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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 x2ap_eNB_decoder.c
* \brief x2ap decoder procedures for eNB
* \author Konstantinos Alexandris <Konstantinos.Alexandris@eurecom.fr>, Cedric Roux <Cedric.Roux@eurecom.fr>, Navid Nikaein <Navid.Nikaein@eurecom.fr>
* \date 2018
* \version 1.0
*/
#include <stdio.h>
#include "assertions.h"
#include "intertask_interface.h"
#include "x2ap_common.h"
#include "x2ap_eNB_decoder.h"
static int x2ap_eNB_decode_initiating_message(X2AP_X2AP_PDU_t *pdu)
{
DevAssert(pdu != NULL);
switch(pdu->choice.initiatingMessage.procedureCode) {
case X2AP_ProcedureCode_id_x2Setup:
//asn_encode_to_new_buffer(NULL, ATS_CANONICAL_XER, &asn_DEF_X2AP_X2AP_PDU, pdu);
X2AP_INFO("x2ap_eNB_decode_initiating_message!\n");
break;
case X2AP_ProcedureCode_id_handoverPreparation:
//asn_encode_to_new_buffer(NULL, ATS_CANONICAL_XER, &asn_DEF_X2AP_X2AP_PDU, pdu);
X2AP_INFO("x2ap_eNB_decode_initiating_message!\n");
break;
case X2AP_ProcedureCode_id_uEContextRelease:
//asn_encode_to_new_buffer(NULL, ATS_CANONICAL_XER, &asn_DEF_X2AP_X2AP_PDU, pdu);
X2AP_INFO("x2ap_eNB_decode_initiating_message!\n");
break;
case X2AP_ProcedureCode_id_handoverCancel:
//asn_encode_to_new_buffer(NULL, ATS_CANONICAL_XER, &asn_DEF_X2AP_X2AP_PDU, pdu);
X2AP_INFO("x2ap_eNB_decode_initiating_message!\n");
break;
case X2AP_ProcedureCode_id_endcX2Setup:
X2AP_INFO("X2AP_ProcedureCode_id_endcX2Setup message!\n");
break;
case X2AP_ProcedureCode_id_sgNBAdditionPreparation:
X2AP_INFO("X2AP_ProcedureCode_id_sgNBAdditionPreparation message!\n");
break;
case X2AP_ProcedureCode_id_sgNBReconfigurationCompletion:
X2AP_INFO("X2AP_ProcedureCode_id_sgNBReconfigurationCompletion message!\n");
break;
default:
X2AP_ERROR("Unknown procedure ID (%d) for initiating message\n",
(int)pdu->choice.initiatingMessage.procedureCode);
AssertFatal( 0, "Unknown procedure ID (%d) for initiating message\n",
(int)pdu->choice.initiatingMessage.procedureCode);
return -1;
}
return 0;
}
static int x2ap_eNB_decode_successful_outcome(X2AP_X2AP_PDU_t *pdu)
{
DevAssert(pdu != NULL);
switch(pdu->choice.successfulOutcome.procedureCode) {
case X2AP_ProcedureCode_id_x2Setup:
//asn_encode_to_new_buffer(NULL, ATS_CANONICAL_XER, &asn_DEF_X2AP_X2AP_PDU, pdu);
X2AP_INFO("x2ap_eNB_decode_successfuloutcome_message!\n");
break;
case X2AP_ProcedureCode_id_handoverPreparation:
//asn_encode_to_new_buffer(NULL, ATS_CANONICAL_XER, &asn_DEF_X2AP_X2AP_PDU, pdu);
X2AP_INFO("x2ap_eNB_decode_successfuloutcome_message!\n");
break;
case X2AP_ProcedureCode_id_endcX2Setup:
X2AP_INFO("x2ap_eNB_decode_successfuloutcome_message!\n");
break;
case X2AP_ProcedureCode_id_sgNBAdditionPreparation:
X2AP_INFO("x2ap_eNB_decode_successfuloutcome_message!\n");
break;
default:
X2AP_ERROR("Unknown procedure ID (%d) for successfull outcome message\n",
(int)pdu->choice.successfulOutcome.procedureCode);
return -1;
}
return 0;
}
static int x2ap_eNB_decode_unsuccessful_outcome(X2AP_X2AP_PDU_t *pdu)
{
DevAssert(pdu != NULL);
switch(pdu->choice.unsuccessfulOutcome.procedureCode) {
case X2AP_ProcedureCode_id_x2Setup:
//asn_encode_to_new_buffer(NULL, ATS_CANONICAL_XER, &asn_DEF_X2AP_X2AP_PDU, pdu);
X2AP_INFO("x2ap_eNB_decode_unsuccessfuloutcome_message!\n");
break;
default:
X2AP_ERROR("Unknown procedure ID (%d) for unsuccessfull outcome message\n",
(int)pdu->choice.unsuccessfulOutcome.procedureCode);
return -1;
}
return 0;
}
int x2ap_eNB_decode_pdu(X2AP_X2AP_PDU_t *pdu, const uint8_t *const buffer, uint32_t length)
{
asn_dec_rval_t dec_ret;
DevAssert(buffer != NULL);
dec_ret = aper_decode(NULL,
&asn_DEF_X2AP_X2AP_PDU,
(void **)&pdu,
buffer,
length,
0,
0);
//if (asn1_xer_print) {
xer_fprint(stdout, &asn_DEF_X2AP_X2AP_PDU, pdu);
//}
if (dec_ret.code != RC_OK) {
X2AP_ERROR("Failed to decode pdu\n");
return -1;
}
switch(pdu->present) {
case X2AP_X2AP_PDU_PR_initiatingMessage:
return x2ap_eNB_decode_initiating_message(pdu);
case X2AP_X2AP_PDU_PR_successfulOutcome:
return x2ap_eNB_decode_successful_outcome(pdu);
case X2AP_X2AP_PDU_PR_unsuccessfulOutcome:
return x2ap_eNB_decode_unsuccessful_outcome(pdu);
default:
X2AP_DEBUG("Unknown presence (%d) or not implemented\n", (int)pdu->present);
break;
}
return -1;
}