FIX: old bug back, and now fixed again. @marshmellow42

[proxmark3-svn] / armsrc / mifaredesfire.c

diff --git a/armsrc/mifaredesfire.c b/armsrc/mifaredesfire.c
index 85e3175149fcebb2aebc2bf70976cdae97a21fec..fb48647762b62035147fa71153651cc7c769be5e 100644 (file)
--- a/armsrc/mifaredesfire.c
+++ b/armsrc/mifaredesfire.c
@@ -1,11 +1,13 @@
 #include "mifaredesfire.h"
 #include "des.h"
 #include "mifaredesfire.h"
 #include "des.h"

+#include "BigBuf.h"

 
 #define MAX_APPLICATION_COUNT 28
 #define MAX_FILE_COUNT 16
 
 #define MAX_APPLICATION_COUNT 28
 #define MAX_FILE_COUNT 16

-#define MAX_FRAME_SIZE 60
+#define MAX_DESFIRE_FRAME_SIZE 60

 #define NOT_YET_AUTHENTICATED 255
 #define NOT_YET_AUTHENTICATED 255

-#define FRAME_PAYLOAD_SIZE (MAX_FRAME_SIZE - 5)
+#define FRAME_PAYLOAD_SIZE (MAX_DESFIRE_FRAME_SIZE - 5)
+#define RECEIVE_SIZE 64

 
 // the block number for the ISO14443-4 PCB
 uint8_t pcb_blocknum = 0;
 
 // the block number for the ISO14443-4 PCB
 uint8_t pcb_blocknum = 0;


@@ -17,25 +19,20 @@ static  uint8_t deselect_cmd[] = {0xc2,0xe0,0xb4};
 //static uint8_t __res[MAX_FRAME_SIZE];
 
 bool InitDesfireCard(){
 //static uint8_t __res[MAX_FRAME_SIZE];
 
 bool InitDesfireCard(){

-
-       // Make sure it is off.
-//     FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
-//     SpinDelay(300);

        
        

-       byte_t cardbuf[USB_CMD_DATA_SIZE];
-       memset(cardbuf,0,sizeof(cardbuf));
+       byte_t cardbuf[USB_CMD_DATA_SIZE] = {0x00};
+
+       iso14a_card_select_t *card = (iso14a_card_select_t*)cardbuf;

        
        

-       iso14a_set_tracing(TRUE);
+       set_tracing(TRUE);

        iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
        
        iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
        

-       iso14a_card_select_t *card = (iso14a_card_select_t*)cardbuf;

        int len = iso14443a_select_card(NULL,card,NULL);
 
        if (!len) {
        int len = iso14443a_select_card(NULL,card,NULL);
 
        if (!len) {

-               if (MF_DBGLEVEL >= 1) {
+               if (MF_DBGLEVEL >= MF_DBG_ERROR)

                        Dbprintf("Can't select card");
                        Dbprintf("Can't select card");

-               }
-               OnError();
+               OnError(1);

                return false;
        }
        return true;
                return false;
        }
        return true;


@@ -59,7 +56,7 @@ void MifareSendCommand(uint8_t arg0, uint8_t arg1, uint8_t *datain){
        */
        uint8_t flags = arg0;
        size_t datalen = arg1;
        */
        uint8_t flags = arg0;
        size_t datalen = arg1;

-       uint8_t resp[RECV_RES_SIZE];
+       uint8_t resp[RECEIVE_SIZE];

        memset(resp,0,sizeof(resp));
        
        if (MF_DBGLEVEL >= 4) {
        memset(resp,0,sizeof(resp));
        
        if (MF_DBGLEVEL >= 4) {


@@ -69,7 +66,7 @@ void MifareSendCommand(uint8_t arg0, uint8_t arg1, uint8_t *datain){
        }
        
        if ( flags & CLEARTRACE ){
        }
        
        if ( flags & CLEARTRACE ){

-               iso14a_clear_trace();
+               clear_trace();

        }
        
        if ( flags & INIT ){
        }
        
        if ( flags & INIT ){


@@ -78,12 +75,12 @@ void MifareSendCommand(uint8_t arg0, uint8_t arg1, uint8_t *datain){
        }
        
        int len = DesfireAPDU(datain, datalen, resp);
        }
        
        int len = DesfireAPDU(datain, datalen, resp);

-               if (MF_DBGLEVEL >= 4) {
-                       print_result("ERR <--: ", resp, len);   
-               }
+       if (MF_DBGLEVEL >= 4) {
+               print_result("ERR <--: ", resp, len);
+       }

 
        if ( !len ) {
 
        if ( !len ) {

-               OnError();
+               OnError(2);

                return;
        }
        
                return;
        }
        


@@ -100,13 +97,9 @@ void MifareSendCommand(uint8_t arg0, uint8_t arg1, uint8_t *datain){
 void MifareDesfireGetInformation(){
                
        int len = 0;
 void MifareDesfireGetInformation(){
                
        int len = 0;

-       uint8_t resp[USB_CMD_DATA_SIZE];
-       uint8_t dataout[USB_CMD_DATA_SIZE];
-       byte_t cardbuf[USB_CMD_DATA_SIZE];
-       
-       memset(resp,0,sizeof(resp));
-       memset(dataout,0, sizeof(dataout));
-       memset(cardbuf,0,sizeof(cardbuf));
+       uint8_t resp[USB_CMD_DATA_SIZE] = {0x00};
+       uint8_t dataout[USB_CMD_DATA_SIZE] = {0x00};
+       byte_t cardbuf[USB_CMD_DATA_SIZE] = {0x00};

        
        /*
                1 = PCB                                 1
        
        /*
                1 = PCB                                 1


@@ -117,18 +110,18 @@ void MifareDesfireGetInformation(){
                PCB == 0x0A because sending CID byte.
                CID == 0x00 first card?         
        */
                PCB == 0x0A because sending CID byte.
                CID == 0x00 first card?         
        */

-       iso14a_clear_trace();
-       iso14a_set_tracing(TRUE);
+       clear_trace();
+       set_tracing(TRUE);

        iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 
        // card select - information
        iso14a_card_select_t *card = (iso14a_card_select_t*)cardbuf;
        byte_t isOK = iso14443a_select_card(NULL, card, NULL);
        iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 
        // card select - information
        iso14a_card_select_t *card = (iso14a_card_select_t*)cardbuf;
        byte_t isOK = iso14443a_select_card(NULL, card, NULL);

-       if (isOK != 1) {
-               if (MF_DBGLEVEL >= 1) {
+       if ( isOK == 0) {
+               if (MF_DBGLEVEL >= MF_DBG_ERROR) {

                        Dbprintf("Can't select card");
                }
                        Dbprintf("Can't select card");
                }

-               OnError();
+               OnError(1);

                return;
        }
 
                return;
        }
 


@@ -144,7 +137,7 @@ void MifareDesfireGetInformation(){
        len =  DesfireAPDU(cmd, cmd_len, resp);
        if ( !len ) {
                print_result("ERROR <--: ", resp, len); 
        len =  DesfireAPDU(cmd, cmd_len, resp);
        if ( !len ) {
                print_result("ERROR <--: ", resp, len); 

-               OnError();
+               OnError(2);

                return;
        }
        
                return;
        }
        


@@ -157,7 +150,7 @@ void MifareDesfireGetInformation(){
        len =  DesfireAPDU(cmd, cmd_len, resp);
        if ( !len ) {
                print_result("ERROR <--: ", resp, len); 
        len =  DesfireAPDU(cmd, cmd_len, resp);
        if ( !len ) {
                print_result("ERROR <--: ", resp, len); 

-               OnError();
+               OnError(2);

                return;
        }       
        
                return;
        }       
        


@@ -169,7 +162,7 @@ void MifareDesfireGetInformation(){
        len =  DesfireAPDU(cmd, cmd_len, resp);
        if ( !len ) {
                print_result("ERROR <--: ", resp, len); 
        len =  DesfireAPDU(cmd, cmd_len, resp);
        if ( !len ) {
                print_result("ERROR <--: ", resp, len); 

-               OnError();
+               OnError(2);

                return;
        }
        
                return;
        }
        


@@ -192,7 +185,6 @@ void MifareDES_Auth1(uint8_t mode, uint8_t algo, uint8_t keyno,  uint8_t *datain
        //uint8_t new_key_data8[8]  = { 0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77};
        //uint8_t new_key_data16[16]  = { 0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xAA,0xBB,0xCC,0xDD,0xEE,0xFF};
 
        //uint8_t new_key_data8[8]  = { 0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77};
        //uint8_t new_key_data16[16]  = { 0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xAA,0xBB,0xCC,0xDD,0xEE,0xFF};
 

-       //uint8_t* bigbuffer = mifare_get_bigbufptr();

        uint8_t resp[256] = {0x00};
        uint8_t IV[16] = {0x00};
 
        uint8_t resp[256] = {0x00};
        uint8_t IV[16] = {0x00};
 


@@ -206,10 +198,6 @@ void MifareDES_Auth1(uint8_t mode, uint8_t algo, uint8_t keyno,  uint8_t *datain
        uint8_t encBoth[32] = {0x00};
 
        InitDesfireCard();
        uint8_t encBoth[32] = {0x00};
 
        InitDesfireCard();

-
-       LED_A_ON();
-       LED_B_OFF();
-       LED_C_OFF();

        
        // 3 olika sätt att authenticera.   AUTH (CRC16) , AUTH_ISO (CRC32) , AUTH_AES (CRC32)
        // 4 olika crypto algo   DES, 3DES, 3K3DES, AES
        
        // 3 olika sätt att authenticera.   AUTH (CRC16) , AUTH_ISO (CRC32) , AUTH_AES (CRC32)
        // 4 olika crypto algo   DES, 3DES, 3K3DES, AES


@@ -218,7 +206,9 @@ void MifareDES_Auth1(uint8_t mode, uint8_t algo, uint8_t keyno,  uint8_t *datain
        // des, nyckel 0, 
        switch (mode){
         case 1:{
        // des, nyckel 0, 
        switch (mode){
         case 1:{

-            uint8_t keybytes[8];
+            if (algo == 1) {
+
+            uint8_t keybytes[8] = {0x00};

             uint8_t RndA[8] = {0x00};
             uint8_t RndB[8] = {0x00};
             
             uint8_t RndA[8] = {0x00};
             uint8_t RndB[8] = {0x00};
             


@@ -236,17 +226,17 @@ void MifareDES_Auth1(uint8_t mode, uint8_t algo, uint8_t keyno,  uint8_t *datain
             cmd[1] = keyno;  //keynumber
             len = DesfireAPDU(cmd, 2, resp);
             if ( !len ) {
             cmd[1] = keyno;  //keynumber
             len = DesfireAPDU(cmd, 2, resp);
             if ( !len ) {

-                if (MF_DBGLEVEL >= 1) {
+                if (MF_DBGLEVEL >= MF_DBG_ERROR) {

                     DbpString("Authentication failed. Card timeout.");
                 }
                     DbpString("Authentication failed. Card timeout.");
                 }

-                OnError();
+                OnError(3);

                 return;
             }
             
             if ( resp[2] == 0xaf ){
             } else {
                 DbpString("Authetication failed. Invalid key number.");
                 return;
             }
             
             if ( resp[2] == 0xaf ){
             } else {
                 DbpString("Authetication failed. Invalid key number.");

-                OnError();
+                OnError(3);

                 return;
             }
             
                 return;
             }
             


@@ -256,6 +246,7 @@ void MifareDES_Auth1(uint8_t mode, uint8_t algo, uint8_t keyno,  uint8_t *datain
             memcpy(RndB, decRndB, 8);
             rol(decRndB,8);
             
             memcpy(RndB, decRndB, 8);
             rol(decRndB,8);
             

+            // This should be random

             uint8_t decRndA[8] = {0x00};
             memcpy(RndA, decRndA, 8);
             uint8_t encRndA[8] = {0x00};
             uint8_t decRndA[8] = {0x00};
             memcpy(RndA, decRndA, 8);
             uint8_t encRndA[8] = {0x00};


@@ -266,7 +257,6 @@ void MifareDES_Auth1(uint8_t mode, uint8_t algo, uint8_t keyno,  uint8_t *datain
             
             for (int x = 0; x < 8; x++) {
                 decRndB[x] = decRndB[x] ^ encRndA[x];
             
             for (int x = 0; x < 8; x++) {
                 decRndB[x] = decRndB[x] ^ encRndA[x];

-

             }
             
             des_dec(&encRndB, &decRndB, key->data);
             }
             
             des_dec(&encRndB, &decRndB, key->data);


@@ -278,10 +268,10 @@ void MifareDES_Auth1(uint8_t mode, uint8_t algo, uint8_t keyno,  uint8_t *datain
             
             len = DesfireAPDU(cmd, 17, resp);
             if ( !len ) {
             
             len = DesfireAPDU(cmd, 17, resp);
             if ( !len ) {

-                if (MF_DBGLEVEL >= 1) {
+                if (MF_DBGLEVEL >= MF_DBG_ERROR) {

                     DbpString("Authentication failed. Card timeout.");
                 }
                     DbpString("Authentication failed. Card timeout.");
                 }

-                OnError();
+                OnError(3);

                 return;
             }
             
                 return;
             }
             


@@ -290,26 +280,72 @@ void MifareDES_Auth1(uint8_t mode, uint8_t algo, uint8_t keyno,  uint8_t *datain
                 struct desfire_key sessionKey = {0};
                 desfirekey_t skey = &sessionKey;
                 Desfire_session_key_new( RndA, RndB , key, skey );
                 struct desfire_key sessionKey = {0};
                 desfirekey_t skey = &sessionKey;
                 Desfire_session_key_new( RndA, RndB , key, skey );

-                print_result("SESSION : ", skey->data, 8);
+                //print_result("SESSION : ", skey->data, 8);
+                
+                memcpy(encRndA, resp+3, 8);
+                des_dec(&encRndA, &encRndA, key->data);
+                rol(decRndA,8);
+                for (int x = 0; x < 8; x++) {
+                    if (decRndA[x] != encRndA[x]) {
+                        DbpString("Authetication failed. Cannot varify PICC.");
+                        OnError(4);
+                        return;
+                    }
+                }
+                
+                //Change the selected key to a new value.
+                /*
+                 
+                cmd[0] = CHANGE_KEY;
+                cmd[1] = keyno;
+                
+                uint8_t newKey[16] = {0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77};
+                
+                uint8_t first, second;
+                uint8_t buff1[8] = {0x00};
+                uint8_t buff2[8] = {0x00};
+                uint8_t buff3[8] = {0x00};
+                
+                memcpy(buff1,newKey, 8);
+                memcpy(buff2,newKey + 8, 8);
+                
+                ComputeCrc14443(CRC_14443_A, newKey, 16, &first, &second);
+                memcpy(buff3, &first, 1);
+                memcpy(buff3 + 1, &second, 1);
+                
+                des_dec(&buff1, &buff1, skey->data);
+                memcpy(cmd+2,buff1,8);
+                
+                for (int x = 0; x < 8; x++) {
+                    buff2[x] = buff2[x] ^ buff1[x];
+                }
+                des_dec(&buff2, &buff2, skey->data);
+                memcpy(cmd+10,buff2,8);
+                
+                for (int x = 0; x < 8; x++) {
+                    buff3[x] = buff3[x] ^ buff2[x];
+                }
+                des_dec(&buff3, &buff3, skey->data);
+                memcpy(cmd+18,buff3,8);
+                
+                // The command always times out on the first attempt, this will retry until a response
+                // is recieved.
+                len = 0;
+                while(!len) {
+                    len = DesfireAPDU(cmd,26,resp);
+                }
+                */
+                
+                OnSuccess();
+                cmd_send(CMD_ACK,1,0,0,skey->data,8);

                 
             } else {
                 DbpString("Authetication failed.");
                 
             } else {
                 DbpString("Authetication failed.");

-                OnError();
+                OnError(6);

                 return;
             }
             
                 return;
             }
             

-            memcpy(encRndA, resp+3, 8);
-            des_dec(&encRndA, &encRndA, key->data);
-            rol(decRndA,8);
-            for (int x = 0; x < 8; x++) {
-                if (decRndA[x] != encRndA[x]) {
-                    DbpString("Authetication failed. Cannot varify PICC.");
-                    OnError();
-                    return;
-                }

             }
             }

-            
-            

             }
                        break;
                case 2:
             }
                        break;
                case 2:


@@ -318,14 +354,14 @@ void MifareDES_Auth1(uint8_t mode, uint8_t algo, uint8_t keyno,  uint8_t *datain
                case 3:{
                
                        //defaultkey
                case 3:{
                
                        //defaultkey

-                       uint8_t keybytes[16];
+                       uint8_t keybytes[16] = {0x00};

                        if (datain[1] == 0xff){
                                memcpy(keybytes,PICC_MASTER_KEY16,16); 
                        } else{
                                memcpy(keybytes, datain+1, datalen);
                        }
                        
                        if (datain[1] == 0xff){
                                memcpy(keybytes,PICC_MASTER_KEY16,16); 
                        } else{
                                memcpy(keybytes, datain+1, datalen);
                        }
                        

-                       struct desfire_key defaultkey = {0};
+                       struct desfire_key defaultkey = {0x00};

                        desfirekey_t key = &defaultkey;
                        Desfire_aes_key_new( keybytes, key);
                
                        desfirekey_t key = &defaultkey;
                        Desfire_aes_key_new( keybytes, key);
                


@@ -334,7 +370,7 @@ void MifareDES_Auth1(uint8_t mode, uint8_t algo, uint8_t keyno,  uint8_t *datain
                                if( MF_DBGLEVEL >= 4) {
                                        Dbprintf("AES context failed to init");
                                }
                                if( MF_DBGLEVEL >= 4) {
                                        Dbprintf("AES context failed to init");
                                }

-                               OnError();
+                               OnError(7);

                                return;
                        }
                        
                                return;
                        }
                        


@@ -342,10 +378,10 @@ void MifareDES_Auth1(uint8_t mode, uint8_t algo, uint8_t keyno,  uint8_t *datain
                        cmd[1] = 0x00;  //keynumber
                        len = DesfireAPDU(cmd, 2, resp);
                        if ( !len ) {
                        cmd[1] = 0x00;  //keynumber
                        len = DesfireAPDU(cmd, 2, resp);
                        if ( !len ) {

-                               if (MF_DBGLEVEL >= 1) {
+                               if (MF_DBGLEVEL >= MF_DBG_ERROR) {

                                        DbpString("Authentication failed. Card timeout.");
                                }
                                        DbpString("Authentication failed. Card timeout.");
                                }

-                               OnError();
+                               OnError(3);

                                return;
                        }
                        
                                return;
                        }
                        


@@ -363,10 +399,10 @@ void MifareDES_Auth1(uint8_t mode, uint8_t algo, uint8_t keyno,  uint8_t *datain
                        
                        len = DesfireAPDU(cmd, 33, resp);  // 1 + 32 == 33
                        if ( !len ) {
                        
                        len = DesfireAPDU(cmd, 33, resp);  // 1 + 32 == 33
                        if ( !len ) {

-                               if (MF_DBGLEVEL >= 1) {
+                               if (MF_DBGLEVEL >= MF_DBG_ERROR) {

                                        DbpString("Authentication failed. Card timeout.");
                                }
                                        DbpString("Authentication failed. Card timeout.");
                                }

-                OnError();
+                OnError(3);

                                return;
                        }
                        
                                return;
                        }
                        


@@ -378,10 +414,9 @@ void MifareDES_Auth1(uint8_t mode, uint8_t algo, uint8_t keyno,  uint8_t *datain
                                print_result("SESSION : ", skey->data, 16);
                        } else {
                                DbpString("Authetication failed.");
                                print_result("SESSION : ", skey->data, 16);
                        } else {
                                DbpString("Authetication failed.");

-                               OnError();
+                               OnError(7);

                                return;
                        }
                                return;
                        }

-                       

                        break;
                }       
        }
                        break;
                }       
        }


@@ -396,9 +431,12 @@ void MifareDES_Auth1(uint8_t mode, uint8_t algo, uint8_t keyno,  uint8_t *datain
 // dataout = pointer to response data array
 int DesfireAPDU(uint8_t *cmd, size_t cmd_len, uint8_t *dataout){
 
 // dataout = pointer to response data array
 int DesfireAPDU(uint8_t *cmd, size_t cmd_len, uint8_t *dataout){
 

-       uint32_t status = 0;
+       size_t len = 0;

        size_t wrappedLen = 0;
        size_t wrappedLen = 0;

-       uint8_t wCmd[USB_CMD_DATA_SIZE] = {0};
+       uint8_t wCmd[USB_CMD_DATA_SIZE] = {0x00};
+       
+       uint8_t resp[MAX_FRAME_SIZE];
+    uint8_t par[MAX_PARITY_SIZE];

        
        wrappedLen = CreateAPDU( cmd, cmd_len, wCmd);
        
        
        wrappedLen = CreateAPDU( cmd, cmd_len, wCmd);
        


@@ -407,9 +445,9 @@ int DesfireAPDU(uint8_t *cmd, size_t cmd_len, uint8_t *dataout){
        }
        ReaderTransmit( wCmd, wrappedLen, NULL);
 
        }
        ReaderTransmit( wCmd, wrappedLen, NULL);
 

-       status = ReaderReceive(dataout);
+       len = ReaderReceive(resp, par);

        
        

-       if( status == 0x00){
+       if( len == 0x00 ){

                if (MF_DBGLEVEL >= 4) {
                        Dbprintf("fukked");
                }
                if (MF_DBGLEVEL >= 4) {
                        Dbprintf("fukked");
                }


@@ -417,14 +455,16 @@ int DesfireAPDU(uint8_t *cmd, size_t cmd_len, uint8_t *dataout){
        }
        // if we received an I- or R(ACK)-Block with a block number equal to the
        // current block number, toggle the current block number
        }
        // if we received an I- or R(ACK)-Block with a block number equal to the
        // current block number, toggle the current block number

-       else if (status >= 4 // PCB+CID+CRC = 4 bytes
-                && ((dataout[0] & 0xC0) == 0 // I-Block
-                    || (dataout[0] & 0xD0) == 0x80) // R-Block with ACK bit set to 0
-                && (dataout[0] & 0x01) == pcb_blocknum) // equal block numbers
+       else if (len >= 4 // PCB+CID+CRC = 4 bytes
+                && ((resp[0] & 0xC0) == 0 // I-Block
+                    || (resp[0] & 0xD0) == 0x80) // R-Block with ACK bit set to 0
+                && (resp[0] & 0x01) == pcb_blocknum) // equal block numbers

        {
                pcb_blocknum ^= 1;  //toggle next block 
        }
        {
                pcb_blocknum ^= 1;  //toggle next block 
        }

-       return status;
+
+       memcpy(dataout, resp, len);
+       return len;

 }      
 
 // CreateAPDU
 }      
 
 // CreateAPDU


@@ -437,7 +477,7 @@ size_t CreateAPDU( uint8_t *datain, size_t len, uint8_t *dataout){
        
        cmd[0] = 0x0A;  //  0x0A = skicka cid,  0x02 = ingen cid. Särskilda bitar //
        cmd[0] |= pcb_blocknum; // OR the block number into the PCB     
        
        cmd[0] = 0x0A;  //  0x0A = skicka cid,  0x02 = ingen cid. Särskilda bitar //
        cmd[0] |= pcb_blocknum; // OR the block number into the PCB     

-       cmd[1] = 0x00;  //  CID: 0x00 //FIXME: allow multiple selected cards
+       cmd[1] = 0x00;  //  CID: 0x00 //TODO: allow multiple selected cards

        
        memcpy(cmd+2, datain, len);
        AppendCrc14443a(cmd, len+2);
        
        memcpy(cmd+2, datain, len);
        AppendCrc14443a(cmd, len+2);


@@ -459,10 +499,11 @@ void OnSuccess(){
        LEDsoff();
 }
 
        LEDsoff();
 }
 

-void OnError(){
+void OnError(uint8_t reason){

        pcb_blocknum = 0;
        ReaderTransmit(deselect_cmd, 3 , NULL);
        pcb_blocknum = 0;
        ReaderTransmit(deselect_cmd, 3 , NULL);

+       

        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);

-       cmd_send(CMD_ACK,0,0,0,0,0);
+       cmd_send(CMD_ACK,0,reason,0,0,0);

        LEDsoff();
 }
        LEDsoff();
 }