[proxmark3-svn] / client / cmdlfjablotron.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 Presco tag commands
//-----------------------------------------------------------------------------
#include "cmdlfjablotron.h"

static int CmdHelp(const char *Cmd);

int usage_lf_jablotron_clone(void){
	PrintAndLog("clone a Jablotron tag to a T55x7 tag.");
	PrintAndLog("Usage: lf jablotron clone [h] <card ID> <Q5>");
	PrintAndLog("Options:");
	PrintAndLog("      h          : This help");
	PrintAndLog("      <card ID>  : jablotron card ID");
	PrintAndLog("      <Q5>       : specify write to Q5 (t5555 instead of t55x7)");
	PrintAndLog("");
	PrintAndLog("Sample: lf jablotron clone 112233");
	return 0;
}

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

static uint8_t jablontron_chksum(uint8_t *bits){
	uint8_t chksum = 0;
	for (int i=16; i < 56; i += 8) {
		chksum += bytebits_to_byte(bits+i,8);
	}
	chksum ^= 0x3A;	
	return chksum;
}

int getJablotronBits(uint64_t fullcode, uint8_t *bits) {	
	//preamp
	num_to_bytebits(0xFFFF, 16, bits);

	//fullcode
	num_to_bytebits(fullcode, 40, bits+16);

	//chksum byte
	uint8_t chksum = jablontron_chksum(bits);
	num_to_bytebits(chksum, 8, bits+56);
	return 1;
}

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

	//Differential Biphase / di-phase (inverted biphase)
	//get binary from ask wave
	if (!ASKbiphaseDemod("0 64 1 0", FALSE)) {
		if (g_debugMode) PrintAndLog("Error Jablotron: ASKbiphaseDemod failed");
		return 0;
	}
	size_t size = DemodBufferLen;
	int ans = JablotronDemod(DemodBuffer, &size);
	if (ans < 0){
		if (g_debugMode){
			// if (ans == -5)
				// PrintAndLog("DEBUG: Error - not enough samples");
			if (ans == -1)
				PrintAndLog("DEBUG: Error - Jablotron too few bits found");
			// else if (ans == -2)
				// PrintAndLog("DEBUG: Error - problem during ASK/Biphase demod");
			else if (ans == -3)
				PrintAndLog("DEBUG: Error - Jablotron Size not correct: %d", size);
			else if (ans == -4)
				PrintAndLog("DEBUG: Error - Jablotron preamble not found");
			else if (ans == -5)
				PrintAndLog("DEBUG: Error - Jablotron checksum failed");
			else
				PrintAndLog("DEBUG: Error - ans: %d", ans);
		}
		return 0;
	}

	setDemodBuf(DemodBuffer+ans, 64, 0);
	
	//got a good demod
	uint32_t raw1 = bytebits_to_byte(DemodBuffer, 32);
	uint32_t raw2 = bytebits_to_byte(DemodBuffer+32, 32);
	uint64_t cardid = (raw1 & 0xFFFF);
	cardid <<= 24;
	cardid |= (raw2 >> 8);
	
	PrintAndLog("Jablotron Tag Found: Card ID %"PRIx64, cardid);
	PrintAndLog("Raw: %08X%08X", raw1 ,raw2);

	uint8_t chksum = raw2 & 0xFF;
	PrintAndLog("Checksum: %02X [%s]",
		chksum,
		(chksum == jablontron_chksum(DemodBuffer)) ? "OK":"FAIL"		
	);
		
	// Printed format: 1410-nn-nnnn-nnnn	
	PrintAndLog("Printed:  1410-%02X-%04X-%04X",
		(raw1 & 0x0000FF00) >> 8,
		(raw1 & 0xFF) << 8 | ((raw2 >> 24) & 0xFF),
		(raw2 & 0x00FFFF00) >> 8
	);	
	return 1;
}

int CmdJablotronRead(const char *Cmd) {
	CmdLFRead("s");
	getSamples("30000",false);
	return CmdJablotronDemod(Cmd);
}

int CmdJablotronClone(const char *Cmd) {

	uint64_t fullcode = 0;
	uint32_t blocks[3] = {T55x7_MODULATION_DIPHASE | T55x7_BITRATE_RF_64 | 2<<T55x7_MAXBLOCK_SHIFT, 0, 0};

	uint8_t bits[64];
	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_jablotron_clone();

	fullcode = param_get64ex(Cmd, 0, 0, 16);
	
	//Q5
	if (param_getchar(Cmd, 1) == 'Q' || param_getchar(Cmd, 1) == 'q') {
		//t5555 (Q5) BITRATE = (RF-2)/2 (iceman)
		blocks[0] = T5555_MODULATION_BIPHASE | T5555_INVERT_OUTPUT | 64<<T5555_BITRATE_SHIFT | 2<<T5555_MAXBLOCK_SHIFT;
	}
	
	// clearing the topbit needed for the preambl detection. 
	if ((fullcode & 0x7FFFFFFFFF) != fullcode) {
		fullcode &= 0x7FFFFFFFFF;
		PrintAndLog("Card Number Truncated to 39bits: %"PRIx64, fullcode);
	}
	
	if ( !getJablotronBits(fullcode, bs)) {
		PrintAndLog("Error with tag bitstream generation.");
		return 1;
	}	
	
	// 
	blocks[1] = bytebits_to_byte(bs,32);
	blocks[2] = bytebits_to_byte(bs+32,32);

	PrintAndLog("Preparing to clone Jablotron to T55x7 with FullCode: %"PRIx64, fullcode);
	PrintAndLog("Blk | Data ");
	PrintAndLog("----+------------");
	PrintAndLog(" 00 | 0x%08x", blocks[0]);
	PrintAndLog(" 01 | 0x%08x", blocks[1]);
	PrintAndLog(" 02 | 0x%08x", blocks[2]);
	
	UsbCommand resp;
	UsbCommand c = {CMD_T55XX_WRITE_BLOCK, {0,0,0}};

	for (int i=4; 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 CmdJablotronSim(const char *Cmd) {
	uint64_t fullcode = 0;

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

	fullcode = param_get64ex(Cmd, 0, 0, 16);

	// clearing the topbit needed for the preambl detection. 
	if ((fullcode & 0x7FFFFFFFFF) != fullcode) {
		fullcode &= 0x7FFFFFFFFF;
		PrintAndLog("Card Number Truncated to 39bits: %"PRIx64, fullcode);
	}
	
	uint8_t clk = 64, encoding = 2, separator = 0, invert = 1;
	uint16_t arg1, arg2;
	size_t size = 64;
	arg1 = clk << 8 | encoding;
	arg2 = invert << 8 | separator;

	PrintAndLog("Simulating Jablotron - FullCode: %"PRIx64, fullcode);

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

static command_t CommandTable[] = {
    {"help",	CmdHelp,			1, "This help"},
	{"read",	CmdJablotronRead,	0, "Attempt to read and extract tag data"},
	{"clone",	CmdJablotronClone,	0, "clone jablotron tag"},
	{"sim",		CmdJablotronSim,	0, "simulate jablotron tag"},
    {NULL, NULL, 0, NULL}
};

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

int CmdHelp(const char *Cmd) {
    CmdsHelp(CommandTable);
    return 0;
}
Commit	Line	Data
6c283951	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	//-----------------------------------------------------------------------------
	7	// Low frequency Presco tag commands
	8	//-----------------------------------------------------------------------------
	9	#include "cmdlfjablotron.h"
	10
	11	static int CmdHelp(const char *Cmd);
	12
	13	int usage_lf_jablotron_clone(void){
	14	PrintAndLog("clone a Jablotron tag to a T55x7 tag.");
8ae9b358	15	PrintAndLog("Usage: lf jablotron clone [h] <card ID> <Q5>");
	16	PrintAndLog("Options:");
	17	PrintAndLog(" h : This help");
	18	PrintAndLog(" <card ID> : jablotron card ID");
	19	PrintAndLog(" <Q5> : specify write to Q5 (t5555 instead of t55x7)");
6c283951	20	PrintAndLog("");
514ddaa2	21	PrintAndLog("Sample: lf jablotron clone 112233");
6c283951	22	return 0;
	23	}
	24
	25	int usage_lf_jablotron_sim(void) {
	26	PrintAndLog("Enables simulation of jablotron card with specified card number.");
	27	PrintAndLog("Simulation runs until the button is pressed or another USB command is issued.");
6c283951	28	PrintAndLog("");
8ae9b358	29	PrintAndLog("Usage: lf jablotron sim [h] <card ID>");
	30	PrintAndLog("Options:");
	31	PrintAndLog(" h : This help");
	32	PrintAndLog(" <card ID> : jablotron card ID");
6c283951	33	PrintAndLog("");
514ddaa2	34	PrintAndLog("Sample: lf jablotron sim 112233");
6c283951	35	return 0;
	36	}
	37
29ce214c	38	static uint8_t jablontron_chksum(uint8_t *bits){
	39	uint8_t chksum = 0;
	40	for (int i=16; i < 56; i += 8) {
	41	chksum += bytebits_to_byte(bits+i,8);
	42	}
	43	chksum ^= 0x3A;
	44	return chksum;
	45	}
	46
6c283951	47	int getJablotronBits(uint64_t fullcode, uint8_t *bits) {
	48	//preamp
	49	num_to_bytebits(0xFFFF, 16, bits);
	50
	51	//fullcode
	52	num_to_bytebits(fullcode, 40, bits+16);
	53
	54	//chksum byte
29ce214c	55	uint8_t chksum = jablontron_chksum(bits);
29ce214c	56	num_to_bytebits(chksum, 8, bits+56);
6c283951	57	return 1;
	58	}
	59
	60	//see ASKDemod for what args are accepted
	61	int CmdJablotronDemod(const char *Cmd) {
	62
	63	//Differential Biphase / di-phase (inverted biphase)
	64	//get binary from ask wave
	65	if (!ASKbiphaseDemod("0 64 1 0", FALSE)) {
	66	if (g_debugMode) PrintAndLog("Error Jablotron: ASKbiphaseDemod failed");
	67	return 0;
	68	}
	69	size_t size = DemodBufferLen;
	70	int ans = JablotronDemod(DemodBuffer, &size);
	71	if (ans < 0){
	72	if (g_debugMode){
	73	// if (ans == -5)
	74	// PrintAndLog("DEBUG: Error - not enough samples");
29ce214c	75	if (ans == -1)
29ce214c	76	PrintAndLog("DEBUG: Error - Jablotron too few bits found");
6c283951	77	// else if (ans == -2)
6c283951	78	// PrintAndLog("DEBUG: Error - problem during ASK/Biphase demod");
29ce214c	79	else if (ans == -3)
29ce214c	80	PrintAndLog("DEBUG: Error - Jablotron Size not correct: %d", size);
6c283951	81	else if (ans == -4)
6c283951	82	PrintAndLog("DEBUG: Error - Jablotron preamble not found");
29ce214c	83	else if (ans == -5)
29ce214c	84	PrintAndLog("DEBUG: Error - Jablotron checksum failed");
6c283951	85	else
	86	PrintAndLog("DEBUG: Error - ans: %d", ans);
	87	}
	88	return 0;
	89	}
29ce214c	90
	91	setDemodBuf(DemodBuffer+ans, 64, 0);
	92
6c283951	93	//got a good demod
29ce214c	94	uint32_t raw1 = bytebits_to_byte(DemodBuffer, 32);
	95	uint32_t raw2 = bytebits_to_byte(DemodBuffer+32, 32);
	96	uint64_t cardid = (raw1 & 0xFFFF);
	97	cardid <<= 24;
6c283951	98	cardid \|= (raw2 >> 8);
6c283951	99
29ce214c	100	PrintAndLog("Jablotron Tag Found: Card ID %"PRIx64, cardid);
6c283951	101	PrintAndLog("Raw: %08X%08X", raw1 ,raw2);
6c283951	102
29ce214c	103	uint8_t chksum = raw2 & 0xFF;
	104	PrintAndLog("Checksum: %02X [%s]",
	105	chksum,
	106	(chksum == jablontron_chksum(DemodBuffer)) ? "OK":"FAIL"
	107	);
	108
	109	// Printed format: 1410-nn-nnnn-nnnn
	110	PrintAndLog("Printed: 1410-%02X-%04X-%04X",
	111	(raw1 & 0x0000FF00) >> 8,
	112	(raw1 & 0xFF) << 8 \| ((raw2 >> 24) & 0xFF),
	113	(raw2 & 0x00FFFF00) >> 8
	114	);
6c283951	115	return 1;
	116	}
	117
	118	int CmdJablotronRead(const char *Cmd) {
6c283951	119	CmdLFRead("s");
6c283951	120	getSamples("30000",false);
6c283951	121	return CmdJablotronDemod(Cmd);
	122	}
	123
	124	int CmdJablotronClone(const char *Cmd) {
	125
	126	uint64_t fullcode = 0;
	127	uint32_t blocks[3] = {T55x7_MODULATION_DIPHASE \| T55x7_BITRATE_RF_64 \| 2<<T55x7_MAXBLOCK_SHIFT, 0, 0};
	128
	129	uint8_t bits[64];
	130	uint8_t *bs = bits;
	131	memset(bs, 0, sizeof(bits));
	132
	133	char cmdp = param_getchar(Cmd, 0);
	134	if (strlen(Cmd) == 0 \|\| cmdp == 'h' \|\| cmdp == 'H') return usage_lf_jablotron_clone();
	135
8ae9b358	136	fullcode = param_get64ex(Cmd, 0, 0, 16);
6c283951	137
6c283951	138	//Q5
8ae9b358	139	if (param_getchar(Cmd, 1) == 'Q' \|\| param_getchar(Cmd, 1) == 'q') {
6c283951	140	//t5555 (Q5) BITRATE = (RF-2)/2 (iceman)
	141	blocks[0] = T5555_MODULATION_BIPHASE \| T5555_INVERT_OUTPUT \| 64<<T5555_BITRATE_SHIFT \| 2<<T5555_MAXBLOCK_SHIFT;
	142	}
	143
29ce214c	144	// clearing the topbit needed for the preambl detection.
	145	if ((fullcode & 0x7FFFFFFFFF) != fullcode) {
	146	fullcode &= 0x7FFFFFFFFF;
f5538c1c	147	PrintAndLog("Card Number Truncated to 39bits: %"PRIx64, fullcode);
6c283951	148	}
29ce214c	149
6c283951	150	if ( !getJablotronBits(fullcode, bs)) {
	151	PrintAndLog("Error with tag bitstream generation.");
	152	return 1;
	153	}
	154
	155	//
	156	blocks[1] = bytebits_to_byte(bs,32);
	157	blocks[2] = bytebits_to_byte(bs+32,32);
	158
29ce214c	159	PrintAndLog("Preparing to clone Jablotron to T55x7 with FullCode: %"PRIx64, fullcode);
6c283951	160	PrintAndLog("Blk \| Data ");
	161	PrintAndLog("----+------------");
	162	PrintAndLog(" 00 \| 0x%08x", blocks[0]);
	163	PrintAndLog(" 01 \| 0x%08x", blocks[1]);
	164	PrintAndLog(" 02 \| 0x%08x", blocks[2]);
	165
	166	UsbCommand resp;
	167	UsbCommand c = {CMD_T55XX_WRITE_BLOCK, {0,0,0}};
	168
	169	for (int i=4; i>=0; i--) {
	170	c.arg[0] = blocks[i];
	171	c.arg[1] = i;
	172	clearCommandBuffer();
	173	SendCommand(&c);
	174	if (!WaitForResponseTimeout(CMD_ACK, &resp, 1000)){
	175	PrintAndLog("Error occurred, device did not respond during write operation.");
	176	return -1;
	177	}
	178	}
	179	return 0;
	180	}
	181
	182	int CmdJablotronSim(const char *Cmd) {
	183	uint64_t fullcode = 0;
	184
	185	char cmdp = param_getchar(Cmd, 0);
	186	if (strlen(Cmd) == 0 \|\| cmdp == 'h' \|\| cmdp == 'H') return usage_lf_jablotron_sim();
	187
8ae9b358	188	fullcode = param_get64ex(Cmd, 0, 0, 16);
29ce214c	189
	190	// clearing the topbit needed for the preambl detection.
	191	if ((fullcode & 0x7FFFFFFFFF) != fullcode) {
	192	fullcode &= 0x7FFFFFFFFF;
f5538c1c	193	PrintAndLog("Card Number Truncated to 39bits: %"PRIx64, fullcode);
29ce214c	194	}
6c283951	195
	196	uint8_t clk = 64, encoding = 2, separator = 0, invert = 1;
	197	uint16_t arg1, arg2;
	198	size_t size = 64;
	199	arg1 = clk << 8 \| encoding;
	200	arg2 = invert << 8 \| separator;
	201
29ce214c	202	PrintAndLog("Simulating Jablotron - FullCode: %"PRIx64, fullcode);
6c283951	203
	204	UsbCommand c = {CMD_ASK_SIM_TAG, {arg1, arg2, size}};
	205	getJablotronBits(fullcode, c.d.asBytes);
	206	clearCommandBuffer();
	207	SendCommand(&c);
	208	return 0;
	209	}
	210
	211	static command_t CommandTable[] = {
	212	{"help", CmdHelp, 1, "This help"},
8ae9b358	213	{"read", CmdJablotronRead, 0, "Attempt to read and extract tag data"},
	214	{"clone", CmdJablotronClone, 0, "clone jablotron tag"},
	215	{"sim", CmdJablotronSim, 0, "simulate jablotron tag"},
6c283951	216	{NULL, NULL, 0, NULL}
	217	};
	218
	219	int CmdLFJablotron(const char *Cmd) {
	220	clearCommandBuffer();
	221	CmdsParse(CommandTable, Cmd);
	222	return 0;
	223	}
	224
	225	int CmdHelp(const char *Cmd) {
	226	CmdsHelp(CommandTable);
	227	return 0;
	228	}