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201d262949
Force receive (zfs receive -F) can rollback or destroy snapshots and file systems that do not exist on the sending side (see zfs-receive man page). This means an user having the receive permission can effectively delete data on receiving side, even if such user does not have explicit rollback or destroy permissions. This patch adds the receive:append permission, which only permits limited, non-forced receive. Behavior for users with full receive permission is not changed in any way. Fixes #16943 Reviewed-by: Ameer Hamza <ahamza@ixsystems.com> Reviewed-by: Alexander Motin <mav@FreeBSD.org> Signed-off-by: Gionatan Danti <g.danti@assyoma.it> Closes #17015
92 lines
3.3 KiB
C
92 lines
3.3 KiB
C
/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License (the "License").
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* You may not use this file except in compliance with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or https://opensource.org/licenses/CDDL-1.0.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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/*
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* Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
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* Copyright (c) 2013, 2015 by Delphix. All rights reserved.
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*/
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#ifndef _SYS_DSL_DELEG_H
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#define _SYS_DSL_DELEG_H
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#include <sys/dmu.h>
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#include <sys/dsl_pool.h>
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#include <sys/zfs_context.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define ZFS_DELEG_PERM_NONE ""
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#define ZFS_DELEG_PERM_CREATE "create"
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#define ZFS_DELEG_PERM_DESTROY "destroy"
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#define ZFS_DELEG_PERM_SNAPSHOT "snapshot"
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#define ZFS_DELEG_PERM_ROLLBACK "rollback"
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#define ZFS_DELEG_PERM_CLONE "clone"
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#define ZFS_DELEG_PERM_PROMOTE "promote"
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#define ZFS_DELEG_PERM_RENAME "rename"
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#define ZFS_DELEG_PERM_MOUNT "mount"
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#define ZFS_DELEG_PERM_SHARE "share"
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#define ZFS_DELEG_PERM_SEND "send"
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#define ZFS_DELEG_PERM_RECEIVE "receive"
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#define ZFS_DELEG_PERM_RECEIVE_APPEND "receive:append"
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#define ZFS_DELEG_PERM_ALLOW "allow"
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#define ZFS_DELEG_PERM_USERPROP "userprop"
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#define ZFS_DELEG_PERM_VSCAN "vscan"
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#define ZFS_DELEG_PERM_USERQUOTA "userquota"
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#define ZFS_DELEG_PERM_GROUPQUOTA "groupquota"
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#define ZFS_DELEG_PERM_USEROBJQUOTA "userobjquota"
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#define ZFS_DELEG_PERM_GROUPOBJQUOTA "groupobjquota"
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#define ZFS_DELEG_PERM_USERUSED "userused"
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#define ZFS_DELEG_PERM_GROUPUSED "groupused"
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#define ZFS_DELEG_PERM_USEROBJUSED "userobjused"
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#define ZFS_DELEG_PERM_GROUPOBJUSED "groupobjused"
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#define ZFS_DELEG_PERM_HOLD "hold"
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#define ZFS_DELEG_PERM_RELEASE "release"
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#define ZFS_DELEG_PERM_DIFF "diff"
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#define ZFS_DELEG_PERM_BOOKMARK "bookmark"
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#define ZFS_DELEG_PERM_LOAD_KEY "load-key"
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#define ZFS_DELEG_PERM_CHANGE_KEY "change-key"
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#define ZFS_DELEG_PERM_PROJECTUSED "projectused"
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#define ZFS_DELEG_PERM_PROJECTQUOTA "projectquota"
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#define ZFS_DELEG_PERM_PROJECTOBJUSED "projectobjused"
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#define ZFS_DELEG_PERM_PROJECTOBJQUOTA "projectobjquota"
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/*
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* Note: the names of properties that are marked delegatable are also
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* valid delegated permissions
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*/
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int dsl_deleg_get(const char *ddname, nvlist_t **nvp);
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int dsl_deleg_set(const char *ddname, nvlist_t *nvp, boolean_t unset);
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int dsl_deleg_access(const char *ddname, const char *perm, cred_t *cr);
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int dsl_deleg_access_impl(struct dsl_dataset *ds, const char *perm, cred_t *cr);
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void dsl_deleg_set_create_perms(dsl_dir_t *dd, dmu_tx_t *tx, cred_t *cr);
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int dsl_deleg_can_allow(char *ddname, nvlist_t *nvp, cred_t *cr);
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int dsl_deleg_can_unallow(char *ddname, nvlist_t *nvp, cred_t *cr);
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int dsl_deleg_destroy(objset_t *os, uint64_t zapobj, dmu_tx_t *tx);
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boolean_t dsl_delegation_on(objset_t *os);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _SYS_DSL_DELEG_H */
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