[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 commands
//-----------------------------------------------------------------------------

#include <stdio.h>      // sscanf
#include "proxmark3.h"  // Definitions, USB controls, etc
#include "ui.h"         // PrintAndLog
#include "cmdparser.h"  // CmdsParse, CmdsHelp
#include "cmdlfawid.h"  // AWID function declarations
#include "lfdemod.h"    // parityTest
#include "util.h"       // weigandparity
#include "protocols.h"  // for T55xx config register definitions
#include "cmdmain.h"
#include "sleep.h"
 
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 boolean 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);
	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 > 0 )
				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	//-----------------------------------------------------------------------------
	10	// Low frequency AWID26 commands
	11	//-----------------------------------------------------------------------------
	12
	13	#include <stdio.h> // sscanf
	14	#include "proxmark3.h" // Definitions, USB controls, etc
	15	#include "ui.h" // PrintAndLog
	16	#include "cmdparser.h" // CmdsParse, CmdsHelp
	17	#include "cmdlfawid.h" // AWID function declarations
	18	#include "lfdemod.h" // parityTest
a126332a	19	#include "util.h" // weigandparity
a126332a	20	#include "protocols.h" // for T55xx config register definitions
7838f4be	21	#include "cmdmain.h"
978920b9	22	#include "sleep.h"
508b37ba	23
db25599d	24	static int CmdHelp(const char *Cmd);
db25599d	25
db25599d	26	int usage_lf_awid_fskdemod(void) {
8fd9bfb0	27	PrintAndLog("Enables AWID compatible reader mode printing details of scanned AWID26 or AWID50 tags.");
a126332a	28	PrintAndLog("By default, values are printed and logged until the button is pressed or another USB command is issued.");
8fd9bfb0	29	PrintAndLog("If the [1] option is provided, reader mode is exited after reading a single AWID card.");
a126332a	30	PrintAndLog("");
890ae3dd	31	PrintAndLog("Usage: lf awid fskdemod [h] [1]");
10c4231e	32	PrintAndLog("Options:");
890ae3dd	33	PrintAndLog(" h : This help");
8fd9bfb0	34	PrintAndLog(" 1 : (optional) stop after reading a single card");
a126332a	35	PrintAndLog("");
10c4231e	36	PrintAndLog("Samples:");
	37	PrintAndLog(" lf awid fskdemod");
	38	PrintAndLog(" lf awid fskdemod 1");
a126332a	39	return 0;
db25599d	40	}
	41
	42	int usage_lf_awid_sim(void) {
8fd9bfb0	43	PrintAndLog("Enables simulation of AWID card with specified facility-code and card number.");
a126332a	44	PrintAndLog("Simulation runs until the button is pressed or another USB command is issued.");
a126332a	45	PrintAndLog("");
890ae3dd	46	PrintAndLog("Usage: lf awid sim [h] <format> <facility-code> <card-number>");
10c4231e	47	PrintAndLog("Options:");
890ae3dd	48	PrintAndLog(" h : This help");
890ae3dd	49	PrintAndLog(" <format> : format length 26\|50");
8fd9bfb0	50	PrintAndLog(" <facility-code> : 8\|16bit value facility code");
890ae3dd	51	PrintAndLog(" <card number> : 16\|32-bit value card number");
a126332a	52	PrintAndLog("");
10c4231e	53	PrintAndLog("Samples:");
8fd9bfb0	54	PrintAndLog(" lf awid sim 26 224 1337");
8fd9bfb0	55	PrintAndLog(" lf awid sim 50 2001 13371337");
a126332a	56	return 0;
db25599d	57	}
	58
	59	int usage_lf_awid_clone(void) {
8fd9bfb0	60	PrintAndLog("Enables cloning of AWID card with specified facility-code and card number onto T55x7.");
a126332a	61	PrintAndLog("The T55x7 must be on the antenna when issuing this command. T55x7 blocks are calculated and printed in the process.");
a126332a	62	PrintAndLog("");
890ae3dd	63	PrintAndLog("Usage: lf awid clone [h] <format> <facility-code> <card-number> [Q5]");
10c4231e	64	PrintAndLog("Options:");
890ae3dd	65	PrintAndLog(" h : This help");
890ae3dd	66	PrintAndLog(" <format> : format length 26\|50");
8fd9bfb0	67	PrintAndLog(" <facility-code> : 8\|16bit value facility code");
890ae3dd	68	PrintAndLog(" <card number> : 16\|32-bit value card number");
890ae3dd	69	PrintAndLog(" Q5 : optional - clone to Q5 (T5555) instead of T55x7 chip");
a126332a	70	PrintAndLog("");
10c4231e	71	PrintAndLog("Samples:");
8fd9bfb0	72	PrintAndLog(" lf awid clone 26 224 1337");
8fd9bfb0	73	PrintAndLog(" lf awid clone 50 2001 13371337");
a126332a	74	return 0;
db25599d	75	}
db25599d	76
508b37ba	77	int usage_lf_awid_brute(void){
8fd9bfb0	78	PrintAndLog("Enables bruteforce of AWID reader with specified facility-code.");
10c4231e	79	PrintAndLog("This is a attack against reader. if cardnumber is given, it starts with it and goes up / down one step");
10c4231e	80	PrintAndLog("if cardnumber is not given, it starts with 1 and goes up to 65535");
508b37ba	81	PrintAndLog("");
10c4231e	82	PrintAndLog("Usage: lf awid brute [h] a <format> f <facility-code> c <cardnumber> d <delay>");
	83	PrintAndLog("Options:");
	84	PrintAndLog(" h : This help");
	85	PrintAndLog(" a <format> : format length 26\|50");
	86	PrintAndLog(" f <facility-code> : 8\|16bit value facility code");
	87	PrintAndLog(" c <cardnumber> : (optional) cardnumber to start with, max 65535");
	88	PrintAndLog(" d <delay> : delay betweens attempts in ms. Default 1000ms");
508b37ba	89	PrintAndLog("");
10c4231e	90	PrintAndLog("Samples:");
	91	PrintAndLog(" lf awid brute a 26 f 224");
	92	PrintAndLog(" lf awid brute a 50 f 2001 d 2000");
	93	PrintAndLog(" lf awid brute a 50 f 2001 c 200 d 2000");
508b37ba	94	return 0;
	95	}
	96
10c4231e	97	static boolean sendTry(uint8_t fmtlen, uint32_t fc, uint32_t cn, uint32_t delay, uint8_t *bs, size_t bs_len){
	98
	99	PrintAndLog("Trying FC: %u; CN: %u", fc, cn);
	100	if ( !getAWIDBits(fmtlen, fc, cn, bs)) {
	101	PrintAndLog("Error with tag bitstream generation.");
	102	return FALSE;
	103	}
	104
	105	uint64_t arg1 = (10<<8) + 8; // fcHigh = 10, fcLow = 8
	106	uint64_t arg2 = 50; // clk RF/50 invert=0
	107	UsbCommand c = {CMD_FSK_SIM_TAG, {arg1, arg2, bs_len}};
	108	memcpy(c.d.asBytes, bs, bs_len);
	109	clearCommandBuffer();
	110	SendCommand(&c);
	111	msleep(delay);
	112	return TRUE;
	113	}
	114	static int sendPing(){
	115	UsbCommand resp;
	116	UsbCommand ping = {CMD_PING};
	117	clearCommandBuffer();
	118	SendCommand(&ping);
	119	if (WaitForResponseTimeout(CMD_ACK, &resp, 1000)) {
	120	PrintAndLog("aborted via keyboard!");
	121	return 0;
	122	}
	123	PrintAndLog("Device didnt respond to ABORT");
	124	return 1;
	125	}
	126
52f2df61	127	int CmdAWIDDemodFSK(const char *Cmd) {
a126332a	128	int findone = 0;
	129	if (Cmd[0] == 'h' \|\| Cmd[0] == 'H') return usage_lf_awid_fskdemod();
	130	if (Cmd[0] == '1') findone = 1;
	131
	132	UsbCommand c = {CMD_AWID_DEMOD_FSK, {findone, 0, 0}};
	133	clearCommandBuffer();
	134	SendCommand(&c);
	135	return 0;
db25599d	136	}
db25599d	137
a126332a	138	//refactored by marshmellow
8fd9bfb0	139	int getAWIDBits(uint8_t fmtlen, uint32_t fc, uint32_t cn, uint8_t *bits) {
	140
	141	// the return bits, preamble 0000 0001
	142	bits[7] = 1;
	143
a126332a	144	uint8_t pre[66];
a126332a	145	memset(pre, 0, sizeof(pre));
52f2df61	146
8fd9bfb0	147	// add formatlength
	148	num_to_bytebits(fmtlen, 8, pre);
	149
	150	// add facilitycode, cardnumber and wiegand parity bits
	151	if ( fmtlen == 26 ) {
	152	uint8_t wiegand[24];
	153	num_to_bytebits(fc, 8, wiegand);
	154	num_to_bytebits(cn, 16, wiegand+8);
	155	wiegand_add_parity(pre+8, wiegand, sizeof(wiegand));
	156	} else {
	157	uint8_t wiegand[48];
	158	num_to_bytebits(fc, 16, wiegand);
	159	num_to_bytebits(cn, 32, wiegand+16);
	160	wiegand_add_parity(pre+8, wiegand, sizeof(wiegand));
	161	}
	162
	163	// add AWID 4bit parity
	164	size_t bitLen = addParity(pre, bits+8, 66, 4, 1);
fcb1cdba	165
a126332a	166	if (bitLen != 88) return 0;
52f2df61	167	return 1;
db25599d	168	}
db25599d	169
a126332a	170	int CmdAWIDSim(const char *Cmd) {
8fd9bfb0	171	uint32_t fc = 0, cn = 0;
8fd9bfb0	172	uint8_t fmtlen = 0;
a126332a	173	uint8_t bits[96];
	174	uint8_t *bs = bits;
	175	size_t size = sizeof(bits);
fcb1cdba	176	memset(bs, 0x00, size);
52f2df61	177
fcb1cdba	178	uint64_t arg1 = ( 10 << 8 ) + 8; // fcHigh = 10, fcLow = 8
52f2df61	179	uint64_t arg2 = 50; // clk RF/50 invert=0
52f2df61	180
8fd9bfb0	181	char cmdp = param_getchar(Cmd, 0);
8fd9bfb0	182	if (strlen(Cmd) == 0 \|\| cmdp == 'h' \|\| cmdp == 'H') return usage_lf_awid_sim();
52f2df61	183
8fd9bfb0	184	fmtlen = param_get8(Cmd, 0);
	185	fc = param_get32ex(Cmd, 1, 0, 10);
	186	cn = param_get32ex(Cmd, 2, 0, 10);
	187	if ( !fc \|\| !cn) return usage_lf_awid_sim();
52f2df61	188
8fd9bfb0	189	switch(fmtlen) {
	190	case 26:
	191	if ((fc & 0xFF) != fc) {
	192	fc &= 0xFF;
	193	PrintAndLog("Facility-Code Truncated to 8-bits (AWID26): %u", fc);
	194	}
	195
	196	if ((cn & 0xFFFF) != cn) {
	197	cn &= 0xFFFF;
	198	PrintAndLog("Card Number Truncated to 16-bits (AWID26): %u", cn);
	199	}
	200	break;
	201	case 50:
	202	if ((fc & 0xFFFF) != fc) {
	203	fc &= 0xFFFF;
	204	PrintAndLog("Facility-Code Truncated to 16-bits (AWID50): %u", fc);
	205	}
	206	break;
	207	default: break;
	208	}
	209
	210	PrintAndLog("Emulating AWID %u -- FC: %u; CN: %u\n", fmtlen, fc, cn);
52f2df61	211	PrintAndLog("Press pm3-button to abort simulation or run another command");
52f2df61	212
8fd9bfb0	213	if (!getAWIDBits(fmtlen, fc, cn, bs)) {
52f2df61	214	PrintAndLog("Error with tag bitstream generation.");
	215	return 1;
	216	}
	217	// AWID uses: fcHigh: 10, fcLow: 8, clk: 50, invert: 0
52f2df61	218	// arg1 --- fcHigh<<8 + fcLow
	219	// arg2 --- Inversion and clk setting
	220	// 96 --- Bitstream length: 96-bits == 12 bytes
a126332a	221	UsbCommand c = {CMD_FSK_SIM_TAG, {arg1, arg2, size}};
a126332a	222	memcpy(c.d.asBytes, bs, size);
52f2df61	223	clearCommandBuffer();
	224	SendCommand(&c);
	225	return 0;
db25599d	226	}
db25599d	227
a126332a	228	int CmdAWIDClone(const char *Cmd) {
a126332a	229	uint32_t blocks[4] = {T55x7_MODULATION_FSK2a \| T55x7_BITRATE_RF_50 \| 3<<T55x7_MAXBLOCK_SHIFT, 0, 0, 0};
8fd9bfb0	230	uint32_t fc = 0, cn = 0;
8fd9bfb0	231	uint8_t fmtlen = 0;
a126332a	232	uint8_t bits[96];
52f2df61	233	uint8_t *bs=bits;
a126332a	234	memset(bs,0,sizeof(bits));
52f2df61	235
8fd9bfb0	236	char cmdp = param_getchar(Cmd, 0);
8fd9bfb0	237	if (strlen(Cmd) == 0 \|\| cmdp == 'h' \|\| cmdp == 'H') return usage_lf_awid_clone();
f3cfe428	238
8fd9bfb0	239	fmtlen = param_get8(Cmd, 0);
	240	fc = param_get32ex(Cmd, 1, 0, 10);
	241	cn = param_get32ex(Cmd, 2, 0, 10);
a126332a	242
8fd9bfb0	243	if ( !fc \|\| !cn) return usage_lf_awid_clone();
	244
	245	switch(fmtlen) {
	246	case 50:
	247	if ((fc & 0xFFFF) != fc) {
	248	fc &= 0xFFFF;
	249	PrintAndLog("Facility-Code Truncated to 16-bits (AWID50): %u", fc);
	250	}
	251	break;
	252	default:
	253	fmtlen = 26;
	254	if ((fc & 0xFF) != fc) {
	255	fc &= 0xFF;
	256	PrintAndLog("Facility-Code Truncated to 8-bits (AWID26): %u", fc);
	257	}
f3cfe428	258
8fd9bfb0	259	if ((cn & 0xFFFF) != cn) {
	260	cn &= 0xFFFF;
	261	PrintAndLog("Card Number Truncated to 16-bits (AWID26): %u", cn);
	262	}
	263	break;
f3cfe428	264	}
52f2df61	265
8fd9bfb0	266	if (param_getchar(Cmd, 4) == 'Q' \|\| param_getchar(Cmd, 4) == 'q')
890ae3dd	267	//t5555 (Q5) BITRATE = (RF-2)/2 (iceman)
8fd9bfb0	268	blocks[0] = T5555_MODULATION_FSK2 \| T5555_INVERT_OUTPUT \| 50<<T5555_BITRATE_SHIFT \| 3<<T5555_MAXBLOCK_SHIFT;
	269
	270	if ( !getAWIDBits(fmtlen, fc, cn, bs)) {
52f2df61	271	PrintAndLog("Error with tag bitstream generation.");
	272	return 1;
	273	}
	274
a126332a	275	blocks[1] = bytebits_to_byte(bs,32);
	276	blocks[2] = bytebits_to_byte(bs+32,32);
	277	blocks[3] = bytebits_to_byte(bs+64,32);
52f2df61	278
8fd9bfb0	279	PrintAndLog("Preparing to clone AWID %u to T55x7 with FC: %u, CN: %u", fmtlen, fc, cn);
52f2df61	280	PrintAndLog("Blk \| Data ");
	281	PrintAndLog("----+------------");
	282	PrintAndLog(" 00 \| 0x%08x", blocks[0]);
	283	PrintAndLog(" 01 \| 0x%08x", blocks[1]);
	284	PrintAndLog(" 02 \| 0x%08x", blocks[2]);
	285	PrintAndLog(" 03 \| 0x%08x", blocks[3]);
	286
	287	UsbCommand resp;
	288	UsbCommand c = {CMD_T55XX_WRITE_BLOCK, {0,0,0}};
f3cfe428	289
a126332a	290	for (uint8_t i=0; i<4; i++) {
52f2df61	291	c.arg[0] = blocks[i];
	292	c.arg[1] = i;
	293	clearCommandBuffer();
	294	SendCommand(&c);
26922aef	295	if (!WaitForResponseTimeout(CMD_ACK, &resp, 1500)){
52f2df61	296	PrintAndLog("Error occurred, device did not respond during write operation.");
52f2df61	297	return -1;
f3cfe428	298	}
	299	}
	300	return 0;
db25599d	301	}
db25599d	302
508b37ba	303	int CmdAWIDBrute(const char *Cmd){
508b37ba	304
10c4231e	305	bool errors = false;
10c4231e	306	uint32_t fc = 0, cn = 0, delay = 1000;
8fd9bfb0	307	uint8_t fmtlen = 0;
508b37ba	308	uint8_t bits[96];
	309	uint8_t *bs = bits;
	310	size_t size = sizeof(bits);
	311	memset(bs, 0x00, size);
10c4231e	312	uint8_t cmdp = 0;
934dfd72	313
10c4231e	314	while(param_getchar(Cmd, cmdp) != 0x00 && !errors) {
	315	switch(param_getchar(Cmd, cmdp)) {
	316	case 'h':
	317	case 'H':
	318	return usage_lf_awid_brute();
	319	case 'f':
	320	case 'F':
	321	fc = param_get32ex(Cmd ,cmdp+1, 0, 10);
	322	if ( !fc )
	323	errors = true;
	324	cmdp += 2;
	325	break;
	326	case 'd':
	327	case 'D':
	328	// delay between attemps, defaults to 1000ms.
	329	delay = param_get32ex(Cmd, cmdp+1, 1000, 10);
	330	cmdp += 2;
	331	break;
	332	case 'c':
	333	case 'C':
	334	cn = param_get32ex(Cmd, cmdp+1, 0, 10);
	335	// truncate cardnumber.
	336	cn &= 0xFFFF;
	337	cmdp += 2;
	338	break;
	339	case 'a':
	340	case 'A':
	341	fmtlen = param_get8(Cmd, cmdp+1);
	342	cmdp += 2;
	343	break;
	344	default:
	345	PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
	346	errors = true;
	347	break;
	348	}
	349	}
	350	if ( fc == 0 )errors = true;
	351	if ( errors ) return usage_lf_awid_brute();
	352
	353	// limit fc according to selected format
8fd9bfb0	354	switch(fmtlen) {
	355	case 50:
	356	if ((fc & 0xFFFF) != fc) {
	357	fc &= 0xFFFF;
10c4231e	358	PrintAndLog("Facility-code truncated to 16-bits (AWID50): %u", fc);
8fd9bfb0	359	}
	360	break;
	361	default:
	362	if ((fc & 0xFF) != fc) {
	363	fc &= 0xFF;
10c4231e	364	PrintAndLog("Facility-code truncated to 8-bits (AWID26): %u", fc);
8fd9bfb0	365	}
	366	break;
	367	}
508b37ba	368
10c4231e	369	// start
10c4231e	370
8fd9bfb0	371	PrintAndLog("Bruteforceing AWID %d Reader", fmtlen);
934dfd72	372	PrintAndLog("Press pm3-button to abort simulation or press key");
508b37ba	373
10c4231e	374	uint16_t up = cn;
	375	uint16_t down = cn;
	376
	377	for (;;){
	378
	379	if (ukbhit()) return sendPing();
	380
	381	// Do one up
	382	if ( up < 0xFFFF )
	383	if ( !sendTry(fmtlen, fc, up++, delay, bs, size)) return 1;
508b37ba	384
10c4231e	385	// Do one down (if cardnumber is given)
	386	if ( cn > 1 )
	387	if ( down > 0 )
	388	if ( !sendTry(fmtlen, fc, --down, delay, bs, size)) return 1;
508b37ba	389	}
	390	return 0;
	391	}
	392
a126332a	393	static command_t CommandTable[] = {
f3cfe428	394	{"help", CmdHelp, 1, "This help"},
10c4231e	395	{"fskdemod", CmdAWIDDemodFSK, 0, "Realtime AWID FSK demodulator"},
	396	{"sim", CmdAWIDSim, 0, "AWID tag simulator"},
	397	{"clone", CmdAWIDClone, 0, "Clone AWID to T55x7"},
	398	{"brute", CmdAWIDBrute, 0, "Bruteforce card number against reader"},
f3cfe428	399	{NULL, NULL, 0, NULL}
db25599d	400	};
db25599d	401
a126332a	402	int CmdLFAWID(const char *Cmd) {
4c36581b	403	clearCommandBuffer();
f3cfe428	404	CmdsParse(CommandTable, Cmd);
f3cfe428	405	return 0;
db25599d	406	}
db25599d	407
a126332a	408	int CmdHelp(const char *Cmd) {
f3cfe428	409	CmdsHelp(CommandTable);
f3cfe428	410	return 0;
db25599d	411	}