[proxmark3-svn] / client / cmdlfawid.c

//-----------------------------------------------------------------------------
// Authored by Craig Young <cyoung@tripwire.com> based on cmdlfhid.c structure
//
// cmdlfhid.c is 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 AWID26/50 commands
//-----------------------------------------------------------------------------
#include "cmdlfawid.h"  // AWID function declarations
 
static int CmdHelp(const char *Cmd);

int usage_lf_awid_fskdemod(void) {
	PrintAndLog("Enables AWID compatible reader mode printing details of scanned AWID26 or AWID50 tags.");
	PrintAndLog("By default, values are printed and logged until the button is pressed or another USB command is issued.");
	PrintAndLog("If the [1] option is provided, reader mode is exited after reading a single AWID card.");
	PrintAndLog("");
	PrintAndLog("Usage:  lf awid fskdemod [h] [1]");
	PrintAndLog("Options:");
	PrintAndLog("      h :  This help");	
	PrintAndLog("      1 : (optional) stop after reading a single card");
	PrintAndLog("");
	PrintAndLog("Samples:");
	PrintAndLog("       lf awid fskdemod");
	PrintAndLog("       lf awid fskdemod 1");
	return 0;
}

int usage_lf_awid_sim(void) {
	PrintAndLog("Enables simulation of AWID card with specified facility-code and card number.");
	PrintAndLog("Simulation runs until the button is pressed or another USB command is issued.");
	PrintAndLog("");
	PrintAndLog("Usage:  lf awid sim [h] <format> <facility-code> <card-number>");
	PrintAndLog("Options:");
	PrintAndLog("                h :  This help");	
	PrintAndLog("         <format> :  format length 26|50");
	PrintAndLog("  <facility-code> :  8|16bit value facility code");
	PrintAndLog("    <card number> :  16|32-bit value card number");
	PrintAndLog("");
	PrintAndLog("Samples:");
	PrintAndLog("       lf awid sim 26 224 1337");
	PrintAndLog("       lf awid sim 50 2001 13371337");
	return 0;
}

int usage_lf_awid_clone(void) {
	PrintAndLog("Enables cloning of AWID card with specified facility-code and card number onto T55x7.");
	PrintAndLog("The T55x7 must be on the antenna when issuing this command.  T55x7 blocks are calculated and printed in the process.");
	PrintAndLog("");
	PrintAndLog("Usage:  lf awid clone [h] <format> <facility-code> <card-number> [Q5]");
	PrintAndLog("Options:");
	PrintAndLog("                h :  This help");	
	PrintAndLog("         <format> :  format length 26|50");
	PrintAndLog("  <facility-code> :  8|16bit value facility code");
	PrintAndLog("    <card number> :  16|32-bit value card number");
	PrintAndLog("               Q5 :  optional - clone to Q5 (T5555) instead of T55x7 chip");
	PrintAndLog("");
	PrintAndLog("Samples:");
	PrintAndLog("       lf awid clone 26 224 1337");
	PrintAndLog("       lf awid clone 50 2001 13371337");
	return 0;
}

int usage_lf_awid_brute(void){
	PrintAndLog("Enables bruteforce of AWID reader with specified facility-code.");
	PrintAndLog("This is a attack against reader. if cardnumber is given, it starts with it and goes up / down one step");
	PrintAndLog("if cardnumber is not given, it starts with 1 and goes up to 65535");
	PrintAndLog("");
	PrintAndLog("Usage:  lf awid brute [h] a <format> f <facility-code> c <cardnumber> d <delay>");
	PrintAndLog("Options:");
	PrintAndLog("       h                 :  This help");
	PrintAndLog("       a <format>        :  format length 26|50");
	PrintAndLog("       f <facility-code> :  8|16bit value facility code");
	PrintAndLog("       c <cardnumber>    :  (optional) cardnumber to start with, max 65535");
	PrintAndLog("       d <delay>         :  delay betweens attempts in ms. Default 1000ms");
	PrintAndLog("");
	PrintAndLog("Samples:");
	PrintAndLog("       lf awid brute a 26 f 224");
	PrintAndLog("       lf awid brute a 50 f 2001 d 2000");
	PrintAndLog("       lf awid brute a 50 f 2001 c 200 d 2000");
	return 0;
}

static bool sendTry(uint8_t fmtlen, uint32_t fc, uint32_t cn, uint32_t delay, uint8_t *bs, size_t bs_len){

	PrintAndLog("Trying FC: %u; CN: %u", fc, cn);		
	if ( !getAWIDBits(fmtlen, fc, cn, bs)) {
		PrintAndLog("Error with tag bitstream generation.");
		return FALSE;
	}

	uint64_t arg1 = (10<<8) + 8; // fcHigh = 10, fcLow = 8
	uint64_t arg2 = 50; 		 // clk RF/50 invert=0
	UsbCommand c = {CMD_FSK_SIM_TAG, {arg1, arg2, bs_len}};
	memcpy(c.d.asBytes, bs, bs_len);
	clearCommandBuffer();
	SendCommand(&c);
	msleep(delay);
	return TRUE;
}
static int sendPing(){
	UsbCommand resp;
	UsbCommand ping = {CMD_PING};
	clearCommandBuffer(); SendCommand(&ping);
	clearCommandBuffer(); SendCommand(&ping);
	clearCommandBuffer(); SendCommand(&ping);
	if (WaitForResponseTimeout(CMD_ACK, &resp, 1000)) {
		PrintAndLog("aborted via keyboard!");
		return 0;
	}
	PrintAndLog("Device didnt respond to ABORT");	
	return 1;
}

int CmdAWIDDemodFSK(const char *Cmd) {
	int findone = 0;
	if (Cmd[0] == 'h' || Cmd[0] == 'H') return usage_lf_awid_fskdemod();
	if (Cmd[0] == '1') findone = 1;

	UsbCommand c = {CMD_AWID_DEMOD_FSK, {findone, 0, 0}};
	clearCommandBuffer();
	SendCommand(&c);
	return 0;   
}

//refactored by marshmellow
int getAWIDBits(uint8_t fmtlen, uint32_t fc, uint32_t cn, uint8_t *bits) {

	// the return bits, preamble 0000 0001 
	bits[7] = 1;  
	
	uint8_t pre[66];
	memset(pre, 0, sizeof(pre));

	// add formatlength
	num_to_bytebits(fmtlen, 8, pre);
	
	// add facilitycode, cardnumber and wiegand parity bits
	if ( fmtlen == 26 ) {
		uint8_t wiegand[24];
		num_to_bytebits(fc, 8, wiegand);
		num_to_bytebits(cn, 16, wiegand+8);
		wiegand_add_parity(pre+8, wiegand,  sizeof(wiegand));
	} else {
		uint8_t wiegand[48];
		num_to_bytebits(fc, 16, wiegand);
		num_to_bytebits(cn, 32, wiegand+16);
		wiegand_add_parity(pre+8, wiegand, sizeof(wiegand));
	}
	
	// add AWID 4bit parity 
	size_t bitLen = addParity(pre, bits+8, 66, 4, 1);

	if (bitLen != 88) return 0;
	return 1;
}

int CmdAWIDSim(const char *Cmd) {
	uint32_t fc = 0, cn = 0;
	uint8_t fmtlen = 0;
	uint8_t bits[96];
	uint8_t *bs = bits;
	size_t size = sizeof(bits);
	memset(bs, 0x00, size);

	uint64_t arg1 = ( 10 << 8 ) + 8; // fcHigh = 10, fcLow = 8
	uint64_t arg2 = 50; // clk RF/50 invert=0
  
	char cmdp = param_getchar(Cmd, 0);
	if (strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_awid_sim();
	
  	fmtlen = param_get8(Cmd, 0);
	fc = param_get32ex(Cmd, 1, 0, 10);	
	cn = param_get32ex(Cmd, 2, 0, 10);
	if ( !fc || !cn) return usage_lf_awid_sim();
	
	switch(fmtlen) {
		case 26:
			if ((fc & 0xFF) != fc) {
				fc &= 0xFF;
				PrintAndLog("Facility-Code Truncated to 8-bits (AWID26): %u", fc);
			}

			if ((cn & 0xFFFF) != cn) {
				cn &= 0xFFFF;
				PrintAndLog("Card Number Truncated to 16-bits (AWID26): %u", cn);
			}
			break;
		case 50:
			if ((fc & 0xFFFF) != fc) {
				fc &= 0xFFFF;
				PrintAndLog("Facility-Code Truncated to 16-bits (AWID50): %u", fc);
			}
			break;
		default: break;
	}
	
	PrintAndLog("Emulating AWID %u -- FC: %u; CN: %u\n", fmtlen, fc, cn);
	PrintAndLog("Press pm3-button to abort simulation or run another command");
	
	if (!getAWIDBits(fmtlen, fc, cn, bs)) {
		PrintAndLog("Error with tag bitstream generation.");
		return 1;
	}
	// AWID uses: fcHigh: 10, fcLow: 8, clk: 50, invert: 0
	// arg1 --- fcHigh<<8 + fcLow
	// arg2 --- Inversion and clk setting
	// 96   --- Bitstream length: 96-bits == 12 bytes
	UsbCommand c = {CMD_FSK_SIM_TAG, {arg1, arg2, size}};  
	memcpy(c.d.asBytes, bs, size);
	clearCommandBuffer();
	SendCommand(&c);
	return 0;
}

int CmdAWIDClone(const char *Cmd) {
	uint32_t blocks[4] = {T55x7_MODULATION_FSK2a | T55x7_BITRATE_RF_50 | 3<<T55x7_MAXBLOCK_SHIFT, 0, 0, 0};
	uint32_t fc = 0, cn = 0;
	uint8_t fmtlen = 0;
	uint8_t bits[96];
	uint8_t *bs=bits;
	memset(bs,0,sizeof(bits));
	
	char cmdp = param_getchar(Cmd, 0);
	if (strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_awid_clone();

  	fmtlen = param_get8(Cmd, 0);
	fc = param_get32ex(Cmd, 1, 0, 10);
	cn = param_get32ex(Cmd, 2, 0, 10);

	if ( !fc || !cn) return usage_lf_awid_clone();
	
	switch(fmtlen) {
		case 50:
			if ((fc & 0xFFFF) != fc) {
				fc &= 0xFFFF;
				PrintAndLog("Facility-Code Truncated to 16-bits (AWID50): %u", fc);
			}
			break;
		default: 
			fmtlen = 26;
			if ((fc & 0xFF) != fc) {
				fc &= 0xFF;
				PrintAndLog("Facility-Code Truncated to 8-bits (AWID26): %u", fc);
			}

			if ((cn & 0xFFFF) != cn) {
				cn &= 0xFFFF;
				PrintAndLog("Card Number Truncated to 16-bits (AWID26): %u", cn);
			}
			break;
	}
	
	if (param_getchar(Cmd, 4) == 'Q' || param_getchar(Cmd, 4) == 'q')
		//t5555 (Q5) BITRATE = (RF-2)/2 (iceman)
		blocks[0] = T5555_MODULATION_FSK2 | T5555_INVERT_OUTPUT | 50<<T5555_BITRATE_SHIFT | 3<<T5555_MAXBLOCK_SHIFT;

	if ( !getAWIDBits(fmtlen, fc, cn, bs)) {
		PrintAndLog("Error with tag bitstream generation.");
		return 1;
	}	

	blocks[1] = bytebits_to_byte(bs,32);
	blocks[2] = bytebits_to_byte(bs+32,32);
	blocks[3] = bytebits_to_byte(bs+64,32);

	PrintAndLog("Preparing to clone AWID %u to T55x7 with FC: %u, CN: %u", fmtlen, fc, cn);
	PrintAndLog("Blk | Data ");
	PrintAndLog("----+------------");
	PrintAndLog(" 00 | 0x%08x", blocks[0]);
	PrintAndLog(" 01 | 0x%08x", blocks[1]);
	PrintAndLog(" 02 | 0x%08x", blocks[2]);
	PrintAndLog(" 03 | 0x%08x", blocks[3]);	
	
	UsbCommand resp;
	UsbCommand c = {CMD_T55XX_WRITE_BLOCK, {0,0,0}};

	for (uint8_t i=0; i<4; i++) {
		c.arg[0] = blocks[i];
		c.arg[1] = i;
		clearCommandBuffer();
		SendCommand(&c);
		if (!WaitForResponseTimeout(CMD_ACK, &resp, 1500)){
			PrintAndLog("Error occurred, device did not respond during write operation.");
			return -1;
		}
	}
	return 0;
}

int CmdAWIDBrute(const char *Cmd){
	
	bool errors = false;
	uint32_t fc = 0, cn = 0, delay = 1000;
	uint8_t fmtlen = 0;
	uint8_t bits[96];
	uint8_t *bs = bits;
	size_t size = sizeof(bits);
	memset(bs, 0x00, size);
	uint8_t cmdp = 0;
	
	while(param_getchar(Cmd, cmdp) != 0x00 && !errors) {
		switch(param_getchar(Cmd, cmdp)) {
		case 'h':
		case 'H':
			return usage_lf_awid_brute();
		case 'f':
		case 'F':
		  	fc =  param_get32ex(Cmd ,cmdp+1, 0, 10);
			if ( !fc )
				errors = true;
			cmdp += 2;
			break;
		case 'd':
		case 'D':
			// delay between attemps,  defaults to 1000ms. 
			delay = param_get32ex(Cmd, cmdp+1, 1000, 10);
			cmdp += 2;
			break;
		case 'c':
		case 'C':
			cn = param_get32ex(Cmd, cmdp+1, 0, 10);
			// truncate cardnumber.
			cn &= 0xFFFF;
			cmdp += 2;
			break;
		case 'a':
		case 'A':
			fmtlen = param_get8(Cmd, cmdp+1);
			cmdp += 2;
			break;
		default:
			PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
			errors = true;
			break;
		}
	}
	if ( fc == 0 )errors = true;
	if ( errors ) return usage_lf_awid_brute();

	// limit fc according to selected format
	switch(fmtlen) {
		case 50:
			if ((fc & 0xFFFF) != fc) {
				fc &= 0xFFFF;
				PrintAndLog("Facility-code truncated to 16-bits (AWID50): %u", fc);
			}
			break;
		default:
			if ((fc & 0xFF) != fc) {
				fc &= 0xFF;
				PrintAndLog("Facility-code truncated to 8-bits (AWID26): %u", fc);
			}
			break;
	}
	
	// start
	
	PrintAndLog("Bruteforceing AWID %d Reader", fmtlen);
	PrintAndLog("Press pm3-button to abort simulation or press key");

	uint16_t up = cn;
	uint16_t down = cn;
	
	for (;;){
	
		if (ukbhit()) return sendPing();
		
		// Do one up
		if ( up < 0xFFFF )
			if ( !sendTry(fmtlen, fc, up++, delay, bs, size)) return 1;
		
		// Do one down  (if cardnumber is given)
		if ( cn > 1 )
			if ( down > 1 )
				if ( !sendTry(fmtlen, fc, --down, delay, bs, size)) return 1;
	}
	return 0;
}

static command_t CommandTable[] = {
	{"help",      CmdHelp,         1, "This help"},
	{"fskdemod",  CmdAWIDDemodFSK, 0, "Realtime AWID FSK demodulator"},
	{"sim",       CmdAWIDSim,      0, "AWID tag simulator"},
	{"clone",     CmdAWIDClone,    0, "Clone AWID to T55x7"},
	{"brute",	  CmdAWIDBrute,	   0, "Bruteforce card number against reader"},
	{NULL, NULL, 0, NULL}
};

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

int CmdHelp(const char *Cmd) {
	CmdsHelp(CommandTable);
	return 0;
}
Commit	Line	Data
db25599d	1	//-----------------------------------------------------------------------------
	2	// Authored by Craig Young <cyoung@tripwire.com> based on cmdlfhid.c structure
	3	//
	4	// cmdlfhid.c is Copyright (C) 2010 iZsh <izsh at fail0verflow.com>
	5	//
	6	// This code is licensed to you under the terms of the GNU GPL, version 2 or,
	7	// at your option, any later version. See the LICENSE.txt file for the text of
	8	// the license.
	9	//-----------------------------------------------------------------------------
f5291a6c	10	// Low frequency AWID26/50 commands
db25599d	11	//-----------------------------------------------------------------------------
db25599d	12	#include "cmdlfawid.h" // AWID function declarations
508b37ba	13
db25599d	14	static int CmdHelp(const char *Cmd);
db25599d	15
db25599d	16	int usage_lf_awid_fskdemod(void) {
8fd9bfb0	17	PrintAndLog("Enables AWID compatible reader mode printing details of scanned AWID26 or AWID50 tags.");
a126332a	18	PrintAndLog("By default, values are printed and logged until the button is pressed or another USB command is issued.");
8fd9bfb0	19	PrintAndLog("If the [1] option is provided, reader mode is exited after reading a single AWID card.");
a126332a	20	PrintAndLog("");
890ae3dd	21	PrintAndLog("Usage: lf awid fskdemod [h] [1]");
10c4231e	22	PrintAndLog("Options:");
890ae3dd	23	PrintAndLog(" h : This help");
8fd9bfb0	24	PrintAndLog(" 1 : (optional) stop after reading a single card");
a126332a	25	PrintAndLog("");
10c4231e	26	PrintAndLog("Samples:");
	27	PrintAndLog(" lf awid fskdemod");
	28	PrintAndLog(" lf awid fskdemod 1");
a126332a	29	return 0;
db25599d	30	}
	31
	32	int usage_lf_awid_sim(void) {
8fd9bfb0	33	PrintAndLog("Enables simulation of AWID card with specified facility-code and card number.");
a126332a	34	PrintAndLog("Simulation runs until the button is pressed or another USB command is issued.");
a126332a	35	PrintAndLog("");
890ae3dd	36	PrintAndLog("Usage: lf awid sim [h] <format> <facility-code> <card-number>");
10c4231e	37	PrintAndLog("Options:");
890ae3dd	38	PrintAndLog(" h : This help");
890ae3dd	39	PrintAndLog(" <format> : format length 26\|50");
8fd9bfb0	40	PrintAndLog(" <facility-code> : 8\|16bit value facility code");
890ae3dd	41	PrintAndLog(" <card number> : 16\|32-bit value card number");
a126332a	42	PrintAndLog("");
10c4231e	43	PrintAndLog("Samples:");
8fd9bfb0	44	PrintAndLog(" lf awid sim 26 224 1337");
8fd9bfb0	45	PrintAndLog(" lf awid sim 50 2001 13371337");
a126332a	46	return 0;
db25599d	47	}
	48
	49	int usage_lf_awid_clone(void) {
8fd9bfb0	50	PrintAndLog("Enables cloning of AWID card with specified facility-code and card number onto T55x7.");
a126332a	51	PrintAndLog("The T55x7 must be on the antenna when issuing this command. T55x7 blocks are calculated and printed in the process.");
a126332a	52	PrintAndLog("");
890ae3dd	53	PrintAndLog("Usage: lf awid clone [h] <format> <facility-code> <card-number> [Q5]");
10c4231e	54	PrintAndLog("Options:");
890ae3dd	55	PrintAndLog(" h : This help");
890ae3dd	56	PrintAndLog(" <format> : format length 26\|50");
8fd9bfb0	57	PrintAndLog(" <facility-code> : 8\|16bit value facility code");
890ae3dd	58	PrintAndLog(" <card number> : 16\|32-bit value card number");
890ae3dd	59	PrintAndLog(" Q5 : optional - clone to Q5 (T5555) instead of T55x7 chip");
a126332a	60	PrintAndLog("");
10c4231e	61	PrintAndLog("Samples:");
8fd9bfb0	62	PrintAndLog(" lf awid clone 26 224 1337");
8fd9bfb0	63	PrintAndLog(" lf awid clone 50 2001 13371337");
a126332a	64	return 0;
db25599d	65	}
db25599d	66
508b37ba	67	int usage_lf_awid_brute(void){
8fd9bfb0	68	PrintAndLog("Enables bruteforce of AWID reader with specified facility-code.");
10c4231e	69	PrintAndLog("This is a attack against reader. if cardnumber is given, it starts with it and goes up / down one step");
10c4231e	70	PrintAndLog("if cardnumber is not given, it starts with 1 and goes up to 65535");
508b37ba	71	PrintAndLog("");
10c4231e	72	PrintAndLog("Usage: lf awid brute [h] a <format> f <facility-code> c <cardnumber> d <delay>");
	73	PrintAndLog("Options:");
	74	PrintAndLog(" h : This help");
	75	PrintAndLog(" a <format> : format length 26\|50");
	76	PrintAndLog(" f <facility-code> : 8\|16bit value facility code");
	77	PrintAndLog(" c <cardnumber> : (optional) cardnumber to start with, max 65535");
	78	PrintAndLog(" d <delay> : delay betweens attempts in ms. Default 1000ms");
508b37ba	79	PrintAndLog("");
10c4231e	80	PrintAndLog("Samples:");
	81	PrintAndLog(" lf awid brute a 26 f 224");
	82	PrintAndLog(" lf awid brute a 50 f 2001 d 2000");
	83	PrintAndLog(" lf awid brute a 50 f 2001 c 200 d 2000");
508b37ba	84	return 0;
	85	}
	86
05442fa6	87	static bool sendTry(uint8_t fmtlen, uint32_t fc, uint32_t cn, uint32_t delay, uint8_t *bs, size_t bs_len){
10c4231e	88
	89	PrintAndLog("Trying FC: %u; CN: %u", fc, cn);
	90	if ( !getAWIDBits(fmtlen, fc, cn, bs)) {
	91	PrintAndLog("Error with tag bitstream generation.");
	92	return FALSE;
	93	}
	94
	95	uint64_t arg1 = (10<<8) + 8; // fcHigh = 10, fcLow = 8
	96	uint64_t arg2 = 50; // clk RF/50 invert=0
	97	UsbCommand c = {CMD_FSK_SIM_TAG, {arg1, arg2, bs_len}};
	98	memcpy(c.d.asBytes, bs, bs_len);
	99	clearCommandBuffer();
	100	SendCommand(&c);
	101	msleep(delay);
	102	return TRUE;
	103	}
	104	static int sendPing(){
	105	UsbCommand resp;
	106	UsbCommand ping = {CMD_PING};
56f1aaa2	107	clearCommandBuffer(); SendCommand(&ping);
	108	clearCommandBuffer(); SendCommand(&ping);
	109	clearCommandBuffer(); SendCommand(&ping);
10c4231e	110	if (WaitForResponseTimeout(CMD_ACK, &resp, 1000)) {
	111	PrintAndLog("aborted via keyboard!");
	112	return 0;
	113	}
	114	PrintAndLog("Device didnt respond to ABORT");
	115	return 1;
	116	}
	117
52f2df61	118	int CmdAWIDDemodFSK(const char *Cmd) {
a126332a	119	int findone = 0;
	120	if (Cmd[0] == 'h' \|\| Cmd[0] == 'H') return usage_lf_awid_fskdemod();
	121	if (Cmd[0] == '1') findone = 1;
	122
	123	UsbCommand c = {CMD_AWID_DEMOD_FSK, {findone, 0, 0}};
	124	clearCommandBuffer();
	125	SendCommand(&c);
	126	return 0;
db25599d	127	}
db25599d	128
a126332a	129	//refactored by marshmellow
8fd9bfb0	130	int getAWIDBits(uint8_t fmtlen, uint32_t fc, uint32_t cn, uint8_t *bits) {
	131
	132	// the return bits, preamble 0000 0001
	133	bits[7] = 1;
	134
a126332a	135	uint8_t pre[66];
a126332a	136	memset(pre, 0, sizeof(pre));
52f2df61	137
8fd9bfb0	138	// add formatlength
	139	num_to_bytebits(fmtlen, 8, pre);
	140
	141	// add facilitycode, cardnumber and wiegand parity bits
	142	if ( fmtlen == 26 ) {
	143	uint8_t wiegand[24];
	144	num_to_bytebits(fc, 8, wiegand);
	145	num_to_bytebits(cn, 16, wiegand+8);
	146	wiegand_add_parity(pre+8, wiegand, sizeof(wiegand));
	147	} else {
	148	uint8_t wiegand[48];
	149	num_to_bytebits(fc, 16, wiegand);
	150	num_to_bytebits(cn, 32, wiegand+16);
	151	wiegand_add_parity(pre+8, wiegand, sizeof(wiegand));
	152	}
	153
	154	// add AWID 4bit parity
	155	size_t bitLen = addParity(pre, bits+8, 66, 4, 1);
fcb1cdba	156
a126332a	157	if (bitLen != 88) return 0;
52f2df61	158	return 1;
db25599d	159	}
db25599d	160
a126332a	161	int CmdAWIDSim(const char *Cmd) {
8fd9bfb0	162	uint32_t fc = 0, cn = 0;
8fd9bfb0	163	uint8_t fmtlen = 0;
a126332a	164	uint8_t bits[96];
	165	uint8_t *bs = bits;
	166	size_t size = sizeof(bits);
fcb1cdba	167	memset(bs, 0x00, size);
52f2df61	168
fcb1cdba	169	uint64_t arg1 = ( 10 << 8 ) + 8; // fcHigh = 10, fcLow = 8
52f2df61	170	uint64_t arg2 = 50; // clk RF/50 invert=0
52f2df61	171
8fd9bfb0	172	char cmdp = param_getchar(Cmd, 0);
8fd9bfb0	173	if (strlen(Cmd) == 0 \|\| cmdp == 'h' \|\| cmdp == 'H') return usage_lf_awid_sim();
52f2df61	174
8fd9bfb0	175	fmtlen = param_get8(Cmd, 0);
	176	fc = param_get32ex(Cmd, 1, 0, 10);
	177	cn = param_get32ex(Cmd, 2, 0, 10);
	178	if ( !fc \|\| !cn) return usage_lf_awid_sim();
52f2df61	179
8fd9bfb0	180	switch(fmtlen) {
	181	case 26:
	182	if ((fc & 0xFF) != fc) {
	183	fc &= 0xFF;
	184	PrintAndLog("Facility-Code Truncated to 8-bits (AWID26): %u", fc);
	185	}
	186
	187	if ((cn & 0xFFFF) != cn) {
	188	cn &= 0xFFFF;
	189	PrintAndLog("Card Number Truncated to 16-bits (AWID26): %u", cn);
	190	}
	191	break;
	192	case 50:
	193	if ((fc & 0xFFFF) != fc) {
	194	fc &= 0xFFFF;
	195	PrintAndLog("Facility-Code Truncated to 16-bits (AWID50): %u", fc);
	196	}
	197	break;
	198	default: break;
	199	}
	200
	201	PrintAndLog("Emulating AWID %u -- FC: %u; CN: %u\n", fmtlen, fc, cn);
52f2df61	202	PrintAndLog("Press pm3-button to abort simulation or run another command");
52f2df61	203
8fd9bfb0	204	if (!getAWIDBits(fmtlen, fc, cn, bs)) {
52f2df61	205	PrintAndLog("Error with tag bitstream generation.");
	206	return 1;
	207	}
	208	// AWID uses: fcHigh: 10, fcLow: 8, clk: 50, invert: 0
52f2df61	209	// arg1 --- fcHigh<<8 + fcLow
	210	// arg2 --- Inversion and clk setting
	211	// 96 --- Bitstream length: 96-bits == 12 bytes
a126332a	212	UsbCommand c = {CMD_FSK_SIM_TAG, {arg1, arg2, size}};
a126332a	213	memcpy(c.d.asBytes, bs, size);
52f2df61	214	clearCommandBuffer();
	215	SendCommand(&c);
	216	return 0;
db25599d	217	}
db25599d	218
a126332a	219	int CmdAWIDClone(const char *Cmd) {
a126332a	220	uint32_t blocks[4] = {T55x7_MODULATION_FSK2a \| T55x7_BITRATE_RF_50 \| 3<<T55x7_MAXBLOCK_SHIFT, 0, 0, 0};
8fd9bfb0	221	uint32_t fc = 0, cn = 0;
8fd9bfb0	222	uint8_t fmtlen = 0;
a126332a	223	uint8_t bits[96];
52f2df61	224	uint8_t *bs=bits;
a126332a	225	memset(bs,0,sizeof(bits));
52f2df61	226
8fd9bfb0	227	char cmdp = param_getchar(Cmd, 0);
8fd9bfb0	228	if (strlen(Cmd) == 0 \|\| cmdp == 'h' \|\| cmdp == 'H') return usage_lf_awid_clone();
f3cfe428	229
8fd9bfb0	230	fmtlen = param_get8(Cmd, 0);
	231	fc = param_get32ex(Cmd, 1, 0, 10);
	232	cn = param_get32ex(Cmd, 2, 0, 10);
a126332a	233
8fd9bfb0	234	if ( !fc \|\| !cn) return usage_lf_awid_clone();
	235
	236	switch(fmtlen) {
	237	case 50:
	238	if ((fc & 0xFFFF) != fc) {
	239	fc &= 0xFFFF;
	240	PrintAndLog("Facility-Code Truncated to 16-bits (AWID50): %u", fc);
	241	}
	242	break;
	243	default:
	244	fmtlen = 26;
	245	if ((fc & 0xFF) != fc) {
	246	fc &= 0xFF;
	247	PrintAndLog("Facility-Code Truncated to 8-bits (AWID26): %u", fc);
	248	}
f3cfe428	249
8fd9bfb0	250	if ((cn & 0xFFFF) != cn) {
	251	cn &= 0xFFFF;
	252	PrintAndLog("Card Number Truncated to 16-bits (AWID26): %u", cn);
	253	}
	254	break;
f3cfe428	255	}
52f2df61	256
8fd9bfb0	257	if (param_getchar(Cmd, 4) == 'Q' \|\| param_getchar(Cmd, 4) == 'q')
890ae3dd	258	//t5555 (Q5) BITRATE = (RF-2)/2 (iceman)
8fd9bfb0	259	blocks[0] = T5555_MODULATION_FSK2 \| T5555_INVERT_OUTPUT \| 50<<T5555_BITRATE_SHIFT \| 3<<T5555_MAXBLOCK_SHIFT;
	260
	261	if ( !getAWIDBits(fmtlen, fc, cn, bs)) {
52f2df61	262	PrintAndLog("Error with tag bitstream generation.");
	263	return 1;
	264	}
	265
a126332a	266	blocks[1] = bytebits_to_byte(bs,32);
	267	blocks[2] = bytebits_to_byte(bs+32,32);
	268	blocks[3] = bytebits_to_byte(bs+64,32);
52f2df61	269
8fd9bfb0	270	PrintAndLog("Preparing to clone AWID %u to T55x7 with FC: %u, CN: %u", fmtlen, fc, cn);
52f2df61	271	PrintAndLog("Blk \| Data ");
	272	PrintAndLog("----+------------");
	273	PrintAndLog(" 00 \| 0x%08x", blocks[0]);
	274	PrintAndLog(" 01 \| 0x%08x", blocks[1]);
	275	PrintAndLog(" 02 \| 0x%08x", blocks[2]);
	276	PrintAndLog(" 03 \| 0x%08x", blocks[3]);
	277
	278	UsbCommand resp;
	279	UsbCommand c = {CMD_T55XX_WRITE_BLOCK, {0,0,0}};
f3cfe428	280
a126332a	281	for (uint8_t i=0; i<4; i++) {
52f2df61	282	c.arg[0] = blocks[i];
	283	c.arg[1] = i;
	284	clearCommandBuffer();
	285	SendCommand(&c);
26922aef	286	if (!WaitForResponseTimeout(CMD_ACK, &resp, 1500)){
52f2df61	287	PrintAndLog("Error occurred, device did not respond during write operation.");
52f2df61	288	return -1;
f3cfe428	289	}
	290	}
	291	return 0;
db25599d	292	}
db25599d	293
508b37ba	294	int CmdAWIDBrute(const char *Cmd){
508b37ba	295
10c4231e	296	bool errors = false;
10c4231e	297	uint32_t fc = 0, cn = 0, delay = 1000;
8fd9bfb0	298	uint8_t fmtlen = 0;
508b37ba	299	uint8_t bits[96];
	300	uint8_t *bs = bits;
	301	size_t size = sizeof(bits);
	302	memset(bs, 0x00, size);
10c4231e	303	uint8_t cmdp = 0;
934dfd72	304
10c4231e	305	while(param_getchar(Cmd, cmdp) != 0x00 && !errors) {
	306	switch(param_getchar(Cmd, cmdp)) {
	307	case 'h':
	308	case 'H':
	309	return usage_lf_awid_brute();
	310	case 'f':
	311	case 'F':
	312	fc = param_get32ex(Cmd ,cmdp+1, 0, 10);
	313	if ( !fc )
	314	errors = true;
	315	cmdp += 2;
	316	break;
	317	case 'd':
	318	case 'D':
	319	// delay between attemps, defaults to 1000ms.
	320	delay = param_get32ex(Cmd, cmdp+1, 1000, 10);
	321	cmdp += 2;
	322	break;
	323	case 'c':
	324	case 'C':
	325	cn = param_get32ex(Cmd, cmdp+1, 0, 10);
	326	// truncate cardnumber.
	327	cn &= 0xFFFF;
	328	cmdp += 2;
	329	break;
	330	case 'a':
	331	case 'A':
	332	fmtlen = param_get8(Cmd, cmdp+1);
	333	cmdp += 2;
	334	break;
	335	default:
	336	PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
	337	errors = true;
	338	break;
	339	}
	340	}
	341	if ( fc == 0 )errors = true;
	342	if ( errors ) return usage_lf_awid_brute();
	343
	344	// limit fc according to selected format
8fd9bfb0	345	switch(fmtlen) {
	346	case 50:
	347	if ((fc & 0xFFFF) != fc) {
	348	fc &= 0xFFFF;
10c4231e	349	PrintAndLog("Facility-code truncated to 16-bits (AWID50): %u", fc);
8fd9bfb0	350	}
	351	break;
	352	default:
	353	if ((fc & 0xFF) != fc) {
	354	fc &= 0xFF;
10c4231e	355	PrintAndLog("Facility-code truncated to 8-bits (AWID26): %u", fc);
8fd9bfb0	356	}
	357	break;
	358	}
508b37ba	359
10c4231e	360	// start
10c4231e	361
8fd9bfb0	362	PrintAndLog("Bruteforceing AWID %d Reader", fmtlen);
934dfd72	363	PrintAndLog("Press pm3-button to abort simulation or press key");
508b37ba	364
10c4231e	365	uint16_t up = cn;
	366	uint16_t down = cn;
	367
	368	for (;;){
	369
	370	if (ukbhit()) return sendPing();
	371
	372	// Do one up
	373	if ( up < 0xFFFF )
	374	if ( !sendTry(fmtlen, fc, up++, delay, bs, size)) return 1;
508b37ba	375
10c4231e	376	// Do one down (if cardnumber is given)
10c4231e	377	if ( cn > 1 )
56f1aaa2	378	if ( down > 1 )
10c4231e	379	if ( !sendTry(fmtlen, fc, --down, delay, bs, size)) return 1;
508b37ba	380	}
	381	return 0;
	382	}
	383
a126332a	384	static command_t CommandTable[] = {
f3cfe428	385	{"help", CmdHelp, 1, "This help"},
10c4231e	386	{"fskdemod", CmdAWIDDemodFSK, 0, "Realtime AWID FSK demodulator"},
	387	{"sim", CmdAWIDSim, 0, "AWID tag simulator"},
	388	{"clone", CmdAWIDClone, 0, "Clone AWID to T55x7"},
	389	{"brute", CmdAWIDBrute, 0, "Bruteforce card number against reader"},
f3cfe428	390	{NULL, NULL, 0, NULL}
db25599d	391	};
db25599d	392
a126332a	393	int CmdLFAWID(const char *Cmd) {
4c36581b	394	clearCommandBuffer();
f3cfe428	395	CmdsParse(CommandTable, Cmd);
f3cfe428	396	return 0;
db25599d	397	}
db25599d	398
a126332a	399	int CmdHelp(const char *Cmd) {
f3cfe428	400	CmdsHelp(CommandTable);
f3cfe428	401	return 0;
db25599d	402	}