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annotate simtool/sysmo.c @ 74:8562d8508cf2

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grcard2-set-{adm,super}-hex commands implemented It appears that GrcardSIM2 cards allow arbitrary 64-bit keys for ADM and SUPER ADM, not necessarily consisting of ASCII digits like the specs require for standard PIN and PUK, and pySim-prog.py in fact sets the ADM key to 4444444444444444 in hex by default, which is not an ASCII digit string. If the cards allow such keys, we need to support them too.
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 16 Feb 2021 04:10:36 +0000
parents 2071b28cd0c7
children c0cd0d4635bb
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1
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1 /*
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2 * This module implements special commands for programmable and
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3 * semi-programmable (made-up term for the version without ADM keys)
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4 * SIM cards made by Sysmocom.
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5 */
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6
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7 #include <sys/types.h>
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8 #include <string.h>
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9 #include <strings.h>
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10 #include <stdio.h>
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11 #include <stdlib.h>
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12 #include "simresp.h"
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13 #include "curfile.h"
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14 #include "file_id.h"
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15
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16 cmd_fix_sysmo_msisdn()
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17 {
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18 int rc;
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19 unsigned n;
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20 u_char newrec[34];
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21
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22 rc = select_op(DF_TELECOM);
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23 if (rc < 0)
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24 return(rc);
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25 rc = select_op(EF_MSISDN);
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26 if (rc < 0)
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27 return(rc);
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28 rc = parse_ef_select_response();
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29 if (rc < 0)
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30 return(rc);
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31 if (curfile_structure != 0x01) {
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32 fprintf(stderr, "error: EF_MSISDN is not linear fixed\n");
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33 return(-1);
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34 }
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35 if (curfile_record_len != 34) {
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36 fprintf(stderr,
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37 "error: expected EF_MSISDN record length of 34 bytes, got %u\n",
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38 curfile_record_len);
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39 return(-1);
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40 }
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41 rc = readrec_op(1, 0x04, 34);
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42 if (rc < 0)
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43 return(rc);
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44 for (n = 0; n < 18; n++) {
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45 if (sim_resp_data[n] != 0xFF) {
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46 fprintf(stderr,
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47 "error: non-FF data in the first 18 bytes of alpha tag area\n");
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48 return(-1);
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49 }
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50 }
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51 if (sim_resp_data[18] == 0xFF && sim_resp_data[19] == 0xFF) {
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52 printf(
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53 "last 2 bytes of alpha tag area are clear - already fixed?\n");
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54 return(0);
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55 }
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56 if (sim_resp_data[18] != 0x07 || sim_resp_data[19] != 0x91) {
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57 fprintf(stderr,
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58 "error: bytes 18 & 19 don't match expected bogus programming\n");
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59 return(-1);
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60 }
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61 memset(newrec, 0xFF, 34);
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62 memcpy(newrec + 20, sim_resp_data + 18, 8);
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63 return update_rec_op(1, 0x04, newrec, 34);
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64 }