[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) {
	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;   
}

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, 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;

	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	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
87c10b2a	129	int CmdAWIDRead(const char *Cmd) {
	130	CmdLFRead("s");
	131	getSamples("12000", TRUE);
	132	return CmdFSKdemodAWID(Cmd);
	133	}
	134
a126332a	135	//refactored by marshmellow
8fd9bfb0	136	int getAWIDBits(uint8_t fmtlen, uint32_t fc, uint32_t cn, uint8_t *bits) {
	137
	138	// the return bits, preamble 0000 0001
	139	bits[7] = 1;
	140
a126332a	141	uint8_t pre[66];
a126332a	142	memset(pre, 0, sizeof(pre));
52f2df61	143
8fd9bfb0	144	// add formatlength
	145	num_to_bytebits(fmtlen, 8, pre);
	146
	147	// add facilitycode, cardnumber and wiegand parity bits
87c10b2a	148	switch (fmtlen) {
	149	case 26:{
	150	uint8_t wiegand[24];
	151	num_to_bytebits(fc, 8, wiegand);
	152	num_to_bytebits(cn, 16, wiegand+8);
	153	wiegand_add_parity(pre+8, wiegand, sizeof(wiegand));
	154	break;
	155	}
	156	case 34:{
	157	uint8_t wiegand[32];
	158	num_to_bytebits(fc, 8, wiegand);
	159	num_to_bytebits(cn, 24, wiegand+8);
	160	wiegand_add_parity(pre+8, wiegand, sizeof(wiegand));
	161	break;
	162	}
	163	case 37:{
	164	uint8_t wiegand[31];
	165	num_to_bytebits(fc, 13, wiegand);
	166	num_to_bytebits(cn, 18, wiegand+13);
	167	wiegand_add_parity(pre+8, wiegand, sizeof(wiegand));
	168	break;
	169	}
	170	case 50: {
	171	uint8_t wiegand[48];
	172	num_to_bytebits(fc, 16, wiegand);
	173	num_to_bytebits(cn, 32, wiegand+16);
	174	wiegand_add_parity(pre+8, wiegand, sizeof(wiegand));
	175	break;
	176	}
8fd9bfb0	177	}
	178
	179	// add AWID 4bit parity
	180	size_t bitLen = addParity(pre, bits+8, 66, 4, 1);
fcb1cdba	181
a126332a	182	if (bitLen != 88) return 0;
52f2df61	183	return 1;
db25599d	184	}
db25599d	185
87c10b2a	186	static void verify_values(uint8_t fmtlen, uint32_t fc, uint32_t *cn){
	187	switch (*fmtlen) {
	188	case 50:
	189	if ((fc & 0xFFFF) != fc) {
	190	*fc &= 0xFFFF;
	191	PrintAndLog("Facility-Code Truncated to 16-bits (AWID50): %u", *fc);
	192	}
	193	break;
	194	case 37:
	195	if ((fc & 0x1FFF) != fc) {
	196	*fc &= 0x1FFF;
	197	PrintAndLog("Facility-Code Truncated to 13-bits (AWID37): %u", *fc);
	198	}
	199	if ((cn & 0x3FFFF) != cn) {
	200	*cn &= 0x3FFFF;
	201	PrintAndLog("Card Number Truncated to 18-bits (AWID37): %u", *cn);
	202	}
	203	break;
	204	case 34:
	205	if ((fc & 0xFF) != fc) {
	206	*fc &= 0xFF;
	207	PrintAndLog("Facility-Code Truncated to 8-bits (AWID34): %u", *fc);
	208	}
	209	if ((cn & 0xFFFFFF) != cn) {
	210	*cn &= 0xFFFFFF;
	211	PrintAndLog("Card Number Truncated to 24-bits (AWID34): %u", *cn);
	212	}
	213	break;
	214	case 26:
	215	default:
	216	*fmtlen = 26;
	217	if ((fc & 0xFF) != fc) {
	218	*fc &= 0xFF;
	219	PrintAndLog("Facility-Code Truncated to 8-bits (AWID26): %u", *fc);
	220	}
	221	if ((cn & 0xFFFF) != cn) {
	222	*cn &= 0xFFFF;
	223	PrintAndLog("Card Number Truncated to 16-bits (AWID26): %u", *cn);
	224	}
	225	break;
	226	}
	227	}
	228
a126332a	229	int CmdAWIDSim(const char *Cmd) {
8fd9bfb0	230	uint32_t fc = 0, cn = 0;
8fd9bfb0	231	uint8_t fmtlen = 0;
a126332a	232	uint8_t bits[96];
	233	uint8_t *bs = bits;
	234	size_t size = sizeof(bits);
fcb1cdba	235	memset(bs, 0x00, size);
52f2df61	236
fcb1cdba	237	uint64_t arg1 = ( 10 << 8 ) + 8; // fcHigh = 10, fcLow = 8
52f2df61	238	uint64_t arg2 = 50; // clk RF/50 invert=0
52f2df61	239
8fd9bfb0	240	char cmdp = param_getchar(Cmd, 0);
8fd9bfb0	241	if (strlen(Cmd) == 0 \|\| cmdp == 'h' \|\| cmdp == 'H') return usage_lf_awid_sim();
52f2df61	242
8fd9bfb0	243	fmtlen = param_get8(Cmd, 0);
	244	fc = param_get32ex(Cmd, 1, 0, 10);
	245	cn = param_get32ex(Cmd, 2, 0, 10);
	246	if ( !fc \|\| !cn) return usage_lf_awid_sim();
52f2df61	247
87c10b2a	248	verify_values(&fmtlen, &fc, &cn);
8fd9bfb0	249
8fd9bfb0	250	PrintAndLog("Emulating AWID %u -- FC: %u; CN: %u\n", fmtlen, fc, cn);
52f2df61	251	PrintAndLog("Press pm3-button to abort simulation or run another command");
52f2df61	252
8fd9bfb0	253	if (!getAWIDBits(fmtlen, fc, cn, bs)) {
52f2df61	254	PrintAndLog("Error with tag bitstream generation.");
	255	return 1;
	256	}
	257	// AWID uses: fcHigh: 10, fcLow: 8, clk: 50, invert: 0
52f2df61	258	// arg1 --- fcHigh<<8 + fcLow
	259	// arg2 --- Inversion and clk setting
	260	// 96 --- Bitstream length: 96-bits == 12 bytes
a126332a	261	UsbCommand c = {CMD_FSK_SIM_TAG, {arg1, arg2, size}};
a126332a	262	memcpy(c.d.asBytes, bs, size);
52f2df61	263	clearCommandBuffer();
	264	SendCommand(&c);
	265	return 0;
db25599d	266	}
db25599d	267
a126332a	268	int CmdAWIDClone(const char *Cmd) {
a126332a	269	uint32_t blocks[4] = {T55x7_MODULATION_FSK2a \| T55x7_BITRATE_RF_50 \| 3<<T55x7_MAXBLOCK_SHIFT, 0, 0, 0};
8fd9bfb0	270	uint32_t fc = 0, cn = 0;
8fd9bfb0	271	uint8_t fmtlen = 0;
a126332a	272	uint8_t bits[96];
52f2df61	273	uint8_t *bs=bits;
a126332a	274	memset(bs,0,sizeof(bits));
52f2df61	275
8fd9bfb0	276	char cmdp = param_getchar(Cmd, 0);
8fd9bfb0	277	if (strlen(Cmd) == 0 \|\| cmdp == 'h' \|\| cmdp == 'H') return usage_lf_awid_clone();
f3cfe428	278
8fd9bfb0	279	fmtlen = param_get8(Cmd, 0);
	280	fc = param_get32ex(Cmd, 1, 0, 10);
	281	cn = param_get32ex(Cmd, 2, 0, 10);
a126332a	282
8fd9bfb0	283	if ( !fc \|\| !cn) return usage_lf_awid_clone();
8fd9bfb0	284
8fd9bfb0	285	if (param_getchar(Cmd, 4) == 'Q' \|\| param_getchar(Cmd, 4) == 'q')
890ae3dd	286	//t5555 (Q5) BITRATE = (RF-2)/2 (iceman)
8fd9bfb0	287	blocks[0] = T5555_MODULATION_FSK2 \| T5555_INVERT_OUTPUT \| 50<<T5555_BITRATE_SHIFT \| 3<<T5555_MAXBLOCK_SHIFT;
8fd9bfb0	288
87c10b2a	289	verify_values(&fmtlen, &fc, &cn);
87c10b2a	290
8fd9bfb0	291	if ( !getAWIDBits(fmtlen, fc, cn, bs)) {
52f2df61	292	PrintAndLog("Error with tag bitstream generation.");
	293	return 1;
	294	}
	295
a126332a	296	blocks[1] = bytebits_to_byte(bs,32);
	297	blocks[2] = bytebits_to_byte(bs+32,32);
	298	blocks[3] = bytebits_to_byte(bs+64,32);
52f2df61	299
8fd9bfb0	300	PrintAndLog("Preparing to clone AWID %u to T55x7 with FC: %u, CN: %u", fmtlen, fc, cn);
52f2df61	301	PrintAndLog("Blk \| Data ");
	302	PrintAndLog("----+------------");
	303	PrintAndLog(" 00 \| 0x%08x", blocks[0]);
	304	PrintAndLog(" 01 \| 0x%08x", blocks[1]);
	305	PrintAndLog(" 02 \| 0x%08x", blocks[2]);
	306	PrintAndLog(" 03 \| 0x%08x", blocks[3]);
	307
	308	UsbCommand resp;
	309	UsbCommand c = {CMD_T55XX_WRITE_BLOCK, {0,0,0}};
f3cfe428	310
a126332a	311	for (uint8_t i=0; i<4; i++) {
52f2df61	312	c.arg[0] = blocks[i];
	313	c.arg[1] = i;
	314	clearCommandBuffer();
	315	SendCommand(&c);
42c235e7	316	if (!WaitForResponseTimeout(CMD_ACK, &resp, T55XX_WRITE_TIMEOUT)){
52f2df61	317	PrintAndLog("Error occurred, device did not respond during write operation.");
52f2df61	318	return -1;
f3cfe428	319	}
	320	}
	321	return 0;
db25599d	322	}
db25599d	323
508b37ba	324	int CmdAWIDBrute(const char *Cmd){
508b37ba	325
10c4231e	326	bool errors = false;
10c4231e	327	uint32_t fc = 0, cn = 0, delay = 1000;
8fd9bfb0	328	uint8_t fmtlen = 0;
508b37ba	329	uint8_t bits[96];
	330	uint8_t *bs = bits;
	331	size_t size = sizeof(bits);
	332	memset(bs, 0x00, size);
10c4231e	333	uint8_t cmdp = 0;
934dfd72	334
10c4231e	335	while(param_getchar(Cmd, cmdp) != 0x00 && !errors) {
	336	switch(param_getchar(Cmd, cmdp)) {
	337	case 'h':
	338	case 'H':
	339	return usage_lf_awid_brute();
	340	case 'f':
	341	case 'F':
	342	fc = param_get32ex(Cmd ,cmdp+1, 0, 10);
	343	if ( !fc )
	344	errors = true;
	345	cmdp += 2;
	346	break;
	347	case 'd':
	348	case 'D':
	349	// delay between attemps, defaults to 1000ms.
	350	delay = param_get32ex(Cmd, cmdp+1, 1000, 10);
	351	cmdp += 2;
	352	break;
	353	case 'c':
	354	case 'C':
	355	cn = param_get32ex(Cmd, cmdp+1, 0, 10);
	356	// truncate cardnumber.
	357	cn &= 0xFFFF;
	358	cmdp += 2;
	359	break;
	360	case 'a':
	361	case 'A':
	362	fmtlen = param_get8(Cmd, cmdp+1);
	363	cmdp += 2;
	364	break;
	365	default:
	366	PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
	367	errors = true;
	368	break;
	369	}
	370	}
	371	if ( fc == 0 )errors = true;
	372	if ( errors ) return usage_lf_awid_brute();
	373
	374	// limit fc according to selected format
8fd9bfb0	375	switch(fmtlen) {
	376	case 50:
	377	if ((fc & 0xFFFF) != fc) {
	378	fc &= 0xFFFF;
10c4231e	379	PrintAndLog("Facility-code truncated to 16-bits (AWID50): %u", fc);
8fd9bfb0	380	}
	381	break;
	382	default:
	383	if ((fc & 0xFF) != fc) {
	384	fc &= 0xFF;
10c4231e	385	PrintAndLog("Facility-code truncated to 8-bits (AWID26): %u", fc);
8fd9bfb0	386	}
	387	break;
	388	}
508b37ba	389
8fd9bfb0	390	PrintAndLog("Bruteforceing AWID %d Reader", fmtlen);
934dfd72	391	PrintAndLog("Press pm3-button to abort simulation or press key");
508b37ba	392
10c4231e	393	uint16_t up = cn;
	394	uint16_t down = cn;
	395
	396	for (;;){
	397
f121b478	398	if ( offline ) {
	399	printf("Device offline\n");
	400	return 2;
	401	}
89603cbd	402	if (ukbhit()) {
	403	PrintAndLog("aborted via keyboard!");
	404	return sendPing();
	405	}
10c4231e	406
	407	// Do one up
	408	if ( up < 0xFFFF )
	409	if ( !sendTry(fmtlen, fc, up++, delay, bs, size)) return 1;
508b37ba	410
10c4231e	411	// Do one down (if cardnumber is given)
10c4231e	412	if ( cn > 1 )
56f1aaa2	413	if ( down > 1 )
10c4231e	414	if ( !sendTry(fmtlen, fc, --down, delay, bs, size)) return 1;
508b37ba	415	}
	416	return 0;
	417	}
	418
a126332a	419	static command_t CommandTable[] = {
f3cfe428	420	{"help", CmdHelp, 1, "This help"},
10c4231e	421	{"fskdemod", CmdAWIDDemodFSK, 0, "Realtime AWID FSK demodulator"},
87c10b2a	422	{"read", CmdAWIDRead, 0, "Attempt to read and extract tag data"},
10c4231e	423	{"sim", CmdAWIDSim, 0, "AWID tag simulator"},
	424	{"clone", CmdAWIDClone, 0, "Clone AWID to T55x7"},
	425	{"brute", CmdAWIDBrute, 0, "Bruteforce card number against reader"},
f3cfe428	426	{NULL, NULL, 0, NULL}
db25599d	427	};
db25599d	428
a126332a	429	int CmdLFAWID(const char *Cmd) {
4c36581b	430	clearCommandBuffer();
f3cfe428	431	CmdsParse(CommandTable, Cmd);
f3cfe428	432	return 0;
db25599d	433	}
db25599d	434
a126332a	435	int CmdHelp(const char *Cmd) {
f3cfe428	436	CmdsHelp(CommandTable);
f3cfe428	437	return 0;
db25599d	438	}