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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
96 lines
2.5 KiB
C
96 lines
2.5 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 2010 Nexenta Systems, Inc. All rights reserved.
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* Copyright (c) 2013 by Delphix. All rights reserved.
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*/
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#ifndef _ZFS_DELEG_H
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#define _ZFS_DELEG_H
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#include <sys/fs/zfs.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_SET_NAME_CHR '@' /* set name lead char */
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#define ZFS_DELEG_FIELD_SEP_CHR '$' /* field separator */
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/*
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* Max name length for a delegation attribute
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*/
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#define ZFS_MAX_DELEG_NAME 128
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#define ZFS_DELEG_LOCAL 'l'
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#define ZFS_DELEG_DESCENDENT 'd'
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#define ZFS_DELEG_NA '-'
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typedef enum {
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ZFS_DELEG_NOTE_CREATE,
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ZFS_DELEG_NOTE_DESTROY,
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ZFS_DELEG_NOTE_SNAPSHOT,
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ZFS_DELEG_NOTE_ROLLBACK,
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ZFS_DELEG_NOTE_CLONE,
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ZFS_DELEG_NOTE_PROMOTE,
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ZFS_DELEG_NOTE_RENAME,
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ZFS_DELEG_NOTE_SEND,
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ZFS_DELEG_NOTE_RECEIVE,
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ZFS_DELEG_NOTE_ALLOW,
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ZFS_DELEG_NOTE_USERPROP,
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ZFS_DELEG_NOTE_MOUNT,
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ZFS_DELEG_NOTE_SHARE,
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ZFS_DELEG_NOTE_USERQUOTA,
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ZFS_DELEG_NOTE_GROUPQUOTA,
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ZFS_DELEG_NOTE_USERUSED,
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ZFS_DELEG_NOTE_GROUPUSED,
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ZFS_DELEG_NOTE_USEROBJQUOTA,
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ZFS_DELEG_NOTE_GROUPOBJQUOTA,
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ZFS_DELEG_NOTE_USEROBJUSED,
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ZFS_DELEG_NOTE_GROUPOBJUSED,
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ZFS_DELEG_NOTE_HOLD,
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ZFS_DELEG_NOTE_RELEASE,
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ZFS_DELEG_NOTE_DIFF,
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ZFS_DELEG_NOTE_BOOKMARK,
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ZFS_DELEG_NOTE_LOAD_KEY,
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ZFS_DELEG_NOTE_CHANGE_KEY,
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ZFS_DELEG_NOTE_NONE
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} zfs_deleg_note_t;
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typedef struct zfs_deleg_perm_tab {
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char *z_perm;
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zfs_deleg_note_t z_note;
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} zfs_deleg_perm_tab_t;
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extern zfs_deleg_perm_tab_t zfs_deleg_perm_tab[];
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int zfs_deleg_verify_nvlist(nvlist_t *nvlist);
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void zfs_deleg_whokey(char *attr, zfs_deleg_who_type_t type,
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char checkflag, void *data);
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const char *zfs_deleg_canonicalize_perm(const char *perm);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _ZFS_DELEG_H */
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