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

// Data and Graph commands

//-----------------------------------------------------------------------------

// Data and Graph commands

//-----------------------------------------------------------------------------

-#include <stdio.h>

-#include <stdlib.h>

-#include <string.h>

-#include <limits.h>

-#include "proxmark3.h"

-#include "data.h"

-#include "ui.h"

-#include "graph.h"

-#include "cmdparser.h"

+#include <stdio.h> // also included in util.h

+#include <string.h> // also included in util.h

+#include <inttypes.h>

+#include <limits.h> // for CmdNorm INT_MIN && INT_MAX

+#include "data.h" // also included in util.h

+#include "cmddata.h"

#include "util.h"

#include "cmdmain.h"

#include "util.h"

#include "cmdmain.h"

-#include "cmddata.h"

-#include "lfdemod.h"

-#include "usb_cmd.h"

-#include "crc.h"

+#include "proxmark3.h"

+#include "ui.h" // for show graph controls

+#include "graph.h" // for graph data

+#include "cmdparser.h"// already included in cmdmain.h

+#include "usb_cmd.h" // already included in cmdmain.h and proxmark3.h

+#include "lfdemod.h" // for demod code

+#include "loclass/cipherutils.h" // for decimating samples in getsamples

+#include "cmdlfem4x.h"// for em410x demod

uint8_t DemodBuffer[MAX_DEMOD_BUF_LEN];

-uint8_t g_debugMode;

-size_t DemodBufferLen;

+uint8_t g_debugMode=0;

+size_t DemodBufferLen=0;

+int g_DemodStartIdx=0;

+int g_DemodClock=0;

+

static int CmdHelp(const char *Cmd);

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

static int CmdHelp(const char *Cmd);

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

if (buff == NULL)

return;

if (buff == NULL)

return;

- if ( size >= MAX_DEMOD_BUF_LEN)

- size = MAX_DEMOD_BUF_LEN;

+ if ( size > MAX_DEMOD_BUF_LEN - startIdx)

+ size = MAX_DEMOD_BUF_LEN - startIdx;

size_t i = 0;

-for (; i < size; i++){

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

DemodBuffer[i]=buff[startIdx++];

}

DemodBufferLen=size;

return;

}

DemodBuffer[i]=buff[startIdx++];

}

DemodBufferLen=size;

return;

}

+bool getDemodBuf(uint8_t *buff, size_t *size) {

+ if (buff == NULL) return false;

+ if (size == NULL) return false;

+ if (*size == 0) return false;

+

+ *size = (*size > DemodBufferLen) ? DemodBufferLen : *size;

+

+ memcpy(buff, DemodBuffer, *size);

+ return true;

+}

+

+// option '1' to save DemodBuffer any other to restore

+void save_restoreDB(uint8_t saveOpt)

+{

+ static uint8_t SavedDB[MAX_DEMOD_BUF_LEN];

+ static size_t SavedDBlen;

+ static bool DB_Saved = false;

+ static int savedDemodStartIdx = 0;

+ static int savedDemodClock = 0;

+

+ if (saveOpt == GRAPH_SAVE) { //save

+

+ memcpy(SavedDB, DemodBuffer, sizeof(DemodBuffer));

+ SavedDBlen = DemodBufferLen;

+ DB_Saved=true;

+ savedDemodStartIdx = g_DemodStartIdx;

+ savedDemodClock = g_DemodClock;

+ } else if (DB_Saved) { //restore

+ memcpy(DemodBuffer, SavedDB, sizeof(DemodBuffer));

+ DemodBufferLen = SavedDBlen;

+ g_DemodClock = savedDemodClock;

+ g_DemodStartIdx = savedDemodStartIdx;

+ }

+ return;

+}

+

int CmdSetDebugMode(const char *Cmd)

{

int demod=0;

int CmdSetDebugMode(const char *Cmd)

{

int demod=0;

}

int usage_data_printdemodbuf(){

}

int usage_data_printdemodbuf(){

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

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

PrintAndLog("Options: ");

PrintAndLog(" h This help");

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

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

PrintAndLog("Options: ");

PrintAndLog(" h This help");

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

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

+ PrintAndLog(" l <length> enter length to print in # of bits or hex characters respectively");

return 0;

}

return 0;

}

char hex[512]={0x00};

bool hexMode = false;

bool errors = false;

char hex[512]={0x00};

bool hexMode = false;

bool errors = false;

- uint8_t offset = 0;

+ uint32_t offset = 0; //could be size_t but no param_get16...

+ uint32_t length = 512;

char cmdp = 0;

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

{

char cmdp = 0;

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

{

break;

case 'o':

case 'O':

break;

case 'o':

case 'O':

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

+ offset = param_get32ex(Cmd, cmdp+1, 0, 10);

if (!offset) errors = true;

cmdp += 2;

break;

if (!offset) errors = true;

cmdp += 2;

break;

+ case 'l':

+ case 'L':

+ length = param_get32ex(Cmd, cmdp+1, 512, 10);

+ if (!length) errors = true;

+ cmdp += 2;

+ break;

default:

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

errors = true;

default:

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

errors = true;

}

//Validations

if(errors) return usage_data_printdemodbuf();

}

//Validations

if(errors) return usage_data_printdemodbuf();

-

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

+ length = (length > (DemodBufferLen-offset)) ? DemodBufferLen-offset : length;

+ int numBits = (length) & 0x00FFC; //make sure we don't exceed our string

if (hexMode){

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

if (hexMode){

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

+ numBits = (numBits > sizeof(hex)) ? sizeof(hex) : numBits;

numBits = binarraytohex(hex, buf, numBits);

if (numBits==0) return 0;

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

} else {

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);

+ PrintAndLog("DemodBuffer:\n%s", sprint_bin_break(DemodBuffer+offset,numBits,16));

}

return 1;

}

return 1;

}

return 0;

}

return 0;

}

-//by marshmellow

-//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)));

- }

- 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;

-}

-

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

-{

- 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 3 arguments - clock, invert and maxErr as integers

-//attempts to demodulate ask while decoding manchester

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

-int 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

//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 ASKDemod_ext(const char *Cmd, bool verbose, bool emSearch, uint8_t askType, bool *stCheck) {

int invert=0;

int clk=0;

int maxErr=100;

int maxLen=0;

int invert=0;

int clk=0;

int maxErr=100;

int maxLen=0;

- uint8_t askAmp = 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);

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 (!maxLen) maxLen = BIGBUF_SIZE;

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

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

return 0;

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

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

return 0;

invert=1;

clk=0;

}

invert=1;

clk=0;

}

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

size_t BitLen = getFromGraphBuf(BitStream);

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

size_t BitLen = getFromGraphBuf(BitStream);

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 (BitLen < 255) return 0;

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

+ int foundclk = 0;

+ //amp before ST check

+ if (amp == 'a' || amp == 'A') {

+ askAmp(BitStream, BitLen);

+ }

+ bool st = false;

+ size_t ststart = 0, stend = 0;

+ if (*stCheck) st = DetectST(BitStream, &BitLen, &foundclk, &ststart, &stend);

+ *stCheck = st;

+ if (st) {

+ clk = (clk == 0) ? foundclk : clk;

+ CursorCPos = ststart;

+ CursorDPos = stend;

+ if (verbose || g_debugMode) PrintAndLog("\nFound Sequence Terminator - First one is shown by orange and blue graph markers");

+ //Graph ST trim (for testing)

+ //for (int i = 0; i < BitLen; i++) {

+ // GraphBuffer[i] = BitStream[i]-128;

+ //}

+ //RepaintGraphWindow();

+ }

+ int startIdx = 0;

+ int errCnt = askdemod_ext(BitStream, &BitLen, &clk, &invert, maxErr, askamp, askType, &startIdx);

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<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 (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);

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);

//output

setDemodBuf(BitStream,BitLen,0);

+ setClockGrid(clk, startIdx);

+

if (verbose || g_debugMode){

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

if (verbose || g_debugMode){

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

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

- else PrintAndLog("ASK/Raw decoded bitstream:");

+ 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();

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

printDemodBuff();

}

return 1;

}

return 1;

}

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

+ bool st = false;

+ return ASKDemod_ext(Cmd, verbose, emSearch, askType, &st);

+}

//by marshmellow

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

//by marshmellow

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

int Cmdaskmandemod(const char *Cmd)

{

char cmdp = param_getchar(Cmd, 0);

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]");

+ if (strlen(Cmd) > 45 || cmdp == 'h' || cmdp == 'H') {

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

+ PrintAndLog(" ['s'] optional, check for Sequence Terminator");

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 clock as integer] optional, if not set, autodetect");

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

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

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;

}

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);

+ bool st = true;

+ if (Cmd[0]=='s')

+ return ASKDemod_ext(Cmd++, true, false, 1, &st);

+ else if (Cmd[1] == 's')

+ return ASKDemod_ext(Cmd+=2, true, false, 1, &st);

+ else

+ return ASKDemod(Cmd, true, false, 1);

}

//by marshmellow

}

//by marshmellow

int errCnt=0;

size_t size=0;

int invert=0;

int errCnt=0;

size_t size=0;

int invert=0;

- size_t maxErr = 20;

+ int maxErr = 20;

char cmdp = param_getchar(Cmd, 0);

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

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

char cmdp = param_getchar(Cmd, 0);

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

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

return 0;

}

if (DemodBufferLen==0) return 0;

return 0;

}

if (DemodBufferLen==0) return 0;

- uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};

+ uint8_t BitStream[MAX_DEMOD_BUF_LEN]={0};

int high=0,low=0;

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

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

int high=0,low=0;

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

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

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

size=i;

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

size=i;

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

+ uint8_t alignPos = 0;

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

if (errCnt>=maxErr){

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

return 0;

if (errCnt>=maxErr){

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

return 0;

}

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

return 0;

}

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

- if (DemodBufferLen==0){

+ if (DemodBufferLen==0) {

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

return 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);

+ uint8_t BitStream[MAX_DEMOD_BUF_LEN]={0};

+ size = sizeof(BitStream);

+ if ( !getDemodBuf(BitStream, &size) ) return 0;

+ errCnt=BiphaseRawDecode(BitStream, &size, &offset, invert);

if (errCnt<0){

PrintAndLog("Error during decode:%d", errCnt);

return 0;

if (errCnt<0){

PrintAndLog("Error during decode:%d", errCnt);

return 0;

if (errCnt>0){

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

}

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

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

+ setClockGrid(g_DemodClock, g_DemodStartIdx + g_DemodClock*offset/2);

return 1;

}

return 1;

}

int ASKbiphaseDemod(const char *Cmd, bool verbose)

{

//ask raw demod GraphBuffer first

int ASKbiphaseDemod(const char *Cmd, bool verbose)

{

//ask raw demod GraphBuffer first

- int offset=0, clk=0, invert=0, maxErr=0, ans=0;

- ans = sscanf(Cmd, "%i %i %i %i", &offset, &clk, &invert, &maxErr);

- if (ans>0)

- ans = ASKDemod(Cmd+2, FALSE, FALSE, 0);

- else

- ans = ASKDemod(Cmd, FALSE, FALSE, 0);

- if (!ans) {

- if (g_debugMode || verbose) PrintAndLog("Error AskDemod: %d", ans);

- return 0;

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

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

+

+ uint8_t BitStream[MAX_GRAPH_TRACE_LEN];

+ size_t size = getFromGraphBuf(BitStream);

+ int startIdx = 0;

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

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

+ 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 DemodBuffer

- size_t size = DemodBufferLen;

- uint8_t BitStream[MAX_DEMOD_BUF_LEN];

- memcpy(BitStream, DemodBuffer, DemodBufferLen);

- int errCnt = BiphaseRawDecode(BitStream, &size, offset, 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 < 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;

}

//success set DemodBuffer and return

setDemodBuf(BitStream, size, 0);

if (errCnt > maxErr) {

if (g_debugMode || verbose) PrintAndLog("Error BiphaseRawDecode too many errors: %d", errCnt);

return 0;

}

//success set DemodBuffer and return

setDemodBuf(BitStream, size, 0);

+ setClockGrid(clk, startIdx + clk*offset/2);

if (g_debugMode || verbose){

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

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

printDemodBuff();

}

return 1;

printDemodBuff();

}

return 1;

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;

}

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);

-}

-

-//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;

+ return ASKbiphaseDemod(Cmd, true);

}

//by marshmellow - see ASKDemod

int Cmdaskrawdemod(const char *Cmd)

{

char cmdp = param_getchar(Cmd, 0);

}

//by marshmellow - see ASKDemod

int Cmdaskrawdemod(const char *Cmd)

{

char cmdp = param_getchar(Cmd, 0);

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

+ if (strlen(Cmd) > 35 || 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("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(" : 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;

}

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);

+ return ASKDemod(Cmd, true, false, 0);

}

-int AutoCorrelate(int window, bool SaveGrph, bool verbose)

+int AutoCorrelate(const int *in, int *out, size_t len, 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);

{

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) {

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

int sum = 0;

for (int j = 0; j < window; ++j) {

int sum = 0;

for (int j = 0; j < window; ++j) {

- sum += (GraphBuffer[j]*GraphBuffer[i + j]) / 256;

+ sum += (in[j]*in[i + j]) / 256;

}

CorrelBuffer[i] = sum;

}

CorrelBuffer[i] = sum;

- if (sum >= maxSum-100 && sum <= maxSum+100){

+ if (sum >= maxSum-100 && sum <= maxSum+100) {

//another max

Correlation = i-lastMax;

lastMax = i;

if (sum > maxSum) maxSum = sum;

//another max

Correlation = i-lastMax;

lastMax = i;

if (sum > maxSum) maxSum = sum;

- } else if (sum > maxSum){

+ } else if (sum > maxSum) {

maxSum=sum;

lastMax = i;

}

maxSum=sum;

lastMax = i;

}

- if (Correlation==0){

+ 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)){

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

+ if (CorrelBuffer[i] >= maxSum-(maxSum*0.05) && CorrelBuffer[i] <= maxSum+(maxSum*0.05)) {

//another max

Correlation = i-lastMax;

lastMax = i;

//another max

Correlation = i-lastMax;

lastMax = i;

- //if (CorrelBuffer[i] > maxSum) maxSum = sum;

}

if (verbose && Correlation > 0) PrintAndLog("Possible Correlation: %d samples",Correlation);

}

if (verbose && Correlation > 0) PrintAndLog("Possible Correlation: %d samples",Correlation);

- if (SaveGrph){

- GraphTraceLen = GraphTraceLen - window;

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

+ if (SaveGrph) {

+ //GraphTraceLen = GraphTraceLen - window;

+ memcpy(out, CorrelBuffer, len * sizeof(int));

RepaintGraphWindow();

}

return Correlation;

RepaintGraphWindow();

}

return Correlation;

return usage_data_autocorr();

int window = 4000; //set default

char grph=0;

return usage_data_autocorr();

int window = 4000; //set default

char grph=0;

- bool updateGrph = FALSE;

+ bool updateGrph = false;

sscanf(Cmd, "%i %c", &window, &grph);

if (window >= GraphTraceLen) {

sscanf(Cmd, "%i %c", &window, &grph);

if (window >= GraphTraceLen) {

GraphTraceLen);

return 0;

}

GraphTraceLen);

return 0;

}

- if (grph == 'g') updateGrph=TRUE;

- return AutoCorrelate(window, updateGrph, TRUE);

+ if (grph == 'g') updateGrph=true;

+ return AutoCorrelate(GraphBuffer, GraphBuffer, GraphTraceLen, window, updateGrph, true);

}

int CmdBitsamples(const char *Cmd)

}

int CmdBitsamples(const char *Cmd)

uint8_t factor = param_get8ex(Cmd, 0,2, 10);

//We have memory, don't we?

int swap[MAX_GRAPH_TRACE_LEN] = { 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)

+ uint32_t g_index = 0, s_index = 0;

+ while(g_index < GraphTraceLen && s_index + factor < MAX_GRAPH_TRACE_LEN)

{

int count = 0;

{

int count = 0;

- for(count = 0; count < factor && s_index+count < MAX_GRAPH_TRACE_LEN; count ++)

+ for(count = 0; count < factor && s_index + count < MAX_GRAPH_TRACE_LEN; count++)

swap[s_index+count] = GraphBuffer[g_index];

- s_index+=count;

+

+ s_index += count;

+ g_index++;

}

- memcpy(GraphBuffer,swap, s_index * sizeof(int));

+ memcpy(GraphBuffer, swap, s_index * sizeof(int));

GraphTraceLen = s_index;

RepaintGraphWindow();

return 0;

GraphTraceLen = s_index;

RepaintGraphWindow();

return 0;

}

return 0;

}

+int AskEdgeDetect(const int *in, int *out, int len, int threshold) {

+ int Last = 0;

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

+ if (in[i]-in[i-1] >= threshold) //large jump up

+ Last = 127;

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

+ Last = -127;

+ out[i-1] = Last;

+ }

+ return 0;

+}

+

//by marshmellow

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

//similar to dirtheshold, threshold commands

//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

int CmdAskEdgeDetect(const char *Cmd)

{

int thresLen = 25;

int CmdAskEdgeDetect(const char *Cmd)

{

int thresLen = 25;

+ int ans = 0;

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;

- }

+ ans = AskEdgeDetect(GraphBuffer, GraphBuffer, GraphTraceLen, thresLen);

RepaintGraphWindow();

- return 0;

+ return ans;

}

/* Print our clock rate */

}

/* Print our clock rate */

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

{

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

{

- char *fskType;

+ static char fType[8];

+ memset(fType, 0x00, 8);

+ char *fskType = fType;

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

if (invert) //fsk2a

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

if (invert) //fsk2a

- fskType = "FSK2a";

+ memcpy(fskType, "FSK2a", 5);

else //fsk2

- fskType = "FSK2";

+ memcpy(fskType, "FSK2", 4);

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

if (invert)

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

if (invert)

- fskType = "FSK1";

+ memcpy(fskType, "FSK1", 4);

else

- fskType = "FSK1a";

+ memcpy(fskType, "FSK1a", 5);

} else {

- fskType = "FSK??";

+ memcpy(fskType, "FSK??", 5);

}

return fskType;

}

return fskType;

}

int FSKrawDemod(const char *Cmd, bool verbose)

{

//raw fsk demod no manchester decoding no start bit finding just get binary from wave

int FSKrawDemod(const char *Cmd, bool verbose)

{

//raw fsk demod no manchester decoding no start bit finding just get binary from wave

+ uint8_t rfLen, invert, fchigh, fclow;

//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);

+ rfLen = param_get8(Cmd, 0);

+ invert = param_get8(Cmd, 1);

+ fchigh = param_get8(Cmd, 2);

+ fclow = param_get8(Cmd, 3);

if (strlen(Cmd)>0 && strlen(Cmd)<=2) {

- if (rfLen==1){

+ if (rfLen==1) {

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

rfLen = 0;

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;

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){

+ if (!fchigh || !fclow) {

fcs = countFC(BitStream, BitLen, 1);

- if (fcs==0){

- fchigh=10;

- fclow=8;

- }else{

- fchigh = (fcs >> 8) & 0xFF;

- fclow = fcs & 0xFF;

+ if (!fcs) {

+ fchigh = 10;

+ fclow = 8;

+ } else {

+ fchigh = (fcs >> 8) & 0x00FF;

+ fclow = fcs & 0x00FF;

}

//get bit clock length

}

//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){

+ if (!rfLen) {

+ int firstClockEdge = 0; //todo - align grid on graph with this...

+ rfLen = detectFSKClk(BitStream, BitLen, fchigh, fclow, &firstClockEdge);

+ if (!rfLen) rfLen = 50;

+ }

+ int startIdx = 0;

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

+ if (size > 0) {

setDemodBuf(BitStream,size,0);

+ setClockGrid(rfLen, startIdx);

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

+ // 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("\nUsing Clock:%u, invert:%u, fchigh:%u, fclow:%u", (unsigned int)rfLen, (unsigned int)invert, (unsigned int)fchigh, (unsigned int)fclow);

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

printDemodBuff();

}

return 1;

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

printDemodBuff();

}

return 1;

- } else{

+ } else {

if (g_debugMode) PrintAndLog("no FSK data found");

}

return 0;

if (g_debugMode) PrintAndLog("no FSK data found");

}

return 0;

int CmdFSKrawdemod(const char *Cmd)

{

char cmdp = param_getchar(Cmd, 0);

int CmdFSKrawdemod(const char *Cmd)

{

char cmdp = param_getchar(Cmd, 0);

- if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') {

+ if (strlen(Cmd) > 20 || 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("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(" : data rawdemod fs 50 1 10 8 = demod an fsk2a RF/50 tag from GraphBuffer");

return 0;

}

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)

-{

- //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) {

- 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

-//AWID Prox demod - FSK RF/50 with preamble of 00000001 (always a 96 bit data stream)

-//print full AWID Prox ID and some bit format details if found

-int CmdFSKdemodAWID(const char *Cmd)

-{

-

- //int verbose=1;

- //sscanf(Cmd, "%i", &verbose);

-

- //raw fsk demod no manchester decoding no start bit finding just get binary from wave

- uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};

- size_t size = getFromGraphBuf(BitStream);

- if (size==0) return 0;

-

- //get binary from fsk wave

- int idx = AWIDdemodFSK(BitStream, &size);

- if (idx<=0){

- if (g_debugMode==1){

- if (idx == -1)

- PrintAndLog("DEBUG: Error - not enough samples");

- else if (idx == -2)

- PrintAndLog("DEBUG: Error - only noise found");

- else if (idx == -3)

- PrintAndLog("DEBUG: Error - problem during FSK demod");

- else if (idx == -4)

- PrintAndLog("DEBUG: Error - AWID preamble not found");

- else if (idx == -5)

- PrintAndLog("DEBUG: Error - Size not correct: %d", size);

- else

- PrintAndLog("DEBUG: Error %d",idx);

- }

- return 0;

- }

-

- // Index map

- // 0 10 20 30 40 50 60

- // | | | | | | |

- // 01234567 890 1 234 5 678 9 012 3 456 7 890 1 234 5 678 9 012 3 456 7 890 1 234 5 678 9 012 3 - to 96

- // -----------------------------------------------------------------------------

- // 00000001 000 1 110 1 101 1 011 1 101 1 010 0 000 1 000 1 010 0 001 0 110 1 100 0 000 1 000 1

- // premable bbb o bbb o bbw o fff o fff o ffc o ccc o ccc o ccc o ccc o ccc o wxx o xxx o xxx o - to 96

- // |---26 bit---| |-----117----||-------------142-------------|

- // b = format bit len, o = odd parity of last 3 bits

- // f = facility code, c = card number

- // w = wiegand parity

- // (26 bit format shown)

-

- //get raw ID before removing parities

- uint32_t rawLo = bytebits_to_byte(BitStream+idx+64,32);

- uint32_t rawHi = bytebits_to_byte(BitStream+idx+32,32);

- uint32_t rawHi2 = bytebits_to_byte(BitStream+idx,32);

- setDemodBuf(BitStream,96,idx);

-

- size = removeParity(BitStream, idx+8, 4, 1, 88);

- if (size != 66){

- if (g_debugMode==1) PrintAndLog("DEBUG: Error - at parity check-tag size does not match AWID format");

- return 0;

- }

- // ok valid card found!

-

- // Index map

- // 0 10 20 30 40 50 60

- // | | | | | | |

- // 01234567 8 90123456 7890123456789012 3 456789012345678901234567890123456

- // -----------------------------------------------------------------------------

- // 00011010 1 01110101 0000000010001110 1 000000000000000000000000000000000

- // bbbbbbbb w ffffffff cccccccccccccccc w xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

- // |26 bit| |-117--| |-----142------|

- // b = format bit len, o = odd parity of last 3 bits

- // f = facility code, c = card number

- // w = wiegand parity

- // (26 bit format shown)

-

- uint32_t fc = 0;

- uint32_t cardnum = 0;

- uint32_t code1 = 0;

- uint32_t code2 = 0;

- uint8_t fmtLen = bytebits_to_byte(BitStream,8);

- if (fmtLen==26){

- fc = bytebits_to_byte(BitStream+9, 8);

- cardnum = bytebits_to_byte(BitStream+17, 16);

- code1 = bytebits_to_byte(BitStream+8,fmtLen);

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

- } else {

- cardnum = bytebits_to_byte(BitStream+8+(fmtLen-17), 16);

- if (fmtLen>32){

- code1 = bytebits_to_byte(BitStream+8,fmtLen-32);

- code2 = bytebits_to_byte(BitStream+8+(fmtLen-32),32);

- PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, code2, rawHi2, rawHi, rawLo);

- } else{

- code1 = bytebits_to_byte(BitStream+8,fmtLen);

- PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, rawHi2, rawHi, rawLo);

- }

- if (g_debugMode){

- PrintAndLog("DEBUG: idx: %d, Len: %d Printing Demod Buffer:", idx, 96);

- printDemodBuff();

- }

- //todo - convert hi2, hi, lo to demodbuffer for future sim/clone commands

- return 1;

-}

-

-//by marshmellow

-//Pyramid Prox demod - FSK RF/50 with preamble of 0000000000000001 (always a 128 bit data stream)

-//print full Farpointe Data/Pyramid Prox ID and some bit format details if found

-int CmdFSKdemodPyramid(const char *Cmd)

-{

- //raw fsk demod no manchester decoding no start bit finding just get binary from wave

- uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};

- size_t size = getFromGraphBuf(BitStream);

- if (size==0) return 0;

-

- //get binary from fsk wave

- int idx = PyramiddemodFSK(BitStream, &size);

- if (idx < 0){

- if (g_debugMode==1){

- if (idx == -5)

- PrintAndLog("DEBUG: Error - not enough samples");

- else if (idx == -1)

- PrintAndLog("DEBUG: Error - only noise found");

- else if (idx == -2)

- PrintAndLog("DEBUG: Error - problem during FSK demod");

- else if (idx == -3)

- PrintAndLog("DEBUG: Error - Size not correct: %d", size);

- else if (idx == -4)

- PrintAndLog("DEBUG: Error - Pyramid preamble not found");

- else

- PrintAndLog("DEBUG: Error - idx: %d",idx);

- }

- return 0;

- }

- // Index map

- // 0 10 20 30 40 50 60

- // | | | | | | |

- // 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3

- // -----------------------------------------------------------------------------

- // 0000000 0 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1

- // premable xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o

-

- // 64 70 80 90 100 110 120

- // | | | | | | |

- // 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7

- // -----------------------------------------------------------------------------

- // 0000000 1 0000000 1 0000000 1 0110111 0 0011000 1 0000001 0 0001100 1 1001010 0

- // xxxxxxx o xxxxxxx o xxxxxxx o xswffff o ffffccc o ccccccc o ccccccw o ppppppp o

- // |---115---||---------71---------|

- // s = format start bit, o = odd parity of last 7 bits

- // f = facility code, c = card number

- // w = wiegand parity, x = extra space for other formats

- // p = unknown checksum

- // (26 bit format shown)

-

- //get bytes for checksum calc

- uint8_t checksum = bytebits_to_byte(BitStream + idx + 120, 8);

- uint8_t csBuff[14] = {0x00};

- for (uint8_t i = 0; i < 13; i++){

- csBuff[i] = bytebits_to_byte(BitStream + idx + 16 + (i*8), 8);

- }

- //check checksum calc

- //checksum calc thanks to ICEMAN!!

- uint32_t checkCS = CRC8Maxim(csBuff,13);

-

- //get raw ID before removing parities

- uint32_t rawLo = bytebits_to_byte(BitStream+idx+96,32);

- uint32_t rawHi = bytebits_to_byte(BitStream+idx+64,32);

- uint32_t rawHi2 = bytebits_to_byte(BitStream+idx+32,32);

- uint32_t rawHi3 = bytebits_to_byte(BitStream+idx,32);

- setDemodBuf(BitStream,128,idx);

-

- size = removeParity(BitStream, idx+8, 8, 1, 120);

- if (size != 105){

- if (g_debugMode==1)

- PrintAndLog("DEBUG: Error at parity check - tag size does not match Pyramid format, SIZE: %d, IDX: %d, hi3: %x",size, idx, rawHi3);

- return 0;

- }

-

- // ok valid card found!

-

- // Index map

- // 0 10 20 30 40 50 60 70

- // | | | | | | | |

- // 01234567890123456789012345678901234567890123456789012345678901234567890

- // -----------------------------------------------------------------------

- // 00000000000000000000000000000000000000000000000000000000000000000000000

- // xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

-

- // 71 80 90 100

- // | | | |

- // 1 2 34567890 1234567890123456 7 8901234

- // ---------------------------------------

- // 1 1 01110011 0000000001000110 0 1001010

- // s w ffffffff cccccccccccccccc w ppppppp

- // |--115-| |------71------|

- // s = format start bit, o = odd parity of last 7 bits

- // f = facility code, c = card number

- // w = wiegand parity, x = extra space for other formats

- // p = unknown checksum

- // (26 bit format shown)

-

- //find start bit to get fmtLen

- int j;

- for (j=0; 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;

- //uint32_t code2 = 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);

- }

- 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;

-}

-

-// 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)

-// FLAG (animal/non-animal)

-int CmdIso11784demodBI(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: 32", errCnt);

- 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 = ISO11784demodBI(BitStream, &size);

- if (preambleIndex < 0){

- if (g_debugMode) PrintAndLog("Error ISO11784Demod , no startmarker found :: %d",preambleIndex);

- return 0;

- }

-

- setDemodBuf(BitStream, 128, preambleIndex);

- //printDemodBuff();

-

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

- if ( size <= 103 ) {

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

- return 0;

- }

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

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

-

- PrintAndLog("startmarker %d; Size %d", preambleIndex, size);

-

- //return 1;

- //got a good demod

- uint32_t NationalCodeA = bytebits_to_byteLSBF(BitStream,32);

- uint32_t NationalCodeB = bytebits_to_byteLSBF(BitStream+32,6);

- 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);

-

- PrintAndLog("NationalCode: %X%08X",NationalCodeB,NationalCodeA);

- PrintAndLog("CountryCode: %d",countryCode);

- PrintAndLog("dataBlockBit: %d",dataBlockBit);

- PrintAndLog("reservedCode: %X",reservedCode);

- PrintAndLog("animalBit: %d", animalBit);

- PrintAndLog("CRC: %02X", crc16);

- PrintAndLog("Extended: %x", extended);

-

- return 1;

+ return FSKrawDemod(Cmd, true);

}

-

//by marshmellow

//attempt to psk1 demod graph buffer

int PSKDemod(const char *Cmd, bool verbose)

//by marshmellow

//attempt to psk1 demod graph buffer

int PSKDemod(const char *Cmd, bool verbose)

clk=0;

}

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

clk=0;

}

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

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

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

return 0;

}

uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};

size_t BitLen = getFromGraphBuf(BitStream);

return 0;

}

uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};

size_t BitLen = getFromGraphBuf(BitStream);

- if (BitLen==0) return -1;

- uint8_t carrier=countFC(BitStream, BitLen, 0);

- if (carrier!=2 && carrier!=4 && carrier!=8){

- //invalid carrier

- return 0;

- }

+ if (BitLen==0) return 0;

int errCnt=0;

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

+ int startIdx = 0;

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

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 > maxErr){

if (g_debugMode || verbose) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);

return 0;

}

//prime demod buffer for output

setDemodBuf(BitStream,BitLen,0);

}

//prime demod buffer for output

setDemodBuf(BitStream,BitLen,0);

- return 1;

-}

+ setClockGrid(clk, startIdx);

-// 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);

- }

-

- if (!ans){

- if (g_debugMode==1)

- PrintAndLog("Error1: %d",ans);

- return 0;

- }

- uint8_t invert=0;

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

- if (ans < 1) {

- if (g_debugMode==1)

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

- return -1;

- }

- char showbits[251]={0x00};

- if (invert)

- if (g_debugMode==1)

- PrintAndLog("Had to invert bits");

-

- //convert UID to HEX

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

- int idx;

- 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);

- }

- if (g_debugMode){

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

- printDemodBuff();

- }

- return 1;

-}

-

-int CmdPSKNexWatch(const char *Cmd)

-{

- 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;

}

return 1;

}

size_t BitLen = getFromGraphBuf(BitStream);

if (BitLen==0) return 0;

int errCnt=0;

size_t BitLen = getFromGraphBuf(BitStream);

if (BitLen==0) return 0;

int errCnt=0;

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

+ int clkStartIdx = 0;

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

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 > maxErr){

if (g_debugMode) PrintAndLog("Too many errors 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 (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);

+ setClockGrid(clk, clkStartIdx);

+

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

if (verbose || g_debugMode) {

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

if (verbose || g_debugMode) {

int CmdNRZrawDemod(const char *Cmd)

{

char cmdp = param_getchar(Cmd, 0);

int CmdNRZrawDemod(const char *Cmd)

{

char cmdp = param_getchar(Cmd, 0);

- if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') {

+ if (strlen(Cmd) > 16 || 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("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(" : 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;

}

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);

+ return NRZrawDemod(Cmd, true);

}

// by marshmellow

}

// by marshmellow

{

int ans;

char cmdp = param_getchar(Cmd, 0);

{

int ans;

char cmdp = param_getchar(Cmd, 0);

- if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') {

+ if (strlen(Cmd) > 16 || 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("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(" : 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;

}

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);

+ ans = PSKDemod(Cmd, true);

//output

if (!ans){

if (g_debugMode) PrintAndLog("Error demoding: %d",ans);

//output

if (!ans){

if (g_debugMode) PrintAndLog("Error demoding: %d",ans);

{

int ans=0;

char cmdp = param_getchar(Cmd, 0);

{

int ans=0;

char cmdp = param_getchar(Cmd, 0);

- if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') {

+ if (strlen(Cmd) > 16 || 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("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(" : 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;

}

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);

+ ans=PSKDemod(Cmd, true);

if (!ans){

if (g_debugMode) PrintAndLog("Error demoding: %d",ans);

return 0;

if (!ans){

if (g_debugMode) PrintAndLog("Error demoding: %d",ans);

return 0;

{

char cmdp = Cmd[0]; //param_getchar(Cmd, 0);

{

char cmdp = Cmd[0]; //param_getchar(Cmd, 0);

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

+ if (strlen(Cmd) > 35 || 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("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");

return ans;

}

return ans;

}

+void setClockGrid(int clk, int offset) {

+ g_DemodStartIdx = offset;

+ g_DemodClock = clk;

+ if (g_debugMode) PrintAndLog("demodoffset %d, clk %d",offset,clk);

+

+ if (offset > clk) offset %= clk;

+ if (offset < 0) offset += clk;

+

+ if (offset > GraphTraceLen || offset < 0) return;

+ if (clk < 8 || clk > GraphTraceLen) {

+ GridLocked = false;

+ GridOffset = 0;

+ PlotGridX = 0;

+ PlotGridXdefault = 0;

+ RepaintGraphWindow();

+ } else {

+ GridLocked = true;

+ GridOffset = offset;

+ PlotGridX = clk;

+ PlotGridXdefault = clk;

+ RepaintGraphWindow();

+ }

+}

+

int CmdGrid(const char *Cmd)

{

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

int CmdGrid(const char *Cmd)

{

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

return 0;

}

return 0;

}

+int CmdSetGraphMarkers(const char *Cmd) {

+ sscanf(Cmd, "%i %i", &CursorCPos, &CursorDPos);

+ RepaintGraphWindow();

+ return 0;

+}

+

int CmdHexsamples(const char *Cmd)

{

int i, j;

int CmdHexsamples(const char *Cmd)

{

int i, j;

RepaintGraphWindow();

return 0;

}

RepaintGraphWindow();

return 0;

}

-typedef struct {

- uint8_t * buffer;

- uint32_t numbits;

- uint32_t position;

-}BitstreamOut;

-

-bool _headBit( BitstreamOut *stream)

-{

- int bytepos = stream->position >> 3; // divide by 8

- int bitpos = (stream->position++) & 7; // mask out 00000111

- return (*(stream->buffer + bytepos) >> (7-bitpos)) & 1;

-}

-uint8_t getByte(uint8_t bits_per_sample, BitstreamOut* b)

+uint8_t getByte(uint8_t bits_per_sample, BitstreamIn* b)

{

int i;

uint8_t val = 0;

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

{

int i;

uint8_t val = 0;

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

{

- val |= (_headBit(b) << (7-i));

+ val |= (headBit(b) << (7-i));

}

return val;

}

return val;

}

-int getSamples(const char *Cmd, bool silent)

+int getSamples(int n, bool silent)

{

//If we get all but the last byte in bigbuf,

// we don't have to worry about remaining trash

{

//If we get all but the last byte in bigbuf,

// we don't have to worry about remaining trash

uint8_t got[BIGBUF_SIZE-1] = { 0 };

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

-

- if (n == 0)

- n = sizeof(got);

-

- if (n > sizeof(got))

+ if (n == 0 || n > sizeof(got))

n = sizeof(got);

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

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

GetFromBigBuf(got,n,0);

- PrintAndLog("Data fetched");

+ if (!silent) PrintAndLog("Data fetched");

UsbCommand response;

WaitForResponse(CMD_ACK, &response);

uint8_t bits_per_sample = 8;

UsbCommand response;

WaitForResponse(CMD_ACK, &response);

uint8_t bits_per_sample = 8;

if(response.arg[0] > 0)

{

sample_config *sc = (sample_config *) response.d.asBytes;

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

+ if (!silent) 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)

{

, sc->decimation);

bits_per_sample = sc->bits_per_sample;

}

if(bits_per_sample < 8)

{

- PrintAndLog("Unpacking...");

- BitstreamOut bout = { got, bits_per_sample * n, 0};

+ if (!silent) 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);

int j =0;

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

uint8_t sample = getByte(bits_per_sample, &bout);

GraphTraceLen = n;

}

GraphTraceLen = n;

}

+ setClockGrid(0,0);

+ DemodBufferLen = 0;

RepaintGraphWindow();

return 0;

}

int CmdSamples(const char *Cmd)

{

RepaintGraphWindow();

return 0;

}

int CmdSamples(const char *Cmd)

{

- return getSamples(Cmd, false);

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

+ return getSamples(n, false);

}

int CmdTuneSamples(const char *Cmd)

{

}

int CmdTuneSamples(const char *Cmd)

{

- int timeout = 0;

+ int timeout = 0, arg = FLAG_TUNE_ALL;

+

+ if(*Cmd == 'l') {

+ arg = FLAG_TUNE_LF;

+ } else if (*Cmd == 'h') {

+ arg = FLAG_TUNE_HF;

+ } else if (*Cmd != '\0') {

+ PrintAndLog("use 'tune' or 'tune l' or 'tune h'");

+ return 0;

+ }

+

printf("\nMeasuring antenna characteristics, please wait...");

- UsbCommand c = {CMD_MEASURE_ANTENNA_TUNING};

+ UsbCommand c = {CMD_MEASURE_ANTENNA_TUNING, {arg, 0, 0}};

SendCommand(&c);

UsbCommand resp;

SendCommand(&c);

UsbCommand resp;

}

fclose(f);

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

}

fclose(f);

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

+ setClockGrid(0,0);

+ DemodBufferLen = 0;

RepaintGraphWindow();

return 0;

}

RepaintGraphWindow();

return 0;

}

return 0;

}

return 0;

}

+// trim graph (middle) piece

+int CmdMtrim(const char *Cmd) {

+ int start = 0, stop = 0;

+ sscanf(Cmd, "%i %i", &start, &stop);

+

+ if (start > GraphTraceLen || stop > GraphTraceLen || start > stop) return 0;

+ start++; //leave start position sample

+

+ GraphTraceLen = stop - start;

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

+ GraphBuffer[i] = GraphBuffer[start+i];

+ }

+ return 0;

+}

+

int CmdNorm(const char *Cmd)

{

int i;

int CmdNorm(const char *Cmd)

{

int 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);

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

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

}

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

}

return 0;

}

return 0;

}

-int CmdDirectionalThreshold(const char *Cmd)

+int directionalThreshold(const int* in, int *out, size_t len, int8_t up, int8_t down)

{

- 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 = in[0];

+ out[0] = 0; // Will be changed at the end, but init 0 as we adjust to last samples value if no threshold kicks in.

- 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) {

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

// Apply first threshold to samples heading up

- if (GraphBuffer[i] >= upThres && GraphBuffer[i] > lastValue)

+ if (in[i] >= up && in[i] > lastValue)

{

- lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it.

- GraphBuffer[i] = 1;

+ lastValue = out[i]; // Buffer last value as we overwrite it.

+ out[i] = 1;

}

// Apply second threshold to samples heading down

}

// Apply second threshold to samples heading down

- else if (GraphBuffer[i] <= downThres && GraphBuffer[i] < lastValue)

+ else if (in[i] <= down && in[i] < lastValue)

{

- lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it.

- GraphBuffer[i] = -1;

+ lastValue = out[i]; // Buffer last value as we overwrite it.

+ out[i] = -1;

}

else

{

}

else

{

- lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it.

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

-

+ lastValue = out[i]; // Buffer last value as we overwrite it.

+ out[i] = out[i-1];

}

- GraphBuffer[0] = GraphBuffer[1]; // Aline with first edited sample.

+ out[0] = out[1]; // Align with first edited sample.

+ return 0;

+}

+

+int CmdDirectionalThreshold(const char *Cmd)

+{

+ int8_t upThres = param_get8(Cmd, 0);

+ int8_t downThres = param_get8(Cmd, 1);

+

+ printf("Applying Up Threshold: %d, Down Threshold: %d\n", upThres, downThres);

+

+ directionalThreshold(GraphBuffer, GraphBuffer,GraphTraceLen, upThres, downThres);

RepaintGraphWindow();

return 0;

}

RepaintGraphWindow();

return 0;

}

return 0;

}

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 hex2bin <hex_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;

+}

+

+ /* // example of FSK2 RF/50 Tones

+ 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, // note one extra 1 to padd due to 50/8 remainder (1/2 the remainder)

+ 1, 1, 1, 1, -1, -1, -1, -1,

+ 1, 1, 1, 1, -1, -1, -1, -1, -1, // note one extra -1 to padd due to 50/8 remainder

+ };

+ */

+void GetHiLoTone(int *LowTone, int *HighTone, int clk, int LowToneFC, int HighToneFC) {

+ int i,j=0;

+ int Left_Modifier = ((clk % LowToneFC) % 2) + ((clk % LowToneFC)/2);

+ int Right_Modifier = (clk % LowToneFC) / 2;

+ //int HighToneMod = clk mod HighToneFC;

+ int LeftHalfFCCnt = (LowToneFC % 2) + (LowToneFC/2); //truncate

+ int FCs_per_clk = clk/LowToneFC;

+

+ // need to correctly split up the clock to field clocks.

+ // First attempt uses modifiers on each end to make up for when FCs don't evenly divide into Clk

+

+ // start with LowTone

+ // set extra 1 modifiers to make up for when FC doesn't divide evenly into Clk

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

+ LowTone[i] = 1;

+ }

+

+ // loop # of field clocks inside the main clock

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

+ // loop # of samples per field clock

+ for (j = 0; j < LowToneFC; j++) {

+ LowTone[(i*LowToneFC)+Left_Modifier+j] = ( j < LeftHalfFCCnt ) ? 1 : -1;

+ }

+

+ int k;

+ // add last -1 modifiers

+ for (k = 0; k < Right_Modifier; k++) {

+ LowTone[((i-1)*LowToneFC)+Left_Modifier+j+k] = -1;

+ }

+

+ // now do hightone

+ Left_Modifier = ((clk % HighToneFC) % 2) + ((clk % HighToneFC)/2);

+ Right_Modifier = (clk % HighToneFC) / 2;

+ LeftHalfFCCnt = (HighToneFC % 2) + (HighToneFC/2); //truncate

+ FCs_per_clk = clk/HighToneFC;

+

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

+ HighTone[i] = 1;

+ }

+

+ // loop # of field clocks inside the main clock

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

+ // loop # of samples per field clock

+ for (j = 0; j < HighToneFC; j++) {

+ HighTone[(i*HighToneFC)+Left_Modifier+j] = ( j < LeftHalfFCCnt ) ? 1 : -1;

+ }

+

+ // add last -1 modifiers

+ for (k = 0; k < Right_Modifier; k++) {

+ PrintAndLog("(i-1)*HighToneFC+lm+j+k %i",((i-1)*HighToneFC)+Left_Modifier+j+k);

+ HighTone[((i-1)*HighToneFC)+Left_Modifier+j+k] = -1;

+ }

+ if (g_debugMode == 2) {

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

+ PrintAndLog("Low: %i, High: %i",LowTone[i],HighTone[i]);

+ }

+}

+

+//old CmdFSKdemod adapted by marshmellow

+//converts FSK to clear NRZ style wave. (or demodulates)

+int FSKToNRZ(int *data, int *dataLen, int clk, int LowToneFC, int HighToneFC) {

+ uint8_t ans=0;

+ if (clk == 0 || LowToneFC == 0 || HighToneFC == 0) {

+ int firstClockEdge=0;

+ ans = fskClocks((uint8_t *) &LowToneFC, (uint8_t *) &HighToneFC, (uint8_t *) &clk, false, &firstClockEdge);

+ if (g_debugMode > 1) {

+ PrintAndLog ("DEBUG FSKtoNRZ: detected clocks: fc_low %i, fc_high %i, clk %i, firstClockEdge %i, ans %u", LowToneFC, HighToneFC, clk, firstClockEdge, ans);

+ }

+ // currently only know fsk modulations with field clocks < 10 samples and > 4 samples. filter out to remove false positives (and possibly destroying ask/psk modulated waves...)

+ if (ans == 0 || clk == 0 || LowToneFC == 0 || HighToneFC == 0 || LowToneFC > 10 || HighToneFC < 4) {

+ if (g_debugMode > 1) {

+ PrintAndLog ("DEBUG FSKtoNRZ: no fsk clocks found");

+ }

+ return 0;

+ }

+ int LowTone[clk];

+ int HighTone[clk];

+ GetHiLoTone(LowTone, HighTone, clk, LowToneFC, HighToneFC);

+

+ int i, j;

+

+ // loop through ([all samples] - clk)

+ for (i = 0; i < *dataLen - clk; ++i) {

+ int lowSum = 0, highSum = 0;

+

+ // sum all samples together starting from this sample for [clk] samples for each tone (multiply tone value with sample data)

+ for (j = 0; j < clk; ++j) {

+ lowSum += LowTone[j] * data[i+j];

+ highSum += HighTone[j] * data[i + j];

+ }

+ // get abs( [average sample value per clk] * 100 ) (or a rolling average of sorts)

+ lowSum = abs(100 * lowSum / clk);

+ highSum = abs(100 * highSum / clk);

+ // save these back to buffer for later use

+ data[i] = (highSum << 16) | lowSum;

+ }

+

+ // now we have the abs( [average sample value per clk] * 100 ) for each tone

+ // loop through again [all samples] - clk - 16

+ // note why 16??? is 16 the largest FC? changed to LowToneFC as that should be the > fc

+ for(i = 0; i < *dataLen - clk - LowToneFC; ++i) {

+ int lowTot = 0, highTot = 0;

+

+ // sum a field clock width of abs( [average sample values per clk] * 100) for each tone

+ for (j = 0; j < LowToneFC; ++j) { //10 for fsk2

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

+ }

+ for (j = 0; j < HighToneFC; j++) { //8 for fsk2

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

+ }

+

+ // subtract the sum of lowTone averages by the sum of highTone averages as it

+ // and write back the new graph value

+ data[i] = lowTot - highTot;

+ }

+ // update dataLen to what we put back to the data sample buffer

+ *dataLen -= (clk + LowToneFC);

+ return 0;

+}

+

+int usage_data_fsktonrz() {

+ PrintAndLog("Usage: data fsktonrz c <clock> l <fc_low> f <fc_high>");

+ PrintAndLog("Options: ");

+ PrintAndLog(" h This help");

+ PrintAndLog(" c <clock> enter the a clock (omit to autodetect)");

+ PrintAndLog(" l <fc_low> enter a field clock (omit to autodetect)");

+ PrintAndLog(" f <fc_high> enter a field clock (omit to autodetect)");

+ return 0;

+}

+

+int CmdFSKToNRZ(const char *Cmd) {

+ // take clk, fc_low, fc_high

+ // blank = auto;

+ bool errors = false;

+ int clk = 0;

+ char cmdp = 0;

+ int fc_low = 10, fc_high = 8;

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

+ {

+ switch(param_getchar(Cmd, cmdp))

+ {

+ case 'h':

+ case 'H':

+ return usage_data_fsktonrz();

+ case 'C':

+ case 'c':

+ clk = param_get32ex(Cmd, cmdp+1, 0, 10);

+ cmdp += 2;

+ break;

+ case 'F':

+ case 'f':

+ fc_high = param_get32ex(Cmd, cmdp+1, 0, 10);

+ cmdp += 2;

+ break;

+ case 'L':

+ case 'l':

+ fc_low = param_get32ex(Cmd, cmdp+1, 0, 10);

+ cmdp += 2;

+ break;

+ default:

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

+ errors = true;

+ break;

+ }

+ if(errors) break;

+ }

+ //Validations

+ if(errors) return usage_data_fsktonrz();

+

+ setClockGrid(0,0);

+ DemodBufferLen = 0;

+ int ans = FSKToNRZ(GraphBuffer, &GraphTraceLen, clk, fc_low, fc_high);

+ CmdNorm("");

+ RepaintGraphWindow();

+ return ans;

+}

+

static command_t CommandTable[] =

{

{"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)"},

static command_t CommandTable[] =

{

{"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"},

{"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)"},

{"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)"},

{"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)"},

- {"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"},

+ {"fsktonrz", CmdFSKToNRZ, 1, "Convert fsk2 to nrz wave for alternate fsk demodulating (for weak fsk)"},

{"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"},

{"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"},

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

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

- {"iso11784demod", CmdIso11784demodBI, 1, "Demodulate a ISO11784/85 Biphase tag from GraphBuffer"},

{"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"},

{"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"},

+ {"mtrim", CmdMtrim, 1, "<start> <stop> -- Trim out samples from the specified start to the specified stop"},

{"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)"},

{"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"},

+ {"printdemodbuffer",CmdPrintDemodBuff, 1, "[x] [o] <offset> [l] <length> -- print the data in the DemodBuffer - 'x' for hex output"},

{"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)"},

{"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)"},

+ {"setgraphmarkers", CmdSetGraphMarkers, 1, "[orange_marker] [blue_marker] (in graph window)"},

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

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

+ {"setdebugmode", CmdSetDebugMode, 1, "<0|1|2> -- Turn on or off Debugging Level for lf 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"},

{"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"},