blob: 9707c9ec55716cf027abf815860c69351dfdb4a8 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
|
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2010 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _MDESC_IMPL_H_
#define _MDESC_IMPL_H_
#ifdef __cplusplus
extern "C" {
#endif
#define LIBMD_MAGIC 0x4d61636844657363ULL /* MachDesc */
#ifndef _ASM
/*
* Internal definitions
*/
/*
* Each MD has the following header to
* provide information about each section of the MD.
*
* There are 3 sections:
* The description list, the name table and the data block.
*
* All values are stored in network byte order.
*
* Elements in the first (description list) section are defined by their
* index location within the node block. An index is simply the byte offset
* within the block / element size (16bytes). All elements are refered to
* by their index, to avoid bugs related to alignment etc.
*
* The name_len field holds the storage length of an ASCII name, NOT the strlen.
* The header fields are written in network
* byte order.
*/
struct md_header_s {
uint32_t transport_version;
uint32_t node_blk_sz; /* size in bytes of the node block */
uint32_t name_blk_sz; /* size in bytes of the name block */
uint32_t data_blk_sz; /* size in bytes of the data block */
};
typedef struct md_header_s md_header_t;
#if defined(_BIG_ENDIAN)
#define mdtoh8(x) ((uint8_t)(x))
#define mdtoh16(x) ((uint16_t)(x))
#define mdtoh32(x) ((uint32_t)(x))
#define mdtoh64(x) ((uint64_t)(x))
#define htomd8(x) (x)
#define htomd16(x) (x)
#define htomd32(x) (x)
#define htomd64(x) (x)
#else
#define mdtoh8(x) ((uint8_t)(x))
#define mdtoh16(x) BSWAP_16((uint16_t)(x))
#define mdtoh32(x) BSWAP_32((uint32_t)(x))
#define mdtoh64(x) BSWAP_64((uint64_t)(x))
#define htomd8(x) ((uint8_t)(x))
#define htomd16(x) BSWAP_16((uint16_t)(x))
#define htomd32(x) BSWAP_32((uint32_t)(x))
#define htomd64(x) BSWAP_64((uint64_t)(x))
#endif
struct MD_ELEMENT {
uint8_t tag;
uint8_t name_len;
uint16_t _reserved;
uint32_t name_offset; /* mde_str_cookie_t */
union {
struct {
uint32_t len;
uint32_t offset;
} prop_data; /* for PROP_DATA and PROP_STR */
uint64_t prop_val; /* for PROP_VAL */
uint64_t prop_idx; /* for PROP_ARC and NODE */
} d;
};
typedef struct MD_ELEMENT md_element_t;
struct MACHINE_DESCRIPTION {
caddr_t caddr;
void *(*allocp)(size_t);
void (*freep)(void *, size_t);
md_header_t *headerp;
md_element_t *mdep;
char *namep;
uint8_t *datap;
int node_blk_size;
int name_blk_size;
int data_blk_size;
int element_count;
int node_count;
mde_cookie_t root_node;
int size;
uint64_t gen;
uint64_t md_magic;
};
typedef struct MACHINE_DESCRIPTION md_impl_t;
#define MDE_TAG(_p) mdtoh8((_p)->tag)
#define MDE_NAME(_p) mdtoh32((_p)->name_offset)
#define MDE_NAME_LEN(_p) mdtoh32((_p)->name_len)
#define MDE_PROP_DATA_OFFSET(_p) mdtoh32((_p)->d.prop_data.offset)
#define MDE_PROP_DATA_LEN(_p) mdtoh32((_p)->d.prop_data.len)
#define MDE_PROP_VALUE(_p) mdtoh64((_p)->d.prop_val)
#define MDE_PROP_INDEX(_p) mdtoh64((_p)->d.prop_idx)
extern mde_str_cookie_t md_ident_name_str(char *);
extern mde_cookie_t md_find_node_prop(md_impl_t *,
mde_cookie_t,
mde_str_cookie_t,
int);
#endif /* _ASM */
#ifdef __cplusplus
}
#endif
#endif /* _MDESC_IMPL_H_ */
|
