X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/f2fc0a9c4df18f9650c30320308a95b6a948e16d..946a84c35be79de8852d2c294de22f456f42a1ae:/client/cmddata.c diff --git a/client/cmddata.c b/client/cmddata.c index 49c94674..1acce2ed 100644 --- a/client/cmddata.c +++ b/client/cmddata.c @@ -444,72 +444,6 @@ int Cmdaskbiphdemod(const char *Cmd) return ASKbiphaseDemod(Cmd, true); } -//could be split to a gProxII file -//by marshmellow -//attempts to demodulate and identify a G_Prox_II verex/chubb card -//WARNING: if it fails during some points it will destroy the DemodBuffer data -// but will leave the GraphBuffer intact. -//if successful it will push askraw data back to demod buffer ready for emulation -int CmdG_Prox_II_Demod(const char *Cmd) -{ - if (!ASKbiphaseDemod(Cmd, false)){ - if (g_debugMode) PrintAndLog("Error gProxII: ASKbiphaseDemod failed 1st try"); - return 0; - } - size_t size = DemodBufferLen; - //call lfdemod.c demod for gProxII - int ans = gProxII_Demod(DemodBuffer, &size); - if (ans < 0){ - if (g_debugMode) PrintAndLog("Error gProxII_Demod"); - return 0; - } - //got a good demod of 96 bits - uint8_t ByteStream[8] = {0x00}; - uint8_t xorKey=0; - 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; - } - // 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 8 Bytes (64 bits) of decrypted raw tag data - // - 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); - - 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 %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); - PrintAndLog("G-Prox-II Found: FmtLen %d, FC %u, Card %u", (int)fmtLen, FC, Card); - } else { - 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); - return 1; -} - //by marshmellow - see ASKDemod int Cmdaskrawdemod(const char *Cmd) { @@ -1056,59 +990,6 @@ int PSKDemod(const char *Cmd, bool verbose) return 1; } -// Indala 26 bit decode -// by marshmellow -// optional arguments - same as CmdpskNRZrawDemod (clock & invert) -int CmdIndalaDecode(const char *Cmd) -{ - int ans; - if (strlen(Cmd)>0){ - ans = PSKDemod(Cmd, 0); - } else{ //default to RF/32 - ans = PSKDemod("32", 0); - } - - if (!ans){ - if (g_debugMode) - PrintAndLog("Error1: %d",ans); - return 0; - } - uint8_t invert=0; - size_t size = DemodBufferLen; - int startIdx = indala26decode(DemodBuffer, &size, &invert); - if (startIdx < 0 || size > 224) { - if (g_debugMode) - PrintAndLog("Error2: %d",ans); - return -1; - } - setDemodBuf(DemodBuffer, size, (size_t)startIdx); - if (invert) - if (g_debugMode) - PrintAndLog("Had to invert bits"); - - PrintAndLog("BitLen: %d",DemodBufferLen); - //convert UID to HEX - uint32_t uid1, uid2, uid3, uid4, uid5, uid6, uid7; - uid1=bytebits_to_byte(DemodBuffer,32); - uid2=bytebits_to_byte(DemodBuffer+32,32); - if (DemodBufferLen==64) { - PrintAndLog("Indala UID=%s (%x%08x)", sprint_bin_break(DemodBuffer,DemodBufferLen,16), uid1, uid2); - } else { - uid3=bytebits_to_byte(DemodBuffer+64,32); - uid4=bytebits_to_byte(DemodBuffer+96,32); - uid5=bytebits_to_byte(DemodBuffer+128,32); - uid6=bytebits_to_byte(DemodBuffer+160,32); - uid7=bytebits_to_byte(DemodBuffer+192,32); - PrintAndLog("Indala UID=%s (%x%08x%08x%08x%08x%08x%08x)", - sprint_bin_break(DemodBuffer,DemodBufferLen,16), uid1, uid2, uid3, uid4, uid5, uid6, uid7); - } - if (g_debugMode){ - PrintAndLog("DEBUG: printing demodbuffer:"); - printDemodBuff(); - } - return 1; -} - int CmdPSKNexWatch(const char *Cmd) { if (!PSKDemod("", false)) return 0; @@ -1829,7 +1710,6 @@ static command_t CommandTable[] = { {"help", CmdHelp, 1, "This help"}, {"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)"}, - {"askgproxiidemod", CmdG_Prox_II_Demod, 1, "Demodulate a G Prox II 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 -- Converts binary to hexadecimal"}, @@ -1854,7 +1734,6 @@ static command_t CommandTable[] = {"norm", CmdNorm, 1, "Normalize max/min to +/-128"}, {"plot", CmdPlot, 1, "Show graph window (hit 'h' in window for keystroke help)"}, {"printdemodbuffer",CmdPrintDemodBuff, 1, "[x] [o] [l] -- print the data in the DemodBuffer - 'x' for hex output"}, - {"pskindalademod", CmdIndalaDecode, 1, "[clock] [invert<0|1>] -- Demodulate an indala tag (PSK1) from GraphBuffer (args optional)"}, {"psknexwatchdemod",CmdPSKNexWatch, 1, "Demodulate a NexWatch tag (nexkey, quadrakey) (PSK1) from GraphBuffer"}, {"rawdemod", CmdRawDemod, 1, "[modulation] ... -see help (h option) -- Demodulate the data in the GraphBuffer and output binary"}, {"samples", CmdSamples, 0, "[512 - 40000] -- Get raw samples for graph window (GraphBuffer)"},