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"
24 uint8_t DemodBuffer
[MAX_DEMOD_BUF_LEN
];
27 static int CmdHelp(const char *Cmd
);
29 //set the demod buffer with given array of binary (one bit per byte)
31 void setDemodBuf(uint8_t *buff
, size_t size
, size_t startIdx
)
34 for (; i
< size
; i
++){
35 DemodBuffer
[i
]=buff
[startIdx
++];
41 int CmdSetDebugMode(const char *Cmd
)
44 sscanf(Cmd
, "%i", &demod
);
45 g_debugMode
=(uint8_t)demod
;
53 int bitLen
= DemodBufferLen
;
55 PrintAndLog("no bits found in demod buffer");
58 if (bitLen
>512) bitLen
=512; //max output to 512 bits if we have more - should be plenty
60 // equally divided by 16
64 for (i
= 0; i
<= (bitLen
-16); i
+=16) {
65 PrintAndLog("%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i",
87 int CmdAmp(const char *Cmd
)
89 int i
, rising
, falling
;
90 int max
= INT_MIN
, min
= INT_MAX
;
92 for (i
= 10; i
< GraphTraceLen
; ++i
) {
93 if (GraphBuffer
[i
] > max
)
95 if (GraphBuffer
[i
] < min
)
101 for (i
= 0; i
< GraphTraceLen
; ++i
) {
102 if (GraphBuffer
[i
+ 1] < GraphBuffer
[i
]) {
104 GraphBuffer
[i
] = max
;
109 if (GraphBuffer
[i
+ 1] > GraphBuffer
[i
]) {
111 GraphBuffer
[i
] = min
;
118 RepaintGraphWindow();
123 * Generic command to demodulate ASK.
125 * Argument is convention: positive or negative (High mod means zero
126 * or high mod means one)
128 * Updates the Graph trace with 0/1 values
133 //this method is dependant on all highs and lows to be the same(or clipped) this creates issues[marshmellow] it also ignores the clock
134 int Cmdaskdemod(const char *Cmd
)
137 int c
, high
= 0, low
= 0;
139 // TODO: complain if we do not give 2 arguments here !
140 // (AL - this doesn't make sense! we're only using one argument!!!)
141 sscanf(Cmd
, "%i", &c
);
143 /* Detect high and lows and clock */
145 for (i
= 0; i
< GraphTraceLen
; ++i
)
147 if (GraphBuffer
[i
] > high
)
148 high
= GraphBuffer
[i
];
149 else if (GraphBuffer
[i
] < low
)
150 low
= GraphBuffer
[i
];
154 if (c
!= 0 && c
!= 1) {
155 PrintAndLog("Invalid argument: %s", Cmd
);
159 if (GraphBuffer
[0] > 0) {
160 GraphBuffer
[0] = 1-c
;
164 for (i
= 1; i
< GraphTraceLen
; ++i
) {
165 /* Transitions are detected at each peak
166 * Transitions are either:
167 * - we're low: transition if we hit a high
168 * - we're high: transition if we hit a low
169 * (we need to do it this way because some tags keep high or
170 * low for long periods, others just reach the peak and go
173 //[marhsmellow] change == to >= for high and <= for low for fuzz
174 if ((GraphBuffer
[i
] == high
) && (GraphBuffer
[i
- 1] == c
)) {
175 GraphBuffer
[i
] = 1 - c
;
176 } else if ((GraphBuffer
[i
] == low
) && (GraphBuffer
[i
- 1] == (1 - c
))){
180 GraphBuffer
[i
] = GraphBuffer
[i
- 1];
183 RepaintGraphWindow();
188 void printBitStream(uint8_t BitStream
[], uint32_t bitLen
)
192 PrintAndLog("Too few bits found: %d",bitLen
);
195 if (bitLen
>512) bitLen
=512;
196 for (i
= 0; i
<= (bitLen
-16); i
+=16) {
197 PrintAndLog("%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i",
218 //print EM410x ID in multiple formats
219 void printEM410x(uint64_t id
)
226 for (ii
=5; ii
>0;ii
--){
228 id2lo
=(id2lo
<<1LL) | ((id
& (iii
<< (i
+((ii
-1)*8)))) >> (i
+((ii
-1)*8)));
232 PrintAndLog("EM TAG ID : %010llx", id
);
233 PrintAndLog("Unique TAG ID: %010llx", id2lo
);
234 PrintAndLog("DEZ 8 : %08lld",id
& 0xFFFFFF);
235 PrintAndLog("DEZ 10 : %010lld",id
& 0xFFFFFF);
236 PrintAndLog("DEZ 5.5 : %05lld.%05lld",(id
>>16LL) & 0xFFFF,(id
& 0xFFFF));
237 PrintAndLog("DEZ 3.5A : %03lld.%05lld",(id
>>32ll),(id
& 0xFFFF));
238 PrintAndLog("DEZ 14/IK2 : %014lld",id
);
239 PrintAndLog("DEZ 15/IK3 : %015lld",id2lo
);
240 PrintAndLog("Other : %05lld_%03lld_%08lld",(id
&0xFFFF),((id
>>16LL) & 0xFF),(id
& 0xFFFFFF));
246 //take binary from demod buffer and see if we can find an EM410x ID
247 int CmdEm410xDecode(const char *Cmd
)
250 size_t size
= DemodBufferLen
, idx
=0;
251 id
= Em410xDecode(DemodBuffer
, &size
, &idx
);
253 setDemodBuf(DemodBuffer
, size
, idx
);
255 PrintAndLog("DEBUG: Printing demod buffer:");
266 //takes 2 arguments - clock and invert both as integers
267 //attempts to demodulate ask while decoding manchester
268 //prints binary found and saves in graphbuffer for further commands
269 int Cmdaskmandemod(const char *Cmd
)
273 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
274 sscanf(Cmd
, "%i %i", &clk
, &invert
);
275 if (invert
!= 0 && invert
!= 1) {
276 PrintAndLog("Invalid argument: %s", Cmd
);
280 size_t BitLen
= getFromGraphBuf(BitStream
);
281 if (g_debugMode
==1) PrintAndLog("DEBUG: Bitlen from grphbuff: %d",BitLen
);
283 errCnt
= askmandemod(BitStream
, &BitLen
,&clk
,&invert
);
284 if (errCnt
<0||BitLen
<16){ //if fatal error (or -1)
285 if (g_debugMode
==1) PrintAndLog("no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt
,invert
,BitLen
,clk
);
288 PrintAndLog("\nUsing Clock: %d - Invert: %d - Bits Found: %d",clk
,invert
,BitLen
);
292 PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt
);
294 PrintAndLog("ASK/Manchester decoded bitstream:");
295 // Now output the bitstream to the scrollback by line of 16 bits
296 setDemodBuf(BitStream
,BitLen
,0);
300 lo
= Em410xDecode(BitStream
, &BitLen
, &idx
);
302 //set GraphBuffer for clone or sim command
303 setDemodBuf(BitStream
, BitLen
, idx
);
305 PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx
, BitLen
);
308 PrintAndLog("EM410x pattern found: ");
317 //stricktly take 10 and 01 and convert to 0 and 1
318 int Cmdmandecoderaw(const char *Cmd
)
323 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
325 for (;i
<DemodBufferLen
;++i
){
326 if (DemodBuffer
[i
]>high
) high
=DemodBuffer
[i
];
327 else if(DemodBuffer
[i
]<low
) low
=DemodBuffer
[i
];
328 BitStream
[i
]=DemodBuffer
[i
];
330 if (high
>1 || low
<0 ){
331 PrintAndLog("Error: please raw demod the wave first then mancheseter raw decode");
335 errCnt
=manrawdecode(BitStream
, &size
);
337 PrintAndLog("Too many errors: %d",errCnt
);
340 PrintAndLog("Manchester Decoded - # errors:%d - data:",errCnt
);
341 printBitStream(BitStream
, size
);
345 id
= Em410xDecode(BitStream
, &size
, &idx
);
347 //need to adjust to set bitstream back to manchester encoded data
348 //setDemodBuf(BitStream, size, idx);
358 //take 01 or 10 = 0 and 11 or 00 = 1
359 //takes 2 arguments "offset" default = 0 if 1 it will shift the decode by one bit
360 // and "invert" default = 0 if 1 it will invert output
361 // since it is not like manchester and doesn't have an incorrect bit pattern we
362 // cannot determine if our decode is correct or if it should be shifted by one bit
363 // the argument offset allows us to manually shift if the output is incorrect
364 // (better would be to demod and decode at the same time so we can distinguish large
365 // width waves vs small width waves to help the decode positioning) or askbiphdemod
366 int CmdBiphaseDecodeRaw(const char *Cmd
)
374 sscanf(Cmd
, "%i %i", &offset
, &invert
);
375 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
376 //get graphbuffer & high and low
377 for (;i
<DemodBufferLen
;++i
){
378 if(DemodBuffer
[i
]>high
)high
=DemodBuffer
[i
];
379 else if(DemodBuffer
[i
]<low
)low
=DemodBuffer
[i
];
380 BitStream
[i
]=DemodBuffer
[i
];
382 if (high
>1 || low
<0){
383 PrintAndLog("Error: please raw demod the wave first then decode");
387 errCnt
=BiphaseRawDecode(BitStream
, &size
, offset
, invert
);
389 PrintAndLog("Too many errors attempting to decode: %d",errCnt
);
392 PrintAndLog("Biphase Decoded using offset: %d - # errors:%d - data:",offset
,errCnt
);
393 printBitStream(BitStream
, size
);
394 PrintAndLog("\nif bitstream does not look right try offset=1");
399 //takes 2 arguments - clock and invert both as integers
400 //attempts to demodulate ask only
401 //prints binary found and saves in graphbuffer for further commands
402 int Cmdaskrawdemod(const char *Cmd
)
406 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
407 sscanf(Cmd
, "%i %i", &clk
, &invert
);
408 if (invert
!= 0 && invert
!= 1) {
409 PrintAndLog("Invalid argument: %s", Cmd
);
412 size_t BitLen
= getFromGraphBuf(BitStream
);
414 errCnt
= askrawdemod(BitStream
, &BitLen
,&clk
,&invert
);
415 if (errCnt
==-1||BitLen
<16){ //throw away static - allow 1 and -1 (in case of threshold command first)
416 PrintAndLog("no data found");
417 if (g_debugMode
==1) PrintAndLog("errCnt: %d, BitLen: %d, clk: %d, invert: %d", errCnt
, BitLen
, clk
, invert
);
420 PrintAndLog("Using Clock: %d - invert: %d - Bits Found: %d",clk
,invert
,BitLen
);
422 //move BitStream back to DemodBuffer
423 setDemodBuf(BitStream
,BitLen
,0);
427 PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt
);
429 PrintAndLog("ASK demoded bitstream:");
430 // Now output the bitstream to the scrollback by line of 16 bits
431 printBitStream(BitStream
,BitLen
);
436 int CmdAutoCorr(const char *Cmd
)
438 static int CorrelBuffer
[MAX_GRAPH_TRACE_LEN
];
440 int window
= atoi(Cmd
);
443 PrintAndLog("needs a window");
446 if (window
>= GraphTraceLen
) {
447 PrintAndLog("window must be smaller than trace (%d samples)",
452 PrintAndLog("performing %d correlations", GraphTraceLen
- window
);
454 for (int i
= 0; i
< GraphTraceLen
- window
; ++i
) {
456 for (int j
= 0; j
< window
; ++j
) {
457 sum
+= (GraphBuffer
[j
]*GraphBuffer
[i
+ j
]) / 256;
459 CorrelBuffer
[i
] = sum
;
461 GraphTraceLen
= GraphTraceLen
- window
;
462 memcpy(GraphBuffer
, CorrelBuffer
, GraphTraceLen
* sizeof (int));
464 RepaintGraphWindow();
468 int CmdBitsamples(const char *Cmd
)
473 GetFromBigBuf(got
,sizeof(got
),0);
474 WaitForResponse(CMD_ACK
,NULL
);
476 for (int j
= 0; j
< sizeof(got
); j
++) {
477 for (int k
= 0; k
< 8; k
++) {
478 if(got
[j
] & (1 << (7 - k
))) {
479 GraphBuffer
[cnt
++] = 1;
481 GraphBuffer
[cnt
++] = 0;
486 RepaintGraphWindow();
491 * Convert to a bitstream
493 int CmdBitstream(const char *Cmd
)
501 int hithigh
, hitlow
, first
;
503 /* Detect high and lows and clock */
504 for (i
= 0; i
< GraphTraceLen
; ++i
)
506 if (GraphBuffer
[i
] > high
)
507 high
= GraphBuffer
[i
];
508 else if (GraphBuffer
[i
] < low
)
509 low
= GraphBuffer
[i
];
513 clock
= GetClock(Cmd
, high
, 1);
517 for (i
= 0; i
< (int)(gtl
/ clock
); ++i
)
522 /* Find out if we hit both high and low peaks */
523 for (j
= 0; j
< clock
; ++j
)
525 if (GraphBuffer
[(i
* clock
) + j
] == high
)
527 else if (GraphBuffer
[(i
* clock
) + j
] == low
)
529 /* it doesn't count if it's the first part of our read
530 because it's really just trailing from the last sequence */
531 if (first
&& (hithigh
|| hitlow
))
532 hithigh
= hitlow
= 0;
536 if (hithigh
&& hitlow
)
540 /* If we didn't hit both high and low peaks, we had a bit transition */
541 if (!hithigh
|| !hitlow
)
544 AppendGraph(0, clock
, bit
);
547 RepaintGraphWindow();
551 int CmdBuffClear(const char *Cmd
)
553 UsbCommand c
= {CMD_BUFF_CLEAR
};
559 int CmdDec(const char *Cmd
)
561 for (int i
= 0; i
< (GraphTraceLen
/ 2); ++i
)
562 GraphBuffer
[i
] = GraphBuffer
[i
* 2];
564 PrintAndLog("decimated by 2");
565 RepaintGraphWindow();
570 //shift graph zero up or down based on input + or -
571 int CmdGraphShiftZero(const char *Cmd
)
575 //set options from parameters entered with the command
576 sscanf(Cmd
, "%i", &shift
);
578 for(int i
= 0; i
<GraphTraceLen
; i
++){
579 shiftedVal
=GraphBuffer
[i
]+shift
;
582 else if (shiftedVal
<-127)
584 GraphBuffer
[i
]= shiftedVal
;
590 /* Print our clock rate */
591 // uses data from graphbuffer
592 int CmdDetectClockRate(const char *Cmd
)
595 //int clock = DetectASKClock(0);
596 //PrintAndLog("Auto-detected clock rate: %d", clock);
601 //fsk raw demod and print binary
602 //takes 4 arguments - Clock, invert, rchigh, rclow
603 //defaults: clock = 50, invert=0, rchigh=10, rclow=8 (RF/10 RF/8 (fsk2a))
604 int CmdFSKrawdemod(const char *Cmd
)
606 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
612 //set options from parameters entered with the command
613 sscanf(Cmd
, "%i %i %i %i", &rfLen
, &invert
, &fchigh
, &fclow
);
615 if (strlen(Cmd
)>0 && strlen(Cmd
)<=2) {
617 invert
=1; //if invert option only is used
622 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
623 size_t BitLen
= getFromGraphBuf(BitStream
);
624 //get field clock lengths
626 if (fchigh
==0 || fclow
== 0){
627 fcs
=countFC(BitStream
, BitLen
);
632 fchigh
= (fcs
>> 8) & 0xFF;
636 //get bit clock length
638 rfLen
= detectFSKClk(BitStream
, BitLen
, fchigh
, fclow
);
639 if (rfLen
== 0) rfLen
= 50;
641 PrintAndLog("Args invert: %d - Clock:%d - fchigh:%d - fclow: %d",invert
,rfLen
,fchigh
, fclow
);
642 int size
= fskdemod(BitStream
,BitLen
,(uint8_t)rfLen
,(uint8_t)invert
,(uint8_t)fchigh
,(uint8_t)fclow
);
644 PrintAndLog("FSK decoded bitstream:");
645 setDemodBuf(BitStream
,size
,0);
647 // Now output the bitstream to the scrollback by line of 16 bits
648 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
649 printBitStream(BitStream
,size
);
651 PrintAndLog("no FSK data found");
656 //by marshmellow (based on existing demod + holiman's refactor)
657 //HID Prox demod - FSK RF/50 with preamble of 00011101 (then manchester encoded)
658 //print full HID Prox ID and some bit format details if found
659 int CmdFSKdemodHID(const char *Cmd
)
661 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
662 uint32_t hi2
=0, hi
=0, lo
=0;
664 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
665 size_t BitLen
= getFromGraphBuf(BitStream
);
666 //get binary from fsk wave
667 int idx
= HIDdemodFSK(BitStream
,&BitLen
,&hi2
,&hi
,&lo
);
671 PrintAndLog("DEBUG: Just Noise Detected");
672 } else if (idx
== -2) {
673 PrintAndLog("DEBUG: Error demoding fsk");
674 } else if (idx
== -3) {
675 PrintAndLog("DEBUG: Preamble not found");
676 } else if (idx
== -4) {
677 PrintAndLog("DEBUG: Error in Manchester data, SIZE: %d", BitLen
);
679 PrintAndLog("DEBUG: Error demoding fsk %d", idx
);
684 if (hi2
==0 && hi
==0 && lo
==0) {
685 if (g_debugMode
) PrintAndLog("DEBUG: Error - no values found");
688 if (hi2
!= 0){ //extra large HID tags
689 PrintAndLog("HID Prox TAG ID: %x%08x%08x (%d)",
690 (unsigned int) hi2
, (unsigned int) hi
, (unsigned int) lo
, (unsigned int) (lo
>>1) & 0xFFFF);
692 else { //standard HID tags <38 bits
695 uint32_t cardnum
= 0;
696 if (((hi
>>5)&1)==1){//if bit 38 is set then < 37 bit format is used
698 lo2
=(((hi
& 31) << 12) | (lo
>>20)); //get bits 21-37 to check for format len bit
700 while(lo2
>1){ //find last bit set to 1 (format len bit)
708 cardnum
= (lo
>>1)&0xFFFF;
712 cardnum
= (lo
>>1)&0xFFFF;
713 fc
= ((hi
&1)<<15)|(lo
>>17);
716 cardnum
= (lo
>>1)&0xFFFFF;
717 fc
= ((hi
&1)<<11)|(lo
>>21);
720 else { //if bit 38 is not set then 37 bit format is used
725 cardnum
= (lo
>>1)&0x7FFFF;
726 fc
= ((hi
&0xF)<<12)|(lo
>>20);
729 PrintAndLog("HID Prox TAG ID: %x%08x (%d) - Format Len: %dbit - FC: %d - Card: %d",
730 (unsigned int) hi
, (unsigned int) lo
, (unsigned int) (lo
>>1) & 0xFFFF,
731 (unsigned int) fmtLen
, (unsigned int) fc
, (unsigned int) cardnum
);
733 setDemodBuf(BitStream
,BitLen
,idx
);
735 PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx
, BitLen
);
742 //Paradox Prox demod - FSK RF/50 with preamble of 00001111 (then manchester encoded)
743 //print full Paradox Prox ID and some bit format details if found
744 int CmdFSKdemodParadox(const char *Cmd
)
746 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
747 uint32_t hi2
=0, hi
=0, lo
=0;
749 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
750 size_t BitLen
= getFromGraphBuf(BitStream
);
751 //get binary from fsk wave
752 int idx
= ParadoxdemodFSK(BitStream
,&BitLen
,&hi2
,&hi
,&lo
);
756 PrintAndLog("DEBUG: Just Noise Detected");
757 } else if (idx
== -2) {
758 PrintAndLog("DEBUG: Error demoding fsk");
759 } else if (idx
== -3) {
760 PrintAndLog("DEBUG: Preamble not found");
761 } else if (idx
== -4) {
762 PrintAndLog("DEBUG: Error in Manchester data");
764 PrintAndLog("DEBUG: Error demoding fsk %d", idx
);
769 if (hi2
==0 && hi
==0 && lo
==0){
770 if (g_debugMode
) PrintAndLog("DEBUG: Error - no value found");
773 uint32_t fc
= ((hi
& 0x3)<<6) | (lo
>>26);
774 uint32_t cardnum
= (lo
>>10)&0xFFFF;
776 PrintAndLog("Paradox TAG ID: %x%08x - FC: %d - Card: %d - Checksum: %02x",
777 hi
>>10, (hi
& 0x3)<<26 | (lo
>>10), fc
, cardnum
, (lo
>>2) & 0xFF );
778 setDemodBuf(BitStream
,BitLen
,idx
);
780 PrintAndLog("DEBUG: idx: %d, len: %d, Printing Demod Buffer:", idx
, BitLen
);
788 //IO-Prox demod - FSK RF/64 with preamble of 000000001
789 //print ioprox ID and some format details
790 int CmdFSKdemodIO(const char *Cmd
)
792 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
795 //something in graphbuffer?
796 if (GraphTraceLen
< 65) {
797 if (g_debugMode
)PrintAndLog("DEBUG: not enough samples in GraphBuffer");
800 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
801 size_t BitLen
= getFromGraphBuf(BitStream
);
803 //get binary from fsk wave
804 idx
= IOdemodFSK(BitStream
,BitLen
);
808 PrintAndLog("DEBUG: Just Noise Detected");
809 } else if (idx
== -2) {
810 PrintAndLog("DEBUG: not enough samples");
811 } else if (idx
== -3) {
812 PrintAndLog("DEBUG: error during fskdemod");
813 } else if (idx
== -4) {
814 PrintAndLog("DEBUG: Preamble not found");
815 } else if (idx
== -5) {
816 PrintAndLog("DEBUG: Separator bits not found");
818 PrintAndLog("DEBUG: Error demoding fsk %d", idx
);
825 PrintAndLog("DEBUG: IO Prox Data not found - FSK Bits: %d",BitLen
);
826 if (BitLen
> 92) printBitStream(BitStream
,92);
831 //0 10 20 30 40 50 60
833 //01234567 8 90123456 7 89012345 6 78901234 5 67890123 4 56789012 3 45678901 23
834 //-----------------------------------------------------------------------------
835 //00000000 0 11110000 1 facility 1 version* 1 code*one 1 code*two 1 ???????? 11
837 //XSF(version)facility:codeone+codetwo (raw)
840 if (g_debugMode
==1) PrintAndLog("not enough bits found - bitlen: %d",BitLen
);
843 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]);
844 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]);
845 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]);
846 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]);
847 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]);
848 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]);
849 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]);
851 uint32_t code
= bytebits_to_byte(BitStream
+idx
,32);
852 uint32_t code2
= bytebits_to_byte(BitStream
+idx
+32,32);
853 uint8_t version
= bytebits_to_byte(BitStream
+idx
+27,8); //14,4
854 uint8_t facilitycode
= bytebits_to_byte(BitStream
+idx
+18,8) ;
855 uint16_t number
= (bytebits_to_byte(BitStream
+idx
+36,8)<<8)|(bytebits_to_byte(BitStream
+idx
+45,8)); //36,9
856 PrintAndLog("IO Prox XSF(%02d)%02x:%05d (%08x%08x)",version
,facilitycode
,number
,code
,code2
);
857 setDemodBuf(BitStream
,64,idx
);
859 PrintAndLog("DEBUG: idx: %d, Len: %d, Printing demod buffer:",idx
,64);
867 //AWID Prox demod - FSK RF/50 with preamble of 00000001 (always a 96 bit data stream)
868 //print full AWID Prox ID and some bit format details if found
869 int CmdFSKdemodAWID(const char *Cmd
)
873 //sscanf(Cmd, "%i", &verbose);
875 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
876 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
877 size_t size
= getFromGraphBuf(BitStream
);
879 //get binary from fsk wave
880 int idx
= AWIDdemodFSK(BitStream
, &size
);
884 PrintAndLog("DEBUG: Error - not enough samples");
886 PrintAndLog("DEBUG: Error - only noise found");
888 PrintAndLog("DEBUG: Error - problem during FSK demod");
889 // else if (idx == -3)
890 // PrintAndLog("Error: thought we had a tag but the parity failed");
892 PrintAndLog("DEBUG: Error - AWID preamble not found");
894 PrintAndLog("DEBUG: Error - Size not correct: %d", size
);
896 PrintAndLog("DEBUG: Error %d",idx
);
902 // 0 10 20 30 40 50 60
904 // 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
905 // -----------------------------------------------------------------------------
906 // 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
907 // 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
908 // |---26 bit---| |-----117----||-------------142-------------|
909 // b = format bit len, o = odd parity of last 3 bits
910 // f = facility code, c = card number
911 // w = wiegand parity
912 // (26 bit format shown)
914 //get raw ID before removing parities
915 uint32_t rawLo
= bytebits_to_byte(BitStream
+idx
+64,32);
916 uint32_t rawHi
= bytebits_to_byte(BitStream
+idx
+32,32);
917 uint32_t rawHi2
= bytebits_to_byte(BitStream
+idx
,32);
918 setDemodBuf(BitStream
,96,idx
);
920 size
= removeParity(BitStream
, idx
+8, 4, 1, 88);
922 if (g_debugMode
==1) PrintAndLog("DEBUG: Error - at parity check-tag size does not match AWID format");
925 // ok valid card found!
928 // 0 10 20 30 40 50 60
930 // 01234567 8 90123456 7890123456789012 3 456789012345678901234567890123456
931 // -----------------------------------------------------------------------------
932 // 00011010 1 01110101 0000000010001110 1 000000000000000000000000000000000
933 // bbbbbbbb w ffffffff cccccccccccccccc w xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
934 // |26 bit| |-117--| |-----142------|
935 // b = format bit len, o = odd parity of last 3 bits
936 // f = facility code, c = card number
937 // w = wiegand parity
938 // (26 bit format shown)
941 uint32_t cardnum
= 0;
944 uint8_t fmtLen
= bytebits_to_byte(BitStream
,8);
946 fc
= bytebits_to_byte(BitStream
+9, 8);
947 cardnum
= bytebits_to_byte(BitStream
+17, 16);
948 code1
= bytebits_to_byte(BitStream
+8,fmtLen
);
949 PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %x%08x%08x", fmtLen
, fc
, cardnum
, code1
, rawHi2
, rawHi
, rawLo
);
951 cardnum
= bytebits_to_byte(BitStream
+8+(fmtLen
-17), 16);
953 code1
= bytebits_to_byte(BitStream
+8,fmtLen
-32);
954 code2
= bytebits_to_byte(BitStream
+8+(fmtLen
-32),32);
955 PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x%08x, Raw: %x%08x%08x", fmtLen
, cardnum
, code1
, code2
, rawHi2
, rawHi
, rawLo
);
957 code1
= bytebits_to_byte(BitStream
+8,fmtLen
);
958 PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x, Raw: %x%08x%08x", fmtLen
, cardnum
, code1
, rawHi2
, rawHi
, rawLo
);
962 PrintAndLog("DEBUG: idx: %d, Len: %d Printing Demod Buffer:", idx
, 96);
965 //todo - convert hi2, hi, lo to demodbuffer for future sim/clone commands
970 //Pyramid Prox demod - FSK RF/50 with preamble of 0000000000000001 (always a 128 bit data stream)
971 //print full Farpointe Data/Pyramid Prox ID and some bit format details if found
972 int CmdFSKdemodPyramid(const char *Cmd
)
974 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
975 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
976 size_t size
= getFromGraphBuf(BitStream
);
978 //get binary from fsk wave
979 int idx
= PyramiddemodFSK(BitStream
, &size
);
983 PrintAndLog("DEBUG: Error - not enough samples");
985 PrintAndLog("DEBUG: Error - only noise found");
987 PrintAndLog("DEBUG: Error - problem during FSK demod");
989 PrintAndLog("DEBUG: Error - Size not correct: %d", size
);
991 PrintAndLog("DEBUG: Error - Pyramid preamble not found");
993 PrintAndLog("DEBUG: Error - idx: %d",idx
);
998 // 0 10 20 30 40 50 60
1000 // 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3
1001 // -----------------------------------------------------------------------------
1002 // 0000000 0 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1
1003 // premable xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o
1005 // 64 70 80 90 100 110 120
1007 // 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7
1008 // -----------------------------------------------------------------------------
1009 // 0000000 1 0000000 1 0000000 1 0110111 0 0011000 1 0000001 0 0001100 1 1001010 0
1010 // xxxxxxx o xxxxxxx o xxxxxxx o xswffff o ffffccc o ccccccc o ccccccw o ppppppp o
1011 // |---115---||---------71---------|
1012 // s = format start bit, o = odd parity of last 7 bits
1013 // f = facility code, c = card number
1014 // w = wiegand parity, x = extra space for other formats
1015 // p = unknown checksum
1016 // (26 bit format shown)
1018 //get raw ID before removing parities
1019 uint32_t rawLo
= bytebits_to_byte(BitStream
+idx
+96,32);
1020 uint32_t rawHi
= bytebits_to_byte(BitStream
+idx
+64,32);
1021 uint32_t rawHi2
= bytebits_to_byte(BitStream
+idx
+32,32);
1022 uint32_t rawHi3
= bytebits_to_byte(BitStream
+idx
,32);
1023 setDemodBuf(BitStream
,128,idx
);
1025 size
= removeParity(BitStream
, idx
+8, 8, 1, 120);
1027 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
);
1031 // ok valid card found!
1034 // 0 10 20 30 40 50 60 70
1036 // 01234567890123456789012345678901234567890123456789012345678901234567890
1037 // -----------------------------------------------------------------------
1038 // 00000000000000000000000000000000000000000000000000000000000000000000000
1039 // xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
1043 // 1 2 34567890 1234567890123456 7 8901234
1044 // ---------------------------------------
1045 // 1 1 01110011 0000000001000110 0 1001010
1046 // s w ffffffff cccccccccccccccc w ppppppp
1047 // |--115-| |------71------|
1048 // s = format start bit, o = odd parity of last 7 bits
1049 // f = facility code, c = card number
1050 // w = wiegand parity, x = extra space for other formats
1051 // p = unknown checksum
1052 // (26 bit format shown)
1054 //find start bit to get fmtLen
1056 for (j
=0; j
<size
; j
++){
1057 if(BitStream
[j
]) break;
1059 uint8_t fmtLen
= size
-j
-8;
1061 uint32_t cardnum
= 0;
1063 //uint32_t code2 = 0;
1065 fc
= bytebits_to_byte(BitStream
+73, 8);
1066 cardnum
= bytebits_to_byte(BitStream
+81, 16);
1067 code1
= bytebits_to_byte(BitStream
+72,fmtLen
);
1068 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
);
1069 } else if (fmtLen
==45){
1070 fmtLen
=42; //end = 10 bits not 7 like 26 bit fmt
1071 fc
= bytebits_to_byte(BitStream
+53, 10);
1072 cardnum
= bytebits_to_byte(BitStream
+63, 32);
1073 PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Raw: %x%08x%08x%08x", fmtLen
, fc
, cardnum
, rawHi3
, rawHi2
, rawHi
, rawLo
);
1075 cardnum
= bytebits_to_byte(BitStream
+81, 16);
1077 //code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen-32);
1078 //code2 = bytebits_to_byte(BitStream+(size-32),32);
1079 PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %x%08x%08x%08x", fmtLen
, cardnum
, rawHi3
, rawHi2
, rawHi
, rawLo
);
1081 //code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen);
1082 PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %x%08x%08x%08x", fmtLen
, cardnum
, rawHi3
, rawHi2
, rawHi
, rawLo
);
1086 PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx
, 128);
1092 int CmdFSKdemod(const char *Cmd
) //old CmdFSKdemod needs updating
1094 static const int LowTone
[] = {
1095 1, 1, 1, 1, 1, -1, -1, -1, -1, -1,
1096 1, 1, 1, 1, 1, -1, -1, -1, -1, -1,
1097 1, 1, 1, 1, 1, -1, -1, -1, -1, -1,
1098 1, 1, 1, 1, 1, -1, -1, -1, -1, -1,
1099 1, 1, 1, 1, 1, -1, -1, -1, -1, -1
1101 static const int HighTone
[] = {
1102 1, 1, 1, 1, 1, -1, -1, -1, -1,
1103 1, 1, 1, 1, -1, -1, -1, -1,
1104 1, 1, 1, 1, -1, -1, -1, -1,
1105 1, 1, 1, 1, -1, -1, -1, -1,
1106 1, 1, 1, 1, -1, -1, -1, -1,
1107 1, 1, 1, 1, -1, -1, -1, -1, -1,
1110 int lowLen
= sizeof (LowTone
) / sizeof (int);
1111 int highLen
= sizeof (HighTone
) / sizeof (int);
1112 int convLen
= (highLen
> lowLen
) ? highLen
: lowLen
;
1113 uint32_t hi
= 0, lo
= 0;
1116 int minMark
= 0, maxMark
= 0;
1118 for (i
= 0; i
< GraphTraceLen
- convLen
; ++i
) {
1119 int lowSum
= 0, highSum
= 0;
1121 for (j
= 0; j
< lowLen
; ++j
) {
1122 lowSum
+= LowTone
[j
]*GraphBuffer
[i
+j
];
1124 for (j
= 0; j
< highLen
; ++j
) {
1125 highSum
+= HighTone
[j
] * GraphBuffer
[i
+ j
];
1127 lowSum
= abs(100 * lowSum
/ lowLen
);
1128 highSum
= abs(100 * highSum
/ highLen
);
1129 GraphBuffer
[i
] = (highSum
<< 16) | lowSum
;
1132 for(i
= 0; i
< GraphTraceLen
- convLen
- 16; ++i
) {
1133 int lowTot
= 0, highTot
= 0;
1134 // 10 and 8 are f_s divided by f_l and f_h, rounded
1135 for (j
= 0; j
< 10; ++j
) {
1136 lowTot
+= (GraphBuffer
[i
+j
] & 0xffff);
1138 for (j
= 0; j
< 8; j
++) {
1139 highTot
+= (GraphBuffer
[i
+ j
] >> 16);
1141 GraphBuffer
[i
] = lowTot
- highTot
;
1142 if (GraphBuffer
[i
] > maxMark
) maxMark
= GraphBuffer
[i
];
1143 if (GraphBuffer
[i
] < minMark
) minMark
= GraphBuffer
[i
];
1146 GraphTraceLen
-= (convLen
+ 16);
1147 RepaintGraphWindow();
1149 // Find bit-sync (3 lo followed by 3 high) (HID ONLY)
1150 int max
= 0, maxPos
= 0;
1151 for (i
= 0; i
< 6000; ++i
) {
1153 for (j
= 0; j
< 3 * lowLen
; ++j
) {
1154 dec
-= GraphBuffer
[i
+ j
];
1156 for (; j
< 3 * (lowLen
+ highLen
); ++j
) {
1157 dec
+= GraphBuffer
[i
+ j
];
1165 // place start of bit sync marker in graph
1166 GraphBuffer
[maxPos
] = maxMark
;
1167 GraphBuffer
[maxPos
+ 1] = minMark
;
1171 // place end of bit sync marker in graph
1172 GraphBuffer
[maxPos
] = maxMark
;
1173 GraphBuffer
[maxPos
+1] = minMark
;
1175 PrintAndLog("actual data bits start at sample %d", maxPos
);
1176 PrintAndLog("length %d/%d", highLen
, lowLen
);
1178 uint8_t bits
[46] = {0x00};
1180 // find bit pairs and manchester decode them
1181 for (i
= 0; i
< arraylen(bits
) - 1; ++i
) {
1183 for (j
= 0; j
< lowLen
; ++j
) {
1184 dec
-= GraphBuffer
[maxPos
+ j
];
1186 for (; j
< lowLen
+ highLen
; ++j
) {
1187 dec
+= GraphBuffer
[maxPos
+ j
];
1190 // place inter bit marker in graph
1191 GraphBuffer
[maxPos
] = maxMark
;
1192 GraphBuffer
[maxPos
+ 1] = minMark
;
1194 // hi and lo form a 64 bit pair
1195 hi
= (hi
<< 1) | (lo
>> 31);
1197 // store decoded bit as binary (in hi/lo) and text (in bits[])
1205 PrintAndLog("bits: '%s'", bits
);
1206 PrintAndLog("hex: %08x %08x", hi
, lo
);
1211 //attempt to detect the field clock and bit clock for FSK
1212 int CmdFSKfcDetect(const char *Cmd
)
1214 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
1215 size_t size
= getFromGraphBuf(BitStream
);
1217 uint16_t ans
= countFC(BitStream
, size
);
1219 if (g_debugMode
) PrintAndLog("DEBUG: No data found");
1223 fc1
= (ans
>> 8) & 0xFF;
1226 uint8_t rf1
= detectFSKClk(BitStream
, size
, fc1
, fc2
);
1228 if (g_debugMode
) PrintAndLog("DEBUG: Clock detect error");
1231 PrintAndLog("Detected Field Clocks: FC/%d, FC/%d - Bit Clock: RF/%d", fc1
, fc2
, rf1
);
1236 //attempt to detect the bit clock for PSK or NRZ modulations
1237 int CmdDetectNRZpskClockRate(const char *Cmd
)
1239 GetNRZpskClock("",0,0);
1244 //attempt to psk1 or nrz demod graph buffer
1245 //NOTE CURRENTLY RELIES ON PEAKS :(
1246 int PSKnrzDemod(const char *Cmd
, uint8_t verbose
)
1250 sscanf(Cmd
, "%i %i", &clk
, &invert
);
1251 if (invert
!= 0 && invert
!= 1) {
1252 PrintAndLog("Invalid argument: %s", Cmd
);
1255 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
1256 size_t BitLen
= getFromGraphBuf(BitStream
);
1258 errCnt
= pskNRZrawDemod(BitStream
, &BitLen
,&clk
,&invert
);
1259 if (errCnt
<0|| BitLen
<16){ //throw away static - allow 1 and -1 (in case of threshold command first)
1260 if (g_debugMode
==1) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk
,invert
,BitLen
,errCnt
);
1263 if (verbose
) PrintAndLog("Tried PSK/NRZ Demod using Clock: %d - invert: %d - Bits Found: %d",clk
,invert
,BitLen
);
1265 //prime demod buffer for output
1266 setDemodBuf(BitStream
,BitLen
,0);
1269 // Indala 26 bit decode
1271 // optional arguments - same as CmdpskNRZrawDemod (clock & invert)
1272 int CmdIndalaDecode(const char *Cmd
)
1276 ans
= PSKnrzDemod(Cmd
, 0);
1277 } else{ //default to RF/32
1278 ans
= PSKnrzDemod("32", 0);
1283 PrintAndLog("Error1: %d",ans
);
1287 ans
= indala26decode(DemodBuffer
,(size_t *) &DemodBufferLen
, &invert
);
1290 PrintAndLog("Error2: %d",ans
);
1293 char showbits
[251]={0x00};
1296 PrintAndLog("Had to invert bits");
1298 //convert UID to HEX
1299 uint32_t uid1
, uid2
, uid3
, uid4
, uid5
, uid6
, uid7
;
1303 PrintAndLog("BitLen: %d",DemodBufferLen
);
1304 if (DemodBufferLen
==64){
1305 for( idx
=0; idx
<64; idx
++) {
1306 uid1
=(uid1
<<1)|(uid2
>>31);
1307 if (DemodBuffer
[idx
] == 0) {
1316 PrintAndLog("Indala UID=%s (%x%08x)", showbits
, uid1
, uid2
);
1324 for( idx
=0; idx
<DemodBufferLen
; idx
++) {
1325 uid1
=(uid1
<<1)|(uid2
>>31);
1326 uid2
=(uid2
<<1)|(uid3
>>31);
1327 uid3
=(uid3
<<1)|(uid4
>>31);
1328 uid4
=(uid4
<<1)|(uid5
>>31);
1329 uid5
=(uid5
<<1)|(uid6
>>31);
1330 uid6
=(uid6
<<1)|(uid7
>>31);
1331 if (DemodBuffer
[idx
] == 0) {
1341 PrintAndLog("Indala UID=%s (%x%08x%08x%08x%08x%08x%08x)", showbits
, uid1
, uid2
, uid3
, uid4
, uid5
, uid6
, uid7
);
1344 PrintAndLog("DEBUG: printing demodbuffer:");
1351 //attempt to clean psk wave noise after a peak
1352 //NOTE RELIES ON PEAKS :(
1353 int CmdPskClean(const char *Cmd
)
1355 uint8_t bitStream
[MAX_GRAPH_TRACE_LEN
]={0};
1356 size_t bitLen
= getFromGraphBuf(bitStream
);
1357 pskCleanWave(bitStream
, bitLen
);
1358 setGraphBuf(bitStream
, bitLen
);
1363 // takes 2 arguments - clock and invert both as integers
1364 // attempts to demodulate psk only
1365 // prints binary found and saves in demodbuffer for further commands
1366 int CmdpskNRZrawDemod(const char *Cmd
)
1370 errCnt
= PSKnrzDemod(Cmd
, 1);
1373 if (g_debugMode
) PrintAndLog("Error demoding: %d",errCnt
);
1378 PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt
);
1379 PrintAndLog("PSK or NRZ demoded bitstream:");
1380 // Now output the bitstream to the scrollback by line of 16 bits
1384 PrintAndLog("PSK or NRZ demoded bitstream:");
1385 // Now output the bitstream to the scrollback by line of 16 bits
1393 // takes same args as cmdpsknrzrawdemod
1394 int CmdPSK2rawDemod(const char *Cmd
)
1397 errCnt
=PSKnrzDemod(Cmd
, 1);
1399 if (g_debugMode
) PrintAndLog("Error demoding: %d",errCnt
);
1402 psk1TOpsk2(DemodBuffer
, DemodBufferLen
);
1405 PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt
);
1406 PrintAndLog("PSK2 demoded bitstream:");
1407 // Now output the bitstream to the scrollback by line of 16 bits
1411 PrintAndLog("PSK2 demoded bitstream:");
1412 // Now output the bitstream to the scrollback by line of 16 bits
1418 int CmdGrid(const char *Cmd
)
1420 sscanf(Cmd
, "%i %i", &PlotGridX
, &PlotGridY
);
1421 PlotGridXdefault
= PlotGridX
;
1422 PlotGridYdefault
= PlotGridY
;
1423 RepaintGraphWindow();
1427 int CmdHexsamples(const char *Cmd
)
1432 char string_buf
[25];
1433 char* string_ptr
= string_buf
;
1434 uint8_t got
[BIGBUF_SIZE
];
1436 sscanf(Cmd
, "%i %i", &requested
, &offset
);
1438 /* if no args send something */
1439 if (requested
== 0) {
1442 if (offset
+ requested
> sizeof(got
)) {
1443 PrintAndLog("Tried to read past end of buffer, <bytes> + <offset> > %d", BIGBUF_SIZE
);
1447 GetFromBigBuf(got
,requested
,offset
);
1448 WaitForResponse(CMD_ACK
,NULL
);
1451 for (j
= 0; j
< requested
; j
++) {
1453 string_ptr
+= sprintf(string_ptr
, "%02x ", got
[j
]);
1455 *(string_ptr
- 1) = '\0'; // remove the trailing space
1456 PrintAndLog("%s", string_buf
);
1457 string_buf
[0] = '\0';
1458 string_ptr
= string_buf
;
1461 if (j
== requested
- 1 && string_buf
[0] != '\0') { // print any remaining bytes
1462 *(string_ptr
- 1) = '\0';
1463 PrintAndLog("%s", string_buf
);
1464 string_buf
[0] = '\0';
1470 int CmdHide(const char *Cmd
)
1476 int CmdHpf(const char *Cmd
)
1481 for (i
= 10; i
< GraphTraceLen
; ++i
)
1482 accum
+= GraphBuffer
[i
];
1483 accum
/= (GraphTraceLen
- 10);
1484 for (i
= 0; i
< GraphTraceLen
; ++i
)
1485 GraphBuffer
[i
] -= accum
;
1487 RepaintGraphWindow();
1491 int CmdSamples(const char *Cmd
)
1493 uint8_t got
[BIGBUF_SIZE
] = {0x00};
1495 int n
= strtol(Cmd
, NULL
, 0);
1499 if (n
> sizeof(got
))
1502 PrintAndLog("Reading %d samples from device memory\n", n
);
1503 GetFromBigBuf(got
,n
,0);
1504 WaitForResponse(CMD_ACK
,NULL
);
1505 for (int j
= 0; j
< n
; j
++) {
1506 GraphBuffer
[j
] = ((int)got
[j
]) - 128;
1509 RepaintGraphWindow();
1513 int CmdTuneSamples(const char *Cmd
)
1516 printf("\nMeasuring antenna characteristics, please wait...");
1518 UsbCommand c
= {CMD_MEASURE_ANTENNA_TUNING
};
1522 while(!WaitForResponseTimeout(CMD_MEASURED_ANTENNA_TUNING
,&resp
,1000)) {
1526 PrintAndLog("\nNo response from Proxmark. Aborting...");
1532 int vLf125
, vLf134
, vHf
;
1533 vLf125
= resp
.arg
[0] & 0xffff;
1534 vLf134
= resp
.arg
[0] >> 16;
1535 vHf
= resp
.arg
[1] & 0xffff;;
1536 peakf
= resp
.arg
[2] & 0xffff;
1537 peakv
= resp
.arg
[2] >> 16;
1539 PrintAndLog("# LF antenna: %5.2f V @ 125.00 kHz", vLf125
/1000.0);
1540 PrintAndLog("# LF antenna: %5.2f V @ 134.00 kHz", vLf134
/1000.0);
1541 PrintAndLog("# LF optimal: %5.2f V @%9.2f kHz", peakv
/1000.0, 12000.0/(peakf
+1));
1542 PrintAndLog("# HF antenna: %5.2f V @ 13.56 MHz", vHf
/1000.0);
1544 PrintAndLog("# Your LF antenna is unusable.");
1545 else if (peakv
<10000)
1546 PrintAndLog("# Your LF antenna is marginal.");
1548 PrintAndLog("# Your HF antenna is unusable.");
1550 PrintAndLog("# Your HF antenna is marginal.");
1552 for (int i
= 0; i
< 256; i
++) {
1553 GraphBuffer
[i
] = resp
.d
.asBytes
[i
] - 128;
1556 PrintAndLog("Done! Divisor 89 is 134khz, 95 is 125khz.\n");
1558 GraphTraceLen
= 256;
1565 int CmdLoad(const char *Cmd
)
1567 char filename
[FILE_PATH_SIZE
] = {0x00};
1571 if (len
> FILE_PATH_SIZE
) len
= FILE_PATH_SIZE
;
1572 memcpy(filename
, Cmd
, len
);
1574 FILE *f
= fopen(filename
, "r");
1576 PrintAndLog("couldn't open '%s'", filename
);
1582 while (fgets(line
, sizeof (line
), f
)) {
1583 GraphBuffer
[GraphTraceLen
] = atoi(line
);
1587 PrintAndLog("loaded %d samples", GraphTraceLen
);
1588 RepaintGraphWindow();
1592 int CmdLtrim(const char *Cmd
)
1596 for (int i
= ds
; i
< GraphTraceLen
; ++i
)
1597 GraphBuffer
[i
-ds
] = GraphBuffer
[i
];
1598 GraphTraceLen
-= ds
;
1600 RepaintGraphWindow();
1604 // trim graph to input argument length
1605 int CmdRtrim(const char *Cmd
)
1611 RepaintGraphWindow();
1616 * Manchester demodulate a bitstream. The bitstream needs to be already in
1617 * the GraphBuffer as 0 and 1 values
1619 * Give the clock rate as argument in order to help the sync - the algorithm
1620 * resyncs at each pulse anyway.
1622 * Not optimized by any means, this is the 1st time I'm writing this type of
1623 * routine, feel free to improve...
1625 * 1st argument: clock rate (as number of samples per clock rate)
1626 * Typical values can be 64, 32, 128...
1628 int CmdManchesterDemod(const char *Cmd
)
1630 int i
, j
, invert
= 0;
1636 int hithigh
, hitlow
, first
;
1642 /* check if we're inverting output */
1645 PrintAndLog("Inverting output");
1650 while(*Cmd
== ' '); // in case a 2nd argument was given
1653 /* Holds the decoded bitstream: each clock period contains 2 bits */
1654 /* later simplified to 1 bit after manchester decoding. */
1655 /* Add 10 bits to allow for noisy / uncertain traces without aborting */
1656 /* int BitStream[GraphTraceLen*2/clock+10]; */
1658 /* But it does not work if compiling on WIndows: therefore we just allocate a */
1660 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
] = {0};
1662 /* Detect high and lows */
1663 for (i
= 0; i
< GraphTraceLen
; i
++)
1665 if (GraphBuffer
[i
] > high
)
1666 high
= GraphBuffer
[i
];
1667 else if (GraphBuffer
[i
] < low
)
1668 low
= GraphBuffer
[i
];
1672 clock
= GetClock(Cmd
, high
, 1);
1674 int tolerance
= clock
/4;
1676 /* Detect first transition */
1677 /* Lo-Hi (arbitrary) */
1678 /* skip to the first high */
1679 for (i
= 0; i
< GraphTraceLen
; i
++)
1680 if (GraphBuffer
[i
] == high
)
1682 /* now look for the first low */
1683 for (; i
< GraphTraceLen
; i
++)
1685 if (GraphBuffer
[i
] == low
)
1692 /* If we're not working with 1/0s, demod based off clock */
1695 bit
= 0; /* We assume the 1st bit is zero, it may not be
1696 * the case: this routine (I think) has an init problem.
1699 for (; i
< (int)(GraphTraceLen
/ clock
); i
++)
1705 /* Find out if we hit both high and low peaks */
1706 for (j
= 0; j
< clock
; j
++)
1708 if (GraphBuffer
[(i
* clock
) + j
] == high
)
1710 else if (GraphBuffer
[(i
* clock
) + j
] == low
)
1713 /* it doesn't count if it's the first part of our read
1714 because it's really just trailing from the last sequence */
1715 if (first
&& (hithigh
|| hitlow
))
1716 hithigh
= hitlow
= 0;
1720 if (hithigh
&& hitlow
)
1724 /* If we didn't hit both high and low peaks, we had a bit transition */
1725 if (!hithigh
|| !hitlow
)
1728 BitStream
[bit2idx
++] = bit
^ invert
;
1732 /* standard 1/0 bitstream */
1736 /* Then detect duration between 2 successive transitions */
1737 for (bitidx
= 1; i
< GraphTraceLen
; i
++)
1739 if (GraphBuffer
[i
-1] != GraphBuffer
[i
])
1744 // Error check: if bitidx becomes too large, we do not
1745 // have a Manchester encoded bitstream or the clock is really
1747 if (bitidx
> (GraphTraceLen
*2/clock
+8) ) {
1748 PrintAndLog("Error: the clock you gave is probably wrong, aborting.");
1751 // Then switch depending on lc length:
1752 // Tolerance is 1/4 of clock rate (arbitrary)
1753 if (abs(lc
-clock
/2) < tolerance
) {
1754 // Short pulse : either "1" or "0"
1755 BitStream
[bitidx
++]=GraphBuffer
[i
-1];
1756 } else if (abs(lc
-clock
) < tolerance
) {
1757 // Long pulse: either "11" or "00"
1758 BitStream
[bitidx
++]=GraphBuffer
[i
-1];
1759 BitStream
[bitidx
++]=GraphBuffer
[i
-1];
1763 PrintAndLog("Warning: Manchester decode error for pulse width detection.");
1764 PrintAndLog("(too many of those messages mean either the stream is not Manchester encoded, or clock is wrong)");
1768 PrintAndLog("Error: too many detection errors, aborting.");
1775 // At this stage, we now have a bitstream of "01" ("1") or "10" ("0"), parse it into final decoded bitstream
1776 // Actually, we overwrite BitStream with the new decoded bitstream, we just need to be careful
1777 // to stop output at the final bitidx2 value, not bitidx
1778 for (i
= 0; i
< bitidx
; i
+= 2) {
1779 if ((BitStream
[i
] == 0) && (BitStream
[i
+1] == 1)) {
1780 BitStream
[bit2idx
++] = 1 ^ invert
;
1781 } else if ((BitStream
[i
] == 1) && (BitStream
[i
+1] == 0)) {
1782 BitStream
[bit2idx
++] = 0 ^ invert
;
1784 // We cannot end up in this state, this means we are unsynchronized,
1788 PrintAndLog("Unsynchronized, resync...");
1789 PrintAndLog("(too many of those messages mean the stream is not Manchester encoded)");
1793 PrintAndLog("Error: too many decode errors, aborting.");
1800 PrintAndLog("Manchester decoded bitstream");
1801 // Now output the bitstream to the scrollback by line of 16 bits
1802 for (i
= 0; i
< (bit2idx
-16); i
+=16) {
1803 PrintAndLog("%i %i %i %i %i %i %i %i %i %i %i %i %i %i %i %i",
1824 /* Modulate our data into manchester */
1825 int CmdManchesterMod(const char *Cmd
)
1829 int bit
, lastbit
, wave
;
1832 clock
= GetClock(Cmd
, 0, 1);
1836 for (i
= 0; i
< (int)(GraphTraceLen
/ clock
); i
++)
1838 bit
= GraphBuffer
[i
* clock
] ^ 1;
1840 for (j
= 0; j
< (int)(clock
/2); j
++)
1841 GraphBuffer
[(i
* clock
) + j
] = bit
^ lastbit
^ wave
;
1842 for (j
= (int)(clock
/2); j
< clock
; j
++)
1843 GraphBuffer
[(i
* clock
) + j
] = bit
^ lastbit
^ wave
^ 1;
1845 /* Keep track of how we start our wave and if we changed or not this time */
1846 wave
^= bit
^ lastbit
;
1850 RepaintGraphWindow();
1854 int CmdNorm(const char *Cmd
)
1857 int max
= INT_MIN
, min
= INT_MAX
;
1859 for (i
= 10; i
< GraphTraceLen
; ++i
) {
1860 if (GraphBuffer
[i
] > max
)
1861 max
= GraphBuffer
[i
];
1862 if (GraphBuffer
[i
] < min
)
1863 min
= GraphBuffer
[i
];
1867 for (i
= 0; i
< GraphTraceLen
; ++i
) {
1868 GraphBuffer
[i
] = (GraphBuffer
[i
] - ((max
+ min
) / 2)) * 256 /
1870 //marshmelow: adjusted *1000 to *256 to make +/- 128 so demod commands still work
1873 RepaintGraphWindow();
1877 int CmdPlot(const char *Cmd
)
1883 int CmdSave(const char *Cmd
)
1885 char filename
[FILE_PATH_SIZE
] = {0x00};
1889 if (len
> FILE_PATH_SIZE
) len
= FILE_PATH_SIZE
;
1890 memcpy(filename
, Cmd
, len
);
1893 FILE *f
= fopen(filename
, "w");
1895 PrintAndLog("couldn't open '%s'", filename
);
1899 for (i
= 0; i
< GraphTraceLen
; i
++) {
1900 fprintf(f
, "%d\n", GraphBuffer
[i
]);
1903 PrintAndLog("saved to '%s'", Cmd
);
1907 int CmdScale(const char *Cmd
)
1909 CursorScaleFactor
= atoi(Cmd
);
1910 if (CursorScaleFactor
== 0) {
1911 PrintAndLog("bad, can't have zero scale");
1912 CursorScaleFactor
= 1;
1914 RepaintGraphWindow();
1918 int CmdThreshold(const char *Cmd
)
1920 int threshold
= atoi(Cmd
);
1922 for (int i
= 0; i
< GraphTraceLen
; ++i
) {
1923 if (GraphBuffer
[i
] >= threshold
)
1926 GraphBuffer
[i
] = -1;
1928 RepaintGraphWindow();
1932 int CmdDirectionalThreshold(const char *Cmd
)
1934 int8_t upThres
= param_get8(Cmd
, 0);
1935 int8_t downThres
= param_get8(Cmd
, 1);
1937 printf("Applying Up Threshold: %d, Down Threshold: %d\n", upThres
, downThres
);
1939 int lastValue
= GraphBuffer
[0];
1940 GraphBuffer
[0] = 0; // Will be changed at the end, but init 0 as we adjust to last samples value if no threshold kicks in.
1942 for (int i
= 1; i
< GraphTraceLen
; ++i
) {
1943 // Apply first threshold to samples heading up
1944 if (GraphBuffer
[i
] >= upThres
&& GraphBuffer
[i
] > lastValue
)
1946 lastValue
= GraphBuffer
[i
]; // Buffer last value as we overwrite it.
1949 // Apply second threshold to samples heading down
1950 else if (GraphBuffer
[i
] <= downThres
&& GraphBuffer
[i
] < lastValue
)
1952 lastValue
= GraphBuffer
[i
]; // Buffer last value as we overwrite it.
1953 GraphBuffer
[i
] = -1;
1957 lastValue
= GraphBuffer
[i
]; // Buffer last value as we overwrite it.
1958 GraphBuffer
[i
] = GraphBuffer
[i
-1];
1962 GraphBuffer
[0] = GraphBuffer
[1]; // Aline with first edited sample.
1963 RepaintGraphWindow();
1967 int CmdZerocrossings(const char *Cmd
)
1969 // Zero-crossings aren't meaningful unless the signal is zero-mean.
1976 for (int i
= 0; i
< GraphTraceLen
; ++i
) {
1977 if (GraphBuffer
[i
] * sign
>= 0) {
1978 // No change in sign, reproduce the previous sample count.
1980 GraphBuffer
[i
] = lastZc
;
1982 // Change in sign, reset the sample count.
1984 GraphBuffer
[i
] = lastZc
;
1992 RepaintGraphWindow();
1996 static command_t CommandTable
[] =
1998 {"help", CmdHelp
, 1, "This help"},
1999 {"amp", CmdAmp
, 1, "Amplify peaks"},
2000 {"askdemod", Cmdaskdemod
, 1, "<0 or 1> -- Attempt to demodulate simple ASK tags"},
2001 {"askmandemod", Cmdaskmandemod
, 1, "[clock] [invert<0|1>] -- Attempt to demodulate ASK/Manchester tags and output binary (args optional)"},
2002 {"askrawdemod", Cmdaskrawdemod
, 1, "[clock] [invert<0|1>] -- Attempt to demodulate ASK tags and output bin (args optional)"},
2003 {"autocorr", CmdAutoCorr
, 1, "<window length> -- Autocorrelation over window"},
2004 {"biphaserawdecode",CmdBiphaseDecodeRaw
,1,"[offset] [invert<0|1>] Biphase decode bin stream in demod buffer (offset = 0|1 bits to shift the decode start)"},
2005 {"bitsamples", CmdBitsamples
, 0, "Get raw samples as bitstring"},
2006 {"bitstream", CmdBitstream
, 1, "[clock rate] -- Convert waveform into a bitstream"},
2007 {"buffclear", CmdBuffClear
, 1, "Clear sample buffer and graph window"},
2008 {"dec", CmdDec
, 1, "Decimate samples"},
2009 {"detectclock", CmdDetectClockRate
, 1, "Detect ASK clock rate"},
2010 {"fskdemod", CmdFSKdemod
, 1, "Demodulate graph window as a HID FSK"},
2011 {"fskawiddemod", CmdFSKdemodAWID
, 1, "Demodulate graph window as an AWID FSK tag using raw"},
2012 {"fskfcdetect", CmdFSKfcDetect
, 1, "Try to detect the Field Clock of an FSK wave"},
2013 {"fskhiddemod", CmdFSKdemodHID
, 1, "Demodulate graph window as a HID FSK tag using raw"},
2014 {"fskiodemod", CmdFSKdemodIO
, 1, "Demodulate graph window as an IO Prox tag FSK using raw"},
2015 {"fskpyramiddemod",CmdFSKdemodPyramid
,1, "Demodulate graph window as a Pyramid FSK tag using raw"},
2016 {"fskparadoxdemod",CmdFSKdemodParadox
,1, "Demodulate graph window as a Paradox FSK tag using raw"},
2017 {"fskrawdemod", CmdFSKrawdemod
, 1, "[clock rate] [invert] [rchigh] [rclow] Demodulate graph window from FSK to bin (clock = 50)(invert = 1|0)(rchigh = 10)(rclow=8)"},
2018 {"grid", CmdGrid
, 1, "<x> <y> -- overlay grid on graph window, use zero value to turn off either"},
2019 {"hexsamples", CmdHexsamples
, 0, "<bytes> [<offset>] -- Dump big buffer as hex bytes"},
2020 {"hide", CmdHide
, 1, "Hide graph window"},
2021 {"hpf", CmdHpf
, 1, "Remove DC offset from trace"},
2022 {"load", CmdLoad
, 1, "<filename> -- Load trace (to graph window"},
2023 {"ltrim", CmdLtrim
, 1, "<samples> -- Trim samples from left of trace"},
2024 {"rtrim", CmdRtrim
, 1, "<location to end trace> -- Trim samples from right of trace"},
2025 {"mandemod", CmdManchesterDemod
, 1, "[i] [clock rate] -- Manchester demodulate binary stream (option 'i' to invert output)"},
2026 {"manrawdecode", Cmdmandecoderaw
, 1, "Manchester decode binary stream already in graph buffer"},
2027 {"manmod", CmdManchesterMod
, 1, "[clock rate] -- Manchester modulate a binary stream"},
2028 {"norm", CmdNorm
, 1, "Normalize max/min to +/-128"},
2029 {"plot", CmdPlot
, 1, "Show graph window (hit 'h' in window for keystroke help)"},
2030 {"pskclean", CmdPskClean
, 1, "Attempt to clean psk wave"},
2031 {"pskdetectclock",CmdDetectNRZpskClockRate
, 1, "Detect ASK, PSK, or NRZ clock rate"},
2032 {"pskindalademod",CmdIndalaDecode
, 1, "[clock] [invert<0|1>] -- Attempt to demodulate psk1 indala tags and output ID binary & hex (args optional)"},
2033 {"psk1nrzrawdemod",CmdpskNRZrawDemod
, 1, "[clock] [invert<0|1>] -- Attempt to demodulate psk1 or nrz tags and output binary (args optional)"},
2034 {"psk2rawdemod", CmdPSK2rawDemod
, 1, "[clock] [invert<0|1>] -- Attempt to demodulate psk2 tags and output binary (args optional)"},
2035 {"samples", CmdSamples
, 0, "[512 - 40000] -- Get raw samples for graph window"},
2036 {"save", CmdSave
, 1, "<filename> -- Save trace (from graph window)"},
2037 {"scale", CmdScale
, 1, "<int> -- Set cursor display scale"},
2038 {"setdebugmode", CmdSetDebugMode
, 1, "<0|1> -- Turn on or off Debugging Mode for demods"},
2039 {"shiftgraphzero",CmdGraphShiftZero
, 1, "<shift> -- Shift 0 for Graphed wave + or - shift value"},
2040 {"threshold", CmdThreshold
, 1, "<threshold> -- Maximize/minimize every value in the graph window depending on threshold"},
2041 {"dirthreshold", CmdDirectionalThreshold
, 1, "<thres up> <thres down> -- Max rising higher up-thres/ Min falling lower down-thres, keep rest as prev."},
2042 {"tune", CmdTuneSamples
, 0, "Get hw tune samples for graph window"},
2043 {"zerocrossings", CmdZerocrossings
, 1, "Count time between zero-crossings"},
2044 {NULL
, NULL
, 0, NULL
}
2047 int CmdData(const char *Cmd
)
2049 CmdsParse(CommandTable
, Cmd
);
2053 int CmdHelp(const char *Cmd
)
2055 CmdsHelp(CommandTable
);