//by marshmellow
void setDemodBuf(uint8_t *buff, size_t size, size_t startIdx)
{
+ 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++];
}
//by marshmellow
-void printDemodBuff()
+void printDemodBuff(void)
{
uint32_t i = 0;
int bitLen = DemodBufferLen;
return;
}
-
+int CmdPrintDemodBuff(const char *Cmd)
+{
+ char hex;
+ char printBuff[512]={0x00};
+ uint8_t numBits = DemodBufferLen & 0xFFF0;
+ sscanf(Cmd, "%c", &hex);
+ if (hex == 'h'){
+ PrintAndLog("Usage: data printdemodbuffer [x]");
+ PrintAndLog("Options: ");
+ PrintAndLog(" h This help");
+ PrintAndLog(" x output in hex (omit for binary output)");
+ return 0;
+ }
+ if (hex == 'x'){
+ numBits = binarraytohex(printBuff, (char *)DemodBuffer, numBits);
+ if (numBits==0) return 0;
+ PrintAndLog("DemodBuffer: %s",printBuff);
+ } else {
+ printDemodBuff();
+ }
+ return 1;
+}
int CmdAmp(const char *Cmd)
{
int i, rising, falling;
* Updates the Graph trace with 0/1 values
*
* Arguments:
- * c : 0 or 1
+ * c : 0 or 1 (or invert)
*/
- //this method is dependant on all highs and lows to be the same(or clipped) this creates issues[marshmellow] it also ignores the clock
+ //this method ignores the clock
+
+ //this function strictly converts highs and lows to 1s and 0s for each sample in the graphbuffer
int Cmdaskdemod(const char *Cmd)
{
int i;
int c, high = 0, low = 0;
- // TODO: complain if we do not give 2 arguments here !
- // (AL - this doesn't make sense! we're only using one argument!!!)
sscanf(Cmd, "%i", &c);
- /* Detect high and lows and clock */
- // (AL - clock???)
+ /* Detect high and lows */
for (i = 0; i < GraphTraceLen; ++i)
{
if (GraphBuffer[i] > high)
* down)
*/
//[marhsmellow] change == to >= for high and <= for low for fuzz
- if ((GraphBuffer[i] == high) && (GraphBuffer[i - 1] == c)) {
+ if ((GraphBuffer[i] >= high) && (GraphBuffer[i - 1] == c)) {
GraphBuffer[i] = 1 - c;
- } else if ((GraphBuffer[i] == low) && (GraphBuffer[i - 1] == (1 - c))){
+ } else if ((GraphBuffer[i] <= low) && (GraphBuffer[i - 1] == (1 - c))){
GraphBuffer[i] = c;
} else {
/* No transition */
return 0;
}
+//this function strictly converts >1 to 1 and <1 to 0 for each sample in the graphbuffer
+int CmdGetBitStream(const char *Cmd)
+{
+ int i;
+ CmdHpf(Cmd);
+ for (i = 0; i < GraphTraceLen; i++) {
+ if (GraphBuffer[i] >= 1) {
+ GraphBuffer[i] = 1;
+ } else {
+ GraphBuffer[i] = 0;
+ }
+ }
+ RepaintGraphWindow();
+ return 0;
+}
+
+
//by marshmellow
void printBitStream(uint8_t BitStream[], uint32_t bitLen)
{
return;
}
//by marshmellow
-//print EM410x ID in multiple formats
+//print 64 bit EM410x ID in multiple formats
void printEM410x(uint64_t id)
{
if (id !=0){
printDemodBuff();
}
PrintAndLog("EM410x pattern found: ");
+ if (BitLen > 64) PrintAndLog("\nWarning! Length not what is expected - Length: %d bits\n",BitLen);
printEM410x(lo);
return 1;
}
return 0;
}
-//by marshmellow
-//takes 3 arguments - clock, invert, maxErr 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 ASKmanDemod(const char *Cmd, bool verbose, bool emSearch)
{
int invert=0;
int clk=0;
int maxErr=100;
- char cmdp = param_getchar(Cmd, 0);
- if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') {
- PrintAndLog("Usage: data rawdemod am [clock] <0|1> [maxError]");
- PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
- PrintAndLog(" <invert>, 1 for invert output");
- PrintAndLog(" [set maximum allowed errors], default = 100.");
- PrintAndLog("");
- PrintAndLog(" sample: data rawdemod am = demod an ask/manchester tag from GraphBuffer");
- PrintAndLog(" : data rawdemod am 32 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32");
- PrintAndLog(" : data rawdemod am 32 1 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32 and inverting data");
- PrintAndLog(" : data rawdemod am 1 = demod an ask/manchester tag from GraphBuffer while inverting data");
- PrintAndLog(" : data rawdemod am 64 1 0 = demod an ask/manchester tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
-
- return 0;
- }
+
uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr);
if (invert != 0 && invert != 1) {
if (g_debugMode==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);
+ if (verbose) 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);
+ if (verbose) PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt);
}
- PrintAndLog("ASK/Manchester decoded bitstream:");
+ if (verbose) PrintAndLog("ASK/Manchester decoded bitstream:");
// Now output the bitstream to the scrollback by line of 16 bits
setDemodBuf(BitStream,BitLen,0);
- printDemodBuff();
+ if (verbose) 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();
+ if (emSearch){
+ 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();
+ }
+ if (verbose) PrintAndLog("EM410x pattern found: ");
+ if (verbose) printEM410x(lo);
+ return 1;
}
- PrintAndLog("EM410x pattern found: ");
- printEM410x(lo);
- return 1;
}
return 1;
}
+//by marshmellow
+//takes 3 arguments - clock, invert, maxErr as integers
+//attempts to demodulate ask while decoding manchester
+//prints binary found and saves in graphbuffer for further commands
+int Cmdaskmandemod(const char *Cmd)
+{
+ char cmdp = param_getchar(Cmd, 0);
+ if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') {
+ PrintAndLog("Usage: data rawdemod am [clock] <0|1> [maxError]");
+ PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
+ PrintAndLog(" <invert>, 1 for invert output");
+ PrintAndLog(" [set maximum allowed errors], default = 100.");
+ PrintAndLog("");
+ PrintAndLog(" sample: data rawdemod am = demod an ask/manchester tag from GraphBuffer");
+ PrintAndLog(" : data rawdemod am 32 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32");
+ PrintAndLog(" : data rawdemod am 32 1 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32 and inverting data");
+ PrintAndLog(" : data rawdemod am 1 = demod an ask/manchester tag from GraphBuffer while inverting data");
+ PrintAndLog(" : data rawdemod am 64 1 0 = demod an ask/manchester tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
+ return 0;
+ }
+ return ASKmanDemod(Cmd, TRUE, TRUE);
+}
+
//by marshmellow
//manchester decode
//stricktly take 10 and 01 and convert to 0 and 1
PrintAndLog("Biphase Decoded using offset: %d - # errors:%d - data:",offset,errCnt);
printBitStream(BitStream, size);
PrintAndLog("\nif bitstream does not look right try offset=1");
+ if (offset == 1) setDemodBuf(DemodBuffer,DemodBufferLen-1,1); //remove first bit from raw demod
return 1;
}
+// set demod buffer back to raw after biphase demod
+void setBiphaseDemodBuf(uint8_t *BitStream, size_t size)
+{
+ uint8_t rawStream[512]={0x00};
+ size_t i=0;
+ uint8_t curPhase=0;
+ if (size > 256) {
+ PrintAndLog("ERROR - Biphase Demod Buffer overrun");
+ return;
+ }
+ for (size_t idx=0; idx<size; idx++){
+ if(!BitStream[idx]){
+ rawStream[i++] = curPhase;
+ rawStream[i++] = curPhase;
+ curPhase ^= 1;
+ } else {
+ rawStream[i++] = curPhase;
+ rawStream[i++] = curPhase ^ 1;
+ }
+ }
+ setDemodBuf(rawStream,i,0);
+ return;
+}
//by marshmellow
//takes 4 arguments - clock, invert, maxErr as integers and amplify as char
//attempts to demodulate ask only
//prints binary found and saves in graphbuffer for further commands
-int Cmdaskrawdemod(const char *Cmd)
+int ASKrawDemod(const char *Cmd, bool verbose)
{
int invert=0;
int clk=0;
int maxErr=100;
uint8_t askAmp = 0;
char amp = param_getchar(Cmd, 0);
- char cmdp = param_getchar(Cmd, 0);
- if (strlen(Cmd) > 12 || cmdp == 'h' || cmdp == 'H') {
- PrintAndLog("Usage: data rawdemod ar [clock] <invert> [maxError] [amplify]");
- PrintAndLog(" [set clock as integer] optional, if not set, autodetect");
- PrintAndLog(" <invert>, 1 to invert output");
- PrintAndLog(" [set maximum allowed errors], default = 100");
- PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp");
- PrintAndLog("");
- PrintAndLog(" sample: data rawdemod ar = demod an ask tag from GraphBuffer");
- PrintAndLog(" : data rawdemod ar a = demod an ask tag from GraphBuffer, amplified");
- PrintAndLog(" : data rawdemod ar 32 = demod an ask tag from GraphBuffer using a clock of RF/32");
- PrintAndLog(" : data rawdemod ar 32 1 = demod an ask tag from GraphBuffer using a clock of RF/32 and inverting data");
- PrintAndLog(" : data rawdemod ar 1 = demod an ask tag from GraphBuffer while inverting data");
- PrintAndLog(" : data rawdemod ar 64 1 0 = demod an ask tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
- PrintAndLog(" : data rawdemod ar 64 1 0 a = demod an ask tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors, and amp");
- return 0;
- }
uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
sscanf(Cmd, "%i %i %i %c", &clk, &invert, &maxErr, &);
if (invert != 0 && invert != 1) {
- PrintAndLog("Invalid argument: %s", Cmd);
+ if (verbose) PrintAndLog("Invalid argument: %s", Cmd);
return 0;
}
if (clk==1){
int errCnt=0;
errCnt = askrawdemod(BitStream, &BitLen, &clk, &invert, maxErr, askAmp);
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);
+ if (verbose) PrintAndLog("no data found");
+ if (g_debugMode==1 && verbose) 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);
+ if (verbose) PrintAndLog("Using Clock: %d - invert: %d - Bits Found: %d", clk, invert, BitLen);
//move BitStream back to DemodBuffer
setDemodBuf(BitStream,BitLen,0);
//output
- if (errCnt>0){
+ if (errCnt>0 && verbose){
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);
+ if (verbose){
+ PrintAndLog("ASK demoded bitstream:");
+ // Now output the bitstream to the scrollback by line of 16 bits
+ printBitStream(BitStream,BitLen);
+ }
+ return 1;
+}
+//by marshmellow
+//attempts to demodulate and identify a G_Prox_II verex/chubb card
+//WARNING: if it fails during some points it will destroy the DemodBuffer data
+// but will leave the GraphBuffer intact.
+//if successful it will push askraw data back to demod buffer ready for emulation
+int CmdG_Prox_II_Demod(const char *Cmd)
+{
+ int ans = ASKrawDemod(Cmd, FALSE);
+ if (ans <= 0) {
+ if (g_debugMode) PrintAndLog("Error AskrawDemod: %d",ans);
+ return ans;
+ }
+ size_t size = DemodBufferLen;
+ ans = BiphaseRawDecode(DemodBuffer, &size, 0, 0);
+ if (ans !=0) {
+ if (g_debugMode) PrintAndLog("Error BiphaseRawDecode: %d",ans);
+ return ans;
+ }
+ //call lfdemod.c demod for gProxII
+ ans = gProxII_Demod(DemodBuffer, &size);
+ if (ans < 0){
+ if (g_debugMode) PrintAndLog("Error gProxII_Demod 1st Try: %d",ans);
+ //try biphase again
+ ans = BiphaseRawDecode(DemodBuffer, &size, 1, 0);
+ if (ans != 0) {
+ if (g_debugMode) PrintAndLog("Error BiphaseRawDecode: %d",ans);
+ return ans;
+ }
+ ans = gProxII_Demod(DemodBuffer, &size);
+ if (ans < 0) {
+ if (g_debugMode) PrintAndLog("Error gProxII_Demod 1st Try: %d",ans);
+ return ans;
+ }
+ }
+ //got a good demod
+ uint32_t ByteStream[65] = {0x00};
+ uint8_t xorKey=0;
+ uint8_t keyCnt=0;
+ uint8_t bitCnt=0;
+ uint8_t ByteCnt=0;
+ size_t startIdx = ans + 6; //start after preamble
+ for (size_t idx = 0; idx<size-6; idx++){
+ if ((idx+1) % 5 == 0){
+ //spacer bit - should be 0
+ if (DemodBuffer[startIdx+idx] != 0) {
+ if (g_debugMode) PrintAndLog("Error spacer not 0: %d, pos: %d",DemodBuffer[startIdx+idx],startIdx+idx);
+ return -1;
+ }
+ continue;
+ }
+ if (keyCnt<8){ //lsb first
+ xorKey = xorKey | (DemodBuffer[startIdx+idx]<<keyCnt);
+ keyCnt++;
+ if (keyCnt==8 && g_debugMode) PrintAndLog("xorKey Found: %02x", xorKey);
+ continue;
+ }
+ //lsb first
+ ByteStream[ByteCnt] = ByteStream[ByteCnt] | (DemodBuffer[startIdx+idx]<<bitCnt);
+ bitCnt++;
+ if (bitCnt % 8 == 0){
+ if (g_debugMode) PrintAndLog("byte %d: %02x",ByteCnt,ByteStream[ByteCnt]);
+ bitCnt=0;
+ ByteCnt++;
+ }
+ }
+ for (uint8_t i = 0; i < ByteCnt; i++){
+ ByteStream[i] ^= xorKey; //xor
+ if (g_debugMode) PrintAndLog("byte %d after xor: %02x", i, ByteStream[i]);
+ }
+ //now ByteStream contains 64 bytes of decrypted raw tag data
+ //
+ uint8_t fmtLen = ByteStream[0]>>2;
+ uint32_t FC = 0;
+ uint32_t Card = 0;
+ uint32_t raw1 = bytebits_to_byte(DemodBuffer+ans,32);
+ uint32_t raw2 = bytebits_to_byte(DemodBuffer+ans+32, 32);
+ uint32_t raw3 = bytebits_to_byte(DemodBuffer+ans+64, 32);
+
+ if (fmtLen==36){
+ FC = ((ByteStream[3] & 0x7F)<<7) | (ByteStream[4]>>1);
+ Card = ((ByteStream[4]&1)<<19) | (ByteStream[5]<<11) | (ByteStream[6]<<3) | (ByteStream[7]>>5);
+ PrintAndLog("G-Prox-II Found: FmtLen %d, FC %d, Card %d",fmtLen,FC,Card);
+ } else if(fmtLen==26){
+ FC = ((ByteStream[3] & 0x7F)<<1) | (ByteStream[4]>>7);
+ Card = ((ByteStream[4]&0x7F)<<9) | (ByteStream[5]<<1) | (ByteStream[6]>>7);
+ PrintAndLog("G-Prox-II Found: FmtLen %d, FC %d, Card %d",fmtLen,FC,Card);
+ } else {
+ PrintAndLog("Unknown G-Prox-II Fmt Found: FmtLen %d",fmtLen);
+ }
+ PrintAndLog("Raw: %08x%08x%08x", raw1,raw2,raw3);
+ setBiphaseDemodBuf(DemodBuffer+ans, 96);
return 1;
}
+//by marshmellow - see ASKrawDemod
+int Cmdaskrawdemod(const char *Cmd)
+{
+ char cmdp = param_getchar(Cmd, 0);
+ if (strlen(Cmd) > 12 || cmdp == 'h' || cmdp == 'H') {
+ PrintAndLog("Usage: data rawdemod ar [clock] <invert> [maxError] [amplify]");
+ PrintAndLog(" [set clock as integer] optional, if not set, autodetect");
+ PrintAndLog(" <invert>, 1 to invert output");
+ PrintAndLog(" [set maximum allowed errors], default = 100");
+ PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp");
+ PrintAndLog("");
+ PrintAndLog(" sample: data rawdemod ar = demod an ask tag from GraphBuffer");
+ PrintAndLog(" : data rawdemod ar a = demod an ask tag from GraphBuffer, amplified");
+ PrintAndLog(" : data rawdemod ar 32 = demod an ask tag from GraphBuffer using a clock of RF/32");
+ PrintAndLog(" : data rawdemod ar 32 1 = demod an ask tag from GraphBuffer using a clock of RF/32 and inverting data");
+ PrintAndLog(" : data rawdemod ar 1 = demod an ask tag from GraphBuffer while inverting data");
+ PrintAndLog(" : data rawdemod ar 64 1 0 = demod an ask tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
+ PrintAndLog(" : data rawdemod ar 64 1 0 a = demod an ask tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors, and amp");
+ return 0;
+ }
+ return ASKrawDemod(Cmd, TRUE);
+}
+
int CmdAutoCorr(const char *Cmd)
{
static int CorrelBuffer[MAX_GRAPH_TRACE_LEN];
//fsk raw demod and print binary
//takes 4 arguments - Clock, invert, fchigh, fclow
//defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a))
-int CmdFSKrawdemod(const char *Cmd)
+int FSKrawDemod(const char *Cmd, bool verbose)
{
//raw fsk demod no manchester decoding no start bit finding just get binary from wave
//set defaults
int rfLen = 0;
- int invert=0;
- int fchigh=0;
- int fclow=0;
- char cmdp = param_getchar(Cmd, 0);
- if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') {
- PrintAndLog("Usage: data rawdemod fs [clock] <invert> [fchigh] [fclow]");
- PrintAndLog(" [set clock as integer] optional, omit for autodetect.");
- PrintAndLog(" <invert>, 1 for invert output, can be used even if the clock is omitted");
- PrintAndLog(" [fchigh], larger field clock length, omit for autodetect");
- PrintAndLog(" [fclow], small field clock length, omit for autodetect");
- PrintAndLog("");
- PrintAndLog(" sample: data rawdemod fs = demod an fsk tag from GraphBuffer using autodetect");
- PrintAndLog(" : data rawdemod fs 32 = demod an fsk tag from GraphBuffer using a clock of RF/32, autodetect fc");
- PrintAndLog(" : data rawdemod fs 1 = demod an fsk tag from GraphBuffer using autodetect, invert output");
- PrintAndLog(" : data rawdemod fs 32 1 = demod an fsk tag from GraphBuffer using a clock of RF/32, invert output, autodetect fc");
- PrintAndLog(" : data rawdemod fs 64 0 8 5 = demod an fsk1 RF/64 tag from GraphBuffer");
- PrintAndLog(" : data rawdemod fs 50 0 10 8 = demod an fsk2 RF/50 tag from GraphBuffer");
- PrintAndLog(" : data rawdemod fs 50 1 10 8 = demod an fsk2a RF/50 tag from GraphBuffer");
- return 0;
- }
+ 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);
uint16_t fcs=0;
uint8_t dummy=0;
if (fchigh==0 || fclow == 0){
- fcs=countFC(BitStream, BitLen, &dummy);
+ fcs = countFC(BitStream, BitLen, &dummy);
if (fcs==0){
fchigh=10;
fclow=8;
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);
+ if (verbose) 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
+ if (verbose) {
+ PrintAndLog("FSK decoded bitstream:");
printBitStream(BitStream,size);
+ }
+
return 1;
} else{
- PrintAndLog("no FSK data found");
+ if (verbose) PrintAndLog("no FSK data found");
}
return 0;
}
+//by marshmellow
+//fsk raw demod and print binary
+//takes 4 arguments - Clock, invert, fchigh, fclow
+//defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a))
+int CmdFSKrawdemod(const char *Cmd)
+{
+ char cmdp = param_getchar(Cmd, 0);
+ if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') {
+ PrintAndLog("Usage: data rawdemod fs [clock] <invert> [fchigh] [fclow]");
+ PrintAndLog(" [set clock as integer] optional, omit for autodetect.");
+ PrintAndLog(" <invert>, 1 for invert output, can be used even if the clock is omitted");
+ PrintAndLog(" [fchigh], larger field clock length, omit for autodetect");
+ PrintAndLog(" [fclow], small field clock length, omit for autodetect");
+ PrintAndLog("");
+ PrintAndLog(" sample: data rawdemod fs = demod an fsk tag from GraphBuffer using autodetect");
+ PrintAndLog(" : data rawdemod fs 32 = demod an fsk tag from GraphBuffer using a clock of RF/32, autodetect fc");
+ PrintAndLog(" : data rawdemod fs 1 = demod an fsk tag from GraphBuffer using autodetect, invert output");
+ PrintAndLog(" : data rawdemod fs 32 1 = demod an fsk tag from GraphBuffer using a clock of RF/32, invert output, autodetect fc");
+ PrintAndLog(" : data rawdemod fs 64 0 8 5 = demod an fsk1 RF/64 tag from GraphBuffer");
+ PrintAndLog(" : data rawdemod fs 50 0 10 8 = demod an fsk2 RF/50 tag from GraphBuffer");
+ PrintAndLog(" : data rawdemod fs 50 1 10 8 = demod an fsk2a RF/50 tag from GraphBuffer");
+ return 0;
+ }
+ return FSKrawDemod(Cmd, TRUE);
+}
+
//by marshmellow (based on existing demod + holiman's refactor)
//HID Prox demod - FSK RF/50 with preamble of 00011101 (then manchester encoded)
//print full HID Prox ID and some bit format details if found
}
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 );
+ uint32_t rawLo = bytebits_to_byte(BitStream+idx+64,32);
+ uint32_t rawHi = bytebits_to_byte(BitStream+idx+32,32);
+ uint32_t rawHi2 = bytebits_to_byte(BitStream+idx,32);
+
+ PrintAndLog("Paradox TAG ID: %x%08x - FC: %d - Card: %d - Checksum: %02x - RAW: %08x%08x%08x",
+ hi>>10, (hi & 0x3)<<26 | (lo>>10), fc, cardnum, (lo>>2) & 0xFF, rawHi2, rawHi, rawLo);
setDemodBuf(BitStream,BitLen,idx);
if (g_debugMode){
PrintAndLog("DEBUG: idx: %d, len: %d, Printing Demod Buffer:", idx, BitLen);
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);
+ PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, rawHi2, rawHi, rawLo);
} else {
cardnum = bytebits_to_byte(BitStream+8+(fmtLen-17), 16);
if (fmtLen>32){
code1 = bytebits_to_byte(BitStream+8,fmtLen-32);
code2 = bytebits_to_byte(BitStream+8+(fmtLen-32),32);
- PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x%08x, Raw: %x%08x%08x", fmtLen, cardnum, code1, code2, rawHi2, rawHi, rawLo);
+ PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, code2, rawHi2, rawHi, rawLo);
} else{
code1 = bytebits_to_byte(BitStream+8,fmtLen);
- PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x, Raw: %x%08x%08x", fmtLen, cardnum, code1, rawHi2, rawHi, rawLo);
+ PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, rawHi2, rawHi, rawLo);
}
}
if (g_debugMode){
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);
+ PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %08x%08x%08x%08x", fmtLen, fc, cardnum, code1, rawHi3, rawHi2, rawHi, rawLo);
} else if (fmtLen==45){
fmtLen=42; //end = 10 bits not 7 like 26 bit fmt
fc = bytebits_to_byte(BitStream+53, 10);
cardnum = bytebits_to_byte(BitStream+63, 32);
- PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Raw: %x%08x%08x%08x", fmtLen, fc, cardnum, rawHi3, rawHi2, rawHi, rawLo);
+ PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Raw: %08x%08x%08x%08x", fmtLen, fc, cardnum, rawHi3, rawHi2, rawHi, rawLo);
} else {
cardnum = bytebits_to_byte(BitStream+81, 16);
if (fmtLen>32){
//code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen-32);
//code2 = bytebits_to_byte(BitStream+(size-32),32);
- PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo);
+ PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %08x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo);
} else{
//code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen);
- PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo);
+ PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %08x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo);
}
}
if (g_debugMode){
//by marshmellow
//attempt to psk1 demod graph buffer
-int PSKDemod(const char *Cmd, uint8_t verbose)
+int PSKDemod(const char *Cmd, bool verbose)
{
int invert=0;
int clk=0;
clk=0;
}
if (invert != 0 && invert != 1) {
- PrintAndLog("Invalid argument: %s", Cmd);
+ if (verbose) PrintAndLog("Invalid argument: %s", Cmd);
return -1;
}
uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
size_t BitLen = getFromGraphBuf(BitStream);
- if (BitLen==0) return 0;
+ if (BitLen==0) return -1;
+ uint8_t carrier=countPSK_FC(BitStream, BitLen);
+ if (carrier!=2 && carrier!=4 && carrier!=8){
+ //invalid carrier
+ return -1;
+ }
int errCnt=0;
- errCnt = pskRawDemod(BitStream, &BitLen,&clk,&invert);
+ errCnt = pskRawDemod(BitStream, &BitLen, &clk, &invert);
if (errCnt > maxErr){
- if (g_debugMode==1) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
+ if (g_debugMode==1 && verbose) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
return -1;
}
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);
+ if (g_debugMode==1 && verbose) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
return -1;
}
if (verbose) PrintAndLog("Tried PSK Demod using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen);
// takes 3 arguments - clock, invert, maxErr as integers
// attempts to demodulate nrz only
// prints binary found and saves in demodbuffer for further commands
-int CmdNRZrawDemod(const char *Cmd)
+
+int NRZrawDemod(const char *Cmd, bool verbose)
{
int invert=0;
int clk=0;
int maxErr=100;
- char cmdp = param_getchar(Cmd, 0);
- if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') {
- PrintAndLog("Usage: data rawdemod nr [clock] <0|1> [maxError]");
- PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
- PrintAndLog(" <invert>, 1 for invert output");
- PrintAndLog(" [set maximum allowed errors], default = 100.");
- PrintAndLog("");
- PrintAndLog(" sample: data nrzrawdemod = demod a nrz/direct tag from GraphBuffer");
- PrintAndLog(" : data nrzrawdemod 32 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32");
- PrintAndLog(" : data nrzrawdemod 32 1 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32 and inverting data");
- PrintAndLog(" : data nrzrawdemod 1 = demod a nrz/direct tag from GraphBuffer while inverting data");
- PrintAndLog(" : data nrzrawdemod 64 1 0 = demod a nrz/direct tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
-
- return 0;
- }
-
sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr);
if (clk==1){
invert=1;
int errCnt=0;
errCnt = nrzRawDemod(BitStream, &BitLen, &clk, &invert, maxErr);
if (errCnt > maxErr){
- if (g_debugMode==1) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
+ if (g_debugMode==1 && verbose) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
return 0;
}
if (errCnt<0|| BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first)
- if (g_debugMode==1) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
+ if (g_debugMode==1 && verbose) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
return 0;
}
- PrintAndLog("Tried NRZ Demod using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen);
+ if (verbose)
+ PrintAndLog("Tried NRZ Demod using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen);
//prime demod buffer for output
setDemodBuf(BitStream,BitLen,0);
- if (errCnt>0){
+ if (errCnt>0 && verbose){
PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt);
- }else{
}
+ if (verbose) {
PrintAndLog("NRZ demoded bitstream:");
// Now output the bitstream to the scrollback by line of 16 bits
printDemodBuff();
- return 1;
+ }
+ return 1;
+}
+
+int CmdNRZrawDemod(const char *Cmd)
+{
+ char cmdp = param_getchar(Cmd, 0);
+ if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') {
+ PrintAndLog("Usage: data rawdemod nr [clock] <0|1> [maxError]");
+ PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
+ PrintAndLog(" <invert>, 1 for invert output");
+ PrintAndLog(" [set maximum allowed errors], default = 100.");
+ PrintAndLog("");
+ PrintAndLog(" sample: data rawdemod nr = demod a nrz/direct tag from GraphBuffer");
+ PrintAndLog(" : data rawdemod nr 32 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32");
+ PrintAndLog(" : data rawdemod nr 32 1 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32 and inverting data");
+ PrintAndLog(" : data rawdemod nr 1 = demod a nrz/direct tag from GraphBuffer while inverting data");
+ PrintAndLog(" : data rawdemod nr 64 1 0 = demod a nrz/direct tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
+ return 0;
+ }
+ return NRZrawDemod(Cmd, TRUE);
}
// by marshmellow
PrintAndLog(" <invert>, 1 for invert output");
PrintAndLog(" [set maximum allowed errors], default = 100.");
PrintAndLog("");
- PrintAndLog(" sample: data psk1rawdemod = demod a psk1 tag from GraphBuffer");
- PrintAndLog(" : data psk1rawdemod 32 = demod a psk1 tag from GraphBuffer using a clock of RF/32");
- PrintAndLog(" : data psk1rawdemod 32 1 = demod a psk1 tag from GraphBuffer using a clock of RF/32 and inverting data");
- PrintAndLog(" : data psk1rawdemod 1 = demod a psk1 tag from GraphBuffer while inverting data");
- PrintAndLog(" : data psk1rawdemod 64 1 0 = demod a psk1 tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
+ PrintAndLog(" sample: data rawdemod p1 = demod a psk1 tag from GraphBuffer");
+ PrintAndLog(" : data rawdemod p1 32 = demod a psk1 tag from GraphBuffer using a clock of RF/32");
+ PrintAndLog(" : data rawdemod p1 32 1 = demod a psk1 tag from GraphBuffer using a clock of RF/32 and inverting data");
+ PrintAndLog(" : data rawdemod p1 1 = demod a psk1 tag from GraphBuffer while inverting data");
+ PrintAndLog(" : data rawdemod p1 64 1 0 = demod a psk1 tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
return 0;
}
- errCnt = PSKDemod(Cmd, 1);
+ errCnt = PSKDemod(Cmd, TRUE);
//output
if (errCnt<0){
if (g_debugMode) PrintAndLog("Error demoding: %d",errCnt);
}
if (errCnt>0){
PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt);
- }else{
}
PrintAndLog("PSK demoded bitstream:");
// Now output the bitstream to the scrollback by line of 16 bits
PrintAndLog(" <invert>, 1 for invert output");
PrintAndLog(" [set maximum allowed errors], default = 100.");
PrintAndLog("");
- PrintAndLog(" sample: data psk2rawdemod = demod a psk2 tag from GraphBuffer, autodetect clock");
- PrintAndLog(" : data psk2rawdemod 32 = demod a psk2 tag from GraphBuffer using a clock of RF/32");
- PrintAndLog(" : data psk2rawdemod 32 1 = demod a psk2 tag from GraphBuffer using a clock of RF/32 and inverting output");
- PrintAndLog(" : data psk2rawdemod 1 = demod a psk2 tag from GraphBuffer, autodetect clock and invert output");
- PrintAndLog(" : data psk2rawdemod 64 1 0 = demod a psk2 tag from GraphBuffer using a clock of RF/64, inverting output and allowing 0 demod errors");
+ PrintAndLog(" sample: data rawdemod p2 = demod a psk2 tag from GraphBuffer, autodetect clock");
+ PrintAndLog(" : data rawdemod p2 32 = demod a psk2 tag from GraphBuffer using a clock of RF/32");
+ PrintAndLog(" : data rawdemod p2 32 1 = demod a psk2 tag from GraphBuffer using a clock of RF/32 and inverting output");
+ PrintAndLog(" : data rawdemod p2 1 = demod a psk2 tag from GraphBuffer, autodetect clock and invert output");
+ PrintAndLog(" : data rawdemod p2 64 1 0 = demod a psk2 tag from GraphBuffer using a clock of RF/64, inverting output and allowing 0 demod errors");
return 0;
}
- errCnt=PSKDemod(Cmd, 1);
+ errCnt=PSKDemod(Cmd, TRUE);
if (errCnt<0){
if (g_debugMode) PrintAndLog("Error demoding: %d",errCnt);
return 0;
return 0;
}
+//zero mean GraphBuffer
int CmdHpf(const char *Cmd)
{
int i;
//{"askdemod", Cmdaskdemod, 1, "<0 or 1> -- Attempt to demodulate simple ASK tags"},
{"askedgedetect", CmdAskEdgeDetect, 1, "[threshold] Adjust Graph for manual ask demod using length of sample differences to detect the edge of a wave (default = 25)"},
{"askem410xdemod",CmdAskEM410xDemod, 1, "[clock] [invert<0|1>] [maxErr] -- Demodulate an EM410x tag from GraphBuffer (args optional)"},
+ {"askgproxiidemod",CmdG_Prox_II_Demod,1, "Demodulate a G Prox II tag from GraphBuffer"},
//{"askmandemod", Cmdaskmandemod, 1, "[clock] [invert<0|1>] [maxErr] -- 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"},
{"fskpyramiddemod",CmdFSKdemodPyramid,1, "Demodulate a Pyramid FSK tag from GraphBuffer"},
{"fskparadoxdemod",CmdFSKdemodParadox,1, "Demodulate a Paradox FSK tag from GraphBuffer"},
//{"fskrawdemod", CmdFSKrawdemod, 1, "[clock rate] [invert] [rchigh] [rclow] Demodulate graph window from FSK to bin (clock = 50)(invert = 1|0)(rchigh = 10)(rclow=8)"},
+ {"getbitstream", CmdGetBitStream, 1, "Convert GraphBuffer's >=1 values to 1 and <1 to 0"},
{"grid", CmdGrid, 1, "<x> <y> -- overlay grid on graph window, use zero value to turn off either"},
{"hexsamples", CmdHexsamples, 0, "<bytes> [<offset>] -- Dump big buffer as hex bytes"},
{"hide", CmdHide, 1, "Hide graph window"},
//{"nrzrawdemod", CmdNRZrawDemod, 1, "[clock] [invert<0|1>] [maxErr] -- Attempt to demodulate nrz tags and output binary (args optional)"},
{"plot", CmdPlot, 1, "Show graph window (hit 'h' in window for keystroke help)"},
//{"pskdetectclock",CmdDetectPSKClockRate, 1, "Detect ASK, PSK, or NRZ clock rate"},
+ {"printdemodbuffer",CmdPrintDemodBuff,1, "[x] -- print the data in the DemodBuffer - 'x' for hex output"},
{"pskindalademod",CmdIndalaDecode, 1, "[clock] [invert<0|1>] -- Demodulate an indala tag (PSK1) from GraphBuffer (args optional)"},
//{"psk1rawdemod", CmdPSK1rawDemod, 1, "[clock] [invert<0|1>] [maxErr] -- Attempt to demodulate psk1 tags and output binary (args optional)"},
//{"psk2rawdemod", CmdPSK2rawDemod, 1, "[clock] [invert<0|1>] [maxErr] -- Attempt to demodulate psk2 tags and output binary (args optional)"},
projects / proxmark3-svn / blobdiff