996 lines
48 KiB
C
996 lines
48 KiB
C
/*
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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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/*! \file x2ap_eNB_generate_messages.c
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* \brief x2ap procedures for eNB
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* \author Konstantinos Alexandris <Konstantinos.Alexandris@eurecom.fr>, Cedric Roux <Cedric.Roux@eurecom.fr>, Navid Nikaein <Navid.Nikaein@eurecom.fr>
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* \date 2018
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* \version 1.0
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*/
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#include "intertask_interface.h"
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#include "X2AP_LastVisitedCell-Item.h"
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#include "x2ap_common.h"
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#include "x2ap_eNB.h"
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#include "x2ap_eNB_generate_messages.h"
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#include "x2ap_eNB_encoder.h"
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#include "x2ap_eNB_decoder.h"
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#include "x2ap_ids.h"
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#include "x2ap_eNB_itti_messaging.h"
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#include "msc.h"
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#include "assertions.h"
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#include "conversions.h"
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int x2ap_eNB_generate_x2_setup_request(
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x2ap_eNB_instance_t *instance_p, x2ap_eNB_data_t *x2ap_eNB_data_p)
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{
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X2AP_X2AP_PDU_t pdu;
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X2AP_X2SetupRequest_t *out;
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X2AP_X2SetupRequest_IEs_t *ie;
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X2AP_PLMN_Identity_t *plmn;
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ServedCells__Member *servedCellMember;
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X2AP_GU_Group_ID_t *gu;
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uint8_t *buffer;
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uint32_t len;
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int ret = 0;
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DevAssert(instance_p != NULL);
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DevAssert(x2ap_eNB_data_p != NULL);
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x2ap_eNB_data_p->state = X2AP_ENB_STATE_WAITING;
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/* Prepare the X2AP message to encode */
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memset(&pdu, 0, sizeof(pdu));
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pdu.present = X2AP_X2AP_PDU_PR_initiatingMessage;
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pdu.choice.initiatingMessage.procedureCode = X2AP_ProcedureCode_id_x2Setup;
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pdu.choice.initiatingMessage.criticality = X2AP_Criticality_reject;
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pdu.choice.initiatingMessage.value.present = X2AP_InitiatingMessage__value_PR_X2SetupRequest;
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out = &pdu.choice.initiatingMessage.value.choice.X2SetupRequest;
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/* mandatory */
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ie = (X2AP_X2SetupRequest_IEs_t *)calloc(1, sizeof(X2AP_X2SetupRequest_IEs_t));
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ie->id = X2AP_ProtocolIE_ID_id_GlobalENB_ID;
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ie->criticality = X2AP_Criticality_reject;
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ie->value.present = X2AP_X2SetupRequest_IEs__value_PR_GlobalENB_ID;
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MCC_MNC_TO_PLMNID(instance_p->mcc, instance_p->mnc, instance_p->mnc_digit_length,
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&ie->value.choice.GlobalENB_ID.pLMN_Identity);
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ie->value.choice.GlobalENB_ID.eNB_ID.present = X2AP_ENB_ID_PR_macro_eNB_ID;
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MACRO_ENB_ID_TO_BIT_STRING(instance_p->eNB_id,
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&ie->value.choice.GlobalENB_ID.eNB_ID.choice.macro_eNB_ID);
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X2AP_INFO("%d -> %02x%02x%02x\n", instance_p->eNB_id,
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ie->value.choice.GlobalENB_ID.eNB_ID.choice.macro_eNB_ID.buf[0],
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ie->value.choice.GlobalENB_ID.eNB_ID.choice.macro_eNB_ID.buf[1],
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ie->value.choice.GlobalENB_ID.eNB_ID.choice.macro_eNB_ID.buf[2]);
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ASN_SEQUENCE_ADD(&out->protocolIEs.list, ie);
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/* mandatory */
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ie = (X2AP_X2SetupRequest_IEs_t *)calloc(1, sizeof(X2AP_X2SetupRequest_IEs_t));
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ie->id = X2AP_ProtocolIE_ID_id_ServedCells;
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ie->criticality = X2AP_Criticality_reject;
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ie->value.present = X2AP_X2SetupRequest_IEs__value_PR_ServedCells;
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{
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for (int i = 0; i<instance_p->num_cc; i++){
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servedCellMember = (ServedCells__Member *)calloc(1,sizeof(ServedCells__Member));
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{
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servedCellMember->servedCellInfo.pCI = instance_p->Nid_cell[i];
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MCC_MNC_TO_PLMNID(instance_p->mcc, instance_p->mnc, instance_p->mnc_digit_length,
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&servedCellMember->servedCellInfo.cellId.pLMN_Identity);
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MACRO_ENB_ID_TO_CELL_IDENTITY(instance_p->eNB_id,0,
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&servedCellMember->servedCellInfo.cellId.eUTRANcellIdentifier);
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INT16_TO_OCTET_STRING(instance_p->tac, &servedCellMember->servedCellInfo.tAC);
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plmn = (X2AP_PLMN_Identity_t *)calloc(1,sizeof(X2AP_PLMN_Identity_t));
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{
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MCC_MNC_TO_PLMNID(instance_p->mcc, instance_p->mnc, instance_p->mnc_digit_length, plmn);
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ASN_SEQUENCE_ADD(&servedCellMember->servedCellInfo.broadcastPLMNs.list, plmn);
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}
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if (instance_p->frame_type[i] == FDD) {
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servedCellMember->servedCellInfo.eUTRA_Mode_Info.present = X2AP_EUTRA_Mode_Info_PR_fDD;
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servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.fDD.dL_EARFCN = instance_p->fdd_earfcn_DL[i];
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servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.fDD.uL_EARFCN = instance_p->fdd_earfcn_UL[i];
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switch (instance_p->N_RB_DL[i]) {
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case 6:
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servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.fDD.uL_Transmission_Bandwidth = X2AP_Transmission_Bandwidth_bw6;
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servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.fDD.dL_Transmission_Bandwidth = X2AP_Transmission_Bandwidth_bw6;
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break;
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case 15:
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servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.fDD.uL_Transmission_Bandwidth = X2AP_Transmission_Bandwidth_bw15;
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servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.fDD.dL_Transmission_Bandwidth = X2AP_Transmission_Bandwidth_bw15;
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break;
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case 25:
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servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.fDD.uL_Transmission_Bandwidth = X2AP_Transmission_Bandwidth_bw25;
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servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.fDD.dL_Transmission_Bandwidth = X2AP_Transmission_Bandwidth_bw25;
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break;
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case 50:
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servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.fDD.uL_Transmission_Bandwidth = X2AP_Transmission_Bandwidth_bw50;
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servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.fDD.dL_Transmission_Bandwidth = X2AP_Transmission_Bandwidth_bw50;
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break;
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case 75:
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servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.fDD.uL_Transmission_Bandwidth = X2AP_Transmission_Bandwidth_bw75;
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servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.fDD.dL_Transmission_Bandwidth = X2AP_Transmission_Bandwidth_bw75;
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break;
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case 100:
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servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.fDD.uL_Transmission_Bandwidth = X2AP_Transmission_Bandwidth_bw100;
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servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.fDD.dL_Transmission_Bandwidth = X2AP_Transmission_Bandwidth_bw100;
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break;
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default:
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AssertFatal(0,"Failed: Check value for N_RB_DL/N_RB_UL");
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break;
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}
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}
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else {
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servedCellMember->servedCellInfo.eUTRA_Mode_Info.present = X2AP_EUTRA_Mode_Info_PR_tDD;
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servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.tDD.eARFCN = instance_p->fdd_earfcn_DL[i];
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switch (instance_p->subframeAssignment[i]) {
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case 0:
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servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.tDD.subframeAssignment = X2AP_SubframeAssignment_sa0;
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break;
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case 1:
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servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.tDD.subframeAssignment = X2AP_SubframeAssignment_sa1;
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break;
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case 2:
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servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.tDD.subframeAssignment = X2AP_SubframeAssignment_sa2;
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break;
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case 3:
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servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.tDD.subframeAssignment = X2AP_SubframeAssignment_sa3;
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break;
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case 4:
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servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.tDD.subframeAssignment = X2AP_SubframeAssignment_sa4;
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break;
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case 5:
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servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.tDD.subframeAssignment = X2AP_SubframeAssignment_sa5;
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break;
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case 6:
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servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.tDD.subframeAssignment = X2AP_SubframeAssignment_sa6;
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break;
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default:
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AssertFatal(0,"Failed: Check value for subframeAssignment");
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break;
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}
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switch (instance_p->specialSubframe[i]) {
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case 0:
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servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.tDD.specialSubframe_Info.specialSubframePatterns = X2AP_SpecialSubframePatterns_ssp0;
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break;
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case 1:
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servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.tDD.specialSubframe_Info.specialSubframePatterns = X2AP_SpecialSubframePatterns_ssp1;
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break;
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case 2:
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servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.tDD.specialSubframe_Info.specialSubframePatterns = X2AP_SpecialSubframePatterns_ssp2;
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break;
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case 3:
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servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.tDD.specialSubframe_Info.specialSubframePatterns = X2AP_SpecialSubframePatterns_ssp3;
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break;
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case 4:
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servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.tDD.specialSubframe_Info.specialSubframePatterns = X2AP_SpecialSubframePatterns_ssp4;
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break;
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case 5:
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servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.tDD.specialSubframe_Info.specialSubframePatterns = X2AP_SpecialSubframePatterns_ssp5;
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break;
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case 6:
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servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.tDD.specialSubframe_Info.specialSubframePatterns = X2AP_SpecialSubframePatterns_ssp6;
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break;
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case 7:
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servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.tDD.specialSubframe_Info.specialSubframePatterns = X2AP_SpecialSubframePatterns_ssp7;
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break;
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case 8:
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servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.tDD.specialSubframe_Info.specialSubframePatterns = X2AP_SpecialSubframePatterns_ssp8;
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break;
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default:
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AssertFatal(0,"Failed: Check value for subframeAssignment");
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break;
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}
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servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.tDD.specialSubframe_Info.cyclicPrefixDL=X2AP_CyclicPrefixDL_normal;
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servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.tDD.specialSubframe_Info.cyclicPrefixUL=X2AP_CyclicPrefixUL_normal;
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switch (instance_p->N_RB_DL[i]) {
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case 6:
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servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.tDD.transmission_Bandwidth = X2AP_Transmission_Bandwidth_bw6;
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break;
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case 15:
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servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.tDD.transmission_Bandwidth = X2AP_Transmission_Bandwidth_bw15;
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break;
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case 25:
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servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.tDD.transmission_Bandwidth = X2AP_Transmission_Bandwidth_bw25;
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break;
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case 50:
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servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.tDD.transmission_Bandwidth = X2AP_Transmission_Bandwidth_bw50;
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break;
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case 75:
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servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.tDD.transmission_Bandwidth = X2AP_Transmission_Bandwidth_bw75;
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break;
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case 100:
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servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.tDD.transmission_Bandwidth = X2AP_Transmission_Bandwidth_bw100;
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break;
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default:
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AssertFatal(0,"Failed: Check value for N_RB_DL/N_RB_UL");
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break;
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}
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}
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}
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ASN_SEQUENCE_ADD(&ie->value.choice.ServedCells.list, servedCellMember);
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}
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}
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ASN_SEQUENCE_ADD(&out->protocolIEs.list, ie);
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/* mandatory */
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ie = (X2AP_X2SetupRequest_IEs_t *)calloc(1, sizeof(X2AP_X2SetupRequest_IEs_t));
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ie->id = X2AP_ProtocolIE_ID_id_GUGroupIDList;
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ie->criticality = X2AP_Criticality_reject;
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ie->value.present = X2AP_X2SetupRequest_IEs__value_PR_GUGroupIDList;
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{
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gu = (X2AP_GU_Group_ID_t *)calloc(1, sizeof(X2AP_GU_Group_ID_t));
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{
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MCC_MNC_TO_PLMNID(instance_p->mcc, instance_p->mnc, instance_p->mnc_digit_length,
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&gu->pLMN_Identity);
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//@TODO: consider to update this value
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INT16_TO_OCTET_STRING(0, &gu->mME_Group_ID);
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}
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ASN_SEQUENCE_ADD(&ie->value.choice.GUGroupIDList.list, gu);
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}
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ASN_SEQUENCE_ADD(&out->protocolIEs.list, ie);
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if (x2ap_eNB_encode_pdu(&pdu, &buffer, &len) < 0) {
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X2AP_ERROR("Failed to encode X2 setup request\n");
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return -1;
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}
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MSC_LOG_TX_MESSAGE (MSC_X2AP_SRC_ENB, MSC_X2AP_TARGET_ENB, NULL, 0, "0 X2Setup/initiatingMessage assoc_id %u", x2ap_eNB_data_p->assoc_id);
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x2ap_eNB_itti_send_sctp_data_req(instance_p->instance, x2ap_eNB_data_p->assoc_id, buffer, len, 0);
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return ret;
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}
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int x2ap_eNB_generate_x2_setup_response(x2ap_eNB_instance_t *instance_p, x2ap_eNB_data_t *x2ap_eNB_data_p)
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{
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X2AP_X2AP_PDU_t pdu;
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X2AP_X2SetupResponse_t *out;
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X2AP_X2SetupResponse_IEs_t *ie;
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X2AP_PLMN_Identity_t *plmn;
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ServedCells__Member *servedCellMember;
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X2AP_GU_Group_ID_t *gu;
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uint8_t *buffer;
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uint32_t len;
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int ret = 0;
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DevAssert(instance_p != NULL);
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DevAssert(x2ap_eNB_data_p != NULL);
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/* Prepare the X2AP message to encode */
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memset(&pdu, 0, sizeof(pdu));
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pdu.present = X2AP_X2AP_PDU_PR_successfulOutcome;
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pdu.choice.successfulOutcome.procedureCode = X2AP_ProcedureCode_id_x2Setup;
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pdu.choice.successfulOutcome.criticality = X2AP_Criticality_reject;
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pdu.choice.successfulOutcome.value.present = X2AP_SuccessfulOutcome__value_PR_X2SetupResponse;
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out = &pdu.choice.successfulOutcome.value.choice.X2SetupResponse;
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/* mandatory */
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ie = (X2AP_X2SetupResponse_IEs_t *)calloc(1, sizeof(X2AP_X2SetupResponse_IEs_t));
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ie->id = X2AP_ProtocolIE_ID_id_GlobalENB_ID;
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ie->criticality = X2AP_Criticality_reject;
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ie->value.present = X2AP_X2SetupResponse_IEs__value_PR_GlobalENB_ID;
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MCC_MNC_TO_PLMNID(instance_p->mcc, instance_p->mnc, instance_p->mnc_digit_length,
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&ie->value.choice.GlobalENB_ID.pLMN_Identity);
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ie->value.choice.GlobalENB_ID.eNB_ID.present = X2AP_ENB_ID_PR_macro_eNB_ID;
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MACRO_ENB_ID_TO_BIT_STRING(instance_p->eNB_id,
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&ie->value.choice.GlobalENB_ID.eNB_ID.choice.macro_eNB_ID);
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X2AP_INFO("%d -> %02x%02x%02x\n", instance_p->eNB_id,
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ie->value.choice.GlobalENB_ID.eNB_ID.choice.macro_eNB_ID.buf[0],
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ie->value.choice.GlobalENB_ID.eNB_ID.choice.macro_eNB_ID.buf[1],
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ie->value.choice.GlobalENB_ID.eNB_ID.choice.macro_eNB_ID.buf[2]);
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ASN_SEQUENCE_ADD(&out->protocolIEs.list, ie);
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/* mandatory */
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ie = (X2AP_X2SetupResponse_IEs_t *)calloc(1, sizeof(X2AP_X2SetupResponse_IEs_t));
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ie->id = X2AP_ProtocolIE_ID_id_ServedCells;
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ie->criticality = X2AP_Criticality_reject;
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ie->value.present = X2AP_X2SetupResponse_IEs__value_PR_ServedCells;
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{
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for (int i = 0; i<instance_p->num_cc; i++){
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servedCellMember = (ServedCells__Member *)calloc(1,sizeof(ServedCells__Member));
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{
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servedCellMember->servedCellInfo.pCI = instance_p->Nid_cell[i];
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MCC_MNC_TO_PLMNID(instance_p->mcc, instance_p->mnc, instance_p->mnc_digit_length,
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&servedCellMember->servedCellInfo.cellId.pLMN_Identity);
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MACRO_ENB_ID_TO_CELL_IDENTITY(instance_p->eNB_id,0,
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&servedCellMember->servedCellInfo.cellId.eUTRANcellIdentifier);
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INT16_TO_OCTET_STRING(instance_p->tac, &servedCellMember->servedCellInfo.tAC);
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plmn = (X2AP_PLMN_Identity_t *)calloc(1,sizeof(X2AP_PLMN_Identity_t));
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{
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MCC_MNC_TO_PLMNID(instance_p->mcc, instance_p->mnc, instance_p->mnc_digit_length, plmn);
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ASN_SEQUENCE_ADD(&servedCellMember->servedCellInfo.broadcastPLMNs.list, plmn);
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}
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if (instance_p->frame_type[i] == FDD) {
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servedCellMember->servedCellInfo.eUTRA_Mode_Info.present = X2AP_EUTRA_Mode_Info_PR_fDD;
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servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.fDD.dL_EARFCN = instance_p->fdd_earfcn_DL[i];
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servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.fDD.uL_EARFCN = instance_p->fdd_earfcn_UL[i];
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switch (instance_p->N_RB_DL[i]) {
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case 6:
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servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.fDD.uL_Transmission_Bandwidth = X2AP_Transmission_Bandwidth_bw6;
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|
servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.fDD.dL_Transmission_Bandwidth = X2AP_Transmission_Bandwidth_bw6;
|
|
break;
|
|
case 15:
|
|
servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.fDD.uL_Transmission_Bandwidth = X2AP_Transmission_Bandwidth_bw15;
|
|
servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.fDD.dL_Transmission_Bandwidth = X2AP_Transmission_Bandwidth_bw15;
|
|
break;
|
|
case 25:
|
|
servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.fDD.uL_Transmission_Bandwidth = X2AP_Transmission_Bandwidth_bw25;
|
|
servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.fDD.dL_Transmission_Bandwidth = X2AP_Transmission_Bandwidth_bw25;
|
|
break;
|
|
case 50:
|
|
servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.fDD.uL_Transmission_Bandwidth = X2AP_Transmission_Bandwidth_bw50;
|
|
servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.fDD.dL_Transmission_Bandwidth = X2AP_Transmission_Bandwidth_bw50;
|
|
break;
|
|
case 75:
|
|
servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.fDD.uL_Transmission_Bandwidth = X2AP_Transmission_Bandwidth_bw75;
|
|
servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.fDD.dL_Transmission_Bandwidth = X2AP_Transmission_Bandwidth_bw75;
|
|
break;
|
|
case 100:
|
|
servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.fDD.uL_Transmission_Bandwidth = X2AP_Transmission_Bandwidth_bw100;
|
|
servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.fDD.dL_Transmission_Bandwidth = X2AP_Transmission_Bandwidth_bw100;
|
|
break;
|
|
default:
|
|
AssertFatal(0,"Failed: Check value for N_RB_DL/N_RB_UL");
|
|
break;
|
|
}
|
|
}
|
|
else {
|
|
servedCellMember->servedCellInfo.eUTRA_Mode_Info.present = X2AP_EUTRA_Mode_Info_PR_tDD;
|
|
servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.tDD.eARFCN = instance_p->fdd_earfcn_DL[i];
|
|
switch (instance_p->subframeAssignment[i]) {
|
|
case 0:
|
|
servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.tDD.subframeAssignment = X2AP_SubframeAssignment_sa0;
|
|
break;
|
|
case 1:
|
|
servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.tDD.subframeAssignment = X2AP_SubframeAssignment_sa1;
|
|
break;
|
|
case 2:
|
|
servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.tDD.subframeAssignment = X2AP_SubframeAssignment_sa2;
|
|
break;
|
|
case 3:
|
|
servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.tDD.subframeAssignment = X2AP_SubframeAssignment_sa3;
|
|
break;
|
|
case 4:
|
|
servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.tDD.subframeAssignment = X2AP_SubframeAssignment_sa4;
|
|
break;
|
|
case 5:
|
|
servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.tDD.subframeAssignment = X2AP_SubframeAssignment_sa5;
|
|
break;
|
|
case 6:
|
|
servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.tDD.subframeAssignment = X2AP_SubframeAssignment_sa6;
|
|
break;
|
|
default:
|
|
AssertFatal(0,"Failed: Check value for subframeAssignment");
|
|
break;
|
|
}
|
|
switch (instance_p->specialSubframe[i]) {
|
|
case 0:
|
|
servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.tDD.specialSubframe_Info.specialSubframePatterns = X2AP_SpecialSubframePatterns_ssp0;
|
|
break;
|
|
case 1:
|
|
servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.tDD.specialSubframe_Info.specialSubframePatterns = X2AP_SpecialSubframePatterns_ssp1;
|
|
break;
|
|
case 2:
|
|
servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.tDD.specialSubframe_Info.specialSubframePatterns = X2AP_SpecialSubframePatterns_ssp2;
|
|
break;
|
|
case 3:
|
|
servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.tDD.specialSubframe_Info.specialSubframePatterns = X2AP_SpecialSubframePatterns_ssp3;
|
|
break;
|
|
case 4:
|
|
servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.tDD.specialSubframe_Info.specialSubframePatterns = X2AP_SpecialSubframePatterns_ssp4;
|
|
break;
|
|
case 5:
|
|
servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.tDD.specialSubframe_Info.specialSubframePatterns = X2AP_SpecialSubframePatterns_ssp5;
|
|
break;
|
|
case 6:
|
|
servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.tDD.specialSubframe_Info.specialSubframePatterns = X2AP_SpecialSubframePatterns_ssp6;
|
|
break;
|
|
case 7:
|
|
servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.tDD.specialSubframe_Info.specialSubframePatterns = X2AP_SpecialSubframePatterns_ssp7;
|
|
break;
|
|
case 8:
|
|
servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.tDD.specialSubframe_Info.specialSubframePatterns = X2AP_SpecialSubframePatterns_ssp8;
|
|
break;
|
|
default:
|
|
AssertFatal(0,"Failed: Check value for subframeAssignment");
|
|
break;
|
|
}
|
|
servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.tDD.specialSubframe_Info.cyclicPrefixDL=X2AP_CyclicPrefixDL_normal;
|
|
servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.tDD.specialSubframe_Info.cyclicPrefixUL=X2AP_CyclicPrefixUL_normal;
|
|
|
|
switch (instance_p->N_RB_DL[i]) {
|
|
case 6:
|
|
servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.tDD.transmission_Bandwidth = X2AP_Transmission_Bandwidth_bw6;
|
|
break;
|
|
case 15:
|
|
servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.tDD.transmission_Bandwidth = X2AP_Transmission_Bandwidth_bw15;
|
|
break;
|
|
case 25:
|
|
servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.tDD.transmission_Bandwidth = X2AP_Transmission_Bandwidth_bw25;
|
|
break;
|
|
case 50:
|
|
servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.tDD.transmission_Bandwidth = X2AP_Transmission_Bandwidth_bw50;
|
|
break;
|
|
case 75:
|
|
servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.tDD.transmission_Bandwidth = X2AP_Transmission_Bandwidth_bw75;
|
|
break;
|
|
case 100:
|
|
servedCellMember->servedCellInfo.eUTRA_Mode_Info.choice.tDD.transmission_Bandwidth = X2AP_Transmission_Bandwidth_bw100;
|
|
break;
|
|
default:
|
|
AssertFatal(0,"Failed: Check value for N_RB_DL/N_RB_UL");
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
ASN_SEQUENCE_ADD(&ie->value.choice.ServedCells.list, servedCellMember);
|
|
}
|
|
}
|
|
ASN_SEQUENCE_ADD(&out->protocolIEs.list, ie);
|
|
|
|
/* mandatory */
|
|
ie = (X2AP_X2SetupResponse_IEs_t *)calloc(1, sizeof(X2AP_X2SetupResponse_IEs_t));
|
|
ie->id = X2AP_ProtocolIE_ID_id_GUGroupIDList;
|
|
ie->criticality = X2AP_Criticality_reject;
|
|
ie->value.present = X2AP_X2SetupResponse_IEs__value_PR_GUGroupIDList;
|
|
{
|
|
gu = (X2AP_GU_Group_ID_t *)calloc(1, sizeof(X2AP_GU_Group_ID_t));
|
|
{
|
|
MCC_MNC_TO_PLMNID(instance_p->mcc, instance_p->mnc, instance_p->mnc_digit_length,
|
|
&gu->pLMN_Identity);
|
|
//@TODO: consider to update this value
|
|
INT16_TO_OCTET_STRING(0, &gu->mME_Group_ID);
|
|
}
|
|
ASN_SEQUENCE_ADD(&ie->value.choice.GUGroupIDList.list, gu);
|
|
}
|
|
ASN_SEQUENCE_ADD(&out->protocolIEs.list, ie);
|
|
|
|
if (x2ap_eNB_encode_pdu(&pdu, &buffer, &len) < 0) {
|
|
X2AP_ERROR("Failed to encode X2 setup response\n");
|
|
return -1;
|
|
}
|
|
|
|
x2ap_eNB_data_p->state = X2AP_ENB_STATE_READY;
|
|
|
|
MSC_LOG_TX_MESSAGE (MSC_X2AP_SRC_ENB, MSC_X2AP_TARGET_ENB, NULL, 0, "0 X2Setup/successfulOutcome assoc_id %u", x2ap_eNB_data_p->assoc_id);
|
|
|
|
x2ap_eNB_itti_send_sctp_data_req(instance_p->instance, x2ap_eNB_data_p->assoc_id, buffer, len, 0);
|
|
|
|
return ret;
|
|
}
|
|
|
|
int x2ap_eNB_generate_x2_setup_failure(instance_t instance,
|
|
uint32_t assoc_id,
|
|
X2AP_Cause_PR cause_type,
|
|
long cause_value,
|
|
long time_to_wait)
|
|
{
|
|
X2AP_X2AP_PDU_t pdu;
|
|
X2AP_X2SetupFailure_t *out;
|
|
X2AP_X2SetupFailure_IEs_t *ie;
|
|
|
|
uint8_t *buffer;
|
|
uint32_t len;
|
|
int ret = 0;
|
|
|
|
/* Prepare the X2AP message to encode */
|
|
memset(&pdu, 0, sizeof(pdu));
|
|
pdu.present = X2AP_X2AP_PDU_PR_unsuccessfulOutcome;
|
|
pdu.choice.unsuccessfulOutcome.procedureCode = X2AP_ProcedureCode_id_x2Setup;
|
|
pdu.choice.unsuccessfulOutcome.criticality = X2AP_Criticality_reject;
|
|
pdu.choice.unsuccessfulOutcome.value.present = X2AP_UnsuccessfulOutcome__value_PR_X2SetupFailure;
|
|
out = &pdu.choice.unsuccessfulOutcome.value.choice.X2SetupFailure;
|
|
|
|
/* mandatory */
|
|
ie = (X2AP_X2SetupFailure_IEs_t *)calloc(1, sizeof(X2AP_X2SetupFailure_IEs_t));
|
|
ie->id = X2AP_ProtocolIE_ID_id_Cause;
|
|
ie->criticality = X2AP_Criticality_ignore;
|
|
ie->value.present = X2AP_X2SetupFailure_IEs__value_PR_Cause;
|
|
|
|
x2ap_eNB_set_cause (&ie->value.choice.Cause, cause_type, cause_value);
|
|
|
|
ASN_SEQUENCE_ADD(&out->protocolIEs.list, ie);
|
|
|
|
/* optional: consider to handle this later */
|
|
ie = (X2AP_X2SetupFailure_IEs_t *)calloc(1, sizeof(X2AP_X2SetupFailure_IEs_t));
|
|
ie->id = X2AP_ProtocolIE_ID_id_TimeToWait;
|
|
ie->criticality = X2AP_Criticality_ignore;
|
|
ie->value.present = X2AP_X2SetupFailure_IEs__value_PR_TimeToWait;
|
|
|
|
if (time_to_wait > -1) {
|
|
ie->value.choice.TimeToWait = time_to_wait;
|
|
}
|
|
|
|
ASN_SEQUENCE_ADD(&out->protocolIEs.list, ie);
|
|
|
|
if (x2ap_eNB_encode_pdu(&pdu, &buffer, &len) < 0) {
|
|
X2AP_ERROR("Failed to encode X2 setup failure\n");
|
|
return -1;
|
|
}
|
|
|
|
MSC_LOG_TX_MESSAGE (MSC_X2AP_SRC_ENB,
|
|
MSC_X2AP_TARGET_ENB, NULL, 0,
|
|
"0 X2Setup/unsuccessfulOutcome assoc_id %u cause %u value %u",
|
|
assoc_id, cause_type, cause_value);
|
|
|
|
x2ap_eNB_itti_send_sctp_data_req(instance, assoc_id, buffer, len, 0);
|
|
|
|
return ret;
|
|
}
|
|
|
|
int x2ap_eNB_set_cause (X2AP_Cause_t * cause_p,
|
|
X2AP_Cause_PR cause_type,
|
|
long cause_value)
|
|
{
|
|
|
|
DevAssert (cause_p != NULL);
|
|
cause_p->present = cause_type;
|
|
|
|
switch (cause_type) {
|
|
case X2AP_Cause_PR_radioNetwork:
|
|
cause_p->choice.misc = cause_value;
|
|
break;
|
|
|
|
case X2AP_Cause_PR_transport:
|
|
cause_p->choice.misc = cause_value;
|
|
break;
|
|
|
|
case X2AP_Cause_PR_protocol:
|
|
cause_p->choice.misc = cause_value;
|
|
break;
|
|
|
|
case X2AP_Cause_PR_misc:
|
|
cause_p->choice.misc = cause_value;
|
|
break;
|
|
|
|
default:
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int x2ap_eNB_generate_x2_handover_request (x2ap_eNB_instance_t *instance_p, x2ap_eNB_data_t *x2ap_eNB_data_p,
|
|
x2ap_handover_req_t *x2ap_handover_req, int ue_id)
|
|
{
|
|
|
|
X2AP_X2AP_PDU_t pdu;
|
|
X2AP_HandoverRequest_t *out;
|
|
X2AP_HandoverRequest_IEs_t *ie;
|
|
X2AP_E_RABs_ToBeSetup_ItemIEs_t *e_RABS_ToBeSetup_ItemIEs;
|
|
X2AP_E_RABs_ToBeSetup_Item_t *e_RABs_ToBeSetup_Item;
|
|
X2AP_LastVisitedCell_Item_t *lastVisitedCell_Item;
|
|
|
|
uint8_t *buffer;
|
|
uint32_t len;
|
|
int ret = 0;
|
|
|
|
DevAssert(instance_p != NULL);
|
|
DevAssert(x2ap_eNB_data_p != NULL);
|
|
|
|
/* Prepare the X2AP handover message to encode */
|
|
memset(&pdu, 0, sizeof(pdu));
|
|
pdu.present = X2AP_X2AP_PDU_PR_initiatingMessage;
|
|
pdu.choice.initiatingMessage.procedureCode = X2AP_ProcedureCode_id_handoverPreparation;
|
|
pdu.choice.initiatingMessage.criticality = X2AP_Criticality_reject;
|
|
pdu.choice.initiatingMessage.value.present = X2AP_InitiatingMessage__value_PR_HandoverRequest;
|
|
out = &pdu.choice.initiatingMessage.value.choice.HandoverRequest;
|
|
|
|
/* mandatory */
|
|
ie = (X2AP_HandoverRequest_IEs_t *)calloc(1, sizeof(X2AP_HandoverRequest_IEs_t));
|
|
ie->id = X2AP_ProtocolIE_ID_id_Old_eNB_UE_X2AP_ID;
|
|
ie->criticality = X2AP_Criticality_reject;
|
|
ie->value.present = X2AP_HandoverRequest_IEs__value_PR_UE_X2AP_ID;
|
|
ie->value.choice.UE_X2AP_ID = x2ap_id_get_id_source(&instance_p->id_manager, ue_id);
|
|
ASN_SEQUENCE_ADD(&out->protocolIEs.list, ie);
|
|
|
|
/* mandatory */
|
|
ie = (X2AP_HandoverRequest_IEs_t *)calloc(1, sizeof(X2AP_HandoverRequest_IEs_t));
|
|
ie->id = X2AP_ProtocolIE_ID_id_Cause;
|
|
ie->criticality = X2AP_Criticality_ignore;
|
|
ie->value.present = X2AP_HandoverRequest_IEs__value_PR_Cause;
|
|
ie->value.choice.Cause.present = X2AP_Cause_PR_radioNetwork;
|
|
ie->value.choice.Cause.choice.radioNetwork = X2AP_CauseRadioNetwork_handover_desirable_for_radio_reasons;
|
|
ASN_SEQUENCE_ADD(&out->protocolIEs.list, ie);
|
|
|
|
/* mandatory */
|
|
ie = (X2AP_HandoverRequest_IEs_t *)calloc(1, sizeof(X2AP_HandoverRequest_IEs_t));
|
|
ie->id = X2AP_ProtocolIE_ID_id_TargetCell_ID;
|
|
ie->criticality = X2AP_Criticality_reject;
|
|
ie->value.present = X2AP_HandoverRequest_IEs__value_PR_ECGI;
|
|
MCC_MNC_TO_PLMNID(instance_p->mcc, instance_p->mnc, instance_p->mnc_digit_length,
|
|
&ie->value.choice.ECGI.pLMN_Identity);
|
|
MACRO_ENB_ID_TO_CELL_IDENTITY(x2ap_eNB_data_p->eNB_id, 0, &ie->value.choice.ECGI.eUTRANcellIdentifier);
|
|
ASN_SEQUENCE_ADD(&out->protocolIEs.list, ie);
|
|
|
|
/* mandatory */
|
|
ie = (X2AP_HandoverRequest_IEs_t *)calloc(1, sizeof(X2AP_HandoverRequest_IEs_t));
|
|
ie->id = X2AP_ProtocolIE_ID_id_GUMMEI_ID;
|
|
ie->criticality = X2AP_Criticality_reject;
|
|
ie->value.present = X2AP_HandoverRequest_IEs__value_PR_GUMMEI;
|
|
MCC_MNC_TO_PLMNID(instance_p->mcc, instance_p->mnc, instance_p->mnc_digit_length,
|
|
&ie->value.choice.GUMMEI.gU_Group_ID.pLMN_Identity);
|
|
//@TODO: consider to update these values
|
|
INT16_TO_OCTET_STRING(x2ap_handover_req->ue_gummei.mme_group_id, &ie->value.choice.GUMMEI.gU_Group_ID.mME_Group_ID);
|
|
MME_CODE_TO_OCTET_STRING(x2ap_handover_req->ue_gummei.mme_code, &ie->value.choice.GUMMEI.mME_Code);
|
|
ASN_SEQUENCE_ADD(&out->protocolIEs.list, ie);
|
|
|
|
/* mandatory */
|
|
ie = (X2AP_HandoverRequest_IEs_t *)calloc(1, sizeof(X2AP_HandoverRequest_IEs_t));
|
|
ie->id = X2AP_ProtocolIE_ID_id_UE_ContextInformation;
|
|
ie->criticality = X2AP_Criticality_reject;
|
|
ie->value.present = X2AP_HandoverRequest_IEs__value_PR_UE_ContextInformation;
|
|
//@TODO: consider to update this value
|
|
ie->value.choice.UE_ContextInformation.mME_UE_S1AP_ID = x2ap_handover_req->mme_ue_s1ap_id;
|
|
|
|
KENB_STAR_TO_BIT_STRING(x2ap_handover_req->kenb,&ie->value.choice.UE_ContextInformation.aS_SecurityInformation.key_eNodeB_star);
|
|
|
|
if (x2ap_handover_req->kenb_ncc >=0) { // Check this condition
|
|
ie->value.choice.UE_ContextInformation.aS_SecurityInformation.nextHopChainingCount = x2ap_handover_req->kenb_ncc;
|
|
}
|
|
else {
|
|
ie->value.choice.UE_ContextInformation.aS_SecurityInformation.nextHopChainingCount = 1;
|
|
}
|
|
|
|
ENCRALG_TO_BIT_STRING(x2ap_handover_req->security_capabilities.encryption_algorithms,
|
|
&ie->value.choice.UE_ContextInformation.uESecurityCapabilities.encryptionAlgorithms);
|
|
|
|
INTPROTALG_TO_BIT_STRING(x2ap_handover_req->security_capabilities.integrity_algorithms,
|
|
&ie->value.choice.UE_ContextInformation.uESecurityCapabilities.integrityProtectionAlgorithms);
|
|
|
|
//@TODO: update with proper UEAMPR
|
|
UEAGMAXBITRTD_TO_ASN_PRIMITIVES(3L,&ie->value.choice.UE_ContextInformation.uEaggregateMaximumBitRate.uEaggregateMaximumBitRateDownlink);
|
|
UEAGMAXBITRTU_TO_ASN_PRIMITIVES(6L,&ie->value.choice.UE_ContextInformation.uEaggregateMaximumBitRate.uEaggregateMaximumBitRateUplink);
|
|
{
|
|
for (int i=0;i<x2ap_handover_req->nb_e_rabs_tobesetup;i++) {
|
|
e_RABS_ToBeSetup_ItemIEs = (X2AP_E_RABs_ToBeSetup_ItemIEs_t *)calloc(1,sizeof(X2AP_E_RABs_ToBeSetup_ItemIEs_t));
|
|
e_RABS_ToBeSetup_ItemIEs->id = X2AP_ProtocolIE_ID_id_E_RABs_ToBeSetup_Item;
|
|
e_RABS_ToBeSetup_ItemIEs->criticality = X2AP_Criticality_ignore;
|
|
e_RABS_ToBeSetup_ItemIEs->value.present = X2AP_E_RABs_ToBeSetup_ItemIEs__value_PR_E_RABs_ToBeSetup_Item;
|
|
e_RABs_ToBeSetup_Item = &e_RABS_ToBeSetup_ItemIEs->value.choice.E_RABs_ToBeSetup_Item;
|
|
{
|
|
e_RABs_ToBeSetup_Item->e_RAB_ID = x2ap_handover_req->e_rabs_tobesetup[i].e_rab_id;
|
|
e_RABs_ToBeSetup_Item->e_RAB_Level_QoS_Parameters.qCI = x2ap_handover_req->e_rab_param[i].qos.qci;
|
|
e_RABs_ToBeSetup_Item->e_RAB_Level_QoS_Parameters.allocationAndRetentionPriority.priorityLevel = x2ap_handover_req->e_rab_param[i].qos.allocation_retention_priority.priority_level;
|
|
e_RABs_ToBeSetup_Item->e_RAB_Level_QoS_Parameters.allocationAndRetentionPriority.pre_emptionCapability = x2ap_handover_req->e_rab_param[i].qos.allocation_retention_priority.pre_emp_capability;
|
|
e_RABs_ToBeSetup_Item->e_RAB_Level_QoS_Parameters.allocationAndRetentionPriority.pre_emptionVulnerability = x2ap_handover_req->e_rab_param[i].qos.allocation_retention_priority.pre_emp_vulnerability;
|
|
e_RABs_ToBeSetup_Item->uL_GTPtunnelEndpoint.transportLayerAddress.size = (uint8_t)(x2ap_handover_req->e_rabs_tobesetup[i].eNB_addr.length/8);
|
|
e_RABs_ToBeSetup_Item->uL_GTPtunnelEndpoint.transportLayerAddress.bits_unused = x2ap_handover_req->e_rabs_tobesetup[i].eNB_addr.length%8;
|
|
e_RABs_ToBeSetup_Item->uL_GTPtunnelEndpoint.transportLayerAddress.buf =
|
|
calloc(1,e_RABs_ToBeSetup_Item->uL_GTPtunnelEndpoint.transportLayerAddress.size);
|
|
|
|
memcpy (e_RABs_ToBeSetup_Item->uL_GTPtunnelEndpoint.transportLayerAddress.buf,
|
|
x2ap_handover_req->e_rabs_tobesetup[i].eNB_addr.buffer,
|
|
e_RABs_ToBeSetup_Item->uL_GTPtunnelEndpoint.transportLayerAddress.size);
|
|
|
|
INT32_TO_OCTET_STRING(x2ap_handover_req->e_rabs_tobesetup[i].gtp_teid,&e_RABs_ToBeSetup_Item->uL_GTPtunnelEndpoint.gTP_TEID);
|
|
}
|
|
ASN_SEQUENCE_ADD(&ie->value.choice.UE_ContextInformation.e_RABs_ToBeSetup_List.list, e_RABS_ToBeSetup_ItemIEs);
|
|
}
|
|
}
|
|
|
|
OCTET_STRING_fromBuf(&ie->value.choice.UE_ContextInformation.rRC_Context, (char*) x2ap_handover_req->rrc_buffer, x2ap_handover_req->rrc_buffer_size);
|
|
|
|
ASN_SEQUENCE_ADD(&out->protocolIEs.list, ie);
|
|
|
|
/* mandatory */
|
|
ie = (X2AP_HandoverRequest_IEs_t *)calloc(1, sizeof(X2AP_HandoverRequest_IEs_t));
|
|
ie->id = X2AP_ProtocolIE_ID_id_UE_HistoryInformation;
|
|
ie->criticality = X2AP_Criticality_ignore;
|
|
ie->value.present = X2AP_HandoverRequest_IEs__value_PR_UE_HistoryInformation;
|
|
//@TODO: consider to update this value
|
|
{
|
|
lastVisitedCell_Item = (X2AP_LastVisitedCell_Item_t *)calloc(1, sizeof(X2AP_LastVisitedCell_Item_t));
|
|
lastVisitedCell_Item->present = X2AP_LastVisitedCell_Item_PR_e_UTRAN_Cell;
|
|
MCC_MNC_TO_PLMNID(instance_p->mcc, instance_p->mnc, instance_p->mnc_digit_length,
|
|
&lastVisitedCell_Item->choice.e_UTRAN_Cell.global_Cell_ID.pLMN_Identity);
|
|
MACRO_ENB_ID_TO_CELL_IDENTITY(0, 0, &lastVisitedCell_Item->choice.e_UTRAN_Cell.global_Cell_ID.eUTRANcellIdentifier);
|
|
lastVisitedCell_Item->choice.e_UTRAN_Cell.cellType.cell_Size = X2AP_Cell_Size_small;
|
|
lastVisitedCell_Item->choice.e_UTRAN_Cell.time_UE_StayedInCell = 2;
|
|
ASN_SEQUENCE_ADD(&ie->value.choice.UE_HistoryInformation.list, lastVisitedCell_Item);
|
|
}
|
|
|
|
ASN_SEQUENCE_ADD(&out->protocolIEs.list, ie);
|
|
|
|
if (x2ap_eNB_encode_pdu(&pdu, &buffer, &len) < 0) {
|
|
X2AP_ERROR("Failed to encode X2 handover request\n");
|
|
abort();
|
|
return -1;
|
|
}
|
|
|
|
MSC_LOG_TX_MESSAGE (MSC_X2AP_SRC_ENB, MSC_X2AP_TARGET_ENB, NULL, 0, "0 X2Handover/initiatingMessage assoc_id %u", x2ap_eNB_data_p->assoc_id);
|
|
|
|
x2ap_eNB_itti_send_sctp_data_req(instance_p->instance, x2ap_eNB_data_p->assoc_id, buffer, len, 1);
|
|
|
|
return ret;
|
|
}
|
|
|
|
int x2ap_eNB_generate_x2_handover_request_ack (x2ap_eNB_instance_t *instance_p, x2ap_eNB_data_t *x2ap_eNB_data_p,
|
|
x2ap_handover_req_ack_t *x2ap_handover_req_ack)
|
|
{
|
|
|
|
X2AP_X2AP_PDU_t pdu;
|
|
X2AP_HandoverRequestAcknowledge_t *out;
|
|
X2AP_HandoverRequestAcknowledge_IEs_t *ie;
|
|
X2AP_E_RABs_Admitted_ItemIEs_t *e_RABS_Admitted_ItemIEs;
|
|
X2AP_E_RABs_Admitted_Item_t *e_RABs_Admitted_Item;
|
|
int ue_id;
|
|
int id_source;
|
|
int id_target;
|
|
|
|
uint8_t *buffer;
|
|
uint32_t len;
|
|
int ret = 0;
|
|
|
|
DevAssert(instance_p != NULL);
|
|
DevAssert(x2ap_eNB_data_p != NULL);
|
|
|
|
ue_id = x2ap_handover_req_ack->x2_id_target;
|
|
id_source = x2ap_id_get_id_source(&instance_p->id_manager, ue_id);
|
|
id_target = ue_id;
|
|
|
|
/* Prepare the X2AP handover message to encode */
|
|
memset(&pdu, 0, sizeof(pdu));
|
|
pdu.present = X2AP_X2AP_PDU_PR_successfulOutcome;
|
|
pdu.choice.successfulOutcome.procedureCode = X2AP_ProcedureCode_id_handoverPreparation;
|
|
pdu.choice.successfulOutcome.criticality = X2AP_Criticality_reject;
|
|
pdu.choice.successfulOutcome.value.present = X2AP_SuccessfulOutcome__value_PR_HandoverRequestAcknowledge;
|
|
out = &pdu.choice.successfulOutcome.value.choice.HandoverRequestAcknowledge;
|
|
|
|
/* mandatory */
|
|
ie = (X2AP_HandoverRequestAcknowledge_IEs_t *)calloc(1, sizeof(X2AP_HandoverRequestAcknowledge_IEs_t));
|
|
ie->id = X2AP_ProtocolIE_ID_id_Old_eNB_UE_X2AP_ID;
|
|
ie->criticality = X2AP_Criticality_ignore;
|
|
ie->value.present = X2AP_HandoverRequestAcknowledge_IEs__value_PR_UE_X2AP_ID;
|
|
ie->value.choice.UE_X2AP_ID = id_source;
|
|
ASN_SEQUENCE_ADD(&out->protocolIEs.list, ie);
|
|
|
|
/* mandatory */
|
|
ie = (X2AP_HandoverRequestAcknowledge_IEs_t *)calloc(1, sizeof(X2AP_HandoverRequestAcknowledge_IEs_t));
|
|
ie->id = X2AP_ProtocolIE_ID_id_New_eNB_UE_X2AP_ID;
|
|
ie->criticality = X2AP_Criticality_ignore;
|
|
ie->value.present = X2AP_HandoverRequestAcknowledge_IEs__value_PR_UE_X2AP_ID_1;
|
|
ie->value.choice.UE_X2AP_ID_1 = id_target;
|
|
ASN_SEQUENCE_ADD(&out->protocolIEs.list, ie);
|
|
|
|
/* mandatory */
|
|
ie = (X2AP_HandoverRequestAcknowledge_IEs_t *)calloc(1, sizeof(X2AP_HandoverRequestAcknowledge_IEs_t));
|
|
ie->id = X2AP_ProtocolIE_ID_id_E_RABs_Admitted_List;
|
|
ie->criticality = X2AP_Criticality_ignore;
|
|
ie->value.present = X2AP_HandoverRequestAcknowledge_IEs__value_PR_E_RABs_Admitted_List;
|
|
|
|
{
|
|
for (int i=0;i<x2ap_handover_req_ack->nb_e_rabs_tobesetup;i++) {
|
|
e_RABS_Admitted_ItemIEs = (X2AP_E_RABs_Admitted_ItemIEs_t *)calloc(1,sizeof(X2AP_E_RABs_Admitted_ItemIEs_t));
|
|
e_RABS_Admitted_ItemIEs->id = X2AP_ProtocolIE_ID_id_E_RABs_Admitted_Item;
|
|
e_RABS_Admitted_ItemIEs->criticality = X2AP_Criticality_ignore;
|
|
e_RABS_Admitted_ItemIEs->value.present = X2AP_E_RABs_Admitted_ItemIEs__value_PR_E_RABs_Admitted_Item;
|
|
e_RABs_Admitted_Item = &e_RABS_Admitted_ItemIEs->value.choice.E_RABs_Admitted_Item;
|
|
{
|
|
e_RABs_Admitted_Item->e_RAB_ID = x2ap_handover_req_ack->e_rabs_tobesetup[i].e_rab_id;
|
|
e_RABs_Admitted_Item->uL_GTP_TunnelEndpoint = NULL;
|
|
e_RABs_Admitted_Item->dL_GTP_TunnelEndpoint = (X2AP_GTPtunnelEndpoint_t *)calloc(1, sizeof(*e_RABs_Admitted_Item->dL_GTP_TunnelEndpoint));
|
|
|
|
e_RABs_Admitted_Item->dL_GTP_TunnelEndpoint->transportLayerAddress.size = (uint8_t)x2ap_handover_req_ack->e_rabs_tobesetup[i].eNB_addr.length;
|
|
e_RABs_Admitted_Item->dL_GTP_TunnelEndpoint->transportLayerAddress.bits_unused = 0;
|
|
e_RABs_Admitted_Item->dL_GTP_TunnelEndpoint->transportLayerAddress.buf =
|
|
calloc(1, e_RABs_Admitted_Item->dL_GTP_TunnelEndpoint->transportLayerAddress.size);
|
|
|
|
memcpy (e_RABs_Admitted_Item->dL_GTP_TunnelEndpoint->transportLayerAddress.buf,
|
|
x2ap_handover_req_ack->e_rabs_tobesetup[i].eNB_addr.buffer,
|
|
e_RABs_Admitted_Item->dL_GTP_TunnelEndpoint->transportLayerAddress.size);
|
|
|
|
X2AP_DEBUG("X2 handover response target ip addr. length %lu bits_unused %d buf %d.%d.%d.%d\n",
|
|
e_RABs_Admitted_Item->dL_GTP_TunnelEndpoint->transportLayerAddress.size,
|
|
e_RABs_Admitted_Item->dL_GTP_TunnelEndpoint->transportLayerAddress.bits_unused,
|
|
e_RABs_Admitted_Item->dL_GTP_TunnelEndpoint->transportLayerAddress.buf[0],
|
|
e_RABs_Admitted_Item->dL_GTP_TunnelEndpoint->transportLayerAddress.buf[1],
|
|
e_RABs_Admitted_Item->dL_GTP_TunnelEndpoint->transportLayerAddress.buf[2],
|
|
e_RABs_Admitted_Item->dL_GTP_TunnelEndpoint->transportLayerAddress.buf[3]);
|
|
|
|
INT32_TO_OCTET_STRING(x2ap_handover_req_ack->e_rabs_tobesetup[i].gtp_teid, &e_RABs_Admitted_Item->dL_GTP_TunnelEndpoint->gTP_TEID);
|
|
}
|
|
ASN_SEQUENCE_ADD(&ie->value.choice.E_RABs_Admitted_List.list, e_RABS_Admitted_ItemIEs);
|
|
}
|
|
}
|
|
|
|
ASN_SEQUENCE_ADD(&out->protocolIEs.list, ie);
|
|
|
|
/* mandatory */
|
|
ie = (X2AP_HandoverRequestAcknowledge_IEs_t *)calloc(1, sizeof(X2AP_HandoverRequestAcknowledge_IEs_t));
|
|
ie->id = X2AP_ProtocolIE_ID_id_TargeteNBtoSource_eNBTransparentContainer;
|
|
ie->criticality = X2AP_Criticality_ignore;
|
|
ie->value.present = X2AP_HandoverRequestAcknowledge_IEs__value_PR_TargeteNBtoSource_eNBTransparentContainer;
|
|
|
|
OCTET_STRING_fromBuf(&ie->value.choice.TargeteNBtoSource_eNBTransparentContainer, (char*) x2ap_handover_req_ack->rrc_buffer, x2ap_handover_req_ack->rrc_buffer_size);
|
|
|
|
ASN_SEQUENCE_ADD(&out->protocolIEs.list, ie);
|
|
|
|
if (x2ap_eNB_encode_pdu(&pdu, &buffer, &len) < 0) {
|
|
X2AP_ERROR("Failed to encode X2 handover response\n");
|
|
abort();
|
|
return -1;
|
|
}
|
|
|
|
MSC_LOG_TX_MESSAGE (MSC_X2AP_SRC_ENB, MSC_X2AP_TARGET_ENB, NULL, 0, "0 X2Handover/successfulOutcome assoc_id %u", x2ap_eNB_data_p->assoc_id);
|
|
|
|
x2ap_eNB_itti_send_sctp_data_req(instance_p->instance, x2ap_eNB_data_p->assoc_id, buffer, len, 1);
|
|
|
|
return ret;
|
|
}
|
|
|
|
int x2ap_eNB_generate_x2_ue_context_release (x2ap_eNB_instance_t *instance_p, x2ap_eNB_data_t *x2ap_eNB_data_p, x2ap_ue_context_release_t *x2ap_ue_context_release)
|
|
{
|
|
|
|
X2AP_X2AP_PDU_t pdu;
|
|
X2AP_UEContextRelease_t *out;
|
|
X2AP_UEContextRelease_IEs_t *ie;
|
|
int ue_id;
|
|
int id_source;
|
|
int id_target;
|
|
|
|
uint8_t *buffer;
|
|
uint32_t len;
|
|
int ret = 0;
|
|
|
|
DevAssert(instance_p != NULL);
|
|
DevAssert(x2ap_eNB_data_p != NULL);
|
|
|
|
ue_id = x2ap_find_id_from_rnti(&instance_p->id_manager, x2ap_ue_context_release->rnti);
|
|
if (ue_id == -1) {
|
|
X2AP_ERROR("could not find UE %x\n", x2ap_ue_context_release->rnti);
|
|
exit(1);
|
|
}
|
|
id_source = x2ap_id_get_id_source(&instance_p->id_manager, ue_id);
|
|
id_target = ue_id;
|
|
|
|
/* Prepare the X2AP ue context relase message to encode */
|
|
memset(&pdu, 0, sizeof(pdu));
|
|
pdu.present = X2AP_X2AP_PDU_PR_initiatingMessage;
|
|
pdu.choice.initiatingMessage.procedureCode = X2AP_ProcedureCode_id_uEContextRelease;
|
|
pdu.choice.initiatingMessage.criticality = X2AP_Criticality_ignore;
|
|
pdu.choice.initiatingMessage.value.present = X2AP_InitiatingMessage__value_PR_UEContextRelease;
|
|
out = &pdu.choice.initiatingMessage.value.choice.UEContextRelease;
|
|
|
|
/* mandatory */
|
|
ie = (X2AP_UEContextRelease_IEs_t *)calloc(1, sizeof(X2AP_UEContextRelease_IEs_t));
|
|
ie->id = X2AP_ProtocolIE_ID_id_Old_eNB_UE_X2AP_ID;
|
|
ie->criticality = X2AP_Criticality_reject;
|
|
ie->value.present = X2AP_UEContextRelease_IEs__value_PR_UE_X2AP_ID;
|
|
ie->value.choice.UE_X2AP_ID = id_source;
|
|
ASN_SEQUENCE_ADD(&out->protocolIEs.list, ie);
|
|
|
|
/* mandatory */
|
|
ie = (X2AP_UEContextRelease_IEs_t *)calloc(1, sizeof(X2AP_UEContextRelease_IEs_t));
|
|
ie->id = X2AP_ProtocolIE_ID_id_New_eNB_UE_X2AP_ID;
|
|
ie->criticality = X2AP_Criticality_reject;
|
|
ie->value.present = X2AP_UEContextRelease_IEs__value_PR_UE_X2AP_ID_1;
|
|
ie->value.choice.UE_X2AP_ID_1 = id_target;
|
|
ASN_SEQUENCE_ADD(&out->protocolIEs.list, ie);
|
|
|
|
if (x2ap_eNB_encode_pdu(&pdu, &buffer, &len) < 0) {
|
|
X2AP_ERROR("Failed to encode X2 UE Context Release\n");
|
|
abort();
|
|
return -1;
|
|
}
|
|
|
|
MSC_LOG_TX_MESSAGE (MSC_X2AP_SRC_ENB, MSC_X2AP_TARGET_ENB, NULL, 0, "0 X2UEContextRelease/initiatingMessage assoc_id %u", x2ap_eNB_data_p->assoc_id);
|
|
|
|
x2ap_eNB_itti_send_sctp_data_req(instance_p->instance, x2ap_eNB_data_p->assoc_id, buffer, len, 1);
|
|
|
|
return ret;
|
|
}
|
|
|
|
int x2ap_eNB_generate_x2_handover_cancel (x2ap_eNB_instance_t *instance_p, x2ap_eNB_data_t *x2ap_eNB_data_p,
|
|
int x2_ue_id,
|
|
x2ap_handover_cancel_cause_t cause)
|
|
{
|
|
X2AP_X2AP_PDU_t pdu;
|
|
X2AP_HandoverCancel_t *out;
|
|
X2AP_HandoverCancel_IEs_t *ie;
|
|
int ue_id;
|
|
int id_source;
|
|
int id_target;
|
|
|
|
uint8_t *buffer;
|
|
uint32_t len;
|
|
int ret = 0;
|
|
|
|
DevAssert(instance_p != NULL);
|
|
DevAssert(x2ap_eNB_data_p != NULL);
|
|
|
|
ue_id = x2_ue_id;
|
|
id_source = ue_id;
|
|
id_target = x2ap_id_get_id_target(&instance_p->id_manager, ue_id);
|
|
|
|
/* Prepare the X2AP handover cancel message to encode */
|
|
memset(&pdu, 0, sizeof(pdu));
|
|
pdu.present = X2AP_X2AP_PDU_PR_initiatingMessage;
|
|
pdu.choice.initiatingMessage.procedureCode = X2AP_ProcedureCode_id_handoverCancel;
|
|
pdu.choice.initiatingMessage.criticality = X2AP_Criticality_ignore;
|
|
pdu.choice.initiatingMessage.value.present = X2AP_InitiatingMessage__value_PR_HandoverCancel;
|
|
out = &pdu.choice.initiatingMessage.value.choice.HandoverCancel;
|
|
|
|
/* mandatory */
|
|
ie = (X2AP_HandoverCancel_IEs_t *)calloc(1, sizeof(X2AP_HandoverCancel_IEs_t));
|
|
ie->id = X2AP_ProtocolIE_ID_id_Old_eNB_UE_X2AP_ID;
|
|
ie->criticality = X2AP_Criticality_reject;
|
|
ie->value.present = X2AP_HandoverCancel_IEs__value_PR_UE_X2AP_ID;
|
|
ie->value.choice.UE_X2AP_ID = id_source;
|
|
ASN_SEQUENCE_ADD(&out->protocolIEs.list, ie);
|
|
|
|
/* optional */
|
|
if (id_target != -1) {
|
|
ie = (X2AP_HandoverCancel_IEs_t *)calloc(1, sizeof(X2AP_HandoverCancel_IEs_t));
|
|
ie->id = X2AP_ProtocolIE_ID_id_New_eNB_UE_X2AP_ID;
|
|
ie->criticality = X2AP_Criticality_ignore;
|
|
ie->value.present = X2AP_HandoverCancel_IEs__value_PR_UE_X2AP_ID_1;
|
|
ie->value.choice.UE_X2AP_ID_1 = id_target;
|
|
ASN_SEQUENCE_ADD(&out->protocolIEs.list, ie);
|
|
}
|
|
|
|
/* mandatory */
|
|
ie = (X2AP_HandoverCancel_IEs_t *)calloc(1, sizeof(X2AP_HandoverCancel_IEs_t));
|
|
ie->id = X2AP_ProtocolIE_ID_id_Cause;
|
|
ie->criticality = X2AP_Criticality_ignore;
|
|
ie->value.present = X2AP_HandoverCancel_IEs__value_PR_Cause;
|
|
switch (cause) {
|
|
case X2AP_T_RELOC_PREP_TIMEOUT:
|
|
ie->value.choice.Cause.present = X2AP_Cause_PR_radioNetwork;
|
|
ie->value.choice.Cause.choice.radioNetwork =
|
|
X2AP_CauseRadioNetwork_trelocprep_expiry;
|
|
break;
|
|
case X2AP_TX2_RELOC_OVERALL_TIMEOUT:
|
|
ie->value.choice.Cause.present = X2AP_Cause_PR_radioNetwork;
|
|
ie->value.choice.Cause.choice.radioNetwork =
|
|
X2AP_CauseRadioNetwork_tx2relocoverall_expiry;
|
|
break;
|
|
default:
|
|
/* we can't come here */
|
|
X2AP_ERROR("unhandled cancel cause\n");
|
|
exit(1);
|
|
}
|
|
ASN_SEQUENCE_ADD(&out->protocolIEs.list, ie);
|
|
|
|
if (x2ap_eNB_encode_pdu(&pdu, &buffer, &len) < 0) {
|
|
X2AP_ERROR("Failed to encode X2 Handover Cancel\n");
|
|
abort();
|
|
return -1;
|
|
}
|
|
|
|
MSC_LOG_TX_MESSAGE (MSC_X2AP_SRC_ENB, MSC_X2AP_TARGET_ENB, NULL, 0, "0 X2HandoverCancel/initiatingMessage assoc_id %u", x2ap_eNB_data_p->assoc_id);
|
|
|
|
x2ap_eNB_itti_send_sctp_data_req(instance_p->instance, x2ap_eNB_data_p->assoc_id, buffer, len, 1);
|
|
|
|
return ret;
|
|
}
|