Files
openairinterface5g/openair3/NGAP/ngap_common.c
T
Guido Casati 615f5ef663 Add decoding functions for common NGAP IEs and use in stack
* Functions added:
  decode_ngap_guami
  decode_ngap_UEAggregateMaximumBitRate
  decode_ngap_nssai
  decode_ngap_security_capabilities
  decode_ngap_mobility_restriction
* Adopt these functions in the common NGAP library
2025-06-05 11:35:45 +02:00

117 lines
3.8 KiB
C

/*
* 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.
*-------------------------------------------------------------------------------
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*/
/*! \file ngap_common.c
* \brief ngap procedures for both gNB and AMF
* \author Yoshio INOUE, Masayuki HARADA
* \email yoshio.inoue@fujitsu.com,masayuki.harada@fujitsu.com (yoshio.inoue%40fujitsu.com%2cmasayuki.harada%40fujitsu.com)
* \date 2020
* \version 0.1
*/
#include <stdint.h>
#include "conversions.h"
#include "ngap_common.h"
int asn1_xer_print = 0;
void encode_ngap_cause(NGAP_Cause_t *out, const ngap_cause_t *in)
{
switch (in->type) {
case NGAP_CAUSE_RADIO_NETWORK:
out->present = NGAP_Cause_PR_radioNetwork;
out->choice.radioNetwork = in->value;
break;
case NGAP_CAUSE_TRANSPORT:
out->present = NGAP_Cause_PR_transport;
out->choice.transport = in->value;
break;
case NGAP_CAUSE_NAS:
out->present = NGAP_Cause_PR_nas;
out->choice.nas = in->value;
break;
case NGAP_CAUSE_PROTOCOL:
out->present = NGAP_Cause_PR_protocol;
out->choice.protocol = in->value;
break;
case NGAP_CAUSE_MISC:
out->present = NGAP_Cause_PR_misc;
out->choice.misc = in->value;
break;
case NGAP_CAUSE_NOTHING:
default:
AssertFatal(false, "Unknown failure cause %d\n", in->type);
break;
}
}
nr_guami_t decode_ngap_guami(const NGAP_GUAMI_t *in)
{
nr_guami_t out = {0};
TBCD_TO_MCC_MNC(&in->pLMNIdentity, out.mcc, out.mnc, out.mnc_len);
OCTET_STRING_TO_INT8(&in->aMFRegionID, out.amf_region_id);
OCTET_STRING_TO_INT16(&in->aMFSetID, out.amf_set_id);
OCTET_STRING_TO_INT8(&in->aMFPointer, out.amf_pointer);
return out;
}
ngap_ambr_t decode_ngap_UEAggregateMaximumBitRate(const NGAP_UEAggregateMaximumBitRate_t *in)
{
ngap_ambr_t ambr = {0};
asn_INTEGER2ulong(&in->uEAggregateMaximumBitRateUL, &ambr.br_ul);
asn_INTEGER2ulong(&in->uEAggregateMaximumBitRateDL, &ambr.br_dl);
return ambr;
}
nssai_t decode_ngap_nssai(const NGAP_S_NSSAI_t *in)
{
nssai_t nssai = {0};
OCTET_STRING_TO_INT8(&in->sST, nssai.sst);
if (in->sD != NULL) {
BUFFER_TO_INT24(in->sD->buf, nssai.sd);
} else {
nssai.sd = 0xffffff;
}
return nssai;
}
ngap_security_capabilities_t decode_ngap_security_capabilities(const NGAP_UESecurityCapabilities_t *in)
{
ngap_security_capabilities_t out = {0};
out.nRencryption_algorithms = BIT_STRING_to_uint16(&in->nRencryptionAlgorithms);
out.nRintegrity_algorithms = BIT_STRING_to_uint16(&in->nRintegrityProtectionAlgorithms);
out.eUTRAencryption_algorithms = BIT_STRING_to_uint16(&in->eUTRAencryptionAlgorithms);
out.eUTRAintegrity_algorithms = BIT_STRING_to_uint16(&in->eUTRAintegrityProtectionAlgorithms);
return out;
}
ngap_mobility_restriction_t decode_ngap_mobility_restriction(const NGAP_MobilityRestrictionList_t *in)
{
ngap_mobility_restriction_t out = {0};
TBCD_TO_MCC_MNC(&in->servingPLMN, out.serving_plmn.mcc, out.serving_plmn.mnc, out.serving_plmn.mnc_digit_length);
return out;
}