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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 ngap_gNB_encoder.c
* \brief ngap pdu encode procedures for gNB
* \author Yoshio INOUE, Masayuki HARADA
* \email yoshio.inoue@fujitsu.com,masayuki.harada@fujitsu.com (yoshio.inoue%40fujitsu.com%2cmasayuki.harada%40fujitsu.com)
* \date 2020
* \version 0.1
*/
#include <stdio.h>
#include <string.h>
#include <stdint.h>
#include "assertions.h"
#include "conversions.h"
#include "intertask_interface.h"
#include "ngap_common.h"
#include "ngap_gNB_encoder.h"
static inline int ngap_gNB_encode_initiating(NGAP_NGAP_PDU_t *pdu,
uint8_t **buffer,
uint32_t *len);
static inline int ngap_gNB_encode_successfull_outcome(NGAP_NGAP_PDU_t *pdu,
uint8_t **buffer, uint32_t *len);
static inline int ngap_gNB_encode_unsuccessfull_outcome(NGAP_NGAP_PDU_t *pdu,
uint8_t **buffer, uint32_t *len);
int ngap_gNB_encode_pdu(NGAP_NGAP_PDU_t *pdu, uint8_t **buffer, uint32_t *len) {
int ret = -1;
DevAssert(pdu != NULL);
DevAssert(buffer != NULL);
DevAssert(len != NULL);
switch(pdu->present) {
case NGAP_NGAP_PDU_PR_initiatingMessage:
ret = ngap_gNB_encode_initiating(pdu, buffer, len);
break;
case NGAP_NGAP_PDU_PR_successfulOutcome:
ret = ngap_gNB_encode_successfull_outcome(pdu, buffer, len);
break;
case NGAP_NGAP_PDU_PR_unsuccessfulOutcome:
ret = ngap_gNB_encode_unsuccessfull_outcome(pdu, buffer, len);
break;
default:
NGAP_DEBUG("Unknown message outcome (%d) or not implemented",
(int)pdu->present);
return -1;
}
//ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_NGAP_NGAP_PDU, pdu);
return ret;
}
static inline
int ngap_gNB_encode_initiating(NGAP_NGAP_PDU_t *pdu,
uint8_t **buffer, uint32_t *len) {
asn_encode_to_new_buffer_result_t res = { NULL, {0, NULL, NULL} };
DevAssert(pdu != NULL);
switch(pdu->choice.initiatingMessage->procedureCode) {
case NGAP_ProcedureCode_id_NGSetup:
res = asn_encode_to_new_buffer(NULL, ATS_CANONICAL_XER, &asn_DEF_NGAP_NGAP_PDU, pdu);
free(res.buffer);
break;
case NGAP_ProcedureCode_id_UplinkNASTransport:
res = asn_encode_to_new_buffer(NULL, ATS_CANONICAL_XER, &asn_DEF_NGAP_NGAP_PDU, pdu);
free(res.buffer);
break;
case NGAP_ProcedureCode_id_UERadioCapabilityInfoIndication:
res = asn_encode_to_new_buffer(NULL, ATS_CANONICAL_XER, &asn_DEF_NGAP_NGAP_PDU, pdu);
free(res.buffer);
break;
case NGAP_ProcedureCode_id_InitialUEMessage:
res = asn_encode_to_new_buffer(NULL, ATS_CANONICAL_XER, &asn_DEF_NGAP_NGAP_PDU, pdu);
free(res.buffer);
break;
case NGAP_ProcedureCode_id_NASNonDeliveryIndication:
res = asn_encode_to_new_buffer(NULL, ATS_CANONICAL_XER, &asn_DEF_NGAP_NGAP_PDU, pdu);
free(res.buffer);
break;
case NGAP_ProcedureCode_id_UEContextReleaseRequest:
res = asn_encode_to_new_buffer(NULL, ATS_CANONICAL_XER, &asn_DEF_NGAP_NGAP_PDU, pdu);
free(res.buffer);
break;
case NGAP_ProcedureCode_id_PathSwitchRequest:
res = asn_encode_to_new_buffer(NULL, ATS_CANONICAL_XER, &asn_DEF_NGAP_NGAP_PDU, pdu);
free(res.buffer);
break;
case NGAP_ProcedureCode_id_PDUSessionResourceModifyIndication:
res = asn_encode_to_new_buffer(NULL, ATS_CANONICAL_XER, &asn_DEF_NGAP_NGAP_PDU, pdu);
free(res.buffer);
break;
default:
NGAP_DEBUG("Unknown procedure ID (%d) for initiating message\n",
(int)pdu->choice.initiatingMessage->procedureCode);
return -1;
}
if (asn1_xer_print) {
xer_fprint(stdout, &asn_DEF_NGAP_NGAP_PDU, (void *)pdu);
}
memset(&res, 0, sizeof(res));
res = asn_encode_to_new_buffer(NULL, ATS_ALIGNED_CANONICAL_PER, &asn_DEF_NGAP_NGAP_PDU, pdu);
*buffer = res.buffer;
*len = res.result.encoded;
return 0;
}
static inline
int ngap_gNB_encode_successfull_outcome(NGAP_NGAP_PDU_t *pdu,
uint8_t **buffer, uint32_t *len) {
asn_encode_to_new_buffer_result_t res = { NULL, {0, NULL, NULL} };
DevAssert(pdu != NULL);
switch(pdu->choice.successfulOutcome->procedureCode) {
case NGAP_ProcedureCode_id_InitialContextSetup:
res = asn_encode_to_new_buffer(NULL, ATS_CANONICAL_XER, &asn_DEF_NGAP_NGAP_PDU, pdu);
free(res.buffer);
break;
case NGAP_ProcedureCode_id_UEContextRelease:
res = asn_encode_to_new_buffer(NULL, ATS_CANONICAL_XER, &asn_DEF_NGAP_NGAP_PDU, pdu);
free(res.buffer);
break;
case NGAP_ProcedureCode_id_PDUSessionResourceSetup:
res = asn_encode_to_new_buffer(NULL, ATS_CANONICAL_XER, &asn_DEF_NGAP_NGAP_PDU, pdu);
free(res.buffer);
NGAP_INFO("PDUSESSIONSetup successful message\n");
break;
case NGAP_ProcedureCode_id_PDUSessionResourceModify:
res = asn_encode_to_new_buffer(NULL, ATS_CANONICAL_XER, &asn_DEF_NGAP_NGAP_PDU, pdu);
free(res.buffer);
NGAP_INFO("PDUSESSIONModify successful message\n");
break;
case NGAP_ProcedureCode_id_PDUSessionResourceRelease:
res = asn_encode_to_new_buffer(NULL, ATS_CANONICAL_XER, &asn_DEF_NGAP_NGAP_PDU, pdu);
free(res.buffer);
NGAP_INFO("PDUSESSION Release successful message\n");
break;
default:
NGAP_WARN("Unknown procedure ID (%d) for successfull outcome message\n",
(int)pdu->choice.successfulOutcome->procedureCode);
return -1;
}
if (asn1_xer_print) {
xer_fprint(stdout, &asn_DEF_NGAP_NGAP_PDU, (void *)pdu);
}
memset(&res, 0, sizeof(res));
res = asn_encode_to_new_buffer(NULL, ATS_ALIGNED_CANONICAL_PER, &asn_DEF_NGAP_NGAP_PDU, pdu);
*buffer = res.buffer;
*len = res.result.encoded;
return 0;
}
static inline
int ngap_gNB_encode_unsuccessfull_outcome(NGAP_NGAP_PDU_t *pdu,
uint8_t **buffer, uint32_t *len) {
asn_encode_to_new_buffer_result_t res = { NULL, {0, NULL, NULL} };
DevAssert(pdu != NULL);
switch(pdu->choice.unsuccessfulOutcome->procedureCode) {
case NGAP_ProcedureCode_id_InitialContextSetup:
res = asn_encode_to_new_buffer(NULL, ATS_CANONICAL_XER, &asn_DEF_NGAP_NGAP_PDU, pdu);
free(res.buffer);
break;
default:
NGAP_DEBUG("Unknown procedure ID (%d) for unsuccessfull outcome message\n",
(int)pdu->choice.unsuccessfulOutcome->procedureCode);
return -1;
}
if (asn1_xer_print) {
xer_fprint(stdout, &asn_DEF_NGAP_NGAP_PDU, (void *)pdu);
}
memset(&res, 0, sizeof(res));
res = asn_encode_to_new_buffer(NULL, ATS_ALIGNED_CANONICAL_PER, &asn_DEF_NGAP_NGAP_PDU, pdu);
*buffer = res.buffer;
*len = res.result.encoded;
return 0;
}