[proxmark3-svn] / client / cmdlfem4x.c

//-----------------------------------------------------------------------------
// Copyright (C) 2010 iZsh <izsh at fail0verflow.com>
//
// This code is licensed to you under the terms of the GNU GPL, version 2 or,
// at your option, any later version. See the LICENSE.txt file for the text of
// the license.
//-----------------------------------------------------------------------------
// Low frequency EM4x commands
//-----------------------------------------------------------------------------

#include <stdio.h>
#include <string.h>
#include <inttypes.h>
#include "proxmark3.h"
#include "ui.h"
#include "util.h"
#include "graph.h"
#include "cmdparser.h"
#include "cmddata.h"
#include "cmdlf.h"
#include "cmdlfem4x.h"
#include "lfdemod.h"

char *global_em410xId;

static int CmdHelp(const char *Cmd);

int CmdEMdemodASK(const char *Cmd)
{
	char cmdp = param_getchar(Cmd, 0);
	int findone = (cmdp == '1') ? 1 : 0;
	UsbCommand c={CMD_EM410X_DEMOD};
	c.arg[0]=findone;
	SendCommand(&c);
	return 0;
}

/* Read the ID of an EM410x tag.
 * Format:
 *   1111 1111 1           <-- standard non-repeatable header
 *   XXXX [row parity bit] <-- 10 rows of 5 bits for our 40 bit tag ID
 *   ....
 *   CCCC                  <-- each bit here is parity for the 10 bits above in corresponding column
 *   0                     <-- stop bit, end of tag
 */
int CmdEM410xRead(const char *Cmd)
{
	uint32_t hi=0;
	uint64_t lo=0;

	if(!AskEm410xDemod("", &hi, &lo, false)) return 0;
	PrintAndLog("EM410x pattern found: ");
	printEM410x(hi, lo);
	if (hi){
		PrintAndLog ("EM410x XL pattern found");
		return 0;
	}
	char id[12] = {0x00};
	sprintf(id, "%010"PRIx64,lo);
	
	global_em410xId = id;
	return 1;
}

// emulate an EM410X tag
int CmdEM410xSim(const char *Cmd)
{
	int i, n, j, binary[4], parity[4];

	char cmdp = param_getchar(Cmd, 0);
	uint8_t uid[5] = {0x00};

	if (cmdp == 'h' || cmdp == 'H') {
		PrintAndLog("Usage:  lf em4x em410xsim <UID> <clock>");
		PrintAndLog("");
		PrintAndLog("     sample: lf em4x em410xsim 0F0368568B");
		return 0;
	}
	/* clock is 64 in EM410x tags */
	uint8_t clock = 64;

	if (param_gethex(Cmd, 0, uid, 10)) {
		PrintAndLog("UID must include 10 HEX symbols");
		return 0;
	}
	param_getdec(Cmd,1, &clock);

	PrintAndLog("Starting simulating UID %02X%02X%02X%02X%02X  clock: %d", uid[0],uid[1],uid[2],uid[3],uid[4],clock);
	PrintAndLog("Press pm3-button to about simulation");


	/* clear our graph */
	ClearGraph(0);

		/* write 9 start bits */
		for (i = 0; i < 9; i++)
			AppendGraph(0, clock, 1);

		/* for each hex char */
		parity[0] = parity[1] = parity[2] = parity[3] = 0;
		for (i = 0; i < 10; i++)
		{
			/* read each hex char */
			sscanf(&Cmd[i], "%1x", &n);
			for (j = 3; j >= 0; j--, n/= 2)
				binary[j] = n % 2;

			/* append each bit */
			AppendGraph(0, clock, binary[0]);
			AppendGraph(0, clock, binary[1]);
			AppendGraph(0, clock, binary[2]);
			AppendGraph(0, clock, binary[3]);

			/* append parity bit */
			AppendGraph(0, clock, binary[0] ^ binary[1] ^ binary[2] ^ binary[3]);

			/* keep track of column parity */
			parity[0] ^= binary[0];
			parity[1] ^= binary[1];
			parity[2] ^= binary[2];
			parity[3] ^= binary[3];
		}

		/* parity columns */
		AppendGraph(0, clock, parity[0]);
		AppendGraph(0, clock, parity[1]);
		AppendGraph(0, clock, parity[2]);
		AppendGraph(0, clock, parity[3]);

		/* stop bit */
	AppendGraph(1, clock, 0);
 
	CmdLFSim("0"); //240 start_gap.
	return 0;
}

/* Function is equivalent of lf read + data samples + em410xread
 * looped until an EM410x tag is detected 
 * 
 * Why is CmdSamples("16000")?
 *  TBD: Auto-grow sample size based on detected sample rate.  IE: If the
 *       rate gets lower, then grow the number of samples
 *  Changed by martin, 4000 x 4 = 16000, 
 *  see http://www.proxmark.org/forum/viewtopic.php?pid=7235#p7235
*/
int CmdEM410xWatch(const char *Cmd)
{
	do {
		if (ukbhit()) {
			printf("\naborted via keyboard!\n");
			break;
		}
		
		CmdLFRead("s");
		getSamples("8201",true); //capture enough to get 2 complete preambles (4096*2+9)	
	} while (!CmdEM410xRead(""));

	return 0;
}

//currently only supports manchester modulations
int CmdEM410xWatchnSpoof(const char *Cmd)
{
	CmdEM410xWatch(Cmd);
	PrintAndLog("# Replaying captured ID: %s",global_em410xId);
	CmdLFaskSim("");
	return 0;
}

int CmdEM410xWrite(const char *Cmd)
{
	uint64_t id = 0xFFFFFFFFFFFFFFFF; // invalid id value
	int card = 0xFF; // invalid card value
	unsigned int clock = 0; // invalid clock value

	sscanf(Cmd, "%" PRIx64 " %d %d", &id, &card, &clock);

	// Check ID
	if (id == 0xFFFFFFFFFFFFFFFF) {
		PrintAndLog("Error! ID is required.\n");
		return 0;
	}
	if (id >= 0x10000000000) {
		PrintAndLog("Error! Given EM410x ID is longer than 40 bits.\n");
		return 0;
	}

	// Check Card
	if (card == 0xFF) {
		PrintAndLog("Error! Card type required.\n");
		return 0;
	}
	if (card < 0) {
		PrintAndLog("Error! Bad card type selected.\n");
		return 0;
	}

	// Check Clock
	// Default: 64
	if (clock == 0)
		clock = 64;

	// Allowed clock rates: 16, 32, 40 and 64
	if ((clock != 16) && (clock != 32) && (clock != 64) && (clock != 40)) {
		PrintAndLog("Error! Clock rate %d not valid. Supported clock rates are 16, 32, 40 and 64.\n", clock);
		return 0;
	}

	if (card == 1) {
		PrintAndLog("Writing %s tag with UID 0x%010" PRIx64 " (clock rate: %d)", "T55x7", id, clock);
		// NOTE: We really should pass the clock in as a separate argument, but to
		//   provide for backwards-compatibility for older firmware, and to avoid
		//   having to add another argument to CMD_EM410X_WRITE_TAG, we just store
		//   the clock rate in bits 8-15 of the card value
		card = (card & 0xFF) | ((clock << 8) & 0xFF00);
	}	else if (card == 0) {
		PrintAndLog("Writing %s tag with UID 0x%010" PRIx64, "T5555", id, clock);
		card = (card & 0xFF) | ((clock << 8) & 0xFF00);
	} else {
		PrintAndLog("Error! Bad card type selected.\n");
		return 0;
	}

	UsbCommand c = {CMD_EM410X_WRITE_TAG, {card, (uint32_t)(id >> 32), (uint32_t)id}};
	SendCommand(&c);

	return 0;
}

bool EM_EndParityTest(uint8_t *BitStream, size_t size, uint8_t rows, uint8_t cols, uint8_t pType)
{
	if (rows*cols>size) return false;
	uint8_t colP=0;
	//assume last col is a parity and do not test
	for (uint8_t colNum = 0; colNum < cols-1; colNum++) {
		for (uint8_t rowNum = 0; rowNum < rows; rowNum++) {
			colP ^= BitStream[(rowNum*cols)+colNum];
		}
		if (colP != pType) return false;
	}
	return true;
}

bool EM_ByteParityTest(uint8_t *BitStream, size_t size, uint8_t rows, uint8_t cols, uint8_t pType)
{
	if (rows*cols>size) return false;
	uint8_t rowP=0;
	//assume last row is a parity row and do not test
	for (uint8_t rowNum = 0; rowNum < rows-1; rowNum++) {
		for (uint8_t colNum = 0; colNum < cols; colNum++) {
			rowP ^= BitStream[(rowNum*cols)+colNum];
		}
		if (rowP != pType) return false;
	}
	return true;
}

uint32_t OutputEM4x50_Block(uint8_t *BitStream, size_t size, bool verbose, bool pTest)
{
	if (size<45) return 0;
	uint32_t code = bytebits_to_byte(BitStream,8);
	code = code<<8 | bytebits_to_byte(BitStream+9,8);
	code = code<<8 | bytebits_to_byte(BitStream+18,8);
	code = code<<8 | bytebits_to_byte(BitStream+27,8);
	if (verbose || g_debugMode){
		for (uint8_t i = 0; i<5; i++){
			if (i == 4) PrintAndLog(""); //parity byte spacer
			PrintAndLog("%d%d%d%d%d%d%d%d %d -> 0x%02x",
			    BitStream[i*9],
			    BitStream[i*9+1],
			    BitStream[i*9+2],
			    BitStream[i*9+3],
			    BitStream[i*9+4],
			    BitStream[i*9+5],
			    BitStream[i*9+6],
			    BitStream[i*9+7],
			    BitStream[i*9+8],
			    bytebits_to_byte(BitStream+i*9,8)
			);
		}
		if (pTest)
			PrintAndLog("Parity Passed");
		else
			PrintAndLog("Parity Failed");
	}
	return code;
}
/* Read the transmitted data of an EM4x50 tag
 * Format:
 *
 *  XXXXXXXX [row parity bit (even)] <- 8 bits plus parity
 *  XXXXXXXX [row parity bit (even)] <- 8 bits plus parity
 *  XXXXXXXX [row parity bit (even)] <- 8 bits plus parity
 *  XXXXXXXX [row parity bit (even)] <- 8 bits plus parity
 *  CCCCCCCC                         <- column parity bits
 *  0                                <- stop bit
 *  LW                               <- Listen Window
 *
 * This pattern repeats for every block of data being transmitted.
 * Transmission starts with two Listen Windows (LW - a modulated
 * pattern of 320 cycles each (32/32/128/64/64)).
 *
 * Note that this data may or may not be the UID. It is whatever data
 * is stored in the blocks defined in the control word First and Last
 * Word Read values. UID is stored in block 32.
 */
 //completed by Marshmellow
int EM4x50Read(const char *Cmd, bool verbose)
{
	uint8_t fndClk[] = {8,16,32,40,50,64,128};
	int clk = 0; 
	int invert = 0;
	int tol = 0;
	int i, j, startblock, skip, block, start, end, low, high, minClk;
	bool complete = false;
	int tmpbuff[MAX_GRAPH_TRACE_LEN / 64];
	uint32_t Code[6];
	char tmp[6];
	char tmp2[20];
	int phaseoff;
	high = low = 0;
	memset(tmpbuff, 0, MAX_GRAPH_TRACE_LEN / 64);

	// get user entry if any
	sscanf(Cmd, "%i %i", &clk, &invert);
	
	// save GraphBuffer - to restore it later	
	save_restoreGB(1);

	// first get high and low values
	for (i = 0; i < GraphTraceLen; i++) {
		if (GraphBuffer[i] > high)
			high = GraphBuffer[i];
		else if (GraphBuffer[i] < low)
			low = GraphBuffer[i];
	}

	i = 0;
	j = 0;
	minClk = 255;
	// get to first full low to prime loop and skip incomplete first pulse
	while ((GraphBuffer[i] < high) && (i < GraphTraceLen))
		++i;
	while ((GraphBuffer[i] > low) && (i < GraphTraceLen))
		++i;
	skip = i;

	// populate tmpbuff buffer with pulse lengths
	while (i < GraphTraceLen) {
		// measure from low to low
		while ((GraphBuffer[i] > low) && (i < GraphTraceLen))
			++i;
		start= i;
		while ((GraphBuffer[i] < high) && (i < GraphTraceLen))
			++i;
		while ((GraphBuffer[i] > low) && (i < GraphTraceLen))
			++i;
		if (j>=(MAX_GRAPH_TRACE_LEN/64)) {
			break;
		}
		tmpbuff[j++]= i - start;
		if (i-start < minClk && i < GraphTraceLen) {
			minClk = i - start;
		}
	}
	// set clock
	if (!clk) {
		for (uint8_t clkCnt = 0; clkCnt<7; clkCnt++) {
			tol = fndClk[clkCnt]/8;
			if (minClk >= fndClk[clkCnt]-tol && minClk <= fndClk[clkCnt]+1) { 
				clk=fndClk[clkCnt];
				break;
			}
		}
		if (!clk) return 0;
	} else tol = clk/8;

	// look for data start - should be 2 pairs of LW (pulses of clk*3,clk*2)
	start = -1;
	for (i= 0; i < j - 4 ; ++i) {
		skip += tmpbuff[i];
		if (tmpbuff[i] >= clk*3-tol && tmpbuff[i] <= clk*3+tol)  //3 clocks
			if (tmpbuff[i+1] >= clk*2-tol && tmpbuff[i+1] <= clk*2+tol)  //2 clocks
				if (tmpbuff[i+2] >= clk*3-tol && tmpbuff[i+2] <= clk*3+tol) //3 clocks
					if (tmpbuff[i+3] >= clk-tol)  //1.5 to 2 clocks - depends on bit following
					{
						start= i + 4;
						break;
					}
	}
	startblock = i + 4;

	// skip over the remainder of LW
	skip += tmpbuff[i+1] + tmpbuff[i+2] + clk;
	if (tmpbuff[i+3]>clk) 
		phaseoff = tmpbuff[i+3]-clk;
	else
		phaseoff = 0;
	// now do it again to find the end
	end = skip;
	for (i += 3; i < j - 4 ; ++i) {
		end += tmpbuff[i];
		if (tmpbuff[i] >= clk*3-tol && tmpbuff[i] <= clk*3+tol)  //3 clocks
			if (tmpbuff[i+1] >= clk*2-tol && tmpbuff[i+1] <= clk*2+tol)  //2 clocks
				if (tmpbuff[i+2] >= clk*3-tol && tmpbuff[i+2] <= clk*3+tol) //3 clocks
					if (tmpbuff[i+3] >= clk-tol)  //1.5 to 2 clocks - depends on bit following
					{
						complete= true;
						break;
					}
	}
	end = i;
	// report back
	if (verbose || g_debugMode) {
		if (start >= 0) {
			PrintAndLog("\nNote: one block = 50 bits (32 data, 12 parity, 6 marker)");
		}	else {
			PrintAndLog("No data found!, clock tried:%d",clk);
			PrintAndLog("Try again with more samples.");
			PrintAndLog("  or after a 'data askedge' command to clean up the read");
			return 0;
		}
	} else if (start < 0) return 0;
	start = skip;
	snprintf(tmp2, sizeof(tmp2),"%d %d 1000 %d", clk, invert, clk*47);
	// get rid of leading crap 
	snprintf(tmp, sizeof(tmp), "%i", skip);
	CmdLtrim(tmp);
	bool pTest;
	bool AllPTest = true;
	// now work through remaining buffer printing out data blocks
	block = 0;
	i = startblock;
	while (block < 6) {
		if (verbose || g_debugMode) PrintAndLog("\nBlock %i:", block);
		skip = phaseoff;
		
		// look for LW before start of next block
		for ( ; i < j - 4 ; ++i) {
			skip += tmpbuff[i];
			if (tmpbuff[i] >= clk*3-tol && tmpbuff[i] <= clk*3+tol)
				if (tmpbuff[i+1] >= clk-tol)
					break;
		}
		if (i >= j-4) break; //next LW not found
		skip += clk;
		if (tmpbuff[i+1]>clk)
			phaseoff = tmpbuff[i+1]-clk;
		else
			phaseoff = 0;
		i += 2;
		if (ASKDemod(tmp2, false, false, 1) < 1) {
			save_restoreGB(0);
			return 0;
		}
		//set DemodBufferLen to just one block
		DemodBufferLen = skip/clk;
		//test parities
		pTest = EM_ByteParityTest(DemodBuffer,DemodBufferLen,5,9,0);	
		pTest &= EM_EndParityTest(DemodBuffer,DemodBufferLen,5,9,0);
		AllPTest &= pTest;
		//get output
		Code[block] = OutputEM4x50_Block(DemodBuffer,DemodBufferLen,verbose, pTest);
		if (g_debugMode) PrintAndLog("\nskipping %d samples, bits:%d", skip, skip/clk);
		//skip to start of next block
		snprintf(tmp,sizeof(tmp),"%i",skip);
		CmdLtrim(tmp);
		block++;
		if (i >= end) break; //in case chip doesn't output 6 blocks
	}
	//print full code:
	if (verbose || g_debugMode || AllPTest){
		if (!complete) {
			PrintAndLog("*** Warning!");
			PrintAndLog("Partial data - no end found!");
			PrintAndLog("Try again with more samples.");
		}
		PrintAndLog("Found data at sample: %i - using clock: %i", start, clk);    
		end = block;
		for (block=0; block < end; block++){
			PrintAndLog("Block %d: %08x",block,Code[block]);
		}
		if (AllPTest) {
			PrintAndLog("Parities Passed");
		} else {
			PrintAndLog("Parities Failed");
			PrintAndLog("Try cleaning the read samples with 'data askedge'");
		}
	}

	//restore GraphBuffer
	save_restoreGB(0);
	return (int)AllPTest;
}

int CmdEM4x50Read(const char *Cmd)
{
	return EM4x50Read(Cmd, true);
}

int CmdReadWord(const char *Cmd)
{
	int Word = -1; //default to invalid word
	UsbCommand c;
	
	sscanf(Cmd, "%d", &Word);
	
	if ( (Word > 15) | (Word < 0) ) {
		PrintAndLog("Word must be between 0 and 15");
		return 1;
	}
	
	PrintAndLog("Reading word %d", Word);
	
	c.cmd = CMD_EM4X_READ_WORD;
	c.d.asBytes[0] = 0x0; //Normal mode
	c.arg[0] = 0;
	c.arg[1] = Word;
	c.arg[2] = 0;
	SendCommand(&c);
	return 0;
}

int CmdReadWordPWD(const char *Cmd)
{
	int Word = -1; //default to invalid word
	int Password = 0xFFFFFFFF; //default to blank password
	UsbCommand c;
	
	sscanf(Cmd, "%d %x", &Word, &Password);
	
	if ( (Word > 15) | (Word < 0) ) {
		PrintAndLog("Word must be between 0 and 15");
		return 1;
	}
	
	PrintAndLog("Reading word %d with password %08X", Word, Password);
	
	c.cmd = CMD_EM4X_READ_WORD;
	c.d.asBytes[0] = 0x1; //Password mode
	c.arg[0] = 0;
	c.arg[1] = Word;
	c.arg[2] = Password;
	SendCommand(&c);
	return 0;
}

int CmdWriteWord(const char *Cmd)
{
	int Word = 16; //default to invalid block
	int Data = 0xFFFFFFFF; //default to blank data
	UsbCommand c;
	
	sscanf(Cmd, "%x %d", &Data, &Word);
	
	if (Word > 15) {
		PrintAndLog("Word must be between 0 and 15");
		return 1;
	}
	
	PrintAndLog("Writing word %d with data %08X", Word, Data);
	
	c.cmd = CMD_EM4X_WRITE_WORD;
	c.d.asBytes[0] = 0x0; //Normal mode
	c.arg[0] = Data;
	c.arg[1] = Word;
	c.arg[2] = 0;
	SendCommand(&c);
	return 0;
}

int CmdWriteWordPWD(const char *Cmd)
{
	int Word = 16; //default to invalid word
	int Data = 0xFFFFFFFF; //default to blank data
	int Password = 0xFFFFFFFF; //default to blank password
	UsbCommand c;
	
	sscanf(Cmd, "%x %d %x", &Data, &Word, &Password);
	
	if (Word > 15) {
		PrintAndLog("Word must be between 0 and 15");
		return 1;
	}
	
	PrintAndLog("Writing word %d with data %08X and password %08X", Word, Data, Password);
	
	c.cmd = CMD_EM4X_WRITE_WORD;
	c.d.asBytes[0] = 0x1; //Password mode
	c.arg[0] = Data;
	c.arg[1] = Word;
	c.arg[2] = Password;
	SendCommand(&c);
	return 0;
}

static command_t CommandTable[] =
{
	{"help", CmdHelp, 1, "This help"},
	{"em410xdemod", CmdEMdemodASK, 0, "[findone] -- Extract ID from EM410x tag (option 0 for continuous loop, 1 for only 1 tag)"},  
	{"em410xread", CmdEM410xRead, 1, "[clock rate] -- Extract ID from EM410x tag in GraphBuffer"},
	{"em410xsim", CmdEM410xSim, 0, "<UID> [clock rate] -- Simulate EM410x tag"},
	{"em410xwatch", CmdEM410xWatch, 0, "['h'] -- Watches for EM410x 125/134 kHz tags (option 'h' for 134)"},
	{"em410xspoof", CmdEM410xWatchnSpoof, 0, "['h'] --- Watches for EM410x 125/134 kHz tags, and replays them. (option 'h' for 134)" },
	{"em410xwrite", CmdEM410xWrite, 0, "<UID> <'0' T5555> <'1' T55x7> [clock rate] -- Write EM410x UID to T5555(Q5) or T55x7 tag, optionally setting clock rate"},
	{"em4x50read", CmdEM4x50Read, 1, "Extract data from EM4x50 tag"},
	{"readword", CmdReadWord, 1, "<Word> -- Read EM4xxx word data"},
	{"readwordPWD", CmdReadWordPWD, 1, "<Word> <Password> -- Read EM4xxx word data in password mode"},
	{"writeword", CmdWriteWord, 1, "<Data> <Word> -- Write EM4xxx word data"},
	{"writewordPWD", CmdWriteWordPWD, 1, "<Data> <Word> <Password> -- Write EM4xxx word data in password mode"},
	{NULL, NULL, 0, NULL}
};

int CmdLFEM4X(const char *Cmd)
{
	CmdsParse(CommandTable, Cmd);
	return 0;
}

int CmdHelp(const char *Cmd)
{
	CmdsHelp(CommandTable);
	return 0;
}
Commit	Line	Data
a553f267	1	//-----------------------------------------------------------------------------
	2	// Copyright (C) 2010 iZsh <izsh at fail0verflow.com>
	3	//
	4	// This code is licensed to you under the terms of the GNU GPL, version 2 or,
	5	// at your option, any later version. See the LICENSE.txt file for the text of
	6	// the license.
	7	//-----------------------------------------------------------------------------
	8	// Low frequency EM4x commands
	9	//-----------------------------------------------------------------------------
	10
7fe9b0b7	11	#include <stdio.h>
9e13f875	12	#include <string.h>
ec564290	13	#include <inttypes.h>
902cb3c0	14	#include "proxmark3.h"
7fe9b0b7	15	#include "ui.h"
3fe4ff4f	16	#include "util.h"
7fe9b0b7	17	#include "graph.h"
	18	#include "cmdparser.h"
	19	#include "cmddata.h"
	20	#include "cmdlf.h"
	21	#include "cmdlfem4x.h"
23f0a7d8	22	#include "lfdemod.h"
6ac4cb27	23
c3bfb9c7	24	char *global_em410xId;
7fe9b0b7	25
	26	static int CmdHelp(const char *Cmd);
	27
66707a3b	28	int CmdEMdemodASK(const char *Cmd)
66707a3b	29	{
3fe4ff4f	30	char cmdp = param_getchar(Cmd, 0);
cc15a118	31	int findone = (cmdp == '1') ? 1 : 0;
23f0a7d8	32	UsbCommand c={CMD_EM410X_DEMOD};
	33	c.arg[0]=findone;
	34	SendCommand(&c);
	35	return 0;
66707a3b	36	}
66707a3b	37
7fe9b0b7	38	/* Read the ID of an EM410x tag.
	39	* Format:
	40	* 1111 1111 1 <-- standard non-repeatable header
	41	* XXXX [row parity bit] <-- 10 rows of 5 bits for our 40 bit tag ID
	42	* ....
	43	* CCCC <-- each bit here is parity for the 10 bits above in corresponding column
	44	* 0 <-- stop bit, end of tag
	45	*/
	46	int CmdEM410xRead(const char *Cmd)
	47	{
23f0a7d8	48	uint32_t hi=0;
	49	uint64_t lo=0;
	50
fef74fdc	51	if(!AskEm410xDemod("", &hi, &lo, false)) return 0;
23f0a7d8	52	PrintAndLog("EM410x pattern found: ");
	53	printEM410x(hi, lo);
	54	if (hi){
	55	PrintAndLog ("EM410x XL pattern found");
	56	return 0;
	57	}
	58	char id[12] = {0x00};
38d618ba	59	sprintf(id, "%010"PRIx64,lo);
23f0a7d8	60
	61	global_em410xId = id;
	62	return 1;
7fe9b0b7	63	}
7fe9b0b7	64
13d77ef9	65	// emulate an EM410X tag
7fe9b0b7	66	int CmdEM410xSim(const char *Cmd)
7fe9b0b7	67	{
3fe4ff4f	68	int i, n, j, binary[4], parity[4];
	69
	70	char cmdp = param_getchar(Cmd, 0);
	71	uint8_t uid[5] = {0x00};
	72
	73	if (cmdp == 'h' \|\| cmdp == 'H') {
daa4fbae	74	PrintAndLog("Usage: lf em4x em410xsim <UID> <clock>");
3fe4ff4f	75	PrintAndLog("");
daa4fbae	76	PrintAndLog(" sample: lf em4x em410xsim 0F0368568B");
3fe4ff4f	77	return 0;
3fe4ff4f	78	}
daa4fbae	79	/* clock is 64 in EM410x tags */
415274a7	80	uint8_t clock = 64;
3fe4ff4f	81
	82	if (param_gethex(Cmd, 0, uid, 10)) {
	83	PrintAndLog("UID must include 10 HEX symbols");
	84	return 0;
	85	}
415274a7	86	param_getdec(Cmd,1, &clock);
daa4fbae	87
daa4fbae	88	PrintAndLog("Starting simulating UID %02X%02X%02X%02X%02X clock: %d", uid[0],uid[1],uid[2],uid[3],uid[4],clock);
3fe4ff4f	89	PrintAndLog("Press pm3-button to about simulation");
7fe9b0b7	90
23f0a7d8	91
	92	/* clear our graph */
	93	ClearGraph(0);
	94
	95	/* write 9 start bits */
	96	for (i = 0; i < 9; i++)
	97	AppendGraph(0, clock, 1);
	98
	99	/* for each hex char */
	100	parity[0] = parity[1] = parity[2] = parity[3] = 0;
	101	for (i = 0; i < 10; i++)
	102	{
	103	/* read each hex char */
	104	sscanf(&Cmd[i], "%1x", &n);
	105	for (j = 3; j >= 0; j--, n/= 2)
	106	binary[j] = n % 2;
	107
	108	/* append each bit */
	109	AppendGraph(0, clock, binary[0]);
	110	AppendGraph(0, clock, binary[1]);
	111	AppendGraph(0, clock, binary[2]);
	112	AppendGraph(0, clock, binary[3]);
	113
	114	/* append parity bit */
	115	AppendGraph(0, clock, binary[0] ^ binary[1] ^ binary[2] ^ binary[3]);
	116
	117	/* keep track of column parity */
	118	parity[0] ^= binary[0];
	119	parity[1] ^= binary[1];
	120	parity[2] ^= binary[2];
	121	parity[3] ^= binary[3];
	122	}
	123
	124	/* parity columns */
	125	AppendGraph(0, clock, parity[0]);
	126	AppendGraph(0, clock, parity[1]);
	127	AppendGraph(0, clock, parity[2]);
	128	AppendGraph(0, clock, parity[3]);
	129
	130	/* stop bit */
	131	AppendGraph(1, clock, 0);
3fe4ff4f	132
23f0a7d8	133	CmdLFSim("0"); //240 start_gap.
23f0a7d8	134	return 0;
7fe9b0b7	135	}
7fe9b0b7	136
3fe4ff4f	137	/* Function is equivalent of lf read + data samples + em410xread
	138	* looped until an EM410x tag is detected
	139	*
	140	* Why is CmdSamples("16000")?
	141	* TBD: Auto-grow sample size based on detected sample rate. IE: If the
	142	* rate gets lower, then grow the number of samples
	143	* Changed by martin, 4000 x 4 = 16000,
	144	* see http://www.proxmark.org/forum/viewtopic.php?pid=7235#p7235
3fe4ff4f	145	*/
7fe9b0b7	146	int CmdEM410xWatch(const char *Cmd)
7fe9b0b7	147	{
3fe4ff4f	148	do {
	149	if (ukbhit()) {
	150	printf("\naborted via keyboard!\n");
	151	break;
	152	}
	153
1fbf8956	154	CmdLFRead("s");
2767fc02	155	getSamples("8201",true); //capture enough to get 2 complete preambles (4096*2+9)
13d77ef9	156	} while (!CmdEM410xRead(""));
13d77ef9	157
3fe4ff4f	158	return 0;
7fe9b0b7	159	}
7fe9b0b7	160
23f0a7d8	161	//currently only supports manchester modulations
c3bfb9c7	162	int CmdEM410xWatchnSpoof(const char *Cmd)
	163	{
	164	CmdEM410xWatch(Cmd);
1fbf8956	165	PrintAndLog("# Replaying captured ID: %s",global_em410xId);
	166	CmdLFaskSim("");
	167	return 0;
c3bfb9c7	168	}
c3bfb9c7	169
6e984446	170	int CmdEM410xWrite(const char *Cmd)
	171	{
	172	uint64_t id = 0xFFFFFFFFFFFFFFFF; // invalid id value
	173	int card = 0xFF; // invalid card value
	174	unsigned int clock = 0; // invalid clock value
	175
	176	sscanf(Cmd, "%" PRIx64 " %d %d", &id, &card, &clock);
	177
	178	// Check ID
	179	if (id == 0xFFFFFFFFFFFFFFFF) {
	180	PrintAndLog("Error! ID is required.\n");
	181	return 0;
	182	}
	183	if (id >= 0x10000000000) {
	184	PrintAndLog("Error! Given EM410x ID is longer than 40 bits.\n");
	185	return 0;
	186	}
	187
	188	// Check Card
	189	if (card == 0xFF) {
	190	PrintAndLog("Error! Card type required.\n");
	191	return 0;
	192	}
	193	if (card < 0) {
	194	PrintAndLog("Error! Bad card type selected.\n");
	195	return 0;
	196	}
	197
	198	// Check Clock
76346455	199	// Default: 64
	200	if (clock == 0)
	201	clock = 64;
	202
	203	// Allowed clock rates: 16, 32, 40 and 64
	204	if ((clock != 16) && (clock != 32) && (clock != 64) && (clock != 40)) {
	205	PrintAndLog("Error! Clock rate %d not valid. Supported clock rates are 16, 32, 40 and 64.\n", clock);
6e984446	206	return 0;
	207	}
	208
	209	if (card == 1) {
	210	PrintAndLog("Writing %s tag with UID 0x%010" PRIx64 " (clock rate: %d)", "T55x7", id, clock);
	211	// NOTE: We really should pass the clock in as a separate argument, but to
	212	// provide for backwards-compatibility for older firmware, and to avoid
	213	// having to add another argument to CMD_EM410X_WRITE_TAG, we just store
	214	// the clock rate in bits 8-15 of the card value
76346455	215	card = (card & 0xFF) \| ((clock << 8) & 0xFF00);
76346455	216	} else if (card == 0) {
6e984446	217	PrintAndLog("Writing %s tag with UID 0x%010" PRIx64, "T5555", id, clock);
76346455	218	card = (card & 0xFF) \| ((clock << 8) & 0xFF00);
76346455	219	} else {
6e984446	220	PrintAndLog("Error! Bad card type selected.\n");
	221	return 0;
	222	}
	223
	224	UsbCommand c = {CMD_EM410X_WRITE_TAG, {card, (uint32_t)(id >> 32), (uint32_t)id}};
	225	SendCommand(&c);
	226
	227	return 0;
	228	}
	229
23f0a7d8	230	bool EM_EndParityTest(uint8_t *BitStream, size_t size, uint8_t rows, uint8_t cols, uint8_t pType)
	231	{
	232	if (rows*cols>size) return false;
	233	uint8_t colP=0;
cc15a118	234	//assume last col is a parity and do not test
23f0a7d8	235	for (uint8_t colNum = 0; colNum < cols-1; colNum++) {
	236	for (uint8_t rowNum = 0; rowNum < rows; rowNum++) {
	237	colP ^= BitStream[(rowNum*cols)+colNum];
	238	}
	239	if (colP != pType) return false;
	240	}
	241	return true;
	242	}
	243
	244	bool EM_ByteParityTest(uint8_t *BitStream, size_t size, uint8_t rows, uint8_t cols, uint8_t pType)
	245	{
	246	if (rows*cols>size) return false;
	247	uint8_t rowP=0;
	248	//assume last row is a parity row and do not test
	249	for (uint8_t rowNum = 0; rowNum < rows-1; rowNum++) {
	250	for (uint8_t colNum = 0; colNum < cols; colNum++) {
	251	rowP ^= BitStream[(rowNum*cols)+colNum];
	252	}
	253	if (rowP != pType) return false;
	254	}
	255	return true;
	256	}
	257
	258	uint32_t OutputEM4x50_Block(uint8_t *BitStream, size_t size, bool verbose, bool pTest)
	259	{
	260	if (size<45) return 0;
	261	uint32_t code = bytebits_to_byte(BitStream,8);
	262	code = code<<8 \| bytebits_to_byte(BitStream+9,8);
	263	code = code<<8 \| bytebits_to_byte(BitStream+18,8);
	264	code = code<<8 \| bytebits_to_byte(BitStream+27,8);
	265	if (verbose \|\| g_debugMode){
	266	for (uint8_t i = 0; i<5; i++){
cc15a118	267	if (i == 4) PrintAndLog(""); //parity byte spacer
23f0a7d8	268	PrintAndLog("%d%d%d%d%d%d%d%d %d -> 0x%02x",
	269	BitStream[i*9],
	270	BitStream[i*9+1],
	271	BitStream[i*9+2],
	272	BitStream[i*9+3],
	273	BitStream[i*9+4],
	274	BitStream[i*9+5],
	275	BitStream[i*9+6],
	276	BitStream[i*9+7],
	277	BitStream[i*9+8],
	278	bytebits_to_byte(BitStream+i*9,8)
	279	);
	280	}
	281	if (pTest)
	282	PrintAndLog("Parity Passed");
	283	else
	284	PrintAndLog("Parity Failed");
	285	}
23f0a7d8	286	return code;
23f0a7d8	287	}
7fe9b0b7	288	/* Read the transmitted data of an EM4x50 tag
	289	* Format:
	290	*
	291	* XXXXXXXX [row parity bit (even)] <- 8 bits plus parity
	292	* XXXXXXXX [row parity bit (even)] <- 8 bits plus parity
	293	* XXXXXXXX [row parity bit (even)] <- 8 bits plus parity
	294	* XXXXXXXX [row parity bit (even)] <- 8 bits plus parity
	295	* CCCCCCCC <- column parity bits
	296	* 0 <- stop bit
	297	* LW <- Listen Window
	298	*
	299	* This pattern repeats for every block of data being transmitted.
	300	* Transmission starts with two Listen Windows (LW - a modulated
	301	* pattern of 320 cycles each (32/32/128/64/64)).
	302	*
	303	* Note that this data may or may not be the UID. It is whatever data
	304	* is stored in the blocks defined in the control word First and Last
	305	* Word Read values. UID is stored in block 32.
	306	*/
cc15a118	307	//completed by Marshmellow
23f0a7d8	308	int EM4x50Read(const char *Cmd, bool verbose)
23f0a7d8	309	{
cc15a118	310	uint8_t fndClk[] = {8,16,32,40,50,64,128};
23f0a7d8	311	int clk = 0;
23f0a7d8	312	int invert = 0;
23f0a7d8	313	int tol = 0;
23f0a7d8	314	int i, j, startblock, skip, block, start, end, low, high, minClk;
cc15a118	315	bool complete = false;
23f0a7d8	316	int tmpbuff[MAX_GRAPH_TRACE_LEN / 64];
23f0a7d8	317	uint32_t Code[6];
23f0a7d8	318	char tmp[6];
23f0a7d8	319	char tmp2[20];
49bbc60a	320	int phaseoff;
cc15a118	321	high = low = 0;
23f0a7d8	322	memset(tmpbuff, 0, MAX_GRAPH_TRACE_LEN / 64);
cc15a118	323
	324	// get user entry if any
	325	sscanf(Cmd, "%i %i", &clk, &invert);
	326
	327	// save GraphBuffer - to restore it later
	328	save_restoreGB(1);
	329
23f0a7d8	330	// first get high and low values
cc15a118	331	for (i = 0; i < GraphTraceLen; i++) {
23f0a7d8	332	if (GraphBuffer[i] > high)
	333	high = GraphBuffer[i];
	334	else if (GraphBuffer[i] < low)
	335	low = GraphBuffer[i];
	336	}
	337
cc15a118	338	i = 0;
	339	j = 0;
	340	minClk = 255;
	341	// get to first full low to prime loop and skip incomplete first pulse
	342	while ((GraphBuffer[i] < high) && (i < GraphTraceLen))
	343	++i;
	344	while ((GraphBuffer[i] > low) && (i < GraphTraceLen))
	345	++i;
	346	skip = i;
	347
	348	// populate tmpbuff buffer with pulse lengths
	349	while (i < GraphTraceLen) {
23f0a7d8	350	// measure from low to low
cc15a118	351	while ((GraphBuffer[i] > low) && (i < GraphTraceLen))
23f0a7d8	352	++i;
23f0a7d8	353	start= i;
cc15a118	354	while ((GraphBuffer[i] < high) && (i < GraphTraceLen))
23f0a7d8	355	++i;
cc15a118	356	while ((GraphBuffer[i] > low) && (i < GraphTraceLen))
23f0a7d8	357	++i;
	358	if (j>=(MAX_GRAPH_TRACE_LEN/64)) {
	359	break;
	360	}
	361	tmpbuff[j++]= i - start;
cc15a118	362	if (i-start < minClk && i < GraphTraceLen) {
	363	minClk = i - start;
	364	}
23f0a7d8	365	}
23f0a7d8	366	// set clock
cc15a118	367	if (!clk) {
23f0a7d8	368	for (uint8_t clkCnt = 0; clkCnt<7; clkCnt++) {
23f0a7d8	369	tol = fndClk[clkCnt]/8;
cc15a118	370	if (minClk >= fndClk[clkCnt]-tol && minClk <= fndClk[clkCnt]+1) {
23f0a7d8	371	clk=fndClk[clkCnt];
	372	break;
	373	}
	374	}
cc15a118	375	if (!clk) return 0;
6e984446	376	} else tol = clk/8;
23f0a7d8	377
23f0a7d8	378	// look for data start - should be 2 pairs of LW (pulses of clk3,clk2)
cc15a118	379	start = -1;
cc15a118	380	for (i= 0; i < j - 4 ; ++i) {
23f0a7d8	381	skip += tmpbuff[i];
cc15a118	382	if (tmpbuff[i] >= clk3-tol && tmpbuff[i] <= clk3+tol) //3 clocks
	383	if (tmpbuff[i+1] >= clk2-tol && tmpbuff[i+1] <= clk2+tol) //2 clocks
	384	if (tmpbuff[i+2] >= clk3-tol && tmpbuff[i+2] <= clk3+tol) //3 clocks
	385	if (tmpbuff[i+3] >= clk-tol) //1.5 to 2 clocks - depends on bit following
23f0a7d8	386	{
	387	start= i + 4;
	388	break;
	389	}
	390	}
cc15a118	391	startblock = i + 4;
23f0a7d8	392
23f0a7d8	393	// skip over the remainder of LW
49bbc60a	394	skip += tmpbuff[i+1] + tmpbuff[i+2] + clk;
	395	if (tmpbuff[i+3]>clk)
	396	phaseoff = tmpbuff[i+3]-clk;
	397	else
	398	phaseoff = 0;
23f0a7d8	399	// now do it again to find the end
23f0a7d8	400	end = skip;
cc15a118	401	for (i += 3; i < j - 4 ; ++i) {
23f0a7d8	402	end += tmpbuff[i];
cc15a118	403	if (tmpbuff[i] >= clk3-tol && tmpbuff[i] <= clk3+tol) //3 clocks
	404	if (tmpbuff[i+1] >= clk2-tol && tmpbuff[i+1] <= clk2+tol) //2 clocks
	405	if (tmpbuff[i+2] >= clk3-tol && tmpbuff[i+2] <= clk3+tol) //3 clocks
	406	if (tmpbuff[i+3] >= clk-tol) //1.5 to 2 clocks - depends on bit following
23f0a7d8	407	{
	408	complete= true;
	409	break;
	410	}
	411	}
	412	end = i;
	413	// report back
	414	if (verbose \|\| g_debugMode) {
	415	if (start >= 0) {
cc15a118	416	PrintAndLog("\nNote: one block = 50 bits (32 data, 12 parity, 6 marker)");
23f0a7d8	417	} else {
cc15a118	418	PrintAndLog("No data found!, clock tried:%d",clk);
23f0a7d8	419	PrintAndLog("Try again with more samples.");
cc15a118	420	PrintAndLog(" or after a 'data askedge' command to clean up the read");
23f0a7d8	421	return 0;
23f0a7d8	422	}
23f0a7d8	423	} else if (start < 0) return 0;
cc15a118	424	start = skip;
23f0a7d8	425	snprintf(tmp2, sizeof(tmp2),"%d %d 1000 %d", clk, invert, clk*47);
23f0a7d8	426	// get rid of leading crap
cc15a118	427	snprintf(tmp, sizeof(tmp), "%i", skip);
23f0a7d8	428	CmdLtrim(tmp);
23f0a7d8	429	bool pTest;
cc15a118	430	bool AllPTest = true;
23f0a7d8	431	// now work through remaining buffer printing out data blocks
	432	block = 0;
	433	i = startblock;
cc15a118	434	while (block < 6) {
23f0a7d8	435	if (verbose \|\| g_debugMode) PrintAndLog("\nBlock %i:", block);
	436	skip = phaseoff;
	437
	438	// look for LW before start of next block
cc15a118	439	for ( ; i < j - 4 ; ++i) {
23f0a7d8	440	skip += tmpbuff[i];
	441	if (tmpbuff[i] >= clk3-tol && tmpbuff[i] <= clk3+tol)
	442	if (tmpbuff[i+1] >= clk-tol)
	443	break;
	444	}
49bbc60a	445	if (i >= j-4) break; //next LW not found
23f0a7d8	446	skip += clk;
49bbc60a	447	if (tmpbuff[i+1]>clk)
	448	phaseoff = tmpbuff[i+1]-clk;
	449	else
	450	phaseoff = 0;
23f0a7d8	451	i += 2;
fef74fdc	452	if (ASKDemod(tmp2, false, false, 1) < 1) {
cc15a118	453	save_restoreGB(0);
	454	return 0;
	455	}
23f0a7d8	456	//set DemodBufferLen to just one block
	457	DemodBufferLen = skip/clk;
	458	//test parities
	459	pTest = EM_ByteParityTest(DemodBuffer,DemodBufferLen,5,9,0);
	460	pTest &= EM_EndParityTest(DemodBuffer,DemodBufferLen,5,9,0);
	461	AllPTest &= pTest;
	462	//get output
cc15a118	463	Code[block] = OutputEM4x50_Block(DemodBuffer,DemodBufferLen,verbose, pTest);
cc15a118	464	if (g_debugMode) PrintAndLog("\nskipping %d samples, bits:%d", skip, skip/clk);
23f0a7d8	465	//skip to start of next block
	466	snprintf(tmp,sizeof(tmp),"%i",skip);
	467	CmdLtrim(tmp);
	468	block++;
cc15a118	469	if (i >= end) break; //in case chip doesn't output 6 blocks
23f0a7d8	470	}
	471	//print full code:
	472	if (verbose \|\| g_debugMode \|\| AllPTest){
49bbc60a	473	if (!complete) {
	474	PrintAndLog("*** Warning!");
	475	PrintAndLog("Partial data - no end found!");
	476	PrintAndLog("Try again with more samples.");
	477	}
cc15a118	478	PrintAndLog("Found data at sample: %i - using clock: %i", start, clk);
	479	end = block;
	480	for (block=0; block < end; block++){
23f0a7d8	481	PrintAndLog("Block %d: %08x",block,Code[block]);
23f0a7d8	482	}
49bbc60a	483	if (AllPTest) {
23f0a7d8	484	PrintAndLog("Parities Passed");
49bbc60a	485	} else {
23f0a7d8	486	PrintAndLog("Parities Failed");
cc15a118	487	PrintAndLog("Try cleaning the read samples with 'data askedge'");
49bbc60a	488	}
23f0a7d8	489	}
	490
	491	//restore GraphBuffer
	492	save_restoreGB(0);
	493	return (int)AllPTest;
	494	}
	495
7fe9b0b7	496	int CmdEM4x50Read(const char *Cmd)
7fe9b0b7	497	{
23f0a7d8	498	return EM4x50Read(Cmd, true);
7fe9b0b7	499	}
7fe9b0b7	500
54a942b0	501	int CmdReadWord(const char *Cmd)
54a942b0	502	{
b915fda3	503	int Word = -1; //default to invalid word
23f0a7d8	504	UsbCommand c;
	505
	506	sscanf(Cmd, "%d", &Word);
	507
b915fda3	508	if ( (Word > 15) \| (Word < 0) ) {
23f0a7d8	509	PrintAndLog("Word must be between 0 and 15");
	510	return 1;
	511	}
	512
	513	PrintAndLog("Reading word %d", Word);
	514
	515	c.cmd = CMD_EM4X_READ_WORD;
	516	c.d.asBytes[0] = 0x0; //Normal mode
	517	c.arg[0] = 0;
	518	c.arg[1] = Word;
	519	c.arg[2] = 0;
	520	SendCommand(&c);
	521	return 0;
54a942b0	522	}
	523
	524	int CmdReadWordPWD(const char *Cmd)
	525	{
b915fda3	526	int Word = -1; //default to invalid word
23f0a7d8	527	int Password = 0xFFFFFFFF; //default to blank password
	528	UsbCommand c;
	529
	530	sscanf(Cmd, "%d %x", &Word, &Password);
	531
b915fda3	532	if ( (Word > 15) \| (Word < 0) ) {
23f0a7d8	533	PrintAndLog("Word must be between 0 and 15");
	534	return 1;
	535	}
	536
	537	PrintAndLog("Reading word %d with password %08X", Word, Password);
	538
	539	c.cmd = CMD_EM4X_READ_WORD;
	540	c.d.asBytes[0] = 0x1; //Password mode
	541	c.arg[0] = 0;
	542	c.arg[1] = Word;
	543	c.arg[2] = Password;
	544	SendCommand(&c);
	545	return 0;
54a942b0	546	}
	547
	548	int CmdWriteWord(const char *Cmd)
	549	{
23f0a7d8	550	int Word = 16; //default to invalid block
	551	int Data = 0xFFFFFFFF; //default to blank data
	552	UsbCommand c;
	553
	554	sscanf(Cmd, "%x %d", &Data, &Word);
	555
	556	if (Word > 15) {
	557	PrintAndLog("Word must be between 0 and 15");
	558	return 1;
	559	}
	560
	561	PrintAndLog("Writing word %d with data %08X", Word, Data);
	562
	563	c.cmd = CMD_EM4X_WRITE_WORD;
	564	c.d.asBytes[0] = 0x0; //Normal mode
	565	c.arg[0] = Data;
	566	c.arg[1] = Word;
	567	c.arg[2] = 0;
	568	SendCommand(&c);
	569	return 0;
54a942b0	570	}
	571
	572	int CmdWriteWordPWD(const char *Cmd)
	573	{
23f0a7d8	574	int Word = 16; //default to invalid word
	575	int Data = 0xFFFFFFFF; //default to blank data
	576	int Password = 0xFFFFFFFF; //default to blank password
	577	UsbCommand c;
	578
	579	sscanf(Cmd, "%x %d %x", &Data, &Word, &Password);
	580
	581	if (Word > 15) {
	582	PrintAndLog("Word must be between 0 and 15");
	583	return 1;
	584	}
	585
	586	PrintAndLog("Writing word %d with data %08X and password %08X", Word, Data, Password);
	587
	588	c.cmd = CMD_EM4X_WRITE_WORD;
	589	c.d.asBytes[0] = 0x1; //Password mode
	590	c.arg[0] = Data;
	591	c.arg[1] = Word;
	592	c.arg[2] = Password;
	593	SendCommand(&c);
	594	return 0;
54a942b0	595	}
54a942b0	596
2d4eae76	597	static command_t CommandTable[] =
7fe9b0b7	598	{
23f0a7d8	599	{"help", CmdHelp, 1, "This help"},
23f0a7d8	600	{"em410xdemod", CmdEMdemodASK, 0, "[findone] -- Extract ID from EM410x tag (option 0 for continuous loop, 1 for only 1 tag)"},
8e0cf023	601	{"em410xread", CmdEM410xRead, 1, "[clock rate] -- Extract ID from EM410x tag in GraphBuffer"},
415274a7	602	{"em410xsim", CmdEM410xSim, 0, "<UID> [clock rate] -- Simulate EM410x tag"},
23f0a7d8	603	{"em410xwatch", CmdEM410xWatch, 0, "['h'] -- Watches for EM410x 125/134 kHz tags (option 'h' for 134)"},
23f0a7d8	604	{"em410xspoof", CmdEM410xWatchnSpoof, 0, "['h'] --- Watches for EM410x 125/134 kHz tags, and replays them. (option 'h' for 134)" },
8e0cf023	605	{"em410xwrite", CmdEM410xWrite, 0, "<UID> <'0' T5555> <'1' T55x7> [clock rate] -- Write EM410x UID to T5555(Q5) or T55x7 tag, optionally setting clock rate"},
23f0a7d8	606	{"em4x50read", CmdEM4x50Read, 1, "Extract data from EM4x50 tag"},
	607	{"readword", CmdReadWord, 1, "<Word> -- Read EM4xxx word data"},
	608	{"readwordPWD", CmdReadWordPWD, 1, "<Word> <Password> -- Read EM4xxx word data in password mode"},
	609	{"writeword", CmdWriteWord, 1, "<Data> <Word> -- Write EM4xxx word data"},
	610	{"writewordPWD", CmdWriteWordPWD, 1, "<Data> <Word> <Password> -- Write EM4xxx word data in password mode"},
	611	{NULL, NULL, 0, NULL}
7fe9b0b7	612	};
	613
	614	int CmdLFEM4X(const char *Cmd)
	615	{
23f0a7d8	616	CmdsParse(CommandTable, Cmd);
23f0a7d8	617	return 0;
7fe9b0b7	618	}
	619
	620	int CmdHelp(const char *Cmd)
	621	{
23f0a7d8	622	CmdsHelp(CommandTable);
23f0a7d8	623	return 0;
7fe9b0b7	624	}