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LibGtpv2C_MME_Functions.ttcn

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			/**
			* @author ETSI/STF498
			* @version $Url$
			* $Id$
			* @dec Testcases and component functions module for INT GTPv2-C protocol - MME role
			*/
			module LibGtpv2C_MME_Functions {

			// Libcommon
			import from LibCommon_BasicTypesAndValues all;
			import from LibCommon_DataStrings all;
			import from LibCommon_VerdictControl {type FncRetCode;}
			import from LibCommon_Sync all;
			import from LibCommon_Time all;

			// LibGtpv2C
			import from LibGtpv2C_TypesAndValues all;
			import from LibGtpv2C_TestSystem all;
			import from LibGtpv2C_Pics all;
			import from LibGtpv2C_Configuration all;
			import from LibGtpv2C_Templates all;

			/**
			* @desc This group contains all test case for IUT acting as a MME
			* @see ETSI TS 103 202-2 V0.0.2 (2014-03), clause 5.2.1
			*/
			group pathManagement {

			/**
			* @desc Verify the successful answering of Echo Request with Echo Response - MME role
			* @verdict pass on success, inconc on timeout, fail otherwise
			*/
			function f_TC_S11_MME_PM_01() runs on Gtpv2CComponent {

			// Local variables

			// Preamble
			f_preamble_MME();
			// Nothing to do, Echo Request is a periodic message
			f_selfOrClientSyncAndVerdict(c_prDone, e_success);
			log("* " & __SCOPE__ & ": INFO: Preamble done. *");

			// Test Body
			tc_wait.start; // Use tc_wait instead of tc_ac to wait for periodic Echo Request message
			alt {
			[] gtpv2CPort.receive(
			mw_gtpv2Ind(
			mw_gtpv2Pdu(
			mw_mheader_noteid(
			e_echoRequest
			),
			-,
			mw_gtpv2Payload_echoRequest(
			mw_gtpv2EchoRequest
			)
			)
			)
			) {
			tc_wait.stop;
			// Send echo reply
			gtpv2CPort.send(
			m_gtpv2Req_MME(
			m_gtpv2Pdu(
			m_mheader_noteid(e_echoResponse),
			m_gtpv2ExtendedHeader_noteid(f_getNextSequenceNumber()),
			m_gtpv2Payload_echoResponse(
			m_gtpv2EchoResponse(
			m_recovery(
			f_getNextRestartCounter()
			)
			)
			)
			)
			)
			);
			log("* " & testcasename() & ": PASS: Successful Echo Request Procedure *");
			f_selfOrClientSyncAndVerdict(c_tbDone, e_success);
			}
			[] tc_wait.timeout {
			log("* " & testcasename() & ": INCONC: Expected message not received *");
			f_selfOrClientSyncAndVerdict(c_tbDone, e_timeout);
			}
			} // End of 'alt' statement

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

			} // End of function f_TC_S11_MME_PM_01

			/**
			* @desc Verify the successful answering of Echo Request with Echo Response with a negative cause value - MME role
			* @verdict pass on success, inconc on timeout, fail otherwise
			*/
			function f_TC_S11_MME_PM_02() runs on Gtpv2CComponent {

			// Local variables

			// Preamble
			f_preamble_MME();
			action("Trigger MME Echo Request Procedure with an error"); // TODO To be refined
			f_selfOrClientSyncAndVerdict(c_prDone, e_success);
			log("* " & __SCOPE__ & ": INFO: Preamble done. *");

			// Test Body
			tc_ac.start;
			alt {
			[] gtpv2CPort.receive(
			mw_gtpv2Ind(
			mw_gtpv2Pdu(
			mw_mheader_noteid(
			e_echoRequest
			),
			-,
			mw_gtpv2Payload_echoRequest(
			mw_gtpv2EchoRequest
			)
			)
			)
			) {
			tc_ac.stop;
			// Send echo reply
			gtpv2CPort.send(
			m_gtpv2Req_MME(
			m_gtpv2Pdu(
			m_mheader_noteid(e_echoResponse),
			m_gtpv2ExtendedHeader_noteid(f_getNextSequenceNumber()),
			m_gtpv2Payload_echoResponse(
			m_gtpv2EchoResponse(
			m_recovery(
			f_getNextRestartCounter()
			),
			m_negative_cause(
			67 // FIXME Crete constance See 3GPP TS 29.274 version 9.11.0 Release 9 Table 8.4-1: Cause values
			)
			)
			)
			)
			)
			);
			log("* " & testcasename() & ": PASS: Unsuccessful Echo Request Procedure *");
			f_selfOrClientSyncAndVerdict(c_tbDone, e_success);
			}
			[] tc_ac.timeout {
			log("* " & testcasename() & ": INCONC: Expected message not received *");
			f_selfOrClientSyncAndVerdict(c_tbDone, e_timeout);
			}
			} // End of 'alt' statement

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

			} // End of function f_TC_S11_MME_PM_02

			/**
			* @desc Verify the GTP version that the sending entity supports. If a GTP network element receives a message of unsupported GTP version, verify that the network element returns a Version Not Supported Indication message and that it discards the received message - MME role
			* @verdict pass on success, inconc on timeout, fail otherwise
			*/
			function f_TC_S11_MME_PM_03() runs on Gtpv2CComponent {

			// Local variables

			// Preamble
			action("Trigger MME the Version Not supported Procedure"); // TODO To be refined
			f_preamble_MME();
			// Nothing to do, Echo Request is a periodic message
			f_selfOrClientSyncAndVerdict(c_prDone, e_success);
			log("* " & __SCOPE__ & ": INFO: Preamble done. *");

			// Test Body
			tc_wait.start; // Use tc_wait instead of tc_ac to wait for periodic Echo Request message
			alt {
			[] gtpv2CPort.receive(
			mw_gtpv2Ind(
			mw_gtpv2Pdu(
			mw_mheader_invalid_version
			)
			)
			) {
			tc_wait.stop;
			// Send echo reply
			gtpv2CPort.send(
			m_gtpv2Req_MME(
			m_gtpv2Pdu(
			m_mheader_noteid(e_versionNotSupported),
			m_gtpv2ExtendedHeader_noteid(f_getNextSequenceNumber()),
			m_gtpv2Payload_echoResponse(
			m_gtpv2EchoResponse(
			m_recovery(
			f_getNextRestartCounter()
			),
			m_negative_cause(
			66 // FIXME Crete constance See 3GPP TS 29.274 version 9.11.0 Release 9 Table 8.4-1: Cause values
			)
			)
			)
			)
			)
			);
			log("* " & testcasename() & ": PASS: Version Not Supported Indication *");
			f_selfOrClientSyncAndVerdict(c_tbDone, e_success);
			}
			[] tc_wait.timeout {
			log("* " & testcasename() & ": INCONC: Expected message not received *");
			f_selfOrClientSyncAndVerdict(c_tbDone, e_timeout);
			}
			} // End of 'alt' statement

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

			} // End of function f_TC_S11_MME_PM_03
			} // End of group pathManagement

			/**
			* @desc This group contains all test case for IUT acting as a MME
			* @see ETSI TS 103 202-2 V0.0.2 (2014-03), clause 5.2.2
			*/
			group tunnelManagement {

			/**
			* @desc Validate the Create Session Request/Response and the Modify Bearer Request/Response Procedure between MME and S-GW as part of the ATTACH Procedure - MME role
			* @verdict pass on success, inconc on timeout, fail otherwise
			*/
			function f_TC_S11_MME_TM_01() runs on Gtpv2CComponent {

			// Local variables

			// Preamble
			f_preamble_MME();
			// Nothing to do, Echo Request is a periodic message
			f_selfOrClientSyncAndVerdict(c_prDone, e_success);
			log("* " & __SCOPE__ & ": INFO: Preamble done. *");

			// Test Body
			tc_ac.start;
			// 1. Verify that the MME sends Create Session Request and receives the Create Session Response
			alt {
			[] gtpv2CPort.receive(
			mw_gtpv2Ind(
			mw_gtpv2Pdu(
			mw_mheader_noteid(
			e_createSessionRequest
			),
			-,
			mw_gtpv2Payload_createSessionRequest(
			mw_gtpv2CreateSessionRequest_dummy
			)
			)
			)
			) {
			tc_ac.stop;
			// Send echo reply
			gtpv2CPort.send(
			m_gtpv2Req_MME(
			m_gtpv2Pdu(
			m_mheader_noteid(e_createSessionResponse),
			m_gtpv2ExtendedHeader_noteid(f_getNextSequenceNumber()),
			m_gtpv2Payload_createSessionResponse(
			m_gtpv2createSessionResponse(
			)
			)
			)
			)
			);
			log("* " & testcasename() & ": PASS: Successful Echo Request Procedure *");
			f_selfOrClientSyncAndVerdict(c_tbDone, e_success);
			}
			[] tc_ac.timeout {
			log("* " & testcasename() & ": INCONC: Expected message not received *");
			f_selfOrClientSyncAndVerdict(c_tbDone, e_timeout);
			}
			} // End of 'alt' statement
			// 2. Verify that the MME sends Modify Bearer Request and receives the Modify Bearer Response
			// TODO
			// TODO If S1-MME used, need synchronisation point to trigger Initial Context Setup Response and Attach Commplete messages





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

			} // End of function f_TC_S11_MME_TM_01

			} // End of group tunnelManagement

			group preambules {

			/**
			* @desc Preamble function
			*/
			function f_preamble_MME() runs on Gtpv2CComponent {
			// Connect client sync port
			f_connect4SelfOrClientSync();

			// Activate defaults
			activate(a_mme_default());

			} // End of function f_preamble_MME

			} // End of group preambules

			group postambles {

			/**
			* @desc Postamble function
			*/
			function f_postamble_MME() runs on Gtpv2CComponent {
			// Deactivate all defaults
			deactivate;
			} // End of function f_postamble_MME

			} // End of group postambles

			group s1mmeTrigger {

			/**
			* @desc Trigger event on S1-MME interface
			*/
			function f_TC_S1_MME_TM_01() runs on Gtpv2CComponent {

			// Local variables

			// Preamble
			f_selfOrClientSyncAndVerdict(c_prDone, e_success);
			log("* " & __SCOPE__ & ": INFO: Preamble done. *");

			// Test Body
			if (not(PICS_SUPPORT_S1_MME_TRIGGERS)) {
			action("Switch the UE to initiate a NAS-ATTACH-REQUEST event on MME");
			} else {
			// FIXME To be developed
			}

			// Postamble
			f_selfOrClientSyncAndVerdict(c_poDone, e_success);

			} // End of function f_TC_S1_MME_TM_01

			} // End of group postambles

			group mmeAltsteps {

			/**
			* @desc Default altstep activated during the preambule
			*/
			altstep a_mme_default() runs on Gtpv2CComponent {
			[] gtpv2CPort.receive {
			log("* a_mme_default: ERROR: Received an unexpected , process it as an error *");
			f_selfOrClientSyncAndVerdict("error", e_error);
			}
			} // End of altstep a_mme_default

			} // End of group mmeAltsteps

			} // End of module LibGtpv2C_MME_Functions
			No newline at end of file

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