122 lines
5.0 KiB
C
122 lines
5.0 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 <stdint.h>
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#include "TLVEncoder.h"
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#include "TLVDecoder.h"
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#include "EmergencyNumberList.h"
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int decode_emergency_number_list(EmergencyNumberList *emergencynumberlist, 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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ielen = *(buffer + decoded);
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decoded++;
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CHECK_LENGTH_DECODER(len - decoded, ielen);
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int information_element_index = 0;
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while ((decoded < ielen) && (information_element_index < EMERGENCY_NUMBER_LIST_MAX_NUMBER_INFORMATION)) {
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emergencynumberlist->emergency_number_information[information_element_index].lengthofemergency = *(buffer + decoded);
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decoded++;
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emergencynumberlist->emergency_number_information[information_element_index].emergencyservicecategoryvalue = *(buffer + decoded) & 0x1f;
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decoded++;
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int remaining_len = emergencynumberlist->emergency_number_information[information_element_index].lengthofemergency - 1;
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int digit_index = 0;
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while (remaining_len > 0) {
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emergencynumberlist->emergency_number_information[information_element_index].bcd_digits[digit_index++] = *(buffer + decoded);
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decoded++;
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remaining_len --;
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}
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while (digit_index < EMERGENCY_NUMBER_LIST_MAX_2DIGITS) {
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emergencynumberlist->emergency_number_information[information_element_index].bcd_digits[digit_index++] = 0xFF;
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}
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information_element_index++;
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}
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#if defined (NAS_DEBUG)
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dump_emergency_number_list_xml(emergencynumberlist, iei);
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#endif
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return decoded;
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}
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int encode_emergency_number_list(EmergencyNumberList *emergencynumberlist, 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, EMERGENCY_NUMBER_LIST_MINIMUM_LENGTH, len);
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#if defined (NAS_DEBUG)
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dump_emergency_number_list_xml(emergencynumberlist, 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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for ( int ie_index = 0; ie_index < emergencynumberlist->num_emergency_elements; ie_index++) {
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*(buffer + encoded) = emergencynumberlist->emergency_number_information[ie_index].lengthofemergency;
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encoded++;
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*(buffer + encoded) = 0x00 |
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(emergencynumberlist->emergency_number_information[ie_index].emergencyservicecategoryvalue & 0x1f);
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encoded++;
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for (int bcd2_index = 0; bcd2_index < (emergencynumberlist->emergency_number_information[ie_index].lengthofemergency - 1); bcd2_index++) {
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*(buffer + encoded) = emergencynumberlist->emergency_number_information[ie_index].bcd_digits[bcd2_index];
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}
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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_emergency_number_list_xml(EmergencyNumberList *emergencynumberlist, uint8_t iei)
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{
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printf("<Emergency Number List>\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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for ( int ie_index = 0; ie_index < emergencynumberlist->num_emergency_elements; ie_index++) {
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printf(" <Length of emergency>%u</Length of emergency>\n", emergencynumberlist->emergency_number_information[ie_index].lengthofemergency);
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printf(" <Emergency service category value>%u</Emergency service category value>\n", emergencynumberlist->emergency_number_information[ie_index].emergencyservicecategoryvalue);
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for (int bcd2_index = 0; bcd2_index < (emergencynumberlist->emergency_number_information[ie_index].lengthofemergency - 1); bcd2_index++) {
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uint8_t bcd1 = emergencynumberlist->emergency_number_information[ie_index].bcd_digits[bcd2_index] & 0x0f;
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uint8_t bcd2 = (emergencynumberlist->emergency_number_information[ie_index].bcd_digits[bcd2_index] & 0xf0) >> 4;
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if (bcd1 < 10) {
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printf(" <BCD Digit%u>%u</BCD Digit%u>\n", (bcd2_index*2)+1, bcd1, (bcd2_index*2)+1);
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if (bcd2 < 10) {
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printf(" <BCD Digit%u>%u</BCD Digit%u>\n", (bcd2_index*2)+2, bcd2, (bcd2_index*2)+2);
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}
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}
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}
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}
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printf("</Emergency Number List>\n");
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}
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