ADD: Started to add a "LF GUARD CLONE/SIM" functionality. *not working* all thats...

[proxmark3-svn] / client / cmddata.c

diff --git a/client/cmddata.c b/client/cmddata.c
index aaff0302f901e964017904749f81d85627dd6f26..8e0668f734dcf030e49ef5d55d158495493744dc 100644 (file)
--- a/client/cmddata.c
+++ b/client/cmddata.c
@@ -58,11 +58,12 @@ int CmdSetDebugMode(const char *Cmd)
 }
 
 int usage_data_printdemodbuf(){
 }
 
 int usage_data_printdemodbuf(){

-       PrintAndLog("Usage: data printdemodbuffer x o <offset>");
+               PrintAndLog("Usage: data printdemodbuffer x o <offset> l <length>");

        PrintAndLog("Options:");
        PrintAndLog("       h          This help");
        PrintAndLog("       x          output in hex (omit for binary output)");
        PrintAndLog("       o <offset> enter offset in # of bits");
        PrintAndLog("Options:");
        PrintAndLog("       h          This help");
        PrintAndLog("       x          output in hex (omit for binary output)");
        PrintAndLog("       o <offset> enter offset in # of bits");

+               PrintAndLog("       l <length> enter length to print in # of bits or hex characters respectively");

        return 0;       
 }
 
        return 0;       
 }
 


@@ -87,7 +88,8 @@ int CmdPrintDemodBuff(const char *Cmd)
        char hex[512]={0x00};
        bool hexMode = false;
        bool errors = false;
        char hex[512]={0x00};
        bool hexMode = false;
        bool errors = false;

-       uint8_t offset = 0;
+       uint32_t offset = 0; //could be size_t but no param_get16...
+       uint32_t length = 512;

        char cmdp = 0;
        while(param_getchar(Cmd, cmdp) != 0x00)
        {
        char cmdp = 0;
        while(param_getchar(Cmd, cmdp) != 0x00)
        {


@@ -103,10 +105,16 @@ int CmdPrintDemodBuff(const char *Cmd)
                        break;
                case 'o':
                case 'O':
                        break;
                case 'o':
                case 'O':

-                       offset = param_get8(Cmd, cmdp+1);
+                       offset = param_get32ex(Cmd, cmdp+1, 0, 10);

                        if (!offset) errors = true;
                        cmdp += 2;
                        break;
                        if (!offset) errors = true;
                        cmdp += 2;
                        break;

+               case 'l':
+               case 'L':
+                       length = param_get32ex(Cmd, cmdp+1, 512, 10);
+                       if (!length) errors = true;
+                       cmdp += 2;
+                       break;

                default:
                        PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
                        errors = true;
                default:
                        PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
                        errors = true;


@@ -116,11 +124,12 @@ int CmdPrintDemodBuff(const char *Cmd)
        }
        //Validations
        if(errors) return usage_data_printdemodbuf();
        }
        //Validations
        if(errors) return usage_data_printdemodbuf();

-
-       int numBits = (DemodBufferLen-offset) & 0x7FC; //make sure we don't exceed our string
+       length = (length > (DemodBufferLen-offset)) ? DemodBufferLen-offset : length; 
+       int numBits = (length) & 0x00FFC; //make sure we don't exceed our string

 
        if (hexMode){
                char *buf = (char *) (DemodBuffer + offset);
 
        if (hexMode){
                char *buf = (char *) (DemodBuffer + offset);

+               numBits = (numBits > sizeof(hex)) ? sizeof(hex) : numBits;

                numBits = binarraytohex(hex, buf, numBits);
                if (numBits==0) return 0;
                PrintAndLog("DemodBuffer: %s",hex);             
                numBits = binarraytohex(hex, buf, numBits);
                if (numBits==0) return 0;
                PrintAndLog("DemodBuffer: %s",hex);             


@@ -268,7 +277,8 @@ int AskEm410xDecode(bool verbose, uint32_t *hi, uint64_t *lo )
 
 int AskEm410xDemod(const char *Cmd, uint32_t *hi, uint64_t *lo, bool verbose)
 {
 
 int AskEm410xDemod(const char *Cmd, uint32_t *hi, uint64_t *lo, bool verbose)
 {

-       if (!ASKDemod(Cmd, FALSE, FALSE, 1)) return 0;
+       bool st = TRUE;
+       if (!ASKDemod_ext(Cmd, FALSE, FALSE, 1, &st)) return 0;

        return AskEm410xDecode(verbose, hi, lo);
 }
 
        return AskEm410xDecode(verbose, hi, lo);
 }
 


@@ -303,8 +313,7 @@ int CmdAskEM410xDemod(const char *Cmd)
 //verbose will print results and demoding messages
 //emSearch will auto search for EM410x format in bitstream
 //askType switches decode: ask/raw = 0, ask/manchester = 1 
 //verbose will print results and demoding messages
 //emSearch will auto search for EM410x format in bitstream
 //askType switches decode: ask/raw = 0, ask/manchester = 1 

-int ASKDemod(const char *Cmd, bool verbose, bool emSearch, uint8_t askType)
-{
+int ASKDemod_ext(const char *Cmd, bool verbose, bool emSearch, uint8_t askType, bool *stCheck) {

        int invert=0;
        int clk=0;
        int maxErr=100;
        int invert=0;
        int clk=0;
        int maxErr=100;


@@ -313,7 +322,7 @@ int ASKDemod(const char *Cmd, bool verbose, bool emSearch, uint8_t askType)
        char amp = param_getchar(Cmd, 0);
        uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
        sscanf(Cmd, "%i %i %i %i %c", &clk, &invert, &maxErr, &maxLen, &amp);
        char amp = param_getchar(Cmd, 0);
        uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
        sscanf(Cmd, "%i %i %i %i %c", &clk, &invert, &maxErr, &maxLen, &amp);

-       if (!maxLen) maxLen = 512*64;
+       if (!maxLen) maxLen = BIGBUF_SIZE;

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


@@ -327,7 +336,14 @@ int ASKDemod(const char *Cmd, bool verbose, bool emSearch, uint8_t askType)
        if (g_debugMode) PrintAndLog("DEBUG: Bitlen from grphbuff: %d",BitLen);
        if (BitLen<255) return 0;
        if (maxLen<BitLen && maxLen != 0) BitLen = maxLen;
        if (g_debugMode) PrintAndLog("DEBUG: Bitlen from grphbuff: %d",BitLen);
        if (BitLen<255) return 0;
        if (maxLen<BitLen && maxLen != 0) BitLen = maxLen;

-
+       int foundclk = 0;
+       bool st = false;
+       if (*stCheck) st = DetectST(BitStream, &BitLen, &foundclk);
+       if (st) {
+               *stCheck = st;
+               clk = (clk == 0) ? foundclk : clk;
+               if (verbose || g_debugMode) PrintAndLog("\nFound Sequence Terminator");
+       }

        int errCnt = askdemod(BitStream, &BitLen, &clk, &invert, maxErr, askAmp, askType);
        if (errCnt<0 || BitLen<16){  //if fatal error (or -1)
                if (g_debugMode) PrintAndLog("DEBUG: no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt,invert,BitLen,clk);
        int errCnt = askdemod(BitStream, &BitLen, &clk, &invert, maxErr, askAmp, askType);
        if (errCnt<0 || BitLen<16){  //if fatal error (or -1)
                if (g_debugMode) PrintAndLog("DEBUG: no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt,invert,BitLen,clk);


@@ -356,6 +372,10 @@ int ASKDemod(const char *Cmd, bool verbose, bool emSearch, uint8_t askType)
        }
        return 1;
 }
        }
        return 1;
 }

+int ASKDemod(const char *Cmd, bool verbose, bool emSearch, uint8_t askType) {
+       bool st = false;
+       return ASKDemod_ext(Cmd, verbose, emSearch, askType, &st);
+}

 
 //by marshmellow
 //takes 5 arguments - clock, invert, maxErr, maxLen as integers and amplify as char == 'a'
 
 //by marshmellow
 //takes 5 arguments - clock, invert, maxErr, maxLen as integers and amplify as char == 'a'


@@ -365,7 +385,8 @@ int Cmdaskmandemod(const char *Cmd)
 {
        char cmdp = param_getchar(Cmd, 0);
        if (strlen(Cmd) > 25 || cmdp == 'h' || cmdp == 'H') {
 {
        char cmdp = param_getchar(Cmd, 0);
        if (strlen(Cmd) > 25 || cmdp == 'h' || cmdp == 'H') {

-               PrintAndLog("Usage:  data rawdemod am [clock] <invert> [maxError] [maxLen] [amplify]");
+               PrintAndLog("Usage:  data rawdemod am <s> [clock] <invert> [maxError] [maxLen] [amplify]");
+               PrintAndLog("     ['s'] optional, check for Sequence Terminator");

                PrintAndLog("     [set clock as integer] optional, if not set, autodetect");
                PrintAndLog("     <invert>, 1 to invert output");
                PrintAndLog("     [set maximum allowed errors], default = 100");
                PrintAndLog("     [set clock as integer] optional, if not set, autodetect");
                PrintAndLog("     <invert>, 1 to invert output");
                PrintAndLog("     [set maximum allowed errors], default = 100");


@@ -379,6 +400,12 @@ int Cmdaskmandemod(const char *Cmd)
                PrintAndLog("          : data rawdemod am 64 1 0 = demod an ask/manchester tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
                return 0;
        }
                PrintAndLog("          : data rawdemod am 64 1 0 = demod an ask/manchester tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
                return 0;
        }

+       bool st = TRUE;
+       if (Cmd[0]=='s') 
+               return ASKDemod_ext(Cmd++, TRUE, TRUE, 1, &st);
+       else if (Cmd[1] == 's')
+               return ASKDemod_ext(Cmd+=2, TRUE, TRUE, 1, &st);
+       else

        return ASKDemod(Cmd, TRUE, TRUE, 1);
 }
 
        return ASKDemod(Cmd, TRUE, TRUE, 1);
 }
 


@@ -586,7 +613,7 @@ int CmdG_Prox_II_Demod(const char *Cmd)
                if ((idx+1) % 5 == 0){
                        //spacer bit - should be 0
                        if (DemodBuffer[startIdx+idx] != 0) {
                if ((idx+1) % 5 == 0){
                        //spacer bit - should be 0
                        if (DemodBuffer[startIdx+idx] != 0) {

-                               if (g_debugMode) PrintAndLog("Error spacer not 0: %d, pos: %d",DemodBuffer[startIdx+idx],startIdx+idx);
+                               if (g_debugMode) PrintAndLog("Error spacer not 0: %u, pos: %u", (unsigned int)DemodBuffer[startIdx+idx],(unsigned int)(startIdx+idx));

                                return 0;
                        }
                        continue;
                                return 0;
                        }
                        continue;


@@ -601,14 +628,14 @@ int CmdG_Prox_II_Demod(const char *Cmd)
                ByteStream[ByteCnt] = ByteStream[ByteCnt] | (DemodBuffer[startIdx+idx]<<bitCnt);
                bitCnt++;
                if (bitCnt % 8 == 0){
                ByteStream[ByteCnt] = ByteStream[ByteCnt] | (DemodBuffer[startIdx+idx]<<bitCnt);
                bitCnt++;
                if (bitCnt % 8 == 0){

-                       if (g_debugMode) PrintAndLog("byte %d: %02x",ByteCnt,ByteStream[ByteCnt]);
+                       if (g_debugMode) PrintAndLog("byte %u: %02x", (unsigned int)ByteCnt, ByteStream[ByteCnt]);

                        bitCnt=0;
                        ByteCnt++;
                }
        }
        for (uint8_t i = 0; i < ByteCnt; i++){
                ByteStream[i] ^= xorKey; //xor
                        bitCnt=0;
                        ByteCnt++;
                }
        }
        for (uint8_t i = 0; i < ByteCnt; i++){
                ByteStream[i] ^= xorKey; //xor

-               if (g_debugMode) PrintAndLog("byte %d after xor: %02x", i, ByteStream[i]);
+               if (g_debugMode) PrintAndLog("byte %u after xor: %02x", (unsigned int)i, ByteStream[i]);

        }
        //now ByteStream contains 64 bytes of decrypted raw tag data
        // 
        }
        //now ByteStream contains 64 bytes of decrypted raw tag data
        // 


@@ -818,19 +845,20 @@ int CmdUndec(const char *Cmd)
                return 0;
        }
 
                return 0;
        }
 

-       uint8_t factor = param_get8ex(Cmd, 0,2, 10);
+       uint8_t factor = param_get8ex(Cmd, 0, 2, 10);

        //We have memory, don't we?
        int swap[MAX_GRAPH_TRACE_LEN] = { 0 };
        uint32_t g_index = 0 ,s_index = 0;
        //We have memory, don't we?
        int swap[MAX_GRAPH_TRACE_LEN] = { 0 };
        uint32_t g_index = 0 ,s_index = 0;

-       while(g_index < GraphTraceLen && s_index < MAX_GRAPH_TRACE_LEN)
+       while(g_index < GraphTraceLen && s_index + factor < MAX_GRAPH_TRACE_LEN)

        {
                int count = 0;
        {
                int count = 0;

-               for(count = 0; count < factor && s_index+count < MAX_GRAPH_TRACE_LEN; count ++)
+               for (count = 0; count < factor && s_index + count < MAX_GRAPH_TRACE_LEN; count++)

                        swap[s_index+count] = GraphBuffer[g_index];
                        swap[s_index+count] = GraphBuffer[g_index];

-               s_index+=count;
+               s_index += count;
+               g_index++;

        }
 
        }
 

-       memcpy(GraphBuffer,swap, s_index * sizeof(int));
+       memcpy(GraphBuffer, swap, s_index * sizeof(int));

        GraphTraceLen = s_index;
        RepaintGraphWindow();
        return 0;
        GraphTraceLen = s_index;
        RepaintGraphWindow();
        return 0;


@@ -910,19 +938,21 @@ int CmdDetectClockRate(const char *Cmd)
 
 char *GetFSKType(uint8_t fchigh, uint8_t fclow, uint8_t invert)
 {
 
 char *GetFSKType(uint8_t fchigh, uint8_t fclow, uint8_t invert)
 {

-       char *fskType;
+       static char fType[8];
+       memset(fType, 0x00, 8); 
+       char *fskType = fType;

        if (fchigh==10 && fclow==8){
                if (invert) //fsk2a
        if (fchigh==10 && fclow==8){
                if (invert) //fsk2a

-                       fskType = "FSK2a";
+                       memcpy(fskType, "FSK2a", 5);

                else //fsk2
                else //fsk2

-                       fskType = "FSK2";
+                       memcpy(fskType, "FSK2", 4);

        } else if (fchigh == 8 && fclow == 5) {
                if (invert)
        } else if (fchigh == 8 && fclow == 5) {
                if (invert)

-                       fskType = "FSK1";
+                       memcpy(fskType, "FSK1", 4);

                else
                else

-                       fskType = "FSK1a";
+                       memcpy(fskType, "FSK1a", 5);

        } else {
        } else {

-               fskType = "FSK??";
+               memcpy(fskType, "FSK??", 5);

        }
        return fskType;
 }
        }
        return fskType;
 }


@@ -934,20 +964,19 @@ char *GetFSKType(uint8_t fchigh, uint8_t fclow, uint8_t invert)
 int FSKrawDemod(const char *Cmd, bool verbose)
 {
        //raw fsk demod  no manchester decoding no start bit finding just get binary from wave
 int FSKrawDemod(const char *Cmd, bool verbose)
 {
        //raw fsk demod  no manchester decoding no start bit finding just get binary from wave

-       //set defaults
-       int rfLen = 0;
-       int invert = 0;
-       int fchigh = 0;
-       int fclow = 0;
+       uint8_t rfLen, invert, fchigh, fclow;

 
 

+       //set defaults

        //set options from parameters entered with the command
        //set options from parameters entered with the command

-       sscanf(Cmd, "%i %i %i %i", &rfLen, &invert, &fchigh, &fclow);
-
+       rfLen = param_get8(Cmd, 0);
+       invert = param_get8(Cmd, 1);
+       fchigh = param_get8(Cmd, 2);
+       fclow = param_get8(Cmd, 3);

        if (strlen(Cmd)>0 && strlen(Cmd)<=2) {
        if (strlen(Cmd)>0 && strlen(Cmd)<=2) {

-                if (rfLen==1){
+               if (rfLen==1) {

                        invert = 1;   //if invert option only is used
                        rfLen = 0;
                        invert = 1;   //if invert option only is used
                        rfLen = 0;

-                }
+               }

        }
 
        uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
        }
 
        uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};


@@ -955,34 +984,34 @@ int FSKrawDemod(const char *Cmd, bool verbose)
        if (BitLen==0) return 0;
        //get field clock lengths
        uint16_t fcs=0;
        if (BitLen==0) return 0;
        //get field clock lengths
        uint16_t fcs=0;

-       if (fchigh==0 || fclow == 0){
+       if (!fchigh || !fclow) {

                fcs = countFC(BitStream, BitLen, 1);
                fcs = countFC(BitStream, BitLen, 1);

-               if (fcs==0){
-                       fchigh=10;
-                       fclow=8;
-               }else{
-                       fchigh = (fcs >> 8) & 0xFF;
-                       fclow = fcs & 0xFF;
+               if (!fcs) {
+                       fchigh = 10;
+                       fclow = 8;
+               } else {
+                       fchigh = (fcs >> 8) & 0x00FF;
+                       fclow = fcs & 0x00FF;

                }
        }
        //get bit clock length
                }
        }
        //get bit clock length

-       if (rfLen==0){
+       if (!rfLen) {

                rfLen = detectFSKClk(BitStream, BitLen, fchigh, fclow);
                rfLen = detectFSKClk(BitStream, BitLen, fchigh, fclow);

-               if (rfLen == 0) rfLen = 50;
+               if (!rfLen) rfLen = 50;

        }
        }

-       int size = fskdemod(BitStream,BitLen,(uint8_t)rfLen,(uint8_t)invert,(uint8_t)fchigh,(uint8_t)fclow);
-       if (size>0){
-               setDemodBuf(BitStream,size,0);
+       int size = fskdemod(BitStream, BitLen, rfLen, invert, fchigh, fclow);
+       if (size > 0) {
+               setDemodBuf(BitStream, size, 0);

 
                // Now output the bitstream to the scrollback by line of 16 bits
                if (verbose || g_debugMode) {
 
                // Now output the bitstream to the scrollback by line of 16 bits
                if (verbose || g_debugMode) {

-                       PrintAndLog("\nUsing Clock:%d, invert:%d, fchigh:%d, fclow:%d", rfLen, invert, fchigh, fclow);
-                       PrintAndLog("%s decoded bitstream:",GetFSKType(fchigh,fclow,invert));
+                       PrintAndLog("\nUsing Clock:%u, invert:%u, fchigh:%u, fclow:%u", (unsigned int)rfLen,  (unsigned int)invert,  (unsigned int)fchigh,  (unsigned int)fclow);
+                       PrintAndLog("%s decoded bitstream:", GetFSKType(fchigh, fclow, invert));

                        printDemodBuff();
                }
 
                return 1;
                        printDemodBuff();
                }
 
                return 1;

-       } else{
+       } else {

                if (g_debugMode) PrintAndLog("no FSK data found");
        }
        return 0;
                if (g_debugMode) PrintAndLog("no FSK data found");
        }
        return 0;


@@ -1381,7 +1410,7 @@ int CmdFSKdemodPyramid(const char *Cmd)
        // s = format start bit, o = odd parity of last 7 bits
        // f = facility code, c = card number
        // w = wiegand parity, x = extra space for other formats
        // s = format start bit, o = odd parity of last 7 bits
        // f = facility code, c = card number
        // w = wiegand parity, x = extra space for other formats

-       // p = unknown checksum
+       // p = CRC8maxim checksum

        // (26 bit format shown)
 
        //get bytes for checksum calc
        // (26 bit format shown)
 
        //get bytes for checksum calc


@@ -1428,38 +1457,33 @@ int CmdFSKdemodPyramid(const char *Cmd)
        // s = format start bit, o = odd parity of last 7 bits
        // f = facility code, c = card number
        // w = wiegand parity, x = extra space for other formats
        // s = format start bit, o = odd parity of last 7 bits
        // f = facility code, c = card number
        // w = wiegand parity, x = extra space for other formats

-       // p = unknown checksum
+       // p = CRC8-Maxim checksum

        // (26 bit format shown)
 
        //find start bit to get fmtLen
        int j;
        // (26 bit format shown)
 
        //find start bit to get fmtLen
        int j;

-       for (j=0; j<size; j++){
+       for (j=0; j < size; ++j){

                if(BitStream[j]) break;
        }
                if(BitStream[j]) break;
        }

+       

        uint8_t fmtLen = size-j-8;
        uint32_t fc = 0;
        uint32_t cardnum = 0;
        uint32_t code1 = 0;
        uint8_t fmtLen = size-j-8;
        uint32_t fc = 0;
        uint32_t cardnum = 0;
        uint32_t code1 = 0;

-       if (fmtLen==26){
+       
+       if ( fmtLen == 26 ){

                fc = bytebits_to_byte(BitStream+73, 8);
                cardnum = bytebits_to_byte(BitStream+81, 16);
                code1 = bytebits_to_byte(BitStream+72,fmtLen);
                PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %08x%08x%08x%08x", fmtLen, fc, cardnum, code1, rawHi3, rawHi2, rawHi, rawLo);
                fc = bytebits_to_byte(BitStream+73, 8);
                cardnum = bytebits_to_byte(BitStream+81, 16);
                code1 = bytebits_to_byte(BitStream+72,fmtLen);
                PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %08x%08x%08x%08x", fmtLen, fc, cardnum, code1, rawHi3, rawHi2, rawHi, rawLo);

-       } else if (fmtLen==45){
-               fmtLen=42; //end = 10 bits not 7 like 26 bit fmt
+       } else if (fmtLen == 45) {
+               fmtLen = 42; //end = 10 bits not 7 like 26 bit fmt

                fc = bytebits_to_byte(BitStream+53, 10);
                cardnum = bytebits_to_byte(BitStream+63, 32);
                PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Raw: %08x%08x%08x%08x", fmtLen, fc, cardnum, rawHi3, rawHi2, rawHi, rawLo);
        } else {
                cardnum = bytebits_to_byte(BitStream+81, 16);
                fc = bytebits_to_byte(BitStream+53, 10);
                cardnum = bytebits_to_byte(BitStream+63, 32);
                PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Raw: %08x%08x%08x%08x", fmtLen, fc, cardnum, rawHi3, rawHi2, rawHi, rawLo);
        } else {
                cardnum = bytebits_to_byte(BitStream+81, 16);

-               if (fmtLen>32){
-                       //code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen-32);
-                       //code2 = bytebits_to_byte(BitStream+(size-32),32);
-                       PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %08x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo);
-               } else{
-                       //code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen);
-                       PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %08x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo);
-               }
+               PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %08x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo);

        }
        if (checksum == checkCS)
                PrintAndLog("Checksum %02x passed", checksum);
        }
        if (checksum == checkCS)
                PrintAndLog("Checksum %02x passed", checksum);


@@ -1987,7 +2011,11 @@ int getSamples(const char *Cmd, bool silent)
        GetFromBigBuf(got,n,0);
        PrintAndLog("Data fetched");
        UsbCommand response;
        GetFromBigBuf(got,n,0);
        PrintAndLog("Data fetched");
        UsbCommand response;

-       WaitForResponse(CMD_ACK, &response);
+       if ( !WaitForResponseTimeout(CMD_ACK, &response, 10000) ) {
+        PrintAndLog("timeout while waiting for reply.");
+               return 1;
+    }
+       

        uint8_t bits_per_sample = 8;
 
        //Old devices without this feature would send 0 at arg[0]
        uint8_t bits_per_sample = 8;
 
        //Old devices without this feature would send 0 at arg[0]


@@ -2030,11 +2058,11 @@ int CmdTuneSamples(const char *Cmd)
        int timeout = 0;
        printf("\nMeasuring antenna characteristics, please wait...");
 
        int timeout = 0;
        printf("\nMeasuring antenna characteristics, please wait...");
 

-       UsbCommand c = {CMD_MEASURE_ANTENNA_TUNING};
+       UsbCommand c = {CMD_MEASURE_ANTENNA_TUNING, {0,0,0}};
+       clearCommandBuffer();

        SendCommand(&c);
        SendCommand(&c);

-

        UsbCommand resp;
        UsbCommand resp;

-       while(!WaitForResponseTimeout(CMD_MEASURED_ANTENNA_TUNING,&resp,1000)) {
+       while(!WaitForResponseTimeout(CMD_MEASURED_ANTENNA_TUNING, &resp, 2000)) {

                timeout++;
                printf(".");
                if (timeout > 7) {
                timeout++;
                printf(".");
                if (timeout > 7) {


@@ -2080,7 +2108,6 @@ int CmdTuneSamples(const char *Cmd)
                ShowGraphWindow();
                RepaintGraphWindow();
        }
                ShowGraphWindow();
                RepaintGraphWindow();
        }

-

        return 0;
 }
 
        return 0;
 }
 


@@ -2096,7 +2123,7 @@ int CmdLoad(const char *Cmd)
        
        FILE *f = fopen(filename, "r");
        if (!f) {
        
        FILE *f = fopen(filename, "r");
        if (!f) {

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

                return 0;
        }
 
                return 0;
        }
 


@@ -2115,11 +2142,13 @@ int CmdLoad(const char *Cmd)
 int CmdLtrim(const char *Cmd)
 {
        int ds = atoi(Cmd);
 int CmdLtrim(const char *Cmd)
 {
        int ds = atoi(Cmd);

-       if (GraphTraceLen<=0) return 0;
+
+       if (GraphTraceLen <= 0) return 0;
+

        for (int i = ds; i < GraphTraceLen; ++i)
                GraphBuffer[i-ds] = GraphBuffer[i];
        for (int i = ds; i < GraphTraceLen; ++i)
                GraphBuffer[i-ds] = GraphBuffer[i];

-       GraphTraceLen -= ds;

 
 

+       GraphTraceLen -= ds;

        RepaintGraphWindow();
        return 0;
 }
        RepaintGraphWindow();
        return 0;
 }


@@ -2128,9 +2157,7 @@ int CmdLtrim(const char *Cmd)
 int CmdRtrim(const char *Cmd)
 {
        int ds = atoi(Cmd);
 int CmdRtrim(const char *Cmd)
 {
        int ds = atoi(Cmd);

-

        GraphTraceLen = ds;
        GraphTraceLen = ds;

-

        RepaintGraphWindow();
        return 0;
 }
        RepaintGraphWindow();
        return 0;
 }


@@ -2314,21 +2341,15 @@ int Cmdbin2hex(const char *Cmd)
 }
 
 int usage_data_hex2bin(){
 }
 
 int usage_data_hex2bin(){

-
-       PrintAndLog("Usage: data bin2hex <binary_digits>");
+       PrintAndLog("Usage: data hex2bin <hex_digits>");

        PrintAndLog("       This function will ignore all non-hexadecimal characters (but stop reading on whitespace)");
        return 0;
        PrintAndLog("       This function will ignore all non-hexadecimal characters (but stop reading on whitespace)");
        return 0;

-

 }
 
 int Cmdhex2bin(const char *Cmd)
 {
        int bg =0, en =0;
 }
 
 int Cmdhex2bin(const char *Cmd)
 {
        int bg =0, en =0;

-       if(param_getptr(Cmd, &bg, &en, 0))
-       {
-               return usage_data_hex2bin();
-       }
-
+       if(param_getptr(Cmd, &bg, &en, 0))  return usage_data_hex2bin();

 
        while(bg <= en )
        {
 
        while(bg <= en )
        {


@@ -2389,7 +2410,7 @@ static command_t CommandTable[] =
        {"manrawdecode",    Cmdmandecoderaw,    1, "[invert] [maxErr] -- Manchester decode binary stream in DemodBuffer"},
        {"norm",            CmdNorm,            1, "Normalize max/min to +/-128"},
        {"plot",            CmdPlot,            1, "Show graph window (hit 'h' in window for keystroke help)"},
        {"manrawdecode",    Cmdmandecoderaw,    1, "[invert] [maxErr] -- Manchester decode binary stream in DemodBuffer"},
        {"norm",            CmdNorm,            1, "Normalize max/min to +/-128"},
        {"plot",            CmdPlot,            1, "Show graph window (hit 'h' in window for keystroke help)"},

-       {"printdemodbuffer",CmdPrintDemodBuff,  1, "[x] [o] <offset> -- print the data in the DemodBuffer - 'x' for hex output"},
+       {"printdemodbuffer",CmdPrintDemodBuff,  1, "[x] [o] <offset> [l] <length> -- print the data in the DemodBuffer - 'x' for hex output"},

        {"pskindalademod",  CmdIndalaDecode,    1, "[clock] [invert<0|1>] -- Demodulate an indala tag (PSK1) from GraphBuffer (args optional)"},
        {"psknexwatchdemod",CmdPSKNexWatch,     1, "Demodulate a NexWatch tag (nexkey, quadrakey) (PSK1) from GraphBuffer"},
        {"rawdemod",        CmdRawDemod,        1, "[modulation] ... <options> -see help (h option) -- Demodulate the data in the GraphBuffer and output binary"},  
        {"pskindalademod",  CmdIndalaDecode,    1, "[clock] [invert<0|1>] -- Demodulate an indala tag (PSK1) from GraphBuffer (args optional)"},
        {"psknexwatchdemod",CmdPSKNexWatch,     1, "Demodulate a NexWatch tag (nexkey, quadrakey) (PSK1) from GraphBuffer"},
        {"rawdemod",        CmdRawDemod,        1, "[modulation] ... <options> -see help (h option) -- Demodulate the data in the GraphBuffer and output binary"},  


@@ -2405,8 +2426,8 @@ static command_t CommandTable[] =
        {NULL, NULL, 0, NULL}
 };
 
        {NULL, NULL, 0, NULL}
 };
 

-int CmdData(const char *Cmd)
-{
+int CmdData(const char *Cmd){
+       clearCommandBuffer();

        CmdsParse(CommandTable, Cmd);
        return 0;
 }
        CmdsParse(CommandTable, Cmd);
        return 0;
 }