X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/4d2e4eea58a6a2411855f14590dc3582150baaea..bcf61bd34ab2747580aabf648093e5854b7283ed:/armsrc/mifarecmd.c

diff --git a/armsrc/mifarecmd.c b/armsrc/mifarecmd.c
index fb71b171..c56f2337 100644
--- a/armsrc/mifarecmd.c
+++ b/armsrc/mifarecmd.c
@@ -19,6 +19,12 @@
 
 #include "crc.h"
 
+// the block number for the ISO14443-4 PCB
+uint8_t pcb_blocknum = 0;
+// Deselect card by sending a s-block. the crc is precalced for speed
+static  uint8_t deselect_cmd[] = {0xc2,0xe0,0xb4};
+
+
 //-----------------------------------------------------------------------------
 // Select, Authenticate, Read a MIFARE tag. 
 // read block
@@ -86,7 +92,6 @@ void MifareReadBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
 	LEDsoff();
 }
 
-
 void MifareUC_Auth(uint8_t arg0, uint8_t *keybytes){
 
 	bool turnOffField = (arg0 == 1);
@@ -101,23 +106,24 @@ void MifareUC_Auth(uint8_t arg0, uint8_t *keybytes){
 		return;
 	};
 	
-	if(mifare_ultra_auth(keybytes) == 1){
+	if(!mifare_ultra_auth(keybytes)){
 		if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Authentication failed");
 		OnError(1);
 		return;
 	}
-    
-	cmd_send(CMD_ACK,1,0,0,0,0);
 
 	if (turnOffField) {
 		FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 		LEDsoff();
+	}
+	cmd_send(CMD_ACK,1,0,0,0,0);
 	}	
+	cmd_send(CMD_ACK,1,0,0,0,0);
 }
 
 // Arg0 = BlockNo,
 // Arg1 = UsePwd bool
-// datain = PWD bytes,  
+// datain = PWD bytes,
 void MifareUReadBlock(uint8_t arg0, uint8_t arg1, uint8_t *datain)
 {
 	uint8_t blockNo = arg0;
@@ -125,57 +131,57 @@ void MifareUReadBlock(uint8_t arg0, uint8_t arg1, uint8_t *datain)
 	bool useKey = (arg1 == 1); //UL_C
 	bool usePwd = (arg1 == 2); //UL_EV1/NTAG
 
-	LEDsoff();	
-	LED_A_ON();    
+	LEDsoff();
+	LED_A_ON();
 	clear_trace();
 	iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
-    
+
 	int len = iso14443a_select_card(NULL, NULL, NULL);
 	if(!len) {
 		if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Can't select card (RC:%02X)",len);
 		OnError(1);
 		return;
 	}
-       
+
 	// UL-C authentication
 	if ( useKey ) {
-		uint8_t key[16] = {0x00};	
+		uint8_t key[16] = {0x00};
 		memcpy(key, datain, sizeof(key) );
 
-		if ( mifare_ultra_auth(key)  == 1 )	{
+		if ( !mifare_ultra_auth(key) ) {
 			OnError(1);
-			return;			
+			return;
 		}
 	}
-	
+
 	// UL-EV1 / NTAG authentication
-	if (usePwd) { 
+	if ( usePwd ) {
 		uint8_t pwd[4] = {0x00};
 		memcpy(pwd, datain, 4);
 		uint8_t pack[4] = {0,0,0,0};
-
-		if (mifare_ul_ev1_auth(pwd, pack) == 1){
+		if (!mifare_ul_ev1_auth(pwd, pack)) {
 			OnError(1);
-			return;			
+			return;
 		}
-	}
-		
+	}	
+
 	if( mifare_ultra_readblock(blockNo, dataout) ) {
 		if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Read block error");
 		OnError(2);
 		return;
 	}
-        
+
 	if( mifare_ultra_halt() ) {
 		if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Halt error");
 		OnError(3);
 		return;
 	}
-		
+
     cmd_send(CMD_ACK,1,0,0,dataout,16);
 	FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 	LEDsoff();
 }
+
 //-----------------------------------------------------------------------------
 // Select, Authenticate, Read a MIFARE tag. 
 // read sector (data = 4 x 16 bytes = 64 bytes, or 16 x 16 bytes = 256 bytes)
@@ -212,6 +218,7 @@ void MifareReadSector(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
 		if (MF_DBGLEVEL >= 1)	Dbprintf("Can't select card");
 	}
 	
+	
 	if(isOK && mifare_classic_auth(pcs, cuid, FirstBlockOfSector(sectorNo), keyType, ui64Key, AUTH_FIRST)) {
 		isOK = 0;
 		if (MF_DBGLEVEL >= 1)	Dbprintf("Auth error");
@@ -249,17 +256,26 @@ void MifareReadSector(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
 // datain = KEY bytes
 void MifareUReadCard(uint8_t arg0, uint16_t arg1, uint8_t arg2, uint8_t *datain)
 {
+	// free eventually allocated BigBuf memory
+	BigBuf_free();
+	// clear trace
+	clear_trace();
+
 	// params
 	uint8_t blockNo = arg0;
 	uint16_t blocks = arg1;
 	bool useKey = (arg2 == 1); //UL_C
 	bool usePwd = (arg2 == 2); //UL_EV1/NTAG
-	int countblocks = 0;
-	uint8_t dataout[176] = {0x00};
+	uint32_t countblocks = 0;
+	uint8_t *dataout = BigBuf_malloc(CARD_MEMORY_SIZE);
+	if (dataout == NULL){
+		Dbprintf("out of memory");
+		OnError(1);
+		return;
+	}
 
 	LEDsoff();
-	LED_A_ON(); 
-	clear_trace();
+	LED_A_ON();
 	iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 
 	int len = iso14443a_select_card(NULL, NULL, NULL);
@@ -268,13 +284,42 @@ void MifareUReadCard(uint8_t arg0, uint16_t arg1, uint8_t arg2, uint8_t *datain)
 		OnError(1);
 		return;
 	}
+
+	// UL-C authentication
+	if ( useKey ) {
+		uint8_t key[16] = {0x00};
+		memcpy(key, datain, sizeof(key) );
+
+		if ( !mifare_ultra_auth(key) ) {
+			OnError(1);
+			return;
+		}
+	}
+
+	// UL-EV1 / NTAG authentication
+	if (usePwd) {
+		uint8_t pwd[4] = {0x00};
+		memcpy(pwd, datain, sizeof(pwd));
+		uint8_t pack[4] = {0,0,0,0};
+
+		if (!mifare_ul_ev1_auth(pwd, pack)){
+			OnError(1);
+			return;			
+		}
+	}
+
+	for (int i = 0; i < blocks; i++){
+		if ((i*4) + 4 > CARD_MEMORY_SIZE) {
+			Dbprintf("Data exceeds buffer!!");
+			break;
+		}
 	
 	 // UL-C authentication
 	if ( useKey ) {
 		uint8_t key[16] = {0x00};	
 		memcpy(key, datain, sizeof(key) );
 
-		if ( mifare_ultra_auth(key)  == 1 )	{
+		if ( !mifare_ultra_auth(key) ) {
 			OnError(1);
 			return;			
 		}
@@ -286,36 +331,46 @@ void MifareUReadCard(uint8_t arg0, uint16_t arg1, uint8_t arg2, uint8_t *datain)
 		memcpy(pwd, datain, sizeof(pwd));
 		uint8_t pack[4] = {0,0,0,0};
 
-		if (mifare_ul_ev1_auth(pwd, pack) == 1){
+		if (!mifare_ul_ev1_auth(pwd, pack)){
 			OnError(1);
 			return;			
 		}
 	}
 	
 	for (int i = 0; i < blocks; i++){
-		len = mifare_ultra_readblock(blockNo * 4 + i, dataout + 4 * i);
+		if ((i*4) + 4 > CARD_MEMORY_SIZE) {
+			Dbprintf("Data exceeds buffer!!");
+			break;
+		}
+	
+		len = mifare_ultra_readblock(blockNo + i, dataout + 4 * i);
 		
 		if (len) {
 			if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Read block %d error",i);
-			OnError(2);
+			// if no blocks read - error out
+			if (i==0){
+				OnError(2);
 			return;
+			} else {
+				//stop at last successful read block and return what we got
+				break;
+			}
 		} else {
 			countblocks++;
 		}
 	}
-		
+
 	len = mifare_ultra_halt();
 	if (len) {
 		if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Halt error");
 		OnError(3);
 		return;
 	}
-	
-	if (MF_DBGLEVEL >= MF_DBG_EXTENDED) Dbprintf("Blocks read %d", countblocks);
 
-	len = blocks*4;
+	if (MF_DBGLEVEL >= MF_DBG_EXTENDED) Dbprintf("Blocks read %d", countblocks);
 
-	cmd_send(CMD_ACK, 1, len, 0, dataout, len);	
+	countblocks *= 4;
+	cmd_send(CMD_ACK, 1, countblocks, countblocks, 0, 0);
 	FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 	LEDsoff();
 }
@@ -392,18 +447,17 @@ void MifareWriteBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
 	LEDsoff();
 }
 
-
 void MifareUWriteBlock(uint8_t arg0, uint8_t *datain)
 {
-    uint8_t blockNo = arg0;
+	uint8_t blockNo = arg0;
 	byte_t blockdata[16] = {0x00};
 
-    memcpy(blockdata, datain, 16);
-        
+	memcpy(blockdata, datain, 16);
+
 	uint8_t uid[10] = {0x00};
 
 	LED_A_ON(); LED_B_OFF(); LED_C_OFF();
-		
+
 	clear_trace();
 	iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 
@@ -423,7 +477,7 @@ void MifareUWriteBlock(uint8_t arg0, uint8_t *datain)
 		OnError(0);
 		return;
 	};
-		
+
 	if (MF_DBGLEVEL >= 2)   DbpString("WRITE BLOCK FINISHED");
 
 	cmd_send(CMD_ACK,1,0,0,0,0);
@@ -431,12 +485,19 @@ void MifareUWriteBlock(uint8_t arg0, uint8_t *datain)
 	LEDsoff();
 }
 
-void MifareUWriteBlock_Special(uint8_t arg0, uint8_t *datain)
+// Arg0   : Block to write to.
+// Arg1   : 0 = use no authentication.
+//          1 = use 0x1A authentication.
+//          2 = use 0x1B authentication.
+// datain : 4 first bytes is data to be written.
+//        : 4/16 next bytes is authentication key.
+void MifareUWriteBlock_Special(uint8_t arg0, uint8_t arg1, uint8_t *datain)
 {
 	uint8_t blockNo = arg0;
+	bool useKey = (arg1 == 1); //UL_C
+	bool usePwd = (arg1 == 2); //UL_EV1/NTAG
 	byte_t blockdata[4] = {0x00};
-	uint8_t uid[10] = {0x00};
-	
+
 	memcpy(blockdata, datain,4);
 	
 	LEDsoff();
@@ -444,12 +505,34 @@ void MifareUWriteBlock_Special(uint8_t arg0, uint8_t *datain)
 	clear_trace();
 	iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 
-	if(!iso14443a_select_card(uid, NULL, NULL)) {
+	if(!iso14443a_select_card(NULL, NULL, NULL)) {
 		if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");
 		OnError(0);
 		return;
 	};
 
+	// UL-C authentication
+	if ( useKey ) {
+		uint8_t key[16] = {0x00};	
+		memcpy(key, datain+4, sizeof(key) );
+
+		if ( !mifare_ultra_auth(key) ) {
+			OnError(1);
+			return;			
+		}
+	}
+	
+	// UL-EV1 / NTAG authentication
+	if (usePwd) { 
+		uint8_t pwd[4] = {0x00};
+		memcpy(pwd, datain+4, 4);
+		uint8_t pack[4] = {0,0,0,0};
+		if (!mifare_ul_ev1_auth(pwd, pack)) {
+			OnError(1);
+			return;			
+		}
+	}
+	
 	if(mifare_ultra_special_writeblock(blockNo, blockdata)) {
 		if (MF_DBGLEVEL >= 1) Dbprintf("Write block error");
 		OnError(0);
@@ -1291,3 +1374,18 @@ void Mifare_DES_Auth2(uint32_t arg0, uint8_t *datain){
 	FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 	LEDsoff();
 }
+
+void OnSuccess(){
+	pcb_blocknum = 0;
+	ReaderTransmit(deselect_cmd, 3 , NULL);
+	FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
+	LEDsoff();
+}
+
+void OnError(uint8_t reason){
+	pcb_blocknum = 0;
+	ReaderTransmit(deselect_cmd, 3 , NULL);
+	FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
+	cmd_send(CMD_ACK,0,reason,0,0,0);
+	LEDsoff();
+}