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