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openairinterface5g/openair-cn/NAS/COMMON/EMM/MSG/TrackingAreaUpdateAccept.c
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/*******************************************************************************
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.
*******************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include "TLVEncoder.h"
#include "TLVDecoder.h"
#include "TrackingAreaUpdateAccept.h"
int decode_tracking_area_update_accept(tracking_area_update_accept_msg *tracking_area_update_accept, uint8_t *buffer, uint32_t len)
{
uint32_t decoded = 0;
int decoded_result = 0;
// Check if we got a NULL pointer and if buffer length is >= minimum length expected for the message.
CHECK_PDU_POINTER_AND_LENGTH_DECODER(buffer, TRACKING_AREA_UPDATE_ACCEPT_MINIMUM_LENGTH, len);
/* Decoding mandatory fields */
if ((decoded_result = decode_u8_eps_update_result(&tracking_area_update_accept->epsupdateresult, 0, *(buffer + decoded) >> 4, len - decoded)) < 0)
return decoded_result;
decoded++;
/* Decoding optional fields */
while(len - decoded > 0) {
uint8_t ieiDecoded = *(buffer + decoded);
/* Type | value iei are below 0x80 so just return the first 4 bits */
if (ieiDecoded >= 0x80)
ieiDecoded = ieiDecoded & 0xf0;
switch(ieiDecoded) {
case TRACKING_AREA_UPDATE_ACCEPT_T3412_VALUE_IEI:
if ((decoded_result =
decode_gprs_timer(&tracking_area_update_accept->t3412value,
TRACKING_AREA_UPDATE_ACCEPT_T3412_VALUE_IEI, buffer +
decoded, len - decoded)) <= 0)
return decoded_result;
decoded += decoded_result;
/* Set corresponding mask to 1 in presencemask */
tracking_area_update_accept->presencemask |= TRACKING_AREA_UPDATE_ACCEPT_T3412_VALUE_PRESENT;
break;
case TRACKING_AREA_UPDATE_ACCEPT_GUTI_IEI:
if ((decoded_result =
decode_eps_mobile_identity(&tracking_area_update_accept->guti,
TRACKING_AREA_UPDATE_ACCEPT_GUTI_IEI, buffer + decoded, len
- decoded)) <= 0)
return decoded_result;
decoded += decoded_result;
/* Set corresponding mask to 1 in presencemask */
tracking_area_update_accept->presencemask |= TRACKING_AREA_UPDATE_ACCEPT_GUTI_PRESENT;
break;
case TRACKING_AREA_UPDATE_ACCEPT_TAI_LIST_IEI:
if ((decoded_result =
decode_tracking_area_identity_list(&tracking_area_update_accept->tailist,
TRACKING_AREA_UPDATE_ACCEPT_TAI_LIST_IEI, buffer + decoded,
len - decoded)) <= 0)
return decoded_result;
decoded += decoded_result;
/* Set corresponding mask to 1 in presencemask */
tracking_area_update_accept->presencemask |= TRACKING_AREA_UPDATE_ACCEPT_TAI_LIST_PRESENT;
break;
case TRACKING_AREA_UPDATE_ACCEPT_EPS_BEARER_CONTEXT_STATUS_IEI:
if ((decoded_result =
decode_eps_bearer_context_status(&tracking_area_update_accept->epsbearercontextstatus,
TRACKING_AREA_UPDATE_ACCEPT_EPS_BEARER_CONTEXT_STATUS_IEI,
buffer + decoded, len - decoded)) <= 0)
return decoded_result;
decoded += decoded_result;
/* Set corresponding mask to 1 in presencemask */
tracking_area_update_accept->presencemask |= TRACKING_AREA_UPDATE_ACCEPT_EPS_BEARER_CONTEXT_STATUS_PRESENT;
break;
case TRACKING_AREA_UPDATE_ACCEPT_LOCATION_AREA_IDENTIFICATION_IEI:
if ((decoded_result =
decode_location_area_identification(&tracking_area_update_accept->locationareaidentification,
TRACKING_AREA_UPDATE_ACCEPT_LOCATION_AREA_IDENTIFICATION_IEI,
buffer + decoded, len - decoded)) <= 0)
return decoded_result;
decoded += decoded_result;
/* Set corresponding mask to 1 in presencemask */
tracking_area_update_accept->presencemask |= TRACKING_AREA_UPDATE_ACCEPT_LOCATION_AREA_IDENTIFICATION_PRESENT;
break;
case TRACKING_AREA_UPDATE_ACCEPT_MS_IDENTITY_IEI:
if ((decoded_result =
decode_mobile_identity(&tracking_area_update_accept->msidentity,
TRACKING_AREA_UPDATE_ACCEPT_MS_IDENTITY_IEI, buffer +
decoded, len - decoded)) <= 0)
return decoded_result;
decoded += decoded_result;
/* Set corresponding mask to 1 in presencemask */
tracking_area_update_accept->presencemask |= TRACKING_AREA_UPDATE_ACCEPT_MS_IDENTITY_PRESENT;
break;
case TRACKING_AREA_UPDATE_ACCEPT_EMM_CAUSE_IEI:
if ((decoded_result =
decode_emm_cause(&tracking_area_update_accept->emmcause,
TRACKING_AREA_UPDATE_ACCEPT_EMM_CAUSE_IEI, buffer +
decoded, len - decoded)) <= 0)
return decoded_result;
decoded += decoded_result;
/* Set corresponding mask to 1 in presencemask */
tracking_area_update_accept->presencemask |= TRACKING_AREA_UPDATE_ACCEPT_EMM_CAUSE_PRESENT;
break;
case TRACKING_AREA_UPDATE_ACCEPT_T3402_VALUE_IEI:
if ((decoded_result =
decode_gprs_timer(&tracking_area_update_accept->t3402value,
TRACKING_AREA_UPDATE_ACCEPT_T3402_VALUE_IEI, buffer +
decoded, len - decoded)) <= 0)
return decoded_result;
decoded += decoded_result;
/* Set corresponding mask to 1 in presencemask */
tracking_area_update_accept->presencemask |= TRACKING_AREA_UPDATE_ACCEPT_T3402_VALUE_PRESENT;
break;
case TRACKING_AREA_UPDATE_ACCEPT_T3423_VALUE_IEI:
if ((decoded_result =
decode_gprs_timer(&tracking_area_update_accept->t3423value,
TRACKING_AREA_UPDATE_ACCEPT_T3423_VALUE_IEI, buffer +
decoded, len - decoded)) <= 0)
return decoded_result;
decoded += decoded_result;
/* Set corresponding mask to 1 in presencemask */
tracking_area_update_accept->presencemask |= TRACKING_AREA_UPDATE_ACCEPT_T3423_VALUE_PRESENT;
break;
case TRACKING_AREA_UPDATE_ACCEPT_EQUIVALENT_PLMNS_IEI:
if ((decoded_result =
decode_plmn_list(&tracking_area_update_accept->equivalentplmns,
TRACKING_AREA_UPDATE_ACCEPT_EQUIVALENT_PLMNS_IEI, buffer +
decoded, len - decoded)) <= 0)
return decoded_result;
decoded += decoded_result;
/* Set corresponding mask to 1 in presencemask */
tracking_area_update_accept->presencemask |= TRACKING_AREA_UPDATE_ACCEPT_EQUIVALENT_PLMNS_PRESENT;
break;
case TRACKING_AREA_UPDATE_ACCEPT_EMERGENCY_NUMBER_LIST_IEI:
if ((decoded_result =
decode_emergency_number_list(&tracking_area_update_accept->emergencynumberlist,
TRACKING_AREA_UPDATE_ACCEPT_EMERGENCY_NUMBER_LIST_IEI,
buffer + decoded, len - decoded)) <= 0)
return decoded_result;
decoded += decoded_result;
/* Set corresponding mask to 1 in presencemask */
tracking_area_update_accept->presencemask |= TRACKING_AREA_UPDATE_ACCEPT_EMERGENCY_NUMBER_LIST_PRESENT;
break;
case TRACKING_AREA_UPDATE_ACCEPT_EPS_NETWORK_FEATURE_SUPPORT_IEI:
if ((decoded_result =
decode_eps_network_feature_support(&tracking_area_update_accept->epsnetworkfeaturesupport,
TRACKING_AREA_UPDATE_ACCEPT_EPS_NETWORK_FEATURE_SUPPORT_IEI,
buffer + decoded, len - decoded)) <= 0)
return decoded_result;
decoded += decoded_result;
/* Set corresponding mask to 1 in presencemask */
tracking_area_update_accept->presencemask |= TRACKING_AREA_UPDATE_ACCEPT_EPS_NETWORK_FEATURE_SUPPORT_PRESENT;
break;
case TRACKING_AREA_UPDATE_ACCEPT_ADDITIONAL_UPDATE_RESULT_IEI:
if ((decoded_result =
decode_additional_update_result(&tracking_area_update_accept->additionalupdateresult,
TRACKING_AREA_UPDATE_ACCEPT_ADDITIONAL_UPDATE_RESULT_IEI,
buffer + decoded, len - decoded)) <= 0)
return decoded_result;
decoded += decoded_result;
/* Set corresponding mask to 1 in presencemask */
tracking_area_update_accept->presencemask |= TRACKING_AREA_UPDATE_ACCEPT_ADDITIONAL_UPDATE_RESULT_PRESENT;
break;
default:
errorCodeDecoder = TLV_DECODE_UNEXPECTED_IEI;
return TLV_DECODE_UNEXPECTED_IEI;
}
}
return decoded;
}
int encode_tracking_area_update_accept(tracking_area_update_accept_msg *tracking_area_update_accept, uint8_t *buffer, uint32_t len)
{
int encoded = 0;
int encode_result = 0;
/* Checking IEI and pointer */
CHECK_PDU_POINTER_AND_LENGTH_ENCODER(buffer, TRACKING_AREA_UPDATE_ACCEPT_MINIMUM_LENGTH, len);
*(buffer + encoded) = ((encode_u8_eps_update_result(&tracking_area_update_accept->epsupdateresult) & 0x0f) << 4) | 0x00;
encoded++;
if ((tracking_area_update_accept->presencemask & TRACKING_AREA_UPDATE_ACCEPT_T3412_VALUE_PRESENT)
== TRACKING_AREA_UPDATE_ACCEPT_T3412_VALUE_PRESENT) {
if ((encode_result =
encode_gprs_timer(&tracking_area_update_accept->t3412value,
TRACKING_AREA_UPDATE_ACCEPT_T3412_VALUE_IEI, buffer + encoded, len
- encoded)) < 0)
// Return in case of error
return encode_result;
else
encoded += encode_result;
}
if ((tracking_area_update_accept->presencemask & TRACKING_AREA_UPDATE_ACCEPT_GUTI_PRESENT)
== TRACKING_AREA_UPDATE_ACCEPT_GUTI_PRESENT) {
if ((encode_result =
encode_eps_mobile_identity(&tracking_area_update_accept->guti,
TRACKING_AREA_UPDATE_ACCEPT_GUTI_IEI, buffer + encoded, len -
encoded)) < 0)
// Return in case of error
return encode_result;
else
encoded += encode_result;
}
if ((tracking_area_update_accept->presencemask & TRACKING_AREA_UPDATE_ACCEPT_TAI_LIST_PRESENT)
== TRACKING_AREA_UPDATE_ACCEPT_TAI_LIST_PRESENT) {
if ((encode_result =
encode_tracking_area_identity_list(&tracking_area_update_accept->tailist,
TRACKING_AREA_UPDATE_ACCEPT_TAI_LIST_IEI, buffer + encoded, len -
encoded)) < 0)
// Return in case of error
return encode_result;
else
encoded += encode_result;
}
if ((tracking_area_update_accept->presencemask & TRACKING_AREA_UPDATE_ACCEPT_EPS_BEARER_CONTEXT_STATUS_PRESENT)
== TRACKING_AREA_UPDATE_ACCEPT_EPS_BEARER_CONTEXT_STATUS_PRESENT) {
if ((encode_result =
encode_eps_bearer_context_status(&tracking_area_update_accept->epsbearercontextstatus,
TRACKING_AREA_UPDATE_ACCEPT_EPS_BEARER_CONTEXT_STATUS_IEI, buffer
+ encoded, len - encoded)) < 0)
// Return in case of error
return encode_result;
else
encoded += encode_result;
}
if ((tracking_area_update_accept->presencemask & TRACKING_AREA_UPDATE_ACCEPT_LOCATION_AREA_IDENTIFICATION_PRESENT)
== TRACKING_AREA_UPDATE_ACCEPT_LOCATION_AREA_IDENTIFICATION_PRESENT) {
if ((encode_result =
encode_location_area_identification(&tracking_area_update_accept->locationareaidentification,
TRACKING_AREA_UPDATE_ACCEPT_LOCATION_AREA_IDENTIFICATION_IEI,
buffer + encoded, len - encoded)) < 0)
// Return in case of error
return encode_result;
else
encoded += encode_result;
}
if ((tracking_area_update_accept->presencemask & TRACKING_AREA_UPDATE_ACCEPT_MS_IDENTITY_PRESENT)
== TRACKING_AREA_UPDATE_ACCEPT_MS_IDENTITY_PRESENT) {
if ((encode_result =
encode_mobile_identity(&tracking_area_update_accept->msidentity,
TRACKING_AREA_UPDATE_ACCEPT_MS_IDENTITY_IEI, buffer + encoded, len
- encoded)) < 0)
// Return in case of error
return encode_result;
else
encoded += encode_result;
}
if ((tracking_area_update_accept->presencemask & TRACKING_AREA_UPDATE_ACCEPT_EMM_CAUSE_PRESENT)
== TRACKING_AREA_UPDATE_ACCEPT_EMM_CAUSE_PRESENT) {
if ((encode_result =
encode_emm_cause(&tracking_area_update_accept->emmcause,
TRACKING_AREA_UPDATE_ACCEPT_EMM_CAUSE_IEI, buffer + encoded, len -
encoded)) < 0)
// Return in case of error
return encode_result;
else
encoded += encode_result;
}
if ((tracking_area_update_accept->presencemask & TRACKING_AREA_UPDATE_ACCEPT_T3402_VALUE_PRESENT)
== TRACKING_AREA_UPDATE_ACCEPT_T3402_VALUE_PRESENT) {
if ((encode_result =
encode_gprs_timer(&tracking_area_update_accept->t3402value,
TRACKING_AREA_UPDATE_ACCEPT_T3402_VALUE_IEI, buffer + encoded, len
- encoded)) < 0)
// Return in case of error
return encode_result;
else
encoded += encode_result;
}
if ((tracking_area_update_accept->presencemask & TRACKING_AREA_UPDATE_ACCEPT_T3423_VALUE_PRESENT)
== TRACKING_AREA_UPDATE_ACCEPT_T3423_VALUE_PRESENT) {
if ((encode_result =
encode_gprs_timer(&tracking_area_update_accept->t3423value,
TRACKING_AREA_UPDATE_ACCEPT_T3423_VALUE_IEI, buffer + encoded, len
- encoded)) < 0)
// Return in case of error
return encode_result;
else
encoded += encode_result;
}
if ((tracking_area_update_accept->presencemask & TRACKING_AREA_UPDATE_ACCEPT_EQUIVALENT_PLMNS_PRESENT)
== TRACKING_AREA_UPDATE_ACCEPT_EQUIVALENT_PLMNS_PRESENT) {
if ((encode_result =
encode_plmn_list(&tracking_area_update_accept->equivalentplmns,
TRACKING_AREA_UPDATE_ACCEPT_EQUIVALENT_PLMNS_IEI, buffer +
encoded, len - encoded)) < 0)
// Return in case of error
return encode_result;
else
encoded += encode_result;
}
if ((tracking_area_update_accept->presencemask & TRACKING_AREA_UPDATE_ACCEPT_EMERGENCY_NUMBER_LIST_PRESENT)
== TRACKING_AREA_UPDATE_ACCEPT_EMERGENCY_NUMBER_LIST_PRESENT) {
if ((encode_result =
encode_emergency_number_list(&tracking_area_update_accept->emergencynumberlist,
TRACKING_AREA_UPDATE_ACCEPT_EMERGENCY_NUMBER_LIST_IEI, buffer +
encoded, len - encoded)) < 0)
// Return in case of error
return encode_result;
else
encoded += encode_result;
}
if ((tracking_area_update_accept->presencemask & TRACKING_AREA_UPDATE_ACCEPT_EPS_NETWORK_FEATURE_SUPPORT_PRESENT)
== TRACKING_AREA_UPDATE_ACCEPT_EPS_NETWORK_FEATURE_SUPPORT_PRESENT) {
if ((encode_result =
encode_eps_network_feature_support(&tracking_area_update_accept->epsnetworkfeaturesupport,
TRACKING_AREA_UPDATE_ACCEPT_EPS_NETWORK_FEATURE_SUPPORT_IEI,
buffer + encoded, len - encoded)) < 0)
// Return in case of error
return encode_result;
else
encoded += encode_result;
}
if ((tracking_area_update_accept->presencemask & TRACKING_AREA_UPDATE_ACCEPT_ADDITIONAL_UPDATE_RESULT_PRESENT)
== TRACKING_AREA_UPDATE_ACCEPT_ADDITIONAL_UPDATE_RESULT_PRESENT) {
if ((encode_result =
encode_additional_update_result(&tracking_area_update_accept->additionalupdateresult,
TRACKING_AREA_UPDATE_ACCEPT_ADDITIONAL_UPDATE_RESULT_IEI, buffer +
encoded, len - encoded)) < 0)
// Return in case of error
return encode_result;
else
encoded += encode_result;
}
return encoded;
}
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