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"
25 #include "data_operations.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 //take binary from demod buffer and see if we can find an EM410x ID
253 int CmdEm410xDecode(const char *Cmd
)
256 size_t size
= DemodBufferLen
, idx
=0;
257 id
= Em410xDecode(DemodBuffer
, &size
, &idx
);
259 setDemodBuf(DemodBuffer
, size
, idx
);
261 PrintAndLog("DEBUG: Printing demod buffer:");
272 //takes 2 arguments - clock and invert both as integers
273 //attempts to demodulate ask while decoding manchester
274 //prints binary found and saves in graphbuffer for further commands
275 int Cmdaskmandemod(const char *Cmd
)
279 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
280 sscanf(Cmd
, "%i %i", &clk
, &invert
);
281 if (invert
!= 0 && invert
!= 1) {
282 PrintAndLog("Invalid argument: %s", Cmd
);
286 size_t BitLen
= getFromGraphBuf(BitStream
);
287 if (g_debugMode
==1) PrintAndLog("DEBUG: Bitlen from grphbuff: %d",BitLen
);
289 errCnt
= askmandemod(BitStream
, &BitLen
,&clk
,&invert
);
290 if (errCnt
<0||BitLen
<16){ //if fatal error (or -1)
291 if (g_debugMode
==1) PrintAndLog("no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt
,invert
,BitLen
,clk
);
294 PrintAndLog("\nUsing Clock: %d - Invert: %d - Bits Found: %d",clk
,invert
,BitLen
);
298 PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt
);
300 PrintAndLog("ASK/Manchester decoded bitstream:");
301 // Now output the bitstream to the scrollback by line of 16 bits
302 setDemodBuf(BitStream
,BitLen
,0);
306 lo
= Em410xDecode(BitStream
, &BitLen
, &idx
);
308 //set GraphBuffer for clone or sim command
309 setDemodBuf(BitStream
, BitLen
, idx
);
311 PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx
, BitLen
);
314 PrintAndLog("EM410x pattern found: ");
323 //stricktly take 10 and 01 and convert to 0 and 1
324 int Cmdmandecoderaw(const char *Cmd
)
329 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
331 for (;i
<DemodBufferLen
;++i
){
332 if (DemodBuffer
[i
]>high
) high
=DemodBuffer
[i
];
333 else if(DemodBuffer
[i
]<low
) low
=DemodBuffer
[i
];
334 BitStream
[i
]=DemodBuffer
[i
];
336 if (high
>1 || low
<0 ){
337 PrintAndLog("Error: please raw demod the wave first then mancheseter raw decode");
341 errCnt
=manrawdecode(BitStream
, &size
);
343 PrintAndLog("Too many errors: %d",errCnt
);
346 PrintAndLog("Manchester Decoded - # errors:%d - data:",errCnt
);
347 printBitStream(BitStream
, size
);
351 id
= Em410xDecode(BitStream
, &size
, &idx
);
353 //need to adjust to set bitstream back to manchester encoded data
354 //setDemodBuf(BitStream, size, idx);
364 //take 01 or 10 = 0 and 11 or 00 = 1
365 //takes 2 arguments "offset" default = 0 if 1 it will shift the decode by one bit
366 // and "invert" default = 0 if 1 it will invert output
367 // since it is not like manchester and doesn't have an incorrect bit pattern we
368 // cannot determine if our decode is correct or if it should be shifted by one bit
369 // the argument offset allows us to manually shift if the output is incorrect
370 // (better would be to demod and decode at the same time so we can distinguish large
371 // width waves vs small width waves to help the decode positioning) or askbiphdemod
372 int CmdBiphaseDecodeRaw(const char *Cmd
)
380 sscanf(Cmd
, "%i %i", &offset
, &invert
);
381 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
382 //get graphbuffer & high and low
383 for (;i
<DemodBufferLen
;++i
){
384 if(DemodBuffer
[i
]>high
)high
=DemodBuffer
[i
];
385 else if(DemodBuffer
[i
]<low
)low
=DemodBuffer
[i
];
386 BitStream
[i
]=DemodBuffer
[i
];
388 if (high
>1 || low
<0){
389 PrintAndLog("Error: please raw demod the wave first then decode");
393 errCnt
=BiphaseRawDecode(BitStream
, &size
, offset
, invert
);
395 PrintAndLog("Too many errors attempting to decode: %d",errCnt
);
398 PrintAndLog("Biphase Decoded using offset: %d - # errors:%d - data:",offset
,errCnt
);
399 printBitStream(BitStream
, size
);
400 PrintAndLog("\nif bitstream does not look right try offset=1");
405 //takes 2 arguments - clock and invert both as integers
406 //attempts to demodulate ask only
407 //prints binary found and saves in graphbuffer for further commands
408 int Cmdaskrawdemod(const char *Cmd
)
412 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
413 sscanf(Cmd
, "%i %i", &clk
, &invert
);
414 if (invert
!= 0 && invert
!= 1) {
415 PrintAndLog("Invalid argument: %s", Cmd
);
418 size_t BitLen
= getFromGraphBuf(BitStream
);
420 errCnt
= askrawdemod(BitStream
, &BitLen
,&clk
,&invert
);
421 if (errCnt
==-1||BitLen
<16){ //throw away static - allow 1 and -1 (in case of threshold command first)
422 PrintAndLog("no data found");
423 if (g_debugMode
==1) PrintAndLog("errCnt: %d, BitLen: %d, clk: %d, invert: %d", errCnt
, BitLen
, clk
, invert
);
426 PrintAndLog("Using Clock: %d - invert: %d - Bits Found: %d",clk
,invert
,BitLen
);
428 //move BitStream back to DemodBuffer
429 setDemodBuf(BitStream
,BitLen
,0);
433 PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt
);
435 PrintAndLog("ASK demoded bitstream:");
436 // Now output the bitstream to the scrollback by line of 16 bits
437 printBitStream(BitStream
,BitLen
);
443 int CmdAutoCorr(const char *Cmd
)
445 int window
= atoi(Cmd
);
446 autoCorr(GraphBuffer
, GraphBuffer
,GraphTraceLen
,window
);
447 RepaintGraphWindow();
452 int CmdBitsamples(const char *Cmd
)
457 GetFromBigBuf(got
,sizeof(got
),0);
458 WaitForResponse(CMD_ACK
,NULL
);
460 for (int j
= 0; j
< sizeof(got
); j
++) {
461 for (int k
= 0; k
< 8; k
++) {
462 if(got
[j
] & (1 << (7 - k
))) {
463 GraphBuffer
[cnt
++] = 1;
465 GraphBuffer
[cnt
++] = 0;
470 RepaintGraphWindow();
475 * Convert to a bitstream
477 int CmdBitstream(const char *Cmd
)
485 int hithigh
, hitlow
, first
;
487 /* Detect high and lows and clock */
488 for (i
= 0; i
< GraphTraceLen
; ++i
)
490 if (GraphBuffer
[i
] > high
)
491 high
= GraphBuffer
[i
];
492 else if (GraphBuffer
[i
] < low
)
493 low
= GraphBuffer
[i
];
497 clock
= GetClock(Cmd
, high
, 1);
501 for (i
= 0; i
< (int)(gtl
/ clock
); ++i
)
506 /* Find out if we hit both high and low peaks */
507 for (j
= 0; j
< clock
; ++j
)
509 if (GraphBuffer
[(i
* clock
) + j
] == high
)
511 else if (GraphBuffer
[(i
* clock
) + j
] == low
)
513 /* it doesn't count if it's the first part of our read
514 because it's really just trailing from the last sequence */
515 if (first
&& (hithigh
|| hitlow
))
516 hithigh
= hitlow
= 0;
520 if (hithigh
&& hitlow
)
524 /* If we didn't hit both high and low peaks, we had a bit transition */
525 if (!hithigh
|| !hitlow
)
528 AppendGraph(0, clock
, bit
);
531 RepaintGraphWindow();
535 int CmdBuffClear(const char *Cmd
)
537 UsbCommand c
= {CMD_BUFF_CLEAR
};
543 int CmdDec(const char *Cmd
)
545 for (int i
= 0; i
< (GraphTraceLen
/ 2); ++i
)
546 GraphBuffer
[i
] = GraphBuffer
[i
* 2];
548 PrintAndLog("decimated by 2");
549 RepaintGraphWindow();
553 * Undecimate - I'd call it 'interpolate', but we'll save that
554 * name until someone does an actual interpolation command, not just
555 * blindly repeating samples
559 int CmdUndec(const char *Cmd
)
561 if(param_getchar(Cmd
, 0) == 'h')
563 PrintAndLog("Usage: data undec [factor]");
564 PrintAndLog("This function performs un-decimation, by repeating each sample N times");
565 PrintAndLog("Options: ");
566 PrintAndLog(" h This help");
567 PrintAndLog(" factor The number of times to repeat each sample.[default:2]");
568 PrintAndLog("Example: 'data undec 3'");
572 uint8_t factor
= param_get8ex(Cmd
, 0,2, 10);
573 //We have memory, don't we?
574 int swap
[MAX_GRAPH_TRACE_LEN
] = { 0 };
575 uint32_t g_index
= 0 ,s_index
= 0;
576 while(g_index
< GraphTraceLen
&& s_index
< MAX_GRAPH_TRACE_LEN
)
579 for(count
= 0; count
< factor
&& s_index
+count
< MAX_GRAPH_TRACE_LEN
; count
++)
580 swap
[s_index
+count
] = GraphBuffer
[g_index
];
584 memcpy(GraphBuffer
,swap
, s_index
* sizeof(int));
585 GraphTraceLen
= s_index
;
586 RepaintGraphWindow();
591 //shift graph zero up or down based on input + or -
592 int CmdGraphShiftZero(const char *Cmd
)
596 //set options from parameters entered with the command
597 sscanf(Cmd
, "%i", &shift
);
599 for(int i
= 0; i
<GraphTraceLen
; i
++){
600 shiftedVal
=GraphBuffer
[i
]+shift
;
603 else if (shiftedVal
<-127)
605 GraphBuffer
[i
]= shiftedVal
;
611 /* Print our clock rate */
612 // uses data from graphbuffer
613 int CmdDetectClockRate(const char *Cmd
)
616 //int clock = DetectASKClock(0);
617 //PrintAndLog("Auto-detected clock rate: %d", clock);
622 //fsk raw demod and print binary
623 //takes 4 arguments - Clock, invert, rchigh, rclow
624 //defaults: clock = 50, invert=0, rchigh=10, rclow=8 (RF/10 RF/8 (fsk2a))
625 int CmdFSKrawdemod(const char *Cmd
)
627 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
633 //set options from parameters entered with the command
634 sscanf(Cmd
, "%i %i %i %i", &rfLen
, &invert
, &fchigh
, &fclow
);
636 if (strlen(Cmd
)>0 && strlen(Cmd
)<=2) {
638 invert
=1; //if invert option only is used
643 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
644 size_t BitLen
= getFromGraphBuf(BitStream
);
645 //get field clock lengths
647 if (fchigh
==0 || fclow
== 0){
648 fcs
=countFC(BitStream
, BitLen
);
653 fchigh
= (fcs
>> 8) & 0xFF;
657 //get bit clock length
659 rfLen
= detectFSKClk(BitStream
, BitLen
, fchigh
, fclow
);
660 if (rfLen
== 0) rfLen
= 50;
662 PrintAndLog("Args invert: %d - Clock:%d - fchigh:%d - fclow: %d",invert
,rfLen
,fchigh
, fclow
);
663 int size
= fskdemod(BitStream
,BitLen
,(uint8_t)rfLen
,(uint8_t)invert
,(uint8_t)fchigh
,(uint8_t)fclow
);
665 PrintAndLog("FSK decoded bitstream:");
666 setDemodBuf(BitStream
,size
,0);
668 // Now output the bitstream to the scrollback by line of 16 bits
669 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
670 printBitStream(BitStream
,size
);
672 PrintAndLog("no FSK data found");
677 //by marshmellow (based on existing demod + holiman's refactor)
678 //HID Prox demod - FSK RF/50 with preamble of 00011101 (then manchester encoded)
679 //print full HID Prox ID and some bit format details if found
680 int CmdFSKdemodHID(const char *Cmd
)
682 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
683 uint32_t hi2
=0, hi
=0, lo
=0;
685 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
686 size_t BitLen
= getFromGraphBuf(BitStream
);
687 //get binary from fsk wave
688 int idx
= HIDdemodFSK(BitStream
,&BitLen
,&hi2
,&hi
,&lo
);
692 PrintAndLog("DEBUG: Just Noise Detected");
693 } else if (idx
== -2) {
694 PrintAndLog("DEBUG: Error demoding fsk");
695 } else if (idx
== -3) {
696 PrintAndLog("DEBUG: Preamble not found");
697 } else if (idx
== -4) {
698 PrintAndLog("DEBUG: Error in Manchester data, SIZE: %d", BitLen
);
700 PrintAndLog("DEBUG: Error demoding fsk %d", idx
);
705 if (hi2
==0 && hi
==0 && lo
==0) {
706 if (g_debugMode
) PrintAndLog("DEBUG: Error - no values found");
709 if (hi2
!= 0){ //extra large HID tags
710 PrintAndLog("HID Prox TAG ID: %x%08x%08x (%d)",
711 (unsigned int) hi2
, (unsigned int) hi
, (unsigned int) lo
, (unsigned int) (lo
>>1) & 0xFFFF);
713 else { //standard HID tags <38 bits
716 uint32_t cardnum
= 0;
717 if (((hi
>>5)&1)==1){//if bit 38 is set then < 37 bit format is used
719 lo2
=(((hi
& 31) << 12) | (lo
>>20)); //get bits 21-37 to check for format len bit
721 while(lo2
>1){ //find last bit set to 1 (format len bit)
729 cardnum
= (lo
>>1)&0xFFFF;
733 cardnum
= (lo
>>1)&0xFFFF;
734 fc
= ((hi
&1)<<15)|(lo
>>17);
737 cardnum
= (lo
>>1)&0xFFFFF;
738 fc
= ((hi
&1)<<11)|(lo
>>21);
741 else { //if bit 38 is not set then 37 bit format is used
746 cardnum
= (lo
>>1)&0x7FFFF;
747 fc
= ((hi
&0xF)<<12)|(lo
>>20);
750 PrintAndLog("HID Prox TAG ID: %x%08x (%d) - Format Len: %dbit - FC: %d - Card: %d",
751 (unsigned int) hi
, (unsigned int) lo
, (unsigned int) (lo
>>1) & 0xFFFF,
752 (unsigned int) fmtLen
, (unsigned int) fc
, (unsigned int) cardnum
);
754 setDemodBuf(BitStream
,BitLen
,idx
);
756 PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx
, BitLen
);
763 //Paradox Prox demod - FSK RF/50 with preamble of 00001111 (then manchester encoded)
764 //print full Paradox Prox ID and some bit format details if found
765 int CmdFSKdemodParadox(const char *Cmd
)
767 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
768 uint32_t hi2
=0, hi
=0, lo
=0;
770 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
771 size_t BitLen
= getFromGraphBuf(BitStream
);
772 //get binary from fsk wave
773 int idx
= ParadoxdemodFSK(BitStream
,&BitLen
,&hi2
,&hi
,&lo
);
777 PrintAndLog("DEBUG: Just Noise Detected");
778 } else if (idx
== -2) {
779 PrintAndLog("DEBUG: Error demoding fsk");
780 } else if (idx
== -3) {
781 PrintAndLog("DEBUG: Preamble not found");
782 } else if (idx
== -4) {
783 PrintAndLog("DEBUG: Error in Manchester data");
785 PrintAndLog("DEBUG: Error demoding fsk %d", idx
);
790 if (hi2
==0 && hi
==0 && lo
==0){
791 if (g_debugMode
) PrintAndLog("DEBUG: Error - no value found");
794 uint32_t fc
= ((hi
& 0x3)<<6) | (lo
>>26);
795 uint32_t cardnum
= (lo
>>10)&0xFFFF;
797 PrintAndLog("Paradox TAG ID: %x%08x - FC: %d - Card: %d - Checksum: %02x",
798 hi
>>10, (hi
& 0x3)<<26 | (lo
>>10), fc
, cardnum
, (lo
>>2) & 0xFF );
799 setDemodBuf(BitStream
,BitLen
,idx
);
801 PrintAndLog("DEBUG: idx: %d, len: %d, Printing Demod Buffer:", idx
, BitLen
);
809 //IO-Prox demod - FSK RF/64 with preamble of 000000001
810 //print ioprox ID and some format details
811 int CmdFSKdemodIO(const char *Cmd
)
813 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
816 //something in graphbuffer?
817 if (GraphTraceLen
< 65) {
818 if (g_debugMode
)PrintAndLog("DEBUG: not enough samples in GraphBuffer");
821 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
822 size_t BitLen
= getFromGraphBuf(BitStream
);
824 //get binary from fsk wave
825 idx
= IOdemodFSK(BitStream
,BitLen
);
829 PrintAndLog("DEBUG: Just Noise Detected");
830 } else if (idx
== -2) {
831 PrintAndLog("DEBUG: not enough samples");
832 } else if (idx
== -3) {
833 PrintAndLog("DEBUG: error during fskdemod");
834 } else if (idx
== -4) {
835 PrintAndLog("DEBUG: Preamble not found");
836 } else if (idx
== -5) {
837 PrintAndLog("DEBUG: Separator bits not found");
839 PrintAndLog("DEBUG: Error demoding fsk %d", idx
);
846 PrintAndLog("DEBUG: IO Prox Data not found - FSK Bits: %d",BitLen
);
847 if (BitLen
> 92) printBitStream(BitStream
,92);
852 //0 10 20 30 40 50 60
854 //01234567 8 90123456 7 89012345 6 78901234 5 67890123 4 56789012 3 45678901 23
855 //-----------------------------------------------------------------------------
856 //00000000 0 11110000 1 facility 1 version* 1 code*one 1 code*two 1 ???????? 11
858 //XSF(version)facility:codeone+codetwo (raw)
861 if (g_debugMode
==1) PrintAndLog("not enough bits found - bitlen: %d",BitLen
);
864 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]);
865 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]);
866 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]);
867 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]);
868 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]);
869 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]);
870 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]);
872 uint32_t code
= bytebits_to_byte(BitStream
+idx
,32);
873 uint32_t code2
= bytebits_to_byte(BitStream
+idx
+32,32);
874 uint8_t version
= bytebits_to_byte(BitStream
+idx
+27,8); //14,4
875 uint8_t facilitycode
= bytebits_to_byte(BitStream
+idx
+18,8) ;
876 uint16_t number
= (bytebits_to_byte(BitStream
+idx
+36,8)<<8)|(bytebits_to_byte(BitStream
+idx
+45,8)); //36,9
877 PrintAndLog("IO Prox XSF(%02d)%02x:%05d (%08x%08x)",version
,facilitycode
,number
,code
,code2
);
878 setDemodBuf(BitStream
,64,idx
);
880 PrintAndLog("DEBUG: idx: %d, Len: %d, Printing demod buffer:",idx
,64);
888 //AWID Prox demod - FSK RF/50 with preamble of 00000001 (always a 96 bit data stream)
889 //print full AWID Prox ID and some bit format details if found
890 int CmdFSKdemodAWID(const char *Cmd
)
894 //sscanf(Cmd, "%i", &verbose);
896 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
897 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
898 size_t size
= getFromGraphBuf(BitStream
);
900 //get binary from fsk wave
901 int idx
= AWIDdemodFSK(BitStream
, &size
);
905 PrintAndLog("DEBUG: Error - not enough samples");
907 PrintAndLog("DEBUG: Error - only noise found");
909 PrintAndLog("DEBUG: Error - problem during FSK demod");
910 // else if (idx == -3)
911 // PrintAndLog("Error: thought we had a tag but the parity failed");
913 PrintAndLog("DEBUG: Error - AWID preamble not found");
915 PrintAndLog("DEBUG: Error - Size not correct: %d", size
);
917 PrintAndLog("DEBUG: Error %d",idx
);
923 // 0 10 20 30 40 50 60
925 // 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
926 // -----------------------------------------------------------------------------
927 // 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
928 // 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
929 // |---26 bit---| |-----117----||-------------142-------------|
930 // b = format bit len, o = odd parity of last 3 bits
931 // f = facility code, c = card number
932 // w = wiegand parity
933 // (26 bit format shown)
935 //get raw ID before removing parities
936 uint32_t rawLo
= bytebits_to_byte(BitStream
+idx
+64,32);
937 uint32_t rawHi
= bytebits_to_byte(BitStream
+idx
+32,32);
938 uint32_t rawHi2
= bytebits_to_byte(BitStream
+idx
,32);
939 setDemodBuf(BitStream
,96,idx
);
941 size
= removeParity(BitStream
, idx
+8, 4, 1, 88);
943 if (g_debugMode
==1) PrintAndLog("DEBUG: Error - at parity check-tag size does not match AWID format");
946 // ok valid card found!
949 // 0 10 20 30 40 50 60
951 // 01234567 8 90123456 7890123456789012 3 456789012345678901234567890123456
952 // -----------------------------------------------------------------------------
953 // 00011010 1 01110101 0000000010001110 1 000000000000000000000000000000000
954 // bbbbbbbb w ffffffff cccccccccccccccc w xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
955 // |26 bit| |-117--| |-----142------|
956 // b = format bit len, o = odd parity of last 3 bits
957 // f = facility code, c = card number
958 // w = wiegand parity
959 // (26 bit format shown)
962 uint32_t cardnum
= 0;
965 uint8_t fmtLen
= bytebits_to_byte(BitStream
,8);
967 fc
= bytebits_to_byte(BitStream
+9, 8);
968 cardnum
= bytebits_to_byte(BitStream
+17, 16);
969 code1
= bytebits_to_byte(BitStream
+8,fmtLen
);
970 PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %x%08x%08x", fmtLen
, fc
, cardnum
, code1
, rawHi2
, rawHi
, rawLo
);
972 cardnum
= bytebits_to_byte(BitStream
+8+(fmtLen
-17), 16);
974 code1
= bytebits_to_byte(BitStream
+8,fmtLen
-32);
975 code2
= bytebits_to_byte(BitStream
+8+(fmtLen
-32),32);
976 PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x%08x, Raw: %x%08x%08x", fmtLen
, cardnum
, code1
, code2
, rawHi2
, rawHi
, rawLo
);
978 code1
= bytebits_to_byte(BitStream
+8,fmtLen
);
979 PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x, Raw: %x%08x%08x", fmtLen
, cardnum
, code1
, rawHi2
, rawHi
, rawLo
);
983 PrintAndLog("DEBUG: idx: %d, Len: %d Printing Demod Buffer:", idx
, 96);
986 //todo - convert hi2, hi, lo to demodbuffer for future sim/clone commands
991 //Pyramid Prox demod - FSK RF/50 with preamble of 0000000000000001 (always a 128 bit data stream)
992 //print full Farpointe Data/Pyramid Prox ID and some bit format details if found
993 int CmdFSKdemodPyramid(const char *Cmd
)
995 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
996 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
997 size_t size
= getFromGraphBuf(BitStream
);
999 //get binary from fsk wave
1000 int idx
= PyramiddemodFSK(BitStream
, &size
);
1002 if (g_debugMode
==1){
1004 PrintAndLog("DEBUG: Error - not enough samples");
1006 PrintAndLog("DEBUG: Error - only noise found");
1008 PrintAndLog("DEBUG: Error - problem during FSK demod");
1010 PrintAndLog("DEBUG: Error - Size not correct: %d", size
);
1012 PrintAndLog("DEBUG: Error - Pyramid preamble not found");
1014 PrintAndLog("DEBUG: Error - idx: %d",idx
);
1019 // 0 10 20 30 40 50 60
1021 // 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3
1022 // -----------------------------------------------------------------------------
1023 // 0000000 0 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1
1024 // premable xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o
1026 // 64 70 80 90 100 110 120
1028 // 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7
1029 // -----------------------------------------------------------------------------
1030 // 0000000 1 0000000 1 0000000 1 0110111 0 0011000 1 0000001 0 0001100 1 1001010 0
1031 // xxxxxxx o xxxxxxx o xxxxxxx o xswffff o ffffccc o ccccccc o ccccccw o ppppppp o
1032 // |---115---||---------71---------|
1033 // s = format start bit, o = odd parity of last 7 bits
1034 // f = facility code, c = card number
1035 // w = wiegand parity, x = extra space for other formats
1036 // p = unknown checksum
1037 // (26 bit format shown)
1039 //get raw ID before removing parities
1040 uint32_t rawLo
= bytebits_to_byte(BitStream
+idx
+96,32);
1041 uint32_t rawHi
= bytebits_to_byte(BitStream
+idx
+64,32);
1042 uint32_t rawHi2
= bytebits_to_byte(BitStream
+idx
+32,32);
1043 uint32_t rawHi3
= bytebits_to_byte(BitStream
+idx
,32);
1044 setDemodBuf(BitStream
,128,idx
);
1046 size
= removeParity(BitStream
, idx
+8, 8, 1, 120);
1048 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
);
1052 // ok valid card found!
1055 // 0 10 20 30 40 50 60 70
1057 // 01234567890123456789012345678901234567890123456789012345678901234567890
1058 // -----------------------------------------------------------------------
1059 // 00000000000000000000000000000000000000000000000000000000000000000000000
1060 // xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
1064 // 1 2 34567890 1234567890123456 7 8901234
1065 // ---------------------------------------
1066 // 1 1 01110011 0000000001000110 0 1001010
1067 // s w ffffffff cccccccccccccccc w ppppppp
1068 // |--115-| |------71------|
1069 // s = format start bit, o = odd parity of last 7 bits
1070 // f = facility code, c = card number
1071 // w = wiegand parity, x = extra space for other formats
1072 // p = unknown checksum
1073 // (26 bit format shown)
1075 //find start bit to get fmtLen
1077 for (j
=0; j
<size
; j
++){
1078 if(BitStream
[j
]) break;
1080 uint8_t fmtLen
= size
-j
-8;
1082 uint32_t cardnum
= 0;
1084 //uint32_t code2 = 0;
1086 fc
= bytebits_to_byte(BitStream
+73, 8);
1087 cardnum
= bytebits_to_byte(BitStream
+81, 16);
1088 code1
= bytebits_to_byte(BitStream
+72,fmtLen
);
1089 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
);
1090 } else if (fmtLen
==45){
1091 fmtLen
=42; //end = 10 bits not 7 like 26 bit fmt
1092 fc
= bytebits_to_byte(BitStream
+53, 10);
1093 cardnum
= bytebits_to_byte(BitStream
+63, 32);
1094 PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Raw: %x%08x%08x%08x", fmtLen
, fc
, cardnum
, rawHi3
, rawHi2
, rawHi
, rawLo
);
1096 cardnum
= bytebits_to_byte(BitStream
+81, 16);
1098 //code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen-32);
1099 //code2 = bytebits_to_byte(BitStream+(size-32),32);
1100 PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %x%08x%08x%08x", fmtLen
, cardnum
, rawHi3
, rawHi2
, rawHi
, rawLo
);
1102 //code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen);
1103 PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %x%08x%08x%08x", fmtLen
, cardnum
, rawHi3
, rawHi2
, rawHi
, rawLo
);
1107 PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx
, 128);
1113 int CmdFSKdemod(const char *Cmd
) //old CmdFSKdemod needs updating
1115 static const int LowTone
[] = {
1116 1, 1, 1, 1, 1, -1, -1, -1, -1, -1,
1117 1, 1, 1, 1, 1, -1, -1, -1, -1, -1,
1118 1, 1, 1, 1, 1, -1, -1, -1, -1, -1,
1119 1, 1, 1, 1, 1, -1, -1, -1, -1, -1,
1120 1, 1, 1, 1, 1, -1, -1, -1, -1, -1
1122 static const int HighTone
[] = {
1123 1, 1, 1, 1, 1, -1, -1, -1, -1,
1124 1, 1, 1, 1, -1, -1, -1, -1,
1125 1, 1, 1, 1, -1, -1, -1, -1,
1126 1, 1, 1, 1, -1, -1, -1, -1,
1127 1, 1, 1, 1, -1, -1, -1, -1,
1128 1, 1, 1, 1, -1, -1, -1, -1, -1,
1131 int lowLen
= sizeof (LowTone
) / sizeof (int);
1132 int highLen
= sizeof (HighTone
) / sizeof (int);
1133 int convLen
= (highLen
> lowLen
) ? highLen
: lowLen
;
1134 uint32_t hi
= 0, lo
= 0;
1137 int minMark
= 0, maxMark
= 0;
1139 for (i
= 0; i
< GraphTraceLen
- convLen
; ++i
) {
1140 int lowSum
= 0, highSum
= 0;
1142 for (j
= 0; j
< lowLen
; ++j
) {
1143 lowSum
+= LowTone
[j
]*GraphBuffer
[i
+j
];
1145 for (j
= 0; j
< highLen
; ++j
) {
1146 highSum
+= HighTone
[j
] * GraphBuffer
[i
+ j
];
1148 lowSum
= abs(100 * lowSum
/ lowLen
);
1149 highSum
= abs(100 * highSum
/ highLen
);
1150 GraphBuffer
[i
] = (highSum
<< 16) | lowSum
;
1153 for(i
= 0; i
< GraphTraceLen
- convLen
- 16; ++i
) {
1154 int lowTot
= 0, highTot
= 0;
1155 // 10 and 8 are f_s divided by f_l and f_h, rounded
1156 for (j
= 0; j
< 10; ++j
) {
1157 lowTot
+= (GraphBuffer
[i
+j
] & 0xffff);
1159 for (j
= 0; j
< 8; j
++) {
1160 highTot
+= (GraphBuffer
[i
+ j
] >> 16);
1162 GraphBuffer
[i
] = lowTot
- highTot
;
1163 if (GraphBuffer
[i
] > maxMark
) maxMark
= GraphBuffer
[i
];
1164 if (GraphBuffer
[i
] < minMark
) minMark
= GraphBuffer
[i
];
1167 GraphTraceLen
-= (convLen
+ 16);
1168 RepaintGraphWindow();
1170 // Find bit-sync (3 lo followed by 3 high) (HID ONLY)
1171 int max
= 0, maxPos
= 0;
1172 for (i
= 0; i
< 6000; ++i
) {
1174 for (j
= 0; j
< 3 * lowLen
; ++j
) {
1175 dec
-= GraphBuffer
[i
+ j
];
1177 for (; j
< 3 * (lowLen
+ highLen
); ++j
) {
1178 dec
+= GraphBuffer
[i
+ j
];
1186 // place start of bit sync marker in graph
1187 GraphBuffer
[maxPos
] = maxMark
;
1188 GraphBuffer
[maxPos
+ 1] = minMark
;
1192 // place end of bit sync marker in graph
1193 GraphBuffer
[maxPos
] = maxMark
;
1194 GraphBuffer
[maxPos
+1] = minMark
;
1196 PrintAndLog("actual data bits start at sample %d", maxPos
);
1197 PrintAndLog("length %d/%d", highLen
, lowLen
);
1199 uint8_t bits
[46] = {0x00};
1201 // find bit pairs and manchester decode them
1202 for (i
= 0; i
< arraylen(bits
) - 1; ++i
) {
1204 for (j
= 0; j
< lowLen
; ++j
) {
1205 dec
-= GraphBuffer
[maxPos
+ j
];
1207 for (; j
< lowLen
+ highLen
; ++j
) {
1208 dec
+= GraphBuffer
[maxPos
+ j
];
1211 // place inter bit marker in graph
1212 GraphBuffer
[maxPos
] = maxMark
;
1213 GraphBuffer
[maxPos
+ 1] = minMark
;
1215 // hi and lo form a 64 bit pair
1216 hi
= (hi
<< 1) | (lo
>> 31);
1218 // store decoded bit as binary (in hi/lo) and text (in bits[])
1226 PrintAndLog("bits: '%s'", bits
);
1227 PrintAndLog("hex: %08x %08x", hi
, lo
);
1232 //attempt to detect the field clock and bit clock for FSK
1233 int CmdFSKfcDetect(const char *Cmd
)
1235 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
1236 size_t size
= getFromGraphBuf(BitStream
);
1238 uint16_t ans
= countFC(BitStream
, size
);
1240 if (g_debugMode
) PrintAndLog("DEBUG: No data found");
1244 fc1
= (ans
>> 8) & 0xFF;
1247 uint8_t rf1
= detectFSKClk(BitStream
, size
, fc1
, fc2
);
1249 if (g_debugMode
) PrintAndLog("DEBUG: Clock detect error");
1252 PrintAndLog("Detected Field Clocks: FC/%d, FC/%d - Bit Clock: RF/%d", fc1
, fc2
, rf1
);
1257 //attempt to detect the bit clock for PSK or NRZ modulations
1258 int CmdDetectNRZpskClockRate(const char *Cmd
)
1260 GetNRZpskClock("",0,0);
1265 //attempt to psk1 or nrz demod graph buffer
1266 //NOTE CURRENTLY RELIES ON PEAKS :(
1267 int PSKnrzDemod(const char *Cmd
, uint8_t verbose
)
1271 sscanf(Cmd
, "%i %i", &clk
, &invert
);
1272 if (invert
!= 0 && invert
!= 1) {
1273 PrintAndLog("Invalid argument: %s", Cmd
);
1276 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
1277 size_t BitLen
= getFromGraphBuf(BitStream
);
1279 errCnt
= pskNRZrawDemod(BitStream
, &BitLen
,&clk
,&invert
);
1280 if (errCnt
<0|| BitLen
<16){ //throw away static - allow 1 and -1 (in case of threshold command first)
1281 if (g_debugMode
==1) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk
,invert
,BitLen
,errCnt
);
1284 if (verbose
) PrintAndLog("Tried PSK/NRZ Demod using Clock: %d - invert: %d - Bits Found: %d",clk
,invert
,BitLen
);
1286 //prime demod buffer for output
1287 setDemodBuf(BitStream
,BitLen
,0);
1290 // Indala 26 bit decode
1292 // optional arguments - same as CmdpskNRZrawDemod (clock & invert)
1293 int CmdIndalaDecode(const char *Cmd
)
1297 ans
= PSKnrzDemod(Cmd
, 0);
1298 } else{ //default to RF/32
1299 ans
= PSKnrzDemod("32", 0);
1304 PrintAndLog("Error1: %d",ans
);
1308 ans
= indala26decode(DemodBuffer
,(size_t *) &DemodBufferLen
, &invert
);
1311 PrintAndLog("Error2: %d",ans
);
1314 char showbits
[251]={0x00};
1317 PrintAndLog("Had to invert bits");
1319 //convert UID to HEX
1320 uint32_t uid1
, uid2
, uid3
, uid4
, uid5
, uid6
, uid7
;
1324 PrintAndLog("BitLen: %d",DemodBufferLen
);
1325 if (DemodBufferLen
==64){
1326 for( idx
=0; idx
<64; idx
++) {
1327 uid1
=(uid1
<<1)|(uid2
>>31);
1328 if (DemodBuffer
[idx
] == 0) {
1337 PrintAndLog("Indala UID=%s (%x%08x)", showbits
, uid1
, uid2
);
1345 for( idx
=0; idx
<DemodBufferLen
; idx
++) {
1346 uid1
=(uid1
<<1)|(uid2
>>31);
1347 uid2
=(uid2
<<1)|(uid3
>>31);
1348 uid3
=(uid3
<<1)|(uid4
>>31);
1349 uid4
=(uid4
<<1)|(uid5
>>31);
1350 uid5
=(uid5
<<1)|(uid6
>>31);
1351 uid6
=(uid6
<<1)|(uid7
>>31);
1352 if (DemodBuffer
[idx
] == 0) {
1362 PrintAndLog("Indala UID=%s (%x%08x%08x%08x%08x%08x%08x)", showbits
, uid1
, uid2
, uid3
, uid4
, uid5
, uid6
, uid7
);
1365 PrintAndLog("DEBUG: printing demodbuffer:");
1372 //attempt to clean psk wave noise after a peak
1373 //NOTE RELIES ON PEAKS :(
1374 int CmdPskClean(const char *Cmd
)
1376 uint8_t bitStream
[MAX_GRAPH_TRACE_LEN
]={0};
1377 size_t bitLen
= getFromGraphBuf(bitStream
);
1378 pskCleanWave(bitStream
, bitLen
);
1379 setGraphBuf(bitStream
, bitLen
);
1384 // takes 2 arguments - clock and invert both as integers
1385 // attempts to demodulate psk only
1386 // prints binary found and saves in demodbuffer for further commands
1387 int CmdpskNRZrawDemod(const char *Cmd
)
1391 errCnt
= PSKnrzDemod(Cmd
, 1);
1394 if (g_debugMode
) PrintAndLog("Error demoding: %d",errCnt
);
1399 PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt
);
1400 PrintAndLog("PSK or NRZ demoded bitstream:");
1401 // Now output the bitstream to the scrollback by line of 16 bits
1405 PrintAndLog("PSK or NRZ demoded bitstream:");
1406 // Now output the bitstream to the scrollback by line of 16 bits
1414 // takes same args as cmdpsknrzrawdemod
1415 int CmdPSK2rawDemod(const char *Cmd
)
1418 errCnt
=PSKnrzDemod(Cmd
, 1);
1420 if (g_debugMode
) PrintAndLog("Error demoding: %d",errCnt
);
1423 psk1TOpsk2(DemodBuffer
, DemodBufferLen
);
1426 PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt
);
1427 PrintAndLog("PSK2 demoded bitstream:");
1428 // Now output the bitstream to the scrollback by line of 16 bits
1432 PrintAndLog("PSK2 demoded bitstream:");
1433 // Now output the bitstream to the scrollback by line of 16 bits
1439 int CmdGrid(const char *Cmd
)
1441 sscanf(Cmd
, "%i %i", &PlotGridX
, &PlotGridY
);
1442 PlotGridXdefault
= PlotGridX
;
1443 PlotGridYdefault
= PlotGridY
;
1444 RepaintGraphWindow();
1448 int CmdHexsamples(const char *Cmd
)
1453 char string_buf
[25];
1454 char* string_ptr
= string_buf
;
1455 uint8_t got
[BIGBUF_SIZE
];
1457 sscanf(Cmd
, "%i %i", &requested
, &offset
);
1459 /* if no args send something */
1460 if (requested
== 0) {
1463 if (offset
+ requested
> sizeof(got
)) {
1464 PrintAndLog("Tried to read past end of buffer, <bytes> + <offset> > %d", BIGBUF_SIZE
);
1468 GetFromBigBuf(got
,requested
,offset
);
1469 WaitForResponse(CMD_ACK
,NULL
);
1472 for (j
= 0; j
< requested
; j
++) {
1474 string_ptr
+= sprintf(string_ptr
, "%02x ", got
[j
]);
1476 *(string_ptr
- 1) = '\0'; // remove the trailing space
1477 PrintAndLog("%s", string_buf
);
1478 string_buf
[0] = '\0';
1479 string_ptr
= string_buf
;
1482 if (j
== requested
- 1 && string_buf
[0] != '\0') { // print any remaining bytes
1483 *(string_ptr
- 1) = '\0';
1484 PrintAndLog("%s", string_buf
);
1485 string_buf
[0] = '\0';
1491 int CmdHide(const char *Cmd
)
1497 int CmdHpf(const char *Cmd
)
1502 for (i
= 10; i
< GraphTraceLen
; ++i
)
1503 accum
+= GraphBuffer
[i
];
1504 accum
/= (GraphTraceLen
- 10);
1505 for (i
= 0; i
< GraphTraceLen
; ++i
)
1506 GraphBuffer
[i
] -= accum
;
1508 RepaintGraphWindow();
1517 bool _headBit( BitstreamOut
*stream
)
1519 int bytepos
= stream
->position
>> 3; // divide by 8
1520 int bitpos
= (stream
->position
++) & 7; // mask out 00000111
1521 return (*(stream
->buffer
+ bytepos
) >> (7-bitpos
)) & 1;
1524 uint8_t getByte(uint8_t bits_per_sample
, BitstreamOut
* b
)
1528 for(i
=0 ; i
< bits_per_sample
; i
++)
1530 val
|= (_headBit(b
) << (7-i
));
1535 int CmdSamples(const char *Cmd
)
1537 //If we get all but the last byte in bigbuf,
1538 // we don't have to worry about remaining trash
1539 // in the last byte in case the bits-per-sample
1540 // does not line up on byte boundaries
1541 uint8_t got
[BIGBUF_SIZE
-1] = { 0 };
1543 int n
= strtol(Cmd
, NULL
, 0);
1547 if (n
> sizeof(got
))
1550 PrintAndLog("Reading %d bytes from device memory\n", n
);
1551 GetFromBigBuf(got
,n
,0);
1552 PrintAndLog("Data fetched");
1553 UsbCommand response
;
1554 WaitForResponse(CMD_ACK
, &response
);
1555 uint8_t bits_per_sample
= 8;
1557 //Old devices without this feature would send 0 at arg[0]
1558 if(response
.arg
[0] > 0)
1560 sample_config
*sc
= (sample_config
*) response
.d
.asBytes
;
1561 PrintAndLog("Samples @ %d bits/smpl, decimation 1:%d ", sc
->bits_per_sample
1563 bits_per_sample
= sc
->bits_per_sample
;
1565 if(bits_per_sample
< 8)
1567 PrintAndLog("Unpacking...");
1568 BitstreamOut bout
= { got
, bits_per_sample
* n
, 0};
1570 for (j
= 0; j
* bits_per_sample
< n
* 8 && j
< sizeof(GraphBuffer
); j
++) {
1571 uint8_t sample
= getByte(bits_per_sample
, &bout
);
1572 GraphBuffer
[j
] = ((int) sample
)- 128;
1575 PrintAndLog("Unpacked %d samples" , j
);
1578 for (int j
= 0; j
< n
; j
++) {
1579 GraphBuffer
[j
] = ((int)got
[j
]) - 128;
1584 RepaintGraphWindow();
1588 int CmdTuneSamples(const char *Cmd
)
1591 printf("\nMeasuring antenna characteristics, please wait...");
1593 UsbCommand c
= {CMD_MEASURE_ANTENNA_TUNING
};
1597 while(!WaitForResponseTimeout(CMD_MEASURED_ANTENNA_TUNING
,&resp
,1000)) {
1601 PrintAndLog("\nNo response from Proxmark. Aborting...");
1607 int vLf125
, vLf134
, vHf
;
1608 vLf125
= resp
.arg
[0] & 0xffff;
1609 vLf134
= resp
.arg
[0] >> 16;
1610 vHf
= resp
.arg
[1] & 0xffff;;
1611 peakf
= resp
.arg
[2] & 0xffff;
1612 peakv
= resp
.arg
[2] >> 16;
1614 PrintAndLog("# LF antenna: %5.2f V @ 125.00 kHz", vLf125
/1000.0);
1615 PrintAndLog("# LF antenna: %5.2f V @ 134.00 kHz", vLf134
/1000.0);
1616 PrintAndLog("# LF optimal: %5.2f V @%9.2f kHz", peakv
/1000.0, 12000.0/(peakf
+1));
1617 PrintAndLog("# HF antenna: %5.2f V @ 13.56 MHz", vHf
/1000.0);
1619 PrintAndLog("# Your LF antenna is unusable.");
1620 else if (peakv
<10000)
1621 PrintAndLog("# Your LF antenna is marginal.");
1623 PrintAndLog("# Your HF antenna is unusable.");
1625 PrintAndLog("# Your HF antenna is marginal.");
1627 for (int i
= 0; i
< 256; i
++) {
1628 GraphBuffer
[i
] = resp
.d
.asBytes
[i
] - 128;
1631 PrintAndLog("Done! Divisor 89 is 134khz, 95 is 125khz.\n");
1633 GraphTraceLen
= 256;
1640 int CmdLoad(const char *Cmd
)
1642 char filename
[FILE_PATH_SIZE
] = {0x00};
1646 if (len
> FILE_PATH_SIZE
) len
= FILE_PATH_SIZE
;
1647 memcpy(filename
, Cmd
, len
);
1649 FILE *f
= fopen(filename
, "r");
1651 PrintAndLog("couldn't open '%s'", filename
);
1657 while (fgets(line
, sizeof (line
), f
)) {
1658 GraphBuffer
[GraphTraceLen
] = atoi(line
);
1662 PrintAndLog("loaded %d samples", GraphTraceLen
);
1663 RepaintGraphWindow();
1667 int CmdLtrim(const char *Cmd
)
1671 for (int i
= ds
; i
< GraphTraceLen
; ++i
)
1672 GraphBuffer
[i
-ds
] = GraphBuffer
[i
];
1673 GraphTraceLen
-= ds
;
1675 RepaintGraphWindow();
1679 // trim graph to input argument length
1680 int CmdRtrim(const char *Cmd
)
1686 RepaintGraphWindow();
1691 * Manchester demodulate a bitstream. The bitstream needs to be already in
1692 * the GraphBuffer as 0 and 1 values
1694 * Give the clock rate as argument in order to help the sync - the algorithm
1695 * resyncs at each pulse anyway.
1697 * Not optimized by any means, this is the 1st time I'm writing this type of
1698 * routine, feel free to improve...
1700 * 1st argument: clock rate (as number of samples per clock rate)
1701 * Typical values can be 64, 32, 128...
1703 int CmdManchesterDemod(const char *Cmd
)
1705 int i
, j
, invert
= 0;
1711 int hithigh
, hitlow
, first
;
1717 /* check if we're inverting output */
1720 PrintAndLog("Inverting output");
1725 while(*Cmd
== ' '); // in case a 2nd argument was given
1728 /* Holds the decoded bitstream: each clock period contains 2 bits */
1729 /* later simplified to 1 bit after manchester decoding. */
1730 /* Add 10 bits to allow for noisy / uncertain traces without aborting */
1731 /* int BitStream[GraphTraceLen*2/clock+10]; */
1733 /* But it does not work if compiling on WIndows: therefore we just allocate a */
1735 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
] = {0};
1737 /* Detect high and lows */
1738 for (i
= 0; i
< GraphTraceLen
; i
++)
1740 if (GraphBuffer
[i
] > high
)
1741 high
= GraphBuffer
[i
];
1742 else if (GraphBuffer
[i
] < low
)
1743 low
= GraphBuffer
[i
];
1747 clock
= GetClock(Cmd
, high
, 1);
1749 int tolerance
= clock
/4;
1751 /* Detect first transition */
1752 /* Lo-Hi (arbitrary) */
1753 /* skip to the first high */
1754 for (i
= 0; i
< GraphTraceLen
; i
++)
1755 if (GraphBuffer
[i
] == high
)
1757 /* now look for the first low */
1758 for (; i
< GraphTraceLen
; i
++)
1760 if (GraphBuffer
[i
] == low
)
1767 /* If we're not working with 1/0s, demod based off clock */
1770 bit
= 0; /* We assume the 1st bit is zero, it may not be
1771 * the case: this routine (I think) has an init problem.
1774 for (; i
< (int)(GraphTraceLen
/ clock
); i
++)
1780 /* Find out if we hit both high and low peaks */
1781 for (j
= 0; j
< clock
; j
++)
1783 if (GraphBuffer
[(i
* clock
) + j
] == high
)
1785 else if (GraphBuffer
[(i
* clock
) + j
] == low
)
1788 /* it doesn't count if it's the first part of our read
1789 because it's really just trailing from the last sequence */
1790 if (first
&& (hithigh
|| hitlow
))
1791 hithigh
= hitlow
= 0;
1795 if (hithigh
&& hitlow
)
1799 /* If we didn't hit both high and low peaks, we had a bit transition */
1800 if (!hithigh
|| !hitlow
)
1803 BitStream
[bit2idx
++] = bit
^ invert
;
1807 /* standard 1/0 bitstream */
1811 /* Then detect duration between 2 successive transitions */
1812 for (bitidx
= 1; i
< GraphTraceLen
; i
++)
1814 if (GraphBuffer
[i
-1] != GraphBuffer
[i
])
1819 // Error check: if bitidx becomes too large, we do not
1820 // have a Manchester encoded bitstream or the clock is really
1822 if (bitidx
> (GraphTraceLen
*2/clock
+8) ) {
1823 PrintAndLog("Error: the clock you gave is probably wrong, aborting.");
1826 // Then switch depending on lc length:
1827 // Tolerance is 1/4 of clock rate (arbitrary)
1828 if (abs(lc
-clock
/2) < tolerance
) {
1829 // Short pulse : either "1" or "0"
1830 BitStream
[bitidx
++]=GraphBuffer
[i
-1];
1831 } else if (abs(lc
-clock
) < tolerance
) {
1832 // Long pulse: either "11" or "00"
1833 BitStream
[bitidx
++]=GraphBuffer
[i
-1];
1834 BitStream
[bitidx
++]=GraphBuffer
[i
-1];
1838 PrintAndLog("Warning: Manchester decode error for pulse width detection.");
1839 PrintAndLog("(too many of those messages mean either the stream is not Manchester encoded, or clock is wrong)");
1843 PrintAndLog("Error: too many detection errors, aborting.");
1850 // At this stage, we now have a bitstream of "01" ("1") or "10" ("0"), parse it into final decoded bitstream
1851 // Actually, we overwrite BitStream with the new decoded bitstream, we just need to be careful
1852 // to stop output at the final bitidx2 value, not bitidx
1853 for (i
= 0; i
< bitidx
; i
+= 2) {
1854 if ((BitStream
[i
] == 0) && (BitStream
[i
+1] == 1)) {
1855 BitStream
[bit2idx
++] = 1 ^ invert
;
1856 } else if ((BitStream
[i
] == 1) && (BitStream
[i
+1] == 0)) {
1857 BitStream
[bit2idx
++] = 0 ^ invert
;
1859 // We cannot end up in this state, this means we are unsynchronized,
1863 PrintAndLog("Unsynchronized, resync...");
1864 PrintAndLog("(too many of those messages mean the stream is not Manchester encoded)");
1868 PrintAndLog("Error: too many decode errors, aborting.");
1875 PrintAndLog("Manchester decoded bitstream");
1876 // Now output the bitstream to the scrollback by line of 16 bits
1877 for (i
= 0; i
< (bit2idx
-16); i
+=16) {
1878 PrintAndLog("%i %i %i %i %i %i %i %i %i %i %i %i %i %i %i %i",
1899 /* Modulate our data into manchester */
1900 int CmdManchesterMod(const char *Cmd
)
1904 int bit
, lastbit
, wave
;
1907 clock
= GetClock(Cmd
, 0, 1);
1911 for (i
= 0; i
< (int)(GraphTraceLen
/ clock
); i
++)
1913 bit
= GraphBuffer
[i
* clock
] ^ 1;
1915 for (j
= 0; j
< (int)(clock
/2); j
++)
1916 GraphBuffer
[(i
* clock
) + j
] = bit
^ lastbit
^ wave
;
1917 for (j
= (int)(clock
/2); j
< clock
; j
++)
1918 GraphBuffer
[(i
* clock
) + j
] = bit
^ lastbit
^ wave
^ 1;
1920 /* Keep track of how we start our wave and if we changed or not this time */
1921 wave
^= bit
^ lastbit
;
1925 RepaintGraphWindow();
1929 int CmdNorm(const char *Cmd
)
1932 int max
= INT_MIN
, min
= INT_MAX
;
1934 for (i
= 10; i
< GraphTraceLen
; ++i
) {
1935 if (GraphBuffer
[i
] > max
)
1936 max
= GraphBuffer
[i
];
1937 if (GraphBuffer
[i
] < min
)
1938 min
= GraphBuffer
[i
];
1942 for (i
= 0; i
< GraphTraceLen
; ++i
) {
1943 GraphBuffer
[i
] = (GraphBuffer
[i
] - ((max
+ min
) / 2)) * 256 /
1945 //marshmelow: adjusted *1000 to *256 to make +/- 128 so demod commands still work
1948 RepaintGraphWindow();
1952 int CmdPlot(const char *Cmd
)
1958 int CmdSave(const char *Cmd
)
1960 char filename
[FILE_PATH_SIZE
] = {0x00};
1964 if (len
> FILE_PATH_SIZE
) len
= FILE_PATH_SIZE
;
1965 memcpy(filename
, Cmd
, len
);
1968 FILE *f
= fopen(filename
, "w");
1970 PrintAndLog("couldn't open '%s'", filename
);
1974 for (i
= 0; i
< GraphTraceLen
; i
++) {
1975 fprintf(f
, "%d\n", GraphBuffer
[i
]);
1978 PrintAndLog("saved to '%s'", Cmd
);
1982 int CmdScale(const char *Cmd
)
1984 CursorScaleFactor
= atoi(Cmd
);
1985 if (CursorScaleFactor
== 0) {
1986 PrintAndLog("bad, can't have zero scale");
1987 CursorScaleFactor
= 1;
1989 RepaintGraphWindow();
1993 int CmdThreshold(const char *Cmd
)
1995 int threshold
= atoi(Cmd
);
1997 for (int i
= 0; i
< GraphTraceLen
; ++i
) {
1998 if (GraphBuffer
[i
] >= threshold
)
2001 GraphBuffer
[i
] = -1;
2003 RepaintGraphWindow();
2007 int CmdDirectionalThreshold(const char *Cmd
)
2009 int8_t upThres
= param_get8(Cmd
, 0);
2010 int8_t downThres
= param_get8(Cmd
, 1);
2012 printf("Applying Up Threshold: %d, Down Threshold: %d\n", upThres
, downThres
);
2014 directionalThreshold(GraphBuffer
, GraphBuffer
,GraphTraceLen
, upThres
, downThres
);
2015 RepaintGraphWindow();
2019 int CmdZerocrossings(const char *Cmd
)
2021 // Zero-crossings aren't meaningful unless the signal is zero-mean.
2028 for (int i
= 0; i
< GraphTraceLen
; ++i
) {
2029 if (GraphBuffer
[i
] * sign
>= 0) {
2030 // No change in sign, reproduce the previous sample count.
2032 GraphBuffer
[i
] = lastZc
;
2034 // Change in sign, reset the sample count.
2036 GraphBuffer
[i
] = lastZc
;
2044 RepaintGraphWindow();
2048 static command_t CommandTable
[] =
2050 {"help", CmdHelp
, 1, "This help"},
2051 {"amp", CmdAmp
, 1, "Amplify peaks"},
2052 {"askdemod", Cmdaskdemod
, 1, "<0 or 1> -- Attempt to demodulate simple ASK tags"},
2053 {"askmandemod", Cmdaskmandemod
, 1, "[clock] [invert<0|1>] -- Attempt to demodulate ASK/Manchester tags and output binary (args optional)"},
2054 {"askrawdemod", Cmdaskrawdemod
, 1, "[clock] [invert<0|1>] -- Attempt to demodulate ASK tags and output bin (args optional)"},
2055 {"autocorr", CmdAutoCorr
, 1, "<window length> -- Autocorrelation over window"},
2056 {"biphaserawdecode",CmdBiphaseDecodeRaw
,1,"[offset] [invert<0|1>] Biphase decode bin stream in demod buffer (offset = 0|1 bits to shift the decode start)"},
2057 {"bitsamples", CmdBitsamples
, 0, "Get raw samples as bitstring"},
2058 {"bitstream", CmdBitstream
, 1, "[clock rate] -- Convert waveform into a bitstream"},
2059 {"buffclear", CmdBuffClear
, 1, "Clear sample buffer and graph window"},
2060 {"dec", CmdDec
, 1, "Decimate samples"},
2061 {"detectclock", CmdDetectClockRate
, 1, "Detect ASK clock rate"},
2062 {"fskdemod", CmdFSKdemod
, 1, "Demodulate graph window as a HID FSK"},
2063 {"fskawiddemod", CmdFSKdemodAWID
, 1, "Demodulate graph window as an AWID FSK tag using raw"},
2064 {"fskfcdetect", CmdFSKfcDetect
, 1, "Try to detect the Field Clock of an FSK wave"},
2065 {"fskhiddemod", CmdFSKdemodHID
, 1, "Demodulate graph window as a HID FSK tag using raw"},
2066 {"fskiodemod", CmdFSKdemodIO
, 1, "Demodulate graph window as an IO Prox tag FSK using raw"},
2067 {"fskpyramiddemod",CmdFSKdemodPyramid
,1, "Demodulate graph window as a Pyramid FSK tag using raw"},
2068 {"fskparadoxdemod",CmdFSKdemodParadox
,1, "Demodulate graph window as a Paradox FSK tag using raw"},
2069 {"fskrawdemod", CmdFSKrawdemod
, 1, "[clock rate] [invert] [rchigh] [rclow] Demodulate graph window from FSK to bin (clock = 50)(invert = 1|0)(rchigh = 10)(rclow=8)"},
2070 {"grid", CmdGrid
, 1, "<x> <y> -- overlay grid on graph window, use zero value to turn off either"},
2071 {"hexsamples", CmdHexsamples
, 0, "<bytes> [<offset>] -- Dump big buffer as hex bytes"},
2072 {"hide", CmdHide
, 1, "Hide graph window"},
2073 {"hpf", CmdHpf
, 1, "Remove DC offset from trace"},
2074 {"load", CmdLoad
, 1, "<filename> -- Load trace (to graph window"},
2075 {"ltrim", CmdLtrim
, 1, "<samples> -- Trim samples from left of trace"},
2076 {"rtrim", CmdRtrim
, 1, "<location to end trace> -- Trim samples from right of trace"},
2077 {"mandemod", CmdManchesterDemod
, 1, "[i] [clock rate] -- Manchester demodulate binary stream (option 'i' to invert output)"},
2078 {"manrawdecode", Cmdmandecoderaw
, 1, "Manchester decode binary stream already in graph buffer"},
2079 {"manmod", CmdManchesterMod
, 1, "[clock rate] -- Manchester modulate a binary stream"},
2080 {"norm", CmdNorm
, 1, "Normalize max/min to +/-128"},
2081 {"plot", CmdPlot
, 1, "Show graph window (hit 'h' in window for keystroke help)"},
2082 {"pskclean", CmdPskClean
, 1, "Attempt to clean psk wave"},
2083 {"pskdetectclock",CmdDetectNRZpskClockRate
, 1, "Detect ASK, PSK, or NRZ clock rate"},
2084 {"pskindalademod",CmdIndalaDecode
, 1, "[clock] [invert<0|1>] -- Attempt to demodulate psk1 indala tags and output ID binary & hex (args optional)"},
2085 {"psk1nrzrawdemod",CmdpskNRZrawDemod
, 1, "[clock] [invert<0|1>] -- Attempt to demodulate psk1 or nrz tags and output binary (args optional)"},
2086 {"psk2rawdemod", CmdPSK2rawDemod
, 1, "[clock] [invert<0|1>] -- Attempt to demodulate psk2 tags and output binary (args optional)"},
2087 {"samples", CmdSamples
, 0, "[512 - 40000] -- Get raw samples for graph window"},
2088 {"save", CmdSave
, 1, "<filename> -- Save trace (from graph window)"},
2089 {"scale", CmdScale
, 1, "<int> -- Set cursor display scale"},
2090 {"setdebugmode", CmdSetDebugMode
, 1, "<0|1> -- Turn on or off Debugging Mode for demods"},
2091 {"shiftgraphzero",CmdGraphShiftZero
, 1, "<shift> -- Shift 0 for Graphed wave + or - shift value"},
2092 {"threshold", CmdThreshold
, 1, "<threshold> -- Maximize/minimize every value in the graph window depending on threshold"},
2093 {"dirthreshold", CmdDirectionalThreshold
, 1, "<thres up> <thres down> -- Max rising higher up-thres/ Min falling lower down-thres, keep rest as prev."},
2094 {"tune", CmdTuneSamples
, 0, "Get hw tune samples for graph window"},
2095 {"undec", CmdUndec
, 1, "Un-decimate samples by 2"},
2096 {"zerocrossings", CmdZerocrossings
, 1, "Count time between zero-crossings"},
2097 {NULL
, NULL
, 0, NULL
}
2100 int CmdData(const char *Cmd
)
2102 CmdsParse(CommandTable
, Cmd
);
2106 int CmdHelp(const char *Cmd
)
2108 CmdsHelp(CommandTable
);