[proxmark3-svn] / client / cmdlfnoralsy.c

//-----------------------------------------------------------------------------
//
// 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 Noralsy tag commands
//-----------------------------------------------------------------------------
#include "cmdlfnoralsy.h"

static int CmdHelp(const char *Cmd);

int usage_lf_noralsy_clone(void){
	PrintAndLog("clone a Noralsy tag to a T55x7 tag.");
	PrintAndLog("Usage: lf noralsy clone [h] <card id> <year> <Q5>");
	PrintAndLog("Options:");
	PrintAndLog("      h          : This help");
	PrintAndLog("      <card id>  : Noralsy card ID");
	PrintAndLog("      <year>     : Tag allocation year");
	PrintAndLog("      <Q5>       : specify write to Q5 (t5555 instead of t55x7)");
	PrintAndLog("");
	PrintAndLog("Sample: lf noralsy clone 112233");
	return 0;
}

int usage_lf_noralsy_sim(void) {
	PrintAndLog("Enables simulation of Noralsy card with specified card number.");
	PrintAndLog("Simulation runs until the button is pressed or another USB command is issued.");
	PrintAndLog("");
	PrintAndLog("Usage:  lf noralsy sim [h] <card id> <year>");
	PrintAndLog("Options:");
	PrintAndLog("      h          : This help");
	PrintAndLog("      <card id>  : Noralsy card ID");
	PrintAndLog("      <year>     : Tag allocation year");
	PrintAndLog("");
	PrintAndLog("Sample: lf noralsy sim 112233");
	return 0;
}

static uint8_t noralsy_chksum( uint8_t* bits, uint8_t len) {
    uint8_t sum = 0;
    for (uint8_t i = 0; i < len; i += 4)
        sum ^= bytebits_to_byte(bits+i, 4);
    return sum & 0x0F ;
}
int getnoralsyBits(uint32_t id, uint16_t year, uint8_t *bits) {	
	//preamp
	num_to_bytebits(0xBB0214FF, 32, bits);  // --> Have seen 0xBB0214FF / 0xBB0314FF  UNKNOWN

	//convert ID into BCD-format
	id = DEC2BCD(id);
	year = DEC2BCD(year);
	year &= 0xFF;
	
	uint16_t sub1 = (id & 0xFFF0000) >> 16;
	uint8_t sub2 = (id & 0x000FF00) >> 8;
	uint8_t sub3 = (id & 0x00000FF);
	
	num_to_bytebits(sub1, 12, bits+32);
	num_to_bytebits(year, 8, bits+44);
	num_to_bytebits(0, 4, bits+52);   // --> UNKNOWN. Flag?
	
	num_to_bytebits(sub2, 8, bits+56);
	num_to_bytebits(sub3, 8, bits+64);

	//chksum byte
	uint8_t chksum = noralsy_chksum(bits+32, 40);
	num_to_bytebits(chksum, 4, bits+72);
	chksum = noralsy_chksum(bits, 76);
	num_to_bytebits(chksum, 4, bits+76);
	return 1;
}

//see ASKDemod for what args are accepted
int CmdNoralsyDemod(const char *Cmd) {

	//ASK / Manchester
	bool st = true;
	if (!ASKDemod_ext("32 0 0", FALSE, FALSE, 1, &st)) {
		if (g_debugMode) PrintAndLog("DEBUG: Error - Noralsy: ASK/Manchester Demod failed");
		return 0;
	}
	size_t size = DemodBufferLen;
	int ans = NoralsyDemod_AM(DemodBuffer, &size);
	if (ans < 0){
		if (g_debugMode){
			if (ans == -1)
				PrintAndLog("DEBUG: Error - Noralsy: too few bits found");
			else if (ans == -2)
				PrintAndLog("DEBUG: Error - Noralsy: preamble not found");
			else if (ans == -3)
				PrintAndLog("DEBUG: Error - Noralsy: Size not correct: %d", size);
			else
				PrintAndLog("DEBUG: Error - Noralsy: ans: %d", ans);
		}
		return 0;
	}
	setDemodBuf(DemodBuffer, 96, ans);
	
	//got a good demod
	uint32_t raw1 = bytebits_to_byte(DemodBuffer, 32);
	uint32_t raw2 = bytebits_to_byte(DemodBuffer+32, 32);
	uint32_t raw3 = bytebits_to_byte(DemodBuffer+64, 32);

	uint32_t cardid = ((raw2 & 0xFFF00000) >> 20) << 16;
	cardid |= (raw2 & 0xFF) << 8;
	cardid |= ((raw3 & 0xFF000000) >> 24);
	cardid = BCD2DEC(cardid);

	uint16_t year = (raw2 & 0x000ff000) >> 12;
	year = BCD2DEC(year);
	year += ( year > 60 ) ? 1900: 2000;
	
	// calc checksums
	uint8_t calc1 = noralsy_chksum(DemodBuffer+32, 40);
	uint8_t calc2 = noralsy_chksum(DemodBuffer, 76);
	uint8_t chk1 = 0, chk2 = 0;
	chk1 = bytebits_to_byte(DemodBuffer+72, 4);
	chk2 = bytebits_to_byte(DemodBuffer+76, 4);
	// test checksums
	if ( chk1 != calc1 ) { 
		printf("checksum 1 failed %x - %x\n", chk1, calc1);
		return 0;
	}
	if ( chk2 != calc2 ) {
		printf("checksum 2 failed %x - %x\n", chk2, calc2);	
		return 0;
	}
	
	PrintAndLog("Noralsy Tag Found: Card ID %u, Year: %u Raw: %08X%08X%08X", cardid, year, raw1 ,raw2, raw3);
	return 1;
}

int CmdNoralsyRead(const char *Cmd) {
	CmdLFRead("s");
	getSamples("8000",TRUE);
	return CmdNoralsyDemod(Cmd);
}

int CmdNoralsyClone(const char *Cmd) {
	
	uint16_t year = 0;
	uint32_t id = 0;
	uint32_t blocks[4] = {T55x7_MODULATION_MANCHESTER | T55x7_BITRATE_RF_32 | T55x7_ST_TERMINATOR |3<<T55x7_MAXBLOCK_SHIFT, 0, 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_noralsy_clone();

	id = param_get32ex(Cmd, 0, 0, 10);
	year = param_get32ex(Cmd, 1, 2000, 10);
	
	//Q5
	if (param_getchar(Cmd, 1) == 'Q' || param_getchar(Cmd, 1) == 'q') {
		//t5555 (Q5) BITRATE = (RF-2)/2 (iceman)
		blocks[0] = T5555_MODULATION_MANCHESTER | 32<<T5555_BITRATE_SHIFT | T5555_ST_TERMINATOR | 3<<T5555_MAXBLOCK_SHIFT;
	}
	
	 if ( !getnoralsyBits(id, year, 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 Noralsy to T55x7 with CardId: %u", id);
	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 (int i = 3; i >= 0; --i) {
		c.arg[0] = blocks[i];
		c.arg[1] = i;
		clearCommandBuffer();
		SendCommand(&c);
		if (!WaitForResponseTimeout(CMD_ACK, &resp, 1000)){
			PrintAndLog("Error occurred, device did not respond during write operation.");
			return -1;
		}
	}
    return 0;
}

int CmdNoralsySim(const char *Cmd) {

	uint8_t bits[96];
	uint8_t *bs = bits;
	memset(bs, 0, sizeof(bits));

	uint16_t year = 0;
	uint32_t id = 0;

	char cmdp = param_getchar(Cmd, 0);
	if (strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_noralsy_sim();

	id = param_get32ex(Cmd, 0, 0, 10);
	year = param_get32ex(Cmd, 1, 2000, 10);

	uint8_t clk = 32, encoding = 1, separator = 1, invert = 0;
	uint16_t arg1, arg2;
	size_t size = 96;
	arg1 = clk << 8 | encoding;
	arg2 = invert << 8 | separator;
	
	 if ( !getnoralsyBits(id, year, bs)) {
		PrintAndLog("Error with tag bitstream generation.");
		return 1;
	}	
	
	PrintAndLog("Simulating Noralsy - CardId: %u", id);

	UsbCommand c = {CMD_ASK_SIM_TAG, {arg1, arg2, size}};
	memcpy(c.d.asBytes, bs, size);
	clearCommandBuffer();
	SendCommand(&c);
	return 0;
}

static command_t CommandTable[] = {
    {"help",	CmdHelp,		1, "This help"},
	{"read",	CmdNoralsyRead,	0, "Attempt to read and extract tag data"},
	{"clone",	CmdNoralsyClone,0, "clone Noralsy tag"},
	{"sim",		CmdNoralsySim,	0, "simulate Noralsy tag"},
    {NULL, NULL, 0, NULL}
};

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

int CmdHelp(const char *Cmd) {
    CmdsHelp(CommandTable);
    return 0;
}
Commit	Line	Data
22eece1e	1	//-----------------------------------------------------------------------------
	2	//
	3	// This code is licensed to you under the terms of the GNU GPL, version 2 or,
	4	// at your option, any later version. See the LICENSE.txt file for the text of
	5	// the license.
	6	//-----------------------------------------------------------------------------
9a6bc2fe	7	// Low frequency Noralsy tag commands
22eece1e	8	//-----------------------------------------------------------------------------
22eece1e	9	#include "cmdlfnoralsy.h"
	10
	11	static int CmdHelp(const char *Cmd);
	12
	13	int usage_lf_noralsy_clone(void){
	14	PrintAndLog("clone a Noralsy tag to a T55x7 tag.");
9a6bc2fe	15	PrintAndLog("Usage: lf noralsy clone [h] <card id> <year> <Q5>");
22eece1e	16	PrintAndLog("Options:");
22eece1e	17	PrintAndLog(" h : This help");
9a6bc2fe	18	PrintAndLog(" <card id> : Noralsy card ID");
9a6bc2fe	19	PrintAndLog(" <year> : Tag allocation year");
22eece1e	20	PrintAndLog(" <Q5> : specify write to Q5 (t5555 instead of t55x7)");
	21	PrintAndLog("");
	22	PrintAndLog("Sample: lf noralsy clone 112233");
	23	return 0;
	24	}
	25
	26	int usage_lf_noralsy_sim(void) {
	27	PrintAndLog("Enables simulation of Noralsy card with specified card number.");
	28	PrintAndLog("Simulation runs until the button is pressed or another USB command is issued.");
	29	PrintAndLog("");
9a6bc2fe	30	PrintAndLog("Usage: lf noralsy sim [h] <card id> <year>");
22eece1e	31	PrintAndLog("Options:");
22eece1e	32	PrintAndLog(" h : This help");
9a6bc2fe	33	PrintAndLog(" <card id> : Noralsy card ID");
9a6bc2fe	34	PrintAndLog(" <year> : Tag allocation year");
22eece1e	35	PrintAndLog("");
	36	PrintAndLog("Sample: lf noralsy sim 112233");
	37	return 0;
	38	}
	39
	40	static uint8_t noralsy_chksum( uint8_t* bits, uint8_t len) {
	41	uint8_t sum = 0;
	42	for (uint8_t i = 0; i < len; i += 4)
	43	sum ^= bytebits_to_byte(bits+i, 4);
	44	return sum & 0x0F ;
	45	}
9a6bc2fe	46	int getnoralsyBits(uint32_t id, uint16_t year, uint8_t *bits) {
22eece1e	47	//preamp
	48	num_to_bytebits(0xBB0214FF, 32, bits); // --> Have seen 0xBB0214FF / 0xBB0314FF UNKNOWN
	49
	50	//convert ID into BCD-format
	51	id = DEC2BCD(id);
9a6bc2fe	52	year = DEC2BCD(year);
	53	year &= 0xFF;
	54
22eece1e	55	uint16_t sub1 = (id & 0xFFF0000) >> 16;
	56	uint8_t sub2 = (id & 0x000FF00) >> 8;
	57	uint8_t sub3 = (id & 0x00000FF);
	58
	59	num_to_bytebits(sub1, 12, bits+32);
9a6bc2fe	60	num_to_bytebits(year, 8, bits+44);
	61	num_to_bytebits(0, 4, bits+52); // --> UNKNOWN. Flag?
	62
22eece1e	63	num_to_bytebits(sub2, 8, bits+56);
	64	num_to_bytebits(sub3, 8, bits+64);
	65
	66	//chksum byte
	67	uint8_t chksum = noralsy_chksum(bits+32, 40);
	68	num_to_bytebits(chksum, 4, bits+72);
	69	chksum = noralsy_chksum(bits, 76);
	70	num_to_bytebits(chksum, 4, bits+76);
	71	return 1;
	72	}
	73
	74	//see ASKDemod for what args are accepted
	75	int CmdNoralsyDemod(const char *Cmd) {
	76
	77	//ASK / Manchester
	78	bool st = true;
	79	if (!ASKDemod_ext("32 0 0", FALSE, FALSE, 1, &st)) {
	80	if (g_debugMode) PrintAndLog("DEBUG: Error - Noralsy: ASK/Manchester Demod failed");
	81	return 0;
	82	}
	83	size_t size = DemodBufferLen;
	84	int ans = NoralsyDemod_AM(DemodBuffer, &size);
	85	if (ans < 0){
	86	if (g_debugMode){
	87	if (ans == -1)
	88	PrintAndLog("DEBUG: Error - Noralsy: too few bits found");
	89	else if (ans == -2)
	90	PrintAndLog("DEBUG: Error - Noralsy: preamble not found");
	91	else if (ans == -3)
	92	PrintAndLog("DEBUG: Error - Noralsy: Size not correct: %d", size);
	93	else
	94	PrintAndLog("DEBUG: Error - Noralsy: ans: %d", ans);
	95	}
	96	return 0;
	97	}
	98	setDemodBuf(DemodBuffer, 96, ans);
	99
	100	//got a good demod
	101	uint32_t raw1 = bytebits_to_byte(DemodBuffer, 32);
	102	uint32_t raw2 = bytebits_to_byte(DemodBuffer+32, 32);
	103	uint32_t raw3 = bytebits_to_byte(DemodBuffer+64, 32);
	104
	105	uint32_t cardid = ((raw2 & 0xFFF00000) >> 20) << 16;
	106	cardid \|= (raw2 & 0xFF) << 8;
	107	cardid \|= ((raw3 & 0xFF000000) >> 24);
	108	cardid = BCD2DEC(cardid);
9a6bc2fe	109
	110	uint16_t year = (raw2 & 0x000ff000) >> 12;
	111	year = BCD2DEC(year);
	112	year += ( year > 60 ) ? 1900: 2000;
22eece1e	113
	114	// calc checksums
	115	uint8_t calc1 = noralsy_chksum(DemodBuffer+32, 40);
	116	uint8_t calc2 = noralsy_chksum(DemodBuffer, 76);
	117	uint8_t chk1 = 0, chk2 = 0;
	118	chk1 = bytebits_to_byte(DemodBuffer+72, 4);
	119	chk2 = bytebits_to_byte(DemodBuffer+76, 4);
	120	// test checksums
0a7e86db	121	if ( chk1 != calc1 ) {
	122	printf("checksum 1 failed %x - %x\n", chk1, calc1);
	123	return 0;
	124	}
	125	if ( chk2 != calc2 ) {
	126	printf("checksum 2 failed %x - %x\n", chk2, calc2);
	127	return 0;
	128	}
22eece1e	129
9a6bc2fe	130	PrintAndLog("Noralsy Tag Found: Card ID %u, Year: %u Raw: %08X%08X%08X", cardid, year, raw1 ,raw2, raw3);
22eece1e	131	return 1;
	132	}
	133
	134	int CmdNoralsyRead(const char *Cmd) {
	135	CmdLFRead("s");
9a6bc2fe	136	getSamples("8000",TRUE);
22eece1e	137	return CmdNoralsyDemod(Cmd);
	138	}
	139
	140	int CmdNoralsyClone(const char *Cmd) {
9a6bc2fe	141
9a6bc2fe	142	uint16_t year = 0;
22eece1e	143	uint32_t id = 0;
22eece1e	144	uint32_t blocks[4] = {T55x7_MODULATION_MANCHESTER \| T55x7_BITRATE_RF_32 \| T55x7_ST_TERMINATOR \|3<<T55x7_MAXBLOCK_SHIFT, 0, 0};
22eece1e	145	uint8_t bits[96];
	146	uint8_t *bs = bits;
	147	memset(bs, 0, sizeof(bits));
	148
	149	char cmdp = param_getchar(Cmd, 0);
	150	if (strlen(Cmd) == 0 \|\| cmdp == 'h' \|\| cmdp == 'H') return usage_lf_noralsy_clone();
	151
	152	id = param_get32ex(Cmd, 0, 0, 10);
9a6bc2fe	153	year = param_get32ex(Cmd, 1, 2000, 10);
22eece1e	154
	155	//Q5
	156	if (param_getchar(Cmd, 1) == 'Q' \|\| param_getchar(Cmd, 1) == 'q') {
	157	//t5555 (Q5) BITRATE = (RF-2)/2 (iceman)
	158	blocks[0] = T5555_MODULATION_MANCHESTER \| 32<<T5555_BITRATE_SHIFT \| T5555_ST_TERMINATOR \| 3<<T5555_MAXBLOCK_SHIFT;
	159	}
	160
9a6bc2fe	161	if ( !getnoralsyBits(id, year, bs)) {
22eece1e	162	PrintAndLog("Error with tag bitstream generation.");
	163	return 1;
	164	}
	165
	166	//
	167	blocks[1] = bytebits_to_byte(bs,32);
	168	blocks[2] = bytebits_to_byte(bs+32,32);
	169	blocks[3] = bytebits_to_byte(bs+64,32);
	170
	171	PrintAndLog("Preparing to clone Noralsy to T55x7 with CardId: %u", id);
	172	PrintAndLog("Blk \| Data ");
	173	PrintAndLog("----+------------");
	174	PrintAndLog(" 00 \| 0x%08x", blocks[0]);
	175	PrintAndLog(" 01 \| 0x%08x", blocks[1]);
	176	PrintAndLog(" 02 \| 0x%08x", blocks[2]);
	177	PrintAndLog(" 03 \| 0x%08x", blocks[3]);
	178
	179	UsbCommand resp;
	180	UsbCommand c = {CMD_T55XX_WRITE_BLOCK, {0,0,0}};
	181
	182	for (int i = 3; i >= 0; --i) {
	183	c.arg[0] = blocks[i];
	184	c.arg[1] = i;
	185	clearCommandBuffer();
	186	SendCommand(&c);
	187	if (!WaitForResponseTimeout(CMD_ACK, &resp, 1000)){
	188	PrintAndLog("Error occurred, device did not respond during write operation.");
	189	return -1;
	190	}
	191	}
	192	return 0;
	193	}
	194
	195	int CmdNoralsySim(const char *Cmd) {
	196
	197	uint8_t bits[96];
	198	uint8_t *bs = bits;
	199	memset(bs, 0, sizeof(bits));
9a6bc2fe	200
9a6bc2fe	201	uint16_t year = 0;
22eece1e	202	uint32_t id = 0;
9a6bc2fe	203
22eece1e	204	char cmdp = param_getchar(Cmd, 0);
	205	if (strlen(Cmd) == 0 \|\| cmdp == 'h' \|\| cmdp == 'H') return usage_lf_noralsy_sim();
	206
	207	id = param_get32ex(Cmd, 0, 0, 10);
9a6bc2fe	208	year = param_get32ex(Cmd, 1, 2000, 10);
22eece1e	209
	210	uint8_t clk = 32, encoding = 1, separator = 1, invert = 0;
	211	uint16_t arg1, arg2;
	212	size_t size = 96;
	213	arg1 = clk << 8 \| encoding;
	214	arg2 = invert << 8 \| separator;
	215
9a6bc2fe	216	if ( !getnoralsyBits(id, year, bs)) {
22eece1e	217	PrintAndLog("Error with tag bitstream generation.");
	218	return 1;
	219	}
	220
	221	PrintAndLog("Simulating Noralsy - CardId: %u", id);
	222
	223	UsbCommand c = {CMD_ASK_SIM_TAG, {arg1, arg2, size}};
	224	memcpy(c.d.asBytes, bs, size);
	225	clearCommandBuffer();
	226	SendCommand(&c);
	227	return 0;
	228	}
	229
	230	static command_t CommandTable[] = {
	231	{"help", CmdHelp, 1, "This help"},
	232	{"read", CmdNoralsyRead, 0, "Attempt to read and extract tag data"},
	233	{"clone", CmdNoralsyClone,0, "clone Noralsy tag"},
	234	{"sim", CmdNoralsySim, 0, "simulate Noralsy tag"},
	235	{NULL, NULL, 0, NULL}
	236	};
	237
	238	int CmdLFNoralsy(const char *Cmd) {
	239	clearCommandBuffer();
	240	CmdsParse(CommandTable, Cmd);
	241	return 0;
	242	}
	243
	244	int CmdHelp(const char *Cmd) {
	245	CmdsHelp(CommandTable);
	246	return 0;
	247	}