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"
27 uint8_t DemodBuffer
[MAX_DEMOD_BUF_LEN
];
30 static int CmdHelp(const char *Cmd
);
32 //set the demod buffer with given array of binary (one bit per byte)
34 void setDemodBuf(uint8_t *buff
, size_t size
, size_t startIdx
)
39 if ( size
>= MAX_DEMOD_BUF_LEN
)
40 size
= MAX_DEMOD_BUF_LEN
;
43 for (; i
< size
; i
++){
44 DemodBuffer
[i
]=buff
[startIdx
++];
50 int CmdSetDebugMode(const char *Cmd
)
53 sscanf(Cmd
, "%i", &demod
);
54 g_debugMode
=(uint8_t)demod
;
59 void printDemodBuff(void)
62 int bitLen
= DemodBufferLen
;
64 PrintAndLog("no bits found in demod buffer");
67 if (bitLen
>512) bitLen
=512; //max output to 512 bits if we have more - should be plenty
69 // ensure equally divided by 16
72 for (i
= 0; i
<= (bitLen
-16); i
+=16) {
73 PrintAndLog("%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i",
95 int CmdPrintDemodBuff(const char *Cmd
)
98 char printBuff
[512]={0x00};
99 uint8_t numBits
= DemodBufferLen
& 0xFFF0;
100 sscanf(Cmd
, "%c", &hex
);
102 PrintAndLog("Usage: data printdemodbuffer [x]");
103 PrintAndLog("Options: ");
104 PrintAndLog(" h This help");
105 PrintAndLog(" x output in hex (omit for binary output)");
109 numBits
= binarraytohex(printBuff
, (char *)DemodBuffer
, numBits
);
110 if (numBits
==0) return 0;
111 PrintAndLog("DemodBuffer: %s",printBuff
);
117 int CmdAmp(const char *Cmd
)
119 int i
, rising
, falling
;
120 int max
= INT_MIN
, min
= INT_MAX
;
122 for (i
= 10; i
< GraphTraceLen
; ++i
) {
123 if (GraphBuffer
[i
] > max
)
124 max
= GraphBuffer
[i
];
125 if (GraphBuffer
[i
] < min
)
126 min
= GraphBuffer
[i
];
131 for (i
= 0; i
< GraphTraceLen
; ++i
) {
132 if (GraphBuffer
[i
+ 1] < GraphBuffer
[i
]) {
134 GraphBuffer
[i
] = max
;
139 if (GraphBuffer
[i
+ 1] > GraphBuffer
[i
]) {
141 GraphBuffer
[i
] = min
;
148 RepaintGraphWindow();
153 * Generic command to demodulate ASK.
155 * Argument is convention: positive or negative (High mod means zero
156 * or high mod means one)
158 * Updates the Graph trace with 0/1 values
161 * c : 0 or 1 (or invert)
163 //this method ignores the clock
165 //this function strictly converts highs and lows to 1s and 0s for each sample in the graphbuffer
166 int Cmdaskdemod(const char *Cmd
)
169 int c
, high
= 0, low
= 0;
171 sscanf(Cmd
, "%i", &c
);
173 /* Detect high and lows */
174 for (i
= 0; i
< GraphTraceLen
; ++i
)
176 if (GraphBuffer
[i
] > high
)
177 high
= GraphBuffer
[i
];
178 else if (GraphBuffer
[i
] < low
)
179 low
= GraphBuffer
[i
];
183 if (c
!= 0 && c
!= 1) {
184 PrintAndLog("Invalid argument: %s", Cmd
);
188 if (GraphBuffer
[0] > 0) {
189 GraphBuffer
[0] = 1-c
;
193 for (i
= 1; i
< GraphTraceLen
; ++i
) {
194 /* Transitions are detected at each peak
195 * Transitions are either:
196 * - we're low: transition if we hit a high
197 * - we're high: transition if we hit a low
198 * (we need to do it this way because some tags keep high or
199 * low for long periods, others just reach the peak and go
202 //[marhsmellow] change == to >= for high and <= for low for fuzz
203 if ((GraphBuffer
[i
] >= high
) && (GraphBuffer
[i
- 1] == c
)) {
204 GraphBuffer
[i
] = 1 - c
;
205 } else if ((GraphBuffer
[i
] <= low
) && (GraphBuffer
[i
- 1] == (1 - c
))){
209 GraphBuffer
[i
] = GraphBuffer
[i
- 1];
212 RepaintGraphWindow();
216 //this function strictly converts >1 to 1 and <1 to 0 for each sample in the graphbuffer
217 int CmdGetBitStream(const char *Cmd
)
221 for (i
= 0; i
< GraphTraceLen
; i
++) {
222 if (GraphBuffer
[i
] >= 1) {
228 RepaintGraphWindow();
234 void printBitStream(uint8_t BitStream
[], uint32_t bitLen
)
238 PrintAndLog("Too few bits found: %d",bitLen
);
241 if (bitLen
>512) bitLen
=512;
243 // ensure equally divided by 16
247 for (i
= 0; i
<= (bitLen
-16); i
+=16) {
248 PrintAndLog("%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i",
270 //print 64 bit EM410x ID in multiple formats
271 void printEM410x(uint32_t hi
, uint64_t id
)
278 for (ii
=5; ii
>0;ii
--){
280 id2lo
=(id2lo
<<1LL) | ((id
& (iii
<< (i
+((ii
-1)*8)))) >> (i
+((ii
-1)*8)));
284 //output 88 bit em id
285 PrintAndLog("\nEM TAG ID : %06x%016llx", hi
, id
);
287 //output 40 bit em id
288 PrintAndLog("\nEM TAG ID : %010llx", id
);
289 PrintAndLog("Unique TAG ID : %010llx", id2lo
);
290 PrintAndLog("\nPossible de-scramble patterns");
291 PrintAndLog("HoneyWell IdentKey {");
292 PrintAndLog("DEZ 8 : %08lld",id
& 0xFFFFFF);
293 PrintAndLog("DEZ 10 : %010lld",id
& 0xFFFFFFFF);
294 PrintAndLog("DEZ 5.5 : %05lld.%05lld",(id
>>16LL) & 0xFFFF,(id
& 0xFFFF));
295 PrintAndLog("DEZ 3.5A : %03lld.%05lld",(id
>>32ll),(id
& 0xFFFF));
296 PrintAndLog("DEZ 3.5B : %03lld.%05lld",(id
& 0xFF000000) >> 24,(id
& 0xFFFF));
297 PrintAndLog("DEZ 3.5C : %03lld.%05lld",(id
& 0xFF0000) >> 16,(id
& 0xFFFF));
298 PrintAndLog("DEZ 14/IK2 : %014lld",id
);
299 PrintAndLog("DEZ 15/IK3 : %015lld",id2lo
);
300 PrintAndLog("DEZ 20/ZK : %02lld%02lld%02lld%02lld%02lld%02lld%02lld%02lld%02lld%02lld",
301 (id2lo
& 0xf000000000) >> 36,
302 (id2lo
& 0x0f00000000) >> 32,
303 (id2lo
& 0x00f0000000) >> 28,
304 (id2lo
& 0x000f000000) >> 24,
305 (id2lo
& 0x0000f00000) >> 20,
306 (id2lo
& 0x00000f0000) >> 16,
307 (id2lo
& 0x000000f000) >> 12,
308 (id2lo
& 0x0000000f00) >> 8,
309 (id2lo
& 0x00000000f0) >> 4,
310 (id2lo
& 0x000000000f)
312 uint64_t paxton
= (((id
>>32) << 24) | (id
& 0xffffff)) + 0x143e00;
313 PrintAndLog("}\nOther : %05lld_%03lld_%08lld",(id
&0xFFFF),((id
>>16LL) & 0xFF),(id
& 0xFFFFFF));
314 PrintAndLog("Pattern Paxton : %lld [0x%llX]", paxton
, paxton
);
316 uint32_t p1id
= (id
& 0xFFFFFF);
317 uint8_t arr
[32] = {0x00};
320 for (; i
< 24; ++i
, --j
){
321 arr
[i
] = (p1id
>> i
) & 1;
355 PrintAndLog("Pattern 1 : %d [0x%X]", p1
, p1
);
357 uint16_t sebury1
= id
& 0xFFFF;
358 uint8_t sebury2
= (id
>> 16) & 0x7F;
359 uint32_t sebury3
= id
& 0x7FFFFF;
360 PrintAndLog("Pattern Sebury : %d %d %d [0x%X 0x%X 0x%X]", sebury1
, sebury2
, sebury3
, sebury1
, sebury2
, sebury3
);
367 int AskEm410xDemod(const char *Cmd
, uint32_t *hi
, uint64_t *lo
)
369 int ans
= ASKmanDemod(Cmd
, FALSE
, FALSE
);
373 if (Em410xDecode(DemodBuffer
,(size_t *) &DemodBufferLen
, &idx
, hi
, lo
)){
375 PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx
, DemodBufferLen
);
383 //takes 3 arguments - clock, invert and maxErr as integers
384 //attempts to demodulate ask while decoding manchester
385 //prints binary found and saves in graphbuffer for further commands
386 int CmdAskEM410xDemod(const char *Cmd
)
388 char cmdp
= param_getchar(Cmd
, 0);
389 if (strlen(Cmd
) > 10 || cmdp
== 'h' || cmdp
== 'H') {
390 PrintAndLog("Usage: data askem410xdemod [clock] <0|1> [maxError]");
391 PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
392 PrintAndLog(" <invert>, 1 for invert output");
393 PrintAndLog(" [set maximum allowed errors], default = 100.");
395 PrintAndLog(" sample: data askem410xdemod = demod an EM410x Tag ID from GraphBuffer");
396 PrintAndLog(" : data askem410xdemod 32 = demod an EM410x Tag ID from GraphBuffer using a clock of RF/32");
397 PrintAndLog(" : data askem410xdemod 32 1 = demod an EM410x Tag ID from GraphBuffer using a clock of RF/32 and inverting data");
398 PrintAndLog(" : data askem410xdemod 1 = demod an EM410x Tag ID from GraphBuffer while inverting data");
399 PrintAndLog(" : data askem410xdemod 64 1 0 = demod an EM410x Tag ID from GraphBuffer using a clock of RF/64 and inverting data and allowing 0 demod errors");
404 if (AskEm410xDemod(Cmd
, &hi
, &lo
)) {
405 PrintAndLog("EM410x pattern found: ");
412 int ASKmanDemod(const char *Cmd
, bool verbose
, bool emSearch
)
418 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
419 sscanf(Cmd
, "%i %i %i", &clk
, &invert
, &maxErr
);
420 if (invert
!= 0 && invert
!= 1) {
421 PrintAndLog("Invalid argument: %s", Cmd
);
428 size_t BitLen
= getFromGraphBuf(BitStream
);
429 if (g_debugMode
==1) PrintAndLog("DEBUG: Bitlen from grphbuff: %d",BitLen
);
430 if (BitLen
==0) return 0;
432 errCnt
= askmandemod(BitStream
, &BitLen
, &clk
, &invert
, maxErr
);
433 if (errCnt
<0||BitLen
<16){ //if fatal error (or -1)
434 if (g_debugMode
==1) PrintAndLog("no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt
,invert
,BitLen
,clk
);
437 if (verbose
|| g_debugMode
) PrintAndLog("\nUsing Clock: %d - Invert: %d - Bits Found: %d",clk
,invert
,BitLen
);
441 if (verbose
|| g_debugMode
) PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt
);
443 if (verbose
|| g_debugMode
) PrintAndLog("ASK/Manchester decoded bitstream:");
444 // Now output the bitstream to the scrollback by line of 16 bits
445 setDemodBuf(BitStream
,BitLen
,0);
446 if (verbose
|| g_debugMode
) printDemodBuff();
451 if (Em410xDecode(BitStream
, &BitLen
, &idx
, &hi
, &lo
)){
452 //set GraphBuffer for clone or sim command
453 setDemodBuf(BitStream
, BitLen
, idx
);
455 PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx
, BitLen
);
458 if (verbose
) PrintAndLog("EM410x pattern found: ");
459 if (verbose
) printEM410x(hi
, lo
);
467 //takes 3 arguments - clock, invert, maxErr as integers
468 //attempts to demodulate ask while decoding manchester
469 //prints binary found and saves in graphbuffer for further commands
470 int Cmdaskmandemod(const char *Cmd
)
472 char cmdp
= param_getchar(Cmd
, 0);
473 if (strlen(Cmd
) > 10 || cmdp
== 'h' || cmdp
== 'H') {
474 PrintAndLog("Usage: data rawdemod am [clock] <0|1> [maxError]");
475 PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
476 PrintAndLog(" <invert>, 1 for invert output");
477 PrintAndLog(" [set maximum allowed errors], default = 100.");
479 PrintAndLog(" sample: data rawdemod am = demod an ask/manchester tag from GraphBuffer");
480 PrintAndLog(" : data rawdemod am 32 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32");
481 PrintAndLog(" : data rawdemod am 32 1 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32 and inverting data");
482 PrintAndLog(" : data rawdemod am 1 = demod an ask/manchester tag from GraphBuffer while inverting data");
483 PrintAndLog(" : data rawdemod am 64 1 0 = demod an ask/manchester tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
486 return ASKmanDemod(Cmd
, TRUE
, TRUE
);
491 //stricktly take 10 and 01 and convert to 0 and 1
492 int Cmdmandecoderaw(const char *Cmd
)
498 char cmdp
= param_getchar(Cmd
, 0);
499 if (strlen(Cmd
) > 1 || cmdp
== 'h' || cmdp
== 'H') {
500 PrintAndLog("Usage: data manrawdecode");
501 PrintAndLog(" Takes 10 and 01 and converts to 0 and 1 respectively");
502 PrintAndLog(" --must have binary sequence in demodbuffer (run data askrawdemod first)");
504 PrintAndLog(" sample: data manrawdecode = decode manchester bitstream from the demodbuffer");
507 if (DemodBufferLen
==0) return 0;
508 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
510 for (;i
<DemodBufferLen
;++i
){
511 if (DemodBuffer
[i
]>high
) high
=DemodBuffer
[i
];
512 else if(DemodBuffer
[i
]<low
) low
=DemodBuffer
[i
];
513 BitStream
[i
]=DemodBuffer
[i
];
515 if (high
>1 || low
<0 ){
516 PrintAndLog("Error: please raw demod the wave first then manchester raw decode");
520 errCnt
=manrawdecode(BitStream
, &size
);
522 PrintAndLog("Too many errors: %d",errCnt
);
525 PrintAndLog("Manchester Decoded - # errors:%d - data:",errCnt
);
526 printBitStream(BitStream
, size
);
531 if (Em410xDecode(BitStream
, &size
, &idx
, &hi
, &id
)){
532 //need to adjust to set bitstream back to manchester encoded data
533 //setDemodBuf(BitStream, size, idx);
543 //take 01 or 10 = 0 and 11 or 00 = 1
544 //takes 2 arguments "offset" default = 0 if 1 it will shift the decode by one bit
545 // and "invert" default = 0 if 1 it will invert output
546 // since it is not like manchester and doesn't have an incorrect bit pattern we
547 // cannot determine if our decode is correct or if it should be shifted by one bit
548 // the argument offset allows us to manually shift if the output is incorrect
549 // (better would be to demod and decode at the same time so we can distinguish large
550 // width waves vs small width waves to help the decode positioning) or askbiphdemod
551 int CmdBiphaseDecodeRaw(const char *Cmd
)
554 int offset
=0, invert
=0, maxErr
=20, errCnt
=0;
555 char cmdp
= param_getchar(Cmd
, 0);
556 if (strlen(Cmd
) > 3 || cmdp
== 'h' || cmdp
== 'H') {
557 PrintAndLog("Usage: data biphaserawdecode [offset] [invert] [maxErr]");
558 PrintAndLog(" Converts 10 or 01 to 1 and 11 or 00 to 0");
559 PrintAndLog(" --must have binary sequence in demodbuffer (run data askrawdemod first)");
560 PrintAndLog(" --invert for Conditional Dephase Encoding (CDP) AKA Differential Manchester");
562 PrintAndLog(" [offset <0|1>], set to 0 not to adjust start position or to 1 to adjust decode start position");
563 PrintAndLog(" [invert <0|1>], set to 1 to invert output");
564 PrintAndLog(" [maxErr int], set max errors tolerated - default=20");
566 PrintAndLog(" sample: data biphaserawdecode = decode biphase bitstream from the demodbuffer");
567 PrintAndLog(" sample: data biphaserawdecode 1 1 = decode biphase bitstream from the demodbuffer, set offset, and invert output");
570 sscanf(Cmd
, "%i %i %i", &offset
, &invert
, &maxErr
);
571 if (DemodBufferLen
==0){
572 PrintAndLog("DemodBuffer Empty - run 'data rawdemod ar' first");
575 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
576 memcpy(BitStream
, DemodBuffer
, DemodBufferLen
);
577 size
= DemodBufferLen
;
578 errCnt
=BiphaseRawDecode(BitStream
, &size
, offset
, invert
);
580 PrintAndLog("Error during decode:%d", errCnt
);
584 PrintAndLog("Too many errors attempting to decode: %d",errCnt
);
589 PrintAndLog("# Errors found during Demod (shown as 77 in bit stream): %d",errCnt
);
591 PrintAndLog("Biphase Decoded using offset: %d - # invert:%d - data:",offset
,invert
);
592 printBitStream(BitStream
, size
);
594 if (offset
) setDemodBuf(DemodBuffer
,DemodBufferLen
-offset
, offset
); //remove first bit from raw demod
598 // set demod buffer back to raw after biphase demod
599 void setBiphasetoRawDemodBuf(uint8_t *BitStream
, size_t size
)
601 uint8_t rawStream
[512]={0x00};
605 PrintAndLog("ERROR - Biphase Demod Buffer overrun");
608 for (size_t idx
=0; idx
<size
; idx
++){
610 rawStream
[i
++] = curPhase
;
611 rawStream
[i
++] = curPhase
;
614 rawStream
[i
++] = curPhase
;
615 rawStream
[i
++] = curPhase
^ 1;
618 setDemodBuf(rawStream
,i
,0);
623 //takes 4 arguments - clock, invert, maxErr as integers and amplify as char
624 //attempts to demodulate ask only
625 //prints binary found and saves in graphbuffer for further commands
626 int ASKrawDemod(const char *Cmd
, bool verbose
)
632 char amp
= param_getchar(Cmd
, 0);
633 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
634 sscanf(Cmd
, "%i %i %i %c", &clk
, &invert
, &maxErr
, &
);
636 if (invert
!= 0 && invert
!= 1) {
637 if (verbose
|| g_debugMode
) PrintAndLog("Invalid argument: %s", Cmd
);
644 if (amp
== 'a' || amp
== 'A') askAmp
=1;
645 size_t BitLen
= getFromGraphBuf(BitStream
);
646 if (BitLen
==0) return 0;
648 errCnt
= askrawdemod(BitStream
, &BitLen
, &clk
, &invert
, maxErr
, askAmp
);
649 if (errCnt
==-1||BitLen
<16){ //throw away static - allow 1 and -1 (in case of threshold command first)
650 if (verbose
|| g_debugMode
) PrintAndLog("no data found");
651 if (g_debugMode
) PrintAndLog("errCnt: %d, BitLen: %d, clk: %d, invert: %d", errCnt
, BitLen
, clk
, invert
);
654 if (verbose
|| g_debugMode
) PrintAndLog("Using Clock: %d - invert: %d - Bits Found: %d", clk
, invert
, BitLen
);
656 //move BitStream back to DemodBuffer
657 setDemodBuf(BitStream
,BitLen
,0);
660 if (errCnt
>0 && (verbose
|| g_debugMode
)){
661 PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d", errCnt
);
663 if (verbose
|| g_debugMode
){
664 PrintAndLog("ASK demoded bitstream:");
665 // Now output the bitstream to the scrollback by line of 16 bits
666 printBitStream(BitStream
,BitLen
);
672 // - ASK Demod then Biphase decode GraphBuffer samples
673 int ASKbiphaseDemod(const char *Cmd
, bool verbose
)
675 //ask raw demod GraphBuffer first
676 int offset
=0, clk
=0, invert
=0, maxErr
=0, ans
=0;
677 ans
= sscanf(Cmd
, "%i %i %i %i", &offset
, &clk
, &invert
, &maxErr
);
680 ans
= ASKrawDemod(Cmd
+2, FALSE
);
682 ans
= ASKrawDemod(Cmd
, FALSE
);
684 if (g_debugMode
|| verbose
) PrintAndLog("Error AskrawDemod: %d", ans
);
688 //attempt to Biphase decode DemodBuffer
689 size_t size
= DemodBufferLen
;
690 uint8_t BitStream
[MAX_DEMOD_BUF_LEN
];
691 memcpy(BitStream
, DemodBuffer
, DemodBufferLen
);
693 int errCnt
= BiphaseRawDecode(BitStream
, &size
, offset
, invert
);
695 if (g_debugMode
|| verbose
) PrintAndLog("Error BiphaseRawDecode: %d", errCnt
);
698 if (errCnt
> maxErr
) {
699 if (g_debugMode
|| verbose
) PrintAndLog("Error BiphaseRawDecode too many errors: %d", errCnt
);
702 //success set DemodBuffer and return
703 setDemodBuf(BitStream
, size
, 0);
704 if (g_debugMode
|| verbose
){
705 PrintAndLog("Biphase Decoded using offset: %d - # errors:%d - data:",offset
,errCnt
);
710 //by marshmellow - see ASKbiphaseDemod
711 int Cmdaskbiphdemod(const char *Cmd
)
713 char cmdp
= param_getchar(Cmd
, 0);
714 if (strlen(Cmd
) > 12 || cmdp
== 'h' || cmdp
== 'H') {
715 PrintAndLog("Usage: data rawdemod ab [offset] [clock] <invert> [maxError] <amplify>");
716 PrintAndLog(" [offset], offset to begin biphase, default=0");
717 PrintAndLog(" [set clock as integer] optional, if not set, autodetect");
718 PrintAndLog(" <invert>, 1 to invert output");
719 PrintAndLog(" [set maximum allowed errors], default = 100");
720 PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp");
721 PrintAndLog(" NOTE: <invert> can be entered as second or third argument");
722 PrintAndLog(" NOTE: <amplify> can be entered as first, second or last argument");
723 PrintAndLog(" NOTE: any other arg must have previous args set to work");
725 PrintAndLog(" NOTE: --invert for Conditional Dephase Encoding (CDP) AKA Differential Manchester");
727 PrintAndLog(" sample: data rawdemod ab = demod an ask/biph tag from GraphBuffer");
728 PrintAndLog(" : data rawdemod ab a = demod an ask/biph tag from GraphBuffer, amplified");
729 PrintAndLog(" : data rawdemod ab 1 32 = demod an ask/biph tag from GraphBuffer using an offset of 1 and a clock of RF/32");
730 PrintAndLog(" : data rawdemod ab 0 32 1 = demod an ask/biph tag from GraphBuffer using a clock of RF/32 and inverting data");
731 PrintAndLog(" : data rawdemod ab 0 1 = demod an ask/biph tag from GraphBuffer while inverting data");
732 PrintAndLog(" : data rawdemod ab 0 64 1 0 = demod an ask/biph tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
733 PrintAndLog(" : data rawdemod ab 0 64 1 0 a = demod an ask/biph tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors, and amp");
736 return ASKbiphaseDemod(Cmd
, TRUE
);
740 //attempts to demodulate and identify a G_Prox_II verex/chubb card
741 //WARNING: if it fails during some points it will destroy the DemodBuffer data
742 // but will leave the GraphBuffer intact.
743 //if successful it will push askraw data back to demod buffer ready for emulation
744 int CmdG_Prox_II_Demod(const char *Cmd
)
746 if (!ASKbiphaseDemod(Cmd
, FALSE
)){
747 if (g_debugMode
) PrintAndLog("ASKbiphaseDemod failed 1st try");
750 size_t size
= DemodBufferLen
;
751 //call lfdemod.c demod for gProxII
752 int ans
= gProxII_Demod(DemodBuffer
, &size
);
754 if (g_debugMode
) PrintAndLog("Error gProxII_Demod");
758 uint32_t ByteStream
[65] = {0x00};
763 size_t startIdx
= ans
+ 6; //start after preamble
764 for (size_t idx
= 0; idx
<size
-6; idx
++){
765 if ((idx
+1) % 5 == 0){
766 //spacer bit - should be 0
767 if (DemodBuffer
[startIdx
+idx
] != 0) {
768 if (g_debugMode
) PrintAndLog("Error spacer not 0: %d, pos: %d",DemodBuffer
[startIdx
+idx
],startIdx
+idx
);
773 if (keyCnt
<8){ //lsb first
774 xorKey
= xorKey
| (DemodBuffer
[startIdx
+idx
]<<keyCnt
);
776 if (keyCnt
==8 && g_debugMode
) PrintAndLog("xorKey Found: %02x", xorKey
);
780 ByteStream
[ByteCnt
] = ByteStream
[ByteCnt
] | (DemodBuffer
[startIdx
+idx
]<<bitCnt
);
782 if (bitCnt
% 8 == 0){
783 if (g_debugMode
) PrintAndLog("byte %d: %02x",ByteCnt
,ByteStream
[ByteCnt
]);
788 for (uint8_t i
= 0; i
< ByteCnt
; i
++){
789 ByteStream
[i
] ^= xorKey
; //xor
790 if (g_debugMode
) PrintAndLog("byte %d after xor: %02x", i
, ByteStream
[i
]);
792 //now ByteStream contains 64 bytes of decrypted raw tag data
794 uint8_t fmtLen
= ByteStream
[0]>>2;
797 uint32_t raw1
= bytebits_to_byte(DemodBuffer
+ans
,32);
798 uint32_t raw2
= bytebits_to_byte(DemodBuffer
+ans
+32, 32);
799 uint32_t raw3
= bytebits_to_byte(DemodBuffer
+ans
+64, 32);
802 FC
= ((ByteStream
[3] & 0x7F)<<7) | (ByteStream
[4]>>1);
803 Card
= ((ByteStream
[4]&1)<<19) | (ByteStream
[5]<<11) | (ByteStream
[6]<<3) | (ByteStream
[7]>>5);
804 PrintAndLog("G-Prox-II Found: FmtLen %d, FC %d, Card %d",fmtLen
,FC
,Card
);
805 } else if(fmtLen
==26){
806 FC
= ((ByteStream
[3] & 0x7F)<<1) | (ByteStream
[4]>>7);
807 Card
= ((ByteStream
[4]&0x7F)<<9) | (ByteStream
[5]<<1) | (ByteStream
[6]>>7);
808 PrintAndLog("G-Prox-II Found: FmtLen %d, FC %d, Card %d",fmtLen
,FC
,Card
);
810 PrintAndLog("Unknown G-Prox-II Fmt Found: FmtLen %d",fmtLen
);
812 PrintAndLog("Raw: %08x%08x%08x", raw1
,raw2
,raw3
);
813 setDemodBuf(DemodBuffer
+ans
, 96, 0);
817 //by marshmellow - see ASKrawDemod
818 int Cmdaskrawdemod(const char *Cmd
)
820 char cmdp
= param_getchar(Cmd
, 0);
821 if (strlen(Cmd
) > 12 || cmdp
== 'h' || cmdp
== 'H') {
822 PrintAndLog("Usage: data rawdemod ar [clock] <invert> [maxError] [amplify]");
823 PrintAndLog(" [set clock as integer] optional, if not set, autodetect");
824 PrintAndLog(" <invert>, 1 to invert output");
825 PrintAndLog(" [set maximum allowed errors], default = 100");
826 PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp");
828 PrintAndLog(" sample: data rawdemod ar = demod an ask tag from GraphBuffer");
829 PrintAndLog(" : data rawdemod ar a = demod an ask tag from GraphBuffer, amplified");
830 PrintAndLog(" : data rawdemod ar 32 = demod an ask tag from GraphBuffer using a clock of RF/32");
831 PrintAndLog(" : data rawdemod ar 32 1 = demod an ask tag from GraphBuffer using a clock of RF/32 and inverting data");
832 PrintAndLog(" : data rawdemod ar 1 = demod an ask tag from GraphBuffer while inverting data");
833 PrintAndLog(" : data rawdemod ar 64 1 0 = demod an ask tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
834 PrintAndLog(" : data rawdemod ar 64 1 0 a = demod an ask tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors, and amp");
837 return ASKrawDemod(Cmd
, TRUE
);
840 int AutoCorrelate(int window
, bool SaveGrph
, bool verbose
)
842 static int CorrelBuffer
[MAX_GRAPH_TRACE_LEN
];
843 size_t Correlation
= 0;
846 if (verbose
) PrintAndLog("performing %d correlations", GraphTraceLen
- window
);
847 for (int i
= 0; i
< GraphTraceLen
- window
; ++i
) {
849 for (int j
= 0; j
< window
; ++j
) {
850 sum
+= (GraphBuffer
[j
]*GraphBuffer
[i
+ j
]) / 256;
852 CorrelBuffer
[i
] = sum
;
853 if (sum
>= maxSum
-100 && sum
<= maxSum
+100){
855 Correlation
= i
-lastMax
;
857 if (sum
> maxSum
) maxSum
= sum
;
858 } else if (sum
> maxSum
){
864 //try again with wider margin
865 for (int i
= 0; i
< GraphTraceLen
- window
; i
++){
866 if (CorrelBuffer
[i
] >= maxSum
-(maxSum
*0.05) && CorrelBuffer
[i
] <= maxSum
+(maxSum
*0.05)){
868 Correlation
= i
-lastMax
;
870 //if (CorrelBuffer[i] > maxSum) maxSum = sum;
874 if (verbose
&& Correlation
> 0) PrintAndLog("Possible Correlation: %d samples",Correlation
);
877 GraphTraceLen
= GraphTraceLen
- window
;
878 memcpy(GraphBuffer
, CorrelBuffer
, GraphTraceLen
* sizeof (int));
879 RepaintGraphWindow();
884 int usage_data_autocorr(void)
887 PrintAndLog("Usage: data autocorr [window] [g]");
888 PrintAndLog("Options: ");
889 PrintAndLog(" h This help");
890 PrintAndLog(" [window] window length for correlation - default = 4000");
891 PrintAndLog(" g save back to GraphBuffer (overwrite)");
895 int CmdAutoCorr(const char *Cmd
)
897 char cmdp
= param_getchar(Cmd
, 0);
898 if (cmdp
== 'h' || cmdp
== 'H')
899 return usage_data_autocorr();
900 int window
= 4000; //set default
902 bool updateGrph
= FALSE
;
903 sscanf(Cmd
, "%i %c", &window
, &grph
);
905 if (window
>= GraphTraceLen
) {
906 PrintAndLog("window must be smaller than trace (%d samples)",
910 if (grph
== 'g') updateGrph
=TRUE
;
911 return AutoCorrelate(window
, updateGrph
, TRUE
);
914 int CmdBitsamples(const char *Cmd
)
919 GetFromBigBuf(got
,sizeof(got
),0);
920 WaitForResponse(CMD_ACK
,NULL
);
922 for (int j
= 0; j
< sizeof(got
); j
++) {
923 for (int k
= 0; k
< 8; k
++) {
924 if(got
[j
] & (1 << (7 - k
))) {
925 GraphBuffer
[cnt
++] = 1;
927 GraphBuffer
[cnt
++] = 0;
932 RepaintGraphWindow();
937 * Convert to a bitstream
939 int CmdBitstream(const char *Cmd
)
947 int hithigh
, hitlow
, first
;
949 /* Detect high and lows and clock */
950 for (i
= 0; i
< GraphTraceLen
; ++i
)
952 if (GraphBuffer
[i
] > high
)
953 high
= GraphBuffer
[i
];
954 else if (GraphBuffer
[i
] < low
)
955 low
= GraphBuffer
[i
];
959 clock
= GetAskClock(Cmd
, high
, 1);
963 for (i
= 0; i
< (int)(gtl
/ clock
); ++i
)
968 /* Find out if we hit both high and low peaks */
969 for (j
= 0; j
< clock
; ++j
)
971 if (GraphBuffer
[(i
* clock
) + j
] == high
)
973 else if (GraphBuffer
[(i
* clock
) + j
] == low
)
975 /* it doesn't count if it's the first part of our read
976 because it's really just trailing from the last sequence */
977 if (first
&& (hithigh
|| hitlow
))
978 hithigh
= hitlow
= 0;
982 if (hithigh
&& hitlow
)
986 /* If we didn't hit both high and low peaks, we had a bit transition */
987 if (!hithigh
|| !hitlow
)
990 AppendGraph(0, clock
, bit
);
993 RepaintGraphWindow();
997 int CmdBuffClear(const char *Cmd
)
999 UsbCommand c
= {CMD_BUFF_CLEAR
};
1005 int CmdDec(const char *Cmd
)
1007 for (int i
= 0; i
< (GraphTraceLen
/ 2); ++i
)
1008 GraphBuffer
[i
] = GraphBuffer
[i
* 2];
1010 PrintAndLog("decimated by 2");
1011 RepaintGraphWindow();
1015 * Undecimate - I'd call it 'interpolate', but we'll save that
1016 * name until someone does an actual interpolation command, not just
1017 * blindly repeating samples
1021 int CmdUndec(const char *Cmd
)
1023 if(param_getchar(Cmd
, 0) == 'h')
1025 PrintAndLog("Usage: data undec [factor]");
1026 PrintAndLog("This function performs un-decimation, by repeating each sample N times");
1027 PrintAndLog("Options: ");
1028 PrintAndLog(" h This help");
1029 PrintAndLog(" factor The number of times to repeat each sample.[default:2]");
1030 PrintAndLog("Example: 'data undec 3'");
1034 uint8_t factor
= param_get8ex(Cmd
, 0,2, 10);
1035 //We have memory, don't we?
1036 int swap
[MAX_GRAPH_TRACE_LEN
] = { 0 };
1037 uint32_t g_index
= 0 ,s_index
= 0;
1038 while(g_index
< GraphTraceLen
&& s_index
< MAX_GRAPH_TRACE_LEN
)
1041 for(count
= 0; count
< factor
&& s_index
+count
< MAX_GRAPH_TRACE_LEN
; count
++)
1042 swap
[s_index
+count
] = GraphBuffer
[g_index
];
1046 memcpy(GraphBuffer
,swap
, s_index
* sizeof(int));
1047 GraphTraceLen
= s_index
;
1048 RepaintGraphWindow();
1053 //shift graph zero up or down based on input + or -
1054 int CmdGraphShiftZero(const char *Cmd
)
1058 //set options from parameters entered with the command
1059 sscanf(Cmd
, "%i", &shift
);
1061 for(int i
= 0; i
<GraphTraceLen
; i
++){
1062 shiftedVal
=GraphBuffer
[i
]+shift
;
1065 else if (shiftedVal
<-127)
1067 GraphBuffer
[i
]= shiftedVal
;
1074 //use large jumps in read samples to identify edges of waves and then amplify that wave to max
1075 //similar to dirtheshold, threshold, and askdemod commands
1076 //takes a threshold length which is the measured length between two samples then determines an edge
1077 int CmdAskEdgeDetect(const char *Cmd
)
1080 sscanf(Cmd
, "%i", &thresLen
);
1083 for(int i
= 1; i
<GraphTraceLen
; i
++){
1084 if (GraphBuffer
[i
]-GraphBuffer
[i
-1]>=thresLen
) //large jump up
1086 else if(GraphBuffer
[i
]-GraphBuffer
[i
-1]<=-1*thresLen
) //large jump down
1089 shiftedVal
=GraphBuffer
[i
]+shift
;
1093 else if (shiftedVal
<-127)
1095 GraphBuffer
[i
-1] = shiftedVal
;
1097 RepaintGraphWindow();
1102 /* Print our clock rate */
1103 // uses data from graphbuffer
1104 // adjusted to take char parameter for type of modulation to find the clock - by marshmellow.
1105 int CmdDetectClockRate(const char *Cmd
)
1107 char cmdp
= param_getchar(Cmd
, 0);
1108 if (strlen(Cmd
) > 3 || strlen(Cmd
) == 0 || cmdp
== 'h' || cmdp
== 'H') {
1109 PrintAndLog("Usage: data detectclock [modulation]");
1110 PrintAndLog(" [modulation as char], specify the modulation type you want to detect the clock of");
1111 PrintAndLog(" 'a' = ask, 'f' = fsk, 'n' = nrz/direct, 'p' = psk");
1113 PrintAndLog(" sample: data detectclock a = detect the clock of an ask modulated wave in the GraphBuffer");
1114 PrintAndLog(" data detectclock f = detect the clock of an fsk modulated wave in the GraphBuffer");
1115 PrintAndLog(" data detectclock p = detect the clock of an psk modulated wave in the GraphBuffer");
1116 PrintAndLog(" data detectclock n = detect the clock of an nrz/direct modulated wave in the GraphBuffer");
1120 ans
= GetAskClock("", true, false);
1121 } else if (cmdp
== 'f'){
1122 ans
= GetFskClock("", true, false);
1123 } else if (cmdp
== 'n'){
1124 ans
= GetNrzClock("", true, false);
1125 } else if (cmdp
== 'p'){
1126 ans
= GetPskClock("", true, false);
1128 PrintAndLog ("Please specify a valid modulation to detect the clock of - see option h for help");
1134 //fsk raw demod and print binary
1135 //takes 4 arguments - Clock, invert, fchigh, fclow
1136 //defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a))
1137 int FSKrawDemod(const char *Cmd
, bool verbose
)
1139 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1146 //set options from parameters entered with the command
1147 sscanf(Cmd
, "%i %i %i %i", &rfLen
, &invert
, &fchigh
, &fclow
);
1149 if (strlen(Cmd
)>0 && strlen(Cmd
)<=2) {
1151 invert
=1; //if invert option only is used
1156 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
1157 size_t BitLen
= getFromGraphBuf(BitStream
);
1158 if (BitLen
==0) return 0;
1159 //get field clock lengths
1161 if (fchigh
==0 || fclow
== 0){
1162 fcs
= countFC(BitStream
, BitLen
, 1);
1167 fchigh
= (fcs
>> 8) & 0xFF;
1171 //get bit clock length
1173 rfLen
= detectFSKClk(BitStream
, BitLen
, fchigh
, fclow
);
1174 if (rfLen
== 0) rfLen
= 50;
1176 if (verbose
) PrintAndLog("Args invert: %d - Clock:%d - fchigh:%d - fclow: %d",invert
,rfLen
,fchigh
, fclow
);
1177 int size
= fskdemod(BitStream
,BitLen
,(uint8_t)rfLen
,(uint8_t)invert
,(uint8_t)fchigh
,(uint8_t)fclow
);
1179 setDemodBuf(BitStream
,size
,0);
1181 // Now output the bitstream to the scrollback by line of 16 bits
1182 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
1184 PrintAndLog("FSK decoded bitstream:");
1185 printBitStream(BitStream
,size
);
1190 if (verbose
) PrintAndLog("no FSK data found");
1196 //fsk raw demod and print binary
1197 //takes 4 arguments - Clock, invert, fchigh, fclow
1198 //defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a))
1199 int CmdFSKrawdemod(const char *Cmd
)
1201 char cmdp
= param_getchar(Cmd
, 0);
1202 if (strlen(Cmd
) > 10 || cmdp
== 'h' || cmdp
== 'H') {
1203 PrintAndLog("Usage: data rawdemod fs [clock] <invert> [fchigh] [fclow]");
1204 PrintAndLog(" [set clock as integer] optional, omit for autodetect.");
1205 PrintAndLog(" <invert>, 1 for invert output, can be used even if the clock is omitted");
1206 PrintAndLog(" [fchigh], larger field clock length, omit for autodetect");
1207 PrintAndLog(" [fclow], small field clock length, omit for autodetect");
1209 PrintAndLog(" sample: data rawdemod fs = demod an fsk tag from GraphBuffer using autodetect");
1210 PrintAndLog(" : data rawdemod fs 32 = demod an fsk tag from GraphBuffer using a clock of RF/32, autodetect fc");
1211 PrintAndLog(" : data rawdemod fs 1 = demod an fsk tag from GraphBuffer using autodetect, invert output");
1212 PrintAndLog(" : data rawdemod fs 32 1 = demod an fsk tag from GraphBuffer using a clock of RF/32, invert output, autodetect fc");
1213 PrintAndLog(" : data rawdemod fs 64 0 8 5 = demod an fsk1 RF/64 tag from GraphBuffer");
1214 PrintAndLog(" : data rawdemod fs 50 0 10 8 = demod an fsk2 RF/50 tag from GraphBuffer");
1215 PrintAndLog(" : data rawdemod fs 50 1 10 8 = demod an fsk2a RF/50 tag from GraphBuffer");
1218 return FSKrawDemod(Cmd
, TRUE
);
1221 //by marshmellow (based on existing demod + holiman's refactor)
1222 //HID Prox demod - FSK RF/50 with preamble of 00011101 (then manchester encoded)
1223 //print full HID Prox ID and some bit format details if found
1224 int CmdFSKdemodHID(const char *Cmd
)
1226 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1227 uint32_t hi2
=0, hi
=0, lo
=0;
1229 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
1230 size_t BitLen
= getFromGraphBuf(BitStream
);
1231 if (BitLen
==0) return 0;
1232 //get binary from fsk wave
1233 int idx
= HIDdemodFSK(BitStream
,&BitLen
,&hi2
,&hi
,&lo
);
1237 PrintAndLog("DEBUG: Just Noise Detected");
1238 } else if (idx
== -2) {
1239 PrintAndLog("DEBUG: Error demoding fsk");
1240 } else if (idx
== -3) {
1241 PrintAndLog("DEBUG: Preamble not found");
1242 } else if (idx
== -4) {
1243 PrintAndLog("DEBUG: Error in Manchester data, SIZE: %d", BitLen
);
1245 PrintAndLog("DEBUG: Error demoding fsk %d", idx
);
1250 if (hi2
==0 && hi
==0 && lo
==0) {
1251 if (g_debugMode
) PrintAndLog("DEBUG: Error - no values found");
1254 if (hi2
!= 0){ //extra large HID tags
1255 PrintAndLog("HID Prox TAG ID: %x%08x%08x (%d)",
1256 (unsigned int) hi2
, (unsigned int) hi
, (unsigned int) lo
, (unsigned int) (lo
>>1) & 0xFFFF);
1258 else { //standard HID tags <38 bits
1261 uint32_t cardnum
= 0;
1262 if (((hi
>>5)&1)==1){//if bit 38 is set then < 37 bit format is used
1264 lo2
=(((hi
& 31) << 12) | (lo
>>20)); //get bits 21-37 to check for format len bit
1266 while(lo2
>1){ //find last bit set to 1 (format len bit)
1274 cardnum
= (lo
>>1)&0xFFFF;
1278 cardnum
= (lo
>>1)&0xFFFF;
1279 fc
= ((hi
&1)<<15)|(lo
>>17);
1282 cardnum
= (lo
>>1)&0xFFFFF;
1283 fc
= ((hi
&1)<<11)|(lo
>>21);
1286 else { //if bit 38 is not set then 37 bit format is used
1291 cardnum
= (lo
>>1)&0x7FFFF;
1292 fc
= ((hi
&0xF)<<12)|(lo
>>20);
1295 PrintAndLog("HID Prox TAG ID: %x%08x (%d) - Format Len: %dbit - FC: %d - Card: %d",
1296 (unsigned int) hi
, (unsigned int) lo
, (unsigned int) (lo
>>1) & 0xFFFF,
1297 (unsigned int) fmtLen
, (unsigned int) fc
, (unsigned int) cardnum
);
1299 setDemodBuf(BitStream
,BitLen
,idx
);
1301 PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx
, BitLen
);
1308 //Paradox Prox demod - FSK RF/50 with preamble of 00001111 (then manchester encoded)
1309 //print full Paradox Prox ID and some bit format details if found
1310 int CmdFSKdemodParadox(const char *Cmd
)
1312 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1313 uint32_t hi2
=0, hi
=0, lo
=0;
1315 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
1316 size_t BitLen
= getFromGraphBuf(BitStream
);
1317 if (BitLen
==0) return 0;
1318 //get binary from fsk wave
1319 int idx
= ParadoxdemodFSK(BitStream
,&BitLen
,&hi2
,&hi
,&lo
);
1323 PrintAndLog("DEBUG: Just Noise Detected");
1324 } else if (idx
== -2) {
1325 PrintAndLog("DEBUG: Error demoding fsk");
1326 } else if (idx
== -3) {
1327 PrintAndLog("DEBUG: Preamble not found");
1328 } else if (idx
== -4) {
1329 PrintAndLog("DEBUG: Error in Manchester data");
1331 PrintAndLog("DEBUG: Error demoding fsk %d", idx
);
1336 if (hi2
==0 && hi
==0 && lo
==0){
1337 if (g_debugMode
) PrintAndLog("DEBUG: Error - no value found");
1340 uint32_t fc
= ((hi
& 0x3)<<6) | (lo
>>26);
1341 uint32_t cardnum
= (lo
>>10)&0xFFFF;
1342 uint32_t rawLo
= bytebits_to_byte(BitStream
+idx
+64,32);
1343 uint32_t rawHi
= bytebits_to_byte(BitStream
+idx
+32,32);
1344 uint32_t rawHi2
= bytebits_to_byte(BitStream
+idx
,32);
1346 PrintAndLog("Paradox TAG ID: %x%08x - FC: %d - Card: %d - Checksum: %02x - RAW: %08x%08x%08x",
1347 hi
>>10, (hi
& 0x3)<<26 | (lo
>>10), fc
, cardnum
, (lo
>>2) & 0xFF, rawHi2
, rawHi
, rawLo
);
1348 setDemodBuf(BitStream
,BitLen
,idx
);
1350 PrintAndLog("DEBUG: idx: %d, len: %d, Printing Demod Buffer:", idx
, BitLen
);
1357 //IO-Prox demod - FSK RF/64 with preamble of 000000001
1358 //print ioprox ID and some format details
1359 int CmdFSKdemodIO(const char *Cmd
)
1361 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1364 //something in graphbuffer?
1365 if (GraphTraceLen
< 65) {
1366 if (g_debugMode
)PrintAndLog("DEBUG: not enough samples in GraphBuffer");
1369 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
1370 size_t BitLen
= getFromGraphBuf(BitStream
);
1371 if (BitLen
==0) return 0;
1373 //get binary from fsk wave
1374 idx
= IOdemodFSK(BitStream
,BitLen
);
1378 PrintAndLog("DEBUG: Just Noise Detected");
1379 } else if (idx
== -2) {
1380 PrintAndLog("DEBUG: not enough samples");
1381 } else if (idx
== -3) {
1382 PrintAndLog("DEBUG: error during fskdemod");
1383 } else if (idx
== -4) {
1384 PrintAndLog("DEBUG: Preamble not found");
1385 } else if (idx
== -5) {
1386 PrintAndLog("DEBUG: Separator bits not found");
1388 PrintAndLog("DEBUG: Error demoding fsk %d", idx
);
1394 if (g_debugMode
==1){
1395 PrintAndLog("DEBUG: IO Prox Data not found - FSK Bits: %d",BitLen
);
1396 if (BitLen
> 92) printBitStream(BitStream
,92);
1401 //0 10 20 30 40 50 60
1403 //01234567 8 90123456 7 89012345 6 78901234 5 67890123 4 56789012 3 45678901 23
1404 //-----------------------------------------------------------------------------
1405 //00000000 0 11110000 1 facility 1 version* 1 code*one 1 code*two 1 ???????? 11
1407 //XSF(version)facility:codeone+codetwo (raw)
1409 if (idx
+64>BitLen
) {
1410 if (g_debugMode
==1) PrintAndLog("not enough bits found - bitlen: %d",BitLen
);
1413 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]);
1414 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]);
1415 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]);
1416 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]);
1417 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]);
1418 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]);
1419 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]);
1421 uint32_t code
= bytebits_to_byte(BitStream
+idx
,32);
1422 uint32_t code2
= bytebits_to_byte(BitStream
+idx
+32,32);
1423 uint8_t version
= bytebits_to_byte(BitStream
+idx
+27,8); //14,4
1424 uint8_t facilitycode
= bytebits_to_byte(BitStream
+idx
+18,8) ;
1425 uint16_t number
= (bytebits_to_byte(BitStream
+idx
+36,8)<<8)|(bytebits_to_byte(BitStream
+idx
+45,8)); //36,9
1426 uint8_t crc
= bytebits_to_byte(BitStream
+idx
+54,8);
1427 uint16_t calccrc
= 0;
1429 for (uint8_t i
=1; i
<6; ++i
){
1430 calccrc
+= bytebits_to_byte(BitStream
+idx
+9*i
,8);
1431 //PrintAndLog("%d", calccrc);
1434 calccrc
= 0xff - calccrc
;
1436 char *crcStr
= (crc
== calccrc
) ? "crc ok": "!crc";
1438 PrintAndLog("IO Prox XSF(%02d)%02x:%05d (%08x%08x) [%02x %s]",version
,facilitycode
,number
,code
,code2
, crc
, crcStr
);
1439 setDemodBuf(BitStream
,64,idx
);
1441 PrintAndLog("DEBUG: idx: %d, Len: %d, Printing demod buffer:",idx
,64);
1448 //AWID Prox demod - FSK RF/50 with preamble of 00000001 (always a 96 bit data stream)
1449 //print full AWID Prox ID and some bit format details if found
1450 int CmdFSKdemodAWID(const char *Cmd
)
1454 //sscanf(Cmd, "%i", &verbose);
1456 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1457 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
1458 size_t size
= getFromGraphBuf(BitStream
);
1459 if (size
==0) return 0;
1461 //get binary from fsk wave
1462 int idx
= AWIDdemodFSK(BitStream
, &size
);
1464 if (g_debugMode
==1){
1466 PrintAndLog("DEBUG: Error - not enough samples");
1468 PrintAndLog("DEBUG: Error - only noise found");
1470 PrintAndLog("DEBUG: Error - problem during FSK demod");
1472 PrintAndLog("DEBUG: Error - AWID preamble not found");
1474 PrintAndLog("DEBUG: Error - Size not correct: %d", size
);
1476 PrintAndLog("DEBUG: Error %d",idx
);
1482 // 0 10 20 30 40 50 60
1484 // 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
1485 // -----------------------------------------------------------------------------
1486 // 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
1487 // 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
1488 // |---26 bit---| |-----117----||-------------142-------------|
1489 // b = format bit len, o = odd parity of last 3 bits
1490 // f = facility code, c = card number
1491 // w = wiegand parity
1492 // (26 bit format shown)
1494 //get raw ID before removing parities
1495 uint32_t rawLo
= bytebits_to_byte(BitStream
+idx
+64,32);
1496 uint32_t rawHi
= bytebits_to_byte(BitStream
+idx
+32,32);
1497 uint32_t rawHi2
= bytebits_to_byte(BitStream
+idx
,32);
1498 setDemodBuf(BitStream
,96,idx
);
1500 size
= removeParity(BitStream
, idx
+8, 4, 1, 88);
1502 if (g_debugMode
==1) PrintAndLog("DEBUG: Error - at parity check-tag size does not match AWID format");
1505 // ok valid card found!
1508 // 0 10 20 30 40 50 60
1510 // 01234567 8 90123456 7890123456789012 3 456789012345678901234567890123456
1511 // -----------------------------------------------------------------------------
1512 // 00011010 1 01110101 0000000010001110 1 000000000000000000000000000000000
1513 // bbbbbbbb w ffffffff cccccccccccccccc w xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
1514 // |26 bit| |-117--| |-----142------|
1515 // b = format bit len, o = odd parity of last 3 bits
1516 // f = facility code, c = card number
1517 // w = wiegand parity
1518 // (26 bit format shown)
1521 uint32_t cardnum
= 0;
1524 uint8_t fmtLen
= bytebits_to_byte(BitStream
,8);
1526 fc
= bytebits_to_byte(BitStream
+9, 8);
1527 cardnum
= bytebits_to_byte(BitStream
+17, 16);
1528 code1
= bytebits_to_byte(BitStream
+8,fmtLen
);
1529 PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %08x%08x%08x", fmtLen
, fc
, cardnum
, code1
, rawHi2
, rawHi
, rawLo
);
1531 cardnum
= bytebits_to_byte(BitStream
+8+(fmtLen
-17), 16);
1533 code1
= bytebits_to_byte(BitStream
+8,fmtLen
-32);
1534 code2
= bytebits_to_byte(BitStream
+8+(fmtLen
-32),32);
1535 PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen
, cardnum
, code1
, code2
, rawHi2
, rawHi
, rawLo
);
1537 code1
= bytebits_to_byte(BitStream
+8,fmtLen
);
1538 PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x, Raw: %08x%08x%08x", fmtLen
, cardnum
, code1
, rawHi2
, rawHi
, rawLo
);
1542 PrintAndLog("DEBUG: idx: %d, Len: %d Printing Demod Buffer:", idx
, 96);
1545 //todo - convert hi2, hi, lo to demodbuffer for future sim/clone commands
1550 //Pyramid Prox demod - FSK RF/50 with preamble of 0000000000000001 (always a 128 bit data stream)
1551 //print full Farpointe Data/Pyramid Prox ID and some bit format details if found
1552 int CmdFSKdemodPyramid(const char *Cmd
)
1554 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1555 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
1556 size_t size
= getFromGraphBuf(BitStream
);
1557 if (size
==0) return 0;
1559 //get binary from fsk wave
1560 int idx
= PyramiddemodFSK(BitStream
, &size
);
1562 if (g_debugMode
==1){
1564 PrintAndLog("DEBUG: Error - not enough samples");
1566 PrintAndLog("DEBUG: Error - only noise found");
1568 PrintAndLog("DEBUG: Error - problem during FSK demod");
1570 PrintAndLog("DEBUG: Error - Size not correct: %d", size
);
1572 PrintAndLog("DEBUG: Error - Pyramid preamble not found");
1574 PrintAndLog("DEBUG: Error - idx: %d",idx
);
1579 // 0 10 20 30 40 50 60
1581 // 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3
1582 // -----------------------------------------------------------------------------
1583 // 0000000 0 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1
1584 // premable xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o
1586 // 64 70 80 90 100 110 120
1588 // 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7
1589 // -----------------------------------------------------------------------------
1590 // 0000000 1 0000000 1 0000000 1 0110111 0 0011000 1 0000001 0 0001100 1 1001010 0
1591 // xxxxxxx o xxxxxxx o xxxxxxx o xswffff o ffffccc o ccccccc o ccccccw o ppppppp o
1592 // |---115---||---------71---------|
1593 // s = format start bit, o = odd parity of last 7 bits
1594 // f = facility code, c = card number
1595 // w = wiegand parity, x = extra space for other formats
1596 // p = unknown checksum
1597 // (26 bit format shown)
1599 //get bytes for checksum calc
1600 uint8_t checksum
= bytebits_to_byte(BitStream
+ idx
+ 120, 8);
1601 uint8_t csBuff
[14] = {0x00};
1602 for (uint8_t i
= 0; i
< 13; i
++){
1603 csBuff
[i
] = bytebits_to_byte(BitStream
+ idx
+ 16 + (i
*8), 8);
1605 //check checksum calc
1606 //checksum calc thanks to ICEMAN!!
1607 uint32_t checkCS
= CRC8Maxim(csBuff
,13);
1609 //get raw ID before removing parities
1610 uint32_t rawLo
= bytebits_to_byte(BitStream
+idx
+96,32);
1611 uint32_t rawHi
= bytebits_to_byte(BitStream
+idx
+64,32);
1612 uint32_t rawHi2
= bytebits_to_byte(BitStream
+idx
+32,32);
1613 uint32_t rawHi3
= bytebits_to_byte(BitStream
+idx
,32);
1614 setDemodBuf(BitStream
,128,idx
);
1616 size
= removeParity(BitStream
, idx
+8, 8, 1, 120);
1619 PrintAndLog("DEBUG: Error at parity check - tag size does not match Pyramid format, SIZE: %d, IDX: %d, hi3: %x",size
, idx
, rawHi3
);
1623 // ok valid card found!
1626 // 0 10 20 30 40 50 60 70
1628 // 01234567890123456789012345678901234567890123456789012345678901234567890
1629 // -----------------------------------------------------------------------
1630 // 00000000000000000000000000000000000000000000000000000000000000000000000
1631 // xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
1635 // 1 2 34567890 1234567890123456 7 8901234
1636 // ---------------------------------------
1637 // 1 1 01110011 0000000001000110 0 1001010
1638 // s w ffffffff cccccccccccccccc w ppppppp
1639 // |--115-| |------71------|
1640 // s = format start bit, o = odd parity of last 7 bits
1641 // f = facility code, c = card number
1642 // w = wiegand parity, x = extra space for other formats
1643 // p = unknown checksum
1644 // (26 bit format shown)
1646 //find start bit to get fmtLen
1648 for (j
=0; j
<size
; j
++){
1649 if(BitStream
[j
]) break;
1651 uint8_t fmtLen
= size
-j
-8;
1653 uint32_t cardnum
= 0;
1655 //uint32_t code2 = 0;
1657 fc
= bytebits_to_byte(BitStream
+73, 8);
1658 cardnum
= bytebits_to_byte(BitStream
+81, 16);
1659 code1
= bytebits_to_byte(BitStream
+72,fmtLen
);
1660 PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %08x%08x%08x%08x", fmtLen
, fc
, cardnum
, code1
, rawHi3
, rawHi2
, rawHi
, rawLo
);
1661 } else if (fmtLen
==45){
1662 fmtLen
=42; //end = 10 bits not 7 like 26 bit fmt
1663 fc
= bytebits_to_byte(BitStream
+53, 10);
1664 cardnum
= bytebits_to_byte(BitStream
+63, 32);
1665 PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Raw: %08x%08x%08x%08x", fmtLen
, fc
, cardnum
, rawHi3
, rawHi2
, rawHi
, rawLo
);
1667 cardnum
= bytebits_to_byte(BitStream
+81, 16);
1669 //code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen-32);
1670 //code2 = bytebits_to_byte(BitStream+(size-32),32);
1671 PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %08x%08x%08x%08x", fmtLen
, cardnum
, rawHi3
, rawHi2
, rawHi
, rawLo
);
1673 //code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen);
1674 PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %08x%08x%08x%08x", fmtLen
, cardnum
, rawHi3
, rawHi2
, rawHi
, rawLo
);
1677 if (checksum
== checkCS
)
1678 PrintAndLog("Checksum %02x passed", checksum
);
1680 PrintAndLog("Checksum %02x failed - should have been %02x", checksum
, checkCS
);
1683 PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx
, 128);
1689 int CmdFSKdemod(const char *Cmd
) //old CmdFSKdemod needs updating
1691 static const int LowTone
[] = {
1692 1, 1, 1, 1, 1, -1, -1, -1, -1, -1,
1693 1, 1, 1, 1, 1, -1, -1, -1, -1, -1,
1694 1, 1, 1, 1, 1, -1, -1, -1, -1, -1,
1695 1, 1, 1, 1, 1, -1, -1, -1, -1, -1,
1696 1, 1, 1, 1, 1, -1, -1, -1, -1, -1
1698 static const int HighTone
[] = {
1699 1, 1, 1, 1, 1, -1, -1, -1, -1,
1700 1, 1, 1, 1, -1, -1, -1, -1,
1701 1, 1, 1, 1, -1, -1, -1, -1,
1702 1, 1, 1, 1, -1, -1, -1, -1,
1703 1, 1, 1, 1, -1, -1, -1, -1,
1704 1, 1, 1, 1, -1, -1, -1, -1, -1,
1707 int lowLen
= sizeof (LowTone
) / sizeof (int);
1708 int highLen
= sizeof (HighTone
) / sizeof (int);
1709 int convLen
= (highLen
> lowLen
) ? highLen
: lowLen
;
1710 uint32_t hi
= 0, lo
= 0;
1713 int minMark
= 0, maxMark
= 0;
1715 for (i
= 0; i
< GraphTraceLen
- convLen
; ++i
) {
1716 int lowSum
= 0, highSum
= 0;
1718 for (j
= 0; j
< lowLen
; ++j
) {
1719 lowSum
+= LowTone
[j
]*GraphBuffer
[i
+j
];
1721 for (j
= 0; j
< highLen
; ++j
) {
1722 highSum
+= HighTone
[j
] * GraphBuffer
[i
+ j
];
1724 lowSum
= abs(100 * lowSum
/ lowLen
);
1725 highSum
= abs(100 * highSum
/ highLen
);
1726 GraphBuffer
[i
] = (highSum
<< 16) | lowSum
;
1729 for(i
= 0; i
< GraphTraceLen
- convLen
- 16; ++i
) {
1730 int lowTot
= 0, highTot
= 0;
1731 // 10 and 8 are f_s divided by f_l and f_h, rounded
1732 for (j
= 0; j
< 10; ++j
) {
1733 lowTot
+= (GraphBuffer
[i
+j
] & 0xffff);
1735 for (j
= 0; j
< 8; j
++) {
1736 highTot
+= (GraphBuffer
[i
+ j
] >> 16);
1738 GraphBuffer
[i
] = lowTot
- highTot
;
1739 if (GraphBuffer
[i
] > maxMark
) maxMark
= GraphBuffer
[i
];
1740 if (GraphBuffer
[i
] < minMark
) minMark
= GraphBuffer
[i
];
1743 GraphTraceLen
-= (convLen
+ 16);
1744 RepaintGraphWindow();
1746 // Find bit-sync (3 lo followed by 3 high) (HID ONLY)
1747 int max
= 0, maxPos
= 0;
1748 for (i
= 0; i
< 6000; ++i
) {
1750 for (j
= 0; j
< 3 * lowLen
; ++j
) {
1751 dec
-= GraphBuffer
[i
+ j
];
1753 for (; j
< 3 * (lowLen
+ highLen
); ++j
) {
1754 dec
+= GraphBuffer
[i
+ j
];
1762 // place start of bit sync marker in graph
1763 GraphBuffer
[maxPos
] = maxMark
;
1764 GraphBuffer
[maxPos
+ 1] = minMark
;
1768 // place end of bit sync marker in graph
1769 GraphBuffer
[maxPos
] = maxMark
;
1770 GraphBuffer
[maxPos
+1] = minMark
;
1772 PrintAndLog("actual data bits start at sample %d", maxPos
);
1773 PrintAndLog("length %d/%d", highLen
, lowLen
);
1775 uint8_t bits
[46] = {0x00};
1777 // find bit pairs and manchester decode them
1778 for (i
= 0; i
< arraylen(bits
) - 1; ++i
) {
1780 for (j
= 0; j
< lowLen
; ++j
) {
1781 dec
-= GraphBuffer
[maxPos
+ j
];
1783 for (; j
< lowLen
+ highLen
; ++j
) {
1784 dec
+= GraphBuffer
[maxPos
+ j
];
1787 // place inter bit marker in graph
1788 GraphBuffer
[maxPos
] = maxMark
;
1789 GraphBuffer
[maxPos
+ 1] = minMark
;
1791 // hi and lo form a 64 bit pair
1792 hi
= (hi
<< 1) | (lo
>> 31);
1794 // store decoded bit as binary (in hi/lo) and text (in bits[])
1802 PrintAndLog("bits: '%s'", bits
);
1803 PrintAndLog("hex: %08x %08x", hi
, lo
);
1808 //attempt to psk1 demod graph buffer
1809 int PSKDemod(const char *Cmd
, bool verbose
)
1814 sscanf(Cmd
, "%i %i %i", &clk
, &invert
, &maxErr
);
1819 if (invert
!= 0 && invert
!= 1) {
1820 if (verbose
) PrintAndLog("Invalid argument: %s", Cmd
);
1823 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
1824 size_t BitLen
= getFromGraphBuf(BitStream
);
1825 if (BitLen
==0) return -1;
1826 uint8_t carrier
=countFC(BitStream
, BitLen
, 0);
1827 if (carrier
!=2 && carrier
!=4 && carrier
!=8){
1832 errCnt
= pskRawDemod(BitStream
, &BitLen
, &clk
, &invert
);
1833 if (errCnt
> maxErr
){
1834 if (g_debugMode
==1 && verbose
) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk
,invert
,BitLen
,errCnt
);
1837 if (errCnt
<0|| BitLen
<16){ //throw away static - allow 1 and -1 (in case of threshold command first)
1838 if (g_debugMode
==1 && verbose
) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk
,invert
,BitLen
,errCnt
);
1842 PrintAndLog("Tried PSK Demod using Clock: %d - invert: %d - Bits Found: %d",clk
,invert
,BitLen
);
1844 PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt
);
1847 //prime demod buffer for output
1848 setDemodBuf(BitStream
,BitLen
,0);
1852 // Indala 26 bit decode
1854 // optional arguments - same as CmdpskNRZrawDemod (clock & invert)
1855 int CmdIndalaDecode(const char *Cmd
)
1859 ans
= PSKDemod(Cmd
, 0);
1860 } else{ //default to RF/32
1861 ans
= PSKDemod("32", 0);
1866 PrintAndLog("Error1: %d",ans
);
1870 ans
= indala26decode(DemodBuffer
,(size_t *) &DemodBufferLen
, &invert
);
1873 PrintAndLog("Error2: %d",ans
);
1876 char showbits
[251]={0x00};
1879 PrintAndLog("Had to invert bits");
1881 //convert UID to HEX
1882 uint32_t uid1
, uid2
, uid3
, uid4
, uid5
, uid6
, uid7
;
1886 PrintAndLog("BitLen: %d",DemodBufferLen
);
1887 if (DemodBufferLen
==64){
1888 for( idx
=0; idx
<64; idx
++) {
1889 uid1
=(uid1
<<1)|(uid2
>>31);
1890 if (DemodBuffer
[idx
] == 0) {
1899 PrintAndLog("Indala UID=%s (%x%08x)", showbits
, uid1
, uid2
);
1907 for( idx
=0; idx
<DemodBufferLen
; idx
++) {
1908 uid1
=(uid1
<<1)|(uid2
>>31);
1909 uid2
=(uid2
<<1)|(uid3
>>31);
1910 uid3
=(uid3
<<1)|(uid4
>>31);
1911 uid4
=(uid4
<<1)|(uid5
>>31);
1912 uid5
=(uid5
<<1)|(uid6
>>31);
1913 uid6
=(uid6
<<1)|(uid7
>>31);
1914 if (DemodBuffer
[idx
] == 0) {
1924 PrintAndLog("Indala UID=%s (%x%08x%08x%08x%08x%08x%08x)", showbits
, uid1
, uid2
, uid3
, uid4
, uid5
, uid6
, uid7
);
1927 PrintAndLog("DEBUG: printing demodbuffer:");
1934 // takes 3 arguments - clock, invert, maxErr as integers
1935 // attempts to demodulate nrz only
1936 // prints binary found and saves in demodbuffer for further commands
1938 int NRZrawDemod(const char *Cmd
, bool verbose
)
1943 sscanf(Cmd
, "%i %i %i", &clk
, &invert
, &maxErr
);
1948 if (invert
!= 0 && invert
!= 1) {
1949 PrintAndLog("Invalid argument: %s", Cmd
);
1952 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
1953 size_t BitLen
= getFromGraphBuf(BitStream
);
1954 if (BitLen
==0) return 0;
1956 errCnt
= nrzRawDemod(BitStream
, &BitLen
, &clk
, &invert
, maxErr
);
1957 if (errCnt
> maxErr
){
1958 if (g_debugMode
) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk
,invert
,BitLen
,errCnt
);
1961 if (errCnt
<0|| BitLen
<16){ //throw away static - allow 1 and -1 (in case of threshold command first)
1962 if (g_debugMode
) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk
,invert
,BitLen
,errCnt
);
1965 if (verbose
|| g_debugMode
) PrintAndLog("Tried NRZ Demod using Clock: %d - invert: %d - Bits Found: %d",clk
,invert
,BitLen
);
1966 //prime demod buffer for output
1967 setDemodBuf(BitStream
,BitLen
,0);
1969 if (errCnt
>0 && (verbose
|| g_debugMode
)) PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt
);
1970 if (verbose
|| g_debugMode
) {
1971 PrintAndLog("NRZ demoded bitstream:");
1972 // Now output the bitstream to the scrollback by line of 16 bits
1978 int CmdNRZrawDemod(const char *Cmd
)
1980 char cmdp
= param_getchar(Cmd
, 0);
1981 if (strlen(Cmd
) > 10 || cmdp
== 'h' || cmdp
== 'H') {
1982 PrintAndLog("Usage: data rawdemod nr [clock] <0|1> [maxError]");
1983 PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
1984 PrintAndLog(" <invert>, 1 for invert output");
1985 PrintAndLog(" [set maximum allowed errors], default = 100.");
1987 PrintAndLog(" sample: data rawdemod nr = demod a nrz/direct tag from GraphBuffer");
1988 PrintAndLog(" : data rawdemod nr 32 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32");
1989 PrintAndLog(" : data rawdemod nr 32 1 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32 and inverting data");
1990 PrintAndLog(" : data rawdemod nr 1 = demod a nrz/direct tag from GraphBuffer while inverting data");
1991 PrintAndLog(" : data rawdemod nr 64 1 0 = demod a nrz/direct tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
1994 return NRZrawDemod(Cmd
, TRUE
);
1998 // takes 3 arguments - clock, invert, maxErr as integers
1999 // attempts to demodulate psk only
2000 // prints binary found and saves in demodbuffer for further commands
2001 int CmdPSK1rawDemod(const char *Cmd
)
2004 char cmdp
= param_getchar(Cmd
, 0);
2005 if (strlen(Cmd
) > 10 || cmdp
== 'h' || cmdp
== 'H') {
2006 PrintAndLog("Usage: data rawdemod p1 [clock] <0|1> [maxError]");
2007 PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
2008 PrintAndLog(" <invert>, 1 for invert output");
2009 PrintAndLog(" [set maximum allowed errors], default = 100.");
2011 PrintAndLog(" sample: data rawdemod p1 = demod a psk1 tag from GraphBuffer");
2012 PrintAndLog(" : data rawdemod p1 32 = demod a psk1 tag from GraphBuffer using a clock of RF/32");
2013 PrintAndLog(" : data rawdemod p1 32 1 = demod a psk1 tag from GraphBuffer using a clock of RF/32 and inverting data");
2014 PrintAndLog(" : data rawdemod p1 1 = demod a psk1 tag from GraphBuffer while inverting data");
2015 PrintAndLog(" : data rawdemod p1 64 1 0 = demod a psk1 tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
2018 ans
= PSKDemod(Cmd
, TRUE
);
2021 if (g_debugMode
) PrintAndLog("Error demoding: %d",ans
);
2025 PrintAndLog("PSK demoded bitstream:");
2026 // Now output the bitstream to the scrollback by line of 16 bits
2032 // takes same args as cmdpsk1rawdemod
2033 int CmdPSK2rawDemod(const char *Cmd
)
2036 char cmdp
= param_getchar(Cmd
, 0);
2037 if (strlen(Cmd
) > 10 || cmdp
== 'h' || cmdp
== 'H') {
2038 PrintAndLog("Usage: data rawdemod p2 [clock] <0|1> [maxError]");
2039 PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
2040 PrintAndLog(" <invert>, 1 for invert output");
2041 PrintAndLog(" [set maximum allowed errors], default = 100.");
2043 PrintAndLog(" sample: data rawdemod p2 = demod a psk2 tag from GraphBuffer, autodetect clock");
2044 PrintAndLog(" : data rawdemod p2 32 = demod a psk2 tag from GraphBuffer using a clock of RF/32");
2045 PrintAndLog(" : data rawdemod p2 32 1 = demod a psk2 tag from GraphBuffer using a clock of RF/32 and inverting output");
2046 PrintAndLog(" : data rawdemod p2 1 = demod a psk2 tag from GraphBuffer, autodetect clock and invert output");
2047 PrintAndLog(" : data rawdemod p2 64 1 0 = demod a psk2 tag from GraphBuffer using a clock of RF/64, inverting output and allowing 0 demod errors");
2050 ans
=PSKDemod(Cmd
, TRUE
);
2052 if (g_debugMode
) PrintAndLog("Error demoding: %d",ans
);
2055 psk1TOpsk2(DemodBuffer
, DemodBufferLen
);
2056 PrintAndLog("PSK2 demoded bitstream:");
2057 // Now output the bitstream to the scrollback by line of 16 bits
2062 // by marshmellow - combines all raw demod functions into one menu command
2063 int CmdRawDemod(const char *Cmd
)
2065 char cmdp
= Cmd
[0]; //param_getchar(Cmd, 0);
2067 if (strlen(Cmd
) > 14 || cmdp
== 'h' || cmdp
== 'H' || strlen(Cmd
)<2) {
2068 PrintAndLog("Usage: data rawdemod [modulation] <help>|<options>");
2069 PrintAndLog(" [modulation] as 2 char, 'ab' for ask/biphase, 'am' for ask/manchester, 'ar' for ask/raw, 'fs' for fsk, ...");
2070 PrintAndLog(" 'nr' for nrz/direct, 'p1' for psk1, 'p2' for psk2");
2071 PrintAndLog(" <help> as 'h', prints the help for the specific modulation");
2072 PrintAndLog(" <options> see specific modulation help for optional parameters");
2074 PrintAndLog(" sample: data rawdemod fs h = print help specific to fsk demod");
2075 PrintAndLog(" : data rawdemod fs = demod GraphBuffer using: fsk - autodetect");
2076 PrintAndLog(" : data rawdemod ab = demod GraphBuffer using: ask/biphase - autodetect");
2077 PrintAndLog(" : data rawdemod am = demod GraphBuffer using: ask/manchester - autodetect");
2078 PrintAndLog(" : data rawdemod ar = demod GraphBuffer using: ask/raw - autodetect");
2079 PrintAndLog(" : data rawdemod nr = demod GraphBuffer using: nrz/direct - autodetect");
2080 PrintAndLog(" : data rawdemod p1 = demod GraphBuffer using: psk1 - autodetect");
2081 PrintAndLog(" : data rawdemod p2 = demod GraphBuffer using: psk2 - autodetect");
2084 char cmdp2
= Cmd
[1];
2086 if (cmdp
== 'f' && cmdp2
== 's'){
2087 ans
= CmdFSKrawdemod(Cmd
+2);
2088 } else if(cmdp
== 'a' && cmdp2
== 'b'){
2089 ans
= Cmdaskbiphdemod(Cmd
+2);
2090 } else if(cmdp
== 'a' && cmdp2
== 'm'){
2091 ans
= Cmdaskmandemod(Cmd
+2);
2092 } else if(cmdp
== 'a' && cmdp2
== 'r'){
2093 ans
= Cmdaskrawdemod(Cmd
+2);
2094 } else if(cmdp
== 'n' && cmdp2
== 'r'){
2095 ans
= CmdNRZrawDemod(Cmd
+2);
2096 } else if(cmdp
== 'p' && cmdp2
== '1'){
2097 ans
= CmdPSK1rawDemod(Cmd
+2);
2098 } else if(cmdp
== 'p' && cmdp2
== '2'){
2099 ans
= CmdPSK2rawDemod(Cmd
+2);
2101 PrintAndLog("unknown modulation entered - see help ('h') for parameter structure");
2106 int CmdGrid(const char *Cmd
)
2108 sscanf(Cmd
, "%i %i", &PlotGridX
, &PlotGridY
);
2109 PlotGridXdefault
= PlotGridX
;
2110 PlotGridYdefault
= PlotGridY
;
2111 RepaintGraphWindow();
2115 int CmdHexsamples(const char *Cmd
)
2120 char string_buf
[25];
2121 char* string_ptr
= string_buf
;
2122 uint8_t got
[BIGBUF_SIZE
];
2124 sscanf(Cmd
, "%i %i", &requested
, &offset
);
2126 /* if no args send something */
2127 if (requested
== 0) {
2130 if (offset
+ requested
> sizeof(got
)) {
2131 PrintAndLog("Tried to read past end of buffer, <bytes> + <offset> > %d", BIGBUF_SIZE
);
2135 GetFromBigBuf(got
,requested
,offset
);
2136 WaitForResponse(CMD_ACK
,NULL
);
2139 for (j
= 0; j
< requested
; j
++) {
2141 string_ptr
+= sprintf(string_ptr
, "%02x ", got
[j
]);
2143 *(string_ptr
- 1) = '\0'; // remove the trailing space
2144 PrintAndLog("%s", string_buf
);
2145 string_buf
[0] = '\0';
2146 string_ptr
= string_buf
;
2149 if (j
== requested
- 1 && string_buf
[0] != '\0') { // print any remaining bytes
2150 *(string_ptr
- 1) = '\0';
2151 PrintAndLog("%s", string_buf
);
2152 string_buf
[0] = '\0';
2158 int CmdHide(const char *Cmd
)
2164 //zero mean GraphBuffer
2165 int CmdHpf(const char *Cmd
)
2170 for (i
= 10; i
< GraphTraceLen
; ++i
)
2171 accum
+= GraphBuffer
[i
];
2172 accum
/= (GraphTraceLen
- 10);
2173 for (i
= 0; i
< GraphTraceLen
; ++i
)
2174 GraphBuffer
[i
] -= accum
;
2176 RepaintGraphWindow();
2185 bool _headBit( BitstreamOut
*stream
)
2187 int bytepos
= stream
->position
>> 3; // divide by 8
2188 int bitpos
= (stream
->position
++) & 7; // mask out 00000111
2189 return (*(stream
->buffer
+ bytepos
) >> (7-bitpos
)) & 1;
2192 uint8_t getByte(uint8_t bits_per_sample
, BitstreamOut
* b
)
2196 for(i
=0 ; i
< bits_per_sample
; i
++)
2198 val
|= (_headBit(b
) << (7-i
));
2203 int getSamples(const char *Cmd
, bool silent
)
2205 //If we get all but the last byte in bigbuf,
2206 // we don't have to worry about remaining trash
2207 // in the last byte in case the bits-per-sample
2208 // does not line up on byte boundaries
2210 uint8_t got
[BIGBUF_SIZE
-1] = { 0 };
2212 int n
= strtol(Cmd
, NULL
, 0);
2217 if (n
> sizeof(got
))
2220 PrintAndLog("Reading %d bytes from device memory\n", n
);
2221 GetFromBigBuf(got
,n
,0);
2222 PrintAndLog("Data fetched");
2223 UsbCommand response
;
2224 WaitForResponse(CMD_ACK
, &response
);
2225 uint8_t bits_per_sample
= 8;
2227 //Old devices without this feature would send 0 at arg[0]
2228 if(response
.arg
[0] > 0)
2230 sample_config
*sc
= (sample_config
*) response
.d
.asBytes
;
2231 PrintAndLog("Samples @ %d bits/smpl, decimation 1:%d ", sc
->bits_per_sample
2233 bits_per_sample
= sc
->bits_per_sample
;
2235 if(bits_per_sample
< 8)
2237 PrintAndLog("Unpacking...");
2238 BitstreamOut bout
= { got
, bits_per_sample
* n
, 0};
2240 for (j
= 0; j
* bits_per_sample
< n
* 8 && j
< sizeof(GraphBuffer
); j
++) {
2241 uint8_t sample
= getByte(bits_per_sample
, &bout
);
2242 GraphBuffer
[j
] = ((int) sample
)- 128;
2245 PrintAndLog("Unpacked %d samples" , j
);
2248 for (int j
= 0; j
< n
; j
++) {
2249 GraphBuffer
[j
] = ((int)got
[j
]) - 128;
2254 RepaintGraphWindow();
2258 int CmdSamples(const char *Cmd
)
2260 return getSamples(Cmd
, false);
2263 int CmdTuneSamples(const char *Cmd
)
2266 printf("\nMeasuring antenna characteristics, please wait...");
2268 UsbCommand c
= {CMD_MEASURE_ANTENNA_TUNING
};
2272 while(!WaitForResponseTimeout(CMD_MEASURED_ANTENNA_TUNING
,&resp
,1000)) {
2276 PrintAndLog("\nNo response from Proxmark. Aborting...");
2282 int vLf125
, vLf134
, vHf
;
2283 vLf125
= resp
.arg
[0] & 0xffff;
2284 vLf134
= resp
.arg
[0] >> 16;
2285 vHf
= resp
.arg
[1] & 0xffff;;
2286 peakf
= resp
.arg
[2] & 0xffff;
2287 peakv
= resp
.arg
[2] >> 16;
2289 PrintAndLog("# LF antenna: %5.2f V @ 125.00 kHz", vLf125
/1000.0);
2290 PrintAndLog("# LF antenna: %5.2f V @ 134.00 kHz", vLf134
/1000.0);
2291 PrintAndLog("# LF optimal: %5.2f V @%9.2f kHz", peakv
/1000.0, 12000.0/(peakf
+1));
2292 PrintAndLog("# HF antenna: %5.2f V @ 13.56 MHz", vHf
/1000.0);
2294 #define LF_UNUSABLE_V 2948 // was 2000. Changed due to bugfix in voltage measurements. LF results are now 47% higher.
2295 #define LF_MARGINAL_V 14739 // was 10000. Changed due to bugfix bug in voltage measurements. LF results are now 47% higher.
2296 #define HF_UNUSABLE_V 3167 // was 2000. Changed due to bugfix in voltage measurements. HF results are now 58% higher.
2297 #define HF_MARGINAL_V 7917 // was 5000. Changed due to bugfix in voltage measurements. HF results are now 58% higher.
2299 if (peakv
< LF_UNUSABLE_V
)
2300 PrintAndLog("# Your LF antenna is unusable.");
2301 else if (peakv
< LF_MARGINAL_V
)
2302 PrintAndLog("# Your LF antenna is marginal.");
2303 if (vHf
< HF_UNUSABLE_V
)
2304 PrintAndLog("# Your HF antenna is unusable.");
2305 else if (vHf
< HF_MARGINAL_V
)
2306 PrintAndLog("# Your HF antenna is marginal.");
2308 if (peakv
>= LF_UNUSABLE_V
) {
2309 for (int i
= 0; i
< 256; i
++) {
2310 GraphBuffer
[i
] = resp
.d
.asBytes
[i
] - 128;
2312 PrintAndLog("Displaying LF tuning graph. Divisor 89 is 134khz, 95 is 125khz.\n");
2314 GraphTraceLen
= 256;
2316 RepaintGraphWindow();
2323 int CmdLoad(const char *Cmd
)
2325 char filename
[FILE_PATH_SIZE
] = {0x00};
2329 if (len
> FILE_PATH_SIZE
) len
= FILE_PATH_SIZE
;
2330 memcpy(filename
, Cmd
, len
);
2332 FILE *f
= fopen(filename
, "r");
2334 PrintAndLog("couldn't open '%s'", filename
);
2340 while (fgets(line
, sizeof (line
), f
)) {
2341 GraphBuffer
[GraphTraceLen
] = atoi(line
);
2345 PrintAndLog("loaded %d samples", GraphTraceLen
);
2346 RepaintGraphWindow();
2350 int CmdLtrim(const char *Cmd
)
2354 for (int i
= ds
; i
< GraphTraceLen
; ++i
)
2355 GraphBuffer
[i
-ds
] = GraphBuffer
[i
];
2356 GraphTraceLen
-= ds
;
2358 RepaintGraphWindow();
2362 // trim graph to input argument length
2363 int CmdRtrim(const char *Cmd
)
2369 RepaintGraphWindow();
2374 * Manchester demodulate a bitstream. The bitstream needs to be already in
2375 * the GraphBuffer as 0 and 1 values
2377 * Give the clock rate as argument in order to help the sync - the algorithm
2378 * resyncs at each pulse anyway.
2380 * Not optimized by any means, this is the 1st time I'm writing this type of
2381 * routine, feel free to improve...
2383 * 1st argument: clock rate (as number of samples per clock rate)
2384 * Typical values can be 64, 32, 128...
2386 int CmdManchesterDemod(const char *Cmd
)
2388 int i
, j
, invert
= 0;
2394 int hithigh
, hitlow
, first
;
2400 /* check if we're inverting output */
2403 PrintAndLog("Inverting output");
2408 while(*Cmd
== ' '); // in case a 2nd argument was given
2411 /* Holds the decoded bitstream: each clock period contains 2 bits */
2412 /* later simplified to 1 bit after manchester decoding. */
2413 /* Add 10 bits to allow for noisy / uncertain traces without aborting */
2414 /* int BitStream[GraphTraceLen*2/clock+10]; */
2416 /* But it does not work if compiling on WIndows: therefore we just allocate a */
2418 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
] = {0};
2420 /* Detect high and lows */
2421 for (i
= 0; i
< GraphTraceLen
; i
++)
2423 if (GraphBuffer
[i
] > high
)
2424 high
= GraphBuffer
[i
];
2425 else if (GraphBuffer
[i
] < low
)
2426 low
= GraphBuffer
[i
];
2430 clock
= GetAskClock(Cmd
, high
, 1);
2432 int tolerance
= clock
/4;
2434 /* Detect first transition */
2435 /* Lo-Hi (arbitrary) */
2436 /* skip to the first high */
2437 for (i
= 0; i
< GraphTraceLen
; i
++)
2438 if (GraphBuffer
[i
] == high
)
2440 /* now look for the first low */
2441 for (; i
< GraphTraceLen
; i
++)
2443 if (GraphBuffer
[i
] == low
)
2450 /* If we're not working with 1/0s, demod based off clock */
2453 bit
= 0; /* We assume the 1st bit is zero, it may not be
2454 * the case: this routine (I think) has an init problem.
2457 for (; i
< (int)(GraphTraceLen
/ clock
); i
++)
2463 /* Find out if we hit both high and low peaks */
2464 for (j
= 0; j
< clock
; j
++)
2466 if (GraphBuffer
[(i
* clock
) + j
] == high
)
2468 else if (GraphBuffer
[(i
* clock
) + j
] == low
)
2471 /* it doesn't count if it's the first part of our read
2472 because it's really just trailing from the last sequence */
2473 if (first
&& (hithigh
|| hitlow
))
2474 hithigh
= hitlow
= 0;
2478 if (hithigh
&& hitlow
)
2482 /* If we didn't hit both high and low peaks, we had a bit transition */
2483 if (!hithigh
|| !hitlow
)
2486 BitStream
[bit2idx
++] = bit
^ invert
;
2490 /* standard 1/0 bitstream */
2494 /* Then detect duration between 2 successive transitions */
2495 for (bitidx
= 1; i
< GraphTraceLen
; i
++)
2497 if (GraphBuffer
[i
-1] != GraphBuffer
[i
])
2502 // Error check: if bitidx becomes too large, we do not
2503 // have a Manchester encoded bitstream or the clock is really
2505 if (bitidx
> (GraphTraceLen
*2/clock
+8) ) {
2506 PrintAndLog("Error: the clock you gave is probably wrong, aborting.");
2509 // Then switch depending on lc length:
2510 // Tolerance is 1/4 of clock rate (arbitrary)
2511 if (abs(lc
-clock
/2) < tolerance
) {
2512 // Short pulse : either "1" or "0"
2513 BitStream
[bitidx
++]=GraphBuffer
[i
-1];
2514 } else if (abs(lc
-clock
) < tolerance
) {
2515 // Long pulse: either "11" or "00"
2516 BitStream
[bitidx
++]=GraphBuffer
[i
-1];
2517 BitStream
[bitidx
++]=GraphBuffer
[i
-1];
2521 PrintAndLog("Warning: Manchester decode error for pulse width detection.");
2522 PrintAndLog("(too many of those messages mean either the stream is not Manchester encoded, or clock is wrong)");
2526 PrintAndLog("Error: too many detection errors, aborting.");
2533 // At this stage, we now have a bitstream of "01" ("1") or "10" ("0"), parse it into final decoded bitstream
2534 // Actually, we overwrite BitStream with the new decoded bitstream, we just need to be careful
2535 // to stop output at the final bitidx2 value, not bitidx
2536 for (i
= 0; i
< bitidx
; i
+= 2) {
2537 if ((BitStream
[i
] == 0) && (BitStream
[i
+1] == 1)) {
2538 BitStream
[bit2idx
++] = 1 ^ invert
;
2539 } else if ((BitStream
[i
] == 1) && (BitStream
[i
+1] == 0)) {
2540 BitStream
[bit2idx
++] = 0 ^ invert
;
2542 // We cannot end up in this state, this means we are unsynchronized,
2546 PrintAndLog("Unsynchronized, resync...");
2547 PrintAndLog("(too many of those messages mean the stream is not Manchester encoded)");
2551 PrintAndLog("Error: too many decode errors, aborting.");
2558 PrintAndLog("Manchester decoded bitstream");
2559 // Now output the bitstream to the scrollback by line of 16 bits
2560 for (i
= 0; i
< (bit2idx
-16); i
+=16) {
2561 PrintAndLog("%i %i %i %i %i %i %i %i %i %i %i %i %i %i %i %i",
2582 /* Modulate our data into manchester */
2583 int CmdManchesterMod(const char *Cmd
)
2587 int bit
, lastbit
, wave
;
2590 clock
= GetAskClock(Cmd
, 0, 1);
2594 for (i
= 0; i
< (int)(GraphTraceLen
/ clock
); i
++)
2596 bit
= GraphBuffer
[i
* clock
] ^ 1;
2598 for (j
= 0; j
< (int)(clock
/2); j
++)
2599 GraphBuffer
[(i
* clock
) + j
] = bit
^ lastbit
^ wave
;
2600 for (j
= (int)(clock
/2); j
< clock
; j
++)
2601 GraphBuffer
[(i
* clock
) + j
] = bit
^ lastbit
^ wave
^ 1;
2603 /* Keep track of how we start our wave and if we changed or not this time */
2604 wave
^= bit
^ lastbit
;
2608 RepaintGraphWindow();
2612 int CmdNorm(const char *Cmd
)
2615 int max
= INT_MIN
, min
= INT_MAX
;
2617 for (i
= 10; i
< GraphTraceLen
; ++i
) {
2618 if (GraphBuffer
[i
] > max
)
2619 max
= GraphBuffer
[i
];
2620 if (GraphBuffer
[i
] < min
)
2621 min
= GraphBuffer
[i
];
2625 for (i
= 0; i
< GraphTraceLen
; ++i
) {
2626 GraphBuffer
[i
] = (GraphBuffer
[i
] - ((max
+ min
) / 2)) * 256 /
2628 //marshmelow: adjusted *1000 to *256 to make +/- 128 so demod commands still work
2631 RepaintGraphWindow();
2635 int CmdPlot(const char *Cmd
)
2641 int CmdSave(const char *Cmd
)
2643 char filename
[FILE_PATH_SIZE
] = {0x00};
2647 if (len
> FILE_PATH_SIZE
) len
= FILE_PATH_SIZE
;
2648 memcpy(filename
, Cmd
, len
);
2651 FILE *f
= fopen(filename
, "w");
2653 PrintAndLog("couldn't open '%s'", filename
);
2657 for (i
= 0; i
< GraphTraceLen
; i
++) {
2658 fprintf(f
, "%d\n", GraphBuffer
[i
]);
2661 PrintAndLog("saved to '%s'", Cmd
);
2665 int CmdScale(const char *Cmd
)
2667 CursorScaleFactor
= atoi(Cmd
);
2668 if (CursorScaleFactor
== 0) {
2669 PrintAndLog("bad, can't have zero scale");
2670 CursorScaleFactor
= 1;
2672 RepaintGraphWindow();
2676 int CmdThreshold(const char *Cmd
)
2678 int threshold
= atoi(Cmd
);
2680 for (int i
= 0; i
< GraphTraceLen
; ++i
) {
2681 if (GraphBuffer
[i
] >= threshold
)
2684 GraphBuffer
[i
] = -1;
2686 RepaintGraphWindow();
2690 int CmdDirectionalThreshold(const char *Cmd
)
2692 int8_t upThres
= param_get8(Cmd
, 0);
2693 int8_t downThres
= param_get8(Cmd
, 1);
2695 printf("Applying Up Threshold: %d, Down Threshold: %d\n", upThres
, downThres
);
2697 int lastValue
= GraphBuffer
[0];
2698 GraphBuffer
[0] = 0; // Will be changed at the end, but init 0 as we adjust to last samples value if no threshold kicks in.
2700 for (int i
= 1; i
< GraphTraceLen
; ++i
) {
2701 // Apply first threshold to samples heading up
2702 if (GraphBuffer
[i
] >= upThres
&& GraphBuffer
[i
] > lastValue
)
2704 lastValue
= GraphBuffer
[i
]; // Buffer last value as we overwrite it.
2707 // Apply second threshold to samples heading down
2708 else if (GraphBuffer
[i
] <= downThres
&& GraphBuffer
[i
] < lastValue
)
2710 lastValue
= GraphBuffer
[i
]; // Buffer last value as we overwrite it.
2711 GraphBuffer
[i
] = -1;
2715 lastValue
= GraphBuffer
[i
]; // Buffer last value as we overwrite it.
2716 GraphBuffer
[i
] = GraphBuffer
[i
-1];
2720 GraphBuffer
[0] = GraphBuffer
[1]; // Aline with first edited sample.
2721 RepaintGraphWindow();
2725 int CmdZerocrossings(const char *Cmd
)
2727 // Zero-crossings aren't meaningful unless the signal is zero-mean.
2734 for (int i
= 0; i
< GraphTraceLen
; ++i
) {
2735 if (GraphBuffer
[i
] * sign
>= 0) {
2736 // No change in sign, reproduce the previous sample count.
2738 GraphBuffer
[i
] = lastZc
;
2740 // Change in sign, reset the sample count.
2742 GraphBuffer
[i
] = lastZc
;
2750 RepaintGraphWindow();
2754 static command_t CommandTable
[] =
2756 {"help", CmdHelp
, 1, "This help"},
2757 {"amp", CmdAmp
, 1, "Amplify peaks"},
2758 //{"askdemod", Cmdaskdemod, 1, "<0 or 1> -- Attempt to demodulate simple ASK tags"},
2759 {"askedgedetect", CmdAskEdgeDetect
, 1, "[threshold] Adjust Graph for manual ask demod using length of sample differences to detect the edge of a wave (default = 25)"},
2760 {"askem410xdemod", CmdAskEM410xDemod
, 1, "[clock] [invert<0|1>] [maxErr] -- Demodulate an EM410x tag from GraphBuffer (args optional)"},
2761 {"askgproxiidemod", CmdG_Prox_II_Demod
, 1, "Demodulate a G Prox II tag from GraphBuffer"},
2762 {"autocorr", CmdAutoCorr
, 1, "[window length] [g] -- Autocorrelation over window - g to save back to GraphBuffer (overwrite)"},
2763 {"biphaserawdecode",CmdBiphaseDecodeRaw
,1,"[offset] [invert<0|1>] Biphase decode bin stream in DemodBuffer (offset = 0|1 bits to shift the decode start)"},
2764 {"bitsamples", CmdBitsamples
, 0, "Get raw samples as bitstring"},
2765 //{"bitstream", CmdBitstream, 1, "[clock rate] -- Convert waveform into a bitstream"},
2766 {"buffclear", CmdBuffClear
, 1, "Clear sample buffer and graph window"},
2767 {"dec", CmdDec
, 1, "Decimate samples"},
2768 {"detectclock", CmdDetectClockRate
, 1, "[modulation] Detect clock rate of wave in GraphBuffer (options: 'a','f','n','p' for ask, fsk, nrz, psk respectively)"},
2769 //{"fskdemod", CmdFSKdemod, 1, "Demodulate graph window as a HID FSK"},
2770 {"fskawiddemod", CmdFSKdemodAWID
, 1, "Demodulate an AWID FSK tag from GraphBuffer"},
2771 //{"fskfcdetect", CmdFSKfcDetect, 1, "Try to detect the Field Clock of an FSK wave"},
2772 {"fskhiddemod", CmdFSKdemodHID
, 1, "Demodulate a HID FSK tag from GraphBuffer"},
2773 {"fskiodemod", CmdFSKdemodIO
, 1, "Demodulate an IO Prox FSK tag from GraphBuffer"},
2774 {"fskpyramiddemod", CmdFSKdemodPyramid
, 1, "Demodulate a Pyramid FSK tag from GraphBuffer"},
2775 {"fskparadoxdemod", CmdFSKdemodParadox
, 1, "Demodulate a Paradox FSK tag from GraphBuffer"},
2776 {"getbitstream", CmdGetBitStream
, 1, "Convert GraphBuffer's >=1 values to 1 and <1 to 0"},
2777 {"grid", CmdGrid
, 1, "<x> <y> -- overlay grid on graph window, use zero value to turn off either"},
2778 {"hexsamples", CmdHexsamples
, 0, "<bytes> [<offset>] -- Dump big buffer as hex bytes"},
2779 {"hide", CmdHide
, 1, "Hide graph window"},
2780 {"hpf", CmdHpf
, 1, "Remove DC offset from trace"},
2781 {"load", CmdLoad
, 1, "<filename> -- Load trace (to graph window"},
2782 {"ltrim", CmdLtrim
, 1, "<samples> -- Trim samples from left of trace"},
2783 {"rtrim", CmdRtrim
, 1, "<location to end trace> -- Trim samples from right of trace"},
2784 //{"mandemod", CmdManchesterDemod, 1, "[i] [clock rate] -- Manchester demodulate binary stream (option 'i' to invert output)"},
2785 {"manrawdecode", Cmdmandecoderaw
, 1, "Manchester decode binary stream in DemodBuffer"},
2786 {"manmod", CmdManchesterMod
, 1, "[clock rate] -- Manchester modulate a binary stream"},
2787 {"norm", CmdNorm
, 1, "Normalize max/min to +/-128"},
2788 {"plot", CmdPlot
, 1, "Show graph window (hit 'h' in window for keystroke help)"},
2789 {"printdemodbuffer",CmdPrintDemodBuff
, 1, "[x] -- print the data in the DemodBuffer - 'x' for hex output"},
2790 {"pskindalademod", CmdIndalaDecode
, 1, "[clock] [invert<0|1>] -- Demodulate an indala tag (PSK1) from GraphBuffer (args optional)"},
2791 {"rawdemod", CmdRawDemod
, 1, "[modulation] ... <options> -see help (h option) -- Demodulate the data in the GraphBuffer and output binary"},
2792 {"samples", CmdSamples
, 0, "[512 - 40000] -- Get raw samples for graph window (GraphBuffer)"},
2793 {"save", CmdSave
, 1, "<filename> -- Save trace (from graph window)"},
2794 {"scale", CmdScale
, 1, "<int> -- Set cursor display scale"},
2795 {"setdebugmode", CmdSetDebugMode
, 1, "<0|1> -- Turn on or off Debugging Mode for demods"},
2796 {"shiftgraphzero", CmdGraphShiftZero
, 1, "<shift> -- Shift 0 for Graphed wave + or - shift value"},
2797 //{"threshold", CmdThreshold, 1, "<threshold> -- Maximize/minimize every value in the graph window depending on threshold"},
2798 {"dirthreshold", CmdDirectionalThreshold
, 1, "<thres up> <thres down> -- Max rising higher up-thres/ Min falling lower down-thres, keep rest as prev."},
2799 {"tune", CmdTuneSamples
, 0, "Get hw tune samples for graph window"},
2800 {"undec", CmdUndec
, 1, "Un-decimate samples by 2"},
2801 {"zerocrossings", CmdZerocrossings
, 1, "Count time between zero-crossings"},
2802 {NULL
, NULL
, 0, NULL
}
2805 int CmdData(const char *Cmd
)
2807 CmdsParse(CommandTable
, Cmd
);
2811 int CmdHelp(const char *Cmd
)
2813 CmdsHelp(CommandTable
);