lf search use new psk, small demod adjustments

[proxmark3-svn] / armsrc / iclass.c

diff --git a/armsrc/iclass.c b/armsrc/iclass.c
index 3844ab143f242d2c4554abb18f0163a14aa6e2b9..ea9af7d4f4fa11c9b84f15d4a8ea0ee6314bd02f 100644 (file)
--- a/armsrc/iclass.c
+++ b/armsrc/iclass.c
@@ -433,7 +433,6 @@ static RAMFUNC int ManchesterDecoding(int v)
        else {
                modulation = bit & Demod.syncBit;
                modulation |= ((bit << 1) ^ ((Demod.buffer & 0x08) >> 3)) & Demod.syncBit;
-               //modulation = ((bit << 1) ^ ((Demod.buffer & 0x08) >> 3)) & Demod.syncBit;
 
                Demod.samples += 4;
 
@@ -842,10 +841,7 @@ static int GetIClassCommandFromReader(uint8_t *received, int *len, int maxLen)
         }
         if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) {
             uint8_t b = (uint8_t)AT91C_BASE_SSC->SSC_RHR;
-                       /*if(OutOfNDecoding((b & 0xf0) >> 4)) {
-                               *len = Uart.byteCnt;
-                               return TRUE;
-                       }*/
+
                        if(OutOfNDecoding(b & 0x0f)) {
                                *len = Uart.byteCnt;
                                return TRUE;
@@ -1001,8 +997,6 @@ void SimulateIClass(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain
  */
 int doIClassSimulation(uint8_t csn[], int breakAfterMacReceived, uint8_t *reader_mac_buf)
 {
-
-
        // CSN followed by two CRC bytes
        uint8_t response2[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
        uint8_t response3[] = { 0,0,0,0,0,0,0,0,0,0};
@@ -1106,6 +1100,7 @@ int doIClassSimulation(uint8_t csn[], int breakAfterMacReceived, uint8_t *reader
                //Signal tracer
                // Can be used to get a trigger for an oscilloscope..
                LED_C_OFF();
+
                if(!GetIClassCommandFromReader(receivedCmd, &len, 100)) {
                        buttonPressed = true;
                        break;
@@ -1368,7 +1363,6 @@ void ReaderTransmitIClass(uint8_t* frame, int len)
        int samples = 0;
 
        // This is tied to other size changes
-       //      uint8_t* frame_addr = ((uint8_t*)BigBuf) + 2024;
        CodeIClassCommand(frame,len);
 
        // Select the card
@@ -1423,10 +1417,7 @@ static int GetIClassAnswer(uint8_t *receivedResponse, int maxLen, int *samples,
                        b = (uint8_t)AT91C_BASE_SSC->SSC_RHR;
                        skip = !skip;
                        if(skip) continue;
-                       /*if(ManchesterDecoding((b>>4) & 0xf)) {
-                               *samples = ((c - 1) << 3) + 4;
-                               return TRUE;
-                       }*/
+               
                        if(ManchesterDecoding(b & 0x0f)) {
                                *samples = c << 3;
                                return  TRUE;
@@ -1594,7 +1585,7 @@ void ReaderIClass(uint8_t arg0) {
 
 void ReaderIClass_Replay(uint8_t arg0, uint8_t *MAC) {
 
-       uint8_t card_data[24]={0};
+       uint8_t card_data[USB_CMD_DATA_SIZE]={0};
        uint16_t block_crc_LUT[255] = {0};
 
        {//Generate a lookup table for block crc
@@ -1667,7 +1658,10 @@ void ReaderIClass_Replay(uint8_t arg0, uint8_t *MAC) {
 
                cardsize = memory.k16 ? 255 : 32;
                WDT_HIT();
-
+               //Set card_data to all zeroes, we'll fill it with data
+               memset(card_data,0x0,USB_CMD_DATA_SIZE);
+               uint8_t failedRead =0;
+               uint8_t stored_data_length =0;
                //then loop around remaining blocks
                for(int block=0; block < cardsize; block++){
 
@@ -1683,14 +1677,47 @@ void ReaderIClass_Replay(uint8_t arg0, uint8_t *MAC) {
                                                resp[3], resp[4], resp[5],
                                                resp[6], resp[7]);
 
+                               //Fill up the buffer
+                               memcpy(card_data+stored_data_length,resp,8);
+                               stored_data_length += 8;
+
+                               if(stored_data_length +8 > USB_CMD_DATA_SIZE)
+                               {//Time to send this off and start afresh
+                                       cmd_send(CMD_ACK,
+                                                        stored_data_length,//data length
+                                                        failedRead,//Failed blocks?
+                                                        0,//Not used ATM
+                                                        card_data, stored_data_length);
+                                       //reset
+                                       stored_data_length = 0;
+                                       failedRead = 0;
+                               }
+
                        }else{
+                               failedRead = 1;
+                               stored_data_length +=8;//Otherwise, data becomes misaligned
                                Dbprintf("Failed to dump block %d", block);
-
                        }
                }
+               //Send off any remaining data
+               if(stored_data_length > 0)
+               {
+                       cmd_send(CMD_ACK,
+                                        stored_data_length,//data length
+                                        failedRead,//Failed blocks?
+                                        0,//Not used ATM
+                                        card_data, stored_data_length);
+               }
                //If we got here, let's break
                break;
        }
+       //Signal end of transmission
+       cmd_send(CMD_ACK,
+                        0,//data length
+                        0,//Failed blocks?
+                        0,//Not used ATM
+                        card_data, 0);
+
        LED_A_OFF();
 }