Add clearCommandBuffer before SendCommand

[proxmark3-svn] / armsrc / epa.c

diff --git a/armsrc/epa.c b/armsrc/epa.c
index 497bd9de618584d233929951d2bddea171bc05f7..0006d59d01c03fd4944caefef829771b1b8068fc 100644 (file)
--- a/armsrc/epa.c
+++ b/armsrc/epa.c
@@ -108,9 +108,9 @@ size_t EPA_Parse_CardAccess(uint8_t *data,
                if (data[index] == 0x31 || data[index] == 0x30) {
                        // enter the set (skip tag + length)
                        index += 2;
-                       // extended length
+                       // check for extended length
                        if ((data[index - 1] & 0x80) != 0) {
-                               index += (data[index] & 0x7F);
+                               index += (data[index-1] & 0x7F);
                        }
                }
                // OID
@@ -185,6 +185,7 @@ int EPA_Read_CardAccess(uint8_t *buffer, size_t max_length)
            || response_apdu[rapdu_length - 4] != 0x90
            || response_apdu[rapdu_length - 3] != 0x00)
        {
+               Dbprintf("epa - no select cardaccess");
                return -1;
        }
        
@@ -196,6 +197,7 @@ int EPA_Read_CardAccess(uint8_t *buffer, size_t max_length)
            || response_apdu[rapdu_length - 4] != 0x90
            || response_apdu[rapdu_length - 3] != 0x00)
        {
+               Dbprintf("epa - no read cardaccess");
                return -1;
        }
        
@@ -223,7 +225,6 @@ static void EPA_PACE_Collect_Nonce_Abort(uint8_t step, int func_return)
        
        // send the USB packet
   cmd_send(CMD_ACK,step,func_return,0,0,0);
-//UsbSendPacket((void *)ack, sizeof(UsbCommand));
 }
 
 //-----------------------------------------------------------------------------
@@ -243,7 +244,7 @@ void EPA_PACE_Collect_Nonce(UsbCommand *c)
         */
 
        // return value of a function
-       int func_return;
+       int func_return = 0;
 
 //     // initialize ack with 0s
 //     memset(ack->arg, 0, 12);
@@ -256,9 +257,6 @@ void EPA_PACE_Collect_Nonce(UsbCommand *c)
                return;
        }
 
-       // increase the timeout (at least some cards really do need this!)
-       iso14a_set_timeout(0x0002FFFF);
-       
        // read the CardAccess file
        // this array will hold the CardAccess file
        uint8_t card_access[256] = {0};
@@ -301,7 +299,6 @@ void EPA_PACE_Collect_Nonce(UsbCommand *c)
        // save received information
 //     ack->arg[1] = func_return;
 //     memcpy(ack->d.asBytes, nonce, func_return);
-//     UsbSendPacket((void *)ack, sizeof(UsbCommand));
   cmd_send(CMD_ACK,0,func_return,0,nonce,func_return);
 }
 
@@ -416,25 +413,25 @@ int EPA_PACE_MSE_Set_AT(pace_version_info_t pace_version_info, uint8_t password)
 //-----------------------------------------------------------------------------
 int EPA_Setup()
 {
-       // return code
+
        int return_code = 0;
-       // card UID
        uint8_t uid[10];
-       // card select information
+       uint8_t pps_response[3];
+       uint8_t pps_response_par[1];
        iso14a_card_select_t card_select_info;
+
        // power up the field
        iso14443a_setup(FPGA_HF_ISO14443A_READER_MOD);
 
        // select the card
        return_code = iso14443a_select_card(uid, &card_select_info, NULL);
        if (return_code != 1) {
+               Dbprintf("Epa: Can't select card");
                return 1;
        }
 
        // send the PPS request
        ReaderTransmit((uint8_t *)pps, sizeof(pps), NULL);
-       uint8_t pps_response[3];
-       uint8_t pps_response_par[1];
        return_code = ReaderReceive(pps_response, pps_response_par);
        if (return_code != 3 || pps_response[0] != 0xD0) {
                return return_code == 0 ? 2 : return_code;