X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/9682ed9aaa4de9a0d9459eb6e51a27a2702b7f83..c24364a8a4932f51a9b9e255d2ed0c67b9e37c74:/client/cmdlft55xx.c

diff --git a/client/cmdlft55xx.c b/client/cmdlft55xx.c
index 5eff8ac1..5b650b30 100644
--- a/client/cmdlft55xx.c
+++ b/client/cmdlft55xx.c
@@ -6,28 +6,7 @@
 //-----------------------------------------------------------------------------
 // Low frequency T55xx commands
 //-----------------------------------------------------------------------------
-
-#include <stdio.h>
-#include <string.h>
-#include <inttypes.h>
-#include "proxmark3.h"
-#include "ui.h"
-#include "graph.h"
-#include "cmdmain.h"
-#include "cmdparser.h"
-#include "cmddata.h"
-#include "cmdlf.h"
 #include "cmdlft55xx.h"
-#include "util.h"
-#include "data.h"
-#include "lfdemod.h"
-#include "cmdhf14a.h" //for getTagInfo
-
-#define T55x7_CONFIGURATION_BLOCK 0x00
-#define T55x7_PAGE0 0x00
-#define T55x7_PAGE1 0x01
-#define T55x7_PWD	0x00000010
-#define REGULAR_READ_MODE_BLOCK 0xFF
 
 // Default configuration
 t55xx_conf_block_t config = { .modulation = DEMOD_ASK, .inverted = FALSE, .offset = 0x00, .block0 = 0x00, .Q5 = FALSE };
@@ -150,6 +129,7 @@ int usage_t55xx_wakup(){
 int usage_t55xx_bruteforce(){
 	PrintAndLog("This command uses A) bruteforce to scan a number range");
 	PrintAndLog("                  B) a dictionary attack");
+	PrintAndLog("press 'enter' to cancel the command");
     PrintAndLog("Usage: lf t55xx bruteforce [h] <start password> <end password> [i <*.dic>]");
     PrintAndLog("       password must be 4 bytes (8 hex symbols)");
 	PrintAndLog("Options:");
@@ -166,6 +146,7 @@ int usage_t55xx_bruteforce(){
 }
 int usage_t55xx_recoverpw(){
 	PrintAndLog("This command uses a few tricks to try to recover mangled password");
+	PrintAndLog("press 'enter' to cancel the command");
 	PrintAndLog("WARNING: this may brick non-password protected chips!");
 	PrintAndLog("Usage: lf t55xx recoverpw [password]");
 	PrintAndLog("       password must be 4 bytes (8 hex symbols)");
@@ -195,8 +176,8 @@ static int CmdHelp(const char *Cmd);
 
 void printT5xxHeader(uint8_t page){
 	PrintAndLog("Reading Page %d:", page);	
-	PrintAndLog("blk | hex data | binary                          | ascii");
-	PrintAndLog("----+----------+---------------------------------+-------");	
+	PrintAndLog("blk | hex data | binary                           | ascii");
+	PrintAndLog("----+----------+----------------------------------+-------");	
 }
 
 int CmdT55xxSetConfig(const char *Cmd) {
@@ -634,6 +615,7 @@ bool tryDetectModulation(){
 				tests[hits].ST = FALSE;
 				++hits;
 			}
+			//ICEMAN: are these PSKDemod calls needed?
 			// PSK2 - needs a call to psk1TOpsk2.
 			if ( PSKDemod("0 0 6", FALSE)) {
 				psk1TOpsk2(DemodBuffer, DemodBufferLen);
@@ -674,13 +656,46 @@ bool tryDetectModulation(){
 		return TRUE;
 	}
 	
+	bool retval = FALSE;
 	if ( hits > 1) {
 		PrintAndLog("Found [%d] possible matches for modulation.",hits);
 		for(int i=0; i<hits; ++i){
-			PrintAndLog("--[%d]---------------", i+1);
+			retval = testKnownConfigBlock(tests[i].block0);
+			if ( retval ) {				
+				PrintAndLog("--[%d]--------------- << selected this", i+1);
+				config.modulation = tests[i].modulation;
+				config.bitrate = tests[i].bitrate;
+				config.inverted = tests[i].inverted;
+				config.offset = tests[i].offset;
+				config.block0 = tests[i].block0;
+				config.Q5 = tests[i].Q5;
+				config.ST = tests[i].ST;
+			} else {
+				PrintAndLog("--[%d]---------------", i+1);
+			}
 			printConfiguration( tests[i] );
 		}
 	}
+	return retval;
+}
+
+bool testKnownConfigBlock(uint32_t block0) {
+	switch(block0){
+		case T55X7_DEFAULT_CONFIG_BLOCK:
+		case T55X7_RAW_CONFIG_BLOCK:
+		case T55X7_EM_UNIQUE_CONFIG_BLOCK:
+		case T55X7_FDXB_CONFIG_BLOCK:
+		case T55X7_HID_26_CONFIG_BLOCK:
+		case T55X7_PYRAMID_CONFIG_BLOCK:
+		case T55X7_INDALA_64_CONFIG_BLOCK:
+		case T55X7_INDALA_224_CONFIG_BLOCK:
+		case T55X7_GUARDPROXII_CONFIG_BLOCK:
+		case T55X7_VIKING_CONFIG_BLOCK:
+		case T55X7_NORALYS_CONFIG_BLOCK:
+		case T55X7_IOPROX_CONFIG_BLOCK:
+		case T55X7_PRESCO_CONFIG_BLOCK:
+			return TRUE;
+	}
 	return FALSE;
 }
 
@@ -874,8 +889,8 @@ int special(const char *Cmd) {
 	uint32_t blockData = 0;
 	uint8_t bits[32] = {0x00};
 
-	PrintAndLog("OFFSET | DATA  | BINARY                             | ASCII");
-	PrintAndLog("-------+-------+------------------------------------+------");
+	PrintAndLog("OFFSET | DATA  | BINARY                              | ASCII");
+	PrintAndLog("-------+-------+-------------------------------------+------");
 	int i,j = 0;
 	for (; j < 64; ++j){
 		
@@ -1396,10 +1411,9 @@ void t55x7_create_config_block( int tagtype ){
 
 int CmdResetRead(const char *Cmd) {
 	UsbCommand c = {CMD_T55XX_RESET_READ, {0,0,0}};
-
 	clearCommandBuffer();
 	SendCommand(&c);
-	if ( !WaitForResponseTimeout(CMD_ACK,NULL,2500) ) {
+	if ( !WaitForResponseTimeout(CMD_ACK, NULL, 2500) ) {
 		PrintAndLog("command execution time out");
 		return 0;
 	}
@@ -1423,11 +1437,10 @@ int CmdT55xxWipe(const char *Cmd) {
 	// With a pwd should work even if pwd bit not set
 	PrintAndLog("\nBeginning Wipe of a T55xx tag (assuming the tag is not password protected)\n");
 		
-	if ( Q5 ){
+	if ( Q5 )
 		snprintf(ptrData,sizeof(writeData),"b 0 d 6001F004 p 0");
-	} else {
+	else
 		snprintf(ptrData,sizeof(writeData),"b 0 d 000880E0 p 0");
-	}
 	
 	if (!CmdT55xxWriteBlock(ptrData)) PrintAndLog("Error writing blk 0");
 	
@@ -1442,23 +1455,34 @@ int CmdT55xxWipe(const char *Cmd) {
 	return 0;
 }
 
+bool IsCancelled(void) {
+	if (ukbhit()) {
+		int ch = getchar();
+		(void)ch;
+		printf("\naborted via keyboard!\n");
+		return TRUE;
+	}
+	return FALSE;
+}
+
 int CmdT55xxBruteForce(const char *Cmd) {
 	
 	// load a default pwd file.
-	char buf[9];
+	char line[9];
 	char filename[FILE_PATH_SIZE]={0};
 	int	keycnt = 0;
-	int ch;
 	uint8_t stKeyBlock = 20;
 	uint8_t *keyBlock = NULL, *p = NULL;
     uint32_t start_password = 0x00000000; //start password
     uint32_t end_password   = 0xFFFFFFFF; //end   password
     bool found = false;
 
+	memset(line, 0, sizeof(line));
+	
     char cmdp = param_getchar(Cmd, 0);
 	if (cmdp == 'h' || cmdp == 'H') return usage_t55xx_bruteforce();
 
-	keyBlock = calloc(stKeyBlock, 6);
+	keyBlock = calloc(stKeyBlock, 4);
 	if (keyBlock == NULL) return 1;
 
 	if (cmdp == 'i' || cmdp == 'I') {
@@ -1473,45 +1497,47 @@ int CmdT55xxBruteForce(const char *Cmd) {
 			free(keyBlock);
 			return 1;
 		}			
-			
-		while( fgets(buf, sizeof(buf), f) ){
-			if (strlen(buf) < 8 || buf[7] == '\n') continue;
 		
-			while (fgetc(f) != '\n' && !feof(f)) ;  //goto next line
-			
+		while( fgets(line, sizeof(line), f) ){
+			if (strlen(line) < 8 || line[7] == '\n') continue;
+		
+			//goto next line
+			while (fgetc(f) != '\n' && !feof(f)) ;
+		
 			//The line start with # is comment, skip
-			if( buf[0]=='#' ) continue;
+			if( line[0]=='#' ) continue;
 
-			if (!isxdigit(buf[0])){
-				PrintAndLog("File content error. '%s' must include 8 HEX symbols", buf);
+			if (!isxdigit(line[0])) {
+				PrintAndLog("File content error. '%s' must include 8 HEX symbols", line);
 				continue;
 			}
 			
-			buf[8] = 0;
-
+			line[8] = 0;		
+			
+			// realloc keyblock array size.
 			if ( stKeyBlock - keycnt < 2) {
-				p = realloc(keyBlock, 6*(stKeyBlock+=10));
+				p = realloc(keyBlock, 4 * (stKeyBlock += 10));
 				if (!p) {
 					PrintAndLog("Cannot allocate memory for defaultKeys");
 					free(keyBlock);
-					if (f) {
+					if (f)
 						fclose(f);
-						f = NULL;
-					}
 					return 2;
 				}
 				keyBlock = p;
 			}
+			// clear mem
 			memset(keyBlock + 4 * keycnt, 0, 4);
-			num_to_bytes(strtoll(buf, NULL, 16), 4, keyBlock + 4*keycnt);
-			PrintAndLog("chk custom pwd[%2d] %08X", keycnt, bytes_to_num(keyBlock + 4*keycnt, 4));
-			keycnt++;
-			memset(buf, 0, sizeof(buf));
+			
+			num_to_bytes( strtoll(line, NULL, 16), 4, keyBlock + 4*keycnt);
+			
+			PrintAndLog("chk custom pwd[%2d] %08X", keycnt, bytes_to_num(keyBlock + 4 * keycnt, 4) );			
+			keycnt++;			
+			memset(line, 0, sizeof(line));
 		}		
-		if (f) {
+		if (f)
 			fclose(f);
-			f = NULL;
-		}
+		
 		if (keycnt == 0) {
 			PrintAndLog("No keys found in file");
 			free(keyBlock);
@@ -1529,10 +1555,7 @@ int CmdT55xxBruteForce(const char *Cmd) {
 				return  2;
 			}
 		
-			if (ukbhit()) {
-				ch = getchar();
-				(void)ch;
-				printf("\naborted via keyboard!\n");
+			if (IsCancelled()) {
 				free(keyBlock);
 				return 0;
 			}
@@ -1542,7 +1565,7 @@ int CmdT55xxBruteForce(const char *Cmd) {
 			PrintAndLog("Testing %08X", testpwd);
 						
 			if ( !AquireData(T55x7_PAGE0, T55x7_CONFIGURATION_BLOCK, TRUE, testpwd)) {
-				PrintAndLog("Aquireing data from device failed. Quitting");
+				PrintAndLog("Acquire data from device failed. Quitting");
 				free(keyBlock);
 				return 0;
 			}
@@ -1550,8 +1573,8 @@ int CmdT55xxBruteForce(const char *Cmd) {
 			found = tryDetectModulation();
 			if ( found ) {
 				PrintAndLog("Found valid password: [%08X]", testpwd);
-				free(keyBlock);
-				return 0;
+				//free(keyBlock);
+				//return 0;
 			} 
 		}
 		PrintAndLog("Password NOT found.");
@@ -1578,16 +1601,14 @@ int CmdT55xxBruteForce(const char *Cmd) {
 
 		printf(".");
 		fflush(stdout);
-		if (ukbhit()) {
-			ch = getchar();
-			(void)ch;
-			printf("\naborted via keyboard!\n");
+		
+		if (IsCancelled()) {
 			free(keyBlock);
 			return 0;
 		}
 			
 		if (!AquireData(T55x7_PAGE0, T55x7_CONFIGURATION_BLOCK, TRUE, i)) {
-			PrintAndLog("Aquireing data from device failed. Quitting");
+			PrintAndLog("Acquire data from device failed. Quitting");
 			free(keyBlock);
 			return 0;
 		}
@@ -1611,7 +1632,7 @@ int CmdT55xxBruteForce(const char *Cmd) {
 int tryOnePassword(uint32_t password) {
 	PrintAndLog("Trying password %08x", password);
 	if (!AquireData(T55x7_PAGE0, T55x7_CONFIGURATION_BLOCK, TRUE, password)) {
-		PrintAndLog("Aquireing data from device failed. Quitting");
+		PrintAndLog("Acquire data from device failed. Quitting");
 		return -1;
 	}
 
@@ -1628,21 +1649,19 @@ int CmdT55xxRecoverPW(const char *Cmd) {
 	uint32_t prev_password = 0xffffffff;
 	uint32_t mask = 0x0;
 	int found = 0;
-
 	char cmdp = param_getchar(Cmd, 0);
 	if (cmdp == 'h' || cmdp == 'H') return usage_t55xx_recoverpw();
 
 	orig_password = param_get32ex(Cmd, 0, 0x51243648, 16); //password used by handheld cloners
 
 	// first try fliping each bit in the expected password
-	while ((found != 1) && (bit < 32)) {
+	while (bit < 32) {
 		curr_password = orig_password ^ ( 1 << bit );
 		found = tryOnePassword(curr_password);
-		if (found == 1)
-			goto done;
-		else if (found == -1)
-			return 0;
+		if (found == -1) return 0;
 		bit++;
+		
+		if (IsCancelled()) return 0;
 	}
 
 	// now try to use partial original password, since block 7 should have been completely
@@ -1651,7 +1670,7 @@ int CmdT55xxRecoverPW(const char *Cmd) {
 	// not sure from which end the bit bits are written, so try from both ends 
 	// from low bit to high bit
 	bit = 0;
-	while ((found != 1) && (bit < 32)) {
+	while (bit < 32) {
 		mask += ( 1 << bit );
 		curr_password = orig_password & mask;
 		// if updated mask didn't change the password, don't try it again
@@ -1660,18 +1679,17 @@ int CmdT55xxRecoverPW(const char *Cmd) {
 			continue;
 		}
 		found = tryOnePassword(curr_password);
-		if (found == 1)
-			goto done;
-		else if (found == -1)
-			return 0;
+		if (found == -1) return 0;
 		bit++;
-		prev_password=curr_password;
+		prev_password = curr_password;
+		
+		if (IsCancelled()) return 0;
 	}
 
 	// from high bit to low
 	bit = 0;
 	mask = 0xffffffff;
-	while ((found != 1) && (bit < 32)) {
+	while (bit < 32) {
 		mask -= ( 1 << bit );
 		curr_password = orig_password & mask;
 		// if updated mask didn't change the password, don't try it again
@@ -1680,14 +1698,14 @@ int CmdT55xxRecoverPW(const char *Cmd) {
 			continue;
 		}
 		found = tryOnePassword(curr_password);
-		if (found == 1)
-			goto done;
-		else if (found == -1)
+		if (found == -1)
 			return 0;
 		bit++;
-		prev_password=curr_password;
+		prev_password = curr_password;
+		
+		if (IsCancelled()) return 0;
 	}
-done:
+
 	PrintAndLog("");
 
 	if (found == 1)