Create a temporary TC_NGAP_GNB_PDU_00 and review TC_NGAP_GNB_PDU_01 (52f7ca8b) · Commits · INT - Core Network and Interoperability Testing / 5G Core / NAS

etc/AtsNGAP/AtsNGAP_AMF_p_net.cfg_

+6 −6

Changes for etc/AtsNGAP/AtsNGAP_AMF_p_net.cfg_: 6 added lines, 6 removed lines.
Original line number	Diff line number	Diff line
		@@ -20,9 +20,9 @@ LibNGAP_Pics.PICS_OFFLINE_MODE := false # true for offline mode with pcap files,
		LibNGAP_Pics.PICS_USE_OPEN5GS := false # true to start open5gs, false to not start them

		LibNGAP_Pixits.PX_NAS_MCC := '999'H
		LibNGAP_Pixits.PX_NAS_MNC := '39'H
		LibNGAP_Pixits.PX_NAS_MNC := '38'H # Lab PLMN 999/38 (since 2026-10-16)
		LibNGAP_Pixits.PX_UT_PLMN_MCC := '999'H;
		LibNGAP_Pixits.PX_UT_PLMN_MNC := '39'H;
		LibNGAP_Pixits.PX_UT_PLMN_MNC := '38'H;

		LibNGAP_Pixits.PX_RAN_NODE_NAME := "gnb0012345"
		LibNGAP_Pixits.PX_GNB_ID := '00000000000000000000000000000001'B
		@@ -46,19 +46,19 @@ Lib_NG_NAS_Pixits.PX_CHECK_SECURITY := false
		Lib_NG_NAS_Pixits.PX_SUPI_FORMAT := '0000'B # IMSI format
		Lib_NG_NAS_Pixits.PX_TYPE_OF_ID := '001'B # SUCI type
		Lib_NG_NAS_Pixits.PX_SUPI_DIGITS := '00f110214300014444330302'O
		Lib_NG_NAS_Pixits.PX_MSIN := '0000000010'O;
		Lib_NG_NAS_Pixits.PX_MSIN := '0000307412'O # MSIN 0000034721 (BCD, swapped nibbles)
		Lib_NG_NAS_Pixits.PX_NETWORK_NAME := "Open5GS"

		# OP
		Lib_NG_NAS_Pixits.PX_OPERATOR_KEY := '00000000000000000000000000000000'O
		# OPc
		Lib_NG_NAS_Pixits.PX_OPERATOR_SECRET_KEY := 'E8ED289DEBA952E4283B54E88E6183CA'O
		Lib_NG_NAS_Pixits.PX_OPERATOR_SECRET_KEY := 'CFF10199EE49179F7D6F5EFEEDDA8727'O
		Lib_NG_NAS_Pixits.PX_FORCE_USING_OPERATOR_SECRET_KEY := true

		Lib_NG_NAS_Pixits.PX_SUBSCRIPTION_KEY := '01000110010110110101110011101000101100011001100110110100100111111010101001011111000010100010111011100010001110001010011010111100'B
		Lib_NG_NAS_Pixits.PX_SUBSCRIPTION_KEY := '11111111011100011100101001011001000010011000000100111010101111101111110010111110101011011001101100001011111010010111001001101100'B # FF71CA5909813ABEFCBEAD9B0BE9726C
		Lib_NG_NAS_Pixits.PX_BEARER_ID := '00001'B

		Parameters.px_IMSI_Def := '393939373030303030303030303031'H # 999700000000001
		Parameters.px_IMSI_Def := '393939333830303030303334373231'H # 999380000034721
		Parameters.px_IMEISV_Def := '7380612185615101'H
		NAS_5GC_Parameters.px_NAS_5GC_XRES_Length := 8 # In ETSI TS 135 206 V16.0.0 (2020-08) Table Table 5. f2 output, RES length is 8 octets (64 bits)

etc/AtsNGAP/AtsNGAP_GNB.cfg_

+7 −7

Changes for etc/AtsNGAP/AtsNGAP_GNB.cfg_: 7 added lines, 7 removed lines.
Original line number	Diff line number	Diff line
		@@ -14,8 +14,8 @@ LibNGAP_Pixits.PX_TIMER_T3560 := 500
		NGAP_Pics.PICS_NGAP_AMF_IUT := false
		NGAP_Pics.PICS_NGAP_GNB_IUT := true

		# Offline replay of a passing run of TC_NGAP_GNB_PDU_01 with the real gNB and UE (TODO.md item 20): both directions of N2
		# and N3 are read from captures/TC_NGAP_GNB_PDU_01.offline.pcap (system.NGAP_gNB_1, system.N3_gNB_1); the upper tester is
		# Offline replay of a passing run of TC_NGAP_GNB_PDU_00 with the real gNB and UE (TODO.md item 20): both directions of N2
		# and N3 are read from captures/TC_NGAP_GNB_PDU_00.offline.pcap (system.NGAP_gNB_1, system.N3_gNB_1); the upper tester is
		# not used. The other parameters are those of the run (AtsNGAP_GNB_p_net.cfg_), which the replayed messages depend on
		# (NAS keys, PLMN, addresses, TEIDs)
		LibNGAP_Pics.PICS_OFFLINE_MODE := true # true for offline mode with pcap files, false for online mode with SCTP server
		@@ -49,7 +49,7 @@ LibNGAP_Pixits.PX_AMF_UE_NGAP_ID := 1

		LibNGAP_Pixits.PX_TIME_ZONE := '80'O # 0x40 for GMT+1, 0x80 for GMT+2

		# User plane probe (TC_NGAP_GNB_PDU_01): the UPF tunnel endpoint given to the gNB is this host on N3, and the UE pings it
		# User plane probe (TC_NGAP_GNB_PDU_00): the UPF tunnel endpoint given to the gNB is this host on N3, and the UE pings it
		LibNGAP_Pixits.PX_TRANSPORT_LAYER_ADDRESS := '00001010101011100001001100001110'B # 10.174.19.14
		LibNGAP_Pixits.PX_UT_PING_HOST := "10.174.19.14"
		LibNGAP_Pics.PICS_USE_GTPU := true # The test system plays the UPF on N3 and checks the uplink G-PDUs (system.N3_gNB_1)
		@@ -102,10 +102,10 @@ LogEventTypes:= Yes
		# In this section you can specify parameters that are passed to Test Ports.

		# Act as AMF, listen for incoming connections from gNB
		# Offline replay (PICS_OFFLINE_MODE): N2 (SCTP) and N3 (GTP-U, UDP port 2152) of captures/TC_NGAP_GNB_PDU_01.offline.pcap,
		# Offline replay (PICS_OFFLINE_MODE): N2 (SCTP) and N3 (GTP-U, UDP port 2152) of captures/TC_NGAP_GNB_PDU_00.offline.pcap,
		# a copy of the capture of a passing run (Ethernet link type), both directions
		system.NGAP_gNB_1.params := "NGAP/SCTP_FILE/IP_OFFLINE/ETH(mac_src=000000000000,mac_dst=000000000000)/PCAP_FILE(file=../captures/TC_NGAP_GNB_PDU_01.offline.pcap,filter=sctp)"
		system.N3_gNB_1.params := "GTPU(auto_echo_reply=0)/UDP_FILE(port=2152)/IP_OFFLINE/ETH(mac_src=000000000000,mac_dst=000000000000)/PCAP_FILE(file=../captures/TC_NGAP_GNB_PDU_01.offline.pcap,filter=udp port 2152)"
		system.NGAP_gNB_1.params := "NGAP/SCTP_FILE/IP_OFFLINE/ETH(mac_src=000000000000,mac_dst=000000000000)/PCAP_FILE(file=../captures/TC_NGAP_GNB_PDU_00.offline.pcap,filter=sctp)"
		system.N3_gNB_1.params := "GTPU(auto_echo_reply=0)/UDP_FILE(port=2152)/IP_OFFLINE/ETH(mac_src=000000000000,mac_dst=000000000000)/PCAP_FILE(file=../captures/TC_NGAP_GNB_PDU_00.offline.pcap,filter=udp port 2152)"

		# Online, with the gNB under test (see AtsNGAP_GNB_p_net.cfg_): act as AMF, listen for incoming connections from the gNB
		#system.NGAP_gNB_1.params := "NGAP/SCTP(local_server=10.174.19.14,server_mode=1,local_port=38412,debug=1)"
		@@ -144,7 +144,7 @@ system.N3_gNB_1.params := "GTPU(auto_echo_reply=0)/UDP_FILE(port=2152)/IP_OFFLIN
		#AtsImsIot_TestControl.control

		# Verify that the GNB successfully processes a PDU_SESSION_RESOURCE_SETUP_REQUEST and answers with PDU_SESSION_RESOURCE_SETUP_RESPONSE for successfully established PDU session.
		NGAP_TestCases.TC_NGAP_GNB_PDU_01
		NGAP_TestCases.TC_NGAP_GNB_PDU_00
		## Verify that the NG-RAN node reports the establishment of the corresponding PDU session as failed if a PDU SESSION RESOURCE SETUP REQUEST contains several PDU Session ID IEs set to the same value.
		##NGAP_TestCases.TC_NGAP_GNB_PDU_02
		## Verify that the NG-RAN node reports the establishment of the new PDU session as failed if a PDU SESSION RESOURCE SETUP REQUEST contains a PDU Session ID IE set to value that identifies an active PDU Session. NOTE: Run TP_NGAP_GNB_PDU_01 before this TP.

etc/AtsNGAP/AtsNGAP_GNB_p_net.cfg_

+11 −10

Changes for etc/AtsNGAP/AtsNGAP_GNB_p_net.cfg_: 11 added lines, 10 removed lines.
Original line number	Diff line number	Diff line
		@@ -23,14 +23,12 @@ LibNGAP_Pics.PICS_NO_RAN_NODE_NAME := true # true
		LibNGAP_Pics.PICS_REGISTRATION_REQUEST_WITH_NO_UE_CONTEXT_REQUEST := true # true to send RegistrationRequest with no UE Context Request IE, false to send it with UE Context Request IE

		LibNGAP_Pixits.PX_NAS_MCC := '999'H
		LibNGAP_Pixits.PX_NAS_MNC := '40'H
		LibNGAP_Pixits.PX_UT_PLMN_MCC := '999'H;
		LibNGAP_Pixits.PX_UT_PLMN_MNC := '40'H;
		LibNGAP_Pixits.PX_NAS_MNC := '38'H
		LibNGAP_Pixits.PX_UT_PLMN_MCC := '999'H
		LibNGAP_Pixits.PX_UT_PLMN_MNC := '38'H

		# After its restart, the real UE (modem) is forced onto this PLMN: AT+CFUN=1, then AT+COPS=1
		LibNGAP_Pixits.PX_UT_PLMN_MANUAL_SELECT := true
		LibNGAP_Pixits.PX_UT_PLMN_MCC := '999'H
		LibNGAP_Pixits.PX_UT_PLMN_MNC := '40'H
		LibNGAP_Pixits.PX_RAN_NODE_NAME := "gnb0012345"
		LibNGAP_Pixits.PX_GNB_ID := '0000011000010010111001'B
		LibNGAP_Pixits.PX_RAN_NODE_NAME := "UERANSIM-gnb-999-70-1"
		@@ -63,22 +61,22 @@ Lib_NG_NAS_Pixits.PX_CHECK_SECURITY := true
		Lib_NG_NAS_Pixits.PX_SUPI_FORMAT := '0000'B # IMSI format
		Lib_NG_NAS_Pixits.PX_TYPE_OF_ID := '001'B # SUCI type
		Lib_NG_NAS_Pixits.PX_SUPI_DIGITS := '00f110214300014444330302'O
		Lib_NG_NAS_Pixits.PX_MSIN := '0000000010'O;
		Lib_NG_NAS_Pixits.PX_MSIN := '0000307412'O # MSIN 0000034721 (BCD, swapped nibbles)
		Lib_NG_NAS_Pixits.PX_NETWORK_NAME := "Open5GS"

		# OP
		Lib_NG_NAS_Pixits.PX_OPERATOR_KEY := '00000000000000000000000000000000'O
		# OPc
		Lib_NG_NAS_Pixits.PX_OPERATOR_SECRET_KEY := 'B4FCB931721D7BF412E4FB7AAF42E676'O
		Lib_NG_NAS_Pixits.PX_OPERATOR_SECRET_KEY := 'CFF10199EE49179F7D6F5EFEEDDA8727'O
		Lib_NG_NAS_Pixits.PX_FORCE_USING_OPERATOR_SECRET_KEY := true
		Lib_NG_NAS_Pixits.PX_SUBSCRIPTION_KEY := '11010010100110100101110000010100011110010011111101001000000101010101101100001101000111101000111110111001100011011110000111001001'B # D29A5C14793F48155B0D1E8FB98DE1C9
		Lib_NG_NAS_Pixits.PX_SUBSCRIPTION_KEY := '11111111011100011100101001011001000010011000000100111010101111101111110010111110101011011001101100001011111010010111001001101100'B # FF71CA5909813ABEFCBEAD9B0BE9726C
		Lib_NG_NAS_Pixits.PX_BEARER_ID := '00001'B
		Lib_NG_NAS_Pixits.PX_SQN := '000000000000000000000000000000000000001000000000'B
		#Lib_NG_NAS_Pixits.PX_AMF := oct2bit('8000'O)
		#Lib_NG_NAS_Pixits.PX_RAND_VALUE := oct2bit('23553cbe9637a89d218ae64dae47bf35'O)
		#Lib_NG_NAS_Pixits.PX_RAND_VALUE_REFRESH := oct2bit('9f7c8d021accf4db213ccff0c7f71a6a'O)

		Parameters.px_IMSI_Def := '393939343030303030303435363433'H # 999400000045643
		Parameters.px_IMSI_Def := '393939333830303030303334373231'H # 999380000034721
		Parameters.px_IMEISV_Def := '73806121856151f1'H
		NAS_5GC_Parameters.px_NAS_5GC_XRES_Length := 8 # In ETSI TS 135 206 V16.0.0 (2020-08) Table Table 5. f2 output, RES length is 8 octets (64 bits)

		@@ -136,8 +134,11 @@ system.utPort.params := "UT/TCP(server=10.59.0.7,port=12100,debug=1)"
		# In this section you can specify what parts of your test suite you want to execute.
		#AtsImsIot_TestControl.control

		# Complete end to end registration/deregistration procedure
		NGAP_TestCases.TC_NGAP_GNB_PDU_00

		# Verify that the GNB successfully processes a PDU_SESSION_RESOURCE_SETUP_REQUEST and answers with PDU_SESSION_RESOURCE_SETUP_RESPONSE for successfully established PDU session.
		NGAP_TestCases.TC_NGAP_GNB_PDU_01
		#NGAP_TestCases.TC_NGAP_GNB_PDU_01
		## Verify that the NG-RAN node reports the establishment of the corresponding PDU session as failed if a PDU SESSION RESOURCE SETUP REQUEST contains several PDU Session ID IEs set to the same value.
		##NGAP_TestCases.TC_NGAP_GNB_PDU_02
		## Verify that the NG-RAN node reports the establishment of the new PDU session as failed if a PDU SESSION RESOURCE SETUP REQUEST contains a PDU Session ID IE set to value that identifies an active PDU Session. NOTE: Run TP_NGAP_GNB_PDU_01 before this TP.

ttcn/AtsNGAP/NGAP_Steps.ttcn

+76 −13

Changes for ttcn/AtsNGAP/NGAP_Steps.ttcn: 76 added lines, 13 removed lines.
Original line number	Diff line number	Diff line
		@@ -1046,18 +1046,20 @@ module NGAP_Steps { // TODO FSCOM f_xxx_UE_SecurityMode to be mmoved into NAG_NG
		} // End of function fl_ping_replies_received

		/**
		* @brief Get the downlink tunnel endpoint of the gNB for a PDU session from the PDU SESSION RESOURCE SETUP
		* RESPONSE just received (vc_recvNGAP_PDU), and keep it in vc_dlGtpTunnel.
		* @details The PDU Session Resource Setup Response Transfer of the item for p_pduSessionId is decoded (aligned
		* PER, TS 38.413 clause 9.3.4.2): its DL QoS Flow per TNL Information gives the GTP tunnel.
		* @brief Decode the PDU Session Resource Setup Response Transfer of a PDU session, from the PDU SESSION RESOURCE
		* SETUP RESPONSE just received (vc_recvNGAP_PDU).
		* @details The transfer of the item for p_pduSessionId in the PDU Session Resource Setup Response List is decoded
		* (aligned PER, TS 38.413 clause 9.3.4.2).
		* @param p_pduSessionId The PDU session.
		* @return false if the response has no such item, or the tunnel cannot be decoded.
		* @param p_transfer The decoded transfer.
		* @return false if the response has no item for p_pduSessionId, or its transfer cannot be decoded.
		*/
		function f_NGAP_gnb_get_dl_gtp_tunnel(in PDUSessionID p_pduSessionId) runs on gNBNGAPComponent return boolean {
		var PDUSessionResourceSetupResponseTransfer v_transfer;
		function f_NGAP_gnb_get_setup_response_transfer(
		in PDUSessionID p_pduSessionId,
		out PDUSessionResourceSetupResponseTransfer p_transfer
		) runs on gNBNGAPComponent return boolean {
		var bitstring v_bs;

		vc_dlGtpTunnelKnown := false;
		if (not ischosen(vc_recvNGAP_PDU.successfulOutcome)) {
		return false;
		}
		@@ -1067,8 +1069,33 @@ module NGAP_Steps { // TODO FSCOM f_xxx_UE_SecurityMode to be mmoved into NAG_NG
		for (var integer j := 0; j < lengthof(v_list); j := j + 1) {
		if (v_list[j].pDUSessionID == p_pduSessionId) {
		v_bs := oct2bit(v_list[j].pDUSessionResourceSetupResponseTransfer);
		if (fx_dec_PDUSessionResourceSetupResponseTransfer(v_bs, v_transfer) != 0) {
		log("f_NGAP_gnb_get_dl_gtp_tunnel: decoding failure: ", v_list[j].pDUSessionResourceSetupResponseTransfer);
		if (fx_dec_PDUSessionResourceSetupResponseTransfer(v_bs, p_transfer) != 0) {
		log("f_NGAP_gnb_get_setup_response_transfer: decoding failure: ", v_list[j].pDUSessionResourceSetupResponseTransfer);
		return false;
		}
		log("f_NGAP_gnb_get_setup_response_transfer: ", p_transfer);
		return true;
		}
		}
		}
		}
		log("f_NGAP_gnb_get_setup_response_transfer: no setup item for PDU session ", p_pduSessionId);
		return false;
		} // End of function f_NGAP_gnb_get_setup_response_transfer

		/**
		* @brief Get the downlink tunnel endpoint of the gNB for a PDU session from the PDU SESSION RESOURCE SETUP
		* RESPONSE just received (vc_recvNGAP_PDU), and keep it in vc_dlGtpTunnel.
		* @details The DL QoS Flow per TNL Information of the PDU Session Resource Setup Response Transfer
		* (f_NGAP_gnb_get_setup_response_transfer) gives the GTP tunnel.
		* @param p_pduSessionId The PDU session.
		* @return false if the response has no such item, or the tunnel cannot be decoded.
		*/
		function f_NGAP_gnb_get_dl_gtp_tunnel(in PDUSessionID p_pduSessionId) runs on gNBNGAPComponent return boolean {
		var PDUSessionResourceSetupResponseTransfer v_transfer;

		vc_dlGtpTunnelKnown := false;
		if (not f_NGAP_gnb_get_setup_response_transfer(p_pduSessionId, v_transfer)) {
		return false;
		}
		if (not ischosen(v_transfer.dLQosFlowPerTNLInformation.uPTransportLayerInformation.gTPTunnel)) {
		@@ -1081,13 +1108,49 @@ module NGAP_Steps { // TODO FSCOM f_xxx_UE_SecurityMode to be mmoved into NAG_NG
		f_ipv4_toString(bit2oct(vc_dlGtpTunnel.transportLayerAddress)), ", TEID ", vc_dlGtpTunnel.gTP_TEID,
		" (G-PDUs are sent to the dst_ip of system.N3_gNB_1)");
		return true;
		} // End of function f_NGAP_gnb_get_dl_gtp_tunnel

		/**
		* @brief Check the PDU Session Resource Setup Response Transfer of a PDU session, as TP_NGAP_GNB_PDU_01 expects.
		* @details In the PDU SESSION RESOURCE SETUP RESPONSE just received (vc_recvNGAP_PDU), the transfer of the item for
		* p_pduSessionId (TS 38.413 clause 9.3.4.2) must carry a DL QoS Flow per TNL Information with a GTP tunnel
		* (any address and TEID: values of the gNB) and an Associated QoS Flow List holding the QoS flow p_qfi.
		* The verdict is set to fail otherwise.
		* @param p_pduSessionId The PDU session.
		* @param p_qfi The QoS flow requested in the PDU SESSION RESOURCE SETUP REQUEST.
		* @return true if the transfer conforms.
		*/
		function f_NGAP_gnb_check_setup_response_transfer(
		in PDUSessionID p_pduSessionId,
		in QosFlowIdentifier p_qfi
		) runs on gNBNGAPComponent return boolean {
		var PDUSessionResourceSetupResponseTransfer v_transfer;
		var GTPTunnel v_tunnel;

		if (not f_NGAP_gnb_get_setup_response_transfer(p_pduSessionId, v_transfer)) {
		log("* " & __SCOPE__ & ": FAIL: no decodable PDU Session Resource Setup Response Transfer for PDU session ", p_pduSessionId, " *");
		setverdict(fail, "PDU Session Resource Setup Response Transfer missing or not decodable");
		return false;
		}
		if (not ischosen(v_transfer.dLQosFlowPerTNLInformation.uPTransportLayerInformation.gTPTunnel)) {
		log("*** " & __SCOPE__ & ": FAIL: DL QoS Flow per TNL Information without GTP tunnel: ",
		v_transfer.dLQosFlowPerTNLInformation, " ***");
		setverdict(fail, "DL QoS Flow per TNL Information without GTP tunnel");
		return false;
		}
		v_tunnel := v_transfer.dLQosFlowPerTNLInformation.uPTransportLayerInformation.gTPTunnel;
		for (var integer i := 0; i < lengthof(v_transfer.dLQosFlowPerTNLInformation.associatedQosFlowList); i := i + 1) {
		if (v_transfer.dLQosFlowPerTNLInformation.associatedQosFlowList[i].qosFlowIdentifier == p_qfi) {
		log("*** " & __SCOPE__ & ": PASS: downlink tunnel ", f_ipv4_toString(bit2oct(v_tunnel.transportLayerAddress)),
		", TEID ", v_tunnel.gTP_TEID, ", associated QoS flow ", p_qfi, " ***");
		return true;
		}
		}
		log("f_NGAP_gnb_get_dl_gtp_tunnel: no setup item for PDU session ", p_pduSessionId);
		log("*** " & __SCOPE__ & ": FAIL: QoS flow ", p_qfi, " not in the Associated QoS Flow List: ",
		v_transfer.dLQosFlowPerTNLInformation.associatedQosFlowList, " ***");
		setverdict(fail, "requested QoS flow not associated");
		return false;
		} // End of function f_NGAP_gnb_get_dl_gtp_tunnel
		} // End of function f_NGAP_gnb_check_setup_response_transfer

		/**
		* @brief Offline replay (PICS_OFFLINE_MODE) of the user plane of f_NGAP_gnb_UE_ping: check the G-PDUs of the capture.
		@@ -1245,7 +1308,7 @@ module NGAP_Steps { // TODO FSCOM f_xxx_UE_SecurityMode to be mmoved into NAG_NG

		/**
		* @brief Default altstep catching the uplink NAS messages of a real UE once its PDU session is being set up.
		* @details Activated by TC_NGAP_GNB_PDU_01 from the PDU SESSION RESOURCE SETUP REQUEST (carrying the PDU
		* @details Activated by TC_NGAP_GNB_PDU_xx from the PDU SESSION RESOURCE SETUP REQUEST (carrying the PDU
		* SESSION ESTABLISHMENT ACCEPT) until the end of the test body. Any UPLINK NAS TRANSPORT received
		* meanwhile, which a_defaultNGAP would silently discard, is reported by
		* f_NGAP_gnb_report_ue_nas_message; the interrupted alt then goes on (repeat). It is activated

ttcn/AtsNGAP/NGAP_TCFunctions.ttcn

+171 −8

File changed.

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