git.zerfleddert.de Git - proxmark3-svn/blob - client/cmdlfem4x.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 EM4x commands
   9 //-----------------------------------------------------------------------------
  10
  11 #include <stdio.h>
  12 #include <string.h>
  13 #include <inttypes.h>
  14 #include "proxmark3.h"
  15 #include "ui.h"
  16 #include "util.h"
  17 #include "graph.h"
  18 #include "cmdparser.h"
  19 #include "cmddata.h"
  20 #include "cmdlf.h"
  21 #include "cmdlfem4x.h"
  22 #include "lfdemod.h"
  23
  24 #define llx PRIx64
  25
  26 char *global_em410xId;
  27
  28 static int CmdHelp(const char *Cmd);
  29
  30 int CmdEMdemodASK(const char *Cmd)
  31 {
  32         char cmdp = param_getchar(Cmd, 0);
  33         int findone = (cmdp == '1') ? 1 : 0;
  34         UsbCommand c={CMD_EM410X_DEMOD};
  35         c.arg[0]=findone;
  36         SendCommand(&c);
  37         return 0;
  38 }
  39
  40 /* Read the ID of an EM410x tag.
  41  * Format:
  42  *   1111 1111 1           <-- standard non-repeatable header
  43  *   XXXX [row parity bit] <-- 10 rows of 5 bits for our 40 bit tag ID
  44  *   ....
  45  *   CCCC                  <-- each bit here is parity for the 10 bits above in corresponding column
  46  *   0                     <-- stop bit, end of tag
  47  */
  48 int CmdEM410xRead(const char *Cmd)
  49 {
  50         uint32_t hi=0;
  51         uint64_t lo=0;
  52
  53         if(!AskEm410xDemod("", &hi, &lo, false)) return 0;
  54         PrintAndLog("EM410x pattern found: ");
  55         printEM410x(hi, lo);
  56         if (hi){
  57                 PrintAndLog ("EM410x XL pattern found");
  58                 return 0;
  59         }
  60         char id[12] = {0x00};
  61         sprintf(id, "%010llx",lo);
  62
  63         global_em410xId = id;
  64         return 1;
  65 }
  66
  67 // emulate an EM410X tag
  68 int CmdEM410xSim(const char *Cmd)
  69 {
  70         int i, n, j, binary[4], parity[4];
  71
  72         char cmdp = param_getchar(Cmd, 0);
  73         uint8_t uid[5] = {0x00};
  74
  75         if (cmdp == 'h' || cmdp == 'H') {
  76                 PrintAndLog("Usage:  lf em4x em410xsim <UID> <clock>");
  77                 PrintAndLog("");
  78                 PrintAndLog("     sample: lf em4x em410xsim 0F0368568B");
  79                 return 0;
  80         }
  81         /* clock is 64 in EM410x tags */
  82         uint8_t clock = 64;
  83
  84         if (param_gethex(Cmd, 0, uid, 10)) {
  85                 PrintAndLog("UID must include 10 HEX symbols");
  86                 return 0;
  87         }
  88         param_getdec(Cmd, 1, &clock);
  89
  90         PrintAndLog("Starting simulating UID %02X%02X%02X%02X%02X  clock: %d", uid[0],uid[1],uid[2],uid[3],uid[4],clock);
  91         PrintAndLog("Press pm3-button to about simulation");
  92
  93
  94         /* clear our graph */
  95         ClearGraph(0);
  96
  97                 /* write 9 start bits */
  98                 for (i = 0; i < 9; i++)
  99                         AppendGraph(0, clock, 1);
 100
 101                 /* for each hex char */
 102                 parity[0] = parity[1] = parity[2] = parity[3] = 0;
 103                 for (i = 0; i < 10; i++)
 104                 {
 105                         /* read each hex char */
 106                         sscanf(&Cmd[i], "%1x", &n);
 107                         for (j = 3; j >= 0; j--, n/= 2)
 108                                 binary[j] = n % 2;
 109
 110                         /* append each bit */
 111                         AppendGraph(0, clock, binary[0]);
 112                         AppendGraph(0, clock, binary[1]);
 113                         AppendGraph(0, clock, binary[2]);
 114                         AppendGraph(0, clock, binary[3]);
 115
 116                         /* append parity bit */
 117                         AppendGraph(0, clock, binary[0] ^ binary[1] ^ binary[2] ^ binary[3]);
 118
 119                         /* keep track of column parity */
 120                         parity[0] ^= binary[0];
 121                         parity[1] ^= binary[1];
 122                         parity[2] ^= binary[2];
 123                         parity[3] ^= binary[3];
 124                 }
 125
 126                 /* parity columns */
 127                 AppendGraph(0, clock, parity[0]);
 128                 AppendGraph(0, clock, parity[1]);
 129                 AppendGraph(0, clock, parity[2]);
 130                 AppendGraph(0, clock, parity[3]);
 131
 132                 /* stop bit */
 133         AppendGraph(1, clock, 0);
 134
 135         CmdLFSim("0"); //240 start_gap.
 136         return 0;
 137 }
 138
 139 /* Function is equivalent of lf read + data samples + em410xread
 140  * looped until an EM410x tag is detected
 141  *
 142  * Why is CmdSamples("16000")?
 143  *  TBD: Auto-grow sample size based on detected sample rate.  IE: If the
 144  *       rate gets lower, then grow the number of samples
 145  *  Changed by martin, 4000 x 4 = 16000,
 146  *  see http://www.proxmark.org/forum/viewtopic.php?pid=7235#p7235
 147 */
 148 int CmdEM410xWatch(const char *Cmd)
 149 {
 150         do {
 151                 if (ukbhit()) {
 152                         printf("\naborted via keyboard!\n");
 153                         break;
 154                 }
 155
 156                 CmdLFRead("s");
 157                 getSamples("8201",true); //capture enough to get 2 complete preambles (4096*2+9)
 158         } while (!CmdEM410xRead(""));
 159
 160         return 0;
 161 }
 162
 163 //currently only supports manchester modulations
 164 int CmdEM410xWatchnSpoof(const char *Cmd)
 165 {
 166         CmdEM410xWatch(Cmd);
 167         PrintAndLog("# Replaying captured ID: %s",global_em410xId);
 168         CmdLFaskSim("");
 169         return 0;
 170 }
 171
 172 int CmdEM410xWrite(const char *Cmd)
 173 {
 174         uint64_t id = 0xFFFFFFFFFFFFFFFF; // invalid id value
 175         int card = 0xFF; // invalid card value
 176         unsigned int clock = 0; // invalid clock value
 177
 178         sscanf(Cmd, "%" PRIx64 " %d %d", &id, &card, &clock);
 179
 180         // Check ID
 181         if (id == 0xFFFFFFFFFFFFFFFF) {
 182                 PrintAndLog("Error! ID is required.\n");
 183                 return 0;
 184         }
 185         if (id >= 0x10000000000) {
 186                 PrintAndLog("Error! Given EM410x ID is longer than 40 bits.\n");
 187                 return 0;
 188         }
 189
 190         // Check Card
 191         if (card == 0xFF) {
 192                 PrintAndLog("Error! Card type required.\n");
 193                 return 0;
 194         }
 195         if (card < 0) {
 196                 PrintAndLog("Error! Bad card type selected.\n");
 197                 return 0;
 198         }
 199
 200         // Check Clock
 201                 // Default: 64
 202                 if (clock == 0)
 203                         clock = 64;
 204
 205         // Allowed clock rates: 16, 32, 40 and 64
 206         if ((clock != 16) && (clock != 32) && (clock != 64) && (clock != 40)) {
 207                 PrintAndLog("Error! Clock rate %d not valid. Supported clock rates are 16, 32, 40 and 64.\n", clock);
 208                 return 0;
 209         }
 210
 211         if (card == 1) {
 212                 PrintAndLog("Writing %s tag with UID 0x%010" PRIx64 " (clock rate: %d)", "T55x7", id, clock);
 213                 // NOTE: We really should pass the clock in as a separate argument, but to
 214                 //   provide for backwards-compatibility for older firmware, and to avoid
 215                 //   having to add another argument to CMD_EM410X_WRITE_TAG, we just store
 216                 //   the clock rate in bits 8-15 of the card value
 217                 card = (card & 0xFF) | ((clock << 8) & 0xFF00);
 218         }       else if (card == 0) {
 219                 PrintAndLog("Writing %s tag with UID 0x%010" PRIx64, "T5555", id, clock);
 220                 card = (card & 0xFF) | ((clock << 8) & 0xFF00);
 221         } else {
 222                 PrintAndLog("Error! Bad card type selected.\n");
 223                 return 0;
 224         }
 225
 226         UsbCommand c = {CMD_EM410X_WRITE_TAG, {card, (uint32_t)(id >> 32), (uint32_t)id}};
 227         SendCommand(&c);
 228
 229         return 0;
 230 }
 231
 232 bool EM_EndParityTest(uint8_t *BitStream, size_t size, uint8_t rows, uint8_t cols, uint8_t pType)
 233 {
 234         if (rows*cols>size) return false;
 235         uint8_t colP=0;
 236         //assume last col is a parity and do not test
 237         for (uint8_t colNum = 0; colNum < cols-1; colNum++) {
 238                 for (uint8_t rowNum = 0; rowNum < rows; rowNum++) {
 239                         colP ^= BitStream[(rowNum*cols)+colNum];
 240                 }
 241                 if (colP != pType) return false;
 242         }
 243         return true;
 244 }
 245
 246 bool EM_ByteParityTest(uint8_t *BitStream, size_t size, uint8_t rows, uint8_t cols, uint8_t pType)
 247 {
 248         if (rows*cols>size) return false;
 249         uint8_t rowP=0;
 250         //assume last row is a parity row and do not test
 251         for (uint8_t rowNum = 0; rowNum < rows-1; rowNum++) {
 252                 for (uint8_t colNum = 0; colNum < cols; colNum++) {
 253                         rowP ^= BitStream[(rowNum*cols)+colNum];
 254                 }
 255                 if (rowP != pType) return false;
 256         }
 257         return true;
 258 }
 259
 260 uint32_t OutputEM4x50_Block(uint8_t *BitStream, size_t size, bool verbose, bool pTest)
 261 {
 262         if (size<45) return 0;
 263         uint32_t code = bytebits_to_byte(BitStream,8);
 264         code = code<<8 | bytebits_to_byte(BitStream+9,8);
 265         code = code<<8 | bytebits_to_byte(BitStream+18,8);
 266         code = code<<8 | bytebits_to_byte(BitStream+27,8);
 267         if (verbose || g_debugMode){
 268                 for (uint8_t i = 0; i<5; i++){
 269                         if (i == 4) PrintAndLog(""); //parity byte spacer
 270                         PrintAndLog("%d%d%d%d%d%d%d%d %d -> 0x%02x",
 271                             BitStream[i*9],
 272                             BitStream[i*9+1],
 273                             BitStream[i*9+2],
 274                             BitStream[i*9+3],
 275                             BitStream[i*9+4],
 276                             BitStream[i*9+5],
 277                             BitStream[i*9+6],
 278                             BitStream[i*9+7],
 279                             BitStream[i*9+8],
 280                             bytebits_to_byte(BitStream+i*9,8)
 281                         );
 282                 }
 283                 if (pTest)
 284                         PrintAndLog("Parity Passed");
 285                 else
 286                         PrintAndLog("Parity Failed");
 287         }
 288         return code;
 289 }
 290 /* Read the transmitted data of an EM4x50 tag
 291  * Format:
 292  *
 293  *  XXXXXXXX [row parity bit (even)] <- 8 bits plus parity
 294  *  XXXXXXXX [row parity bit (even)] <- 8 bits plus parity
 295  *  XXXXXXXX [row parity bit (even)] <- 8 bits plus parity
 296  *  XXXXXXXX [row parity bit (even)] <- 8 bits plus parity
 297  *  CCCCCCCC                         <- column parity bits
 298  *  0                                <- stop bit
 299  *  LW                               <- Listen Window
 300  *
 301  * This pattern repeats for every block of data being transmitted.
 302  * Transmission starts with two Listen Windows (LW - a modulated
 303  * pattern of 320 cycles each (32/32/128/64/64)).
 304  *
 305  * Note that this data may or may not be the UID. It is whatever data
 306  * is stored in the blocks defined in the control word First and Last
 307  * Word Read values. UID is stored in block 32.
 308  */
 309  //completed by Marshmellow
 310 int EM4x50Read(const char *Cmd, bool verbose)
 311 {
 312         uint8_t fndClk[] = {8,16,32,40,50,64,128};
 313         int clk = 0;
 314         int invert = 0;
 315         int tol = 0;
 316         int i, j, startblock, skip, block, start, end, low, high, minClk;
 317         bool complete = false;
 318         int tmpbuff[MAX_GRAPH_TRACE_LEN / 64];
 319         uint32_t Code[6];
 320         char tmp[6];
 321         char tmp2[20];
 322         int phaseoff;
 323         high = low = 0;
 324         memset(tmpbuff, 0, MAX_GRAPH_TRACE_LEN / 64);
 325
 326         // get user entry if any
 327         sscanf(Cmd, "%i %i", &clk, &invert);
 328
 329         // save GraphBuffer - to restore it later
 330         save_restoreGB(1);
 331
 332         // first get high and low values
 333         for (i = 0; i < GraphTraceLen; i++) {
 334                 if (GraphBuffer[i] > high)
 335                         high = GraphBuffer[i];
 336                 else if (GraphBuffer[i] < low)
 337                         low = GraphBuffer[i];
 338         }
 339
 340         i = 0;
 341         j = 0;
 342         minClk = 255;
 343         // get to first full low to prime loop and skip incomplete first pulse
 344         while ((GraphBuffer[i] < high) && (i < GraphTraceLen))
 345                 ++i;
 346         while ((GraphBuffer[i] > low) && (i < GraphTraceLen))
 347                 ++i;
 348         skip = i;
 349
 350         // populate tmpbuff buffer with pulse lengths
 351         while (i < GraphTraceLen) {
 352                 // measure from low to low
 353                 while ((GraphBuffer[i] > low) && (i < GraphTraceLen))
 354                         ++i;
 355                 start= i;
 356                 while ((GraphBuffer[i] < high) && (i < GraphTraceLen))
 357                         ++i;
 358                 while ((GraphBuffer[i] > low) && (i < GraphTraceLen))
 359                         ++i;
 360                 if (j>=(MAX_GRAPH_TRACE_LEN/64)) {
 361                         break;
 362                 }
 363                 tmpbuff[j++]= i - start;
 364                 if (i-start < minClk && i < GraphTraceLen) {
 365                         minClk = i - start;
 366                 }
 367         }
 368         // set clock
 369         if (!clk) {
 370                 for (uint8_t clkCnt = 0; clkCnt<7; clkCnt++) {
 371                         tol = fndClk[clkCnt]/8;
 372                         if (minClk >= fndClk[clkCnt]-tol && minClk <= fndClk[clkCnt]+1) {
 373                                 clk=fndClk[clkCnt];
 374                                 break;
 375                         }
 376                 }
 377                 if (!clk) return 0;
 378         } else tol = clk/8;
 379
 380         // look for data start - should be 2 pairs of LW (pulses of clk*3,clk*2)
 381         start = -1;
 382         for (i= 0; i < j - 4 ; ++i) {
 383                 skip += tmpbuff[i];
 384                 if (tmpbuff[i] >= clk*3-tol && tmpbuff[i] <= clk*3+tol)  //3 clocks
 385                         if (tmpbuff[i+1] >= clk*2-tol && tmpbuff[i+1] <= clk*2+tol)  //2 clocks
 386                                 if (tmpbuff[i+2] >= clk*3-tol && tmpbuff[i+2] <= clk*3+tol) //3 clocks
 387                                         if (tmpbuff[i+3] >= clk-tol)  //1.5 to 2 clocks - depends on bit following
 388                                         {
 389                                                 start= i + 4;
 390                                                 break;
 391                                         }
 392         }
 393         startblock = i + 4;
 394
 395         // skip over the remainder of LW
 396         skip += tmpbuff[i+1] + tmpbuff[i+2] + clk;
 397         if (tmpbuff[i+3]>clk)
 398                 phaseoff = tmpbuff[i+3]-clk;
 399         else
 400                 phaseoff = 0;
 401         // now do it again to find the end
 402         end = skip;
 403         for (i += 3; i < j - 4 ; ++i) {
 404                 end += tmpbuff[i];
 405                 if (tmpbuff[i] >= clk*3-tol && tmpbuff[i] <= clk*3+tol)  //3 clocks
 406                         if (tmpbuff[i+1] >= clk*2-tol && tmpbuff[i+1] <= clk*2+tol)  //2 clocks
 407                                 if (tmpbuff[i+2] >= clk*3-tol && tmpbuff[i+2] <= clk*3+tol) //3 clocks
 408                                         if (tmpbuff[i+3] >= clk-tol)  //1.5 to 2 clocks - depends on bit following
 409                                         {
 410                                                 complete= true;
 411                                                 break;
 412                                         }
 413         }
 414         end = i;
 415         // report back
 416         if (verbose || g_debugMode) {
 417                 if (start >= 0) {
 418                         PrintAndLog("\nNote: one block = 50 bits (32 data, 12 parity, 6 marker)");
 419                 }       else {
 420                         PrintAndLog("No data found!, clock tried:%d",clk);
 421                         PrintAndLog("Try again with more samples.");
 422                         PrintAndLog("  or after a 'data askedge' command to clean up the read");
 423                         return 0;
 424                 }
 425         } else if (start < 0) return 0;
 426         start = skip;
 427         snprintf(tmp2, sizeof(tmp2),"%d %d 1000 %d", clk, invert, clk*47);
 428         // get rid of leading crap
 429         snprintf(tmp, sizeof(tmp), "%i", skip);
 430         CmdLtrim(tmp);
 431         bool pTest;
 432         bool AllPTest = true;
 433         // now work through remaining buffer printing out data blocks
 434         block = 0;
 435         i = startblock;
 436         while (block < 6) {
 437                 if (verbose || g_debugMode) PrintAndLog("\nBlock %i:", block);
 438                 skip = phaseoff;
 439
 440                 // look for LW before start of next block
 441                 for ( ; i < j - 4 ; ++i) {
 442                         skip += tmpbuff[i];
 443                         if (tmpbuff[i] >= clk*3-tol && tmpbuff[i] <= clk*3+tol)
 444                                 if (tmpbuff[i+1] >= clk-tol)
 445                                         break;
 446                 }
 447                 if (i >= j-4) break; //next LW not found
 448                 skip += clk;
 449                 if (tmpbuff[i+1]>clk)
 450                         phaseoff = tmpbuff[i+1]-clk;
 451                 else
 452                         phaseoff = 0;
 453                 i += 2;
 454                 if (ASKDemod(tmp2, false, false, 1) < 1) {
 455                         save_restoreGB(0);
 456                         return 0;
 457                 }
 458                 //set DemodBufferLen to just one block
 459                 DemodBufferLen = skip/clk;
 460                 //test parities
 461                 pTest = EM_ByteParityTest(DemodBuffer,DemodBufferLen,5,9,0);
 462                 pTest &= EM_EndParityTest(DemodBuffer,DemodBufferLen,5,9,0);
 463                 AllPTest &= pTest;
 464                 //get output
 465                 Code[block] = OutputEM4x50_Block(DemodBuffer,DemodBufferLen,verbose, pTest);
 466                 if (g_debugMode) PrintAndLog("\nskipping %d samples, bits:%d", skip, skip/clk);
 467                 //skip to start of next block
 468                 snprintf(tmp,sizeof(tmp),"%i",skip);
 469                 CmdLtrim(tmp);
 470                 block++;
 471                 if (i >= end) break; //in case chip doesn't output 6 blocks
 472         }
 473         //print full code:
 474         if (verbose || g_debugMode || AllPTest){
 475                 if (!complete) {
 476                         PrintAndLog("*** Warning!");
 477                         PrintAndLog("Partial data - no end found!");
 478                         PrintAndLog("Try again with more samples.");
 479                 }
 480                 PrintAndLog("Found data at sample: %i - using clock: %i", start, clk);
 481                 end = block;
 482                 for (block=0; block < end; block++){
 483                         PrintAndLog("Block %d: %08x",block,Code[block]);
 484                 }
 485                 if (AllPTest) {
 486                         PrintAndLog("Parities Passed");
 487                 } else {
 488                         PrintAndLog("Parities Failed");
 489                         PrintAndLog("Try cleaning the read samples with 'data askedge'");
 490                 }
 491         }
 492
 493         //restore GraphBuffer
 494         save_restoreGB(0);
 495         return (int)AllPTest;
 496 }
 497
 498 int CmdEM4x50Read(const char *Cmd)
 499 {
 500         return EM4x50Read(Cmd, true);
 501 }
 502
 503 int CmdReadWord(const char *Cmd)
 504 {
 505         int Word = -1; //default to invalid word
 506         UsbCommand c;
 507
 508         sscanf(Cmd, "%d", &Word);
 509
 510         if ( (Word > 15) | (Word < 0) ) {
 511                 PrintAndLog("Word must be between 0 and 15");
 512                 return 1;
 513         }
 514
 515         PrintAndLog("Reading word %d", Word);
 516
 517         c.cmd = CMD_EM4X_READ_WORD;
 518         c.d.asBytes[0] = 0x0; //Normal mode
 519         c.arg[0] = 0;
 520         c.arg[1] = Word;
 521         c.arg[2] = 0;
 522         SendCommand(&c);
 523         return 0;
 524 }
 525
 526 int CmdReadWordPWD(const char *Cmd)
 527 {
 528         int Word = -1; //default to invalid word
 529         int Password = 0xFFFFFFFF; //default to blank password
 530         UsbCommand c;
 531
 532         sscanf(Cmd, "%d %x", &Word, &Password);
 533
 534         if ( (Word > 15) | (Word < 0) ) {
 535                 PrintAndLog("Word must be between 0 and 15");
 536                 return 1;
 537         }
 538
 539         PrintAndLog("Reading word %d with password %08X", Word, Password);
 540
 541         c.cmd = CMD_EM4X_READ_WORD;
 542         c.d.asBytes[0] = 0x1; //Password mode
 543         c.arg[0] = 0;
 544         c.arg[1] = Word;
 545         c.arg[2] = Password;
 546         SendCommand(&c);
 547         return 0;
 548 }
 549
 550 int CmdWriteWord(const char *Cmd)
 551 {
 552         int Word = 16; //default to invalid block
 553         int Data = 0xFFFFFFFF; //default to blank data
 554         UsbCommand c;
 555
 556         sscanf(Cmd, "%x %d", &Data, &Word);
 557
 558         if (Word > 15) {
 559                 PrintAndLog("Word must be between 0 and 15");
 560                 return 1;
 561         }
 562
 563         PrintAndLog("Writing word %d with data %08X", Word, Data);
 564
 565         c.cmd = CMD_EM4X_WRITE_WORD;
 566         c.d.asBytes[0] = 0x0; //Normal mode
 567         c.arg[0] = Data;
 568         c.arg[1] = Word;
 569         c.arg[2] = 0;
 570         SendCommand(&c);
 571         return 0;
 572 }
 573
 574 int CmdWriteWordPWD(const char *Cmd)
 575 {
 576         int Word = 16; //default to invalid word
 577         int Data = 0xFFFFFFFF; //default to blank data
 578         int Password = 0xFFFFFFFF; //default to blank password
 579         UsbCommand c;
 580
 581         sscanf(Cmd, "%x %d %x", &Data, &Word, &Password);
 582
 583         if (Word > 15) {
 584                 PrintAndLog("Word must be between 0 and 15");
 585                 return 1;
 586         }
 587
 588         PrintAndLog("Writing word %d with data %08X and password %08X", Word, Data, Password);
 589
 590         c.cmd = CMD_EM4X_WRITE_WORD;
 591         c.d.asBytes[0] = 0x1; //Password mode
 592         c.arg[0] = Data;
 593         c.arg[1] = Word;
 594         c.arg[2] = Password;
 595         SendCommand(&c);
 596         return 0;
 597 }
 598
 599 static command_t CommandTable[] =
 600 {
 601         {"help", CmdHelp, 1, "This help"},
 602         {"em410xdemod", CmdEMdemodASK, 0, "[findone] -- Extract ID from EM410x tag (option 0 for continuous loop, 1 for only 1 tag)"},
 603         {"em410xread", CmdEM410xRead, 1, "[clock rate] -- Extract ID from EM410x tag in GraphBuffer"},
 604         {"em410xsim", CmdEM410xSim, 0, "<UID> -- Simulate EM410x tag"},
 605         {"em410xwatch", CmdEM410xWatch, 0, "['h'] -- Watches for EM410x 125/134 kHz tags (option 'h' for 134)"},
 606         {"em410xspoof", CmdEM410xWatchnSpoof, 0, "['h'] --- Watches for EM410x 125/134 kHz tags, and replays them. (option 'h' for 134)" },
 607         {"em410xwrite", CmdEM410xWrite, 0, "<UID> <'0' T5555> <'1' T55x7> [clock rate] -- Write EM410x UID to T5555(Q5) or T55x7 tag, optionally setting clock rate"},
 608         {"em4x50read", CmdEM4x50Read, 1, "Extract data from EM4x50 tag"},
 609         {"readword", CmdReadWord, 1, "<Word> -- Read EM4xxx word data"},
 610         {"readwordPWD", CmdReadWordPWD, 1, "<Word> <Password> -- Read EM4xxx word data in password mode"},
 611         {"writeword", CmdWriteWord, 1, "<Data> <Word> -- Write EM4xxx word data"},
 612         {"writewordPWD", CmdWriteWordPWD, 1, "<Data> <Word> <Password> -- Write EM4xxx word data in password mode"},
 613         {NULL, NULL, 0, NULL}
 614 };
 615
 616 int CmdLFEM4X(const char *Cmd)
 617 {
 618         CmdsParse(CommandTable, Cmd);
 619         return 0;
 620 }
 621
 622 int CmdHelp(const char *Cmd)
 623 {
 624         CmdsHelp(CommandTable);
 625         return 0;
 626 }