From cf4640b973d72d184d5a782cb63379e02c53c5bc Mon Sep 17 00:00:00 2001 From: marshmellow42 Date: Wed, 22 Mar 2017 17:16:43 -0400 Subject: [PATCH] split io demod/pyramid demod to respective files out of cmddata.c / data cmds see changelog.md for cli changes as options have changed! --- CHANGELOG.md | 3 + client/cmddata.c | 229 ------------------------------------------ client/cmddata.h | 2 - client/cmdlfio.c | 105 ++++++++++++++++--- client/cmdlfio.h | 6 +- client/cmdlfpyramid.c | 153 ++++++++++++++++++++++++++-- client/cmdlfpyramid.h | 11 +- 7 files changed, 248 insertions(+), 261 deletions(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index 189e72d4..59e87277 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -45,6 +45,9 @@ This project uses the changelog in accordance with [keepchangelog](http://keepac - Added option c to 'hf list' (mark CRC bytes) (piwi) ### Changed +- `data fskpyramiddemod` has been moved to `lf pyramid demod` (reads from graphbuffer) +- `data fskiodemod` has been moved to `lf io demod` (reads from graphbuffer) +- `lf io fskdemod` has been renamed to `lf io read` (reads from antenna) - `data fskawiddemod` has been moved to `lf awid demod` (reads from graphbuffer) - `lf awid fskdemod` has been renamed to `lf awid read` (reads from antenna) - `data fskhiddemod` has been moved to `lf hid demod` (reads from graphbuffer) diff --git a/client/cmddata.c b/client/cmddata.c index de85b280..1924e5f7 100644 --- a/client/cmddata.c +++ b/client/cmddata.c @@ -943,233 +943,6 @@ int CmdFSKdemodParadox(const char *Cmd) return 1; } -//by marshmellow -//IO-Prox demod - FSK RF/64 with preamble of 000000001 -//print ioprox ID and some format details -int CmdFSKdemodIO(const char *Cmd) -{ - int idx=0; - //something in graphbuffer? - if (GraphTraceLen < 65) { - if (g_debugMode)PrintAndLog("DEBUG: not enough samples in GraphBuffer"); - return 0; - } - uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; - 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){ - 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){ - if (g_debugMode){ - PrintAndLog("DEBUG: IO Prox Data not found - FSK Bits: %d",BitLen); - if (BitLen > 92) PrintAndLog("%s", sprint_bin_break(BitStream,92,16)); - } - return 0; - } - //Index map - //0 10 20 30 40 50 60 - //| | | | | | | - //01234567 8 90123456 7 89012345 6 78901234 5 67890123 4 56789012 3 45678901 23 - //----------------------------------------------------------------------------- - //00000000 0 11110000 1 facility 1 version* 1 code*one 1 code*two 1 ???????? 11 - // - //XSF(version)facility:codeone+codetwo (raw) - //Handle the data - if (idx+64>BitLen) { - if (g_debugMode) 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]); - PrintAndLog("%d%d%d%d%d%d%d%d %d version",BitStream[idx+27], BitStream[idx+28], BitStream[idx+29],BitStream[idx+30],BitStream[idx+31],BitStream[idx+32],BitStream[idx+33],BitStream[idx+34],BitStream[idx+35]); - PrintAndLog("%d%d%d%d%d%d%d%d %d code1",BitStream[idx+36], BitStream[idx+37], BitStream[idx+38],BitStream[idx+39],BitStream[idx+40],BitStream[idx+41],BitStream[idx+42],BitStream[idx+43],BitStream[idx+44]); - PrintAndLog("%d%d%d%d%d%d%d%d %d code2",BitStream[idx+45], BitStream[idx+46], BitStream[idx+47],BitStream[idx+48],BitStream[idx+49],BitStream[idx+50],BitStream[idx+51],BitStream[idx+52],BitStream[idx+53]); - PrintAndLog("%d%d%d%d%d%d%d%d %d%d checksum",BitStream[idx+54],BitStream[idx+55],BitStream[idx+56],BitStream[idx+57],BitStream[idx+58],BitStream[idx+59],BitStream[idx+60],BitStream[idx+61],BitStream[idx+62],BitStream[idx+63]); - - uint32_t code = bytebits_to_byte(BitStream+idx,32); - uint32_t code2 = bytebits_to_byte(BitStream+idx+32,32); - 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 - 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); - } - 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; -} - -//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){ - 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) - 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; -} - // FDX-B ISO11784/85 demod (aka animal tag) BIPHASE, inverted, rf/32, with preamble of 00000000001 (128bits) // 8 databits + 1 parity (1) // CIITT 16 chksum @@ -2094,8 +1867,6 @@ static command_t CommandTable[] = {"detectclock", CmdDetectClockRate, 1, "[modulation] Detect clock rate of wave in GraphBuffer (options: 'a','f','n','p' for ask, fsk, nrz, psk respectively)"}, {"fdxbdemod", CmdFDXBdemodBI , 1, "Demodulate a FDX-B ISO11784/85 Biphase tag from GraphBuffer"}, //{"fskfcdetect", CmdFSKfcDetect, 1, "Try to detect the Field Clock of an FSK wave"}, - {"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"}, diff --git a/client/cmddata.h b/client/cmddata.h index b708dd07..789ebb1b 100644 --- a/client/cmddata.h +++ b/client/cmddata.h @@ -35,9 +35,7 @@ int CmdBuffClear(const char *Cmd); int CmdDec(const char *Cmd); int CmdDetectClockRate(const char *Cmd); int CmdFDXBdemodBI(const char *Cmd); -int CmdFSKdemodIO(const char *Cmd); int CmdFSKdemodParadox(const char *Cmd); -int CmdFSKdemodPyramid(const char *Cmd); int CmdFSKrawdemod(const char *Cmd); int CmdPSK1rawDemod(const char *Cmd); int CmdPSK2rawDemod(const char *Cmd); diff --git a/client/cmdlfio.c b/client/cmdlfio.c index e3769511..626fe639 100644 --- a/client/cmdlfio.c +++ b/client/cmdlfio.c @@ -11,10 +11,12 @@ #include "cmdmain.h" #include "cmddata.h" #include "cmdlf.h" +#include "lfdemod.h" //for IOdemodFSK + bytebits_to_byte +#include "util.h" //for sprint_bin_break static int CmdHelp(const char *Cmd); -int CmdIODemodFSK(const char *Cmd) +int CmdIOReadFSK(const char *Cmd) { int findone=0; if(Cmd[0]=='1') findone=1; @@ -24,20 +26,95 @@ int CmdIODemodFSK(const char *Cmd) SendCommand(&c); return 0; } -/* -int CmdIOProxDemod(const char *Cmd){ - if (GraphTraceLen < 4800) { - PrintAndLog("too short; need at least 4800 samples"); + +//by marshmellow +//IO-Prox demod - FSK RF/64 with preamble of 000000001 +//print ioprox ID and some format details +int CmdFSKdemodIO(const char *Cmd) +{ + int idx=0; + //something in graphbuffer? + if (GraphTraceLen < 65) { + if (g_debugMode)PrintAndLog("DEBUG: not enough samples in GraphBuffer"); return 0; } - GraphTraceLen = 4800; - for (int i = 0; i < GraphTraceLen; ++i) { - GraphBuffer[i] = (GraphBuffer[i] < 0) ? 0 : 1; + 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){ + 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; } - RepaintGraphWindow(); - return 0; -} -*/ + if (idx==0){ + if (g_debugMode){ + PrintAndLog("DEBUG: IO Prox Data not found - FSK Bits: %d",BitLen); + if (BitLen > 92) PrintAndLog("%s", sprint_bin_break(BitStream,92,16)); + } + return 0; + } + //Index map + //0 10 20 30 40 50 60 + //| | | | | | | + //01234567 8 90123456 7 89012345 6 78901234 5 67890123 4 56789012 3 45678901 23 + //----------------------------------------------------------------------------- + //00000000 0 11110000 1 facility 1 version* 1 code*one 1 code*two 1 ???????? 11 + // + //XSF(version)facility:codeone+codetwo (raw) + //Handle the data + if (idx+64>BitLen) { + if (g_debugMode) 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]); + PrintAndLog("%d%d%d%d%d%d%d%d %d version",BitStream[idx+27], BitStream[idx+28], BitStream[idx+29],BitStream[idx+30],BitStream[idx+31],BitStream[idx+32],BitStream[idx+33],BitStream[idx+34],BitStream[idx+35]); + PrintAndLog("%d%d%d%d%d%d%d%d %d code1",BitStream[idx+36], BitStream[idx+37], BitStream[idx+38],BitStream[idx+39],BitStream[idx+40],BitStream[idx+41],BitStream[idx+42],BitStream[idx+43],BitStream[idx+44]); + PrintAndLog("%d%d%d%d%d%d%d%d %d code2",BitStream[idx+45], BitStream[idx+46], BitStream[idx+47],BitStream[idx+48],BitStream[idx+49],BitStream[idx+50],BitStream[idx+51],BitStream[idx+52],BitStream[idx+53]); + PrintAndLog("%d%d%d%d%d%d%d%d %d%d checksum",BitStream[idx+54],BitStream[idx+55],BitStream[idx+56],BitStream[idx+57],BitStream[idx+58],BitStream[idx+59],BitStream[idx+60],BitStream[idx+61],BitStream[idx+62],BitStream[idx+63]); + + uint32_t code = bytebits_to_byte(BitStream+idx,32); + uint32_t code2 = bytebits_to_byte(BitStream+idx+32,32); + 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 + 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); + } + 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; +} + int CmdIOClone(const char *Cmd) { unsigned int hi = 0, lo = 0; @@ -67,8 +144,8 @@ int CmdIOClone(const char *Cmd) static command_t CommandTable[] = { {"help", CmdHelp, 1, "This help"}, - //{"demod", CmdIOProxDemod, 1, "Demodulate Stream"}, - {"fskdemod", CmdIODemodFSK, 0, "['1'] Realtime IO FSK demodulator (option '1' for one tag only)"}, + {"demod", CmdFSKdemodIO, 1, "Demodulate IO Prox tag from the GraphBuffer"}, + {"read", CmdIOReadFSK, 0, "['1'] Realtime IO FSK demodulate from antenna (option '1' for one tag only)"}, {"clone", CmdIOClone, 0, "Clone ioProx Tag"}, {NULL, NULL, 0, NULL} }; diff --git a/client/cmdlfio.h b/client/cmdlfio.h index 1b7daa0f..3b89c939 100644 --- a/client/cmdlfio.h +++ b/client/cmdlfio.h @@ -4,8 +4,8 @@ #ifndef CMDLFIO_H__ #define CMDLFIO_H__ -int CmdLFIO(const char *Cmd); - -int CmdIODemodFSK(const char *Cmd); +extern int CmdLFIO(const char *Cmd); +extern int CmdFSKdemodIO(const char *Cmd); +extern int CmdIOReadFSK(const char *Cmd); #endif diff --git a/client/cmdlfpyramid.c b/client/cmdlfpyramid.c index 2494f265..d1b4c293 100644 --- a/client/cmdlfpyramid.c +++ b/client/cmdlfpyramid.c @@ -9,13 +9,12 @@ #include #include #include -#include "cmdlfpyramid.h" #include "proxmark3.h" #include "ui.h" #include "util.h" #include "graph.h" #include "cmdparser.h" -#include "cmddata.h" +#include "cmddata.h" // setDemodBuf + #include "cmdmain.h" #include "cmdlf.h" #include "protocols.h" // for T55xx config register definitions @@ -27,7 +26,7 @@ static int CmdHelp(const char *Cmd); int usage_lf_pyramid_clone(void){ PrintAndLog("clone a Farpointe/Pyramid tag to a T55x7 tag."); PrintAndLog("The facility-code is 8-bit and the card number is 16-bit. Larger values are truncated. "); - PrintAndLog("Currently work only on 26bit"); + PrintAndLog("Currently only works on 26bit"); PrintAndLog(""); PrintAndLog("Usage: lf pyramid clone "); PrintAndLog("Options :"); @@ -85,6 +84,145 @@ int GetPyramidBits(uint32_t fc, uint32_t cn, uint8_t *pyramidBits) { 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){ + 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) + 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 CmdPyramidRead(const char *Cmd) { CmdLFRead("s"); getSamples("30000",false); @@ -181,10 +319,11 @@ int CmdPyramidSim(const char *Cmd) { } static command_t CommandTable[] = { - {"help", CmdHelp, 1, "This help"}, - {"read", CmdPyramidRead, 0, "Attempt to read and extract tag data"}, - {"clone", CmdPyramidClone, 0, " clone pyramid tag"}, - {"sim", CmdPyramidSim, 0, " simulate pyramid tag"}, + {"help", CmdHelp, 1, "This help"}, + {"demod", CmdFSKdemodPyramid, 1, "Demodulate a Pyramid FSK tag from the GraphBuffer"}, + {"read", CmdPyramidRead, 0, "Attempt to read and extract tag data"}, + {"clone", CmdPyramidClone, 0, " clone pyramid tag"}, + {"sim", CmdPyramidSim, 0, " simulate pyramid tag"}, {NULL, NULL, 0, NULL} }; diff --git a/client/cmdlfpyramid.h b/client/cmdlfpyramid.h index 73e8338a..80d81d2a 100644 --- a/client/cmdlfpyramid.h +++ b/client/cmdlfpyramid.h @@ -9,11 +9,10 @@ #ifndef CMDLFPYRAMID_H__ #define CMDLFPYRAMID_H__ -int CmdLFPyramid(const char *Cmd); -int CmdPyramidClone(const char *Cmd); -int CmdPyramidSim(const char *Cmd); - -int usage_lf_pyramid_clone(void); -int usage_lf_pyramid_sim(void); +extern int CmdLFPyramid(const char *Cmd); +extern int CmdPyramidClone(const char *Cmd); +extern int CmdPyramidSim(const char *Cmd); +extern int CmdFSKdemodPyramid(const char *Cmd); +extern int CmdPyramidRead(const char *Cmd); #endif -- 2.39.2