X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/254687260c3f8262de56ec93ff089d06d083483e..refs/pull/450/head:/client/cmdhficlass.c?ds=inline

diff --git a/client/cmdhficlass.c b/client/cmdhficlass.c
index 99070e18..d02eff8d 100644
--- a/client/cmdhficlass.c
+++ b/client/cmdhficlass.c
@@ -23,7 +23,7 @@
 #include "common.h"
 #include "util.h"
 #include "cmdmain.h"
-#include "loclass/des.h"
+#include "polarssl/des.h"
 #include "loclass/cipherutils.h"
 #include "loclass/cipher.h"
 #include "loclass/ikeys.h"
@@ -33,8 +33,6 @@
 #include "usb_cmd.h"
 #include "cmdhfmfu.h"
 
-#define llX PRIx64
-
 static int CmdHelp(const char *Cmd);
 
 #define ICLASS_KEYS_MAX 8
@@ -182,10 +180,10 @@ int CmdHFiClassSim(const char *Cmd) {
 
 int HFiClassReader(const char *Cmd, bool loop, bool verbose) {
 	bool tagFound = false;
-	UsbCommand c = {CMD_READER_ICLASS, {FLAG_ICLASS_READER_CSN|
-					FLAG_ICLASS_READER_CONF|FLAG_ICLASS_READER_AA}};
+	UsbCommand c = {CMD_READER_ICLASS, {FLAG_ICLASS_READER_CSN |
+		    FLAG_ICLASS_READER_CC | FLAG_ICLASS_READER_CONF | FLAG_ICLASS_READER_AA |
+		    FLAG_ICLASS_READER_ONLY_ONCE | FLAG_ICLASS_READER_ONE_TRY } };
 	// loop in client not device - else on windows have a communication error
-	c.arg[0] |= FLAG_ICLASS_READER_ONLY_ONCE | FLAG_ICLASS_READER_ONE_TRY;
 	UsbCommand resp;
 	while(!ukbhit()){
 		SendCommand(&c);
@@ -193,21 +191,34 @@ int HFiClassReader(const char *Cmd, bool loop, bool verbose) {
 			uint8_t readStatus = resp.arg[0] & 0xff;
 			uint8_t *data = resp.d.asBytes;
 
-			if (verbose)
-				PrintAndLog("Readstatus:%02x", readStatus);
-			if( readStatus == 0){
-				//Aborted
+			// no tag found or button pressed
+			if( (readStatus == 0 && !loop) || readStatus == 0xFF) {
+				// abort
 				if (verbose) PrintAndLog("Quitting...");
 				return 0;
 			}
-			if( readStatus & FLAG_ICLASS_READER_CSN){
-				PrintAndLog("CSN: %s",sprint_hex(data,8));
+
+			if( readStatus & FLAG_ICLASS_READER_CSN) {
+				PrintAndLog("   CSN: %s",sprint_hex(data,8));
 				tagFound = true;
 			}
-			if( readStatus & FLAG_ICLASS_READER_CC)  PrintAndLog("CC: %s",sprint_hex(data+16,8));
-			if( readStatus & FLAG_ICLASS_READER_CONF){
+			if( readStatus & FLAG_ICLASS_READER_CC) { 
+				PrintAndLog("    CC: %s",sprint_hex(data+16,8));
+			}
+			if( readStatus & FLAG_ICLASS_READER_CONF) {
 				printIclassDumpInfo(data);
 			}
+			if (readStatus & FLAG_ICLASS_READER_AA) {
+				bool legacy = true;
+				PrintAndLog(" AppIA: %s",sprint_hex(data+8*5,8));
+				for (int i = 0; i<8; i++) {
+					if (data[8*5+i] != 0xFF) {
+						legacy = false;
+					} 
+				}
+				PrintAndLog("      : Possible iClass %s",(legacy) ? "(legacy tag)" : "(NOT legacy tag)");
+			}
+
 			if (tagFound && !loop) return 1;
 		} else {
 			if (verbose) PrintAndLog("Command execute timeout");
@@ -283,8 +294,13 @@ int CmdHFiClassELoad(const char *Cmd) {
 	long fsize = ftell(f);
 	fseek(f, 0, SEEK_SET);
 
-	uint8_t *dump = malloc(fsize);
+	if (fsize < 0) {
+		PrintAndLog("Error, when getting filesize");
+		fclose(f);
+		return 1;
+	}
 
+	uint8_t *dump = malloc(fsize);
 
 	size_t bytes_read = fread(dump, 1, fsize, f);
 	fclose(f);
@@ -368,10 +384,13 @@ int CmdHFiClassDecrypt(const char *Cmd) {
 	//Open the tagdump-file
 	FILE *f;
 	char filename[FILE_PATH_SIZE];
-	if(opt == 'f' && param_getstr(Cmd, 1, filename) > 0)
-	{
+	if(opt == 'f' && param_getstr(Cmd, 1, filename) > 0) {
 		f = fopen(filename, "rb");
-	}else{
+		if ( f == NULL ) {
+			PrintAndLog("Could not find file %s", filename);
+			return 1;
+		}
+	} else {
 		return usage_hf_iclass_decrypt();
 	}
 
@@ -406,7 +425,7 @@ int CmdHFiClassDecrypt(const char *Cmd) {
 	fclose(f);
 
 	saveFile(outfilename,"bin", decrypted, blocknum*8);
-
+	free(decrypted);
 	return 0;
 }
 
@@ -591,7 +610,7 @@ int CmdHFiClassReader_Dump(const char *Cmd) {
 				errors = param_gethex(tempStr, 0, CreditKEY, dataLen);
 			} else if (dataLen == 1) {
 				keyNbr = param_get8(Cmd, cmdp+1);
-				if (keyNbr <= ICLASS_KEYS_MAX) {
+				if (keyNbr < ICLASS_KEYS_MAX) {
 					memcpy(CreditKEY, iClass_Key_Table[keyNbr], 8);
 				} else {
 					PrintAndLog("\nERROR: Credit KeyNbr is invalid\n");
@@ -625,7 +644,7 @@ int CmdHFiClassReader_Dump(const char *Cmd) {
 				errors = param_gethex(tempStr, 0, KEY, dataLen);
 			} else if (dataLen == 1) {
 				keyNbr = param_get8(Cmd, cmdp+1);
-				if (keyNbr <= ICLASS_KEYS_MAX) {
+				if (keyNbr < ICLASS_KEYS_MAX) {
 					memcpy(KEY, iClass_Key_Table[keyNbr], 8);
 				} else {
 					PrintAndLog("\nERROR: Credit KeyNbr is invalid\n");
@@ -771,10 +790,10 @@ int CmdHFiClassReader_Dump(const char *Cmd) {
 	if (have_debit_key) memcpy(tag_data+(3*8),div_key,8);
 	if (have_credit_key) memcpy(tag_data+(4*8),c_div_key,8);
 	// print the dump
-	printf("CSN   |00| %02X %02X %02X %02X %02X %02X %02X %02X |\n",tag_data[0],tag_data[1],tag_data[2]
-		  ,tag_data[3],tag_data[4],tag_data[5],tag_data[6],tag_data[7]);
-	printIclassDumpContents(tag_data, 1, (gotBytes/8)-1, gotBytes-8);
-
+	printf("------+--+-------------------------+\n");
+	printf("CSN   |00| %s|\n",sprint_hex(tag_data, 8));
+	printIclassDumpContents(tag_data, 1, (gotBytes/8), gotBytes);
+	
 	if (filename[0] == 0){
 		snprintf(filename, FILE_PATH_SIZE,"iclass_tagdump-%02x%02x%02x%02x%02x%02x%02x%02x",
 		    tag_data[0],tag_data[1],tag_data[2],tag_data[3],
@@ -884,7 +903,7 @@ int CmdHFiClass_WriteBlock(const char *Cmd) {
 				errors = param_gethex(tempStr, 0, KEY, dataLen);
 			} else if (dataLen == 1) {
 				keyNbr = param_get8(Cmd, cmdp+1);
-				if (keyNbr <= ICLASS_KEYS_MAX) {
+				if (keyNbr < ICLASS_KEYS_MAX) {
 					memcpy(KEY, iClass_Key_Table[keyNbr], 8);
 				} else {
 					PrintAndLog("\nERROR: Credit KeyNbr is invalid\n");
@@ -933,7 +952,7 @@ int usage_hf_iclass_clone(void) {
 }
 
 int CmdHFiClassCloneTag(const char *Cmd) {
-	char filename[FILE_PATH_SIZE];
+	char filename[FILE_PATH_SIZE] = {0};
 	char tempStr[50]={0};
 	uint8_t KEY[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
 	uint8_t keyNbr = 0;
@@ -987,7 +1006,7 @@ int CmdHFiClassCloneTag(const char *Cmd) {
 				errors = param_gethex(tempStr, 0, KEY, dataLen);
 			} else if (dataLen == 1) {
 				keyNbr = param_get8(Cmd, cmdp+1);
-				if (keyNbr <= ICLASS_KEYS_MAX) {
+				if (keyNbr < ICLASS_KEYS_MAX) {
 					memcpy(KEY, iClass_Key_Table[keyNbr], 8);
 				} else {
 					PrintAndLog("\nERROR: Credit KeyNbr is invalid\n");
@@ -1038,6 +1057,7 @@ int CmdHFiClassCloneTag(const char *Cmd) {
 
 	if (startblock<5) {
 		PrintAndLog("You cannot write key blocks this way. yet... make your start block > 4");
+		fclose(f);
 		return 0;
 	}
 	// now read data from the file from block 6 --- 19
@@ -1046,7 +1066,11 @@ int CmdHFiClassCloneTag(const char *Cmd) {
 	// else we have to create a share memory
 	int i;
 	fseek(f,startblock*8,SEEK_SET);
-	fread(tag_data,sizeof(iclass_block_t),endblock - startblock + 1,f);
+	if ( fread(tag_data,sizeof(iclass_block_t),endblock - startblock + 1,f) == 0 ) {
+		PrintAndLog("File reading error.");
+		fclose(f);
+		return 2;
+	}
 
 	uint8_t MAC[4]={0x00,0x00,0x00,0x00};
 	uint8_t div_key[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
@@ -1084,12 +1108,19 @@ int CmdHFiClassCloneTag(const char *Cmd) {
 	return 1;
 }
 
-static int ReadBlock(uint8_t *KEY, uint8_t blockno, uint8_t keyType, bool elite, bool rawkey, bool verbose) {
+static int ReadBlock(uint8_t *KEY, uint8_t blockno, uint8_t keyType, bool elite, bool rawkey, bool verbose, bool auth) {
 	uint8_t MAC[4]={0x00,0x00,0x00,0x00};
 	uint8_t div_key[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
 
-	if (!select_and_auth(KEY, MAC, div_key, (keyType==0x18), elite, rawkey, verbose))
-		return 0;
+	if (auth) {
+		if (!select_and_auth(KEY, MAC, div_key, (keyType==0x18), elite, rawkey, verbose))
+			return 0;
+	} else {
+		uint8_t CSN[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+		uint8_t CCNR[12]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+		if (!select_only(CSN, CCNR, (keyType==0x18), verbose))
+			return 0;
+	}
 
 	UsbCommand resp;
 	UsbCommand w = {CMD_ICLASS_READBLOCK, {blockno}};
@@ -1135,6 +1166,7 @@ int CmdHFiClass_ReadBlock(const char *Cmd) {
 	bool elite = false;
 	bool rawkey = false;
 	bool errors = false;
+	bool auth = false;
 	uint8_t cmdp = 0;
 	while(param_getchar(Cmd, cmdp) != 0x00)
 	{
@@ -1163,12 +1195,13 @@ int CmdHFiClass_ReadBlock(const char *Cmd) {
 			break;
 		case 'k':
 		case 'K':
+			auth = true;
 			dataLen = param_getstr(Cmd, cmdp+1, tempStr);
 			if (dataLen == 16) { 
 				errors = param_gethex(tempStr, 0, KEY, dataLen);
 			} else if (dataLen == 1) {
 				keyNbr = param_get8(Cmd, cmdp+1);
-				if (keyNbr <= ICLASS_KEYS_MAX) {
+				if (keyNbr < ICLASS_KEYS_MAX) {
 					memcpy(KEY, iClass_Key_Table[keyNbr], 8);
 				} else {
 					PrintAndLog("\nERROR: Credit KeyNbr is invalid\n");
@@ -1193,9 +1226,10 @@ int CmdHFiClass_ReadBlock(const char *Cmd) {
 		if(errors) return usage_hf_iclass_readblock();
 	}
 
-	if (cmdp < 4) return usage_hf_iclass_readblock();
-
-	return ReadBlock(KEY, blockno, keyType, elite, rawkey, true);
+	if (cmdp < 2) return usage_hf_iclass_readblock();
+	if (!auth)
+		PrintAndLog("warning: no authentication used with read, only a few specific blocks can be read accurately without authentication.");
+	return ReadBlock(KEY, blockno, keyType, elite, rawkey, true, auth);
 }
 
 int CmdHFiClass_loclass(const char *Cmd) {
@@ -1209,7 +1243,7 @@ int CmdHFiClass_loclass(const char *Cmd) {
 		PrintAndLog("f <filename>  Bruteforce iclass dumpfile");
 		PrintAndLog("                   An iclass dumpfile is assumed to consist of an arbitrary number of");
 		PrintAndLog("                   malicious CSNs, and their protocol responses");
-		PrintAndLog("                   The the binary format of the file is expected to be as follows: ");
+		PrintAndLog("                   The binary format of the file is expected to be as follows: ");
 		PrintAndLog("                   <8 byte CSN><8 byte CC><4 byte NR><4 byte MAC>");
 		PrintAndLog("                   <8 byte CSN><8 byte CC><4 byte NR><4 byte MAC>");
 		PrintAndLog("                   <8 byte CSN><8 byte CC><4 byte NR><4 byte MAC>");
@@ -1244,7 +1278,6 @@ int CmdHFiClass_loclass(const char *Cmd) {
 }
 
 void printIclassDumpContents(uint8_t *iclass_dump, uint8_t startblock, uint8_t endblock, size_t filesize) {
-	uint8_t blockdata[8];
 	uint8_t mem_config;
 	memcpy(&mem_config, iclass_dump + 13,1);
 	uint8_t maxmemcount;
@@ -1259,18 +1292,19 @@ void printIclassDumpContents(uint8_t *iclass_dump, uint8_t startblock, uint8_t e
 		startblock = 6;
 	if ((endblock > maxmemcount) || (endblock == 0))
 		endblock = maxmemcount;
-	if (endblock > filemaxblock)
+
+	// remember endblock need to relate to zero-index arrays.
+	if (endblock > filemaxblock-1)
 		endblock = filemaxblock;
+	
 	int i = startblock;
-	int j;
-	while (i <= endblock){
-		printf("Block |%02X| ",i);
-		memcpy(blockdata,iclass_dump + (i * 8),8);
-		for (j = 0;j < 8;j++)
-			printf("%02X ",blockdata[j]);
-		printf("|\n");
+	printf("------+--+-------------------------+\n");
+	while (i <= endblock) {
+		uint8_t *blk = iclass_dump + (i * 8);
+		printf("Block |%02X| %s|\n", i, sprint_hex(blk, 8) );	
 		i++;
 	}
+	printf("------+--+-------------------------+\n");
 }
 
 int usage_hf_iclass_readtagfile() {
@@ -1305,13 +1339,19 @@ int CmdHFiClassReadTagFile(const char *Cmd) {
 	long fsize = ftell(f);
 	fseek(f, 0, SEEK_SET);
 
-	uint8_t *dump = malloc(fsize);
+	if ( fsize < 0 ) {
+		PrintAndLog("Error, when getting filesize");
+		fclose(f);
+		return 1;
+	}
 
+	uint8_t *dump = malloc(fsize);
 
 	size_t bytes_read = fread(dump, 1, fsize, f);
 	fclose(f);
 	uint8_t *csn = dump;
-	printf("CSN   [00] | %02X %02X %02X %02X %02X %02X %02X %02X |\n",csn[0],csn[1],csn[2],csn[3],csn[4],csn[5],csn[6],csn[7]);
+	printf("------+--+-------------------------+\n");
+	printf("CSN   |00| %s|\n", sprint_hex(csn, 8) );
 	//    printIclassDumpInfo(dump);
 	printIclassDumpContents(dump,startblock,endblock,bytes_read);
 	free(dump);
@@ -1332,7 +1372,7 @@ uint64_t hexarray_to_uint64(uint8_t *key) {
 	for (int i = 0;i < 8;i++)
 		sprintf(&temp[(i *2)],"%02X",key[i]);
 	temp[16] = '\0';
-	if (sscanf(temp,"%016"llX,&uint_key) < 1)
+	if (sscanf(temp,"%016" SCNx64,&uint_key) < 1)
 		return 0;
 	return uint_key;
 }
@@ -1431,7 +1471,7 @@ int CmdHFiClassCalcNewKey(const char *Cmd) {
 				errors = param_gethex(tempStr, 0, NEWKEY, dataLen);
 			} else if (dataLen == 1) {
 				keyNbr = param_get8(Cmd, cmdp+1);
-				if (keyNbr <= ICLASS_KEYS_MAX) {
+				if (keyNbr < ICLASS_KEYS_MAX) {
 					memcpy(NEWKEY, iClass_Key_Table[keyNbr], 8);
 				} else {
 					PrintAndLog("\nERROR: NewKey Nbr is invalid\n");
@@ -1450,7 +1490,7 @@ int CmdHFiClassCalcNewKey(const char *Cmd) {
 				errors = param_gethex(tempStr, 0, OLDKEY, dataLen);
 			} else if (dataLen == 1) {
 				keyNbr = param_get8(Cmd, cmdp+1);
-				if (keyNbr <= ICLASS_KEYS_MAX) {
+				if (keyNbr < ICLASS_KEYS_MAX) {
 					memcpy(OLDKEY, iClass_Key_Table[keyNbr], 8);
 				} else {
 					PrintAndLog("\nERROR: Credit KeyNbr is invalid\n");
@@ -1498,6 +1538,12 @@ static int loadKeys(char *filename) {
 	long fsize = ftell(f);
 	fseek(f, 0, SEEK_SET);
 
+	if ( fsize < 0 ) {
+		PrintAndLog("Error, when getting filesize");
+		fclose(f);
+		return 1;
+	}
+
 	uint8_t *dump = malloc(fsize);
 
 	size_t bytes_read = fread(dump, 1, fsize, f);
@@ -1590,8 +1636,8 @@ int CmdHFiClassManageKeys(const char *Cmd) {
 		case 'n':
 		case 'N':
 			keyNbr = param_get8(Cmd, cmdp+1);
-			if (keyNbr < 0) {
-				PrintAndLog("Wrong block number");
+			if (keyNbr >= ICLASS_KEYS_MAX) {
+				PrintAndLog("Invalid block number");
 				errors = true;
 			}
 			cmdp += 2;
@@ -1666,7 +1712,7 @@ static command_t CommandTable[] =
 	{"loclass",     CmdHFiClass_loclass,        	1,	"[options..] Use loclass to perform bruteforce of reader attack dump"},
 	{"managekeys",  CmdHFiClassManageKeys,      	1,	"[options..] Manage the keys to use with iClass"},
 	{"readblk",     CmdHFiClass_ReadBlock,      	0,	"[options..] Authenticate and Read iClass block"},
-	{"reader",      CmdHFiClassReader,          	0,	"            Read an iClass tag"},
+	{"reader",      CmdHFiClassReader,          	0,	"            Look for iClass tags until a key or the pm3 button is pressed"},
 	{"readtagfile", CmdHFiClassReadTagFile,     	1,	"[options..] Display Content from tagfile"},
 	{"replay",      CmdHFiClassReader_Replay,   	0,	"<mac>       Read an iClass tag via Reply Attack"},
 	{"sim",         CmdHFiClassSim,             	0,	"[options..] Simulate iClass tag"},