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]
22 * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
26 #include <sys/types.h>
27 #include <sys/param.h>
28 #include <sys/systm.h>
30 #include <sys/kernel.h>
32 #include <sys/malloc.h>
33 #include <sys/mutex.h>
35 #include <sys/errno.h>
41 #include <sys/cmn_err.h>
43 #include <sys/zfs_ioctl.h>
44 #include <sys/zfs_znode.h>
47 #include <sys/spa_impl.h>
49 #include <sys/vdev_impl.h>
51 #include <sys/dsl_dir.h>
52 #include <sys/dsl_dataset.h>
53 #include <sys/dsl_prop.h>
54 #include <sys/dsl_deleg.h>
55 #include <sys/dmu_objset.h>
56 #include <sys/sunddi.h>
57 #include <sys/policy.h>
59 #include <sys/nvpair.h>
60 #include <sys/mount.h>
61 #include <sys/taskqueue.h>
63 #include <sys/varargs.h>
64 #include <sys/fs/zfs.h>
65 #include <sys/zfs_ctldir.h>
66 #include <sys/zfs_dir.h>
68 #include <sys/dmu_objset.h>
70 #include "zfs_namecheck.h"
72 #include "zfs_deleg.h"
74 CTASSERT(sizeof(zfs_cmd_t) <= PAGE_SIZE);
76 static struct cdev *zfsdev;
78 extern void zfs_init(void);
79 extern void zfs_fini(void);
81 typedef int zfs_ioc_func_t(zfs_cmd_t *);
82 typedef int zfs_secpolicy_func_t(zfs_cmd_t *, cred_t *);
84 typedef struct zfs_ioc_vec {
85 zfs_ioc_func_t *zvec_func;
86 zfs_secpolicy_func_t *zvec_secpolicy;
92 boolean_t zvec_his_log;
95 static void clear_props(char *dataset, nvlist_t *props, nvlist_t *newprops);
96 static int zfs_fill_zplprops_root(uint64_t, nvlist_t *, nvlist_t *,
98 int zfs_set_prop_nvlist(const char *, nvlist_t *);
100 /* _NOTE(PRINTFLIKE(4)) - this is printf-like, but lint is too whiney */
102 __dprintf(const char *file, const char *func, int line, const char *fmt, ...)
109 * Get rid of annoying "../common/" prefix to filename.
111 newfile = strrchr(file, '/');
112 if (newfile != NULL) {
113 newfile = newfile + 1; /* Get rid of leading / */
119 (void) vsnprintf(buf, sizeof (buf), fmt, adx);
123 * To get this data, use the zfs-dprintf probe as so:
124 * dtrace -q -n 'zfs-dprintf \
125 * /stringof(arg0) == "dbuf.c"/ \
126 * {printf("%s: %s", stringof(arg1), stringof(arg3))}'
128 * arg1 = function name
132 DTRACE_PROBE4(zfs__dprintf,
133 char *, newfile, char *, func, int, line, char *, buf);
137 history_str_free(char *buf)
139 kmem_free(buf, HIS_MAX_RECORD_LEN);
143 history_str_get(zfs_cmd_t *zc)
147 if (zc->zc_history == 0)
150 buf = kmem_alloc(HIS_MAX_RECORD_LEN, KM_SLEEP);
151 if (copyinstr((void *)(uintptr_t)zc->zc_history,
152 buf, HIS_MAX_RECORD_LEN, NULL) != 0) {
153 history_str_free(buf);
157 buf[HIS_MAX_RECORD_LEN -1] = '\0';
163 * Check to see if the named dataset is currently defined as bootable
166 zfs_is_bootfs(const char *name)
169 boolean_t ret = B_FALSE;
171 if (spa_open(name, &spa, FTAG) == 0) {
172 if (spa->spa_bootfs) {
175 if (dmu_objset_open(name, DMU_OST_ZFS,
176 DS_MODE_USER | DS_MODE_READONLY, &os) == 0) {
177 ret = (dmu_objset_id(os) == spa->spa_bootfs);
178 dmu_objset_close(os);
181 spa_close(spa, FTAG);
187 * zfs_earlier_version
189 * Return non-zero if the spa version is less than requested version.
192 zfs_earlier_version(const char *name, int version)
196 if (spa_open(name, &spa, FTAG) == 0) {
197 if (spa_version(spa) < version) {
198 spa_close(spa, FTAG);
201 spa_close(spa, FTAG);
207 * zpl_earlier_version
209 * Return TRUE if the ZPL version is less than requested version.
212 zpl_earlier_version(const char *name, int version)
215 boolean_t rc = B_TRUE;
217 if (dmu_objset_open(name, DMU_OST_ANY,
218 DS_MODE_USER | DS_MODE_READONLY, &os) == 0) {
221 if (zfs_get_zplprop(os, ZFS_PROP_VERSION, &zplversion) == 0)
222 rc = zplversion < version;
223 dmu_objset_close(os);
229 zfs_log_history(zfs_cmd_t *zc)
234 if ((buf = history_str_get(zc)) == NULL)
237 if (spa_open(zc->zc_name, &spa, FTAG) == 0) {
238 if (spa_version(spa) >= SPA_VERSION_ZPOOL_HISTORY)
239 (void) spa_history_log(spa, buf, LOG_CMD_NORMAL);
240 spa_close(spa, FTAG);
242 history_str_free(buf);
246 * Policy for top-level read operations (list pools). Requires no privileges,
247 * and can be used in the local zone, as there is no associated dataset.
251 zfs_secpolicy_none(zfs_cmd_t *zc, cred_t *cr)
257 * Policy for dataset read operations (list children, get statistics). Requires
258 * no privileges, but must be visible in the local zone.
262 zfs_secpolicy_read(zfs_cmd_t *zc, cred_t *cr)
264 if (INGLOBALZONE(curthread) ||
265 zone_dataset_visible(zc->zc_name, NULL))
272 zfs_dozonecheck(const char *dataset, cred_t *cr)
278 * The dataset must be visible by this zone -- check this first
279 * so they don't see EPERM on something they shouldn't know about.
281 if (!INGLOBALZONE(curthread) &&
282 !zone_dataset_visible(dataset, &writable))
285 if (dsl_prop_get_integer(dataset, "jailed", &zoned, NULL))
288 if (INGLOBALZONE(curthread)) {
290 * If the fs is zoned, only root can access it from the
293 if (secpolicy_zfs(cr) && zoned)
297 * If we are in a local zone, the 'zoned' property must be set.
302 /* must be writable by this zone */
310 zfs_secpolicy_write_perms(const char *name, const char *perm, cred_t *cr)
314 error = zfs_dozonecheck(name, cr);
316 error = secpolicy_zfs(cr);
318 error = dsl_deleg_access(name, perm, cr);
324 zfs_secpolicy_setprop(const char *name, zfs_prop_t prop, cred_t *cr)
327 * Check permissions for special properties.
332 * Disallow setting of 'zoned' from within a local zone.
334 if (!INGLOBALZONE(curthread))
339 if (!INGLOBALZONE(curthread)) {
341 char setpoint[MAXNAMELEN];
343 * Unprivileged users are allowed to modify the
344 * quota on things *under* (ie. contained by)
345 * the thing they own.
347 if (dsl_prop_get_integer(name, "zoned", &zoned,
350 if (!zoned || strlen(name) <= strlen(setpoint))
356 return (zfs_secpolicy_write_perms(name, zfs_prop_to_name(prop), cr));
360 zfs_secpolicy_fsacl(zfs_cmd_t *zc, cred_t *cr)
364 error = zfs_dozonecheck(zc->zc_name, cr);
369 * permission to set permissions will be evaluated later in
370 * dsl_deleg_can_allow()
376 zfs_secpolicy_rollback(zfs_cmd_t *zc, cred_t *cr)
379 error = zfs_secpolicy_write_perms(zc->zc_name,
380 ZFS_DELEG_PERM_ROLLBACK, cr);
382 error = zfs_secpolicy_write_perms(zc->zc_name,
383 ZFS_DELEG_PERM_MOUNT, cr);
388 zfs_secpolicy_send(zfs_cmd_t *zc, cred_t *cr)
390 return (zfs_secpolicy_write_perms(zc->zc_name,
391 ZFS_DELEG_PERM_SEND, cr));
395 zfs_secpolicy_share(zfs_cmd_t *zc, cred_t *cr)
397 if (!INGLOBALZONE(curthread))
400 if (secpolicy_nfs(cr) == 0) {
406 if ((error = lookupname(zc->zc_value, UIO_SYSSPACE,
407 NO_FOLLOW, NULL, &vp)) != 0)
410 /* Now make sure mntpnt and dataset are ZFS */
412 if (strcmp(vp->v_vfsp->mnt_stat.f_fstypename, "zfs") != 0 ||
413 (strcmp((char *)refstr_value(vp->v_vfsp->vfs_resource),
414 zc->zc_name) != 0)) {
420 return (dsl_deleg_access(zc->zc_name,
421 ZFS_DELEG_PERM_SHARE, cr));
426 zfs_get_parent(const char *datasetname, char *parent, int parentsize)
431 * Remove the @bla or /bla from the end of the name to get the parent.
433 (void) strncpy(parent, datasetname, parentsize);
434 cp = strrchr(parent, '@');
438 cp = strrchr(parent, '/');
448 zfs_secpolicy_destroy_perms(const char *name, cred_t *cr)
452 if ((error = zfs_secpolicy_write_perms(name,
453 ZFS_DELEG_PERM_MOUNT, cr)) != 0)
456 return (zfs_secpolicy_write_perms(name, ZFS_DELEG_PERM_DESTROY, cr));
460 zfs_secpolicy_destroy(zfs_cmd_t *zc, cred_t *cr)
462 return (zfs_secpolicy_destroy_perms(zc->zc_name, cr));
466 * Must have sys_config privilege to check the iscsi permission
470 zfs_secpolicy_iscsi(zfs_cmd_t *zc, cred_t *cr)
472 return (secpolicy_zfs(cr));
476 zfs_secpolicy_rename_perms(const char *from, const char *to, cred_t *cr)
478 char parentname[MAXNAMELEN];
481 if ((error = zfs_secpolicy_write_perms(from,
482 ZFS_DELEG_PERM_RENAME, cr)) != 0)
485 if ((error = zfs_secpolicy_write_perms(from,
486 ZFS_DELEG_PERM_MOUNT, cr)) != 0)
489 if ((error = zfs_get_parent(to, parentname,
490 sizeof (parentname))) != 0)
493 if ((error = zfs_secpolicy_write_perms(parentname,
494 ZFS_DELEG_PERM_CREATE, cr)) != 0)
497 if ((error = zfs_secpolicy_write_perms(parentname,
498 ZFS_DELEG_PERM_MOUNT, cr)) != 0)
505 zfs_secpolicy_rename(zfs_cmd_t *zc, cred_t *cr)
507 return (zfs_secpolicy_rename_perms(zc->zc_name, zc->zc_value, cr));
511 zfs_secpolicy_promote(zfs_cmd_t *zc, cred_t *cr)
513 char parentname[MAXNAMELEN];
517 error = zfs_secpolicy_write_perms(zc->zc_name,
518 ZFS_DELEG_PERM_PROMOTE, cr);
522 error = dmu_objset_open(zc->zc_name, DMU_OST_ANY,
523 DS_MODE_USER | DS_MODE_READONLY, &clone);
526 dsl_dataset_t *pclone = NULL;
528 dd = clone->os->os_dsl_dataset->ds_dir;
530 rw_enter(&dd->dd_pool->dp_config_rwlock, RW_READER);
531 error = dsl_dataset_hold_obj(dd->dd_pool,
532 dd->dd_phys->dd_origin_obj, FTAG, &pclone);
533 rw_exit(&dd->dd_pool->dp_config_rwlock);
535 dmu_objset_close(clone);
539 error = zfs_secpolicy_write_perms(zc->zc_name,
540 ZFS_DELEG_PERM_MOUNT, cr);
542 dsl_dataset_name(pclone, parentname);
543 dmu_objset_close(clone);
544 dsl_dataset_rele(pclone, FTAG);
546 error = zfs_secpolicy_write_perms(parentname,
547 ZFS_DELEG_PERM_PROMOTE, cr);
553 zfs_secpolicy_receive(zfs_cmd_t *zc, cred_t *cr)
557 if ((error = zfs_secpolicy_write_perms(zc->zc_name,
558 ZFS_DELEG_PERM_RECEIVE, cr)) != 0)
561 if ((error = zfs_secpolicy_write_perms(zc->zc_name,
562 ZFS_DELEG_PERM_MOUNT, cr)) != 0)
565 return (zfs_secpolicy_write_perms(zc->zc_name,
566 ZFS_DELEG_PERM_CREATE, cr));
570 zfs_secpolicy_snapshot_perms(const char *name, cred_t *cr)
574 if ((error = zfs_secpolicy_write_perms(name,
575 ZFS_DELEG_PERM_SNAPSHOT, cr)) != 0)
578 error = zfs_secpolicy_write_perms(name,
579 ZFS_DELEG_PERM_MOUNT, cr);
585 zfs_secpolicy_snapshot(zfs_cmd_t *zc, cred_t *cr)
588 return (zfs_secpolicy_snapshot_perms(zc->zc_name, cr));
592 zfs_secpolicy_create(zfs_cmd_t *zc, cred_t *cr)
594 char parentname[MAXNAMELEN];
597 if ((error = zfs_get_parent(zc->zc_name, parentname,
598 sizeof (parentname))) != 0)
601 if (zc->zc_value[0] != '\0') {
602 if ((error = zfs_secpolicy_write_perms(zc->zc_value,
603 ZFS_DELEG_PERM_CLONE, cr)) != 0)
607 if ((error = zfs_secpolicy_write_perms(parentname,
608 ZFS_DELEG_PERM_CREATE, cr)) != 0)
611 error = zfs_secpolicy_write_perms(parentname,
612 ZFS_DELEG_PERM_MOUNT, cr);
618 zfs_secpolicy_umount(zfs_cmd_t *zc, cred_t *cr)
622 error = secpolicy_fs_unmount(cr, NULL);
624 error = dsl_deleg_access(zc->zc_name, ZFS_DELEG_PERM_MOUNT, cr);
630 * Policy for pool operations - create/destroy pools, add vdevs, etc. Requires
631 * SYS_CONFIG privilege, which is not available in a local zone.
635 zfs_secpolicy_config(zfs_cmd_t *zc, cred_t *cr)
637 if (secpolicy_sys_config(cr, B_FALSE) != 0)
644 * Just like zfs_secpolicy_config, except that we will check for
645 * mount permission on the dataset for permission to create/remove
649 zfs_secpolicy_minor(zfs_cmd_t *zc, cred_t *cr)
651 if (secpolicy_sys_config(cr, B_FALSE) != 0) {
652 return (dsl_deleg_access(zc->zc_name,
653 ZFS_DELEG_PERM_MOUNT, cr));
660 * Policy for fault injection. Requires all privileges.
664 zfs_secpolicy_inject(zfs_cmd_t *zc, cred_t *cr)
666 return (secpolicy_zinject(cr));
670 zfs_secpolicy_inherit(zfs_cmd_t *zc, cred_t *cr)
672 zfs_prop_t prop = zfs_name_to_prop(zc->zc_value);
674 if (prop == ZPROP_INVAL) {
675 if (!zfs_prop_user(zc->zc_value))
677 return (zfs_secpolicy_write_perms(zc->zc_name,
678 ZFS_DELEG_PERM_USERPROP, cr));
680 if (!zfs_prop_inheritable(prop))
682 return (zfs_secpolicy_setprop(zc->zc_name, prop, cr));
687 * Policy for dataset backup operations (sendbackup).
688 * Requires SYS_MOUNT privilege, and must be writable in the local zone.
691 zfs_secpolicy_operator(const char *dataset, cred_t *cr)
695 if (!INGLOBALZONE(curthread) && !zone_dataset_visible(dataset, &writable))
697 if (secpolicy_zfs(cr) != 0 && !groupmember(GID_OPERATOR, cr))
703 * Returns the nvlist as specified by the user in the zfs_cmd_t.
706 get_nvlist(uint64_t nvl, uint64_t size, nvlist_t **nvp)
710 nvlist_t *list = NULL;
713 * Read in and unpack the user-supplied nvlist.
718 packed = kmem_alloc(size, KM_SLEEP);
720 if ((error = xcopyin((void *)(uintptr_t)nvl, packed, size)) != 0) {
721 kmem_free(packed, size);
725 if ((error = nvlist_unpack(packed, size, &list, 0)) != 0) {
726 kmem_free(packed, size);
730 kmem_free(packed, size);
737 put_nvlist(zfs_cmd_t *zc, nvlist_t *nvl)
743 VERIFY(nvlist_size(nvl, &size, NV_ENCODE_NATIVE) == 0);
745 if (size > zc->zc_nvlist_dst_size) {
747 * Solaris returns ENOMEM here, because even if an error is
748 * returned from an ioctl(2), new zc_nvlist_dst_size will be
749 * passed to the userland. This is not the case for FreeBSD.
750 * We need to return 0, so the kernel will copy the
751 * zc_nvlist_dst_size back and the userland can discover that a
752 * bigger buffer is needed.
756 packed = kmem_alloc(size, KM_SLEEP);
757 VERIFY(nvlist_pack(nvl, &packed, &size, NV_ENCODE_NATIVE,
759 error = xcopyout(packed, (void *)(uintptr_t)zc->zc_nvlist_dst,
761 kmem_free(packed, size);
764 zc->zc_nvlist_dst_size = size;
769 zfs_ioc_pool_create(zfs_cmd_t *zc)
772 nvlist_t *config, *props = NULL;
773 nvlist_t *rootprops = NULL;
774 nvlist_t *zplprops = NULL;
777 if (error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
781 if (zc->zc_nvlist_src_size != 0 && (error =
782 get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, &props))) {
788 nvlist_t *nvl = NULL;
789 uint64_t version = SPA_VERSION;
791 (void) nvlist_lookup_uint64(props,
792 zpool_prop_to_name(ZPOOL_PROP_VERSION), &version);
793 if (version < SPA_VERSION_INITIAL || version > SPA_VERSION) {
797 (void) nvlist_lookup_nvlist(props, ZPOOL_ROOTFS_PROPS, &nvl);
799 error = nvlist_dup(nvl, &rootprops, KM_SLEEP);
805 (void) nvlist_remove_all(props, ZPOOL_ROOTFS_PROPS);
807 VERIFY(nvlist_alloc(&zplprops, NV_UNIQUE_NAME, KM_SLEEP) == 0);
808 error = zfs_fill_zplprops_root(version, rootprops,
814 buf = history_str_get(zc);
816 error = spa_create(zc->zc_name, config, props, buf, zplprops);
819 * Set the remaining root properties
822 (error = zfs_set_prop_nvlist(zc->zc_name, rootprops)) != 0)
823 (void) spa_destroy(zc->zc_name);
826 history_str_free(buf);
829 nvlist_free(rootprops);
830 nvlist_free(zplprops);
838 zfs_ioc_pool_destroy(zfs_cmd_t *zc)
842 error = spa_destroy(zc->zc_name);
847 zfs_ioc_pool_import(zfs_cmd_t *zc)
850 nvlist_t *config, *props = NULL;
853 if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
857 if (zc->zc_nvlist_src_size != 0 && (error =
858 get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, &props))) {
863 if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &guid) != 0 ||
866 else if (zc->zc_cookie)
867 error = spa_import_faulted(zc->zc_name, config,
870 error = spa_import(zc->zc_name, config, props);
881 zfs_ioc_pool_export(zfs_cmd_t *zc)
884 boolean_t force = (boolean_t)zc->zc_cookie;
885 boolean_t hardforce = (boolean_t)zc->zc_guid;
888 error = spa_export(zc->zc_name, NULL, force, hardforce);
893 zfs_ioc_pool_configs(zfs_cmd_t *zc)
898 if ((configs = spa_all_configs(&zc->zc_cookie)) == NULL)
901 error = put_nvlist(zc, configs);
903 nvlist_free(configs);
909 zfs_ioc_pool_stats(zfs_cmd_t *zc)
915 error = spa_get_stats(zc->zc_name, &config, zc->zc_value,
916 sizeof (zc->zc_value));
918 if (config != NULL) {
919 ret = put_nvlist(zc, config);
923 * The config may be present even if 'error' is non-zero.
924 * In this case we return success, and preserve the real errno
927 zc->zc_cookie = error;
936 * Try to import the given pool, returning pool stats as appropriate so that
937 * user land knows which devices are available and overall pool health.
940 zfs_ioc_pool_tryimport(zfs_cmd_t *zc)
942 nvlist_t *tryconfig, *config;
945 if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
949 config = spa_tryimport(tryconfig);
951 nvlist_free(tryconfig);
956 error = put_nvlist(zc, config);
963 zfs_ioc_pool_scrub(zfs_cmd_t *zc)
968 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
971 error = spa_scrub(spa, zc->zc_cookie);
973 spa_close(spa, FTAG);
979 zfs_ioc_pool_freeze(zfs_cmd_t *zc)
984 error = spa_open(zc->zc_name, &spa, FTAG);
987 spa_close(spa, FTAG);
993 zfs_ioc_pool_upgrade(zfs_cmd_t *zc)
998 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
1001 if (zc->zc_cookie < spa_version(spa) || zc->zc_cookie > SPA_VERSION) {
1002 spa_close(spa, FTAG);
1006 spa_upgrade(spa, zc->zc_cookie);
1007 spa_close(spa, FTAG);
1013 zfs_ioc_pool_get_history(zfs_cmd_t *zc)
1020 if ((size = zc->zc_history_len) == 0)
1023 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
1026 if (spa_version(spa) < SPA_VERSION_ZPOOL_HISTORY) {
1027 spa_close(spa, FTAG);
1031 hist_buf = kmem_alloc(size, KM_SLEEP);
1032 if ((error = spa_history_get(spa, &zc->zc_history_offset,
1033 &zc->zc_history_len, hist_buf)) == 0) {
1034 error = xcopyout(hist_buf,
1035 (char *)(uintptr_t)zc->zc_history,
1036 zc->zc_history_len);
1039 spa_close(spa, FTAG);
1040 kmem_free(hist_buf, size);
1045 zfs_ioc_dsobj_to_dsname(zfs_cmd_t *zc)
1049 if (error = dsl_dsobj_to_dsname(zc->zc_name, zc->zc_obj, zc->zc_value))
1056 zfs_ioc_obj_to_path(zfs_cmd_t *zc)
1061 if ((error = dmu_objset_open(zc->zc_name, DMU_OST_ZFS,
1062 DS_MODE_USER | DS_MODE_READONLY, &osp)) != 0)
1064 error = zfs_obj_to_path(osp, zc->zc_obj, zc->zc_value,
1065 sizeof (zc->zc_value));
1066 dmu_objset_close(osp);
1072 zfs_ioc_vdev_add(zfs_cmd_t *zc)
1076 nvlist_t *config, **l2cache, **spares;
1077 uint_t nl2cache = 0, nspares = 0;
1079 error = spa_open(zc->zc_name, &spa, FTAG);
1083 error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
1085 (void) nvlist_lookup_nvlist_array(config, ZPOOL_CONFIG_L2CACHE,
1086 &l2cache, &nl2cache);
1088 (void) nvlist_lookup_nvlist_array(config, ZPOOL_CONFIG_SPARES,
1092 * A root pool with concatenated devices is not supported.
1093 * Thus, can not add a device to a root pool.
1095 * Intent log device can not be added to a rootpool because
1096 * during mountroot, zil is replayed, a seperated log device
1097 * can not be accessed during the mountroot time.
1099 * l2cache and spare devices are ok to be added to a rootpool.
1101 if (spa->spa_bootfs != 0 && nl2cache == 0 && nspares == 0) {
1102 spa_close(spa, FTAG);
1107 error = spa_vdev_add(spa, config);
1108 nvlist_free(config);
1110 spa_close(spa, FTAG);
1115 zfs_ioc_vdev_remove(zfs_cmd_t *zc)
1120 error = spa_open(zc->zc_name, &spa, FTAG);
1123 error = spa_vdev_remove(spa, zc->zc_guid, B_FALSE);
1124 spa_close(spa, FTAG);
1129 zfs_ioc_vdev_set_state(zfs_cmd_t *zc)
1133 vdev_state_t newstate = VDEV_STATE_UNKNOWN;
1135 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
1137 switch (zc->zc_cookie) {
1138 case VDEV_STATE_ONLINE:
1139 error = vdev_online(spa, zc->zc_guid, zc->zc_obj, &newstate);
1142 case VDEV_STATE_OFFLINE:
1143 error = vdev_offline(spa, zc->zc_guid, zc->zc_obj);
1146 case VDEV_STATE_FAULTED:
1147 error = vdev_fault(spa, zc->zc_guid);
1150 case VDEV_STATE_DEGRADED:
1151 error = vdev_degrade(spa, zc->zc_guid);
1157 zc->zc_cookie = newstate;
1158 spa_close(spa, FTAG);
1163 zfs_ioc_vdev_attach(zfs_cmd_t *zc)
1166 int replacing = zc->zc_cookie;
1170 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
1173 if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
1175 error = spa_vdev_attach(spa, zc->zc_guid, config, replacing);
1176 nvlist_free(config);
1179 spa_close(spa, FTAG);
1184 zfs_ioc_vdev_detach(zfs_cmd_t *zc)
1189 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
1192 error = spa_vdev_detach(spa, zc->zc_guid, B_FALSE);
1194 spa_close(spa, FTAG);
1199 zfs_ioc_vdev_setpath(zfs_cmd_t *zc)
1202 char *path = zc->zc_value;
1203 uint64_t guid = zc->zc_guid;
1206 error = spa_open(zc->zc_name, &spa, FTAG);
1210 error = spa_vdev_setpath(spa, guid, path);
1211 spa_close(spa, FTAG);
1217 * zc_name name of filesystem
1218 * zc_nvlist_dst_size size of buffer for property nvlist
1221 * zc_objset_stats stats
1222 * zc_nvlist_dst property nvlist
1223 * zc_nvlist_dst_size size of property nvlist
1226 zfs_ioc_objset_stats(zfs_cmd_t *zc)
1228 objset_t *os = NULL;
1232 if (error = dmu_objset_open(zc->zc_name,
1233 DMU_OST_ANY, DS_MODE_USER | DS_MODE_READONLY, &os))
1236 dmu_objset_fast_stat(os, &zc->zc_objset_stats);
1238 if (zc->zc_nvlist_dst != 0 &&
1239 (error = dsl_prop_get_all(os, &nv, FALSE)) == 0) {
1240 dmu_objset_stats(os, nv);
1242 * NB: zvol_get_stats() will read the objset contents,
1243 * which we aren't supposed to do with a
1244 * DS_MODE_USER hold, because it could be
1245 * inconsistent. So this is a bit of a workaround...
1247 if (!zc->zc_objset_stats.dds_inconsistent) {
1248 if (dmu_objset_type(os) == DMU_OST_ZVOL)
1249 VERIFY(zvol_get_stats(os, nv) == 0);
1251 error = put_nvlist(zc, nv);
1255 dmu_objset_close(os);
1256 if (error == ENOMEM)
1262 nvl_add_zplprop(objset_t *os, nvlist_t *props, zfs_prop_t prop)
1268 * zfs_get_zplprop() will either find a value or give us
1269 * the default value (if there is one).
1271 if ((error = zfs_get_zplprop(os, prop, &value)) != 0)
1273 VERIFY(nvlist_add_uint64(props, zfs_prop_to_name(prop), value) == 0);
1279 * zc_name name of filesystem
1280 * zc_nvlist_dst_size size of buffer for zpl property nvlist
1283 * zc_nvlist_dst zpl property nvlist
1284 * zc_nvlist_dst_size size of zpl property nvlist
1287 zfs_ioc_objset_zplprops(zfs_cmd_t *zc)
1292 if (err = dmu_objset_open(zc->zc_name,
1293 DMU_OST_ANY, DS_MODE_USER | DS_MODE_READONLY, &os))
1296 dmu_objset_fast_stat(os, &zc->zc_objset_stats);
1299 * NB: nvl_add_zplprop() will read the objset contents,
1300 * which we aren't supposed to do with a DS_MODE_USER
1301 * hold, because it could be inconsistent.
1303 if (zc->zc_nvlist_dst != 0 &&
1304 !zc->zc_objset_stats.dds_inconsistent &&
1305 dmu_objset_type(os) == DMU_OST_ZFS) {
1308 VERIFY(nvlist_alloc(&nv, NV_UNIQUE_NAME, KM_SLEEP) == 0);
1309 if ((err = nvl_add_zplprop(os, nv, ZFS_PROP_VERSION)) == 0 &&
1310 (err = nvl_add_zplprop(os, nv, ZFS_PROP_NORMALIZE)) == 0 &&
1311 (err = nvl_add_zplprop(os, nv, ZFS_PROP_UTF8ONLY)) == 0 &&
1312 (err = nvl_add_zplprop(os, nv, ZFS_PROP_CASE)) == 0)
1313 err = put_nvlist(zc, nv);
1318 dmu_objset_close(os);
1324 * zc_name name of filesystem
1325 * zc_cookie zap cursor
1326 * zc_nvlist_dst_size size of buffer for property nvlist
1329 * zc_name name of next filesystem
1330 * zc_objset_stats stats
1331 * zc_nvlist_dst property nvlist
1332 * zc_nvlist_dst_size size of property nvlist
1335 zfs_ioc_dataset_list_next(zfs_cmd_t *zc)
1341 if (error = dmu_objset_open(zc->zc_name,
1342 DMU_OST_ANY, DS_MODE_USER | DS_MODE_READONLY, &os)) {
1343 if (error == ENOENT)
1348 p = strrchr(zc->zc_name, '/');
1349 if (p == NULL || p[1] != '\0')
1350 (void) strlcat(zc->zc_name, "/", sizeof (zc->zc_name));
1351 p = zc->zc_name + strlen(zc->zc_name);
1353 if (zc->zc_cookie == 0) {
1354 uint64_t cookie = 0;
1355 int len = sizeof (zc->zc_name) - (p - zc->zc_name);
1357 while (dmu_dir_list_next(os, len, p, NULL, &cookie) == 0)
1358 dmu_objset_prefetch(p, NULL);
1362 error = dmu_dir_list_next(os,
1363 sizeof (zc->zc_name) - (p - zc->zc_name), p,
1364 NULL, &zc->zc_cookie);
1365 if (error == ENOENT)
1367 } while (error == 0 && !INGLOBALZONE(curthread) &&
1368 !zone_dataset_visible(zc->zc_name, NULL));
1369 dmu_objset_close(os);
1372 * If it's a hidden dataset (ie. with a '$' in its name), don't
1373 * try to get stats for it. Userland will skip over it.
1375 if (error == 0 && strchr(zc->zc_name, '$') == NULL)
1376 error = zfs_ioc_objset_stats(zc); /* fill in the stats */
1383 * zc_name name of filesystem
1384 * zc_cookie zap cursor
1385 * zc_nvlist_dst_size size of buffer for property nvlist
1388 * zc_name name of next snapshot
1389 * zc_objset_stats stats
1390 * zc_nvlist_dst property nvlist
1391 * zc_nvlist_dst_size size of property nvlist
1394 zfs_ioc_snapshot_list_next(zfs_cmd_t *zc)
1399 if (zc->zc_cookie == 0)
1400 dmu_objset_find(zc->zc_name, dmu_objset_prefetch,
1401 NULL, DS_FIND_SNAPSHOTS);
1402 error = dmu_objset_open(zc->zc_name,
1403 DMU_OST_ANY, DS_MODE_USER | DS_MODE_READONLY, &os);
1405 return (error == ENOENT ? ESRCH : error);
1408 * A dataset name of maximum length cannot have any snapshots,
1409 * so exit immediately.
1411 if (strlcat(zc->zc_name, "@", sizeof (zc->zc_name)) >= MAXNAMELEN) {
1412 dmu_objset_close(os);
1416 error = dmu_snapshot_list_next(os,
1417 sizeof (zc->zc_name) - strlen(zc->zc_name),
1418 zc->zc_name + strlen(zc->zc_name), NULL, &zc->zc_cookie, NULL);
1419 dmu_objset_close(os);
1421 error = zfs_ioc_objset_stats(zc); /* fill in the stats */
1422 else if (error == ENOENT)
1425 /* if we failed, undo the @ that we tacked on to zc_name */
1427 *strchr(zc->zc_name, '@') = '\0';
1432 zfs_set_prop_nvlist(const char *name, nvlist_t *nvl)
1440 * First validate permission to set all of the properties
1443 while ((elem = nvlist_next_nvpair(nvl, elem)) != NULL) {
1444 const char *propname = nvpair_name(elem);
1445 zfs_prop_t prop = zfs_name_to_prop(propname);
1447 if (prop == ZPROP_INVAL) {
1449 * If this is a user-defined property, it must be a
1450 * string, and there is no further validation to do.
1452 if (!zfs_prop_user(propname) ||
1453 nvpair_type(elem) != DATA_TYPE_STRING)
1456 if (error = zfs_secpolicy_write_perms(name,
1457 ZFS_DELEG_PERM_USERPROP, CRED()))
1462 if ((error = zfs_secpolicy_setprop(name, prop, CRED())) != 0)
1466 * Check that this value is valid for this pool version
1469 case ZFS_PROP_COMPRESSION:
1471 * If the user specified gzip compression, make sure
1472 * the SPA supports it. We ignore any errors here since
1473 * we'll catch them later.
1475 if (nvpair_type(elem) == DATA_TYPE_UINT64 &&
1476 nvpair_value_uint64(elem, &intval) == 0) {
1477 if (intval >= ZIO_COMPRESS_GZIP_1 &&
1478 intval <= ZIO_COMPRESS_GZIP_9 &&
1479 zfs_earlier_version(name,
1480 SPA_VERSION_GZIP_COMPRESSION))
1484 * If this is a bootable dataset then
1485 * verify that the compression algorithm
1486 * is supported for booting. We must return
1487 * something other than ENOTSUP since it
1488 * implies a downrev pool version.
1490 if (zfs_is_bootfs(name) &&
1491 !BOOTFS_COMPRESS_VALID(intval))
1496 case ZFS_PROP_COPIES:
1497 if (zfs_earlier_version(name,
1498 SPA_VERSION_DITTO_BLOCKS))
1502 case ZFS_PROP_SHARESMB:
1503 if (zpl_earlier_version(name, ZPL_VERSION_FUID))
1507 case ZFS_PROP_ACLINHERIT:
1508 if (nvpair_type(elem) == DATA_TYPE_UINT64 &&
1509 nvpair_value_uint64(elem, &intval) == 0)
1510 if (intval == ZFS_ACL_PASSTHROUGH_X &&
1511 zfs_earlier_version(name,
1512 SPA_VERSION_PASSTHROUGH_X))
1518 while ((elem = nvlist_next_nvpair(nvl, elem)) != NULL) {
1519 const char *propname = nvpair_name(elem);
1520 zfs_prop_t prop = zfs_name_to_prop(propname);
1522 if (prop == ZPROP_INVAL) {
1523 VERIFY(nvpair_value_string(elem, &strval) == 0);
1524 error = dsl_prop_set(name, propname, 1,
1525 strlen(strval) + 1, strval);
1533 case ZFS_PROP_QUOTA:
1534 if ((error = nvpair_value_uint64(elem, &intval)) != 0 ||
1535 (error = dsl_dir_set_quota(name, intval)) != 0)
1539 case ZFS_PROP_REFQUOTA:
1540 if ((error = nvpair_value_uint64(elem, &intval)) != 0 ||
1541 (error = dsl_dataset_set_quota(name, intval)) != 0)
1545 case ZFS_PROP_RESERVATION:
1546 if ((error = nvpair_value_uint64(elem, &intval)) != 0 ||
1547 (error = dsl_dir_set_reservation(name,
1552 case ZFS_PROP_REFRESERVATION:
1553 if ((error = nvpair_value_uint64(elem, &intval)) != 0 ||
1554 (error = dsl_dataset_set_reservation(name,
1559 case ZFS_PROP_VOLSIZE:
1560 if ((error = nvpair_value_uint64(elem, &intval)) != 0 ||
1561 (error = zvol_set_volsize(name,
1562 ddi_driver_major(zfs_dip), intval)) != 0)
1566 case ZFS_PROP_VOLBLOCKSIZE:
1567 if ((error = nvpair_value_uint64(elem, &intval)) != 0 ||
1568 (error = zvol_set_volblocksize(name, intval)) != 0)
1572 case ZFS_PROP_VERSION:
1573 if ((error = nvpair_value_uint64(elem, &intval)) != 0 ||
1574 (error = zfs_set_version(name, intval)) != 0)
1579 if (nvpair_type(elem) == DATA_TYPE_STRING) {
1580 if (zfs_prop_get_type(prop) !=
1583 VERIFY(nvpair_value_string(elem, &strval) == 0);
1584 if ((error = dsl_prop_set(name,
1585 nvpair_name(elem), 1, strlen(strval) + 1,
1588 } else if (nvpair_type(elem) == DATA_TYPE_UINT64) {
1591 VERIFY(nvpair_value_uint64(elem, &intval) == 0);
1593 switch (zfs_prop_get_type(prop)) {
1594 case PROP_TYPE_NUMBER:
1596 case PROP_TYPE_STRING:
1598 case PROP_TYPE_INDEX:
1599 if (zfs_prop_index_to_string(prop,
1600 intval, &unused) != 0)
1605 "unknown property type");
1609 if ((error = dsl_prop_set(name, propname,
1610 8, 1, &intval)) != 0)
1624 * zc_name name of filesystem
1625 * zc_value name of property to inherit
1626 * zc_nvlist_src{_size} nvlist of properties to apply
1627 * zc_cookie clear existing local props?
1632 zfs_ioc_set_prop(zfs_cmd_t *zc)
1637 if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
1641 if (zc->zc_cookie) {
1642 nvlist_t *origprops;
1645 if (dmu_objset_open(zc->zc_name, DMU_OST_ANY,
1646 DS_MODE_USER | DS_MODE_READONLY, &os) == 0) {
1647 if (dsl_prop_get_all(os, &origprops, TRUE) == 0) {
1648 clear_props(zc->zc_name, origprops, nvl);
1649 nvlist_free(origprops);
1651 dmu_objset_close(os);
1656 error = zfs_set_prop_nvlist(zc->zc_name, nvl);
1664 * zc_name name of filesystem
1665 * zc_value name of property to inherit
1670 zfs_ioc_inherit_prop(zfs_cmd_t *zc)
1672 /* the property name has been validated by zfs_secpolicy_inherit() */
1673 return (dsl_prop_set(zc->zc_name, zc->zc_value, 0, 0, NULL));
1677 zfs_ioc_pool_set_props(zfs_cmd_t *zc)
1683 if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
1687 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) {
1692 error = spa_prop_set(spa, props);
1695 spa_close(spa, FTAG);
1701 zfs_ioc_pool_get_props(zfs_cmd_t *zc)
1705 nvlist_t *nvp = NULL;
1707 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
1710 error = spa_prop_get(spa, &nvp);
1712 if (error == 0 && zc->zc_nvlist_dst != 0)
1713 error = put_nvlist(zc, nvp);
1717 spa_close(spa, FTAG);
1725 zfs_ioc_iscsi_perm_check(zfs_cmd_t *zc)
1736 if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
1741 if ((error = nvlist_lookup_uint32(nvp,
1742 ZFS_DELEG_PERM_UID, &uid)) != 0) {
1747 if ((error = nvlist_lookup_uint32(nvp,
1748 ZFS_DELEG_PERM_GID, &gid)) != 0) {
1753 if ((error = nvlist_lookup_uint32_array(nvp, ZFS_DELEG_PERM_GROUPS,
1754 &groups, &group_cnt)) != 0) {
1758 usercred = cralloc();
1759 if ((crsetugid(usercred, uid, gid) != 0) ||
1760 (crsetgroups(usercred, group_cnt, (gid_t *)groups) != 0)) {
1766 error = dsl_deleg_access(zc->zc_name,
1767 zfs_prop_to_name(ZFS_PROP_SHAREISCSI), usercred);
1777 * zc_name name of filesystem
1778 * zc_nvlist_src{_size} nvlist of delegated permissions
1779 * zc_perm_action allow/unallow flag
1784 zfs_ioc_set_fsacl(zfs_cmd_t *zc)
1787 nvlist_t *fsaclnv = NULL;
1789 if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
1794 * Verify nvlist is constructed correctly
1796 if ((error = zfs_deleg_verify_nvlist(fsaclnv)) != 0) {
1797 nvlist_free(fsaclnv);
1802 * If we don't have PRIV_SYS_MOUNT, then validate
1803 * that user is allowed to hand out each permission in
1807 error = secpolicy_zfs(CRED());
1809 if (zc->zc_perm_action == B_FALSE) {
1810 error = dsl_deleg_can_allow(zc->zc_name,
1813 error = dsl_deleg_can_unallow(zc->zc_name,
1819 error = dsl_deleg_set(zc->zc_name, fsaclnv, zc->zc_perm_action);
1821 nvlist_free(fsaclnv);
1827 * zc_name name of filesystem
1830 * zc_nvlist_src{_size} nvlist of delegated permissions
1833 zfs_ioc_get_fsacl(zfs_cmd_t *zc)
1838 if ((error = dsl_deleg_get(zc->zc_name, &nvp)) == 0) {
1839 error = put_nvlist(zc, nvp);
1848 * zc_name name of volume
1853 zfs_ioc_create_minor(zfs_cmd_t *zc)
1855 return (zvol_create_minor(zc->zc_name, ddi_driver_major(zfs_dip)));
1860 * zc_name name of volume
1865 zfs_ioc_remove_minor(zfs_cmd_t *zc)
1867 return (zvol_remove_minor(zc->zc_name));
1871 * Search the vfs list for a specified resource. Returns a pointer to it
1872 * or NULL if no suitable entry is found. The caller of this routine
1873 * is responsible for releasing the returned vfs pointer.
1876 zfs_get_vfs(const char *resource)
1880 mtx_lock(&mountlist_mtx);
1881 TAILQ_FOREACH(vfsp, &mountlist, mnt_list) {
1882 if (strcmp(refstr_value(vfsp->vfs_resource), resource) == 0) {
1887 mtx_unlock(&mountlist_mtx);
1893 zfs_create_cb(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx)
1895 zfs_creat_t *zct = arg;
1897 zfs_create_fs(os, cr, zct->zct_zplprops, tx);
1900 #define ZFS_PROP_UNDEFINED ((uint64_t)-1)
1904 * createprops list of properties requested by creator
1905 * default_zplver zpl version to use if unspecified in createprops
1906 * fuids_ok fuids allowed in this version of the spa?
1907 * os parent objset pointer (NULL if root fs)
1910 * zplprops values for the zplprops we attach to the master node object
1911 * is_ci true if requested file system will be purely case-insensitive
1913 * Determine the settings for utf8only, normalization and
1914 * casesensitivity. Specific values may have been requested by the
1915 * creator and/or we can inherit values from the parent dataset. If
1916 * the file system is of too early a vintage, a creator can not
1917 * request settings for these properties, even if the requested
1918 * setting is the default value. We don't actually want to create dsl
1919 * properties for these, so remove them from the source nvlist after
1923 zfs_fill_zplprops_impl(objset_t *os, uint64_t default_zplver,
1924 boolean_t fuids_ok, nvlist_t *createprops, nvlist_t *zplprops,
1927 uint64_t zplver = default_zplver;
1928 uint64_t sense = ZFS_PROP_UNDEFINED;
1929 uint64_t norm = ZFS_PROP_UNDEFINED;
1930 uint64_t u8 = ZFS_PROP_UNDEFINED;
1932 ASSERT(zplprops != NULL);
1935 * Pull out creator prop choices, if any.
1938 (void) nvlist_lookup_uint64(createprops,
1939 zfs_prop_to_name(ZFS_PROP_VERSION), &zplver);
1940 (void) nvlist_lookup_uint64(createprops,
1941 zfs_prop_to_name(ZFS_PROP_NORMALIZE), &norm);
1942 (void) nvlist_remove_all(createprops,
1943 zfs_prop_to_name(ZFS_PROP_NORMALIZE));
1944 (void) nvlist_lookup_uint64(createprops,
1945 zfs_prop_to_name(ZFS_PROP_UTF8ONLY), &u8);
1946 (void) nvlist_remove_all(createprops,
1947 zfs_prop_to_name(ZFS_PROP_UTF8ONLY));
1948 (void) nvlist_lookup_uint64(createprops,
1949 zfs_prop_to_name(ZFS_PROP_CASE), &sense);
1950 (void) nvlist_remove_all(createprops,
1951 zfs_prop_to_name(ZFS_PROP_CASE));
1955 * If the zpl version requested is whacky or the file system
1956 * or pool is version is too "young" to support normalization
1957 * and the creator tried to set a value for one of the props,
1960 if ((zplver < ZPL_VERSION_INITIAL || zplver > ZPL_VERSION) ||
1961 (zplver >= ZPL_VERSION_FUID && !fuids_ok) ||
1962 (zplver < ZPL_VERSION_NORMALIZATION &&
1963 (norm != ZFS_PROP_UNDEFINED || u8 != ZFS_PROP_UNDEFINED ||
1964 sense != ZFS_PROP_UNDEFINED)))
1968 * Put the version in the zplprops
1970 VERIFY(nvlist_add_uint64(zplprops,
1971 zfs_prop_to_name(ZFS_PROP_VERSION), zplver) == 0);
1973 if (norm == ZFS_PROP_UNDEFINED)
1974 VERIFY(zfs_get_zplprop(os, ZFS_PROP_NORMALIZE, &norm) == 0);
1975 VERIFY(nvlist_add_uint64(zplprops,
1976 zfs_prop_to_name(ZFS_PROP_NORMALIZE), norm) == 0);
1979 * If we're normalizing, names must always be valid UTF-8 strings.
1983 if (u8 == ZFS_PROP_UNDEFINED)
1984 VERIFY(zfs_get_zplprop(os, ZFS_PROP_UTF8ONLY, &u8) == 0);
1985 VERIFY(nvlist_add_uint64(zplprops,
1986 zfs_prop_to_name(ZFS_PROP_UTF8ONLY), u8) == 0);
1988 if (sense == ZFS_PROP_UNDEFINED)
1989 VERIFY(zfs_get_zplprop(os, ZFS_PROP_CASE, &sense) == 0);
1990 VERIFY(nvlist_add_uint64(zplprops,
1991 zfs_prop_to_name(ZFS_PROP_CASE), sense) == 0);
1994 *is_ci = (sense == ZFS_CASE_INSENSITIVE);
2000 zfs_fill_zplprops(const char *dataset, nvlist_t *createprops,
2001 nvlist_t *zplprops, boolean_t *is_ci)
2003 boolean_t fuids_ok = B_TRUE;
2004 uint64_t zplver = ZPL_VERSION;
2005 objset_t *os = NULL;
2006 char parentname[MAXNAMELEN];
2010 (void) strlcpy(parentname, dataset, sizeof (parentname));
2011 cp = strrchr(parentname, '/');
2015 if (zfs_earlier_version(dataset, SPA_VERSION_FUID)) {
2016 zplver = ZPL_VERSION_FUID - 1;
2021 * Open parent object set so we can inherit zplprop values.
2023 if ((error = dmu_objset_open(parentname, DMU_OST_ANY,
2024 DS_MODE_USER | DS_MODE_READONLY, &os)) != 0)
2027 error = zfs_fill_zplprops_impl(os, zplver, fuids_ok, createprops,
2029 dmu_objset_close(os);
2034 zfs_fill_zplprops_root(uint64_t spa_vers, nvlist_t *createprops,
2035 nvlist_t *zplprops, boolean_t *is_ci)
2037 boolean_t fuids_ok = B_TRUE;
2038 uint64_t zplver = ZPL_VERSION;
2041 if (spa_vers < SPA_VERSION_FUID) {
2042 zplver = ZPL_VERSION_FUID - 1;
2046 error = zfs_fill_zplprops_impl(NULL, zplver, fuids_ok, createprops,
2053 * zc_objset_type type of objset to create (fs vs zvol)
2054 * zc_name name of new objset
2055 * zc_value name of snapshot to clone from (may be empty)
2056 * zc_nvlist_src{_size} nvlist of properties to apply
2061 zfs_ioc_create(zfs_cmd_t *zc)
2066 nvlist_t *nvprops = NULL;
2067 void (*cbfunc)(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx);
2068 dmu_objset_type_t type = zc->zc_objset_type;
2073 cbfunc = zfs_create_cb;
2077 cbfunc = zvol_create_cb;
2084 if (strchr(zc->zc_name, '@') ||
2085 strchr(zc->zc_name, '%'))
2088 if (zc->zc_nvlist_src != 0 &&
2089 (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
2093 zct.zct_zplprops = NULL;
2094 zct.zct_props = nvprops;
2096 if (zc->zc_value[0] != '\0') {
2098 * We're creating a clone of an existing snapshot.
2100 zc->zc_value[sizeof (zc->zc_value) - 1] = '\0';
2101 if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0) {
2102 nvlist_free(nvprops);
2106 error = dmu_objset_open(zc->zc_value, type,
2107 DS_MODE_USER | DS_MODE_READONLY, &clone);
2109 nvlist_free(nvprops);
2113 error = dmu_objset_create(zc->zc_name, type, clone, 0,
2116 dmu_objset_close(clone);
2117 nvlist_free(nvprops);
2120 dmu_objset_close(clone);
2122 boolean_t is_insensitive = B_FALSE;
2124 if (cbfunc == NULL) {
2125 nvlist_free(nvprops);
2129 if (type == DMU_OST_ZVOL) {
2130 uint64_t volsize, volblocksize;
2132 if (nvprops == NULL ||
2133 nvlist_lookup_uint64(nvprops,
2134 zfs_prop_to_name(ZFS_PROP_VOLSIZE),
2136 nvlist_free(nvprops);
2140 if ((error = nvlist_lookup_uint64(nvprops,
2141 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE),
2142 &volblocksize)) != 0 && error != ENOENT) {
2143 nvlist_free(nvprops);
2148 volblocksize = zfs_prop_default_numeric(
2149 ZFS_PROP_VOLBLOCKSIZE);
2151 if ((error = zvol_check_volblocksize(
2152 volblocksize)) != 0 ||
2153 (error = zvol_check_volsize(volsize,
2154 volblocksize)) != 0) {
2155 nvlist_free(nvprops);
2158 } else if (type == DMU_OST_ZFS) {
2162 * We have to have normalization and
2163 * case-folding flags correct when we do the
2164 * file system creation, so go figure them out
2167 VERIFY(nvlist_alloc(&zct.zct_zplprops,
2168 NV_UNIQUE_NAME, KM_SLEEP) == 0);
2169 error = zfs_fill_zplprops(zc->zc_name, nvprops,
2170 zct.zct_zplprops, &is_insensitive);
2172 nvlist_free(nvprops);
2173 nvlist_free(zct.zct_zplprops);
2177 error = dmu_objset_create(zc->zc_name, type, NULL,
2178 is_insensitive ? DS_FLAG_CI_DATASET : 0, cbfunc, &zct);
2179 nvlist_free(zct.zct_zplprops);
2183 * It would be nice to do this atomically.
2186 if ((error = zfs_set_prop_nvlist(zc->zc_name, nvprops)) != 0)
2187 (void) dmu_objset_destroy(zc->zc_name);
2189 nvlist_free(nvprops);
2193 struct snap_prop_arg {
2195 const char *snapname;
2199 set_snap_props(char *name, void *arg)
2201 struct snap_prop_arg *snpa = arg;
2202 int len = strlen(name) + strlen(snpa->snapname) + 2;
2203 char *buf = kmem_alloc(len, KM_SLEEP);
2206 (void) snprintf(buf, len, "%s@%s", name, snpa->snapname);
2207 err = zfs_set_prop_nvlist(buf, snpa->nvprops);
2209 (void) dmu_objset_destroy(buf);
2210 kmem_free(buf, len);
2216 * zc_name name of filesystem
2217 * zc_value short name of snapshot
2218 * zc_cookie recursive flag
2223 zfs_ioc_snapshot(zfs_cmd_t *zc)
2225 nvlist_t *nvprops = NULL;
2227 boolean_t recursive = zc->zc_cookie;
2229 if (snapshot_namecheck(zc->zc_value, NULL, NULL) != 0)
2232 if (zc->zc_nvlist_src != 0 &&
2233 (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
2237 error = dmu_objset_snapshot(zc->zc_name, zc->zc_value, recursive);
2240 * It would be nice to do this atomically.
2243 struct snap_prop_arg snpa;
2244 snpa.nvprops = nvprops;
2245 snpa.snapname = zc->zc_value;
2247 error = dmu_objset_find(zc->zc_name,
2248 set_snap_props, &snpa, DS_FIND_CHILDREN);
2250 (void) dmu_snapshots_destroy(zc->zc_name,
2254 error = set_snap_props(zc->zc_name, &snpa);
2257 nvlist_free(nvprops);
2262 zfs_unmount_snap(char *name, void *arg)
2267 char *snapname = arg;
2268 int len = strlen(name) + strlen(snapname) + 2;
2269 char *buf = kmem_alloc(len, KM_SLEEP);
2271 (void) strcpy(buf, name);
2272 (void) strcat(buf, "@");
2273 (void) strcat(buf, snapname);
2274 vfsp = zfs_get_vfs(buf);
2275 kmem_free(buf, len);
2276 } else if (strchr(name, '@')) {
2277 vfsp = zfs_get_vfs(name);
2282 * Always force the unmount for snapshots.
2284 int flag = MS_FORCE;
2287 if ((err = vn_vfswlock(vfsp->vfs_vnodecovered)) != 0) {
2292 mtx_lock(&Giant); /* dounmount() */
2293 dounmount(vfsp, flag, curthread);
2294 mtx_unlock(&Giant); /* dounmount() */
2301 * zc_name name of filesystem
2302 * zc_value short name of snapshot
2307 zfs_ioc_destroy_snaps(zfs_cmd_t *zc)
2311 if (snapshot_namecheck(zc->zc_value, NULL, NULL) != 0)
2313 err = dmu_objset_find(zc->zc_name,
2314 zfs_unmount_snap, zc->zc_value, DS_FIND_CHILDREN);
2317 return (dmu_snapshots_destroy(zc->zc_name, zc->zc_value));
2322 * zc_name name of dataset to destroy
2323 * zc_objset_type type of objset
2328 zfs_ioc_destroy(zfs_cmd_t *zc)
2330 if (strchr(zc->zc_name, '@') && zc->zc_objset_type == DMU_OST_ZFS) {
2331 int err = zfs_unmount_snap(zc->zc_name, NULL);
2336 return (dmu_objset_destroy(zc->zc_name));
2341 * zc_name name of dataset to rollback (to most recent snapshot)
2346 zfs_ioc_rollback(zfs_cmd_t *zc)
2350 zfsvfs_t *zfsvfs = NULL;
2353 * Get the zfsvfs for the receiving objset. There
2354 * won't be one if we're operating on a zvol, if the
2355 * objset doesn't exist yet, or is not mounted.
2357 error = dmu_objset_open(zc->zc_name, DMU_OST_ANY, DS_MODE_USER, &os);
2361 if (dmu_objset_type(os) == DMU_OST_ZFS) {
2362 mutex_enter(&os->os->os_user_ptr_lock);
2363 zfsvfs = dmu_objset_get_user(os);
2365 VFS_HOLD(zfsvfs->z_vfs);
2366 mutex_exit(&os->os->os_user_ptr_lock);
2369 if (zfsvfs != NULL) {
2373 osname = kmem_alloc(MAXNAMELEN, KM_SLEEP);
2374 error = zfs_suspend_fs(zfsvfs, osname, &mode);
2378 ASSERT(strcmp(osname, zc->zc_name) == 0);
2379 error = dmu_objset_rollback(os);
2380 resume_err = zfs_resume_fs(zfsvfs, osname, mode);
2381 error = error ? error : resume_err;
2383 dmu_objset_close(os);
2385 kmem_free(osname, MAXNAMELEN);
2386 VFS_RELE(zfsvfs->z_vfs);
2388 error = dmu_objset_rollback(os);
2390 /* Note, the dmu_objset_rollback() releases the objset for us. */
2397 * zc_name old name of dataset
2398 * zc_value new name of dataset
2399 * zc_cookie recursive flag (only valid for snapshots)
2404 zfs_ioc_rename(zfs_cmd_t *zc)
2406 boolean_t recursive = zc->zc_cookie & 1;
2408 zc->zc_value[sizeof (zc->zc_value) - 1] = '\0';
2409 if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 ||
2410 strchr(zc->zc_value, '%'))
2414 * Unmount snapshot unless we're doing a recursive rename,
2415 * in which case the dataset code figures out which snapshots
2418 if (!recursive && strchr(zc->zc_name, '@') != NULL &&
2419 zc->zc_objset_type == DMU_OST_ZFS) {
2420 int err = zfs_unmount_snap(zc->zc_name, NULL);
2424 return (dmu_objset_rename(zc->zc_name, zc->zc_value, recursive));
2428 clear_props(char *dataset, nvlist_t *props, nvlist_t *newprops)
2435 zc = kmem_alloc(sizeof (zfs_cmd_t), KM_SLEEP);
2436 (void) strcpy(zc->zc_name, dataset);
2437 for (prop = nvlist_next_nvpair(props, NULL); prop;
2438 prop = nvlist_next_nvpair(props, prop)) {
2439 if (newprops != NULL &&
2440 nvlist_exists(newprops, nvpair_name(prop)))
2442 (void) strcpy(zc->zc_value, nvpair_name(prop));
2443 if (zfs_secpolicy_inherit(zc, CRED()) == 0)
2444 (void) zfs_ioc_inherit_prop(zc);
2446 kmem_free(zc, sizeof (zfs_cmd_t));
2451 * zc_name name of containing filesystem
2452 * zc_nvlist_src{_size} nvlist of properties to apply
2453 * zc_value name of snapshot to create
2454 * zc_string name of clone origin (if DRR_FLAG_CLONE)
2455 * zc_cookie file descriptor to recv from
2456 * zc_begin_record the BEGIN record of the stream (not byteswapped)
2457 * zc_guid force flag
2460 * zc_cookie number of bytes read
2463 zfs_ioc_recv(zfs_cmd_t *zc)
2467 dmu_recv_cookie_t drc;
2468 zfsvfs_t *zfsvfs = NULL;
2469 boolean_t force = (boolean_t)zc->zc_guid;
2472 nvlist_t *props = NULL;
2473 nvlist_t *origprops = NULL;
2474 objset_t *origin = NULL;
2476 char tofs[ZFS_MAXNAMELEN];
2478 if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 ||
2479 strchr(zc->zc_value, '@') == NULL ||
2480 strchr(zc->zc_value, '%'))
2483 (void) strcpy(tofs, zc->zc_value);
2484 tosnap = strchr(tofs, '@');
2488 if (zc->zc_nvlist_src != 0 &&
2489 (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
2500 if (dmu_objset_open(tofs, DMU_OST_ANY,
2501 DS_MODE_USER | DS_MODE_READONLY, &os) == 0) {
2503 * Try to get the zfsvfs for the receiving objset.
2504 * There won't be one if we're operating on a zvol,
2505 * if the objset doesn't exist yet, or is not mounted.
2507 mutex_enter(&os->os->os_user_ptr_lock);
2508 if (zfsvfs = dmu_objset_get_user(os)) {
2509 if (!mutex_tryenter(&zfsvfs->z_online_recv_lock)) {
2510 mutex_exit(&os->os->os_user_ptr_lock);
2511 dmu_objset_close(os);
2516 VFS_HOLD(zfsvfs->z_vfs);
2518 mutex_exit(&os->os->os_user_ptr_lock);
2521 * If new properties are supplied, they are to completely
2522 * replace the existing ones, so stash away the existing ones.
2525 (void) dsl_prop_get_all(os, &origprops, TRUE);
2527 dmu_objset_close(os);
2530 if (zc->zc_string[0]) {
2531 error = dmu_objset_open(zc->zc_string, DMU_OST_ANY,
2532 DS_MODE_USER | DS_MODE_READONLY, &origin);
2537 error = dmu_recv_begin(tofs, tosnap, &zc->zc_begin_record,
2538 force, origin, zfsvfs != NULL, &drc);
2540 dmu_objset_close(origin);
2545 * Reset properties. We do this before we receive the stream
2546 * so that the properties are applied to the new data.
2549 clear_props(tofs, origprops, props);
2551 * XXX - Note, this is all-or-nothing; should be best-effort.
2553 (void) zfs_set_prop_nvlist(tofs, props);
2557 error = dmu_recv_stream(&drc, fp, &off);
2559 if (error == 0 && zfsvfs) {
2564 osname = kmem_alloc(MAXNAMELEN, KM_SLEEP);
2565 error = zfs_suspend_fs(zfsvfs, osname, &mode);
2569 error = dmu_recv_end(&drc);
2570 resume_err = zfs_resume_fs(zfsvfs, osname, mode);
2571 error = error ? error : resume_err;
2573 dmu_recv_abort_cleanup(&drc);
2575 kmem_free(osname, MAXNAMELEN);
2576 } else if (error == 0) {
2577 error = dmu_recv_end(&drc);
2580 zc->zc_cookie = off - fp->f_offset;
2581 if (off >= 0 && off <= MAXOFFSET_T)
2585 * On error, restore the original props.
2587 if (error && props) {
2588 clear_props(tofs, props, NULL);
2589 (void) zfs_set_prop_nvlist(tofs, origprops);
2593 mutex_exit(&zfsvfs->z_online_recv_lock);
2594 VFS_RELE(zfsvfs->z_vfs);
2597 nvlist_free(origprops);
2604 * zc_name name of snapshot to send
2605 * zc_value short name of incremental fromsnap (may be empty)
2606 * zc_cookie file descriptor to send stream to
2607 * zc_obj fromorigin flag (mutually exclusive with zc_value)
2612 zfs_ioc_send(zfs_cmd_t *zc)
2614 objset_t *fromsnap = NULL;
2620 error = dmu_objset_open(zc->zc_name, DMU_OST_ANY,
2621 DS_MODE_USER | DS_MODE_READONLY, &tosnap);
2625 if (zc->zc_value[0] != '\0') {
2629 buf = kmem_alloc(MAXPATHLEN, KM_SLEEP);
2630 (void) strncpy(buf, zc->zc_name, MAXPATHLEN);
2631 cp = strchr(buf, '@');
2634 (void) strlcat(buf, zc->zc_value, MAXPATHLEN);
2635 error = dmu_objset_open(buf, DMU_OST_ANY,
2636 DS_MODE_USER | DS_MODE_READONLY, &fromsnap);
2637 kmem_free(buf, MAXPATHLEN);
2639 dmu_objset_close(tosnap);
2644 fp = getf(zc->zc_cookie, 1);
2646 dmu_objset_close(tosnap);
2648 dmu_objset_close(fromsnap);
2653 error = dmu_sendbackup(tosnap, fromsnap, zc->zc_obj, fp, &off);
2655 if (off >= 0 && off <= MAXOFFSET_T)
2659 dmu_objset_close(fromsnap);
2660 dmu_objset_close(tosnap);
2665 zfs_ioc_inject_fault(zfs_cmd_t *zc)
2669 error = zio_inject_fault(zc->zc_name, (int)zc->zc_guid, &id,
2670 &zc->zc_inject_record);
2673 zc->zc_guid = (uint64_t)id;
2679 zfs_ioc_clear_fault(zfs_cmd_t *zc)
2681 return (zio_clear_fault((int)zc->zc_guid));
2685 zfs_ioc_inject_list_next(zfs_cmd_t *zc)
2687 int id = (int)zc->zc_guid;
2690 error = zio_inject_list_next(&id, zc->zc_name, sizeof (zc->zc_name),
2691 &zc->zc_inject_record);
2699 zfs_ioc_error_log(zfs_cmd_t *zc)
2703 size_t count = (size_t)zc->zc_nvlist_dst_size;
2705 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
2708 error = spa_get_errlog(spa, (void *)(uintptr_t)zc->zc_nvlist_dst,
2711 zc->zc_nvlist_dst_size = count;
2713 zc->zc_nvlist_dst_size = spa_get_errlog_size(spa);
2715 spa_close(spa, FTAG);
2721 zfs_ioc_clear(zfs_cmd_t *zc)
2728 * On zpool clear we also fix up missing slogs
2730 mutex_enter(&spa_namespace_lock);
2731 spa = spa_lookup(zc->zc_name);
2733 mutex_exit(&spa_namespace_lock);
2736 if (spa->spa_log_state == SPA_LOG_MISSING) {
2737 /* we need to let spa_open/spa_load clear the chains */
2738 spa->spa_log_state = SPA_LOG_CLEAR;
2740 mutex_exit(&spa_namespace_lock);
2742 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
2745 spa_vdev_state_enter(spa);
2747 if (zc->zc_guid == 0) {
2750 vd = spa_lookup_by_guid(spa, zc->zc_guid, B_TRUE);
2752 (void) spa_vdev_state_exit(spa, NULL, ENODEV);
2753 spa_close(spa, FTAG);
2758 vdev_clear(spa, vd);
2760 (void) spa_vdev_state_exit(spa, NULL, 0);
2763 * Resume any suspended I/Os.
2767 spa_close(spa, FTAG);
2774 * zc_name name of filesystem
2775 * zc_value name of origin snapshot
2780 zfs_ioc_promote(zfs_cmd_t *zc)
2785 * We don't need to unmount *all* the origin fs's snapshots, but
2788 cp = strchr(zc->zc_value, '@');
2791 (void) dmu_objset_find(zc->zc_value,
2792 zfs_unmount_snap, NULL, DS_FIND_SNAPSHOTS);
2793 return (dsl_dataset_promote(zc->zc_name));
2798 * We don't want to have a hard dependency
2799 * against some special symbols in sharefs
2800 * nfs, and smbsrv. Determine them if needed when
2801 * the first file system is shared.
2802 * Neither sharefs, nfs or smbsrv are unloadable modules.
2804 int (*znfsexport_fs)(void *arg);
2805 int (*zshare_fs)(enum sharefs_sys_op, share_t *, uint32_t);
2806 int (*zsmbexport_fs)(void *arg, boolean_t add_share);
2808 int zfs_nfsshare_inited;
2809 int zfs_smbshare_inited;
2811 ddi_modhandle_t nfs_mod;
2812 ddi_modhandle_t sharefs_mod;
2813 ddi_modhandle_t smbsrv_mod;
2815 kmutex_t zfs_share_lock;
2823 ASSERT(MUTEX_HELD(&zfs_share_lock));
2824 /* Both NFS and SMB shares also require sharetab support. */
2825 if (sharefs_mod == NULL && ((sharefs_mod =
2826 ddi_modopen("fs/sharefs",
2827 KRTLD_MODE_FIRST, &error)) == NULL)) {
2830 if (zshare_fs == NULL && ((zshare_fs =
2831 (int (*)(enum sharefs_sys_op, share_t *, uint32_t))
2832 ddi_modsym(sharefs_mod, "sharefs_impl", &error)) == NULL)) {
2840 zfs_ioc_share(zfs_cmd_t *zc)
2846 switch (zc->zc_share.z_sharetype) {
2848 case ZFS_UNSHARE_NFS:
2849 if (zfs_nfsshare_inited == 0) {
2850 mutex_enter(&zfs_share_lock);
2851 if (nfs_mod == NULL && ((nfs_mod = ddi_modopen("fs/nfs",
2852 KRTLD_MODE_FIRST, &error)) == NULL)) {
2853 mutex_exit(&zfs_share_lock);
2856 if (znfsexport_fs == NULL &&
2857 ((znfsexport_fs = (int (*)(void *))
2859 "nfs_export", &error)) == NULL)) {
2860 mutex_exit(&zfs_share_lock);
2863 error = zfs_init_sharefs();
2865 mutex_exit(&zfs_share_lock);
2868 zfs_nfsshare_inited = 1;
2869 mutex_exit(&zfs_share_lock);
2873 case ZFS_UNSHARE_SMB:
2874 if (zfs_smbshare_inited == 0) {
2875 mutex_enter(&zfs_share_lock);
2876 if (smbsrv_mod == NULL && ((smbsrv_mod =
2877 ddi_modopen("drv/smbsrv",
2878 KRTLD_MODE_FIRST, &error)) == NULL)) {
2879 mutex_exit(&zfs_share_lock);
2882 if (zsmbexport_fs == NULL && ((zsmbexport_fs =
2883 (int (*)(void *, boolean_t))ddi_modsym(smbsrv_mod,
2884 "smb_server_share", &error)) == NULL)) {
2885 mutex_exit(&zfs_share_lock);
2888 error = zfs_init_sharefs();
2890 mutex_exit(&zfs_share_lock);
2893 zfs_smbshare_inited = 1;
2894 mutex_exit(&zfs_share_lock);
2901 switch (zc->zc_share.z_sharetype) {
2903 case ZFS_UNSHARE_NFS:
2905 znfsexport_fs((void *)
2906 (uintptr_t)zc->zc_share.z_exportdata))
2910 case ZFS_UNSHARE_SMB:
2911 if (error = zsmbexport_fs((void *)
2912 (uintptr_t)zc->zc_share.z_exportdata,
2913 zc->zc_share.z_sharetype == ZFS_SHARE_SMB ?
2914 B_TRUE : B_FALSE)) {
2920 opcode = (zc->zc_share.z_sharetype == ZFS_SHARE_NFS ||
2921 zc->zc_share.z_sharetype == ZFS_SHARE_SMB) ?
2922 SHAREFS_ADD : SHAREFS_REMOVE;
2925 * Add or remove share from sharetab
2927 error = zshare_fs(opcode,
2928 (void *)(uintptr_t)zc->zc_share.z_sharedata,
2929 zc->zc_share.z_sharemax);
2938 * pool create, destroy, and export don't log the history as part of
2939 * zfsdev_ioctl, but rather zfs_ioc_pool_create, and zfs_ioc_pool_export
2940 * do the logging of those commands.
2943 zfs_ioc_jail(zfs_cmd_t *zc)
2946 return (zone_dataset_attach(curthread->td_ucred, zc->zc_name,
2947 (int)zc->zc_jailid));
2951 zfs_ioc_unjail(zfs_cmd_t *zc)
2954 return (zone_dataset_detach(curthread->td_ucred, zc->zc_name,
2955 (int)zc->zc_jailid));
2958 static zfs_ioc_vec_t zfs_ioc_vec[] = {
2959 { zfs_ioc_pool_create, zfs_secpolicy_config, POOL_NAME, B_FALSE },
2960 { zfs_ioc_pool_destroy, zfs_secpolicy_config, POOL_NAME, B_FALSE },
2961 { zfs_ioc_pool_import, zfs_secpolicy_config, POOL_NAME, B_TRUE },
2962 { zfs_ioc_pool_export, zfs_secpolicy_config, POOL_NAME, B_FALSE },
2963 { zfs_ioc_pool_configs, zfs_secpolicy_none, NO_NAME, B_FALSE },
2964 { zfs_ioc_pool_stats, zfs_secpolicy_read, POOL_NAME, B_FALSE },
2965 { zfs_ioc_pool_tryimport, zfs_secpolicy_config, NO_NAME, B_FALSE },
2966 { zfs_ioc_pool_scrub, zfs_secpolicy_config, POOL_NAME, B_TRUE },
2967 { zfs_ioc_pool_freeze, zfs_secpolicy_config, NO_NAME, B_FALSE },
2968 { zfs_ioc_pool_upgrade, zfs_secpolicy_config, POOL_NAME, B_TRUE },
2969 { zfs_ioc_pool_get_history, zfs_secpolicy_config, POOL_NAME, B_FALSE },
2970 { zfs_ioc_vdev_add, zfs_secpolicy_config, POOL_NAME, B_TRUE },
2971 { zfs_ioc_vdev_remove, zfs_secpolicy_config, POOL_NAME, B_TRUE },
2972 { zfs_ioc_vdev_set_state, zfs_secpolicy_config, POOL_NAME, B_TRUE },
2973 { zfs_ioc_vdev_attach, zfs_secpolicy_config, POOL_NAME, B_TRUE },
2974 { zfs_ioc_vdev_detach, zfs_secpolicy_config, POOL_NAME, B_TRUE },
2975 { zfs_ioc_vdev_setpath, zfs_secpolicy_config, POOL_NAME, B_FALSE },
2976 { zfs_ioc_objset_stats, zfs_secpolicy_read, DATASET_NAME, B_FALSE },
2977 { zfs_ioc_objset_zplprops, zfs_secpolicy_read, DATASET_NAME, B_FALSE },
2978 { zfs_ioc_dataset_list_next, zfs_secpolicy_read,
2979 DATASET_NAME, B_FALSE },
2980 { zfs_ioc_snapshot_list_next, zfs_secpolicy_read,
2981 DATASET_NAME, B_FALSE },
2982 { zfs_ioc_set_prop, zfs_secpolicy_none, DATASET_NAME, B_TRUE },
2983 { zfs_ioc_create_minor, zfs_secpolicy_minor, DATASET_NAME, B_FALSE },
2984 { zfs_ioc_remove_minor, zfs_secpolicy_minor, DATASET_NAME, B_FALSE },
2985 { zfs_ioc_create, zfs_secpolicy_create, DATASET_NAME, B_TRUE },
2986 { zfs_ioc_destroy, zfs_secpolicy_destroy, DATASET_NAME, B_TRUE },
2987 { zfs_ioc_rollback, zfs_secpolicy_rollback, DATASET_NAME, B_TRUE },
2988 { zfs_ioc_rename, zfs_secpolicy_rename, DATASET_NAME, B_TRUE },
2989 { zfs_ioc_recv, zfs_secpolicy_receive, DATASET_NAME, B_TRUE },
2990 { zfs_ioc_send, zfs_secpolicy_send, DATASET_NAME, B_TRUE },
2991 { zfs_ioc_inject_fault, zfs_secpolicy_inject, NO_NAME, B_FALSE },
2992 { zfs_ioc_clear_fault, zfs_secpolicy_inject, NO_NAME, B_FALSE },
2993 { zfs_ioc_inject_list_next, zfs_secpolicy_inject, NO_NAME, B_FALSE },
2994 { zfs_ioc_error_log, zfs_secpolicy_inject, POOL_NAME, B_FALSE },
2995 { zfs_ioc_clear, zfs_secpolicy_config, POOL_NAME, B_TRUE },
2996 { zfs_ioc_promote, zfs_secpolicy_promote, DATASET_NAME, B_TRUE },
2997 { zfs_ioc_destroy_snaps, zfs_secpolicy_destroy, DATASET_NAME, B_TRUE },
2998 { zfs_ioc_snapshot, zfs_secpolicy_snapshot, DATASET_NAME, B_TRUE },
2999 { zfs_ioc_dsobj_to_dsname, zfs_secpolicy_config, POOL_NAME, B_FALSE },
3000 { zfs_ioc_obj_to_path, zfs_secpolicy_config, NO_NAME, B_FALSE },
3001 { zfs_ioc_pool_set_props, zfs_secpolicy_config, POOL_NAME, B_TRUE },
3002 { zfs_ioc_pool_get_props, zfs_secpolicy_read, POOL_NAME, B_FALSE },
3003 { zfs_ioc_set_fsacl, zfs_secpolicy_fsacl, DATASET_NAME, B_TRUE },
3004 { zfs_ioc_get_fsacl, zfs_secpolicy_read, DATASET_NAME, B_FALSE },
3005 { zfs_ioc_iscsi_perm_check, zfs_secpolicy_iscsi,
3006 DATASET_NAME, B_FALSE },
3007 { zfs_ioc_share, zfs_secpolicy_share, DATASET_NAME, B_FALSE },
3008 { zfs_ioc_inherit_prop, zfs_secpolicy_inherit, DATASET_NAME, B_TRUE },
3009 { zfs_ioc_jail, zfs_secpolicy_config, DATASET_NAME, B_TRUE },
3010 { zfs_ioc_unjail, zfs_secpolicy_config, DATASET_NAME, B_TRUE }
3014 zfsdev_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag,
3017 zfs_cmd_t *zc = (void *)addr;
3023 if (vec >= sizeof (zfs_ioc_vec) / sizeof (zfs_ioc_vec[0]))
3026 error = zfs_ioc_vec[vec].zvec_secpolicy(zc, td->td_ucred);
3029 * Ensure that all pool/dataset names are valid before we pass down to
3033 zc->zc_name[sizeof (zc->zc_name) - 1] = '\0';
3034 switch (zfs_ioc_vec[vec].zvec_namecheck) {
3036 if (pool_namecheck(zc->zc_name, NULL, NULL) != 0)
3041 if (dataset_namecheck(zc->zc_name, NULL, NULL) != 0)
3051 error = zfs_ioc_vec[vec].zvec_func(zc);
3054 if (zfs_ioc_vec[vec].zvec_his_log == B_TRUE)
3055 zfs_log_history(zc);
3062 * OK, so this is a little weird.
3064 * /dev/zfs is the control node, i.e. minor 0.
3065 * /dev/zvol/[r]dsk/pool/dataset are the zvols, minor > 0.
3067 * /dev/zfs has basically nothing to do except serve up ioctls,
3068 * so most of the standard driver entry points are in zvol.c.
3070 static struct cdevsw zfs_cdevsw = {
3071 .d_version = D_VERSION,
3072 .d_ioctl = zfsdev_ioctl,
3073 .d_name = ZFS_DEV_NAME
3079 zfsdev = make_dev(&zfs_cdevsw, 0x0, UID_ROOT, GID_OPERATOR, 0666,
3087 destroy_dev(zfsdev);
3090 static struct root_hold_token *zfs_root_token;
3091 struct proc *zfsproc;
3093 uint_t zfs_fsyncer_key;
3094 extern uint_t rrw_tsd_key;
3097 zfs_modevent(module_t mod, int type, void *unused __unused)
3103 zfs_root_token = root_mount_hold("ZFS");
3105 mutex_init(&zfs_share_lock, NULL, MUTEX_DEFAULT, NULL);
3107 spa_init(FREAD | FWRITE);
3111 tsd_create(&zfs_fsyncer_key, NULL);
3112 tsd_create(&rrw_tsd_key, NULL);
3114 printf("ZFS storage pool version " SPA_VERSION_STRING "\n");
3115 root_mount_rel(zfs_root_token);
3120 if (spa_busy() || zfs_busy() || zvol_busy() ||
3121 zio_injection_enabled) {
3131 tsd_destroy(&zfs_fsyncer_key);
3132 tsd_destroy(&rrw_tsd_key);
3134 mutex_destroy(&zfs_share_lock);
3143 static moduledata_t zfs_mod = {
3148 DECLARE_MODULE(zfsctrl, zfs_mod, SI_SUB_VFS, SI_ORDER_ANY);
3149 MODULE_DEPEND(zfsctrl, opensolaris, 1, 1, 1);
3150 MODULE_DEPEND(zfsctrl, krpc, 1, 1, 1);