[L] Change in osmo-ttcn3-hacks[master]: WIP - gerrit-log

18 Sep 2026

pespin has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/43681?usp=email )
Change subject: WIP
......................................................................
WIP
Change-Id: I3c79ba747886add0ea8e5ea3003364eedf4c43be
TODO: see TODO in f_n11_update_sm_context()
---
M library/TS29502_Nsmf_PDUSession_Templates.ttcn
M smf/SMF_Session_CT.ttcn
M smf/SMF_Session_CT_5G.ttcn
3 files changed, 329 insertions(+), 10 deletions(-)
git pull ssh://gerrit.osmocom.org:29418/osmo-ttcn3-hacks refs/changes/81/43681/1

diff --git a/library/TS29502_Nsmf_PDUSession_Templates.ttcn b/library/TS29502_Nsmf_PDUSession_Templates.ttcn
index e34cd10..b89c5c8 100644
--- a/library/TS29502_Nsmf_PDUSession_Templates.ttcn
+++ b/library/TS29502_Nsmf_PDUSession_Templates.ttcn
@@ -253,6 +253,166 @@
    priorityUserInd := priorityUserInd
 }
+type TS29502_Nsmf_PDUSession.SmContextUpdateData.backupAmfInfo BackupAmfInfoNullable;
+type TS29502_Nsmf_PDUSession.SmContextUpdateData.n9DlForwardingTnlList N9DlForwardingTnlList;
+type TS29502_Nsmf_PDUSession.SmContextUpdateData.n9UlForwardingTnlList N9UlForwardingTnlList;
+type TS29502_Nsmf_PDUSession.SmContextUpdateData.epsBearerSetup EpsBearerContainerList;
+type TS29502_Nsmf_PDUSession.SmContextUpdateData.revokeEbiList EpsBearerIdList;
+type TS29502_Nsmf_PDUSession.SmContextUpdateData.forwardingBearerContexts ForwardingBearerContainerList;
+type TS29502_Nsmf_PDUSession.SmContextUpdateData.secondaryRatUsageDataReportContainer SecondaryRatUsageDataReportContainerList;
+type TS29502_Nsmf_PDUSession.SmContextUpdateData.qosMonitoringPdMethods QosMonitoringPdMethodList;
+
+template (value) SmContextUpdateData
+ts_SmContextUpdateData(
+	template (omit) Pei pei := omit,
+	template (omit) NfInstanceId servingNfId := omit,
+	template (omit) Guami guami := omit,
+	template (omit) PlmnIdNid servingNetwork := omit,
+	template (omit) BackupAmfInfoNullable backupAmfInfo := omit,
+	template (omit) AccessType anType := omit,
+	template (omit) AccessType additionalAnType := omit,
+	template (omit) AccessType anTypeToReactivate := omit,
+	template (omit) AccessType anTypeOfN1N2Info := omit,
+	template (omit) RatType ratType := omit,
+	template (omit) PresenceState presenceInLadn := omit,
+	template (omit) UserLocation ueLocation := omit,
+	template (omit) TimeZone ueTimeZone := omit,
+	template (omit) UserLocation addUeLocation := omit,
+	template (omit) UpCnxState upCnxState := omit,
+	template (omit) HoState hoState := omit,
+	template (omit) boolean toBeSwitched := omit,
+	template (omit) boolean failedToBeSwitched := omit,
+	template (omit) RefToBinaryData n1SmMsg := omit,
+	template (omit) RefToBinaryData n2SmInfo := omit,
+	template (omit) N2SmInfoType n2SmInfoType := omit,
+	template (omit) NgRanTargetId targetId := omit,
+	template (omit) NfInstanceId targetServingNfId := omit,
+	template (omit) Uri smContextStatusUri := omit,
+	template (omit) boolean dataForwarding := omit,
+	template (omit) TunnelInfo n9ForwardingTunnel := omit,
+	template (omit) N9DlForwardingTnlList n9DlForwardingTnlList := omit,
+	template (omit) N9UlForwardingTnlList n9UlForwardingTnlList := omit,
+	template (omit) TunnelInfo n9DlForwardingTunnel := omit,
+	template (omit) DurationSec n9InactivityTimer := omit,
+	template (omit) EpsBearerContainerList epsBearerSetup := omit,
+	template (omit) EpsBearerIdList revokeEbiList := omit,
+	template (omit) boolean release := omit,
+	template (omit) Cause cause := omit,
+	template (omit) NgApCause ngApCause := omit,
+	template (omit) FiveGMmCause fivegMmCauseValue := omit,
+	template (omit) Snssai sNssai := omit,
+	template (omit) TraceData traceData := omit,
+	template (omit) EpsInterworkingIndication epsInterworkingInd := omit,
+	template (omit) boolean anTypeCanBeChanged := omit,
+	template (omit) RefToBinaryData n2SmInfoExt1 := omit,
+	template (omit) N2SmInfoType n2SmInfoTypeExt1 := omit,
+	template (omit) MaReleaseIndication maReleaseInd := omit,
+	template (omit) boolean maNwUpgradeInd := omit,
+	template (omit) boolean maRequestInd := omit,
+	template (omit) boolean n3gPathSwitchExecutionInd := omit,
+	template (omit) ExemptionInd exemptionInd := omit,
+	template (omit) SupportedFeatures supportedFeatures := omit,
+	template (omit) MoExpDataCounter moExpDataCounter := omit,
+	template (omit) boolean extendedNasSmTimerInd := omit,
+	template (omit) Bytes forwardingFTeid := omit,
+	template (omit) ForwardingBearerContainerList forwardingBearerContexts := omit,
+	template (omit) DdnFailureSubs ddnFailureSubs := omit,
+	template (omit) boolean skipN2PduSessionResRelInd := omit,
+	template (omit) SecondaryRatUsageDataReportContainerList secondaryRatUsageDataReportContainer := omit,
+	template (omit) boolean smPolicyNotifyInd := omit,
+	template (omit) PcfUeCallbackInfo pcfUeCallbackInfo := omit,
+	template (omit) SatelliteBackhaulCategory satelliteBackhaulCat := omit,
+	template (omit) boolean cnBasedMt := omit,
+	template (omit) GeoSatelliteId geoSatelliteId := omit,
+	template (omit) SatelliteId servingSatelliteId := omit,
+	template (omit) Snssai altSnssai := omit,
+	template (omit) Snssai altHplmnSnssai := omit,
+	template (omit) boolean nsReplTerminInd := omit,
+	template (omit) boolean sliceAreaRestrictInd := omit,
+	template (omit) QosMonitoringPdSupported qosMonitoringPdSupported := omit,
+	template (omit) QosMonitoringPdMethodList qosMonitoringPdMethods := omit,
+	template (omit) QosMonitoringCongestionSupported qosMonitoringCongestionSupported := omit,
+	template (omit) AvailBitRateMonSupported availBitRateMonSupported := omit,
+	template (omit) UeLevelMeasurementsConfiguration ueLevelMeasConfig := omit,
+	template (omit) NfGroupId udmGroupId := omit,
+	template (omit) boolean amfResynchedInd := omit,
+	template (omit) boolean localOffloadingMgtAllowedInd := omit
+) := {
+	pei := pei,
+	servingNfId := servingNfId,
+	guami := guami,
+	servingNetwork := servingNetwork,
+	backupAmfInfo := backupAmfInfo,
+	anType := anType,
+	additionalAnType := additionalAnType,
+	anTypeToReactivate := anTypeToReactivate,
+	anTypeOfN1N2Info := anTypeOfN1N2Info,
+	ratType := ratType,
+	presenceInLadn := presenceInLadn,
+	ueLocation := ueLocation,
+	ueTimeZone := ueTimeZone,
+	addUeLocation := addUeLocation,
+	upCnxState := upCnxState,
+	hoState := hoState,
+	toBeSwitched := toBeSwitched,
+	failedToBeSwitched := failedToBeSwitched,
+	n1SmMsg := n1SmMsg,
+	n2SmInfo := n2SmInfo,
+	n2SmInfoType := n2SmInfoType,
+	targetId := targetId,
+	targetServingNfId := targetServingNfId,
+	smContextStatusUri := smContextStatusUri,
+	dataForwarding := dataForwarding,
+	n9ForwardingTunnel := n9ForwardingTunnel,
+	n9DlForwardingTnlList := n9DlForwardingTnlList,
+	n9UlForwardingTnlList := n9UlForwardingTnlList,
+	n9DlForwardingTunnel := n9DlForwardingTunnel,
+	n9InactivityTimer := n9InactivityTimer,
+	epsBearerSetup := epsBearerSetup,
+	revokeEbiList := revokeEbiList,
+	release := release,
+	cause := cause,
+	ngApCause := ngApCause,
+	fivegMmCauseValue := fivegMmCauseValue,
+	sNssai := sNssai,
+	traceData := traceData,
+	epsInterworkingInd := epsInterworkingInd,
+	anTypeCanBeChanged := anTypeCanBeChanged,
+	n2SmInfoExt1 := n2SmInfoExt1,
+	n2SmInfoTypeExt1 := n2SmInfoTypeExt1,
+	maReleaseInd := maReleaseInd,
+	maNwUpgradeInd := maNwUpgradeInd,
+	maRequestInd := maRequestInd,
+	n3gPathSwitchExecutionInd := n3gPathSwitchExecutionInd,
+	exemptionInd := exemptionInd,
+	supportedFeatures := supportedFeatures,
+	moExpDataCounter := moExpDataCounter,
+	extendedNasSmTimerInd := extendedNasSmTimerInd,
+	forwardingFTeid := forwardingFTeid,
+	forwardingBearerContexts := forwardingBearerContexts,
+	ddnFailureSubs := ddnFailureSubs,
+	skipN2PduSessionResRelInd := skipN2PduSessionResRelInd,
+	secondaryRatUsageDataReportContainer := secondaryRatUsageDataReportContainer,
+	smPolicyNotifyInd := smPolicyNotifyInd,
+	pcfUeCallbackInfo := pcfUeCallbackInfo,
+	satelliteBackhaulCat := satelliteBackhaulCat,
+	cnBasedMt := cnBasedMt,
+	geoSatelliteId := geoSatelliteId,
+	servingSatelliteId := servingSatelliteId,
+	altSnssai := altSnssai,
+	altHplmnSnssai := altHplmnSnssai,
+	nsReplTerminInd := nsReplTerminInd,
+	sliceAreaRestrictInd := sliceAreaRestrictInd,
+	qosMonitoringPdSupported := qosMonitoringPdSupported,
+	qosMonitoringPdMethods := qosMonitoringPdMethods,
+	qosMonitoringCongestionSupported := qosMonitoringCongestionSupported,
+	availBitRateMonSupported := availBitRateMonSupported,
+	ueLevelMeasConfig := ueLevelMeasConfig,
+	udmGroupId := udmGroupId,
+	amfResynchedInd := amfResynchedInd,
+	localOffloadingMgtAllowedInd := localOffloadingMgtAllowedInd
+}
+
 template (value) RefToBinaryData
 ts_RefToBinaryData(template (value) charstring contentId) := {
    contentId := contentId
@@ -345,4 +505,9 @@
    nid := nid
 }
+template (value) N2SmInfoType
+ts_N2SmInfoType(template (value) N2SmInfoType_enum enum_val) := {
+	enum_val := enum_val
+}
+
 }
diff --git a/smf/SMF_Session_CT.ttcn b/smf/SMF_Session_CT.ttcn
index 197717f..f7312b5 100644
--- a/smf/SMF_Session_CT.ttcn
+++ b/smf/SMF_Session_CT.ttcn
@@ -17,6 +17,8 @@
 import from DIAMETER_Templates all;
 import from DIAMETER_Emulation all;
+import from NG_NAS_TypeDefs all;
+
 import from PFCP_Types all;
 import from PFCP_Emulation all;
 import from PFCP_Templates all;
@@ -152,8 +154,25 @@
    return valueof(pfcp_pars);
 }
+type record SessionPars_Namf {
+	integer pdu_sess_id,
+	charstring ran_gtpu_ip,
+	OCT4 ran_gtpu_teid,
+	charstring cn_gtpu_ip optional,
+	OCT4 cn_gtpu_teid optional,
+	charstring ue_ip4 optional,
+	charstring ue_ip6 optional,
+	octetstring ipv6_interface_id optional
+
+};
+
+type record SessionPars_Nsmf {
+	charstring smContextRef optional
+};
+
 type record SessionPars_NGNAS {
-	OCT1 pti
+	OCT1 pti,
+	QoS_RuleList qos_rules optional
 };
/* configuration data for a given Session */
@@ -185,6 +204,8 @@
PfcpParameters pfcp_pars,
+	SessionPars_Namf namf,
+	SessionPars_Nsmf nsmf,
    SessionPars_NGNAS nas
 }
@@ -217,8 +238,22 @@
    	cca_res_code := DIAMETER_SUCCESS
    },
    pfcp_pars := pfcp_pars,
+	namf := {
+		pdu_sess_id := 1,
+		ran_gtpu_ip := mp_amf_local_ip,
+		ran_gtpu_teid := int2oct(1, 4),
+		cn_gtpu_ip := omit,
+		cn_gtpu_teid := omit,
+		ue_ip4 := omit,
+		ue_ip6 := omit,
+		ipv6_interface_id := omit
+	},
+	nsmf := {
+		smContextRef := omit
+	},
    nas := {
-		pti := '00'O
+		pti := '00'O,
+		qos_rules := omit
    }
 }
diff --git a/smf/SMF_Session_CT_5G.ttcn b/smf/SMF_Session_CT_5G.ttcn
index a7cda39..89e2f8a 100644
--- a/smf/SMF_Session_CT_5G.ttcn
+++ b/smf/SMF_Session_CT_5G.ttcn
@@ -22,8 +22,10 @@
 import from TS29502_Nsmf_PDUSession_Templates all;
 import from TS29512_Npcf_SMPolicyControl_Templates all;
+import from NGAP_Constants language "ASN.1:2002" all;
 import from NGAP_IEs all;
 import from NGAP_Types all;
+import from NGAP_Templates all;
import from NAS_CommonTypeDefs all;
 import from NG_NAS_MsgContainers all;
@@ -61,11 +63,15 @@
 const charstring Nsmf_PDUSession_path_api_prefix := "/nsmf-pdusession/v1"
 const charstring Nsmf_PDUSession_path_sm_contexts := Nsmf_PDUSession_path_api_prefix & "/sm-contexts";
-template (value) charstring ts_Nsmf_PDUSession_path_sm_contexts(template (value) charstring pdu_sess_id) :=
-	Nsmf_PDUSession_path_sm_contexts & "/" & valueof(pdu_sess_id);
+template (value) charstring ts_Nsmf_PDUSession_path_sm_contexts(template (value) charstring smContextRef) :=
+	Nsmf_PDUSession_path_sm_contexts & "/" & valueof(smContextRef);
-template (present) charstring tr_Nsmf_PDUSession_uri_sm_contexts(template charstring pdu_sess_id := pattern "\d+") :=
-	pattern Nsmf_uri_prefix & Nsmf_PDUSession_path_sm_contexts & "/" & pdu_sess_id;
+template (present) charstring tr_Nsmf_PDUSession_uri_sm_contexts(template charstring smContextRef := pattern "\d+") :=
+	pattern Nsmf_uri_prefix & Nsmf_PDUSession_path_sm_contexts & "/" & smContextRef;
+
+template (value) charstring ts_Nsmf_PDUSession_path_sm_context_modify(template (value) charstring smContextRef) :=
+	Nsmf_PDUSession_path_sm_contexts & "/" & valueof(smContextRef) & "/modify";
+
function f_n11_init() runs on SMF_Session_CT {
    f_http2_adapter_init();
@@ -110,6 +116,21 @@
    return f_HTTP2_multipart_msg_encode(parts, boundary);
 }
+function f_http2_encode_body_multipart_json_ngap(octetstring json_encoded,
+						  octetstring ngap_ecnoded,
+						  charstring boundary := "=-0EVVjxcWWFYNd1JXh1OQEg==") return octetstring
+{
+	var template (value) HTTP2_multipart_part_list parts;
+	parts := {
+		ts_HTTP2_multipart_part({ ts_HTTP2_Hdr_content_type("application/json") },
+					json_encoded),
+		ts_HTTP2_multipart_part({ ts_HTTP2_Hdr_content_id("N2SmInfo"),
+					  ts_HTTP2_Hdr_content_type("application/vnd.3gpp.ngap") },
+					ngap_ecnoded)
+	};
+	return f_HTTP2_multipart_msg_encode(parts, boundary);
+}
+
 /* Nsmf_PDUSession_CreateSMContext Request/response
  * 3GPP TS 23.502 Figure 4.3.2.2.1-1
  * 3GPP TS 29.502 6.1.3.2 */
@@ -118,7 +139,6 @@
    var template (value) NG_NAS_UL_Message_Type nas_ul_msg;
    var ProcedureTransactionIdentifier pti := f_next_pti();
    var template (value) octetstring body;
-	var integer pdu_sess_id := 1;
    var integer http2_idx;
    var integer http2_stream_id := 3;
    var template (value) HTTP2_Msg http2_tx;
@@ -129,7 +149,7 @@
    var octetstring sm_contexts_enc;
    sm_contexts := ts_SmContextCreateData(supi := "imsi-" & g_pars.imsi_str,
    				      pei := "imeisv-0790219824011594",
-					      pduSessionId := pdu_sess_id,
+					      pduSessionId := g_pars.namf.pdu_sess_id,
    				      dnn := "internet",
    				      sNssai := TS29502_Nsmf_PDUSession_Templates.ts_Snssai(1),
    				      servingNfId := "foobar",
@@ -139,12 +159,12 @@
    				      anType := ThreeGPP_ACCESS,
    				      ratType := ts_RatType(NR),
    				      ueLocation := f_ts_UserLocation(),
-					      smContextStatusUri := ts_Namf_Callback_uri_imsi_sm_context_status_id(g_pars.imsi_str, int2str(pdu_sess_id)));
+					      smContextStatusUri := ts_Namf_Callback_uri_imsi_sm_context_status_id(g_pars.imsi_str, int2str(g_pars.namf.pdu_sess_id)));
    sm_contexts_enc := f_enc_SmContextCreateData(valueof(sm_contexts));
var charstring boundary := "=-0EVVjxcWWFYNd1JXh1OQEg=="
-	nas_ul_msg := cs_NG_PDU_SESSION_ESTABLISHMENT_REQUEST(cs_NG_PDU_SessionIdV(int2oct(pdu_sess_id, 1)), pti,
+	nas_ul_msg := cs_NG_PDU_SESSION_ESTABLISHMENT_REQUEST(cs_NG_PDU_SessionIdV(int2oct(g_pars.namf.pdu_sess_id, 1)), pti,
    						      p_IntegrityProtMaxDataRate := cs_IntegrityProtMaxDataRateV('FF'O, 'FF'O),
    						      p_PDU_SessionType := cs_PDU_SessionTypeTV(c_PDU_SessionType_IPv4),
    						      p_SSC_Mode := cs_SSC_ModeTV('001'B));
@@ -201,6 +221,10 @@
    						 end_stream_flag := true,
    						 data := char2oct("{}")));
    as_http2_adapter_receive(http2_rx, http2_exp_rx, idx := http2_idx);
+	/* Store obtained smContextRef:*/
+	var charstring created_location := valueof(f_HTTP2_header_list_find_header(http2_rx.hb.headers, c_HTTP2_HDR_location));
+	g_pars.nsmf.smContextRef := regexp(created_location, Nsmf_uri_prefix & Nsmf_PDUSession_path_sm_contexts & "/(?+)", 0);
+	/* Close HTTP2 conn: */
    f_http2_adapter_close(idx := http2_idx);
/* Expect PCF to receive POST sm-policies: */
@@ -218,7 +242,61 @@
    /////////// END MUTUAL EXCLUSION ZONE ////////////
as_namf_comm_post_n1n2_messages();
+
+	f_n11_update_sm_context();
    setverdict(pass);
+}
+
+
+/* 3GPP TS 29.502 5.2.2.3 Update SM Context service operation */
+function f_n11_update_sm_context()
+runs on SMF_Session_CT {
+
+	var template (value) SmContextUpdateData sm_ctx_update;
+	var octetstring sm_ctx_update_enc;
+	var template (value) octetstring body_enc;
+	var charstring http2_boundary := "=-0EVVjxcWWFYNd1JXh1OQEg=="
+	var integer http2_idx;
+	var integer http2_stream_id := 3;
+	var template (value) HTTP2_Msg http2_tx;
+
+	sm_ctx_update := ts_SmContextUpdateData(ueLocation := f_ts_UserLocation(),
+						n2SmInfo := TS29502_Nsmf_PDUSession_Templates.ts_RefToBinaryData("N2SmInfo"),
+						n2SmInfoType := ts_N2SmInfoType(PDU_RES_SETUP_RSP));
+	sm_ctx_update_enc := f_enc_SmContextUpdateData(valueof(sm_ctx_update));
+
+	/* TODO: generate and encode ngap: */
+	var octetstring ngap_enc := f_ngap_pdu_gen_PDUSessionResourceSetupResponseTransfer();
+
+	body_enc := f_http2_encode_body_multipart_json_ngap(sm_ctx_update_enc, ngap_enc, http2_boundary);
+	http2_idx := f_http2_adapter_find_free_idx();
+	http2_tx := ts_HTTP2_Msg(http2_idx,
+				 http2_stream_id,
+				 hb := {
+					pseudo_headers := ts_HTTP2_pseudo_headers_Req(method := "POST",
+										      scheme := "http",
+										      authority := Nsmf_uri_hostport,
+										      path := ts_Nsmf_PDUSession_path_sm_context_modify(g_pars.nsmf.smContextRef)),
+					headers := {
+						ts_HTTP2_Hdr_content_type_multipart(http2_boundary),
+						ts_HTTP2_Hdr_accept("application/json"),
+						ts_HTTP2_Hdr_user_agent("ttcn3-amf"),
+						ts_HTTP2_Hdr_accept_encoding("gzip")
+					}
+				 },
+				 body := ts_HTTP2_Data_frame(http2_stream_id,
+							     end_stream_flag := true,
+							     data := body_enc));
+
+	f_http2_adapter_connect(mp_smf_hostname, mp_smf_sbi_port, mp_amf_local_ip, -1, idx := http2_idx);
+	f_http2_adapter_send(http2_tx);
+
+	/* SMF updates RAN GTPU IP addr+TEID info on UPF: */
+	as_pfcp_sess_mod_req();
+
+	/* TODO: handle:
+	 * 162	2026-09-18 16:57:13,051020703Z	127.0.0.1	33928	127.0.1.10	7777	HTTP2/JSON	585	Magic, SETTINGS[0], WINDOW_UPDATE[0], HEADERS[1]: PUT /nudm-uecm/v1/imsi-001010123456789/registrations/smf-registrations/1, DATA[1], JSON (application/json)
+	 */
    f_sleep(3.0);
 }
@@ -295,9 +373,11 @@
    		Misc_Helpers.f_shutdown(__BFILE__, __LINE__, fail,
    					log2str("Rx unexpected DL NG-NAS: ", dl_nas, " vs exp ", exp_rx_nas));
    	}
+		g_pars.nas.qos_rules := dl_nas.pdu_Session_Establishment_Accept.authorizedQoSRules.listofQoSRules;
/* Decode 3rd part: NGAP: */
    	setup_req_transf := dec_NGAP_PDUSessionResourceSetupRequestTransfer(parts[2].data);
+		f_ngap_pdu_handle_PDUSessionResourceSetupRequestTransfer(setup_req_transf);
/* Tx answer: */
    	n1n2msg_rsp := ts_N1N2MessageTransferRspData(cause := ts_N1N2MessageTransferCause(N1_N2_TRANSFER_INITIATED))
@@ -505,6 +585,45 @@
/************
+ * NGAP
+**************/
+
+/* Handle a PDUSessionResourceSetupRequestTransfer and return a Result */
+private function f_ngap_pdu_handle_PDUSessionResourceSetupRequestTransfer(NGAP_IEs.PDUSessionResourceSetupRequestTransfer setup_req_transf)
+runs on SMF_Session_CT {
+	for (var integer i := 0; i < lengthof(setup_req_transf.protocolIEs); i := i + 1) {
+		select (setup_req_transf.protocolIEs[i].id) {
+		case (id_UL_NGU_UP_TNLInformation) {
+			var UPTransportLayerInformation utli := setup_req_transf.protocolIEs[i].value_.uPTransportLayerInformation;
+			g_pars.namf.cn_gtpu_ip := f_inet_ntoa(bit2oct(utli.gTPTunnel.transportLayerAddress));
+			g_pars.namf.cn_gtpu_teid := utli.gTPTunnel.gTP_TEID;
+			}
+		case (id_QosFlowSetupRequestList) {
+			var QosFlowSetupRequestList qos_req_li := setup_req_transf.protocolIEs[i].value_.QosFlowSetupRequestList;
+			//qos_id := qos_req_li[0].qosFlowIdentifier;
+		}
+		}
+	}
+}
+
+private function f_ngap_pdu_gen_PDUSessionResourceSetupResponseTransfer()
+runs on SMF_Session_CT return octetstring {
+	var template (value) UPTransportLayerInformation utla;
+	var template (value) QosFlowPerTNLInformation qos;
+	var NGAP_IEs.PDUSessionResourceSetupResponseTransfer setup_resp_transf;
+	var integer qos_id := bit2int(g_pars.nas.qos_rules[0].u.creat.flowIdentifier);
+
+	/* Prepare Response for it: */
+	utla := m_uPTransportLayerInformation_gTPTunnel(
+			m_gTPTunnel(p_tla := oct2bit(f_inet_addr(g_pars.namf.ran_gtpu_ip)),
+					p_gtp_teid := g_pars.namf.ran_gtpu_teid));
+	qos := m_qosFlowPerTNLInformation(utla, { m_associatedQosFlowItem(qos_id) });
+	setup_resp_transf := valueof(m_pDUSessionResourceSetupResponseTransfer(qos));
+
+	return enc_NGAP_PDUSessionResourceSetupResponseTransfer(setup_resp_transf);
+}
+
+/************
 * NG NAS
 **************/
-- 
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