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 char *global_em410xId;
  25
  26 static int CmdHelp(const char *Cmd);
  27
  28 int CmdEMdemodASK(const char *Cmd)
  29 {
  30         char cmdp = param_getchar(Cmd, 0);
  31         int findone = (cmdp == '1') ? 1 : 0;
  32         UsbCommand c={CMD_EM410X_DEMOD};
  33         c.arg[0]=findone;
  34         SendCommand(&c);
  35         return 0;
  36 }
  37
  38 /* Read the ID of an EM410x tag.
  39  * Format:
  40  *   1111 1111 1           <-- standard non-repeatable header
  41  *   XXXX [row parity bit] <-- 10 rows of 5 bits for our 40 bit tag ID
  42  *   ....
  43  *   CCCC                  <-- each bit here is parity for the 10 bits above in corresponding column
  44  *   0                     <-- stop bit, end of tag
  45  */
  46 int CmdEM410xRead(const char *Cmd)
  47 {
  48         uint32_t hi=0;
  49         uint64_t lo=0;
  50
  51         if(!AskEm410xDemod("", &hi, &lo, false)) return 0;
  52         PrintAndLog("EM410x pattern found: ");
  53         printEM410x(hi, lo);
  54         if (hi){
  55                 PrintAndLog ("EM410x XL pattern found");
  56                 return 0;
  57         }
  58         char id[12] = {0x00};
  59         //sprintf(id, "%010llx",lo);
  60          sprintf(id, "%010"PRIu64, lo);
  61
  62         global_em410xId = id;
  63         return 1;
  64 }
  65
  66 // emulate an EM410X tag
  67 int CmdEM410xSim(const char *Cmd)
  68 {
  69         int i, n, j, binary[4], parity[4];
  70
  71         char cmdp = param_getchar(Cmd, 0);
  72         uint8_t uid[5] = {0x00};
  73
  74         if (cmdp == 'h' || cmdp == 'H') {
  75                 PrintAndLog("Usage:  lf em4x em410xsim <UID> <clock>");
  76                 PrintAndLog("");
  77                 PrintAndLog("     sample: lf em4x em410xsim 0F0368568B");
  78                 return 0;
  79         }
  80         /* clock is 64 in EM410x tags */
  81         uint8_t clock = 64;
  82
  83         if (param_gethex(Cmd, 0, uid, 10)) {
  84                 PrintAndLog("UID must include 10 HEX symbols");
  85                 return 0;
  86         }
  87         param_getdec(Cmd, 1, &clock);
  88
  89         PrintAndLog("Starting simulating UID %02X%02X%02X%02X%02X  clock: %d", uid[0],uid[1],uid[2],uid[3],uid[4],clock);
  90         PrintAndLog("Press pm3-button to about simulation");
  91
  92
  93         /* clear our graph */
  94         ClearGraph(0);
  95
  96                 /* write 9 start bits */
  97                 for (i = 0; i < 9; i++)
  98                         AppendGraph(0, clock, 1);
  99
 100                 /* for each hex char */
 101                 parity[0] = parity[1] = parity[2] = parity[3] = 0;
 102                 for (i = 0; i < 10; i++)
 103                 {
 104                         /* read each hex char */
 105                         sscanf(&Cmd[i], "%1x", &n);
 106                         for (j = 3; j >= 0; j--, n/= 2)
 107                                 binary[j] = n % 2;
 108
 109                         /* append each bit */
 110                         AppendGraph(0, clock, binary[0]);
 111                         AppendGraph(0, clock, binary[1]);
 112                         AppendGraph(0, clock, binary[2]);
 113                         AppendGraph(0, clock, binary[3]);
 114
 115                         /* append parity bit */
 116                         AppendGraph(0, clock, binary[0] ^ binary[1] ^ binary[2] ^ binary[3]);
 117
 118                         /* keep track of column parity */
 119                         parity[0] ^= binary[0];
 120                         parity[1] ^= binary[1];
 121                         parity[2] ^= binary[2];
 122                         parity[3] ^= binary[3];
 123                 }
 124
 125                 /* parity columns */
 126                 AppendGraph(0, clock, parity[0]);
 127                 AppendGraph(0, clock, parity[1]);
 128                 AppendGraph(0, clock, parity[2]);
 129                 AppendGraph(0, clock, parity[3]);
 130
 131                 /* stop bit */
 132         AppendGraph(1, clock, 0);
 133
 134         CmdLFSim("0"); //240 start_gap.
 135         return 0;
 136 }
 137
 138 /* Function is equivalent of lf read + data samples + em410xread
 139  * looped until an EM410x tag is detected
 140  *
 141  * Why is CmdSamples("16000")?
 142  *  TBD: Auto-grow sample size based on detected sample rate.  IE: If the
 143  *       rate gets lower, then grow the number of samples
 144  *  Changed by martin, 4000 x 4 = 16000,
 145  *  see http://www.proxmark.org/forum/viewtopic.php?pid=7235#p7235
 146 */
 147 int CmdEM410xWatch(const char *Cmd)
 148 {
 149         do {
 150                 if (ukbhit()) {
 151                         printf("\naborted via keyboard!\n");
 152                         break;
 153                 }
 154
 155                 CmdLFRead("s");
 156                 getSamples("8201",true); //capture enough to get 2 complete preambles (4096*2+9)
 157         } while (!CmdEM410xRead(""));
 158
 159         return 0;
 160 }
 161
 162 //currently only supports manchester modulations
 163 int CmdEM410xWatchnSpoof(const char *Cmd)
 164 {
 165         CmdEM410xWatch(Cmd);
 166         PrintAndLog("# Replaying captured ID: %s",global_em410xId);
 167         CmdLFaskSim("");
 168         return 0;
 169 }
 170
 171 int CmdEM410xWrite(const char *Cmd)
 172 {
 173         uint64_t id = 0xFFFFFFFFFFFFFFFF; // invalid id value
 174         int card = 0xFF; // invalid card value
 175         uint32_t clock = 0; // invalid clock value
 176
 177         sscanf(Cmd, "%" PRIx64 " %d %d", &id, &card, &clock);
 178
 179         // Check ID
 180         if (id == 0xFFFFFFFFFFFFFFFF) {
 181                 PrintAndLog("Error! ID is required.\n");
 182                 return 0;
 183         }
 184         if (id >= 0x10000000000) {
 185                 PrintAndLog("Error! Given EM410x ID is longer than 40 bits.\n");
 186                 return 0;
 187         }
 188
 189         // Check Card
 190         if (card == 0xFF) {
 191                 PrintAndLog("Error! Card type required.\n");
 192                 return 0;
 193         }
 194         if (card < 0) {
 195                 PrintAndLog("Error! Bad card type selected.\n");
 196                 return 0;
 197         }
 198
 199         // Check Clock
 200                 // Default: 64
 201         if (clock == 0)
 202                 clock = 64;
 203
 204         // Allowed clock rates: 16, 32, 40 and 64
 205         if ((clock != 16) && (clock != 32) && (clock != 64) && (clock != 40)) {
 206                 PrintAndLog("Error! Clock rate %d not valid. Supported clock rates are 16, 32, 40 and 64.\n", clock);
 207                 return 0;
 208         }
 209
 210         if (card == 1) {
 211                 PrintAndLog("Writing %s tag with UID 0x%010" PRIx64 " (clock rate: %d)", "T55x7", id, clock);
 212                 // NOTE: We really should pass the clock in as a separate argument, but to
 213                 //   provide for backwards-compatibility for older firmware, and to avoid
 214                 //   having to add another argument to CMD_EM410X_WRITE_TAG, we just store
 215                 //   the clock rate in bits 8-15 of the card value
 216                 card = (card & 0xFF) | ((clock << 8) & 0xFF00);
 217         }       else if (card == 0) {
 218                 PrintAndLog("Writing %s tag with UID 0x%010" PRIx64, "T5555", id, clock);
 219                 card = (card & 0xFF) | ((clock << 8) & 0xFF00);
 220         } else {
 221                 PrintAndLog("Error! Bad card type selected.\n");
 222                 return 0;
 223         }
 224
 225         UsbCommand c = {CMD_EM410X_WRITE_TAG, {card, (uint32_t)(id >> 32), (uint32_t)id}};
 226         SendCommand(&c);
 227         return 0;
 228 }
 229
 230 bool EM_EndParityTest(uint8_t *BitStream, size_t size, uint8_t rows, uint8_t cols, uint8_t pType)
 231 {
 232         if (rows*cols>size) return false;
 233         uint8_t colP=0;
 234         //assume last col is a parity and do not test
 235         for (uint8_t colNum = 0; colNum < cols-1; colNum++) {
 236                 for (uint8_t rowNum = 0; rowNum < rows; rowNum++) {
 237                         colP ^= BitStream[(rowNum*cols)+colNum];
 238                 }
 239                 if (colP != pType) return false;
 240         }
 241         return true;
 242 }
 243
 244 bool EM_ByteParityTest(uint8_t *BitStream, size_t size, uint8_t rows, uint8_t cols, uint8_t pType)
 245 {
 246         if (rows*cols>size) return false;
 247         uint8_t rowP=0;
 248         //assume last row is a parity row and do not test
 249         for (uint8_t rowNum = 0; rowNum < rows-1; rowNum++) {
 250                 for (uint8_t colNum = 0; colNum < cols; colNum++) {
 251                         rowP ^= BitStream[(rowNum*cols)+colNum];
 252                 }
 253                 if (rowP != pType) return false;
 254         }
 255         return true;
 256 }
 257
 258 uint32_t OutputEM4x50_Block(uint8_t *BitStream, size_t size, bool verbose, bool pTest)
 259 {
 260         if (size<45) return 0;
 261         uint32_t code = bytebits_to_byte(BitStream,8);
 262         code = code<<8 | bytebits_to_byte(BitStream+9,8);
 263         code = code<<8 | bytebits_to_byte(BitStream+18,8);
 264         code = code<<8 | bytebits_to_byte(BitStream+27,8);
 265         if (verbose || g_debugMode){
 266                 for (uint8_t i = 0; i<5; i++){
 267                         if (i == 4) PrintAndLog(""); //parity byte spacer
 268                         PrintAndLog("%d%d%d%d%d%d%d%d %d -> 0x%02x",
 269                             BitStream[i*9],
 270                             BitStream[i*9+1],
 271                             BitStream[i*9+2],
 272                             BitStream[i*9+3],
 273                             BitStream[i*9+4],
 274                             BitStream[i*9+5],
 275                             BitStream[i*9+6],
 276                             BitStream[i*9+7],
 277                             BitStream[i*9+8],
 278                             bytebits_to_byte(BitStream+i*9,8)
 279                         );
 280                 }
 281                 if (pTest)
 282                         PrintAndLog("Parity Passed");
 283                 else
 284                         PrintAndLog("Parity Failed");
 285         }
 286         return code;
 287 }
 288 /* Read the transmitted data of an EM4x50 tag
 289  * Format:
 290  *
 291  *  XXXXXXXX [row parity bit (even)] <- 8 bits plus parity
 292  *  XXXXXXXX [row parity bit (even)] <- 8 bits plus parity
 293  *  XXXXXXXX [row parity bit (even)] <- 8 bits plus parity
 294  *  XXXXXXXX [row parity bit (even)] <- 8 bits plus parity
 295  *  CCCCCCCC                         <- column parity bits
 296  *  0                                <- stop bit
 297  *  LW                               <- Listen Window
 298  *
 299  * This pattern repeats for every block of data being transmitted.
 300  * Transmission starts with two Listen Windows (LW - a modulated
 301  * pattern of 320 cycles each (32/32/128/64/64)).
 302  *
 303  * Note that this data may or may not be the UID. It is whatever data
 304  * is stored in the blocks defined in the control word First and Last
 305  * Word Read values. UID is stored in block 32.
 306  */
 307  //completed by Marshmellow
 308 int EM4x50Read(const char *Cmd, bool verbose)
 309 {
 310         uint8_t fndClk[] = {8,16,32,40,50,64,128};
 311         int clk = 0;
 312         int invert = 0;
 313         int tol = 0;
 314         int i, j, startblock, skip, block, start, end, low, high, minClk;
 315         bool complete = false;
 316         int tmpbuff[MAX_GRAPH_TRACE_LEN / 64];
 317         uint32_t Code[6];
 318         char tmp[6];
 319         char tmp2[20];
 320         int phaseoff;
 321         high = low = 0;
 322         memset(tmpbuff, 0, MAX_GRAPH_TRACE_LEN / 64);
 323
 324         // get user entry if any
 325         sscanf(Cmd, "%i %i", &clk, &invert);
 326
 327         // save GraphBuffer - to restore it later
 328         save_restoreGB(1);
 329
 330         // first get high and low values
 331         for (i = 0; i < GraphTraceLen; i++) {
 332                 if (GraphBuffer[i] > high)
 333                         high = GraphBuffer[i];
 334                 else if (GraphBuffer[i] < low)
 335                         low = GraphBuffer[i];
 336         }
 337
 338         i = 0;
 339         j = 0;
 340         minClk = 255;
 341         // get to first full low to prime loop and skip incomplete first pulse
 342         while ((GraphBuffer[i] < high) && (i < GraphTraceLen))
 343                 ++i;
 344         while ((GraphBuffer[i] > low) && (i < GraphTraceLen))
 345                 ++i;
 346         skip = i;
 347
 348         // populate tmpbuff buffer with pulse lengths
 349         while (i < GraphTraceLen) {
 350                 // measure from low to low
 351                 while ((GraphBuffer[i] > low) && (i < GraphTraceLen))
 352                         ++i;
 353                 start= i;
 354                 while ((GraphBuffer[i] < high) && (i < GraphTraceLen))
 355                         ++i;
 356                 while ((GraphBuffer[i] > low) && (i < GraphTraceLen))
 357                         ++i;
 358                 if (j>=(MAX_GRAPH_TRACE_LEN/64)) {
 359                         break;
 360                 }
 361                 tmpbuff[j++]= i - start;
 362                 if (i-start < minClk && i < GraphTraceLen) {
 363                         minClk = i - start;
 364                 }
 365         }
 366         // set clock
 367         if (!clk) {
 368                 for (uint8_t clkCnt = 0; clkCnt<7; clkCnt++) {
 369                         tol = fndClk[clkCnt]/8;
 370                         if (minClk >= fndClk[clkCnt]-tol && minClk <= fndClk[clkCnt]+1) {
 371                                 clk=fndClk[clkCnt];
 372                                 break;
 373                         }
 374                 }
 375                 if (!clk) return 0;
 376         } else tol = clk/8;
 377
 378         // look for data start - should be 2 pairs of LW (pulses of clk*3,clk*2)
 379         start = -1;
 380         for (i= 0; i < j - 4 ; ++i) {
 381                 skip += tmpbuff[i];
 382                 if (tmpbuff[i] >= clk*3-tol && tmpbuff[i] <= clk*3+tol)  //3 clocks
 383                         if (tmpbuff[i+1] >= clk*2-tol && tmpbuff[i+1] <= clk*2+tol)  //2 clocks
 384                                 if (tmpbuff[i+2] >= clk*3-tol && tmpbuff[i+2] <= clk*3+tol) //3 clocks
 385                                         if (tmpbuff[i+3] >= clk-tol)  //1.5 to 2 clocks - depends on bit following
 386                                         {
 387                                                 start= i + 4;
 388                                                 break;
 389                                         }
 390         }
 391         startblock = i + 4;
 392
 393         // skip over the remainder of LW
 394         skip += tmpbuff[i+1] + tmpbuff[i+2] + clk;
 395         if (tmpbuff[i+3]>clk)
 396                 phaseoff = tmpbuff[i+3]-clk;
 397         else
 398                 phaseoff = 0;
 399         // now do it again to find the end
 400         end = skip;
 401         for (i += 3; i < j - 4 ; ++i) {
 402                 end += tmpbuff[i];
 403                 if (tmpbuff[i] >= clk*3-tol && tmpbuff[i] <= clk*3+tol)  //3 clocks
 404                         if (tmpbuff[i+1] >= clk*2-tol && tmpbuff[i+1] <= clk*2+tol)  //2 clocks
 405                                 if (tmpbuff[i+2] >= clk*3-tol && tmpbuff[i+2] <= clk*3+tol) //3 clocks
 406                                         if (tmpbuff[i+3] >= clk-tol)  //1.5 to 2 clocks - depends on bit following
 407                                         {
 408                                                 complete= true;
 409                                                 break;
 410                                         }
 411         }
 412         end = i;
 413         // report back
 414         if (verbose || g_debugMode) {
 415                 if (start >= 0) {
 416                         PrintAndLog("\nNote: one block = 50 bits (32 data, 12 parity, 6 marker)");
 417                 }       else {
 418                         PrintAndLog("No data found!, clock tried:%d",clk);
 419                         PrintAndLog("Try again with more samples.");
 420                         PrintAndLog("  or after a 'data askedge' command to clean up the read");
 421                         return 0;
 422                 }
 423         } else if (start < 0) return 0;
 424         start = skip;
 425         snprintf(tmp2, sizeof(tmp2),"%d %d 1000 %d", clk, invert, clk*47);
 426         // get rid of leading crap
 427         snprintf(tmp, sizeof(tmp), "%i", skip);
 428         CmdLtrim(tmp);
 429         bool pTest;
 430         bool AllPTest = true;
 431         // now work through remaining buffer printing out data blocks
 432         block = 0;
 433         i = startblock;
 434         while (block < 6) {
 435                 if (verbose || g_debugMode) PrintAndLog("\nBlock %i:", block);
 436                 skip = phaseoff;
 437
 438                 // look for LW before start of next block
 439                 for ( ; i < j - 4 ; ++i) {
 440                         skip += tmpbuff[i];
 441                         if (tmpbuff[i] >= clk*3-tol && tmpbuff[i] <= clk*3+tol)
 442                                 if (tmpbuff[i+1] >= clk-tol)
 443                                         break;
 444                 }
 445                 if (i >= j-4) break; //next LW not found
 446                 skip += clk;
 447                 if (tmpbuff[i+1]>clk)
 448                         phaseoff = tmpbuff[i+1]-clk;
 449                 else
 450                         phaseoff = 0;
 451                 i += 2;
 452                 if (ASKDemod(tmp2, false, false, 1) < 1) {
 453                         save_restoreGB(0);
 454                         return 0;
 455                 }
 456                 //set DemodBufferLen to just one block
 457                 DemodBufferLen = skip/clk;
 458                 //test parities
 459                 pTest = EM_ByteParityTest(DemodBuffer,DemodBufferLen,5,9,0);
 460                 pTest &= EM_EndParityTest(DemodBuffer,DemodBufferLen,5,9,0);
 461                 AllPTest &= pTest;
 462                 //get output
 463                 Code[block] = OutputEM4x50_Block(DemodBuffer,DemodBufferLen,verbose, pTest);
 464                 if (g_debugMode) PrintAndLog("\nskipping %d samples, bits:%d", skip, skip/clk);
 465                 //skip to start of next block
 466                 snprintf(tmp,sizeof(tmp),"%i",skip);
 467                 CmdLtrim(tmp);
 468                 block++;
 469                 if (i >= end) break; //in case chip doesn't output 6 blocks
 470         }
 471         //print full code:
 472         if (verbose || g_debugMode || AllPTest){
 473                 if (!complete) {
 474                         PrintAndLog("*** Warning!");
 475                         PrintAndLog("Partial data - no end found!");
 476                         PrintAndLog("Try again with more samples.");
 477                 }
 478                 PrintAndLog("Found data at sample: %i - using clock: %i", start, clk);
 479                 end = block;
 480                 for (block=0; block < end; block++){
 481                         PrintAndLog("Block %d: %08x",block,Code[block]);
 482                 }
 483                 if (AllPTest) {
 484                         PrintAndLog("Parities Passed");
 485                 } else {
 486                         PrintAndLog("Parities Failed");
 487                         PrintAndLog("Try cleaning the read samples with 'data askedge'");
 488                 }
 489         }
 490
 491         //restore GraphBuffer
 492         save_restoreGB(0);
 493         return (int)AllPTest;
 494 }
 495
 496 int CmdEM4x50Read(const char *Cmd)
 497 {
 498         return EM4x50Read(Cmd, true);
 499 }
 500
 501 int CmdReadWord(const char *Cmd)
 502 {
 503         int Word = -1; //default to invalid word
 504         UsbCommand c;
 505
 506         sscanf(Cmd, "%d", &Word);
 507
 508         if ( (Word > 15) | (Word < 0) ) {
 509                 PrintAndLog("Word must be between 0 and 15");
 510                 return 1;
 511         }
 512
 513         PrintAndLog("Reading word %d", Word);
 514
 515         c.cmd = CMD_EM4X_READ_WORD;
 516         c.d.asBytes[0] = 0x0; //Normal mode
 517         c.arg[0] = 0;
 518         c.arg[1] = Word;
 519         c.arg[2] = 0;
 520         SendCommand(&c);
 521         return 0;
 522 }
 523
 524 int CmdReadWordPWD(const char *Cmd)
 525 {
 526         int Word = -1; //default to invalid word
 527         int Password = 0xFFFFFFFF; //default to blank password
 528         UsbCommand c;
 529
 530         sscanf(Cmd, "%d %x", &Word, &Password);
 531
 532         if ( (Word > 15) | (Word < 0) ) {
 533                 PrintAndLog("Word must be between 0 and 15");
 534                 return 1;
 535         }
 536
 537         PrintAndLog("Reading word %d with password %08X", Word, Password);
 538
 539         c.cmd = CMD_EM4X_READ_WORD;
 540         c.d.asBytes[0] = 0x1; //Password mode
 541         c.arg[0] = 0;
 542         c.arg[1] = Word;
 543         c.arg[2] = Password;
 544         SendCommand(&c);
 545         return 0;
 546 }
 547
 548 int CmdWriteWord(const char *Cmd)
 549 {
 550         int Word = 16; //default to invalid block
 551         int Data = 0xFFFFFFFF; //default to blank data
 552         UsbCommand c;
 553
 554         sscanf(Cmd, "%x %d", &Data, &Word);
 555
 556         if (Word > 15) {
 557                 PrintAndLog("Word must be between 0 and 15");
 558                 return 1;
 559         }
 560
 561         PrintAndLog("Writing word %d with data %08X", Word, Data);
 562
 563         c.cmd = CMD_EM4X_WRITE_WORD;
 564         c.d.asBytes[0] = 0x0; //Normal mode
 565         c.arg[0] = Data;
 566         c.arg[1] = Word;
 567         c.arg[2] = 0;
 568         SendCommand(&c);
 569         return 0;
 570 }
 571
 572 int CmdWriteWordPWD(const char *Cmd)
 573 {
 574         int Word = 16; //default to invalid word
 575         int Data = 0xFFFFFFFF; //default to blank data
 576         int Password = 0xFFFFFFFF; //default to blank password
 577         UsbCommand c;
 578
 579         sscanf(Cmd, "%x %d %x", &Data, &Word, &Password);
 580
 581         if (Word > 15) {
 582                 PrintAndLog("Word must be between 0 and 15");
 583                 return 1;
 584         }
 585
 586         PrintAndLog("Writing word %d with data %08X and password %08X", Word, Data, Password);
 587
 588         c.cmd = CMD_EM4X_WRITE_WORD;
 589         c.d.asBytes[0] = 0x1; //Password mode
 590         c.arg[0] = Data;
 591         c.arg[1] = Word;
 592         c.arg[2] = Password;
 593         SendCommand(&c);
 594         return 0;
 595 }
 596
 597 static command_t CommandTable[] =
 598 {
 599         {"help", CmdHelp, 1, "This help"},
 600         {"em410xdemod", CmdEMdemodASK, 0, "[findone] -- Extract ID from EM410x tag (option 0 for continuous loop, 1 for only 1 tag)"},
 601         {"em410xread", CmdEM410xRead, 1, "[clock rate] -- Extract ID from EM410x tag in GraphBuffer"},
 602         {"em410xsim", CmdEM410xSim, 0, "<UID> -- Simulate EM410x tag"},
 603         {"em410xwatch", CmdEM410xWatch, 0, "['h'] -- Watches for EM410x 125/134 kHz tags (option 'h' for 134)"},
 604         {"em410xspoof", CmdEM410xWatchnSpoof, 0, "['h'] --- Watches for EM410x 125/134 kHz tags, and replays them. (option 'h' for 134)" },
 605         {"em410xwrite", CmdEM410xWrite, 0, "<UID> <'0' T5555> <'1' T55x7> [clock rate] -- Write EM410x UID to T5555(Q5) or T55x7 tag, optionally setting clock rate"},
 606         {"em4x50read", CmdEM4x50Read, 1, "Extract data from EM4x50 tag"},
 607         {"readword", CmdReadWord, 1, "<Word> -- Read EM4xxx word data"},
 608         {"readwordPWD", CmdReadWordPWD, 1, "<Word> <Password> -- Read EM4xxx word data in password mode"},
 609         {"writeword", CmdWriteWord, 1, "<Data> <Word> -- Write EM4xxx word data"},
 610         {"writewordPWD", CmdWriteWordPWD, 1, "<Data> <Word> <Password> -- Write EM4xxx word data in password mode"},
 611         {NULL, NULL, 0, NULL}
 612 };
 613
 614 int CmdLFEM4X(const char *Cmd)
 615 {
 616         CmdsParse(CommandTable, Cmd);
 617         return 0;
 618 }
 619
 620 int CmdHelp(const char *Cmd)
 621 {
 622         CmdsHelp(CommandTable);
 623         return 0;
 624 }