ADD: finished of the "LF GUARD SIM" command. needs testing.

diff --git a/client/cmdlf.c b/client/cmdlf.c
index 0f5d0dc0a4cede01838e5c80b82116af7e021441..09a97205eb8945a7d84ff3d0899755bb14d139d8 100644 (file)
--- a/client/cmdlf.c
+++ b/client/cmdlf.c
@@ -743,94 +743,94 @@ int CmdLFfskSim(const char *Cmd)
 // - allow pull data from DemodBuffer
 int CmdLFaskSim(const char *Cmd)
 {
-  //autodetect clock from Graphbuffer if using demod buffer
+       //autodetect clock from Graphbuffer if using demod buffer
        // needs clock, invert, manchester/raw as m or r, separator as s, and bitstream
-  uint8_t encoding = 1, separator = 0;
-  uint8_t clk=0, invert=0;
-  bool errors = FALSE;
-  char hexData[32] = {0x00}; 
-  uint8_t data[255]= {0x00}; // store entered hex data
-  int dataLen = 0;
-  uint8_t cmdp = 0;
-  while(param_getchar(Cmd, cmdp) != 0x00)
-  {
-    switch(param_getchar(Cmd, cmdp))
-    {
-    case 'h':
-      return usage_lf_simask();
-    case 'i':
-      invert = 1;
-      cmdp++;
-      break;
-    case 'c':
-      errors |= param_getdec(Cmd,cmdp+1,&clk);
-      cmdp+=2;
-      break;
-    case 'b':
-      encoding=2; //biphase
-      cmdp++;
-      break;
-    case 'm':
-      encoding=1;
-      cmdp++;
-      break;
-    case 'r':
-      encoding=0;
-      cmdp++;
-      break;
-    case 's':
-      separator=1;
-      cmdp++;
-      break;
-    case 'd':
-      dataLen = param_getstr(Cmd, cmdp+1, hexData);
-      if (dataLen==0) {
-        errors=TRUE; 
-      } else {
-        dataLen = hextobinarray((char *)data, hexData);
-      }
-      if (dataLen==0) errors=TRUE; 
-      if (errors) PrintAndLog ("Error getting hex data, datalen: %d",dataLen);
-        cmdp+=2;
-      break;
-    default:
-      PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
-      errors = TRUE;
-      break;
-    }
-    if(errors) break;
-  }
-  if(cmdp == 0 && DemodBufferLen == 0)
-  {
-    errors = TRUE;// No args
-  }
+       uint8_t encoding = 1, separator = 0, clk=0, invert=0;
+       bool errors = FALSE;
+       char hexData[32] = {0x00}; 
+       uint8_t data[255]= {0x00}; // store entered hex data
+       int dataLen = 0;
+       uint8_t cmdp = 0;
+       
+       while(param_getchar(Cmd, cmdp) != 0x00) {
+               switch(param_getchar(Cmd, cmdp)) {
+                       case 'h': return usage_lf_simask();
+                       case 'i':
+                               invert = 1;
+                               cmdp++;
+                               break;
+                       case 'c':
+                               errors |= param_getdec(Cmd,cmdp+1,&clk);
+                               cmdp+=2;
+                               break;
+                       case 'b':
+                               encoding=2; //biphase
+                               cmdp++;
+                               break;
+                       case 'm':
+                               encoding=1;
+                               cmdp++;
+                               break;
+                       case 'r':
+                               encoding=0;
+                               cmdp++;
+                               break;
+                       case 's':
+                               separator=1;
+                               cmdp++;
+                               break;
+                       case 'd':
+                               dataLen = param_getstr(Cmd, cmdp+1, hexData);
+                               if (dataLen==0)
+                                       errors = TRUE; 
+                               else
+                                       dataLen = hextobinarray((char *)data, hexData);
+                               
+                               if (dataLen==0) errors = TRUE; 
+                               if (errors) PrintAndLog ("Error getting hex data, datalen: %d", dataLen);
+                               cmdp+=2;
+                               break;
+                       default:
+                               PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
+                               errors = TRUE;
+                               break;
+               }
+               if(errors) break;
+       }
+  
+       if(cmdp == 0 && DemodBufferLen == 0)
+               errors = TRUE;// No args
 
-  //Validations
-  if(errors)
-  {
-    return usage_lf_simask();
-  }
-  if (dataLen == 0){ //using DemodBuffer
-    if (clk == 0) clk = GetAskClock("0", false, false);
-  } else {
-    setDemodBuf(data, dataLen, 0);
-  }
-  if (clk == 0) clk = 64;
-  if (encoding == 0) clk = clk/2; //askraw needs to double the clock speed
-  uint16_t arg1, arg2;
-  size_t size=DemodBufferLen;
-  arg1 = clk << 8 | encoding;
-  arg2 = invert << 8 | separator;
-  if (size > USB_CMD_DATA_SIZE) {
-    PrintAndLog("DemodBuffer too long for current implementation - length: %d - max: %d", size, USB_CMD_DATA_SIZE);
-    size = USB_CMD_DATA_SIZE;
-  }
-  UsbCommand c = {CMD_ASK_SIM_TAG, {arg1, arg2, size}};
-  PrintAndLog("preparing to sim ask data: %d bits", size);
-  memcpy(c.d.asBytes, DemodBuffer, size);
+       //Validations
+       if(errors) return usage_lf_simask();
+       
+       if (dataLen == 0){ //using DemodBuffer
+               if (clk == 0) 
+                       clk = GetAskClock("0", false, false);
+       } else {
+               setDemodBuf(data, dataLen, 0);
+       }
+       if (clk == 0) clk = 64;
+       if (encoding == 0) clk = clk/2; //askraw needs to double the clock speed
+       
+       size_t size = DemodBufferLen;
+
+       if (size > USB_CMD_DATA_SIZE) {
+               PrintAndLog("DemodBuffer too long for current implementation - length: %d - max: %d", size, USB_CMD_DATA_SIZE);
+               size = USB_CMD_DATA_SIZE;
+       }
+       
+       PrintAndLog("preparing to sim ask data: %d bits", size);        
+
+       uint16_t arg1, arg2;    
+       arg1 = clk << 8 | encoding;
+       arg2 = invert << 8 | separator;
+
+       UsbCommand c = {CMD_ASK_SIM_TAG, {arg1, arg2, size}};
+       memcpy(c.d.asBytes, DemodBuffer, size);
        clearCommandBuffer();
-  SendCommand(&c);
-  return 0;
+       SendCommand(&c);
+       return 0;
 }
 
 // by marshmellow - sim psk data given carrier, clock, invert 

diff --git a/client/cmdlfguard.c b/client/cmdlfguard.c
index 828bdb6827853f4b5a6c3a355d3ab7a318e3d859..05975eea66bc431fc013296a0b323651de699ac1 100644 (file)
--- a/client/cmdlfguard.c
+++ b/client/cmdlfguard.c
@@ -91,12 +91,6 @@ int GetGuardBits(uint32_t fc, uint32_t cn, uint8_t *guardBits) {
        
        if (g_debugMode) printf(" WIE | %s\n", sprint_hex(rawbytes, sizeof(rawbytes))); 
        
-       // NIBBLE_SWAP (works on all data)
-       // for (i = 0; i < 12; ++i)
-               // rawbytes[i] = SWAP_NIBBLE( rawbytes[i] );
-
-       // printf("SWAP | %s\n", sprint_hex(rawbytes, sizeof(rawbytes)));
-       
        // XOR (only works on wiegand stuff)
        for (i = 1; i < 12; ++i)
                rawbytes[i] ^= xorKey ;
@@ -111,7 +105,7 @@ int GetGuardBits(uint32_t fc, uint32_t cn, uint8_t *guardBits) {
        if (g_debugMode) printf(" Raw | %s\n", sprint_bin(pre, 64) );
        
        // add spacer bit 0 every 4 bits, starting with index 0,
-       // 12 bytes, 24 nibbles.  24+1 extra bites. 3bytes.  Ie 9bytes | 1byte xorkey, 8bytes rawdata (64bits, should be enough for a 40bit wiegand)
+       // 12 bytes, 24 nibbles.  24+1 extra bites. 3bytes.  ie 9bytes | 1byte xorkey, 8bytes rawdata (64bits, should be enough for a 40bit wiegand)
        addParity(pre, guardBits+6, 64, 5, 3);
 
        // preamble
@@ -121,10 +115,6 @@ int GetGuardBits(uint32_t fc, uint32_t cn, uint8_t *guardBits) {
        guardBits[3] = 1;
        guardBits[4] = 1;
        guardBits[5] = 0;
-/*               6      B      
-PRE |          0110   1101   0101   1110   0001   1101   1101   0111   1101011011010110110101101101011
-FIN | 111110 0 0110 0 1101 0 0101 0 1110 0 0001 0 1101 0 1101 0 0111 0 110100110011010011001101001100110100110000000000
-*/
        
        if (g_debugMode) printf(" FIN | %s\n", sprint_bin(guardBits, 96) );
        return 1;
@@ -194,16 +184,11 @@ int CmdGuardSim(const char *Cmd) {
        if (strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_guard_sim();
 
        uint32_t facilitycode = 0, cardnumber = 0, fc = 0, cn = 0;
+       uint8_t clock = 64, encoding = 2, separator = 0, invert = 0;
        
        uint8_t bs[96];
-       size_t size = sizeof(bs);
-       memset(bs, 0x00, size);
+       memset(bs, 0x00, sizeof(bs));
        
-       // Pyramid uses:  ASK Biphase, clk: 32, invert: 0
-       uint64_t arg1, arg2;
-       arg1 = (10 << 8) + 8;
-       arg2 = 32 | 0;
-
        if (sscanf(Cmd, "%u %u", &fc, &cn ) != 2) return usage_lf_guard_sim();
 
        facilitycode = (fc & 0x000000FF);
@@ -215,9 +200,20 @@ int CmdGuardSim(const char *Cmd) {
        }       
 
        PrintAndLog("Simulating Guardall - Facility Code: %u, CardNumber: %u", facilitycode, cardnumber );
-       
+
+       // Guard uses:  clk: 64, invert: 0, encoding: 2 (ASK Biphase)
+       uint64_t arg1, arg2;
+       arg1 = (clock << 8) | encoding;
+       arg2 = (invert << 8) | separator;
+
+       uint8_t rawbytes[12];
+       size_t size = sizeof(rawbytes);
+       for (uint8_t i=0; i < size; ++i){
+               rawbytes[i] =  bytebits_to_byte( bs + (i*8), 8);
+       }
+
        UsbCommand c = {CMD_ASK_SIM_TAG, {arg1, arg2, size}};
-       memcpy(c.d.asBytes, bs, size);
+       memcpy(c.d.asBytes, rawbytes, size );
        clearCommandBuffer();
        SendCommand(&c);
        return 0;
@@ -227,7 +223,7 @@ static command_t CommandTable[] = {
     {"help",   CmdHelp,                1, "This help"},
        {"read",        CmdGuardRead,  0, "Attempt to read and extract tag data"},
        {"clone",       CmdGuardClone, 0, "<Facility-Code> <Card Number>  clone Guardall tag"},
-//     {"sim",         CmdGuardSim,   0, "<Facility-Code> <Card Number>  simulate Guardall tag"},
+       {"sim",         CmdGuardSim,   0, "<Facility-Code> <Card Number>  simulate Guardall tag"},
     {NULL, NULL, 0, NULL}
 };