1 | /*
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2 | protocol_t0.c
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3 | Handling of ISO 7816 T=0 protocol
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4 |
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5 | This file is part of the Unix driver for Towitoko smartcard readers
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6 | Copyright (C) 2000 Carlos Prados <cprados@yahoo.com>
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7 |
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8 | This version is modified by doz21 to work in a special manner ;)
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9 |
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10 | This library is free software; you can redistribute it and/or
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11 | modify it under the terms of the GNU Lesser General Public
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12 | License as published by the Free Software Foundation; either
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13 | version 2 of the License, or (at your option) any later version.
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14 |
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15 | This library is distributed in the hope that it will be useful,
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16 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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18 | Lesser General Public License for more details.
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19 |
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20 | You should have received a copy of the GNU Lesser General Public
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21 | License along with this library; if not, write to the Free Software
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22 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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23 | */
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24 |
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25 | #include "../globals.h"
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26 |
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27 | #ifdef WITH_CARDREADER
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28 | #include "../oscam-time.h"
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29 | #include "icc_async.h"
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30 | #include "protocol_t0.h"
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31 | /*
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32 | * Not exported constants definition
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33 | */
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34 |
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35 | #define OK 0
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36 | #define ERROR 1
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37 |
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38 | #define PROTOCOL_T0_MAX_NULLS 200
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39 | #define PROTOCOL_T0_DEFAULT_WI 10
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40 | #define PROTOCOL_T0_MAX_SHORT_COMMAND 260
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41 | #define PROTOCOL_T0_MAX_SHORT_RESPONSE 258
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42 |
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43 | #define PROTOCOL_T14_MAX_NULLS 200
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44 | #define PROTOCOL_T14_DEFAULT_WI 10
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45 | #define PROTOCOL_T14_MAX_SHORT_COMMAND 260
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46 | #define PROTOCOL_T14_MAX_SHORT_RESPONSE 258
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47 |
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48 | /* Types of APDU's */
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49 | #define APDU_CASE_1 0x0001 /* Nor send neither receive data */
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50 | #define APDU_CASE_2S 0x0002 /* Receive data (1..256) */
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51 | #define APDU_CASE_3S 0x0003 /* Send data (1..255) */
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52 | #define APDU_CASE_4S 0x0004 /* Send data (1..255) and receive data (1..256) */
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53 | #define APDU_CASE_2E 0x0102 /* Receive data (1..65536) */
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54 | #define APDU_CASE_3E 0x0103 /* Send data (1..65535) */
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55 | #define APDU_CASE_4E 0x0104 /* Send data (1..65535) and receive data (1..65536) */
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56 | #define APDU_MALFORMED 5 /* Malformed APDU */
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57 |
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58 | /* Timings in ATR are not used in T=0 cards */
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59 | /* #undef PROTOCOL_T0_USE_DEFAULT_TIMINGS */
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60 |
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61 | /*
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62 | * Not exported functions declaration
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63 | */
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64 |
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65 | static int32_t Protocol_T0_Case2E(struct s_reader *reader, unsigned char *command, uint16_t command_len, unsigned char *rsp, uint16_t *lr);
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66 | static int32_t Protocol_T0_Case3E(struct s_reader *reader, unsigned char *command, unsigned char *rsp, uint16_t *lr);
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67 | static int32_t Protocol_T0_Case4E(struct s_reader *reader, unsigned char *command, uint16_t command_len, unsigned char *rsp, uint16_t *lr);
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68 | static int32_t Protocol_T0_ExchangeTPDU(struct s_reader *reader, unsigned char *command, uint16_t command_len, unsigned char *rsp, uint16_t *lr);
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69 |
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70 | static int32_t APDU_Cmd_Case(unsigned char *command, uint16_t command_len){
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71 | unsigned char B1;
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72 | uint16_t B2B3;
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73 | uint32_t L;
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74 | int32_t res;
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75 |
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76 | /* Calculate length of body */
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77 | L = MAX(command_len - 4, 0);
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78 |
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79 | /* Case 1 */
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80 | if(L == 0)
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81 | { res = APDU_CASE_1; }
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82 | else
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83 | {
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84 | /* Get first byte of body */
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85 | B1 = command[4];
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86 |
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87 | if((B1 != 0) && (L == (uint32_t)B1 + 1))
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88 | { res = APDU_CASE_2S; }
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89 | else if(L == 1)
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90 | { res = APDU_CASE_3S; }
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91 | else if((B1 != 0) && (L == (uint32_t)B1 + 2))
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92 | { res = APDU_CASE_4S; }
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93 | else if((B1 == 0) && (L > 2))
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94 | {
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95 | /* Get second and third byte of body */
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96 | B2B3 = (((uint16_t)(command[5]) << 8) | command[6]);
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97 |
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98 | if((B2B3 != 0) && (L == (uint32_t)B2B3 + 3))
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99 | { res = APDU_CASE_2E; }
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100 | else if(L == 3)
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101 | { res = APDU_CASE_3E; }
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102 | else if((B2B3 != 0) && (L == (uint32_t)B2B3 + 5))
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103 | { res = APDU_CASE_4E; }
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104 | else
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105 | { res = APDU_MALFORMED; }
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106 | }
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107 | else
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108 | { res = APDU_MALFORMED; }
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109 | }
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110 | return res;
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111 | }
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112 |
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113 | /*
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114 | * Exported funtions definition
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115 | */
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116 |
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117 | int32_t Protocol_T0_Command(struct s_reader *reader, unsigned char *command, uint16_t command_len, unsigned char *rsp, uint16_t *lr)
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118 | {
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119 | *lr = 0; //will be returned in case of error
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120 | if(command_len < 5) //APDU_CASE_1 or malformed
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121 | { return ERROR; }
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122 | int32_t cmd_case = APDU_Cmd_Case(command, command_len);
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123 | switch(cmd_case)
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124 | {
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125 | case APDU_CASE_2E:
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126 | return Protocol_T0_Case2E(reader, command, command_len, rsp, lr); /* fallthrough */
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127 | case APDU_CASE_3E:
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128 | return Protocol_T0_Case3E(reader, command, rsp, lr); /* fallthrough */
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129 | case APDU_CASE_4E:
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130 | return Protocol_T0_Case4E(reader, command, command_len, rsp, lr); /* fallthrough */
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131 | case APDU_CASE_4S:
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132 | command_len--; /* fallthrough */ //FIXME this should change 4S to 2S/3S command
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133 | case APDU_CASE_2S: /* fallthrough */
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134 | case APDU_CASE_3S:
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135 | return Protocol_T0_ExchangeTPDU(reader, command, command_len, rsp, lr); /* fallthrough */
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136 | default:
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137 | rdr_log_dbg(reader, D_IFD, "Protocol: T=0: Invalid APDU");
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138 | return ERROR;
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139 | }
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140 | }
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141 |
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142 | /*
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143 | * Not exported functions definition
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144 | */
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145 |
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146 |
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147 | static int32_t Protocol_T0_Case2E(struct s_reader *reader, unsigned char *command, uint16_t command_len, unsigned char *rsp, uint16_t *lr)
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148 | {
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149 | unsigned char buffer[PROTOCOL_T0_MAX_SHORT_COMMAND];
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150 | unsigned char tpdu_rsp[CTA_RES_LEN];
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151 | uint16_t tpdu_lr = 0;
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152 | uint32_t i;
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153 |
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154 | uint32_t Lc = (((uint32_t)(command[5]) << 8) | command[6]);
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155 | if(Lc < 256)
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156 | {
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157 | /* MAP APDU onto command TPDU */
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158 | memcpy(buffer, command, 4);
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159 | buffer[4] = (unsigned char) Lc;
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160 | memcpy(buffer + 5, command + 7, buffer[4]);
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161 | return Protocol_T0_ExchangeTPDU(reader, buffer, buffer[4] + 5, rsp, lr);
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162 | }
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163 |
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164 | /* Prepare envelope TPDU */
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165 | buffer[0] = command[0];
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166 | buffer[1] = 0xC2;
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167 | buffer[2] = 0x00;
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168 | buffer[3] = 0x00;
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169 |
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170 | for(i = 0; i < command_len; i += buffer[4])
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171 | {
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172 | /* Create envelope command TPDU */
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173 | buffer[4] = MIN(255, command_len - i);
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174 | memcpy(buffer + 5, command + i, buffer[4]);
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175 | call(Protocol_T0_ExchangeTPDU(reader, buffer, buffer[4] + 5, tpdu_rsp, &tpdu_lr));
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176 | /* Card does support envelope command */
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177 | if(tpdu_rsp[tpdu_lr - 2] == 0x90)
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178 | {
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179 | /* This is not the last segment */
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180 | if(buffer[4] + i < command_len)
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181 | { tpdu_lr = 0; }
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182 | else
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183 | {
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184 | memcpy(rsp, tpdu_rsp, tpdu_lr); // Map response TPDU onto APDU
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185 | *lr = tpdu_lr;
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186 | }
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187 | }
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188 | else /* Card does not support envelope command or error */
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189 | {
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190 | memcpy(rsp, tpdu_rsp, tpdu_lr); // Map response TPDU onto APDU
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191 | *lr = tpdu_lr;
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192 | break;
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193 | }
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194 | }
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195 | return OK;
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196 | }
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197 |
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198 |
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199 | static int32_t Protocol_T0_Case3E(struct s_reader *reader, unsigned char *command, unsigned char *rsp, uint16_t *lr)
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200 | {
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201 | int32_t ret;
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202 | unsigned char buffer[5];
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203 | unsigned char tpdu_rsp[CTA_RES_LEN];
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204 | uint16_t tpdu_lr = 0;
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205 | int32_t Lm, Lx;
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206 |
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207 | uint32_t Le = ((((uint32_t)(command[5]) << 8) | command[6]) == 0 ? 65536 : (((uint32_t)(command[5]) << 8) | command[6]));
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208 | memcpy(buffer, command, 4);//Map APDU command onto TPDU
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209 |
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210 | if(Le <= 256)
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211 | {
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212 | buffer[4] = (unsigned char)Le;
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213 | return Protocol_T0_ExchangeTPDU(reader, buffer, 5, rsp, lr); //this was Case3S !!!
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214 | }
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215 |
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216 | /* Map APDU onto command TPDU */
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217 | buffer[4] = 0x00;
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218 | call(Protocol_T0_ExchangeTPDU(reader, buffer, 5 , tpdu_rsp, &tpdu_lr));
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219 |
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220 | if(tpdu_rsp[tpdu_lr - 2] == 0x6C) /* Le not accepted, La indicated */
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221 | {
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222 | /* Map command APDU onto TPDU */
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223 | memcpy(buffer, command, 4);
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224 | buffer[4] = tpdu_rsp[tpdu_lr - 1];
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225 |
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226 | /* Delete response TPDU */
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227 | tpdu_lr = 0;
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228 |
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229 | return Protocol_T0_ExchangeTPDU(reader, buffer, 5, rsp, lr); //Reissue command
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230 | }
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231 |
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232 | memcpy(rsp, tpdu_rsp, tpdu_lr);//Map response TPDU onto APDU without change , also for SW1 = 0x67
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233 | *lr = tpdu_lr;
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234 | ret = OK;
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235 | if(tpdu_rsp[tpdu_lr - 2] == 0x61) /* Command processed, Lx indicated */
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236 | {
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237 | Lx = (tpdu_rsp[tpdu_lr - 1] == 0x00) ? 256 : tpdu_rsp[tpdu_lr - 1];
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238 | Lm = Le - (*lr - 2);
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239 |
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240 | /* Prepare Get Response TPDU */
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241 | buffer[0] = command[0];
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242 | buffer[1] = 0xC0;
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243 | buffer[2] = 0x00;
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244 | buffer[3] = 0x00;
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245 |
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246 | while(Lm > 0)
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247 | {
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248 | buffer[4] = (unsigned char) MIN(Lm, Lx);
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249 | call(Protocol_T0_ExchangeTPDU(reader, buffer, 5, tpdu_rsp, &tpdu_lr));
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250 |
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251 | /* Append response TPDU to APDU */
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252 | if((*lr + tpdu_lr) > CTA_RES_LEN)
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253 | {
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254 | rdr_log(reader, "TPDU Append error, new length %i exceeds max length %i", *lr + tpdu_lr, CTA_RES_LEN);
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255 | return ERROR;
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256 | }
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257 | memcpy(rsp + (*lr - 2), tpdu_rsp, tpdu_lr);
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258 | *lr += tpdu_lr;
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259 |
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260 | /* Delete response TPDU */
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261 | tpdu_lr = 0;
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262 |
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263 | Lm = Le - (*lr - 2);
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264 | }/* Lm == 0 */
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265 | }
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266 | return ret;
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267 | }
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268 |
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269 |
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270 | static int32_t Protocol_T0_Case4E(struct s_reader *reader, unsigned char *command, uint16_t command_len, unsigned char *rsp, uint16_t *lr)
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271 | {
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272 | int32_t ret;
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273 | unsigned char buffer[PROTOCOL_T0_MAX_SHORT_COMMAND];
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274 | unsigned char tpdu_rsp[CTA_RES_LEN];
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275 | memset(tpdu_rsp, 0, sizeof(tpdu_rsp));
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276 | uint16_t tpdu_lr = 0;
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277 | int32_t Le;
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278 |
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279 | uint32_t Lc = (((uint32_t)(command[5]) << 8) | command[6]);
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280 | /* 4E1 */
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281 | if(Lc < 256)
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282 | {
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283 | /* Map APDU onto command TPDU */
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284 | memcpy(buffer, command, 4);
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285 | buffer[4] = (unsigned char) Lc;
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286 | memcpy(buffer + 5, command, buffer[4]);
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287 | ret = Protocol_T0_ExchangeTPDU(reader, buffer, buffer[4] + 5, tpdu_rsp, &tpdu_lr);
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288 | }
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289 | else /* 4E2 */
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290 | { ret = Protocol_T0_Case2E(reader, command, command_len, tpdu_rsp, &tpdu_lr); }
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291 |
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292 | /* 4E1 a) b) and c) */
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293 | if(ret == OK)
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294 | {
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295 | Le = ((((uint32_t)(command[command_len - 2]) << 8) | command[command_len - 1]) == 0 ? 65536 : (((uint32_t)(command[command_len - 2]) << 8) | command[command_len - 1]));
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296 | if(tpdu_lr > 1 && tpdu_rsp[tpdu_lr - 2] == 0x61)
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297 | {
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298 | /* Lm == (Le - APDU_Rsp_RawLen (tpdu_rsp)) == 0 */
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299 | if(tpdu_rsp[tpdu_lr - 1] != 0x00)
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300 | { Le = MIN(tpdu_rsp[tpdu_lr - 1], Le); }
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301 |
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302 | /* Delete response TPDU */
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303 | tpdu_lr = 0;
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304 |
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305 | /* Prepare extended Get Response APDU command */
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306 | buffer[0] = command[0];
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307 | buffer[1] = 0xC0;
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308 | buffer[2] = 0x00;
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309 | buffer[3] = 0x00;
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310 | buffer[4] = 0x00; /* B1 = 0x00 */
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311 | buffer[5] = (unsigned char)(Le >> 8); /* B2 = BL-1 */
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312 | buffer[6] = (unsigned char)(Le & 0x00FF); /* B3 = BL */
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313 | ret = Protocol_T0_Case3E(reader, buffer, rsp, lr);
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314 | }
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315 | else if(tpdu_lr > 1 && (tpdu_rsp[tpdu_lr - 2] & 0xF0) == 0x60)
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316 | {
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317 | /* Map response TPDU onto APDU without change */
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318 | memcpy(rsp, tpdu_rsp, tpdu_lr);
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319 | *lr = tpdu_lr;
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320 | }
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321 | else
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322 | {
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323 | /* Delete response TPDU */
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324 | tpdu_lr = 0;
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325 |
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326 | /* Prepare extended Get Response APDU command */
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327 | buffer[0] = command[0];
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328 | buffer[1] = 0xC0;
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329 | buffer[2] = 0x00;
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330 | buffer[3] = 0x00;
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331 | buffer[4] = 0x00; /* B1 = 0x00 */
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332 | buffer[5] = (unsigned char) Le >> 8; /* B2 = BL-1 */
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333 | buffer[6] = (unsigned char) Le & 0x00FF; /* B3 = BL */
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334 | ret = Protocol_T0_Case3E(reader, buffer, rsp, lr);
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335 | }
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336 | }
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337 | return ret;
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338 | }
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339 |
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340 |
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341 | static int32_t Protocol_T0_ExchangeTPDU(struct s_reader *reader, unsigned char *command, uint16_t command_len, unsigned char *rsp, uint16_t *lr)
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342 | {
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343 | unsigned char buffer[PROTOCOL_T0_MAX_SHORT_RESPONSE];
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344 | unsigned char *data;
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345 | int32_t Lc, Le, sent, recved, expectedlen;
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346 | int32_t nulls, cmd_case;
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347 | int32_t timeout;
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348 | *lr = 0; //in case of error this will be returned
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349 |
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350 | cmd_case = APDU_Cmd_Case(command, command_len);
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351 | switch(cmd_case)
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352 | {
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353 | case APDU_CASE_2S:
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354 | Lc = command[4];
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355 | Le = 0;
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356 | expectedlen = 1;
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357 | data = command + 5;
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358 | break;
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359 | case APDU_CASE_3S:
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360 | Lc = 0;
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361 | Le = command[4];
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362 | if(!Le)
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363 | { expectedlen = 2; }
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364 | else
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365 | { expectedlen = 1 + Le + 2; }
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366 | data = NULL;
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367 | break;
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368 | default:
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369 | rdr_log_dbg(reader, D_TRACE, "ERROR: invalid cmd_case = %i in Protocol_T0_ExchangeTPDU", cmd_case);
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370 | return ERROR;
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371 | }
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372 | timeout = ICC_Async_GetTimings(reader, reader->char_delay); // we are going to send: char delay timeout
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373 | if(ICC_Async_Transmit(reader, 5, expectedlen, command, 0, timeout) != OK) { return ERROR; } //Send header bytes
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374 |
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375 | /* Initialise counters */
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376 | nulls = 0;
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377 | sent = 0;
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378 | recved = 0;
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379 |
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380 | /*
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381 | * Let's be a bit paranoid with buffer sizes within this loop
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382 | * so it doesn't overflow reception and transmission buffers
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383 | * if card does not strictly respect the protocol
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384 | */
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385 |
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386 | while(recved < PROTOCOL_T0_MAX_SHORT_RESPONSE)
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387 | {
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388 | timeout = ICC_Async_GetTimings(reader, reader->read_timeout); // we are going to receive: WWT timeout
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389 | if(ICC_Async_Receive(reader, 1, buffer + recved, 0, timeout) != OK) { return ERROR; } //Read one procedure byte
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390 |
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391 | /* NULL byte received */
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392 | if(buffer[recved] == 0x60)
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393 | {
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394 | nulls++;
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395 | if(nulls >= PROTOCOL_T0_MAX_NULLS) //Maximum number of nulls reached
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396 | {
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397 | rdr_log_dbg(reader, D_TRACE, "ERROR: %s: Maximum number of nulls reached: %d", __func__, nulls);
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398 | return ERROR;
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399 | }
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400 | }
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401 | else if((buffer[recved] & 0xF0) == 0x60 || (buffer[recved] & 0xF0) == 0x90) /* SW1 byte received */
|
---|
402 | {
|
---|
403 | rdr_log_dbg(reader, D_TRACE, "SW1: %02X", buffer[recved] & 0xf0);
|
---|
404 | recved++;
|
---|
405 | if(recved >= PROTOCOL_T0_MAX_SHORT_RESPONSE)
|
---|
406 | {
|
---|
407 | rdr_log_dbg(reader, D_TRACE, "ERROR: %s: Maximum short response exceeded: %d", __func__, recved);
|
---|
408 | return ERROR;
|
---|
409 | }
|
---|
410 | timeout = ICC_Async_GetTimings(reader, reader->read_timeout); // we are going to receive: WWT timeout
|
---|
411 | if(ICC_Async_Receive(reader, 1, buffer + recved, 0, timeout) != OK) { return ERROR; } //Read SW2 byte
|
---|
412 | rdr_log_dbg(reader, D_TRACE, "SW2: %02X", buffer[recved] & 0xf0);
|
---|
413 | recved++;
|
---|
414 | break;
|
---|
415 | }
|
---|
416 | else if((buffer[recved] & 0x0E) == (command[1] & 0x0E)) /* ACK byte received */
|
---|
417 | {
|
---|
418 | //printf("ack\n");
|
---|
419 | /* Reset null's counter */
|
---|
420 | nulls = 0;
|
---|
421 |
|
---|
422 | /* Case 2 command: send data */
|
---|
423 | if(cmd_case == APDU_CASE_2S)
|
---|
424 | {
|
---|
425 | if(sent >= Lc)
|
---|
426 | {
|
---|
427 | rdr_log_dbg(reader, D_TRACE, "ERROR: %s: ACK byte: sent=%d exceeds Lc=%d", __func__, sent, Lc);
|
---|
428 | return ERROR;
|
---|
429 | }
|
---|
430 | timeout = ICC_Async_GetTimings(reader, reader->char_delay); // we are going to send: char delay timeout
|
---|
431 | if(ICC_Async_Transmit(reader, MAX(Lc - sent, 0), 2, data + sent, 0, timeout) != OK) { return ERROR; } /* Send remaining data bytes */
|
---|
432 | sent = Lc;
|
---|
433 | continue;
|
---|
434 | }
|
---|
435 | else /* Case 3 command: receive data */
|
---|
436 | {
|
---|
437 | if(recved > PROTOCOL_T0_MAX_SHORT_RESPONSE)
|
---|
438 | {
|
---|
439 | rdr_log_dbg(reader, D_TRACE, "ERROR: %s: Case 3 ACK - maximum short response exceeded: %d", __func__, recved);
|
---|
440 | return ERROR;
|
---|
441 | }
|
---|
442 |
|
---|
443 | /*
|
---|
444 | * Le <= PROTOCOL_T0_MAX_SHORT_RESPONSE - 2 for short commands
|
---|
445 | */
|
---|
446 |
|
---|
447 | /* Read remaining data bytes */
|
---|
448 | timeout = ICC_Async_GetTimings(reader, reader->read_timeout); // we are going to receive: WWT timeout
|
---|
449 | if(ICC_Async_Receive(reader, MAX(Le - recved, 0), buffer + recved, 0, timeout) != OK) { return ERROR; }
|
---|
450 | recved = Le;
|
---|
451 | continue;
|
---|
452 | }
|
---|
453 | }
|
---|
454 | else if((buffer[recved] & 0x0E) == ((~command[1]) & 0x0E)) /* ~ACK byte received */
|
---|
455 | {
|
---|
456 | //printf("~ack\n");
|
---|
457 | nulls = 0; //Reset null's counter
|
---|
458 |
|
---|
459 | /* Case 2 command: send data */
|
---|
460 | if(cmd_case == APDU_CASE_2S)
|
---|
461 | {
|
---|
462 | if(sent >= Lc)
|
---|
463 | {
|
---|
464 | rdr_log_dbg(reader, D_TRACE, "ERROR: %s: ~ACK byte: sent=%d exceeds Lc=%d", __func__, sent, Lc);
|
---|
465 | return ERROR;
|
---|
466 | }
|
---|
467 | timeout = ICC_Async_GetTimings(reader, reader->char_delay); // we are going to send: char delay timeout
|
---|
468 | if(ICC_Async_Transmit(reader, 1, 1, data + sent, 0, timeout) != OK) { return ERROR; } //Send next data byte
|
---|
469 | sent++;
|
---|
470 | continue;
|
---|
471 | }
|
---|
472 | else /* Case 3 command: receive data */
|
---|
473 | {
|
---|
474 | if(recved > PROTOCOL_T0_MAX_SHORT_RESPONSE)
|
---|
475 | {
|
---|
476 | rdr_log_dbg(reader, D_TRACE, "ERROR: %s: Case 3 ~ACK - maximum short response exceeded: %d", __func__, recved);
|
---|
477 | return ERROR;
|
---|
478 | }
|
---|
479 | timeout = ICC_Async_GetTimings(reader, reader->read_timeout); // we are going to receive: WWT timeout
|
---|
480 | if(ICC_Async_Receive(reader, 1, buffer + recved, 0, timeout) != OK) { return ERROR; } //Read next data byte
|
---|
481 | recved++;
|
---|
482 | continue;
|
---|
483 | }
|
---|
484 | }
|
---|
485 | else /* Anything else received */
|
---|
486 | {
|
---|
487 | rdr_log_dbg(reader, D_TRACE, "ERROR: %s: Received unexpected character: %02X", __func__, buffer[recved]);
|
---|
488 | return ERROR;
|
---|
489 | }
|
---|
490 | }//while
|
---|
491 |
|
---|
492 | memcpy(rsp, buffer, recved);
|
---|
493 | *lr = recved;
|
---|
494 | return OK;
|
---|
495 | }
|
---|
496 |
|
---|
497 | int32_t Protocol_T14_ExchangeTPDU(struct s_reader *reader, unsigned char *cmd_raw, uint16_t command_len, unsigned char *rsp, uint16_t *lr)
|
---|
498 | {
|
---|
499 | unsigned char buffer[PROTOCOL_T14_MAX_SHORT_RESPONSE];
|
---|
500 | int32_t recved;
|
---|
501 | int32_t cmd_case;
|
---|
502 | int32_t timeout;
|
---|
503 | unsigned char ixor = 0x3E;
|
---|
504 | unsigned char ixor1 = 0x3F;
|
---|
505 | int32_t i;
|
---|
506 | int32_t cmd_len = (int32_t) command_len;
|
---|
507 | *lr = 0; //in case of error this is returned
|
---|
508 |
|
---|
509 | /* Parse APDU */
|
---|
510 | cmd_case = APDU_Cmd_Case(cmd_raw, cmd_len);
|
---|
511 | for(i = 0; i < cmd_len; i++)
|
---|
512 | { ixor ^= cmd_raw[i]; }
|
---|
513 |
|
---|
514 | /* Check case of command */
|
---|
515 | if((cmd_case != APDU_CASE_2S) && (cmd_case != APDU_CASE_3S))
|
---|
516 | {
|
---|
517 | rdr_log_dbg(reader, D_TRACE, "ERROR: invalid cmd_case = %i in Protocol_T14_ExchangeTPDU", cmd_case);
|
---|
518 | return ERROR;
|
---|
519 | }
|
---|
520 |
|
---|
521 | buffer[0] = 0x01; //send 0x01 byte
|
---|
522 | memcpy(buffer + 1, cmd_raw, cmd_len); // apdu
|
---|
523 | buffer[cmd_len + 1] = ixor; // xor byte
|
---|
524 |
|
---|
525 | /* Send apdu */
|
---|
526 | timeout = ICC_Async_GetTimings(reader, reader->char_delay); // we are going to send: char delay timeout
|
---|
527 | if(ICC_Async_Transmit(reader, cmd_len + 2, 0, buffer, 0, timeout) != OK) { return ERROR; } //send apdu
|
---|
528 | if(cmd_raw[0] == 0x02 && cmd_raw[1] == 0x09) { cs_sleepms(2500); } //FIXME why wait? -> needed for init on overclocked T14 cards
|
---|
529 |
|
---|
530 | timeout = ICC_Async_GetTimings(reader, reader->read_timeout); // we are going to receive: WWT timeout
|
---|
531 | // if ((reader->typ == R_SMART) && (reader->smart_type >= 2)) timeout *= 1.1;
|
---|
532 | if(ICC_Async_Receive(reader, 8, buffer, 0, timeout) != OK) { return ERROR; } //Read one procedure byte
|
---|
533 | recved = (int32_t)buffer[7];
|
---|
534 | if(recved)
|
---|
535 | {
|
---|
536 | timeout = ICC_Async_GetTimings(reader, reader->read_timeout); // we are going to receive: WWT timeout
|
---|
537 | // if ((reader->typ == R_SMART) && (reader->smart_type >= 2)) timeout *= 1.1;
|
---|
538 | if(ICC_Async_Receive(reader, recved, buffer + 8, 0 , timeout) != OK) {return ERROR; }
|
---|
539 | }
|
---|
540 | timeout = ICC_Async_GetTimings(reader, reader->read_timeout); // we are going to receive: WWT timeout
|
---|
541 | // if ((reader->typ == R_SMART) && (reader->smart_type >= 2)) timeout *= 1.1;
|
---|
542 | if(ICC_Async_Receive(reader, 1, &ixor, 0, timeout) != OK) {return ERROR; }
|
---|
543 | for(i = 0; i < 8 + recved; i++)
|
---|
544 | { ixor1 ^= buffer[i]; }
|
---|
545 | if(ixor1 != ixor)
|
---|
546 | {
|
---|
547 | rdr_log_dbg(reader, D_TRACE, "ERROR: invalid checksum = %02X expected %02X", ixor1, ixor);
|
---|
548 | return ERROR;
|
---|
549 | }
|
---|
550 | memcpy(buffer + 8 + recved, buffer + 2, 2);
|
---|
551 | *lr = recved + 2;
|
---|
552 | memcpy(rsp, buffer + 8, *lr);
|
---|
553 | return OK;
|
---|
554 | }
|
---|
555 | #endif
|
---|