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 <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 hi = 0, lo = 0;
  51   int n = 0, i = 0;
  52
  53   while (sscanf(&Cmd[i++], "%1x", &n ) == 1) {
  54     hi = (hi << 4) | (lo >> 28);
  55     lo = (lo << 4) | (n & 0xf);
  56   }
  57
  58   PrintAndLog("Emulating tag with ID %x%16x", hi, lo);
  59
  60   UsbCommand c = {CMD_HID_SIM_TAG, {hi, lo, 0}};
  61   SendCommand(&c);
  62   return 0;
  63 }
  64
  65 int CmdHIDClone(const char *Cmd)
  66 {
  67   unsigned int hi2 = 0, hi = 0, lo = 0;
  68   int n = 0, i = 0;
  69   UsbCommand c;
  70
  71   if (strchr(Cmd,'l') != 0) {
  72         while (sscanf(&Cmd[i++], "%1x", &n ) == 1) {
  73       hi2 = (hi2 << 4) | (hi >> 28);
  74       hi = (hi << 4) | (lo >> 28);
  75       lo = (lo << 4) | (n & 0xf);
  76     }
  77
  78     PrintAndLog("Cloning tag with long ID %x%08x%08x", hi2, hi, lo);
  79
  80     c.d.asBytes[0] = 1;
  81   }
  82   else {
  83         while (sscanf(&Cmd[i++], "%1x", &n ) == 1) {
  84       hi = (hi << 4) | (lo >> 28);
  85       lo = (lo << 4) | (n & 0xf);
  86     }
  87
  88     PrintAndLog("Cloning tag with ID %x%08x", hi, lo);
  89
  90     hi2 = 0;
  91     c.d.asBytes[0] = 0;
  92   }
  93
  94   c.cmd = CMD_HID_CLONE_TAG;
  95   c.arg[0] = hi2;
  96   c.arg[1] = hi;
  97   c.arg[2] = lo;
  98
  99   SendCommand(&c);
 100   return 0;
 101 }
 102
 103 static command_t CommandTable[] =
 104 {
 105   {"help",      CmdHelp,        1, "This help"},
 106   {"demod",     CmdHIDDemod,    1, "Demodulate HID Prox Card II (not optimal)"},
 107   {"fskdemod",  CmdHIDDemodFSK, 1, "Realtime HID FSK demodulator"},
 108   {"sim",       CmdHIDSim,      1, "<ID> -- HID tag simulator"},
 109   {"clone",     CmdHIDClone,    1, "<ID> ['l'] -- Clone HID to T55x7 (tag must be in antenna)(option 'l' for 84bit ID)"},
 110   {NULL, NULL, 0, NULL}
 111 };
 112
 113 int CmdLFHID(const char *Cmd)
 114 {
 115   CmdsParse(CommandTable, Cmd);
 116   return 0;
 117 }
 118
 119 int CmdHelp(const char *Cmd)
 120 {
 121   CmdsHelp(CommandTable);
 122   return 0;
 123 }