Added client-side support for recording longer samples, fixed last (?) issues on...

[proxmark3-svn] / client / cmddata.c

diff --git a/client/cmddata.c b/client/cmddata.c
index ed0a0758e12e36fff84776a3894fbec76e555702..7938458073127617f8fd2474ea992c5f20d1dcc8 100644 (file)
--- a/client/cmddata.c
+++ b/client/cmddata.c
@@ -618,7 +618,7 @@ int CmdFSKdemodHID(const char *Cmd)
     uint32_t cardnum = 0;
     if (((hi>>5)&1)==1){//if bit 38 is set then < 37 bit format is used
       uint32_t lo2=0;
-      lo2=(((hi & 15) << 12) | (lo>>20)); //get bits 21-37 to check for format len bit
+      lo2=(((hi & 31) << 12) | (lo>>20)); //get bits 21-37 to check for format len bit
       uint8_t idx3 = 1;
       while(lo2>1){ //find last bit set to 1 (format len bit)
         lo2=lo2>>1;
@@ -631,10 +631,6 @@ int CmdFSKdemodHID(const char *Cmd)
         cardnum = (lo>>1)&0xFFFF;
         fc = (lo>>17)&0xFF;
       }
-      if(fmtLen==37){
-        cardnum = (lo>>1)&0x7FFFF;
-        fc = ((hi&0xF)<<12)|(lo>>20);
-      }
       if(fmtLen==34){
         cardnum = (lo>>1)&0xFFFF;
         fc= ((hi&1)<<15)|(lo>>17);
@@ -645,10 +641,10 @@ int CmdFSKdemodHID(const char *Cmd)
       }
     }
     else { //if bit 38 is not set then 37 bit format is used
-      fmtLen= 37;
-      fc =0;
-      cardnum=0;
-      if(fmtLen==37){
+      fmtLen = 37;
+      fc = 0;
+      cardnum = 0;
+      if(fmtLen == 37){
         cardnum = (lo>>1)&0x7FFFF;
         fc = ((hi&0xF)<<12)|(lo>>20);
       }
@@ -870,24 +866,35 @@ int PSKnrzDemod(const char *Cmd){
 // optional arguments - same as CmdpskNRZrawDemod (clock & invert)
 int CmdIndalaDecode(const char *Cmd)
 {
-       int ans;
-       if (strlen(Cmd)>0)
-               ans=PSKnrzDemod(Cmd);
-       else
-               ans=PSKnrzDemod("32");
+  uint8_t verbose = 1;
+  int ans;
+  if (strlen(Cmd)>0){
+    if (Cmd[0]=='0'){
+      verbose=0;
+      ans = PSKnrzDemod("32");
+    }else{
+      ans = PSKnrzDemod(Cmd);
+    }
+  } else{ //default to RF/32
+    ans = PSKnrzDemod("32");
+  }
 
        if (ans < 0){
-               PrintAndLog("Error1: %d",ans);
+               if (verbose) 
+      PrintAndLog("Error1: %d",ans);
                return 0;
        }
        uint8_t invert=0;
        ans = indala26decode(DemodBuffer,(size_t *) &DemodBufferLen, &invert);
        if (ans < 1) {
-               PrintAndLog("Error2: %d",ans);
+               if (verbose)
+      PrintAndLog("Error2: %d",ans);
                return -1;
        }
        char showbits[251];
-       if(invert==1) PrintAndLog("Had to invert bits");
+       if (invert)
+    if (verbose)
+      PrintAndLog("Had to invert bits");
        //convert UID to HEX
        uint32_t uid1, uid2, uid3, uid4, uid5, uid6, uid7;
        int idx;
@@ -951,11 +958,19 @@ int CmdPskClean(const char *Cmd)
 //prints binary found and saves in graphbuffer for further commands
 int CmdpskNRZrawDemod(const char *Cmd)
 {
-       int errCnt= PSKnrzDemod(Cmd);
+  uint8_t verbose = 1;
+  int errCnt;
+  if (strlen(Cmd)>0){
+    if (Cmd[0]=='0')
+      verbose=0;
+  }
+
+  errCnt = PSKnrzDemod(Cmd);
        //output
        if (errCnt<0) return 0;
        if (errCnt>0){
-               PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt);
+               if (verbose)
+      PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt);
        }
        PrintAndLog("PSK or NRZ demoded bitstream:");
        // Now output the bitstream to the scrollback by line of 16 bits
@@ -1036,6 +1051,29 @@ int CmdHpf(const char *Cmd)
   RepaintGraphWindow();
   return 0;
 }
+typedef struct {
+       uint8_t * buffer;
+       uint32_t numbits;
+       uint32_t position;
+}BitstreamOut;
+
+bool _headBit( BitstreamOut *stream)
+{
+       int bytepos = stream->position >> 3; // divide by 8
+       int bitpos = (stream->position++) & 7; // mask out 00000111
+       return (*(stream->buffer + bytepos) >> (7-bitpos)) & 1;
+}
+
+uint8_t getByte(uint8_t bits_per_sample, BitstreamOut* b)
+{
+       int i;
+       uint8_t val = 0;
+       for(i =0 ; i < bits_per_sample; i++)
+       {
+               val |= (_headBit(b) << (7-i));
+       }
+       return val;
+}
 
 int CmdSamples(const char *Cmd)
 {
@@ -1048,15 +1086,35 @@ int CmdSamples(const char *Cmd)
        if (n > sizeof(got))
                n = sizeof(got);
 
-       PrintAndLog("Reading %d samples from device memory\n", n);
-  GetFromBigBuf(got,n,0);
-  WaitForResponse(CMD_ACK,NULL);
-       for (int j = 0; j < n; j++) {
-               GraphBuffer[j] = ((int)got[j]) - 128;
-  }
-  GraphTraceLen = n;
-  RepaintGraphWindow();
-  return 0;
+       PrintAndLog("Reading %d bytes from device memory\n", n);
+       GetFromBigBuf(got,n,0);
+       PrintAndLog("Data fetched");
+       UsbCommand response;
+       WaitForResponse(CMD_ACK, &response);
+       uint8_t bits_per_sample = response.arg[0];
+       PrintAndLog("Samples packed at %d bits per sample", bits_per_sample);
+       if(bits_per_sample < 8)
+       {
+               PrintAndLog("Unpacking...");
+               BitstreamOut bout = { got, bits_per_sample * n,  0};
+               int j =0;
+               for (j = 0; j * bits_per_sample < n * 8 && j < GraphTraceLen; j++) {
+                       uint8_t sample = getByte(bits_per_sample, &bout);
+                       GraphBuffer[j] = ((int) sample )- 128;
+               }
+               GraphTraceLen = j;
+               PrintAndLog("Unpacked %d samples" , j );
+       }else
+       {
+               for (int j = 0; j < n; j++) {
+                       GraphBuffer[j] = ((int)got[j]) - 128;
+               }
+               GraphTraceLen = n;
+
+       }
+
+       RepaintGraphWindow();
+       return 0;
 }
 
 int CmdTuneSamples(const char *Cmd)