#include "cmdmain.h"
#include "cmddata.h"
#include "lfdemod.h"
-
+uint8_t DemodBuffer[MAX_DEMOD_BUF_LEN];
+uint8_t g_debugMode;
+int DemodBufferLen;
static int CmdHelp(const char *Cmd);
-int CmdAmp(const char *Cmd)
+//set the demod buffer with given array of binary (one bit per byte)
+//by marshmellow
+void setDemodBuf(uint8_t *buff, size_t size, size_t startIdx)
{
- int i, rising, falling;
- int max = INT_MIN, min = INT_MAX;
+ 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;
+}
- DetectHighLowInGraph( &max, &min, FALSE);
+int CmdSetDebugMode(const char *Cmd)
+{
+ int demod=0;
+ sscanf(Cmd, "%i", &demod);
+ g_debugMode=(uint8_t)demod;
+ return 1;
+}
- if (max != min) {
- rising = falling = 0;
+//by marshmellow
+void printDemodBuff()
+{
+ uint32_t i = 0;
+ int bitLen = DemodBufferLen;
+ if (bitLen<16) {
+ 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 < 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;
- }
- }
+ // ensure equally divided by 16
+ bitLen &= 0xfff0;
+
+ 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]);
}
- RepaintGraphWindow();
- return 0;
+ 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;
}
/*
//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;
-
- sscanf(Cmd, "%i", &c);
-
- if (c != 0 && c != 1) {
- PrintAndLog("Invalid argument: %s", Cmd);
- return 0;
- }
-
- DetectHighLowInGraph( &high, &low, FALSE);
+ int i;
+ int c, high = 0, low = 0;
- high = abs(high * .75);
- low = abs(low * .75);
+ // 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);
- //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)
- */
- 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];
- }
- }
+ /* 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;
}
-void printBitStream(uint8_t bits[], uint32_t bitLen){
-
- uint32_t i = 0;
- if (bitLen < 16) {
- PrintAndLog("Too few bits found: %d",bitLen);
- return;
- }
- if (bitLen > 512)
- bitLen = 512;
-
- if ( ( bitLen % 16 ) > 0) {
- bitLen = ((bitLen / 16) * 16);
- PrintAndLog("ICE: equally divided with 16 = %d",bitLen);
- }
-
- 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",
- bits[i],
- bits[i+1],
- bits[i+2],
- bits[i+3],
- bits[i+4],
- bits[i+5],
- bits[i+6],
- bits[i+7],
- bits[i+8],
- bits[i+9],
- bits[i+10],
- bits[i+11],
- bits[i+12],
- bits[i+13],
- bits[i+14],
- bits[i+15]);
- }
- return;
-}
+//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;
+
+ // ensure equally divided by 16
+ bitLen &= 0xfff0;
-void printEM410x(uint64_t id) {
- if ( id <= 0 ) return;
-
- uint64_t id2lo = 0;
- uint32_t i,j;
- i = j = 0;
-
- for (j = 5; j > 0; j--){
- for (i = 0; i < 8; i++){
- id2lo = ( id2lo << 1LL)|((id & ( 1 << ( i +( ( j-1 ) * 8 )))) >> ( i + (( j-1) *8 )));
+ 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;
+}
+//by marshmellow
+//print EM410x ID in multiple formats
+void printEM410x(uint64_t id)
+{
+ if (id !=0){
+ 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)));
+ }
+ }
+ //output em id
+ PrintAndLog("EM TAG ID : %010llx", id);
+ PrintAndLog("Unique TAG ID: %010llx", id2lo);
+ 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));
}
- }
- //output em id
- PrintAndLog("EM TAG ID : %010llx", id);
- PrintAndLog("Unique TAG ID: %010llx", id2lo);
- 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));
+ return;
}
+//by marshmellow
+//take binary from demod buffer and see if we can find an EM410x ID
int CmdEm410xDecode(const char *Cmd)
{
- uint64_t id = 0;
- uint8_t bits[MAX_GRAPH_TRACE_LEN] = {0x00};
- uint32_t len = GetFromGraphBuf(bits);
- id = Em410xDecode(bits, len);
- printEM410x(id);
- if ( id > 0 )
- return 1;
- return 0;
+ uint64_t id=0;
+ size_t size = DemodBufferLen, idx=0;
+ id = Em410xDecode(DemodBuffer, &size, &idx);
+ if (id>0){
+ setDemodBuf(DemodBuffer, size, idx);
+ if (g_debugMode){
+ PrintAndLog("DEBUG: Printing demod buffer:");
+ printDemodBuff();
+ }
+ printEM410x(id);
+ return 1;
+ }
+ return 0;
}
+
//by marshmellow
-//takes 2 arguments - clock and invert both as integers
-//attempts to demodulate ask while decoding manchester
+//takes 2 arguments - clock and invert both as integers
+//attempts to demodulate ask while decoding manchester
//prints binary found and saves in graphbuffer for further commands
int Cmdaskmandemod(const char *Cmd)
{
- int invert = 0;
- int clk = 0;
-
- sscanf(Cmd, "%i %i", &clk, &invert);
-
- if (invert != 0 && invert != 1) {
- PrintAndLog("Invalid argument: %s", Cmd);
- return 0;
- }
-
- uint8_t bits[MAX_GRAPH_TRACE_LEN] = {0x00};
- uint32_t len = GetFromGraphBuf(bits);
-
- int errCnt = askmandemod(bits, &len, &clk, &invert);
-
- if (errCnt < 0) return 0;
- if (len < 16) return 0;
-
- PrintAndLog("\nUsing Clock: %d - Invert: %d - Bits Found: %d",clk,invert,len);
+ 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;
+ }
- if (errCnt > 0){
- PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt);
+ size_t BitLen = getFromGraphBuf(BitStream);
+ if (g_debugMode==1) 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)
+ if (g_debugMode==1) PrintAndLog("no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt,invert,BitLen,clk);
+ return 0;
}
-
- PrintAndLog("ASK/Manchester decoded bitstream:");
-
- printBitStream(bits, len);
- uint64_t lo = Em410xDecode(bits, len);
+ PrintAndLog("\nUsing Clock: %d - Invert: %d - Bits Found: %d",clk,invert,BitLen);
- if (lo > 0){
- SetGraphBuf(bits,len);
- PrintAndLog("EM410x pattern found: ");
- printEM410x(lo);
- return 1;
- }
- return 0;
+ //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,0);
+ printDemodBuff();
+ uint64_t lo =0;
+ size_t idx=0;
+ lo = Em410xDecode(BitStream, &BitLen, &idx);
+ if (lo>0){
+ //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();
+ }
+ PrintAndLog("EM410x pattern found: ");
+ printEM410x(lo);
+ return 1;
+ }
+ return 0;
}
//by marshmellow
//stricktly take 10 and 01 and convert to 0 and 1
int Cmdmandecoderaw(const char *Cmd)
{
- int i = 0;
- int errCnt = 0;
- int bitnum = 0;
- uint8_t bits[MAX_GRAPH_TRACE_LEN] = {0x00};
- int high = 0, low = 0;
-
- for (; i < GraphTraceLen; ++i){
- if (GraphBuffer[i] > high) high = GraphBuffer[i];
- else if (GraphBuffer[i] < low) low = GraphBuffer[i];
- bits[i] = GraphBuffer[i];
- }
-
- if (high > 1 || low < 0 ){
- PrintAndLog("Error: please raw demod the wave first then mancheseter raw decode");
- return 0;
- }
-
- bitnum = i;
- errCnt = manrawdecode(bits, &bitnum);
-
- if (errCnt>=20){
- PrintAndLog("Too many errors: %d",errCnt);
- return 0;
- }
-
- PrintAndLog("Manchester Decoded - # errors:%d - data:",errCnt);
- printBitStream(bits,bitnum);
-
- if (errCnt==0){
- //put back in graphbuffer
- SetGraphBuf(bits, bitnum);
-
- uint64_t id = Em410xDecode(bits,i);
- printEM410x(id);
- }
- return 1;
+ int i =0;
+ int errCnt=0;
+ size_t size=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];
+ }
+ if (high>1 || low <0 ){
+ PrintAndLog("Error: please raw demod the wave first then mancheseter raw decode");
+ return 0;
+ }
+ 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){
+ uint64_t id = 0;
+ size_t idx=0;
+ id = Em410xDecode(BitStream, &size, &idx);
+ if (id>0){
+ //need to adjust to set bitstream back to manchester encoded data
+ //setDemodBuf(BitStream, size, idx);
+
+ printEM410x(id);
+ }
+ }
+ return 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
+//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
+// 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
int CmdBiphaseDecodeRaw(const char *Cmd)
{
- int i = 0;
- int errCnt = 0;
- int bitnum = 0;
- int offset = 0;
- int high = 0, low = 0;
- sscanf(Cmd, "%i", &offset);
-
- uint8_t bits[MAX_GRAPH_TRACE_LEN]={0};
-
- //get graphbuffer & high and low
- for (; i<GraphTraceLen; ++i){
- if (GraphBuffer[i] > high) high = GraphBuffer[i];
- else if (GraphBuffer[i] < low) low = GraphBuffer[i];
- bits[i] = GraphBuffer[i];
- }
- if (high > 1 || low < 0){
- PrintAndLog("Error: please raw demod the wave first then decode");
- return 0;
- }
- bitnum = i;
- errCnt = BiphaseRawDecode(bits, &bitnum, 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(bits, bitnum);
- PrintAndLog("\nif bitstream does not look right try offset=1");
- return 1;
+ int i = 0;
+ int errCnt=0;
+ size_t size=0;
+ int offset=0;
+ int invert=0;
+ int high=0, low=0;
+ sscanf(Cmd, "%i %i", &offset, &invert);
+ 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, invert);
+ 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;
}
-
//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)
{
- 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;
- }
-
- if ( clock < 0 ) {
- PrintAndLog("Wrong clock argument");
- return 0;
+ 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");
+ if (g_debugMode==1) PrintAndLog("errCnt: %d, BitLen: %d, clk: %d, invert: %d", errCnt, BitLen, clk, invert);
+ return 0;
}
+ PrintAndLog("Using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen);
+
+ //move BitStream back to DemodBuffer
+ setDemodBuf(BitStream,BitLen,0);
- uint8_t bits[MAX_GRAPH_TRACE_LEN] = {0x00};
- int len = GetFromGraphBuf(bits);
- int errCnt = 0;
-
- errCnt = askrawdemod(bits, &len, &clk, &invert);
-
- //throw away static - allow 1 and -1 (in case of threshold command first)
- if (errCnt == -1) {
- PrintAndLog("no data found");
- return 0;
- }
-
- if (len < 16) return 0;
-
- PrintAndLog("Using Clock: %d - invert: %d - Bits Found: %d",clk,invert,len);
-
- //move BitStream back to GraphBuffer
- SetGraphBuf(bits, len);
-
- if (errCnt > 0){
- PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt);
- }
+ //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);
- PrintAndLog("ASK demoded bitstream:");
-
- // Now output the bitstream to the scrollback by line of 16 bits
- printBitStream(bits,len);
- return 1;
+ return 1;
}
int CmdAutoCorr(const char *Cmd)
int CmdBitsamples(const char *Cmd)
{
int cnt = 0;
- uint8_t got[10000];
-
+ uint8_t got[12288];
+
GetFromBigBuf(got,sizeof(got),0);
WaitForResponse(CMD_ACK,NULL);
int hithigh, hitlow, first;
/* Detect high and lows and clock */
- DetectHighLowInGraph( &high, &low, FALSE);
+ 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, 0);
+ clock = GetClock(Cmd, high, 1);
gtl = ClearGraph(0);
bit = 0;
return 0;
}
+//by marshmellow
+//shift graph zero up or down based on input + or -
+int CmdGraphShiftZero(const char *Cmd)
+{
+
+ 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;
+}
+
/* Print our clock rate */
-// uses data from graphbuffer
+// uses data from graphbuffer
int CmdDetectClockRate(const char *Cmd)
{
- GetClock("",1);
+ GetClock("",0,0);
+ //int clock = DetectASKClock(0);
+ //PrintAndLog("Auto-detected clock rate: %d", clock);
return 0;
}
//defaults: clock = 50, invert=0, rchigh=10, rclow=8 (RF/10 RF/8 (fsk2a))
int CmdFSKrawdemod(const char *Cmd)
{
- //raw fsk demod no manchester decoding no start bit finding just get binary from wave
- 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);
-
- // A lots of checks if chigh, clow is out-of bounds.
-
- if (strlen(Cmd)>0 && strlen(Cmd)<=2) {
-
- rfLen = 50;
-
- //if invert option only is used
- if (rfLen == 1){
- invert=1;
- }
- }
-
- PrintAndLog("Args invert: %d - Clock:%d - FC high:%d - FC low: %d",invert,rfLen,fchigh, fclow);
-
- uint8_t bits[MAX_GRAPH_TRACE_LEN] = {0x00};
- uint32_t len = GetFromGraphBuf(bits);
-
- int size = fskdemod(bits, len,(uint8_t)rfLen, (uint8_t)invert, (uint8_t)fchigh, (uint8_t)fclow);
-
- if (size > 0) {
- PrintAndLog("FSK decoded bitstream:");
-
- SetGraphBuf(bits, size);
-
- // Now output the bitstream to the scrollback by line of 16 bits
- // only output a max of 8 blocks of 32 bits most tags will have full bit stream inside that sample size
- if(size > (8*32)+2)
- size = (8*32)+2;
- printBitStream(bits,size);
- } else {
- PrintAndLog("no FSK data found");
+ //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;
+ }
}
- return 0;
+
+ uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
+ size_t BitLen = getFromGraphBuf(BitStream);
+ //get field clock lengths
+ uint16_t fcs=0;
+ if (fchigh==0 || fclow == 0){
+ fcs=countFC(BitStream, BitLen);
+ 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;
+ }
+ PrintAndLog("Args invert: %d - Clock:%d - fchigh:%d - fclow: %d",invert,rfLen,fchigh, fclow);
+ 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,0);
+
+ // 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;
}
//by marshmellow (based on existing demod + holiman's refactor)
//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] = {0x00};
- uint32_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;
-
- //extra large HID tags
- if (hi2 != 0){
- PrintAndLog("TAG ID: %x%08x%08x (%d)",
- (unsigned int) hi2,
- (unsigned int) hi,
- (unsigned int) lo,
- (unsigned int) (lo>>1) & 0xFFFF);
- SetGraphBuf(BitStream,BitLen);
- return 1;
- } else {
- //standard HID tags <38 bits
- uint8_t fmtLen = 0;
- uint32_t fc = 0;
- uint32_t cardnum = 0;
-
- //if bit 38 is set then < 37 bit format is used
- if (((hi>>5) & 1)==1){
- uint32_t lo2 = 0;
-
- //get bits 21-37 to check for format len bit
- lo2 = (((hi & 15) << 12) | (lo>>20));
- uint8_t idx3 = 1;
-
- //find last bit set to 1 (format len bit)
- while( lo2 > 1){
- 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);
- }
+ //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);
+ //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("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);
- SetGraphBuf(BitStream,BitLen);
- return 1;
- }
- return 0;
+ 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);
+ //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;
+
+ PrintAndLog("Paradox TAG ID: %x%08x - FC: %d - Card: %d - Checksum: %02x",
+ hi>>10, (hi & 0x3)<<26 | (lo>>10), fc, cardnum, (lo>>2) & 0xFF );
+ 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)
{
- if (GraphTraceLen < 65) {
- PrintAndLog("data samples size is too small");
- return 0;
- }
+ //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);
+
+ //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==1){
+ PrintAndLog("DEBUG: IO Prox Data not found - FSK Bits: %d",BitLen);
+ 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) {
+ if (g_debugMode==1) 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
+ PrintAndLog("IO Prox XSF(%02d)%02x:%05d (%08x%08x)",version,facilitycode,number,code,code2);
+ setDemodBuf(BitStream,64,idx);
+ if (g_debugMode){
+ PrintAndLog("DEBUG: idx: %d, Len: %d, Printing demod buffer:",idx,64);
+ printDemodBuff();
+ }
+ return 1;
+}
- //raw fsk demod no manchester decoding no start bit finding just get binary from wave
- //set defaults
- int idx = 0;
- uint8_t bits[MAX_GRAPH_TRACE_LEN] = {0x00};
- uint32_t bitlen = GetFromGraphBuf(bits);
- //get binary from fsk wave
- idx = IOdemodFSK(bits, bitlen);
-
- if (idx == 0) {
- return 0;
- }
- if (idx == -1) {
- PrintAndLog("data samples size is too small");
- return 0;
- }
- if (idx == -2) {
- PrintAndLog("Data samples has too much noice");
- return 0;
- }
- if (idx == -3){
- PrintAndLog("No good demod");
- return 0;
- }
-
- if (idx+64 > bitlen) return 0;
+//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);
+
+ //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 == -3)
+ // PrintAndLog("Error: thought we had a tag but the parity failed");
+ 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: %x%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: %x%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: %x%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);
+
+ //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)
- //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
-
- PrintAndLog("%d%d%d%d%d%d%d%d %d", bits[idx] , bits[idx+1], bits[idx+2], bits[idx+3], bits[idx+4], bits[idx+5], bits[idx+6], bits[idx+7], bits[idx+8]);
- PrintAndLog("%d%d%d%d%d%d%d%d %d", bits[idx+9] , bits[idx+10], bits[idx+11], bits[idx+12], bits[idx+13], bits[idx+14], bits[idx+15], bits[idx+16], bits[idx+17]);
- PrintAndLog("%d%d%d%d%d%d%d%d %d facility", bits[idx+18], bits[idx+19], bits[idx+20], bits[idx+21], bits[idx+22], bits[idx+23], bits[idx+24], bits[idx+25], bits[idx+26]);
- PrintAndLog("%d%d%d%d%d%d%d%d %d version", bits[idx+27], bits[idx+28], bits[idx+29], bits[idx+30], bits[idx+31], bits[idx+32], bits[idx+33], bits[idx+34], bits[idx+35]);
- PrintAndLog("%d%d%d%d%d%d%d%d %d code1", bits[idx+36], bits[idx+37], bits[idx+38], bits[idx+39], bits[idx+40], bits[idx+41], bits[idx+42], bits[idx+43], bits[idx+44]);
- PrintAndLog("%d%d%d%d%d%d%d%d %d code2", bits[idx+45], bits[idx+46], bits[idx+47], bits[idx+48], bits[idx+49], bits[idx+50], bits[idx+51], bits[idx+52], bits[idx+53]);
- PrintAndLog("%d%d%d%d%d%d%d%d %d%d checksum", bits[idx+54], bits[idx+55], bits[idx+56], bits[idx+57], bits[idx+58], bits[idx+59], bits[idx+60], bits[idx+61], bits[idx+62], bits[idx+63]);
-
- uint32_t code = bytebits_to_byte(bits+idx,32);
- uint32_t code2 = bytebits_to_byte(bits+idx+32,32);
- uint8_t version = bytebits_to_byte(bits+idx+27,8); //14,4
- uint8_t facilitycode = bytebits_to_byte(bits+idx+18,8) ;
- uint16_t number = (bytebits_to_byte(bits+idx+36,8)<<8)|(bytebits_to_byte(bits+idx+45,8)); //36,9
-
- PrintAndLog("XSF(%02d)%02x:%05d (%08x%08x)", version, facilitycode, number, code, code2);
- SetGraphBuf(bits, bitlen);
- return 1;
+ //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: %x%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: %x%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: %x%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: %x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo);
+ }
+ }
+ if (g_debugMode){
+ PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, 128);
+ printDemodBuff();
+ }
+ return 1;
}
int CmdFSKdemod(const char *Cmd) //old CmdFSKdemod needs updating
return 0;
}
+//by marshmellow
+//attempt to detect the field clock and bit clock for FSK
+int CmdFSKfcDetect(const char *Cmd)
+{
+ uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
+ size_t size = getFromGraphBuf(BitStream);
+
+ uint16_t ans = countFC(BitStream, size);
+ if (ans==0) {
+ if (g_debugMode) PrintAndLog("DEBUG: No data found");
+ return 0;
+ }
+ uint8_t fc1, fc2;
+ fc1 = (ans >> 8) & 0xFF;
+ fc2 = ans & 0xFF;
+
+ uint8_t rf1 = detectFSKClk(BitStream, size, fc1, fc2);
+ if (rf1==0) {
+ if (g_debugMode) PrintAndLog("DEBUG: Clock detect error");
+ return 0;
+ }
+ PrintAndLog("Detected Field Clocks: FC/%d, FC/%d - Bit Clock: RF/%d", fc1, fc2, rf1);
+ return 1;
+}
+
+//by marshmellow
+//attempt to detect the bit clock for PSK or NRZ modulations
+int CmdDetectNRZpskClockRate(const char *Cmd)
+{
+ GetNRZpskClock("",0,0);
+ return 0;
+}
+
+//by marshmellow
+//attempt to psk1 or nrz demod graph buffer
+//NOTE CURRENTLY RELIES ON PEAKS :(
+int PSKnrzDemod(const char *Cmd, uint8_t verbose)
+{
+ int invert=0;
+ int clk=0;
+ sscanf(Cmd, "%i %i", &clk, &invert);
+ if (invert != 0 && invert != 1) {
+ PrintAndLog("Invalid argument: %s", Cmd);
+ return -1;
+ }
+ uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
+ size_t BitLen = getFromGraphBuf(BitStream);
+ int errCnt=0;
+ errCnt = pskNRZrawDemod(BitStream, &BitLen,&clk,&invert);
+ if (errCnt<0|| BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first)
+ if (g_debugMode==1) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
+ return -1;
+ }
+ if (verbose) PrintAndLog("Tried PSK/NRZ Demod using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen);
+
+ //prime demod buffer for output
+ setDemodBuf(BitStream,BitLen,0);
+ return errCnt;
+}
+// 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 = PSKnrzDemod(Cmd, 0);
+ } else{ //default to RF/32
+ ans = PSKnrzDemod("32", 0);
+ }
+
+ if (ans < 0){
+ if (g_debugMode==1)
+ PrintAndLog("Error1: %d",ans);
+ return 0;
+ }
+ uint8_t invert=0;
+ ans = indala26decode(DemodBuffer,(size_t *) &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;
+}
+
+//by marshmellow
+//attempt to clean psk wave noise after a peak
+//NOTE RELIES ON PEAKS :(
+int CmdPskClean(const char *Cmd)
+{
+ uint8_t bitStream[MAX_GRAPH_TRACE_LEN]={0};
+ size_t bitLen = getFromGraphBuf(bitStream);
+ pskCleanWave(bitStream, bitLen);
+ setGraphBuf(bitStream, bitLen);
+ return 0;
+}
+
+// by marshmellow
+// takes 2 arguments - clock and invert both as integers
+// attempts to demodulate psk only
+// prints binary found and saves in demodbuffer for further commands
+int CmdpskNRZrawDemod(const char *Cmd)
+{
+ int errCnt;
+
+ errCnt = PSKnrzDemod(Cmd, 1);
+ //output
+ if (errCnt<0){
+ if (g_debugMode) PrintAndLog("Error demoding: %d",errCnt);
+ return 0;
+ }
+ if (errCnt>0){
+ if (g_debugMode){
+ PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt);
+ PrintAndLog("PSK or NRZ demoded bitstream:");
+ // Now output the bitstream to the scrollback by line of 16 bits
+ printDemodBuff();
+ }
+ }else{
+ PrintAndLog("PSK or NRZ demoded bitstream:");
+ // Now output the bitstream to the scrollback by line of 16 bits
+ printDemodBuff();
+ return 1;
+ }
+ return 0;
+}
+
+// by marshmellow
+// takes same args as cmdpsknrzrawdemod
+int CmdPSK2rawDemod(const char *Cmd)
+{
+ int errCnt=0;
+ errCnt=PSKnrzDemod(Cmd, 1);
+ if (errCnt<0){
+ if (g_debugMode) PrintAndLog("Error demoding: %d",errCnt);
+ return 0;
+ }
+ psk1TOpsk2(DemodBuffer, DemodBufferLen);
+ if (errCnt>0){
+ if (g_debugMode){
+ PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt);
+ PrintAndLog("PSK2 demoded bitstream:");
+ // Now output the bitstream to the scrollback by line of 16 bits
+ printDemodBuff();
+ }
+ }else{
+ PrintAndLog("PSK2 demoded bitstream:");
+ // Now output the bitstream to the scrollback by line of 16 bits
+ printDemodBuff();
+ }
+ return 1;
+}
+
int CmdGrid(const char *Cmd)
{
sscanf(Cmd, "%i %i", &PlotGridX, &PlotGridY);
int offset = 0;
char string_buf[25];
char* string_ptr = string_buf;
- uint8_t got[40000];
-
+ uint8_t got[BIGBUF_SIZE];
+
sscanf(Cmd, "%i %i", &requested, &offset);
/* if no args send something */
requested = 8;
}
if (offset + requested > sizeof(got)) {
- PrintAndLog("Tried to read past end of buffer, <bytes> + <offset> > 40000");
+ PrintAndLog("Tried to read past end of buffer, <bytes> + <offset> > %d", BIGBUF_SIZE);
return 0;
- }
+ }
GetFromBigBuf(got,requested,offset);
WaitForResponse(CMD_ACK,NULL);
*(string_ptr - 1) = '\0';
PrintAndLog("%s", string_buf);
string_buf[0] = '\0';
- }
}
+ }
return 0;
}
int CmdSamples(const char *Cmd)
{
- uint8_t got[40000] = {0x00};
+ uint8_t got[BIGBUF_SIZE] = {0x00};
int n = strtol(Cmd, NULL, 0);
- if (n == 0)
+ if (n == 0)
n = 20000;
-
- if (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) {
+ for (int j = 0; j < n; j++) {
GraphBuffer[j] = ((int)got[j]) - 128;
}
GraphTraceLen = n;
for (int i = 0; i < 256; i++) {
GraphBuffer[i] = resp.d.asBytes[i] - 128;
}
-
- PrintAndLog("Done! Divisor 89 is 134khz, 95 is 125khz.\n");
- PrintAndLog("\n");
+
+ PrintAndLog("Done! Divisor 89 is 134khz, 95 is 125khz.\n");
+ PrintAndLog("\n");
GraphTraceLen = 256;
ShowGraphWindow();
return 0;
}
+
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) {
+ FILE *f = fopen(filename, "r");
+ if (!f) {
PrintAndLog("couldn't open '%s'", filename);
- return 0;
- }
+ return 0;
+ }
GraphTraceLen = 0;
char line[80];
RepaintGraphWindow();
return 0;
}
+
+// trim graph to input argument length
int CmdRtrim(const char *Cmd)
{
int ds = atoi(Cmd);
/* But it does not work if compiling on WIndows: therefore we just allocate a */
/* large array */
- uint8_t BitStream[MAX_GRAPH_TRACE_LEN] = {0x00};
+ uint8_t BitStream[MAX_GRAPH_TRACE_LEN] = {0};
/* Detect high and lows */
- DetectHighLowInGraph( &high, &low, TRUE);
-
+ 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, 0);
+ clock = GetClock(Cmd, high, 1);
+
int tolerance = clock/4;
/* Detect first transition */
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;
{
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];
- BitStream[bitidx++]=GraphBuffer[i-1];
- } else {
+ 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];
+ 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)");
+ 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)
{
// 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
-
- //http://www.proxmark.org/forum/viewtopic.php?id=403
- for (i = 1; i < bitidx; i += 2) {
+ 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)");
+ } 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)
{
BitStream[i+14],
BitStream[i+15]);
}
- return bit2idx;
+ return 0;
}
/* Modulate our data into manchester */
int CmdManchesterMod(const char *Cmd)
{
int i, j;
+ int clock;
int bit, lastbit, wave;
- int clock = GetClock(Cmd, 0);
-
- int half = (int)(clock/2);
-
+
+ /* 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 < half; ++j)
+ for (j = 0; j < (int)(clock/2); j++)
GraphBuffer[(i * clock) + j] = bit ^ lastbit ^ wave;
- for (j = half; j < clock; ++j)
+ 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 */
if (max != min) {
for (i = 0; i < GraphTraceLen; ++i) {
- GraphBuffer[i] = (GraphBuffer[i] - ((max + min) / 2)) * 1000 /
+ GraphBuffer[i] = (GraphBuffer[i] - ((max + min) / 2)) * 256 /
(max - min);
+ //marshmelow: adjusted *1000 to *256 to make +/- 128 so demod commands still work
}
}
RepaintGraphWindow();
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");
{
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)
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"},
- {"askrawdemod", Cmdaskrawdemod, 1, "[clock] [invert <0|1>] -- Attempt to demodulate ASK tags and output binary"},
+ {"askmandemod", Cmdaskmandemod, 1, "[clock] [invert<0|1>] -- Attempt to demodulate ASK/Manchester tags and output binary (args optional)"},
+ {"askrawdemod", Cmdaskrawdemod, 1, "[clock] [invert<0|1>] -- Attempt to demodulate ASK tags and output bin (args optional)"},
{"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)"},
+ {"biphaserawdecode",CmdBiphaseDecodeRaw,1,"[offset] [invert<0|1>] Biphase decode bin stream in demod buffer (offset = 0|1 bits to shift the decode start)"},
{"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"},
- {"detectaskclock",CmdDetectClockRate, 1, "Detect ASK clock rate"},
- {"dirthreshold", CmdDirectionalThreshold, 1, "<thres up> <thres down> -- Max rising higher up-thres/ Min falling lower down-thres, keep rest as prev."},
- {"em4xdecode", CmdEm410xDecode, 1, "decode em4x from graph buffer"},
+ {"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 or 0)(rchigh = 10)(rclow=8)"},
+ {"fskawiddemod", CmdFSKdemodAWID, 1, "Demodulate graph window as an AWID FSK tag using raw"},
+ {"fskfcdetect", CmdFSKfcDetect, 1, "Try to detect the Field Clock of an FSK wave"},
+ {"fskhiddemod", CmdFSKdemodHID, 1, "Demodulate graph window as a HID FSK tag using raw"},
+ {"fskiodemod", CmdFSKdemodIO, 1, "Demodulate graph window as an IO Prox tag FSK using raw"},
+ {"fskpyramiddemod",CmdFSKdemodPyramid,1, "Demodulate graph window as a Pyramid FSK tag using raw"},
+ {"fskparadoxdemod",CmdFSKdemodParadox,1, "Demodulate graph window as a Paradox FSK tag using raw"},
+ {"fskrawdemod", CmdFSKrawdemod, 1, "[clock rate] [invert] [rchigh] [rclow] Demodulate graph window from FSK to bin (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"},
+ {"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"},
{"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 +/-500"},
+ {"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 psk1 indala tags and output ID binary & hex (args optional)"},
+ {"psk1nrzrawdemod",CmdpskNRZrawDemod, 1, "[clock] [invert<0|1>] -- Attempt to demodulate psk1 or nrz tags and output binary (args optional)"},
+ {"psk2rawdemod", CmdPSK2rawDemod, 1, "[clock] [invert<0|1>] -- Attempt to demodulate psk2 tags and output binary (args optional)"},
{"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"},
+ {"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"},
{"threshold", CmdThreshold, 1, "<threshold> -- Maximize/minimize every value in the graph window depending on threshold"},
- {"tune", CmdTuneSamples, 0, "Get hw tune samples for graph window"},
+ {"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}
};
projects / proxmark3-svn / blobdiff