203 lines
7.3 KiB
C
203 lines
7.3 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 f1ap_decoder.c
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* \brief f1ap pdu decode procedures
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* \author EURECOM/NTUST
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* \date 2018
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* \version 0.1
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* \company Eurecom
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* \email: navid.nikaein@eurecom.fr, bing-kai.hong@eurecom.fr
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* \note
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* \warning
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*/
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#include "f1ap_common.h"
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#include "f1ap_decoder.h"
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int asn1_decoder_xer_print = 0;
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static int f1ap_decode_initiating_message(F1AP_F1AP_PDU_t *pdu) {
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//MessageDef *message_p;
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//MessagesIds message_id;
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//asn_encode_to_new_buffer_result_t res = { NULL, {0, NULL, NULL} };
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DevAssert(pdu != NULL);
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switch(pdu->choice.initiatingMessage->procedureCode) {
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case F1AP_ProcedureCode_id_F1Setup:
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//res = asn_encode_to_new_buffer(NULL, ATS_CANONICAL_XER, &asn_DEF_F1AP_F1AP_PDU, pdu);
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LOG_I(F1AP, "%s(): F1AP_ProcedureCode_id_F1Setup\n", __func__);
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break;
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case F1AP_ProcedureCode_id_gNBCUConfigurationUpdate:
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//res = asn_encode_to_new_buffer(NULL, ATS_CANONICAL_XER, &asn_DEF_F1AP_F1AP_PDU, pdu);
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LOG_I(F1AP, "%s(): F1AP_ProcedureCode_id_gNBCUConfigurationUpdate\n", __func__);
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break;
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case F1AP_ProcedureCode_id_InitialULRRCMessageTransfer:
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//res = asn_encode_to_new_buffer(NULL, ATS_CANONICAL_XER, &asn_DEF_F1AP_F1AP_PDU, pdu);
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LOG_I(F1AP, "%s(): F1AP_ProcedureCode_id_InitialULRRCMessageTransfer\n", __func__);
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break;
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case F1AP_ProcedureCode_id_DLRRCMessageTransfer:
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//res = asn_encode_to_new_buffer(NULL, ATS_CANONICAL_XER, &asn_DEF_F1AP_F1AP_PDU, pdu);
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LOG_I(F1AP, "%s(): F1AP_ProcedureCode_id_DLRRCMessageTransfer\n", __func__);
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break;
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case F1AP_ProcedureCode_id_ULRRCMessageTransfer:
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//res = asn_encode_to_new_buffer(NULL, ATS_CANONICAL_XER, &asn_DEF_F1AP_F1AP_PDU, pdu);
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LOG_I(F1AP, "%s(): F1AP_ProcedureCode_id_ULRRCMessageTransfer\n", __func__);
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break;
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case F1AP_ProcedureCode_id_UEContextRelease:
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LOG_I(F1AP, "%s(): F1AP_ProcedureCode_id_UEContextRelease\n", __func__);
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break;
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case F1AP_ProcedureCode_id_UEContextReleaseRequest:
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LOG_I(F1AP, "%s(): F1AP_ProcedureCode_id_UEContextReleaseRequest\n", __func__);
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break;
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case F1AP_ProcedureCode_id_UEContextSetup:
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LOG_I(F1AP, "%s(): F1AP_ProcedureCode_id_UEContextSetup\n", __func__);
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break;
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case F1AP_ProcedureCode_id_UEContextModification:
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LOG_I(F1AP, "%s(): F1AP_ProcedureCode_id_UEContextModification\n", __func__);
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break;
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// case F1AP_ProcedureCode_id_InitialContextSetup:
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// res = asn_encode_to_new_buffer(NULL, ATS_CANONICAL_XER, &asn_DEF_F1AP_F1AP_PDU, pdu);
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// message_id = F1AP_INITIAL_CONTEXT_SETUP_LOG;
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// message_p = itti_alloc_new_message_sized(TASK_F1AP, message_id,
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// res.result.encoded + sizeof (IttiMsgText));
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// message_p->ittiMsg.f1ap_initial_context_setup_log.size = res.result.encoded;
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// memcpy(&message_p->ittiMsg.f1ap_initial_context_setup_log.text, res.buffer, res.result.encoded);
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// itti_send_msg_to_task(TASK_UNKNOWN, INSTANCE_DEFAULT, message_p);
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// free(res.buffer);
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// break;
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default:
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// F1AP_ERROR("Unknown procedure ID (%d) for initiating message\n",
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// (int)pdu->choice.initiatingMessage->procedureCode);
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LOG_E(F1AP, "Unknown procedure ID (%d) for initiating message\n",
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(int)pdu->choice.initiatingMessage->procedureCode);
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AssertFatal( 0, "Unknown procedure ID (%d) for initiating message\n",
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(int)pdu->choice.initiatingMessage->procedureCode);
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return -1;
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}
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return 0;
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}
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static int f1ap_decode_successful_outcome(F1AP_F1AP_PDU_t *pdu) {
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DevAssert(pdu != NULL);
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switch(pdu->choice.successfulOutcome->procedureCode) {
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case F1AP_ProcedureCode_id_F1Setup:
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LOG_I(F1AP, "%s(): F1AP_ProcedureCode_id_F1Setup\n", __func__);
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break;
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case F1AP_ProcedureCode_id_gNBCUConfigurationUpdate:
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LOG_I(F1AP, "%s(): F1AP_ProcedureCode_id_gNBCUConfigurationUpdate\n", __func__);
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break;
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case F1AP_ProcedureCode_id_UEContextRelease:
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LOG_I(F1AP, "%s(): F1AP_ProcedureCode_id_UEContextRelease\n", __func__);
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break;
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case F1AP_ProcedureCode_id_UEContextSetup:
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LOG_I(F1AP, "%s(): F1AP_ProcedureCode_id_UEContextSetup\n", __func__);
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break;
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case F1AP_ProcedureCode_id_UEContextModification:
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LOG_I(F1AP, "%s(): F1AP_ProcedureCode_id_UEContextModification\n", __func__);
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break;
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default:
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LOG_E(F1AP,"Unknown procedure ID (%d) for successfull outcome message\n",
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(int)pdu->choice.successfulOutcome->procedureCode);
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return -1;
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}
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return 0;
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}
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static int f1ap_decode_unsuccessful_outcome(F1AP_F1AP_PDU_t *pdu) {
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DevAssert(pdu != NULL);
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switch(pdu->choice.unsuccessfulOutcome->procedureCode) {
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case F1AP_ProcedureCode_id_F1Setup:
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LOG_I(F1AP, "%s(): F1AP_ProcedureCode_id_F1Setup\n", __func__);
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break;
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default:
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// F1AP_ERROR("Unknown procedure ID (%d) for unsuccessfull outcome message\n",
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// (int)pdu->choice.unsuccessfulOutcome->procedureCode);
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LOG_E(F1AP, "Unknown procedure ID (%d) for unsuccessfull outcome message\n",
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(int)pdu->choice.unsuccessfulOutcome->procedureCode);
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return -1;
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}
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return 0;
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}
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int f1ap_decode_pdu(F1AP_F1AP_PDU_t *pdu, const uint8_t *const buffer, uint32_t length) {
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asn_dec_rval_t dec_ret;
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DevAssert(buffer != NULL);
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dec_ret = aper_decode(NULL,
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&asn_DEF_F1AP_F1AP_PDU,
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(void **)&pdu,
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buffer,
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length,
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0,
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0);
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if (asn1_decoder_xer_print) {
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LOG_E(F1AP, "----------------- ASN1 DECODER PRINT START----------------- \n");
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xer_fprint(stdout, &asn_DEF_F1AP_F1AP_PDU, pdu);
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LOG_E(F1AP, "----------------- ASN1 DECODER PRINT END ----------------- \n");
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}
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//LOG_I(F1AP, "f1ap_decode_pdu.dec_ret.code = %d\n", dec_ret.code);
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if (dec_ret.code != RC_OK) {
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AssertFatal(1==0,"Failed to decode pdu\n");
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return -1;
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}
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switch(pdu->present) {
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case F1AP_F1AP_PDU_PR_initiatingMessage:
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return f1ap_decode_initiating_message(pdu);
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case F1AP_F1AP_PDU_PR_successfulOutcome:
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return f1ap_decode_successful_outcome(pdu);
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case F1AP_F1AP_PDU_PR_unsuccessfulOutcome:
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return f1ap_decode_unsuccessful_outcome(pdu);
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default:
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LOG_E(F1AP, "Unknown presence (%d) or not implemented\n", (int)pdu->present);
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break;
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}
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return -1;
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}
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