X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/bf8328e92802fd5f2b63a038ac0b3fc0eeac8581..c07b79fcbf72f530cbff5bc1e49c12bff311f50f:/client/cmddata.c diff --git a/client/cmddata.c b/client/cmddata.c index 38917a33..4b5cb040 100644 --- a/client/cmddata.c +++ b/client/cmddata.c @@ -21,9 +21,55 @@ #include "cmdmain.h" #include "cmddata.h" #include "lfdemod.h" - +uint8_t DemodBuffer[MAX_DEMOD_BUF_LEN]; +int DemodBufferLen; static int CmdHelp(const char *Cmd); +//set the demod buffer with given array of binary (one bit per byte) +//by marshmellow +void setDemodBuf(uint8_t *buff,int size) +{ + int i=0; + for (; i < size; ++i){ + DemodBuffer[i]=buff[i]; + } + DemodBufferLen=size; + return; +} + +//by marshmellow +void printDemodBuff() +{ + uint32_t i = 0; + int bitLen = DemodBufferLen; + if (bitLen<16) { + PrintAndLog("no bits found in demod buffer"); + return; + } + if (bitLen>512) bitLen=512; //max output to 512 bits if we have more - should be plenty + 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], + DemodBuffer[i+1], + DemodBuffer[i+2], + DemodBuffer[i+3], + DemodBuffer[i+4], + DemodBuffer[i+5], + DemodBuffer[i+6], + DemodBuffer[i+7], + DemodBuffer[i+8], + DemodBuffer[i+9], + DemodBuffer[i+10], + DemodBuffer[i+11], + DemodBuffer[i+12], + DemodBuffer[i+13], + DemodBuffer[i+14], + DemodBuffer[i+15]); + } + return; +} + + int CmdAmp(const char *Cmd) { int i, rising, falling; @@ -185,10 +231,10 @@ void printEM410x(uint64_t id) int CmdEm410xDecode(const char *Cmd) { uint64_t id=0; - uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; - uint32_t i=0; - i=getFromGraphBuf(BitStream); - id = Em410xDecode(BitStream,i); + // uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; + // uint32_t i=0; + // i=getFromGraphBuf(BitStream); + id = Em410xDecode(DemodBuffer,DemodBufferLen); printEM410x(id); if (id>0) return 1; return 0; @@ -209,15 +255,15 @@ int Cmdaskmandemod(const char *Cmd) PrintAndLog("Invalid argument: %s", Cmd); return 0; } - uint32_t BitLen = getFromGraphBuf(BitStream); + + int BitLen = getFromGraphBuf(BitStream); // PrintAndLog("DEBUG: Bitlen from grphbuff: %d",BitLen); int errCnt=0; errCnt = askmandemod(BitStream, &BitLen,&clk,&invert); - if (errCnt<0){ //if fatal error (or -1) + if (errCnt<0||BitLen<16){ //if fatal error (or -1) // PrintAndLog("no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt,invert,BitLen,clk); return 0; } - if (BitLen<16) return 0; PrintAndLog("\nUsing Clock: %d - Invert: %d - Bits Found: %d",clk,invert,BitLen); //output @@ -226,12 +272,12 @@ int Cmdaskmandemod(const char *Cmd) } PrintAndLog("ASK/Manchester decoded bitstream:"); // Now output the bitstream to the scrollback by line of 16 bits - printBitStream(BitStream,BitLen); + setDemodBuf(BitStream,BitLen); + printDemodBuff(); uint64_t lo =0; lo = Em410xDecode(BitStream,BitLen); if (lo>0){ //set GraphBuffer for clone or sim command - setGraphBuf(BitStream,BitLen); PrintAndLog("EM410x pattern found: "); printEM410x(lo); return 1; @@ -250,10 +296,10 @@ int Cmdmandecoderaw(const char *Cmd) int bitnum=0; uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; int high=0,low=0; - for (;ihigh) high=GraphBuffer[i]; - else if(GraphBuffer[i]high) high=DemodBuffer[i]; + else if(DemodBuffer[i]1 || low <0 ){ PrintAndLog("Error: please raw demod the wave first then mancheseter raw decode"); @@ -268,15 +314,9 @@ int Cmdmandecoderaw(const char *Cmd) PrintAndLog("Manchester Decoded - # errors:%d - data:",errCnt); printBitStream(BitStream,bitnum); if (errCnt==0){ - //put back in graphbuffer - ClearGraph(0); - for (i=0; i0) setDemodBuf(BitStream,bitnum); printEM410x(id); } return 1; @@ -301,10 +341,10 @@ int CmdBiphaseDecodeRaw(const char *Cmd) sscanf(Cmd, "%i", &offset); uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; //get graphbuffer & high and low - for (;ihigh)high=GraphBuffer[i]; - else if(GraphBuffer[i]high)high=DemodBuffer[i]; + else if(DemodBuffer[i]1 || low <0){ PrintAndLog("Error: please raw demod the wave first then decode"); @@ -329,7 +369,6 @@ int CmdBiphaseDecodeRaw(const char *Cmd) //prints binary found and saves in graphbuffer for further commands int Cmdaskrawdemod(const char *Cmd) { - int invert=0; int clk=0; uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; @@ -340,23 +379,21 @@ int Cmdaskrawdemod(const char *Cmd) } int BitLen = getFromGraphBuf(BitStream); int errCnt=0; - errCnt = askrawdemod(BitStream, &BitLen, &clk, &invert); - if (errCnt==-1){ //throw away static - allow 1 and -1 (in case of threshold command first) + errCnt = askrawdemod(BitStream, &BitLen,&clk,&invert); + if (errCnt==-1||BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first) PrintAndLog("no data found"); return 0; } - if (BitLen<16) return 0; PrintAndLog("Using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen); //PrintAndLog("Data start pos:%d, lastBit:%d, stop pos:%d, numBits:%d",iii,lastBit,i,bitnum); - //move BitStream back to GraphBuffer - setGraphBuf(BitStream, BitLen); - + //move BitStream back to DemodBuffer + setDemodBuf(BitStream,BitLen); + + //output if (errCnt>0){ PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt); } - PrintAndLog("ASK demoded bitstream:"); - // Now output the bitstream to the scrollback by line of 16 bits printBitStream(BitStream,BitLen); @@ -472,6 +509,10 @@ 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(); @@ -501,6 +542,8 @@ int CmdDec(const char *Cmd) int CmdDetectClockRate(const char *Cmd) { GetClock("",0,0); + //int clock = DetectASKClock(0); + //PrintAndLog("Auto-detected clock rate: %d", clock); return 0; } @@ -527,18 +570,12 @@ int CmdFSKrawdemod(const char *Cmd) } else if(rfLen==0) rfLen=50; } PrintAndLog("Args invert: %d - Clock:%d - fchigh:%d - fclow: %d",invert,rfLen,fchigh, fclow); - uint32_t i=0; uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; uint32_t BitLen = getFromGraphBuf(BitStream); int size = fskdemod(BitStream,BitLen,(uint8_t)rfLen,(uint8_t)invert,(uint8_t)fchigh,(uint8_t)fclow); if (size>0){ PrintAndLog("FSK decoded bitstream:"); - ClearGraph(0); - for (i=0;i (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 @@ -567,9 +604,9 @@ int CmdFSKdemodHID(const char *Cmd) } if (hi2==0 && hi==0 && lo==0) return 0; if (hi2 != 0){ //extra large HID tags - PrintAndLog("TAG ID: %x%08x%08x (%d)", + PrintAndLog("HID Prox TAG ID: %x%08x%08x (%d)", (unsigned int) hi2, (unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF); - setGraphBuf(BitStream,BitLen); + setDemodBuf(BitStream,BitLen); return 1; } else { //standard HID tags <38 bits @@ -614,10 +651,10 @@ int CmdFSKdemodHID(const char *Cmd) fc = ((hi&0xF)<<12)|(lo>>20); } } - PrintAndLog("TAG ID: %x%08x (%d) - Format Len: %dbit - FC: %d - Card: %d", + PrintAndLog("HID Prox TAG ID: %x%08x (%d) - Format Len: %dbit - FC: %d - Card: %d", (unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF, (unsigned int) fmtLen, (unsigned int) fc, (unsigned int) cardnum); - setGraphBuf(BitStream,BitLen); + setDemodBuf(BitStream,BitLen); return 1; } return 0; @@ -671,9 +708,12 @@ int CmdFSKdemodIO(const char *Cmd) uint8_t version = bytebits_to_byte(BitStream+idx+27,8); //14,4 uint8_t facilitycode = bytebits_to_byte(BitStream+idx+18,8) ; uint16_t number = (bytebits_to_byte(BitStream+idx+36,8)<<8)|(bytebits_to_byte(BitStream+idx+45,8)); //36,9 - - PrintAndLog("XSF(%02d)%02x:%05d (%08x%08x)",version,facilitycode,number,code,code2); - setGraphBuf(BitStream,BitLen); + PrintAndLog("IO Prox XSF(%02d)%02x:%05d (%08x%08x)",version,facilitycode,number,code,code2); + int i; + for (i=0;i<64;++i) + DemodBuffer[i]=BitStream[idx++]; + + DemodBufferLen=64; return 1; } int CmdFSKdemod(const char *Cmd) //old CmdFSKdemod needs updating @@ -762,7 +802,8 @@ 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] = {0x00}; + uint8_t bits[46]; + bits[sizeof(bits)-1] = '\0'; // find bit pairs and manchester decode them for (i = 0; i < arraylen(bits) - 1; ++i) { @@ -794,6 +835,160 @@ int CmdFSKdemod(const char *Cmd) //old CmdFSKdemod needs updating return 0; } +int CmdDetectNRZpskClockRate(const char *Cmd) +{ + GetNRZpskClock("",0,0); + return 0; +} + +int PSKnrzDemod(const char *Cmd){ + int invert=0; + int clk=0; + sscanf(Cmd, "%i %i", &clk, &invert); + if (invert != 0 && invert != 1) { + PrintAndLog("Invalid argument: %s", Cmd); + return -1; + } + uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; + int BitLen = getFromGraphBuf(BitStream); + int errCnt=0; + errCnt = pskNRZrawDemod(BitStream, &BitLen,&clk,&invert); + if (errCnt<0|| BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first) + //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); + + //prime demod buffer for output + setDemodBuf(BitStream,BitLen); + return errCnt; +} +// Indala 26 bit decode +// by marshmellow +// optional arguments - same as CmdpskNRZrawDemod (clock & invert) +int CmdIndalaDecode(const char *Cmd) +{ + + int ans=PSKnrzDemod(Cmd); + if (ans < 0){ + PrintAndLog("Error1: %d",ans); + return 0; + } + uint8_t invert=0; + ans = indala26decode(DemodBuffer, &DemodBufferLen, &invert); + if (ans < 1) { + PrintAndLog("Error2: %d",ans); + return -1; + } + char showbits[251]; + if(invert==1) PrintAndLog("Had to invert bits"); + //convert UID to HEX + uint32_t uid1, uid2, uid3, uid4, uid5, uid6, uid7; + int idx; + uid1=0; + uid2=0; + PrintAndLog("BitLen: %d",DemodBufferLen); + if (DemodBufferLen==64){ + for( idx=0; idx<64; idx++) { + uid1=(uid1<<1)|(uid2>>31); + if (DemodBuffer[idx] == 0) { + uid2=(uid2<<1)|0; + showbits[idx]='0'; + } else { + uid2=(uid2<<1)|1; + showbits[idx]='1'; + } + } + showbits[idx]='\0'; + PrintAndLog("Indala UID=%s (%x%08x)", showbits, uid1, uid2); + } + else { + uid3=0; + uid4=0; + uid5=0; + uid6=0; + uid7=0; + for( idx=0; idx>31); + uid2=(uid2<<1)|(uid3>>31); + uid3=(uid3<<1)|(uid4>>31); + uid4=(uid4<<1)|(uid5>>31); + uid5=(uid5<<1)|(uid6>>31); + uid6=(uid6<<1)|(uid7>>31); + if (DemodBuffer[idx] == 0) { + uid7=(uid7<<1)|0; + showbits[idx]='0'; + } + else { + uid7=(uid7<<1)|1; + showbits[idx]='1'; + } + } + showbits[idx]='\0'; + PrintAndLog("Indala UID=%s (%x%08x%08x%08x%08x%08x%08x)", showbits, uid1, uid2, uid3, uid4, uid5, uid6, uid7); + } + return 1; +} + +/* +//by marshmellow (attempt to get rid of high immediately after a low) +void pskCleanWave2(uint8_t *bitStream, int bitLen) +{ + int i; + int low=128; + int gap = 4; + // int loopMax = 2048; + int newLow=0; + + for (i=0; i0){ + 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 + printDemodBuff(); + + return 1; +} + + + int CmdGrid(const char *Cmd) { sscanf(Cmd, "%i %i", &PlotGridX, &PlotGridY); @@ -869,21 +1064,22 @@ int CmdHpf(const char *Cmd) int CmdSamples(const char *Cmd) { - uint8_t got[40000] = {0x00}; - - int n = strtol(Cmd, NULL, 0); - if (n == 0) - n = 20000; - - if (n > sizeof(got)) - n = sizeof(got); + int cnt = 0; + int n; + uint8_t got[40000]; + + n = strtol(Cmd, NULL, 0); + if (n == 0) n = 6000; + if (n > sizeof(got)) n = sizeof(got); - PrintAndLog("Reading %d samples from device memory\n", n); + PrintAndLog("Reading %d samples\n", n); GetFromBigBuf(got,n,0); WaitForResponse(CMD_ACK,NULL); - for (int j = 0; j < n; ++j) { - GraphBuffer[j] = ((int)got[j]) - 128; + for (int j = 0; j < n; j++) { + GraphBuffer[cnt++] = ((int)got[j]) - 128; } + + PrintAndLog("Done!\n"); GraphTraceLen = n; RepaintGraphWindow(); return 0; @@ -1203,8 +1399,9 @@ int CmdNorm(const char *Cmd) if (max != min) { for (i = 0; i < GraphTraceLen; ++i) { - GraphBuffer[i] = (GraphBuffer[i] - ((max + min) / 2)) * 1000 / - (max - min); + GraphBuffer[i] = (GraphBuffer[i] - ((max + min) / 2)) * 256 / + (max - min); + //marshmelow: adjusted *1000 to *256 to make +/- 128 so demod commands still work } } RepaintGraphWindow(); @@ -1327,15 +1524,15 @@ static command_t CommandTable[] = {"help", CmdHelp, 1, "This help"}, {"amp", CmdAmp, 1, "Amplify peaks"}, {"askdemod", Cmdaskdemod, 1, "<0 or 1> -- Attempt to demodulate simple ASK tags"}, - {"askmandemod", Cmdaskmandemod, 1, "[clock] [invert <0|1>] -- Attempt to demodulate ASK/Manchester tags and output binary"}, - {"askrawdemod", Cmdaskrawdemod, 1, "[clock] [invert <0|1>] -- Attempt to demodulate ASK tags and output binary"}, + {"askmandemod", Cmdaskmandemod, 1, "[clock] [invert<0 or 1>] -- Attempt to demodulate ASK/Manchester tags and output binary (args optional[clock will try Auto-detect])"}, + {"askrawdemod", Cmdaskrawdemod, 1, "[clock] [invert<0 or 1>] -- Attempt to demodulate ASK tags and output binary (args optional[clock will try Auto-detect])"}, {"autocorr", CmdAutoCorr, 1, " -- Autocorrelation over window"}, {"biphaserawdecode",CmdBiphaseDecodeRaw,1,"[offset] Biphase decode binary stream already in graph buffer (offset = bit to start decode from)"}, {"bitsamples", CmdBitsamples, 0, "Get raw samples as bitstring"}, {"bitstream", CmdBitstream, 1, "[clock rate] -- Convert waveform into a bitstream"}, {"buffclear", CmdBuffClear, 1, "Clear sample buffer and graph window"}, {"dec", CmdDec, 1, "Decimate samples"}, - {"detectaskclock",CmdDetectClockRate, 1, "Detect ASK clock rate"}, + {"detectclock", CmdDetectClockRate, 1, "Detect ASK, PSK, or NRZ clock rate"}, {"fskdemod", CmdFSKdemod, 1, "Demodulate graph window as a HID FSK"}, {"fskhiddemod", CmdFSKdemodHID, 1, "Demodulate graph window as a HID FSK using raw"}, {"fskiodemod", CmdFSKdemodIO, 1, "Demodulate graph window as an IO Prox FSK using raw"}, @@ -1350,15 +1547,19 @@ static command_t CommandTable[] = {"mandemod", CmdManchesterDemod, 1, "[i] [clock rate] -- Manchester demodulate binary stream (option 'i' to invert output)"}, {"manrawdecode", Cmdmandecoderaw, 1, "Manchester decode binary stream already in graph buffer"}, {"manmod", CmdManchesterMod, 1, "[clock rate] -- Manchester modulate a binary stream"}, - {"norm", CmdNorm, 1, "Normalize max/min to +/-500"}, + {"norm", CmdNorm, 1, "Normalize max/min to +/-128"}, {"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 or 1>] -- Attempt to demodulate psk indala tags and output ID binary & hex (args optional[clock will try Auto-detect])"}, + {"psknrzrawdemod",CmdpskNRZrawDemod, 1, "[clock] [invert<0 or 1>] -- Attempt to demodulate psk or nrz tags and output binary (args optional[clock will try Auto-detect])"}, {"samples", CmdSamples, 0, "[512 - 40000] -- Get raw samples for graph window"}, - {"tune", CmdTuneSamples, 0, "Get hw tune samples for graph window"}, {"save", CmdSave, 1, " -- Save trace (from graph window)"}, {"scale", CmdScale, 1, " -- Set cursor display scale"}, {"threshold", CmdThreshold, 1, " -- Maximize/minimize every value in the graph window depending on threshold"}, - {"zerocrossings", CmdZerocrossings, 1, "Count time between zero-crossings"}, {"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"}, {NULL, NULL, 0, NULL} };