[proxmark3-svn] / client / cmdlfhitag.c

//-----------------------------------------------------------------------------
// Copyright (C) 2012 Roel Verdult
//
// 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.
//-----------------------------------------------------------------------------
// Low frequency Hitag support
//-----------------------------------------------------------------------------

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "data.h"
#include "proxmark3.h"
#include "ui.h"
#include "cmdparser.h"
#include "common.h"
#include "util.h"
#include "parity.h"
#include "hitag2.h"
#include "hitagS.h"
#include "cmdmain.h"

static int CmdHelp(const char *Cmd);

size_t nbytes(size_t nbits) {
	return (nbits/8)+((nbits%8)>0);
}

int CmdLFHitagList(const char *Cmd)
{
 	uint8_t *got = malloc(USB_CMD_DATA_SIZE);

	// Query for the actual size of the trace
	UsbCommand response;
	GetFromBigBuf(got, 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(got, traceLen);
		if (p == NULL) {
			PrintAndLog("Cannot allocate memory for trace");
			free(got);
			return 2;
		}
		got = p;
		GetFromBigBuf(got, traceLen, 0);
		WaitForResponse(CMD_ACK,NULL);
	}
	
	PrintAndLog("recorded activity (TraceLen = %d bytes):");
	PrintAndLog(" ETU     :nbits: who bytes");
	PrintAndLog("---------+-----+----+-----------");

	int i = 0;
	int prev = -1;
	int len = strlen(Cmd);

	char filename[FILE_PATH_SIZE]  = { 0x00 };
	FILE* pf = NULL;
  	
	if (len > FILE_PATH_SIZE) 
		len = FILE_PATH_SIZE;
	memcpy(filename, Cmd, len);
   
	if (strlen(filename) > 0) {
		if ((pf = fopen(filename,"wb")) == NULL) {
			PrintAndLog("Error: Could not open file [%s]",filename);
			return 1;
		}
	}

	for (;;) {
  
		if(i > traceLen) { break; }

		bool isResponse;
		int timestamp = *((uint32_t *)(got+i));
		if (timestamp & 0x80000000) {
			timestamp &= 0x7fffffff;
			isResponse = 1;
		} else {
			isResponse = 0;
		}

		int parityBits = *((uint32_t *)(got+i+4));
		// 4 bytes of additional information...
		// maximum of 32 additional parity bit information
		//
		// TODO:
		// at each quarter bit period we can send power level (16 levels)
		// or each half bit period in 256 levels.

		int bits = got[i+8];
		int len = nbytes(got[i+8]);

		if (len > 100) {
		  break;
		}
		if (i + len > traceLen) { break;}

		uint8_t *frame = (got+i+9);

		// Break and stick with current result if buffer was not completely full
		if (frame[0] == 0x44 && frame[1] == 0x44 && frame[3] == 0x44) { break; }

		char line[1000] = "";
		int j;
		for (j = 0; j < len; j++) {

		  //if((parityBits >> (len - j - 1)) & 0x01) {
		  if (isResponse && (oddparity8(frame[j]) != ((parityBits >> (len - j - 1)) & 0x01))) {
			sprintf(line+(j*4), "%02x!  ", frame[j]);
		  }
		  else {
			sprintf(line+(j*4), "%02x   ", frame[j]);
		  }
		}

		PrintAndLog(" +%7d:  %3d: %s %s",
			(prev < 0 ? 0 : (timestamp - prev)),
			bits,
			(isResponse ? "TAG" : "   "),
			line);

		if (pf) {
			fprintf(pf," +%7d:  %3d: %s %s\n",
				(prev < 0 ? 0 : (timestamp - prev)),
				bits,
				(isResponse ? "TAG" : "   "),
				line);
		}
		
		prev = timestamp;
		i += (len + 9);
	}
  
	if (pf) {
		fclose(pf);
		PrintAndLog("Recorded activity succesfully written to file: %s", filename);
	}

	free(got);
	return 0;
}

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

int CmdLFHitagSim(const char *Cmd) {
    
  UsbCommand c = {CMD_SIMULATE_HITAG};
	char filename[FILE_PATH_SIZE] = { 0x00 };
	FILE* pf;
	bool tag_mem_supplied;
	int len = strlen(Cmd);
	if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE;
	memcpy(filename, Cmd, len);
	
	if (strlen(filename) > 0) {
		if ((pf = fopen(filename,"rb+")) == NULL) {
			PrintAndLog("Error: Could not open file [%s]",filename);
			return 1;
		}
		tag_mem_supplied = true;
		if (fread(c.d.asBytes,48,1,pf) == 0) {
      PrintAndLog("Error: File reading error");
      fclose(pf);
			return 1;
    }
		fclose(pf);
	} else {
		tag_mem_supplied = false;
	}
	
	// Does the tag comes with memory
	c.arg[0] = (uint32_t)tag_mem_supplied;

  SendCommand(&c);
  return 0;
}

int CmdLFHitagReader(const char *Cmd) {
	UsbCommand c = {CMD_READER_HITAG};//, {param_get32ex(Cmd,0,0,10),param_get32ex(Cmd,1,0,16),param_get32ex(Cmd,2,0,16),param_get32ex(Cmd,3,0,16)}};
	hitag_data* htd = (hitag_data*)c.d.asBytes;
	hitag_function htf = param_get32ex(Cmd,0,0,10);
	
	switch (htf) {
		case 01: { //RHTSF_CHALLENGE
			c = (UsbCommand){ CMD_READ_HITAG_S };
			num_to_bytes(param_get32ex(Cmd,1,0,16),4,htd->auth.NrAr);
			num_to_bytes(param_get32ex(Cmd,2,0,16),4,htd->auth.NrAr+4);
		} break;
		case 02: { //RHTSF_KEY
			c = (UsbCommand){ CMD_READ_HITAG_S };
			num_to_bytes(param_get64ex(Cmd,1,0,16),6,htd->crypto.key);
		} break;
		case RHT2F_PASSWORD: {
			num_to_bytes(param_get32ex(Cmd,1,0,16),4,htd->pwd.password);
		} break;
		case RHT2F_AUTHENTICATE: {
			num_to_bytes(param_get32ex(Cmd,1,0,16),4,htd->auth.NrAr);
			num_to_bytes(param_get32ex(Cmd,2,0,16),4,htd->auth.NrAr+4);
		} break;
		case RHT2F_CRYPTO: {
			num_to_bytes(param_get64ex(Cmd,1,0,16),6,htd->crypto.key);
			//			num_to_bytes(param_get32ex(Cmd,2,0,16),4,htd->auth.NrAr+4);
		} break;
		case RHT2F_TEST_AUTH_ATTEMPTS: {
			// No additional parameters needed
		} break;
		case RHT2F_UID_ONLY: {
			// No additional parameters needed
		} break;
		default: {
			PrintAndLog("\nError: unkown reader function %d",htf);
			PrintAndLog("");
			PrintAndLog("Usage: hitag reader <Reader Function #>");
			PrintAndLog("Reader Functions:");
			PrintAndLog(" HitagS (0*)");
			PrintAndLog("  01 <nr> <ar> (Challenge) read all pages from a Hitag S tag");
			PrintAndLog("  02 <key> (set to 0 if no authentication is needed) read all pages from a Hitag S tag");
			PrintAndLog(" Hitag1 (1*)");
			PrintAndLog(" Hitag2 (2*)");
			PrintAndLog("  21 <password> (password mode)");
			PrintAndLog("  22 <nr> <ar> (authentication)");
			PrintAndLog("  23 <key> (authentication) key is in format: ISK high + ISK low");
			PrintAndLog("  25 (test recorded authentications)");
			PrintAndLog("  26 just read UID");
			return 1;
		} break;
	}

	// Copy the hitag2 function into the first argument
	c.arg[0] = htf;

	// Send the command to the proxmark
	SendCommand(&c);

	UsbCommand resp;
	WaitForResponse(CMD_ACK,&resp);

	// Check the return status, stored in the first argument
	if (resp.arg[0] == false) return 1;
	
	uint32_t id = bytes_to_num(resp.d.asBytes,4);
		
	if (htf == RHT2F_UID_ONLY){
		PrintAndLog("Valid Hitag2 tag found - UID: %08x",id);
	} else {
		char filename[256];
		FILE* pf = NULL;

		sprintf(filename,"%08x_%04x.ht2",id,(rand() & 0xffff));
		if ((pf = fopen(filename,"wb")) == NULL) {
		  PrintAndLog("Error: Could not open file [%s]",filename);
		  return 1;
		}

		// Write the 48 tag memory bytes to file and finalize
		fwrite(resp.d.asBytes,1,48,pf);
		fclose(pf);

		PrintAndLog("Succesfully saved tag memory to [%s]",filename);
	}


	return 0;
}


int CmdLFHitagSimS(const char *Cmd) {
	UsbCommand c = { CMD_SIMULATE_HITAG_S };
	char filename[FILE_PATH_SIZE] = { 0x00 };
	FILE* pf;
	bool tag_mem_supplied;
	int len = strlen(Cmd);
	if (len > FILE_PATH_SIZE)
		len = FILE_PATH_SIZE;
	memcpy(filename, Cmd, len);

	if (strlen(filename) > 0) {
		if ((pf = fopen(filename, "rb+")) == NULL) {
			PrintAndLog("Error: Could not open file [%s]", filename);
			return 1;
		}
		tag_mem_supplied = true;
		if (fread(c.d.asBytes, 4*64, 1, pf) == 0) {
			PrintAndLog("Error: File reading error");
			fclose(pf);
			return 1;
		}
		fclose(pf);
	} else {
		tag_mem_supplied = false;
	}

	// Does the tag comes with memory
	c.arg[0] = (uint32_t) tag_mem_supplied;

	SendCommand(&c);
	return 0;
}

int CmdLFHitagCheckChallenges(const char *Cmd) {
	UsbCommand c = { CMD_TEST_HITAGS_TRACES };
	char filename[FILE_PATH_SIZE] = { 0x00 };
	FILE* pf;
	bool file_given;
	int len = strlen(Cmd);
	if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE;
	memcpy(filename, Cmd, len);
	
	if (strlen(filename) > 0) {
		if ((pf = fopen(filename,"rb+")) == NULL) {
			PrintAndLog("Error: Could not open file [%s]",filename);
			return 1;
		}
		file_given = true;
		if (fread(c.d.asBytes,8*60,1,pf) == 0) {
      PrintAndLog("Error: File reading error");
      fclose(pf);
			return 1;
        }
		fclose(pf);
	} else {
		file_given = false;
	}
	
	//file with all the challenges to try
	c.arg[0] = (uint32_t)file_given;

  SendCommand(&c);
  return 0;
}


int CmdLFHitagWP(const char *Cmd) {
	UsbCommand c = { CMD_WR_HITAG_S };
	hitag_data* htd = (hitag_data*)c.d.asBytes;
	hitag_function htf = param_get32ex(Cmd,0,0,10);
	switch (htf) {
		case 03: { //WHTSF_CHALLENGE
			num_to_bytes(param_get64ex(Cmd,1,0,16),8,htd->auth.NrAr);
			c.arg[2]= param_get32ex(Cmd, 2, 0, 10);
			num_to_bytes(param_get32ex(Cmd,3,0,16),4,htd->auth.data);
		} break;
		case 04: { //WHTSF_KEY
			num_to_bytes(param_get64ex(Cmd,1,0,16),6,htd->crypto.key);
			c.arg[2]= param_get32ex(Cmd, 2, 0, 10);
			num_to_bytes(param_get32ex(Cmd,3,0,16),4,htd->crypto.data);

		} break;
		default: {
			PrintAndLog("Error: unkown writer function %d",htf);
			PrintAndLog("Hitag writer functions");
			PrintAndLog(" HitagS (0*)");
			PrintAndLog("  03 <nr,ar> (Challenge) <page> <byte0...byte3> write page on a Hitag S tag");
			PrintAndLog("  04 <key> (set to 0 if no authentication is needed) <page> <byte0...byte3> write page on a Hitag S tag");
			PrintAndLog(" Hitag1 (1*)");
			PrintAndLog(" Hitag2 (2*)");
			return 1;
		} break;
	}
	// Copy the hitag function into the first argument
	c.arg[0] = htf;

  // Send the command to the proxmark
  SendCommand(&c);
  
  UsbCommand resp;
  WaitForResponse(CMD_ACK,&resp);
  
  // Check the return status, stored in the first argument
  if (resp.arg[0] == false) return 1;
  return 0;
}


static command_t CommandTable[] = 
{
  {"help",    		CmdHelp,           1, "This help"},
  {"list",    		CmdLFHitagList,    1, "<outfile> List Hitag trace history"},
  {"reader",  		CmdLFHitagReader,  1, "Act like a Hitag Reader"},
  {"sim",     		CmdLFHitagSim,     1, "<infile> Simulate Hitag transponder"},
  {"snoop",   		CmdLFHitagSnoop,   1, "Eavesdrop Hitag communication"},
  {"writer",   		CmdLFHitagWP,      1, "Act like a Hitag Writer" },
  {"simS",   		CmdLFHitagSimS,    1, "<hitagS.hts> Simulate HitagS transponder" }, 
  {"checkChallenges",	CmdLFHitagCheckChallenges,   1, "<challenges.cc> test all challenges" }, {
				NULL,NULL, 0, NULL }
};

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

int CmdHelp(const char *Cmd)
{
  CmdsHelp(CommandTable);
  return 0;
}
Commit	Line	Data
db09cb3a	1	//-----------------------------------------------------------------------------
	2	// Copyright (C) 2012 Roel Verdult
	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	// Low frequency Hitag support
	9	//-----------------------------------------------------------------------------
	10
	11	#include <stdio.h>
	12	#include <stdlib.h>
	13	#include <string.h>
	14	#include "data.h"
902cb3c0	15	#include "proxmark3.h"
db09cb3a	16	#include "ui.h"
	17	#include "cmdparser.h"
	18	#include "common.h"
	19	#include "util.h"
1f065e1d	20	#include "parity.h"
db09cb3a	21	#include "hitag2.h"
4e12287d	22	#include "hitagS.h"
902cb3c0	23	#include "cmdmain.h"
db09cb3a	24
	25	static int CmdHelp(const char *Cmd);
	26
47e18126	27	size_t nbytes(size_t nbits) {
	28	return (nbits/8)+((nbits%8)>0);
	29	}
	30
db09cb3a	31	int CmdLFHitagList(const char *Cmd)
db09cb3a	32	{
f71f4deb	33	uint8_t *got = malloc(USB_CMD_DATA_SIZE);
	34
	35	// Query for the actual size of the trace
	36	UsbCommand response;
	37	GetFromBigBuf(got, USB_CMD_DATA_SIZE, 0);
	38	WaitForResponse(CMD_ACK, &response);
	39	uint16_t traceLen = response.arg[2];
	40	if (traceLen > USB_CMD_DATA_SIZE) {
	41	uint8_t *p = realloc(got, traceLen);
	42	if (p == NULL) {
	43	PrintAndLog("Cannot allocate memory for trace");
	44	free(got);
	45	return 2;
	46	}
	47	got = p;
	48	GetFromBigBuf(got, traceLen, 0);
	49	WaitForResponse(CMD_ACK,NULL);
	50	}
	51
	52	PrintAndLog("recorded activity (TraceLen = %d bytes):");
	53	PrintAndLog(" ETU :nbits: who bytes");
	54	PrintAndLog("---------+-----+----+-----------");
db09cb3a	55
f71f4deb	56	int i = 0;
	57	int prev = -1;
	58	int len = strlen(Cmd);
b915fda3	59
f71f4deb	60	char filename[FILE_PATH_SIZE] = { 0x00 };
f71f4deb	61	FILE* pf = NULL;
b915fda3	62
f71f4deb	63	if (len > FILE_PATH_SIZE)
	64	len = FILE_PATH_SIZE;
	65	memcpy(filename, Cmd, len);
b915fda3	66
f71f4deb	67	if (strlen(filename) > 0) {
	68	if ((pf = fopen(filename,"wb")) == NULL) {
	69	PrintAndLog("Error: Could not open file [%s]",filename);
	70	return 1;
	71	}
b915fda3	72	}
db09cb3a	73
f71f4deb	74	for (;;) {
b915fda3	75
f71f4deb	76	if(i > traceLen) { break; }
	77
	78	bool isResponse;
	79	int timestamp = ((uint32_t )(got+i));
	80	if (timestamp & 0x80000000) {
	81	timestamp &= 0x7fffffff;
	82	isResponse = 1;
	83	} else {
	84	isResponse = 0;
	85	}
	86
	87	int parityBits = ((uint32_t )(got+i+4));
	88	// 4 bytes of additional information...
	89	// maximum of 32 additional parity bit information
	90	//
	91	// TODO:
	92	// at each quarter bit period we can send power level (16 levels)
	93	// or each half bit period in 256 levels.
	94
	95	int bits = got[i+8];
	96	int len = nbytes(got[i+8]);
	97
	98	if (len > 100) {
	99	break;
	100	}
	101	if (i + len > traceLen) { break;}
	102
	103	uint8_t *frame = (got+i+9);
	104
	105	// Break and stick with current result if buffer was not completely full
	106	if (frame[0] == 0x44 && frame[1] == 0x44 && frame[3] == 0x44) { break; }
	107
	108	char line[1000] = "";
	109	int j;
	110	for (j = 0; j < len; j++) {
f71f4deb	111
f71f4deb	112	//if((parityBits >> (len - j - 1)) & 0x01) {
1f065e1d	113	if (isResponse && (oddparity8(frame[j]) != ((parityBits >> (len - j - 1)) & 0x01))) {
f71f4deb	114	sprintf(line+(j*4), "%02x! ", frame[j]);
	115	}
	116	else {
	117	sprintf(line+(j*4), "%02x ", frame[j]);
	118	}
	119	}
	120
	121	PrintAndLog(" +%7d: %3d: %s %s",
	122	(prev < 0 ? 0 : (timestamp - prev)),
	123	bits,
	124	(isResponse ? "TAG" : " "),
	125	line);
	126
	127	if (pf) {
	128	fprintf(pf," +%7d: %3d: %s %s\n",
	129	(prev < 0 ? 0 : (timestamp - prev)),
	130	bits,
	131	(isResponse ? "TAG" : " "),
	132	line);
	133	}
	134
	135	prev = timestamp;
	136	i += (len + 9);
	137	}
2d495a81	138
f71f4deb	139	if (pf) {
	140	fclose(pf);
	141	PrintAndLog("Recorded activity succesfully written to file: %s", filename);
	142	}
97d582a6	143
f71f4deb	144	free(got);
f71f4deb	145	return 0;
db09cb3a	146	}
	147
	148	int CmdLFHitagSnoop(const char *Cmd) {
	149	UsbCommand c = {CMD_SNOOP_HITAG};
	150	SendCommand(&c);
	151	return 0;
	152	}
	153
	154	int CmdLFHitagSim(const char *Cmd) {
b915fda3	155
db09cb3a	156	UsbCommand c = {CMD_SIMULATE_HITAG};
b915fda3	157	char filename[FILE_PATH_SIZE] = { 0x00 };
db09cb3a	158	FILE* pf;
db09cb3a	159	bool tag_mem_supplied;
b915fda3	160	int len = strlen(Cmd);
	161	if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE;
	162	memcpy(filename, Cmd, len);
db09cb3a	163
	164	if (strlen(filename) > 0) {
	165	if ((pf = fopen(filename,"rb+")) == NULL) {
	166	PrintAndLog("Error: Could not open file [%s]",filename);
	167	return 1;
	168	}
	169	tag_mem_supplied = true;
759c16b3	170	if (fread(c.d.asBytes,48,1,pf) == 0) {
759c16b3	171	PrintAndLog("Error: File reading error");
90e278d3	172	fclose(pf);
759c16b3	173	return 1;
759c16b3	174	}
db09cb3a	175	fclose(pf);
	176	} else {
	177	tag_mem_supplied = false;
	178	}
	179
	180	// Does the tag comes with memory
	181	c.arg[0] = (uint32_t)tag_mem_supplied;
	182
	183	SendCommand(&c);
	184	return 0;
	185	}
	186
	187	int CmdLFHitagReader(const char *Cmd) {
db09cb3a	188	UsbCommand c = {CMD_READER_HITAG};//, {param_get32ex(Cmd,0,0,10),param_get32ex(Cmd,1,0,16),param_get32ex(Cmd,2,0,16),param_get32ex(Cmd,3,0,16)}};
	189	hitag_data* htd = (hitag_data*)c.d.asBytes;
	190	hitag_function htf = param_get32ex(Cmd,0,0,10);
	191
	192	switch (htf) {
4e12287d RS	193	case 01: { //RHTSF_CHALLENGE
	194	c = (UsbCommand){ CMD_READ_HITAG_S };
	195	num_to_bytes(param_get32ex(Cmd,1,0,16),4,htd->auth.NrAr);
	196	num_to_bytes(param_get32ex(Cmd,2,0,16),4,htd->auth.NrAr+4);
	197	} break;
	198	case 02: { //RHTSF_KEY
	199	c = (UsbCommand){ CMD_READ_HITAG_S };
	200	num_to_bytes(param_get64ex(Cmd,1,0,16),6,htd->crypto.key);
	201	} break;
db09cb3a	202	case RHT2F_PASSWORD: {
	203	num_to_bytes(param_get32ex(Cmd,1,0,16),4,htd->pwd.password);
	204	} break;
	205	case RHT2F_AUTHENTICATE: {
	206	num_to_bytes(param_get32ex(Cmd,1,0,16),4,htd->auth.NrAr);
	207	num_to_bytes(param_get32ex(Cmd,2,0,16),4,htd->auth.NrAr+4);
	208	} break;
bde10a50	209	case RHT2F_CRYPTO: {
bde10a50	210	num_to_bytes(param_get64ex(Cmd,1,0,16),6,htd->crypto.key);
f86d6b55	211	// num_to_bytes(param_get32ex(Cmd,2,0,16),4,htd->auth.NrAr+4);
bde10a50	212	} break;
db09cb3a	213	case RHT2F_TEST_AUTH_ATTEMPTS: {
	214	// No additional parameters needed
	215	} break;
f86d6b55	216	case RHT2F_UID_ONLY: {
	217	// No additional parameters needed
	218	} break;
db09cb3a	219	default: {
f86d6b55	220	PrintAndLog("\nError: unkown reader function %d",htf);
	221	PrintAndLog("");
	222	PrintAndLog("Usage: hitag reader <Reader Function #>");
	223	PrintAndLog("Reader Functions:");
ab4da50d	224	PrintAndLog(" HitagS (0*)");
4e12287d RS	225	PrintAndLog(" 01 <nr> <ar> (Challenge) read all pages from a Hitag S tag");
4e12287d RS	226	PrintAndLog(" 02 <key> (set to 0 if no authentication is needed) read all pages from a Hitag S tag");
ab4da50d	227	PrintAndLog(" Hitag1 (1*)");
	228	PrintAndLog(" Hitag2 (2*)");
	229	PrintAndLog(" 21 <password> (password mode)");
	230	PrintAndLog(" 22 <nr> <ar> (authentication)");
	231	PrintAndLog(" 23 <key> (authentication) key is in format: ISK high + ISK low");
	232	PrintAndLog(" 25 (test recorded authentications)");
f86d6b55	233	PrintAndLog(" 26 just read UID");
db09cb3a	234	return 1;
	235	} break;
	236	}
	237
	238	// Copy the hitag2 function into the first argument
	239	c.arg[0] = htf;
	240
f86d6b55	241	// Send the command to the proxmark
f86d6b55	242	SendCommand(&c);
ab4da50d	243
f86d6b55	244	UsbCommand resp;
	245	WaitForResponse(CMD_ACK,&resp);
	246
	247	// Check the return status, stored in the first argument
	248	if (resp.arg[0] == false) return 1;
	249
	250	uint32_t id = bytes_to_num(resp.d.asBytes,4);
	251
	252	if (htf == RHT2F_UID_ONLY){
	253	PrintAndLog("Valid Hitag2 tag found - UID: %08x",id);
	254	} else {
	255	char filename[256];
	256	FILE* pf = NULL;
	257
	258	sprintf(filename,"%08x_%04x.ht2",id,(rand() & 0xffff));
	259	if ((pf = fopen(filename,"wb")) == NULL) {
	260	PrintAndLog("Error: Could not open file [%s]",filename);
	261	return 1;
	262	}
	263
	264	// Write the 48 tag memory bytes to file and finalize
	265	fwrite(resp.d.asBytes,1,48,pf);
	266	fclose(pf);
	267
	268	PrintAndLog("Succesfully saved tag memory to [%s]",filename);
	269	}
	270
	271
	272	return 0;
db09cb3a	273	}
db09cb3a	274
4e12287d RS	275
	276	int CmdLFHitagSimS(const char *Cmd) {
	277	UsbCommand c = { CMD_SIMULATE_HITAG_S };
	278	char filename[FILE_PATH_SIZE] = { 0x00 };
	279	FILE* pf;
	280	bool tag_mem_supplied;
	281	int len = strlen(Cmd);
	282	if (len > FILE_PATH_SIZE)
	283	len = FILE_PATH_SIZE;
	284	memcpy(filename, Cmd, len);
	285
	286	if (strlen(filename) > 0) {
	287	if ((pf = fopen(filename, "rb+")) == NULL) {
	288	PrintAndLog("Error: Could not open file [%s]", filename);
	289	return 1;
	290	}
	291	tag_mem_supplied = true;
	292	if (fread(c.d.asBytes, 4*64, 1, pf) == 0) {
	293	PrintAndLog("Error: File reading error");
	294	fclose(pf);
	295	return 1;
	296	}
	297	fclose(pf);
	298	} else {
	299	tag_mem_supplied = false;
	300	}
	301
	302	// Does the tag comes with memory
	303	c.arg[0] = (uint32_t) tag_mem_supplied;
	304
	305	SendCommand(&c);
	306	return 0;
	307	}
	308
	309	int CmdLFHitagCheckChallenges(const char *Cmd) {
	310	UsbCommand c = { CMD_TEST_HITAGS_TRACES };
	311	char filename[FILE_PATH_SIZE] = { 0x00 };
	312	FILE* pf;
	313	bool file_given;
	314	int len = strlen(Cmd);
	315	if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE;
	316	memcpy(filename, Cmd, len);
	317
	318	if (strlen(filename) > 0) {
	319	if ((pf = fopen(filename,"rb+")) == NULL) {
	320	PrintAndLog("Error: Could not open file [%s]",filename);
	321	return 1;
	322	}
	323	file_given = true;
	324	if (fread(c.d.asBytes,8*60,1,pf) == 0) {
	325	PrintAndLog("Error: File reading error");
	326	fclose(pf);
	327	return 1;
	328	}
	329	fclose(pf);
	330	} else {
	331	file_given = false;
	332	}
	333
	334	//file with all the challenges to try
	335	c.arg[0] = (uint32_t)file_given;
	336
	337	SendCommand(&c);
	338	return 0;
339	}
340
341
342	int CmdLFHitagWP(const char *Cmd) {
343	UsbCommand c = { CMD_WR_HITAG_S };
344	hitag_data* htd = (hitag_data*)c.d.asBytes;
345	hitag_function htf = param_get32ex(Cmd,0,0,10);
346	switch (htf) {
347	case 03: { //WHTSF_CHALLENGE
348	num_to_bytes(param_get64ex(Cmd,1,0,16),8,htd->auth.NrAr);
349	c.arg[2]= param_get32ex(Cmd, 2, 0, 10);
350	num_to_bytes(param_get32ex(Cmd,3,0,16),4,htd->auth.data);
351	} break;
352	case 04: { //WHTSF_KEY
353	num_to_bytes(param_get64ex(Cmd,1,0,16),6,htd->crypto.key);
354	c.arg[2]= param_get32ex(Cmd, 2, 0, 10);
355	num_to_bytes(param_get32ex(Cmd,3,0,16),4,htd->crypto.data);
356
357	} break;
358	default: {
359	PrintAndLog("Error: unkown writer function %d",htf);
360	PrintAndLog("Hitag writer functions");
361	PrintAndLog(" HitagS (0*)");
362	PrintAndLog(" 03 <nr,ar> (Challenge) <page> <byte0...byte3> write page on a Hitag S tag");
363	PrintAndLog(" 04 <key> (set to 0 if no authentication is needed) <page> <byte0...byte3> write page on a Hitag S tag");
364	PrintAndLog(" Hitag1 (1*)");
365	PrintAndLog(" Hitag2 (2*)");
366	return 1;
367	} break;
368	}
369	// Copy the hitag function into the first argument
370	c.arg[0] = htf;
371
372	// Send the command to the proxmark
373	SendCommand(&c);
374
375	UsbCommand resp;
376	WaitForResponse(CMD_ACK,&resp);
377
378	// Check the return status, stored in the first argument
379	if (resp.arg[0] == false) return 1;
380	return 0;
381	}
382
383
3fe4ff4f	384	static command_t CommandTable[] =
db09cb3a	385	{
4e12287d RS	386	{"help", CmdHelp, 1, "This help"},
	387	{"list", CmdLFHitagList, 1, "<outfile> List Hitag trace history"},
	388	{"reader", CmdLFHitagReader, 1, "Act like a Hitag Reader"},
	389	{"sim", CmdLFHitagSim, 1, "<infile> Simulate Hitag transponder"},
	390	{"snoop", CmdLFHitagSnoop, 1, "Eavesdrop Hitag communication"},
	391	{"writer", CmdLFHitagWP, 1, "Act like a Hitag Writer" },
	392	{"simS", CmdLFHitagSimS, 1, "<hitagS.hts> Simulate HitagS transponder" },
	393	{"checkChallenges", CmdLFHitagCheckChallenges, 1, "<challenges.cc> test all challenges" }, {
	394	NULL,NULL, 0, NULL }
db09cb3a	395	};
	396
	397	int CmdLFHitag(const char *Cmd)
	398	{
3fe4ff4f	399	CmdsParse(CommandTable, Cmd);
db09cb3a	400	return 0;
	401	}
	402
	403	int CmdHelp(const char *Cmd)
	404	{
3fe4ff4f	405	CmdsHelp(CommandTable);
db09cb3a	406	return 0;
db09cb3a	407	}