#include "cmdmain.h"
#include "cmddata.h"
#include "lfdemod.h"
+#include "usb_cmd.h"
+
uint8_t DemodBuffer[MAX_DEMOD_BUF_LEN];
uint8_t g_debugMode;
int DemodBufferLen;
return;
}
if (bitLen>512) bitLen=512; //max output to 512 bits if we have more - should be plenty
+
+ // 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],
//by marshmellow
void printBitStream(uint8_t BitStream[], uint32_t bitLen)
{
- uint32_t i = 0;
- if (bitLen<16) {
- PrintAndLog("Too few bits found: %d",bitLen);
- return;
- }
- if (bitLen>512) bitLen=512;
- for (i = 0; i <= (bitLen-16); i+=16) {
- PrintAndLog("%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i",
- BitStream[i],
- BitStream[i+1],
- BitStream[i+2],
- BitStream[i+3],
- BitStream[i+4],
- BitStream[i+5],
- BitStream[i+6],
- BitStream[i+7],
- BitStream[i+8],
- BitStream[i+9],
- BitStream[i+10],
- BitStream[i+11],
- BitStream[i+12],
- BitStream[i+13],
- BitStream[i+14],
- BitStream[i+15]);
- }
+ 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;
+
+
+ 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
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)));
- }
+ 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));
- }
- return;
+ }
+ //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)
+//takes 3 arguments - clock, invert and maxErr as integers
+//attempts to demodulate ask while decoding manchester
+//prints binary found and saves in graphbuffer for further commands
+int CmdAskEM410xDemod(const char *Cmd)
{
- uint64_t id=0;
- size_t size = DemodBufferLen, idx=0;
- id = Em410xDecode(DemodBuffer, &size, &idx);
- if (id>0){
- setDemodBuf(DemodBuffer, size, idx);
+ 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 askem410xdemod [clock] <0|1> [maxError]");
+ PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
+ PrintAndLog(" <invert>, 1 for invert output");
+ PrintAndLog(" [set maximum allowed errors], default = 100.");
+ PrintAndLog("");
+ PrintAndLog(" sample: data askem410xdemod = demod an EM410x Tag ID from GraphBuffer");
+ PrintAndLog(" : data askem410xdemod 32 = demod an EM410x Tag ID from GraphBuffer using a clock of RF/32");
+ PrintAndLog(" : data askem410xdemod 32 1 = demod an EM410x Tag ID from GraphBuffer using a clock of RF/32 and inverting data");
+ PrintAndLog(" : data askem410xdemod 1 = demod an EM410x Tag ID from GraphBuffer while inverting data");
+ PrintAndLog(" : data askem410xdemod 64 1 0 = demod an EM410x Tag ID from GraphBuffer using a clock of RF/64 and inverting data and allowing 0 demod errors");
+
+ return 0;
+ }
+
+
+ uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
+ sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr);
+ if (invert != 0 && invert != 1) {
+ PrintAndLog("Invalid argument: %s", Cmd);
+ return 0;
+ }
+ size_t BitLen = getFromGraphBuf(BitStream);
+
+ if (g_debugMode==1) PrintAndLog("DEBUG: Bitlen from grphbuff: %d",BitLen);
+ if (BitLen==0) return 0;
+ int errCnt=0;
+ errCnt = askmandemod(BitStream, &BitLen, &clk, &invert, maxErr);
+ 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("\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,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: Printing demod buffer:");
+ PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, BitLen);
printDemodBuff();
}
- printEM410x(id);
- return 1;
+ PrintAndLog("EM410x pattern found: ");
+ printEM410x(lo);
+ return 1;
}
return 0;
}
-
//by marshmellow
-//takes 2 arguments - clock and invert both as integers
+//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 invert=0;
- int clk=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 askmandemod = demod an ask/manchester tag from GraphBuffer");
+ PrintAndLog(" : data askmandemod 32 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32");
+ PrintAndLog(" : data askmandemod 32 1 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32 and inverting data");
+ PrintAndLog(" : data askmandemod 1 = demod an ask/manchester tag from GraphBuffer while inverting data");
+ PrintAndLog(" : data askmandemod 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", &clk, &invert);
+ sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr);
if (invert != 0 && invert != 1) {
PrintAndLog("Invalid argument: %s", Cmd);
return 0;
}
-
- size_t BitLen = getFromGraphBuf(BitStream);
+ if (clk==1){
+ invert=1;
+ clk=0;
+ }
+ size_t BitLen = getFromGraphBuf(BitStream);
if (g_debugMode==1) PrintAndLog("DEBUG: Bitlen from grphbuff: %d",BitLen);
+ if (BitLen==0) return 0;
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);
+ errCnt = askmandemod(BitStream, &BitLen, &clk, &invert, maxErr);
+ 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("\nUsing Clock: %d - Invert: %d - Bits Found: %d",clk,invert,BitLen);
//output
}
PrintAndLog("ASK/Manchester decoded bitstream:");
// Now output the bitstream to the scrollback by line of 16 bits
- setDemodBuf(BitStream,BitLen,0);
- printDemodBuff();
+ setDemodBuf(BitStream,BitLen,0);
+ printDemodBuff();
uint64_t lo =0;
size_t idx=0;
lo = Em410xDecode(BitStream, &BitLen, &idx);
printEM410x(lo);
return 1;
}
- return 0;
+ return 1;
}
//by marshmellow
{
int i =0;
int errCnt=0;
- size_t size=0;
+ size_t size=0;
+ size_t maxErr = 20;
+ char cmdp = param_getchar(Cmd, 0);
+ if (strlen(Cmd) > 1 || cmdp == 'h' || cmdp == 'H') {
+ PrintAndLog("Usage: data manrawdecode");
+ PrintAndLog(" Takes 10 and 01 and converts to 0 and 1 respectively");
+ PrintAndLog(" --must have binary sequence in demodbuffer (run data askrawdemod first)");
+ PrintAndLog("");
+ PrintAndLog(" sample: data manrawdecode = decode manchester bitstream from the demodbuffer");
+ return 0;
+ }
+ if (DemodBufferLen==0) return 0;
uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
int high=0,low=0;
- for (;i<DemodBufferLen;++i){
- if (DemodBuffer[i]>high) high=DemodBuffer[i];
- else if(DemodBuffer[i]<low) low=DemodBuffer[i];
- BitStream[i]=DemodBuffer[i];
+ for (;i<DemodBufferLen;++i){
+ if (DemodBuffer[i]>high) high=DemodBuffer[i];
+ else if(DemodBuffer[i]<low) low=DemodBuffer[i];
+ BitStream[i]=DemodBuffer[i];
}
if (high>1 || low <0 ){
PrintAndLog("Error: please raw demod the wave first then mancheseter raw decode");
return 0;
}
- size=i;
- errCnt=manrawdecode(BitStream, &size);
- if (errCnt>=20){
+ size=i;
+ errCnt=manrawdecode(BitStream, &size);
+ if (errCnt>=maxErr){
PrintAndLog("Too many errors: %d",errCnt);
return 0;
}
PrintAndLog("Manchester Decoded - # errors:%d - data:",errCnt);
- printBitStream(BitStream, size);
+ printBitStream(BitStream, size);
if (errCnt==0){
- uint64_t id = 0;
+ uint64_t id = 0;
size_t idx=0;
- id = Em410xDecode(BitStream, &size, &idx);
- if (id>0){
+ id = Em410xDecode(BitStream, &size, &idx);
+ if (id>0){
//need to adjust to set bitstream back to manchester encoded data
//setDemodBuf(BitStream, size, idx);
// 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 i = 0;
+ int errCnt=0;
size_t size=0;
- int offset=0;
- int invert=0;
- int high=0, low=0;
+ int offset=0;
+ int invert=0;
+ int high=0, low=0;
+ char cmdp = param_getchar(Cmd, 0);
+ if (strlen(Cmd) > 3 || cmdp == 'h' || cmdp == 'H') {
+ PrintAndLog("Usage: data biphaserawdecode [offset] <invert>");
+ PrintAndLog(" Converts 10 or 01 to 0 and 11 or 00 to 1");
+ PrintAndLog(" --must have binary sequence in demodbuffer (run data askrawdemod first)");
+ PrintAndLog("");
+ PrintAndLog(" [offset <0|1>], set to 0 not to adjust start position or to 1 to adjust decode start position");
+ PrintAndLog(" [invert <0|1>], set to 1 to invert output");
+ PrintAndLog("");
+ PrintAndLog(" sample: data biphaserawdecode = decode biphase bitstream from the demodbuffer");
+ PrintAndLog(" sample: data biphaserawdecode 1 1 = decode biphase bitstream from the demodbuffer, set offset, and invert output");
+ return 0;
+ }
sscanf(Cmd, "%i %i", &offset, &invert);
- uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
- //get graphbuffer & high and low
+ if (DemodBufferLen==0) return 0;
+ 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;
- }
+ }
+ 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);
+ 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;
+ PrintAndLog("\nif bitstream does not look right try offset=1");
+ return 1;
}
//by marshmellow
-//takes 2 arguments - clock and invert both as integers
+//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 invert=0;
- int clk=0;
+ 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 askrawdemod = demod an ask tag from GraphBuffer");
+ PrintAndLog(" : data askrawdemod a = demod an ask tag from GraphBuffer, amplified");
+ PrintAndLog(" : data askrawdemod 32 = demod an ask tag from GraphBuffer using a clock of RF/32");
+ PrintAndLog(" : data askrawdemod 32 1 = demod an ask tag from GraphBuffer using a clock of RF/32 and inverting data");
+ PrintAndLog(" : data askrawdemod 1 = demod an ask tag from GraphBuffer while inverting data");
+ PrintAndLog(" : data askrawdemod 64 1 0 = demod an ask tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
+ PrintAndLog(" : data askrawdemod 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", &clk, &invert);
+ sscanf(Cmd, "%i %i %i %c", &clk, &invert, &maxErr, &);
if (invert != 0 && invert != 1) {
PrintAndLog("Invalid argument: %s", Cmd);
return 0;
}
- size_t BitLen = getFromGraphBuf(BitStream);
+ if (clk==1){
+ invert=1;
+ clk=0;
+ }
+ if (amp == 'a' || amp == 'A') askAmp=1;
+ size_t BitLen = getFromGraphBuf(BitStream);
+ if (BitLen==0) return 0;
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, 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);
return 0;
- }
- PrintAndLog("Using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen);
+ }
+ PrintAndLog("Using Clock: %d - invert: %d - Bits Found: %d", clk, invert, BitLen);
//move BitStream back to DemodBuffer
- setDemodBuf(BitStream,BitLen,0);
+ setDemodBuf(BitStream,BitLen,0);
- //output
+ //output
if (errCnt>0){
- PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt);
+ 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
}
/* Get our clock */
- clock = GetClock(Cmd, high, 1);
+ clock = GetAskClock(Cmd, high, 1);
gtl = ClearGraph(0);
bit = 0;
RepaintGraphWindow();
return 0;
}
+/**
+ * Undecimate - I'd call it 'interpolate', but we'll save that
+ * name until someone does an actual interpolation command, not just
+ * blindly repeating samples
+ * @param Cmd
+ * @return
+ */
+int CmdUndec(const char *Cmd)
+{
+ if(param_getchar(Cmd, 0) == 'h')
+ {
+ PrintAndLog("Usage: data undec [factor]");
+ PrintAndLog("This function performs un-decimation, by repeating each sample N times");
+ PrintAndLog("Options: ");
+ PrintAndLog(" h This help");
+ PrintAndLog(" factor The number of times to repeat each sample.[default:2]");
+ PrintAndLog("Example: 'data undec 3'");
+ return 0;
+ }
+
+ uint8_t factor = param_get8ex(Cmd, 0,2, 10);
+ //We have memory, don't we?
+ int swap[MAX_GRAPH_TRACE_LEN] = { 0 };
+ uint32_t g_index = 0 ,s_index = 0;
+ while(g_index < GraphTraceLen && s_index < MAX_GRAPH_TRACE_LEN)
+ {
+ int count = 0;
+ for(count = 0; count < factor && s_index+count < MAX_GRAPH_TRACE_LEN; count ++)
+ swap[s_index+count] = GraphBuffer[g_index];
+ s_index+=count;
+ }
+
+ memcpy(GraphBuffer,swap, s_index * sizeof(int));
+ GraphTraceLen = s_index;
+ RepaintGraphWindow();
+ return 0;
+}
//by marshmellow
//shift graph zero up or down based on input + or -
return 0;
}
+//by marshmellow
+//use large jumps in read samples to identify edges of waves and then amplify that wave to max
+//similar to dirtheshold, threshold, and askdemod commands
+//takes a threshold length which is the measured length between two samples then determines an edge
+int CmdAskEdgeDetect(const char *Cmd)
+{
+ int thresLen = 25;
+ sscanf(Cmd, "%i", &thresLen);
+ int shift = 127;
+ int shiftedVal=0;
+ for(int i = 1; i<GraphTraceLen; i++){
+ if (GraphBuffer[i]-GraphBuffer[i-1]>=thresLen) //large jump up
+ shift=127;
+ else if(GraphBuffer[i]-GraphBuffer[i-1]<=-1*thresLen) //large jump down
+ shift=-127;
+
+ shiftedVal=GraphBuffer[i]+shift;
+
+ if (shiftedVal>127)
+ shiftedVal=127;
+ else if (shiftedVal<-127)
+ shiftedVal=-127;
+ GraphBuffer[i-1] = shiftedVal;
+ }
+ RepaintGraphWindow();
+ //CmdNorm("");
+ return 0;
+}
+
/* Print our clock rate */
// uses data from graphbuffer
+// adjusted to take char parameter for type of modulation to find the clock - by marshmellow.
int CmdDetectClockRate(const char *Cmd)
{
- GetClock("",0,0);
- //int clock = DetectASKClock(0);
- //PrintAndLog("Auto-detected clock rate: %d", clock);
- return 0;
+ char cmdp = param_getchar(Cmd, 0);
+ if (strlen(Cmd) > 3 || strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') {
+ PrintAndLog("Usage: data detectclock [modulation]");
+ PrintAndLog(" [modulation as char], specify the modulation type you want to detect the clock of");
+ PrintAndLog(" 'a' = ask, 'f' = fsk, 'n' = nrz/direct, 'p' = psk");
+ PrintAndLog("");
+ PrintAndLog(" sample: data detectclock a = detect the clock of an ask modulated wave in the GraphBuffer");
+ PrintAndLog(" data detectclock f = detect the clock of an fsk modulated wave in the GraphBuffer");
+ PrintAndLog(" data detectclock p = detect the clock of an psk modulated wave in the GraphBuffer");
+ PrintAndLog(" data detectclock n = detect the clock of an nrz/direct modulated wave in the GraphBuffer");
+ }
+ int ans=0;
+ if (cmdp == 'a'){
+ ans = GetAskClock("", true, false);
+ } else if (cmdp == 'f'){
+ ans = GetFskClock("", true, false);
+ } else if (cmdp == 'n'){
+ ans = GetNrzClock("", true, false);
+ } else if (cmdp == 'p'){
+ ans = GetPskClock("", true, false);
+ } else {
+ PrintAndLog ("Please specify a valid modulation to detect the clock of - see option h for help");
+ }
+ return ans;
}
//by marshmellow
//fsk raw demod and print binary
-//takes 4 arguments - Clock, invert, rchigh, rclow
-//defaults: clock = 50, invert=0, rchigh=10, rclow=8 (RF/10 RF/8 (fsk2a))
+//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)
{
//raw fsk demod no manchester decoding no start bit finding just get binary from wave
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 fskrawdemod = demod an fsk tag from GraphBuffer using autodetect");
+ PrintAndLog(" : data fskrawdemod 32 = demod an fsk tag from GraphBuffer using a clock of RF/32, autodetect fc");
+ PrintAndLog(" : data fskrawdemod 1 = demod an fsk tag from GraphBuffer using autodetect, invert output");
+ PrintAndLog(" : data fskrawdemod 32 1 = demod an fsk tag from GraphBuffer using a clock of RF/32, invert output, autodetect fc");
+ PrintAndLog(" : data fskrawdemod 64 0 8 5 = demod an fsk1 RF/64 tag from GraphBuffer");
+ PrintAndLog(" : data fskrawdemod 50 0 10 8 = demod an fsk2 RF/50 tag from GraphBuffer");
+ PrintAndLog(" : data fskrawdemod 50 1 10 8 = demod an fsk2a RF/50 tag from GraphBuffer");
+ return 0;
+ }
//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) {
if (rfLen==1){
invert=1; //if invert option only is used
rfLen = 0;
}
- }
+ }
uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
- size_t BitLen = getFromGraphBuf(BitStream);
+ size_t BitLen = getFromGraphBuf(BitStream);
+ if (BitLen==0) return 0;
//get field clock lengths
uint16_t fcs=0;
+ uint8_t dummy=0;
if (fchigh==0 || fclow == 0){
- fcs=countFC(BitStream, BitLen);
+ fcs=countFC(BitStream, BitLen, &dummy);
if (fcs==0){
fchigh=10;
fclow=8;
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);
+ 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);
+ 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);
+ return 1;
} else{
PrintAndLog("no FSK data found");
}
uint32_t hi2=0, hi=0, lo=0;
uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
- size_t BitLen = getFromGraphBuf(BitStream);
+ size_t BitLen = getFromGraphBuf(BitStream);
+ if (BitLen==0) return 0;
//get binary from fsk wave
- size_t idx = HIDdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo);
+ int idx = HIDdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo);
if (idx<0){
- if (g_debugMode) PrintAndLog("DEBUG: Error demoding fsk");
+ 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) {
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);
}
else { //standard HID tags <38 bits
lo2=lo2>>1;
idx3++;
}
- fmtLen =idx3+19;
+ fmtLen =idx3+19;
fc =0;
cardnum=0;
if(fmtLen==26){
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);
}
uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
size_t BitLen = getFromGraphBuf(BitStream);
+ if (BitLen==0) return 0;
//get binary from fsk wave
- size_t idx = ParadoxdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo);
+ int idx = ParadoxdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo);
if (idx<0){
- if (g_debugMode) PrintAndLog("DEBUG: Error demoding fsk");
+ 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){
return 1;
}
-
//by marshmellow
//IO-Prox demod - FSK RF/64 with preamble of 000000001
//print ioprox ID and some format details
{
//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) {
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);
+ size_t BitLen = getFromGraphBuf(BitStream);
+ if (BitLen==0) return 0;
//get binary from fsk wave
- idx = IOdemodFSK(BitStream,BitLen);
+ idx = IOdemodFSK(BitStream,BitLen);
if (idx<0){
- if (g_debugMode==1) PrintAndLog("DEBUG: demoding fsk error: %d", idx);
+ 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){
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);
+ PrintAndLog("IO Prox XSF(%02d)%02x:%05d (%08x%08x)",version,facilitycode,number,code,code2);
setDemodBuf(BitStream,64,idx);
- if (g_debugMode){
+ if (g_debugMode){
PrintAndLog("DEBUG: idx: %d, Len: %d, Printing demod buffer:",idx,64);
printDemodBuff();
}
- return 1;
+ return 1;
}
-
//by marshmellow
//AWID Prox demod - FSK RF/50 with preamble of 00000001 (always a 96 bit data stream)
//print full AWID Prox ID and some bit format details if found
//raw fsk demod no manchester decoding no start bit finding just get binary from wave
uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
size_t size = getFromGraphBuf(BitStream);
+ if (size==0) return 0;
//get binary from fsk wave
- int idx = AWIDdemodFSK(BitStream, size);
+ 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 - no waves");
+ 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 - Second AWID preamble not found");
+ PrintAndLog("DEBUG: Error - Size not correct: %d", size);
else
PrintAndLog("DEBUG: Error %d",idx);
}
//raw fsk demod no manchester decoding no start bit finding just get binary from wave
uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
size_t size = getFromGraphBuf(BitStream);
+ if (size==0) return 0;
//get binary from fsk wave
- int idx = PyramiddemodFSK(BitStream, size);
+ 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 - no waves");
+ PrintAndLog("DEBUG: Error - only noise found");
else if (idx == -2)
PrintAndLog("DEBUG: Error - problem during FSK demod");
else if (idx == -3)
- PrintAndLog("DEBUG: Error - Second Pyramid preamble not found");
+ PrintAndLog("DEBUG: Error - Size not correct: %d", size);
else if (idx == -4)
PrintAndLog("DEBUG: Error - Pyramid preamble not found");
else
PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo);
}
}
- //todo - convert hi2, hi, lo to demodbuffer for future sim/clone commands
if (g_debugMode){
PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, 128);
printDemodBuff();
}
//by marshmellow
-//attempt to detect the field clock and bit clock for FSK
-int CmdFSKfcDetect(const char *Cmd)
+//attempt to psk1 demod graph buffer
+int PSKDemod(const char *Cmd, uint8_t verbose)
{
- 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;
+ int invert=0;
+ int clk=0;
+ int maxErr=100;
+ sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr);
+ if (clk==1){
+ invert=1;
+ clk=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;
+ if (invert != 0 && invert != 1) {
+ PrintAndLog("Invalid argument: %s", Cmd);
+ return -1;
}
- 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;
+ uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
+ size_t BitLen = getFromGraphBuf(BitStream);
+ if (BitLen==0) return 0;
+ int errCnt=0;
+ 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);
+ 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);
+ return -1;
+ }
+ if (verbose) PrintAndLog("Tried PSK Demod using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen);
+ //prime demod buffer for output
+ setDemodBuf(BitStream,BitLen,0);
+ return errCnt;
}
-//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);
- }
+ int ans;
+ if (strlen(Cmd)>0){
+ ans = PSKDemod(Cmd, 0);
+ } else{ //default to RF/32
+ ans = PSKDemod("32", 0);
+ }
if (ans < 0){
if (g_debugMode==1)
- PrintAndLog("Error1: %d",ans);
+ 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);
+ PrintAndLog("Error2: %d",ans);
return -1;
}
- char showbits[251];
+ char showbits[251]={0x00};
if (invert)
- if (g_debugMode==1)
- PrintAndLog("Had to invert bits");
+ if (g_debugMode==1)
+ PrintAndLog("Had to invert bits");
//convert UID to HEX
uint32_t uid1, uid2, uid3, uid4, uid5, uid6, uid7;
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)
+// by marshmellow
+// takes 3 arguments - clock, invert, maxErr as integers
+// attempts to demodulate nrz only
+// prints binary found and saves in demodbuffer for further commands
+int CmdNRZrawDemod(const char *Cmd)
{
- uint8_t bitStream[MAX_GRAPH_TRACE_LEN]={0};
- size_t bitLen = getFromGraphBuf(bitStream);
- pskCleanWave(bitStream, bitLen);
- setGraphBuf(bitStream, bitLen);
- return 0;
+ 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;
+ clk=0;
+ }
+ if (invert != 0 && invert != 1) {
+ PrintAndLog("Invalid argument: %s", Cmd);
+ return 0;
+ }
+ uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
+ size_t BitLen = getFromGraphBuf(BitStream);
+ if (BitLen==0) return 0;
+ int errCnt=0;
+ errCnt = nrzRawDemod(BitStream, &BitLen, &clk, &invert, 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);
+ 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);
+ return 0;
+ }
+ 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){
+ PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt);
+ }else{
+ }
+ PrintAndLog("NRZ demoded bitstream:");
+ // Now output the bitstream to the scrollback by line of 16 bits
+ printDemodBuff();
+ return 1;
}
// by marshmellow
-// takes 2 arguments - clock and invert both as integers
+// takes 3 arguments - clock, invert, maxErr as integers
// attempts to demodulate psk only
// prints binary found and saves in demodbuffer for further commands
-int CmdpskNRZrawDemod(const char *Cmd)
+int CmdPSK1rawDemod(const char *Cmd)
{
int errCnt;
-
- errCnt = PSKnrzDemod(Cmd, 1);
- //output
- if (errCnt<0){
- if (g_debugMode) PrintAndLog("Error demoding: %d",errCnt);
+ char cmdp = param_getchar(Cmd, 0);
+ if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') {
+ PrintAndLog("Usage: data rawdemod p1 [clock] <0|1> [maxError]");
+ PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
+ PrintAndLog(" <invert>, 1 for invert output");
+ PrintAndLog(" [set maximum allowed errors], default = 100.");
+ PrintAndLog("");
+ PrintAndLog(" sample: data 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");
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;
+ errCnt = PSKDemod(Cmd, 1);
+ //output
+ if (errCnt<0){
+ if (g_debugMode) PrintAndLog("Error demoding: %d",errCnt);
+ return 0;
+ }
+ 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
+ printDemodBuff();
+ return 1;
}
// by marshmellow
-// takes same args as cmdpsknrzrawdemod
+// takes same args as cmdpsk1rawdemod
int CmdPSK2rawDemod(const char *Cmd)
{
int errCnt=0;
- errCnt=PSKnrzDemod(Cmd, 1);
+ char cmdp = param_getchar(Cmd, 0);
+ if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') {
+ PrintAndLog("Usage: data rawdemod p2 [clock] <0|1> [maxError]");
+ PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
+ PrintAndLog(" <invert>, 1 for invert output");
+ PrintAndLog(" [set maximum allowed errors], default = 100.");
+ PrintAndLog("");
+ PrintAndLog(" sample: data 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");
+ return 0;
+ }
+ errCnt=PSKDemod(Cmd, 1);
if (errCnt<0){
if (g_debugMode) PrintAndLog("Error demoding: %d",errCnt);
return 0;
return 1;
}
+// by marshmellow - combines all raw demod functions into one menu command
+int CmdRawDemod(const char *Cmd)
+{
+ char cmdp = Cmd[0]; //param_getchar(Cmd, 0);
+
+ if (strlen(Cmd) > 14 || cmdp == 'h' || cmdp == 'H' || strlen(Cmd)<2) {
+ PrintAndLog("Usage: data rawdemod [modulation] <help>|<options>");
+ PrintAndLog(" [modulation] as 2 char, 'am' for ask/manchester, 'ar' for ask/raw, 'fs' for fsk, 'nr' for nrz/direct, 'p1' for psk1, 'p2' for psk2");
+ PrintAndLog(" <help> as 'h', prints the help for the specific modulation");
+ PrintAndLog(" <options> see specific modulation help for optional parameters");
+ PrintAndLog("");
+ PrintAndLog(" sample: data rawdemod fs h = print help for ask/raw demod");
+ PrintAndLog(" : data rawdemod fs = demod GraphBuffer using: fsk - autodetect");
+ PrintAndLog(" : data rawdemod am = demod GraphBuffer using: ask/manchester - autodetect");
+ PrintAndLog(" : data rawdemod ar = demod GraphBuffer using: ask/raw - autodetect");
+ PrintAndLog(" : data rawdemod nr = demod GraphBuffer using: nrz/direct - autodetect");
+ PrintAndLog(" : data rawdemod p1 = demod GraphBuffer using: psk1 - autodetect");
+ PrintAndLog(" : data rawdemod p2 = demod GraphBuffer using: psk2 - autodetect");
+ return 0;
+ }
+ char cmdp2 = Cmd[1];
+ int ans = 0;
+ if (cmdp == 'f' && cmdp2 == 's'){
+ ans = CmdFSKrawdemod(Cmd+3);
+ } else if(cmdp == 'a' && cmdp2 == 'm'){
+ ans = Cmdaskmandemod(Cmd+3);
+ } else if(cmdp == 'a' && cmdp2 == 'r'){
+ ans = Cmdaskrawdemod(Cmd+3);
+ } else if(cmdp == 'n' && cmdp2 == 'r'){
+ ans = CmdNRZrawDemod(Cmd+3);
+ } else if(cmdp == 'p' && cmdp2 == '1'){
+ ans = CmdPSK1rawDemod(Cmd+3);
+ } else if(cmdp == 'p' && cmdp2 == '2'){
+ ans = CmdPSK2rawDemod(Cmd+3);
+ } else {
+ PrintAndLog("unknown modulation entered - see help ('h') for parameter structure");
+ }
+ return ans;
+}
+
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);
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;
}
*(string_ptr - 1) = '\0';
PrintAndLog("%s", string_buf);
string_buf[0] = '\0';
+ }
}
- }
return 0;
}
RepaintGraphWindow();
return 0;
}
+typedef struct {
+ uint8_t * buffer;
+ uint32_t numbits;
+ uint32_t position;
+}BitstreamOut;
+
+bool _headBit( BitstreamOut *stream)
+{
+ int bytepos = stream->position >> 3; // divide by 8
+ int bitpos = (stream->position++) & 7; // mask out 00000111
+ return (*(stream->buffer + bytepos) >> (7-bitpos)) & 1;
+}
+
+uint8_t getByte(uint8_t bits_per_sample, BitstreamOut* b)
+{
+ int i;
+ uint8_t val = 0;
+ for(i =0 ; i < bits_per_sample; i++)
+ {
+ val |= (_headBit(b) << (7-i));
+ }
+ return val;
+}
int CmdSamples(const char *Cmd)
{
- uint8_t got[40000] = {0x00};
+ //If we get all but the last byte in bigbuf,
+ // we don't have to worry about remaining trash
+ // in the last byte in case the bits-per-sample
+ // does not line up on byte boundaries
+ uint8_t got[BIGBUF_SIZE-1] = { 0 };
int n = strtol(Cmd, NULL, 0);
if (n == 0)
- n = 20000;
+ n = sizeof(got);
if (n > sizeof(got))
n = sizeof(got);
- PrintAndLog("Reading %d samples from device memory\n", n);
- GetFromBigBuf(got,n,0);
- WaitForResponse(CMD_ACK,NULL);
- for (int j = 0; j < n; j++) {
- GraphBuffer[j] = ((int)got[j]) - 128;
- }
- GraphTraceLen = n;
- RepaintGraphWindow();
- return 0;
+ PrintAndLog("Reading %d bytes from device memory\n", n);
+ GetFromBigBuf(got,n,0);
+ PrintAndLog("Data fetched");
+ UsbCommand response;
+ WaitForResponse(CMD_ACK, &response);
+ uint8_t bits_per_sample = 8;
+
+ //Old devices without this feature would send 0 at arg[0]
+ if(response.arg[0] > 0)
+ {
+ sample_config *sc = (sample_config *) response.d.asBytes;
+ PrintAndLog("Samples @ %d bits/smpl, decimation 1:%d ", sc->bits_per_sample
+ , sc->decimation);
+ bits_per_sample = sc->bits_per_sample;
+ }
+ if(bits_per_sample < 8)
+ {
+ PrintAndLog("Unpacking...");
+ BitstreamOut bout = { got, bits_per_sample * n, 0};
+ int j =0;
+ for (j = 0; j * bits_per_sample < n * 8 && j < sizeof(GraphBuffer); j++) {
+ uint8_t sample = getByte(bits_per_sample, &bout);
+ GraphBuffer[j] = ((int) sample )- 128;
+ }
+ GraphTraceLen = j;
+ PrintAndLog("Unpacked %d samples" , j );
+ }else
+ {
+ for (int j = 0; j < n; j++) {
+ GraphBuffer[j] = ((int)got[j]) - 128;
+ }
+ GraphTraceLen = n;
+ }
+
+ RepaintGraphWindow();
+ return 0;
}
int CmdTuneSamples(const char *Cmd)
PrintAndLog("# LF antenna: %5.2f V @ 134.00 kHz", vLf134/1000.0);
PrintAndLog("# LF optimal: %5.2f V @%9.2f kHz", peakv/1000.0, 12000.0/(peakf+1));
PrintAndLog("# HF antenna: %5.2f V @ 13.56 MHz", vHf/1000.0);
- if (peakv<2000)
+
+#define LF_UNUSABLE_V 2948 // was 2000. Changed due to bugfix in voltage measurements. LF results are now 47% higher.
+#define LF_MARGINAL_V 14739 // was 10000. Changed due to bugfix bug in voltage measurements. LF results are now 47% higher.
+#define HF_UNUSABLE_V 3167 // was 2000. Changed due to bugfix in voltage measurements. HF results are now 58% higher.
+#define HF_MARGINAL_V 7917 // was 5000. Changed due to bugfix in voltage measurements. HF results are now 58% higher.
+
+ if (peakv < LF_UNUSABLE_V)
PrintAndLog("# Your LF antenna is unusable.");
- else if (peakv<10000)
+ else if (peakv < LF_MARGINAL_V)
PrintAndLog("# Your LF antenna is marginal.");
- if (vHf<2000)
+ if (vHf < HF_UNUSABLE_V)
PrintAndLog("# Your HF antenna is unusable.");
- else if (vHf<5000)
+ else if (vHf < HF_MARGINAL_V)
PrintAndLog("# Your HF antenna is marginal.");
- for (int i = 0; i < 256; i++) {
- GraphBuffer[i] = resp.d.asBytes[i] - 128;
+ if (peakv >= LF_UNUSABLE_V) {
+ for (int i = 0; i < 256; i++) {
+ GraphBuffer[i] = resp.d.asBytes[i] - 128;
+ }
+ PrintAndLog("Displaying LF tuning graph. Divisor 89 is 134khz, 95 is 125khz.\n");
+ PrintAndLog("\n");
+ GraphTraceLen = 256;
+ ShowGraphWindow();
}
- PrintAndLog("Done! Divisor 89 is 134khz, 95 is 125khz.\n");
- PrintAndLog("\n");
- GraphTraceLen = 256;
- ShowGraphWindow();
-
- return 0;
+ return 0;
}
}
/* Get our clock */
- clock = GetClock(Cmd, high, 1);
+ clock = GetAskClock(Cmd, high, 1);
int tolerance = clock/4;
int bit, lastbit, wave;
/* Get our clock */
- clock = GetClock(Cmd, 0, 1);
+ clock = GetAskClock(Cmd, 0, 1);
wave = 0;
lastbit = 1;
int CmdDirectionalThreshold(const char *Cmd)
{
- int8_t upThres = param_get8(Cmd, 0);
- int8_t downThres = param_get8(Cmd, 1);
+ int8_t upThres = param_get8(Cmd, 0);
+ int8_t downThres = param_get8(Cmd, 1);
printf("Applying Up Threshold: %d, Down Threshold: %d\n", upThres, downThres);
{
{"help", CmdHelp, 1, "This help"},
{"amp", CmdAmp, 1, "Amplify peaks"},
- {"askdemod", Cmdaskdemod, 1, "<0 or 1> -- Attempt to demodulate simple ASK tags"},
- {"askmandemod", Cmdaskmandemod, 1, "[clock] [invert<0|1>] -- Attempt to demodulate ASK/Manchester tags and output binary (args optional)"},
- {"askrawdemod", Cmdaskrawdemod, 1, "[clock] [invert<0|1>] -- Attempt to demodulate ASK tags and output bin (args optional)"},
+ //{"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] -- Attempt to demodulate ASK/Manchester tags and output binary (args optional)"},
+ //{"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"},
{"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"},
+ //{"bitstream", CmdBitstream, 1, "[clock rate] -- Convert waveform into a bitstream"},
{"buffclear", CmdBuffClear, 1, "Clear sample buffer and graph window"},
{"dec", CmdDec, 1, "Decimate samples"},
- {"detectclock", CmdDetectClockRate, 1, "Detect ASK clock rate"},
- {"fskdemod", CmdFSKdemod, 1, "Demodulate graph window as a HID FSK"},
+ {"detectclock", CmdDetectClockRate, 1, "[modulation] Detect clock rate (options: 'a','f','n','p' for ask, fsk, nrz, psk respectively)"},
+ //{"fskdemod", CmdFSKdemod, 1, "Demodulate graph window as a HID FSK"},
{"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"},
+ //{"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)"},
+ //{"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"},
{"ltrim", CmdLtrim, 1, "<samples> -- Trim samples from left of trace"},
{"rtrim", CmdRtrim, 1, "<location to end trace> -- Trim samples from right of trace"},
- {"mandemod", CmdManchesterDemod, 1, "[i] [clock rate] -- Manchester demodulate binary stream (option 'i' to invert output)"},
+ //{"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"},
+ //{"nrzdetectclock",CmdDetectNRZClockRate, 1, "Detect ASK, PSK, or NRZ clock rate"},
+ //{"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)"},
- {"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)"},
+ //{"pskdetectclock",CmdDetectPSKClockRate, 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)"},
+ //{"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)"},
+ {"rawdemod", CmdRawDemod, 1, "[modulation] ... <options> -see help (h option) - Attempt to demodulate the data in the GraphBuffer and output binary"},
{"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"},
- {"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"},
+ //{"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"},
+ {"undec", CmdUndec, 1, "Un-decimate samples by 2"},
{"zerocrossings", CmdZerocrossings, 1, "Count time between zero-crossings"},
{NULL, NULL, 0, NULL}
};
projects / proxmark3-svn / blobdiff