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annotate simtool/select.c @ 79:b0982c0cf54d

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EF select logic: detect invalid record count > 255
author Mychaela Falconia <falcon@freecalypso.org>
date Wed, 17 Feb 2021 05:21:34 +0000
parents 2071b28cd0c7
children be1a759453ef
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1
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1 #include <sys/types.h>
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2 #include <ctype.h>
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3 #include <string.h>
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4 #include <strings.h>
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5 #include <stdio.h>
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6 #include <stdlib.h>
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7 #include "simresp.h"
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8 #include "curfile.h"
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9
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10 select_op(file_id)
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11 unsigned file_id;
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12 {
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13 u_char cmd[7];
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14 int rc;
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15 unsigned expect_resp_len;
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16
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17 /* SELECT command APDU */
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18 cmd[0] = 0xA0;
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19 cmd[1] = 0xA4;
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20 cmd[2] = 0;
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21 cmd[3] = 0;
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22 cmd[4] = 2;
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23 cmd[5] = file_id >> 8;
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24 cmd[6] = file_id;
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25 rc = apdu_exchange(cmd, 7);
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26 if (rc < 0)
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27 return(rc);
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28 if ((sim_resp_sw & 0xFF00) != 0x9F00) {
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29 fprintf(stderr,
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30 "error or unexpected SW response to SELECT of 0x%04X: %04X\n",
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31 file_id, sim_resp_sw);
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32 return(-1);
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33 }
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34 expect_resp_len = sim_resp_sw & 0xFF;
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35 /* GET RESPONSE follow-up */
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36 cmd[1] = 0xC0;
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37 cmd[4] = expect_resp_len;
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38 rc = apdu_exchange(cmd, 5);
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39 if (rc < 0)
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40 return(rc);
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41 if (sim_resp_sw != 0x9000) {
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42 fprintf(stderr,
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43 "bad SW resp to GET RESPONSE after SELECT: %04X\n",
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44 sim_resp_sw);
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45 return(-1);
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46 }
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47 if (sim_resp_data_len != expect_resp_len) {
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48 fprintf(stderr,
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49 "error: GET RESPONSE after SELECT returned %u bytes, expected %u\n",
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50 sim_resp_data_len, expect_resp_len);
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51 return(-1);
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52 }
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53 return(0);
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54 }
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55
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56 static void
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57 show_secret_code_status(name, byte)
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58 char *name;
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59 unsigned byte;
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60 {
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61 printf("Status of %s: %s, %u attempts left\n", name,
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62 byte & 0x80 ? "initialized" : "not initialized",
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63 byte & 0x0F);
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64 }
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65
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66 void
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67 show_access_conditions(oper_name, cond_code)
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68 char *oper_name;
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69 unsigned cond_code;
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70 {
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71 static char *cond_names[16] =
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72 {"ALW", "CHV1", "CHV2", "RFU3",
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73 "ADM4", "ADM5", "ADM6", "ADM7",
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74 "ADM8", "ADM9", "ADM10", "ADM11",
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75 "ADM12", "ADM13", "ADM14", "NEV"};
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76
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77 printf("Access condition for %s: %s\n", oper_name,
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78 cond_names[cond_code]);
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79 }
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80
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81 cmd_select(argc, argv)
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82 char **argv;
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83 {
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84 int file_id, rc;
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85
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86 if (isxdigit(argv[1][0]) && isxdigit(argv[1][1]) &&
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87 isxdigit(argv[1][2]) && isxdigit(argv[1][3]) && !argv[1][4])
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88 file_id = strtoul(argv[1], 0, 16);
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89 else
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90 file_id = find_symbolic_file_name(argv[1]);
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91 if (file_id < 0) {
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92 fprintf(stderr,
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93 "error: file ID argument is not a hex value or a recognized symbolic name\n");
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94 return(-1);
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95 }
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96 rc = select_op(file_id);
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97 if (rc < 0)
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98 return(rc);
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99 if (sim_resp_data_len < 14) {
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100 fprintf(stderr,
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101 "error: response length of %u bytes is too short for any file type\n",
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102 sim_resp_data_len);
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103 return(-1);
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104 }
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105 switch (sim_resp_data[6]) {
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106 case 0x01:
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107 printf("File type: MF\n");
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108 goto mf_or_df;
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109 case 0x02:
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110 printf("File type: DF\n");
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111 mf_or_df:
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112 if (sim_resp_data_len < 22) {
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113 fprintf(stderr,
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114 "error: response length of %u bytes is too short for MF/DF\n",
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115 sim_resp_data_len);
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116 return(-1);
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117 }
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118 printf("File characteristics: %02X\n", sim_resp_data[13]);
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119 printf("Number of DF children: %u\n", sim_resp_data[14]);
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120 printf("Number of EF children: %u\n", sim_resp_data[15]);
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121 printf("Number of secret codes: %u\n", sim_resp_data[16]);
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122 show_secret_code_status("PIN1", sim_resp_data[18]);
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123 show_secret_code_status("PUK1", sim_resp_data[19]);
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124 show_secret_code_status("PIN2", sim_resp_data[20]);
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125 show_secret_code_status("PUK2", sim_resp_data[21]);
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126 break;
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127 case 0x04:
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128 printf("File type: EF\n");
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129 curfile_total_size = (sim_resp_data[2] << 8) | sim_resp_data[3];
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130 printf("File size: %u\n", curfile_total_size);
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131 curfile_structure = sim_resp_data[13];
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132 switch (curfile_structure) {
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133 case 0x00:
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134 printf("Structure: transparent\n");
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135 break;
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136 case 0x01:
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137 printf("Structure: linear fixed\n");
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138 goto ef_record_based;
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parents:
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139 case 0x03:
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
140 printf("Structure: cyclic\n");
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
141 ef_record_based:
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
142 if (sim_resp_data_len < 15) {
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
143 fprintf(stderr,
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
144 "error: response length of %u bytes is too short for record-based EF\n",
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
145 sim_resp_data_len);
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
146 return(-1);
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
147 }
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
148 printf("Record length: %u\n", sim_resp_data[14]);
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
149 curfile_record_len = sim_resp_data[14];
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
150 if (curfile_record_len &&
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
151 curfile_total_size % curfile_record_len == 0) {
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
152 curfile_record_count =
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
153 curfile_total_size / curfile_record_len;
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
154 printf("Number of records: %u\n",
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
155 curfile_record_count);
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
156 } else
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
157 curfile_record_count = 0;
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
158 break;
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
159 default:
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
160 printf("Structure: %02X (unknown)\n",
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
161 curfile_structure);
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
162 }
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
163 printf("File status: %02X\n", sim_resp_data[11]);
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
164 show_access_conditions("UPDATE", sim_resp_data[8] & 0xF);
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
165 show_access_conditions("READ & SEEK", sim_resp_data[8] >> 4);
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
166 show_access_conditions("INCREASE", sim_resp_data[9] >> 4);
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
167 show_access_conditions("INVALIDATE", sim_resp_data[10] & 0xF);
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
168 show_access_conditions("REHABILITATE", sim_resp_data[10] >> 4);
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
169 break;
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
170 default:
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
171 printf("File type: %02X (unknown)\n", sim_resp_data[6]);
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
172 }
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
173 return(0);
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
174 }
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
175
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
176 parse_ef_select_response()
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
177 {
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
178 if (sim_resp_data_len < 14) {
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
179 fprintf(stderr,
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
180 "error: SELECT response length of %u bytes is too short\n",
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
181 sim_resp_data_len);
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
182 return(-1);
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
183 }
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
184 if (sim_resp_data[6] != 0x04) {
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
185 fprintf(stderr, "error: selected file is not an EF\n");
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
186 return(-1);
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
187 }
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
188 curfile_total_size = (sim_resp_data[2] << 8) | sim_resp_data[3];
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
189 curfile_structure = sim_resp_data[13];
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
190 switch (curfile_structure) {
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
191 case 0x00:
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
192 /* transparent */
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
193 break;
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
194 case 0x01:
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
195 case 0x03:
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
196 /* record-based */
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
197 if (sim_resp_data_len < 15) {
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
198 fprintf(stderr,
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
199 "error: SELECT response length of %u bytes is too short for record-based EF\n",
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
200 sim_resp_data_len);
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
201 return(-1);
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
202 }
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
203 curfile_record_len = sim_resp_data[14];
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
204 if (!curfile_record_len) {
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
205 fprintf(stderr,
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
206 "error: SELECT response indicates record length of 0\n");
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
207 return(-1);
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
208 }
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
209 if (curfile_total_size % curfile_record_len) {
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
210 fprintf(stderr,
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
211 "error: returned file size is not divisible by record length\n");
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
212 return(-1);
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
213 }
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
214 curfile_record_count = curfile_total_size / curfile_record_len;
79
b0982c0cf54d EF select logic: detect invalid record count > 255
Mychaela Falconia <falcon@freecalypso.org>
parents: 1
diff changeset
215 if (curfile_record_count > 255) {
b0982c0cf54d EF select logic: detect invalid record count > 255
Mychaela Falconia <falcon@freecalypso.org>
parents: 1
diff changeset
216 fprintf(stderr,
b0982c0cf54d EF select logic: detect invalid record count > 255
Mychaela Falconia <falcon@freecalypso.org>
parents: 1
diff changeset
217 "error: EF record count exceeds protocol limit\n");
b0982c0cf54d EF select logic: detect invalid record count > 255
Mychaela Falconia <falcon@freecalypso.org>
parents: 1
diff changeset
218 return(-1);
b0982c0cf54d EF select logic: detect invalid record count > 255
Mychaela Falconia <falcon@freecalypso.org>
parents: 1
diff changeset
219 }
1
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
220 break;
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
221 default:
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
222 fprintf(stderr, "error: unknown EF structure code %02X\n",
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
223 curfile_structure);
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
224 return(-1);
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
225 }
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
226 return(0);
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
227 }