Correct issue of blew circular buffer in hf 14b snoop with gcc 4.7.4 the issue is...

[proxmark3-svn] / armsrc / iso14443a.c

diff --git a/armsrc/iso14443a.c b/armsrc/iso14443a.c
index bd7e758d0b0796ac62883060a8923d876ed0b42c..33a946050041835cfef644cb73c3807cbd19ebcc 100644 (file)
--- a/armsrc/iso14443a.c
+++ b/armsrc/iso14443a.c
@@ -88,25 +88,25 @@ void iso14a_set_timeout(uint32_t timeout) {
 //-----------------------------------------------------------------------------
 byte_t oddparity (const byte_t bt)
 {
 //-----------------------------------------------------------------------------
 byte_t oddparity (const byte_t bt)
 {

-  return OddByteParity[bt];
+       return OddByteParity[bt];

 }
 
 uint32_t GetParity(const uint8_t * pbtCmd, int iLen)
 {
 }
 
 uint32_t GetParity(const uint8_t * pbtCmd, int iLen)
 {

-  int i;
-  uint32_t dwPar = 0;
+       int i;
+       uint32_t dwPar = 0;

 
 

-  // Generate the encrypted data
-  for (i = 0; i < iLen; i++) {
-    // Save the encrypted parity bit
-    dwPar |= ((OddByteParity[pbtCmd[i]]) << i);
-  }
-  return dwPar;
+       // Generate the encrypted data
+       for (i = 0; i < iLen; i++) {
+               // Save the encrypted parity bit
+               dwPar |= ((OddByteParity[pbtCmd[i]]) << i);
+       }
+       return dwPar;

 }
 
 void AppendCrc14443a(uint8_t* data, int len)
 {
 }
 
 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
 }
 
 // The function LogTrace() is also used by the iClass implementation in iClass.c


@@ -584,7 +584,7 @@ void RAMFUNC SnoopIso14443a(uint8_t param) {
        
        LEDsoff();
        // init trace buffer
        
        LEDsoff();
        // init trace buffer

-    iso14a_clear_trace();
+       iso14a_clear_trace();

 
        // We won't start recording the frames that we acquire until we trigger;
        // a good trigger condition to get started is probably when we see a
 
        // We won't start recording the frames that we acquire until we trigger;
        // a good trigger condition to get started is probably when we see a


@@ -782,7 +782,7 @@ static void CodeStrangeAnswerAsTag()
 {
        int i;
 
 {
        int i;
 

-    ToSendReset();
+       ToSendReset();

 
        // Correction bit, might be removed when not needed
        ToSendStuffBit(0);
 
        // Correction bit, might be removed when not needed
        ToSendStuffBit(0);


@@ -806,7 +806,7 @@ static void CodeStrangeAnswerAsTag()
        // 1
        ToSend[++ToSendMax] = SEC_D;
 
        // 1
        ToSend[++ToSendMax] = SEC_D;
 

-    // Send stopbit
+       // Send stopbit

        ToSend[++ToSendMax] = SEC_F;
 
        // Flush the buffer in FPGA!!
        ToSend[++ToSendMax] = SEC_F;
 
        // Flush the buffer in FPGA!!


@@ -814,15 +814,15 @@ static void CodeStrangeAnswerAsTag()
                ToSend[++ToSendMax] = SEC_F;
        }
 
                ToSend[++ToSendMax] = SEC_F;
        }
 

-    // Convert from last byte pos to length
-    ToSendMax++;
+       // Convert from last byte pos to length
+       ToSendMax++;

 }
 
 static void Code4bitAnswerAsTag(uint8_t cmd)
 {
        int i;
 
 }
 
 static void Code4bitAnswerAsTag(uint8_t cmd)
 {
        int i;
 

-    ToSendReset();
+       ToSendReset();

 
        // Correction bit, might be removed when not needed
        ToSendStuffBit(0);
 
        // Correction bit, might be removed when not needed
        ToSendStuffBit(0);


@@ -855,8 +855,8 @@ static void Code4bitAnswerAsTag(uint8_t cmd)
                ToSend[++ToSendMax] = SEC_F;
        }
 
                ToSend[++ToSendMax] = SEC_F;
        }
 

-    // Convert from last byte pos to length
-    ToSendMax++;
+       // Convert from last byte pos to length
+       ToSendMax++;

 }
 
 //-----------------------------------------------------------------------------
 }
 
 //-----------------------------------------------------------------------------


@@ -914,9 +914,9 @@ int EmSendCmdPar(uint8_t *resp, int respLen, uint32_t par);
 //-----------------------------------------------------------------------------
 void SimulateIso14443aTag(int tagType, int uid_1st, int uid_2nd, byte_t* data)
 {
 //-----------------------------------------------------------------------------
 void SimulateIso14443aTag(int tagType, int uid_1st, int uid_2nd, byte_t* data)
 {

-  // Enable and clear the trace
+       // Enable and clear the trace

        tracing = TRUE;
        tracing = TRUE;

-  iso14a_clear_trace();
+       iso14a_clear_trace();

 
        // This function contains the tag emulation
        uint8_t sak;
 
        // This function contains the tag emulation
        uint8_t sak;


@@ -996,7 +996,7 @@ void SimulateIso14443aTag(int tagType, int uid_1st, int uid_2nd, byte_t* data)
        uint8_t *resp = NULL;
        int respLen;
 
        uint8_t *resp = NULL;
        int respLen;
 

-  // Longest possible response will be 16 bytes + 2 CRC = 18 bytes
+       // Longest possible response will be 16 bytes + 2 CRC = 18 bytes

        // This will need
        //    144        data bits (18 * 8)
        //     18        parity bits
        // This will need
        //    144        data bits (18 * 8)
        //     18        parity bits


@@ -1109,9 +1109,9 @@ void SimulateIso14443aTag(int tagType, int uid_1st, int uid_2nd, byte_t* data)
                        break;
                }
     
                        break;
                }
     

-    if (tracing) {
+               if (tracing) {

                        LogTrace(receivedCmd,len, 0, Uart.parityBits, TRUE);
                        LogTrace(receivedCmd,len, 0, Uart.parityBits, TRUE);

-    }
+               }

     
                // doob - added loads of debug strings so we can see what the reader is saying to us during the sim as hi14alist is not populated
                // Okay, look at the command now.
     
                // doob - added loads of debug strings so we can see what the reader is saying to us during the sim as hi14alist is not populated
                // Okay, look at the command now.


@@ -1144,10 +1144,10 @@ void SimulateIso14443aTag(int tagType, int uid_1st, int uid_2nd, byte_t* data)
 //                     resp = resp4; respLen = resp4Len; order = 4; // Do nothing
 //                     respdata = &nack;
 //                     respsize = sizeof(nack); // 4-bit answer
 //                     resp = resp4; respLen = resp4Len; order = 4; // Do nothing
 //                     respdata = &nack;
 //                     respsize = sizeof(nack); // 4-bit answer

-      EmSendCmdEx(data+(4*receivedCmd[0]),16,false);
+                       EmSendCmdEx(data+(4*receivedCmd[0]),16,false);

                        Dbprintf("Read request from reader: %x %x",receivedCmd[0],receivedCmd[1]);
                        Dbprintf("Read request from reader: %x %x",receivedCmd[0],receivedCmd[1]);

-      // We already responded, do not send anything with the EmSendCmd14443aRaw() that is called below
-      respLen = 0;
+                       // We already responded, do not send anything with the EmSendCmd14443aRaw() that is called below
+                       respLen = 0;

                } else if(receivedCmd[0] == 0x50) {     // Received a HALT
 //                     DbpString("Reader requested we HALT!:");
                        // Do not respond
                } else if(receivedCmd[0] == 0x50) {     // Received a HALT
 //                     DbpString("Reader requested we HALT!:");
                        // Do not respond


@@ -1646,7 +1646,7 @@ int iso14443a_select_card(byte_t* uid_ptr, iso14a_card_select_t* p_hi14a_card, u
     p_hi14a_card->uidlen = 0;
     memset(p_hi14a_card->uid,0,10);
   }
     p_hi14a_card->uidlen = 0;
     memset(p_hi14a_card->uid,0,10);
   }

-       
+

   // clear uid
   if (uid_ptr) {
     memset(uid_ptr,0,10);
   // clear uid
   if (uid_ptr) {
     memset(uid_ptr,0,10);


@@ -1662,19 +1662,19 @@ int iso14443a_select_card(byte_t* uid_ptr, iso14a_card_select_t* p_hi14a_card, u
     // SELECT_ALL
     ReaderTransmit(sel_all,sizeof(sel_all), NULL);
     if (!ReaderReceive(resp)) return 0;
     // SELECT_ALL
     ReaderTransmit(sel_all,sizeof(sel_all), NULL);
     if (!ReaderReceive(resp)) return 0;

-    
+

     // First backup the current uid
     memcpy(uid_resp,resp,4);
     uid_resp_len = 4;
     //    Dbprintf("uid: %02x %02x %02x %02x",uid_resp[0],uid_resp[1],uid_resp[2],uid_resp[3]);
     // First backup the current uid
     memcpy(uid_resp,resp,4);
     uid_resp_len = 4;
     //    Dbprintf("uid: %02x %02x %02x %02x",uid_resp[0],uid_resp[1],uid_resp[2],uid_resp[3]);

-    
-       // calculate crypto UID. Always use last 4 Bytes.
-       if(cuid_ptr) {
-               *cuid_ptr = bytes_to_num(uid_resp, 4);
+
+        // calculate crypto UID. Always use last 4 Bytes.
+    if(cuid_ptr) {
+        *cuid_ptr = bytes_to_num(uid_resp, 4);

     }
 
     // Construct SELECT UID command
     }
 
     // Construct SELECT UID command

-               memcpy(sel_uid+2,resp,5);
+    memcpy(sel_uid+2,resp,5);

     AppendCrc14443a(sel_uid,7);
     ReaderTransmit(sel_uid,sizeof(sel_uid), NULL);
 
     AppendCrc14443a(sel_uid,7);
     ReaderTransmit(sel_uid,sizeof(sel_uid), NULL);
 


@@ -1689,11 +1689,11 @@ int iso14443a_select_card(byte_t* uid_ptr, iso14a_card_select_t* p_hi14a_card, u
       memcpy(uid_resp, uid_resp + 1, 3);
       uid_resp_len = 3;
     }
       memcpy(uid_resp, uid_resp + 1, 3);
       uid_resp_len = 3;
     }

-    
+

     if(uid_ptr) {
       memcpy(uid_ptr + (cascade_level*3), uid_resp, uid_resp_len);
     }
     if(uid_ptr) {
       memcpy(uid_ptr + (cascade_level*3), uid_resp, uid_resp_len);
     }

-    
+

     if(p_hi14a_card) {
       memcpy(p_hi14a_card->uid + (cascade_level*3), uid_resp, uid_resp_len);
       p_hi14a_card->uidlen += uid_resp_len;
     if(p_hi14a_card) {
       memcpy(p_hi14a_card->uid + (cascade_level*3), uid_resp, uid_resp_len);
       p_hi14a_card->uidlen += uid_resp_len;


@@ -1719,7 +1719,7 @@ int iso14443a_select_card(byte_t* uid_ptr, iso14a_card_select_t* p_hi14a_card, u
     memcpy(p_hi14a_card->ats, resp, sizeof(p_hi14a_card->ats));
     p_hi14a_card->ats_len = len;
   }
     memcpy(p_hi14a_card->ats, resp, sizeof(p_hi14a_card->ats));
     p_hi14a_card->ats_len = len;
   }

-       
+

   // reset the PCB block number
   iso14_pcb_blocknum = 0;
   return 1;
   // reset the PCB block number
   iso14_pcb_blocknum = 0;
   return 1;


@@ -1781,10 +1781,13 @@ void ReaderIso14443a(UsbCommand * c)
        iso14a_command_t param = c->arg[0];
        uint8_t * cmd = c->d.asBytes;
        size_t len = c->arg[1];
        iso14a_command_t param = c->arg[0];
        uint8_t * cmd = c->d.asBytes;
        size_t len = c->arg[1];

+       size_t lenbits = c->arg[2];

        uint32_t arg0 = 0;
        byte_t buf[USB_CMD_DATA_SIZE];
   
        uint32_t arg0 = 0;
        byte_t buf[USB_CMD_DATA_SIZE];
   

-       iso14a_clear_trace();
+       if(param & ISO14A_CONNECT) {
+               iso14a_clear_trace();
+       }

        iso14a_set_tracing(true);
 
        if(param & ISO14A_REQUEST_TRIGGER) {
        iso14a_set_tracing(true);
 
        if(param & ISO14A_REQUEST_TRIGGER) {


@@ -1793,8 +1796,11 @@ void ReaderIso14443a(UsbCommand * c)
 
        if(param & ISO14A_CONNECT) {
                iso14443a_setup();
 
        if(param & ISO14A_CONNECT) {
                iso14443a_setup();

-               arg0 = iso14443a_select_card(NULL, (iso14a_card_select_t*)buf, NULL);
-               cmd_send(CMD_ACK,arg0,0,0,buf,sizeof(iso14a_card_select_t));
+               if(!(param & ISO14A_NO_SELECT)) {
+                       iso14a_card_select_t *card = (iso14a_card_select_t*)buf;
+                       arg0 = iso14443a_select_card(NULL,card,NULL);
+                       cmd_send(CMD_ACK,arg0,card->uidlen,0,buf,sizeof(iso14a_card_select_t));
+               }

        }
 
        if(param & ISO14A_SET_TIMEOUT) {
        }
 
        if(param & ISO14A_SET_TIMEOUT) {


@@ -1815,7 +1821,11 @@ void ReaderIso14443a(UsbCommand * c)
                        AppendCrc14443a(cmd,len);
                        len += 2;
                }
                        AppendCrc14443a(cmd,len);
                        len += 2;
                }

-               ReaderTransmit(cmd,len, NULL);
+               if(lenbits>0) {
+                       ReaderTransmitBitsPar(cmd,lenbits,GetParity(cmd,lenbits/8), NULL);
+               } else {
+                       ReaderTransmit(cmd,len, NULL);
+               }

                arg0 = ReaderReceive(buf);
                cmd_send(CMD_ACK,arg0,0,0,buf,sizeof(buf));
        }
                arg0 = ReaderReceive(buf);
                cmd_send(CMD_ACK,arg0,0,0,buf,sizeof(buf));
        }