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
|
/*
* Copyright (C) 2006-2008 Martin Willi
* 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.
*
* $Id$
*/
#include "ike_cert_post.h"
#include <daemon.h>
#include <sa/ike_sa.h>
#include <encoding/payloads/cert_payload.h>
#include <encoding/payloads/certreq_payload.h>
#include <credentials/certificates/x509.h>
typedef struct private_ike_cert_post_t private_ike_cert_post_t;
/**
* Private members of a ike_cert_post_t task.
*/
struct private_ike_cert_post_t {
/**
* Public methods and task_t interface.
*/
ike_cert_post_t public;
/**
* Assigned IKE_SA.
*/
ike_sa_t *ike_sa;
/**
* Are we the initiator?
*/
bool initiator;
};
/**
* add certificates to message
*/
static void build_certs(private_ike_cert_post_t *this, message_t *message)
{
peer_cfg_t *peer_cfg;
peer_cfg = this->ike_sa->get_peer_cfg(this->ike_sa);
if (peer_cfg && peer_cfg->get_auth_method(peer_cfg) == AUTH_RSA)
{
switch (peer_cfg->get_cert_policy(peer_cfg))
{
case CERT_NEVER_SEND:
break;
case CERT_SEND_IF_ASKED:
if (!this->ike_sa->has_condition(this->ike_sa, COND_CERTREQ_SEEN))
{
break;
}
/* FALL */
case CERT_ALWAYS_SEND:
{
cert_payload_t *payload;
enumerator_t *enumerator;
certificate_t *cert;
auth_info_t *auth;
auth_item_t item;
auth = this->ike_sa->get_my_auth(this->ike_sa);
/* get subject cert first, then issuing certificates */
if (!auth->get_item(auth, AUTHZ_SUBJECT_CERT, (void**)&cert))
{
break;
}
payload = cert_payload_create_from_cert(cert);
if (!payload)
{
break;
}
DBG1(DBG_IKE, "sending end entity cert \"%D\"",
cert->get_subject(cert));
message->add_payload(message, (payload_t*)payload);
enumerator = auth->create_item_enumerator(auth);
while (enumerator->enumerate(enumerator, &item, &cert))
{
if (item == AUTHZ_IM_CERT)
{
payload = cert_payload_create_from_cert(cert);
if (payload)
{
DBG1(DBG_IKE, "sending issuer cert \"%D\"",
cert->get_subject(cert));
message->add_payload(message, (payload_t*)payload);
}
}
}
enumerator->destroy(enumerator);
}
}
}
}
/**
* Implementation of task_t.process for initiator
*/
static status_t build_i(private_ike_cert_post_t *this, message_t *message)
{
if (message->get_exchange_type(message) == IKE_SA_INIT)
{
return NEED_MORE;
}
build_certs(this, message);
return SUCCESS;
}
/**
* Implementation of task_t.process for responder
*/
static status_t process_r(private_ike_cert_post_t *this, message_t *message)
{
return NEED_MORE;
}
/**
* Implementation of task_t.build for responder
*/
static status_t build_r(private_ike_cert_post_t *this, message_t *message)
{
if (message->get_exchange_type(message) == IKE_SA_INIT)
{
return NEED_MORE;
}
build_certs(this, message);
return SUCCESS;
}
/**
* Implementation of task_t.process for initiator
*/
static status_t process_i(private_ike_cert_post_t *this, message_t *message)
{
if (message->get_exchange_type(message) == IKE_SA_INIT)
{
return NEED_MORE;
}
return SUCCESS;
}
/**
* Implementation of task_t.get_type
*/
static task_type_t get_type(private_ike_cert_post_t *this)
{
return IKE_CERT_POST;
}
/**
* Implementation of task_t.migrate
*/
static void migrate(private_ike_cert_post_t *this, ike_sa_t *ike_sa)
{
this->ike_sa = ike_sa;
}
/**
* Implementation of task_t.destroy
*/
static void destroy(private_ike_cert_post_t *this)
{
free(this);
}
/*
* Described in header.
*/
ike_cert_post_t *ike_cert_post_create(ike_sa_t *ike_sa, bool initiator)
{
private_ike_cert_post_t *this = malloc_thing(private_ike_cert_post_t);
this->public.task.get_type = (task_type_t(*)(task_t*))get_type;
this->public.task.migrate = (void(*)(task_t*,ike_sa_t*))migrate;
this->public.task.destroy = (void(*)(task_t*))destroy;
if (initiator)
{
this->public.task.build = (status_t(*)(task_t*,message_t*))build_i;
this->public.task.process = (status_t(*)(task_t*,message_t*))process_i;
}
else
{
this->public.task.build = (status_t(*)(task_t*,message_t*))build_r;
this->public.task.process = (status_t(*)(task_t*,message_t*))process_r;
}
this->ike_sa = ike_sa;
this->initiator = initiator;
return &this->public;
}
|
