X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/39676885b4bbfcc6ab491ad988e0f64ba5898165..3962dce565fc63c0190d4570bfaf339ec32b7025:/client/graph.c diff --git a/client/graph.c b/client/graph.c index 243da466..3ea47d2d 100644 --- a/client/graph.c +++ b/client/graph.c @@ -14,20 +14,23 @@ #include "ui.h" #include "graph.h" #include "lfdemod.h" +#include "cmddata.h" //for g_debugmode int GraphBuffer[MAX_GRAPH_TRACE_LEN]; int GraphTraceLen; +int s_Buff[MAX_GRAPH_TRACE_LEN]; + /* write a manchester bit to the graph */ void AppendGraph(int redraw, int clock, int bit) { int i; //set first half the clock bit (all 1's or 0's for a 0 or 1 bit) for (i = 0; i < (int)(clock / 2); ++i) - GraphBuffer[GraphTraceLen++] = bit ^ 1; + GraphBuffer[GraphTraceLen++] = bit ; //set second half of the clock bit (all 0's or 1's for a 0 or 1 bit) for (i = (int)(clock / 2); i < clock; ++i) - GraphBuffer[GraphTraceLen++] = bit; + GraphBuffer[GraphTraceLen++] = bit ^ 1; if (redraw) RepaintGraphWindow(); @@ -46,6 +49,27 @@ int ClearGraph(int redraw) return gtl; } +// option '1' to save GraphBuffer any other to restore +void save_restoreGB(uint8_t saveOpt) +{ + static int SavedGB[MAX_GRAPH_TRACE_LEN]; + static int SavedGBlen=0; + static bool GB_Saved = false; + static int SavedGridOffsetAdj=0; + + if (saveOpt == GRAPH_SAVE) { //save + memcpy(SavedGB, GraphBuffer, sizeof(GraphBuffer)); + SavedGBlen = GraphTraceLen; + GB_Saved=true; + SavedGridOffsetAdj = GridOffset; + } else if (GB_Saved) { //restore + memcpy(GraphBuffer, SavedGB, sizeof(GraphBuffer)); + GraphTraceLen = SavedGBlen; + GridOffset = SavedGridOffsetAdj; + RepaintGraphWindow(); + } + return; +} // DETECT CLOCK NOW IN LFDEMOD.C @@ -126,10 +150,17 @@ int GetAskClock(const char str[], bool printAns, bool verbose) PrintAndLog("Failed to copy from graphbuffer"); return -1; } - DetectASKClock(grph, size, &clock, 20); + //, size_t *ststart, size_t *stend + size_t ststart = 0, stend = 0; + bool st = DetectST(grph, &size, &clock, &ststart, &stend); + int start = stend; + if (st == false) { + start = DetectASKClock(grph, size, &clock, 20); + } + setClockGrid(clock, start); // Only print this message if we're not looping something - if (printAns){ - PrintAndLog("Auto-detected clock rate: %d", clock); + if (printAns || g_debugMode) { + PrintAndLog("Auto-detected clock rate: %d, Best Starting Position: %d", clock, start); } return clock; } @@ -144,11 +175,12 @@ uint8_t GetPskCarrier(const char str[], bool printAns, bool verbose) PrintAndLog("Failed to copy from graphbuffer"); return 0; } - //uint8_t countPSK_FC(uint8_t *BitStream, size_t size) - - carrier = countPSK_FC(grph,size); + uint16_t fc = countFC(grph,size,0); + carrier = fc & 0xFF; + if (carrier != 2 && carrier != 4 && carrier != 8) return 0; + if ((fc>>8) == 10 && carrier == 8) return 0; // Only print this message if we're not looping something - if (printAns){ + if (printAns) { PrintAndLog("Auto-detected PSK carrier rate: %d", carrier); } return carrier; @@ -171,7 +203,10 @@ int GetPskClock(const char str[], bool printAns, bool verbose) PrintAndLog("Failed to copy from graphbuffer"); return -1; } - clock = DetectPSKClock(grph,size,0); + size_t firstPhaseShiftLoc = 0; + uint8_t curPhase = 0, fc = 0; + clock = DetectPSKClock(grph, size, 0, &firstPhaseShiftLoc, &curPhase, &fc); + setClockGrid(clock, firstPhaseShiftLoc); // Only print this message if we're not looping something if (printAns){ PrintAndLog("Auto-detected clock rate: %d", clock); @@ -196,7 +231,9 @@ uint8_t GetNrzClock(const char str[], bool printAns, bool verbose) PrintAndLog("Failed to copy from graphbuffer"); return -1; } - clock = DetectNRZClock(grph, size, 0); + size_t clkStartIdx = 0; + clock = DetectNRZClock(grph, size, 0, &clkStartIdx); + setClockGrid(clock, clkStartIdx); // Only print this message if we're not looping something if (printAns){ PrintAndLog("Auto-detected clock rate: %d", clock); @@ -215,10 +252,12 @@ uint8_t GetFskClock(const char str[], bool printAns, bool verbose) uint8_t fc1=0, fc2=0, rf1=0; - uint8_t ans = fskClocks(&fc1, &fc2, &rf1, verbose); + int firstClockEdge = 0; + uint8_t ans = fskClocks(&fc1, &fc2, &rf1, verbose, &firstClockEdge); if (ans == 0) return 0; if ((fc1==10 && fc2==8) || (fc1==8 && fc2==5)){ if (printAns) PrintAndLog("Detected Field Clocks: FC/%d, FC/%d - Bit Clock: RF/%d", fc1, fc2, rf1); + setClockGrid(rf1, firstClockEdge); return rf1; } if (verbose){ @@ -227,24 +266,33 @@ uint8_t GetFskClock(const char str[], bool printAns, bool verbose) } return 0; } -uint8_t fskClocks(uint8_t *fc1, uint8_t *fc2, uint8_t *rf1, bool verbose) +uint8_t fskClocks(uint8_t *fc1, uint8_t *fc2, uint8_t *rf1, bool verbose, int *firstClockEdge) { uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; size_t size = getFromGraphBuf(BitStream); if (size==0) return 0; - uint8_t dummy = 0; - uint16_t ans = countFC(BitStream, size, &dummy); + uint16_t ans = countFC(BitStream, size, 1); if (ans==0) { - if (verbose) PrintAndLog("DEBUG: No data found"); + if (verbose || g_debugMode) PrintAndLog("DEBUG: No data found"); return 0; } *fc1 = (ans >> 8) & 0xFF; *fc2 = ans & 0xFF; - - *rf1 = detectFSKClk(BitStream, size, *fc1, *fc2); + //int firstClockEdge = 0; + *rf1 = detectFSKClk(BitStream, size, *fc1, *fc2, firstClockEdge); if (*rf1==0) { - if (verbose) PrintAndLog("DEBUG: Clock detect error"); + if (verbose || g_debugMode) PrintAndLog("DEBUG: Clock detect error"); return 0; } return 1; } +bool graphJustNoise(int *BitStream, int size) +{ + static const uint8_t THRESHOLD = 15; //might not be high enough for noisy environments + //test samples are not just noise + bool justNoise1 = 1; + for(int idx=0; idx < size && justNoise1 ;idx++){ + justNoise1 = BitStream[idx] < THRESHOLD; + } + return justNoise1; +}