//
// Copyright (C) 1999,2000 Yokogawa Electric Corporation and
//                         YDC Corporation.
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//    which is related to this software (hereinafter referred to as
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// $Name:  $
//
// $Id: RTU_A_DM_RH.def,v 1.1.1.1 2000/10/31 22:39:38 sekiya Exp $
//

//
// Network topology
//                         -----> SG1_NET0
// SG1_NET2 ------> Router -----> NUT
//           NET2          NET0

#include "./RTU_A_common.def"
//======================================================================
//
// AH/ESP definition
//


//======================================================================
//
// Routing Header
//

Hdr_Routing rh_SG1N2_to_R {
	SegmentsLeft = 1;
	Address = v6(IPSEC_NUT_NET0_ADDR);
}

Hdr_Routing rh_R_to_NUT {
	SegmentsLeft = 0;
	Address = v6(IPSEC_ROUTER_NET2_ADDR);
}

Hdr_Routing rh_R_to_SG1N0 {
	SegmentsLeft = 0;
	Address = v6(IPSEC_ROUTER_NET2_ADDR);
}


//======================================================================
//
// Real packet definition with IPsec AH
//

FEM_hdr_ipv6_exth(
	ahtun_from_sg1_net2_rh_echo_request_from_host1_net4_to_host1_net1_on_net0,
	hether_router2nut,
	{
		_SRC(v6(IPSEC_SG1_NET2_ADDR));
		_DST(v6(IPSEC_NUT_NET0_ADDR));
	},
	{
		header = _HDR_IPV6_NAME(ahtun_from_sg1_net2_rh_echo_request_from_host1_net4_to_host1_net1_on_net0);
		exthdr = rh_R_to_NUT;
		exthdr = ah_from_sg_sn2;
		upper = _PACKET_IPV6_NAME(echo_request_from_host1_net4_to_host1_net1_on_net0);
	}
)


FEM_hdr_ipv6_exth(
	ahtun_from_sg1_net2_rh_real1,
	hether_router2nut,
	{
		_SRC(v6(IPSEC_SG1_NET2_ADDR));
		_DST(v6(IPSEC_SG1_NET0_ADDR));  // this address will be modified to
	//	_DST(v6(IPSEC_NUT_NET0_ADDR));    // this address in
	},
	{
		header = _HDR_IPV6_NAME(ahtun_from_sg1_net2_rh_real1);
		exthdr = rh_R_to_SG1N0;
		exthdr = ah_from_sg_sn3;
		upper = _PACKET_IPV6_NAME(echo_request_from_host1_net4_to_host1_net1_on_net0);
	}
)


FEM_hdr_ipv6_exth(
	ahtun_from_sg1_net2_rh_real2,
	hether_router2nut,
	{
		_SRC(v6(IPSEC_SG1_NET2_ADDR));
		_DST(v6(IPSEC_NUT_NET0_ADDR));
	},
	{
		header = _HDR_IPV6_NAME(ahtun_from_sg1_net2_rh_real2);
		exthdr = rh_R_to_NUT; //RH last router address will be modified
		exthdr = ah_from_sg_sn4;
		upper = _PACKET_IPV6_NAME(echo_request_from_host1_net4_to_host1_net1_on_net0);
	}
)



//======================================================================
//
// Modified packet definition with IPsec AH
//

// Common use Ether Header
Hdr_Ether hether_router2nut_0x86dd {
	SourceAddress=ether(IPSEC_ROUTER_NET0_MAC_ADDR);
	DestinationAddress=nutether();
	Type=0x86dd; // need to specify IPv6
}


// IPv6 Dst address is modified
Frame_Ether ahtun_from_sg1_net2_dm_rh_ipv6h_dst_echo_request_from_host1_net4_to_host1_net1_on_net0 {
	header=hether_router2nut_0x86dd;
	packet=ahtun_from_sg1_net2_rh_modpkt1;
}

Payload ahtun_from_sg1_net2_rh_modpkt1 {
	data=substr(ahtun_from_sg1_net2_rh_real1, 14, 38);
	data={0xb0,0xb0}; // modify dstaddr IPSEC_SG1_NET0_ADDR -> IPSEC_NUT_NET0_ADDR
	data=substr(ahtun_from_sg1_net2_rh_real1, 54, 48); //RH,AH
	data=right(ahtun_from_sg1_net2_rh_real1, 102); //Tunnel Inner packet
}


// RH last router address is modified
Frame_Ether ahtun_from_sg1_net2_dm_rh_lastaddr_echo_request_from_host1_net4_to_host1_net1_on_net0 {
	header=hether_router2nut_0x86dd;
	packet=ahtun_from_sg1_net2_rh_modpkt2;
}

Payload ahtun_from_sg1_net2_rh_modpkt2 {
	data=substr(ahtun_from_sg1_net2_rh_real2, 14, 62);
	data={0xc1,0xc1}; // modify dstaddr IPSEC_ROUTER_NET2_ADDR -> IPSEC_HOST1_NET2_ADDR
	data=substr(ahtun_from_sg1_net2_rh_real2, 78, 24); //AH
	data=right(ahtun_from_sg1_net2_rh_real2, 102); //Tunnel Inner packet
}