FreeCalypso > hg > fc-sim-tools

annotate utils/fcsim1-mkprov.c @ 93:6041c601304d

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fcsim1-mkprov: revert OTA key addition It appears that GrcardSIM2 cards (which is what we got for FCSIM1) do not support OTA after all, contrary to what we were previously led to believe by some tech support emails from Grcard - apparently those support emails and OTA descriptions referred to some other card model(s).
author Mychaela Falconia <falcon@freecalypso.org>
date Wed, 21 Apr 2021 05:38:39 +0000
parents 28fae57b3e29
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
35
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1 /*
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2 * This utility is the provisioning data generator for FCSIM1 cards.
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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 <sys/file.h>
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7 #include <stdio.h>
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8 #include <stdlib.h>
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9 #include <unistd.h>
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10
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11 static u_char iccid_bin[19], imsi_bin[15], msisdn_bin[20];
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12 static int msisdn_set, msisdn_plus;
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13 static unsigned num_cards = 1, access_class, msisdn_digits;
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14 static char *random_file = "/dev/urandom";
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15 static int random_fd;
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16
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17 static void
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18 set_iccid(arg)
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19 char *arg;
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20 {
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21 int rc;
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22
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23 rc = parse_decimal_shorthand(arg, iccid_bin, 18);
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24 if (rc < 0)
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25 exit(1); /* error msg already printed */
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26 }
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27
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28 static void
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29 set_imsi(arg)
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30 char *arg;
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31 {
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32 int rc;
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33
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34 rc = parse_decimal_shorthand(arg, imsi_bin, 15);
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35 if (rc < 0)
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36 exit(1); /* error msg already printed */
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37 }
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38
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39 static void
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40 set_msisdn(arg)
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41 char *arg;
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42 {
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43 int rc;
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44
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45 if (*arg == '+') {
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46 msisdn_plus = 1;
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47 arg++;
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48 }
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49 rc = parse_decimal_string_arg(arg, msisdn_bin, 20);
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50 if (rc < 0)
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51 exit(1); /* error msg already printed */
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52 msisdn_digits = rc;
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53 msisdn_set = 1;
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54 }
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55
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56 static void
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57 parse_cmdline(argc, argv)
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58 char **argv;
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59 {
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60 extern int optind;
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61 extern char *optarg;
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62 int c;
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63
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64 while ((c = getopt(argc, argv, "a:m:n:r:")) != EOF) {
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65 switch (c) {
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66 case 'a':
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67 if (optarg[0] < '0' || optarg[0] > '9' || optarg[1]) {
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68 fprintf(stderr, "error: invalid -a argument\n");
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69 exit(1);
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70 }
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71 access_class = optarg[0] - '0';
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72 continue;
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73 case 'm':
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74 set_msisdn(optarg);
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75 continue;
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76 case 'n':
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77 num_cards = atoi(optarg);
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78 continue;
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79 case 'r':
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80 random_file = optarg;
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81 continue;
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82 case '?':
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83 default:
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84 usage: fprintf(stderr,
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85 "usage: %s [options] start-iccid start-imsi\n",
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86 argv[0]);
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87 exit(1);
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88 }
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89 }
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90 if (argc - optind != 2)
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91 goto usage;
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92 set_iccid(argv[optind]);
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93 set_imsi(argv[optind+1]);
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94 }
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95
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96 static void
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97 get_random_ki(strbuf)
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98 char *strbuf;
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99 {
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100 u_char bin[16];
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101 char *dp;
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102 unsigned n;
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103 int rc;
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104
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105 rc = read(random_fd, bin, 16);
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106 if (rc != 16) {
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107 fprintf(stderr, "error reading from %s\n", random_file);
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108 exit(1);
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109 }
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110 dp = strbuf;
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111 for (n = 0; n < 16; n++) {
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112 sprintf(dp, "%02X", bin[n]);
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113 dp += 2;
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114 }
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115 *dp = '\0';
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116 }
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117
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118 static void
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119 make_one_card()
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120 {
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121 unsigned acc_mask;
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122 char iccid_str[20], imsi_str[16], ki_str[33];
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123 char msisdn_str[21];
35
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124
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125 nibbles_to_ascii(iccid_bin, 19, iccid_str);
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126 nibbles_to_ascii(imsi_bin, 15, imsi_str);
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127 acc_mask = 1 << access_class;
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128 get_random_ki(ki_str);
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129 printf("ICCID=%s IMSI=%s ACC=%04X Ki=%s", iccid_str, imsi_str,
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130 acc_mask, ki_str);
35
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131 if (msisdn_set) {
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132 fputs(" MSISDN=", stdout);
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133 if (msisdn_plus)
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134 putchar('+');
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135 nibbles_to_ascii(msisdn_bin, msisdn_digits, msisdn_str);
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136 fputs(msisdn_str, stdout);
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137 }
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138 putchar('\n');
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139 }
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140
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141 main(argc, argv)
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142 char **argv;
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143 {
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144 unsigned n;
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145
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146 parse_cmdline(argc, argv);
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147 random_fd = open(random_file, O_RDONLY);
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148 if (random_fd < 0) {
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149 perror(random_file);
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150 exit(1);
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151 }
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152 for (n = 0; n < num_cards; n++) {
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153 iccid_bin[18] = compute_iccid_luhn(iccid_bin);
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154 make_one_card();
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155 decimal_string_increment(iccid_bin, 18);
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Mychaela Falconia <falcon@freecalypso.org>
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156 decimal_string_increment(imsi_bin, 15);
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Mychaela Falconia <falcon@freecalypso.org>
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157 if (msisdn_set)
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158 decimal_string_increment(msisdn_bin, msisdn_digits);
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159 access_class++;
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160 if (access_class >= 10)
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161 access_class = 0;
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162 }
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163 exit(0);
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164 }