]> git.zerfleddert.de Git - proxmark3-svn/blobdiff - client/cmdhf14a.c
fix HitagS simulation erors (issue #605) (#606)
[proxmark3-svn] / client / cmdhf14a.c
index 0298f509416015cadc11e26502fe662a755f3124..4684ae290cca2989142c4112cabd516ed2b3dafb 100644 (file)
@@ -1,5 +1,5 @@
 //-----------------------------------------------------------------------------
-// 2011, Merlok
+// 2011, 2017 Merlok
 // Copyright (C) 2010 iZsh <izsh at fail0verflow.com>, Hagen Fritsch
 //
 // This code is licensed to you under the terms of the GNU GPL, version 2 or,
@@ -9,24 +9,30 @@
 // High frequency ISO14443A commands
 //-----------------------------------------------------------------------------
 
+#include "cmdhf14a.h"
+
 #include <stdio.h>
 #include <stdlib.h>
+#include <inttypes.h>
 #include <string.h>
 #include <unistd.h>
+#include <ctype.h>
 #include "util.h"
+#include "util_posix.h"
 #include "iso14443crc.h"
-#include "data.h"
 #include "proxmark3.h"
 #include "ui.h"
 #include "cmdparser.h"
-#include "cmdhf14a.h"
 #include "common.h"
 #include "cmdmain.h"
 #include "mifare.h"
+#include "cmdhfmfu.h"
+#include "mifarehost.h"
+#include "emv/apduinfo.h"
+#include "emv/emvcore.h"
 
 static int CmdHelp(const char *Cmd);
-static void waitCmd(uint8_t iLen);
-
+static int waitCmd(uint8_t iLen);
 
 // structure and database for uid -> tagtype lookups 
 typedef struct { 
@@ -34,7 +40,7 @@ typedef struct {
        char* desc;
 } manufactureName; 
 
-const manufactureName manufactureMapping[] = {
+static const manufactureName manufactureMapping[] = {
        // ID,  "Vendor Country"
        { 0x01, "Motorola UK" },
        { 0x02, "ST Microelectronics SA France" },
@@ -107,26 +113,20 @@ const manufactureName manufactureMapping[] = {
        { 0x00, "no tag-info available" } // must be the last entry
 };
 
-
 // get a product description based on the UID
 //             uid[8]  tag uid
 // returns description of the best match       
 char* getTagInfo(uint8_t uid) {
 
-       int i, best = -1;       
+       int i;
        int len = sizeof(manufactureMapping) / sizeof(manufactureName);
        
-       for ( i = 0; i < len; ++i ) {
-               if ( uid == manufactureMapping[i].uid) {
-                       if (best == -1) { 
-                               best = i;
-                       } 
-               } 
-       } 
+       for ( i = 0; i < len; ++i ) 
+               if ( uid == manufactureMapping[i].uid) 
+                       return manufactureMapping[i].desc;
 
-       if (best>=0) return manufactureMapping[best].desc;
-       
-       return manufactureMapping[i].desc; 
+       //No match, return default
+       return manufactureMapping[len-1].desc; 
 }
 
 int CmdHF14AList(const char *Cmd)
@@ -135,12 +135,84 @@ int CmdHF14AList(const char *Cmd)
        return 0;
 }
 
-void iso14a_set_timeout(uint32_t timeout) {
-       UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_SET_TIMEOUT, 0, timeout}};
+int CmdHF14AReader(const char *Cmd) {
+       uint32_t cm = ISO14A_CONNECT;
+       bool disconnectAfter = true;
+       
+       int cmdp = 0;
+       while(param_getchar(Cmd, cmdp) != 0x00) {
+               switch(param_getchar(Cmd, cmdp)) {
+               case 'h':
+               case 'H':
+                       PrintAndLog("Usage: hf 14a reader [k|x] [3]");
+                       PrintAndLog("       k    keep the field active after command executed");
+                       PrintAndLog("       x    just drop the signal field");
+                       PrintAndLog("       3    ISO14443-3 select only (skip RATS)");
+                       return 0;
+               case '3':
+                       cm |= ISO14A_NO_RATS; 
+                       break;
+               case 'k':
+               case 'K':
+                       disconnectAfter = false;
+                       break;
+               case 'x':
+               case 'X':
+                       cm &= ~ISO14A_CONNECT;
+                       break;
+               default:
+                       PrintAndLog("Unknown command.");
+                       return 1;
+               }       
+               
+               cmdp++;
+       }
+
+       if (!disconnectAfter)
+               cm |= ISO14A_NO_DISCONNECT; 
+       
+       UsbCommand c = {CMD_READER_ISO_14443a, {cm, 0, 0}};
        SendCommand(&c);
+
+       if (ISO14A_CONNECT & cm) {
+               UsbCommand resp;
+               WaitForResponse(CMD_ACK,&resp);
+               
+               iso14a_card_select_t card;
+               memcpy(&card, (iso14a_card_select_t *)resp.d.asBytes, sizeof(iso14a_card_select_t));
+
+               uint64_t select_status = resp.arg[0];           // 0: couldn't read, 1: OK, with ATS, 2: OK, no ATS, 3: proprietary Anticollision
+               
+               if(select_status == 0) {
+                       PrintAndLog("iso14443a card select failed");
+                       return 1;
+               }
+
+               if(select_status == 3) {
+                       PrintAndLog("Card doesn't support standard iso14443-3 anticollision");
+                       PrintAndLog("ATQA : %02x %02x", card.atqa[1], card.atqa[0]);
+                       return 1;
+               }
+
+               PrintAndLog(" UID : %s", sprint_hex(card.uid, card.uidlen));
+               PrintAndLog("ATQA : %02x %02x", card.atqa[1], card.atqa[0]);
+               PrintAndLog(" SAK : %02x [%" PRIu64 "]", card.sak, resp.arg[0]);
+               if(card.ats_len >= 3) {                 // a valid ATS consists of at least the length byte (TL) and 2 CRC bytes
+                       PrintAndLog(" ATS : %s", sprint_hex(card.ats, card.ats_len));
+               }
+               if (!disconnectAfter) {
+                       PrintAndLog("Card is selected. You can now start sending commands");
+               }
+       }
+
+       if (disconnectAfter) {
+               PrintAndLog("Field dropped.");
+       }
+       
+       return 0;
 }
 
-int CmdHF14AReader(const char *Cmd)
+int CmdHF14AInfo(const char *Cmd)
 {
        UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_CONNECT | ISO14A_NO_DISCONNECT, 0, 0}};
        SendCommand(&c);
@@ -151,10 +223,10 @@ int CmdHF14AReader(const char *Cmd)
        iso14a_card_select_t card;
        memcpy(&card, (iso14a_card_select_t *)resp.d.asBytes, sizeof(iso14a_card_select_t));
 
-       uint64_t select_status = resp.arg[0];           // 0: couldn't read, 1: OK, with ATS, 2: OK, no ATS
+       uint64_t select_status = resp.arg[0];           // 0: couldn't read, 1: OK, with ATS, 2: OK, no ATS, 3: proprietary Anticollision
        
        if(select_status == 0) {
-               PrintAndLog("iso14443a card select failed");
+               if (Cmd[0] != 's') PrintAndLog("iso14443a card select failed");
                // disconnect
                c.arg[0] = 0;
                c.arg[1] = 0;
@@ -163,18 +235,81 @@ int CmdHF14AReader(const char *Cmd)
                return 0;
        }
 
-       PrintAndLog("ATQA : %02x %02x", card.atqa[1], card.atqa[0]);
-       PrintAndLog(" UID : %s", sprint_hex(card.uid, card.uidlen));
-       PrintAndLog(" SAK : %02x [%d]", card.sak, resp.arg[0]);
-
-       // Double & triple sized UID, can be mapped to a manufacturer.
-       // HACK: does this apply for Ultralight cards?
-       if ( card.uidlen > 4 ) {
-               PrintAndLog("MANUFACTURER : %s", getTagInfo(card.uid[0]));
+       if(select_status == 3) {
+               PrintAndLog("Card doesn't support standard iso14443-3 anticollision");
+               PrintAndLog("ATQA : %02x %02x", card.atqa[1], card.atqa[0]);
+               // disconnect
+               c.arg[0] = 0;
+               c.arg[1] = 0;
+               c.arg[2] = 0;
+               SendCommand(&c);
+               return 0;
        }
 
+       PrintAndLog(" UID : %s", sprint_hex(card.uid, card.uidlen));
+       PrintAndLog("ATQA : %02x %02x", card.atqa[1], card.atqa[0]);
+       PrintAndLog(" SAK : %02x [%" PRIu64 "]", card.sak, resp.arg[0]);
+
+       bool isMifareClassic = true;
        switch (card.sak) {
-               case 0x00: PrintAndLog("TYPE : NXP MIFARE Ultralight | Ultralight C"); break;
+               case 0x00: 
+                       isMifareClassic = false;
+
+                       //***************************************test****************
+                       // disconnect
+                       c.arg[0] = 0;
+                       c.arg[1] = 0;
+                       c.arg[2] = 0;
+                       SendCommand(&c);
+                       
+                       uint32_t tagT = GetHF14AMfU_Type();
+                       ul_print_type(tagT, 0);
+
+                       //reconnect for further tests
+                       c.arg[0] = ISO14A_CONNECT | ISO14A_NO_DISCONNECT;
+                       c.arg[1] = 0;
+                       c.arg[2] = 0;
+
+                       SendCommand(&c);
+
+                       UsbCommand resp;
+                       WaitForResponse(CMD_ACK,&resp);
+                       
+                       memcpy(&card, (iso14a_card_select_t *)resp.d.asBytes, sizeof(iso14a_card_select_t));
+
+                       select_status = resp.arg[0];            // 0: couldn't read, 1: OK, with ATS, 2: OK, no ATS
+                       
+                       if(select_status == 0) {
+                               //PrintAndLog("iso14443a card select failed");
+                               // disconnect
+                               c.arg[0] = 0;
+                               c.arg[1] = 0;
+                               c.arg[2] = 0;
+                               SendCommand(&c);
+                               return 0;
+                       }
+
+                       /*  orig
+                       // check if the tag answers to GETVERSION (0x60)
+                       c.arg[0] = ISO14A_RAW | ISO14A_APPEND_CRC | ISO14A_NO_DISCONNECT;
+                       c.arg[1] = 1;
+                       c.arg[2] = 0;
+                       c.d.asBytes[0] = 0x60;
+                       SendCommand(&c);
+                       WaitForResponse(CMD_ACK,&resp);
+
+                       uint8_t version[10] = {0};
+                       memcpy(version, resp.d.asBytes, resp.arg[0] < sizeof(version) ? resp.arg[0] : sizeof(version));
+                       uint8_t len = resp.arg[0] & 0xff;
+                       switch ( len ){
+                               // todo, identify "Magic UL-C tags". // they usually have a static nonce response to 0x1A command.
+                               // UL-EV1, size, check version[6] == 0x0b (smaller)  0x0b * 4 == 48
+                               case 0x0A:PrintAndLog("TYPE : NXP MIFARE Ultralight EV1 %d bytes", (version[6] == 0xB) ? 48 : 128);break;
+                               case 0x01:PrintAndLog("TYPE : NXP MIFARE Ultralight C");break;
+                               case 0x00:PrintAndLog("TYPE : NXP MIFARE Ultralight");break;    
+                       }
+                       */
+                       break;
                case 0x01: PrintAndLog("TYPE : NXP TNP3xxx Activision Game Appliance"); break;
                case 0x04: PrintAndLog("TYPE : NXP MIFARE (various !DESFire !DESFire EV1)"); break;
                case 0x08: PrintAndLog("TYPE : NXP MIFARE CLASSIC 1k | Plus 2k SL1"); break;
@@ -191,6 +326,12 @@ int CmdHF14AReader(const char *Cmd)
                default: ;
        }
 
+       // Double & triple sized UID, can be mapped to a manufacturer.
+       // HACK: does this apply for Ultralight cards?
+       if ( card.uidlen > 4 ) {
+               PrintAndLog("MANUFACTURER : %s", getTagInfo(card.uid[0]));
+       }
+
        // try to request ATS even if tag claims not to support it
        if (select_status == 2) {
                uint8_t rats[] = { 0xE0, 0x80 }; // FSDI=8 (FSD=256), CID=0
@@ -201,7 +342,7 @@ int CmdHF14AReader(const char *Cmd)
                SendCommand(&c);
                WaitForResponse(CMD_ACK,&resp);
                
-           memcpy(&card.ats, resp.d.asBytes, resp.arg[0]);
+           memcpy(card.ats, resp.d.asBytes, resp.arg[0]);
                card.ats_len = resp.arg[0];                             // note: ats_len includes CRC Bytes
        } 
 
@@ -295,16 +436,16 @@ int CmdHF14AReader(const char *Cmd)
                                                PrintAndLog("                     x0 -> <1 kByte");
                                                break;
                                        case 0x01:
-                                               PrintAndLog("                     x0 -> 1 kByte");
+                                               PrintAndLog("                     x1 -> 1 kByte");
                                                break;
                                        case 0x02:
-                                               PrintAndLog("                     x0 -> 2 kByte");
+                                               PrintAndLog("                     x2 -> 2 kByte");
                                                break;
                                        case 0x03:
-                                               PrintAndLog("                     x0 -> 4 kByte");
+                                               PrintAndLog("                     x3 -> 4 kByte");
                                                break;
                                        case 0x04:
-                                               PrintAndLog("                     x0 -> 8 kByte");
+                                               PrintAndLog("                     x4 -> 8 kByte");
                                                break;
                                }
                                switch (card.ats[pos + 3] & 0xf0) {
@@ -345,22 +486,21 @@ int CmdHF14AReader(const char *Cmd)
 
        
        // try to see if card responses to "chinese magic backdoor" commands.
-       c.cmd = CMD_MIFARE_CIDENT;
-       c.arg[0] = 0;
-       c.arg[1] = 0;
-       c.arg[2] = 0;   
-       SendCommand(&c);
-       WaitForResponse(CMD_ACK,&resp);
-       uint8_t isOK  = resp.arg[0] & 0xff;
-       PrintAndLog(" Answers to chinese magic backdoor commands: %s", (isOK ? "YES" : "NO") );
+       mfCIdentify();
+       
+       if (isMifareClassic) {          
+               switch(DetectClassicPrng()) {
+               case 0:
+                       PrintAndLog("Prng detection: HARDEND (hardnested)");            
+                       break;
+               case 1:
+                       PrintAndLog("Prng detection: WEAK");
+                       break;
+               default:
+                       PrintAndLog("Prng detection error.");           
+               }
+       }
        
-       // disconnect
-       c.cmd = CMD_READER_ISO_14443a;
-       c.arg[0] = 0;
-       c.arg[1] = 0;
-       c.arg[2] = 0;
-       SendCommand(&c);
-
        return select_status;
 }
 
@@ -373,11 +513,11 @@ int CmdHF14ACUIDs(const char *Cmd)
        n = n > 0 ? n : 1;
 
        PrintAndLog("Collecting %d UIDs", n);
-       PrintAndLog("Start: %u", time(NULL));
+       PrintAndLog("Start: %" PRIu64, msclock()/1000);
        // repeat n times
        for (int i = 0; i < n; i++) {
                // execute anticollision procedure
-               UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_CONNECT, 0, 0}};
+               UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_CONNECT | ISO14A_NO_RATS, 0, 0}};
                SendCommand(&c);
     
                UsbCommand resp;
@@ -396,7 +536,7 @@ int CmdHF14ACUIDs(const char *Cmd)
                        PrintAndLog("%s", uid_string);
                }
        }
-       PrintAndLog("End: %u", time(NULL));
+       PrintAndLog("End: %" PRIu64, msclock()/1000);
 
        return 1;
 }
@@ -418,9 +558,9 @@ int CmdHF14ASim(const char *Cmd)
                PrintAndLog("   syntax: hf 14a sim <type> <uid>");
                PrintAndLog("    types: 1 = MIFARE Classic");
                PrintAndLog("           2 = MIFARE Ultralight");
-               PrintAndLog("           3 = MIFARE DESFIRE");
+               PrintAndLog("           3 = MIFARE Desfire");
                PrintAndLog("           4 = ISO/IEC 14443-4");
-               PrintAndLog("           5 = MIFARE TNP3XXX");           
+               PrintAndLog("           5 = MIFARE Tnp3xxx");           
                PrintAndLog("");
                return 1;
        }
@@ -433,7 +573,7 @@ int CmdHF14ASim(const char *Cmd)
 
        // Are we handling the (optional) second part uid?
        if (long_uid > 0xffffffff) {
-               PrintAndLog("Emulating ISO/IEC 14443 type A tag with 7 byte UID (%014"llx")",long_uid);
+               PrintAndLog("Emulating ISO/IEC 14443 type A tag with 7 byte UID (%014" PRIx64 ")",long_uid);
                // Store the second part
                c.arg[2] = (long_uid & 0xffffffff);
                long_uid >>= 32;
@@ -486,7 +626,8 @@ int CmdHF14ASim(const char *Cmd)
 int CmdHF14ASnoop(const char *Cmd) {
        int param = 0;
        
-       if (param_getchar(Cmd, 0) == 'h') {
+       uint8_t ctmp = param_getchar(Cmd, 0) ;
+       if (ctmp == 'h' || ctmp == 'H') {
                PrintAndLog("It get data from the field and saves it into command buffer.");
                PrintAndLog("Buffer accessible from command hf list 14a.");
                PrintAndLog("Usage:  hf 14a snoop [c][r]");
@@ -497,140 +638,367 @@ int CmdHF14ASnoop(const char *Cmd) {
        }       
        
        for (int i = 0; i < 2; i++) {
-               char ctmp = param_getchar(Cmd, i);
+               ctmp = param_getchar(Cmd, i);
                if (ctmp == 'c' || ctmp == 'C') param |= 0x01;
                if (ctmp == 'r' || ctmp == 'R') param |= 0x02;
        }
 
-  UsbCommand c = {CMD_SNOOP_ISO_14443a, {param, 0, 0}};
-  SendCommand(&c);
-  return 0;
+       UsbCommand c = {CMD_SNOOP_ISO_14443a, {param, 0, 0}};
+       SendCommand(&c);
+       return 0;
 }
 
-int CmdHF14ACmdRaw(const char *cmd) {
-    UsbCommand c = {CMD_READER_ISO_14443a, {0, 0, 0}};
-    uint8_t reply=1;
-    uint8_t crc=0;
-    uint8_t power=0;
-    uint8_t active=0;
-    uint8_t active_select=0;
-    uint16_t numbits=0;
-    char buf[5]="";
-    int i=0;
-    uint8_t data[100];
-    unsigned int datalen=0, temp;
-
-    if (strlen(cmd)<2) {
-        PrintAndLog("Usage: hf 14a raw [-r] [-c] [-p] [-f] [-b] <number of bits> <0A 0B 0C ... hex>");
-        PrintAndLog("       -r    do not read response");
-        PrintAndLog("       -c    calculate and append CRC");
-        PrintAndLog("       -p    leave the signal field ON after receive");
-        PrintAndLog("       -a    active signal field ON without select");
-        PrintAndLog("       -s    active signal field ON with select");
-        PrintAndLog("       -b    number of bits to send. Useful for send partial byte");
-        return 0;
-    }
+void DropField() {
+       UsbCommand c = {CMD_READER_ISO_14443a, {0, 0, 0}}; 
+       SendCommand(&c);
+}
 
-    // 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': 
-                    reply=0;
-                    break;
-                case 'c':
-                    crc=1;
-                    break;
-                case 'p':
-                    power=1;
-                    break;
-                case 'a':
-                    active=1;
-                    break;
-                case 's':
-                    active_select=1;
-                    break;
-                case 'b': 
-                    sscanf(cmd+i+2,"%d",&temp);
-                    numbits = temp & 0xFFFF;
-                    i+=3;
-                    while(cmd[i]!=' ' && cmd[i]!='\0') { i++; }
-                    i-=2;
-                    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>0)
-    {
-        uint8_t first, second;
-        ComputeCrc14443(CRC_14443_A, data, datalen, &first, &second);
-        data[datalen++] = first;
-        data[datalen++] = second;
-    }
+int ExchangeAPDU14a(uint8_t *datain, int datainlen, bool activateField, bool leaveSignalON, uint8_t *dataout, int maxdataoutlen, int *dataoutlen) {
+       uint16_t cmdc = 0;
+       
+       if (activateField) {
+               cmdc |= ISO14A_CONNECT | ISO14A_CLEAR_TRACE;
+       }
+       if (leaveSignalON)
+               cmdc |= ISO14A_NO_DISCONNECT;
+
+       // "Command APDU" length should be 5+255+1, but javacard's APDU buffer might be smaller - 133 bytes
+       // https://stackoverflow.com/questions/32994936/safe-max-java-card-apdu-data-command-and-respond-size
+       // here length USB_CMD_DATA_SIZE=512
+       // timeout must be authomatically set by "get ATS"
+       UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_APDU | cmdc, (datainlen & 0xFFFF), 0}}; 
+       memcpy(c.d.asBytes, datain, datainlen);
+       SendCommand(&c);
+       
+    uint8_t *recv;
+    UsbCommand resp;
+
+       if (activateField) {
+               if (!WaitForResponseTimeout(CMD_ACK, &resp, 1500)) {
+                       PrintAndLog("APDU ERROR: Proxmark connection timeout.");
+                       return 1;
+               }
+               if (resp.arg[0] != 1) {
+                       PrintAndLog("APDU ERROR: Proxmark error %d.", resp.arg[0]);
+                       return 1;
+               }
+       }
 
-    if(active || active_select)
-    {
-        c.arg[0] |= ISO14A_CONNECT;
-        if(active)
-            c.arg[0] |= ISO14A_NO_SELECT;
+    if (WaitForResponseTimeout(CMD_ACK, &resp, 1500)) {
+        recv = resp.d.asBytes;
+        int iLen = resp.arg[0];
+               
+               *dataoutlen = iLen - 2;
+               if (*dataoutlen < 0)
+                       *dataoutlen = 0;
+               
+               if (maxdataoutlen && *dataoutlen > maxdataoutlen) {
+                       PrintAndLog("APDU ERROR: Buffer too small(%d). Needs %d bytes", *dataoutlen, maxdataoutlen);
+                       return 2;
+               }
+               
+               memcpy(dataout, recv, *dataoutlen);
+               
+        if(!iLen) {
+                       PrintAndLog("APDU ERROR: No APDU response.");
+            return 1;
+               }
+
+               // check block TODO
+               if (iLen == -2) {
+                       PrintAndLog("APDU ERROR: Block type mismatch.");
+                       return 2;
+               }
+               
+               // CRC Check
+               if (iLen == -1) {
+                       PrintAndLog("APDU ERROR: ISO 14443A CRC error.");
+                       return 3;
+               }
+
+               // check apdu length
+               if (iLen < 4) {
+                       PrintAndLog("APDU ERROR: Small APDU response. Len=%d", iLen);
+                       return 2;
+               }
+               
+    } else {
+        PrintAndLog("APDU ERROR: Reply timeout.");
+               return 4;
     }
-    if(power)
-        c.arg[0] |= ISO14A_NO_DISCONNECT;
-    if(datalen>0)
-        c.arg[0] |= ISO14A_RAW;
-
-    c.arg[1] = datalen;
-    c.arg[2] = numbits;
-    memcpy(c.d.asBytes,data,datalen);
-
-    SendCommand(&c);
-
-    if (reply) {
-        if(active_select)
-            waitCmd(1);
-        if(datalen>0)
-            waitCmd(0);
-    } // if reply
-    return 0;
+       
+       return 0;
 }
 
-static void waitCmd(uint8_t iSelect)
-{
+// ISO14443-4. 7. Half-duplex block transmission protocol
+int CmdHF14AAPDU(const char *cmd) {
+       uint8_t data[USB_CMD_DATA_SIZE];
+       int datalen = 0;
+       bool activateField = false;
+       bool leaveSignalON = false;
+       bool decodeTLV = false;
+       
+       if (strlen(cmd) < 2) {
+               PrintAndLog("Usage: hf 14a apdu [-s] [-k] [-t] <APDU (hex)>");
+               PrintAndLog("Command sends an ISO 7816-4 APDU via ISO 14443-4 block transmission protocol (T=CL)");
+               PrintAndLog("       -s    activate field and select card");
+               PrintAndLog("       -k    leave the signal field ON after receive response");
+               PrintAndLog("       -t    executes TLV decoder if it possible. TODO!!!!");
+               return 0;
+       }
+
+       int cmdp = 0;
+       while(param_getchar(cmd, cmdp) != 0x00) {
+               char c = param_getchar(cmd, cmdp);
+               if ((c == '-') && (param_getlength(cmd, cmdp) == 2))
+                       switch (param_getchar_indx(cmd, 1, cmdp)) {
+                               case 's':
+                               case 'S':
+                                       activateField = true;
+                                       break;
+                               case 'k':
+                               case 'K':
+                                       leaveSignalON = true;
+                                       break;
+                               case 't':
+                               case 'T':
+                                       decodeTLV = true;
+                                       break;
+                               default:
+                                       PrintAndLog("Unknown parameter '%c'", param_getchar_indx(cmd, 1, cmdp));
+                                       return 1;
+                       }
+                       
+               if (isxdigit((unsigned char)c)) {
+                       // len = data + PCB(1b) + CRC(2b)
+                       switch(param_gethex_to_eol(cmd, cmdp, data, sizeof(data) - 1 - 2, &datalen)) {
+                       case 1:
+                               PrintAndLog("Invalid HEX value.");
+                               return 1;
+                       case 2:
+                               PrintAndLog("APDU too large.");
+                               return 1;
+                       case 3:
+                               PrintAndLog("Hex must have even number of digits.");
+                               return 1;
+                       }
+                       
+                       // we get all the hex to end of line with spaces
+                       break;
+               }
+               
+               cmdp++;
+       }
+
+       PrintAndLog(">>>>[%s%s%s] %s", activateField ? "sel ": "", leaveSignalON ? "keep ": "", decodeTLV ? "TLV": "", sprint_hex(data, datalen));
+       
+       int res = ExchangeAPDU14a(data, datalen, activateField, leaveSignalON, data, USB_CMD_DATA_SIZE, &datalen);
+
+       if (res)
+               return res;
+
+       PrintAndLog("<<<< %s", sprint_hex(data, datalen));
+       
+       PrintAndLog("APDU response: %02x %02x - %s", data[datalen - 2], data[datalen - 1], GetAPDUCodeDescription(data[datalen - 2], data[datalen - 1])); 
+
+       // TLV decoder
+       if (decodeTLV && datalen > 4) {
+               TLVPrintFromBuffer(data, datalen - 2);
+       }
+       
+       return 0;
+}
+
+int CmdHF14ACmdRaw(const char *cmd) {
+       UsbCommand c = {CMD_READER_ISO_14443a, {0, 0, 0}};
+       bool reply=1;
+       bool crc = false;
+       bool power = false;
+       bool active = false;
+       bool active_select = false;
+       bool no_rats = false;
+       uint16_t numbits = 0;
+       bool bTimeout = false;
+       uint32_t timeout = 0;
+       bool topazmode = false;
+       char buf[5]="";
+       int i = 0;
+       uint8_t data[USB_CMD_DATA_SIZE];
+       uint16_t datalen = 0;
+       uint32_t temp;
+
+       if (strlen(cmd)<2) {
+               PrintAndLog("Usage: hf 14a raw [-r] [-c] [-p] [-f] [-b] [-t] <number of bits> <0A 0B 0C ... hex>");
+               PrintAndLog("       -r    do not read response");
+               PrintAndLog("       -c    calculate and append CRC");
+               PrintAndLog("       -p    leave the signal field ON after receive");
+               PrintAndLog("       -a    active signal field ON without select");
+               PrintAndLog("       -s    active signal field ON with select");
+               PrintAndLog("       -b    number of bits to send. Useful for send partial byte");
+               PrintAndLog("       -t    timeout in ms");
+               PrintAndLog("       -T    use Topaz protocol to send command");
+               PrintAndLog("       -3    ISO14443-3 select only (skip RATS)");
+               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': 
+                                       reply = false;
+                                       break;
+                               case 'c':
+                                       crc = true;
+                                       break;
+                               case 'p':
+                                       power = true;
+                                       break;
+                               case 'a':
+                                       active = true;
+                                       break;
+                               case 's':
+                                       active_select = true;
+                                       break;
+                               case 'b': 
+                                       sscanf(cmd+i+2,"%d",&temp);
+                                       numbits = temp & 0xFFFF;
+                                       i+=3;
+                                       while(cmd[i]!=' ' && cmd[i]!='\0') { i++; }
+                                       i-=2;
+                                       break;
+                               case 't':
+                                       bTimeout = true;
+                                       sscanf(cmd+i+2,"%d",&temp);
+                                       timeout = temp;
+                                       i+=3;
+                                       while(cmd[i]!=' ' && cmd[i]!='\0') { i++; }
+                                       i-=2;
+                                       break;
+                               case 'T':
+                                       topazmode = true;
+                                       break;
+                               case '3':
+                                       no_rats = true;
+                                       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);
+                               *buf=0;
+                               if (datalen > sizeof(data)-1) {
+                                       if (crc)
+                                               PrintAndLog("Buffer is full, we can't add CRC to your data");
+                                       break;
+                               } else {
+                                       datalen++;
+                               }
+                       }
+                       continue;
+               }
+               PrintAndLog("Invalid char on input");
+               return 0;
+       }
+
+       if(crc && datalen>0 && datalen<sizeof(data)-2)
+       {
+               uint8_t first, second;
+               if (topazmode) {
+                       ComputeCrc14443(CRC_14443_B, data, datalen, &first, &second);
+               } else {
+                       ComputeCrc14443(CRC_14443_A, data, datalen, &first, &second);
+               }
+               data[datalen++] = first;
+               data[datalen++] = second;
+       }
+
+       if(active || active_select)
+       {
+               c.arg[0] |= ISO14A_CONNECT | ISO14A_CLEAR_TRACE;
+               if(active)
+                       c.arg[0] |= ISO14A_NO_SELECT;
+       }
+
+       if(bTimeout){
+               #define MAX_TIMEOUT 40542464    // = (2^32-1) * (8*16) / 13560000Hz * 1000ms/s
+               c.arg[0] |= ISO14A_SET_TIMEOUT;
+               if(timeout > MAX_TIMEOUT) {
+                       timeout = MAX_TIMEOUT;
+                       PrintAndLog("Set timeout to 40542 seconds (11.26 hours). The max we can wait for response");
+               }
+               c.arg[2] = 13560000 / 1000 / (8*16) * timeout; // timeout in ETUs (time to transfer 1 bit, approx. 9.4 us)
+       }
+
+       if(power) {
+               c.arg[0] |= ISO14A_NO_DISCONNECT;
+       }
+
+       if(datalen > 0) {
+               c.arg[0] |= ISO14A_RAW;
+       }
+
+       if(topazmode) {
+               c.arg[0] |= ISO14A_TOPAZMODE;
+       }
+
+       if(no_rats) {
+               c.arg[0] |= ISO14A_NO_RATS;
+       }
+
+       // Max buffer is USB_CMD_DATA_SIZE (512)
+       c.arg[1] = (datalen & 0xFFFF) | ((uint32_t)numbits << 16);
+       memcpy(c.d.asBytes,data,datalen);
+
+       SendCommand(&c);
+
+       if (reply) {
+               int res = 0;
+               if (active_select)
+                       res = waitCmd(1);
+               if (!res && datalen > 0)
+                       waitCmd(0);
+       } // if reply
+       return 0;
+}
+
+
+static int waitCmd(uint8_t iSelect) {
     uint8_t *recv;
     UsbCommand resp;
     char *hexout;
 
     if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
         recv = resp.d.asBytes;
-        uint8_t iLen = iSelect ? resp.arg[1] : resp.arg[0];
-        PrintAndLog("received %i octets",iLen);
+        uint8_t iLen = resp.arg[0];
+               if (iSelect){
+                       iLen = resp.arg[1];
+                       if (iLen){
+                               PrintAndLog("Card selected. UID[%i]:", iLen);
+                       } else {
+                               PrintAndLog("Can't select card.");
+                       }
+               } else {
+                       PrintAndLog("received %i bytes:", iLen);
+               }
         if(!iLen)
-            return;
+            return 1;
         hexout = (char *)malloc(iLen * 3 + 1);
         if (hexout != NULL) {
             for (int i = 0; i < iLen; i++) { // data in hex
@@ -640,20 +1008,25 @@ static void waitCmd(uint8_t iSelect)
             free(hexout);
         } else {
             PrintAndLog("malloc failed your client has low memory?");
+                       return 2;
         }
     } else {
         PrintAndLog("timeout while waiting for reply.");
+               return 3;
     }
+       return 0;
 }
 
 static command_t CommandTable[] = 
 {
   {"help",   CmdHelp,              1, "This help"},
   {"list",   CmdHF14AList,         0, "[Deprecated] List ISO 14443a history"},
-  {"reader", CmdHF14AReader,       0, "Act like an ISO14443 Type A reader"},
+  {"reader", CmdHF14AReader,       0, "Start acting like an ISO14443 Type A reader"},
+  {"info",   CmdHF14AInfo,         0, "Reads card and shows information about it"},
   {"cuids",  CmdHF14ACUIDs,        0, "<n> Collect n>0 ISO14443 Type A UIDs in one go"},
-  {"sim",    CmdHF14ASim,          0, "<UID> -- Fake ISO 14443a tag"},
+  {"sim",    CmdHF14ASim,          0, "<UID> -- Simulate ISO 14443a tag"},
   {"snoop",  CmdHF14ASnoop,        0, "Eavesdrop ISO 14443 Type A"},
+  {"apdu",   CmdHF14AAPDU,         0, "Send an ISO 7816-4 APDU via ISO 14443-4 block transmission protocol"},
   {"raw",    CmdHF14ACmdRaw,       0, "Send raw hex data to tag"},
   {NULL, NULL, 0, NULL}
 };
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