113 lines
3.6 KiB
C
113 lines
3.6 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.
|
|
*-------------------------------------------------------------------------------
|
|
* For more information about the OpenAirInterface (OAI) Software Alliance:
|
|
* contact@openairinterface.org
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <stdint.h>
|
|
|
|
|
|
#include "TLVEncoder.h"
|
|
#include "TLVDecoder.h"
|
|
#include "NetworkName.h"
|
|
|
|
int decode_network_name(NetworkName *networkname, uint8_t iei, uint8_t *buffer, uint32_t len)
|
|
{
|
|
int decoded = 0;
|
|
uint8_t ielen = 0;
|
|
int decode_result;
|
|
|
|
if (iei > 0) {
|
|
CHECK_IEI_DECODER(iei, *buffer);
|
|
decoded++;
|
|
}
|
|
|
|
ielen = *(buffer + decoded);
|
|
decoded++;
|
|
CHECK_LENGTH_DECODER(len - decoded, ielen);
|
|
|
|
if (((*buffer >> 7) & 0x1) != 1) {
|
|
errorCodeDecoder = TLV_DECODE_VALUE_DOESNT_MATCH;
|
|
return TLV_DECODE_VALUE_DOESNT_MATCH;
|
|
}
|
|
|
|
networkname->codingscheme = (*(buffer + decoded) >> 5) & 0x7;
|
|
networkname->addci = (*(buffer + decoded) >> 4) & 0x1;
|
|
networkname->numberofsparebitsinlastoctet = (*(buffer + decoded) >> 1) & 0x7;
|
|
|
|
if ((decode_result = decode_octet_string(&networkname->textstring, ielen, buffer + decoded, len - decoded)) < 0)
|
|
return decode_result;
|
|
else
|
|
decoded += decode_result;
|
|
|
|
#if defined (NAS_DEBUG)
|
|
dump_network_name_xml(networkname, iei);
|
|
#endif
|
|
return decoded;
|
|
}
|
|
int encode_network_name(NetworkName *networkname, uint8_t iei, uint8_t *buffer, uint32_t len)
|
|
{
|
|
uint8_t *lenPtr;
|
|
uint32_t encoded = 0;
|
|
int encode_result;
|
|
/* Checking IEI and pointer */
|
|
CHECK_PDU_POINTER_AND_LENGTH_ENCODER(buffer, NETWORK_NAME_MINIMUM_LENGTH, len);
|
|
#if defined (NAS_DEBUG)
|
|
dump_network_name_xml(networkname, iei);
|
|
#endif
|
|
|
|
if (iei > 0) {
|
|
*buffer = iei;
|
|
encoded++;
|
|
}
|
|
|
|
lenPtr = (buffer + encoded);
|
|
encoded ++;
|
|
*(buffer + encoded) = 0x00 | (1 << 7) |
|
|
((networkname->codingscheme & 0x7) << 4) |
|
|
((networkname->addci & 0x1) << 3) |
|
|
(networkname->numberofsparebitsinlastoctet & 0x7);
|
|
encoded++;
|
|
|
|
if ((encode_result = encode_octet_string(&networkname->textstring, buffer + encoded, len - encoded)) < 0)
|
|
return encode_result;
|
|
else
|
|
encoded += encode_result;
|
|
|
|
*lenPtr = encoded - 1 - ((iei > 0) ? 1 : 0);
|
|
return encoded;
|
|
}
|
|
|
|
void dump_network_name_xml(NetworkName *networkname, uint8_t iei)
|
|
{
|
|
printf("<Network Name>\n");
|
|
|
|
if (iei > 0)
|
|
/* Don't display IEI if = 0 */
|
|
printf(" <IEI>0x%X</IEI>\n", iei);
|
|
|
|
printf(" <Coding scheme>%u</Coding scheme>\n", networkname->codingscheme);
|
|
printf(" <Add CI>%u</Add CI>\n", networkname->addci);
|
|
printf(" <Number of spare bits in last octet>%u</Number of spare bits in last octet>\n", networkname->numberofsparebitsinlastoctet);
|
|
printf("%s", dump_octet_string_xml(&networkname->textstring));
|
|
printf("</Network Name>\n");
|
|
}
|
|
|