FreeCalypso > hg > freecalypso-tools

annotate rvinterf/etmsync/pirimei.c @ 620:dd162a4cb9fa

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CHANGES: objective performance comparison instead of blind patch
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 27 Feb 2020 01:21:58 +0000
parents 3d148edb87c2
children 6d9b10633f10
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1 /*
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2 * Reading and decryption of Pirelli's factory IMEI record
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3 */
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5 #include <sys/types.h>
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6 #include <stdio.h>
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7 #include <stdlib.h>
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8 #include <string.h>
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9 #include <strings.h>
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10 #include "cl_des.h"
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11 #include "exitcodes.h"
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13 u_char pirelli_imeisv[8];
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15 get_pirelli_imei()
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16 {
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17 u_char ciphertext[2][8], dieid_key[8], decrypted[2][8];
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18 int rc;
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19 static char failmsg[] =
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20 "decryption failed: no valid IMEI record or incompatible firmware\n";
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22 printf("Requesting Calypso die ID\n");
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23 rc = do_dieid_read(dieid_key);
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24 if (rc)
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25 return(rc);
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26 printf("Reading IMEI record in Pirelli's factory data block\n");
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27 rc = do_memory_read(0x027F0504, ciphertext, 16);
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28 if (rc)
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29 return(rc);
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30 cl_des(ciphertext[0], dieid_key, decrypted[0], CL_DES_DECRYPTION);
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31 cl_des(ciphertext[1], dieid_key, decrypted[1], CL_DES_DECRYPTION);
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32 if (bcmp(decrypted[1], dieid_key, 8)) {
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33 printf(failmsg);
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34 return(ERROR_TARGET);
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35 }
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36 bcopy(decrypted[0], pirelli_imeisv, 8);
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37 printf("Factory IMEISV is %02X%02X%02X%02X-%02X%02X%02X-%02X\n",
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38 pirelli_imeisv[0], pirelli_imeisv[1], pirelli_imeisv[2],
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39 pirelli_imeisv[3], pirelli_imeisv[4], pirelli_imeisv[5],
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40 pirelli_imeisv[6], pirelli_imeisv[7]);
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41 return(0);
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42 }