X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/d5a72d2fee4bcb0377c64c0be7bb22a1d7e18b3a..0644d5e3a3ed255fea1084c0af564c00f592b36c:/client/cmddata.c diff --git a/client/cmddata.c b/client/cmddata.c index 0a8bcd7a..0ec73cbb 100644 --- a/client/cmddata.c +++ b/client/cmddata.c @@ -21,9 +21,66 @@ #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; 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, size_t size, size_t startIdx) +{ + 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() +{ + 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; @@ -81,7 +138,7 @@ int Cmdaskdemod(const char *Cmd) sscanf(Cmd, "%i", &c); /* Detect high and lows and clock */ - // (AL - clock???) + // (AL - clock???) for (i = 0; i < GraphTraceLen; ++i) { if (GraphBuffer[i] > high) @@ -152,24 +209,25 @@ void printBitStream(uint8_t BitStream[], uint32_t bitLen) BitStream[i+14], BitStream[i+15]); } - return; + return; } //by marshmellow +//print EM410x ID in multiple formats 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--){ for (i=0;i<8;i++){ - id2lo=(id2lo<<1LL)|((id & (iii<<(i+((ii-1)*8))))>>(i+((ii-1)*8))); + id2lo=(id2lo<<1LL) | ((id & (iii << (i+((ii-1)*8)))) >> (i+((ii-1)*8))); } } //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)); @@ -177,73 +235,77 @@ void printEM410x(uint64_t id) PrintAndLog("DEZ 14/IK2 : %014lld",id); PrintAndLog("DEZ 15/IK3 : %015lld",id2lo); PrintAndLog("Other : %05lld_%03lld_%08lld",(id&0xFFFF),((id>>16LL) & 0xFF),(id & 0xFFFFFF)); - } + } return; } //by marshmellow +//take binary from demod buffer and see if we can find an EM410x 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); - 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; } + //by marshmellow //takes 2 arguments - clock and invert both as integers -//attempts to demodulate ask while decoding manchester +//attempts to demodulate ask while decoding manchester //prints binary found and saves in graphbuffer for further commands int Cmdaskmandemod(const char *Cmd) { - int invert=0; - int clk=0; + int invert=0; + int clk=0; uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; - sscanf(Cmd, "%i %i", &clk, &invert); + sscanf(Cmd, "%i %i", &clk, &invert); if (invert != 0 && invert != 1) { PrintAndLog("Invalid argument: %s", Cmd); return 0; } - uint32_t BitLen = getFromGraphBuf(BitStream); + size_t BitLen = getFromGraphBuf(BitStream); + if (g_debugMode==1) PrintAndLog("DEBUG: Bitlen from grphbuff: %d",BitLen); int errCnt=0; errCnt = askmandemod(BitStream, &BitLen,&clk,&invert); - if (errCnt==-1){ //if fatal error (or -1) - //PrintAndLog("no data found"); + if (errCnt<0||BitLen<16){ //if fatal error (or -1) + if (g_debugMode==1) PrintAndLog("no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt,invert,BitLen,clk); return 0; - } - PrintAndLog("Using Clock: %d and invert=%d",clk,invert); - //no longer put BitStream back into GraphBuffer... - //PrintAndLog("Data start pos:%d, lastBit:%d, stop pos:%d, numBits:%d",iii,lastBit,i,bitnum); - //move BitStream back to GraphBuffer - /* - ClearGraph(0); - for (i=0; i < bitnum; ++i){ - GraphBuffer[i]=BitStream[i]; - } - GraphTraceLen=bitnum; - RepaintGraphWindow(); - */ + } + PrintAndLog("\nUsing Clock: %d - Invert: %d - Bits Found: %d",clk,invert,BitLen); + //output if (errCnt>0){ PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt); } PrintAndLog("ASK/Manchester decoded bitstream:"); // Now output the bitstream to the scrollback by line of 16 bits - printBitStream(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 - setGraphBuf(BitStream,BitLen); + 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; } @@ -254,37 +316,36 @@ int Cmdmandecoderaw(const char *Cmd) { int i =0; int errCnt=0; - int bitnum=0; + size_t size=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"); return 0; } - bitnum=i; - errCnt=manrawdecode(BitStream,&bitnum); + size=i; + errCnt=manrawdecode(BitStream, &size); if (errCnt>=20){ PrintAndLog("Too many errors: %d",errCnt); return 0; } PrintAndLog("Manchester Decoded - # errors:%d - data:",errCnt); - printBitStream(BitStream,bitnum); + printBitStream(BitStream, size); if (errCnt==0){ - //put back in graphbuffer - ClearGraph(0); - for (i=0; i0){ + //need to adjust to set bitstream back to manchester encoded data + //setDemodBuf(BitStream, size, idx); + + printEM410x(id); + } } return 1; } @@ -292,8 +353,9 @@ 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 -// since it is not like manchester and doesn't have an incorrect bit pattern we +//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 // (better would be to demod and decode at the same time so we can distinguish large @@ -302,76 +364,70 @@ int CmdBiphaseDecodeRaw(const char *Cmd) { int i = 0; int errCnt=0; - int bitnum=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 (;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"); return 0; } - bitnum=i; - errCnt=BiphaseRawDecode(BitStream,&bitnum, offset); + size=i; + errCnt=BiphaseRawDecode(BitStream, &size, offset, invert); 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); + printBitStream(BitStream, size); 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 //prints binary found and saves in graphbuffer for further commands int Cmdaskrawdemod(const char *Cmd) { - uint32_t i; - int invert=0; - int clk=0; + int invert=0; + int clk=0; uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; - sscanf(Cmd, "%i %i", &clk, &invert); + sscanf(Cmd, "%i %i", &clk, &invert); if (invert != 0 && invert != 1) { PrintAndLog("Invalid argument: %s", Cmd); return 0; } - int BitLen = getFromGraphBuf(BitStream); + size_t 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) - PrintAndLog("no data found"); + 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 and invert=%d",clk,invert); - //PrintAndLog("Data start pos:%d, lastBit:%d, stop pos:%d, numBits:%d",iii,lastBit,i,bitnum); - //move BitStream back to GraphBuffer - - ClearGraph(0); - for (i=0; i < BitLen; ++i){ - GraphBuffer[i]=BitStream[i]; - } - GraphTraceLen=BitLen; - RepaintGraphWindow(); - - //output + } + PrintAndLog("Using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen); + + //move BitStream back to DemodBuffer + setDemodBuf(BitStream,BitLen,0); + + //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); - - return 0; + + return 1; } int CmdAutoCorr(const char *Cmd) @@ -410,7 +466,7 @@ int CmdBitsamples(const char *Cmd) { int cnt = 0; uint8_t got[12288]; - + GetFromBigBuf(got,sizeof(got),0); WaitForResponse(CMD_ACK,NULL); @@ -483,10 +539,6 @@ 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(); @@ -510,53 +562,122 @@ 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 - +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 +// uses data from graphbuffer int CmdDetectClockRate(const char *Cmd) { GetClock("",0,0); - //int clock = DetectASKClock(0); - //PrintAndLog("Auto-detected clock rate: %d", clock); + //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 = 0; + int invert=0; + 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; - } - 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); - uint32_t i=0; + rfLen = 0; + } + } + uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; - uint32_t BitLen = getFromGraphBuf(BitStream); - int size = fskdemod(BitStream,BitLen,rfLen,invert); + 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:"); - 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); @@ -575,44 +696,52 @@ int CmdFSKdemodHID(const char *Cmd) uint32_t hi2=0, hi=0, lo=0; uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; - uint32_t BitLen = getFromGraphBuf(BitStream); + 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("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); - 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; if (((hi>>5)&1)==1){//if bit 38 is set then < 37 bit format is used uint32_t lo2=0; - lo2=(((hi & 15) << 12) | (lo>>20)); //get bits 21-37 to check for format len bit + lo2=(((hi & 31) << 12) | (lo>>20)); //get bits 21-37 to check for format len bit uint8_t idx3 = 1; while(lo2>1){ //find last bit set to 1 (format len bit) lo2=lo2>>1; idx3++; } - fmtLen =idx3+19; + fmtLen =idx3+19; fc =0; cardnum=0; if(fmtLen==26){ cardnum = (lo>>1)&0xFFFF; fc = (lo>>17)&0xFF; } - if(fmtLen==37){ - cardnum = (lo>>1)&0x7FFFF; - fc = ((hi&0xF)<<12)|(lo>>20); - } if(fmtLen==34){ cardnum = (lo>>1)&0xFFFF; fc= ((hi&1)<<15)|(lo>>17); @@ -623,23 +752,72 @@ int CmdFSKdemodHID(const char *Cmd) } } else { //if bit 38 is not set then 37 bit format is used - fmtLen= 37; - fc =0; - cardnum=0; - if(fmtLen==37){ + fmtLen = 37; + fc = 0; + cardnum = 0; + 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", + } + 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); - 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 @@ -647,22 +825,40 @@ 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; + int idx=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}; - uint32_t BitLen = getFromGraphBuf(BitStream); + size_t BitLen = getFromGraphBuf(BitStream); + //get binary from fsk wave - // PrintAndLog("DEBUG: got buff"); - idx = IOdemodFSK(BitStream,BitLen); + 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 @@ -674,25 +870,259 @@ 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",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",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]); + 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) ; + uint32_t code2 = bytebits_to_byte(BitStream+idx+32,32); + 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("IO Prox XSF(%02d)%02x:%05d (%08x%08x)",version,facilitycode,number,code,code2); + 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; + } + + // 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) - PrintAndLog("XSF(%02d)%02x:%d (%08x%08x)",version,facilitycode,number,code,code2); - setGraphBuf(BitStream,BitLen); + //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[] = { @@ -713,12 +1143,12 @@ int CmdFSKdemod(const char *Cmd) //old CmdFSKdemod needs updating int lowLen = sizeof (LowTone) / sizeof (int); int highLen = sizeof (HighTone) / sizeof (int); - int convLen = (highLen > lowLen) ? highLen : lowLen; //if highlen > lowLen then highlen else lowlen + int convLen = (highLen > lowLen) ? highLen : lowLen; uint32_t hi = 0, lo = 0; int i, j; int minMark = 0, maxMark = 0; - + for (i = 0; i < GraphTraceLen - convLen; ++i) { int lowSum = 0, highSum = 0; @@ -779,8 +1209,7 @@ 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) { @@ -812,6 +1241,214 @@ 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; +} + +//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); + if (invert != 0 && invert != 1) { + PrintAndLog("Invalid argument: %s", Cmd); + return -1; + } + uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; + size_t 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) + if (g_debugMode==1) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt); + return -1; + } + 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); + return errCnt; +} +// Indala 26 bit decode +// by marshmellow +// optional arguments - same as CmdpskNRZrawDemod (clock & invert) +int CmdIndalaDecode(const char *Cmd) +{ + int ans; + if (strlen(Cmd)>0){ + ans = PSKnrzDemod(Cmd, 0); + } else{ //default to RF/32 + ans = PSKnrzDemod("32", 0); + } + + if (ans < 0){ + 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 (g_debugMode==1) + PrintAndLog("Error2: %d",ans); + return -1; + } + char showbits[251]={0x00}; + if (invert) + if (g_debugMode==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); + } + 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}; + size_t bitLen = getFromGraphBuf(bitStream); + pskCleanWave(bitStream, bitLen); + setGraphBuf(bitStream, bitLen); + return 0; +} + +// 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, 1); + //output + if (errCnt<0){ + if (g_debugMode) PrintAndLog("Error demoding: %d",errCnt); + return 0; + } + if (errCnt>0){ + 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(); + } + }else{ + PrintAndLog("PSK or NRZ demoded bitstream:"); + // Now output the bitstream to the scrollback by line of 16 bits + printDemodBuff(); + return 1; + } + 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); @@ -828,8 +1465,8 @@ 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); /* if no args send something */ @@ -837,9 +1474,9 @@ 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; - } + } GetFromBigBuf(got,requested,offset); WaitForResponse(CMD_ACK,NULL); @@ -859,8 +1496,8 @@ int CmdHexsamples(const char *Cmd) *(string_ptr - 1) = '\0'; PrintAndLog("%s", string_buf); string_buf[0] = '\0'; - } } + } return 0; } @@ -884,55 +1521,147 @@ int CmdHpf(const char *Cmd) RepaintGraphWindow(); return 0; } +typedef struct { + uint8_t * buffer; + uint32_t numbits; + uint32_t position; +}BitstreamOut; -int CmdSamples(const char *Cmd) +bool _headBit( BitstreamOut *stream) { - int cnt = 0; - int n; - uint8_t got[40000]; + int bytepos = stream->position >> 3; // divide by 8 + int bitpos = (stream->position++) & 7; // mask out 00000111 + return (*(stream->buffer + bytepos) >> (7-bitpos)) & 1; +} - n = strtol(Cmd, NULL, 0); - if (n == 0) n = 6000; - if (n > sizeof(got)) n = sizeof(got); - - PrintAndLog("Reading %d samples\n", n); - GetFromBigBuf(got,n,0); - WaitForResponse(CMD_ACK,NULL); - for (int j = 0; j < n; j++) { - GraphBuffer[cnt++] = ((int)got[j]) - 128; - } - - PrintAndLog("Done!\n"); - GraphTraceLen = n; - RepaintGraphWindow(); - return 0; +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) +{ + //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 = sizeof(got); + + if (n > sizeof(got)) + n = sizeof(got); + + 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) { - int cnt = 0; - int n = 255; - uint8_t got[255]; + int timeout = 0; + printf("\nMeasuring antenna characteristics, please wait..."); + + UsbCommand c = {CMD_MEASURE_ANTENNA_TUNING}; + SendCommand(&c); + + UsbCommand resp; + while(!WaitForResponseTimeout(CMD_MEASURED_ANTENNA_TUNING,&resp,1000)) { + timeout++; + printf("."); + if (timeout > 7) { + PrintAndLog("\nNo response from Proxmark. Aborting..."); + return 1; + } + } + + int peakv, peakf; + int vLf125, vLf134, vHf; + vLf125 = resp.arg[0] & 0xffff; + vLf134 = resp.arg[0] >> 16; + vHf = resp.arg[1] & 0xffff;; + peakf = resp.arg[2] & 0xffff; + peakv = resp.arg[2] >> 16; + PrintAndLog(""); + PrintAndLog("# LF antenna: %5.2f V @ 125.00 kHz", vLf125/1000.0); + PrintAndLog("# LF antenna: %5.2f V @ 134.00 kHz", vLf134/1000.0); + PrintAndLog("# LF optimal: %5.2f V @%9.2f kHz", peakv/1000.0, 12000.0/(peakf+1)); + PrintAndLog("# HF antenna: %5.2f V @ 13.56 MHz", vHf/1000.0); + if (peakv<2000) + PrintAndLog("# Your LF antenna is unusable."); + else if (peakv<10000) + PrintAndLog("# Your LF antenna is marginal."); + if (vHf<2000) + PrintAndLog("# Your HF antenna is unusable."); + else if (vHf<5000) + PrintAndLog("# Your HF antenna is marginal."); + + for (int i = 0; i < 256; i++) { + GraphBuffer[i] = resp.d.asBytes[i] - 128; + } - PrintAndLog("Reading %d samples\n", n); - GetFromBigBuf(got,n,7256); // armsrc/apps.h: #define FREE_BUFFER_OFFSET 7256 - WaitForResponse(CMD_ACK,NULL); - for (int j = 0; j < n; j++) { - GraphBuffer[cnt++] = ((int)got[j]) - 128; - } - PrintAndLog("Done! Divisor 89 is 134khz, 95 is 125khz.\n"); PrintAndLog("\n"); - GraphTraceLen = n; - RepaintGraphWindow(); + GraphTraceLen = 256; + ShowGraphWindow(); + return 0; } + int CmdLoad(const char *Cmd) { - FILE *f = fopen(Cmd, "r"); + 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); + + FILE *f = fopen(filename, "r"); if (!f) { - PrintAndLog("couldn't open '%s'", Cmd); + PrintAndLog("couldn't open '%s'", filename); return 0; } @@ -960,6 +1689,17 @@ int CmdLtrim(const char *Cmd) return 0; } +// trim graph to input argument length +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 * the GraphBuffer as 0 and 1 values @@ -1213,8 +1953,9 @@ int CmdNorm(const char *Cmd) if (max != min) { for (i = 0; i < GraphTraceLen; ++i) { - GraphBuffer[i] = (GraphBuffer[i] - ((max + min) / 2)) * 1000 / + GraphBuffer[i] = (GraphBuffer[i] - ((max + min) / 2)) * 256 / (max - min); + //marshmelow: adjusted *1000 to *256 to make +/- 128 so demod commands still work } } RepaintGraphWindow(); @@ -1229,9 +1970,17 @@ int CmdPlot(const char *Cmd) int CmdSave(const char *Cmd) { - FILE *f = fopen(Cmd, "w"); + 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); + + + FILE *f = fopen(filename, "w"); if(!f) { - PrintAndLog("couldn't open '%s'", Cmd); + PrintAndLog("couldn't open '%s'", filename); return 0; } int i; @@ -1272,12 +2021,12 @@ int CmdDirectionalThreshold(const char *Cmd) { int8_t upThres = param_get8(Cmd, 0); int8_t downThres = param_get8(Cmd, 1); - + printf("Applying Up Threshold: %d, Down Threshold: %d\n", upThres, downThres); - + int lastValue = GraphBuffer[0]; GraphBuffer[0] = 0; // Will be changed at the end, but init 0 as we adjust to last samples value if no threshold kicks in. - + for (int i = 1; i < GraphTraceLen; ++i) { // Apply first threshold to samples heading up if (GraphBuffer[i] >= upThres && GraphBuffer[i] > lastValue) @@ -1332,42 +2081,55 @@ int CmdZerocrossings(const char *Cmd) return 0; } -static command_t CommandTable[] = +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 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])"}, + {"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"}, - {"detectaskclock",CmdDetectClockRate, 1, "Detect ASK clock rate"}, + {"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] Demodulate graph window from FSK to binary (clock = 64 or 50)(invert = 1 or 0)"}, + {"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"}, + {"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"}, - {"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|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"}, - {"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"}, + {"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"}, - {"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."}, + {"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"}, + {"undec", CmdUndec, 1, "Un-decimate samples by 2"}, + {"zerocrossings", CmdZerocrossings, 1, "Count time between zero-crossings"}, {NULL, NULL, 0, NULL} };