CHG: fixes to match the new arguments to the darkside attack (keytype A|B and blockn...

[proxmark3-svn] / client / cmdhf14a.c

diff --git a/client/cmdhf14a.c b/client/cmdhf14a.c
index 534444fd9551fa4ff431ec09cf16f5c9e113c213..9f40e754f26aae0dc8a358200b5ddbc82667acc2 100644 (file)
--- a/client/cmdhf14a.c
+++ b/client/cmdhf14a.c
@@ -23,188 +23,249 @@
 #include "common.h"
 #include "cmdmain.h"
 #include "mifare.h"
 #include "common.h"
 #include "cmdmain.h"
 #include "mifare.h"

+#include "cmdhfmf.h"
+#include "cmdhfmfu.h"
+#include "nonce2key/nonce2key.h"
+#include "cmdhf.h"

 
 static int CmdHelp(const char *Cmd);
 static void waitCmd(uint8_t iLen);
 
 
 static int CmdHelp(const char *Cmd);
 static void waitCmd(uint8_t iLen);
 

-int CmdHF14AList(const char *Cmd)
-{
-       bool ShowWaitCycles = false;
-       char param = param_getchar(Cmd, 0);
-       
-       if (param == 'h' || (param != 0 && param != 'f')) {
-               PrintAndLog("List data in trace buffer.");
-               PrintAndLog("Usage:  hf 14a list [f]");
-               PrintAndLog("f - show frame delay times as well");
-               PrintAndLog("sample: hf 14a list f");
-               return 0;
-       }       
-
-       if (param == 'f') {
-               ShowWaitCycles = true;
-       }
-               
-       uint8_t got[1920];
-       GetFromBigBuf(got,sizeof(got),0);
-       WaitForResponse(CMD_ACK,NULL);
-
-       PrintAndLog("Recorded Activity");
-       PrintAndLog("");
-       PrintAndLog("Start = Start of Start Bit, End = End of last modulation. Src = Source of Transfer");
-       PrintAndLog("All times are in carrier periods (1/13.56Mhz)");
-       PrintAndLog("");
-       PrintAndLog("     Start |       End | Src | Data");
-       PrintAndLog("-----------|-----------|-----|--------");
-
-       int i = 0;
-       uint32_t first_timestamp = 0;
-       uint32_t timestamp;
-       uint32_t EndOfTransmissionTimestamp = 0;
-       
-       for (;;) {
-               if(i >= 1900) {
-                       break;
-               }
-
-               bool isResponse;
-               timestamp = *((uint32_t *)(got+i));
-               if (timestamp & 0x80000000) {
-                 timestamp &= 0x7fffffff;
-                 isResponse = true;
-               } else {
-                 isResponse = false;
-               }
-
-               if(i==0) {
-                       first_timestamp = timestamp;
-               }
-               
-               int parityBits = *((uint32_t *)(got+i+4));
-
-               int len = got[i+8];
-
-               if (len > 100) {
-                       break;
-               }
-               if (i + len >= 1900) {
-                       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[2] == 0x44 && frame[3] == 0x44) break; 
-
-               char line[1000] = "";
-               int j;
-               if (len) {
-                       for (j = 0; j < len; j++) {
-                               int oddparity = 0x01;
-                               int k;
+// structure and database for uid -> tagtype lookups 
+typedef struct { 
+       uint8_t uid;
+       char* desc;
+} manufactureName; 
+
+const manufactureName manufactureMapping[] = {
+       // ID,  "Vendor Country"
+       { 0x01, "Motorola UK" },
+       { 0x02, "ST Microelectronics SA France" },
+       { 0x03, "Hitachi, Ltd Japan" }, 
+       { 0x04, "NXP Semiconductors Germany" }, 
+       { 0x05, "Infineon Technologies AG Germany" }, 
+       { 0x06, "Cylink USA" }, 
+       { 0x07, "Texas Instrument France" },
+       { 0x08, "Fujitsu Limited Japan" }, 
+       { 0x09, "Matsushita Electronics Corporation, Semiconductor Company Japan" }, 
+       { 0x0A, "NEC Japan" }, 
+       { 0x0B, "Oki Electric Industry Co. Ltd Japan" },
+       { 0x0C, "Toshiba Corp. Japan" },
+       { 0x0D, "Mitsubishi Electric Corp. Japan" },
+       { 0x0E, "Samsung Electronics Co. Ltd Korea" },
+       { 0x0F, "Hynix / Hyundai, Korea" },
+       { 0x10, "LG-Semiconductors Co. Ltd Korea" },
+       { 0x11, "Emosyn-EM Microelectronics USA" },
+       { 0x12, "INSIDE Technology France" },
+       { 0x13, "ORGA Kartensysteme GmbH Germany" },
+       { 0x14, "SHARP Corporation Japan" },
+       { 0x15, "ATMEL France" },
+       { 0x16, "EM Microelectronic-Marin SA Switzerland" },
+       { 0x17, "KSW Microtec GmbH Germany" },
+       { 0x18, "ZMD AG Germany" },
+       { 0x19, "XICOR, Inc. USA" },
+       { 0x1A, "Sony Corporation Japan Identifier Company Country" },
+       { 0x1B, "Malaysia Microelectronic Solutions Sdn. Bhd Malaysia" },
+       { 0x1C, "Emosyn USA" },
+       { 0x1D, "Shanghai Fudan Microelectronics Co. Ltd. P.R. China" },
+       { 0x1E, "Magellan Technology Pty Limited Australia" },
+       { 0x1F, "Melexis NV BO Switzerland" },
+       { 0x20, "Renesas Technology Corp. Japan" },
+       { 0x21, "TAGSYS France" },
+       { 0x22, "Transcore USA" },
+       { 0x23, "Shanghai belling corp., ltd. China" },
+       { 0x24, "Masktech Germany Gmbh Germany" },
+       { 0x25, "Innovision Research and Technology Plc UK" },
+       { 0x26, "Hitachi ULSI Systems Co., Ltd. Japan" },
+       { 0x27, "Cypak AB Sweden" },
+       { 0x28, "Ricoh Japan" },
+       { 0x29, "ASK France" },
+       { 0x2A, "Unicore Microsystems, LLC Russian Federation" },
+       { 0x2B, "Dallas Semiconductor/Maxim USA" },
+       { 0x2C, "Impinj, Inc. USA" },
+       { 0x2D, "RightPlug Alliance USA" },
+       { 0x2E, "Broadcom Corporation USA" },
+       { 0x2F, "MStar Semiconductor, Inc Taiwan, ROC" },
+       { 0x30, "BeeDar Technology Inc. USA" },
+       { 0x31, "RFIDsec Denmark" },
+       { 0x32, "Schweizer Electronic AG Germany" },
+       { 0x33, "AMIC Technology Corp Taiwan" }, 
+       { 0x34, "Mikron JSC Russia" },
+       { 0x35, "Fraunhofer Institute for Photonic Microsystems Germany" },
+       { 0x36, "IDS Microchip AG Switzerland" },
+       { 0x37, "Kovio USA" },
+       { 0x38, "HMT Microelectronic Ltd Switzerland Identifier Company Country" },
+       { 0x39, "Silicon Craft Technology Thailand" },
+       { 0x3A, "Advanced Film Device Inc. Japan" },
+       { 0x3B, "Nitecrest Ltd UK" },
+       { 0x3C, "Verayo Inc. USA" },
+       { 0x3D, "HID Global USA" },
+       { 0x3E, "Productivity Engineering Gmbh Germany" },
+       { 0x3F, "Austriamicrosystems AG (reserved) Austria" }, 
+       { 0x40, "Gemalto SA France" },
+       { 0x41, "Renesas Electronics Corporation Japan" },
+       { 0x42, "3Alogics Inc Korea" },
+       { 0x43, "Top TroniQ Asia Limited Hong Kong" },
+       { 0x44, "Gentag Inc (USA) USA" },
+       { 0x00, "no tag-info available" } // must be the last entry
+};

 
 

-                               for (k=0;k<8;k++) {
-                                       oddparity ^= (((frame[j] & 0xFF) >> k) & 0x01);
-                               }

 
 

-                               //if((parityBits >> (len - j - 1)) & 0x01) {
-                               if (isResponse && (oddparity != ((parityBits >> (len - j - 1)) & 0x01))) {
-                                       sprintf(line+(j*4), "%02x!  ", frame[j]);
-                               } else {
-                                       sprintf(line+(j*4), "%02x   ", frame[j]);
-                               }
-                       }
-               } else {
-                       if (ShowWaitCycles) {
-                               uint32_t next_timestamp = (*((uint32_t *)(got+i+9))) & 0x7fffffff;
-                               sprintf(line, "fdt (Frame Delay Time): %d", (next_timestamp - timestamp));
-                       }
-               }
+// get a product description based on the UID
+//             uid[8]  tag uid
+// returns description of the best match       
+char* getTagInfo(uint8_t uid) {

 
 

-               char *crc;
-               crc = "";
-               if (len > 2) {
-                       uint8_t b1, b2;
-                       for (j = 0; j < (len - 1); j++) {
-                               // gives problems... search for the reason..
-                               /*if(frame[j] == 0xAA) {
-                                       switch(frame[j+1]) {
-                                               case 0x01:
-                                                       crc = "[1] Two drops close after each other";
-                                                       break;
-                                               case 0x02:
-                                                       crc = "[2] Potential SOC with a drop in second half of bitperiod";
-                                                       break;
-                                               case 0x03:
-                                                       crc = "[3] Segment Z after segment X is not possible";
-                                                       break;
-                                               case 0x04:
-                                                       crc = "[4] Parity bit of a fully received byte was wrong";
-                                                       break;
-                                               default:
-                                                       crc = "[?] Unknown error";
-                                                       break;
-                                       }
-                                       break;
-                               }*/
-                       }
-
-                       if (strlen(crc)==0) {
-                               ComputeCrc14443(CRC_14443_A, frame, len-2, &b1, &b2);
-                               if (b1 != frame[len-2] || b2 != frame[len-1]) {
-                                       crc = (isResponse & (len < 6)) ? "" : " !crc";
-                               } else {
-                                       crc = "";
-                               }
-                       }
-               } else {
-                       crc = ""; // SHORT
-               }
-
-               i += (len + 9);
+       int i;
+       int len = sizeof(manufactureMapping) / sizeof(manufactureName);
+       
+       for ( i = 0; i < len; ++i ) 
+               if ( uid == manufactureMapping[i].uid) 
+                       return manufactureMapping[i].desc;

 
 

-               EndOfTransmissionTimestamp = (*((uint32_t *)(got+i))) & 0x7fffffff;
-               
-               if (!ShowWaitCycles) i += 9;
-               
-               PrintAndLog(" %9d | %9d | %s | %s %s",
-                       (timestamp - first_timestamp),
-                       (EndOfTransmissionTimestamp - first_timestamp),
-                       (len?(isResponse ? "Tag" : "Rdr"):"   "),
-                       line, crc);
+       //No match, return default
+       return manufactureMapping[len-1].desc; 
+}

 
 

-       }
+int usage_hf_14a_sim(void) {
+//     PrintAndLog("\n Emulating ISO/IEC 14443 type A tag with 4,7 or 10 byte UID\n");
+       PrintAndLog("\n Emulating ISO/IEC 14443 type A tag with 4,7 byte UID\n");
+       PrintAndLog("Usage: hf 14a sim t <type> u <uid> x");
+       PrintAndLog("  Options : ");
+       PrintAndLog("    h     : this help");
+       PrintAndLog("    t     : 1 = MIFARE Classic");
+       PrintAndLog("            2 = MIFARE Ultralight");
+       PrintAndLog("            3 = MIFARE Desfire");
+       PrintAndLog("            4 = ISO/IEC 14443-4");
+       PrintAndLog("            5 = MIFARE Tnp3xxx");
+       PrintAndLog("            6 = MIFARE Mini");
+       PrintAndLog("            7 = AMIIBO (NTAG 215),  pack 0x8080");
+//     PrintAndLog("    u     : 4, 7 or 10 byte UID");
+       PrintAndLog("    u     : 4, 7 byte UID");
+       PrintAndLog("    x     : (Optional) performs the 'reader attack', nr/ar attack against a legitimate reader");
+       PrintAndLog("\n   sample : hf 14a sim t 1 u 11223344 x");
+       PrintAndLog("          : hf 14a sim t 1 u 11223344");
+       PrintAndLog("          : hf 14a sim t 1 u 11223344556677");
+//     PrintAndLog("          : hf 14a sim t 1 u 11223445566778899AA\n");
+       return 0;
+}
+int usage_hf_14a_sniff(void){
+       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 sniff [c][r]");
+       PrintAndLog("c - triggered by first data from card");
+       PrintAndLog("r - triggered by first 7-bit request from reader (REQ,WUP,...)");
+       PrintAndLog("sample: hf 14a sniff c r");
+       return 0;
+}
+int usage_hf_14a_raw(void){
+       PrintAndLog("Usage: hf 14a raw [-h] [-r] [-c] [-p] [-a] [-T] [-t] <milliseconds> [-b] <number of bits>  <0A 0B 0C ... hex>");
+       PrintAndLog("       -h    this help");
+       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");

        return 0;
 }
 
        return 0;
 }
 

-void iso14a_set_timeout(uint32_t timeout) {
-       UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_SET_TIMEOUT, 0, timeout}};
-       SendCommand(&c);
+int CmdHF14AList(const char *Cmd) {
+       //PrintAndLog("Deprecated command, use 'hf list 14a' instead");
+       CmdHFList("14a");
+       return 0;

 }
 
 }
 

-int CmdHF14AReader(const char *Cmd)
-{
+int CmdHF14AReader(const char *Cmd) {

        UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_CONNECT | ISO14A_NO_DISCONNECT, 0, 0}};
        UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_CONNECT | ISO14A_NO_DISCONNECT, 0, 0}};

+       clearCommandBuffer();

        SendCommand(&c);
        SendCommand(&c);

-

        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));
 
        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];
+       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) {
        
        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;
+               c.arg[2] = 0;
+               SendCommand(&c);
+               return 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;
        }
 
                return 0;
        }
 

-       PrintAndLog("ATQA : %02x %02x", card.atqa[1], card.atqa[0]);

        PrintAndLog(" UID : %s", sprint_hex(card.uid, card.uidlen));
        PrintAndLog(" UID : %s", sprint_hex(card.uid, card.uidlen));

+       PrintAndLog("ATQA : %02x %02x", card.atqa[1], card.atqa[0]);

        PrintAndLog(" SAK : %02x [%d]", card.sak, resp.arg[0]);
 
        switch (card.sak) {
        PrintAndLog(" SAK : %02x [%d]", card.sak, resp.arg[0]);
 
        switch (card.sak) {

-               case 0x00: PrintAndLog("TYPE : NXP MIFARE Ultralight | Ultralight C"); break;
+               case 0x00: 
+
+                       //***************************************test****************
+                       ul_switch_off_field();
+                       
+                       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;
+
+                       clearCommandBuffer();
+                       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) {
+                               ul_switch_off_field();
+                               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;
                case 0x09: PrintAndLog("TYPE : NXP MIFARE Mini 0.3k"); break;
                case 0x04: PrintAndLog("TYPE : NXP MIFARE (various !DESFire !DESFire EV1)"); break;
                case 0x08: PrintAndLog("TYPE : NXP MIFARE CLASSIC 1k | Plus 2k SL1"); break;
                case 0x09: PrintAndLog("TYPE : NXP MIFARE Mini 0.3k"); break;


@@ -220,6 +281,10 @@ int CmdHF14AReader(const char *Cmd)
                default: ;
        }
 
                default: ;
        }
 

+       // Double & triple sized UID, can be mapped to a manufacturer.
+       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) {
        
        // try to request ATS even if tag claims not to support it
        if (select_status == 2) {


@@ -228,42 +293,44 @@ int CmdHF14AReader(const char *Cmd)
                c.arg[1] = 2;
                c.arg[2] = 0;
                memcpy(c.d.asBytes, rats, 2);
                c.arg[1] = 2;
                c.arg[2] = 0;
                memcpy(c.d.asBytes, rats, 2);

+               clearCommandBuffer();

                SendCommand(&c);
                WaitForResponse(CMD_ACK,&resp);
                
                SendCommand(&c);
                WaitForResponse(CMD_ACK,&resp);
                

-           memcpy(&card.ats, resp.d.asBytes, resp.arg[0]);
-               card.ats_len = resp.arg[0];
+           memcpy(card.ats, resp.d.asBytes, resp.arg[0]);
+               card.ats_len = resp.arg[0];                             // note: ats_len includes CRC Bytes

        } 
 
        } 
 

-       // disconnect
-       c.arg[0] = 0;
-       c.arg[1] = 0;
-       c.arg[2] = 0;
-       SendCommand(&c);
-
-       
-       if(card.ats_len >= 3) {                 // a valid ATS consists of at least the length byte TL and 2 CRC bytes
+       if(card.ats_len >= 3) {                 // a valid ATS consists of at least the length byte (TL) and 2 CRC bytes

                bool ta1 = 0, tb1 = 0, tc1 = 0;
                int pos;
 
                bool ta1 = 0, tb1 = 0, tc1 = 0;
                int pos;
 

-               if (!(card.sak & 0x02)) {
+               if (select_status == 2) {

                        PrintAndLog("SAK incorrectly claims that card doesn't support RATS");
                }
                PrintAndLog(" ATS : %s", sprint_hex(card.ats, card.ats_len));
                        PrintAndLog("SAK incorrectly claims that card doesn't support RATS");
                }
                PrintAndLog(" ATS : %s", sprint_hex(card.ats, card.ats_len));

-               if (card.ats_len > 0) {
-                       PrintAndLog("       -  TL : length is %d bytes", card.ats[0]);
+               PrintAndLog("       -  TL : length is %d bytes", card.ats[0]);
+               if (card.ats[0] != card.ats_len - 2) {
+                       PrintAndLog("ATS may be corrupted. Length of ATS (%d bytes incl. 2 Bytes CRC) doesn't match TL", card.ats_len);

                }
                }

-               if (card.ats_len > 1) {
+               
+               if (card.ats[0] > 1) {          // there is a format byte (T0)

                        ta1 = (card.ats[1] & 0x10) == 0x10;
                        tb1 = (card.ats[1] & 0x20) == 0x20;
                        tc1 = (card.ats[1] & 0x40) == 0x40;
                        ta1 = (card.ats[1] & 0x10) == 0x10;
                        tb1 = (card.ats[1] & 0x20) == 0x20;
                        tc1 = (card.ats[1] & 0x40) == 0x40;

+                       int16_t fsci = card.ats[1] & 0x0f;

                        PrintAndLog("       -  T0 : TA1 is%s present, TB1 is%s present, "
                        PrintAndLog("       -  T0 : TA1 is%s present, TB1 is%s present, "

-                                       "TC1 is%s present, FSCI is %d",
+                                       "TC1 is%s present, FSCI is %d (FSC = %ld)",

                                (ta1 ? "" : " NOT"), (tb1 ? "" : " NOT"), (tc1 ? "" : " NOT"),
                                (ta1 ? "" : " NOT"), (tb1 ? "" : " NOT"), (tc1 ? "" : " NOT"),

-                               (card.ats[1] & 0x0f));
+                               fsci,
+                               fsci < 5 ? (fsci - 2) * 8 : 
+                                       fsci < 8 ? (fsci - 3) * 32 :
+                                       fsci == 8 ? 256 :
+                                       -1
+                               );

                }
                pos = 2;
                }
                pos = 2;

-               if (ta1 && card.ats_len > pos) {
+               if (ta1) {

                        char dr[16], ds[16];
                        dr[0] = ds[0] = '\0';
                        if (card.ats[pos] & 0x10) strcat(ds, "2, ");
                        char dr[16], ds[16];
                        dr[0] = ds[0] = '\0';
                        if (card.ats[pos] & 0x10) strcat(ds, "2, ");


@@ -279,28 +346,34 @@ int CmdHF14AReader(const char *Cmd)
                                        (card.ats[pos] & 0x80 ? " NOT" : ""), dr, ds);
                        pos++;
                }
                                        (card.ats[pos] & 0x80 ? " NOT" : ""), dr, ds);
                        pos++;
                }

-               if (tb1 && card.ats_len > pos) {
-                       PrintAndLog("       - TB1 : SFGI = %d, FWI = %d",
-                                       (card.ats[pos] & 0x08),
-                                       (card.ats[pos] & 0x80) >> 4);
+               if (tb1) {
+                       uint32_t sfgi = card.ats[pos] & 0x0F;
+                       uint32_t fwi = card.ats[pos] >> 4;
+                       PrintAndLog("       - TB1 : SFGI = %d (SFGT = %s%ld/fc), FWI = %d (FWT = %ld/fc)",
+                                       (sfgi),
+                                       sfgi ? "" : "(not needed) ",
+                                       sfgi ? (1 << 12) << sfgi : 0,
+                                       fwi,
+                                       (1 << 12) << fwi
+                                       );

                        pos++;
                }
                        pos++;
                }

-               if (tc1 && card.ats_len > pos) {
+               if (tc1) {

                        PrintAndLog("       - TC1 : NAD is%s supported, CID is%s supported",
                                        (card.ats[pos] & 0x01) ? "" : " NOT",
                                        (card.ats[pos] & 0x02) ? "" : " NOT");
                        pos++;
                }
                        PrintAndLog("       - TC1 : NAD is%s supported, CID is%s supported",
                                        (card.ats[pos] & 0x01) ? "" : " NOT",
                                        (card.ats[pos] & 0x02) ? "" : " NOT");
                        pos++;
                }

-               if (card.ats_len > pos) {
+               if (card.ats[0] > pos) {

                        char *tip = "";
                        char *tip = "";

-                       if (card.ats_len - pos > 7) {
+                       if (card.ats[0] - pos >= 7) {

                                if (memcmp(card.ats + pos, "\xC1\x05\x2F\x2F\x01\xBC\xD6", 7) == 0) {
                                        tip = "-> MIFARE Plus X 2K or 4K";
                                } else if (memcmp(card.ats + pos, "\xC1\x05\x2F\x2F\x00\x35\xC7", 7) == 0) {
                                        tip = "-> MIFARE Plus S 2K or 4K";
                                }
                        } 
                                if (memcmp(card.ats + pos, "\xC1\x05\x2F\x2F\x01\xBC\xD6", 7) == 0) {
                                        tip = "-> MIFARE Plus X 2K or 4K";
                                } else if (memcmp(card.ats + pos, "\xC1\x05\x2F\x2F\x00\x35\xC7", 7) == 0) {
                                        tip = "-> MIFARE Plus S 2K or 4K";
                                }
                        } 

-                       PrintAndLog("       -  HB : %s%s", sprint_hex(card.ats + pos, card.ats_len - pos - 2), tip);
+                       PrintAndLog("       -  HB : %s%s", sprint_hex(card.ats + pos, card.ats[0] - pos), tip);

                        if (card.ats[pos] == 0xC1) {
                                PrintAndLog("               c1 -> Mifare or (multiple) virtual cards of various type");
                                PrintAndLog("                  %02x -> Length is %d bytes",
                        if (card.ats[pos] == 0xC1) {
                                PrintAndLog("               c1 -> Mifare or (multiple) virtual cards of various type");
                                PrintAndLog("                  %02x -> Length is %d bytes",


@@ -318,16 +391,16 @@ int CmdHF14AReader(const char *Cmd)
                                                PrintAndLog("                     x0 -> <1 kByte");
                                                break;
                                        case 0x01:
                                                PrintAndLog("                     x0 -> <1 kByte");
                                                break;
                                        case 0x01:

-                                               PrintAndLog("                     x0 -> 1 kByte");
+                                               PrintAndLog("                     x1 -> 1 kByte");

                                                break;
                                        case 0x02:
                                                break;
                                        case 0x02:

-                                               PrintAndLog("                     x0 -> 2 kByte");
+                                               PrintAndLog("                     x2 -> 2 kByte");

                                                break;
                                        case 0x03:
                                                break;
                                        case 0x03:

-                                               PrintAndLog("                     x0 -> 4 kByte");
+                                               PrintAndLog("                     x3 -> 4 kByte");

                                                break;
                                        case 0x04:
                                                break;
                                        case 0x04:

-                                               PrintAndLog("                     x0 -> 8 kByte");
+                                               PrintAndLog("                     x4 -> 8 kByte");

                                                break;
                                }
                                switch (card.ats[pos + 3] & 0xf0) {
                                                break;
                                }
                                switch (card.ats[pos + 3] & 0xf0) {


@@ -366,12 +439,32 @@ int CmdHF14AReader(const char *Cmd)
                PrintAndLog("proprietary non iso14443-4 card found, RATS not supported");
        }
 
                PrintAndLog("proprietary non iso14443-4 card found, RATS not supported");
        }
 

+       
+       // try to see if card responses to "chinese magic backdoor" commands.
+       uint8_t isOK = 0;
+       clearCommandBuffer();
+       c.cmd = CMD_MIFARE_CIDENT;
+       c.arg[0] = 0;
+       c.arg[1] = 0;
+       c.arg[2] = 0;   
+       SendCommand(&c);
+       if (WaitForResponseTimeout(CMD_ACK, &resp, 1500))
+               isOK  = resp.arg[0] & 0xff;
+
+       PrintAndLog("Answers to magic commands (GEN1): %s", (isOK ? "YES" : "NO") );
+       
+       // disconnect
+       c.cmd = CMD_READER_ISO_14443a;
+       c.arg[0] = 0;
+       c.arg[1] = 0;
+       c.arg[2] = 0;
+       SendCommand(&c);
+

        return select_status;
 }
 
 // Collect ISO14443 Type A UIDs
        return select_status;
 }
 
 // Collect ISO14443 Type A UIDs

-int CmdHF14ACUIDs(const char *Cmd)
-{
+int CmdHF14ACUIDs(const char *Cmd) {

        // requested number of UIDs
        int n = atoi(Cmd);
        // collect at least 1 (e.g. if no parameter was given)
        // requested number of UIDs
        int n = atoi(Cmd);
        // collect at least 1 (e.g. if no parameter was given)


@@ -402,142 +495,126 @@ int CmdHF14ACUIDs(const char *Cmd)
                }
        }
        PrintAndLog("End: %u", time(NULL));
                }
        }
        PrintAndLog("End: %u", time(NULL));

-

        return 1;
 }
 
 // ## simulate iso14443a tag
 // ## greg - added ability to specify tag UID
        return 1;
 }
 
 // ## simulate iso14443a tag
 // ## greg - added ability to specify tag UID

-int CmdHF14ASim(const char *Cmd)
-{
-       UsbCommand c = {CMD_SIMULATE_TAG_ISO_14443a,{0,0,0}};
-       
-       // Retrieve the tag type
-       uint8_t tagtype = param_get8ex(Cmd,0,0,10);
-       
-       // When no argument was given, just print help message
-       if (tagtype == 0) {
-               PrintAndLog("");
-               PrintAndLog(" Emulating ISO/IEC 14443 type A tag with 4 or 7 byte UID");
-               PrintAndLog("");
-               PrintAndLog("   syntax: hf 14a sim <type> <uid>");
-               PrintAndLog("    types: 1 = MIFARE Classic");
-               PrintAndLog("           2 = MIFARE Ultralight");
-               PrintAndLog("           3 = MIFARE DESFIRE");
-               PrintAndLog("           4 = ISO/IEC 14443-4");
-               PrintAndLog("");
-               return 1;
-       }
-       
-       // Store the tag type
-       c.arg[0] = tagtype;
-       
-       // Retrieve the full 4 or 7 byte long uid 
-       uint64_t long_uid = param_get64ex(Cmd,1,0,16);
-
-       // 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);
-               // Store the second part
-               c.arg[2] = (long_uid & 0xffffffff);
-               long_uid >>= 32;
-               // Store the first part, ignore the first byte, it is replaced by cascade byte (0x88)
-               c.arg[1] = (long_uid & 0xffffff);
-       } else {
-               PrintAndLog("Emulating ISO/IEC 14443 type A tag with 4 byte UID (%08x)",long_uid);
-               // Only store the first part
-               c.arg[1] = long_uid & 0xffffffff;
+int CmdHF14ASim(const char *Cmd) {
+       #define ATTACK_KEY_COUNT 8
+       bool errors = FALSE;
+       uint8_t flags = 0;
+       uint8_t tagtype = 1;    
+       uint8_t cmdp = 0;
+       uint8_t uid[10] = {0,0,0,0,0,0,0,0,0,0};
+       int uidlen = 0;
+       bool useUIDfromEML = TRUE;
+
+       while(param_getchar(Cmd, cmdp) != 0x00) {
+               switch(param_getchar(Cmd, cmdp)) {
+                       case 'h':
+                       case 'H':
+                               return usage_hf_14a_sim();
+                       case 't':
+                       case 'T':
+                               // Retrieve the tag type
+                               tagtype = param_get8ex(Cmd, cmdp+1, 0, 10);
+                               if (tagtype == 0)
+                                       errors = true; 
+                               cmdp += 2;
+                               break;
+                       case 'u':
+                       case 'U':
+                               // Retrieve the full 4,7,10 byte long uid 
+                               param_gethex_ex(Cmd, cmdp+1, uid, &uidlen);
+                               switch(uidlen) {
+                                       //case 20: flags |= FLAG_10B_UID_IN_DATA; break;
+                                       case 14: flags |= FLAG_7B_UID_IN_DATA; break;
+                                       case  8: flags |= FLAG_4B_UID_IN_DATA; break;
+                                       default: errors = TRUE; break;
+                               }                               
+                               if (!errors) {
+                                       PrintAndLog("Emulating ISO/IEC 14443 type A tag with %d byte UID (%s)", uidlen>>1, sprint_hex(uid, uidlen>>1));
+                                       useUIDfromEML = FALSE;
+                               }
+                               cmdp += 2;
+                               break;
+                       case 'x':
+                       case 'X':
+                               flags |= FLAG_NR_AR_ATTACK;
+                               cmdp++;
+                               break;
+                       default:
+                               PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
+                               errors = true;
+                               break;
+                       }
+               if(errors) break;

        }
        }

-/*
-               // At lease save the mandatory first part of the UID
-               c.arg[0] = long_uid & 0xffffffff;

 
 

+       //Validations
+       if (errors) return usage_hf_14a_sim();
+
+       if ( useUIDfromEML ) 
+               flags |= FLAG_UID_IN_EMUL;

        
        

-       // At lease save the mandatory first part of the UID
-       c.arg[0] = long_uid & 0xffffffff;
+       PrintAndLog("Press pm3-button to abort simulation");

        
        

-       if (c.arg[1] == 0) {
-               PrintAndLog("Emulating ISO/IEC 14443 type A tag with UID %01d %08x %08x",c.arg[0],c.arg[1],c.arg[2]);
+       UsbCommand c = {CMD_SIMULATE_TAG_ISO_14443a,{ tagtype, flags, 0 }};     
+       memcpy(c.d.asBytes, uid, uidlen>>1);
+       clearCommandBuffer();
+       SendCommand(&c);        
+
+       nonces_t data[ATTACK_KEY_COUNT*2];
+       UsbCommand resp;
+
+       while( !ukbhit() ){
+               if (!WaitForResponseTimeout(CMD_ACK, &resp, 1500) ) continue;
+
+               if ( !(flags & FLAG_NR_AR_ATTACK) ) break;
+               if ( (resp.arg[0] & 0xffff) != CMD_SIMULATE_MIFARE_CARD ) break;
+                       
+               memcpy( data, resp.d.asBytes, sizeof(data) );
+               readerAttack(data, TRUE);

        }
        }

-       
-       switch (c.arg[0]) {
-               case 1: {
-                       PrintAndLog("Emulating ISO/IEC 14443-3 type A tag with 4 byte UID");
-                       UsbCommand c = {CMD_SIMULATE_TAG_ISO_14443a,param_get32ex(Cmd,0,0,10),param_get32ex(Cmd,1,0,16),param_get32ex(Cmd,2,0,16)};
-               } break;
-               case 2: {
-                       PrintAndLog("Emulating ISO/IEC 14443-4 type A tag with 7 byte UID");
-               } break;
-               default: {
-                       PrintAndLog("Error: unkown tag type (%d)",c.arg[0]);
-                       PrintAndLog("syntax: hf 14a sim <uid>",c.arg[0]);
-                       PrintAndLog(" type1: 4 ",c.arg[0]);
-
-                       return 1;
-               } break;
-       }       
-*/
-/*
-  unsigned int hi = 0, lo = 0;
-  int n = 0, i = 0;
-  while (sscanf(&Cmd[i++], "%1x", &n ) == 1) {
-    hi= (hi << 4) | (lo >> 28);
-    lo= (lo << 4) | (n & 0xf);
-  }
-*/
-//     UsbCommand c = {CMD_SIMULATE_TAG_ISO_14443a,param_get32ex(Cmd,0,0,10),param_get32ex(Cmd,1,0,16),param_get32ex(Cmd,2,0,16)};
-//  PrintAndLog("Emulating ISO/IEC 14443 type A tag with UID %01d %08x %08x",c.arg[0],c.arg[1],c.arg[2]);
-  SendCommand(&c);
-  return 0;
+       return 0;

 }
 
 }
 

-int CmdHF14ASnoop(const char *Cmd) {
-       int param = 0;
-       
-       if (param_getchar(Cmd, 0) == 'h') {
-               PrintAndLog("It get data from the field and saves it into command buffer.");
-               PrintAndLog("Buffer accessible from command hf 14a list.");
-               PrintAndLog("Usage:  hf 14a snoop [c][r]");
-               PrintAndLog("c - triggered by first data from card");
-               PrintAndLog("r - triggered by first 7-bit request from reader (REQ,WUP,...)");
-               PrintAndLog("sample: hf 14a snoop c r");
-               return 0;
-       }       
+int CmdHF14ASniff(const char *Cmd) {
+       int param = 0;  
+       uint8_t ctmp = param_getchar(Cmd, 0) ;
+       if (ctmp == 'h' || ctmp == 'H') return usage_hf_14a_sniff();

        
        for (int i = 0; i < 2; i++) {
        
        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}};
                if (ctmp == 'c' || ctmp == 'C') param |= 0x01;
                if (ctmp == 'r' || ctmp == 'R') param |= 0x02;
        }
 
   UsbCommand c = {CMD_SNOOP_ISO_14443a, {param, 0, 0}};

+  clearCommandBuffer();

   SendCommand(&c);
   return 0;
 }
 
 int CmdHF14ACmdRaw(const char *cmd) {
     UsbCommand c = {CMD_READER_ISO_14443a, {0, 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;
+    bool reply=1;
+    bool crc = FALSE;
+    bool power = FALSE;
+    bool active = FALSE;
+    bool active_select = FALSE;

     uint16_t numbits=0;
     uint16_t numbits=0;

+       bool bTimeout = FALSE;
+       uint32_t timeout=0;
+       bool topazmode = FALSE;

     char buf[5]="";
     int i=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;
-    }
+    uint8_t data[USB_CMD_DATA_SIZE];
+       uint16_t datalen=0;
+       uint32_t temp;
+
+    if (strlen(cmd)<2) return usage_hf_14a_raw();

 
     // strip
     while (*cmd==' ' || *cmd=='\t') cmd++;
 
     // strip
     while (*cmd==' ' || *cmd=='\t') cmd++;


@@ -546,20 +623,23 @@ int CmdHF14ACmdRaw(const char *cmd) {
         if (cmd[i]==' ' || cmd[i]=='\t') { i++; continue; }
         if (cmd[i]=='-') {
             switch (cmd[i+1]) {
         if (cmd[i]==' ' || cmd[i]=='\t') { i++; continue; }
         if (cmd[i]=='-') {
             switch (cmd[i+1]) {

+                               case 'H':
+                               case 'h':
+                                       return usage_hf_14a_raw();

                 case 'r': 
                 case 'r': 

-                    reply=0;
+                    reply = FALSE;

                     break;
                 case 'c':
                     break;
                 case 'c':

-                    crc=1;
+                    crc = TRUE;

                     break;
                 case 'p':
                     break;
                 case 'p':

-                    power=1;
+                    power = TRUE;

                     break;
                 case 'a':
                     break;
                 case 'a':

-                    active=1;
+                    active = TRUE;

                     break;
                 case 's':
                     break;
                 case 's':

-                    active_select=1;
+                    active_select = TRUE;

                     break;
                 case 'b': 
                     sscanf(cmd+i+2,"%d",&temp);
                     break;
                 case 'b': 
                     sscanf(cmd+i+2,"%d",&temp);


@@ -568,9 +648,19 @@ int CmdHF14ACmdRaw(const char *cmd) {
                     while(cmd[i]!=' ' && cmd[i]!='\0') { i++; }
                     i-=2;
                     break;
                     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;

                 default:
                 default:

-                    PrintAndLog("Invalid option");
-                    return 0;
+                    return usage_hf_14a_raw();

             }
             i+=2;
             continue;
             }
             i+=2;
             continue;


@@ -585,18 +675,27 @@ int CmdHF14ACmdRaw(const char *cmd) {
             if (strlen(buf)>=2) {
                 sscanf(buf,"%x",&temp);
                 data[datalen]=(uint8_t)(temp & 0xff);
             if (strlen(buf)>=2) {
                 sscanf(buf,"%x",&temp);
                 data[datalen]=(uint8_t)(temp & 0xff);

-                datalen++;

                 *buf=0;
                 *buf=0;

+                               if (++datalen >= sizeof(data)){
+                                       if (crc)
+                                               PrintAndLog("Buffer is full, we can't add CRC to your data");
+                                       break;
+                               }

             }
             continue;
         }
         PrintAndLog("Invalid char on input");
         return 0;
     }
             }
             continue;
         }
         PrintAndLog("Invalid char on input");
         return 0;
     }

-    if(crc && datalen>0)
+
+    if(crc && datalen>0 && datalen<sizeof(data)-2)

     {
         uint8_t first, second;
     {
         uint8_t first, second;

-        ComputeCrc14443(CRC_14443_A, data, datalen, &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;
     }
         data[datalen++] = first;
         data[datalen++] = second;
     }


@@ -607,15 +706,33 @@ int CmdHF14ACmdRaw(const char *cmd) {
         if(active)
             c.arg[0] |= ISO14A_NO_SELECT;
     }
         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(power)
         c.arg[0] |= ISO14A_NO_DISCONNECT;

+

     if(datalen>0)
         c.arg[0] |= ISO14A_RAW;
 
     if(datalen>0)
         c.arg[0] |= ISO14A_RAW;
 

-    c.arg[1] = datalen;
-    c.arg[2] = numbits;
-    memcpy(c.d.asBytes,data,datalen);
+       if(topazmode)
+               c.arg[0] |= ISO14A_TOPAZMODE;
+                       
+       // Max buffer is USB_CMD_DATA_SIZE
+       datalen = (datalen > USB_CMD_DATA_SIZE) ? USB_CMD_DATA_SIZE : datalen;
+               
+    c.arg[1] = (datalen & 0xFFFF) | (uint32_t)(numbits << 16);
+    memcpy(c.d.asBytes, data, datalen);

 
 

+       clearCommandBuffer();

     SendCommand(&c);
 
     if (reply) {
     SendCommand(&c);
 
     if (reply) {


@@ -627,56 +744,39 @@ int CmdHF14ACmdRaw(const char *cmd) {
     return 0;
 }
 
     return 0;
 }
 

-static void waitCmd(uint8_t iSelect)
-{
-    uint8_t *recv;
+static void waitCmd(uint8_t iSelect) {

     UsbCommand resp;
     UsbCommand resp;

-    char *hexout;
+    uint16_t len = 0;

 
 

-    if (WaitForResponseTimeout(CMD_ACK,&resp,1000)) {
-        recv = resp.d.asBytes;
-        uint8_t iLen = iSelect ? resp.arg[1] : resp.arg[0];
-        PrintAndLog("received %i octets",iLen);
-        if(!iLen)
+    if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {        
+        len = iSelect ? (resp.arg[1] & 0xffff) : (resp.arg[0]  & 0xffff);
+        PrintAndLog("received %i octets", len);
+        if(!len)

             return;
             return;

-        hexout = (char *)malloc(iLen * 3 + 1);
-        if (hexout != NULL) {
-            for (int i = 0; i < iLen; i++) { // data in hex
-                sprintf(&hexout[i * 3], "%02X ", recv[i]);
-            }
-            PrintAndLog("%s", hexout);
-            free(hexout);
-        } else {
-            PrintAndLog("malloc failed your client has low memory?");
-        }
+               PrintAndLog("%s", sprint_hex(resp.d.asBytes, len) );

     } else {
         PrintAndLog("timeout while waiting for reply.");
     }
 }
 
     } else {
         PrintAndLog("timeout while waiting for reply.");
     }
 }
 

-static command_t CommandTable[] = 
-{
+static command_t CommandTable[] = {

   {"help",   CmdHelp,              1, "This help"},
   {"help",   CmdHelp,              1, "This help"},

-  {"list",   CmdHF14AList,         0, "List ISO 14443a history"},
+  {"list",   CmdHF14AList,         0, "[Deprecated] List ISO 14443a history"},

   {"reader", CmdHF14AReader,       0, "Act like an ISO14443 Type A reader"},
   {"cuids",  CmdHF14ACUIDs,        0, "<n> Collect n>0 ISO14443 Type A UIDs in one go"},
   {"reader", CmdHF14AReader,       0, "Act like an ISO14443 Type A reader"},
   {"cuids",  CmdHF14ACUIDs,        0, "<n> Collect n>0 ISO14443 Type A UIDs in one go"},

-  {"sim",    CmdHF14ASim,          0, "<UID> -- Fake ISO 14443a tag"},
-  {"snoop",  CmdHF14ASnoop,        0, "Eavesdrop ISO 14443 Type A"},
+  {"sim",    CmdHF14ASim,          0, "<UID> -- Simulate ISO 14443a tag"},
+  {"sniff",  CmdHF14ASniff,        0, "sniff ISO 14443 Type A traffic"},

   {"raw",    CmdHF14ACmdRaw,       0, "Send raw hex data to tag"},
   {NULL, NULL, 0, NULL}
 };
 
 int CmdHF14A(const char *Cmd) {
   {"raw",    CmdHF14ACmdRaw,       0, "Send raw hex data to tag"},
   {NULL, NULL, 0, NULL}
 };
 
 int CmdHF14A(const char *Cmd) {

-       // flush
-       WaitForResponseTimeout(CMD_ACK,NULL,100);
-
-       // parse
-  CmdsParse(CommandTable, Cmd);
-  return 0;
+       clearCommandBuffer();
+       CmdsParse(CommandTable, Cmd);
+       return 0;

 }
 
 }
 

-int CmdHelp(const char *Cmd)
-{
+int CmdHelp(const char *Cmd) {

   CmdsHelp(CommandTable);
   return 0;
 }
   CmdsHelp(CommandTable);
   return 0;
 }