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
|
/* $OpenBSD: ike_main_mode.c,v 1.11 1999/04/27 21:11:53 niklas Exp $ */
/* $EOM: ike_main_mode.c,v 1.77 1999/04/25 22:12:34 niklas Exp $ */
/*
* Copyright (c) 1998, 1999 Niklas Hallqvist. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Ericsson Radio Systems.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* This code was written under funding by Ericsson Radio Systems.
*/
#include <sys/types.h>
#include <netinet/in.h>
#include <stdlib.h>
#include <string.h>
#include "sysdep.h"
#include "attribute.h"
#include "conf.h"
#include "constants.h"
#include "crypto.h"
#include "dh.h"
#include "doi.h"
#include "exchange.h"
#include "hash.h"
#include "ike_auth.h"
#include "ike_main_mode.h"
#include "ike_phase_1.h"
#include "ipsec.h"
#include "ipsec_doi.h"
#include "isakmp.h"
#include "log.h"
#include "math_group.h"
#include "message.h"
#include "prf.h"
#include "sa.h"
#include "transport.h"
#include "util.h"
static int initiator_send_ID_AUTH (struct message *);
static int responder_send_ID_AUTH (struct message *);
static int responder_send_KE_NONCE (struct message *);
int (*ike_main_mode_initiator[]) (struct message *) = {
ike_phase_1_initiator_send_SA,
ike_phase_1_initiator_recv_SA,
ike_phase_1_initiator_send_KE_NONCE,
ike_phase_1_initiator_recv_KE_NONCE,
initiator_send_ID_AUTH,
ike_phase_1_recv_ID_AUTH
};
int (*ike_main_mode_responder[]) (struct message *) = {
ike_phase_1_responder_recv_SA,
ike_phase_1_responder_send_SA,
ike_phase_1_recv_KE_NONCE,
responder_send_KE_NONCE,
ike_phase_1_recv_ID_AUTH,
responder_send_ID_AUTH
};
static int
initiator_send_ID_AUTH (struct message *msg)
{
msg->exchange->flags |= EXCHANGE_FLAG_ENCRYPT;
if (ike_phase_1_send_ID (msg))
return -1;
if (ike_phase_1_send_AUTH (msg))
return -1;
return ipsec_initial_contact (msg);
}
/* Send our public DH value and a nonce to the initiator. */
int
responder_send_KE_NONCE (struct message *msg)
{
/* XXX Should we really just use the initiator's nonce size? */
if (ike_phase_1_send_KE_NONCE (msg, msg->exchange->nonce_i_len))
return -1;
/*
* Calculate DH values & key material in parallel with the message going
* on a roundtrip over the wire.
*/
message_register_post_send (msg,
(void (*) (struct message *))
ike_phase_1_post_exchange_KE_NONCE);
return 0;
}
static int
responder_send_ID_AUTH (struct message *msg)
{
msg->exchange->flags |= EXCHANGE_FLAG_ENCRYPT;
if (ike_phase_1_responder_send_ID_AUTH (msg))
return -1;
return ipsec_initial_contact (msg);
}
|
