Add Viking demod,

[proxmark3-svn] / client / cmddata.c

diff --git a/client/cmddata.c b/client/cmddata.c
index 0907f3c538efbc36b9aec69179e8c35ac0d47723..663faf808e23ef490f1cbddb92502712cf11c100 100644 (file)
--- a/client/cmddata.c
+++ b/client/cmddata.c
@@ -637,6 +637,32 @@ int CmdG_Prox_II_Demod(const char *Cmd)
        return 1;
 }
 
+//by marshmellow
+//see ASKDemod for what args are accepted
+int CmdVikingDemod(const char *Cmd)
+{
+       if (!ASKDemod(Cmd, false, false, 1)) {
+               if (g_debugMode) PrintAndLog("ASKDemod failed");
+               return 0;
+       }
+       size_t size = DemodBufferLen;
+       //call lfdemod.c demod for gProxII
+       int ans = VikingDemod_AM(DemodBuffer, &size);
+       if (ans < 0) {
+               if (g_debugMode) PrintAndLog("Error Viking_Demod");
+               return 0;
+       }
+       //got a good demod
+       uint32_t raw1 = bytebits_to_byte(DemodBuffer+ans, 32);
+       uint32_t raw2 = bytebits_to_byte(DemodBuffer+ans+32, 32);
+       uint32_t cardid = bytebits_to_byte(DemodBuffer+ans+24, 32);
+       uint8_t checksum = bytebits_to_byte(DemodBuffer+ans+32+24, 8);
+       PrintAndLog("Viking Tag Found: Card ID %08X, Checksum: %02X", cardid, checksum);
+       PrintAndLog("Raw: %08X%08X", raw1,raw2);
+       setDemodBuf(DemodBuffer+ans, 64, 0);
+       return 1;
+}
+
 //by marshmellow - see ASKDemod
 int Cmdaskrawdemod(const char *Cmd)
 {
@@ -1130,8 +1156,6 @@ int CmdFSKdemodParadox(const char *Cmd)
 //print ioprox ID and some format details
 int CmdFSKdemodIO(const char *Cmd)
 {
-       //raw fsk demod no manchester decoding no start bit finding just get binary from wave
-       //set defaults
        int idx=0;
        //something in graphbuffer?
        if (GraphTraceLen < 65) {
@@ -1220,11 +1244,6 @@ int CmdFSKdemodIO(const char *Cmd)
 //print full AWID Prox ID and some bit format details if found
 int CmdFSKdemodAWID(const char *Cmd)
 {
-
-       //int verbose=1;
-       //sscanf(Cmd, "%i", &verbose);
-
-       //raw fsk demod no manchester decoding no start bit finding just get binary from wave
        uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
        size_t size = getFromGraphBuf(BitStream);
        if (size==0) return 0;
@@ -1423,7 +1442,6 @@ int CmdFSKdemodPyramid(const char *Cmd)
        uint32_t fc = 0;
        uint32_t cardnum = 0;
        uint32_t code1 = 0;
-       //uint32_t code2 = 0;
        if (fmtLen==26){
                fc = bytebits_to_byte(BitStream+73, 8);
                cardnum = bytebits_to_byte(BitStream+81, 16);
@@ -2353,8 +2371,10 @@ static command_t CommandTable[] =
        {"askedgedetect",   CmdAskEdgeDetect,   1, "[threshold] Adjust Graph for manual ask demod using the length of sample differences to detect the edge of a wave (use 20-45, def:25)"},
        {"askem410xdemod",  CmdAskEM410xDemod,  1, "[clock] [invert<0|1>] [maxErr] -- Demodulate an EM410x tag from GraphBuffer (args optional)"},
        {"askgproxiidemod", CmdG_Prox_II_Demod, 1, "Demodulate a G Prox II tag from GraphBuffer"},
+       {"askvikingdemod",  CmdVikingDemod,     1, "Demodulate a Viking tag from GraphBuffer"},
        {"autocorr",        CmdAutoCorr,        1, "[window length] [g] -- Autocorrelation over window - g to save back to GraphBuffer (overwrite)"},
        {"biphaserawdecode",CmdBiphaseDecodeRaw,1, "[offset] [invert<0|1>] [maxErr] -- Biphase decode bin stream in DemodBuffer (offset = 0|1 bits to shift the decode start)"},
+       {"bin2hex",         Cmdbin2hex,         1, "bin2hex <digits>     -- Converts binary to hexadecimal"},
        {"bitsamples",      CmdBitsamples,      0, "Get raw samples as bitstring"},
        {"buffclear",       CmdBuffClear,       1, "Clear sample buffer and graph window"},
        {"dec",             CmdDec,             1, "Decimate samples"},
@@ -2369,9 +2389,7 @@ static command_t CommandTable[] =
        {"getbitstream",    CmdGetBitStream,    1, "Convert GraphBuffer's >=1 values to 1 and <1 to 0"},
        {"grid",            CmdGrid,            1, "<x> <y> -- overlay grid on graph window, use zero value to turn off either"},
        {"hexsamples",      CmdHexsamples,      0, "<bytes> [<offset>] -- Dump big buffer as hex bytes"},
-       {"bin2hex",         Cmdbin2hex,         1, "bin2hex <digits>     -- Converts binary to hexadecimal"},
        {"hex2bin",         Cmdhex2bin,         1, "hex2bin <hexadecimal> -- Converts hexadecimal to binary"},
-       {"hexsamples",      CmdHexsamples,      0, "<bytes> [<offset>] -- Dump big buffer as hex bytes"},
        {"hide",            CmdHide,            1, "Hide graph window"},
        {"hpf",             CmdHpf,             1, "Remove DC offset from trace"},
        {"load",            CmdLoad,            1, "<filename> -- Load trace (to graph window"},