X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/a126332a7b3c85274a9988f8a6994fba930b5f52..1c07ca92c3b9338697a0f2fc0e41790164815aeb:/client/cmdlfawid.c?ds=inline

diff --git a/client/cmdlfawid.c b/client/cmdlfawid.c
index 7709d75b..8b04a3d6 100644
--- a/client/cmdlfawid.c
+++ b/client/cmdlfawid.c
@@ -7,64 +7,114 @@
 // at your option, any later version. See the LICENSE.txt file for the text of
 // the license.
 //-----------------------------------------------------------------------------
-// Low frequency AWID26 commands
+// Low frequency AWID26/50 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("Enables AWID compatible reader mode printing details of scanned AWID26 or AWID50 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("If the [1] option is provided, reader mode is exited after reading a single AWID card.");
 	PrintAndLog("");
-	PrintAndLog("Usage:  lf awid fskdemod ['1']");
-	PrintAndLog("Options :");
-	PrintAndLog("  1 : (optional) stop after reading a single card");
+	PrintAndLog("Usage:  lf awid fskdemod [h] [1]");
+	PrintAndLog("Options:");
+	PrintAndLog("      h :  This help");	
+	PrintAndLog("      1 : (optional) stop after reading a single card");
 	PrintAndLog("");
-	PrintAndLog("Samples : lf awid fskdemod");
-	PrintAndLog("          : lf awid fskdemod 1");
+	PrintAndLog("Samples:");
+	PrintAndLog("       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("Enables simulation of AWID 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("Usage:  lf awid sim [h] <format> <facility-code> <card-number>");
+	PrintAndLog("Options:");
+	PrintAndLog("                h :  This help");	
+	PrintAndLog("         <format> :  format length 26|34|37|50");
+	PrintAndLog("  <facility-code> :  8|16bit value facility code");
+	PrintAndLog("    <card number> :  16|32-bit value card number");
 	PrintAndLog("");
-	PrintAndLog("Sample : lf awid sim 224 1337");
+	PrintAndLog("Samples:");
+	PrintAndLog("       lf awid sim 26 224 1337");
+	PrintAndLog("       lf awid sim 50 2001 13371337");
 	return 0;
 }
 
 int usage_lf_awid_clone(void) {
-	PrintAndLog("Enables cloning of AWID26 card with specified facility-code and card number onto T55x7.");
+	PrintAndLog("Enables cloning of AWID 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("Usage:  lf awid clone [h] <format> <facility-code> <card-number> [Q5]");
+	PrintAndLog("Options:");
+	PrintAndLog("                h :  This help");	
+	PrintAndLog("         <format> :  format length 26|34|37|50");
+	PrintAndLog("  <facility-code> :  8|16bit value facility code");
+	PrintAndLog("    <card number> :  16|32-bit value card number");
+	PrintAndLog("               Q5 :  optional - clone to Q5 (T5555) instead of T55x7 chip");
 	PrintAndLog("");
-	PrintAndLog("Sample  : lf awid clone 224 1337");
+	PrintAndLog("Samples:");
+	PrintAndLog("       lf awid clone 26 224 1337");
+	PrintAndLog("       lf awid clone 50 2001 13371337");
 	return 0;
 }
 
+int usage_lf_awid_brute(void){
+	PrintAndLog("Enables bruteforce of AWID reader with specified facility-code.");
+	PrintAndLog("This is a attack against reader. if cardnumber is given, it starts with it and goes up / down one step");
+	PrintAndLog("if cardnumber is not given, it starts with 1 and goes up to 65535");
+	PrintAndLog("");
+	PrintAndLog("Usage:  lf awid brute [h] a <format> f <facility-code> c <cardnumber> d <delay>");
+	PrintAndLog("Options:");
+	PrintAndLog("       h                 :  This help");
+	PrintAndLog("       a <format>        :  format length 26|50");
+	PrintAndLog("       f <facility-code> :  8|16bit value facility code");
+	PrintAndLog("       c <cardnumber>    :  (optional) cardnumber to start with, max 65535");
+	PrintAndLog("       d <delay>         :  delay betweens attempts in ms. Default 1000ms");
+	PrintAndLog("");
+	PrintAndLog("Samples:");
+	PrintAndLog("       lf awid brute a 26 f 224");
+	PrintAndLog("       lf awid brute a 50 f 2001 d 2000");
+	PrintAndLog("       lf awid brute a 50 f 2001 c 200 d 2000");
+	return 0;
+}
+
+static int sendPing(void){
+	UsbCommand ping = {CMD_PING, {1, 2, 3}};
+	SendCommand(&ping);
+	SendCommand(&ping);	
+	SendCommand(&ping);	
+	clearCommandBuffer();
+	UsbCommand resp;
+	if (WaitForResponseTimeout(CMD_ACK, &resp, 1000))
+		return 0;
+	return 1;
+}
+
+static bool sendTry(uint8_t fmtlen, uint32_t fc, uint32_t cn, uint32_t delay, uint8_t *bs, size_t bs_len){
+
+	PrintAndLog("Trying FC: %u; CN: %u", fc, cn);		
+	if ( !getAWIDBits(fmtlen, fc, cn, bs)) {
+		PrintAndLog("Error with tag bitstream generation.");
+		return FALSE;
+	}
+
+	uint64_t arg1 = (10<<8) + 8; // fcHigh = 10, fcLow = 8
+	uint64_t arg2 = 50; 		 // clk RF/50 invert=0
+	UsbCommand c = {CMD_FSK_SIM_TAG, {arg1, arg2, bs_len}};
+	memcpy(c.d.asBytes, bs, bs_len);
+	clearCommandBuffer();
+	SendCommand(&c);
+	msleep(delay);
+	sendPing();
+	return TRUE;
+}
+
 int CmdAWIDDemodFSK(const char *Cmd) {
 	int findone = 0;
 	if (Cmd[0] == 'h' || Cmd[0] == 'H') return usage_lf_awid_fskdemod();
@@ -76,49 +126,131 @@ int CmdAWIDDemodFSK(const char *Cmd) {
 	return 0;   
 }
 
+int CmdAWIDRead(const char *Cmd) {
+	CmdLFRead("s");
+	getSamples("12000", TRUE);
+	return CmdFSKdemodAWID(Cmd);
+}
+
 //refactored by marshmellow
-int getAWIDBits(uint32_t fc, uint32_t cn, uint8_t	*AWIDBits) {
+int getAWIDBits(uint8_t fmtlen, uint32_t fc, uint32_t cn, uint8_t *bits) {
+
+	// the return bits, preamble 0000 0001 
+	bits[7] = 1;  
+	
 	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);
+	// add formatlength
+	num_to_bytebits(fmtlen, 8, pre);
+	
+	// add facilitycode, cardnumber and wiegand parity bits
+	switch (fmtlen) {
+		case 26:{
+			uint8_t wiegand[24];
+			num_to_bytebits(fc, 8, wiegand);
+			num_to_bytebits(cn, 16, wiegand+8);
+			wiegand_add_parity(pre+8, wiegand,  sizeof(wiegand));
+			break;
+		}
+		case 34:{
+			uint8_t wiegand[32];
+			num_to_bytebits(fc, 8, wiegand);
+			num_to_bytebits(cn, 24, wiegand+8);
+			wiegand_add_parity(pre+8, wiegand,  sizeof(wiegand));
+			break;
+		}
+		case 37:{
+			uint8_t wiegand[31];
+			num_to_bytebits(fc, 13, wiegand);
+			num_to_bytebits(cn, 18, wiegand+13);
+			wiegand_add_parity(pre+8, wiegand,  sizeof(wiegand));
+			break;
+		}
+		case 50: {
+			uint8_t wiegand[48];
+			num_to_bytebits(fc, 16, wiegand);
+			num_to_bytebits(cn, 32, wiegand+16);
+			wiegand_add_parity(pre+8, wiegand, sizeof(wiegand));
+			break;
+		}
+	}
+	
+	// add AWID 4bit parity 
+	size_t bitLen = addParity(pre, bits+8, 66, 4, 1);
 
-	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;
 }
 
+static void verify_values(uint8_t *fmtlen, uint32_t *fc, uint32_t *cn){
+	switch (*fmtlen) {
+		case 50:
+			if ((*fc & 0xFFFF) != *fc) {
+				*fc &= 0xFFFF;
+				PrintAndLog("Facility-Code Truncated to 16-bits (AWID50): %u", *fc);
+			}
+			break;
+		case 37:
+			if ((*fc & 0x1FFF) != *fc) {
+				*fc &= 0x1FFF;
+				PrintAndLog("Facility-Code Truncated to 13-bits (AWID37): %u", *fc);
+			}
+			if ((*cn & 0x3FFFF) != *cn) {
+				*cn &= 0x3FFFF;
+				PrintAndLog("Card Number Truncated to 18-bits (AWID37): %u", *cn);
+			}			
+			break;
+		case 34:
+			if ((*fc & 0xFF) != *fc) {
+				*fc &= 0xFF;
+				PrintAndLog("Facility-Code Truncated to 8-bits (AWID34): %u", *fc);
+			}
+			if ((*cn & 0xFFFFFF) != *cn) {
+				*cn &= 0xFFFFFF;
+				PrintAndLog("Card Number Truncated to 24-bits (AWID34): %u", *cn);
+			}
+			break;
+		case 26:
+		default:
+			*fmtlen = 26;
+			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);
+			}
+			break;
+	}
+}
+
 int CmdAWIDSim(const char *Cmd) {
-	uint32_t fcode = 0, cnum = 0, fc=0, cn=0;
+	uint32_t fc = 0, cn = 0;
+	uint8_t fmtlen = 0;
 	uint8_t bits[96];
 	uint8_t *bs = bits;
 	size_t size = sizeof(bits);
-	memset(bs, 0, size);
+	memset(bs, 0x00, size);
 
-	uint64_t arg1 = (10<<8) + 8; // fcHigh = 10, fcLow = 8
+	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);
+	char cmdp = param_getchar(Cmd, 0);
+	if (strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_awid_sim();
+	
+  	fmtlen = param_get8(Cmd, 0);
+	fc = param_get32ex(Cmd, 1, 0, 10);	
+	cn = param_get32ex(Cmd, 2, 0, 10);
+	if ( !fc || !cn) return usage_lf_awid_sim();
 	
-	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);
+	verify_values(&fmtlen, &fc, &cn);
 	
-	PrintAndLog("Emulating AWID26 -- FC: %u; CN: %u\n", fcode, cnum);
+	PrintAndLog("Emulating AWID %u -- FC: %u; CN: %u\n", fmtlen, fc, cn);
 	PrintAndLog("Press pm3-button to abort simulation or run another command");
 	
-	if (!getAWIDBits(fc, cn, bs)) {
+	if (!getAWIDBits(fmtlen, fc, cn, bs)) {
 		PrintAndLog("Error with tag bitstream generation.");
 		return 1;
 	}
@@ -135,27 +267,28 @@ int CmdAWIDSim(const char *Cmd) {
 
 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;
+	uint32_t fc = 0, cn = 0;
+	uint8_t fmtlen = 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;
+	char cmdp = param_getchar(Cmd, 0);
+	if (strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_awid_clone();
 
-	if ((fc & 0xFF) != fc) {
-		fc &= 0xFF;
-		PrintAndLog("Facility-Code Truncated to 8-bits (AWID26): %u", fc);
-	}
+  	fmtlen = param_get8(Cmd, 0);
+	fc = param_get32ex(Cmd, 1, 0, 10);
+	cn = param_get32ex(Cmd, 2, 0, 10);
 
-	if ((cn & 0xFFFF) != cn) {
-		cn &= 0xFFFF;
-		PrintAndLog("Card Number Truncated to 16-bits (AWID26): %u", cn);
-	}
+	if ( !fc || !cn) return usage_lf_awid_clone();
 	
-	if ( !getAWIDBits(fc, cn, bs)) {
+	if (param_getchar(Cmd, 4) == 'Q' || param_getchar(Cmd, 4) == 'q')
+		//t5555 (Q5) BITRATE = (RF-2)/2 (iceman)
+		blocks[0] = T5555_MODULATION_FSK2 | T5555_INVERT_OUTPUT | 50<<T5555_BITRATE_SHIFT | 3<<T5555_MAXBLOCK_SHIFT;
+
+	verify_values(&fmtlen, &fc, &cn);
+		
+	if ( !getAWIDBits(fmtlen, fc, cn, bs)) {
 		PrintAndLog("Error with tag bitstream generation.");
 		return 1;
 	}	
@@ -164,8 +297,7 @@ int CmdAWIDClone(const char *Cmd) {
 	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("Preparing to clone AWID %u to T55x7 with FC: %u, CN: %u", fmtlen, fc, cn);
 	PrintAndLog("Blk | Data ");
 	PrintAndLog("----+------------");
 	PrintAndLog(" 00 | 0x%08x", blocks[0]);
@@ -181,7 +313,7 @@ int CmdAWIDClone(const char *Cmd) {
 		c.arg[1] = i;
 		clearCommandBuffer();
 		SendCommand(&c);
-		if (!WaitForResponseTimeout(CMD_ACK, &resp, 1000)){
+		if (!WaitForResponseTimeout(CMD_ACK, &resp, 1500)){
 			PrintAndLog("Error occurred, device did not respond during write operation.");
 			return -1;
 		}
@@ -189,15 +321,113 @@ int CmdAWIDClone(const char *Cmd) {
 	return 0;
 }
 
+int CmdAWIDBrute(const char *Cmd){
+	
+	bool errors = false;
+	uint32_t fc = 0, cn = 0, delay = 1000;
+	uint8_t fmtlen = 0;
+	uint8_t bits[96];
+	uint8_t *bs = bits;
+	size_t size = sizeof(bits);
+	memset(bs, 0x00, size);
+	uint8_t cmdp = 0;
+	
+	while(param_getchar(Cmd, cmdp) != 0x00 && !errors) {
+		switch(param_getchar(Cmd, cmdp)) {
+		case 'h':
+		case 'H':
+			return usage_lf_awid_brute();
+		case 'f':
+		case 'F':
+		  	fc =  param_get32ex(Cmd ,cmdp+1, 0, 10);
+			if ( !fc )
+				errors = true;
+			cmdp += 2;
+			break;
+		case 'd':
+		case 'D':
+			// delay between attemps,  defaults to 1000ms. 
+			delay = param_get32ex(Cmd, cmdp+1, 1000, 10);
+			cmdp += 2;
+			break;
+		case 'c':
+		case 'C':
+			cn = param_get32ex(Cmd, cmdp+1, 0, 10);
+			// truncate cardnumber.
+			cn &= 0xFFFF;
+			cmdp += 2;
+			break;
+		case 'a':
+		case 'A':
+			fmtlen = param_get8(Cmd, cmdp+1);
+			cmdp += 2;
+			break;
+		default:
+			PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
+			errors = true;
+			break;
+		}
+	}
+	if ( fc == 0 )errors = true;
+	if ( errors ) return usage_lf_awid_brute();
+
+	// limit fc according to selected format
+	switch(fmtlen) {
+		case 50:
+			if ((fc & 0xFFFF) != fc) {
+				fc &= 0xFFFF;
+				PrintAndLog("Facility-code truncated to 16-bits (AWID50): %u", fc);
+			}
+			break;
+		default:
+			if ((fc & 0xFF) != fc) {
+				fc &= 0xFF;
+				PrintAndLog("Facility-code truncated to 8-bits (AWID26): %u", fc);
+			}
+			break;
+	}
+	
+	PrintAndLog("Bruteforceing AWID %d Reader", fmtlen);
+	PrintAndLog("Press pm3-button to abort simulation or press key");
+
+	uint16_t up = cn;
+	uint16_t down = cn;
+	
+	for (;;){
+	
+		if ( offline ) {
+			printf("Device offline\n");
+			return  2;
+		}
+		if (ukbhit()) {
+			PrintAndLog("aborted via keyboard!");
+			return sendPing();
+		}
+		
+		// Do one up
+		if ( up < 0xFFFF )
+			if ( !sendTry(fmtlen, fc, up++, delay, bs, size)) return 1;
+		
+		// Do one down  (if cardnumber is given)
+		if ( cn > 1 )
+			if ( down > 1 )
+				if ( !sendTry(fmtlen, fc, --down, delay, bs, size)) 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"},
+	{"fskdemod",  CmdAWIDDemodFSK, 0, "Realtime AWID FSK demodulator"},
+	{"read",      CmdAWIDRead,     0, "Attempt to read and extract tag data"},
+	{"sim",       CmdAWIDSim,      0, "AWID tag simulator"},
+	{"clone",     CmdAWIDClone,    0, "Clone AWID to T55x7"},
+	{"brute",	  CmdAWIDBrute,	   0, "Bruteforce card number against reader"},
 	{NULL, NULL, 0, NULL}
 };
 
 int CmdLFAWID(const char *Cmd) {
+	clearCommandBuffer();
 	CmdsParse(CommandTable, Cmd);
 	return 0;
 }