X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/e09f21fa7b754a2f214efbebc622045138828096..a8cd503dd5b68ab727fc9ed68f11d68bc6d7b41a:/client/cmddata.c diff --git a/client/cmddata.c b/client/cmddata.c index b8b95c04..cea3bcfe 100644 --- a/client/cmddata.c +++ b/client/cmddata.c @@ -32,6 +32,12 @@ static int CmdHelp(const char *Cmd); //by marshmellow void setDemodBuf(uint8_t *buff, size_t size, size_t startIdx) { + if (buff == NULL) + return; + + if ( size >= MAX_DEMOD_BUF_LEN) + size = MAX_DEMOD_BUF_LEN; + size_t i = 0; for (; i < size; i++){ DemodBuffer[i]=buff[startIdx++]; @@ -86,7 +92,24 @@ void printDemodBuff(void) int CmdPrintDemodBuff(const char *Cmd) { - printDemodBuff(); + char hex; + char printBuff[512]={0x00}; + uint8_t numBits = DemodBufferLen & 0xFFF0; + sscanf(Cmd, "%c", &hex); + if (hex == 'h'){ + PrintAndLog("Usage: data printdemodbuffer [x]"); + PrintAndLog("Options: "); + PrintAndLog(" h This help"); + PrintAndLog(" x output in hex (omit for binary output)"); + return 0; + } + if (hex == 'x'){ + numBits = binarraytohex(printBuff, (char *)DemodBuffer, numBits); + if (numBits==0) return 0; + PrintAndLog("DemodBuffer: %s",printBuff); + } else { + printDemodBuff(); + } return 1; } int CmdAmp(const char *Cmd) @@ -133,20 +156,19 @@ int CmdAmp(const char *Cmd) * Updates the Graph trace with 0/1 values * * Arguments: - * c : 0 or 1 + * c : 0 or 1 (or invert) */ - //this method is dependant on all highs and lows to be the same(or clipped) this creates issues[marshmellow] it also ignores the clock + //this method ignores the clock + + //this function strictly converts highs and lows to 1s and 0s for each sample in the graphbuffer int Cmdaskdemod(const char *Cmd) { int i; int c, high = 0, low = 0; - // TODO: complain if we do not give 2 arguments here ! - // (AL - this doesn't make sense! we're only using one argument!!!) sscanf(Cmd, "%i", &c); - /* Detect high and lows and clock */ - // (AL - clock???) + /* Detect high and lows */ for (i = 0; i < GraphTraceLen; ++i) { if (GraphBuffer[i] > high) @@ -176,9 +198,9 @@ int Cmdaskdemod(const char *Cmd) * down) */ //[marhsmellow] change == to >= for high and <= for low for fuzz - if ((GraphBuffer[i] == high) && (GraphBuffer[i - 1] == c)) { + if ((GraphBuffer[i] >= high) && (GraphBuffer[i - 1] == c)) { GraphBuffer[i] = 1 - c; - } else if ((GraphBuffer[i] == low) && (GraphBuffer[i - 1] == (1 - c))){ + } else if ((GraphBuffer[i] <= low) && (GraphBuffer[i - 1] == (1 - c))){ GraphBuffer[i] = c; } else { /* No transition */ @@ -189,6 +211,23 @@ int Cmdaskdemod(const char *Cmd) return 0; } +//this function strictly converts >1 to 1 and <1 to 0 for each sample in the graphbuffer +int CmdGetBitStream(const char *Cmd) +{ + int i; + CmdHpf(Cmd); + for (i = 0; i < GraphTraceLen; i++) { + if (GraphBuffer[i] >= 1) { + GraphBuffer[i] = 1; + } else { + GraphBuffer[i] = 0; + } + } + RepaintGraphWindow(); + return 0; +} + + //by marshmellow void printBitStream(uint8_t BitStream[], uint32_t bitLen) { @@ -504,6 +543,7 @@ int CmdBiphaseDecodeRaw(const char *Cmd) PrintAndLog("Biphase Decoded using offset: %d - # errors:%d - data:",offset,errCnt); printBitStream(BitStream, size); PrintAndLog("\nif bitstream does not look right try offset=1"); + if (offset == 1) setDemodBuf(DemodBuffer,DemodBufferLen-1,1); //remove first bit from raw demod return 1; } @@ -518,7 +558,7 @@ void setBiphaseDemodBuf(uint8_t *BitStream, size_t size) return; } for (size_t idx=0; idx (8*32)+2) size = (8*32)+2; //only output a max of 8 blocks of 32 bits most tags will have full bit stream inside that sample size if (verbose) { PrintAndLog("FSK decoded bitstream:"); - printBitStream(BitStream,size); + printBitStream(BitStream,size); } return 1; @@ -1746,7 +1786,8 @@ int NRZrawDemod(const char *Cmd, bool verbose) if (g_debugMode==1 && verbose) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt); return 0; } - PrintAndLog("Tried NRZ Demod using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen); + if (verbose) + PrintAndLog("Tried NRZ Demod using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen); //prime demod buffer for output setDemodBuf(BitStream,BitLen,0); @@ -1754,9 +1795,9 @@ int NRZrawDemod(const char *Cmd, bool verbose) PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt); } if (verbose) { - PrintAndLog("NRZ demoded bitstream:"); - // Now output the bitstream to the scrollback by line of 16 bits - printDemodBuff(); + PrintAndLog("NRZ demoded bitstream:"); + // Now output the bitstream to the scrollback by line of 16 bits + printDemodBuff(); } return 1; } @@ -1770,11 +1811,11 @@ int CmdNRZrawDemod(const char *Cmd) PrintAndLog(" , 1 for invert output"); PrintAndLog(" [set maximum allowed errors], default = 100."); PrintAndLog(""); - PrintAndLog(" sample: data nrzrawdemod = demod a nrz/direct tag from GraphBuffer"); - PrintAndLog(" : data nrzrawdemod 32 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32"); - PrintAndLog(" : data nrzrawdemod 32 1 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32 and inverting data"); - PrintAndLog(" : data nrzrawdemod 1 = demod a nrz/direct tag from GraphBuffer while inverting data"); - PrintAndLog(" : data nrzrawdemod 64 1 0 = demod a nrz/direct tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors"); + PrintAndLog(" sample: data rawdemod nr = demod a nrz/direct tag from GraphBuffer"); + PrintAndLog(" : data rawdemod nr 32 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32"); + PrintAndLog(" : data rawdemod nr 32 1 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32 and inverting data"); + PrintAndLog(" : data rawdemod nr 1 = demod a nrz/direct tag from GraphBuffer while inverting data"); + PrintAndLog(" : data rawdemod nr 64 1 0 = demod a nrz/direct tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors"); return 0; } return NRZrawDemod(Cmd, TRUE); @@ -1794,11 +1835,11 @@ int CmdPSK1rawDemod(const char *Cmd) PrintAndLog(" , 1 for invert output"); PrintAndLog(" [set maximum allowed errors], default = 100."); PrintAndLog(""); - PrintAndLog(" sample: data psk1rawdemod = demod a psk1 tag from GraphBuffer"); - PrintAndLog(" : data psk1rawdemod 32 = demod a psk1 tag from GraphBuffer using a clock of RF/32"); - PrintAndLog(" : data psk1rawdemod 32 1 = demod a psk1 tag from GraphBuffer using a clock of RF/32 and inverting data"); - PrintAndLog(" : data psk1rawdemod 1 = demod a psk1 tag from GraphBuffer while inverting data"); - PrintAndLog(" : data psk1rawdemod 64 1 0 = demod a psk1 tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors"); + PrintAndLog(" sample: data rawdemod p1 = demod a psk1 tag from GraphBuffer"); + PrintAndLog(" : data rawdemod p1 32 = demod a psk1 tag from GraphBuffer using a clock of RF/32"); + PrintAndLog(" : data rawdemod p1 32 1 = demod a psk1 tag from GraphBuffer using a clock of RF/32 and inverting data"); + PrintAndLog(" : data rawdemod p1 1 = demod a psk1 tag from GraphBuffer while inverting data"); + PrintAndLog(" : data rawdemod p1 64 1 0 = demod a psk1 tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors"); return 0; } errCnt = PSKDemod(Cmd, TRUE); @@ -1828,11 +1869,11 @@ int CmdPSK2rawDemod(const char *Cmd) PrintAndLog(" , 1 for invert output"); PrintAndLog(" [set maximum allowed errors], default = 100."); PrintAndLog(""); - PrintAndLog(" sample: data psk2rawdemod = demod a psk2 tag from GraphBuffer, autodetect clock"); - PrintAndLog(" : data psk2rawdemod 32 = demod a psk2 tag from GraphBuffer using a clock of RF/32"); - PrintAndLog(" : data psk2rawdemod 32 1 = demod a psk2 tag from GraphBuffer using a clock of RF/32 and inverting output"); - PrintAndLog(" : data psk2rawdemod 1 = demod a psk2 tag from GraphBuffer, autodetect clock and invert output"); - PrintAndLog(" : data psk2rawdemod 64 1 0 = demod a psk2 tag from GraphBuffer using a clock of RF/64, inverting output and allowing 0 demod errors"); + PrintAndLog(" sample: data rawdemod p2 = demod a psk2 tag from GraphBuffer, autodetect clock"); + PrintAndLog(" : data rawdemod p2 32 = demod a psk2 tag from GraphBuffer using a clock of RF/32"); + PrintAndLog(" : data rawdemod p2 32 1 = demod a psk2 tag from GraphBuffer using a clock of RF/32 and inverting output"); + PrintAndLog(" : data rawdemod p2 1 = demod a psk2 tag from GraphBuffer, autodetect clock and invert output"); + PrintAndLog(" : data rawdemod p2 64 1 0 = demod a psk2 tag from GraphBuffer using a clock of RF/64, inverting output and allowing 0 demod errors"); return 0; } errCnt=PSKDemod(Cmd, TRUE); @@ -1954,6 +1995,7 @@ int CmdHide(const char *Cmd) return 0; } +//zero mean GraphBuffer int CmdHpf(const char *Cmd) { int i; @@ -2561,6 +2603,7 @@ static command_t CommandTable[] = {"fskpyramiddemod",CmdFSKdemodPyramid,1, "Demodulate a Pyramid FSK tag from GraphBuffer"}, {"fskparadoxdemod",CmdFSKdemodParadox,1, "Demodulate a Paradox FSK tag from GraphBuffer"}, //{"fskrawdemod", CmdFSKrawdemod, 1, "[clock rate] [invert] [rchigh] [rclow] Demodulate graph window from FSK to bin (clock = 50)(invert = 1|0)(rchigh = 10)(rclow=8)"}, + {"getbitstream", CmdGetBitStream, 1, "Convert GraphBuffer's >=1 values to 1 and <1 to 0"}, {"grid", CmdGrid, 1, " -- overlay grid on graph window, use zero value to turn off either"}, {"hexsamples", CmdHexsamples, 0, " [] -- Dump big buffer as hex bytes"}, {"hide", CmdHide, 1, "Hide graph window"}, @@ -2576,7 +2619,7 @@ static command_t CommandTable[] = //{"nrzrawdemod", CmdNRZrawDemod, 1, "[clock] [invert<0|1>] [maxErr] -- Attempt to demodulate nrz tags and output binary (args optional)"}, {"plot", CmdPlot, 1, "Show graph window (hit 'h' in window for keystroke help)"}, //{"pskdetectclock",CmdDetectPSKClockRate, 1, "Detect ASK, PSK, or NRZ clock rate"}, - {"printdemodbuffer",CmdPrintDemodBuff,1, "[clock] [invert<0|1>] -- Demodulate an indala tag (PSK1) from GraphBuffer (args optional)"}, + {"printdemodbuffer",CmdPrintDemodBuff,1, "[x] -- 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)"}, //{"psk1rawdemod", CmdPSK1rawDemod, 1, "[clock] [invert<0|1>] [maxErr] -- Attempt to demodulate psk1 tags and output binary (args optional)"}, //{"psk2rawdemod", CmdPSK2rawDemod, 1, "[clock] [invert<0|1>] [maxErr] -- Attempt to demodulate psk2 tags and output binary (args optional)"},