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annotate simtool/sstprog.c @ 64:dba24129027e

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doc/ADM-PIN-numbering article written
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 23 Mar 2021 23:30:00 +0000
parents ddd767f6e15b
children
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10
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1 /*
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2 * This module implements the write-sst command for admin-level
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3 * programming of SIM cards.
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4 */
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5
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6 #include <sys/types.h>
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7 #include <ctype.h>
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8 #include <stdio.h>
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9 #include <stdlib.h>
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10 #include <string.h>
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11 #include <strings.h>
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12 #include "curfile.h"
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13 #include "file_id.h"
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14
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15 extern FILE *open_script_input_file();
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16
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17 cmd_write_sst(argc, argv)
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18 char **argv;
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19 {
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20 u_char sst[255];
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21 FILE *inf;
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22 int lineno, rc;
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23 char linebuf[1024], *cp, *np;
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24 unsigned num, code, max_serv;
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25
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26 rc = select_op(DF_GSM);
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27 if (rc < 0)
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28 return(rc);
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29 rc = select_op(EF_SST);
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30 if (rc < 0)
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31 return(rc);
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32 rc = parse_ef_select_response();
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33 if (rc < 0)
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34 return(rc);
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35 if (curfile_structure != 0x00) {
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36 fprintf(stderr, "error: EF_SST is not transparent\n");
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37 return(-1);
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38 }
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39 if (curfile_total_size < 2) {
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40 fprintf(stderr,
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41 "error: EF_SST is shorter than spec minimum of 2 bytes\n");
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42 return(-1);
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43 }
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44 if (curfile_total_size > 255) {
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45 fprintf(stderr,
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46 "error: EF_SST is longer than our 255 byte limit\n");
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47 return(-1);
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48 }
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49 memset(sst, 0, curfile_total_size);
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50 max_serv = curfile_total_size * 4;
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51 inf = open_script_input_file(argv[1]);
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52 if (!inf) {
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53 perror(argv[1]);
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54 return(-1);
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55 }
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56 for (lineno = 1; fgets(linebuf, sizeof linebuf, inf); lineno++) {
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57 if (!index(linebuf, '\n')) {
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58 fprintf(stderr,
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59 "%s line %d: too long or missing newline\n",
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60 argv[1], lineno);
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61 fclose(inf);
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62 return(-1);
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63 }
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64 for (cp = linebuf; ; ) {
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65 while (isspace(*cp))
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66 cp++;
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67 if (*cp == '\0' || *cp == '#')
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68 break;
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69 if (!isdigit(*cp)) {
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70 inv_syntax: fprintf(stderr, "%s line %d: invalid syntax\n",
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71 argv[1], lineno);
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72 fclose(inf);
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73 return(-1);
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74 }
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75 num = strtoul(cp, 0, 10);
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76 while (isdigit(*cp))
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77 cp++;
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78 if (*cp == '^') {
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79 cp++;
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80 code = 1;
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81 } else
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82 code = 3;
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83 if (*cp && !isspace(*cp))
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84 goto inv_syntax;
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85 if (num < 1 || num > max_serv) {
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86 fprintf(stderr,
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87 "%s line %d: service number is out of range\n",
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88 argv[1], lineno);
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89 fclose(inf);
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90 return(-1);
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91 }
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92 num--;
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93 sst[num >> 2] |= code << ((num & 3) << 1);
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94 }
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95 }
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96 fclose(inf);
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97 return update_bin_op(0, sst, curfile_total_size);
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98 }