Added initial version of TC_464XLAT_PLATLSN_MSSC_BV_001. (05ad013e) · Commits · CABLE - Integrated broadband cable telecommunication networks / CableIPv6

ttcn/Ats464XLat/Ats464XLat_Pixits.ttcn3

+5 −0

Original line number	Diff line number	Diff line
		@@ -61,4 +61,9 @@ module Ats464XLat_Pixits {

		modulepar Ipv4Address PX_PPTP_SERVER_IPV4_ADDRESS := '41d0e4df'O;

		/**
		* @desc The MSS value.
		*/
		modulepar UInt PX_464XLAT_MSS_SIZE := 1500;

		} // End of module Ats464XLat_Pixits
		No newline at end of file

ttcn/Ats464XLat/Ats464XLat_TestCases.ttcn3

+151 −0

Original line number	Diff line number	Diff line
		@@ -17,6 +17,8 @@ module Ats464XLat_TestCases {
		import from LibIpv6_Interface_TypesAndValues all;
		import from LibIpv6_Interface_Templates all;
		import from LibIpv6_Rfc2463Icmpv6_Templates all;
		import from LibIpv6_Rfc792Icmpv4_TypesAndValues all;
		import from LibIpv6_Rfc792Icmpv4_Templates all;

		// Ats464XLat
		import from Ats464XLat_Functions all;
		@@ -252,6 +254,155 @@ module Ats464XLat_TestCases {

		group validBehaviour {

		/**
		* @desc Check that the IUT functions with MSS clamping
		* @verdict pass on success, inconc on timeout, fail otherwise
		* <pre>
		* PICS Selection: none
		* Initial conditions:
		* with {
		* the physical MTU (Phy-MTU) size being equal or greater than the IPv6 packet between all devices
		* and the MTU (IPv6-MTU) being lower than the originating IPv6 packet
		* and the MSS value is below that of the TCP segment size of the incoming packet
		* }
		* Expected behaviour:
		* ensure that {
		* when {
		* the IUT receives an HTML IPv4 packet
		* containing source address
		* indicating a private IPv4 address
		* with a segment size greater than the IUT MSS value
		* }
		* then {
		* the IUT drops the packet and returns a packet-too-big message to the originator
		* }
		* }
		* </pre>
		*
		* @version 0.0.1
		* @reference ETSI TS 101 569-1 Clause 6.6 464XLAT Technology Summary
		* @see ETSI TS xxx xxx-x V0.0.1.5a-draft (2013-07) TP/464XLAT/PLAT-LSN/MSSC/VB/01
		*/
		testcase TC_464XLAT_PLATLSN_MSSC_BV_001() runs on FourSixFourXLatComponent system TestAdapter {

		// Local variables
		var Ipv4Packet v_ipv4Packet; /** IPv4 packets */

		// Test control

		// Test component configuration
		vc_lsnComponents[0] := LSNComponent.create(c_COMP_LSN);
		vc_hostComponents[0] := HostComponent.create(c_COMP_HOST);
		f_cf01Up_PLAT();

		// Test adapter configuration

		// Test Body
		// Start all components
		f_finalyzeIpv4Packet(
		m_ipv4Packet_df(
		1,
		PX_IPV4_DESTINATION_INFORMATION.iutAddress,
		PX_464XLAT_MAPPING_TABLE_1_TO_N.ip4Address,
		m_tcp_packet(
		PX_IPV4_DESTINATION_INFORMATION.iutPort,
		PX_464XLAT_MAPPING_TABLE_1_TO_N.portInfos[0].srcPort,
		m_tcpRawPayload(int2oct(42, PX_464XLAT_MSS_SIZE)),
		m_tcp_flags_syn
		)
		),
		v_ipv4Packet
		);

		vc_lsnComponents[0].start(f_TC_464XLAT_PLATLSN_MSSC_BV_001_lsn(v_ipv4Packet));
		vc_hostComponents[0].start(f_TC_464XLAT_PLATLSN_MSSC_BV_001_host());

		f_serverSyncNClientsAndStop(2, { c_prDone, c_tbDone, c_poDone });

		// Postamble
		f_down();

		} // End of testcase TC_464XLAT_PLATLSN_MSSC_BV_001

		group f_TC_464XLAT_PLATLSN_MSSC_BV_001 {

		/**
		* @desc Simulates LSN side
		* @verdict 'pass' on success, 'inconc' on 'timeout', fail otherwise
		*/
		function f_TC_464XLAT_PLATLSN_MSSC_BV_001_lsn(Ipv4Packet p_ipv4Packet) runs on LSNComponent {

		// Local variables

		// Preamble
		// Clause 'Initial conditions'
		f_preamble_lsn(p_ipv4Packet.ipv4Hdr.destinationAddress);
		f_selfOrClientSyncAndVerdict(c_prDone, e_success);
		log("* " & __SCOPE__ & ": INFO: Preamble done. *");

		// Test Body
		ipv4Port.send(p_ipv4Packet);
		tc_ac.start;
		alt {
		[] ipv4Port.receive(mw_ipv4DestinationUnreachable(
		p_ipv4Packet.ipv4Hdr.destinationAddress,
		p_ipv4Packet.ipv4Hdr.sourceAddress,
		c_ipv4IcmpCode4 //fragmentation needed and DF set
		)) {
		tc_ac.stop;
		log("* " & __SCOPE__ & ": PASS: A 'packet-too-big' was returned. *");
		f_selfOrClientSyncAndVerdict(c_tbDone, e_success);
		}
		[] tc_ac.timeout {
		log("* " & __SCOPE__ & ": PASS: NO 'packet-too-big' was returned. *");
		f_selfOrClientSyncAndVerdict(c_tbDone, e_error);
		}
		}

		// Postamble
		f_postamble_lsn();
		f_selfOrClientSyncAndVerdict(c_poDone, e_success);
		log("* " & __SCOPE__ & ": INFO: Postamble done. *");

		} // End of function f_TC_464XLAT_PLATLSN_MSSC_BV_001_lsn

		/**
		* @desc Simulates client side
		* @verdict 'pass' on success, 'inconc' on 'timeout', fail otherwise
		*/
		function f_TC_464XLAT_PLATLSN_MSSC_BV_001_host() runs on HostComponent {

		// Local variables

		// Preamble
		// Clause 'Initial conditions'
		f_preamble_host();
		f_selfOrClientSyncAndVerdict(c_prDone, e_success);
		log("* " & __SCOPE__ & ": INFO: Preamble done. *");

		// Test Body
		tc_ac.start;
		alt {
		[] ipPort.receive(Ipv6Packet:?) {
		tc_ac.stop;
		log("* " & __SCOPE__ & ": FAIL: The packet was not dropped. *");
		f_selfOrClientSyncAndVerdict(c_tbDone, e_error);
		}
		[] tc_ac.timeout {
		f_selfOrClientSyncAndVerdict(c_tbDone, e_success);
		log("* " & __SCOPE__ & ": PASS: The packet was dropped. *");
		}
		} // End of 'altstep' statement

		// Postamble
		f_postamble_host();
		f_selfOrClientSyncAndVerdict(c_poDone, e_success);
		log("* " & __SCOPE__ & ": INFO: Postamble done. *");

		} // End of function f_TC_464XLAT_PLATLSN_MSSC_BV_001_host

		} // End of group f_TC_464XLAT_PLATLSN_MSSC_BV_001

		} // End of group validBehaviour

		} // End of group mssClamping