[proxmark3-svn] / client / cmdlfhid.c

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

#include "cmdlfhid.h"

static int CmdHelp(const char *Cmd);

int usage_lf_hid_wiegand(void){
	PrintAndLog("This command converts facility code/card number to Wiegand code");
  	PrintAndLog("Usage: lf hid wiegand [h] [OEM] [FC] [CN]");

	PrintAndLog("Options:");
	PrintAndLog("       h             - This help");
	PrintAndLog("       OEM           - OEM number / site code");
	PrintAndLog("       FC            - facility code");
	PrintAndLog("       CN            - card number");
	PrintAndLog("Examples:");
	PrintAndLog("      lf hid wiegand 0 101 2001");
	return 0;
}
int usage_lf_hid_sim(void){
	PrintAndLog("HID Tag simulator");
	PrintAndLog("");
	PrintAndLog("Usage:  lf hid sim [h] [ID]");
	PrintAndLog("Options:");
	PrintAndLog("       h	- This help");
	PrintAndLog("       ID  - HID id");
	PrintAndLog("Examples:");
	PrintAndLog("      lf hid sim 224");
	return 0;
}
int usage_lf_hid_clone(void){
	PrintAndLog("Clone HID to T55x7.  Tag must be on antenna. ");
	PrintAndLog("");
	PrintAndLog("Usage:  lf hid clone [h] [ID] <L>");
	PrintAndLog("Options:");
	PrintAndLog("       h	- This help");
	PrintAndLog("       ID  - HID id");
	PrintAndLog("       L   - 84bit ID");
	PrintAndLog("Examples:");
	PrintAndLog("      lf hid clone 224");
	PrintAndLog("      lf hid clone 224 L");
	return 0;
}
int usage_lf_hid_brute(void){
	PrintAndLog("Enables bruteforce of HID readers 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 hid brute [h] a <format> f <facility-code> c <cardnumber> d <delay>");
	PrintAndLog("Options :");
	PrintAndLog("       h                 :  This help");	
	PrintAndLog("       a <format>        :  26|33|34|35|37|40|44|84");
	PrintAndLog("       f <facility-code> :  8-bit value HID 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 hid brute a 26 f 224");
	PrintAndLog("       lf hid brute a 26 f 21 d 2000");
	PrintAndLog("       lf hid brute a 26 f 21 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){

	PrintAndLog("Trying FC: %u; CN: %u", fc, cn);
	
	calcWiegand( fmtlen, fc, cn, bs);

	uint64_t arg1 = bytebits_to_byte(bs,32);
	uint64_t arg2 = bytebits_to_byte(bs+32,32);
	UsbCommand c = {CMD_HID_SIM_TAG, {arg1, arg2, 0}}; 
	clearCommandBuffer();
	SendCommand(&c);
	msleep(delay);
	sendPing();
	return TRUE;
}

int CmdHIDDemodFSK(const char *Cmd) {
	int findone = ( Cmd[0] == '1' ) ? 1 : 0;
	UsbCommand c = {CMD_HID_DEMOD_FSK, {findone, 0 , 0}};
	clearCommandBuffer();
	SendCommand(&c);
	return 0;
}

int CmdHIDSim(const char *Cmd) {
	unsigned int hi = 0, lo = 0;
	int n = 0, i = 0;

	uint8_t ctmp = param_getchar(Cmd, 0);
	if ( strlen(Cmd) == 0 || ctmp == 'H' || ctmp == 'h' ) return usage_lf_hid_sim();
	
	while (sscanf(&Cmd[i++], "%1x", &n ) == 1) {
		hi = (hi << 4) | (lo >> 28);
		lo = (lo << 4) | (n & 0xf);
	}

	PrintAndLog("Emulating tag with ID %x%16x", hi, lo);
	PrintAndLog("Press pm3-button to abort simulation");

	UsbCommand c = {CMD_HID_SIM_TAG, {hi, lo, 0}};
	clearCommandBuffer();
	SendCommand(&c);
	return 0;
}

int CmdHIDClone(const char *Cmd) {
	
	uint32_t hi2 = 0, hi = 0, lo = 0;
	int n = 0, i = 0;
	UsbCommand c;

	uint8_t ctmp = param_getchar(Cmd, 0);
	if ( strlen(Cmd) == 0 || ctmp == 'H' || ctmp == 'h' ) return usage_lf_hid_clone();

	if (strchr(Cmd,'l') != 0) {
		while (sscanf(&Cmd[i++], "%1x", &n ) == 1) {
			hi2 = (hi2 << 4) | (hi >> 28);
			hi = (hi << 4) | (lo >> 28);
			lo = (lo << 4) | (n & 0xf);
		}

		PrintAndLog("Cloning tag with long ID %x%08x%08x", hi2, hi, lo);

		c.d.asBytes[0] = 1;
	} else {
		while (sscanf(&Cmd[i++], "%1x", &n ) == 1) {
			hi = (hi << 4) | (lo >> 28);
			lo = (lo << 4) | (n & 0xf);
		}

		PrintAndLog("Cloning tag with ID %x%08x", hi, lo);

		hi2 = 0;
		c.d.asBytes[0] = 0;
	}

	c.cmd = CMD_HID_CLONE_TAG;
	c.arg[0] = hi2;
	c.arg[1] = hi;
	c.arg[2] = lo;

	clearCommandBuffer();
	SendCommand(&c);
	return 0;
}
// struct to handle wiegand
typedef struct {
	uint8_t  FormatLen;
	uint8_t  SiteCode;
	uint8_t  FacilityCode;
	uint8_t  CardNumber;
	uint8_t* Wiegand;
	size_t   Wiegand_n;
 } wiegand_t;

static void addHIDMarker(uint8_t fmtlen, uint8_t *out) {    
	switch(fmtlen) {
		case 26:{
			uint8_t len = 37;
			uint8_t tmp[len];
			memset(tmp, 0, len);
			uint8_t idx = 37-fmtlen;
			memcpy(tmp+idx, out, fmtlen);
			tmp[idx] = 1; // start sentinel?
			tmp[0]  = 1; // bit indicates that a format smaller than 37 is used
			memcpy(out, tmp, len);
			break;
		}
		case 34:
				// set bit format for less than 37 bit format
				// 5+32= 1
				//*hi = (1 << 5) | (fc >> 15);
			break;
		default:break;
	}
}

// static void getParity34(uint32_t *hi, uint32_t *lo){
	// uint32_t result = 0;
	// int i;

	// // even parity 
	// for (i = 7;i >= 0;i--)
		// result ^= (*hi >> i) & i;
	// for (i = 31;i >= 24;i--)
		// result ^= (*lo >> i) & 1;

	// *hi |= result << 2; 

	// // odd parity bit
	// result = 0;
	// for (i = 23;i >= 1;i--)
		// result ^= (*lo >> i) & 1;

	// *lo |= !result;
// }
// static void getParity37H(uint32_t *hi, uint32_t *lo){
	// uint32_t result = 0;
	// int i;

	// // even parity
	// for (i = 4;i >= 0;i--)
		// result ^= (*hi >> i) & 1;
	// for (i = 31;i >= 20;i--)
		// result ^= (*lo >> i) & 1;
	// *hi |= result << 4;

	// // odd parity
	// result = 0;
	// for (i = 19;i >= 1;i--)
		// result ^= (*lo >> i) & 1;
	// *lo |= result;
// }

//static void calc26(uint16_t fc, uint32_t cardno,  uint8_t *out){
static void calc26(uint16_t fc, uint32_t cardno, uint8_t *out){
	uint8_t wiegand[24];
	num_to_bytebits(fc, 8, wiegand);
	num_to_bytebits(cardno, 16, wiegand+8);
	wiegand_add_parity(out,  wiegand, sizeof(wiegand) );
}
// static void calc33(uint16_t fc, uint32_t cardno,  uint8_t *out){
// }
static void calc34(uint16_t fc, uint32_t cardno, uint8_t *out){
	uint8_t wiegand[32];
	num_to_bytebits(fc, 16, wiegand);
	num_to_bytebits(cardno, 16, wiegand + 16);
  	wiegand_add_parity(out,  wiegand, sizeof(wiegand) );	
}
// static void calc35(uint16_t fc, uint32_t cardno,  uint8_t *out){
	// *lo = ((cardno & 0xFFFFF) << 1) | fc << 21; 
	// *hi = (1 << 5) | ((fc >> 11) & 1);  
// }
static void calc37S(uint16_t fc, uint32_t cardno, uint8_t *out){
	// FC 2 - 17   - 16 bit  
	// cardno 18 - 36  - 19 bit
	// Even P1   1 - 19
	// Odd  P37  19 - 36
	uint8_t wiegand[35];
	num_to_bytebits(fc, 16, wiegand);
	num_to_bytebits(cardno, 19, wiegand + 16);
  	wiegand_add_parity(out,  wiegand, sizeof(wiegand) );
}
static void calc37H(uint64_t cardno, uint8_t *out){
	// SC NONE
	// cardno 1-35 34 bits 
	// Even Parity  0th bit  1-18
	// Odd  Parity 36th bit 19-35
	uint8_t wiegand[37];
	num_to_bytebits( (uint32_t)(cardno >> 32), 2, wiegand);
	num_to_bytebits( (uint32_t)(cardno >> 0), 32, wiegand + 2);
  	wiegand_add_parity(out,  wiegand, sizeof(wiegand) );
	
	printf("%x %x\n", (uint32_t)(cardno >> 32), (uint32_t)cardno );
}
// static void calc40(uint64_t cardno,  uint8_t *out){
	// cardno = (cardno & 0xFFFFFFFFFF);
	// *lo = ((cardno & 0xFFFFFFFF) << 1 ); 
	// *hi = (cardno >> 31);  
// }

void calcWiegand(uint8_t fmtlen, uint16_t fc, uint64_t cardno, uint8_t *bits){
	 uint32_t cn32 = (cardno & 0xFFFFFFFF);
	 switch ( fmtlen ) {
		case 26: calc26(fc, cn32, bits); break;
		// case 33 : calc33(fc, cn32, bits); break;
		case 34: calc34(fc, cn32, bits); break;
		// case 35 : calc35(fc, cn32, bits); break;
		case 37: calc37S(fc, cn32, bits); break;
		case 38: calc37H(cardno, bits); break;
		// case 40 : calc40(cardno, bits);	break;
		// case 44 : { break; }
		// case 84 : { break; }
		default: break;
	}
}	

int CmdHIDWiegand(const char *Cmd) {
	uint32_t oem = 0, fc = 0;
	uint64_t cardnum = 0;
	uint64_t blocks = 0, wiegand = 0; 

	uint8_t bits[96];
	uint8_t *bs = bits;
	memset(bs, 0, sizeof(bits));
	
	uint8_t ctmp = param_getchar(Cmd, 0);
	if ( strlen(Cmd) == 0 || strlen(Cmd) < 3 || ctmp == 'H' || ctmp == 'h' ) return usage_lf_hid_wiegand();

	oem = param_get8(Cmd, 0);
	fc = param_get32ex(Cmd, 1, 0, 10);
	cardnum = param_get64ex(Cmd, 2, 0, 10);

	uint8_t fmtlen[] = {26,33,34,35,37,38,40};
	
	PrintAndLog("HID | OEM | FC   | CN      |  Wiegand  |  HID Formatted");
	PrintAndLog("----+-----+------+---------+-----------+--------------------");
	for (uint8_t i = 0; i < sizeof(fmtlen); i++){
		memset(bits, 0x00, sizeof(bits));
		calcWiegand( fmtlen[i], fc, cardnum, bs);
		printf("ice:: %s", sprint_bin(bs, fmtlen[i]));
		wiegand = (uint64_t)bytebits_to_byte(bs, 32) << 32 | bytebits_to_byte(bs+32, 32);
		
		addHIDMarker(fmtlen[i], bs);	
		printf("ice:: %s", sprint_bin(bs, 37));
		blocks = (uint64_t)bytebits_to_byte(bs, 32) << 32 | bytebits_to_byte(bs+32, 32);
		uint8_t shifts = 64-fmtlen[i];		
		wiegand >>= shifts;
		
		PrintAndLog(" %u | %03u | %03u  | %llu  | %llX  |  %llX",
			fmtlen[i],
			oem,
			fc,
			cardnum,
			wiegand,
			blocks
			);
	}
	PrintAndLog("----+-----+-----+-------+-----------+--------------------");
	return 0;
}

int CmdHIDBrute(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;
	memset(bs, 0, sizeof(bits));
	uint8_t cmdp = 0;
		
	while(param_getchar(Cmd, cmdp) != 0x00 && !errors) {
		switch(param_getchar(Cmd, cmdp)) {
		case 'h':
		case 'H':
			return usage_lf_hid_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;
			bool is_ftm_ok = FALSE;
			uint8_t ftms[] = {26,33,34,35,37};
			for ( uint8_t i = 0; i < sizeof(ftms); i++){
				if ( ftms[i] == fmtlen ) {
					is_ftm_ok = TRUE;
				}
			}
			// negated
			errors = !is_ftm_ok;
			break;
		default:
			PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
			errors = true;
			break;
		}
	}
	if ( fc == 0 ) errors = true;
	if ( errors ) return usage_lf_hid_brute();
	
	PrintAndLog("Brute-forcing HID reader");
	PrintAndLog("Press pm3-button to abort simulation or run another command");
	
	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)) return 1;
		
		// Do one down  (if cardnumber is given)
		if ( cn > 1 )
			if ( down > 1 )
				if ( !sendTry(fmtlen, fc, --down, delay, bs)) return 1;
	}
	return 0;
}

static command_t CommandTable[] = {
	{"help",    CmdHelp,        1, "This help"},
	{"fskdemod",CmdHIDDemodFSK, 0, "Realtime HID FSK demodulator"},
	{"sim",     CmdHIDSim,      0, "HID tag simulator"},
	{"clone",   CmdHIDClone,    0, "Clone HID to T55x7"},
	{"wiegand", CmdHIDWiegand,  1, "Convert facility code/card number to Wiegand code"},
	{"brute",   CmdHIDBrute,	0, "Bruteforce card number against reader"},
	{NULL, NULL, 0, NULL}
};

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

int CmdHelp(const char *Cmd) {
	CmdsHelp(CommandTable);
	return 0;
}
Commit	Line	Data
a553f267	1	//-----------------------------------------------------------------------------
	2	// Copyright (C) 2010 iZsh <izsh at fail0verflow.com>
	3	//
	4	// This code is licensed to you under the terms of the GNU GPL, version 2 or,
	5	// at your option, any later version. See the LICENSE.txt file for the text of
	6	// the license.
	7	//-----------------------------------------------------------------------------
	8	// Low frequency HID commands
	9	//-----------------------------------------------------------------------------
	10
7fe9b0b7	11	#include "cmdlfhid.h"
	12
	13	static int CmdHelp(const char *Cmd);
f4fbfb83	14
3a532acf	15	int usage_lf_hid_wiegand(void){
e13ccb6b	16	PrintAndLog("This command converts facility code/card number to Wiegand code");
758f5ee3	17	PrintAndLog("Usage: lf hid wiegand [h] [OEM] [FC] [CN]");
758f5ee3	18
f4fbfb83	19	PrintAndLog("Options:");
e13ccb6b	20	PrintAndLog(" h - This help");
758f5ee3	21	PrintAndLog(" OEM - OEM number / site code");
e13ccb6b	22	PrintAndLog(" FC - facility code");
e13ccb6b	23	PrintAndLog(" CN - card number");
f4fbfb83	24	PrintAndLog("Examples:");
3a532acf	25	PrintAndLog(" lf hid wiegand 0 101 2001");
	26	return 0;
	27	}
758f5ee3	28	int usage_lf_hid_sim(void){
	29	PrintAndLog("HID Tag simulator");
	30	PrintAndLog("");
	31	PrintAndLog("Usage: lf hid sim [h] [ID]");
	32	PrintAndLog("Options:");
	33	PrintAndLog(" h - This help");
	34	PrintAndLog(" ID - HID id");
	35	PrintAndLog("Examples:");
	36	PrintAndLog(" lf hid sim 224");
	37	return 0;
	38	}
	39	int usage_lf_hid_clone(void){
	40	PrintAndLog("Clone HID to T55x7. Tag must be on antenna. ");
	41	PrintAndLog("");
	42	PrintAndLog("Usage: lf hid clone [h] [ID] <L>");
	43	PrintAndLog("Options:");
	44	PrintAndLog(" h - This help");
	45	PrintAndLog(" ID - HID id");
	46	PrintAndLog(" L - 84bit ID");
	47	PrintAndLog("Examples:");
	48	PrintAndLog(" lf hid clone 224");
	49	PrintAndLog(" lf hid clone 224 L");
	50	return 0;
	51	}
3a532acf	52	int usage_lf_hid_brute(void){
e13ccb6b	53	PrintAndLog("Enables bruteforce of HID readers with specified facility code.");
89603cbd	54	PrintAndLog("This is a attack against reader. if cardnumber is given, it starts with it and goes up / down one step");
89603cbd	55	PrintAndLog("if cardnumber is not given, it starts with 1 and goes up to 65535");
3a532acf	56	PrintAndLog("");
89603cbd	57	PrintAndLog("Usage: lf hid brute [h] a <format> f <facility-code> c <cardnumber> d <delay>");
3a532acf	58	PrintAndLog("Options :");
89603cbd	59	PrintAndLog(" h : This help");
	60	PrintAndLog(" a <format> : 26\|33\|34\|35\|37\|40\|44\|84");
	61	PrintAndLog(" f <facility-code> : 8-bit value HID facility code");
	62	PrintAndLog(" c <cardnumber> : (optional) cardnumber to start with, max 65535");
	63	PrintAndLog(" d <delay> : delay betweens attempts in ms. Default 1000ms");
3a532acf	64	PrintAndLog("");
89603cbd	65	PrintAndLog("Samples:");
	66	PrintAndLog(" lf hid brute a 26 f 224");
	67	PrintAndLog(" lf hid brute a 26 f 21 d 2000");
	68	PrintAndLog(" lf hid brute a 26 f 21 c 200 d 2000");
f4fbfb83	69	return 0;
f4fbfb83	70	}
758f5ee3	71
89603cbd	72	static int sendPing(void){
	73	UsbCommand ping = {CMD_PING, {1, 2, 3}};
	74	SendCommand(&ping);
	75	SendCommand(&ping);
	76	SendCommand(&ping);
	77	clearCommandBuffer();
	78	UsbCommand resp;
	79	if (WaitForResponseTimeout(CMD_ACK, &resp, 1000))
	80	return 0;
	81	return 1;
	82	}
	83	static bool sendTry(uint8_t fmtlen, uint32_t fc, uint32_t cn, uint32_t delay, uint8_t *bs){
	84
	85	PrintAndLog("Trying FC: %u; CN: %u", fc, cn);
	86
	87	calcWiegand( fmtlen, fc, cn, bs);
	88
	89	uint64_t arg1 = bytebits_to_byte(bs,32);
	90	uint64_t arg2 = bytebits_to_byte(bs+32,32);
	91	UsbCommand c = {CMD_HID_SIM_TAG, {arg1, arg2, 0}};
	92	clearCommandBuffer();
	93	SendCommand(&c);
	94	msleep(delay);
	95	sendPing();
	96	return TRUE;
	97	}
	98
3a532acf	99	int CmdHIDDemodFSK(const char *Cmd) {
f4fbfb83	100	int findone = ( Cmd[0] == '1' ) ? 1 : 0;
	101	UsbCommand c = {CMD_HID_DEMOD_FSK, {findone, 0 , 0}};
	102	clearCommandBuffer();
	103	SendCommand(&c);
	104	return 0;
7fe9b0b7	105	}
7fe9b0b7	106
3a532acf	107	int CmdHIDSim(const char *Cmd) {
f4fbfb83	108	unsigned int hi = 0, lo = 0;
f4fbfb83	109	int n = 0, i = 0;
38b20f75	110
758f5ee3	111	uint8_t ctmp = param_getchar(Cmd, 0);
	112	if ( strlen(Cmd) == 0 \|\| ctmp == 'H' \|\| ctmp == 'h' ) return usage_lf_hid_sim();
	113
f4fbfb83	114	while (sscanf(&Cmd[i++], "%1x", &n ) == 1) {
	115	hi = (hi << 4) \| (lo >> 28);
	116	lo = (lo << 4) \| (n & 0xf);
	117	}
38b20f75	118
f4fbfb83	119	PrintAndLog("Emulating tag with ID %x%16x", hi, lo);
f4fbfb83	120	PrintAndLog("Press pm3-button to abort simulation");
38b20f75	121
f4fbfb83	122	UsbCommand c = {CMD_HID_SIM_TAG, {hi, lo, 0}};
	123	clearCommandBuffer();
	124	SendCommand(&c);
	125	return 0;
38b20f75	126	}
38b20f75	127
3a532acf	128	int CmdHIDClone(const char *Cmd) {
758f5ee3	129
8cdf15c2	130	uint32_t hi2 = 0, hi = 0, lo = 0;
f4fbfb83	131	int n = 0, i = 0;
f4fbfb83	132	UsbCommand c;
38b20f75	133
758f5ee3	134	uint8_t ctmp = param_getchar(Cmd, 0);
	135	if ( strlen(Cmd) == 0 \|\| ctmp == 'H' \|\| ctmp == 'h' ) return usage_lf_hid_clone();
	136
f4fbfb83	137	if (strchr(Cmd,'l') != 0) {
	138	while (sscanf(&Cmd[i++], "%1x", &n ) == 1) {
	139	hi2 = (hi2 << 4) \| (hi >> 28);
	140	hi = (hi << 4) \| (lo >> 28);
	141	lo = (lo << 4) \| (n & 0xf);
	142	}
38b20f75	143
f4fbfb83	144	PrintAndLog("Cloning tag with long ID %x%08x%08x", hi2, hi, lo);
38b20f75	145
f4fbfb83	146	c.d.asBytes[0] = 1;
	147	} else {
	148	while (sscanf(&Cmd[i++], "%1x", &n ) == 1) {
	149	hi = (hi << 4) \| (lo >> 28);
	150	lo = (lo << 4) \| (n & 0xf);
	151	}
38b20f75	152
f4fbfb83	153	PrintAndLog("Cloning tag with ID %x%08x", hi, lo);
38b20f75	154
f4fbfb83	155	hi2 = 0;
	156	c.d.asBytes[0] = 0;
	157	}
ec09b62d	158
f4fbfb83	159	c.cmd = CMD_HID_CLONE_TAG;
	160	c.arg[0] = hi2;
	161	c.arg[1] = hi;
	162	c.arg[2] = lo;
	163
	164	clearCommandBuffer();
	165	SendCommand(&c);
	166	return 0;
ec09b62d	167	}
758f5ee3	168	// struct to handle wiegand
	169	typedef struct {
	170	uint8_t FormatLen;
	171	uint8_t SiteCode;
	172	uint8_t FacilityCode;
	173	uint8_t CardNumber;
	174	uint8_t* Wiegand;
	175	size_t Wiegand_n;
	176	} wiegand_t;
	177
fbc2bace	178	static void addHIDMarker(uint8_t fmtlen, uint8_t *out) {
a0a61c91	179	switch(fmtlen) {
fbc2bace	180	case 26:{
	181	uint8_t len = 37;
	182	uint8_t tmp[len];
	183	memset(tmp, 0, len);
	184	uint8_t idx = 37-fmtlen;
	185	memcpy(tmp+idx, out, fmtlen);
	186	tmp[idx] = 1; // start sentinel?
	187	tmp[0] = 1; // bit indicates that a format smaller than 37 is used
	188	memcpy(out, tmp, len);
a0a61c91	189	break;
fbc2bace	190	}
a0a61c91	191	case 34:
	192	// set bit format for less than 37 bit format
	193	// 5+32= 1
	194	//*hi = (1 << 5) \| (fc >> 15);
	195	break;
	196	default:break;
	197	}
	198	}
758f5ee3	199
758f5ee3	200	// static void getParity34(uint32_t hi, uint32_t lo){
	201	// uint32_t result = 0;
	202	// int i;
	203
	204	// // even parity
	205	// for (i = 7;i >= 0;i--)
	206	// result ^= (*hi >> i) & i;
	207	// for (i = 31;i >= 24;i--)
	208	// result ^= (*lo >> i) & 1;
	209
	210	// *hi \|= result << 2;
	211
	212	// // odd parity bit
	213	// result = 0;
	214	// for (i = 23;i >= 1;i--)
	215	// result ^= (*lo >> i) & 1;
	216
	217	// *lo \|= !result;
	218	// }
758f5ee3	219	// static void getParity37H(uint32_t hi, uint32_t lo){
	220	// uint32_t result = 0;
	221	// int i;
	222
	223	// // even parity
	224	// for (i = 4;i >= 0;i--)
	225	// result ^= (*hi >> i) & 1;
	226	// for (i = 31;i >= 20;i--)
	227	// result ^= (*lo >> i) & 1;
	228	// *hi \|= result << 4;
	229
	230	// // odd parity
	231	// result = 0;
	232	// for (i = 19;i >= 1;i--)
	233	// result ^= (*lo >> i) & 1;
	234	// *lo \|= result;
	235	// }
	236
fbc2bace	237	//static void calc26(uint16_t fc, uint32_t cardno, uint8_t *out){
a0a61c91	238	static void calc26(uint16_t fc, uint32_t cardno, uint8_t *out){
758f5ee3	239	uint8_t wiegand[24];
	240	num_to_bytebits(fc, 8, wiegand);
	241	num_to_bytebits(cardno, 16, wiegand+8);
	242	wiegand_add_parity(out, wiegand, sizeof(wiegand) );
f4fbfb83	243	}
fbc2bace	244	// static void calc33(uint16_t fc, uint32_t cardno, uint8_t *out){
758f5ee3	245	// }
a0a61c91	246	static void calc34(uint16_t fc, uint32_t cardno, uint8_t *out){
	247	uint8_t wiegand[32];
	248	num_to_bytebits(fc, 16, wiegand);
	249	num_to_bytebits(cardno, 16, wiegand + 16);
	250	wiegand_add_parity(out, wiegand, sizeof(wiegand) );
	251	}
fbc2bace	252	// static void calc35(uint16_t fc, uint32_t cardno, uint8_t *out){
758f5ee3	253	// *lo = ((cardno & 0xFFFFF) << 1) \| fc << 21;
	254	// *hi = (1 << 5) \| ((fc >> 11) & 1);
	255	// }
a0a61c91	256	static void calc37S(uint16_t fc, uint32_t cardno, uint8_t *out){
	257	// FC 2 - 17 - 16 bit
	258	// cardno 18 - 36 - 19 bit
	259	// Even P1 1 - 19
	260	// Odd P37 19 - 36
	261	uint8_t wiegand[35];
	262	num_to_bytebits(fc, 16, wiegand);
	263	num_to_bytebits(cardno, 19, wiegand + 16);
	264	wiegand_add_parity(out, wiegand, sizeof(wiegand) );
	265	}
	266	static void calc37H(uint64_t cardno, uint8_t *out){
	267	// SC NONE
	268	// cardno 1-35 34 bits
	269	// Even Parity 0th bit 1-18
	270	// Odd Parity 36th bit 19-35
	271	uint8_t wiegand[37];
	272	num_to_bytebits( (uint32_t)(cardno >> 32), 2, wiegand);
	273	num_to_bytebits( (uint32_t)(cardno >> 0), 32, wiegand + 2);
	274	wiegand_add_parity(out, wiegand, sizeof(wiegand) );
	275
	276	printf("%x %x\n", (uint32_t)(cardno >> 32), (uint32_t)cardno );
	277	}
fbc2bace	278	// static void calc40(uint64_t cardno, uint8_t *out){
758f5ee3	279	// cardno = (cardno & 0xFFFFFFFFFF);
	280	// *lo = ((cardno & 0xFFFFFFFF) << 1 );
	281	// *hi = (cardno >> 31);
	282	// }
	283
89603cbd	284	void calcWiegand(uint8_t fmtlen, uint16_t fc, uint64_t cardno, uint8_t *bits){
a0a61c91	285	uint32_t cn32 = (cardno & 0xFFFFFFFF);
a0a61c91	286	switch ( fmtlen ) {
fbc2bace	287	case 26: calc26(fc, cn32, bits); break;
	288	// case 33 : calc33(fc, cn32, bits); break;
	289	case 34: calc34(fc, cn32, bits); break;
	290	// case 35 : calc35(fc, cn32, bits); break;
	291	case 37: calc37S(fc, cn32, bits); break;
	292	case 38: calc37H(cardno, bits); break;
	293	// case 40 : calc40(cardno, bits); break;
758f5ee3	294	// case 44 : { break; }
758f5ee3	295	// case 84 : { break; }
a0a61c91	296	default: break;
a0a61c91	297	}
3a532acf	298	}
	299
	300	int CmdHIDWiegand(const char *Cmd) {
758f5ee3	301	uint32_t oem = 0, fc = 0;
3a532acf	302	uint64_t cardnum = 0;
a0a61c91	303	uint64_t blocks = 0, wiegand = 0;
758f5ee3	304
	305	uint8_t bits[96];
	306	uint8_t *bs = bits;
	307	memset(bs, 0, sizeof(bits));
	308
3a532acf	309	uint8_t ctmp = param_getchar(Cmd, 0);
e1ad67ea	310	if ( strlen(Cmd) == 0 \|\| strlen(Cmd) < 3 \|\| ctmp == 'H' \|\| ctmp == 'h' ) return usage_lf_hid_wiegand();
3a532acf	311
	312	oem = param_get8(Cmd, 0);
	313	fc = param_get32ex(Cmd, 1, 0, 10);
	314	cardnum = param_get64ex(Cmd, 2, 0, 10);
	315
a0a61c91	316	uint8_t fmtlen[] = {26,33,34,35,37,38,40};
758f5ee3	317
a0a61c91	318	PrintAndLog("HID \| OEM \| FC \| CN \| Wiegand \| HID Formatted");
	319	PrintAndLog("----+-----+------+---------+-----------+--------------------");
	320	for (uint8_t i = 0; i < sizeof(fmtlen); i++){
	321	memset(bits, 0x00, sizeof(bits));
	322	calcWiegand( fmtlen[i], fc, cardnum, bs);
fbc2bace	323	printf("ice:: %s", sprint_bin(bs, fmtlen[i]));
a0a61c91	324	wiegand = (uint64_t)bytebits_to_byte(bs, 32) << 32 \| bytebits_to_byte(bs+32, 32);
fbc2bace	325
	326	addHIDMarker(fmtlen[i], bs);
	327	printf("ice:: %s", sprint_bin(bs, 37));
a0a61c91	328	blocks = (uint64_t)bytebits_to_byte(bs, 32) << 32 \| bytebits_to_byte(bs+32, 32);
	329	uint8_t shifts = 64-fmtlen[i];
	330	wiegand >>= shifts;
	331
	332	PrintAndLog(" %u \| %03u \| %03u \| %llu \| %llX \| %llX",
	333	fmtlen[i],
e92948c6	334	oem,
758f5ee3	335	fc,
758f5ee3	336	cardnum,
a0a61c91	337	wiegand,
a0a61c91	338	blocks
758f5ee3	339	);
3a532acf	340	}
e92948c6	341	PrintAndLog("----+-----+-----+-------+-----------+--------------------");
3a532acf	342	return 0;
	343	}
	344
	345	int CmdHIDBrute(const char *Cmd){
	346
89603cbd	347	bool errors = false;
	348	uint32_t fc = 0, cn = 0, delay = 1000;
	349	uint8_t fmtlen = 0;
758f5ee3	350	uint8_t bits[96];
	351	uint8_t *bs = bits;
	352	memset(bs, 0, sizeof(bits));
89603cbd	353	uint8_t cmdp = 0;
	354
	355	while(param_getchar(Cmd, cmdp) != 0x00 && !errors) {
	356	switch(param_getchar(Cmd, cmdp)) {
	357	case 'h':
	358	case 'H':
	359	return usage_lf_hid_brute();
	360	case 'f':
	361	case 'F':
	362	fc = param_get32ex(Cmd ,cmdp+1, 0, 10);
	363	if ( !fc )
	364	errors = true;
	365	cmdp += 2;
	366	break;
	367	case 'd':
	368	case 'D':
	369	// delay between attemps, defaults to 1000ms.
	370	delay = param_get32ex(Cmd, cmdp+1, 1000, 10);
	371	cmdp += 2;
	372	break;
	373	case 'c':
	374	case 'C':
	375	cn = param_get32ex(Cmd, cmdp+1, 0, 10);
	376	// truncate cardnumber.
	377	cn &= 0xFFFF;
	378	cmdp += 2;
	379	break;
	380	case 'a':
	381	case 'A':
	382	fmtlen = param_get8(Cmd, cmdp+1);
	383	cmdp += 2;
7aa24806	384	bool is_ftm_ok = FALSE;
89603cbd	385	uint8_t ftms[] = {26,33,34,35,37};
	386	for ( uint8_t i = 0; i < sizeof(ftms); i++){
	387	if ( ftms[i] == fmtlen ) {
7aa24806	388	is_ftm_ok = TRUE;
89603cbd	389	}
89603cbd	390	}
7aa24806	391	// negated
7aa24806	392	errors = !is_ftm_ok;
89603cbd	393	break;
	394	default:
	395	PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
	396	errors = true;
	397	break;
3a532acf	398	}
3a532acf	399	}
89603cbd	400	if ( fc == 0 ) errors = true;
89603cbd	401	if ( errors ) return usage_lf_hid_brute();
3a532acf	402
e13ccb6b	403	PrintAndLog("Brute-forcing HID reader");
3a532acf	404	PrintAndLog("Press pm3-button to abort simulation or run another command");
89603cbd	405
	406	uint16_t up = cn;
	407	uint16_t down = cn;
	408
	409	for (;;){
	410
	411	if ( offline ) {
	412	printf("Device offline\n");
	413	return 2;
	414	}
	415
3a532acf	416	if (ukbhit()) {
3a532acf	417	PrintAndLog("aborted via keyboard!");
89603cbd	418	return sendPing();
3a532acf	419	}
3a532acf	420
89603cbd	421	// Do one up
	422	if ( up < 0xFFFF )
	423	if ( !sendTry(fmtlen, fc, up++, delay, bs)) return 1;
	424
	425	// Do one down (if cardnumber is given)
	426	if ( cn > 1 )
	427	if ( down > 1 )
	428	if ( !sendTry(fmtlen, fc, --down, delay, bs)) return 1;
3a532acf	429	}
f4fbfb83	430	return 0;
	431	}
	432
	433	static command_t CommandTable[] = {
e13ccb6b	434	{"help", CmdHelp, 1, "This help"},
89603cbd	435	{"fskdemod",CmdHIDDemodFSK, 0, "Realtime HID FSK demodulator"},
	436	{"sim", CmdHIDSim, 0, "HID tag simulator"},
	437	{"clone", CmdHIDClone, 0, "Clone HID to T55x7"},
8cdf15c2	438	{"wiegand", CmdHIDWiegand, 1, "Convert facility code/card number to Wiegand code"},
89603cbd	439	{"brute", CmdHIDBrute, 0, "Bruteforce card number against reader"},
f4fbfb83	440	{NULL, NULL, 0, NULL}
7fe9b0b7	441	};
7fe9b0b7	442
f4fbfb83	443	int CmdLFHID(const char *Cmd) {
4c36581b	444	clearCommandBuffer();
f4fbfb83	445	CmdsParse(CommandTable, Cmd);
f4fbfb83	446	return 0;
7fe9b0b7	447	}
7fe9b0b7	448
f4fbfb83	449	int CmdHelp(const char *Cmd) {
	450	CmdsHelp(CommandTable);
	451	return 0;
7fe9b0b7	452	}