X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/55c7e3520fd6aa4a7417ddfd0fcbd00b2f2c38d6..63e420b572aec078c49d2ab446ddb4eb30cb0e70:/client/cmddata.c?ds=sidebyside diff --git a/client/cmddata.c b/client/cmddata.c index a88fa4e1..8c91f0e1 100644 --- a/client/cmddata.c +++ b/client/cmddata.c @@ -22,21 +22,30 @@ #include "cmddata.h" #include "lfdemod.h" uint8_t DemodBuffer[MAX_DEMOD_BUF_LEN]; +uint8_t g_debugMode; 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) +void setDemodBuf(uint8_t *buff, size_t size, size_t startIdx) { - int i=0; - for (; i < size; ++i){ - DemodBuffer[i]=buff[i]; + size_t i = 0; + for (; i < size; i++){ + DemodBuffer[i]=buff[startIdx++]; } DemodBufferLen=size; return; } +int CmdSetDebugMode(const char *Cmd) +{ + int demod=0; + sscanf(Cmd, "%i", &demod); + g_debugMode=(uint8_t)demod; + return 1; +} + //by marshmellow void printDemodBuff() { @@ -206,7 +215,7 @@ void printEM410x(uint64_t id) { if (id !=0){ uint64_t iii=1; - uint64_t id2lo=0; //id2hi=0, + uint64_t id2lo=0; uint32_t ii=0; uint32_t i=0; for (ii=5; ii>0;ii--){ @@ -216,7 +225,7 @@ void printEM410x(uint64_t id) } //output em id PrintAndLog("EM TAG ID : %010llx", id); - PrintAndLog("Unique TAG ID: %010llx", id2lo); //id2hi, + PrintAndLog("Unique TAG ID: %010llx", id2lo); PrintAndLog("DEZ 8 : %08lld",id & 0xFFFFFF); PrintAndLog("DEZ 10 : %010lld",id & 0xFFFFFF); PrintAndLog("DEZ 5.5 : %05lld.%05lld",(id>>16LL) & 0xFFFF,(id & 0xFFFF)); @@ -233,12 +242,17 @@ 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(DemodBuffer,DemodBufferLen); - printEM410x(id); - if (id>0) return 1; + size_t size = DemodBufferLen, idx=0; + id = Em410xDecode(DemodBuffer, &size, &idx); + if (id>0){ + setDemodBuf(DemodBuffer, size, idx); + if (g_debugMode){ + PrintAndLog("DEBUG: Printing demod buffer:"); + printDemodBuff(); + } + printEM410x(id); + return 1; + } return 0; } @@ -249,7 +263,7 @@ int CmdEm410xDecode(const char *Cmd) //prints binary found and saves in graphbuffer for further commands int Cmdaskmandemod(const char *Cmd) { - int invert=0; + int invert=0; int clk=0; uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; sscanf(Cmd, "%i %i", &clk, &invert); @@ -259,11 +273,11 @@ int Cmdaskmandemod(const char *Cmd) } size_t BitLen = getFromGraphBuf(BitStream); - // PrintAndLog("DEBUG: Bitlen from grphbuff: %d",BitLen); + if (g_debugMode==1) PrintAndLog("DEBUG: Bitlen from grphbuff: %d",BitLen); int errCnt=0; errCnt = askmandemod(BitStream, &BitLen,&clk,&invert); 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); + if (g_debugMode==1) PrintAndLog("no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt,invert,BitLen,clk); return 0; } PrintAndLog("\nUsing Clock: %d - Invert: %d - Bits Found: %d",clk,invert,BitLen); @@ -274,17 +288,22 @@ int Cmdaskmandemod(const char *Cmd) } PrintAndLog("ASK/Manchester decoded bitstream:"); // Now output the bitstream to the scrollback by line of 16 bits - setDemodBuf(BitStream,BitLen); + setDemodBuf(BitStream,BitLen,0); printDemodBuff(); uint64_t lo =0; - lo = Em410xDecode(BitStream,BitLen); + size_t idx=0; + lo = Em410xDecode(BitStream, &BitLen, &idx); if (lo>0){ //set GraphBuffer for clone or sim command + setDemodBuf(BitStream, BitLen, idx); + if (g_debugMode){ + PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, BitLen); + printDemodBuff(); + } PrintAndLog("EM410x pattern found: "); printEM410x(lo); return 1; } - //if (BitLen>16) return 1; return 0; } @@ -317,9 +336,14 @@ int Cmdmandecoderaw(const char *Cmd) printBitStream(BitStream, size); if (errCnt==0){ uint64_t id = 0; - id = Em410xDecode(BitStream, size); - if (id>0) setDemodBuf(BitStream, size); - printEM410x(id); + size_t idx=0; + id = Em410xDecode(BitStream, &size, &idx); + if (id>0){ + //need to adjust to set bitstream back to manchester encoded data + //setDemodBuf(BitStream, size, idx); + + printEM410x(id); + } } return 1; } @@ -327,7 +351,8 @@ int Cmdmandecoderaw(const char *Cmd) //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 +//takes 2 arguments "offset" default = 0 if 1 it will shift the decode by one bit +// and "invert" default = 0 if 1 it will invert output // 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 @@ -339,8 +364,9 @@ int CmdBiphaseDecodeRaw(const char *Cmd) int errCnt=0; size_t size=0; int offset=0; + int invert=0; int high=0, low=0; - sscanf(Cmd, "%i", &offset); + sscanf(Cmd, "%i %i", &offset, &invert); uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; //get graphbuffer & high and low for (;i=20){ PrintAndLog("Too many errors attempting to decode: %d",errCnt); return 0; @@ -364,7 +390,6 @@ int CmdBiphaseDecodeRaw(const char *Cmd) return 1; } - //by marshmellow //takes 2 arguments - clock and invert both as integers //attempts to demodulate ask only @@ -384,14 +409,15 @@ int Cmdaskrawdemod(const char *Cmd) 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"); + if (g_debugMode==1) PrintAndLog("errCnt: %d, BitLen: %d, clk: %d, invert: %d", errCnt, BitLen, clk, invert); 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 DemodBuffer - setDemodBuf(BitStream,BitLen); + + //move BitStream back to DemodBuffer + setDemodBuf(BitStream,BitLen,0); - //output + //output if (errCnt>0){ PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt); } @@ -511,10 +537,6 @@ 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(); @@ -539,6 +561,27 @@ int CmdDec(const char *Cmd) return 0; } +//by marshmellow +//shift graph zero up or down based on input + or - +int CmdGraphShiftZero(const char *Cmd) +{ + + int shift=0; + //set options from parameters entered with the command + sscanf(Cmd, "%i", &shift); + int shiftedVal=0; + for(int i = 0; i127) + shiftedVal=127; + else if (shiftedVal<-127) + shiftedVal=-127; + GraphBuffer[i]= shiftedVal; + } + CmdNorm(""); + return 0; +} + /* Print our clock rate */ // uses data from graphbuffer int CmdDetectClockRate(const char *Cmd) @@ -557,27 +600,44 @@ 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) { - //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; + 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:"); - setDemodBuf(BitStream,size); + setDemodBuf(BitStream,size,0); // Now output the bitstream to the scrollback by line of 16 bits if(size > (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 @@ -599,20 +659,32 @@ 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 size = HIDdemodFSK(BitStream,BitLen,&hi2,&hi,&lo); - if (size<0){ - PrintAndLog("Error demoding fsk"); + int idx = HIDdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo); + if (idx<0){ + 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) { + if (g_debugMode) PrintAndLog("DEBUG: Error - no values found"); return 0; } - if (hi2==0 && hi==0 && lo==0) return 0; if (hi2 != 0){ //extra large HID tags PrintAndLog("HID Prox TAG ID: %x%08x%08x (%d)", (unsigned int) hi2, (unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF); - setDemodBuf(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 fmtLen = 0; uint32_t fc = 0; uint32_t cardnum = 0; @@ -652,12 +724,61 @@ int CmdFSKdemodHID(const char *Cmd) 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); - setDemodBuf(BitStream,BitLen); - return 1; } - return 0; + setDemodBuf(BitStream,BitLen,idx); + if (g_debugMode){ + PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, BitLen); + printDemodBuff(); + } + return 1; +} + +//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) +{ + //raw fsk demod no manchester decoding no start bit finding just get binary from wave + uint32_t hi2=0, hi=0, lo=0; + + uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; + size_t BitLen = getFromGraphBuf(BitStream); + //get binary from fsk wave + int idx = ParadoxdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo); + if (idx<0){ + 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){ + if (g_debugMode) PrintAndLog("DEBUG: Error - no value found"); + return 0; + } + uint32_t fc = ((hi & 0x3)<<6) | (lo>>26); + uint32_t cardnum = (lo>>10)&0xFFFF; + + PrintAndLog("Paradox TAG ID: %x%08x - FC: %d - Card: %d - Checksum: %02x", + hi>>10, (hi & 0x3)<<26 | (lo>>10), fc, cardnum, (lo>>2) & 0xFF ); + setDemodBuf(BitStream,BitLen,idx); + if (g_debugMode){ + PrintAndLog("DEBUG: idx: %d, len: %d, Printing Demod Buffer:", idx, BitLen); + printDemodBuff(); + } + return 1; } + //by marshmellow //IO-Prox demod - FSK RF/64 with preamble of 000000001 //print ioprox ID and some format details @@ -666,21 +787,39 @@ 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; - //something in graphbuffer - if (GraphTraceLen < 65) return 0; + //something in graphbuffer? + if (GraphTraceLen < 65) { + if (g_debugMode)PrintAndLog("DEBUG: not enough samples in GraphBuffer"); + return 0; + } uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; size_t BitLen = getFromGraphBuf(BitStream); + //get binary from fsk wave - // PrintAndLog("DEBUG: got buff"); idx = IOdemodFSK(BitStream,BitLen); if (idx<0){ - //PrintAndLog("Error demoding fsk"); + 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; } - // PrintAndLog("DEBUG: Got IOdemodFSK"); if (idx==0){ - //PrintAndLog("IO Prox Data not found - FSK Data:"); - //if (BitLen > 92) printBitStream(BitStream,92); + if (g_debugMode==1){ + PrintAndLog("DEBUG: IO Prox Data not found - FSK Bits: %d",BitLen); + if (BitLen > 92) printBitStream(BitStream,92); + } return 0; } //Index map @@ -692,7 +831,10 @@ int CmdFSKdemodIO(const char *Cmd) // //XSF(version)facility:codeone+codetwo (raw) //Handle the data - if (idx+64>BitLen) return 0; + if (idx+64>BitLen) { + if (g_debugMode==1) PrintAndLog("not enough bits found - bitlen: %d",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 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]); @@ -707,13 +849,241 @@ int CmdFSKdemodIO(const char *Cmd) 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("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++]; + setDemodBuf(BitStream,64,idx); + if (g_debugMode){ + PrintAndLog("DEBUG: idx: %d, Len: %d, Printing demod buffer:",idx,64); + printDemodBuff(); + } + return 1; +} + + +//by marshmellow +//AWID Prox demod - FSK RF/50 with preamble of 00000001 (always a 96 bit data stream) +//print full AWID Prox ID and some bit format details if found +int CmdFSKdemodAWID(const char *Cmd) +{ + + //int verbose=1; + //sscanf(Cmd, "%i", &verbose); + + //raw fsk demod no manchester decoding no start bit finding just get binary from wave + uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; + size_t size = getFromGraphBuf(BitStream); + + //get binary from fsk wave + 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"); + else if (idx == -3) + PrintAndLog("DEBUG: Error - problem during FSK demod"); + // else if (idx == -3) + // PrintAndLog("Error: thought we had a tag but the parity failed"); + else if (idx == -4) + PrintAndLog("DEBUG: Error - AWID preamble not found"); + else if (idx == -5) + PrintAndLog("DEBUG: Error - Size not correct: %d", size); + else + PrintAndLog("DEBUG: Error %d",idx); + } + return 0; + } - DemodBufferLen=64; + // Index map + // 0 10 20 30 40 50 60 + // | | | | | | | + // 01234567 890 1 234 5 678 9 012 3 456 7 890 1 234 5 678 9 012 3 456 7 890 1 234 5 678 9 012 3 - to 96 + // ----------------------------------------------------------------------------- + // 00000001 000 1 110 1 101 1 011 1 101 1 010 0 000 1 000 1 010 0 001 0 110 1 100 0 000 1 000 1 + // premable bbb o bbb o bbw o fff o fff o ffc o ccc o ccc o ccc o ccc o ccc o wxx o xxx o xxx o - to 96 + // |---26 bit---| |-----117----||-------------142-------------| + // b = format bit len, o = odd parity of last 3 bits + // f = facility code, c = card number + // w = wiegand parity + // (26 bit format shown) + + //get raw ID before removing parities + uint32_t rawLo = bytebits_to_byte(BitStream+idx+64,32); + uint32_t rawHi = bytebits_to_byte(BitStream+idx+32,32); + uint32_t rawHi2 = bytebits_to_byte(BitStream+idx,32); + setDemodBuf(BitStream,96,idx); + + size = removeParity(BitStream, idx+8, 4, 1, 88); + if (size != 66){ + if (g_debugMode==1) PrintAndLog("DEBUG: Error - at parity check-tag size does not match AWID format"); + return 0; + } + // ok valid card found! + + // Index map + // 0 10 20 30 40 50 60 + // | | | | | | | + // 01234567 8 90123456 7890123456789012 3 456789012345678901234567890123456 + // ----------------------------------------------------------------------------- + // 00011010 1 01110101 0000000010001110 1 000000000000000000000000000000000 + // bbbbbbbb w ffffffff cccccccccccccccc w xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx + // |26 bit| |-117--| |-----142------| + // b = format bit len, o = odd parity of last 3 bits + // f = facility code, c = card number + // w = wiegand parity + // (26 bit format shown) + + uint32_t fc = 0; + uint32_t cardnum = 0; + uint32_t code1 = 0; + uint32_t code2 = 0; + uint8_t fmtLen = bytebits_to_byte(BitStream,8); + if (fmtLen==26){ + fc = bytebits_to_byte(BitStream+9, 8); + cardnum = bytebits_to_byte(BitStream+17, 16); + code1 = bytebits_to_byte(BitStream+8,fmtLen); + PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %x%08x%08x", fmtLen, fc, cardnum, code1, rawHi2, rawHi, rawLo); + } else { + cardnum = bytebits_to_byte(BitStream+8+(fmtLen-17), 16); + if (fmtLen>32){ + code1 = bytebits_to_byte(BitStream+8,fmtLen-32); + code2 = bytebits_to_byte(BitStream+8+(fmtLen-32),32); + PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x%08x, Raw: %x%08x%08x", fmtLen, cardnum, code1, code2, rawHi2, rawHi, rawLo); + } else{ + code1 = bytebits_to_byte(BitStream+8,fmtLen); + PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x, Raw: %x%08x%08x", fmtLen, cardnum, code1, rawHi2, rawHi, rawLo); + } + } + if (g_debugMode){ + PrintAndLog("DEBUG: idx: %d, Len: %d Printing Demod Buffer:", idx, 96); + printDemodBuff(); + } + //todo - convert hi2, hi, lo to demodbuffer for future sim/clone commands + return 1; +} + +//by marshmellow +//Pyramid Prox demod - FSK RF/50 with preamble of 0000000000000001 (always a 128 bit data stream) +//print full Farpointe Data/Pyramid Prox ID and some bit format details if found +int CmdFSKdemodPyramid(const char *Cmd) +{ + //raw fsk demod no manchester decoding no start bit finding just get binary from wave + uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; + size_t size = getFromGraphBuf(BitStream); + + //get binary from fsk wave + 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"); + else if (idx == -2) + PrintAndLog("DEBUG: Error - problem during FSK demod"); + else if (idx == -3) + PrintAndLog("DEBUG: Error - Size not correct: %d", size); + else if (idx == -4) + PrintAndLog("DEBUG: Error - Pyramid preamble not found"); + else + PrintAndLog("DEBUG: Error - idx: %d",idx); + } + return 0; + } + // Index map + // 0 10 20 30 40 50 60 + // | | | | | | | + // 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3 + // ----------------------------------------------------------------------------- + // 0000000 0 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 + // premable xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o + + // 64 70 80 90 100 110 120 + // | | | | | | | + // 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7 + // ----------------------------------------------------------------------------- + // 0000000 1 0000000 1 0000000 1 0110111 0 0011000 1 0000001 0 0001100 1 1001010 0 + // xxxxxxx o xxxxxxx o xxxxxxx o xswffff o ffffccc o ccccccc o ccccccw o ppppppp o + // |---115---||---------71---------| + // s = format start bit, o = odd parity of last 7 bits + // f = facility code, c = card number + // w = wiegand parity, x = extra space for other formats + // p = unknown checksum + // (26 bit format shown) + + //get raw ID before removing parities + uint32_t rawLo = bytebits_to_byte(BitStream+idx+96,32); + uint32_t rawHi = bytebits_to_byte(BitStream+idx+64,32); + uint32_t rawHi2 = bytebits_to_byte(BitStream+idx+32,32); + uint32_t rawHi3 = bytebits_to_byte(BitStream+idx,32); + setDemodBuf(BitStream,128,idx); + + size = removeParity(BitStream, idx+8, 8, 1, 120); + if (size != 105){ + if (g_debugMode==1) PrintAndLog("DEBUG: Error at parity check-tag size does not match Pyramid format, SIZE: %d, IDX: %d, hi3: %x",size, idx, rawHi3); + return 0; + } + + // ok valid card found! + + // Index map + // 0 10 20 30 40 50 60 70 + // | | | | | | | | + // 01234567890123456789012345678901234567890123456789012345678901234567890 + // ----------------------------------------------------------------------- + // 00000000000000000000000000000000000000000000000000000000000000000000000 + // xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx + + // 71 80 90 100 + // | | | | + // 1 2 34567890 1234567890123456 7 8901234 + // --------------------------------------- + // 1 1 01110011 0000000001000110 0 1001010 + // s w ffffffff cccccccccccccccc w ppppppp + // |--115-| |------71------| + // s = format start bit, o = odd parity of last 7 bits + // f = facility code, c = card number + // w = wiegand parity, x = extra space for other formats + // p = unknown checksum + // (26 bit format shown) + + //find start bit to get fmtLen + int j; + for (j=0; j32){ + //code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen-32); + //code2 = bytebits_to_byte(BitStream+(size-32),32); + PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo); + } else{ + //code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen); + PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo); + } + } + if (g_debugMode){ + PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, 128); + printDemodBuff(); + } return 1; } + int CmdFSKdemod(const char *Cmd) //old CmdFSKdemod needs updating { static const int LowTone[] = { @@ -800,8 +1170,7 @@ 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) { @@ -833,13 +1202,44 @@ int CmdFSKdemod(const char *Cmd) //old CmdFSKdemod needs updating return 0; } +//by marshmellow +//attempt to detect the field clock and bit clock for FSK +int CmdFSKfcDetect(const char *Cmd) +{ + uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; + size_t size = getFromGraphBuf(BitStream); + + 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; + + 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; sscanf(Cmd, "%i %i", &clk, &invert); @@ -852,13 +1252,13 @@ int PSKnrzDemod(const char *Cmd){ 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); + 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); + setDemodBuf(BitStream,BitLen,0); return errCnt; } // Indala 26 bit decode @@ -866,35 +1266,30 @@ int PSKnrzDemod(const char *Cmd){ // optional arguments - same as CmdpskNRZrawDemod (clock & invert) int CmdIndalaDecode(const char *Cmd) { - uint8_t verbose = 1; int ans; if (strlen(Cmd)>0){ - if (Cmd[0]=='0'){ - verbose=0; - ans = PSKnrzDemod("32"); - }else{ - ans = PSKnrzDemod(Cmd); - } + ans = PSKnrzDemod(Cmd, 0); } else{ //default to RF/32 - ans = PSKnrzDemod("32"); + ans = PSKnrzDemod("32", 0); } if (ans < 0){ - if (verbose) + if (g_debugMode==1) PrintAndLog("Error1: %d",ans); return 0; } uint8_t invert=0; ans = indala26decode(DemodBuffer,(size_t *) &DemodBufferLen, &invert); if (ans < 1) { - if (verbose) + if (g_debugMode==1) PrintAndLog("Error2: %d",ans); return -1; } - char showbits[251]; + char showbits[251]={0x00}; if (invert) - if (verbose) + if (g_debugMode==1) PrintAndLog("Had to invert bits"); + //convert UID to HEX uint32_t uid1, uid2, uid3, uid4, uid5, uid6, uid7; int idx; @@ -940,9 +1335,16 @@ 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}; @@ -952,31 +1354,60 @@ 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) { - uint8_t verbose = 1; int errCnt; - if (strlen(Cmd)>0){ - if (Cmd[0]=='0') - verbose=0; - } - - errCnt = PSKnrzDemod(Cmd); + + errCnt = PSKnrzDemod(Cmd, 1); //output - if (errCnt<0) return 0; + if (errCnt<0){ + if (g_debugMode) PrintAndLog("Error demoding: %d",errCnt); + return 0; + } if (errCnt>0){ - if (verbose) + if (g_debugMode){ 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(); + PrintAndLog("PSK or NRZ demoded bitstream:"); + // Now output the bitstream to the scrollback by line of 16 bits + printDemodBuff(); + } + }else{ + PrintAndLog("PSK or NRZ demoded bitstream:"); + // Now output the bitstream to the scrollback by line of 16 bits + printDemodBuff(); + return 1; + } + return 0; +} - return 1; +// 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) @@ -995,7 +1426,7 @@ 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); @@ -1004,7 +1435,7 @@ 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; } @@ -1054,7 +1485,7 @@ int CmdHpf(const char *Cmd) int CmdSamples(const char *Cmd) { - uint8_t got[40000]; + uint8_t got[BIGBUF_SIZE] = {0x00}; int n = strtol(Cmd, NULL, 0); if (n == 0) @@ -1064,14 +1495,14 @@ int CmdSamples(const char *Cmd) n = sizeof(got); PrintAndLog("Reading %d samples from device memory\n", n); - GetFromBigBuf(got,n,0); - WaitForResponse(CMD_ACK,NULL); + 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; + } + GraphTraceLen = n; + RepaintGraphWindow(); + return 0; } int CmdTuneSamples(const char *Cmd) @@ -1128,14 +1559,14 @@ int CmdTuneSamples(const char *Cmd) int CmdLoad(const char *Cmd) { - char filename[FILE_PATH_SIZE] = {0x00}; - int len = 0; + char filename[FILE_PATH_SIZE] = {0x00}; + int len = 0; - len = strlen(Cmd); - if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE; - memcpy(filename, Cmd, len); + len = strlen(Cmd); + if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE; + memcpy(filename, Cmd, len); - FILE *f = fopen(filename, "r"); + FILE *f = fopen(filename, "r"); if (!f) { PrintAndLog("couldn't open '%s'", filename); return 0; @@ -1164,6 +1595,8 @@ int CmdLtrim(const char *Cmd) RepaintGraphWindow(); return 0; } + +// trim graph to input argument length int CmdRtrim(const char *Cmd) { int ds = atoi(Cmd); @@ -1444,12 +1877,12 @@ int CmdPlot(const char *Cmd) int CmdSave(const char *Cmd) { - char filename[FILE_PATH_SIZE] = {0x00}; - int len = 0; + char filename[FILE_PATH_SIZE] = {0x00}; + int len = 0; - len = strlen(Cmd); - if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE; - memcpy(filename, Cmd, len); + len = strlen(Cmd); + if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE; + memcpy(filename, Cmd, len); FILE *f = fopen(filename, "w"); @@ -1560,19 +1993,23 @@ 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 (args optional[clock will try Auto-detect])"}, - {"askrawdemod", Cmdaskrawdemod, 1, "[clock] [invert<0|1>] -- Attempt to demodulate ASK tags and output binary (args optional[clock will try Auto-detect])"}, + {"askmandemod", Cmdaskmandemod, 1, "[clock] [invert<0|1>] -- Attempt to demodulate ASK/Manchester tags and output binary (args optional)"}, + {"askrawdemod", Cmdaskrawdemod, 1, "[clock] [invert<0|1>] -- Attempt to demodulate ASK tags and output bin (args optional)"}, {"autocorr", CmdAutoCorr, 1, " -- Autocorrelation over window"}, - {"biphaserawdecode",CmdBiphaseDecodeRaw,1,"[offset] Biphase decode binary stream already in graph buffer (offset = bit to start decode from)"}, + {"biphaserawdecode",CmdBiphaseDecodeRaw,1,"[offset] [invert<0|1>] Biphase decode bin stream in demod buffer (offset = 0|1 bits to shift the decode start)"}, {"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 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] [rchigh] [rclow] Demodulate graph window from FSK to binary (clock = 50)(invert = 1|0)(rchigh = 10)(rclow=8)"}, + {"fskawiddemod", CmdFSKdemodAWID, 1, "Demodulate graph window as an AWID FSK tag using raw"}, + {"fskfcdetect", CmdFSKfcDetect, 1, "Try to detect the Field Clock of an FSK wave"}, + {"fskhiddemod", CmdFSKdemodHID, 1, "Demodulate graph window as a HID FSK tag using raw"}, + {"fskiodemod", CmdFSKdemodIO, 1, "Demodulate graph window as an IO Prox tag FSK using raw"}, + {"fskpyramiddemod",CmdFSKdemodPyramid,1, "Demodulate graph window as a Pyramid FSK tag using raw"}, + {"fskparadoxdemod",CmdFSKdemodParadox,1, "Demodulate graph window as a Paradox FSK tag using raw"}, + {"fskrawdemod", CmdFSKrawdemod, 1, "[clock rate] [invert] [rchigh] [rclow] Demodulate graph window from FSK to bin (clock = 50)(invert = 1|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"}, @@ -1587,11 +2024,14 @@ 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[clock will try Auto-detect])"}, - {"psknrzrawdemod",CmdpskNRZrawDemod, 1, "[clock] [invert<0|1>] -- Attempt to demodulate psk or nrz tags and output binary (args optional[clock will try Auto-detect])"}, + {"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"}, + {"setdebugmode", CmdSetDebugMode, 1, "<0|1> -- Turn on or off Debugging Mode for demods"}, + {"shiftgraphzero",CmdGraphShiftZero, 1, " -- Shift 0 for Graphed wave + or - shift value"}, {"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"},