git.zerfleddert.de Git - proxmark3-svn/blobdiff

#include "cmdmain.h"

#include "cmddata.h"

#include "lfdemod.h"

#include "cmdmain.h"

#include "cmddata.h"

#include "lfdemod.h"

+#include "usb_cmd.h"

+#include "crc.h"

+#include "crc16.h"

+#include "loclass/cipherutils.h"

+

uint8_t DemodBuffer[MAX_DEMOD_BUF_LEN];

-int DemodBufferLen;

+uint8_t g_debugMode=0;

+size_t DemodBufferLen=0;

static int CmdHelp(const char *Cmd);

//set the demod buffer with given array of binary (one bit per byte)

//by marshmellow

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;

}

DemodBufferLen=size;

return;

}

+int CmdSetDebugMode(const char *Cmd)

+{

+ int demod=0;

+ sscanf(Cmd, "%i", &demod);

+ g_debugMode=(uint8_t)demod;

+ return 1;

+}

+

+int usage_data_printdemodbuf(){

+ PrintAndLog("Usage: data printdemodbuffer x o <offset>");

+ PrintAndLog("Options: ");

+ PrintAndLog(" h This help");

+ PrintAndLog(" x output in hex (omit for binary output)");

+ PrintAndLog(" o <offset> enter offset in # of bits");

+ return 0;

+}

+

//by marshmellow

-void printDemodBuff()

+void printDemodBuff(void)

{

- uint32_t i = 0;

int bitLen = DemodBufferLen;

- if (bitLen<16) {

+ if (bitLen<1) {

PrintAndLog("no bits found in demod buffer");

return;

}

if (bitLen>512) bitLen=512; //max output to 512 bits if we have more - should be plenty

PrintAndLog("no bits found in demod buffer");

return;

}

if (bitLen>512) bitLen=512; //max output to 512 bits if we have more - should be plenty

- 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]);

- }

+

+ char *bin = sprint_bin_break(DemodBuffer,bitLen,16);

+ PrintAndLog("%s",bin);

+

return;

}

return;

}

-

-int CmdAmp(const char *Cmd)

-{

- int i, rising, falling;

- int max = INT_MIN, min = INT_MAX;

-

- for (i = 10; i < GraphTraceLen; ++i) {

- if (GraphBuffer[i] > max)

- max = GraphBuffer[i];

- if (GraphBuffer[i] < min)

- min = GraphBuffer[i];

- }

-

- if (max != min) {

- rising = falling= 0;

- for (i = 0; i < GraphTraceLen; ++i) {

- if (GraphBuffer[i + 1] < GraphBuffer[i]) {

- if (rising) {

- GraphBuffer[i] = max;

- rising = 0;

- }

- falling = 1;

- }

- if (GraphBuffer[i + 1] > GraphBuffer[i]) {

- if (falling) {

- GraphBuffer[i] = min;

- falling = 0;

- }

- rising= 1;

- }

- RepaintGraphWindow();

- return 0;

-}

-

-/*

- * Generic command to demodulate ASK.

- *

- * Argument is convention: positive or negative (High mod means zero

- * or high mod means one)

- *

- * Updates the Graph trace with 0/1 values

- *

- * Arguments:

- * c : 0 or 1

- */

- //this method is dependant on all highs and lows to be the same(or clipped) this creates issues[marshmellow] it also ignores the clock

-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???)

- for (i = 0; i < GraphTraceLen; ++i)

- {

- if (GraphBuffer[i] > high)

- high = GraphBuffer[i];

- else if (GraphBuffer[i] < low)

- low = GraphBuffer[i];

- }

- high=abs(high*.75);

- low=abs(low*.75);

- if (c != 0 && c != 1) {

- PrintAndLog("Invalid argument: %s", Cmd);

- return 0;

- }

- //prime loop

- if (GraphBuffer[0] > 0) {

- GraphBuffer[0] = 1-c;

- } else {

- GraphBuffer[0] = c;

- }

- for (i = 1; i < GraphTraceLen; ++i) {

- /* Transitions are detected at each peak

- * Transitions are either:

- * - we're low: transition if we hit a high

- * - we're high: transition if we hit a low

- * (we need to do it this way because some tags keep high or

- * low for long periods, others just reach the peak and go

- * down)

- */

- //[marhsmellow] change == to >= for high and <= for low for fuzz

- if ((GraphBuffer[i] == high) && (GraphBuffer[i - 1] == c)) {

- GraphBuffer[i] = 1 - c;

- } else if ((GraphBuffer[i] == low) && (GraphBuffer[i - 1] == (1 - c))){

- GraphBuffer[i] = c;

- } else {

- /* No transition */

- GraphBuffer[i] = GraphBuffer[i - 1];

- }

- RepaintGraphWindow();

- return 0;

+int CmdPrintDemodBuff(const char *Cmd)

+{

+ char hex[512]={0x00};

+ bool hexMode = false;

+ bool errors = false;

+ uint8_t offset = 0;

+ char cmdp = 0;

+ while(param_getchar(Cmd, cmdp) != 0x00)

+ {

+ switch(param_getchar(Cmd, cmdp))

+ {

+ case 'h':

+ case 'H':

+ return usage_data_printdemodbuf();

+ case 'x':

+ case 'X':

+ hexMode = true;

+ cmdp++;

+ break;

+ case 'o':

+ case 'O':

+ offset = param_get8(Cmd, cmdp+1);

+ if (!offset) errors = true;

+ cmdp += 2;

+ break;

+ default:

+ PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));

+ errors = true;

+ break;

+ }

+ if(errors) break;

+ }

+ //Validations

+ if(errors) return usage_data_printdemodbuf();

+

+ int numBits = (DemodBufferLen-offset) & 0x7FC; //make sure we don't exceed our string

+

+ if (hexMode){

+ char *buf = (char *) (DemodBuffer + offset);

+ numBits = binarraytohex(hex, buf, numBits);

+ if (numBits==0) return 0;

+ PrintAndLog("DemodBuffer: %s",hex);

+ } else {

+ //setDemodBuf(DemodBuffer, DemodBufferLen-offset, offset);

+ char *bin = sprint_bin_break(DemodBuffer+offset,numBits,16);

+ PrintAndLog("DemodBuffer:\n%s",bin);

+ }

+ return 1;

}

//by marshmellow

}

//by marshmellow

-void printBitStream(uint8_t BitStream[], uint32_t bitLen)

-{

- uint32_t i = 0;

- if (bitLen<16) {

- PrintAndLog("Too few bits found: %d",bitLen);

- return;

- }

- if (bitLen>512) bitLen=512;

- 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]);

- }

- return;

+//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

-//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)));

- }

- //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));

+//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)));

+ }

}

- 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;

+ }

+

+ 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;

}

-//by marshmellow

-//take binary from demod buffer and see if we can find an EM410x ID

-int CmdEm410xDecode(const char *Cmd)

+int AskEm410xDecode(bool verbose, uint32_t *hi, uint64_t *lo )

{

- 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;

+ size_t idx = 0;

+ size_t BitLen = DemodBufferLen;

+ uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};

+ memcpy(BitStream, DemodBuffer, BitLen);

+ 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: ");

+ printEM410x(*hi, *lo);

+ }

+ return 1;

+ }

+ return 0;

}

+int AskEm410xDemod(const char *Cmd, uint32_t *hi, uint64_t *lo, bool verbose)

+{

+ if (!ASKDemod(Cmd, FALSE, FALSE, 1)) return 0;

+ return AskEm410xDecode(verbose, hi, lo);

+}

//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

//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(" <invert>, 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;

+ }

+ uint64_t lo = 0;

+ uint32_t hi = 0;

+ return AskEm410xDemod(Cmd, &hi, &lo, true);

+}

+

+//by marshmellow

+//Cmd Args: Clock, invert, maxErr, maxLen as integers and amplify as char == 'a'

+// (amp may not be needed anymore)

+//verbose will print results and demoding messages

+//emSearch will auto search for EM410x format in bitstream

+//askType switches decode: ask/raw = 0, ask/manchester = 1

+int ASKDemod(const char *Cmd, bool verbose, bool emSearch, uint8_t askType)

{

int invert=0;

int clk=0;

{

int invert=0;

int clk=0;

- uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};

- sscanf(Cmd, "%i %i", &clk, &invert);

- if (invert != 0 && invert != 1) {

- PrintAndLog("Invalid argument: %s", Cmd);

- return 0;

- }

-

+ int maxErr=100;

+ int maxLen=0;

+ uint8_t askAmp = 0;

+ char amp = param_getchar(Cmd, 0);

+ uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};

+ sscanf(Cmd, "%i %i %i %i %c", &clk, &invert, &maxErr, &maxLen, &amp);

+ if (!maxLen) maxLen = 512*64;

+ if (invert != 0 && invert != 1) {

+ PrintAndLog("Invalid argument: %s", Cmd);

+ return 0;

+ }

+ if (clk==1){

+ invert=1;

+ clk=0;

+ }

+ if (amp == 'a' || amp == 'A') askAmp=1;

size_t BitLen = getFromGraphBuf(BitStream);

- // PrintAndLog("DEBUG: Bitlen from grphbuff: %d",BitLen);

- int errCnt=0;

- errCnt = askmandemod(BitStream, &BitLen,&clk,&invert);

- 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);

- return 0;

- }

- PrintAndLog("\nUsing Clock: %d - Invert: %d - Bits Found: %d",clk,invert,BitLen);

-

- //output

- if (errCnt>0){

- PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt);

- }

- PrintAndLog("ASK/Manchester decoded bitstream:");

- // Now output the bitstream to the scrollback by line of 16 bits

- setDemodBuf(BitStream,BitLen);

- 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;

- }

- //if (BitLen>16) return 1;

- return 0;

+ if (g_debugMode) PrintAndLog("DEBUG: Bitlen from grphbuff: %d",BitLen);

+ if (BitLen<255) return 0;

+ if (maxLen<BitLen && maxLen != 0) BitLen = maxLen;

+

+ int errCnt = askdemod(BitStream, &BitLen, &clk, &invert, maxErr, askAmp, askType);

+ if (errCnt<0 || BitLen<16){ //if fatal error (or -1)

+ if (g_debugMode) PrintAndLog("DEBUG: no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt,invert,BitLen,clk);

+ return 0;

+ }

+ if (errCnt>maxErr){

+ if (g_debugMode) PrintAndLog("DEBUG: Too many errors found, errors:%d, bits:%d, clock:%d",errCnt, BitLen, clk);

+ return 0;

+ }

+ if (verbose || g_debugMode) PrintAndLog("\nUsing Clock:%d, Invert:%d, Bits Found:%d",clk,invert,BitLen);

+

+ //output

+ setDemodBuf(BitStream,BitLen,0);

+ if (verbose || g_debugMode){

+ if (errCnt>0) PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt);

+ if (askType) PrintAndLog("ASK/Manchester - Clock: %d - Decoded bitstream:",clk);

+ else PrintAndLog("ASK/Raw - Clock: %d - Decoded bitstream:",clk);

+ // Now output the bitstream to the scrollback by line of 16 bits

+ printDemodBuff();

+

+ }

+ uint64_t lo = 0;

+ uint32_t hi = 0;

+ if (emSearch){

+ AskEm410xDecode(true, &hi, &lo);

+ }

+ return 1;

+}

+

+//by marshmellow

+//takes 5 arguments - clock, invert, maxErr, maxLen as integers and amplify as char == 'a'

+//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) > 25 || cmdp == 'h' || cmdp == 'H') {

+ PrintAndLog("Usage: data rawdemod am [clock] <invert> [maxError] [maxLen] [amplify]");

+ PrintAndLog(" [set clock as integer] optional, if not set, autodetect");

+ PrintAndLog(" <invert>, 1 to invert output");

+ PrintAndLog(" [set maximum allowed errors], default = 100");

+ PrintAndLog(" [set maximum Samples to read], default = 32768 (512 bits at rf/64)");

+ PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp");

+ 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 ASKDemod(Cmd, TRUE, TRUE, 1);

}

//by marshmellow

}

//by marshmellow

//stricktly take 10 and 01 and convert to 0 and 1

int Cmdmandecoderaw(const char *Cmd)

{

//stricktly take 10 and 01 and convert to 0 and 1

int Cmdmandecoderaw(const char *Cmd)

{

- int i =0;

- int errCnt=0;

+ int i =0;

+ int errCnt=0;

size_t size=0;

- uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};

- int high=0,low=0;

+ int invert=0;

+ int maxErr = 20;

+ char cmdp = param_getchar(Cmd, 0);

+ if (strlen(Cmd) > 5 || cmdp == 'h' || cmdp == 'H') {

+ PrintAndLog("Usage: data manrawdecode [invert] [maxErr]");

+ PrintAndLog(" Takes 10 and 01 and converts to 0 and 1 respectively");

+ PrintAndLog(" --must have binary sequence in demodbuffer (run data askrawdemod first)");

+ PrintAndLog(" [invert] invert output");

+ PrintAndLog(" [maxErr] set number of errors allowed (default = 20)");

+ PrintAndLog("");

+ PrintAndLog(" sample: data manrawdecode = decode manchester bitstream from the demodbuffer");

+ return 0;

+ }

+ if (DemodBufferLen==0) return 0;

+ uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};

+ int high=0,low=0;

for (;i<DemodBufferLen;++i){

if (DemodBuffer[i]>high) high=DemodBuffer[i];

else if(DemodBuffer[i]<low) low=DemodBuffer[i];

BitStream[i]=DemodBuffer[i];

for (;i<DemodBufferLen;++i){

if (DemodBuffer[i]>high) high=DemodBuffer[i];

else if(DemodBuffer[i]<low) low=DemodBuffer[i];

BitStream[i]=DemodBuffer[i];

- }

- if (high>1 || low <0 ){

- PrintAndLog("Error: please raw demod the wave first then mancheseter raw decode");

- return 0;

- }

+ }

+ if (high>7 || low <0 ){

+ PrintAndLog("Error: please raw demod the wave first then manchester raw decode");

+ return 0;

+ }

+

+ sscanf(Cmd, "%i %i", &invert, &maxErr);

size=i;

- errCnt=manrawdecode(BitStream, &size);

- if (errCnt>=20){

- PrintAndLog("Too many errors: %d",errCnt);

- return 0;

- }

- PrintAndLog("Manchester Decoded - # errors:%d - data:",errCnt);

- printBitStream(BitStream, size);

- if (errCnt==0){

+ errCnt=manrawdecode(BitStream, &size, invert);

+ if (errCnt>=maxErr){

+ PrintAndLog("Too many errors: %d",errCnt);

+ return 0;

+ }

+ PrintAndLog("Manchester Decoded - # errors:%d - data:",errCnt);

+ PrintAndLog("%s", sprint_bin_break(BitStream, size, 16));

+ if (errCnt==0){

uint64_t id = 0;

- id = Em410xDecode(BitStream, size);

- if (id>0) setDemodBuf(BitStream, size);

- printEM410x(id);

- }

- return 1;

+ 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;

}

//by marshmellow

//biphase decode

//take 01 or 10 = 0 and 11 or 00 = 1

}

//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

-// 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

-// (better would be to demod and decode at the same time so we can distinguish large

-// width waves vs small width waves to help the decode positioning) or askbiphdemod

+//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

+// the argument offset allows us to manually shift if the output is incorrect - [EDIT: now auto detects]

int CmdBiphaseDecodeRaw(const char *Cmd)

{

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 (;i<DemodBufferLen;++i){

- if(DemodBuffer[i]>high)high=DemodBuffer[i];

- else if(DemodBuffer[i]<low)low=DemodBuffer[i];

- BitStream[i]=DemodBuffer[i];

- }

- if (high>1 || low <0){

- PrintAndLog("Error: please raw demod the wave first then decode");

- return 0;

- }

- size=i;

- errCnt=BiphaseRawDecode(BitStream, &size, offset);

- if (errCnt>=20){

- PrintAndLog("Too many errors attempting to decode: %d",errCnt);

- return 0;

- }

- PrintAndLog("Biphase Decoded using offset: %d - # errors:%d - data:",offset,errCnt);

- printBitStream(BitStream, size);

- PrintAndLog("\nif bitstream does not look right try offset=1");

- return 1;

-}

+ int offset=0, invert=0, maxErr=20, errCnt=0;

+ char cmdp = param_getchar(Cmd, 0);

+ if (strlen(Cmd) > 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;

+ }

+ sscanf(Cmd, "%i %i %i", &offset, &invert, &maxErr);

+ if (DemodBufferLen==0){

+ PrintAndLog("DemodBuffer Empty - run 'data rawdemod ar' first");

+ return 0;

+ }

+ 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;

+ }

+ if (errCnt>0){

+ PrintAndLog("# Errors found during Demod (shown as 7 in bit stream): %d",errCnt);

+ }

+ PrintAndLog("Biphase Decoded using offset: %d - # invert:%d - data:",offset,invert);

+ PrintAndLog("%s", sprint_bin_break(BitStream, size, 16));

+

+ if (offset) setDemodBuf(DemodBuffer,DemodBufferLen-offset, offset); //remove first bit from raw demod

+ return 1;

+}

//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 Cmdaskrawdemod(const char *Cmd)

+// - ASK Demod then Biphase decode GraphBuffer samples

+int ASKbiphaseDemod(const char *Cmd, bool verbose)

{

- int invert=0;

- int clk=0;

- uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};

- sscanf(Cmd, "%i %i", &clk, &invert);

- if (invert != 0 && invert != 1) {

- PrintAndLog("Invalid argument: %s", Cmd);

- return 0;

- }

- size_t BitLen = getFromGraphBuf(BitStream);

- int errCnt=0;

- errCnt = askrawdemod(BitStream, &BitLen,&clk,&invert);

- if (errCnt==-1||BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first)

- PrintAndLog("no data found");

- return 0;

+ //ask raw demod GraphBuffer first

+ int offset=0, clk=0, invert=0, maxErr=0;

+ sscanf(Cmd, "%i %i %i %i", &offset, &clk, &invert, &maxErr);

+

+ uint8_t BitStream[MAX_DEMOD_BUF_LEN];

+ size_t size = getFromGraphBuf(BitStream);

+ //invert here inverts the ask raw demoded bits which has no effect on the demod, but we need the pointer

+ int errCnt = askdemod(BitStream, &size, &clk, &invert, maxErr, 0, 0);

+ if ( errCnt < 0 || errCnt > maxErr ) {

+ if (g_debugMode) PrintAndLog("DEBUG: no data or error found %d, clock: %d", errCnt, clk);

+ return 0;

+ }

+

+ //attempt to Biphase decode BitStream

+ 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;

}

- PrintAndLog("Using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen);

- //PrintAndLog("Data start pos:%d, lastBit:%d, stop pos:%d, numBits:%d",iii,lastBit,i,bitnum);

- //move BitStream back to DemodBuffer

- setDemodBuf(BitStream,BitLen);

-

- //output

- if (errCnt>0){

- 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);

+ //success set DemodBuffer and return

+ setDemodBuf(BitStream, size, 0);

+ if (g_debugMode || verbose){

+ PrintAndLog("Biphase Decoded using offset: %d - clock: %d - # errors:%d - data:",offset,clk,errCnt);

+ printDemodBuff();

+ }

+ return 1;

+}

+//by marshmellow - see ASKbiphaseDemod

+int Cmdaskbiphdemod(const char *Cmd)

+{

+ char cmdp = param_getchar(Cmd, 0);

+ if (strlen(Cmd) > 25 || cmdp == 'h' || cmdp == 'H') {

+ PrintAndLog("Usage: data rawdemod ab [offset] [clock] <invert> [maxError] [maxLen] <amplify>");

+ PrintAndLog(" [offset], offset to begin biphase, default=0");

+ PrintAndLog(" [set clock as integer] optional, if not set, autodetect");

+ PrintAndLog(" <invert>, 1 to invert output");

+ PrintAndLog(" [set maximum allowed errors], default = 100");

+ PrintAndLog(" [set maximum Samples to read], default = 32768 (512 bits at rf/64)");

+ PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp");

+ PrintAndLog(" NOTE: <invert> can be entered as second or third argument");

+ PrintAndLog(" NOTE: <amplify> 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 0 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 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);

+}

- return 1;

+//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<size-6; idx++){

+ if ((idx+1) % 5 == 0){

+ //spacer bit - should be 0

+ if (DemodBuffer[startIdx+idx] != 0) {

+ if (g_debugMode) PrintAndLog("Error spacer not 0: %d, pos: %d",DemodBuffer[startIdx+idx],startIdx+idx);

+ return 0;

+ }

+ continue;

+ }

+ if (keyCnt<8){ //lsb first

+ xorKey = xorKey | (DemodBuffer[startIdx+idx]<<keyCnt);

+ keyCnt++;

+ if (keyCnt==8 && g_debugMode) PrintAndLog("xorKey Found: %02x", xorKey);

+ continue;

+ }

+ //lsb first

+ ByteStream[ByteCnt] = ByteStream[ByteCnt] | (DemodBuffer[startIdx+idx]<<bitCnt);

+ bitCnt++;

+ if (bitCnt % 8 == 0){

+ if (g_debugMode) PrintAndLog("byte %d: %02x",ByteCnt,ByteStream[ByteCnt]);

+ bitCnt=0;

+ ByteCnt++;

+ }

+ for (uint8_t i = 0; i < ByteCnt; i++){

+ ByteStream[i] ^= xorKey; //xor

+ if (g_debugMode) PrintAndLog("byte %d after xor: %02x", i, ByteStream[i]);

+ }

+ //now ByteStream contains 64 bytes of decrypted raw tag data

+ //

+ uint8_t fmtLen = ByteStream[0]>>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;

}

-int CmdAutoCorr(const char *Cmd)

+//by marshmellow

+//see ASKDemod for what args are accepted

+int CmdVikingDemod(const char *Cmd)

{

- static int CorrelBuffer[MAX_GRAPH_TRACE_LEN];

+ if (!ASKDemod(Cmd, false, false, 1)) {

+ if (g_debugMode) PrintAndLog("ASKDemod failed");

+ return 0;

+ }

+ size_t size = DemodBufferLen;

+ //call lfdemod.c demod for Viking

+ int ans = VikingDemod_AM(DemodBuffer, &size);

+ if (ans < 0) {

+ if (g_debugMode) PrintAndLog("Error Viking_Demod %d", ans);

+ return 0;

+ }

+ //got a good demod

+ uint32_t raw1 = bytebits_to_byte(DemodBuffer+ans, 32);

+ uint32_t raw2 = bytebits_to_byte(DemodBuffer+ans+32, 32);

+ uint32_t cardid = bytebits_to_byte(DemodBuffer+ans+24, 32);

+ uint8_t checksum = bytebits_to_byte(DemodBuffer+ans+32+24, 8);

+ PrintAndLog("Viking Tag Found: Card ID %08X, Checksum: %02X", cardid, checksum);

+ PrintAndLog("Raw: %08X%08X", raw1,raw2);

+ setDemodBuf(DemodBuffer+ans, 64, 0);

+ return 1;

+}

- int window = atoi(Cmd);

+//by marshmellow - see ASKDemod

+int Cmdaskrawdemod(const char *Cmd)

+{

+ char cmdp = param_getchar(Cmd, 0);

+ if (strlen(Cmd) > 25 || cmdp == 'h' || cmdp == 'H') {

+ PrintAndLog("Usage: data rawdemod ar [clock] <invert> [maxError] [maxLen] [amplify]");

+ PrintAndLog(" [set clock as integer] optional, if not set, autodetect");

+ PrintAndLog(" <invert>, 1 to invert output");

+ PrintAndLog(" [set maximum allowed errors], default = 100");

+ PrintAndLog(" [set maximum Samples to read], default = 32768 (1024 bits at rf/64)");

+ PrintAndLog(" <amplify>, '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 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 ASKDemod(Cmd, TRUE, FALSE, 0);

+}

- if (window == 0) {

- PrintAndLog("needs a window");

- return 0;

- }

- if (window >= GraphTraceLen) {

- PrintAndLog("window must be smaller than trace (%d samples)",

- GraphTraceLen);

- return 0;

- }

+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;

+ }

+ 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);

- PrintAndLog("performing %d correlations", GraphTraceLen - window);

+ if (SaveGrph){

+ GraphTraceLen = GraphTraceLen - window;

+ memcpy(GraphBuffer, CorrelBuffer, GraphTraceLen * sizeof (int));

+ RepaintGraphWindow();

+ }

+ return Correlation;

+}

- 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;

- }

- GraphTraceLen = GraphTraceLen - window;

- memcpy(GraphBuffer, CorrelBuffer, GraphTraceLen * sizeof (int));

+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;

+}

- RepaintGraphWindow();

- 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 CmdBitsamples(const char *Cmd)

{

- int cnt = 0;

- uint8_t got[12288];

-

- GetFromBigBuf(got,sizeof(got),0);

- WaitForResponse(CMD_ACK,NULL);

+ int cnt = 0;

+ uint8_t got[12288];

+

+ GetFromBigBuf(got,sizeof(got),0);

+ WaitForResponse(CMD_ACK,NULL);

+

+ for (int j = 0; j < sizeof(got); j++) {

+ for (int k = 0; k < 8; k++) {

+ if(got[j] & (1 << (7 - k))) {

+ GraphBuffer[cnt++] = 1;

+ } else {

+ GraphBuffer[cnt++] = 0;

+ }

+ GraphTraceLen = cnt;

+ RepaintGraphWindow();

+ return 0;

+}

- for (int j = 0; j < sizeof(got); j++) {

- for (int k = 0; k < 8; k++) {

- if(got[j] & (1 << (7 - k))) {

- GraphBuffer[cnt++] = 1;

- } else {

- GraphBuffer[cnt++] = 0;

- }

- GraphTraceLen = cnt;

- RepaintGraphWindow();

- return 0;

+int CmdBuffClear(const char *Cmd)

+{

+ UsbCommand c = {CMD_BUFF_CLEAR};

+ SendCommand(&c);

+ ClearGraph(true);

+ return 0;

}

-/*

- * Convert to a bitstream

+int CmdDec(const char *Cmd)

+{

+ for (int i = 0; i < (GraphTraceLen / 2); ++i)

+ GraphBuffer[i] = GraphBuffer[i * 2];

+ GraphTraceLen /= 2;

+ PrintAndLog("decimated by 2");

+ 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 CmdBitstream(const char *Cmd)

-{

- int i, j;

- int bit;

- int gtl;

- int clock;

- int low = 0;

- int high = 0;

- int hithigh, hitlow, first;

-

- /* Detect high and lows and clock */

- for (i = 0; i < GraphTraceLen; ++i)

- {

- if (GraphBuffer[i] > high)

- high = GraphBuffer[i];

- else if (GraphBuffer[i] < low)

- low = GraphBuffer[i];

- }

-

- /* Get our clock */

- clock = GetClock(Cmd, high, 1);

- gtl = ClearGraph(0);

-

- bit = 0;

- for (i = 0; i < (int)(gtl / clock); ++i)

- {

- hithigh = 0;

- hitlow = 0;

- first = 1;

- /* Find out if we hit both high and low peaks */

- for (j = 0; j < clock; ++j)

- {

- if (GraphBuffer[(i * clock) + j] == high)

- hithigh = 1;

- else if (GraphBuffer[(i * clock) + j] == low)

- hitlow = 1;

- /* it doesn't count if it's the first part of our read

- because it's really just trailing from the last sequence */

- if (first && (hithigh || hitlow))

- hithigh = hitlow = 0;

- else

- first = 0;

-

- if (hithigh && hitlow)

- break;

- }

-

- /* If we didn't hit both high and low peaks, we had a bit transition */

- if (!hithigh || !hitlow)

- 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();

- return 0;

+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;

}

-int CmdBuffClear(const char *Cmd)

+//by marshmellow

+//shift graph zero up or down based on input + or -

+int CmdGraphShiftZero(const char *Cmd)

{

- UsbCommand c = {CMD_BUFF_CLEAR};

- SendCommand(&c);

- ClearGraph(true);

- return 0;

+

+ int shift=0;

+ //set options from parameters entered with the command

+ sscanf(Cmd, "%i", &shift);

+ int shiftedVal=0;

+ for(int i = 0; i<GraphTraceLen; i++){

+ shiftedVal=GraphBuffer[i]+shift;

+ if (shiftedVal>127)

+ shiftedVal=127;

+ else if (shiftedVal<-127)

+ shiftedVal=-127;

+ GraphBuffer[i]= shiftedVal;

+ }

+ CmdNorm("");

+ return 0;

}

-int CmdDec(const char *Cmd)

+//by marshmellow

+//use large jumps in read samples to identify edges of waves and then amplify that wave to max

+//similar to dirtheshold, threshold commands

+//takes a threshold length which is the measured length between two samples then determines an edge

+int CmdAskEdgeDetect(const char *Cmd)

{

- for (int i = 0; i < (GraphTraceLen / 2); ++i)

- GraphBuffer[i] = GraphBuffer[i * 2];

- GraphTraceLen /= 2;

- PrintAndLog("decimated by 2");

- RepaintGraphWindow();

- return 0;

+ int thresLen = 25;

+ sscanf(Cmd, "%i", &thresLen);

+

+ for(int i = 1; i<GraphTraceLen; i++){

+ if (GraphBuffer[i]-GraphBuffer[i-1]>=thresLen) //large jump up

+ GraphBuffer[i-1] = 127;

+ else if(GraphBuffer[i]-GraphBuffer[i-1]<=-1*thresLen) //large jump down

+ GraphBuffer[i-1] = -127;

+ }

+ RepaintGraphWindow();

+ return 0;

}

/* Print our clock rate */

// uses data from graphbuffer

}

/* 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)

{

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) > 6 || strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') {

+ PrintAndLog("Usage: data detectclock [modulation] <clock>");

+ PrintAndLog(" [modulation as char], specify the modulation type you want to detect the clock of");

+ PrintAndLog(" <clock> , specify the clock (optional - to get best start position only)");

+ 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(Cmd+1, 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;

+}

+

+char *GetFSKType(uint8_t fchigh, uint8_t fclow, uint8_t invert)

+{

+ char *fskType;

+ if (fchigh==10 && fclow==8){

+ if (invert) //fsk2a

+ fskType = "FSK2a";

+ else //fsk2

+ fskType = "FSK2";

+ } else if (fchigh == 8 && fclow == 5) {

+ if (invert)

+ fskType = "FSK1";

+ else

+ fskType = "FSK1a";

+ } else {

+ fskType = "FSK??";

+ }

+ return fskType;

+}

+

+//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 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 = 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) {

+ if (rfLen==1){

+ invert = 1; //if invert option only is used

+ rfLen = 0;

+ }

+

+ uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};

+ size_t BitLen = getFromGraphBuf(BitStream);

+ if (BitLen==0) return 0;

+ //get field clock lengths

+ uint16_t fcs=0;

+ 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;

+ }

+ int size = fskdemod(BitStream,BitLen,(uint8_t)rfLen,(uint8_t)invert,(uint8_t)fchigh,(uint8_t)fclow);

+ if (size>0){

+ setDemodBuf(BitStream,size,0);

+

+ // Now output the bitstream to the scrollback by line of 16 bits

+ if (verbose || g_debugMode) {

+ PrintAndLog("\nUsing Clock:%d, invert:%d, fchigh:%d, fclow:%d", rfLen, invert, fchigh, fclow);

+ PrintAndLog("%s decoded bitstream:",GetFSKType(fchigh,fclow,invert));

+ printDemodBuff();

+ }

+

+ return 1;

+ } else{

+ if (g_debugMode) 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] <invert> [fchigh] [fclow]");

+ PrintAndLog(" [set clock as integer] optional, omit for autodetect.");

+ PrintAndLog(" <invert>, 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

+int CmdFSKdemodHID(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 = 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){ //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);

+ }

+ else { //standard HID tags <38 bits

+ 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 & 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;

+ idx3++;

+ }

+ fmtLen =idx3+19;

+ fc =0;

+ cardnum=0;

+ if(fmtLen==26){

+ cardnum = (lo>>1)&0xFFFF;

+ fc = (lo>>17)&0xFF;

+ }

+ if(fmtLen==34){

+ cardnum = (lo>>1)&0xFFFF;

+ fc= ((hi&1)<<15)|(lo>>17);

+ }

+ if(fmtLen==35){

+ cardnum = (lo>>1)&0xFFFFF;

+ fc = ((hi&1)<<11)|(lo>>21);

+ }

+ else { //if bit 38 is not set then 37 bit format is used

+ fmtLen = 37;

+ fc = 0;

+ cardnum = 0;

+ if(fmtLen == 37){

+ cardnum = (lo>>1)&0x7FFFF;

+ fc = ((hi&0xF)<<12)|(lo>>20);

+ }

+ 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,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

+//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

}

//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)

+//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)

{

- //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;

- //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;

+ 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;

}

- 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 (size>0){

- PrintAndLog("FSK decoded bitstream:");

- setDemodBuf(BitStream,size);

- // 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);

- } else{

- PrintAndLog("no FSK data found");

- }

- 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 (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

-int CmdFSKdemodHID(const char *Cmd)

+//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

- uint32_t hi2=0, hi=0, lo=0;

+ //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;

+ }

- uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};

- size_t BitLen = getFromGraphBuf(BitStream);

- //get binary from fsk wave

- size_t size = HIDdemodFSK(BitStream,BitLen,&hi2,&hi,&lo);

- if (size<0){

- PrintAndLog("Error demoding fsk");

- 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

- uint8_t idx3 = 1;

- while(lo2>1){ //find last bit set to 1 (format len bit)

- lo2=lo2>>1;

- idx3++;

- }

- fmtLen =idx3+19;

- fc =0;

- cardnum=0;

- if(fmtLen==26){

- 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);

- }

- if(fmtLen==35){

- cardnum = (lo>>1)&0xFFFFF;

- fc = ((hi&1)<<11)|(lo>>21);

- }

- else { //if bit 38 is not set then 37 bit format is used

- fmtLen= 37;

- fc =0;

- cardnum=0;

- if(fmtLen==37){

- cardnum = (lo>>1)&0x7FFFF;

- fc = ((hi&0xF)<<12)|(lo>>20);

- }

+ // 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; j<size; j++){

+ if(BitStream[j]) break;

+ }

+ uint8_t fmtLen = size-j-8;

+ uint32_t fc = 0;

+ uint32_t cardnum = 0;

+ uint32_t code1 = 0;

+ if (fmtLen==26){

+ fc = bytebits_to_byte(BitStream+73, 8);

+ cardnum = bytebits_to_byte(BitStream+81, 16);

+ code1 = bytebits_to_byte(BitStream+72,fmtLen);

+ PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %08x%08x%08x%08x", fmtLen, fc, cardnum, code1, rawHi3, rawHi2, rawHi, rawLo);

+ } else if (fmtLen==45){

+ fmtLen=42; //end = 10 bits not 7 like 26 bit fmt

+ fc = bytebits_to_byte(BitStream+53, 10);

+ cardnum = bytebits_to_byte(BitStream+63, 32);

+ PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Raw: %08x%08x%08x%08x", fmtLen, fc, cardnum, rawHi3, rawHi2, rawHi, rawLo);

+ } else {

+ cardnum = bytebits_to_byte(BitStream+81, 16);

+ if (fmtLen>32){

+ //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);

}

- 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;

+ }

+ 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;

}

-//by marshmellow

-//IO-Prox demod - FSK RF/64 with preamble of 000000001

-//print ioprox ID and some format details

-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;

- uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};

- size_t BitLen = getFromGraphBuf(BitStream);

- //get binary from fsk wave

- // PrintAndLog("DEBUG: got buff");

- idx = IOdemodFSK(BitStream,BitLen);

- if (idx<0){

- //PrintAndLog("Error demoding fsk");

- return 0;

- }

- // PrintAndLog("DEBUG: Got IOdemodFSK");

- if (idx==0){

- //PrintAndLog("IO Prox Data not found - FSK Data:");

- //if (BitLen > 92) printBitStream(BitStream,92);

- 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) 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]);

+// 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

+// NATIONAL CODE, ICAR database

+// COUNTRY CODE (ISO3166) or http://cms.abvma.ca/uploads/ManufacturersISOsandCountryCodes.pdf

+// FLAG (animal/non-animal)

+int CmdFDXBdemodBI(const char *Cmd){

+

+ int invert = 1;

+ int clk = 32;

+ int errCnt = 0;

+ int maxErr = 0;

+ uint8_t BitStream[MAX_DEMOD_BUF_LEN];

+ size_t size = getFromGraphBuf(BitStream);

+

+ errCnt = askdemod(BitStream, &size, &clk, &invert, maxErr, 0, 0);

+ if ( errCnt < 0 || errCnt > maxErr ) {

+ if (g_debugMode) PrintAndLog("DEBUG: no data or error found %d, clock: %d", errCnt, clk);

+ return 0;

+ }

- 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

- 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++];

-

- DemodBufferLen=64;

- return 1;

-}

-int CmdFSKdemod(const char *Cmd) //old CmdFSKdemod needs updating

-{

- static const int LowTone[] = {

- 1, 1, 1, 1, 1, -1, -1, -1, -1, -1,

- 1, 1, 1, 1, 1, -1, -1, -1, -1, -1

- };

- static const int HighTone[] = {

- 1, 1, 1, 1, 1, -1, -1, -1, -1,

- 1, 1, 1, 1, -1, -1, -1, -1,

- 1, 1, 1, 1, -1, -1, -1, -1, -1,

- };

-

- int lowLen = sizeof (LowTone) / sizeof (int);

- int highLen = sizeof (HighTone) / sizeof (int);

- int convLen = (highLen > lowLen) ? highLen : lowLen;

- uint32_t hi = 0, lo = 0;

-

- int i, j;

- int minMark = 0, maxMark = 0;

-

- for (i = 0; i < GraphTraceLen - convLen; ++i) {

- int lowSum = 0, highSum = 0;

-

- for (j = 0; j < lowLen; ++j) {

- lowSum += LowTone[j]*GraphBuffer[i+j];

- }

- for (j = 0; j < highLen; ++j) {

- highSum += HighTone[j] * GraphBuffer[i + j];

- }

- lowSum = abs(100 * lowSum / lowLen);

- highSum = abs(100 * highSum / highLen);

- GraphBuffer[i] = (highSum << 16) | lowSum;

- }

-

- for(i = 0; i < GraphTraceLen - convLen - 16; ++i) {

- int lowTot = 0, highTot = 0;

- // 10 and 8 are f_s divided by f_l and f_h, rounded

- for (j = 0; j < 10; ++j) {

- lowTot += (GraphBuffer[i+j] & 0xffff);

- }

- for (j = 0; j < 8; j++) {

- highTot += (GraphBuffer[i + j] >> 16);

- }

- GraphBuffer[i] = lowTot - highTot;

- if (GraphBuffer[i] > maxMark) maxMark = GraphBuffer[i];

- if (GraphBuffer[i] < minMark) minMark = GraphBuffer[i];

- }

-

- GraphTraceLen -= (convLen + 16);

- RepaintGraphWindow();

-

- // Find bit-sync (3 lo followed by 3 high) (HID ONLY)

- int max = 0, maxPos = 0;

- for (i = 0; i < 6000; ++i) {

- int dec = 0;

- for (j = 0; j < 3 * lowLen; ++j) {

- dec -= GraphBuffer[i + j];

- }

- for (; j < 3 * (lowLen + highLen ); ++j) {

- dec += GraphBuffer[i + j];

- }

- if (dec > max) {

- max = dec;

- maxPos = i;

- }

-

- // place start of bit sync marker in graph

- GraphBuffer[maxPos] = maxMark;

- GraphBuffer[maxPos + 1] = minMark;

-

- maxPos += j;

-

- // place end of bit sync marker in graph

- GraphBuffer[maxPos] = maxMark;

- GraphBuffer[maxPos+1] = minMark;

-

- PrintAndLog("actual data bits start at sample %d", maxPos);

- PrintAndLog("length %d/%d", highLen, lowLen);

-

- uint8_t bits[46];

- bits[sizeof(bits)-1] = '\0';

-

- // find bit pairs and manchester decode them

- for (i = 0; i < arraylen(bits) - 1; ++i) {

- int dec = 0;

- for (j = 0; j < lowLen; ++j) {

- dec -= GraphBuffer[maxPos + j];

- }

- for (; j < lowLen + highLen; ++j) {

- dec += GraphBuffer[maxPos + j];

- }

- maxPos += j;

- // place inter bit marker in graph

- GraphBuffer[maxPos] = maxMark;

- GraphBuffer[maxPos + 1] = minMark;

-

- // hi and lo form a 64 bit pair

- hi = (hi << 1) | (lo >> 31);

- lo = (lo << 1);

- // store decoded bit as binary (in hi/lo) and text (in bits[])

- if(dec < 0) {

- bits[i] = '1';

- lo |= 1;

- } else {

- bits[i] = '0';

- }

- PrintAndLog("bits: '%s'", bits);

- PrintAndLog("hex: %08x %08x", hi, lo);

- return 0;

-}

-

-int CmdDetectNRZpskClockRate(const char *Cmd)

-{

- GetNRZpskClock("",0,0);

- return 0;

+ errCnt = BiphaseRawDecode(BitStream, &size, maxErr, 1);

+ if (errCnt < 0 || errCnt > maxErr ) {

+ if (g_debugMode) PrintAndLog("Error BiphaseRawDecode: %d", errCnt);

+ return 0;

+ }

+

+ int preambleIndex = FDXBdemodBI(BitStream, &size);

+ if (preambleIndex < 0){

+ if (g_debugMode) PrintAndLog("Error FDXBDemod , no startmarker found :: %d",preambleIndex);

+ return 0;

+ }

+ if (size != 128) {

+ if (g_debugMode) PrintAndLog("Error incorrect data length found");

+ return 0;

+ }

+

+ setDemodBuf(BitStream, 128, preambleIndex);

+

+ // remove marker bits (1's every 9th digit after preamble) (pType = 2)

+ size = removeParity(BitStream, preambleIndex + 11, 9, 2, 117);

+ if ( size != 104 ) {

+ if (g_debugMode) PrintAndLog("Error removeParity:: %d", size);

+ return 0;

+ }

+ if (g_debugMode) {

+ char *bin = sprint_bin_break(BitStream,size,16);

+ PrintAndLog("DEBUG BinStream:\n%s",bin);

+ }

+ PrintAndLog("\nFDX-B / ISO 11784/5 Animal Tag ID Found:");

+ if (g_debugMode) PrintAndLog("Start marker %d; Size %d", preambleIndex, size);

+

+ //got a good demod

+ uint64_t NationalCode = ((uint64_t)(bytebits_to_byteLSBF(BitStream+32,6)) << 32) | bytebits_to_byteLSBF(BitStream,32);

+ uint32_t countryCode = bytebits_to_byteLSBF(BitStream+38,10);

+ uint8_t dataBlockBit = BitStream[48];

+ uint32_t reservedCode = bytebits_to_byteLSBF(BitStream+49,14);

+ uint8_t animalBit = BitStream[63];

+ uint32_t crc16 = bytebits_to_byteLSBF(BitStream+64,16);

+ uint32_t extended = bytebits_to_byteLSBF(BitStream+80,24);

+

+ uint64_t rawid = ((uint64_t)bytebits_to_byte(BitStream,32)<<32) | bytebits_to_byte(BitStream+32,32);

+ uint8_t raw[8];

+ num_to_bytes(rawid, 8, raw);

+

+ if (g_debugMode) PrintAndLog("Raw ID Hex: %s", sprint_hex(raw,8));

+

+ uint16_t calcCrc = crc16_ccitt_kermit(raw, 8);

+ PrintAndLog("Animal ID: %04u-%012llu", countryCode, NationalCode);

+ PrintAndLog("National Code: %012llu", NationalCode);

+ PrintAndLog("CountryCode: %04u", countryCode);

+ PrintAndLog("Extended Data: %s", dataBlockBit ? "True" : "False");

+ PrintAndLog("reserved Code: %u", reservedCode);

+ PrintAndLog("Animal Tag: %s", animalBit ? "True" : "False");

+ PrintAndLog("CRC: 0x%04X - [%04X] - %s", crc16, calcCrc, (calcCrc == crc16) ? "Passed" : "Failed");

+ PrintAndLog("Extended: 0x%X\n", extended);

+

+ return 1;

}

-int PSKnrzDemod(const char *Cmd){

+

+//by marshmellow

+//attempt to psk1 demod graph buffer

+int PSKDemod(const char *Cmd, bool verbose)

+{

int invert=0;

int clk=0;

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 (g_debugMode || verbose) PrintAndLog("Invalid argument: %s", Cmd);

+ return 0;

}

uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};

size_t BitLen = getFromGraphBuf(BitStream);

}

uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};

size_t BitLen = getFromGraphBuf(BitStream);

+ if (BitLen==0) return 0;

+ 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 || 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 || verbose) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);

+ return 0;

+ }

+ 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 7 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)

{

// 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;

return 0;

}

uint8_t invert=0;

- ans = indala26decode(DemodBuffer,(size_t *) &DemodBufferLen, &invert);

- if (ans < 1) {

- PrintAndLog("Error2: %d",ans);

+ size_t size = DemodBufferLen;

+ size_t startIdx = indala26decode(DemodBuffer, &size, &invert);

+ if (startIdx < 1) {

+ if (g_debugMode==1)

+ PrintAndLog("Error2: %d",ans);

return -1;

}

return -1;

}

- char showbits[251];

- if(invert==1) PrintAndLog("Had to invert bits");

+ setDemodBuf(DemodBuffer, size, startIdx);

+ if (invert)

+ if (g_debugMode==1)

+ PrintAndLog("Had to invert bits");

+

+ PrintAndLog("BitLen: %d",DemodBufferLen);

//convert UID to HEX

uint32_t uid1, uid2, uid3, uid4, uid5, uid6, uid7;

//convert UID to HEX

uint32_t uid1, uid2, uid3, uid4, uid5, uid6, uid7;

- int idx;

- uid1=0;

- uid2=0;

- PrintAndLog("BitLen: %d",DemodBufferLen);

- if (DemodBufferLen==64){

- for( idx=0; idx<64; idx++) {

- uid1=(uid1<<1)|(uid2>>31);

- if (DemodBuffer[idx] == 0) {

- uid2=(uid2<<1)|0;

- showbits[idx]='0';

- } else {

- uid2=(uid2<<1)|1;

- showbits[idx]='1';

- }

- showbits[idx]='\0';

- PrintAndLog("Indala UID=%s (%x%08x)", showbits, uid1, uid2);

- }

- else {

- uid3=0;

- uid4=0;

- uid5=0;

- uid6=0;

- uid7=0;

- for( idx=0; idx<DemodBufferLen; idx++) {

- uid1=(uid1<<1)|(uid2>>31);

- uid2=(uid2<<1)|(uid3>>31);

- uid3=(uid3<<1)|(uid4>>31);

- uid4=(uid4<<1)|(uid5>>31);

- uid5=(uid5<<1)|(uid6>>31);

- uid6=(uid6<<1)|(uid7>>31);

- if (DemodBuffer[idx] == 0) {

- uid7=(uid7<<1)|0;

- showbits[idx]='0';

- }

- else {

- uid7=(uid7<<1)|1;

- showbits[idx]='1';

- }

- showbits[idx]='\0';

- PrintAndLog("Indala UID=%s (%x%08x%08x%08x%08x%08x%08x)", showbits, uid1, uid2, uid3, uid4, uid5, uid6, uid7);

+ uid1=bytebits_to_byte(DemodBuffer,32);

+ uid2=bytebits_to_byte(DemodBuffer+32,32);

+ if (DemodBufferLen==64) {

+ PrintAndLog("Indala UID=%s (%x%08x)", sprint_bin(DemodBuffer,DemodBufferLen), uid1, uid2);

+ } else {

+ uid3=bytebits_to_byte(DemodBuffer+64,32);

+ uid4=bytebits_to_byte(DemodBuffer+96,32);

+ uid5=bytebits_to_byte(DemodBuffer+128,32);

+ uid6=bytebits_to_byte(DemodBuffer+160,32);

+ uid7=bytebits_to_byte(DemodBuffer+192,32);

+ PrintAndLog("Indala UID=%s (%x%08x%08x%08x%08x%08x%08x)",

+ sprint_bin(DemodBuffer,DemodBufferLen), uid1, uid2, uid3, uid4, uid5, uid6, uid7);

+ }

+ if (g_debugMode){

+ PrintAndLog("DEBUG: printing demodbuffer:");

+ printDemodBuff();

}

return 1;

}

return 1;

}

-int CmdPskClean(const char *Cmd)

+int CmdPSKNexWatch(const char *Cmd)

{

- uint8_t bitStream[MAX_GRAPH_TRACE_LEN]={0};

- size_t bitLen = getFromGraphBuf(bitStream);

- pskCleanWave(bitStream, bitLen);

- setGraphBuf(bitStream, bitLen);

- return 0;

+ if (!PSKDemod("", false)) return 0;

+ uint8_t preamble[28] = {0,0,0,0,0,1,0,1,0,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};

+ size_t startIdx = 0, size = DemodBufferLen;

+ bool invert = false;

+ if (!preambleSearch(DemodBuffer, preamble, sizeof(preamble), &size, &startIdx)){

+ // if didn't find preamble try again inverting

+ if (!PSKDemod("1", false)) return 0;

+ size = DemodBufferLen;

+ if (!preambleSearch(DemodBuffer, preamble, sizeof(preamble), &size, &startIdx)) return 0;

+ invert = true;

+ }

+ if (size != 128) return 0;

+ setDemodBuf(DemodBuffer, size, startIdx+4);

+ startIdx = 8+32; //4 = extra i added, 8 = preamble, 32 = reserved bits (always 0)

+ //get ID

+ uint32_t ID = 0;

+ for (uint8_t wordIdx=0; wordIdx<4; wordIdx++){

+ for (uint8_t idx=0; idx<8; idx++){

+ ID = (ID << 1) | DemodBuffer[startIdx+wordIdx+(idx*4)];

+ }

+ //parity check (TBD)

+

+ //checksum check (TBD)

+

+ //output

+ PrintAndLog("NexWatch ID: %d", ID);

+ if (invert){

+ PrintAndLog("Had to Invert - probably NexKey");

+ for (uint8_t idx=0; idx<size; idx++)

+ DemodBuffer[idx] ^= 1;

+ }

+

+ CmdPrintDemodBuff("x");

+ return 1;

}

-//by marshmellow

-//takes 2 arguments - clock and invert both as integers

-//attempts to demodulate ask only

-//prints binary found and saves in graphbuffer for further commands

-int CmdpskNRZrawDemod(const char *Cmd)

+// by marshmellow

+// takes 3 arguments - clock, invert, maxErr as integers

+// attempts to demodulate nrz only

+// prints binary found and saves in demodbuffer for further commands

+int NRZrawDemod(const char *Cmd, bool verbose)

+{

+ int invert=0;

+ int clk=0;

+ int maxErr=100;

+ sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr);

+ if (clk==1){

+ invert=1;

+ clk=0;

+ }

+ if (invert != 0 && invert != 1) {

+ PrintAndLog("Invalid argument: %s", Cmd);

+ return 0;

+ }

+ uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};

+ size_t BitLen = getFromGraphBuf(BitStream);

+ if (BitLen==0) return 0;

+ int errCnt=0;

+ errCnt = nrzRawDemod(BitStream, &BitLen, &clk, &invert);

+ if (errCnt > 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 7 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 CmdNRZrawDemod(const char *Cmd)

+{

+ 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(" <invert>, 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 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(" <invert>, 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("PSK1 demoded bitstream:");

// Now output the bitstream to the scrollback by line of 16 bits

printDemodBuff();

// 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(" <invert>, 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;

}

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) > 20 || cmdp == 'h' || cmdp == 'H' || strlen(Cmd)<2) {

+ PrintAndLog("Usage: data rawdemod [modulation] <help>|<options>");

+ 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(" <help> as 'h', prints the help for the specific modulation");

+ PrintAndLog(" <options> 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)

{

int CmdGrid(const char *Cmd)

{

- sscanf(Cmd, "%i %i", &PlotGridX, &PlotGridY);

- PlotGridXdefault= PlotGridX;

- PlotGridYdefault= PlotGridY;

- RepaintGraphWindow();

- return 0;

+ sscanf(Cmd, "%i %i", &PlotGridX, &PlotGridY);

+ PlotGridXdefault= PlotGridX;

+ PlotGridYdefault= PlotGridY;

+ RepaintGraphWindow();

+ return 0;

}

int CmdHexsamples(const char *Cmd)

{

}

int CmdHexsamples(const char *Cmd)

{

- 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 no args send something */

- if (requested == 0) {

- requested = 8;

- }

- if (offset + requested > sizeof(got)) {

- PrintAndLog("Tried to read past end of buffer, <bytes> + <offset> > 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 (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;

+ int i, j;

+ int requested = 0;

+ int offset = 0;

+ char string_buf[25];

+ char* string_ptr = string_buf;

+ uint8_t got[BIGBUF_SIZE];

+

+ sscanf(Cmd, "%i %i", &requested, &offset);

+

+ /* if no args send something */

+ if (requested == 0) {

+ requested = 8;

+ }

+ if (offset + requested > sizeof(got)) {

+ PrintAndLog("Tried to read past end of buffer, <bytes> + <offset> > %d", BIGBUF_SIZE);

+ 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 (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;

}

int CmdHide(const char *Cmd)

{

}

int CmdHide(const char *Cmd)

{

- HideGraphWindow();

- return 0;

+ HideGraphWindow();

+ return 0;

}

+//zero mean GraphBuffer

int CmdHpf(const char *Cmd)

{

int CmdHpf(const char *Cmd)

{

- int i;

- int accum = 0;

+ int i;

+ int accum = 0;

- for (i = 10; i < GraphTraceLen; ++i)

- accum += GraphBuffer[i];

- accum /= (GraphTraceLen - 10);

- for (i = 0; i < GraphTraceLen; ++i)

- GraphBuffer[i] -= accum;

+ for (i = 10; i < GraphTraceLen; ++i)

+ accum += GraphBuffer[i];

+ accum /= (GraphTraceLen - 10);

+ for (i = 0; i < GraphTraceLen; ++i)

+ GraphBuffer[i] -= accum;

- RepaintGraphWindow();

- return 0;

+ RepaintGraphWindow();

+ return 0;

}

-int CmdSamples(const char *Cmd)

+uint8_t getByte(uint8_t bits_per_sample, BitstreamIn* 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)

{

- uint8_t got[40000];

+ //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 };

int n = strtol(Cmd, NULL, 0);

+

if (n == 0)

- n = 20000;

+ n = sizeof(got);

if (n > sizeof(got))

n = sizeof(got);

if (n > sizeof(got))

n = sizeof(got);

- PrintAndLog("Reading %d samples from device memory\n", n);

- GetFromBigBuf(got,n,0);

- WaitForResponse(CMD_ACK,NULL);

- for (int j = 0; j < n; j++) {

- GraphBuffer[j] = ((int)got[j]) - 128;

- }

- GraphTraceLen = n;

- RepaintGraphWindow();

- return 0;

+ PrintAndLog("Reading %d bytes from device memory\n", n);

+ GetFromBigBuf(got,n,0);

+ 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...");

+ BitstreamIn bout = { got, bits_per_sample * n, 0};

+ int j =0;

+ for (j = 0; j * bits_per_sample < n * 8 && j < n; 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;

+ }

+

+ RepaintGraphWindow();

+ return 0;

+}

+

+int CmdSamples(const char *Cmd)

+{

+ return getSamples(Cmd, false);

}

int CmdTuneSamples(const char *Cmd)

}

int CmdTuneSamples(const char *Cmd)

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);

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);

- if (peakv<2000)

+

+ #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<10000)

+ else if (peakv < LF_MARGINAL_V)

PrintAndLog("# Your LF antenna is marginal.");

- if (vHf<2000)

+ if (vHf < HF_UNUSABLE_V)

PrintAndLog("# Your HF antenna is unusable.");

- else if (vHf<5000)

+ else if (vHf < HF_MARGINAL_V)

PrintAndLog("# Your HF antenna is marginal.");

- for (int i = 0; i < 256; i++) {

- GraphBuffer[i] = resp.d.asBytes[i] - 128;

+ 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 = 256;

- ShowGraphWindow();

-

- return 0;

+ return 0;

}

int CmdLoad(const char *Cmd)

{

}

int CmdLoad(const char *Cmd)

{

- char filename[FILE_PATH_SIZE] = {0x00};

- int len = 0;

+ 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);

+ 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'", filename);

- return 0;

- }

-

- GraphTraceLen = 0;

- char line[80];

- while (fgets(line, sizeof (line), f)) {

- GraphBuffer[GraphTraceLen] = atoi(line);

- GraphTraceLen++;

- }

- fclose(f);

- PrintAndLog("loaded %d samples", GraphTraceLen);

- RepaintGraphWindow();

- return 0;

+ FILE *f = fopen(filename, "r");

+ if (!f) {

+ PrintAndLog("couldn't open '%s'", filename);

+ return 0;

+ }

+

+ GraphTraceLen = 0;

+ char line[80];

+ while (fgets(line, sizeof (line), f)) {

+ GraphBuffer[GraphTraceLen] = atoi(line);

+ GraphTraceLen++;

+ }

+ fclose(f);

+ PrintAndLog("loaded %d samples", GraphTraceLen);

+ RepaintGraphWindow();

+ return 0;

}

int CmdLtrim(const char *Cmd)

{

}

int CmdLtrim(const char *Cmd)

{

- int ds = atoi(Cmd);

+ int ds = atoi(Cmd);

+ if (GraphTraceLen<=0) return 0;

+ for (int i = ds; i < GraphTraceLen; ++i)

+ GraphBuffer[i-ds] = GraphBuffer[i];

+ GraphTraceLen -= ds;

- for (int i = ds; i < GraphTraceLen; ++i)

- GraphBuffer[i-ds] = GraphBuffer[i];

- GraphTraceLen -= ds;

-

- RepaintGraphWindow();

- return 0;

+ RepaintGraphWindow();

+ return 0;

}

+

+// trim graph to input argument length

int CmdRtrim(const char *Cmd)

{

int CmdRtrim(const char *Cmd)

{

- int ds = atoi(Cmd);

-

- GraphTraceLen = ds;

+ int ds = atoi(Cmd);

- RepaintGraphWindow();

- return 0;

-}

+ GraphTraceLen = ds;

-/*

- * Manchester demodulate a bitstream. The bitstream needs to be already in

- * the GraphBuffer as 0 and 1 values

- *

- * Give the clock rate as argument in order to help the sync - the algorithm

- * resyncs at each pulse anyway.

- *

- * Not optimized by any means, this is the 1st time I'm writing this type of

- * routine, feel free to improve...

- *

- * 1st argument: clock rate (as number of samples per clock rate)

- * Typical values can be 64, 32, 128...

- */

-int CmdManchesterDemod(const char *Cmd)

-{

- int i, j, invert= 0;

- int bit;

- int clock;

- int lastval = 0;

- int low = 0;

- int high = 0;

- int hithigh, hitlow, first;

- int lc = 0;

- int bitidx = 0;

- int bit2idx = 0;

- int warnings = 0;

-

- /* check if we're inverting output */

- if (*Cmd == 'i')

- {

- PrintAndLog("Inverting output");

- invert = 1;

- ++Cmd;

- do

- ++Cmd;

- while(*Cmd == ' '); // in case a 2nd argument was given

- }

-

- /* Holds the decoded bitstream: each clock period contains 2 bits */

- /* later simplified to 1 bit after manchester decoding. */

- /* Add 10 bits to allow for noisy / uncertain traces without aborting */

- /* int BitStream[GraphTraceLen*2/clock+10]; */

-

- /* But it does not work if compiling on WIndows: therefore we just allocate a */

- /* large array */

- uint8_t BitStream[MAX_GRAPH_TRACE_LEN] = {0};

-

- /* Detect high and lows */

- for (i = 0; i < GraphTraceLen; i++)

- {

- if (GraphBuffer[i] > high)

- high = GraphBuffer[i];

- else if (GraphBuffer[i] < low)

- low = GraphBuffer[i];

- }

-

- /* Get our clock */

- clock = GetClock(Cmd, high, 1);

-

- int tolerance = clock/4;

-

- /* Detect first transition */

- /* Lo-Hi (arbitrary) */

- /* skip to the first high */

- for (i= 0; i < GraphTraceLen; i++)

- if (GraphBuffer[i] == high)

- break;

- /* now look for the first low */

- for (; i < GraphTraceLen; i++)

- {

- if (GraphBuffer[i] == low)

- {

- lastval = i;

- break;

- }

-

- /* If we're not working with 1/0s, demod based off clock */

- if (high != 1)

- {

- 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;

- hitlow = 0;

- first = 1;

-

- /* Find out if we hit both high and low peaks */

- for (j = 0; j < clock; j++)

- {

- if (GraphBuffer[(i * clock) + j] == high)

- hithigh = 1;

- else if (GraphBuffer[(i * clock) + j] == low)

- hitlow = 1;

-

- /* it doesn't count if it's the first part of our read

- because it's really just trailing from the last sequence */

- if (first && (hithigh || hitlow))

- hithigh = hitlow = 0;

- else

- first = 0;

-

- if (hithigh && hitlow)

- break;

- }

-

- /* If we didn't hit both high and low peaks, we had a bit transition */

- if (!hithigh || !hitlow)

- bit ^= 1;

-

- BitStream[bit2idx++] = bit ^ invert;

- }

-

- /* standard 1/0 bitstream */

- else

- {

-

- /* Then detect duration between 2 successive transitions */

- for (bitidx = 1; i < GraphTraceLen; i++)

- {

- if (GraphBuffer[i-1] != GraphBuffer[i])

- {

- lc = i-lastval;

- lastval = i;

-

- // Error check: if bitidx becomes too large, we do not

- // have a Manchester encoded bitstream or the clock is really

- // wrong!

- if (bitidx > (GraphTraceLen*2/clock+8) ) {

- PrintAndLog("Error: the clock you gave is probably wrong, aborting.");

- return 0;

- }

- // Then switch depending on lc length:

- // Tolerance is 1/4 of clock rate (arbitrary)

- if (abs(lc-clock/2) < tolerance) {

- // Short pulse : either "1" or "0"

- BitStream[bitidx++]=GraphBuffer[i-1];

- } else if (abs(lc-clock) < tolerance) {

- // Long pulse: either "11" or "00"

- BitStream[bitidx++]=GraphBuffer[i-1];

- } else {

- // Error

- warnings++;

- PrintAndLog("Warning: Manchester decode error for pulse width detection.");

- PrintAndLog("(too many of those messages mean either the stream is not Manchester encoded, or clock is wrong)");

-

- if (warnings > 10)

- {

- PrintAndLog("Error: too many detection errors, aborting.");

- return 0;

- }

-

- // 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) {

- if ((BitStream[i] == 0) && (BitStream[i+1] == 1)) {

- BitStream[bit2idx++] = 1 ^ invert;

- } else if ((BitStream[i] == 1) && (BitStream[i+1] == 0)) {

- BitStream[bit2idx++] = 0 ^ invert;

- } else {

- // We cannot end up in this state, this means we are unsynchronized,

- // move up 1 bit:

- i++;

- warnings++;

- PrintAndLog("Unsynchronized, resync...");

- PrintAndLog("(too many of those messages mean the stream is not Manchester encoded)");

-

- if (warnings > 10)

- {

- PrintAndLog("Error: too many decode errors, aborting.");

- return 0;

- }

-

- PrintAndLog("Manchester decoded bitstream");

- // Now output the bitstream to the scrollback by line of 16 bits

- for (i = 0; i < (bit2idx-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]);

- }

- return 0;

-}

-

-/* 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);

-

- 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++)

- GraphBuffer[(i * clock) + j] = bit ^ lastbit ^ wave;

- for (j = (int)(clock/2); 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 */

- wave ^= bit ^ lastbit;

- lastbit = bit;

- }

-

- RepaintGraphWindow();

- return 0;

+ RepaintGraphWindow();

+ return 0;

}

int CmdNorm(const char *Cmd)

{

}

int CmdNorm(const char *Cmd)

{

- int i;

- int max = INT_MIN, min = INT_MAX;

+ int i;

+ int max = INT_MIN, min = INT_MAX;

- for (i = 10; i < GraphTraceLen; ++i) {

- if (GraphBuffer[i] > max)

- max = GraphBuffer[i];

- if (GraphBuffer[i] < min)

- min = GraphBuffer[i];

- }

+ for (i = 10; i < GraphTraceLen; ++i) {

+ if (GraphBuffer[i] > max)

+ max = GraphBuffer[i];

+ if (GraphBuffer[i] < min)

+ min = GraphBuffer[i];

+ }

- if (max != min) {

- for (i = 0; i < GraphTraceLen; ++i) {

+ if (max != min) {

+ for (i = 0; i < GraphTraceLen; ++i) {

GraphBuffer[i] = (GraphBuffer[i] - ((max + min) / 2)) * 256 /

- (max - min);

+ (max - min);

//marshmelow: adjusted *1000 to *256 to make +/- 128 so demod commands still work

- }

- RepaintGraphWindow();

- return 0;

+ }

+ RepaintGraphWindow();

+ return 0;

}

int CmdPlot(const char *Cmd)

{

}

int CmdPlot(const char *Cmd)

{

- ShowGraphWindow();

- return 0;

+ ShowGraphWindow();

+ return 0;

}

int CmdSave(const char *Cmd)

{

}

int CmdSave(const char *Cmd)

{

- char filename[FILE_PATH_SIZE] = {0x00};

- int len = 0;

+ 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);

-

+ 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'", filename);

- return 0;

- }

- int i;

- for (i = 0; i < GraphTraceLen; i++) {

- fprintf(f, "%d\n", GraphBuffer[i]);

- }

- fclose(f);

- PrintAndLog("saved to '%s'", Cmd);

- return 0;

+ FILE *f = fopen(filename, "w");

+ if(!f) {

+ PrintAndLog("couldn't open '%s'", filename);

+ return 0;

+ }

+ int i;

+ for (i = 0; i < GraphTraceLen; i++) {

+ fprintf(f, "%d\n", GraphBuffer[i]);

+ }

+ fclose(f);

+ PrintAndLog("saved to '%s'", Cmd);

+ return 0;

}

int CmdScale(const char *Cmd)

{

}

int CmdScale(const char *Cmd)

{

- CursorScaleFactor = atoi(Cmd);

- if (CursorScaleFactor == 0) {

- PrintAndLog("bad, can't have zero scale");

- CursorScaleFactor = 1;

- }

- RepaintGraphWindow();

- return 0;

-}

-

-int CmdThreshold(const char *Cmd)

-{

- int threshold = atoi(Cmd);

-

- for (int i = 0; i < GraphTraceLen; ++i) {

- if (GraphBuffer[i] >= threshold)

- GraphBuffer[i] = 1;

- else

- GraphBuffer[i] = -1;

- }

- RepaintGraphWindow();

- return 0;

+ CursorScaleFactor = atoi(Cmd);

+ if (CursorScaleFactor == 0) {

+ PrintAndLog("bad, can't have zero scale");

+ CursorScaleFactor = 1;

+ }

+ RepaintGraphWindow();

+ return 0;

}

int CmdDirectionalThreshold(const char *Cmd)

}

int CmdDirectionalThreshold(const char *Cmd)

int8_t upThres = param_get8(Cmd, 0);

int8_t downThres = param_get8(Cmd, 1);

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;

+ 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;

}

int CmdZerocrossings(const char *Cmd)

{

}

int CmdZerocrossings(const char *Cmd)

{

- // Zero-crossings aren't meaningful unless the signal is zero-mean.

- CmdHpf("");

-

- int sign = 1;

- int zc = 0;

- int lastZc = 0;

-

- for (int i = 0; i < GraphTraceLen; ++i) {

- if (GraphBuffer[i] * sign >= 0) {

- // No change in sign, reproduce the previous sample count.

- zc++;

- GraphBuffer[i] = lastZc;

- } else {

- // Change in sign, reset the sample count.

- sign = -sign;

- GraphBuffer[i] = lastZc;

- if (sign > 0) {

- lastZc = zc;

- zc = 0;

- }

-

- RepaintGraphWindow();

- return 0;

+ // Zero-crossings aren't meaningful unless the signal is zero-mean.

+ CmdHpf("");

+

+ int sign = 1;

+ int zc = 0;

+ int lastZc = 0;

+

+ for (int i = 0; i < GraphTraceLen; ++i) {

+ if (GraphBuffer[i] * sign >= 0) {

+ // No change in sign, reproduce the previous sample count.

+ zc++;

+ GraphBuffer[i] = lastZc;

+ } else {

+ // Change in sign, reset the sample count.

+ sign = -sign;

+ GraphBuffer[i] = lastZc;

+ if (sign > 0) {

+ lastZc = zc;

+ zc = 0;

+ }

+

+ RepaintGraphWindow();

+ return 0;

+}

+

+int usage_data_bin2hex(){

+ PrintAndLog("Usage: data bin2hex <binary_digits>");

+ PrintAndLog(" This function will ignore all characters not 1 or 0 (but stop reading on whitespace)");

+ return 0;

+}

+

+/**

+ * @brief Utility for conversion via cmdline.

+ * @param Cmd

+ * @return

+ */

+int Cmdbin2hex(const char *Cmd)

+{

+ int bg =0, en =0;

+ if(param_getptr(Cmd, &bg, &en, 0))

+ {

+ return usage_data_bin2hex();

+ }

+ //Number of digits supplied as argument

+ size_t length = en - bg +1;

+ size_t bytelen = (length+7) / 8;

+ uint8_t* arr = (uint8_t *) malloc(bytelen);

+ memset(arr, 0, bytelen);

+ BitstreamOut bout = { arr, 0, 0 };

+

+ for(; bg <= en ;bg++)

+ {

+ char c = Cmd[bg];

+ if( c == '1') pushBit(&bout, 1);

+ else if( c == '0') pushBit(&bout, 0);

+ else PrintAndLog("Ignoring '%c'", c);

+ }

+

+ if(bout.numbits % 8 != 0)

+ {

+ printf("[padded with %d zeroes]\n", 8-(bout.numbits % 8));

+ }

+

+ //Uses printf instead of PrintAndLog since the latter

+ // adds linebreaks to each printout - this way was more convenient since we don't have to

+ // allocate a string and write to that first...

+ for(size_t x = 0; x < bytelen ; x++)

+ {

+ printf("%02X", arr[x]);

+ }

+ printf("\n");

+ free(arr);

+ return 0;

+}

+

+int usage_data_hex2bin(){

+

+ PrintAndLog("Usage: data bin2hex <binary_digits>");

+ PrintAndLog(" This function will ignore all non-hexadecimal characters (but stop reading on whitespace)");

+ return 0;

+

+}

+

+int Cmdhex2bin(const char *Cmd)

+{

+ int bg =0, en =0;

+ if(param_getptr(Cmd, &bg, &en, 0))

+ {

+ return usage_data_hex2bin();

+ }

+

+ while(bg <= en )

+ {

+ char x = Cmd[bg++];

+ // capitalize

+ if (x >= 'a' && x <= 'f')

+ x -= 32;

+ // convert to numeric value

+ if (x >= '0' && x <= '9')

+ x -= '0';

+ else if (x >= 'A' && x <= 'F')

+ x -= 'A' - 10;

+ else

+ continue;

+

+ //Uses printf instead of PrintAndLog since the latter

+ // adds linebreaks to each printout - this way was more convenient since we don't have to

+ // allocate a string and write to that first...

+

+ for(int i= 0 ; i < 4 ; ++i)

+ printf("%d",(x >> (3 - i)) & 1);

+ }

+ printf("\n");

+

+ return 0;

}

static command_t CommandTable[] =

{

}

static command_t CommandTable[] =

{

- {"help", CmdHelp, 1, "This help"},

- {"amp", CmdAmp, 1, "Amplify peaks"},

- {"askdemod", Cmdaskdemod, 1, "<0 or 1> -- Attempt to demodulate simple ASK tags"},

- {"askmandemod", Cmdaskmandemod, 1, "[clock] [invert<0|1>] -- Attempt to demodulate ASK/Manchester tags and output binary (args optional[clock will try Auto-detect])"},

- {"askrawdemod", Cmdaskrawdemod, 1, "[clock] [invert<0|1>] -- Attempt to demodulate ASK tags and output binary (args optional[clock will try Auto-detect])"},

- {"autocorr", CmdAutoCorr, 1, "<window length> -- 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|0)(rchigh = 10)(rclow=8)"},

- {"grid", CmdGrid, 1, "<x> <y> -- overlay grid on graph window, use zero value to turn off either"},

- {"hexsamples", CmdHexsamples, 0, "<bytes> [<offset>] -- Dump big buffer as hex bytes"},

- {"hide", CmdHide, 1, "Hide graph window"},

- {"hpf", CmdHpf, 1, "Remove DC offset from trace"},

- {"load", CmdLoad, 1, "<filename> -- Load trace (to graph window"},

- {"ltrim", CmdLtrim, 1, "<samples> -- Trim samples from left of trace"},

- {"rtrim", CmdRtrim, 1, "<location to end trace> -- 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|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|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, "<filename> -- Save trace (from graph window)"},

- {"scale", CmdScale, 1, "<int> -- Set cursor display scale"},

- {"threshold", CmdThreshold, 1, "<threshold> -- Maximize/minimize every value in the graph window depending on threshold"},

- {"dirthreshold", CmdDirectionalThreshold, 1, "<thres up> <thres down> -- 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"},

- {NULL, NULL, 0, NULL}

+ {"help", CmdHelp, 1, "This help"},

+ {"askedgedetect", CmdAskEdgeDetect, 1, "[threshold] Adjust Graph for manual ask demod using the length of sample differences to detect the edge of a wave (use 20-45, def: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"},

+ {"askvikingdemod", CmdVikingDemod, 1, "Demodulate a Viking 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>] [maxErr] -- Biphase decode bin stream in DemodBuffer (offset = 0|1 bits to shift the decode start)"},

+ {"bin2hex", Cmdbin2hex, 1, "bin2hex <digits> -- Converts binary to hexadecimal"},

+ {"bitsamples", CmdBitsamples, 0, "Get raw samples as bitstring"},

+ {"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)"},

+ {"fdxbdemod", CmdFDXBdemodBI , 1, "Demodulate a FDX-B ISO11784/85 Biphase tag from GraphBuffer"},

+ {"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, "<x> <y> -- overlay grid on graph window, use zero value to turn off either"},

+ {"hexsamples", CmdHexsamples, 0, "<bytes> [<offset>] -- Dump big buffer as hex bytes"},

+ {"hex2bin", Cmdhex2bin, 1, "hex2bin <hexadecimal> -- Converts hexadecimal to binary"},

+ {"hide", CmdHide, 1, "Hide graph window"},

+ {"hpf", CmdHpf, 1, "Remove DC offset from trace"},

+ {"load", CmdLoad, 1, "<filename> -- Load trace (to graph window"},

+ {"ltrim", CmdLtrim, 1, "<samples> -- Trim samples from left of trace"},

+ {"rtrim", CmdRtrim, 1, "<location to end trace> -- Trim samples from right of trace"},

+ {"manrawdecode", Cmdmandecoderaw, 1, "[invert] [maxErr] -- Manchester decode binary stream in DemodBuffer"},

+ {"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] [o] <offset> -- 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)"},

+ {"psknexwatchdemod",CmdPSKNexWatch, 1, "Demodulate a NexWatch tag (nexkey, quadrakey) (PSK1) from GraphBuffer"},

+ {"rawdemod", CmdRawDemod, 1, "[modulation] ... <options> -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, "<filename> -- Save trace (from graph window)"},

+ {"scale", CmdScale, 1, "<int> -- Set cursor display scale"},

+ {"setdebugmode", CmdSetDebugMode, 1, "<0|1> -- Turn on or off Debugging Mode for demods"},

+ {"shiftgraphzero", CmdGraphShiftZero, 1, "<shift> -- Shift 0 for Graphed wave + or - shift value"},

+ {"dirthreshold", CmdDirectionalThreshold, 1, "<thres up> <thres down> -- 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}

};

int CmdData(const char *Cmd)

{

};

int CmdData(const char *Cmd)

{

- CmdsParse(CommandTable, Cmd);

- return 0;

+ CmdsParse(CommandTable, Cmd);

+ return 0;

}

int CmdHelp(const char *Cmd)

{

}

int CmdHelp(const char *Cmd)

{

- CmdsHelp(CommandTable);

- return 0;

+ CmdsHelp(CommandTable);

+ return 0;

}