fix 'hf iclass snoop'

[proxmark3-svn] / client / cmdhficlass.c

diff --git a/client/cmdhficlass.c b/client/cmdhficlass.c
index 229af0e19d9deffa85601de80df236efa0046e34..0049316637b0d3c1c7d78db31db98561ab5a0cb3 100644 (file)
--- a/client/cmdhficlass.c
+++ b/client/cmdhficlass.c
@@ -18,6 +18,7 @@
 #include "iso14443crc.h" // Can also be used for iClass, using 0xE012 as CRC-type
 #include "comms.h"
 #include "ui.h"
+#include "cliparser/cliparser.h"
 #include "cmdparser.h"
 #include "cmdhficlass.h"
 #include "common.h"
@@ -175,8 +176,29 @@ static int CmdHFiClassList(const char *Cmd) {
 
 
 static int CmdHFiClassSnoop(const char *Cmd) {
-       UsbCommand c = {CMD_SNOOP_ICLASS};
+
+       CLIParserInit("hf iclass snoop", "\nSnoop a communication between an iClass Reader and an iClass Tag.", NULL);
+       void* argtable[] = {
+               arg_param_begin,
+               arg_lit0("j",  "--jam",    "Jam (prevent) e-purse Updates"),
+               arg_param_end
+       };
+       if (CLIParserParseString(Cmd, argtable, arg_getsize(argtable), true)){
+               CLIParserFree();
+               return 0;
+       }
+
+       bool jam_epurse_update = arg_get_lit(1);
+
+       const uint8_t update_epurse_sequence[2] = {0x87, 0x02};
+               
+       UsbCommand c = {CMD_SNOOP_ICLASS, {0}};
+       if (jam_epurse_update) {
+               c.arg[0] = sizeof(update_epurse_sequence);
+               memcpy(c.d.asBytes, update_epurse_sequence, sizeof(update_epurse_sequence));
+       }
        SendCommand(&c);
+
        return 0;
 }