X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/506672c48bdae1b045bb65c2939656806bc8be50..33a1fe9636ddc00cedfec34e0d8a77899ca4494c:/client/cmddata.c

diff --git a/client/cmddata.c b/client/cmddata.c
index 30546f11..2db1f8eb 100644
--- a/client/cmddata.c
+++ b/client/cmddata.c
@@ -8,23 +8,22 @@
 // Data and Graph commands
 //-----------------------------------------------------------------------------
 
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <limits.h>
-#include "proxmark3.h"
-#include "data.h"
-#include "ui.h"
-#include "graph.h"
-#include "cmdparser.h"
+#include <stdio.h>    // also included in util.h
+#include <string.h>   // also included in util.h
+#include <limits.h>   // for CmdNorm INT_MIN && INT_MAX
+#include "data.h"     // also included in util.h
+#include "cmddata.h"
 #include "util.h"
 #include "cmdmain.h"
-#include "cmddata.h"
-#include "lfdemod.h"
-#include "usb_cmd.h"
-#include "crc.h"
-#include "crc16.h"
-#include "loclass/cipherutils.h"
+#include "proxmark3.h"
+#include "ui.h"       // for show graph controls
+#include "graph.h"    // for graph data
+#include "cmdparser.h"// already included in cmdmain.h
+#include "usb_cmd.h"  // already included in cmdmain.h and proxmark3.h
+#include "lfdemod.h"  // for demod code
+#include "crc.h"      // for pyramid checksum maxim
+#include "crc16.h"    // for FDXB demod checksum
+#include "loclass/cipherutils.h" // for decimating samples in getsamples
 
 uint8_t DemodBuffer[MAX_DEMOD_BUF_LEN];
 uint8_t g_debugMode=0;
@@ -58,11 +57,12 @@ int CmdSetDebugMode(const char *Cmd)
 }
 
 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("       l <length> enter length to print in # of bits or hex characters respectively");
 		return 0;	
 }
 
@@ -87,7 +87,8 @@ int CmdPrintDemodBuff(const char *Cmd)
 	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)
 	{
@@ -103,10 +104,16 @@ int CmdPrintDemodBuff(const char *Cmd)
 			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;
+		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;
@@ -116,11 +123,12 @@ int CmdPrintDemodBuff(const char *Cmd)
 	}
 	//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);
+		numBits = (numBits > sizeof(hex)) ? sizeof(hex) : numBits;
 		numBits = binarraytohex(hex, buf, numBits);
 		if (numBits==0) return 0;
 		PrintAndLog("DemodBuffer: %s",hex);		
@@ -268,7 +276,8 @@ int AskEm410xDecode(bool verbose, uint32_t *hi, uint64_t *lo )
 
 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);
 }
 
@@ -303,17 +312,16 @@ 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 
-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 maxLen=0;
-	uint8_t askAmp = 0;
+	uint8_t askamp = 0;
 	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;
@@ -322,18 +330,28 @@ int ASKDemod(const char *Cmd, bool verbose, bool emSearch, uint8_t askType)
 		invert=1;
 		clk=0;
 	}
-	if (amp == 'a' || amp == 'A') askAmp=1; 
 	size_t BitLen = getFromGraphBuf(BitStream);
 	if (g_debugMode) PrintAndLog("DEBUG: Bitlen from grphbuff: %d",BitLen);
-	if (BitLen<255) return 0;
-	if (maxLen<BitLen && maxLen != 0) BitLen = maxLen;
-
-	int errCnt = askdemod(BitStream, &BitLen, &clk, &invert, maxErr, askAmp, askType);
+	if (BitLen < 255) return 0;
+	if (maxLen < BitLen && maxLen != 0) BitLen = maxLen;
+	int foundclk = 0;
+	//amp before ST check
+	if (amp == 'a' || amp == 'A') {
+		askAmp(BitStream, BitLen); 
+	}
+	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);
 		return 0;
 	}
-	if (errCnt>maxErr){
+	if (errCnt > maxErr){
 		if (g_debugMode) PrintAndLog("DEBUG: Too many errors found, errors:%d, bits:%d, clock:%d",errCnt, BitLen, clk);
 		return 0;
 	}
@@ -356,6 +374,10 @@ int ASKDemod(const char *Cmd, bool verbose, bool emSearch, uint8_t askType)
 	}
 	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'
@@ -364,8 +386,9 @@ int ASKDemod(const char *Cmd, bool verbose, bool emSearch, uint8_t askType)
 int Cmdaskmandemod(const char *Cmd)
 {
 	char cmdp = param_getchar(Cmd, 0);
-	if (strlen(Cmd) > 25 || cmdp == 'h' || cmdp == 'H') {
-		PrintAndLog("Usage:  data rawdemod am [clock] <invert> [maxError] [maxLen] [amplify]");
+	if (strlen(Cmd) > 45 || cmdp == 'h' || cmdp == 'H') {
+		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");
@@ -379,7 +402,13 @@ 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;
 	}
-	return ASKDemod(Cmd, TRUE, TRUE, 1);
+	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);
 }
 
 //by marshmellow
@@ -565,7 +594,7 @@ int Cmdaskbiphdemod(const char *Cmd)
 int CmdG_Prox_II_Demod(const char *Cmd)
 {
 	if (!ASKbiphaseDemod(Cmd, FALSE)){
-		if (g_debugMode) PrintAndLog("ASKbiphaseDemod failed 1st try");
+		if (g_debugMode) PrintAndLog("Error gProxII: ASKbiphaseDemod failed 1st try");
 		return 0;
 	}
 	size_t size = DemodBufferLen;
@@ -575,46 +604,32 @@ int CmdG_Prox_II_Demod(const char *Cmd)
 		if (g_debugMode) PrintAndLog("Error gProxII_Demod");
 		return 0;
 	}
-	//got a good demod
-	uint32_t ByteStream[65] = {0x00};
+	//got a good demod of 96 bits
+	uint8_t ByteStream[8] = {0x00};
 	uint8_t xorKey=0;
-	uint8_t keyCnt=0;
-	uint8_t bitCnt=0;
-	uint8_t ByteCnt=0;
-	size_t startIdx = ans + 6; //start after preamble
-	for (size_t idx = 0; idx<size-6; idx++){
-		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);
-				return 0;
-			}
-			continue;
-		} 
-		if (keyCnt<8){ //lsb first
-			xorKey = xorKey | (DemodBuffer[startIdx+idx]<<keyCnt);
-			keyCnt++;
-			if (keyCnt==8 && g_debugMode) PrintAndLog("xorKey Found: %02x", xorKey);
-			continue;
-		}
-		//lsb first
-		ByteStream[ByteCnt] = ByteStream[ByteCnt] | (DemodBuffer[startIdx+idx]<<bitCnt);
-		bitCnt++;
-		if (bitCnt % 8 == 0){
-			if (g_debugMode) PrintAndLog("byte %d: %02x",ByteCnt,ByteStream[ByteCnt]);
-			bitCnt=0;
-			ByteCnt++;
-		}
+	size_t startIdx = ans + 6; //start after 6 bit preamble
+
+	uint8_t bits_no_spacer[90];
+	//so as to not mess with raw DemodBuffer copy to a new sample array
+	memcpy(bits_no_spacer, DemodBuffer + startIdx, 90);
+	// remove the 18 (90/5=18) parity bits (down to 72 bits (96-6-18=72))
+	size_t bitLen = removeParity(bits_no_spacer, 0, 5, 3, 90); //source, startloc, paritylen, ptype, length_to_run
+	if (bitLen != 72) {
+		if (g_debugMode) PrintAndLog("Error gProxII: spacer removal did not produce 72 bits: %u, start: %u", bitLen, startIdx);
+		return 0;
 	}
-	for (uint8_t i = 0; i < ByteCnt; i++){
-		ByteStream[i] ^= xorKey; //xor
-		if (g_debugMode) PrintAndLog("byte %d after xor: %02x", i, ByteStream[i]);
+	// get key and then get all 8 bytes of payload decoded
+	xorKey = (uint8_t)bytebits_to_byteLSBF(bits_no_spacer, 8);
+	for (size_t idx = 0; idx < 8; idx++) {
+		ByteStream[idx] = ((uint8_t)bytebits_to_byteLSBF(bits_no_spacer+8 + (idx*8),8)) ^ xorKey;
+		if (g_debugMode) PrintAndLog("byte %u after xor: %02x", (unsigned int)idx, ByteStream[idx]);
 	}
-	//now ByteStream contains 64 bytes of decrypted raw tag data
+	//now ByteStream contains 8 Bytes (64 bits) of decrypted raw tag data
 	// 
 	uint8_t fmtLen = ByteStream[0]>>2;
 	uint32_t FC = 0;
 	uint32_t Card = 0;
+	//get raw 96 bits to print
 	uint32_t raw1 = bytebits_to_byte(DemodBuffer+ans,32);
 	uint32_t raw2 = bytebits_to_byte(DemodBuffer+ans+32, 32);
 	uint32_t raw3 = bytebits_to_byte(DemodBuffer+ans+64, 32);
@@ -622,13 +637,14 @@ int CmdG_Prox_II_Demod(const char *Cmd)
 	if (fmtLen==36){
 		FC = ((ByteStream[3] & 0x7F)<<7) | (ByteStream[4]>>1);
 		Card = ((ByteStream[4]&1)<<19) | (ByteStream[5]<<11) | (ByteStream[6]<<3) | (ByteStream[7]>>5);
-		PrintAndLog("G-Prox-II Found: FmtLen %d, FC %d, Card %d",fmtLen,FC,Card);
+		PrintAndLog("G-Prox-II Found: FmtLen %d, FC %u, Card %u", (int)fmtLen, FC, Card);
 	} else if(fmtLen==26){
 		FC = ((ByteStream[3] & 0x7F)<<1) | (ByteStream[4]>>7);
 		Card = ((ByteStream[4]&0x7F)<<9) | (ByteStream[5]<<1) | (ByteStream[6]>>7);
-		PrintAndLog("G-Prox-II Found: FmtLen %d, FC %d, Card %d",fmtLen,FC,Card);    
+		PrintAndLog("G-Prox-II Found: FmtLen %d, FC %u, Card %u", (int)fmtLen, FC, Card);
 	} else {
-		PrintAndLog("Unknown G-Prox-II Fmt Found: FmtLen %d",fmtLen);
+		PrintAndLog("Unknown G-Prox-II Fmt Found: FmtLen %d",(int)fmtLen);
+		PrintAndLog("Decoded Raw: %s", sprint_hex(ByteStream, 8)); 
 	}
 	PrintAndLog("Raw: %08x%08x%08x", raw1,raw2,raw3);
 	setDemodBuf(DemodBuffer+ans, 96, 0);
@@ -655,7 +671,7 @@ int CmdVikingDemod(const char *Cmd)
 	uint32_t raw2 = bytebits_to_byte(DemodBuffer+ans+32, 32);
 	uint32_t cardid = bytebits_to_byte(DemodBuffer+ans+24, 32);
 	uint8_t  checksum = bytebits_to_byte(DemodBuffer+ans+32+24, 8);
-	PrintAndLog("Viking Tag Found: Card ID %08X, Checksum: %02X", cardid, checksum);
+	PrintAndLog("Viking Tag Found: Card ID %08X, Checksum: %02X", cardid, (unsigned int) checksum);
 	PrintAndLog("Raw: %08X%08X", raw1,raw2);
 	setDemodBuf(DemodBuffer+ans, 64, 0);
 	return 1;
@@ -665,7 +681,7 @@ int CmdVikingDemod(const char *Cmd)
 int Cmdaskrawdemod(const char *Cmd)
 {
 	char cmdp = param_getchar(Cmd, 0);
-	if (strlen(Cmd) > 25 || cmdp == 'h' || cmdp == 'H') {
+	if (strlen(Cmd) > 35 || cmdp == 'h' || cmdp == 'H') {
 		PrintAndLog("Usage:  data rawdemod ar [clock] <invert> [maxError] [maxLen] [amplify]");
 		PrintAndLog("     [set clock as integer] optional, if not set, autodetect");
 		PrintAndLog("     <invert>, 1 to invert output");
@@ -821,16 +837,18 @@ int CmdUndec(const char *Cmd)
 	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;
-	while(g_index < GraphTraceLen && s_index < MAX_GRAPH_TRACE_LEN)
+	uint32_t g_index = 0, s_index = 0;
+	while(g_index < GraphTraceLen && s_index + factor < MAX_GRAPH_TRACE_LEN)
 	{
 		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];
-		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;
@@ -864,13 +882,15 @@ int CmdGraphShiftZero(const char *Cmd)
 int CmdAskEdgeDetect(const char *Cmd)
 {
 	int thresLen = 25;
+	int Last = 0;
 	sscanf(Cmd, "%i", &thresLen); 
 
 	for(int i = 1; i<GraphTraceLen; i++){
 		if (GraphBuffer[i]-GraphBuffer[i-1]>=thresLen) //large jump up
-			GraphBuffer[i-1] = 127;
+			Last = 127;
 		else if(GraphBuffer[i]-GraphBuffer[i-1]<=-1*thresLen) //large jump down
-			GraphBuffer[i-1] = -127;
+			Last = -127;
+		GraphBuffer[i-1] = Last;
 	}
 	RepaintGraphWindow();
 	return 0;
@@ -910,19 +930,21 @@ int CmdDetectClockRate(const char *Cmd)
 
 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
-			fskType = "FSK2a";
+			memcpy(fskType, "FSK2a", 5);
 		else //fsk2
-			fskType = "FSK2";
+			memcpy(fskType, "FSK2", 4);
 	} else if (fchigh == 8 && fclow == 5) {
 		if (invert)
-			fskType = "FSK1";
+			memcpy(fskType, "FSK1", 4);
 		else
-			fskType = "FSK1a";
+			memcpy(fskType, "FSK1a", 5);
 	} else {
-		fskType = "FSK??";
+		memcpy(fskType, "FSK??", 5);
 	}
 	return fskType;
 }
@@ -935,21 +957,19 @@ int FSKrawDemod(const char *Cmd, bool verbose)
 {
 	//raw fsk demod  no manchester decoding no start bit finding just get binary from wave
 	uint8_t rfLen, invert, fchigh, fclow;
-
 	//set defaults
 	//set options from parameters entered with the command
-	rfLen = param_get8ex(Cmd, 0, 0, 10);
-	invert = param_get8ex(Cmd, 1, 0, 10);
-	fchigh = param_get8ex(Cmd, 2, 0, 10);
-	fclow = param_get8ex(Cmd, 3, 0, 10);
+	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 (rfLen==1){
+		if (rfLen==1) {
 			invert = 1;   //if invert option only is used
 			rfLen = 0;
-		 }
+		}
 	}
-
 	uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
 	size_t BitLen = getFromGraphBuf(BitStream);
 	if (BitLen==0) return 0;
@@ -966,17 +986,17 @@ int FSKrawDemod(const char *Cmd, bool verbose)
 		}
 	}
 	//get bit clock length
-	if (!rfLen){
+	if (!rfLen) {
 		rfLen = detectFSKClk(BitStream, BitLen, fchigh, fclow);
 		if (!rfLen) rfLen = 50;
 	}
 	int size = fskdemod(BitStream, BitLen, rfLen, invert, fchigh, fclow);
-	if (size > 0){
+	if (size > 0) {
 		setDemodBuf(BitStream,size,0);
 
 		// Now output the bitstream to the scrollback by line of 16 bits
 		if (verbose || g_debugMode) {
-			PrintAndLog("\nUsing Clock:%u, invert:%u, fchigh:%u, fclow:%u", rfLen, invert, fchigh, fclow);
+			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();
 		}
@@ -995,7 +1015,7 @@ int FSKrawDemod(const char *Cmd, bool verbose)
 int CmdFSKrawdemod(const char *Cmd)
 {
 	char cmdp = param_getchar(Cmd, 0);
-	if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') {
+	if (strlen(Cmd) > 20 || cmdp == 'h' || cmdp == 'H') {
 		PrintAndLog("Usage:  data rawdemod fs [clock] <invert> [fchigh] [fclow]");
 		PrintAndLog("     [set clock as integer] optional, omit for autodetect.");
 		PrintAndLog("     <invert>, 1 for invert output, can be used even if the clock is omitted");
@@ -1249,7 +1269,7 @@ int CmdFSKdemodAWID(const char *Cmd)
 	//get binary from fsk wave
 	int idx = AWIDdemodFSK(BitStream, &size);
 	if (idx<=0){
-		if (g_debugMode==1){
+		if (g_debugMode){
 			if (idx == -1)
 				PrintAndLog("DEBUG: Error - not enough samples");
 			else if (idx == -2)
@@ -1287,7 +1307,7 @@ int CmdFSKdemodAWID(const char *Cmd)
 
 	size = removeParity(BitStream, idx+8, 4, 1, 88);
 	if (size != 66){
-		if (g_debugMode==1) PrintAndLog("DEBUG: Error - at parity check-tag size does not match AWID format");
+		if (g_debugMode) PrintAndLog("DEBUG: Error - at parity check-tag size does not match AWID format");
 		return 0;
 	}
 	// ok valid card found!
@@ -1347,7 +1367,7 @@ int CmdFSKdemodPyramid(const char *Cmd)
 	//get binary from fsk wave
 	int idx = PyramiddemodFSK(BitStream, &size);
 	if (idx < 0){
-		if (g_debugMode==1){
+		if (g_debugMode){
 			if (idx == -5)
 				PrintAndLog("DEBUG: Error - not enough samples");
 			else if (idx == -1)
@@ -1403,7 +1423,7 @@ int CmdFSKdemodPyramid(const char *Cmd)
 
 	size = removeParity(BitStream, idx+8, 8, 1, 120);
 	if (size != 105){
-		if (g_debugMode==1) 
+		if (g_debugMode) 
 			PrintAndLog("DEBUG: Error at parity check - tag size does not match Pyramid format, SIZE: %d, IDX: %d, hi3: %x",size, idx, rawHi3);
 		return 0;
 	}
@@ -1626,21 +1646,21 @@ int CmdIndalaDecode(const char *Cmd)
 	}
 
 	if (!ans){
-		if (g_debugMode==1) 
+		if (g_debugMode) 
 			PrintAndLog("Error1: %d",ans);
 		return 0;
 	}
 	uint8_t invert=0;
 	size_t size = DemodBufferLen;
-	size_t startIdx = indala26decode(DemodBuffer, &size, &invert);
-	if (startIdx < 1 || size > 224) {
-		if (g_debugMode==1)
+	int startIdx = indala26decode(DemodBuffer, &size, &invert);
+	if (startIdx < 0 || size > 224) {
+		if (g_debugMode)
 			PrintAndLog("Error2: %d",ans);
 		return -1;
 	}
-	setDemodBuf(DemodBuffer, size, startIdx);
+	setDemodBuf(DemodBuffer, size, (size_t)startIdx);
 	if (invert)
-		if (g_debugMode==1)
+		if (g_debugMode)
 			PrintAndLog("Had to invert bits");
 
 	PrintAndLog("BitLen: %d",DemodBufferLen);
@@ -1752,7 +1772,7 @@ int NRZrawDemod(const char *Cmd, bool verbose)
 int CmdNRZrawDemod(const char *Cmd)
 {
 	char cmdp = param_getchar(Cmd, 0);
-	if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') {
+	if (strlen(Cmd) > 16 || cmdp == 'h' || cmdp == 'H') {
 		PrintAndLog("Usage:  data rawdemod nr [clock] <0|1> [maxError]");
 		PrintAndLog("     [set clock as integer] optional, if not set, autodetect.");
 		PrintAndLog("     <invert>, 1 for invert output");
@@ -1776,7 +1796,7 @@ int CmdPSK1rawDemod(const char *Cmd)
 {
 	int ans;
 	char cmdp = param_getchar(Cmd, 0);
-	if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') {
+	if (strlen(Cmd) > 16 || cmdp == 'h' || cmdp == 'H') {
 		PrintAndLog("Usage:  data rawdemod p1 [clock] <0|1> [maxError]");
 		PrintAndLog("     [set clock as integer] optional, if not set, autodetect.");
 		PrintAndLog("     <invert>, 1 for invert output");
@@ -1808,7 +1828,7 @@ int CmdPSK2rawDemod(const char *Cmd)
 {
 	int ans=0;
 	char cmdp = param_getchar(Cmd, 0);
-	if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') {
+	if (strlen(Cmd) > 16 || cmdp == 'h' || cmdp == 'H') {
 		PrintAndLog("Usage:  data rawdemod p2 [clock] <0|1> [maxError]");
 		PrintAndLog("     [set clock as integer] optional, if not set, autodetect.");
 		PrintAndLog("     <invert>, 1 for invert output");
@@ -1838,7 +1858,7 @@ int CmdRawDemod(const char *Cmd)
 {
 	char cmdp = Cmd[0]; //param_getchar(Cmd, 0);
 
-	if (strlen(Cmd) > 20 || cmdp == 'h' || cmdp == 'H' || strlen(Cmd)<2) {
+	if (strlen(Cmd) > 35 || cmdp == 'h' || cmdp == 'H' || strlen(Cmd)<2) {
 		PrintAndLog("Usage:  data rawdemod [modulation] <help>|<options>");
 		PrintAndLog("   [modulation] as 2 char, 'ab' for ask/biphase, 'am' for ask/manchester, 'ar' for ask/raw, 'fs' for fsk, ...");		
 		PrintAndLog("         'nr' for nrz/direct, 'p1' for psk1, 'p2' for psk2");
@@ -2021,10 +2041,20 @@ int CmdSamples(const char *Cmd)
 
 int CmdTuneSamples(const char *Cmd)
 {
-	int timeout = 0;
+	int timeout = 0, arg = FLAG_TUNE_ALL;
+
+	if(*Cmd == 'l') {
+	  arg = FLAG_TUNE_LF;
+	} else if (*Cmd == 'h') {
+	  arg = FLAG_TUNE_HF;
+	} else if (*Cmd != '\0') {
+	  PrintAndLog("use 'tune' or 'tune l' or 'tune h'");
+	  return 0;
+	}
+
 	printf("\nMeasuring antenna characteristics, please wait...");
 
-	UsbCommand c = {CMD_MEASURE_ANTENNA_TUNING};
+	UsbCommand c = {CMD_MEASURE_ANTENNA_TUNING, {arg, 0, 0}};
 	SendCommand(&c);
 
 	UsbCommand resp;
@@ -2307,9 +2337,8 @@ int Cmdbin2hex(const char *Cmd)
 	return 0;
 }
 
-int usage_data_hex2bin(){
-
-	PrintAndLog("Usage: data bin2hex <binary_digits>");
+int usage_data_hex2bin() {
+	PrintAndLog("Usage: data hex2bin <hex_digits>");
 	PrintAndLog("       This function will ignore all non-hexadecimal characters (but stop reading on whitespace)");
 	return 0;
 
@@ -2383,7 +2412,7 @@ 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)"},
-	{"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"},