80 lines
2.4 KiB
C
80 lines
2.4 KiB
C
#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 "PlmnList.h"
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int decode_plmn_list(PlmnList *plmnlist, 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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{
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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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plmnlist->mccdigit2 = (*(buffer + decoded) >> 4) & 0xf;
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plmnlist->mccdigit1 = *(buffer + decoded) & 0xf;
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decoded++;
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plmnlist->mncdigit3 = (*(buffer + decoded) >> 4) & 0xf;
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plmnlist->mccdigit3 = *(buffer + decoded) & 0xf;
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decoded++;
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plmnlist->mncdigit2 = (*(buffer + decoded) >> 4) & 0xf;
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plmnlist->mncdigit1 = *(buffer + decoded) & 0xf;
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decoded++;
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#if defined (NAS_DEBUG)
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dump_plmn_list_xml(plmnlist, iei);
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#endif
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return decoded;
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}
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int encode_plmn_list(PlmnList *plmnlist, 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, PLMN_LIST_MINIMUM_LENGTH, len);
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#if defined (NAS_DEBUG)
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dump_plmn_list_xml(plmnlist, iei);
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#endif
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if (iei > 0)
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{
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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) = 0x00 | ((plmnlist->mccdigit2 & 0xf) << 4) |
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(plmnlist->mccdigit1 & 0xf);
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encoded++;
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*(buffer + encoded) = 0x00 | ((plmnlist->mncdigit3 & 0xf) << 4) |
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(plmnlist->mccdigit3 & 0xf);
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encoded++;
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*(buffer + encoded) = 0x00 | ((plmnlist->mncdigit2 & 0xf) << 4) |
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(plmnlist->mncdigit1 & 0xf);
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encoded++;
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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_plmn_list_xml(PlmnList *plmnlist, uint8_t iei)
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{
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printf("<Plmn 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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printf(" <MCC digit 2>%u</MCC digit 2>\n", plmnlist->mccdigit2);
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printf(" <MCC digit 1>%u</MCC digit 1>\n", plmnlist->mccdigit1);
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printf(" <MNC digit 3>%u</MNC digit 3>\n", plmnlist->mncdigit3);
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printf(" <MCC digit 3>%u</MCC digit 3>\n", plmnlist->mccdigit3);
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printf(" <MNC digit 2>%u</MNC digit 2>\n", plmnlist->mncdigit2);
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printf(" <MNC digit 1>%u</MNC digit 1>\n", plmnlist->mncdigit1);
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printf("</Plmn List>\n");
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}
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