X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/a6293168da03b547d7cb283f94d8e7aa7109069a..1b3c567df229f873ed93e0148c7781a2ee74f804:/client/cmddata.c?ds=sidebyside diff --git a/client/cmddata.c b/client/cmddata.c index bce5d2ce..4256aae2 100644 --- a/client/cmddata.c +++ b/client/cmddata.c @@ -21,24 +21,42 @@ #include "cmdmain.h" #include "cmddata.h" #include "lfdemod.h" +#include "usb_cmd.h" +#include "crc.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]; + if (buff == NULL) + return; + + if ( size >= MAX_DEMOD_BUF_LEN) + size = MAX_DEMOD_BUF_LEN; + + 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() +void printDemodBuff(void) { uint32_t i = 0; int bitLen = DemodBufferLen; @@ -47,29 +65,55 @@ 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], - 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]); + 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 CmdPrintDemodBuff(const char *Cmd) +{ + char hex; + char printBuff[512]={0x00}; + uint8_t numBits = DemodBufferLen & 0xFFF0; + sscanf(Cmd, "%c", &hex); + if (hex == 'h'){ + PrintAndLog("Usage: data printdemodbuffer [x]"); + PrintAndLog("Options: "); + PrintAndLog(" h This help"); + PrintAndLog(" x output in hex (omit for binary output)"); + return 0; + } + if (hex == 'x'){ + numBits = binarraytohex(printBuff, (char *)DemodBuffer, numBits); + if (numBits==0) return 0; + PrintAndLog("DemodBuffer: %s",printBuff); + } else { + printDemodBuff(); + } + return 1; +} int CmdAmp(const char *Cmd) { int i, rising, falling; @@ -114,20 +158,19 @@ int CmdAmp(const char *Cmd) * Updates the Graph trace with 0/1 values * * Arguments: - * c : 0 or 1 + * c : 0 or 1 (or invert) */ - //this method is dependant on all highs and lows to be the same(or clipped) this creates issues[marshmellow] it also ignores the clock + //this method ignores the clock + + //this function strictly converts highs and lows to 1s and 0s for each sample in the graphbuffer int Cmdaskdemod(const char *Cmd) { int i; int c, high = 0, low = 0; - // TODO: complain if we do not give 2 arguments here ! - // (AL - this doesn't make sense! we're only using one argument!!!) sscanf(Cmd, "%i", &c); - /* Detect high and lows and clock */ - // (AL - clock???) + /* Detect high and lows */ for (i = 0; i < GraphTraceLen; ++i) { if (GraphBuffer[i] > high) @@ -157,9 +200,9 @@ int Cmdaskdemod(const char *Cmd) * down) */ //[marhsmellow] change == to >= for high and <= for low for fuzz - if ((GraphBuffer[i] == high) && (GraphBuffer[i - 1] == c)) { + if ((GraphBuffer[i] >= high) && (GraphBuffer[i - 1] == c)) { GraphBuffer[i] = 1 - c; - } else if ((GraphBuffer[i] == low) && (GraphBuffer[i - 1] == (1 - c))){ + } else if ((GraphBuffer[i] <= low) && (GraphBuffer[i - 1] == (1 - c))){ GraphBuffer[i] = c; } else { /* No transition */ @@ -170,6 +213,23 @@ int Cmdaskdemod(const char *Cmd) return 0; } +//this function strictly converts >1 to 1 and <1 to 0 for each sample in the graphbuffer +int CmdGetBitStream(const char *Cmd) +{ + int i; + CmdHpf(Cmd); + for (i = 0; i < GraphTraceLen; i++) { + if (GraphBuffer[i] >= 1) { + GraphBuffer[i] = 1; + } else { + GraphBuffer[i] = 0; + } + } + RepaintGraphWindow(); + return 0; +} + + //by marshmellow void printBitStream(uint8_t BitStream[], uint32_t bitLen) { @@ -179,113 +239,254 @@ void printBitStream(uint8_t BitStream[], uint32_t bitLen) return; } if (bitLen>512) bitLen=512; - for (i = 0; i <= (bitLen-16); i+=16) { + + // 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], - BitStream[i+1], - BitStream[i+2], - BitStream[i+3], - BitStream[i+4], - BitStream[i+5], - BitStream[i+6], - BitStream[i+7], - BitStream[i+8], - BitStream[i+9], - BitStream[i+10], - BitStream[i+11], - BitStream[i+12], - BitStream[i+13], - BitStream[i+14], - BitStream[i+15]); + BitStream[i], + BitStream[i+1], + BitStream[i+2], + BitStream[i+3], + BitStream[i+4], + BitStream[i+5], + BitStream[i+6], + BitStream[i+7], + BitStream[i+8], + BitStream[i+9], + BitStream[i+10], + BitStream[i+11], + BitStream[i+12], + BitStream[i+13], + BitStream[i+14], + BitStream[i+15] + ); } 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, - 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))); - } +//print 64 bit EM410x ID in multiple formats +void printEM410x(uint32_t hi, uint64_t id) +{ + if (id || hi){ + uint64_t iii=1; + 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))); } - //output em id - PrintAndLog("EM TAG ID : %010llx", id); - PrintAndLog("Unique TAG ID: %010llx", id2lo); //id2hi, - PrintAndLog("DEZ 8 : %08lld",id & 0xFFFFFF); - PrintAndLog("DEZ 10 : %010lld",id & 0xFFFFFF); - PrintAndLog("DEZ 5.5 : %05lld.%05lld",(id>>16LL) & 0xFFFF,(id & 0xFFFF)); - PrintAndLog("DEZ 3.5A : %03lld.%05lld",(id>>32ll),(id & 0xFFFF)); - 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; -} + if (hi){ + //output 88 bit em id + PrintAndLog("\nEM TAG ID : %06x%016llx", hi, id); + } else{ + //output 40 bit em id + PrintAndLog("\nEM TAG ID : %010llx", id); + PrintAndLog("Unique TAG ID : %010llx", id2lo); + PrintAndLog("\nPossible de-scramble patterns"); + PrintAndLog("HoneyWell IdentKey {"); + PrintAndLog("DEZ 8 : %08lld",id & 0xFFFFFF); + PrintAndLog("DEZ 10 : %010lld",id & 0xFFFFFFFF); + PrintAndLog("DEZ 5.5 : %05lld.%05lld",(id>>16LL) & 0xFFFF,(id & 0xFFFF)); + PrintAndLog("DEZ 3.5A : %03lld.%05lld",(id>>32ll),(id & 0xFFFF)); + PrintAndLog("DEZ 3.5B : %03lld.%05lld",(id & 0xFF000000) >> 24,(id & 0xFFFF)); + PrintAndLog("DEZ 3.5C : %03lld.%05lld",(id & 0xFF0000) >> 16,(id & 0xFFFF)); + PrintAndLog("DEZ 14/IK2 : %014lld",id); + PrintAndLog("DEZ 15/IK3 : %015lld",id2lo); + PrintAndLog("DEZ 20/ZK : %02lld%02lld%02lld%02lld%02lld%02lld%02lld%02lld%02lld%02lld", + (id2lo & 0xf000000000) >> 36, + (id2lo & 0x0f00000000) >> 32, + (id2lo & 0x00f0000000) >> 28, + (id2lo & 0x000f000000) >> 24, + (id2lo & 0x0000f00000) >> 20, + (id2lo & 0x00000f0000) >> 16, + (id2lo & 0x000000f000) >> 12, + (id2lo & 0x0000000f00) >> 8, + (id2lo & 0x00000000f0) >> 4, + (id2lo & 0x000000000f) + ); + uint64_t paxton = (((id>>32) << 24) | (id & 0xffffff)) + 0x143e00; + PrintAndLog("}\nOther : %05lld_%03lld_%08lld",(id&0xFFFF),((id>>16LL) & 0xFF),(id & 0xFFFFFF)); + PrintAndLog("Pattern Paxton : %lld [0x%llX]", paxton, paxton); + + uint32_t p1id = (id & 0xFFFFFF); + uint8_t arr[32] = {0x00}; + int i =0; + int j = 23; + for (; i < 24; ++i, --j ){ + arr[i] = (p1id >> i) & 1; + } -//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(DemodBuffer,DemodBufferLen); - printEM410x(id); - if (id>0) return 1; - return 0; + uint32_t p1 = 0; + + p1 |= arr[23] << 21; + p1 |= arr[22] << 23; + p1 |= arr[21] << 20; + p1 |= arr[20] << 22; + + p1 |= arr[19] << 18; + p1 |= arr[18] << 16; + p1 |= arr[17] << 19; + p1 |= arr[16] << 17; + + p1 |= arr[15] << 13; + p1 |= arr[14] << 15; + p1 |= arr[13] << 12; + p1 |= arr[12] << 14; + + p1 |= arr[11] << 6; + p1 |= arr[10] << 2; + p1 |= arr[9] << 7; + p1 |= arr[8] << 1; + + p1 |= arr[7] << 0; + p1 |= arr[6] << 8; + p1 |= arr[5] << 11; + p1 |= arr[4] << 3; + + p1 |= arr[3] << 10; + p1 |= arr[2] << 4; + p1 |= arr[1] << 5; + p1 |= arr[0] << 9; + PrintAndLog("Pattern 1 : %d [0x%X]", p1, p1); + + uint16_t sebury1 = id & 0xFFFF; + uint8_t sebury2 = (id >> 16) & 0x7F; + uint32_t sebury3 = id & 0x7FFFFF; + PrintAndLog("Pattern Sebury : %d %d %d [0x%X 0x%X 0x%X]", sebury1, sebury2, sebury3, sebury1, sebury2, sebury3); + } + } + return; } +int AskEm410xDemod(const char *Cmd, uint32_t *hi, uint64_t *lo) +{ + int ans = ASKmanDemod(Cmd, FALSE, FALSE); + if (!ans) return 0; + + size_t idx=0; + if (Em410xDecode(DemodBuffer,(size_t *) &DemodBufferLen, &idx, hi, lo)){ + if (g_debugMode){ + PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, DemodBufferLen); + printDemodBuff(); + } + return 1; + } + return 0; +} //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 Cmdaskmandemod(const char *Cmd) +int CmdAskEM410xDemod(const char *Cmd) +{ + char cmdp = param_getchar(Cmd, 0); + if (strlen(Cmd) > 10 || 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; + } + uint32_t hi = 0; + uint64_t lo = 0; + if (AskEm410xDemod(Cmd, &hi, &lo)) { + PrintAndLog("EM410x pattern found: "); + printEM410x(hi, lo); + return 1; + } + return 0; +} + +int ASKmanDemod(const char *Cmd, bool verbose, bool emSearch) { int invert=0; int clk=0; + int maxErr=100; + 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; } - + if (clk==1){ + invert=1; + clk=0; + } size_t BitLen = getFromGraphBuf(BitStream); - // PrintAndLog("DEBUG: Bitlen from grphbuff: %d",BitLen); - int errCnt=0; - errCnt = askmandemod(BitStream, &BitLen,&clk,&invert); + if (g_debugMode) PrintAndLog("DEBUG: Bitlen from graphbuffer: %d",BitLen); + + if (BitLen==0) return 0; + + int errCnt = askmandemod(BitStream, &BitLen, &clk, &invert, maxErr); + 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) PrintAndLog("DEBUG: 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 (verbose || g_debugMode) PrintAndLog("\nUsing Clock: %d - Invert: %d - Bits Found: %d",clk,invert,BitLen); + if (errCnt>0){ - PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt); + if (verbose || g_debugMode) PrintAndLog("DEBUG: Errors during Demoding (shown as 77 in bit stream): %d",errCnt); } - PrintAndLog("ASK/Manchester decoded bitstream:"); + + if (verbose || g_debugMode) PrintAndLog("ASK/Manchester decoded bitstream:"); // Now output the bitstream to the scrollback by line of 16 bits - setDemodBuf(BitStream,BitLen); - printDemodBuff(); + setDemodBuf(BitStream,BitLen,0); + if (verbose || g_debugMode) printDemodBuff(); uint64_t lo =0; - lo = Em410xDecode(BitStream,BitLen); - if (lo>0){ - //set GraphBuffer for clone or sim command - PrintAndLog("EM410x pattern found: "); - printEM410x(lo); - return 1; + uint32_t hi =0; + size_t idx=0; + if (emSearch){ + if (Em410xDecode(BitStream, &BitLen, &idx, &hi, &lo)){ + //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(); + } + if (verbose) PrintAndLog("EM410x pattern found: "); + if (verbose) printEM410x(hi, lo); + return 1; + } } - //if (BitLen>16) return 1; - return 0; + return 1; +} + +//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) +{ + char cmdp = param_getchar(Cmd, 0); + if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') { + PrintAndLog("Usage: data rawdemod am [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 rawdemod am = demod an ask/manchester tag from GraphBuffer"); + PrintAndLog(" : data rawdemod am 32 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32"); + PrintAndLog(" : data rawdemod am 32 1 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32 and inverting data"); + PrintAndLog(" : data rawdemod am 1 = demod an ask/manchester tag from GraphBuffer while inverting data"); + PrintAndLog(" : data rawdemod am 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; + } + return ASKmanDemod(Cmd, TRUE, TRUE); } //by marshmellow @@ -296,6 +497,17 @@ int Cmdmandecoderaw(const char *Cmd) int i =0; int errCnt=0; size_t size=0; + size_t maxErr = 20; + 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 (;i1 || low <0 ){ - PrintAndLog("Error: please raw demod the wave first then mancheseter raw decode"); + PrintAndLog("Error: please raw demod the wave first then manchester raw decode"); return 0; } size=i; errCnt=manrawdecode(BitStream, &size); - if (errCnt>=20){ + if (errCnt>=maxErr){ PrintAndLog("Too many errors: %d",errCnt); return 0; } @@ -317,9 +529,14 @@ 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); + uint32_t hi = 0; + size_t idx=0; + if (Em410xDecode(BitStream, &size, &idx, &hi, &id)){ + //need to adjust to set bitstream back to manchester encoded data + //setDemodBuf(BitStream, size, idx); + + printEM410x(hi, id); + } } return 1; } @@ -327,7 +544,8 @@ 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 @@ -335,105 +553,367 @@ int Cmdmandecoderaw(const char *Cmd) // width waves vs small width waves to help the decode positioning) or askbiphdemod int CmdBiphaseDecodeRaw(const char *Cmd) { - int i = 0; - int errCnt=0; size_t size=0; - int offset=0; - int high=0, low=0; - sscanf(Cmd, "%i", &offset); - uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; - //get graphbuffer & high and low - for (;ihigh)high=DemodBuffer[i]; - else if(DemodBuffer[i] 3 || cmdp == 'h' || cmdp == 'H') { + PrintAndLog("Usage: data biphaserawdecode [offset] [invert] [maxErr]"); + PrintAndLog(" Converts 10 or 01 to 1 and 11 or 00 to 0"); + PrintAndLog(" --must have binary sequence in demodbuffer (run data askrawdemod first)"); + PrintAndLog(" --invert for Conditional Dephase Encoding (CDP) AKA Differential Manchester"); + 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(" [maxErr int], set max errors tolerated - default=20"); + 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; } - if (high>1 || low <0){ - PrintAndLog("Error: please raw demod the wave first then decode"); + sscanf(Cmd, "%i %i %i", &offset, &invert, &maxErr); + if (DemodBufferLen==0){ + PrintAndLog("DemodBuffer Empty - run 'data rawdemod ar' first"); return 0; } - size=i; - errCnt=BiphaseRawDecode(BitStream, &size, offset); - if (errCnt>=20){ + uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; + memcpy(BitStream, DemodBuffer, DemodBufferLen); + size = DemodBufferLen; + errCnt=BiphaseRawDecode(BitStream, &size, offset, invert); + if (errCnt<0){ + PrintAndLog("Error during decode:%d", errCnt); + return 0; + } + if (errCnt>maxErr){ PrintAndLog("Too many errors attempting to decode: %d",errCnt); return 0; } - PrintAndLog("Biphase Decoded using offset: %d - # errors:%d - data:",offset,errCnt); + + if (errCnt>0){ + PrintAndLog("# Errors found during Demod (shown as 77 in bit stream): %d",errCnt); + } + PrintAndLog("Biphase Decoded using offset: %d - # invert:%d - data:",offset,invert); printBitStream(BitStream, size); - PrintAndLog("\nif bitstream does not look right try offset=1"); + + if (offset) setDemodBuf(DemodBuffer,DemodBufferLen-offset, offset); //remove first bit from raw demod return 1; } +// set demod buffer back to raw after biphase demod +void setBiphasetoRawDemodBuf(uint8_t *BitStream, size_t size) +{ + uint8_t rawStream[512]={0x00}; + size_t i=0; + uint8_t curPhase=0; + if (size > 256) { + PrintAndLog("ERROR - Biphase Demod Buffer overrun"); + return; + } + for (size_t idx=0; idx0){ - PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt); + //output + if (errCnt>0 && (verbose || g_debugMode)){ + 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); - + if (verbose || g_debugMode){ + PrintAndLog("ASK demoded bitstream:"); + // Now output the bitstream to the scrollback by line of 16 bits + printBitStream(BitStream,BitLen); + } return 1; } -int CmdAutoCorr(const char *Cmd) +//by marshmellow +// - ASK Demod then Biphase decode GraphBuffer samples +int ASKbiphaseDemod(const char *Cmd, bool verbose) { - static int CorrelBuffer[MAX_GRAPH_TRACE_LEN]; + //ask raw demod GraphBuffer first + int offset=0, clk=0, invert=0, maxErr=0, ans=0; + ans = sscanf(Cmd, "%i %i %i %i", &offset, &clk, &invert, &maxErr); - int window = atoi(Cmd); + if (ans>0) + ans = ASKrawDemod(Cmd+2, FALSE); + else + ans = ASKrawDemod(Cmd, FALSE); + if (!ans) { + if (g_debugMode || verbose) PrintAndLog("Error AskrawDemod: %d", ans); + return 0; + } - if (window == 0) { - PrintAndLog("needs a window"); + //attempt to Biphase decode DemodBuffer + size_t size = DemodBufferLen; + uint8_t BitStream[MAX_DEMOD_BUF_LEN]; + memcpy(BitStream, DemodBuffer, DemodBufferLen); + + int errCnt = BiphaseRawDecode(BitStream, &size, offset, invert); + if (errCnt < 0){ + if (g_debugMode || verbose) PrintAndLog("Error BiphaseRawDecode: %d", errCnt); + return 0; + } + if (errCnt > maxErr) { + if (g_debugMode || verbose) PrintAndLog("Error BiphaseRawDecode too many errors: %d", errCnt); return 0; } - if (window >= GraphTraceLen) { - PrintAndLog("window must be smaller than trace (%d samples)", - GraphTraceLen); + //success set DemodBuffer and return + setDemodBuf(BitStream, size, 0); + if (g_debugMode || verbose){ + PrintAndLog("Biphase Decoded using offset: %d - # errors:%d - data:",offset,errCnt); + printDemodBuff(); + } + return 1; +} +//by marshmellow - see ASKbiphaseDemod +int Cmdaskbiphdemod(const char *Cmd) +{ + char cmdp = param_getchar(Cmd, 0); + if (strlen(Cmd) > 12 || cmdp == 'h' || cmdp == 'H') { + PrintAndLog("Usage: data rawdemod ab [offset] [clock] [maxError] "); + PrintAndLog(" [offset], offset to begin biphase, default=0"); + PrintAndLog(" [set clock as integer] optional, if not set, autodetect"); + PrintAndLog(" , 1 to invert output"); + PrintAndLog(" [set maximum allowed errors], default = 100"); + PrintAndLog(" , 'a' to attempt demod with ask amplification, default = no amp"); + PrintAndLog(" NOTE: can be entered as second or third argument"); + PrintAndLog(" NOTE: can be entered as first, second or last argument"); + PrintAndLog(" NOTE: any other arg must have previous args set to work"); + PrintAndLog(""); + PrintAndLog(" NOTE: --invert for Conditional Dephase Encoding (CDP) AKA Differential Manchester"); + PrintAndLog(""); + PrintAndLog(" sample: data rawdemod ab = demod an ask/biph tag from GraphBuffer"); + PrintAndLog(" : data rawdemod ab a = demod an ask/biph tag from GraphBuffer, amplified"); + PrintAndLog(" : data rawdemod ab 1 32 = demod an ask/biph tag from GraphBuffer using an offset of 1 and a clock of RF/32"); + PrintAndLog(" : data rawdemod ab 0 32 1 = demod an ask/biph tag from GraphBuffer using a clock of RF/32 and inverting data"); + PrintAndLog(" : data rawdemod ab 0 1 = demod an ask/biph tag from GraphBuffer while inverting data"); + PrintAndLog(" : data rawdemod ab 0 64 1 0 = demod an ask/biph tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors"); + PrintAndLog(" : data rawdemod ab 0 64 1 0 a = demod an ask/biph tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors, and amp"); return 0; } + return ASKbiphaseDemod(Cmd, TRUE); +} - PrintAndLog("performing %d correlations", GraphTraceLen - window); +//by marshmellow +//attempts to demodulate and identify a G_Prox_II verex/chubb card +//WARNING: if it fails during some points it will destroy the DemodBuffer data +// but will leave the GraphBuffer intact. +//if successful it will push askraw data back to demod buffer ready for emulation +int CmdG_Prox_II_Demod(const char *Cmd) +{ + if (!ASKbiphaseDemod(Cmd, FALSE)){ + if (g_debugMode) PrintAndLog("ASKbiphaseDemod failed 1st try"); + return 0; + } + size_t size = DemodBufferLen; + //call lfdemod.c demod for gProxII + int ans = gProxII_Demod(DemodBuffer, &size); + if (ans < 0){ + if (g_debugMode) PrintAndLog("Error gProxII_Demod"); + return 0; + } + //got a good demod + uint32_t ByteStream[65] = {0x00}; + uint8_t xorKey=0; + uint8_t keyCnt=0; + uint8_t bitCnt=0; + uint8_t ByteCnt=0; + size_t startIdx = ans + 6; //start after preamble + for (size_t idx = 0; idx>2; + uint32_t FC = 0; + uint32_t Card = 0; + uint32_t raw1 = bytebits_to_byte(DemodBuffer+ans,32); + uint32_t raw2 = bytebits_to_byte(DemodBuffer+ans+32, 32); + uint32_t raw3 = bytebits_to_byte(DemodBuffer+ans+64, 32); + + if (fmtLen==36){ + FC = ((ByteStream[3] & 0x7F)<<7) | (ByteStream[4]>>1); + Card = ((ByteStream[4]&1)<<19) | (ByteStream[5]<<11) | (ByteStream[6]<<3) | (ByteStream[7]>>5); + PrintAndLog("G-Prox-II Found: FmtLen %d, FC %d, Card %d",fmtLen,FC,Card); + } else if(fmtLen==26){ + FC = ((ByteStream[3] & 0x7F)<<1) | (ByteStream[4]>>7); + Card = ((ByteStream[4]&0x7F)<<9) | (ByteStream[5]<<1) | (ByteStream[6]>>7); + PrintAndLog("G-Prox-II Found: FmtLen %d, FC %d, Card %d",fmtLen,FC,Card); + } else { + PrintAndLog("Unknown G-Prox-II Fmt Found: FmtLen %d",fmtLen); + } + PrintAndLog("Raw: %08x%08x%08x", raw1,raw2,raw3); + setDemodBuf(DemodBuffer+ans, 96, 0); + return 1; +} + +//by marshmellow - see ASKrawDemod +int Cmdaskrawdemod(const char *Cmd) +{ + char cmdp = param_getchar(Cmd, 0); + if (strlen(Cmd) > 12 || cmdp == 'h' || cmdp == 'H') { + PrintAndLog("Usage: data rawdemod ar [clock] [maxError] [amplify]"); + PrintAndLog(" [set clock as integer] optional, if not set, autodetect"); + PrintAndLog(" , 1 to invert output"); + PrintAndLog(" [set maximum allowed errors], default = 100"); + PrintAndLog(" , 'a' to attempt demod with ask amplification, default = no amp"); + PrintAndLog(""); + PrintAndLog(" sample: data rawdemod ar = demod an ask tag from GraphBuffer"); + PrintAndLog(" : data rawdemod ar a = demod an ask tag from GraphBuffer, amplified"); + PrintAndLog(" : data rawdemod ar 32 = demod an ask tag from GraphBuffer using a clock of RF/32"); + PrintAndLog(" : data rawdemod ar 32 1 = demod an ask tag from GraphBuffer using a clock of RF/32 and inverting data"); + PrintAndLog(" : data rawdemod ar 1 = demod an ask tag from GraphBuffer while inverting data"); + PrintAndLog(" : data rawdemod ar 64 1 0 = demod an ask tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors"); + PrintAndLog(" : data rawdemod ar 64 1 0 a = demod an ask tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors, and amp"); + return 0; + } + return ASKrawDemod(Cmd, TRUE); +} +int AutoCorrelate(int window, bool SaveGrph, bool verbose) +{ + static int CorrelBuffer[MAX_GRAPH_TRACE_LEN]; + size_t Correlation = 0; + int maxSum = 0; + int lastMax = 0; + if (verbose) PrintAndLog("performing %d correlations", GraphTraceLen - window); for (int i = 0; i < GraphTraceLen - window; ++i) { int sum = 0; for (int j = 0; j < window; ++j) { sum += (GraphBuffer[j]*GraphBuffer[i + j]) / 256; } CorrelBuffer[i] = sum; + if (sum >= maxSum-100 && sum <= maxSum+100){ + //another max + Correlation = i-lastMax; + lastMax = i; + if (sum > maxSum) maxSum = sum; + } else if (sum > maxSum){ + maxSum=sum; + lastMax = i; + } } - GraphTraceLen = GraphTraceLen - window; - memcpy(GraphBuffer, CorrelBuffer, GraphTraceLen * sizeof (int)); + if (Correlation==0){ + //try again with wider margin + for (int i = 0; i < GraphTraceLen - window; i++){ + if (CorrelBuffer[i] >= maxSum-(maxSum*0.05) && CorrelBuffer[i] <= maxSum+(maxSum*0.05)){ + //another max + Correlation = i-lastMax; + lastMax = i; + //if (CorrelBuffer[i] > maxSum) maxSum = sum; + } + } + } + if (verbose && Correlation > 0) PrintAndLog("Possible Correlation: %d samples",Correlation); - RepaintGraphWindow(); + if (SaveGrph){ + GraphTraceLen = GraphTraceLen - window; + memcpy(GraphBuffer, CorrelBuffer, GraphTraceLen * sizeof (int)); + RepaintGraphWindow(); + } + return Correlation; +} + +int usage_data_autocorr(void) +{ + //print help + PrintAndLog("Usage: data autocorr [window] [g]"); + PrintAndLog("Options: "); + PrintAndLog(" h This help"); + PrintAndLog(" [window] window length for correlation - default = 4000"); + PrintAndLog(" g save back to GraphBuffer (overwrite)"); return 0; } +int CmdAutoCorr(const char *Cmd) +{ + char cmdp = param_getchar(Cmd, 0); + if (cmdp == 'h' || cmdp == 'H') + return usage_data_autocorr(); + int window = 4000; //set default + char grph=0; + bool updateGrph = FALSE; + sscanf(Cmd, "%i %c", &window, &grph); + + if (window >= GraphTraceLen) { + PrintAndLog("window must be smaller than trace (%d samples)", + GraphTraceLen); + return 0; + } + if (grph == 'g') updateGrph=TRUE; + return AutoCorrelate(window, updateGrph, TRUE); +} + int CmdBitsamples(const char *Cmd) { int cnt = 0; @@ -479,7 +959,7 @@ int CmdBitstream(const char *Cmd) } /* Get our clock */ - clock = GetClock(Cmd, high, 1); + clock = GetAskClock(Cmd, high, 1); gtl = ClearGraph(0); bit = 0; @@ -511,10 +991,6 @@ 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(); @@ -538,56 +1014,213 @@ 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; +} + +//by marshmellow +//use large jumps in read samples to identify edges of waves and then amplify that wave to max +//similar to dirtheshold, threshold, and askdemod commands +//takes a threshold length which is the measured length between two samples then determines an edge +int CmdAskEdgeDetect(const char *Cmd) +{ + int thresLen = 25; + sscanf(Cmd, "%i", &thresLen); + int shift = 127; + int shiftedVal=0; + for(int i = 1; i=thresLen) //large jump up + shift=127; + else if(GraphBuffer[i]-GraphBuffer[i-1]<=-1*thresLen) //large jump down + shift=-127; + + shiftedVal=GraphBuffer[i]+shift; + + if (shiftedVal>127) + shiftedVal=127; + else if (shiftedVal<-127) + shiftedVal=-127; + GraphBuffer[i-1] = shiftedVal; + } + RepaintGraphWindow(); + //CmdNorm(""); + return 0; +} /* Print our clock rate */ // uses data from graphbuffer +// adjusted to take char parameter for type of modulation to find the clock - by marshmellow. int CmdDetectClockRate(const char *Cmd) { - GetClock("",0,0); - //int clock = DetectASKClock(0); - //PrintAndLog("Auto-detected clock rate: %d", clock); - return 0; + char cmdp = param_getchar(Cmd, 0); + if (strlen(Cmd) > 3 || strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') { + PrintAndLog("Usage: data detectclock [modulation]"); + PrintAndLog(" [modulation as char], specify the modulation type you want to detect the clock of"); + PrintAndLog(" 'a' = ask, 'f' = fsk, 'n' = nrz/direct, 'p' = psk"); + PrintAndLog(""); + PrintAndLog(" sample: data detectclock a = detect the clock of an ask modulated wave in the GraphBuffer"); + PrintAndLog(" data detectclock f = detect the clock of an fsk modulated wave in the GraphBuffer"); + PrintAndLog(" data detectclock p = detect the clock of an psk modulated wave in the GraphBuffer"); + PrintAndLog(" data detectclock n = detect the clock of an nrz/direct modulated wave in the GraphBuffer"); + } + int ans=0; + if (cmdp == 'a'){ + ans = GetAskClock("", true, false); + } else if (cmdp == 'f'){ + ans = GetFskClock("", true, false); + } else if (cmdp == 'n'){ + ans = GetNrzClock("", true, false); + } else if (cmdp == 'p'){ + ans = GetPskClock("", true, false); + } else { + PrintAndLog ("Please specify a valid modulation to detect the clock of - see option h for help"); + } + return ans; } //by marshmellow //fsk raw demod and print binary -//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) +//takes 4 arguments - Clock, invert, fchigh, fclow +//defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a)) +int FSKrawDemod(const char *Cmd, bool verbose) { //raw fsk demod no manchester decoding no start bit finding just get binary from wave //set defaults - int rfLen = 50; - int invert=0; - int fchigh=10; - int fclow=8; + 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; + invert = 1; //if invert option only is used + 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); - int size = fskdemod(BitStream,BitLen,(uint8_t)rfLen,(uint8_t)invert,(uint8_t)fchigh,(uint8_t)fclow); + if (BitLen==0) return 0; + //get field clock lengths + uint16_t fcs=0; + if (fchigh==0 || fclow == 0){ + fcs = countFC(BitStream, BitLen, 1); + 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; + } + if (verbose) 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 - printBitStream(BitStream,size); + if (verbose) { + PrintAndLog("FSK decoded bitstream:"); + printBitStream(BitStream,size); + } + + return 1; } else{ - PrintAndLog("no FSK data found"); + if (verbose) PrintAndLog("no FSK data found"); } return 0; } +//by marshmellow +//fsk raw demod and print binary +//takes 4 arguments - Clock, invert, fchigh, fclow +//defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a)) +int CmdFSKrawdemod(const char *Cmd) +{ + char cmdp = param_getchar(Cmd, 0); + if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') { + PrintAndLog("Usage: data rawdemod fs [clock] [fchigh] [fclow]"); + PrintAndLog(" [set clock as integer] optional, omit for autodetect."); + PrintAndLog(" , 1 for invert output, can be used even if the clock is omitted"); + PrintAndLog(" [fchigh], larger field clock length, omit for autodetect"); + PrintAndLog(" [fclow], small field clock length, omit for autodetect"); + PrintAndLog(""); + PrintAndLog(" sample: data rawdemod fs = demod an fsk tag from GraphBuffer using autodetect"); + PrintAndLog(" : data rawdemod fs 32 = demod an fsk tag from GraphBuffer using a clock of RF/32, autodetect fc"); + PrintAndLog(" : data rawdemod fs 1 = demod an fsk tag from GraphBuffer using autodetect, invert output"); + PrintAndLog(" : data rawdemod fs 32 1 = demod an fsk tag from GraphBuffer using a clock of RF/32, invert output, autodetect fc"); + PrintAndLog(" : data rawdemod fs 64 0 8 5 = demod an fsk1 RF/64 tag from GraphBuffer"); + PrintAndLog(" : data rawdemod fs 50 0 10 8 = demod an fsk2 RF/50 tag from GraphBuffer"); + PrintAndLog(" : data rawdemod fs 50 1 10 8 = demod an fsk2a RF/50 tag from GraphBuffer"); + return 0; + } + return FSKrawDemod(Cmd, TRUE); +} + //by marshmellow (based on existing demod + holiman's refactor) //HID Prox demod - FSK RF/50 with preamble of 00011101 (then manchester encoded) //print full HID Prox ID and some bit format details if found @@ -598,27 +1231,40 @@ 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 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; 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; @@ -631,10 +1277,6 @@ int CmdFSKdemodHID(const char *Cmd) 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); @@ -645,10 +1287,10 @@ 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); } @@ -656,10 +1298,62 @@ 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); + if (BitLen==0) return 0; + //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; + 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); + + PrintAndLog("Paradox TAG ID: %x%08x - FC: %d - Card: %d - Checksum: %02x - RAW: %08x%08x%08x", + hi>>10, (hi & 0x3)<<26 | (lo>>10), fc, cardnum, (lo>>2) & 0xFF, rawHi2, rawHi, rawLo); + setDemodBuf(BitStream,BitLen,idx); + if (g_debugMode){ + PrintAndLog("DEBUG: idx: %d, len: %d, Printing Demod Buffer:", idx, BitLen); + printDemodBuff(); + } + return 1; } //by marshmellow @@ -670,21 +1364,40 @@ 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; + //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); + if (BitLen==0) return 0; + //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 @@ -696,7 +1409,10 @@ 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]); @@ -710,14 +1426,269 @@ int CmdFSKdemodIO(const char *Cmd) uint8_t version = bytebits_to_byte(BitStream+idx+27,8); //14,4 uint8_t facilitycode = bytebits_to_byte(BitStream+idx+18,8) ; uint16_t number = (bytebits_to_byte(BitStream+idx+36,8)<<8)|(bytebits_to_byte(BitStream+idx+45,8)); //36,9 - PrintAndLog("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++]; + uint8_t crc = bytebits_to_byte(BitStream+idx+54,8); + uint16_t calccrc = 0; + + for (uint8_t i=1; i<6; ++i){ + calccrc += bytebits_to_byte(BitStream+idx+9*i,8); + //PrintAndLog("%d", calccrc); + } + calccrc &= 0xff; + calccrc = 0xff - calccrc; + + char *crcStr = (crc == calccrc) ? "crc ok": "!crc"; + + PrintAndLog("IO Prox XSF(%02d)%02x:%05d (%08x%08x) [%02x %s]",version,facilitycode,number,code,code2, crc, crcStr); + setDemodBuf(BitStream,64,idx); + if (g_debugMode){ + PrintAndLog("DEBUG: idx: %d, Len: %d, Printing demod buffer:",idx,64); + printDemodBuff(); + } + return 1; +} - DemodBufferLen=64; +//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); + if (size==0) return 0; + + //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 == -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: %08x%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: %08x%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: %08x%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); + if (size==0) return 0; + + //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 bytes for checksum calc + uint8_t checksum = bytebits_to_byte(BitStream + idx + 120, 8); + uint8_t csBuff[14] = {0x00}; + for (uint8_t i = 0; i < 13; i++){ + csBuff[i] = bytebits_to_byte(BitStream + idx + 16 + (i*8), 8); + } + //check checksum calc + //checksum calc thanks to ICEMAN!! + uint32_t checkCS = CRC8Maxim(csBuff,13); + + //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: %08x%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: %08x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo); + } + } + if (checksum == checkCS) + PrintAndLog("Checksum %02x passed", checksum); + else + PrintAndLog("Checksum %02x failed - should have been %02x", checksum, checkCS); + + 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[] = { @@ -738,7 +1709,7 @@ 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; @@ -804,8 +1775,7 @@ 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) { @@ -837,53 +1807,80 @@ int CmdFSKdemod(const char *Cmd) //old CmdFSKdemod needs updating return 0; } -int CmdDetectNRZpskClockRate(const char *Cmd) +//by marshmellow +//attempt to psk1 demod graph buffer +int PSKDemod(const char *Cmd, bool verbose) { - GetNRZpskClock("",0,0); - return 0; -} - -int PSKnrzDemod(const char *Cmd){ int invert=0; int clk=0; - sscanf(Cmd, "%i %i", &clk, &invert); + 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; + if (verbose) PrintAndLog("Invalid argument: %s", Cmd); + return 0; } uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; size_t BitLen = getFromGraphBuf(BitStream); + if (BitLen==0) return -1; + uint8_t carrier=countFC(BitStream, BitLen, 0); + if (carrier!=2 && carrier!=4 && carrier!=8){ + //invalid carrier + return 0; + } int errCnt=0; - errCnt = pskNRZrawDemod(BitStream, &BitLen,&clk,&invert); + errCnt = pskRawDemod(BitStream, &BitLen, &clk, &invert); + if (errCnt > maxErr){ + if (g_debugMode==1 && verbose) 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) - //PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt); - return -1; + if (g_debugMode==1 && verbose) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt); + return 0; + } + if (verbose){ + PrintAndLog("Tried PSK Demod using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen); + if (errCnt>0){ + PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt); + } } - PrintAndLog("Tried PSK/NRZ Demod using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen); - //prime demod buffer for output - setDemodBuf(BitStream,BitLen); - return errCnt; + setDemodBuf(BitStream,BitLen,0); + return 1; } + // 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 = PSKDemod(Cmd, 0); + } else{ //default to RF/32 + ans = PSKDemod("32", 0); + } - int ans=PSKnrzDemod(Cmd); - if (ans < 0){ - PrintAndLog("Error1: %d",ans); + if (!ans){ + if (g_debugMode==1) + PrintAndLog("Error1: %d",ans); return 0; } uint8_t invert=0; ans = indala26decode(DemodBuffer,(size_t *) &DemodBufferLen, &invert); if (ans < 1) { - PrintAndLog("Error2: %d",ans); + if (g_debugMode==1) + PrintAndLog("Error2: %d",ans); return -1; } - char showbits[251]; - if(invert==1) PrintAndLog("Had to invert bits"); + 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; @@ -929,67 +1926,185 @@ 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 get rid of high immediately after a low) -void pskCleanWave2(uint8_t *bitStream, int bitLen) +// 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 NRZrawDemod(const char *Cmd, bool verbose) { - int i; - int low=128; - int gap = 4; - // int loopMax = 2048; - int newLow=0; - - for (i=0; i maxErr){ + if (g_debugMode) 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) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt); + return 0; + } + if (verbose || g_debugMode) 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 && (verbose || g_debugMode)) PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt); + if (verbose || g_debugMode) { + PrintAndLog("NRZ demoded bitstream:"); + // Now output the bitstream to the scrollback by line of 16 bits + printDemodBuff(); + } + return 1; } -*/ -int CmdPskClean(const char *Cmd) + +int CmdNRZrawDemod(const char *Cmd) { - uint8_t bitStream[MAX_GRAPH_TRACE_LEN]={0}; - size_t bitLen = getFromGraphBuf(bitStream); - pskCleanWave(bitStream, bitLen); - setGraphBuf(bitStream, bitLen); - return 0; + char cmdp = param_getchar(Cmd, 0); + if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') { + PrintAndLog("Usage: data rawdemod nr [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 rawdemod nr = demod a nrz/direct tag from GraphBuffer"); + PrintAndLog(" : data rawdemod nr 32 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32"); + PrintAndLog(" : data rawdemod nr 32 1 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32 and inverting data"); + PrintAndLog(" : data rawdemod nr 1 = demod a nrz/direct tag from GraphBuffer while inverting data"); + PrintAndLog(" : data rawdemod nr 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; + } + return NRZrawDemod(Cmd, TRUE); } -//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 psk only +// prints binary found and saves in demodbuffer for further commands +int CmdPSK1rawDemod(const char *Cmd) { - int errCnt= PSKnrzDemod(Cmd); + int ans; + char cmdp = param_getchar(Cmd, 0); + if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') { + PrintAndLog("Usage: data rawdemod p1 [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 rawdemod p1 = demod a psk1 tag from GraphBuffer"); + PrintAndLog(" : data rawdemod p1 32 = demod a psk1 tag from GraphBuffer using a clock of RF/32"); + PrintAndLog(" : data rawdemod p1 32 1 = demod a psk1 tag from GraphBuffer using a clock of RF/32 and inverting data"); + PrintAndLog(" : data rawdemod p1 1 = demod a psk1 tag from GraphBuffer while inverting data"); + PrintAndLog(" : data rawdemod p1 64 1 0 = demod a psk1 tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors"); + return 0; + } + ans = PSKDemod(Cmd, TRUE); //output - if (errCnt<0) return 0; - if (errCnt>0){ - PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt); + if (!ans){ + if (g_debugMode) PrintAndLog("Error demoding: %d",ans); + return 0; } - PrintAndLog("PSK or NRZ demoded bitstream:"); + + 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 cmdpsk1rawdemod +int CmdPSK2rawDemod(const char *Cmd) +{ + int ans=0; + char cmdp = param_getchar(Cmd, 0); + if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') { + PrintAndLog("Usage: data rawdemod p2 [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 rawdemod p2 = demod a psk2 tag from GraphBuffer, autodetect clock"); + PrintAndLog(" : data rawdemod p2 32 = demod a psk2 tag from GraphBuffer using a clock of RF/32"); + PrintAndLog(" : data rawdemod p2 32 1 = demod a psk2 tag from GraphBuffer using a clock of RF/32 and inverting output"); + PrintAndLog(" : data rawdemod p2 1 = demod a psk2 tag from GraphBuffer, autodetect clock and invert output"); + PrintAndLog(" : data rawdemod p2 64 1 0 = demod a psk2 tag from GraphBuffer using a clock of RF/64, inverting output and allowing 0 demod errors"); + return 0; + } + ans=PSKDemod(Cmd, TRUE); + if (!ans){ + if (g_debugMode) PrintAndLog("Error demoding: %d",ans); + return 0; + } + psk1TOpsk2(DemodBuffer, DemodBufferLen); + PrintAndLog("PSK2 demoded bitstream:"); + // Now output the bitstream to the scrollback by line of 16 bits + printDemodBuff(); + return 1; +} +// by marshmellow - combines all raw demod functions into one menu command +int CmdRawDemod(const char *Cmd) +{ + char cmdp = Cmd[0]; //param_getchar(Cmd, 0); + + if (strlen(Cmd) > 14 || cmdp == 'h' || cmdp == 'H' || strlen(Cmd)<2) { + PrintAndLog("Usage: data rawdemod [modulation] |"); + PrintAndLog(" [modulation] as 2 char, 'ab' for ask/biphase, 'am' for ask/manchester, 'ar' for ask/raw, 'fs' for fsk, ..."); + PrintAndLog(" 'nr' for nrz/direct, 'p1' for psk1, 'p2' for psk2"); + PrintAndLog(" as 'h', prints the help for the specific modulation"); + PrintAndLog(" see specific modulation help for optional parameters"); + PrintAndLog(""); + PrintAndLog(" sample: data rawdemod fs h = print help specific to fsk demod"); + PrintAndLog(" : data rawdemod fs = demod GraphBuffer using: fsk - autodetect"); + PrintAndLog(" : data rawdemod ab = demod GraphBuffer using: ask/biphase - autodetect"); + PrintAndLog(" : data rawdemod am = demod GraphBuffer using: ask/manchester - autodetect"); + PrintAndLog(" : data rawdemod ar = demod GraphBuffer using: ask/raw - autodetect"); + PrintAndLog(" : data rawdemod nr = demod GraphBuffer using: nrz/direct - autodetect"); + PrintAndLog(" : data rawdemod p1 = demod GraphBuffer using: psk1 - autodetect"); + PrintAndLog(" : data rawdemod p2 = demod GraphBuffer using: psk2 - autodetect"); + return 0; + } + char cmdp2 = Cmd[1]; + int ans = 0; + if (cmdp == 'f' && cmdp2 == 's'){ + ans = CmdFSKrawdemod(Cmd+2); + } else if(cmdp == 'a' && cmdp2 == 'b'){ + ans = Cmdaskbiphdemod(Cmd+2); + } else if(cmdp == 'a' && cmdp2 == 'm'){ + ans = Cmdaskmandemod(Cmd+2); + } else if(cmdp == 'a' && cmdp2 == 'r'){ + ans = Cmdaskrawdemod(Cmd+2); + } else if(cmdp == 'n' && cmdp2 == 'r'){ + ans = CmdNRZrawDemod(Cmd+2); + } else if(cmdp == 'p' && cmdp2 == '1'){ + ans = CmdPSK1rawDemod(Cmd+2); + } else if(cmdp == 'p' && cmdp2 == '2'){ + ans = CmdPSK2rawDemod(Cmd+2); + } else { + PrintAndLog("unknown modulation entered - see help ('h') for parameter structure"); + } + return ans; +} int CmdGrid(const char *Cmd) { @@ -1007,7 +2122,7 @@ 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); @@ -1016,7 +2131,7 @@ 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; } @@ -1049,6 +2164,7 @@ int CmdHide(const char *Cmd) return 0; } +//zero mean GraphBuffer int CmdHpf(const char *Cmd) { int i; @@ -1063,55 +2179,162 @@ 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; +} + +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 getSamples(const char *Cmd, bool silent) +{ + //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 }; - n = strtol(Cmd, NULL, 0); - if (n == 0) n = 6000; - if (n > sizeof(got)) n = sizeof(got); + int n = strtol(Cmd, NULL, 0); - PrintAndLog("Reading %d samples\n", n); + 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); - WaitForResponse(CMD_ACK,NULL); - for (int j = 0; j < n; j++) { - GraphBuffer[cnt++] = ((int)got[j]) - 128; + 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; } - PrintAndLog("Done!\n"); - GraphTraceLen = n; RepaintGraphWindow(); return 0; } +int CmdSamples(const char *Cmd) +{ + return getSamples(Cmd, false); +} + int CmdTuneSamples(const char *Cmd) { - int cnt = 0; - int n = 255; - uint8_t got[255]; + int timeout = 0; + printf("\nMeasuring antenna characteristics, please wait..."); - 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; + 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); + +#define LF_UNUSABLE_V 2948 // was 2000. Changed due to bugfix in voltage measurements. LF results are now 47% higher. +#define LF_MARGINAL_V 14739 // was 10000. Changed due to bugfix bug in voltage measurements. LF results are now 47% higher. +#define HF_UNUSABLE_V 3167 // was 2000. Changed due to bugfix in voltage measurements. HF results are now 58% higher. +#define HF_MARGINAL_V 7917 // was 5000. Changed due to bugfix in voltage measurements. HF results are now 58% higher. + + if (peakv < LF_UNUSABLE_V) + PrintAndLog("# Your LF antenna is unusable."); + else if (peakv < LF_MARGINAL_V) + PrintAndLog("# Your LF antenna is marginal."); + if (vHf < HF_UNUSABLE_V) + PrintAndLog("# Your HF antenna is unusable."); + else if (vHf < HF_MARGINAL_V) + PrintAndLog("# Your HF antenna is marginal."); + + if (peakv >= LF_UNUSABLE_V) { + for (int i = 0; i < 256; i++) { + GraphBuffer[i] = resp.d.asBytes[i] - 128; + } + PrintAndLog("Displaying LF tuning graph. Divisor 89 is 134khz, 95 is 125khz.\n"); + PrintAndLog("\n"); + GraphTraceLen = 256; + ShowGraphWindow(); + RepaintGraphWindow(); } - PrintAndLog("Done! Divisor 89 is 134khz, 95 is 125khz.\n"); - PrintAndLog("\n"); - GraphTraceLen = n; - RepaintGraphWindow(); 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; } @@ -1138,6 +2361,8 @@ int CmdLtrim(const char *Cmd) RepaintGraphWindow(); return 0; } + +// trim graph to input argument length int CmdRtrim(const char *Cmd) { int ds = atoi(Cmd); @@ -1205,7 +2430,7 @@ int CmdManchesterDemod(const char *Cmd) } /* Get our clock */ - clock = GetClock(Cmd, high, 1); + clock = GetAskClock(Cmd, high, 1); int tolerance = clock/4; @@ -1365,7 +2590,7 @@ int CmdManchesterMod(const char *Cmd) int bit, lastbit, wave; /* Get our clock */ - clock = GetClock(Cmd, 0, 1); + clock = GetAskClock(Cmd, 0, 1); wave = 0; lastbit = 1; @@ -1418,9 +2643,17 @@ 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; @@ -1523,45 +2756,52 @@ int CmdZerocrossings(const char *Cmd) 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])"}, - {"autocorr", CmdAutoCorr, 1, " -- Autocorrelation over window"}, - {"biphaserawdecode",CmdBiphaseDecodeRaw,1,"[offset] Biphase decode binary stream already in graph buffer (offset = bit to start decode from)"}, - {"bitsamples", CmdBitsamples, 0, "Get raw samples as bitstring"}, - {"bitstream", CmdBitstream, 1, "[clock rate] -- Convert waveform into a bitstream"}, - {"buffclear", CmdBuffClear, 1, "Clear sample buffer and graph window"}, - {"dec", CmdDec, 1, "Decimate samples"}, - {"detectclock", CmdDetectClockRate, 1, "Detect 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 or 0)(rchigh = 10)(rclow=8)"}, - {"grid", CmdGrid, 1, " -- overlay grid on graph window, use zero value to turn off either"}, - {"hexsamples", CmdHexsamples, 0, " [] -- Dump big buffer as hex bytes"}, - {"hide", CmdHide, 1, "Hide graph window"}, - {"hpf", CmdHpf, 1, "Remove DC offset from trace"}, - {"load", CmdLoad, 1, " -- Load trace (to graph window"}, - {"ltrim", CmdLtrim, 1, " -- Trim samples from left of trace"}, - {"rtrim", CmdRtrim, 1, " -- Trim samples from right of trace"}, - {"mandemod", CmdManchesterDemod, 1, "[i] [clock rate] -- Manchester demodulate binary stream (option 'i' to invert output)"}, - {"manrawdecode", Cmdmandecoderaw, 1, "Manchester decode binary stream already in graph buffer"}, - {"manmod", CmdManchesterMod, 1, "[clock rate] -- Manchester modulate a binary stream"}, - {"norm", CmdNorm, 1, "Normalize max/min to +/-128"}, - {"plot", CmdPlot, 1, "Show graph window (hit 'h' in window for keystroke help)"}, - {"pskclean", CmdPskClean, 1, "Attempt to clean psk wave"}, - {"pskdetectclock",CmdDetectNRZpskClockRate, 1, "Detect ASK, PSK, or NRZ clock rate"}, - {"pskindalademod",CmdIndalaDecode, 1, "[clock] [invert<0 or 1>] -- Attempt to demodulate psk indala tags and output ID binary & hex (args optional[clock will try Auto-detect])"}, - {"psknrzrawdemod",CmdpskNRZrawDemod, 1, "[clock] [invert<0 or 1>] -- Attempt to demodulate psk or nrz tags and output binary (args optional[clock will try Auto-detect])"}, - {"samples", CmdSamples, 0, "[512 - 40000] -- Get raw samples for graph window"}, - {"save", CmdSave, 1, " -- Save trace (from graph window)"}, - {"scale", CmdScale, 1, " -- Set cursor display scale"}, - {"threshold", CmdThreshold, 1, " -- Maximize/minimize every value in the graph window depending on threshold"}, - {"dirthreshold", CmdDirectionalThreshold, 1, " -- Max rising higher up-thres/ Min falling lower down-thres, keep rest as prev."}, - {"tune", CmdTuneSamples, 0, "Get hw tune samples for graph window"}, - {"zerocrossings", CmdZerocrossings, 1, "Count time between zero-crossings"}, + {"help", CmdHelp, 1, "This help"}, + {"amp", CmdAmp, 1, "Amplify peaks"}, + //{"askdemod", Cmdaskdemod, 1, "<0 or 1> -- Attempt to demodulate simple ASK tags"}, + {"askedgedetect", CmdAskEdgeDetect, 1, "[threshold] Adjust Graph for manual ask demod using length of sample differences to detect the edge of a wave (default = 25)"}, + {"askem410xdemod", CmdAskEM410xDemod, 1, "[clock] [invert<0|1>] [maxErr] -- Demodulate an EM410x tag from GraphBuffer (args optional)"}, + {"askgproxiidemod", CmdG_Prox_II_Demod, 1, "Demodulate a G Prox II tag from GraphBuffer"}, + {"autocorr", CmdAutoCorr, 1, "[window length] [g] -- Autocorrelation over window - g to save back to GraphBuffer (overwrite)"}, + {"biphaserawdecode",CmdBiphaseDecodeRaw,1,"[offset] [invert<0|1>] Biphase decode bin stream in DemodBuffer (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, "[modulation] Detect clock rate of wave in GraphBuffer (options: 'a','f','n','p' for ask, fsk, nrz, psk respectively)"}, + //{"fskdemod", CmdFSKdemod, 1, "Demodulate graph window as a HID FSK"}, + {"fskawiddemod", CmdFSKdemodAWID, 1, "Demodulate an AWID FSK tag from GraphBuffer"}, + //{"fskfcdetect", CmdFSKfcDetect, 1, "Try to detect the Field Clock of an FSK wave"}, + {"fskhiddemod", CmdFSKdemodHID, 1, "Demodulate a HID FSK tag from GraphBuffer"}, + {"fskiodemod", CmdFSKdemodIO, 1, "Demodulate an IO Prox FSK tag from GraphBuffer"}, + {"fskpyramiddemod", CmdFSKdemodPyramid, 1, "Demodulate a Pyramid FSK tag from GraphBuffer"}, + {"fskparadoxdemod", CmdFSKdemodParadox, 1, "Demodulate a Paradox FSK tag from GraphBuffer"}, + {"getbitstream", CmdGetBitStream, 1, "Convert GraphBuffer's >=1 values to 1 and <1 to 0"}, + {"grid", CmdGrid, 1, " -- overlay grid on graph window, use zero value to turn off either"}, + {"hexsamples", CmdHexsamples, 0, " [] -- Dump big buffer as hex bytes"}, + {"hide", CmdHide, 1, "Hide graph window"}, + {"hpf", CmdHpf, 1, "Remove DC offset from trace"}, + {"load", CmdLoad, 1, " -- Load trace (to graph window"}, + {"ltrim", CmdLtrim, 1, " -- Trim samples from left of trace"}, + {"rtrim", CmdRtrim, 1, " -- Trim samples from right of trace"}, + //{"mandemod", CmdManchesterDemod, 1, "[i] [clock rate] -- Manchester demodulate binary stream (option 'i' to invert output)"}, + {"manrawdecode", Cmdmandecoderaw, 1, "Manchester decode binary stream in DemodBuffer"}, + {"manmod", CmdManchesterMod, 1, "[clock rate] -- Manchester modulate a binary stream"}, + {"norm", CmdNorm, 1, "Normalize max/min to +/-128"}, + {"plot", CmdPlot, 1, "Show graph window (hit 'h' in window for keystroke help)"}, + {"printdemodbuffer",CmdPrintDemodBuff, 1, "[x] -- print the data in the DemodBuffer - 'x' for hex output"}, + {"pskindalademod", CmdIndalaDecode, 1, "[clock] [invert<0|1>] -- Demodulate an indala tag (PSK1) from GraphBuffer (args optional)"}, + {"rawdemod", CmdRawDemod, 1, "[modulation] ... -see help (h option) -- Demodulate the data in the GraphBuffer and output binary"}, + {"samples", CmdSamples, 0, "[512 - 40000] -- Get raw samples for graph window (GraphBuffer)"}, + {"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"}, + {"undec", CmdUndec, 1, "Un-decimate samples by 2"}, + {"zerocrossings", CmdZerocrossings, 1, "Count time between zero-crossings"}, {NULL, NULL, 0, NULL} };