Guido CasatiandEduard Vlad
4262203e2d
This 5GMM message is required for an invalid security mode command, e.g. when the MAC integrity fails, or the wrong Security Header is set. * Add encode/decode functions for common IEs in fgmm_lib: this library provides encoding/decoding helpers for IEs shared across multiple NAS messages. The goal is to avoid the legacy approach of creating separate files per IE * add NAS Cause enc/dec lib * Adopted byte_array_t to handle the buffer Co-authored-by: Eduard Vlad <eduard.vlad@rwth-aachen.de>
51 lines
1.8 KiB
C
51 lines
1.8 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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#include <stdint.h>
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#include "FGSNASSecurityModeReject.h"
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#include "common/utils/ds/byte_array.h"
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#include "fgmm_lib.h"
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int encode_fgs_security_mode_reject(byte_array_t *buffer, const fgs_security_mode_reject_msg *msg)
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{
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if (buffer->len < 1)
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return -1; // nothing to encode
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// 5GMM cause (Mandatory)
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return encode_fgs_nas_cause(buffer, &msg->cause);
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}
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/** @brief Decode Security Mode Reject (8.2.18 of 3GPP TS 24.501) */
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int decode_fgs_security_mode_reject(fgs_security_mode_reject_msg *msg, const byte_array_t *buffer)
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{
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if (buffer->len < 1)
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return -1; // nothing to decode
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// 5GMM cause (Mandatory)
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return decode_fgs_nas_cause(&msg->cause, buffer);
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}
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bool eq_sec_mode_reject(const fgs_security_mode_reject_msg *a, const fgs_security_mode_reject_msg *b)
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{
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_NAS_EQ_CHECK_INT(a->cause, b->cause);
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return true;
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}
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