[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 <stdio.h>
#include "cmdlfpyramid.h"
#include "proxmark3.h"
#include "ui.h"
#include "util.h"
#include "graph.h"
#include "cmdparser.h"
#include "cmddata.h"    // setDemodBuf +
#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 only works 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;
}

//by marshmellow
//Pyramid Prox demod - FSK RF/50 with preamble of 0000000000000001  (always a 128 bit data stream)
//print full Farpointe Data/Pyramid Prox ID and some bit format details if found
int CmdFSKdemodPyramid(const char *Cmd)
{
	//raw fsk demod no manchester decoding no start bit finding just get binary from wave
	uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
	size_t size = getFromGraphBuf(BitStream);
	if (size==0) return 0;

	//get binary from fsk wave
	int idx = PyramiddemodFSK(BitStream, &size);
	if (idx < 0){
		if (g_debugMode){
			if (idx == -5)
				PrintAndLog("DEBUG: Error - not enough samples");
			else if (idx == -1)
				PrintAndLog("DEBUG: Error - only noise found");
			else if (idx == -2)
				PrintAndLog("DEBUG: Error - problem during FSK demod");
			else if (idx == -3)
				PrintAndLog("DEBUG: Error - Size not correct: %d", size);
			else if (idx == -4)
				PrintAndLog("DEBUG: Error - Pyramid preamble not found");
			else
				PrintAndLog("DEBUG: Error - idx: %d",idx);
		}
		return 0;
	}
	// Index map
	// 0           10          20          30            40          50          60
	// |           |           |           |             |           |           |
	// 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3
	// -----------------------------------------------------------------------------
	// 0000000 0 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1
	// premable  xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o

	// 64    70            80          90          100         110           120
	// |     |             |           |           |           |             |
	// 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7
	// -----------------------------------------------------------------------------
	// 0000000 1 0000000 1 0000000 1 0110111 0 0011000 1 0000001 0 0001100 1 1001010 0
	// xxxxxxx o xxxxxxx o xxxxxxx o xswffff o ffffccc o ccccccc o ccccccw o ppppppp o
	//                                  |---115---||---------71---------|
	// s = format start bit, o = odd parity of last 7 bits
	// f = facility code, c = card number
	// w = wiegand parity, x = extra space for other formats
	// p = unknown checksum
	// (26 bit format shown)

	//get bytes for checksum calc
	uint8_t checksum = bytebits_to_byte(BitStream + idx + 120, 8);
	uint8_t csBuff[14] = {0x00};
	for (uint8_t i = 0; i < 13; i++){
		csBuff[i] = bytebits_to_byte(BitStream + idx + 16 + (i*8), 8);
	}
	//check checksum calc
	//checksum calc thanks to ICEMAN!!
	uint32_t checkCS =  CRC8Maxim(csBuff,13);

	//get raw ID before removing parities
	uint32_t rawLo = bytebits_to_byte(BitStream+idx+96,32);
	uint32_t rawHi = bytebits_to_byte(BitStream+idx+64,32);
	uint32_t rawHi2 = bytebits_to_byte(BitStream+idx+32,32);
	uint32_t rawHi3 = bytebits_to_byte(BitStream+idx,32);
	setDemodBuf(BitStream,128,idx);

	size = removeParity(BitStream, idx+8, 8, 1, 120);
	if (size != 105){
		if (g_debugMode) 
			PrintAndLog("DEBUG: Error at parity check - tag size does not match Pyramid format, SIZE: %d, IDX: %d, hi3: %x",size, idx, rawHi3);
		return 0;
	}

	// ok valid card found!

	// Index map
	// 0         10        20        30        40        50        60        70
	// |         |         |         |         |         |         |         |
	// 01234567890123456789012345678901234567890123456789012345678901234567890
	// -----------------------------------------------------------------------
	// 00000000000000000000000000000000000000000000000000000000000000000000000
	// xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

	// 71         80         90          100
	// |          |          |           |
	// 1 2 34567890 1234567890123456 7 8901234
	// ---------------------------------------
	// 1 1 01110011 0000000001000110 0 1001010
	// s w ffffffff cccccccccccccccc w ppppppp
	//     |--115-| |------71------|
	// s = format start bit, o = odd parity of last 7 bits
	// f = facility code, c = card number
	// w = wiegand parity, x = extra space for other formats
	// p = unknown checksum
	// (26 bit format shown)

	//find start bit to get fmtLen
	int j;
	for (j=0; j<size; j++){
		if(BitStream[j]) break;
	}
	uint8_t fmtLen = size-j-8;
	uint32_t fc = 0;
	uint32_t cardnum = 0;
	uint32_t code1 = 0;
	if (fmtLen==26){
		fc = bytebits_to_byte(BitStream+73, 8);
		cardnum = bytebits_to_byte(BitStream+81, 16);
		code1 = bytebits_to_byte(BitStream+72,fmtLen);
		PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %08x%08x%08x%08x", fmtLen, fc, cardnum, code1, rawHi3, rawHi2, rawHi, rawLo);
	} else if (fmtLen==45){
		fmtLen=42; //end = 10 bits not 7 like 26 bit fmt
		fc = bytebits_to_byte(BitStream+53, 10);
		cardnum = bytebits_to_byte(BitStream+63, 32);
		PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Raw: %08x%08x%08x%08x", fmtLen, fc, cardnum, rawHi3, rawHi2, rawHi, rawLo);
	} else {
		cardnum = bytebits_to_byte(BitStream+81, 16);
		if (fmtLen>32){
			//code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen-32);
			//code2 = bytebits_to_byte(BitStream+(size-32),32);
			PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %08x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo);
		} else{
			//code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen);
			PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %08x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo);
		}
	}
	if (checksum == checkCS)
		PrintAndLog("Checksum %02x passed", checksum);
	else
		PrintAndLog("Checksum %02x failed - should have been %02x", checksum, checkCS);

	if (g_debugMode){
		PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, 128);
		printDemodBuff();
	}
	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"},
	{"demod", CmdFSKdemodPyramid, 1, "Demodulate a Pyramid FSK tag from the GraphBuffer"},
	{"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>
acf0582d	11	#include <stdio.h>
2b4898ec	12	#include "cmdlfpyramid.h"
29ada8fc	13	#include "proxmark3.h"
	14	#include "ui.h"
	15	#include "util.h"
	16	#include "graph.h"
	17	#include "cmdparser.h"
cf4640b9	18	#include "cmddata.h" // setDemodBuf +
29ada8fc	19	#include "cmdmain.h"
	20	#include "cmdlf.h"
	21	#include "protocols.h" // for T55xx config register definitions
	22	#include "lfdemod.h" // parityTest
	23	#include "crc.h"
	24
6923d3f1	25	static int CmdHelp(const char *Cmd);
	26
	27	int usage_lf_pyramid_clone(void){
	28	PrintAndLog("clone a Farpointe/Pyramid tag to a T55x7 tag.");
	29	PrintAndLog("The facility-code is 8-bit and the card number is 16-bit. Larger values are truncated. ");
cf4640b9	30	PrintAndLog("Currently only works on 26bit");
6923d3f1	31	PrintAndLog("");
	32	PrintAndLog("Usage: lf pyramid clone <Facility-Code> <Card-Number>");
	33	PrintAndLog("Options :");
	34	PrintAndLog(" <Facility-Code> : 8-bit value facility code");
	35	PrintAndLog(" <Card Number> : 16-bit value card number");
29ada8fc	36	PrintAndLog(" Q5 : optional - clone to Q5 (T5555) instead of T55x7 chip");
6923d3f1	37	PrintAndLog("");
	38	PrintAndLog("Sample : lf pyramid clone 123 11223");
	39	return 0;
	40	}
	41
	42	int usage_lf_pyramid_sim(void) {
	43	PrintAndLog("Enables simulation of Farpointe/Pyramid card with specified card number.");
	44	PrintAndLog("Simulation runs until the button is pressed or another USB command is issued.");
	45	PrintAndLog("The facility-code is 8-bit and the card number is 16-bit. Larger values are truncated.");
	46	PrintAndLog("Currently work only on 26bit");
	47	PrintAndLog("");
	48	PrintAndLog("Usage: lf pyramid sim <Card-Number>");
	49	PrintAndLog("Options :");
	50	PrintAndLog(" <Facility-Code> : 8-bit value facility code");
	51	PrintAndLog(" <Card Number> : 16-bit value card number");
	52	PrintAndLog("");
	53	PrintAndLog("Sample : lf pyramid sim 123 11223");
	54	return 0;
	55	}
	56
	57	// Works for 26bits.
	58	int GetPyramidBits(uint32_t fc, uint32_t cn, uint8_t *pyramidBits) {
	59
	60	uint8_t pre[128];
	61	memset(pre, 0x00, sizeof(pre));
	62
	63	// format start bit
	64	pre[79] = 1;
	65
	66	// Get 26 wiegand from FacilityCode, CardNumber
	67	uint8_t wiegand[24];
	68	memset(wiegand, 0x00, sizeof(wiegand));
	69	num_to_bytebits(fc, 8, wiegand);
	70	num_to_bytebits(cn, 16, wiegand+8);
	71
	72	// add wiegand parity bits (dest, source, len)
	73	wiegand_add_parity(pre+80, wiegand, 24);
	74
	75	// add paritybits (bitsource, dest, sourcelen, paritylen, parityType (odd, even,)
	76	addParity(pre+8, pyramidBits+8, 102, 8, 1);
	77
	78	// add checksum
	79	uint8_t csBuff[13];
	80	for (uint8_t i = 0; i < 13; i++)
	81	csBuff[i] = bytebits_to_byte(pyramidBits + 16 + (i*8), 8);
	82
	83	uint32_t crc = CRC8Maxim(csBuff, 13);
	84	num_to_bytebits(crc, 8, pyramidBits+120);
	85	return 1;
	86	}
	87
cf4640b9	88	//by marshmellow
	89	//Pyramid Prox demod - FSK RF/50 with preamble of 0000000000000001 (always a 128 bit data stream)
	90	//print full Farpointe Data/Pyramid Prox ID and some bit format details if found
	91	int CmdFSKdemodPyramid(const char *Cmd)
	92	{
	93	//raw fsk demod no manchester decoding no start bit finding just get binary from wave
	94	uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
	95	size_t size = getFromGraphBuf(BitStream);
	96	if (size==0) return 0;
	97
	98	//get binary from fsk wave
	99	int idx = PyramiddemodFSK(BitStream, &size);
	100	if (idx < 0){
	101	if (g_debugMode){
	102	if (idx == -5)
	103	PrintAndLog("DEBUG: Error - not enough samples");
	104	else if (idx == -1)
	105	PrintAndLog("DEBUG: Error - only noise found");
	106	else if (idx == -2)
	107	PrintAndLog("DEBUG: Error - problem during FSK demod");
	108	else if (idx == -3)
	109	PrintAndLog("DEBUG: Error - Size not correct: %d", size);
	110	else if (idx == -4)
	111	PrintAndLog("DEBUG: Error - Pyramid preamble not found");
	112	else
	113	PrintAndLog("DEBUG: Error - idx: %d",idx);
	114	}
	115	return 0;
	116	}
	117	// Index map
	118	// 0 10 20 30 40 50 60
	119	// \| \| \| \| \| \| \|
	120	// 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3
	121	// -----------------------------------------------------------------------------
	122	// 0000000 0 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1
	123	// premable xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o
	124
	125	// 64 70 80 90 100 110 120
	126	// \| \| \| \| \| \| \|
	127	// 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7
	128	// -----------------------------------------------------------------------------
	129	// 0000000 1 0000000 1 0000000 1 0110111 0 0011000 1 0000001 0 0001100 1 1001010 0
	130	// xxxxxxx o xxxxxxx o xxxxxxx o xswffff o ffffccc o ccccccc o ccccccw o ppppppp o
	131	// \|---115---\|\|---------71---------\|
	132	// s = format start bit, o = odd parity of last 7 bits
	133	// f = facility code, c = card number
	134	// w = wiegand parity, x = extra space for other formats
	135	// p = unknown checksum
	136	// (26 bit format shown)
	137
	138	//get bytes for checksum calc
	139	uint8_t checksum = bytebits_to_byte(BitStream + idx + 120, 8);
	140	uint8_t csBuff[14] = {0x00};
	141	for (uint8_t i = 0; i < 13; i++){
	142	csBuff[i] = bytebits_to_byte(BitStream + idx + 16 + (i*8), 8);
	143	}
	144	//check checksum calc
	145	//checksum calc thanks to ICEMAN!!
	146	uint32_t checkCS = CRC8Maxim(csBuff,13);
	147
	148	//get raw ID before removing parities
	149	uint32_t rawLo = bytebits_to_byte(BitStream+idx+96,32);
	150	uint32_t rawHi = bytebits_to_byte(BitStream+idx+64,32);
	151	uint32_t rawHi2 = bytebits_to_byte(BitStream+idx+32,32);
152	uint32_t rawHi3 = bytebits_to_byte(BitStream+idx,32);
153	setDemodBuf(BitStream,128,idx);
154
155	size = removeParity(BitStream, idx+8, 8, 1, 120);
156	if (size != 105){
157	if (g_debugMode)
158	PrintAndLog("DEBUG: Error at parity check - tag size does not match Pyramid format, SIZE: %d, IDX: %d, hi3: %x",size, idx, rawHi3);
159	return 0;
160	}
161
162	// ok valid card found!
163
164	// Index map
165	// 0 10 20 30 40 50 60 70
166	// \| \| \| \| \| \| \| \|
167	// 01234567890123456789012345678901234567890123456789012345678901234567890
168	// -----------------------------------------------------------------------
169	// 00000000000000000000000000000000000000000000000000000000000000000000000
170	// xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
171
172	// 71 80 90 100
173	// \| \| \| \|
174	// 1 2 34567890 1234567890123456 7 8901234
175	// ---------------------------------------
176	// 1 1 01110011 0000000001000110 0 1001010
177	// s w ffffffff cccccccccccccccc w ppppppp
178	// \|--115-\| \|------71------\|
179	// s = format start bit, o = odd parity of last 7 bits
180	// f = facility code, c = card number
181	// w = wiegand parity, x = extra space for other formats
182	// p = unknown checksum
183	// (26 bit format shown)
184
185	//find start bit to get fmtLen
186	int j;
187	for (j=0; j<size; j++){
188	if(BitStream[j]) break;
189	}
190	uint8_t fmtLen = size-j-8;
191	uint32_t fc = 0;
192	uint32_t cardnum = 0;
193	uint32_t code1 = 0;
194	if (fmtLen==26){
195	fc = bytebits_to_byte(BitStream+73, 8);
196	cardnum = bytebits_to_byte(BitStream+81, 16);
197	code1 = bytebits_to_byte(BitStream+72,fmtLen);
198	PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %08x%08x%08x%08x", fmtLen, fc, cardnum, code1, rawHi3, rawHi2, rawHi, rawLo);
199	} else if (fmtLen==45){
200	fmtLen=42; //end = 10 bits not 7 like 26 bit fmt
201	fc = bytebits_to_byte(BitStream+53, 10);
202	cardnum = bytebits_to_byte(BitStream+63, 32);
203	PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Raw: %08x%08x%08x%08x", fmtLen, fc, cardnum, rawHi3, rawHi2, rawHi, rawLo);
204	} else {
205	cardnum = bytebits_to_byte(BitStream+81, 16);
206	if (fmtLen>32){
207	//code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen-32);
208	//code2 = bytebits_to_byte(BitStream+(size-32),32);
209	PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %08x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo);
210	} else{
211	//code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen);
212	PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %08x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo);
213	}
214	}
215	if (checksum == checkCS)
216	PrintAndLog("Checksum %02x passed", checksum);
217	else
218	PrintAndLog("Checksum %02x failed - should have been %02x", checksum, checkCS);
219
220	if (g_debugMode){
221	PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, 128);
222	printDemodBuff();
223	}
224	return 1;
225	}
226
6923d3f1	227	int CmdPyramidRead(const char *Cmd) {
	228	CmdLFRead("s");
	229	getSamples("30000",false);
	230	return CmdFSKdemodPyramid("");
	231	}
	232
	233	int CmdPyramidClone(const char *Cmd) {
	234
	235	char cmdp = param_getchar(Cmd, 0);
	236	if (strlen(Cmd) == 0 \|\| cmdp == 'h' \|\| cmdp == 'H') return usage_lf_pyramid_clone();
	237
	238	uint32_t facilitycode=0, cardnumber=0, fc = 0, cn = 0;
	239	uint32_t blocks[5];
	240	uint8_t i;
	241	uint8_t bs[128];
	242	memset(bs, 0x00, sizeof(bs));
	243
	244	if (sscanf(Cmd, "%u %u", &fc, &cn ) != 2) return usage_lf_pyramid_clone();
	245
	246	facilitycode = (fc & 0x000000FF);
	247	cardnumber = (cn & 0x0000FFFF);
	248
	249	if ( !GetPyramidBits(facilitycode, cardnumber, bs)) {
	250	PrintAndLog("Error with tag bitstream generation.");
	251	return 1;
29ada8fc	252	}
6923d3f1	253
	254	//Pyramid - compat mode, FSK2a, data rate 50, 4 data blocks
	255	blocks[0] = T55x7_MODULATION_FSK2a \| T55x7_BITRATE_RF_50 \| 4<<T55x7_MAXBLOCK_SHIFT;
29ada8fc	256
	257	if (param_getchar(Cmd, 3) == 'Q' \|\| param_getchar(Cmd, 3) == 'q')
	258	blocks[0] = T5555_MODULATION_FSK2 \| T5555_INVERT_OUTPUT \| 50<<T5555_BITRATE_SHIFT \| 4<<T5555_MAXBLOCK_SHIFT;
	259
6923d3f1	260	blocks[1] = bytebits_to_byte(bs,32);
	261	blocks[2] = bytebits_to_byte(bs+32,32);
	262	blocks[3] = bytebits_to_byte(bs+64,32);
	263	blocks[4] = bytebits_to_byte(bs+96,32);
	264
	265	PrintAndLog("Preparing to clone Farpointe/Pyramid to T55x7 with Facility Code: %u, Card Number: %u", facilitycode, cardnumber);
	266	PrintAndLog("Blk \| Data ");
	267	PrintAndLog("----+------------");
	268	for ( i = 0; i<5; ++i )
	269	PrintAndLog(" %02d \| %08" PRIx32, i, blocks[i]);
	270
	271	UsbCommand resp;
	272	UsbCommand c = {CMD_T55XX_WRITE_BLOCK, {0,0,0}};
	273
	274	for ( i = 0; i<5; ++i ) {
	275	c.arg[0] = blocks[i];
	276	c.arg[1] = i;
	277	clearCommandBuffer();
	278	SendCommand(&c);
	279	if (!WaitForResponseTimeout(CMD_ACK, &resp, 1000)){
	280	PrintAndLog("Error occurred, device did not respond during write operation.");
	281	return -1;
	282	}
	283	}
29ada8fc	284	return 0;
6923d3f1	285	}
	286
	287	int CmdPyramidSim(const char *Cmd) {
	288
	289	char cmdp = param_getchar(Cmd, 0);
	290	if (strlen(Cmd) == 0 \|\| cmdp == 'h' \|\| cmdp == 'H') return usage_lf_pyramid_sim();
	291
	292	uint32_t facilitycode = 0, cardnumber = 0, fc = 0, cn = 0;
29ada8fc	293
6923d3f1	294	uint8_t bs[128];
	295	size_t size = sizeof(bs);
	296	memset(bs, 0x00, size);
29ada8fc	297
6923d3f1	298	// Pyramid uses: fcHigh: 10, fcLow: 8, clk: 50, invert: 0
	299	uint64_t arg1, arg2;
	300	arg1 = (10 << 8) + 8;
	301	arg2 = 50 \| 0;
	302
	303	if (sscanf(Cmd, "%u %u", &fc, &cn ) != 2) return usage_lf_pyramid_sim();
	304
	305	facilitycode = (fc & 0x000000FF);
	306	cardnumber = (cn & 0x0000FFFF);
29ada8fc	307
6923d3f1	308	if ( !GetPyramidBits(facilitycode, cardnumber, bs)) {
	309	PrintAndLog("Error with tag bitstream generation.");
	310	return 1;
29ada8fc	311	}
6923d3f1	312
6923d3f1	313	PrintAndLog("Simulating Farpointe/Pyramid - Facility Code: %u, CardNumber: %u", facilitycode, cardnumber );
29ada8fc	314
6923d3f1	315	UsbCommand c = {CMD_FSK_SIM_TAG, {arg1, arg2, size}};
	316	memcpy(c.d.asBytes, bs, size);
	317	clearCommandBuffer();
	318	SendCommand(&c);
	319	return 0;
	320	}
	321
	322	static command_t CommandTable[] = {
cf4640b9	323	{"help", CmdHelp, 1, "This help"},
	324	{"demod", CmdFSKdemodPyramid, 1, "Demodulate a Pyramid FSK tag from the GraphBuffer"},
	325	{"read", CmdPyramidRead, 0, "Attempt to read and extract tag data"},
	326	{"clone", CmdPyramidClone, 0, "<Facility-Code> <Card Number> clone pyramid tag"},
	327	{"sim", CmdPyramidSim, 0, "<Facility-Code> <Card Number> simulate pyramid tag"},
29ada8fc	328	{NULL, NULL, 0, NULL}
6923d3f1	329	};
	330
	331	int CmdLFPyramid(const char *Cmd) {
	332	clearCommandBuffer();
29ada8fc	333	CmdsParse(CommandTable, Cmd);
29ada8fc	334	return 0;
6923d3f1	335	}
	336
	337	int CmdHelp(const char *Cmd) {
29ada8fc	338	CmdsHelp(CommandTable);
29ada8fc	339	return 0;
6923d3f1	340	}