renamed openair-cn to openair3
git-svn-id: http://svn.eurecom.fr/openair4G/trunk@7886 818b1a75-f10b-46b9-bf7c-635c3b92a50f
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gauthier
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/*
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* Copyright (c) 2015, EURECOM (www.eurecom.fr)
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* The views and conclusions contained in the software and documentation are those
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* of the authors and should not be interpreted as representing official policies,
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* either expressed or implied, of the FreeBSD Project.
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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 <string.h>
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#include "TLVEncoder.h"
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#include "TLVDecoder.h"
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#include "UeNetworkCapability.h"
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int decode_ue_network_capability(UeNetworkCapability *uenetworkcapability, uint8_t iei, uint8_t *buffer, uint32_t len)
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{
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int decoded = 0;
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uint8_t ielen = 0;
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if (iei > 0) {
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CHECK_IEI_DECODER(iei, *buffer);
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decoded++;
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}
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DECODE_U8(buffer + decoded, ielen, decoded);
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memset(uenetworkcapability, 0, sizeof(UeNetworkCapability));
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LOG_TRACE(INFO, "decode_ue_network_capability len = %d",ielen);
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CHECK_LENGTH_DECODER(len - decoded, ielen);
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uenetworkcapability->eea = *(buffer + decoded);
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decoded++;
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uenetworkcapability->eia = *(buffer + decoded);
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decoded++;
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/* Parts below not mandatory and may not be present */
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if (ielen > 2) {
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uenetworkcapability->uea = *(buffer + decoded);
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decoded++;
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if (ielen > 3) {
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uenetworkcapability->ucs2 = (*(buffer + decoded) >> 7) & 0x1;
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uenetworkcapability->uia = *(buffer + decoded) & 0x7f;
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decoded++;
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uenetworkcapability->umts_present =1;
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LOG_TRACE(INFO, "uenetworkcapability decoded UMTS\n");
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if (ielen > 4) {
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uenetworkcapability->spare = (*(buffer + decoded) >> 5) & 0x7;
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uenetworkcapability->csfb = (*(buffer + decoded) >> 4) & 0x1;
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uenetworkcapability->lpp = (*(buffer + decoded) >> 3) & 0x1;
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uenetworkcapability->lcs = (*(buffer + decoded) >> 2) & 0x1;
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uenetworkcapability->srvcc = (*(buffer + decoded) >> 1) & 0x1;
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uenetworkcapability->nf = *(buffer + decoded) & 0x1;
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decoded++;
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uenetworkcapability->gprs_present =1;
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LOG_TRACE(INFO, "uenetworkcapability decoded GPRS\n");
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}
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#warning "Force GPRS present if UMTS present"
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uenetworkcapability->gprs_present =1;
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}
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}
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LOG_TRACE(INFO, "uenetworkcapability decoded=%u\n", decoded);
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if ((ielen + 2) != decoded) {
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decoded = ielen + 1 + (iei > 0 ? 1 : 0) /* Size of header for this IE */;
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LOG_TRACE(INFO, "uenetworkcapability then decoded=%u\n", decoded);
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}
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#if defined (NAS_DEBUG)
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dump_ue_network_capability_xml(uenetworkcapability, iei);
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#endif
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return decoded;
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}
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int encode_ue_network_capability(UeNetworkCapability *uenetworkcapability, uint8_t iei, uint8_t *buffer, uint32_t len)
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{
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uint8_t *lenPtr;
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uint32_t encoded = 0;
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/* Checking IEI and pointer */
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CHECK_PDU_POINTER_AND_LENGTH_ENCODER(buffer, UE_NETWORK_CAPABILITY_MINIMUM_LENGTH, len);
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#if defined (NAS_DEBUG)
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dump_ue_network_capability_xml(uenetworkcapability, iei);
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#endif
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if (iei > 0) {
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*buffer = iei;
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encoded++;
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}
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lenPtr = (buffer + encoded);
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encoded ++;
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*(buffer + encoded) = uenetworkcapability->eea;
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encoded++;
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*(buffer + encoded) = uenetworkcapability->eia;
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encoded++;
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LOG_TRACE(INFO, "uenetworkcapability encoded EPS %u\n", encoded);
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if (uenetworkcapability->umts_present) {
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*(buffer + encoded) = uenetworkcapability->uea;
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encoded++;
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*(buffer + encoded) = 0x00 | ((uenetworkcapability->ucs2 & 0x1) << 7) |
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(uenetworkcapability->uia & 0x7f);
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encoded++;
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LOG_TRACE(INFO, "uenetworkcapability encoded UMTS %u\n", encoded);
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}
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if (uenetworkcapability->gprs_present) {
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#warning "Force gea to 0x60"
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*(buffer + encoded) = 0x00 | 0x60;
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////((uenetworkcapability->spare & 0x7) << 5) | // spare coded as zero
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//((uenetworkcapability->csfb & 0x1) << 4) |
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//((uenetworkcapability->lpp & 0x1) << 3) |
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//((uenetworkcapability->lcs & 0x1) << 2) |
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//((uenetworkcapability->srvcc & 0x1) << 1) |
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//(uenetworkcapability->nf & 0x1);
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encoded++;
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LOG_TRACE(INFO, "uenetworkcapability encoded GPRS %u\n", encoded);
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}
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*lenPtr = encoded - 1 - ((iei > 0) ? 1 : 0);
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return encoded;
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}
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void dump_ue_network_capability_xml(UeNetworkCapability *uenetworkcapability, uint8_t iei)
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{
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printf("<Ue Network Capability>\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(" <EEA>%02x</EEA>\n", uenetworkcapability->eea);
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printf(" <EIA>%02x</EIA>\n", uenetworkcapability->eia);
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printf(" <UEA>%02x</UEA>\n", uenetworkcapability->uea);
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printf(" <UCS2>%u</UCS2>\n", uenetworkcapability->ucs2);
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printf(" <UIA>%u</UIA>\n", uenetworkcapability->uia);
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printf(" <SPARE>%u</SPARE>\n", uenetworkcapability->spare);
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printf(" <CSFB>%u</CSFB>\n", uenetworkcapability->csfb);
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printf(" <LPP>%u</LPP>\n", uenetworkcapability->lpp);
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printf(" <LCS>%u</LCS>\n", uenetworkcapability->lcs);
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printf(" <SR VCC>%u</SR VCC>\n", uenetworkcapability->srvcc);
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printf(" <NF>%u<NF/>\n", uenetworkcapability->nf);
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printf(" <UMTS>%u<UMTS/>\n", uenetworkcapability->umts_present);
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printf(" <GPRS>%u<GPRS/>\n", uenetworkcapability->gprs_present);
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printf("</Ue Network Capability>\n");
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}
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