library/OPCAP_CodecPort.ttcn

module OPCAP_CodecPort {

/* Simple OPCAP Codec Port, translating between raw TCP octetstring payload
 * towards the IPL4asp port provider, and OPCAP primitives
 * which carry the decoded OPCAP data types as payload.
 *
 * (C) 2021 by Harald Welte <laforge@gnumonks.org>
 * All rights reserved.
 *
 * Released under the terms of GNU General Public License, Version 2 or
 * (at your option) any later version.
 */


import from IPL4asp_PortType all;
import from IPL4asp_Types all;
import from OPCAP_Types all;

type record OPCAP_RecvFrom {
	ConnectionId	connId,
	OPCAP_PDU	msg
}

type record OPCAP_Send {
	ConnectionId	connId,
	OPCAP_PDU	msg
}

template (value) OPCAP_Send ts_OPCAP_Send(ConnectionId conn_id, template (value) OPCAP_PDU msg) := {
	connId := conn_id,
	msg := msg
}

template OPCAP_RecvFrom tr_OPCAP_Recv(template ConnectionId conn_id, template OPCAP_PDU msg) := {
	connId := conn_id,
	msg := msg
}

private function IPL4_to_OPCAP_RecvFrom(in ASP_RecvFrom pin, out OPCAP_RecvFrom pout) {
	pout.connId := pin.connId;
	pout.msg := dec_OPCAP_PDU(pin.msg);
} with { extension "prototype(fast)" }

private function OPCAP_to_IPL4_Send(in OPCAP_Send pin, out ASP_Send pout) {
	pout.connId := pin.connId;
	pout.proto := { tcp := {} };
	pout.msg := enc_OPCAP_PDU(pin.msg);
} with { extension "prototype(fast)" }

type port OPCAP_CODEC_PT message {
	out	OPCAP_Send;
	in	OPCAP_RecvFrom,
		ASP_ConnId_ReadyToRelease,
		ASP_Event;
} with { extension "user IPL4asp_PT
	out(OPCAP_Send -> ASP_Send: function(OPCAP_to_IPL4_Send))
	in(ASP_RecvFrom -> OPCAP_RecvFrom: function(IPL4_to_OPCAP_RecvFrom);
	   ASP_ConnId_ReadyToRelease -> ASP_ConnId_ReadyToRelease: simple;
	   ASP_Event -> ASP_Event: simple)"
}



}