122 lines
3.5 KiB
C
122 lines
3.5 KiB
C
/* $OpenBSD: ike_main_mode.c,v 1.19 2018/01/15 09:54:48 mpi Exp $ */
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/* $EOM: ike_main_mode.c,v 1.77 1999/04/25 22:12:34 niklas Exp $ */
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/*
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* Copyright (c) 1998, 1999 Niklas Hallqvist. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* This code was written under funding by Ericsson Radio Systems.
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*/
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#include <sys/types.h>
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#include <netinet/in.h>
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#include <stdlib.h>
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#include <string.h>
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#include "attribute.h"
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#include "conf.h"
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#include "constants.h"
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#include "crypto.h"
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#include "dh.h"
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#include "doi.h"
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#include "exchange.h"
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#include "hash.h"
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#include "ike_auth.h"
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#include "ike_main_mode.h"
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#include "ike_phase_1.h"
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#include "ipsec.h"
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#include "ipsec_doi.h"
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#include "isakmp.h"
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#include "log.h"
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#include "message.h"
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#include "prf.h"
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#include "sa.h"
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#include "transport.h"
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#include "util.h"
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static int initiator_send_ID_AUTH(struct message *);
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static int responder_send_ID_AUTH(struct message *);
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static int responder_send_KE_NONCE(struct message *);
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int (*ike_main_mode_initiator[]) (struct message *) = {
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ike_phase_1_initiator_send_SA,
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ike_phase_1_initiator_recv_SA,
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ike_phase_1_initiator_send_KE_NONCE,
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ike_phase_1_initiator_recv_KE_NONCE,
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initiator_send_ID_AUTH,
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ike_phase_1_recv_ID_AUTH
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};
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int (*ike_main_mode_responder[]) (struct message *) = {
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ike_phase_1_responder_recv_SA,
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ike_phase_1_responder_send_SA,
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ike_phase_1_recv_KE_NONCE,
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responder_send_KE_NONCE,
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ike_phase_1_recv_ID_AUTH,
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responder_send_ID_AUTH
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};
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static int
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initiator_send_ID_AUTH(struct message *msg)
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{
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msg->exchange->flags |= EXCHANGE_FLAG_ENCRYPT;
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if (ike_phase_1_send_ID(msg))
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return -1;
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if (ike_phase_1_send_AUTH(msg))
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return -1;
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return ipsec_initial_contact(msg);
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}
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/* Send our public DH value and a nonce to the initiator. */
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int
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responder_send_KE_NONCE(struct message *msg)
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{
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/* XXX Should we really just use the initiator's nonce size? */
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if (ike_phase_1_send_KE_NONCE(msg, msg->exchange->nonce_i_len))
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return -1;
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/*
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* Calculate DH values & key material in parallel with the message
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* going on a roundtrip over the wire.
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*/
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message_register_post_send(msg,
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(void (*)(struct message *))ike_phase_1_post_exchange_KE_NONCE);
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return 0;
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}
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static int
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responder_send_ID_AUTH(struct message *msg)
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{
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msg->exchange->flags |= EXCHANGE_FLAG_ENCRYPT;
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if (ike_phase_1_responder_send_ID_AUTH(msg))
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return -1;
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return ipsec_initial_contact(msg);
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}
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