git.zerfleddert.de Git - proxmark3-svn/blob - client/cmdlf.c

   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
  11 #include <stdio.h>
  12 #include <stdlib.h>
  13 #include <string.h>
  14 #include <limits.h>
  15 #include "proxmark3.h"
  16 #include "data.h"
  17 #include "graph.h"
  18 #include "ui.h"
  19 #include "cmdparser.h"
  20 #include "cmdmain.h"
  21 #include "cmddata.h"
  22 #include "util.h"
  23 #include "cmdlf.h"
  24 #include "cmdlfhid.h"
  25 #include "cmdlfawid.h"
  26 #include "cmdlfti.h"
  27 #include "cmdlfem4x.h"
  28 #include "cmdlfhitag.h"
  29 #include "cmdlft55xx.h"
  30 #include "cmdlfpcf7931.h"
  31 #include "cmdlfio.h"
  32 #include "lfdemod.h"
  33 #include "cmdlfviking.h"
  34 static int CmdHelp(const char *Cmd);
  35
  36 int usage_lf_cmdread(void) {
  37         PrintAndLog("Usage: lf cmdread d <delay period> z <zero period> o <one period> c <cmdbytes> [H]");
  38         PrintAndLog("Options:        ");
  39         PrintAndLog("       h             This help");
  40         PrintAndLog("       H             Freqency High (134 KHz), default is 'Low (125KHz)'");
  41         PrintAndLog("       d <delay>     delay OFF period, (dec)");
  42         PrintAndLog("       z <zero>      time period ZERO, (dec)");
  43         PrintAndLog("       o <one>       time period ONE, (dec)");
  44         PrintAndLog("       c <cmd>       Command bytes");
  45         PrintAndLog("       ************* All periods in microseconds (ms)");
  46         PrintAndLog("Examples:");
  47         PrintAndLog("      lf cmdread d 80 z 100 o 200 c 11000");
  48         PrintAndLog("      lf cmdread d 80 z 100 o 100 c 11000 H");
  49         return 0;
  50 }
  51 int usage_lf_read(void){
  52         PrintAndLog("Usage: lf read [h] [s]");
  53         PrintAndLog("Options:        ");
  54         PrintAndLog("       h            This help");
  55         PrintAndLog("       s            silent run no printout");
  56         PrintAndLog("This function takes no arguments. ");
  57         PrintAndLog("Use 'lf config' to set parameters.");
  58         return 0;
  59 }
  60 int usage_lf_snoop(void) {
  61         PrintAndLog("Usage: lf snoop");
  62         PrintAndLog("Options:        ");
  63         PrintAndLog("       h            This help");
  64         PrintAndLog("This function takes no arguments. ");
  65         PrintAndLog("Use 'lf config' to set parameters.");
  66         return 0;
  67 }
  68 int usage_lf_config(void) {
  69         PrintAndLog("Usage: lf config [H|<divisor>] [b <bps>] [d <decim>] [a 0|1]");
  70         PrintAndLog("Options:        ");
  71         PrintAndLog("       h             This help");
  72         PrintAndLog("       L             Low frequency (125 KHz)");
  73         PrintAndLog("       H             High frequency (134 KHz)");
  74         PrintAndLog("       q <divisor>   Manually set divisor. 88-> 134KHz, 95-> 125 Hz");
  75         PrintAndLog("       b <bps>       Sets resolution of bits per sample. Default (max): 8");
  76         PrintAndLog("       d <decim>     Sets decimation. A value of N saves only 1 in N samples. Default: 1");
  77         PrintAndLog("       a [0|1]       Averaging - if set, will average the stored sample value when decimating. Default: 1");
  78         PrintAndLog("       t <threshold> Sets trigger threshold. 0 means no threshold (range: 0-128)");
  79         PrintAndLog("Examples:");
  80         PrintAndLog("      lf config b 8 L");
  81         PrintAndLog("                    Samples at 125KHz, 8bps.");
  82         PrintAndLog("      lf config H b 4 d 3");
  83         PrintAndLog("                    Samples at 134KHz, averages three samples into one, stored with ");
  84         PrintAndLog("                    a resolution of 4 bits per sample.");
  85         PrintAndLog("      lf read");
  86         PrintAndLog("                    Performs a read (active field)");
  87         PrintAndLog("      lf snoop");
  88         PrintAndLog("                    Performs a snoop (no active field)");
  89         return 0;
  90 }
  91 int usage_lf_simfsk(void) {
  92   PrintAndLog("Usage: lf simfsk [c <clock>] [i] [H <fcHigh>] [L <fcLow>] [d <hexdata>]");
  93   PrintAndLog("Options:        ");
  94   PrintAndLog("       h              This help");
  95   PrintAndLog("       c <clock>      Manually set clock - can autodetect if using DemodBuffer");
  96   PrintAndLog("       i              invert data");
  97   PrintAndLog("       H <fcHigh>     Manually set the larger Field Clock");
  98   PrintAndLog("       L <fcLow>      Manually set the smaller Field Clock");
  99   //PrintAndLog("       s              TBD- -to enable a gap between playback repetitions - default: no gap");
 100   PrintAndLog("       d <hexdata>    Data to sim as hex - omit to sim from DemodBuffer");
 101   PrintAndLog("\n  NOTE: if you set one clock manually set them all manually");
 102   return 0;
 103 }
 104 int usage_lf_simask(void) {
 105   PrintAndLog("Usage: lf simask [c <clock>] [i] [b|m|r] [s] [d <raw hex to sim>]");
 106   PrintAndLog("Options:        ");
 107   PrintAndLog("       h              This help");
 108   PrintAndLog("       c <clock>      Manually set clock - can autodetect if using DemodBuffer");
 109   PrintAndLog("       i              invert data");
 110   PrintAndLog("       b              sim ask/biphase");
 111   PrintAndLog("       m              sim ask/manchester - Default");
 112   PrintAndLog("       r              sim ask/raw");
 113   PrintAndLog("       s              TBD- -to enable a gap between playback repetitions - default: no gap");
 114   PrintAndLog("       d <hexdata>    Data to sim as hex - omit to sim from DemodBuffer");
 115   return 0;
 116 }
 117 int usage_lf_simpsk(void) {
 118   PrintAndLog("Usage: lf simpsk [1|2|3] [c <clock>] [i] [r <carrier>] [d <raw hex to sim>]");
 119   PrintAndLog("Options:        ");
 120   PrintAndLog("       h              This help");
 121   PrintAndLog("       c <clock>      Manually set clock - can autodetect if using DemodBuffer");
 122   PrintAndLog("       i              invert data");
 123   PrintAndLog("       1              set PSK1 (default)");
 124   PrintAndLog("       2              set PSK2");
 125   PrintAndLog("       3              set PSK3");
 126   PrintAndLog("       r <carrier>    2|4|8 are valid carriers: default = 2");
 127   PrintAndLog("       d <hexdata>    Data to sim as hex - omit to sim from DemodBuffer");
 128   return 0;
 129 }
 130 int usage_lf_find(void){
 131     PrintAndLog("Usage:  lf search <0|1> [u]");
 132     PrintAndLog("     <use data from Graphbuffer> , if not set, try reading data from tag.");
 133     PrintAndLog("     [Search for Unknown tags] , if not set, reads only known tags.");
 134     PrintAndLog("");
 135     PrintAndLog("    sample: lf search     = try reading data from tag & search for known tags");
 136     PrintAndLog("          : lf search 1   = use data from GraphBuffer & search for known tags");
 137     PrintAndLog("          : lf search u   = try reading data from tag & search for known and unknown tags");
 138     PrintAndLog("          : lf search 1 u = use data from GraphBuffer & search for known and unknown tags");
 139         return 0;
 140 }
 141
 142
 143 /* send a LF command before reading */
 144 int CmdLFCommandRead(const char *Cmd)
 145 {
 146         static char dummy[3] = {0x20,0x00,0x00};
 147         UsbCommand c = {CMD_MOD_THEN_ACQUIRE_RAW_ADC_SAMPLES_125K};
 148         bool errors = FALSE;
 149
 150         uint8_t cmdp = 0;
 151         int strLength = 0;
 152
 153         while(param_getchar(Cmd, cmdp) != 0x00) {
 154                 switch(param_getchar(Cmd, cmdp))
 155                 {
 156                 case 'h':
 157                         return usage_lf_cmdread();
 158                 case 'H':
 159                         dummy[1]='h';
 160                         cmdp++;
 161                         break;
 162                 case 'L':
 163                         cmdp++;
 164                         break;
 165                 case 'c':
 166                         strLength = param_getstr(Cmd, cmdp+1, (char *)&c.d.asBytes);
 167                         cmdp+=2;
 168                         break;
 169                 case 'd':
 170                         c.arg[0] = param_get32ex(Cmd, cmdp+1, 0, 10);
 171                         cmdp+=2;
 172                         break;
 173                 case 'z':
 174                         c.arg[1] = param_get32ex(Cmd, cmdp+1, 0, 10);
 175                         cmdp+=2;
 176                         break;
 177                 case 'o':
 178                         c.arg[2] = param_get32ex(Cmd, cmdp+1, 0, 10);
 179                         cmdp+=2;
 180                         break;
 181                 default:
 182                         PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
 183                         errors = 1;
 184                         break;
 185                 }
 186                 if(errors) break;
 187         }
 188         // No args
 189         if (cmdp == 0) errors = 1;
 190
 191         //Validations
 192         if (errors) return usage_lf_cmdread();
 193
 194         // in case they specified 'H'
 195         strcpy((char *)&c.d.asBytes + strLength, dummy);
 196
 197         clearCommandBuffer();
 198         SendCommand(&c);
 199         return 0;
 200 }
 201
 202 int CmdFlexdemod(const char *Cmd)
 203 {
 204   int i;
 205   for (i = 0; i < GraphTraceLen; ++i) {
 206     if (GraphBuffer[i] < 0) {
 207       GraphBuffer[i] = -1;
 208     } else {
 209       GraphBuffer[i] = 1;
 210     }
 211   }
 212
 213 #define LONG_WAIT 100
 214   int start;
 215   for (start = 0; start < GraphTraceLen - LONG_WAIT; start++) {
 216     int first = GraphBuffer[start];
 217     for (i = start; i < start + LONG_WAIT; i++) {
 218       if (GraphBuffer[i] != first) {
 219         break;
 220       }
 221     }
 222     if (i == (start + LONG_WAIT)) {
 223       break;
 224     }
 225   }
 226   if (start == GraphTraceLen - LONG_WAIT) {
 227     PrintAndLog("nothing to wait for");
 228     return 0;
 229   }
 230
 231   GraphBuffer[start] = 2;
 232   GraphBuffer[start+1] = -2;
 233         uint8_t bits[64] = {0x00};
 234
 235         int bit, sum;
 236   i = start;
 237   for (bit = 0; bit < 64; bit++) {
 238                 sum = 0;
 239                 for (int j = 0; j < 16; j++) {
 240       sum += GraphBuffer[i++];
 241     }
 242
 243                 bits[bit] = (sum > 0) ? 1 : 0;
 244
 245     PrintAndLog("bit %d sum %d", bit, sum);
 246   }
 247
 248   for (bit = 0; bit < 64; bit++) {
 249     int j;
 250     int sum = 0;
 251     for (j = 0; j < 16; j++) {
 252       sum += GraphBuffer[i++];
 253     }
 254     if (sum > 0 && bits[bit] != 1) {
 255       PrintAndLog("oops1 at %d", bit);
 256     }
 257     if (sum < 0 && bits[bit] != 0) {
 258       PrintAndLog("oops2 at %d", bit);
 259     }
 260   }
 261
 262         // HACK writing back to graphbuffer.
 263   GraphTraceLen = 32*64;
 264   i = 0;
 265   int phase = 0;
 266   for (bit = 0; bit < 64; bit++) {
 267
 268                 phase = (bits[bit] == 0) ? 0 : 1;
 269
 270     int j;
 271     for (j = 0; j < 32; j++) {
 272       GraphBuffer[i++] = phase;
 273       phase = !phase;
 274     }
 275   }
 276
 277   RepaintGraphWindow();
 278   return 0;
 279 }
 280
 281 int CmdIndalaDemod(const char *Cmd)
 282 {
 283         // Usage: recover 64bit UID by default, specify "224" as arg to recover a 224bit UID
 284
 285         int state = -1;
 286         int count = 0;
 287         int i, j;
 288
 289         // worst case with GraphTraceLen=64000 is < 4096
 290         // under normal conditions it's < 2048
 291
 292         uint8_t rawbits[4096];
 293         int rawbit = 0;
 294         int worst = 0, worstPos = 0;
 295         // PrintAndLog("Expecting a bit less than %d raw bits", GraphTraceLen / 32);
 296
 297         // loop through raw signal - since we know it is psk1 rf/32 fc/2 skip every other value (+=2)
 298         for (i = 0; i < GraphTraceLen-1; i += 2) {
 299                 count += 1;
 300                 if ((GraphBuffer[i] > GraphBuffer[i + 1]) && (state != 1)) {
 301                         // appears redundant - marshmellow
 302                         if (state == 0) {
 303                                 for (j = 0; j <  count - 8; j += 16) {
 304                                         rawbits[rawbit++] = 0;
 305                                 }
 306                                 if ((abs(count - j)) > worst) {
 307                                         worst = abs(count - j);
 308                                         worstPos = i;
 309                                 }
 310                         }
 311                         state = 1;
 312                         count = 0;
 313                 } else if ((GraphBuffer[i] < GraphBuffer[i + 1]) && (state != 0)) {
 314                         //appears redundant
 315                         if (state == 1) {
 316                                 for (j = 0; j <  count - 8; j += 16) {
 317                                         rawbits[rawbit++] = 1;
 318                                 }
 319                                 if ((abs(count - j)) > worst) {
 320                                         worst = abs(count - j);
 321                                         worstPos = i;
 322                                 }
 323                         }
 324                         state = 0;
 325                         count = 0;
 326                 }
 327         }
 328
 329         if ( rawbit>0 ){
 330                 PrintAndLog("Recovered %d raw bits, expected: %d", rawbit, GraphTraceLen/32);
 331                 PrintAndLog("worst metric (0=best..7=worst): %d at pos %d", worst, worstPos);
 332         } else {
 333                 return 0;
 334         }
 335
 336         // Finding the start of a UID
 337         int uidlen, long_wait;
 338         if (strcmp(Cmd, "224") == 0) {
 339                 uidlen = 224;
 340                 long_wait = 30;
 341         } else {
 342                 uidlen = 64;
 343                 long_wait = 29;
 344         }
 345
 346         int start;
 347         int first = 0;
 348         for (start = 0; start <= rawbit - uidlen; start++) {
 349                 first = rawbits[start];
 350                 for (i = start; i < start + long_wait; i++) {
 351                         if (rawbits[i] != first) {
 352                                 break;
 353                         }
 354                 }
 355                 if (i == (start + long_wait)) {
 356                         break;
 357                 }
 358         }
 359
 360         if (start == rawbit - uidlen + 1) {
 361                 PrintAndLog("nothing to wait for");
 362                 return 0;
 363         }
 364
 365         // Inverting signal if needed
 366         if (first == 1) {
 367                 for (i = start; i < rawbit; i++) {
 368                         rawbits[i] = !rawbits[i];
 369                 }
 370         }
 371
 372         // Dumping UID
 373         uint8_t bits[224] = {0x00};
 374         char showbits[225] = {0x00};
 375         int bit;
 376         i = start;
 377         int times = 0;
 378
 379         if (uidlen > rawbit) {
 380                 PrintAndLog("Warning: not enough raw bits to get a full UID");
 381                 for (bit = 0; bit < rawbit; bit++) {
 382                         bits[bit] = rawbits[i++];
 383                         // As we cannot know the parity, let's use "." and "/"
 384                         showbits[bit] = '.' + bits[bit];
 385                 }
 386                 showbits[bit+1]='\0';
 387                 PrintAndLog("Partial UID=%s", showbits);
 388                 return 0;
 389         } else {
 390                 for (bit = 0; bit < uidlen; bit++) {
 391                         bits[bit] = rawbits[i++];
 392                         showbits[bit] = '0' + bits[bit];
 393                 }
 394                 times = 1;
 395         }
 396
 397         //convert UID to HEX
 398         uint32_t uid1, uid2, uid3, uid4, uid5, uid6, uid7;
 399         int idx;
 400         uid1 = uid2 = 0;
 401
 402         if (uidlen==64){
 403                 for( idx=0; idx<64; idx++) {
 404                         if (showbits[idx] == '0') {
 405                                 uid1 = (uid1<<1) | (uid2>>31);
 406                                 uid2 = (uid2<<1) | 0;
 407                         } else {
 408                                 uid1 = (uid1<<1) | (uid2>>31);
 409                                 uid2 = (uid2<<1) | 1;
 410                         }
 411                 }
 412                 PrintAndLog("UID=%s (%x%08x)", showbits, uid1, uid2);
 413         } else {
 414                 uid3 = uid4 = uid5 = uid6 = uid7 = 0;
 415
 416                 for( idx=0; idx<224; idx++) {
 417                         uid1 = (uid1<<1) | (uid2>>31);
 418                         uid2 = (uid2<<1) | (uid3>>31);
 419                         uid3 = (uid3<<1) | (uid4>>31);
 420                         uid4 = (uid4<<1) | (uid5>>31);
 421                         uid5 = (uid5<<1) | (uid6>>31);
 422                         uid6 = (uid6<<1) | (uid7>>31);
 423
 424                         if (showbits[idx] == '0')
 425                                 uid7 = (uid7<<1) | 0;
 426                         else
 427                                 uid7 = (uid7<<1) | 1;
 428                 }
 429                 PrintAndLog("UID=%s (%x%08x%08x%08x%08x%08x%08x)", showbits, uid1, uid2, uid3, uid4, uid5, uid6, uid7);
 430         }
 431
 432         // Checking UID against next occurrences
 433         int failed = 0;
 434         for (; i + uidlen <= rawbit;) {
 435                 failed = 0;
 436                 for (bit = 0; bit < uidlen; bit++) {
 437                         if (bits[bit] != rawbits[i++]) {
 438                                 failed = 1;
 439                                 break;
 440                         }
 441                 }
 442                 if (failed == 1) {
 443                         break;
 444                 }
 445                 times += 1;
 446         }
 447
 448         PrintAndLog("Occurrences: %d (expected %d)", times, (rawbit - start) / uidlen);
 449
 450         // Remodulating for tag cloning
 451         // HACK: 2015-01-04 this will have an impact on our new way of seening lf commands (demod)
 452         // since this changes graphbuffer data.
 453         GraphTraceLen = 32 * uidlen;
 454         i = 0;
 455         int phase = 0;
 456         for (bit = 0; bit < uidlen; bit++) {
 457                 phase = (bits[bit] == 0) ? 0 : 1;
 458                 int j;
 459                 for (j = 0; j < 32; j++) {
 460                         GraphBuffer[i++] = phase;
 461                         phase = !phase;
 462                 }
 463         }
 464
 465         RepaintGraphWindow();
 466         return 1;
 467 }
 468
 469 int CmdIndalaClone(const char *Cmd)
 470 {
 471   UsbCommand c;
 472         unsigned int uid1, uid2, uid3, uid4, uid5, uid6, uid7;
 473
 474         uid1 =  uid2 = uid3 = uid4 = uid5 = uid6 = uid7 = 0;
 475   int n = 0, i = 0;
 476
 477   if (strchr(Cmd,'l') != 0) {
 478     while (sscanf(&Cmd[i++], "%1x", &n ) == 1) {
 479       uid1 = (uid1 << 4) | (uid2 >> 28);
 480       uid2 = (uid2 << 4) | (uid3 >> 28);
 481       uid3 = (uid3 << 4) | (uid4 >> 28);
 482       uid4 = (uid4 << 4) | (uid5 >> 28);
 483       uid5 = (uid5 << 4) | (uid6 >> 28);
 484       uid6 = (uid6 << 4) | (uid7 >> 28);
 485         uid7 = (uid7 << 4) | (n & 0xf);
 486     }
 487     PrintAndLog("Cloning 224bit tag with UID %x%08x%08x%08x%08x%08x%08x", uid1, uid2, uid3, uid4, uid5, uid6, uid7);
 488     c.cmd = CMD_INDALA_CLONE_TAG_L;
 489     c.d.asDwords[0] = uid1;
 490     c.d.asDwords[1] = uid2;
 491     c.d.asDwords[2] = uid3;
 492     c.d.asDwords[3] = uid4;
 493     c.d.asDwords[4] = uid5;
 494     c.d.asDwords[5] = uid6;
 495     c.d.asDwords[6] = uid7;
 496         } else {
 497     while (sscanf(&Cmd[i++], "%1x", &n ) == 1) {
 498       uid1 = (uid1 << 4) | (uid2 >> 28);
 499       uid2 = (uid2 << 4) | (n & 0xf);
 500     }
 501     PrintAndLog("Cloning 64bit tag with UID %x%08x", uid1, uid2);
 502     c.cmd = CMD_INDALA_CLONE_TAG;
 503     c.arg[0] = uid1;
 504     c.arg[1] = uid2;
 505   }
 506
 507         clearCommandBuffer();
 508   SendCommand(&c);
 509   return 0;
 510 }
 511
 512 int CmdLFSetConfig(const char *Cmd)
 513 {
 514
 515         uint8_t divisor =  0;//Frequency divisor
 516         uint8_t bps = 0; // Bits per sample
 517         uint8_t decimation = 0; //How many to keep
 518         bool averaging = 1; // Defaults to true
 519         bool errors = FALSE;
 520         int trigger_threshold =-1;//Means no change
 521         uint8_t unsigned_trigg = 0;
 522
 523         uint8_t cmdp =0;
 524         while(param_getchar(Cmd, cmdp) != 0x00)
 525         {
 526                 switch(param_getchar(Cmd, cmdp))
 527                 {
 528                 case 'h':
 529                         return usage_lf_config();
 530                 case 'H':
 531                         divisor = 88;
 532                         cmdp++;
 533                         break;
 534                 case 'L':
 535                         divisor = 95;
 536                         cmdp++;
 537                         break;
 538                 case 'q':
 539                         errors |= param_getdec(Cmd,cmdp+1,&divisor);
 540                         cmdp+=2;
 541                         break;
 542                 case 't':
 543                         errors |= param_getdec(Cmd,cmdp+1,&unsigned_trigg);
 544                         cmdp+=2;
 545                         if(!errors) trigger_threshold = unsigned_trigg;
 546                         break;
 547                 case 'b':
 548                         errors |= param_getdec(Cmd,cmdp+1,&bps);
 549                         cmdp+=2;
 550                         break;
 551                 case 'd':
 552                         errors |= param_getdec(Cmd,cmdp+1,&decimation);
 553                         cmdp+=2;
 554                         break;
 555                 case 'a':
 556                         averaging = param_getchar(Cmd,cmdp+1) == '1';
 557                         cmdp+=2;
 558                         break;
 559                 default:
 560                         PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
 561                         errors = 1;
 562                         break;
 563                 }
 564                 if(errors) break;
 565         }
 566         if(cmdp == 0)
 567         {
 568                 errors = 1;// No args
 569         }
 570
 571         //Validations
 572         if(errors)
 573         {
 574                 return usage_lf_config();
 575         }
 576         //Bps is limited to 8, so fits in lower half of arg1
 577         if(bps >> 8) bps = 8;
 578
 579         sample_config config = {
 580                 decimation,bps,averaging,divisor,trigger_threshold
 581         };
 582         //Averaging is a flag on high-bit of arg[1]
 583         UsbCommand c = {CMD_SET_LF_SAMPLING_CONFIG};
 584         memcpy(c.d.asBytes,&config,sizeof(sample_config));
 585         clearCommandBuffer();
 586         SendCommand(&c);
 587         return 0;
 588 }
 589
 590 int CmdLFRead(const char *Cmd)
 591 {
 592         bool arg1 = false;
 593         uint8_t cmdp =  param_getchar(Cmd, 0);
 594
 595         if ( cmdp == 'h' || cmdp == 'H') return usage_lf_read();
 596
 597          //suppress print
 598         if ( cmdp == 's' || cmdp == 'S') arg1 = true;
 599
 600         UsbCommand c = {CMD_ACQUIRE_RAW_ADC_SAMPLES_125K, {arg1,0,0}};
 601         clearCommandBuffer();
 602         SendCommand(&c);
 603         if ( !WaitForResponseTimeout(CMD_ACK,NULL,2500) ) {
 604                 PrintAndLog("command execution time out");
 605                 return 1;
 606         }
 607         return 0;
 608 }
 609
 610 int CmdLFSnoop(const char *Cmd)
 611 {
 612         uint8_t cmdp = param_getchar(Cmd, 0);
 613         if(cmdp == 'h' || cmdp == 'H') return usage_lf_snoop();
 614
 615         UsbCommand c = {CMD_LF_SNOOP_RAW_ADC_SAMPLES};
 616         clearCommandBuffer();
 617         SendCommand(&c);
 618         WaitForResponse(CMD_ACK,NULL);
 619         return 0;
 620 }
 621
 622 static void ChkBitstream(const char *str)
 623 {
 624   int i;
 625
 626   /* convert to bitstream if necessary */
 627         for (i = 0; i < (int)(GraphTraceLen / 2); i++){
 628                 if (GraphBuffer[i] > 1 || GraphBuffer[i] < 0) {
 629       CmdGetBitStream("");
 630       break;
 631     }
 632   }
 633 }
 634 //Attempt to simulate any wave in buffer (one bit per output sample)
 635 // converts GraphBuffer to bitstream (based on zero crossings) if needed.
 636 int CmdLFSim(const char *Cmd)
 637 {
 638         int i,j;
 639         static int gap;
 640
 641         sscanf(Cmd, "%i", &gap);
 642
 643         // convert to bitstream if necessary
 644         ChkBitstream(Cmd);
 645
 646         //can send only 512 bits at a time (1 byte sent per bit...)
 647         printf("Sending [%d bytes]", GraphTraceLen);
 648         for (i = 0; i < GraphTraceLen; i += USB_CMD_DATA_SIZE) {
 649                 UsbCommand c = {CMD_DOWNLOADED_SIM_SAMPLES_125K, {i, 0, 0}};
 650
 651                 for (j = 0; j < USB_CMD_DATA_SIZE; j++) {
 652                         c.d.asBytes[j] = GraphBuffer[i+j];
 653                 }
 654                 clearCommandBuffer();
 655                 SendCommand(&c);
 656                 WaitForResponse(CMD_ACK,NULL);
 657                 printf(".");
 658         }
 659
 660         PrintAndLog("\nStarting to simulate");
 661         UsbCommand c = {CMD_SIMULATE_TAG_125K, {GraphTraceLen, gap, 0}};
 662         clearCommandBuffer();
 663         SendCommand(&c);
 664         return 0;
 665 }
 666
 667 // by marshmellow - sim ask data given clock, fcHigh, fcLow, invert
 668 // - allow pull data from DemodBuffer
 669 int CmdLFfskSim(const char *Cmd)
 670 {
 671         //might be able to autodetect FCs and clock from Graphbuffer if using demod buffer
 672         // otherwise will need FChigh, FClow, Clock, and bitstream
 673   uint8_t fcHigh=0, fcLow=0, clk=0;
 674   uint8_t invert=0;
 675   bool errors = FALSE;
 676   char hexData[32] = {0x00}; // store entered hex data
 677   uint8_t data[255] = {0x00};
 678   int dataLen = 0;
 679   uint8_t cmdp = 0;
 680   while(param_getchar(Cmd, cmdp) != 0x00)
 681   {
 682     switch(param_getchar(Cmd, cmdp))
 683     {
 684     case 'h':
 685       return usage_lf_simfsk();
 686     case 'i':
 687       invert = 1;
 688       cmdp++;
 689       break;
 690     case 'c':
 691       errors |= param_getdec(Cmd,cmdp+1,&clk);
 692       cmdp+=2;
 693       break;
 694     case 'H':
 695       errors |= param_getdec(Cmd,cmdp+1,&fcHigh);
 696       cmdp+=2;
 697       break;
 698     case 'L':
 699       errors |= param_getdec(Cmd,cmdp+1,&fcLow);
 700       cmdp+=2;
 701       break;
 702     //case 's':
 703     //  separator=1;
 704     //  cmdp++;
 705     //  break;
 706     case 'd':
 707       dataLen = param_getstr(Cmd, cmdp+1, hexData);
 708       if (dataLen==0) {
 709         errors=TRUE;
 710       } else {
 711         dataLen = hextobinarray((char *)data, hexData);
 712       }
 713       if (dataLen==0) errors=TRUE;
 714       if (errors) PrintAndLog ("Error getting hex data");
 715       cmdp+=2;
 716       break;
 717     default:
 718       PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
 719       errors = TRUE;
 720       break;
 721     }
 722     if(errors) break;
 723   }
 724   if(cmdp == 0 && DemodBufferLen == 0)
 725   {
 726     errors = TRUE;// No args
 727   }
 728
 729   //Validations
 730   if(errors)
 731   {
 732     return usage_lf_simfsk();
 733   }
 734
 735   if (dataLen == 0){ //using DemodBuffer
 736     if (clk==0 || fcHigh==0 || fcLow==0){ //manual settings must set them all
 737       uint8_t ans = fskClocks(&fcHigh, &fcLow, &clk, 0);
 738       if (ans==0){
 739         if (!fcHigh) fcHigh=10;
 740         if (!fcLow) fcLow=8;
 741         if (!clk) clk=50;
 742       }
 743     }
 744   } else {
 745     setDemodBuf(data, dataLen, 0);
 746   }
 747
 748         //default if not found
 749   if (clk == 0) clk = 50;
 750   if (fcHigh == 0) fcHigh = 10;
 751   if (fcLow == 0) fcLow = 8;
 752
 753   uint16_t arg1, arg2;
 754   arg1 = fcHigh << 8 | fcLow;
 755   arg2 = invert << 8 | clk;
 756   size_t size = DemodBufferLen;
 757   if (size > USB_CMD_DATA_SIZE) {
 758     PrintAndLog("DemodBuffer too long for current implementation - length: %d - max: %d", size, USB_CMD_DATA_SIZE);
 759     size = USB_CMD_DATA_SIZE;
 760   }
 761   UsbCommand c = {CMD_FSK_SIM_TAG, {arg1, arg2, size}};
 762
 763   memcpy(c.d.asBytes, DemodBuffer, size);
 764         clearCommandBuffer();
 765   SendCommand(&c);
 766   return 0;
 767 }
 768
 769 // by marshmellow - sim ask data given clock, invert, manchester or raw, separator
 770 // - allow pull data from DemodBuffer
 771 int CmdLFaskSim(const char *Cmd)
 772 {
 773   //autodetect clock from Graphbuffer if using demod buffer
 774         // needs clock, invert, manchester/raw as m or r, separator as s, and bitstream
 775   uint8_t encoding = 1, separator = 0;
 776   uint8_t clk=0, invert=0;
 777   bool errors = FALSE;
 778   char hexData[32] = {0x00};
 779   uint8_t data[255]= {0x00}; // store entered hex data
 780   int dataLen = 0;
 781   uint8_t cmdp = 0;
 782   while(param_getchar(Cmd, cmdp) != 0x00)
 783   {
 784     switch(param_getchar(Cmd, cmdp))
 785     {
 786     case 'h':
 787       return usage_lf_simask();
 788     case 'i':
 789       invert = 1;
 790       cmdp++;
 791       break;
 792     case 'c':
 793       errors |= param_getdec(Cmd,cmdp+1,&clk);
 794       cmdp+=2;
 795       break;
 796     case 'b':
 797       encoding=2; //biphase
 798       cmdp++;
 799       break;
 800     case 'm':
 801       encoding=1;
 802       cmdp++;
 803       break;
 804     case 'r':
 805       encoding=0;
 806       cmdp++;
 807       break;
 808     case 's':
 809       separator=1;
 810       cmdp++;
 811       break;
 812     case 'd':
 813       dataLen = param_getstr(Cmd, cmdp+1, hexData);
 814       if (dataLen==0) {
 815         errors=TRUE;
 816       } else {
 817         dataLen = hextobinarray((char *)data, hexData);
 818       }
 819       if (dataLen==0) errors=TRUE;
 820       if (errors) PrintAndLog ("Error getting hex data, datalen: %d",dataLen);
 821         cmdp+=2;
 822       break;
 823     default:
 824       PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
 825       errors = TRUE;
 826       break;
 827     }
 828     if(errors) break;
 829   }
 830   if(cmdp == 0 && DemodBufferLen == 0)
 831   {
 832     errors = TRUE;// No args
 833   }
 834
 835   //Validations
 836   if(errors)
 837   {
 838     return usage_lf_simask();
 839   }
 840   if (dataLen == 0){ //using DemodBuffer
 841     if (clk == 0) clk = GetAskClock("0", false, false);
 842   } else {
 843     setDemodBuf(data, dataLen, 0);
 844   }
 845   if (clk == 0) clk = 64;
 846   if (encoding == 0) clk = clk/2; //askraw needs to double the clock speed
 847   uint16_t arg1, arg2;
 848   size_t size=DemodBufferLen;
 849   arg1 = clk << 8 | encoding;
 850   arg2 = invert << 8 | separator;
 851   if (size > USB_CMD_DATA_SIZE) {
 852     PrintAndLog("DemodBuffer too long for current implementation - length: %d - max: %d", size, USB_CMD_DATA_SIZE);
 853     size = USB_CMD_DATA_SIZE;
 854   }
 855   UsbCommand c = {CMD_ASK_SIM_TAG, {arg1, arg2, size}};
 856   PrintAndLog("preparing to sim ask data: %d bits", size);
 857   memcpy(c.d.asBytes, DemodBuffer, size);
 858         clearCommandBuffer();
 859   SendCommand(&c);
 860   return 0;
 861 }
 862
 863 // by marshmellow - sim psk data given carrier, clock, invert
 864 // - allow pull data from DemodBuffer or parameters
 865 int CmdLFpskSim(const char *Cmd)
 866 {
 867   //might be able to autodetect FC and clock from Graphbuffer if using demod buffer
 868   //will need carrier, Clock, and bitstream
 869   uint8_t carrier=0, clk=0;
 870   uint8_t invert=0;
 871   bool errors = FALSE;
 872   char hexData[32] = {0x00}; // store entered hex data
 873   uint8_t data[255] = {0x00};
 874   int dataLen = 0;
 875   uint8_t cmdp = 0;
 876   uint8_t pskType = 1;
 877   while(param_getchar(Cmd, cmdp) != 0x00)
 878   {
 879     switch(param_getchar(Cmd, cmdp))
 880     {
 881     case 'h':
 882       return usage_lf_simpsk();
 883     case 'i':
 884       invert = 1;
 885       cmdp++;
 886       break;
 887     case 'c':
 888       errors |= param_getdec(Cmd,cmdp+1,&clk);
 889       cmdp+=2;
 890       break;
 891     case 'r':
 892       errors |= param_getdec(Cmd,cmdp+1,&carrier);
 893       cmdp+=2;
 894       break;
 895     case '1':
 896       pskType=1;
 897       cmdp++;
 898       break;
 899     case '2':
 900       pskType=2;
 901       cmdp++;
 902       break;
 903     case '3':
 904       pskType=3;
 905       cmdp++;
 906       break;
 907     case 'd':
 908       dataLen = param_getstr(Cmd, cmdp+1, hexData);
 909       if (dataLen==0) {
 910         errors=TRUE;
 911       } else {
 912         dataLen = hextobinarray((char *)data, hexData);
 913       }
 914       if (dataLen==0) errors=TRUE;
 915       if (errors) PrintAndLog ("Error getting hex data");
 916       cmdp+=2;
 917       break;
 918     default:
 919       PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
 920       errors = TRUE;
 921       break;
 922     }
 923     if (errors) break;
 924   }
 925   if (cmdp == 0 && DemodBufferLen == 0)
 926   {
 927     errors = TRUE;// No args
 928   }
 929
 930   //Validations
 931   if (errors)
 932   {
 933     return usage_lf_simpsk();
 934   }
 935   if (dataLen == 0){ //using DemodBuffer
 936     PrintAndLog("Getting Clocks");
 937     if (clk==0) clk = GetPskClock("", FALSE, FALSE);
 938     PrintAndLog("clk: %d",clk);
 939     if (!carrier) carrier = GetPskCarrier("", FALSE, FALSE);
 940     PrintAndLog("carrier: %d", carrier);
 941   } else {
 942     setDemodBuf(data, dataLen, 0);
 943   }
 944
 945   if (clk <= 0) clk = 32;
 946   if (carrier == 0) carrier = 2;
 947   if (pskType != 1){
 948     if (pskType == 2){
 949       //need to convert psk2 to psk1 data before sim
 950       psk2TOpsk1(DemodBuffer, DemodBufferLen);
 951     } else {
 952       PrintAndLog("Sorry, PSK3 not yet available");
 953     }
 954   }
 955   uint16_t arg1, arg2;
 956   arg1 = clk << 8 | carrier;
 957   arg2 = invert;
 958   size_t size=DemodBufferLen;
 959   if (size > USB_CMD_DATA_SIZE) {
 960     PrintAndLog("DemodBuffer too long for current implementation - length: %d - max: %d", size, USB_CMD_DATA_SIZE);
 961     size=USB_CMD_DATA_SIZE;
 962   }
 963   UsbCommand c = {CMD_PSK_SIM_TAG, {arg1, arg2, size}};
 964   PrintAndLog("DEBUG: Sending DemodBuffer Length: %d", size);
 965   memcpy(c.d.asBytes, DemodBuffer, size);
 966         clearCommandBuffer();
 967   SendCommand(&c);
 968
 969   return 0;
 970 }
 971
 972 int CmdLFSimBidir(const char *Cmd)
 973 {
 974   // Set ADC to twice the carrier for a slight supersampling
 975   // HACK: not implemented in ARMSRC.
 976   PrintAndLog("Not implemented yet.");
 977   UsbCommand c = {CMD_LF_SIMULATE_BIDIR, {47, 384, 0}};
 978   SendCommand(&c);
 979   return 0;
 980 }
 981
 982 int CmdVchDemod(const char *Cmd)
 983 {
 984   // Is this the entire sync pattern, or does this also include some
 985   // data bits that happen to be the same everywhere? That would be
 986   // lovely to know.
 987   static const int SyncPattern[] = {
 988     1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,
 989     1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
 990     1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,
 991     1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
 992     1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,
 993     1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
 994     1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,
 995     1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
 996     1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,
 997     1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
 998   };
 999
1000   // So first, we correlate for the sync pattern, and mark that.
1001   int bestCorrel = 0, bestPos = 0;
1002   int i;
1003   // It does us no good to find the sync pattern, with fewer than
1004   // 2048 samples after it...
1005   for (i = 0; i < (GraphTraceLen-2048); i++) {
1006     int sum = 0;
1007     int j;
1008     for (j = 0; j < arraylen(SyncPattern); j++) {
1009       sum += GraphBuffer[i+j]*SyncPattern[j];
1010     }
1011     if (sum > bestCorrel) {
1012       bestCorrel = sum;
1013       bestPos = i;
1014     }
1015   }
1016   PrintAndLog("best sync at %d [metric %d]", bestPos, bestCorrel);
1017
1018   char bits[257];
1019   bits[256] = '\0';
1020
1021   int worst = INT_MAX;
1022   int worstPos = 0;
1023
1024   for (i = 0; i < 2048; i += 8) {
1025     int sum = 0;
1026     int j;
1027     for (j = 0; j < 8; j++) {
1028       sum += GraphBuffer[bestPos+i+j];
1029     }
1030     if (sum < 0) {
1031       bits[i/8] = '.';
1032     } else {
1033       bits[i/8] = '1';
1034     }
1035     if(abs(sum) < worst) {
1036       worst = abs(sum);
1037       worstPos = i;
1038     }
1039   }
1040   PrintAndLog("bits:");
1041   PrintAndLog("%s", bits);
1042   PrintAndLog("worst metric: %d at pos %d", worst, worstPos);
1043
1044   if (strcmp(Cmd, "clone")==0) {
1045     GraphTraceLen = 0;
1046     char *s;
1047     for(s = bits; *s; s++) {
1048       int j;
1049       for(j = 0; j < 16; j++) {
1050         GraphBuffer[GraphTraceLen++] = (*s == '1') ? 1 : 0;
1051       }
1052     }
1053     RepaintGraphWindow();
1054   }
1055   return 0;
1056 }
1057
1058 //by marshmellow
1059 int CmdLFfind(const char *Cmd) {
1060         int ans = 0;
1061         char cmdp = param_getchar(Cmd, 0);
1062         char testRaw = param_getchar(Cmd, 1);
1063         if (strlen(Cmd) > 3 || cmdp == 'h' || cmdp == 'H') return usage_lf_find();
1064
1065         if (!offline && (cmdp != '1')){
1066                 CmdLFRead("s");
1067                 getSamples("30000",false);
1068         } else if (GraphTraceLen < 1000) {
1069                 PrintAndLog("Data in Graphbuffer was too small.");
1070                 return 0;
1071         }
1072         if (cmdp == 'u' || cmdp == 'U') testRaw = 'u';
1073
1074         PrintAndLog("NOTE: some demods output possible binary\n  if it finds something that looks like a tag");
1075         PrintAndLog("False Positives ARE possible\n");
1076         PrintAndLog("\nChecking for known tags:\n");
1077
1078         ans=CmdFSKdemodIO("");
1079         if (ans>0) {
1080         PrintAndLog("\nValid IO Prox ID Found!");
1081         return 1;
1082         }
1083
1084         ans=CmdFSKdemodPyramid("");
1085         if (ans>0) {
1086         PrintAndLog("\nValid Pyramid ID Found!");
1087         return 1;
1088         }
1089
1090         ans=CmdFSKdemodParadox("");
1091         if (ans>0) {
1092         PrintAndLog("\nValid Paradox ID Found!");
1093         return 1;
1094         }
1095
1096         ans=CmdFSKdemodAWID("");
1097         if (ans>0) {
1098         PrintAndLog("\nValid AWID ID Found!");
1099         return 1;
1100         }
1101
1102         ans=CmdFSKdemodHID("");
1103         if (ans>0) {
1104         PrintAndLog("\nValid HID Prox ID Found!");
1105         return 1;
1106         }
1107
1108         ans=CmdAskEM410xDemod("");
1109         if (ans>0) {
1110         PrintAndLog("\nValid EM410x ID Found!");
1111         return 1;
1112         }
1113
1114         ans=CmdG_Prox_II_Demod("");
1115         if (ans>0) {
1116         PrintAndLog("\nValid Guardall G-Prox II ID Found!");
1117         return 1;
1118         }
1119
1120         ans=CmdFDXBdemodBI("");
1121         if (ans>0) {
1122                 PrintAndLog("\nValid FDX-B ID Found!");
1123                 return 1;
1124         }
1125
1126         ans=EM4x50Read("", false);
1127         if (ans>0) {
1128                 PrintAndLog("\nValid EM4x50 ID Found!");
1129                 return 1;
1130         }
1131
1132         ans=CmdVikingDemod("");
1133         if (ans>0) {
1134                 PrintAndLog("\nValid Viking ID Found!");
1135                 return 1;
1136         }
1137
1138         ans=CmdIndalaDecode("");
1139         if (ans>0) {
1140                 PrintAndLog("\nValid Indala ID Found!");
1141                 return 1;
1142         }
1143
1144         ans=CmdPSKNexWatch("");
1145         if (ans>0) {
1146                 PrintAndLog("\nValid NexWatch ID Found!");
1147                 return 1;
1148         }
1149         // TIdemod?
1150
1151
1152         PrintAndLog("\nNo Known Tags Found!\n");
1153         if (testRaw=='u' || testRaw=='U'){
1154                 //test unknown tag formats (raw mode)
1155                 PrintAndLog("\nChecking for Unknown tags:\n");
1156                 ans=AutoCorrelate(4000, FALSE, FALSE);
1157
1158                 if (ans > 0) {
1159
1160                         PrintAndLog("Possible Auto Correlation of %d repeating samples",ans);
1161
1162                         if ( ans % 8 == 0)  {
1163                                 int bytes = (ans / 8);
1164                                 PrintAndLog("Possible %d bytes", bytes);
1165                                 int blocks = 0;
1166                                 if ( bytes % 2 == 0) {
1167                                         blocks = (bytes / 2);
1168                                         PrintAndLog("Possible  2 blocks, width %d", blocks);
1169                                 }
1170                                 if ( bytes % 4 == 0) {
1171                                         blocks = (bytes / 4);
1172                                         PrintAndLog("Possible  4 blocks, width %d", blocks);
1173                                 }
1174                                 if ( bytes % 8 == 0) {
1175                                         blocks = (bytes / 8);
1176                                         PrintAndLog("Possible  8 blocks, width %d", blocks);
1177                                 }
1178                                 if ( bytes % 16 == 0) {
1179                                         blocks = (bytes / 16);
1180                                         PrintAndLog("Possible 16 blocks, width %d", blocks);
1181                                 }
1182                         }
1183                 }
1184
1185                 ans=GetFskClock("",FALSE,FALSE);
1186                 if (ans != 0){ //fsk
1187                         ans=FSKrawDemod("",TRUE);
1188                         if (ans>0) {
1189                                 PrintAndLog("\nUnknown FSK Modulated Tag Found!");
1190                                 return 1;
1191                         }
1192                 }
1193
1194                 ans=ASKDemod("0 0 0",TRUE,FALSE,1);
1195                 if (ans>0) {
1196                   PrintAndLog("\nUnknown ASK Modulated and Manchester encoded Tag Found!");
1197                   PrintAndLog("\nif it does not look right it could instead be ASK/Biphase - try 'data rawdemod ab'");
1198                   return 1;
1199                 }
1200
1201                 ans=CmdPSK1rawDemod("");
1202                 if (ans>0) {
1203                         PrintAndLog("Possible unknown PSK1 Modulated Tag Found above!\n\nCould also be PSK2 - try 'data rawdemod p2'");
1204                         PrintAndLog("\nCould also be PSK3 - [currently not supported]");
1205                         PrintAndLog("\nCould also be NRZ - try 'data nrzrawdemod");
1206                         return 1;
1207                 }
1208                 PrintAndLog("\nNo Data Found!\n");
1209         }
1210         return 0;
1211 }
1212
1213 static command_t CommandTable[] =
1214 {
1215         {"help",        CmdHelp,            1, "This help"},
1216         {"awid",        CmdLFAWID,          1, "{ AWID RFIDs... }"},
1217         {"em4x",        CmdLFEM4X,          1, "{ EM4X RFIDs... }"},
1218         {"hid",         CmdLFHID,           1, "{ HID RFIDs... }"},
1219         {"hitag",       CmdLFHitag,         1, "{ HITAG RFIDs... }"},
1220         {"io",            CmdLFIO,                1, "{ IOPROX RFIDs... }"},
1221         {"pcf7931",     CmdLFPCF7931,       1, "{ PCF7931 RFIDs... }"},
1222         {"ti",          CmdLFTI,            1, "{ TI RFIDs... }"},
1223         {"t55xx",       CmdLFT55XX,         1, "{ T55X7 RFIDs... }"},
1224         {"viking",      CmdLFViking,        1, "{ Viking RFIDs... }"},
1225         {"config",      CmdLFSetConfig,     0, "Set config for LF sampling, bit/sample, decimation, frequency"},
1226
1227         {"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)"},
1228         {"flexdemod",   CmdFlexdemod,       1, "Demodulate samples for FlexPass"},
1229         {"indalademod", CmdIndalaDemod,     1, "['224'] -- Demodulate samples for Indala 64 bit UID (option '224' for 224 bit)"},
1230         {"indalaclone", CmdIndalaClone,     0, "<UID> ['l']-- Clone Indala to T55x7 (tag must be in antenna)(UID in HEX)(option 'l' for 224 UID"},
1231         {"read",        CmdLFRead,          0, "['s' silent] Read 125/134 kHz LF ID-only tag. Do 'lf read h' for help"},
1232         {"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"},
1233         {"sim",         CmdLFSim,           0, "[GAP] -- Simulate LF tag from buffer with optional GAP (in microseconds)"},
1234         {"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"},
1235         {"simfsk",      CmdLFfskSim,        0, "[c <clock>] [i] [H <fcHigh>] [L <fcLow>] [d <hexdata>] \n\t\t-- Simulate LF FSK tag from demodbuffer or input"},
1236         {"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"},
1237         {"simbidir",    CmdLFSimBidir,      0, "Simulate LF tag (with bidirectional data transmission between reader and tag)"},
1238         {"snoop",       CmdLFSnoop,         0, "Snoop LF"},
1239         {"vchdemod",    CmdVchDemod,        1, "['clone'] -- Demodulate samples for VeriChip"},
1240         {NULL, NULL, 0, NULL}
1241 };
1242
1243 int CmdLF(const char *Cmd)
1244 {
1245   CmdsParse(CommandTable, Cmd);
1246   return 0;
1247 }
1248
1249 int CmdHelp(const char *Cmd)
1250 {
1251   CmdsHelp(CommandTable);
1252   return 0;
1253 }