X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/208a0166b948d88b276a67dd334f3b1ecca62420..c6e2bfcda1d13453fe6bf1192422f0974a412dbb:/client/cmdhfmf.c?ds=inline

diff --git a/client/cmdhfmf.c b/client/cmdhfmf.c
index eafb2919..597841e1 100644
--- a/client/cmdhfmf.c
+++ b/client/cmdhfmf.c
@@ -1,5 +1,5 @@
 //-----------------------------------------------------------------------------
-// Copyright (C) 2011 Merlok
+// Copyright (C) 2011,2012 Merlok
 //
 // This code is licensed to you under the terms of the GNU GPL, version 2 or,
 // at your option, any later version. See the LICENSE.txt file for the text of
@@ -9,7 +9,6 @@
 //-----------------------------------------------------------------------------
 
 #include "cmdhfmf.h"
-#include "proxmark3.h"
 
 static int CmdHelp(const char *Cmd);
 
@@ -19,7 +18,7 @@ int CmdHF14AMifare(const char *Cmd)
 	uint32_t nt = 0;
 	uint64_t par_list = 0, ks_list = 0, r_key = 0;
 	uint8_t isOK = 0;
-	uint8_t keyBlock[6] = {0,0,0,0,0,0};
+	uint8_t keyBlock[8] = {0};
 
 	if (param_getchar(Cmd, 0) && param_gethex(Cmd, 0, keyBlock, 8)) {
 		PrintAndLog("Nt must include 8 HEX symbols");
@@ -37,7 +36,6 @@ start:
 	// message
 	printf("-------------------------------------------------------------------------\n");
 	printf("Executing command. It may take up to 30 min.\n");
-	printf("Press the key on proxmark3 device to abort proxmark3.\n");
 	printf("Press the key on the proxmark3 device to abort both proxmark3 and client.\n");
 	printf("-------------------------------------------------------------------------\n");
 	
@@ -51,14 +49,14 @@ start:
 			break;
 		}
 		
-		UsbCommand * resp = WaitForResponseTimeout(CMD_ACK, 2000);
-		if (resp != NULL) {
-			isOK  = resp->arg[0] & 0xff;
+		UsbCommand resp;
+		if (WaitForResponseTimeout(CMD_ACK,&resp,2000)) {
+			isOK  = resp.arg[0] & 0xff;
 	
-			uid = (uint32_t)bytes_to_num(resp->d.asBytes +  0, 4);
-			nt =  (uint32_t)bytes_to_num(resp->d.asBytes +  4, 4);
-			par_list = bytes_to_num(resp->d.asBytes +  8, 8);
-			ks_list = bytes_to_num(resp->d.asBytes +  16, 8);
+			uid = (uint32_t)bytes_to_num(resp.d.asBytes +  0, 4);
+			nt =  (uint32_t)bytes_to_num(resp.d.asBytes +  4, 4);
+			par_list = bytes_to_num(resp.d.asBytes +  8, 8);
+			ks_list = bytes_to_num(resp.d.asBytes +  16, 8);
 	
 			printf("\n\n");
 			PrintAndLog("isOk:%02x", isOK);
@@ -72,18 +70,23 @@ start:
 	if (isOK != 1) return 1;
 	
 	// execute original function from util nonce2key
-	if (nonce2key(uid, nt, par_list, ks_list, &r_key)) return 2;
-	printf("------------------------------------------------------------------\n");
-	PrintAndLog("Key found:%012llx \n", r_key);
+	if (nonce2key(uid, nt, par_list, ks_list, &r_key))
+	{
+		isOK = 2;
+		PrintAndLog("Key not found (lfsr_common_prefix list is null). Nt=%08x", nt);	
+	} else {
+		printf("------------------------------------------------------------------\n");
+		PrintAndLog("Key found:%012"llx" \n", r_key);
 
-	num_to_bytes(r_key, 6, keyBlock);
-	isOK = mfCheckKeys(0, 0, 1, keyBlock, &r_key);
+		num_to_bytes(r_key, 6, keyBlock);
+		isOK = mfCheckKeys(0, 0, 1, keyBlock, &r_key);
+	}
 	if (!isOK) 
-		PrintAndLog("Found valid key:%012llx", r_key);
+		PrintAndLog("Found valid key:%012"llx, r_key);
 	else
 	{
-		PrintAndLog("Found invalid key. ( Nt=%08x ,Trying use it to run again...", nt);	
-		c.d.asDwords[0] = nt;
+		if (isOK != 2) PrintAndLog("Found invalid key. ( Nt=%08x ,Trying use it to run again...", nt);	
+		c.arg[0] = nt;
 		goto start;
 	}
 	
@@ -127,11 +130,10 @@ int CmdHF14AMfWrBl(const char *Cmd)
 	memcpy(c.d.asBytes, key, 6);
 	memcpy(c.d.asBytes + 10, bldata, 16);
   SendCommand(&c);
-	UsbCommand * resp = WaitForResponseTimeout(CMD_ACK, 1500);
-
-	if (resp != NULL) {
-		uint8_t                isOK  = resp->arg[0] & 0xff;
 
+	UsbCommand resp;
+	if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
+		uint8_t isOK  = resp.arg[0] & 0xff;
 		PrintAndLog("isOk:%02x", isOK);
 	} else {
 		PrintAndLog("Command execute timeout");
@@ -171,11 +173,11 @@ int CmdHF14AMfRdBl(const char *Cmd)
   UsbCommand c = {CMD_MIFARE_READBL, {blockNo, keyType, 0}};
 	memcpy(c.d.asBytes, key, 6);
   SendCommand(&c);
-	UsbCommand * resp = WaitForResponseTimeout(CMD_ACK, 1500);
 
-	if (resp != NULL) {
-		uint8_t                isOK  = resp->arg[0] & 0xff;
-		uint8_t              * data  = resp->d.asBytes;
+	UsbCommand resp;
+	if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
+		uint8_t                isOK  = resp.arg[0] & 0xff;
+		uint8_t              * data  = resp.d.asBytes;
 
 		if (isOK)
 			PrintAndLog("isOk:%02x data:%s", isOK, sprint_hex(data, 16));
@@ -226,12 +228,12 @@ int CmdHF14AMfRdSc(const char *Cmd)
   UsbCommand c = {CMD_MIFARE_READSC, {sectorNo, keyType, 0}};
 	memcpy(c.d.asBytes, key, 6);
   SendCommand(&c);
-	UsbCommand * resp = WaitForResponseTimeout(CMD_ACK, 1500);
 	PrintAndLog(" ");
 
-	if (resp != NULL) {
-		isOK  = resp->arg[0] & 0xff;
-		data  = resp->d.asBytes;
+	UsbCommand resp;
+	if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
+		isOK  = resp.arg[0] & 0xff;
+		data  = resp.d.asBytes;
 
 		PrintAndLog("isOk:%02x", isOK);
 		if (isOK) 
@@ -242,13 +244,11 @@ int CmdHF14AMfRdSc(const char *Cmd)
 		PrintAndLog("Command1 execute timeout");
 	}
 
-		// response2
-	resp = WaitForResponseTimeout(CMD_ACK, 500);
+  // response2
 	PrintAndLog(" ");
-
-	if (resp != NULL) {
-		isOK  = resp->arg[0] & 0xff;
-		data  = resp->d.asBytes;
+	if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
+		isOK  = resp.arg[0] & 0xff;
+		data  = resp.d.asBytes;
 
 		if (isOK) 
 			for (i = 0; i < 2; i++) {
@@ -272,7 +272,7 @@ int CmdHF14AMfDump(const char *Cmd)
 	FILE *fin;
 	FILE *fout;
 	
-	UsbCommand *resp;
+	UsbCommand resp;
 	
 	if ((fin = fopen("dumpkeys.bin","rb")) == NULL) {
 		PrintAndLog("Could not find file dumpkeys.bin");
@@ -287,10 +287,16 @@ int CmdHF14AMfDump(const char *Cmd)
 	// Read key file
 	
 	for (i=0 ; i<16 ; i++) {
-		fread ( keyA[i], 1, 6, fin );
+		if (fread( keyA[i], 1, 6, fin ) == 0) {
+      PrintAndLog("File reading error.");
+			return 2;
+    }
 	}
 	for (i=0 ; i<16 ; i++) {
-		fread ( keyB[i], 1, 6, fin );
+		if (fread( keyB[i], 1, 6, fin ) == 0) {
+      PrintAndLog("File reading error.");
+			return 2;
+    }
 	}
 	
 	// Read access rights to sectors
@@ -303,11 +309,10 @@ int CmdHF14AMfDump(const char *Cmd)
 		UsbCommand c = {CMD_MIFARE_READBL, {4*i + 3, 0, 0}};
 		memcpy(c.d.asBytes, keyA[i], 6);
 		SendCommand(&c);
-		resp = WaitForResponseTimeout(CMD_ACK, 1500);
 
-		if (resp != NULL) {
-			uint8_t isOK  = resp->arg[0] & 0xff;
-			uint8_t *data  = resp->d.asBytes;
+    if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
+			uint8_t isOK  = resp.arg[0] & 0xff;
+			uint8_t *data  = resp.d.asBytes;
 			if (isOK){
 				rights[i][0] = ((data[7] & 0x10)>>4) | ((data[8] & 0x1)<<1) | ((data[8] & 0x10)>>2);
 				rights[i][1] = ((data[7] & 0x20)>>5) | ((data[8] & 0x2)<<0) | ((data[8] & 0x20)>>3);
@@ -329,20 +334,23 @@ int CmdHF14AMfDump(const char *Cmd)
 	PrintAndLog("|----- Dumping all blocks to file... -----|");
 	PrintAndLog("|-----------------------------------------|");
 	
+  
 	for (i=0 ; i<16 ; i++) {
 		for (j=0 ; j<4 ; j++) {
-			if (j == 3){
+      bool received = false;
+      
+      if (j == 3){
 				UsbCommand c = {CMD_MIFARE_READBL, {i*4 + j, 0, 0}};
 				memcpy(c.d.asBytes, keyA[i], 6);
 				SendCommand(&c);
-				resp = WaitForResponseTimeout(CMD_ACK, 1500);
+        received = WaitForResponseTimeout(CMD_ACK,&resp,1500);
 			}
 			else{
 				if ((rights[i][j] == 6) | (rights[i][j] == 5)) {
 					UsbCommand c = {CMD_MIFARE_READBL, {i*4+j, 1, 0}};
 					memcpy(c.d.asBytes, keyB[i], 6);
 					SendCommand(&c);
-					resp = WaitForResponseTimeout(CMD_ACK, 1500);
+          received = WaitForResponseTimeout(CMD_ACK,&resp,1500);
 				}
 				else if (rights[i][j] == 7) {
 					PrintAndLog("Access rights do not allow reading of sector %d block %d",i,j);
@@ -351,13 +359,13 @@ int CmdHF14AMfDump(const char *Cmd)
 					UsbCommand c = {CMD_MIFARE_READBL, {i*4+j, 0, 0}};
 					memcpy(c.d.asBytes, keyA[i], 6);
 					SendCommand(&c);
-					resp = WaitForResponseTimeout(CMD_ACK, 1500);
+          received = WaitForResponseTimeout(CMD_ACK,&resp,1500);
 				}
 			}
 
-			if (resp != NULL) {
-				uint8_t isOK  = resp->arg[0] & 0xff;
-				uint8_t *data  = resp->d.asBytes;
+			if (received) {
+				uint8_t isOK  = resp.arg[0] & 0xff;
+				uint8_t *data  = resp.d.asBytes;
 				if (j == 3) {
 					data[0]  = (keyA[i][0]);
 					data[1]  = (keyA[i][1]);
@@ -414,10 +422,16 @@ int CmdHF14AMfRestore(const char *Cmd)
 	}
 	
 	for (i=0 ; i<16 ; i++) {
-		fread(keyA[i], 1, 6, fkeys);
+		if (fread(keyA[i], 1, 6, fkeys) == 0) {
+      PrintAndLog("File reading error.");
+			return 2;
+    }
 	}
 	for (i=0 ; i<16 ; i++) {
-		fread(keyB[i], 1, 6, fkeys);
+		if (fread(keyB[i], 1, 6, fkeys) == 0) {
+      PrintAndLog("File reading error.");
+			return 2;
+    }
 	}
 	
 	PrintAndLog("Restoring dumpdata.bin to card");
@@ -427,7 +441,10 @@ int CmdHF14AMfRestore(const char *Cmd)
 			UsbCommand c = {CMD_MIFARE_WRITEBL, {i*4 + j, keyType, 0}};
 			memcpy(c.d.asBytes, key, 6);
 			
-			fread(bldata, 1, 16, fdump);
+			if (fread(bldata, 1, 16, fdump) == 0) {
+        PrintAndLog("File reading error.");
+        return 2;
+      }
 					
 			if (j == 3) {
 				bldata[0]  = (keyA[i][0]);
@@ -458,10 +475,10 @@ int CmdHF14AMfRestore(const char *Cmd)
 			
 			memcpy(c.d.asBytes + 10, bldata, 16);
 			SendCommand(&c);
-			UsbCommand *resp = WaitForResponseTimeout(CMD_ACK, 1500);
 
-			if (resp != NULL) {
-				uint8_t isOK  = resp->arg[0] & 0xff;
+			UsbCommand resp;
+      if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
+				uint8_t isOK  = resp.arg[0] & 0xff;
 				PrintAndLog("isOk:%02x", isOK);
 			} else {
 				PrintAndLog("Command execute timeout");
@@ -571,7 +588,7 @@ int CmdHF14AMfNested(const char *Cmd)
 		if (res)
 			res = mfCheckKeys(trgBlockNo, trgKeyType, 8, &keyBlock[6 * 8], &key64);
 		if (!res) {
-			PrintAndLog("Found valid key:%012llx", key64);
+			PrintAndLog("Found valid key:%012"llx, key64);
 
 			// transfer key to the emulator
 			if (transferToEml) {
@@ -631,7 +648,7 @@ int CmdHF14AMfNested(const char *Cmd)
 					if (res)
 						res = mfCheckKeys(trgBlockNo, trgKeyType, 8, &keyBlock[6 * 8], &key64);
 					if (!res) {
-						PrintAndLog("Found valid key:%012llx", key64);	
+						PrintAndLog("Found valid key:%012"llx, key64);
 						e_sector[trgBlockNo / 4].foundKey[trgKeyType] = 1;
 						e_sector[trgBlockNo / 4].Key[trgKeyType] = key64;
 					}
@@ -644,7 +661,7 @@ int CmdHF14AMfNested(const char *Cmd)
 		PrintAndLog("|sec|key A           |res|key B           |res|");
 		PrintAndLog("|---|----------------|---|----------------|---|");
 		for (i = 0; i < SectorsCnt; i++) {
-			PrintAndLog("|%03d|  %012llx  | %d |  %012llx  | %d |", i, 
+			PrintAndLog("|%03d|  %012"llx"  | %d |  %012"llx"  | %d |", i,
 				e_sector[i].Key[0], e_sector[i].foundKey[0], e_sector[i].Key[1], e_sector[i].foundKey[1]);
 		}
 		PrintAndLog("|---|----------------|---|----------------|---|");
@@ -814,8 +831,11 @@ int CmdHF14AMfChk(const char *Cmd)
 			if ( (f = fopen( filename , "r")) ) {
 				while( !feof(f) ){
 					memset(buf, 0, sizeof(buf));
-					fgets(buf, sizeof(buf), f);
-					
+					if (fgets(buf, sizeof(buf), f) == NULL) {
+            PrintAndLog("File reading error.");
+            return 2;
+          }
+          
 					if (strlen(buf) < 12 || buf[11] == '\n')
 						continue;
 				
@@ -841,7 +861,7 @@ int CmdHF14AMfChk(const char *Cmd)
 					}
 					memset(keyBlock + 6 * keycnt, 0, 6);
 					num_to_bytes(strtoll(buf, NULL, 16), 6, keyBlock + 6*keycnt);
-					PrintAndLog("chk custom key[%d] %012llx", keycnt, bytes_to_num(keyBlock + 6*keycnt, 6));
+					PrintAndLog("chk custom key[%d] %012"llx, keycnt, bytes_to_num(keyBlock + 6*keycnt, 6));
 					keycnt++;
 				}
 			} else {
@@ -871,7 +891,7 @@ int CmdHF14AMfChk(const char *Cmd)
 				res = mfCheckKeys(b, t, size, keyBlock +6*c, &key64);
 				if (res !=1) {
 					if (!res) {
-						PrintAndLog("Found valid key:[%012llx]",key64);
+						PrintAndLog("Found valid key:[%012"llx"]",key64);
 						if (transferToEml) {
 							uint8_t block[16];
 							mfEmlGetMem(block, get_trailer_block(b), 1);
@@ -985,10 +1005,6 @@ int CmdHF14AMfEGet(const char *Cmd)
 	}	
 	
 	blockNo = param_get8(Cmd, 0);
-	if (blockNo >= 32 * 4 + 8 * 16) {
-		PrintAndLog("Block number must be in [0..255] as in MIFARE classic.");
-		return 1;
-	}
 
 	PrintAndLog(" ");
 	if (!mfEmlGetMem(data, blockNo, 3)) {
@@ -1029,10 +1045,6 @@ int CmdHF14AMfESet(const char *Cmd)
 	}	
 	
 	blockNo = param_get8(Cmd, 0);
-	if (blockNo >= 32 * 4 + 8 * 16) {
-		PrintAndLog("Block number must be in [0..255] as in MIFARE classic.");
-		return 1;
-	}
 	
 	if (param_gethex(Cmd, 1, memBlock, 32)) {
 		PrintAndLog("block data must include 32 HEX symbols");
@@ -1083,7 +1095,10 @@ int CmdHF14AMfELoad(const char *Cmd)
 	blockNum = 0;
 	while(!feof(f)){
 		memset(buf, 0, sizeof(buf));
-		fgets(buf, sizeof(buf), f);
+		if (fgets(buf, sizeof(buf), f) == NULL) {
+      PrintAndLog("File reading error.");
+			return 2;
+    }
 
 		if (strlen(buf) < 32){
 			if(strlen(buf) && feof(f))
@@ -1211,7 +1226,7 @@ int CmdHF14AMfEKeyPrn(const char *Cmd)
 		}
 		keyA = bytes_to_num(data, 6);
 		keyB = bytes_to_num(data + 10, 6);
-		PrintAndLog("|%03d|  %012llx  |  %012llx  |", i, keyA, keyB);
+		PrintAndLog("|%03d|  %012"llx"  |  %012"llx"  |", i, keyA, keyB);
 	}
 	PrintAndLog("|---|----------------|----------------|");
 	
@@ -1270,10 +1285,6 @@ int CmdHF14AMfCSetBlk(const char *Cmd)
 	}	
 
 	blockNo = param_get8(Cmd, 0);
-	if (blockNo >= 32 * 4 + 8 * 16) {
-		PrintAndLog("Block number must be in [0..255] as in MIFARE classic.");
-		return 1;
-	}
 
 	if (param_gethex(Cmd, 1, memBlock, 32)) {
 		PrintAndLog("block data must include 32 HEX symbols");
@@ -1354,7 +1365,10 @@ int CmdHF14AMfCLoad(const char *Cmd)
 		flags = CSETBLOCK_INIT_FIELD + CSETBLOCK_WUPC;
 		while(!feof(f)){
 			memset(buf, 0, sizeof(buf));
-			fgets(buf, sizeof(buf), f);
+			if (fgets(buf, sizeof(buf), f) == NULL) {
+        PrintAndLog("File reading error.");
+        return 2;
+      }
 
 			if (strlen(buf) < 32){
 				if(strlen(buf) && feof(f))
@@ -1387,20 +1401,287 @@ int CmdHF14AMfCLoad(const char *Cmd)
 	}
 }
 
+int CmdHF14AMfCGetBlk(const char *Cmd) {
+	uint8_t memBlock[16];
+	uint8_t blockNo = 0;
+	int res;
+	memset(memBlock, 0x00, sizeof(memBlock));
+
+	if (strlen(Cmd) < 1 || param_getchar(Cmd, 0) == 'h') {
+		PrintAndLog("Usage:  hf mf cgetblk <block number>");
+		PrintAndLog("sample:  hf mf cgetblk 1");
+		PrintAndLog("Get block data from magic Chinese card (only works with!!!)\n");
+		return 0;
+	}	
+
+	blockNo = param_get8(Cmd, 0);
+
+	PrintAndLog("--block number:%02x ", blockNo);
+
+	res = mfCGetBlock(blockNo, memBlock, CSETBLOCK_SINGLE_OPER);
+	if (res) {
+			PrintAndLog("Can't read block. error=%d", res);
+			return 1;
+		}
+	
+	PrintAndLog("block data:%s", sprint_hex(memBlock, 16));
+	return 0;
+}
+
+int CmdHF14AMfCGetSc(const char *Cmd) {
+	uint8_t memBlock[16];
+	uint8_t sectorNo = 0;
+	int i, res, flags;
+	memset(memBlock, 0x00, sizeof(memBlock));
+
+	if (strlen(Cmd) < 1 || param_getchar(Cmd, 0) == 'h') {
+		PrintAndLog("Usage:  hf mf cgetsc <sector number>");
+		PrintAndLog("sample:  hf mf cgetsc 0");
+		PrintAndLog("Get sector data from magic Chinese card (only works with!!!)\n");
+		return 0;
+	}	
+
+	sectorNo = param_get8(Cmd, 0);
+	if (sectorNo > 15) {
+		PrintAndLog("Sector number must be in [0..15] as in MIFARE classic.");
+		return 1;
+	}
+
+	PrintAndLog("--sector number:%02x ", sectorNo);
+
+	flags = CSETBLOCK_INIT_FIELD + CSETBLOCK_WUPC;
+	for (i = 0; i < 4; i++) {
+		if (i == 1) flags = 0;
+		if (i == 3) flags = CSETBLOCK_HALT + CSETBLOCK_RESET_FIELD;
+
+		res = mfCGetBlock(sectorNo * 4 + i, memBlock, flags);
+		if (res) {
+			PrintAndLog("Can't read block. %02x error=%d", sectorNo * 4 + i, res);
+			return 1;
+		}
+	
+		PrintAndLog("block %02x data:%s", sectorNo * 4 + i, sprint_hex(memBlock, 16));
+	}
+	return 0;
+}
+
+int CmdHF14AMfCSave(const char *Cmd) {
+
+	FILE * f;
+	char filename[20];
+	char * fnameptr = filename;
+	uint8_t fillFromEmulator = 0;
+	uint8_t buf[64];
+	int i, j, len, flags;
+	
+	memset(filename, 0, sizeof(filename));
+	memset(buf, 0, sizeof(buf));
+
+	if (param_getchar(Cmd, 0) == 'h') {
+		PrintAndLog("It saves `magic Chinese` card dump into the file `filename.eml` or `cardID.eml`");
+		PrintAndLog("or into emulator memory (option `e`)");
+		PrintAndLog("Usage:  hf mf esave [file name w/o `.eml`][e]");
+		PrintAndLog(" sample: hf mf esave ");
+		PrintAndLog("         hf mf esave filename");
+		PrintAndLog("         hf mf esave e \n");
+		return 0;
+	}	
+
+	char ctmp = param_getchar(Cmd, 0);
+	if (ctmp == 'e' || ctmp == 'E') fillFromEmulator = 1;
+
+	if (fillFromEmulator) {
+		// put into emulator
+		flags = CSETBLOCK_INIT_FIELD + CSETBLOCK_WUPC;
+		for (i = 0; i < 16 * 4; i++) {
+			if (i == 1) flags = 0;
+			if (i == 16 * 4 - 1) flags = CSETBLOCK_HALT + CSETBLOCK_RESET_FIELD;
+		
+			if (mfCGetBlock(i, buf, flags)) {
+				PrintAndLog("Cant get block: %d", i);
+				break;
+			}
+			
+			if (mfEmlSetMem(buf, i, 1)) {
+				PrintAndLog("Cant set emul block: %d", i);
+				return 3;
+			}
+		}
+		return 0;
+	} else {
+		len = strlen(Cmd);
+		if (len > 14) len = 14;
+	
+		if (len < 1) {
+			// get filename
+			if (mfCGetBlock(0, buf, CSETBLOCK_SINGLE_OPER)) {
+				PrintAndLog("Cant get block: %d", 0);
+				return 1;
+			}
+			for (j = 0; j < 7; j++, fnameptr += 2)
+				sprintf(fnameptr, "%02x", buf[j]); 
+		} else {
+			memcpy(filename, Cmd, len);
+			fnameptr += len;
+		}
+
+		sprintf(fnameptr, ".eml"); 
+	
+		// open file
+		f = fopen(filename, "w+");
+
+		// put hex
+		flags = CSETBLOCK_INIT_FIELD + CSETBLOCK_WUPC;
+		for (i = 0; i < 16 * 4; i++) {
+			if (i == 1) flags = 0;
+			if (i == 16 * 4 - 1) flags = CSETBLOCK_HALT + CSETBLOCK_RESET_FIELD;
+		
+			if (mfCGetBlock(i, buf, flags)) {
+				PrintAndLog("Cant get block: %d", i);
+				break;
+			}
+			for (j = 0; j < 16; j++)
+				fprintf(f, "%02x", buf[j]); 
+			fprintf(f,"\n");
+		}
+		fclose(f);
+	
+		PrintAndLog("Saved to file: %s", filename);
+	
+		return 0;
+	}
+}
+
+int CmdHF14AMfSniff(const char *Cmd){
+	// params
+	bool wantLogToFile = 0;
+	bool wantDecrypt = 0;
+	//bool wantSaveToEml = 0; TODO
+	bool wantSaveToEmlFile = 0;
+
+	//var 
+	int res = 0;
+	int len = 0;
+	int blockLen = 0;
+	int num = 0;
+	int pckNum = 0;
+	uint8_t uid[8];
+	uint8_t atqa[2];
+	uint8_t sak;
+	bool isTag;
+	uint32_t parity;
+	uint8_t buf[3000];
+	uint8_t * bufPtr = buf;
+	memset(buf, 0x00, 3000);
+	
+	if (param_getchar(Cmd, 0) == 'h') {
+		PrintAndLog("It continuously get data from the field and saves it to: log, emulator, emulator file.");
+		PrintAndLog("You can specify:");
+		PrintAndLog("    l - save encrypted sequence to logfile `uid.log`");
+		PrintAndLog("    d - decrypt sequence and put it to log file `uid.log`");
+		PrintAndLog(" n/a   e - decrypt sequence, collect read and write commands and save the result of the sequence to emulator memory");
+		PrintAndLog("    r - decrypt sequence, collect read and write commands and save the result of the sequence to emulator dump file `uid.eml`");
+		PrintAndLog("Usage:  hf mf sniff [l][d][e][r]");
+		PrintAndLog("  sample: hf mf sniff l d e");
+		return 0;
+	}	
+	
+	for (int i = 0; i < 4; i++) {
+		char ctmp = param_getchar(Cmd, i);
+		if (ctmp == 'l' || ctmp == 'L') wantLogToFile = true;
+		if (ctmp == 'd' || ctmp == 'D') wantDecrypt = true;
+		//if (ctmp == 'e' || ctmp == 'E') wantSaveToEml = true; TODO
+		if (ctmp == 'f' || ctmp == 'F') wantSaveToEmlFile = true;
+	}
+	
+	printf("-------------------------------------------------------------------------\n");
+	printf("Executing command. \n");
+	printf("Press the key on the proxmark3 device to abort both proxmark3 and client.\n");
+	printf("Press the key on pc keyboard to abort the client.\n");
+	printf("-------------------------------------------------------------------------\n");
+
+  UsbCommand c = {CMD_MIFARE_SNIFFER, {0, 0, 0}};
+  SendCommand(&c);
+
+	// wait cycle
+	while (true) {
+		printf(".");
+		fflush(stdout);
+		if (ukbhit()) {
+			getchar();
+			printf("\naborted via keyboard!\n");
+			break;
+		}
+		
+    UsbCommand resp;
+    if (WaitForResponseTimeout(CMD_ACK,&resp,2000)) {
+			res = resp.arg[0] & 0xff;
+			len = resp.arg[1];
+			num = resp.arg[2];
+			
+			if (res == 0) return 0;
+			if (res == 1) {
+				if (num ==0) {
+					bufPtr = buf;
+					memset(buf, 0x00, 3000);
+				}
+				memcpy(bufPtr, resp.d.asBytes, len);
+				bufPtr += len;
+				pckNum++;
+			}
+			if (res == 2) {
+				blockLen = bufPtr - buf;
+				bufPtr = buf;
+				printf(">\n");
+				PrintAndLog("received trace len: %d packages: %d", blockLen, pckNum);
+				num = 0;
+				while (bufPtr - buf + 9 < blockLen) {
+				  isTag = bufPtr[3] & 0x80 ? true:false;
+					bufPtr += 4;
+					parity = *((uint32_t *)(bufPtr));
+					bufPtr += 4;
+					len = bufPtr[0];
+					bufPtr++;
+					if ((len == 14) && (bufPtr[0] = 0xff) && (bufPtr[1] = 0xff)) {
+						memcpy(uid, bufPtr + 2, 7);
+						memcpy(atqa, bufPtr + 2 + 7, 2);
+						sak = bufPtr[11];
+						
+						PrintAndLog("tag select uid:%s atqa:%02x %02x sak:0x%02x", sprint_hex(uid, 7), atqa[0], atqa[1], sak);
+						if (wantLogToFile) {
+							FillFileNameByUID(logHexFileName, uid, ".log", 7);
+							AddLogCurrentDT(logHexFileName);
+						}						
+						if (wantDecrypt) mfTraceInit(uid, atqa, sak, wantSaveToEmlFile);
+					} else {
+						PrintAndLog("%s(%d):%s", isTag ? "TAG":"RDR", num, sprint_hex(bufPtr, len));
+						if (wantLogToFile) AddLogHex(logHexFileName, isTag ? "TAG: ":"RDR: ", bufPtr, len);
+						if (wantDecrypt) mfTraceDecode(bufPtr, len, parity, wantSaveToEmlFile);
+					}
+					bufPtr += len;
+					num++;
+				}
+			}
+		} // resp not NILL
+	} // while (true)
+  return 0;
+}
+
 static command_t CommandTable[] =
 {
-  {"help",		CmdHelp,				1, "This help"},
-  {"dbg",		CmdHF14AMfDbg,			0, "Set default debug mode"},
+  {"help",		CmdHelp,						1, "This help"},
+  {"dbg",			CmdHF14AMfDbg,			0, "Set default debug mode"},
   {"rdbl",		CmdHF14AMfRdBl,			0, "Read MIFARE classic block"},
   {"rdsc",		CmdHF14AMfRdSc,			0, "Read MIFARE classic sector"},
   {"dump",		CmdHF14AMfDump,			0, "Dump MIFARE classic tag to binary file"},
-  {"restore",	CmdHF14AMfRestore,		0, "Restore MIFARE classic binary file to BLANK tag"},
+  {"restore",	CmdHF14AMfRestore,	0, "Restore MIFARE classic binary file to BLANK tag"},
   {"wrbl",		CmdHF14AMfWrBl,			0, "Write MIFARE classic block"},
-  {"chk",		CmdHF14AMfChk,			0, "Test block keys"},
+  {"chk",			CmdHF14AMfChk,			0, "Test block keys"},
   {"mifare",	CmdHF14AMifare,			0, "Read parity error messages. param - <used card nonce>"},
   {"nested",	CmdHF14AMfNested,		0, "Test nested authentication"},
-  {"sim",		CmdHF14AMf1kSim,		0, "Simulate MIFARE card"},
-  {"eclr",  	CmdHF14AMfEClear,		0, "Clear simulator memory block"},
+  {"sniff",		CmdHF14AMfSniff,		0, "Sniff card-reader communication"},
+  {"sim",			CmdHF14AMf1kSim,		0, "Simulate MIFARE card"},
+  {"eclr",		CmdHF14AMfEClear,		0, "Clear simulator memory block"},
   {"eget",		CmdHF14AMfEGet,			0, "Get simulator memory block"},
   {"eset",		CmdHF14AMfESet,			0, "Set simulator memory block"},
   {"eload",		CmdHF14AMfELoad,		0, "Load from file emul dump"},
@@ -1409,14 +1690,17 @@ static command_t CommandTable[] =
   {"ekeyprn",	CmdHF14AMfEKeyPrn,	0, "Print keys from simulator memory"},
   {"csetuid",	CmdHF14AMfCSetUID,	0, "Set UID for magic Chinese card"},
   {"csetblk",	CmdHF14AMfCSetBlk,	0, "Write block into magic Chinese card"},
+  {"cgetblk",	CmdHF14AMfCGetBlk,	0, "Read block from magic Chinese card"},
+  {"cgetsc",	CmdHF14AMfCGetSc,		0, "Read sector from magic Chinese card"},
   {"cload",		CmdHF14AMfCLoad,		0, "Load dump into magic Chinese card"},
+  {"csave",		CmdHF14AMfCSave,		0, "Save dump from magic Chinese card into file or emulator"},
   {NULL, NULL, 0, NULL}
 };
 
 int CmdHFMF(const char *Cmd)
 {
 	// flush
-	while (WaitForResponseTimeout(CMD_ACK, 500) != NULL) ;
+	WaitForResponseTimeout(CMD_ACK,NULL,100);
 
   CmdsParse(CommandTable, Cmd);
   return 0;