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
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
|
/*
* Copyright (C) 2011-2012 Sansar Choinyambuu, Andreas Steffen
* HSR Hochschule fuer Technik Rapperswil
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
#include "tcg_pts_attr_tpm_version_info.h"
#include <pa_tnc/pa_tnc_msg.h>
#include <bio/bio_writer.h>
#include <bio/bio_reader.h>
#include <utils/debug.h>
typedef struct private_tcg_pts_attr_tpm_version_info_t private_tcg_pts_attr_tpm_version_info_t;
/**
* TPM Version Information
* see section 3.11 of PTS Protocol: Binding to TNC IF-M Specification
*
* 1 2 3
* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
*
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | TPM Version Information (Variable Length) |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*
* see TPM Structure Specification Part 2, section 21.6: TPM_CAP_VERSION_INFO
*/
#define PTS_TPM_VER_INFO_SIZE 4
/**
* Private data of an tcg_pts_attr_tpm_version_info_t object.
*/
struct private_tcg_pts_attr_tpm_version_info_t {
/**
* Public members of tcg_pts_attr_tpm_version_info_t
*/
tcg_pts_attr_tpm_version_info_t public;
/**
* Vendor-specific attribute type
*/
pen_type_t type;
/**
* Attribute value
*/
chunk_t value;
/**
* Noskip flag
*/
bool noskip_flag;
/**
* TPM Version Information
*/
chunk_t tpm_version_info;
/**
* Reference count
*/
refcount_t ref;
};
METHOD(pa_tnc_attr_t, get_type, pen_type_t,
private_tcg_pts_attr_tpm_version_info_t *this)
{
return this->type;
}
METHOD(pa_tnc_attr_t, get_value, chunk_t,
private_tcg_pts_attr_tpm_version_info_t *this)
{
return this->value;
}
METHOD(pa_tnc_attr_t, get_noskip_flag, bool,
private_tcg_pts_attr_tpm_version_info_t *this)
{
return this->noskip_flag;
}
METHOD(pa_tnc_attr_t, set_noskip_flag,void,
private_tcg_pts_attr_tpm_version_info_t *this, bool noskip)
{
this->noskip_flag = noskip;
}
METHOD(pa_tnc_attr_t, build, void,
private_tcg_pts_attr_tpm_version_info_t *this)
{
bio_writer_t *writer;
if (this->value.ptr)
{
return;
}
writer = bio_writer_create(PTS_TPM_VER_INFO_SIZE);
writer->write_data(writer, this->tpm_version_info);
this->value = writer->extract_buf(writer);
writer->destroy(writer);
}
METHOD(pa_tnc_attr_t, process, status_t,
private_tcg_pts_attr_tpm_version_info_t *this, u_int32_t *offset)
{
bio_reader_t *reader;
if (this->value.len < PTS_TPM_VER_INFO_SIZE)
{
DBG1(DBG_TNC, "insufficient data for TPM Version Information");
*offset = 0;
return FAILED;
}
reader = bio_reader_create(this->value);
reader->read_data (reader, this->value.len, &this->tpm_version_info);
this->tpm_version_info = chunk_clone(this->tpm_version_info);
reader->destroy(reader);
return SUCCESS;
}
METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*,
private_tcg_pts_attr_tpm_version_info_t *this)
{
ref_get(&this->ref);
return &this->public.pa_tnc_attribute;
}
METHOD(pa_tnc_attr_t, destroy, void,
private_tcg_pts_attr_tpm_version_info_t *this)
{
if (ref_put(&this->ref))
{
free(this->value.ptr);
free(this->tpm_version_info.ptr);
free(this);
}
}
METHOD(tcg_pts_attr_tpm_version_info_t, get_tpm_version_info, chunk_t,
private_tcg_pts_attr_tpm_version_info_t *this)
{
return this->tpm_version_info;
}
METHOD(tcg_pts_attr_tpm_version_info_t, set_tpm_version_info, void,
private_tcg_pts_attr_tpm_version_info_t *this,
chunk_t tpm_version_info)
{
this->tpm_version_info = tpm_version_info;
}
/**
* Described in header.
*/
pa_tnc_attr_t *tcg_pts_attr_tpm_version_info_create(chunk_t tpm_version_info)
{
private_tcg_pts_attr_tpm_version_info_t *this;
INIT(this,
.public = {
.pa_tnc_attribute = {
.get_type = _get_type,
.get_value = _get_value,
.get_noskip_flag = _get_noskip_flag,
.set_noskip_flag = _set_noskip_flag,
.build = _build,
.process = _process,
.get_ref = _get_ref,
.destroy = _destroy,
},
.get_tpm_version_info = _get_tpm_version_info,
.set_tpm_version_info = _set_tpm_version_info,
},
.type = { PEN_TCG, TCG_PTS_TPM_VERSION_INFO },
.tpm_version_info = chunk_clone(tpm_version_info),
.ref = 1,
);
return &this->public.pa_tnc_attribute;
}
/**
* Described in header.
*/
pa_tnc_attr_t *tcg_pts_attr_tpm_version_info_create_from_data(chunk_t data)
{
private_tcg_pts_attr_tpm_version_info_t *this;
INIT(this,
.public = {
.pa_tnc_attribute = {
.get_type = _get_type,
.get_value = _get_value,
.get_noskip_flag = _get_noskip_flag,
.set_noskip_flag = _set_noskip_flag,
.build = _build,
.process = _process,
.get_ref = _get_ref,
.destroy = _destroy,
},
.get_tpm_version_info = _get_tpm_version_info,
.set_tpm_version_info = _set_tpm_version_info,
},
.type = { PEN_TCG, TCG_PTS_TPM_VERSION_INFO },
.value = chunk_clone(data),
.ref = 1,
);
return &this->public.pa_tnc_attribute;
}
|
