Add NGAP UPLINK UE ASSOCIATED NRPPA TRANSPORT message encoding
Reference: 3GPP 38.413 v16.0.0 Mandatory fields: AMF UE NGAP ID (supported) RAN UE NGAP ID (supported) Routing ID (supported) NRPPa-PDU (supported)
This commit is contained in:
Rakesh Mundlamuri
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/*
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* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The OpenAirInterface Software Alliance licenses this file to You under
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* the OAI Public License, Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.openairinterface.org/?page_id=698
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*-------------------------------------------------------------------------------
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* For more information about the OpenAirInterface (OAI) Software Alliance:
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* contact@openairinterface.org
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include "assertions.h"
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#include "conversions.h"
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#include "intertask_interface.h"
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#include "ngap_common.h"
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#include "ngap_gNB_defs.h"
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#include "ngap_gNB_itti_messaging.h"
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#include "ngap_gNB_encoder.h"
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#include "ngap_gNB_nnsf.h"
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#include "ngap_gNB_ue_context.h"
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#include "ngap_gNB_management_procedures.h"
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#include "ngap_gNB_NRPPa_transport_procedures.h"
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// UPLINK UE ASSOCIATED NRPPA TRANSPORT (9.2.9.2 of TS 38.413 Version 16.0.0)
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int ngap_gNB_uplink_ue_associated_nrppa_transport(instance_t instance, const ngap_uplink_ue_associated_nrppa_t *msg)
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{
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LOG_I(NGAP, "Initiating ngap_gNB_uplink_ue_associated_nrppa_transport \n");
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DevAssert(msg != NULL);
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DevAssert(msg->routing_id.buf);
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DevAssert(msg->routing_id.len);
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DevAssert(msg->nrppa_pdu.buf);
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DevAssert(msg->nrppa_pdu.len);
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struct ngap_gNB_ue_context_s *ue_context_p = NULL;
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ngap_gNB_instance_t *ngap_gNB_instance_p = NULL;
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// Retrieve the NGAP gNB instance associated with Mod_id
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ngap_gNB_instance_p = ngap_gNB_get_instance(instance);
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DevAssert(ngap_gNB_instance_p != NULL);
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if ((ue_context_p = ngap_get_ue_context(msg->gNB_ue_ngap_id)) == NULL) {
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// The context for this gNB ue ngap id doesn't exist in the map of gNB UEs
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LOG_E(NGAP, "Failed to find ue context associated with gNB ue ngap id: %08x\n", msg->gNB_ue_ngap_id);
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return -1;
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}
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/* Prepare the NGAP message to encode */
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NGAP_NGAP_PDU_t pdu = {0};
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// IE: 9.3.1.1 Message Type UplinkUEAssociatedNRPPaTransport
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pdu.present = NGAP_NGAP_PDU_PR_initiatingMessage;
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asn1cCalloc(pdu.choice.initiatingMessage, head);
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head->procedureCode = NGAP_ProcedureCode_id_UplinkUEAssociatedNRPPaTransport;
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head->criticality = NGAP_Criticality_ignore;
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head->value.present = NGAP_InitiatingMessage__value_PR_UplinkUEAssociatedNRPPaTransport;
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NGAP_UplinkUEAssociatedNRPPaTransport_t *out = &head->value.choice.UplinkUEAssociatedNRPPaTransport;
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// IE: 9.3.3.1 AMF UE NGAP ID (mandatory)
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{
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asn1cSequenceAdd(out->protocolIEs.list, NGAP_UplinkUEAssociatedNRPPaTransportIEs_t, ie);
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ie->id = NGAP_ProtocolIE_ID_id_AMF_UE_NGAP_ID;
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ie->criticality = NGAP_Criticality_reject;
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ie->value.present = NGAP_UplinkUEAssociatedNRPPaTransportIEs__value_PR_AMF_UE_NGAP_ID;
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asn_uint642INTEGER(&ie->value.choice.AMF_UE_NGAP_ID, msg->amf_ue_ngap_id);
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}
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// IE: 9.3.3.2 RAN UE NGAP ID (mandatory)
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{
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asn1cSequenceAdd(out->protocolIEs.list, NGAP_UplinkUEAssociatedNRPPaTransportIEs_t, ie);
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ie->id = NGAP_ProtocolIE_ID_id_RAN_UE_NGAP_ID;
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ie->criticality = NGAP_Criticality_reject;
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ie->value.present = NGAP_UplinkUEAssociatedNRPPaTransportIEs__value_PR_RAN_UE_NGAP_ID;
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ie->value.choice.RAN_UE_NGAP_ID = msg->gNB_ue_ngap_id;
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}
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// IE: 9.3.3.13 Routing ID (mandatory)
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{
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asn1cSequenceAdd(out->protocolIEs.list, NGAP_UplinkUEAssociatedNRPPaTransportIEs_t, ie);
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ie->id = NGAP_ProtocolIE_ID_id_RoutingID;
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ie->criticality = NGAP_Criticality_reject;
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ie->value.present = NGAP_UplinkUEAssociatedNRPPaTransportIEs__value_PR_RoutingID;
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ie->value.choice.RoutingID.buf = msg->routing_id.buf;
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ie->value.choice.RoutingID.size = msg->routing_id.len;
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}
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// IE: 9.3.3.14 NRPPa-PDU (mandatory)
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{
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asn1cSequenceAdd(out->protocolIEs.list, NGAP_UplinkUEAssociatedNRPPaTransportIEs_t, ie);
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ie->id = NGAP_ProtocolIE_ID_id_NRPPa_PDU;
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ie->criticality = NGAP_Criticality_reject;
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ie->value.present = NGAP_UplinkUEAssociatedNRPPaTransportIEs__value_PR_NRPPa_PDU;
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ie->value.choice.NRPPa_PDU.buf = msg->nrppa_pdu.buf;
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ie->value.choice.NRPPa_PDU.size = msg->nrppa_pdu.len;
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}
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// Encode NGAP message
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uint8_t *buffer = NULL;
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uint32_t length = 0;
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if (ngap_gNB_encode_pdu(&pdu, &buffer, &length) < 0) {
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LOG_E(NGAP, "Failed to encode Uplink UE Associated NRPPa Transport\n");
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ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_NGAP_NGAP_PDU, &pdu);
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return -1;
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}
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LOG_I(NGAP, "Sending ngap_gNB_uplink_ue_associated_nrppa_transport over SCTP\n");
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// UE associated signalling -> use the allocated stream
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ngap_gNB_itti_send_sctp_data_req(ngap_gNB_instance_p->instance,
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ue_context_p->amf_ref->assoc_id,
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buffer,
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length,
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ue_context_p->tx_stream);
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ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_NGAP_NGAP_PDU, &pdu);
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return 0;
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}
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@@ -0,0 +1,28 @@
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/*
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* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
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||||
* contributor license agreements. See the NOTICE file distributed with
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||||
* this work for additional information regarding copyright ownership.
|
||||
* The OpenAirInterface Software Alliance licenses this file to You under
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* the OAI Public License, Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.openairinterface.org/?page_id=698
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*-------------------------------------------------------------------------------
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* For more information about the OpenAirInterface (OAI) Software Alliance:
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* contact@openairinterface.org
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*/
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#ifndef NGAP_GNB_NRPPA_PROCEDURES_H_
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#define NGAP_GNB_NRPPA_PROCEDURES_H_
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// UPLINK UE ASSOCIATED NRPPA TRANSPORT (9.2.9.2 of TS 38.413 Version 16.0.0)
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int ngap_gNB_uplink_ue_associated_nrppa_transport(instance_t instance, const ngap_uplink_ue_associated_nrppa_t *msg);
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#endif /* NGAP_GNB_NRPPA_PROCEDURES_H_ */
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