Updated the README.txt

[proxmark3-svn] / client / cmddata.c

diff --git a/client/cmddata.c b/client/cmddata.c
index a7b8048098e290e2a198a47e20237f8d8e74a51d..de564a69c94b387abb59a2b328ca389a451b7e28 100644 (file)
--- a/client/cmddata.c
+++ b/client/cmddata.c
@@ -17,8 +17,10 @@
 #include "ui.h"
 #include "graph.h"
 #include "cmdparser.h"
 #include "ui.h"
 #include "graph.h"
 #include "cmdparser.h"

+#include "util.h"

 #include "cmdmain.h"
 #include "cmddata.h"
 #include "cmdmain.h"
 #include "cmddata.h"

+#include "lfdemod.h"

 
 static int CmdHelp(const char *Cmd);
 
 
 static int CmdHelp(const char *Cmd);
 


@@ -68,17 +70,16 @@ int CmdAmp(const char *Cmd)
  * Arguments:
  * c : 0 or 1
  */
  * Arguments:
  * c : 0 or 1
  */

+ //this method is dependant on all highs and lows to be the same(or clipped)  this creates issues[marshmellow] it also ignores the clock

 int Cmdaskdemod(const char *Cmd)
 {
   int i;
   int c, high = 0, low = 0;
 
 int Cmdaskdemod(const char *Cmd)
 {
   int i;
   int c, high = 0, low = 0;
 

-  // TODO: complain if we do not give 2 arguments here !
-  // (AL - this doesn't make sense! we're only using one argument!!!)

   sscanf(Cmd, "%i", &c);
 
   /* Detect high and lows and clock */
   sscanf(Cmd, "%i", &c);
 
   /* Detect high and lows and clock */

-  // (AL - clock???)
+  // (AL - clock???) 

   for (i = 0; i < GraphTraceLen; ++i)
   {
     if (GraphBuffer[i] > high)
   for (i = 0; i < GraphTraceLen; ++i)
   {
     if (GraphBuffer[i] > high)


@@ -86,11 +87,13 @@ int Cmdaskdemod(const char *Cmd)
     else if (GraphBuffer[i] < low)
       low = GraphBuffer[i];
   }
     else if (GraphBuffer[i] < low)
       low = GraphBuffer[i];
   }

+  high=abs(high*.75);
+  low=abs(low*.75);

   if (c != 0 && c != 1) {
     PrintAndLog("Invalid argument: %s", Cmd);
     return 0;
   }
   if (c != 0 && c != 1) {
     PrintAndLog("Invalid argument: %s", Cmd);
     return 0;
   }

-
+  //prime loop

   if (GraphBuffer[0] > 0) {
     GraphBuffer[0] = 1-c;
   } else {
   if (GraphBuffer[0] > 0) {
     GraphBuffer[0] = 1-c;
   } else {


@@ -118,6 +121,243 @@ int Cmdaskdemod(const char *Cmd)
   return 0;
 }
 
   return 0;
 }
 

+void printBitStream(uint8_t BitStream[], uint32_t bitLen){
+  uint32_t i = 0;
+  if (bitLen<16) {
+    PrintAndLog("Too few bits found: %d",bitLen);
+    return;
+  }
+  if (bitLen>512) bitLen=512;
+   for (i = 0; i <= (bitLen-16); i+=16) {
+    PrintAndLog("%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i",
+      BitStream[i],
+      BitStream[i+1],
+      BitStream[i+2],
+      BitStream[i+3],
+      BitStream[i+4],
+      BitStream[i+5],
+      BitStream[i+6],
+      BitStream[i+7],
+      BitStream[i+8],
+      BitStream[i+9],
+      BitStream[i+10],
+      BitStream[i+11],
+      BitStream[i+12],
+      BitStream[i+13],
+      BitStream[i+14],
+      BitStream[i+15]);
+  }
+  return; 
+}
+void printEM410x(uint64_t id)
+{
+  if (id !=0){
+      uint64_t iii=1;
+      uint64_t id2lo=0; //id2hi=0,
+      uint32_t ii=0;
+      uint32_t i=0;
+      for (ii=5; ii>0;ii--){
+      for (i=0;i<8;i++){
+          id2lo=(id2lo<<1LL)|((id & (iii<<(i+((ii-1)*8))))>>(i+((ii-1)*8)));
+        }
+      }
+      //output em id
+      PrintAndLog("EM TAG ID    : %010llx", id);
+      PrintAndLog("Unique TAG ID: %010llx",  id2lo); //id2hi,
+      PrintAndLog("DEZ 8        : %08lld",id & 0xFFFFFF);
+      PrintAndLog("DEZ 10       : %010lld",id & 0xFFFFFF);
+      PrintAndLog("DEZ 5.5      : %05lld.%05lld",(id>>16LL) & 0xFFFF,(id & 0xFFFF));
+      PrintAndLog("DEZ 3.5A     : %03lld.%05lld",(id>>32ll),(id & 0xFFFF));
+      PrintAndLog("DEZ 14/IK2   : %014lld",id);
+      PrintAndLog("DEZ 15/IK3   : %015lld",id2lo);
+      PrintAndLog("Other        : %05lld_%03lld_%08lld",(id&0xFFFF),((id>>16LL) & 0xFF),(id & 0xFFFFFF));
+    }  
+    return;
+}
+
+int CmdEm410xDecode(const char *Cmd)
+{
+  uint64_t id=0;
+  uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
+  uint32_t i=0;
+  i=getFromGraphBuf(BitStream);
+  id = Em410xDecode(BitStream,i);
+  printEM410x(id);
+  if (id>0) return 1;
+      return 0;
+}
+
+//by marshmellow
+//takes 2 arguments - clock and invert both as integers 
+//attempts to demodulate ask while decoding manchester 
+//prints binary found and saves in graphbuffer for further commands
+int Cmdaskmandemod(const char *Cmd)
+{
+  int invert=0; 
+  int clk=0; 
+  uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
+  sscanf(Cmd, "%i %i", &clk, &invert);    
+  if (invert != 0 && invert != 1) {
+    PrintAndLog("Invalid argument: %s", Cmd);
+    return 0;
+  }
+  uint32_t BitLen = getFromGraphBuf(BitStream);
+
+  int errCnt=0;
+   errCnt = askmandemod(BitStream, &BitLen,&clk,&invert);
+  if (errCnt<0){  //if fatal error (or -1)
+    // PrintAndLog("no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt,invert,BitLen,clk); 
+    return 0;
+  } 
+  if (BitLen<16) return 0;
+  PrintAndLog("\nUsing Clock: %d - Invert: %d - Bits Found: %d",clk,invert,BitLen);
+
+  if (errCnt>0){
+    PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt);
+  }
+  PrintAndLog("ASK/Manchester decoded bitstream:");
+  // Now output the bitstream to the scrollback by line of 16 bits
+  printBitStream(BitStream,BitLen);
+  uint64_t lo =0;
+  lo = Em410xDecode(BitStream,BitLen);
+  if (lo>0){
+    //set GraphBuffer for clone or sim command
+    setGraphBuf(BitStream,BitLen); 
+    PrintAndLog("EM410x pattern found: ");
+  printEM410x(lo);
+  }
+  //if (BitLen>16) return 1;
+  return 0;
+}
+
+//by marshmellow
+//manchester decode
+//stricktly take 10 and 01 and convert to 0 and 1
+int Cmdmandecoderaw(const char *Cmd)
+{
+  int i =0;
+  int errCnt=0;
+  int bitnum=0;
+  uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
+  int high = 0, low = 0;
+  for (;i<GraphTraceLen;++i){
+    if (GraphBuffer[i]>high) high=GraphBuffer[i];
+    else if(GraphBuffer[i]<low) low=GraphBuffer[i];
+    BitStream[i]=GraphBuffer[i];
+  }
+  if (high>1 || low <0 ){
+    PrintAndLog("Error: please raw demod the wave first then mancheseter raw decode");
+    return 0;
+  }
+  bitnum=i;
+  errCnt=manrawdecode(BitStream,&bitnum);
+  if (errCnt>=20){
+    PrintAndLog("Too many errors: %d",errCnt);
+    return 0;
+  }
+  PrintAndLog("Manchester Decoded - # errors:%d - data:",errCnt);
+  printBitStream(BitStream,bitnum);
+  if (errCnt==0){
+    //put back in graphbuffer
+    ClearGraph(0);
+    for (i=0; i < bitnum; ++i){
+      GraphBuffer[i]=BitStream[i];
+    }
+    GraphTraceLen=bitnum;
+    RepaintGraphWindow();
+    uint64_t id = 0; 
+    id = Em410xDecode(BitStream,i);
+    printEM410x(id);     
+  }
+  return 1;
+}
+
+//by marshmellow
+//biphase decode
+//take 01 or 10 = 0 and 11 or 00 = 1
+//takes 1 argument "offset" default = 0 if 1 it will shift the decode by one bit
+//  since it is not like manchester and doesn't have an incorrect bit pattern we 
+//  cannot determine if our decode is correct or if it should be shifted by one bit
+//  the argument offset allows us to manually shift if the output is incorrect
+//  (better would be to demod and decode at the same time so we can distinguish large
+//    width waves vs small width waves to help the decode positioning) or askbiphdemod
+int CmdBiphaseDecodeRaw(const char *Cmd)
+{
+  int i = 0;
+  int errCnt=0;
+  int bitnum=0;
+  int offset=0;
+  int high=0, low=0;
+  sscanf(Cmd, "%i", &offset);    
+  uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
+  //get graphbuffer & high and low
+  for (;i<GraphTraceLen;++i){
+    if(GraphBuffer[i]>high)high=GraphBuffer[i];
+    else if(GraphBuffer[i]<low)low=GraphBuffer[i];
+    BitStream[i]=GraphBuffer[i];
+  }
+  if (high>1 || low <0){
+    PrintAndLog("Error: please raw demod the wave first then decode");
+  return 0;
+}
+  bitnum=i;
+  errCnt=BiphaseRawDecode(BitStream,&bitnum, offset);
+  if (errCnt>=20){
+    PrintAndLog("Too many errors attempting to decode: %d",errCnt);
+    return 0;
+  }
+  PrintAndLog("Biphase Decoded using offset: %d - # errors:%d - data:",offset,errCnt);
+  printBitStream(BitStream,bitnum);
+  PrintAndLog("\nif bitstream does not look right try offset=1");
+  return 1;
+}
+
+
+//by marshmellow
+//takes 2 arguments - clock and invert both as integers
+//attempts to demodulate ask only
+//prints binary found and saves in graphbuffer for further commands
+int Cmdaskrawdemod(const char *Cmd)
+{
+  uint32_t i;
+  int invert=0; 
+  int clk=0; 
+  uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
+  sscanf(Cmd, "%i %i", &clk, &invert);    
+  if (invert != 0 && invert != 1) {
+    PrintAndLog("Invalid argument: %s", Cmd);
+    return 0;
+  }
+  int BitLen = getFromGraphBuf(BitStream);
+  int errCnt=0;
+  errCnt = askrawdemod(BitStream, &BitLen,&clk,&invert);
+  if (errCnt==-1){  //throw away static - allow 1 and -1 (in case of threshold command first)
+    PrintAndLog("no data found"); 
+    return 0;
+  } 
+  if (BitLen<16) return 0;
+  PrintAndLog("Using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen);
+    //PrintAndLog("Data start pos:%d, lastBit:%d, stop pos:%d, numBits:%d",iii,lastBit,i,bitnum);
+    //move BitStream back to GraphBuffer
+    
+  ClearGraph(0);
+  for (i=0; i < BitLen; ++i){
+    GraphBuffer[i]=BitStream[i];
+  }
+  GraphTraceLen=BitLen;
+  RepaintGraphWindow();
+    
+    //output
+    if (errCnt>0){
+      PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt);
+    }
+  PrintAndLog("ASK demoded bitstream:");
+    // Now output the bitstream to the scrollback by line of 16 bits
+  printBitStream(BitStream,BitLen);
+  
+  return 1;
+}
+

 int CmdAutoCorr(const char *Cmd)
 {
   static int CorrelBuffer[MAX_GRAPH_TRACE_LEN];
 int CmdAutoCorr(const char *Cmd)
 {
   static int CorrelBuffer[MAX_GRAPH_TRACE_LEN];


@@ -256,14 +496,185 @@ int CmdDec(const char *Cmd)
 }
 
 /* Print our clock rate */
 }
 
 /* Print our clock rate */

+// uses data from graphbuffer 

 int CmdDetectClockRate(const char *Cmd)
 {
 int CmdDetectClockRate(const char *Cmd)
 {

-  int clock = DetectClock(0);
-  PrintAndLog("Auto-detected clock rate: %d", clock);
+  GetClock("",0,0);

   return 0;
 }
 
   return 0;
 }
 

-int CmdFSKdemod(const char *Cmd)
+//by marshmellow
+//fsk raw demod and print binary
+//takes 4 arguments - Clock, invert, rchigh, rclow
+//defaults: clock = 50, invert=0, rchigh=10, rclow=8 (RF/10 RF/8 (fsk2a))
+int CmdFSKrawdemod(const char *Cmd)
+{
+  //raw fsk demod no manchester decoding no start bit finding just get binary from wave
+  //set defaults
+  int rfLen = 50;
+  int invert=0;
+  int fchigh=10;
+  int fclow=8;
+  //set options from parameters entered with the command
+  sscanf(Cmd, "%i %i %i %i", &rfLen, &invert, &fchigh, &fclow);    
+  
+  if (strlen(Cmd)>0 && strlen(Cmd)<=2) {
+     //rfLen=param_get8(Cmd, 0); //if rfLen option only is used
+     if (rfLen==1){
+      invert=1;   //if invert option only is used
+      rfLen = 50;
+     } else if(rfLen==0) rfLen=50;
+  } 
+  PrintAndLog("Args invert: %d - Clock:%d - fchigh:%d - fclow: %d",invert,rfLen,fchigh, fclow);
+  uint32_t i=0;
+  uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
+  uint32_t BitLen = getFromGraphBuf(BitStream);
+  int size  = fskdemod(BitStream,BitLen,(uint8_t)rfLen,(uint8_t)invert,(uint8_t)fchigh,(uint8_t)fclow); 
+  if (size>0){
+  PrintAndLog("FSK decoded bitstream:");
+  ClearGraph(0);
+  for (i=0;i<size;++i){
+    GraphBuffer[i]=BitStream[i];
+  }
+  GraphTraceLen=size;
+  RepaintGraphWindow();
+  
+  // Now output the bitstream to the scrollback by line of 16 bits
+  if(size > (8*32)+2) size = (8*32)+2; //only output a max of 8 blocks of 32 bits  most tags will have full bit stream inside that sample size
+  printBitStream(BitStream,size);
+  } else{
+    PrintAndLog("no FSK data found");
+  }
+  return 0;
+}
+
+//by marshmellow (based on existing demod + holiman's refactor)
+//HID Prox demod - FSK RF/50 with preamble of 00011101 (then manchester encoded)
+//print full HID Prox ID and some bit format details if found
+int CmdFSKdemodHID(const char *Cmd)
+{
+  //raw fsk demod no manchester decoding no start bit finding just get binary from wave
+  uint32_t hi2=0, hi=0, lo=0;
+
+  uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
+  uint32_t BitLen = getFromGraphBuf(BitStream);
+  //get binary from fsk wave
+  size_t size  = HIDdemodFSK(BitStream,BitLen,&hi2,&hi,&lo); 
+  if (size<0){
+    PrintAndLog("Error demoding fsk");
+    return 0;
+      }
+  if (hi2==0 && hi==0 && lo==0) return 0;
+          if (hi2 != 0){ //extra large HID tags
+            PrintAndLog("TAG ID: %x%08x%08x (%d)",
+               (unsigned int) hi2, (unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF);
+    setGraphBuf(BitStream,BitLen);
+    return 1;
+          }
+          else {  //standard HID tags <38 bits
+            //Dbprintf("TAG ID: %x%08x (%d)",(unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF); //old print cmd
+    uint8_t fmtLen = 0;
+            uint32_t fc = 0;
+            uint32_t cardnum = 0;
+            if (((hi>>5)&1)==1){//if bit 38 is set then < 37 bit format is used
+              uint32_t lo2=0;
+              lo2=(((hi & 15) << 12) | (lo>>20)); //get bits 21-37 to check for format len bit
+              uint8_t idx3 = 1;
+              while(lo2>1){ //find last bit set to 1 (format len bit)
+                lo2=lo2>>1;
+                idx3++;
+              }
+      fmtLen =idx3+19;  
+              fc =0;
+              cardnum=0;
+      if(fmtLen==26){
+                cardnum = (lo>>1)&0xFFFF;
+                fc = (lo>>17)&0xFF;
+              }
+      if(fmtLen==37){
+                cardnum = (lo>>1)&0x7FFFF;
+                fc = ((hi&0xF)<<12)|(lo>>20);
+              }
+      if(fmtLen==34){
+                cardnum = (lo>>1)&0xFFFF;
+                fc= ((hi&1)<<15)|(lo>>17);
+              }
+      if(fmtLen==35){
+                cardnum = (lo>>1)&0xFFFFF;
+                fc = ((hi&1)<<11)|(lo>>21);
+              }
+            }
+            else { //if bit 38 is not set then 37 bit format is used
+      fmtLen= 37;
+              fc =0;
+              cardnum=0;
+      if(fmtLen==37){
+                cardnum = (lo>>1)&0x7FFFF;
+                fc = ((hi&0xF)<<12)|(lo>>20);
+              }
+            }
+            PrintAndLog("TAG ID: %x%08x (%d) - Format Len: %dbit - FC: %d - Card: %d",
+              (unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF,
+      (unsigned int) fmtLen, (unsigned int) fc, (unsigned int) cardnum);
+    setGraphBuf(BitStream,BitLen);
+    return 1;
+          }
+  return 0;
+}
+
+//by marshmellow
+//IO-Prox demod - FSK RF/64 with preamble of 000000001
+//print ioprox ID and some format details
+int CmdFSKdemodIO(const char *Cmd)
+{
+  //raw fsk demod no manchester decoding no start bit finding just get binary from wave
+  //set defaults
+  int idx=0; 
+  //something in graphbuffer
+  if (GraphTraceLen < 65) return 0;
+  uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
+  uint32_t BitLen = getFromGraphBuf(BitStream);
+  //get binary from fsk wave
+  idx = IOdemodFSK(BitStream,BitLen); 
+  if (idx<0){
+    //PrintAndLog("Error demoding fsk");
+    return 0;
+  }
+  if (idx==0){
+    //PrintAndLog("IO Prox Data not found - FSK Data:");
+    //if (BitLen > 92) printBitStream(BitStream,92);
+    return 0;
+  }
+    //Index map
+    //0           10          20          30          40          50          60
+    //|           |           |           |           |           |           |
+    //01234567 8 90123456 7 89012345 6 78901234 5 67890123 4 56789012 3 45678901 23
+    //-----------------------------------------------------------------------------
+    //00000000 0 11110000 1 facility 1 version* 1 code*one 1 code*two 1 ???????? 11
+    //
+    //XSF(version)facility:codeone+codetwo (raw)
+    //Handle the data
+  if (idx+64>BitLen) return 0;
+  PrintAndLog("%d%d%d%d%d%d%d%d %d",BitStream[idx],    BitStream[idx+1],  BitStream[idx+2], BitStream[idx+3], BitStream[idx+4], BitStream[idx+5], BitStream[idx+6], BitStream[idx+7], BitStream[idx+8]);
+  PrintAndLog("%d%d%d%d%d%d%d%d %d",BitStream[idx+9],  BitStream[idx+10], BitStream[idx+11],BitStream[idx+12],BitStream[idx+13],BitStream[idx+14],BitStream[idx+15],BitStream[idx+16],BitStream[idx+17]);       
+  PrintAndLog("%d%d%d%d%d%d%d%d %d facility",BitStream[idx+18], BitStream[idx+19], BitStream[idx+20],BitStream[idx+21],BitStream[idx+22],BitStream[idx+23],BitStream[idx+24],BitStream[idx+25],BitStream[idx+26]);
+  PrintAndLog("%d%d%d%d%d%d%d%d %d version",BitStream[idx+27], BitStream[idx+28], BitStream[idx+29],BitStream[idx+30],BitStream[idx+31],BitStream[idx+32],BitStream[idx+33],BitStream[idx+34],BitStream[idx+35]);
+  PrintAndLog("%d%d%d%d%d%d%d%d %d code1",BitStream[idx+36], BitStream[idx+37], BitStream[idx+38],BitStream[idx+39],BitStream[idx+40],BitStream[idx+41],BitStream[idx+42],BitStream[idx+43],BitStream[idx+44]);
+  PrintAndLog("%d%d%d%d%d%d%d%d %d code2",BitStream[idx+45], BitStream[idx+46], BitStream[idx+47],BitStream[idx+48],BitStream[idx+49],BitStream[idx+50],BitStream[idx+51],BitStream[idx+52],BitStream[idx+53]);
+  PrintAndLog("%d%d%d%d%d%d%d%d %d%d checksum",BitStream[idx+54],BitStream[idx+55],BitStream[idx+56],BitStream[idx+57],BitStream[idx+58],BitStream[idx+59],BitStream[idx+60],BitStream[idx+61],BitStream[idx+62],BitStream[idx+63]);
+
+  uint32_t code = bytebits_to_byte(BitStream+idx,32);
+  uint32_t code2 = bytebits_to_byte(BitStream+idx+32,32); 
+  uint8_t version = bytebits_to_byte(BitStream+idx+27,8); //14,4
+  uint8_t facilitycode = bytebits_to_byte(BitStream+idx+18,8) ;
+  uint16_t number = (bytebits_to_byte(BitStream+idx+36,8)<<8)|(bytebits_to_byte(BitStream+idx+45,8)); //36,9
+          
+  PrintAndLog("XSF(%02d)%02x:%05d (%08x%08x)",version,facilitycode,number,code,code2);    
+  setGraphBuf(BitStream,BitLen);
+  return 1;
+}
+
+int CmdFSKdemod(const char *Cmd) //old CmdFSKdemod needs updating

 {
   static const int LowTone[]  = {
     1,  1,  1,  1,  1, -1, -1, -1, -1, -1,
 {
   static const int LowTone[]  = {
     1,  1,  1,  1,  1, -1, -1, -1, -1, -1,


@@ -320,7 +731,7 @@ int CmdFSKdemod(const char *Cmd)
   GraphTraceLen -= (convLen + 16);
   RepaintGraphWindow();
 
   GraphTraceLen -= (convLen + 16);
   RepaintGraphWindow();
 

-  // Find bit-sync (3 lo followed by 3 high)
+  // Find bit-sync (3 lo followed by 3 high) (HID ONLY)

   int max = 0, maxPos = 0;
   for (i = 0; i < 6000; ++i) {
     int dec = 0;
   int max = 0, maxPos = 0;
   for (i = 0; i < 6000; ++i) {
     int dec = 0;


@@ -457,34 +868,90 @@ int CmdHpf(const char *Cmd)
 
 int CmdSamples(const char *Cmd)
 {
 
 int CmdSamples(const char *Cmd)
 {

-  int cnt = 0;
-  int n;
-  uint8_t got[40000];
-
-  n = strtol(Cmd, NULL, 0);
-  if (n == 0) n = 512;
-  if (n > sizeof(got)) n = sizeof(got);
+       uint8_t got[36440] = {0x00};
+       
+       int n = strtol(Cmd, NULL, 0);
+       if (n == 0) 
+               n = 20000;
+       if (n > sizeof(got)) 
+               n = sizeof(got);

   
   

-  PrintAndLog("Reading %d samples\n", n);
-  GetFromBigBuf(got,n,0);
-  WaitForResponse(CMD_ACK,NULL);
-  for (int j = 0; j < n; j++) {
-    GraphBuffer[cnt++] = ((int)got[j]) - 128;
-  }
+       PrintAndLog("Reading %d samples from device memory\n", n);
+       GetFromBigBuf(got,n,3560);
+       WaitForResponse(CMD_ACK,NULL);
+       for (int j = 0; j < n; ++j) {
+               GraphBuffer[j] = ((int)got[j]) - 128;
+       }
+       GraphTraceLen = n;
+       RepaintGraphWindow();
+       return 0;
+}
+
+int CmdTuneSamples(const char *Cmd)
+{
+       int timeout = 0;
+       printf("\nMeasuring antenna characteristics, please wait...");
+
+       UsbCommand c = {CMD_MEASURE_ANTENNA_TUNING};
+       SendCommand(&c);
+
+       UsbCommand resp;
+       while(!WaitForResponseTimeout(CMD_MEASURED_ANTENNA_TUNING,&resp,1000)) {
+               timeout++;
+               printf(".");
+               if (timeout > 7) {
+                       PrintAndLog("\nNo response from Proxmark. Aborting...");
+                       return 1;
+               }
+       }
+
+       int peakv, peakf;
+       int vLf125, vLf134, vHf;
+       vLf125 = resp.arg[0] & 0xffff;
+       vLf134 = resp.arg[0] >> 16;
+       vHf = resp.arg[1] & 0xffff;;
+       peakf = resp.arg[2] & 0xffff;
+       peakv = resp.arg[2] >> 16;
+       PrintAndLog("");
+       PrintAndLog("# LF antenna: %5.2f V @   125.00 kHz", vLf125/1000.0);
+       PrintAndLog("# LF antenna: %5.2f V @   134.00 kHz", vLf134/1000.0);
+       PrintAndLog("# LF optimal: %5.2f V @%9.2f kHz", peakv/1000.0, 12000.0/(peakf+1));
+       PrintAndLog("# HF antenna: %5.2f V @    13.56 MHz", vHf/1000.0);
+       if (peakv<2000)
+               PrintAndLog("# Your LF antenna is unusable.");
+       else if (peakv<10000)
+               PrintAndLog("# Your LF antenna is marginal.");
+       if (vHf<2000)
+               PrintAndLog("# Your HF antenna is unusable.");
+       else if (vHf<5000)
+               PrintAndLog("# Your HF antenna is marginal.");
+
+       for (int i = 0; i < 256; i++) {
+               GraphBuffer[i] = resp.d.asBytes[i] - 128;
+       }

   
   

-  PrintAndLog("Done!\n");
-  GraphTraceLen = n;
-  RepaintGraphWindow();
+       PrintAndLog("Done! Divisor 89 is 134khz, 95 is 125khz.\n");
+       PrintAndLog("\n");
+       GraphTraceLen = 256;
+       ShowGraphWindow();
+

   return 0;
 }
 
 int CmdLoad(const char *Cmd)
 {
   return 0;
 }
 
 int CmdLoad(const char *Cmd)
 {

-  FILE *f = fopen(Cmd, "r");
-  if (!f) {
-    PrintAndLog("couldn't open '%s'", Cmd);
-    return 0;
-  }
+   char filename[FILE_PATH_SIZE] = {0x00};
+   int len = 0;
+
+   len = strlen(Cmd);
+   if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE;
+   memcpy(filename, Cmd, len);
+       
+   FILE *f = fopen(filename, "r");
+   if (!f) {
+     PrintAndLog("couldn't open '%s'", filename);
+     return 0;
+   }

 
   GraphTraceLen = 0;
   char line[80];
 
   GraphTraceLen = 0;
   char line[80];


@@ -509,6 +976,15 @@ int CmdLtrim(const char *Cmd)
   RepaintGraphWindow();
   return 0;
 }
   RepaintGraphWindow();
   return 0;
 }

+int CmdRtrim(const char *Cmd)
+{
+  int ds = atoi(Cmd);
+
+  GraphTraceLen = ds;
+
+  RepaintGraphWindow();
+  return 0;
+}

 
 /*
  * Manchester demodulate a bitstream. The bitstream needs to be already in
 
 /*
  * Manchester demodulate a bitstream. The bitstream needs to be already in


@@ -555,7 +1031,7 @@ int CmdManchesterDemod(const char *Cmd)
 
   /* But it does not work if compiling on WIndows: therefore we just allocate a */
   /* large array */
 
   /* But it does not work if compiling on WIndows: therefore we just allocate a */
   /* large array */

-  uint8_t BitStream[MAX_GRAPH_TRACE_LEN];
+  uint8_t BitStream[MAX_GRAPH_TRACE_LEN] = {0x00};

 
   /* Detect high and lows */
   for (i = 0; i < GraphTraceLen; i++)
 
   /* Detect high and lows */
   for (i = 0; i < GraphTraceLen; i++)


@@ -567,8 +1043,7 @@ int CmdManchesterDemod(const char *Cmd)
   }
 
   /* Get our clock */
   }
 
   /* Get our clock */

-  clock = GetClock(Cmd, high, 1);
-
+  clock = GetClock(Cmd, high, 1); 

   int tolerance = clock/4;
 
   /* Detect first transition */
   int tolerance = clock/4;
 
   /* Detect first transition */


@@ -586,14 +1061,14 @@ int CmdManchesterDemod(const char *Cmd)
       break;
     }
   }
       break;
     }
   }

-
+  

   /* If we're not working with 1/0s, demod based off clock */
   if (high != 1)
   {
     bit = 0; /* We assume the 1st bit is zero, it may not be
               * the case: this routine (I think) has an init problem.
               * Ed.
   /* If we're not working with 1/0s, demod based off clock */
   if (high != 1)
   {
     bit = 0; /* We assume the 1st bit is zero, it may not be
               * the case: this routine (I think) has an init problem.
               * Ed.

-              */
+                         */

     for (; i < (int)(GraphTraceLen / clock); i++)
     {
       hithigh = 0;
     for (; i < (int)(GraphTraceLen / clock); i++)
     {
       hithigh = 0;


@@ -673,7 +1148,9 @@ int CmdManchesterDemod(const char *Cmd)
     // At this stage, we now have a bitstream of "01" ("1") or "10" ("0"), parse it into final decoded bitstream
     // Actually, we overwrite BitStream with the new decoded bitstream, we just need to be careful
     // to stop output at the final bitidx2 value, not bitidx
     // At this stage, we now have a bitstream of "01" ("1") or "10" ("0"), parse it into final decoded bitstream
     // Actually, we overwrite BitStream with the new decoded bitstream, we just need to be careful
     // to stop output at the final bitidx2 value, not bitidx

-    for (i = 0; i < bitidx; i += 2) {
+       
+       //http://www.proxmark.org/forum/viewtopic.php?id=403
+    for (i = 1; i < bitidx; i += 2) {

       if ((BitStream[i] == 0) && (BitStream[i+1] == 1)) {
         BitStream[bit2idx++] = 1 ^ invert;
     } else if ((BitStream[i] == 1) && (BitStream[i+1] == 0)) {
       if ((BitStream[i] == 0) && (BitStream[i+1] == 1)) {
         BitStream[bit2idx++] = 1 ^ invert;
     } else if ((BitStream[i] == 1) && (BitStream[i+1] == 0)) {


@@ -682,7 +1159,7 @@ int CmdManchesterDemod(const char *Cmd)
       // We cannot end up in this state, this means we are unsynchronized,
       // move up 1 bit:
       i++;
       // We cannot end up in this state, this means we are unsynchronized,
       // move up 1 bit:
       i++;

-        warnings++;
+      warnings++;

       PrintAndLog("Unsynchronized, resync...");
       PrintAndLog("(too many of those messages mean the stream is not Manchester encoded)");
 
       PrintAndLog("Unsynchronized, resync...");
       PrintAndLog("(too many of those messages mean the stream is not Manchester encoded)");
 


@@ -716,28 +1193,29 @@ int CmdManchesterDemod(const char *Cmd)
       BitStream[i+14],
       BitStream[i+15]);
   }
       BitStream[i+14],
       BitStream[i+15]);
   }

-  return 0;
+  return bit2idx;

 }
 
 /* Modulate our data into manchester */
 int CmdManchesterMod(const char *Cmd)
 {
   int i, j;
 }
 
 /* Modulate our data into manchester */
 int CmdManchesterMod(const char *Cmd)
 {
   int i, j;

-  int clock;

   int bit, lastbit, wave;
   int bit, lastbit, wave;

-
-  /* Get our clock */
-  clock = GetClock(Cmd, 0, 1);
-
+  int clock = GetClock(Cmd, 0, 1);
+  int clock1 = GetT55x7Clock( GraphBuffer, GraphTraceLen, 0 );
+  PrintAndLog("MAN MOD CLOCKS:  %d  ice %d", clock,clock1);
+  
+  int half = (int)(clock/2);
+  

   wave = 0;
   lastbit = 1;
   for (i = 0; i < (int)(GraphTraceLen / clock); i++)
   {
     bit = GraphBuffer[i * clock] ^ 1;
 
   wave = 0;
   lastbit = 1;
   for (i = 0; i < (int)(GraphTraceLen / clock); i++)
   {
     bit = GraphBuffer[i * clock] ^ 1;
 

-    for (j = 0; j < (int)(clock/2); j++)
+    for (j = 0; j < half; ++j)

       GraphBuffer[(i * clock) + j] = bit ^ lastbit ^ wave;
       GraphBuffer[(i * clock) + j] = bit ^ lastbit ^ wave;

-    for (j = (int)(clock/2); j < clock; j++)
+    for (j = half; j < clock; ++j)

       GraphBuffer[(i * clock) + j] = bit ^ lastbit ^ wave ^ 1;
 
     /* Keep track of how we start our wave and if we changed or not this time */
       GraphBuffer[(i * clock) + j] = bit ^ lastbit ^ wave ^ 1;
 
     /* Keep track of how we start our wave and if we changed or not this time */


@@ -779,9 +1257,17 @@ int CmdPlot(const char *Cmd)
 
 int CmdSave(const char *Cmd)
 {
 
 int CmdSave(const char *Cmd)
 {

-  FILE *f = fopen(Cmd, "w");
+   char filename[FILE_PATH_SIZE] = {0x00};
+   int len = 0;
+
+   len = strlen(Cmd);
+   if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE;
+   memcpy(filename, Cmd, len);
+   
+
+  FILE *f = fopen(filename, "w");

   if(!f) {
   if(!f) {

-    PrintAndLog("couldn't open '%s'", Cmd);
+    PrintAndLog("couldn't open '%s'", filename);

     return 0;
   }
   int i;
     return 0;
   }
   int i;


@@ -818,6 +1304,41 @@ int CmdThreshold(const char *Cmd)
   return 0;
 }
 
   return 0;
 }
 

+int CmdDirectionalThreshold(const char *Cmd)
+{
+       int8_t upThres = param_get8(Cmd, 0);
+       int8_t downThres = param_get8(Cmd, 1);
+  
+  printf("Applying Up Threshold: %d, Down Threshold: %d\n", upThres, downThres);
+  
+  int lastValue = GraphBuffer[0];
+  GraphBuffer[0] = 0; // Will be changed at the end, but init 0 as we adjust to last samples value if no threshold kicks in.
+  
+  for (int i = 1; i < GraphTraceLen; ++i) {
+    // Apply first threshold to samples heading up
+    if (GraphBuffer[i] >= upThres && GraphBuffer[i] > lastValue)
+    {
+      lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it.
+      GraphBuffer[i] = 1;
+    }
+    // Apply second threshold to samples heading down
+    else if (GraphBuffer[i] <= downThres && GraphBuffer[i] < lastValue)
+    {
+      lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it.
+      GraphBuffer[i] = -1;
+    }
+    else
+    {
+      lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it.
+      GraphBuffer[i] = GraphBuffer[i-1];
+
+    }
+  }
+  GraphBuffer[0] = GraphBuffer[1]; // Aline with first edited sample.
+  RepaintGraphWindow();
+  return 0;
+}
+

 int CmdZerocrossings(const char *Cmd)
 {
   // Zero-crossings aren't meaningful unless the signal is zero-mean.
 int CmdZerocrossings(const char *Cmd)
 {
   // Zero-crossings aren't meaningful unless the signal is zero-mean.


@@ -852,20 +1373,29 @@ static command_t CommandTable[] =
   {"help",          CmdHelp,            1, "This help"},
   {"amp",           CmdAmp,             1, "Amplify peaks"},
   {"askdemod",      Cmdaskdemod,        1, "<0 or 1> -- Attempt to demodulate simple ASK tags"},
   {"help",          CmdHelp,            1, "This help"},
   {"amp",           CmdAmp,             1, "Amplify peaks"},
   {"askdemod",      Cmdaskdemod,        1, "<0 or 1> -- Attempt to demodulate simple ASK tags"},

+  {"askmandemod",   Cmdaskmandemod,     1, "[clock] [invert<0 or 1>] -- Attempt to demodulate ASK/Manchester tags and output binary (args optional[clock will try Auto-detect])"},
+  {"askrawdemod",   Cmdaskrawdemod,     1, "[clock] [invert<0 or 1>] -- Attempt to demodulate ASK tags and output binary (args optional[clock will try Auto-detect])"},

   {"autocorr",      CmdAutoCorr,        1, "<window length> -- Autocorrelation over window"},
   {"autocorr",      CmdAutoCorr,        1, "<window length> -- Autocorrelation over window"},

+  {"biphaserawdecode",CmdBiphaseDecodeRaw,1,"[offset] Biphase decode binary stream already in graph buffer (offset = bit to start decode from)"},

   {"bitsamples",    CmdBitsamples,      0, "Get raw samples as bitstring"},
   {"bitstream",     CmdBitstream,       1, "[clock rate] -- Convert waveform into a bitstream"},
   {"buffclear",     CmdBuffClear,       1, "Clear sample buffer and graph window"},
   {"dec",           CmdDec,             1, "Decimate samples"},
   {"bitsamples",    CmdBitsamples,      0, "Get raw samples as bitstring"},
   {"bitstream",     CmdBitstream,       1, "[clock rate] -- Convert waveform into a bitstream"},
   {"buffclear",     CmdBuffClear,       1, "Clear sample buffer and graph window"},
   {"dec",           CmdDec,             1, "Decimate samples"},

-  {"detectclock",   CmdDetectClockRate, 1, "Detect clock rate"},
+  {"detectaskclock",CmdDetectClockRate, 1, "Detect ASK clock rate"},
+  {"dirthreshold",  CmdDirectionalThreshold,   1, "<thres up> <thres down> -- Max rising higher up-thres/ Min falling lower down-thres, keep rest as prev."},

   {"fskdemod",      CmdFSKdemod,        1, "Demodulate graph window as a HID FSK"},
   {"fskdemod",      CmdFSKdemod,        1, "Demodulate graph window as a HID FSK"},

+  {"fskhiddemod",   CmdFSKdemodHID,     1, "Demodulate graph window as a HID FSK using raw"},
+  {"fskiodemod",    CmdFSKdemodIO,      1, "Demodulate graph window as an IO Prox FSK using raw"},
+  {"fskrawdemod",   CmdFSKrawdemod,     1, "[clock rate] [invert] [rchigh] [rclow] Demodulate graph window from FSK to binary (clock = 50)(invert = 1 or 0)(rchigh = 10)(rclow=8)"},

   {"grid",          CmdGrid,            1, "<x> <y> -- overlay grid on graph window, use zero value to turn off either"},
   {"hexsamples",    CmdHexsamples,      0, "<bytes> [<offset>] -- Dump big buffer as hex bytes"},  
   {"hide",          CmdHide,            1, "Hide graph window"},
   {"hpf",           CmdHpf,             1, "Remove DC offset from trace"},
   {"load",          CmdLoad,            1, "<filename> -- Load trace (to graph window"},
   {"ltrim",         CmdLtrim,           1, "<samples> -- Trim samples from left of trace"},
   {"grid",          CmdGrid,            1, "<x> <y> -- overlay grid on graph window, use zero value to turn off either"},
   {"hexsamples",    CmdHexsamples,      0, "<bytes> [<offset>] -- Dump big buffer as hex bytes"},  
   {"hide",          CmdHide,            1, "Hide graph window"},
   {"hpf",           CmdHpf,             1, "Remove DC offset from trace"},
   {"load",          CmdLoad,            1, "<filename> -- Load trace (to graph window"},
   {"ltrim",         CmdLtrim,           1, "<samples> -- Trim samples from left of trace"},

+  {"rtrim",         CmdRtrim,           1, "<location to end trace> -- Trim samples from right of trace"},

   {"mandemod",      CmdManchesterDemod, 1, "[i] [clock rate] -- Manchester demodulate binary stream (option 'i' to invert output)"},
   {"mandemod",      CmdManchesterDemod, 1, "[i] [clock rate] -- Manchester demodulate binary stream (option 'i' to invert output)"},

+  {"manrawdecode",  Cmdmandecoderaw,    1, "Manchester decode binary stream already in graph buffer"},

   {"manmod",        CmdManchesterMod,   1, "[clock rate] -- Manchester modulate a binary stream"},
   {"norm",          CmdNorm,            1, "Normalize max/min to +/-500"},
   {"plot",          CmdPlot,            1, "Show graph window (hit 'h' in window for keystroke help)"},
   {"manmod",        CmdManchesterMod,   1, "[clock rate] -- Manchester modulate a binary stream"},
   {"norm",          CmdNorm,            1, "Normalize max/min to +/-500"},
   {"plot",          CmdPlot,            1, "Show graph window (hit 'h' in window for keystroke help)"},


@@ -873,6 +1403,7 @@ static command_t CommandTable[] =
   {"save",          CmdSave,            1, "<filename> -- Save trace (from graph window)"},
   {"scale",         CmdScale,           1, "<int> -- Set cursor display scale"},
   {"threshold",     CmdThreshold,       1, "<threshold> -- Maximize/minimize every value in the graph window depending on threshold"},
   {"save",          CmdSave,            1, "<filename> -- Save trace (from graph window)"},
   {"scale",         CmdScale,           1, "<int> -- Set cursor display scale"},
   {"threshold",     CmdThreshold,       1, "<threshold> -- Maximize/minimize every value in the graph window depending on threshold"},

+  {"tune",          CmdTuneSamples,     0, "Get hw tune samples for graph window"},

   {"zerocrossings", CmdZerocrossings,   1, "Count time between zero-crossings"},
   {NULL, NULL, 0, NULL}
 };
   {"zerocrossings", CmdZerocrossings,   1, "Count time between zero-crossings"},
   {NULL, NULL, 0, NULL}
 };