215 lines
7.6 KiB
C
215 lines
7.6 KiB
C
/*******************************************************************************
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OpenAirInterface
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Copyright(c) 1999 - 2014 Eurecom
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OpenAirInterface is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenAirInterface is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with OpenAirInterface.The full GNU General Public License is
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included in this distribution in the file called "COPYING". If not,
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see <http://www.gnu.org/licenses/>.
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Contact Information
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OpenAirInterface Admin: openair_admin@eurecom.fr
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OpenAirInterface Tech : openair_tech@eurecom.fr
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OpenAirInterface Dev : openair4g-devel@lists.eurecom.fr
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Address : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE
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*******************************************************************************/
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/*
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play_scenario_decode.c
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-------------------
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AUTHOR : Lionel GAUTHIER
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COMPANY : EURECOM
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EMAIL : Lionel.Gauthier@eurecom.fr
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*/
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#include "intertask_interface.h"
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#include "platform_types.h"
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#include "s1ap_ies_defs.h"
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#include "s1ap_eNB_decoder.h"
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#include "assertions.h"
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#include "play_scenario.h"
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//------------------------------------------------------------------------------
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int et_s1ap_decode_initiating_message(s1ap_message *message, S1ap_InitiatingMessage_t *initiating_p)
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{
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int ret = -1;
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DevAssert(initiating_p != NULL);
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message->procedureCode = initiating_p->procedureCode;
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message->criticality = initiating_p->criticality;
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switch(initiating_p->procedureCode) {
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case S1ap_ProcedureCode_id_downlinkNASTransport:
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ret = s1ap_decode_s1ap_downlinknastransporties(&message->msg.s1ap_DownlinkNASTransportIEs,&initiating_p->value);
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break;
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case S1ap_ProcedureCode_id_InitialContextSetup:
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ret = s1ap_decode_s1ap_initialcontextsetuprequesties(&message->msg.s1ap_InitialContextSetupRequestIEs, &initiating_p->value);
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break;
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case S1ap_ProcedureCode_id_UEContextRelease:
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ret = s1ap_decode_s1ap_uecontextreleasecommandies(&message->msg.s1ap_UEContextReleaseCommandIEs, &initiating_p->value);
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break;
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case S1ap_ProcedureCode_id_Paging:
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ret = s1ap_decode_s1ap_pagingies(&message->msg.s1ap_PagingIEs, &initiating_p->value);
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break;
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case S1ap_ProcedureCode_id_uplinkNASTransport:
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ret = s1ap_decode_s1ap_uplinknastransporties (&message->msg.s1ap_UplinkNASTransportIEs, &initiating_p->value);
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break;
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case S1ap_ProcedureCode_id_S1Setup:
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ret = s1ap_decode_s1ap_s1setuprequesties (&message->msg.s1ap_S1SetupRequestIEs, &initiating_p->value);
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break;
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case S1ap_ProcedureCode_id_initialUEMessage:
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ret = s1ap_decode_s1ap_initialuemessageies (&message->msg.s1ap_InitialUEMessageIEs, &initiating_p->value);
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break;
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case S1ap_ProcedureCode_id_UEContextReleaseRequest:
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ret = s1ap_decode_s1ap_uecontextreleaserequesties (&message->msg.s1ap_UEContextReleaseRequestIEs, &initiating_p->value);
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break;
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case S1ap_ProcedureCode_id_UECapabilityInfoIndication:
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ret = s1ap_decode_s1ap_uecapabilityinfoindicationies (&message->msg.s1ap_UECapabilityInfoIndicationIEs, &initiating_p->value);
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break;
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case S1ap_ProcedureCode_id_NASNonDeliveryIndication:
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ret = s1ap_decode_s1ap_nasnondeliveryindication_ies (&message->msg.s1ap_NASNonDeliveryIndication_IEs, &initiating_p->value);
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break;
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default:
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AssertFatal( 0 , "Unknown procedure ID (%d) for initiating message\n",
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(int)initiating_p->procedureCode);
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return -1;
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}
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return ret;
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}
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//------------------------------------------------------------------------------
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int et_s1ap_decode_successful_outcome(s1ap_message *message, S1ap_SuccessfulOutcome_t *successfullOutcome_p)
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{
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int ret = -1;
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DevAssert(successfullOutcome_p != NULL);
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message->procedureCode = successfullOutcome_p->procedureCode;
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message->criticality = successfullOutcome_p->criticality;
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switch(successfullOutcome_p->procedureCode) {
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case S1ap_ProcedureCode_id_S1Setup:
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ret = s1ap_decode_s1ap_s1setupresponseies(
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&message->msg.s1ap_S1SetupResponseIEs, &successfullOutcome_p->value);
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break;
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case S1ap_ProcedureCode_id_InitialContextSetup:
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ret = s1ap_decode_s1ap_initialcontextsetupresponseies (&message->msg.s1ap_InitialContextSetupResponseIEs, &successfullOutcome_p->value);
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break;
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case S1ap_ProcedureCode_id_UEContextRelease:
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ret = s1ap_decode_s1ap_uecontextreleasecompleteies (&message->msg.s1ap_UEContextReleaseCompleteIEs, &successfullOutcome_p->value);
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break;
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default:
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AssertFatal(0, "Unknown procedure ID (%d) for successfull outcome message\n",
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(int)successfullOutcome_p->procedureCode);
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return -1;
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}
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return ret;
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}
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//------------------------------------------------------------------------------
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int et_s1ap_decode_unsuccessful_outcome(s1ap_message *message, S1ap_UnsuccessfulOutcome_t *unSuccessfullOutcome_p)
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{
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int ret = -1;
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DevAssert(unSuccessfullOutcome_p != NULL);
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message->procedureCode = unSuccessfullOutcome_p->procedureCode;
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message->criticality = unSuccessfullOutcome_p->criticality;
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switch(unSuccessfullOutcome_p->procedureCode) {
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case S1ap_ProcedureCode_id_S1Setup:
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ret = s1ap_decode_s1ap_s1setupfailureies(&message->msg.s1ap_S1SetupFailureIEs, &unSuccessfullOutcome_p->value);
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break;
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case S1ap_ProcedureCode_id_InitialContextSetup:
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ret = s1ap_decode_s1ap_initialcontextsetupfailureies (&message->msg.s1ap_InitialContextSetupFailureIEs, &unSuccessfullOutcome_p->value);
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break;
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default:
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AssertFatal(0,"Unknown procedure ID (%d) for unsuccessfull outcome message\n",
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(int)unSuccessfullOutcome_p->procedureCode);
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break;
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}
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return ret;
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}
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//------------------------------------------------------------------------------
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int et_s1ap_decode_pdu(S1AP_PDU_t * const pdu, s1ap_message * const message, const uint8_t * const buffer, const uint32_t length)
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{
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asn_dec_rval_t dec_ret;
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DevAssert(buffer != NULL);
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memset((void *)pdu, 0, sizeof(S1AP_PDU_t));
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dec_ret = aper_decode(NULL,
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&asn_DEF_S1AP_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 (dec_ret.code != RC_OK) {
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S1AP_ERROR("Failed to decode pdu\n");
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return -1;
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}
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message->direction = pdu->present;
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switch(pdu->present) {
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case S1AP_PDU_PR_initiatingMessage:
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return et_s1ap_decode_initiating_message(message,
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&pdu->choice.initiatingMessage);
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case S1AP_PDU_PR_successfulOutcome:
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return et_s1ap_decode_successful_outcome(message,
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&pdu->choice.successfulOutcome);
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case S1AP_PDU_PR_unsuccessfulOutcome:
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return et_s1ap_decode_unsuccessful_outcome(message,
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&pdu->choice.unsuccessfulOutcome);
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default:
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AssertFatal(0, "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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//------------------------------------------------------------------------------
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void et_decode_s1ap(et_s1ap_t * const s1ap)
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{
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if (NULL != s1ap) {
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if (et_s1ap_decode_pdu(&s1ap->pdu, &s1ap->message, s1ap->binary_stream, s1ap->binary_stream_allocated_size) < 0) {
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AssertFatal (0, "ERROR %s() Cannot decode S1AP message!\n", __FUNCTION__);
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}
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}
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}
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