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/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);
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;
861 error = spa_export(zc->zc_name, NULL, force);
866 zfs_ioc_pool_configs(zfs_cmd_t *zc)
871 if ((configs = spa_all_configs(&zc->zc_cookie)) == NULL)
874 error = put_nvlist(zc, configs);
876 nvlist_free(configs);
882 zfs_ioc_pool_stats(zfs_cmd_t *zc)
888 error = spa_get_stats(zc->zc_name, &config, zc->zc_value,
889 sizeof (zc->zc_value));
891 if (config != NULL) {
892 ret = put_nvlist(zc, config);
896 * The config may be present even if 'error' is non-zero.
897 * In this case we return success, and preserve the real errno
900 zc->zc_cookie = error;
909 * Try to import the given pool, returning pool stats as appropriate so that
910 * user land knows which devices are available and overall pool health.
913 zfs_ioc_pool_tryimport(zfs_cmd_t *zc)
915 nvlist_t *tryconfig, *config;
918 if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
922 config = spa_tryimport(tryconfig);
924 nvlist_free(tryconfig);
929 error = put_nvlist(zc, config);
936 zfs_ioc_pool_scrub(zfs_cmd_t *zc)
941 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
944 error = spa_scrub(spa, zc->zc_cookie);
946 spa_close(spa, FTAG);
952 zfs_ioc_pool_freeze(zfs_cmd_t *zc)
957 error = spa_open(zc->zc_name, &spa, FTAG);
960 spa_close(spa, FTAG);
966 zfs_ioc_pool_upgrade(zfs_cmd_t *zc)
971 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
974 if (zc->zc_cookie < spa_version(spa) || zc->zc_cookie > SPA_VERSION) {
975 spa_close(spa, FTAG);
979 spa_upgrade(spa, zc->zc_cookie);
980 spa_close(spa, FTAG);
986 zfs_ioc_pool_get_history(zfs_cmd_t *zc)
993 if ((size = zc->zc_history_len) == 0)
996 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
999 if (spa_version(spa) < SPA_VERSION_ZPOOL_HISTORY) {
1000 spa_close(spa, FTAG);
1004 hist_buf = kmem_alloc(size, KM_SLEEP);
1005 if ((error = spa_history_get(spa, &zc->zc_history_offset,
1006 &zc->zc_history_len, hist_buf)) == 0) {
1007 error = xcopyout(hist_buf,
1008 (char *)(uintptr_t)zc->zc_history,
1009 zc->zc_history_len);
1012 spa_close(spa, FTAG);
1013 kmem_free(hist_buf, size);
1018 zfs_ioc_dsobj_to_dsname(zfs_cmd_t *zc)
1022 if (error = dsl_dsobj_to_dsname(zc->zc_name, zc->zc_obj, zc->zc_value))
1029 zfs_ioc_obj_to_path(zfs_cmd_t *zc)
1034 if ((error = dmu_objset_open(zc->zc_name, DMU_OST_ZFS,
1035 DS_MODE_USER | DS_MODE_READONLY, &osp)) != 0)
1037 error = zfs_obj_to_path(osp, zc->zc_obj, zc->zc_value,
1038 sizeof (zc->zc_value));
1039 dmu_objset_close(osp);
1045 zfs_ioc_vdev_add(zfs_cmd_t *zc)
1049 nvlist_t *config, **l2cache, **spares;
1050 uint_t nl2cache = 0, nspares = 0;
1052 error = spa_open(zc->zc_name, &spa, FTAG);
1056 error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
1058 (void) nvlist_lookup_nvlist_array(config, ZPOOL_CONFIG_L2CACHE,
1059 &l2cache, &nl2cache);
1061 (void) nvlist_lookup_nvlist_array(config, ZPOOL_CONFIG_SPARES,
1065 * A root pool with concatenated devices is not supported.
1066 * Thus, can not add a device to a root pool.
1068 * Intent log device can not be added to a rootpool because
1069 * during mountroot, zil is replayed, a seperated log device
1070 * can not be accessed during the mountroot time.
1072 * l2cache and spare devices are ok to be added to a rootpool.
1074 if (spa->spa_bootfs != 0 && nl2cache == 0 && nspares == 0) {
1075 spa_close(spa, FTAG);
1080 error = spa_vdev_add(spa, config);
1081 nvlist_free(config);
1083 spa_close(spa, FTAG);
1088 zfs_ioc_vdev_remove(zfs_cmd_t *zc)
1093 error = spa_open(zc->zc_name, &spa, FTAG);
1096 error = spa_vdev_remove(spa, zc->zc_guid, B_FALSE);
1097 spa_close(spa, FTAG);
1102 zfs_ioc_vdev_set_state(zfs_cmd_t *zc)
1106 vdev_state_t newstate = VDEV_STATE_UNKNOWN;
1108 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
1110 switch (zc->zc_cookie) {
1111 case VDEV_STATE_ONLINE:
1112 error = vdev_online(spa, zc->zc_guid, zc->zc_obj, &newstate);
1115 case VDEV_STATE_OFFLINE:
1116 error = vdev_offline(spa, zc->zc_guid, zc->zc_obj);
1119 case VDEV_STATE_FAULTED:
1120 error = vdev_fault(spa, zc->zc_guid);
1123 case VDEV_STATE_DEGRADED:
1124 error = vdev_degrade(spa, zc->zc_guid);
1130 zc->zc_cookie = newstate;
1131 spa_close(spa, FTAG);
1136 zfs_ioc_vdev_attach(zfs_cmd_t *zc)
1139 int replacing = zc->zc_cookie;
1143 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
1146 if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
1148 error = spa_vdev_attach(spa, zc->zc_guid, config, replacing);
1149 nvlist_free(config);
1152 spa_close(spa, FTAG);
1157 zfs_ioc_vdev_detach(zfs_cmd_t *zc)
1162 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
1165 error = spa_vdev_detach(spa, zc->zc_guid, B_FALSE);
1167 spa_close(spa, FTAG);
1172 zfs_ioc_vdev_setpath(zfs_cmd_t *zc)
1175 char *path = zc->zc_value;
1176 uint64_t guid = zc->zc_guid;
1179 error = spa_open(zc->zc_name, &spa, FTAG);
1183 error = spa_vdev_setpath(spa, guid, path);
1184 spa_close(spa, FTAG);
1190 * zc_name name of filesystem
1191 * zc_nvlist_dst_size size of buffer for property nvlist
1194 * zc_objset_stats stats
1195 * zc_nvlist_dst property nvlist
1196 * zc_nvlist_dst_size size of property nvlist
1199 zfs_ioc_objset_stats(zfs_cmd_t *zc)
1201 objset_t *os = NULL;
1205 if (error = dmu_objset_open(zc->zc_name,
1206 DMU_OST_ANY, DS_MODE_USER | DS_MODE_READONLY, &os))
1209 dmu_objset_fast_stat(os, &zc->zc_objset_stats);
1211 if (zc->zc_nvlist_dst != 0 &&
1212 (error = dsl_prop_get_all(os, &nv, FALSE)) == 0) {
1213 dmu_objset_stats(os, nv);
1215 * NB: zvol_get_stats() will read the objset contents,
1216 * which we aren't supposed to do with a
1217 * DS_MODE_USER hold, because it could be
1218 * inconsistent. So this is a bit of a workaround...
1220 if (!zc->zc_objset_stats.dds_inconsistent) {
1221 if (dmu_objset_type(os) == DMU_OST_ZVOL)
1222 VERIFY(zvol_get_stats(os, nv) == 0);
1224 error = put_nvlist(zc, nv);
1228 dmu_objset_close(os);
1233 nvl_add_zplprop(objset_t *os, nvlist_t *props, zfs_prop_t prop)
1239 * zfs_get_zplprop() will either find a value or give us
1240 * the default value (if there is one).
1242 if ((error = zfs_get_zplprop(os, prop, &value)) != 0)
1244 VERIFY(nvlist_add_uint64(props, zfs_prop_to_name(prop), value) == 0);
1250 * zc_name name of filesystem
1251 * zc_nvlist_dst_size size of buffer for zpl property nvlist
1254 * zc_nvlist_dst zpl property nvlist
1255 * zc_nvlist_dst_size size of zpl property nvlist
1258 zfs_ioc_objset_zplprops(zfs_cmd_t *zc)
1263 if (err = dmu_objset_open(zc->zc_name,
1264 DMU_OST_ANY, DS_MODE_USER | DS_MODE_READONLY, &os))
1267 dmu_objset_fast_stat(os, &zc->zc_objset_stats);
1270 * NB: nvl_add_zplprop() will read the objset contents,
1271 * which we aren't supposed to do with a DS_MODE_USER
1272 * hold, because it could be inconsistent.
1274 if (zc->zc_nvlist_dst != NULL &&
1275 !zc->zc_objset_stats.dds_inconsistent &&
1276 dmu_objset_type(os) == DMU_OST_ZFS) {
1279 VERIFY(nvlist_alloc(&nv, NV_UNIQUE_NAME, KM_SLEEP) == 0);
1280 if ((err = nvl_add_zplprop(os, nv, ZFS_PROP_VERSION)) == 0 &&
1281 (err = nvl_add_zplprop(os, nv, ZFS_PROP_NORMALIZE)) == 0 &&
1282 (err = nvl_add_zplprop(os, nv, ZFS_PROP_UTF8ONLY)) == 0 &&
1283 (err = nvl_add_zplprop(os, nv, ZFS_PROP_CASE)) == 0)
1284 err = put_nvlist(zc, nv);
1289 dmu_objset_close(os);
1295 * zc_name name of filesystem
1296 * zc_cookie zap cursor
1297 * zc_nvlist_dst_size size of buffer for property nvlist
1300 * zc_name name of next filesystem
1301 * zc_objset_stats stats
1302 * zc_nvlist_dst property nvlist
1303 * zc_nvlist_dst_size size of property nvlist
1306 zfs_ioc_dataset_list_next(zfs_cmd_t *zc)
1312 if (error = dmu_objset_open(zc->zc_name,
1313 DMU_OST_ANY, DS_MODE_USER | DS_MODE_READONLY, &os)) {
1314 if (error == ENOENT)
1319 p = strrchr(zc->zc_name, '/');
1320 if (p == NULL || p[1] != '\0')
1321 (void) strlcat(zc->zc_name, "/", sizeof (zc->zc_name));
1322 p = zc->zc_name + strlen(zc->zc_name);
1325 error = dmu_dir_list_next(os,
1326 sizeof (zc->zc_name) - (p - zc->zc_name), p,
1327 NULL, &zc->zc_cookie);
1328 if (error == ENOENT)
1330 } while (error == 0 && !INGLOBALZONE(curproc) &&
1331 !zone_dataset_visible(zc->zc_name, NULL));
1332 dmu_objset_close(os);
1335 * If it's a hidden dataset (ie. with a '$' in its name), don't
1336 * try to get stats for it. Userland will skip over it.
1338 if (error == 0 && strchr(zc->zc_name, '$') == NULL)
1339 error = zfs_ioc_objset_stats(zc); /* fill in the stats */
1346 * zc_name name of filesystem
1347 * zc_cookie zap cursor
1348 * zc_nvlist_dst_size size of buffer for property nvlist
1351 * zc_name name of next snapshot
1352 * zc_objset_stats stats
1353 * zc_nvlist_dst property nvlist
1354 * zc_nvlist_dst_size size of property nvlist
1357 zfs_ioc_snapshot_list_next(zfs_cmd_t *zc)
1362 error = dmu_objset_open(zc->zc_name,
1363 DMU_OST_ANY, DS_MODE_USER | DS_MODE_READONLY, &os);
1365 return (error == ENOENT ? ESRCH : error);
1368 * A dataset name of maximum length cannot have any snapshots,
1369 * so exit immediately.
1371 if (strlcat(zc->zc_name, "@", sizeof (zc->zc_name)) >= MAXNAMELEN) {
1372 dmu_objset_close(os);
1376 error = dmu_snapshot_list_next(os,
1377 sizeof (zc->zc_name) - strlen(zc->zc_name),
1378 zc->zc_name + strlen(zc->zc_name), NULL, &zc->zc_cookie, NULL);
1379 dmu_objset_close(os);
1381 error = zfs_ioc_objset_stats(zc); /* fill in the stats */
1382 else if (error == ENOENT)
1385 /* if we failed, undo the @ that we tacked on to zc_name */
1387 *strchr(zc->zc_name, '@') = '\0';
1392 zfs_set_prop_nvlist(const char *name, nvlist_t *nvl)
1400 * First validate permission to set all of the properties
1403 while ((elem = nvlist_next_nvpair(nvl, elem)) != NULL) {
1404 const char *propname = nvpair_name(elem);
1405 zfs_prop_t prop = zfs_name_to_prop(propname);
1407 if (prop == ZPROP_INVAL) {
1409 * If this is a user-defined property, it must be a
1410 * string, and there is no further validation to do.
1412 if (!zfs_prop_user(propname) ||
1413 nvpair_type(elem) != DATA_TYPE_STRING)
1416 if (error = zfs_secpolicy_write_perms(name,
1417 ZFS_DELEG_PERM_USERPROP, CRED()))
1422 if ((error = zfs_secpolicy_setprop(name, prop, CRED())) != 0)
1426 * Check that this value is valid for this pool version
1429 case ZFS_PROP_COMPRESSION:
1431 * If the user specified gzip compression, make sure
1432 * the SPA supports it. We ignore any errors here since
1433 * we'll catch them later.
1435 if (nvpair_type(elem) == DATA_TYPE_UINT64 &&
1436 nvpair_value_uint64(elem, &intval) == 0) {
1437 if (intval >= ZIO_COMPRESS_GZIP_1 &&
1438 intval <= ZIO_COMPRESS_GZIP_9 &&
1439 zfs_earlier_version(name,
1440 SPA_VERSION_GZIP_COMPRESSION))
1444 * If this is a bootable dataset then
1445 * verify that the compression algorithm
1446 * is supported for booting. We must return
1447 * something other than ENOTSUP since it
1448 * implies a downrev pool version.
1450 if (zfs_is_bootfs(name) &&
1451 !BOOTFS_COMPRESS_VALID(intval))
1456 case ZFS_PROP_COPIES:
1457 if (zfs_earlier_version(name,
1458 SPA_VERSION_DITTO_BLOCKS))
1462 case ZFS_PROP_SHARESMB:
1463 if (zpl_earlier_version(name, ZPL_VERSION_FUID))
1467 case ZFS_PROP_ACLINHERIT:
1468 if (nvpair_type(elem) == DATA_TYPE_UINT64 &&
1469 nvpair_value_uint64(elem, &intval) == 0)
1470 if (intval == ZFS_ACL_PASSTHROUGH_X &&
1471 zfs_earlier_version(name,
1472 SPA_VERSION_PASSTHROUGH_X))
1478 while ((elem = nvlist_next_nvpair(nvl, elem)) != NULL) {
1479 const char *propname = nvpair_name(elem);
1480 zfs_prop_t prop = zfs_name_to_prop(propname);
1482 if (prop == ZPROP_INVAL) {
1483 VERIFY(nvpair_value_string(elem, &strval) == 0);
1484 error = dsl_prop_set(name, propname, 1,
1485 strlen(strval) + 1, strval);
1493 case ZFS_PROP_QUOTA:
1494 if ((error = nvpair_value_uint64(elem, &intval)) != 0 ||
1495 (error = dsl_dir_set_quota(name, intval)) != 0)
1499 case ZFS_PROP_REFQUOTA:
1500 if ((error = nvpair_value_uint64(elem, &intval)) != 0 ||
1501 (error = dsl_dataset_set_quota(name, intval)) != 0)
1505 case ZFS_PROP_RESERVATION:
1506 if ((error = nvpair_value_uint64(elem, &intval)) != 0 ||
1507 (error = dsl_dir_set_reservation(name,
1512 case ZFS_PROP_REFRESERVATION:
1513 if ((error = nvpair_value_uint64(elem, &intval)) != 0 ||
1514 (error = dsl_dataset_set_reservation(name,
1519 case ZFS_PROP_VOLSIZE:
1520 if ((error = nvpair_value_uint64(elem, &intval)) != 0 ||
1521 (error = zvol_set_volsize(name,
1522 ddi_driver_major(zfs_dip), intval)) != 0)
1526 case ZFS_PROP_VOLBLOCKSIZE:
1527 if ((error = nvpair_value_uint64(elem, &intval)) != 0 ||
1528 (error = zvol_set_volblocksize(name, intval)) != 0)
1532 case ZFS_PROP_VERSION:
1533 if ((error = nvpair_value_uint64(elem, &intval)) != 0 ||
1534 (error = zfs_set_version(name, intval)) != 0)
1539 if (nvpair_type(elem) == DATA_TYPE_STRING) {
1540 if (zfs_prop_get_type(prop) !=
1543 VERIFY(nvpair_value_string(elem, &strval) == 0);
1544 if ((error = dsl_prop_set(name,
1545 nvpair_name(elem), 1, strlen(strval) + 1,
1548 } else if (nvpair_type(elem) == DATA_TYPE_UINT64) {
1551 VERIFY(nvpair_value_uint64(elem, &intval) == 0);
1553 switch (zfs_prop_get_type(prop)) {
1554 case PROP_TYPE_NUMBER:
1556 case PROP_TYPE_STRING:
1558 case PROP_TYPE_INDEX:
1559 if (zfs_prop_index_to_string(prop,
1560 intval, &unused) != 0)
1565 "unknown property type");
1569 if ((error = dsl_prop_set(name, propname,
1570 8, 1, &intval)) != 0)
1584 * zc_name name of filesystem
1585 * zc_value name of property to inherit
1586 * zc_nvlist_src{_size} nvlist of properties to apply
1587 * zc_cookie clear existing local props?
1592 zfs_ioc_set_prop(zfs_cmd_t *zc)
1597 if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
1601 if (zc->zc_cookie) {
1602 nvlist_t *origprops;
1605 if (dmu_objset_open(zc->zc_name, DMU_OST_ANY,
1606 DS_MODE_USER | DS_MODE_READONLY, &os) == 0) {
1607 if (dsl_prop_get_all(os, &origprops, TRUE) == 0) {
1608 clear_props(zc->zc_name, origprops);
1609 nvlist_free(origprops);
1611 dmu_objset_close(os);
1616 error = zfs_set_prop_nvlist(zc->zc_name, nvl);
1624 * zc_name name of filesystem
1625 * zc_value name of property to inherit
1630 zfs_ioc_inherit_prop(zfs_cmd_t *zc)
1632 /* the property name has been validated by zfs_secpolicy_inherit() */
1633 return (dsl_prop_set(zc->zc_name, zc->zc_value, 0, 0, NULL));
1637 zfs_ioc_pool_set_props(zfs_cmd_t *zc)
1643 if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
1647 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) {
1652 error = spa_prop_set(spa, props);
1655 spa_close(spa, FTAG);
1661 zfs_ioc_pool_get_props(zfs_cmd_t *zc)
1665 nvlist_t *nvp = NULL;
1667 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
1670 error = spa_prop_get(spa, &nvp);
1672 if (error == 0 && zc->zc_nvlist_dst != NULL)
1673 error = put_nvlist(zc, nvp);
1677 spa_close(spa, FTAG);
1685 zfs_ioc_iscsi_perm_check(zfs_cmd_t *zc)
1695 if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
1700 if ((error = nvlist_lookup_uint32(nvp,
1701 ZFS_DELEG_PERM_UID, &uid)) != 0) {
1706 if ((error = nvlist_lookup_uint32(nvp,
1707 ZFS_DELEG_PERM_GID, &gid)) != 0) {
1712 if ((error = nvlist_lookup_uint32_array(nvp, ZFS_DELEG_PERM_GROUPS,
1713 &groups, &group_cnt)) != 0) {
1717 usercred = cralloc();
1718 if ((crsetugid(usercred, uid, gid) != 0) ||
1719 (crsetgroups(usercred, group_cnt, (gid_t *)groups) != 0)) {
1725 error = dsl_deleg_access(zc->zc_name,
1726 zfs_prop_to_name(ZFS_PROP_SHAREISCSI), usercred);
1733 * zc_name name of filesystem
1734 * zc_nvlist_src{_size} nvlist of delegated permissions
1735 * zc_perm_action allow/unallow flag
1740 zfs_ioc_set_fsacl(zfs_cmd_t *zc)
1743 nvlist_t *fsaclnv = NULL;
1745 if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
1750 * Verify nvlist is constructed correctly
1752 if ((error = zfs_deleg_verify_nvlist(fsaclnv)) != 0) {
1753 nvlist_free(fsaclnv);
1758 * If we don't have PRIV_SYS_MOUNT, then validate
1759 * that user is allowed to hand out each permission in
1763 error = secpolicy_zfs(CRED());
1765 if (zc->zc_perm_action == B_FALSE) {
1766 error = dsl_deleg_can_allow(zc->zc_name,
1769 error = dsl_deleg_can_unallow(zc->zc_name,
1775 error = dsl_deleg_set(zc->zc_name, fsaclnv, zc->zc_perm_action);
1777 nvlist_free(fsaclnv);
1783 * zc_name name of filesystem
1786 * zc_nvlist_src{_size} nvlist of delegated permissions
1789 zfs_ioc_get_fsacl(zfs_cmd_t *zc)
1794 if ((error = dsl_deleg_get(zc->zc_name, &nvp)) == 0) {
1795 error = put_nvlist(zc, nvp);
1804 * zc_name name of volume
1809 zfs_ioc_create_minor(zfs_cmd_t *zc)
1811 return (zvol_create_minor(zc->zc_name, ddi_driver_major(zfs_dip)));
1816 * zc_name name of volume
1821 zfs_ioc_remove_minor(zfs_cmd_t *zc)
1823 return (zvol_remove_minor(zc->zc_name));
1827 * Search the vfs list for a specified resource. Returns a pointer to it
1828 * or NULL if no suitable entry is found. The caller of this routine
1829 * is responsible for releasing the returned vfs pointer.
1832 zfs_get_vfs(const char *resource)
1835 struct vfs *vfs_found = NULL;
1837 vfs_list_read_lock();
1840 if (strcmp(refstr_value(vfsp->vfs_resource), resource) == 0) {
1845 vfsp = vfsp->vfs_next;
1846 } while (vfsp != rootvfs);
1853 zfs_create_cb(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx)
1855 zfs_creat_t *zct = arg;
1857 zfs_create_fs(os, cr, zct->zct_zplprops, tx);
1860 #define ZFS_PROP_UNDEFINED ((uint64_t)-1)
1864 * createprops list of properties requested by creator
1865 * default_zplver zpl version to use if unspecified in createprops
1866 * fuids_ok fuids allowed in this version of the spa?
1867 * os parent objset pointer (NULL if root fs)
1870 * zplprops values for the zplprops we attach to the master node object
1871 * is_ci true if requested file system will be purely case-insensitive
1873 * Determine the settings for utf8only, normalization and
1874 * casesensitivity. Specific values may have been requested by the
1875 * creator and/or we can inherit values from the parent dataset. If
1876 * the file system is of too early a vintage, a creator can not
1877 * request settings for these properties, even if the requested
1878 * setting is the default value. We don't actually want to create dsl
1879 * properties for these, so remove them from the source nvlist after
1883 zfs_fill_zplprops_impl(objset_t *os, uint64_t default_zplver,
1884 boolean_t fuids_ok, nvlist_t *createprops, nvlist_t *zplprops,
1887 uint64_t zplver = default_zplver;
1888 uint64_t sense = ZFS_PROP_UNDEFINED;
1889 uint64_t norm = ZFS_PROP_UNDEFINED;
1890 uint64_t u8 = ZFS_PROP_UNDEFINED;
1892 ASSERT(zplprops != NULL);
1895 * Pull out creator prop choices, if any.
1898 (void) nvlist_lookup_uint64(createprops,
1899 zfs_prop_to_name(ZFS_PROP_VERSION), &zplver);
1900 (void) nvlist_lookup_uint64(createprops,
1901 zfs_prop_to_name(ZFS_PROP_NORMALIZE), &norm);
1902 (void) nvlist_remove_all(createprops,
1903 zfs_prop_to_name(ZFS_PROP_NORMALIZE));
1904 (void) nvlist_lookup_uint64(createprops,
1905 zfs_prop_to_name(ZFS_PROP_UTF8ONLY), &u8);
1906 (void) nvlist_remove_all(createprops,
1907 zfs_prop_to_name(ZFS_PROP_UTF8ONLY));
1908 (void) nvlist_lookup_uint64(createprops,
1909 zfs_prop_to_name(ZFS_PROP_CASE), &sense);
1910 (void) nvlist_remove_all(createprops,
1911 zfs_prop_to_name(ZFS_PROP_CASE));
1915 * If the zpl version requested is whacky or the file system
1916 * or pool is version is too "young" to support normalization
1917 * and the creator tried to set a value for one of the props,
1920 if ((zplver < ZPL_VERSION_INITIAL || zplver > ZPL_VERSION) ||
1921 (zplver >= ZPL_VERSION_FUID && !fuids_ok) ||
1922 (zplver < ZPL_VERSION_NORMALIZATION &&
1923 (norm != ZFS_PROP_UNDEFINED || u8 != ZFS_PROP_UNDEFINED ||
1924 sense != ZFS_PROP_UNDEFINED)))
1928 * Put the version in the zplprops
1930 VERIFY(nvlist_add_uint64(zplprops,
1931 zfs_prop_to_name(ZFS_PROP_VERSION), zplver) == 0);
1933 if (norm == ZFS_PROP_UNDEFINED)
1934 VERIFY(zfs_get_zplprop(os, ZFS_PROP_NORMALIZE, &norm) == 0);
1935 VERIFY(nvlist_add_uint64(zplprops,
1936 zfs_prop_to_name(ZFS_PROP_NORMALIZE), norm) == 0);
1939 * If we're normalizing, names must always be valid UTF-8 strings.
1943 if (u8 == ZFS_PROP_UNDEFINED)
1944 VERIFY(zfs_get_zplprop(os, ZFS_PROP_UTF8ONLY, &u8) == 0);
1945 VERIFY(nvlist_add_uint64(zplprops,
1946 zfs_prop_to_name(ZFS_PROP_UTF8ONLY), u8) == 0);
1948 if (sense == ZFS_PROP_UNDEFINED)
1949 VERIFY(zfs_get_zplprop(os, ZFS_PROP_CASE, &sense) == 0);
1950 VERIFY(nvlist_add_uint64(zplprops,
1951 zfs_prop_to_name(ZFS_PROP_CASE), sense) == 0);
1954 *is_ci = (sense == ZFS_CASE_INSENSITIVE);
1960 zfs_fill_zplprops(const char *dataset, nvlist_t *createprops,
1961 nvlist_t *zplprops, boolean_t *is_ci)
1963 boolean_t fuids_ok = B_TRUE;
1964 uint64_t zplver = ZPL_VERSION;
1965 objset_t *os = NULL;
1966 char parentname[MAXNAMELEN];
1970 (void) strlcpy(parentname, dataset, sizeof (parentname));
1971 cp = strrchr(parentname, '/');
1975 if (zfs_earlier_version(dataset, SPA_VERSION_FUID)) {
1976 zplver = ZPL_VERSION_FUID - 1;
1981 * Open parent object set so we can inherit zplprop values.
1983 if ((error = dmu_objset_open(parentname, DMU_OST_ANY,
1984 DS_MODE_USER | DS_MODE_READONLY, &os)) != 0)
1987 error = zfs_fill_zplprops_impl(os, zplver, fuids_ok, createprops,
1989 dmu_objset_close(os);
1994 zfs_fill_zplprops_root(uint64_t spa_vers, nvlist_t *createprops,
1995 nvlist_t *zplprops, boolean_t *is_ci)
1997 boolean_t fuids_ok = B_TRUE;
1998 uint64_t zplver = ZPL_VERSION;
2001 if (spa_vers < SPA_VERSION_FUID) {
2002 zplver = ZPL_VERSION_FUID - 1;
2006 error = zfs_fill_zplprops_impl(NULL, zplver, fuids_ok, createprops,
2013 * zc_objset_type type of objset to create (fs vs zvol)
2014 * zc_name name of new objset
2015 * zc_value name of snapshot to clone from (may be empty)
2016 * zc_nvlist_src{_size} nvlist of properties to apply
2021 zfs_ioc_create(zfs_cmd_t *zc)
2026 nvlist_t *nvprops = NULL;
2027 void (*cbfunc)(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx);
2028 dmu_objset_type_t type = zc->zc_objset_type;
2033 cbfunc = zfs_create_cb;
2037 cbfunc = zvol_create_cb;
2044 if (strchr(zc->zc_name, '@') ||
2045 strchr(zc->zc_name, '%'))
2048 if (zc->zc_nvlist_src != NULL &&
2049 (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
2053 zct.zct_zplprops = NULL;
2054 zct.zct_props = nvprops;
2056 if (zc->zc_value[0] != '\0') {
2058 * We're creating a clone of an existing snapshot.
2060 zc->zc_value[sizeof (zc->zc_value) - 1] = '\0';
2061 if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0) {
2062 nvlist_free(nvprops);
2066 error = dmu_objset_open(zc->zc_value, type,
2067 DS_MODE_USER | DS_MODE_READONLY, &clone);
2069 nvlist_free(nvprops);
2073 error = dmu_objset_create(zc->zc_name, type, clone, 0,
2076 dmu_objset_close(clone);
2077 nvlist_free(nvprops);
2080 dmu_objset_close(clone);
2082 boolean_t is_insensitive = B_FALSE;
2084 if (cbfunc == NULL) {
2085 nvlist_free(nvprops);
2089 if (type == DMU_OST_ZVOL) {
2090 uint64_t volsize, volblocksize;
2092 if (nvprops == NULL ||
2093 nvlist_lookup_uint64(nvprops,
2094 zfs_prop_to_name(ZFS_PROP_VOLSIZE),
2096 nvlist_free(nvprops);
2100 if ((error = nvlist_lookup_uint64(nvprops,
2101 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE),
2102 &volblocksize)) != 0 && error != ENOENT) {
2103 nvlist_free(nvprops);
2108 volblocksize = zfs_prop_default_numeric(
2109 ZFS_PROP_VOLBLOCKSIZE);
2111 if ((error = zvol_check_volblocksize(
2112 volblocksize)) != 0 ||
2113 (error = zvol_check_volsize(volsize,
2114 volblocksize)) != 0) {
2115 nvlist_free(nvprops);
2118 } else if (type == DMU_OST_ZFS) {
2122 * We have to have normalization and
2123 * case-folding flags correct when we do the
2124 * file system creation, so go figure them out
2127 VERIFY(nvlist_alloc(&zct.zct_zplprops,
2128 NV_UNIQUE_NAME, KM_SLEEP) == 0);
2129 error = zfs_fill_zplprops(zc->zc_name, nvprops,
2130 zct.zct_zplprops, &is_insensitive);
2132 nvlist_free(nvprops);
2133 nvlist_free(zct.zct_zplprops);
2137 error = dmu_objset_create(zc->zc_name, type, NULL,
2138 is_insensitive ? DS_FLAG_CI_DATASET : 0, cbfunc, &zct);
2139 nvlist_free(zct.zct_zplprops);
2143 * It would be nice to do this atomically.
2146 if ((error = zfs_set_prop_nvlist(zc->zc_name, nvprops)) != 0)
2147 (void) dmu_objset_destroy(zc->zc_name);
2149 nvlist_free(nvprops);
2153 struct snap_prop_arg {
2155 const char *snapname;
2159 set_snap_props(char *name, void *arg)
2161 struct snap_prop_arg *snpa = arg;
2162 int len = strlen(name) + strlen(snpa->snapname) + 2;
2163 char *buf = kmem_alloc(len, KM_SLEEP);
2166 (void) snprintf(buf, len, "%s@%s", name, snpa->snapname);
2167 err = zfs_set_prop_nvlist(buf, snpa->nvprops);
2169 (void) dmu_objset_destroy(buf);
2170 kmem_free(buf, len);
2176 * zc_name name of filesystem
2177 * zc_value short name of snapshot
2178 * zc_cookie recursive flag
2183 zfs_ioc_snapshot(zfs_cmd_t *zc)
2185 nvlist_t *nvprops = NULL;
2187 boolean_t recursive = zc->zc_cookie;
2189 if (snapshot_namecheck(zc->zc_value, NULL, NULL) != 0)
2192 if (zc->zc_nvlist_src != NULL &&
2193 (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
2197 error = dmu_objset_snapshot(zc->zc_name, zc->zc_value, recursive);
2200 * It would be nice to do this atomically.
2203 struct snap_prop_arg snpa;
2204 snpa.nvprops = nvprops;
2205 snpa.snapname = zc->zc_value;
2207 error = dmu_objset_find(zc->zc_name,
2208 set_snap_props, &snpa, DS_FIND_CHILDREN);
2210 (void) dmu_snapshots_destroy(zc->zc_name,
2214 error = set_snap_props(zc->zc_name, &snpa);
2217 nvlist_free(nvprops);
2222 zfs_unmount_snap(char *name, void *arg)
2227 char *snapname = arg;
2228 int len = strlen(name) + strlen(snapname) + 2;
2229 char *buf = kmem_alloc(len, KM_SLEEP);
2231 (void) strcpy(buf, name);
2232 (void) strcat(buf, "@");
2233 (void) strcat(buf, snapname);
2234 vfsp = zfs_get_vfs(buf);
2235 kmem_free(buf, len);
2236 } else if (strchr(name, '@')) {
2237 vfsp = zfs_get_vfs(name);
2242 * Always force the unmount for snapshots.
2244 int flag = MS_FORCE;
2247 if ((err = vn_vfswlock(vfsp->vfs_vnodecovered)) != 0) {
2252 if ((err = dounmount(vfsp, flag, kcred)) != 0)
2260 * zc_name name of filesystem
2261 * zc_value short name of snapshot
2266 zfs_ioc_destroy_snaps(zfs_cmd_t *zc)
2270 if (snapshot_namecheck(zc->zc_value, NULL, NULL) != 0)
2272 err = dmu_objset_find(zc->zc_name,
2273 zfs_unmount_snap, zc->zc_value, DS_FIND_CHILDREN);
2276 return (dmu_snapshots_destroy(zc->zc_name, zc->zc_value));
2281 * zc_name name of dataset to destroy
2282 * zc_objset_type type of objset
2287 zfs_ioc_destroy(zfs_cmd_t *zc)
2289 if (strchr(zc->zc_name, '@') && zc->zc_objset_type == DMU_OST_ZFS) {
2290 int err = zfs_unmount_snap(zc->zc_name, NULL);
2295 return (dmu_objset_destroy(zc->zc_name));
2300 * zc_name name of dataset to rollback (to most recent snapshot)
2305 zfs_ioc_rollback(zfs_cmd_t *zc)
2309 zfsvfs_t *zfsvfs = NULL;
2312 * Get the zfsvfs for the receiving objset. There
2313 * won't be one if we're operating on a zvol, if the
2314 * objset doesn't exist yet, or is not mounted.
2316 error = dmu_objset_open(zc->zc_name, DMU_OST_ANY, DS_MODE_USER, &os);
2320 if (dmu_objset_type(os) == DMU_OST_ZFS) {
2321 mutex_enter(&os->os->os_user_ptr_lock);
2322 zfsvfs = dmu_objset_get_user(os);
2324 VFS_HOLD(zfsvfs->z_vfs);
2325 mutex_exit(&os->os->os_user_ptr_lock);
2328 if (zfsvfs != NULL) {
2332 osname = kmem_alloc(MAXNAMELEN, KM_SLEEP);
2333 error = zfs_suspend_fs(zfsvfs, osname, &mode);
2337 ASSERT(strcmp(osname, zc->zc_name) == 0);
2338 error = dmu_objset_rollback(os);
2339 resume_err = zfs_resume_fs(zfsvfs, osname, mode);
2340 error = error ? error : resume_err;
2342 dmu_objset_close(os);
2344 kmem_free(osname, MAXNAMELEN);
2345 VFS_RELE(zfsvfs->z_vfs);
2347 error = dmu_objset_rollback(os);
2349 /* Note, the dmu_objset_rollback() releases the objset for us. */
2356 * zc_name old name of dataset
2357 * zc_value new name of dataset
2358 * zc_cookie recursive flag (only valid for snapshots)
2363 zfs_ioc_rename(zfs_cmd_t *zc)
2365 boolean_t recursive = zc->zc_cookie & 1;
2367 zc->zc_value[sizeof (zc->zc_value) - 1] = '\0';
2368 if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 ||
2369 strchr(zc->zc_value, '%'))
2373 * Unmount snapshot unless we're doing a recursive rename,
2374 * in which case the dataset code figures out which snapshots
2377 if (!recursive && strchr(zc->zc_name, '@') != NULL &&
2378 zc->zc_objset_type == DMU_OST_ZFS) {
2379 int err = zfs_unmount_snap(zc->zc_name, NULL);
2383 return (dmu_objset_rename(zc->zc_name, zc->zc_value, recursive));
2387 clear_props(char *dataset, nvlist_t *props)
2394 zc = kmem_alloc(sizeof (zfs_cmd_t), KM_SLEEP);
2395 (void) strcpy(zc->zc_name, dataset);
2396 for (prop = nvlist_next_nvpair(props, NULL); prop;
2397 prop = nvlist_next_nvpair(props, prop)) {
2398 (void) strcpy(zc->zc_value, nvpair_name(prop));
2399 if (zfs_secpolicy_inherit(zc, CRED()) == 0)
2400 (void) zfs_ioc_inherit_prop(zc);
2402 kmem_free(zc, sizeof (zfs_cmd_t));
2407 * zc_name name of containing filesystem
2408 * zc_nvlist_src{_size} nvlist of properties to apply
2409 * zc_value name of snapshot to create
2410 * zc_string name of clone origin (if DRR_FLAG_CLONE)
2411 * zc_cookie file descriptor to recv from
2412 * zc_begin_record the BEGIN record of the stream (not byteswapped)
2413 * zc_guid force flag
2416 * zc_cookie number of bytes read
2419 zfs_ioc_recv(zfs_cmd_t *zc)
2423 dmu_recv_cookie_t drc;
2424 zfsvfs_t *zfsvfs = NULL;
2425 boolean_t force = (boolean_t)zc->zc_guid;
2428 nvlist_t *props = NULL;
2429 nvlist_t *origprops = NULL;
2430 objset_t *origin = NULL;
2432 char tofs[ZFS_MAXNAMELEN];
2434 if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 ||
2435 strchr(zc->zc_value, '@') == NULL ||
2436 strchr(zc->zc_value, '%'))
2439 (void) strcpy(tofs, zc->zc_value);
2440 tosnap = strchr(tofs, '@');
2444 if (zc->zc_nvlist_src != NULL &&
2445 (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
2456 if (dmu_objset_open(tofs, DMU_OST_ANY,
2457 DS_MODE_USER | DS_MODE_READONLY, &os) == 0) {
2459 * Try to get the zfsvfs for the receiving objset.
2460 * There won't be one if we're operating on a zvol,
2461 * if the objset doesn't exist yet, or is not mounted.
2463 mutex_enter(&os->os->os_user_ptr_lock);
2464 if (zfsvfs = dmu_objset_get_user(os)) {
2465 if (!mutex_tryenter(&zfsvfs->z_online_recv_lock)) {
2466 mutex_exit(&os->os->os_user_ptr_lock);
2467 dmu_objset_close(os);
2472 VFS_HOLD(zfsvfs->z_vfs);
2474 mutex_exit(&os->os->os_user_ptr_lock);
2477 * If new properties are supplied, they are to completely
2478 * replace the existing ones, so stash away the existing ones.
2481 (void) dsl_prop_get_all(os, &origprops, TRUE);
2483 dmu_objset_close(os);
2486 if (zc->zc_string[0]) {
2487 error = dmu_objset_open(zc->zc_string, DMU_OST_ANY,
2488 DS_MODE_USER | DS_MODE_READONLY, &origin);
2493 error = dmu_recv_begin(tofs, tosnap, &zc->zc_begin_record,
2494 force, origin, zfsvfs != NULL, &drc);
2496 dmu_objset_close(origin);
2501 * Reset properties. We do this before we receive the stream
2502 * so that the properties are applied to the new data.
2505 clear_props(tofs, origprops);
2507 * XXX - Note, this is all-or-nothing; should be best-effort.
2509 (void) zfs_set_prop_nvlist(tofs, props);
2513 error = dmu_recv_stream(&drc, fp->f_vnode, &off);
2515 if (error == 0 && zfsvfs) {
2520 osname = kmem_alloc(MAXNAMELEN, KM_SLEEP);
2521 error = zfs_suspend_fs(zfsvfs, osname, &mode);
2525 error = dmu_recv_end(&drc);
2526 resume_err = zfs_resume_fs(zfsvfs, osname, mode);
2527 error = error ? error : resume_err;
2529 dmu_recv_abort_cleanup(&drc);
2531 kmem_free(osname, MAXNAMELEN);
2532 } else if (error == 0) {
2533 error = dmu_recv_end(&drc);
2536 zc->zc_cookie = off - fp->f_offset;
2537 if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0)
2541 * On error, restore the original props.
2543 if (error && props) {
2544 clear_props(tofs, props);
2545 (void) zfs_set_prop_nvlist(tofs, origprops);
2549 mutex_exit(&zfsvfs->z_online_recv_lock);
2550 VFS_RELE(zfsvfs->z_vfs);
2553 nvlist_free(origprops);
2560 * zc_name name of snapshot to send
2561 * zc_value short name of incremental fromsnap (may be empty)
2562 * zc_cookie file descriptor to send stream to
2563 * zc_obj fromorigin flag (mutually exclusive with zc_value)
2568 zfs_ioc_send(zfs_cmd_t *zc)
2570 objset_t *fromsnap = NULL;
2576 error = dmu_objset_open(zc->zc_name, DMU_OST_ANY,
2577 DS_MODE_USER | DS_MODE_READONLY, &tosnap);
2581 if (zc->zc_value[0] != '\0') {
2585 buf = kmem_alloc(MAXPATHLEN, KM_SLEEP);
2586 (void) strncpy(buf, zc->zc_name, MAXPATHLEN);
2587 cp = strchr(buf, '@');
2590 (void) strncat(buf, zc->zc_value, MAXPATHLEN);
2591 error = dmu_objset_open(buf, DMU_OST_ANY,
2592 DS_MODE_USER | DS_MODE_READONLY, &fromsnap);
2593 kmem_free(buf, MAXPATHLEN);
2595 dmu_objset_close(tosnap);
2600 fp = getf(zc->zc_cookie);
2602 dmu_objset_close(tosnap);
2604 dmu_objset_close(fromsnap);
2609 error = dmu_sendbackup(tosnap, fromsnap, zc->zc_obj, fp->f_vnode, &off);
2611 if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0)
2613 releasef(zc->zc_cookie);
2615 dmu_objset_close(fromsnap);
2616 dmu_objset_close(tosnap);
2621 zfs_ioc_inject_fault(zfs_cmd_t *zc)
2625 error = zio_inject_fault(zc->zc_name, (int)zc->zc_guid, &id,
2626 &zc->zc_inject_record);
2629 zc->zc_guid = (uint64_t)id;
2635 zfs_ioc_clear_fault(zfs_cmd_t *zc)
2637 return (zio_clear_fault((int)zc->zc_guid));
2641 zfs_ioc_inject_list_next(zfs_cmd_t *zc)
2643 int id = (int)zc->zc_guid;
2646 error = zio_inject_list_next(&id, zc->zc_name, sizeof (zc->zc_name),
2647 &zc->zc_inject_record);
2655 zfs_ioc_error_log(zfs_cmd_t *zc)
2659 size_t count = (size_t)zc->zc_nvlist_dst_size;
2661 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
2664 error = spa_get_errlog(spa, (void *)(uintptr_t)zc->zc_nvlist_dst,
2667 zc->zc_nvlist_dst_size = count;
2669 zc->zc_nvlist_dst_size = spa_get_errlog_size(spa);
2671 spa_close(spa, FTAG);
2677 zfs_ioc_clear(zfs_cmd_t *zc)
2684 * On zpool clear we also fix up missing slogs
2686 mutex_enter(&spa_namespace_lock);
2687 spa = spa_lookup(zc->zc_name);
2689 mutex_exit(&spa_namespace_lock);
2692 if (spa->spa_log_state == SPA_LOG_MISSING) {
2693 /* we need to let spa_open/spa_load clear the chains */
2694 spa->spa_log_state = SPA_LOG_CLEAR;
2696 mutex_exit(&spa_namespace_lock);
2698 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
2701 spa_vdev_state_enter(spa);
2703 if (zc->zc_guid == 0) {
2706 vd = spa_lookup_by_guid(spa, zc->zc_guid, B_TRUE);
2708 (void) spa_vdev_state_exit(spa, NULL, ENODEV);
2709 spa_close(spa, FTAG);
2714 vdev_clear(spa, vd);
2716 (void) spa_vdev_state_exit(spa, NULL, 0);
2719 * Resume any suspended I/Os.
2723 spa_close(spa, FTAG);
2730 * zc_name name of filesystem
2731 * zc_value name of origin snapshot
2736 zfs_ioc_promote(zfs_cmd_t *zc)
2741 * We don't need to unmount *all* the origin fs's snapshots, but
2744 cp = strchr(zc->zc_value, '@');
2747 (void) dmu_objset_find(zc->zc_value,
2748 zfs_unmount_snap, NULL, DS_FIND_SNAPSHOTS);
2749 return (dsl_dataset_promote(zc->zc_name));
2753 * We don't want to have a hard dependency
2754 * against some special symbols in sharefs
2755 * nfs, and smbsrv. Determine them if needed when
2756 * the first file system is shared.
2757 * Neither sharefs, nfs or smbsrv are unloadable modules.
2759 int (*znfsexport_fs)(void *arg);
2760 int (*zshare_fs)(enum sharefs_sys_op, share_t *, uint32_t);
2761 int (*zsmbexport_fs)(void *arg, boolean_t add_share);
2763 int zfs_nfsshare_inited;
2764 int zfs_smbshare_inited;
2766 ddi_modhandle_t nfs_mod;
2767 ddi_modhandle_t sharefs_mod;
2768 ddi_modhandle_t smbsrv_mod;
2769 kmutex_t zfs_share_lock;
2776 ASSERT(MUTEX_HELD(&zfs_share_lock));
2777 /* Both NFS and SMB shares also require sharetab support. */
2778 if (sharefs_mod == NULL && ((sharefs_mod =
2779 ddi_modopen("fs/sharefs",
2780 KRTLD_MODE_FIRST, &error)) == NULL)) {
2783 if (zshare_fs == NULL && ((zshare_fs =
2784 (int (*)(enum sharefs_sys_op, share_t *, uint32_t))
2785 ddi_modsym(sharefs_mod, "sharefs_impl", &error)) == NULL)) {
2792 zfs_ioc_share(zfs_cmd_t *zc)
2797 switch (zc->zc_share.z_sharetype) {
2799 case ZFS_UNSHARE_NFS:
2800 if (zfs_nfsshare_inited == 0) {
2801 mutex_enter(&zfs_share_lock);
2802 if (nfs_mod == NULL && ((nfs_mod = ddi_modopen("fs/nfs",
2803 KRTLD_MODE_FIRST, &error)) == NULL)) {
2804 mutex_exit(&zfs_share_lock);
2807 if (znfsexport_fs == NULL &&
2808 ((znfsexport_fs = (int (*)(void *))
2810 "nfs_export", &error)) == NULL)) {
2811 mutex_exit(&zfs_share_lock);
2814 error = zfs_init_sharefs();
2816 mutex_exit(&zfs_share_lock);
2819 zfs_nfsshare_inited = 1;
2820 mutex_exit(&zfs_share_lock);
2824 case ZFS_UNSHARE_SMB:
2825 if (zfs_smbshare_inited == 0) {
2826 mutex_enter(&zfs_share_lock);
2827 if (smbsrv_mod == NULL && ((smbsrv_mod =
2828 ddi_modopen("drv/smbsrv",
2829 KRTLD_MODE_FIRST, &error)) == NULL)) {
2830 mutex_exit(&zfs_share_lock);
2833 if (zsmbexport_fs == NULL && ((zsmbexport_fs =
2834 (int (*)(void *, boolean_t))ddi_modsym(smbsrv_mod,
2835 "smb_server_share", &error)) == NULL)) {
2836 mutex_exit(&zfs_share_lock);
2839 error = zfs_init_sharefs();
2841 mutex_exit(&zfs_share_lock);
2844 zfs_smbshare_inited = 1;
2845 mutex_exit(&zfs_share_lock);
2852 switch (zc->zc_share.z_sharetype) {
2854 case ZFS_UNSHARE_NFS:
2856 znfsexport_fs((void *)
2857 (uintptr_t)zc->zc_share.z_exportdata))
2861 case ZFS_UNSHARE_SMB:
2862 if (error = zsmbexport_fs((void *)
2863 (uintptr_t)zc->zc_share.z_exportdata,
2864 zc->zc_share.z_sharetype == ZFS_SHARE_SMB ?
2865 B_TRUE : B_FALSE)) {
2871 opcode = (zc->zc_share.z_sharetype == ZFS_SHARE_NFS ||
2872 zc->zc_share.z_sharetype == ZFS_SHARE_SMB) ?
2873 SHAREFS_ADD : SHAREFS_REMOVE;
2876 * Add or remove share from sharetab
2878 error = zshare_fs(opcode,
2879 (void *)(uintptr_t)zc->zc_share.z_sharedata,
2880 zc->zc_share.z_sharemax);
2887 * pool create, destroy, and export don't log the history as part of
2888 * zfsdev_ioctl, but rather zfs_ioc_pool_create, and zfs_ioc_pool_export
2889 * do the logging of those commands.
2891 static zfs_ioc_vec_t zfs_ioc_vec[] = {
2892 { zfs_ioc_pool_create, zfs_secpolicy_config, POOL_NAME, B_FALSE },
2893 { zfs_ioc_pool_destroy, zfs_secpolicy_config, POOL_NAME, B_FALSE },
2894 { zfs_ioc_pool_import, zfs_secpolicy_config, POOL_NAME, B_TRUE },
2895 { zfs_ioc_pool_export, zfs_secpolicy_config, POOL_NAME, B_FALSE },
2896 { zfs_ioc_pool_configs, zfs_secpolicy_none, NO_NAME, B_FALSE },
2897 { zfs_ioc_pool_stats, zfs_secpolicy_read, POOL_NAME, B_FALSE },
2898 { zfs_ioc_pool_tryimport, zfs_secpolicy_config, NO_NAME, B_FALSE },
2899 { zfs_ioc_pool_scrub, zfs_secpolicy_config, POOL_NAME, B_TRUE },
2900 { zfs_ioc_pool_freeze, zfs_secpolicy_config, NO_NAME, B_FALSE },
2901 { zfs_ioc_pool_upgrade, zfs_secpolicy_config, POOL_NAME, B_TRUE },
2902 { zfs_ioc_pool_get_history, zfs_secpolicy_config, POOL_NAME, B_FALSE },
2903 { zfs_ioc_vdev_add, zfs_secpolicy_config, POOL_NAME, B_TRUE },
2904 { zfs_ioc_vdev_remove, zfs_secpolicy_config, POOL_NAME, B_TRUE },
2905 { zfs_ioc_vdev_set_state, zfs_secpolicy_config, POOL_NAME, B_TRUE },
2906 { zfs_ioc_vdev_attach, zfs_secpolicy_config, POOL_NAME, B_TRUE },
2907 { zfs_ioc_vdev_detach, zfs_secpolicy_config, POOL_NAME, B_TRUE },
2908 { zfs_ioc_vdev_setpath, zfs_secpolicy_config, POOL_NAME, B_FALSE },
2909 { zfs_ioc_objset_stats, zfs_secpolicy_read, DATASET_NAME, B_FALSE },
2910 { zfs_ioc_objset_zplprops, zfs_secpolicy_read, DATASET_NAME, B_FALSE },
2911 { zfs_ioc_dataset_list_next, zfs_secpolicy_read,
2912 DATASET_NAME, B_FALSE },
2913 { zfs_ioc_snapshot_list_next, zfs_secpolicy_read,
2914 DATASET_NAME, B_FALSE },
2915 { zfs_ioc_set_prop, zfs_secpolicy_none, DATASET_NAME, B_TRUE },
2916 { zfs_ioc_create_minor, zfs_secpolicy_minor, DATASET_NAME, B_FALSE },
2917 { zfs_ioc_remove_minor, zfs_secpolicy_minor, DATASET_NAME, B_FALSE },
2918 { zfs_ioc_create, zfs_secpolicy_create, DATASET_NAME, B_TRUE },
2919 { zfs_ioc_destroy, zfs_secpolicy_destroy, DATASET_NAME, B_TRUE },
2920 { zfs_ioc_rollback, zfs_secpolicy_rollback, DATASET_NAME, B_TRUE },
2921 { zfs_ioc_rename, zfs_secpolicy_rename, DATASET_NAME, B_TRUE },
2922 { zfs_ioc_recv, zfs_secpolicy_receive, DATASET_NAME, B_TRUE },
2923 { zfs_ioc_send, zfs_secpolicy_send, DATASET_NAME, B_TRUE },
2924 { zfs_ioc_inject_fault, zfs_secpolicy_inject, NO_NAME, B_FALSE },
2925 { zfs_ioc_clear_fault, zfs_secpolicy_inject, NO_NAME, B_FALSE },
2926 { zfs_ioc_inject_list_next, zfs_secpolicy_inject, NO_NAME, B_FALSE },
2927 { zfs_ioc_error_log, zfs_secpolicy_inject, POOL_NAME, B_FALSE },
2928 { zfs_ioc_clear, zfs_secpolicy_config, POOL_NAME, B_TRUE },
2929 { zfs_ioc_promote, zfs_secpolicy_promote, DATASET_NAME, B_TRUE },
2930 { zfs_ioc_destroy_snaps, zfs_secpolicy_destroy, DATASET_NAME, B_TRUE },
2931 { zfs_ioc_snapshot, zfs_secpolicy_snapshot, DATASET_NAME, B_TRUE },
2932 { zfs_ioc_dsobj_to_dsname, zfs_secpolicy_config, POOL_NAME, B_FALSE },
2933 { zfs_ioc_obj_to_path, zfs_secpolicy_config, NO_NAME, B_FALSE },
2934 { zfs_ioc_pool_set_props, zfs_secpolicy_config, POOL_NAME, B_TRUE },
2935 { zfs_ioc_pool_get_props, zfs_secpolicy_read, POOL_NAME, B_FALSE },
2936 { zfs_ioc_set_fsacl, zfs_secpolicy_fsacl, DATASET_NAME, B_TRUE },
2937 { zfs_ioc_get_fsacl, zfs_secpolicy_read, DATASET_NAME, B_FALSE },
2938 { zfs_ioc_iscsi_perm_check, zfs_secpolicy_iscsi,
2939 DATASET_NAME, B_FALSE },
2940 { zfs_ioc_share, zfs_secpolicy_share, DATASET_NAME, B_FALSE },
2941 { zfs_ioc_inherit_prop, zfs_secpolicy_inherit, DATASET_NAME, B_TRUE },
2945 zfsdev_ioctl(dev_t dev, int cmd, intptr_t arg, int flag, cred_t *cr, int *rvalp)
2951 if (getminor(dev) != 0)
2952 return (zvol_ioctl(dev, cmd, arg, flag, cr, rvalp));
2954 vec = cmd - ZFS_IOC;
2955 ASSERT3U(getmajor(dev), ==, ddi_driver_major(zfs_dip));
2957 if (vec >= sizeof (zfs_ioc_vec) / sizeof (zfs_ioc_vec[0]))
2960 zc = kmem_zalloc(sizeof (zfs_cmd_t), KM_SLEEP);
2962 error = xcopyin((void *)arg, zc, sizeof (zfs_cmd_t));
2965 error = zfs_ioc_vec[vec].zvec_secpolicy(zc, cr);
2968 * Ensure that all pool/dataset names are valid before we pass down to
2972 zc->zc_name[sizeof (zc->zc_name) - 1] = '\0';
2973 switch (zfs_ioc_vec[vec].zvec_namecheck) {
2975 if (pool_namecheck(zc->zc_name, NULL, NULL) != 0)
2980 if (dataset_namecheck(zc->zc_name, NULL, NULL) != 0)
2990 error = zfs_ioc_vec[vec].zvec_func(zc);
2992 rc = xcopyout(zc, (void *)arg, sizeof (zfs_cmd_t));
2995 if (zfs_ioc_vec[vec].zvec_his_log == B_TRUE)
2996 zfs_log_history(zc);
2999 kmem_free(zc, sizeof (zfs_cmd_t));
3004 zfs_attach(dev_info_t *dip, ddi_attach_cmd_t cmd)
3006 if (cmd != DDI_ATTACH)
3007 return (DDI_FAILURE);
3009 if (ddi_create_minor_node(dip, "zfs", S_IFCHR, 0,
3010 DDI_PSEUDO, 0) == DDI_FAILURE)
3011 return (DDI_FAILURE);
3015 ddi_report_dev(dip);
3017 return (DDI_SUCCESS);
3021 zfs_detach(dev_info_t *dip, ddi_detach_cmd_t cmd)
3023 if (spa_busy() || zfs_busy() || zvol_busy())
3024 return (DDI_FAILURE);
3026 if (cmd != DDI_DETACH)
3027 return (DDI_FAILURE);
3031 ddi_prop_remove_all(dip);
3032 ddi_remove_minor_node(dip, NULL);
3034 return (DDI_SUCCESS);
3039 zfs_info(dev_info_t *dip, ddi_info_cmd_t infocmd, void *arg, void **result)
3042 case DDI_INFO_DEVT2DEVINFO:
3044 return (DDI_SUCCESS);
3046 case DDI_INFO_DEVT2INSTANCE:
3047 *result = (void *)0;
3048 return (DDI_SUCCESS);
3051 return (DDI_FAILURE);
3055 * OK, so this is a little weird.
3057 * /dev/zfs is the control node, i.e. minor 0.
3058 * /dev/zvol/[r]dsk/pool/dataset are the zvols, minor > 0.
3060 * /dev/zfs has basically nothing to do except serve up ioctls,
3061 * so most of the standard driver entry points are in zvol.c.
3063 static struct cb_ops zfs_cb_ops = {
3064 zvol_open, /* open */
3065 zvol_close, /* close */
3066 zvol_strategy, /* strategy */
3068 zvol_dump, /* dump */
3069 zvol_read, /* read */
3070 zvol_write, /* write */
3071 zfsdev_ioctl, /* ioctl */
3075 nochpoll, /* poll */
3076 ddi_prop_op, /* prop_op */
3077 NULL, /* streamtab */
3078 D_NEW | D_MP | D_64BIT, /* Driver compatibility flag */
3079 CB_REV, /* version */
3080 nodev, /* async read */
3081 nodev, /* async write */
3084 static struct dev_ops zfs_dev_ops = {
3085 DEVO_REV, /* version */
3087 zfs_info, /* info */
3088 nulldev, /* identify */
3089 nulldev, /* probe */
3090 zfs_attach, /* attach */
3091 zfs_detach, /* detach */
3093 &zfs_cb_ops, /* driver operations */
3094 NULL, /* no bus operations */
3096 ddi_quiesce_not_needed, /* quiesce */
3099 static struct modldrv zfs_modldrv = {
3105 static struct modlinkage modlinkage = {
3107 (void *)&zfs_modlfs,
3108 (void *)&zfs_modldrv,
3113 uint_t zfs_fsyncer_key;
3114 extern uint_t rrw_tsd_key;
3121 spa_init(FREAD | FWRITE);
3125 if ((error = mod_install(&modlinkage)) != 0) {
3132 tsd_create(&zfs_fsyncer_key, NULL);
3133 tsd_create(&rrw_tsd_key, NULL);
3135 error = ldi_ident_from_mod(&modlinkage, &zfs_li);
3137 mutex_init(&zfs_share_lock, NULL, MUTEX_DEFAULT, NULL);
3147 if (spa_busy() || zfs_busy() || zvol_busy() || zio_injection_enabled)
3150 if ((error = mod_remove(&modlinkage)) != 0)
3156 if (zfs_nfsshare_inited)
3157 (void) ddi_modclose(nfs_mod);
3158 if (zfs_smbshare_inited)
3159 (void) ddi_modclose(smbsrv_mod);
3160 if (zfs_nfsshare_inited || zfs_smbshare_inited)
3161 (void) ddi_modclose(sharefs_mod);
3163 tsd_destroy(&zfs_fsyncer_key);
3164 ldi_ident_release(zfs_li);
3166 mutex_destroy(&zfs_share_lock);
3172 _info(struct modinfo *modinfop)
3174 return (mod_info(&modlinkage, modinfop));