FreeCalypso > hg > fc-sim-tools

annotate utils/fcsim1-mkprov.c @ 63:f4eb486aab40

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doc/Admin-write-commands: fix verify-hex command name
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 23 Mar 2021 23:29:31 +0000
parents 38c14fa89937
children 28fae57b3e29
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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
36
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105 rc = read(random_fd, bin, 16);
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106 if (rc != 16) {
35
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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];
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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);
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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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156 decimal_string_increment(imsi_bin, 15);
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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 }