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/*
* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The OpenAirInterface Software Alliance licenses this file to You under
* the OAI Public License, Version 1.1 (the "License"); you may not use this file
* except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.openairinterface.org/?page_id=698
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*-------------------------------------------------------------------------------
* For more information about the OpenAirInterface (OAI) Software Alliance:
* contact@openairinterface.org
*/
/*! \file f1ap_cu_paging.c
* \brief f1ap interface paging for CU
* \author EURECOM/NTUST
* \date 2018
* \version 0.1
* \company Eurecom
* \email: navid.nikaein@eurecom.fr, bing-kai.hong@eurecom.fr
* \note
* \warning
*/
#include "f1ap_common.h"
#include "f1ap_encoder.h"
#include "f1ap_itti_messaging.h"
#include "f1ap_cu_paging.h"
extern f1ap_setup_req_t *f1ap_du_data_from_du;
int CU_send_Paging(instance_t instance, f1ap_paging_ind_t *paging) {
F1AP_F1AP_PDU_t pdu = {0};
pdu.present = F1AP_F1AP_PDU_PR_initiatingMessage;
asn1cCalloc(pdu.choice.initiatingMessage, msg);
msg->procedureCode = F1AP_ProcedureCode_id_Paging;
msg->criticality = F1AP_Criticality_reject;
msg->value.present = F1AP_InitiatingMessage__value_PR_Paging;
/* mandatory */
/* UEIdentityIndexValue */
{
asn1cSequenceAdd(msg->value.choice.Paging.protocolIEs.list,
F1AP_PagingIEs_t, ie);
ie->id = F1AP_ProtocolIE_ID_id_UEIdentityIndexValue;
ie->criticality = F1AP_Criticality_reject;
ie->value.present = F1AP_PagingIEs__value_PR_UEIdentityIndexValue;
ie->value.choice.UEIdentityIndexValue.present =
F1AP_UEIdentityIndexValue_PR_indexLength10;
UEIDENTITYINDEX_TO_BIT_STRING(
paging->ueidentityindexvalue,
&ie->value.choice.UEIdentityIndexValue.choice.indexLength10);
}
/* mandatory */
/* PagingIdentity */
{
asn1cSequenceAdd(msg->value.choice.Paging.protocolIEs.list,
F1AP_PagingIEs_t, ie);
ie->id = F1AP_ProtocolIE_ID_id_PagingIdentity;
ie->criticality = F1AP_Criticality_reject;
ie->value.present = F1AP_PagingIEs__value_PR_PagingIdentity;
ie->value.choice.PagingIdentity.present =
F1AP_PagingIdentity_PR_cNUEPagingIdentity;
asn1cCalloc(ie->value.choice.PagingIdentity.choice.cNUEPagingIdentity, id);
id->present = F1AP_CNUEPagingIdentity_PR_fiveG_S_TMSI;
FIVEG_S_TMSI_TO_BIT_STRING(paging->fiveg_s_tmsi, &id->choice.fiveG_S_TMSI);
}
/* optional */
/* PagingDRX */
{
asn1cSequenceAdd(msg->value.choice.Paging.protocolIEs.list,
F1AP_PagingIEs_t, ie);
ie->id = F1AP_ProtocolIE_ID_id_PagingDRX;
ie->criticality = F1AP_Criticality_ignore;
ie->value.present = F1AP_PagingIEs__value_PR_PagingDRX;
ie->value.choice.PagingDRX = paging->paging_drx;
}
/* mandatory */
/* PagingCell_list */
{
asn1cSequenceAdd(msg->value.choice.Paging.protocolIEs.list,
F1AP_PagingIEs_t, ie);
ie->id = F1AP_ProtocolIE_ID_id_PagingCell_List;
ie->criticality = F1AP_Criticality_reject;
ie->value.present = F1AP_PagingIEs__value_PR_PagingCell_list;
asn1cSequenceAdd(ie->value.choice.PagingCell_list,
F1AP_PagingCell_ItemIEs_t, itemies);
itemies->id = F1AP_ProtocolIE_ID_id_PagingCell_Item;
itemies->criticality = F1AP_Criticality_reject;
itemies->value.present = F1AP_PagingCell_ItemIEs__value_PR_PagingCell_Item;
F1AP_NRCGI_t *nRCGI = &itemies->value.choice.PagingCell_Item.nRCGI;
MCC_MNC_TO_PLMNID(paging->mcc, paging->mnc, paging->mnc_digit_length,
&nRCGI->pLMN_Identity);
NR_CELL_ID_TO_BIT_STRING(paging->nr_cellid, &nRCGI->nRCellIdentity);
}
uint8_t *buffer;
uint32_t len;
/* encode */
if (f1ap_encode_pdu(&pdu, &buffer, &len) < 0) {
LOG_E(F1AP, "Failed to encode F1 Paging failure\n");
ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_F1AP_F1AP_PDU, &pdu);
return -1;
}
ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_F1AP_F1AP_PDU, &pdu);
f1ap_itti_send_sctp_data_req(true, instance, buffer, len, 0);
return 0;
}