/* * 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. *------------------------------------------------------------------------------- * For more information about the OpenAirInterface (OAI) Software Alliance: * contact@openairinterface.org */ /*! \file RegistrationAccept.c \brief 5GS registration accept procedures \author Yoshio INOUE, Masayuki HARADA \email: yoshio.inoue@fujitsu.com,masayuki.harada@fujitsu.com \date 2020 \version 0.1 */ #include <stdio.h> #include <stdlib.h> #include <string.h> #include <stdint.h> #include "TLVEncoder.h" #include "TLVDecoder.h" #include "RegistrationAccept.h" #include "assertions.h" int decode_registration_accept(registration_accept_msg *registration_accept, const uint8_t *buffer, uint32_t len) { uint32_t decoded = 0; int decoded_result = 0; /* Decoding mandatory fields */ if ((decoded_result = decode_fgs_registration_result(®istration_accept->fgsregistrationresult, 0, *(buffer + decoded), len - decoded)) < 0) return decoded_result; decoded += decoded_result; if (decoded < len && buffer[decoded] == 0x77) { registration_accept->guti = calloc(1, sizeof(*registration_accept->guti)); if (!registration_accept->guti) return -1; int mi_dec = decode_5gs_mobile_identity(registration_accept->guti, 0x77, buffer + decoded, len - decoded); if (mi_dec < 0) return -1; decoded += mi_dec; } // todo ,Decoding optional fields return decoded; } int encode_registration_accept(registration_accept_msg *registration_accept, uint8_t *buffer, uint32_t len) { int encoded = 0; LOG_FUNC_IN; *(buffer + encoded) = encode_fgs_registration_result(®istration_accept->fgsregistrationresult); encoded = encoded + 2; if (registration_accept->guti) { int mi_enc = encode_5gs_mobile_identity(registration_accept->guti, 0x77, buffer + encoded, len - encoded); if (mi_enc < 0) return mi_enc; encoded += mi_enc; } // todo ,Encoding optional fields LOG_FUNC_RETURN(encoded); }