Merge branch 'master' of https://github.com/Proxmark/proxmark3

[proxmark3-svn] / armsrc / iso14443a.c

diff --git a/armsrc/iso14443a.c b/armsrc/iso14443a.c
index 103f25e691cfa6106cfabe7ffd47ced9e29720d9..a7102168e09d75522e1e35ac02526136a464a57d 100644 (file)
--- a/armsrc/iso14443a.c
+++ b/armsrc/iso14443a.c
@@ -20,10 +20,9 @@
 #include "iso14443a.h"
 #include "crapto1.h"
 #include "mifareutil.h"
 #include "iso14443a.h"
 #include "crapto1.h"
 #include "mifareutil.h"

-
+#include "BigBuf.h"

 static uint32_t iso14a_timeout;
 int rsamples = 0;
 static uint32_t iso14a_timeout;
 int rsamples = 0;

-int tracing = TRUE;

 uint8_t trigger = 0;
 // the block number for the ISO14443-4 PCB
 static uint8_t iso14_pcb_blocknum = 0;
 uint8_t trigger = 0;
 // the block number for the ISO14443-4 PCB
 static uint8_t iso14_pcb_blocknum = 0;


@@ -146,16 +145,7 @@ void iso14a_set_trigger(bool enable) {
        trigger = enable;
 }
 
        trigger = enable;
 }
 

-void iso14a_clear_trace() {
-       uint8_t *trace = BigBuf_get_addr();
-       uint16_t max_traceLen = BigBuf_max_traceLen();
-       memset(trace, 0x44, max_traceLen);
-       traceLen = 0;
-}

 
 

-void iso14a_set_tracing(bool enable) {
-       tracing = enable;
-}

 
 void iso14a_set_timeout(uint32_t timeout) {
        iso14a_timeout = timeout;
 
 void iso14a_set_timeout(uint32_t timeout) {
        iso14a_timeout = timeout;


@@ -199,63 +189,6 @@ void AppendCrc14443a(uint8_t* data, int len)
        ComputeCrc14443(CRC_14443_A,data,len,data+len,data+len+1);
 }
 
        ComputeCrc14443(CRC_14443_A,data,len,data+len,data+len+1);
 }
 

-// The function LogTrace() is also used by the iClass implementation in iClass.c
-bool RAMFUNC LogTrace(const uint8_t *btBytes, uint16_t iLen, uint32_t timestamp_start, uint32_t timestamp_end, uint8_t *parity, bool readerToTag)
-{
-       if (!tracing) return FALSE;
-       
-       uint8_t *trace = BigBuf_get_addr();
-       uint16_t num_paritybytes = (iLen-1)/8 + 1;      // number of valid paritybytes in *parity
-       uint16_t duration = timestamp_end - timestamp_start;
-
-       // Return when trace is full
-       uint16_t max_traceLen = BigBuf_max_traceLen();
-       if (traceLen + sizeof(iLen) + sizeof(timestamp_start) + sizeof(duration) + num_paritybytes + iLen >= max_traceLen) {
-               tracing = FALSE;        // don't trace any more
-               return FALSE;
-       }
-       
-       // Traceformat:
-       // 32 bits timestamp (little endian)
-       // 16 bits duration (little endian)
-       // 16 bits data length (little endian, Highest Bit used as readerToTag flag)
-       // y Bytes data
-       // x Bytes parity (one byte per 8 bytes data)
-       
-       // timestamp (start)
-       trace[traceLen++] = ((timestamp_start >> 0) & 0xff);
-       trace[traceLen++] = ((timestamp_start >> 8) & 0xff);
-       trace[traceLen++] = ((timestamp_start >> 16) & 0xff);
-       trace[traceLen++] = ((timestamp_start >> 24) & 0xff);
-       
-       // duration
-       trace[traceLen++] = ((duration >> 0) & 0xff);
-       trace[traceLen++] = ((duration >> 8) & 0xff);
-
-       // data length
-       trace[traceLen++] = ((iLen >> 0) & 0xff);
-       trace[traceLen++] = ((iLen >> 8) & 0xff);
-
-       // readerToTag flag
-       if (!readerToTag) {
-               trace[traceLen - 1] |= 0x80;
-       }
-
-       // data bytes
-       if (btBytes != NULL && iLen != 0) {
-               memcpy(trace + traceLen, btBytes, iLen);
-       }
-       traceLen += iLen;
-
-       // parity bytes
-       if (parity != NULL && iLen != 0) {
-               memcpy(trace + traceLen, parity, num_paritybytes);
-       }
-       traceLen += num_paritybytes;
-
-       return TRUE;
-}
-

 //=============================================================================
 // ISO 14443 Type A - Miller decoder
 //=============================================================================
 //=============================================================================
 // ISO 14443 Type A - Miller decoder
 //=============================================================================


@@ -616,8 +549,8 @@ void RAMFUNC SnoopIso14443a(uint8_t param) {
        uint8_t *dmaBuf = BigBuf_malloc(DMA_BUFFER_SIZE);
 
        // init trace buffer
        uint8_t *dmaBuf = BigBuf_malloc(DMA_BUFFER_SIZE);
 
        // init trace buffer

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

 
        uint8_t *data = dmaBuf;
        uint8_t previous_data = 0;
 
        uint8_t *data = dmaBuf;
        uint8_t previous_data = 0;


@@ -741,7 +674,7 @@ void RAMFUNC SnoopIso14443a(uint8_t param) {
 
        FpgaDisableSscDma();
        Dbprintf("maxDataLen=%d, Uart.state=%x, Uart.len=%d", maxDataLen, Uart.state, Uart.len);
 
        FpgaDisableSscDma();
        Dbprintf("maxDataLen=%d, Uart.state=%x, Uart.len=%d", maxDataLen, Uart.state, Uart.len);

-       Dbprintf("traceLen=%d, Uart.output[0]=%08x", traceLen, (uint32_t)Uart.output[0]);
+       Dbprintf("traceLen=%d, Uart.output[0]=%08x", BigBuf_get_traceLen(), (uint32_t)Uart.output[0]);

        LEDsoff();
 }
 
        LEDsoff();
 }
 


@@ -1077,8 +1010,8 @@ void SimulateIso14443aTag(int tagType, int uid_1st, int uid_2nd, byte_t* data)
        free_buffer_pointer = BigBuf_malloc(ALLOCATED_TAG_MODULATION_BUFFER_SIZE);
 
        // clear trace
        free_buffer_pointer = BigBuf_malloc(ALLOCATED_TAG_MODULATION_BUFFER_SIZE);
 
        // clear trace

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

 
        // Prepare the responses of the anticollision phase
        // there will be not enough time to do this at the moment the reader sends it REQA
 
        // Prepare the responses of the anticollision phase
        // there will be not enough time to do this at the moment the reader sends it REQA


@@ -1936,10 +1869,10 @@ void ReaderIso14443a(UsbCommand *c)
        uint8_t par[MAX_PARITY_SIZE];
   
        if(param & ISO14A_CONNECT) {
        uint8_t par[MAX_PARITY_SIZE];
   
        if(param & ISO14A_CONNECT) {

-               iso14a_clear_trace();
+               clear_trace();

        }
 
        }
 

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

 
        if(param & ISO14A_REQUEST_TRIGGER) {
                iso14a_set_trigger(TRUE);
 
        if(param & ISO14A_REQUEST_TRIGGER) {
                iso14a_set_trigger(TRUE);


@@ -2035,8 +1968,8 @@ void ReaderMifare(bool first_try)
        // free eventually allocated BigBuf memory. We want all for tracing.
        BigBuf_free();
        
        // free eventually allocated BigBuf memory. We want all for tracing.
        BigBuf_free();
        

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

 
        byte_t nt_diff = 0;
        uint8_t par[1] = {0};   // maximum 8 Bytes to be sent here, 1 byte parity is therefore enough
 
        byte_t nt_diff = 0;
        uint8_t par[1] = {0};   // maximum 8 Bytes to be sent here, 1 byte parity is therefore enough


@@ -2209,7 +2142,7 @@ void ReaderMifare(bool first_try)
        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
        LEDsoff();
 
        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
        LEDsoff();
 

-       iso14a_set_tracing(FALSE);
+       set_tracing(FALSE);

 }
 
 /**
 }
 
 /**


@@ -2268,8 +2201,8 @@ void Mifare1ksim(uint8_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t *
        BigBuf_free_keep_EM();
 
        // clear trace
        BigBuf_free_keep_EM();
 
        // clear trace

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

 
        // Authenticate response - nonce
        uint32_t nonce = bytes_to_num(rAUTH_NT, 4);
 
        // Authenticate response - nonce
        uint32_t nonce = bytes_to_num(rAUTH_NT, 4);


@@ -2714,7 +2647,7 @@ void Mifare1ksim(uint8_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t *
                        }
                }
        }
                        }
                }
        }

-       if (MF_DBGLEVEL >= 1)   Dbprintf("Emulator stopped. Tracing: %d  trace length: %d ",    tracing, traceLen);
+       if (MF_DBGLEVEL >= 1)   Dbprintf("Emulator stopped. Tracing: %d  trace length: %d ",    tracing, BigBuf_get_traceLen());

        
 }
 
        
 }
 


@@ -2732,8 +2665,8 @@ void RAMFUNC SniffMifare(uint8_t param) {
        // C(red) A(yellow) B(green)
        LEDsoff();
        // init trace buffer
        // C(red) A(yellow) B(green)
        LEDsoff();
        // init trace buffer

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

 
        // The command (reader -> tag) that we're receiving.
        // The length of a received command will in most cases be no more than 18 bytes.
 
        // The command (reader -> tag) that we're receiving.
        // The length of a received command will in most cases be no more than 18 bytes.