X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/ec75f5c10a91211e50b74af181b827fc93a6dcd5..146c201cbe67cf3967cb497b3d67fb579c3ccb0e:/client/cmddata.c diff --git a/client/cmddata.c b/client/cmddata.c index 578587bc..430afb17 100644 --- a/client/cmddata.c +++ b/client/cmddata.c @@ -21,6 +21,8 @@ #include "cmdmain.h" #include "cmddata.h" #include "lfdemod.h" +#include "usb_cmd.h" + uint8_t DemodBuffer[MAX_DEMOD_BUF_LEN]; uint8_t g_debugMode; int DemodBufferLen; @@ -56,6 +58,10 @@ void printDemodBuff() return; } if (bitLen>512) bitLen=512; //max output to 512 bits if we have more - should be plenty + + // ensure equally divided by 16 + bitLen &= 0xfff0; + for (i = 0; i <= (bitLen-16); i+=16) { PrintAndLog("%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i", DemodBuffer[i], @@ -188,6 +194,11 @@ void printBitStream(uint8_t BitStream[], uint32_t bitLen) return; } if (bitLen>512) bitLen=512; + + // ensure equally divided by 16 + bitLen &= 0xfff0; + + for (i = 0; i <= (bitLen-16); i+=16) { PrintAndLog("%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i", BitStream[i], @@ -537,10 +548,6 @@ int CmdBitstream(const char *Cmd) bit ^= 1; AppendGraph(0, clock, bit); - // for (j = 0; j < (int)(clock/2); j++) - // GraphBuffer[(i * clock) + j] = bit ^ 1; - // for (j = (int)(clock/2); j < clock; j++) - // GraphBuffer[(i * clock) + j] = bit; } RepaintGraphWindow(); @@ -564,6 +571,43 @@ int CmdDec(const char *Cmd) RepaintGraphWindow(); return 0; } +/** + * Undecimate - I'd call it 'interpolate', but we'll save that + * name until someone does an actual interpolation command, not just + * blindly repeating samples + * @param Cmd + * @return + */ +int CmdUndec(const char *Cmd) +{ + if(param_getchar(Cmd, 0) == 'h') + { + PrintAndLog("Usage: data undec [factor]"); + PrintAndLog("This function performs un-decimation, by repeating each sample N times"); + PrintAndLog("Options: "); + PrintAndLog(" h This help"); + PrintAndLog(" factor The number of times to repeat each sample.[default:2]"); + PrintAndLog("Example: 'data undec 3'"); + return 0; + } + + uint8_t factor = param_get8ex(Cmd, 0,2, 10); + //We have memory, don't we? + int swap[MAX_GRAPH_TRACE_LEN] = { 0 }; + uint32_t g_index = 0 ,s_index = 0; + while(g_index < GraphTraceLen && s_index < MAX_GRAPH_TRACE_LEN) + { + int count = 0; + for(count = 0; count < factor && s_index+count < MAX_GRAPH_TRACE_LEN; count ++) + swap[s_index+count] = GraphBuffer[g_index]; + s_index+=count; + } + + memcpy(GraphBuffer,swap, s_index * sizeof(int)); + GraphTraceLen = s_index; + RepaintGraphWindow(); + return 0; +} //by marshmellow //shift graph zero up or down based on input + or - @@ -604,22 +648,40 @@ int CmdFSKrawdemod(const char *Cmd) { //raw fsk demod no manchester decoding no start bit finding just get binary from wave //set defaults - int rfLen = 50; + int rfLen = 0; int invert=0; - int fchigh=10; - int fclow=8; + int fchigh=0; + int fclow=0; //set options from parameters entered with the command sscanf(Cmd, "%i %i %i %i", &rfLen, &invert, &fchigh, &fclow); if (strlen(Cmd)>0 && strlen(Cmd)<=2) { if (rfLen==1){ invert=1; //if invert option only is used - rfLen = 50; - } else if(rfLen==0) rfLen=50; + rfLen = 0; + } } - PrintAndLog("Args invert: %d - Clock:%d - fchigh:%d - fclow: %d",invert,rfLen,fchigh, fclow); + uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; size_t BitLen = getFromGraphBuf(BitStream); + //get field clock lengths + uint16_t fcs=0; + if (fchigh==0 || fclow == 0){ + fcs=countFC(BitStream, BitLen); + if (fcs==0){ + fchigh=10; + fclow=8; + }else{ + fchigh = (fcs >> 8) & 0xFF; + fclow = fcs & 0xFF; + } + } + //get bit clock length + if (rfLen==0){ + rfLen = detectFSKClk(BitStream, BitLen, fchigh, fclow); + if (rfLen == 0) rfLen = 50; + } + PrintAndLog("Args invert: %d - Clock:%d - fchigh:%d - fclow: %d",invert,rfLen,fchigh, fclow); int size = fskdemod(BitStream,BitLen,(uint8_t)rfLen,(uint8_t)invert,(uint8_t)fchigh,(uint8_t)fclow); if (size>0){ PrintAndLog("FSK decoded bitstream:"); @@ -645,9 +707,21 @@ int CmdFSKdemodHID(const char *Cmd) uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; size_t BitLen = getFromGraphBuf(BitStream); //get binary from fsk wave - size_t idx = HIDdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo); + int idx = HIDdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo); if (idx<0){ - if (g_debugMode) PrintAndLog("DEBUG: Error demoding fsk"); + if (g_debugMode){ + if (idx==-1){ + PrintAndLog("DEBUG: Just Noise Detected"); + } else if (idx == -2) { + PrintAndLog("DEBUG: Error demoding fsk"); + } else if (idx == -3) { + PrintAndLog("DEBUG: Preamble not found"); + } else if (idx == -4) { + PrintAndLog("DEBUG: Error in Manchester data, SIZE: %d", BitLen); + } else { + PrintAndLog("DEBUG: Error demoding fsk %d", idx); + } + } return 0; } if (hi2==0 && hi==0 && lo==0) { @@ -707,8 +781,8 @@ int CmdFSKdemodHID(const char *Cmd) return 1; } -//by marshmellow (based on existing demod + holiman's refactor) -//Paradox Prox demod - FSK RF/50 with preamble of 00011101 (then manchester encoded) +//by marshmellow +//Paradox Prox demod - FSK RF/50 with preamble of 00001111 (then manchester encoded) //print full Paradox Prox ID and some bit format details if found int CmdFSKdemodParadox(const char *Cmd) { @@ -718,9 +792,21 @@ int CmdFSKdemodParadox(const char *Cmd) uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; size_t BitLen = getFromGraphBuf(BitStream); //get binary from fsk wave - size_t idx = ParadoxdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo); + int idx = ParadoxdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo); if (idx<0){ - if (g_debugMode) PrintAndLog("DEBUG: Error demoding fsk"); + if (g_debugMode){ + if (idx==-1){ + PrintAndLog("DEBUG: Just Noise Detected"); + } else if (idx == -2) { + PrintAndLog("DEBUG: Error demoding fsk"); + } else if (idx == -3) { + PrintAndLog("DEBUG: Preamble not found"); + } else if (idx == -4) { + PrintAndLog("DEBUG: Error in Manchester data"); + } else { + PrintAndLog("DEBUG: Error demoding fsk %d", idx); + } + } return 0; } if (hi2==0 && hi==0 && lo==0){ @@ -760,7 +846,21 @@ int CmdFSKdemodIO(const char *Cmd) //get binary from fsk wave idx = IOdemodFSK(BitStream,BitLen); if (idx<0){ - if (g_debugMode==1) PrintAndLog("DEBUG: demoding fsk error: %d", idx); + if (g_debugMode){ + if (idx==-1){ + PrintAndLog("DEBUG: Just Noise Detected"); + } else if (idx == -2) { + PrintAndLog("DEBUG: not enough samples"); + } else if (idx == -3) { + PrintAndLog("DEBUG: error during fskdemod"); + } else if (idx == -4) { + PrintAndLog("DEBUG: Preamble not found"); + } else if (idx == -5) { + PrintAndLog("DEBUG: Separator bits not found"); + } else { + PrintAndLog("DEBUG: Error demoding fsk %d", idx); + } + } return 0; } if (idx==0){ @@ -820,13 +920,13 @@ int CmdFSKdemodAWID(const char *Cmd) size_t size = getFromGraphBuf(BitStream); //get binary from fsk wave - int idx = AWIDdemodFSK(BitStream, size); + int idx = AWIDdemodFSK(BitStream, &size); if (idx<=0){ if (g_debugMode==1){ if (idx == -1) PrintAndLog("DEBUG: Error - not enough samples"); else if (idx == -2) - PrintAndLog("DEBUG: Error - only noise found - no waves"); + PrintAndLog("DEBUG: Error - only noise found"); else if (idx == -3) PrintAndLog("DEBUG: Error - problem during FSK demod"); // else if (idx == -3) @@ -834,7 +934,7 @@ int CmdFSKdemodAWID(const char *Cmd) else if (idx == -4) PrintAndLog("DEBUG: Error - AWID preamble not found"); else if (idx == -5) - PrintAndLog("DEBUG: Error - Second AWID preamble not found"); + PrintAndLog("DEBUG: Error - Size not correct: %d", size); else PrintAndLog("DEBUG: Error %d",idx); } @@ -919,17 +1019,17 @@ int CmdFSKdemodPyramid(const char *Cmd) size_t size = getFromGraphBuf(BitStream); //get binary from fsk wave - int idx = PyramiddemodFSK(BitStream, size); + int idx = PyramiddemodFSK(BitStream, &size); if (idx < 0){ if (g_debugMode==1){ if (idx == -5) PrintAndLog("DEBUG: Error - not enough samples"); else if (idx == -1) - PrintAndLog("DEBUG: Error - only noise found - no waves"); + PrintAndLog("DEBUG: Error - only noise found"); else if (idx == -2) PrintAndLog("DEBUG: Error - problem during FSK demod"); else if (idx == -3) - PrintAndLog("DEBUG: Error - Second Pyramid preamble not found"); + PrintAndLog("DEBUG: Error - Size not correct: %d", size); else if (idx == -4) PrintAndLog("DEBUG: Error - Pyramid preamble not found"); else @@ -1025,7 +1125,6 @@ int CmdFSKdemodPyramid(const char *Cmd) PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo); } } - //todo - convert hi2, hi, lo to demodbuffer for future sim/clone commands if (g_debugMode){ PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, 128); printDemodBuff(); @@ -1119,8 +1218,7 @@ int CmdFSKdemod(const char *Cmd) //old CmdFSKdemod needs updating PrintAndLog("actual data bits start at sample %d", maxPos); PrintAndLog("length %d/%d", highLen, lowLen); - uint8_t bits[46]; - bits[sizeof(bits)-1] = '\0'; + uint8_t bits[46] = {0x00}; // find bit pairs and manchester decode them for (i = 0; i < arraylen(bits) - 1; ++i) { @@ -1159,23 +1257,36 @@ int CmdFSKfcDetect(const char *Cmd) uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; size_t size = getFromGraphBuf(BitStream); - - uint32_t ans = countFC(BitStream, size); - int fc1, fc2, rf1; + uint16_t ans = countFC(BitStream, size); + if (ans==0) { + if (g_debugMode) PrintAndLog("DEBUG: No data found"); + return 0; + } + uint8_t fc1, fc2; fc1 = (ans >> 8) & 0xFF; fc2 = ans & 0xFF; - rf1 = (ans >>16) & 0xFF; + + uint8_t rf1 = detectFSKClk(BitStream, size, fc1, fc2); + if (rf1==0) { + if (g_debugMode) PrintAndLog("DEBUG: Clock detect error"); + return 0; + } PrintAndLog("Detected Field Clocks: FC/%d, FC/%d - Bit Clock: RF/%d", fc1, fc2, rf1); return 1; } +//by marshmellow +//attempt to detect the bit clock for PSK or NRZ modulations int CmdDetectNRZpskClockRate(const char *Cmd) { GetNRZpskClock("",0,0); return 0; } -int PSKnrzDemod(const char *Cmd) +//by marshmellow +//attempt to psk1 or nrz demod graph buffer +//NOTE CURRENTLY RELIES ON PEAKS :( +int PSKnrzDemod(const char *Cmd, uint8_t verbose) { int invert=0; int clk=0; @@ -1192,7 +1303,7 @@ int PSKnrzDemod(const char *Cmd) if (g_debugMode==1) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt); return -1; } - PrintAndLog("Tried PSK/NRZ Demod using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen); + if (verbose) PrintAndLog("Tried PSK/NRZ Demod using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen); //prime demod buffer for output setDemodBuf(BitStream,BitLen,0); @@ -1205,9 +1316,9 @@ int CmdIndalaDecode(const char *Cmd) { int ans; if (strlen(Cmd)>0){ - ans = PSKnrzDemod(Cmd); + ans = PSKnrzDemod(Cmd, 0); } else{ //default to RF/32 - ans = PSKnrzDemod("32"); + ans = PSKnrzDemod("32", 0); } if (ans < 0){ @@ -1222,7 +1333,7 @@ int CmdIndalaDecode(const char *Cmd) PrintAndLog("Error2: %d",ans); return -1; } - char showbits[251]; + char showbits[251]={0x00}; if (invert) if (g_debugMode==1) PrintAndLog("Had to invert bits"); @@ -1272,9 +1383,16 @@ int CmdIndalaDecode(const char *Cmd) showbits[idx]='\0'; PrintAndLog("Indala UID=%s (%x%08x%08x%08x%08x%08x%08x)", showbits, uid1, uid2, uid3, uid4, uid5, uid6, uid7); } + if (g_debugMode){ + PrintAndLog("DEBUG: printing demodbuffer:"); + printDemodBuff(); + } return 1; } +//by marshmellow +//attempt to clean psk wave noise after a peak +//NOTE RELIES ON PEAKS :( int CmdPskClean(const char *Cmd) { uint8_t bitStream[MAX_GRAPH_TRACE_LEN]={0}; @@ -1284,15 +1402,15 @@ int CmdPskClean(const char *Cmd) return 0; } -//by marshmellow -//takes 2 arguments - clock and invert both as integers -//attempts to demodulate ask only -//prints binary found and saves in graphbuffer for further commands +// by marshmellow +// takes 2 arguments - clock and invert both as integers +// attempts to demodulate psk only +// prints binary found and saves in demodbuffer for further commands int CmdpskNRZrawDemod(const char *Cmd) { int errCnt; - errCnt = PSKnrzDemod(Cmd); + errCnt = PSKnrzDemod(Cmd, 1); //output if (errCnt<0){ if (g_debugMode) PrintAndLog("Error demoding: %d",errCnt); @@ -1314,6 +1432,32 @@ int CmdpskNRZrawDemod(const char *Cmd) return 0; } +// by marshmellow +// takes same args as cmdpsknrzrawdemod +int CmdPSK2rawDemod(const char *Cmd) +{ + int errCnt=0; + errCnt=PSKnrzDemod(Cmd, 1); + if (errCnt<0){ + if (g_debugMode) PrintAndLog("Error demoding: %d",errCnt); + return 0; + } + psk1TOpsk2(DemodBuffer, DemodBufferLen); + if (errCnt>0){ + if (g_debugMode){ + PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt); + PrintAndLog("PSK2 demoded bitstream:"); + // Now output the bitstream to the scrollback by line of 16 bits + printDemodBuff(); + } + }else{ + PrintAndLog("PSK2 demoded bitstream:"); + // Now output the bitstream to the scrollback by line of 16 bits + printDemodBuff(); + } + return 1; +} + int CmdGrid(const char *Cmd) { sscanf(Cmd, "%i %i", &PlotGridX, &PlotGridY); @@ -1330,7 +1474,7 @@ int CmdHexsamples(const char *Cmd) int offset = 0; char string_buf[25]; char* string_ptr = string_buf; - uint8_t got[40000]; + uint8_t got[BIGBUF_SIZE]; sscanf(Cmd, "%i %i", &requested, &offset); @@ -1339,7 +1483,7 @@ int CmdHexsamples(const char *Cmd) requested = 8; } if (offset + requested > sizeof(got)) { - PrintAndLog("Tried to read past end of buffer, + > 40000"); + PrintAndLog("Tried to read past end of buffer, + > %d", BIGBUF_SIZE); return 0; } @@ -1386,27 +1530,81 @@ 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) { - uint8_t got[40000]; + //If we get all but the last byte in bigbuf, + // we don't have to worry about remaining trash + // in the last byte in case the bits-per-sample + // does not line up on byte boundaries + uint8_t got[BIGBUF_SIZE-1] = { 0 }; int n = strtol(Cmd, NULL, 0); if (n == 0) - n = 20000; + n = sizeof(got); 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 = 8; + + //Old devices without this feature would send 0 at arg[0] + if(response.arg[0] > 0) + { + sample_config *sc = (sample_config *) response.d.asBytes; + PrintAndLog("Samples @ %d bits/smpl, decimation 1:%d ", sc->bits_per_sample + , sc->decimation); + bits_per_sample = sc->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 < sizeof(GraphBuffer); 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) @@ -1928,8 +2126,9 @@ static command_t CommandTable[] = {"plot", CmdPlot, 1, "Show graph window (hit 'h' in window for keystroke help)"}, {"pskclean", CmdPskClean, 1, "Attempt to clean psk wave"}, {"pskdetectclock",CmdDetectNRZpskClockRate, 1, "Detect ASK, PSK, or NRZ clock rate"}, - {"pskindalademod",CmdIndalaDecode, 1, "[clock] [invert<0|1>] -- Attempt to demodulate psk indala tags and output ID binary & hex (args optional)"}, - {"psknrzrawdemod",CmdpskNRZrawDemod, 1, "[clock] [invert<0|1>] -- Attempt to demodulate psk or nrz tags and output binary (args optional)"}, + {"pskindalademod",CmdIndalaDecode, 1, "[clock] [invert<0|1>] -- Attempt to demodulate psk1 indala tags and output ID binary & hex (args optional)"}, + {"psk1nrzrawdemod",CmdpskNRZrawDemod, 1, "[clock] [invert<0|1>] -- Attempt to demodulate psk1 or nrz tags and output binary (args optional)"}, + {"psk2rawdemod", CmdPSK2rawDemod, 1, "[clock] [invert<0|1>] -- Attempt to demodulate psk2 tags and output binary (args optional)"}, {"samples", CmdSamples, 0, "[512 - 40000] -- Get raw samples for graph window"}, {"save", CmdSave, 1, " -- Save trace (from graph window)"}, {"scale", CmdScale, 1, " -- Set cursor display scale"}, @@ -1938,7 +2137,8 @@ static command_t CommandTable[] = {"threshold", CmdThreshold, 1, " -- Maximize/minimize every value in the graph window depending on threshold"}, {"dirthreshold", CmdDirectionalThreshold, 1, " -- Max rising higher up-thres/ Min falling lower down-thres, keep rest as prev."}, {"tune", CmdTuneSamples, 0, "Get hw tune samples for graph window"}, - {"zerocrossings", CmdZerocrossings, 1, "Count time between zero-crossings"}, + {"undec", CmdUndec, 1, "Un-decimate samples by 2"}, + {"zerocrossings", CmdZerocrossings, 1, "Count time between zero-crossings"}, {NULL, NULL, 0, NULL} };