LibIpv6_ExternalFunctions.ttcn

/*
 *	@author 	STF 276
 *  @version 	$Id$
 *	@desc		This module collects external functions available
 *              to any function implementation in the IPv6 lirbary or
 *              ATS. Notice that the test case execution is only possible
 *              if a Platform Adapter with their implementation is used
 *              by the test system.
 */
 module LibIpv6_ExternalFunctions {
	
	//LibCommon
	import from LibCommon_BasicTypesAndValues all;
	import from LibCommon_DataStrings all;
	//LibIpv6
	import from LibIpv6_MultiRfcs_TypesAndValues { type all };
	import from LibIpv6_Interface { type Ipv6Packet };


	/* @desc    This external function calculates the payload length
	**			of a IPv6 packet
	** @param   p_msg Ipv6 packet
	** @return  payload length in bytes
	*/
	external function fx_payloadLength( in template Ipv6Packet p_msg ) 
	return UInt16;

	/* @desc   This external function calculates the checksum for any
	**         IPv6 packet which contains an ICMP message as its payload.
	** @param  p_packet ICMPv6 packet 
	** @return checksum value 
	*/
	external function fx_icmpv6Checksum( in template Ipv6Packet p_packet) 
	return Oct2;
	
	external function fx_encodeMessage (in template Ipv6Packet p_msg)
	return octetstring;

	
}// end module LibIpv6_ExternalFunctions