]> git.zerfleddert.de Git - proxmark3-svn/blobdiff - armsrc/iso14443b.c
CHG: some minor changes to the 14b, the read 14b lua,
[proxmark3-svn] / armsrc / iso14443b.c
index 0b9962e1e5cf5ffe727051163ede8e9a4c0d6aad..a47f30179270e0bf551aa98023065cac288a2131 100644 (file)
@@ -345,7 +345,7 @@ void SimulateIso14443bTag(void)
        // response to HLTB and ATTRIB
        static const uint8_t response2[] = {0x00, 0x78, 0xF0};
 
-       uint8_t parity[MAX_PARITY_SIZE];
+       uint8_t parity[MAX_PARITY_SIZE] = {0x00};
                                
        FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
 
@@ -383,14 +383,12 @@ void SimulateIso14443bTag(void)
 
        for(;;) {
 
-               if(!GetIso14443bCommandFromReader(receivedCmd, &len)) {
-               Dbprintf("button pressed, received %d commands", cmdsRecvd);
-               break;
+               if (!GetIso14443bCommandFromReader(receivedCmd, &len)) {
+                       Dbprintf("button pressed, received %d commands", cmdsRecvd);
+                       break;
                }
 
-               if (tracing) {
-                       LogTrace(receivedCmd, len, 0, 0, parity, TRUE);
-               }
+               LogTrace(receivedCmd, len, 0, 0, parity, TRUE);
 
                // Good, look at the command now.
                if ( (len == sizeof(cmd1) && memcmp(receivedCmd, cmd1, len) == 0)
@@ -410,14 +408,14 @@ void SimulateIso14443bTag(void)
                        // And print whether the CRC fails, just for good measure
                        uint8_t b1, b2;
                        if (len >= 3){ // if crc exists
-                       ComputeCrc14443(CRC_14443_B, receivedCmd, len-2, &b1, &b2);
-                       if(b1 != receivedCmd[len-2] || b2 != receivedCmd[len-1]) {
-                               // Not so good, try again.
-                               DbpString("+++CRC fail");
-               
-                       } else {
-                               DbpString("CRC passes");
-                       }
+                               ComputeCrc14443(CRC_14443_B, receivedCmd, len-2, &b1, &b2);
+                               if(b1 != receivedCmd[len-2] || b2 != receivedCmd[len-1]) {
+                                       // Not so good, try again.
+                                       DbpString("+++CRC fail");
+                       
+                               } else {
+                                       DbpString("CRC passes");
+                               }
                        }
                        //get rid of compiler warning
                        respCodeLen = 0;
@@ -462,7 +460,7 @@ void SimulateIso14443bTag(void)
                                AT91C_BASE_SSC->SSC_THR = respCode[i++];
                                FpgaSendQueueDelay = (uint8_t)AT91C_BASE_SSC->SSC_RHR;
                        }
-                               if(BUTTON_PRESS()) break;
+                       if(BUTTON_PRESS()) break;
                }
                
                // Ensure that the FPGA Delay Queue is empty before we switch to TAGSIM_LISTEN again:
@@ -475,8 +473,7 @@ void SimulateIso14443bTag(void)
                        }
                }
                
-               // trace the response:
-               if (tracing) LogTrace(resp, respLen, 0, 0, parity, FALSE);                      
+               LogTrace(resp, respLen, 0, 0, parity, FALSE);                   
        }
        FpgaDisableSscDma();
        set_tracing(FALSE);     
@@ -781,11 +778,11 @@ static void GetSamplesFor14443bDemod(int n, bool quiet)
 
        AT91C_BASE_PDC_SSC->PDC_PTCR = AT91C_PDC_RXTDIS;
 
-       if (!quiet && Demod.len == 0) {
-               Dbprintf("max behindby = %d, samples = %d, gotFrame = %d, Demod.len = %d, Demod.sumI = %d, Demod.sumQ = %d",
+       if (!quiet) {
+               Dbprintf("max behindby = %d, samples = %d, gotFrame = %s, Demod.len = %d, Demod.sumI = %d, Demod.sumQ = %d",
                        max,
                        samples, 
-                       gotFrame
+                       (gotFrame) ? "true" : "false"
                        Demod.len, 
                        Demod.sumI, 
                        Demod.sumQ
@@ -793,8 +790,8 @@ static void GetSamplesFor14443bDemod(int n, bool quiet)
        }
 
        //Tracing
-       if (tracing && Demod.len > 0) {
-               uint8_t parity[MAX_PARITY_SIZE];
+       if (Demod.len > 0) {
+               uint8_t parity[MAX_PARITY_SIZE] = {0x00};
                LogTrace(Demod.output, Demod.len, 0, 0, parity, FALSE);
        }
 }
@@ -998,7 +995,7 @@ int iso14443b_select_card()
 void iso14443b_setup() {
 
        FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
-
+       
        BigBuf_free();
        // Set up the synchronous serial port
        FpgaSetupSsc();
@@ -1012,7 +1009,7 @@ void iso14443b_setup() {
        //SpinDelay(100);
 
        // Start the timer
-       //StartCountSspClk();
+       StartCountSspClk();
 
        DemodReset();
        UartReset();
@@ -1216,7 +1213,7 @@ void RAMFUNC SnoopIso14443b(void)
        upTo = dmaBuf;
        lastRxCounter = ISO14443B_DMA_BUFFER_SIZE;
        FpgaSetupSscDma((uint8_t*) dmaBuf, ISO14443B_DMA_BUFFER_SIZE);
-       uint8_t parity[MAX_PARITY_SIZE];
+       uint8_t parity[MAX_PARITY_SIZE] = {0x00};
 
        bool TagIsActive = FALSE;
        bool ReaderIsActive = FALSE;
@@ -1245,10 +1242,12 @@ void RAMFUNC SnoopIso14443b(void)
                                Dbprintf("blew circular buffer! behindBy=%d", behindBy);
                                break;
                        }
+                       
                        if(!tracing) {
-                               DbpString("Reached trace limit");
+                               DbpString("Trace full");
                                break;
                        }
+                       
                        if(BUTTON_PRESS()) {
                                DbpString("cancelled");
                                break;
@@ -1258,26 +1257,26 @@ void RAMFUNC SnoopIso14443b(void)
                samples += 2;
 
                if (!TagIsActive) {                                                     // no need to try decoding reader data if the tag is sending
-                       if(Handle14443bUartBit(ci & 0x01)) {
-                       if(triggered && tracing) {
+                       if (Handle14443bUartBit(ci & 0x01)) {
+                               if ( triggered)
                                        LogTrace(Uart.output, Uart.byteCnt, samples, samples, parity, TRUE);
+
+                               /* And ready to receive another command. */
+                               UartReset();
+                               /* And also reset the demod code, which might have been */
+                               /* false-triggered by the commands from the reader. */
+                               DemodReset();
                        }
-                       /* And ready to receive another command. */
-                       UartReset();
-                       /* And also reset the demod code, which might have been */
-                       /* false-triggered by the commands from the reader. */
-                       DemodReset();
-               }
-                       if(Handle14443bUartBit(cq & 0x01)) {
-                       if(triggered && tracing) {
+                       if (Handle14443bUartBit(cq & 0x01)) {
+                               if (triggered)
                                        LogTrace(Uart.output, Uart.byteCnt, samples, samples, parity, TRUE);
-                       }
-                       /* And ready to receive another command. */
-                       UartReset();
-                       /* And also reset the demod code, which might have been */
-                       /* false-triggered by the commands from the reader. */
-                       DemodReset();
-               }
+
+                                       /* And ready to receive another command. */
+                                       UartReset();
+                                       /* And also reset the demod code, which might have been */
+                                       /* false-triggered by the commands from the reader. */
+                                       DemodReset();
+                               }
                        ReaderIsActive = (Uart.state > STATE_GOT_FALLING_EDGE_OF_SOF);
                }
 
@@ -1285,25 +1284,21 @@ void RAMFUNC SnoopIso14443b(void)
                        // is this | 0x01 the error?   & 0xfe  in https://github.com/Proxmark/proxmark3/issues/103
                        if(Handle14443bSamplesDemod(ci & 0xfe, cq & 0xfe)) {
 
-                       //Use samples as a time measurement
-                       if(tracing)
-                       {
-                               //uint8_t parity[MAX_PARITY_SIZE];
+                               //Use samples as a time measurement
                                LogTrace(Demod.output, Demod.len, samples, samples, parity, FALSE);
-                       }
-                       triggered = TRUE;
 
-                       // And ready to receive another response.
-                       DemodReset();
-               }
+                               triggered = TRUE;
+
+                               // And ready to receive another response.
+                               DemodReset();
+                       }
                        TagIsActive = (Demod.state > DEMOD_GOT_FALLING_EDGE_OF_SOF);
                }
        }
 
        FpgaDisableSscDma();
        LEDsoff();
-       set_tracing(FALSE);     
-               
+       
        AT91C_BASE_PDC_SSC->PDC_PTCR = AT91C_PDC_RXTDIS;
        DbpString("Snoop statistics:");
        Dbprintf("  Max behind by: %i", maxBehindBy);
@@ -1311,6 +1306,7 @@ void RAMFUNC SnoopIso14443b(void)
        Dbprintf("  Uart ByteCnt: %i", Uart.byteCnt);
        Dbprintf("  Uart ByteCntMax: %i", Uart.byteCntMax);
        Dbprintf("  Trace length: %i", BigBuf_get_traceLen());
+       set_tracing(FALSE);     
 }
 
 
@@ -1328,6 +1324,11 @@ void RAMFUNC SnoopIso14443b(void)
  */
 void SendRawCommand14443B(uint32_t datalen, uint32_t recv, uint8_t powerfield, uint8_t data[])
 {
+       // param ISO_
+       // param ISO_CONNECT
+       // param ISO14A_NO_DISCONNECT
+       //if (param & ISO14A_NO_DISCONNECT)
+       // return;
        iso14443b_setup();
        
        if ( datalen == 0 && recv == 0 && powerfield == 0){
@@ -1337,13 +1338,13 @@ void SendRawCommand14443B(uint32_t datalen, uint32_t recv, uint8_t powerfield, u
                CodeAndTransmit14443bAsReader(data, datalen);
        }
 
-       if(recv) {
+       if (recv) {
                GetSamplesFor14443bDemod(RECEIVE_SAMPLES_TIMEOUT, FALSE);
                uint16_t iLen = MIN(Demod.len, USB_CMD_DATA_SIZE);
                cmd_send(CMD_ACK, iLen, 0, 0, Demod.output, iLen);
        }
        
-       if(!powerfield) {
+       if (!powerfield) {
                FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
                FpgaDisableSscDma();
                set_tracing(FALSE);
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