Merge pull request #12 from k02a/patch-1

[proxmark3-svn] / client / cmddata.c

diff --git a/client/cmddata.c b/client/cmddata.c
index e3226a777c0a9117709ce29d88fd782c93cbd61d..6570b24370d2796ef71f63ff05791adc81a8c371 100644 (file)
--- a/client/cmddata.c
+++ b/client/cmddata.c
@@ -8,23 +8,22 @@
 // Data and Graph commands
 //-----------------------------------------------------------------------------
 
 // Data and Graph commands
 //-----------------------------------------------------------------------------
 

-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <limits.h>
-#include "proxmark3.h"
-#include "data.h"
-#include "ui.h"
-#include "graph.h"
-#include "cmdparser.h"
+#include <stdio.h>    // also included in util.h
+#include <string.h>   // also included in util.h
+#include <limits.h>   // for CmdNorm INT_MIN && INT_MAX
+#include "data.h"     // also included in util.h
+#include "cmddata.h"

 #include "util.h"
 #include "cmdmain.h"
 #include "util.h"
 #include "cmdmain.h"

-#include "cmddata.h"
-#include "lfdemod.h"
-#include "usb_cmd.h"
-#include "crc.h"
-#include "crc16.h"
-#include "loclass/cipherutils.h"
+#include "proxmark3.h"
+#include "ui.h"       // for show graph controls
+#include "graph.h"    // for graph data
+#include "cmdparser.h"// already included in cmdmain.h
+#include "usb_cmd.h"  // already included in cmdmain.h and proxmark3.h
+#include "lfdemod.h"  // for demod code
+#include "crc.h"      // for pyramid checksum maxim
+#include "crc16.h"    // for FDXB demod checksum
+#include "loclass/cipherutils.h" // for decimating samples in getsamples

 
 uint8_t DemodBuffer[MAX_DEMOD_BUF_LEN];
 uint8_t g_debugMode=0;
 
 uint8_t DemodBuffer[MAX_DEMOD_BUF_LEN];
 uint8_t g_debugMode=0;


@@ -77,7 +76,7 @@ void printDemodBuff(void)
        }
        if (bitLen>512) bitLen=512; //max output to 512 bits if we have more - should be plenty
 
        }
        if (bitLen>512) bitLen=512; //max output to 512 bits if we have more - should be plenty
 

-       char *bin = sprint_bin_break(DemodBuffer,bitLen,16);
+       char *bin = sprint_bin_break(DemodBuffer, bitLen,16);

        PrintAndLog("%s",bin);
 
        return;
        PrintAndLog("%s",bin);
 
        return;


@@ -277,7 +276,8 @@ int AskEm410xDecode(bool verbose, uint32_t *hi, uint64_t *lo )
 
 int AskEm410xDemod(const char *Cmd, uint32_t *hi, uint64_t *lo, bool verbose)
 {
 
 int AskEm410xDemod(const char *Cmd, uint32_t *hi, uint64_t *lo, bool verbose)
 {

-       if (!ASKDemod(Cmd, FALSE, FALSE, 1)) return 0;
+       bool st = TRUE;
+       if (!ASKDemod_ext(Cmd, FALSE, FALSE, 1, &st)) return 0;

        return AskEm410xDecode(verbose, hi, lo);
 }
 
        return AskEm410xDecode(verbose, hi, lo);
 }
 


@@ -312,8 +312,7 @@ int CmdAskEM410xDemod(const char *Cmd)
 //verbose will print results and demoding messages
 //emSearch will auto search for EM410x format in bitstream
 //askType switches decode: ask/raw = 0, ask/manchester = 1 
 //verbose will print results and demoding messages
 //emSearch will auto search for EM410x format in bitstream
 //askType switches decode: ask/raw = 0, ask/manchester = 1 

-int ASKDemod(const char *Cmd, bool verbose, bool emSearch, uint8_t askType)
-{
+int ASKDemod_ext(const char *Cmd, bool verbose, bool emSearch, uint8_t askType, bool *stCheck) {

        int invert=0;
        int clk=0;
        int maxErr=100;
        int invert=0;
        int clk=0;
        int maxErr=100;


@@ -336,7 +335,14 @@ int ASKDemod(const char *Cmd, bool verbose, bool emSearch, uint8_t askType)
        if (g_debugMode) PrintAndLog("DEBUG: Bitlen from grphbuff: %d",BitLen);
        if (BitLen<255) return 0;
        if (maxLen<BitLen && maxLen != 0) BitLen = maxLen;
        if (g_debugMode) PrintAndLog("DEBUG: Bitlen from grphbuff: %d",BitLen);
        if (BitLen<255) return 0;
        if (maxLen<BitLen && maxLen != 0) BitLen = maxLen;

-
+       int foundclk = 0;
+       bool st = false;
+       if (*stCheck) st = DetectST(BitStream, &BitLen, &foundclk);
+       if (st) {
+               *stCheck = st;
+               clk = (clk == 0) ? foundclk : clk;
+               if (verbose || g_debugMode) PrintAndLog("\nFound Sequence Terminator");
+       }

        int errCnt = askdemod(BitStream, &BitLen, &clk, &invert, maxErr, askAmp, askType);
        if (errCnt<0 || BitLen<16){  //if fatal error (or -1)
                if (g_debugMode) PrintAndLog("DEBUG: no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt,invert,BitLen,clk);
        int errCnt = askdemod(BitStream, &BitLen, &clk, &invert, maxErr, askAmp, askType);
        if (errCnt<0 || BitLen<16){  //if fatal error (or -1)
                if (g_debugMode) PrintAndLog("DEBUG: no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt,invert,BitLen,clk);


@@ -365,6 +371,10 @@ int ASKDemod(const char *Cmd, bool verbose, bool emSearch, uint8_t askType)
        }
        return 1;
 }
        }
        return 1;
 }

+int ASKDemod(const char *Cmd, bool verbose, bool emSearch, uint8_t askType) {
+       bool st = false;
+       return ASKDemod_ext(Cmd, verbose, emSearch, askType, &st);
+}

 
 //by marshmellow
 //takes 5 arguments - clock, invert, maxErr, maxLen as integers and amplify as char == 'a'
 
 //by marshmellow
 //takes 5 arguments - clock, invert, maxErr, maxLen as integers and amplify as char == 'a'


@@ -374,7 +384,8 @@ int Cmdaskmandemod(const char *Cmd)
 {
        char cmdp = param_getchar(Cmd, 0);
        if (strlen(Cmd) > 25 || cmdp == 'h' || cmdp == 'H') {
 {
        char cmdp = param_getchar(Cmd, 0);
        if (strlen(Cmd) > 25 || cmdp == 'h' || cmdp == 'H') {

-               PrintAndLog("Usage:  data rawdemod am [clock] <invert> [maxError] [maxLen] [amplify]");
+               PrintAndLog("Usage:  data rawdemod am <s> [clock] <invert> [maxError] [maxLen] [amplify]");
+               PrintAndLog("     ['s'] optional, check for Sequence Terminator");

                PrintAndLog("     [set clock as integer] optional, if not set, autodetect");
                PrintAndLog("     <invert>, 1 to invert output");
                PrintAndLog("     [set maximum allowed errors], default = 100");
                PrintAndLog("     [set clock as integer] optional, if not set, autodetect");
                PrintAndLog("     <invert>, 1 to invert output");
                PrintAndLog("     [set maximum allowed errors], default = 100");


@@ -388,6 +399,12 @@ int Cmdaskmandemod(const char *Cmd)
                PrintAndLog("          : data rawdemod am 64 1 0 = demod an ask/manchester tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
                return 0;
        }
                PrintAndLog("          : data rawdemod am 64 1 0 = demod an ask/manchester tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
                return 0;
        }

+       bool st = TRUE;
+       if (Cmd[0]=='s') 
+               return ASKDemod_ext(Cmd++, TRUE, TRUE, 1, &st);
+       else if (Cmd[1] == 's')
+               return ASKDemod_ext(Cmd+=2, TRUE, TRUE, 1, &st);
+       else

        return ASKDemod(Cmd, TRUE, TRUE, 1);
 }
 
        return ASKDemod(Cmd, TRUE, TRUE, 1);
 }
 


@@ -574,7 +591,7 @@ int Cmdaskbiphdemod(const char *Cmd)
 int CmdG_Prox_II_Demod(const char *Cmd)
 {
        if (!ASKbiphaseDemod(Cmd, FALSE)){
 int CmdG_Prox_II_Demod(const char *Cmd)
 {
        if (!ASKbiphaseDemod(Cmd, FALSE)){

-               if (g_debugMode) PrintAndLog("ASKbiphaseDemod failed 1st try");
+               if (g_debugMode) PrintAndLog("Error gProxII: ASKbiphaseDemod failed 1st try");

                return 0;
        }
        size_t size = DemodBufferLen;
                return 0;
        }
        size_t size = DemodBufferLen;


@@ -584,46 +601,32 @@ int CmdG_Prox_II_Demod(const char *Cmd)
                if (g_debugMode) PrintAndLog("Error gProxII_Demod");
                return 0;
        }
                if (g_debugMode) PrintAndLog("Error gProxII_Demod");
                return 0;
        }

-       //got a good demod
-       uint32_t ByteStream[65] = {0x00};
+       //got a good demod of 96 bits
+       uint8_t ByteStream[8] = {0x00};

        uint8_t xorKey=0;
        uint8_t xorKey=0;

-       uint8_t keyCnt=0;
-       uint8_t bitCnt=0;
-       uint8_t ByteCnt=0;
-       size_t startIdx = ans + 6; //start after preamble
-       for (size_t idx = 0; idx<size-6; idx++){
-               if ((idx+1) % 5 == 0){
-                       //spacer bit - should be 0
-                       if (DemodBuffer[startIdx+idx] != 0) {
-                               if (g_debugMode) PrintAndLog("Error spacer not 0: %d, pos: %d",DemodBuffer[startIdx+idx],startIdx+idx);
+       size_t startIdx = ans + 6; //start after 6 bit preamble
+
+       uint8_t bits_no_spacer[90];
+       //so as to not mess with raw DemodBuffer copy to a new sample array
+       memcpy(bits_no_spacer, DemodBuffer + startIdx, 90);
+       // remove the 18 (90/5=18) parity bits (down to 72 bits (96-6-18=72))
+       size_t bitLen = removeParity(bits_no_spacer, 0, 5, 3, 90); //source, startloc, paritylen, ptype, length_to_run
+       if (bitLen != 72) {
+               if (g_debugMode) PrintAndLog("Error gProxII: spacer removal did not produce 72 bits: %u, start: %u", bitLen, startIdx);

                                return 0;
                        }
                                return 0;
                        }

-                       continue;
-               } 
-               if (keyCnt<8){ //lsb first
-                       xorKey = xorKey | (DemodBuffer[startIdx+idx]<<keyCnt);
-                       keyCnt++;
-                       if (keyCnt==8 && g_debugMode) PrintAndLog("xorKey Found: %02x", xorKey);
-                       continue;
-               }
-               //lsb first
-               ByteStream[ByteCnt] = ByteStream[ByteCnt] | (DemodBuffer[startIdx+idx]<<bitCnt);
-               bitCnt++;
-               if (bitCnt % 8 == 0){
-                       if (g_debugMode) PrintAndLog("byte %d: %02x",ByteCnt,ByteStream[ByteCnt]);
-                       bitCnt=0;
-                       ByteCnt++;
-               }
-       }
-       for (uint8_t i = 0; i < ByteCnt; i++){
-               ByteStream[i] ^= xorKey; //xor
-               if (g_debugMode) PrintAndLog("byte %d after xor: %02x", i, ByteStream[i]);
+       // get key and then get all 8 bytes of payload decoded
+       xorKey = (uint8_t)bytebits_to_byteLSBF(bits_no_spacer, 8);
+       for (size_t idx = 0; idx < 8; idx++) {
+               ByteStream[idx] = ((uint8_t)bytebits_to_byteLSBF(bits_no_spacer+8 + (idx*8),8)) ^ xorKey;
+               if (g_debugMode) PrintAndLog("byte %u after xor: %02x", (unsigned int)idx, ByteStream[idx]);

        }
        }

-       //now ByteStream contains 64 bytes of decrypted raw tag data
+       //now ByteStream contains 8 Bytes (64 bits) of decrypted raw tag data

        // 
        uint8_t fmtLen = ByteStream[0]>>2;
        uint32_t FC = 0;
        uint32_t Card = 0;
        // 
        uint8_t fmtLen = ByteStream[0]>>2;
        uint32_t FC = 0;
        uint32_t Card = 0;

+       //get raw 96 bits to print

        uint32_t raw1 = bytebits_to_byte(DemodBuffer+ans,32);
        uint32_t raw2 = bytebits_to_byte(DemodBuffer+ans+32, 32);
        uint32_t raw3 = bytebits_to_byte(DemodBuffer+ans+64, 32);
        uint32_t raw1 = bytebits_to_byte(DemodBuffer+ans,32);
        uint32_t raw2 = bytebits_to_byte(DemodBuffer+ans+32, 32);
        uint32_t raw3 = bytebits_to_byte(DemodBuffer+ans+64, 32);


@@ -631,13 +634,14 @@ int CmdG_Prox_II_Demod(const char *Cmd)
        if (fmtLen==36){
                FC = ((ByteStream[3] & 0x7F)<<7) | (ByteStream[4]>>1);
                Card = ((ByteStream[4]&1)<<19) | (ByteStream[5]<<11) | (ByteStream[6]<<3) | (ByteStream[7]>>5);
        if (fmtLen==36){
                FC = ((ByteStream[3] & 0x7F)<<7) | (ByteStream[4]>>1);
                Card = ((ByteStream[4]&1)<<19) | (ByteStream[5]<<11) | (ByteStream[6]<<3) | (ByteStream[7]>>5);

-               PrintAndLog("G-Prox-II Found: FmtLen %d, FC %d, Card %d",fmtLen,FC,Card);
+               PrintAndLog("G-Prox-II Found: FmtLen %d, FC %u, Card %u", (int)fmtLen, FC, Card);

        } else if(fmtLen==26){
                FC = ((ByteStream[3] & 0x7F)<<1) | (ByteStream[4]>>7);
                Card = ((ByteStream[4]&0x7F)<<9) | (ByteStream[5]<<1) | (ByteStream[6]>>7);
        } else if(fmtLen==26){
                FC = ((ByteStream[3] & 0x7F)<<1) | (ByteStream[4]>>7);
                Card = ((ByteStream[4]&0x7F)<<9) | (ByteStream[5]<<1) | (ByteStream[6]>>7);

-               PrintAndLog("G-Prox-II Found: FmtLen %d, FC %d, Card %d",fmtLen,FC,Card);    
+               PrintAndLog("G-Prox-II Found: FmtLen %d, FC %u, Card %u", (int)fmtLen, FC, Card);

        } else {
        } else {

-               PrintAndLog("Unknown G-Prox-II Fmt Found: FmtLen %d",fmtLen);
+               PrintAndLog("Unknown G-Prox-II Fmt Found: FmtLen %d",(int)fmtLen);
+               PrintAndLog("Decoded Raw: %s", sprint_hex(ByteStream, 8)); 

        }
        PrintAndLog("Raw: %08x%08x%08x", raw1,raw2,raw3);
        setDemodBuf(DemodBuffer+ans, 96, 0);
        }
        PrintAndLog("Raw: %08x%08x%08x", raw1,raw2,raw3);
        setDemodBuf(DemodBuffer+ans, 96, 0);


@@ -656,7 +660,7 @@ int CmdVikingDemod(const char *Cmd)
        //call lfdemod.c demod for Viking
        int ans = VikingDemod_AM(DemodBuffer, &size);
        if (ans < 0) {
        //call lfdemod.c demod for Viking
        int ans = VikingDemod_AM(DemodBuffer, &size);
        if (ans < 0) {

-               if (g_debugMode) PrintAndLog("Error Viking_Demod %d", ans);
+               if (g_debugMode) PrintAndLog("Error Viking_Demod %d %s", ans, (ans == -5)?"[chksum error]":"");

                return 0;
        }
        //got a good demod
                return 0;
        }
        //got a good demod


@@ -752,8 +756,7 @@ int usage_data_autocorr(void)
 int CmdAutoCorr(const char *Cmd)
 {
        char cmdp = param_getchar(Cmd, 0);
 int CmdAutoCorr(const char *Cmd)
 {
        char cmdp = param_getchar(Cmd, 0);

-       if (cmdp == 'h' || cmdp == 'H') 
-               return usage_data_autocorr();
+       if (cmdp == 'h' || cmdp == 'H') return usage_data_autocorr();

        int window = 4000; //set default
        char grph=0;
        bool updateGrph = FALSE;
        int window = 4000; //set default
        char grph=0;
        bool updateGrph = FALSE;


@@ -874,13 +877,16 @@ int CmdGraphShiftZero(const char *Cmd)
 int CmdAskEdgeDetect(const char *Cmd)
 {
        int thresLen = 25;
 int CmdAskEdgeDetect(const char *Cmd)
 {
        int thresLen = 25;

+       int last = 0;

        sscanf(Cmd, "%i", &thresLen); 
 
        sscanf(Cmd, "%i", &thresLen); 
 

-       for(int i = 1; i<GraphTraceLen; i++){
-               if (GraphBuffer[i]-GraphBuffer[i-1]>=thresLen) //large jump up
-                       GraphBuffer[i-1] = 127;
-               else if(GraphBuffer[i]-GraphBuffer[i-1]<=-1*thresLen) //large jump down
-                       GraphBuffer[i-1] = -127;
+       for(int i = 1; i < GraphTraceLen; ++i){
+               if (GraphBuffer[i] - GraphBuffer[i-1] >= thresLen) //large jump up
+                       last = 127;
+               else if(GraphBuffer[i] - GraphBuffer[i-1] <= -1 * thresLen) //large jump down
+                       last = -127;
+                       
+               GraphBuffer[i-1] = last;

        }
        RepaintGraphWindow();
        return 0;
        }
        RepaintGraphWindow();
        return 0;


@@ -964,7 +970,6 @@ int FSKrawDemod(const char *Cmd, bool verbose)
        uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
        size_t BitLen = getFromGraphBuf(BitStream);
        if (BitLen==0) return 0;
        uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
        size_t BitLen = getFromGraphBuf(BitStream);
        if (BitLen==0) return 0;

-       if (g_debugMode==2) PrintAndLog("DEBUG: Got samples");  

        //get field clock lengths
        uint16_t fcs=0;
        if (!fchigh || !fclow) {
        //get field clock lengths
        uint16_t fcs=0;
        if (!fchigh || !fclow) {


@@ -1261,7 +1266,7 @@ int CmdFSKdemodAWID(const char *Cmd)
        //get binary from fsk wave
        int idx = AWIDdemodFSK(BitStream, &size);
        if (idx<=0){
        //get binary from fsk wave
        int idx = AWIDdemodFSK(BitStream, &size);
        if (idx<=0){

-               if (g_debugMode==1){
+               if (g_debugMode){

                        if (idx == -1)
                                PrintAndLog("DEBUG: Error - not enough samples");
                        else if (idx == -2)
                        if (idx == -1)
                                PrintAndLog("DEBUG: Error - not enough samples");
                        else if (idx == -2)


@@ -1299,7 +1304,7 @@ int CmdFSKdemodAWID(const char *Cmd)
 
        size = removeParity(BitStream, idx+8, 4, 1, 88);
        if (size != 66){
 
        size = removeParity(BitStream, idx+8, 4, 1, 88);
        if (size != 66){

-               if (g_debugMode==1) PrintAndLog("DEBUG: Error - at parity check-tag size does not match AWID format");
+               if (g_debugMode) PrintAndLog("DEBUG: Error - at parity check-tag size does not match AWID format");

                return 0;
        }
        // ok valid card found!
                return 0;
        }
        // ok valid card found!


@@ -1312,37 +1317,51 @@ int CmdFSKdemodAWID(const char *Cmd)
        // 00011010 1 01110101 0000000010001110 1 000000000000000000000000000000000
        // bbbbbbbb w ffffffff cccccccccccccccc w xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
        // |26 bit|   |-117--| |-----142------|
        // 00011010 1 01110101 0000000010001110 1 000000000000000000000000000000000
        // bbbbbbbb w ffffffff cccccccccccccccc w xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
        // |26 bit|   |-117--| |-----142------|

+    //
+       // 00110010 0 0000111110100000 00000000000100010010100010000111 1 000000000 
+       // bbbbbbbb w ffffffffffffffff cccccccccccccccccccccccccccccccc w xxxxxxxxx
+       // |50 bit|   |----4000------| |-----------2248975------------| 

        // b = format bit len, o = odd parity of last 3 bits
        // f = facility code, c = card number
        // w = wiegand parity
        // b = format bit len, o = odd parity of last 3 bits
        // f = facility code, c = card number
        // w = wiegand parity

-       // (26 bit format shown)

 
        uint32_t fc = 0;
        uint32_t cardnum = 0;
        uint32_t code1 = 0;
        uint32_t code2 = 0;
 
        uint32_t fc = 0;
        uint32_t cardnum = 0;
        uint32_t code1 = 0;
        uint32_t code2 = 0;

-       uint8_t fmtLen = bytebits_to_byte(BitStream,8);
-       if (fmtLen==26){
-               fc = bytebits_to_byte(BitStream+9, 8);
-               cardnum = bytebits_to_byte(BitStream+17, 16);
-               code1 = bytebits_to_byte(BitStream+8,fmtLen);
-               PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, rawHi2, rawHi, rawLo);
-       } else {
-               cardnum = bytebits_to_byte(BitStream+8+(fmtLen-17), 16);
-               if (fmtLen>32){
-                       code1 = bytebits_to_byte(BitStream+8,fmtLen-32);
-                       code2 = bytebits_to_byte(BitStream+8+(fmtLen-32),32);
-                       PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, code2, rawHi2, rawHi, rawLo);
-               } else{
-                       code1 = bytebits_to_byte(BitStream+8,fmtLen);
-                       PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, rawHi2, rawHi, rawLo);
-               }
+       uint8_t fmtLen = bytebits_to_byte(BitStream, 8);
+       switch(fmtLen) {
+               case 26: 
+                       fc = bytebits_to_byte(BitStream + 9, 8);
+                       cardnum = bytebits_to_byte(BitStream + 17, 16);
+                       code1 = bytebits_to_byte(BitStream + 8,fmtLen);
+                       PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %u - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, rawHi2, rawHi, rawLo);
+                       break;
+               case 50:
+                       fc = bytebits_to_byte(BitStream + 9, 16);
+                       cardnum = bytebits_to_byte(BitStream + 25, 32);
+                       code1 = bytebits_to_byte(BitStream + 8, (fmtLen-32) );
+                       code2 = bytebits_to_byte(BitStream + 8 + (fmtLen-32), 32);
+                       PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %u - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, code2, rawHi2, rawHi, rawLo);
+                       break;
+               default:
+                       if (fmtLen > 32 ) {
+                               cardnum = bytebits_to_byte(BitStream+8+(fmtLen-17), 16);
+                               code1 = bytebits_to_byte(BitStream+8,fmtLen-32);
+                               code2 = bytebits_to_byte(BitStream+8+(fmtLen-32),32);
+                               PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%u) - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, code2, rawHi2, rawHi, rawLo);
+                       } else {
+                               cardnum = bytebits_to_byte(BitStream+8+(fmtLen-17), 16);
+                               code1 = bytebits_to_byte(BitStream+8,fmtLen);
+                               PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%u) - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, rawHi2, rawHi, rawLo);
+                       }
+                       break;          

        }
        }

+

        if (g_debugMode){
                PrintAndLog("DEBUG: idx: %d, Len: %d Printing Demod Buffer:", idx, 96);
                printDemodBuff();
        }
        if (g_debugMode){
                PrintAndLog("DEBUG: idx: %d, Len: %d Printing Demod Buffer:", idx, 96);
                printDemodBuff();
        }

-       //todo - convert hi2, hi, lo to demodbuffer for future sim/clone commands

        return 1;
 }
 
        return 1;
 }
 


@@ -1359,7 +1378,7 @@ int CmdFSKdemodPyramid(const char *Cmd)
        //get binary from fsk wave
        int idx = PyramiddemodFSK(BitStream, &size);
        if (idx < 0){
        //get binary from fsk wave
        int idx = PyramiddemodFSK(BitStream, &size);
        if (idx < 0){

-               if (g_debugMode==1){
+               if (g_debugMode){

                        if (idx == -5)
                                PrintAndLog("DEBUG: Error - not enough samples");
                        else if (idx == -1)
                        if (idx == -5)
                                PrintAndLog("DEBUG: Error - not enough samples");
                        else if (idx == -1)


@@ -1393,7 +1412,7 @@ int CmdFSKdemodPyramid(const char *Cmd)
        // s = format start bit, o = odd parity of last 7 bits
        // f = facility code, c = card number
        // w = wiegand parity, x = extra space for other formats
        // s = format start bit, o = odd parity of last 7 bits
        // f = facility code, c = card number
        // w = wiegand parity, x = extra space for other formats

-       // p = unknown checksum
+       // p = CRC8maxim checksum

        // (26 bit format shown)
 
        //get bytes for checksum calc
        // (26 bit format shown)
 
        //get bytes for checksum calc


@@ -1415,7 +1434,7 @@ int CmdFSKdemodPyramid(const char *Cmd)
 
        size = removeParity(BitStream, idx+8, 8, 1, 120);
        if (size != 105){
 
        size = removeParity(BitStream, idx+8, 8, 1, 120);
        if (size != 105){

-               if (g_debugMode==1) 
+               if (g_debugMode) 

                        PrintAndLog("DEBUG: Error at parity check - tag size does not match Pyramid format, SIZE: %d, IDX: %d, hi3: %x",size, idx, rawHi3);
                return 0;
        }
                        PrintAndLog("DEBUG: Error at parity check - tag size does not match Pyramid format, SIZE: %d, IDX: %d, hi3: %x",size, idx, rawHi3);
                return 0;
        }


@@ -1440,38 +1459,33 @@ int CmdFSKdemodPyramid(const char *Cmd)
        // s = format start bit, o = odd parity of last 7 bits
        // f = facility code, c = card number
        // w = wiegand parity, x = extra space for other formats
        // s = format start bit, o = odd parity of last 7 bits
        // f = facility code, c = card number
        // w = wiegand parity, x = extra space for other formats

-       // p = unknown checksum
+       // p = CRC8-Maxim checksum

        // (26 bit format shown)
 
        //find start bit to get fmtLen
        int j;
        // (26 bit format shown)
 
        //find start bit to get fmtLen
        int j;

-       for (j=0; j<size; j++){
+       for (j=0; j < size; ++j){

                if(BitStream[j]) break;
        }
                if(BitStream[j]) break;
        }

+       

        uint8_t fmtLen = size-j-8;
        uint32_t fc = 0;
        uint32_t cardnum = 0;
        uint32_t code1 = 0;
        uint8_t fmtLen = size-j-8;
        uint32_t fc = 0;
        uint32_t cardnum = 0;
        uint32_t code1 = 0;

-       if (fmtLen==26){
+       
+       if ( fmtLen == 26 ){

                fc = bytebits_to_byte(BitStream+73, 8);
                cardnum = bytebits_to_byte(BitStream+81, 16);
                code1 = bytebits_to_byte(BitStream+72,fmtLen);
                PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %08x%08x%08x%08x", fmtLen, fc, cardnum, code1, rawHi3, rawHi2, rawHi, rawLo);
                fc = bytebits_to_byte(BitStream+73, 8);
                cardnum = bytebits_to_byte(BitStream+81, 16);
                code1 = bytebits_to_byte(BitStream+72,fmtLen);
                PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %08x%08x%08x%08x", fmtLen, fc, cardnum, code1, rawHi3, rawHi2, rawHi, rawLo);

-       } else if (fmtLen==45){
-               fmtLen=42; //end = 10 bits not 7 like 26 bit fmt
+       } else if (fmtLen == 45) {
+               fmtLen = 42; //end = 10 bits not 7 like 26 bit fmt

                fc = bytebits_to_byte(BitStream+53, 10);
                cardnum = bytebits_to_byte(BitStream+63, 32);
                PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Raw: %08x%08x%08x%08x", fmtLen, fc, cardnum, rawHi3, rawHi2, rawHi, rawLo);
        } else {
                cardnum = bytebits_to_byte(BitStream+81, 16);
                fc = bytebits_to_byte(BitStream+53, 10);
                cardnum = bytebits_to_byte(BitStream+63, 32);
                PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Raw: %08x%08x%08x%08x", fmtLen, fc, cardnum, rawHi3, rawHi2, rawHi, rawLo);
        } else {
                cardnum = bytebits_to_byte(BitStream+81, 16);

-               if (fmtLen>32){
-                       //code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen-32);
-                       //code2 = bytebits_to_byte(BitStream+(size-32),32);
-                       PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %08x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo);
-               } else{
-                       //code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen);
-                       PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %08x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo);
-               }
+               PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %08x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo);

        }
        if (checksum == checkCS)
                PrintAndLog("Checksum %02x passed", checksum);
        }
        if (checksum == checkCS)
                PrintAndLog("Checksum %02x passed", checksum);


@@ -1638,21 +1652,21 @@ int CmdIndalaDecode(const char *Cmd)
        }
 
        if (!ans){
        }
 
        if (!ans){

-               if (g_debugMode==1) 
+               if (g_debugMode) 

                        PrintAndLog("Error1: %d",ans);
                return 0;
        }
        uint8_t invert=0;
        size_t size = DemodBufferLen;
                        PrintAndLog("Error1: %d",ans);
                return 0;
        }
        uint8_t invert=0;
        size_t size = DemodBufferLen;

-       size_t startIdx = indala26decode(DemodBuffer, &size, &invert);
-       if (startIdx < 1 || size > 224) {
-               if (g_debugMode==1)
+       int startIdx = indala26decode(DemodBuffer, &size, &invert);
+       if (startIdx < 0 || size > 224) {
+               if (g_debugMode)

                        PrintAndLog("Error2: %d",ans);
                return -1;
        }
                        PrintAndLog("Error2: %d",ans);
                return -1;
        }

-       setDemodBuf(DemodBuffer, size, startIdx);
+       setDemodBuf(DemodBuffer, size, (size_t)startIdx);

        if (invert)
        if (invert)

-               if (g_debugMode==1)
+               if (g_debugMode)

                        PrintAndLog("Had to invert bits");
 
        PrintAndLog("BitLen: %d",DemodBufferLen);
                        PrintAndLog("Had to invert bits");
 
        PrintAndLog("BitLen: %d",DemodBufferLen);


@@ -2365,6 +2379,12 @@ int Cmdhex2bin(const char *Cmd)
        return 0;
 }
 
        return 0;
 }
 

+int CmdDataIIR(const char *Cmd){
+       iceIIR_Butterworth(GraphBuffer, GraphTraceLen);
+       RepaintGraphWindow();
+       return 0;
+}
+

 static command_t CommandTable[] =
 {
        {"help",            CmdHelp,            1, "This help"},
 static command_t CommandTable[] =
 {
        {"help",            CmdHelp,            1, "This help"},


@@ -2411,6 +2431,7 @@ static command_t CommandTable[] =
        {"tune",            CmdTuneSamples,     0, "Get hw tune samples for graph window"},
        {"undec",           CmdUndec,           1, "Un-decimate samples by 2"},
        {"zerocrossings",   CmdZerocrossings,   1, "Count time between zero-crossings"},
        {"tune",            CmdTuneSamples,     0, "Get hw tune samples for graph window"},
        {"undec",           CmdUndec,           1, "Un-decimate samples by 2"},
        {"zerocrossings",   CmdZerocrossings,   1, "Count time between zero-crossings"},

+       {"iir",                         CmdDataIIR,                     0, "apply IIR buttersworth filter on plotdata"},

        {NULL, NULL, 0, NULL}
 };
 
        {NULL, NULL, 0, NULL}
 };