FreeCalypso > hg > freecalypso-tools
annotate rvinterf/etmsync/pirimei.c @ 819:7b24c192a1e1
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author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sat, 15 May 2021 03:15:03 +0000 |
parents | 3d148edb87c2 |
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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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4 |
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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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12 |
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13 u_char pirelli_imeisv[8]; |
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14 |
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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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21 |
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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 } |