[proxmark3-svn] / client / cmdlfawid.c

//-----------------------------------------------------------------------------
// Authored by Craig Young <cyoung@tripwire.com> based on cmdlfhid.c structure
//
// cmdlfhid.c is 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 AWID26 commands
//-----------------------------------------------------------------------------

#include <stdio.h>      // sscanf
#include "proxmark3.h"  // Definitions, USB controls, etc
#include "ui.h"         // PrintAndLog
#include "cmdparser.h"  // CmdsParse, CmdsHelp
#include "cmdlfawid.h"  // AWID function declarations
#include "lfdemod.h"    // parityTest
#include "util.h"       // weigandparity
#include "protocols.h"  // for T55xx config register definitions
#include "cmdmain.h"

static int CmdHelp(const char *Cmd);

int usage_lf_awid_fskdemod(void) {
	PrintAndLog("Enables AWID26 compatible reader mode printing details of scanned AWID26 tags.");
	PrintAndLog("By default, values are printed and logged until the button is pressed or another USB command is issued.");
	PrintAndLog("If the ['1'] option is provided, reader mode is exited after reading a single AWID26 card.");
	PrintAndLog("");
	PrintAndLog("Usage:  lf awid fskdemod ['1']");
	PrintAndLog("Options :");
	PrintAndLog("  1 : (optional) stop after reading a single card");
	PrintAndLog("");
	PrintAndLog("Samples : lf awid fskdemod");
	PrintAndLog("          : lf awid fskdemod 1");
	return 0;
}

int usage_lf_awid_sim(void) {
	PrintAndLog("Enables simulation of AWID26 card with specified facility-code and card number.");
	PrintAndLog("Simulation runs until the button is pressed or another USB command is issued.");
	PrintAndLog("Per AWID26 format, the facility-code is 8-bit and the card number is 16-bit.  Larger values are truncated.");
	PrintAndLog("");
	PrintAndLog("Usage:  lf awid sim <Facility-Code> <Card-Number>");
	PrintAndLog("Options :");
	PrintAndLog("  <Facility-Code> :  8-bit value AWID facility code");
	PrintAndLog("  <Card Number>   : 16-bit value AWID card number");
	PrintAndLog("");
	PrintAndLog("Sample : lf awid sim 224 1337");
	return 0;
}

int usage_lf_awid_clone(void) {
	PrintAndLog("Enables cloning of AWID26 card with specified facility-code and card number onto T55x7.");
	PrintAndLog("The T55x7 must be on the antenna when issuing this command.  T55x7 blocks are calculated and printed in the process.");
	PrintAndLog("Per AWID26 format, the facility-code is 8-bit and the card number is 16-bit.  Larger values are truncated.");
	PrintAndLog("");
	PrintAndLog("Usage:  lf awid clone <Facility-Code> <Card-Number>");
	PrintAndLog("Options :");
	PrintAndLog("  <Facility-Code> :  8-bit value AWID facility code");
	PrintAndLog("  <Card Number>   : 16-bit value AWID card number");
	PrintAndLog("  Q5              : optional - clone to Q5 (T5555) instead of T55x7 chip");
	PrintAndLog("");
	PrintAndLog("Sample  : lf awid clone 224 1337");
	return 0;
}

int CmdAWIDDemodFSK(const char *Cmd) {
	int findone = 0;
	if (Cmd[0] == 'h' || Cmd[0] == 'H') return usage_lf_awid_fskdemod();
	if (Cmd[0] == '1') findone = 1;

	UsbCommand c = {CMD_AWID_DEMOD_FSK, {findone, 0, 0}};
	clearCommandBuffer();
	SendCommand(&c);
	return 0;   
}

//refactored by marshmellow
int getAWIDBits(uint32_t fc, uint32_t cn, uint8_t	*AWIDBits) {
	uint8_t pre[66];
	memset(pre, 0, sizeof(pre));
	AWIDBits[7]=1;
	num_to_bytebits(26, 8, pre);

	uint8_t wiegand[24];
	num_to_bytebits(fc, 8, wiegand);
	num_to_bytebits(cn, 16, wiegand+8);

	wiegand_add_parity(pre+8, wiegand, 24);

	size_t bitLen = addParity(pre, AWIDBits+8, 66, 4, 1);
	if (bitLen != 88) return 0;
	//for (uint8_t i = 0; i<3; i++){
	//	PrintAndLog("DEBUG: %08X", bytebits_to_byte(AWIDBits+(32*i),32));
	//}
	return 1;
}

int CmdAWIDSim(const char *Cmd) {
	uint32_t fcode = 0, cnum = 0, fc=0, cn=0;
	uint8_t bits[96];
	uint8_t *bs = bits;
	size_t size = sizeof(bits);
	memset(bs, 0, size);

	uint64_t arg1 = (10<<8) + 8; // fcHigh = 10, fcLow = 8
	uint64_t arg2 = 50; // clk RF/50 invert=0
  
	if (sscanf(Cmd, "%u %u", &fc, &cn ) != 2) return usage_lf_awid_sim();

	fcode = (fc & 0x000000FF);
	cnum = (cn & 0x0000FFFF);
	
	if (fc!=fcode) PrintAndLog("Facility-Code (%u) truncated to 8-bits: %u", fc, fcode);
	if (cn!=cnum)  PrintAndLog("Card number (%u) truncated to 16-bits: %u", cn, cnum);
	
	PrintAndLog("Emulating AWID26 -- FC: %u; CN: %u\n", fcode, cnum);
	PrintAndLog("Press pm3-button to abort simulation or run another command");
	
	if (!getAWIDBits(fc, cn, bs)) {
		PrintAndLog("Error with tag bitstream generation.");
		return 1;
	}
	// AWID uses: fcHigh: 10, fcLow: 8, clk: 50, invert: 0
	// arg1 --- fcHigh<<8 + fcLow
	// arg2 --- Inversion and clk setting
	// 96   --- Bitstream length: 96-bits == 12 bytes
	UsbCommand c = {CMD_FSK_SIM_TAG, {arg1, arg2, size}};  
	memcpy(c.d.asBytes, bs, size);
	clearCommandBuffer();
	SendCommand(&c);
	return 0;
}

int CmdAWIDClone(const char *Cmd) {
	uint32_t blocks[4] = {T55x7_MODULATION_FSK2a | T55x7_BITRATE_RF_50 | 3<<T55x7_MAXBLOCK_SHIFT, 0, 0, 0};
	uint32_t fc=0,cn=0;
	uint8_t bits[96];
	uint8_t *bs=bits;
	memset(bs,0,sizeof(bits));
	
	if (sscanf(Cmd, "%u %u", &fc, &cn ) != 2) return usage_lf_awid_clone();

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

	if ((fc & 0xFF) != fc) {
		fc &= 0xFF;
		PrintAndLog("Facility-Code Truncated to 8-bits (AWID26): %u", fc);
	}

	if ((cn & 0xFFFF) != cn) {
		cn &= 0xFFFF;
		PrintAndLog("Card Number Truncated to 16-bits (AWID26): %u", cn);
	}
	
	if ( !getAWIDBits(fc, cn, 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 AWID26 to T55x7 with FC: %u, CN: %u", 
	    fc, cn);
	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 (uint8_t i=0; i<4; 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;
}

static command_t CommandTable[] = {
	{"help",      CmdHelp,         1, "This help"},
	{"fskdemod",  CmdAWIDDemodFSK, 0, "['1'] Realtime AWID FSK demodulator (option '1' for one tag only)"},
	{"sim",       CmdAWIDSim,      0, "<Facility-Code> <Card Number> -- AWID tag simulator"},
	{"clone",     CmdAWIDClone,    0, "<Facility-Code> <Card Number> <Q5> -- Clone AWID to T55x7"},
	{NULL, NULL, 0, NULL}
};

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

int CmdHelp(const char *Cmd) {
	CmdsHelp(CommandTable);
	return 0;
}
Commit	Line	Data
db25599d	1	//-----------------------------------------------------------------------------
	2	// Authored by Craig Young <cyoung@tripwire.com> based on cmdlfhid.c structure
	3	//
	4	// cmdlfhid.c is Copyright (C) 2010 iZsh <izsh at fail0verflow.com>
	5	//
	6	// This code is licensed to you under the terms of the GNU GPL, version 2 or,
	7	// at your option, any later version. See the LICENSE.txt file for the text of
	8	// the license.
	9	//-----------------------------------------------------------------------------
	10	// Low frequency AWID26 commands
	11	//-----------------------------------------------------------------------------
	12
	13	#include <stdio.h> // sscanf
	14	#include "proxmark3.h" // Definitions, USB controls, etc
	15	#include "ui.h" // PrintAndLog
	16	#include "cmdparser.h" // CmdsParse, CmdsHelp
	17	#include "cmdlfawid.h" // AWID function declarations
	18	#include "lfdemod.h" // parityTest
a126332a	19	#include "util.h" // weigandparity
a126332a	20	#include "protocols.h" // for T55xx config register definitions
7838f4be	21	#include "cmdmain.h"
a126332a	22
db25599d	23	static int CmdHelp(const char *Cmd);
db25599d	24
db25599d	25	int usage_lf_awid_fskdemod(void) {
a126332a	26	PrintAndLog("Enables AWID26 compatible reader mode printing details of scanned AWID26 tags.");
	27	PrintAndLog("By default, values are printed and logged until the button is pressed or another USB command is issued.");
	28	PrintAndLog("If the ['1'] option is provided, reader mode is exited after reading a single AWID26 card.");
	29	PrintAndLog("");
	30	PrintAndLog("Usage: lf awid fskdemod ['1']");
	31	PrintAndLog("Options :");
	32	PrintAndLog(" 1 : (optional) stop after reading a single card");
	33	PrintAndLog("");
	34	PrintAndLog("Samples : lf awid fskdemod");
	35	PrintAndLog(" : lf awid fskdemod 1");
	36	return 0;
db25599d	37	}
	38
	39	int usage_lf_awid_sim(void) {
a126332a	40	PrintAndLog("Enables simulation of AWID26 card with specified facility-code and card number.");
	41	PrintAndLog("Simulation runs until the button is pressed or another USB command is issued.");
	42	PrintAndLog("Per AWID26 format, the facility-code is 8-bit and the card number is 16-bit. Larger values are truncated.");
	43	PrintAndLog("");
	44	PrintAndLog("Usage: lf awid sim <Facility-Code> <Card-Number>");
	45	PrintAndLog("Options :");
	46	PrintAndLog(" <Facility-Code> : 8-bit value AWID facility code");
	47	PrintAndLog(" <Card Number> : 16-bit value AWID card number");
	48	PrintAndLog("");
	49	PrintAndLog("Sample : lf awid sim 224 1337");
	50	return 0;
db25599d	51	}
	52
	53	int usage_lf_awid_clone(void) {
a126332a	54	PrintAndLog("Enables cloning of AWID26 card with specified facility-code and card number onto T55x7.");
	55	PrintAndLog("The T55x7 must be on the antenna when issuing this command. T55x7 blocks are calculated and printed in the process.");
	56	PrintAndLog("Per AWID26 format, the facility-code is 8-bit and the card number is 16-bit. Larger values are truncated.");
	57	PrintAndLog("");
	58	PrintAndLog("Usage: lf awid clone <Facility-Code> <Card-Number>");
	59	PrintAndLog("Options :");
	60	PrintAndLog(" <Facility-Code> : 8-bit value AWID facility code");
	61	PrintAndLog(" <Card Number> : 16-bit value AWID card number");
	62	PrintAndLog(" Q5 : optional - clone to Q5 (T5555) instead of T55x7 chip");
	63	PrintAndLog("");
	64	PrintAndLog("Sample : lf awid clone 224 1337");
	65	return 0;
db25599d	66	}
db25599d	67
52f2df61	68	int CmdAWIDDemodFSK(const char *Cmd) {
a126332a	69	int findone = 0;
	70	if (Cmd[0] == 'h' \|\| Cmd[0] == 'H') return usage_lf_awid_fskdemod();
	71	if (Cmd[0] == '1') findone = 1;
	72
	73	UsbCommand c = {CMD_AWID_DEMOD_FSK, {findone, 0, 0}};
	74	clearCommandBuffer();
	75	SendCommand(&c);
	76	return 0;
db25599d	77	}
db25599d	78
a126332a	79	//refactored by marshmellow
	80	int getAWIDBits(uint32_t fc, uint32_t cn, uint8_t *AWIDBits) {
	81	uint8_t pre[66];
	82	memset(pre, 0, sizeof(pre));
	83	AWIDBits[7]=1;
	84	num_to_bytebits(26, 8, pre);
52f2df61	85
a126332a	86	uint8_t wiegand[24];
	87	num_to_bytebits(fc, 8, wiegand);
	88	num_to_bytebits(cn, 16, wiegand+8);
52f2df61	89
a126332a	90	wiegand_add_parity(pre+8, wiegand, 24);
	91
	92	size_t bitLen = addParity(pre, AWIDBits+8, 66, 4, 1);
	93	if (bitLen != 88) return 0;
	94	//for (uint8_t i = 0; i<3; i++){
	95	// PrintAndLog("DEBUG: %08X", bytebits_to_byte(AWIDBits+(32*i),32));
	96	//}
52f2df61	97	return 1;
db25599d	98	}
db25599d	99
a126332a	100	int CmdAWIDSim(const char *Cmd) {
	101	uint32_t fcode = 0, cnum = 0, fc=0, cn=0;
	102	uint8_t bits[96];
	103	uint8_t *bs = bits;
	104	size_t size = sizeof(bits);
	105	memset(bs, 0, size);
52f2df61	106
	107	uint64_t arg1 = (10<<8) + 8; // fcHigh = 10, fcLow = 8
	108	uint64_t arg2 = 50; // clk RF/50 invert=0
	109
	110	if (sscanf(Cmd, "%u %u", &fc, &cn ) != 2) return usage_lf_awid_sim();
	111
	112	fcode = (fc & 0x000000FF);
	113	cnum = (cn & 0x0000FFFF);
	114
	115	if (fc!=fcode) PrintAndLog("Facility-Code (%u) truncated to 8-bits: %u", fc, fcode);
	116	if (cn!=cnum) PrintAndLog("Card number (%u) truncated to 16-bits: %u", cn, cnum);
	117
	118	PrintAndLog("Emulating AWID26 -- FC: %u; CN: %u\n", fcode, cnum);
	119	PrintAndLog("Press pm3-button to abort simulation or run another command");
	120
	121	if (!getAWIDBits(fc, cn, bs)) {
	122	PrintAndLog("Error with tag bitstream generation.");
	123	return 1;
	124	}
	125	// AWID uses: fcHigh: 10, fcLow: 8, clk: 50, invert: 0
52f2df61	126	// arg1 --- fcHigh<<8 + fcLow
	127	// arg2 --- Inversion and clk setting
	128	// 96 --- Bitstream length: 96-bits == 12 bytes
a126332a	129	UsbCommand c = {CMD_FSK_SIM_TAG, {arg1, arg2, size}};
a126332a	130	memcpy(c.d.asBytes, bs, size);
52f2df61	131	clearCommandBuffer();
	132	SendCommand(&c);
	133	return 0;
db25599d	134	}
db25599d	135
a126332a	136	int CmdAWIDClone(const char *Cmd) {
	137	uint32_t blocks[4] = {T55x7_MODULATION_FSK2a \| T55x7_BITRATE_RF_50 \| 3<<T55x7_MAXBLOCK_SHIFT, 0, 0, 0};
	138	uint32_t fc=0,cn=0;
	139	uint8_t bits[96];
52f2df61	140	uint8_t *bs=bits;
a126332a	141	memset(bs,0,sizeof(bits));
52f2df61	142
52f2df61	143	if (sscanf(Cmd, "%u %u", &fc, &cn ) != 2) return usage_lf_awid_clone();
f3cfe428	144
a126332a	145	if (param_getchar(Cmd, 3) == 'Q' \|\| param_getchar(Cmd, 3) == 'q')
	146	blocks[0] = T5555_MODULATION_FSK2 \| T5555_INVERT_OUTPUT \| 50<<T5555_BITRATE_SHIFT \| 3<<T5555_MAXBLOCK_SHIFT;
	147
f3cfe428	148	if ((fc & 0xFF) != fc) {
	149	fc &= 0xFF;
	150	PrintAndLog("Facility-Code Truncated to 8-bits (AWID26): %u", fc);
	151	}
	152
	153	if ((cn & 0xFFFF) != cn) {
	154	cn &= 0xFFFF;
	155	PrintAndLog("Card Number Truncated to 16-bits (AWID26): %u", cn);
	156	}
52f2df61	157
	158	if ( !getAWIDBits(fc, cn, bs)) {
	159	PrintAndLog("Error with tag bitstream generation.");
	160	return 1;
	161	}
	162
a126332a	163	blocks[1] = bytebits_to_byte(bs,32);
	164	blocks[2] = bytebits_to_byte(bs+32,32);
	165	blocks[3] = bytebits_to_byte(bs+64,32);
52f2df61	166
a126332a	167	PrintAndLog("Preparing to clone AWID26 to T55x7 with FC: %u, CN: %u",
a126332a	168	fc, cn);
52f2df61	169	PrintAndLog("Blk \| Data ");
	170	PrintAndLog("----+------------");
	171	PrintAndLog(" 00 \| 0x%08x", blocks[0]);
	172	PrintAndLog(" 01 \| 0x%08x", blocks[1]);
	173	PrintAndLog(" 02 \| 0x%08x", blocks[2]);
	174	PrintAndLog(" 03 \| 0x%08x", blocks[3]);
	175
	176	UsbCommand resp;
	177	UsbCommand c = {CMD_T55XX_WRITE_BLOCK, {0,0,0}};
f3cfe428	178
a126332a	179	for (uint8_t i=0; i<4; i++) {
52f2df61	180	c.arg[0] = blocks[i];
	181	c.arg[1] = i;
	182	clearCommandBuffer();
	183	SendCommand(&c);
	184	if (!WaitForResponseTimeout(CMD_ACK, &resp, 1000)){
	185	PrintAndLog("Error occurred, device did not respond during write operation.");
	186	return -1;
f3cfe428	187	}
	188	}
	189	return 0;
db25599d	190	}
db25599d	191
a126332a	192	static command_t CommandTable[] = {
f3cfe428	193	{"help", CmdHelp, 1, "This help"},
	194	{"fskdemod", CmdAWIDDemodFSK, 0, "['1'] Realtime AWID FSK demodulator (option '1' for one tag only)"},
	195	{"sim", CmdAWIDSim, 0, "<Facility-Code> <Card Number> -- AWID tag simulator"},
a126332a	196	{"clone", CmdAWIDClone, 0, "<Facility-Code> <Card Number> <Q5> -- Clone AWID to T55x7"},
f3cfe428	197	{NULL, NULL, 0, NULL}
db25599d	198	};
db25599d	199
a126332a	200	int CmdLFAWID(const char *Cmd) {
f3cfe428	201	CmdsParse(CommandTable, Cmd);
f3cfe428	202	return 0;
db25599d	203	}
db25599d	204
a126332a	205	int CmdHelp(const char *Cmd) {
f3cfe428	206	CmdsHelp(CommandTable);
f3cfe428	207	return 0;
db25599d	208	}