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annotate simtool/hlread.c @ 1:2071b28cd0c7

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simtool: first refactored version
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 11 Feb 2021 23:04:28 +0000
parents
children 4360a7906f34
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1
2071b28cd0c7 simtool: first refactored version
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1 /*
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2 * This module implements some high-level or user-friendly read commands.
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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 "simresp.h"
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9 #include "curfile.h"
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10 #include "file_id.h"
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11
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12 encode_hex_digit(d)
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13 unsigned d;
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14 {
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15 if (d <= 9)
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16 return(d + '0');
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17 else
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18 return(d - 10 + 'A');
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19 }
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20
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21 decode_reversed_nibbles(bytes, nbytes, dest)
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22 u_char *bytes;
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23 unsigned nbytes;
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24 char *dest;
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25 {
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26 u_char *sp;
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27 char *dp;
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28 unsigned n, c;
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29
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30 sp = bytes;
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31 dp = dest;
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32 for (n = 0; n < nbytes; n++) {
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33 c = *sp & 0xF;
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34 *dp++ = encode_hex_digit(c);
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35 c = *sp >> 4;
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36 *dp++ = encode_hex_digit(c);
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37 sp++;
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38 }
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39 }
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40
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41 cmd_iccid()
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42 {
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43 int rc;
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44 char buf[21];
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45
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46 rc = select_op(FILEID_MF);
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47 if (rc < 0)
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48 return(rc);
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49 rc = select_op(EF_ICCID);
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50 if (rc < 0)
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51 return(rc);
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52 rc = parse_ef_select_response();
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53 if (rc < 0)
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54 return(rc);
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55 if (curfile_structure != 0x00 || curfile_total_size != 10) {
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56 fprintf(stderr, "error: expected transparent EF of 10 bytes\n");
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57 return(-1);
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58 }
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59 rc = readbin_op(0, 10);
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60 if (rc < 0)
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61 return(rc);
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62 decode_reversed_nibbles(sim_resp_data, 10, buf);
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63 buf[20] = '\0';
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64 printf("%s\n", buf);
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65 return(0);
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66 }
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67
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68 cmd_imsi()
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69 {
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70 int rc;
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71 char buf[17];
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72
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73 rc = select_op(DF_GSM);
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74 if (rc < 0)
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75 return(rc);
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76 rc = select_op(EF_IMSI);
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77 if (rc < 0)
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78 return(rc);
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79 rc = parse_ef_select_response();
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80 if (rc < 0)
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81 return(rc);
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82 if (curfile_structure != 0x00 || curfile_total_size != 9) {
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83 fprintf(stderr, "error: expected transparent EF of 9 bytes\n");
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84 return(-1);
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85 }
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86 rc = readbin_op(0, 9);
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87 if (rc < 0)
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88 return(rc);
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89 decode_reversed_nibbles(sim_resp_data + 1, 8, buf);
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90 buf[16] = '\0';
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91 printf("%s parity=%c len=%u\n", buf + 1, buf[0], sim_resp_data[0]);
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92 return(0);
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93 }
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94
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95 cmd_spn()
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96 {
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97 int rc;
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98 unsigned textlen;
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99
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100 rc = select_op(DF_GSM);
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101 if (rc < 0)
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102 return(rc);
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103 rc = select_op(EF_SPN);
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104 if (rc < 0)
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105 return(rc);
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106 rc = parse_ef_select_response();
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107 if (rc < 0)
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108 return(rc);
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109 if (curfile_structure != 0x00 || curfile_total_size != 17) {
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110 fprintf(stderr, "error: expected transparent EF of 17 bytes\n");
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111 return(-1);
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112 }
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113 rc = readbin_op(0, 17);
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114 if (rc < 0)
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115 return(rc);
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116 printf("Display condition: %02X\n", sim_resp_data[0]);
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117 printf("SPN: ");
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118 rc = validate_alpha_field(sim_resp_data + 1, 16, &textlen);
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119 if (rc >= 0)
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120 print_alpha_field(sim_resp_data, textlen, stdout);
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121 else
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122 printf("malformed alpha field");
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123 putchar('\n');
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124 return(0);
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125 }