CHG: 'lf em4x' - the em4x50 demod didn't calc ASKDemod_ext with a refenence bool.

[proxmark3-svn] / armsrc / iso14443a.c

diff --git a/armsrc/iso14443a.c b/armsrc/iso14443a.c
index 88d2b078c56f02ec02cb32fc3770f880a4e2153e..425352b9a29279f1e46f7723af5b05b3ffaa0407 100644 (file)
--- a/armsrc/iso14443a.c
+++ b/armsrc/iso14443a.c
@@ -849,6 +849,10 @@ bool prepare_allocated_tag_modulation(tag_response_info_t* response_info) {
 //-----------------------------------------------------------------------------
 void SimulateIso14443aTag(int tagType, int flags, byte_t* data) {
 
 //-----------------------------------------------------------------------------
 void SimulateIso14443aTag(int tagType, int flags, byte_t* data) {
 

+       #define ATTACK_KEY_COUNT 8 // keep same as define in cmdhfmf.c -> readerAttack()
+       // init pseudorand
+       fast_prand();
+       

        uint8_t sak = 0;
        uint32_t cuid = 0;                      
        uint32_t nonce = 0;
        uint8_t sak = 0;
        uint32_t cuid = 0;                      
        uint32_t nonce = 0;


@@ -866,18 +870,10 @@ void SimulateIso14443aTag(int tagType, int flags, byte_t* data) {
        uint8_t cardAUTHSC = 0;
        uint8_t cardAUTHKEY = 0xff;  // no authentication
        // allow collecting up to 8 sets of nonces to allow recovery of up to 8 keys
        uint8_t cardAUTHSC = 0;
        uint8_t cardAUTHKEY = 0xff;  // no authentication
        // allow collecting up to 8 sets of nonces to allow recovery of up to 8 keys

-       #define ATTACK_KEY_COUNT 8 // keep same as define in cmdhfmf.c -> readerAttack()
-       nonces_t ar_nr_resp[ATTACK_KEY_COUNT*2]; // for 2 separate attack types (nml, moebius)
-       memset(ar_nr_resp, 0x00, sizeof(ar_nr_resp));
-
-       uint8_t ar_nr_collected[ATTACK_KEY_COUNT*2]; // for 2nd attack type (moebius)
-       memset(ar_nr_collected, 0x00, sizeof(ar_nr_collected));
-       uint8_t nonce1_count = 0;
-       uint8_t nonce2_count = 0;
-       uint8_t moebius_n_count = 0;
-       bool gettingMoebius = false;
-       uint8_t mM = 0; // moebius_modifier for collection storage

 
 

+       nonces_t ar_nr_nonces[ATTACK_KEY_COUNT]; // for attack types moebius
+       memset(ar_nr_nonces, 0x00, sizeof(ar_nr_nonces));
+       uint8_t moebius_count = 0;

        
        switch (tagType) {
                case 1: { // MIFARE Classic 1k 
        
        switch (tagType) {
                case 1: { // MIFARE Classic 1k 


@@ -922,7 +918,11 @@ void SimulateIso14443aTag(int tagType, int flags, byte_t* data) {
                                memcpy(data+3, emdata+4, 4); // uid bytes 3-7
                                flags |= FLAG_7B_UID_IN_DATA;
                        }
                                memcpy(data+3, emdata+4, 4); // uid bytes 3-7
                                flags |= FLAG_7B_UID_IN_DATA;
                        }

-               } break;                
+               } break;        
+               case 8: { // MIFARE Classic 4k
+                       response1[0] = 0x02;
+                       sak = 0x18;
+               } break;

                default: {
                        Dbprintf("Error: unkown tagtype (%d)",tagType);
                        return;
                default: {
                        Dbprintf("Error: unkown tagtype (%d)",tagType);
                        return;


@@ -972,16 +972,15 @@ void SimulateIso14443aTag(int tagType, int flags, byte_t* data) {
        response3a[0] = sak & 0xFB;
        ComputeCrc14443(CRC_14443_A, response3a, 1, &response3a[1], &response3a[2]);
 
        response3a[0] = sak & 0xFB;
        ComputeCrc14443(CRC_14443_A, response3a, 1, &response3a[1], &response3a[2]);
 

-       uint8_t response5[] = { 0x01, 0x01, 0x01, 0x01 };                               // Very random tag nonce
+       // Tag NONCE.
+       uint8_t response5[4]; 
+       

        uint8_t response6[] = { 0x04, 0x58, 0x80, 0x02, 0x00, 0x00 };   // dummy ATS (pseudo-ATR), answer to RATS: 
        // Format byte = 0x58: FSCI=0x08 (FSC=256), TA(1) and TC(1) present, 
        // TA(1) = 0x80: different divisors not supported, DR = 1, DS = 1
        // TB(1) = not present. Defaults: FWI = 4 (FWT = 256 * 16 * 2^4 * 1/fc = 4833us), SFGI = 0 (SFG = 256 * 16 * 2^0 * 1/fc = 302us)
        // TC(1) = 0x02: CID supported, NAD not supported
        ComputeCrc14443(CRC_14443_A, response6, 4, &response6[4], &response6[5]);
        uint8_t response6[] = { 0x04, 0x58, 0x80, 0x02, 0x00, 0x00 };   // dummy ATS (pseudo-ATR), answer to RATS: 
        // Format byte = 0x58: FSCI=0x08 (FSC=256), TA(1) and TC(1) present, 
        // TA(1) = 0x80: different divisors not supported, DR = 1, DS = 1
        // TB(1) = not present. Defaults: FWI = 4 (FWT = 256 * 16 * 2^4 * 1/fc = 4833us), SFGI = 0 (SFG = 256 * 16 * 2^0 * 1/fc = 302us)
        // TC(1) = 0x02: CID supported, NAD not supported
        ComputeCrc14443(CRC_14443_A, response6, 4, &response6[4], &response6[5]);

-
-       // the randon nonce
-       nonce = bytes_to_num(response5, 4);     

        
        // Prepare GET_VERSION (different for UL EV-1 / NTAG)
        // uint8_t response7_EV1[] = {0x00, 0x04, 0x03, 0x01, 0x01, 0x00, 0x0b, 0x03, 0xfd, 0xf7};  //EV1 48bytes VERSION.
        
        // Prepare GET_VERSION (different for UL EV-1 / NTAG)
        // uint8_t response7_EV1[] = {0x00, 0x04, 0x03, 0x01, 0x01, 0x00, 0x0b, 0x03, 0xfd, 0xf7};  //EV1 48bytes VERSION.


@@ -1053,14 +1052,9 @@ void SimulateIso14443aTag(int tagType, int flags, byte_t* data) {
                
                // Clean receive command buffer
                if(!GetIso14443aCommandFromReader(receivedCmd, receivedCmdPar, &len)) {
                
                // Clean receive command buffer
                if(!GetIso14443aCommandFromReader(receivedCmd, receivedCmdPar, &len)) {

-                       DbpString("Button press");
+                       Dbprintf("Emulator stopped. Tracing: %d  trace length: %d ", tracing, BigBuf_get_traceLen());

                        break;
                        break;

-               }
-               
-               // incease nonce at every command recieved
-               nonce++;
-               num_to_bytes(nonce, 4, response5);
-               
+               }       

                p_response = NULL;
                
                // Okay, look at the command now.
                p_response = NULL;
                
                // Okay, look at the command now.


@@ -1118,12 +1112,12 @@ void SimulateIso14443aTag(int tagType, int flags, byte_t* data) {
                        p_response = NULL;                                      
                } else if (receivedCmd[0] == MIFARE_ULEV1_READ_CNT && tagType == 7) {   // Received a READ COUNTER -- 
                        uint8_t index = receivedCmd[1];
                        p_response = NULL;                                      
                } else if (receivedCmd[0] == MIFARE_ULEV1_READ_CNT && tagType == 7) {   // Received a READ COUNTER -- 
                        uint8_t index = receivedCmd[1];

-                       uint8_t data[] =  {0x00,0x00,0x00,0x14,0xa5};
+                       uint8_t cmd[] =  {0x00,0x00,0x00,0x14,0xa5};

                        if ( counters[index] > 0) {
                        if ( counters[index] > 0) {

-                               num_to_bytes(counters[index], 3, data);
-                               AppendCrc14443a(data, sizeof(data)-2);
+                               num_to_bytes(counters[index], 3, cmd);
+                               AppendCrc14443a(cmd, sizeof(cmd)-2);

                        }
                        }

-                       EmSendCmdEx(data,sizeof(data),false);                           
+                       EmSendCmdEx(cmd,sizeof(cmd),false);                             

                        p_response = NULL;
                } else if (receivedCmd[0] == MIFARE_ULEV1_INCR_CNT && tagType == 7) {   // Received a INC COUNTER -- 
                        // number of counter
                        p_response = NULL;
                } else if (receivedCmd[0] == MIFARE_ULEV1_INCR_CNT && tagType == 7) {   // Received a INC COUNTER -- 
                        // number of counter


@@ -1155,9 +1149,21 @@ void SimulateIso14443aTag(int tagType, int flags, byte_t* data) {
                                EmSendCmdEx(emdata, sizeof(emdata), false);
                                p_response = NULL;
                        } else {
                                EmSendCmdEx(emdata, sizeof(emdata), false);
                                p_response = NULL;
                        } else {

-                               cardAUTHSC = receivedCmd[1] / 4; // received block num
+                                                               

                                cardAUTHKEY = receivedCmd[0] - 0x60;
                                cardAUTHKEY = receivedCmd[0] - 0x60;

-                               p_response = &responses[5]; order = 7;
+                               cardAUTHSC = receivedCmd[1] / 4; // received block num
+                               
+                               // incease nonce at AUTH requests. this is time consuming.
+                               nonce = prand();
+                               //num_to_bytes(nonce, 4, response5);
+                               num_to_bytes(nonce, 4, dynamic_response_info.response);                         
+                               dynamic_response_info.response_n = 4;
+
+                               //prepare_tag_modulation(&responses[5], DYNAMIC_MODULATION_BUFFER_SIZE);
+                               prepare_tag_modulation(&dynamic_response_info, DYNAMIC_MODULATION_BUFFER_SIZE);
+                               p_response = &dynamic_response_info;
+                               //p_response = &responses[5]; 
+                               order = 7;

                        }
                } else if(receivedCmd[0] == ISO14443A_CMD_RATS) {       // Received a RATS request
                        if (tagType == 1 || tagType == 2) {     // RATS not supported
                        }
                } else if(receivedCmd[0] == ISO14443A_CMD_RATS) {       // Received a RATS request
                        if (tagType == 1 || tagType == 2) {     // RATS not supported


@@ -1170,69 +1176,64 @@ void SimulateIso14443aTag(int tagType, int flags, byte_t* data) {
                        LogTrace(receivedCmd, Uart.len, Uart.startTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.endTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.parity, TRUE);
                        uint32_t nr = bytes_to_num(receivedCmd,4);
                        uint32_t ar = bytes_to_num(receivedCmd+4,4);
                        LogTrace(receivedCmd, Uart.len, Uart.startTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.endTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.parity, TRUE);
                        uint32_t nr = bytes_to_num(receivedCmd,4);
                        uint32_t ar = bytes_to_num(receivedCmd+4,4);

-
+                

                        // Collect AR/NR per keytype & sector
                        if ( (flags & FLAG_NR_AR_ATTACK) == FLAG_NR_AR_ATTACK ) {
                        // Collect AR/NR per keytype & sector
                        if ( (flags & FLAG_NR_AR_ATTACK) == FLAG_NR_AR_ATTACK ) {

-                                       for (uint8_t i = 0; i < ATTACK_KEY_COUNT; i++) {
-                                               if ( ar_nr_collected[i+mM]==0 || ((cardAUTHSC == ar_nr_resp[i+mM].sector) && (cardAUTHKEY == ar_nr_resp[i+mM].keytype) && (ar_nr_collected[i+mM] > 0)) ) {
-                                                       // if first auth for sector, or matches sector and keytype of previous auth
-                                                       if (ar_nr_collected[i+mM] < 2) {
-                                                               // if we haven't already collected 2 nonces for this sector
-                                                               if (ar_nr_resp[ar_nr_collected[i+mM]].ar != ar) {
-                                                                       // Avoid duplicates... probably not necessary, ar should vary. 
-                                                                       if (ar_nr_collected[i+mM]==0) {
-                                                                               // first nonce collect
-                                                                               ar_nr_resp[i+mM].cuid = cuid;
-                                                                               ar_nr_resp[i+mM].sector = cardAUTHSC;
-                                                                               ar_nr_resp[i+mM].keytype = cardAUTHKEY;
-                                                                               ar_nr_resp[i+mM].nonce = nonce;
-                                                                               ar_nr_resp[i+mM].nr = nr;
-                                                                               ar_nr_resp[i+mM].ar = ar;
-                                                                               nonce1_count++;
-                                                                               // add this nonce to first moebius nonce
-                                                                               ar_nr_resp[i+ATTACK_KEY_COUNT].cuid = cuid;
-                                                                               ar_nr_resp[i+ATTACK_KEY_COUNT].sector = cardAUTHSC;
-                                                                               ar_nr_resp[i+ATTACK_KEY_COUNT].keytype = cardAUTHKEY;
-                                                                               ar_nr_resp[i+ATTACK_KEY_COUNT].nonce = nonce;
-                                                                               ar_nr_resp[i+ATTACK_KEY_COUNT].nr = nr;
-                                                                               ar_nr_resp[i+ATTACK_KEY_COUNT].ar = ar;
-                                                                               ar_nr_collected[i+ATTACK_KEY_COUNT]++;
-                                                                       } else { // second nonce collect (std and moebius)
-                                                                               ar_nr_resp[i+mM].nonce2 = nonce;
-                                                                               ar_nr_resp[i+mM].nr2 = nr;
-                                                                               ar_nr_resp[i+mM].ar2 = ar;
-                                                                               if (!gettingMoebius) {
-                                                                                       nonce2_count++;
-                                                                                       // check if this was the last second nonce we need for std attack
-                                                                                       if ( nonce2_count == nonce1_count ) {
-                                                                                               // done collecting std test switch to moebius
-                                                                                               // first finish incrementing last sample
-                                                                                               ar_nr_collected[i+mM]++; 
-                                                                                               // switch to moebius collection
-                                                                                               gettingMoebius = true;
-                                                                                               mM = ATTACK_KEY_COUNT;
-                                                                                               break;
-                                                                                       }
-                                                                               } else {
-                                                                                       moebius_n_count++;
-                                                                                       // if we've collected all the nonces we need - finish.
-                                                                                       if (nonce1_count == moebius_n_count) {
-                                                                                               cmd_send(CMD_ACK,CMD_SIMULATE_MIFARE_CARD,0,0,&ar_nr_resp,sizeof(ar_nr_resp));
-                                                                                               nonce1_count = 0;
-                                                                                               nonce2_count = 0;
-                                                                                               moebius_n_count = 0;
-                                                                                               gettingMoebius = false;
-                                                                                       }
-                                                                               }
-                                                                       }
-                                                                       ar_nr_collected[i+mM]++;
-                                                               }
-                                                       }
-                                                       // we found right spot for this nonce stop looking
-                                                       break;
-                                               }
+                               
+                               int8_t index = -1;
+                               int8_t empty = -1;
+                               for (uint8_t i = 0; i < ATTACK_KEY_COUNT; i++) {
+                                       // find which index to use
+                                       if ( (cardAUTHSC == ar_nr_nonces[i].sector) &&  (cardAUTHKEY == ar_nr_nonces[i].keytype)) 
+                                               index = i;
+
+                                       // keep track of empty slots.
+                                       if ( ar_nr_nonces[i].state == EMPTY)
+                                               empty = i;
+                               }
+                               // if no empty slots.  Choose first and overwrite.
+                               if ( index == -1 ) {
+                                       if ( empty == -1 ) {
+                                               index = 0;
+                                               ar_nr_nonces[index].state = EMPTY;
+                                       } else {
+                                               index = empty;

                                        }
                                }
                                        }
                                }

+
+                               switch(ar_nr_nonces[index].state) {
+                                       case EMPTY: {
+                                               // first nonce collect
+                                               ar_nr_nonces[index].cuid = cuid;
+                                               ar_nr_nonces[index].sector = cardAUTHSC;
+                                               ar_nr_nonces[index].keytype = cardAUTHKEY;
+                                               ar_nr_nonces[index].nonce = nonce;
+                                               ar_nr_nonces[index].nr = nr;
+                                               ar_nr_nonces[index].ar = ar;
+                                               ar_nr_nonces[index].state = FIRST;
+                                               break;
+                                       } 
+                                       case FIRST : { 
+                                               // second nonce collect
+                                               ar_nr_nonces[index].nonce2 = nonce;
+                                               ar_nr_nonces[index].nr2 = nr;
+                                               ar_nr_nonces[index].ar2 = ar;
+                                               ar_nr_nonces[index].state = SECOND;
+
+                                               // send to client
+                                               cmd_send(CMD_ACK, CMD_SIMULATE_MIFARE_CARD, 0, 0, &ar_nr_nonces[index], sizeof(nonces_t));
+                                               
+                                               ar_nr_nonces[index].state = EMPTY;
+                                               ar_nr_nonces[index].sector = 0;
+                                               ar_nr_nonces[index].keytype = 0;
+                                               
+                                               moebius_count++;
+                                               break;
+                                       }
+                                       default: break;
+                               }
+                       }
+                       p_response = NULL;

                        
                } else if (receivedCmd[0] == MIFARE_ULC_AUTH_1 ) { // ULC authentication, or Desfire Authentication
                } else if (receivedCmd[0] == MIFARE_ULEV1_AUTH) { // NTAG / EV-1 authentication
                        
                } else if (receivedCmd[0] == MIFARE_ULC_AUTH_1 ) { // ULC authentication, or Desfire Authentication
                } else if (receivedCmd[0] == MIFARE_ULEV1_AUTH) { // NTAG / EV-1 authentication


@@ -1272,8 +1273,8 @@ void SimulateIso14443aTag(int tagType, int flags, byte_t* data) {
                                  dynamic_response_info.response_n = 2;
                                } break;
 
                                  dynamic_response_info.response_n = 2;
                                } break;
 

-                               case 0xaa:
-                               case 0xbb: {
+                               case 0xAA:
+                               case 0xBB: {

                                  dynamic_response_info.response[0] = receivedCmd[0] ^ 0x11;
                                  dynamic_response_info.response_n = 2;
                                } break;
                                  dynamic_response_info.response[0] = receivedCmd[0] ^ 0x11;
                                  dynamic_response_info.response_n = 2;
                                } break;


@@ -1306,11 +1307,11 @@ void SimulateIso14443aTag(int tagType, int flags, byte_t* data) {
                                dynamic_response_info.response[1] = receivedCmd[1];
 
                                // Add CRC bytes, always used in ISO 14443A-4 compliant cards
                                dynamic_response_info.response[1] = receivedCmd[1];
 
                                // Add CRC bytes, always used in ISO 14443A-4 compliant cards

-                               AppendCrc14443a(dynamic_response_info.response,dynamic_response_info.response_n);
+                               AppendCrc14443a(dynamic_response_info.response, dynamic_response_info.response_n);

                                dynamic_response_info.response_n += 2;
         
                                if (prepare_tag_modulation(&dynamic_response_info,DYNAMIC_MODULATION_BUFFER_SIZE) == false) {
                                dynamic_response_info.response_n += 2;
         
                                if (prepare_tag_modulation(&dynamic_response_info,DYNAMIC_MODULATION_BUFFER_SIZE) == false) {

-                                       Dbprintf("Error preparing tag response");
+                                       DbpString("Error preparing tag response");

                                        LogTrace(receivedCmd, Uart.len, Uart.startTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.endTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.parity, TRUE);
                                        break;
                                }
                                        LogTrace(receivedCmd, Uart.len, Uart.startTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.endTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.parity, TRUE);
                                        break;
                                }


@@ -1326,7 +1327,7 @@ void SimulateIso14443aTag(int tagType, int flags, byte_t* data) {
 
                // comment this limit if you want to simulation longer          
                if (!tracing) {
 
                // comment this limit if you want to simulation longer          
                if (!tracing) {

-                       Dbprintf("Trace Full. Simulation stopped.");
+                       DbpString("Trace Full. Simulation stopped.");

                        break;
                }
                // comment this limit if you want to simulation longer
                        break;
                }
                // comment this limit if you want to simulation longer


@@ -1359,8 +1360,10 @@ void SimulateIso14443aTag(int tagType, int flags, byte_t* data) {
        set_tracing(FALSE);
        BigBuf_free_keep_EM();
        LED_A_OFF();
        set_tracing(FALSE);
        BigBuf_free_keep_EM();
        LED_A_OFF();

-       
-               if(flags & FLAG_NR_AR_ATTACK && MF_DBGLEVEL >= 1) {
+
+       /*      
+       if(flags & FLAG_NR_AR_ATTACK && MF_DBGLEVEL >= 1) {
+

                for ( uint8_t   i = 0; i < ATTACK_KEY_COUNT; i++) {
                        if (ar_nr_collected[i] == 2) {
                                Dbprintf("Collected two pairs of AR/NR which can be used to extract %s from reader for sector %d:", (i<ATTACK_KEY_COUNT/2) ? "keyA" : "keyB", ar_nr_resp[i].sector);
                for ( uint8_t   i = 0; i < ATTACK_KEY_COUNT; i++) {
                        if (ar_nr_collected[i] == 2) {
                                Dbprintf("Collected two pairs of AR/NR which can be used to extract %s from reader for sector %d:", (i<ATTACK_KEY_COUNT/2) ? "keyA" : "keyB", ar_nr_resp[i].sector);


@@ -1374,6 +1377,7 @@ void SimulateIso14443aTag(int tagType, int flags, byte_t* data) {
                                                );
                        }
                }       
                                                );
                        }
                }       

+

                for ( uint8_t   i = ATTACK_KEY_COUNT; i < ATTACK_KEY_COUNT*2; i++) {
                        if (ar_nr_collected[i] == 2) {
                                Dbprintf("Collected two pairs of AR/NR which can be used to extract %s from reader for sector %d:", (i<ATTACK_KEY_COUNT/2) ? "keyA" : "keyB", ar_nr_resp[i].sector);
                for ( uint8_t   i = ATTACK_KEY_COUNT; i < ATTACK_KEY_COUNT*2; i++) {
                        if (ar_nr_collected[i] == 2) {
                                Dbprintf("Collected two pairs of AR/NR which can be used to extract %s from reader for sector %d:", (i<ATTACK_KEY_COUNT/2) ? "keyA" : "keyB", ar_nr_resp[i].sector);


@@ -1389,12 +1393,16 @@ void SimulateIso14443aTag(int tagType, int flags, byte_t* data) {
                        }
                }
        }
                        }
                }
        }

-       
+       */
+               

        if (MF_DBGLEVEL >= 4){
        if (MF_DBGLEVEL >= 4){

-               Dbprintf("-[ Wake ups after halt [%d]", happened);
-               Dbprintf("-[ Messages after halt [%d]", happened2);
-               Dbprintf("-[ Num of received cmd [%d]", cmdsRecvd);
+               Dbprintf("-[ Wake ups after halt  [%d]", happened);
+               Dbprintf("-[ Messages after halt  [%d]", happened2);
+               Dbprintf("-[ Num of received cmd  [%d]", cmdsRecvd);
+               Dbprintf("-[ Num of moebius tries [%d]", moebius_count);

        }
        }

+       
+       cmd_send(CMD_ACK,1,0,0,0,0);

 }
 
 // prepare a delayed transfer. This simply shifts ToSend[] by a number
 }
 
 // prepare a delayed transfer. This simply shifts ToSend[] by a number


@@ -1835,10 +1843,10 @@ int ReaderReceive(uint8_t *receivedAnswer, uint8_t *parity) {
 // if anticollision is false, then the UID must be provided in uid_ptr[] 
 // and num_cascades must be set (1: 4 Byte UID, 2: 7 Byte UID, 3: 10 Byte UID)
 int iso14443a_select_card(byte_t *uid_ptr, iso14a_card_select_t *p_hi14a_card, uint32_t *cuid_ptr, bool anticollision, uint8_t num_cascades) {
 // if anticollision is false, then the UID must be provided in uid_ptr[] 
 // and num_cascades must be set (1: 4 Byte UID, 2: 7 Byte UID, 3: 10 Byte UID)
 int iso14443a_select_card(byte_t *uid_ptr, iso14a_card_select_t *p_hi14a_card, uint32_t *cuid_ptr, bool anticollision, uint8_t num_cascades) {

-       uint8_t wupa[]       = { 0x52 };  // 0x26 - REQA  0x52 - WAKE-UP
-       uint8_t sel_all[]    = { 0x93,0x20 };
-       uint8_t sel_uid[]    = { 0x93,0x70,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
-       uint8_t rats[]       = { 0xE0,0x80,0x00,0x00 }; // FSD=256, FSDI=8, CID=0
+       uint8_t wupa[]       = { ISO14443A_CMD_WUPA };  // 0x26 - ISO14443A_CMD_REQA  0x52 - ISO14443A_CMD_WUPA
+       uint8_t sel_all[]    = { ISO14443A_CMD_ANTICOLL_OR_SELECT,0x20 };
+       uint8_t sel_uid[]    = { ISO14443A_CMD_ANTICOLL_OR_SELECT,0x70,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+       uint8_t rats[]       = { ISO14443A_CMD_RATS,0x80,0x00,0x00 }; // FSD=256, FSDI=8, CID=0

        uint8_t resp[MAX_FRAME_SIZE] = {0}; // theoretically. A usual RATS will be much smaller
        uint8_t resp_par[MAX_PARITY_SIZE] = {0};
        byte_t uid_resp[4] = {0};
        uint8_t resp[MAX_FRAME_SIZE] = {0}; // theoretically. A usual RATS will be much smaller
        uint8_t resp_par[MAX_PARITY_SIZE] = {0};
        byte_t uid_resp[4] = {0};


@@ -1866,6 +1874,9 @@ int iso14443a_select_card(byte_t *uid_ptr, iso14a_card_select_t *p_hi14a_card, u
                        memset(uid_ptr,0,10);
        }
 
                        memset(uid_ptr,0,10);
        }
 

+       // reset the PCB block number
+       iso14_pcb_blocknum = 0;
+       

        // check for proprietary anticollision:
        if ((resp[0] & 0x1F) == 0) return 3;
        
        // check for proprietary anticollision:
        if ((resp[0] & 0x1F) == 0) return 3;
        


@@ -1977,41 +1988,37 @@ int iso14443a_select_card(byte_t *uid_ptr, iso14a_card_select_t *p_hi14a_card, u
                p_hi14a_card->ats_len = len;
        }
 
                p_hi14a_card->ats_len = len;
        }
 

-       // reset the PCB block number
-       iso14_pcb_blocknum = 0;
-

        // set default timeout based on ATS
        iso14a_set_ATS_timeout(resp);
        // set default timeout based on ATS
        iso14a_set_ATS_timeout(resp);

-

        return 1;       
 }
 
 void iso14443a_setup(uint8_t fpga_minor_mode) {
        return 1;       
 }
 
 void iso14443a_setup(uint8_t fpga_minor_mode) {

+

        FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
        // Set up the synchronous serial port
        FpgaSetupSsc();
        // connect Demodulated Signal to ADC:
        SetAdcMuxFor(GPIO_MUXSEL_HIPKD);
 
        FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
        // Set up the synchronous serial port
        FpgaSetupSsc();
        // connect Demodulated Signal to ADC:
        SetAdcMuxFor(GPIO_MUXSEL_HIPKD);
 

-       FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | fpga_minor_mode);
-       

        LED_D_OFF();
        // Signal field is on with the appropriate LED
        if (fpga_minor_mode == FPGA_HF_ISO14443A_READER_MOD ||
                fpga_minor_mode == FPGA_HF_ISO14443A_READER_LISTEN)
                LED_D_ON();
 
        LED_D_OFF();
        // Signal field is on with the appropriate LED
        if (fpga_minor_mode == FPGA_HF_ISO14443A_READER_MOD ||
                fpga_minor_mode == FPGA_HF_ISO14443A_READER_LISTEN)
                LED_D_ON();
 

-       // Prepare the demodulation functions
-       DemodReset();
-       UartReset();
-
-       iso14a_set_timeout(10*106); // 10ms default
+       FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | fpga_minor_mode);

 
 

-       //NextTransferTime = 2 * DELAY_ARM2AIR_AS_READER;
-       NextTransferTime = DELAY_ARM2AIR_AS_READER << 1;
+       SpinDelay(20);

        
        // Start the timer
        StartCountSspClk();
        
        // Start the timer
        StartCountSspClk();

+       
+       // Prepare the demodulation functions
+       DemodReset();
+       UartReset();
+       NextTransferTime = 2 * DELAY_ARM2AIR_AS_READER;
+       iso14a_set_timeout(10*106); // 20ms default     

 }
 
 int iso14_apdu(uint8_t *cmd, uint16_t cmd_len, void *data) {
 }
 
 int iso14_apdu(uint8_t *cmd, uint16_t cmd_len, void *data) {


@@ -2040,13 +2047,12 @@ int iso14_apdu(uint8_t *cmd, uint16_t cmd_len, void *data) {
        {
                iso14_pcb_blocknum ^= 1;
        }
        {
                iso14_pcb_blocknum ^= 1;
        }

-

        return len;
 }
 
        return len;
 }
 

+

 //-----------------------------------------------------------------------------
 // Read an ISO 14443a tag. Send out commands and store answers.
 //-----------------------------------------------------------------------------
 // Read an ISO 14443a tag. Send out commands and store answers.

-//

 //-----------------------------------------------------------------------------
 void ReaderIso14443a(UsbCommand *c) {
        iso14a_command_t param = c->arg[0];
 //-----------------------------------------------------------------------------
 void ReaderIso14443a(UsbCommand *c) {
        iso14a_command_t param = c->arg[0];


@@ -2086,17 +2092,17 @@ void ReaderIso14443a(UsbCommand *c) {
        }
 
        if (param & ISO14A_RAW) {
        }
 
        if (param & ISO14A_RAW) {

-               if(param & ISO14A_APPEND_CRC) {
-                       if(param & ISO14A_TOPAZMODE) {
+               if (param & ISO14A_APPEND_CRC) {
+                       if (param & ISO14A_TOPAZMODE)

                                AppendCrc14443b(cmd,len);
                                AppendCrc14443b(cmd,len);

-                       } else {
+                       else

                                AppendCrc14443a(cmd,len);
                                AppendCrc14443a(cmd,len);

-                       }
+                       

                        len += 2;
                        if (lenbits) lenbits += 16;
                }
                        len += 2;
                        if (lenbits) lenbits += 16;
                }

-               if(lenbits>0) {                         // want to send a specific number of bits (e.g. short commands)
-                       if(param & ISO14A_TOPAZMODE) {
+               if (lenbits>0) {                                // want to send a specific number of bits (e.g. short commands)
+                       if (param & ISO14A_TOPAZMODE) {

                                int bits_to_send = lenbits;
                                uint16_t i = 0;
                                ReaderTransmitBitsPar(&cmd[i++], MIN(bits_to_send, 7), NULL, NULL);             // first byte is always short (7bits) and no parity
                                int bits_to_send = lenbits;
                                uint16_t i = 0;
                                ReaderTransmitBitsPar(&cmd[i++], MIN(bits_to_send, 7), NULL, NULL);             // first byte is always short (7bits) and no parity


@@ -2110,7 +2116,7 @@ void ReaderIso14443a(UsbCommand *c) {
                                ReaderTransmitBitsPar(cmd, lenbits, par, NULL);                                                 // bytes are 8 bit with odd parity
                        }
                } else {                                        // want to send complete bytes only
                                ReaderTransmitBitsPar(cmd, lenbits, par, NULL);                                                 // bytes are 8 bit with odd parity
                        }
                } else {                                        // want to send complete bytes only

-                       if(param & ISO14A_TOPAZMODE) {
+                       if (param & ISO14A_TOPAZMODE) {

                                uint16_t i = 0;
                                ReaderTransmitBitsPar(&cmd[i++], 7, NULL, NULL);                                                // first byte: 7 bits, no paritiy
                                while (i < len) {
                                uint16_t i = 0;
                                ReaderTransmitBitsPar(&cmd[i++], 7, NULL, NULL);                                                // first byte: 7 bits, no paritiy
                                while (i < len) {


@@ -2145,10 +2151,26 @@ int32_t dist_nt(uint32_t nt1, uint32_t nt2) {
        uint32_t nttmp1 = nt1;
        uint32_t nttmp2 = nt2;
 
        uint32_t nttmp1 = nt1;
        uint32_t nttmp2 = nt2;
 

-       for (uint16_t i = 1; i < 0xFFFF; ++i) {
+       // 0xFFFF -- Half up and half down to find distance between nonces
+       for (uint16_t i = 1; i < 32768/8; i += 8) {

                nttmp1 = prng_successor(nttmp1, 1);     if (nttmp1 == nt2) return i;
                nttmp1 = prng_successor(nttmp1, 1);     if (nttmp1 == nt2) return i;

+               nttmp1 = prng_successor(nttmp1, 1);     if (nttmp1 == nt2) return i+1;
+               nttmp1 = prng_successor(nttmp1, 1);     if (nttmp1 == nt2) return i+2;
+               nttmp1 = prng_successor(nttmp1, 1);     if (nttmp1 == nt2) return i+3;
+               nttmp1 = prng_successor(nttmp1, 1);     if (nttmp1 == nt2) return i+4;
+               nttmp1 = prng_successor(nttmp1, 1);     if (nttmp1 == nt2) return i+5;
+               nttmp1 = prng_successor(nttmp1, 1);     if (nttmp1 == nt2) return i+6;
+               nttmp1 = prng_successor(nttmp1, 1);     if (nttmp1 == nt2) return i+7;
+               

                nttmp2 = prng_successor(nttmp2, 1);     if (nttmp2 == nt1) return -i;
                nttmp2 = prng_successor(nttmp2, 1);     if (nttmp2 == nt1) return -i;

-       }       
+               nttmp2 = prng_successor(nttmp2, 1);     if (nttmp2 == nt1) return -(i+1);
+               nttmp2 = prng_successor(nttmp2, 1);     if (nttmp2 == nt1) return -(i+2);
+               nttmp2 = prng_successor(nttmp2, 1);     if (nttmp2 == nt1) return -(i+3);
+               nttmp2 = prng_successor(nttmp2, 1);     if (nttmp2 == nt1) return -(i+4);
+               nttmp2 = prng_successor(nttmp2, 1);     if (nttmp2 == nt1) return -(i+5);
+               nttmp2 = prng_successor(nttmp2, 1);     if (nttmp2 == nt1) return -(i+6);
+               nttmp2 = prng_successor(nttmp2, 1);     if (nttmp2 == nt1) return -(i+7);               
+       }

        // either nt1 or nt2 are invalid nonces 
        return(-99999); 
 }
        // either nt1 or nt2 are invalid nonces 
        return(-99999); 
 }


@@ -2200,14 +2222,14 @@ void ReaderMifare(bool first_try, uint8_t block, uint8_t keytype ) {
        
        BigBuf_free(); BigBuf_Clear_ext(false); 
        clear_trace();
        
        BigBuf_free(); BigBuf_Clear_ext(false); 
        clear_trace();

-       set_tracing(TRUE);      
+       set_tracing(FALSE);     

        iso14443a_setup(FPGA_HF_ISO14443A_READER_MOD);
 
        sync_time = GetCountSspClk() & 0xfffffff8;
        sync_cycles = PRNG_SEQUENCE_LENGTH; // Mifare Classic's random generator repeats every 2^16 cycles (and so do the nonces).              
        nt_attacked = 0;
        
        iso14443a_setup(FPGA_HF_ISO14443A_READER_MOD);
 
        sync_time = GetCountSspClk() & 0xfffffff8;
        sync_cycles = PRNG_SEQUENCE_LENGTH; // Mifare Classic's random generator repeats every 2^16 cycles (and so do the nonces).              
        nt_attacked = 0;
        

-   if (MF_DBGLEVEL >= 4)       Dbprintf("Mifare::Sync %08x", sync_time);
+   if (MF_DBGLEVEL >= 4)       Dbprintf("Mifare::Sync %u", sync_time);

                                
        if (first_try) {
                mf_nr_ar3 = 0;
                                
        if (first_try) {
                mf_nr_ar3 = 0;


@@ -2424,6 +2446,10 @@ void ReaderMifare(bool first_try, uint8_t block, uint8_t keytype ) {
   *@param exitAfterNReads, exit simulation after n blocks have been read, 0 is inifite
   */
 void Mifare1ksim(uint8_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t *datain) {
   *@param exitAfterNReads, exit simulation after n blocks have been read, 0 is inifite
   */
 void Mifare1ksim(uint8_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t *datain) {

+
+       // init pseudorand
+       fast_prand( GetTickCount() );
+       

        int cardSTATE = MFEMUL_NOFIELD;
        int _UID_LEN = 0;  // 4, 7, 10
        int vHf = 0;    // in mV
        int cardSTATE = MFEMUL_NOFIELD;
        int _UID_LEN = 0;  // 4, 7, 10
        int vHf = 0;    // in mV


@@ -2457,19 +2483,19 @@ void Mifare1ksim(uint8_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t *
        uint8_t rUIDBCC2[] = {0xde, 0xad, 0xbe, 0xaf, 0x62}; 
        uint8_t rUIDBCC3[] = {0xde, 0xad, 0xbe, 0xaf, 0x62};
 
        uint8_t rUIDBCC2[] = {0xde, 0xad, 0xbe, 0xaf, 0x62}; 
        uint8_t rUIDBCC3[] = {0xde, 0xad, 0xbe, 0xaf, 0x62};
 

-       uint8_t rAUTH_NT[] = {0x01, 0x01, 0x01, 0x01};  // very random nonce
+       // TAG Nonce - Authenticate response
+       uint8_t rAUTH_NT[4];
+       uint32_t nonce = prand();
+       num_to_bytes(nonce, 4, rAUTH_NT);
+       

        // uint8_t rAUTH_NT[] = {0x55, 0x41, 0x49, 0x92};// nonce from nested? why this?
        uint8_t rAUTH_AT[] = {0x00, 0x00, 0x00, 0x00};
        // uint8_t rAUTH_NT[] = {0x55, 0x41, 0x49, 0x92};// nonce from nested? why this?
        uint8_t rAUTH_AT[] = {0x00, 0x00, 0x00, 0x00};

-               
+       

        // Here, we collect CUID, NT, NR, AR, CUID2, NT2, NR2, AR2
        // This can be used in a reader-only attack.
        // Here, we collect CUID, NT, NR, AR, CUID2, NT2, NR2, AR2
        // This can be used in a reader-only attack.

-       uint32_t ar_nr_responses[] = {0,0,0,0,0,0,0,0,0};
-       uint8_t ar_nr_collected = 0;
+       nonces_t ar_nr_nonces[ATTACK_KEY_COUNT];
+       memset(ar_nr_nonces, 0x00, sizeof(ar_nr_nonces));

 
 

-       // Authenticate response - nonce
-       uint32_t nonce = bytes_to_num(rAUTH_NT, 4);
-       ar_nr_responses[1] = nonce;
-       

        // -- Determine the UID
        // Can be set from emulator memory or incoming data
        // Length: 4,7,or 10 bytes
        // -- Determine the UID
        // Can be set from emulator memory or incoming data
        // Length: 4,7,or 10 bytes


@@ -2494,7 +2520,7 @@ void Mifare1ksim(uint8_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t *
                case 4:
                        sak_4[0] &= 0xFB;               
                        // save CUID
                case 4:
                        sak_4[0] &= 0xFB;               
                        // save CUID

-                       ar_nr_responses[0] = cuid = bytes_to_num(rUIDBCC1, 4);
+                       cuid = bytes_to_num(rUIDBCC1, 4);

                        // BCC
                        rUIDBCC1[4] = rUIDBCC1[0] ^ rUIDBCC1[1] ^ rUIDBCC1[2] ^ rUIDBCC1[3];
                        if (MF_DBGLEVEL >= 2)   {
                        // BCC
                        rUIDBCC1[4] = rUIDBCC1[0] ^ rUIDBCC1[1] ^ rUIDBCC1[2] ^ rUIDBCC1[3];
                        if (MF_DBGLEVEL >= 2)   {


@@ -2510,7 +2536,7 @@ void Mifare1ksim(uint8_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t *
                        atqa[0] |= 0x40;
                        sak_7[0] &= 0xFB;                                               
                        // save CUID
                        atqa[0] |= 0x40;
                        sak_7[0] &= 0xFB;                                               
                        // save CUID

-                       ar_nr_responses[0] = cuid = bytes_to_num(rUIDBCC2, 4);                  
+                       cuid = bytes_to_num(rUIDBCC2, 4);                       

                         // CascadeTag, CT
                        rUIDBCC1[0] = 0x88;
                        // BCC
                         // CascadeTag, CT
                        rUIDBCC1[0] = 0x88;
                        // BCC


@@ -2532,7 +2558,7 @@ void Mifare1ksim(uint8_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t *
                        atqa[0] |= 0x80;
                        sak_10[0] &= 0xFB;                                      
                        // save CUID
                        atqa[0] |= 0x80;
                        sak_10[0] &= 0xFB;                                      
                        // save CUID

-                       ar_nr_responses[0] = cuid = bytes_to_num(rUIDBCC3, 4);
+                       cuid = bytes_to_num(rUIDBCC3, 4);

                         // CascadeTag, CT
                        rUIDBCC1[0] = 0x88;
                        rUIDBCC2[0] = 0x88;
                         // CascadeTag, CT
                        rUIDBCC1[0] = 0x88;
                        rUIDBCC2[0] = 0x88;


@@ -2605,7 +2631,7 @@ void Mifare1ksim(uint8_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t *
                        crypto1_destroy(pcs);
                        cardAUTHKEY = 0xff;
                        LEDsoff();
                        crypto1_destroy(pcs);
                        cardAUTHKEY = 0xff;
                        LEDsoff();

-                       nonce++; 
+                       nonce = prand(); 

                        continue;
                }
                
                        continue;
                }
                


@@ -2710,21 +2736,64 @@ void Mifare1ksim(uint8_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t *
                                uint32_t nr = bytes_to_num(receivedCmd, 4);
                                uint32_t ar = bytes_to_num(&receivedCmd[4], 4);
 
                                uint32_t nr = bytes_to_num(receivedCmd, 4);
                                uint32_t ar = bytes_to_num(&receivedCmd[4], 4);
 

-                               // Collect AR/NR
-                               // if(ar_nr_collected < 2 && cardAUTHSC == 2){
-                               if(ar_nr_collected < 2) {                                       
-                                       // if(ar_nr_responses[2] != nr) {
-                                               ar_nr_responses[ar_nr_collected*4]   = cuid;
-                                               ar_nr_responses[ar_nr_collected*4+1] = nonce;
-                                               ar_nr_responses[ar_nr_collected*4+2] = nr;
-                                               ar_nr_responses[ar_nr_collected*4+3] = ar;
-                                               ar_nr_collected++;
-                                       // }                                    
-               
-                                       // Interactive mode flag, means we need to send ACK
-                                       finished = ( ((flags & FLAG_INTERACTIVE) == FLAG_INTERACTIVE)&& ar_nr_collected == 2);
+                               // Collect AR/NR per keytype & sector
+                               if ( (flags & FLAG_NR_AR_ATTACK) == FLAG_NR_AR_ATTACK ) {
+                                       
+                                       int8_t index = -1;
+                                       int8_t empty = -1;
+                                       for (uint8_t i = 0; i < ATTACK_KEY_COUNT; i++) {
+                                               // find which index to use
+                                               if ( (cardAUTHSC == ar_nr_nonces[i].sector) &&  (cardAUTHKEY == ar_nr_nonces[i].keytype)) 
+                                                       index = i;
+
+                                               // keep track of empty slots.
+                                               if ( ar_nr_nonces[i].state == EMPTY)
+                                                       empty = i;
+                                       }
+                                       // if no empty slots.  Choose first and overwrite.
+                                       if ( index == -1 ) {
+                                               if ( empty == -1 ) {
+                                                       index = 0;
+                                                       ar_nr_nonces[index].state = EMPTY;
+                                               } else {
+                                                       index = empty;
+                                               }
+                                       }
+
+                                       switch(ar_nr_nonces[index].state) {
+                                               case EMPTY: {
+                                                       // first nonce collect
+                                                       ar_nr_nonces[index].cuid = cuid;
+                                                       ar_nr_nonces[index].sector = cardAUTHSC;
+                                                       ar_nr_nonces[index].keytype = cardAUTHKEY;
+                                                       ar_nr_nonces[index].nonce = nonce;
+                                                       ar_nr_nonces[index].nr = nr;
+                                                       ar_nr_nonces[index].ar = ar;
+                                                       ar_nr_nonces[index].state = FIRST;
+                                                       break;
+                                               } 
+                                               case FIRST : { 
+                                                       // second nonce collect
+                                                       ar_nr_nonces[index].nonce2 = nonce;
+                                                       ar_nr_nonces[index].nr2 = nr;
+                                                       ar_nr_nonces[index].ar2 = ar;
+                                                       ar_nr_nonces[index].state = SECOND;
+
+                                                       // send to client
+                                                       cmd_send(CMD_ACK, CMD_SIMULATE_MIFARE_CARD, 0, 0, &ar_nr_nonces[index], sizeof(nonces_t));
+                                                       
+                                                       ar_nr_nonces[index].state = EMPTY;
+                                                       ar_nr_nonces[index].sector = 0;
+                                                       ar_nr_nonces[index].keytype = 0;
+                                                       break;
+                                               }
+                                               default: break;
+                                       }

                                }
                                }

+

                                /*
                                /*

+                               // Interactive mode flag, means we need to send ACK
+                               

                                crypto1_word(pcs, ar , 1);
                                cardRr = nr ^ crypto1_word(pcs, 0, 0);
                                
                                crypto1_word(pcs, ar , 1);
                                cardRr = nr ^ crypto1_word(pcs, 0, 0);
                                


@@ -2958,41 +3027,10 @@ void Mifare1ksim(uint8_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t *
                }
        }
 
                }
        }
 

-       // Interactive mode flag, means we need to send ACK
-       if((flags & FLAG_INTERACTIVE) == FLAG_INTERACTIVE) {
-               // May just aswell send the collected ar_nr in the response aswell
-               uint8_t len = ar_nr_collected * 4 * 4;
-               cmd_send(CMD_ACK, CMD_SIMULATE_MIFARE_CARD, len, 0, &ar_nr_responses, len);
-       }
-
-       if( ((flags & FLAG_NR_AR_ATTACK) == FLAG_NR_AR_ATTACK ) && MF_DBGLEVEL >= 1 ) {
-               if(ar_nr_collected > 1 ) {
-                       Dbprintf("Collected two pairs of AR/NR which can be used to extract keys from reader:");
-                       Dbprintf("../tools/mfkey/mfkey32v2.exe %08x %08x %08x %08x %08x %08x %08x",
-                                       ar_nr_responses[0], // CUID
-                                       ar_nr_responses[1], // NT1
-                                       ar_nr_responses[2], // NR1
-                                       ar_nr_responses[3], // AR1
-                                       // ar_nr_responses[4], // CUID2
-                                       ar_nr_responses[5],  // NT2
-                                       ar_nr_responses[6], // NR2
-                                       ar_nr_responses[7]  // AR2
-                               );
-               } else {
-                       Dbprintf("Failed to obtain two AR/NR pairs!");
-                       if(ar_nr_collected == 1 ) {
-                               Dbprintf("Only got these: UID=%08x, nonce=%08x, NR1=%08x, AR1=%08x",
-                                               ar_nr_responses[0], // CUID
-                                               ar_nr_responses[1], // NT
-                                               ar_nr_responses[2], // NR1
-                                               ar_nr_responses[3]  // AR1
-                                       );
-                       }
-               }
-       }
-       if (MF_DBGLEVEL >= 1) Dbprintf("Emulator stopped. Tracing: %d  trace length: %d ", tracing, BigBuf_get_traceLen());
+       if (MF_DBGLEVEL >= 1) 
+               Dbprintf("Emulator stopped. Tracing: %d  trace length: %d ", tracing, BigBuf_get_traceLen());

        
        

-       FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
+       cmd_send(CMD_ACK,1,0,0,0,0);    FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);

        LEDsoff();
        set_tracing(FALSE);
 }
        LEDsoff();
        set_tracing(FALSE);
 }