//set the demod buffer with given array of binary (one bit per byte)
//by marshmellow
-void setDemodBuf(uint8_t *buff,int size)
+void setDemodBuf(uint8_t *buff,int size)
{
- int i=0;
- for (; i < size; ++i){
- DemodBuffer[i]=buff[i];
- }
- DemodBufferLen=size;
- return;
+ int i=0;
+ for (; i < size; ++i){
+ DemodBuffer[i]=buff[i];
+ }
+ DemodBufferLen=size;
+ return;
}
//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 <= (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]);
- }
- return;
+ 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 <= (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]);
+ }
+ return;
}
sscanf(Cmd, "%i", &c);
/* Detect high and lows and clock */
- // (AL - clock???)
+ // (AL - clock???)
for (i = 0; i < GraphTraceLen; ++i)
{
if (GraphBuffer[i] > high)
BitStream[i+14],
BitStream[i+15]);
}
- return;
+ return;
}
//by marshmellow
+//print EM410x ID in multiple formats
void printEM410x(uint64_t id)
{
if (id !=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)));
+ id2lo=(id2lo<<1LL) | ((id & (iii << (i+((ii-1)*8)))) >> (i+((ii-1)*8)));
}
}
//output em id
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 BitStream[MAX_GRAPH_TRACE_LEN]={0};
// uint32_t i=0;
// i=getFromGraphBuf(BitStream);
- id = Em410xDecode(DemodBuffer,DemodBufferLen);
+ id = Em410xDecode(DemodBuffer,DemodBufferLen);
printEM410x(id);
if (id>0) return 1;
return 0;
//by marshmellow
//takes 2 arguments - clock and invert both as integers
-//attempts to demodulate ask while decoding manchester
+//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;
+ int invert=0;
+ int clk=0;
uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
- sscanf(Cmd, "%i %i", &clk, &invert);
+ sscanf(Cmd, "%i %i", &clk, &invert);
if (invert != 0 && invert != 1) {
PrintAndLog("Invalid argument: %s", Cmd);
return 0;
}
- int BitLen = getFromGraphBuf(BitStream);
+ size_t BitLen = getFromGraphBuf(BitStream);
// PrintAndLog("DEBUG: Bitlen from grphbuff: %d",BitLen);
int errCnt=0;
errCnt = askmandemod(BitStream, &BitLen,&clk,&invert);
- if (errCnt<0||BitLen<16){ //if fatal error (or -1)
- // PrintAndLog("no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt,invert,BitLen,clk);
+ if (errCnt<0||BitLen<16){ //if fatal error (or -1)
+ // PrintAndLog("no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt,invert,BitLen,clk);
return 0;
- }
+ }
PrintAndLog("\nUsing Clock: %d - Invert: %d - Bits Found: %d",clk,invert,BitLen);
-
+
//output
if (errCnt>0){
PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt);
}
PrintAndLog("ASK/Manchester decoded bitstream:");
// Now output the bitstream to the scrollback by line of 16 bits
- setDemodBuf(BitStream,BitLen);
- printDemodBuff();
+ setDemodBuf(BitStream,BitLen);
+ printDemodBuff();
uint64_t lo =0;
lo = Em410xDecode(BitStream,BitLen);
if (lo>0){
{
int i =0;
int errCnt=0;
- int bitnum=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];
+ 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;
}
- bitnum=i;
- errCnt=manrawdecode(BitStream,&bitnum);
+ 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,bitnum);
+ printBitStream(BitStream, size);
if (errCnt==0){
- uint64_t id = 0;
- id = Em410xDecode(BitStream,bitnum);
- if (id>0) setDemodBuf(BitStream,bitnum);
- printEM410x(id);
+ uint64_t id = 0;
+ id = Em410xDecode(BitStream, size);
+ if (id>0) setDemodBuf(BitStream, size);
+ printEM410x(id);
}
return 1;
}
//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
+// 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
{
int i = 0;
int errCnt=0;
- int bitnum=0;
+ size_t size=0;
int offset=0;
int high=0, low=0;
- sscanf(Cmd, "%i", &offset);
+ sscanf(Cmd, "%i", &offset);
uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
//get graphbuffer & high and low
- for (;i<DemodBufferLen;++i){
- if(DemodBuffer[i]>high)high=DemodBuffer[i];
- else if(DemodBuffer[i]<low)low=DemodBuffer[i];
- BitStream[i]=DemodBuffer[i];
+ 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;
}
- bitnum=i;
- errCnt=BiphaseRawDecode(BitStream,&bitnum, offset);
+ size=i;
+ errCnt=BiphaseRawDecode(BitStream, &size, offset);
if (errCnt>=20){
PrintAndLog("Too many errors attempting to decode: %d",errCnt);
return 0;
}
PrintAndLog("Biphase Decoded using offset: %d - # errors:%d - data:",offset,errCnt);
- printBitStream(BitStream,bitnum);
+ printBitStream(BitStream, size);
PrintAndLog("\nif bitstream does not look right try offset=1");
return 1;
}
//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);
+ sscanf(Cmd, "%i %i", &clk, &invert);
if (invert != 0 && invert != 1) {
PrintAndLog("Invalid argument: %s", Cmd);
return 0;
}
- int BitLen = getFromGraphBuf(BitStream);
+ 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");
+ errCnt = askrawdemod(BitStream, &BitLen,&clk,&invert);
+ if (errCnt==-1||BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first)
+ PrintAndLog("no data found");
return 0;
- }
+ }
PrintAndLog("Using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen);
//PrintAndLog("Data start pos:%d, lastBit:%d, stop pos:%d, numBits:%d",iii,lastBit,i,bitnum);
- //move BitStream back to DemodBuffer
- setDemodBuf(BitStream,BitLen);
-
- //output
+ //move BitStream back to DemodBuffer
+ setDemodBuf(BitStream,BitLen);
+
+ //output
if (errCnt>0){
PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt);
}
PrintAndLog("ASK demoded bitstream:");
// Now output the bitstream to the scrollback by line of 16 bits
printBitStream(BitStream,BitLen);
-
+
return 1;
}
{
int cnt = 0;
uint8_t got[12288];
-
+
GetFromBigBuf(got,sizeof(got),0);
WaitForResponse(CMD_ACK,NULL);
bit ^= 1;
AppendGraph(0, clock, bit);
- // for (j = 0; j < (int)(clock/2); j++)
- // GraphBuffer[(i * clock) + j] = bit ^ 1;
- // for (j = (int)(clock/2); j < clock; j++)
- // GraphBuffer[(i * clock) + j] = bit;
+ // for (j = 0; j < (int)(clock/2); j++)
+ // GraphBuffer[(i * clock) + j] = bit ^ 1;
+ // for (j = (int)(clock/2); j < clock; j++)
+ // GraphBuffer[(i * clock) + j] = bit;
}
RepaintGraphWindow();
}
/* Print our clock rate */
-// uses data from graphbuffer
+// uses data from graphbuffer
int CmdDetectClockRate(const char *Cmd)
{
GetClock("",0,0);
- //int clock = DetectASKClock(0);
- //PrintAndLog("Auto-detected clock rate: %d", clock);
+ //int clock = DetectASKClock(0);
+ //PrintAndLog("Auto-detected clock rate: %d", clock);
return 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);
-
+ sscanf(Cmd, "%i %i %i %i", &rfLen, &invert, &fchigh, &fclow);
+
if (strlen(Cmd)>0 && strlen(Cmd)<=2) {
//rfLen=param_get8(Cmd, 0); //if rfLen option only is used
if (rfLen==1){
invert=1; //if invert option only is used
rfLen = 50;
} else if(rfLen==0) rfLen=50;
- }
+ }
PrintAndLog("Args invert: %d - Clock:%d - fchigh:%d - fclow: %d",invert,rfLen,fchigh, fclow);
uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
- uint32_t BitLen = getFromGraphBuf(BitStream);
- int size = fskdemod(BitStream,BitLen,(uint8_t)rfLen,(uint8_t)invert,(uint8_t)fchigh,(uint8_t)fclow);
+ size_t BitLen = getFromGraphBuf(BitStream);
+ int size = fskdemod(BitStream,BitLen,(uint8_t)rfLen,(uint8_t)invert,(uint8_t)fchigh,(uint8_t)fclow);
if (size>0){
PrintAndLog("FSK decoded bitstream:");
- setDemodBuf(BitStream,size);
-
+ setDemodBuf(BitStream,size);
+
// Now output the bitstream to the scrollback by line of 16 bits
if(size > (8*32)+2) size = (8*32)+2; //only output a max of 8 blocks of 32 bits most tags will have full bit stream inside that sample size
printBitStream(BitStream,size);
uint32_t hi2=0, hi=0, lo=0;
uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
- uint32_t BitLen = getFromGraphBuf(BitStream);
+ size_t BitLen = getFromGraphBuf(BitStream);
//get binary from fsk wave
- size_t size = HIDdemodFSK(BitStream,BitLen,&hi2,&hi,&lo);
+ size_t size = HIDdemodFSK(BitStream,BitLen,&hi2,&hi,&lo);
if (size<0){
PrintAndLog("Error demoding fsk");
return 0;
}
if (hi2==0 && hi==0 && lo==0) return 0;
if (hi2 != 0){ //extra large HID tags
- PrintAndLog("HID Prox TAG ID: %x%08x%08x (%d)",
+ PrintAndLog("HID Prox TAG ID: %x%08x%08x (%d)",
(unsigned int) hi2, (unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF);
- setDemodBuf(BitStream,BitLen);
+ setDemodBuf(BitStream,BitLen);
return 1;
}
else { //standard HID tags <38 bits
uint32_t cardnum = 0;
if (((hi>>5)&1)==1){//if bit 38 is set then < 37 bit format is used
uint32_t lo2=0;
- lo2=(((hi & 15) << 12) | (lo>>20)); //get bits 21-37 to check for format len bit
+ 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;
+ 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);
}
}
else { //if bit 38 is not set then 37 bit format is used
- fmtLen= 37;
- fc =0;
- cardnum=0;
- if(fmtLen==37){
+ 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",
+ }
+ 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);
+ setDemodBuf(BitStream,BitLen);
return 1;
}
return 0;
{
//raw fsk demod no manchester decoding no start bit finding just get binary from wave
//set defaults
- int idx=0;
+ int idx=0;
//something in graphbuffer
if (GraphTraceLen < 65) return 0;
uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
- uint32_t BitLen = getFromGraphBuf(BitStream);
+ size_t BitLen = getFromGraphBuf(BitStream);
//get binary from fsk wave
// PrintAndLog("DEBUG: got buff");
- idx = IOdemodFSK(BitStream,BitLen);
+ idx = IOdemodFSK(BitStream,BitLen);
if (idx<0){
//PrintAndLog("Error demoding fsk");
return 0;
//Handle the data
if (idx+64>BitLen) return 0;
PrintAndLog("%d%d%d%d%d%d%d%d %d",BitStream[idx], BitStream[idx+1], BitStream[idx+2], BitStream[idx+3], BitStream[idx+4], BitStream[idx+5], BitStream[idx+6], BitStream[idx+7], BitStream[idx+8]);
- PrintAndLog("%d%d%d%d%d%d%d%d %d",BitStream[idx+9], BitStream[idx+10], BitStream[idx+11],BitStream[idx+12],BitStream[idx+13],BitStream[idx+14],BitStream[idx+15],BitStream[idx+16],BitStream[idx+17]);
+ PrintAndLog("%d%d%d%d%d%d%d%d %d",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%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);
+ uint32_t code2 = bytebits_to_byte(BitStream+idx+32,32);
uint8_t version = bytebits_to_byte(BitStream+idx+27,8); //14,4
uint8_t facilitycode = bytebits_to_byte(BitStream+idx+18,8) ;
uint16_t number = (bytebits_to_byte(BitStream+idx+36,8)<<8)|(bytebits_to_byte(BitStream+idx+45,8)); //36,9
- PrintAndLog("IO Prox XSF(%02d)%02x:%05d (%08x%08x)",version,facilitycode,number,code,code2);
- int i;
- for (i=0;i<64;++i)
- DemodBuffer[i]=BitStream[idx++];
+ PrintAndLog("IO Prox XSF(%02d)%02x:%05d (%08x%08x)",version,facilitycode,number,code,code2);
+ int i;
+ for (i=0;i<64;++i)
+ DemodBuffer[i]=BitStream[idx++];
- DemodBufferLen=64;
+ DemodBufferLen=64;
return 1;
}
int CmdFSKdemod(const char *Cmd) //old CmdFSKdemod needs updating
int lowLen = sizeof (LowTone) / sizeof (int);
int highLen = sizeof (HighTone) / sizeof (int);
- int convLen = (highLen > lowLen) ? highLen : lowLen; //if highlen > lowLen then highlen else lowlen
+ int convLen = (highLen > lowLen) ? highLen : lowLen;
uint32_t hi = 0, lo = 0;
int i, j;
int minMark = 0, maxMark = 0;
-
+
for (i = 0; i < GraphTraceLen - convLen; ++i) {
int lowSum = 0, highSum = 0;
PrintAndLog("actual data bits start at sample %d", maxPos);
PrintAndLog("length %d/%d", highLen, lowLen);
- uint8_t bits[46];
- bits[sizeof(bits)-1] = '\0';
+ uint8_t bits[46];
+ bits[sizeof(bits)-1] = '\0';
// find bit pairs and manchester decode them
for (i = 0; i < arraylen(bits) - 1; ++i) {
int CmdDetectNRZpskClockRate(const char *Cmd)
{
- GetNRZpskClock("",0,0);
- return 0;
+ GetNRZpskClock("",0,0);
+ return 0;
}
int PSKnrzDemod(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 -1;
- }
- uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
- int 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)
- //PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
- return -1;
- }
- PrintAndLog("Tried PSK/NRZ Demod using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen);
-
- //prime demod buffer for output
- setDemodBuf(BitStream,BitLen);
- return errCnt;
+ 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)
+ //PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
+ return -1;
+ }
+ PrintAndLog("Tried PSK/NRZ Demod using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen);
+
+ //prime demod buffer for output
+ setDemodBuf(BitStream,BitLen);
+ return errCnt;
}
// Indala 26 bit decode
// by marshmellow
// optional arguments - same as CmdpskNRZrawDemod (clock & invert)
int CmdIndalaDecode(const char *Cmd)
{
-
- int ans=PSKnrzDemod(Cmd);
- if (ans < 0){
- PrintAndLog("Error1: %d",ans);
- return 0;
- }
- uint8_t invert=0;
- ans = indala26decode(DemodBuffer, &DemodBufferLen, &invert);
- if (ans < 1) {
- PrintAndLog("Error2: %d",ans);
- return -1;
- }
- char showbits[251];
- if(invert==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';
- }
+ uint8_t verbose = 1;
+ int ans;
+ if (strlen(Cmd)>0){
+ if (Cmd[0]=='0'){
+ verbose=0;
+ ans = PSKnrzDemod("32");
+ }else{
+ ans = PSKnrzDemod(Cmd);
}
- 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);
- }
- return 1;
+ } else{ //default to RF/32
+ ans = PSKnrzDemod("32");
+ }
+
+ if (ans < 0){
+ if (verbose)
+ PrintAndLog("Error1: %d",ans);
+ return 0;
+ }
+ uint8_t invert=0;
+ ans = indala26decode(DemodBuffer,(size_t *) &DemodBufferLen, &invert);
+ if (ans < 1) {
+ if (verbose)
+ PrintAndLog("Error2: %d",ans);
+ return -1;
+ }
+ char showbits[251];
+ if (invert)
+ if (verbose)
+ 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);
+ }
+ return 1;
}
-/*
-//by marshmellow (attempt to get rid of high immediately after a low)
-void pskCleanWave2(uint8_t *bitStream, int bitLen)
-{
- int i;
- int low=128;
- int gap = 4;
- // int loopMax = 2048;
- int newLow=0;
-
- for (i=0; i<bitLen; ++i)
- if (bitStream[i]<low) low=bitStream[i];
-
- low = (int)(((low-128)*.80)+128);
- PrintAndLog("low: %d",low);
- for (i=0; i<bitLen; ++i){
- if (newLow==1){
- bitStream[i]=low+5;
- gap--;
- if (gap==0){
- newLow=0;
- gap=4;
- }
- }
- if (bitStream[i]<=low) newLow=1;
- }
- return;
-}
-*/
int CmdPskClean(const char *Cmd)
{
- uint8_t bitStream[MAX_GRAPH_TRACE_LEN]={0};
- int bitLen = getFromGraphBuf(bitStream);
- pskCleanWave(bitStream, bitLen);
- setGraphBuf(bitStream, bitLen);
- return 0;
+ uint8_t bitStream[MAX_GRAPH_TRACE_LEN]={0};
+ size_t bitLen = getFromGraphBuf(bitStream);
+ pskCleanWave(bitStream, bitLen);
+ setGraphBuf(bitStream, bitLen);
+ return 0;
}
//by marshmellow
//prints binary found and saves in graphbuffer for further commands
int CmdpskNRZrawDemod(const char *Cmd)
{
- int errCnt= PSKnrzDemod(Cmd);
- //output
- if (errCnt<0) return 0;
- if (errCnt>0){
- 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();
-
- return 1;
+ uint8_t verbose = 1;
+ int errCnt;
+ if (strlen(Cmd)>0){
+ if (Cmd[0]=='0')
+ verbose=0;
+ }
+
+ errCnt = PSKnrzDemod(Cmd);
+ //output
+ if (errCnt<0) return 0;
+ if (errCnt>0){
+ if (verbose)
+ 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();
+
+ return 1;
}
-
-
int CmdGrid(const char *Cmd)
{
sscanf(Cmd, "%i %i", &PlotGridX, &PlotGridY);
char string_buf[25];
char* string_ptr = string_buf;
uint8_t got[40000];
-
+
sscanf(Cmd, "%i %i", &requested, &offset);
/* if no args send something */
if (offset + requested > sizeof(got)) {
PrintAndLog("Tried to read past end of buffer, <bytes> + <offset> > 40000");
return 0;
- }
+ }
GetFromBigBuf(got,requested,offset);
WaitForResponse(CMD_ACK,NULL);
*(string_ptr - 1) = '\0';
PrintAndLog("%s", string_buf);
string_buf[0] = '\0';
- }
}
+ }
return 0;
}
int CmdSamples(const char *Cmd)
{
- int cnt = 0;
- int n;
- uint8_t got[40000];
+ uint8_t got[40000];
+
+ int n = strtol(Cmd, NULL, 0);
+ if (n == 0)
+ n = 20000;
+
+ if (n > sizeof(got))
+ n = sizeof(got);
- n = strtol(Cmd, NULL, 0);
- if (n == 0) n = 6000;
- if (n > sizeof(got)) n = sizeof(got);
-
- PrintAndLog("Reading %d samples\n", n);
+ PrintAndLog("Reading %d samples from device memory\n", n);
GetFromBigBuf(got,n,0);
WaitForResponse(CMD_ACK,NULL);
- for (int j = 0; j < n; j++) {
- GraphBuffer[cnt++] = ((int)got[j]) - 128;
+ for (int j = 0; j < n; j++) {
+ GraphBuffer[j] = ((int)got[j]) - 128;
}
-
- PrintAndLog("Done!\n");
GraphTraceLen = n;
RepaintGraphWindow();
return 0;
int CmdTuneSamples(const char *Cmd)
{
- int cnt = 0;
- int n = 255;
- uint8_t got[255];
+ int timeout = 0;
+ printf("\nMeasuring antenna characteristics, please wait...");
+
+ UsbCommand c = {CMD_MEASURE_ANTENNA_TUNING};
+ SendCommand(&c);
+
+ UsbCommand resp;
+ while(!WaitForResponseTimeout(CMD_MEASURED_ANTENNA_TUNING,&resp,1000)) {
+ timeout++;
+ printf(".");
+ if (timeout > 7) {
+ PrintAndLog("\nNo response from Proxmark. Aborting...");
+ return 1;
+ }
+ }
+
+ int peakv, peakf;
+ int vLf125, vLf134, vHf;
+ vLf125 = resp.arg[0] & 0xffff;
+ vLf134 = resp.arg[0] >> 16;
+ vHf = resp.arg[1] & 0xffff;;
+ peakf = resp.arg[2] & 0xffff;
+ peakv = resp.arg[2] >> 16;
+ PrintAndLog("");
+ PrintAndLog("# LF antenna: %5.2f V @ 125.00 kHz", vLf125/1000.0);
+ PrintAndLog("# LF antenna: %5.2f V @ 134.00 kHz", vLf134/1000.0);
+ PrintAndLog("# LF optimal: %5.2f V @%9.2f kHz", peakv/1000.0, 12000.0/(peakf+1));
+ PrintAndLog("# HF antenna: %5.2f V @ 13.56 MHz", vHf/1000.0);
+ if (peakv<2000)
+ PrintAndLog("# Your LF antenna is unusable.");
+ else if (peakv<10000)
+ PrintAndLog("# Your LF antenna is marginal.");
+ if (vHf<2000)
+ PrintAndLog("# Your HF antenna is unusable.");
+ else if (vHf<5000)
+ PrintAndLog("# Your HF antenna is marginal.");
+
+ for (int i = 0; i < 256; i++) {
+ GraphBuffer[i] = resp.d.asBytes[i] - 128;
+ }
- PrintAndLog("Reading %d samples\n", n);
- GetFromBigBuf(got,n,7256); // armsrc/apps.h: #define FREE_BUFFER_OFFSET 7256
- WaitForResponse(CMD_ACK,NULL);
- for (int j = 0; j < n; j++) {
- GraphBuffer[cnt++] = ((int)got[j]) - 128;
- }
-
PrintAndLog("Done! Divisor 89 is 134khz, 95 is 125khz.\n");
PrintAndLog("\n");
- GraphTraceLen = n;
- RepaintGraphWindow();
+ GraphTraceLen = 256;
+ ShowGraphWindow();
+
return 0;
}
+
int CmdLoad(const char *Cmd)
{
- FILE *f = fopen(Cmd, "r");
+ 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);
+
+ FILE *f = fopen(filename, "r");
if (!f) {
- PrintAndLog("couldn't open '%s'", Cmd);
+ PrintAndLog("couldn't open '%s'", filename);
return 0;
}
if (max != min) {
for (i = 0; i < GraphTraceLen; ++i) {
- GraphBuffer[i] = (GraphBuffer[i] - ((max + min) / 2)) * 256 /
- (max - min);
- //marshmelow: adjusted *1000 to *256 to make +/- 128 so demod commands still work
+ 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)
{
- FILE *f = fopen(Cmd, "w");
+ 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);
+
+
+ FILE *f = fopen(filename, "w");
if(!f) {
- PrintAndLog("couldn't open '%s'", Cmd);
+ PrintAndLog("couldn't open '%s'", filename);
return 0;
}
int i;
{
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 or 1>] -- Attempt to demodulate ASK/Manchester tags and output binary (args optional[clock will try Auto-detect])"},
- {"askrawdemod", Cmdaskrawdemod, 1, "[clock] [invert<0 or 1>] -- Attempt to demodulate ASK tags and output binary (args optional[clock will try Auto-detect])"},
+ {"askmandemod", Cmdaskmandemod, 1, "[clock] [invert<0|1>] -- Attempt to demodulate ASK/Manchester tags and output binary (args optional[clock will try Auto-detect])"},
+ {"askrawdemod", Cmdaskrawdemod, 1, "[clock] [invert<0|1>] -- Attempt to demodulate ASK tags and output binary (args optional[clock will try Auto-detect])"},
{"autocorr", CmdAutoCorr, 1, "<window length> -- Autocorrelation over window"},
{"biphaserawdecode",CmdBiphaseDecodeRaw,1,"[offset] Biphase decode binary stream already in graph buffer (offset = bit to start decode from)"},
{"bitsamples", CmdBitsamples, 0, "Get raw samples as bitstring"},
{"bitstream", CmdBitstream, 1, "[clock rate] -- Convert waveform into a bitstream"},
{"buffclear", CmdBuffClear, 1, "Clear sample buffer and graph window"},
{"dec", CmdDec, 1, "Decimate samples"},
- {"detectclock", CmdDetectClockRate, 1, "Detect ASK, PSK, or NRZ clock rate"},
+ {"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)"},
+ {"fskrawdemod", CmdFSKrawdemod, 1, "[clock rate] [invert] [rchigh] [rclow] Demodulate graph window from FSK to binary (clock = 50)(invert = 1|0)(rchigh = 10)(rclow=8)"},
{"grid", CmdGrid, 1, "<x> <y> -- overlay grid on graph window, use zero value to turn off either"},
- {"hexsamples", CmdHexsamples, 0, "<bytes> [<offset>] -- Dump big buffer as hex bytes"},
+ {"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 +/-128"},
+ {"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 or 1>] -- Attempt to demodulate psk indala tags and output ID binary & hex (args optional[clock will try Auto-detect])"},
- {"psknrzrawdemod",CmdpskNRZrawDemod, 1, "[clock] [invert<0 or 1>] -- Attempt to demodulate psk or nrz tags and output binary (args optional[clock will try Auto-detect])"},
+ {"pskclean", CmdPskClean, 1, "Attempt to clean psk wave"},
+ {"pskdetectclock",CmdDetectNRZpskClockRate, 1, "Detect ASK, PSK, or NRZ clock rate"},
+ {"pskindalademod",CmdIndalaDecode, 1, "[clock] [invert<0|1>] -- Attempt to demodulate psk indala tags and output ID binary & hex (args optional[clock will try Auto-detect])"},
+ {"psknrzrawdemod",CmdpskNRZrawDemod, 1, "[clock] [invert<0|1>] -- Attempt to demodulate psk or nrz tags and output binary (args optional[clock will try Auto-detect])"},
{"samples", CmdSamples, 0, "[512 - 40000] -- Get raw samples for graph window"},
{"save", CmdSave, 1, "<filename> -- Save trace (from graph window)"},
{"scale", CmdScale, 1, "<int> -- Set cursor display scale"},
{"threshold", CmdThreshold, 1, "<threshold> -- Maximize/minimize every value in the graph window depending on threshold"},
- {"dirthreshold", CmdDirectionalThreshold, 1, "<thres up> <thres down> -- Max rising higher up-thres/ Min falling lower down-thres, keep rest as prev."},
- {"tune", CmdTuneSamples, 0, "Get hw tune samples for graph window"},
+ {"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