dmu.h revision 1b8adde7ba7d5e04395c141c5400dc2cffd7d809
1/*
2 *  GRUB  --  GRand Unified Bootloader
3 *  Copyright (C) 1999,2000,2001,2002,2003,2004  Free Software Foundation, Inc.
4 *
5 *  This program is free software; you can redistribute it and/or modify
6 *  it under the terms of the GNU General Public License as published by
7 *  the Free Software Foundation; either version 2 of the License, or
8 *  (at your option) any later version.
9 *
10 *  This program is distributed in the hope that it will be useful,
11 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
12 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13 *  GNU General Public License for more details.
14 *
15 *  You should have received a copy of the GNU General Public License
16 *  along with this program; if not, write to the Free Software
17 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18 */
19/*
20 * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
21 * Use is subject to license terms.
22 */
23
24#ifndef	_SYS_DMU_H
25#define	_SYS_DMU_H
26
27#pragma ident	"%Z%%M%	%I%	%E% SMI"
28
29/*
30 * This file describes the interface that the DMU provides for its
31 * consumers.
32 *
33 * The DMU also interacts with the SPA.  That interface is described in
34 * dmu_spa.h.
35 */
36typedef enum dmu_object_type {
37	DMU_OT_NONE,
38	/* general: */
39	DMU_OT_OBJECT_DIRECTORY,	/* ZAP */
40	DMU_OT_OBJECT_ARRAY,		/* UINT64 */
41	DMU_OT_PACKED_NVLIST,		/* UINT8 (XDR by nvlist_pack/unpack) */
42	DMU_OT_PACKED_NVLIST_SIZE,	/* UINT64 */
43	DMU_OT_BPLIST,			/* UINT64 */
44	DMU_OT_BPLIST_HDR,		/* UINT64 */
45	/* spa: */
46	DMU_OT_SPACE_MAP_HEADER,	/* UINT64 */
47	DMU_OT_SPACE_MAP,		/* UINT64 */
48	/* zil: */
49	DMU_OT_INTENT_LOG,		/* UINT64 */
50	/* dmu: */
51	DMU_OT_DNODE,			/* DNODE */
52	DMU_OT_OBJSET,			/* OBJSET */
53	/* dsl: */
54	DMU_OT_DSL_DIR,			/* UINT64 */
55	DMU_OT_DSL_DIR_CHILD_MAP,	/* ZAP */
56	DMU_OT_DSL_DS_SNAP_MAP,		/* ZAP */
57	DMU_OT_DSL_PROPS,		/* ZAP */
58	DMU_OT_DSL_DATASET,		/* UINT64 */
59	/* zpl: */
60	DMU_OT_ZNODE,			/* ZNODE */
61	DMU_OT_ACL,			/* ACL */
62	DMU_OT_PLAIN_FILE_CONTENTS,	/* UINT8 */
63	DMU_OT_DIRECTORY_CONTENTS,	/* ZAP */
64	DMU_OT_MASTER_NODE,		/* ZAP */
65	DMU_OT_UNLINKED_SET,		/* ZAP */
66	/* zvol: */
67	DMU_OT_ZVOL,			/* UINT8 */
68	DMU_OT_ZVOL_PROP,		/* ZAP */
69	/* other; for testing only! */
70	DMU_OT_PLAIN_OTHER,		/* UINT8 */
71	DMU_OT_UINT64_OTHER,		/* UINT64 */
72	DMU_OT_ZAP_OTHER,		/* ZAP */
73	/* new object types: */
74	DMU_OT_ERROR_LOG,		/* ZAP */
75	DMU_OT_SPA_HISTORY,		/* UINT8 */
76	DMU_OT_SPA_HISTORY_OFFSETS,	/* spa_his_phys_t */
77	DMU_OT_POOL_PROPS,		/* ZAP */
78
79	DMU_OT_NUMTYPES
80} dmu_object_type_t;
81
82typedef enum dmu_objset_type {
83	DMU_OST_NONE,
84	DMU_OST_META,
85	DMU_OST_ZFS,
86	DMU_OST_ZVOL,
87	DMU_OST_OTHER,			/* For testing only! */
88	DMU_OST_ANY,			/* Be careful! */
89	DMU_OST_NUMTYPES
90} dmu_objset_type_t;
91
92/*
93 * The names of zap entries in the DIRECTORY_OBJECT of the MOS.
94 */
95#define	DMU_POOL_DIRECTORY_OBJECT	1
96#define	DMU_POOL_CONFIG			"config"
97#define	DMU_POOL_ROOT_DATASET		"root_dataset"
98#define	DMU_POOL_SYNC_BPLIST		"sync_bplist"
99#define	DMU_POOL_ERRLOG_SCRUB		"errlog_scrub"
100#define	DMU_POOL_ERRLOG_LAST		"errlog_last"
101#define	DMU_POOL_SPARES			"spares"
102#define	DMU_POOL_DEFLATE		"deflate"
103#define	DMU_POOL_HISTORY		"history"
104#define	DMU_POOL_PROPS			"pool_props"
105#define	DMU_POOL_L2CACHE		"l2cache"
106
107#endif	/* _SYS_DMU_H */
108