfs_name
, target
, delim
- target
) != 0 ||
4135 zhp
->zfs_name
[delim
- target
] != '/') {
4136 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
4137 "datasets must be within same pool"));
4138 return (zfs_error(hdl
, EZFS_CROSSTARGET
, errbuf
));
4141 /* new name cannot be a child of the current dataset name */
4142 if (is_descendant(zhp
->zfs_name
, target
)) {
4143 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
4144 "New dataset name cannot be a descendant of "
4145 "current dataset name"));
4146 return (zfs_error(hdl
, EZFS_INVALIDNAME
, errbuf
));
4150 (void) snprintf(errbuf
, sizeof (errbuf
),
4151 dgettext(TEXT_DOMAIN
, "cannot rename '%s'"), zhp
->zfs_name
);
4153 if (getzoneid() == GLOBAL_ZONEID
&&
4154 zfs_prop_get_int(zhp
, ZFS_PROP_ZONED
)) {
4155 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
4156 "dataset is used in a non-global zone"));
4157 return (zfs_error(hdl
, EZFS_ZONED
, errbuf
));
4161 parentname
= zfs_strdup(zhp
->zfs_hdl
, zhp
->zfs_name
);
4162 if (parentname
== NULL
) {
4166 delim
= strchr(parentname
, '@');
4168 zhrp
= zfs_open(zhp
->zfs_hdl
, parentname
, ZFS_TYPE_DATASET
);
4173 } else if (zhp
->zfs_type
!= ZFS_TYPE_SNAPSHOT
) {
4174 if ((cl
= changelist_gather(zhp
, ZFS_PROP_NAME
, 0,
4175 force_unmount
? MS_FORCE
: 0)) == NULL
)
4178 if (changelist_haszonedchild(cl
)) {
4179 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
4180 "child dataset with inherited mountpoint is used "
4181 "in a non-global zone"));
4182 (void) zfs_error(hdl
, EZFS_ZONED
, errbuf
);
4187 if ((ret
= changelist_prefix(cl
)) != 0)
4191 if (ZFS_IS_VOLUME(zhp
))
4192 zc
.zc_objset_type
= DMU_OST_ZVOL
;
4194 zc
.zc_objset_type
= DMU_OST_ZFS
;
4196 (void) strlcpy(zc
.zc_name
, zhp
->zfs_name
, sizeof (zc
.zc_name
));
4197 (void) strlcpy(zc
.zc_value
, target
, sizeof (zc
.zc_value
));
4199 zc
.zc_cookie
= recursive
;
4201 if ((ret
= zfs_ioctl(zhp
->zfs_hdl
, ZFS_IOC_RENAME
, &zc
)) != 0) {
4203 * if it was recursive, the one that actually failed will
4206 (void) snprintf(errbuf
, sizeof (errbuf
), dgettext(TEXT_DOMAIN
,
4207 "cannot rename '%s'"), zc
.zc_name
);
4209 if (recursive
&& errno
== EEXIST
) {
4210 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
4211 "a child dataset already has a snapshot "
4212 "with the new name"));
4213 (void) zfs_error(hdl
, EZFS_EXISTS
, errbuf
);
4215 (void) zfs_standard_error(zhp
->zfs_hdl
, errno
, errbuf
);
4219 * On failure, we still want to remount any filesystems that
4220 * were previously mounted, so we don't alter the system state.
4223 (void) changelist_postfix(cl
);
4226 changelist_rename(cl
, zfs_get_name(zhp
), target
);
4227 ret
= changelist_postfix(cl
);
4232 if (parentname
!= NULL
) {
4239 changelist_free(cl
);
4245 zfs_get_user_props(zfs_handle_t
*zhp
)
4247 return (zhp
->zfs_user_props
);
4251 zfs_get_recvd_props(zfs_handle_t
*zhp
)
4253 if (zhp
->zfs_recvd_props
== NULL
)
4254 if (get_recvd_props_ioctl(zhp
) != 0)
4256 return (zhp
->zfs_recvd_props
);
4260 * This function is used by 'zfs list' to determine the exact set of columns to
4261 * display, and their maximum widths. This does two main things:
4263 * - If this is a list of all properties, then expand the list to include
4264 * all native properties, and set a flag so that for each dataset we look
4265 * for new unique user properties and add them to the list.
4267 * - For non fixed-width properties, keep track of the maximum width seen
4268 * so that we can size the column appropriately. If the user has
4269 * requested received property values, we also need to compute the width
4270 * of the RECEIVED column.
4273 zfs_expand_proplist(zfs_handle_t
*zhp
, zprop_list_t
**plp
, boolean_t received
,
4276 libzfs_handle_t
*hdl
= zhp
->zfs_hdl
;
4277 zprop_list_t
*entry
;
4278 zprop_list_t
**last
, **start
;
4279 nvlist_t
*userprops
, *propval
;
4282 char buf
[ZFS_MAXPROPLEN
];
4284 if (zprop_expand_list(hdl
, plp
, ZFS_TYPE_DATASET
) != 0)
4287 userprops
= zfs_get_user_props(zhp
);
4290 if (entry
->pl_all
&& nvlist_next_nvpair(userprops
, NULL
) != NULL
) {
4292 * Go through and add any user properties as necessary. We
4293 * start by incrementing our list pointer to the first
4294 * non-native property.
4297 while (*start
!= NULL
) {
4298 if ((*start
)->pl_prop
== ZPROP_INVAL
)
4300 start
= &(*start
)->pl_next
;
4304 while ((elem
= nvlist_next_nvpair(userprops
, elem
)) != NULL
) {
4306 * See if we've already found this property in our list.
4308 for (last
= start
; *last
!= NULL
;
4309 last
= &(*last
)->pl_next
) {
4310 if (strcmp((*last
)->pl_user_prop
,
4311 nvpair_name(elem
)) == 0)
4315 if (*last
== NULL
) {
4316 if ((entry
= zfs_alloc(hdl
,
4317 sizeof (zprop_list_t
))) == NULL
||
4318 ((entry
->pl_user_prop
= zfs_strdup(hdl
,
4319 nvpair_name(elem
)))) == NULL
) {
4324 entry
->pl_prop
= ZPROP_INVAL
;
4325 entry
->pl_width
= strlen(nvpair_name(elem
));
4326 entry
->pl_all
= B_TRUE
;
4333 * Now go through and check the width of any non-fixed columns
4335 for (entry
= *plp
; entry
!= NULL
; entry
= entry
->pl_next
) {
4336 if (entry
->pl_fixed
&& !literal
)
4339 if (entry
->pl_prop
!= ZPROP_INVAL
) {
4340 if (zfs_prop_get(zhp
, entry
->pl_prop
,
4341 buf
, sizeof (buf
), NULL
, NULL
, 0, literal
) == 0) {
4342 if (strlen(buf
) > entry
->pl_width
)
4343 entry
->pl_width
= strlen(buf
);
4345 if (received
&& zfs_prop_get_recvd(zhp
,
4346 zfs_prop_to_name(entry
->pl_prop
),
4347 buf
, sizeof (buf
), literal
) == 0)
4348 if (strlen(buf
) > entry
->pl_recvd_width
)
4349 entry
->pl_recvd_width
= strlen(buf
);
4351 if (nvlist_lookup_nvlist(userprops
, entry
->pl_user_prop
,
4353 verify(nvlist_lookup_string(propval
,
4354 ZPROP_VALUE
, &strval
) == 0);
4355 if (strlen(strval
) > entry
->pl_width
)
4356 entry
->pl_width
= strlen(strval
);
4358 if (received
&& zfs_prop_get_recvd(zhp
,
4359 entry
->pl_user_prop
,
4360 buf
, sizeof (buf
), literal
) == 0)
4361 if (strlen(buf
) > entry
->pl_recvd_width
)
4362 entry
->pl_recvd_width
= strlen(buf
);
4370 zfs_deleg_share_nfs(libzfs_handle_t
*hdl
, char *dataset
, char *path
,
4371 char *resource
, void *export
, void *sharetab
,
4372 int sharemax
, zfs_share_op_t operation
)
4374 zfs_cmd_t zc
= { 0 };
4377 (void) strlcpy(zc
.zc_name
, dataset
, sizeof (zc
.zc_name
));
4378 (void) strlcpy(zc
.zc_value
, path
, sizeof (zc
.zc_value
));
4380 (void) strlcpy(zc
.zc_string
, resource
, sizeof (zc
.zc_string
));
4381 zc
.zc_share
.z_sharedata
= (uint64_t)(uintptr_t)sharetab
;
4382 zc
.zc_share
.z_exportdata
= (uint64_t)(uintptr_t)export
;
4383 zc
.zc_share
.z_sharetype
= operation
;
4384 zc
.zc_share
.z_sharemax
= sharemax
;
4385 error
= ioctl(hdl
->libzfs_fd
, ZFS_IOC_SHARE
, &zc
);
4390 zfs_prune_proplist(zfs_handle_t
*zhp
, uint8_t *props
)
4395 * Keep a reference to the props-table against which we prune the
4398 zhp
->zfs_props_table
= props
;
4400 curr
= nvlist_next_nvpair(zhp
->zfs_props
, NULL
);
4403 zfs_prop_t zfs_prop
= zfs_name_to_prop(nvpair_name(curr
));
4404 nvpair_t
*next
= nvlist_next_nvpair(zhp
->zfs_props
, curr
);
4407 * User properties will result in ZPROP_INVAL, and since we
4408 * only know how to prune standard ZFS properties, we always
4409 * leave these in the list. This can also happen if we
4410 * encounter an unknown DSL property (when running older
4411 * software, for example).
4413 if (zfs_prop
!= ZPROP_INVAL
&& props
[zfs_prop
] == B_FALSE
)
4414 (void) nvlist_remove(zhp
->zfs_props
,
4415 nvpair_name(curr
), nvpair_type(curr
));
4421 zfs_smb_acl_mgmt(libzfs_handle_t
*hdl
, char *dataset
, char *path
,
4422 zfs_smb_acl_op_t cmd
, char *resource1
, char *resource2
)
4424 zfs_cmd_t zc
= { 0 };
4425 nvlist_t
*nvlist
= NULL
;
4428 (void) strlcpy(zc
.zc_name
, dataset
, sizeof (zc
.zc_name
));
4429 (void) strlcpy(zc
.zc_value
, path
, sizeof (zc
.zc_value
));
4430 zc
.zc_cookie
= (uint64_t)cmd
;
4432 if (cmd
== ZFS_SMB_ACL_RENAME
) {
4433 if (nvlist_alloc(&nvlist
, NV_UNIQUE_NAME
, 0) != 0) {
4434 (void) no_memory(hdl
);
4440 case ZFS_SMB_ACL_ADD
:
4441 case ZFS_SMB_ACL_REMOVE
:
4442 (void) strlcpy(zc
.zc_string
, resource1
, sizeof (zc
.zc_string
));
4444 case ZFS_SMB_ACL_RENAME
:
4445 if (nvlist_add_string(nvlist
, ZFS_SMB_ACL_SRC
,
4447 (void) no_memory(hdl
);
4450 if (nvlist_add_string(nvlist
, ZFS_SMB_ACL_TARGET
,
4452 (void) no_memory(hdl
);
4455 if (zcmd_write_src_nvlist(hdl
, &zc
, nvlist
) != 0) {
4456 nvlist_free(nvlist
);
4460 case ZFS_SMB_ACL_PURGE
:
4465 error
= ioctl(hdl
->libzfs_fd
, ZFS_IOC_SMB_ACL
, &zc
);
4466 nvlist_free(nvlist
);
4471 zfs_smb_acl_add(libzfs_handle_t
*hdl
, char *dataset
,
4472 char *path
, char *resource
)
4474 return (zfs_smb_acl_mgmt(hdl
, dataset
, path
, ZFS_SMB_ACL_ADD
,
4479 zfs_smb_acl_remove(libzfs_handle_t
*hdl
, char *dataset
,
4480 char *path
, char *resource
)
4482 return (zfs_smb_acl_mgmt(hdl
, dataset
, path
, ZFS_SMB_ACL_REMOVE
,
4487 zfs_smb_acl_purge(libzfs_handle_t
*hdl
, char *dataset
, char *path
)
4489 return (zfs_smb_acl_mgmt(hdl
, dataset
, path
, ZFS_SMB_ACL_PURGE
,
4494 zfs_smb_acl_rename(libzfs_handle_t
*hdl
, char *dataset
, char *path
,
4495 char *oldname
, char *newname
)
4497 return (zfs_smb_acl_mgmt(hdl
, dataset
, path
, ZFS_SMB_ACL_RENAME
,
4502 zfs_userspace(zfs_handle_t
*zhp
, zfs_userquota_prop_t type
,
4503 zfs_userspace_cb_t func
, void *arg
)
4505 zfs_cmd_t zc
= { 0 };
4506 zfs_useracct_t buf
[100];
4507 libzfs_handle_t
*hdl
= zhp
->zfs_hdl
;
4510 (void) strlcpy(zc
.zc_name
, zhp
->zfs_name
, sizeof (zc
.zc_name
));
4512 zc
.zc_objset_type
= type
;
4513 zc
.zc_nvlist_dst
= (uintptr_t)buf
;
4516 zfs_useracct_t
*zua
= buf
;
4518 zc
.zc_nvlist_dst_size
= sizeof (buf
);
4519 if (zfs_ioctl(hdl
, ZFS_IOC_USERSPACE_MANY
, &zc
) != 0) {
4522 (void) snprintf(errbuf
, sizeof (errbuf
),
4523 dgettext(TEXT_DOMAIN
,
4524 "cannot get used/quota for %s"), zc
.zc_name
);
4525 return (zfs_standard_error_fmt(hdl
, errno
, errbuf
));
4527 if (zc
.zc_nvlist_dst_size
== 0)
4530 while (zc
.zc_nvlist_dst_size
> 0) {
4531 if ((ret
= func(arg
, zua
->zu_domain
, zua
->zu_rid
,
4532 zua
->zu_space
)) != 0)
4535 zc
.zc_nvlist_dst_size
-= sizeof (zfs_useracct_t
);
4544 const char *snapname
;
4546 boolean_t recursive
;
4551 zfs_hold_one(zfs_handle_t
*zhp
, void *arg
)
4553 struct holdarg
*ha
= arg
;
4554 char name
[ZFS_MAX_DATASET_NAME_LEN
];
4557 (void) snprintf(name
, sizeof (name
),
4558 "%s@%s", zhp
->zfs_name
, ha
->snapname
);
4560 if (lzc_exists(name
))
4561 fnvlist_add_string(ha
->nvl
, name
, ha
->tag
);
4564 rv
= zfs_iter_filesystems(zhp
, zfs_hold_one
, ha
);
4570 zfs_hold(zfs_handle_t
*zhp
, const char *snapname
, const char *tag
,
4571 boolean_t recursive
, int cleanup_fd
)
4576 ha
.nvl
= fnvlist_alloc();
4577 ha
.snapname
= snapname
;
4579 ha
.recursive
= recursive
;
4580 (void) zfs_hold_one(zfs_handle_dup(zhp
), &ha
);
4582 if (nvlist_empty(ha
.nvl
)) {
4585 fnvlist_free(ha
.nvl
);
4587 (void) snprintf(errbuf
, sizeof (errbuf
),
4588 dgettext(TEXT_DOMAIN
,
4589 "cannot hold snapshot '%s@%s'"),
4590 zhp
->zfs_name
, snapname
);
4591 (void) zfs_standard_error(zhp
->zfs_hdl
, ret
, errbuf
);
4595 ret
= zfs_hold_nvl(zhp
, cleanup_fd
, ha
.nvl
);
4596 fnvlist_free(ha
.nvl
);
4602 zfs_hold_nvl(zfs_handle_t
*zhp
, int cleanup_fd
, nvlist_t
*holds
)
4606 libzfs_handle_t
*hdl
= zhp
->zfs_hdl
;
4611 ret
= lzc_hold(holds
, cleanup_fd
, &errors
);
4614 /* There may be errors even in the success case. */
4615 fnvlist_free(errors
);
4619 if (nvlist_empty(errors
)) {
4620 /* no hold-specific errors */
4621 (void) snprintf(errbuf
, sizeof (errbuf
),
4622 dgettext(TEXT_DOMAIN
, "cannot hold"));
4625 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
4626 "pool must be upgraded"));
4627 (void) zfs_error(hdl
, EZFS_BADVERSION
, errbuf
);
4630 (void) zfs_error(hdl
, EZFS_BADTYPE
, errbuf
);
4633 (void) zfs_standard_error(hdl
, ret
, errbuf
);
4637 for (elem
= nvlist_next_nvpair(errors
, NULL
);
4639 elem
= nvlist_next_nvpair(errors
, elem
)) {
4640 (void) snprintf(errbuf
, sizeof (errbuf
),
4641 dgettext(TEXT_DOMAIN
,
4642 "cannot hold snapshot '%s'"), nvpair_name(elem
));
4643 switch (fnvpair_value_int32(elem
)) {
4646 * Temporary tags wind up having the ds object id
4647 * prepended. So even if we passed the length check
4648 * above, it's still possible for the tag to wind
4649 * up being slightly too long.
4651 (void) zfs_error(hdl
, EZFS_TAGTOOLONG
, errbuf
);
4654 (void) zfs_error(hdl
, EZFS_BADTYPE
, errbuf
);
4657 (void) zfs_error(hdl
, EZFS_REFTAG_HOLD
, errbuf
);
4660 (void) zfs_standard_error(hdl
,
4661 fnvpair_value_int32(elem
), errbuf
);
4665 fnvlist_free(errors
);
4670 zfs_release_one(zfs_handle_t
*zhp
, void *arg
)
4672 struct holdarg
*ha
= arg
;
4673 char name
[ZFS_MAX_DATASET_NAME_LEN
];
4675 nvlist_t
*existing_holds
;
4677 (void) snprintf(name
, sizeof (name
),
4678 "%s@%s", zhp
->zfs_name
, ha
->snapname
);
4680 if (lzc_get_holds(name
, &existing_holds
) != 0) {
4682 } else if (!nvlist_exists(existing_holds
, ha
->tag
)) {
4685 nvlist_t
*torelease
= fnvlist_alloc();
4686 fnvlist_add_boolean(torelease
, ha
->tag
);
4687 fnvlist_add_nvlist(ha
->nvl
, name
, torelease
);
4688 fnvlist_free(torelease
);
4692 rv
= zfs_iter_filesystems(zhp
, zfs_release_one
, ha
);
4698 zfs_release(zfs_handle_t
*zhp
, const char *snapname
, const char *tag
,
4699 boolean_t recursive
)
4703 nvlist_t
*errors
= NULL
;
4705 libzfs_handle_t
*hdl
= zhp
->zfs_hdl
;
4708 ha
.nvl
= fnvlist_alloc();
4709 ha
.snapname
= snapname
;
4711 ha
.recursive
= recursive
;
4713 (void) zfs_release_one(zfs_handle_dup(zhp
), &ha
);
4715 if (nvlist_empty(ha
.nvl
)) {
4716 fnvlist_free(ha
.nvl
);
4718 (void) snprintf(errbuf
, sizeof (errbuf
),
4719 dgettext(TEXT_DOMAIN
,
4720 "cannot release hold from snapshot '%s@%s'"),
4721 zhp
->zfs_name
, snapname
);
4723 (void) zfs_error(hdl
, EZFS_REFTAG_RELE
, errbuf
);
4725 (void) zfs_standard_error(hdl
, ret
, errbuf
);
4730 ret
= lzc_release(ha
.nvl
, &errors
);
4731 fnvlist_free(ha
.nvl
);
4734 /* There may be errors even in the success case. */
4735 fnvlist_free(errors
);
4739 if (nvlist_empty(errors
)) {
4740 /* no hold-specific errors */
4741 (void) snprintf(errbuf
, sizeof (errbuf
), dgettext(TEXT_DOMAIN
,
4745 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
4746 "pool must be upgraded"));
4747 (void) zfs_error(hdl
, EZFS_BADVERSION
, errbuf
);
4750 (void) zfs_standard_error_fmt(hdl
, errno
, errbuf
);
4754 for (elem
= nvlist_next_nvpair(errors
, NULL
);
4756 elem
= nvlist_next_nvpair(errors
, elem
)) {
4757 (void) snprintf(errbuf
, sizeof (errbuf
),
4758 dgettext(TEXT_DOMAIN
,
4759 "cannot release hold from snapshot '%s'"),
4761 switch (fnvpair_value_int32(elem
)) {
4763 (void) zfs_error(hdl
, EZFS_REFTAG_RELE
, errbuf
);
4766 (void) zfs_error(hdl
, EZFS_BADTYPE
, errbuf
);
4769 (void) zfs_standard_error_fmt(hdl
,
4770 fnvpair_value_int32(elem
), errbuf
);
4774 fnvlist_free(errors
);
4779 zfs_get_fsacl(zfs_handle_t
*zhp
, nvlist_t
**nvl
)
4781 zfs_cmd_t zc
= { 0 };
4782 libzfs_handle_t
*hdl
= zhp
->zfs_hdl
;
4788 assert(zhp
->zfs_type
== ZFS_TYPE_VOLUME
||
4789 zhp
->zfs_type
== ZFS_TYPE_FILESYSTEM
);
4793 nvbuf
= malloc(nvsz
);
4794 if (nvbuf
== NULL
) {
4795 err
= (zfs_error(hdl
, EZFS_NOMEM
, strerror(errno
)));
4799 zc
.zc_nvlist_dst_size
= nvsz
;
4800 zc
.zc_nvlist_dst
= (uintptr_t)nvbuf
;
4802 (void) strlcpy(zc
.zc_name
, zhp
->zfs_name
, sizeof (zc
.zc_name
));
4804 if (ioctl(hdl
->libzfs_fd
, ZFS_IOC_GET_FSACL
, &zc
) != 0) {
4805 (void) snprintf(errbuf
, sizeof (errbuf
),
4806 dgettext(TEXT_DOMAIN
, "cannot get permissions on '%s'"),
4811 nvsz
= zc
.zc_nvlist_dst_size
;
4815 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
4816 "pool must be upgraded"));
4817 err
= zfs_error(hdl
, EZFS_BADVERSION
, errbuf
);
4820 err
= zfs_error(hdl
, EZFS_BADTYPE
, errbuf
);
4823 err
= zfs_error(hdl
, EZFS_NOENT
, errbuf
);
4826 err
= zfs_standard_error_fmt(hdl
, errno
, errbuf
);
4831 int rc
= nvlist_unpack(nvbuf
, zc
.zc_nvlist_dst_size
, nvl
, 0);
4833 (void) snprintf(errbuf
, sizeof (errbuf
), dgettext(
4834 TEXT_DOMAIN
, "cannot get permissions on '%s'"),
4836 err
= zfs_standard_error_fmt(hdl
, rc
, errbuf
);
4846 zfs_set_fsacl(zfs_handle_t
*zhp
, boolean_t un
, nvlist_t
*nvl
)
4848 zfs_cmd_t zc
= { 0 };
4849 libzfs_handle_t
*hdl
= zhp
->zfs_hdl
;
4855 assert(zhp
->zfs_type
== ZFS_TYPE_VOLUME
||
4856 zhp
->zfs_type
== ZFS_TYPE_FILESYSTEM
);
4858 err
= nvlist_size(nvl
, &nvsz
, NV_ENCODE_NATIVE
);
4861 nvbuf
= malloc(nvsz
);
4863 err
= nvlist_pack(nvl
, &nvbuf
, &nvsz
, NV_ENCODE_NATIVE
, 0);
4866 zc
.zc_nvlist_src_size
= nvsz
;
4867 zc
.zc_nvlist_src
= (uintptr_t)nvbuf
;
4868 zc
.zc_perm_action
= un
;
4870 (void) strlcpy(zc
.zc_name
, zhp
->zfs_name
, sizeof (zc
.zc_name
));
4872 if (zfs_ioctl(hdl
, ZFS_IOC_SET_FSACL
, &zc
) != 0) {
4873 (void) snprintf(errbuf
, sizeof (errbuf
),
4874 dgettext(TEXT_DOMAIN
, "cannot set permissions on '%s'"),
4878 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
4879 "pool must be upgraded"));
4880 err
= zfs_error(hdl
, EZFS_BADVERSION
, errbuf
);
4883 err
= zfs_error(hdl
, EZFS_BADTYPE
, errbuf
);
4886 err
= zfs_error(hdl
, EZFS_NOENT
, errbuf
);
4889 err
= zfs_standard_error_fmt(hdl
, errno
, errbuf
);
4900 zfs_get_holds(zfs_handle_t
*zhp
, nvlist_t
**nvl
)
4905 err
= lzc_get_holds(zhp
->zfs_name
, nvl
);
4908 libzfs_handle_t
*hdl
= zhp
->zfs_hdl
;
4910 (void) snprintf(errbuf
, sizeof (errbuf
),
4911 dgettext(TEXT_DOMAIN
, "cannot get holds for '%s'"),
4915 zfs_error_aux(hdl
, dgettext(TEXT_DOMAIN
,
4916 "pool must be upgraded"));
4917 err
= zfs_error(hdl
, EZFS_BADVERSION
, errbuf
);
4920 err
= zfs_error(hdl
, EZFS_BADTYPE
, errbuf
);
4923 err
= zfs_error(hdl
, EZFS_NOENT
, errbuf
);
4926 err
= zfs_standard_error_fmt(hdl
, errno
, errbuf
);
4935 * Convert the zvol's volume size to an appropriate reservation.
4936 * Note: If this routine is updated, it is necessary to update the ZFS test
4937 * suite's shell version in reservation.kshlib.
4940 zvol_volsize_to_reservation(uint64_t volsize
, nvlist_t
*props
)
4943 uint64_t nblocks
, volblocksize
;
4947 if (nvlist_lookup_string(props
,
4948 zfs_prop_to_name(ZFS_PROP_COPIES
), &strval
) == 0)
4949 ncopies
= atoi(strval
);
4952 if (nvlist_lookup_uint64(props
,
4953 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE
),
4954 &volblocksize
) != 0)
4955 volblocksize
= ZVOL_DEFAULT_BLOCKSIZE
;
4956 nblocks
= volsize
/volblocksize
;
4957 /* start with metadnode L0-L6 */
4959 /* calculate number of indirects */
4960 while (nblocks
> 1) {
4961 nblocks
+= DNODES_PER_LEVEL
- 1;
4962 nblocks
/= DNODES_PER_LEVEL
;
4965 numdb
*= MIN(SPA_DVAS_PER_BP
, ncopies
+ 1);
4968 * this is exactly DN_MAX_INDBLKSHIFT when metadata isn't
4969 * compressed, but in practice they compress down to about
4972 numdb
*= 1ULL << DN_MAX_INDBLKSHIFT
;