X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/7fe9b0b742d7dae9c5af1d292d11840b5c3cbfae..fdcd43eb159b98ea8732ea4479ec1f7e38334f57:/client/cmdhf15.c?ds=inline

diff --git a/client/cmdhf15.c b/client/cmdhf15.c
index ca3c6d93..cc61d289 100644
--- a/client/cmdhf15.c
+++ b/client/cmdhf15.c
@@ -1,196 +1,978 @@
+//-----------------------------------------------------------------------------
+// Copyright (C) 2010 iZsh <izsh at fail0verflow.com>
+// Modified 2010-2012 by <adrian -at- atrox.at>
+// Modified 2012 by <vsza at vsza.hu>
+//
+// 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 ISO15693 commands
+//-----------------------------------------------------------------------------
+// There are three basic operation modes, depending on which device (proxmark/pc)
+// the signal processing, (de)modulation, transmission protocol and logic is done.
+// Mode 1:
+// All steps are done on the proxmark, the output of the commands is returned via
+// USB-debug-print commands.
+// Mode 2: 
+// The protocol is done on the PC, passing only Iso15693 data frames via USB. This
+// allows direct communication with a tag on command level
+// Mode 3:
+// The proxmark just samples the antenna and passes this "analog" data via USB to
+// the client. Signal Processing & decoding is done on the pc. This is the slowest
+// variant, but offers the possibility to analyze the waveforms directly. 
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <stdint.h>
-#include "proxusb.h"
+//#include "proxusb.h"
+#include "proxmark3.h"
 #include "data.h"
 #include "graph.h"
 #include "ui.h"
 #include "cmdparser.h"
 #include "cmdhf15.h"
+#include "iso15693tools.h"
+#include "cmdmain.h"
+
+#define FrameSOF              Iso15693FrameSOF
+#define Logic0						Iso15693Logic0
+#define Logic1						Iso15693Logic1
+#define FrameEOF					Iso15693FrameEOF
+
+#define Crc(data,datalen)     Iso15693Crc(data,datalen)
+#define AddCrc(data,datalen)  Iso15693AddCrc(data,datalen)
+#define sprintUID(target,uid)	Iso15693sprintUID(target,uid)
 
-static int CmdHelp(const char *Cmd);
+// structure and database for uid -> tagtype lookups 
+typedef struct { 
+	uint64_t uid;
+	int mask; // how many MSB bits used
+	char* desc;
+} productName; 
+
+
+const productName uidmapping[] = {
+	// UID, #significant Bits, "Vendor(+Product)"
+	{ 0xE001000000000000LL, 16, "Motorola" },
+	{ 0xE002000000000000LL, 16, "ST Microelectronics" },
+	{ 0xE003000000000000LL, 16, "Hitachi" },
+	{ 0xE004000000000000LL, 16, "Philips" },
+	{ 0xE004010000000000LL, 24, "Philips; IC SL2 ICS20" },
+	{ 0xE005000000000000LL, 16, "Infineon" },
+	{ 0xE005400000000000LL, 24, "Infineon; 56x32bit" },
+	{ 0xE006000000000000LL, 16, "Cylinc" },
+	{ 0xE007000000000000LL, 16, "Texas Instrument; " },
+	{ 0xE007000000000000LL, 20, "Texas Instrument; Tag-it HF-I Plus Inlay; 64x32bit" },
+	{ 0xE007100000000000LL, 20, "Texas Instrument; Tag-it HF-I Plus Chip; 64x32bit" },
+	{ 0xE007800000000000LL, 23, "Texas Instrument; Tag-it HF-I Plus (RF-HDT-DVBB tag or Third Party Products)" },
+	{ 0xE007C00000000000LL, 23, "Texas Instrument; Tag-it HF-I Standard; 8x32bit" },
+	{ 0xE007C40000000000LL, 23, "Texas Instrument; Tag-it HF-I Pro; 8x23bit; password" },	
+	{ 0xE008000000000000LL, 16, "Fujitsu" },
+	{ 0xE009000000000000LL, 16, "Matsushita" },
+	{ 0xE00A000000000000LL, 16, "NEC" },
+	{ 0xE00B000000000000LL, 16, "Oki Electric" },
+	{ 0xE00C000000000000LL, 16, "Toshiba" },
+	{ 0xE00D000000000000LL, 16, "Mitsubishi" },
+	{ 0xE00E000000000000LL, 16, "Samsung" },
+	{ 0xE00F000000000000LL, 16, "Hyundai" },
+	{ 0xE010000000000000LL, 16, "LG-Semiconductors" },
+	{ 0xE012000000000000LL, 16, "HID Corporation" },
+	{ 0xE016000000000000LL, 16, "EM-Marin SA (Skidata)" },
+	{ 0xE016040000000000LL, 24, "EM-Marin SA (Skidata Keycard-eco); EM4034? no 'read', just 'readmulti'" },
+	{ 0xE0160c0000000000LL, 24, "EM-Marin SA; EM4035?" },
+	{ 0xE016100000000000LL, 24, "EM-Marin SA (Skidata); EM4135; 36x64bit start page 13" },
+	{ 0xE016940000000000LL, 24, "EM-Marin SA (Skidata); 51x64bit" },
+	{ 0,0,"no tag-info available" } // must be the last entry
+};
 
-static uint16_t Iso15693Crc(uint8_t *v, int n)
+
+// fast method to just read the UID of a tag (collission detection not supported)
+//		*buf	should be large enough to fit the 64bit uid
+// returns 1 if suceeded
+int getUID(uint8_t *buf) 
 {
-  uint32_t reg;
-  int i, j;
+	UsbCommand resp;
+	uint8_t *recv;
+	UsbCommand c = {CMD_ISO_15693_COMMAND, {0, 1, 1}}; // len,speed,recv?
+	uint8_t *req=c.d.asBytes;
+	int reqlen=0;
+	
+	for (int retry=0;retry<3; retry++) { // don't give up the at the first try		
+		
+		req[0]= ISO15_REQ_SUBCARRIER_SINGLE | ISO15_REQ_DATARATE_HIGH | 
+		        ISO15_REQ_INVENTORY | ISO15_REQINV_SLOT1;
+		req[1]=ISO15_CMD_INVENTORY;
+		req[2]=0; // mask length
+		reqlen=AddCrc(req,3);
+		c.arg[0]=reqlen;
+	
+		SendCommand(&c);
+		
+		if (WaitForResponseTimeout(CMD_ACK,&resp,1000)) {
+			recv = resp.d.asBytes;
+			if (resp.arg[0]>=12 && ISO15_CRC_CHECK==Crc(recv,12)) {
+			   memcpy(buf,&recv[2],8);
+			   return 1;
+			} 
+		} 
+	} // retry
+	return 0;
+}
+
+
+
+// get a product description based on the UID
+//		uid[8] 	tag uid
+// returns description of the best match	
+static char* getTagInfo(uint8_t *uid) {
+	uint64_t myuid,mask;
+	int i=0, best=-1;	
+	memcpy(&myuid,uid,sizeof(uint64_t));
+	while (uidmapping[i].mask>0) {
+		mask=(~0LL) <<(64-uidmapping[i].mask);
+		if ((myuid & mask) == uidmapping[i].uid) {
+			if (best==-1) { 
+				best=i;
+			} else {
+				if (uidmapping[i].mask>uidmapping[best].mask) {
+					best=i;
+				}
+			}					
+		} 
+		i++;
+	} 
+
+	if (best>=0) return uidmapping[best].desc;
+	
+	return uidmapping[i].desc; 
+}
 
-  reg = 0xffff;
-  for (i = 0; i < n; i++) {
-    reg = reg ^ ((uint32_t)v[i]);
-    for (j = 0; j < 8; j++) {
-      if (reg & 0x0001) {
-        reg = (reg >> 1) ^ 0x8408;
-      } else {
-        reg = (reg >> 1);
-      }
-    }
-  }
 
-  return (uint16_t)~reg;
+// return a clear-text message to an errorcode
+static char* TagErrorStr(uint8_t error) {
+	switch (error) {
+		case 0x01: return "The command is not supported";
+		case 0x02: return "The command is not recognised";
+		case 0x03: return "The option is not supported.";
+		case 0x0f: return "Unknown error.";
+		case 0x10: return "The specified block is not available (doesn’t exist).";
+		case 0x11: return "The specified block is already -locked and thus cannot be locked again";
+		case 0x12: return "The specified block is locked and its content cannot be changed.";
+		case 0x13: return "The specified block was not successfully programmed.";
+		case 0x14: return "The specified block was not successfully locked.";
+		default: return "Reserved for Future Use or Custom command error.";
+	}
 }
 
+
+// Mode 3
 int CmdHF15Demod(const char *Cmd)
 {
-  // The sampling rate is 106.353 ksps/s, for T = 18.8 us
-
-  // SOF defined as
-  // 1) Unmodulated time of 56.64us
-  // 2) 24 pulses of 423.75khz
-  // 3) logic '1' (unmodulated for 18.88us followed by 8 pulses of 423.75khz)
-
-  static const int FrameSOF[] = {
-    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-     1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,
-     1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,
-    -1, -1, -1, -1,
-    -1, -1, -1, -1,
-     1,  1,  1,  1,
-     1,  1,  1,  1
-  };
-  static const int Logic0[] = {
-     1,  1,  1,  1,
-     1,  1,  1,  1,
-    -1, -1, -1, -1,
-    -1, -1, -1, -1
-  };
-  static const int Logic1[] = {
-    -1, -1, -1, -1,
-    -1, -1, -1, -1,
-     1,  1,  1,  1,
-     1,  1,  1,  1
-  };
-
-  // EOF defined as
-  // 1) logic '0' (8 pulses of 423.75khz followed by unmodulated for 18.88us)
-  // 2) 24 pulses of 423.75khz
-  // 3) Unmodulated time of 56.64us
-
-  static const int FrameEOF[] = {
-     1,  1,  1,  1,
-     1,  1,  1,  1,
-    -1, -1, -1, -1,
-    -1, -1, -1, -1,
-     1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,
-     1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,
-    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
-  };
-
-  int i, j;
-  int max = 0, maxPos;
-
-  int skip = 4;
-
-  if (GraphTraceLen < 1000) return 0;
-
-  // First, correlate for SOF
-  for (i = 0; i < 100; i++) {
-    int corr = 0;
-    for (j = 0; j < arraylen(FrameSOF); j += skip) {
-      corr += FrameSOF[j] * GraphBuffer[i + (j / skip)];
-    }
-    if (corr > max) {
-      max = corr;
-      maxPos = i;
-    }
-  }
-  PrintAndLog("SOF at %d, correlation %d", maxPos,
-    max / (arraylen(FrameSOF) / skip));
-
-  i = maxPos + arraylen(FrameSOF) / skip;
-  int k = 0;
-  uint8_t outBuf[20];
-  memset(outBuf, 0, sizeof(outBuf));
-  uint8_t mask = 0x01;
-  for (;;) {
-    int corr0 = 0, corr1 = 0, corrEOF = 0;
-    for (j = 0; j < arraylen(Logic0); j += skip) {
-      corr0 += Logic0[j] * GraphBuffer[i + (j / skip)];
-    }
-    for (j = 0; j < arraylen(Logic1); j += skip) {
-      corr1 += Logic1[j] * GraphBuffer[i + (j / skip)];
-    }
-    for (j = 0; j < arraylen(FrameEOF); j += skip) {
-      corrEOF += FrameEOF[j] * GraphBuffer[i + (j / skip)];
-    }
-    // Even things out by the length of the target waveform.
-    corr0 *= 4;
-    corr1 *= 4;
-
-    if (corrEOF > corr1 && corrEOF > corr0) {
-      PrintAndLog("EOF at %d", i);
-      break;
-    } else if (corr1 > corr0) {
-      i += arraylen(Logic1) / skip;
-      outBuf[k] |= mask;
-    } else {
-      i += arraylen(Logic0) / skip;
-    }
-    mask <<= 1;
-    if (mask == 0) {
-      k++;
-      mask = 0x01;
-    }
-    if ((i + (int)arraylen(FrameEOF)) >= GraphTraceLen) {
-      PrintAndLog("ran off end!");
-      break;
-    }
-  }
-  if (mask != 0x01) {
-    PrintAndLog("error, uneven octet! (discard extra bits!)");
-    PrintAndLog("   mask=%02x", mask);
-  }
-  PrintAndLog("%d octets", k);
-
-  for (i = 0; i < k; i++) {
-    PrintAndLog("# %2d: %02x ", i, outBuf[i]);
-  }
-  PrintAndLog("CRC=%04x", Iso15693Crc(outBuf, k - 2));
-  return 0;
+	// The sampling rate is 106.353 ksps/s, for T = 18.8 us
+	
+	int i, j;
+	int max = 0, maxPos = 0;
+
+	int skip = 4;
+
+	if (GraphTraceLen < 1000) return 0;
+
+	// First, correlate for SOF
+	for (i = 0; i < 100; i++) {
+		int corr = 0;
+		for (j = 0; j < arraylen(FrameSOF); j += skip) {
+			corr += FrameSOF[j] * GraphBuffer[i + (j / skip)];
+		}
+		if (corr > max) {
+			max = corr;
+			maxPos = i;
+		}
+	}
+	PrintAndLog("SOF at %d, correlation %d", maxPos,
+		max / (arraylen(FrameSOF) / skip));
+	
+	i = maxPos + arraylen(FrameSOF) / skip;
+	int k = 0;
+	uint8_t outBuf[20];
+	memset(outBuf, 0, sizeof(outBuf));
+	uint8_t mask = 0x01;
+	for (;;) {
+		int corr0 = 0, corr1 = 0, corrEOF = 0;
+		for (j = 0; j < arraylen(Logic0); j += skip) {
+			corr0 += Logic0[j] * GraphBuffer[i + (j / skip)];
+		}
+		for (j = 0; j < arraylen(Logic1); j += skip) {
+			corr1 += Logic1[j] * GraphBuffer[i + (j / skip)];
+		}
+		for (j = 0; j < arraylen(FrameEOF); j += skip) {
+			corrEOF += FrameEOF[j] * GraphBuffer[i + (j / skip)];
+		}
+		// Even things out by the length of the target waveform.
+		corr0 *= 4;
+		corr1 *= 4;
+		
+		if (corrEOF > corr1 && corrEOF > corr0) {
+			PrintAndLog("EOF at %d", i);
+			break;
+		} else if (corr1 > corr0) {
+			i += arraylen(Logic1) / skip;
+			outBuf[k] |= mask;
+		} else {
+			i += arraylen(Logic0) / skip;
+		}
+		mask <<= 1;
+		if (mask == 0) {
+			k++;
+			mask = 0x01;
+		}
+		if ((i + (int)arraylen(FrameEOF)) >= GraphTraceLen) {
+			PrintAndLog("ran off end!");
+			break;
+		}
+	}
+	if (mask != 0x01) {
+		PrintAndLog("error, uneven octet! (discard extra bits!)");
+		PrintAndLog("   mask=%02x", mask);
+	}
+	PrintAndLog("%d octets", k);
+	
+	for (i = 0; i < k; i++) {
+		PrintAndLog("# %2d: %02x ", i, outBuf[i]);
+	}
+	PrintAndLog("CRC=%04x", Iso15693Crc(outBuf, k - 2));
+	return 0;
 }
 
+
+
+// * Acquire Samples as Reader (enables carrier, sends inquiry)
 int CmdHF15Read(const char *Cmd)
 {
-  UsbCommand c = {CMD_ACQUIRE_RAW_ADC_SAMPLES_ISO_15693};
-  SendCommand(&c);
-  return 0;
+	UsbCommand c = {CMD_ACQUIRE_RAW_ADC_SAMPLES_ISO_15693};
+	SendCommand(&c);
+	return 0;
+}
+
+// Record Activity without enabeling carrier
+int CmdHF15Record(const char *Cmd)
+{
+	UsbCommand c = {CMD_RECORD_RAW_ADC_SAMPLES_ISO_15693};
+	SendCommand(&c);
+	return 0;
 }
 
 int CmdHF15Reader(const char *Cmd)
 {
-  UsbCommand c = {CMD_READER_ISO_15693, {strtol(Cmd, NULL, 0), 0, 0}};
-  SendCommand(&c);
-  return 0;
+	UsbCommand c = {CMD_READER_ISO_15693, {strtol(Cmd, NULL, 0), 0, 0}};
+	SendCommand(&c);
+	return 0;
 }
 
+// Simulation is still not working very good
 int CmdHF15Sim(const char *Cmd)
 {
-  UsbCommand c = {CMD_SIMTAG_ISO_15693, {strtol(Cmd, NULL, 0), 0, 0}};
-  SendCommand(&c);
-  return 0;
+	UsbCommand c = {CMD_SIMTAG_ISO_15693, {strtol(Cmd, NULL, 0), 0, 0}};
+	SendCommand(&c);
+	return 0;
 }
 
-static command_t CommandTable[] = 
+// finds the AFI (Application Family Idendifier) of a card, by trying all values
+// (There is no standard way of reading the AFI, allthough some tags support this)
+int CmdHF15Afi(const char *Cmd)
 {
-  {"help",    CmdHelp,        1, "This help"},
-  {"demod",   CmdHF15Demod,   1, "Demodulate ISO15693 from tag"},
-  {"read",    CmdHF15Read,    0, "Read HF tag (ISO 15693)"},
-  {"reader",  CmdHF15Reader,  0, "Act like an ISO15693 reader"},
-  {"sim",     CmdHF15Sim,     0, "Fake an ISO15693 tag"},
-  {NULL, NULL, 0, NULL}
+	UsbCommand c = {CMD_ISO_15693_FIND_AFI, {strtol(Cmd, NULL, 0), 0, 0}};
+	SendCommand(&c);
+	return 0;
+}
+
+// Reads all memory pages
+int CmdHF15DumpMem(const char*Cmd) {
+	UsbCommand resp;
+	uint8_t uid[8];	
+	uint8_t *recv=NULL;
+	UsbCommand c = {CMD_ISO_15693_COMMAND, {0, 1, 1}}; // len,speed,recv?
+	uint8_t *req=c.d.asBytes;
+	int reqlen=0;
+	int blocknum=0;
+	char output[80];
+		
+	if (!getUID(uid)) {
+		PrintAndLog("No Tag found.");
+		return 0;
+	}
+	
+	PrintAndLog("Reading memory from tag UID=%s",sprintUID(NULL,uid));
+	PrintAndLog("Tag Info: %s",getTagInfo(uid));
+
+	for (int retry=0; retry<5; retry++) {
+		
+		req[0]= ISO15_REQ_SUBCARRIER_SINGLE | ISO15_REQ_DATARATE_HIGH | 
+		        ISO15_REQ_NONINVENTORY | ISO15_REQ_ADDRESS;
+		req[1]=ISO15_CMD_READ;
+		memcpy(&req[2],uid,8);
+		req[10]=blocknum;
+		reqlen=AddCrc(req,11);
+		c.arg[0]=reqlen;
+	
+		SendCommand(&c);
+		
+		if (WaitForResponseTimeout(CMD_ACK,&resp,1000)) {
+			recv = resp.d.asBytes;
+			if (ISO15_CRC_CHECK==Crc(recv,resp.arg[0])) {
+				if (!(recv[0] & ISO15_RES_ERROR)) {
+					retry=0;
+					*output=0; // reset outputstring
+					sprintf(output, "Block %2i   ",blocknum);
+					for ( int i=1; i<resp.arg[0]-2; i++) { // data in hex
+						sprintf(output+strlen(output),"%02X ",recv[i]);
+					}					
+					strcat(output,"   "); 
+					for ( int i=1; i<resp.arg[0]-2; i++) { // data in cleaned ascii
+						sprintf(output+strlen(output),"%c",(recv[i]>31 && recv[i]<127)?recv[i]:'.');					
+					}					
+					PrintAndLog("%s",output);	
+					blocknum++;
+					// PrintAndLog("bn=%i",blocknum);
+				} else {
+					PrintAndLog("Tag returned Error %i: %s",recv[1],TagErrorStr(recv[1])); 
+					return 0;
+				}
+			} // else PrintAndLog("crc");
+		} // else PrintAndLog("r null");
+	} // retry
+  // TODO: need fix
+//	if (resp.arg[0]<3)
+//		PrintAndLog("Lost Connection");
+//	else if (ISO15_CRC_CHECK!=Crc(resp.d.asBytes,resp.arg[0]))
+//		PrintAndLog("CRC Failed");
+//	else 
+//		PrintAndLog("Tag returned Error %i: %s",recv[1],TagErrorStr(recv[1])); 
+	return 0;
+}
+
+
+// "HF 15" interface
+
+static command_t CommandTable15[] = 
+{
+	{"help",    CmdHF15Help,    1, "This help"},
+	{"demod",   CmdHF15Demod,   1, "Demodulate ISO15693 from tag"},
+	{"read",    CmdHF15Read,    0, "Read HF tag (ISO 15693)"},
+	{"record",  CmdHF15Record,  0, "Record Samples (ISO 15693)"}, // atrox
+	{"reader",  CmdHF15Reader,  0, "Act like an ISO15693 reader"},
+	{"sim",     CmdHF15Sim,     0, "Fake an ISO15693 tag"},
+	{"cmd",     CmdHF15Cmd,     0, "Send direct commands to ISO15693 tag"},
+	{"findafi", CmdHF15Afi,     0, "Brute force AFI of an ISO15693 tag"},
+	{"dumpmemory", CmdHF15DumpMem,     0, "Read all memory pages of an ISO15693 tag"},
+		{NULL, NULL, 0, NULL}
 };
 
 int CmdHF15(const char *Cmd)
 {
-  CmdsParse(CommandTable, Cmd);
-  return 0;
+	CmdsParse(CommandTable15, Cmd);
+	return 0;
+}
+
+int CmdHF15Help(const char *Cmd)
+{
+	CmdsHelp(CommandTable15);
+	return 0;
+}
+
+
+// "HF 15 Cmd" Interface
+// Allows direct communication with the tag on command level
+
+int CmdHF15CmdInquiry(const char *Cmd) 
+{
+	UsbCommand resp;
+	uint8_t *recv;
+	UsbCommand c = {CMD_ISO_15693_COMMAND, {0, 1, 1}}; // len,speed,recv?
+	uint8_t *req=c.d.asBytes;
+	int reqlen=0;
+	
+	req[0]= ISO15_REQ_SUBCARRIER_SINGLE | ISO15_REQ_DATARATE_HIGH | 
+	        ISO15_REQ_INVENTORY | ISO15_REQINV_SLOT1;
+	req[1]=ISO15_CMD_INVENTORY;
+	req[2]=0; // mask length
+	reqlen=AddCrc(req,3);
+	c.arg[0]=reqlen;
+
+	SendCommand(&c);
+	
+	if (WaitForResponseTimeout(CMD_ACK,&resp,1000)) {
+		if (resp.arg[0]>=12) {
+		   recv = resp.d.asBytes;
+		   PrintAndLog("UID=%s",sprintUID(NULL,&recv[2]));
+		   PrintAndLog("Tag Info: %s",getTagInfo(&recv[2]));	
+		} else {
+			PrintAndLog("Response to short, just %i bytes. No tag?\n",resp.arg[0]);
+		}
+	} else {
+		PrintAndLog("timeout.");
+	}
+	return 0;
+}
+
+
+// Turns debugging on(1)/off(0)
+int CmdHF15CmdDebug( const char *cmd) {
+	int debug=atoi(cmd);
+	if (strlen(cmd)<1) {
+		PrintAndLog("Usage: hf 15 cmd debug  <0/1>");
+		PrintAndLog("	0..no debugging output  1..turn debugging on");	
+		return 0;
+	}
+
+	UsbCommand c = {CMD_ISO_15693_DEBUG, {debug, 0, 0}};
+	SendCommand(&c);
+	return 0;
+}
+
+
+int CmdHF15CmdRaw (const char *cmd) {
+	UsbCommand resp;
+	uint8_t *recv;
+	UsbCommand c = {CMD_ISO_15693_COMMAND, {0, 1, 1}}; // len,speed,recv?
+	int reply=1;
+	int fast=1;	
+	int crc=0;
+	char buf[5]="";
+	int i=0;
+	uint8_t data[100];
+	unsigned int datalen=0, temp;
+	char *hexout;
+
+	
+	if (strlen(cmd)<3) {
+		PrintAndLog("Usage: hf 15 cmd raw  [-r] [-2] [-c] <0A 0B 0C ... hex>");
+		PrintAndLog("       -r    do not read response");
+		PrintAndLog("       -2    use slower '1 out of 256' mode");
+		PrintAndLog("       -c	  calculate and append CRC");
+		PrintAndLog(" Tip: turn on debugging for verbose output");		
+		return 0;	
+	}
+
+	// strip
+	while (*cmd==' ' || *cmd=='\t') cmd++;
+	
+	while (cmd[i]!='\0') {
+		if (cmd[i]==' ' || cmd[i]=='\t') { i++; continue; }
+		if (cmd[i]=='-') {
+			switch (cmd[i+1]) {
+				case 'r': 
+				case 'R': 
+					reply=0;
+					break;
+				case '2':
+					fast=0;
+					break;
+				case 'c':
+				case 'C':				
+					crc=1;
+					break;
+				default:
+					PrintAndLog("Invalid option");
+					return 0;
+			}
+			i+=2;
+			continue;
+		}
+		if ((cmd[i]>='0' && cmd[i]<='9') ||
+		    (cmd[i]>='a' && cmd[i]<='f') ||
+		    (cmd[i]>='A' && cmd[i]<='F') ) {
+		    buf[strlen(buf)+1]=0;
+		    buf[strlen(buf)]=cmd[i];
+		    i++;
+		    
+		    if (strlen(buf)>=2) {
+		    	sscanf(buf,"%x",&temp);
+		    	data[datalen]=(uint8_t)(temp & 0xff);
+		    	datalen++;
+		    	*buf=0;
+		    }
+		    continue;
+		}
+		PrintAndLog("Invalid char on input");
+		return 0;
+	}
+	if (crc) datalen=AddCrc(data,datalen);
+	
+	c.arg[0]=datalen;
+	c.arg[1]=fast;
+	c.arg[2]=reply;
+	memcpy(c.d.asBytes,data,datalen);
+	
+	SendCommand(&c);
+	
+	if (reply) {
+		if (WaitForResponseTimeout(CMD_ACK,&resp,1000)) {
+			recv = resp.d.asBytes;
+			PrintAndLog("received %i octets",resp.arg[0]);
+			hexout = (char *)malloc(resp.arg[0] * 3 + 1);
+			if (hexout != NULL) {
+				for (int i = 0; i < resp.arg[0]; i++) { // data in hex
+					sprintf(&hexout[i * 3], "%02X ", recv[i]);
+				}
+				PrintAndLog("%s", hexout);
+				free(hexout);
+			}
+		} else {
+			PrintAndLog("timeout while waiting for reply.");
+		}
+		
+	} // if reply
+	return 0;
+}
+
+
+/**
+ * parses common HF 15 CMD parameters and prepares some data structures
+ * Parameters:
+ *  **cmd   	command line
+ */
+int prepareHF15Cmd(char **cmd, UsbCommand *c, uint8_t iso15cmd[], int iso15cmdlen) {
+	int temp;
+	uint8_t *req=c->d.asBytes, uid[8];
+	uint32_t reqlen=0;
+
+	// strip
+	while (**cmd==' ' || **cmd=='\t') (*cmd)++;
+	
+	if (strstr(*cmd,"-2")==*cmd) {
+	 	c->arg[1]=0; // use 1of256
+	 	(*cmd)+=2;
+	}
+
+	// strip
+	while (**cmd==' ' || **cmd=='\t') (*cmd)++;
+	
+	if (strstr(*cmd,"-o")==*cmd) {
+	 	req[reqlen]=ISO15_REQ_OPTION;
+	 	(*cmd)+=2;
+	}
+	
+	// strip
+	while (**cmd==' ' || **cmd=='\t') (*cmd)++;
+	
+	switch (**cmd) {
+		case 0:
+			PrintAndLog("missing addr");
+			return 0;
+			break;
+		case 's':
+		case 'S':
+			// you must have selected the tag earlier
+			req[reqlen++]|= ISO15_REQ_SUBCARRIER_SINGLE | ISO15_REQ_DATARATE_HIGH | 
+		       ISO15_REQ_NONINVENTORY | ISO15_REQ_SELECT;
+		   memcpy(&req[reqlen],&iso15cmd[0],iso15cmdlen);
+			reqlen+=iso15cmdlen;		   
+		   break;
+		case 'u':
+		case 'U':
+			// unaddressed mode may not be supported by all vendors
+			req[reqlen++]|= ISO15_REQ_SUBCARRIER_SINGLE | ISO15_REQ_DATARATE_HIGH | 
+		       ISO15_REQ_NONINVENTORY;
+		   memcpy(&req[reqlen],&iso15cmd[0],iso15cmdlen);
+			reqlen+=iso15cmdlen;		   
+		   break;
+		case '*':
+			// we scan for the UID ourself
+			req[reqlen++]|= ISO15_REQ_SUBCARRIER_SINGLE | ISO15_REQ_DATARATE_HIGH | 
+		       ISO15_REQ_NONINVENTORY | ISO15_REQ_ADDRESS;
+		   memcpy(&req[reqlen],&iso15cmd[0],iso15cmdlen);
+			reqlen+=iso15cmdlen;		   
+		   if (!getUID(uid)) {
+		   	PrintAndLog("No Tag found");
+		   	return 0;
+		   }
+		   memcpy(req+reqlen,uid,8);
+		   PrintAndLog("Detected UID %s",sprintUID(NULL,uid));
+		   reqlen+=8;
+			break;			
+		default:
+			req[reqlen++]|= ISO15_REQ_SUBCARRIER_SINGLE | ISO15_REQ_DATARATE_HIGH | 
+		       ISO15_REQ_NONINVENTORY | ISO15_REQ_ADDRESS;
+			memcpy(&req[reqlen],&iso15cmd[0],iso15cmdlen);
+			reqlen+=iso15cmdlen;		   
+		   
+/* 			sscanf(cmd,"%hX%hX%hX%hX%hX%hX%hX%hX",
+				(short unsigned int *)&uid[7],(short unsigned int *)&uid[6],
+				(short unsigned int *)&uid[5],(short unsigned int *)&uid[4],
+				(short unsigned int *)&uid[3],(short unsigned int *)&uid[2],
+				(short unsigned int *)&uid[1],(short unsigned int *)&uid[0]); */
+			for (int i=0;i<8 && (*cmd)[i*2] && (*cmd)[i*2+1];i++) { // parse UID
+				sscanf((char[]){(*cmd)[i*2],(*cmd)[i*2+1],0},"%X",&temp);
+				uid[7-i]=temp&0xff;
+			}				
+				
+			PrintAndLog("Using UID %s",sprintUID(NULL,uid));
+			memcpy(&req[reqlen],&uid[0],8);		   
+		   reqlen+=8;
+	}
+	// skip to next space		
+	while (**cmd!=' ' && **cmd!='\t') (*cmd)++;
+	// skip over the space
+	while (**cmd==' ' || **cmd=='\t') (*cmd)++;
+	
+	c->arg[0]=reqlen;	
+	return 1;
+}
+
+/**
+ * Commandline handling: HF15 CMD SYSINFO
+ * get system information from tag/VICC
+ */
+int CmdHF15CmdSysinfo(const char *Cmd) {
+	UsbCommand resp;
+	uint8_t *recv;
+	UsbCommand c = {CMD_ISO_15693_COMMAND, {0, 1, 1}}; // len,speed,recv?
+	uint8_t *req=c.d.asBytes;
+	int reqlen=0;
+	char cmdbuf[100];
+	char *cmd=cmdbuf;
+	char output[2048]="";
+	int i;
+	
+	strncpy(cmd,Cmd,99);
+
+	// usage:
+	if (strlen(cmd)<1) {
+		PrintAndLog("Usage:  hf 15 cmd sysinfo    [options] <uid|s|u|*>");
+		PrintAndLog("           options:");
+		PrintAndLog("               -2        use slower '1 out of 256' mode");
+		PrintAndLog("           uid (either): ");
+		PrintAndLog("               <8B hex>  full UID eg E011223344556677");
+		PrintAndLog("               s         selected tag");
+		PrintAndLog("               u         unaddressed mode");
+		PrintAndLog("               *         scan for tag");
+		PrintAndLog("           start#:       page number to start 0-255");  
+		PrintAndLog("           count#:       number of pages");  
+		return 0;
+	}	
+	
+	prepareHF15Cmd(&cmd, &c,(uint8_t[]){ISO15_CMD_SYSINFO},1);	
+	reqlen=c.arg[0];
+	
+	reqlen=AddCrc(req,reqlen);
+	c.arg[0]=reqlen;
+
+	SendCommand(&c);
+
+	if (WaitForResponseTimeout(CMD_ACK,&resp,1000) && resp.arg[0]>2) {
+		recv = resp.d.asBytes;
+		if (ISO15_CRC_CHECK==Crc(recv,resp.arg[0])) {
+			if (!(recv[0] & ISO15_RES_ERROR)) {
+				*output=0; // reset outputstring
+				for ( i=1; i<resp.arg[0]-2; i++) {
+					sprintf(output+strlen(output),"%02X ",recv[i]);
+				}					
+				strcat(output,"\n\r");
+				strcat(output,"UID = ");
+				strcat(output,sprintUID(NULL,recv+2));
+				strcat(output,"\n\r");
+				strcat(output,getTagInfo(recv+2)); //ABC
+				strcat(output,"\n\r");
+				i=10;
+				if (recv[1] & 0x01) 
+					sprintf(output+strlen(output),"DSFID supported, set to %02X\n\r",recv[i++]);
+				else 
+					strcat(output,"DSFID not supported\n\r");
+				if (recv[1] & 0x02) 
+					sprintf(output+strlen(output),"AFI supported, set to %03X\n\r",recv[i++]);
+				else 
+					strcat(output,"AFI not supported\n\r");
+				if (recv[1] & 0x04) {
+					strcat(output,"Tag provides info on memory layout (vendor dependent)\n\r");
+					sprintf(output+strlen(output)," %i (or %i) bytes/page x %i pages \n\r",
+							(recv[i+1]&0x1F)+1, (recv[i+1]&0x1F), recv[i]+1);
+					i+=2;
+				} else 
+					strcat(output,"Tag does not provide information on memory layout\n\r");
+				if (recv[1] & 0x08) sprintf(output+strlen(output),"IC reference given: %02X\n\r",recv[i++]);
+					else strcat(output,"IC reference not given\n\r");
+
+
+				PrintAndLog("%s",output);	
+			} else {
+				PrintAndLog("Tag returned Error %i: %s",recv[0],TagErrorStr(recv[0])); 
+			}		   
+		} else {
+			PrintAndLog("CRC failed");
+		}
+	} else {
+		PrintAndLog("timeout: no answer");
+	}
+	
+	return 0;
+}
+
+/**
+ * Commandline handling: HF15 CMD READMULTI
+ * Read multiple blocks at once (not all tags support this)
+ */
+int CmdHF15CmdReadmulti(const char *Cmd) {
+	UsbCommand resp;
+	uint8_t *recv;
+	UsbCommand c = {CMD_ISO_15693_COMMAND, {0, 1, 1}}; // len,speed,recv?
+	uint8_t *req=c.d.asBytes;
+	int reqlen=0, pagenum,pagecount;
+	char cmdbuf[100];
+	char *cmd=cmdbuf;
+	char output[2048]="";
+	
+	strncpy(cmd,Cmd,99);
+
+	// usage:
+	if (strlen(cmd)<3) {
+		PrintAndLog("Usage:  hf 15 cmd readmulti  [options] <uid|s|u|*> <start#> <count#>");
+		PrintAndLog("           options:");
+		PrintAndLog("               -2        use slower '1 out of 256' mode");
+		PrintAndLog("           uid (either): ");
+		PrintAndLog("               <8B hex>  full UID eg E011223344556677");
+		PrintAndLog("               s         selected tag");
+		PrintAndLog("               u         unaddressed mode");
+		PrintAndLog("               *         scan for tag");
+		PrintAndLog("           start#:       page number to start 0-255");  
+		PrintAndLog("           count#:       number of pages");  
+		return 0;
+	}	
+	
+	prepareHF15Cmd(&cmd, &c,(uint8_t[]){ISO15_CMD_READMULTI},1);	
+	reqlen=c.arg[0];
+
+	pagenum=strtol(cmd,NULL,0);
+
+	// skip to next space		
+	while (*cmd!=' ' && *cmd!='\t') cmd++;
+	// skip over the space
+	while (*cmd==' ' || *cmd=='\t') cmd++;
+
+	pagecount=strtol(cmd,NULL,0);
+	if (pagecount>0) pagecount--; // 0 means 1 page, 1 means 2 pages, ...	
+	
+	req[reqlen++]=(uint8_t)pagenum;
+	req[reqlen++]=(uint8_t)pagecount;
+	
+	reqlen=AddCrc(req,reqlen);
+	
+	c.arg[0]=reqlen;
+
+	SendCommand(&c);
+
+	if (WaitForResponseTimeout(CMD_ACK,&resp,1000) && resp.arg[0]>2) {
+		recv = resp.d.asBytes;
+		if (ISO15_CRC_CHECK==Crc(recv,resp.arg[0])) {
+			if (!(recv[0] & ISO15_RES_ERROR)) {
+				*output=0; // reset outputstring
+				for ( int i=1; i<resp.arg[0]-2; i++) {
+					sprintf(output+strlen(output),"%02X ",recv[i]);
+				}					
+				strcat(output,"   ");
+				for ( int i=1; i<resp.arg[0]-2; i++) {
+					sprintf(output+strlen(output),"%c",recv[i]>31 && recv[i]<127?recv[i]:'.');					
+				}					
+				PrintAndLog("%s",output);	
+			} else {
+				PrintAndLog("Tag returned Error %i: %s",recv[0],TagErrorStr(recv[0])); 
+			}		   
+		} else {
+			PrintAndLog("CRC failed");
+		}
+	} else {
+		PrintAndLog("no answer");
+	}
+	
+	return 0;
+}
+
+/**
+ * Commandline handling: HF15 CMD READ
+ * Reads a single Block
+ */
+int CmdHF15CmdRead(const char *Cmd) {
+	UsbCommand resp;
+	uint8_t *recv;
+	UsbCommand c = {CMD_ISO_15693_COMMAND, {0, 1, 1}}; // len,speed,recv?
+	uint8_t *req=c.d.asBytes;
+	int reqlen=0, pagenum;
+	char cmdbuf[100];
+	char *cmd=cmdbuf;
+	char output[100]="";
+	
+	strncpy(cmd,Cmd,99);
+
+	// usage:
+	if (strlen(cmd)<3) {
+		PrintAndLog("Usage:  hf 15 cmd read    [options] <uid|s|u|*> <page#>");
+		PrintAndLog("           options:");
+		PrintAndLog("               -2        use slower '1 out of 256' mode");
+		PrintAndLog("           uid (either): ");
+		PrintAndLog("               <8B hex>  full UID eg E011223344556677");
+		PrintAndLog("               s         selected tag");
+		PrintAndLog("               u         unaddressed mode");
+		PrintAndLog("               *         scan for tag");
+		PrintAndLog("           page#:        page number 0-255");  
+		return 0;
+	}	
+	
+	prepareHF15Cmd(&cmd, &c,(uint8_t[]){ISO15_CMD_READ},1);	
+	reqlen=c.arg[0];
+
+	pagenum=strtol(cmd,NULL,0);
+	/*if (pagenum<0) {
+		PrintAndLog("invalid pagenum");
+		return 0;
+	}	*/
+	
+	req[reqlen++]=(uint8_t)pagenum;
+	
+	reqlen=AddCrc(req,reqlen);
+	
+	c.arg[0]=reqlen;
+
+	SendCommand(&c);
+
+	if (WaitForResponseTimeout(CMD_ACK,&resp,1000) && resp.arg[0]>2) {
+		recv = resp.d.asBytes;
+		if (ISO15_CRC_CHECK==Crc(recv,resp.arg[0])) {
+			if (!(recv[0] & ISO15_RES_ERROR)) {
+				*output=0; // reset outputstring
+				//sprintf(output, "Block %2i   ",blocknum);
+				for ( int i=1; i<resp.arg[0]-2; i++) {
+					sprintf(output+strlen(output),"%02X ",recv[i]);
+				}					
+				strcat(output,"   ");
+				for ( int i=1; i<resp.arg[0]-2; i++) {
+					sprintf(output+strlen(output),"%c",recv[i]>31 && recv[i]<127?recv[i]:'.');					
+				}					
+				PrintAndLog("%s",output);	
+			} else {
+				PrintAndLog("Tag returned Error %i: %s",recv[1],TagErrorStr(recv[1])); 
+			}		   
+		} else {
+			PrintAndLog("CRC failed");
+		}
+	} else {
+		PrintAndLog("no answer");
+	}
+	
+	return 0;
+}
+
+
+/**
+ * Commandline handling: HF15 CMD WRITE
+ * Writes a single Block - might run into timeout, even when successful
+ */
+int CmdHF15CmdWrite(const char *Cmd) {
+	UsbCommand resp;
+	uint8_t *recv;
+	UsbCommand c = {CMD_ISO_15693_COMMAND, {0, 1, 1}}; // len,speed,recv?
+	uint8_t *req=c.d.asBytes;
+	int reqlen=0, pagenum, temp;
+	char cmdbuf[100];
+	char *cmd=cmdbuf;
+	char *cmd2;
+	
+	strncpy(cmd,Cmd,99);
+
+	// usage:
+	if (strlen(cmd)<3) {
+		PrintAndLog("Usage:  hf 15 cmd write    [options] <uid|s|u|*> <page#> <hexdata>");
+		PrintAndLog("           options:");
+		PrintAndLog("               -2        use slower '1 out of 256' mode");
+		PrintAndLog("               -o        set OPTION Flag (needed for TI)");
+		PrintAndLog("           uid (either): ");
+		PrintAndLog("               <8B hex>  full UID eg E011223344556677");
+		PrintAndLog("               s         selected tag");
+		PrintAndLog("               u         unaddressed mode");
+		PrintAndLog("               *         scan for tag");
+		PrintAndLog("           page#:        page number 0-255");  
+		PrintAndLog("           hexdata:      data to be written eg AA BB CC DD");  
+		return 0;
+	}	
+	
+	prepareHF15Cmd(&cmd, &c,(uint8_t[]){ISO15_CMD_WRITE},1);	
+	reqlen=c.arg[0];
+	
+	// *cmd -> page num ; *cmd2 -> data 
+	cmd2=cmd;
+	while (*cmd2!=' ' && *cmd2!='\t' && *cmd2) cmd2++;
+	*cmd2=0;
+	cmd2++;	
+		
+	pagenum=strtol(cmd,NULL,0);
+	/*if (pagenum<0) {
+		PrintAndLog("invalid pagenum");
+		return 0;
+	}	*/	
+	req[reqlen++]=(uint8_t)pagenum;
+	
+	
+	while (cmd2[0] && cmd2[1]) { // hexdata, read by 2 hexchars 
+		if (*cmd2==' ') {
+			cmd2++; 
+			continue; 
+		}
+		sscanf((char[]){cmd2[0],cmd2[1],0},"%X",&temp);
+		req[reqlen++]=temp & 0xff;
+		cmd2+=2;
+	} 
+	
+	reqlen=AddCrc(req,reqlen);
+	
+	c.arg[0]=reqlen;
+
+	SendCommand(&c);
+
+	if (WaitForResponseTimeout(CMD_ACK,&resp,2000) && resp.arg[0]>2) {
+		recv = resp.d.asBytes;
+		if (ISO15_CRC_CHECK==Crc(recv,resp.arg[0])) {
+			if (!(recv[0] & ISO15_RES_ERROR)) {					
+				PrintAndLog("OK");	
+			} else {
+				PrintAndLog("Tag returned Error %i: %s",recv[1],TagErrorStr(recv[1])); 
+			}		   
+		} else {
+			PrintAndLog("CRC failed");
+		}
+	} else {
+		PrintAndLog("timeout: no answer - data may be written anyway");
+	}
+	
+	return 0;
 }
 
-int CmdHelp(const char *Cmd)
+
+
+static command_t CommandTable15Cmd[] =
 {
-  CmdsHelp(CommandTable);
-  return 0;
+	{"help",    CmdHF15CmdHelp,    1, "This Help"},
+ 	{"inquiry", CmdHF15CmdInquiry, 0, "Search for tags in range"},
+ /*	
+	{"select",  CmdHF15CmdSelect, 0, "Select an tag with a specific UID for further commands"},
+ */
+	{"read",    CmdHF15CmdRead,    0, "Read a block"},	
+	{"write",   CmdHF15CmdWrite,    0, "Write a block"},	
+	{"readmulti",CmdHF15CmdReadmulti,    0, "Reads multiple Blocks"},
+	{"sysinfo",CmdHF15CmdSysinfo,    0, "Get Card Information"},
+	{"raw",		 CmdHF15CmdRaw,		0,	"Send raw hex data to tag"}, 
+	{"debug",    CmdHF15CmdDebug,    0, "Turn debugging on/off"},
+	{NULL, NULL, 0, NULL}
+};
+
+int CmdHF15Cmd(const char *Cmd)
+{
+	CmdsParse(CommandTable15Cmd, Cmd);
+	return 0;
 }
+	
+int CmdHF15CmdHelp(const char *Cmd)
+{
+	CmdsHelp(CommandTable15Cmd);
+	return 0;
+}
+