proxmark3/client/cmdhfemv.c
2017-02-05 22:16:50 +01:00

249 lines
6.4 KiB
C

//-----------------------------------------------------------------------------
// Copyright (C) 2014 Peter Fillmore
// 2017 iceman
//
// This code is licensed to you under the terms of the GNU GPL, version 2 or,
// at your option, any later version. See the LICENSE.txt file for the text of
// the license.
//-----------------------------------------------------------------------------
// High frequency EMV commands
//-----------------------------------------------------------------------------
#include "cmdhfemv.h"
static int CmdHelp(const char *Cmd);
int usage_hf_emv_trans(void){
PrintAndLog("perform an EMV transaction");
PrintAndLog("Usage: hf emv trans [h]");
PrintAndLog("Options:");
PrintAndLog(" h : this help");
PrintAndLog("");
PrintAndLog("Samples:");
PrintAndLog(" hf emv trans");
return 0;
}
int usage_hf_emv_getrnd(void){
PrintAndLog("retrieve the UN number from a terminal");
PrintAndLog("Usage: hf emv getrnd [h]");
PrintAndLog("Options:");
PrintAndLog(" h : this help");
PrintAndLog("");
PrintAndLog("Samples:");
PrintAndLog(" hf emv getrnd");
return 0;
}
int usage_hf_emv_eload(void){
PrintAndLog("set EMV tags in the device to use in a transaction");
PrintAndLog("Usage: hf emv eload [h] o <filename w/o .bin>");
PrintAndLog("Options:");
PrintAndLog(" h : this help");
PrintAndLog(" o <filename> : filename w/o '.bin'");
PrintAndLog("");
PrintAndLog("Samples:");
PrintAndLog(" hf emv eload o myfile");
return 0;
}
int usage_hf_emv_sim(void){
PrintAndLog("Simulates a EMV contactless card");
PrintAndLog("Usage: hf emv sim [h]");
PrintAndLog("Options:");
PrintAndLog(" h : this help");
PrintAndLog("");
PrintAndLog("Samples:");
PrintAndLog(" hf emv sim");
return 0;
}
int usage_hf_emv_dump(void){
PrintAndLog("Gets EMV contactless tag values.");
PrintAndLog("and saves binary dump into the file `filename.bin` or `cardUID.bin`");
PrintAndLog("Usage: hf emv dump [h] o <filename w/o .bin>");
PrintAndLog("Options:");
PrintAndLog(" h : this help");
PrintAndLog(" o <filename> : filename w/o '.bin' to dump bytes");
PrintAndLog("");
PrintAndLog("Samples:");
PrintAndLog(" hf emv dump");
PrintAndLog(" hf emv dump o myfile");
return 0;
}
//perform an EMV transaction
int CmdHfEmvTrans(const char *Cmd) {
char cmdp = param_getchar(Cmd, 0);
if ( cmdp == 'h' || cmdp == 'H') return usage_hf_emv_trans();
UsbCommand c = {CMD_EMV_TRANSACTION, {0, 0, 0}};
clearCommandBuffer();
SendCommand(&c);
return 0;
}
//retrieve the UN number from a terminal
int CmdHfEmvGetrng(const char *Cmd) {
char cmdp = param_getchar(Cmd, 0);
if ( cmdp == 'h' || cmdp == 'H') return usage_hf_emv_getrnd();
UsbCommand c = {CMD_EMV_GET_RANDOM_NUM, {0, 0, 0}};
clearCommandBuffer();
SendCommand(&c);
return 0;
}
//set EMV tags in the device to use in a transaction
int CmdHfEmvELoad(const char *Cmd) {
FILE * f;
char filename[FILE_PATH_SIZE];
char *fnameptr = filename;
int len;
bool errors = false;
uint8_t cmdp = 0;
while(param_getchar(Cmd, cmdp) != 0x00) {
switch(param_getchar(Cmd, cmdp)) {
case 'h':
case 'H':
return usage_hf_emv_eload();
case 'o':
case 'O':
len = param_getstr(Cmd, cmdp+1, filename);
if (!len)
errors = true;
if (len > FILE_PATH_SIZE-5)
len = FILE_PATH_SIZE-5;
sprintf(fnameptr + len,".bin");
cmdp += 2;
break;
default:
PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
errors = true;
break;
}
if(errors) break;
}
//Validations
if(errors) return usage_hf_emv_eload();
// open file
f = fopen(filename,"r");
if (!f) {
PrintAndLog("File %s not found or locked", filename);
return 1;
}
char line[512];
char *token;
uint16_t tag;
UsbCommand c = {CMD_EMV_LOAD_VALUE, {0,0,0}};
// transfer to device
while (fgets(line, sizeof (line), f)) {
printf("LINE = %s\n", line);
token = strtok(line, ":");
tag = (uint16_t)strtol(token, NULL, 0);
token = strtok(NULL,"");
c.arg[0] = tag;
memcpy(c.d.asBytes, token, strlen(token));
clearCommandBuffer();
SendCommand(&c);
printf("Loaded TAG = %04x\n", tag);
printf("Loaded VALUE = %s\n", token);
}
fclose(f);
PrintAndLog("loaded %s", filename);
//PrintAndLog("\nLoaded %d bytes from file: %s to emulator memory", numofbytes, filename);
return 0;
}
int CmdHfEmvDump(const char *Cmd){
bool errors = false;
uint8_t cmdp = 0;
while(param_getchar(Cmd, cmdp) != 0x00) {
switch(param_getchar(Cmd, cmdp)) {
case 'h':
case 'H':
return usage_hf_emv_dump();
default:
PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
errors = true;
break;
}
if(errors) break;
}
//Validations
if(errors) return usage_hf_emv_dump();
UsbCommand c = {CMD_EMV_DUMP_CARD, {0, 0, 0}};
clearCommandBuffer();
SendCommand(&c);
UsbCommand resp;
if (!WaitForResponseTimeout(CMD_ACK, &resp, 3000)) {
PrintAndLog("Command execute time-out");
return 1;
}
return 0;
}
/*
int CmdHfEmvSim(const char *Cmd) {
bool errors = false;
uint8_t cmdp = 0;
while(param_getchar(Cmd, cmdp) != 0x00) {
switch(param_getchar(Cmd, cmdp)) {
case 'h':
case 'H':
return usage_hf_emv_sim();
default:
PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
errors = true;
break;
}
if(errors) break;
}
//Validations
if(errors) return usage_hf_emv_sim();
UsbCommand c = {CMD_SIMULATE_TAG_LEGIC_RF, {6,3,0}};
sscanf(Cmd, " %"lli" %"lli" %"lli, &c.arg[0], &c.arg[1], &c.arg[2]);
clearCommandBuffer();
SendCommand(&c);
return 0;
}
*/
int CmdHfEmvList(const char *Cmd) {
CmdHFList("7816");
return 0;
}
static command_t CommandTable[] = {
{"help", CmdHelp, 1, "This help"},
{"trans", CmdHfEmvTrans, 0, "Perform EMV Reader Transaction"},
{"getrng", CmdHfEmvGetrng, 0, "get random number from terminal"},
{"eload", CmdHfEmvELoad, 0, "load EMV tag into device"},
{"dump", CmdHfEmvDump, 0, "Dump EMV tag values"},
// {"sim", CmdHfEmvSim, 0, "Start tag simulator"},
{"list", CmdHfEmvList, 1, "[Deprecated] List ISO7816 history"},
{NULL, NULL, 0, NULL}
};
int CmdHFEmv(const char *Cmd) {
clearCommandBuffer();
CmdsParse(CommandTable, Cmd);
return 0;
}
int CmdHelp(const char *Cmd) {
CmdsHelp(CommandTable);
return 0;
}