X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/cee5a30d53c7aff4c4830eae53eaf58414ecf806..dbac9ffb40d8a1a390918613f122bb0a0e60e904:/client/cmdhf.c

diff --git a/client/cmdhf.c b/client/cmdhf.c
index 15b9e984..82313ae0 100644
--- a/client/cmdhf.c
+++ b/client/cmdhf.c
@@ -1,5 +1,6 @@
 //-----------------------------------------------------------------------------
 // Copyright (C) 2010 iZsh <izsh at fail0verflow.com>
+// Merlok - 2017
 //
 // 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
@@ -8,17 +9,30 @@
 // High frequency commands
 //-----------------------------------------------------------------------------
 
+#include <stdlib.h>
 #include <stdio.h>
-#include "proxusb.h"
-#include "graph.h"
+#include <string.h>
+#include "proxmark3.h"
+#include "util.h"
+#include "data.h"
 #include "ui.h"
+#include "iso14443crc.h"
+#include "parity.h"
+#include "cmdmain.h"
 #include "cmdparser.h"
 #include "cmdhf.h"
 #include "cmdhf14a.h"
 #include "cmdhf14b.h"
 #include "cmdhf15.h"
+#include "cmdhfepa.h"
 #include "cmdhflegic.h"
 #include "cmdhficlass.h"
+#include "cmdhfmf.h"
+#include "cmdhfmfu.h"
+#include "cmdhftopaz.h"
+#include "protocols.h"
+#include "emv/cmdemv.h"
+#include "cmdhflist.h"
 
 static int CmdHelp(const char *Cmd);
 
@@ -29,16 +43,560 @@ int CmdHFTune(const char *Cmd)
   return 0;
 }
 
+/**
+ * @brief iso14443B_CRC_check Checks CRC in command or response
+ * @param isResponse
+ * @param data
+ * @param len
+ * @return  0 : CRC-command, CRC not ok
+ *          1 : CRC-command, CRC ok
+ *          2 : Not crc-command
+ */
+
+uint8_t iso14443B_CRC_check(bool isResponse, uint8_t* data, uint8_t len)
+{
+	uint8_t b1,b2;
+
+	if(len <= 2) return 2;
+
+	ComputeCrc14443(CRC_14443_B, data, len-2, &b1, &b2);
+	if(b1 != data[len-2] || b2 != data[len-1]) {
+		return 0;
+	} else {
+		return 1;
+	}
+}
+
+/**
+ * @brief iclass_CRC_Ok Checks CRC in command or response
+ * @param isResponse
+ * @param data
+ * @param len
+ * @return  0 : CRC-command, CRC not ok
+ *	        1 : CRC-command, CRC ok
+ *          2 : Not crc-command
+ */
+uint8_t iclass_CRC_check(bool isResponse, uint8_t* data, uint8_t len)
+{
+	if(len < 4) return 2;//CRC commands (and responses) are all at least 4 bytes
+
+	uint8_t b1, b2;
+
+	if(!isResponse)//Commands to tag
+	{
+		/**
+		  These commands should have CRC. Total length leftmost
+		  4	READ
+		  4 READ4
+		  12 UPDATE - unsecured, ends with CRC16
+		  14 UPDATE - secured, ends with signature instead
+		  4 PAGESEL
+		  **/
+		if(len == 4 || len == 12)//Covers three of them
+		{
+			//Don't include the command byte
+			ComputeCrc14443(CRC_ICLASS, (data+1), len-3, &b1, &b2);
+			return b1 == data[len -2] && b2 == data[len-1];
+		}
+		return 2;
+	}else{
+		/**
+		These tag responses should have CRC. Total length leftmost
+
+		10  READ		data[8] crc[2]
+		34  READ4		data[32]crc[2]
+		10  UPDATE	data[8] crc[2]
+		10 SELECT	csn[8] crc[2]
+		10  IDENTIFY  asnb[8] crc[2]
+		10  PAGESEL   block1[8] crc[2]
+		10  DETECT    csn[8] crc[2]
+
+		These should not
+
+		4  CHECK		chip_response[4]
+		8  READCHECK data[8]
+		1  ACTALL    sof[1]
+		1  ACT	     sof[1]
+
+		In conclusion, without looking at the command; any response
+		of length 10 or 34 should have CRC
+		  **/
+		if(len != 10 && len != 34) return true;
+
+		ComputeCrc14443(CRC_ICLASS, data, len-2, &b1, &b2);
+		return b1 == data[len -2] && b2 == data[len-1];
+	}
+}
+
+
+bool is_last_record(uint16_t tracepos, uint8_t *trace, uint16_t traceLen)
+{
+	return(tracepos + sizeof(uint32_t) + sizeof(uint16_t) + sizeof(uint16_t) >= traceLen);
+}
+
+
+bool next_record_is_response(uint16_t tracepos, uint8_t *trace)
+{
+	uint16_t next_records_datalen = *((uint16_t *)(trace + tracepos + sizeof(uint32_t) + sizeof(uint16_t)));
+	
+	return(next_records_datalen & 0x8000);
+}
+
+
+bool merge_topaz_reader_frames(uint32_t timestamp, uint32_t *duration, uint16_t *tracepos, uint16_t traceLen, uint8_t *trace, uint8_t *frame, uint8_t *topaz_reader_command, uint16_t *data_len)
+{
+
+#define MAX_TOPAZ_READER_CMD_LEN	16
+
+	uint32_t last_timestamp = timestamp + *duration;
+
+	if ((*data_len != 1) || (frame[0] == TOPAZ_WUPA) || (frame[0] == TOPAZ_REQA)) return false;
+
+	memcpy(topaz_reader_command, frame, *data_len);
+
+	while (!is_last_record(*tracepos, trace, traceLen) && !next_record_is_response(*tracepos, trace)) {
+		uint32_t next_timestamp = *((uint32_t *)(trace + *tracepos));
+		*tracepos += sizeof(uint32_t);
+		uint16_t next_duration = *((uint16_t *)(trace + *tracepos));
+		*tracepos += sizeof(uint16_t);
+		uint16_t next_data_len = *((uint16_t *)(trace + *tracepos)) & 0x7FFF;
+		*tracepos += sizeof(uint16_t);
+		uint8_t *next_frame = (trace + *tracepos);
+		*tracepos += next_data_len;
+		if ((next_data_len == 1) && (*data_len + next_data_len <= MAX_TOPAZ_READER_CMD_LEN)) {
+			memcpy(topaz_reader_command + *data_len, next_frame, next_data_len);
+			*data_len += next_data_len;
+			last_timestamp = next_timestamp + next_duration;
+		} else {
+			// rewind and exit
+			*tracepos = *tracepos - next_data_len - sizeof(uint16_t) - sizeof(uint16_t) - sizeof(uint32_t);
+			break;
+		}
+		uint16_t next_parity_len = (next_data_len-1)/8 + 1;
+		*tracepos += next_parity_len;
+	}
+
+	*duration = last_timestamp - timestamp;
+	
+	return true;
+}
+
+
+uint16_t printTraceLine(uint16_t tracepos, uint16_t traceLen, uint8_t *trace, uint8_t protocol, bool showWaitCycles, bool markCRCBytes)
+{
+	bool isResponse;
+	uint16_t data_len, parity_len;
+	uint32_t duration;
+	uint8_t topaz_reader_command[9];
+	uint32_t timestamp, first_timestamp, EndOfTransmissionTimestamp;
+	char explanation[30] = {0};
+	uint8_t mfData[32] = {0};
+	size_t mfDataLen = 0;
+
+	if (tracepos + sizeof(uint32_t) + sizeof(uint16_t) + sizeof(uint16_t) > traceLen) return traceLen;
+	
+	first_timestamp = *((uint32_t *)(trace));
+	timestamp = *((uint32_t *)(trace + tracepos));
+
+	tracepos += 4;
+	duration = *((uint16_t *)(trace + tracepos));
+	tracepos += 2;
+	data_len = *((uint16_t *)(trace + tracepos));
+	tracepos += 2;
+
+	if (data_len & 0x8000) {
+	  data_len &= 0x7fff;
+	  isResponse = true;
+	} else {
+	  isResponse = false;
+	}
+	parity_len = (data_len-1)/8 + 1;
+
+	if (tracepos + data_len + parity_len > traceLen) {
+		return traceLen;
+	}
+	uint8_t *frame = trace + tracepos;
+	tracepos += data_len;
+	uint8_t *parityBytes = trace + tracepos;
+	tracepos += parity_len;
+
+	if (protocol == TOPAZ && !isResponse) {
+		// topaz reader commands come in 1 or 9 separate frames with 7 or 8 Bits each.
+		// merge them:
+		if (merge_topaz_reader_frames(timestamp, &duration, &tracepos, traceLen, trace, frame, topaz_reader_command, &data_len)) {
+			frame = topaz_reader_command;
+		}
+	}
+	
+	//Check the CRC status
+	uint8_t crcStatus = 2;
+
+	if (data_len > 2) {
+		switch (protocol) {
+			case ICLASS:
+				crcStatus = iclass_CRC_check(isResponse, frame, data_len);
+				break;
+			case ISO_14443B:
+			case TOPAZ:
+				crcStatus = iso14443B_CRC_check(isResponse, frame, data_len); 
+				break;
+			case PROTO_MIFARE:
+				crcStatus = mifare_CRC_check(isResponse, frame, data_len);
+				break;
+			case ISO_14443A:
+				crcStatus = iso14443A_CRC_check(isResponse, frame, data_len);
+				break;
+			default: 
+				break;
+		}
+	}
+	//0 CRC-command, CRC not ok
+	//1 CRC-command, CRC ok
+	//2 Not crc-command
+
+	//--- Draw the data column
+	//char line[16][110];
+	char line[16][110];
+
+	for (int j = 0; j < data_len && j/16 < 16; j++) {
+
+		uint8_t parityBits = parityBytes[j>>3];
+		if (protocol != ISO_14443B && (isResponse || protocol == ISO_14443A) && (oddparity8(frame[j]) != ((parityBits >> (7-(j&0x0007))) & 0x01))) {
+			snprintf(line[j/16]+(( j % 16) * 4),110, "%02x! ", frame[j]);
+		} else {
+			snprintf(line[j/16]+(( j % 16) * 4), 110, " %02x ", frame[j]);
+		}
+
+	}
+
+	if (markCRCBytes) {
+		if(crcStatus == 0 || crcStatus == 1)
+		{//CRC-command
+			char *pos1 = line[(data_len-2)/16]+(((data_len-2) % 16) * 4);
+			(*pos1) = '[';
+			char *pos2 = line[(data_len)/16]+(((data_len) % 16) * 4);
+			sprintf(pos2, "%c", ']');
+		}
+	}
+
+	if(data_len == 0)
+	{
+		if(data_len == 0){
+			sprintf(line[0],"<empty trace - possible error>");
+		}
+	}
+	//--- Draw the CRC column
+
+	char *crc = (crcStatus == 0 ? "!crc" : (crcStatus == 1 ? " ok " : "    "));
+
+	EndOfTransmissionTimestamp = timestamp + duration;
+
+	if (protocol == PROTO_MIFARE)
+		annotateMifare(explanation, sizeof(explanation), frame, data_len, parityBytes, parity_len, isResponse);
+	
+	if(!isResponse)
+	{
+		switch(protocol) {
+			case ICLASS:		annotateIclass(explanation,sizeof(explanation),frame,data_len); break;
+			case ISO_14443A:	annotateIso14443a(explanation,sizeof(explanation),frame,data_len); break;
+			case ISO_14443B:	annotateIso14443b(explanation,sizeof(explanation),frame,data_len); break;
+			case TOPAZ:			annotateTopaz(explanation,sizeof(explanation),frame,data_len); break;
+			default:			break;
+		}
+	}
+
+	int num_lines = MIN((data_len - 1)/16 + 1, 16);
+	for (int j = 0; j < num_lines ; j++) {
+		if (j == 0) {
+			PrintAndLog(" %10d | %10d | %s |%-64s | %s| %s",
+				(timestamp - first_timestamp),
+				(EndOfTransmissionTimestamp - first_timestamp),
+				(isResponse ? "Tag" : "Rdr"),
+				line[j],
+				(j == num_lines-1) ? crc : "    ",
+				(j == num_lines-1) ? explanation : "");
+		} else {
+			PrintAndLog("            |            |     |%-64s | %s| %s",
+				line[j],
+				(j == num_lines-1) ? crc : "    ",
+				(j == num_lines-1) ? explanation : "");
+		}
+	}
+	
+	if (DecodeMifareData(frame, data_len, parityBytes, isResponse, mfData, &mfDataLen)) {
+		memset(explanation, 0x00, sizeof(explanation));
+		if (!isResponse) {
+			explanation[0] = '>';
+			annotateIso14443a(&explanation[1], sizeof(explanation) - 1, mfData, mfDataLen);
+		}
+		uint8_t crcc = iso14443A_CRC_check(isResponse, mfData, mfDataLen);
+		PrintAndLog("            |          * | dec |%-64s | %-4s| %s",
+			sprint_hex(mfData, mfDataLen),
+			(crcc == 0 ? "!crc" : (crcc == 1 ? " ok " : "    ")),
+			(true) ? explanation : "");
+	};
+
+	if (is_last_record(tracepos, trace, traceLen)) return traceLen;
+	
+	if (showWaitCycles && !isResponse && next_record_is_response(tracepos, trace)) {
+		uint32_t next_timestamp = *((uint32_t *)(trace + tracepos));
+		PrintAndLog(" %10d | %10d | %s | fdt (Frame Delay Time): %d",
+			(EndOfTransmissionTimestamp - first_timestamp),
+			(next_timestamp - first_timestamp),
+			"   ",
+			(next_timestamp - EndOfTransmissionTimestamp));
+	}
+
+	return tracepos;
+}
+
+
+int CmdHFList(const char *Cmd)
+{
+	bool showWaitCycles = false;
+	bool markCRCBytes = false;
+	bool loadFromFile = false;
+	bool saveToFile = false;
+	char param1 = '\0';
+	char param2 = '\0';
+	char param3 = '\0';
+	char type[40] = {0};
+	char filename[FILE_PATH_SIZE];
+	uint8_t protocol = 0;
+	
+	// parse command line
+	int tlen = param_getstr(Cmd, 0, type, sizeof(type));
+	if (param_getlength(Cmd, 1) == 1) {
+		param1 = param_getchar(Cmd, 1);
+	} else {
+		param_getstr(Cmd, 1, filename, sizeof(filename));
+	}
+	if (param_getlength(Cmd, 2) == 1) {
+		param2 = param_getchar(Cmd, 2);
+	} else if (strlen(filename) == 0) {
+		param_getstr(Cmd, 2, filename, sizeof(filename));
+	}
+	if (param_getlength(Cmd, 3) == 1) {
+		param3 = param_getchar(Cmd, 3);
+	} else if (strlen(filename) == 0) {
+		param_getstr(Cmd, 3, filename, sizeof(filename));
+	}
+
+	// Validate param1
+	bool errors = false;
+
+	if(tlen == 0) {
+		errors = true;
+	}
+
+	if(param1 == 'h'
+			|| (param1 != 0 && param1 != 'f' && param1 != 'c' && param1 != 'l')
+			|| (param2 != 0 && param2 != 'f' && param2 != 'c' && param2 != 'l')
+			|| (param3 != 0 && param3 != 'f' && param3 != 'c' && param3 != 'l')) {
+		errors = true;
+	}
+
+	if(!errors) {
+		if(strcmp(type, "iclass") == 0)	{
+			protocol = ICLASS;
+		} else if(strcmp(type, "mf") == 0) {
+			protocol = PROTO_MIFARE;
+		} else if(strcmp(type, "14a") == 0) {
+			protocol = ISO_14443A;
+		} else if(strcmp(type, "14b") == 0)	{
+			protocol = ISO_14443B;
+		} else if(strcmp(type,"topaz") == 0) {
+			protocol = TOPAZ;
+		} else if(strcmp(type,"raw") == 0) {
+			protocol = -1; //No crc, no annotations
+		} else if (strcmp(type, "save") == 0) {
+			saveToFile = true;
+		} else {
+			errors = true;
+		}
+	}
+	
+	if (param1 == 'f' || param2 == 'f' || param3 == 'f') {
+		showWaitCycles = true;
+	}
+
+	if (param1 == 'c' || param2 == 'c' || param3 == 'c') {
+		markCRCBytes = true;
+	}
+
+	if (param1 == 'l' || param2 == 'l' || param3 == 'l') {
+		loadFromFile = true;
+	}
+
+	if ((loadFromFile || saveToFile) && strlen(filename) == 0) {
+		errors = true;
+	}
+
+	if (loadFromFile && saveToFile) {
+		errors = true;
+	}
+	
+	if (errors) {
+		PrintAndLog("List or save protocol data.");
+		PrintAndLog("Usage:  hf list <protocol> [f] [c] [l <filename>]");
+		PrintAndLog("        hf list save <filename>");
+		PrintAndLog("    f      - show frame delay times as well");
+		PrintAndLog("    c      - mark CRC bytes");
+		PrintAndLog("    l      - load data from file instead of trace buffer");
+		PrintAndLog("    save   - save data to file");
+		PrintAndLog("Supported <protocol> values:");
+		PrintAndLog("    raw    - just show raw data without annotations");
+		PrintAndLog("    14a    - interpret data as iso14443a communications");
+		PrintAndLog("    mf     - interpret data as iso14443a communications and decrypt crypto1 stream");
+		PrintAndLog("    14b    - interpret data as iso14443b communications");
+		PrintAndLog("    iclass - interpret data as iclass communications");
+		PrintAndLog("    topaz  - interpret data as topaz communications");
+		PrintAndLog("");
+		PrintAndLog("example: hf list 14a f");
+		PrintAndLog("example: hf list iclass");
+		PrintAndLog("example: hf list save myCardTrace.trc");
+		PrintAndLog("example: hf list 14a l myCardTrace.trc");
+		return 0;
+	}
+
+
+	uint8_t *trace;
+	uint32_t tracepos = 0;
+	uint32_t traceLen = 0;
+	
+	if (loadFromFile) {
+		#define TRACE_CHUNK_SIZE (1<<16)		// 64K to start with. Will be enough for BigBuf and some room for future extensions
+		FILE *tracefile = NULL;
+		size_t bytes_read;
+		trace = malloc(TRACE_CHUNK_SIZE);
+		if (trace == NULL) {
+			PrintAndLog("Cannot allocate memory for trace");
+			return 2;
+		}
+		if ((tracefile = fopen(filename,"rb")) == NULL) { 
+			PrintAndLog("Could not open file %s", filename);
+			free(trace);
+			return 0;
+		}
+		while (!feof(tracefile)) {
+			bytes_read = fread(trace+traceLen, 1, TRACE_CHUNK_SIZE, tracefile);
+			traceLen += bytes_read;
+			if (!feof(tracefile)) {
+				uint8_t *p = realloc(trace, traceLen + TRACE_CHUNK_SIZE);
+				if (p == NULL) {
+					PrintAndLog("Cannot allocate memory for trace");
+					free(trace);
+					fclose(tracefile);
+					return 2;
+				}
+				trace = p;
+			}
+		}
+		fclose(tracefile);
+	} else {
+		trace = malloc(USB_CMD_DATA_SIZE);
+		// Query for the size of the trace
+		UsbCommand response;
+		GetFromBigBuf(trace, USB_CMD_DATA_SIZE, 0);
+		WaitForResponse(CMD_ACK, &response);
+		traceLen = response.arg[2];
+		if (traceLen > USB_CMD_DATA_SIZE) {
+			uint8_t *p = realloc(trace, traceLen);
+			if (p == NULL) {
+				PrintAndLog("Cannot allocate memory for trace");
+				free(trace);
+				return 2;
+			}
+			trace = p;
+			GetFromBigBuf(trace, traceLen, 0);
+			WaitForResponse(CMD_ACK, NULL);
+		}
+	}
+
+	if (saveToFile) {
+		FILE *tracefile = NULL;
+		if ((tracefile = fopen(filename,"wb")) == NULL) { 
+			PrintAndLog("Could not create file %s", filename);
+			return 1;
+		}
+		fwrite(trace, 1, traceLen, tracefile);
+		PrintAndLog("Recorded Activity (TraceLen = %d bytes) written to file %s", traceLen, filename);
+		fclose(tracefile);
+	} else {
+		PrintAndLog("Recorded Activity (TraceLen = %d bytes)", traceLen);
+		PrintAndLog("");
+		PrintAndLog("Start = Start of Start Bit, End = End of last modulation. Src = Source of Transfer");
+		PrintAndLog("iso14443a - All times are in carrier periods (1/13.56Mhz)");
+		PrintAndLog("iClass    - Timings are not as accurate");
+		PrintAndLog("");
+		PrintAndLog("      Start |        End | Src | Data (! denotes parity error)                                   | CRC | Annotation         |");
+		PrintAndLog("------------|------------|-----|-----------------------------------------------------------------|-----|--------------------|");
+
+		ClearAuthData();
+		while(tracepos < traceLen)
+		{
+			tracepos = printTraceLine(tracepos, traceLen, trace, protocol, showWaitCycles, markCRCBytes);
+		}
+	}
+
+	free(trace);
+	return 0;
+}
+
+int CmdHFSearch(const char *Cmd){
+	int ans = 0;
+	PrintAndLog("");
+	ans = CmdHF14AInfo("s");
+	if (ans > 0) {
+		PrintAndLog("\nValid ISO14443A Tag Found - Quiting Search\n");
+		return ans;
+	}
+	ans = HFiClassReader("", false, false);
+	if (ans) {
+		PrintAndLog("\nValid iClass Tag (or PicoPass Tag) Found - Quiting Search\n");
+		return ans;
+	}
+	ans = HF15Reader("", false);
+	if (ans) {
+		PrintAndLog("\nValid ISO15693 Tag Found - Quiting Search\n");
+		return ans;
+	}
+	//14b is longest test currently (and rarest chip type) ... put last
+	ans = HF14BInfo(false);
+	if (ans) {
+		PrintAndLog("\nValid ISO14443B Tag Found - Quiting Search\n");
+		return ans;
+	}
+	PrintAndLog("\nno known/supported 13.56 MHz tags found\n");
+	return 0;
+}
+
+int CmdHFSnoop(const char *Cmd)
+{
+	char * pEnd;
+	UsbCommand c = {CMD_HF_SNIFFER, {strtol(Cmd, &pEnd,0),strtol(pEnd, &pEnd,0),0}};
+	SendCommand(&c);
+	return 0;
+}
+
 static command_t CommandTable[] = 
 {
-  {"help",        CmdHelp,          1, "This help"},
-  {"14a",         CmdHF14A,         1, "{ ISO14443A RFIDs... }"},
-  {"14b",         CmdHF14B,         1, "{ ISO14443B RFIDs... }"},
-  {"15",          CmdHF15,          1, "{ ISO15693 RFIDs... }"},
-  {"legic",       CmdHFLegic,       0, "{ LEGIC RFIDs... }"},
-  {"iclass",      CmdHFiClass,      1, "{ ICLASS RFIDs... }"},
-  {"tune",        CmdHFTune,        0, "Continuously measure HF antenna tuning"},
-  {NULL, NULL, 0, NULL}
+	{"help",	CmdHelp,		1, "This help"},
+	{"14a",		CmdHF14A,		1, "{ ISO14443A RFIDs... }"},
+	{"14b",		CmdHF14B,		1, "{ ISO14443B RFIDs... }"},
+	{"15",		CmdHF15,		1, "{ ISO15693 RFIDs... }"},
+	{"epa",		CmdHFEPA,		1, "{ German Identification Card... }"},
+	{"emv",		CmdHFEMV,		1, "{ EMV cards... }"},
+	{"legic",	CmdHFLegic,		0, "{ LEGIC RFIDs... }"},
+	{"iclass",	CmdHFiClass,	1, "{ ICLASS RFIDs... }"},
+	{"mf",		CmdHFMF,		1, "{ MIFARE RFIDs... }"},
+	{"mfu",		CmdHFMFUltra,	1, "{ MIFARE Ultralight RFIDs... }"},
+	{"topaz",	CmdHFTopaz,		1, "{ TOPAZ (NFC Type 1) RFIDs... }"},
+	{"tune",	CmdHFTune,		0, "Continuously measure HF antenna tuning"},
+	{"list",	CmdHFList,		1, "List protocol data in trace buffer"},
+	{"search",	CmdHFSearch,	1, "Search for known HF tags [preliminary]"},
+	{"snoop",   CmdHFSnoop,     0, "<samples to skip (10000)> <triggers to skip (1)> Generic HF Snoop"},
+	{NULL,		NULL,			0, NULL}
 };
 
 int CmdHF(const char *Cmd)