X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/c188b1b9b24b65a60c594364b474edba7c4ab8a2..76a608af8e342b50718cfd0e53c0fa932304dbd9:/armsrc/appmain.c

diff --git a/armsrc/appmain.c b/armsrc/appmain.c
index 4cbf5acd..ee6ab7fb 100644
--- a/armsrc/appmain.c
+++ b/armsrc/appmain.c
@@ -9,24 +9,18 @@
 // The main application code. This is the first thing called after start.c
 // executes.
 //-----------------------------------------------------------------------------
-
+#include <stdarg.h>
 #include "usb_cdc.h"
-#include "cmd.h"
-
 #include "proxmark3.h"
 #include "apps.h"
 #include "util.h"
 #include "printf.h"
 #include "string.h"
-
-#include <stdarg.h>
-
 #include "legicrf.h"
-#include <hitag2.h>
 #include "lfsampling.h"
 #include "BigBuf.h"
 #include "mifareutil.h"
-#include "pcf7931.h"
+
 #ifdef WITH_LCD
  #include "LCD.h"
 #endif
@@ -37,8 +31,6 @@
  #include "protocols.h"
 #endif
 
-#define abs(x) ( ((x)<0) ? -(x) : (x) )
-
 //=============================================================================
 // A buffer where we can queue things up to be sent through the FPGA, for
 // any purpose (fake tag, as reader, whatever). We go MSB first, since that
@@ -57,19 +49,17 @@ void ToSendReset(void)
 	ToSendBit = 8;
 }
 
-void ToSendStuffBit(int b)
-{
+void ToSendStuffBit(int b) {
 	if(ToSendBit >= 8) {
-		ToSendMax++;
+		++ToSendMax;
 		ToSend[ToSendMax] = 0;
 		ToSendBit = 0;
 	}
 
-	if(b) {
+	if(b)
 		ToSend[ToSendMax] |= (1 << (7 - ToSendBit));
-	}
 
-	ToSendBit++;
+	++ToSendBit;
 
 	if(ToSendMax >= sizeof(ToSend)) {
 		ToSendBit = 0;
@@ -77,26 +67,66 @@ void ToSendStuffBit(int b)
 	}
 }
 
+void PrintToSendBuffer(void){
+	DbpString("Printing ToSendBuffer:");
+	Dbhexdump(ToSendMax, ToSend, 0);
+}
+
+void print_result(char *name, uint8_t *buf, size_t len) {
+	uint8_t *p = buf;
+
+	if ( len % 16 == 0 ) {
+		for(; p-buf < len; p += 16)
+			Dbprintf("[%s:%d/%d] %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x",
+				name,
+				p-buf,
+				len,
+				p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7],p[8], p[9], p[10], p[11], p[12], p[13], p[14], p[15]
+			);
+	}
+	else {
+		for(; p-buf < len; p += 8)
+			Dbprintf("[%s:%d/%d] %02x %02x %02x %02x %02x %02x %02x %02x",
+				name,
+				p-buf,
+				len,
+				p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7]);
+	}
+}
+
 //=============================================================================
 // Debug print functions, to go out over USB, to the usual PC-side client.
 //=============================================================================
 
-void DbpString(char *str)
-{
-  byte_t len = strlen(str);
-  cmd_send(CMD_DEBUG_PRINT_STRING,len,0,0,(byte_t*)str,len);
+void DbpStringEx(char *str, uint32_t cmd){
+	byte_t len = strlen(str);
+	cmd_send(CMD_DEBUG_PRINT_STRING,len, cmd,0,(byte_t*)str,len);
+}
+
+void DbpString(char *str) {
+	DbpStringEx(str, 0);
 }
 
 #if 0
-void DbpIntegers(int x1, int x2, int x3)
-{
-  cmd_send(CMD_DEBUG_PRINT_INTEGERS,x1,x2,x3,0,0);
+void DbpIntegers(int x1, int x2, int x3) {
+	cmd_send(CMD_DEBUG_PRINT_INTEGERS,x1,x2,x3,0,0);
 }
 #endif
+void DbprintfEx(uint32_t cmd, const char *fmt, ...) {
+	// should probably limit size here; oh well, let's just use a big buffer
+	char output_string[128] = {0x00};
+	va_list ap;
+
+	va_start(ap, fmt);
+	kvsprintf(fmt, output_string, 10, ap);
+	va_end(ap);
+
+	DbpStringEx(output_string, cmd);
+}
 
 void Dbprintf(const char *fmt, ...) {
-// should probably limit size here; oh well, let's just use a big buffer
-	char output_string[128];
+	// should probably limit size here; oh well, let's just use a big buffer
+	char output_string[128] = {0x00};
 	va_list ap;
 
 	va_start(ap, fmt);
@@ -108,28 +138,27 @@ void Dbprintf(const char *fmt, ...) {
 
 // prints HEX & ASCII
 void Dbhexdump(int len, uint8_t *d, bool bAsci) {
-	int l=0,i;
+	int l=0, i;
 	char ascii[9];
     
 	while (len>0) {
-		if (len>8) l=8;
-		else l=len;
+
+		l = (len>8) ? 8 : len;
 		
 		memcpy(ascii,d,l);
 		ascii[l]=0;
 		
 		// filter safe ascii
-		for (i=0;i<l;i++)
+		for (i=0; i<l; ++i)
 			if (ascii[i]<32 || ascii[i]>126) ascii[i]='.';
         
-		if (bAsci) {
+		if (bAsci)
 			Dbprintf("%-8s %*D",ascii,l,d," ");
-		} else {
+		else
 			Dbprintf("%*D",l,d," ");
-		}
         
-		len-=8;
-		d+=8;		
+		len -= 8;
+		d += 8;		
 	}
 }
 
@@ -163,31 +192,29 @@ static int ReadAdc(int ch)
 
 	AT91C_BASE_ADC->ADC_CR = AT91C_ADC_START;
 
-	while(!(AT91C_BASE_ADC->ADC_SR & ADC_END_OF_CONVERSION(ch)))
-		;
+	while (!(AT91C_BASE_ADC->ADC_SR & ADC_END_OF_CONVERSION(ch))) ;
+	
 	d = AT91C_BASE_ADC->ADC_CDR[ch];
-
 	return d;
 }
 
 int AvgAdc(int ch) // was static - merlok
 {
-	int i;
-	int a = 0;
-
-	for(i = 0; i < 32; i++) {
+	int i, a = 0;
+	for(i = 0; i < 32; ++i)
 		a += ReadAdc(ch);
-	}
 
 	return (a + 15) >> 5;
 }
 
-void MeasureAntennaTuning(void)
-{
+
+void MeasureAntennaTuning(void) {
+
 	uint8_t LF_Results[256];
-	int i, adcval = 0, peak = 0, peakv = 0, peakf = 0; //ptr = 0 
+	int i, adcval = 0, peak = 0, peakv = 0, peakf = 0;
 	int vLf125 = 0, vLf134 = 0, vHf = 0;	// in mV
 
+	memset(LF_Results, 0, sizeof(LF_Results));
 	LED_B_ON();
 
 /*
@@ -201,25 +228,23 @@ void MeasureAntennaTuning(void)
   
   	FpgaDownloadAndGo(FPGA_BITSTREAM_LF);
 	FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD);
-	for (i=255; i>=19; i--) {
-    WDT_HIT();
+		
+	for  (i = 255; i >= 19; i--) {
+		WDT_HIT();
 		FpgaSendCommand(FPGA_CMD_SET_DIVISOR, i);
 		SpinDelay(20);
 		adcval = ((MAX_ADC_LF_VOLTAGE * AvgAdc(ADC_CHAN_LF)) >> 10);
 		if (i==95) 	vLf125 = adcval; // voltage at 125Khz
 		if (i==89) 	vLf134 = adcval; // voltage at 134Khz
 
-		LF_Results[i] = adcval>>8; // scale int to fit in byte for graphing purposes
+		LF_Results[i] = adcval >> 8; // scale int to fit in byte for graphing purposes
 		if(LF_Results[i] > peak) {
 			peakv = adcval;
 			peak = LF_Results[i];
 			peakf = i;
-			//ptr = i;
 		}
 	}
 
-	for (i=18; i >= 0; i--) LF_Results[i] = 0;
-	
 	LED_A_ON();
 	// Let the FPGA drive the high-frequency antenna around 13.56 MHz.
 	FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
@@ -227,39 +252,29 @@ void MeasureAntennaTuning(void)
 	SpinDelay(20);
 	vHf = (MAX_ADC_HF_VOLTAGE * AvgAdc(ADC_CHAN_HF)) >> 10;
 
-	cmd_send(CMD_MEASURED_ANTENNA_TUNING, vLf125 | (vLf134<<16), vHf, peakf | (peakv<<16), LF_Results, 256);
+	cmd_send(CMD_MEASURED_ANTENNA_TUNING, vLf125 | (vLf134 << 16), vHf, peakf | (peakv << 16), LF_Results, 256);
 	FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
-	LED_A_OFF();
-	LED_B_OFF();
-  return;
+	LEDsoff();
 }
 
-void MeasureAntennaTuningHf(void)
-{
+void MeasureAntennaTuningHf(void) {
 	int vHf = 0;	// in mV
-
-	DbpString("Measuring HF antenna, press button to exit");
-
 	// Let the FPGA drive the high-frequency antenna around 13.56 MHz.
 	FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
 	FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR);
 
-	for (;;) {
+	while ( !BUTTON_PRESS() ){
 		SpinDelay(20);
 		vHf = (MAX_ADC_HF_VOLTAGE * AvgAdc(ADC_CHAN_HF)) >> 10;
-
-		Dbprintf("%d mV",vHf);
-		if (BUTTON_PRESS()) break;
+		//Dbprintf("%d mV",vHf);
+		DbprintfEx(CMD_MEASURE_ANTENNA_TUNING_HF, "%d mV",vHf);
 	}
-	DbpString("cancelled");
-
 	FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
-
+	DbpString("cancelled");
 }
 
 
-void ReadMem(int addr)
-{
+void ReadMem(int addr) {
 	const uint8_t *data = ((uint8_t *)addr);
 
 	Dbprintf("%x: %02x %02x %02x %02x %02x %02x %02x %02x",
@@ -280,6 +295,7 @@ void SendVersion(void)
 	 * pointer, then use it.
 	 */
 	char *bootrom_version = *(char**)&_bootphase1_version_pointer;
+	
 	if( bootrom_version < &_flash_start || bootrom_version >= &_flash_end ) {
 		strcat(VersionString, "bootrom version information appears invalid\n");
 	} else {
@@ -292,6 +308,7 @@ void SendVersion(void)
 
 	FpgaGatherVersion(FPGA_BITSTREAM_LF, temp, sizeof(temp));
 	strncat(VersionString, temp, sizeof(VersionString) - strlen(VersionString) - 1);
+	
 	FpgaGatherVersion(FPGA_BITSTREAM_HF, temp, sizeof(temp));
 	strncat(VersionString, temp, sizeof(VersionString) - strlen(VersionString) - 1);
 
@@ -333,8 +350,7 @@ void printUSBSpeed(void)
 /**
   * Prints runtime information about the PM3.
 **/
-void SendStatus(void)
-{
+void SendStatus(void) {
 	BigBuf_print_status();
 	Fpga_print_status();
 	printConfig(); //LF Sampling config
@@ -351,7 +367,6 @@ void SendStatus(void)
 #if defined(WITH_ISO14443a_StandAlone) || defined(WITH_LF)
 
 #define OPTS 2
-
 void StandAloneMode()
 {
 	DbpString("Stand-alone mode! No PC necessary.");
@@ -365,29 +380,28 @@ void StandAloneMode()
 	LED(LED_GREEN,	200);
 	LED(LED_ORANGE, 200);
 	LED(LED_RED,	200);
-
 }
-
 #endif
 
+#ifdef WITH_ISO14443a_StandAlone
 
+typedef struct {
+	uint8_t uid[10];
+	uint8_t uidlen;
+	uint8_t atqa[2];
+	uint8_t sak;
+} __attribute__((__packed__)) card_clone_t;
 
-#ifdef WITH_ISO14443a_StandAlone
 void StandAloneMode14a()
 {
 	StandAloneMode();
 	FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
 
-	int selected = 0;
-	int playing = 0, iGotoRecord = 0, iGotoClone = 0;
+	int selected = 0, playing = 0, iGotoRecord = 0, iGotoClone = 0;
 	int cardRead[OPTS] = {0};
-	uint8_t readUID[10] = {0};
-	uint32_t uid_1st[OPTS]={0};
-	uint32_t uid_2nd[OPTS]={0};
-	uint32_t uid_tmp1 = 0;
-	uint32_t uid_tmp2 = 0;
-	iso14a_card_select_t hi14a_card[OPTS];
 
+	card_clone_t uids[OPTS];
+	iso14a_card_select_t card_info[OPTS];
 	uint8_t params = (MAGIC_SINGLE | MAGIC_DATAIN);
 					
 	LED(selected + 1, 0);
@@ -409,9 +423,6 @@ void StandAloneMode14a()
 			Dbprintf("Enabling iso14443a reader mode for [Bank: %u]...", selected);
 			/* need this delay to prevent catching some weird data */
 			SpinDelay(500);
-			/* Code for reading from 14a tag */
-			uint8_t uid[10]  ={0};
-			uint32_t cuid;
 			iso14443a_setup(FPGA_HF_ISO14443A_READER_MOD);
 
 			for ( ; ; )
@@ -422,9 +433,9 @@ void StandAloneMode14a()
 						Dbprintf("Button press detected -- replaying card in bank[%d]", selected);
 						break;
 					}
-					else if (cardRead[(selected+1)%OPTS]) {
+					else if (cardRead[(selected+1) % OPTS]) {
 						Dbprintf("Button press detected but no card in bank[%d] so playing from bank[%d]", selected, (selected+1)%OPTS);
-						selected = (selected+1)%OPTS;
+						selected = (selected+1) % OPTS;
 						break; // playing = 1;
 					}
 					else {
@@ -432,39 +443,33 @@ void StandAloneMode14a()
 						SpinDelay(300);
 					}
 				}
-				if (!iso14443a_select_card(uid, &hi14a_card[selected], &cuid, true, 0))
+				if (!iso14443a_select_card(NULL, &card_info[selected], NULL, true, 0))
 					continue;
 				else
 				{
-					Dbprintf("Read UID:"); Dbhexdump(10,uid,0);
-					memcpy(readUID,uid,10*sizeof(uint8_t));
-					uint8_t *dst = (uint8_t *)&uid_tmp1;
-					// Set UID byte order
-					for (int i=0; i<4; i++)
-						dst[i] = uid[3-i];
-					dst = (uint8_t *)&uid_tmp2;
-					for (int i=0; i<4; i++)
-						dst[i] = uid[7-i];
-					if (uid_1st[(selected+1)%OPTS] == uid_tmp1 && uid_2nd[(selected+1)%OPTS] == uid_tmp2) {
+					Dbprintf("Read UID:"); 
+					Dbhexdump(card_info[selected].uidlen, card_info[selected].uid, 0);
+					
+					if (memcmp(uids[(selected+1)%OPTS].uid, card_info[selected].uid, card_info[selected].uidlen ) == 0 ) {
 						Dbprintf("Card selected has same UID as what is stored in the other bank. Skipping.");
 					}
 					else {
-						if (uid_tmp2) {
-							Dbprintf("Bank[%d] received a 7-byte UID",selected);
-							uid_1st[selected] = (uid_tmp1)>>8;
-							uid_2nd[selected] = (uid_tmp1<<24) + (uid_tmp2>>8);
-						}
-						else {
-							Dbprintf("Bank[%d] received a 4-byte UID",selected);
-							uid_1st[selected] = uid_tmp1;
-							uid_2nd[selected] = uid_tmp2;
-						}
+						
+						uids[selected].sak = card_info[selected].sak;
+						uids[selected].uidlen = card_info[selected].uidlen;						
+						memcpy(uids[selected].uid , card_info[selected].uid, uids[selected].uidlen);						
+						memcpy(uids[selected].atqa, card_info[selected].atqa, 2);
+												
+						if (uids[selected].uidlen > 4)
+							Dbprintf("Bank[%d] received a 7-byte UID", selected);
+						else
+							Dbprintf("Bank[%d] received a 4-byte UID", selected);
 					break;
 				}
 			}
 			}
-			Dbprintf("ATQA = %02X%02X",hi14a_card[selected].atqa[0],hi14a_card[selected].atqa[1]);
-			Dbprintf("SAK = %02X",hi14a_card[selected].sak);
+			Dbprintf("ATQA = %02X%02X", uids[selected].atqa[0], uids[selected].atqa[1]);
+			Dbprintf("SAK = %02X", uids[selected].sak);
 			LEDsoff();
 			LED(LED_GREEN,  200);
 			LED(LED_ORANGE, 200);
@@ -487,8 +492,11 @@ void StandAloneMode14a()
 			LED(selected + 1, 0);
 			LED(LED_ORANGE, 250);
 
+			// magiccards holds 4bytes uid.
+			uint64_t tmpuid = bytes_to_num(uids[selected].uid, 4);
+			
 			// record
-			Dbprintf("Preparing to Clone card [Bank: %x]; uid: %08x", selected, uid_1st[selected]);
+			Dbprintf("Preparing to Clone card [Bank: %x]; uid: %08x", selected, tmpuid & 0xFFFFFFFF);
 
 			// wait for button to be released
 			// Delay cloning until card is in place
@@ -534,15 +542,12 @@ void StandAloneMode14a()
 				playing = 1;
 			}
 			else {
-				Dbprintf("UID from target tag: %02X%02X%02X%02X", oldBlock0[0],oldBlock0[1],oldBlock0[2],oldBlock0[3]);
-				memcpy(newBlock0,oldBlock0,16);
-				// Copy uid_1st for bank (2nd is for longer UIDs not supported if classic)
+				Dbprintf("UID from target tag: %02X%02X%02X%02X", oldBlock0[0], oldBlock0[1], oldBlock0[2], oldBlock0[3]);
+				memcpy(newBlock0, oldBlock0, 16);
 
-				newBlock0[0] = uid_1st[selected]>>24;
-				newBlock0[1] = 0xFF & (uid_1st[selected]>>16);
-				newBlock0[2] = 0xFF & (uid_1st[selected]>>8);
-				newBlock0[3] = 0xFF & (uid_1st[selected]);
-				newBlock0[4] = newBlock0[0]^newBlock0[1]^newBlock0[2]^newBlock0[3];
+				// Copy uid for bank (2nd is for longer UIDs not supported if classic)
+				memcpy(newBlock0, uids[selected].uid, 4);
+				newBlock0[4] = newBlock0[0] ^ newBlock0[1] ^ newBlock0[2] ^ newBlock0[3];
 
 				// arg0 = workFlags, arg1 = blockNo, datain
 				MifareCSetBlock(params, 0, newBlock0);
@@ -577,23 +582,36 @@ void StandAloneMode14a()
 					WDT_HIT();
 					int button_action = BUTTON_HELD(1000);
 					if (button_action == 0) { // No button action, proceed with sim
-						uint8_t data[512] = {0}; // in case there is a read command received we shouldn't break
-						uint8_t flags = ( uid_2nd[selected] > 0x00 ) ? FLAG_7B_UID_IN_DATA : FLAG_4B_UID_IN_DATA;
-						num_to_bytes(uid_1st[selected], 3, data);
-						num_to_bytes(uid_2nd[selected], 4, data);
+
+						uint8_t flags = FLAG_4B_UID_IN_DATA;
+						uint8_t data[USB_CMD_DATA_SIZE] = {0}; // in case there is a read command received we shouldn't break
+
+						memcpy(data, uids[selected].uid, uids[selected].uidlen);
 						
-						Dbprintf("Simulating ISO14443a tag with uid[0]: %08x, uid[1]: %08x [Bank: %u]", uid_1st[selected],uid_2nd[selected],selected);
-						if (hi14a_card[selected].sak == 8 && hi14a_card[selected].atqa[0] == 4 && hi14a_card[selected].atqa[1] == 0) {
-							DbpString("Mifare Classic");
-							SimulateIso14443aTag(1, flags, data); // Mifare Classic
+						uint64_t tmpuid = bytes_to_num(uids[selected].uid, uids[selected].uidlen);
+									
+						if (  uids[selected].uidlen == 7 ) {
+							flags = FLAG_7B_UID_IN_DATA;
+							Dbprintf("Simulating ISO14443a tag with uid: %02x%08x [Bank: %u]", tmpuid >> 32, tmpuid & 0xFFFFFFFF , selected);
+						} else {
+							Dbprintf("Simulating ISO14443a tag with uid: %08x [Bank: %u]", tmpuid & 0xFFFFFFFF , selected);
 						}
-						else if (hi14a_card[selected].sak == 0 && hi14a_card[selected].atqa[0] == 0x44 && hi14a_card[selected].atqa[1] == 0) {
+						
+						if (uids[selected].sak == 0x08 && uids[selected].atqa[0] == 0x04 && uids[selected].atqa[1] == 0) {
+							DbpString("Mifare Classic 1k");
+							SimulateIso14443aTag(1, flags, data);
+						} else if (uids[selected].sak == 0x18 && uids[selected].atqa[0] == 0x02 && uids[selected].atqa[1] == 0) {
+							DbpString("Mifare Classic 4k (4b uid)");
+							SimulateIso14443aTag(8, flags, data);
+						} else if (uids[selected].sak == 0x08 && uids[selected].atqa[0] == 0x44 && uids[selected].atqa[1] == 0) {
+							DbpString("Mifare Classic 4k (7b uid)");
+							SimulateIso14443aTag(8, flags, data);
+						} else if (uids[selected].sak == 0x00 && uids[selected].atqa[0] == 0x44 && uids[selected].atqa[1] == 0) {
 							DbpString("Mifare Ultralight");
-							SimulateIso14443aTag(2, flags, data); // Mifare Ultralight
-						}
-						else if (hi14a_card[selected].sak == 20 && hi14a_card[selected].atqa[0] == 0x44 && hi14a_card[selected].atqa[1] == 3) {
+							SimulateIso14443aTag(2, flags, data);
+						} else if (uids[selected].sak == 0x20 && uids[selected].atqa[0] == 0x04 && uids[selected].atqa[1] == 0x03) {
 							DbpString("Mifare DESFire");
-							SimulateIso14443aTag(3, flags, data); // Mifare DESFire
+							SimulateIso14443aTag(3, flags, data);
 						}
 						else {
 							Dbprintf("Unrecognized tag type -- defaulting to Mifare Classic emulation");
@@ -640,8 +658,7 @@ void SamyRun()
 	// Turn on selected LED
 	LED(selected + 1, 0);
 
-	for (;;)
-	{
+	for (;;) {
 		usb_poll();
 		WDT_HIT();
 
@@ -667,54 +684,46 @@ void SamyRun()
 			SpinDelay(500);
 
 			CmdHIDdemodFSK(1, &high[selected], &low[selected], 0);
-			Dbprintf("Recorded %x %x %x", selected, high[selected], low[selected]);
+			Dbprintf("Recorded %x %x %08x", selected, high[selected], low[selected]);
 
 			LEDsoff();
 			LED(selected + 1, 0);
 			// Finished recording
-
 			// If we were previously playing, set playing off
 			// so next button push begins playing what we recorded
-			playing = 0;
-			
-			cardRead = 1;
-	
+			playing = 0;			
+			cardRead = 1;	
 		}
+		else if (button_pressed > 0 && cardRead == 1) {
+			LEDsoff();
+			LED(selected + 1, 0);
+			LED(LED_ORANGE, 0);
 
-		else if (button_pressed > 0 && cardRead == 1)
-		{
-					LEDsoff();
-					LED(selected + 1, 0);
-					LED(LED_ORANGE, 0);
-
-					// record
-					Dbprintf("Cloning %x %x %x", selected, high[selected], low[selected]);
+			// record
+			Dbprintf("Cloning %x %x %08x", selected, high[selected], low[selected]);
 
-					// wait for button to be released
-					while(BUTTON_PRESS())
-						WDT_HIT();
+			// wait for button to be released
+			while(BUTTON_PRESS())
+				WDT_HIT();
 
-					/* need this delay to prevent catching some weird data */
-					SpinDelay(500);
+			/* need this delay to prevent catching some weird data */
+			SpinDelay(500);
 
-					CopyHIDtoT55x7(high[selected], low[selected], 0, 0);
-					Dbprintf("Cloned %x %x %x", selected, high[selected], low[selected]);
+			CopyHIDtoT55x7(0, high[selected], low[selected], 0);
+			Dbprintf("Cloned %x %x %08x", selected, high[selected], low[selected]);
 
-					LEDsoff();
-					LED(selected + 1, 0);
-					// Finished recording
+			LEDsoff();
+			LED(selected + 1, 0);
+			// Finished recording
 
-					// If we were previously playing, set playing off
-					// so next button push begins playing what we recorded
-					playing = 0;
-					
-					cardRead = 0;
-			
+			// If we were previously playing, set playing off
+			// so next button push begins playing what we recorded
+			playing = 0;			
+			cardRead = 0;			
 		}
 
 		// Change where to record (or begin playing)
-		else if (button_pressed)
-		{
+		else if (button_pressed) {
 			// Next option if we were previously playing
 			if (playing)
 				selected = (selected + 1) % OPTS;
@@ -731,15 +740,16 @@ void SamyRun()
 				// wait for button to be released
 				while(BUTTON_PRESS())
 					WDT_HIT();
-				Dbprintf("%x %x %x", selected, high[selected], low[selected]);
-				CmdHIDsimTAG(high[selected], low[selected], 0);
+				
+				Dbprintf("%x %x %08x", selected, high[selected], low[selected]);
+				CmdHIDsimTAG(high[selected], low[selected], 0);		
 				DbpString("Done playing");
-				if (BUTTON_HELD(1000) > 0)
-					{
+				
+				if (BUTTON_HELD(1000) > 0) {
 					DbpString("Exiting");
 					LEDsoff();
 					return;
-					}
+				}
 
 				/* We pressed a button so ignore it here with a delay */
 				SpinDelay(300);
@@ -795,16 +805,14 @@ static const char LIGHT_SCHEME[] = {
 };
 static const int LIGHT_LEN = sizeof(LIGHT_SCHEME)/sizeof(LIGHT_SCHEME[0]);
 
-void ListenReaderField(int limit)
-{
-	int lf_av, lf_av_new, lf_baseline= 0, lf_max;
-	int hf_av, hf_av_new,  hf_baseline= 0, hf_max;
-	int mode=1, display_val, display_max, i;
-
+void ListenReaderField(int limit) {
 #define LF_ONLY						1
 #define HF_ONLY						2
 #define REPORT_CHANGE			 	10    // report new values only if they have changed at least by REPORT_CHANGE
 
+	int lf_av, lf_av_new, lf_baseline= 0, lf_max;
+	int hf_av, hf_av_new,  hf_baseline= 0, hf_max;
+	int mode=1, display_val, display_max, i;
 
 	// switch off FPGA - we don't want to measure our own signal
 	FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
@@ -846,7 +854,7 @@ void ListenReaderField(int limit)
 
 		if (limit != HF_ONLY) {
 			if(mode == 1) {
-				if (abs(lf_av - lf_baseline) > REPORT_CHANGE) 
+				if (ABS(lf_av - lf_baseline) > REPORT_CHANGE) 
 					LED_D_ON();
 				else
 					LED_D_OFF();
@@ -854,7 +862,7 @@ void ListenReaderField(int limit)
 
 			lf_av_new = AvgAdc(ADC_CHAN_LF);
 			// see if there's a significant change
-			if(abs(lf_av - lf_av_new) > REPORT_CHANGE) {
+			if(ABS(lf_av - lf_av_new) > REPORT_CHANGE) {
 				Dbprintf("LF 125/134kHz Field Change: %5dmV", (MAX_ADC_LF_VOLTAGE * lf_av_new) >> 10);
 				lf_av = lf_av_new;
 				if (lf_av > lf_max)
@@ -864,7 +872,7 @@ void ListenReaderField(int limit)
 
 		if (limit != LF_ONLY) {
 			if (mode == 1){
-				if (abs(hf_av - hf_baseline) > REPORT_CHANGE) 	
+				if (ABS(hf_av - hf_baseline) > REPORT_CHANGE) 	
 					LED_B_ON();
 				else
 					LED_B_OFF();
@@ -872,7 +880,7 @@ void ListenReaderField(int limit)
 
 			hf_av_new = AvgAdc(ADC_CHAN_HF);
 			// see if there's a significant change
-			if(abs(hf_av - hf_av_new) > REPORT_CHANGE) {
+			if(ABS(hf_av - hf_av_new) > REPORT_CHANGE) {
 				Dbprintf("HF 13.56MHz Field Change: %5dmV", (MAX_ADC_HF_VOLTAGE * hf_av_new) >> 10);
 				hf_av = hf_av_new;
 				if (hf_av > hf_max)
@@ -913,7 +921,7 @@ void UsbPacketReceived(uint8_t *packet, int len)
 {
 	UsbCommand *c = (UsbCommand *)packet;
 
-  //Dbprintf("received %d bytes, with command: 0x%04x and args: %d %d %d",len,c->cmd,c->arg[0],c->arg[1],c->arg[2]);
+	//Dbprintf("received %d bytes, with command: 0x%04x and args: %d %d %d",len,c->cmd,c->arg[0],c->arg[1],c->arg[2]);
   
 	switch(c->cmd) {
 #ifdef WITH_LF
@@ -924,7 +932,7 @@ void UsbPacketReceived(uint8_t *packet, int len)
 			cmd_send(CMD_ACK, SampleLF(c->arg[0]),0,0,0,0);
 			break;
 		case CMD_MOD_THEN_ACQUIRE_RAW_ADC_SAMPLES_125K:
-			ModThenAcquireRawAdcSamples125k(c->arg[0],c->arg[1],c->arg[2],c->d.asBytes);
+			ModThenAcquireRawAdcSamples125k(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
 			break;
 		case CMD_LF_SNOOP_RAW_ADC_SAMPLES:
 			cmd_send(CMD_ACK,SnoopLF(),0,0,0,0);
@@ -966,7 +974,7 @@ void UsbPacketReceived(uint8_t *packet, int len)
 			WriteTItag(c->arg[0],c->arg[1],c->arg[2]);
 			break;
 		case CMD_SIMULATE_TAG_125K:
-			LED_A_ON();
+			LED_A_ON();		
 			SimulateTagLowFrequency(c->arg[0], c->arg[1], 1);
 			LED_A_OFF();
 			break;
@@ -998,10 +1006,10 @@ void UsbPacketReceived(uint8_t *packet, int len)
 			WritePCF7931(c->d.asBytes[0],c->d.asBytes[1],c->d.asBytes[2],c->d.asBytes[3],c->d.asBytes[4],c->d.asBytes[5],c->d.asBytes[6], c->d.asBytes[9], c->d.asBytes[7]-128,c->d.asBytes[8]-128, c->arg[0], c->arg[1], c->arg[2]);
 			break;
 		case CMD_EM4X_READ_WORD:
-			EM4xReadWord(c->arg[1], c->arg[2],c->d.asBytes[0]);
+			EM4xReadWord(c->arg[0], c->arg[1], c->arg[2]);
 			break;
 		case CMD_EM4X_WRITE_WORD:
-			EM4xWriteWord(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes[0]);
+			EM4xWriteWord(c->arg[0], c->arg[1], c->arg[2]);
 			break;
 		case CMD_AWID_DEMOD_FSK: // Set realtime AWID demodulation
 			CmdAWIDdemodFSK(c->arg[0], 0, 0, 1);
@@ -1009,6 +1017,9 @@ void UsbPacketReceived(uint8_t *packet, int len)
         case CMD_VIKING_CLONE_TAG:
 			CopyVikingtoT55xx(c->arg[0], c->arg[1], c->arg[2]);
             break;
+		case CMD_COTAG:
+			Cotag(c->arg[0]);
+			break;
 #endif
 
 #ifdef WITH_HITAG
@@ -1021,6 +1032,18 @@ void UsbPacketReceived(uint8_t *packet, int len)
 		case CMD_READER_HITAG: // Reader for Hitag tags, args = type and function
 			ReaderHitag((hitag_function)c->arg[0],(hitag_data*)c->d.asBytes);
 			break;
+		case CMD_SIMULATE_HITAG_S:// Simulate Hitag s tag, args = memory content
+			SimulateHitagSTag((bool)c->arg[0],(byte_t*)c->d.asBytes);
+			break;
+		case CMD_TEST_HITAGS_TRACES:// Tests every challenge within the given file
+			check_challenges((bool)c->arg[0],(byte_t*)c->d.asBytes);
+			break;
+		case CMD_READ_HITAG_S: //Reader for only Hitag S tags, args = key or challenge
+			ReadHitagS((hitag_function)c->arg[0],(hitag_data*)c->d.asBytes);
+			break;
+		case CMD_WR_HITAG_S: //writer for Hitag tags args=data to write,page and key or challenge
+			WritePageHitagS((hitag_function)c->arg[0],(hitag_data*)c->d.asBytes,c->arg[2]);
+			break;
 #endif
 
 #ifdef WITH_ISO15693
@@ -1030,19 +1053,15 @@ void UsbPacketReceived(uint8_t *packet, int len)
 		case CMD_RECORD_RAW_ADC_SAMPLES_ISO_15693:
 			RecordRawAdcSamplesIso15693();
 			break;
-			
 		case CMD_ISO_15693_COMMAND:
 			DirectTag15693Command(c->arg[0],c->arg[1],c->arg[2],c->d.asBytes);
 			break;
-					
 		case CMD_ISO_15693_FIND_AFI:
 			BruteforceIso15693Afi(c->arg[0]);
 			break;	
-			
 		case CMD_ISO_15693_DEBUG:
 			SetDebugIso15693(c->arg[0]);
 			break;
-
 		case CMD_READER_ISO_15693:
 			ReaderIso15693(c->arg[0]);
 			break;
@@ -1055,31 +1074,33 @@ void UsbPacketReceived(uint8_t *packet, int len)
 		case CMD_SIMULATE_TAG_LEGIC_RF:
 			LegicRfSimulate(c->arg[0], c->arg[1], c->arg[2]);
 			break;
-
 		case CMD_WRITER_LEGIC_RF:
-			LegicRfWriter(c->arg[1], c->arg[0]);
+			LegicRfWriter( c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
 			break;
-
 		case CMD_READER_LEGIC_RF:
-			LegicRfReader(c->arg[0], c->arg[1]);
+			LegicRfReader(c->arg[0], c->arg[1], c->arg[2]);
+			break;			
+		case CMD_LEGIC_INFO:
+			LegicRfInfo();
+			break;
+		case CMD_LEGIC_ESET:
+			LegicEMemSet(c->arg[0], c->arg[1], c->d.asBytes);
 			break;
 #endif
 
 #ifdef WITH_ISO14443b
-		case CMD_READ_SRI512_TAG:
-			ReadSTMemoryIso14443b(0x0F);
-			break;
-		case CMD_READ_SRIX4K_TAG:
-			ReadSTMemoryIso14443b(0x7F);
+		case CMD_READ_SRI_TAG:
+			ReadSTMemoryIso14443b(c->arg[0]);
 			break;
 		case CMD_SNOOP_ISO_14443B:
 			SnoopIso14443b();
 			break;
 		case CMD_SIMULATE_TAG_ISO_14443B:
-			SimulateIso14443bTag();
+			SimulateIso14443bTag(c->arg[0]);
 			break;
 		case CMD_ISO_14443B_COMMAND:
-			SendRawCommand14443B(c->arg[0],c->arg[1],c->arg[2],c->d.asBytes);
+			//SendRawCommand14443B(c->arg[0],c->arg[1],c->arg[2],c->d.asBytes);
+			SendRawCommand14443B_Ex(c);
 			break;
 #endif
 
@@ -1093,16 +1114,14 @@ void UsbPacketReceived(uint8_t *packet, int len)
 		case CMD_SIMULATE_TAG_ISO_14443a:
 			SimulateIso14443aTag(c->arg[0], c->arg[1], c->d.asBytes);  // ## Simulate iso14443a tag - pass tag type & UID
 			break;
-			
 		case CMD_EPA_PACE_COLLECT_NONCE:
 			EPA_PACE_Collect_Nonce(c);
 			break;
 		case CMD_EPA_PACE_REPLAY:
 			EPA_PACE_Replay(c);
 			break;
-			
 		case CMD_READER_MIFARE:
-            ReaderMifare(c->arg[0]);
+            ReaderMifare(c->arg[0], c->arg[1], c->arg[2]);
 			break;
 		case CMD_MIFARE_READBL:
 			MifareReadBlock(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
@@ -1177,6 +1196,10 @@ void UsbPacketReceived(uint8_t *packet, int len)
 			SniffMifare(c->arg[0]);
 			break;
 
+		case CMD_MIFARE_SETMOD:
+			MifareSetMod(c->arg[0], c->d.asBytes);
+			break;
+
 		//mifare desfire
 		case CMD_MIFARE_DESFIRE_READBL:	break;
 		case CMD_MIFARE_DESFIRE_WRITEBL: break;
@@ -1195,11 +1218,40 @@ void UsbPacketReceived(uint8_t *packet, int len)
 		case CMD_MIFARE_DESFIRE:
 			MifareSendCommand(c->arg[0], c->arg[1], c->d.asBytes);
 			break;
-
 		case CMD_MIFARE_COLLECT_NONCES:
 			break;
 #endif
-
+#ifdef WITH_EMV
+		case CMD_EMV_TRANSACTION:
+			EMVTransaction();
+			break;
+        case CMD_EMV_GET_RANDOM_NUM:
+            //EMVgetUDOL();
+            break;
+        case CMD_EMV_LOAD_VALUE:
+            EMVloadvalue(c->arg[0], c->d.asBytes);  
+            break;
+        case CMD_EMV_DUMP_CARD:
+            EMVdumpcard();
+			break;
+/*			
+       case CMD_EMV_READ_RECORD:
+            EMVReadRecord(c->arg[0], c->arg[1], NULL);
+            break; 
+        case CMD_EMV_CLONE:
+            EMVClone(c->arg[0], c->arg[1]);
+            break;
+       case CMD_EMV_SIM:
+            EMVSim();
+            break;
+        case CMD_EMV_TEST:
+            EMVTest();
+            break;
+        case CMD_EMV_FUZZ_RATS:
+            EMVFuzz_RATS(c->arg[0],c->d.asBytes);
+            break;
+			*/
+#endif
 #ifdef WITH_ICLASS
 		// Makes use of ISO14443a FPGA Firmware
 		case CMD_SNOOP_ICLASS:
@@ -1214,7 +1266,7 @@ void UsbPacketReceived(uint8_t *packet, int len)
 		case CMD_READER_ICLASS_REPLAY:
 		    ReaderIClass_Replay(c->arg[0], c->d.asBytes);
 			break;
-	case CMD_ICLASS_EML_MEMSET:
+		case CMD_ICLASS_EML_MEMSET:
 			emlSet(c->d.asBytes,c->arg[0], c->arg[1]);
 			break;
 		case CMD_ICLASS_WRITEBLOCK:
@@ -1264,26 +1316,55 @@ void UsbPacketReceived(uint8_t *packet, int len)
 			LED_D_OFF(); // LED D indicates field ON or OFF
 			break;
 
-		case CMD_DOWNLOAD_RAW_ADC_SAMPLES_125K:
-
+		case CMD_DOWNLOAD_RAW_ADC_SAMPLES_125K: {
 			LED_B_ON();
 			uint8_t *BigBuf = BigBuf_get_addr();
 			size_t len = 0;
-			for(size_t i=0; i<c->arg[1]; i += USB_CMD_DATA_SIZE) {
-				len = MIN((c->arg[1] - i),USB_CMD_DATA_SIZE);
-				cmd_send(CMD_DOWNLOADED_RAW_ADC_SAMPLES_125K,i,len,BigBuf_get_traceLen(),BigBuf+c->arg[0]+i,len);
+			size_t startidx = c->arg[0];
+			uint8_t isok = FALSE;
+			// arg0 = startindex
+			// arg1 = length bytes to transfer
+			// arg2 = RFU
+			//Dbprintf("transfer to client parameters: %" PRIu64 " | %" PRIu64 " | %" PRIu64, c->arg[0], c->arg[1], c->arg[2]);
+			
+			for(size_t i = 0; i < c->arg[1]; i += USB_CMD_DATA_SIZE) {
+				len = MIN( (c->arg[1] - i), USB_CMD_DATA_SIZE);
+				isok = cmd_send(CMD_DOWNLOADED_RAW_ADC_SAMPLES_125K, i, len, BigBuf_get_traceLen(), BigBuf + startidx + i, len);
+				if (!isok) 
+					Dbprintf("transfer to client failed ::  | bytes %d", len);
 			}
 			// Trigger a finish downloading signal with an ACK frame
-			cmd_send(CMD_ACK,1,0,BigBuf_get_traceLen(),getSamplingConfig(),sizeof(sample_config));
+			cmd_send(CMD_ACK, 1, 0, BigBuf_get_traceLen(), getSamplingConfig(), sizeof(sample_config));
 			LED_B_OFF();
 			break;
-
+		}
 		case CMD_DOWNLOADED_SIM_SAMPLES_125K: {
+			// iceman; since changing fpga_bitstreams clears bigbuff, Its better to call it before.
+			// to be able to use this one for uploading data to device 
+			// arg1 = 0 upload for LF usage 
+			//        1 upload for HF usage
+			if ( c->arg[1] == 0 )
+				FpgaDownloadAndGo(FPGA_BITSTREAM_LF);
+			else 
+				FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
 			uint8_t *b = BigBuf_get_addr();
-			memcpy(b+c->arg[0], c->d.asBytes, USB_CMD_DATA_SIZE);
-			cmd_send(CMD_ACK,0,0,0,0,0);
+			memcpy( b + c->arg[0], c->d.asBytes, USB_CMD_DATA_SIZE);
+			cmd_send(CMD_ACK,1,0,0,0,0);
 			break;
-		}	
+		}
+		case CMD_DOWNLOAD_EML_BIGBUF: {
+			LED_B_ON();
+			uint8_t *cardmem = BigBuf_get_EM_addr();
+			size_t len = 0;
+			for(size_t i=0; i < c->arg[1]; i += USB_CMD_DATA_SIZE) {
+				len = MIN((c->arg[1] - i), USB_CMD_DATA_SIZE);
+				cmd_send(CMD_DOWNLOADED_EML_BIGBUF, i, len, CARD_MEMORY_SIZE, cardmem + c->arg[0] + i, len);
+			}
+			// Trigger a finish downloading signal with an ACK frame
+			cmd_send(CMD_ACK, 1, 0, CARD_MEMORY_SIZE, 0, 0);
+			LED_B_OFF();
+			break;
+		}
 		case CMD_READ_MEM:
 			ReadMem(c->arg[0]);
 			break;
@@ -1363,10 +1444,7 @@ void  __attribute__((noreturn)) AppMain(void)
 	}
 	common_area.flags.osimage_present = 1;
 
-	LED_D_OFF();
-	LED_C_OFF();
-	LED_B_OFF();
-	LED_A_OFF();
+	LEDsoff();
 
 	// Init USB device
 	usb_enable();
@@ -1376,8 +1454,7 @@ void  __attribute__((noreturn)) AppMain(void)
 	AT91C_BASE_PIOA->PIO_PDR = GPIO_PCK0;
 	AT91C_BASE_PMC->PMC_SCER = AT91C_PMC_PCK0;
 	// PCK0 is PLL clock / 4 = 96Mhz / 4 = 24Mhz
-	AT91C_BASE_PMC->PMC_PCKR[0] = AT91C_PMC_CSS_PLL_CLK |
-		AT91C_PMC_PRES_CLK_4; //  4 for 24Mhz pck0, 2 for 48 MHZ pck0
+	AT91C_BASE_PMC->PMC_PCKR[0] = AT91C_PMC_CSS_PLL_CLK | AT91C_PMC_PRES_CLK_4; //  4 for 24Mhz pck0, 2 for 48 MHZ pck0
 	AT91C_BASE_PIOA->PIO_OER = GPIO_PCK0;
 
 	// Reset SPI
@@ -1399,11 +1476,11 @@ void  __attribute__((noreturn)) AppMain(void)
 	size_t rx_len;
   
 	for(;;) {
-		if (usb_poll()) {
-			rx_len = usb_read(rx,sizeof(UsbCommand));
-			if (rx_len) {
-				UsbPacketReceived(rx,rx_len);
-			}
+		if ( usb_poll_validate_length() ) {
+			rx_len = usb_read(rx, sizeof(UsbCommand));
+			
+			if (rx_len)
+				UsbPacketReceived(rx, rx_len);
 		}
 		WDT_HIT();