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1 //-----------------------------------------------------------------------------
2 // Copyright (C) 2010 iZsh <izsh at fail0verflow.com>
3 //
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
6 // the license.
7 //-----------------------------------------------------------------------------
8 // Low frequency commands
9 //-----------------------------------------------------------------------------
10 #include "cmdlf.h"
11 static int CmdHelp(const char *Cmd);
12
13 int usage_lf_cmdread(void) {
14 PrintAndLog("Usage: lf cmdread d <delay period> z <zero period> o <one period> c <cmdbytes> [H]");
15 PrintAndLog("Options:");
16 PrintAndLog(" h This help");
17 PrintAndLog(" L Low frequency (125 KHz)");
18 PrintAndLog(" H High frequency (134 KHz)");
19 PrintAndLog(" d <delay> delay OFF period, (decimal)");
20 PrintAndLog(" z <zero> time period ZERO, (decimal)");
21 PrintAndLog(" o <one> time period ONE, (decimal)");
22 PrintAndLog(" c <cmd> Command bytes (in ones and zeros)");
23 PrintAndLog(" ************* All periods in microseconds (ms)");
24 PrintAndLog("Examples:");
25 PrintAndLog(" lf cmdread d 80 z 100 o 200 c 11000");
26 PrintAndLog(" lf cmdread d 80 z 100 o 100 c 11000 H");
27 return 0;
28 }
29 int usage_lf_read(void){
30 PrintAndLog("Usage: lf read [h] [s] [t]");
31 PrintAndLog("Options:");
32 PrintAndLog(" h This help");
33 PrintAndLog(" s silent run no printout");
34 PrintAndLog(" t waits for device to respond with no timeout");
35 PrintAndLog("Use 'lf config' to set parameters.");
36 return 0;
37 }
38 int usage_lf_snoop(void) {
39 PrintAndLog("Snoop low frequence signal. Use 'lf config' to set parameters.");
40 PrintAndLog("Usage: lf snoop [h]");
41 PrintAndLog("Options:");
42 PrintAndLog(" h This help");
43 return 0;
44 }
45 int usage_lf_config(void) {
46 PrintAndLog("Usage: lf config [h] [H|<divisor>] [b <bps>] [d <decim>] [a 0|1]");
47 PrintAndLog("Options:");
48 PrintAndLog(" h This help");
49 PrintAndLog(" L Low frequency (125 KHz)");
50 PrintAndLog(" H High frequency (134 KHz)");
51 PrintAndLog(" q <divisor> Manually set divisor. 88-> 134KHz, 95-> 125 Hz");
52 PrintAndLog(" b <bps> Sets resolution of bits per sample. Default (max): 8");
53 PrintAndLog(" d <decim> Sets decimation. A value of N saves only 1 in N samples. Default: 1");
54 PrintAndLog(" a [0|1] Averaging - if set, will average the stored sample value when decimating. Default: 1");
55 PrintAndLog(" t <threshold> Sets trigger threshold. 0 means no threshold (range: 0-128)");
56 PrintAndLog("Examples:");
57 PrintAndLog(" lf config b 8 L");
58 PrintAndLog(" Samples at 125KHz, 8bps.");
59 PrintAndLog(" lf config H b 4 d 3");
60 PrintAndLog(" Samples at 134KHz, averages three samples into one, stored with ");
61 PrintAndLog(" a resolution of 4 bits per sample.");
62 PrintAndLog(" lf read");
63 PrintAndLog(" Performs a read (active field)");
64 PrintAndLog(" lf snoop");
65 PrintAndLog(" Performs a snoop (no active field)");
66 return 0;
67 }
68 int usage_lf_simfsk(void) {
69 PrintAndLog("Usage: lf simfsk [c <clock>] [i] [H <fcHigh>] [L <fcLow>] [d <hexdata>]");
70 PrintAndLog("Options:");
71 PrintAndLog(" h This help");
72 PrintAndLog(" c <clock> Manually set clock - can autodetect if using DemodBuffer");
73 PrintAndLog(" i invert data");
74 PrintAndLog(" H <fcHigh> Manually set the larger Field Clock");
75 PrintAndLog(" L <fcLow> Manually set the smaller Field Clock");
76 //PrintAndLog(" s TBD- -to enable a gap between playback repetitions - default: no gap");
77 PrintAndLog(" d <hexdata> Data to sim as hex - omit to sim from DemodBuffer");
78 PrintAndLog("\n NOTE: if you set one clock manually set them all manually");
79 return 0;
80 }
81 int usage_lf_simask(void) {
82 PrintAndLog("Usage: lf simask [c <clock>] [i] [b|m|r] [s] [d <raw hex to sim>]");
83 PrintAndLog("Options:");
84 PrintAndLog(" h This help");
85 PrintAndLog(" c <clock> Manually set clock - can autodetect if using DemodBuffer");
86 PrintAndLog(" i invert data");
87 PrintAndLog(" b sim ask/biphase");
88 PrintAndLog(" m sim ask/manchester - Default");
89 PrintAndLog(" r sim ask/raw");
90 PrintAndLog(" s add t55xx Sequence Terminator gap - default: no gaps (only manchester)");
91 PrintAndLog(" d <hexdata> Data to sim as hex - omit to sim from DemodBuffer");
92 return 0;
93 }
94 int usage_lf_simpsk(void) {
95 PrintAndLog("Usage: lf simpsk [1|2|3] [c <clock>] [i] [r <carrier>] [d <raw hex to sim>]");
96 PrintAndLog("Options:");
97 PrintAndLog(" h This help");
98 PrintAndLog(" c <clock> Manually set clock - can autodetect if using DemodBuffer");
99 PrintAndLog(" i invert data");
100 PrintAndLog(" 1 set PSK1 (default)");
101 PrintAndLog(" 2 set PSK2");
102 PrintAndLog(" 3 set PSK3");
103 PrintAndLog(" r <carrier> 2|4|8 are valid carriers: default = 2");
104 PrintAndLog(" d <hexdata> Data to sim as hex - omit to sim from DemodBuffer");
105 return 0;
106 }
107 int usage_lf_find(void){
108 PrintAndLog("Usage: lf search [h] <0|1> [u]");
109 PrintAndLog("");
110 PrintAndLog("Options:");
111 PrintAndLog(" h This help");
112 PrintAndLog(" <0|1> Use data from Graphbuffer, if not set, try reading data from tag.");
113 PrintAndLog(" u Search for Unknown tags, if not set, reads only known tags.");
114 PrintAndLog("Examples:");
115 PrintAndLog(" lf search = try reading data from tag & search for known tags");
116 PrintAndLog(" lf search 1 = use data from GraphBuffer & search for known tags");
117 PrintAndLog(" lf search u = try reading data from tag & search for known and unknown tags");
118 PrintAndLog(" lf search 1 u = use data from GraphBuffer & search for known and unknown tags");
119 return 0;
120 }
121
122
123 /* send a LF command before reading */
124 int CmdLFCommandRead(const char *Cmd) {
125
126 bool errors = FALSE;
127 bool useHighFreq = FALSE;
128 uint16_t one = 0, zero = 0;
129 uint8_t cmdp = 0;
130 UsbCommand c = {CMD_MOD_THEN_ACQUIRE_RAW_ADC_SAMPLES_125K, {0,0,0}};
131
132 while(param_getchar(Cmd, cmdp) != 0x00) {
133 switch(param_getchar(Cmd, cmdp)) {
134 case 'h':
135 return usage_lf_cmdread();
136 case 'H':
137 useHighFreq = TRUE;
138 cmdp++;
139 break;
140 case 'L':
141 cmdp++;
142 break;
143 case 'c':
144 param_getstr(Cmd, cmdp+1, (char *)&c.d.asBytes);
145 cmdp+=2;
146 break;
147 case 'd':
148 c.arg[0] = param_get32ex(Cmd, cmdp+1, 0, 10);
149 cmdp+=2;
150 break;
151 case 'z':
152 zero = param_get32ex(Cmd, cmdp+1, 0, 10) & 0xFFFF;
153 cmdp+=2;
154 break;
155 case 'o':
156 one = param_get32ex(Cmd, cmdp+1, 0, 10) & 0xFFFF;
157 cmdp+=2;
158 break;
159 default:
160 PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
161 errors = 1;
162 break;
163 }
164 if(errors) break;
165 }
166 // No args
167 if (cmdp == 0) errors = TRUE;
168
169 //Validations
170 if (errors) return usage_lf_cmdread();
171
172 // zero and one lengths
173 c.arg[1] = (uint32_t)(zero << 16 | one);
174
175 // add frequency 125 or 134
176 c.arg[2] = useHighFreq;
177
178 clearCommandBuffer();
179 SendCommand(&c);
180 return 0;
181 }
182
183 int CmdFlexdemod(const char *Cmd)
184 {
185 #define LONG_WAIT 100
186 int i, j, start, bit, sum;
187 int phase = 0;
188
189 for (i = 0; i < GraphTraceLen; ++i)
190 GraphBuffer[i] = (GraphBuffer[i] < 0) ? -1 : 1;
191
192 for (start = 0; start < GraphTraceLen - LONG_WAIT; start++) {
193 int first = GraphBuffer[start];
194 for (i = start; i < start + LONG_WAIT; i++) {
195 if (GraphBuffer[i] != first) {
196 break;
197 }
198 }
199 if (i == (start + LONG_WAIT))
200 break;
201 }
202
203 if (start == GraphTraceLen - LONG_WAIT) {
204 PrintAndLog("nothing to wait for");
205 return 0;
206 }
207
208 GraphBuffer[start] = 2;
209 GraphBuffer[start+1] = -2;
210 uint8_t bits[64] = {0x00};
211
212 i = start;
213 for (bit = 0; bit < 64; bit++) {
214 sum = 0;
215 for (int j = 0; j < 16; j++) {
216 sum += GraphBuffer[i++];
217 }
218 bits[bit] = (sum > 0) ? 1 : 0;
219 PrintAndLog("bit %d sum %d", bit, sum);
220 }
221
222 for (bit = 0; bit < 64; bit++) {
223 sum = 0;
224 for (j = 0; j < 16; j++)
225 sum += GraphBuffer[i++];
226
227 if (sum > 0 && bits[bit] != 1) PrintAndLog("oops1 at %d", bit);
228
229 if (sum < 0 && bits[bit] != 0) PrintAndLog("oops2 at %d", bit);
230
231 }
232
233 // HACK writing back to graphbuffer.
234 GraphTraceLen = 32*64;
235 i = 0;
236 for (bit = 0; bit < 64; bit++) {
237
238 phase = (bits[bit] == 0) ? 0 : 1;
239
240 for (j = 0; j < 32; j++) {
241 GraphBuffer[i++] = phase;
242 phase = !phase;
243 }
244 }
245 RepaintGraphWindow();
246 return 0;
247 }
248
249 int CmdIndalaDemod(const char *Cmd)
250 {
251 // PSK1, Bitrate 32,
252
253 // Usage: recover 64bit UID by default, specify "224" as arg to recover a 224bit UID
254 int state = -1;
255 int count = 0;
256 int i, j;
257
258 // worst case with GraphTraceLen=64000 is < 4096
259 // under normal conditions it's < 2048
260 uint8_t rawbits[4096];
261
262 int rawbit = 0, worst = 0, worstPos = 0;
263 // PrintAndLog("Expecting a bit less than %d raw bits", GraphTraceLen / 32);
264
265 // loop through raw signal - since we know it is psk1 rf/32 fc/2 skip every other value (+=2)
266 for (i = 0; i < GraphTraceLen-1; i += 2) {
267 count += 1;
268 if ((GraphBuffer[i] > GraphBuffer[i + 1]) && (state != 1)) {
269 // appears redundant - marshmellow
270 if (state == 0) {
271 for (j = 0; j < count - 8; j += 16) {
272 rawbits[rawbit++] = 0;
273 }
274 if ((abs(count - j)) > worst) {
275 worst = abs(count - j);
276 worstPos = i;
277 }
278 }
279 state = 1;
280 count = 0;
281 } else if ((GraphBuffer[i] < GraphBuffer[i + 1]) && (state != 0)) {
282 //appears redundant
283 if (state == 1) {
284 for (j = 0; j < count - 8; j += 16) {
285 rawbits[rawbit++] = 1;
286 }
287 if ((abs(count - j)) > worst) {
288 worst = abs(count - j);
289 worstPos = i;
290 }
291 }
292 state = 0;
293 count = 0;
294 }
295 }
296 if ( rawbit<1 ) return 0;
297
298 if (g_debugMode) {
299 PrintAndLog("Recovered %d raw bits, expected: %d", rawbit, GraphTraceLen/32);
300 PrintAndLog("worst metric (0=best..7=worst): %d at pos %d", worst, worstPos);
301 }
302
303 // Finding the start of a UID
304 int uidlen, long_wait;
305 if (strcmp(Cmd, "224") == 0) {
306 uidlen = 224;
307 long_wait = 30;
308 } else {
309 uidlen = 64;
310 long_wait = 29;
311 }
312
313 int start;
314 int first = 0;
315 for (start = 0; start <= rawbit - uidlen; start++) {
316 first = rawbits[start];
317 for (i = start; i < start + long_wait; i++) {
318 if (rawbits[i] != first) {
319 break;
320 }
321 }
322 if (i == (start + long_wait)) {
323 break;
324 }
325 }
326
327 if (start == rawbit - uidlen + 1) {
328 if (g_debugMode) PrintAndLog("nothing to wait for");
329 return 0;
330 }
331
332 // Inverting signal if needed
333 if (first == 1) {
334 for (i = start; i < rawbit; i++)
335 rawbits[i] = !rawbits[i];
336 }
337
338 // Dumping UID
339 uint8_t bits[224] = {0x00};
340 char showbits[225] = {0x00};
341 int bit;
342 i = start;
343 int times = 0;
344
345 if (uidlen > rawbit) {
346 PrintAndLog("Warning: not enough raw bits to get a full UID");
347 for (bit = 0; bit < rawbit; bit++) {
348 bits[bit] = rawbits[i++];
349 // As we cannot know the parity, let's use "." and "/"
350 showbits[bit] = '.' + bits[bit];
351 }
352 showbits[bit+1]='\0';
353 PrintAndLog("Partial UID=%s", showbits);
354 return 0;
355 } else {
356 for (bit = 0; bit < uidlen; bit++) {
357 bits[bit] = rawbits[i++];
358 showbits[bit] = '0' + bits[bit];
359 }
360 times = 1;
361 }
362
363 //convert UID to HEX
364 uint32_t uid1, uid2, uid3, uid4, uid5, uid6, uid7;
365 int idx;
366 uid1 = uid2 = 0;
367
368 if (uidlen==64){
369 for( idx=0; idx<64; idx++) {
370 if (showbits[idx] == '0') {
371 uid1 = (uid1<<1) | (uid2>>31);
372 uid2 = (uid2<<1) | 0;
373 } else {
374 uid1 = (uid1<<1) | (uid2>>31);
375 uid2 = (uid2<<1) | 1;
376 }
377 }
378 PrintAndLog("UID=%s (%x%08x)", showbits, uid1, uid2);
379 } else {
380 uid3 = uid4 = uid5 = uid6 = uid7 = 0;
381
382 for( idx=0; idx<224; idx++) {
383 uid1 = (uid1<<1) | (uid2>>31);
384 uid2 = (uid2<<1) | (uid3>>31);
385 uid3 = (uid3<<1) | (uid4>>31);
386 uid4 = (uid4<<1) | (uid5>>31);
387 uid5 = (uid5<<1) | (uid6>>31);
388 uid6 = (uid6<<1) | (uid7>>31);
389
390 if (showbits[idx] == '0')
391 uid7 = (uid7<<1) | 0;
392 else
393 uid7 = (uid7<<1) | 1;
394 }
395 PrintAndLog("UID=%s (%x%08x%08x%08x%08x%08x%08x)", showbits, uid1, uid2, uid3, uid4, uid5, uid6, uid7);
396 }
397
398 // Checking UID against next occurrences
399 int failed = 0;
400 for (; i + uidlen <= rawbit;) {
401 failed = 0;
402 for (bit = 0; bit < uidlen; bit++) {
403 if (bits[bit] != rawbits[i++]) {
404 failed = 1;
405 break;
406 }
407 }
408 if (failed == 1) {
409 break;
410 }
411 times += 1;
412 }
413
414 if (g_debugMode) PrintAndLog("Occurrences: %d (expected %d)", times, (rawbit - start) / uidlen);
415
416 // Remodulating for tag cloning
417 // HACK: 2015-01-04 this will have an impact on our new way of seening lf commands (demod)
418 // since this changes graphbuffer data.
419 GraphTraceLen = 32 * uidlen;
420 i = 0;
421 int phase = 0;
422 for (bit = 0; bit < uidlen; bit++) {
423 phase = (bits[bit] == 0) ? 0 : 1;
424 int j;
425 for (j = 0; j < 32; j++) {
426 GraphBuffer[i++] = phase;
427 phase = !phase;
428 }
429 }
430
431 RepaintGraphWindow();
432 return 1;
433 }
434
435 int CmdIndalaClone(const char *Cmd){
436 UsbCommand c;
437 unsigned int uid1, uid2, uid3, uid4, uid5, uid6, uid7;
438
439 uid1 = uid2 = uid3 = uid4 = uid5 = uid6 = uid7 = 0;
440 int n = 0, i = 0;
441
442 if (strchr(Cmd,'l') != 0) {
443 while (sscanf(&Cmd[i++], "%1x", &n ) == 1) {
444 uid1 = (uid1 << 4) | (uid2 >> 28);
445 uid2 = (uid2 << 4) | (uid3 >> 28);
446 uid3 = (uid3 << 4) | (uid4 >> 28);
447 uid4 = (uid4 << 4) | (uid5 >> 28);
448 uid5 = (uid5 << 4) | (uid6 >> 28);
449 uid6 = (uid6 << 4) | (uid7 >> 28);
450 uid7 = (uid7 << 4) | (n & 0xf);
451 }
452 PrintAndLog("Cloning 224bit tag with UID %x%08x%08x%08x%08x%08x%08x", uid1, uid2, uid3, uid4, uid5, uid6, uid7);
453 c.cmd = CMD_INDALA_CLONE_TAG_L;
454 c.d.asDwords[0] = uid1;
455 c.d.asDwords[1] = uid2;
456 c.d.asDwords[2] = uid3;
457 c.d.asDwords[3] = uid4;
458 c.d.asDwords[4] = uid5;
459 c.d.asDwords[5] = uid6;
460 c.d.asDwords[6] = uid7;
461 } else {
462 while (sscanf(&Cmd[i++], "%1x", &n ) == 1) {
463 uid1 = (uid1 << 4) | (uid2 >> 28);
464 uid2 = (uid2 << 4) | (n & 0xf);
465 }
466 PrintAndLog("Cloning 64bit tag with UID %x%08x", uid1, uid2);
467 c.cmd = CMD_INDALA_CLONE_TAG;
468 c.arg[0] = uid1;
469 c.arg[1] = uid2;
470 }
471
472 clearCommandBuffer();
473 SendCommand(&c);
474 return 0;
475 }
476
477 int CmdLFSetConfig(const char *Cmd) {
478 uint8_t divisor = 0;//Frequency divisor
479 uint8_t bps = 0; // Bits per sample
480 uint8_t decimation = 0; //How many to keep
481 bool averaging = 1; // Defaults to true
482 bool errors = FALSE;
483 int trigger_threshold = -1;//Means no change
484 uint8_t unsigned_trigg = 0;
485
486 uint8_t cmdp = 0;
487 while(param_getchar(Cmd, cmdp) != 0x00) {
488 switch(param_getchar(Cmd, cmdp)) {
489 case 'h':
490 return usage_lf_config();
491 case 'H':
492 divisor = 88;
493 cmdp++;
494 break;
495 case 'L':
496 divisor = 95;
497 cmdp++;
498 break;
499 case 'q':
500 errors |= param_getdec(Cmd, cmdp+1, &divisor);
501 cmdp+=2;
502 break;
503 case 't':
504 errors |= param_getdec(Cmd, cmdp+1, &unsigned_trigg);
505 cmdp+=2;
506 if(!errors) trigger_threshold = unsigned_trigg;
507 break;
508 case 'b':
509 errors |= param_getdec(Cmd, cmdp+1, &bps);
510 cmdp+=2;
511 break;
512 case 'd':
513 errors |= param_getdec(Cmd, cmdp+1, &decimation);
514 cmdp+=2;
515 break;
516 case 'a':
517 averaging = param_getchar(Cmd, cmdp+1) == '1';
518 cmdp+=2;
519 break;
520 default:
521 PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
522 errors = 1;
523 break;
524 }
525 if(errors) break;
526 }
527
528 // No args
529 if (cmdp == 0) errors = 1;
530
531 //Validations
532 if (errors) return usage_lf_config();
533
534 //Bps is limited to 8
535 if (bps >> 4) bps = 8;
536
537 sample_config config = { decimation, bps, averaging, divisor, trigger_threshold };
538
539 UsbCommand c = {CMD_SET_LF_SAMPLING_CONFIG, {0,0,0} };
540 memcpy(c.d.asBytes, &config, sizeof(sample_config));
541 clearCommandBuffer();
542 SendCommand(&c);
543 return 0;
544 }
545
546 int CmdLFRead(const char *Cmd) {
547 bool arg1 = false;
548 bool thresholdRead = false;
549 uint8_t cmdp = 0;
550 while(param_getchar(Cmd, cmdp) != 0x00) {
551 switch(param_getchar(Cmd, cmdp)) {
552 case 'h':
553 case 'H':
554 return usage_lf_read();
555 case 's':
556 case 'S':
557 arg1 = true;
558 cmdp++;
559 break;
560 case 't':
561 case 'T':
562 thresholdRead = true;
563 cmdp++;
564 break;
565 default:
566 PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
567 errors = 1;
568 break;
569 }
570 if(errors) break;
571 }
572
573 // No args
574 if (cmdp == 0) errors = 1;
575
576 //Validations
577 if (errors) return usage_lf_read();
578
579 UsbCommand c = {CMD_ACQUIRE_RAW_ADC_SAMPLES_125K, {arg1,0,0}};
580 clearCommandBuffer();
581 SendCommand(&c);
582 if ( thresholdRead ) {
583 WaitForResponse(CMD_ACK,NULL);
584 } else {
585 if ( !WaitForResponseTimeout(CMD_ACK, NULL ,2500) ) {
586 PrintAndLog("command execution time out");
587 return 1;
588 }
589 }
590 return 0;
591 }
592
593 int CmdLFSnoop(const char *Cmd) {
594 uint8_t cmdp = param_getchar(Cmd, 0);
595 if(cmdp == 'h' || cmdp == 'H') return usage_lf_snoop();
596
597 UsbCommand c = {CMD_LF_SNOOP_RAW_ADC_SAMPLES,{0,0,0}};
598 clearCommandBuffer();
599 SendCommand(&c);
600 WaitForResponse(CMD_ACK,NULL);
601 getSamples("", false);
602 return 0;
603 }
604
605 static void ChkBitstream(const char *str) {
606 // convert to bitstream if necessary
607 for (int i = 0; i < (int)(GraphTraceLen / 2); i++){
608 if (GraphBuffer[i] > 1 || GraphBuffer[i] < 0) {
609 CmdGetBitStream("");
610 break;
611 }
612 }
613 }
614 //Attempt to simulate any wave in buffer (one bit per output sample)
615 // converts GraphBuffer to bitstream (based on zero crossings) if needed.
616 int CmdLFSim(const char *Cmd) {
617 int i,j;
618 static int gap;
619
620 sscanf(Cmd, "%i", &gap);
621
622 // convert to bitstream if necessary
623 ChkBitstream(Cmd);
624
625 if (g_debugMode)
626 printf("DEBUG: Sending [%d bytes]\n", GraphTraceLen);
627
628 //can send only 512 bits at a time (1 byte sent per bit...)
629 for (i = 0; i < GraphTraceLen; i += USB_CMD_DATA_SIZE) {
630 UsbCommand c = {CMD_DOWNLOADED_SIM_SAMPLES_125K, {i, 0, 0}};
631
632 for (j = 0; j < USB_CMD_DATA_SIZE; j++)
633 c.d.asBytes[j] = GraphBuffer[i+j];
634
635 clearCommandBuffer();
636 SendCommand(&c);
637 WaitForResponse(CMD_ACK, NULL);
638 printf(".");
639 }
640
641 PrintAndLog("Simulating");
642
643 UsbCommand c = {CMD_SIMULATE_TAG_125K, {GraphTraceLen, gap, 0}};
644 clearCommandBuffer();
645 SendCommand(&c);
646 return 0;
647 }
648
649 // by marshmellow - sim fsk data given clock, fcHigh, fcLow, invert
650 // - allow pull data from DemodBuffer
651 int CmdLFfskSim(const char *Cmd)
652 {
653 //might be able to autodetect FCs and clock from Graphbuffer if using demod buffer
654 // otherwise will need FChigh, FClow, Clock, and bitstream
655 uint8_t fcHigh = 0, fcLow = 0, clk = 0;
656 uint8_t invert = 0;
657 bool errors = FALSE;
658 char hexData[32] = {0x00}; // store entered hex data
659 uint8_t data[255] = {0x00};
660 int dataLen = 0;
661 uint8_t cmdp = 0;
662
663 while(param_getchar(Cmd, cmdp) != 0x00) {
664 switch(param_getchar(Cmd, cmdp)){
665 case 'h':
666 return usage_lf_simfsk();
667 case 'i':
668 invert = 1;
669 cmdp++;
670 break;
671 case 'c':
672 errors |= param_getdec(Cmd, cmdp+1, &clk);
673 cmdp += 2;
674 break;
675 case 'H':
676 errors |= param_getdec(Cmd, cmdp+1, &fcHigh);
677 cmdp += 2;
678 break;
679 case 'L':
680 errors |= param_getdec(Cmd, cmdp+1, &fcLow);
681 cmdp += 2;
682 break;
683 //case 's':
684 // separator = 1;
685 // cmdp++;
686 // break;
687 case 'd':
688 dataLen = param_getstr(Cmd, cmdp+1, hexData);
689 if (dataLen == 0)
690 errors = TRUE;
691 else
692 dataLen = hextobinarray((char *)data, hexData);
693
694 if (dataLen == 0) errors = TRUE;
695 if (errors) PrintAndLog ("Error getting hex data");
696 cmdp+=2;
697 break;
698 default:
699 PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
700 errors = TRUE;
701 break;
702 }
703 if(errors) break;
704 }
705
706 // No args
707 if(cmdp == 0 && DemodBufferLen == 0)
708 errors = TRUE;
709
710 //Validations
711 if(errors) return usage_lf_simfsk();
712
713 if (dataLen == 0){ //using DemodBuffer
714 if (clk == 0 || fcHigh == 0 || fcLow == 0){ //manual settings must set them all
715 uint8_t ans = fskClocks(&fcHigh, &fcLow, &clk, 0);
716 if (ans==0){
717 if (!fcHigh) fcHigh = 10;
718 if (!fcLow) fcLow = 8;
719 if (!clk) clk = 50;
720 }
721 }
722 } else {
723 setDemodBuf(data, dataLen, 0);
724 }
725
726 //default if not found
727 if (clk == 0) clk = 50;
728 if (fcHigh == 0) fcHigh = 10;
729 if (fcLow == 0) fcLow = 8;
730
731 uint16_t arg1, arg2;
732 arg1 = fcHigh << 8 | fcLow;
733 arg2 = invert << 8 | clk;
734 size_t size = DemodBufferLen;
735 if (size > USB_CMD_DATA_SIZE) {
736 PrintAndLog("DemodBuffer too long for current implementation - length: %d - max: %d", size, USB_CMD_DATA_SIZE);
737 size = USB_CMD_DATA_SIZE;
738 }
739 UsbCommand c = {CMD_FSK_SIM_TAG, {arg1, arg2, size}};
740
741 memcpy(c.d.asBytes, DemodBuffer, size);
742 clearCommandBuffer();
743 SendCommand(&c);
744 return 0;
745 }
746
747 // by marshmellow - sim ask data given clock, invert, manchester or raw, separator
748 // - allow pull data from DemodBuffer
749 int CmdLFaskSim(const char *Cmd)
750 {
751 // autodetect clock from Graphbuffer if using demod buffer
752 // needs clock, invert, manchester/raw as m or r, separator as s, and bitstream
753 uint8_t encoding = 1, separator = 0, clk = 0, invert = 0;
754 bool errors = FALSE;
755 char hexData[32] = {0x00};
756 uint8_t data[255]= {0x00}; // store entered hex data
757 int dataLen = 0;
758 uint8_t cmdp = 0;
759
760 while(param_getchar(Cmd, cmdp) != 0x00) {
761 switch(param_getchar(Cmd, cmdp)) {
762 case 'H':
763 case 'h': return usage_lf_simask();
764 case 'i':
765 invert = 1;
766 cmdp++;
767 break;
768 case 'c':
769 errors |= param_getdec(Cmd, cmdp+1, &clk);
770 cmdp += 2;
771 break;
772 case 'b':
773 encoding = 2; //biphase
774 cmdp++;
775 break;
776 case 'm':
777 encoding = 1; //manchester
778 cmdp++;
779 break;
780 case 'r':
781 encoding = 0; //raw
782 cmdp++;
783 break;
784 case 's':
785 separator = 1;
786 cmdp++;
787 break;
788 case 'd':
789 dataLen = param_getstr(Cmd, cmdp+1, hexData);
790 if (dataLen == 0)
791 errors = TRUE;
792 else
793 dataLen = hextobinarray((char *)data, hexData);
794
795 if (dataLen == 0) errors = TRUE;
796 if (errors) PrintAndLog ("Error getting hex data, datalen: %d", dataLen);
797 cmdp += 2;
798 break;
799 default:
800 PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
801 errors = TRUE;
802 break;
803 }
804 if(errors) break;
805 }
806
807 // No args
808 if(cmdp == 0 && DemodBufferLen == 0)
809 errors = TRUE;
810
811 //Validations
812 if(errors) return usage_lf_simask();
813
814 if (dataLen == 0){ //using DemodBuffer
815 if (clk == 0)
816 clk = GetAskClock("0", false, false);
817 } else {
818 setDemodBuf(data, dataLen, 0);
819 }
820 if (clk == 0) clk = 64;
821 if (encoding == 0) clk >>= 2; //askraw needs to double the clock speed
822
823 size_t size = DemodBufferLen;
824
825 if (size > USB_CMD_DATA_SIZE) {
826 PrintAndLog("DemodBuffer too long for current implementation - length: %d - max: %d", size, USB_CMD_DATA_SIZE);
827 size = USB_CMD_DATA_SIZE;
828 }
829
830 PrintAndLog("preparing to sim ask data: %d bits", size);
831
832 uint16_t arg1, arg2;
833 arg1 = clk << 8 | encoding;
834 arg2 = invert << 8 | separator;
835
836 UsbCommand c = {CMD_ASK_SIM_TAG, {arg1, arg2, size}};
837 memcpy(c.d.asBytes, DemodBuffer, size);
838 clearCommandBuffer();
839 SendCommand(&c);
840 return 0;
841 }
842
843 // by marshmellow - sim psk data given carrier, clock, invert
844 // - allow pull data from DemodBuffer or parameters
845 int CmdLFpskSim(const char *Cmd) {
846 //might be able to autodetect FC and clock from Graphbuffer if using demod buffer
847 //will need carrier, Clock, and bitstream
848 uint8_t carrier=0, clk=0;
849 uint8_t invert=0;
850 bool errors = FALSE;
851 char hexData[32] = {0x00}; // store entered hex data
852 uint8_t data[255] = {0x00};
853 int dataLen = 0;
854 uint8_t cmdp = 0;
855 uint8_t pskType = 1;
856
857 while(param_getchar(Cmd, cmdp) != 0x00) {
858 switch(param_getchar(Cmd, cmdp)) {
859 case 'h':
860 return usage_lf_simpsk();
861 case 'i':
862 invert = 1;
863 cmdp++;
864 break;
865 case 'c':
866 errors |= param_getdec(Cmd,cmdp+1,&clk);
867 cmdp +=2;
868 break;
869 case 'r':
870 errors |= param_getdec(Cmd,cmdp+1,&carrier);
871 cmdp += 2;
872 break;
873 case '1':
874 pskType = 1;
875 cmdp++;
876 break;
877 case '2':
878 pskType = 2;
879 cmdp++;
880 break;
881 case '3':
882 pskType = 3;
883 cmdp++;
884 break;
885 case 'd':
886 dataLen = param_getstr(Cmd, cmdp+1, hexData);
887 if (dataLen == 0)
888 errors = TRUE;
889 else
890 dataLen = hextobinarray((char *)data, hexData);
891
892 if (dataLen == 0) errors = TRUE;
893 if (errors) PrintAndLog ("Error getting hex data");
894 cmdp+=2;
895 break;
896 default:
897 PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
898 errors = TRUE;
899 break;
900 }
901 if (errors) break;
902 }
903 // No args
904 if (cmdp == 0 && DemodBufferLen == 0)
905 errors = TRUE;
906
907 //Validations
908 if (errors) return usage_lf_simpsk();
909
910 if (dataLen == 0){ //using DemodBuffer
911 PrintAndLog("Getting Clocks");
912
913 if (clk==0) clk = GetPskClock("", FALSE, FALSE);
914 PrintAndLog("clk: %d",clk);
915
916 if (!carrier) carrier = GetPskCarrier("", FALSE, FALSE);
917 PrintAndLog("carrier: %d", carrier);
918
919 } else {
920 setDemodBuf(data, dataLen, 0);
921 }
922
923 if (clk <= 0) clk = 32;
924
925 if (carrier == 0) carrier = 2;
926
927 if (pskType != 1){
928 if (pskType == 2){
929 //need to convert psk2 to psk1 data before sim
930 psk2TOpsk1(DemodBuffer, DemodBufferLen);
931 } else {
932 PrintAndLog("Sorry, PSK3 not yet available");
933 }
934 }
935 uint16_t arg1, arg2;
936 arg1 = clk << 8 | carrier;
937 arg2 = invert;
938 size_t size = DemodBufferLen;
939 if (size > USB_CMD_DATA_SIZE) {
940 PrintAndLog("DemodBuffer too long for current implementation - length: %d - max: %d", size, USB_CMD_DATA_SIZE);
941 size = USB_CMD_DATA_SIZE;
942 }
943 UsbCommand c = {CMD_PSK_SIM_TAG, {arg1, arg2, size}};
944 PrintAndLog("DEBUG: Sending DemodBuffer Length: %d", size);
945 memcpy(c.d.asBytes, DemodBuffer, size);
946 clearCommandBuffer();
947 SendCommand(&c);
948 return 0;
949 }
950
951 int CmdLFSimBidir(const char *Cmd) {
952 // Set ADC to twice the carrier for a slight supersampling
953 // HACK: not implemented in ARMSRC.
954 PrintAndLog("Not implemented yet.");
955 UsbCommand c = {CMD_LF_SIMULATE_BIDIR, {47, 384, 0}};
956 SendCommand(&c);
957 return 0;
958 }
959
960 int CmdVchDemod(const char *Cmd) {
961 // Is this the entire sync pattern, or does this also include some
962 // data bits that happen to be the same everywhere? That would be
963 // lovely to know.
964 static const int SyncPattern[] = {
965 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
966 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
967 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
968 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
969 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
970 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
971 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
972 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
973 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
974 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
975 };
976
977 // So first, we correlate for the sync pattern, and mark that.
978 int bestCorrel = 0, bestPos = 0;
979 int i, j, sum = 0;
980
981 // It does us no good to find the sync pattern, with fewer than 2048 samples after it.
982
983 for (i = 0; i < (GraphTraceLen - 2048); i++) {
984 for (j = 0; j < ARRAYLEN(SyncPattern); j++) {
985 sum += GraphBuffer[i+j] * SyncPattern[j];
986 }
987 if (sum > bestCorrel) {
988 bestCorrel = sum;
989 bestPos = i;
990 }
991 }
992 PrintAndLog("best sync at %d [metric %d]", bestPos, bestCorrel);
993
994 char bits[257];
995 bits[256] = '\0';
996
997 int worst = INT_MAX, worstPos = 0;
998
999 for (i = 0; i < 2048; i += 8) {
1000 sum = 0;
1001 for (j = 0; j < 8; j++)
1002 sum += GraphBuffer[bestPos+i+j];
1003
1004 if (sum < 0)
1005 bits[i/8] = '.';
1006 else
1007 bits[i/8] = '1';
1008
1009 if(abs(sum) < worst) {
1010 worst = abs(sum);
1011 worstPos = i;
1012 }
1013 }
1014 PrintAndLog("bits:");
1015 PrintAndLog("%s", bits);
1016 PrintAndLog("worst metric: %d at pos %d", worst, worstPos);
1017
1018 // clone
1019 if (strcmp(Cmd, "clone")==0) {
1020 GraphTraceLen = 0;
1021 char *s;
1022 for(s = bits; *s; s++) {
1023 for(j = 0; j < 16; j++) {
1024 GraphBuffer[GraphTraceLen++] = (*s == '1') ? 1 : 0;
1025 }
1026 }
1027 RepaintGraphWindow();
1028 }
1029 return 0;
1030 }
1031
1032 //by marshmellow
1033 int CmdLFfind(const char *Cmd) {
1034 int ans = 0;
1035 size_t minLength = 1000;
1036 char cmdp = param_getchar(Cmd, 0);
1037 char testRaw = param_getchar(Cmd, 1);
1038 if (strlen(Cmd) > 3 || cmdp == 'h' || cmdp == 'H') return usage_lf_find();
1039
1040 if (!offline && (cmdp != '1')){
1041 CmdLFRead("s");
1042 getSamples("30000", false);
1043 } else if (GraphTraceLen < minLength) {
1044 PrintAndLog("Data in Graphbuffer was too small.");
1045 return 0;
1046 }
1047 if (cmdp == 'u' || cmdp == 'U') testRaw = 'u';
1048
1049 PrintAndLog("NOTE: some demods output possible binary\n if it finds something that looks like a tag");
1050 PrintAndLog("False Positives ARE possible\n");
1051 PrintAndLog("\nChecking for known tags:\n");
1052
1053 size_t testLen = minLength;
1054
1055 // only run these tests if device is online
1056 if (!offline && (cmdp != '1')){
1057
1058 // only run if graphbuffer is just noise as it should be for hitag/cotag
1059 if (graphJustNoise(GraphBuffer, testLen)) {
1060
1061 ans=CmdLFHitagReader("26");
1062 if (ans==0)
1063 return 1;
1064
1065 ans=CmdCOTAGRead("");
1066 if (ans>0){
1067 PrintAndLog("\nValid COTAG ID Found!");
1068 return 1;
1069 }
1070 PrintAndLog("Signal looks just like noise. Quitting.");
1071 return 0;
1072 }
1073 }
1074
1075 ans=CmdFSKdemodIO("");
1076 if (ans>0) {
1077 PrintAndLog("\nValid IO Prox ID Found!");
1078 return 1;
1079 }
1080 ans=CmdFSKdemodPyramid("");
1081 if (ans>0) {
1082 PrintAndLog("\nValid Pyramid ID Found!");
1083 return 1;
1084 }
1085 ans=CmdFSKdemodParadox("");
1086 if (ans>0) {
1087 PrintAndLog("\nValid Paradox ID Found!");
1088 return 1;
1089 }
1090 ans=CmdFSKdemodAWID("");
1091 if (ans>0) {
1092 PrintAndLog("\nValid AWID ID Found!");
1093 return 1;
1094 }
1095 ans=CmdFSKdemodHID("");
1096 if (ans>0) {
1097 PrintAndLog("\nValid HID Prox ID Found!");
1098 return 1;
1099 }
1100 ans=CmdAskEM410xDemod("");
1101 if (ans>0) {
1102 PrintAndLog("\nValid EM410x ID Found!");
1103 return 1;
1104 }
1105 ans=CmdG_Prox_II_Demod("");
1106 if (ans>0) {
1107 PrintAndLog("\nValid Guardall G-Prox II ID Found!");
1108 return 1;
1109 }
1110 ans=CmdFDXBdemodBI("");
1111 if (ans>0) {
1112 PrintAndLog("\nValid FDX-B ID Found!");
1113 return 1;
1114 }
1115 ans=EM4x50Read("", false);
1116 if (ans>0) {
1117 PrintAndLog("\nValid EM4x50 ID Found!");
1118 return 1;
1119 }
1120 ans=CmdVikingDemod("");
1121 if (ans>0) {
1122 PrintAndLog("\nValid Viking ID Found!");
1123 return 1;
1124 }
1125 ans=CmdIndalaDecode("");
1126 if (ans>0) {
1127 PrintAndLog("\nValid Indala ID Found!");
1128 return 1;
1129 }
1130 ans=CmdPSKNexWatch("");
1131 if (ans>0) {
1132 PrintAndLog("\nValid NexWatch ID Found!");
1133 return 1;
1134 }
1135 ans=CmdPSKIdteck("");
1136 if (ans>0) {
1137 PrintAndLog("\nValid Idteck ID Found!");
1138 return 1;
1139 }
1140 ans=CmdJablotronDemod("");
1141 if (ans>0) {
1142 PrintAndLog("\nValid Jablotron ID Found!");
1143 return 1;
1144 }
1145 ans=CmdLFNedapDemod("");
1146 if (ans>0) {
1147 PrintAndLog("\nValid NEDAP ID Found!");
1148 return 1;
1149 }
1150 ans=CmdVisa2kDemod("");
1151 if (ans>0) {
1152 PrintAndLog("\nValid Visa2000 ID Found!");
1153 return 1;
1154 }
1155 ans=CmdNoralsyDemod("");
1156 if (ans>0) {
1157 PrintAndLog("\nValid Noralsy ID Found!");
1158 return 1;
1159 }
1160 ans=CmdPrescoDemod("");
1161 if (ans>0) {
1162 PrintAndLog("\nValid Presco ID Found!");
1163 return 1;
1164 }
1165
1166 // TIdemod?
1167 PrintAndLog("\nNo Known Tags Found!\n");
1168 if (testRaw=='u' || testRaw=='U'){
1169 //test unknown tag formats (raw mode)
1170 PrintAndLog("\nChecking for Unknown tags:\n");
1171 ans=AutoCorrelate(4000, FALSE, FALSE);
1172
1173 if (ans > 0) {
1174
1175 PrintAndLog("Possible Auto Correlation of %d repeating samples",ans);
1176
1177 if ( ans % 8 == 0) {
1178 int bytes = (ans / 8);
1179 PrintAndLog("Possible %d bytes", bytes);
1180 int blocks = 0;
1181 if ( bytes % 2 == 0) {
1182 blocks = (bytes / 2);
1183 PrintAndLog("Possible 2 blocks, width %d", blocks);
1184 }
1185 if ( bytes % 4 == 0) {
1186 blocks = (bytes / 4);
1187 PrintAndLog("Possible 4 blocks, width %d", blocks);
1188 }
1189 if ( bytes % 8 == 0) {
1190 blocks = (bytes / 8);
1191 PrintAndLog("Possible 8 blocks, width %d", blocks);
1192 }
1193 if ( bytes % 16 == 0) {
1194 blocks = (bytes / 16);
1195 PrintAndLog("Possible 16 blocks, width %d", blocks);
1196 }
1197 }
1198 }
1199
1200 ans=GetFskClock("",FALSE,FALSE);
1201 if (ans != 0){ //fsk
1202 ans=FSKrawDemod("",TRUE);
1203 if (ans>0) {
1204 PrintAndLog("\nUnknown FSK Modulated Tag Found!");
1205 return 1;
1206 }
1207 }
1208 bool st = TRUE;
1209 ans=ASKDemod_ext("0 0 0",TRUE,FALSE,1,&st);
1210 if (ans>0) {
1211 PrintAndLog("\nUnknown ASK Modulated and Manchester encoded Tag Found!");
1212 PrintAndLog("\nif it does not look right it could instead be ASK/Biphase - try 'data rawdemod ab'");
1213 return 1;
1214 }
1215
1216 ans=CmdPSK1rawDemod("");
1217 if (ans>0) {
1218 PrintAndLog("Possible unknown PSK1 Modulated Tag Found above!\n\nCould also be PSK2 - try 'data rawdemod p2'");
1219 PrintAndLog("\nCould also be PSK3 - [currently not supported]");
1220 PrintAndLog("\nCould also be NRZ - try 'data nrzrawdemod");
1221 return 1;
1222 }
1223 PrintAndLog("\nNo Data Found!\n");
1224 }
1225 return 0;
1226 }
1227
1228 static command_t CommandTable[] =
1229 {
1230 {"help", CmdHelp, 1, "This help"},
1231 {"animal", CmdLFFdx, 1, "{ Animal RFIDs... }"},
1232 {"awid", CmdLFAWID, 1, "{ AWID RFIDs... }"},
1233 {"cotag", CmdLFCOTAG, 1, "{ COTAG RFIDs... }"},
1234 {"em4x", CmdLFEM4X, 1, "{ EM4X RFIDs... }"},
1235 {"guard", CmdLFGuard, 1, "{ Guardall RFIDs... }"},
1236 {"hid", CmdLFHID, 1, "{ HID RFIDs... }"},
1237 {"hitag", CmdLFHitag, 1, "{ HITAG RFIDs... }"},
1238 // {"indala", CmdLFIndala, 1, "{ Indala RFIDs... }"},
1239 {"io", CmdLFIO, 1, "{ IOPROX RFIDs... }"},
1240 {"jablotron", CmdLFJablotron, 1, "{ Jablotron RFIDs... }"},
1241 {"nedap", CmdLFNedap, 1, "{ Nedap RFIDs... }"},
1242 {"noralsy", CmdLFNoralsy, 1, "{ Noralsy RFIDs... }"},
1243 {"pcf7931", CmdLFPCF7931, 1, "{ PCF7931 RFIDs... }"},
1244 {"presco", CmdLFPresco, 1, "{ Presco RFIDs... }"},
1245 {"pyramid", CmdLFPyramid, 1, "{ Farpointe/Pyramid RFIDs... }"},
1246 {"ti", CmdLFTI, 1, "{ TI RFIDs... }"},
1247 {"t55xx", CmdLFT55XX, 1, "{ T55xx RFIDs... }"},
1248 {"viking", CmdLFViking, 1, "{ Viking RFIDs... }"},
1249 {"visa2000", CmdLFVisa2k, 1, "{ Visa2000 RFIDs... }"},
1250 {"config", CmdLFSetConfig, 0, "Set config for LF sampling, bit/sample, decimation, frequency"},
1251 {"cmdread", CmdLFCommandRead, 0, "<off period> <'0' period> <'1' period> <command> ['h' 134] \n\t\t-- Modulate LF reader field to send command before read (all periods in microseconds)"},
1252 {"flexdemod", CmdFlexdemod, 1, "Demodulate samples for FlexPass"},
1253 {"indalademod", CmdIndalaDemod, 1, "['224'] -- Demodulate samples for Indala 64 bit UID (option '224' for 224 bit)"},
1254 {"indalaclone", CmdIndalaClone, 0, "<UID> ['l']-- Clone Indala to T55x7 (tag must be in antenna)(UID in HEX)(option 'l' for 224 UID"},
1255 {"read", CmdLFRead, 0, "['s' silent] Read 125/134 kHz LF ID-only tag. Do 'lf read h' for help"},
1256 {"search", CmdLFfind, 1, "[offline] ['u'] Read and Search for valid known tag (in offline mode it you can load first then search) \n\t\t-- 'u' to search for unknown tags"},
1257 {"sim", CmdLFSim, 0, "[GAP] -- Simulate LF tag from buffer with optional GAP (in microseconds)"},
1258 {"simask", CmdLFaskSim, 0, "[clock] [invert <1|0>] [biphase/manchester/raw <'b'|'m'|'r'>] [msg separator 's'] [d <hexdata>] \n\t\t-- Simulate LF ASK tag from demodbuffer or input"},
1259 {"simfsk", CmdLFfskSim, 0, "[c <clock>] [i] [H <fcHigh>] [L <fcLow>] [d <hexdata>] \n\t\t-- Simulate LF FSK tag from demodbuffer or input"},
1260 {"simpsk", CmdLFpskSim, 0, "[1|2|3] [c <clock>] [i] [r <carrier>] [d <raw hex to sim>] \n\t\t-- Simulate LF PSK tag from demodbuffer or input"},
1261 {"simbidir", CmdLFSimBidir, 0, "Simulate LF tag (with bidirectional data transmission between reader and tag)"},
1262 {"snoop", CmdLFSnoop, 0, "Snoop LF"},
1263 {"vchdemod", CmdVchDemod, 1, "['clone'] -- Demodulate samples for VeriChip"},
1264 {NULL, NULL, 0, NULL}
1265 };
1266
1267 int CmdLF(const char *Cmd) {
1268 clearCommandBuffer();
1269 CmdsParse(CommandTable, Cmd);
1270 return 0;
1271 }
1272
1273 int CmdHelp(const char *Cmd) {
1274 CmdsHelp(CommandTable);
1275 return 0;
1276 }
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