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 * Copyright (c) 2012, Joyent, Inc. All rights reserved.
27 #include <sys/types.h>
28 #include <sys/param.h>
29 #include <sys/errno.h>
32 #include <sys/modctl.h>
37 #include <sys/cmn_err.h>
39 #include <sys/zfs_ioctl.h>
40 #include <sys/zfs_vfsops.h>
41 #include <sys/zfs_znode.h>
44 #include <sys/spa_impl.h>
46 #include <sys/priv_impl.h>
48 #include <sys/dsl_dir.h>
49 #include <sys/dsl_dataset.h>
50 #include <sys/dsl_prop.h>
51 #include <sys/dsl_deleg.h>
52 #include <sys/dmu_objset.h>
54 #include <sys/sunddi.h>
55 #include <sys/sunldi.h>
56 #include <sys/policy.h>
58 #include <sys/nvpair.h>
59 #include <sys/pathname.h>
60 #include <sys/mount.h>
62 #include <sys/fs/zfs.h>
63 #include <sys/zfs_ctldir.h>
64 #include <sys/zfs_dir.h>
65 #include <sys/zfs_onexit.h>
67 #include <sys/dsl_scan.h>
68 #include <sharefs/share.h>
69 #include <sys/dmu_objset.h>
70 #include <sys/fm/util.h>
72 #include <linux/miscdevice.h>
74 #include "zfs_namecheck.h"
76 #include "zfs_deleg.h"
77 #include "zfs_comutil.h"
79 kmutex_t zfsdev_state_lock;
80 list_t zfsdev_state_list;
82 extern void zfs_init(void);
83 extern void zfs_fini(void);
85 typedef int zfs_ioc_func_t(zfs_cmd_t *);
86 typedef int zfs_secpolicy_func_t(zfs_cmd_t *, cred_t *);
92 } zfs_ioc_namecheck_t;
95 POOL_CHECK_NONE = 1 << 0,
96 POOL_CHECK_SUSPENDED = 1 << 1,
97 POOL_CHECK_READONLY = 1 << 2
98 } zfs_ioc_poolcheck_t;
100 typedef struct zfs_ioc_vec {
101 zfs_ioc_func_t *zvec_func;
102 zfs_secpolicy_func_t *zvec_secpolicy;
103 zfs_ioc_namecheck_t zvec_namecheck;
104 boolean_t zvec_his_log;
105 zfs_ioc_poolcheck_t zvec_pool_check;
108 /* This array is indexed by zfs_userquota_prop_t */
109 static const char *userquota_perms[] = {
110 ZFS_DELEG_PERM_USERUSED,
111 ZFS_DELEG_PERM_USERQUOTA,
112 ZFS_DELEG_PERM_GROUPUSED,
113 ZFS_DELEG_PERM_GROUPQUOTA,
116 static int zfs_ioc_userspace_upgrade(zfs_cmd_t *zc);
117 static int zfs_check_settable(const char *name, nvpair_t *property,
119 static int zfs_check_clearable(char *dataset, nvlist_t *props,
121 static int zfs_fill_zplprops_root(uint64_t, nvlist_t *, nvlist_t *,
123 int zfs_set_prop_nvlist(const char *, zprop_source_t, nvlist_t *, nvlist_t **);
126 history_str_free(char *buf)
128 kmem_free(buf, HIS_MAX_RECORD_LEN);
132 history_str_get(zfs_cmd_t *zc)
136 if (zc->zc_history == 0)
139 buf = kmem_alloc(HIS_MAX_RECORD_LEN, KM_SLEEP | KM_NODEBUG);
140 if (copyinstr((void *)(uintptr_t)zc->zc_history,
141 buf, HIS_MAX_RECORD_LEN, NULL) != 0) {
142 history_str_free(buf);
146 buf[HIS_MAX_RECORD_LEN -1] = '\0';
152 * Check to see if the named dataset is currently defined as bootable
155 zfs_is_bootfs(const char *name)
159 if (dmu_objset_hold(name, FTAG, &os) == 0) {
161 ret = (dmu_objset_id(os) == spa_bootfs(dmu_objset_spa(os)));
162 dmu_objset_rele(os, FTAG);
169 * zfs_earlier_version
171 * Return non-zero if the spa version is less than requested version.
174 zfs_earlier_version(const char *name, int version)
178 if (spa_open(name, &spa, FTAG) == 0) {
179 if (spa_version(spa) < version) {
180 spa_close(spa, FTAG);
183 spa_close(spa, FTAG);
189 * zpl_earlier_version
191 * Return TRUE if the ZPL version is less than requested version.
194 zpl_earlier_version(const char *name, int version)
197 boolean_t rc = B_TRUE;
199 if (dmu_objset_hold(name, FTAG, &os) == 0) {
202 if (dmu_objset_type(os) != DMU_OST_ZFS) {
203 dmu_objset_rele(os, FTAG);
206 /* XXX reading from non-owned objset */
207 if (zfs_get_zplprop(os, ZFS_PROP_VERSION, &zplversion) == 0)
208 rc = zplversion < version;
209 dmu_objset_rele(os, FTAG);
215 zfs_log_history(zfs_cmd_t *zc)
220 if ((buf = history_str_get(zc)) == NULL)
223 if (spa_open(zc->zc_name, &spa, FTAG) == 0) {
224 if (spa_version(spa) >= SPA_VERSION_ZPOOL_HISTORY)
225 (void) spa_history_log(spa, buf, LOG_CMD_NORMAL);
226 spa_close(spa, FTAG);
228 history_str_free(buf);
232 * Policy for top-level read operations (list pools). Requires no privileges,
233 * and can be used in the local zone, as there is no associated dataset.
237 zfs_secpolicy_none(zfs_cmd_t *zc, cred_t *cr)
243 * Policy for dataset read operations (list children, get statistics). Requires
244 * no privileges, but must be visible in the local zone.
248 zfs_secpolicy_read(zfs_cmd_t *zc, cred_t *cr)
250 if (INGLOBALZONE(curproc) ||
251 zone_dataset_visible(zc->zc_name, NULL))
258 zfs_dozonecheck_impl(const char *dataset, uint64_t zoned, cred_t *cr)
263 * The dataset must be visible by this zone -- check this first
264 * so they don't see EPERM on something they shouldn't know about.
266 if (!INGLOBALZONE(curproc) &&
267 !zone_dataset_visible(dataset, &writable))
270 if (INGLOBALZONE(curproc)) {
272 * If the fs is zoned, only root can access it from the
275 if (secpolicy_zfs(cr) && zoned)
279 * If we are in a local zone, the 'zoned' property must be set.
284 /* must be writable by this zone */
292 zfs_dozonecheck(const char *dataset, cred_t *cr)
296 if (dsl_prop_get_integer(dataset, "zoned", &zoned, NULL))
299 return (zfs_dozonecheck_impl(dataset, zoned, cr));
303 zfs_dozonecheck_ds(const char *dataset, dsl_dataset_t *ds, cred_t *cr)
307 rw_enter(&ds->ds_dir->dd_pool->dp_config_rwlock, RW_READER);
308 if (dsl_prop_get_ds(ds, "zoned", 8, 1, &zoned, NULL)) {
309 rw_exit(&ds->ds_dir->dd_pool->dp_config_rwlock);
312 rw_exit(&ds->ds_dir->dd_pool->dp_config_rwlock);
314 return (zfs_dozonecheck_impl(dataset, zoned, cr));
318 zfs_secpolicy_write_perms(const char *name, const char *perm, cred_t *cr)
322 error = zfs_dozonecheck(name, cr);
324 error = secpolicy_zfs(cr);
326 error = dsl_deleg_access(name, perm, cr);
332 zfs_secpolicy_write_perms_ds(const char *name, dsl_dataset_t *ds,
333 const char *perm, cred_t *cr)
337 error = zfs_dozonecheck_ds(name, ds, cr);
339 error = secpolicy_zfs(cr);
341 error = dsl_deleg_access_impl(ds, perm, cr);
347 * Policy for setting the security label property.
349 * Returns 0 for success, non-zero for access and other errors.
352 zfs_set_slabel_policy(const char *name, char *strval, cred_t *cr)
355 char ds_hexsl[MAXNAMELEN];
356 bslabel_t ds_sl, new_sl;
357 boolean_t new_default = FALSE;
359 int needed_priv = -1;
362 /* First get the existing dataset label. */
363 error = dsl_prop_get(name, zfs_prop_to_name(ZFS_PROP_MLSLABEL),
364 1, sizeof (ds_hexsl), &ds_hexsl, NULL);
368 if (strcasecmp(strval, ZFS_MLSLABEL_DEFAULT) == 0)
371 /* The label must be translatable */
372 if (!new_default && (hexstr_to_label(strval, &new_sl) != 0))
376 * In a non-global zone, disallow attempts to set a label that
377 * doesn't match that of the zone; otherwise no other checks
380 if (!INGLOBALZONE(curproc)) {
381 if (new_default || !blequal(&new_sl, CR_SL(CRED())))
387 * For global-zone datasets (i.e., those whose zoned property is
388 * "off", verify that the specified new label is valid for the
391 if (dsl_prop_get_integer(name,
392 zfs_prop_to_name(ZFS_PROP_ZONED), &zoned, NULL))
395 if (zfs_check_global_label(name, strval) != 0)
400 * If the existing dataset label is nondefault, check if the
401 * dataset is mounted (label cannot be changed while mounted).
402 * Get the zfs_sb_t; if there isn't one, then the dataset isn't
403 * mounted (or isn't a dataset, doesn't exist, ...).
405 if (strcasecmp(ds_hexsl, ZFS_MLSLABEL_DEFAULT) != 0) {
407 static char *setsl_tag = "setsl_tag";
410 * Try to own the dataset; abort if there is any error,
411 * (e.g., already mounted, in use, or other error).
413 error = dmu_objset_own(name, DMU_OST_ZFS, B_TRUE,
418 dmu_objset_disown(os, setsl_tag);
421 needed_priv = PRIV_FILE_DOWNGRADE_SL;
425 if (hexstr_to_label(strval, &new_sl) != 0)
428 if (blstrictdom(&ds_sl, &new_sl))
429 needed_priv = PRIV_FILE_DOWNGRADE_SL;
430 else if (blstrictdom(&new_sl, &ds_sl))
431 needed_priv = PRIV_FILE_UPGRADE_SL;
433 /* dataset currently has a default label */
435 needed_priv = PRIV_FILE_UPGRADE_SL;
439 if (needed_priv != -1)
440 return (PRIV_POLICY(cr, needed_priv, B_FALSE, EPERM, NULL));
444 #endif /* HAVE_MLSLABEL */
448 zfs_secpolicy_setprop(const char *dsname, zfs_prop_t prop, nvpair_t *propval,
454 * Check permissions for special properties.
461 * Disallow setting of 'zoned' from within a local zone.
463 if (!INGLOBALZONE(curproc))
468 if (!INGLOBALZONE(curproc)) {
470 char setpoint[MAXNAMELEN];
472 * Unprivileged users are allowed to modify the
473 * quota on things *under* (ie. contained by)
474 * the thing they own.
476 if (dsl_prop_get_integer(dsname, "zoned", &zoned,
479 if (!zoned || strlen(dsname) <= strlen(setpoint))
484 case ZFS_PROP_MLSLABEL:
485 if (!is_system_labeled())
488 if (nvpair_value_string(propval, &strval) == 0) {
491 err = zfs_set_slabel_policy(dsname, strval, CRED());
498 return (zfs_secpolicy_write_perms(dsname, zfs_prop_to_name(prop), cr));
502 zfs_secpolicy_fsacl(zfs_cmd_t *zc, cred_t *cr)
506 error = zfs_dozonecheck(zc->zc_name, cr);
511 * permission to set permissions will be evaluated later in
512 * dsl_deleg_can_allow()
518 zfs_secpolicy_rollback(zfs_cmd_t *zc, cred_t *cr)
520 return (zfs_secpolicy_write_perms(zc->zc_name,
521 ZFS_DELEG_PERM_ROLLBACK, cr));
525 zfs_secpolicy_send(zfs_cmd_t *zc, cred_t *cr)
534 * Generate the current snapshot name from the given objsetid, then
535 * use that name for the secpolicy/zone checks.
537 cp = strchr(zc->zc_name, '@');
540 error = spa_open(zc->zc_name, &spa, FTAG);
544 dp = spa_get_dsl(spa);
545 rw_enter(&dp->dp_config_rwlock, RW_READER);
546 error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &ds);
547 rw_exit(&dp->dp_config_rwlock);
548 spa_close(spa, FTAG);
552 dsl_dataset_name(ds, zc->zc_name);
554 error = zfs_secpolicy_write_perms_ds(zc->zc_name, ds,
555 ZFS_DELEG_PERM_SEND, cr);
556 dsl_dataset_rele(ds, FTAG);
561 #ifdef HAVE_SMB_SHARE
563 zfs_secpolicy_deleg_share(zfs_cmd_t *zc, cred_t *cr)
568 if ((error = lookupname(zc->zc_value, UIO_SYSSPACE,
569 NO_FOLLOW, NULL, &vp)) != 0)
572 /* Now make sure mntpnt and dataset are ZFS */
574 if (vp->v_vfsp->vfs_fstype != zfsfstype ||
575 (strcmp((char *)refstr_value(vp->v_vfsp->vfs_resource),
576 zc->zc_name) != 0)) {
582 return (dsl_deleg_access(zc->zc_name,
583 ZFS_DELEG_PERM_SHARE, cr));
585 #endif /* HAVE_SMB_SHARE */
588 zfs_secpolicy_share(zfs_cmd_t *zc, cred_t *cr)
590 #ifdef HAVE_SMB_SHARE
591 if (!INGLOBALZONE(curproc))
594 if (secpolicy_nfs(cr) == 0) {
597 return (zfs_secpolicy_deleg_share(zc, cr));
601 #endif /* HAVE_SMB_SHARE */
605 zfs_secpolicy_smb_acl(zfs_cmd_t *zc, cred_t *cr)
607 #ifdef HAVE_SMB_SHARE
608 if (!INGLOBALZONE(curproc))
611 if (secpolicy_smb(cr) == 0) {
614 return (zfs_secpolicy_deleg_share(zc, cr));
618 #endif /* HAVE_SMB_SHARE */
622 zfs_get_parent(const char *datasetname, char *parent, int parentsize)
627 * Remove the @bla or /bla from the end of the name to get the parent.
629 (void) strncpy(parent, datasetname, parentsize);
630 cp = strrchr(parent, '@');
634 cp = strrchr(parent, '/');
644 zfs_secpolicy_destroy_perms(const char *name, cred_t *cr)
648 if ((error = zfs_secpolicy_write_perms(name,
649 ZFS_DELEG_PERM_MOUNT, cr)) != 0)
652 return (zfs_secpolicy_write_perms(name, ZFS_DELEG_PERM_DESTROY, cr));
656 zfs_secpolicy_destroy(zfs_cmd_t *zc, cred_t *cr)
658 return (zfs_secpolicy_destroy_perms(zc->zc_name, cr));
662 * Destroying snapshots with delegated permissions requires
663 * descendent mount and destroy permissions.
664 * Reassemble the full filesystem@snap name so dsl_deleg_access()
665 * can do the correct permission check.
667 * Since this routine is used when doing a recursive destroy of snapshots
668 * and destroying snapshots requires descendent permissions, a successfull
669 * check of the top level snapshot applies to snapshots of all descendent
672 * The target snapshot may not exist when doing a recursive destroy.
673 * In this case fallback to permissions of the parent dataset.
676 zfs_secpolicy_destroy_snaps(zfs_cmd_t *zc, cred_t *cr)
681 dsname = kmem_asprintf("%s@%s", zc->zc_name, zc->zc_value);
683 error = zfs_secpolicy_destroy_perms(dsname, cr);
685 error = zfs_secpolicy_destroy_perms(zc->zc_name, cr);
692 zfs_secpolicy_rename_perms(const char *from, const char *to, cred_t *cr)
694 char parentname[MAXNAMELEN];
697 if ((error = zfs_secpolicy_write_perms(from,
698 ZFS_DELEG_PERM_RENAME, cr)) != 0)
701 if ((error = zfs_secpolicy_write_perms(from,
702 ZFS_DELEG_PERM_MOUNT, cr)) != 0)
705 if ((error = zfs_get_parent(to, parentname,
706 sizeof (parentname))) != 0)
709 if ((error = zfs_secpolicy_write_perms(parentname,
710 ZFS_DELEG_PERM_CREATE, cr)) != 0)
713 if ((error = zfs_secpolicy_write_perms(parentname,
714 ZFS_DELEG_PERM_MOUNT, cr)) != 0)
721 zfs_secpolicy_rename(zfs_cmd_t *zc, cred_t *cr)
723 return (zfs_secpolicy_rename_perms(zc->zc_name, zc->zc_value, cr));
727 zfs_secpolicy_promote(zfs_cmd_t *zc, cred_t *cr)
729 char parentname[MAXNAMELEN];
733 error = zfs_secpolicy_write_perms(zc->zc_name,
734 ZFS_DELEG_PERM_PROMOTE, cr);
738 error = dmu_objset_hold(zc->zc_name, FTAG, &clone);
741 dsl_dataset_t *pclone = NULL;
743 dd = clone->os_dsl_dataset->ds_dir;
745 rw_enter(&dd->dd_pool->dp_config_rwlock, RW_READER);
746 error = dsl_dataset_hold_obj(dd->dd_pool,
747 dd->dd_phys->dd_origin_obj, FTAG, &pclone);
748 rw_exit(&dd->dd_pool->dp_config_rwlock);
750 dmu_objset_rele(clone, FTAG);
754 error = zfs_secpolicy_write_perms(zc->zc_name,
755 ZFS_DELEG_PERM_MOUNT, cr);
757 dsl_dataset_name(pclone, parentname);
758 dmu_objset_rele(clone, FTAG);
759 dsl_dataset_rele(pclone, FTAG);
761 error = zfs_secpolicy_write_perms(parentname,
762 ZFS_DELEG_PERM_PROMOTE, cr);
768 zfs_secpolicy_receive(zfs_cmd_t *zc, cred_t *cr)
772 if ((error = zfs_secpolicy_write_perms(zc->zc_name,
773 ZFS_DELEG_PERM_RECEIVE, cr)) != 0)
776 if ((error = zfs_secpolicy_write_perms(zc->zc_name,
777 ZFS_DELEG_PERM_MOUNT, cr)) != 0)
780 return (zfs_secpolicy_write_perms(zc->zc_name,
781 ZFS_DELEG_PERM_CREATE, cr));
785 zfs_secpolicy_snapshot_perms(const char *name, cred_t *cr)
787 return (zfs_secpolicy_write_perms(name,
788 ZFS_DELEG_PERM_SNAPSHOT, cr));
792 zfs_secpolicy_snapshot(zfs_cmd_t *zc, cred_t *cr)
795 return (zfs_secpolicy_snapshot_perms(zc->zc_name, cr));
799 zfs_secpolicy_create(zfs_cmd_t *zc, cred_t *cr)
801 char parentname[MAXNAMELEN];
804 if ((error = zfs_get_parent(zc->zc_name, parentname,
805 sizeof (parentname))) != 0)
808 if (zc->zc_value[0] != '\0') {
809 if ((error = zfs_secpolicy_write_perms(zc->zc_value,
810 ZFS_DELEG_PERM_CLONE, cr)) != 0)
814 if ((error = zfs_secpolicy_write_perms(parentname,
815 ZFS_DELEG_PERM_CREATE, cr)) != 0)
818 error = zfs_secpolicy_write_perms(parentname,
819 ZFS_DELEG_PERM_MOUNT, cr);
825 * Policy for pool operations - create/destroy pools, add vdevs, etc. Requires
826 * SYS_CONFIG privilege, which is not available in a local zone.
830 zfs_secpolicy_config(zfs_cmd_t *zc, cred_t *cr)
832 if (secpolicy_sys_config(cr, B_FALSE) != 0)
839 * Policy for object to name lookups.
843 zfs_secpolicy_diff(zfs_cmd_t *zc, cred_t *cr)
847 if ((error = secpolicy_sys_config(cr, B_FALSE)) == 0)
850 error = zfs_secpolicy_write_perms(zc->zc_name, ZFS_DELEG_PERM_DIFF, cr);
855 * Policy for fault injection. Requires all privileges.
859 zfs_secpolicy_inject(zfs_cmd_t *zc, cred_t *cr)
861 return (secpolicy_zinject(cr));
865 zfs_secpolicy_inherit(zfs_cmd_t *zc, cred_t *cr)
867 zfs_prop_t prop = zfs_name_to_prop(zc->zc_value);
869 if (prop == ZPROP_INVAL) {
870 if (!zfs_prop_user(zc->zc_value))
872 return (zfs_secpolicy_write_perms(zc->zc_name,
873 ZFS_DELEG_PERM_USERPROP, cr));
875 return (zfs_secpolicy_setprop(zc->zc_name, prop,
881 zfs_secpolicy_userspace_one(zfs_cmd_t *zc, cred_t *cr)
883 int err = zfs_secpolicy_read(zc, cr);
887 if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS)
890 if (zc->zc_value[0] == 0) {
892 * They are asking about a posix uid/gid. If it's
893 * themself, allow it.
895 if (zc->zc_objset_type == ZFS_PROP_USERUSED ||
896 zc->zc_objset_type == ZFS_PROP_USERQUOTA) {
897 if (zc->zc_guid == crgetuid(cr))
900 if (groupmember(zc->zc_guid, cr))
905 return (zfs_secpolicy_write_perms(zc->zc_name,
906 userquota_perms[zc->zc_objset_type], cr));
910 zfs_secpolicy_userspace_many(zfs_cmd_t *zc, cred_t *cr)
912 int err = zfs_secpolicy_read(zc, cr);
916 if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS)
919 return (zfs_secpolicy_write_perms(zc->zc_name,
920 userquota_perms[zc->zc_objset_type], cr));
924 zfs_secpolicy_userspace_upgrade(zfs_cmd_t *zc, cred_t *cr)
926 return (zfs_secpolicy_setprop(zc->zc_name, ZFS_PROP_VERSION,
931 zfs_secpolicy_hold(zfs_cmd_t *zc, cred_t *cr)
933 return (zfs_secpolicy_write_perms(zc->zc_name,
934 ZFS_DELEG_PERM_HOLD, cr));
938 zfs_secpolicy_release(zfs_cmd_t *zc, cred_t *cr)
940 return (zfs_secpolicy_write_perms(zc->zc_name,
941 ZFS_DELEG_PERM_RELEASE, cr));
945 * Policy for allowing temporary snapshots to be taken or released
948 zfs_secpolicy_tmp_snapshot(zfs_cmd_t *zc, cred_t *cr)
951 * A temporary snapshot is the same as a snapshot,
952 * hold, destroy and release all rolled into one.
953 * Delegated diff alone is sufficient that we allow this.
957 if ((error = zfs_secpolicy_write_perms(zc->zc_name,
958 ZFS_DELEG_PERM_DIFF, cr)) == 0)
961 error = zfs_secpolicy_snapshot(zc, cr);
963 error = zfs_secpolicy_hold(zc, cr);
965 error = zfs_secpolicy_release(zc, cr);
967 error = zfs_secpolicy_destroy(zc, cr);
972 * Returns the nvlist as specified by the user in the zfs_cmd_t.
975 get_nvlist(uint64_t nvl, uint64_t size, int iflag, nvlist_t **nvp)
979 nvlist_t *list = NULL;
982 * Read in and unpack the user-supplied nvlist.
987 packed = kmem_alloc(size, KM_SLEEP | KM_NODEBUG);
989 if ((error = ddi_copyin((void *)(uintptr_t)nvl, packed, size,
991 kmem_free(packed, size);
995 if ((error = nvlist_unpack(packed, size, &list, 0)) != 0) {
996 kmem_free(packed, size);
1000 kmem_free(packed, size);
1007 fit_error_list(zfs_cmd_t *zc, nvlist_t **errors)
1011 VERIFY(nvlist_size(*errors, &size, NV_ENCODE_NATIVE) == 0);
1013 if (size > zc->zc_nvlist_dst_size) {
1014 nvpair_t *more_errors;
1017 if (zc->zc_nvlist_dst_size < 1024)
1020 VERIFY(nvlist_add_int32(*errors, ZPROP_N_MORE_ERRORS, 0) == 0);
1021 more_errors = nvlist_prev_nvpair(*errors, NULL);
1024 nvpair_t *pair = nvlist_prev_nvpair(*errors,
1026 VERIFY(nvlist_remove_nvpair(*errors, pair) == 0);
1028 VERIFY(nvlist_size(*errors, &size,
1029 NV_ENCODE_NATIVE) == 0);
1030 } while (size > zc->zc_nvlist_dst_size);
1032 VERIFY(nvlist_remove_nvpair(*errors, more_errors) == 0);
1033 VERIFY(nvlist_add_int32(*errors, ZPROP_N_MORE_ERRORS, n) == 0);
1034 ASSERT(nvlist_size(*errors, &size, NV_ENCODE_NATIVE) == 0);
1035 ASSERT(size <= zc->zc_nvlist_dst_size);
1042 put_nvlist(zfs_cmd_t *zc, nvlist_t *nvl)
1044 char *packed = NULL;
1048 VERIFY(nvlist_size(nvl, &size, NV_ENCODE_NATIVE) == 0);
1050 if (size > zc->zc_nvlist_dst_size) {
1053 packed = kmem_alloc(size, KM_SLEEP | KM_NODEBUG);
1054 VERIFY(nvlist_pack(nvl, &packed, &size, NV_ENCODE_NATIVE,
1056 if (ddi_copyout(packed, (void *)(uintptr_t)zc->zc_nvlist_dst,
1057 size, zc->zc_iflags) != 0)
1059 kmem_free(packed, size);
1062 zc->zc_nvlist_dst_size = size;
1067 get_zfs_sb(const char *dsname, zfs_sb_t **zsbp)
1072 error = dmu_objset_hold(dsname, FTAG, &os);
1075 if (dmu_objset_type(os) != DMU_OST_ZFS) {
1076 dmu_objset_rele(os, FTAG);
1080 mutex_enter(&os->os_user_ptr_lock);
1081 *zsbp = dmu_objset_get_user(os);
1082 if (*zsbp && (*zsbp)->z_sb) {
1083 atomic_inc(&((*zsbp)->z_sb->s_active));
1087 mutex_exit(&os->os_user_ptr_lock);
1088 dmu_objset_rele(os, FTAG);
1093 * Find a zfs_sb_t for a mounted filesystem, or create our own, in which
1094 * case its z_sb will be NULL, and it will be opened as the owner.
1097 zfs_sb_hold(const char *name, void *tag, zfs_sb_t **zsbp, boolean_t writer)
1101 if (get_zfs_sb(name, zsbp) != 0)
1102 error = zfs_sb_create(name, zsbp);
1104 rrw_enter(&(*zsbp)->z_teardown_lock, (writer) ? RW_WRITER :
1106 if ((*zsbp)->z_unmounted) {
1108 * XXX we could probably try again, since the unmounting
1109 * thread should be just about to disassociate the
1110 * objset from the zfsvfs.
1112 rrw_exit(&(*zsbp)->z_teardown_lock, tag);
1120 zfs_sb_rele(zfs_sb_t *zsb, void *tag)
1122 rrw_exit(&zsb->z_teardown_lock, tag);
1125 deactivate_super(zsb->z_sb);
1127 dmu_objset_disown(zsb->z_os, zsb);
1133 zfs_ioc_pool_create(zfs_cmd_t *zc)
1136 nvlist_t *config, *props = NULL;
1137 nvlist_t *rootprops = NULL;
1138 nvlist_t *zplprops = NULL;
1141 if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
1142 zc->zc_iflags, &config)))
1145 if (zc->zc_nvlist_src_size != 0 && (error =
1146 get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
1147 zc->zc_iflags, &props))) {
1148 nvlist_free(config);
1153 nvlist_t *nvl = NULL;
1154 uint64_t version = SPA_VERSION;
1156 (void) nvlist_lookup_uint64(props,
1157 zpool_prop_to_name(ZPOOL_PROP_VERSION), &version);
1158 if (version < SPA_VERSION_INITIAL || version > SPA_VERSION) {
1160 goto pool_props_bad;
1162 (void) nvlist_lookup_nvlist(props, ZPOOL_ROOTFS_PROPS, &nvl);
1164 error = nvlist_dup(nvl, &rootprops, KM_SLEEP);
1166 nvlist_free(config);
1170 (void) nvlist_remove_all(props, ZPOOL_ROOTFS_PROPS);
1172 VERIFY(nvlist_alloc(&zplprops, NV_UNIQUE_NAME, KM_SLEEP) == 0);
1173 error = zfs_fill_zplprops_root(version, rootprops,
1176 goto pool_props_bad;
1179 buf = history_str_get(zc);
1181 error = spa_create(zc->zc_name, config, props, buf, zplprops);
1184 * Set the remaining root properties
1186 if (!error && (error = zfs_set_prop_nvlist(zc->zc_name,
1187 ZPROP_SRC_LOCAL, rootprops, NULL)) != 0)
1188 (void) spa_destroy(zc->zc_name);
1191 history_str_free(buf);
1194 nvlist_free(rootprops);
1195 nvlist_free(zplprops);
1196 nvlist_free(config);
1203 zfs_ioc_pool_destroy(zfs_cmd_t *zc)
1206 zfs_log_history(zc);
1207 error = spa_destroy(zc->zc_name);
1209 zvol_remove_minors(zc->zc_name);
1214 zfs_ioc_pool_import(zfs_cmd_t *zc)
1216 nvlist_t *config, *props = NULL;
1220 if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
1221 zc->zc_iflags, &config)) != 0)
1224 if (zc->zc_nvlist_src_size != 0 && (error =
1225 get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
1226 zc->zc_iflags, &props))) {
1227 nvlist_free(config);
1231 if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &guid) != 0 ||
1232 guid != zc->zc_guid)
1235 error = spa_import(zc->zc_name, config, props, zc->zc_cookie);
1237 if (zc->zc_nvlist_dst != 0) {
1240 if ((err = put_nvlist(zc, config)) != 0)
1245 zvol_create_minors(zc->zc_name);
1247 nvlist_free(config);
1256 zfs_ioc_pool_export(zfs_cmd_t *zc)
1259 boolean_t force = (boolean_t)zc->zc_cookie;
1260 boolean_t hardforce = (boolean_t)zc->zc_guid;
1262 zfs_log_history(zc);
1263 error = spa_export(zc->zc_name, NULL, force, hardforce);
1265 zvol_remove_minors(zc->zc_name);
1270 zfs_ioc_pool_configs(zfs_cmd_t *zc)
1275 if ((configs = spa_all_configs(&zc->zc_cookie)) == NULL)
1278 error = put_nvlist(zc, configs);
1280 nvlist_free(configs);
1286 zfs_ioc_pool_stats(zfs_cmd_t *zc)
1292 error = spa_get_stats(zc->zc_name, &config, zc->zc_value,
1293 sizeof (zc->zc_value));
1295 if (config != NULL) {
1296 ret = put_nvlist(zc, config);
1297 nvlist_free(config);
1300 * The config may be present even if 'error' is non-zero.
1301 * In this case we return success, and preserve the real errno
1304 zc->zc_cookie = error;
1313 * Try to import the given pool, returning pool stats as appropriate so that
1314 * user land knows which devices are available and overall pool health.
1317 zfs_ioc_pool_tryimport(zfs_cmd_t *zc)
1319 nvlist_t *tryconfig, *config;
1322 if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
1323 zc->zc_iflags, &tryconfig)) != 0)
1326 config = spa_tryimport(tryconfig);
1328 nvlist_free(tryconfig);
1333 error = put_nvlist(zc, config);
1334 nvlist_free(config);
1341 * zc_name name of the pool
1342 * zc_cookie scan func (pool_scan_func_t)
1345 zfs_ioc_pool_scan(zfs_cmd_t *zc)
1350 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
1353 if (zc->zc_cookie == POOL_SCAN_NONE)
1354 error = spa_scan_stop(spa);
1356 error = spa_scan(spa, zc->zc_cookie);
1358 spa_close(spa, FTAG);
1364 zfs_ioc_pool_freeze(zfs_cmd_t *zc)
1369 error = spa_open(zc->zc_name, &spa, FTAG);
1372 spa_close(spa, FTAG);
1378 zfs_ioc_pool_upgrade(zfs_cmd_t *zc)
1383 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
1386 if (zc->zc_cookie < spa_version(spa) || zc->zc_cookie > SPA_VERSION) {
1387 spa_close(spa, FTAG);
1391 spa_upgrade(spa, zc->zc_cookie);
1392 spa_close(spa, FTAG);
1398 zfs_ioc_pool_get_history(zfs_cmd_t *zc)
1405 if ((size = zc->zc_history_len) == 0)
1408 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
1411 if (spa_version(spa) < SPA_VERSION_ZPOOL_HISTORY) {
1412 spa_close(spa, FTAG);
1416 hist_buf = vmem_alloc(size, KM_SLEEP);
1417 if ((error = spa_history_get(spa, &zc->zc_history_offset,
1418 &zc->zc_history_len, hist_buf)) == 0) {
1419 error = ddi_copyout(hist_buf,
1420 (void *)(uintptr_t)zc->zc_history,
1421 zc->zc_history_len, zc->zc_iflags);
1424 spa_close(spa, FTAG);
1425 vmem_free(hist_buf, size);
1430 zfs_ioc_dsobj_to_dsname(zfs_cmd_t *zc)
1434 if ((error = dsl_dsobj_to_dsname(zc->zc_name,zc->zc_obj,zc->zc_value)))
1442 * zc_name name of filesystem
1443 * zc_obj object to find
1446 * zc_value name of object
1449 zfs_ioc_obj_to_path(zfs_cmd_t *zc)
1454 /* XXX reading from objset not owned */
1455 if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os)) != 0)
1457 if (dmu_objset_type(os) != DMU_OST_ZFS) {
1458 dmu_objset_rele(os, FTAG);
1461 error = zfs_obj_to_path(os, zc->zc_obj, zc->zc_value,
1462 sizeof (zc->zc_value));
1463 dmu_objset_rele(os, FTAG);
1470 * zc_name name of filesystem
1471 * zc_obj object to find
1474 * zc_stat stats on object
1475 * zc_value path to object
1478 zfs_ioc_obj_to_stats(zfs_cmd_t *zc)
1483 /* XXX reading from objset not owned */
1484 if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os)) != 0)
1486 if (dmu_objset_type(os) != DMU_OST_ZFS) {
1487 dmu_objset_rele(os, FTAG);
1490 error = zfs_obj_to_stats(os, zc->zc_obj, &zc->zc_stat, zc->zc_value,
1491 sizeof (zc->zc_value));
1492 dmu_objset_rele(os, FTAG);
1498 zfs_ioc_vdev_add(zfs_cmd_t *zc)
1502 nvlist_t *config, **l2cache, **spares;
1503 uint_t nl2cache = 0, nspares = 0;
1505 error = spa_open(zc->zc_name, &spa, FTAG);
1509 error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
1510 zc->zc_iflags, &config);
1511 (void) nvlist_lookup_nvlist_array(config, ZPOOL_CONFIG_L2CACHE,
1512 &l2cache, &nl2cache);
1514 (void) nvlist_lookup_nvlist_array(config, ZPOOL_CONFIG_SPARES,
1518 * A root pool with concatenated devices is not supported.
1519 * Thus, can not add a device to a root pool.
1521 * Intent log device can not be added to a rootpool because
1522 * during mountroot, zil is replayed, a seperated log device
1523 * can not be accessed during the mountroot time.
1525 * l2cache and spare devices are ok to be added to a rootpool.
1527 if (spa_bootfs(spa) != 0 && nl2cache == 0 && nspares == 0) {
1528 nvlist_free(config);
1529 spa_close(spa, FTAG);
1534 error = spa_vdev_add(spa, config);
1535 nvlist_free(config);
1537 spa_close(spa, FTAG);
1543 * zc_name name of the pool
1544 * zc_nvlist_conf nvlist of devices to remove
1545 * zc_cookie to stop the remove?
1548 zfs_ioc_vdev_remove(zfs_cmd_t *zc)
1553 error = spa_open(zc->zc_name, &spa, FTAG);
1556 error = spa_vdev_remove(spa, zc->zc_guid, B_FALSE);
1557 spa_close(spa, FTAG);
1562 zfs_ioc_vdev_set_state(zfs_cmd_t *zc)
1566 vdev_state_t newstate = VDEV_STATE_UNKNOWN;
1568 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
1570 switch (zc->zc_cookie) {
1571 case VDEV_STATE_ONLINE:
1572 error = vdev_online(spa, zc->zc_guid, zc->zc_obj, &newstate);
1575 case VDEV_STATE_OFFLINE:
1576 error = vdev_offline(spa, zc->zc_guid, zc->zc_obj);
1579 case VDEV_STATE_FAULTED:
1580 if (zc->zc_obj != VDEV_AUX_ERR_EXCEEDED &&
1581 zc->zc_obj != VDEV_AUX_EXTERNAL)
1582 zc->zc_obj = VDEV_AUX_ERR_EXCEEDED;
1584 error = vdev_fault(spa, zc->zc_guid, zc->zc_obj);
1587 case VDEV_STATE_DEGRADED:
1588 if (zc->zc_obj != VDEV_AUX_ERR_EXCEEDED &&
1589 zc->zc_obj != VDEV_AUX_EXTERNAL)
1590 zc->zc_obj = VDEV_AUX_ERR_EXCEEDED;
1592 error = vdev_degrade(spa, zc->zc_guid, zc->zc_obj);
1598 zc->zc_cookie = newstate;
1599 spa_close(spa, FTAG);
1604 zfs_ioc_vdev_attach(zfs_cmd_t *zc)
1607 int replacing = zc->zc_cookie;
1611 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
1614 if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
1615 zc->zc_iflags, &config)) == 0) {
1616 error = spa_vdev_attach(spa, zc->zc_guid, config, replacing);
1617 nvlist_free(config);
1620 spa_close(spa, FTAG);
1625 zfs_ioc_vdev_detach(zfs_cmd_t *zc)
1630 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
1633 error = spa_vdev_detach(spa, zc->zc_guid, 0, B_FALSE);
1635 spa_close(spa, FTAG);
1640 zfs_ioc_vdev_split(zfs_cmd_t *zc)
1643 nvlist_t *config, *props = NULL;
1645 boolean_t exp = !!(zc->zc_cookie & ZPOOL_EXPORT_AFTER_SPLIT);
1647 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
1650 if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
1651 zc->zc_iflags, &config))) {
1652 spa_close(spa, FTAG);
1656 if (zc->zc_nvlist_src_size != 0 && (error =
1657 get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
1658 zc->zc_iflags, &props))) {
1659 spa_close(spa, FTAG);
1660 nvlist_free(config);
1664 error = spa_vdev_split_mirror(spa, zc->zc_string, config, props, exp);
1666 spa_close(spa, FTAG);
1668 nvlist_free(config);
1675 zfs_ioc_vdev_setpath(zfs_cmd_t *zc)
1678 char *path = zc->zc_value;
1679 uint64_t guid = zc->zc_guid;
1682 error = spa_open(zc->zc_name, &spa, FTAG);
1686 error = spa_vdev_setpath(spa, guid, path);
1687 spa_close(spa, FTAG);
1692 zfs_ioc_vdev_setfru(zfs_cmd_t *zc)
1695 char *fru = zc->zc_value;
1696 uint64_t guid = zc->zc_guid;
1699 error = spa_open(zc->zc_name, &spa, FTAG);
1703 error = spa_vdev_setfru(spa, guid, fru);
1704 spa_close(spa, FTAG);
1709 zfs_ioc_objset_stats_impl(zfs_cmd_t *zc, objset_t *os)
1714 dmu_objset_fast_stat(os, &zc->zc_objset_stats);
1716 if (zc->zc_nvlist_dst != 0 &&
1717 (error = dsl_prop_get_all(os, &nv)) == 0) {
1718 dmu_objset_stats(os, nv);
1720 * NB: zvol_get_stats() will read the objset contents,
1721 * which we aren't supposed to do with a
1722 * DS_MODE_USER hold, because it could be
1723 * inconsistent. So this is a bit of a workaround...
1724 * XXX reading with out owning
1726 if (!zc->zc_objset_stats.dds_inconsistent) {
1727 if (dmu_objset_type(os) == DMU_OST_ZVOL)
1728 error = zvol_get_stats(os, nv);
1731 error = put_nvlist(zc, nv);
1740 * zc_name name of filesystem
1741 * zc_nvlist_dst_size size of buffer for property nvlist
1744 * zc_objset_stats stats
1745 * zc_nvlist_dst property nvlist
1746 * zc_nvlist_dst_size size of property nvlist
1749 zfs_ioc_objset_stats(zfs_cmd_t *zc)
1751 objset_t *os = NULL;
1754 if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os)))
1757 error = zfs_ioc_objset_stats_impl(zc, os);
1759 dmu_objset_rele(os, FTAG);
1766 * zc_name name of filesystem
1767 * zc_nvlist_dst_size size of buffer for property nvlist
1770 * zc_nvlist_dst received property nvlist
1771 * zc_nvlist_dst_size size of received property nvlist
1773 * Gets received properties (distinct from local properties on or after
1774 * SPA_VERSION_RECVD_PROPS) for callers who want to differentiate received from
1775 * local property values.
1778 zfs_ioc_objset_recvd_props(zfs_cmd_t *zc)
1780 objset_t *os = NULL;
1784 if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os)))
1788 * Without this check, we would return local property values if the
1789 * caller has not already received properties on or after
1790 * SPA_VERSION_RECVD_PROPS.
1792 if (!dsl_prop_get_hasrecvd(os)) {
1793 dmu_objset_rele(os, FTAG);
1797 if (zc->zc_nvlist_dst != 0 &&
1798 (error = dsl_prop_get_received(os, &nv)) == 0) {
1799 error = put_nvlist(zc, nv);
1803 dmu_objset_rele(os, FTAG);
1808 nvl_add_zplprop(objset_t *os, nvlist_t *props, zfs_prop_t prop)
1814 * zfs_get_zplprop() will either find a value or give us
1815 * the default value (if there is one).
1817 if ((error = zfs_get_zplprop(os, prop, &value)) != 0)
1819 VERIFY(nvlist_add_uint64(props, zfs_prop_to_name(prop), value) == 0);
1825 * zc_name name of filesystem
1826 * zc_nvlist_dst_size size of buffer for zpl property nvlist
1829 * zc_nvlist_dst zpl property nvlist
1830 * zc_nvlist_dst_size size of zpl property nvlist
1833 zfs_ioc_objset_zplprops(zfs_cmd_t *zc)
1838 /* XXX reading without owning */
1839 if ((err = dmu_objset_hold(zc->zc_name, FTAG, &os)))
1842 dmu_objset_fast_stat(os, &zc->zc_objset_stats);
1845 * NB: nvl_add_zplprop() will read the objset contents,
1846 * which we aren't supposed to do with a DS_MODE_USER
1847 * hold, because it could be inconsistent.
1849 if (zc->zc_nvlist_dst != 0 &&
1850 !zc->zc_objset_stats.dds_inconsistent &&
1851 dmu_objset_type(os) == DMU_OST_ZFS) {
1854 VERIFY(nvlist_alloc(&nv, NV_UNIQUE_NAME, KM_SLEEP) == 0);
1855 if ((err = nvl_add_zplprop(os, nv, ZFS_PROP_VERSION)) == 0 &&
1856 (err = nvl_add_zplprop(os, nv, ZFS_PROP_NORMALIZE)) == 0 &&
1857 (err = nvl_add_zplprop(os, nv, ZFS_PROP_UTF8ONLY)) == 0 &&
1858 (err = nvl_add_zplprop(os, nv, ZFS_PROP_CASE)) == 0)
1859 err = put_nvlist(zc, nv);
1864 dmu_objset_rele(os, FTAG);
1869 dataset_name_hidden(const char *name)
1872 * Skip over datasets that are not visible in this zone,
1873 * internal datasets (which have a $ in their name), and
1874 * temporary datasets (which have a % in their name).
1876 if (strchr(name, '$') != NULL)
1878 if (strchr(name, '%') != NULL)
1880 if (!INGLOBALZONE(curproc) && !zone_dataset_visible(name, NULL))
1887 * zc_name name of filesystem
1888 * zc_cookie zap cursor
1889 * zc_nvlist_dst_size size of buffer for property nvlist
1892 * zc_name name of next filesystem
1893 * zc_cookie zap cursor
1894 * zc_objset_stats stats
1895 * zc_nvlist_dst property nvlist
1896 * zc_nvlist_dst_size size of property nvlist
1899 zfs_ioc_dataset_list_next(zfs_cmd_t *zc)
1904 size_t orig_len = strlen(zc->zc_name);
1907 if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os))) {
1908 if (error == ENOENT)
1913 p = strrchr(zc->zc_name, '/');
1914 if (p == NULL || p[1] != '\0')
1915 (void) strlcat(zc->zc_name, "/", sizeof (zc->zc_name));
1916 p = zc->zc_name + strlen(zc->zc_name);
1919 * Pre-fetch the datasets. dmu_objset_prefetch() always returns 0
1920 * but is not declared void because its called by dmu_objset_find().
1922 if (zc->zc_cookie == 0) {
1923 uint64_t cookie = 0;
1924 int len = sizeof (zc->zc_name) - (p - zc->zc_name);
1926 while (dmu_dir_list_next(os, len, p, NULL, &cookie) == 0)
1927 (void) dmu_objset_prefetch(p, NULL);
1931 error = dmu_dir_list_next(os,
1932 sizeof (zc->zc_name) - (p - zc->zc_name), p,
1933 NULL, &zc->zc_cookie);
1934 if (error == ENOENT)
1936 } while (error == 0 && dataset_name_hidden(zc->zc_name) &&
1937 !(zc->zc_iflags & FKIOCTL));
1938 dmu_objset_rele(os, FTAG);
1941 * If it's an internal dataset (ie. with a '$' in its name),
1942 * don't try to get stats for it, otherwise we'll return ENOENT.
1944 if (error == 0 && strchr(zc->zc_name, '$') == NULL) {
1945 error = zfs_ioc_objset_stats(zc); /* fill in the stats */
1946 if (error == ENOENT) {
1947 /* We lost a race with destroy, get the next one. */
1948 zc->zc_name[orig_len] = '\0';
1957 * zc_name name of filesystem
1958 * zc_cookie zap cursor
1959 * zc_nvlist_dst_size size of buffer for property nvlist
1962 * zc_name name of next snapshot
1963 * zc_objset_stats stats
1964 * zc_nvlist_dst property nvlist
1965 * zc_nvlist_dst_size size of property nvlist
1968 zfs_ioc_snapshot_list_next(zfs_cmd_t *zc)
1974 if (zc->zc_cookie == 0)
1975 (void) dmu_objset_find(zc->zc_name, dmu_objset_prefetch,
1976 NULL, DS_FIND_SNAPSHOTS);
1978 error = dmu_objset_hold(zc->zc_name, FTAG, &os);
1980 return (error == ENOENT ? ESRCH : error);
1983 * A dataset name of maximum length cannot have any snapshots,
1984 * so exit immediately.
1986 if (strlcat(zc->zc_name, "@", sizeof (zc->zc_name)) >= MAXNAMELEN) {
1987 dmu_objset_rele(os, FTAG);
1991 error = dmu_snapshot_list_next(os,
1992 sizeof (zc->zc_name) - strlen(zc->zc_name),
1993 zc->zc_name + strlen(zc->zc_name), &zc->zc_obj, &zc->zc_cookie,
1998 dsl_pool_t *dp = os->os_dsl_dataset->ds_dir->dd_pool;
2001 * Since we probably don't have a hold on this snapshot,
2002 * it's possible that the objsetid could have been destroyed
2003 * and reused for a new objset. It's OK if this happens during
2004 * a zfs send operation, since the new createtxg will be
2005 * beyond the range we're interested in.
2007 rw_enter(&dp->dp_config_rwlock, RW_READER);
2008 error = dsl_dataset_hold_obj(dp, zc->zc_obj, FTAG, &ds);
2009 rw_exit(&dp->dp_config_rwlock);
2011 if (error == ENOENT) {
2012 /* Racing with destroy, get the next one. */
2013 *strchr(zc->zc_name, '@') = '\0';
2014 dmu_objset_rele(os, FTAG);
2020 error = dmu_objset_from_ds(ds, &ossnap);
2022 error = zfs_ioc_objset_stats_impl(zc, ossnap);
2023 dsl_dataset_rele(ds, FTAG);
2025 } else if (error == ENOENT) {
2029 dmu_objset_rele(os, FTAG);
2030 /* if we failed, undo the @ that we tacked on to zc_name */
2032 *strchr(zc->zc_name, '@') = '\0';
2037 zfs_prop_set_userquota(const char *dsname, nvpair_t *pair)
2039 const char *propname = nvpair_name(pair);
2041 unsigned int vallen;
2044 zfs_userquota_prop_t type;
2050 if (nvpair_type(pair) == DATA_TYPE_NVLIST) {
2052 VERIFY(nvpair_value_nvlist(pair, &attrs) == 0);
2053 if (nvlist_lookup_nvpair(attrs, ZPROP_VALUE,
2059 * A correctly constructed propname is encoded as
2060 * userquota@<rid>-<domain>.
2062 if ((dash = strchr(propname, '-')) == NULL ||
2063 nvpair_value_uint64_array(pair, &valary, &vallen) != 0 ||
2072 err = zfs_sb_hold(dsname, FTAG, &zsb, B_FALSE);
2074 err = zfs_set_userquota(zsb, type, domain, rid, quota);
2075 zfs_sb_rele(zsb, FTAG);
2082 * If the named property is one that has a special function to set its value,
2083 * return 0 on success and a positive error code on failure; otherwise if it is
2084 * not one of the special properties handled by this function, return -1.
2086 * XXX: It would be better for callers of the property interface if we handled
2087 * these special cases in dsl_prop.c (in the dsl layer).
2090 zfs_prop_set_special(const char *dsname, zprop_source_t source,
2093 const char *propname = nvpair_name(pair);
2094 zfs_prop_t prop = zfs_name_to_prop(propname);
2098 if (prop == ZPROP_INVAL) {
2099 if (zfs_prop_userquota(propname))
2100 return (zfs_prop_set_userquota(dsname, pair));
2104 if (nvpair_type(pair) == DATA_TYPE_NVLIST) {
2106 VERIFY(nvpair_value_nvlist(pair, &attrs) == 0);
2107 VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE,
2111 if (zfs_prop_get_type(prop) == PROP_TYPE_STRING)
2114 VERIFY(0 == nvpair_value_uint64(pair, &intval));
2117 case ZFS_PROP_QUOTA:
2118 err = dsl_dir_set_quota(dsname, source, intval);
2120 case ZFS_PROP_REFQUOTA:
2121 err = dsl_dataset_set_quota(dsname, source, intval);
2123 case ZFS_PROP_RESERVATION:
2124 err = dsl_dir_set_reservation(dsname, source, intval);
2126 case ZFS_PROP_REFRESERVATION:
2127 err = dsl_dataset_set_reservation(dsname, source, intval);
2129 case ZFS_PROP_VOLSIZE:
2130 err = zvol_set_volsize(dsname, intval);
2132 case ZFS_PROP_VERSION:
2136 if ((err = zfs_sb_hold(dsname, FTAG, &zsb, B_TRUE)) != 0)
2139 err = zfs_set_version(zsb, intval);
2140 zfs_sb_rele(zsb, FTAG);
2142 if (err == 0 && intval >= ZPL_VERSION_USERSPACE) {
2145 zc = kmem_zalloc(sizeof (zfs_cmd_t),
2146 KM_SLEEP | KM_NODEBUG);
2147 (void) strcpy(zc->zc_name, dsname);
2148 (void) zfs_ioc_userspace_upgrade(zc);
2149 kmem_free(zc, sizeof (zfs_cmd_t));
2162 * This function is best effort. If it fails to set any of the given properties,
2163 * it continues to set as many as it can and returns the first error
2164 * encountered. If the caller provides a non-NULL errlist, it also gives the
2165 * complete list of names of all the properties it failed to set along with the
2166 * corresponding error numbers. The caller is responsible for freeing the
2169 * If every property is set successfully, zero is returned and the list pointed
2170 * at by errlist is NULL.
2173 zfs_set_prop_nvlist(const char *dsname, zprop_source_t source, nvlist_t *nvl,
2181 nvlist_t *genericnvl;
2185 VERIFY(nvlist_alloc(&genericnvl, NV_UNIQUE_NAME, KM_SLEEP) == 0);
2186 VERIFY(nvlist_alloc(&errors, NV_UNIQUE_NAME, KM_SLEEP) == 0);
2187 VERIFY(nvlist_alloc(&retrynvl, NV_UNIQUE_NAME, KM_SLEEP) == 0);
2191 while ((pair = nvlist_next_nvpair(nvl, pair)) != NULL) {
2192 const char *propname = nvpair_name(pair);
2193 zfs_prop_t prop = zfs_name_to_prop(propname);
2196 /* decode the property value */
2198 if (nvpair_type(pair) == DATA_TYPE_NVLIST) {
2200 VERIFY(nvpair_value_nvlist(pair, &attrs) == 0);
2201 if (nvlist_lookup_nvpair(attrs, ZPROP_VALUE,
2206 /* Validate value type */
2207 if (err == 0 && prop == ZPROP_INVAL) {
2208 if (zfs_prop_user(propname)) {
2209 if (nvpair_type(propval) != DATA_TYPE_STRING)
2211 } else if (zfs_prop_userquota(propname)) {
2212 if (nvpair_type(propval) !=
2213 DATA_TYPE_UINT64_ARRAY)
2216 } else if (err == 0) {
2217 if (nvpair_type(propval) == DATA_TYPE_STRING) {
2218 if (zfs_prop_get_type(prop) != PROP_TYPE_STRING)
2220 } else if (nvpair_type(propval) == DATA_TYPE_UINT64) {
2223 VERIFY(nvpair_value_uint64(propval,
2226 switch (zfs_prop_get_type(prop)) {
2227 case PROP_TYPE_NUMBER:
2229 case PROP_TYPE_STRING:
2232 case PROP_TYPE_INDEX:
2233 if (zfs_prop_index_to_string(prop,
2234 intval, &unused) != 0)
2239 "unknown property type");
2246 /* Validate permissions */
2248 err = zfs_check_settable(dsname, pair, CRED());
2251 err = zfs_prop_set_special(dsname, source, pair);
2254 * For better performance we build up a list of
2255 * properties to set in a single transaction.
2257 err = nvlist_add_nvpair(genericnvl, pair);
2258 } else if (err != 0 && nvl != retrynvl) {
2260 * This may be a spurious error caused by
2261 * receiving quota and reservation out of order.
2262 * Try again in a second pass.
2264 err = nvlist_add_nvpair(retrynvl, pair);
2269 VERIFY(nvlist_add_int32(errors, propname, err) == 0);
2272 if (nvl != retrynvl && !nvlist_empty(retrynvl)) {
2277 if (!nvlist_empty(genericnvl) &&
2278 dsl_props_set(dsname, source, genericnvl) != 0) {
2280 * If this fails, we still want to set as many properties as we
2281 * can, so try setting them individually.
2284 while ((pair = nvlist_next_nvpair(genericnvl, pair)) != NULL) {
2285 const char *propname = nvpair_name(pair);
2289 if (nvpair_type(pair) == DATA_TYPE_NVLIST) {
2291 VERIFY(nvpair_value_nvlist(pair, &attrs) == 0);
2292 VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE,
2296 if (nvpair_type(propval) == DATA_TYPE_STRING) {
2297 VERIFY(nvpair_value_string(propval,
2299 err = dsl_prop_set(dsname, propname, source, 1,
2300 strlen(strval) + 1, strval);
2302 VERIFY(nvpair_value_uint64(propval,
2304 err = dsl_prop_set(dsname, propname, source, 8,
2309 VERIFY(nvlist_add_int32(errors, propname,
2314 nvlist_free(genericnvl);
2315 nvlist_free(retrynvl);
2317 if ((pair = nvlist_next_nvpair(errors, NULL)) == NULL) {
2318 nvlist_free(errors);
2321 VERIFY(nvpair_value_int32(pair, &rv) == 0);
2324 if (errlist == NULL)
2325 nvlist_free(errors);
2333 * Check that all the properties are valid user properties.
2336 zfs_check_userprops(char *fsname, nvlist_t *nvl)
2338 nvpair_t *pair = NULL;
2341 while ((pair = nvlist_next_nvpair(nvl, pair)) != NULL) {
2342 const char *propname = nvpair_name(pair);
2345 if (!zfs_prop_user(propname) ||
2346 nvpair_type(pair) != DATA_TYPE_STRING)
2349 if ((error = zfs_secpolicy_write_perms(fsname,
2350 ZFS_DELEG_PERM_USERPROP, CRED())))
2353 if (strlen(propname) >= ZAP_MAXNAMELEN)
2354 return (ENAMETOOLONG);
2356 VERIFY(nvpair_value_string(pair, &valstr) == 0);
2357 if (strlen(valstr) >= ZAP_MAXVALUELEN)
2364 props_skip(nvlist_t *props, nvlist_t *skipped, nvlist_t **newprops)
2368 VERIFY(nvlist_alloc(newprops, NV_UNIQUE_NAME, KM_SLEEP) == 0);
2371 while ((pair = nvlist_next_nvpair(props, pair)) != NULL) {
2372 if (nvlist_exists(skipped, nvpair_name(pair)))
2375 VERIFY(nvlist_add_nvpair(*newprops, pair) == 0);
2380 clear_received_props(objset_t *os, const char *fs, nvlist_t *props,
2384 nvlist_t *cleared_props = NULL;
2385 props_skip(props, skipped, &cleared_props);
2386 if (!nvlist_empty(cleared_props)) {
2388 * Acts on local properties until the dataset has received
2389 * properties at least once on or after SPA_VERSION_RECVD_PROPS.
2391 zprop_source_t flags = (ZPROP_SRC_NONE |
2392 (dsl_prop_get_hasrecvd(os) ? ZPROP_SRC_RECEIVED : 0));
2393 err = zfs_set_prop_nvlist(fs, flags, cleared_props, NULL);
2395 nvlist_free(cleared_props);
2401 * zc_name name of filesystem
2402 * zc_value name of property to set
2403 * zc_nvlist_src{_size} nvlist of properties to apply
2404 * zc_cookie received properties flag
2407 * zc_nvlist_dst{_size} error for each unapplied received property
2410 zfs_ioc_set_prop(zfs_cmd_t *zc)
2413 boolean_t received = zc->zc_cookie;
2414 zprop_source_t source = (received ? ZPROP_SRC_RECEIVED :
2416 nvlist_t *errors = NULL;
2419 if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
2420 zc->zc_iflags, &nvl)) != 0)
2424 nvlist_t *origprops;
2427 if (dmu_objset_hold(zc->zc_name, FTAG, &os) == 0) {
2428 if (dsl_prop_get_received(os, &origprops) == 0) {
2429 (void) clear_received_props(os,
2430 zc->zc_name, origprops, nvl);
2431 nvlist_free(origprops);
2434 dsl_prop_set_hasrecvd(os);
2435 dmu_objset_rele(os, FTAG);
2439 error = zfs_set_prop_nvlist(zc->zc_name, source, nvl, &errors);
2441 if (zc->zc_nvlist_dst != 0 && errors != NULL) {
2442 (void) put_nvlist(zc, errors);
2445 nvlist_free(errors);
2452 * zc_name name of filesystem
2453 * zc_value name of property to inherit
2454 * zc_cookie revert to received value if TRUE
2459 zfs_ioc_inherit_prop(zfs_cmd_t *zc)
2461 const char *propname = zc->zc_value;
2462 zfs_prop_t prop = zfs_name_to_prop(propname);
2463 boolean_t received = zc->zc_cookie;
2464 zprop_source_t source = (received
2465 ? ZPROP_SRC_NONE /* revert to received value, if any */
2466 : ZPROP_SRC_INHERITED); /* explicitly inherit */
2475 * zfs_prop_set_special() expects properties in the form of an
2476 * nvpair with type info.
2478 if (prop == ZPROP_INVAL) {
2479 if (!zfs_prop_user(propname))
2482 type = PROP_TYPE_STRING;
2483 } else if (prop == ZFS_PROP_VOLSIZE ||
2484 prop == ZFS_PROP_VERSION) {
2487 type = zfs_prop_get_type(prop);
2490 VERIFY(nvlist_alloc(&dummy, NV_UNIQUE_NAME, KM_SLEEP) == 0);
2493 case PROP_TYPE_STRING:
2494 VERIFY(0 == nvlist_add_string(dummy, propname, ""));
2496 case PROP_TYPE_NUMBER:
2497 case PROP_TYPE_INDEX:
2498 VERIFY(0 == nvlist_add_uint64(dummy, propname, 0));
2505 pair = nvlist_next_nvpair(dummy, NULL);
2506 err = zfs_prop_set_special(zc->zc_name, source, pair);
2509 return (err); /* special property already handled */
2512 * Only check this in the non-received case. We want to allow
2513 * 'inherit -S' to revert non-inheritable properties like quota
2514 * and reservation to the received or default values even though
2515 * they are not considered inheritable.
2517 if (prop != ZPROP_INVAL && !zfs_prop_inheritable(prop))
2521 /* the property name has been validated by zfs_secpolicy_inherit() */
2522 return (dsl_prop_set(zc->zc_name, zc->zc_value, source, 0, 0, NULL));
2526 zfs_ioc_pool_set_props(zfs_cmd_t *zc)
2533 if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
2534 zc->zc_iflags, &props)))
2538 * If the only property is the configfile, then just do a spa_lookup()
2539 * to handle the faulted case.
2541 pair = nvlist_next_nvpair(props, NULL);
2542 if (pair != NULL && strcmp(nvpair_name(pair),
2543 zpool_prop_to_name(ZPOOL_PROP_CACHEFILE)) == 0 &&
2544 nvlist_next_nvpair(props, pair) == NULL) {
2545 mutex_enter(&spa_namespace_lock);
2546 if ((spa = spa_lookup(zc->zc_name)) != NULL) {
2547 spa_configfile_set(spa, props, B_FALSE);
2548 spa_config_sync(spa, B_FALSE, B_TRUE);
2550 mutex_exit(&spa_namespace_lock);
2557 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) {
2562 error = spa_prop_set(spa, props);
2565 spa_close(spa, FTAG);
2571 zfs_ioc_pool_get_props(zfs_cmd_t *zc)
2575 nvlist_t *nvp = NULL;
2577 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) {
2579 * If the pool is faulted, there may be properties we can still
2580 * get (such as altroot and cachefile), so attempt to get them
2583 mutex_enter(&spa_namespace_lock);
2584 if ((spa = spa_lookup(zc->zc_name)) != NULL)
2585 error = spa_prop_get(spa, &nvp);
2586 mutex_exit(&spa_namespace_lock);
2588 error = spa_prop_get(spa, &nvp);
2589 spa_close(spa, FTAG);
2592 if (error == 0 && zc->zc_nvlist_dst != 0)
2593 error = put_nvlist(zc, nvp);
2603 * zc_name name of volume
2608 zfs_ioc_create_minor(zfs_cmd_t *zc)
2610 return (zvol_create_minor(zc->zc_name));
2615 * zc_name name of volume
2620 zfs_ioc_remove_minor(zfs_cmd_t *zc)
2622 return (zvol_remove_minor(zc->zc_name));
2627 * zc_name name of filesystem
2628 * zc_nvlist_src{_size} nvlist of delegated permissions
2629 * zc_perm_action allow/unallow flag
2634 zfs_ioc_set_fsacl(zfs_cmd_t *zc)
2637 nvlist_t *fsaclnv = NULL;
2639 if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
2640 zc->zc_iflags, &fsaclnv)) != 0)
2644 * Verify nvlist is constructed correctly
2646 if ((error = zfs_deleg_verify_nvlist(fsaclnv)) != 0) {
2647 nvlist_free(fsaclnv);
2652 * If we don't have PRIV_SYS_MOUNT, then validate
2653 * that user is allowed to hand out each permission in
2657 error = secpolicy_zfs(CRED());
2659 if (zc->zc_perm_action == B_FALSE) {
2660 error = dsl_deleg_can_allow(zc->zc_name,
2663 error = dsl_deleg_can_unallow(zc->zc_name,
2669 error = dsl_deleg_set(zc->zc_name, fsaclnv, zc->zc_perm_action);
2671 nvlist_free(fsaclnv);
2677 * zc_name name of filesystem
2680 * zc_nvlist_src{_size} nvlist of delegated permissions
2683 zfs_ioc_get_fsacl(zfs_cmd_t *zc)
2688 if ((error = dsl_deleg_get(zc->zc_name, &nvp)) == 0) {
2689 error = put_nvlist(zc, nvp);
2698 zfs_create_cb(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx)
2700 zfs_creat_t *zct = arg;
2702 zfs_create_fs(os, cr, zct->zct_zplprops, tx);
2705 #define ZFS_PROP_UNDEFINED ((uint64_t)-1)
2709 * createprops list of properties requested by creator
2710 * default_zplver zpl version to use if unspecified in createprops
2711 * fuids_ok fuids allowed in this version of the spa?
2712 * os parent objset pointer (NULL if root fs)
2715 * zplprops values for the zplprops we attach to the master node object
2716 * is_ci true if requested file system will be purely case-insensitive
2718 * Determine the settings for utf8only, normalization and
2719 * casesensitivity. Specific values may have been requested by the
2720 * creator and/or we can inherit values from the parent dataset. If
2721 * the file system is of too early a vintage, a creator can not
2722 * request settings for these properties, even if the requested
2723 * setting is the default value. We don't actually want to create dsl
2724 * properties for these, so remove them from the source nvlist after
2728 zfs_fill_zplprops_impl(objset_t *os, uint64_t zplver,
2729 boolean_t fuids_ok, boolean_t sa_ok, nvlist_t *createprops,
2730 nvlist_t *zplprops, boolean_t *is_ci)
2732 uint64_t sense = ZFS_PROP_UNDEFINED;
2733 uint64_t norm = ZFS_PROP_UNDEFINED;
2734 uint64_t u8 = ZFS_PROP_UNDEFINED;
2737 ASSERT(zplprops != NULL);
2740 * Pull out creator prop choices, if any.
2743 (void) nvlist_lookup_uint64(createprops,
2744 zfs_prop_to_name(ZFS_PROP_VERSION), &zplver);
2745 (void) nvlist_lookup_uint64(createprops,
2746 zfs_prop_to_name(ZFS_PROP_NORMALIZE), &norm);
2747 (void) nvlist_remove_all(createprops,
2748 zfs_prop_to_name(ZFS_PROP_NORMALIZE));
2749 (void) nvlist_lookup_uint64(createprops,
2750 zfs_prop_to_name(ZFS_PROP_UTF8ONLY), &u8);
2751 (void) nvlist_remove_all(createprops,
2752 zfs_prop_to_name(ZFS_PROP_UTF8ONLY));
2753 (void) nvlist_lookup_uint64(createprops,
2754 zfs_prop_to_name(ZFS_PROP_CASE), &sense);
2755 (void) nvlist_remove_all(createprops,
2756 zfs_prop_to_name(ZFS_PROP_CASE));
2760 * If the zpl version requested is whacky or the file system
2761 * or pool is version is too "young" to support normalization
2762 * and the creator tried to set a value for one of the props,
2765 if ((zplver < ZPL_VERSION_INITIAL || zplver > ZPL_VERSION) ||
2766 (zplver >= ZPL_VERSION_FUID && !fuids_ok) ||
2767 (zplver >= ZPL_VERSION_SA && !sa_ok) ||
2768 (zplver < ZPL_VERSION_NORMALIZATION &&
2769 (norm != ZFS_PROP_UNDEFINED || u8 != ZFS_PROP_UNDEFINED ||
2770 sense != ZFS_PROP_UNDEFINED)))
2774 * Put the version in the zplprops
2776 VERIFY(nvlist_add_uint64(zplprops,
2777 zfs_prop_to_name(ZFS_PROP_VERSION), zplver) == 0);
2779 if (norm == ZFS_PROP_UNDEFINED &&
2780 (error = zfs_get_zplprop(os, ZFS_PROP_NORMALIZE, &norm)) != 0)
2782 VERIFY(nvlist_add_uint64(zplprops,
2783 zfs_prop_to_name(ZFS_PROP_NORMALIZE), norm) == 0);
2786 * If we're normalizing, names must always be valid UTF-8 strings.
2790 if (u8 == ZFS_PROP_UNDEFINED &&
2791 (error = zfs_get_zplprop(os, ZFS_PROP_UTF8ONLY, &u8)) != 0)
2793 VERIFY(nvlist_add_uint64(zplprops,
2794 zfs_prop_to_name(ZFS_PROP_UTF8ONLY), u8) == 0);
2796 if (sense == ZFS_PROP_UNDEFINED &&
2797 (error = zfs_get_zplprop(os, ZFS_PROP_CASE, &sense)) != 0)
2799 VERIFY(nvlist_add_uint64(zplprops,
2800 zfs_prop_to_name(ZFS_PROP_CASE), sense) == 0);
2803 *is_ci = (sense == ZFS_CASE_INSENSITIVE);
2809 zfs_fill_zplprops(const char *dataset, nvlist_t *createprops,
2810 nvlist_t *zplprops, boolean_t *is_ci)
2812 boolean_t fuids_ok, sa_ok;
2813 uint64_t zplver = ZPL_VERSION;
2814 objset_t *os = NULL;
2815 char parentname[MAXNAMELEN];
2821 (void) strlcpy(parentname, dataset, sizeof (parentname));
2822 cp = strrchr(parentname, '/');
2826 if ((error = spa_open(dataset, &spa, FTAG)) != 0)
2829 spa_vers = spa_version(spa);
2830 spa_close(spa, FTAG);
2832 zplver = zfs_zpl_version_map(spa_vers);
2833 fuids_ok = (zplver >= ZPL_VERSION_FUID);
2834 sa_ok = (zplver >= ZPL_VERSION_SA);
2837 * Open parent object set so we can inherit zplprop values.
2839 if ((error = dmu_objset_hold(parentname, FTAG, &os)) != 0)
2842 error = zfs_fill_zplprops_impl(os, zplver, fuids_ok, sa_ok, createprops,
2844 dmu_objset_rele(os, FTAG);
2849 zfs_fill_zplprops_root(uint64_t spa_vers, nvlist_t *createprops,
2850 nvlist_t *zplprops, boolean_t *is_ci)
2854 uint64_t zplver = ZPL_VERSION;
2857 zplver = zfs_zpl_version_map(spa_vers);
2858 fuids_ok = (zplver >= ZPL_VERSION_FUID);
2859 sa_ok = (zplver >= ZPL_VERSION_SA);
2861 error = zfs_fill_zplprops_impl(NULL, zplver, fuids_ok, sa_ok,
2862 createprops, zplprops, is_ci);
2868 * zc_objset_type type of objset to create (fs vs zvol)
2869 * zc_name name of new objset
2870 * zc_value name of snapshot to clone from (may be empty)
2871 * zc_nvlist_src{_size} nvlist of properties to apply
2876 zfs_ioc_create(zfs_cmd_t *zc)
2881 nvlist_t *nvprops = NULL;
2882 void (*cbfunc)(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx);
2883 dmu_objset_type_t type = zc->zc_objset_type;
2888 cbfunc = zfs_create_cb;
2892 cbfunc = zvol_create_cb;
2899 if (strchr(zc->zc_name, '@') ||
2900 strchr(zc->zc_name, '%'))
2903 if (zc->zc_nvlist_src != 0 &&
2904 (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
2905 zc->zc_iflags, &nvprops)) != 0)
2908 zct.zct_zplprops = NULL;
2909 zct.zct_props = nvprops;
2911 if (zc->zc_value[0] != '\0') {
2913 * We're creating a clone of an existing snapshot.
2915 zc->zc_value[sizeof (zc->zc_value) - 1] = '\0';
2916 if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0) {
2917 nvlist_free(nvprops);
2921 error = dmu_objset_hold(zc->zc_value, FTAG, &clone);
2923 nvlist_free(nvprops);
2927 error = dmu_objset_clone(zc->zc_name, dmu_objset_ds(clone), 0);
2928 dmu_objset_rele(clone, FTAG);
2930 nvlist_free(nvprops);
2934 boolean_t is_insensitive = B_FALSE;
2936 if (cbfunc == NULL) {
2937 nvlist_free(nvprops);
2941 if (type == DMU_OST_ZVOL) {
2942 uint64_t volsize, volblocksize;
2944 if (nvprops == NULL ||
2945 nvlist_lookup_uint64(nvprops,
2946 zfs_prop_to_name(ZFS_PROP_VOLSIZE),
2948 nvlist_free(nvprops);
2952 if ((error = nvlist_lookup_uint64(nvprops,
2953 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE),
2954 &volblocksize)) != 0 && error != ENOENT) {
2955 nvlist_free(nvprops);
2960 volblocksize = zfs_prop_default_numeric(
2961 ZFS_PROP_VOLBLOCKSIZE);
2963 if ((error = zvol_check_volblocksize(
2964 volblocksize)) != 0 ||
2965 (error = zvol_check_volsize(volsize,
2966 volblocksize)) != 0) {
2967 nvlist_free(nvprops);
2970 } else if (type == DMU_OST_ZFS) {
2974 * We have to have normalization and
2975 * case-folding flags correct when we do the
2976 * file system creation, so go figure them out
2979 VERIFY(nvlist_alloc(&zct.zct_zplprops,
2980 NV_UNIQUE_NAME, KM_SLEEP) == 0);
2981 error = zfs_fill_zplprops(zc->zc_name, nvprops,
2982 zct.zct_zplprops, &is_insensitive);
2984 nvlist_free(nvprops);
2985 nvlist_free(zct.zct_zplprops);
2989 error = dmu_objset_create(zc->zc_name, type,
2990 is_insensitive ? DS_FLAG_CI_DATASET : 0, cbfunc, &zct);
2991 nvlist_free(zct.zct_zplprops);
2995 * It would be nice to do this atomically.
2998 error = zfs_set_prop_nvlist(zc->zc_name, ZPROP_SRC_LOCAL,
3001 (void) dmu_objset_destroy(zc->zc_name, B_FALSE);
3003 nvlist_free(nvprops);
3009 * zc_name name of filesystem
3010 * zc_value short name of snapshot
3011 * zc_cookie recursive flag
3012 * zc_nvlist_src[_size] property list
3015 * zc_value short snapname (i.e. part after the '@')
3018 zfs_ioc_snapshot(zfs_cmd_t *zc)
3020 nvlist_t *nvprops = NULL;
3022 boolean_t recursive = zc->zc_cookie;
3024 if (snapshot_namecheck(zc->zc_value, NULL, NULL) != 0)
3027 if (zc->zc_nvlist_src != 0 &&
3028 (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
3029 zc->zc_iflags, &nvprops)) != 0)
3032 error = zfs_check_userprops(zc->zc_name, nvprops);
3036 if (!nvlist_empty(nvprops) &&
3037 zfs_earlier_version(zc->zc_name, SPA_VERSION_SNAP_PROPS)) {
3042 error = dmu_objset_snapshot(zc->zc_name, zc->zc_value, NULL,
3043 nvprops, recursive, B_FALSE, -1);
3046 nvlist_free(nvprops);
3052 * name dataset name, or when 'arg == NULL' the full snapshot name
3053 * arg short snapshot name (i.e. part after the '@')
3056 zfs_unmount_snap(const char *name, void *arg)
3058 zfs_sb_t *zsb = NULL;
3066 dsname = strdup(name);
3067 snapname = strdup(arg);
3069 ptr = strchr(name, '@');
3071 dsname = strdup(name);
3072 dsname[ptr - name] = '\0';
3073 snapname = strdup(ptr + 1);
3079 fullname = kmem_asprintf("%s@%s", dsname, snapname);
3081 error = zfs_sb_hold(dsname, FTAG, &zsb, B_FALSE);
3083 error = zfsctl_unmount_snapshot(zsb, fullname, MNT_FORCE);
3084 zfs_sb_rele(zsb, FTAG);
3086 /* Allow ENOENT for consistency with upstream */
3087 if (error == ENOENT)
3100 * zc_name name of filesystem
3101 * zc_value short name of snapshot
3102 * zc_defer_destroy mark for deferred destroy
3107 zfs_ioc_destroy_snaps(zfs_cmd_t *zc)
3111 if (snapshot_namecheck(zc->zc_value, NULL, NULL) != 0)
3113 err = dmu_objset_find(zc->zc_name,
3114 zfs_unmount_snap, zc->zc_value, DS_FIND_CHILDREN);
3117 return (dmu_snapshots_destroy(zc->zc_name, zc->zc_value,
3118 zc->zc_defer_destroy));
3123 * zc_name name of dataset to destroy
3124 * zc_objset_type type of objset
3125 * zc_defer_destroy mark for deferred destroy
3130 zfs_ioc_destroy(zfs_cmd_t *zc)
3133 if (strchr(zc->zc_name, '@') && zc->zc_objset_type == DMU_OST_ZFS) {
3134 err = zfs_unmount_snap(zc->zc_name, NULL);
3139 err = dmu_objset_destroy(zc->zc_name, zc->zc_defer_destroy);
3140 if (zc->zc_objset_type == DMU_OST_ZVOL && err == 0)
3141 (void) zvol_remove_minor(zc->zc_name);
3147 * zc_name name of dataset to rollback (to most recent snapshot)
3152 zfs_ioc_rollback(zfs_cmd_t *zc)
3154 dsl_dataset_t *ds, *clone;
3159 error = dsl_dataset_hold(zc->zc_name, FTAG, &ds);
3163 /* must not be a snapshot */
3164 if (dsl_dataset_is_snapshot(ds)) {
3165 dsl_dataset_rele(ds, FTAG);
3169 /* must have a most recent snapshot */
3170 if (ds->ds_phys->ds_prev_snap_txg < TXG_INITIAL) {
3171 dsl_dataset_rele(ds, FTAG);
3176 * Create clone of most recent snapshot.
3178 clone_name = kmem_asprintf("%s/%%rollback", zc->zc_name);
3179 error = dmu_objset_clone(clone_name, ds->ds_prev, DS_FLAG_INCONSISTENT);
3183 error = dsl_dataset_own(clone_name, B_TRUE, FTAG, &clone);
3190 if (get_zfs_sb(zc->zc_name, &zsb) == 0) {
3191 error = zfs_suspend_fs(zsb);
3195 if (dsl_dataset_tryown(ds, B_FALSE, FTAG)) {
3196 error = dsl_dataset_clone_swap(clone, ds,
3198 dsl_dataset_disown(ds, FTAG);
3203 resume_err = zfs_resume_fs(zsb, zc->zc_name);
3204 error = error ? error : resume_err;
3206 deactivate_super(zsb->z_sb);
3208 if (dsl_dataset_tryown(ds, B_FALSE, FTAG)) {
3209 error = dsl_dataset_clone_swap(clone, ds, B_TRUE);
3210 dsl_dataset_disown(ds, FTAG);
3218 * Destroy clone (which also closes it).
3220 (void) dsl_dataset_destroy(clone, FTAG, B_FALSE);
3223 strfree(clone_name);
3225 dsl_dataset_rele(ds, FTAG);
3231 * zc_name old name of dataset
3232 * zc_value new name of dataset
3233 * zc_cookie recursive flag (only valid for snapshots)
3238 zfs_ioc_rename(zfs_cmd_t *zc)
3240 boolean_t recursive = zc->zc_cookie & 1;
3243 zc->zc_value[sizeof (zc->zc_value) - 1] = '\0';
3244 if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 ||
3245 strchr(zc->zc_value, '%'))
3249 * Unmount snapshot unless we're doing a recursive rename,
3250 * in which case the dataset code figures out which snapshots
3253 if (!recursive && strchr(zc->zc_name, '@') != NULL &&
3254 zc->zc_objset_type == DMU_OST_ZFS) {
3255 err = zfs_unmount_snap(zc->zc_name, NULL);
3260 err = dmu_objset_rename(zc->zc_name, zc->zc_value, recursive);
3261 if ((err == 0) && (zc->zc_objset_type == DMU_OST_ZVOL)) {
3262 (void) zvol_remove_minor(zc->zc_name);
3263 (void) zvol_create_minor(zc->zc_value);
3270 zfs_check_settable(const char *dsname, nvpair_t *pair, cred_t *cr)
3272 const char *propname = nvpair_name(pair);
3273 boolean_t issnap = (strchr(dsname, '@') != NULL);
3274 zfs_prop_t prop = zfs_name_to_prop(propname);
3278 if (prop == ZPROP_INVAL) {
3279 if (zfs_prop_user(propname)) {
3280 if ((err = zfs_secpolicy_write_perms(dsname,
3281 ZFS_DELEG_PERM_USERPROP, cr)))
3286 if (!issnap && zfs_prop_userquota(propname)) {
3287 const char *perm = NULL;
3288 const char *uq_prefix =
3289 zfs_userquota_prop_prefixes[ZFS_PROP_USERQUOTA];
3290 const char *gq_prefix =
3291 zfs_userquota_prop_prefixes[ZFS_PROP_GROUPQUOTA];
3293 if (strncmp(propname, uq_prefix,
3294 strlen(uq_prefix)) == 0) {
3295 perm = ZFS_DELEG_PERM_USERQUOTA;
3296 } else if (strncmp(propname, gq_prefix,
3297 strlen(gq_prefix)) == 0) {
3298 perm = ZFS_DELEG_PERM_GROUPQUOTA;
3300 /* USERUSED and GROUPUSED are read-only */
3304 if ((err = zfs_secpolicy_write_perms(dsname, perm, cr)))
3315 if (nvpair_type(pair) == DATA_TYPE_NVLIST) {
3317 * dsl_prop_get_all_impl() returns properties in this
3321 VERIFY(nvpair_value_nvlist(pair, &attrs) == 0);
3322 VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE,
3327 * Check that this value is valid for this pool version
3330 case ZFS_PROP_COMPRESSION:
3332 * If the user specified gzip compression, make sure
3333 * the SPA supports it. We ignore any errors here since
3334 * we'll catch them later.
3336 if (nvpair_type(pair) == DATA_TYPE_UINT64 &&
3337 nvpair_value_uint64(pair, &intval) == 0) {
3338 if (intval >= ZIO_COMPRESS_GZIP_1 &&
3339 intval <= ZIO_COMPRESS_GZIP_9 &&
3340 zfs_earlier_version(dsname,
3341 SPA_VERSION_GZIP_COMPRESSION)) {
3345 if (intval == ZIO_COMPRESS_ZLE &&
3346 zfs_earlier_version(dsname,
3347 SPA_VERSION_ZLE_COMPRESSION))
3351 * If this is a bootable dataset then
3352 * verify that the compression algorithm
3353 * is supported for booting. We must return
3354 * something other than ENOTSUP since it
3355 * implies a downrev pool version.
3357 if (zfs_is_bootfs(dsname) &&
3358 !BOOTFS_COMPRESS_VALID(intval)) {
3364 case ZFS_PROP_COPIES:
3365 if (zfs_earlier_version(dsname, SPA_VERSION_DITTO_BLOCKS))
3369 case ZFS_PROP_DEDUP:
3370 if (zfs_earlier_version(dsname, SPA_VERSION_DEDUP))
3374 case ZFS_PROP_SHARESMB:
3375 if (zpl_earlier_version(dsname, ZPL_VERSION_FUID))
3379 case ZFS_PROP_ACLINHERIT:
3380 if (nvpair_type(pair) == DATA_TYPE_UINT64 &&
3381 nvpair_value_uint64(pair, &intval) == 0) {
3382 if (intval == ZFS_ACL_PASSTHROUGH_X &&
3383 zfs_earlier_version(dsname,
3384 SPA_VERSION_PASSTHROUGH_X))
3392 return (zfs_secpolicy_setprop(dsname, prop, pair, CRED()));
3396 * Removes properties from the given props list that fail permission checks
3397 * needed to clear them and to restore them in case of a receive error. For each
3398 * property, make sure we have both set and inherit permissions.
3400 * Returns the first error encountered if any permission checks fail. If the
3401 * caller provides a non-NULL errlist, it also gives the complete list of names
3402 * of all the properties that failed a permission check along with the
3403 * corresponding error numbers. The caller is responsible for freeing the
3406 * If every property checks out successfully, zero is returned and the list
3407 * pointed at by errlist is NULL.
3410 zfs_check_clearable(char *dataset, nvlist_t *props, nvlist_t **errlist)
3413 nvpair_t *pair, *next_pair;
3420 VERIFY(nvlist_alloc(&errors, NV_UNIQUE_NAME, KM_SLEEP) == 0);
3422 zc = kmem_alloc(sizeof (zfs_cmd_t), KM_SLEEP | KM_NODEBUG);
3423 (void) strcpy(zc->zc_name, dataset);
3424 pair = nvlist_next_nvpair(props, NULL);
3425 while (pair != NULL) {
3426 next_pair = nvlist_next_nvpair(props, pair);
3428 (void) strcpy(zc->zc_value, nvpair_name(pair));
3429 if ((err = zfs_check_settable(dataset, pair, CRED())) != 0 ||
3430 (err = zfs_secpolicy_inherit(zc, CRED())) != 0) {
3431 VERIFY(nvlist_remove_nvpair(props, pair) == 0);
3432 VERIFY(nvlist_add_int32(errors,
3433 zc->zc_value, err) == 0);
3437 kmem_free(zc, sizeof (zfs_cmd_t));
3439 if ((pair = nvlist_next_nvpair(errors, NULL)) == NULL) {
3440 nvlist_free(errors);
3443 VERIFY(nvpair_value_int32(pair, &rv) == 0);
3446 if (errlist == NULL)
3447 nvlist_free(errors);
3455 propval_equals(nvpair_t *p1, nvpair_t *p2)
3457 if (nvpair_type(p1) == DATA_TYPE_NVLIST) {
3458 /* dsl_prop_get_all_impl() format */
3460 VERIFY(nvpair_value_nvlist(p1, &attrs) == 0);
3461 VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE,
3465 if (nvpair_type(p2) == DATA_TYPE_NVLIST) {
3467 VERIFY(nvpair_value_nvlist(p2, &attrs) == 0);
3468 VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE,
3472 if (nvpair_type(p1) != nvpair_type(p2))
3475 if (nvpair_type(p1) == DATA_TYPE_STRING) {
3476 char *valstr1, *valstr2;
3478 VERIFY(nvpair_value_string(p1, (char **)&valstr1) == 0);
3479 VERIFY(nvpair_value_string(p2, (char **)&valstr2) == 0);
3480 return (strcmp(valstr1, valstr2) == 0);
3482 uint64_t intval1, intval2;
3484 VERIFY(nvpair_value_uint64(p1, &intval1) == 0);
3485 VERIFY(nvpair_value_uint64(p2, &intval2) == 0);
3486 return (intval1 == intval2);
3491 * Remove properties from props if they are not going to change (as determined
3492 * by comparison with origprops). Remove them from origprops as well, since we
3493 * do not need to clear or restore properties that won't change.
3496 props_reduce(nvlist_t *props, nvlist_t *origprops)
3498 nvpair_t *pair, *next_pair;
3500 if (origprops == NULL)
3501 return; /* all props need to be received */
3503 pair = nvlist_next_nvpair(props, NULL);
3504 while (pair != NULL) {
3505 const char *propname = nvpair_name(pair);
3508 next_pair = nvlist_next_nvpair(props, pair);
3510 if ((nvlist_lookup_nvpair(origprops, propname,
3511 &match) != 0) || !propval_equals(pair, match))
3512 goto next; /* need to set received value */
3514 /* don't clear the existing received value */
3515 (void) nvlist_remove_nvpair(origprops, match);
3516 /* don't bother receiving the property */
3517 (void) nvlist_remove_nvpair(props, pair);
3524 static boolean_t zfs_ioc_recv_inject_err;
3529 * zc_name name of containing filesystem
3530 * zc_nvlist_src{_size} nvlist of properties to apply
3531 * zc_value name of snapshot to create
3532 * zc_string name of clone origin (if DRR_FLAG_CLONE)
3533 * zc_cookie file descriptor to recv from
3534 * zc_begin_record the BEGIN record of the stream (not byteswapped)
3535 * zc_guid force flag
3536 * zc_cleanup_fd cleanup-on-exit file descriptor
3537 * zc_action_handle handle for this guid/ds mapping (or zero on first call)
3540 * zc_cookie number of bytes read
3541 * zc_nvlist_dst{_size} error for each unapplied received property
3542 * zc_obj zprop_errflags_t
3543 * zc_action_handle handle for this guid/ds mapping
3546 zfs_ioc_recv(zfs_cmd_t *zc)
3550 dmu_recv_cookie_t drc;
3551 boolean_t force = (boolean_t)zc->zc_guid;
3554 int props_error = 0;
3557 nvlist_t *props = NULL; /* sent properties */
3558 nvlist_t *origprops = NULL; /* existing properties */
3559 objset_t *origin = NULL;
3561 char tofs[ZFS_MAXNAMELEN];
3562 boolean_t first_recvd_props = B_FALSE;
3564 if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 ||
3565 strchr(zc->zc_value, '@') == NULL ||
3566 strchr(zc->zc_value, '%'))
3569 (void) strcpy(tofs, zc->zc_value);
3570 tosnap = strchr(tofs, '@');
3573 if (zc->zc_nvlist_src != 0 &&
3574 (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size,
3575 zc->zc_iflags, &props)) != 0)
3585 VERIFY(nvlist_alloc(&errors, NV_UNIQUE_NAME, KM_SLEEP) == 0);
3587 if (props && dmu_objset_hold(tofs, FTAG, &os) == 0) {
3588 if ((spa_version(os->os_spa) >= SPA_VERSION_RECVD_PROPS) &&
3589 !dsl_prop_get_hasrecvd(os)) {
3590 first_recvd_props = B_TRUE;
3594 * If new received properties are supplied, they are to
3595 * completely replace the existing received properties, so stash
3596 * away the existing ones.
3598 if (dsl_prop_get_received(os, &origprops) == 0) {
3599 nvlist_t *errlist = NULL;
3601 * Don't bother writing a property if its value won't
3602 * change (and avoid the unnecessary security checks).
3604 * The first receive after SPA_VERSION_RECVD_PROPS is a
3605 * special case where we blow away all local properties
3608 if (!first_recvd_props)
3609 props_reduce(props, origprops);
3610 if (zfs_check_clearable(tofs, origprops,
3612 (void) nvlist_merge(errors, errlist, 0);
3613 nvlist_free(errlist);
3616 dmu_objset_rele(os, FTAG);
3619 if (zc->zc_string[0]) {
3620 error = dmu_objset_hold(zc->zc_string, FTAG, &origin);
3625 error = dmu_recv_begin(tofs, tosnap, zc->zc_top_ds,
3626 &zc->zc_begin_record, force, origin, &drc);
3628 dmu_objset_rele(origin, FTAG);
3633 * Set properties before we receive the stream so that they are applied
3634 * to the new data. Note that we must call dmu_recv_stream() if
3635 * dmu_recv_begin() succeeds.
3640 if (dmu_objset_from_ds(drc.drc_logical_ds, &os) == 0) {
3641 if (drc.drc_newfs) {
3642 if (spa_version(os->os_spa) >=
3643 SPA_VERSION_RECVD_PROPS)
3644 first_recvd_props = B_TRUE;
3645 } else if (origprops != NULL) {
3646 if (clear_received_props(os, tofs, origprops,
3647 first_recvd_props ? NULL : props) != 0)
3648 zc->zc_obj |= ZPROP_ERR_NOCLEAR;
3650 zc->zc_obj |= ZPROP_ERR_NOCLEAR;
3652 dsl_prop_set_hasrecvd(os);
3653 } else if (!drc.drc_newfs) {
3654 zc->zc_obj |= ZPROP_ERR_NOCLEAR;
3657 (void) zfs_set_prop_nvlist(tofs, ZPROP_SRC_RECEIVED,
3659 (void) nvlist_merge(errors, errlist, 0);
3660 nvlist_free(errlist);
3663 if (fit_error_list(zc, &errors) != 0 || put_nvlist(zc, errors) != 0) {
3665 * Caller made zc->zc_nvlist_dst less than the minimum expected
3666 * size or supplied an invalid address.
3668 props_error = EINVAL;
3672 error = dmu_recv_stream(&drc, fp->f_vnode, &off, zc->zc_cleanup_fd,
3673 &zc->zc_action_handle);
3676 zfs_sb_t *zsb = NULL;
3678 if (get_zfs_sb(tofs, &zsb) == 0) {
3682 error = zfs_suspend_fs(zsb);
3684 * If the suspend fails, then the recv_end will
3685 * likely also fail, and clean up after itself.
3687 end_err = dmu_recv_end(&drc);
3689 error = zfs_resume_fs(zsb, tofs);
3690 error = error ? error : end_err;
3691 deactivate_super(zsb->z_sb);
3693 error = dmu_recv_end(&drc);
3697 zc->zc_cookie = off - fp->f_offset;
3698 if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0)
3702 if (zfs_ioc_recv_inject_err) {
3703 zfs_ioc_recv_inject_err = B_FALSE;
3708 * On error, restore the original props.
3710 if (error && props) {
3711 if (dmu_objset_hold(tofs, FTAG, &os) == 0) {
3712 if (clear_received_props(os, tofs, props, NULL) != 0) {
3714 * We failed to clear the received properties.
3715 * Since we may have left a $recvd value on the
3716 * system, we can't clear the $hasrecvd flag.
3718 zc->zc_obj |= ZPROP_ERR_NORESTORE;
3719 } else if (first_recvd_props) {
3720 dsl_prop_unset_hasrecvd(os);
3722 dmu_objset_rele(os, FTAG);
3723 } else if (!drc.drc_newfs) {
3724 /* We failed to clear the received properties. */
3725 zc->zc_obj |= ZPROP_ERR_NORESTORE;
3728 if (origprops == NULL && !drc.drc_newfs) {
3729 /* We failed to stash the original properties. */
3730 zc->zc_obj |= ZPROP_ERR_NORESTORE;
3734 * dsl_props_set() will not convert RECEIVED to LOCAL on or
3735 * after SPA_VERSION_RECVD_PROPS, so we need to specify LOCAL
3736 * explictly if we're restoring local properties cleared in the
3737 * first new-style receive.
3739 if (origprops != NULL &&
3740 zfs_set_prop_nvlist(tofs, (first_recvd_props ?
3741 ZPROP_SRC_LOCAL : ZPROP_SRC_RECEIVED),
3742 origprops, NULL) != 0) {
3744 * We stashed the original properties but failed to
3747 zc->zc_obj |= ZPROP_ERR_NORESTORE;
3752 nvlist_free(origprops);
3753 nvlist_free(errors);
3757 error = props_error;
3764 * zc_name name of snapshot to send
3765 * zc_cookie file descriptor to send stream to
3766 * zc_obj fromorigin flag (mutually exclusive with zc_fromobj)
3767 * zc_sendobj objsetid of snapshot to send
3768 * zc_fromobj objsetid of incremental fromsnap (may be zero)
3773 zfs_ioc_send(zfs_cmd_t *zc)
3775 objset_t *fromsnap = NULL;
3781 dsl_dataset_t *dsfrom = NULL;
3785 error = spa_open(zc->zc_name, &spa, FTAG);
3789 dp = spa_get_dsl(spa);
3790 rw_enter(&dp->dp_config_rwlock, RW_READER);
3791 error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &ds);
3792 rw_exit(&dp->dp_config_rwlock);
3794 spa_close(spa, FTAG);
3798 error = dmu_objset_from_ds(ds, &tosnap);
3800 dsl_dataset_rele(ds, FTAG);
3801 spa_close(spa, FTAG);
3805 if (zc->zc_fromobj != 0) {
3806 rw_enter(&dp->dp_config_rwlock, RW_READER);
3807 error = dsl_dataset_hold_obj(dp, zc->zc_fromobj, FTAG, &dsfrom);
3808 rw_exit(&dp->dp_config_rwlock);
3809 spa_close(spa, FTAG);
3811 dsl_dataset_rele(ds, FTAG);
3814 error = dmu_objset_from_ds(dsfrom, &fromsnap);
3816 dsl_dataset_rele(dsfrom, FTAG);
3817 dsl_dataset_rele(ds, FTAG);
3821 spa_close(spa, FTAG);
3824 fp = getf(zc->zc_cookie);
3826 dsl_dataset_rele(ds, FTAG);
3828 dsl_dataset_rele(dsfrom, FTAG);
3833 error = dmu_sendbackup(tosnap, fromsnap, zc->zc_obj, fp->f_vnode, &off);
3835 if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0)
3837 releasef(zc->zc_cookie);
3839 dsl_dataset_rele(dsfrom, FTAG);
3840 dsl_dataset_rele(ds, FTAG);
3845 zfs_ioc_inject_fault(zfs_cmd_t *zc)
3849 error = zio_inject_fault(zc->zc_name, (int)zc->zc_guid, &id,
3850 &zc->zc_inject_record);
3853 zc->zc_guid = (uint64_t)id;
3859 zfs_ioc_clear_fault(zfs_cmd_t *zc)
3861 return (zio_clear_fault((int)zc->zc_guid));
3865 zfs_ioc_inject_list_next(zfs_cmd_t *zc)
3867 int id = (int)zc->zc_guid;
3870 error = zio_inject_list_next(&id, zc->zc_name, sizeof (zc->zc_name),
3871 &zc->zc_inject_record);
3879 zfs_ioc_error_log(zfs_cmd_t *zc)
3883 size_t count = (size_t)zc->zc_nvlist_dst_size;
3885 if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0)
3888 error = spa_get_errlog(spa, (void *)(uintptr_t)zc->zc_nvlist_dst,
3891 zc->zc_nvlist_dst_size = count;
3893 zc->zc_nvlist_dst_size = spa_get_errlog_size(spa);
3895 spa_close(spa, FTAG);
3901 zfs_ioc_clear(zfs_cmd_t *zc)
3908 * On zpool clear we also fix up missing slogs
3910 mutex_enter(&spa_namespace_lock);
3911 spa = spa_lookup(zc->zc_name);
3913 mutex_exit(&spa_namespace_lock);
3916 if (spa_get_log_state(spa) == SPA_LOG_MISSING) {
3917 /* we need to let spa_open/spa_load clear the chains */
3918 spa_set_log_state(spa, SPA_LOG_CLEAR);
3920 spa->spa_last_open_failed = 0;
3921 mutex_exit(&spa_namespace_lock);
3923 if (zc->zc_cookie & ZPOOL_NO_REWIND) {
3924 error = spa_open(zc->zc_name, &spa, FTAG);
3927 nvlist_t *config = NULL;
3929 if (zc->zc_nvlist_src == 0)
3932 if ((error = get_nvlist(zc->zc_nvlist_src,
3933 zc->zc_nvlist_src_size, zc->zc_iflags, &policy)) == 0) {
3934 error = spa_open_rewind(zc->zc_name, &spa, FTAG,
3936 if (config != NULL) {
3939 if ((err = put_nvlist(zc, config)) != 0)
3941 nvlist_free(config);
3943 nvlist_free(policy);
3950 spa_vdev_state_enter(spa, SCL_NONE);
3952 if (zc->zc_guid == 0) {
3955 vd = spa_lookup_by_guid(spa, zc->zc_guid, B_TRUE);
3957 (void) spa_vdev_state_exit(spa, NULL, ENODEV);
3958 spa_close(spa, FTAG);
3963 vdev_clear(spa, vd);
3965 (void) spa_vdev_state_exit(spa, NULL, 0);
3968 * Resume any suspended I/Os.
3970 if (zio_resume(spa) != 0)
3973 spa_close(spa, FTAG);
3980 * zc_name name of filesystem
3981 * zc_value name of origin snapshot
3984 * zc_string name of conflicting snapshot, if there is one
3987 zfs_ioc_promote(zfs_cmd_t *zc)
3992 * We don't need to unmount *all* the origin fs's snapshots, but
3995 cp = strchr(zc->zc_value, '@');
3998 (void) dmu_objset_find(zc->zc_value,
3999 zfs_unmount_snap, NULL, DS_FIND_SNAPSHOTS);
4000 return (dsl_dataset_promote(zc->zc_name, zc->zc_string));
4004 * Retrieve a single {user|group}{used|quota}@... property.
4007 * zc_name name of filesystem
4008 * zc_objset_type zfs_userquota_prop_t
4009 * zc_value domain name (eg. "S-1-234-567-89")
4010 * zc_guid RID/UID/GID
4013 * zc_cookie property value
4016 zfs_ioc_userspace_one(zfs_cmd_t *zc)
4021 if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS)
4024 error = zfs_sb_hold(zc->zc_name, FTAG, &zsb, B_FALSE);
4028 error = zfs_userspace_one(zsb,
4029 zc->zc_objset_type, zc->zc_value, zc->zc_guid, &zc->zc_cookie);
4030 zfs_sb_rele(zsb, FTAG);
4037 * zc_name name of filesystem
4038 * zc_cookie zap cursor
4039 * zc_objset_type zfs_userquota_prop_t
4040 * zc_nvlist_dst[_size] buffer to fill (not really an nvlist)
4043 * zc_nvlist_dst[_size] data buffer (array of zfs_useracct_t)
4044 * zc_cookie zap cursor
4047 zfs_ioc_userspace_many(zfs_cmd_t *zc)
4050 int bufsize = zc->zc_nvlist_dst_size;
4057 error = zfs_sb_hold(zc->zc_name, FTAG, &zsb, B_FALSE);
4061 buf = vmem_alloc(bufsize, KM_SLEEP);
4063 error = zfs_userspace_many(zsb, zc->zc_objset_type, &zc->zc_cookie,
4064 buf, &zc->zc_nvlist_dst_size);
4067 error = xcopyout(buf,
4068 (void *)(uintptr_t)zc->zc_nvlist_dst,
4069 zc->zc_nvlist_dst_size);
4071 vmem_free(buf, bufsize);
4072 zfs_sb_rele(zsb, FTAG);
4079 * zc_name name of filesystem
4085 zfs_ioc_userspace_upgrade(zfs_cmd_t *zc)
4091 if (get_zfs_sb(zc->zc_name, &zsb) == 0) {
4092 if (!dmu_objset_userused_enabled(zsb->z_os)) {
4094 * If userused is not enabled, it may be because the
4095 * objset needs to be closed & reopened (to grow the
4096 * objset_phys_t). Suspend/resume the fs will do that.
4098 error = zfs_suspend_fs(zsb);
4100 error = zfs_resume_fs(zsb, zc->zc_name);
4103 error = dmu_objset_userspace_upgrade(zsb->z_os);
4104 deactivate_super(zsb->z_sb);
4106 /* XXX kind of reading contents without owning */
4107 error = dmu_objset_hold(zc->zc_name, FTAG, &os);
4111 error = dmu_objset_userspace_upgrade(os);
4112 dmu_objset_rele(os, FTAG);
4119 zfs_ioc_share(zfs_cmd_t *zc)
4124 ace_t full_access[] = {
4125 {(uid_t)-1, ACE_ALL_PERMS, ACE_EVERYONE, 0}
4130 * zc_name name of containing filesystem
4131 * zc_obj object # beyond which we want next in-use object #
4134 * zc_obj next in-use object #
4137 zfs_ioc_next_obj(zfs_cmd_t *zc)
4139 objset_t *os = NULL;
4142 error = dmu_objset_hold(zc->zc_name, FTAG, &os);
4146 error = dmu_object_next(os, &zc->zc_obj, B_FALSE,
4147 os->os_dsl_dataset->ds_phys->ds_prev_snap_txg);
4149 dmu_objset_rele(os, FTAG);
4155 * zc_name name of filesystem
4156 * zc_value prefix name for snapshot
4157 * zc_cleanup_fd cleanup-on-exit file descriptor for calling process
4162 zfs_ioc_tmp_snapshot(zfs_cmd_t *zc)
4167 snap_name = kmem_asprintf("%s-%016llx", zc->zc_value,
4168 (u_longlong_t)ddi_get_lbolt64());
4170 if (strlen(snap_name) >= MAXNAMELEN) {
4175 error = dmu_objset_snapshot(zc->zc_name, snap_name, snap_name,
4176 NULL, B_FALSE, B_TRUE, zc->zc_cleanup_fd);
4182 (void) strcpy(zc->zc_value, snap_name);
4189 * zc_name name of "to" snapshot
4190 * zc_value name of "from" snapshot
4191 * zc_cookie file descriptor to write diff data on
4194 * dmu_diff_record_t's to the file descriptor
4197 zfs_ioc_diff(zfs_cmd_t *zc)
4205 error = dmu_objset_hold(zc->zc_name, FTAG, &tosnap);
4209 error = dmu_objset_hold(zc->zc_value, FTAG, &fromsnap);
4211 dmu_objset_rele(tosnap, FTAG);
4215 fp = getf(zc->zc_cookie);
4217 dmu_objset_rele(fromsnap, FTAG);
4218 dmu_objset_rele(tosnap, FTAG);
4224 error = dmu_diff(tosnap, fromsnap, fp->f_vnode, &off);
4226 if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0)
4228 releasef(zc->zc_cookie);
4230 dmu_objset_rele(fromsnap, FTAG);
4231 dmu_objset_rele(tosnap, FTAG);
4236 * Remove all ACL files in shares dir
4238 #ifdef HAVE_SMB_SHARE
4240 zfs_smb_acl_purge(znode_t *dzp)
4243 zap_attribute_t zap;
4244 zfs_sb_t *zsb = ZTOZSB(dzp);
4247 for (zap_cursor_init(&zc, zsb->z_os, dzp->z_id);
4248 (error = zap_cursor_retrieve(&zc, &zap)) == 0;
4249 zap_cursor_advance(&zc)) {
4250 if ((error = VOP_REMOVE(ZTOV(dzp), zap.za_name, kcred,
4254 zap_cursor_fini(&zc);
4257 #endif /* HAVE_SMB_SHARE */
4260 zfs_ioc_smb_acl(zfs_cmd_t *zc)
4262 #ifdef HAVE_SMB_SHARE
4265 vnode_t *resourcevp = NULL;
4274 if ((error = lookupname(zc->zc_value, UIO_SYSSPACE,
4275 NO_FOLLOW, NULL, &vp)) != 0)
4278 /* Now make sure mntpnt and dataset are ZFS */
4280 if (vp->v_vfsp->vfs_fstype != zfsfstype ||
4281 (strcmp((char *)refstr_value(vp->v_vfsp->vfs_resource),
4282 zc->zc_name) != 0)) {
4292 * Create share dir if its missing.
4294 mutex_enter(&zsb->z_lock);
4295 if (zsb->z_shares_dir == 0) {
4298 tx = dmu_tx_create(zsb->z_os);
4299 dmu_tx_hold_zap(tx, MASTER_NODE_OBJ, TRUE,
4301 dmu_tx_hold_zap(tx, DMU_NEW_OBJECT, FALSE, NULL);
4302 error = dmu_tx_assign(tx, TXG_WAIT);
4306 error = zfs_create_share_dir(zsb, tx);
4310 mutex_exit(&zsb->z_lock);
4316 mutex_exit(&zsb->z_lock);
4318 ASSERT(zsb->z_shares_dir);
4319 if ((error = zfs_zget(zsb, zsb->z_shares_dir, &sharedir)) != 0) {
4325 switch (zc->zc_cookie) {
4326 case ZFS_SMB_ACL_ADD:
4327 vattr.va_mask = AT_MODE|AT_UID|AT_GID|AT_TYPE;
4328 vattr.va_mode = S_IFREG|0777;
4332 vsec.vsa_mask = VSA_ACE;
4333 vsec.vsa_aclentp = &full_access;
4334 vsec.vsa_aclentsz = sizeof (full_access);
4335 vsec.vsa_aclcnt = 1;
4337 error = VOP_CREATE(ZTOV(sharedir), zc->zc_string,
4338 &vattr, EXCL, 0, &resourcevp, kcred, 0, NULL, &vsec);
4340 VN_RELE(resourcevp);
4343 case ZFS_SMB_ACL_REMOVE:
4344 error = VOP_REMOVE(ZTOV(sharedir), zc->zc_string, kcred,
4348 case ZFS_SMB_ACL_RENAME:
4349 if ((error = get_nvlist(zc->zc_nvlist_src,
4350 zc->zc_nvlist_src_size, zc->zc_iflags, &nvlist)) != 0) {
4355 if (nvlist_lookup_string(nvlist, ZFS_SMB_ACL_SRC, &src) ||
4356 nvlist_lookup_string(nvlist, ZFS_SMB_ACL_TARGET,
4359 VN_RELE(ZTOV(sharedir));
4361 nvlist_free(nvlist);
4364 error = VOP_RENAME(ZTOV(sharedir), src, ZTOV(sharedir), target,
4366 nvlist_free(nvlist);
4369 case ZFS_SMB_ACL_PURGE:
4370 error = zfs_smb_acl_purge(sharedir);
4379 VN_RELE(ZTOV(sharedir));
4386 #endif /* HAVE_SMB_SHARE */
4391 * zc_name name of filesystem
4392 * zc_value short name of snap
4393 * zc_string user-supplied tag for this hold
4394 * zc_cookie recursive flag
4395 * zc_temphold set if hold is temporary
4396 * zc_cleanup_fd cleanup-on-exit file descriptor for calling process
4397 * zc_sendobj if non-zero, the objid for zc_name@zc_value
4398 * zc_createtxg if zc_sendobj is non-zero, snap must have zc_createtxg
4403 zfs_ioc_hold(zfs_cmd_t *zc)
4405 boolean_t recursive = zc->zc_cookie;
4412 if (snapshot_namecheck(zc->zc_value, NULL, NULL) != 0)
4415 if (zc->zc_sendobj == 0) {
4416 return (dsl_dataset_user_hold(zc->zc_name, zc->zc_value,
4417 zc->zc_string, recursive, zc->zc_temphold,
4418 zc->zc_cleanup_fd));
4424 error = spa_open(zc->zc_name, &spa, FTAG);
4428 dp = spa_get_dsl(spa);
4429 rw_enter(&dp->dp_config_rwlock, RW_READER);
4430 error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &ds);
4431 rw_exit(&dp->dp_config_rwlock);
4432 spa_close(spa, FTAG);
4437 * Until we have a hold on this snapshot, it's possible that
4438 * zc_sendobj could've been destroyed and reused as part
4439 * of a later txg. Make sure we're looking at the right object.
4441 if (zc->zc_createtxg != ds->ds_phys->ds_creation_txg) {
4442 dsl_dataset_rele(ds, FTAG);
4446 if (zc->zc_cleanup_fd != -1 && zc->zc_temphold) {
4447 error = zfs_onexit_fd_hold(zc->zc_cleanup_fd, &minor);
4449 dsl_dataset_rele(ds, FTAG);
4454 error = dsl_dataset_user_hold_for_send(ds, zc->zc_string,
4458 dsl_register_onexit_hold_cleanup(ds, zc->zc_string,
4461 zfs_onexit_fd_rele(zc->zc_cleanup_fd);
4463 dsl_dataset_rele(ds, FTAG);
4470 * zc_name name of dataset from which we're releasing a user hold
4471 * zc_value short name of snap
4472 * zc_string user-supplied tag for this hold
4473 * zc_cookie recursive flag
4478 zfs_ioc_release(zfs_cmd_t *zc)
4480 boolean_t recursive = zc->zc_cookie;
4482 if (snapshot_namecheck(zc->zc_value, NULL, NULL) != 0)
4485 return (dsl_dataset_user_release(zc->zc_name, zc->zc_value,
4486 zc->zc_string, recursive));
4491 * zc_name name of filesystem
4494 * zc_nvlist_src{_size} nvlist of snapshot holds
4497 zfs_ioc_get_holds(zfs_cmd_t *zc)
4502 if ((error = dsl_dataset_get_holds(zc->zc_name, &nvp)) == 0) {
4503 error = put_nvlist(zc, nvp);
4512 * zc_guid flags (ZEVENT_NONBLOCK)
4515 * zc_nvlist_dst next nvlist event
4516 * zc_cookie dropped events since last get
4517 * zc_cleanup_fd cleanup-on-exit file descriptor
4520 zfs_ioc_events_next(zfs_cmd_t *zc)
4523 nvlist_t *event = NULL;
4525 uint64_t dropped = 0;
4528 error = zfs_zevent_fd_hold(zc->zc_cleanup_fd, &minor, &ze);
4533 error = zfs_zevent_next(ze, &event,
4534 &zc->zc_nvlist_dst_size, &dropped);
4535 if (event != NULL) {
4536 zc->zc_cookie = dropped;
4537 error = put_nvlist(zc, event);
4541 if (zc->zc_guid & ZEVENT_NONBLOCK)
4544 if ((error == 0) || (error != ENOENT))
4547 error = zfs_zevent_wait(ze);
4552 zfs_zevent_fd_rele(zc->zc_cleanup_fd);
4559 * zc_cookie cleared events count
4562 zfs_ioc_events_clear(zfs_cmd_t *zc)
4566 zfs_zevent_drain_all(&count);
4567 zc->zc_cookie = count;
4573 * pool create, destroy, and export don't log the history as part of
4574 * zfsdev_ioctl, but rather zfs_ioc_pool_create, and zfs_ioc_pool_export
4575 * do the logging of those commands.
4577 static zfs_ioc_vec_t zfs_ioc_vec[] = {
4578 { zfs_ioc_pool_create, zfs_secpolicy_config, POOL_NAME, B_FALSE,
4580 { zfs_ioc_pool_destroy, zfs_secpolicy_config, POOL_NAME, B_FALSE,
4582 { zfs_ioc_pool_import, zfs_secpolicy_config, POOL_NAME, B_TRUE,
4584 { zfs_ioc_pool_export, zfs_secpolicy_config, POOL_NAME, B_FALSE,
4586 { zfs_ioc_pool_configs, zfs_secpolicy_none, NO_NAME, B_FALSE,
4588 { zfs_ioc_pool_stats, zfs_secpolicy_read, POOL_NAME, B_FALSE,
4590 { zfs_ioc_pool_tryimport, zfs_secpolicy_config, NO_NAME, B_FALSE,
4592 { zfs_ioc_pool_scan, zfs_secpolicy_config, POOL_NAME, B_TRUE,
4593 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
4594 { zfs_ioc_pool_freeze, zfs_secpolicy_config, NO_NAME, B_FALSE,
4595 POOL_CHECK_READONLY },
4596 { zfs_ioc_pool_upgrade, zfs_secpolicy_config, POOL_NAME, B_TRUE,
4597 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
4598 { zfs_ioc_pool_get_history, zfs_secpolicy_config, POOL_NAME, B_FALSE,
4600 { zfs_ioc_vdev_add, zfs_secpolicy_config, POOL_NAME, B_TRUE,
4601 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
4602 { zfs_ioc_vdev_remove, zfs_secpolicy_config, POOL_NAME, B_TRUE,
4603 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
4604 { zfs_ioc_vdev_set_state, zfs_secpolicy_config, POOL_NAME, B_TRUE,
4605 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
4606 { zfs_ioc_vdev_attach, zfs_secpolicy_config, POOL_NAME, B_TRUE,
4607 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
4608 { zfs_ioc_vdev_detach, zfs_secpolicy_config, POOL_NAME, B_TRUE,
4609 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
4610 { zfs_ioc_vdev_setpath, zfs_secpolicy_config, POOL_NAME, B_FALSE,
4611 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
4612 { zfs_ioc_vdev_setfru, zfs_secpolicy_config, POOL_NAME, B_FALSE,
4613 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
4614 { zfs_ioc_objset_stats, zfs_secpolicy_read, DATASET_NAME, B_FALSE,
4615 POOL_CHECK_SUSPENDED },
4616 { zfs_ioc_objset_zplprops, zfs_secpolicy_read, DATASET_NAME, B_FALSE,
4618 { zfs_ioc_dataset_list_next, zfs_secpolicy_read, DATASET_NAME, B_FALSE,
4619 POOL_CHECK_SUSPENDED },
4620 { zfs_ioc_snapshot_list_next, zfs_secpolicy_read, DATASET_NAME, B_FALSE,
4621 POOL_CHECK_SUSPENDED },
4622 { zfs_ioc_set_prop, zfs_secpolicy_none, DATASET_NAME, B_TRUE,
4623 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
4624 { zfs_ioc_create_minor, zfs_secpolicy_config, DATASET_NAME, B_FALSE,
4626 { zfs_ioc_remove_minor, zfs_secpolicy_config, DATASET_NAME, B_FALSE,
4628 { zfs_ioc_create, zfs_secpolicy_create, DATASET_NAME, B_TRUE,
4629 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
4630 { zfs_ioc_destroy, zfs_secpolicy_destroy, DATASET_NAME, B_TRUE,
4631 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
4632 { zfs_ioc_rollback, zfs_secpolicy_rollback, DATASET_NAME, B_TRUE,
4633 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
4634 { zfs_ioc_rename, zfs_secpolicy_rename, DATASET_NAME, B_TRUE,
4635 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
4636 { zfs_ioc_recv, zfs_secpolicy_receive, DATASET_NAME, B_TRUE,
4637 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
4638 { zfs_ioc_send, zfs_secpolicy_send, DATASET_NAME, B_TRUE,
4640 { zfs_ioc_inject_fault, zfs_secpolicy_inject, NO_NAME, B_FALSE,
4642 { zfs_ioc_clear_fault, zfs_secpolicy_inject, NO_NAME, B_FALSE,
4644 { zfs_ioc_inject_list_next, zfs_secpolicy_inject, NO_NAME, B_FALSE,
4646 { zfs_ioc_error_log, zfs_secpolicy_inject, POOL_NAME, B_FALSE,
4648 { zfs_ioc_clear, zfs_secpolicy_config, POOL_NAME, B_TRUE,
4650 { zfs_ioc_promote, zfs_secpolicy_promote, DATASET_NAME, B_TRUE,
4651 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
4652 { zfs_ioc_destroy_snaps, zfs_secpolicy_destroy_snaps, DATASET_NAME,
4653 B_TRUE, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
4654 { zfs_ioc_snapshot, zfs_secpolicy_snapshot, DATASET_NAME, B_TRUE,
4655 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
4656 { zfs_ioc_dsobj_to_dsname, zfs_secpolicy_diff, POOL_NAME, B_FALSE,
4658 { zfs_ioc_obj_to_path, zfs_secpolicy_diff, DATASET_NAME, B_FALSE,
4659 POOL_CHECK_SUSPENDED },
4660 { zfs_ioc_pool_set_props, zfs_secpolicy_config, POOL_NAME, B_TRUE,
4661 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
4662 { zfs_ioc_pool_get_props, zfs_secpolicy_read, POOL_NAME, B_FALSE,
4664 { zfs_ioc_set_fsacl, zfs_secpolicy_fsacl, DATASET_NAME, B_TRUE,
4665 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
4666 { zfs_ioc_get_fsacl, zfs_secpolicy_read, DATASET_NAME, B_FALSE,
4668 { zfs_ioc_share, zfs_secpolicy_share, DATASET_NAME, B_FALSE,
4670 { zfs_ioc_inherit_prop, zfs_secpolicy_inherit, DATASET_NAME, B_TRUE,
4671 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
4672 { zfs_ioc_smb_acl, zfs_secpolicy_smb_acl, DATASET_NAME, B_FALSE,
4674 { zfs_ioc_userspace_one, zfs_secpolicy_userspace_one, DATASET_NAME,
4675 B_FALSE, POOL_CHECK_NONE },
4676 { zfs_ioc_userspace_many, zfs_secpolicy_userspace_many, DATASET_NAME,
4677 B_FALSE, POOL_CHECK_NONE },
4678 { zfs_ioc_userspace_upgrade, zfs_secpolicy_userspace_upgrade,
4679 DATASET_NAME, B_FALSE, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
4680 { zfs_ioc_hold, zfs_secpolicy_hold, DATASET_NAME, B_TRUE,
4681 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
4682 { zfs_ioc_release, zfs_secpolicy_release, DATASET_NAME, B_TRUE,
4683 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
4684 { zfs_ioc_get_holds, zfs_secpolicy_read, DATASET_NAME, B_FALSE,
4685 POOL_CHECK_SUSPENDED },
4686 { zfs_ioc_objset_recvd_props, zfs_secpolicy_read, DATASET_NAME, B_FALSE,
4688 { zfs_ioc_vdev_split, zfs_secpolicy_config, POOL_NAME, B_TRUE,
4689 POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
4690 { zfs_ioc_next_obj, zfs_secpolicy_read, DATASET_NAME, B_FALSE,
4692 { zfs_ioc_diff, zfs_secpolicy_diff, DATASET_NAME, B_FALSE,
4694 { zfs_ioc_tmp_snapshot, zfs_secpolicy_tmp_snapshot, DATASET_NAME,
4695 B_FALSE, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
4696 { zfs_ioc_obj_to_stats, zfs_secpolicy_diff, DATASET_NAME, B_FALSE,
4697 POOL_CHECK_SUSPENDED },
4698 { zfs_ioc_events_next, zfs_secpolicy_config, NO_NAME, B_FALSE,
4700 { zfs_ioc_events_clear, zfs_secpolicy_config, NO_NAME, B_FALSE,
4705 pool_status_check(const char *name, zfs_ioc_namecheck_t type,
4706 zfs_ioc_poolcheck_t check)
4711 ASSERT(type == POOL_NAME || type == DATASET_NAME);
4713 if (check & POOL_CHECK_NONE)
4716 error = spa_open(name, &spa, FTAG);
4718 if ((check & POOL_CHECK_SUSPENDED) && spa_suspended(spa))
4720 else if ((check & POOL_CHECK_READONLY) && !spa_writeable(spa))
4722 spa_close(spa, FTAG);
4728 zfsdev_get_state_impl(minor_t minor, enum zfsdev_state_type which)
4732 ASSERT(MUTEX_HELD(&zfsdev_state_lock));
4734 for (zs = list_head(&zfsdev_state_list); zs != NULL;
4735 zs = list_next(&zfsdev_state_list, zs)) {
4736 if (zs->zs_minor == minor) {
4738 case ZST_ONEXIT: return (zs->zs_onexit);
4739 case ZST_ZEVENT: return (zs->zs_zevent);
4740 case ZST_ALL: return (zs);
4749 zfsdev_get_state(minor_t minor, enum zfsdev_state_type which)
4753 mutex_enter(&zfsdev_state_lock);
4754 ptr = zfsdev_get_state_impl(minor, which);
4755 mutex_exit(&zfsdev_state_lock);
4761 zfsdev_getminor(struct file *filp)
4763 ASSERT(filp != NULL);
4764 ASSERT(filp->private_data != NULL);
4766 return (((zfsdev_state_t *)filp->private_data)->zs_minor);
4770 * Find a free minor number. The zfsdev_state_list is expected to
4771 * be short since it is only a list of currently open file handles.
4774 zfsdev_minor_alloc(void)
4776 static minor_t last_minor = 0;
4779 ASSERT(MUTEX_HELD(&zfsdev_state_lock));
4781 for (m = last_minor + 1; m != last_minor; m++) {
4782 if (m > ZFSDEV_MAX_MINOR)
4784 if (zfsdev_get_state_impl(m, ZST_ALL) == NULL) {
4794 zfsdev_state_init(struct file *filp)
4799 ASSERT(MUTEX_HELD(&zfsdev_state_lock));
4801 minor = zfsdev_minor_alloc();
4805 zs = kmem_zalloc( sizeof(zfsdev_state_t), KM_SLEEP);
4810 zs->zs_minor = minor;
4811 filp->private_data = zs;
4813 zfs_onexit_init((zfs_onexit_t **)&zs->zs_onexit);
4814 zfs_zevent_init((zfs_zevent_t **)&zs->zs_zevent);
4816 list_insert_tail(&zfsdev_state_list, zs);
4822 zfsdev_state_destroy(struct file *filp)
4826 ASSERT(MUTEX_HELD(&zfsdev_state_lock));
4827 ASSERT(filp->private_data != NULL);
4829 zs = filp->private_data;
4830 zfs_onexit_destroy(zs->zs_onexit);
4831 zfs_zevent_destroy(zs->zs_zevent);
4833 list_remove(&zfsdev_state_list, zs);
4834 kmem_free(zs, sizeof(zfsdev_state_t));
4840 zfsdev_open(struct inode *ino, struct file *filp)
4844 mutex_enter(&zfsdev_state_lock);
4845 error = zfsdev_state_init(filp);
4846 mutex_exit(&zfsdev_state_lock);
4852 zfsdev_release(struct inode *ino, struct file *filp)
4856 mutex_enter(&zfsdev_state_lock);
4857 error = zfsdev_state_destroy(filp);
4858 mutex_exit(&zfsdev_state_lock);
4864 zfsdev_ioctl(struct file *filp, unsigned cmd, unsigned long arg)
4868 int error, rc, flag = 0;
4870 vec = cmd - ZFS_IOC;
4871 if (vec >= sizeof (zfs_ioc_vec) / sizeof (zfs_ioc_vec[0]))
4874 zc = kmem_zalloc(sizeof (zfs_cmd_t), KM_SLEEP | KM_NODEBUG);
4876 error = ddi_copyin((void *)arg, zc, sizeof (zfs_cmd_t), flag);
4880 if ((error == 0) && !(flag & FKIOCTL))
4881 error = zfs_ioc_vec[vec].zvec_secpolicy(zc, CRED());
4884 * Ensure that all pool/dataset names are valid before we pass down to
4888 zc->zc_name[sizeof (zc->zc_name) - 1] = '\0';
4889 zc->zc_iflags = flag & FKIOCTL;
4890 switch (zfs_ioc_vec[vec].zvec_namecheck) {
4892 if (pool_namecheck(zc->zc_name, NULL, NULL) != 0)
4894 error = pool_status_check(zc->zc_name,
4895 zfs_ioc_vec[vec].zvec_namecheck,
4896 zfs_ioc_vec[vec].zvec_pool_check);
4900 if (dataset_namecheck(zc->zc_name, NULL, NULL) != 0)
4902 error = pool_status_check(zc->zc_name,
4903 zfs_ioc_vec[vec].zvec_namecheck,
4904 zfs_ioc_vec[vec].zvec_pool_check);
4913 error = zfs_ioc_vec[vec].zvec_func(zc);
4915 rc = ddi_copyout(zc, (void *)arg, sizeof (zfs_cmd_t), flag);
4919 if (zfs_ioc_vec[vec].zvec_his_log)
4920 zfs_log_history(zc);
4923 kmem_free(zc, sizeof (zfs_cmd_t));
4927 #ifdef CONFIG_COMPAT
4929 zfsdev_compat_ioctl(struct file *filp, unsigned cmd, unsigned long arg)
4931 return zfsdev_ioctl(filp, cmd, arg);
4934 #define zfsdev_compat_ioctl NULL
4937 static const struct file_operations zfsdev_fops = {
4938 .open = zfsdev_open,
4939 .release = zfsdev_release,
4940 .unlocked_ioctl = zfsdev_ioctl,
4941 .compat_ioctl = zfsdev_compat_ioctl,
4942 .owner = THIS_MODULE,
4945 static struct miscdevice zfs_misc = {
4946 .minor = MISC_DYNAMIC_MINOR,
4948 .fops = &zfsdev_fops,
4956 mutex_init(&zfsdev_state_lock, NULL, MUTEX_DEFAULT, NULL);
4957 list_create(&zfsdev_state_list, sizeof (zfsdev_state_t),
4958 offsetof(zfsdev_state_t, zs_next));
4960 error = misc_register(&zfs_misc);
4962 printk(KERN_INFO "ZFS: misc_register() failed %d\n", error);
4974 error = misc_deregister(&zfs_misc);
4976 printk(KERN_INFO "ZFS: misc_deregister() failed %d\n", error);
4978 mutex_destroy(&zfsdev_state_lock);
4979 list_destroy(&zfsdev_state_list);
4982 uint_t zfs_fsyncer_key;
4983 extern uint_t rrw_tsd_key;
4986 #define ZFS_DEBUG_STR " (DEBUG mode)"
4988 #define ZFS_DEBUG_STR ""
4996 spa_init(FREAD | FWRITE);
4999 if ((error = zvol_init()) != 0)
5002 if ((error = zfs_attach()) != 0)
5005 tsd_create(&zfs_fsyncer_key, NULL);
5006 tsd_create(&rrw_tsd_key, NULL);
5008 printk(KERN_NOTICE "ZFS: Loaded module v%s-%s%s, "
5009 "ZFS pool version %s, ZFS filesystem version %s\n",
5010 ZFS_META_VERSION, ZFS_META_RELEASE, ZFS_DEBUG_STR,
5011 SPA_VERSION_STRING, ZPL_VERSION_STRING);
5020 printk(KERN_NOTICE "ZFS: Failed to Load ZFS Filesystem v%s-%s%s"
5021 ", rc = %d\n", ZFS_META_VERSION, ZFS_META_RELEASE,
5022 ZFS_DEBUG_STR, error);
5035 tsd_destroy(&zfs_fsyncer_key);
5036 tsd_destroy(&rrw_tsd_key);
5038 printk(KERN_NOTICE "ZFS: Unloaded module v%s-%s%s\n",
5039 ZFS_META_VERSION, ZFS_META_RELEASE, ZFS_DEBUG_STR);
5045 spl_module_init(_init);
5046 spl_module_exit(_fini);
5048 MODULE_DESCRIPTION("ZFS");
5049 MODULE_AUTHOR(ZFS_META_AUTHOR);
5050 MODULE_LICENSE(ZFS_META_LICENSE);
5051 #endif /* HAVE_SPL */