X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/03e6bb4aed0ffd8e19897062071e18945c703d9d..e770c6482407fb67c37973cc3e95409cd5c6d952:/client/cmddata.c diff --git a/client/cmddata.c b/client/cmddata.c index 998f5ebb..b03a3ebc 100644 --- a/client/cmddata.c +++ b/client/cmddata.c @@ -56,6 +56,10 @@ void printDemodBuff() return; } if (bitLen>512) bitLen=512; //max output to 512 bits if we have more - should be plenty + + // ensure equally divided by 16 + bitLen &= 0xfff0; + for (i = 0; i <= (bitLen-16); i+=16) { PrintAndLog("%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i", DemodBuffer[i], @@ -188,6 +192,11 @@ void printBitStream(uint8_t BitStream[], uint32_t bitLen) return; } if (bitLen>512) bitLen=512; + + // ensure equally divided by 16 + bitLen &= 0xfff0; + + for (i = 0; i <= (bitLen-16); i+=16) { PrintAndLog("%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i", BitStream[i], @@ -258,24 +267,109 @@ int CmdEm410xDecode(const char *Cmd) //by marshmellow -//takes 2 arguments - clock and invert both as integers +//takes 3 arguments - clock, invert and maxErr as integers +//attempts to demodulate ask while decoding manchester +//prints binary found and saves in graphbuffer for further commands +int CmdAskEM410xDemod(const char *Cmd) +{ + int invert=0; + int clk=0; + int maxErr=100; + char cmdp = param_getchar(Cmd, 0); + if (strlen(Cmd) > 3 || cmdp == 'h' || cmdp == 'H') { + PrintAndLog("Usage: data askem410xdemod [clock] <0|1> [maxError]"); + PrintAndLog(" [set clock as integer] optional, if not set, autodetect."); + PrintAndLog(" , 1 for invert output"); + PrintAndLog(" [set maximum allowed errors], default = 100."); + PrintAndLog(""); + PrintAndLog(" sample: data askem410xdemod = demod an EM410x Tag ID from GraphBuffer"); + PrintAndLog(" : data askem410xdemod 32 = demod an EM410x Tag ID from GraphBuffer using a clock of RF/32"); + PrintAndLog(" : data askem410xdemod 32 1 = demod an EM410x Tag ID from GraphBuffer using a clock of RF/32 and inverting data"); + PrintAndLog(" : data askem410xdemod 1 = demod an EM410x Tag ID from GraphBuffer while inverting data"); + PrintAndLog(" : data askem410xdemod 64 1 0 = demod an EM410x Tag ID from GraphBuffer using a clock of RF/64 and inverting data and allowing 0 demod errors"); + + return 0; + } + + + uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; + sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr); + if (invert != 0 && invert != 1) { + PrintAndLog("Invalid argument: %s", Cmd); + return 0; + } + size_t BitLen = getFromGraphBuf(BitStream); + + if (g_debugMode==1) PrintAndLog("DEBUG: Bitlen from grphbuff: %d",BitLen); + if (BitLen==0) return 0; + int errCnt=0; + errCnt = askmandemod(BitStream, &BitLen, &clk, &invert, maxErr); + 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("\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 + setDemodBuf(BitStream,BitLen,0); + //printDemodBuff(); + uint64_t lo =0; + 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; + } + return 0; +} + +//by marshmellow +//takes 3 arguments - clock, invert, maxErr as integers //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 maxErr=100; + char cmdp = param_getchar(Cmd, 0); + if (strlen(Cmd) > 3 || cmdp == 'h' || cmdp == 'H') { + PrintAndLog("Usage: data askmandemod [clock] <0|1> [maxError]"); + PrintAndLog(" [set clock as integer] optional, if not set, autodetect."); + PrintAndLog(" , 1 for invert output"); + PrintAndLog(" [set maximum allowed errors], default = 100."); + PrintAndLog(""); + PrintAndLog(" sample: data askmandemod = demod an ask/manchester tag from GraphBuffer"); + PrintAndLog(" : data askmandemod 32 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32"); + PrintAndLog(" : data askmandemod 32 1 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32 and inverting data"); + PrintAndLog(" : data askmandemod 1 = demod an ask/manchester tag from GraphBuffer while inverting data"); + PrintAndLog(" : data askmandemod 64 1 0 = demod an ask/manchester tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors"); + + return 0; + } uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; - sscanf(Cmd, "%i %i", &clk, &invert); + sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr); if (invert != 0 && invert != 1) { PrintAndLog("Invalid argument: %s", Cmd); return 0; } - size_t BitLen = getFromGraphBuf(BitStream); if (g_debugMode==1) PrintAndLog("DEBUG: Bitlen from grphbuff: %d",BitLen); + if (BitLen==0) return 0; int errCnt=0; - errCnt = askmandemod(BitStream, &BitLen,&clk,&invert); + errCnt = askmandemod(BitStream, &BitLen, &clk, &invert, maxErr); 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; @@ -304,7 +398,7 @@ int Cmdaskmandemod(const char *Cmd) printEM410x(lo); return 1; } - return 0; + return 1; } //by marshmellow @@ -315,6 +409,16 @@ int Cmdmandecoderaw(const char *Cmd) int i =0; int errCnt=0; size_t size=0; + char cmdp = param_getchar(Cmd, 0); + if (strlen(Cmd) > 1 || cmdp == 'h' || cmdp == 'H') { + PrintAndLog("Usage: data manrawdecode"); + PrintAndLog(" Takes 10 and 01 and converts to 0 and 1 respectively"); + PrintAndLog(" --must have binary sequence in demodbuffer (run data askrawdemod first)"); + PrintAndLog(""); + PrintAndLog(" sample: data manrawdecode = decode manchester bitstream from the demodbuffer"); + return 0; + } + if (DemodBufferLen==0) return 0; uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; int high=0,low=0; for (;i 2 || cmdp == 'h' || cmdp == 'H') { + PrintAndLog("Usage: data biphaserawdecode [offset] "); + PrintAndLog(" Converts 10 or 01 to 0 and 11 or 00 to 1"); + PrintAndLog(" --must have binary sequence in demodbuffer (run data askrawdemod first)"); + PrintAndLog(""); + PrintAndLog(" [offset <0|1>], set to 0 not to adjust start position or to 1 to adjust decode start position"); + PrintAndLog(" [invert <0|1>], set to 1 to invert output"); + PrintAndLog(""); + PrintAndLog(" sample: data biphaserawdecode = decode biphase bitstream from the demodbuffer"); + PrintAndLog(" sample: data biphaserawdecode 1 1 = decode biphase bitstream from the demodbuffer, set offset, and invert output"); + return 0; + } sscanf(Cmd, "%i %i", &offset, &invert); + if (DemodBufferLen==0) return 0; uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; //get graphbuffer & high and low for (;i 3 || cmdp == 'h' || cmdp == 'H') { + PrintAndLog("Usage: data askrawdemod [clock] <0|1> [maxError]"); + PrintAndLog(" [set clock as integer] optional, if not set, autodetect."); + PrintAndLog(" , 1 for invert output"); + PrintAndLog(" [set maximum allowed errors], default = 100."); + PrintAndLog(""); + PrintAndLog(" sample: data askrawdemod = demod an ask tag from GraphBuffer"); + PrintAndLog(" : data askrawdemod 32 = demod an ask tag from GraphBuffer using a clock of RF/32"); + PrintAndLog(" : data askrawdemod 32 1 = demod an ask tag from GraphBuffer using a clock of RF/32 and inverting data"); + PrintAndLog(" : data askrawdemod 1 = demod an ask tag from GraphBuffer while inverting data"); + PrintAndLog(" : data askrawdemod 64 1 0 = demod an ask tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors"); + return 0; + } uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; - sscanf(Cmd, "%i %i", &clk, &invert); + sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr); if (invert != 0 && invert != 1) { PrintAndLog("Invalid argument: %s", Cmd); return 0; } size_t BitLen = getFromGraphBuf(BitStream); + if (BitLen==0) return 0; int errCnt=0; - errCnt = askrawdemod(BitStream, &BitLen,&clk,&invert); + errCnt = askrawdemod(BitStream, &BitLen, &clk, &invert, maxErr); 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("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("# 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 @@ -537,10 +671,6 @@ 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(); @@ -590,10 +720,8 @@ int CmdGraphShiftZero(const char *Cmd) // uses data from graphbuffer int CmdDetectClockRate(const char *Cmd) { - GetClock("",0,0); - //int clock = DetectASKClock(0); - //PrintAndLog("Auto-detected clock rate: %d", clock); - return 0; + int ans = GetClock("",0,0); + return ans; } //by marshmellow @@ -608,6 +736,22 @@ int CmdFSKrawdemod(const char *Cmd) int invert=0; int fchigh=0; int fclow=0; + char cmdp = param_getchar(Cmd, 0); + if (strlen(Cmd) > 4 || cmdp == 'h' || cmdp == 'H') { + PrintAndLog("Usage: data fskrawdemod [clock] <0|1> [rchigh] [rclow]"); + PrintAndLog(" [set clock as integer] optional, if not set, autodetect."); + PrintAndLog(" , 1 for invert output"); + + PrintAndLog(" [set maximum allowed errors], default = 100."); + PrintAndLog(""); + PrintAndLog(" sample: data fskrawdemod = demod an fsk tag from GraphBuffer using autodetect"); + PrintAndLog(" : data fskrawdemod 32 = demod an fsk tag from GraphBuffer using a clock of RF/32, autodetect fc"); + PrintAndLog(" : data fskrawdemod 32 1 = demod an fsk tag from GraphBuffer using a clock of RF/32, invert output, autodetect fc"); + PrintAndLog(" : data fskrawdemod 64 0 8 5 = demod an fsk1 RF/64 tag from GraphBuffer"); + PrintAndLog(" : data fskrawdemod 50 0 10 8 = demod an fsk2 RF/50 tag from GraphBuffer"); + PrintAndLog(" : data fskrawdemod 50 1 10 8 = demod an fsk2a RF/50 tag from GraphBuffer"); + return 0; + } //set options from parameters entered with the command sscanf(Cmd, "%i %i %i %i", &rfLen, &invert, &fchigh, &fclow); @@ -620,10 +764,12 @@ int CmdFSKrawdemod(const char *Cmd) uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; size_t BitLen = getFromGraphBuf(BitStream); + if (BitLen==0) return 0; //get field clock lengths uint16_t fcs=0; + uint8_t dummy=0; if (fchigh==0 || fclow == 0){ - fcs=countFC(BitStream, BitLen); + fcs=countFC(BitStream, BitLen, &dummy); if (fcs==0){ fchigh=10; fclow=8; @@ -646,6 +792,7 @@ int CmdFSKrawdemod(const char *Cmd) // 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 printBitStream(BitStream,size); + return 1; } else{ PrintAndLog("no FSK data found"); } @@ -662,10 +809,23 @@ int CmdFSKdemodHID(const char *Cmd) uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; size_t BitLen = getFromGraphBuf(BitStream); + if (BitLen==0) return 0; //get binary from fsk wave - size_t idx = HIDdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo); + int idx = HIDdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo); if (idx<0){ - if (g_debugMode) PrintAndLog("DEBUG: Error demoding fsk"); + if (g_debugMode){ + if (idx==-1){ + PrintAndLog("DEBUG: Just Noise Detected"); + } else if (idx == -2) { + PrintAndLog("DEBUG: Error demoding fsk"); + } else if (idx == -3) { + PrintAndLog("DEBUG: Preamble not found"); + } else if (idx == -4) { + PrintAndLog("DEBUG: Error in Manchester data, SIZE: %d", BitLen); + } else { + PrintAndLog("DEBUG: Error demoding fsk %d", idx); + } + } return 0; } if (hi2==0 && hi==0 && lo==0) { @@ -725,8 +885,8 @@ int CmdFSKdemodHID(const char *Cmd) return 1; } -//by marshmellow (based on existing demod + holiman's refactor) -//Paradox Prox demod - FSK RF/50 with preamble of 00011101 (then manchester encoded) +//by marshmellow +//Paradox Prox demod - FSK RF/50 with preamble of 00001111 (then manchester encoded) //print full Paradox Prox ID and some bit format details if found int CmdFSKdemodParadox(const char *Cmd) { @@ -735,10 +895,23 @@ int CmdFSKdemodParadox(const char *Cmd) uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; size_t BitLen = getFromGraphBuf(BitStream); + if (BitLen==0) return 0; //get binary from fsk wave - size_t idx = ParadoxdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo); + int idx = ParadoxdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo); if (idx<0){ - if (g_debugMode) PrintAndLog("DEBUG: Error demoding fsk"); + if (g_debugMode){ + if (idx==-1){ + PrintAndLog("DEBUG: Just Noise Detected"); + } else if (idx == -2) { + PrintAndLog("DEBUG: Error demoding fsk"); + } else if (idx == -3) { + PrintAndLog("DEBUG: Preamble not found"); + } else if (idx == -4) { + PrintAndLog("DEBUG: Error in Manchester data"); + } else { + PrintAndLog("DEBUG: Error demoding fsk %d", idx); + } + } return 0; } if (hi2==0 && hi==0 && lo==0){ @@ -774,11 +947,26 @@ int CmdFSKdemodIO(const char *Cmd) } uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; size_t BitLen = getFromGraphBuf(BitStream); + if (BitLen==0) return 0; //get binary from fsk wave idx = IOdemodFSK(BitStream,BitLen); if (idx<0){ - if (g_debugMode==1) PrintAndLog("DEBUG: demoding fsk error: %d", idx); + if (g_debugMode){ + if (idx==-1){ + PrintAndLog("DEBUG: Just Noise Detected"); + } else if (idx == -2) { + PrintAndLog("DEBUG: not enough samples"); + } else if (idx == -3) { + PrintAndLog("DEBUG: error during fskdemod"); + } else if (idx == -4) { + PrintAndLog("DEBUG: Preamble not found"); + } else if (idx == -5) { + PrintAndLog("DEBUG: Separator bits not found"); + } else { + PrintAndLog("DEBUG: Error demoding fsk %d", idx); + } + } return 0; } if (idx==0){ @@ -836,15 +1024,16 @@ int CmdFSKdemodAWID(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); + if (size==0) return 0; //get binary from fsk wave - int idx = AWIDdemodFSK(BitStream, size); + int idx = AWIDdemodFSK(BitStream, &size); if (idx<=0){ if (g_debugMode==1){ if (idx == -1) PrintAndLog("DEBUG: Error - not enough samples"); else if (idx == -2) - PrintAndLog("DEBUG: Error - only noise found - no waves"); + PrintAndLog("DEBUG: Error - only noise found"); else if (idx == -3) PrintAndLog("DEBUG: Error - problem during FSK demod"); // else if (idx == -3) @@ -852,7 +1041,7 @@ int CmdFSKdemodAWID(const char *Cmd) else if (idx == -4) PrintAndLog("DEBUG: Error - AWID preamble not found"); else if (idx == -5) - PrintAndLog("DEBUG: Error - Second AWID preamble not found"); + PrintAndLog("DEBUG: Error - Size not correct: %d", size); else PrintAndLog("DEBUG: Error %d",idx); } @@ -935,19 +1124,20 @@ 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); + if (size==0) return 0; //get binary from fsk wave - int idx = PyramiddemodFSK(BitStream, size); + int idx = PyramiddemodFSK(BitStream, &size); if (idx < 0){ if (g_debugMode==1){ if (idx == -5) PrintAndLog("DEBUG: Error - not enough samples"); else if (idx == -1) - PrintAndLog("DEBUG: Error - only noise found - no waves"); + PrintAndLog("DEBUG: Error - only noise found"); else if (idx == -2) PrintAndLog("DEBUG: Error - problem during FSK demod"); else if (idx == -3) - PrintAndLog("DEBUG: Error - Second Pyramid preamble not found"); + PrintAndLog("DEBUG: Error - Size not correct: %d", size); else if (idx == -4) PrintAndLog("DEBUG: Error - Pyramid preamble not found"); else @@ -1043,7 +1233,6 @@ int CmdFSKdemodPyramid(const char *Cmd) PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo); } } - //todo - convert hi2, hi, lo to demodbuffer for future sim/clone commands if (g_debugMode){ PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, 128); printDemodBuff(); @@ -1137,8 +1326,7 @@ 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) { @@ -1176,8 +1364,9 @@ 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 (size==0) return 0; + uint8_t dummy = 0; + uint16_t ans = countFC(BitStream, size, &dummy); if (ans==0) { if (g_debugMode) PrintAndLog("DEBUG: No data found"); return 0; @@ -1191,39 +1380,71 @@ int CmdFSKfcDetect(const char *Cmd) 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; + if ((fc1==10 && fc2==8) || (fc1==8 && fc2==5)){ + if (g_debugMode){ + PrintAndLog("Detected Field Clocks: FC/%d, FC/%d - Bit Clock: RF/%d", fc1, fc2, rf1); + return 1; + } + } + if (g_debugMode){ + PrintAndLog("DEBUG: unknown fsk field clock detected"); + PrintAndLog("Detected Field Clocks: FC/%d, FC/%d - Bit Clock: RF/%d", fc1, fc2, rf1); + } + return 0; } -int CmdDetectNRZpskClockRate(const char *Cmd) +//by marshmellow +//attempt to detect the bit clock for PSK modulations +int CmdDetectPSKClockRate(const char *Cmd) { - GetNRZpskClock("",0,0); + GetPskClock("",0,0); return 0; } -int PSKnrzDemod(const char *Cmd) +//by marshmellow +//attempt to detect the bit clock for NRZ modulations +int CmdDetectNRZClockRate(const char *Cmd) { - int invert=0; - int clk=0; - sscanf(Cmd, "%i %i", &clk, &invert); - if (invert != 0 && invert != 1) { - PrintAndLog("Invalid argument: %s", Cmd); - return -1; - } - uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; - 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; - } - PrintAndLog("Tried PSK/NRZ Demod using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen); + GetNrzClock("",0,0); + return 0; +} - //prime demod buffer for output - setDemodBuf(BitStream,BitLen,0); - return errCnt; +//by marshmellow +//attempt to psk1 demod graph buffer +int PSKDemod(const char *Cmd, uint8_t verbose) +{ + int invert=0; + int clk=0; + int maxErr=100; + sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr); + if (clk==1){ + invert=1; + clk=0; + } + 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); + if (BitLen==0) return 0; + int errCnt=0; + errCnt = pskRawDemod(BitStream, &BitLen,&clk,&invert); + if (errCnt > maxErr){ + if (g_debugMode==1) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt); + return -1; + } + 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 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) @@ -1231,9 +1452,9 @@ int CmdIndalaDecode(const char *Cmd) { int ans; if (strlen(Cmd)>0){ - ans = PSKnrzDemod(Cmd); + ans = PSKDemod(Cmd, 0); } else{ //default to RF/32 - ans = PSKnrzDemod("32"); + ans = PSKDemod("32", 0); } if (ans < 0){ @@ -1248,7 +1469,7 @@ int CmdIndalaDecode(const char *Cmd) PrintAndLog("Error2: %d",ans); return -1; } - char showbits[251]; + char showbits[251]={0x00}; if (invert) if (g_debugMode==1) PrintAndLog("Had to invert bits"); @@ -1298,9 +1519,17 @@ 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}; @@ -1309,35 +1538,144 @@ int CmdPskClean(const char *Cmd) setGraphBuf(bitStream, bitLen); 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 -int CmdpskNRZrawDemod(const char *Cmd) +// by marshmellow +// takes 3 arguments - clock, invert, maxErr as integers +// attempts to demodulate nrz only +// prints binary found and saves in demodbuffer for further commands +int CmdNRZrawDemod(const char *Cmd) { - int errCnt; + int invert=0; + int clk=0; + int maxErr=100; + char cmdp = param_getchar(Cmd, 0); + if (strlen(Cmd) > 3 || cmdp == 'h' || cmdp == 'H') { + PrintAndLog("Usage: data nrzrawdemod [clock] <0|1> [maxError]"); + PrintAndLog(" [set clock as integer] optional, if not set, autodetect."); + PrintAndLog(" , 1 for invert output"); + PrintAndLog(" [set maximum allowed errors], default = 100."); + PrintAndLog(""); + PrintAndLog(" sample: data nrzrawdemod = demod a nrz/direct tag from GraphBuffer"); + PrintAndLog(" : data nrzrawdemod 32 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32"); + PrintAndLog(" : data nrzrawdemod 32 1 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32 and inverting data"); + PrintAndLog(" : data nrzrawdemod 1 = demod a nrz/direct tag from GraphBuffer while inverting data"); + PrintAndLog(" : data nrzrawdemod 64 1 0 = demod a nrz/direct tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors"); + + return 0; + } - errCnt = PSKnrzDemod(Cmd); + sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr); + if (clk==1){ + invert=1; + clk=0; + } + if (invert != 0 && invert != 1) { + PrintAndLog("Invalid argument: %s", Cmd); + return 0; + } + uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; + size_t BitLen = getFromGraphBuf(BitStream); + if (BitLen==0) return 0; + int errCnt=0; + errCnt = nrzRawDemod(BitStream, &BitLen, &clk, &invert, maxErr); + if (errCnt > maxErr){ + if (g_debugMode==1) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt); + return 0; + } + 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 0; + } + PrintAndLog("Tried NRZ Demod using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen); + //prime demod buffer for output + setDemodBuf(BitStream,BitLen,0); + + if (errCnt>0){ + PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt); + }else{ + } + PrintAndLog("NRZ demoded bitstream:"); + // Now output the bitstream to the scrollback by line of 16 bits + printDemodBuff(); + return 1; +} + +// by marshmellow +// takes 3 arguments - clock, invert, maxErr as integers +// attempts to demodulate psk only +// prints binary found and saves in demodbuffer for further commands +int CmdPSK1rawDemod(const char *Cmd) +{ + int errCnt; + char cmdp = param_getchar(Cmd, 0); + if (strlen(Cmd) > 3 || cmdp == 'h' || cmdp == 'H') { + PrintAndLog("Usage: data psk1rawdemod [clock] <0|1> [maxError]"); + PrintAndLog(" [set clock as integer] optional, if not set, autodetect."); + PrintAndLog(" , 1 for invert output"); + PrintAndLog(" [set maximum allowed errors], default = 100."); + PrintAndLog(""); + PrintAndLog(" sample: data psk1rawdemod = demod a psk1 tag from GraphBuffer"); + PrintAndLog(" : data psk1rawdemod 32 = demod a psk1 tag from GraphBuffer using a clock of RF/32"); + PrintAndLog(" : data psk1rawdemod 32 1 = demod a psk1 tag from GraphBuffer using a clock of RF/32 and inverting data"); + PrintAndLog(" : data psk1rawdemod 1 = demod a psk1 tag from GraphBuffer while inverting data"); + PrintAndLog(" : data psk1rawdemod 64 1 0 = demod a psk1 tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors"); + return 0; + } + errCnt = PSKDemod(Cmd, 1); //output if (errCnt<0){ + if (g_debugMode) PrintAndLog("Error demoding: %d",errCnt); + return 0; + } + if (errCnt>0){ + PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt); + }else{ + } + PrintAndLog("PSK demoded bitstream:"); + // Now output the bitstream to the scrollback by line of 16 bits + printDemodBuff(); + return 1; +} + +// by marshmellow +// takes same args as cmdpsknrzrawdemod +int CmdPSK2rawDemod(const char *Cmd) +{ + int errCnt=0; + char cmdp = param_getchar(Cmd, 0); + if (strlen(Cmd) > 3 || cmdp == 'h' || cmdp == 'H') { + PrintAndLog("Usage: data psk2rawdemod [clock] <0|1> [maxError]"); + PrintAndLog(" [set clock as integer] optional, if not set, autodetect."); + PrintAndLog(" , 1 for invert output"); + PrintAndLog(" [set maximum allowed errors], default = 100."); + PrintAndLog(""); + PrintAndLog(" sample: data psk2rawdemod = demod a psk2 tag from GraphBuffer, autodetect clock"); + PrintAndLog(" : data psk2rawdemod 32 = demod a psk2 tag from GraphBuffer using a clock of RF/32"); + PrintAndLog(" : data psk2rawdemod 32 1 = demod a psk2 tag from GraphBuffer using a clock of RF/32 and inverting output"); + PrintAndLog(" : data psk2rawdemod 1 = demod a psk2 tag from GraphBuffer, autodetect clock and invert output"); + PrintAndLog(" : data psk2rawdemod 64 1 0 = demod a psk2 tag from GraphBuffer using a clock of RF/64, inverting output and allowing 0 demod errors"); + return 0; + } + errCnt=PSKDemod(Cmd, 1); + if (errCnt<0){ if (g_debugMode) PrintAndLog("Error demoding: %d",errCnt); return 0; } - if (errCnt>0){ - if (g_debugMode){ + psk1TOpsk2(DemodBuffer, DemodBufferLen); + if (errCnt>0){ + if (g_debugMode){ PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt); - PrintAndLog("PSK or NRZ demoded bitstream:"); + PrintAndLog("PSK2 demoded bitstream:"); // Now output the bitstream to the scrollback by line of 16 bits printDemodBuff(); } - }else{ - PrintAndLog("PSK or NRZ demoded bitstream:"); + }else{ + PrintAndLog("PSK2 demoded bitstream:"); // Now output the bitstream to the scrollback by line of 16 bits printDemodBuff(); - return 1; } - return 0; + return 1; } int CmdGrid(const char *Cmd) @@ -1356,7 +1694,7 @@ 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); @@ -1365,7 +1703,7 @@ 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; } @@ -1415,7 +1753,7 @@ 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) @@ -1425,14 +1763,14 @@ 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) @@ -1923,7 +2261,8 @@ 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)"}, + {"askem410xdemod",CmdAskEM410xDemod, 1, "[clock] [invert<0|1>] [maxErr] -- Attempt to demodulate ASK/Manchester tags and output binary (args optional)"}, + {"askmandemod", Cmdaskmandemod, 1, "[clock] [invert<0|1>] [maxErr] -- 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] [invert<0|1>] Biphase decode bin stream in demod buffer (offset = 0|1 bits to shift the decode start)"}, @@ -1951,11 +2290,13 @@ static command_t CommandTable[] = {"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 +/-128"}, + {"nrzdetectclock",CmdDetectNRZClockRate, 1, "Detect ASK, PSK, or NRZ clock rate"}, + {"nrzrawdemod", CmdNRZrawDemod, 1, "[clock] [invert<0|1>] [maxErr] -- Attempt to demodulate nrz tags and output binary (args optional)"}, {"plot", CmdPlot, 1, "Show graph window (hit 'h' in window for keystroke help)"}, - {"pskclean", CmdPskClean, 1, "Attempt to clean psk wave"}, - {"pskdetectclock",CmdDetectNRZpskClockRate, 1, "Detect ASK, PSK, or NRZ clock rate"}, - {"pskindalademod",CmdIndalaDecode, 1, "[clock] [invert<0|1>] -- Attempt to demodulate psk indala tags and output ID binary & hex (args optional)"}, - {"psknrzrawdemod",CmdpskNRZrawDemod, 1, "[clock] [invert<0|1>] -- Attempt to demodulate psk or nrz tags and output binary (args optional)"}, + {"pskdetectclock",CmdDetectPSKClockRate, 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)"}, + {"psk1rawdemod", CmdPSK1rawDemod, 1, "[clock] [invert<0|1>] [maxErr] -- Attempt to demodulate psk1 tags and output binary (args optional)"}, + {"psk2rawdemod", CmdPSK2rawDemod, 1, "[clock] [invert<0|1>] [maxErr] -- 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"},