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 (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
23 * Portions Copyright 2011 Martin Matuska
24 * Portions Copyright 2012 Pawel Jakub Dawidek <pawel@dawidek.net>
25 * Copyright (c) 2012, Joyent, Inc. All rights reserved.
28 #include <sys/types.h>
29 #include <sys/param.h>
30 #include <sys/errno.h>
33 #include <sys/modctl.h>
38 #include <sys/cmn_err.h>
40 #include <sys/zfs_ioctl.h>
41 #include <sys/zfs_vfsops.h>
42 #include <sys/zfs_znode.h>
45 #include <sys/spa_impl.h>
47 #include <sys/priv_impl.h>
49 #include <sys/dsl_dir.h>
50 #include <sys/dsl_dataset.h>
51 #include <sys/dsl_prop.h>
52 #include <sys/dsl_deleg.h>
53 #include <sys/dmu_objset.h>
55 #include <sys/sunddi.h>
56 #include <sys/sunldi.h>
57 #include <sys/policy.h>
59 #include <sys/nvpair.h>
60 #include <sys/pathname.h>
61 #include <sys/mount.h>
63 #include <sys/fs/zfs.h>
64 #include <sys/zfs_ctldir.h>
65 #include <sys/zfs_dir.h>
66 #include <sys/zfs_onexit.h>
68 #include <sys/dsl_scan.h>
69 #include <sharefs/share.h>
70 #include <sys/dmu_objset.h>
71 #include <sys/fm/util.h>
73 #include <linux/miscdevice.h>
75 #include "zfs_namecheck.h"
77 #include "zfs_deleg.h"
78 #include "zfs_comutil.h"
80 kmutex_t zfsdev_state_lock;
81 list_t zfsdev_state_list;
83 extern void zfs_init(void);
84 extern void zfs_fini(void);
86 typedef int zfs_ioc_func_t(zfs_cmd_t *);
87 typedef int zfs_secpolicy_func_t(zfs_cmd_t *, cred_t *);
93 } zfs_ioc_namecheck_t;
96 POOL_CHECK_NONE = 1 << 0,
97 POOL_CHECK_SUSPENDED = 1 << 1,
98 POOL_CHECK_READONLY = 1 << 2
99 } zfs_ioc_poolcheck_t;
101 typedef struct zfs_ioc_vec {
102 zfs_ioc_func_t *zvec_func;
103 zfs_secpolicy_func_t *zvec_secpolicy;
104 zfs_ioc_namecheck_t zvec_namecheck;
105 boolean_t zvec_his_log;
106 zfs_ioc_poolcheck_t zvec_pool_check;
109 /* This array is indexed by zfs_userquota_prop_t */
110 static const char *userquota_perms[] = {
111 ZFS_DELEG_PERM_USERUSED,
112 ZFS_DELEG_PERM_USERQUOTA,
113 ZFS_DELEG_PERM_GROUPUSED,
114 ZFS_DELEG_PERM_GROUPQUOTA,
117 static int zfs_ioc_userspace_upgrade(zfs_cmd_t *zc);
118 static int zfs_check_settable(const char *name, nvpair_t *property,
120 static int zfs_check_clearable(char *dataset, nvlist_t *props,
122 static int zfs_fill_zplprops_root(uint64_t, nvlist_t *, nvlist_t *,
124 int zfs_set_prop_nvlist(const char *, zprop_source_t, nvlist_t *, nvlist_t **);
127 history_str_free(char *buf)
129 kmem_free(buf, HIS_MAX_RECORD_LEN);
133 history_str_get(zfs_cmd_t *zc)
137 if (zc->zc_history == 0)
140 buf = kmem_alloc(HIS_MAX_RECORD_LEN, KM_SLEEP | KM_NODEBUG);
141 if (copyinstr((void *)(uintptr_t)zc->zc_history,
142 buf, HIS_MAX_RECORD_LEN, NULL) != 0) {
143 history_str_free(buf);
147 buf[HIS_MAX_RECORD_LEN -1] = '\0';
153 * Check to see if the named dataset is currently defined as bootable
156 zfs_is_bootfs(const char *name)
160 if (dmu_objset_hold(name, FTAG, &os) == 0) {
162 ret = (dmu_objset_id(os) == spa_bootfs(dmu_objset_spa(os)));
163 dmu_objset_rele(os, FTAG);
170 * zfs_earlier_version
172 * Return non-zero if the spa version is less than requested version.
175 zfs_earlier_version(const char *name, int version)
179 if (spa_open(name, &spa, FTAG) == 0) {
180 if (spa_version(spa) < version) {
181 spa_close(spa, FTAG);
184 spa_close(spa, FTAG);
190 * zpl_earlier_version
192 * Return TRUE if the ZPL version is less than requested version.
195 zpl_earlier_version(const char *name, int version)
198 boolean_t rc = B_TRUE;
200 if (dmu_objset_hold(name, FTAG, &os) == 0) {
203 if (dmu_objset_type(os) != DMU_OST_ZFS) {
204 dmu_objset_rele(os, FTAG);
207 /* XXX reading from non-owned objset */
208 if (zfs_get_zplprop(os, ZFS_PROP_VERSION, &zplversion) == 0)
209 rc = zplversion < version;
210 dmu_objset_rele(os, FTAG);
216 zfs_log_history(zfs_cmd_t *zc)
221 if ((buf = history_str_get(zc)) == NULL)
224 if (spa_open(zc->zc_name, &spa, FTAG) == 0) {
225 if (spa_version(spa) >= SPA_VERSION_ZPOOL_HISTORY)
226 (void) spa_history_log(spa, buf, LOG_CMD_NORMAL);
227 spa_close(spa, FTAG);
229 history_str_free(buf);
233 * Policy for top-level read operations (list pools). Requires no privileges,
234 * and can be used in the local zone, as there is no associated dataset.
238 zfs_secpolicy_none(zfs_cmd_t *zc, cred_t *cr)
244 * Policy for dataset read operations (list children, get statistics). Requires
245 * no privileges, but must be visible in the local zone.
249 zfs_secpolicy_read(zfs_cmd_t *zc, cred_t *cr)
251 if (INGLOBALZONE(curproc) ||
252 zone_dataset_visible(zc->zc_name, NULL))
259 zfs_dozonecheck_impl(const char *dataset, uint64_t zoned, cred_t *cr)
264 * The dataset must be visible by this zone -- check this first
265 * so they don't see EPERM on something they shouldn't know about.
267 if (!INGLOBALZONE(curproc) &&
268 !zone_dataset_visible(dataset, &writable))
271 if (INGLOBALZONE(curproc)) {
273 * If the fs is zoned, only root can access it from the
276 if (secpolicy_zfs(cr) && zoned)
280 * If we are in a local zone, the 'zoned' property must be set.
285 /* must be writable by this zone */
293 zfs_dozonecheck(const char *dataset, cred_t *cr)
297 if (dsl_prop_get_integer(dataset, "zoned", &zoned, NULL))
300 return (zfs_dozonecheck_impl(dataset, zoned, cr));
304 zfs_dozonecheck_ds(const char *dataset, dsl_dataset_t *ds, cred_t *cr)
308 rw_enter(&ds->ds_dir->dd_pool->dp_config_rwlock, RW_READER);
309 if (dsl_prop_get_ds(ds, "zoned", 8, 1, &zoned, NULL)) {
310 rw_exit(&ds->ds_dir->dd_pool->dp_config_rwlock);
313 rw_exit(&ds->ds_dir->dd_pool->dp_config_rwlock);
315 return (zfs_dozonecheck_impl(dataset, zoned, cr));
319 zfs_secpolicy_write_perms(const char *name, const char *perm, cred_t *cr)
323 error = zfs_dozonecheck(name, cr);
325 error = secpolicy_zfs(cr);
327 error = dsl_deleg_access(name, perm, cr);
333 zfs_secpolicy_write_perms_ds(const char *name, dsl_dataset_t *ds,
334 const char *perm, cred_t *cr)
338 error = zfs_dozonecheck_ds(name, ds, cr);
340 error = secpolicy_zfs(cr);
342 error = dsl_deleg_access_impl(ds, perm, cr);
348 * Policy for setting the security label property.
350 * Returns 0 for success, non-zero for access and other errors.
353 zfs_set_slabel_policy(const char *name, char *strval, cred_t *cr)
356 char ds_hexsl[MAXNAMELEN];
357 bslabel_t ds_sl, new_sl;
358 boolean_t new_default = FALSE;
360 int needed_priv = -1;
363 /* First get the existing dataset label. */
364 error = dsl_prop_get(name, zfs_prop_to_name(ZFS_PROP_MLSLABEL),
365 1, sizeof (ds_hexsl), &ds_hexsl, NULL);
369 if (strcasecmp(strval, ZFS_MLSLABEL_DEFAULT) == 0)
372 /* The label must be translatable */
373 if (!new_default && (hexstr_to_label(strval, &new_sl) != 0))
377 * In a non-global zone, disallow attempts to set a label that
378 * doesn't match that of the zone; otherwise no other checks
381 if (!INGLOBALZONE(curproc)) {
382 if (new_default || !blequal(&new_sl, CR_SL(CRED())))
388 * For global-zone datasets (i.e., those whose zoned property is
389 * "off", verify that the specified new label is valid for the
392 if (dsl_prop_get_integer(name,
393 zfs_prop_to_name(ZFS_PROP_ZONED), &zoned, NULL))
396 if (zfs_check_global_label(name, strval) != 0)
401 * If the existing dataset label is nondefault, check if the
402 * dataset is mounted (label cannot be changed while mounted).
403 * Get the zfs_sb_t; if there isn't one, then the dataset isn't
404 * mounted (or isn't a dataset, doesn't exist, ...).
406 if (strcasecmp(ds_hexsl, ZFS_MLSLABEL_DEFAULT) != 0) {
408 static char *setsl_tag = "setsl_tag";
411 * Try to own the dataset; abort if there is any error,
412 * (e.g., already mounted, in use, or other error).
414 error = dmu_objset_own(name, DMU_OST_ZFS, B_TRUE,
419 dmu_objset_disown(os, setsl_tag);
422 needed_priv = PRIV_FILE_DOWNGRADE_SL;
426 if (hexstr_to_label(strval, &new_sl) != 0)
429 if (blstrictdom(&ds_sl, &new_sl))
430 needed_priv = PRIV_FILE_DOWNGRADE_SL;
431 else if (blstrictdom(&new_sl, &ds_sl))
432 needed_priv = PRIV_FILE_UPGRADE_SL;
434 /* dataset currently has a default label */
436 needed_priv = PRIV_FILE_UPGRADE_SL;
440 if (needed_priv != -1)
441 return (PRIV_POLICY(cr, needed_priv, B_FALSE, EPERM, NULL));
445 #endif /* HAVE_MLSLABEL */
449 zfs_secpolicy_setprop(const char *dsname, zfs_prop_t prop, nvpair_t *propval,
455 * Check permissions for special properties.
462 * Disallow setting of 'zoned' from within a local zone.
464 if (!INGLOBALZONE(curproc))
469 if (!INGLOBALZONE(curproc)) {
471 char setpoint[MAXNAMELEN];
473 * Unprivileged users are allowed to modify the
474 * quota on things *under* (ie. contained by)
475 * the thing they own.
477 if (dsl_prop_get_integer(dsname, "zoned", &zoned,
480 if (!zoned || strlen(dsname) <= strlen(setpoint))
485 case ZFS_PROP_MLSLABEL:
486 if (!is_system_labeled())
489 if (nvpair_value_string(propval, &strval) == 0) {
492 err = zfs_set_slabel_policy(dsname, strval, CRED());
499 return (zfs_secpolicy_write_perms(dsname, zfs_prop_to_name(prop), cr));
503 zfs_secpolicy_fsacl(zfs_cmd_t *zc, cred_t *cr)
507 error = zfs_dozonecheck(zc->zc_name, cr);
512 * permission to set permissions will be evaluated later in
513 * dsl_deleg_can_allow()
519 zfs_secpolicy_rollback(zfs_cmd_t *zc, cred_t *cr)
521 return (zfs_secpolicy_write_perms(zc->zc_name,
522 ZFS_DELEG_PERM_ROLLBACK, cr));
526 zfs_secpolicy_send(zfs_cmd_t *zc, cred_t *cr)
535 * Generate the current snapshot name from the given objsetid, then
536 * use that name for the secpolicy/zone checks.
538 cp = strchr(zc->zc_name, '@');
541 error = spa_open(zc->zc_name, &spa, FTAG);
545 dp = spa_get_dsl(spa);
546 rw_enter(&dp->dp_config_rwlock, RW_READER);
547 error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &ds);
548 rw_exit(&dp->dp_config_rwlock);
549 spa_close(spa, FTAG);
553 dsl_dataset_name(ds, zc->zc_name);
555 error = zfs_secpolicy_write_perms_ds(zc->zc_name, ds,
556 ZFS_DELEG_PERM_SEND, cr);
557 dsl_dataset_rele(ds, FTAG);
562 #ifdef HAVE_SMB_SHARE
564 zfs_secpolicy_deleg_share(zfs_cmd_t *zc, cred_t *cr)
569 if ((error = lookupname(zc->zc_value, UIO_SYSSPACE,
570 NO_FOLLOW, NULL, &vp)) != 0)
573 /* Now make sure mntpnt and dataset are ZFS */
575 if (vp->v_vfsp->vfs_fstype != zfsfstype ||
576 (strcmp((char *)refstr_value(vp->v_vfsp->vfs_resource),
577 zc->zc_name) != 0)) {
583 return (dsl_deleg_access(zc->zc_name,
584 ZFS_DELEG_PERM_SHARE, cr));
586 #endif /* HAVE_SMB_SHARE */
589 zfs_secpolicy_share(zfs_cmd_t *zc, cred_t *cr)
591 #ifdef HAVE_SMB_SHARE
592 if (!INGLOBALZONE(curproc))
595 if (secpolicy_nfs(cr) == 0) {
598 return (zfs_secpolicy_deleg_share(zc, cr));
602 #endif /* HAVE_SMB_SHARE */
606 zfs_secpolicy_smb_acl(zfs_cmd_t *zc, cred_t *cr)
608 #ifdef HAVE_SMB_SHARE
609 if (!INGLOBALZONE(curproc))
612 if (secpolicy_smb(cr) == 0) {
615 return (zfs_secpolicy_deleg_share(zc, cr));
619 #endif /* HAVE_SMB_SHARE */
623 zfs_get_parent(const char *datasetname, char *parent, int parentsize)
628 * Remove the @bla or /bla from the end of the name to get the parent.
630 (void) strncpy(parent, datasetname, parentsize);
631 cp = strrchr(parent, '@');
635 cp = strrchr(parent, '/');
645 zfs_secpolicy_destroy_perms(const char *name, cred_t *cr)
649 if ((error = zfs_secpolicy_write_perms(name,
650 ZFS_DELEG_PERM_MOUNT, cr)) != 0)
653 return (zfs_secpolicy_write_perms(name, ZFS_DELEG_PERM_DESTROY, cr));
657 zfs_secpolicy_destroy(zfs_cmd_t *zc, cred_t *cr)
659 return (zfs_secpolicy_destroy_perms(zc->zc_name, cr));
663 * Destroying snapshots with delegated permissions requires
664 * descendent mount and destroy permissions.
665 * Reassemble the full filesystem@snap name so dsl_deleg_access()
666 * can do the correct permission check.
668 * Since this routine is used when doing a recursive destroy of snapshots
669 * and destroying snapshots requires descendent permissions, a successfull
670 * check of the top level snapshot applies to snapshots of all descendent
673 * The target snapshot may not exist when doing a recursive destroy.
674 * In this case fallback to permissions of the parent dataset.
677 zfs_secpolicy_destroy_snaps(zfs_cmd_t *zc, cred_t *cr)
682 dsname = kmem_asprintf("%s@%s", zc->zc_name, zc->zc_value);
684 error = zfs_secpolicy_destroy_perms(dsname, cr);
686 error = zfs_secpolicy_destroy_perms(zc->zc_name, cr);
693 zfs_secpolicy_rename_perms(const char *from, const char *to, cred_t *cr)
695 char parentname[MAXNAMELEN];
698 if ((error = zfs_secpolicy_write_perms(from,
699 ZFS_DELEG_PERM_RENAME, cr)) != 0)
702 if ((error = zfs_secpolicy_write_perms(from,
703 ZFS_DELEG_PERM_MOUNT, cr)) != 0)
706 if ((error = zfs_get_parent(to, parentname,
707 sizeof (parentname))) != 0)
710 if ((error = zfs_secpolicy_write_perms(parentname,
711 ZFS_DELEG_PERM_CREATE, cr)) != 0)
714 if ((error = zfs_secpolicy_write_perms(parentname,
715 ZFS_DELEG_PERM_MOUNT, cr)) != 0)
722 zfs_secpolicy_rename(zfs_cmd_t *zc, cred_t *cr)
724 return (zfs_secpolicy_rename_perms(zc->zc_name, zc->zc_value, cr));
728 zfs_secpolicy_promote(zfs_cmd_t *zc, cred_t *cr)
730 char parentname[MAXNAMELEN];
734 error = zfs_secpolicy_write_perms(zc->zc_name,
735 ZFS_DELEG_PERM_PROMOTE, cr);
739 error = dmu_objset_hold(zc->zc_name, FTAG, &clone);
742 dsl_dataset_t *pclone = NULL;
744 dd = clone->os_dsl_dataset->ds_dir;
746 rw_enter(&dd->dd_pool->dp_config_rwlock, RW_READER);
747 error = dsl_dataset_hold_obj(dd->dd_pool,
748 dd->dd_phys->dd_origin_obj, FTAG, &pclone);
749 rw_exit(&dd->dd_pool->dp_config_rwlock);
751 dmu_objset_rele(clone, FTAG);
755 error = zfs_secpolicy_write_perms(zc->zc_name,
756 ZFS_DELEG_PERM_MOUNT, cr);
758 dsl_dataset_name(pclone, parentname);
759 dmu_objset_rele(clone, FTAG);
760 dsl_dataset_rele(pclone, FTAG);
762 error = zfs_secpolicy_write_perms(parentname,
763 ZFS_DELEG_PERM_PROMOTE, cr);
769 zfs_secpolicy_receive(zfs_cmd_t *zc, cred_t *cr)
773 if ((error = zfs_secpolicy_write_perms(zc->zc_name,
774 ZFS_DELEG_PERM_RECEIVE, cr)) != 0)
777 if ((error = zfs_secpolicy_write_perms(zc->zc_name,
778 ZFS_DELEG_PERM_MOUNT, cr)) != 0)
781 return (zfs_secpolicy_write_perms(zc->zc_name,
782 ZFS_DELEG_PERM_CREATE, cr));
786 zfs_secpolicy_snapshot_perms(const char *name, cred_t *cr)
788 return (zfs_secpolicy_write_perms(name,
789 ZFS_DELEG_PERM_SNAPSHOT, cr));
793 zfs_secpolicy_snapshot(zfs_cmd_t *zc, cred_t *cr)
796 return (zfs_secpolicy_snapshot_perms(zc->zc_name, cr));
800 zfs_secpolicy_create(zfs_cmd_t *zc, cred_t *cr)
802 char parentname[MAXNAMELEN];
805 if ((error = zfs_get_parent(zc->zc_name, parentname,
806 sizeof (parentname))) != 0)
809 if (zc->zc_value[0] != '\0') {
810 if ((error = zfs_secpolicy_write_perms(zc->zc_value,
811 ZFS_DELEG_PERM_CLONE, cr)) != 0)
815 if ((error = zfs_secpolicy_write_perms(parentname,
816 ZFS_DELEG_PERM_CREATE, cr)) != 0)
819 error = zfs_secpolicy_write_perms(parentname,
820 ZFS_DELEG_PERM_MOUNT, cr);
826 * Policy for pool operations - create/destroy pools, add vdevs, etc. Requires
827 * SYS_CONFIG privilege, which is not available in a local zone.
831 zfs_secpolicy_config(zfs_cmd_t *zc, cred_t *cr)
833 if (secpolicy_sys_config(cr, B_FALSE) != 0)
840 * Policy for object to name lookups.
844 zfs_secpolicy_diff(zfs_cmd_t *zc, cred_t *cr)
848 if ((error = secpolicy_sys_config(cr, B_FALSE)) == 0)
851 error = zfs_secpolicy_write_perms(zc->zc_name, ZFS_DELEG_PERM_DIFF, cr);
856 * Policy for fault injection. Requires all privileges.
860 zfs_secpolicy_inject(zfs_cmd_t *zc, cred_t *cr)
862 return (secpolicy_zinject(cr));
866 zfs_secpolicy_inherit(zfs_cmd_t *zc, cred_t *cr)
868 zfs_prop_t prop = zfs_name_to_prop(zc->zc_value);
870 if (prop == ZPROP_INVAL) {
871 if (!zfs_prop_user(zc->zc_value))
873 return (zfs_secpolicy_write_perms(zc->zc_name,
874 ZFS_DELEG_PERM_USERPROP, cr));
876 return (zfs_secpolicy_setprop(zc->zc_name, prop,
882 zfs_secpolicy_userspace_one(zfs_cmd_t *zc, cred_t *cr)
884 int err = zfs_secpolicy_read(zc, cr);
888 if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS)
891 if (zc->zc_value[0] == 0) {
893 * They are asking about a posix uid/gid. If it's
894 * themself, allow it.
896 if (zc->zc_objset_type == ZFS_PROP_USERUSED ||
897 zc->zc_objset_type == ZFS_PROP_USERQUOTA) {
898 if (zc->zc_guid == crgetuid(cr))
901 if (groupmember(zc->zc_guid, cr))
906 return (zfs_secpolicy_write_perms(zc->zc_name,
907 userquota_perms[zc->zc_objset_type], cr));
911 zfs_secpolicy_userspace_many(zfs_cmd_t *zc, cred_t *cr)
913 int err = zfs_secpolicy_read(zc, cr);
917 if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS)
920 return (zfs_secpolicy_write_perms(zc->zc_name,
921 userquota_perms[zc->zc_objset_type], cr));
925 zfs_secpolicy_userspace_upgrade(zfs_cmd_t *zc, cred_t *cr)
927 return (zfs_secpolicy_setprop(zc->zc_name, ZFS_PROP_VERSION,
932 zfs_secpolicy_hold(zfs_cmd_t *zc, cred_t *cr)
934 return (zfs_secpolicy_write_perms(zc->zc_name,
935 ZFS_DELEG_PERM_HOLD, cr));
939 zfs_secpolicy_release(zfs_cmd_t *zc, cred_t *cr)
941 return (zfs_secpolicy_write_perms(zc->zc_name,
942 ZFS_DELEG_PERM_RELEASE, cr));
946 * Policy for allowing temporary snapshots to be taken or released
949 zfs_secpolicy_tmp_snapshot(zfs_cmd_t *zc, cred_t *cr)
952 * A temporary snapshot is the same as a snapshot,
953 * hold, destroy and release all rolled into one.
954 * Delegated diff alone is sufficient that we allow this.
958 if ((error = zfs_secpolicy_write_perms(zc->zc_name,
959 ZFS_DELEG_PERM_DIFF, cr)) == 0)
962 error = zfs_secpolicy_snapshot(zc, cr);
964 error = zfs_secpolicy_hold(zc, cr);
966 error = zfs_secpolicy_release(zc, cr);
968 error = zfs_secpolicy_destroy(zc, cr);
973 * Returns the nvlist as specified by the user in the zfs_cmd_t.
976 get_nvlist(uint64_t nvl, uint64_t size, int iflag, nvlist_t **nvp)
980 nvlist_t *list = NULL;
983 * Read in and unpack the user-supplied nvlist.
988 packed = kmem_alloc(size, KM_SLEEP | KM_NODEBUG);
990 if ((error = ddi_copyin((void *)(uintptr_t)nvl, packed, size,
992 kmem_free(packed, size);
996 if ((error = nvlist_unpack(packed, size, &list, 0)) != 0) {
997 kmem_free(packed, size);
1001 kmem_free(packed, size);
1008 fit_error_list(zfs_cmd_t *zc, nvlist_t **errors)
1012 VERIFY(nvlist_size(*errors, &size, NV_ENCODE_NATIVE) == 0);
1014 if (size > zc->zc_nvlist_dst_size) {
1015 nvpair_t *more_errors;
1018 if (zc->zc_nvlist_dst_size < 1024)
1021 VERIFY(nvlist_add_int32(*errors, ZPROP_N_MORE_ERRORS, 0) == 0);
1022 more_errors = nvlist_prev_nvpair(*errors, NULL);
1025 nvpair_t *pair = nvlist_prev_nvpair(*errors,
1027 VERIFY(nvlist_remove_nvpair(*errors, pair) == 0);
1029 VERIFY(nvlist_size(*errors, &size,
1030 NV_ENCODE_NATIVE) == 0);
1031 } while (size > zc->zc_nvlist_dst_size);
1033 VERIFY(nvlist_remove_nvpair(*errors, more_errors) == 0);
1034 VERIFY(nvlist_add_int32(*errors, ZPROP_N_MORE_ERRORS, n) == 0);
1035 ASSERT(nvlist_size(*errors, &size, NV_ENCODE_NATIVE) == 0);
1036 ASSERT(size <= zc->zc_nvlist_dst_size);
1043 put_nvlist(zfs_cmd_t *zc, nvlist_t *nvl)
1045 char *packed = NULL;
1049 VERIFY(nvlist_size(nvl, &size, NV_ENCODE_NATIVE) == 0);
1051 if (size > zc->zc_nvlist_dst_size) {
1054 packed = kmem_alloc(size, KM_SLEEP | KM_NODEBUG);
1055 VERIFY(nvlist_pack(nvl, &packed, &size, NV_ENCODE_NATIVE,
1057 if (ddi_copyout(packed, (void *)(uintptr_t)zc->zc_nvlist_dst,
1058 size, zc->zc_iflags) != 0)
1060 kmem_free(packed, size);
1063 zc->zc_nvlist_dst_size = size;
1068 get_zfs_sb(const char *dsname, zfs_sb_t **zsbp)
1073 error = dmu_objset_hold(dsname, FTAG, &os);
1076 if (dmu_objset_type(os) != DMU_OST_ZFS) {
1077 dmu_objset_rele(os, FTAG);
1081 mutex_enter(&os->os_user_ptr_lock);
1082 *zsbp = dmu_objset_get_user(os);
1083 if (*zsbp && (*zsbp)->z_sb) {
1084 atomic_inc(&((*zsbp)->z_sb->s_active));
1088 mutex_exit(&os->os_user_ptr_lock);
1089 dmu_objset_rele(os, FTAG);
1094 * Find a zfs_sb_t for a mounted filesystem, or create our own, in which
1095 * case its z_sb will be NULL, and it will be opened as the owner.
1098 zfs_sb_hold(const char *name, void *tag, zfs_sb_t **zsbp, boolean_t writer)
1102 if (get_zfs_sb(name, zsbp) != 0)
1103 error = zfs_sb_create(name, zsbp);
1105 rrw_enter(&(*zsbp)->z_teardown_lock, (writer) ? RW_WRITER :
1107 if ((*zsbp)->z_unmounted) {
1109 * XXX we could probably try again, since the unmounting
1110 * thread should be just about to disassociate the
1111 * objset from the zfsvfs.
1113 rrw_exit(&(*zsbp)->z_teardown_lock, tag);
1121 zfs_sb_rele(zfs_sb_t *zsb, void *tag)
1123 rrw_exit(&zsb->z_teardown_lock, tag);
1126 deactivate_super(zsb->z_sb);
1128 dmu_objset_disown(zsb->z_os, zsb);
1134 zfs_ioc_pool_create(zfs_cmd_t *zc)
1137 nvlist_t *config, *props = NULL;
1138 nvlist_t *rootprops = NULL;
1139 nvlist_t *zplprops = NULL;
1142 if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
1143 zc->zc_iflags, &config)))
1146 if (zc->zc_nvlist_src_size != 0 && (error =
1147 get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
1148 zc->zc_iflags, &props))) {
1149 nvlist_free(config);
1154 nvlist_t *nvl = NULL;
1155 uint64_t version = SPA_VERSION;
1157 (void) nvlist_lookup_uint64(props,
1158 zpool_prop_to_name(ZPOOL_PROP_VERSION), &version);
1159 if (version < SPA_VERSION_INITIAL || version > SPA_VERSION) {
1161 goto pool_props_bad;
1163 (void) nvlist_lookup_nvlist(props, ZPOOL_ROOTFS_PROPS, &nvl);
1165 error = nvlist_dup(nvl, &rootprops, KM_SLEEP);
1167 nvlist_free(config);
1171 (void) nvlist_remove_all(props, ZPOOL_ROOTFS_PROPS);
1173 VERIFY(nvlist_alloc(&zplprops, NV_UNIQUE_NAME, KM_SLEEP) == 0);
1174 error = zfs_fill_zplprops_root(version, rootprops,
1177 goto pool_props_bad;
1180 buf = history_str_get(zc);
1182 error = spa_create(zc->zc_name, config, props, buf, zplprops);
1185 * Set the remaining root properties
1187 if (!error && (error = zfs_set_prop_nvlist(zc->zc_name,
1188 ZPROP_SRC_LOCAL, rootprops, NULL)) != 0)
1189 (void) spa_destroy(zc->zc_name);
1192 history_str_free(buf);
1195 nvlist_free(rootprops);
1196 nvlist_free(zplprops);
1197 nvlist_free(config);
1204 zfs_ioc_pool_destroy(zfs_cmd_t *zc)
1207 zfs_log_history(zc);
1208 error = spa_destroy(zc->zc_name);
1210 zvol_remove_minors(zc->zc_name);
1215 zfs_ioc_pool_import(zfs_cmd_t *zc)
1217 nvlist_t *config, *props = NULL;
1221 if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
1222 zc->zc_iflags, &config)) != 0)
1225 if (zc->zc_nvlist_src_size != 0 && (error =
1226 get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
1227 zc->zc_iflags, &props))) {
1228 nvlist_free(config);
1232 if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &guid) != 0 ||
1233 guid != zc->zc_guid)
1236 error = spa_import(zc->zc_name, config, props, zc->zc_cookie);
1238 if (zc->zc_nvlist_dst != 0) {
1241 if ((err = put_nvlist(zc, config)) != 0)
1246 zvol_create_minors(zc->zc_name);
1248 nvlist_free(config);
1257 zfs_ioc_pool_export(zfs_cmd_t *zc)
1260 boolean_t force = (boolean_t)zc->zc_cookie;
1261 boolean_t hardforce = (boolean_t)zc->zc_guid;
1263 zfs_log_history(zc);
1264 error = spa_export(zc->zc_name, NULL, force, hardforce);
1266 zvol_remove_minors(zc->zc_name);
1271 zfs_ioc_pool_configs(zfs_cmd_t *zc)
1276 if ((configs = spa_all_configs(&zc->zc_cookie)) == NULL)
1279 error = put_nvlist(zc, configs);
1281 nvlist_free(configs);
1287 zfs_ioc_pool_stats(zfs_cmd_t *zc)
1293 error = spa_get_stats(zc->zc_name, &config, zc->zc_value,
1294 sizeof (zc->zc_value));
1296 if (config != NULL) {
1297 ret = put_nvlist(zc, config);
1298 nvlist_free(config);
1301 * The config may be present even if 'error' is non-zero.
1302 * In this case we return success, and preserve the real errno
1305 zc->zc_cookie = error;
1314 * Try to import the given pool, returning pool stats as appropriate so that
1315 * user land knows which devices are available and overall pool health.
1318 zfs_ioc_pool_tryimport(zfs_cmd_t *zc)
1320 nvlist_t *tryconfig, *config;
1323 if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
1324 zc->zc_iflags, &tryconfig)) != 0)
1327 config = spa_tryimport(tryconfig);
1329 nvlist_free(tryconfig);
1334 error = put_nvlist(zc, config);
1335 nvlist_free(config);
1342 * zc_name name of the pool
1343 * zc_cookie scan func (pool_scan_func_t)
1346 zfs_ioc_pool_scan(zfs_cmd_t *zc)
1351 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
1354 if (zc->zc_cookie == POOL_SCAN_NONE)
1355 error = spa_scan_stop(spa);
1357 error = spa_scan(spa, zc->zc_cookie);
1359 spa_close(spa, FTAG);
1365 zfs_ioc_pool_freeze(zfs_cmd_t *zc)
1370 error = spa_open(zc->zc_name, &spa, FTAG);
1373 spa_close(spa, FTAG);
1379 zfs_ioc_pool_upgrade(zfs_cmd_t *zc)
1384 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
1387 if (zc->zc_cookie < spa_version(spa) || zc->zc_cookie > SPA_VERSION) {
1388 spa_close(spa, FTAG);
1392 spa_upgrade(spa, zc->zc_cookie);
1393 spa_close(spa, FTAG);
1399 zfs_ioc_pool_get_history(zfs_cmd_t *zc)
1406 if ((size = zc->zc_history_len) == 0)
1409 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
1412 if (spa_version(spa) < SPA_VERSION_ZPOOL_HISTORY) {
1413 spa_close(spa, FTAG);
1417 hist_buf = vmem_alloc(size, KM_SLEEP);
1418 if ((error = spa_history_get(spa, &zc->zc_history_offset,
1419 &zc->zc_history_len, hist_buf)) == 0) {
1420 error = ddi_copyout(hist_buf,
1421 (void *)(uintptr_t)zc->zc_history,
1422 zc->zc_history_len, zc->zc_iflags);
1425 spa_close(spa, FTAG);
1426 vmem_free(hist_buf, size);
1431 zfs_ioc_dsobj_to_dsname(zfs_cmd_t *zc)
1435 if ((error = dsl_dsobj_to_dsname(zc->zc_name,zc->zc_obj,zc->zc_value)))
1443 * zc_name name of filesystem
1444 * zc_obj object to find
1447 * zc_value name of object
1450 zfs_ioc_obj_to_path(zfs_cmd_t *zc)
1455 /* XXX reading from objset not owned */
1456 if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os)) != 0)
1458 if (dmu_objset_type(os) != DMU_OST_ZFS) {
1459 dmu_objset_rele(os, FTAG);
1462 error = zfs_obj_to_path(os, zc->zc_obj, zc->zc_value,
1463 sizeof (zc->zc_value));
1464 dmu_objset_rele(os, FTAG);
1471 * zc_name name of filesystem
1472 * zc_obj object to find
1475 * zc_stat stats on object
1476 * zc_value path to object
1479 zfs_ioc_obj_to_stats(zfs_cmd_t *zc)
1484 /* XXX reading from objset not owned */
1485 if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os)) != 0)
1487 if (dmu_objset_type(os) != DMU_OST_ZFS) {
1488 dmu_objset_rele(os, FTAG);
1491 error = zfs_obj_to_stats(os, zc->zc_obj, &zc->zc_stat, zc->zc_value,
1492 sizeof (zc->zc_value));
1493 dmu_objset_rele(os, FTAG);
1499 zfs_ioc_vdev_add(zfs_cmd_t *zc)
1503 nvlist_t *config, **l2cache, **spares;
1504 uint_t nl2cache = 0, nspares = 0;
1506 error = spa_open(zc->zc_name, &spa, FTAG);
1510 error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
1511 zc->zc_iflags, &config);
1512 (void) nvlist_lookup_nvlist_array(config, ZPOOL_CONFIG_L2CACHE,
1513 &l2cache, &nl2cache);
1515 (void) nvlist_lookup_nvlist_array(config, ZPOOL_CONFIG_SPARES,
1519 * A root pool with concatenated devices is not supported.
1520 * Thus, can not add a device to a root pool.
1522 * Intent log device can not be added to a rootpool because
1523 * during mountroot, zil is replayed, a seperated log device
1524 * can not be accessed during the mountroot time.
1526 * l2cache and spare devices are ok to be added to a rootpool.
1528 if (spa_bootfs(spa) != 0 && nl2cache == 0 && nspares == 0) {
1529 nvlist_free(config);
1530 spa_close(spa, FTAG);
1535 error = spa_vdev_add(spa, config);
1536 nvlist_free(config);
1538 spa_close(spa, FTAG);
1544 * zc_name name of the pool
1545 * zc_nvlist_conf nvlist of devices to remove
1546 * zc_cookie to stop the remove?
1549 zfs_ioc_vdev_remove(zfs_cmd_t *zc)
1554 error = spa_open(zc->zc_name, &spa, FTAG);
1557 error = spa_vdev_remove(spa, zc->zc_guid, B_FALSE);
1558 spa_close(spa, FTAG);
1563 zfs_ioc_vdev_set_state(zfs_cmd_t *zc)
1567 vdev_state_t newstate = VDEV_STATE_UNKNOWN;
1569 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
1571 switch (zc->zc_cookie) {
1572 case VDEV_STATE_ONLINE:
1573 error = vdev_online(spa, zc->zc_guid, zc->zc_obj, &newstate);
1576 case VDEV_STATE_OFFLINE:
1577 error = vdev_offline(spa, zc->zc_guid, zc->zc_obj);
1580 case VDEV_STATE_FAULTED:
1581 if (zc->zc_obj != VDEV_AUX_ERR_EXCEEDED &&
1582 zc->zc_obj != VDEV_AUX_EXTERNAL)
1583 zc->zc_obj = VDEV_AUX_ERR_EXCEEDED;
1585 error = vdev_fault(spa, zc->zc_guid, zc->zc_obj);
1588 case VDEV_STATE_DEGRADED:
1589 if (zc->zc_obj != VDEV_AUX_ERR_EXCEEDED &&
1590 zc->zc_obj != VDEV_AUX_EXTERNAL)
1591 zc->zc_obj = VDEV_AUX_ERR_EXCEEDED;
1593 error = vdev_degrade(spa, zc->zc_guid, zc->zc_obj);
1599 zc->zc_cookie = newstate;
1600 spa_close(spa, FTAG);
1605 zfs_ioc_vdev_attach(zfs_cmd_t *zc)
1608 int replacing = zc->zc_cookie;
1612 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
1615 if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
1616 zc->zc_iflags, &config)) == 0) {
1617 error = spa_vdev_attach(spa, zc->zc_guid, config, replacing);
1618 nvlist_free(config);
1621 spa_close(spa, FTAG);
1626 zfs_ioc_vdev_detach(zfs_cmd_t *zc)
1631 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
1634 error = spa_vdev_detach(spa, zc->zc_guid, 0, B_FALSE);
1636 spa_close(spa, FTAG);
1641 zfs_ioc_vdev_split(zfs_cmd_t *zc)
1644 nvlist_t *config, *props = NULL;
1646 boolean_t exp = !!(zc->zc_cookie & ZPOOL_EXPORT_AFTER_SPLIT);
1648 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
1651 if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
1652 zc->zc_iflags, &config))) {
1653 spa_close(spa, FTAG);
1657 if (zc->zc_nvlist_src_size != 0 && (error =
1658 get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
1659 zc->zc_iflags, &props))) {
1660 spa_close(spa, FTAG);
1661 nvlist_free(config);
1665 error = spa_vdev_split_mirror(spa, zc->zc_string, config, props, exp);
1667 spa_close(spa, FTAG);
1669 nvlist_free(config);
1676 zfs_ioc_vdev_setpath(zfs_cmd_t *zc)
1679 char *path = zc->zc_value;
1680 uint64_t guid = zc->zc_guid;
1683 error = spa_open(zc->zc_name, &spa, FTAG);
1687 error = spa_vdev_setpath(spa, guid, path);
1688 spa_close(spa, FTAG);
1693 zfs_ioc_vdev_setfru(zfs_cmd_t *zc)
1696 char *fru = zc->zc_value;
1697 uint64_t guid = zc->zc_guid;
1700 error = spa_open(zc->zc_name, &spa, FTAG);
1704 error = spa_vdev_setfru(spa, guid, fru);
1705 spa_close(spa, FTAG);
1710 zfs_ioc_objset_stats_impl(zfs_cmd_t *zc, objset_t *os)
1715 dmu_objset_fast_stat(os, &zc->zc_objset_stats);
1717 if (zc->zc_nvlist_dst != 0 &&
1718 (error = dsl_prop_get_all(os, &nv)) == 0) {
1719 dmu_objset_stats(os, nv);
1721 * NB: zvol_get_stats() will read the objset contents,
1722 * which we aren't supposed to do with a
1723 * DS_MODE_USER hold, because it could be
1724 * inconsistent. So this is a bit of a workaround...
1725 * XXX reading with out owning
1727 if (!zc->zc_objset_stats.dds_inconsistent) {
1728 if (dmu_objset_type(os) == DMU_OST_ZVOL)
1729 error = zvol_get_stats(os, nv);
1732 error = put_nvlist(zc, nv);
1741 * zc_name name of filesystem
1742 * zc_nvlist_dst_size size of buffer for property nvlist
1745 * zc_objset_stats stats
1746 * zc_nvlist_dst property nvlist
1747 * zc_nvlist_dst_size size of property nvlist
1750 zfs_ioc_objset_stats(zfs_cmd_t *zc)
1752 objset_t *os = NULL;
1755 if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os)))
1758 error = zfs_ioc_objset_stats_impl(zc, os);
1760 dmu_objset_rele(os, FTAG);
1767 * zc_name name of filesystem
1768 * zc_nvlist_dst_size size of buffer for property nvlist
1771 * zc_nvlist_dst received property nvlist
1772 * zc_nvlist_dst_size size of received property nvlist
1774 * Gets received properties (distinct from local properties on or after
1775 * SPA_VERSION_RECVD_PROPS) for callers who want to differentiate received from
1776 * local property values.
1779 zfs_ioc_objset_recvd_props(zfs_cmd_t *zc)
1781 objset_t *os = NULL;
1785 if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os)))
1789 * Without this check, we would return local property values if the
1790 * caller has not already received properties on or after
1791 * SPA_VERSION_RECVD_PROPS.
1793 if (!dsl_prop_get_hasrecvd(os)) {
1794 dmu_objset_rele(os, FTAG);
1798 if (zc->zc_nvlist_dst != 0 &&
1799 (error = dsl_prop_get_received(os, &nv)) == 0) {
1800 error = put_nvlist(zc, nv);
1804 dmu_objset_rele(os, FTAG);
1809 nvl_add_zplprop(objset_t *os, nvlist_t *props, zfs_prop_t prop)
1815 * zfs_get_zplprop() will either find a value or give us
1816 * the default value (if there is one).
1818 if ((error = zfs_get_zplprop(os, prop, &value)) != 0)
1820 VERIFY(nvlist_add_uint64(props, zfs_prop_to_name(prop), value) == 0);
1826 * zc_name name of filesystem
1827 * zc_nvlist_dst_size size of buffer for zpl property nvlist
1830 * zc_nvlist_dst zpl property nvlist
1831 * zc_nvlist_dst_size size of zpl property nvlist
1834 zfs_ioc_objset_zplprops(zfs_cmd_t *zc)
1839 /* XXX reading without owning */
1840 if ((err = dmu_objset_hold(zc->zc_name, FTAG, &os)))
1843 dmu_objset_fast_stat(os, &zc->zc_objset_stats);
1846 * NB: nvl_add_zplprop() will read the objset contents,
1847 * which we aren't supposed to do with a DS_MODE_USER
1848 * hold, because it could be inconsistent.
1850 if (zc->zc_nvlist_dst != 0 &&
1851 !zc->zc_objset_stats.dds_inconsistent &&
1852 dmu_objset_type(os) == DMU_OST_ZFS) {
1855 VERIFY(nvlist_alloc(&nv, NV_UNIQUE_NAME, KM_SLEEP) == 0);
1856 if ((err = nvl_add_zplprop(os, nv, ZFS_PROP_VERSION)) == 0 &&
1857 (err = nvl_add_zplprop(os, nv, ZFS_PROP_NORMALIZE)) == 0 &&
1858 (err = nvl_add_zplprop(os, nv, ZFS_PROP_UTF8ONLY)) == 0 &&
1859 (err = nvl_add_zplprop(os, nv, ZFS_PROP_CASE)) == 0)
1860 err = put_nvlist(zc, nv);
1865 dmu_objset_rele(os, FTAG);
1870 dataset_name_hidden(const char *name)
1873 * Skip over datasets that are not visible in this zone,
1874 * internal datasets (which have a $ in their name), and
1875 * temporary datasets (which have a % in their name).
1877 if (strchr(name, '$') != NULL)
1879 if (strchr(name, '%') != NULL)
1881 if (!INGLOBALZONE(curproc) && !zone_dataset_visible(name, NULL))
1888 * zc_name name of filesystem
1889 * zc_cookie zap cursor
1890 * zc_nvlist_dst_size size of buffer for property nvlist
1893 * zc_name name of next filesystem
1894 * zc_cookie zap cursor
1895 * zc_objset_stats stats
1896 * zc_nvlist_dst property nvlist
1897 * zc_nvlist_dst_size size of property nvlist
1900 zfs_ioc_dataset_list_next(zfs_cmd_t *zc)
1905 size_t orig_len = strlen(zc->zc_name);
1908 if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os))) {
1909 if (error == ENOENT)
1914 p = strrchr(zc->zc_name, '/');
1915 if (p == NULL || p[1] != '\0')
1916 (void) strlcat(zc->zc_name, "/", sizeof (zc->zc_name));
1917 p = zc->zc_name + strlen(zc->zc_name);
1920 * Pre-fetch the datasets. dmu_objset_prefetch() always returns 0
1921 * but is not declared void because its called by dmu_objset_find().
1923 if (zc->zc_cookie == 0) {
1924 uint64_t cookie = 0;
1925 int len = sizeof (zc->zc_name) - (p - zc->zc_name);
1927 while (dmu_dir_list_next(os, len, p, NULL, &cookie) == 0) {
1928 if (!dataset_name_hidden(zc->zc_name))
1929 (void) dmu_objset_prefetch(zc->zc_name, NULL);
1934 error = dmu_dir_list_next(os,
1935 sizeof (zc->zc_name) - (p - zc->zc_name), p,
1936 NULL, &zc->zc_cookie);
1937 if (error == ENOENT)
1939 } while (error == 0 && dataset_name_hidden(zc->zc_name) &&
1940 !(zc->zc_iflags & FKIOCTL));
1941 dmu_objset_rele(os, FTAG);
1944 * If it's an internal dataset (ie. with a '$' in its name),
1945 * don't try to get stats for it, otherwise we'll return ENOENT.
1947 if (error == 0 && strchr(zc->zc_name, '$') == NULL) {
1948 error = zfs_ioc_objset_stats(zc); /* fill in the stats */
1949 if (error == ENOENT) {
1950 /* We lost a race with destroy, get the next one. */
1951 zc->zc_name[orig_len] = '\0';
1960 * zc_name name of filesystem
1961 * zc_cookie zap cursor
1962 * zc_nvlist_dst_size size of buffer for property nvlist
1965 * zc_name name of next snapshot
1966 * zc_objset_stats stats
1967 * zc_nvlist_dst property nvlist
1968 * zc_nvlist_dst_size size of property nvlist
1971 zfs_ioc_snapshot_list_next(zfs_cmd_t *zc)
1977 if (zc->zc_cookie == 0 && !zc->zc_simple)
1978 (void) dmu_objset_find(zc->zc_name, dmu_objset_prefetch,
1979 NULL, DS_FIND_SNAPSHOTS);
1981 error = dmu_objset_hold(zc->zc_name, FTAG, &os);
1983 return (error == ENOENT ? ESRCH : error);
1986 * A dataset name of maximum length cannot have any snapshots,
1987 * so exit immediately.
1989 if (strlcat(zc->zc_name, "@", sizeof (zc->zc_name)) >= MAXNAMELEN) {
1990 dmu_objset_rele(os, FTAG);
1994 error = dmu_snapshot_list_next(os,
1995 sizeof (zc->zc_name) - strlen(zc->zc_name),
1996 zc->zc_name + strlen(zc->zc_name), &zc->zc_obj, &zc->zc_cookie,
1999 if (error == 0 && !zc->zc_simple) {
2001 dsl_pool_t *dp = os->os_dsl_dataset->ds_dir->dd_pool;
2004 * Since we probably don't have a hold on this snapshot,
2005 * it's possible that the objsetid could have been destroyed
2006 * and reused for a new objset. It's OK if this happens during
2007 * a zfs send operation, since the new createtxg will be
2008 * beyond the range we're interested in.
2010 rw_enter(&dp->dp_config_rwlock, RW_READER);
2011 error = dsl_dataset_hold_obj(dp, zc->zc_obj, FTAG, &ds);
2012 rw_exit(&dp->dp_config_rwlock);
2014 if (error == ENOENT) {
2015 /* Racing with destroy, get the next one. */
2016 *strchr(zc->zc_name, '@') = '\0';
2017 dmu_objset_rele(os, FTAG);
2023 error = dmu_objset_from_ds(ds, &ossnap);
2025 error = zfs_ioc_objset_stats_impl(zc, ossnap);
2026 dsl_dataset_rele(ds, FTAG);
2028 } else if (error == ENOENT) {
2032 dmu_objset_rele(os, FTAG);
2033 /* if we failed, undo the @ that we tacked on to zc_name */
2035 *strchr(zc->zc_name, '@') = '\0';
2040 zfs_prop_set_userquota(const char *dsname, nvpair_t *pair)
2042 const char *propname = nvpair_name(pair);
2044 unsigned int vallen;
2047 zfs_userquota_prop_t type;
2053 if (nvpair_type(pair) == DATA_TYPE_NVLIST) {
2055 VERIFY(nvpair_value_nvlist(pair, &attrs) == 0);
2056 if (nvlist_lookup_nvpair(attrs, ZPROP_VALUE,
2062 * A correctly constructed propname is encoded as
2063 * userquota@<rid>-<domain>.
2065 if ((dash = strchr(propname, '-')) == NULL ||
2066 nvpair_value_uint64_array(pair, &valary, &vallen) != 0 ||
2075 err = zfs_sb_hold(dsname, FTAG, &zsb, B_FALSE);
2077 err = zfs_set_userquota(zsb, type, domain, rid, quota);
2078 zfs_sb_rele(zsb, FTAG);
2085 * If the named property is one that has a special function to set its value,
2086 * return 0 on success and a positive error code on failure; otherwise if it is
2087 * not one of the special properties handled by this function, return -1.
2089 * XXX: It would be better for callers of the property interface if we handled
2090 * these special cases in dsl_prop.c (in the dsl layer).
2093 zfs_prop_set_special(const char *dsname, zprop_source_t source,
2096 const char *propname = nvpair_name(pair);
2097 zfs_prop_t prop = zfs_name_to_prop(propname);
2101 if (prop == ZPROP_INVAL) {
2102 if (zfs_prop_userquota(propname))
2103 return (zfs_prop_set_userquota(dsname, pair));
2107 if (nvpair_type(pair) == DATA_TYPE_NVLIST) {
2109 VERIFY(nvpair_value_nvlist(pair, &attrs) == 0);
2110 VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE,
2114 if (zfs_prop_get_type(prop) == PROP_TYPE_STRING)
2117 VERIFY(0 == nvpair_value_uint64(pair, &intval));
2120 case ZFS_PROP_QUOTA:
2121 err = dsl_dir_set_quota(dsname, source, intval);
2123 case ZFS_PROP_REFQUOTA:
2124 err = dsl_dataset_set_quota(dsname, source, intval);
2126 case ZFS_PROP_RESERVATION:
2127 err = dsl_dir_set_reservation(dsname, source, intval);
2129 case ZFS_PROP_REFRESERVATION:
2130 err = dsl_dataset_set_reservation(dsname, source, intval);
2132 case ZFS_PROP_VOLSIZE:
2133 err = zvol_set_volsize(dsname, intval);
2135 case ZFS_PROP_VERSION:
2139 if ((err = zfs_sb_hold(dsname, FTAG, &zsb, B_TRUE)) != 0)
2142 err = zfs_set_version(zsb, intval);
2143 zfs_sb_rele(zsb, FTAG);
2145 if (err == 0 && intval >= ZPL_VERSION_USERSPACE) {
2148 zc = kmem_zalloc(sizeof (zfs_cmd_t),
2149 KM_SLEEP | KM_NODEBUG);
2150 (void) strcpy(zc->zc_name, dsname);
2151 (void) zfs_ioc_userspace_upgrade(zc);
2152 kmem_free(zc, sizeof (zfs_cmd_t));
2165 * This function is best effort. If it fails to set any of the given properties,
2166 * it continues to set as many as it can and returns the first error
2167 * encountered. If the caller provides a non-NULL errlist, it also gives the
2168 * complete list of names of all the properties it failed to set along with the
2169 * corresponding error numbers. The caller is responsible for freeing the
2172 * If every property is set successfully, zero is returned and the list pointed
2173 * at by errlist is NULL.
2176 zfs_set_prop_nvlist(const char *dsname, zprop_source_t source, nvlist_t *nvl,
2184 nvlist_t *genericnvl;
2188 VERIFY(nvlist_alloc(&genericnvl, NV_UNIQUE_NAME, KM_SLEEP) == 0);
2189 VERIFY(nvlist_alloc(&errors, NV_UNIQUE_NAME, KM_SLEEP) == 0);
2190 VERIFY(nvlist_alloc(&retrynvl, NV_UNIQUE_NAME, KM_SLEEP) == 0);
2194 while ((pair = nvlist_next_nvpair(nvl, pair)) != NULL) {
2195 const char *propname = nvpair_name(pair);
2196 zfs_prop_t prop = zfs_name_to_prop(propname);
2199 /* decode the property value */
2201 if (nvpair_type(pair) == DATA_TYPE_NVLIST) {
2203 VERIFY(nvpair_value_nvlist(pair, &attrs) == 0);
2204 if (nvlist_lookup_nvpair(attrs, ZPROP_VALUE,
2209 /* Validate value type */
2210 if (err == 0 && prop == ZPROP_INVAL) {
2211 if (zfs_prop_user(propname)) {
2212 if (nvpair_type(propval) != DATA_TYPE_STRING)
2214 } else if (zfs_prop_userquota(propname)) {
2215 if (nvpair_type(propval) !=
2216 DATA_TYPE_UINT64_ARRAY)
2219 } else if (err == 0) {
2220 if (nvpair_type(propval) == DATA_TYPE_STRING) {
2221 if (zfs_prop_get_type(prop) != PROP_TYPE_STRING)
2223 } else if (nvpair_type(propval) == DATA_TYPE_UINT64) {
2226 VERIFY(nvpair_value_uint64(propval,
2229 switch (zfs_prop_get_type(prop)) {
2230 case PROP_TYPE_NUMBER:
2232 case PROP_TYPE_STRING:
2235 case PROP_TYPE_INDEX:
2236 if (zfs_prop_index_to_string(prop,
2237 intval, &unused) != 0)
2242 "unknown property type");
2249 /* Validate permissions */
2251 err = zfs_check_settable(dsname, pair, CRED());
2254 err = zfs_prop_set_special(dsname, source, pair);
2257 * For better performance we build up a list of
2258 * properties to set in a single transaction.
2260 err = nvlist_add_nvpair(genericnvl, pair);
2261 } else if (err != 0 && nvl != retrynvl) {
2263 * This may be a spurious error caused by
2264 * receiving quota and reservation out of order.
2265 * Try again in a second pass.
2267 err = nvlist_add_nvpair(retrynvl, pair);
2272 VERIFY(nvlist_add_int32(errors, propname, err) == 0);
2275 if (nvl != retrynvl && !nvlist_empty(retrynvl)) {
2280 if (!nvlist_empty(genericnvl) &&
2281 dsl_props_set(dsname, source, genericnvl) != 0) {
2283 * If this fails, we still want to set as many properties as we
2284 * can, so try setting them individually.
2287 while ((pair = nvlist_next_nvpair(genericnvl, pair)) != NULL) {
2288 const char *propname = nvpair_name(pair);
2292 if (nvpair_type(pair) == DATA_TYPE_NVLIST) {
2294 VERIFY(nvpair_value_nvlist(pair, &attrs) == 0);
2295 VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE,
2299 if (nvpair_type(propval) == DATA_TYPE_STRING) {
2300 VERIFY(nvpair_value_string(propval,
2302 err = dsl_prop_set(dsname, propname, source, 1,
2303 strlen(strval) + 1, strval);
2305 VERIFY(nvpair_value_uint64(propval,
2307 err = dsl_prop_set(dsname, propname, source, 8,
2312 VERIFY(nvlist_add_int32(errors, propname,
2317 nvlist_free(genericnvl);
2318 nvlist_free(retrynvl);
2320 if ((pair = nvlist_next_nvpair(errors, NULL)) == NULL) {
2321 nvlist_free(errors);
2324 VERIFY(nvpair_value_int32(pair, &rv) == 0);
2327 if (errlist == NULL)
2328 nvlist_free(errors);
2336 * Check that all the properties are valid user properties.
2339 zfs_check_userprops(char *fsname, nvlist_t *nvl)
2341 nvpair_t *pair = NULL;
2344 while ((pair = nvlist_next_nvpair(nvl, pair)) != NULL) {
2345 const char *propname = nvpair_name(pair);
2348 if (!zfs_prop_user(propname) ||
2349 nvpair_type(pair) != DATA_TYPE_STRING)
2352 if ((error = zfs_secpolicy_write_perms(fsname,
2353 ZFS_DELEG_PERM_USERPROP, CRED())))
2356 if (strlen(propname) >= ZAP_MAXNAMELEN)
2357 return (ENAMETOOLONG);
2359 VERIFY(nvpair_value_string(pair, &valstr) == 0);
2360 if (strlen(valstr) >= ZAP_MAXVALUELEN)
2367 props_skip(nvlist_t *props, nvlist_t *skipped, nvlist_t **newprops)
2371 VERIFY(nvlist_alloc(newprops, NV_UNIQUE_NAME, KM_SLEEP) == 0);
2374 while ((pair = nvlist_next_nvpair(props, pair)) != NULL) {
2375 if (nvlist_exists(skipped, nvpair_name(pair)))
2378 VERIFY(nvlist_add_nvpair(*newprops, pair) == 0);
2383 clear_received_props(objset_t *os, const char *fs, nvlist_t *props,
2387 nvlist_t *cleared_props = NULL;
2388 props_skip(props, skipped, &cleared_props);
2389 if (!nvlist_empty(cleared_props)) {
2391 * Acts on local properties until the dataset has received
2392 * properties at least once on or after SPA_VERSION_RECVD_PROPS.
2394 zprop_source_t flags = (ZPROP_SRC_NONE |
2395 (dsl_prop_get_hasrecvd(os) ? ZPROP_SRC_RECEIVED : 0));
2396 err = zfs_set_prop_nvlist(fs, flags, cleared_props, NULL);
2398 nvlist_free(cleared_props);
2404 * zc_name name of filesystem
2405 * zc_value name of property to set
2406 * zc_nvlist_src{_size} nvlist of properties to apply
2407 * zc_cookie received properties flag
2410 * zc_nvlist_dst{_size} error for each unapplied received property
2413 zfs_ioc_set_prop(zfs_cmd_t *zc)
2416 boolean_t received = zc->zc_cookie;
2417 zprop_source_t source = (received ? ZPROP_SRC_RECEIVED :
2419 nvlist_t *errors = NULL;
2422 if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
2423 zc->zc_iflags, &nvl)) != 0)
2427 nvlist_t *origprops;
2430 if (dmu_objset_hold(zc->zc_name, FTAG, &os) == 0) {
2431 if (dsl_prop_get_received(os, &origprops) == 0) {
2432 (void) clear_received_props(os,
2433 zc->zc_name, origprops, nvl);
2434 nvlist_free(origprops);
2437 dsl_prop_set_hasrecvd(os);
2438 dmu_objset_rele(os, FTAG);
2442 error = zfs_set_prop_nvlist(zc->zc_name, source, nvl, &errors);
2444 if (zc->zc_nvlist_dst != 0 && errors != NULL) {
2445 (void) put_nvlist(zc, errors);
2448 nvlist_free(errors);
2455 * zc_name name of filesystem
2456 * zc_value name of property to inherit
2457 * zc_cookie revert to received value if TRUE
2462 zfs_ioc_inherit_prop(zfs_cmd_t *zc)
2464 const char *propname = zc->zc_value;
2465 zfs_prop_t prop = zfs_name_to_prop(propname);
2466 boolean_t received = zc->zc_cookie;
2467 zprop_source_t source = (received
2468 ? ZPROP_SRC_NONE /* revert to received value, if any */
2469 : ZPROP_SRC_INHERITED); /* explicitly inherit */
2478 * zfs_prop_set_special() expects properties in the form of an
2479 * nvpair with type info.
2481 if (prop == ZPROP_INVAL) {
2482 if (!zfs_prop_user(propname))
2485 type = PROP_TYPE_STRING;
2486 } else if (prop == ZFS_PROP_VOLSIZE ||
2487 prop == ZFS_PROP_VERSION) {
2490 type = zfs_prop_get_type(prop);
2493 VERIFY(nvlist_alloc(&dummy, NV_UNIQUE_NAME, KM_SLEEP) == 0);
2496 case PROP_TYPE_STRING:
2497 VERIFY(0 == nvlist_add_string(dummy, propname, ""));
2499 case PROP_TYPE_NUMBER:
2500 case PROP_TYPE_INDEX:
2501 VERIFY(0 == nvlist_add_uint64(dummy, propname, 0));
2508 pair = nvlist_next_nvpair(dummy, NULL);
2509 err = zfs_prop_set_special(zc->zc_name, source, pair);
2512 return (err); /* special property already handled */
2515 * Only check this in the non-received case. We want to allow
2516 * 'inherit -S' to revert non-inheritable properties like quota
2517 * and reservation to the received or default values even though
2518 * they are not considered inheritable.
2520 if (prop != ZPROP_INVAL && !zfs_prop_inheritable(prop))
2524 /* the property name has been validated by zfs_secpolicy_inherit() */
2525 return (dsl_prop_set(zc->zc_name, zc->zc_value, source, 0, 0, NULL));
2529 zfs_ioc_pool_set_props(zfs_cmd_t *zc)
2536 if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
2537 zc->zc_iflags, &props)))
2541 * If the only property is the configfile, then just do a spa_lookup()
2542 * to handle the faulted case.
2544 pair = nvlist_next_nvpair(props, NULL);
2545 if (pair != NULL && strcmp(nvpair_name(pair),
2546 zpool_prop_to_name(ZPOOL_PROP_CACHEFILE)) == 0 &&
2547 nvlist_next_nvpair(props, pair) == NULL) {
2548 mutex_enter(&spa_namespace_lock);
2549 if ((spa = spa_lookup(zc->zc_name)) != NULL) {
2550 spa_configfile_set(spa, props, B_FALSE);
2551 spa_config_sync(spa, B_FALSE, B_TRUE);
2553 mutex_exit(&spa_namespace_lock);
2560 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) {
2565 error = spa_prop_set(spa, props);
2568 spa_close(spa, FTAG);
2574 zfs_ioc_pool_get_props(zfs_cmd_t *zc)
2578 nvlist_t *nvp = NULL;
2580 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) {
2582 * If the pool is faulted, there may be properties we can still
2583 * get (such as altroot and cachefile), so attempt to get them
2586 mutex_enter(&spa_namespace_lock);
2587 if ((spa = spa_lookup(zc->zc_name)) != NULL)
2588 error = spa_prop_get(spa, &nvp);
2589 mutex_exit(&spa_namespace_lock);
2591 error = spa_prop_get(spa, &nvp);
2592 spa_close(spa, FTAG);
2595 if (error == 0 && zc->zc_nvlist_dst != 0)
2596 error = put_nvlist(zc, nvp);
2606 * zc_name name of volume
2611 zfs_ioc_create_minor(zfs_cmd_t *zc)
2613 return (zvol_create_minor(zc->zc_name));
2618 * zc_name name of volume
2623 zfs_ioc_remove_minor(zfs_cmd_t *zc)
2625 return (zvol_remove_minor(zc->zc_name));
2630 * zc_name name of filesystem
2631 * zc_nvlist_src{_size} nvlist of delegated permissions
2632 * zc_perm_action allow/unallow flag
2637 zfs_ioc_set_fsacl(zfs_cmd_t *zc)
2640 nvlist_t *fsaclnv = NULL;
2642 if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
2643 zc->zc_iflags, &fsaclnv)) != 0)
2647 * Verify nvlist is constructed correctly
2649 if ((error = zfs_deleg_verify_nvlist(fsaclnv)) != 0) {
2650 nvlist_free(fsaclnv);
2655 * If we don't have PRIV_SYS_MOUNT, then validate
2656 * that user is allowed to hand out each permission in
2660 error = secpolicy_zfs(CRED());
2662 if (zc->zc_perm_action == B_FALSE) {
2663 error = dsl_deleg_can_allow(zc->zc_name,
2666 error = dsl_deleg_can_unallow(zc->zc_name,
2672 error = dsl_deleg_set(zc->zc_name, fsaclnv, zc->zc_perm_action);
2674 nvlist_free(fsaclnv);
2680 * zc_name name of filesystem
2683 * zc_nvlist_src{_size} nvlist of delegated permissions
2686 zfs_ioc_get_fsacl(zfs_cmd_t *zc)
2691 if ((error = dsl_deleg_get(zc->zc_name, &nvp)) == 0) {
2692 error = put_nvlist(zc, nvp);
2701 zfs_create_cb(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx)
2703 zfs_creat_t *zct = arg;
2705 zfs_create_fs(os, cr, zct->zct_zplprops, tx);
2708 #define ZFS_PROP_UNDEFINED ((uint64_t)-1)
2712 * createprops list of properties requested by creator
2713 * default_zplver zpl version to use if unspecified in createprops
2714 * fuids_ok fuids allowed in this version of the spa?
2715 * os parent objset pointer (NULL if root fs)
2718 * zplprops values for the zplprops we attach to the master node object
2719 * is_ci true if requested file system will be purely case-insensitive
2721 * Determine the settings for utf8only, normalization and
2722 * casesensitivity. Specific values may have been requested by the
2723 * creator and/or we can inherit values from the parent dataset. If
2724 * the file system is of too early a vintage, a creator can not
2725 * request settings for these properties, even if the requested
2726 * setting is the default value. We don't actually want to create dsl
2727 * properties for these, so remove them from the source nvlist after
2731 zfs_fill_zplprops_impl(objset_t *os, uint64_t zplver,
2732 boolean_t fuids_ok, boolean_t sa_ok, nvlist_t *createprops,
2733 nvlist_t *zplprops, boolean_t *is_ci)
2735 uint64_t sense = ZFS_PROP_UNDEFINED;
2736 uint64_t norm = ZFS_PROP_UNDEFINED;
2737 uint64_t u8 = ZFS_PROP_UNDEFINED;
2740 ASSERT(zplprops != NULL);
2743 * Pull out creator prop choices, if any.
2746 (void) nvlist_lookup_uint64(createprops,
2747 zfs_prop_to_name(ZFS_PROP_VERSION), &zplver);
2748 (void) nvlist_lookup_uint64(createprops,
2749 zfs_prop_to_name(ZFS_PROP_NORMALIZE), &norm);
2750 (void) nvlist_remove_all(createprops,
2751 zfs_prop_to_name(ZFS_PROP_NORMALIZE));
2752 (void) nvlist_lookup_uint64(createprops,
2753 zfs_prop_to_name(ZFS_PROP_UTF8ONLY), &u8);
2754 (void) nvlist_remove_all(createprops,
2755 zfs_prop_to_name(ZFS_PROP_UTF8ONLY));
2756 (void) nvlist_lookup_uint64(createprops,
2757 zfs_prop_to_name(ZFS_PROP_CASE), &sense);
2758 (void) nvlist_remove_all(createprops,
2759 zfs_prop_to_name(ZFS_PROP_CASE));
2763 * If the zpl version requested is whacky or the file system
2764 * or pool is version is too "young" to support normalization
2765 * and the creator tried to set a value for one of the props,
2768 if ((zplver < ZPL_VERSION_INITIAL || zplver > ZPL_VERSION) ||
2769 (zplver >= ZPL_VERSION_FUID && !fuids_ok) ||
2770 (zplver >= ZPL_VERSION_SA && !sa_ok) ||
2771 (zplver < ZPL_VERSION_NORMALIZATION &&
2772 (norm != ZFS_PROP_UNDEFINED || u8 != ZFS_PROP_UNDEFINED ||
2773 sense != ZFS_PROP_UNDEFINED)))
2777 * Put the version in the zplprops
2779 VERIFY(nvlist_add_uint64(zplprops,
2780 zfs_prop_to_name(ZFS_PROP_VERSION), zplver) == 0);
2782 if (norm == ZFS_PROP_UNDEFINED &&
2783 (error = zfs_get_zplprop(os, ZFS_PROP_NORMALIZE, &norm)) != 0)
2785 VERIFY(nvlist_add_uint64(zplprops,
2786 zfs_prop_to_name(ZFS_PROP_NORMALIZE), norm) == 0);
2789 * If we're normalizing, names must always be valid UTF-8 strings.
2793 if (u8 == ZFS_PROP_UNDEFINED &&
2794 (error = zfs_get_zplprop(os, ZFS_PROP_UTF8ONLY, &u8)) != 0)
2796 VERIFY(nvlist_add_uint64(zplprops,
2797 zfs_prop_to_name(ZFS_PROP_UTF8ONLY), u8) == 0);
2799 if (sense == ZFS_PROP_UNDEFINED &&
2800 (error = zfs_get_zplprop(os, ZFS_PROP_CASE, &sense)) != 0)
2802 VERIFY(nvlist_add_uint64(zplprops,
2803 zfs_prop_to_name(ZFS_PROP_CASE), sense) == 0);
2806 *is_ci = (sense == ZFS_CASE_INSENSITIVE);
2812 zfs_fill_zplprops(const char *dataset, nvlist_t *createprops,
2813 nvlist_t *zplprops, boolean_t *is_ci)
2815 boolean_t fuids_ok, sa_ok;
2816 uint64_t zplver = ZPL_VERSION;
2817 objset_t *os = NULL;
2818 char parentname[MAXNAMELEN];
2824 (void) strlcpy(parentname, dataset, sizeof (parentname));
2825 cp = strrchr(parentname, '/');
2829 if ((error = spa_open(dataset, &spa, FTAG)) != 0)
2832 spa_vers = spa_version(spa);
2833 spa_close(spa, FTAG);
2835 zplver = zfs_zpl_version_map(spa_vers);
2836 fuids_ok = (zplver >= ZPL_VERSION_FUID);
2837 sa_ok = (zplver >= ZPL_VERSION_SA);
2840 * Open parent object set so we can inherit zplprop values.
2842 if ((error = dmu_objset_hold(parentname, FTAG, &os)) != 0)
2845 error = zfs_fill_zplprops_impl(os, zplver, fuids_ok, sa_ok, createprops,
2847 dmu_objset_rele(os, FTAG);
2852 zfs_fill_zplprops_root(uint64_t spa_vers, nvlist_t *createprops,
2853 nvlist_t *zplprops, boolean_t *is_ci)
2857 uint64_t zplver = ZPL_VERSION;
2860 zplver = zfs_zpl_version_map(spa_vers);
2861 fuids_ok = (zplver >= ZPL_VERSION_FUID);
2862 sa_ok = (zplver >= ZPL_VERSION_SA);
2864 error = zfs_fill_zplprops_impl(NULL, zplver, fuids_ok, sa_ok,
2865 createprops, zplprops, is_ci);
2871 * zc_objset_type type of objset to create (fs vs zvol)
2872 * zc_name name of new objset
2873 * zc_value name of snapshot to clone from (may be empty)
2874 * zc_nvlist_src{_size} nvlist of properties to apply
2879 zfs_ioc_create(zfs_cmd_t *zc)
2884 nvlist_t *nvprops = NULL;
2885 void (*cbfunc)(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx);
2886 dmu_objset_type_t type = zc->zc_objset_type;
2891 cbfunc = zfs_create_cb;
2895 cbfunc = zvol_create_cb;
2902 if (strchr(zc->zc_name, '@') ||
2903 strchr(zc->zc_name, '%'))
2906 if (zc->zc_nvlist_src != 0 &&
2907 (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
2908 zc->zc_iflags, &nvprops)) != 0)
2911 zct.zct_zplprops = NULL;
2912 zct.zct_props = nvprops;
2914 if (zc->zc_value[0] != '\0') {
2916 * We're creating a clone of an existing snapshot.
2918 zc->zc_value[sizeof (zc->zc_value) - 1] = '\0';
2919 if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0) {
2920 nvlist_free(nvprops);
2924 error = dmu_objset_hold(zc->zc_value, FTAG, &clone);
2926 nvlist_free(nvprops);
2930 error = dmu_objset_clone(zc->zc_name, dmu_objset_ds(clone), 0);
2931 dmu_objset_rele(clone, FTAG);
2933 nvlist_free(nvprops);
2937 boolean_t is_insensitive = B_FALSE;
2939 if (cbfunc == NULL) {
2940 nvlist_free(nvprops);
2944 if (type == DMU_OST_ZVOL) {
2945 uint64_t volsize, volblocksize;
2947 if (nvprops == NULL ||
2948 nvlist_lookup_uint64(nvprops,
2949 zfs_prop_to_name(ZFS_PROP_VOLSIZE),
2951 nvlist_free(nvprops);
2955 if ((error = nvlist_lookup_uint64(nvprops,
2956 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE),
2957 &volblocksize)) != 0 && error != ENOENT) {
2958 nvlist_free(nvprops);
2963 volblocksize = zfs_prop_default_numeric(
2964 ZFS_PROP_VOLBLOCKSIZE);
2966 if ((error = zvol_check_volblocksize(
2967 volblocksize)) != 0 ||
2968 (error = zvol_check_volsize(volsize,
2969 volblocksize)) != 0) {
2970 nvlist_free(nvprops);
2973 } else if (type == DMU_OST_ZFS) {
2977 * We have to have normalization and
2978 * case-folding flags correct when we do the
2979 * file system creation, so go figure them out
2982 VERIFY(nvlist_alloc(&zct.zct_zplprops,
2983 NV_UNIQUE_NAME, KM_SLEEP) == 0);
2984 error = zfs_fill_zplprops(zc->zc_name, nvprops,
2985 zct.zct_zplprops, &is_insensitive);
2987 nvlist_free(nvprops);
2988 nvlist_free(zct.zct_zplprops);
2992 error = dmu_objset_create(zc->zc_name, type,
2993 is_insensitive ? DS_FLAG_CI_DATASET : 0, cbfunc, &zct);
2994 nvlist_free(zct.zct_zplprops);
2998 * It would be nice to do this atomically.
3001 error = zfs_set_prop_nvlist(zc->zc_name, ZPROP_SRC_LOCAL,
3004 (void) dmu_objset_destroy(zc->zc_name, B_FALSE);
3006 nvlist_free(nvprops);
3012 * zc_name name of filesystem
3013 * zc_value short name of snapshot
3014 * zc_cookie recursive flag
3015 * zc_nvlist_src[_size] property list
3018 * zc_value short snapname (i.e. part after the '@')
3021 zfs_ioc_snapshot(zfs_cmd_t *zc)
3023 nvlist_t *nvprops = NULL;
3025 boolean_t recursive = zc->zc_cookie;
3027 if (snapshot_namecheck(zc->zc_value, NULL, NULL) != 0)
3030 if (zc->zc_nvlist_src != 0 &&
3031 (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
3032 zc->zc_iflags, &nvprops)) != 0)
3035 error = zfs_check_userprops(zc->zc_name, nvprops);
3039 if (!nvlist_empty(nvprops) &&
3040 zfs_earlier_version(zc->zc_name, SPA_VERSION_SNAP_PROPS)) {
3045 error = dmu_objset_snapshot(zc->zc_name, zc->zc_value, NULL,
3046 nvprops, recursive, B_FALSE, -1);
3049 nvlist_free(nvprops);
3055 * name dataset name, or when 'arg == NULL' the full snapshot name
3056 * arg short snapshot name (i.e. part after the '@')
3059 zfs_unmount_snap(const char *name, void *arg)
3061 zfs_sb_t *zsb = NULL;
3069 dsname = strdup(name);
3070 snapname = strdup(arg);
3072 ptr = strchr(name, '@');
3074 dsname = strdup(name);
3075 dsname[ptr - name] = '\0';
3076 snapname = strdup(ptr + 1);
3082 fullname = kmem_asprintf("%s@%s", dsname, snapname);
3084 error = zfs_sb_hold(dsname, FTAG, &zsb, B_FALSE);
3086 error = zfsctl_unmount_snapshot(zsb, fullname, MNT_FORCE);
3087 zfs_sb_rele(zsb, FTAG);
3089 /* Allow ENOENT for consistency with upstream */
3090 if (error == ENOENT)
3103 * zc_name name of filesystem
3104 * zc_value short name of snapshot
3105 * zc_defer_destroy mark for deferred destroy
3110 zfs_ioc_destroy_snaps(zfs_cmd_t *zc)
3114 if (snapshot_namecheck(zc->zc_value, NULL, NULL) != 0)
3116 err = dmu_objset_find(zc->zc_name,
3117 zfs_unmount_snap, zc->zc_value, DS_FIND_CHILDREN);
3120 return (dmu_snapshots_destroy(zc->zc_name, zc->zc_value,
3121 zc->zc_defer_destroy));
3126 * zc_name name of dataset to destroy
3127 * zc_objset_type type of objset
3128 * zc_defer_destroy mark for deferred destroy
3133 zfs_ioc_destroy(zfs_cmd_t *zc)
3136 if (strchr(zc->zc_name, '@') && zc->zc_objset_type == DMU_OST_ZFS) {
3137 err = zfs_unmount_snap(zc->zc_name, NULL);
3142 err = dmu_objset_destroy(zc->zc_name, zc->zc_defer_destroy);
3143 if (zc->zc_objset_type == DMU_OST_ZVOL && err == 0)
3144 (void) zvol_remove_minor(zc->zc_name);
3150 * zc_name name of dataset to rollback (to most recent snapshot)
3155 zfs_ioc_rollback(zfs_cmd_t *zc)
3157 dsl_dataset_t *ds, *clone;
3162 error = dsl_dataset_hold(zc->zc_name, FTAG, &ds);
3166 /* must not be a snapshot */
3167 if (dsl_dataset_is_snapshot(ds)) {
3168 dsl_dataset_rele(ds, FTAG);
3172 /* must have a most recent snapshot */
3173 if (ds->ds_phys->ds_prev_snap_txg < TXG_INITIAL) {
3174 dsl_dataset_rele(ds, FTAG);
3179 * Create clone of most recent snapshot.
3181 clone_name = kmem_asprintf("%s/%%rollback", zc->zc_name);
3182 error = dmu_objset_clone(clone_name, ds->ds_prev, DS_FLAG_INCONSISTENT);
3186 error = dsl_dataset_own(clone_name, B_TRUE, FTAG, &clone);
3193 if (get_zfs_sb(zc->zc_name, &zsb) == 0) {
3194 error = zfs_suspend_fs(zsb);
3198 if (dsl_dataset_tryown(ds, B_FALSE, FTAG)) {
3199 error = dsl_dataset_clone_swap(clone, ds,
3201 dsl_dataset_disown(ds, FTAG);
3206 resume_err = zfs_resume_fs(zsb, zc->zc_name);
3207 error = error ? error : resume_err;
3209 deactivate_super(zsb->z_sb);
3211 if (dsl_dataset_tryown(ds, B_FALSE, FTAG)) {
3212 error = dsl_dataset_clone_swap(clone, ds, B_TRUE);
3213 dsl_dataset_disown(ds, FTAG);
3221 * Destroy clone (which also closes it).
3223 (void) dsl_dataset_destroy(clone, FTAG, B_FALSE);
3226 strfree(clone_name);
3228 dsl_dataset_rele(ds, FTAG);
3234 * zc_name old name of dataset
3235 * zc_value new name of dataset
3236 * zc_cookie recursive flag (only valid for snapshots)
3241 zfs_ioc_rename(zfs_cmd_t *zc)
3243 boolean_t recursive = zc->zc_cookie & 1;
3246 zc->zc_value[sizeof (zc->zc_value) - 1] = '\0';
3247 if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 ||
3248 strchr(zc->zc_value, '%'))
3252 * Unmount snapshot unless we're doing a recursive rename,
3253 * in which case the dataset code figures out which snapshots
3256 if (!recursive && strchr(zc->zc_name, '@') != NULL &&
3257 zc->zc_objset_type == DMU_OST_ZFS) {
3258 err = zfs_unmount_snap(zc->zc_name, NULL);
3263 err = dmu_objset_rename(zc->zc_name, zc->zc_value, recursive);
3264 if ((err == 0) && (zc->zc_objset_type == DMU_OST_ZVOL)) {
3265 (void) zvol_remove_minor(zc->zc_name);
3266 (void) zvol_create_minor(zc->zc_value);
3273 zfs_check_settable(const char *dsname, nvpair_t *pair, cred_t *cr)
3275 const char *propname = nvpair_name(pair);
3276 boolean_t issnap = (strchr(dsname, '@') != NULL);
3277 zfs_prop_t prop = zfs_name_to_prop(propname);
3281 if (prop == ZPROP_INVAL) {
3282 if (zfs_prop_user(propname)) {
3283 if ((err = zfs_secpolicy_write_perms(dsname,
3284 ZFS_DELEG_PERM_USERPROP, cr)))
3289 if (!issnap && zfs_prop_userquota(propname)) {
3290 const char *perm = NULL;
3291 const char *uq_prefix =
3292 zfs_userquota_prop_prefixes[ZFS_PROP_USERQUOTA];
3293 const char *gq_prefix =
3294 zfs_userquota_prop_prefixes[ZFS_PROP_GROUPQUOTA];
3296 if (strncmp(propname, uq_prefix,
3297 strlen(uq_prefix)) == 0) {
3298 perm = ZFS_DELEG_PERM_USERQUOTA;
3299 } else if (strncmp(propname, gq_prefix,
3300 strlen(gq_prefix)) == 0) {
3301 perm = ZFS_DELEG_PERM_GROUPQUOTA;
3303 /* USERUSED and GROUPUSED are read-only */
3307 if ((err = zfs_secpolicy_write_perms(dsname, perm, cr)))
3318 if (nvpair_type(pair) == DATA_TYPE_NVLIST) {
3320 * dsl_prop_get_all_impl() returns properties in this
3324 VERIFY(nvpair_value_nvlist(pair, &attrs) == 0);
3325 VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE,
3330 * Check that this value is valid for this pool version
3333 case ZFS_PROP_COMPRESSION:
3335 * If the user specified gzip compression, make sure
3336 * the SPA supports it. We ignore any errors here since
3337 * we'll catch them later.
3339 if (nvpair_type(pair) == DATA_TYPE_UINT64 &&
3340 nvpair_value_uint64(pair, &intval) == 0) {
3341 if (intval >= ZIO_COMPRESS_GZIP_1 &&
3342 intval <= ZIO_COMPRESS_GZIP_9 &&
3343 zfs_earlier_version(dsname,
3344 SPA_VERSION_GZIP_COMPRESSION)) {
3348 if (intval == ZIO_COMPRESS_ZLE &&
3349 zfs_earlier_version(dsname,
3350 SPA_VERSION_ZLE_COMPRESSION))
3354 * If this is a bootable dataset then
3355 * verify that the compression algorithm
3356 * is supported for booting. We must return
3357 * something other than ENOTSUP since it
3358 * implies a downrev pool version.
3360 if (zfs_is_bootfs(dsname) &&
3361 !BOOTFS_COMPRESS_VALID(intval)) {
3367 case ZFS_PROP_COPIES:
3368 if (zfs_earlier_version(dsname, SPA_VERSION_DITTO_BLOCKS))
3372 case ZFS_PROP_DEDUP:
3373 if (zfs_earlier_version(dsname, SPA_VERSION_DEDUP))
3377 case ZFS_PROP_SHARESMB:
3378 if (zpl_earlier_version(dsname, ZPL_VERSION_FUID))
3382 case ZFS_PROP_ACLINHERIT:
3383 if (nvpair_type(pair) == DATA_TYPE_UINT64 &&
3384 nvpair_value_uint64(pair, &intval) == 0) {
3385 if (intval == ZFS_ACL_PASSTHROUGH_X &&
3386 zfs_earlier_version(dsname,
3387 SPA_VERSION_PASSTHROUGH_X))
3395 return (zfs_secpolicy_setprop(dsname, prop, pair, CRED()));
3399 * Removes properties from the given props list that fail permission checks
3400 * needed to clear them and to restore them in case of a receive error. For each
3401 * property, make sure we have both set and inherit permissions.
3403 * Returns the first error encountered if any permission checks fail. If the
3404 * caller provides a non-NULL errlist, it also gives the complete list of names
3405 * of all the properties that failed a permission check along with the
3406 * corresponding error numbers. The caller is responsible for freeing the
3409 * If every property checks out successfully, zero is returned and the list
3410 * pointed at by errlist is NULL.
3413 zfs_check_clearable(char *dataset, nvlist_t *props, nvlist_t **errlist)
3416 nvpair_t *pair, *next_pair;
3423 VERIFY(nvlist_alloc(&errors, NV_UNIQUE_NAME, KM_SLEEP) == 0);
3425 zc = kmem_alloc(sizeof (zfs_cmd_t), KM_SLEEP | KM_NODEBUG);
3426 (void) strcpy(zc->zc_name, dataset);
3427 pair = nvlist_next_nvpair(props, NULL);
3428 while (pair != NULL) {
3429 next_pair = nvlist_next_nvpair(props, pair);
3431 (void) strcpy(zc->zc_value, nvpair_name(pair));
3432 if ((err = zfs_check_settable(dataset, pair, CRED())) != 0 ||
3433 (err = zfs_secpolicy_inherit(zc, CRED())) != 0) {
3434 VERIFY(nvlist_remove_nvpair(props, pair) == 0);
3435 VERIFY(nvlist_add_int32(errors,
3436 zc->zc_value, err) == 0);
3440 kmem_free(zc, sizeof (zfs_cmd_t));
3442 if ((pair = nvlist_next_nvpair(errors, NULL)) == NULL) {
3443 nvlist_free(errors);
3446 VERIFY(nvpair_value_int32(pair, &rv) == 0);
3449 if (errlist == NULL)
3450 nvlist_free(errors);
3458 propval_equals(nvpair_t *p1, nvpair_t *p2)
3460 if (nvpair_type(p1) == DATA_TYPE_NVLIST) {
3461 /* dsl_prop_get_all_impl() format */
3463 VERIFY(nvpair_value_nvlist(p1, &attrs) == 0);
3464 VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE,
3468 if (nvpair_type(p2) == DATA_TYPE_NVLIST) {
3470 VERIFY(nvpair_value_nvlist(p2, &attrs) == 0);
3471 VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE,
3475 if (nvpair_type(p1) != nvpair_type(p2))
3478 if (nvpair_type(p1) == DATA_TYPE_STRING) {
3479 char *valstr1, *valstr2;
3481 VERIFY(nvpair_value_string(p1, (char **)&valstr1) == 0);
3482 VERIFY(nvpair_value_string(p2, (char **)&valstr2) == 0);
3483 return (strcmp(valstr1, valstr2) == 0);
3485 uint64_t intval1, intval2;
3487 VERIFY(nvpair_value_uint64(p1, &intval1) == 0);
3488 VERIFY(nvpair_value_uint64(p2, &intval2) == 0);
3489 return (intval1 == intval2);
3494 * Remove properties from props if they are not going to change (as determined
3495 * by comparison with origprops). Remove them from origprops as well, since we
3496 * do not need to clear or restore properties that won't change.
3499 props_reduce(nvlist_t *props, nvlist_t *origprops)
3501 nvpair_t *pair, *next_pair;
3503 if (origprops == NULL)
3504 return; /* all props need to be received */
3506 pair = nvlist_next_nvpair(props, NULL);
3507 while (pair != NULL) {
3508 const char *propname = nvpair_name(pair);
3511 next_pair = nvlist_next_nvpair(props, pair);
3513 if ((nvlist_lookup_nvpair(origprops, propname,
3514 &match) != 0) || !propval_equals(pair, match))
3515 goto next; /* need to set received value */
3517 /* don't clear the existing received value */
3518 (void) nvlist_remove_nvpair(origprops, match);
3519 /* don't bother receiving the property */
3520 (void) nvlist_remove_nvpair(props, pair);
3527 static boolean_t zfs_ioc_recv_inject_err;
3532 * zc_name name of containing filesystem
3533 * zc_nvlist_src{_size} nvlist of properties to apply
3534 * zc_value name of snapshot to create
3535 * zc_string name of clone origin (if DRR_FLAG_CLONE)
3536 * zc_cookie file descriptor to recv from
3537 * zc_begin_record the BEGIN record of the stream (not byteswapped)
3538 * zc_guid force flag
3539 * zc_cleanup_fd cleanup-on-exit file descriptor
3540 * zc_action_handle handle for this guid/ds mapping (or zero on first call)
3543 * zc_cookie number of bytes read
3544 * zc_nvlist_dst{_size} error for each unapplied received property
3545 * zc_obj zprop_errflags_t
3546 * zc_action_handle handle for this guid/ds mapping
3549 zfs_ioc_recv(zfs_cmd_t *zc)
3553 dmu_recv_cookie_t drc;
3554 boolean_t force = (boolean_t)zc->zc_guid;
3557 int props_error = 0;
3560 nvlist_t *props = NULL; /* sent properties */
3561 nvlist_t *origprops = NULL; /* existing properties */
3562 objset_t *origin = NULL;
3564 char tofs[ZFS_MAXNAMELEN];
3565 boolean_t first_recvd_props = B_FALSE;
3567 if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 ||
3568 strchr(zc->zc_value, '@') == NULL ||
3569 strchr(zc->zc_value, '%'))
3572 (void) strcpy(tofs, zc->zc_value);
3573 tosnap = strchr(tofs, '@');
3576 if (zc->zc_nvlist_src != 0 &&
3577 (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
3578 zc->zc_iflags, &props)) != 0)
3588 VERIFY(nvlist_alloc(&errors, NV_UNIQUE_NAME, KM_SLEEP) == 0);
3590 if (props && dmu_objset_hold(tofs, FTAG, &os) == 0) {
3591 if ((spa_version(os->os_spa) >= SPA_VERSION_RECVD_PROPS) &&
3592 !dsl_prop_get_hasrecvd(os)) {
3593 first_recvd_props = B_TRUE;
3597 * If new received properties are supplied, they are to
3598 * completely replace the existing received properties, so stash
3599 * away the existing ones.
3601 if (dsl_prop_get_received(os, &origprops) == 0) {
3602 nvlist_t *errlist = NULL;
3604 * Don't bother writing a property if its value won't
3605 * change (and avoid the unnecessary security checks).
3607 * The first receive after SPA_VERSION_RECVD_PROPS is a
3608 * special case where we blow away all local properties
3611 if (!first_recvd_props)
3612 props_reduce(props, origprops);
3613 if (zfs_check_clearable(tofs, origprops,
3615 (void) nvlist_merge(errors, errlist, 0);
3616 nvlist_free(errlist);
3619 dmu_objset_rele(os, FTAG);
3622 if (zc->zc_string[0]) {
3623 error = dmu_objset_hold(zc->zc_string, FTAG, &origin);
3628 error = dmu_recv_begin(tofs, tosnap, zc->zc_top_ds,
3629 &zc->zc_begin_record, force, origin, &drc);
3631 dmu_objset_rele(origin, FTAG);
3636 * Set properties before we receive the stream so that they are applied
3637 * to the new data. Note that we must call dmu_recv_stream() if
3638 * dmu_recv_begin() succeeds.
3643 if (dmu_objset_from_ds(drc.drc_logical_ds, &os) == 0) {
3644 if (drc.drc_newfs) {
3645 if (spa_version(os->os_spa) >=
3646 SPA_VERSION_RECVD_PROPS)
3647 first_recvd_props = B_TRUE;
3648 } else if (origprops != NULL) {
3649 if (clear_received_props(os, tofs, origprops,
3650 first_recvd_props ? NULL : props) != 0)
3651 zc->zc_obj |= ZPROP_ERR_NOCLEAR;
3653 zc->zc_obj |= ZPROP_ERR_NOCLEAR;
3655 dsl_prop_set_hasrecvd(os);
3656 } else if (!drc.drc_newfs) {
3657 zc->zc_obj |= ZPROP_ERR_NOCLEAR;
3660 (void) zfs_set_prop_nvlist(tofs, ZPROP_SRC_RECEIVED,
3662 (void) nvlist_merge(errors, errlist, 0);
3663 nvlist_free(errlist);
3666 if (fit_error_list(zc, &errors) != 0 || put_nvlist(zc, errors) != 0) {
3668 * Caller made zc->zc_nvlist_dst less than the minimum expected
3669 * size or supplied an invalid address.
3671 props_error = EINVAL;
3675 error = dmu_recv_stream(&drc, fp->f_vnode, &off, zc->zc_cleanup_fd,
3676 &zc->zc_action_handle);
3679 zfs_sb_t *zsb = NULL;
3681 if (get_zfs_sb(tofs, &zsb) == 0) {
3685 error = zfs_suspend_fs(zsb);
3687 * If the suspend fails, then the recv_end will
3688 * likely also fail, and clean up after itself.
3690 end_err = dmu_recv_end(&drc);
3692 error = zfs_resume_fs(zsb, tofs);
3693 error = error ? error : end_err;
3694 deactivate_super(zsb->z_sb);
3696 error = dmu_recv_end(&drc);
3700 zc->zc_cookie = off - fp->f_offset;
3701 if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0)
3705 if (zfs_ioc_recv_inject_err) {
3706 zfs_ioc_recv_inject_err = B_FALSE;
3711 * On error, restore the original props.
3713 if (error && props) {
3714 if (dmu_objset_hold(tofs, FTAG, &os) == 0) {
3715 if (clear_received_props(os, tofs, props, NULL) != 0) {
3717 * We failed to clear the received properties.
3718 * Since we may have left a $recvd value on the
3719 * system, we can't clear the $hasrecvd flag.
3721 zc->zc_obj |= ZPROP_ERR_NORESTORE;
3722 } else if (first_recvd_props) {
3723 dsl_prop_unset_hasrecvd(os);
3725 dmu_objset_rele(os, FTAG);
3726 } else if (!drc.drc_newfs) {
3727 /* We failed to clear the received properties. */
3728 zc->zc_obj |= ZPROP_ERR_NORESTORE;
3731 if (origprops == NULL && !drc.drc_newfs) {
3732 /* We failed to stash the original properties. */
3733 zc->zc_obj |= ZPROP_ERR_NORESTORE;
3737 * dsl_props_set() will not convert RECEIVED to LOCAL on or
3738 * after SPA_VERSION_RECVD_PROPS, so we need to specify LOCAL
3739 * explictly if we're restoring local properties cleared in the
3740 * first new-style receive.
3742 if (origprops != NULL &&
3743 zfs_set_prop_nvlist(tofs, (first_recvd_props ?
3744 ZPROP_SRC_LOCAL : ZPROP_SRC_RECEIVED),
3745 origprops, NULL) != 0) {
3747 * We stashed the original properties but failed to
3750 zc->zc_obj |= ZPROP_ERR_NORESTORE;
3755 nvlist_free(origprops);
3756 nvlist_free(errors);
3760 error = props_error;
3767 * zc_name name of snapshot to send
3768 * zc_cookie file descriptor to send stream to
3769 * zc_obj fromorigin flag (mutually exclusive with zc_fromobj)
3770 * zc_sendobj objsetid of snapshot to send
3771 * zc_fromobj objsetid of incremental fromsnap (may be zero)
3776 zfs_ioc_send(zfs_cmd_t *zc)
3778 objset_t *fromsnap = NULL;
3784 dsl_dataset_t *dsfrom = NULL;
3788 error = spa_open(zc->zc_name, &spa, FTAG);
3792 dp = spa_get_dsl(spa);
3793 rw_enter(&dp->dp_config_rwlock, RW_READER);
3794 error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &ds);
3795 rw_exit(&dp->dp_config_rwlock);
3797 spa_close(spa, FTAG);
3801 error = dmu_objset_from_ds(ds, &tosnap);
3803 dsl_dataset_rele(ds, FTAG);
3804 spa_close(spa, FTAG);
3808 if (zc->zc_fromobj != 0) {
3809 rw_enter(&dp->dp_config_rwlock, RW_READER);
3810 error = dsl_dataset_hold_obj(dp, zc->zc_fromobj, FTAG, &dsfrom);
3811 rw_exit(&dp->dp_config_rwlock);
3812 spa_close(spa, FTAG);
3814 dsl_dataset_rele(ds, FTAG);
3817 error = dmu_objset_from_ds(dsfrom, &fromsnap);
3819 dsl_dataset_rele(dsfrom, FTAG);
3820 dsl_dataset_rele(ds, FTAG);
3824 spa_close(spa, FTAG);
3827 fp = getf(zc->zc_cookie);
3829 dsl_dataset_rele(ds, FTAG);
3831 dsl_dataset_rele(dsfrom, FTAG);
3836 error = dmu_sendbackup(tosnap, fromsnap, zc->zc_obj, fp->f_vnode, &off);
3838 if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0)
3840 releasef(zc->zc_cookie);
3842 dsl_dataset_rele(dsfrom, FTAG);
3843 dsl_dataset_rele(ds, FTAG);
3848 zfs_ioc_inject_fault(zfs_cmd_t *zc)
3852 error = zio_inject_fault(zc->zc_name, (int)zc->zc_guid, &id,
3853 &zc->zc_inject_record);
3856 zc->zc_guid = (uint64_t)id;
3862 zfs_ioc_clear_fault(zfs_cmd_t *zc)
3864 return (zio_clear_fault((int)zc->zc_guid));
3868 zfs_ioc_inject_list_next(zfs_cmd_t *zc)
3870 int id = (int)zc->zc_guid;
3873 error = zio_inject_list_next(&id, zc->zc_name, sizeof (zc->zc_name),
3874 &zc->zc_inject_record);
3882 zfs_ioc_error_log(zfs_cmd_t *zc)
3886 size_t count = (size_t)zc->zc_nvlist_dst_size;
3888 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
3891 error = spa_get_errlog(spa, (void *)(uintptr_t)zc->zc_nvlist_dst,
3894 zc->zc_nvlist_dst_size = count;
3896 zc->zc_nvlist_dst_size = spa_get_errlog_size(spa);
3898 spa_close(spa, FTAG);
3904 zfs_ioc_clear(zfs_cmd_t *zc)
3911 * On zpool clear we also fix up missing slogs
3913 mutex_enter(&spa_namespace_lock);
3914 spa = spa_lookup(zc->zc_name);
3916 mutex_exit(&spa_namespace_lock);
3919 if (spa_get_log_state(spa) == SPA_LOG_MISSING) {
3920 /* we need to let spa_open/spa_load clear the chains */
3921 spa_set_log_state(spa, SPA_LOG_CLEAR);
3923 spa->spa_last_open_failed = 0;
3924 mutex_exit(&spa_namespace_lock);
3926 if (zc->zc_cookie & ZPOOL_NO_REWIND) {
3927 error = spa_open(zc->zc_name, &spa, FTAG);
3930 nvlist_t *config = NULL;
3932 if (zc->zc_nvlist_src == 0)
3935 if ((error = get_nvlist(zc->zc_nvlist_src,
3936 zc->zc_nvlist_src_size, zc->zc_iflags, &policy)) == 0) {
3937 error = spa_open_rewind(zc->zc_name, &spa, FTAG,
3939 if (config != NULL) {
3942 if ((err = put_nvlist(zc, config)) != 0)
3944 nvlist_free(config);
3946 nvlist_free(policy);
3953 spa_vdev_state_enter(spa, SCL_NONE);
3955 if (zc->zc_guid == 0) {
3958 vd = spa_lookup_by_guid(spa, zc->zc_guid, B_TRUE);
3960 (void) spa_vdev_state_exit(spa, NULL, ENODEV);
3961 spa_close(spa, FTAG);
3966 vdev_clear(spa, vd);
3968 (void) spa_vdev_state_exit(spa, NULL, 0);
3971 * Resume any suspended I/Os.
3973 if (zio_resume(spa) != 0)
3976 spa_close(spa, FTAG);
3983 * zc_name name of filesystem
3984 * zc_value name of origin snapshot
3987 * zc_string name of conflicting snapshot, if there is one
3990 zfs_ioc_promote(zfs_cmd_t *zc)
3995 * We don't need to unmount *all* the origin fs's snapshots, but
3998 cp = strchr(zc->zc_value, '@');
4001 (void) dmu_objset_find(zc->zc_value,
4002 zfs_unmount_snap, NULL, DS_FIND_SNAPSHOTS);
4003 return (dsl_dataset_promote(zc->zc_name, zc->zc_string));
4007 * Retrieve a single {user|group}{used|quota}@... property.
4010 * zc_name name of filesystem
4011 * zc_objset_type zfs_userquota_prop_t
4012 * zc_value domain name (eg. "S-1-234-567-89")
4013 * zc_guid RID/UID/GID
4016 * zc_cookie property value
4019 zfs_ioc_userspace_one(zfs_cmd_t *zc)
4024 if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS)
4027 error = zfs_sb_hold(zc->zc_name, FTAG, &zsb, B_FALSE);
4031 error = zfs_userspace_one(zsb,
4032 zc->zc_objset_type, zc->zc_value, zc->zc_guid, &zc->zc_cookie);
4033 zfs_sb_rele(zsb, FTAG);
4040 * zc_name name of filesystem
4041 * zc_cookie zap cursor
4042 * zc_objset_type zfs_userquota_prop_t
4043 * zc_nvlist_dst[_size] buffer to fill (not really an nvlist)
4046 * zc_nvlist_dst[_size] data buffer (array of zfs_useracct_t)
4047 * zc_cookie zap cursor
4050 zfs_ioc_userspace_many(zfs_cmd_t *zc)
4053 int bufsize = zc->zc_nvlist_dst_size;
4060 error = zfs_sb_hold(zc->zc_name, FTAG, &zsb, B_FALSE);
4064 buf = vmem_alloc(bufsize, KM_SLEEP);
4066 error = zfs_userspace_many(zsb, zc->zc_objset_type, &zc->zc_cookie,
4067 buf, &zc->zc_nvlist_dst_size);
4070 error = xcopyout(buf,
4071 (void *)(uintptr_t)zc->zc_nvlist_dst,
4072 zc->zc_nvlist_dst_size);
4074 vmem_free(buf, bufsize);
4075 zfs_sb_rele(zsb, FTAG);
4082 * zc_name name of filesystem
4088 zfs_ioc_userspace_upgrade(zfs_cmd_t *zc)
4094 if (get_zfs_sb(zc->zc_name, &zsb) == 0) {
4095 if (!dmu_objset_userused_enabled(zsb->z_os)) {
4097 * If userused is not enabled, it may be because the
4098 * objset needs to be closed & reopened (to grow the
4099 * objset_phys_t). Suspend/resume the fs will do that.
4101 error = zfs_suspend_fs(zsb);
4103 error = zfs_resume_fs(zsb, zc->zc_name);
4106 error = dmu_objset_userspace_upgrade(zsb->z_os);
4107 deactivate_super(zsb->z_sb);
4109 /* XXX kind of reading contents without owning */
4110 error = dmu_objset_hold(zc->zc_name, FTAG, &os);
4114 error = dmu_objset_userspace_upgrade(os);
4115 dmu_objset_rele(os, FTAG);
4122 zfs_ioc_share(zfs_cmd_t *zc)
4127 ace_t full_access[] = {
4128 {(uid_t)-1, ACE_ALL_PERMS, ACE_EVERYONE, 0}
4133 * zc_name name of containing filesystem
4134 * zc_obj object # beyond which we want next in-use object #
4137 * zc_obj next in-use object #
4140 zfs_ioc_next_obj(zfs_cmd_t *zc)
4142 objset_t *os = NULL;
4145 error = dmu_objset_hold(zc->zc_name, FTAG, &os);
4149 error = dmu_object_next(os, &zc->zc_obj, B_FALSE,
4150 os->os_dsl_dataset->ds_phys->ds_prev_snap_txg);
4152 dmu_objset_rele(os, FTAG);
4158 * zc_name name of filesystem
4159 * zc_value prefix name for snapshot
4160 * zc_cleanup_fd cleanup-on-exit file descriptor for calling process
4165 zfs_ioc_tmp_snapshot(zfs_cmd_t *zc)
4170 snap_name = kmem_asprintf("%s-%016llx", zc->zc_value,
4171 (u_longlong_t)ddi_get_lbolt64());
4173 if (strlen(snap_name) >= MAXNAMELEN) {
4178 error = dmu_objset_snapshot(zc->zc_name, snap_name, snap_name,
4179 NULL, B_FALSE, B_TRUE, zc->zc_cleanup_fd);
4185 (void) strcpy(zc->zc_value, snap_name);
4192 * zc_name name of "to" snapshot
4193 * zc_value name of "from" snapshot
4194 * zc_cookie file descriptor to write diff data on
4197 * dmu_diff_record_t's to the file descriptor
4200 zfs_ioc_diff(zfs_cmd_t *zc)
4208 error = dmu_objset_hold(zc->zc_name, FTAG, &tosnap);
4212 error = dmu_objset_hold(zc->zc_value, FTAG, &fromsnap);
4214 dmu_objset_rele(tosnap, FTAG);
4218 fp = getf(zc->zc_cookie);
4220 dmu_objset_rele(fromsnap, FTAG);
4221 dmu_objset_rele(tosnap, FTAG);
4227 error = dmu_diff(tosnap, fromsnap, fp->f_vnode, &off);
4229 if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0)
4231 releasef(zc->zc_cookie);
4233 dmu_objset_rele(fromsnap, FTAG);
4234 dmu_objset_rele(tosnap, FTAG);
4239 * Remove all ACL files in shares dir
4241 #ifdef HAVE_SMB_SHARE
4243 zfs_smb_acl_purge(znode_t *dzp)
4246 zap_attribute_t zap;
4247 zfs_sb_t *zsb = ZTOZSB(dzp);
4250 for (zap_cursor_init(&zc, zsb->z_os, dzp->z_id);
4251 (error = zap_cursor_retrieve(&zc, &zap)) == 0;
4252 zap_cursor_advance(&zc)) {
4253 if ((error = VOP_REMOVE(ZTOV(dzp), zap.za_name, kcred,
4257 zap_cursor_fini(&zc);
4260 #endif /* HAVE_SMB_SHARE */
4263 zfs_ioc_smb_acl(zfs_cmd_t *zc)
4265 #ifdef HAVE_SMB_SHARE
4268 vnode_t *resourcevp = NULL;
4277 if ((error = lookupname(zc->zc_value, UIO_SYSSPACE,
4278 NO_FOLLOW, NULL, &vp)) != 0)
4281 /* Now make sure mntpnt and dataset are ZFS */
4283 if (vp->v_vfsp->vfs_fstype != zfsfstype ||
4284 (strcmp((char *)refstr_value(vp->v_vfsp->vfs_resource),
4285 zc->zc_name) != 0)) {
4295 * Create share dir if its missing.
4297 mutex_enter(&zsb->z_lock);
4298 if (zsb->z_shares_dir == 0) {
4301 tx = dmu_tx_create(zsb->z_os);
4302 dmu_tx_hold_zap(tx, MASTER_NODE_OBJ, TRUE,
4304 dmu_tx_hold_zap(tx, DMU_NEW_OBJECT, FALSE, NULL);
4305 error = dmu_tx_assign(tx, TXG_WAIT);
4309 error = zfs_create_share_dir(zsb, tx);
4313 mutex_exit(&zsb->z_lock);
4319 mutex_exit(&zsb->z_lock);
4321 ASSERT(zsb->z_shares_dir);
4322 if ((error = zfs_zget(zsb, zsb->z_shares_dir, &sharedir)) != 0) {
4328 switch (zc->zc_cookie) {
4329 case ZFS_SMB_ACL_ADD:
4330 vattr.va_mask = AT_MODE|AT_UID|AT_GID|AT_TYPE;
4331 vattr.va_mode = S_IFREG|0777;
4335 vsec.vsa_mask = VSA_ACE;
4336 vsec.vsa_aclentp = &full_access;
4337 vsec.vsa_aclentsz = sizeof (full_access);
4338 vsec.vsa_aclcnt = 1;
4340 error = VOP_CREATE(ZTOV(sharedir), zc->zc_string,
4341 &vattr, EXCL, 0, &resourcevp, kcred, 0, NULL, &vsec);
4343 VN_RELE(resourcevp);
4346 case ZFS_SMB_ACL_REMOVE:
4347 error = VOP_REMOVE(ZTOV(sharedir), zc->zc_string, kcred,
4351 case ZFS_SMB_ACL_RENAME:
4352 if ((error = get_nvlist(zc->zc_nvlist_src,
4353 zc->zc_nvlist_src_size, zc->zc_iflags, &nvlist)) != 0) {
4358 if (nvlist_lookup_string(nvlist, ZFS_SMB_ACL_SRC, &src) ||
4359 nvlist_lookup_string(nvlist, ZFS_SMB_ACL_TARGET,
4362 VN_RELE(ZTOV(sharedir));
4364 nvlist_free(nvlist);
4367 error = VOP_RENAME(ZTOV(sharedir), src, ZTOV(sharedir), target,
4369 nvlist_free(nvlist);
4372 case ZFS_SMB_ACL_PURGE:
4373 error = zfs_smb_acl_purge(sharedir);
4382 VN_RELE(ZTOV(sharedir));
4389 #endif /* HAVE_SMB_SHARE */
4394 * zc_name name of filesystem
4395 * zc_value short name of snap
4396 * zc_string user-supplied tag for this hold
4397 * zc_cookie recursive flag
4398 * zc_temphold set if hold is temporary
4399 * zc_cleanup_fd cleanup-on-exit file descriptor for calling process
4400 * zc_sendobj if non-zero, the objid for zc_name@zc_value
4401 * zc_createtxg if zc_sendobj is non-zero, snap must have zc_createtxg
4406 zfs_ioc_hold(zfs_cmd_t *zc)
4408 boolean_t recursive = zc->zc_cookie;
4415 if (snapshot_namecheck(zc->zc_value, NULL, NULL) != 0)
4418 if (zc->zc_sendobj == 0) {
4419 return (dsl_dataset_user_hold(zc->zc_name, zc->zc_value,
4420 zc->zc_string, recursive, zc->zc_temphold,
4421 zc->zc_cleanup_fd));
4427 error = spa_open(zc->zc_name, &spa, FTAG);
4431 dp = spa_get_dsl(spa);
4432 rw_enter(&dp->dp_config_rwlock, RW_READER);
4433 error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &ds);
4434 rw_exit(&dp->dp_config_rwlock);
4435 spa_close(spa, FTAG);
4440 * Until we have a hold on this snapshot, it's possible that
4441 * zc_sendobj could've been destroyed and reused as part
4442 * of a later txg. Make sure we're looking at the right object.
4444 if (zc->zc_createtxg != ds->ds_phys->ds_creation_txg) {
4445 dsl_dataset_rele(ds, FTAG);
4449 if (zc->zc_cleanup_fd != -1 && zc->zc_temphold) {
4450 error = zfs_onexit_fd_hold(zc->zc_cleanup_fd, &minor);
4452 dsl_dataset_rele(ds, FTAG);
4457 error = dsl_dataset_user_hold_for_send(ds, zc->zc_string,
4461 dsl_register_onexit_hold_cleanup(ds, zc->zc_string,
4464 zfs_onexit_fd_rele(zc->zc_cleanup_fd);
4466 dsl_dataset_rele(ds, FTAG);
4473 * zc_name name of dataset from which we're releasing a user hold
4474 * zc_value short name of snap
4475 * zc_string user-supplied tag for this hold
4476 * zc_cookie recursive flag
4481 zfs_ioc_release(zfs_cmd_t *zc)
4483 boolean_t recursive = zc->zc_cookie;
4485 if (snapshot_namecheck(zc->zc_value, NULL, NULL) != 0)
4488 return (dsl_dataset_user_release(zc->zc_name, zc->zc_value,
4489 zc->zc_string, recursive));
4494 * zc_name name of filesystem
4497 * zc_nvlist_src{_size} nvlist of snapshot holds
4500 zfs_ioc_get_holds(zfs_cmd_t *zc)
4505 if ((error = dsl_dataset_get_holds(zc->zc_name, &nvp)) == 0) {
4506 error = put_nvlist(zc, nvp);
4515 * zc_guid flags (ZEVENT_NONBLOCK)
4518 * zc_nvlist_dst next nvlist event
4519 * zc_cookie dropped events since last get
4520 * zc_cleanup_fd cleanup-on-exit file descriptor
4523 zfs_ioc_events_next(zfs_cmd_t *zc)
4526 nvlist_t *event = NULL;
4528 uint64_t dropped = 0;
4531 error = zfs_zevent_fd_hold(zc->zc_cleanup_fd, &minor, &ze);
4536 error = zfs_zevent_next(ze, &event,
4537 &zc->zc_nvlist_dst_size, &dropped);
4538 if (event != NULL) {
4539 zc->zc_cookie = dropped;
4540 error = put_nvlist(zc, event);
4544 if (zc->zc_guid & ZEVENT_NONBLOCK)
4547 if ((error == 0) || (error != ENOENT))
4550 error = zfs_zevent_wait(ze);
4555 zfs_zevent_fd_rele(zc->zc_cleanup_fd);
4562 * zc_cookie cleared events count
4565 zfs_ioc_events_clear(zfs_cmd_t *zc)
4569 zfs_zevent_drain_all(&count);
4570 zc->zc_cookie = count;
4576 * pool create, destroy, and export don't log the history as part of
4577 * zfsdev_ioctl, but rather zfs_ioc_pool_create, and zfs_ioc_pool_export
4578 * do the logging of those commands.
4580 static zfs_ioc_vec_t zfs_ioc_vec[] = {
4581 { zfs_ioc_pool_create, zfs_secpolicy_config, POOL_NAME, B_FALSE,
4583 { zfs_ioc_pool_destroy, zfs_secpolicy_config, POOL_NAME, B_FALSE,
4585 { zfs_ioc_pool_import, zfs_secpolicy_config, POOL_NAME, B_TRUE,
4587 { zfs_ioc_pool_export, zfs_secpolicy_config, POOL_NAME, B_FALSE,
4589 { zfs_ioc_pool_configs, zfs_secpolicy_none, NO_NAME, B_FALSE,
4591 { zfs_ioc_pool_stats, zfs_secpolicy_read, POOL_NAME, B_FALSE,
4593 { zfs_ioc_pool_tryimport, zfs_secpolicy_config, NO_NAME, B_FALSE,
4595 { zfs_ioc_pool_scan, zfs_secpolicy_config, POOL_NAME, B_TRUE,
4596 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
4597 { zfs_ioc_pool_freeze, zfs_secpolicy_config, NO_NAME, B_FALSE,
4598 POOL_CHECK_READONLY },
4599 { zfs_ioc_pool_upgrade, zfs_secpolicy_config, POOL_NAME, B_TRUE,
4600 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
4601 { zfs_ioc_pool_get_history, zfs_secpolicy_config, POOL_NAME, B_FALSE,
4603 { zfs_ioc_vdev_add, zfs_secpolicy_config, POOL_NAME, B_TRUE,
4604 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
4605 { zfs_ioc_vdev_remove, zfs_secpolicy_config, POOL_NAME, B_TRUE,
4606 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
4607 { zfs_ioc_vdev_set_state, zfs_secpolicy_config, POOL_NAME, B_TRUE,
4608 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
4609 { zfs_ioc_vdev_attach, zfs_secpolicy_config, POOL_NAME, B_TRUE,
4610 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
4611 { zfs_ioc_vdev_detach, zfs_secpolicy_config, POOL_NAME, B_TRUE,
4612 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
4613 { zfs_ioc_vdev_setpath, zfs_secpolicy_config, POOL_NAME, B_FALSE,
4614 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
4615 { zfs_ioc_vdev_setfru, zfs_secpolicy_config, POOL_NAME, B_FALSE,
4616 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
4617 { zfs_ioc_objset_stats, zfs_secpolicy_read, DATASET_NAME, B_FALSE,
4618 POOL_CHECK_SUSPENDED },
4619 { zfs_ioc_objset_zplprops, zfs_secpolicy_read, DATASET_NAME, B_FALSE,
4621 { zfs_ioc_dataset_list_next, zfs_secpolicy_read, DATASET_NAME, B_FALSE,
4622 POOL_CHECK_SUSPENDED },
4623 { zfs_ioc_snapshot_list_next, zfs_secpolicy_read, DATASET_NAME, B_FALSE,
4624 POOL_CHECK_SUSPENDED },
4625 { zfs_ioc_set_prop, zfs_secpolicy_none, DATASET_NAME, B_TRUE,
4626 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
4627 { zfs_ioc_create_minor, zfs_secpolicy_config, DATASET_NAME, B_FALSE,
4629 { zfs_ioc_remove_minor, zfs_secpolicy_config, DATASET_NAME, B_FALSE,
4631 { zfs_ioc_create, zfs_secpolicy_create, DATASET_NAME, B_TRUE,
4632 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
4633 { zfs_ioc_destroy, zfs_secpolicy_destroy, DATASET_NAME, B_TRUE,
4634 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
4635 { zfs_ioc_rollback, zfs_secpolicy_rollback, DATASET_NAME, B_TRUE,
4636 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
4637 { zfs_ioc_rename, zfs_secpolicy_rename, DATASET_NAME, B_TRUE,
4638 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
4639 { zfs_ioc_recv, zfs_secpolicy_receive, DATASET_NAME, B_TRUE,
4640 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
4641 { zfs_ioc_send, zfs_secpolicy_send, DATASET_NAME, B_TRUE,
4643 { zfs_ioc_inject_fault, zfs_secpolicy_inject, NO_NAME, B_FALSE,
4645 { zfs_ioc_clear_fault, zfs_secpolicy_inject, NO_NAME, B_FALSE,
4647 { zfs_ioc_inject_list_next, zfs_secpolicy_inject, NO_NAME, B_FALSE,
4649 { zfs_ioc_error_log, zfs_secpolicy_inject, POOL_NAME, B_FALSE,
4651 { zfs_ioc_clear, zfs_secpolicy_config, POOL_NAME, B_TRUE,
4653 { zfs_ioc_promote, zfs_secpolicy_promote, DATASET_NAME, B_TRUE,
4654 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
4655 { zfs_ioc_destroy_snaps, zfs_secpolicy_destroy_snaps, DATASET_NAME,
4656 B_TRUE, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
4657 { zfs_ioc_snapshot, zfs_secpolicy_snapshot, DATASET_NAME, B_TRUE,
4658 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
4659 { zfs_ioc_dsobj_to_dsname, zfs_secpolicy_diff, POOL_NAME, B_FALSE,
4661 { zfs_ioc_obj_to_path, zfs_secpolicy_diff, DATASET_NAME, B_FALSE,
4662 POOL_CHECK_SUSPENDED },
4663 { zfs_ioc_pool_set_props, zfs_secpolicy_config, POOL_NAME, B_TRUE,
4664 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
4665 { zfs_ioc_pool_get_props, zfs_secpolicy_read, POOL_NAME, B_FALSE,
4667 { zfs_ioc_set_fsacl, zfs_secpolicy_fsacl, DATASET_NAME, B_TRUE,
4668 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
4669 { zfs_ioc_get_fsacl, zfs_secpolicy_read, DATASET_NAME, B_FALSE,
4671 { zfs_ioc_share, zfs_secpolicy_share, DATASET_NAME, B_FALSE,
4673 { zfs_ioc_inherit_prop, zfs_secpolicy_inherit, DATASET_NAME, B_TRUE,
4674 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
4675 { zfs_ioc_smb_acl, zfs_secpolicy_smb_acl, DATASET_NAME, B_FALSE,
4677 { zfs_ioc_userspace_one, zfs_secpolicy_userspace_one, DATASET_NAME,
4678 B_FALSE, POOL_CHECK_NONE },
4679 { zfs_ioc_userspace_many, zfs_secpolicy_userspace_many, DATASET_NAME,
4680 B_FALSE, POOL_CHECK_NONE },
4681 { zfs_ioc_userspace_upgrade, zfs_secpolicy_userspace_upgrade,
4682 DATASET_NAME, B_FALSE, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
4683 { zfs_ioc_hold, zfs_secpolicy_hold, DATASET_NAME, B_TRUE,
4684 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
4685 { zfs_ioc_release, zfs_secpolicy_release, DATASET_NAME, B_TRUE,
4686 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
4687 { zfs_ioc_get_holds, zfs_secpolicy_read, DATASET_NAME, B_FALSE,
4688 POOL_CHECK_SUSPENDED },
4689 { zfs_ioc_objset_recvd_props, zfs_secpolicy_read, DATASET_NAME, B_FALSE,
4691 { zfs_ioc_vdev_split, zfs_secpolicy_config, POOL_NAME, B_TRUE,
4692 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
4693 { zfs_ioc_next_obj, zfs_secpolicy_read, DATASET_NAME, B_FALSE,
4695 { zfs_ioc_diff, zfs_secpolicy_diff, DATASET_NAME, B_FALSE,
4697 { zfs_ioc_tmp_snapshot, zfs_secpolicy_tmp_snapshot, DATASET_NAME,
4698 B_FALSE, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
4699 { zfs_ioc_obj_to_stats, zfs_secpolicy_diff, DATASET_NAME, B_FALSE,
4700 POOL_CHECK_SUSPENDED },
4701 { zfs_ioc_events_next, zfs_secpolicy_config, NO_NAME, B_FALSE,
4703 { zfs_ioc_events_clear, zfs_secpolicy_config, NO_NAME, B_FALSE,
4708 pool_status_check(const char *name, zfs_ioc_namecheck_t type,
4709 zfs_ioc_poolcheck_t check)
4714 ASSERT(type == POOL_NAME || type == DATASET_NAME);
4716 if (check & POOL_CHECK_NONE)
4719 error = spa_open(name, &spa, FTAG);
4721 if ((check & POOL_CHECK_SUSPENDED) && spa_suspended(spa))
4723 else if ((check & POOL_CHECK_READONLY) && !spa_writeable(spa))
4725 spa_close(spa, FTAG);
4731 zfsdev_get_state_impl(minor_t minor, enum zfsdev_state_type which)
4735 ASSERT(MUTEX_HELD(&zfsdev_state_lock));
4737 for (zs = list_head(&zfsdev_state_list); zs != NULL;
4738 zs = list_next(&zfsdev_state_list, zs)) {
4739 if (zs->zs_minor == minor) {
4741 case ZST_ONEXIT: return (zs->zs_onexit);
4742 case ZST_ZEVENT: return (zs->zs_zevent);
4743 case ZST_ALL: return (zs);
4752 zfsdev_get_state(minor_t minor, enum zfsdev_state_type which)
4756 mutex_enter(&zfsdev_state_lock);
4757 ptr = zfsdev_get_state_impl(minor, which);
4758 mutex_exit(&zfsdev_state_lock);
4764 zfsdev_getminor(struct file *filp)
4766 ASSERT(filp != NULL);
4767 ASSERT(filp->private_data != NULL);
4769 return (((zfsdev_state_t *)filp->private_data)->zs_minor);
4773 * Find a free minor number. The zfsdev_state_list is expected to
4774 * be short since it is only a list of currently open file handles.
4777 zfsdev_minor_alloc(void)
4779 static minor_t last_minor = 0;
4782 ASSERT(MUTEX_HELD(&zfsdev_state_lock));
4784 for (m = last_minor + 1; m != last_minor; m++) {
4785 if (m > ZFSDEV_MAX_MINOR)
4787 if (zfsdev_get_state_impl(m, ZST_ALL) == NULL) {
4797 zfsdev_state_init(struct file *filp)
4802 ASSERT(MUTEX_HELD(&zfsdev_state_lock));
4804 minor = zfsdev_minor_alloc();
4808 zs = kmem_zalloc( sizeof(zfsdev_state_t), KM_SLEEP);
4813 zs->zs_minor = minor;
4814 filp->private_data = zs;
4816 zfs_onexit_init((zfs_onexit_t **)&zs->zs_onexit);
4817 zfs_zevent_init((zfs_zevent_t **)&zs->zs_zevent);
4819 list_insert_tail(&zfsdev_state_list, zs);
4825 zfsdev_state_destroy(struct file *filp)
4829 ASSERT(MUTEX_HELD(&zfsdev_state_lock));
4830 ASSERT(filp->private_data != NULL);
4832 zs = filp->private_data;
4833 zfs_onexit_destroy(zs->zs_onexit);
4834 zfs_zevent_destroy(zs->zs_zevent);
4836 list_remove(&zfsdev_state_list, zs);
4837 kmem_free(zs, sizeof(zfsdev_state_t));
4843 zfsdev_open(struct inode *ino, struct file *filp)
4847 mutex_enter(&zfsdev_state_lock);
4848 error = zfsdev_state_init(filp);
4849 mutex_exit(&zfsdev_state_lock);
4855 zfsdev_release(struct inode *ino, struct file *filp)
4859 mutex_enter(&zfsdev_state_lock);
4860 error = zfsdev_state_destroy(filp);
4861 mutex_exit(&zfsdev_state_lock);
4867 zfsdev_ioctl(struct file *filp, unsigned cmd, unsigned long arg)
4871 int error, rc, flag = 0;
4873 vec = cmd - ZFS_IOC;
4874 if (vec >= sizeof (zfs_ioc_vec) / sizeof (zfs_ioc_vec[0]))
4877 zc = kmem_zalloc(sizeof (zfs_cmd_t), KM_SLEEP | KM_NODEBUG);
4879 error = ddi_copyin((void *)arg, zc, sizeof (zfs_cmd_t), flag);
4883 if ((error == 0) && !(flag & FKIOCTL))
4884 error = zfs_ioc_vec[vec].zvec_secpolicy(zc, CRED());
4887 * Ensure that all pool/dataset names are valid before we pass down to
4891 zc->zc_name[sizeof (zc->zc_name) - 1] = '\0';
4892 zc->zc_iflags = flag & FKIOCTL;
4893 switch (zfs_ioc_vec[vec].zvec_namecheck) {
4895 if (pool_namecheck(zc->zc_name, NULL, NULL) != 0)
4897 error = pool_status_check(zc->zc_name,
4898 zfs_ioc_vec[vec].zvec_namecheck,
4899 zfs_ioc_vec[vec].zvec_pool_check);
4903 if (dataset_namecheck(zc->zc_name, NULL, NULL) != 0)
4905 error = pool_status_check(zc->zc_name,
4906 zfs_ioc_vec[vec].zvec_namecheck,
4907 zfs_ioc_vec[vec].zvec_pool_check);
4916 error = zfs_ioc_vec[vec].zvec_func(zc);
4918 rc = ddi_copyout(zc, (void *)arg, sizeof (zfs_cmd_t), flag);
4922 if (zfs_ioc_vec[vec].zvec_his_log)
4923 zfs_log_history(zc);
4926 kmem_free(zc, sizeof (zfs_cmd_t));
4930 #ifdef CONFIG_COMPAT
4932 zfsdev_compat_ioctl(struct file *filp, unsigned cmd, unsigned long arg)
4934 return zfsdev_ioctl(filp, cmd, arg);
4937 #define zfsdev_compat_ioctl NULL
4940 static const struct file_operations zfsdev_fops = {
4941 .open = zfsdev_open,
4942 .release = zfsdev_release,
4943 .unlocked_ioctl = zfsdev_ioctl,
4944 .compat_ioctl = zfsdev_compat_ioctl,
4945 .owner = THIS_MODULE,
4948 static struct miscdevice zfs_misc = {
4949 .minor = MISC_DYNAMIC_MINOR,
4951 .fops = &zfsdev_fops,
4959 mutex_init(&zfsdev_state_lock, NULL, MUTEX_DEFAULT, NULL);
4960 list_create(&zfsdev_state_list, sizeof (zfsdev_state_t),
4961 offsetof(zfsdev_state_t, zs_next));
4963 error = misc_register(&zfs_misc);
4965 printk(KERN_INFO "ZFS: misc_register() failed %d\n", error);
4977 error = misc_deregister(&zfs_misc);
4979 printk(KERN_INFO "ZFS: misc_deregister() failed %d\n", error);
4981 mutex_destroy(&zfsdev_state_lock);
4982 list_destroy(&zfsdev_state_list);
4985 uint_t zfs_fsyncer_key;
4986 extern uint_t rrw_tsd_key;
4989 #define ZFS_DEBUG_STR " (DEBUG mode)"
4991 #define ZFS_DEBUG_STR ""
4999 spa_init(FREAD | FWRITE);
5002 if ((error = zvol_init()) != 0)
5005 if ((error = zfs_attach()) != 0)
5008 tsd_create(&zfs_fsyncer_key, NULL);
5009 tsd_create(&rrw_tsd_key, NULL);
5011 printk(KERN_NOTICE "ZFS: Loaded module v%s-%s%s, "
5012 "ZFS pool version %s, ZFS filesystem version %s\n",
5013 ZFS_META_VERSION, ZFS_META_RELEASE, ZFS_DEBUG_STR,
5014 SPA_VERSION_STRING, ZPL_VERSION_STRING);
5023 printk(KERN_NOTICE "ZFS: Failed to Load ZFS Filesystem v%s-%s%s"
5024 ", rc = %d\n", ZFS_META_VERSION, ZFS_META_RELEASE,
5025 ZFS_DEBUG_STR, error);
5038 tsd_destroy(&zfs_fsyncer_key);
5039 tsd_destroy(&rrw_tsd_key);
5041 printk(KERN_NOTICE "ZFS: Unloaded module v%s-%s%s\n",
5042 ZFS_META_VERSION, ZFS_META_RELEASE, ZFS_DEBUG_STR);
5048 spl_module_init(_init);
5049 spl_module_exit(_fini);
5051 MODULE_DESCRIPTION("ZFS");
5052 MODULE_AUTHOR(ZFS_META_AUTHOR);
5053 MODULE_LICENSE(ZFS_META_LICENSE);
5054 #endif /* HAVE_SPL */