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This change incorporates three major pieces: The first change is a keystore that manages wrapping and encryption keys for encrypted datasets. These commands mostly involve manipulating the new DSL Crypto Key ZAP Objects that live in the MOS. Each encrypted dataset has its own DSL Crypto Key that is protected with a user's key. This level of indirection allows users to change their keys without re-encrypting their entire datasets. The change implements the new subcommands "zfs load-key", "zfs unload-key" and "zfs change-key" which allow the user to manage their encryption keys and settings. In addition, several new flags and properties have been added to allow dataset creation and to make mounting and unmounting more convenient. The second piece of this patch provides the ability to encrypt, decyrpt, and authenticate protected datasets. Each object set maintains a Merkel tree of Message Authentication Codes that protect the lower layers, similarly to how checksums are maintained. This part impacts the zio layer, which handles the actual encryption and generation of MACs, as well as the ARC and DMU, which need to be able to handle encrypted buffers and protected data. The last addition is the ability to do raw, encrypted sends and receives. The idea here is to send raw encrypted and compressed data and receive it exactly as is on a backup system. This means that the dataset on the receiving system is protected using the same user key that is in use on the sending side. By doing so, datasets can be efficiently backed up to an untrusted system without fear of data being compromised. Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Jorgen Lundman <lundman@lundman.net> Signed-off-by: Tom Caputi <tcaputi@datto.com> Closes #494 Closes #5769
87 lines
3.1 KiB
C
87 lines
3.1 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 http://www.opensolaris.org/os/licensing.
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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 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_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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/*
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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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