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module LibGtpv2C_Configuration {

    // Libcommon

    import from LibCommon_BasicTypesAndValues all;

    import from LibCommon_DataStrings all;

    import from LibCommon_VerdictControl all;

    import from LibCommon_Sync all;

    import from LibCommon_Time all;

    // LibGtpv2C

    import from LibGtpv2C_TypesAndValues all;

    import from LibGtpv2C_TestSystem all;

    import from LibGtpv2C_Templates all;

    group configurationFunctions {

        /**

         * @desc This configuration features:

         *       - Port mapping

         *       - Sync port connection

         *       - Component setup:

         *           - one SGW node (IUT)

         *           - varaibles initialisation

         * @verdict Unchanged

         */

        function f_cf01_S11Up_MME() runs on Gtpv2CComponent {

            // Map ports

            map(self:acPort, system:acPort);

            map(self:gtpv2CPort, system:gtpv2CPort);

            // Connect sync ports

            f_connect4SelfOrClientSync();

            // Activate sync default for MTC

            activate(a_mtc_shutdown());

            vc_gtpv2c_sgw := Gtpv2CComponent.create; 

            vc_sequenceNumber := 0;

            vc_restartCounter := 0;

        } // End of function f_cf01_S11Up_MME 

        /**

         * @desc This configuration features:

         *       - Port mapping

         *       - Sync port connection

         *       - Component setup:

         *           - one SGW node (IUT)

         *           - varaibles initialisation

         * @verdict Unchanged

         */

        function f_cf02_S11Up_MME() runs on Gtpv2CComponent {

            // Map ports

            map(self:acPort, system:acPort);

            map(self:gtpv2CPort, system:gtpv2CPort);

            // Connect sync ports

            f_connect4SelfOrClientSync();

            // Activate sync default for MTC

            activate(a_mtc_shutdown());

            vc_gtpv2c_sgw := Gtpv2CComponent.create; 

            vc_gtpv2c_s1mme := Gtpv2CComponent.create; 

            vc_sequenceNumber := 0;

            vc_restartCounter := 0;

        } // End of function f_cf02_S11Up_MME 

        /**

         * @desc Copmenent shutdown

         * @verdict Unchanged

         */

        function f_cf01_S11Down_MME() runs on Gtpv2CComponent {

             // De-activate all

             deactivate;

            // Disconnect sync ports

            f_disconnect4SelfOrClientSync();

            // Unmap ports

            unmap(self:acPort, system:acPort);

            unmap(self:gtpv2CPort, system:gtpv2CPort);

        } // End of function f_cf01_S11Down_MME 

        /**

         * @desc Copmenent shutdown

         * @verdict Unchanged

         */

        function f_cf02_S11Down_MME() runs on Gtpv2CComponent {

             // De-activate all

             deactivate;

            // Disconnect sync ports

            f_disconnect4SelfOrClientSync();

            // Unmap ports

            unmap(self:acPort, system:acPort);

            unmap(self:gtpv2CPort, system:gtpv2CPort);

        } // End of function f_cf01_S11Down_MME 

        /**

         * @desc This configuration features:

         *       - Port mapping

         *       - Sync port connection

         *       - Component setup:

         *           - one MME node (IUT)

         *           - one S1-MME node (UT)

         *           - varaibles initialisation

         */

        function f_cf01_S11Up_SGW() runs on Gtpv2CComponent {

            // Map ports

            map(self:acPort, system:acPort);

            map(self:gtpv2CPort, system:gtpv2CPort);

            // Connect sync ports

            f_connect4SelfOrClientSync();

            // Activate sync default for MTC

            activate(a_mtc_shutdown());

            vc_gtpv2c_mme := Gtpv2CComponent.create; 

            vc_sequenceNumber := 0;

            vc_restartCounter := 0;

        } // End of function f_cf01_S11Up_SGW 

        /**

         * @desc Copmenent shutdown

         * @verdict Unchanged

         */

        function f_cf01_S11Down_SGW() runs on Gtpv2CComponent {

             // De-activate all

             deactivate;

            // Disconnect sync ports

            f_disconnect4SelfOrClientSync();

            // Unmap ports

            unmap(self:acPort, system:acPort);

            unmap(self:gtpv2CPort, system:gtpv2CPort);

        } // End of function f_cf01_S11Down_SGW 

        /**

         * @desc Shutdown alstep in case the sync delf server is requesting shutdown

         * @verdict Unchanged

         */

        altstep a_mtc_shutdown() runs on SelfSyncComp {

            []  syncSendPort.receive(m_syncServerStop){

              tc_sync.stop ;

              log("**** a_mtc_shutdown: MTC component received STOP signal **** ");

              stop;

          }

        } // End of altstep a_mtc_shutdown

    } // End of group configurationFunctions 

    group acFuntions { 

    } // End of group acFuntions 

    /**

     * @desc Variable length information elements calculations

     * 

     * @see ETSI TS 129 274 V9.11.0 Clause 8.2 Information Element Format

     */

    group tlviVariableLengthCalculations { 

//        function f_calculateInformationElementLength_cause(in Cause p_cause) return Cause {

//            p_cause.length_ := sizeof(p_cause);

//            

//            return p_cause;

//        } // End of function f_calculateInformationElementLength_cause

    }// End of group tlviVariableLengthCalculations 

    group helperFunctions { 

        /**

         * @desc Increment and return the sequence number

         * @return The new sequence number value

         * @verdict Unchanged

         */

        function f_getNextSequenceNumber() runs on Gtpv2CComponent return UInt24 {

            vc_sequenceNumber := (vc_sequenceNumber + 1) mod c_uInt24Max;

            return vc_sequenceNumber;

        } // End of function f_getNextSequenceNumber

        /**

         * @desc Increment and return the restart counter

         * @return The new restart counter value

         * @verdict Unchanged

         */

        function f_getNextRestartCounter() runs on Gtpv2CComponent return UInt16 {

            vc_restartCounter := (vc_restartCounter + 1) mod c_uInt16Max;

            return vc_restartCounter;

        } // End of function f_getNextRestartCounter

    } // End of group helperFunctions 

} // End of module LibGtpv2C_Configuration 

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