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 2009 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/errno.h>
31 #include <sys/modctl.h>
36 #include <sys/cmn_err.h>
38 #include <sys/zfs_ioctl.h>
39 #include <sys/zfs_znode.h>
42 #include <sys/spa_impl.h>
44 #include <sys/vdev_impl.h>
46 #include <sys/dsl_dir.h>
47 #include <sys/dsl_dataset.h>
48 #include <sys/dsl_prop.h>
49 #include <sys/dsl_deleg.h>
50 #include <sys/dmu_objset.h>
52 #include <sys/sunddi.h>
53 #include <sys/sunldi.h>
54 #include <sys/policy.h>
56 #include <sys/nvpair.h>
57 #include <sys/pathname.h>
58 #include <sys/mount.h>
60 #include <sys/fs/zfs.h>
61 #include <sys/zfs_ctldir.h>
62 #include <sys/zfs_dir.h>
64 #include <sharefs/share.h>
65 #include <sys/dmu_objset.h>
67 #include "zfs_namecheck.h"
69 #include "zfs_deleg.h"
71 extern struct modlfs zfs_modlfs;
73 extern void zfs_init(void);
74 extern void zfs_fini(void);
76 ldi_ident_t zfs_li = NULL;
79 typedef int zfs_ioc_func_t(zfs_cmd_t *);
80 typedef int zfs_secpolicy_func_t(zfs_cmd_t *, cred_t *);
82 typedef struct zfs_ioc_vec {
83 zfs_ioc_func_t *zvec_func;
84 zfs_secpolicy_func_t *zvec_secpolicy;
90 boolean_t zvec_his_log;
93 static void clear_props(char *dataset, nvlist_t *props, nvlist_t *newprops);
94 static int zfs_fill_zplprops_root(uint64_t, nvlist_t *, nvlist_t *,
96 int zfs_set_prop_nvlist(const char *, nvlist_t *);
98 /* _NOTE(PRINTFLIKE(4)) - this is printf-like, but lint is too whiney */
100 __dprintf(const char *file, const char *func, int line, const char *fmt, ...)
107 * Get rid of annoying "../common/" prefix to filename.
109 newfile = strrchr(file, '/');
110 if (newfile != NULL) {
111 newfile = newfile + 1; /* Get rid of leading / */
117 (void) vsnprintf(buf, sizeof (buf), fmt, adx);
121 * To get this data, use the zfs-dprintf probe as so:
122 * dtrace -q -n 'zfs-dprintf \
123 * /stringof(arg0) == "dbuf.c"/ \
124 * {printf("%s: %s", stringof(arg1), stringof(arg3))}'
126 * arg1 = function name
130 DTRACE_PROBE4(zfs__dprintf,
131 char *, newfile, char *, func, int, line, char *, buf);
135 history_str_free(char *buf)
137 kmem_free(buf, HIS_MAX_RECORD_LEN);
141 history_str_get(zfs_cmd_t *zc)
145 if (zc->zc_history == NULL)
148 buf = kmem_alloc(HIS_MAX_RECORD_LEN, KM_SLEEP);
149 if (copyinstr((void *)(uintptr_t)zc->zc_history,
150 buf, HIS_MAX_RECORD_LEN, NULL) != 0) {
151 history_str_free(buf);
155 buf[HIS_MAX_RECORD_LEN -1] = '\0';
161 * Check to see if the named dataset is currently defined as bootable
164 zfs_is_bootfs(const char *name)
167 boolean_t ret = B_FALSE;
169 if (spa_open(name, &spa, FTAG) == 0) {
170 if (spa->spa_bootfs) {
173 if (dmu_objset_open(name, DMU_OST_ZFS,
174 DS_MODE_USER | DS_MODE_READONLY, &os) == 0) {
175 ret = (dmu_objset_id(os) == spa->spa_bootfs);
176 dmu_objset_close(os);
179 spa_close(spa, FTAG);
185 * zfs_earlier_version
187 * Return non-zero if the spa version is less than requested version.
190 zfs_earlier_version(const char *name, int version)
194 if (spa_open(name, &spa, FTAG) == 0) {
195 if (spa_version(spa) < version) {
196 spa_close(spa, FTAG);
199 spa_close(spa, FTAG);
205 * zpl_earlier_version
207 * Return TRUE if the ZPL version is less than requested version.
210 zpl_earlier_version(const char *name, int version)
213 boolean_t rc = B_TRUE;
215 if (dmu_objset_open(name, DMU_OST_ANY,
216 DS_MODE_USER | DS_MODE_READONLY, &os) == 0) {
219 if (zfs_get_zplprop(os, ZFS_PROP_VERSION, &zplversion) == 0)
220 rc = zplversion < version;
221 dmu_objset_close(os);
227 zfs_log_history(zfs_cmd_t *zc)
232 if ((buf = history_str_get(zc)) == NULL)
235 if (spa_open(zc->zc_name, &spa, FTAG) == 0) {
236 if (spa_version(spa) >= SPA_VERSION_ZPOOL_HISTORY)
237 (void) spa_history_log(spa, buf, LOG_CMD_NORMAL);
238 spa_close(spa, FTAG);
240 history_str_free(buf);
244 * Policy for top-level read operations (list pools). Requires no privileges,
245 * and can be used in the local zone, as there is no associated dataset.
249 zfs_secpolicy_none(zfs_cmd_t *zc, cred_t *cr)
255 * Policy for dataset read operations (list children, get statistics). Requires
256 * no privileges, but must be visible in the local zone.
260 zfs_secpolicy_read(zfs_cmd_t *zc, cred_t *cr)
262 if (INGLOBALZONE(curproc) ||
263 zone_dataset_visible(zc->zc_name, NULL))
270 zfs_dozonecheck(const char *dataset, cred_t *cr)
276 * The dataset must be visible by this zone -- check this first
277 * so they don't see EPERM on something they shouldn't know about.
279 if (!INGLOBALZONE(curproc) &&
280 !zone_dataset_visible(dataset, &writable))
283 if (dsl_prop_get_integer(dataset, "zoned", &zoned, NULL))
286 if (INGLOBALZONE(curproc)) {
288 * If the fs is zoned, only root can access it from the
291 if (secpolicy_zfs(cr) && zoned)
295 * If we are in a local zone, the 'zoned' property must be set.
300 /* must be writable by this zone */
308 zfs_secpolicy_write_perms(const char *name, const char *perm, cred_t *cr)
312 error = zfs_dozonecheck(name, cr);
314 error = secpolicy_zfs(cr);
316 error = dsl_deleg_access(name, perm, cr);
322 zfs_secpolicy_setprop(const char *name, zfs_prop_t prop, cred_t *cr)
325 * Check permissions for special properties.
330 * Disallow setting of 'zoned' from within a local zone.
332 if (!INGLOBALZONE(curproc))
337 if (!INGLOBALZONE(curproc)) {
339 char setpoint[MAXNAMELEN];
341 * Unprivileged users are allowed to modify the
342 * quota on things *under* (ie. contained by)
343 * the thing they own.
345 if (dsl_prop_get_integer(name, "zoned", &zoned,
348 if (!zoned || strlen(name) <= strlen(setpoint))
354 return (zfs_secpolicy_write_perms(name, zfs_prop_to_name(prop), cr));
358 zfs_secpolicy_fsacl(zfs_cmd_t *zc, cred_t *cr)
362 error = zfs_dozonecheck(zc->zc_name, cr);
367 * permission to set permissions will be evaluated later in
368 * dsl_deleg_can_allow()
374 zfs_secpolicy_rollback(zfs_cmd_t *zc, cred_t *cr)
377 error = zfs_secpolicy_write_perms(zc->zc_name,
378 ZFS_DELEG_PERM_ROLLBACK, cr);
380 error = zfs_secpolicy_write_perms(zc->zc_name,
381 ZFS_DELEG_PERM_MOUNT, cr);
386 zfs_secpolicy_send(zfs_cmd_t *zc, cred_t *cr)
388 return (zfs_secpolicy_write_perms(zc->zc_name,
389 ZFS_DELEG_PERM_SEND, cr));
393 zfs_secpolicy_share(zfs_cmd_t *zc, cred_t *cr)
395 if (!INGLOBALZONE(curproc))
398 if (secpolicy_nfs(cr) == 0) {
404 if ((error = lookupname(zc->zc_value, UIO_SYSSPACE,
405 NO_FOLLOW, NULL, &vp)) != 0)
408 /* Now make sure mntpnt and dataset are ZFS */
410 if (vp->v_vfsp->vfs_fstype != zfsfstype ||
411 (strcmp((char *)refstr_value(vp->v_vfsp->vfs_resource),
412 zc->zc_name) != 0)) {
418 return (dsl_deleg_access(zc->zc_name,
419 ZFS_DELEG_PERM_SHARE, cr));
424 zfs_get_parent(const char *datasetname, char *parent, int parentsize)
429 * Remove the @bla or /bla from the end of the name to get the parent.
431 (void) strncpy(parent, datasetname, parentsize);
432 cp = strrchr(parent, '@');
436 cp = strrchr(parent, '/');
446 zfs_secpolicy_destroy_perms(const char *name, cred_t *cr)
450 if ((error = zfs_secpolicy_write_perms(name,
451 ZFS_DELEG_PERM_MOUNT, cr)) != 0)
454 return (zfs_secpolicy_write_perms(name, ZFS_DELEG_PERM_DESTROY, cr));
458 zfs_secpolicy_destroy(zfs_cmd_t *zc, cred_t *cr)
460 return (zfs_secpolicy_destroy_perms(zc->zc_name, cr));
464 * Must have sys_config privilege to check the iscsi permission
468 zfs_secpolicy_iscsi(zfs_cmd_t *zc, cred_t *cr)
470 return (secpolicy_zfs(cr));
474 zfs_secpolicy_rename_perms(const char *from, const char *to, cred_t *cr)
476 char parentname[MAXNAMELEN];
479 if ((error = zfs_secpolicy_write_perms(from,
480 ZFS_DELEG_PERM_RENAME, cr)) != 0)
483 if ((error = zfs_secpolicy_write_perms(from,
484 ZFS_DELEG_PERM_MOUNT, cr)) != 0)
487 if ((error = zfs_get_parent(to, parentname,
488 sizeof (parentname))) != 0)
491 if ((error = zfs_secpolicy_write_perms(parentname,
492 ZFS_DELEG_PERM_CREATE, cr)) != 0)
495 if ((error = zfs_secpolicy_write_perms(parentname,
496 ZFS_DELEG_PERM_MOUNT, cr)) != 0)
503 zfs_secpolicy_rename(zfs_cmd_t *zc, cred_t *cr)
505 return (zfs_secpolicy_rename_perms(zc->zc_name, zc->zc_value, cr));
509 zfs_secpolicy_promote(zfs_cmd_t *zc, cred_t *cr)
511 char parentname[MAXNAMELEN];
515 error = zfs_secpolicy_write_perms(zc->zc_name,
516 ZFS_DELEG_PERM_PROMOTE, cr);
520 error = dmu_objset_open(zc->zc_name, DMU_OST_ANY,
521 DS_MODE_USER | DS_MODE_READONLY, &clone);
524 dsl_dataset_t *pclone = NULL;
526 dd = clone->os->os_dsl_dataset->ds_dir;
528 rw_enter(&dd->dd_pool->dp_config_rwlock, RW_READER);
529 error = dsl_dataset_hold_obj(dd->dd_pool,
530 dd->dd_phys->dd_origin_obj, FTAG, &pclone);
531 rw_exit(&dd->dd_pool->dp_config_rwlock);
533 dmu_objset_close(clone);
537 error = zfs_secpolicy_write_perms(zc->zc_name,
538 ZFS_DELEG_PERM_MOUNT, cr);
540 dsl_dataset_name(pclone, parentname);
541 dmu_objset_close(clone);
542 dsl_dataset_rele(pclone, FTAG);
544 error = zfs_secpolicy_write_perms(parentname,
545 ZFS_DELEG_PERM_PROMOTE, cr);
551 zfs_secpolicy_receive(zfs_cmd_t *zc, cred_t *cr)
555 if ((error = zfs_secpolicy_write_perms(zc->zc_name,
556 ZFS_DELEG_PERM_RECEIVE, cr)) != 0)
559 if ((error = zfs_secpolicy_write_perms(zc->zc_name,
560 ZFS_DELEG_PERM_MOUNT, cr)) != 0)
563 return (zfs_secpolicy_write_perms(zc->zc_name,
564 ZFS_DELEG_PERM_CREATE, cr));
568 zfs_secpolicy_snapshot_perms(const char *name, cred_t *cr)
572 if ((error = zfs_secpolicy_write_perms(name,
573 ZFS_DELEG_PERM_SNAPSHOT, cr)) != 0)
576 error = zfs_secpolicy_write_perms(name,
577 ZFS_DELEG_PERM_MOUNT, cr);
583 zfs_secpolicy_snapshot(zfs_cmd_t *zc, cred_t *cr)
586 return (zfs_secpolicy_snapshot_perms(zc->zc_name, cr));
590 zfs_secpolicy_create(zfs_cmd_t *zc, cred_t *cr)
592 char parentname[MAXNAMELEN];
595 if ((error = zfs_get_parent(zc->zc_name, parentname,
596 sizeof (parentname))) != 0)
599 if (zc->zc_value[0] != '\0') {
600 if ((error = zfs_secpolicy_write_perms(zc->zc_value,
601 ZFS_DELEG_PERM_CLONE, cr)) != 0)
605 if ((error = zfs_secpolicy_write_perms(parentname,
606 ZFS_DELEG_PERM_CREATE, cr)) != 0)
609 error = zfs_secpolicy_write_perms(parentname,
610 ZFS_DELEG_PERM_MOUNT, cr);
616 zfs_secpolicy_umount(zfs_cmd_t *zc, cred_t *cr)
620 error = secpolicy_fs_unmount(cr, NULL);
622 error = dsl_deleg_access(zc->zc_name, ZFS_DELEG_PERM_MOUNT, cr);
628 * Policy for pool operations - create/destroy pools, add vdevs, etc. Requires
629 * SYS_CONFIG privilege, which is not available in a local zone.
633 zfs_secpolicy_config(zfs_cmd_t *zc, cred_t *cr)
635 if (secpolicy_sys_config(cr, B_FALSE) != 0)
642 * Just like zfs_secpolicy_config, except that we will check for
643 * mount permission on the dataset for permission to create/remove
647 zfs_secpolicy_minor(zfs_cmd_t *zc, cred_t *cr)
649 if (secpolicy_sys_config(cr, B_FALSE) != 0) {
650 return (dsl_deleg_access(zc->zc_name,
651 ZFS_DELEG_PERM_MOUNT, cr));
658 * Policy for fault injection. Requires all privileges.
662 zfs_secpolicy_inject(zfs_cmd_t *zc, cred_t *cr)
664 return (secpolicy_zinject(cr));
668 zfs_secpolicy_inherit(zfs_cmd_t *zc, cred_t *cr)
670 zfs_prop_t prop = zfs_name_to_prop(zc->zc_value);
672 if (prop == ZPROP_INVAL) {
673 if (!zfs_prop_user(zc->zc_value))
675 return (zfs_secpolicy_write_perms(zc->zc_name,
676 ZFS_DELEG_PERM_USERPROP, cr));
678 if (!zfs_prop_inheritable(prop))
680 return (zfs_secpolicy_setprop(zc->zc_name, prop, cr));
685 * Returns the nvlist as specified by the user in the zfs_cmd_t.
688 get_nvlist(uint64_t nvl, uint64_t size, nvlist_t **nvp)
692 nvlist_t *list = NULL;
695 * Read in and unpack the user-supplied nvlist.
700 packed = kmem_alloc(size, KM_SLEEP);
702 if ((error = xcopyin((void *)(uintptr_t)nvl, packed, size)) != 0) {
703 kmem_free(packed, size);
707 if ((error = nvlist_unpack(packed, size, &list, 0)) != 0) {
708 kmem_free(packed, size);
712 kmem_free(packed, size);
719 put_nvlist(zfs_cmd_t *zc, nvlist_t *nvl)
725 VERIFY(nvlist_size(nvl, &size, NV_ENCODE_NATIVE) == 0);
727 if (size > zc->zc_nvlist_dst_size) {
730 packed = kmem_alloc(size, KM_SLEEP);
731 VERIFY(nvlist_pack(nvl, &packed, &size, NV_ENCODE_NATIVE,
733 error = xcopyout(packed, (void *)(uintptr_t)zc->zc_nvlist_dst,
735 kmem_free(packed, size);
738 zc->zc_nvlist_dst_size = size;
743 zfs_ioc_pool_create(zfs_cmd_t *zc)
746 nvlist_t *config, *props = NULL;
747 nvlist_t *rootprops = NULL;
748 nvlist_t *zplprops = NULL;
751 if (error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
755 if (zc->zc_nvlist_src_size != 0 && (error =
756 get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, &props))) {
762 nvlist_t *nvl = NULL;
763 uint64_t version = SPA_VERSION;
765 (void) nvlist_lookup_uint64(props,
766 zpool_prop_to_name(ZPOOL_PROP_VERSION), &version);
767 if (version < SPA_VERSION_INITIAL || version > SPA_VERSION) {
771 (void) nvlist_lookup_nvlist(props, ZPOOL_ROOTFS_PROPS, &nvl);
773 error = nvlist_dup(nvl, &rootprops, KM_SLEEP);
779 (void) nvlist_remove_all(props, ZPOOL_ROOTFS_PROPS);
781 VERIFY(nvlist_alloc(&zplprops, NV_UNIQUE_NAME, KM_SLEEP) == 0);
782 error = zfs_fill_zplprops_root(version, rootprops,
788 buf = history_str_get(zc);
790 error = spa_create(zc->zc_name, config, props, buf, zplprops);
793 * Set the remaining root properties
796 (error = zfs_set_prop_nvlist(zc->zc_name, rootprops)) != 0)
797 (void) spa_destroy(zc->zc_name);
800 history_str_free(buf);
803 nvlist_free(rootprops);
804 nvlist_free(zplprops);
812 zfs_ioc_pool_destroy(zfs_cmd_t *zc)
816 error = spa_destroy(zc->zc_name);
821 zfs_ioc_pool_import(zfs_cmd_t *zc)
824 nvlist_t *config, *props = NULL;
827 if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
831 if (zc->zc_nvlist_src_size != 0 && (error =
832 get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, &props))) {
837 if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &guid) != 0 ||
840 else if (zc->zc_cookie)
841 error = spa_import_faulted(zc->zc_name, config,
844 error = spa_import(zc->zc_name, config, props);
855 zfs_ioc_pool_export(zfs_cmd_t *zc)
858 boolean_t force = (boolean_t)zc->zc_cookie;
859 boolean_t hardforce = (boolean_t)zc->zc_guid;
862 error = spa_export(zc->zc_name, NULL, force, hardforce);
867 zfs_ioc_pool_configs(zfs_cmd_t *zc)
872 if ((configs = spa_all_configs(&zc->zc_cookie)) == NULL)
875 error = put_nvlist(zc, configs);
877 nvlist_free(configs);
883 zfs_ioc_pool_stats(zfs_cmd_t *zc)
889 error = spa_get_stats(zc->zc_name, &config, zc->zc_value,
890 sizeof (zc->zc_value));
892 if (config != NULL) {
893 ret = put_nvlist(zc, config);
897 * The config may be present even if 'error' is non-zero.
898 * In this case we return success, and preserve the real errno
901 zc->zc_cookie = error;
910 * Try to import the given pool, returning pool stats as appropriate so that
911 * user land knows which devices are available and overall pool health.
914 zfs_ioc_pool_tryimport(zfs_cmd_t *zc)
916 nvlist_t *tryconfig, *config;
919 if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
923 config = spa_tryimport(tryconfig);
925 nvlist_free(tryconfig);
930 error = put_nvlist(zc, config);
937 zfs_ioc_pool_scrub(zfs_cmd_t *zc)
942 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
945 error = spa_scrub(spa, zc->zc_cookie);
947 spa_close(spa, FTAG);
953 zfs_ioc_pool_freeze(zfs_cmd_t *zc)
958 error = spa_open(zc->zc_name, &spa, FTAG);
961 spa_close(spa, FTAG);
967 zfs_ioc_pool_upgrade(zfs_cmd_t *zc)
972 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
975 if (zc->zc_cookie < spa_version(spa) || zc->zc_cookie > SPA_VERSION) {
976 spa_close(spa, FTAG);
980 spa_upgrade(spa, zc->zc_cookie);
981 spa_close(spa, FTAG);
987 zfs_ioc_pool_get_history(zfs_cmd_t *zc)
994 if ((size = zc->zc_history_len) == 0)
997 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
1000 if (spa_version(spa) < SPA_VERSION_ZPOOL_HISTORY) {
1001 spa_close(spa, FTAG);
1005 hist_buf = kmem_alloc(size, KM_SLEEP);
1006 if ((error = spa_history_get(spa, &zc->zc_history_offset,
1007 &zc->zc_history_len, hist_buf)) == 0) {
1008 error = xcopyout(hist_buf,
1009 (char *)(uintptr_t)zc->zc_history,
1010 zc->zc_history_len);
1013 spa_close(spa, FTAG);
1014 kmem_free(hist_buf, size);
1019 zfs_ioc_dsobj_to_dsname(zfs_cmd_t *zc)
1023 if (error = dsl_dsobj_to_dsname(zc->zc_name, zc->zc_obj, zc->zc_value))
1030 zfs_ioc_obj_to_path(zfs_cmd_t *zc)
1035 if ((error = dmu_objset_open(zc->zc_name, DMU_OST_ZFS,
1036 DS_MODE_USER | DS_MODE_READONLY, &osp)) != 0)
1038 error = zfs_obj_to_path(osp, zc->zc_obj, zc->zc_value,
1039 sizeof (zc->zc_value));
1040 dmu_objset_close(osp);
1046 zfs_ioc_vdev_add(zfs_cmd_t *zc)
1050 nvlist_t *config, **l2cache, **spares;
1051 uint_t nl2cache = 0, nspares = 0;
1053 error = spa_open(zc->zc_name, &spa, FTAG);
1057 error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
1059 (void) nvlist_lookup_nvlist_array(config, ZPOOL_CONFIG_L2CACHE,
1060 &l2cache, &nl2cache);
1062 (void) nvlist_lookup_nvlist_array(config, ZPOOL_CONFIG_SPARES,
1066 * A root pool with concatenated devices is not supported.
1067 * Thus, can not add a device to a root pool.
1069 * Intent log device can not be added to a rootpool because
1070 * during mountroot, zil is replayed, a seperated log device
1071 * can not be accessed during the mountroot time.
1073 * l2cache and spare devices are ok to be added to a rootpool.
1075 if (spa->spa_bootfs != 0 && nl2cache == 0 && nspares == 0) {
1076 spa_close(spa, FTAG);
1081 error = spa_vdev_add(spa, config);
1082 nvlist_free(config);
1084 spa_close(spa, FTAG);
1089 zfs_ioc_vdev_remove(zfs_cmd_t *zc)
1094 error = spa_open(zc->zc_name, &spa, FTAG);
1097 error = spa_vdev_remove(spa, zc->zc_guid, B_FALSE);
1098 spa_close(spa, FTAG);
1103 zfs_ioc_vdev_set_state(zfs_cmd_t *zc)
1107 vdev_state_t newstate = VDEV_STATE_UNKNOWN;
1109 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
1111 switch (zc->zc_cookie) {
1112 case VDEV_STATE_ONLINE:
1113 error = vdev_online(spa, zc->zc_guid, zc->zc_obj, &newstate);
1116 case VDEV_STATE_OFFLINE:
1117 error = vdev_offline(spa, zc->zc_guid, zc->zc_obj);
1120 case VDEV_STATE_FAULTED:
1121 error = vdev_fault(spa, zc->zc_guid);
1124 case VDEV_STATE_DEGRADED:
1125 error = vdev_degrade(spa, zc->zc_guid);
1131 zc->zc_cookie = newstate;
1132 spa_close(spa, FTAG);
1137 zfs_ioc_vdev_attach(zfs_cmd_t *zc)
1140 int replacing = zc->zc_cookie;
1144 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
1147 if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
1149 error = spa_vdev_attach(spa, zc->zc_guid, config, replacing);
1150 nvlist_free(config);
1153 spa_close(spa, FTAG);
1158 zfs_ioc_vdev_detach(zfs_cmd_t *zc)
1163 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
1166 error = spa_vdev_detach(spa, zc->zc_guid, 0, B_FALSE);
1168 spa_close(spa, FTAG);
1173 zfs_ioc_vdev_setpath(zfs_cmd_t *zc)
1176 char *path = zc->zc_value;
1177 uint64_t guid = zc->zc_guid;
1180 error = spa_open(zc->zc_name, &spa, FTAG);
1184 error = spa_vdev_setpath(spa, guid, path);
1185 spa_close(spa, FTAG);
1191 * zc_name name of filesystem
1192 * zc_nvlist_dst_size size of buffer for property nvlist
1195 * zc_objset_stats stats
1196 * zc_nvlist_dst property nvlist
1197 * zc_nvlist_dst_size size of property nvlist
1200 zfs_ioc_objset_stats(zfs_cmd_t *zc)
1202 objset_t *os = NULL;
1206 if (error = dmu_objset_open(zc->zc_name,
1207 DMU_OST_ANY, DS_MODE_USER | DS_MODE_READONLY, &os))
1210 dmu_objset_fast_stat(os, &zc->zc_objset_stats);
1212 if (zc->zc_nvlist_dst != 0 &&
1213 (error = dsl_prop_get_all(os, &nv, FALSE)) == 0) {
1214 dmu_objset_stats(os, nv);
1216 * NB: zvol_get_stats() will read the objset contents,
1217 * which we aren't supposed to do with a
1218 * DS_MODE_USER hold, because it could be
1219 * inconsistent. So this is a bit of a workaround...
1221 if (!zc->zc_objset_stats.dds_inconsistent) {
1222 if (dmu_objset_type(os) == DMU_OST_ZVOL)
1223 VERIFY(zvol_get_stats(os, nv) == 0);
1225 error = put_nvlist(zc, nv);
1229 dmu_objset_close(os);
1234 nvl_add_zplprop(objset_t *os, nvlist_t *props, zfs_prop_t prop)
1240 * zfs_get_zplprop() will either find a value or give us
1241 * the default value (if there is one).
1243 if ((error = zfs_get_zplprop(os, prop, &value)) != 0)
1245 VERIFY(nvlist_add_uint64(props, zfs_prop_to_name(prop), value) == 0);
1251 * zc_name name of filesystem
1252 * zc_nvlist_dst_size size of buffer for zpl property nvlist
1255 * zc_nvlist_dst zpl property nvlist
1256 * zc_nvlist_dst_size size of zpl property nvlist
1259 zfs_ioc_objset_zplprops(zfs_cmd_t *zc)
1264 if (err = dmu_objset_open(zc->zc_name,
1265 DMU_OST_ANY, DS_MODE_USER | DS_MODE_READONLY, &os))
1268 dmu_objset_fast_stat(os, &zc->zc_objset_stats);
1271 * NB: nvl_add_zplprop() will read the objset contents,
1272 * which we aren't supposed to do with a DS_MODE_USER
1273 * hold, because it could be inconsistent.
1275 if (zc->zc_nvlist_dst != NULL &&
1276 !zc->zc_objset_stats.dds_inconsistent &&
1277 dmu_objset_type(os) == DMU_OST_ZFS) {
1280 VERIFY(nvlist_alloc(&nv, NV_UNIQUE_NAME, KM_SLEEP) == 0);
1281 if ((err = nvl_add_zplprop(os, nv, ZFS_PROP_VERSION)) == 0 &&
1282 (err = nvl_add_zplprop(os, nv, ZFS_PROP_NORMALIZE)) == 0 &&
1283 (err = nvl_add_zplprop(os, nv, ZFS_PROP_UTF8ONLY)) == 0 &&
1284 (err = nvl_add_zplprop(os, nv, ZFS_PROP_CASE)) == 0)
1285 err = put_nvlist(zc, nv);
1290 dmu_objset_close(os);
1296 * zc_name name of filesystem
1297 * zc_cookie zap cursor
1298 * zc_nvlist_dst_size size of buffer for property nvlist
1301 * zc_name name of next filesystem
1302 * zc_objset_stats stats
1303 * zc_nvlist_dst property nvlist
1304 * zc_nvlist_dst_size size of property nvlist
1307 zfs_ioc_dataset_list_next(zfs_cmd_t *zc)
1313 if (error = dmu_objset_open(zc->zc_name,
1314 DMU_OST_ANY, DS_MODE_USER | DS_MODE_READONLY, &os)) {
1315 if (error == ENOENT)
1320 p = strrchr(zc->zc_name, '/');
1321 if (p == NULL || p[1] != '\0')
1322 (void) strlcat(zc->zc_name, "/", sizeof (zc->zc_name));
1323 p = zc->zc_name + strlen(zc->zc_name);
1325 if (zc->zc_cookie == 0) {
1326 uint64_t cookie = 0;
1327 int len = sizeof (zc->zc_name) - (p - zc->zc_name);
1329 while (dmu_dir_list_next(os, len, p, NULL, &cookie) == 0)
1330 dmu_objset_prefetch(p, NULL);
1334 error = dmu_dir_list_next(os,
1335 sizeof (zc->zc_name) - (p - zc->zc_name), p,
1336 NULL, &zc->zc_cookie);
1337 if (error == ENOENT)
1339 } while (error == 0 && !INGLOBALZONE(curproc) &&
1340 !zone_dataset_visible(zc->zc_name, NULL));
1341 dmu_objset_close(os);
1344 * If it's a hidden dataset (ie. with a '$' in its name), don't
1345 * try to get stats for it. Userland will skip over it.
1347 if (error == 0 && strchr(zc->zc_name, '$') == NULL)
1348 error = zfs_ioc_objset_stats(zc); /* fill in the stats */
1355 * zc_name name of filesystem
1356 * zc_cookie zap cursor
1357 * zc_nvlist_dst_size size of buffer for property nvlist
1360 * zc_name name of next snapshot
1361 * zc_objset_stats stats
1362 * zc_nvlist_dst property nvlist
1363 * zc_nvlist_dst_size size of property nvlist
1366 zfs_ioc_snapshot_list_next(zfs_cmd_t *zc)
1371 error = dmu_objset_open(zc->zc_name,
1372 DMU_OST_ANY, DS_MODE_USER | DS_MODE_READONLY, &os);
1374 return (error == ENOENT ? ESRCH : error);
1376 if (zc->zc_cookie == 0)
1377 dmu_objset_find(zc->zc_name, dmu_objset_prefetch,
1378 NULL, DS_FIND_SNAPSHOTS);
1380 * A dataset name of maximum length cannot have any snapshots,
1381 * so exit immediately.
1383 if (strlcat(zc->zc_name, "@", sizeof (zc->zc_name)) >= MAXNAMELEN) {
1384 dmu_objset_close(os);
1388 error = dmu_snapshot_list_next(os,
1389 sizeof (zc->zc_name) - strlen(zc->zc_name),
1390 zc->zc_name + strlen(zc->zc_name), NULL, &zc->zc_cookie, NULL);
1391 dmu_objset_close(os);
1393 error = zfs_ioc_objset_stats(zc); /* fill in the stats */
1394 else if (error == ENOENT)
1397 /* if we failed, undo the @ that we tacked on to zc_name */
1399 *strchr(zc->zc_name, '@') = '\0';
1404 zfs_set_prop_nvlist(const char *name, nvlist_t *nvl)
1412 * First validate permission to set all of the properties
1415 while ((elem = nvlist_next_nvpair(nvl, elem)) != NULL) {
1416 const char *propname = nvpair_name(elem);
1417 zfs_prop_t prop = zfs_name_to_prop(propname);
1419 if (prop == ZPROP_INVAL) {
1421 * If this is a user-defined property, it must be a
1422 * string, and there is no further validation to do.
1424 if (!zfs_prop_user(propname) ||
1425 nvpair_type(elem) != DATA_TYPE_STRING)
1428 if (error = zfs_secpolicy_write_perms(name,
1429 ZFS_DELEG_PERM_USERPROP, CRED()))
1434 if ((error = zfs_secpolicy_setprop(name, prop, CRED())) != 0)
1438 * Check that this value is valid for this pool version
1441 case ZFS_PROP_COMPRESSION:
1443 * If the user specified gzip compression, make sure
1444 * the SPA supports it. We ignore any errors here since
1445 * we'll catch them later.
1447 if (nvpair_type(elem) == DATA_TYPE_UINT64 &&
1448 nvpair_value_uint64(elem, &intval) == 0) {
1449 if (intval >= ZIO_COMPRESS_GZIP_1 &&
1450 intval <= ZIO_COMPRESS_GZIP_9 &&
1451 zfs_earlier_version(name,
1452 SPA_VERSION_GZIP_COMPRESSION))
1456 * If this is a bootable dataset then
1457 * verify that the compression algorithm
1458 * is supported for booting. We must return
1459 * something other than ENOTSUP since it
1460 * implies a downrev pool version.
1462 if (zfs_is_bootfs(name) &&
1463 !BOOTFS_COMPRESS_VALID(intval))
1468 case ZFS_PROP_COPIES:
1469 if (zfs_earlier_version(name,
1470 SPA_VERSION_DITTO_BLOCKS))
1474 case ZFS_PROP_SHARESMB:
1475 if (zpl_earlier_version(name, ZPL_VERSION_FUID))
1479 case ZFS_PROP_ACLINHERIT:
1480 if (nvpair_type(elem) == DATA_TYPE_UINT64 &&
1481 nvpair_value_uint64(elem, &intval) == 0)
1482 if (intval == ZFS_ACL_PASSTHROUGH_X &&
1483 zfs_earlier_version(name,
1484 SPA_VERSION_PASSTHROUGH_X))
1490 while ((elem = nvlist_next_nvpair(nvl, elem)) != NULL) {
1491 const char *propname = nvpair_name(elem);
1492 zfs_prop_t prop = zfs_name_to_prop(propname);
1494 if (prop == ZPROP_INVAL) {
1495 VERIFY(nvpair_value_string(elem, &strval) == 0);
1496 error = dsl_prop_set(name, propname, 1,
1497 strlen(strval) + 1, strval);
1505 case ZFS_PROP_QUOTA:
1506 if ((error = nvpair_value_uint64(elem, &intval)) != 0 ||
1507 (error = dsl_dir_set_quota(name, intval)) != 0)
1511 case ZFS_PROP_REFQUOTA:
1512 if ((error = nvpair_value_uint64(elem, &intval)) != 0 ||
1513 (error = dsl_dataset_set_quota(name, intval)) != 0)
1517 case ZFS_PROP_RESERVATION:
1518 if ((error = nvpair_value_uint64(elem, &intval)) != 0 ||
1519 (error = dsl_dir_set_reservation(name,
1524 case ZFS_PROP_REFRESERVATION:
1525 if ((error = nvpair_value_uint64(elem, &intval)) != 0 ||
1526 (error = dsl_dataset_set_reservation(name,
1531 case ZFS_PROP_VOLSIZE:
1532 if ((error = nvpair_value_uint64(elem, &intval)) != 0 ||
1533 (error = zvol_set_volsize(name,
1534 ddi_driver_major(zfs_dip), intval)) != 0)
1538 case ZFS_PROP_VOLBLOCKSIZE:
1539 if ((error = nvpair_value_uint64(elem, &intval)) != 0 ||
1540 (error = zvol_set_volblocksize(name, intval)) != 0)
1544 case ZFS_PROP_VERSION:
1545 if ((error = nvpair_value_uint64(elem, &intval)) != 0 ||
1546 (error = zfs_set_version(name, intval)) != 0)
1551 if (nvpair_type(elem) == DATA_TYPE_STRING) {
1552 if (zfs_prop_get_type(prop) !=
1555 VERIFY(nvpair_value_string(elem, &strval) == 0);
1556 if ((error = dsl_prop_set(name,
1557 nvpair_name(elem), 1, strlen(strval) + 1,
1560 } else if (nvpair_type(elem) == DATA_TYPE_UINT64) {
1563 VERIFY(nvpair_value_uint64(elem, &intval) == 0);
1565 switch (zfs_prop_get_type(prop)) {
1566 case PROP_TYPE_NUMBER:
1568 case PROP_TYPE_STRING:
1570 case PROP_TYPE_INDEX:
1571 if (zfs_prop_index_to_string(prop,
1572 intval, &unused) != 0)
1577 "unknown property type");
1581 if ((error = dsl_prop_set(name, propname,
1582 8, 1, &intval)) != 0)
1596 * zc_name name of filesystem
1597 * zc_value name of property to inherit
1598 * zc_nvlist_src{_size} nvlist of properties to apply
1599 * zc_cookie clear existing local props?
1604 zfs_ioc_set_prop(zfs_cmd_t *zc)
1609 if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
1613 if (zc->zc_cookie) {
1614 nvlist_t *origprops;
1617 if (dmu_objset_open(zc->zc_name, DMU_OST_ANY,
1618 DS_MODE_USER | DS_MODE_READONLY, &os) == 0) {
1619 if (dsl_prop_get_all(os, &origprops, TRUE) == 0) {
1620 clear_props(zc->zc_name, origprops, nvl);
1621 nvlist_free(origprops);
1623 dmu_objset_close(os);
1628 error = zfs_set_prop_nvlist(zc->zc_name, nvl);
1636 * zc_name name of filesystem
1637 * zc_value name of property to inherit
1642 zfs_ioc_inherit_prop(zfs_cmd_t *zc)
1644 /* the property name has been validated by zfs_secpolicy_inherit() */
1645 return (dsl_prop_set(zc->zc_name, zc->zc_value, 0, 0, NULL));
1649 zfs_ioc_pool_set_props(zfs_cmd_t *zc)
1656 if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
1661 * If the only property is the configfile, then just do a spa_lookup()
1662 * to handle the faulted case.
1664 elem = nvlist_next_nvpair(props, NULL);
1665 if (elem != NULL && strcmp(nvpair_name(elem),
1666 zpool_prop_to_name(ZPOOL_PROP_CACHEFILE)) == 0 &&
1667 nvlist_next_nvpair(props, elem) == NULL) {
1668 mutex_enter(&spa_namespace_lock);
1669 if ((spa = spa_lookup(zc->zc_name)) != NULL) {
1670 spa_configfile_set(spa, props, B_FALSE);
1671 spa_config_sync(spa, B_FALSE, B_TRUE);
1673 mutex_exit(&spa_namespace_lock);
1678 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) {
1683 error = spa_prop_set(spa, props);
1686 spa_close(spa, FTAG);
1692 zfs_ioc_pool_get_props(zfs_cmd_t *zc)
1696 nvlist_t *nvp = NULL;
1698 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) {
1700 * If the pool is faulted, there may be properties we can still
1701 * get (such as altroot and cachefile), so attempt to get them
1704 mutex_enter(&spa_namespace_lock);
1705 if ((spa = spa_lookup(zc->zc_name)) != NULL)
1706 error = spa_prop_get(spa, &nvp);
1707 mutex_exit(&spa_namespace_lock);
1709 error = spa_prop_get(spa, &nvp);
1710 spa_close(spa, FTAG);
1713 if (error == 0 && zc->zc_nvlist_dst != NULL)
1714 error = put_nvlist(zc, nvp);
1723 zfs_ioc_iscsi_perm_check(zfs_cmd_t *zc)
1733 if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
1738 if ((error = nvlist_lookup_uint32(nvp,
1739 ZFS_DELEG_PERM_UID, &uid)) != 0) {
1744 if ((error = nvlist_lookup_uint32(nvp,
1745 ZFS_DELEG_PERM_GID, &gid)) != 0) {
1750 if ((error = nvlist_lookup_uint32_array(nvp, ZFS_DELEG_PERM_GROUPS,
1751 &groups, &group_cnt)) != 0) {
1755 usercred = cralloc();
1756 if ((crsetugid(usercred, uid, gid) != 0) ||
1757 (crsetgroups(usercred, group_cnt, (gid_t *)groups) != 0)) {
1763 error = dsl_deleg_access(zc->zc_name,
1764 zfs_prop_to_name(ZFS_PROP_SHAREISCSI), usercred);
1771 * zc_name name of filesystem
1772 * zc_nvlist_src{_size} nvlist of delegated permissions
1773 * zc_perm_action allow/unallow flag
1778 zfs_ioc_set_fsacl(zfs_cmd_t *zc)
1781 nvlist_t *fsaclnv = NULL;
1783 if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
1788 * Verify nvlist is constructed correctly
1790 if ((error = zfs_deleg_verify_nvlist(fsaclnv)) != 0) {
1791 nvlist_free(fsaclnv);
1796 * If we don't have PRIV_SYS_MOUNT, then validate
1797 * that user is allowed to hand out each permission in
1801 error = secpolicy_zfs(CRED());
1803 if (zc->zc_perm_action == B_FALSE) {
1804 error = dsl_deleg_can_allow(zc->zc_name,
1807 error = dsl_deleg_can_unallow(zc->zc_name,
1813 error = dsl_deleg_set(zc->zc_name, fsaclnv, zc->zc_perm_action);
1815 nvlist_free(fsaclnv);
1821 * zc_name name of filesystem
1824 * zc_nvlist_src{_size} nvlist of delegated permissions
1827 zfs_ioc_get_fsacl(zfs_cmd_t *zc)
1832 if ((error = dsl_deleg_get(zc->zc_name, &nvp)) == 0) {
1833 error = put_nvlist(zc, nvp);
1842 * zc_name name of volume
1847 zfs_ioc_create_minor(zfs_cmd_t *zc)
1849 return (zvol_create_minor(zc->zc_name, ddi_driver_major(zfs_dip)));
1854 * zc_name name of volume
1859 zfs_ioc_remove_minor(zfs_cmd_t *zc)
1861 return (zvol_remove_minor(zc->zc_name));
1865 * Search the vfs list for a specified resource. Returns a pointer to it
1866 * or NULL if no suitable entry is found. The caller of this routine
1867 * is responsible for releasing the returned vfs pointer.
1870 zfs_get_vfs(const char *resource)
1873 struct vfs *vfs_found = NULL;
1875 vfs_list_read_lock();
1878 if (strcmp(refstr_value(vfsp->vfs_resource), resource) == 0) {
1883 vfsp = vfsp->vfs_next;
1884 } while (vfsp != rootvfs);
1891 zfs_create_cb(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx)
1893 zfs_creat_t *zct = arg;
1895 zfs_create_fs(os, cr, zct->zct_zplprops, tx);
1898 #define ZFS_PROP_UNDEFINED ((uint64_t)-1)
1902 * createprops list of properties requested by creator
1903 * default_zplver zpl version to use if unspecified in createprops
1904 * fuids_ok fuids allowed in this version of the spa?
1905 * os parent objset pointer (NULL if root fs)
1908 * zplprops values for the zplprops we attach to the master node object
1909 * is_ci true if requested file system will be purely case-insensitive
1911 * Determine the settings for utf8only, normalization and
1912 * casesensitivity. Specific values may have been requested by the
1913 * creator and/or we can inherit values from the parent dataset. If
1914 * the file system is of too early a vintage, a creator can not
1915 * request settings for these properties, even if the requested
1916 * setting is the default value. We don't actually want to create dsl
1917 * properties for these, so remove them from the source nvlist after
1921 zfs_fill_zplprops_impl(objset_t *os, uint64_t default_zplver,
1922 boolean_t fuids_ok, nvlist_t *createprops, nvlist_t *zplprops,
1925 uint64_t zplver = default_zplver;
1926 uint64_t sense = ZFS_PROP_UNDEFINED;
1927 uint64_t norm = ZFS_PROP_UNDEFINED;
1928 uint64_t u8 = ZFS_PROP_UNDEFINED;
1930 ASSERT(zplprops != NULL);
1933 * Pull out creator prop choices, if any.
1936 (void) nvlist_lookup_uint64(createprops,
1937 zfs_prop_to_name(ZFS_PROP_VERSION), &zplver);
1938 (void) nvlist_lookup_uint64(createprops,
1939 zfs_prop_to_name(ZFS_PROP_NORMALIZE), &norm);
1940 (void) nvlist_remove_all(createprops,
1941 zfs_prop_to_name(ZFS_PROP_NORMALIZE));
1942 (void) nvlist_lookup_uint64(createprops,
1943 zfs_prop_to_name(ZFS_PROP_UTF8ONLY), &u8);
1944 (void) nvlist_remove_all(createprops,
1945 zfs_prop_to_name(ZFS_PROP_UTF8ONLY));
1946 (void) nvlist_lookup_uint64(createprops,
1947 zfs_prop_to_name(ZFS_PROP_CASE), &sense);
1948 (void) nvlist_remove_all(createprops,
1949 zfs_prop_to_name(ZFS_PROP_CASE));
1953 * If the zpl version requested is whacky or the file system
1954 * or pool is version is too "young" to support normalization
1955 * and the creator tried to set a value for one of the props,
1958 if ((zplver < ZPL_VERSION_INITIAL || zplver > ZPL_VERSION) ||
1959 (zplver >= ZPL_VERSION_FUID && !fuids_ok) ||
1960 (zplver < ZPL_VERSION_NORMALIZATION &&
1961 (norm != ZFS_PROP_UNDEFINED || u8 != ZFS_PROP_UNDEFINED ||
1962 sense != ZFS_PROP_UNDEFINED)))
1966 * Put the version in the zplprops
1968 VERIFY(nvlist_add_uint64(zplprops,
1969 zfs_prop_to_name(ZFS_PROP_VERSION), zplver) == 0);
1971 if (norm == ZFS_PROP_UNDEFINED)
1972 VERIFY(zfs_get_zplprop(os, ZFS_PROP_NORMALIZE, &norm) == 0);
1973 VERIFY(nvlist_add_uint64(zplprops,
1974 zfs_prop_to_name(ZFS_PROP_NORMALIZE), norm) == 0);
1977 * If we're normalizing, names must always be valid UTF-8 strings.
1981 if (u8 == ZFS_PROP_UNDEFINED)
1982 VERIFY(zfs_get_zplprop(os, ZFS_PROP_UTF8ONLY, &u8) == 0);
1983 VERIFY(nvlist_add_uint64(zplprops,
1984 zfs_prop_to_name(ZFS_PROP_UTF8ONLY), u8) == 0);
1986 if (sense == ZFS_PROP_UNDEFINED)
1987 VERIFY(zfs_get_zplprop(os, ZFS_PROP_CASE, &sense) == 0);
1988 VERIFY(nvlist_add_uint64(zplprops,
1989 zfs_prop_to_name(ZFS_PROP_CASE), sense) == 0);
1992 *is_ci = (sense == ZFS_CASE_INSENSITIVE);
1998 zfs_fill_zplprops(const char *dataset, nvlist_t *createprops,
1999 nvlist_t *zplprops, boolean_t *is_ci)
2001 boolean_t fuids_ok = B_TRUE;
2002 uint64_t zplver = ZPL_VERSION;
2003 objset_t *os = NULL;
2004 char parentname[MAXNAMELEN];
2008 (void) strlcpy(parentname, dataset, sizeof (parentname));
2009 cp = strrchr(parentname, '/');
2013 if (zfs_earlier_version(dataset, SPA_VERSION_FUID)) {
2014 zplver = ZPL_VERSION_FUID - 1;
2019 * Open parent object set so we can inherit zplprop values.
2021 if ((error = dmu_objset_open(parentname, DMU_OST_ANY,
2022 DS_MODE_USER | DS_MODE_READONLY, &os)) != 0)
2025 error = zfs_fill_zplprops_impl(os, zplver, fuids_ok, createprops,
2027 dmu_objset_close(os);
2032 zfs_fill_zplprops_root(uint64_t spa_vers, nvlist_t *createprops,
2033 nvlist_t *zplprops, boolean_t *is_ci)
2035 boolean_t fuids_ok = B_TRUE;
2036 uint64_t zplver = ZPL_VERSION;
2039 if (spa_vers < SPA_VERSION_FUID) {
2040 zplver = ZPL_VERSION_FUID - 1;
2044 error = zfs_fill_zplprops_impl(NULL, zplver, fuids_ok, createprops,
2051 * zc_objset_type type of objset to create (fs vs zvol)
2052 * zc_name name of new objset
2053 * zc_value name of snapshot to clone from (may be empty)
2054 * zc_nvlist_src{_size} nvlist of properties to apply
2059 zfs_ioc_create(zfs_cmd_t *zc)
2064 nvlist_t *nvprops = NULL;
2065 void (*cbfunc)(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx);
2066 dmu_objset_type_t type = zc->zc_objset_type;
2071 cbfunc = zfs_create_cb;
2075 cbfunc = zvol_create_cb;
2082 if (strchr(zc->zc_name, '@') ||
2083 strchr(zc->zc_name, '%'))
2086 if (zc->zc_nvlist_src != NULL &&
2087 (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
2091 zct.zct_zplprops = NULL;
2092 zct.zct_props = nvprops;
2094 if (zc->zc_value[0] != '\0') {
2096 * We're creating a clone of an existing snapshot.
2098 zc->zc_value[sizeof (zc->zc_value) - 1] = '\0';
2099 if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0) {
2100 nvlist_free(nvprops);
2104 error = dmu_objset_open(zc->zc_value, type,
2105 DS_MODE_USER | DS_MODE_READONLY, &clone);
2107 nvlist_free(nvprops);
2111 error = dmu_objset_create(zc->zc_name, type, clone, 0,
2114 dmu_objset_close(clone);
2115 nvlist_free(nvprops);
2118 dmu_objset_close(clone);
2120 boolean_t is_insensitive = B_FALSE;
2122 if (cbfunc == NULL) {
2123 nvlist_free(nvprops);
2127 if (type == DMU_OST_ZVOL) {
2128 uint64_t volsize, volblocksize;
2130 if (nvprops == NULL ||
2131 nvlist_lookup_uint64(nvprops,
2132 zfs_prop_to_name(ZFS_PROP_VOLSIZE),
2134 nvlist_free(nvprops);
2138 if ((error = nvlist_lookup_uint64(nvprops,
2139 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE),
2140 &volblocksize)) != 0 && error != ENOENT) {
2141 nvlist_free(nvprops);
2146 volblocksize = zfs_prop_default_numeric(
2147 ZFS_PROP_VOLBLOCKSIZE);
2149 if ((error = zvol_check_volblocksize(
2150 volblocksize)) != 0 ||
2151 (error = zvol_check_volsize(volsize,
2152 volblocksize)) != 0) {
2153 nvlist_free(nvprops);
2156 } else if (type == DMU_OST_ZFS) {
2160 * We have to have normalization and
2161 * case-folding flags correct when we do the
2162 * file system creation, so go figure them out
2165 VERIFY(nvlist_alloc(&zct.zct_zplprops,
2166 NV_UNIQUE_NAME, KM_SLEEP) == 0);
2167 error = zfs_fill_zplprops(zc->zc_name, nvprops,
2168 zct.zct_zplprops, &is_insensitive);
2170 nvlist_free(nvprops);
2171 nvlist_free(zct.zct_zplprops);
2175 error = dmu_objset_create(zc->zc_name, type, NULL,
2176 is_insensitive ? DS_FLAG_CI_DATASET : 0, cbfunc, &zct);
2177 nvlist_free(zct.zct_zplprops);
2181 * It would be nice to do this atomically.
2184 if ((error = zfs_set_prop_nvlist(zc->zc_name, nvprops)) != 0)
2185 (void) dmu_objset_destroy(zc->zc_name);
2187 nvlist_free(nvprops);
2191 struct snap_prop_arg {
2193 const char *snapname;
2197 set_snap_props(char *name, void *arg)
2199 struct snap_prop_arg *snpa = arg;
2200 int len = strlen(name) + strlen(snpa->snapname) + 2;
2201 char *buf = kmem_alloc(len, KM_SLEEP);
2204 (void) snprintf(buf, len, "%s@%s", name, snpa->snapname);
2205 err = zfs_set_prop_nvlist(buf, snpa->nvprops);
2207 (void) dmu_objset_destroy(buf);
2208 kmem_free(buf, len);
2214 * zc_name name of filesystem
2215 * zc_value short name of snapshot
2216 * zc_cookie recursive flag
2221 zfs_ioc_snapshot(zfs_cmd_t *zc)
2223 nvlist_t *nvprops = NULL;
2225 boolean_t recursive = zc->zc_cookie;
2227 if (snapshot_namecheck(zc->zc_value, NULL, NULL) != 0)
2230 if (zc->zc_nvlist_src != NULL &&
2231 (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
2235 error = dmu_objset_snapshot(zc->zc_name, zc->zc_value, recursive);
2238 * It would be nice to do this atomically.
2241 struct snap_prop_arg snpa;
2242 snpa.nvprops = nvprops;
2243 snpa.snapname = zc->zc_value;
2245 error = dmu_objset_find(zc->zc_name,
2246 set_snap_props, &snpa, DS_FIND_CHILDREN);
2248 (void) dmu_snapshots_destroy(zc->zc_name,
2252 error = set_snap_props(zc->zc_name, &snpa);
2255 nvlist_free(nvprops);
2260 zfs_unmount_snap(char *name, void *arg)
2265 char *snapname = arg;
2266 int len = strlen(name) + strlen(snapname) + 2;
2267 char *buf = kmem_alloc(len, KM_SLEEP);
2269 (void) strcpy(buf, name);
2270 (void) strcat(buf, "@");
2271 (void) strcat(buf, snapname);
2272 vfsp = zfs_get_vfs(buf);
2273 kmem_free(buf, len);
2274 } else if (strchr(name, '@')) {
2275 vfsp = zfs_get_vfs(name);
2280 * Always force the unmount for snapshots.
2282 int flag = MS_FORCE;
2285 if ((err = vn_vfswlock(vfsp->vfs_vnodecovered)) != 0) {
2290 if ((err = dounmount(vfsp, flag, kcred)) != 0)
2298 * zc_name name of filesystem
2299 * zc_value short name of snapshot
2304 zfs_ioc_destroy_snaps(zfs_cmd_t *zc)
2308 if (snapshot_namecheck(zc->zc_value, NULL, NULL) != 0)
2310 err = dmu_objset_find(zc->zc_name,
2311 zfs_unmount_snap, zc->zc_value, DS_FIND_CHILDREN);
2314 return (dmu_snapshots_destroy(zc->zc_name, zc->zc_value));
2319 * zc_name name of dataset to destroy
2320 * zc_objset_type type of objset
2325 zfs_ioc_destroy(zfs_cmd_t *zc)
2327 if (strchr(zc->zc_name, '@') && zc->zc_objset_type == DMU_OST_ZFS) {
2328 int err = zfs_unmount_snap(zc->zc_name, NULL);
2333 return (dmu_objset_destroy(zc->zc_name));
2338 * zc_name name of dataset to rollback (to most recent snapshot)
2343 zfs_ioc_rollback(zfs_cmd_t *zc)
2347 zfsvfs_t *zfsvfs = NULL;
2350 * Get the zfsvfs for the receiving objset. There
2351 * won't be one if we're operating on a zvol, if the
2352 * objset doesn't exist yet, or is not mounted.
2354 error = dmu_objset_open(zc->zc_name, DMU_OST_ANY, DS_MODE_USER, &os);
2358 if (dmu_objset_type(os) == DMU_OST_ZFS) {
2359 mutex_enter(&os->os->os_user_ptr_lock);
2360 zfsvfs = dmu_objset_get_user(os);
2362 VFS_HOLD(zfsvfs->z_vfs);
2363 mutex_exit(&os->os->os_user_ptr_lock);
2366 if (zfsvfs != NULL) {
2370 osname = kmem_alloc(MAXNAMELEN, KM_SLEEP);
2371 error = zfs_suspend_fs(zfsvfs, osname, &mode);
2375 ASSERT(strcmp(osname, zc->zc_name) == 0);
2376 error = dmu_objset_rollback(os);
2377 resume_err = zfs_resume_fs(zfsvfs, osname, mode);
2378 error = error ? error : resume_err;
2380 dmu_objset_close(os);
2382 kmem_free(osname, MAXNAMELEN);
2383 VFS_RELE(zfsvfs->z_vfs);
2385 error = dmu_objset_rollback(os);
2387 /* Note, the dmu_objset_rollback() releases the objset for us. */
2394 * zc_name old name of dataset
2395 * zc_value new name of dataset
2396 * zc_cookie recursive flag (only valid for snapshots)
2401 zfs_ioc_rename(zfs_cmd_t *zc)
2403 boolean_t recursive = zc->zc_cookie & 1;
2405 zc->zc_value[sizeof (zc->zc_value) - 1] = '\0';
2406 if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 ||
2407 strchr(zc->zc_value, '%'))
2411 * Unmount snapshot unless we're doing a recursive rename,
2412 * in which case the dataset code figures out which snapshots
2415 if (!recursive && strchr(zc->zc_name, '@') != NULL &&
2416 zc->zc_objset_type == DMU_OST_ZFS) {
2417 int err = zfs_unmount_snap(zc->zc_name, NULL);
2421 return (dmu_objset_rename(zc->zc_name, zc->zc_value, recursive));
2425 clear_props(char *dataset, nvlist_t *props, nvlist_t *newprops)
2432 zc = kmem_alloc(sizeof (zfs_cmd_t), KM_SLEEP);
2433 (void) strcpy(zc->zc_name, dataset);
2434 for (prop = nvlist_next_nvpair(props, NULL); prop;
2435 prop = nvlist_next_nvpair(props, prop)) {
2436 if (newprops != NULL &&
2437 nvlist_exists(newprops, nvpair_name(prop)))
2439 (void) strcpy(zc->zc_value, nvpair_name(prop));
2440 if (zfs_secpolicy_inherit(zc, CRED()) == 0)
2441 (void) zfs_ioc_inherit_prop(zc);
2443 kmem_free(zc, sizeof (zfs_cmd_t));
2448 * zc_name name of containing filesystem
2449 * zc_nvlist_src{_size} nvlist of properties to apply
2450 * zc_value name of snapshot to create
2451 * zc_string name of clone origin (if DRR_FLAG_CLONE)
2452 * zc_cookie file descriptor to recv from
2453 * zc_begin_record the BEGIN record of the stream (not byteswapped)
2454 * zc_guid force flag
2457 * zc_cookie number of bytes read
2460 zfs_ioc_recv(zfs_cmd_t *zc)
2464 dmu_recv_cookie_t drc;
2465 zfsvfs_t *zfsvfs = NULL;
2466 boolean_t force = (boolean_t)zc->zc_guid;
2469 nvlist_t *props = NULL;
2470 nvlist_t *origprops = NULL;
2471 objset_t *origin = NULL;
2473 char tofs[ZFS_MAXNAMELEN];
2475 if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 ||
2476 strchr(zc->zc_value, '@') == NULL ||
2477 strchr(zc->zc_value, '%'))
2480 (void) strcpy(tofs, zc->zc_value);
2481 tosnap = strchr(tofs, '@');
2485 if (zc->zc_nvlist_src != NULL &&
2486 (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
2497 if (dmu_objset_open(tofs, DMU_OST_ANY,
2498 DS_MODE_USER | DS_MODE_READONLY, &os) == 0) {
2500 * Try to get the zfsvfs for the receiving objset.
2501 * There won't be one if we're operating on a zvol,
2502 * if the objset doesn't exist yet, or is not mounted.
2504 mutex_enter(&os->os->os_user_ptr_lock);
2505 if (zfsvfs = dmu_objset_get_user(os)) {
2506 if (!mutex_tryenter(&zfsvfs->z_online_recv_lock)) {
2507 mutex_exit(&os->os->os_user_ptr_lock);
2508 dmu_objset_close(os);
2513 VFS_HOLD(zfsvfs->z_vfs);
2515 mutex_exit(&os->os->os_user_ptr_lock);
2518 * If new properties are supplied, they are to completely
2519 * replace the existing ones, so stash away the existing ones.
2522 (void) dsl_prop_get_all(os, &origprops, TRUE);
2524 dmu_objset_close(os);
2527 if (zc->zc_string[0]) {
2528 error = dmu_objset_open(zc->zc_string, DMU_OST_ANY,
2529 DS_MODE_USER | DS_MODE_READONLY, &origin);
2534 error = dmu_recv_begin(tofs, tosnap, &zc->zc_begin_record,
2535 force, origin, zfsvfs != NULL, &drc);
2537 dmu_objset_close(origin);
2542 * Reset properties. We do this before we receive the stream
2543 * so that the properties are applied to the new data.
2546 clear_props(tofs, origprops, props);
2548 * XXX - Note, this is all-or-nothing; should be best-effort.
2550 (void) zfs_set_prop_nvlist(tofs, props);
2554 error = dmu_recv_stream(&drc, fp->f_vnode, &off);
2556 if (error == 0 && zfsvfs) {
2561 osname = kmem_alloc(MAXNAMELEN, KM_SLEEP);
2562 error = zfs_suspend_fs(zfsvfs, osname, &mode);
2566 error = dmu_recv_end(&drc);
2567 resume_err = zfs_resume_fs(zfsvfs, osname, mode);
2568 error = error ? error : resume_err;
2570 dmu_recv_abort_cleanup(&drc);
2572 kmem_free(osname, MAXNAMELEN);
2573 } else if (error == 0) {
2574 error = dmu_recv_end(&drc);
2577 zc->zc_cookie = off - fp->f_offset;
2578 if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0)
2582 * On error, restore the original props.
2584 if (error && props) {
2585 clear_props(tofs, props, NULL);
2586 (void) zfs_set_prop_nvlist(tofs, origprops);
2590 mutex_exit(&zfsvfs->z_online_recv_lock);
2591 VFS_RELE(zfsvfs->z_vfs);
2594 nvlist_free(origprops);
2601 * zc_name name of snapshot to send
2602 * zc_value short name of incremental fromsnap (may be empty)
2603 * zc_cookie file descriptor to send stream to
2604 * zc_obj fromorigin flag (mutually exclusive with zc_value)
2609 zfs_ioc_send(zfs_cmd_t *zc)
2611 objset_t *fromsnap = NULL;
2617 error = dmu_objset_open(zc->zc_name, DMU_OST_ANY,
2618 DS_MODE_USER | DS_MODE_READONLY, &tosnap);
2622 if (zc->zc_value[0] != '\0') {
2626 buf = kmem_alloc(MAXPATHLEN, KM_SLEEP);
2627 (void) strncpy(buf, zc->zc_name, MAXPATHLEN);
2628 cp = strchr(buf, '@');
2631 (void) strncat(buf, zc->zc_value, MAXPATHLEN);
2632 error = dmu_objset_open(buf, DMU_OST_ANY,
2633 DS_MODE_USER | DS_MODE_READONLY, &fromsnap);
2634 kmem_free(buf, MAXPATHLEN);
2636 dmu_objset_close(tosnap);
2641 fp = getf(zc->zc_cookie);
2643 dmu_objset_close(tosnap);
2645 dmu_objset_close(fromsnap);
2650 error = dmu_sendbackup(tosnap, fromsnap, zc->zc_obj, fp->f_vnode, &off);
2652 if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0)
2654 releasef(zc->zc_cookie);
2656 dmu_objset_close(fromsnap);
2657 dmu_objset_close(tosnap);
2662 zfs_ioc_inject_fault(zfs_cmd_t *zc)
2666 error = zio_inject_fault(zc->zc_name, (int)zc->zc_guid, &id,
2667 &zc->zc_inject_record);
2670 zc->zc_guid = (uint64_t)id;
2676 zfs_ioc_clear_fault(zfs_cmd_t *zc)
2678 return (zio_clear_fault((int)zc->zc_guid));
2682 zfs_ioc_inject_list_next(zfs_cmd_t *zc)
2684 int id = (int)zc->zc_guid;
2687 error = zio_inject_list_next(&id, zc->zc_name, sizeof (zc->zc_name),
2688 &zc->zc_inject_record);
2696 zfs_ioc_error_log(zfs_cmd_t *zc)
2700 size_t count = (size_t)zc->zc_nvlist_dst_size;
2702 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
2705 error = spa_get_errlog(spa, (void *)(uintptr_t)zc->zc_nvlist_dst,
2708 zc->zc_nvlist_dst_size = count;
2710 zc->zc_nvlist_dst_size = spa_get_errlog_size(spa);
2712 spa_close(spa, FTAG);
2718 zfs_ioc_clear(zfs_cmd_t *zc)
2725 * On zpool clear we also fix up missing slogs
2727 mutex_enter(&spa_namespace_lock);
2728 spa = spa_lookup(zc->zc_name);
2730 mutex_exit(&spa_namespace_lock);
2733 if (spa->spa_log_state == SPA_LOG_MISSING) {
2734 /* we need to let spa_open/spa_load clear the chains */
2735 spa->spa_log_state = SPA_LOG_CLEAR;
2737 mutex_exit(&spa_namespace_lock);
2739 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
2742 spa_vdev_state_enter(spa);
2744 if (zc->zc_guid == 0) {
2747 vd = spa_lookup_by_guid(spa, zc->zc_guid, B_TRUE);
2749 (void) spa_vdev_state_exit(spa, NULL, ENODEV);
2750 spa_close(spa, FTAG);
2755 vdev_clear(spa, vd);
2757 (void) spa_vdev_state_exit(spa, NULL, 0);
2760 * Resume any suspended I/Os.
2764 spa_close(spa, FTAG);
2771 * zc_name name of filesystem
2772 * zc_value name of origin snapshot
2777 zfs_ioc_promote(zfs_cmd_t *zc)
2782 * We don't need to unmount *all* the origin fs's snapshots, but
2785 cp = strchr(zc->zc_value, '@');
2788 (void) dmu_objset_find(zc->zc_value,
2789 zfs_unmount_snap, NULL, DS_FIND_SNAPSHOTS);
2790 return (dsl_dataset_promote(zc->zc_name));
2794 * We don't want to have a hard dependency
2795 * against some special symbols in sharefs
2796 * nfs, and smbsrv. Determine them if needed when
2797 * the first file system is shared.
2798 * Neither sharefs, nfs or smbsrv are unloadable modules.
2800 int (*znfsexport_fs)(void *arg);
2801 int (*zshare_fs)(enum sharefs_sys_op, share_t *, uint32_t);
2802 int (*zsmbexport_fs)(void *arg, boolean_t add_share);
2804 int zfs_nfsshare_inited;
2805 int zfs_smbshare_inited;
2807 ddi_modhandle_t nfs_mod;
2808 ddi_modhandle_t sharefs_mod;
2809 ddi_modhandle_t smbsrv_mod;
2810 kmutex_t zfs_share_lock;
2817 ASSERT(MUTEX_HELD(&zfs_share_lock));
2818 /* Both NFS and SMB shares also require sharetab support. */
2819 if (sharefs_mod == NULL && ((sharefs_mod =
2820 ddi_modopen("fs/sharefs",
2821 KRTLD_MODE_FIRST, &error)) == NULL)) {
2824 if (zshare_fs == NULL && ((zshare_fs =
2825 (int (*)(enum sharefs_sys_op, share_t *, uint32_t))
2826 ddi_modsym(sharefs_mod, "sharefs_impl", &error)) == NULL)) {
2833 zfs_ioc_share(zfs_cmd_t *zc)
2838 switch (zc->zc_share.z_sharetype) {
2840 case ZFS_UNSHARE_NFS:
2841 if (zfs_nfsshare_inited == 0) {
2842 mutex_enter(&zfs_share_lock);
2843 if (nfs_mod == NULL && ((nfs_mod = ddi_modopen("fs/nfs",
2844 KRTLD_MODE_FIRST, &error)) == NULL)) {
2845 mutex_exit(&zfs_share_lock);
2848 if (znfsexport_fs == NULL &&
2849 ((znfsexport_fs = (int (*)(void *))
2851 "nfs_export", &error)) == NULL)) {
2852 mutex_exit(&zfs_share_lock);
2855 error = zfs_init_sharefs();
2857 mutex_exit(&zfs_share_lock);
2860 zfs_nfsshare_inited = 1;
2861 mutex_exit(&zfs_share_lock);
2865 case ZFS_UNSHARE_SMB:
2866 if (zfs_smbshare_inited == 0) {
2867 mutex_enter(&zfs_share_lock);
2868 if (smbsrv_mod == NULL && ((smbsrv_mod =
2869 ddi_modopen("drv/smbsrv",
2870 KRTLD_MODE_FIRST, &error)) == NULL)) {
2871 mutex_exit(&zfs_share_lock);
2874 if (zsmbexport_fs == NULL && ((zsmbexport_fs =
2875 (int (*)(void *, boolean_t))ddi_modsym(smbsrv_mod,
2876 "smb_server_share", &error)) == NULL)) {
2877 mutex_exit(&zfs_share_lock);
2880 error = zfs_init_sharefs();
2882 mutex_exit(&zfs_share_lock);
2885 zfs_smbshare_inited = 1;
2886 mutex_exit(&zfs_share_lock);
2893 switch (zc->zc_share.z_sharetype) {
2895 case ZFS_UNSHARE_NFS:
2897 znfsexport_fs((void *)
2898 (uintptr_t)zc->zc_share.z_exportdata))
2902 case ZFS_UNSHARE_SMB:
2903 if (error = zsmbexport_fs((void *)
2904 (uintptr_t)zc->zc_share.z_exportdata,
2905 zc->zc_share.z_sharetype == ZFS_SHARE_SMB ?
2906 B_TRUE : B_FALSE)) {
2912 opcode = (zc->zc_share.z_sharetype == ZFS_SHARE_NFS ||
2913 zc->zc_share.z_sharetype == ZFS_SHARE_SMB) ?
2914 SHAREFS_ADD : SHAREFS_REMOVE;
2917 * Add or remove share from sharetab
2919 error = zshare_fs(opcode,
2920 (void *)(uintptr_t)zc->zc_share.z_sharedata,
2921 zc->zc_share.z_sharemax);
2928 * pool create, destroy, and export don't log the history as part of
2929 * zfsdev_ioctl, but rather zfs_ioc_pool_create, and zfs_ioc_pool_export
2930 * do the logging of those commands.
2932 static zfs_ioc_vec_t zfs_ioc_vec[] = {
2933 { zfs_ioc_pool_create, zfs_secpolicy_config, POOL_NAME, B_FALSE },
2934 { zfs_ioc_pool_destroy, zfs_secpolicy_config, POOL_NAME, B_FALSE },
2935 { zfs_ioc_pool_import, zfs_secpolicy_config, POOL_NAME, B_TRUE },
2936 { zfs_ioc_pool_export, zfs_secpolicy_config, POOL_NAME, B_FALSE },
2937 { zfs_ioc_pool_configs, zfs_secpolicy_none, NO_NAME, B_FALSE },
2938 { zfs_ioc_pool_stats, zfs_secpolicy_read, POOL_NAME, B_FALSE },
2939 { zfs_ioc_pool_tryimport, zfs_secpolicy_config, NO_NAME, B_FALSE },
2940 { zfs_ioc_pool_scrub, zfs_secpolicy_config, POOL_NAME, B_TRUE },
2941 { zfs_ioc_pool_freeze, zfs_secpolicy_config, NO_NAME, B_FALSE },
2942 { zfs_ioc_pool_upgrade, zfs_secpolicy_config, POOL_NAME, B_TRUE },
2943 { zfs_ioc_pool_get_history, zfs_secpolicy_config, POOL_NAME, B_FALSE },
2944 { zfs_ioc_vdev_add, zfs_secpolicy_config, POOL_NAME, B_TRUE },
2945 { zfs_ioc_vdev_remove, zfs_secpolicy_config, POOL_NAME, B_TRUE },
2946 { zfs_ioc_vdev_set_state, zfs_secpolicy_config, POOL_NAME, B_TRUE },
2947 { zfs_ioc_vdev_attach, zfs_secpolicy_config, POOL_NAME, B_TRUE },
2948 { zfs_ioc_vdev_detach, zfs_secpolicy_config, POOL_NAME, B_TRUE },
2949 { zfs_ioc_vdev_setpath, zfs_secpolicy_config, POOL_NAME, B_FALSE },
2950 { zfs_ioc_objset_stats, zfs_secpolicy_read, DATASET_NAME, B_FALSE },
2951 { zfs_ioc_objset_zplprops, zfs_secpolicy_read, DATASET_NAME, B_FALSE },
2952 { zfs_ioc_dataset_list_next, zfs_secpolicy_read,
2953 DATASET_NAME, B_FALSE },
2954 { zfs_ioc_snapshot_list_next, zfs_secpolicy_read,
2955 DATASET_NAME, B_FALSE },
2956 { zfs_ioc_set_prop, zfs_secpolicy_none, DATASET_NAME, B_TRUE },
2957 { zfs_ioc_create_minor, zfs_secpolicy_minor, DATASET_NAME, B_FALSE },
2958 { zfs_ioc_remove_minor, zfs_secpolicy_minor, DATASET_NAME, B_FALSE },
2959 { zfs_ioc_create, zfs_secpolicy_create, DATASET_NAME, B_TRUE },
2960 { zfs_ioc_destroy, zfs_secpolicy_destroy, DATASET_NAME, B_TRUE },
2961 { zfs_ioc_rollback, zfs_secpolicy_rollback, DATASET_NAME, B_TRUE },
2962 { zfs_ioc_rename, zfs_secpolicy_rename, DATASET_NAME, B_TRUE },
2963 { zfs_ioc_recv, zfs_secpolicy_receive, DATASET_NAME, B_TRUE },
2964 { zfs_ioc_send, zfs_secpolicy_send, DATASET_NAME, B_TRUE },
2965 { zfs_ioc_inject_fault, zfs_secpolicy_inject, NO_NAME, B_FALSE },
2966 { zfs_ioc_clear_fault, zfs_secpolicy_inject, NO_NAME, B_FALSE },
2967 { zfs_ioc_inject_list_next, zfs_secpolicy_inject, NO_NAME, B_FALSE },
2968 { zfs_ioc_error_log, zfs_secpolicy_inject, POOL_NAME, B_FALSE },
2969 { zfs_ioc_clear, zfs_secpolicy_config, POOL_NAME, B_TRUE },
2970 { zfs_ioc_promote, zfs_secpolicy_promote, DATASET_NAME, B_TRUE },
2971 { zfs_ioc_destroy_snaps, zfs_secpolicy_destroy, DATASET_NAME, B_TRUE },
2972 { zfs_ioc_snapshot, zfs_secpolicy_snapshot, DATASET_NAME, B_TRUE },
2973 { zfs_ioc_dsobj_to_dsname, zfs_secpolicy_config, POOL_NAME, B_FALSE },
2974 { zfs_ioc_obj_to_path, zfs_secpolicy_config, NO_NAME, B_FALSE },
2975 { zfs_ioc_pool_set_props, zfs_secpolicy_config, POOL_NAME, B_TRUE },
2976 { zfs_ioc_pool_get_props, zfs_secpolicy_read, POOL_NAME, B_FALSE },
2977 { zfs_ioc_set_fsacl, zfs_secpolicy_fsacl, DATASET_NAME, B_TRUE },
2978 { zfs_ioc_get_fsacl, zfs_secpolicy_read, DATASET_NAME, B_FALSE },
2979 { zfs_ioc_iscsi_perm_check, zfs_secpolicy_iscsi,
2980 DATASET_NAME, B_FALSE },
2981 { zfs_ioc_share, zfs_secpolicy_share, DATASET_NAME, B_FALSE },
2982 { zfs_ioc_inherit_prop, zfs_secpolicy_inherit, DATASET_NAME, B_TRUE },
2986 zfsdev_ioctl(dev_t dev, int cmd, intptr_t arg, int flag, cred_t *cr, int *rvalp)
2992 if (getminor(dev) != 0)
2993 return (zvol_ioctl(dev, cmd, arg, flag, cr, rvalp));
2995 vec = cmd - ZFS_IOC;
2996 ASSERT3U(getmajor(dev), ==, ddi_driver_major(zfs_dip));
2998 if (vec >= sizeof (zfs_ioc_vec) / sizeof (zfs_ioc_vec[0]))
3001 zc = kmem_zalloc(sizeof (zfs_cmd_t), KM_SLEEP);
3003 error = xcopyin((void *)arg, zc, sizeof (zfs_cmd_t));
3006 error = zfs_ioc_vec[vec].zvec_secpolicy(zc, cr);
3009 * Ensure that all pool/dataset names are valid before we pass down to
3013 zc->zc_name[sizeof (zc->zc_name) - 1] = '\0';
3014 switch (zfs_ioc_vec[vec].zvec_namecheck) {
3016 if (pool_namecheck(zc->zc_name, NULL, NULL) != 0)
3021 if (dataset_namecheck(zc->zc_name, NULL, NULL) != 0)
3031 error = zfs_ioc_vec[vec].zvec_func(zc);
3033 rc = xcopyout(zc, (void *)arg, sizeof (zfs_cmd_t));
3036 if (zfs_ioc_vec[vec].zvec_his_log == B_TRUE)
3037 zfs_log_history(zc);
3040 kmem_free(zc, sizeof (zfs_cmd_t));
3045 zfs_attach(dev_info_t *dip, ddi_attach_cmd_t cmd)
3047 if (cmd != DDI_ATTACH)
3048 return (DDI_FAILURE);
3050 if (ddi_create_minor_node(dip, "zfs", S_IFCHR, 0,
3051 DDI_PSEUDO, 0) == DDI_FAILURE)
3052 return (DDI_FAILURE);
3056 ddi_report_dev(dip);
3058 return (DDI_SUCCESS);
3062 zfs_detach(dev_info_t *dip, ddi_detach_cmd_t cmd)
3064 if (spa_busy() || zfs_busy() || zvol_busy())
3065 return (DDI_FAILURE);
3067 if (cmd != DDI_DETACH)
3068 return (DDI_FAILURE);
3072 ddi_prop_remove_all(dip);
3073 ddi_remove_minor_node(dip, NULL);
3075 return (DDI_SUCCESS);
3080 zfs_info(dev_info_t *dip, ddi_info_cmd_t infocmd, void *arg, void **result)
3083 case DDI_INFO_DEVT2DEVINFO:
3085 return (DDI_SUCCESS);
3087 case DDI_INFO_DEVT2INSTANCE:
3088 *result = (void *)0;
3089 return (DDI_SUCCESS);
3092 return (DDI_FAILURE);
3096 * OK, so this is a little weird.
3098 * /dev/zfs is the control node, i.e. minor 0.
3099 * /dev/zvol/[r]dsk/pool/dataset are the zvols, minor > 0.
3101 * /dev/zfs has basically nothing to do except serve up ioctls,
3102 * so most of the standard driver entry points are in zvol.c.
3104 static struct cb_ops zfs_cb_ops = {
3105 zvol_open, /* open */
3106 zvol_close, /* close */
3107 zvol_strategy, /* strategy */
3109 zvol_dump, /* dump */
3110 zvol_read, /* read */
3111 zvol_write, /* write */
3112 zfsdev_ioctl, /* ioctl */
3116 nochpoll, /* poll */
3117 ddi_prop_op, /* prop_op */
3118 NULL, /* streamtab */
3119 D_NEW | D_MP | D_64BIT, /* Driver compatibility flag */
3120 CB_REV, /* version */
3121 nodev, /* async read */
3122 nodev, /* async write */
3125 static struct dev_ops zfs_dev_ops = {
3126 DEVO_REV, /* version */
3128 zfs_info, /* info */
3129 nulldev, /* identify */
3130 nulldev, /* probe */
3131 zfs_attach, /* attach */
3132 zfs_detach, /* detach */
3134 &zfs_cb_ops, /* driver operations */
3135 NULL, /* no bus operations */
3137 ddi_quiesce_not_needed, /* quiesce */
3140 static struct modldrv zfs_modldrv = {
3146 static struct modlinkage modlinkage = {
3148 (void *)&zfs_modlfs,
3149 (void *)&zfs_modldrv,
3154 uint_t zfs_fsyncer_key;
3155 extern uint_t rrw_tsd_key;
3162 spa_init(FREAD | FWRITE);
3166 if ((error = mod_install(&modlinkage)) != 0) {
3173 tsd_create(&zfs_fsyncer_key, NULL);
3174 tsd_create(&rrw_tsd_key, NULL);
3176 error = ldi_ident_from_mod(&modlinkage, &zfs_li);
3178 mutex_init(&zfs_share_lock, NULL, MUTEX_DEFAULT, NULL);
3188 if (spa_busy() || zfs_busy() || zvol_busy() || zio_injection_enabled)
3191 if ((error = mod_remove(&modlinkage)) != 0)
3197 if (zfs_nfsshare_inited)
3198 (void) ddi_modclose(nfs_mod);
3199 if (zfs_smbshare_inited)
3200 (void) ddi_modclose(smbsrv_mod);
3201 if (zfs_nfsshare_inited || zfs_smbshare_inited)
3202 (void) ddi_modclose(sharefs_mod);
3204 tsd_destroy(&zfs_fsyncer_key);
3205 ldi_ident_release(zfs_li);
3207 mutex_destroy(&zfs_share_lock);
3213 _info(struct modinfo *modinfop)
3215 return (mod_info(&modlinkage, modinfop));