/******************************************************************************* OpenAirInterface Copyright(c) 1999 - 2014 Eurecom OpenAirInterface is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. OpenAirInterface is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenAirInterface.The full GNU General Public License is included in this distribution in the file called "COPYING". If not, see . Contact Information OpenAirInterface Admin: openair_admin@eurecom.fr OpenAirInterface Tech : openair_tech@eurecom.fr OpenAirInterface Dev : openair4g-devel@lists.eurecom.fr Address : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE *******************************************************************************/ /* play_scenario_decode.c ------------------- AUTHOR : Lionel GAUTHIER COMPANY : EURECOM EMAIL : Lionel.Gauthier@eurecom.fr */ #include "intertask_interface.h" #include "platform_types.h" #include "s1ap_ies_defs.h" #include "s1ap_eNB_decoder.h" #include "assertions.h" #include "play_scenario.h" //------------------------------------------------------------------------------ int et_s1ap_decode_initiating_message(s1ap_message *message, S1ap_InitiatingMessage_t *initiating_p) { int ret = -1; DevAssert(initiating_p != NULL); message->procedureCode = initiating_p->procedureCode; message->criticality = initiating_p->criticality; switch(initiating_p->procedureCode) { case S1ap_ProcedureCode_id_downlinkNASTransport: ret = s1ap_decode_s1ap_downlinknastransporties(&message->msg.s1ap_DownlinkNASTransportIEs,&initiating_p->value); break; case S1ap_ProcedureCode_id_InitialContextSetup: ret = s1ap_decode_s1ap_initialcontextsetuprequesties(&message->msg.s1ap_InitialContextSetupRequestIEs, &initiating_p->value); break; case S1ap_ProcedureCode_id_UEContextRelease: ret = s1ap_decode_s1ap_uecontextreleasecommandies(&message->msg.s1ap_UEContextReleaseCommandIEs, &initiating_p->value); break; case S1ap_ProcedureCode_id_Paging: ret = s1ap_decode_s1ap_pagingies(&message->msg.s1ap_PagingIEs, &initiating_p->value); break; case S1ap_ProcedureCode_id_uplinkNASTransport: ret = s1ap_decode_s1ap_uplinknastransporties (&message->msg.s1ap_UplinkNASTransportIEs, &initiating_p->value); break; case S1ap_ProcedureCode_id_S1Setup: ret = s1ap_decode_s1ap_s1setuprequesties (&message->msg.s1ap_S1SetupRequestIEs, &initiating_p->value); break; case S1ap_ProcedureCode_id_initialUEMessage: ret = s1ap_decode_s1ap_initialuemessageies (&message->msg.s1ap_InitialUEMessageIEs, &initiating_p->value); break; case S1ap_ProcedureCode_id_UEContextReleaseRequest: ret = s1ap_decode_s1ap_uecontextreleaserequesties (&message->msg.s1ap_UEContextReleaseRequestIEs, &initiating_p->value); break; case S1ap_ProcedureCode_id_UECapabilityInfoIndication: ret = s1ap_decode_s1ap_uecapabilityinfoindicationies (&message->msg.s1ap_UECapabilityInfoIndicationIEs, &initiating_p->value); break; case S1ap_ProcedureCode_id_NASNonDeliveryIndication: ret = s1ap_decode_s1ap_nasnondeliveryindication_ies (&message->msg.s1ap_NASNonDeliveryIndication_IEs, &initiating_p->value); break; default: AssertFatal( 0 , "Unknown procedure ID (%d) for initiating message\n", (int)initiating_p->procedureCode); return -1; } return ret; } //------------------------------------------------------------------------------ int et_s1ap_decode_successful_outcome(s1ap_message *message, S1ap_SuccessfulOutcome_t *successfullOutcome_p) { int ret = -1; DevAssert(successfullOutcome_p != NULL); message->procedureCode = successfullOutcome_p->procedureCode; message->criticality = successfullOutcome_p->criticality; switch(successfullOutcome_p->procedureCode) { case S1ap_ProcedureCode_id_S1Setup: ret = s1ap_decode_s1ap_s1setupresponseies( &message->msg.s1ap_S1SetupResponseIEs, &successfullOutcome_p->value); break; case S1ap_ProcedureCode_id_InitialContextSetup: ret = s1ap_decode_s1ap_initialcontextsetupresponseies (&message->msg.s1ap_InitialContextSetupResponseIEs, &successfullOutcome_p->value); break; case S1ap_ProcedureCode_id_UEContextRelease: ret = s1ap_decode_s1ap_uecontextreleasecompleteies (&message->msg.s1ap_UEContextReleaseCompleteIEs, &successfullOutcome_p->value); break; default: AssertFatal(0, "Unknown procedure ID (%d) for successfull outcome message\n", (int)successfullOutcome_p->procedureCode); return -1; } return ret; } //------------------------------------------------------------------------------ int et_s1ap_decode_unsuccessful_outcome(s1ap_message *message, S1ap_UnsuccessfulOutcome_t *unSuccessfullOutcome_p) { int ret = -1; DevAssert(unSuccessfullOutcome_p != NULL); message->procedureCode = unSuccessfullOutcome_p->procedureCode; message->criticality = unSuccessfullOutcome_p->criticality; switch(unSuccessfullOutcome_p->procedureCode) { case S1ap_ProcedureCode_id_S1Setup: ret = s1ap_decode_s1ap_s1setupfailureies(&message->msg.s1ap_S1SetupFailureIEs, &unSuccessfullOutcome_p->value); break; case S1ap_ProcedureCode_id_InitialContextSetup: ret = s1ap_decode_s1ap_initialcontextsetupfailureies (&message->msg.s1ap_InitialContextSetupFailureIEs, &unSuccessfullOutcome_p->value); break; default: AssertFatal(0,"Unknown procedure ID (%d) for unsuccessfull outcome message\n", (int)unSuccessfullOutcome_p->procedureCode); break; } return ret; } //------------------------------------------------------------------------------ int et_s1ap_decode_pdu(S1AP_PDU_t * const pdu, s1ap_message * const message, const uint8_t * const buffer, const uint32_t length) { asn_dec_rval_t dec_ret; DevAssert(buffer != NULL); memset((void *)pdu, 0, sizeof(S1AP_PDU_t)); dec_ret = aper_decode(NULL, &asn_DEF_S1AP_PDU, (void **)&pdu, buffer, length, 0, 0); if (dec_ret.code != RC_OK) { S1AP_ERROR("Failed to decode pdu\n"); return -1; } message->direction = pdu->present; switch(pdu->present) { case S1AP_PDU_PR_initiatingMessage: return et_s1ap_decode_initiating_message(message, &pdu->choice.initiatingMessage); case S1AP_PDU_PR_successfulOutcome: return et_s1ap_decode_successful_outcome(message, &pdu->choice.successfulOutcome); case S1AP_PDU_PR_unsuccessfulOutcome: return et_s1ap_decode_unsuccessful_outcome(message, &pdu->choice.unsuccessfulOutcome); default: AssertFatal(0, "Unknown presence (%d) or not implemented\n", (int)pdu->present); break; } return -1; } //------------------------------------------------------------------------------ void et_decode_s1ap(et_s1ap_t * const s1ap) { if (NULL != s1ap) { if (et_s1ap_decode_pdu(&s1ap->pdu, &s1ap->message, s1ap->binary_stream, s1ap->binary_stream_allocated_size) < 0) { AssertFatal (0, "ERROR %s() Cannot decode S1AP message!\n", __FUNCTION__); } } }