X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/28fdb04fd8d62e46c36f959b373d662f1a146448..47cbb2d41851e680c84b3a7dd0465f7f7960a9ec:/client/cmddata.c diff --git a/client/cmddata.c b/client/cmddata.c index 6c2c7841..1df3486d 100644 --- a/client/cmddata.c +++ b/client/cmddata.c @@ -12,15 +12,16 @@ #include #include #include -//#include "proxusb.h" #include "proxmark3.h" #include "data.h" #include "ui.h" #include "graph.h" #include "cmdparser.h" +#include "util.h" #include "cmdmain.h" #include "cmddata.h" + static int CmdHelp(const char *Cmd); int CmdAmp(const char *Cmd) @@ -74,12 +75,14 @@ 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???) + if (c != 0 && c != 1) { + PrintAndLog("Invalid argument: %s", Cmd); + return 0; + } + + /* Detect high and lows */ for (i = 0; i < GraphTraceLen; ++i) { if (GraphBuffer[i] > high) @@ -87,11 +90,7 @@ int Cmdaskdemod(const char *Cmd) else if (GraphBuffer[i] < low) low = GraphBuffer[i]; } - if (c != 0 && c != 1) { - PrintAndLog("Invalid argument: %s", Cmd); - return 0; - } - + if (GraphBuffer[0] > 0) { GraphBuffer[0] = 1-c; } else { @@ -154,22 +153,19 @@ int CmdAutoCorr(const char *Cmd) int CmdBitsamples(const char *Cmd) { int cnt = 0; - int n = 3072; - - for (int i = 0; i < n; i += 12) { - UsbCommand c = {CMD_DOWNLOAD_RAW_ADC_SAMPLES_125K, {i, 0, 0}}; - SendCommand(&c); - WaitForResponse(CMD_DOWNLOADED_RAW_ADC_SAMPLES_125K, NULL); + uint8_t got[12288]; + + GetFromBigBuf(got,sizeof(got),0); + WaitForResponse(CMD_ACK,NULL); - for (int j = 0; j < 48; j++) { + for (int j = 0; j < sizeof(got); j++) { for (int k = 0; k < 8; k++) { - if(sample_buf[j] & (1 << (7 - k))) { + if(got[j] & (1 << (7 - k))) { GraphBuffer[cnt++] = 1; } else { GraphBuffer[cnt++] = 0; } } - } } GraphTraceLen = cnt; RepaintGraphWindow(); @@ -397,47 +393,43 @@ int CmdGrid(const char *Cmd) int CmdHexsamples(const char *Cmd) { - int n; + int i, j; int requested = 0; int offset = 0; + char string_buf[25]; + char* string_ptr = string_buf; + uint8_t got[40000]; + sscanf(Cmd, "%i %i", &requested, &offset); - if (offset % 4 != 0) { - PrintAndLog("Offset must be a multiple of 4"); - return 0; - } - offset = offset/4; - - int delivered = 0; + /* if no args send something */ if (requested == 0) { - n = 12; - requested = 12; - } else { - n = requested/4; - } - - for (int i = offset; i < n+offset; i += 12) { - UsbCommand c = {CMD_DOWNLOAD_RAW_ADC_SAMPLES_125K, {i, 0, 0}}; - SendCommand(&c); - WaitForResponse(CMD_DOWNLOADED_RAW_ADC_SAMPLES_125K, NULL); - for (int j = 0; j < 48; j += 8) { - PrintAndLog("%02x %02x %02x %02x %02x %02x %02x %02x", - sample_buf[j+0], - sample_buf[j+1], - sample_buf[j+2], - sample_buf[j+3], - sample_buf[j+4], - sample_buf[j+5], - sample_buf[j+6], - sample_buf[j+7], - sample_buf[j+8] - ); - delivered += 8; - if (delivered >= requested) - break; + requested = 8; + } + if (offset + requested > sizeof(got)) { + PrintAndLog("Tried to read past end of buffer, + > 40000"); + return 0; + } + + GetFromBigBuf(got,requested,offset); + WaitForResponse(CMD_ACK,NULL); + + i = 0; + for (j = 0; j < requested; j++) { + i++; + string_ptr += sprintf(string_ptr, "%02x ", got[j]); + if (i == 8) { + *(string_ptr - 1) = '\0'; // remove the trailing space + PrintAndLog("%s", string_buf); + string_buf[0] = '\0'; + string_ptr = string_buf; + i = 0; } - if (delivered >= requested) - break; + if (j == requested - 1 && string_buf[0] != '\0') { // print any remaining bytes + *(string_ptr - 1) = '\0'; + PrintAndLog("%s", string_buf); + string_buf[0] = '\0'; + } } return 0; } @@ -465,26 +457,23 @@ int CmdHpf(const char *Cmd) int CmdSamples(const char *Cmd) { - int cnt = 0; - int n; - - n = strtol(Cmd, NULL, 0); - if (n == 0) n = 128; - if (n > 16000) n = 16000; - - PrintAndLog("Reading %d samples\n", n); - for (int i = 0; i < n; i += 12) { - UsbCommand c = {CMD_DOWNLOAD_RAW_ADC_SAMPLES_125K, {i, 0, 0}}; - SendCommand(&c); - WaitForResponse(CMD_DOWNLOADED_RAW_ADC_SAMPLES_125K, NULL); - for (int j = 0; j < 48; j++) { - GraphBuffer[cnt++] = ((int)sample_buf[j]) - 128; - } - } - PrintAndLog("Done!\n"); - GraphTraceLen = n*4; - RepaintGraphWindow(); - return 0; + uint8_t got[36440] = {0x00}; + + int n = strtol(Cmd, NULL, 0); + if (n == 0) + n = 512; + if (n > sizeof(got)) + n = sizeof(got); + + PrintAndLog("Reading %d samples from device memory\n", n); + GetFromBigBuf(got,n,3560); + WaitForResponse(CMD_ACK,NULL); + for (int j = 0; j < n; ++j) { + GraphBuffer[j] = ((int)got[j]) - 128; + } + GraphTraceLen = n; + RepaintGraphWindow(); + return 0; } int CmdLoad(const char *Cmd) @@ -564,7 +553,7 @@ int CmdManchesterDemod(const char *Cmd) /* But it does not work if compiling on WIndows: therefore we just allocate a */ /* large array */ - uint8_t BitStream[MAX_GRAPH_TRACE_LEN]; + uint8_t BitStream[MAX_GRAPH_TRACE_LEN] = {0x00}; /* Detect high and lows */ for (i = 0; i < GraphTraceLen; i++) @@ -576,8 +565,7 @@ int CmdManchesterDemod(const char *Cmd) } /* Get our clock */ - clock = GetClock(Cmd, high, 1); - + clock = GetClock(Cmd, high, 1); int tolerance = clock/4; /* Detect first transition */ @@ -595,14 +583,15 @@ int CmdManchesterDemod(const char *Cmd) break; } } - + /* If we're not working with 1/0s, demod based off clock */ if (high != 1) { + PrintAndLog("Entering path A"); bit = 0; /* We assume the 1st bit is zero, it may not be * the case: this routine (I think) has an init problem. * Ed. - */ + */ for (; i < (int)(GraphTraceLen / clock); i++) { hithigh = 0; @@ -682,7 +671,9 @@ int CmdManchesterDemod(const char *Cmd) // At this stage, we now have a bitstream of "01" ("1") or "10" ("0"), parse it into final decoded bitstream // Actually, we overwrite BitStream with the new decoded bitstream, we just need to be careful // to stop output at the final bitidx2 value, not bitidx - for (i = 0; i < bitidx; i += 2) { + + //http://www.proxmark.org/forum/viewtopic.php?id=403 + for (i = 1; i < bitidx; i += 2) { if ((BitStream[i] == 0) && (BitStream[i+1] == 1)) { BitStream[bit2idx++] = 1 ^ invert; } else if ((BitStream[i] == 1) && (BitStream[i+1] == 0)) { @@ -691,7 +682,7 @@ int CmdManchesterDemod(const char *Cmd) // We cannot end up in this state, this means we are unsynchronized, // move up 1 bit: i++; - warnings++; + warnings++; PrintAndLog("Unsynchronized, resync..."); PrintAndLog("(too many of those messages mean the stream is not Manchester encoded)"); @@ -725,28 +716,29 @@ int CmdManchesterDemod(const char *Cmd) BitStream[i+14], BitStream[i+15]); } - return 0; + return bit2idx; } /* Modulate our data into manchester */ int CmdManchesterMod(const char *Cmd) { int i, j; - int clock; int bit, lastbit, wave; - - /* Get our clock */ - clock = GetClock(Cmd, 0, 1); - + int clock = GetClock(Cmd, 0, 1); + int clock1 = GetT55x7Clock( GraphBuffer, GraphTraceLen, 0 ); + PrintAndLog("MAN MOD CLOCKS: %d ice %d", clock,clock1); + + int half = (int)(clock/2); + wave = 0; lastbit = 1; for (i = 0; i < (int)(GraphTraceLen / clock); i++) { bit = GraphBuffer[i * clock] ^ 1; - for (j = 0; j < (int)(clock/2); j++) + for (j = 0; j < half; ++j) GraphBuffer[(i * clock) + j] = bit ^ lastbit ^ wave; - for (j = (int)(clock/2); j < clock; j++) + for (j = half; j < clock; ++j) GraphBuffer[(i * clock) + j] = bit ^ lastbit ^ wave ^ 1; /* Keep track of how we start our wave and if we changed or not this time */ @@ -821,8 +813,43 @@ int CmdThreshold(const char *Cmd) if (GraphBuffer[i] >= threshold) GraphBuffer[i] = 1; else - GraphBuffer[i] =- 1; + GraphBuffer[i] = -1; + } + RepaintGraphWindow(); + return 0; +} + +int CmdDirectionalThreshold(const char *Cmd) +{ + int8_t upThres = param_get8(Cmd, 0); + int8_t downThres = param_get8(Cmd, 1); + + printf("Applying Up Threshold: %d, Down Threshold: %d\n", upThres, downThres); + + int lastValue = GraphBuffer[0]; + GraphBuffer[0] = 0; // Will be changed at the end, but init 0 as we adjust to last samples value if no threshold kicks in. + + for (int i = 1; i < GraphTraceLen; ++i) { + // Apply first threshold to samples heading up + if (GraphBuffer[i] >= upThres && GraphBuffer[i] > lastValue) + { + lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it. + GraphBuffer[i] = 1; + } + // Apply second threshold to samples heading down + else if (GraphBuffer[i] <= downThres && GraphBuffer[i] < lastValue) + { + lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it. + GraphBuffer[i] = -1; + } + else + { + lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it. + GraphBuffer[i] = GraphBuffer[i-1]; + + } } + GraphBuffer[0] = GraphBuffer[1]; // Aline with first edited sample. RepaintGraphWindow(); return 0; } @@ -869,7 +896,7 @@ static command_t CommandTable[] = {"detectclock", CmdDetectClockRate, 1, "Detect clock rate"}, {"fskdemod", CmdFSKdemod, 1, "Demodulate graph window as a HID FSK"}, {"grid", CmdGrid, 1, " -- overlay grid on graph window, use zero value to turn off either"}, - {"hexsamples", CmdHexsamples, 0, " [] -- Dump big buffer as hex bytes"}, + {"hexsamples", CmdHexsamples, 0, " [] -- Dump big buffer as hex bytes"}, {"hide", CmdHide, 1, "Hide graph window"}, {"hpf", CmdHpf, 1, "Remove DC offset from trace"}, {"load", CmdLoad, 1, " -- Load trace (to graph window"}, @@ -878,11 +905,12 @@ static command_t CommandTable[] = {"manmod", CmdManchesterMod, 1, "[clock rate] -- Manchester modulate a binary stream"}, {"norm", CmdNorm, 1, "Normalize max/min to +/-500"}, {"plot", CmdPlot, 1, "Show graph window (hit 'h' in window for keystroke help)"}, - {"samples", CmdSamples, 0, "[128 - 16000] -- Get raw samples for graph window"}, + {"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"}, {"zerocrossings", CmdZerocrossings, 1, "Count time between zero-crossings"}, + {"dirthreshold", CmdDirectionalThreshold, 1, " -- Max rising higher up-thres/ Min falling lower down-thres, keep rest as prev."}, {NULL, NULL, 0, NULL} };