Bi-Ruei, Chiu
a247907d3a
1. It's no need to modify LTE-RRC's ASN.1 file for enabling option group feature in generate_asn1. 2. It's no need to patch the C header files generated from LTE-RRC/S1AP/X2AP's ASN.1 in fix_asn1. 3. It's no need to pre-process S1AP/X2AP's ASN.1 for enabling information object class feature by asn1tostruct.py. This commit requires an un-official version of asn1c which are collaboration of asn1c community members and `build_helper` is modified in this commit accordingly : https://github.com/brchiu/asn1c/tree/velichkov_s1ap_plus_option_group This asn1c can also convert ASN.1 of 5G NR RRC (38.331, v15.1.0) and generate C files with -findirect-choice command line option without tweaking ASN.1 file. Examples for how to use this asn1c for S1AP are in S1AP files, e.g. s1ap_eNB_nas_procedures.c and s1ap_eNB_handler.c. There is an modified openair-cn (based on tag 0.5.0) with this new asn1c at : https://github.com/brchiu/openair-cn/tree/new-asn1c Basic S1AP interaction and data transfer operation between OAI eNB and this modified openair-cn has been tested. Note: Community version of asn1c is keeping evolved to provide better usage.
69 lines
2.3 KiB
C
69 lines
2.3 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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/*
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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_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_pdu(S1AP_PDU_t *const pdu, 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_S1AP_PDU_t));
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dec_ret = aper_decode(NULL,
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&asn_DEF_S1AP_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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return dec_ret.code;
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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->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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