1 //-----------------------------------------------------------------------------
2 // Copyright (C) 2010 iZsh <izsh at fail0verflow.com>
4 // This code is licensed to you under the terms of the GNU GPL, version 2 or,
5 // at your option, any later version. See the LICENSE.txt file for the text of
7 //-----------------------------------------------------------------------------
8 // Data and Graph commands
9 //-----------------------------------------------------------------------------
15 #include "proxmark3.h"
19 #include "cmdparser.h"
26 uint8_t DemodBuffer
[MAX_DEMOD_BUF_LEN
];
29 static int CmdHelp(const char *Cmd
);
31 //set the demod buffer with given array of binary (one bit per byte)
33 void setDemodBuf(uint8_t *buff
, size_t size
, size_t startIdx
)
36 for (; i
< size
; i
++){
37 DemodBuffer
[i
]=buff
[startIdx
++];
43 int CmdSetDebugMode(const char *Cmd
)
46 sscanf(Cmd
, "%i", &demod
);
47 g_debugMode
=(uint8_t)demod
;
55 int bitLen
= DemodBufferLen
;
57 PrintAndLog("no bits found in demod buffer");
60 if (bitLen
>512) bitLen
=512; //max output to 512 bits if we have more - should be plenty
62 // ensure equally divided by 16
65 for (i
= 0; i
<= (bitLen
-16); i
+=16) {
66 PrintAndLog("%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i",
88 int CmdAmp(const char *Cmd
)
90 int i
, rising
, falling
;
91 int max
= INT_MIN
, min
= INT_MAX
;
93 for (i
= 10; i
< GraphTraceLen
; ++i
) {
94 if (GraphBuffer
[i
] > max
)
96 if (GraphBuffer
[i
] < min
)
102 for (i
= 0; i
< GraphTraceLen
; ++i
) {
103 if (GraphBuffer
[i
+ 1] < GraphBuffer
[i
]) {
105 GraphBuffer
[i
] = max
;
110 if (GraphBuffer
[i
+ 1] > GraphBuffer
[i
]) {
112 GraphBuffer
[i
] = min
;
119 RepaintGraphWindow();
124 * Generic command to demodulate ASK.
126 * Argument is convention: positive or negative (High mod means zero
127 * or high mod means one)
129 * Updates the Graph trace with 0/1 values
134 //this method is dependant on all highs and lows to be the same(or clipped) this creates issues[marshmellow] it also ignores the clock
135 int Cmdaskdemod(const char *Cmd
)
138 int c
, high
= 0, low
= 0;
140 // TODO: complain if we do not give 2 arguments here !
141 // (AL - this doesn't make sense! we're only using one argument!!!)
142 sscanf(Cmd
, "%i", &c
);
144 /* Detect high and lows and clock */
146 for (i
= 0; i
< GraphTraceLen
; ++i
)
148 if (GraphBuffer
[i
] > high
)
149 high
= GraphBuffer
[i
];
150 else if (GraphBuffer
[i
] < low
)
151 low
= GraphBuffer
[i
];
155 if (c
!= 0 && c
!= 1) {
156 PrintAndLog("Invalid argument: %s", Cmd
);
160 if (GraphBuffer
[0] > 0) {
161 GraphBuffer
[0] = 1-c
;
165 for (i
= 1; i
< GraphTraceLen
; ++i
) {
166 /* Transitions are detected at each peak
167 * Transitions are either:
168 * - we're low: transition if we hit a high
169 * - we're high: transition if we hit a low
170 * (we need to do it this way because some tags keep high or
171 * low for long periods, others just reach the peak and go
174 //[marhsmellow] change == to >= for high and <= for low for fuzz
175 if ((GraphBuffer
[i
] == high
) && (GraphBuffer
[i
- 1] == c
)) {
176 GraphBuffer
[i
] = 1 - c
;
177 } else if ((GraphBuffer
[i
] == low
) && (GraphBuffer
[i
- 1] == (1 - c
))){
181 GraphBuffer
[i
] = GraphBuffer
[i
- 1];
184 RepaintGraphWindow();
189 void printBitStream(uint8_t BitStream
[], uint32_t bitLen
)
193 PrintAndLog("Too few bits found: %d",bitLen
);
196 if (bitLen
>512) bitLen
=512;
198 // ensure equally divided by 16
202 for (i
= 0; i
<= (bitLen
-16); i
+=16) {
203 PrintAndLog("%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i",
224 //print EM410x ID in multiple formats
225 void printEM410x(uint64_t id
)
232 for (ii
=5; ii
>0;ii
--){
234 id2lo
=(id2lo
<<1LL) | ((id
& (iii
<< (i
+((ii
-1)*8)))) >> (i
+((ii
-1)*8)));
238 PrintAndLog("EM TAG ID : %010llx", id
);
239 PrintAndLog("Unique TAG ID: %010llx", id2lo
);
240 PrintAndLog("DEZ 8 : %08lld",id
& 0xFFFFFF);
241 PrintAndLog("DEZ 10 : %010lld",id
& 0xFFFFFF);
242 PrintAndLog("DEZ 5.5 : %05lld.%05lld",(id
>>16LL) & 0xFFFF,(id
& 0xFFFF));
243 PrintAndLog("DEZ 3.5A : %03lld.%05lld",(id
>>32ll),(id
& 0xFFFF));
244 PrintAndLog("DEZ 14/IK2 : %014lld",id
);
245 PrintAndLog("DEZ 15/IK3 : %015lld",id2lo
);
246 PrintAndLog("Other : %05lld_%03lld_%08lld",(id
&0xFFFF),((id
>>16LL) & 0xFF),(id
& 0xFFFFFF));
252 //takes 3 arguments - clock, invert and maxErr as integers
253 //attempts to demodulate ask while decoding manchester
254 //prints binary found and saves in graphbuffer for further commands
255 int CmdAskEM410xDemod(const char *Cmd
)
260 char cmdp
= param_getchar(Cmd
, 0);
261 if (strlen(Cmd
) > 10 || cmdp
== 'h' || cmdp
== 'H') {
262 PrintAndLog("Usage: data askem410xdemod [clock] <0|1> [maxError]");
263 PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
264 PrintAndLog(" <invert>, 1 for invert output");
265 PrintAndLog(" [set maximum allowed errors], default = 100.");
267 PrintAndLog(" sample: data askem410xdemod = demod an EM410x Tag ID from GraphBuffer");
268 PrintAndLog(" : data askem410xdemod 32 = demod an EM410x Tag ID from GraphBuffer using a clock of RF/32");
269 PrintAndLog(" : data askem410xdemod 32 1 = demod an EM410x Tag ID from GraphBuffer using a clock of RF/32 and inverting data");
270 PrintAndLog(" : data askem410xdemod 1 = demod an EM410x Tag ID from GraphBuffer while inverting data");
271 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");
277 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
278 sscanf(Cmd
, "%i %i %i", &clk
, &invert
, &maxErr
);
279 if (invert
!= 0 && invert
!= 1) {
280 PrintAndLog("Invalid argument: %s", Cmd
);
283 size_t BitLen
= getFromGraphBuf(BitStream
);
285 if (g_debugMode
==1) PrintAndLog("DEBUG: Bitlen from grphbuff: %d",BitLen
);
286 if (BitLen
==0) return 0;
288 errCnt
= askmandemod(BitStream
, &BitLen
, &clk
, &invert
, maxErr
);
289 if (errCnt
<0||BitLen
<16){ //if fatal error (or -1)
290 if (g_debugMode
==1) PrintAndLog("no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt
,invert
,BitLen
,clk
);
293 PrintAndLog("\nUsing Clock: %d - Invert: %d - Bits Found: %d",clk
,invert
,BitLen
);
297 PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt
);
299 //PrintAndLog("ASK/Manchester decoded bitstream:");
300 // Now output the bitstream to the scrollback by line of 16 bits
301 setDemodBuf(BitStream
,BitLen
,0);
305 lo
= Em410xDecode(BitStream
, &BitLen
, &idx
);
307 //set GraphBuffer for clone or sim command
308 setDemodBuf(BitStream
, BitLen
, idx
);
310 PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx
, BitLen
);
313 PrintAndLog("EM410x pattern found: ");
321 //takes 3 arguments - clock, invert, maxErr as integers
322 //attempts to demodulate ask while decoding manchester
323 //prints binary found and saves in graphbuffer for further commands
324 int Cmdaskmandemod(const char *Cmd
)
329 char cmdp
= param_getchar(Cmd
, 0);
330 if (strlen(Cmd
) > 10 || cmdp
== 'h' || cmdp
== 'H') {
331 PrintAndLog("Usage: data askmandemod [clock] <0|1> [maxError]");
332 PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
333 PrintAndLog(" <invert>, 1 for invert output");
334 PrintAndLog(" [set maximum allowed errors], default = 100.");
336 PrintAndLog(" sample: data askmandemod = demod an ask/manchester tag from GraphBuffer");
337 PrintAndLog(" : data askmandemod 32 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32");
338 PrintAndLog(" : data askmandemod 32 1 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32 and inverting data");
339 PrintAndLog(" : data askmandemod 1 = demod an ask/manchester tag from GraphBuffer while inverting data");
340 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");
344 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
345 sscanf(Cmd
, "%i %i %i", &clk
, &invert
, &maxErr
);
346 if (invert
!= 0 && invert
!= 1) {
347 PrintAndLog("Invalid argument: %s", Cmd
);
354 size_t BitLen
= getFromGraphBuf(BitStream
);
355 if (g_debugMode
==1) PrintAndLog("DEBUG: Bitlen from grphbuff: %d",BitLen
);
356 if (BitLen
==0) return 0;
358 errCnt
= askmandemod(BitStream
, &BitLen
, &clk
, &invert
, maxErr
);
359 if (errCnt
<0||BitLen
<16){ //if fatal error (or -1)
360 if (g_debugMode
==1) PrintAndLog("no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt
,invert
,BitLen
,clk
);
363 PrintAndLog("\nUsing Clock: %d - Invert: %d - Bits Found: %d",clk
,invert
,BitLen
);
367 PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt
);
369 PrintAndLog("ASK/Manchester decoded bitstream:");
370 // Now output the bitstream to the scrollback by line of 16 bits
371 setDemodBuf(BitStream
,BitLen
,0);
375 lo
= Em410xDecode(BitStream
, &BitLen
, &idx
);
377 //set GraphBuffer for clone or sim command
378 setDemodBuf(BitStream
, BitLen
, idx
);
380 PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx
, BitLen
);
383 PrintAndLog("EM410x pattern found: ");
392 //stricktly take 10 and 01 and convert to 0 and 1
393 int Cmdmandecoderaw(const char *Cmd
)
399 char cmdp
= param_getchar(Cmd
, 0);
400 if (strlen(Cmd
) > 1 || cmdp
== 'h' || cmdp
== 'H') {
401 PrintAndLog("Usage: data manrawdecode");
402 PrintAndLog(" Takes 10 and 01 and converts to 0 and 1 respectively");
403 PrintAndLog(" --must have binary sequence in demodbuffer (run data askrawdemod first)");
405 PrintAndLog(" sample: data manrawdecode = decode manchester bitstream from the demodbuffer");
408 if (DemodBufferLen
==0) return 0;
409 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
411 for (;i
<DemodBufferLen
;++i
){
412 if (DemodBuffer
[i
]>high
) high
=DemodBuffer
[i
];
413 else if(DemodBuffer
[i
]<low
) low
=DemodBuffer
[i
];
414 BitStream
[i
]=DemodBuffer
[i
];
416 if (high
>1 || low
<0 ){
417 PrintAndLog("Error: please raw demod the wave first then mancheseter raw decode");
421 errCnt
=manrawdecode(BitStream
, &size
);
423 PrintAndLog("Too many errors: %d",errCnt
);
426 PrintAndLog("Manchester Decoded - # errors:%d - data:",errCnt
);
427 printBitStream(BitStream
, size
);
431 id
= Em410xDecode(BitStream
, &size
, &idx
);
433 //need to adjust to set bitstream back to manchester encoded data
434 //setDemodBuf(BitStream, size, idx);
444 //take 01 or 10 = 0 and 11 or 00 = 1
445 //takes 2 arguments "offset" default = 0 if 1 it will shift the decode by one bit
446 // and "invert" default = 0 if 1 it will invert output
447 // since it is not like manchester and doesn't have an incorrect bit pattern we
448 // cannot determine if our decode is correct or if it should be shifted by one bit
449 // the argument offset allows us to manually shift if the output is incorrect
450 // (better would be to demod and decode at the same time so we can distinguish large
451 // width waves vs small width waves to help the decode positioning) or askbiphdemod
452 int CmdBiphaseDecodeRaw(const char *Cmd
)
460 char cmdp
= param_getchar(Cmd
, 0);
461 if (strlen(Cmd
) > 3 || cmdp
== 'h' || cmdp
== 'H') {
462 PrintAndLog("Usage: data biphaserawdecode [offset] <invert>");
463 PrintAndLog(" Converts 10 or 01 to 0 and 11 or 00 to 1");
464 PrintAndLog(" --must have binary sequence in demodbuffer (run data askrawdemod first)");
466 PrintAndLog(" [offset <0|1>], set to 0 not to adjust start position or to 1 to adjust decode start position");
467 PrintAndLog(" [invert <0|1>], set to 1 to invert output");
469 PrintAndLog(" sample: data biphaserawdecode = decode biphase bitstream from the demodbuffer");
470 PrintAndLog(" sample: data biphaserawdecode 1 1 = decode biphase bitstream from the demodbuffer, set offset, and invert output");
473 sscanf(Cmd
, "%i %i", &offset
, &invert
);
474 if (DemodBufferLen
==0) return 0;
475 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
476 //get graphbuffer & high and low
477 for (;i
<DemodBufferLen
;++i
){
478 if(DemodBuffer
[i
]>high
)high
=DemodBuffer
[i
];
479 else if(DemodBuffer
[i
]<low
)low
=DemodBuffer
[i
];
480 BitStream
[i
]=DemodBuffer
[i
];
482 if (high
>1 || low
<0){
483 PrintAndLog("Error: please raw demod the wave first then decode");
487 errCnt
=BiphaseRawDecode(BitStream
, &size
, offset
, invert
);
489 PrintAndLog("Too many errors attempting to decode: %d",errCnt
);
492 PrintAndLog("Biphase Decoded using offset: %d - # errors:%d - data:",offset
,errCnt
);
493 printBitStream(BitStream
, size
);
494 PrintAndLog("\nif bitstream does not look right try offset=1");
499 //takes 4 arguments - clock, invert, maxErr as integers and amplify as char
500 //attempts to demodulate ask only
501 //prints binary found and saves in graphbuffer for further commands
502 int Cmdaskrawdemod(const char *Cmd
)
508 char amp
= param_getchar(Cmd
, 0);
509 char cmdp
= param_getchar(Cmd
, 0);
510 if (strlen(Cmd
) > 12 || cmdp
== 'h' || cmdp
== 'H') {
511 PrintAndLog("Usage: data askrawdemod [clock] <invert> [maxError] [amplify]");
512 PrintAndLog(" [set clock as integer] optional, if not set, autodetect");
513 PrintAndLog(" <invert>, 1 to invert output");
514 PrintAndLog(" [set maximum allowed errors], default = 100");
515 PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp");
517 PrintAndLog(" sample: data askrawdemod = demod an ask tag from GraphBuffer");
518 PrintAndLog(" : data askrawdemod a = demod an ask tag from GraphBuffer, amplified");
519 PrintAndLog(" : data askrawdemod 32 = demod an ask tag from GraphBuffer using a clock of RF/32");
520 PrintAndLog(" : data askrawdemod 32 1 = demod an ask tag from GraphBuffer using a clock of RF/32 and inverting data");
521 PrintAndLog(" : data askrawdemod 1 = demod an ask tag from GraphBuffer while inverting data");
522 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");
523 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");
526 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
527 sscanf(Cmd
, "%i %i %i %c", &clk
, &invert
, &maxErr
, &
);
528 if (invert
!= 0 && invert
!= 1) {
529 PrintAndLog("Invalid argument: %s", Cmd
);
536 if (amp
== 'a' || amp
== 'A') askAmp
=1;
537 size_t BitLen
= getFromGraphBuf(BitStream
);
538 if (BitLen
==0) return 0;
540 errCnt
= askrawdemod(BitStream
, &BitLen
, &clk
, &invert
, maxErr
, askAmp
);
541 if (errCnt
==-1||BitLen
<16){ //throw away static - allow 1 and -1 (in case of threshold command first)
542 PrintAndLog("no data found");
543 if (g_debugMode
==1) PrintAndLog("errCnt: %d, BitLen: %d, clk: %d, invert: %d", errCnt
, BitLen
, clk
, invert
);
546 PrintAndLog("Using Clock: %d - invert: %d - Bits Found: %d", clk
, invert
, BitLen
);
548 //move BitStream back to DemodBuffer
549 setDemodBuf(BitStream
,BitLen
,0);
553 PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d", errCnt
);
555 PrintAndLog("ASK demoded bitstream:");
556 // Now output the bitstream to the scrollback by line of 16 bits
557 printBitStream(BitStream
,BitLen
);
562 int CmdAutoCorr(const char *Cmd
)
564 static int CorrelBuffer
[MAX_GRAPH_TRACE_LEN
];
566 int window
= atoi(Cmd
);
569 PrintAndLog("needs a window");
572 if (window
>= GraphTraceLen
) {
573 PrintAndLog("window must be smaller than trace (%d samples)",
578 PrintAndLog("performing %d correlations", GraphTraceLen
- window
);
580 for (int i
= 0; i
< GraphTraceLen
- window
; ++i
) {
582 for (int j
= 0; j
< window
; ++j
) {
583 sum
+= (GraphBuffer
[j
]*GraphBuffer
[i
+ j
]) / 256;
585 CorrelBuffer
[i
] = sum
;
587 GraphTraceLen
= GraphTraceLen
- window
;
588 memcpy(GraphBuffer
, CorrelBuffer
, GraphTraceLen
* sizeof (int));
590 RepaintGraphWindow();
594 int CmdBitsamples(const char *Cmd
)
599 GetFromBigBuf(got
,sizeof(got
),0);
600 WaitForResponse(CMD_ACK
,NULL
);
602 for (int j
= 0; j
< sizeof(got
); j
++) {
603 for (int k
= 0; k
< 8; k
++) {
604 if(got
[j
] & (1 << (7 - k
))) {
605 GraphBuffer
[cnt
++] = 1;
607 GraphBuffer
[cnt
++] = 0;
612 RepaintGraphWindow();
617 * Convert to a bitstream
619 int CmdBitstream(const char *Cmd
)
627 int hithigh
, hitlow
, first
;
629 /* Detect high and lows and clock */
630 for (i
= 0; i
< GraphTraceLen
; ++i
)
632 if (GraphBuffer
[i
] > high
)
633 high
= GraphBuffer
[i
];
634 else if (GraphBuffer
[i
] < low
)
635 low
= GraphBuffer
[i
];
639 clock
= GetClock(Cmd
, high
, 1);
643 for (i
= 0; i
< (int)(gtl
/ clock
); ++i
)
648 /* Find out if we hit both high and low peaks */
649 for (j
= 0; j
< clock
; ++j
)
651 if (GraphBuffer
[(i
* clock
) + j
] == high
)
653 else if (GraphBuffer
[(i
* clock
) + j
] == low
)
655 /* it doesn't count if it's the first part of our read
656 because it's really just trailing from the last sequence */
657 if (first
&& (hithigh
|| hitlow
))
658 hithigh
= hitlow
= 0;
662 if (hithigh
&& hitlow
)
666 /* If we didn't hit both high and low peaks, we had a bit transition */
667 if (!hithigh
|| !hitlow
)
670 AppendGraph(0, clock
, bit
);
673 RepaintGraphWindow();
677 int CmdBuffClear(const char *Cmd
)
679 UsbCommand c
= {CMD_BUFF_CLEAR
};
685 int CmdDec(const char *Cmd
)
687 for (int i
= 0; i
< (GraphTraceLen
/ 2); ++i
)
688 GraphBuffer
[i
] = GraphBuffer
[i
* 2];
690 PrintAndLog("decimated by 2");
691 RepaintGraphWindow();
695 * Undecimate - I'd call it 'interpolate', but we'll save that
696 * name until someone does an actual interpolation command, not just
697 * blindly repeating samples
701 int CmdUndec(const char *Cmd
)
703 if(param_getchar(Cmd
, 0) == 'h')
705 PrintAndLog("Usage: data undec [factor]");
706 PrintAndLog("This function performs un-decimation, by repeating each sample N times");
707 PrintAndLog("Options: ");
708 PrintAndLog(" h This help");
709 PrintAndLog(" factor The number of times to repeat each sample.[default:2]");
710 PrintAndLog("Example: 'data undec 3'");
714 uint8_t factor
= param_get8ex(Cmd
, 0,2, 10);
715 //We have memory, don't we?
716 int swap
[MAX_GRAPH_TRACE_LEN
] = { 0 };
717 uint32_t g_index
= 0 ,s_index
= 0;
718 while(g_index
< GraphTraceLen
&& s_index
< MAX_GRAPH_TRACE_LEN
)
721 for(count
= 0; count
< factor
&& s_index
+count
< MAX_GRAPH_TRACE_LEN
; count
++)
722 swap
[s_index
+count
] = GraphBuffer
[g_index
];
726 memcpy(GraphBuffer
,swap
, s_index
* sizeof(int));
727 GraphTraceLen
= s_index
;
728 RepaintGraphWindow();
733 //shift graph zero up or down based on input + or -
734 int CmdGraphShiftZero(const char *Cmd
)
738 //set options from parameters entered with the command
739 sscanf(Cmd
, "%i", &shift
);
741 for(int i
= 0; i
<GraphTraceLen
; i
++){
742 shiftedVal
=GraphBuffer
[i
]+shift
;
745 else if (shiftedVal
<-127)
747 GraphBuffer
[i
]= shiftedVal
;
754 //use large jumps in read samples to identify edges of waves and then amplify that wave to max
755 //similar to dirtheshold, threshold, and askdemod commands
756 //takes a threshold length which is the measured length between two samples then determines an edge
757 int CmdAskEdgeDetect(const char *Cmd
)
760 sscanf(Cmd
, "%i", &thresLen
);
763 for(int i
= 1; i
<GraphTraceLen
; i
++){
764 if (GraphBuffer
[i
]-GraphBuffer
[i
-1]>=thresLen
) //large jump up
766 else if(GraphBuffer
[i
]-GraphBuffer
[i
-1]<=-1*thresLen
) //large jump down
769 shiftedVal
=GraphBuffer
[i
]+shift
;
773 else if (shiftedVal
<-127)
775 GraphBuffer
[i
-1] = shiftedVal
;
777 RepaintGraphWindow();
782 /* Print our clock rate */
783 // uses data from graphbuffer
784 int CmdDetectClockRate(const char *Cmd
)
786 int ans
= GetClock("",0,0);
791 //fsk raw demod and print binary
792 //takes 4 arguments - Clock, invert, fchigh, fclow
793 //defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a))
794 int CmdFSKrawdemod(const char *Cmd
)
796 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
802 char cmdp
= param_getchar(Cmd
, 0);
803 if (strlen(Cmd
) > 10 || cmdp
== 'h' || cmdp
== 'H') {
804 PrintAndLog("Usage: data fskrawdemod [clock] <invert> [fchigh] [fclow]");
805 PrintAndLog(" [set clock as integer] optional, omit for autodetect.");
806 PrintAndLog(" <invert>, 1 for invert output, can be used even if the clock is omitted");
807 PrintAndLog(" [fchigh], larger field clock length, omit for autodetect");
808 PrintAndLog(" [fclow], small field clock length, omit for autodetect");
810 PrintAndLog(" sample: data fskrawdemod = demod an fsk tag from GraphBuffer using autodetect");
811 PrintAndLog(" : data fskrawdemod 32 = demod an fsk tag from GraphBuffer using a clock of RF/32, autodetect fc");
812 PrintAndLog(" : data fskrawdemod 1 = demod an fsk tag from GraphBuffer using autodetect, invert output");
813 PrintAndLog(" : data fskrawdemod 32 1 = demod an fsk tag from GraphBuffer using a clock of RF/32, invert output, autodetect fc");
814 PrintAndLog(" : data fskrawdemod 64 0 8 5 = demod an fsk1 RF/64 tag from GraphBuffer");
815 PrintAndLog(" : data fskrawdemod 50 0 10 8 = demod an fsk2 RF/50 tag from GraphBuffer");
816 PrintAndLog(" : data fskrawdemod 50 1 10 8 = demod an fsk2a RF/50 tag from GraphBuffer");
819 //set options from parameters entered with the command
820 sscanf(Cmd
, "%i %i %i %i", &rfLen
, &invert
, &fchigh
, &fclow
);
822 if (strlen(Cmd
)>0 && strlen(Cmd
)<=2) {
824 invert
=1; //if invert option only is used
829 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
830 size_t BitLen
= getFromGraphBuf(BitStream
);
831 if (BitLen
==0) return 0;
832 //get field clock lengths
835 if (fchigh
==0 || fclow
== 0){
836 fcs
=countFC(BitStream
, BitLen
, &dummy
);
841 fchigh
= (fcs
>> 8) & 0xFF;
845 //get bit clock length
847 rfLen
= detectFSKClk(BitStream
, BitLen
, fchigh
, fclow
);
848 if (rfLen
== 0) rfLen
= 50;
850 PrintAndLog("Args invert: %d - Clock:%d - fchigh:%d - fclow: %d",invert
,rfLen
,fchigh
, fclow
);
851 int size
= fskdemod(BitStream
,BitLen
,(uint8_t)rfLen
,(uint8_t)invert
,(uint8_t)fchigh
,(uint8_t)fclow
);
853 PrintAndLog("FSK decoded bitstream:");
854 setDemodBuf(BitStream
,size
,0);
856 // Now output the bitstream to the scrollback by line of 16 bits
857 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
858 printBitStream(BitStream
,size
);
861 PrintAndLog("no FSK data found");
866 //by marshmellow (based on existing demod + holiman's refactor)
867 //HID Prox demod - FSK RF/50 with preamble of 00011101 (then manchester encoded)
868 //print full HID Prox ID and some bit format details if found
869 int CmdFSKdemodHID(const char *Cmd
)
871 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
872 uint32_t hi2
=0, hi
=0, lo
=0;
874 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
875 size_t BitLen
= getFromGraphBuf(BitStream
);
876 if (BitLen
==0) return 0;
877 //get binary from fsk wave
878 int idx
= HIDdemodFSK(BitStream
,&BitLen
,&hi2
,&hi
,&lo
);
882 PrintAndLog("DEBUG: Just Noise Detected");
883 } else if (idx
== -2) {
884 PrintAndLog("DEBUG: Error demoding fsk");
885 } else if (idx
== -3) {
886 PrintAndLog("DEBUG: Preamble not found");
887 } else if (idx
== -4) {
888 PrintAndLog("DEBUG: Error in Manchester data, SIZE: %d", BitLen
);
890 PrintAndLog("DEBUG: Error demoding fsk %d", idx
);
895 if (hi2
==0 && hi
==0 && lo
==0) {
896 if (g_debugMode
) PrintAndLog("DEBUG: Error - no values found");
899 if (hi2
!= 0){ //extra large HID tags
900 PrintAndLog("HID Prox TAG ID: %x%08x%08x (%d)",
901 (unsigned int) hi2
, (unsigned int) hi
, (unsigned int) lo
, (unsigned int) (lo
>>1) & 0xFFFF);
903 else { //standard HID tags <38 bits
906 uint32_t cardnum
= 0;
907 if (((hi
>>5)&1)==1){//if bit 38 is set then < 37 bit format is used
909 lo2
=(((hi
& 31) << 12) | (lo
>>20)); //get bits 21-37 to check for format len bit
911 while(lo2
>1){ //find last bit set to 1 (format len bit)
919 cardnum
= (lo
>>1)&0xFFFF;
923 cardnum
= (lo
>>1)&0xFFFF;
924 fc
= ((hi
&1)<<15)|(lo
>>17);
927 cardnum
= (lo
>>1)&0xFFFFF;
928 fc
= ((hi
&1)<<11)|(lo
>>21);
931 else { //if bit 38 is not set then 37 bit format is used
936 cardnum
= (lo
>>1)&0x7FFFF;
937 fc
= ((hi
&0xF)<<12)|(lo
>>20);
940 PrintAndLog("HID Prox TAG ID: %x%08x (%d) - Format Len: %dbit - FC: %d - Card: %d",
941 (unsigned int) hi
, (unsigned int) lo
, (unsigned int) (lo
>>1) & 0xFFFF,
942 (unsigned int) fmtLen
, (unsigned int) fc
, (unsigned int) cardnum
);
944 setDemodBuf(BitStream
,BitLen
,idx
);
946 PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx
, BitLen
);
953 //Paradox Prox demod - FSK RF/50 with preamble of 00001111 (then manchester encoded)
954 //print full Paradox Prox ID and some bit format details if found
955 int CmdFSKdemodParadox(const char *Cmd
)
957 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
958 uint32_t hi2
=0, hi
=0, lo
=0;
960 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
961 size_t BitLen
= getFromGraphBuf(BitStream
);
962 if (BitLen
==0) return 0;
963 //get binary from fsk wave
964 int idx
= ParadoxdemodFSK(BitStream
,&BitLen
,&hi2
,&hi
,&lo
);
968 PrintAndLog("DEBUG: Just Noise Detected");
969 } else if (idx
== -2) {
970 PrintAndLog("DEBUG: Error demoding fsk");
971 } else if (idx
== -3) {
972 PrintAndLog("DEBUG: Preamble not found");
973 } else if (idx
== -4) {
974 PrintAndLog("DEBUG: Error in Manchester data");
976 PrintAndLog("DEBUG: Error demoding fsk %d", idx
);
981 if (hi2
==0 && hi
==0 && lo
==0){
982 if (g_debugMode
) PrintAndLog("DEBUG: Error - no value found");
985 uint32_t fc
= ((hi
& 0x3)<<6) | (lo
>>26);
986 uint32_t cardnum
= (lo
>>10)&0xFFFF;
988 PrintAndLog("Paradox TAG ID: %x%08x - FC: %d - Card: %d - Checksum: %02x",
989 hi
>>10, (hi
& 0x3)<<26 | (lo
>>10), fc
, cardnum
, (lo
>>2) & 0xFF );
990 setDemodBuf(BitStream
,BitLen
,idx
);
992 PrintAndLog("DEBUG: idx: %d, len: %d, Printing Demod Buffer:", idx
, BitLen
);
1000 //IO-Prox demod - FSK RF/64 with preamble of 000000001
1001 //print ioprox ID and some format details
1002 int CmdFSKdemodIO(const char *Cmd
)
1004 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1007 //something in graphbuffer?
1008 if (GraphTraceLen
< 65) {
1009 if (g_debugMode
)PrintAndLog("DEBUG: not enough samples in GraphBuffer");
1012 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
1013 size_t BitLen
= getFromGraphBuf(BitStream
);
1014 if (BitLen
==0) return 0;
1016 //get binary from fsk wave
1017 idx
= IOdemodFSK(BitStream
,BitLen
);
1021 PrintAndLog("DEBUG: Just Noise Detected");
1022 } else if (idx
== -2) {
1023 PrintAndLog("DEBUG: not enough samples");
1024 } else if (idx
== -3) {
1025 PrintAndLog("DEBUG: error during fskdemod");
1026 } else if (idx
== -4) {
1027 PrintAndLog("DEBUG: Preamble not found");
1028 } else if (idx
== -5) {
1029 PrintAndLog("DEBUG: Separator bits not found");
1031 PrintAndLog("DEBUG: Error demoding fsk %d", idx
);
1037 if (g_debugMode
==1){
1038 PrintAndLog("DEBUG: IO Prox Data not found - FSK Bits: %d",BitLen
);
1039 if (BitLen
> 92) printBitStream(BitStream
,92);
1044 //0 10 20 30 40 50 60
1046 //01234567 8 90123456 7 89012345 6 78901234 5 67890123 4 56789012 3 45678901 23
1047 //-----------------------------------------------------------------------------
1048 //00000000 0 11110000 1 facility 1 version* 1 code*one 1 code*two 1 ???????? 11
1050 //XSF(version)facility:codeone+codetwo (raw)
1052 if (idx
+64>BitLen
) {
1053 if (g_debugMode
==1) PrintAndLog("not enough bits found - bitlen: %d",BitLen
);
1056 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]);
1057 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]);
1058 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]);
1059 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]);
1060 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]);
1061 PrintAndLog("%d%d%d%d%d%d%d%d %d code2",BitStream
[idx
+45], BitStream
[idx
+46], BitStream
[idx
+47],BitStream
[idx
+48],BitStream
[idx
+49],BitStream
[idx
+50],BitStream
[idx
+51],BitStream
[idx
+52],BitStream
[idx
+53]);
1062 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]);
1064 uint32_t code
= bytebits_to_byte(BitStream
+idx
,32);
1065 uint32_t code2
= bytebits_to_byte(BitStream
+idx
+32,32);
1066 uint8_t version
= bytebits_to_byte(BitStream
+idx
+27,8); //14,4
1067 uint8_t facilitycode
= bytebits_to_byte(BitStream
+idx
+18,8) ;
1068 uint16_t number
= (bytebits_to_byte(BitStream
+idx
+36,8)<<8)|(bytebits_to_byte(BitStream
+idx
+45,8)); //36,9
1069 PrintAndLog("IO Prox XSF(%02d)%02x:%05d (%08x%08x)",version
,facilitycode
,number
,code
,code2
);
1070 setDemodBuf(BitStream
,64,idx
);
1072 PrintAndLog("DEBUG: idx: %d, Len: %d, Printing demod buffer:",idx
,64);
1080 //AWID Prox demod - FSK RF/50 with preamble of 00000001 (always a 96 bit data stream)
1081 //print full AWID Prox ID and some bit format details if found
1082 int CmdFSKdemodAWID(const char *Cmd
)
1086 //sscanf(Cmd, "%i", &verbose);
1088 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1089 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
1090 size_t size
= getFromGraphBuf(BitStream
);
1091 if (size
==0) return 0;
1093 //get binary from fsk wave
1094 int idx
= AWIDdemodFSK(BitStream
, &size
);
1096 if (g_debugMode
==1){
1098 PrintAndLog("DEBUG: Error - not enough samples");
1100 PrintAndLog("DEBUG: Error - only noise found");
1102 PrintAndLog("DEBUG: Error - problem during FSK demod");
1103 // else if (idx == -3)
1104 // PrintAndLog("Error: thought we had a tag but the parity failed");
1106 PrintAndLog("DEBUG: Error - AWID preamble not found");
1108 PrintAndLog("DEBUG: Error - Size not correct: %d", size
);
1110 PrintAndLog("DEBUG: Error %d",idx
);
1116 // 0 10 20 30 40 50 60
1118 // 01234567 890 1 234 5 678 9 012 3 456 7 890 1 234 5 678 9 012 3 456 7 890 1 234 5 678 9 012 3 - to 96
1119 // -----------------------------------------------------------------------------
1120 // 00000001 000 1 110 1 101 1 011 1 101 1 010 0 000 1 000 1 010 0 001 0 110 1 100 0 000 1 000 1
1121 // premable bbb o bbb o bbw o fff o fff o ffc o ccc o ccc o ccc o ccc o ccc o wxx o xxx o xxx o - to 96
1122 // |---26 bit---| |-----117----||-------------142-------------|
1123 // b = format bit len, o = odd parity of last 3 bits
1124 // f = facility code, c = card number
1125 // w = wiegand parity
1126 // (26 bit format shown)
1128 //get raw ID before removing parities
1129 uint32_t rawLo
= bytebits_to_byte(BitStream
+idx
+64,32);
1130 uint32_t rawHi
= bytebits_to_byte(BitStream
+idx
+32,32);
1131 uint32_t rawHi2
= bytebits_to_byte(BitStream
+idx
,32);
1132 setDemodBuf(BitStream
,96,idx
);
1134 size
= removeParity(BitStream
, idx
+8, 4, 1, 88);
1136 if (g_debugMode
==1) PrintAndLog("DEBUG: Error - at parity check-tag size does not match AWID format");
1139 // ok valid card found!
1142 // 0 10 20 30 40 50 60
1144 // 01234567 8 90123456 7890123456789012 3 456789012345678901234567890123456
1145 // -----------------------------------------------------------------------------
1146 // 00011010 1 01110101 0000000010001110 1 000000000000000000000000000000000
1147 // bbbbbbbb w ffffffff cccccccccccccccc w xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
1148 // |26 bit| |-117--| |-----142------|
1149 // b = format bit len, o = odd parity of last 3 bits
1150 // f = facility code, c = card number
1151 // w = wiegand parity
1152 // (26 bit format shown)
1155 uint32_t cardnum
= 0;
1158 uint8_t fmtLen
= bytebits_to_byte(BitStream
,8);
1160 fc
= bytebits_to_byte(BitStream
+9, 8);
1161 cardnum
= bytebits_to_byte(BitStream
+17, 16);
1162 code1
= bytebits_to_byte(BitStream
+8,fmtLen
);
1163 PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %x%08x%08x", fmtLen
, fc
, cardnum
, code1
, rawHi2
, rawHi
, rawLo
);
1165 cardnum
= bytebits_to_byte(BitStream
+8+(fmtLen
-17), 16);
1167 code1
= bytebits_to_byte(BitStream
+8,fmtLen
-32);
1168 code2
= bytebits_to_byte(BitStream
+8+(fmtLen
-32),32);
1169 PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x%08x, Raw: %x%08x%08x", fmtLen
, cardnum
, code1
, code2
, rawHi2
, rawHi
, rawLo
);
1171 code1
= bytebits_to_byte(BitStream
+8,fmtLen
);
1172 PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x, Raw: %x%08x%08x", fmtLen
, cardnum
, code1
, rawHi2
, rawHi
, rawLo
);
1176 PrintAndLog("DEBUG: idx: %d, Len: %d Printing Demod Buffer:", idx
, 96);
1179 //todo - convert hi2, hi, lo to demodbuffer for future sim/clone commands
1184 //Pyramid Prox demod - FSK RF/50 with preamble of 0000000000000001 (always a 128 bit data stream)
1185 //print full Farpointe Data/Pyramid Prox ID and some bit format details if found
1186 int CmdFSKdemodPyramid(const char *Cmd
)
1188 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1189 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
1190 size_t size
= getFromGraphBuf(BitStream
);
1191 if (size
==0) return 0;
1193 //get binary from fsk wave
1194 int idx
= PyramiddemodFSK(BitStream
, &size
);
1196 if (g_debugMode
==1){
1198 PrintAndLog("DEBUG: Error - not enough samples");
1200 PrintAndLog("DEBUG: Error - only noise found");
1202 PrintAndLog("DEBUG: Error - problem during FSK demod");
1204 PrintAndLog("DEBUG: Error - Size not correct: %d", size
);
1206 PrintAndLog("DEBUG: Error - Pyramid preamble not found");
1208 PrintAndLog("DEBUG: Error - idx: %d",idx
);
1213 // 0 10 20 30 40 50 60
1215 // 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3
1216 // -----------------------------------------------------------------------------
1217 // 0000000 0 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1
1218 // premable xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o
1220 // 64 70 80 90 100 110 120
1222 // 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7
1223 // -----------------------------------------------------------------------------
1224 // 0000000 1 0000000 1 0000000 1 0110111 0 0011000 1 0000001 0 0001100 1 1001010 0
1225 // xxxxxxx o xxxxxxx o xxxxxxx o xswffff o ffffccc o ccccccc o ccccccw o ppppppp o
1226 // |---115---||---------71---------|
1227 // s = format start bit, o = odd parity of last 7 bits
1228 // f = facility code, c = card number
1229 // w = wiegand parity, x = extra space for other formats
1230 // p = unknown checksum
1231 // (26 bit format shown)
1233 //get raw ID before removing parities
1234 uint32_t rawLo
= bytebits_to_byte(BitStream
+idx
+96,32);
1235 uint32_t rawHi
= bytebits_to_byte(BitStream
+idx
+64,32);
1236 uint32_t rawHi2
= bytebits_to_byte(BitStream
+idx
+32,32);
1237 uint32_t rawHi3
= bytebits_to_byte(BitStream
+idx
,32);
1238 setDemodBuf(BitStream
,128,idx
);
1240 size
= removeParity(BitStream
, idx
+8, 8, 1, 120);
1242 if (g_debugMode
==1) PrintAndLog("DEBUG: Error at parity check-tag size does not match Pyramid format, SIZE: %d, IDX: %d, hi3: %x",size
, idx
, rawHi3
);
1246 // ok valid card found!
1249 // 0 10 20 30 40 50 60 70
1251 // 01234567890123456789012345678901234567890123456789012345678901234567890
1252 // -----------------------------------------------------------------------
1253 // 00000000000000000000000000000000000000000000000000000000000000000000000
1254 // xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
1258 // 1 2 34567890 1234567890123456 7 8901234
1259 // ---------------------------------------
1260 // 1 1 01110011 0000000001000110 0 1001010
1261 // s w ffffffff cccccccccccccccc w ppppppp
1262 // |--115-| |------71------|
1263 // s = format start bit, o = odd parity of last 7 bits
1264 // f = facility code, c = card number
1265 // w = wiegand parity, x = extra space for other formats
1266 // p = unknown checksum
1267 // (26 bit format shown)
1269 //find start bit to get fmtLen
1271 for (j
=0; j
<size
; j
++){
1272 if(BitStream
[j
]) break;
1274 uint8_t fmtLen
= size
-j
-8;
1276 uint32_t cardnum
= 0;
1278 //uint32_t code2 = 0;
1280 fc
= bytebits_to_byte(BitStream
+73, 8);
1281 cardnum
= bytebits_to_byte(BitStream
+81, 16);
1282 code1
= bytebits_to_byte(BitStream
+72,fmtLen
);
1283 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
);
1284 } else if (fmtLen
==45){
1285 fmtLen
=42; //end = 10 bits not 7 like 26 bit fmt
1286 fc
= bytebits_to_byte(BitStream
+53, 10);
1287 cardnum
= bytebits_to_byte(BitStream
+63, 32);
1288 PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Raw: %x%08x%08x%08x", fmtLen
, fc
, cardnum
, rawHi3
, rawHi2
, rawHi
, rawLo
);
1290 cardnum
= bytebits_to_byte(BitStream
+81, 16);
1292 //code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen-32);
1293 //code2 = bytebits_to_byte(BitStream+(size-32),32);
1294 PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %x%08x%08x%08x", fmtLen
, cardnum
, rawHi3
, rawHi2
, rawHi
, rawLo
);
1296 //code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen);
1297 PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %x%08x%08x%08x", fmtLen
, cardnum
, rawHi3
, rawHi2
, rawHi
, rawLo
);
1301 PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx
, 128);
1307 int CmdFSKdemod(const char *Cmd
) //old CmdFSKdemod needs updating
1309 static const int LowTone
[] = {
1310 1, 1, 1, 1, 1, -1, -1, -1, -1, -1,
1311 1, 1, 1, 1, 1, -1, -1, -1, -1, -1,
1312 1, 1, 1, 1, 1, -1, -1, -1, -1, -1,
1313 1, 1, 1, 1, 1, -1, -1, -1, -1, -1,
1314 1, 1, 1, 1, 1, -1, -1, -1, -1, -1
1316 static const int HighTone
[] = {
1317 1, 1, 1, 1, 1, -1, -1, -1, -1,
1318 1, 1, 1, 1, -1, -1, -1, -1,
1319 1, 1, 1, 1, -1, -1, -1, -1,
1320 1, 1, 1, 1, -1, -1, -1, -1,
1321 1, 1, 1, 1, -1, -1, -1, -1,
1322 1, 1, 1, 1, -1, -1, -1, -1, -1,
1325 int lowLen
= sizeof (LowTone
) / sizeof (int);
1326 int highLen
= sizeof (HighTone
) / sizeof (int);
1327 int convLen
= (highLen
> lowLen
) ? highLen
: lowLen
;
1328 uint32_t hi
= 0, lo
= 0;
1331 int minMark
= 0, maxMark
= 0;
1333 for (i
= 0; i
< GraphTraceLen
- convLen
; ++i
) {
1334 int lowSum
= 0, highSum
= 0;
1336 for (j
= 0; j
< lowLen
; ++j
) {
1337 lowSum
+= LowTone
[j
]*GraphBuffer
[i
+j
];
1339 for (j
= 0; j
< highLen
; ++j
) {
1340 highSum
+= HighTone
[j
] * GraphBuffer
[i
+ j
];
1342 lowSum
= abs(100 * lowSum
/ lowLen
);
1343 highSum
= abs(100 * highSum
/ highLen
);
1344 GraphBuffer
[i
] = (highSum
<< 16) | lowSum
;
1347 for(i
= 0; i
< GraphTraceLen
- convLen
- 16; ++i
) {
1348 int lowTot
= 0, highTot
= 0;
1349 // 10 and 8 are f_s divided by f_l and f_h, rounded
1350 for (j
= 0; j
< 10; ++j
) {
1351 lowTot
+= (GraphBuffer
[i
+j
] & 0xffff);
1353 for (j
= 0; j
< 8; j
++) {
1354 highTot
+= (GraphBuffer
[i
+ j
] >> 16);
1356 GraphBuffer
[i
] = lowTot
- highTot
;
1357 if (GraphBuffer
[i
] > maxMark
) maxMark
= GraphBuffer
[i
];
1358 if (GraphBuffer
[i
] < minMark
) minMark
= GraphBuffer
[i
];
1361 GraphTraceLen
-= (convLen
+ 16);
1362 RepaintGraphWindow();
1364 // Find bit-sync (3 lo followed by 3 high) (HID ONLY)
1365 int max
= 0, maxPos
= 0;
1366 for (i
= 0; i
< 6000; ++i
) {
1368 for (j
= 0; j
< 3 * lowLen
; ++j
) {
1369 dec
-= GraphBuffer
[i
+ j
];
1371 for (; j
< 3 * (lowLen
+ highLen
); ++j
) {
1372 dec
+= GraphBuffer
[i
+ j
];
1380 // place start of bit sync marker in graph
1381 GraphBuffer
[maxPos
] = maxMark
;
1382 GraphBuffer
[maxPos
+ 1] = minMark
;
1386 // place end of bit sync marker in graph
1387 GraphBuffer
[maxPos
] = maxMark
;
1388 GraphBuffer
[maxPos
+1] = minMark
;
1390 PrintAndLog("actual data bits start at sample %d", maxPos
);
1391 PrintAndLog("length %d/%d", highLen
, lowLen
);
1393 uint8_t bits
[46] = {0x00};
1395 // find bit pairs and manchester decode them
1396 for (i
= 0; i
< arraylen(bits
) - 1; ++i
) {
1398 for (j
= 0; j
< lowLen
; ++j
) {
1399 dec
-= GraphBuffer
[maxPos
+ j
];
1401 for (; j
< lowLen
+ highLen
; ++j
) {
1402 dec
+= GraphBuffer
[maxPos
+ j
];
1405 // place inter bit marker in graph
1406 GraphBuffer
[maxPos
] = maxMark
;
1407 GraphBuffer
[maxPos
+ 1] = minMark
;
1409 // hi and lo form a 64 bit pair
1410 hi
= (hi
<< 1) | (lo
>> 31);
1412 // store decoded bit as binary (in hi/lo) and text (in bits[])
1420 PrintAndLog("bits: '%s'", bits
);
1421 PrintAndLog("hex: %08x %08x", hi
, lo
);
1426 //attempt to detect the field clock and bit clock for FSK
1427 int CmdFSKfcDetect(const char *Cmd
)
1429 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
1430 size_t size
= getFromGraphBuf(BitStream
);
1431 if (size
==0) return 0;
1433 uint16_t ans
= countFC(BitStream
, size
, &dummy
);
1435 if (g_debugMode
) PrintAndLog("DEBUG: No data found");
1439 fc1
= (ans
>> 8) & 0xFF;
1442 uint8_t rf1
= detectFSKClk(BitStream
, size
, fc1
, fc2
);
1444 if (g_debugMode
) PrintAndLog("DEBUG: Clock detect error");
1447 if ((fc1
==10 && fc2
==8) || (fc1
==8 && fc2
==5)){
1448 PrintAndLog("Detected Field Clocks: FC/%d, FC/%d - Bit Clock: RF/%d", fc1
, fc2
, rf1
);
1452 PrintAndLog("DEBUG: unknown fsk field clock detected");
1453 PrintAndLog("Detected Field Clocks: FC/%d, FC/%d - Bit Clock: RF/%d", fc1
, fc2
, rf1
);
1459 //attempt to detect the bit clock for PSK modulations
1460 int CmdDetectPSKClockRate(const char *Cmd
)
1462 GetPskClock("",0,0);
1467 //attempt to detect the bit clock for NRZ modulations
1468 int CmdDetectNRZClockRate(const char *Cmd
)
1470 GetNrzClock("",0,0);
1475 //attempt to psk1 demod graph buffer
1476 int PSKDemod(const char *Cmd
, uint8_t verbose
)
1481 sscanf(Cmd
, "%i %i %i", &clk
, &invert
, &maxErr
);
1486 if (invert
!= 0 && invert
!= 1) {
1487 PrintAndLog("Invalid argument: %s", Cmd
);
1490 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
1491 size_t BitLen
= getFromGraphBuf(BitStream
);
1492 if (BitLen
==0) return 0;
1494 errCnt
= pskRawDemod(BitStream
, &BitLen
,&clk
,&invert
);
1495 if (errCnt
> maxErr
){
1496 if (g_debugMode
==1) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk
,invert
,BitLen
,errCnt
);
1499 if (errCnt
<0|| BitLen
<16){ //throw away static - allow 1 and -1 (in case of threshold command first)
1500 if (g_debugMode
==1) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk
,invert
,BitLen
,errCnt
);
1503 if (verbose
) PrintAndLog("Tried PSK Demod using Clock: %d - invert: %d - Bits Found: %d",clk
,invert
,BitLen
);
1504 //prime demod buffer for output
1505 setDemodBuf(BitStream
,BitLen
,0);
1510 // Indala 26 bit decode
1512 // optional arguments - same as CmdpskNRZrawDemod (clock & invert)
1513 int CmdIndalaDecode(const char *Cmd
)
1517 ans
= PSKDemod(Cmd
, 0);
1518 } else{ //default to RF/32
1519 ans
= PSKDemod("32", 0);
1524 PrintAndLog("Error1: %d",ans
);
1528 ans
= indala26decode(DemodBuffer
,(size_t *) &DemodBufferLen
, &invert
);
1531 PrintAndLog("Error2: %d",ans
);
1534 char showbits
[251]={0x00};
1537 PrintAndLog("Had to invert bits");
1539 //convert UID to HEX
1540 uint32_t uid1
, uid2
, uid3
, uid4
, uid5
, uid6
, uid7
;
1544 PrintAndLog("BitLen: %d",DemodBufferLen
);
1545 if (DemodBufferLen
==64){
1546 for( idx
=0; idx
<64; idx
++) {
1547 uid1
=(uid1
<<1)|(uid2
>>31);
1548 if (DemodBuffer
[idx
] == 0) {
1557 PrintAndLog("Indala UID=%s (%x%08x)", showbits
, uid1
, uid2
);
1565 for( idx
=0; idx
<DemodBufferLen
; idx
++) {
1566 uid1
=(uid1
<<1)|(uid2
>>31);
1567 uid2
=(uid2
<<1)|(uid3
>>31);
1568 uid3
=(uid3
<<1)|(uid4
>>31);
1569 uid4
=(uid4
<<1)|(uid5
>>31);
1570 uid5
=(uid5
<<1)|(uid6
>>31);
1571 uid6
=(uid6
<<1)|(uid7
>>31);
1572 if (DemodBuffer
[idx
] == 0) {
1582 PrintAndLog("Indala UID=%s (%x%08x%08x%08x%08x%08x%08x)", showbits
, uid1
, uid2
, uid3
, uid4
, uid5
, uid6
, uid7
);
1585 PrintAndLog("DEBUG: printing demodbuffer:");
1593 //attempt to clean psk wave noise after a peak
1594 //NOTE RELIES ON PEAKS :(
1595 int CmdPskClean(const char *Cmd)
1597 uint8_t bitStream[MAX_GRAPH_TRACE_LEN]={0};
1598 size_t bitLen = getFromGraphBuf(bitStream);
1599 pskCleanWave(bitStream, bitLen);
1600 setGraphBuf(bitStream, bitLen);
1606 // takes 3 arguments - clock, invert, maxErr as integers
1607 // attempts to demodulate nrz only
1608 // prints binary found and saves in demodbuffer for further commands
1609 int CmdNRZrawDemod(const char *Cmd
)
1614 char cmdp
= param_getchar(Cmd
, 0);
1615 if (strlen(Cmd
) > 10 || cmdp
== 'h' || cmdp
== 'H') {
1616 PrintAndLog("Usage: data nrzrawdemod [clock] <0|1> [maxError]");
1617 PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
1618 PrintAndLog(" <invert>, 1 for invert output");
1619 PrintAndLog(" [set maximum allowed errors], default = 100.");
1621 PrintAndLog(" sample: data nrzrawdemod = demod a nrz/direct tag from GraphBuffer");
1622 PrintAndLog(" : data nrzrawdemod 32 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32");
1623 PrintAndLog(" : data nrzrawdemod 32 1 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32 and inverting data");
1624 PrintAndLog(" : data nrzrawdemod 1 = demod a nrz/direct tag from GraphBuffer while inverting data");
1625 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");
1630 sscanf(Cmd
, "%i %i %i", &clk
, &invert
, &maxErr
);
1635 if (invert
!= 0 && invert
!= 1) {
1636 PrintAndLog("Invalid argument: %s", Cmd
);
1639 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
1640 size_t BitLen
= getFromGraphBuf(BitStream
);
1641 if (BitLen
==0) return 0;
1643 errCnt
= nrzRawDemod(BitStream
, &BitLen
, &clk
, &invert
, maxErr
);
1644 if (errCnt
> maxErr
){
1645 if (g_debugMode
==1) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk
,invert
,BitLen
,errCnt
);
1648 if (errCnt
<0|| BitLen
<16){ //throw away static - allow 1 and -1 (in case of threshold command first)
1649 if (g_debugMode
==1) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk
,invert
,BitLen
,errCnt
);
1652 PrintAndLog("Tried NRZ Demod using Clock: %d - invert: %d - Bits Found: %d",clk
,invert
,BitLen
);
1653 //prime demod buffer for output
1654 setDemodBuf(BitStream
,BitLen
,0);
1657 PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt
);
1660 PrintAndLog("NRZ demoded bitstream:");
1661 // Now output the bitstream to the scrollback by line of 16 bits
1667 // takes 3 arguments - clock, invert, maxErr as integers
1668 // attempts to demodulate psk only
1669 // prints binary found and saves in demodbuffer for further commands
1670 int CmdPSK1rawDemod(const char *Cmd
)
1673 char cmdp
= param_getchar(Cmd
, 0);
1674 if (strlen(Cmd
) > 10 || cmdp
== 'h' || cmdp
== 'H') {
1675 PrintAndLog("Usage: data psk1rawdemod [clock] <0|1> [maxError]");
1676 PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
1677 PrintAndLog(" <invert>, 1 for invert output");
1678 PrintAndLog(" [set maximum allowed errors], default = 100.");
1680 PrintAndLog(" sample: data psk1rawdemod = demod a psk1 tag from GraphBuffer");
1681 PrintAndLog(" : data psk1rawdemod 32 = demod a psk1 tag from GraphBuffer using a clock of RF/32");
1682 PrintAndLog(" : data psk1rawdemod 32 1 = demod a psk1 tag from GraphBuffer using a clock of RF/32 and inverting data");
1683 PrintAndLog(" : data psk1rawdemod 1 = demod a psk1 tag from GraphBuffer while inverting data");
1684 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");
1687 errCnt
= PSKDemod(Cmd
, 1);
1690 if (g_debugMode
) PrintAndLog("Error demoding: %d",errCnt
);
1694 PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt
);
1697 PrintAndLog("PSK demoded bitstream:");
1698 // Now output the bitstream to the scrollback by line of 16 bits
1704 // takes same args as cmdpsknrzrawdemod
1705 int CmdPSK2rawDemod(const char *Cmd
)
1708 char cmdp
= param_getchar(Cmd
, 0);
1709 if (strlen(Cmd
) > 10 || cmdp
== 'h' || cmdp
== 'H') {
1710 PrintAndLog("Usage: data psk2rawdemod [clock] <0|1> [maxError]");
1711 PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
1712 PrintAndLog(" <invert>, 1 for invert output");
1713 PrintAndLog(" [set maximum allowed errors], default = 100.");
1715 PrintAndLog(" sample: data psk2rawdemod = demod a psk2 tag from GraphBuffer, autodetect clock");
1716 PrintAndLog(" : data psk2rawdemod 32 = demod a psk2 tag from GraphBuffer using a clock of RF/32");
1717 PrintAndLog(" : data psk2rawdemod 32 1 = demod a psk2 tag from GraphBuffer using a clock of RF/32 and inverting output");
1718 PrintAndLog(" : data psk2rawdemod 1 = demod a psk2 tag from GraphBuffer, autodetect clock and invert output");
1719 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");
1722 errCnt
=PSKDemod(Cmd
, 1);
1724 if (g_debugMode
) PrintAndLog("Error demoding: %d",errCnt
);
1727 psk1TOpsk2(DemodBuffer
, DemodBufferLen
);
1730 PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt
);
1731 PrintAndLog("PSK2 demoded bitstream:");
1732 // Now output the bitstream to the scrollback by line of 16 bits
1736 PrintAndLog("PSK2 demoded bitstream:");
1737 // Now output the bitstream to the scrollback by line of 16 bits
1743 int CmdGrid(const char *Cmd
)
1745 sscanf(Cmd
, "%i %i", &PlotGridX
, &PlotGridY
);
1746 PlotGridXdefault
= PlotGridX
;
1747 PlotGridYdefault
= PlotGridY
;
1748 RepaintGraphWindow();
1752 int CmdHexsamples(const char *Cmd
)
1757 char string_buf
[25];
1758 char* string_ptr
= string_buf
;
1759 uint8_t got
[BIGBUF_SIZE
];
1761 sscanf(Cmd
, "%i %i", &requested
, &offset
);
1763 /* if no args send something */
1764 if (requested
== 0) {
1767 if (offset
+ requested
> sizeof(got
)) {
1768 PrintAndLog("Tried to read past end of buffer, <bytes> + <offset> > %d", BIGBUF_SIZE
);
1772 GetFromBigBuf(got
,requested
,offset
);
1773 WaitForResponse(CMD_ACK
,NULL
);
1776 for (j
= 0; j
< requested
; j
++) {
1778 string_ptr
+= sprintf(string_ptr
, "%02x ", got
[j
]);
1780 *(string_ptr
- 1) = '\0'; // remove the trailing space
1781 PrintAndLog("%s", string_buf
);
1782 string_buf
[0] = '\0';
1783 string_ptr
= string_buf
;
1786 if (j
== requested
- 1 && string_buf
[0] != '\0') { // print any remaining bytes
1787 *(string_ptr
- 1) = '\0';
1788 PrintAndLog("%s", string_buf
);
1789 string_buf
[0] = '\0';
1795 int CmdHide(const char *Cmd
)
1801 int CmdHpf(const char *Cmd
)
1806 for (i
= 10; i
< GraphTraceLen
; ++i
)
1807 accum
+= GraphBuffer
[i
];
1808 accum
/= (GraphTraceLen
- 10);
1809 for (i
= 0; i
< GraphTraceLen
; ++i
)
1810 GraphBuffer
[i
] -= accum
;
1812 RepaintGraphWindow();
1821 bool _headBit( BitstreamOut
*stream
)
1823 int bytepos
= stream
->position
>> 3; // divide by 8
1824 int bitpos
= (stream
->position
++) & 7; // mask out 00000111
1825 return (*(stream
->buffer
+ bytepos
) >> (7-bitpos
)) & 1;
1828 uint8_t getByte(uint8_t bits_per_sample
, BitstreamOut
* b
)
1832 for(i
=0 ; i
< bits_per_sample
; i
++)
1834 val
|= (_headBit(b
) << (7-i
));
1839 int CmdSamples(const char *Cmd
)
1841 //If we get all but the last byte in bigbuf,
1842 // we don't have to worry about remaining trash
1843 // in the last byte in case the bits-per-sample
1844 // does not line up on byte boundaries
1845 uint8_t got
[BIGBUF_SIZE
-1] = { 0 };
1847 int n
= strtol(Cmd
, NULL
, 0);
1851 if (n
> sizeof(got
))
1854 PrintAndLog("Reading %d bytes from device memory\n", n
);
1855 GetFromBigBuf(got
,n
,0);
1856 PrintAndLog("Data fetched");
1857 UsbCommand response
;
1858 WaitForResponse(CMD_ACK
, &response
);
1859 uint8_t bits_per_sample
= 8;
1861 //Old devices without this feature would send 0 at arg[0]
1862 if(response
.arg
[0] > 0)
1864 sample_config
*sc
= (sample_config
*) response
.d
.asBytes
;
1865 PrintAndLog("Samples @ %d bits/smpl, decimation 1:%d ", sc
->bits_per_sample
1867 bits_per_sample
= sc
->bits_per_sample
;
1869 if(bits_per_sample
< 8)
1871 PrintAndLog("Unpacking...");
1872 BitstreamOut bout
= { got
, bits_per_sample
* n
, 0};
1874 for (j
= 0; j
* bits_per_sample
< n
* 8 && j
< sizeof(GraphBuffer
); j
++) {
1875 uint8_t sample
= getByte(bits_per_sample
, &bout
);
1876 GraphBuffer
[j
] = ((int) sample
)- 128;
1879 PrintAndLog("Unpacked %d samples" , j
);
1882 for (int j
= 0; j
< n
; j
++) {
1883 GraphBuffer
[j
] = ((int)got
[j
]) - 128;
1888 RepaintGraphWindow();
1892 int CmdTuneSamples(const char *Cmd
)
1895 printf("\nMeasuring antenna characteristics, please wait...");
1897 UsbCommand c
= {CMD_MEASURE_ANTENNA_TUNING
};
1901 while(!WaitForResponseTimeout(CMD_MEASURED_ANTENNA_TUNING
,&resp
,1000)) {
1905 PrintAndLog("\nNo response from Proxmark. Aborting...");
1911 int vLf125
, vLf134
, vHf
;
1912 vLf125
= resp
.arg
[0] & 0xffff;
1913 vLf134
= resp
.arg
[0] >> 16;
1914 vHf
= resp
.arg
[1] & 0xffff;;
1915 peakf
= resp
.arg
[2] & 0xffff;
1916 peakv
= resp
.arg
[2] >> 16;
1918 PrintAndLog("# LF antenna: %5.2f V @ 125.00 kHz", vLf125
/1000.0);
1919 PrintAndLog("# LF antenna: %5.2f V @ 134.00 kHz", vLf134
/1000.0);
1920 PrintAndLog("# LF optimal: %5.2f V @%9.2f kHz", peakv
/1000.0, 12000.0/(peakf
+1));
1921 PrintAndLog("# HF antenna: %5.2f V @ 13.56 MHz", vHf
/1000.0);
1923 PrintAndLog("# Your LF antenna is unusable.");
1924 else if (peakv
<10000)
1925 PrintAndLog("# Your LF antenna is marginal.");
1927 PrintAndLog("# Your HF antenna is unusable.");
1929 PrintAndLog("# Your HF antenna is marginal.");
1931 for (int i
= 0; i
< 256; i
++) {
1932 GraphBuffer
[i
] = resp
.d
.asBytes
[i
] - 128;
1935 PrintAndLog("Done! Divisor 89 is 134khz, 95 is 125khz.\n");
1937 GraphTraceLen
= 256;
1944 int CmdLoad(const char *Cmd
)
1946 char filename
[FILE_PATH_SIZE
] = {0x00};
1950 if (len
> FILE_PATH_SIZE
) len
= FILE_PATH_SIZE
;
1951 memcpy(filename
, Cmd
, len
);
1953 FILE *f
= fopen(filename
, "r");
1955 PrintAndLog("couldn't open '%s'", filename
);
1961 while (fgets(line
, sizeof (line
), f
)) {
1962 GraphBuffer
[GraphTraceLen
] = atoi(line
);
1966 PrintAndLog("loaded %d samples", GraphTraceLen
);
1967 RepaintGraphWindow();
1971 int CmdLtrim(const char *Cmd
)
1975 for (int i
= ds
; i
< GraphTraceLen
; ++i
)
1976 GraphBuffer
[i
-ds
] = GraphBuffer
[i
];
1977 GraphTraceLen
-= ds
;
1979 RepaintGraphWindow();
1983 // trim graph to input argument length
1984 int CmdRtrim(const char *Cmd
)
1990 RepaintGraphWindow();
1995 * Manchester demodulate a bitstream. The bitstream needs to be already in
1996 * the GraphBuffer as 0 and 1 values
1998 * Give the clock rate as argument in order to help the sync - the algorithm
1999 * resyncs at each pulse anyway.
2001 * Not optimized by any means, this is the 1st time I'm writing this type of
2002 * routine, feel free to improve...
2004 * 1st argument: clock rate (as number of samples per clock rate)
2005 * Typical values can be 64, 32, 128...
2007 int CmdManchesterDemod(const char *Cmd
)
2009 int i
, j
, invert
= 0;
2015 int hithigh
, hitlow
, first
;
2021 /* check if we're inverting output */
2024 PrintAndLog("Inverting output");
2029 while(*Cmd
== ' '); // in case a 2nd argument was given
2032 /* Holds the decoded bitstream: each clock period contains 2 bits */
2033 /* later simplified to 1 bit after manchester decoding. */
2034 /* Add 10 bits to allow for noisy / uncertain traces without aborting */
2035 /* int BitStream[GraphTraceLen*2/clock+10]; */
2037 /* But it does not work if compiling on WIndows: therefore we just allocate a */
2039 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
] = {0};
2041 /* Detect high and lows */
2042 for (i
= 0; i
< GraphTraceLen
; i
++)
2044 if (GraphBuffer
[i
] > high
)
2045 high
= GraphBuffer
[i
];
2046 else if (GraphBuffer
[i
] < low
)
2047 low
= GraphBuffer
[i
];
2051 clock
= GetClock(Cmd
, high
, 1);
2053 int tolerance
= clock
/4;
2055 /* Detect first transition */
2056 /* Lo-Hi (arbitrary) */
2057 /* skip to the first high */
2058 for (i
= 0; i
< GraphTraceLen
; i
++)
2059 if (GraphBuffer
[i
] == high
)
2061 /* now look for the first low */
2062 for (; i
< GraphTraceLen
; i
++)
2064 if (GraphBuffer
[i
] == low
)
2071 /* If we're not working with 1/0s, demod based off clock */
2074 bit
= 0; /* We assume the 1st bit is zero, it may not be
2075 * the case: this routine (I think) has an init problem.
2078 for (; i
< (int)(GraphTraceLen
/ clock
); i
++)
2084 /* Find out if we hit both high and low peaks */
2085 for (j
= 0; j
< clock
; j
++)
2087 if (GraphBuffer
[(i
* clock
) + j
] == high
)
2089 else if (GraphBuffer
[(i
* clock
) + j
] == low
)
2092 /* it doesn't count if it's the first part of our read
2093 because it's really just trailing from the last sequence */
2094 if (first
&& (hithigh
|| hitlow
))
2095 hithigh
= hitlow
= 0;
2099 if (hithigh
&& hitlow
)
2103 /* If we didn't hit both high and low peaks, we had a bit transition */
2104 if (!hithigh
|| !hitlow
)
2107 BitStream
[bit2idx
++] = bit
^ invert
;
2111 /* standard 1/0 bitstream */
2115 /* Then detect duration between 2 successive transitions */
2116 for (bitidx
= 1; i
< GraphTraceLen
; i
++)
2118 if (GraphBuffer
[i
-1] != GraphBuffer
[i
])
2123 // Error check: if bitidx becomes too large, we do not
2124 // have a Manchester encoded bitstream or the clock is really
2126 if (bitidx
> (GraphTraceLen
*2/clock
+8) ) {
2127 PrintAndLog("Error: the clock you gave is probably wrong, aborting.");
2130 // Then switch depending on lc length:
2131 // Tolerance is 1/4 of clock rate (arbitrary)
2132 if (abs(lc
-clock
/2) < tolerance
) {
2133 // Short pulse : either "1" or "0"
2134 BitStream
[bitidx
++]=GraphBuffer
[i
-1];
2135 } else if (abs(lc
-clock
) < tolerance
) {
2136 // Long pulse: either "11" or "00"
2137 BitStream
[bitidx
++]=GraphBuffer
[i
-1];
2138 BitStream
[bitidx
++]=GraphBuffer
[i
-1];
2142 PrintAndLog("Warning: Manchester decode error for pulse width detection.");
2143 PrintAndLog("(too many of those messages mean either the stream is not Manchester encoded, or clock is wrong)");
2147 PrintAndLog("Error: too many detection errors, aborting.");
2154 // At this stage, we now have a bitstream of "01" ("1") or "10" ("0"), parse it into final decoded bitstream
2155 // Actually, we overwrite BitStream with the new decoded bitstream, we just need to be careful
2156 // to stop output at the final bitidx2 value, not bitidx
2157 for (i
= 0; i
< bitidx
; i
+= 2) {
2158 if ((BitStream
[i
] == 0) && (BitStream
[i
+1] == 1)) {
2159 BitStream
[bit2idx
++] = 1 ^ invert
;
2160 } else if ((BitStream
[i
] == 1) && (BitStream
[i
+1] == 0)) {
2161 BitStream
[bit2idx
++] = 0 ^ invert
;
2163 // We cannot end up in this state, this means we are unsynchronized,
2167 PrintAndLog("Unsynchronized, resync...");
2168 PrintAndLog("(too many of those messages mean the stream is not Manchester encoded)");
2172 PrintAndLog("Error: too many decode errors, aborting.");
2179 PrintAndLog("Manchester decoded bitstream");
2180 // Now output the bitstream to the scrollback by line of 16 bits
2181 for (i
= 0; i
< (bit2idx
-16); i
+=16) {
2182 PrintAndLog("%i %i %i %i %i %i %i %i %i %i %i %i %i %i %i %i",
2203 /* Modulate our data into manchester */
2204 int CmdManchesterMod(const char *Cmd
)
2208 int bit
, lastbit
, wave
;
2211 clock
= GetClock(Cmd
, 0, 1);
2215 for (i
= 0; i
< (int)(GraphTraceLen
/ clock
); i
++)
2217 bit
= GraphBuffer
[i
* clock
] ^ 1;
2219 for (j
= 0; j
< (int)(clock
/2); j
++)
2220 GraphBuffer
[(i
* clock
) + j
] = bit
^ lastbit
^ wave
;
2221 for (j
= (int)(clock
/2); j
< clock
; j
++)
2222 GraphBuffer
[(i
* clock
) + j
] = bit
^ lastbit
^ wave
^ 1;
2224 /* Keep track of how we start our wave and if we changed or not this time */
2225 wave
^= bit
^ lastbit
;
2229 RepaintGraphWindow();
2233 int CmdNorm(const char *Cmd
)
2236 int max
= INT_MIN
, min
= INT_MAX
;
2238 for (i
= 10; i
< GraphTraceLen
; ++i
) {
2239 if (GraphBuffer
[i
] > max
)
2240 max
= GraphBuffer
[i
];
2241 if (GraphBuffer
[i
] < min
)
2242 min
= GraphBuffer
[i
];
2246 for (i
= 0; i
< GraphTraceLen
; ++i
) {
2247 GraphBuffer
[i
] = (GraphBuffer
[i
] - ((max
+ min
) / 2)) * 256 /
2249 //marshmelow: adjusted *1000 to *256 to make +/- 128 so demod commands still work
2252 RepaintGraphWindow();
2256 int CmdPlot(const char *Cmd
)
2262 int CmdSave(const char *Cmd
)
2264 char filename
[FILE_PATH_SIZE
] = {0x00};
2268 if (len
> FILE_PATH_SIZE
) len
= FILE_PATH_SIZE
;
2269 memcpy(filename
, Cmd
, len
);
2272 FILE *f
= fopen(filename
, "w");
2274 PrintAndLog("couldn't open '%s'", filename
);
2278 for (i
= 0; i
< GraphTraceLen
; i
++) {
2279 fprintf(f
, "%d\n", GraphBuffer
[i
]);
2282 PrintAndLog("saved to '%s'", Cmd
);
2286 int CmdScale(const char *Cmd
)
2288 CursorScaleFactor
= atoi(Cmd
);
2289 if (CursorScaleFactor
== 0) {
2290 PrintAndLog("bad, can't have zero scale");
2291 CursorScaleFactor
= 1;
2293 RepaintGraphWindow();
2297 int CmdThreshold(const char *Cmd
)
2299 int threshold
= atoi(Cmd
);
2301 for (int i
= 0; i
< GraphTraceLen
; ++i
) {
2302 if (GraphBuffer
[i
] >= threshold
)
2305 GraphBuffer
[i
] = -1;
2307 RepaintGraphWindow();
2311 int CmdDirectionalThreshold(const char *Cmd
)
2313 int8_t upThres
= param_get8(Cmd
, 0);
2314 int8_t downThres
= param_get8(Cmd
, 1);
2316 printf("Applying Up Threshold: %d, Down Threshold: %d\n", upThres
, downThres
);
2318 int lastValue
= GraphBuffer
[0];
2319 GraphBuffer
[0] = 0; // Will be changed at the end, but init 0 as we adjust to last samples value if no threshold kicks in.
2321 for (int i
= 1; i
< GraphTraceLen
; ++i
) {
2322 // Apply first threshold to samples heading up
2323 if (GraphBuffer
[i
] >= upThres
&& GraphBuffer
[i
] > lastValue
)
2325 lastValue
= GraphBuffer
[i
]; // Buffer last value as we overwrite it.
2328 // Apply second threshold to samples heading down
2329 else if (GraphBuffer
[i
] <= downThres
&& GraphBuffer
[i
] < lastValue
)
2331 lastValue
= GraphBuffer
[i
]; // Buffer last value as we overwrite it.
2332 GraphBuffer
[i
] = -1;
2336 lastValue
= GraphBuffer
[i
]; // Buffer last value as we overwrite it.
2337 GraphBuffer
[i
] = GraphBuffer
[i
-1];
2341 GraphBuffer
[0] = GraphBuffer
[1]; // Aline with first edited sample.
2342 RepaintGraphWindow();
2346 int CmdZerocrossings(const char *Cmd
)
2348 // Zero-crossings aren't meaningful unless the signal is zero-mean.
2355 for (int i
= 0; i
< GraphTraceLen
; ++i
) {
2356 if (GraphBuffer
[i
] * sign
>= 0) {
2357 // No change in sign, reproduce the previous sample count.
2359 GraphBuffer
[i
] = lastZc
;
2361 // Change in sign, reset the sample count.
2363 GraphBuffer
[i
] = lastZc
;
2371 RepaintGraphWindow();
2375 static command_t CommandTable
[] =
2377 {"help", CmdHelp
, 1, "This help"},
2378 {"amp", CmdAmp
, 1, "Amplify peaks"},
2379 {"askdemod", Cmdaskdemod
, 1, "<0 or 1> -- Attempt to demodulate simple ASK tags"},
2380 {"askedgedetect", CmdAskEdgeDetect
, 1, "[threshold] Adjust Graph for manual ask demod using length of sample differences to detect the edge of a wave - default = 25"},
2381 {"askem410xdemod",CmdAskEM410xDemod
, 1, "[clock] [invert<0|1>] [maxErr] -- Attempt to demodulate ASK/Manchester tags and output binary (args optional)"},
2382 {"askmandemod", Cmdaskmandemod
, 1, "[clock] [invert<0|1>] [maxErr] -- Attempt to demodulate ASK/Manchester tags and output binary (args optional)"},
2383 {"askrawdemod", Cmdaskrawdemod
, 1, "[clock] [invert<0|1>] -- Attempt to demodulate ASK tags and output bin (args optional)"},
2384 {"autocorr", CmdAutoCorr
, 1, "<window length> -- Autocorrelation over window"},
2385 {"biphaserawdecode",CmdBiphaseDecodeRaw
,1,"[offset] [invert<0|1>] Biphase decode bin stream in demod buffer (offset = 0|1 bits to shift the decode start)"},
2386 {"bitsamples", CmdBitsamples
, 0, "Get raw samples as bitstring"},
2387 {"bitstream", CmdBitstream
, 1, "[clock rate] -- Convert waveform into a bitstream"},
2388 {"buffclear", CmdBuffClear
, 1, "Clear sample buffer and graph window"},
2389 {"dec", CmdDec
, 1, "Decimate samples"},
2390 {"detectclock", CmdDetectClockRate
, 1, "Detect ASK clock rate"},
2391 {"fskdemod", CmdFSKdemod
, 1, "Demodulate graph window as a HID FSK"},
2392 {"fskawiddemod", CmdFSKdemodAWID
, 1, "Demodulate graph window as an AWID FSK tag using raw"},
2393 {"fskfcdetect", CmdFSKfcDetect
, 1, "Try to detect the Field Clock of an FSK wave"},
2394 {"fskhiddemod", CmdFSKdemodHID
, 1, "Demodulate graph window as a HID FSK tag using raw"},
2395 {"fskiodemod", CmdFSKdemodIO
, 1, "Demodulate graph window as an IO Prox tag FSK using raw"},
2396 {"fskpyramiddemod",CmdFSKdemodPyramid
,1, "Demodulate graph window as a Pyramid FSK tag using raw"},
2397 {"fskparadoxdemod",CmdFSKdemodParadox
,1, "Demodulate graph window as a Paradox FSK tag using raw"},
2398 {"fskrawdemod", CmdFSKrawdemod
, 1, "[clock rate] [invert] [rchigh] [rclow] Demodulate graph window from FSK to bin (clock = 50)(invert = 1|0)(rchigh = 10)(rclow=8)"},
2399 {"grid", CmdGrid
, 1, "<x> <y> -- overlay grid on graph window, use zero value to turn off either"},
2400 {"hexsamples", CmdHexsamples
, 0, "<bytes> [<offset>] -- Dump big buffer as hex bytes"},
2401 {"hide", CmdHide
, 1, "Hide graph window"},
2402 {"hpf", CmdHpf
, 1, "Remove DC offset from trace"},
2403 {"load", CmdLoad
, 1, "<filename> -- Load trace (to graph window"},
2404 {"ltrim", CmdLtrim
, 1, "<samples> -- Trim samples from left of trace"},
2405 {"rtrim", CmdRtrim
, 1, "<location to end trace> -- Trim samples from right of trace"},
2406 {"mandemod", CmdManchesterDemod
, 1, "[i] [clock rate] -- Manchester demodulate binary stream (option 'i' to invert output)"},
2407 {"manrawdecode", Cmdmandecoderaw
, 1, "Manchester decode binary stream already in graph buffer"},
2408 {"manmod", CmdManchesterMod
, 1, "[clock rate] -- Manchester modulate a binary stream"},
2409 {"norm", CmdNorm
, 1, "Normalize max/min to +/-128"},
2410 {"nrzdetectclock",CmdDetectNRZClockRate
, 1, "Detect ASK, PSK, or NRZ clock rate"},
2411 {"nrzrawdemod", CmdNRZrawDemod
, 1, "[clock] [invert<0|1>] [maxErr] -- Attempt to demodulate nrz tags and output binary (args optional)"},
2412 {"plot", CmdPlot
, 1, "Show graph window (hit 'h' in window for keystroke help)"},
2413 {"pskdetectclock",CmdDetectPSKClockRate
, 1, "Detect ASK, PSK, or NRZ clock rate"},
2414 {"pskindalademod",CmdIndalaDecode
, 1, "[clock] [invert<0|1>] -- Attempt to demodulate psk1 indala tags and output ID binary & hex (args optional)"},
2415 {"psk1rawdemod", CmdPSK1rawDemod
, 1, "[clock] [invert<0|1>] [maxErr] -- Attempt to demodulate psk1 tags and output binary (args optional)"},
2416 {"psk2rawdemod", CmdPSK2rawDemod
, 1, "[clock] [invert<0|1>] [maxErr] -- Attempt to demodulate psk2 tags and output binary (args optional)"},
2417 {"samples", CmdSamples
, 0, "[512 - 40000] -- Get raw samples for graph window"},
2418 {"save", CmdSave
, 1, "<filename> -- Save trace (from graph window)"},
2419 {"scale", CmdScale
, 1, "<int> -- Set cursor display scale"},
2420 {"setdebugmode", CmdSetDebugMode
, 1, "<0|1> -- Turn on or off Debugging Mode for demods"},
2421 {"shiftgraphzero",CmdGraphShiftZero
, 1, "<shift> -- Shift 0 for Graphed wave + or - shift value"},
2422 {"threshold", CmdThreshold
, 1, "<threshold> -- Maximize/minimize every value in the graph window depending on threshold"},
2423 {"dirthreshold", CmdDirectionalThreshold
, 1, "<thres up> <thres down> -- Max rising higher up-thres/ Min falling lower down-thres, keep rest as prev."},
2424 {"tune", CmdTuneSamples
, 0, "Get hw tune samples for graph window"},
2425 {"undec", CmdUndec
, 1, "Un-decimate samples by 2"},
2426 {"zerocrossings", CmdZerocrossings
, 1, "Count time between zero-crossings"},
2427 {NULL
, NULL
, 0, NULL
}
2430 int CmdData(const char *Cmd
)
2432 CmdsParse(CommandTable
, Cmd
);
2436 int CmdHelp(const char *Cmd
)
2438 CmdsHelp(CommandTable
);