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

   1 #include <stdio.h>
   2 #include <string.h>
   3 #include <inttypes.h>
   4 #include "proxmark3.h"
   5 #include "ui.h"
   6 #include "util.h"
   7 #include "graph.h"
   8 #include "cmdparser.h"
   9 #include "cmddata.h"
  10 #include "cmdmain.h"
  11 #include "cmdlf.h"
  12 #include "cmdlfviking.h"
  13 #include "lfdemod.h"
  14 static int CmdHelp(const char *Cmd);
  15
  16 int usage_lf_viking_clone(void){
  17         PrintAndLog("clone a Viking AM tag to a T55x7 tag.");
  18         PrintAndLog("Usage: lf viking clone <Card ID 16 bytes of hex number>");
  19         return 0;
  20 }
  21
  22 //by marshmellow
  23 //see ASKDemod for what args are accepted
  24 int CmdVikingDemod(const char *Cmd)
  25 {
  26         CmdLFRead("s");
  27         getSamples("30000",false);
  28
  29         if (!ASKDemod(Cmd, false, false, 1)) {
  30                 if (g_debugMode) PrintAndLog("ASKDemod failed");
  31                 return 0;
  32         }
  33         size_t size = DemodBufferLen;
  34
  35         int ans = VikingDemod_AM(DemodBuffer, &size);
  36         if (ans < 0) {
  37                 if (g_debugMode) PrintAndLog("Error Viking_Demod");
  38                 return 0;
  39         }
  40         //got a good demod
  41         uint32_t raw1 = bytebits_to_byte(DemodBuffer+ans, 32);
  42         uint32_t raw2 = bytebits_to_byte(DemodBuffer+ans+32, 32);
  43         uint32_t cardid = bytebits_to_byte(DemodBuffer+ans+24, 32);
  44         uint8_t checksum = bytebits_to_byte(DemodBuffer+ans+32+24, 8);
  45         PrintAndLog("Viking Tag Found: Card ID %08X, Checksum: %02X", cardid, checksum);
  46         PrintAndLog("Raw: %08X%08X", raw1,raw2);
  47         setDemodBuf(DemodBuffer+ans, 64, 0);
  48         return 1;
  49 }
  50
  51 int CmdVikingClone(const char *Cmd)
  52 {
  53     uint32_t b1,b2;
  54     // get the tag number 64 bits (8 bytes) in hex
  55     uint8_t id[8];
  56
  57         char cmdp = param_getchar(Cmd, 0);
  58         if (strlen(Cmd) < 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_viking_clone();
  59
  60         if (param_gethex(Cmd, 0, id, 16) == 1)
  61                 return usage_lf_viking_clone();
  62
  63     b1 = bytes_to_num(id, sizeof(uint32_t));
  64     b2 = bytes_to_num(id + sizeof(uint32_t), sizeof(uint32_t));
  65     UsbCommand c = {CMD_VIKING_CLONE_TAG,{b1,b2}};
  66         clearCommandBuffer();
  67     SendCommand(&c);
  68         //check for ACK?
  69     return 0;
  70 }
  71
  72 static command_t CommandTable[] =
  73 {
  74     {"help",    CmdHelp,                1, "This help"},
  75     {"demod",   CmdVikingDemod, 1, "Extract tag data"},
  76     {"clone",   CmdVikingClone, 1, "<16 digits card data>  clone viking tag"},
  77     {NULL, NULL, 0, NULL}
  78 };
  79
  80 int CmdLFViking(const char *Cmd)
  81 {
  82     CmdsParse(CommandTable, Cmd);
  83     return 0;
  84 }
  85
  86 int CmdHelp(const char *Cmd)
  87 {
  88     CmdsHelp(CommandTable);
  89     return 0;
  90 }