cvs.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 <string.h>
  13 //#include "proxusb.h"
  14 #include "proxmark3.h"
  15 #include "ui.h"
  16 #include "graph.h"
  17 #include "cmdparser.h"
  18 #include "cmdlfhid.h"
  19
  20 static int CmdHelp(const char *Cmd);
  21
  22 int CmdHIDDemod(const char *Cmd)
  23 {
  24   if (GraphTraceLen < 4800) {
  25     PrintAndLog("too short; need at least 4800 samples");
  26     return 0;
  27   }
  28
  29   GraphTraceLen = 4800;
  30   for (int i = 0; i < GraphTraceLen; ++i) {
  31     if (GraphBuffer[i] < 0) {
  32       GraphBuffer[i] = 0;
  33     } else {
  34       GraphBuffer[i] = 1;
  35     }
  36   }
  37   RepaintGraphWindow();
  38   return 0;
  39 }
  40
  41 int CmdHIDDemodFSK(const char *Cmd)
  42 {
  43   UsbCommand c={CMD_HID_DEMOD_FSK};
  44   SendCommand(&c);
  45   return 0;
  46 }
  47
  48 int CmdHIDSim(const char *Cmd)
  49 {
  50   unsigned int hi2 = 0, hi = 0, lo = 0;
  51   int n = 0, i = 0;
  52   UsbCommand c;
  53
  54   if (strchr(Cmd,'l') != 0) {
  55     while (sscanf(&Cmd[i++], "%1x", &n ) == 1) {
  56       hi2 = (hi2 << 4) | (hi >> 28);
  57       hi = (hi << 4) | (lo >> 28);
  58       lo = (lo << 4) | (n & 0xf);
  59     }
  60
  61     PrintAndLog("Cloning tag with long ID %x%08x%08x", hi2, hi, lo);
  62
  63     c.d.asBytes[0] = 1;
  64         }
  65         else {
  66     while (sscanf(&Cmd[i++], "%1x", &n ) == 1) {
  67       hi = (hi << 4) | (lo >> 28);
  68       lo = (lo << 4) | (n & 0xf);
  69     }
  70
  71     PrintAndLog("Cloning tag with ID %x%08x", hi, lo);
  72
  73     hi2 = 0;
  74     c.d.asBytes[0] = 0;
  75   }
  76
  77   c.cmd = CMD_HID_SIM_TAG;
  78   c.arg[0] = hi2;
  79   c.arg[1] = hi;
  80   c.arg[2] = lo;
  81
  82 //  UsbCommand c = {CMD_HID_SIM_TAG, {hi, lo, 0}};
  83   SendCommand(&c);
  84   return 0;
  85 }
  86
  87 int CmdHIDClone(const char *Cmd)
  88 {
  89   unsigned int hi = 0, lo = 0;
  90   int n = 0, i = 0;
  91
  92   while (sscanf(&Cmd[i++], "%1x", &n ) == 1) {
  93     hi = (hi << 4) | (lo >> 28);
  94     lo = (lo << 4) | (n & 0xf);
  95   }
  96
  97   PrintAndLog("Cloning tag with ID %x%08x", hi, lo);
  98
  99   UsbCommand c = {CMD_HID_CLONE_TAG, {hi, lo}};
 100   SendCommand(&c);
 101   return 0;
 102 }
 103
 104 static command_t CommandTable[] =
 105 {
 106   {"help",      CmdHelp,        1, "This help"},
 107   {"demod",     CmdHIDDemod,    1, "Demodulate HID Prox Card II (not optimal)"},
 108   {"fskdemod",  CmdHIDDemodFSK, 1, "Realtime HID FSK demodulator"},
 109   {"sim",       CmdHIDSim,      1, "<ID> -- HID tag simulator"},
 110   {"clone",     CmdHIDClone,    1, "<ID> ['l'] -- Clone HID to T55x7 (tag must be in antenna)(option 'l' for 84bit ID)"},
 111   {NULL, NULL, 0, NULL}
 112 };
 113
 114 int CmdLFHID(const char *Cmd)
 115 {
 116   CmdsParse(CommandTable, Cmd);
 117   return 0;
 118 }
 119
 120 int CmdHelp(const char *Cmd)
 121 {
 122   CmdsHelp(CommandTable);
 123   return 0;
 124 }