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
59 for (i
= 0; i
<= (bitLen
-16); i
+=16) {
60 PrintAndLog("%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i",
82 int CmdAmp(const char *Cmd
)
84 int i
, rising
, falling
;
85 int max
= INT_MIN
, min
= INT_MAX
;
87 for (i
= 10; i
< GraphTraceLen
; ++i
) {
88 if (GraphBuffer
[i
] > max
)
90 if (GraphBuffer
[i
] < min
)
96 for (i
= 0; i
< GraphTraceLen
; ++i
) {
97 if (GraphBuffer
[i
+ 1] < GraphBuffer
[i
]) {
104 if (GraphBuffer
[i
+ 1] > GraphBuffer
[i
]) {
106 GraphBuffer
[i
] = min
;
113 RepaintGraphWindow();
118 * Generic command to demodulate ASK.
120 * Argument is convention: positive or negative (High mod means zero
121 * or high mod means one)
123 * Updates the Graph trace with 0/1 values
128 //this method is dependant on all highs and lows to be the same(or clipped) this creates issues[marshmellow] it also ignores the clock
129 int Cmdaskdemod(const char *Cmd
)
132 int c
, high
= 0, low
= 0;
134 // TODO: complain if we do not give 2 arguments here !
135 // (AL - this doesn't make sense! we're only using one argument!!!)
136 sscanf(Cmd
, "%i", &c
);
138 /* Detect high and lows and clock */
140 for (i
= 0; i
< GraphTraceLen
; ++i
)
142 if (GraphBuffer
[i
] > high
)
143 high
= GraphBuffer
[i
];
144 else if (GraphBuffer
[i
] < low
)
145 low
= GraphBuffer
[i
];
149 if (c
!= 0 && c
!= 1) {
150 PrintAndLog("Invalid argument: %s", Cmd
);
154 if (GraphBuffer
[0] > 0) {
155 GraphBuffer
[0] = 1-c
;
159 for (i
= 1; i
< GraphTraceLen
; ++i
) {
160 /* Transitions are detected at each peak
161 * Transitions are either:
162 * - we're low: transition if we hit a high
163 * - we're high: transition if we hit a low
164 * (we need to do it this way because some tags keep high or
165 * low for long periods, others just reach the peak and go
168 //[marhsmellow] change == to >= for high and <= for low for fuzz
169 if ((GraphBuffer
[i
] == high
) && (GraphBuffer
[i
- 1] == c
)) {
170 GraphBuffer
[i
] = 1 - c
;
171 } else if ((GraphBuffer
[i
] == low
) && (GraphBuffer
[i
- 1] == (1 - c
))){
175 GraphBuffer
[i
] = GraphBuffer
[i
- 1];
178 RepaintGraphWindow();
183 void printBitStream(uint8_t BitStream
[], uint32_t bitLen
)
187 PrintAndLog("Too few bits found: %d",bitLen
);
190 if (bitLen
>512) bitLen
=512;
191 for (i
= 0; i
<= (bitLen
-16); i
+=16) {
192 PrintAndLog("%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i",
213 //print EM410x ID in multiple formats
214 void printEM410x(uint64_t id
)
221 for (ii
=5; ii
>0;ii
--){
223 id2lo
=(id2lo
<<1LL) | ((id
& (iii
<< (i
+((ii
-1)*8)))) >> (i
+((ii
-1)*8)));
227 PrintAndLog("EM TAG ID : %010llx", id
);
228 PrintAndLog("Unique TAG ID: %010llx", id2lo
);
229 PrintAndLog("DEZ 8 : %08lld",id
& 0xFFFFFF);
230 PrintAndLog("DEZ 10 : %010lld",id
& 0xFFFFFF);
231 PrintAndLog("DEZ 5.5 : %05lld.%05lld",(id
>>16LL) & 0xFFFF,(id
& 0xFFFF));
232 PrintAndLog("DEZ 3.5A : %03lld.%05lld",(id
>>32ll),(id
& 0xFFFF));
233 PrintAndLog("DEZ 14/IK2 : %014lld",id
);
234 PrintAndLog("DEZ 15/IK3 : %015lld",id2lo
);
235 PrintAndLog("Other : %05lld_%03lld_%08lld",(id
&0xFFFF),((id
>>16LL) & 0xFF),(id
& 0xFFFFFF));
241 //take binary from demod buffer and see if we can find an EM410x ID
242 int CmdEm410xDecode(const char *Cmd
)
245 size_t size
= DemodBufferLen
, idx
=0;
246 id
= Em410xDecode(DemodBuffer
, &size
, &idx
);
248 setDemodBuf(DemodBuffer
, size
, idx
);
250 PrintAndLog("DEBUG: Printing demod buffer:");
261 //takes 2 arguments - clock and invert both as integers
262 //attempts to demodulate ask while decoding manchester
263 //prints binary found and saves in graphbuffer for further commands
264 int Cmdaskmandemod(const char *Cmd
)
268 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
269 sscanf(Cmd
, "%i %i", &clk
, &invert
);
270 if (invert
!= 0 && invert
!= 1) {
271 PrintAndLog("Invalid argument: %s", Cmd
);
275 size_t BitLen
= getFromGraphBuf(BitStream
);
276 if (g_debugMode
==1) PrintAndLog("DEBUG: Bitlen from grphbuff: %d",BitLen
);
278 errCnt
= askmandemod(BitStream
, &BitLen
,&clk
,&invert
);
279 if (errCnt
<0||BitLen
<16){ //if fatal error (or -1)
280 if (g_debugMode
==1) PrintAndLog("no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt
,invert
,BitLen
,clk
);
283 PrintAndLog("\nUsing Clock: %d - Invert: %d - Bits Found: %d",clk
,invert
,BitLen
);
287 PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt
);
289 PrintAndLog("ASK/Manchester decoded bitstream:");
290 // Now output the bitstream to the scrollback by line of 16 bits
291 setDemodBuf(BitStream
,BitLen
,0);
295 lo
= Em410xDecode(BitStream
, &BitLen
, &idx
);
297 //set GraphBuffer for clone or sim command
298 setDemodBuf(BitStream
, BitLen
, idx
);
300 PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx
, BitLen
);
303 PrintAndLog("EM410x pattern found: ");
312 //stricktly take 10 and 01 and convert to 0 and 1
313 int Cmdmandecoderaw(const char *Cmd
)
318 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
320 for (;i
<DemodBufferLen
;++i
){
321 if (DemodBuffer
[i
]>high
) high
=DemodBuffer
[i
];
322 else if(DemodBuffer
[i
]<low
) low
=DemodBuffer
[i
];
323 BitStream
[i
]=DemodBuffer
[i
];
325 if (high
>1 || low
<0 ){
326 PrintAndLog("Error: please raw demod the wave first then mancheseter raw decode");
330 errCnt
=manrawdecode(BitStream
, &size
);
332 PrintAndLog("Too many errors: %d",errCnt
);
335 PrintAndLog("Manchester Decoded - # errors:%d - data:",errCnt
);
336 printBitStream(BitStream
, size
);
340 id
= Em410xDecode(BitStream
, &size
, &idx
);
342 //need to adjust to set bitstream back to manchester encoded data
343 //setDemodBuf(BitStream, size, idx);
353 //take 01 or 10 = 0 and 11 or 00 = 1
354 //takes 2 arguments "offset" default = 0 if 1 it will shift the decode by one bit
355 // and "invert" default = 0 if 1 it will invert output
356 // since it is not like manchester and doesn't have an incorrect bit pattern we
357 // cannot determine if our decode is correct or if it should be shifted by one bit
358 // the argument offset allows us to manually shift if the output is incorrect
359 // (better would be to demod and decode at the same time so we can distinguish large
360 // width waves vs small width waves to help the decode positioning) or askbiphdemod
361 int CmdBiphaseDecodeRaw(const char *Cmd
)
369 sscanf(Cmd
, "%i %i", &offset
, &invert
);
370 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
371 //get graphbuffer & high and low
372 for (;i
<DemodBufferLen
;++i
){
373 if(DemodBuffer
[i
]>high
)high
=DemodBuffer
[i
];
374 else if(DemodBuffer
[i
]<low
)low
=DemodBuffer
[i
];
375 BitStream
[i
]=DemodBuffer
[i
];
377 if (high
>1 || low
<0){
378 PrintAndLog("Error: please raw demod the wave first then decode");
382 errCnt
=BiphaseRawDecode(BitStream
, &size
, offset
, invert
);
384 PrintAndLog("Too many errors attempting to decode: %d",errCnt
);
387 PrintAndLog("Biphase Decoded using offset: %d - # errors:%d - data:",offset
,errCnt
);
388 printBitStream(BitStream
, size
);
389 PrintAndLog("\nif bitstream does not look right try offset=1");
394 //takes 2 arguments - clock and invert both as integers
395 //attempts to demodulate ask only
396 //prints binary found and saves in graphbuffer for further commands
397 int Cmdaskrawdemod(const char *Cmd
)
401 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
402 sscanf(Cmd
, "%i %i", &clk
, &invert
);
403 if (invert
!= 0 && invert
!= 1) {
404 PrintAndLog("Invalid argument: %s", Cmd
);
407 size_t BitLen
= getFromGraphBuf(BitStream
);
409 errCnt
= askrawdemod(BitStream
, &BitLen
,&clk
,&invert
);
410 if (errCnt
==-1||BitLen
<16){ //throw away static - allow 1 and -1 (in case of threshold command first)
411 PrintAndLog("no data found");
412 if (g_debugMode
==1) PrintAndLog("errCnt: %d, BitLen: %d, clk: %d, invert: %d", errCnt
, BitLen
, clk
, invert
);
415 PrintAndLog("Using Clock: %d - invert: %d - Bits Found: %d",clk
,invert
,BitLen
);
417 //move BitStream back to DemodBuffer
418 setDemodBuf(BitStream
,BitLen
,0);
422 PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt
);
424 PrintAndLog("ASK demoded bitstream:");
425 // Now output the bitstream to the scrollback by line of 16 bits
426 printBitStream(BitStream
,BitLen
);
431 int CmdAutoCorr(const char *Cmd
)
433 static int CorrelBuffer
[MAX_GRAPH_TRACE_LEN
];
435 int window
= atoi(Cmd
);
438 PrintAndLog("needs a window");
441 if (window
>= GraphTraceLen
) {
442 PrintAndLog("window must be smaller than trace (%d samples)",
447 PrintAndLog("performing %d correlations", GraphTraceLen
- window
);
449 for (int i
= 0; i
< GraphTraceLen
- window
; ++i
) {
451 for (int j
= 0; j
< window
; ++j
) {
452 sum
+= (GraphBuffer
[j
]*GraphBuffer
[i
+ j
]) / 256;
454 CorrelBuffer
[i
] = sum
;
456 GraphTraceLen
= GraphTraceLen
- window
;
457 memcpy(GraphBuffer
, CorrelBuffer
, GraphTraceLen
* sizeof (int));
459 RepaintGraphWindow();
463 int CmdBitsamples(const char *Cmd
)
468 GetFromBigBuf(got
,sizeof(got
),0);
469 WaitForResponse(CMD_ACK
,NULL
);
471 for (int j
= 0; j
< sizeof(got
); j
++) {
472 for (int k
= 0; k
< 8; k
++) {
473 if(got
[j
] & (1 << (7 - k
))) {
474 GraphBuffer
[cnt
++] = 1;
476 GraphBuffer
[cnt
++] = 0;
481 RepaintGraphWindow();
486 * Convert to a bitstream
488 int CmdBitstream(const char *Cmd
)
496 int hithigh
, hitlow
, first
;
498 /* Detect high and lows and clock */
499 for (i
= 0; i
< GraphTraceLen
; ++i
)
501 if (GraphBuffer
[i
] > high
)
502 high
= GraphBuffer
[i
];
503 else if (GraphBuffer
[i
] < low
)
504 low
= GraphBuffer
[i
];
508 clock
= GetClock(Cmd
, high
, 1);
512 for (i
= 0; i
< (int)(gtl
/ clock
); ++i
)
517 /* Find out if we hit both high and low peaks */
518 for (j
= 0; j
< clock
; ++j
)
520 if (GraphBuffer
[(i
* clock
) + j
] == high
)
522 else if (GraphBuffer
[(i
* clock
) + j
] == low
)
524 /* it doesn't count if it's the first part of our read
525 because it's really just trailing from the last sequence */
526 if (first
&& (hithigh
|| hitlow
))
527 hithigh
= hitlow
= 0;
531 if (hithigh
&& hitlow
)
535 /* If we didn't hit both high and low peaks, we had a bit transition */
536 if (!hithigh
|| !hitlow
)
539 AppendGraph(0, clock
, bit
);
540 // for (j = 0; j < (int)(clock/2); j++)
541 // GraphBuffer[(i * clock) + j] = bit ^ 1;
542 // for (j = (int)(clock/2); j < clock; j++)
543 // GraphBuffer[(i * clock) + j] = bit;
546 RepaintGraphWindow();
550 int CmdBuffClear(const char *Cmd
)
552 UsbCommand c
= {CMD_BUFF_CLEAR
};
558 int CmdDec(const char *Cmd
)
560 for (int i
= 0; i
< (GraphTraceLen
/ 2); ++i
)
561 GraphBuffer
[i
] = GraphBuffer
[i
* 2];
563 PrintAndLog("decimated by 2");
564 RepaintGraphWindow();
569 //shift graph zero up or down based on input + or -
570 int CmdGraphShiftZero(const char *Cmd
)
574 //set options from parameters entered with the command
575 sscanf(Cmd
, "%i", &shift
);
577 for(int i
= 0; i
<GraphTraceLen
; i
++){
578 shiftedVal
=GraphBuffer
[i
]+shift
;
581 else if (shiftedVal
<-127)
583 GraphBuffer
[i
]= shiftedVal
;
589 /* Print our clock rate */
590 // uses data from graphbuffer
591 int CmdDetectClockRate(const char *Cmd
)
594 //int clock = DetectASKClock(0);
595 //PrintAndLog("Auto-detected clock rate: %d", clock);
600 //fsk raw demod and print binary
601 //takes 4 arguments - Clock, invert, rchigh, rclow
602 //defaults: clock = 50, invert=0, rchigh=10, rclow=8 (RF/10 RF/8 (fsk2a))
603 int CmdFSKrawdemod(const char *Cmd
)
605 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
611 //set options from parameters entered with the command
612 sscanf(Cmd
, "%i %i %i %i", &rfLen
, &invert
, &fchigh
, &fclow
);
614 if (strlen(Cmd
)>0 && strlen(Cmd
)<=2) {
616 invert
=1; //if invert option only is used
621 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
622 size_t BitLen
= getFromGraphBuf(BitStream
);
623 //get field clock lengths
625 if (fchigh
==0 || fclow
== 0){
626 fcs
=countFC(BitStream
, BitLen
);
631 fchigh
= (fcs
>> 8) & 0xFF;
635 //get bit clock length
637 rfLen
= detectFSKClk(BitStream
, BitLen
, fchigh
, fclow
);
638 if (rfLen
== 0) rfLen
= 50;
640 PrintAndLog("Args invert: %d - Clock:%d - fchigh:%d - fclow: %d",invert
,rfLen
,fchigh
, fclow
);
641 int size
= fskdemod(BitStream
,BitLen
,(uint8_t)rfLen
,(uint8_t)invert
,(uint8_t)fchigh
,(uint8_t)fclow
);
643 PrintAndLog("FSK decoded bitstream:");
644 setDemodBuf(BitStream
,size
,0);
646 // Now output the bitstream to the scrollback by line of 16 bits
647 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
648 printBitStream(BitStream
,size
);
650 PrintAndLog("no FSK data found");
655 //by marshmellow (based on existing demod + holiman's refactor)
656 //HID Prox demod - FSK RF/50 with preamble of 00011101 (then manchester encoded)
657 //print full HID Prox ID and some bit format details if found
658 int CmdFSKdemodHID(const char *Cmd
)
660 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
661 uint32_t hi2
=0, hi
=0, lo
=0;
663 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
664 size_t BitLen
= getFromGraphBuf(BitStream
);
665 //get binary from fsk wave
666 size_t idx
= HIDdemodFSK(BitStream
,&BitLen
,&hi2
,&hi
,&lo
);
668 if (g_debugMode
) PrintAndLog("DEBUG: Error demoding fsk");
671 if (hi2
==0 && hi
==0 && lo
==0) {
672 if (g_debugMode
) PrintAndLog("DEBUG: Error - no values found");
675 if (hi2
!= 0){ //extra large HID tags
676 PrintAndLog("HID Prox TAG ID: %x%08x%08x (%d)",
677 (unsigned int) hi2
, (unsigned int) hi
, (unsigned int) lo
, (unsigned int) (lo
>>1) & 0xFFFF);
679 else { //standard HID tags <38 bits
682 uint32_t cardnum
= 0;
683 if (((hi
>>5)&1)==1){//if bit 38 is set then < 37 bit format is used
685 lo2
=(((hi
& 31) << 12) | (lo
>>20)); //get bits 21-37 to check for format len bit
687 while(lo2
>1){ //find last bit set to 1 (format len bit)
695 cardnum
= (lo
>>1)&0xFFFF;
699 cardnum
= (lo
>>1)&0xFFFF;
700 fc
= ((hi
&1)<<15)|(lo
>>17);
703 cardnum
= (lo
>>1)&0xFFFFF;
704 fc
= ((hi
&1)<<11)|(lo
>>21);
707 else { //if bit 38 is not set then 37 bit format is used
712 cardnum
= (lo
>>1)&0x7FFFF;
713 fc
= ((hi
&0xF)<<12)|(lo
>>20);
716 PrintAndLog("HID Prox TAG ID: %x%08x (%d) - Format Len: %dbit - FC: %d - Card: %d",
717 (unsigned int) hi
, (unsigned int) lo
, (unsigned int) (lo
>>1) & 0xFFFF,
718 (unsigned int) fmtLen
, (unsigned int) fc
, (unsigned int) cardnum
);
720 setDemodBuf(BitStream
,BitLen
,idx
);
722 PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx
, BitLen
);
728 //by marshmellow (based on existing demod + holiman's refactor)
729 //Paradox Prox demod - FSK RF/50 with preamble of 00011101 (then manchester encoded)
730 //print full Paradox Prox ID and some bit format details if found
731 int CmdFSKdemodParadox(const char *Cmd
)
733 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
734 uint32_t hi2
=0, hi
=0, lo
=0;
736 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
737 size_t BitLen
= getFromGraphBuf(BitStream
);
738 //get binary from fsk wave
739 size_t idx
= ParadoxdemodFSK(BitStream
,&BitLen
,&hi2
,&hi
,&lo
);
741 if (g_debugMode
) PrintAndLog("DEBUG: Error demoding fsk");
744 if (hi2
==0 && hi
==0 && lo
==0){
745 if (g_debugMode
) PrintAndLog("DEBUG: Error - no value found");
748 uint32_t fc
= ((hi
& 0x3)<<6) | (lo
>>26);
749 uint32_t cardnum
= (lo
>>10)&0xFFFF;
751 PrintAndLog("Paradox TAG ID: %x%08x - FC: %d - Card: %d - Checksum: %02x",
752 hi
>>10, (hi
& 0x3)<<26 | (lo
>>10), fc
, cardnum
, (lo
>>2) & 0xFF );
753 setDemodBuf(BitStream
,BitLen
,idx
);
755 PrintAndLog("DEBUG: idx: %d, len: %d, Printing Demod Buffer:", idx
, BitLen
);
763 //IO-Prox demod - FSK RF/64 with preamble of 000000001
764 //print ioprox ID and some format details
765 int CmdFSKdemodIO(const char *Cmd
)
767 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
770 //something in graphbuffer?
771 if (GraphTraceLen
< 65) {
772 if (g_debugMode
)PrintAndLog("DEBUG: not enough samples in GraphBuffer");
775 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
776 size_t BitLen
= getFromGraphBuf(BitStream
);
778 //get binary from fsk wave
779 idx
= IOdemodFSK(BitStream
,BitLen
);
781 if (g_debugMode
==1) PrintAndLog("DEBUG: demoding fsk error: %d", idx
);
786 PrintAndLog("DEBUG: IO Prox Data not found - FSK Bits: %d",BitLen
);
787 if (BitLen
> 92) printBitStream(BitStream
,92);
792 //0 10 20 30 40 50 60
794 //01234567 8 90123456 7 89012345 6 78901234 5 67890123 4 56789012 3 45678901 23
795 //-----------------------------------------------------------------------------
796 //00000000 0 11110000 1 facility 1 version* 1 code*one 1 code*two 1 ???????? 11
798 //XSF(version)facility:codeone+codetwo (raw)
801 if (g_debugMode
==1) PrintAndLog("not enough bits found - bitlen: %d",BitLen
);
804 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]);
805 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]);
806 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]);
807 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]);
808 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]);
809 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]);
810 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]);
812 uint32_t code
= bytebits_to_byte(BitStream
+idx
,32);
813 uint32_t code2
= bytebits_to_byte(BitStream
+idx
+32,32);
814 uint8_t version
= bytebits_to_byte(BitStream
+idx
+27,8); //14,4
815 uint8_t facilitycode
= bytebits_to_byte(BitStream
+idx
+18,8) ;
816 uint16_t number
= (bytebits_to_byte(BitStream
+idx
+36,8)<<8)|(bytebits_to_byte(BitStream
+idx
+45,8)); //36,9
817 PrintAndLog("IO Prox XSF(%02d)%02x:%05d (%08x%08x)",version
,facilitycode
,number
,code
,code2
);
818 setDemodBuf(BitStream
,64,idx
);
820 PrintAndLog("DEBUG: idx: %d, Len: %d, Printing demod buffer:",idx
,64);
828 //AWID Prox demod - FSK RF/50 with preamble of 00000001 (always a 96 bit data stream)
829 //print full AWID Prox ID and some bit format details if found
830 int CmdFSKdemodAWID(const char *Cmd
)
834 //sscanf(Cmd, "%i", &verbose);
836 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
837 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
838 size_t size
= getFromGraphBuf(BitStream
);
840 //get binary from fsk wave
841 int idx
= AWIDdemodFSK(BitStream
, size
);
845 PrintAndLog("DEBUG: Error - not enough samples");
847 PrintAndLog("DEBUG: Error - only noise found - no waves");
849 PrintAndLog("DEBUG: Error - problem during FSK demod");
850 // else if (idx == -3)
851 // PrintAndLog("Error: thought we had a tag but the parity failed");
853 PrintAndLog("DEBUG: Error - AWID preamble not found");
855 PrintAndLog("DEBUG: Error - Second AWID preamble not found");
857 PrintAndLog("DEBUG: Error %d",idx
);
863 // 0 10 20 30 40 50 60
865 // 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
866 // -----------------------------------------------------------------------------
867 // 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
868 // 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
869 // |---26 bit---| |-----117----||-------------142-------------|
870 // b = format bit len, o = odd parity of last 3 bits
871 // f = facility code, c = card number
872 // w = wiegand parity
873 // (26 bit format shown)
875 //get raw ID before removing parities
876 uint32_t rawLo
= bytebits_to_byte(BitStream
+idx
+64,32);
877 uint32_t rawHi
= bytebits_to_byte(BitStream
+idx
+32,32);
878 uint32_t rawHi2
= bytebits_to_byte(BitStream
+idx
,32);
879 setDemodBuf(BitStream
,96,idx
);
881 size
= removeParity(BitStream
, idx
+8, 4, 1, 88);
883 if (g_debugMode
==1) PrintAndLog("DEBUG: Error - at parity check-tag size does not match AWID format");
886 // ok valid card found!
889 // 0 10 20 30 40 50 60
891 // 01234567 8 90123456 7890123456789012 3 456789012345678901234567890123456
892 // -----------------------------------------------------------------------------
893 // 00011010 1 01110101 0000000010001110 1 000000000000000000000000000000000
894 // bbbbbbbb w ffffffff cccccccccccccccc w xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
895 // |26 bit| |-117--| |-----142------|
896 // b = format bit len, o = odd parity of last 3 bits
897 // f = facility code, c = card number
898 // w = wiegand parity
899 // (26 bit format shown)
902 uint32_t cardnum
= 0;
905 uint8_t fmtLen
= bytebits_to_byte(BitStream
,8);
907 fc
= bytebits_to_byte(BitStream
+9, 8);
908 cardnum
= bytebits_to_byte(BitStream
+17, 16);
909 code1
= bytebits_to_byte(BitStream
+8,fmtLen
);
910 PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %x%08x%08x", fmtLen
, fc
, cardnum
, code1
, rawHi2
, rawHi
, rawLo
);
912 cardnum
= bytebits_to_byte(BitStream
+8+(fmtLen
-17), 16);
914 code1
= bytebits_to_byte(BitStream
+8,fmtLen
-32);
915 code2
= bytebits_to_byte(BitStream
+8+(fmtLen
-32),32);
916 PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x%08x, Raw: %x%08x%08x", fmtLen
, cardnum
, code1
, code2
, rawHi2
, rawHi
, rawLo
);
918 code1
= bytebits_to_byte(BitStream
+8,fmtLen
);
919 PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x, Raw: %x%08x%08x", fmtLen
, cardnum
, code1
, rawHi2
, rawHi
, rawLo
);
923 PrintAndLog("DEBUG: idx: %d, Len: %d Printing Demod Buffer:", idx
, 96);
926 //todo - convert hi2, hi, lo to demodbuffer for future sim/clone commands
931 //Pyramid Prox demod - FSK RF/50 with preamble of 0000000000000001 (always a 128 bit data stream)
932 //print full Farpointe Data/Pyramid Prox ID and some bit format details if found
933 int CmdFSKdemodPyramid(const char *Cmd
)
935 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
936 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
937 size_t size
= getFromGraphBuf(BitStream
);
939 //get binary from fsk wave
940 int idx
= PyramiddemodFSK(BitStream
, size
);
944 PrintAndLog("DEBUG: Error - not enough samples");
946 PrintAndLog("DEBUG: Error - only noise found - no waves");
948 PrintAndLog("DEBUG: Error - problem during FSK demod");
950 PrintAndLog("DEBUG: Error - Second Pyramid preamble not found");
952 PrintAndLog("DEBUG: Error - Pyramid preamble not found");
954 PrintAndLog("DEBUG: Error - idx: %d",idx
);
959 // 0 10 20 30 40 50 60
961 // 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3
962 // -----------------------------------------------------------------------------
963 // 0000000 0 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1
964 // premable xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o
966 // 64 70 80 90 100 110 120
968 // 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7
969 // -----------------------------------------------------------------------------
970 // 0000000 1 0000000 1 0000000 1 0110111 0 0011000 1 0000001 0 0001100 1 1001010 0
971 // xxxxxxx o xxxxxxx o xxxxxxx o xswffff o ffffccc o ccccccc o ccccccw o ppppppp o
972 // |---115---||---------71---------|
973 // s = format start bit, o = odd parity of last 7 bits
974 // f = facility code, c = card number
975 // w = wiegand parity, x = extra space for other formats
976 // p = unknown checksum
977 // (26 bit format shown)
979 //get raw ID before removing parities
980 uint32_t rawLo
= bytebits_to_byte(BitStream
+idx
+96,32);
981 uint32_t rawHi
= bytebits_to_byte(BitStream
+idx
+64,32);
982 uint32_t rawHi2
= bytebits_to_byte(BitStream
+idx
+32,32);
983 uint32_t rawHi3
= bytebits_to_byte(BitStream
+idx
,32);
984 setDemodBuf(BitStream
,128,idx
);
986 size
= removeParity(BitStream
, idx
+8, 8, 1, 120);
988 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
);
992 // ok valid card found!
995 // 0 10 20 30 40 50 60 70
997 // 01234567890123456789012345678901234567890123456789012345678901234567890
998 // -----------------------------------------------------------------------
999 // 00000000000000000000000000000000000000000000000000000000000000000000000
1000 // xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
1004 // 1 2 34567890 1234567890123456 7 8901234
1005 // ---------------------------------------
1006 // 1 1 01110011 0000000001000110 0 1001010
1007 // s w ffffffff cccccccccccccccc w ppppppp
1008 // |--115-| |------71------|
1009 // s = format start bit, o = odd parity of last 7 bits
1010 // f = facility code, c = card number
1011 // w = wiegand parity, x = extra space for other formats
1012 // p = unknown checksum
1013 // (26 bit format shown)
1015 //find start bit to get fmtLen
1017 for (j
=0; j
<size
; j
++){
1018 if(BitStream
[j
]) break;
1020 uint8_t fmtLen
= size
-j
-8;
1022 uint32_t cardnum
= 0;
1024 //uint32_t code2 = 0;
1026 fc
= bytebits_to_byte(BitStream
+73, 8);
1027 cardnum
= bytebits_to_byte(BitStream
+81, 16);
1028 code1
= bytebits_to_byte(BitStream
+72,fmtLen
);
1029 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
);
1030 } else if (fmtLen
==45){
1031 fmtLen
=42; //end = 10 bits not 7 like 26 bit fmt
1032 fc
= bytebits_to_byte(BitStream
+53, 10);
1033 cardnum
= bytebits_to_byte(BitStream
+63, 32);
1034 PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Raw: %x%08x%08x%08x", fmtLen
, fc
, cardnum
, rawHi3
, rawHi2
, rawHi
, rawLo
);
1036 cardnum
= bytebits_to_byte(BitStream
+81, 16);
1038 //code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen-32);
1039 //code2 = bytebits_to_byte(BitStream+(size-32),32);
1040 PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %x%08x%08x%08x", fmtLen
, cardnum
, rawHi3
, rawHi2
, rawHi
, rawLo
);
1042 //code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen);
1043 PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %x%08x%08x%08x", fmtLen
, cardnum
, rawHi3
, rawHi2
, rawHi
, rawLo
);
1046 //todo - convert hi2, hi, lo to demodbuffer for future sim/clone commands
1048 PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx
, 128);
1054 int CmdFSKdemod(const char *Cmd
) //old CmdFSKdemod needs updating
1056 static const int LowTone
[] = {
1057 1, 1, 1, 1, 1, -1, -1, -1, -1, -1,
1058 1, 1, 1, 1, 1, -1, -1, -1, -1, -1,
1059 1, 1, 1, 1, 1, -1, -1, -1, -1, -1,
1060 1, 1, 1, 1, 1, -1, -1, -1, -1, -1,
1061 1, 1, 1, 1, 1, -1, -1, -1, -1, -1
1063 static const int HighTone
[] = {
1064 1, 1, 1, 1, 1, -1, -1, -1, -1,
1065 1, 1, 1, 1, -1, -1, -1, -1,
1066 1, 1, 1, 1, -1, -1, -1, -1,
1067 1, 1, 1, 1, -1, -1, -1, -1,
1068 1, 1, 1, 1, -1, -1, -1, -1,
1069 1, 1, 1, 1, -1, -1, -1, -1, -1,
1072 int lowLen
= sizeof (LowTone
) / sizeof (int);
1073 int highLen
= sizeof (HighTone
) / sizeof (int);
1074 int convLen
= (highLen
> lowLen
) ? highLen
: lowLen
;
1075 uint32_t hi
= 0, lo
= 0;
1078 int minMark
= 0, maxMark
= 0;
1080 for (i
= 0; i
< GraphTraceLen
- convLen
; ++i
) {
1081 int lowSum
= 0, highSum
= 0;
1083 for (j
= 0; j
< lowLen
; ++j
) {
1084 lowSum
+= LowTone
[j
]*GraphBuffer
[i
+j
];
1086 for (j
= 0; j
< highLen
; ++j
) {
1087 highSum
+= HighTone
[j
] * GraphBuffer
[i
+ j
];
1089 lowSum
= abs(100 * lowSum
/ lowLen
);
1090 highSum
= abs(100 * highSum
/ highLen
);
1091 GraphBuffer
[i
] = (highSum
<< 16) | lowSum
;
1094 for(i
= 0; i
< GraphTraceLen
- convLen
- 16; ++i
) {
1095 int lowTot
= 0, highTot
= 0;
1096 // 10 and 8 are f_s divided by f_l and f_h, rounded
1097 for (j
= 0; j
< 10; ++j
) {
1098 lowTot
+= (GraphBuffer
[i
+j
] & 0xffff);
1100 for (j
= 0; j
< 8; j
++) {
1101 highTot
+= (GraphBuffer
[i
+ j
] >> 16);
1103 GraphBuffer
[i
] = lowTot
- highTot
;
1104 if (GraphBuffer
[i
] > maxMark
) maxMark
= GraphBuffer
[i
];
1105 if (GraphBuffer
[i
] < minMark
) minMark
= GraphBuffer
[i
];
1108 GraphTraceLen
-= (convLen
+ 16);
1109 RepaintGraphWindow();
1111 // Find bit-sync (3 lo followed by 3 high) (HID ONLY)
1112 int max
= 0, maxPos
= 0;
1113 for (i
= 0; i
< 6000; ++i
) {
1115 for (j
= 0; j
< 3 * lowLen
; ++j
) {
1116 dec
-= GraphBuffer
[i
+ j
];
1118 for (; j
< 3 * (lowLen
+ highLen
); ++j
) {
1119 dec
+= GraphBuffer
[i
+ j
];
1127 // place start of bit sync marker in graph
1128 GraphBuffer
[maxPos
] = maxMark
;
1129 GraphBuffer
[maxPos
+ 1] = minMark
;
1133 // place end of bit sync marker in graph
1134 GraphBuffer
[maxPos
] = maxMark
;
1135 GraphBuffer
[maxPos
+1] = minMark
;
1137 PrintAndLog("actual data bits start at sample %d", maxPos
);
1138 PrintAndLog("length %d/%d", highLen
, lowLen
);
1141 bits
[sizeof(bits
)-1] = '\0';
1143 // find bit pairs and manchester decode them
1144 for (i
= 0; i
< arraylen(bits
) - 1; ++i
) {
1146 for (j
= 0; j
< lowLen
; ++j
) {
1147 dec
-= GraphBuffer
[maxPos
+ j
];
1149 for (; j
< lowLen
+ highLen
; ++j
) {
1150 dec
+= GraphBuffer
[maxPos
+ j
];
1153 // place inter bit marker in graph
1154 GraphBuffer
[maxPos
] = maxMark
;
1155 GraphBuffer
[maxPos
+ 1] = minMark
;
1157 // hi and lo form a 64 bit pair
1158 hi
= (hi
<< 1) | (lo
>> 31);
1160 // store decoded bit as binary (in hi/lo) and text (in bits[])
1168 PrintAndLog("bits: '%s'", bits
);
1169 PrintAndLog("hex: %08x %08x", hi
, lo
);
1174 //attempt to detect the field clock and bit clock for FSK
1175 int CmdFSKfcDetect(const char *Cmd
)
1177 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
1178 size_t size
= getFromGraphBuf(BitStream
);
1180 uint16_t ans
= countFC(BitStream
, size
);
1182 if (g_debugMode
) PrintAndLog("DEBUG: No data found");
1186 fc1
= (ans
>> 8) & 0xFF;
1189 uint8_t rf1
= detectFSKClk(BitStream
, size
, fc1
, fc2
);
1191 if (g_debugMode
) PrintAndLog("DEBUG: Clock detect error");
1194 PrintAndLog("Detected Field Clocks: FC/%d, FC/%d - Bit Clock: RF/%d", fc1
, fc2
, rf1
);
1198 int CmdDetectNRZpskClockRate(const char *Cmd
)
1200 GetNRZpskClock("",0,0);
1204 int PSKnrzDemod(const char *Cmd
)
1208 sscanf(Cmd
, "%i %i", &clk
, &invert
);
1209 if (invert
!= 0 && invert
!= 1) {
1210 PrintAndLog("Invalid argument: %s", Cmd
);
1213 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
1214 size_t BitLen
= getFromGraphBuf(BitStream
);
1216 errCnt
= pskNRZrawDemod(BitStream
, &BitLen
,&clk
,&invert
);
1217 if (errCnt
<0|| BitLen
<16){ //throw away static - allow 1 and -1 (in case of threshold command first)
1218 if (g_debugMode
==1) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk
,invert
,BitLen
,errCnt
);
1221 PrintAndLog("Tried PSK/NRZ Demod using Clock: %d - invert: %d - Bits Found: %d",clk
,invert
,BitLen
);
1223 //prime demod buffer for output
1224 setDemodBuf(BitStream
,BitLen
,0);
1227 // Indala 26 bit decode
1229 // optional arguments - same as CmdpskNRZrawDemod (clock & invert)
1230 int CmdIndalaDecode(const char *Cmd
)
1234 ans
= PSKnrzDemod(Cmd
);
1235 } else{ //default to RF/32
1236 ans
= PSKnrzDemod("32");
1241 PrintAndLog("Error1: %d",ans
);
1245 ans
= indala26decode(DemodBuffer
,(size_t *) &DemodBufferLen
, &invert
);
1248 PrintAndLog("Error2: %d",ans
);
1254 PrintAndLog("Had to invert bits");
1256 //convert UID to HEX
1257 uint32_t uid1
, uid2
, uid3
, uid4
, uid5
, uid6
, uid7
;
1261 PrintAndLog("BitLen: %d",DemodBufferLen
);
1262 if (DemodBufferLen
==64){
1263 for( idx
=0; idx
<64; idx
++) {
1264 uid1
=(uid1
<<1)|(uid2
>>31);
1265 if (DemodBuffer
[idx
] == 0) {
1274 PrintAndLog("Indala UID=%s (%x%08x)", showbits
, uid1
, uid2
);
1282 for( idx
=0; idx
<DemodBufferLen
; idx
++) {
1283 uid1
=(uid1
<<1)|(uid2
>>31);
1284 uid2
=(uid2
<<1)|(uid3
>>31);
1285 uid3
=(uid3
<<1)|(uid4
>>31);
1286 uid4
=(uid4
<<1)|(uid5
>>31);
1287 uid5
=(uid5
<<1)|(uid6
>>31);
1288 uid6
=(uid6
<<1)|(uid7
>>31);
1289 if (DemodBuffer
[idx
] == 0) {
1299 PrintAndLog("Indala UID=%s (%x%08x%08x%08x%08x%08x%08x)", showbits
, uid1
, uid2
, uid3
, uid4
, uid5
, uid6
, uid7
);
1304 int CmdPskClean(const char *Cmd
)
1306 uint8_t bitStream
[MAX_GRAPH_TRACE_LEN
]={0};
1307 size_t bitLen
= getFromGraphBuf(bitStream
);
1308 pskCleanWave(bitStream
, bitLen
);
1309 setGraphBuf(bitStream
, bitLen
);
1314 //takes 2 arguments - clock and invert both as integers
1315 //attempts to demodulate ask only
1316 //prints binary found and saves in graphbuffer for further commands
1317 int CmdpskNRZrawDemod(const char *Cmd
)
1321 errCnt
= PSKnrzDemod(Cmd
);
1324 if (g_debugMode
) PrintAndLog("Error demoding: %d",errCnt
);
1329 PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt
);
1330 PrintAndLog("PSK or NRZ demoded bitstream:");
1331 // Now output the bitstream to the scrollback by line of 16 bits
1335 PrintAndLog("PSK or NRZ demoded bitstream:");
1336 // Now output the bitstream to the scrollback by line of 16 bits
1343 int CmdGrid(const char *Cmd
)
1345 sscanf(Cmd
, "%i %i", &PlotGridX
, &PlotGridY
);
1346 PlotGridXdefault
= PlotGridX
;
1347 PlotGridYdefault
= PlotGridY
;
1348 RepaintGraphWindow();
1352 int CmdHexsamples(const char *Cmd
)
1357 char string_buf
[25];
1358 char* string_ptr
= string_buf
;
1361 sscanf(Cmd
, "%i %i", &requested
, &offset
);
1363 /* if no args send something */
1364 if (requested
== 0) {
1367 if (offset
+ requested
> sizeof(got
)) {
1368 PrintAndLog("Tried to read past end of buffer, <bytes> + <offset> > 40000");
1372 GetFromBigBuf(got
,requested
,offset
);
1373 WaitForResponse(CMD_ACK
,NULL
);
1376 for (j
= 0; j
< requested
; j
++) {
1378 string_ptr
+= sprintf(string_ptr
, "%02x ", got
[j
]);
1380 *(string_ptr
- 1) = '\0'; // remove the trailing space
1381 PrintAndLog("%s", string_buf
);
1382 string_buf
[0] = '\0';
1383 string_ptr
= string_buf
;
1386 if (j
== requested
- 1 && string_buf
[0] != '\0') { // print any remaining bytes
1387 *(string_ptr
- 1) = '\0';
1388 PrintAndLog("%s", string_buf
);
1389 string_buf
[0] = '\0';
1395 int CmdHide(const char *Cmd
)
1401 int CmdHpf(const char *Cmd
)
1406 for (i
= 10; i
< GraphTraceLen
; ++i
)
1407 accum
+= GraphBuffer
[i
];
1408 accum
/= (GraphTraceLen
- 10);
1409 for (i
= 0; i
< GraphTraceLen
; ++i
)
1410 GraphBuffer
[i
] -= accum
;
1412 RepaintGraphWindow();
1416 int CmdSamples(const char *Cmd
)
1420 int n
= strtol(Cmd
, NULL
, 0);
1424 if (n
> sizeof(got
))
1427 PrintAndLog("Reading %d samples from device memory\n", n
);
1428 GetFromBigBuf(got
,n
,0);
1429 WaitForResponse(CMD_ACK
,NULL
);
1430 for (int j
= 0; j
< n
; j
++) {
1431 GraphBuffer
[j
] = ((int)got
[j
]) - 128;
1434 RepaintGraphWindow();
1438 int CmdTuneSamples(const char *Cmd
)
1441 printf("\nMeasuring antenna characteristics, please wait...");
1443 UsbCommand c
= {CMD_MEASURE_ANTENNA_TUNING
};
1447 while(!WaitForResponseTimeout(CMD_MEASURED_ANTENNA_TUNING
,&resp
,1000)) {
1451 PrintAndLog("\nNo response from Proxmark. Aborting...");
1457 int vLf125
, vLf134
, vHf
;
1458 vLf125
= resp
.arg
[0] & 0xffff;
1459 vLf134
= resp
.arg
[0] >> 16;
1460 vHf
= resp
.arg
[1] & 0xffff;;
1461 peakf
= resp
.arg
[2] & 0xffff;
1462 peakv
= resp
.arg
[2] >> 16;
1464 PrintAndLog("# LF antenna: %5.2f V @ 125.00 kHz", vLf125
/1000.0);
1465 PrintAndLog("# LF antenna: %5.2f V @ 134.00 kHz", vLf134
/1000.0);
1466 PrintAndLog("# LF optimal: %5.2f V @%9.2f kHz", peakv
/1000.0, 12000.0/(peakf
+1));
1467 PrintAndLog("# HF antenna: %5.2f V @ 13.56 MHz", vHf
/1000.0);
1469 PrintAndLog("# Your LF antenna is unusable.");
1470 else if (peakv
<10000)
1471 PrintAndLog("# Your LF antenna is marginal.");
1473 PrintAndLog("# Your HF antenna is unusable.");
1475 PrintAndLog("# Your HF antenna is marginal.");
1477 for (int i
= 0; i
< 256; i
++) {
1478 GraphBuffer
[i
] = resp
.d
.asBytes
[i
] - 128;
1481 PrintAndLog("Done! Divisor 89 is 134khz, 95 is 125khz.\n");
1483 GraphTraceLen
= 256;
1490 int CmdLoad(const char *Cmd
)
1492 char filename
[FILE_PATH_SIZE
] = {0x00};
1496 if (len
> FILE_PATH_SIZE
) len
= FILE_PATH_SIZE
;
1497 memcpy(filename
, Cmd
, len
);
1499 FILE *f
= fopen(filename
, "r");
1501 PrintAndLog("couldn't open '%s'", filename
);
1507 while (fgets(line
, sizeof (line
), f
)) {
1508 GraphBuffer
[GraphTraceLen
] = atoi(line
);
1512 PrintAndLog("loaded %d samples", GraphTraceLen
);
1513 RepaintGraphWindow();
1517 int CmdLtrim(const char *Cmd
)
1521 for (int i
= ds
; i
< GraphTraceLen
; ++i
)
1522 GraphBuffer
[i
-ds
] = GraphBuffer
[i
];
1523 GraphTraceLen
-= ds
;
1525 RepaintGraphWindow();
1529 // trim graph to input argument length
1530 int CmdRtrim(const char *Cmd
)
1536 RepaintGraphWindow();
1541 * Manchester demodulate a bitstream. The bitstream needs to be already in
1542 * the GraphBuffer as 0 and 1 values
1544 * Give the clock rate as argument in order to help the sync - the algorithm
1545 * resyncs at each pulse anyway.
1547 * Not optimized by any means, this is the 1st time I'm writing this type of
1548 * routine, feel free to improve...
1550 * 1st argument: clock rate (as number of samples per clock rate)
1551 * Typical values can be 64, 32, 128...
1553 int CmdManchesterDemod(const char *Cmd
)
1555 int i
, j
, invert
= 0;
1561 int hithigh
, hitlow
, first
;
1567 /* check if we're inverting output */
1570 PrintAndLog("Inverting output");
1575 while(*Cmd
== ' '); // in case a 2nd argument was given
1578 /* Holds the decoded bitstream: each clock period contains 2 bits */
1579 /* later simplified to 1 bit after manchester decoding. */
1580 /* Add 10 bits to allow for noisy / uncertain traces without aborting */
1581 /* int BitStream[GraphTraceLen*2/clock+10]; */
1583 /* But it does not work if compiling on WIndows: therefore we just allocate a */
1585 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
] = {0};
1587 /* Detect high and lows */
1588 for (i
= 0; i
< GraphTraceLen
; i
++)
1590 if (GraphBuffer
[i
] > high
)
1591 high
= GraphBuffer
[i
];
1592 else if (GraphBuffer
[i
] < low
)
1593 low
= GraphBuffer
[i
];
1597 clock
= GetClock(Cmd
, high
, 1);
1599 int tolerance
= clock
/4;
1601 /* Detect first transition */
1602 /* Lo-Hi (arbitrary) */
1603 /* skip to the first high */
1604 for (i
= 0; i
< GraphTraceLen
; i
++)
1605 if (GraphBuffer
[i
] == high
)
1607 /* now look for the first low */
1608 for (; i
< GraphTraceLen
; i
++)
1610 if (GraphBuffer
[i
] == low
)
1617 /* If we're not working with 1/0s, demod based off clock */
1620 bit
= 0; /* We assume the 1st bit is zero, it may not be
1621 * the case: this routine (I think) has an init problem.
1624 for (; i
< (int)(GraphTraceLen
/ clock
); i
++)
1630 /* Find out if we hit both high and low peaks */
1631 for (j
= 0; j
< clock
; j
++)
1633 if (GraphBuffer
[(i
* clock
) + j
] == high
)
1635 else if (GraphBuffer
[(i
* clock
) + j
] == low
)
1638 /* it doesn't count if it's the first part of our read
1639 because it's really just trailing from the last sequence */
1640 if (first
&& (hithigh
|| hitlow
))
1641 hithigh
= hitlow
= 0;
1645 if (hithigh
&& hitlow
)
1649 /* If we didn't hit both high and low peaks, we had a bit transition */
1650 if (!hithigh
|| !hitlow
)
1653 BitStream
[bit2idx
++] = bit
^ invert
;
1657 /* standard 1/0 bitstream */
1661 /* Then detect duration between 2 successive transitions */
1662 for (bitidx
= 1; i
< GraphTraceLen
; i
++)
1664 if (GraphBuffer
[i
-1] != GraphBuffer
[i
])
1669 // Error check: if bitidx becomes too large, we do not
1670 // have a Manchester encoded bitstream or the clock is really
1672 if (bitidx
> (GraphTraceLen
*2/clock
+8) ) {
1673 PrintAndLog("Error: the clock you gave is probably wrong, aborting.");
1676 // Then switch depending on lc length:
1677 // Tolerance is 1/4 of clock rate (arbitrary)
1678 if (abs(lc
-clock
/2) < tolerance
) {
1679 // Short pulse : either "1" or "0"
1680 BitStream
[bitidx
++]=GraphBuffer
[i
-1];
1681 } else if (abs(lc
-clock
) < tolerance
) {
1682 // Long pulse: either "11" or "00"
1683 BitStream
[bitidx
++]=GraphBuffer
[i
-1];
1684 BitStream
[bitidx
++]=GraphBuffer
[i
-1];
1688 PrintAndLog("Warning: Manchester decode error for pulse width detection.");
1689 PrintAndLog("(too many of those messages mean either the stream is not Manchester encoded, or clock is wrong)");
1693 PrintAndLog("Error: too many detection errors, aborting.");
1700 // At this stage, we now have a bitstream of "01" ("1") or "10" ("0"), parse it into final decoded bitstream
1701 // Actually, we overwrite BitStream with the new decoded bitstream, we just need to be careful
1702 // to stop output at the final bitidx2 value, not bitidx
1703 for (i
= 0; i
< bitidx
; i
+= 2) {
1704 if ((BitStream
[i
] == 0) && (BitStream
[i
+1] == 1)) {
1705 BitStream
[bit2idx
++] = 1 ^ invert
;
1706 } else if ((BitStream
[i
] == 1) && (BitStream
[i
+1] == 0)) {
1707 BitStream
[bit2idx
++] = 0 ^ invert
;
1709 // We cannot end up in this state, this means we are unsynchronized,
1713 PrintAndLog("Unsynchronized, resync...");
1714 PrintAndLog("(too many of those messages mean the stream is not Manchester encoded)");
1718 PrintAndLog("Error: too many decode errors, aborting.");
1725 PrintAndLog("Manchester decoded bitstream");
1726 // Now output the bitstream to the scrollback by line of 16 bits
1727 for (i
= 0; i
< (bit2idx
-16); i
+=16) {
1728 PrintAndLog("%i %i %i %i %i %i %i %i %i %i %i %i %i %i %i %i",
1749 /* Modulate our data into manchester */
1750 int CmdManchesterMod(const char *Cmd
)
1754 int bit
, lastbit
, wave
;
1757 clock
= GetClock(Cmd
, 0, 1);
1761 for (i
= 0; i
< (int)(GraphTraceLen
/ clock
); i
++)
1763 bit
= GraphBuffer
[i
* clock
] ^ 1;
1765 for (j
= 0; j
< (int)(clock
/2); j
++)
1766 GraphBuffer
[(i
* clock
) + j
] = bit
^ lastbit
^ wave
;
1767 for (j
= (int)(clock
/2); j
< clock
; j
++)
1768 GraphBuffer
[(i
* clock
) + j
] = bit
^ lastbit
^ wave
^ 1;
1770 /* Keep track of how we start our wave and if we changed or not this time */
1771 wave
^= bit
^ lastbit
;
1775 RepaintGraphWindow();
1779 int CmdNorm(const char *Cmd
)
1782 int max
= INT_MIN
, min
= INT_MAX
;
1784 for (i
= 10; i
< GraphTraceLen
; ++i
) {
1785 if (GraphBuffer
[i
] > max
)
1786 max
= GraphBuffer
[i
];
1787 if (GraphBuffer
[i
] < min
)
1788 min
= GraphBuffer
[i
];
1792 for (i
= 0; i
< GraphTraceLen
; ++i
) {
1793 GraphBuffer
[i
] = (GraphBuffer
[i
] - ((max
+ min
) / 2)) * 256 /
1795 //marshmelow: adjusted *1000 to *256 to make +/- 128 so demod commands still work
1798 RepaintGraphWindow();
1802 int CmdPlot(const char *Cmd
)
1808 int CmdSave(const char *Cmd
)
1810 char filename
[FILE_PATH_SIZE
] = {0x00};
1814 if (len
> FILE_PATH_SIZE
) len
= FILE_PATH_SIZE
;
1815 memcpy(filename
, Cmd
, len
);
1818 FILE *f
= fopen(filename
, "w");
1820 PrintAndLog("couldn't open '%s'", filename
);
1824 for (i
= 0; i
< GraphTraceLen
; i
++) {
1825 fprintf(f
, "%d\n", GraphBuffer
[i
]);
1828 PrintAndLog("saved to '%s'", Cmd
);
1832 int CmdScale(const char *Cmd
)
1834 CursorScaleFactor
= atoi(Cmd
);
1835 if (CursorScaleFactor
== 0) {
1836 PrintAndLog("bad, can't have zero scale");
1837 CursorScaleFactor
= 1;
1839 RepaintGraphWindow();
1843 int CmdThreshold(const char *Cmd
)
1845 int threshold
= atoi(Cmd
);
1847 for (int i
= 0; i
< GraphTraceLen
; ++i
) {
1848 if (GraphBuffer
[i
] >= threshold
)
1851 GraphBuffer
[i
] = -1;
1853 RepaintGraphWindow();
1857 int CmdDirectionalThreshold(const char *Cmd
)
1859 int8_t upThres
= param_get8(Cmd
, 0);
1860 int8_t downThres
= param_get8(Cmd
, 1);
1862 printf("Applying Up Threshold: %d, Down Threshold: %d\n", upThres
, downThres
);
1864 int lastValue
= GraphBuffer
[0];
1865 GraphBuffer
[0] = 0; // Will be changed at the end, but init 0 as we adjust to last samples value if no threshold kicks in.
1867 for (int i
= 1; i
< GraphTraceLen
; ++i
) {
1868 // Apply first threshold to samples heading up
1869 if (GraphBuffer
[i
] >= upThres
&& GraphBuffer
[i
] > lastValue
)
1871 lastValue
= GraphBuffer
[i
]; // Buffer last value as we overwrite it.
1874 // Apply second threshold to samples heading down
1875 else if (GraphBuffer
[i
] <= downThres
&& GraphBuffer
[i
] < lastValue
)
1877 lastValue
= GraphBuffer
[i
]; // Buffer last value as we overwrite it.
1878 GraphBuffer
[i
] = -1;
1882 lastValue
= GraphBuffer
[i
]; // Buffer last value as we overwrite it.
1883 GraphBuffer
[i
] = GraphBuffer
[i
-1];
1887 GraphBuffer
[0] = GraphBuffer
[1]; // Aline with first edited sample.
1888 RepaintGraphWindow();
1892 int CmdZerocrossings(const char *Cmd
)
1894 // Zero-crossings aren't meaningful unless the signal is zero-mean.
1901 for (int i
= 0; i
< GraphTraceLen
; ++i
) {
1902 if (GraphBuffer
[i
] * sign
>= 0) {
1903 // No change in sign, reproduce the previous sample count.
1905 GraphBuffer
[i
] = lastZc
;
1907 // Change in sign, reset the sample count.
1909 GraphBuffer
[i
] = lastZc
;
1917 RepaintGraphWindow();
1921 static command_t CommandTable
[] =
1923 {"help", CmdHelp
, 1, "This help"},
1924 {"amp", CmdAmp
, 1, "Amplify peaks"},
1925 {"askdemod", Cmdaskdemod
, 1, "<0 or 1> -- Attempt to demodulate simple ASK tags"},
1926 {"askmandemod", Cmdaskmandemod
, 1, "[clock] [invert<0|1>] -- Attempt to demodulate ASK/Manchester tags and output binary (args optional)"},
1927 {"askrawdemod", Cmdaskrawdemod
, 1, "[clock] [invert<0|1>] -- Attempt to demodulate ASK tags and output bin (args optional)"},
1928 {"autocorr", CmdAutoCorr
, 1, "<window length> -- Autocorrelation over window"},
1929 {"biphaserawdecode",CmdBiphaseDecodeRaw
,1,"[offset] [invert<0|1>] Biphase decode bin stream in demod buffer (offset = 0|1 bits to shift the decode start)"},
1930 {"bitsamples", CmdBitsamples
, 0, "Get raw samples as bitstring"},
1931 {"bitstream", CmdBitstream
, 1, "[clock rate] -- Convert waveform into a bitstream"},
1932 {"buffclear", CmdBuffClear
, 1, "Clear sample buffer and graph window"},
1933 {"dec", CmdDec
, 1, "Decimate samples"},
1934 {"detectclock", CmdDetectClockRate
, 1, "Detect ASK clock rate"},
1935 {"fskdemod", CmdFSKdemod
, 1, "Demodulate graph window as a HID FSK"},
1936 {"fskawiddemod", CmdFSKdemodAWID
, 1, "Demodulate graph window as an AWID FSK tag using raw"},
1937 {"fskfcdetect", CmdFSKfcDetect
, 1, "Try to detect the Field Clock of an FSK wave"},
1938 {"fskhiddemod", CmdFSKdemodHID
, 1, "Demodulate graph window as a HID FSK tag using raw"},
1939 {"fskiodemod", CmdFSKdemodIO
, 1, "Demodulate graph window as an IO Prox tag FSK using raw"},
1940 {"fskpyramiddemod",CmdFSKdemodPyramid
,1, "Demodulate graph window as a Pyramid FSK tag using raw"},
1941 {"fskparadoxdemod",CmdFSKdemodParadox
,1, "Demodulate graph window as a Paradox FSK tag using raw"},
1942 {"fskrawdemod", CmdFSKrawdemod
, 1, "[clock rate] [invert] [rchigh] [rclow] Demodulate graph window from FSK to bin (clock = 50)(invert = 1|0)(rchigh = 10)(rclow=8)"},
1943 {"grid", CmdGrid
, 1, "<x> <y> -- overlay grid on graph window, use zero value to turn off either"},
1944 {"hexsamples", CmdHexsamples
, 0, "<bytes> [<offset>] -- Dump big buffer as hex bytes"},
1945 {"hide", CmdHide
, 1, "Hide graph window"},
1946 {"hpf", CmdHpf
, 1, "Remove DC offset from trace"},
1947 {"load", CmdLoad
, 1, "<filename> -- Load trace (to graph window"},
1948 {"ltrim", CmdLtrim
, 1, "<samples> -- Trim samples from left of trace"},
1949 {"rtrim", CmdRtrim
, 1, "<location to end trace> -- Trim samples from right of trace"},
1950 {"mandemod", CmdManchesterDemod
, 1, "[i] [clock rate] -- Manchester demodulate binary stream (option 'i' to invert output)"},
1951 {"manrawdecode", Cmdmandecoderaw
, 1, "Manchester decode binary stream already in graph buffer"},
1952 {"manmod", CmdManchesterMod
, 1, "[clock rate] -- Manchester modulate a binary stream"},
1953 {"norm", CmdNorm
, 1, "Normalize max/min to +/-128"},
1954 {"plot", CmdPlot
, 1, "Show graph window (hit 'h' in window for keystroke help)"},
1955 {"pskclean", CmdPskClean
, 1, "Attempt to clean psk wave"},
1956 {"pskdetectclock",CmdDetectNRZpskClockRate
, 1, "Detect ASK, PSK, or NRZ clock rate"},
1957 {"pskindalademod",CmdIndalaDecode
, 1, "[clock] [invert<0|1>] -- Attempt to demodulate psk indala tags and output ID binary & hex (args optional)"},
1958 {"psknrzrawdemod",CmdpskNRZrawDemod
, 1, "[clock] [invert<0|1>] -- Attempt to demodulate psk or nrz tags and output binary (args optional)"},
1959 {"samples", CmdSamples
, 0, "[512 - 40000] -- Get raw samples for graph window"},
1960 {"save", CmdSave
, 1, "<filename> -- Save trace (from graph window)"},
1961 {"scale", CmdScale
, 1, "<int> -- Set cursor display scale"},
1962 {"setdebugmode", CmdSetDebugMode
, 1, "<0|1> -- Turn on or off Debugging Mode for demods"},
1963 {"shiftgraphzero",CmdGraphShiftZero
, 1, "<shift> -- Shift 0 for Graphed wave + or - shift value"},
1964 {"threshold", CmdThreshold
, 1, "<threshold> -- Maximize/minimize every value in the graph window depending on threshold"},
1965 {"dirthreshold", CmdDirectionalThreshold
, 1, "<thres up> <thres down> -- Max rising higher up-thres/ Min falling lower down-thres, keep rest as prev."},
1966 {"tune", CmdTuneSamples
, 0, "Get hw tune samples for graph window"},
1967 {"zerocrossings", CmdZerocrossings
, 1, "Count time between zero-crossings"},
1968 {NULL
, NULL
, 0, NULL
}
1971 int CmdData(const char *Cmd
)
1973 CmdsParse(CommandTable
, Cmd
);
1977 int CmdHelp(const char *Cmd
)
1979 CmdsHelp(CommandTable
);