[proxmark3-svn] / client / cmdhf.c

//-----------------------------------------------------------------------------
// Copyright (C) 2010 iZsh <izsh at fail0verflow.com>
//
// 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
// the license.
//-----------------------------------------------------------------------------
// High frequency commands
//-----------------------------------------------------------------------------

#include <stdio.h>
#include <string.h>
#include "proxmark3.h"
#include "graph.h"
#include "ui.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 "protocols.h"

static int CmdHelp(const char *Cmd);

int CmdHFTune(const char *Cmd)
{
  UsbCommand c={CMD_MEASURE_ANTENNA_TUNING_HF};
  SendCommand(&c);
  return 0;
}


void annotateIso14443a(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize)
{
	switch(cmd[0])
	{
	case ISO14443A_CMD_WUPA:        snprintf(exp,size,"WUPA"); break;
	case ISO14443A_CMD_ANTICOLL_OR_SELECT:{
		// 93 20 = Anticollision (usage: 9320 - answer: 4bytes UID+1byte UID-bytes-xor)
		// 93 70 = Select (usage: 9370+5bytes 9320 answer - answer: 1byte SAK)
		if(cmd[1] == 0x70)
		{
			snprintf(exp,size,"SELECT_UID"); break;
		}else
		{
			snprintf(exp,size,"ANTICOLL"); break;
		}
	}
	case ISO14443A_CMD_ANTICOLL_OR_SELECT_2:{
		//95 20 = Anticollision of cascade level2
		//95 70 = Select of cascade level2
		if(cmd[2] == 0x70)
		{
			snprintf(exp,size,"SELECT_UID-2"); break;
		}else
		{
			snprintf(exp,size,"ANTICOLL-2"); break;
		}
	}
	case ISO14443A_CMD_REQA:		snprintf(exp,size,"REQA"); break;
	case ISO14443A_CMD_READBLOCK:	snprintf(exp,size,"READBLOCK(%d)",cmd[1]); break;
	case ISO14443A_CMD_WRITEBLOCK:	snprintf(exp,size,"WRITEBLOCK(%d)",cmd[1]); break;
	case ISO14443A_CMD_HALT:		snprintf(exp,size,"HALT"); break;
	case ISO14443A_CMD_RATS:		snprintf(exp,size,"RATS"); break;
	case MIFARE_CMD_INC:			snprintf(exp,size,"INC(%d)",cmd[1]); break;
	case MIFARE_CMD_DEC:			snprintf(exp,size,"DEC(%d)",cmd[1]); break;
	case MIFARE_CMD_RESTORE:		snprintf(exp,size,"RESTORE(%d)",cmd[1]); break;
	case MIFARE_CMD_TRANSFER:		snprintf(exp,size,"TRANSFER(%d)",cmd[1]); break;
	case MIFARE_AUTH_KEYA:			snprintf(exp,size,"AUTH-A(%d)",cmd[1]); break;
	case MIFARE_AUTH_KEYB:			snprintf(exp,size,"AUTH-B(%d)",cmd[1]); break;
	case MIFARE_MAGICWUPC1:			snprintf(exp,size,"MAGIC WUPC1"); break;
	case MIFARE_MAGICWUPC2:			snprintf(exp,size,"MAGIC WUPC2"); break;
	case MIFARE_MAGICWIPEC:			snprintf(exp,size,"MAGIC WIPEC"); break;
	default:						snprintf(exp,size,"?"); break;
	}
	return;
}

void annotateIclass(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize)
{
	switch(cmd[0])
	{
	case ICLASS_CMD_ACTALL:      snprintf(exp,size,"ACTALL"); break;
	case ICLASS_CMD_READ_OR_IDENTIFY:{
		if(cmdsize > 1){
			snprintf(exp,size,"READ(%d)",cmd[1]);
		}else{
			snprintf(exp,size,"IDENTIFY");
		}
		break;
	}
	case ICLASS_CMD_SELECT:      snprintf(exp,size,"SELECT"); break;
	case ICLASS_CMD_PAGESEL:     snprintf(exp,size,"PAGESEL(%d)", cmd[1]); break;
	case ICLASS_CMD_READCHECK_KC:snprintf(exp,size,"READCHECK[Kc](%d)", cmd[1]); break;
	case ICLASS_CMD_READCHECK_KD:snprintf(exp,size,"READCHECK[Kd](%d)", cmd[1]); break;
	case ICLASS_CMD_CHECK:       snprintf(exp,size,"CHECK"); break;
	case ICLASS_CMD_DETECT:      snprintf(exp,size,"DETECT"); break;
	case ICLASS_CMD_HALT:        snprintf(exp,size,"HALT"); break;
	case ICLASS_CMD_UPDATE:      snprintf(exp,size,"UPDATE(%d)",cmd[1]); break;
	case ICLASS_CMD_ACT:         snprintf(exp,size,"ACT"); break;
	case ICLASS_CMD_READ4:       snprintf(exp,size,"READ4(%d)",cmd[1]); break;
	default:                     snprintf(exp,size,"?"); break;
	}
	return;
}

void annotateIso15693(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize)
{

	if(cmd[0] == 0x26)
	{
		switch(cmd[1]){
		case ISO15693_INVENTORY           :snprintf(exp, size, "INVENTORY");break;
		case ISO15693_STAYQUIET           :snprintf(exp, size, "STAY_QUIET");break;
		default:                     snprintf(exp,size,"?"); break;

		}
	}else if(cmd[0] == 0x02)
	{
		switch(cmd[1])
		{
		case ISO15693_READBLOCK            :snprintf(exp, size, "READBLOCK");break;
		case ISO15693_WRITEBLOCK           :snprintf(exp, size, "WRITEBLOCK");break;
		case ISO15693_LOCKBLOCK            :snprintf(exp, size, "LOCKBLOCK");break;
		case ISO15693_READ_MULTI_BLOCK     :snprintf(exp, size, "READ_MULTI_BLOCK");break;
		case ISO15693_SELECT               :snprintf(exp, size, "SELECT");break;
		case ISO15693_RESET_TO_READY       :snprintf(exp, size, "RESET_TO_READY");break;
		case ISO15693_WRITE_AFI            :snprintf(exp, size, "WRITE_AFI");break;
		case ISO15693_LOCK_AFI             :snprintf(exp, size, "LOCK_AFI");break;
		case ISO15693_WRITE_DSFID          :snprintf(exp, size, "WRITE_DSFID");break;
		case ISO15693_LOCK_DSFID           :snprintf(exp, size, "LOCK_DSFID");break;
		case ISO15693_GET_SYSTEM_INFO      :snprintf(exp, size, "GET_SYSTEM_INFO");break;
		case ISO15693_READ_MULTI_SECSTATUS :snprintf(exp, size, "READ_MULTI_SECSTATUS");break;
		default:                            snprintf(exp,size,"?"); break;
		}
	}
}

/**
06 00 = INITIATE
0E xx = SELECT ID (xx = Chip-ID)
0B = Get UID
08 yy = Read Block (yy = block number)
09 yy dd dd dd dd = Write Block (yy = block number; dd dd dd dd = data to be written)
0C = Reset to Inventory
0F = Completion
0A 11 22 33 44 55 66 = Authenticate (11 22 33 44 55 66 = data to authenticate)
**/

void annotateIso14443b(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize)
{
	switch(cmd[0]){
	case ISO14443B_REQB   : snprintf(exp,size,"REQB");break;
	case ISO14443B_ATTRIB : snprintf(exp,size,"ATTRIB");break;
	case ISO14443B_HALT   : snprintf(exp,size,"HALT");break;
	case ISO14443B_INITIATE     : snprintf(exp,size,"INITIATE");break;
	case ISO14443B_SELECT       : snprintf(exp,size,"SELECT(%d)",cmd[1]);break;
	case ISO14443B_GET_UID      : snprintf(exp,size,"GET UID");break;
	case ISO14443B_READ_BLK     : snprintf(exp,size,"READ_BLK(%d)", cmd[1]);break;
	case ISO14443B_WRITE_BLK    : snprintf(exp,size,"WRITE_BLK(%d)",cmd[1]);break;
	case ISO14443B_RESET        : snprintf(exp,size,"RESET");break;
	case ISO14443B_COMPLETION   : snprintf(exp,size,"COMPLETION");break;
	case ISO14443B_AUTHENTICATE : snprintf(exp,size,"AUTHENTICATE");break;
	default                     : snprintf(exp,size ,"?");break;
	}

}

/**
 * @brief iso14443B_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 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;
	}
	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];
	}
}

uint16_t printTraceLine(uint16_t tracepos, uint16_t traceLen, uint8_t *trace, uint8_t protocol, bool showWaitCycles)
{
	bool isResponse;
	uint16_t duration, data_len, parity_len;

	uint32_t timestamp, first_timestamp, EndOfTransmissionTimestamp;
	char explanation[30] = {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;

	//Check the CRC status
	uint8_t crcStatus = 2;

	if (data_len > 2) {
		uint8_t b1, b2;
		if(protocol == ICLASS)
		{
			crcStatus = iclass_CRC_check(isResponse, frame, data_len);

		}else if (protocol == ISO_14443B)
		{
			crcStatus = iso14443B_CRC_check(isResponse, frame, data_len);
		}
		else if (protocol == ISO_14443A){//Iso 14443a

			ComputeCrc14443(CRC_14443_A, frame, data_len-2, &b1, &b2);

			if (b1 != frame[data_len-2] || b2 != frame[data_len-1]) {
				if(!(isResponse & (data_len < 6)))
				{
						crcStatus = 0;
				}
			}
		}
	}
	//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++) {

		int oddparity = 0x01;
		int k;

		for (k=0 ; k<8 ; k++) {
			oddparity ^= (((frame[j] & 0xFF) >> k) & 0x01);
		}
		uint8_t parityBits = parityBytes[j>>3];
		if (isResponse && (oddparity != ((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(crcStatus == 1)
	{//CRC-command
		char *pos1 = line[(data_len-2)/16]+(((data_len-2) % 16) * 4)-1;
		(*pos1) = '[';
		char *pos2 = line[(data_len)/16]+(((data_len) % 16) * 4)-2;
		(*pos2) = ']';
	}
	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(!isResponse)
	{
		if(protocol == ICLASS)
			annotateIclass(explanation,sizeof(explanation),frame,data_len);
		else if (protocol == ISO_14443A)
			annotateIso14443a(explanation,sizeof(explanation),frame,data_len);
		else if(protocol == ISO_14443B)
			annotateIso14443b(explanation,sizeof(explanation),frame,data_len);
	}

	int num_lines = MIN((data_len - 1)/16 + 1, 16);
	for (int j = 0; j < num_lines ; j++) {
		if (j == 0) {
			PrintAndLog(" %9d | %9d | %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 (tracepos + sizeof(uint32_t) + sizeof(uint16_t) + sizeof(uint16_t) > traceLen) return traceLen;
	
	bool next_isResponse = *((uint16_t *)(trace + tracepos + 6)) & 0x8000;

	if (showWaitCycles && !isResponse && next_isResponse) {
		uint32_t next_timestamp = *((uint32_t *)(trace + tracepos));
		if (next_timestamp != 0x44444444) {
			PrintAndLog(" %9d | %9d | %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;
	char type[40] = {0};
	int tlen = param_getstr(Cmd,0,type);
	char param = param_getchar(Cmd, 1);
	bool errors = false;
	uint8_t protocol = 0;
	//Validate params
	if(tlen == 0)
	{
		errors = true;
	}
	if(param == 'h' || (param !=0 && param != 'f'))
	{
		errors = true;
	}
	if(!errors)
	{
		if(strcmp(type, "iclass") == 0)
		{
			protocol = ICLASS;
		}else if(strcmp(type, "14a") == 0)
		{
			protocol = ISO_14443A;
		}
		else if(strcmp(type, "14b") == 0)
		{
			protocol = ISO_14443B;
		}else if(strcmp(type,"raw")== 0)
		{
			protocol = -1;//No crc, no annotations
		}else{
			errors = true;
		}
	}

	if (errors) {
		PrintAndLog("List protocol data in trace buffer.");
		PrintAndLog("Usage:  hf list <protocol> [f]");
		PrintAndLog("    f      - show frame delay times as well");
		PrintAndLog("Supported <protocol> values:");
		PrintAndLog("    raw    - just show raw data without annotations");
		PrintAndLog("    14a    - interpret data as iso14443a communications");
		PrintAndLog("    14b    - interpret data as iso14443b communications");
		PrintAndLog("    iclass - interpret data as iclass communications");
		PrintAndLog("");
		PrintAndLog("example: hf list 14a f");
		PrintAndLog("example: hf list iclass");
		return 0;
	}


	if (param == 'f') {
		showWaitCycles = true;
	}


	uint8_t *trace;
	uint16_t tracepos = 0;
	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);
	uint16_t 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);
	}
	
	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("-----------|-----------|-----|-----------------------------------------------------------------|-----|--------------------|");

	while(tracepos < traceLen)
	{
		tracepos = printTraceLine(tracepos, traceLen, trace, protocol, showWaitCycles);
	}

	free(trace);
	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... }"},
  {"epa",         CmdHFEPA,         1, "{ German Identification Card... }"},
  {"legic",       CmdHFLegic,       0, "{ LEGIC RFIDs... }"},
  {"iclass",      CmdHFiClass,      1, "{ ICLASS RFIDs... }"},
  {"mf",      		CmdHFMF,		1, "{ MIFARE RFIDs... }"},
  {"mfu",			CmdHFMFUltra,		1, "{ MIFARE Ultralight RFIDs... }"},
  {"tune",        CmdHFTune,        0, "Continuously measure HF antenna tuning"},
  {"list",       CmdHFList,         1, "List protocol data in trace buffer"},
	{NULL, NULL, 0, NULL}
};

int CmdHF(const char *Cmd)
{
  CmdsParse(CommandTable, Cmd);
  return 0; 
}

int CmdHelp(const char *Cmd)
{
  CmdsHelp(CommandTable);
  return 0;
}
Commit	Line	Data
a553f267	1	//-----------------------------------------------------------------------------
	2	// Copyright (C) 2010 iZsh <izsh at fail0verflow.com>
	3	//
	4	// This code is licensed to you under the terms of the GNU GPL, version 2 or,
	5	// at your option, any later version. See the LICENSE.txt file for the text of
	6	// the license.
	7	//-----------------------------------------------------------------------------
	8	// High frequency commands
	9	//-----------------------------------------------------------------------------
	10
7fe9b0b7	11	#include <stdio.h>
4c3de57a	12	#include <string.h>
902cb3c0	13	#include "proxmark3.h"
7fe9b0b7	14	#include "graph.h"
	15	#include "ui.h"
	16	#include "cmdparser.h"
	17	#include "cmdhf.h"
	18	#include "cmdhf14a.h"
	19	#include "cmdhf14b.h"
	20	#include "cmdhf15.h"
5acd09bd	21	#include "cmdhfepa.h"
7fe9b0b7	22	#include "cmdhflegic.h"
cee5a30d	23	#include "cmdhficlass.h"
9ca155ba	24	#include "cmdhfmf.h"
5ee70129	25	#include "cmdhfmfu.h"
b67f7ec3	26	#include "protocols.h"
7fe9b0b7	27
	28	static int CmdHelp(const char *Cmd);
	29
	30	int CmdHFTune(const char *Cmd)
	31	{
	32	UsbCommand c={CMD_MEASURE_ANTENNA_TUNING_HF};
	33	SendCommand(&c);
	34	return 0;
	35	}
4c3de57a	36
4c3de57a MHS	37
	38	void annotateIso14443a(char exp, size_t size, uint8_t cmd, uint8_t cmdsize)
	39	{
	40	switch(cmd[0])
	41	{
41fdd0f0 MHS	42	case ISO14443A_CMD_WUPA: snprintf(exp,size,"WUPA"); break;
41fdd0f0 MHS	43	case ISO14443A_CMD_ANTICOLL_OR_SELECT:{
4df54240 MHS	44	// 93 20 = Anticollision (usage: 9320 - answer: 4bytes UID+1byte UID-bytes-xor)
4df54240 MHS	45	// 93 70 = Select (usage: 9370+5bytes 9320 answer - answer: 1byte SAK)
383608a6	46	if(cmd[1] == 0x70)
4c3de57a MHS	47	{
	48	snprintf(exp,size,"SELECT_UID"); break;
	49	}else
	50	{
4df54240 MHS	51	snprintf(exp,size,"ANTICOLL"); break;
	52	}
	53	}
41fdd0f0	54	case ISO14443A_CMD_ANTICOLL_OR_SELECT_2:{
4df54240 MHS	55	//95 20 = Anticollision of cascade level2
	56	//95 70 = Select of cascade level2
	57	if(cmd[2] == 0x70)
	58	{
	59	snprintf(exp,size,"SELECT_UID-2"); break;
	60	}else
	61	{
	62	snprintf(exp,size,"ANTICOLL-2"); break;
4c3de57a MHS	63	}
4c3de57a MHS	64	}
16a95d76	65	case ISO14443A_CMD_REQA: snprintf(exp,size,"REQA"); break;
	66	case ISO14443A_CMD_READBLOCK: snprintf(exp,size,"READBLOCK(%d)",cmd[1]); break;
	67	case ISO14443A_CMD_WRITEBLOCK: snprintf(exp,size,"WRITEBLOCK(%d)",cmd[1]); break;
	68	case ISO14443A_CMD_HALT: snprintf(exp,size,"HALT"); break;
	69	case ISO14443A_CMD_RATS: snprintf(exp,size,"RATS"); break;
	70	case MIFARE_CMD_INC: snprintf(exp,size,"INC(%d)",cmd[1]); break;
	71	case MIFARE_CMD_DEC: snprintf(exp,size,"DEC(%d)",cmd[1]); break;
	72	case MIFARE_CMD_RESTORE: snprintf(exp,size,"RESTORE(%d)",cmd[1]); break;
	73	case MIFARE_CMD_TRANSFER: snprintf(exp,size,"TRANSFER(%d)",cmd[1]); break;
	74	case MIFARE_AUTH_KEYA: snprintf(exp,size,"AUTH-A(%d)",cmd[1]); break;
	75	case MIFARE_AUTH_KEYB: snprintf(exp,size,"AUTH-B(%d)",cmd[1]); break;
	76	case MIFARE_MAGICWUPC1: snprintf(exp,size,"MAGIC WUPC1"); break;
	77	case MIFARE_MAGICWUPC2: snprintf(exp,size,"MAGIC WUPC2"); break;
	78	case MIFARE_MAGICWIPEC: snprintf(exp,size,"MAGIC WIPEC"); break;
	79	default: snprintf(exp,size,"?"); break;
4c3de57a MHS	80	}
	81	return;
	82	}
	83
	84	void annotateIclass(char exp, size_t size, uint8_t cmd, uint8_t cmdsize)
	85	{
4c3de57a MHS	86	switch(cmd[0])
4c3de57a MHS	87	{
337818f7	88	case ICLASS_CMD_ACTALL: snprintf(exp,size,"ACTALL"); break;
4df54240 MHS	89	case ICLASS_CMD_READ_OR_IDENTIFY:{
	90	if(cmdsize > 1){
	91	snprintf(exp,size,"READ(%d)",cmd[1]);
	92	}else{
	93	snprintf(exp,size,"IDENTIFY");
	94	}
	95	break;
	96	}
337818f7	97	case ICLASS_CMD_SELECT: snprintf(exp,size,"SELECT"); break;
49726b40 MHS	98	case ICLASS_CMD_PAGESEL: snprintf(exp,size,"PAGESEL(%d)", cmd[1]); break;
	99	case ICLASS_CMD_READCHECK_KC:snprintf(exp,size,"READCHECK[Kc](%d)", cmd[1]); break;
	100	case ICLASS_CMD_READCHECK_KD:snprintf(exp,size,"READCHECK[Kd](%d)", cmd[1]); break;
337818f7	101	case ICLASS_CMD_CHECK: snprintf(exp,size,"CHECK"); break;
49726b40	102	case ICLASS_CMD_DETECT: snprintf(exp,size,"DETECT"); break;
337818f7	103	case ICLASS_CMD_HALT: snprintf(exp,size,"HALT"); break;
49726b40 MHS	104	case ICLASS_CMD_UPDATE: snprintf(exp,size,"UPDATE(%d)",cmd[1]); break;
	105	case ICLASS_CMD_ACT: snprintf(exp,size,"ACT"); break;
	106	case ICLASS_CMD_READ4: snprintf(exp,size,"READ4(%d)",cmd[1]); break;
337818f7	107	default: snprintf(exp,size,"?"); break;
4c3de57a MHS	108	}
	109	return;
	110	}
	111
4df54240 MHS	112	void annotateIso15693(char exp, size_t size, uint8_t cmd, uint8_t cmdsize)
	113	{
	114
	115	if(cmd[0] == 0x26)
	116	{
	117	switch(cmd[1]){
	118	case ISO15693_INVENTORY :snprintf(exp, size, "INVENTORY");break;
	119	case ISO15693_STAYQUIET :snprintf(exp, size, "STAY_QUIET");break;
	120	default: snprintf(exp,size,"?"); break;
4c3de57a	121
4df54240 MHS	122	}
	123	}else if(cmd[0] == 0x02)
	124	{
	125	switch(cmd[1])
	126	{
	127	case ISO15693_READBLOCK :snprintf(exp, size, "READBLOCK");break;
	128	case ISO15693_WRITEBLOCK :snprintf(exp, size, "WRITEBLOCK");break;
	129	case ISO15693_LOCKBLOCK :snprintf(exp, size, "LOCKBLOCK");break;
	130	case ISO15693_READ_MULTI_BLOCK :snprintf(exp, size, "READ_MULTI_BLOCK");break;
	131	case ISO15693_SELECT :snprintf(exp, size, "SELECT");break;
	132	case ISO15693_RESET_TO_READY :snprintf(exp, size, "RESET_TO_READY");break;
	133	case ISO15693_WRITE_AFI :snprintf(exp, size, "WRITE_AFI");break;
	134	case ISO15693_LOCK_AFI :snprintf(exp, size, "LOCK_AFI");break;
	135	case ISO15693_WRITE_DSFID :snprintf(exp, size, "WRITE_DSFID");break;
	136	case ISO15693_LOCK_DSFID :snprintf(exp, size, "LOCK_DSFID");break;
	137	case ISO15693_GET_SYSTEM_INFO :snprintf(exp, size, "GET_SYSTEM_INFO");break;
	138	case ISO15693_READ_MULTI_SECSTATUS :snprintf(exp, size, "READ_MULTI_SECSTATUS");break;
41fdd0f0	139	default: snprintf(exp,size,"?"); break;
4df54240 MHS	140	}
	141	}
	142	}
08e8317c MHS	143
	144	/**
	145	06 00 = INITIATE
	146	0E xx = SELECT ID (xx = Chip-ID)
	147	0B = Get UID
	148	08 yy = Read Block (yy = block number)
	149	09 yy dd dd dd dd = Write Block (yy = block number; dd dd dd dd = data to be written)
	150	0C = Reset to Inventory
	151	0F = Completion
	152	0A 11 22 33 44 55 66 = Authenticate (11 22 33 44 55 66 = data to authenticate)
	153	**/
	154
41fdd0f0 MHS	155	void annotateIso14443b(char exp, size_t size, uint8_t cmd, uint8_t cmdsize)
	156	{
	157	switch(cmd[0]){
	158	case ISO14443B_REQB : snprintf(exp,size,"REQB");break;
	159	case ISO14443B_ATTRIB : snprintf(exp,size,"ATTRIB");break;
	160	case ISO14443B_HALT : snprintf(exp,size,"HALT");break;
08e8317c MHS	161	case ISO14443B_INITIATE : snprintf(exp,size,"INITIATE");break;
	162	case ISO14443B_SELECT : snprintf(exp,size,"SELECT(%d)",cmd[1]);break;
	163	case ISO14443B_GET_UID : snprintf(exp,size,"GET UID");break;
	164	case ISO14443B_READ_BLK : snprintf(exp,size,"READ_BLK(%d)", cmd[1]);break;
	165	case ISO14443B_WRITE_BLK : snprintf(exp,size,"WRITE_BLK(%d)",cmd[1]);break;
	166	case ISO14443B_RESET : snprintf(exp,size,"RESET");break;
	167	case ISO14443B_COMPLETION : snprintf(exp,size,"COMPLETION");break;
	168	case ISO14443B_AUTHENTICATE : snprintf(exp,size,"AUTHENTICATE");break;
	169	default : snprintf(exp,size ,"?");break;
41fdd0f0 MHS	170	}
	171
	172	}
	173
	174	/**
	175	* @brief iso14443B_CRC_Ok Checks CRC in command or response
	176	* @param isResponse
	177	* @param data
	178	* @param len
	179	* @return 0 : CRC-command, CRC not ok
	180	* 1 : CRC-command, CRC ok
	181	* 2 : Not crc-command
	182	*/
	183
	184	uint8_t iso14443B_CRC_check(bool isResponse, uint8_t* data, uint8_t len)
	185	{
	186	uint8_t b1,b2;
	187
	188	if(len <= 2) return 2;
	189
	190	ComputeCrc14443(CRC_14443_B, data, len-2, &b1, &b2);
	191	if(b1 != data[len-2] \|\| b2 != data[len-1]) {
	192	return 0;
	193	}
	194	return 1;
	195	}
	196
49726b40 MHS	197	/**
	198	* @brief iclass_CRC_Ok Checks CRC in command or response
	199	* @param isResponse
	200	* @param data
	201	* @param len
	202	* @return 0 : CRC-command, CRC not ok
	203	* 1 : CRC-command, CRC ok
	204	* 2 : Not crc-command
	205	*/
41fdd0f0	206	uint8_t iclass_CRC_check(bool isResponse, uint8_t* data, uint8_t len)
49726b40 MHS	207	{
	208	if(len < 4) return 2;//CRC commands (and responses) are all at least 4 bytes
	209
	210	uint8_t b1, b2;
	211
	212	if(!isResponse)//Commands to tag
	213	{
	214	/**
	215	These commands should have CRC. Total length leftmost
	216	4 READ
	217	4 READ4
	218	12 UPDATE - unsecured, ends with CRC16
	219	14 UPDATE - secured, ends with signature instead
	220	4 PAGESEL
	221	**/
	222	if(len == 4 \|\| len == 12)//Covers three of them
	223	{
	224	//Don't include the command byte
	225	ComputeCrc14443(CRC_ICLASS, (data+1), len-3, &b1, &b2);
	226	return b1 == data[len -2] && b2 == data[len-1];
	227	}
	228	return 2;
	229	}else{
	230	/**
	231	These tag responses should have CRC. Total length leftmost
	232
	233	10 READ data[8] crc[2]
	234	34 READ4 data[32]crc[2]
	235	10 UPDATE data[8] crc[2]
	236	10 SELECT csn[8] crc[2]
	237	10 IDENTIFY asnb[8] crc[2]
	238	10 PAGESEL block1[8] crc[2]
	239	10 DETECT csn[8] crc[2]
	240
	241	These should not
	242
	243	4 CHECK chip_response[4]
	244	8 READCHECK data[8]
	245	1 ACTALL sof[1]
	246	1 ACT sof[1]
	247
	248	In conclusion, without looking at the command; any response
	249	of length 10 or 34 should have CRC
	250	**/
	251	if(len != 10 && len != 34) return true;
	252
	253	ComputeCrc14443(CRC_ICLASS, data, len-2, &b1, &b2);
	254	return b1 == data[len -2] && b2 == data[len-1];
	255	}
	256	}
4c3de57a	257
f71f4deb	258	uint16_t printTraceLine(uint16_t tracepos, uint16_t traceLen, uint8_t *trace, uint8_t protocol, bool showWaitCycles)
4c3de57a MHS	259	{
4c3de57a MHS	260	bool isResponse;
f71f4deb	261	uint16_t duration, data_len, parity_len;
4c3de57a MHS	262
	263	uint32_t timestamp, first_timestamp, EndOfTransmissionTimestamp;
	264	char explanation[30] = {0};
	265
f71f4deb	266	if (tracepos + sizeof(uint32_t) + sizeof(uint16_t) + sizeof(uint16_t) > traceLen) return traceLen;
f71f4deb	267
4c3de57a MHS	268	first_timestamp = ((uint32_t )(trace));
4c3de57a MHS	269	timestamp = ((uint32_t )(trace + tracepos));
4c3de57a MHS	270
	271	tracepos += 4;
	272	duration = ((uint16_t )(trace + tracepos));
	273	tracepos += 2;
	274	data_len = ((uint16_t )(trace + tracepos));
	275	tracepos += 2;
	276
	277	if (data_len & 0x8000) {
	278	data_len &= 0x7fff;
	279	isResponse = true;
	280	} else {
	281	isResponse = false;
	282	}
	283	parity_len = (data_len-1)/8 + 1;
	284
f71f4deb	285	if (tracepos + data_len + parity_len > traceLen) {
f71f4deb	286	return traceLen;
4c3de57a	287	}
4c3de57a MHS	288	uint8_t *frame = trace + tracepos;
	289	tracepos += data_len;
	290	uint8_t *parityBytes = trace + tracepos;
	291	tracepos += parity_len;
	292
27eabcdc MHS	293	//Check the CRC status
	294	uint8_t crcStatus = 2;
	295
	296	if (data_len > 2) {
	297	uint8_t b1, b2;
	298	if(protocol == ICLASS)
	299	{
	300	crcStatus = iclass_CRC_check(isResponse, frame, data_len);
	301
	302	}else if (protocol == ISO_14443B)
	303	{
	304	crcStatus = iso14443B_CRC_check(isResponse, frame, data_len);
	305	}
	306	else if (protocol == ISO_14443A){//Iso 14443a
	307
	308	ComputeCrc14443(CRC_14443_A, frame, data_len-2, &b1, &b2);
	309
	310	if (b1 != frame[data_len-2] \|\| b2 != frame[data_len-1]) {
	311	if(!(isResponse & (data_len < 6)))
	312	{
	313	crcStatus = 0;
	314	}
	315	}
	316	}
	317	}
	318	//0 CRC-command, CRC not ok
	319	//1 CRC-command, CRC ok
	320	//2 Not crc-command
9e8255d4	321
4c3de57a	322	//--- Draw the data column
9e8255d4	323	//char line[16][110];
4c3de57a	324	char line[16][110];
9e8255d4 MHS	325
	326	for (int j = 0; j < data_len && j/16 < 16; j++) {
	327
4c3de57a MHS	328	int oddparity = 0x01;
	329	int k;
	330
	331	for (k=0 ; k<8 ; k++) {
	332	oddparity ^= (((frame[j] & 0xFF) >> k) & 0x01);
	333	}
4c3de57a	334	uint8_t parityBits = parityBytes[j>>3];
4c3de57a	335	if (isResponse && (oddparity != ((parityBits >> (7-(j&0x0007))) & 0x01))) {
9e8255d4 MHS	336	snprintf(line[j/16]+(( j % 16) * 4),110, "%02x! ", frame[j]);
9e8255d4 MHS	337
4c3de57a	338	} else {
8b9393d3	339	snprintf(line[j/16]+(( j % 16) * 4),110, "%02x ", frame[j]);
9e8255d4	340	}
27eabcdc MHS	341
	342	}
	343	if(crcStatus == 1)
	344	{//CRC-command
	345	char pos1 = line[(data_len-2)/16]+(((data_len-2) % 16) 4)-1;
	346	(*pos1) = '[';
	347	char pos2 = line[(data_len)/16]+(((data_len) % 16) 4)-2;
	348	(*pos2) = ']';
9e8255d4 MHS	349	}
	350	if(data_len == 0)
	351	{
	352	if(data_len == 0){
	353	sprintf(line[0],"<empty trace - possible error>");
4c3de57a MHS	354	}
	355	}
	356	//--- Draw the CRC column
4c3de57a	357
49726b40	358	char *crc = (crcStatus == 0 ? "!crc" : (crcStatus == 1 ? " ok " : " "));
4c3de57a MHS	359
	360	EndOfTransmissionTimestamp = timestamp + duration;
	361
	362	if(!isResponse)
	363	{
41fdd0f0	364	if(protocol == ICLASS)
79bf1ad2	365	annotateIclass(explanation,sizeof(explanation),frame,data_len);
41fdd0f0	366	else if (protocol == ISO_14443A)
79bf1ad2	367	annotateIso14443a(explanation,sizeof(explanation),frame,data_len);
41fdd0f0 MHS	368	else if(protocol == ISO_14443B)
41fdd0f0 MHS	369	annotateIso14443b(explanation,sizeof(explanation),frame,data_len);
4c3de57a MHS	370	}
4c3de57a MHS	371
9e8255d4 MHS	372	int num_lines = MIN((data_len - 1)/16 + 1, 16);
9e8255d4 MHS	373	for (int j = 0; j < num_lines ; j++) {
4c3de57a MHS	374	if (j == 0) {
	375	PrintAndLog(" %9d \| %9d \| %s \| %-64s\| %s\| %s",
	376	(timestamp - first_timestamp),
	377	(EndOfTransmissionTimestamp - first_timestamp),
	378	(isResponse ? "Tag" : "Rdr"),
	379	line[j],
	380	(j == num_lines-1) ? crc : " ",
	381	(j == num_lines-1) ? explanation : "");
	382	} else {
	383	PrintAndLog(" \| \| \| %-64s\| %s\| %s",
	384	line[j],
	385	(j == num_lines-1)?crc:" ",
	386	(j == num_lines-1) ? explanation : "");
	387	}
	388	}
	389
f71f4deb	390	if (tracepos + sizeof(uint32_t) + sizeof(uint16_t) + sizeof(uint16_t) > traceLen) return traceLen;
f71f4deb	391
4c3de57a MHS	392	bool next_isResponse = ((uint16_t )(trace + tracepos + 6)) & 0x8000;
	393
	394	if (showWaitCycles && !isResponse && next_isResponse) {
	395	uint32_t next_timestamp = ((uint32_t )(trace + tracepos));
	396	if (next_timestamp != 0x44444444) {
	397	PrintAndLog(" %9d \| %9d \| %s \| fdt (Frame Delay Time): %d",
	398	(EndOfTransmissionTimestamp - first_timestamp),
	399	(next_timestamp - first_timestamp),
	400	" ",
	401	(next_timestamp - EndOfTransmissionTimestamp));
	402	}
	403	}
f71f4deb	404
4c3de57a MHS	405	return tracepos;
	406	}
	407
f71f4deb	408
4c3de57a MHS	409	int CmdHFList(const char *Cmd)
	410	{
	411	bool showWaitCycles = false;
	412	char type[40] = {0};
	413	int tlen = param_getstr(Cmd,0,type);
	414	char param = param_getchar(Cmd, 1);
	415	bool errors = false;
b689b842	416	uint8_t protocol = 0;
4c3de57a	417	//Validate params
b689b842	418	if(tlen == 0)
4c3de57a MHS	419	{
	420	errors = true;
	421	}
	422	if(param == 'h' \|\| (param !=0 && param != 'f'))
	423	{
	424	errors = true;
	425	}
b689b842 MHS	426	if(!errors)
	427	{
	428	if(strcmp(type, "iclass") == 0)
	429	{
	430	protocol = ICLASS;
	431	}else if(strcmp(type, "14a") == 0)
	432	{
	433	protocol = ISO_14443A;
	434	}
	435	else if(strcmp(type, "14b") == 0)
	436	{
	437	protocol = ISO_14443B;
	438	}else if(strcmp(type,"raw")== 0)
	439	{
	440	protocol = -1;//No crc, no annotations
	441	}else{
	442	errors = true;
	443	}
	444	}
4c3de57a MHS	445
	446	if (errors) {
	447	PrintAndLog("List protocol data in trace buffer.");
92623113 MHS	448	PrintAndLog("Usage: hf list <protocol> [f]");
	449	PrintAndLog(" f - show frame delay times as well");
	450	PrintAndLog("Supported <protocol> values:");
	451	PrintAndLog(" raw - just show raw data without annotations");
337818f7	452	PrintAndLog(" 14a - interpret data as iso14443a communications");
41fdd0f0	453	PrintAndLog(" 14b - interpret data as iso14443b communications");
4c3de57a	454	PrintAndLog(" iclass - interpret data as iclass communications");
4c3de57a MHS	455	PrintAndLog("");
	456	PrintAndLog("example: hf list 14a f");
	457	PrintAndLog("example: hf list iclass");
	458	return 0;
	459	}
b689b842	460
4c3de57a MHS	461
	462	if (param == 'f') {
	463	showWaitCycles = true;
	464	}
	465
	466
f71f4deb	467	uint8_t *trace;
4c3de57a	468	uint16_t tracepos = 0;
f71f4deb	469	trace = malloc(USB_CMD_DATA_SIZE);
	470
	471	// Query for the size of the trace
	472	UsbCommand response;
	473	GetFromBigBuf(trace, USB_CMD_DATA_SIZE, 0);
	474	WaitForResponse(CMD_ACK, &response);
	475	uint16_t traceLen = response.arg[2];
	476	if (traceLen > USB_CMD_DATA_SIZE) {
	477	uint8_t *p = realloc(trace, traceLen);
	478	if (p == NULL) {
	479	PrintAndLog("Cannot allocate memory for trace");
	480	free(trace);
	481	return 2;
	482	}
	483	trace = p;
	484	GetFromBigBuf(trace, traceLen, 0);
	485	WaitForResponse(CMD_ACK, NULL);
	486	}
	487
	488	PrintAndLog("Recorded Activity (TraceLen = %d bytes)", traceLen);
4c3de57a MHS	489	PrintAndLog("");
	490	PrintAndLog("Start = Start of Start Bit, End = End of last modulation. Src = Source of Transfer");
	491	PrintAndLog("iso14443a - All times are in carrier periods (1/13.56Mhz)");
	492	PrintAndLog("iClass - Timings are not as accurate");
	493	PrintAndLog("");
	494	PrintAndLog(" Start \| End \| Src \| Data (! denotes parity error) \| CRC \| Annotation \|");
	495	PrintAndLog("-----------\|-----------\|-----\|-----------------------------------------------------------------\|-----\|--------------------\|");
	496
f71f4deb	497	while(tracepos < traceLen)
4c3de57a	498	{
f71f4deb	499	tracepos = printTraceLine(tracepos, traceLen, trace, protocol, showWaitCycles);
4c3de57a	500	}
f71f4deb	501
f71f4deb	502	free(trace);
4c3de57a MHS	503	return 0;
	504	}
	505
7fe9b0b7	506
	507	static command_t CommandTable[] =
	508	{
	509	{"help", CmdHelp, 1, "This help"},
37239a7c	510	{"14a", CmdHF14A, 1, "{ ISO14443A RFIDs... }"},
	511	{"14b", CmdHF14B, 1, "{ ISO14443B RFIDs... }"},
	512	{"15", CmdHF15, 1, "{ ISO15693 RFIDs... }"},
5acd09bd	513	{"epa", CmdHFEPA, 1, "{ German Identification Card... }"},
8e220a91	514	{"legic", CmdHFLegic, 0, "{ LEGIC RFIDs... }"},
cee5a30d	515	{"iclass", CmdHFiClass, 1, "{ ICLASS RFIDs... }"},
4c3de57a	516	{"mf", CmdHFMF, 1, "{ MIFARE RFIDs... }"},
5ee70129	517	{"mfu", CmdHFMFUltra, 1, "{ MIFARE Ultralight RFIDs... }"},
c59c3405	518	{"tune", CmdHFTune, 0, "Continuously measure HF antenna tuning"},
4c3de57a MHS	519	{"list", CmdHFList, 1, "List protocol data in trace buffer"},
4c3de57a MHS	520	{NULL, NULL, 0, NULL}
7fe9b0b7	521	};
	522
	523	int CmdHF(const char *Cmd)
	524	{
	525	CmdsParse(CommandTable, Cmd);
	526	return 0;
	527	}
	528
	529	int CmdHelp(const char *Cmd)
	530	{
	531	CmdsHelp(CommandTable);
	532	return 0;
	533	}