[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|34|37|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|34|37|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 int sendPing(void){
	UsbCommand ping = {CMD_PING, {1, 2, 3}};
	SendCommand(&ping);
	SendCommand(&ping);	
	SendCommand(&ping);	
	clearCommandBuffer();
	UsbCommand resp;
	if (WaitForResponseTimeout(CMD_ACK, &resp, 1000))
		return 0;
	return 1;
}

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);
	sendPing();
	return TRUE;
}

int CmdAWIDDemodFSK(const char *Cmd) {

	if (Cmd[0] == 'h' || Cmd[0] == 'H') return usage_lf_awid_fskdemod();
	uint8_t findone = (Cmd[0] == '1') ? 1 : 0;
	UsbCommand c = {CMD_AWID_DEMOD_FSK, {findone, 0, 0}};
	clearCommandBuffer();
	SendCommand(&c);
	return 0;   
}

int CmdAWIDRead(const char *Cmd) {
	CmdLFRead("s");
	getSamples("12000", TRUE);
	return CmdFSKdemodAWID(Cmd);
}

//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
	switch (fmtlen) {
		case 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));
			break;
		}
		case 34:{
			uint8_t wiegand[32];
			num_to_bytebits(fc, 8, wiegand);
			num_to_bytebits(cn, 24, wiegand+8);
			wiegand_add_parity(pre+8, wiegand,  sizeof(wiegand));
			break;
		}
		case 37:{
			uint8_t wiegand[31];
			num_to_bytebits(fc, 13, wiegand);
			num_to_bytebits(cn, 18, wiegand+13);
			wiegand_add_parity(pre+8, wiegand,  sizeof(wiegand));
			break;
		}
		case 50: {
			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));
			break;
		}
	}
	
	// add AWID 4bit parity 
	size_t bitLen = addParity(pre, bits+8, 66, 4, 1);

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

static void verify_values(uint8_t *fmtlen, uint32_t *fc, uint32_t *cn){
	switch (*fmtlen) {
		case 50:
			if ((*fc & 0xFFFF) != *fc) {
				*fc &= 0xFFFF;
				PrintAndLog("Facility-Code Truncated to 16-bits (AWID50): %u", *fc);
			}
			break;
		case 37:
			if ((*fc & 0x1FFF) != *fc) {
				*fc &= 0x1FFF;
				PrintAndLog("Facility-Code Truncated to 13-bits (AWID37): %u", *fc);
			}
			if ((*cn & 0x3FFFF) != *cn) {
				*cn &= 0x3FFFF;
				PrintAndLog("Card Number Truncated to 18-bits (AWID37): %u", *cn);
			}			
			break;
		case 34:
			if ((*fc & 0xFF) != *fc) {
				*fc &= 0xFF;
				PrintAndLog("Facility-Code Truncated to 8-bits (AWID34): %u", *fc);
			}
			if ((*cn & 0xFFFFFF) != *cn) {
				*cn &= 0xFFFFFF;
				PrintAndLog("Card Number Truncated to 24-bits (AWID34): %u", *cn);
			}
			break;
		case 26:
		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;
	}
}

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();
	
	verify_values(&fmtlen, &fc, &cn);
	
	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();
	
	if (param_getchar(Cmd, 3) == 'Q' || param_getchar(Cmd, 3) == 'q')
		//t5555 (Q5) BITRATE = (RF-2)/2 (iceman)
		blocks[0] = T5555_MODULATION_FSK2 | T5555_INVERT_OUTPUT | ((50-2)>>1) << T5555_BITRATE_SHIFT | 3<<T5555_MAXBLOCK_SHIFT;

	verify_values(&fmtlen, &fc, &cn);
		
	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, T55XX_WRITE_TIMEOUT)){
			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;
	}
	
	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 ( offline ) {
			printf("Device offline\n");
			return  2;
		}
		if (ukbhit()) {
			PrintAndLog("aborted via keyboard!");
			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"},
	{"read",      CmdAWIDRead,     0, "Attempt to read and extract tag data"},
	{"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");
87c10b2a	39	PrintAndLog(" <format> : format length 26\|34\|37\|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");
87c10b2a	56	PrintAndLog(" <format> : format length 26\|34\|37\|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
f121b478	87	static int sendPing(void){
	88	UsbCommand ping = {CMD_PING, {1, 2, 3}};
	89	SendCommand(&ping);
	90	SendCommand(&ping);
89603cbd	91	SendCommand(&ping);
f121b478	92	clearCommandBuffer();
f121b478	93	UsbCommand resp;
89603cbd	94	if (WaitForResponseTimeout(CMD_ACK, &resp, 1000))
f121b478	95	return 0;
f121b478	96	return 1;
	97	}
	98
05442fa6	99	static bool sendTry(uint8_t fmtlen, uint32_t fc, uint32_t cn, uint32_t delay, uint8_t *bs, size_t bs_len){
10c4231e	100
	101	PrintAndLog("Trying FC: %u; CN: %u", fc, cn);
	102	if ( !getAWIDBits(fmtlen, fc, cn, bs)) {
	103	PrintAndLog("Error with tag bitstream generation.");
	104	return FALSE;
	105	}
	106
	107	uint64_t arg1 = (10<<8) + 8; // fcHigh = 10, fcLow = 8
	108	uint64_t arg2 = 50; // clk RF/50 invert=0
	109	UsbCommand c = {CMD_FSK_SIM_TAG, {arg1, arg2, bs_len}};
	110	memcpy(c.d.asBytes, bs, bs_len);
	111	clearCommandBuffer();
	112	SendCommand(&c);
	113	msleep(delay);
f121b478	114	sendPing();
10c4231e	115	return TRUE;
10c4231e	116	}
f121b478	117
52f2df61	118	int CmdAWIDDemodFSK(const char *Cmd) {
a126332a	119
cb1ba30a	120	if (Cmd[0] == 'h' \|\| Cmd[0] == 'H') return usage_lf_awid_fskdemod();
cb1ba30a	121	uint8_t findone = (Cmd[0] == '1') ? 1 : 0;
a126332a	122	UsbCommand c = {CMD_AWID_DEMOD_FSK, {findone, 0, 0}};
	123	clearCommandBuffer();
	124	SendCommand(&c);
	125	return 0;
db25599d	126	}
db25599d	127
87c10b2a	128	int CmdAWIDRead(const char *Cmd) {
	129	CmdLFRead("s");
	130	getSamples("12000", TRUE);
	131	return CmdFSKdemodAWID(Cmd);
	132	}
	133
a126332a	134	//refactored by marshmellow
8fd9bfb0	135	int getAWIDBits(uint8_t fmtlen, uint32_t fc, uint32_t cn, uint8_t *bits) {
	136
	137	// the return bits, preamble 0000 0001
	138	bits[7] = 1;
	139
a126332a	140	uint8_t pre[66];
a126332a	141	memset(pre, 0, sizeof(pre));
52f2df61	142
8fd9bfb0	143	// add formatlength
	144	num_to_bytebits(fmtlen, 8, pre);
	145
	146	// add facilitycode, cardnumber and wiegand parity bits
87c10b2a	147	switch (fmtlen) {
	148	case 26:{
	149	uint8_t wiegand[24];
	150	num_to_bytebits(fc, 8, wiegand);
	151	num_to_bytebits(cn, 16, wiegand+8);
	152	wiegand_add_parity(pre+8, wiegand, sizeof(wiegand));
	153	break;
	154	}
	155	case 34:{
	156	uint8_t wiegand[32];
	157	num_to_bytebits(fc, 8, wiegand);
	158	num_to_bytebits(cn, 24, wiegand+8);
	159	wiegand_add_parity(pre+8, wiegand, sizeof(wiegand));
	160	break;
	161	}
	162	case 37:{
	163	uint8_t wiegand[31];
	164	num_to_bytebits(fc, 13, wiegand);
	165	num_to_bytebits(cn, 18, wiegand+13);
	166	wiegand_add_parity(pre+8, wiegand, sizeof(wiegand));
	167	break;
	168	}
	169	case 50: {
	170	uint8_t wiegand[48];
	171	num_to_bytebits(fc, 16, wiegand);
	172	num_to_bytebits(cn, 32, wiegand+16);
	173	wiegand_add_parity(pre+8, wiegand, sizeof(wiegand));
	174	break;
	175	}
8fd9bfb0	176	}
	177
	178	// add AWID 4bit parity
	179	size_t bitLen = addParity(pre, bits+8, 66, 4, 1);
fcb1cdba	180
a126332a	181	if (bitLen != 88) return 0;
52f2df61	182	return 1;
db25599d	183	}
db25599d	184
87c10b2a	185	static void verify_values(uint8_t fmtlen, uint32_t fc, uint32_t *cn){
	186	switch (*fmtlen) {
	187	case 50:
	188	if ((fc & 0xFFFF) != fc) {
	189	*fc &= 0xFFFF;
	190	PrintAndLog("Facility-Code Truncated to 16-bits (AWID50): %u", *fc);
	191	}
	192	break;
	193	case 37:
	194	if ((fc & 0x1FFF) != fc) {
	195	*fc &= 0x1FFF;
	196	PrintAndLog("Facility-Code Truncated to 13-bits (AWID37): %u", *fc);
	197	}
	198	if ((cn & 0x3FFFF) != cn) {
	199	*cn &= 0x3FFFF;
	200	PrintAndLog("Card Number Truncated to 18-bits (AWID37): %u", *cn);
	201	}
	202	break;
	203	case 34:
	204	if ((fc & 0xFF) != fc) {
	205	*fc &= 0xFF;
	206	PrintAndLog("Facility-Code Truncated to 8-bits (AWID34): %u", *fc);
	207	}
	208	if ((cn & 0xFFFFFF) != cn) {
	209	*cn &= 0xFFFFFF;
	210	PrintAndLog("Card Number Truncated to 24-bits (AWID34): %u", *cn);
	211	}
	212	break;
	213	case 26:
	214	default:
	215	*fmtlen = 26;
	216	if ((fc & 0xFF) != fc) {
	217	*fc &= 0xFF;
	218	PrintAndLog("Facility-Code Truncated to 8-bits (AWID26): %u", *fc);
	219	}
	220	if ((cn & 0xFFFF) != cn) {
	221	*cn &= 0xFFFF;
	222	PrintAndLog("Card Number Truncated to 16-bits (AWID26): %u", *cn);
	223	}
	224	break;
	225	}
	226	}
	227
a126332a	228	int CmdAWIDSim(const char *Cmd) {
8fd9bfb0	229	uint32_t fc = 0, cn = 0;
8fd9bfb0	230	uint8_t fmtlen = 0;
a126332a	231	uint8_t bits[96];
	232	uint8_t *bs = bits;
	233	size_t size = sizeof(bits);
fcb1cdba	234	memset(bs, 0x00, size);
52f2df61	235
fcb1cdba	236	uint64_t arg1 = ( 10 << 8 ) + 8; // fcHigh = 10, fcLow = 8
52f2df61	237	uint64_t arg2 = 50; // clk RF/50 invert=0
52f2df61	238
8fd9bfb0	239	char cmdp = param_getchar(Cmd, 0);
8fd9bfb0	240	if (strlen(Cmd) == 0 \|\| cmdp == 'h' \|\| cmdp == 'H') return usage_lf_awid_sim();
52f2df61	241
8fd9bfb0	242	fmtlen = param_get8(Cmd, 0);
	243	fc = param_get32ex(Cmd, 1, 0, 10);
	244	cn = param_get32ex(Cmd, 2, 0, 10);
	245	if ( !fc \|\| !cn) return usage_lf_awid_sim();
52f2df61	246
87c10b2a	247	verify_values(&fmtlen, &fc, &cn);
8fd9bfb0	248
8fd9bfb0	249	PrintAndLog("Emulating AWID %u -- FC: %u; CN: %u\n", fmtlen, fc, cn);
52f2df61	250	PrintAndLog("Press pm3-button to abort simulation or run another command");
52f2df61	251
8fd9bfb0	252	if (!getAWIDBits(fmtlen, fc, cn, bs)) {
52f2df61	253	PrintAndLog("Error with tag bitstream generation.");
	254	return 1;
	255	}
	256	// AWID uses: fcHigh: 10, fcLow: 8, clk: 50, invert: 0
52f2df61	257	// arg1 --- fcHigh<<8 + fcLow
	258	// arg2 --- Inversion and clk setting
	259	// 96 --- Bitstream length: 96-bits == 12 bytes
a126332a	260	UsbCommand c = {CMD_FSK_SIM_TAG, {arg1, arg2, size}};
a126332a	261	memcpy(c.d.asBytes, bs, size);
52f2df61	262	clearCommandBuffer();
	263	SendCommand(&c);
	264	return 0;
db25599d	265	}
db25599d	266
a126332a	267	int CmdAWIDClone(const char *Cmd) {
a126332a	268	uint32_t blocks[4] = {T55x7_MODULATION_FSK2a \| T55x7_BITRATE_RF_50 \| 3<<T55x7_MAXBLOCK_SHIFT, 0, 0, 0};
8fd9bfb0	269	uint32_t fc = 0, cn = 0;
8fd9bfb0	270	uint8_t fmtlen = 0;
a126332a	271	uint8_t bits[96];
52f2df61	272	uint8_t *bs=bits;
a126332a	273	memset(bs,0,sizeof(bits));
52f2df61	274
8fd9bfb0	275	char cmdp = param_getchar(Cmd, 0);
8fd9bfb0	276	if (strlen(Cmd) == 0 \|\| cmdp == 'h' \|\| cmdp == 'H') return usage_lf_awid_clone();
f3cfe428	277
8fd9bfb0	278	fmtlen = param_get8(Cmd, 0);
	279	fc = param_get32ex(Cmd, 1, 0, 10);
	280	cn = param_get32ex(Cmd, 2, 0, 10);
a126332a	281
8fd9bfb0	282	if ( !fc \|\| !cn) return usage_lf_awid_clone();
8fd9bfb0	283
ff9c043d	284	if (param_getchar(Cmd, 3) == 'Q' \|\| param_getchar(Cmd, 3) == 'q')
890ae3dd	285	//t5555 (Q5) BITRATE = (RF-2)/2 (iceman)
ff9c043d	286	blocks[0] = T5555_MODULATION_FSK2 \| T5555_INVERT_OUTPUT \| ((50-2)>>1) << T5555_BITRATE_SHIFT \| 3<<T5555_MAXBLOCK_SHIFT;
8fd9bfb0	287
87c10b2a	288	verify_values(&fmtlen, &fc, &cn);
87c10b2a	289
8fd9bfb0	290	if ( !getAWIDBits(fmtlen, fc, cn, bs)) {
52f2df61	291	PrintAndLog("Error with tag bitstream generation.");
	292	return 1;
	293	}
	294
a126332a	295	blocks[1] = bytebits_to_byte(bs,32);
	296	blocks[2] = bytebits_to_byte(bs+32,32);
	297	blocks[3] = bytebits_to_byte(bs+64,32);
52f2df61	298
8fd9bfb0	299	PrintAndLog("Preparing to clone AWID %u to T55x7 with FC: %u, CN: %u", fmtlen, fc, cn);
52f2df61	300	PrintAndLog("Blk \| Data ");
	301	PrintAndLog("----+------------");
	302	PrintAndLog(" 00 \| 0x%08x", blocks[0]);
	303	PrintAndLog(" 01 \| 0x%08x", blocks[1]);
	304	PrintAndLog(" 02 \| 0x%08x", blocks[2]);
	305	PrintAndLog(" 03 \| 0x%08x", blocks[3]);
	306
	307	UsbCommand resp;
	308	UsbCommand c = {CMD_T55XX_WRITE_BLOCK, {0,0,0}};
f3cfe428	309
a126332a	310	for (uint8_t i=0; i<4; i++) {
52f2df61	311	c.arg[0] = blocks[i];
	312	c.arg[1] = i;
	313	clearCommandBuffer();
	314	SendCommand(&c);
42c235e7	315	if (!WaitForResponseTimeout(CMD_ACK, &resp, T55XX_WRITE_TIMEOUT)){
52f2df61	316	PrintAndLog("Error occurred, device did not respond during write operation.");
52f2df61	317	return -1;
f3cfe428	318	}
	319	}
	320	return 0;
db25599d	321	}
db25599d	322
508b37ba	323	int CmdAWIDBrute(const char *Cmd){
508b37ba	324
10c4231e	325	bool errors = false;
10c4231e	326	uint32_t fc = 0, cn = 0, delay = 1000;
8fd9bfb0	327	uint8_t fmtlen = 0;
508b37ba	328	uint8_t bits[96];
	329	uint8_t *bs = bits;
	330	size_t size = sizeof(bits);
	331	memset(bs, 0x00, size);
10c4231e	332	uint8_t cmdp = 0;
934dfd72	333
10c4231e	334	while(param_getchar(Cmd, cmdp) != 0x00 && !errors) {
	335	switch(param_getchar(Cmd, cmdp)) {
	336	case 'h':
	337	case 'H':
	338	return usage_lf_awid_brute();
	339	case 'f':
	340	case 'F':
	341	fc = param_get32ex(Cmd ,cmdp+1, 0, 10);
	342	if ( !fc )
	343	errors = true;
	344	cmdp += 2;
	345	break;
	346	case 'd':
	347	case 'D':
	348	// delay between attemps, defaults to 1000ms.
	349	delay = param_get32ex(Cmd, cmdp+1, 1000, 10);
	350	cmdp += 2;
	351	break;
	352	case 'c':
	353	case 'C':
	354	cn = param_get32ex(Cmd, cmdp+1, 0, 10);
	355	// truncate cardnumber.
	356	cn &= 0xFFFF;
	357	cmdp += 2;
	358	break;
	359	case 'a':
	360	case 'A':
	361	fmtlen = param_get8(Cmd, cmdp+1);
	362	cmdp += 2;
	363	break;
	364	default:
	365	PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
	366	errors = true;
	367	break;
	368	}
	369	}
	370	if ( fc == 0 )errors = true;
	371	if ( errors ) return usage_lf_awid_brute();
	372
	373	// limit fc according to selected format
8fd9bfb0	374	switch(fmtlen) {
	375	case 50:
	376	if ((fc & 0xFFFF) != fc) {
	377	fc &= 0xFFFF;
10c4231e	378	PrintAndLog("Facility-code truncated to 16-bits (AWID50): %u", fc);
8fd9bfb0	379	}
	380	break;
	381	default:
	382	if ((fc & 0xFF) != fc) {
	383	fc &= 0xFF;
10c4231e	384	PrintAndLog("Facility-code truncated to 8-bits (AWID26): %u", fc);
8fd9bfb0	385	}
	386	break;
	387	}
508b37ba	388
8fd9bfb0	389	PrintAndLog("Bruteforceing AWID %d Reader", fmtlen);
934dfd72	390	PrintAndLog("Press pm3-button to abort simulation or press key");
508b37ba	391
10c4231e	392	uint16_t up = cn;
	393	uint16_t down = cn;
	394
	395	for (;;){
	396
f121b478	397	if ( offline ) {
	398	printf("Device offline\n");
	399	return 2;
	400	}
89603cbd	401	if (ukbhit()) {
	402	PrintAndLog("aborted via keyboard!");
	403	return sendPing();
	404	}
10c4231e	405
	406	// Do one up
	407	if ( up < 0xFFFF )
	408	if ( !sendTry(fmtlen, fc, up++, delay, bs, size)) return 1;
508b37ba	409
10c4231e	410	// Do one down (if cardnumber is given)
10c4231e	411	if ( cn > 1 )
56f1aaa2	412	if ( down > 1 )
10c4231e	413	if ( !sendTry(fmtlen, fc, --down, delay, bs, size)) return 1;
508b37ba	414	}
	415	return 0;
	416	}
	417
a126332a	418	static command_t CommandTable[] = {
f3cfe428	419	{"help", CmdHelp, 1, "This help"},
10c4231e	420	{"fskdemod", CmdAWIDDemodFSK, 0, "Realtime AWID FSK demodulator"},
87c10b2a	421	{"read", CmdAWIDRead, 0, "Attempt to read and extract tag data"},
10c4231e	422	{"sim", CmdAWIDSim, 0, "AWID tag simulator"},
	423	{"clone", CmdAWIDClone, 0, "Clone AWID to T55x7"},
	424	{"brute", CmdAWIDBrute, 0, "Bruteforce card number against reader"},
f3cfe428	425	{NULL, NULL, 0, NULL}
db25599d	426	};
db25599d	427
a126332a	428	int CmdLFAWID(const char *Cmd) {
4c36581b	429	clearCommandBuffer();
f3cfe428	430	CmdsParse(CommandTable, Cmd);
f3cfe428	431	return 0;
db25599d	432	}
db25599d	433
a126332a	434	int CmdHelp(const char *Cmd) {
f3cfe428	435	CmdsHelp(CommandTable);
f3cfe428	436	return 0;
db25599d	437	}