X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/c41dd5f9f690777eefd08eaeb43db52f599ce38c..refs/pull/910/head:/client/cmdhf15.c?ds=sidebyside

diff --git a/client/cmdhf15.c b/client/cmdhf15.c
index 6bcad201..cc86841b 100644
--- a/client/cmdhf15.c
+++ b/client/cmdhf15.c
@@ -90,34 +90,32 @@ static const int Iso15693FrameEOF[] = {
 
 // 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) 
-{
+// returns true if suceeded
+static bool getUID(uint8_t *buf) {
 	UsbCommand resp;
 	uint8_t *recv;
 	UsbCommand c = {CMD_ISO_15693_COMMAND, {0, 1, 1}}; // len,speed,recv?
-	uint8_t *req=c.d.asBytes;
+	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		
-		
+	for (int retry = 0;retry < 3; retry++) { // don't give up the at the first try		
 		req[0] = ISO15693_REQ_DATARATE_HIGH | ISO15693_REQ_INVENTORY | ISO15693_REQINV_SLOT1;
 		req[1] = ISO15693_INVENTORY;
 		req[2] = 0; // mask length
-		reqlen = AddCrc(req,3);
+		reqlen = AddCrc(req, 3);
 		c.arg[0] = reqlen;
 	
 		SendCommand(&c);
 		
-		if (WaitForResponseTimeout(CMD_ACK,&resp,1000)) {
+		if (WaitForResponseTimeout(CMD_ACK, &resp, 1000)) {
 			recv = resp.d.asBytes;
-			if (resp.arg[0]>=12 && ISO15693_CRC_CHECK==Crc(recv,12)) {
-			   memcpy(buf,&recv[2],8);
-			   return 1;
+			if (resp.arg[0] >= 12 && ISO15693_CRC_CHECK == Crc(recv, 12)) {
+			   memcpy(buf, &recv[2], 8);
+			   return true;
 			} 
 		} 
 	} // retry
-	return 0;
+	return false;
 }
 
 
@@ -139,8 +137,7 @@ static char* TagErrorStr(uint8_t error) {
 
 
 // Mode 3
-int CmdHF15Demod(const char *Cmd)
-{
+static int CmdHF15Demod(const char *Cmd) {
 	// The sampling rate is 106.353 ksps/s, for T = 18.8 us
 	
 	int i, j;
@@ -224,25 +221,23 @@ int CmdHF15Demod(const char *Cmd)
 }
 
 
-
 // * Acquire Samples as Reader (enables carrier, sends inquiry)
-int CmdHF15Read(const char *Cmd)
-{
+static int CmdHF15Read(const char *Cmd) {
 	UsbCommand c = {CMD_ACQUIRE_RAW_ADC_SAMPLES_ISO_15693};
 	SendCommand(&c);
 	return 0;
 }
 
+
 // Record Activity without enabling carrier
-int CmdHF15Snoop(const char *Cmd)
-{
+static int CmdHF15Snoop(const char *Cmd) {
 	UsbCommand c = {CMD_SNOOP_ISO_15693};
 	SendCommand(&c);
 	return 0;
 }
 
-int HF15Reader(const char *Cmd, bool verbose)
-{
+
+int HF15Reader(const char *Cmd, bool verbose) {
 	uint8_t uid[8];
 
 	if (!getUID(uid)) {
@@ -256,16 +251,16 @@ int HF15Reader(const char *Cmd, bool verbose)
 	return 1;
 }
 
-int CmdHF15Reader(const char *Cmd)
-{
+
+static int CmdHF15Reader(const char *Cmd) {
 	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)
-{
+static int CmdHF15Sim(const char *Cmd) {
 	char cmdp = param_getchar(Cmd, 0);
 	uint8_t uid[8] = {0x00};
 
@@ -293,17 +288,18 @@ int CmdHF15Sim(const char *Cmd)
 	return 0;
 }
 
+
 // 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)
-{
+static int CmdHF15Afi(const char *Cmd) {
 	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) {
+static int CmdHF15DumpMem(const char*Cmd) {
 	UsbCommand resp;
 	uint8_t uid[8];	
 	uint8_t *recv=NULL;
@@ -369,41 +365,7 @@ int CmdHF15DumpMem(const char*Cmd) {
 }
 
 
-// "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)"},
-	{"snoop",   CmdHF15Snoop,   0, "Eavesdrop ISO 15693 communications"},
-	{"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"},
-	{"csetuid",	CmdHF15CSetUID,	0,	"Set UID for magic Chinese card"},
-	{NULL, NULL, 0, NULL}
-};
-
-int CmdHF15(const char *Cmd)
-{
-	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) 
-{
+static int CmdHF15CmdInquiry(const char *Cmd) {
 	UsbCommand resp;
 	uint8_t *recv;
 	UsbCommand c = {CMD_ISO_15693_COMMAND, {0, 1, 1}}; // len,speed,recv?
@@ -435,7 +397,7 @@ int CmdHF15CmdInquiry(const char *Cmd)
 
 
 // Turns debugging on(1)/off(0)
-int CmdHF15CmdDebug( const char *cmd) {
+static int CmdHF15CmdDebug( const char *cmd) {
 	int debug = atoi(cmd);
 	if (strlen(cmd) < 1) {
 		PrintAndLog("Usage: hf 15 debug <0|1>");
@@ -450,7 +412,7 @@ int CmdHF15CmdDebug( const char *cmd) {
 }
 
 
-int CmdHF15CmdRaw (const char *cmd) {
+static int CmdHF15CmdRaw (const char *cmd) {
 	UsbCommand resp;
 	uint8_t *recv;
 	UsbCommand c = {CMD_ISO_15693_COMMAND, {0, 1, 1}}; // len,speed,recv?
@@ -560,30 +522,30 @@ int CmdHF15CmdRaw (const char *cmd) {
  * Parameters:
  *  **cmd   	command line
  */
-int prepareHF15Cmd(char **cmd, UsbCommand *c, uint8_t iso15cmd[], int iso15cmdlen) {
+static int prepareHF15Cmd(char **cmd, UsbCommand *c, uint8_t iso15cmd[], int iso15cmdlen) {
 	int temp;
-	uint8_t *req=c->d.asBytes;
+	uint8_t *req = c->d.asBytes;
 	uint8_t uid[8] = {0x00};
-	uint32_t reqlen=0;
+	uint32_t reqlen = 0;
 
 	// strip
 	while (**cmd==' ' || **cmd=='\t') (*cmd)++;
 	
-	if (strstr(*cmd,"-2")==*cmd) {
-	 	c->arg[1]=0; // use 1of256
-	 	(*cmd)+=2;
+	if (strstr(*cmd, "-2") == *cmd) {
+	 	c->arg[1] = 0; // use 1of256
+	 	(*cmd) += 2;
 	}
 
 	// strip
-	while (**cmd==' ' || **cmd=='\t') (*cmd)++;
+	while (**cmd == ' ' || **cmd == '\t') (*cmd)++;
 	
-	if (strstr(*cmd,"-o")==*cmd) {
-	 	req[reqlen]=ISO15693_REQ_OPTION;
-	 	(*cmd)+=2;
+	if (strstr(*cmd, "-o") == *cmd) {
+	 	req[reqlen] = ISO15693_REQ_OPTION;
+	 	(*cmd) += 2;
 	}
 	
 	// strip
-	while (**cmd==' ' || **cmd=='\t') (*cmd)++;
+	while (**cmd == ' ' || **cmd == '\t') (*cmd)++;
 	
 	switch (**cmd) {
 		case 0:
@@ -594,54 +556,54 @@ int prepareHF15Cmd(char **cmd, UsbCommand *c, uint8_t iso15cmd[], int iso15cmdle
 		case 'S':
 			// you must have selected the tag earlier
 			req[reqlen++] |= ISO15693_REQ_DATARATE_HIGH | ISO15693_REQ_SELECT;
-			memcpy(&req[reqlen],&iso15cmd[0],iso15cmdlen);
+			memcpy(&req[reqlen], &iso15cmd[0], iso15cmdlen);
 			reqlen += iso15cmdlen;		   
 		   break;
 		case 'u':
 		case 'U':
 			// unaddressed mode may not be supported by all vendors
 			req[reqlen++] |= ISO15693_REQ_DATARATE_HIGH;
-			memcpy(&req[reqlen],&iso15cmd[0],iso15cmdlen);
+			memcpy(&req[reqlen], &iso15cmd[0], iso15cmdlen);
 			reqlen += iso15cmdlen;		   
 		   break;
 		case '*':
 			// we scan for the UID ourself
 			req[reqlen++] |= ISO15693_REQ_DATARATE_HIGH | ISO15693_REQ_ADDRESS;
-			memcpy(&req[reqlen],&iso15cmd[0],iso15cmdlen);
-			reqlen+=iso15cmdlen;		   
+			memcpy(&req[reqlen], &iso15cmd[0], iso15cmdlen);
+			reqlen += iso15cmdlen;		   
 			if (!getUID(uid)) {
 				PrintAndLog("No Tag found");
 				return 0;
 			}
-			memcpy(req+reqlen,uid,8);
+			memcpy(req+reqlen ,uid, 8);
 			PrintAndLog("Detected UID %s",sprintUID(NULL,uid));
-			reqlen+=8;
+			reqlen += 8;
 			break;			
 		default:
 			req[reqlen++] |= ISO15693_REQ_DATARATE_HIGH | ISO15693_REQ_ADDRESS;
-			memcpy(&req[reqlen],&iso15cmd[0],iso15cmdlen);
-			reqlen+=iso15cmdlen;		   
+			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
+			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;
+			PrintAndLog("Using UID %s", sprintUID(NULL, uid));
+			memcpy(&req[reqlen], &uid[0], 8);		   
+			reqlen += 8;
 	}
 	// skip to next space		
-	while (**cmd!=' ' && **cmd!='\t') (*cmd)++;
+	while (**cmd != ' ' && **cmd != '\t') (*cmd)++;
 	// skip over the space
-	while (**cmd==' ' || **cmd=='\t') (*cmd)++;
+	while (**cmd == ' ' || **cmd == '\t') (*cmd)++;
 	
-	c->arg[0]=reqlen;	
+	c->arg[0] = reqlen;	
 	return 1;
 }
 
@@ -649,7 +611,7 @@ int prepareHF15Cmd(char **cmd, UsbCommand *c, uint8_t iso15cmd[], int iso15cmdle
  * Commandline handling: HF15 CMD SYSINFO
  * get system information from tag/VICC
  */
-int CmdHF15CmdSysinfo(const char *Cmd) {
+static int CmdHF15CmdSysinfo(const char *Cmd) {
 	UsbCommand resp;
 	uint8_t *recv;
 	UsbCommand c = {CMD_ISO_15693_COMMAND, {0, 1, 1}}; // len,speed,recv?
@@ -685,9 +647,9 @@ int CmdHF15CmdSysinfo(const char *Cmd) {
 
 	SendCommand(&c);
 
-	if (WaitForResponseTimeout(CMD_ACK,&resp,1000) && resp.arg[0]>2) {
+	if (WaitForResponseTimeout(CMD_ACK, &resp, 1000) && resp.arg[0] > 2) {
 		recv = resp.d.asBytes;
-		if (ISO15693_CRC_CHECK==Crc(recv,resp.arg[0])) {
+		if (ISO15693_CRC_CHECK == Crc(recv, resp.arg[0])) {
 			if (!(recv[0] & ISO15693_RES_ERROR)) {
 				*output=0; // reset outputstring
 				PrintAndLog("UID:               %s", sprintUID(NULL,recv+2));
@@ -727,11 +689,12 @@ int CmdHF15CmdSysinfo(const char *Cmd) {
 	return 0;
 }
 
+
 /**
  * Commandline handling: HF15 CMD READMULTI
  * Read multiple blocks at once (not all tags support this)
  */
-int CmdHF15CmdReadmulti(const char *Cmd) {
+static int CmdHF15CmdReadmulti(const char *Cmd) {
 	UsbCommand resp;
 	uint8_t *recv;
 	UsbCommand c = {CMD_ISO_15693_COMMAND, {0, 1, 1}}; // len,speed,recv?
@@ -806,11 +769,12 @@ int CmdHF15CmdReadmulti(const char *Cmd) {
 	return 0;
 }
 
+
 /**
  * Commandline handling: HF15 CMD READ
  * Reads a single Block
  */
-int CmdHF15CmdRead(const char *Cmd) {
+static int CmdHF15CmdRead(const char *Cmd) {
 	UsbCommand resp;
 	uint8_t *recv;
 	UsbCommand c = {CMD_ISO_15693_COMMAND, {0, 1, 1}}; // len,speed,recv?
@@ -883,22 +847,21 @@ int CmdHF15CmdRead(const char *Cmd) {
 
 /**
  * Commandline handling: HF15 CMD WRITE
- * Writes a single Block - might run into timeout, even when successful
- */
-int CmdHF15CmdWrite(const char *Cmd) {
+ * Writes a single Block
+**/
+static 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;
+	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 *cmd = cmdbuf;
 	char *cmd2;
 	
-	strncpy(cmd,Cmd,99);
+	strncpy(cmd, Cmd, 99);
 
 	// usage:
-	if (strlen(cmd)<3) {
+	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");
@@ -913,171 +876,207 @@ int CmdHF15CmdWrite(const char *Cmd) {
 		return 0;
 	}	
 	
-	prepareHF15Cmd(&cmd, &c,(uint8_t[]){ISO15693_WRITEBLOCK},1);	
-	reqlen=c.arg[0];
+	prepareHF15Cmd(&cmd, &c, (uint8_t[]){ISO15693_WRITEBLOCK}, 1);	
+	reqlen = c.arg[0];
 	
 	// *cmd -> page num ; *cmd2 -> data 
-	cmd2=cmd;
-	while (*cmd2!=' ' && *cmd2!='\t' && *cmd2) cmd2++;
-	*cmd2=0;
+	cmd2 = cmd;
+	while (*cmd2 != ' ' && *cmd2 != '\t' && *cmd2) cmd2++;
+	*cmd2 = 0;
 	cmd2++;	
 		
-	pagenum=strtol(cmd,NULL,0);
+	pagenum = strtol(cmd, NULL, 0);
 	/*if (pagenum<0) {
 		PrintAndLog("invalid pagenum");
 		return 0;
 	}	*/	
-	req[reqlen++]=(uint8_t)pagenum;
+	req[reqlen++] = (uint8_t)pagenum;
 	
 	
 	while (cmd2[0] && cmd2[1]) { // hexdata, read by 2 hexchars 
-		if (*cmd2==' ') {
+		if (*cmd2 == ' ') {
 			cmd2++; 
 			continue; 
 		}
-		sscanf((char[]){cmd2[0],cmd2[1],0},"%X",&temp);
-		req[reqlen++]=temp & 0xff;
-		cmd2+=2;
+		sscanf((char[]){cmd2[0], cmd2[1], 0}, "%X", &temp);
+		req[reqlen++] = temp & 0xff;
+		cmd2 += 2;
 	} 
 	
-	reqlen=AddCrc(req,reqlen);
-	
-	c.arg[0]=reqlen;
+	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 (ISO15693_CRC_CHECK==Crc(recv,resp.arg[0])) {
-			if (!(recv[0] & ISO15693_RES_ERROR)) {					
-				PrintAndLog("OK");	
-			} else {
-				PrintAndLog("Tag returned Error %i: %s",recv[1],TagErrorStr(recv[1])); 
-			}		   
+	if (WaitForResponseTimeout(CMD_ACK, &resp, 2000)) {
+		int recv_len = resp.arg[0];
+		uint8_t *recv = resp.d.asBytes;
+		if (recv_len == 0) {
+			PrintAndLog("Received SOF only. Maybe Picopass/iCLASS?");
+		} else if (recv_len == -1) {
+			PrintAndLog("Tag didn't respond");
+		} else if (recv_len == -2) {
+			PrintAndLog("Receive buffer overflow");
+		} else if (ISO15693_CRC_CHECK != Crc(recv, resp.arg[0])) {
+			PrintAndLog("CRC check failed on Tag response");
+		} else if (!(recv[0] & ISO15693_RES_ERROR)) {
+			PrintAndLog("Tag returned OK");	
 		} else {
-			PrintAndLog("CRC failed");
+			PrintAndLog("Tag returned Error %i: %s", recv[1], TagErrorStr(recv[1])); 
 		}
 	} else {
-		PrintAndLog("timeout: no answer - data may be written anyway");
+		PrintAndLog("No answer from Proxmark");
 	}
 	
 	return 0;
 }
 
-int CmdHF15CSetUID(const char *Cmd)
-{
-  uint8_t uid[8] = {0x00};
-  uint8_t oldUid[8], newUid[8] = {0x00};
-
-  uint8_t needHelp = 0;
-  char cmdp = 1;
-
-  if (param_getchar(Cmd, 0) && param_gethex(Cmd, 0, uid, 16)) {	
-    PrintAndLog("UID must include 16 HEX symbols");
-    return 1;
-  }
-
-  if (uid[0] != 0xe0) {
-    PrintAndLog("UID must begin with the byte 'E0'");
-    return 1;
-  }
-
-  while(param_getchar(Cmd, cmdp) != 0x00)
-  {
-    switch(param_getchar(Cmd, cmdp))
-    {
-    case 'h':
-    case 'H':
-      needHelp = 1;
-      break;
-    default:
-      PrintAndLog("ERROR: Unknown parameter '%c'", param_getchar(Cmd, cmdp));
-      needHelp = 1;
-      break;
-    }
-    cmdp++;
-  }
-
-  if (strlen(Cmd) < 1 || needHelp) {
-    PrintAndLog("");
-    PrintAndLog("Usage:  hf 15 csetuid <UID 16 hex symbols>");
-    PrintAndLog("sample:  hf 15 csetuid E004013344556677");
-    PrintAndLog("Set UID for magic Chinese card (only works with such cards)");
-    return 0;
-  }
-
-  PrintAndLog("");
-  PrintAndLog("new UID | %s", sprint_hex(uid, 8));
-  PrintAndLog("Using backdoor Magic tag function");
-
-  if (!getUID(oldUid)) {
-    PrintAndLog("Can't get old UID.");
-    return 1;
-  }
-
-  UsbCommand resp;
-  uint8_t *recv;
-  char *hexout;
-  UsbCommand c = {CMD_CSETUID_ISO_15693, {0, 0, 0}};
-  memcpy(c.d.asBytes, uid, 8);
+
+static int CmdHF15CSetUID(const char *Cmd) {
+	uint8_t uid[8] = {0x00};
+	uint8_t oldUid[8], newUid[8] = {0x00};
+	
+	uint8_t needHelp = 0;
+	char cmdp = 1;
+	
+	if (param_getchar(Cmd, 0) && param_gethex(Cmd, 0, uid, 16)) {	
+		PrintAndLog("UID must include 16 HEX symbols");
+		return 1;
+	}
+	
+	if (uid[0] != 0xe0) {
+		PrintAndLog("UID must begin with the byte 'E0'");
+		return 1;
+	}
+	
+	while (param_getchar(Cmd, cmdp) != 0x00) {
+		switch (param_getchar(Cmd, cmdp)) {
+			case 'h':
+			case 'H':
+				needHelp = 1;
+				break;
+			default:
+				PrintAndLog("ERROR: Unknown parameter '%c'", param_getchar(Cmd, cmdp));
+				needHelp = 1;
+			break;
+		}
+		cmdp++;
+	}
+	
+	if (strlen(Cmd) < 1 || needHelp) {
+		PrintAndLog("");
+		PrintAndLog("Usage:  hf 15 csetuid <UID 16 hex symbols>");
+		PrintAndLog("sample:  hf 15 csetuid E004013344556677");
+		PrintAndLog("Set UID for magic Chinese card (only works with such cards)");
+		return 0;
+	}
+	
+	PrintAndLog("Using backdoor Magic tag function");
+	
+	if (!getUID(oldUid)) {
+		PrintAndLog("Can't get old UID.");
+		return 1;
+	}
+	
+	UsbCommand c = {CMD_CSETUID_ISO_15693, {0, 0, 0}};
+	memcpy(c.d.asBytes, uid, 8);
+		
+	SendCommand(&c);
+	
+	UsbCommand resp;
+	if (WaitForResponseTimeout(CMD_ACK, &resp, 2000)) {
+		int recv_len = resp.arg[0];
+		uint8_t *recv = resp.d.asBytes;
+		if (recv_len == 0) {
+			PrintAndLog("Received SOF only. Maybe Picopass/iCLASS?");
+		} else if (recv_len == -1) {
+			PrintAndLog("Tag didn't respond");
+		} else if (recv_len == -2) {
+			PrintAndLog("Receive buffer overflow");
+		} else if (ISO15693_CRC_CHECK != Crc(recv, recv_len)) {
+			PrintAndLog("CRC check failed on Tag response");
+		} else if (!(recv[0] & ISO15693_RES_ERROR)) {
+			PrintAndLog("Tag returned OK");	
+		} else {
+			PrintAndLog("Tag returned Error %i: %s", recv[1], TagErrorStr(recv[1])); 
+		}
+	} else {
+		PrintAndLog("No answer from Proxmark");
+	}
+	
+	if (!getUID(newUid)) {
+		PrintAndLog("Can't get new UID.");
+		return 1;
+	}
 	
-  SendCommand(&c);
-
-  for (int i=0; i<4; i++) {
-    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 (!getUID(newUid)) {
-    PrintAndLog("Can't get new UID.");
-    return 1;
-  }
-
-  PrintAndLog("");
-  PrintAndLog("old UID : %02X %02X %02X %02X %02X %02X %02X %02X", oldUid[7], oldUid[6], oldUid[5], oldUid[4], oldUid[3], oldUid[2], oldUid[1], oldUid[0]);
-  PrintAndLog("new UID : %02X %02X %02X %02X %02X %02X %02X %02X", newUid[7], newUid[6], newUid[5], newUid[4], newUid[3], newUid[2], newUid[1], newUid[0]);
-  return 0;
+	PrintAndLog("");
+	PrintAndLog("old UID : %02X %02X %02X %02X %02X %02X %02X %02X", oldUid[7], oldUid[6], oldUid[5], oldUid[4], oldUid[3], oldUid[2], oldUid[1], oldUid[0]);
+	PrintAndLog("new UID : %02X %02X %02X %02X %02X %02X %02X %02X", newUid[7], newUid[6], newUid[5], newUid[4], newUid[3], newUid[2], newUid[1], newUid[0]);
+	return 0;
 }
 
 
-static command_t CommandTable15Cmd[] =
-{
-	{"help",    CmdHF15CmdHelp,    1, "This Help"},
- 	{"inquiry", CmdHF15CmdInquiry, 0, "Search for tags in range"},
+// "HF 15 Cmd" Interface
+// Allows direct communication with the tag on command level
+
+static int CmdHF15CmdHelp(const char*Cmd);
+
+static command_t CommandTable15Cmd[] = {
+	{"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"},
+	{"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"},
-	{"csetuid",	CmdHF15CSetUID,	0,	"Set UID for magic Chinese card"},
-	{"debug",    CmdHF15CmdDebug,    0, "Turn debugging on/off"},
-	{NULL, NULL, 0, NULL}
+	{"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)
-{
+
+static int CmdHF15Cmd(const char *Cmd) {
 	CmdsParse(CommandTable15Cmd, Cmd);
 	return 0;
 }
-	
-int CmdHF15CmdHelp(const char *Cmd)
-{
+
+
+static int CmdHF15CmdHelp(const char *Cmd) {
 	CmdsHelp(CommandTable15Cmd);
 	return 0;
 }
 
+
+// "HF 15" interface
+
+static int CmdHF15Help(const char*Cmd);
+
+static command_t CommandTable15[] = {
+	{"help",       CmdHF15Help,    1, "This help"},
+	{"demod",      CmdHF15Demod,   1, "Demodulate ISO15693 from tag"},
+	{"read",       CmdHF15Read,    0, "Read HF tag (ISO 15693)"},
+	{"snoop",      CmdHF15Snoop,   0, "Eavesdrop ISO 15693 communications"},
+	{"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"},
+	{"csetuid",	   CmdHF15CSetUID, 0, "Set UID for magic Chinese card"},
+	{NULL,         NULL,           0, NULL}
+};
+
+
+int CmdHF15(const char *Cmd) {
+	CmdsParse(CommandTable15, Cmd);
+	return 0;
+}
+
+
+static int CmdHF15Help(const char *Cmd) {
+	CmdsHelp(CommandTable15);
+	return 0;
+}
+
+