100 lines
3.4 KiB
C
100 lines
3.4 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 <stdio.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include "TLVEncoder.h"
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#include "TLVDecoder.h"
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#include "CipheringKeySequenceNumber.h"
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int decode_ciphering_key_sequence_number(CipheringKeySequenceNumber *cipheringkeysequencenumber, uint8_t iei, uint8_t *buffer, uint32_t len)
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{
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int decoded = 0;
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CHECK_PDU_POINTER_AND_LENGTH_DECODER(buffer, CIPHERING_KEY_SEQUENCE_NUMBER_MINIMUM_LENGTH, len);
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if (iei > 0) {
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CHECK_IEI_DECODER((*buffer & 0xf0), iei);
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}
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*cipheringkeysequencenumber = *buffer & 0x7;
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decoded++;
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#if defined (NAS_DEBUG)
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dump_ciphering_key_sequence_number_xml(cipheringkeysequencenumber, iei);
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#endif
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return decoded;
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}
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int decode_u8_ciphering_key_sequence_number(CipheringKeySequenceNumber *cipheringkeysequencenumber, uint8_t iei, uint8_t value, uint32_t len)
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{
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int decoded = 0;
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uint8_t *buffer = &value;
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*cipheringkeysequencenumber = *buffer & 0x7;
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decoded++;
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#if defined (NAS_DEBUG)
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dump_ciphering_key_sequence_number_xml(cipheringkeysequencenumber, iei);
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#endif
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return decoded;
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}
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int encode_ciphering_key_sequence_number(CipheringKeySequenceNumber *cipheringkeysequencenumber, uint8_t iei, uint8_t *buffer, uint32_t len)
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{
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uint8_t encoded = 0;
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/* Checking length and pointer */
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CHECK_PDU_POINTER_AND_LENGTH_ENCODER(buffer, CIPHERING_KEY_SEQUENCE_NUMBER_MINIMUM_LENGTH, len);
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#if defined (NAS_DEBUG)
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dump_ciphering_key_sequence_number_xml(cipheringkeysequencenumber, iei);
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#endif
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*(buffer + encoded) = 0x00 | (iei & 0xf0) |
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(*cipheringkeysequencenumber & 0x7);
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encoded++;
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return encoded;
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}
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uint8_t encode_u8_ciphering_key_sequence_number(CipheringKeySequenceNumber *cipheringkeysequencenumber)
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{
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uint8_t bufferReturn;
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uint8_t *buffer = &bufferReturn;
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uint8_t encoded = 0;
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uint8_t iei = 0;
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dump_ciphering_key_sequence_number_xml(cipheringkeysequencenumber, 0);
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*(buffer + encoded) = 0x00 | (iei & 0xf0) |
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(*cipheringkeysequencenumber & 0x7);
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encoded++;
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return bufferReturn;
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}
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void dump_ciphering_key_sequence_number_xml(CipheringKeySequenceNumber *cipheringkeysequencenumber, uint8_t iei)
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{
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printf("<Ciphering Key Sequence Number>\n");
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if (iei > 0)
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/* Don't display IEI if = 0 */
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printf(" <IEI>0x%X</IEI>\n", iei);
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printf(" <Key sequence>%u</Key sequence>\n", *cipheringkeysequencenumber);
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printf("</Ciphering Key Sequence Number>\n");
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}
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