[proxmark3-svn] / client / cmdlfpyramid.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 Farpoint / Pyramid tag commands
//-----------------------------------------------------------------------------
#include <string.h>
#include <inttypes.h>
#include "cmdlfpyramid.h"
#include "proxmark3.h"
#include "ui.h"
#include "util.h"
#include "graph.h"
#include "cmdparser.h"
#include "cmddata.h"
#include "cmdmain.h"
#include "cmdlf.h"
#include "protocols.h"  // for T55xx config register definitions
#include "lfdemod.h"    // parityTest
#include "crc.h"

static int CmdHelp(const char *Cmd);

int usage_lf_pyramid_clone(void){
	PrintAndLog("clone a Farpointe/Pyramid tag to a T55x7 tag.");
	PrintAndLog("The facility-code is 8-bit and the card number is 16-bit.  Larger values are truncated. ");
	PrintAndLog("Currently work only on 26bit");
	PrintAndLog("");
	PrintAndLog("Usage: lf pyramid clone <Facility-Code> <Card-Number>");
	PrintAndLog("Options :");
	PrintAndLog("  <Facility-Code> :  8-bit value facility code");
	PrintAndLog("  <Card Number>   : 16-bit value card number");
	PrintAndLog("  Q5              : optional - clone to Q5 (T5555) instead of T55x7 chip");
	PrintAndLog("");
	PrintAndLog("Sample  : lf pyramid clone 123 11223");
	return 0;
}

int usage_lf_pyramid_sim(void) {
	PrintAndLog("Enables simulation of Farpointe/Pyramid card with specified card number.");
	PrintAndLog("Simulation runs until the button is pressed or another USB command is issued.");
	PrintAndLog("The facility-code is 8-bit and the card number is 16-bit.  Larger values are truncated.");
	PrintAndLog("Currently work only on 26bit");
	PrintAndLog("");
	PrintAndLog("Usage:  lf pyramid sim <Card-Number>");
	PrintAndLog("Options :");
	PrintAndLog("  <Facility-Code> :  8-bit value facility code");
	PrintAndLog("  <Card Number>   : 16-bit value card number");
	PrintAndLog("");
	PrintAndLog("Sample  : lf pyramid sim 123 11223");
	return 0;
}

// Works for 26bits.
int GetPyramidBits(uint32_t fc, uint32_t cn, uint8_t *pyramidBits) {

	uint8_t pre[128];
	memset(pre, 0x00, sizeof(pre));

	// format start bit
	pre[79] = 1;
	
	// Get 26 wiegand from FacilityCode, CardNumber	
	uint8_t wiegand[24];
	memset(wiegand, 0x00, sizeof(wiegand));
	num_to_bytebits(fc, 8, wiegand);
	num_to_bytebits(cn, 16, wiegand+8);

	// add wiegand parity bits (dest, source, len)
	wiegand_add_parity(pre+80, wiegand, 24);
	
	// add paritybits	(bitsource, dest, sourcelen, paritylen, parityType (odd, even,)
	addParity(pre+8, pyramidBits+8, 102, 8, 1);

	// add checksum		
	uint8_t csBuff[13];
	for (uint8_t i = 0; i < 13; i++)
		csBuff[i] = bytebits_to_byte(pyramidBits + 16 + (i*8), 8);

	uint32_t crc = CRC8Maxim(csBuff, 13);
	num_to_bytebits(crc, 8, pyramidBits+120);
	return 1;
}

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

int CmdPyramidClone(const char *Cmd) {

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

	uint32_t facilitycode=0, cardnumber=0, fc = 0, cn = 0;
	uint32_t blocks[5];
	uint8_t i;
	uint8_t bs[128];
	memset(bs, 0x00, sizeof(bs));

	if (sscanf(Cmd, "%u %u", &fc, &cn ) != 2) return usage_lf_pyramid_clone();

	facilitycode = (fc & 0x000000FF);
	cardnumber = (cn & 0x0000FFFF);
	
	if ( !GetPyramidBits(facilitycode, cardnumber, bs)) {
		PrintAndLog("Error with tag bitstream generation.");
		return 1;
	}

	//Pyramid - compat mode, FSK2a, data rate 50, 4 data blocks
	blocks[0] = T55x7_MODULATION_FSK2a | T55x7_BITRATE_RF_50 | 4<<T55x7_MAXBLOCK_SHIFT;

	if (param_getchar(Cmd, 3) == 'Q' || param_getchar(Cmd, 3) == 'q')
		blocks[0] = T5555_MODULATION_FSK2 | T5555_INVERT_OUTPUT | 50<<T5555_BITRATE_SHIFT | 4<<T5555_MAXBLOCK_SHIFT;

	blocks[1] = bytebits_to_byte(bs,32);
	blocks[2] = bytebits_to_byte(bs+32,32);
	blocks[3] = bytebits_to_byte(bs+64,32);
	blocks[4] = bytebits_to_byte(bs+96,32);

	PrintAndLog("Preparing to clone Farpointe/Pyramid to T55x7 with Facility Code: %u, Card Number: %u", facilitycode, cardnumber);
	PrintAndLog("Blk | Data ");
	PrintAndLog("----+------------");
	for ( i = 0; i<5; ++i )
		PrintAndLog(" %02d | %08" PRIx32, i, blocks[i]);

	UsbCommand resp;
	UsbCommand c = {CMD_T55XX_WRITE_BLOCK, {0,0,0}};

	for ( i = 0; i<5; ++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 CmdPyramidSim(const char *Cmd) {

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

	uint32_t facilitycode = 0, cardnumber = 0, fc = 0, cn = 0;

	uint8_t bs[128];
	size_t size = sizeof(bs);
	memset(bs, 0x00, size);

	// Pyramid uses:  fcHigh: 10, fcLow: 8, clk: 50, invert: 0
	uint64_t arg1, arg2;
	arg1 = (10 << 8) + 8;
	arg2 = 50 | 0;

	if (sscanf(Cmd, "%u %u", &fc, &cn ) != 2) return usage_lf_pyramid_sim();

	facilitycode = (fc & 0x000000FF);
	cardnumber = (cn & 0x0000FFFF);

	if ( !GetPyramidBits(facilitycode, cardnumber, bs)) {
		PrintAndLog("Error with tag bitstream generation.");
		return 1;
	}

	PrintAndLog("Simulating Farpointe/Pyramid - Facility Code: %u, CardNumber: %u", facilitycode, cardnumber );

	UsbCommand c = {CMD_FSK_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",  CmdPyramidRead,  0, "Attempt to read and extract tag data"},
	{"clone", CmdPyramidClone, 0, "<Facility-Code> <Card Number>  clone pyramid tag"},
	{"sim",   CmdPyramidSim,   0, "<Facility-Code> <Card Number>  simulate pyramid tag"},
	{NULL, NULL, 0, NULL}
};

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

int CmdHelp(const char *Cmd) {
	CmdsHelp(CommandTable);
	return 0;
}
Commit	Line	Data
6923d3f1	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 Farpoint / Pyramid tag commands
	8	//-----------------------------------------------------------------------------
	9	#include <string.h>
	10	#include <inttypes.h>
	11	#include "cmdlfpyramid.h"
29ada8fc	12	#include "proxmark3.h"
	13	#include "ui.h"
	14	#include "util.h"
	15	#include "graph.h"
	16	#include "cmdparser.h"
	17	#include "cmddata.h"
	18	#include "cmdmain.h"
	19	#include "cmdlf.h"
	20	#include "protocols.h" // for T55xx config register definitions
	21	#include "lfdemod.h" // parityTest
	22	#include "crc.h"
	23
6923d3f1	24	static int CmdHelp(const char *Cmd);
	25
	26	int usage_lf_pyramid_clone(void){
	27	PrintAndLog("clone a Farpointe/Pyramid tag to a T55x7 tag.");
	28	PrintAndLog("The facility-code is 8-bit and the card number is 16-bit. Larger values are truncated. ");
	29	PrintAndLog("Currently work only on 26bit");
	30	PrintAndLog("");
	31	PrintAndLog("Usage: lf pyramid clone <Facility-Code> <Card-Number>");
	32	PrintAndLog("Options :");
	33	PrintAndLog(" <Facility-Code> : 8-bit value facility code");
	34	PrintAndLog(" <Card Number> : 16-bit value card number");
29ada8fc	35	PrintAndLog(" Q5 : optional - clone to Q5 (T5555) instead of T55x7 chip");
6923d3f1	36	PrintAndLog("");
	37	PrintAndLog("Sample : lf pyramid clone 123 11223");
	38	return 0;
	39	}
	40
	41	int usage_lf_pyramid_sim(void) {
	42	PrintAndLog("Enables simulation of Farpointe/Pyramid card with specified card number.");
	43	PrintAndLog("Simulation runs until the button is pressed or another USB command is issued.");
	44	PrintAndLog("The facility-code is 8-bit and the card number is 16-bit. Larger values are truncated.");
	45	PrintAndLog("Currently work only on 26bit");
	46	PrintAndLog("");
	47	PrintAndLog("Usage: lf pyramid sim <Card-Number>");
	48	PrintAndLog("Options :");
	49	PrintAndLog(" <Facility-Code> : 8-bit value facility code");
	50	PrintAndLog(" <Card Number> : 16-bit value card number");
	51	PrintAndLog("");
	52	PrintAndLog("Sample : lf pyramid sim 123 11223");
	53	return 0;
	54	}
	55
	56	// Works for 26bits.
	57	int GetPyramidBits(uint32_t fc, uint32_t cn, uint8_t *pyramidBits) {
	58
	59	uint8_t pre[128];
	60	memset(pre, 0x00, sizeof(pre));
	61
	62	// format start bit
	63	pre[79] = 1;
	64
	65	// Get 26 wiegand from FacilityCode, CardNumber
	66	uint8_t wiegand[24];
	67	memset(wiegand, 0x00, sizeof(wiegand));
	68	num_to_bytebits(fc, 8, wiegand);
	69	num_to_bytebits(cn, 16, wiegand+8);
	70
	71	// add wiegand parity bits (dest, source, len)
	72	wiegand_add_parity(pre+80, wiegand, 24);
	73
	74	// add paritybits (bitsource, dest, sourcelen, paritylen, parityType (odd, even,)
	75	addParity(pre+8, pyramidBits+8, 102, 8, 1);
	76
	77	// add checksum
	78	uint8_t csBuff[13];
	79	for (uint8_t i = 0; i < 13; i++)
	80	csBuff[i] = bytebits_to_byte(pyramidBits + 16 + (i*8), 8);
	81
	82	uint32_t crc = CRC8Maxim(csBuff, 13);
	83	num_to_bytebits(crc, 8, pyramidBits+120);
	84	return 1;
	85	}
	86
	87	int CmdPyramidRead(const char *Cmd) {
	88	CmdLFRead("s");
	89	getSamples("30000",false);
	90	return CmdFSKdemodPyramid("");
	91	}
	92
	93	int CmdPyramidClone(const char *Cmd) {
	94
	95	char cmdp = param_getchar(Cmd, 0);
	96	if (strlen(Cmd) == 0 \|\| cmdp == 'h' \|\| cmdp == 'H') return usage_lf_pyramid_clone();
	97
	98	uint32_t facilitycode=0, cardnumber=0, fc = 0, cn = 0;
	99	uint32_t blocks[5];
100	uint8_t i;
101	uint8_t bs[128];
102	memset(bs, 0x00, sizeof(bs));
103
104	if (sscanf(Cmd, "%u %u", &fc, &cn ) != 2) return usage_lf_pyramid_clone();
105
106	facilitycode = (fc & 0x000000FF);
107	cardnumber = (cn & 0x0000FFFF);
108
109	if ( !GetPyramidBits(facilitycode, cardnumber, bs)) {
110	PrintAndLog("Error with tag bitstream generation.");
111	return 1;
29ada8fc	112	}
6923d3f1	113
	114	//Pyramid - compat mode, FSK2a, data rate 50, 4 data blocks
	115	blocks[0] = T55x7_MODULATION_FSK2a \| T55x7_BITRATE_RF_50 \| 4<<T55x7_MAXBLOCK_SHIFT;
29ada8fc	116
	117	if (param_getchar(Cmd, 3) == 'Q' \|\| param_getchar(Cmd, 3) == 'q')
	118	blocks[0] = T5555_MODULATION_FSK2 \| T5555_INVERT_OUTPUT \| 50<<T5555_BITRATE_SHIFT \| 4<<T5555_MAXBLOCK_SHIFT;
	119
6923d3f1	120	blocks[1] = bytebits_to_byte(bs,32);
	121	blocks[2] = bytebits_to_byte(bs+32,32);
	122	blocks[3] = bytebits_to_byte(bs+64,32);
	123	blocks[4] = bytebits_to_byte(bs+96,32);
	124
	125	PrintAndLog("Preparing to clone Farpointe/Pyramid to T55x7 with Facility Code: %u, Card Number: %u", facilitycode, cardnumber);
	126	PrintAndLog("Blk \| Data ");
	127	PrintAndLog("----+------------");
	128	for ( i = 0; i<5; ++i )
	129	PrintAndLog(" %02d \| %08" PRIx32, i, blocks[i]);
	130
	131	UsbCommand resp;
	132	UsbCommand c = {CMD_T55XX_WRITE_BLOCK, {0,0,0}};
	133
	134	for ( i = 0; i<5; ++i ) {
	135	c.arg[0] = blocks[i];
	136	c.arg[1] = i;
	137	clearCommandBuffer();
	138	SendCommand(&c);
	139	if (!WaitForResponseTimeout(CMD_ACK, &resp, 1000)){
	140	PrintAndLog("Error occurred, device did not respond during write operation.");
	141	return -1;
	142	}
	143	}
29ada8fc	144	return 0;
6923d3f1	145	}
	146
	147	int CmdPyramidSim(const char *Cmd) {
	148
	149	char cmdp = param_getchar(Cmd, 0);
	150	if (strlen(Cmd) == 0 \|\| cmdp == 'h' \|\| cmdp == 'H') return usage_lf_pyramid_sim();
	151
	152	uint32_t facilitycode = 0, cardnumber = 0, fc = 0, cn = 0;
29ada8fc	153
6923d3f1	154	uint8_t bs[128];
	155	size_t size = sizeof(bs);
	156	memset(bs, 0x00, size);
29ada8fc	157
6923d3f1	158	// Pyramid uses: fcHigh: 10, fcLow: 8, clk: 50, invert: 0
	159	uint64_t arg1, arg2;
	160	arg1 = (10 << 8) + 8;
	161	arg2 = 50 \| 0;
	162
	163	if (sscanf(Cmd, "%u %u", &fc, &cn ) != 2) return usage_lf_pyramid_sim();
	164
	165	facilitycode = (fc & 0x000000FF);
	166	cardnumber = (cn & 0x0000FFFF);
29ada8fc	167
6923d3f1	168	if ( !GetPyramidBits(facilitycode, cardnumber, bs)) {
	169	PrintAndLog("Error with tag bitstream generation.");
	170	return 1;
29ada8fc	171	}
6923d3f1	172
6923d3f1	173	PrintAndLog("Simulating Farpointe/Pyramid - Facility Code: %u, CardNumber: %u", facilitycode, cardnumber );
29ada8fc	174
6923d3f1	175	UsbCommand c = {CMD_FSK_SIM_TAG, {arg1, arg2, size}};
	176	memcpy(c.d.asBytes, bs, size);
	177	clearCommandBuffer();
	178	SendCommand(&c);
	179	return 0;
	180	}
	181
	182	static command_t CommandTable[] = {
29ada8fc	183	{"help", CmdHelp, 1, "This help"},
	184	{"read", CmdPyramidRead, 0, "Attempt to read and extract tag data"},
	185	{"clone", CmdPyramidClone, 0, "<Facility-Code> <Card Number> clone pyramid tag"},
	186	{"sim", CmdPyramidSim, 0, "<Facility-Code> <Card Number> simulate pyramid tag"},
	187	{NULL, NULL, 0, NULL}
6923d3f1	188	};
	189
	190	int CmdLFPyramid(const char *Cmd) {
	191	clearCommandBuffer();
29ada8fc	192	CmdsParse(CommandTable, Cmd);
29ada8fc	193	return 0;
6923d3f1	194	}
	195
	196	int CmdHelp(const char *Cmd) {
29ada8fc	197	CmdsHelp(CommandTable);
29ada8fc	198	return 0;
6923d3f1	199	}