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
61 for (i
= 0; i
<= (bitLen
-16); i
+=16) {
62 PrintAndLog("%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i",
84 int CmdAmp(const char *Cmd
)
86 int i
, rising
, falling
;
87 int max
= INT_MIN
, min
= INT_MAX
;
89 for (i
= 10; i
< GraphTraceLen
; ++i
) {
90 if (GraphBuffer
[i
] > max
)
92 if (GraphBuffer
[i
] < min
)
98 for (i
= 0; i
< GraphTraceLen
; ++i
) {
99 if (GraphBuffer
[i
+ 1] < GraphBuffer
[i
]) {
101 GraphBuffer
[i
] = max
;
106 if (GraphBuffer
[i
+ 1] > GraphBuffer
[i
]) {
108 GraphBuffer
[i
] = min
;
115 RepaintGraphWindow();
120 * Generic command to demodulate ASK.
122 * Argument is convention: positive or negative (High mod means zero
123 * or high mod means one)
125 * Updates the Graph trace with 0/1 values
130 //this method is dependant on all highs and lows to be the same(or clipped) this creates issues[marshmellow] it also ignores the clock
131 int Cmdaskdemod(const char *Cmd
)
134 int c
, high
= 0, low
= 0;
136 // TODO: complain if we do not give 2 arguments here !
137 // (AL - this doesn't make sense! we're only using one argument!!!)
138 sscanf(Cmd
, "%i", &c
);
140 /* Detect high and lows and clock */
142 for (i
= 0; i
< GraphTraceLen
; ++i
)
144 if (GraphBuffer
[i
] > high
)
145 high
= GraphBuffer
[i
];
146 else if (GraphBuffer
[i
] < low
)
147 low
= GraphBuffer
[i
];
151 if (c
!= 0 && c
!= 1) {
152 PrintAndLog("Invalid argument: %s", Cmd
);
156 if (GraphBuffer
[0] > 0) {
157 GraphBuffer
[0] = 1-c
;
161 for (i
= 1; i
< GraphTraceLen
; ++i
) {
162 /* Transitions are detected at each peak
163 * Transitions are either:
164 * - we're low: transition if we hit a high
165 * - we're high: transition if we hit a low
166 * (we need to do it this way because some tags keep high or
167 * low for long periods, others just reach the peak and go
170 //[marhsmellow] change == to >= for high and <= for low for fuzz
171 if ((GraphBuffer
[i
] == high
) && (GraphBuffer
[i
- 1] == c
)) {
172 GraphBuffer
[i
] = 1 - c
;
173 } else if ((GraphBuffer
[i
] == low
) && (GraphBuffer
[i
- 1] == (1 - c
))){
177 GraphBuffer
[i
] = GraphBuffer
[i
- 1];
180 RepaintGraphWindow();
185 void printBitStream(uint8_t BitStream
[], uint32_t bitLen
)
189 PrintAndLog("Too few bits found: %d",bitLen
);
192 if (bitLen
>512) bitLen
=512;
193 for (i
= 0; i
<= (bitLen
-16); i
+=16) {
194 PrintAndLog("%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i",
215 //print EM410x ID in multiple formats
216 void printEM410x(uint64_t id
)
223 for (ii
=5; ii
>0;ii
--){
225 id2lo
=(id2lo
<<1LL) | ((id
& (iii
<< (i
+((ii
-1)*8)))) >> (i
+((ii
-1)*8)));
229 PrintAndLog("EM TAG ID : %010llx", id
);
230 PrintAndLog("Unique TAG ID: %010llx", id2lo
);
231 PrintAndLog("DEZ 8 : %08lld",id
& 0xFFFFFF);
232 PrintAndLog("DEZ 10 : %010lld",id
& 0xFFFFFF);
233 PrintAndLog("DEZ 5.5 : %05lld.%05lld",(id
>>16LL) & 0xFFFF,(id
& 0xFFFF));
234 PrintAndLog("DEZ 3.5A : %03lld.%05lld",(id
>>32ll),(id
& 0xFFFF));
235 PrintAndLog("DEZ 14/IK2 : %014lld",id
);
236 PrintAndLog("DEZ 15/IK3 : %015lld",id2lo
);
237 PrintAndLog("Other : %05lld_%03lld_%08lld",(id
&0xFFFF),((id
>>16LL) & 0xFF),(id
& 0xFFFFFF));
243 //take binary from demod buffer and see if we can find an EM410x ID
244 int CmdEm410xDecode(const char *Cmd
)
247 size_t size
= DemodBufferLen
, idx
=0;
248 id
= Em410xDecode(DemodBuffer
, &size
, &idx
);
250 setDemodBuf(DemodBuffer
, size
, idx
);
252 PrintAndLog("DEBUG: Printing demod buffer:");
263 //takes 2 arguments - clock and invert both as integers
264 //attempts to demodulate ask while decoding manchester
265 //prints binary found and saves in graphbuffer for further commands
266 int Cmdaskmandemod(const char *Cmd
)
270 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
271 sscanf(Cmd
, "%i %i", &clk
, &invert
);
272 if (invert
!= 0 && invert
!= 1) {
273 PrintAndLog("Invalid argument: %s", Cmd
);
277 size_t BitLen
= getFromGraphBuf(BitStream
);
278 if (g_debugMode
==1) PrintAndLog("DEBUG: Bitlen from grphbuff: %d",BitLen
);
280 errCnt
= askmandemod(BitStream
, &BitLen
,&clk
,&invert
);
281 if (errCnt
<0||BitLen
<16){ //if fatal error (or -1)
282 if (g_debugMode
==1) PrintAndLog("no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt
,invert
,BitLen
,clk
);
285 PrintAndLog("\nUsing Clock: %d - Invert: %d - Bits Found: %d",clk
,invert
,BitLen
);
289 PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt
);
291 PrintAndLog("ASK/Manchester decoded bitstream:");
292 // Now output the bitstream to the scrollback by line of 16 bits
293 setDemodBuf(BitStream
,BitLen
,0);
297 lo
= Em410xDecode(BitStream
, &BitLen
, &idx
);
299 //set GraphBuffer for clone or sim command
300 setDemodBuf(BitStream
, BitLen
, idx
);
302 PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx
, BitLen
);
305 PrintAndLog("EM410x pattern found: ");
314 //stricktly take 10 and 01 and convert to 0 and 1
315 int Cmdmandecoderaw(const char *Cmd
)
320 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
322 for (;i
<DemodBufferLen
;++i
){
323 if (DemodBuffer
[i
]>high
) high
=DemodBuffer
[i
];
324 else if(DemodBuffer
[i
]<low
) low
=DemodBuffer
[i
];
325 BitStream
[i
]=DemodBuffer
[i
];
327 if (high
>1 || low
<0 ){
328 PrintAndLog("Error: please raw demod the wave first then mancheseter raw decode");
332 errCnt
=manrawdecode(BitStream
, &size
);
334 PrintAndLog("Too many errors: %d",errCnt
);
337 PrintAndLog("Manchester Decoded - # errors:%d - data:",errCnt
);
338 printBitStream(BitStream
, size
);
342 id
= Em410xDecode(BitStream
, &size
, &idx
);
344 //need to adjust to set bitstream back to manchester encoded data
345 //setDemodBuf(BitStream, size, idx);
355 //take 01 or 10 = 0 and 11 or 00 = 1
356 //takes 2 arguments "offset" default = 0 if 1 it will shift the decode by one bit
357 // and "invert" default = 0 if 1 it will invert output
358 // since it is not like manchester and doesn't have an incorrect bit pattern we
359 // cannot determine if our decode is correct or if it should be shifted by one bit
360 // the argument offset allows us to manually shift if the output is incorrect
361 // (better would be to demod and decode at the same time so we can distinguish large
362 // width waves vs small width waves to help the decode positioning) or askbiphdemod
363 int CmdBiphaseDecodeRaw(const char *Cmd
)
371 sscanf(Cmd
, "%i %i", &offset
, &invert
);
372 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
373 //get graphbuffer & high and low
374 for (;i
<DemodBufferLen
;++i
){
375 if(DemodBuffer
[i
]>high
)high
=DemodBuffer
[i
];
376 else if(DemodBuffer
[i
]<low
)low
=DemodBuffer
[i
];
377 BitStream
[i
]=DemodBuffer
[i
];
379 if (high
>1 || low
<0){
380 PrintAndLog("Error: please raw demod the wave first then decode");
384 errCnt
=BiphaseRawDecode(BitStream
, &size
, offset
, invert
);
386 PrintAndLog("Too many errors attempting to decode: %d",errCnt
);
389 PrintAndLog("Biphase Decoded using offset: %d - # errors:%d - data:",offset
,errCnt
);
390 printBitStream(BitStream
, size
);
391 PrintAndLog("\nif bitstream does not look right try offset=1");
396 //takes 2 arguments - clock and invert both as integers
397 //attempts to demodulate ask only
398 //prints binary found and saves in graphbuffer for further commands
399 int Cmdaskrawdemod(const char *Cmd
)
403 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
404 sscanf(Cmd
, "%i %i", &clk
, &invert
);
405 if (invert
!= 0 && invert
!= 1) {
406 PrintAndLog("Invalid argument: %s", Cmd
);
409 size_t BitLen
= getFromGraphBuf(BitStream
);
411 errCnt
= askrawdemod(BitStream
, &BitLen
,&clk
,&invert
);
412 if (errCnt
==-1||BitLen
<16){ //throw away static - allow 1 and -1 (in case of threshold command first)
413 PrintAndLog("no data found");
414 if (g_debugMode
==1) PrintAndLog("errCnt: %d, BitLen: %d, clk: %d, invert: %d", errCnt
, BitLen
, clk
, invert
);
417 PrintAndLog("Using Clock: %d - invert: %d - Bits Found: %d",clk
,invert
,BitLen
);
419 //move BitStream back to DemodBuffer
420 setDemodBuf(BitStream
,BitLen
,0);
424 PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt
);
426 PrintAndLog("ASK demoded bitstream:");
427 // Now output the bitstream to the scrollback by line of 16 bits
428 printBitStream(BitStream
,BitLen
);
433 int CmdAutoCorr(const char *Cmd
)
435 static int CorrelBuffer
[MAX_GRAPH_TRACE_LEN
];
437 int window
= atoi(Cmd
);
440 PrintAndLog("needs a window");
443 if (window
>= GraphTraceLen
) {
444 PrintAndLog("window must be smaller than trace (%d samples)",
449 PrintAndLog("performing %d correlations", GraphTraceLen
- window
);
451 for (int i
= 0; i
< GraphTraceLen
- window
; ++i
) {
453 for (int j
= 0; j
< window
; ++j
) {
454 sum
+= (GraphBuffer
[j
]*GraphBuffer
[i
+ j
]) / 256;
456 CorrelBuffer
[i
] = sum
;
458 GraphTraceLen
= GraphTraceLen
- window
;
459 memcpy(GraphBuffer
, CorrelBuffer
, GraphTraceLen
* sizeof (int));
461 RepaintGraphWindow();
465 int CmdBitsamples(const char *Cmd
)
470 GetFromBigBuf(got
,sizeof(got
),0);
471 WaitForResponse(CMD_ACK
,NULL
);
473 for (int j
= 0; j
< sizeof(got
); j
++) {
474 for (int k
= 0; k
< 8; k
++) {
475 if(got
[j
] & (1 << (7 - k
))) {
476 GraphBuffer
[cnt
++] = 1;
478 GraphBuffer
[cnt
++] = 0;
483 RepaintGraphWindow();
488 * Convert to a bitstream
490 int CmdBitstream(const char *Cmd
)
498 int hithigh
, hitlow
, first
;
500 /* Detect high and lows and clock */
501 for (i
= 0; i
< GraphTraceLen
; ++i
)
503 if (GraphBuffer
[i
] > high
)
504 high
= GraphBuffer
[i
];
505 else if (GraphBuffer
[i
] < low
)
506 low
= GraphBuffer
[i
];
510 clock
= GetClock(Cmd
, high
, 1);
514 for (i
= 0; i
< (int)(gtl
/ clock
); ++i
)
519 /* Find out if we hit both high and low peaks */
520 for (j
= 0; j
< clock
; ++j
)
522 if (GraphBuffer
[(i
* clock
) + j
] == high
)
524 else if (GraphBuffer
[(i
* clock
) + j
] == low
)
526 /* it doesn't count if it's the first part of our read
527 because it's really just trailing from the last sequence */
528 if (first
&& (hithigh
|| hitlow
))
529 hithigh
= hitlow
= 0;
533 if (hithigh
&& hitlow
)
537 /* If we didn't hit both high and low peaks, we had a bit transition */
538 if (!hithigh
|| !hitlow
)
541 AppendGraph(0, clock
, bit
);
544 RepaintGraphWindow();
548 int CmdBuffClear(const char *Cmd
)
550 UsbCommand c
= {CMD_BUFF_CLEAR
};
556 int CmdDec(const char *Cmd
)
558 for (int i
= 0; i
< (GraphTraceLen
/ 2); ++i
)
559 GraphBuffer
[i
] = GraphBuffer
[i
* 2];
561 PrintAndLog("decimated by 2");
562 RepaintGraphWindow();
566 * Undecimate - I'd call it 'interpolate', but we'll save that
567 * name until someone does an actual interpolation command, not just
568 * blindly repeating samples
572 int CmdUndec(const char *Cmd
)
574 if(param_getchar(Cmd
, 0) == 'h')
576 PrintAndLog("Usage: data undec [factor]");
577 PrintAndLog("This function performs un-decimation, by repeating each sample N times");
578 PrintAndLog("Options: ");
579 PrintAndLog(" h This help");
580 PrintAndLog(" factor The number of times to repeat each sample.[default:2]");
581 PrintAndLog("Example: 'data undec 3'");
585 uint8_t factor
= param_get8ex(Cmd
, 0,2, 10);
586 //We have memory, don't we?
587 int swap
[MAX_GRAPH_TRACE_LEN
] = { 0 };
588 uint32_t g_index
= 0 ,s_index
= 0;
589 while(g_index
< GraphTraceLen
&& s_index
< MAX_GRAPH_TRACE_LEN
)
592 for(count
= 0; count
< factor
&& s_index
+count
< MAX_GRAPH_TRACE_LEN
; count
++)
593 swap
[s_index
+count
] = GraphBuffer
[g_index
];
597 memcpy(GraphBuffer
,swap
, s_index
* sizeof(int));
598 GraphTraceLen
= s_index
;
599 RepaintGraphWindow();
604 //shift graph zero up or down based on input + or -
605 int CmdGraphShiftZero(const char *Cmd
)
609 //set options from parameters entered with the command
610 sscanf(Cmd
, "%i", &shift
);
612 for(int i
= 0; i
<GraphTraceLen
; i
++){
613 shiftedVal
=GraphBuffer
[i
]+shift
;
616 else if (shiftedVal
<-127)
618 GraphBuffer
[i
]= shiftedVal
;
624 /* Print our clock rate */
625 // uses data from graphbuffer
626 int CmdDetectClockRate(const char *Cmd
)
629 //int clock = DetectASKClock(0);
630 //PrintAndLog("Auto-detected clock rate: %d", clock);
635 //fsk raw demod and print binary
636 //takes 4 arguments - Clock, invert, rchigh, rclow
637 //defaults: clock = 50, invert=0, rchigh=10, rclow=8 (RF/10 RF/8 (fsk2a))
638 int CmdFSKrawdemod(const char *Cmd
)
640 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
646 //set options from parameters entered with the command
647 sscanf(Cmd
, "%i %i %i %i", &rfLen
, &invert
, &fchigh
, &fclow
);
649 if (strlen(Cmd
)>0 && strlen(Cmd
)<=2) {
651 invert
=1; //if invert option only is used
656 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
657 size_t BitLen
= getFromGraphBuf(BitStream
);
658 //get field clock lengths
660 if (fchigh
==0 || fclow
== 0){
661 fcs
=countFC(BitStream
, BitLen
);
666 fchigh
= (fcs
>> 8) & 0xFF;
670 //get bit clock length
672 rfLen
= detectFSKClk(BitStream
, BitLen
, fchigh
, fclow
);
673 if (rfLen
== 0) rfLen
= 50;
675 PrintAndLog("Args invert: %d - Clock:%d - fchigh:%d - fclow: %d",invert
,rfLen
,fchigh
, fclow
);
676 int size
= fskdemod(BitStream
,BitLen
,(uint8_t)rfLen
,(uint8_t)invert
,(uint8_t)fchigh
,(uint8_t)fclow
);
678 PrintAndLog("FSK decoded bitstream:");
679 setDemodBuf(BitStream
,size
,0);
681 // Now output the bitstream to the scrollback by line of 16 bits
682 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
683 printBitStream(BitStream
,size
);
685 PrintAndLog("no FSK data found");
690 //by marshmellow (based on existing demod + holiman's refactor)
691 //HID Prox demod - FSK RF/50 with preamble of 00011101 (then manchester encoded)
692 //print full HID Prox ID and some bit format details if found
693 int CmdFSKdemodHID(const char *Cmd
)
695 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
696 uint32_t hi2
=0, hi
=0, lo
=0;
698 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
699 size_t BitLen
= getFromGraphBuf(BitStream
);
700 //get binary from fsk wave
701 int idx
= HIDdemodFSK(BitStream
,&BitLen
,&hi2
,&hi
,&lo
);
705 PrintAndLog("DEBUG: Just Noise Detected");
706 } else if (idx
== -2) {
707 PrintAndLog("DEBUG: Error demoding fsk");
708 } else if (idx
== -3) {
709 PrintAndLog("DEBUG: Preamble not found");
710 } else if (idx
== -4) {
711 PrintAndLog("DEBUG: Error in Manchester data, SIZE: %d", BitLen
);
713 PrintAndLog("DEBUG: Error demoding fsk %d", idx
);
718 if (hi2
==0 && hi
==0 && lo
==0) {
719 if (g_debugMode
) PrintAndLog("DEBUG: Error - no values found");
722 if (hi2
!= 0){ //extra large HID tags
723 PrintAndLog("HID Prox TAG ID: %x%08x%08x (%d)",
724 (unsigned int) hi2
, (unsigned int) hi
, (unsigned int) lo
, (unsigned int) (lo
>>1) & 0xFFFF);
726 else { //standard HID tags <38 bits
729 uint32_t cardnum
= 0;
730 if (((hi
>>5)&1)==1){//if bit 38 is set then < 37 bit format is used
732 lo2
=(((hi
& 31) << 12) | (lo
>>20)); //get bits 21-37 to check for format len bit
734 while(lo2
>1){ //find last bit set to 1 (format len bit)
742 cardnum
= (lo
>>1)&0xFFFF;
746 cardnum
= (lo
>>1)&0xFFFF;
747 fc
= ((hi
&1)<<15)|(lo
>>17);
750 cardnum
= (lo
>>1)&0xFFFFF;
751 fc
= ((hi
&1)<<11)|(lo
>>21);
754 else { //if bit 38 is not set then 37 bit format is used
759 cardnum
= (lo
>>1)&0x7FFFF;
760 fc
= ((hi
&0xF)<<12)|(lo
>>20);
763 PrintAndLog("HID Prox TAG ID: %x%08x (%d) - Format Len: %dbit - FC: %d - Card: %d",
764 (unsigned int) hi
, (unsigned int) lo
, (unsigned int) (lo
>>1) & 0xFFFF,
765 (unsigned int) fmtLen
, (unsigned int) fc
, (unsigned int) cardnum
);
767 setDemodBuf(BitStream
,BitLen
,idx
);
769 PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx
, BitLen
);
776 //Paradox Prox demod - FSK RF/50 with preamble of 00001111 (then manchester encoded)
777 //print full Paradox Prox ID and some bit format details if found
778 int CmdFSKdemodParadox(const char *Cmd
)
780 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
781 uint32_t hi2
=0, hi
=0, lo
=0;
783 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
784 size_t BitLen
= getFromGraphBuf(BitStream
);
785 //get binary from fsk wave
786 int idx
= ParadoxdemodFSK(BitStream
,&BitLen
,&hi2
,&hi
,&lo
);
790 PrintAndLog("DEBUG: Just Noise Detected");
791 } else if (idx
== -2) {
792 PrintAndLog("DEBUG: Error demoding fsk");
793 } else if (idx
== -3) {
794 PrintAndLog("DEBUG: Preamble not found");
795 } else if (idx
== -4) {
796 PrintAndLog("DEBUG: Error in Manchester data");
798 PrintAndLog("DEBUG: Error demoding fsk %d", idx
);
803 if (hi2
==0 && hi
==0 && lo
==0){
804 if (g_debugMode
) PrintAndLog("DEBUG: Error - no value found");
807 uint32_t fc
= ((hi
& 0x3)<<6) | (lo
>>26);
808 uint32_t cardnum
= (lo
>>10)&0xFFFF;
810 PrintAndLog("Paradox TAG ID: %x%08x - FC: %d - Card: %d - Checksum: %02x",
811 hi
>>10, (hi
& 0x3)<<26 | (lo
>>10), fc
, cardnum
, (lo
>>2) & 0xFF );
812 setDemodBuf(BitStream
,BitLen
,idx
);
814 PrintAndLog("DEBUG: idx: %d, len: %d, Printing Demod Buffer:", idx
, BitLen
);
822 //IO-Prox demod - FSK RF/64 with preamble of 000000001
823 //print ioprox ID and some format details
824 int CmdFSKdemodIO(const char *Cmd
)
826 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
829 //something in graphbuffer?
830 if (GraphTraceLen
< 65) {
831 if (g_debugMode
)PrintAndLog("DEBUG: not enough samples in GraphBuffer");
834 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
835 size_t BitLen
= getFromGraphBuf(BitStream
);
837 //get binary from fsk wave
838 idx
= IOdemodFSK(BitStream
,BitLen
);
842 PrintAndLog("DEBUG: Just Noise Detected");
843 } else if (idx
== -2) {
844 PrintAndLog("DEBUG: not enough samples");
845 } else if (idx
== -3) {
846 PrintAndLog("DEBUG: error during fskdemod");
847 } else if (idx
== -4) {
848 PrintAndLog("DEBUG: Preamble not found");
849 } else if (idx
== -5) {
850 PrintAndLog("DEBUG: Separator bits not found");
852 PrintAndLog("DEBUG: Error demoding fsk %d", idx
);
859 PrintAndLog("DEBUG: IO Prox Data not found - FSK Bits: %d",BitLen
);
860 if (BitLen
> 92) printBitStream(BitStream
,92);
865 //0 10 20 30 40 50 60
867 //01234567 8 90123456 7 89012345 6 78901234 5 67890123 4 56789012 3 45678901 23
868 //-----------------------------------------------------------------------------
869 //00000000 0 11110000 1 facility 1 version* 1 code*one 1 code*two 1 ???????? 11
871 //XSF(version)facility:codeone+codetwo (raw)
874 if (g_debugMode
==1) PrintAndLog("not enough bits found - bitlen: %d",BitLen
);
877 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]);
878 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]);
879 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]);
880 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]);
881 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]);
882 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]);
883 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]);
885 uint32_t code
= bytebits_to_byte(BitStream
+idx
,32);
886 uint32_t code2
= bytebits_to_byte(BitStream
+idx
+32,32);
887 uint8_t version
= bytebits_to_byte(BitStream
+idx
+27,8); //14,4
888 uint8_t facilitycode
= bytebits_to_byte(BitStream
+idx
+18,8) ;
889 uint16_t number
= (bytebits_to_byte(BitStream
+idx
+36,8)<<8)|(bytebits_to_byte(BitStream
+idx
+45,8)); //36,9
890 PrintAndLog("IO Prox XSF(%02d)%02x:%05d (%08x%08x)",version
,facilitycode
,number
,code
,code2
);
891 setDemodBuf(BitStream
,64,idx
);
893 PrintAndLog("DEBUG: idx: %d, Len: %d, Printing demod buffer:",idx
,64);
901 //AWID Prox demod - FSK RF/50 with preamble of 00000001 (always a 96 bit data stream)
902 //print full AWID Prox ID and some bit format details if found
903 int CmdFSKdemodAWID(const char *Cmd
)
907 //sscanf(Cmd, "%i", &verbose);
909 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
910 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
911 size_t size
= getFromGraphBuf(BitStream
);
913 //get binary from fsk wave
914 int idx
= AWIDdemodFSK(BitStream
, &size
);
918 PrintAndLog("DEBUG: Error - not enough samples");
920 PrintAndLog("DEBUG: Error - only noise found");
922 PrintAndLog("DEBUG: Error - problem during FSK demod");
923 // else if (idx == -3)
924 // PrintAndLog("Error: thought we had a tag but the parity failed");
926 PrintAndLog("DEBUG: Error - AWID preamble not found");
928 PrintAndLog("DEBUG: Error - Size not correct: %d", size
);
930 PrintAndLog("DEBUG: Error %d",idx
);
936 // 0 10 20 30 40 50 60
938 // 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
939 // -----------------------------------------------------------------------------
940 // 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
941 // 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
942 // |---26 bit---| |-----117----||-------------142-------------|
943 // b = format bit len, o = odd parity of last 3 bits
944 // f = facility code, c = card number
945 // w = wiegand parity
946 // (26 bit format shown)
948 //get raw ID before removing parities
949 uint32_t rawLo
= bytebits_to_byte(BitStream
+idx
+64,32);
950 uint32_t rawHi
= bytebits_to_byte(BitStream
+idx
+32,32);
951 uint32_t rawHi2
= bytebits_to_byte(BitStream
+idx
,32);
952 setDemodBuf(BitStream
,96,idx
);
954 size
= removeParity(BitStream
, idx
+8, 4, 1, 88);
956 if (g_debugMode
==1) PrintAndLog("DEBUG: Error - at parity check-tag size does not match AWID format");
959 // ok valid card found!
962 // 0 10 20 30 40 50 60
964 // 01234567 8 90123456 7890123456789012 3 456789012345678901234567890123456
965 // -----------------------------------------------------------------------------
966 // 00011010 1 01110101 0000000010001110 1 000000000000000000000000000000000
967 // bbbbbbbb w ffffffff cccccccccccccccc w xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
968 // |26 bit| |-117--| |-----142------|
969 // b = format bit len, o = odd parity of last 3 bits
970 // f = facility code, c = card number
971 // w = wiegand parity
972 // (26 bit format shown)
975 uint32_t cardnum
= 0;
978 uint8_t fmtLen
= bytebits_to_byte(BitStream
,8);
980 fc
= bytebits_to_byte(BitStream
+9, 8);
981 cardnum
= bytebits_to_byte(BitStream
+17, 16);
982 code1
= bytebits_to_byte(BitStream
+8,fmtLen
);
983 PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %x%08x%08x", fmtLen
, fc
, cardnum
, code1
, rawHi2
, rawHi
, rawLo
);
985 cardnum
= bytebits_to_byte(BitStream
+8+(fmtLen
-17), 16);
987 code1
= bytebits_to_byte(BitStream
+8,fmtLen
-32);
988 code2
= bytebits_to_byte(BitStream
+8+(fmtLen
-32),32);
989 PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x%08x, Raw: %x%08x%08x", fmtLen
, cardnum
, code1
, code2
, rawHi2
, rawHi
, rawLo
);
991 code1
= bytebits_to_byte(BitStream
+8,fmtLen
);
992 PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x, Raw: %x%08x%08x", fmtLen
, cardnum
, code1
, rawHi2
, rawHi
, rawLo
);
996 PrintAndLog("DEBUG: idx: %d, Len: %d Printing Demod Buffer:", idx
, 96);
999 //todo - convert hi2, hi, lo to demodbuffer for future sim/clone commands
1004 //Pyramid Prox demod - FSK RF/50 with preamble of 0000000000000001 (always a 128 bit data stream)
1005 //print full Farpointe Data/Pyramid Prox ID and some bit format details if found
1006 int CmdFSKdemodPyramid(const char *Cmd
)
1008 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1009 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
1010 size_t size
= getFromGraphBuf(BitStream
);
1012 //get binary from fsk wave
1013 int idx
= PyramiddemodFSK(BitStream
, &size
);
1015 if (g_debugMode
==1){
1017 PrintAndLog("DEBUG: Error - not enough samples");
1019 PrintAndLog("DEBUG: Error - only noise found");
1021 PrintAndLog("DEBUG: Error - problem during FSK demod");
1023 PrintAndLog("DEBUG: Error - Size not correct: %d", size
);
1025 PrintAndLog("DEBUG: Error - Pyramid preamble not found");
1027 PrintAndLog("DEBUG: Error - idx: %d",idx
);
1032 // 0 10 20 30 40 50 60
1034 // 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3
1035 // -----------------------------------------------------------------------------
1036 // 0000000 0 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1
1037 // premable xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o
1039 // 64 70 80 90 100 110 120
1041 // 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7
1042 // -----------------------------------------------------------------------------
1043 // 0000000 1 0000000 1 0000000 1 0110111 0 0011000 1 0000001 0 0001100 1 1001010 0
1044 // xxxxxxx o xxxxxxx o xxxxxxx o xswffff o ffffccc o ccccccc o ccccccw o ppppppp o
1045 // |---115---||---------71---------|
1046 // s = format start bit, o = odd parity of last 7 bits
1047 // f = facility code, c = card number
1048 // w = wiegand parity, x = extra space for other formats
1049 // p = unknown checksum
1050 // (26 bit format shown)
1052 //get raw ID before removing parities
1053 uint32_t rawLo
= bytebits_to_byte(BitStream
+idx
+96,32);
1054 uint32_t rawHi
= bytebits_to_byte(BitStream
+idx
+64,32);
1055 uint32_t rawHi2
= bytebits_to_byte(BitStream
+idx
+32,32);
1056 uint32_t rawHi3
= bytebits_to_byte(BitStream
+idx
,32);
1057 setDemodBuf(BitStream
,128,idx
);
1059 size
= removeParity(BitStream
, idx
+8, 8, 1, 120);
1061 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
);
1065 // ok valid card found!
1068 // 0 10 20 30 40 50 60 70
1070 // 01234567890123456789012345678901234567890123456789012345678901234567890
1071 // -----------------------------------------------------------------------
1072 // 00000000000000000000000000000000000000000000000000000000000000000000000
1073 // xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
1077 // 1 2 34567890 1234567890123456 7 8901234
1078 // ---------------------------------------
1079 // 1 1 01110011 0000000001000110 0 1001010
1080 // s w ffffffff cccccccccccccccc w ppppppp
1081 // |--115-| |------71------|
1082 // s = format start bit, o = odd parity of last 7 bits
1083 // f = facility code, c = card number
1084 // w = wiegand parity, x = extra space for other formats
1085 // p = unknown checksum
1086 // (26 bit format shown)
1088 //find start bit to get fmtLen
1090 for (j
=0; j
<size
; j
++){
1091 if(BitStream
[j
]) break;
1093 uint8_t fmtLen
= size
-j
-8;
1095 uint32_t cardnum
= 0;
1097 //uint32_t code2 = 0;
1099 fc
= bytebits_to_byte(BitStream
+73, 8);
1100 cardnum
= bytebits_to_byte(BitStream
+81, 16);
1101 code1
= bytebits_to_byte(BitStream
+72,fmtLen
);
1102 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
);
1103 } else if (fmtLen
==45){
1104 fmtLen
=42; //end = 10 bits not 7 like 26 bit fmt
1105 fc
= bytebits_to_byte(BitStream
+53, 10);
1106 cardnum
= bytebits_to_byte(BitStream
+63, 32);
1107 PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Raw: %x%08x%08x%08x", fmtLen
, fc
, cardnum
, rawHi3
, rawHi2
, rawHi
, rawLo
);
1109 cardnum
= bytebits_to_byte(BitStream
+81, 16);
1111 //code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen-32);
1112 //code2 = bytebits_to_byte(BitStream+(size-32),32);
1113 PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %x%08x%08x%08x", fmtLen
, cardnum
, rawHi3
, rawHi2
, rawHi
, rawLo
);
1115 //code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen);
1116 PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %x%08x%08x%08x", fmtLen
, cardnum
, rawHi3
, rawHi2
, rawHi
, rawLo
);
1120 PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx
, 128);
1126 int CmdFSKdemod(const char *Cmd
) //old CmdFSKdemod needs updating
1128 static const int LowTone
[] = {
1129 1, 1, 1, 1, 1, -1, -1, -1, -1, -1,
1130 1, 1, 1, 1, 1, -1, -1, -1, -1, -1,
1131 1, 1, 1, 1, 1, -1, -1, -1, -1, -1,
1132 1, 1, 1, 1, 1, -1, -1, -1, -1, -1,
1133 1, 1, 1, 1, 1, -1, -1, -1, -1, -1
1135 static const int HighTone
[] = {
1136 1, 1, 1, 1, 1, -1, -1, -1, -1,
1137 1, 1, 1, 1, -1, -1, -1, -1,
1138 1, 1, 1, 1, -1, -1, -1, -1,
1139 1, 1, 1, 1, -1, -1, -1, -1,
1140 1, 1, 1, 1, -1, -1, -1, -1,
1141 1, 1, 1, 1, -1, -1, -1, -1, -1,
1144 int lowLen
= sizeof (LowTone
) / sizeof (int);
1145 int highLen
= sizeof (HighTone
) / sizeof (int);
1146 int convLen
= (highLen
> lowLen
) ? highLen
: lowLen
;
1147 uint32_t hi
= 0, lo
= 0;
1150 int minMark
= 0, maxMark
= 0;
1152 for (i
= 0; i
< GraphTraceLen
- convLen
; ++i
) {
1153 int lowSum
= 0, highSum
= 0;
1155 for (j
= 0; j
< lowLen
; ++j
) {
1156 lowSum
+= LowTone
[j
]*GraphBuffer
[i
+j
];
1158 for (j
= 0; j
< highLen
; ++j
) {
1159 highSum
+= HighTone
[j
] * GraphBuffer
[i
+ j
];
1161 lowSum
= abs(100 * lowSum
/ lowLen
);
1162 highSum
= abs(100 * highSum
/ highLen
);
1163 GraphBuffer
[i
] = (highSum
<< 16) | lowSum
;
1166 for(i
= 0; i
< GraphTraceLen
- convLen
- 16; ++i
) {
1167 int lowTot
= 0, highTot
= 0;
1168 // 10 and 8 are f_s divided by f_l and f_h, rounded
1169 for (j
= 0; j
< 10; ++j
) {
1170 lowTot
+= (GraphBuffer
[i
+j
] & 0xffff);
1172 for (j
= 0; j
< 8; j
++) {
1173 highTot
+= (GraphBuffer
[i
+ j
] >> 16);
1175 GraphBuffer
[i
] = lowTot
- highTot
;
1176 if (GraphBuffer
[i
] > maxMark
) maxMark
= GraphBuffer
[i
];
1177 if (GraphBuffer
[i
] < minMark
) minMark
= GraphBuffer
[i
];
1180 GraphTraceLen
-= (convLen
+ 16);
1181 RepaintGraphWindow();
1183 // Find bit-sync (3 lo followed by 3 high) (HID ONLY)
1184 int max
= 0, maxPos
= 0;
1185 for (i
= 0; i
< 6000; ++i
) {
1187 for (j
= 0; j
< 3 * lowLen
; ++j
) {
1188 dec
-= GraphBuffer
[i
+ j
];
1190 for (; j
< 3 * (lowLen
+ highLen
); ++j
) {
1191 dec
+= GraphBuffer
[i
+ j
];
1199 // place start of bit sync marker in graph
1200 GraphBuffer
[maxPos
] = maxMark
;
1201 GraphBuffer
[maxPos
+ 1] = minMark
;
1205 // place end of bit sync marker in graph
1206 GraphBuffer
[maxPos
] = maxMark
;
1207 GraphBuffer
[maxPos
+1] = minMark
;
1209 PrintAndLog("actual data bits start at sample %d", maxPos
);
1210 PrintAndLog("length %d/%d", highLen
, lowLen
);
1212 uint8_t bits
[46] = {0x00};
1214 // find bit pairs and manchester decode them
1215 for (i
= 0; i
< arraylen(bits
) - 1; ++i
) {
1217 for (j
= 0; j
< lowLen
; ++j
) {
1218 dec
-= GraphBuffer
[maxPos
+ j
];
1220 for (; j
< lowLen
+ highLen
; ++j
) {
1221 dec
+= GraphBuffer
[maxPos
+ j
];
1224 // place inter bit marker in graph
1225 GraphBuffer
[maxPos
] = maxMark
;
1226 GraphBuffer
[maxPos
+ 1] = minMark
;
1228 // hi and lo form a 64 bit pair
1229 hi
= (hi
<< 1) | (lo
>> 31);
1231 // store decoded bit as binary (in hi/lo) and text (in bits[])
1239 PrintAndLog("bits: '%s'", bits
);
1240 PrintAndLog("hex: %08x %08x", hi
, lo
);
1245 //attempt to detect the field clock and bit clock for FSK
1246 int CmdFSKfcDetect(const char *Cmd
)
1248 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
1249 size_t size
= getFromGraphBuf(BitStream
);
1251 uint16_t ans
= countFC(BitStream
, size
);
1253 if (g_debugMode
) PrintAndLog("DEBUG: No data found");
1257 fc1
= (ans
>> 8) & 0xFF;
1260 uint8_t rf1
= detectFSKClk(BitStream
, size
, fc1
, fc2
);
1262 if (g_debugMode
) PrintAndLog("DEBUG: Clock detect error");
1265 PrintAndLog("Detected Field Clocks: FC/%d, FC/%d - Bit Clock: RF/%d", fc1
, fc2
, rf1
);
1270 //attempt to detect the bit clock for PSK or NRZ modulations
1271 int CmdDetectNRZpskClockRate(const char *Cmd
)
1273 GetNRZpskClock("",0,0);
1278 //attempt to psk1 or nrz demod graph buffer
1279 //NOTE CURRENTLY RELIES ON PEAKS :(
1280 int PSKnrzDemod(const char *Cmd
, uint8_t verbose
)
1284 sscanf(Cmd
, "%i %i", &clk
, &invert
);
1285 if (invert
!= 0 && invert
!= 1) {
1286 PrintAndLog("Invalid argument: %s", Cmd
);
1289 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
1290 size_t BitLen
= getFromGraphBuf(BitStream
);
1292 errCnt
= pskNRZrawDemod(BitStream
, &BitLen
,&clk
,&invert
);
1293 if (errCnt
<0|| BitLen
<16){ //throw away static - allow 1 and -1 (in case of threshold command first)
1294 if (g_debugMode
==1) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk
,invert
,BitLen
,errCnt
);
1297 if (verbose
) PrintAndLog("Tried PSK/NRZ Demod using Clock: %d - invert: %d - Bits Found: %d",clk
,invert
,BitLen
);
1299 //prime demod buffer for output
1300 setDemodBuf(BitStream
,BitLen
,0);
1303 // Indala 26 bit decode
1305 // optional arguments - same as CmdpskNRZrawDemod (clock & invert)
1306 int CmdIndalaDecode(const char *Cmd
)
1310 ans
= PSKnrzDemod(Cmd
, 0);
1311 } else{ //default to RF/32
1312 ans
= PSKnrzDemod("32", 0);
1317 PrintAndLog("Error1: %d",ans
);
1321 ans
= indala26decode(DemodBuffer
,(size_t *) &DemodBufferLen
, &invert
);
1324 PrintAndLog("Error2: %d",ans
);
1327 char showbits
[251]={0x00};
1330 PrintAndLog("Had to invert bits");
1332 //convert UID to HEX
1333 uint32_t uid1
, uid2
, uid3
, uid4
, uid5
, uid6
, uid7
;
1337 PrintAndLog("BitLen: %d",DemodBufferLen
);
1338 if (DemodBufferLen
==64){
1339 for( idx
=0; idx
<64; idx
++) {
1340 uid1
=(uid1
<<1)|(uid2
>>31);
1341 if (DemodBuffer
[idx
] == 0) {
1350 PrintAndLog("Indala UID=%s (%x%08x)", showbits
, uid1
, uid2
);
1358 for( idx
=0; idx
<DemodBufferLen
; idx
++) {
1359 uid1
=(uid1
<<1)|(uid2
>>31);
1360 uid2
=(uid2
<<1)|(uid3
>>31);
1361 uid3
=(uid3
<<1)|(uid4
>>31);
1362 uid4
=(uid4
<<1)|(uid5
>>31);
1363 uid5
=(uid5
<<1)|(uid6
>>31);
1364 uid6
=(uid6
<<1)|(uid7
>>31);
1365 if (DemodBuffer
[idx
] == 0) {
1375 PrintAndLog("Indala UID=%s (%x%08x%08x%08x%08x%08x%08x)", showbits
, uid1
, uid2
, uid3
, uid4
, uid5
, uid6
, uid7
);
1378 PrintAndLog("DEBUG: printing demodbuffer:");
1385 //attempt to clean psk wave noise after a peak
1386 //NOTE RELIES ON PEAKS :(
1387 int CmdPskClean(const char *Cmd
)
1389 uint8_t bitStream
[MAX_GRAPH_TRACE_LEN
]={0};
1390 size_t bitLen
= getFromGraphBuf(bitStream
);
1391 pskCleanWave(bitStream
, bitLen
);
1392 setGraphBuf(bitStream
, bitLen
);
1397 // takes 2 arguments - clock and invert both as integers
1398 // attempts to demodulate psk only
1399 // prints binary found and saves in demodbuffer for further commands
1400 int CmdpskNRZrawDemod(const char *Cmd
)
1404 errCnt
= PSKnrzDemod(Cmd
, 1);
1407 if (g_debugMode
) PrintAndLog("Error demoding: %d",errCnt
);
1412 PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt
);
1413 PrintAndLog("PSK or NRZ demoded bitstream:");
1414 // Now output the bitstream to the scrollback by line of 16 bits
1418 PrintAndLog("PSK or NRZ demoded bitstream:");
1419 // Now output the bitstream to the scrollback by line of 16 bits
1427 // takes same args as cmdpsknrzrawdemod
1428 int CmdPSK2rawDemod(const char *Cmd
)
1431 errCnt
=PSKnrzDemod(Cmd
, 1);
1433 if (g_debugMode
) PrintAndLog("Error demoding: %d",errCnt
);
1436 psk1TOpsk2(DemodBuffer
, DemodBufferLen
);
1439 PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt
);
1440 PrintAndLog("PSK2 demoded bitstream:");
1441 // Now output the bitstream to the scrollback by line of 16 bits
1445 PrintAndLog("PSK2 demoded bitstream:");
1446 // Now output the bitstream to the scrollback by line of 16 bits
1452 int CmdGrid(const char *Cmd
)
1454 sscanf(Cmd
, "%i %i", &PlotGridX
, &PlotGridY
);
1455 PlotGridXdefault
= PlotGridX
;
1456 PlotGridYdefault
= PlotGridY
;
1457 RepaintGraphWindow();
1461 int CmdHexsamples(const char *Cmd
)
1466 char string_buf
[25];
1467 char* string_ptr
= string_buf
;
1468 uint8_t got
[BIGBUF_SIZE
];
1470 sscanf(Cmd
, "%i %i", &requested
, &offset
);
1472 /* if no args send something */
1473 if (requested
== 0) {
1476 if (offset
+ requested
> sizeof(got
)) {
1477 PrintAndLog("Tried to read past end of buffer, <bytes> + <offset> > %d", BIGBUF_SIZE
);
1481 GetFromBigBuf(got
,requested
,offset
);
1482 WaitForResponse(CMD_ACK
,NULL
);
1485 for (j
= 0; j
< requested
; j
++) {
1487 string_ptr
+= sprintf(string_ptr
, "%02x ", got
[j
]);
1489 *(string_ptr
- 1) = '\0'; // remove the trailing space
1490 PrintAndLog("%s", string_buf
);
1491 string_buf
[0] = '\0';
1492 string_ptr
= string_buf
;
1495 if (j
== requested
- 1 && string_buf
[0] != '\0') { // print any remaining bytes
1496 *(string_ptr
- 1) = '\0';
1497 PrintAndLog("%s", string_buf
);
1498 string_buf
[0] = '\0';
1504 int CmdHide(const char *Cmd
)
1510 int CmdHpf(const char *Cmd
)
1515 for (i
= 10; i
< GraphTraceLen
; ++i
)
1516 accum
+= GraphBuffer
[i
];
1517 accum
/= (GraphTraceLen
- 10);
1518 for (i
= 0; i
< GraphTraceLen
; ++i
)
1519 GraphBuffer
[i
] -= accum
;
1521 RepaintGraphWindow();
1530 bool _headBit( BitstreamOut
*stream
)
1532 int bytepos
= stream
->position
>> 3; // divide by 8
1533 int bitpos
= (stream
->position
++) & 7; // mask out 00000111
1534 return (*(stream
->buffer
+ bytepos
) >> (7-bitpos
)) & 1;
1537 uint8_t getByte(uint8_t bits_per_sample
, BitstreamOut
* b
)
1541 for(i
=0 ; i
< bits_per_sample
; i
++)
1543 val
|= (_headBit(b
) << (7-i
));
1548 int CmdSamples(const char *Cmd
)
1550 //If we get all but the last byte in bigbuf,
1551 // we don't have to worry about remaining trash
1552 // in the last byte in case the bits-per-sample
1553 // does not line up on byte boundaries
1554 uint8_t got
[BIGBUF_SIZE
-1] = { 0 };
1556 int n
= strtol(Cmd
, NULL
, 0);
1560 if (n
> sizeof(got
))
1563 PrintAndLog("Reading %d bytes from device memory\n", n
);
1564 GetFromBigBuf(got
,n
,0);
1565 PrintAndLog("Data fetched");
1566 UsbCommand response
;
1567 WaitForResponse(CMD_ACK
, &response
);
1568 uint8_t bits_per_sample
= 8;
1570 //Old devices without this feature would send 0 at arg[0]
1571 if(response
.arg
[0] > 0)
1573 sample_config
*sc
= (sample_config
*) response
.d
.asBytes
;
1574 PrintAndLog("Samples @ %d bits/smpl, decimation 1:%d ", sc
->bits_per_sample
1576 bits_per_sample
= sc
->bits_per_sample
;
1578 if(bits_per_sample
< 8)
1580 PrintAndLog("Unpacking...");
1581 BitstreamOut bout
= { got
, bits_per_sample
* n
, 0};
1583 for (j
= 0; j
* bits_per_sample
< n
* 8 && j
< sizeof(GraphBuffer
); j
++) {
1584 uint8_t sample
= getByte(bits_per_sample
, &bout
);
1585 GraphBuffer
[j
] = ((int) sample
)- 128;
1588 PrintAndLog("Unpacked %d samples" , j
);
1591 for (int j
= 0; j
< n
; j
++) {
1592 GraphBuffer
[j
] = ((int)got
[j
]) - 128;
1597 RepaintGraphWindow();
1601 int CmdTuneSamples(const char *Cmd
)
1604 printf("\nMeasuring antenna characteristics, please wait...");
1606 UsbCommand c
= {CMD_MEASURE_ANTENNA_TUNING
};
1610 while(!WaitForResponseTimeout(CMD_MEASURED_ANTENNA_TUNING
,&resp
,1000)) {
1614 PrintAndLog("\nNo response from Proxmark. Aborting...");
1620 int vLf125
, vLf134
, vHf
;
1621 vLf125
= resp
.arg
[0] & 0xffff;
1622 vLf134
= resp
.arg
[0] >> 16;
1623 vHf
= resp
.arg
[1] & 0xffff;;
1624 peakf
= resp
.arg
[2] & 0xffff;
1625 peakv
= resp
.arg
[2] >> 16;
1627 PrintAndLog("# LF antenna: %5.2f V @ 125.00 kHz", vLf125
/1000.0);
1628 PrintAndLog("# LF antenna: %5.2f V @ 134.00 kHz", vLf134
/1000.0);
1629 PrintAndLog("# LF optimal: %5.2f V @%9.2f kHz", peakv
/1000.0, 12000.0/(peakf
+1));
1630 PrintAndLog("# HF antenna: %5.2f V @ 13.56 MHz", vHf
/1000.0);
1632 PrintAndLog("# Your LF antenna is unusable.");
1633 else if (peakv
<10000)
1634 PrintAndLog("# Your LF antenna is marginal.");
1636 PrintAndLog("# Your HF antenna is unusable.");
1638 PrintAndLog("# Your HF antenna is marginal.");
1640 for (int i
= 0; i
< 256; i
++) {
1641 GraphBuffer
[i
] = resp
.d
.asBytes
[i
] - 128;
1644 PrintAndLog("Done! Divisor 89 is 134khz, 95 is 125khz.\n");
1646 GraphTraceLen
= 256;
1653 int CmdLoad(const char *Cmd
)
1655 char filename
[FILE_PATH_SIZE
] = {0x00};
1659 if (len
> FILE_PATH_SIZE
) len
= FILE_PATH_SIZE
;
1660 memcpy(filename
, Cmd
, len
);
1662 FILE *f
= fopen(filename
, "r");
1664 PrintAndLog("couldn't open '%s'", filename
);
1670 while (fgets(line
, sizeof (line
), f
)) {
1671 GraphBuffer
[GraphTraceLen
] = atoi(line
);
1675 PrintAndLog("loaded %d samples", GraphTraceLen
);
1676 RepaintGraphWindow();
1680 int CmdLtrim(const char *Cmd
)
1684 for (int i
= ds
; i
< GraphTraceLen
; ++i
)
1685 GraphBuffer
[i
-ds
] = GraphBuffer
[i
];
1686 GraphTraceLen
-= ds
;
1688 RepaintGraphWindow();
1692 // trim graph to input argument length
1693 int CmdRtrim(const char *Cmd
)
1699 RepaintGraphWindow();
1704 * Manchester demodulate a bitstream. The bitstream needs to be already in
1705 * the GraphBuffer as 0 and 1 values
1707 * Give the clock rate as argument in order to help the sync - the algorithm
1708 * resyncs at each pulse anyway.
1710 * Not optimized by any means, this is the 1st time I'm writing this type of
1711 * routine, feel free to improve...
1713 * 1st argument: clock rate (as number of samples per clock rate)
1714 * Typical values can be 64, 32, 128...
1716 int CmdManchesterDemod(const char *Cmd
)
1718 int i
, j
, invert
= 0;
1724 int hithigh
, hitlow
, first
;
1730 /* check if we're inverting output */
1733 PrintAndLog("Inverting output");
1738 while(*Cmd
== ' '); // in case a 2nd argument was given
1741 /* Holds the decoded bitstream: each clock period contains 2 bits */
1742 /* later simplified to 1 bit after manchester decoding. */
1743 /* Add 10 bits to allow for noisy / uncertain traces without aborting */
1744 /* int BitStream[GraphTraceLen*2/clock+10]; */
1746 /* But it does not work if compiling on WIndows: therefore we just allocate a */
1748 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
] = {0};
1750 /* Detect high and lows */
1751 for (i
= 0; i
< GraphTraceLen
; i
++)
1753 if (GraphBuffer
[i
] > high
)
1754 high
= GraphBuffer
[i
];
1755 else if (GraphBuffer
[i
] < low
)
1756 low
= GraphBuffer
[i
];
1760 clock
= GetClock(Cmd
, high
, 1);
1762 int tolerance
= clock
/4;
1764 /* Detect first transition */
1765 /* Lo-Hi (arbitrary) */
1766 /* skip to the first high */
1767 for (i
= 0; i
< GraphTraceLen
; i
++)
1768 if (GraphBuffer
[i
] == high
)
1770 /* now look for the first low */
1771 for (; i
< GraphTraceLen
; i
++)
1773 if (GraphBuffer
[i
] == low
)
1780 /* If we're not working with 1/0s, demod based off clock */
1783 bit
= 0; /* We assume the 1st bit is zero, it may not be
1784 * the case: this routine (I think) has an init problem.
1787 for (; i
< (int)(GraphTraceLen
/ clock
); i
++)
1793 /* Find out if we hit both high and low peaks */
1794 for (j
= 0; j
< clock
; j
++)
1796 if (GraphBuffer
[(i
* clock
) + j
] == high
)
1798 else if (GraphBuffer
[(i
* clock
) + j
] == low
)
1801 /* it doesn't count if it's the first part of our read
1802 because it's really just trailing from the last sequence */
1803 if (first
&& (hithigh
|| hitlow
))
1804 hithigh
= hitlow
= 0;
1808 if (hithigh
&& hitlow
)
1812 /* If we didn't hit both high and low peaks, we had a bit transition */
1813 if (!hithigh
|| !hitlow
)
1816 BitStream
[bit2idx
++] = bit
^ invert
;
1820 /* standard 1/0 bitstream */
1824 /* Then detect duration between 2 successive transitions */
1825 for (bitidx
= 1; i
< GraphTraceLen
; i
++)
1827 if (GraphBuffer
[i
-1] != GraphBuffer
[i
])
1832 // Error check: if bitidx becomes too large, we do not
1833 // have a Manchester encoded bitstream or the clock is really
1835 if (bitidx
> (GraphTraceLen
*2/clock
+8) ) {
1836 PrintAndLog("Error: the clock you gave is probably wrong, aborting.");
1839 // Then switch depending on lc length:
1840 // Tolerance is 1/4 of clock rate (arbitrary)
1841 if (abs(lc
-clock
/2) < tolerance
) {
1842 // Short pulse : either "1" or "0"
1843 BitStream
[bitidx
++]=GraphBuffer
[i
-1];
1844 } else if (abs(lc
-clock
) < tolerance
) {
1845 // Long pulse: either "11" or "00"
1846 BitStream
[bitidx
++]=GraphBuffer
[i
-1];
1847 BitStream
[bitidx
++]=GraphBuffer
[i
-1];
1851 PrintAndLog("Warning: Manchester decode error for pulse width detection.");
1852 PrintAndLog("(too many of those messages mean either the stream is not Manchester encoded, or clock is wrong)");
1856 PrintAndLog("Error: too many detection errors, aborting.");
1863 // At this stage, we now have a bitstream of "01" ("1") or "10" ("0"), parse it into final decoded bitstream
1864 // Actually, we overwrite BitStream with the new decoded bitstream, we just need to be careful
1865 // to stop output at the final bitidx2 value, not bitidx
1866 for (i
= 0; i
< bitidx
; i
+= 2) {
1867 if ((BitStream
[i
] == 0) && (BitStream
[i
+1] == 1)) {
1868 BitStream
[bit2idx
++] = 1 ^ invert
;
1869 } else if ((BitStream
[i
] == 1) && (BitStream
[i
+1] == 0)) {
1870 BitStream
[bit2idx
++] = 0 ^ invert
;
1872 // We cannot end up in this state, this means we are unsynchronized,
1876 PrintAndLog("Unsynchronized, resync...");
1877 PrintAndLog("(too many of those messages mean the stream is not Manchester encoded)");
1881 PrintAndLog("Error: too many decode errors, aborting.");
1888 PrintAndLog("Manchester decoded bitstream");
1889 // Now output the bitstream to the scrollback by line of 16 bits
1890 for (i
= 0; i
< (bit2idx
-16); i
+=16) {
1891 PrintAndLog("%i %i %i %i %i %i %i %i %i %i %i %i %i %i %i %i",
1912 /* Modulate our data into manchester */
1913 int CmdManchesterMod(const char *Cmd
)
1917 int bit
, lastbit
, wave
;
1920 clock
= GetClock(Cmd
, 0, 1);
1924 for (i
= 0; i
< (int)(GraphTraceLen
/ clock
); i
++)
1926 bit
= GraphBuffer
[i
* clock
] ^ 1;
1928 for (j
= 0; j
< (int)(clock
/2); j
++)
1929 GraphBuffer
[(i
* clock
) + j
] = bit
^ lastbit
^ wave
;
1930 for (j
= (int)(clock
/2); j
< clock
; j
++)
1931 GraphBuffer
[(i
* clock
) + j
] = bit
^ lastbit
^ wave
^ 1;
1933 /* Keep track of how we start our wave and if we changed or not this time */
1934 wave
^= bit
^ lastbit
;
1938 RepaintGraphWindow();
1942 int CmdNorm(const char *Cmd
)
1945 int max
= INT_MIN
, min
= INT_MAX
;
1947 for (i
= 10; i
< GraphTraceLen
; ++i
) {
1948 if (GraphBuffer
[i
] > max
)
1949 max
= GraphBuffer
[i
];
1950 if (GraphBuffer
[i
] < min
)
1951 min
= GraphBuffer
[i
];
1955 for (i
= 0; i
< GraphTraceLen
; ++i
) {
1956 GraphBuffer
[i
] = (GraphBuffer
[i
] - ((max
+ min
) / 2)) * 256 /
1958 //marshmelow: adjusted *1000 to *256 to make +/- 128 so demod commands still work
1961 RepaintGraphWindow();
1965 int CmdPlot(const char *Cmd
)
1971 int CmdSave(const char *Cmd
)
1973 char filename
[FILE_PATH_SIZE
] = {0x00};
1977 if (len
> FILE_PATH_SIZE
) len
= FILE_PATH_SIZE
;
1978 memcpy(filename
, Cmd
, len
);
1981 FILE *f
= fopen(filename
, "w");
1983 PrintAndLog("couldn't open '%s'", filename
);
1987 for (i
= 0; i
< GraphTraceLen
; i
++) {
1988 fprintf(f
, "%d\n", GraphBuffer
[i
]);
1991 PrintAndLog("saved to '%s'", Cmd
);
1995 int CmdScale(const char *Cmd
)
1997 CursorScaleFactor
= atoi(Cmd
);
1998 if (CursorScaleFactor
== 0) {
1999 PrintAndLog("bad, can't have zero scale");
2000 CursorScaleFactor
= 1;
2002 RepaintGraphWindow();
2006 int CmdThreshold(const char *Cmd
)
2008 int threshold
= atoi(Cmd
);
2010 for (int i
= 0; i
< GraphTraceLen
; ++i
) {
2011 if (GraphBuffer
[i
] >= threshold
)
2014 GraphBuffer
[i
] = -1;
2016 RepaintGraphWindow();
2020 int CmdDirectionalThreshold(const char *Cmd
)
2022 int8_t upThres
= param_get8(Cmd
, 0);
2023 int8_t downThres
= param_get8(Cmd
, 1);
2025 printf("Applying Up Threshold: %d, Down Threshold: %d\n", upThres
, downThres
);
2027 int lastValue
= GraphBuffer
[0];
2028 GraphBuffer
[0] = 0; // Will be changed at the end, but init 0 as we adjust to last samples value if no threshold kicks in.
2030 for (int i
= 1; i
< GraphTraceLen
; ++i
) {
2031 // Apply first threshold to samples heading up
2032 if (GraphBuffer
[i
] >= upThres
&& GraphBuffer
[i
] > lastValue
)
2034 lastValue
= GraphBuffer
[i
]; // Buffer last value as we overwrite it.
2037 // Apply second threshold to samples heading down
2038 else if (GraphBuffer
[i
] <= downThres
&& GraphBuffer
[i
] < lastValue
)
2040 lastValue
= GraphBuffer
[i
]; // Buffer last value as we overwrite it.
2041 GraphBuffer
[i
] = -1;
2045 lastValue
= GraphBuffer
[i
]; // Buffer last value as we overwrite it.
2046 GraphBuffer
[i
] = GraphBuffer
[i
-1];
2050 GraphBuffer
[0] = GraphBuffer
[1]; // Aline with first edited sample.
2051 RepaintGraphWindow();
2055 int CmdZerocrossings(const char *Cmd
)
2057 // Zero-crossings aren't meaningful unless the signal is zero-mean.
2064 for (int i
= 0; i
< GraphTraceLen
; ++i
) {
2065 if (GraphBuffer
[i
] * sign
>= 0) {
2066 // No change in sign, reproduce the previous sample count.
2068 GraphBuffer
[i
] = lastZc
;
2070 // Change in sign, reset the sample count.
2072 GraphBuffer
[i
] = lastZc
;
2080 RepaintGraphWindow();
2084 static command_t CommandTable
[] =
2086 {"help", CmdHelp
, 1, "This help"},
2087 {"amp", CmdAmp
, 1, "Amplify peaks"},
2088 {"askdemod", Cmdaskdemod
, 1, "<0 or 1> -- Attempt to demodulate simple ASK tags"},
2089 {"askmandemod", Cmdaskmandemod
, 1, "[clock] [invert<0|1>] -- Attempt to demodulate ASK/Manchester tags and output binary (args optional)"},
2090 {"askrawdemod", Cmdaskrawdemod
, 1, "[clock] [invert<0|1>] -- Attempt to demodulate ASK tags and output bin (args optional)"},
2091 {"autocorr", CmdAutoCorr
, 1, "<window length> -- Autocorrelation over window"},
2092 {"biphaserawdecode",CmdBiphaseDecodeRaw
,1,"[offset] [invert<0|1>] Biphase decode bin stream in demod buffer (offset = 0|1 bits to shift the decode start)"},
2093 {"bitsamples", CmdBitsamples
, 0, "Get raw samples as bitstring"},
2094 {"bitstream", CmdBitstream
, 1, "[clock rate] -- Convert waveform into a bitstream"},
2095 {"buffclear", CmdBuffClear
, 1, "Clear sample buffer and graph window"},
2096 {"dec", CmdDec
, 1, "Decimate samples"},
2097 {"detectclock", CmdDetectClockRate
, 1, "Detect ASK clock rate"},
2098 {"fskdemod", CmdFSKdemod
, 1, "Demodulate graph window as a HID FSK"},
2099 {"fskawiddemod", CmdFSKdemodAWID
, 1, "Demodulate graph window as an AWID FSK tag using raw"},
2100 {"fskfcdetect", CmdFSKfcDetect
, 1, "Try to detect the Field Clock of an FSK wave"},
2101 {"fskhiddemod", CmdFSKdemodHID
, 1, "Demodulate graph window as a HID FSK tag using raw"},
2102 {"fskiodemod", CmdFSKdemodIO
, 1, "Demodulate graph window as an IO Prox tag FSK using raw"},
2103 {"fskpyramiddemod",CmdFSKdemodPyramid
,1, "Demodulate graph window as a Pyramid FSK tag using raw"},
2104 {"fskparadoxdemod",CmdFSKdemodParadox
,1, "Demodulate graph window as a Paradox FSK tag using raw"},
2105 {"fskrawdemod", CmdFSKrawdemod
, 1, "[clock rate] [invert] [rchigh] [rclow] Demodulate graph window from FSK to bin (clock = 50)(invert = 1|0)(rchigh = 10)(rclow=8)"},
2106 {"grid", CmdGrid
, 1, "<x> <y> -- overlay grid on graph window, use zero value to turn off either"},
2107 {"hexsamples", CmdHexsamples
, 0, "<bytes> [<offset>] -- Dump big buffer as hex bytes"},
2108 {"hide", CmdHide
, 1, "Hide graph window"},
2109 {"hpf", CmdHpf
, 1, "Remove DC offset from trace"},
2110 {"load", CmdLoad
, 1, "<filename> -- Load trace (to graph window"},
2111 {"ltrim", CmdLtrim
, 1, "<samples> -- Trim samples from left of trace"},
2112 {"rtrim", CmdRtrim
, 1, "<location to end trace> -- Trim samples from right of trace"},
2113 {"mandemod", CmdManchesterDemod
, 1, "[i] [clock rate] -- Manchester demodulate binary stream (option 'i' to invert output)"},
2114 {"manrawdecode", Cmdmandecoderaw
, 1, "Manchester decode binary stream already in graph buffer"},
2115 {"manmod", CmdManchesterMod
, 1, "[clock rate] -- Manchester modulate a binary stream"},
2116 {"norm", CmdNorm
, 1, "Normalize max/min to +/-128"},
2117 {"plot", CmdPlot
, 1, "Show graph window (hit 'h' in window for keystroke help)"},
2118 {"pskclean", CmdPskClean
, 1, "Attempt to clean psk wave"},
2119 {"pskdetectclock",CmdDetectNRZpskClockRate
, 1, "Detect ASK, PSK, or NRZ clock rate"},
2120 {"pskindalademod",CmdIndalaDecode
, 1, "[clock] [invert<0|1>] -- Attempt to demodulate psk1 indala tags and output ID binary & hex (args optional)"},
2121 {"psk1nrzrawdemod",CmdpskNRZrawDemod
, 1, "[clock] [invert<0|1>] -- Attempt to demodulate psk1 or nrz tags and output binary (args optional)"},
2122 {"psk2rawdemod", CmdPSK2rawDemod
, 1, "[clock] [invert<0|1>] -- Attempt to demodulate psk2 tags and output binary (args optional)"},
2123 {"samples", CmdSamples
, 0, "[512 - 40000] -- Get raw samples for graph window"},
2124 {"save", CmdSave
, 1, "<filename> -- Save trace (from graph window)"},
2125 {"scale", CmdScale
, 1, "<int> -- Set cursor display scale"},
2126 {"setdebugmode", CmdSetDebugMode
, 1, "<0|1> -- Turn on or off Debugging Mode for demods"},
2127 {"shiftgraphzero",CmdGraphShiftZero
, 1, "<shift> -- Shift 0 for Graphed wave + or - shift value"},
2128 {"threshold", CmdThreshold
, 1, "<threshold> -- Maximize/minimize every value in the graph window depending on threshold"},
2129 {"dirthreshold", CmdDirectionalThreshold
, 1, "<thres up> <thres down> -- Max rising higher up-thres/ Min falling lower down-thres, keep rest as prev."},
2130 {"tune", CmdTuneSamples
, 0, "Get hw tune samples for graph window"},
2131 {"undec", CmdUndec
, 1, "Un-decimate samples by 2"},
2132 {"zerocrossings", CmdZerocrossings
, 1, "Count time between zero-crossings"},
2133 {NULL
, NULL
, 0, NULL
}
2136 int CmdData(const char *Cmd
)
2138 CmdsParse(CommandTable
, Cmd
);
2142 int CmdHelp(const char *Cmd
)
2144 CmdsHelp(CommandTable
);