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"
28 uint8_t DemodBuffer
[MAX_DEMOD_BUF_LEN
];
29 uint8_t g_debugMode
=0;
30 size_t DemodBufferLen
=0;
31 static int CmdHelp(const char *Cmd
);
33 //set the demod buffer with given array of binary (one bit per byte)
35 void setDemodBuf(uint8_t *buff
, size_t size
, size_t startIdx
)
40 if ( size
>= MAX_DEMOD_BUF_LEN
)
41 size
= MAX_DEMOD_BUF_LEN
;
44 for (; i
< size
; i
++){
45 DemodBuffer
[i
]=buff
[startIdx
++];
51 int CmdSetDebugMode(const char *Cmd
)
54 sscanf(Cmd
, "%i", &demod
);
55 g_debugMode
=(uint8_t)demod
;
59 int usage_data_printdemodbuf(){
60 PrintAndLog("Usage: data printdemodbuffer x o <offset>");
61 PrintAndLog("Options: ");
62 PrintAndLog(" h This help");
63 PrintAndLog(" x output in hex (omit for binary output)");
64 PrintAndLog(" o <offset> enter offset in # of bits");
69 void printDemodBuff(void)
71 int bitLen
= DemodBufferLen
;
73 PrintAndLog("no bits found in demod buffer");
76 if (bitLen
>512) bitLen
=512; //max output to 512 bits if we have more - should be plenty
78 char *bin
= sprint_bin_break(DemodBuffer
,bitLen
,16);
79 PrintAndLog("%s",bin
);
84 int CmdPrintDemodBuff(const char *Cmd
)
91 while(param_getchar(Cmd
, cmdp
) != 0x00)
93 switch(param_getchar(Cmd
, cmdp
))
97 return usage_data_printdemodbuf();
105 offset
= param_get8(Cmd
, cmdp
+1);
106 if (!offset
) errors
= true;
110 PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd
, cmdp
));
117 if(errors
) return usage_data_printdemodbuf();
119 int numBits
= (DemodBufferLen
-offset
) & 0x7FC; //make sure we don't exceed our string
122 char *buf
= (char *) (DemodBuffer
+ offset
);
123 numBits
= binarraytohex(hex
, buf
, numBits
);
124 if (numBits
==0) return 0;
125 PrintAndLog("DemodBuffer: %s",hex
);
127 //setDemodBuf(DemodBuffer, DemodBufferLen-offset, offset);
128 char *bin
= sprint_bin_break(DemodBuffer
+offset
,numBits
,16);
129 PrintAndLog("DemodBuffer:\n%s",bin
);
135 //this function strictly converts >1 to 1 and <1 to 0 for each sample in the graphbuffer
136 int CmdGetBitStream(const char *Cmd
)
140 for (i
= 0; i
< GraphTraceLen
; i
++) {
141 if (GraphBuffer
[i
] >= 1) {
147 RepaintGraphWindow();
152 //print 64 bit EM410x ID in multiple formats
153 void printEM410x(uint32_t hi
, uint64_t id
)
160 for (ii
=5; ii
>0;ii
--){
162 id2lo
=(id2lo
<<1LL) | ((id
& (iii
<< (i
+((ii
-1)*8)))) >> (i
+((ii
-1)*8)));
166 //output 88 bit em id
167 PrintAndLog("\nEM TAG ID : %06X%016llX", hi
, id
);
169 //output 40 bit em id
170 PrintAndLog("\nEM TAG ID : %010llX", id
);
171 PrintAndLog("Unique TAG ID : %010llX", id2lo
);
172 PrintAndLog("\nPossible de-scramble patterns");
173 PrintAndLog("HoneyWell IdentKey {");
174 PrintAndLog("DEZ 8 : %08lld",id
& 0xFFFFFF);
175 PrintAndLog("DEZ 10 : %010lld",id
& 0xFFFFFFFF);
176 PrintAndLog("DEZ 5.5 : %05lld.%05lld",(id
>>16LL) & 0xFFFF,(id
& 0xFFFF));
177 PrintAndLog("DEZ 3.5A : %03lld.%05lld",(id
>>32ll),(id
& 0xFFFF));
178 PrintAndLog("DEZ 3.5B : %03lld.%05lld",(id
& 0xFF000000) >> 24,(id
& 0xFFFF));
179 PrintAndLog("DEZ 3.5C : %03lld.%05lld",(id
& 0xFF0000) >> 16,(id
& 0xFFFF));
180 PrintAndLog("DEZ 14/IK2 : %014lld",id
);
181 PrintAndLog("DEZ 15/IK3 : %015lld",id2lo
);
182 PrintAndLog("DEZ 20/ZK : %02lld%02lld%02lld%02lld%02lld%02lld%02lld%02lld%02lld%02lld",
183 (id2lo
& 0xf000000000) >> 36,
184 (id2lo
& 0x0f00000000) >> 32,
185 (id2lo
& 0x00f0000000) >> 28,
186 (id2lo
& 0x000f000000) >> 24,
187 (id2lo
& 0x0000f00000) >> 20,
188 (id2lo
& 0x00000f0000) >> 16,
189 (id2lo
& 0x000000f000) >> 12,
190 (id2lo
& 0x0000000f00) >> 8,
191 (id2lo
& 0x00000000f0) >> 4,
192 (id2lo
& 0x000000000f)
194 uint64_t paxton
= (((id
>>32) << 24) | (id
& 0xffffff)) + 0x143e00;
195 PrintAndLog("}\nOther : %05lld_%03lld_%08lld",(id
&0xFFFF),((id
>>16LL) & 0xFF),(id
& 0xFFFFFF));
196 PrintAndLog("Pattern Paxton : %lld [0x%llX]", paxton
, paxton
);
198 uint32_t p1id
= (id
& 0xFFFFFF);
199 uint8_t arr
[32] = {0x00};
202 for (; i
< 24; ++i
, --j
){
203 arr
[i
] = (p1id
>> i
) & 1;
237 PrintAndLog("Pattern 1 : %d [0x%X]", p1
, p1
);
239 uint16_t sebury1
= id
& 0xFFFF;
240 uint8_t sebury2
= (id
>> 16) & 0x7F;
241 uint32_t sebury3
= id
& 0x7FFFFF;
242 PrintAndLog("Pattern Sebury : %d %d %d [0x%X 0x%X 0x%X]", sebury1
, sebury2
, sebury3
, sebury1
, sebury2
, sebury3
);
248 int AskEm410xDecode(bool verbose
, uint32_t *hi
, uint64_t *lo
)
251 size_t BitLen
= DemodBufferLen
;
252 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
253 memcpy(BitStream
, DemodBuffer
, BitLen
);
254 if (Em410xDecode(BitStream
, &BitLen
, &idx
, hi
, lo
)){
255 //set GraphBuffer for clone or sim command
256 setDemodBuf(BitStream
, BitLen
, idx
);
258 PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx
, BitLen
);
262 PrintAndLog("EM410x pattern found: ");
263 printEM410x(*hi
, *lo
);
270 int AskEm410xDemod(const char *Cmd
, uint32_t *hi
, uint64_t *lo
, bool verbose
)
272 if (!ASKDemod(Cmd
, FALSE
, FALSE
, 1)) return 0;
273 return AskEm410xDecode(verbose
, hi
, lo
);
277 //takes 3 arguments - clock, invert and maxErr as integers
278 //attempts to demodulate ask while decoding manchester
279 //prints binary found and saves in graphbuffer for further commands
280 int CmdAskEM410xDemod(const char *Cmd
)
282 char cmdp
= param_getchar(Cmd
, 0);
283 if (strlen(Cmd
) > 10 || cmdp
== 'h' || cmdp
== 'H') {
284 PrintAndLog("Usage: data askem410xdemod [clock] <0|1> [maxError]");
285 PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
286 PrintAndLog(" <invert>, 1 for invert output");
287 PrintAndLog(" [set maximum allowed errors], default = 100.");
289 PrintAndLog(" sample: data askem410xdemod = demod an EM410x Tag ID from GraphBuffer");
290 PrintAndLog(" : data askem410xdemod 32 = demod an EM410x Tag ID from GraphBuffer using a clock of RF/32");
291 PrintAndLog(" : data askem410xdemod 32 1 = demod an EM410x Tag ID from GraphBuffer using a clock of RF/32 and inverting data");
292 PrintAndLog(" : data askem410xdemod 1 = demod an EM410x Tag ID from GraphBuffer while inverting data");
293 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");
298 return AskEm410xDemod(Cmd
, &hi
, &lo
, true);
302 //Cmd Args: Clock, invert, maxErr, maxLen as integers and amplify as char == 'a'
303 // (amp may not be needed anymore)
304 //verbose will print results and demoding messages
305 //emSearch will auto search for EM410x format in bitstream
306 //askType switches decode: ask/raw = 0, ask/manchester = 1
307 int ASKDemod(const char *Cmd
, bool verbose
, bool emSearch
, uint8_t askType
)
314 char amp
= param_getchar(Cmd
, 0);
315 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
316 sscanf(Cmd
, "%i %i %i %i %c", &clk
, &invert
, &maxErr
, &maxLen
, &
);
317 if (!maxLen
) maxLen
= 512*64;
318 if (invert
!= 0 && invert
!= 1) {
319 PrintAndLog("Invalid argument: %s", Cmd
);
326 if (amp
== 'a' || amp
== 'A') askAmp
=1;
327 size_t BitLen
= getFromGraphBuf(BitStream
);
328 if (g_debugMode
) PrintAndLog("DEBUG: Bitlen from grphbuff: %d",BitLen
);
329 if (BitLen
<255) return 0;
330 if (maxLen
<BitLen
&& maxLen
!= 0) BitLen
= maxLen
;
332 int errCnt
= askdemod(BitStream
, &BitLen
, &clk
, &invert
, maxErr
, askAmp
, askType
);
333 if (errCnt
<0 || BitLen
<16){ //if fatal error (or -1)
334 if (g_debugMode
) PrintAndLog("DEBUG: no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt
,invert
,BitLen
,clk
);
338 if (g_debugMode
) PrintAndLog("DEBUG: Too many errors found, errors:%d, bits:%d, clock:%d",errCnt
, BitLen
, clk
);
341 if (verbose
|| g_debugMode
) PrintAndLog("\nUsing Clock:%d, Invert:%d, Bits Found:%d",clk
,invert
,BitLen
);
344 setDemodBuf(BitStream
,BitLen
,0);
345 if (verbose
|| g_debugMode
){
346 if (errCnt
>0) PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt
);
347 if (askType
) PrintAndLog("ASK/Manchester - Clock: %d - Decoded bitstream:",clk
);
348 else PrintAndLog("ASK/Raw - Clock: %d - Decoded bitstream:",clk
);
349 // Now output the bitstream to the scrollback by line of 16 bits
356 AskEm410xDecode(true, &hi
, &lo
);
362 //takes 5 arguments - clock, invert, maxErr, maxLen as integers and amplify as char == 'a'
363 //attempts to demodulate ask while decoding manchester
364 //prints binary found and saves in graphbuffer for further commands
365 int Cmdaskmandemod(const char *Cmd
)
367 char cmdp
= param_getchar(Cmd
, 0);
368 if (strlen(Cmd
) > 25 || cmdp
== 'h' || cmdp
== 'H') {
369 PrintAndLog("Usage: data rawdemod am [clock] <invert> [maxError] [maxLen] [amplify]");
370 PrintAndLog(" [set clock as integer] optional, if not set, autodetect");
371 PrintAndLog(" <invert>, 1 to invert output");
372 PrintAndLog(" [set maximum allowed errors], default = 100");
373 PrintAndLog(" [set maximum Samples to read], default = 32768 (512 bits at rf/64)");
374 PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp");
376 PrintAndLog(" sample: data rawdemod am = demod an ask/manchester tag from GraphBuffer");
377 PrintAndLog(" : data rawdemod am 32 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32");
378 PrintAndLog(" : data rawdemod am 32 1 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32 and inverting data");
379 PrintAndLog(" : data rawdemod am 1 = demod an ask/manchester tag from GraphBuffer while inverting data");
380 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");
383 return ASKDemod(Cmd
, TRUE
, TRUE
, 1);
388 //stricktly take 10 and 01 and convert to 0 and 1
389 int Cmdmandecoderaw(const char *Cmd
)
396 char cmdp
= param_getchar(Cmd
, 0);
397 if (strlen(Cmd
) > 5 || cmdp
== 'h' || cmdp
== 'H') {
398 PrintAndLog("Usage: data manrawdecode [invert] [maxErr]");
399 PrintAndLog(" Takes 10 and 01 and converts to 0 and 1 respectively");
400 PrintAndLog(" --must have binary sequence in demodbuffer (run data askrawdemod first)");
401 PrintAndLog(" [invert] invert output");
402 PrintAndLog(" [maxErr] set number of errors allowed (default = 20)");
404 PrintAndLog(" sample: data manrawdecode = decode manchester bitstream from the demodbuffer");
407 if (DemodBufferLen
==0) return 0;
408 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
410 for (;i
<DemodBufferLen
;++i
){
411 if (DemodBuffer
[i
]>high
) high
=DemodBuffer
[i
];
412 else if(DemodBuffer
[i
]<low
) low
=DemodBuffer
[i
];
413 BitStream
[i
]=DemodBuffer
[i
];
415 if (high
>7 || low
<0 ){
416 PrintAndLog("Error: please raw demod the wave first then manchester raw decode");
420 sscanf(Cmd
, "%i %i", &invert
, &maxErr
);
422 errCnt
=manrawdecode(BitStream
, &size
, invert
);
424 PrintAndLog("Too many errors: %d",errCnt
);
427 PrintAndLog("Manchester Decoded - # errors:%d - data:",errCnt
);
428 PrintAndLog("%s", sprint_bin_break(BitStream
, size
, 16));
433 if (Em410xDecode(BitStream
, &size
, &idx
, &hi
, &id
)){
434 //need to adjust to set bitstream back to manchester encoded data
435 //setDemodBuf(BitStream, size, idx);
445 //take 01 or 10 = 0 and 11 or 00 = 1
446 //takes 2 arguments "offset" default = 0 if 1 it will shift the decode by one bit
447 // and "invert" default = 0 if 1 it will invert output
448 // the argument offset allows us to manually shift if the output is incorrect - [EDIT: now auto detects]
449 int CmdBiphaseDecodeRaw(const char *Cmd
)
452 int offset
=0, invert
=0, maxErr
=20, errCnt
=0;
453 char cmdp
= param_getchar(Cmd
, 0);
454 if (strlen(Cmd
) > 3 || cmdp
== 'h' || cmdp
== 'H') {
455 PrintAndLog("Usage: data biphaserawdecode [offset] [invert] [maxErr]");
456 PrintAndLog(" Converts 10 or 01 to 1 and 11 or 00 to 0");
457 PrintAndLog(" --must have binary sequence in demodbuffer (run data askrawdemod first)");
458 PrintAndLog(" --invert for Conditional Dephase Encoding (CDP) AKA Differential Manchester");
460 PrintAndLog(" [offset <0|1>], set to 0 not to adjust start position or to 1 to adjust decode start position");
461 PrintAndLog(" [invert <0|1>], set to 1 to invert output");
462 PrintAndLog(" [maxErr int], set max errors tolerated - default=20");
464 PrintAndLog(" sample: data biphaserawdecode = decode biphase bitstream from the demodbuffer");
465 PrintAndLog(" sample: data biphaserawdecode 1 1 = decode biphase bitstream from the demodbuffer, set offset, and invert output");
468 sscanf(Cmd
, "%i %i %i", &offset
, &invert
, &maxErr
);
469 if (DemodBufferLen
==0){
470 PrintAndLog("DemodBuffer Empty - run 'data rawdemod ar' first");
473 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
474 memcpy(BitStream
, DemodBuffer
, DemodBufferLen
);
475 size
= DemodBufferLen
;
476 errCnt
=BiphaseRawDecode(BitStream
, &size
, offset
, invert
);
478 PrintAndLog("Error during decode:%d", errCnt
);
482 PrintAndLog("Too many errors attempting to decode: %d",errCnt
);
487 PrintAndLog("# Errors found during Demod (shown as 7 in bit stream): %d",errCnt
);
489 PrintAndLog("Biphase Decoded using offset: %d - # invert:%d - data:",offset
,invert
);
490 PrintAndLog("%s", sprint_bin_break(BitStream
, size
, 16));
492 if (offset
) setDemodBuf(DemodBuffer
,DemodBufferLen
-offset
, offset
); //remove first bit from raw demod
497 // - ASK Demod then Biphase decode GraphBuffer samples
498 int ASKbiphaseDemod(const char *Cmd
, bool verbose
)
500 //ask raw demod GraphBuffer first
501 int offset
=0, clk
=0, invert
=0, maxErr
=0;
502 sscanf(Cmd
, "%i %i %i %i", &offset
, &clk
, &invert
, &maxErr
);
504 uint8_t BitStream
[MAX_DEMOD_BUF_LEN
];
505 size_t size
= getFromGraphBuf(BitStream
);
506 //invert here inverts the ask raw demoded bits which has no effect on the demod, but we need the pointer
507 int errCnt
= askdemod(BitStream
, &size
, &clk
, &invert
, maxErr
, 0, 0);
508 if ( errCnt
< 0 || errCnt
> maxErr
) {
509 if (g_debugMode
) PrintAndLog("DEBUG: no data or error found %d, clock: %d", errCnt
, clk
);
513 //attempt to Biphase decode BitStream
514 errCnt
= BiphaseRawDecode(BitStream
, &size
, offset
, invert
);
516 if (g_debugMode
|| verbose
) PrintAndLog("Error BiphaseRawDecode: %d", errCnt
);
519 if (errCnt
> maxErr
) {
520 if (g_debugMode
|| verbose
) PrintAndLog("Error BiphaseRawDecode too many errors: %d", errCnt
);
523 //success set DemodBuffer and return
524 setDemodBuf(BitStream
, size
, 0);
525 if (g_debugMode
|| verbose
){
526 PrintAndLog("Biphase Decoded using offset: %d - clock: %d - # errors:%d - data:",offset
,clk
,errCnt
);
531 //by marshmellow - see ASKbiphaseDemod
532 int Cmdaskbiphdemod(const char *Cmd
)
534 char cmdp
= param_getchar(Cmd
, 0);
535 if (strlen(Cmd
) > 25 || cmdp
== 'h' || cmdp
== 'H') {
536 PrintAndLog("Usage: data rawdemod ab [offset] [clock] <invert> [maxError] [maxLen] <amplify>");
537 PrintAndLog(" [offset], offset to begin biphase, default=0");
538 PrintAndLog(" [set clock as integer] optional, if not set, autodetect");
539 PrintAndLog(" <invert>, 1 to invert output");
540 PrintAndLog(" [set maximum allowed errors], default = 100");
541 PrintAndLog(" [set maximum Samples to read], default = 32768 (512 bits at rf/64)");
542 PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp");
543 PrintAndLog(" NOTE: <invert> can be entered as second or third argument");
544 PrintAndLog(" NOTE: <amplify> can be entered as first, second or last argument");
545 PrintAndLog(" NOTE: any other arg must have previous args set to work");
547 PrintAndLog(" NOTE: --invert for Conditional Dephase Encoding (CDP) AKA Differential Manchester");
549 PrintAndLog(" sample: data rawdemod ab = demod an ask/biph tag from GraphBuffer");
550 PrintAndLog(" : data rawdemod ab 0 a = demod an ask/biph tag from GraphBuffer, amplified");
551 PrintAndLog(" : data rawdemod ab 1 32 = demod an ask/biph tag from GraphBuffer using an offset of 1 and a clock of RF/32");
552 PrintAndLog(" : data rawdemod ab 0 32 1 = demod an ask/biph tag from GraphBuffer using a clock of RF/32 and inverting data");
553 PrintAndLog(" : data rawdemod ab 0 1 = demod an ask/biph tag from GraphBuffer while inverting data");
554 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");
555 PrintAndLog(" : data rawdemod ab 0 64 1 0 0 a = demod an ask/biph tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors, and amp");
558 return ASKbiphaseDemod(Cmd
, TRUE
);
562 //attempts to demodulate and identify a G_Prox_II verex/chubb card
563 //WARNING: if it fails during some points it will destroy the DemodBuffer data
564 // but will leave the GraphBuffer intact.
565 //if successful it will push askraw data back to demod buffer ready for emulation
566 int CmdG_Prox_II_Demod(const char *Cmd
)
568 if (!ASKbiphaseDemod(Cmd
, FALSE
)){
569 if (g_debugMode
) PrintAndLog("ASKbiphaseDemod failed 1st try");
572 size_t size
= DemodBufferLen
;
573 //call lfdemod.c demod for gProxII
574 int ans
= gProxII_Demod(DemodBuffer
, &size
);
576 if (g_debugMode
) PrintAndLog("Error gProxII_Demod");
580 uint32_t ByteStream
[65] = {0x00};
585 size_t startIdx
= ans
+ 6; //start after preamble
586 for (size_t idx
= 0; idx
<size
-6; idx
++){
587 if ((idx
+1) % 5 == 0){
588 //spacer bit - should be 0
589 if (DemodBuffer
[startIdx
+idx
] != 0) {
590 if (g_debugMode
) PrintAndLog("Error spacer not 0: %d, pos: %d",DemodBuffer
[startIdx
+idx
],startIdx
+idx
);
595 if (keyCnt
<8){ //lsb first
596 xorKey
= xorKey
| (DemodBuffer
[startIdx
+idx
]<<keyCnt
);
598 if (keyCnt
==8 && g_debugMode
) PrintAndLog("xorKey Found: %02x", xorKey
);
602 ByteStream
[ByteCnt
] = ByteStream
[ByteCnt
] | (DemodBuffer
[startIdx
+idx
]<<bitCnt
);
604 if (bitCnt
% 8 == 0){
605 if (g_debugMode
) PrintAndLog("byte %d: %02x",ByteCnt
,ByteStream
[ByteCnt
]);
610 for (uint8_t i
= 0; i
< ByteCnt
; i
++){
611 ByteStream
[i
] ^= xorKey
; //xor
612 if (g_debugMode
) PrintAndLog("byte %d after xor: %02x", i
, ByteStream
[i
]);
614 //now ByteStream contains 64 bytes of decrypted raw tag data
616 uint8_t fmtLen
= ByteStream
[0]>>2;
619 uint32_t raw1
= bytebits_to_byte(DemodBuffer
+ans
,32);
620 uint32_t raw2
= bytebits_to_byte(DemodBuffer
+ans
+32, 32);
621 uint32_t raw3
= bytebits_to_byte(DemodBuffer
+ans
+64, 32);
624 FC
= ((ByteStream
[3] & 0x7F)<<7) | (ByteStream
[4]>>1);
625 Card
= ((ByteStream
[4]&1)<<19) | (ByteStream
[5]<<11) | (ByteStream
[6]<<3) | (ByteStream
[7]>>5);
626 PrintAndLog("G-Prox-II Found: FmtLen %d, FC %d, Card %d",fmtLen
,FC
,Card
);
627 } else if(fmtLen
==26){
628 FC
= ((ByteStream
[3] & 0x7F)<<1) | (ByteStream
[4]>>7);
629 Card
= ((ByteStream
[4]&0x7F)<<9) | (ByteStream
[5]<<1) | (ByteStream
[6]>>7);
630 PrintAndLog("G-Prox-II Found: FmtLen %d, FC %d, Card %d",fmtLen
,FC
,Card
);
632 PrintAndLog("Unknown G-Prox-II Fmt Found: FmtLen %d",fmtLen
);
634 PrintAndLog("Raw: %08x%08x%08x", raw1
,raw2
,raw3
);
635 setDemodBuf(DemodBuffer
+ans
, 96, 0);
639 //by marshmellow - see ASKDemod
640 int Cmdaskrawdemod(const char *Cmd
)
642 char cmdp
= param_getchar(Cmd
, 0);
643 if (strlen(Cmd
) > 25 || cmdp
== 'h' || cmdp
== 'H') {
644 PrintAndLog("Usage: data rawdemod ar [clock] <invert> [maxError] [maxLen] [amplify]");
645 PrintAndLog(" [set clock as integer] optional, if not set, autodetect");
646 PrintAndLog(" <invert>, 1 to invert output");
647 PrintAndLog(" [set maximum allowed errors], default = 100");
648 PrintAndLog(" [set maximum Samples to read], default = 32768 (1024 bits at rf/64)");
649 PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp");
651 PrintAndLog(" sample: data rawdemod ar = demod an ask tag from GraphBuffer");
652 PrintAndLog(" : data rawdemod ar a = demod an ask tag from GraphBuffer, amplified");
653 PrintAndLog(" : data rawdemod ar 32 = demod an ask tag from GraphBuffer using a clock of RF/32");
654 PrintAndLog(" : data rawdemod ar 32 1 = demod an ask tag from GraphBuffer using a clock of RF/32 and inverting data");
655 PrintAndLog(" : data rawdemod ar 1 = demod an ask tag from GraphBuffer while inverting data");
656 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");
657 PrintAndLog(" : data rawdemod ar 64 1 0 0 a = demod an ask tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors, and amp");
660 return ASKDemod(Cmd
, TRUE
, FALSE
, 0);
663 int AutoCorrelate(int window
, bool SaveGrph
, bool verbose
)
665 static int CorrelBuffer
[MAX_GRAPH_TRACE_LEN
];
666 size_t Correlation
= 0;
669 if (verbose
) PrintAndLog("performing %d correlations", GraphTraceLen
- window
);
670 for (int i
= 0; i
< GraphTraceLen
- window
; ++i
) {
672 for (int j
= 0; j
< window
; ++j
) {
673 sum
+= (GraphBuffer
[j
]*GraphBuffer
[i
+ j
]) / 256;
675 CorrelBuffer
[i
] = sum
;
676 if (sum
>= maxSum
-100 && sum
<= maxSum
+100){
678 Correlation
= i
-lastMax
;
680 if (sum
> maxSum
) maxSum
= sum
;
681 } else if (sum
> maxSum
){
687 //try again with wider margin
688 for (int i
= 0; i
< GraphTraceLen
- window
; i
++){
689 if (CorrelBuffer
[i
] >= maxSum
-(maxSum
*0.05) && CorrelBuffer
[i
] <= maxSum
+(maxSum
*0.05)){
691 Correlation
= i
-lastMax
;
693 //if (CorrelBuffer[i] > maxSum) maxSum = sum;
697 if (verbose
&& Correlation
> 0) PrintAndLog("Possible Correlation: %d samples",Correlation
);
700 GraphTraceLen
= GraphTraceLen
- window
;
701 memcpy(GraphBuffer
, CorrelBuffer
, GraphTraceLen
* sizeof (int));
702 RepaintGraphWindow();
707 int usage_data_autocorr(void)
710 PrintAndLog("Usage: data autocorr [window] [g]");
711 PrintAndLog("Options: ");
712 PrintAndLog(" h This help");
713 PrintAndLog(" [window] window length for correlation - default = 4000");
714 PrintAndLog(" g save back to GraphBuffer (overwrite)");
718 int CmdAutoCorr(const char *Cmd
)
720 char cmdp
= param_getchar(Cmd
, 0);
721 if (cmdp
== 'h' || cmdp
== 'H')
722 return usage_data_autocorr();
723 int window
= 4000; //set default
725 bool updateGrph
= FALSE
;
726 sscanf(Cmd
, "%i %c", &window
, &grph
);
728 if (window
>= GraphTraceLen
) {
729 PrintAndLog("window must be smaller than trace (%d samples)",
733 if (grph
== 'g') updateGrph
=TRUE
;
734 return AutoCorrelate(window
, updateGrph
, TRUE
);
737 int CmdBitsamples(const char *Cmd
)
742 GetFromBigBuf(got
,sizeof(got
),0);
743 WaitForResponse(CMD_ACK
,NULL
);
745 for (int j
= 0; j
< sizeof(got
); j
++) {
746 for (int k
= 0; k
< 8; k
++) {
747 if(got
[j
] & (1 << (7 - k
))) {
748 GraphBuffer
[cnt
++] = 1;
750 GraphBuffer
[cnt
++] = 0;
755 RepaintGraphWindow();
759 int CmdBuffClear(const char *Cmd
)
761 UsbCommand c
= {CMD_BUFF_CLEAR
};
767 int CmdDec(const char *Cmd
)
769 for (int i
= 0; i
< (GraphTraceLen
/ 2); ++i
)
770 GraphBuffer
[i
] = GraphBuffer
[i
* 2];
772 PrintAndLog("decimated by 2");
773 RepaintGraphWindow();
777 * Undecimate - I'd call it 'interpolate', but we'll save that
778 * name until someone does an actual interpolation command, not just
779 * blindly repeating samples
783 int CmdUndec(const char *Cmd
)
785 if(param_getchar(Cmd
, 0) == 'h')
787 PrintAndLog("Usage: data undec [factor]");
788 PrintAndLog("This function performs un-decimation, by repeating each sample N times");
789 PrintAndLog("Options: ");
790 PrintAndLog(" h This help");
791 PrintAndLog(" factor The number of times to repeat each sample.[default:2]");
792 PrintAndLog("Example: 'data undec 3'");
796 uint8_t factor
= param_get8ex(Cmd
, 0,2, 10);
797 //We have memory, don't we?
798 int swap
[MAX_GRAPH_TRACE_LEN
] = { 0 };
799 uint32_t g_index
= 0 ,s_index
= 0;
800 while(g_index
< GraphTraceLen
&& s_index
< MAX_GRAPH_TRACE_LEN
)
803 for(count
= 0; count
< factor
&& s_index
+count
< MAX_GRAPH_TRACE_LEN
; count
++)
804 swap
[s_index
+count
] = GraphBuffer
[g_index
];
808 memcpy(GraphBuffer
,swap
, s_index
* sizeof(int));
809 GraphTraceLen
= s_index
;
810 RepaintGraphWindow();
815 //shift graph zero up or down based on input + or -
816 int CmdGraphShiftZero(const char *Cmd
)
820 //set options from parameters entered with the command
821 sscanf(Cmd
, "%i", &shift
);
823 for(int i
= 0; i
<GraphTraceLen
; i
++){
824 shiftedVal
=GraphBuffer
[i
]+shift
;
827 else if (shiftedVal
<-127)
829 GraphBuffer
[i
]= shiftedVal
;
836 //use large jumps in read samples to identify edges of waves and then amplify that wave to max
837 //similar to dirtheshold, threshold commands
838 //takes a threshold length which is the measured length between two samples then determines an edge
839 int CmdAskEdgeDetect(const char *Cmd
)
842 sscanf(Cmd
, "%i", &thresLen
);
844 for(int i
= 1; i
<GraphTraceLen
; i
++){
845 if (GraphBuffer
[i
]-GraphBuffer
[i
-1]>=thresLen
) //large jump up
846 GraphBuffer
[i
-1] = 127;
847 else if(GraphBuffer
[i
]-GraphBuffer
[i
-1]<=-1*thresLen
) //large jump down
848 GraphBuffer
[i
-1] = -127;
850 RepaintGraphWindow();
854 /* Print our clock rate */
855 // uses data from graphbuffer
856 // adjusted to take char parameter for type of modulation to find the clock - by marshmellow.
857 int CmdDetectClockRate(const char *Cmd
)
859 char cmdp
= param_getchar(Cmd
, 0);
860 if (strlen(Cmd
) > 6 || strlen(Cmd
) == 0 || cmdp
== 'h' || cmdp
== 'H') {
861 PrintAndLog("Usage: data detectclock [modulation] <clock>");
862 PrintAndLog(" [modulation as char], specify the modulation type you want to detect the clock of");
863 PrintAndLog(" <clock> , specify the clock (optional - to get best start position only)");
864 PrintAndLog(" 'a' = ask, 'f' = fsk, 'n' = nrz/direct, 'p' = psk");
866 PrintAndLog(" sample: data detectclock a = detect the clock of an ask modulated wave in the GraphBuffer");
867 PrintAndLog(" data detectclock f = detect the clock of an fsk modulated wave in the GraphBuffer");
868 PrintAndLog(" data detectclock p = detect the clock of an psk modulated wave in the GraphBuffer");
869 PrintAndLog(" data detectclock n = detect the clock of an nrz/direct modulated wave in the GraphBuffer");
873 ans
= GetAskClock(Cmd
+1, true, false);
874 } else if (cmdp
== 'f'){
875 ans
= GetFskClock("", true, false);
876 } else if (cmdp
== 'n'){
877 ans
= GetNrzClock("", true, false);
878 } else if (cmdp
== 'p'){
879 ans
= GetPskClock("", true, false);
881 PrintAndLog ("Please specify a valid modulation to detect the clock of - see option h for help");
886 char *GetFSKType(uint8_t fchigh
, uint8_t fclow
, uint8_t invert
)
889 if (fchigh
==10 && fclow
==8){
894 } else if (fchigh
== 8 && fclow
== 5) {
906 //fsk raw demod and print binary
907 //takes 4 arguments - Clock, invert, fchigh, fclow
908 //defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a))
909 int FSKrawDemod(const char *Cmd
, bool verbose
)
911 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
918 //set options from parameters entered with the command
919 sscanf(Cmd
, "%i %i %i %i", &rfLen
, &invert
, &fchigh
, &fclow
);
921 if (strlen(Cmd
)>0 && strlen(Cmd
)<=2) {
923 invert
= 1; //if invert option only is used
928 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
929 size_t BitLen
= getFromGraphBuf(BitStream
);
930 if (BitLen
==0) return 0;
931 //get field clock lengths
933 if (fchigh
==0 || fclow
== 0){
934 fcs
= countFC(BitStream
, BitLen
, 1);
939 fchigh
= (fcs
>> 8) & 0xFF;
943 //get bit clock length
945 rfLen
= detectFSKClk(BitStream
, BitLen
, fchigh
, fclow
);
946 if (rfLen
== 0) rfLen
= 50;
948 int size
= fskdemod(BitStream
,BitLen
,(uint8_t)rfLen
,(uint8_t)invert
,(uint8_t)fchigh
,(uint8_t)fclow
);
950 setDemodBuf(BitStream
,size
,0);
952 // Now output the bitstream to the scrollback by line of 16 bits
953 if (verbose
|| g_debugMode
) {
954 PrintAndLog("\nUsing Clock:%d, invert:%d, fchigh:%d, fclow:%d", rfLen
, invert
, fchigh
, fclow
);
955 PrintAndLog("%s decoded bitstream:",GetFSKType(fchigh
,fclow
,invert
));
961 if (g_debugMode
) PrintAndLog("no FSK data found");
967 //fsk raw demod and print binary
968 //takes 4 arguments - Clock, invert, fchigh, fclow
969 //defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a))
970 int CmdFSKrawdemod(const char *Cmd
)
972 char cmdp
= param_getchar(Cmd
, 0);
973 if (strlen(Cmd
) > 10 || cmdp
== 'h' || cmdp
== 'H') {
974 PrintAndLog("Usage: data rawdemod fs [clock] <invert> [fchigh] [fclow]");
975 PrintAndLog(" [set clock as integer] optional, omit for autodetect.");
976 PrintAndLog(" <invert>, 1 for invert output, can be used even if the clock is omitted");
977 PrintAndLog(" [fchigh], larger field clock length, omit for autodetect");
978 PrintAndLog(" [fclow], small field clock length, omit for autodetect");
980 PrintAndLog(" sample: data rawdemod fs = demod an fsk tag from GraphBuffer using autodetect");
981 PrintAndLog(" : data rawdemod fs 32 = demod an fsk tag from GraphBuffer using a clock of RF/32, autodetect fc");
982 PrintAndLog(" : data rawdemod fs 1 = demod an fsk tag from GraphBuffer using autodetect, invert output");
983 PrintAndLog(" : data rawdemod fs 32 1 = demod an fsk tag from GraphBuffer using a clock of RF/32, invert output, autodetect fc");
984 PrintAndLog(" : data rawdemod fs 64 0 8 5 = demod an fsk1 RF/64 tag from GraphBuffer");
985 PrintAndLog(" : data rawdemod fs 50 0 10 8 = demod an fsk2 RF/50 tag from GraphBuffer");
986 PrintAndLog(" : data rawdemod fs 50 1 10 8 = demod an fsk2a RF/50 tag from GraphBuffer");
989 return FSKrawDemod(Cmd
, TRUE
);
992 //by marshmellow (based on existing demod + holiman's refactor)
993 //HID Prox demod - FSK RF/50 with preamble of 00011101 (then manchester encoded)
994 //print full HID Prox ID and some bit format details if found
995 int CmdFSKdemodHID(const char *Cmd
)
997 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
998 uint32_t hi2
=0, hi
=0, lo
=0;
1000 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
1001 size_t BitLen
= getFromGraphBuf(BitStream
);
1002 if (BitLen
==0) return 0;
1003 //get binary from fsk wave
1004 int idx
= HIDdemodFSK(BitStream
,&BitLen
,&hi2
,&hi
,&lo
);
1008 PrintAndLog("DEBUG: Just Noise Detected");
1009 } else if (idx
== -2) {
1010 PrintAndLog("DEBUG: Error demoding fsk");
1011 } else if (idx
== -3) {
1012 PrintAndLog("DEBUG: Preamble not found");
1013 } else if (idx
== -4) {
1014 PrintAndLog("DEBUG: Error in Manchester data, SIZE: %d", BitLen
);
1016 PrintAndLog("DEBUG: Error demoding fsk %d", idx
);
1021 if (hi2
==0 && hi
==0 && lo
==0) {
1022 if (g_debugMode
) PrintAndLog("DEBUG: Error - no values found");
1025 if (hi2
!= 0){ //extra large HID tags
1026 PrintAndLog("HID Prox TAG ID: %x%08x%08x (%d)",
1027 (unsigned int) hi2
, (unsigned int) hi
, (unsigned int) lo
, (unsigned int) (lo
>>1) & 0xFFFF);
1029 else { //standard HID tags <38 bits
1032 uint32_t cardnum
= 0;
1033 if (((hi
>>5)&1)==1){//if bit 38 is set then < 37 bit format is used
1035 lo2
=(((hi
& 31) << 12) | (lo
>>20)); //get bits 21-37 to check for format len bit
1037 while(lo2
>1){ //find last bit set to 1 (format len bit)
1045 cardnum
= (lo
>>1)&0xFFFF;
1049 cardnum
= (lo
>>1)&0xFFFF;
1050 fc
= ((hi
&1)<<15)|(lo
>>17);
1053 cardnum
= (lo
>>1)&0xFFFFF;
1054 fc
= ((hi
&1)<<11)|(lo
>>21);
1057 else { //if bit 38 is not set then 37 bit format is used
1062 cardnum
= (lo
>>1)&0x7FFFF;
1063 fc
= ((hi
&0xF)<<12)|(lo
>>20);
1066 PrintAndLog("HID Prox TAG ID: %x%08x (%d) - Format Len: %dbit - FC: %d - Card: %d",
1067 (unsigned int) hi
, (unsigned int) lo
, (unsigned int) (lo
>>1) & 0xFFFF,
1068 (unsigned int) fmtLen
, (unsigned int) fc
, (unsigned int) cardnum
);
1070 setDemodBuf(BitStream
,BitLen
,idx
);
1072 PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx
, BitLen
);
1079 //Paradox Prox demod - FSK RF/50 with preamble of 00001111 (then manchester encoded)
1080 //print full Paradox Prox ID and some bit format details if found
1081 int CmdFSKdemodParadox(const char *Cmd
)
1083 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1084 uint32_t hi2
=0, hi
=0, lo
=0;
1086 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
1087 size_t BitLen
= getFromGraphBuf(BitStream
);
1088 if (BitLen
==0) return 0;
1089 //get binary from fsk wave
1090 int idx
= ParadoxdemodFSK(BitStream
,&BitLen
,&hi2
,&hi
,&lo
);
1094 PrintAndLog("DEBUG: Just Noise Detected");
1095 } else if (idx
== -2) {
1096 PrintAndLog("DEBUG: Error demoding fsk");
1097 } else if (idx
== -3) {
1098 PrintAndLog("DEBUG: Preamble not found");
1099 } else if (idx
== -4) {
1100 PrintAndLog("DEBUG: Error in Manchester data");
1102 PrintAndLog("DEBUG: Error demoding fsk %d", idx
);
1107 if (hi2
==0 && hi
==0 && lo
==0){
1108 if (g_debugMode
) PrintAndLog("DEBUG: Error - no value found");
1111 uint32_t fc
= ((hi
& 0x3)<<6) | (lo
>>26);
1112 uint32_t cardnum
= (lo
>>10)&0xFFFF;
1113 uint32_t rawLo
= bytebits_to_byte(BitStream
+idx
+64,32);
1114 uint32_t rawHi
= bytebits_to_byte(BitStream
+idx
+32,32);
1115 uint32_t rawHi2
= bytebits_to_byte(BitStream
+idx
,32);
1117 PrintAndLog("Paradox TAG ID: %x%08x - FC: %d - Card: %d - Checksum: %02x - RAW: %08x%08x%08x",
1118 hi
>>10, (hi
& 0x3)<<26 | (lo
>>10), fc
, cardnum
, (lo
>>2) & 0xFF, rawHi2
, rawHi
, rawLo
);
1119 setDemodBuf(BitStream
,BitLen
,idx
);
1121 PrintAndLog("DEBUG: idx: %d, len: %d, Printing Demod Buffer:", idx
, BitLen
);
1128 //IO-Prox demod - FSK RF/64 with preamble of 000000001
1129 //print ioprox ID and some format details
1130 int CmdFSKdemodIO(const char *Cmd
)
1132 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1135 //something in graphbuffer?
1136 if (GraphTraceLen
< 65) {
1137 if (g_debugMode
)PrintAndLog("DEBUG: not enough samples in GraphBuffer");
1140 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
1141 size_t BitLen
= getFromGraphBuf(BitStream
);
1142 if (BitLen
==0) return 0;
1144 //get binary from fsk wave
1145 idx
= IOdemodFSK(BitStream
,BitLen
);
1149 PrintAndLog("DEBUG: Just Noise Detected");
1150 } else if (idx
== -2) {
1151 PrintAndLog("DEBUG: not enough samples");
1152 } else if (idx
== -3) {
1153 PrintAndLog("DEBUG: error during fskdemod");
1154 } else if (idx
== -4) {
1155 PrintAndLog("DEBUG: Preamble not found");
1156 } else if (idx
== -5) {
1157 PrintAndLog("DEBUG: Separator bits not found");
1159 PrintAndLog("DEBUG: Error demoding fsk %d", idx
);
1166 PrintAndLog("DEBUG: IO Prox Data not found - FSK Bits: %d",BitLen
);
1167 if (BitLen
> 92) PrintAndLog("%s", sprint_bin_break(BitStream
,92,16));
1172 //0 10 20 30 40 50 60
1174 //01234567 8 90123456 7 89012345 6 78901234 5 67890123 4 56789012 3 45678901 23
1175 //-----------------------------------------------------------------------------
1176 //00000000 0 11110000 1 facility 1 version* 1 code*one 1 code*two 1 ???????? 11
1178 //XSF(version)facility:codeone+codetwo (raw)
1180 if (idx
+64>BitLen
) {
1181 if (g_debugMode
) PrintAndLog("not enough bits found - bitlen: %d",BitLen
);
1184 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]);
1185 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]);
1186 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]);
1187 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]);
1188 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]);
1189 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]);
1190 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]);
1192 uint32_t code
= bytebits_to_byte(BitStream
+idx
,32);
1193 uint32_t code2
= bytebits_to_byte(BitStream
+idx
+32,32);
1194 uint8_t version
= bytebits_to_byte(BitStream
+idx
+27,8); //14,4
1195 uint8_t facilitycode
= bytebits_to_byte(BitStream
+idx
+18,8) ;
1196 uint16_t number
= (bytebits_to_byte(BitStream
+idx
+36,8)<<8)|(bytebits_to_byte(BitStream
+idx
+45,8)); //36,9
1197 uint8_t crc
= bytebits_to_byte(BitStream
+idx
+54,8);
1198 uint16_t calccrc
= 0;
1200 for (uint8_t i
=1; i
<6; ++i
){
1201 calccrc
+= bytebits_to_byte(BitStream
+idx
+9*i
,8);
1204 calccrc
= 0xff - calccrc
;
1206 char *crcStr
= (crc
== calccrc
) ? "crc ok": "!crc";
1208 PrintAndLog("IO Prox XSF(%02d)%02x:%05d (%08x%08x) [%02x %s]",version
,facilitycode
,number
,code
,code2
, crc
, crcStr
);
1209 setDemodBuf(BitStream
,64,idx
);
1211 PrintAndLog("DEBUG: idx: %d, Len: %d, Printing demod buffer:",idx
,64);
1218 //AWID Prox demod - FSK RF/50 with preamble of 00000001 (always a 96 bit data stream)
1219 //print full AWID Prox ID and some bit format details if found
1220 int CmdFSKdemodAWID(const char *Cmd
)
1224 //sscanf(Cmd, "%i", &verbose);
1226 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1227 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
1228 size_t size
= getFromGraphBuf(BitStream
);
1229 if (size
==0) return 0;
1231 //get binary from fsk wave
1232 int idx
= AWIDdemodFSK(BitStream
, &size
);
1234 if (g_debugMode
==1){
1236 PrintAndLog("DEBUG: Error - not enough samples");
1238 PrintAndLog("DEBUG: Error - only noise found");
1240 PrintAndLog("DEBUG: Error - problem during FSK demod");
1242 PrintAndLog("DEBUG: Error - AWID preamble not found");
1244 PrintAndLog("DEBUG: Error - Size not correct: %d", size
);
1246 PrintAndLog("DEBUG: Error %d",idx
);
1252 // 0 10 20 30 40 50 60
1254 // 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
1255 // -----------------------------------------------------------------------------
1256 // 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
1257 // 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
1258 // |---26 bit---| |-----117----||-------------142-------------|
1259 // b = format bit len, o = odd parity of last 3 bits
1260 // f = facility code, c = card number
1261 // w = wiegand parity
1262 // (26 bit format shown)
1264 //get raw ID before removing parities
1265 uint32_t rawLo
= bytebits_to_byte(BitStream
+idx
+64,32);
1266 uint32_t rawHi
= bytebits_to_byte(BitStream
+idx
+32,32);
1267 uint32_t rawHi2
= bytebits_to_byte(BitStream
+idx
,32);
1268 setDemodBuf(BitStream
,96,idx
);
1270 size
= removeParity(BitStream
, idx
+8, 4, 1, 88);
1272 if (g_debugMode
==1) PrintAndLog("DEBUG: Error - at parity check-tag size does not match AWID format");
1275 // ok valid card found!
1278 // 0 10 20 30 40 50 60
1280 // 01234567 8 90123456 7890123456789012 3 456789012345678901234567890123456
1281 // -----------------------------------------------------------------------------
1282 // 00011010 1 01110101 0000000010001110 1 000000000000000000000000000000000
1283 // bbbbbbbb w ffffffff cccccccccccccccc w xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
1284 // |26 bit| |-117--| |-----142------|
1285 // b = format bit len, o = odd parity of last 3 bits
1286 // f = facility code, c = card number
1287 // w = wiegand parity
1288 // (26 bit format shown)
1291 uint32_t cardnum
= 0;
1294 uint8_t fmtLen
= bytebits_to_byte(BitStream
,8);
1296 fc
= bytebits_to_byte(BitStream
+9, 8);
1297 cardnum
= bytebits_to_byte(BitStream
+17, 16);
1298 code1
= bytebits_to_byte(BitStream
+8,fmtLen
);
1299 PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %08x%08x%08x", fmtLen
, fc
, cardnum
, code1
, rawHi2
, rawHi
, rawLo
);
1301 cardnum
= bytebits_to_byte(BitStream
+8+(fmtLen
-17), 16);
1303 code1
= bytebits_to_byte(BitStream
+8,fmtLen
-32);
1304 code2
= bytebits_to_byte(BitStream
+8+(fmtLen
-32),32);
1305 PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen
, cardnum
, code1
, code2
, rawHi2
, rawHi
, rawLo
);
1307 code1
= bytebits_to_byte(BitStream
+8,fmtLen
);
1308 PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x, Raw: %08x%08x%08x", fmtLen
, cardnum
, code1
, rawHi2
, rawHi
, rawLo
);
1312 PrintAndLog("DEBUG: idx: %d, Len: %d Printing Demod Buffer:", idx
, 96);
1315 //todo - convert hi2, hi, lo to demodbuffer for future sim/clone commands
1320 //Pyramid Prox demod - FSK RF/50 with preamble of 0000000000000001 (always a 128 bit data stream)
1321 //print full Farpointe Data/Pyramid Prox ID and some bit format details if found
1322 int CmdFSKdemodPyramid(const char *Cmd
)
1324 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1325 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
1326 size_t size
= getFromGraphBuf(BitStream
);
1327 if (size
==0) return 0;
1329 //get binary from fsk wave
1330 int idx
= PyramiddemodFSK(BitStream
, &size
);
1332 if (g_debugMode
==1){
1334 PrintAndLog("DEBUG: Error - not enough samples");
1336 PrintAndLog("DEBUG: Error - only noise found");
1338 PrintAndLog("DEBUG: Error - problem during FSK demod");
1340 PrintAndLog("DEBUG: Error - Size not correct: %d", size
);
1342 PrintAndLog("DEBUG: Error - Pyramid preamble not found");
1344 PrintAndLog("DEBUG: Error - idx: %d",idx
);
1349 // 0 10 20 30 40 50 60
1351 // 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3
1352 // -----------------------------------------------------------------------------
1353 // 0000000 0 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1
1354 // premable xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o
1356 // 64 70 80 90 100 110 120
1358 // 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7
1359 // -----------------------------------------------------------------------------
1360 // 0000000 1 0000000 1 0000000 1 0110111 0 0011000 1 0000001 0 0001100 1 1001010 0
1361 // xxxxxxx o xxxxxxx o xxxxxxx o xswffff o ffffccc o ccccccc o ccccccw o ppppppp o
1362 // |---115---||---------71---------|
1363 // s = format start bit, o = odd parity of last 7 bits
1364 // f = facility code, c = card number
1365 // w = wiegand parity, x = extra space for other formats
1366 // p = unknown checksum
1367 // (26 bit format shown)
1369 //get bytes for checksum calc
1370 uint8_t checksum
= bytebits_to_byte(BitStream
+ idx
+ 120, 8);
1371 uint8_t csBuff
[14] = {0x00};
1372 for (uint8_t i
= 0; i
< 13; i
++){
1373 csBuff
[i
] = bytebits_to_byte(BitStream
+ idx
+ 16 + (i
*8), 8);
1375 //check checksum calc
1376 //checksum calc thanks to ICEMAN!!
1377 uint32_t checkCS
= CRC8Maxim(csBuff
,13);
1379 //get raw ID before removing parities
1380 uint32_t rawLo
= bytebits_to_byte(BitStream
+idx
+96,32);
1381 uint32_t rawHi
= bytebits_to_byte(BitStream
+idx
+64,32);
1382 uint32_t rawHi2
= bytebits_to_byte(BitStream
+idx
+32,32);
1383 uint32_t rawHi3
= bytebits_to_byte(BitStream
+idx
,32);
1384 setDemodBuf(BitStream
,128,idx
);
1386 size
= removeParity(BitStream
, idx
+8, 8, 1, 120);
1389 PrintAndLog("DEBUG: Error at parity check - tag size does not match Pyramid format, SIZE: %d, IDX: %d, hi3: %x",size
, idx
, rawHi3
);
1393 // ok valid card found!
1396 // 0 10 20 30 40 50 60 70
1398 // 01234567890123456789012345678901234567890123456789012345678901234567890
1399 // -----------------------------------------------------------------------
1400 // 00000000000000000000000000000000000000000000000000000000000000000000000
1401 // xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
1405 // 1 2 34567890 1234567890123456 7 8901234
1406 // ---------------------------------------
1407 // 1 1 01110011 0000000001000110 0 1001010
1408 // s w ffffffff cccccccccccccccc w ppppppp
1409 // |--115-| |------71------|
1410 // s = format start bit, o = odd parity of last 7 bits
1411 // f = facility code, c = card number
1412 // w = wiegand parity, x = extra space for other formats
1413 // p = unknown checksum
1414 // (26 bit format shown)
1416 //find start bit to get fmtLen
1418 for (j
=0; j
<size
; j
++){
1419 if(BitStream
[j
]) break;
1421 uint8_t fmtLen
= size
-j
-8;
1423 uint32_t cardnum
= 0;
1425 //uint32_t code2 = 0;
1427 fc
= bytebits_to_byte(BitStream
+73, 8);
1428 cardnum
= bytebits_to_byte(BitStream
+81, 16);
1429 code1
= bytebits_to_byte(BitStream
+72,fmtLen
);
1430 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
);
1431 } else if (fmtLen
==45){
1432 fmtLen
=42; //end = 10 bits not 7 like 26 bit fmt
1433 fc
= bytebits_to_byte(BitStream
+53, 10);
1434 cardnum
= bytebits_to_byte(BitStream
+63, 32);
1435 PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Raw: %08x%08x%08x%08x", fmtLen
, fc
, cardnum
, rawHi3
, rawHi2
, rawHi
, rawLo
);
1437 cardnum
= bytebits_to_byte(BitStream
+81, 16);
1439 //code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen-32);
1440 //code2 = bytebits_to_byte(BitStream+(size-32),32);
1441 PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %08x%08x%08x%08x", fmtLen
, cardnum
, rawHi3
, rawHi2
, rawHi
, rawLo
);
1443 //code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen);
1444 PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %08x%08x%08x%08x", fmtLen
, cardnum
, rawHi3
, rawHi2
, rawHi
, rawLo
);
1447 if (checksum
== checkCS
)
1448 PrintAndLog("Checksum %02x passed", checksum
);
1450 PrintAndLog("Checksum %02x failed - should have been %02x", checksum
, checkCS
);
1453 PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx
, 128);
1459 // FDX-B ISO11784/85 demod (aka animal tag) BIPHASE, inverted, rf/32, with preamble of 00000000001 (128bits)
1460 // 8 databits + 1 parity (1)
1462 // NATIONAL CODE, ICAR database
1463 // COUNTRY CODE (ISO3166) or http://cms.abvma.ca/uploads/ManufacturersISOsandCountryCodes.pdf
1464 // FLAG (animal/non-animal)
1471 16 ccitt CRC chksum over 64bit ID CODE.
1474 -- sample: 985121004515220 [ 37FF65B88EF94 ]
1476 int CmdFDXBdemodBI(const char *Cmd
){
1482 uint8_t BitStream
[MAX_DEMOD_BUF_LEN
];
1483 size_t size
= getFromGraphBuf(BitStream
);
1485 errCnt
= askdemod(BitStream
, &size
, &clk
, &invert
, maxErr
, 0, 0);
1486 if ( errCnt
< 0 || errCnt
> maxErr
) {
1487 if (g_debugMode
) PrintAndLog("DEBUG: no data or error found %d, clock: %d", errCnt
, clk
);
1491 errCnt
= BiphaseRawDecode(BitStream
, &size
, maxErr
, 1);
1492 if (errCnt
< 0 || errCnt
> maxErr
) {
1493 if (g_debugMode
) PrintAndLog("Error BiphaseRawDecode: %d", errCnt
);
1497 int preambleIndex
= FDXBdemodBI(BitStream
, &size
);
1498 if (preambleIndex
< 0){
1499 if (g_debugMode
) PrintAndLog("Error FDXBDemod , no startmarker found :: %d",preambleIndex
);
1503 setDemodBuf(BitStream
, 128, preambleIndex
);
1505 // remove marker bits (1's every 9th digit after preamble) (pType = 2)
1506 size
= removeParity(BitStream
, preambleIndex
+ 11, 9, 2, 117);
1507 if ( size
!= 104 ) {
1508 if (g_debugMode
) PrintAndLog("Error removeParity:: %d", size
);
1512 char *bin
= sprint_bin_break(BitStream
,size
,16);
1513 PrintAndLog("DEBUG BinStream:\n%s",bin
);
1515 PrintAndLog("\nFDX-B / ISO 11784/5 Animal Tag ID Found:");
1516 if (g_debugMode
) PrintAndLog("Start marker %d; Size %d", preambleIndex
, size
);
1519 uint64_t NationalCode
= ((uint64_t)(bytebits_to_byteLSBF(BitStream
+32,6)) << 32) | bytebits_to_byteLSBF(BitStream
,32);
1520 uint32_t countryCode
= bytebits_to_byteLSBF(BitStream
+38,10);
1521 uint8_t dataBlockBit
= BitStream
[48];
1522 uint32_t reservedCode
= bytebits_to_byteLSBF(BitStream
+49,14);
1523 uint8_t animalBit
= BitStream
[63];
1524 uint32_t crc16
= bytebits_to_byteLSBF(BitStream
+64,16);
1525 uint32_t extended
= bytebits_to_byteLSBF(BitStream
+80,24);
1527 uint64_t rawid
= ((uint64_t)bytebits_to_byte(BitStream
,32)<<32) | bytebits_to_byte(BitStream
+32,32);
1529 num_to_bytes(rawid
, 8, raw
);
1531 if (g_debugMode
) PrintAndLog("Raw ID Hex: %s", sprint_hex(raw
,8));
1533 uint16_t calcCrc
= crc16_ccitt_kermit(raw
, 8);
1534 PrintAndLog("Animal ID: %04u-%012llu", countryCode
, NationalCode
);
1535 PrintAndLog("National Code: %012llu", NationalCode
);
1536 PrintAndLog("CountryCode: %04u", countryCode
);
1537 PrintAndLog("Extended Data: %s", dataBlockBit
? "True" : "False");
1538 PrintAndLog("reserved Code: %u", reservedCode
);
1539 PrintAndLog("Animal Tag: %s", animalBit
? "True" : "False");
1540 PrintAndLog("CRC: 0x%04X - [%04X] - %s", crc16
, calcCrc
, (calcCrc
== crc16
) ? "Passed" : "Failed");
1541 PrintAndLog("Extended: 0x%X\n", extended
);
1548 //attempt to psk1 demod graph buffer
1549 int PSKDemod(const char *Cmd
, bool verbose
)
1554 sscanf(Cmd
, "%i %i %i", &clk
, &invert
, &maxErr
);
1559 if (invert
!= 0 && invert
!= 1) {
1560 if (g_debugMode
|| verbose
) PrintAndLog("Invalid argument: %s", Cmd
);
1563 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
1564 size_t BitLen
= getFromGraphBuf(BitStream
);
1565 if (BitLen
==0) return 0;
1566 uint8_t carrier
=countFC(BitStream
, BitLen
, 0);
1567 if (carrier
!=2 && carrier
!=4 && carrier
!=8){
1572 errCnt
= pskRawDemod(BitStream
, &BitLen
, &clk
, &invert
);
1573 if (errCnt
> maxErr
){
1574 if (g_debugMode
|| verbose
) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk
,invert
,BitLen
,errCnt
);
1577 if (errCnt
<0|| BitLen
<16){ //throw away static - allow 1 and -1 (in case of threshold command first)
1578 if (g_debugMode
|| verbose
) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk
,invert
,BitLen
,errCnt
);
1581 if (verbose
|| g_debugMode
){
1582 PrintAndLog("\nUsing Clock:%d, invert:%d, Bits Found:%d",clk
,invert
,BitLen
);
1584 PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt
);
1587 //prime demod buffer for output
1588 setDemodBuf(BitStream
,BitLen
,0);
1592 // Indala 26 bit decode
1594 // optional arguments - same as CmdpskNRZrawDemod (clock & invert)
1595 int CmdIndalaDecode(const char *Cmd
)
1599 ans
= PSKDemod(Cmd
, 0);
1600 } else{ //default to RF/32
1601 ans
= PSKDemod("32", 0);
1606 PrintAndLog("Error1: %d",ans
);
1610 ans
= indala26decode(DemodBuffer
, &DemodBufferLen
, &invert
);
1613 PrintAndLog("Error2: %d",ans
);
1616 char showbits
[251]={0x00};
1619 PrintAndLog("Had to invert bits");
1621 //convert UID to HEX
1622 uint32_t uid1
, uid2
, uid3
, uid4
, uid5
, uid6
, uid7
;
1626 PrintAndLog("BitLen: %d",DemodBufferLen
);
1627 if (DemodBufferLen
==64){
1628 for( idx
=0; idx
<64; idx
++) {
1629 uid1
=(uid1
<<1)|(uid2
>>31);
1630 if (DemodBuffer
[idx
] == 0) {
1639 PrintAndLog("Indala UID=%s (%x%08x)", showbits
, uid1
, uid2
);
1647 for( idx
=0; idx
<DemodBufferLen
; idx
++) {
1648 uid1
=(uid1
<<1)|(uid2
>>31);
1649 uid2
=(uid2
<<1)|(uid3
>>31);
1650 uid3
=(uid3
<<1)|(uid4
>>31);
1651 uid4
=(uid4
<<1)|(uid5
>>31);
1652 uid5
=(uid5
<<1)|(uid6
>>31);
1653 uid6
=(uid6
<<1)|(uid7
>>31);
1654 if (DemodBuffer
[idx
] == 0) {
1664 PrintAndLog("Indala UID=%s (%x%08x%08x%08x%08x%08x%08x)", showbits
, uid1
, uid2
, uid3
, uid4
, uid5
, uid6
, uid7
);
1667 PrintAndLog("DEBUG: printing demodbuffer:");
1673 int CmdPSKNexWatch(const char *Cmd
)
1675 if (!PSKDemod("", false)) return 0;
1676 uint8_t preamble
[28] = {0,0,0,0,0,1,0,1,0,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
1677 size_t startIdx
= 0, size
= DemodBufferLen
;
1678 bool invert
= false;
1679 if (!preambleSearch(DemodBuffer
, preamble
, sizeof(preamble
), &size
, &startIdx
)){
1680 // if didn't find preamble try again inverting
1681 if (!PSKDemod("1", false)) return 0;
1682 size
= DemodBufferLen
;
1683 if (!preambleSearch(DemodBuffer
, preamble
, sizeof(preamble
), &size
, &startIdx
)) return 0;
1686 if (size
!= 128) return 0;
1687 setDemodBuf(DemodBuffer
, size
, startIdx
+4);
1688 startIdx
= 8+32; //4 = extra i added, 8 = preamble, 32 = reserved bits (always 0)
1691 for (uint8_t wordIdx
=0; wordIdx
<4; wordIdx
++){
1692 for (uint8_t idx
=0; idx
<8; idx
++){
1693 ID
= (ID
<< 1) | DemodBuffer
[startIdx
+wordIdx
+(idx
*4)];
1696 //parity check (TBD)
1698 //checksum check (TBD)
1701 PrintAndLog("NexWatch ID: %d", ID
);
1703 PrintAndLog("Had to Invert - probably NexKey");
1704 for (uint8_t idx
=0; idx
<size
; idx
++)
1705 DemodBuffer
[idx
] ^= 1;
1708 CmdPrintDemodBuff("x");
1713 // takes 3 arguments - clock, invert, maxErr as integers
1714 // attempts to demodulate nrz only
1715 // prints binary found and saves in demodbuffer for further commands
1716 int NRZrawDemod(const char *Cmd
, bool verbose
)
1721 sscanf(Cmd
, "%i %i %i", &clk
, &invert
, &maxErr
);
1726 if (invert
!= 0 && invert
!= 1) {
1727 PrintAndLog("Invalid argument: %s", Cmd
);
1730 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
1731 size_t BitLen
= getFromGraphBuf(BitStream
);
1732 if (BitLen
==0) return 0;
1734 errCnt
= nrzRawDemod(BitStream
, &BitLen
, &clk
, &invert
, maxErr
);
1735 if (errCnt
> maxErr
){
1736 if (g_debugMode
) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk
,invert
,BitLen
,errCnt
);
1739 if (errCnt
<0 || BitLen
<16){ //throw away static - allow 1 and -1 (in case of threshold command first)
1740 if (g_debugMode
) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk
,invert
,BitLen
,errCnt
);
1743 if (verbose
|| g_debugMode
) PrintAndLog("Tried NRZ Demod using Clock: %d - invert: %d - Bits Found: %d",clk
,invert
,BitLen
);
1744 //prime demod buffer for output
1745 setDemodBuf(BitStream
,BitLen
,0);
1747 if (errCnt
>0 && (verbose
|| g_debugMode
)) PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt
);
1748 if (verbose
|| g_debugMode
) {
1749 PrintAndLog("NRZ demoded bitstream:");
1750 // Now output the bitstream to the scrollback by line of 16 bits
1756 int CmdNRZrawDemod(const char *Cmd
)
1758 char cmdp
= param_getchar(Cmd
, 0);
1759 if (strlen(Cmd
) > 10 || cmdp
== 'h' || cmdp
== 'H') {
1760 PrintAndLog("Usage: data rawdemod nr [clock] <0|1> [maxError]");
1761 PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
1762 PrintAndLog(" <invert>, 1 for invert output");
1763 PrintAndLog(" [set maximum allowed errors], default = 100.");
1765 PrintAndLog(" sample: data rawdemod nr = demod a nrz/direct tag from GraphBuffer");
1766 PrintAndLog(" : data rawdemod nr 32 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32");
1767 PrintAndLog(" : data rawdemod nr 32 1 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32 and inverting data");
1768 PrintAndLog(" : data rawdemod nr 1 = demod a nrz/direct tag from GraphBuffer while inverting data");
1769 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");
1772 return NRZrawDemod(Cmd
, TRUE
);
1776 // takes 3 arguments - clock, invert, maxErr as integers
1777 // attempts to demodulate psk only
1778 // prints binary found and saves in demodbuffer for further commands
1779 int CmdPSK1rawDemod(const char *Cmd
)
1782 char cmdp
= param_getchar(Cmd
, 0);
1783 if (strlen(Cmd
) > 10 || cmdp
== 'h' || cmdp
== 'H') {
1784 PrintAndLog("Usage: data rawdemod p1 [clock] <0|1> [maxError]");
1785 PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
1786 PrintAndLog(" <invert>, 1 for invert output");
1787 PrintAndLog(" [set maximum allowed errors], default = 100.");
1789 PrintAndLog(" sample: data rawdemod p1 = demod a psk1 tag from GraphBuffer");
1790 PrintAndLog(" : data rawdemod p1 32 = demod a psk1 tag from GraphBuffer using a clock of RF/32");
1791 PrintAndLog(" : data rawdemod p1 32 1 = demod a psk1 tag from GraphBuffer using a clock of RF/32 and inverting data");
1792 PrintAndLog(" : data rawdemod p1 1 = demod a psk1 tag from GraphBuffer while inverting data");
1793 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");
1796 ans
= PSKDemod(Cmd
, TRUE
);
1799 if (g_debugMode
) PrintAndLog("Error demoding: %d",ans
);
1803 PrintAndLog("PSK1 demoded bitstream:");
1804 // Now output the bitstream to the scrollback by line of 16 bits
1810 // takes same args as cmdpsk1rawdemod
1811 int CmdPSK2rawDemod(const char *Cmd
)
1814 char cmdp
= param_getchar(Cmd
, 0);
1815 if (strlen(Cmd
) > 10 || cmdp
== 'h' || cmdp
== 'H') {
1816 PrintAndLog("Usage: data rawdemod p2 [clock] <0|1> [maxError]");
1817 PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
1818 PrintAndLog(" <invert>, 1 for invert output");
1819 PrintAndLog(" [set maximum allowed errors], default = 100.");
1821 PrintAndLog(" sample: data rawdemod p2 = demod a psk2 tag from GraphBuffer, autodetect clock");
1822 PrintAndLog(" : data rawdemod p2 32 = demod a psk2 tag from GraphBuffer using a clock of RF/32");
1823 PrintAndLog(" : data rawdemod p2 32 1 = demod a psk2 tag from GraphBuffer using a clock of RF/32 and inverting output");
1824 PrintAndLog(" : data rawdemod p2 1 = demod a psk2 tag from GraphBuffer, autodetect clock and invert output");
1825 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");
1828 ans
=PSKDemod(Cmd
, TRUE
);
1830 if (g_debugMode
) PrintAndLog("Error demoding: %d",ans
);
1833 psk1TOpsk2(DemodBuffer
, DemodBufferLen
);
1834 PrintAndLog("PSK2 demoded bitstream:");
1835 // Now output the bitstream to the scrollback by line of 16 bits
1840 // by marshmellow - combines all raw demod functions into one menu command
1841 int CmdRawDemod(const char *Cmd
)
1843 char cmdp
= Cmd
[0]; //param_getchar(Cmd, 0);
1845 if (strlen(Cmd
) > 20 || cmdp
== 'h' || cmdp
== 'H' || strlen(Cmd
)<2) {
1846 PrintAndLog("Usage: data rawdemod [modulation] <help>|<options>");
1847 PrintAndLog(" [modulation] as 2 char, 'ab' for ask/biphase, 'am' for ask/manchester, 'ar' for ask/raw, 'fs' for fsk, ...");
1848 PrintAndLog(" 'nr' for nrz/direct, 'p1' for psk1, 'p2' for psk2");
1849 PrintAndLog(" <help> as 'h', prints the help for the specific modulation");
1850 PrintAndLog(" <options> see specific modulation help for optional parameters");
1852 PrintAndLog(" sample: data rawdemod fs h = print help specific to fsk demod");
1853 PrintAndLog(" : data rawdemod fs = demod GraphBuffer using: fsk - autodetect");
1854 PrintAndLog(" : data rawdemod ab = demod GraphBuffer using: ask/biphase - autodetect");
1855 PrintAndLog(" : data rawdemod am = demod GraphBuffer using: ask/manchester - autodetect");
1856 PrintAndLog(" : data rawdemod ar = demod GraphBuffer using: ask/raw - autodetect");
1857 PrintAndLog(" : data rawdemod nr = demod GraphBuffer using: nrz/direct - autodetect");
1858 PrintAndLog(" : data rawdemod p1 = demod GraphBuffer using: psk1 - autodetect");
1859 PrintAndLog(" : data rawdemod p2 = demod GraphBuffer using: psk2 - autodetect");
1862 char cmdp2
= Cmd
[1];
1864 if (cmdp
== 'f' && cmdp2
== 's'){
1865 ans
= CmdFSKrawdemod(Cmd
+2);
1866 } else if(cmdp
== 'a' && cmdp2
== 'b'){
1867 ans
= Cmdaskbiphdemod(Cmd
+2);
1868 } else if(cmdp
== 'a' && cmdp2
== 'm'){
1869 ans
= Cmdaskmandemod(Cmd
+2);
1870 } else if(cmdp
== 'a' && cmdp2
== 'r'){
1871 ans
= Cmdaskrawdemod(Cmd
+2);
1872 } else if(cmdp
== 'n' && cmdp2
== 'r'){
1873 ans
= CmdNRZrawDemod(Cmd
+2);
1874 } else if(cmdp
== 'p' && cmdp2
== '1'){
1875 ans
= CmdPSK1rawDemod(Cmd
+2);
1876 } else if(cmdp
== 'p' && cmdp2
== '2'){
1877 ans
= CmdPSK2rawDemod(Cmd
+2);
1879 PrintAndLog("unknown modulation entered - see help ('h') for parameter structure");
1884 int CmdGrid(const char *Cmd
)
1886 sscanf(Cmd
, "%i %i", &PlotGridX
, &PlotGridY
);
1887 PlotGridXdefault
= PlotGridX
;
1888 PlotGridYdefault
= PlotGridY
;
1889 RepaintGraphWindow();
1893 int CmdHexsamples(const char *Cmd
)
1898 char string_buf
[25];
1899 char* string_ptr
= string_buf
;
1900 uint8_t got
[BIGBUF_SIZE
];
1902 sscanf(Cmd
, "%i %i", &requested
, &offset
);
1904 /* if no args send something */
1905 if (requested
== 0) {
1908 if (offset
+ requested
> sizeof(got
)) {
1909 PrintAndLog("Tried to read past end of buffer, <bytes> + <offset> > %d", BIGBUF_SIZE
);
1913 GetFromBigBuf(got
,requested
,offset
);
1914 WaitForResponse(CMD_ACK
,NULL
);
1917 for (j
= 0; j
< requested
; j
++) {
1919 string_ptr
+= sprintf(string_ptr
, "%02x ", got
[j
]);
1921 *(string_ptr
- 1) = '\0'; // remove the trailing space
1922 PrintAndLog("%s", string_buf
);
1923 string_buf
[0] = '\0';
1924 string_ptr
= string_buf
;
1927 if (j
== requested
- 1 && string_buf
[0] != '\0') { // print any remaining bytes
1928 *(string_ptr
- 1) = '\0';
1929 PrintAndLog("%s", string_buf
);
1930 string_buf
[0] = '\0';
1936 int CmdHide(const char *Cmd
)
1942 //zero mean GraphBuffer
1943 int CmdHpf(const char *Cmd
)
1948 for (i
= 10; i
< GraphTraceLen
; ++i
)
1949 accum
+= GraphBuffer
[i
];
1950 accum
/= (GraphTraceLen
- 10);
1951 for (i
= 0; i
< GraphTraceLen
; ++i
)
1952 GraphBuffer
[i
] -= accum
;
1954 RepaintGraphWindow();
1963 bool _headBit( BitstreamOut
*stream
)
1965 int bytepos
= stream
->position
>> 3; // divide by 8
1966 int bitpos
= (stream
->position
++) & 7; // mask out 00000111
1967 return (*(stream
->buffer
+ bytepos
) >> (7-bitpos
)) & 1;
1970 uint8_t getByte(uint8_t bits_per_sample
, BitstreamOut
* b
)
1974 for(i
=0 ; i
< bits_per_sample
; i
++)
1976 val
|= (_headBit(b
) << (7-i
));
1981 int getSamples(const char *Cmd
, bool silent
)
1983 //If we get all but the last byte in bigbuf,
1984 // we don't have to worry about remaining trash
1985 // in the last byte in case the bits-per-sample
1986 // does not line up on byte boundaries
1988 uint8_t got
[BIGBUF_SIZE
-1] = { 0 };
1990 int n
= strtol(Cmd
, NULL
, 0);
1995 if (n
> sizeof(got
))
1998 PrintAndLog("Reading %d bytes from device memory\n", n
);
1999 GetFromBigBuf(got
,n
,0);
2000 PrintAndLog("Data fetched");
2001 UsbCommand response
;
2002 WaitForResponse(CMD_ACK
, &response
);
2003 uint8_t bits_per_sample
= 8;
2005 //Old devices without this feature would send 0 at arg[0]
2006 if(response
.arg
[0] > 0)
2008 sample_config
*sc
= (sample_config
*) response
.d
.asBytes
;
2009 PrintAndLog("Samples @ %d bits/smpl, decimation 1:%d ", sc
->bits_per_sample
2011 bits_per_sample
= sc
->bits_per_sample
;
2013 if(bits_per_sample
< 8)
2015 PrintAndLog("Unpacking...");
2016 BitstreamOut bout
= { got
, bits_per_sample
* n
, 0};
2018 for (j
= 0; j
* bits_per_sample
< n
* 8 && j
< n
; j
++) {
2019 uint8_t sample
= getByte(bits_per_sample
, &bout
);
2020 GraphBuffer
[j
] = ((int) sample
)- 128;
2023 PrintAndLog("Unpacked %d samples" , j
);
2026 for (int j
= 0; j
< n
; j
++) {
2027 GraphBuffer
[j
] = ((int)got
[j
]) - 128;
2032 RepaintGraphWindow();
2036 int CmdSamples(const char *Cmd
)
2038 return getSamples(Cmd
, false);
2041 int CmdTuneSamples(const char *Cmd
)
2044 printf("\nMeasuring antenna characteristics, please wait...");
2046 UsbCommand c
= {CMD_MEASURE_ANTENNA_TUNING
};
2050 while(!WaitForResponseTimeout(CMD_MEASURED_ANTENNA_TUNING
,&resp
,1000)) {
2054 PrintAndLog("\nNo response from Proxmark. Aborting...");
2060 int vLf125
, vLf134
, vHf
;
2061 vLf125
= resp
.arg
[0] & 0xffff;
2062 vLf134
= resp
.arg
[0] >> 16;
2063 vHf
= resp
.arg
[1] & 0xffff;;
2064 peakf
= resp
.arg
[2] & 0xffff;
2065 peakv
= resp
.arg
[2] >> 16;
2067 PrintAndLog("# LF antenna: %5.2f V @ 125.00 kHz", vLf125
/1000.0);
2068 PrintAndLog("# LF antenna: %5.2f V @ 134.00 kHz", vLf134
/1000.0);
2069 PrintAndLog("# LF optimal: %5.2f V @%9.2f kHz", peakv
/1000.0, 12000.0/(peakf
+1));
2070 PrintAndLog("# HF antenna: %5.2f V @ 13.56 MHz", vHf
/1000.0);
2072 #define LF_UNUSABLE_V 2948 // was 2000. Changed due to bugfix in voltage measurements. LF results are now 47% higher.
2073 #define LF_MARGINAL_V 14739 // was 10000. Changed due to bugfix bug in voltage measurements. LF results are now 47% higher.
2074 #define HF_UNUSABLE_V 3167 // was 2000. Changed due to bugfix in voltage measurements. HF results are now 58% higher.
2075 #define HF_MARGINAL_V 7917 // was 5000. Changed due to bugfix in voltage measurements. HF results are now 58% higher.
2077 if (peakv
< LF_UNUSABLE_V
)
2078 PrintAndLog("# Your LF antenna is unusable.");
2079 else if (peakv
< LF_MARGINAL_V
)
2080 PrintAndLog("# Your LF antenna is marginal.");
2081 if (vHf
< HF_UNUSABLE_V
)
2082 PrintAndLog("# Your HF antenna is unusable.");
2083 else if (vHf
< HF_MARGINAL_V
)
2084 PrintAndLog("# Your HF antenna is marginal.");
2086 if (peakv
>= LF_UNUSABLE_V
) {
2087 for (int i
= 0; i
< 256; i
++) {
2088 GraphBuffer
[i
] = resp
.d
.asBytes
[i
] - 128;
2090 PrintAndLog("Displaying LF tuning graph. Divisor 89 is 134khz, 95 is 125khz.\n");
2092 GraphTraceLen
= 256;
2094 RepaintGraphWindow();
2101 int CmdLoad(const char *Cmd
)
2103 char filename
[FILE_PATH_SIZE
] = {0x00};
2107 if (len
> FILE_PATH_SIZE
) len
= FILE_PATH_SIZE
;
2108 memcpy(filename
, Cmd
, len
);
2110 FILE *f
= fopen(filename
, "r");
2112 PrintAndLog("couldn't open '%s'", filename
);
2118 while (fgets(line
, sizeof (line
), f
)) {
2119 GraphBuffer
[GraphTraceLen
] = atoi(line
);
2123 PrintAndLog("loaded %d samples", GraphTraceLen
);
2124 RepaintGraphWindow();
2128 int CmdLtrim(const char *Cmd
)
2131 if (GraphTraceLen
<=0) return 0;
2132 for (int i
= ds
; i
< GraphTraceLen
; ++i
)
2133 GraphBuffer
[i
-ds
] = GraphBuffer
[i
];
2134 GraphTraceLen
-= ds
;
2136 RepaintGraphWindow();
2140 // trim graph to input argument length
2141 int CmdRtrim(const char *Cmd
)
2147 RepaintGraphWindow();
2151 int CmdNorm(const char *Cmd
)
2154 int max
= INT_MIN
, min
= INT_MAX
;
2156 for (i
= 10; i
< GraphTraceLen
; ++i
) {
2157 if (GraphBuffer
[i
] > max
)
2158 max
= GraphBuffer
[i
];
2159 if (GraphBuffer
[i
] < min
)
2160 min
= GraphBuffer
[i
];
2164 for (i
= 0; i
< GraphTraceLen
; ++i
) {
2165 GraphBuffer
[i
] = (GraphBuffer
[i
] - ((max
+ min
) / 2)) * 256 /
2167 //marshmelow: adjusted *1000 to *256 to make +/- 128 so demod commands still work
2170 RepaintGraphWindow();
2174 int CmdPlot(const char *Cmd
)
2180 int CmdSave(const char *Cmd
)
2182 char filename
[FILE_PATH_SIZE
] = {0x00};
2186 if (len
> FILE_PATH_SIZE
) len
= FILE_PATH_SIZE
;
2187 memcpy(filename
, Cmd
, len
);
2190 FILE *f
= fopen(filename
, "w");
2192 PrintAndLog("couldn't open '%s'", filename
);
2196 for (i
= 0; i
< GraphTraceLen
; i
++) {
2197 fprintf(f
, "%d\n", GraphBuffer
[i
]);
2200 PrintAndLog("saved to '%s'", Cmd
);
2204 int CmdScale(const char *Cmd
)
2206 CursorScaleFactor
= atoi(Cmd
);
2207 if (CursorScaleFactor
== 0) {
2208 PrintAndLog("bad, can't have zero scale");
2209 CursorScaleFactor
= 1;
2211 RepaintGraphWindow();
2215 int CmdDirectionalThreshold(const char *Cmd
)
2217 int8_t upThres
= param_get8(Cmd
, 0);
2218 int8_t downThres
= param_get8(Cmd
, 1);
2220 printf("Applying Up Threshold: %d, Down Threshold: %d\n", upThres
, downThres
);
2222 int lastValue
= GraphBuffer
[0];
2223 GraphBuffer
[0] = 0; // Will be changed at the end, but init 0 as we adjust to last samples value if no threshold kicks in.
2225 for (int i
= 1; i
< GraphTraceLen
; ++i
) {
2226 // Apply first threshold to samples heading up
2227 if (GraphBuffer
[i
] >= upThres
&& GraphBuffer
[i
] > lastValue
)
2229 lastValue
= GraphBuffer
[i
]; // Buffer last value as we overwrite it.
2232 // Apply second threshold to samples heading down
2233 else if (GraphBuffer
[i
] <= downThres
&& GraphBuffer
[i
] < lastValue
)
2235 lastValue
= GraphBuffer
[i
]; // Buffer last value as we overwrite it.
2236 GraphBuffer
[i
] = -1;
2240 lastValue
= GraphBuffer
[i
]; // Buffer last value as we overwrite it.
2241 GraphBuffer
[i
] = GraphBuffer
[i
-1];
2245 GraphBuffer
[0] = GraphBuffer
[1]; // Aline with first edited sample.
2246 RepaintGraphWindow();
2250 int CmdZerocrossings(const char *Cmd
)
2252 // Zero-crossings aren't meaningful unless the signal is zero-mean.
2259 for (int i
= 0; i
< GraphTraceLen
; ++i
) {
2260 if (GraphBuffer
[i
] * sign
>= 0) {
2261 // No change in sign, reproduce the previous sample count.
2263 GraphBuffer
[i
] = lastZc
;
2265 // Change in sign, reset the sample count.
2267 GraphBuffer
[i
] = lastZc
;
2275 RepaintGraphWindow();
2279 static command_t CommandTable
[] =
2281 {"help", CmdHelp
, 1, "This help"},
2282 {"askedgedetect", CmdAskEdgeDetect
, 1, "[threshold] Adjust Graph for manual ask demod using the length of sample differences to detect the edge of a wave (use 20-45, def:25)"},
2283 {"askem410xdemod", CmdAskEM410xDemod
, 1, "[clock] [invert<0|1>] [maxErr] -- Demodulate an EM410x tag from GraphBuffer (args optional)"},
2284 {"askgproxiidemod", CmdG_Prox_II_Demod
, 1, "Demodulate a G Prox II tag from GraphBuffer"},
2285 {"autocorr", CmdAutoCorr
, 1, "[window length] [g] -- Autocorrelation over window - g to save back to GraphBuffer (overwrite)"},
2286 {"biphaserawdecode",CmdBiphaseDecodeRaw
,1, "[offset] [invert<0|1>] [maxErr] -- Biphase decode bin stream in DemodBuffer (offset = 0|1 bits to shift the decode start)"},
2287 {"bitsamples", CmdBitsamples
, 0, "Get raw samples as bitstring"},
2288 {"buffclear", CmdBuffClear
, 1, "Clear sample buffer and graph window"},
2289 {"dec", CmdDec
, 1, "Decimate samples"},
2290 {"detectclock", CmdDetectClockRate
, 1, "[modulation] Detect clock rate of wave in GraphBuffer (options: 'a','f','n','p' for ask, fsk, nrz, psk respectively)"},
2291 {"fdxbdemod", CmdFDXBdemodBI
, 1, "Demodulate a FDX-B ISO11784/85 Biphase tag from GraphBuffer"},
2292 {"fskawiddemod", CmdFSKdemodAWID
, 1, "Demodulate an AWID FSK tag from GraphBuffer"},
2293 //{"fskfcdetect", CmdFSKfcDetect, 1, "Try to detect the Field Clock of an FSK wave"},
2294 {"fskhiddemod", CmdFSKdemodHID
, 1, "Demodulate a HID FSK tag from GraphBuffer"},
2295 {"fskiodemod", CmdFSKdemodIO
, 1, "Demodulate an IO Prox FSK tag from GraphBuffer"},
2296 {"fskpyramiddemod", CmdFSKdemodPyramid
, 1, "Demodulate a Pyramid FSK tag from GraphBuffer"},
2297 {"fskparadoxdemod", CmdFSKdemodParadox
, 1, "Demodulate a Paradox FSK tag from GraphBuffer"},
2298 {"getbitstream", CmdGetBitStream
, 1, "Convert GraphBuffer's >=1 values to 1 and <1 to 0"},
2299 {"grid", CmdGrid
, 1, "<x> <y> -- overlay grid on graph window, use zero value to turn off either"},
2300 {"hexsamples", CmdHexsamples
, 0, "<bytes> [<offset>] -- Dump big buffer as hex bytes"},
2301 {"hide", CmdHide
, 1, "Hide graph window"},
2302 {"hpf", CmdHpf
, 1, "Remove DC offset from trace"},
2303 {"load", CmdLoad
, 1, "<filename> -- Load trace (to graph window"},
2304 {"ltrim", CmdLtrim
, 1, "<samples> -- Trim samples from left of trace"},
2305 {"rtrim", CmdRtrim
, 1, "<location to end trace> -- Trim samples from right of trace"},
2306 {"manrawdecode", Cmdmandecoderaw
, 1, "[invert] [maxErr] -- Manchester decode binary stream in DemodBuffer"},
2307 {"norm", CmdNorm
, 1, "Normalize max/min to +/-128"},
2308 {"plot", CmdPlot
, 1, "Show graph window (hit 'h' in window for keystroke help)"},
2309 {"printdemodbuffer",CmdPrintDemodBuff
, 1, "[x] [o] <offset> -- print the data in the DemodBuffer - 'x' for hex output"},
2310 {"pskindalademod", CmdIndalaDecode
, 1, "[clock] [invert<0|1>] -- Demodulate an indala tag (PSK1) from GraphBuffer (args optional)"},
2311 {"psknexwatchdemod",CmdPSKNexWatch
, 1, "Demodulate a NexWatch tag (nexkey, quadrakey) (PSK1) from GraphBuffer"},
2312 {"rawdemod", CmdRawDemod
, 1, "[modulation] ... <options> -see help (h option) -- Demodulate the data in the GraphBuffer and output binary"},
2313 {"samples", CmdSamples
, 0, "[512 - 40000] -- Get raw samples for graph window (GraphBuffer)"},
2314 {"save", CmdSave
, 1, "<filename> -- Save trace (from graph window)"},
2315 {"scale", CmdScale
, 1, "<int> -- Set cursor display scale"},
2316 {"setdebugmode", CmdSetDebugMode
, 1, "<0|1> -- Turn on or off Debugging Mode for demods"},
2317 {"shiftgraphzero", CmdGraphShiftZero
, 1, "<shift> -- Shift 0 for Graphed wave + or - shift value"},
2318 {"dirthreshold", CmdDirectionalThreshold
, 1, "<thres up> <thres down> -- Max rising higher up-thres/ Min falling lower down-thres, keep rest as prev."},
2319 {"tune", CmdTuneSamples
, 0, "Get hw tune samples for graph window"},
2320 {"undec", CmdUndec
, 1, "Un-decimate samples by 2"},
2321 {"zerocrossings", CmdZerocrossings
, 1, "Count time between zero-crossings"},
2322 {NULL
, NULL
, 0, NULL
}
2325 int CmdData(const char *Cmd
)
2327 CmdsParse(CommandTable
, Cmd
);
2331 int CmdHelp(const char *Cmd
)
2333 CmdsHelp(CommandTable
);