armsrc/Standalone/hf_tmudford.c

   1 //-----------------------------------------------------------------------------
   2 // Copyright (C) 2021 Tim Mudford <tim.mudford1@gmail.com>
   3 // Copyright (C) Proxmark3 contributors. See AUTHORS.md for details.
   4 //
   5 // This program is free software: you can redistribute it and/or modify
   6 // it under the terms of the GNU General Public License as published by
   7 // the Free Software Foundation, either version 3 of the License, or
   8 // (at your option) any later version.
   9 //
  10 // This program is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 // GNU General Public License for more details.
  14 //
  15 // See LICENSE.txt for the text of the license.
  16 //-----------------------------------------------------------------------------
  17 // main code for hf_tmudford
  18 // `hf_tmudford` Continuously scans for ISO15693 card UID and then emulates it.
  19 //-----------------------------------------------------------------------------
  20
  21 #include "standalone.h"
  22 #include "proxmark3_arm.h"
  23 #include "appmain.h"
  24 #include "fpgaloader.h"
  25 #include "util.h"
  26 #include "dbprint.h"
  27 #include "ticks.h"
  28
  29 #include "iso15693.h"
  30 #include "iso15.h"
  31
  32 #define STATE_READ 0
  33 #define STATE_EMUL 1
  34
  35 void ModInfo(void) {
  36     DbpString("HF TMUDFORD mode - Scans and emulates ISO15693 UID (Tim Mudford)");
  37 }
  38
  39 void RunMod(void) {
  40     StandAloneMode();
  41     Dbprintf(_YELLOW_("HF TMUDFORD mode started"));
  42     FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
  43
  44     for (;;) {
  45         WDT_HIT();
  46         if (data_available()) break;
  47
  48         SpinDelay(500);
  49
  50         // 0 = search, 1 = read, 2 = emul
  51         int state = STATE_READ;
  52         iso15_card_select_t card;
  53
  54         DbpString("Scanning...");
  55         int button_pressed = BUTTON_NO_CLICK;
  56         for (;;) {
  57             // Was our button held down or pressed?
  58             button_pressed = BUTTON_HELD(1000);
  59
  60             if (button_pressed != BUTTON_NO_CLICK || data_available())
  61                 break;
  62             else if (state == STATE_READ) {
  63                 Iso15693InitReader();
  64                 ReaderIso15693(&card);
  65
  66                 if (card.uidlen == 0) {
  67                     LED_D_OFF();
  68                     SpinDelay(500);
  69                     continue;
  70                 } else {
  71                     Dbprintf("Found card with UID: ");
  72                     Dbhexdump(card.uidlen, card.uid, 0);
  73                     state = STATE_EMUL;
  74                 }
  75             } else if (state == STATE_EMUL) {
  76                 Iso15693InitTag();
  77                 Dbprintf("Starting simulation, press " _GREEN_("pm3 button") " to stop and go back to search state.");
  78                 // default block size is 4..
  79                 // iceman:  which can be 4,8 all the way to 32
  80                 SimTagIso15693(card.uid, 4);
  81
  82                 state = STATE_READ;
  83             }
  84         }
  85         if (button_pressed  == BUTTON_HOLD)
  86             break;
  87     }
  88
  89     Dbprintf("-=[ exit ]=-");
  90     LEDsoff();
  91 }