git.zerfleddert.de Git - proxmark3-svn/blob - client/cmdlfhid.c

   1 //-----------------------------------------------------------------------------
   2 // Copyright (C) 2010 iZsh <izsh at fail0verflow.com>
   3 //
   4 // This code is licensed to you under the terms of the GNU GPL, version 2 or,
   5 // at your option, any later version. See the LICENSE.txt file for the text of
   6 // the license.
   7 //-----------------------------------------------------------------------------
   8 // Low frequency HID commands
   9 //-----------------------------------------------------------------------------
  10
  11 #include <stdio.h>
  12 #include "proxusb.h"
  13 #include "proxmark3.h"
  14 #include "ui.h"
  15 #include "graph.h"
  16 #include "cmdparser.h"
  17 #include "cmdlfhid.h"
  18
  19 static int CmdHelp(const char *Cmd);
  20
  21 int CmdHIDDemod(const char *Cmd)
  22 {
  23   if (GraphTraceLen < 4800) {
  24     PrintAndLog("too short; need at least 4800 samples");
  25     return 0;
  26   }
  27
  28   GraphTraceLen = 4800;
  29   for (int i = 0; i < GraphTraceLen; ++i) {
  30     if (GraphBuffer[i] < 0) {
  31       GraphBuffer[i] = 0;
  32     } else {
  33       GraphBuffer[i] = 1;
  34     }
  35   }
  36   RepaintGraphWindow();
  37   return 0;
  38 }
  39
  40 int CmdHIDDemodFSK(const char *Cmd)
  41 {
  42   UsbCommand c={CMD_HID_DEMOD_FSK};
  43   SendCommand(&c);
  44   return 0;
  45 }
  46
  47 int CmdHIDSim(const char *Cmd)
  48 {
  49   unsigned int hi = 0, lo = 0;
  50   int n = 0, i = 0;
  51
  52   while (sscanf(&Cmd[i++], "%1x", &n ) == 1) {
  53     hi = (hi << 4) | (lo >> 28);
  54     lo = (lo << 4) | (n & 0xf);
  55   }
  56
  57   PrintAndLog("Emulating tag with ID %x%16x", hi, lo);
  58
  59   UsbCommand c = {CMD_HID_SIM_TAG, {hi, lo, 0}};
  60   SendCommand(&c);
  61   return 0;
  62 }
  63
  64 int CmdHIDClone(const char *Cmd)
  65 {
  66   unsigned int hi = 0, lo = 0;
  67   int n = 0, i = 0;
  68
  69   while (sscanf(&Cmd[i++], "%1x", &n ) == 1) {
  70     hi = (hi << 4) | (lo >> 28);
  71     lo = (lo << 4) | (n & 0xf);
  72   }
  73
  74   PrintAndLog("Cloning tag with ID %x%08x", hi, lo);
  75
  76   UsbCommand c = {CMD_HID_CLONE_TAG, {hi, lo}};
  77   SendCommand(&c);
  78   return 0;
  79 }
  80
  81 static command_t CommandTable[] =
  82 {
  83   {"help",      CmdHelp,        1, "This help"},
  84   {"demod",     CmdHIDDemod,    1, "Demodulate HID Prox Card II (not optimal)"},
  85   {"fskdemod",  CmdHIDDemodFSK, 0, "Realtime HID FSK demodulator"},
  86   {"sim",       CmdHIDSim,      0, "<ID> -- HID tag simulator"},
  87   {"clone",     CmdHIDClone,    0, "<ID> -- Clone HID to T55x7 (tag must be in antenna)"},
  88   {NULL, NULL, 0, NULL}
  89 };
  90
  91 int CmdLFHID(const char *Cmd)
  92 {
  93   CmdsParse(CommandTable, Cmd);
  94   return 0;
  95 }
  96
  97 int CmdHelp(const char *Cmd)
  98 {
  99   CmdsHelp(CommandTable);
 100   return 0;
 101 }