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/* $OpenBSD: ike_main_mode.c,v 1.12 2003/06/03 14:28:16 ho 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.
*
* 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);
}
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