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  */
36 typedef 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 
82 typedef 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 
106 #endif	/* _SYS_DMU_H */
107