X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/8e21541e77dd0909a99a1ed1106a6df87d34a247..refs/pull/837/head:/client/cmdlfawid.c?ds=inline

diff --git a/client/cmdlfawid.c b/client/cmdlfawid.c
index 06397e70..cde94555 100644
--- a/client/cmdlfawid.c
+++ b/client/cmdlfawid.c
@@ -8,29 +8,36 @@
 // the license.
 //-----------------------------------------------------------------------------
 // Low frequency AWID26 commands
+// FSK2a, RF/50, 96 bits (complete)
 //-----------------------------------------------------------------------------
 
+#include "cmdlfawid.h"
+
+#include <string.h>
 #include <stdio.h>      // sscanf
-#include "proxmark3.h"  // Definitions, USB controls, etc
+#include "comms.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 "lfdemod.h"    // parityTest +
+#include "util.h"       // weigandparity
+#include "protocols.h"  // for T55xx config register definitions
+#include "cmddata.h"    // for printDemod and demodbuffer commands
+#include "graph.h"      // for getFromGraphBuff cmds
 #include "cmdmain.h"
-static int CmdHelp(const char *Cmd);
 
+static int CmdHelp(const char *Cmd);
 
-int usage_lf_awid_fskdemod(void) {
+int usage_lf_awid_read(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("Usage:  lf awid read ['1']");
+	PrintAndLog("Options : ");
 	PrintAndLog("  1 : (optional) stop after reading a single card");
 	PrintAndLog("");
-	PrintAndLog("   sample : lf awid fskdemod");
-	PrintAndLog("          : lf awid fskdemod 1");
+	PrintAndLog("Samples : lf awid read");
+	PrintAndLog("        : lf awid read 1");
 	return 0;
 }
 
@@ -40,11 +47,11 @@ int usage_lf_awid_sim(void) {
 	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("Options : ");
 	PrintAndLog("  <Facility-Code> : 8-bit value representing the AWID facility code");
 	PrintAndLog("  <Card Number>   : 16-bit value representing the AWID card number");
 	PrintAndLog("");
-	PrintAndLog("   sample : lf awid sim 224 1337");
+	PrintAndLog("Sample : lf awid sim 224 1337");
 	return 0;
 }
 
@@ -54,133 +61,189 @@ int usage_lf_awid_clone(void) {
 	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("Options : ");
 	PrintAndLog("  <Facility-Code> : 8-bit value representing the AWID facility code");
 	PrintAndLog("  <Card Number>   : 16-bit value representing the AWID card number");
+	PrintAndLog("  Q5              : optional - clone to Q5 (T5555) instead of T55x7 chip");
 	PrintAndLog("");
-	PrintAndLog("   sample : lf awid clone 224 1337");
+	PrintAndLog("Sample  : lf awid clone 224 1337");
 	return 0;
 }
 
-int CmdAWIDDemodFSK(const char *Cmd)
-{
+int CmdAWIDReadFSK(const char *Cmd) {
 	int findone=0;
-	if(Cmd[0]=='1') findone=1;
-	if (Cmd[0]=='h' || Cmd[0] == 'H') return usage_lf_awid_fskdemod();
-	UsbCommand c={CMD_AWID_DEMOD_FSK};
-	c.arg[0]=findone;
+	if (Cmd[0] == 'h' || Cmd[0] == 'H') return usage_lf_awid_read();
+	if (Cmd[0] == '1') findone = 1;
+
+	UsbCommand c = {CMD_AWID_DEMOD_FSK, {findone, 0, 0}};
+	clearCommandBuffer();
 	SendCommand(&c);
 	return 0;   
 }
-
-int getAWIDBits(unsigned int fc, unsigned int cn, uint8_t *AWIDBits)
+//by marshmellow
+//AWID Prox demod - FSK RF/50 with preamble of 00000001  (always a 96 bit data stream)
+//print full AWID Prox ID and some bit format details if found
+int CmdFSKdemodAWID(const char *Cmd)
 {
-	int i;
-	uint32_t fcode=(fc & 0x000000FF), cnum=(cn & 0x0000FFFF), uBits=0;
-	if (fcode != fc)
-		PrintAndLog("NOTE: Facility code truncated for AWID26 format (8-bit facility code)");
-	if (cnum!=cn)
-		PrintAndLog("NOTE: Card number was truncated for AWID26 format (16-bit card number)");
-
-	AWIDBits[0] = 0x01; // 6-bit Preamble with 2 parity bits
-	AWIDBits[1] = 0x1D; // First byte from card format (26-bit) plus parity bits
-	AWIDBits[2] = 0x80; // Set the next two bits as 0b10 to finish card format
-	uBits = (fcode<<4) + (cnum>>12);
-	if (!parityTest(uBits,12,0))
-		AWIDBits[2] |= (1<<5); // If not already even parity, set bit to make even
-	uBits = AWIDBits[2]>>5;
-	if (!parityTest(uBits, 3, 1))
-		AWIDBits[2] |= (1<<4);
-	uBits = fcode>>5; // first 3 bits of facility-code
-	AWIDBits[2] += (uBits<<1);
-	if (!parityTest(uBits, 3, 1))
-		AWIDBits[2]++; // Set parity bit to make odd parity
-	uBits = (fcode & 0x1C)>>2;
-	AWIDBits[3] = 0;
-	if (!parityTest(uBits,3,1))
-		AWIDBits[3] |= (1<<4);
-	AWIDBits[3] += (uBits<<5);
-	uBits = ((fcode & 0x3)<<1) + ((cnum & 0x8000)>>15); // Grab/shift 2 LSBs from facility code and add shifted MSB from cardnum
-	if (!parityTest(uBits,3,1))
-		AWIDBits[3]++; // Set LSB for parity
-	AWIDBits[3]+= (uBits<<1);
-	uBits = (cnum & 0x7000)>>12;
-	AWIDBits[4] = uBits<<5;
-	if (!parityTest(uBits,3,1))
-		AWIDBits[4] |= (1<<4);
-	uBits = (cnum & 0x0E00)>>9;
-	AWIDBits[4] += (uBits<<1);
-	if (!parityTest(uBits,3,1))
-		AWIDBits[4]++; // Set LSB for parity
-	uBits = (cnum & 0x1C0)>>6; // Next bits from card number
-	AWIDBits[5]=(uBits<<5);
-	if (!parityTest(uBits,3,1))
-		AWIDBits[5] |= (1<<4); // Set odd parity bit as needed
-	uBits = (cnum & 0x38)>>3;
-	AWIDBits[5]+= (uBits<<1);
-	if (!parityTest(uBits,3,1))
-		AWIDBits[5]++; // Set odd parity bit as needed
-	uBits = (cnum & 0x7); // Last three bits from card number!
-	AWIDBits[6] = (uBits<<5);
-	if (!parityTest(uBits,3,1))
-		AWIDBits[6] |= (1<<4);
-	uBits = (cnum & 0x0FFF);
-	if (!parityTest(uBits,12,1))
-		AWIDBits[6] |= (1<<3);
-	else
-		AWIDBits[6]++;
-	for (i = 7; i<12; i++)
-		AWIDBits[i]=0x11;
+	uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
+	size_t size = getFromGraphBuf(BitStream);
+	if (size==0) return 0;
+
+	int waveIdx = 0;
+	//get binary from fsk wave
+	int idx = AWIDdemodFSK(BitStream, &size, &waveIdx);
+	if (idx<=0){
+		if (g_debugMode){
+			if (idx == -1)
+				PrintAndLog("DEBUG: Error - not enough samples");
+			else if (idx == -2)
+				PrintAndLog("DEBUG: Error - only noise found");
+			else if (idx == -3)
+				PrintAndLog("DEBUG: Error - problem during FSK demod");
+			else if (idx == -4)
+				PrintAndLog("DEBUG: Error - AWID preamble not found");
+			else if (idx == -5)
+				PrintAndLog("DEBUG: Error - Size not correct: %d", size);
+			else
+				PrintAndLog("DEBUG: Error %d",idx);
+		}
+		return 0;
+	}
+
+	// Index map
+	// 0            10            20            30              40            50              60
+	// |            |             |             |               |             |               |
+	// 01234567 890 1 234 5 678 9 012 3 456 7 890 1 234 5 678 9 012 3 456 7 890 1 234 5 678 9 012 3 - to 96
+	// -----------------------------------------------------------------------------
+	// 00000001 000 1 110 1 101 1 011 1 101 1 010 0 000 1 000 1 010 0 001 0 110 1 100 0 000 1 000 1
+	// premable bbb o bbb o bbw o fff o fff o ffc o ccc o ccc o ccc o ccc o ccc o wxx o xxx o xxx o - to 96
+	//          |---26 bit---|    |-----117----||-------------142-------------|
+	// b = format bit len, o = odd parity of last 3 bits
+	// f = facility code, c = card number
+	// w = wiegand parity
+	// (26 bit format shown)
+ 
+	//get raw ID before removing parities
+	uint32_t rawLo = bytebits_to_byte(BitStream+idx+64,32);
+	uint32_t rawHi = bytebits_to_byte(BitStream+idx+32,32);
+	uint32_t rawHi2 = bytebits_to_byte(BitStream+idx,32);
+	setDemodBuf(BitStream,96,idx);
+	setClockGrid(50, waveIdx + (idx*50));
+
+	size = removeParity(BitStream, idx+8, 4, 1, 88);
+	if (size != 66){
+		if (g_debugMode) PrintAndLog("DEBUG: Error - at parity check-tag size does not match AWID format");
+		return 0;
+	}
+	// ok valid card found!
+
+	// Index map
+	// 0           10         20        30          40        50        60
+	// |           |          |         |           |         |         |
+	// 01234567 8 90123456 7890123456789012 3 456789012345678901234567890123456
+	// -----------------------------------------------------------------------------
+	// 00011010 1 01110101 0000000010001110 1 000000000000000000000000000000000
+	// bbbbbbbb w ffffffff cccccccccccccccc w xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
+	// |26 bit|   |-117--| |-----142------|
+	// b = format bit len, o = odd parity of last 3 bits
+	// f = facility code, c = card number
+	// w = wiegand parity
+	// (26 bit format shown)
+
+	uint32_t fc = 0;
+	uint32_t cardnum = 0;
+	uint32_t code1 = 0;
+	uint32_t code2 = 0;
+	uint8_t fmtLen = bytebits_to_byte(BitStream,8);
+	if (fmtLen==26){
+		fc = bytebits_to_byte(BitStream+9, 8);
+		cardnum = bytebits_to_byte(BitStream+17, 16);
+		code1 = bytebits_to_byte(BitStream+8,fmtLen);
+		PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, rawHi2, rawHi, rawLo);
+	} else {
+		cardnum = bytebits_to_byte(BitStream+8+(fmtLen-17), 16);
+		if (fmtLen>32){
+			code1 = bytebits_to_byte(BitStream+8,fmtLen-32);
+			code2 = bytebits_to_byte(BitStream+8+(fmtLen-32),32);
+			PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, code2, rawHi2, rawHi, rawLo);
+		} else{
+			code1 = bytebits_to_byte(BitStream+8,fmtLen);
+			PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, rawHi2, rawHi, rawLo);
+		}
+	}
+	if (g_debugMode){
+		PrintAndLog("DEBUG: idx: %d, Len: %d Printing Demod Buffer:", idx, 96);
+		printDemodBuff();
+	}
+	//todo - convert hi2, hi, lo to demodbuffer for future sim/clone commands
 	return 1;
 }
 
-int CmdAWIDSim(const char *Cmd)
-{
-	uint32_t fcode = 0, cnum = 0, fc=0, cn=0, i=0;
-	uint8_t *BS, BitStream[12];
+//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 BitStream[96];
+	uint8_t *bs = BitStream;
+	size_t size = sizeof(BitStream);
+	memset(bs, 0, size);
+
 	uint64_t arg1 = (10<<8) + 8; // fcHigh = 10, fcLow = 8
 	uint64_t arg2 = 50; // clk RF/50 invert=0
-	BS = BitStream;
-	if (sscanf(Cmd, "%u %u", &fc, &cn ) != 2) {
-		return usage_lf_awid_sim();
-	}
+	
+	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);
 
-	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
-	if (getAWIDBits(fc, cn, BS)) {
-			PrintAndLog("Running 'lf simfsk c 50 H 10 L 8 d %02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x'", 
-																				BS[0],BS[1],BS[2],BS[3],BS[4],BS[5],BS[6],
-																				BS[7],BS[8],BS[9],BS[10],BS[11]);
-		} else
-			PrintAndLog("Error with tag bitstream generation.");
-	UsbCommand c;
-	c.cmd = CMD_FSK_SIM_TAG;
-	c.arg[0] = arg1; // fcHigh<<8 + fcLow
-	c.arg[1] = arg2; // Inversion and clk setting
-	c.arg[2] = 96; // Bitstream length: 96-bits == 12 bytes
-	for (i=0; i < 96; i++)
-		c.d.asBytes[i] = (BS[i/8] & (1<<(7-(i%8))))?1:0;
+	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 fc=0,cn=0,blocks[4] = {0x00107060, 0, 0, 0x11111111}, i=0;
-	uint8_t BitStream[12];
-	uint8_t *BS=BitStream;
-	UsbCommand c, resp;
+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 BitStream[96];
+	uint8_t *bs=BitStream;
+	memset(bs,0,sizeof(BitStream));
 
-	if (sscanf(Cmd, "%u %u", &fc, &cn ) != 2) {
-		return usage_lf_awid_clone();
-	}
+	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 | ((50-2)>>1)<<T5555_BITRATE_SHIFT | 3<<T5555_MAXBLOCK_SHIFT;
 
 	if ((fc & 0xFF) != fc) {
 		fc &= 0xFF;
@@ -190,48 +253,59 @@ int CmdAWIDClone(const char *Cmd)
 		cn &= 0xFFFF;
 		PrintAndLog("Card Number Truncated to 16-bits (AWID26): %u", cn);
 	}
-	if (getAWIDBits(fc,cn,BS)) {
-		PrintAndLog("Preparing to clone AWID26 to T55x7 with FC: %u, CN: %u (Raw: %02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x)", 
-									fc,cn, BS[0],BS[1],BS[2],BS[3],BS[4],BS[5],BS[6],BS[7],BS[8],BS[9],BS[10],BS[11]);
-		blocks[1] = (BS[0]<<24) + (BS[1]<<16) + (BS[2]<<8) + (BS[3]);
-		blocks[2] = (BS[4]<<24) + (BS[5]<<16) + (BS[6]<<8) + (BS[7]);
-		PrintAndLog("Block 0: 0x%08x", blocks[0]);
-		PrintAndLog("Block 1: 0x%08x", blocks[1]);
-		PrintAndLog("Block 2: 0x%08x", blocks[2]);
-		PrintAndLog("Block 3: 0x%08x", blocks[3]);
-		for (i=0; i<4; i++) {
-			c.cmd = CMD_T55XX_WRITE_BLOCK;
-			c.arg[0] = blocks[i];
-			c.arg[1] = i;
-			c.arg[2] = 0;
-			SendCommand(&c);
-			if (!WaitForResponseTimeout(CMD_ACK, &resp, 1000)){
-				PrintAndLog("Error occurred, device did not respond during write operation.");
-				return -1;
-			}
 
+	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.cmd = CMD_T55XX_WRITE_BLOCK;
+		c.arg[0] = blocks[i];
+		c.arg[1] = i;
+		c.arg[2] = 0;
+		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)"},
+static command_t CommandTable[] = {
+	{"help",      CmdHelp,         1, "This help"},
+	{"demod",     CmdFSKdemodAWID, 1, "Demodulate an AWID FSK tag from the GraphBuffer"},
+	{"read",      CmdAWIDReadFSK,  0, "['1'] Realtime AWID FSK read from the antenna (option '1' for one tag only)"},
 	{"sim",       CmdAWIDSim,      0, "<Facility-Code> <Card Number> -- AWID tag simulator"},
-	{"clone",     CmdAWIDClone,    0, "<Facility-Code> <Card Number> -- Clone AWID to T55x7 (tag must be in range of antenna)"},
+	{"clone",     CmdAWIDClone,    0, "<Facility-Code> <Card Number> <Q5> -- Clone AWID to T55x7 (tag must be in range of antenna)"},
 	{NULL, NULL, 0, NULL}
 };
 
-int CmdLFAWID(const char *Cmd)
-{
+int CmdLFAWID(const char *Cmd) {
 	CmdsParse(CommandTable, Cmd);
 	return 0;
 }
 
-int CmdHelp(const char *Cmd)
-{
+int CmdHelp(const char *Cmd) {
 	CmdsHelp(CommandTable);
 	return 0;
 }