X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/66707a3b3c59b7ac53231dda726b27389a9bfb70..ae8e8a437237a059e798f443eb6a8f695754051e:/client/cmddata.c diff --git a/client/cmddata.c b/client/cmddata.c index 32668d98..d8a0fcf6 100644 --- a/client/cmddata.c +++ b/client/cmddata.c @@ -11,7 +11,6 @@ #include #include #include -//#include #include #include "proxmark3.h" #include "data.h" @@ -125,14 +124,16 @@ int Cmdaskdemod(const char *Cmd) return 0; } -void printBitStream(uint8_t BitStream[], uint32_t bitLen){ +//by marshmellow +void printBitStream(uint8_t BitStream[], uint32_t bitLen) +{ uint32_t i = 0; if (bitLen<16) { PrintAndLog("Too few bits found: %d",bitLen); return; } if (bitLen>512) bitLen=512; - for (i = 0; i < (bitLen-16); i+=16) { + 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], BitStream[i+1], @@ -153,6 +154,7 @@ void printBitStream(uint8_t BitStream[], uint32_t bitLen){ } return; } +//by marshmellow void printEM410x(uint64_t id) { if (id !=0){ @@ -179,26 +181,19 @@ void printEM410x(uint64_t id) return; } +//by marshmellow int CmdEm410xDecode(const char *Cmd) { uint64_t id=0; uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; uint32_t i=0; - for (i=0;i0) return 1; return 0; } -int getFromGraphBuf(uint8_t *buff) -{ - uint32_t i; - for (i=0;i0){ PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt); } @@ -242,17 +229,19 @@ int Cmdaskmandemod(const char *Cmd) printBitStream(BitStream,BitLen); uint64_t lo =0; lo = Em410xDecode(BitStream,BitLen); - printEM410x(lo); - + if (lo>0){ + //set GraphBuffer for clone or sim command + setGraphBuf(BitStream,BitLen); + PrintAndLog("EM410x pattern found: "); + printEM410x(lo); + return 1; + } + //if (BitLen>16) return 1; return 0; } //by marshmellow -//biphase demod = 10 (or 01)=1 / 00 (or 11)=0 - - -//by marshmellow -//manchester demod +//manchester decode //stricktly take 10 and 01 and convert to 0 and 1 int Cmdmandecoderaw(const char *Cmd) { @@ -271,7 +260,11 @@ int Cmdmandecoderaw(const char *Cmd) return 0; } bitnum=i; - errCnt=manrawdemod(BitStream,&bitnum); + errCnt=manrawdecode(BitStream,&bitnum); + if (errCnt>=20){ + PrintAndLog("Too many errors: %d",errCnt); + return 0; + } PrintAndLog("Manchester Decoded - # errors:%d - data:",errCnt); printBitStream(BitStream,bitnum); if (errCnt==0){ @@ -286,9 +279,50 @@ int Cmdmandecoderaw(const char *Cmd) id = Em410xDecode(BitStream,i); printEM410x(id); } - return 0; + return 1; } +//by marshmellow +//biphase decode +//take 01 or 10 = 0 and 11 or 00 = 1 +//takes 1 argument "offset" default = 0 if 1 it will shift the decode by one bit +// since it is not like manchester and doesn't have an incorrect bit pattern we +// cannot determine if our decode is correct or if it should be shifted by one bit +// the argument offset allows us to manually shift if the output is incorrect +// (better would be to demod and decode at the same time so we can distinguish large +// width waves vs small width waves to help the decode positioning) or askbiphdemod +int CmdBiphaseDecodeRaw(const char *Cmd) +{ + int i = 0; + int errCnt=0; + int bitnum=0; + int offset=0; + int high=0, low=0; + 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]1 || low <0){ + PrintAndLog("Error: please raw demod the wave first then decode"); + return 0; + } + bitnum=i; + errCnt=BiphaseRawDecode(BitStream,&bitnum, offset); + if (errCnt>=20){ + PrintAndLog("Too many errors attempting to decode: %d",errCnt); + return 0; + } + PrintAndLog("Biphase Decoded using offset: %d - # errors:%d - data:",offset,errCnt); + printBitStream(BitStream,bitnum); + PrintAndLog("\nif bitstream does not look right try offset=1"); + return 1; +} + + //by marshmellow //takes 2 arguments - clock and invert both as integers //attempts to demodulate ask only @@ -311,7 +345,8 @@ int Cmdaskrawdemod(const char *Cmd) PrintAndLog("no data found"); return 0; } - PrintAndLog("Using Clock: %d and invert=%d",clk,invert); + 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 @@ -330,7 +365,7 @@ int Cmdaskrawdemod(const char *Cmd) // Now output the bitstream to the scrollback by line of 16 bits printBitStream(BitStream,BitLen); - return 0; + return 1; } int CmdAutoCorr(const char *Cmd) @@ -471,52 +506,57 @@ int CmdDec(const char *Cmd) } /* Print our clock rate */ +// uses data from graphbuffer int CmdDetectClockRate(const char *Cmd) { - int clock = DetectClock(0); - PrintAndLog("Auto-detected clock rate: %d", clock); + GetClock("",0,0); + //int clock = DetectASKClock(0); + //PrintAndLog("Auto-detected clock rate: %d", clock); return 0; } //by marshmellow //fsk raw demod and print binary -//takes 2 arguments - Clock and invert -//defaults: clock = 50, invert=0 +//takes 4 arguments - Clock, invert, rchigh, rclow +//defaults: clock = 50, invert=0, rchigh=10, rclow=8 (RF/10 RF/8 (fsk2a)) int CmdFSKrawdemod(const char *Cmd) { //raw fsk demod no manchester decoding no start bit finding just get binary from wave //set defaults - uint8_t rfLen = 50; - uint8_t invert=0; + int rfLen = 50; + int invert=0; + int fchigh=10; + int fclow=8; //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) { - rfLen=param_get8(Cmd, 0); //if rfLen option only is used + //rfLen=param_get8(Cmd, 0); //if rfLen option only is used if (rfLen==1){ invert=1; //if invert option only is used rfLen = 50; } else if(rfLen==0) rfLen=50; } - if (strlen(Cmd)>2) { - rfLen=param_get8(Cmd, 0); //if both options are used - invert=param_get8(Cmd,1); - } - PrintAndLog("Args invert: %d \nClock:%d",invert,rfLen); + 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,rfLen,invert); - - PrintAndLog("FSK decoded bitstream:"); - ClearGraph(0); - for (i=0;i0){ + 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 + printBitStream(BitStream,size); + } else{ + PrintAndLog("no FSK data found"); } - GraphTraceLen=size; - RepaintGraphWindow(); - - // Now output the bitstream to the scrollback by line of 16 bits - if(size > (7*32)+2) size = (7*32)+2; //only output a max of 7 blocks of 32 bits most tags will have full bit stream inside that sample size - printBitStream(BitStream,size); return 0; } @@ -536,13 +576,16 @@ int CmdFSKdemodHID(const char *Cmd) PrintAndLog("Error demoding fsk"); return 0; } + if (hi2==0 && hi==0 && lo==0) return 0; if (hi2 != 0){ //extra large HID tags PrintAndLog("TAG ID: %x%08x%08x (%d)", (unsigned int) hi2, (unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF); + setGraphBuf(BitStream,BitLen); + return 1; } else { //standard HID tags <38 bits //Dbprintf("TAG ID: %x%08x (%d)",(unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF); //old print cmd - uint8_t bitlen = 0; + uint8_t fmtLen = 0; uint32_t fc = 0; uint32_t cardnum = 0; if (((hi>>5)&1)==1){//if bit 38 is set then < 37 bit format is used @@ -553,39 +596,40 @@ int CmdFSKdemodHID(const char *Cmd) lo2=lo2>>1; idx3++; } - bitlen =idx3+19; + fmtLen =idx3+19; fc =0; cardnum=0; - if(bitlen==26){ + if(fmtLen==26){ cardnum = (lo>>1)&0xFFFF; fc = (lo>>17)&0xFF; } - if(bitlen==37){ + if(fmtLen==37){ cardnum = (lo>>1)&0x7FFFF; fc = ((hi&0xF)<<12)|(lo>>20); } - if(bitlen==34){ + if(fmtLen==34){ cardnum = (lo>>1)&0xFFFF; fc= ((hi&1)<<15)|(lo>>17); } - if(bitlen==35){ + if(fmtLen==35){ cardnum = (lo>>1)&0xFFFFF; fc = ((hi&1)<<11)|(lo>>21); } } else { //if bit 38 is not set then 37 bit format is used - bitlen= 37; + fmtLen= 37; fc =0; cardnum=0; - if(bitlen==37){ + if(fmtLen==37){ cardnum = (lo>>1)&0x7FFFF; fc = ((hi&0xF)<<12)|(lo>>20); } } PrintAndLog("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) bitlen, (unsigned int) fc, (unsigned int) cardnum); - return 0; + (unsigned int) fmtLen, (unsigned int) fc, (unsigned int) cardnum); + setGraphBuf(BitStream,BitLen); + return 1; } return 0; } @@ -598,19 +642,22 @@ 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; - //test samples are not just noise - if (GraphTraceLen < 64) return 0; + //something in graphbuffer + if (GraphTraceLen < 65) return 0; uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; uint32_t BitLen = getFromGraphBuf(BitStream); //get binary from fsk wave + // PrintAndLog("DEBUG: got buff"); idx = IOdemodFSK(BitStream,BitLen); if (idx<0){ - PrintAndLog("Error demoding fsk"); + //PrintAndLog("Error demoding fsk"); return 0; } + // PrintAndLog("DEBUG: Got IOdemodFSK"); if (idx==0){ - PrintAndLog("IO Prox Data not found - FSK Data:"); - printBitStream(BitStream,92); + //PrintAndLog("IO Prox Data not found - FSK Data:"); + //if (BitLen > 92) printBitStream(BitStream,92); + return 0; } //Index map //0 10 20 30 40 50 60 @@ -621,23 +668,24 @@ int CmdFSKdemodIO(const char *Cmd) // //XSF(version)facility:codeone+codetwo (raw) //Handle the data - + if (idx+64>BitLen) return 0; PrintAndLog("%d%d%d%d%d%d%d%d %d",BitStream[idx], BitStream[idx+1], BitStream[idx+2], BitStream[idx+3], BitStream[idx+4], BitStream[idx+5], BitStream[idx+6], BitStream[idx+7], BitStream[idx+8]); PrintAndLog("%d%d%d%d%d%d%d%d %d",BitStream[idx+9], BitStream[idx+10], BitStream[idx+11],BitStream[idx+12],BitStream[idx+13],BitStream[idx+14],BitStream[idx+15],BitStream[idx+16],BitStream[idx+17]); - PrintAndLog("%d%d%d%d%d%d%d%d %d",BitStream[idx+18], BitStream[idx+19], BitStream[idx+20],BitStream[idx+21],BitStream[idx+22],BitStream[idx+23],BitStream[idx+24],BitStream[idx+25],BitStream[idx+26]); - PrintAndLog("%d%d%d%d%d%d%d%d %d",BitStream[idx+27], BitStream[idx+28], BitStream[idx+29],BitStream[idx+30],BitStream[idx+31],BitStream[idx+32],BitStream[idx+33],BitStream[idx+34],BitStream[idx+35]); - PrintAndLog("%d%d%d%d%d%d%d%d %d",BitStream[idx+36], BitStream[idx+37], BitStream[idx+38],BitStream[idx+39],BitStream[idx+40],BitStream[idx+41],BitStream[idx+42],BitStream[idx+43],BitStream[idx+44]); - PrintAndLog("%d%d%d%d%d%d%d%d %d",BitStream[idx+45], BitStream[idx+46], BitStream[idx+47],BitStream[idx+48],BitStream[idx+49],BitStream[idx+50],BitStream[idx+51],BitStream[idx+52],BitStream[idx+53]); - PrintAndLog("%d%d%d%d%d%d%d%d %d%d",BitStream[idx+54],BitStream[idx+55],BitStream[idx+56],BitStream[idx+57],BitStream[idx+58],BitStream[idx+59],BitStream[idx+60],BitStream[idx+61],BitStream[idx+62],BitStream[idx+63]); + PrintAndLog("%d%d%d%d%d%d%d%d %d facility",BitStream[idx+18], BitStream[idx+19], BitStream[idx+20],BitStream[idx+21],BitStream[idx+22],BitStream[idx+23],BitStream[idx+24],BitStream[idx+25],BitStream[idx+26]); + PrintAndLog("%d%d%d%d%d%d%d%d %d version",BitStream[idx+27], BitStream[idx+28], BitStream[idx+29],BitStream[idx+30],BitStream[idx+31],BitStream[idx+32],BitStream[idx+33],BitStream[idx+34],BitStream[idx+35]); + PrintAndLog("%d%d%d%d%d%d%d%d %d code1",BitStream[idx+36], BitStream[idx+37], BitStream[idx+38],BitStream[idx+39],BitStream[idx+40],BitStream[idx+41],BitStream[idx+42],BitStream[idx+43],BitStream[idx+44]); + PrintAndLog("%d%d%d%d%d%d%d%d %d code2",BitStream[idx+45], BitStream[idx+46], BitStream[idx+47],BitStream[idx+48],BitStream[idx+49],BitStream[idx+50],BitStream[idx+51],BitStream[idx+52],BitStream[idx+53]); + PrintAndLog("%d%d%d%d%d%d%d%d %d%d checksum",BitStream[idx+54],BitStream[idx+55],BitStream[idx+56],BitStream[idx+57],BitStream[idx+58],BitStream[idx+59],BitStream[idx+60],BitStream[idx+61],BitStream[idx+62],BitStream[idx+63]); uint32_t code = bytebits_to_byte(BitStream+idx,32); uint32_t code2 = bytebits_to_byte(BitStream+idx+32,32); - short version = bytebits_to_byte(BitStream+idx+27,8); //14,4 - uint8_t facilitycode = bytebits_to_byte(BitStream+idx+19,8) ; + 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:%d (%08x%08x)",version,facilitycode,number,code,code2); - return 0; + PrintAndLog("XSF(%02d)%02x:%05d (%08x%08x)",version,facilitycode,number,code,code2); + setGraphBuf(BitStream,BitLen); + return 1; } int CmdFSKdemod(const char *Cmd) //old CmdFSKdemod needs updating { @@ -905,6 +953,15 @@ int CmdLtrim(const char *Cmd) RepaintGraphWindow(); return 0; } +int CmdRtrim(const char *Cmd) +{ + int ds = atoi(Cmd); + + GraphTraceLen = ds; + + RepaintGraphWindow(); + return 0; +} /* * Manchester demodulate a bitstream. The bitstream needs to be already in @@ -1286,21 +1343,23 @@ static command_t CommandTable[] = {"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"}, - {"detectclock", CmdDetectClockRate, 1, "Detect clock rate"}, + {"detectaskclock",CmdDetectClockRate, 1, "Detect ASK 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"}, - {"fskrawdemod", CmdFSKrawdemod, 1, "[clock rate] [invert] Demodulate graph window from FSK to binary (clock = 64 or 50)(invert = 1 or 0)"}, + {"fskrawdemod", CmdFSKrawdemod, 1, "[clock rate] [invert] [rchigh] [rclow] Demodulate graph window from FSK to binary (clock = 50)(invert = 1 or 0)(rchigh = 10)(rclow=8)"}, {"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"}, {"hpf", CmdHpf, 1, "Remove DC offset from trace"}, {"load", CmdLoad, 1, " -- Load trace (to graph window"}, {"ltrim", CmdLtrim, 1, " -- Trim samples from left of trace"}, + {"rtrim", CmdRtrim, 1, " -- Trim samples from right of trace"}, {"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"},