PdnAddress.c 3.25 KB
Newer Older
Lionel Gauthier's avatar
GPLv3  
Lionel Gauthier committed
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28
/*******************************************************************************
    OpenAirInterface
    Copyright(c) 1999 - 2014 Eurecom

    OpenAirInterface is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.


    OpenAirInterface is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with OpenAirInterface.The full GNU General Public License is
   included in this distribution in the file called "COPYING". If not,
   see <http://www.gnu.org/licenses/>.

  Contact Information
  OpenAirInterface Admin: openair_admin@eurecom.fr
  OpenAirInterface Tech : openair_tech@eurecom.fr
  OpenAirInterface Dev  : openair4g-devel@eurecom.fr

  Address      : Eurecom, Compus SophiaTech 450, route des chappes, 06451 Biot, France.

 *******************************************************************************/
Cedric Roux's avatar
 
Cedric Roux committed
29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>


#include "TLVEncoder.h"
#include "TLVDecoder.h"
#include "PdnAddress.h"

int decode_pdn_address(PdnAddress *pdnaddress, 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);
    pdnaddress->pdntypevalue = *(buffer + decoded) & 0x7;
    decoded++;
    if ((decode_result = decode_octet_string(&pdnaddress->pdnaddressinformation, ielen - 1, buffer + decoded, len - decoded)) < 0)
        return decode_result;
    else
        decoded += decode_result;
#if defined (NAS_DEBUG)
    dump_pdn_address_xml(pdnaddress, iei);
#endif
    return decoded;
}
int encode_pdn_address(PdnAddress *pdnaddress, 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, PDN_ADDRESS_MINIMUM_LENGTH, len);
#if defined (NAS_DEBUG)
    dump_pdn_address_xml(pdnaddress, iei);
#endif
    if (iei > 0)
    {
        *buffer = iei;
        encoded++;
    }
    lenPtr  = (buffer + encoded);
    encoded ++;
    *(buffer + encoded) = 0x00 |
    (pdnaddress->pdntypevalue & 0x7);
    encoded++;
    if ((encode_result = encode_octet_string(&pdnaddress->pdnaddressinformation, buffer + encoded, len - encoded)) < 0)
        return encode_result;
    else
        encoded += encode_result;
    *lenPtr = encoded - 1 - ((iei > 0) ? 1 : 0);
    return encoded;
}

void dump_pdn_address_xml(PdnAddress *pdnaddress, uint8_t iei)
{
    printf("<Pdn Address>\n");
    if (iei > 0)
        /* Don't display IEI if = 0 */
        printf("    <IEI>0x%X</IEI>\n", iei);
    printf("    <PDN type value>%u</PDN type value>\n", pdnaddress->pdntypevalue);
97
    printf("%s", dump_octet_string_xml(&pdnaddress->pdnaddressinformation));
Cedric Roux's avatar
 
Cedric Roux committed
98 99 100
    printf("</Pdn Address>\n");
}