git.zerfleddert.de Git - proxmark3-svn/blob - client/cmdlft55xx.c

   1 //-----------------------------------------------------------------------------
   2 //
   3 // This code is licensed to you under the terms of the GNU GPL, version 2 or,
   4 // at your option, any later version. See the LICENSE.txt file for the text of
   5 // the license.
   6 //-----------------------------------------------------------------------------
   7 // Low frequency T55xx commands
   8 //-----------------------------------------------------------------------------
   9
  10 #include <stdio.h>
  11 #include <string.h>
  12 #include <inttypes.h>
  13 #include <ctype.h>
  14 #include <time.h>
  15 #include "proxmark3.h"
  16 #include "ui.h"
  17 #include "graph.h"
  18 #include "cmdmain.h"
  19 #include "cmdparser.h"
  20 #include "cmddata.h"
  21 #include "cmdlf.h"
  22 #include "cmdlft55xx.h"
  23 #include "util.h"
  24 #include "data.h"
  25 #include "lfdemod.h"
  26 #include "cmdhf14a.h" //for getTagInfo
  27 #include "protocols.h"
  28
  29 #define T55x7_CONFIGURATION_BLOCK 0x00
  30 #define T55x7_PAGE0 0x00
  31 #define T55x7_PAGE1 0x01
  32 //#define T55x7_PWD     0x00000010
  33 #define REGULAR_READ_MODE_BLOCK 0xFF
  34
  35 // Default configuration
  36 t55xx_conf_block_t config = { .modulation = DEMOD_ASK, .inverted = false, .offset = 0x00, .block0 = 0x00, .Q5 = false };
  37
  38 t55xx_conf_block_t Get_t55xx_Config(){
  39         return config;
  40 }
  41 void Set_t55xx_Config(t55xx_conf_block_t conf){
  42         config = conf;
  43 }
  44
  45 int usage_t55xx_config(){
  46         PrintAndLog("Usage: lf t55xx config [d <demodulation>] [i 1] [o <offset>] [Q5]");
  47         PrintAndLog("Options:");
  48         PrintAndLog("       h                        This help");
  49         PrintAndLog("       b <8|16|32|40|50|64|100|128>  Set bitrate");
  50         PrintAndLog("       d <FSK|FSK1|FSK1a|FSK2|FSK2a|ASK|PSK1|PSK2|NRZ|BI|BIa>  Set demodulation FSK / ASK / PSK / NRZ / Biphase / Biphase A");
  51         PrintAndLog("       i [1]                         Invert data signal, defaults to normal");
  52         PrintAndLog("       o [offset]                    Set offset, where data should start decode in bitstream");
  53         PrintAndLog("       Q5                            Set as Q5(T5555) chip instead of T55x7");
  54         PrintAndLog("       ST                            Set Sequence Terminator on");
  55         PrintAndLog("");
  56         PrintAndLog("Examples:");
  57         PrintAndLog("      lf t55xx config d FSK          - FSK demodulation");
  58         PrintAndLog("      lf t55xx config d FSK i 1      - FSK demodulation, inverse data");
  59         PrintAndLog("      lf t55xx config d FSK i 1 o 3  - FSK demodulation, inverse data, offset=3,start from position 3 to decode data");
  60         PrintAndLog("");
  61         return 0;
  62 }
  63 int usage_t55xx_read(){
  64         PrintAndLog("Usage:  lf t55xx read [b <block>] [p <password>] <override_safety> <page1>");
  65         PrintAndLog("Options:");
  66         PrintAndLog("     b <block>    - block number to read. Between 0-7");
  67         PrintAndLog("     p <password> - OPTIONAL password (8 hex characters)");
  68         PrintAndLog("     o            - OPTIONAL override safety check");
  69         PrintAndLog("     1            - OPTIONAL read Page 1 instead of Page 0");
  70         PrintAndLog("     ****WARNING****");
  71         PrintAndLog("     Use of read with password on a tag not configured for a pwd");
  72         PrintAndLog("     can damage the tag");
  73         PrintAndLog("");
  74         PrintAndLog("Examples:");
  75         PrintAndLog("      lf t55xx read b 0              - read data from block 0");
  76         PrintAndLog("      lf t55xx read b 0 p feedbeef   - read data from block 0 password feedbeef");
  77         PrintAndLog("      lf t55xx read b 0 p feedbeef o - read data from block 0 password feedbeef safety check");
  78         PrintAndLog("");
  79         return 0;
  80 }
  81 int usage_t55xx_write(){
  82         PrintAndLog("Usage:  lf t55xx write [b <block>] [d <data>] [p <password>] [1] [t]");
  83         PrintAndLog("Options:");
  84         PrintAndLog("     b <block>    - block number to write. Between 0-7");
  85         PrintAndLog("     d <data>     - 4 bytes of data to write (8 hex characters)");
  86         PrintAndLog("     p <password> - OPTIONAL password 4bytes (8 hex characters)");
  87         PrintAndLog("     1            - OPTIONAL write Page 1 instead of Page 0");
  88         PrintAndLog("     t            - OPTIONAL test mode write - ****DANGER****");
  89         PrintAndLog("");
  90         PrintAndLog("Examples:");
  91         PrintAndLog("      lf t55xx write b 3 d 11223344            - write 11223344 to block 3");
  92         PrintAndLog("      lf t55xx write b 3 d 11223344 p feedbeef - write 11223344 to block 3 password feedbeef");
  93         PrintAndLog("");
  94         return 0;
  95 }
  96 int usage_t55xx_trace() {
  97         PrintAndLog("Usage:  lf t55xx trace [1]");
  98         PrintAndLog("Options:");
  99         PrintAndLog("     [graph buffer data]  - if set, use Graphbuffer otherwise read data from tag.");
 100         PrintAndLog("");
 101         PrintAndLog("Examples:");
 102         PrintAndLog("      lf t55xx trace");
 103         PrintAndLog("      lf t55xx trace 1");
 104         PrintAndLog("");
 105         return 0;
 106 }
 107 int usage_t55xx_info() {
 108         PrintAndLog("Usage:  lf t55xx info [1]");
 109         PrintAndLog("Options:");
 110         PrintAndLog("     [graph buffer data]  - if set, use Graphbuffer otherwise read data from tag.");
 111         PrintAndLog("");
 112         PrintAndLog("Examples:");
 113         PrintAndLog("      lf t55xx info");
 114         PrintAndLog("      lf t55xx info 1");
 115         PrintAndLog("");
 116         return 0;
 117 }
 118 int usage_t55xx_dump(){
 119         PrintAndLog("Usage:  lf t55xx dump <password> [o]");
 120         PrintAndLog("Options:");
 121         PrintAndLog("     <password>  - OPTIONAL password 4bytes (8 hex symbols)");
 122         PrintAndLog("     o           - OPTIONAL override, force pwd read despite danger to card");
 123         PrintAndLog("");
 124         PrintAndLog("Examples:");
 125         PrintAndLog("      lf t55xx dump");
 126         PrintAndLog("      lf t55xx dump feedbeef o");
 127         PrintAndLog("");
 128         return 0;
 129 }
 130 int usage_t55xx_detect(){
 131         PrintAndLog("Usage:  lf t55xx detect [1] [p <password>]");
 132         PrintAndLog("Options:");
 133         PrintAndLog("     1             - if set, use Graphbuffer otherwise read data from tag.");
 134         PrintAndLog("     p <password>  - OPTIONAL password (8 hex characters)");
 135         PrintAndLog("");
 136         PrintAndLog("Examples:");
 137         PrintAndLog("      lf t55xx detect");
 138         PrintAndLog("      lf t55xx detect 1");
 139         PrintAndLog("      lf t55xx detect p 11223344");
 140         PrintAndLog("");
 141         return 0;
 142 }
 143 int usage_t55xx_detectP1(){
 144         PrintAndLog("Usage:  lf t55xx page1detect [1] [p <password>]");
 145         PrintAndLog("Options:");
 146         PrintAndLog("     1             - if set, use Graphbuffer otherwise read data from tag.");
 147         PrintAndLog("     p <password>  - OPTIONAL password (8 hex characters)");
 148         PrintAndLog("");
 149         PrintAndLog("Examples:");
 150         PrintAndLog("      lf t55xx page1detect");
 151         PrintAndLog("      lf t55xx page1detect 1");
 152         PrintAndLog("      lf t55xx page1detect p 11223344");
 153         PrintAndLog("");
 154         return 0;
 155 }
 156 int usage_t55xx_wakup(){
 157         PrintAndLog("Usage:  lf t55xx wakeup [h] <password>");
 158         PrintAndLog("This commands send the Answer-On-Request command and leaves the readerfield ON afterwards.");
 159         PrintAndLog("Options:");
 160         PrintAndLog("     h             - this help");
 161         PrintAndLog("     <password>  - [required] password 4bytes (8 hex symbols)");
 162         PrintAndLog("");
 163         PrintAndLog("Examples:");
 164                 PrintAndLog("      lf t55xx wakeup 11223344  - send wakeup password");
 165         return 0;
 166 }
 167 int usage_t55xx_bruteforce(){
 168         PrintAndLog("This command uses A) bruteforce to scan a number range");
 169         PrintAndLog("                  B) a dictionary attack");
 170         PrintAndLog("Usage: lf t55xx bruteforce <start password> <end password> [i <*.dic>]");
 171         PrintAndLog("       password must be 4 bytes (8 hex symbols)");
 172         PrintAndLog("Options:");
 173         PrintAndLog("     h           - this help");
 174         PrintAndLog("     <start_pwd> - 4 byte hex value to start pwd search at");
 175         PrintAndLog("     <end_pwd>   - 4 byte hex value to end pwd search at");
 176         PrintAndLog("     i <*.dic>   - loads a default keys dictionary file <*.dic>");
 177         PrintAndLog("");
 178         PrintAndLog("Examples:");
 179         PrintAndLog("       lf t55xx bruteforce aaaaaaaa bbbbbbbb");
 180         PrintAndLog("       lf t55xx bruteforce i default_pwd.dic");
 181         PrintAndLog("");
 182         return 0;
 183 }
 184 int usage_t55xx_wipe(){
 185         PrintAndLog("Usage:  lf t55xx wipe [h] [Q5]");
 186         PrintAndLog("This commands wipes a tag, fills blocks 1-7 with zeros and a default configuration block");
 187         PrintAndLog("Options:");
 188         PrintAndLog("     h   - this help");
 189         PrintAndLog("     Q5  - indicates to use the T5555 (Q5) default configuration block");
 190         PrintAndLog("");
 191         PrintAndLog("Examples:");
 192         PrintAndLog("      lf t55xx wipe    -  wipes a t55x7 tag,    config block 0x000880E0");
 193         PrintAndLog("      lf t55xx wipe Q5 -  wipes a t5555 Q5 tag, config block 0x6001F004");
 194         return 0;
 195 }
 196
 197
 198 static int CmdHelp(const char *Cmd);
 199
 200 void printT5xxHeader(uint8_t page){
 201         PrintAndLog("Reading Page %d:", page);
 202         PrintAndLog("blk | hex data | binary");
 203         PrintAndLog("----+----------+---------------------------------");
 204 }
 205
 206 int CmdT55xxSetConfig(const char *Cmd) {
 207
 208         uint8_t offset = 0;
 209         char modulation[5] = {0x00};
 210         char tmp = 0x00;
 211         uint8_t bitRate = 0;
 212         uint8_t rates[9] = {8,16,32,40,50,64,100,128,0};
 213         uint8_t cmdp = 0;
 214         bool errors = false;
 215         while(param_getchar(Cmd, cmdp) != 0x00 && !errors)
 216         {
 217                 tmp = param_getchar(Cmd, cmdp);
 218                 switch(tmp)
 219                 {
 220                 case 'h':
 221                 case 'H':
 222                         return usage_t55xx_config();
 223                 case 'b':
 224                         errors |= param_getdec(Cmd, cmdp+1, &bitRate);
 225                         if ( !errors){
 226                                 uint8_t i = 0;
 227                                 for (; i < 9; i++){
 228                                         if (rates[i]==bitRate) {
 229                                                 config.bitrate = i;
 230                                                 break;
 231                                         }
 232                                 }
 233                                 if (i==9) errors = true;
 234                         }
 235                         cmdp+=2;
 236                         break;
 237                 case 'd':
 238                         param_getstr(Cmd, cmdp+1, modulation);
 239                         cmdp += 2;
 240
 241                         if ( strcmp(modulation, "FSK" ) == 0) {
 242                                 config.modulation = DEMOD_FSK;
 243                         } else if ( strcmp(modulation, "FSK1" ) == 0) {
 244                                 config.modulation = DEMOD_FSK1;
 245                                 config.inverted=1;
 246                         } else if ( strcmp(modulation, "FSK1a" ) == 0) {
 247                                 config.modulation = DEMOD_FSK1a;
 248                                 config.inverted=0;
 249                         } else if ( strcmp(modulation, "FSK2" ) == 0) {
 250                                 config.modulation = DEMOD_FSK2;
 251                                 config.inverted=0;
 252                         } else if ( strcmp(modulation, "FSK2a" ) == 0) {
 253                                 config.modulation = DEMOD_FSK2a;
 254                                 config.inverted=1;
 255                         } else if ( strcmp(modulation, "ASK" ) == 0) {
 256                                 config.modulation = DEMOD_ASK;
 257                         } else if ( strcmp(modulation, "NRZ" ) == 0) {
 258                                 config.modulation = DEMOD_NRZ;
 259                         } else if ( strcmp(modulation, "PSK1" ) == 0) {
 260                                 config.modulation = DEMOD_PSK1;
 261                         } else if ( strcmp(modulation, "PSK2" ) == 0) {
 262                                 config.modulation = DEMOD_PSK2;
 263                         } else if ( strcmp(modulation, "PSK3" ) == 0) {
 264                                 config.modulation = DEMOD_PSK3;
 265                         } else if ( strcmp(modulation, "BIa" ) == 0) {
 266                                 config.modulation = DEMOD_BIa;
 267                                 config.inverted=1;
 268                         } else if ( strcmp(modulation, "BI" ) == 0) {
 269                                 config.modulation = DEMOD_BI;
 270                                 config.inverted=0;
 271                         } else {
 272                                 PrintAndLog("Unknown modulation '%s'", modulation);
 273                                 errors = true;
 274                         }
 275                         break;
 276                 case 'i':
 277                         config.inverted = param_getchar(Cmd,cmdp+1) == '1';
 278                         cmdp+=2;
 279                         break;
 280                 case 'o':
 281                         errors |= param_getdec(Cmd, cmdp+1, &offset);
 282                         if ( !errors )
 283                                 config.offset = offset;
 284                         cmdp+=2;
 285                         break;
 286                 case 'Q':
 287                 case 'q':
 288                         config.Q5 = true;
 289                         cmdp++;
 290                         break;
 291                 case 'S':
 292                 case 's':
 293                         config.ST = true;
 294                         cmdp++;
 295                         break;
 296                 default:
 297                         PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
 298                         errors = true;
 299                         break;
 300                 }
 301         }
 302
 303         // No args
 304         if (cmdp == 0) return printConfiguration( config );
 305
 306         //Validations
 307         if (errors) return usage_t55xx_config();
 308
 309         config.block0 = 0;
 310         return printConfiguration ( config );
 311 }
 312
 313 int T55xxReadBlock(uint8_t block, bool page1, bool usepwd, bool override, uint32_t password){
 314         //Password mode
 315         if ( usepwd ) {
 316                 // try reading the config block and verify that PWD bit is set before doing this!
 317                 if ( !override ) {
 318                         if ( !AquireData(T55x7_PAGE0, T55x7_CONFIGURATION_BLOCK, false, 0 ) ) return 0;
 319                         if ( !tryDetectModulation() ) {
 320                                 PrintAndLog("Safety Check: Could not detect if PWD bit is set in config block. Exits.");
 321                                 return 0;
 322                         } else {
 323                                 PrintAndLog("Safety Check: PWD bit is NOT set in config block. Reading without password...");
 324                                 usepwd = false;
 325                                 page1 = false;
 326                         }
 327                 } else {
 328                         PrintAndLog("Safety Check Overriden - proceeding despite risk");
 329                 }
 330         }
 331
 332         if (!AquireData(page1, block, usepwd, password) )       return 0;
 333         if (!DecodeT55xxBlock()) return 0;
 334
 335         char blk[10]={0};
 336         sprintf(blk,"%d", block);
 337         printT55xxBlock(blk);
 338         return 1;
 339 }
 340
 341 int CmdT55xxReadBlock(const char *Cmd) {
 342         uint8_t block = REGULAR_READ_MODE_BLOCK;
 343         uint32_t password = 0; //default to blank Block 7
 344         bool usepwd = false;
 345         bool override = false;
 346         bool page1 = false;
 347         bool errors = false;
 348         uint8_t cmdp = 0;
 349         while(param_getchar(Cmd, cmdp) != 0x00 && !errors) {
 350                 switch(param_getchar(Cmd, cmdp)) {
 351                 case 'h':
 352                 case 'H':
 353                         return usage_t55xx_read();
 354                 case 'b':
 355                 case 'B':
 356                         errors |= param_getdec(Cmd, cmdp+1, &block);
 357                         cmdp += 2;
 358                         break;
 359                 case 'o':
 360                 case 'O':
 361                         override = true;
 362                         cmdp++;
 363                         break;
 364                 case 'p':
 365                 case 'P':
 366                         password = param_get32ex(Cmd, cmdp+1, 0, 16);
 367                         usepwd = true;
 368                         cmdp += 2;
 369                         break;
 370                 case '1':
 371                         page1 = true;
 372                         cmdp++;
 373                         break;
 374                 default:
 375                         PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
 376                         errors = true;
 377                         break;
 378                 }
 379         }
 380         if (errors) return usage_t55xx_read();
 381
 382         if (block > 7 && block != REGULAR_READ_MODE_BLOCK       ) {
 383                 PrintAndLog("Block must be between 0 and 7");
 384                 return 0;
 385         }
 386
 387         printT5xxHeader(page1);
 388         return T55xxReadBlock(block, page1, usepwd, override, password);
 389 }
 390
 391 bool DecodeT55xxBlock(){
 392
 393         char buf[30] = {0x00};
 394         char *cmdStr = buf;
 395         int ans = 0;
 396         bool ST = config.ST;
 397         uint8_t bitRate[8] = {8,16,32,40,50,64,100,128};
 398         DemodBufferLen = 0x00;
 399
 400         switch( config.modulation ){
 401                 case DEMOD_FSK:
 402                         snprintf(cmdStr, sizeof(buf),"%d %d", bitRate[config.bitrate], config.inverted );
 403                         ans = FSKrawDemod(cmdStr, false);
 404                         break;
 405                 case DEMOD_FSK1:
 406                 case DEMOD_FSK1a:
 407                         snprintf(cmdStr, sizeof(buf),"%d %d 8 5", bitRate[config.bitrate], config.inverted );
 408                         ans = FSKrawDemod(cmdStr, false);
 409                         break;
 410                 case DEMOD_FSK2:
 411                 case DEMOD_FSK2a:
 412                         snprintf(cmdStr, sizeof(buf),"%d %d 10 8", bitRate[config.bitrate], config.inverted );
 413                         ans = FSKrawDemod(cmdStr, false);
 414                         break;
 415                 case DEMOD_ASK:
 416                         snprintf(cmdStr, sizeof(buf),"%d %d 1", bitRate[config.bitrate], config.inverted );
 417                         ans = ASKDemod_ext(cmdStr, false, false, 1, &ST);
 418                         break;
 419                 case DEMOD_PSK1:
 420                         // skip first 160 samples to allow antenna to settle in (psk gets inverted occasionally otherwise)
 421                         save_restoreGB(1);
 422                         CmdLtrim("160");
 423                         snprintf(cmdStr, sizeof(buf),"%d %d 6", bitRate[config.bitrate], config.inverted );
 424                         ans = PSKDemod(cmdStr, false);
 425                         //undo trim samples
 426                         save_restoreGB(0);
 427                         break;
 428                 case DEMOD_PSK2: //inverted won't affect this
 429                 case DEMOD_PSK3: //not fully implemented
 430                         // skip first 160 samples to allow antenna to settle in (psk gets inverted occasionally otherwise)
 431                         save_restoreGB(1);
 432                         CmdLtrim("160");
 433                         snprintf(cmdStr, sizeof(buf),"%d 0 6", bitRate[config.bitrate] );
 434                         ans = PSKDemod(cmdStr, false);
 435                         psk1TOpsk2(DemodBuffer, DemodBufferLen);
 436                         //undo trim samples
 437                         save_restoreGB(0);
 438                         break;
 439                 case DEMOD_NRZ:
 440                         snprintf(cmdStr, sizeof(buf),"%d %d 1", bitRate[config.bitrate], config.inverted );
 441                         ans = NRZrawDemod(cmdStr, false);
 442                         break;
 443                 case DEMOD_BI:
 444                 case DEMOD_BIa:
 445                         snprintf(cmdStr, sizeof(buf),"0 %d %d 1", bitRate[config.bitrate], config.inverted );
 446                         ans = ASKbiphaseDemod(cmdStr, false);
 447                         break;
 448                 default:
 449                         return false;
 450         }
 451         return (bool) ans;
 452 }
 453
 454 bool DecodeT5555TraceBlock() {
 455         DemodBufferLen = 0x00;
 456
 457         // According to datasheet. Always: RF/64, not inverted, Manchester
 458         return (bool) ASKDemod("64 0 1", false, false, 1);
 459 }
 460
 461 int CmdT55xxDetect(const char *Cmd){
 462         bool errors = false;
 463         bool useGB = false;
 464         bool usepwd = false;
 465         uint32_t password = 0;
 466         uint8_t cmdp = 0;
 467
 468         while(param_getchar(Cmd, cmdp) != 0x00 && !errors) {
 469                 switch(param_getchar(Cmd, cmdp)) {
 470                 case 'h':
 471                 case 'H':
 472                         return usage_t55xx_detect();
 473                 case 'p':
 474                 case 'P':
 475                         password = param_get32ex(Cmd, cmdp+1, 0, 16);
 476                         usepwd = true;
 477                         cmdp += 2;
 478                         break;
 479                 case '1':
 480                         // use Graphbuffer data
 481                         useGB = true;
 482                         cmdp++;
 483                         break;
 484                 default:
 485                         PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
 486                         errors = true;
 487                         break;
 488                 }
 489         }
 490         if (errors) return usage_t55xx_detect();
 491
 492         if ( !useGB) {
 493                 if ( !AquireData(T55x7_PAGE0, T55x7_CONFIGURATION_BLOCK, usepwd, password) )
 494                         return 0;
 495         }
 496
 497         if ( !tryDetectModulation() )
 498                 PrintAndLog("Could not detect modulation automatically. Try setting it manually with \'lf t55xx config\'");
 499
 500         return 1;
 501 }
 502
 503 // detect configuration?
 504 bool tryDetectModulation(){
 505         uint8_t hits = 0;
 506         t55xx_conf_block_t tests[15];
 507         int bitRate=0;
 508         uint8_t fc1 = 0, fc2 = 0, ans = 0;
 509         int clk=0;
 510         ans = fskClocks(&fc1, &fc2, (uint8_t *)&clk, false);
 511         if (ans && ((fc1==10 && fc2==8) || (fc1==8 && fc2==5))) {
 512                 if ( FSKrawDemod("0 0", false) && test(DEMOD_FSK, &tests[hits].offset, &bitRate, clk, &tests[hits].Q5)) {
 513                         tests[hits].modulation = DEMOD_FSK;
 514                         if (fc1==8 && fc2 == 5)
 515                                 tests[hits].modulation = DEMOD_FSK1a;
 516                         else if (fc1==10 && fc2 == 8)
 517                                 tests[hits].modulation = DEMOD_FSK2;
 518                         tests[hits].bitrate = bitRate;
 519                         tests[hits].inverted = false;
 520                         tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
 521                         tests[hits].ST = false;
 522                         ++hits;
 523                 }
 524                 if ( FSKrawDemod("0 1", false) && test(DEMOD_FSK, &tests[hits].offset, &bitRate, clk, &tests[hits].Q5)) {
 525                         tests[hits].modulation = DEMOD_FSK;
 526                         if (fc1 == 8 && fc2 == 5)
 527                                 tests[hits].modulation = DEMOD_FSK1;
 528                         else if (fc1 == 10 && fc2 == 8)
 529                                 tests[hits].modulation = DEMOD_FSK2a;
 530                         tests[hits].bitrate = bitRate;
 531                         tests[hits].inverted = true;
 532                         tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
 533                         tests[hits].ST = false;
 534                         ++hits;
 535                 }
 536         } else {
 537                 clk = GetAskClock("", false, false);
 538                 if (clk>0) {
 539                         tests[hits].ST = true;
 540                         if ( ASKDemod_ext("0 0 1", false, false, 1, &tests[hits].ST) && test(DEMOD_ASK, &tests[hits].offset, &bitRate, clk, &tests[hits].Q5)) {
 541                                 tests[hits].modulation = DEMOD_ASK;
 542                                 tests[hits].bitrate = bitRate;
 543                                 tests[hits].inverted = false;
 544                                 tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
 545                                 ++hits;
 546                         }
 547                         tests[hits].ST = true;
 548                         if ( ASKDemod_ext("0 1 1", false, false, 1, &tests[hits].ST)  && test(DEMOD_ASK, &tests[hits].offset, &bitRate, clk, &tests[hits].Q5)) {
 549                                 tests[hits].modulation = DEMOD_ASK;
 550                                 tests[hits].bitrate = bitRate;
 551                                 tests[hits].inverted = true;
 552                                 tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
 553                                 ++hits;
 554                         }
 555                         if ( ASKbiphaseDemod("0 0 0 2", false) && test(DEMOD_BI, &tests[hits].offset, &bitRate, clk, &tests[hits].Q5) ) {
 556                                 tests[hits].modulation = DEMOD_BI;
 557                                 tests[hits].bitrate = bitRate;
 558                                 tests[hits].inverted = false;
 559                                 tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
 560                                 tests[hits].ST = false;
 561                                 ++hits;
 562                         }
 563                         if ( ASKbiphaseDemod("0 0 1 2", false) && test(DEMOD_BIa, &tests[hits].offset, &bitRate, clk, &tests[hits].Q5) ) {
 564                                 tests[hits].modulation = DEMOD_BIa;
 565                                 tests[hits].bitrate = bitRate;
 566                                 tests[hits].inverted = true;
 567                                 tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
 568                                 tests[hits].ST = false;
 569                                 ++hits;
 570                         }
 571                 }
 572                 clk = GetNrzClock("", false, false);
 573                 if (clk>0) {
 574                         if ( NRZrawDemod("0 0 1", false)  && test(DEMOD_NRZ, &tests[hits].offset, &bitRate, clk, &tests[hits].Q5)) {
 575                                 tests[hits].modulation = DEMOD_NRZ;
 576                                 tests[hits].bitrate = bitRate;
 577                                 tests[hits].inverted = false;
 578                                 tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
 579                                 tests[hits].ST = false;
 580                                 ++hits;
 581                         }
 582
 583                         if ( NRZrawDemod("0 1 1", false)  && test(DEMOD_NRZ, &tests[hits].offset, &bitRate, clk, &tests[hits].Q5)) {
 584                                 tests[hits].modulation = DEMOD_NRZ;
 585                                 tests[hits].bitrate = bitRate;
 586                                 tests[hits].inverted = true;
 587                                 tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
 588                                 tests[hits].ST = false;
 589                                 ++hits;
 590                         }
 591                 }
 592
 593                 clk = GetPskClock("", false, false);
 594                 if (clk>0) {
 595                         // allow undo
 596                         save_restoreGB(1);
 597                         // skip first 160 samples to allow antenna to settle in (psk gets inverted occasionally otherwise)
 598                         CmdLtrim("160");
 599                         if ( PSKDemod("0 0 6", false) && test(DEMOD_PSK1, &tests[hits].offset, &bitRate, clk, &tests[hits].Q5)) {
 600                                 tests[hits].modulation = DEMOD_PSK1;
 601                                 tests[hits].bitrate = bitRate;
 602                                 tests[hits].inverted = false;
 603                                 tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
 604                                 tests[hits].ST = false;
 605                                 ++hits;
 606                         }
 607                         if ( PSKDemod("0 1 6", false) && test(DEMOD_PSK1, &tests[hits].offset, &bitRate, clk, &tests[hits].Q5)) {
 608                                 tests[hits].modulation = DEMOD_PSK1;
 609                                 tests[hits].bitrate = bitRate;
 610                                 tests[hits].inverted = true;
 611                                 tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
 612                                 tests[hits].ST = false;
 613                                 ++hits;
 614                         }
 615                         // PSK2 - needs a call to psk1TOpsk2.
 616                         if ( PSKDemod("0 0 6", false)) {
 617                                 psk1TOpsk2(DemodBuffer, DemodBufferLen);
 618                                 if (test(DEMOD_PSK2, &tests[hits].offset, &bitRate, clk, &tests[hits].Q5)){
 619                                         tests[hits].modulation = DEMOD_PSK2;
 620                                         tests[hits].bitrate = bitRate;
 621                                         tests[hits].inverted = false;
 622                                         tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
 623                                         tests[hits].ST = false;
 624                                         ++hits;
 625                                 }
 626                         } // inverse waves does not affect this demod
 627                         // PSK3 - needs a call to psk1TOpsk2.
 628                         if ( PSKDemod("0 0 6", false)) {
 629                                 psk1TOpsk2(DemodBuffer, DemodBufferLen);
 630                                 if (test(DEMOD_PSK3, &tests[hits].offset, &bitRate, clk, &tests[hits].Q5)){
 631                                         tests[hits].modulation = DEMOD_PSK3;
 632                                         tests[hits].bitrate = bitRate;
 633                                         tests[hits].inverted = false;
 634                                         tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
 635                                         tests[hits].ST = false;
 636                                         ++hits;
 637                                 }
 638                         } // inverse waves does not affect this demod
 639                         //undo trim samples
 640                         save_restoreGB(0);
 641                 }
 642         }
 643         if ( hits == 1) {
 644                 config.modulation = tests[0].modulation;
 645                 config.bitrate = tests[0].bitrate;
 646                 config.inverted = tests[0].inverted;
 647                 config.offset = tests[0].offset;
 648                 config.block0 = tests[0].block0;
 649                 config.Q5 = tests[0].Q5;
 650                 config.ST = tests[0].ST;
 651                 printConfiguration( config );
 652                 return true;
 653         }
 654
 655         if ( hits > 1) {
 656                 PrintAndLog("Found [%d] possible matches for modulation.",hits);
 657                 for(int i=0; i<hits; ++i){
 658                         PrintAndLog("--[%d]---------------", i+1);
 659                         printConfiguration( tests[i] );
 660                 }
 661         }
 662         return false;
 663 }
 664
 665 bool testModulation(uint8_t mode, uint8_t modread){
 666         switch( mode ){
 667                 case DEMOD_FSK:
 668                         if (modread >= DEMOD_FSK1 && modread <= DEMOD_FSK2a) return true;
 669                         break;
 670                 case DEMOD_ASK:
 671                         if (modread == DEMOD_ASK) return true;
 672                         break;
 673                 case DEMOD_PSK1:
 674                         if (modread == DEMOD_PSK1) return true;
 675                         break;
 676                 case DEMOD_PSK2:
 677                         if (modread == DEMOD_PSK2) return true;
 678                         break;
 679                 case DEMOD_PSK3:
 680                         if (modread == DEMOD_PSK3) return true;
 681                         break;
 682                 case DEMOD_NRZ:
 683                         if (modread == DEMOD_NRZ) return true;
 684                         break;
 685                 case DEMOD_BI:
 686                         if (modread == DEMOD_BI) return true;
 687                         break;
 688                 case DEMOD_BIa:
 689                         if (modread == DEMOD_BIa) return true;
 690                         break;
 691                 default:
 692                         return false;
 693         }
 694         return false;
 695 }
 696
 697 bool testQ5Modulation(uint8_t   mode, uint8_t   modread){
 698         switch( mode ){
 699                 case DEMOD_FSK:
 700                         if (modread >= 4 && modread <= 5) return true;
 701                         break;
 702                 case DEMOD_ASK:
 703                         if (modread == 0) return true;
 704                         break;
 705                 case DEMOD_PSK1:
 706                         if (modread == 1) return true;
 707                         break;
 708                 case DEMOD_PSK2:
 709                         if (modread == 2) return true;
 710                         break;
 711                 case DEMOD_PSK3:
 712                         if (modread == 3) return true;
 713                         break;
 714                 case DEMOD_NRZ:
 715                         if (modread == 7) return true;
 716                         break;
 717                 case DEMOD_BI:
 718                         if (modread == 6) return true;
 719                         break;
 720                 default:
 721                         return false;
 722         }
 723         return false;
 724 }
 725
 726 int convertQ5bitRate(uint8_t bitRateRead) {
 727         uint8_t expected[] = {8, 16, 32, 40, 50, 64, 100, 128};
 728         for (int i=0; i<8; i++)
 729                 if (expected[i] == bitRateRead)
 730                         return i;
 731
 732         return -1;
 733 }
 734
 735 bool testQ5(uint8_t mode, uint8_t *offset, int *fndBitRate, uint8_t     clk){
 736
 737         if ( DemodBufferLen < 64 ) return false;
 738         uint8_t si = 0;
 739         for (uint8_t idx = 28; idx < 64; idx++){
 740                 si = idx;
 741                 if ( PackBits(si, 28, DemodBuffer) == 0x00 ) continue;
 742
 743                 uint8_t safer     = PackBits(si, 4, DemodBuffer); si += 4;     //master key
 744                 uint8_t resv      = PackBits(si, 8, DemodBuffer); si += 8;
 745                 // 2nibble must be zeroed.
 746                 if (safer != 0x6 && safer != 0x9) continue;
 747                 if ( resv > 0x00) continue;
 748                 //uint8_t       pageSel   = PackBits(si, 1, DemodBuffer); si += 1;
 749                 //uint8_t fastWrite = PackBits(si, 1, DemodBuffer); si += 1;
 750                 si += 1+1;
 751                 int bitRate       = PackBits(si, 6, DemodBuffer)*2 + 2; si += 6;     //bit rate
 752                 if (bitRate > 128 || bitRate < 8) continue;
 753
 754                 //uint8_t AOR       = PackBits(si, 1, DemodBuffer); si += 1;
 755                 //uint8_t PWD       = PackBits(si, 1, DemodBuffer); si += 1;
 756                 //uint8_t pskcr     = PackBits(si, 2, DemodBuffer); si += 2;  //could check psk cr
 757                 //uint8_t inverse   = PackBits(si, 1, DemodBuffer); si += 1;
 758                 si += 1+1+2+1;
 759                 uint8_t modread   = PackBits(si, 3, DemodBuffer); si += 3;
 760                 uint8_t maxBlk    = PackBits(si, 3, DemodBuffer); si += 3;
 761                 //uint8_t ST        = PackBits(si, 1, DemodBuffer); si += 1;
 762                 if (maxBlk == 0) continue;
 763                 //test modulation
 764                 if (!testQ5Modulation(mode, modread)) continue;
 765                 if (bitRate != clk) continue;
 766                 *fndBitRate = convertQ5bitRate(bitRate);
 767                 if (*fndBitRate < 0) continue;
 768                 *offset = idx;
 769
 770                 return true;
 771         }
 772         return false;
 773 }
 774
 775 bool testBitRate(uint8_t readRate, uint8_t clk){
 776         uint8_t expected[] = {8, 16, 32, 40, 50, 64, 100, 128};
 777         if (expected[readRate] == clk)
 778                 return true;
 779
 780         return false;
 781 }
 782
 783 bool test(uint8_t mode, uint8_t *offset, int *fndBitRate, uint8_t clk, bool *Q5){
 784
 785         if ( DemodBufferLen < 64 ) return false;
 786         uint8_t si = 0;
 787         for (uint8_t idx = 28; idx < 64; idx++){
 788                 si = idx;
 789                 if ( PackBits(si, 28, DemodBuffer) == 0x00 ) continue;
 790
 791                 uint8_t safer    = PackBits(si, 4, DemodBuffer); si += 4;     //master key
 792                 uint8_t resv     = PackBits(si, 4, DemodBuffer); si += 4;     //was 7 & +=7+3 //should be only 4 bits if extended mode
 793                 // 2nibble must be zeroed.
 794                 // moved test to here, since this gets most faults first.
 795                 if ( resv > 0x00) continue;
 796
 797                 int bitRate      = PackBits(si, 6, DemodBuffer); si += 6;     //bit rate (includes extended mode part of rate)
 798                 uint8_t extend   = PackBits(si, 1, DemodBuffer); si += 1;     //bit 15 extended mode
 799                 uint8_t modread  = PackBits(si, 5, DemodBuffer); si += 5+2+1;
 800                 //uint8_t pskcr   = PackBits(si, 2, DemodBuffer); si += 2+1;  //could check psk cr
 801                 //uint8_t nml01    = PackBits(si, 1, DemodBuffer); si += 1+5;   //bit 24, 30, 31 could be tested for 0 if not extended mode
 802                 //uint8_t nml02    = PackBits(si, 2, DemodBuffer); si += 2;
 803
 804                 //if extended mode
 805                 bool extMode =( (safer == 0x6 || safer == 0x9) && extend) ? true : false;
 806
 807                 if (!extMode) {
 808                         if (bitRate > 7) continue;
 809                         if (!testBitRate(bitRate, clk)) continue;
 810                 } else { //extended mode bitrate = same function to calc bitrate as em4x05
 811                         if (EM4x05_GET_BITRATE(bitRate) != clk) continue;
 812                 }
 813                 //test modulation
 814                 if (!testModulation(mode, modread)) continue;
 815                 *fndBitRate = bitRate;
 816                 *offset = idx;
 817                 *Q5 = false;
 818                 return true;
 819         }
 820         if (testQ5(mode, offset, fndBitRate, clk)) {
 821                 *Q5 = true;
 822                 return true;
 823         }
 824         return false;
 825 }
 826
 827 void printT55xxBlock(const char *blockNum){
 828
 829         uint8_t i = config.offset;
 830         uint8_t endpos = 32 + i;
 831         uint32_t blockData = 0;
 832         uint8_t bits[64] = {0x00};
 833
 834         if ( !DemodBufferLen) return;
 835
 836         if ( endpos > DemodBufferLen){
 837                 PrintAndLog("The configured offset %d is too big. Possible offset: %d)", i, DemodBufferLen-32);
 838                 return;
 839         }
 840
 841         for (; i < endpos; ++i)
 842                 bits[i - config.offset]=DemodBuffer[i];
 843
 844         blockData = PackBits(0, 32, bits);
 845
 846         PrintAndLog("  %s | %08X | %s", blockNum, blockData, sprint_bin(bits,32));
 847 }
 848
 849 int special(const char *Cmd) {
 850         uint32_t blockData = 0;
 851         uint8_t bits[32] = {0x00};
 852
 853         PrintAndLog("OFFSET | DATA       | BINARY");
 854         PrintAndLog("----------------------------------------------------");
 855         int i,j = 0;
 856         for (; j < 64; ++j){
 857
 858                 for (i = 0; i < 32; ++i)
 859                         bits[i]=DemodBuffer[j+i];
 860
 861                 blockData = PackBits(0, 32, bits);
 862
 863                 PrintAndLog("    %02d | 0x%08X | %s",j , blockData, sprint_bin(bits,32));
 864         }
 865         return 0;
 866 }
 867
 868 int printConfiguration( t55xx_conf_block_t b){
 869         PrintAndLog("Chip Type  : %s", (b.Q5) ? "T5555(Q5)" : "T55x7");
 870         PrintAndLog("Modulation : %s", GetSelectedModulationStr(b.modulation) );
 871         PrintAndLog("Bit Rate   : %s", GetBitRateStr(b.bitrate, (b.block0 & T55x7_X_MODE)) );
 872         PrintAndLog("Inverted   : %s", (b.inverted) ? "Yes" : "No" );
 873         PrintAndLog("Offset     : %d", b.offset);
 874         PrintAndLog("Seq. Term. : %s", (b.ST) ? "Yes" : "No" );
 875         PrintAndLog("Block0     : 0x%08X", b.block0);
 876         PrintAndLog("");
 877         return 0;
 878 }
 879
 880 int CmdT55xxWakeUp(const char *Cmd) {
 881         uint32_t password = 0;
 882         if ( strlen(Cmd) <= 0 ) return usage_t55xx_wakup();
 883         char cmdp = param_getchar(Cmd, 0);
 884         if ( cmdp == 'h' || cmdp == 'H') return usage_t55xx_wakup();
 885
 886         password = param_get32ex(Cmd, 0, 0, 16);
 887
 888         UsbCommand c = {CMD_T55XX_WAKEUP, {password, 0, 0}};
 889         clearCommandBuffer();
 890         SendCommand(&c);
 891         PrintAndLog("Wake up command sent. Try read now");
 892         return 0;
 893 }
 894
 895 int CmdT55xxWriteBlock(const char *Cmd) {
 896         uint8_t block = 0xFF; //default to invalid block
 897         uint32_t data = 0; //default to blank Block
 898         uint32_t password = 0; //default to blank Block 7
 899         bool usepwd = false;
 900         bool page1 = false;
 901         bool gotdata = false;
 902         bool testMode = false;
 903         bool errors = false;
 904         uint8_t cmdp = 0;
 905         while(param_getchar(Cmd, cmdp) != 0x00 && !errors) {
 906                 switch(param_getchar(Cmd, cmdp)) {
 907                 case 'h':
 908                 case 'H':
 909                         return usage_t55xx_write();
 910                 case 'b':
 911                 case 'B':
 912                         errors |= param_getdec(Cmd, cmdp+1, &block);
 913                         cmdp += 2;
 914                         break;
 915                 case 'd':
 916                 case 'D':
 917                         data = param_get32ex(Cmd, cmdp+1, 0, 16);
 918                         gotdata = true;
 919                         cmdp += 2;
 920                         break;
 921                 case 'p':
 922                 case 'P':
 923                         password = param_get32ex(Cmd, cmdp+1, 0, 16);
 924                         usepwd = true;
 925                         cmdp += 2;
 926                         break;
 927                 case 't':
 928                 case 'T':
 929                         testMode = true;
 930                         cmdp++;
 931                         break;
 932                 case '1':
 933                         page1 = true;
 934                         cmdp++;
 935                         break;
 936                 default:
 937                         PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
 938                         errors = true;
 939                         break;
 940                 }
 941         }
 942         if (errors || !gotdata) return usage_t55xx_write();
 943
 944         if (block > 7) {
 945                 PrintAndLog("Block number must be between 0 and 7");
 946                 return 0;
 947         }
 948
 949         UsbCommand c = {CMD_T55XX_WRITE_BLOCK, {data, block, 0}};
 950         UsbCommand resp;
 951         c.d.asBytes[0] = (page1) ? 0x2 : 0;
 952         c.d.asBytes[0] |= (testMode) ? 0x4 : 0;
 953
 954         char pwdStr[16] = {0};
 955         snprintf(pwdStr, sizeof(pwdStr), "pwd: 0x%08X", password);
 956
 957         PrintAndLog("Writing page %d  block: %02d  data: 0x%08X %s", page1, block, data,  (usepwd) ? pwdStr : "" );
 958
 959         //Password mode
 960         if (usepwd) {
 961                 c.arg[2] = password;
 962                 c.d.asBytes[0] |= 0x1;
 963         }
 964         clearCommandBuffer();
 965         SendCommand(&c);
 966         if (!WaitForResponseTimeout(CMD_ACK, &resp, 1000)){
 967                 PrintAndLog("Error occurred, device did not ACK write operation. (May be due to old firmware)");
 968                 return 0;
 969         }
 970         return 1;
 971 }
 972
 973 int CmdT55xxReadTrace(const char *Cmd) {
 974         char cmdp = param_getchar(Cmd, 0);
 975         bool pwdmode = false;
 976         uint32_t password = 0;
 977         if (strlen(Cmd) > 1 || cmdp == 'h' || cmdp == 'H')
 978                 return usage_t55xx_trace();
 979
 980         if (strlen(Cmd)==0)
 981                 if ( !AquireData( T55x7_PAGE1, REGULAR_READ_MODE_BLOCK, pwdmode, password ) )
 982                         return 0;
 983
 984         if ( config.Q5 ) {
 985                 if (!DecodeT5555TraceBlock()) return 0;
 986         } else {
 987                 if (!DecodeT55xxBlock()) return 0;
 988         }
 989
 990         if ( !DemodBufferLen ) return 0;
 991
 992         RepaintGraphWindow();
 993         uint8_t repeat = (config.offset > 5) ? 32 : 0;
 994
 995         uint8_t si = config.offset+repeat;
 996         uint32_t bl1     = PackBits(si, 32, DemodBuffer);
 997         uint32_t bl2     = PackBits(si+32, 32, DemodBuffer);
 998
 999         if (config.Q5) {
1000                 uint32_t hdr = PackBits(si, 9,  DemodBuffer); si += 9;
1001
1002                 if (hdr != 0x1FF) {
1003                         PrintAndLog("Invalid Q5 Trace data header (expected 0x1FF, found %X)", hdr);
1004                         return 0;
1005                 }
1006
1007                 t5555_tracedata_t data = {.bl1 = bl1, .bl2 = bl2, .icr = 0, .lotidc = '?', .lotid = 0, .wafer = 0, .dw =0};
1008
1009                 data.icr     = PackBits(si, 2,  DemodBuffer); si += 2;
1010                 data.lotidc  = 'Z' - PackBits(si, 2,  DemodBuffer); si += 3;
1011
1012                 data.lotid   = PackBits(si, 4,  DemodBuffer); si += 5;
1013                 data.lotid <<= 4;
1014                 data.lotid  |= PackBits(si, 4,  DemodBuffer); si += 5;
1015                 data.lotid <<= 4;
1016                 data.lotid  |= PackBits(si, 4,  DemodBuffer); si += 5;
1017                 data.lotid <<= 4;
1018                 data.lotid  |= PackBits(si, 4,  DemodBuffer); si += 5;
1019                 data.lotid <<= 1;
1020                 data.lotid  |= PackBits(si, 1,  DemodBuffer); si += 1;
1021
1022                 data.wafer   = PackBits(si, 3,  DemodBuffer); si += 4;
1023                 data.wafer <<= 2;
1024                 data.wafer  |= PackBits(si, 2,  DemodBuffer); si += 2;
1025
1026                 data.dw      = PackBits(si, 2,  DemodBuffer); si += 3;
1027                 data.dw    <<= 4;
1028                 data.dw     |= PackBits(si, 4,  DemodBuffer); si += 5;
1029                 data.dw    <<= 4;
1030                 data.dw     |= PackBits(si, 4,  DemodBuffer); si += 5;
1031                 data.dw    <<= 4;
1032                 data.dw     |= PackBits(si, 4,  DemodBuffer); si += 5;
1033
1034                 printT5555Trace(data, repeat);
1035
1036         } else {
1037
1038                 t55x7_tracedata_t data = {.bl1 = bl1, .bl2 = bl2, .acl = 0, .mfc = 0, .cid = 0, .year = 0, .quarter = 0, .icr = 0,  .lotid = 0, .wafer = 0, .dw = 0};
1039
1040                 data.acl = PackBits(si, 8,  DemodBuffer); si += 8;
1041                 if ( data.acl != 0xE0 ) {
1042                         PrintAndLog("The modulation is most likely wrong since the ACL is not 0xE0. ");
1043                         return 0;
1044                 }
1045
1046                 data.mfc     = PackBits(si, 8,  DemodBuffer); si += 8;
1047                 data.cid     = PackBits(si, 5,  DemodBuffer); si += 5;
1048                 data.icr     = PackBits(si, 3,  DemodBuffer); si += 3;
1049                 data.year    = PackBits(si, 4,  DemodBuffer); si += 4;
1050                 data.quarter = PackBits(si, 2,  DemodBuffer); si += 2;
1051                 data.lotid   = PackBits(si, 14, DemodBuffer); si += 14;
1052                 data.wafer   = PackBits(si, 5,  DemodBuffer); si += 5;
1053                 data.dw      = PackBits(si, 15, DemodBuffer);
1054
1055                 time_t t = time(NULL);
1056                 struct tm tm = *localtime(&t);
1057                 if ( data.year > tm.tm_year-110)
1058                         data.year += 2000;
1059                 else
1060                         data.year += 2010;
1061
1062                 printT55x7Trace(data, repeat);
1063         }
1064         return 0;
1065 }
1066
1067 void printT55x7Trace( t55x7_tracedata_t data, uint8_t repeat ){
1068         PrintAndLog("-- T55x7 Trace Information ----------------------------------");
1069         PrintAndLog("-------------------------------------------------------------");
1070         PrintAndLog(" ACL Allocation class (ISO/IEC 15963-1)  : 0x%02X (%d)", data.acl, data.acl);
1071         PrintAndLog(" MFC Manufacturer ID (ISO/IEC 7816-6)    : 0x%02X (%d) - %s", data.mfc, data.mfc, getTagInfo(data.mfc));
1072         PrintAndLog(" CID                                     : 0x%02X (%d) - %s", data.cid, data.cid, GetModelStrFromCID(data.cid));
1073         PrintAndLog(" ICR IC Revision                         : %d", data.icr );
1074         PrintAndLog(" Manufactured");
1075         PrintAndLog("     Year/Quarter : %d/%d", data.year, data.quarter);
1076         PrintAndLog("     Lot ID       : %d", data.lotid );
1077         PrintAndLog("     Wafer number : %d", data.wafer);
1078         PrintAndLog("     Die Number   : %d", data.dw);
1079         PrintAndLog("-------------------------------------------------------------");
1080         PrintAndLog(" Raw Data - Page 1");
1081         PrintAndLog("     Block 1  : 0x%08X  %s", data.bl1, sprint_bin(DemodBuffer+config.offset+repeat,32) );
1082         PrintAndLog("     Block 2  : 0x%08X  %s", data.bl2, sprint_bin(DemodBuffer+config.offset+repeat+32,32) );
1083         PrintAndLog("-------------------------------------------------------------");
1084
1085         /*
1086         TRACE - BLOCK O
1087                 Bits    Definition                                                              HEX
1088                 1-8             ACL Allocation class (ISO/IEC 15963-1)  0xE0
1089                 9-16    MFC Manufacturer ID (ISO/IEC 7816-6)    0x15 Atmel Corporation
1090                 17-21   CID                                                                             0x1 = Atmel ATA5577M1  0x2 = Atmel ATA5577M2
1091                 22-24   ICR IC revision
1092                 25-28   YEAR (BCD encoded)                                              9 (= 2009)
1093                 29-30   QUARTER                                                                 1,2,3,4
1094                 31-32   LOT ID
1095
1096         TRACE - BLOCK 1
1097                 1-12    LOT ID
1098                 13-17   Wafer number
1099                 18-32   DW,  die number sequential
1100         */
1101 }
1102
1103 void printT5555Trace( t5555_tracedata_t data, uint8_t repeat ){
1104         PrintAndLog("-- T5555 (Q5) Trace Information -----------------------------");
1105         PrintAndLog("-------------------------------------------------------------");
1106         PrintAndLog(" ICR IC Revision  : %d", data.icr );
1107         PrintAndLog("     Lot          : %c%d", data.lotidc, data.lotid);
1108         PrintAndLog("     Wafer number : %d", data.wafer);
1109         PrintAndLog("     Die Number   : %d", data.dw);
1110         PrintAndLog("-------------------------------------------------------------");
1111         PrintAndLog(" Raw Data - Page 1");
1112         PrintAndLog("     Block 1  : 0x%08X  %s", data.bl1, sprint_bin(DemodBuffer+config.offset+repeat,32) );
1113         PrintAndLog("     Block 2  : 0x%08X  %s", data.bl2, sprint_bin(DemodBuffer+config.offset+repeat+32,32) );
1114
1115         /*
1116                 ** Q5 **
1117                 TRACE - BLOCK O and BLOCK1
1118                 Bits    Definition                              HEX
1119                 1-9             Header                  0x1FF
1120                 10-11 IC Revision
1121                 12-13 Lot ID char
1122                 15-35 Lot ID (NB parity)
1123                 36-41 Wafer number (NB parity)
1124                 42-58 DW, die number sequential (NB parity)
1125                 60-63 Parity bits
1126                 64    Always zero
1127         */
1128 }
1129
1130 //need to add Q5 info...
1131 int CmdT55xxInfo(const char *Cmd){
1132         /*
1133                 Page 0 Block 0 Configuration data.
1134                 Normal mode
1135                 Extended mode
1136         */
1137         bool pwdmode = false;
1138         uint32_t password = 0;
1139         char cmdp = param_getchar(Cmd, 0);
1140
1141         if (strlen(Cmd) > 1 || cmdp == 'h' || cmdp == 'H')
1142                 return usage_t55xx_info();
1143
1144         if (strlen(Cmd)==0)
1145                 if ( !AquireData( T55x7_PAGE0, T55x7_CONFIGURATION_BLOCK, pwdmode, password ) )
1146                         return 1;
1147
1148         if (!DecodeT55xxBlock()) return 1;
1149
1150         // too little space to start with
1151         if ( DemodBufferLen < 32) return 1;
1152
1153         uint8_t si = config.offset;
1154         uint32_t bl0      = PackBits(si, 32, DemodBuffer);
1155
1156         uint32_t safer    = PackBits(si, 4, DemodBuffer); si += 4;
1157         uint32_t resv     = PackBits(si, 7, DemodBuffer); si += 7;
1158         uint32_t dbr      = PackBits(si, 3, DemodBuffer); si += 3;
1159         uint32_t extend   = PackBits(si, 1, DemodBuffer); si += 1;
1160         uint32_t datamod  = PackBits(si, 5, DemodBuffer); si += 5;
1161         uint32_t pskcf    = PackBits(si, 2, DemodBuffer); si += 2;
1162         uint32_t aor      = PackBits(si, 1, DemodBuffer); si += 1;
1163         uint32_t otp      = PackBits(si, 1, DemodBuffer); si += 1;
1164         uint32_t maxblk   = PackBits(si, 3, DemodBuffer); si += 3;
1165         uint32_t pwd      = PackBits(si, 1, DemodBuffer); si += 1;
1166         uint32_t sst      = PackBits(si, 1, DemodBuffer); si += 1;
1167         uint32_t fw       = PackBits(si, 1, DemodBuffer); si += 1;
1168         uint32_t inv      = PackBits(si, 1, DemodBuffer); si += 1;
1169         uint32_t por      = PackBits(si, 1, DemodBuffer); si += 1;
1170
1171         if (config.Q5) PrintAndLog("*** Warning *** Config Info read off a Q5 will not display as expected");
1172         PrintAndLog("");
1173         PrintAndLog("-- T55x7 Configuration & Tag Information --------------------");
1174         PrintAndLog("-------------------------------------------------------------");
1175         PrintAndLog(" Safer key                 : %s", GetSaferStr(safer));
1176         PrintAndLog(" reserved                  : %d", resv);
1177         PrintAndLog(" Data bit rate             : %s", GetBitRateStr(dbr, extend));
1178         PrintAndLog(" eXtended mode             : %s", (extend) ? "Yes - Warning":"No");
1179         PrintAndLog(" Modulation                : %s", GetModulationStr(datamod));
1180         PrintAndLog(" PSK clock frequency       : %d", pskcf);
1181         PrintAndLog(" AOR - Answer on Request   : %s", (aor) ? "Yes":"No");
1182         PrintAndLog(" OTP - One Time Pad        : %s", (otp) ? "Yes - Warning":"No" );
1183         PrintAndLog(" Max block                 : %d", maxblk);
1184         PrintAndLog(" Password mode             : %s", (pwd) ? "Yes":"No");
1185         PrintAndLog(" Sequence Start Terminator : %s", (sst) ? "Yes":"No");
1186         PrintAndLog(" Fast Write                : %s", (fw)  ? "Yes":"No");
1187         PrintAndLog(" Inverse data              : %s", (inv) ? "Yes":"No");
1188         PrintAndLog(" POR-Delay                 : %s", (por) ? "Yes":"No");
1189         PrintAndLog("-------------------------------------------------------------");
1190         PrintAndLog(" Raw Data - Page 0");
1191         PrintAndLog("     Block 0  : 0x%08X  %s", bl0, sprint_bin(DemodBuffer+config.offset,32) );
1192         PrintAndLog("-------------------------------------------------------------");
1193
1194         return 0;
1195 }
1196
1197 int CmdT55xxDump(const char *Cmd){
1198
1199         uint32_t password = 0;
1200         char cmdp = param_getchar(Cmd, 0);
1201         bool override = false;
1202         if ( cmdp == 'h' || cmdp == 'H') return usage_t55xx_dump();
1203
1204         bool usepwd = ( strlen(Cmd) > 0);
1205         if ( usepwd ){
1206                 password = param_get32ex(Cmd, 0, 0, 16);
1207                 if (param_getchar(Cmd, 1) =='o' )
1208                         override = true;
1209         }
1210
1211         printT5xxHeader(0);
1212         for ( uint8_t i = 0; i <8; ++i)
1213                 T55xxReadBlock(i, 0, usepwd, override, password);
1214
1215         printT5xxHeader(1);
1216         for ( uint8_t   i = 0; i<4; i++)
1217                 T55xxReadBlock(i, 1, usepwd, override, password);
1218
1219         return 1;
1220 }
1221
1222 int AquireData( uint8_t page, uint8_t block, bool pwdmode, uint32_t password ){
1223         // arg0 bitmodes:
1224         // bit0 = pwdmode
1225         // bit1 = page to read from
1226         uint8_t arg0 = (page<<1) | pwdmode;
1227         UsbCommand c = {CMD_T55XX_READ_BLOCK, {arg0, block, password}};
1228
1229         clearCommandBuffer();
1230         SendCommand(&c);
1231         if ( !WaitForResponseTimeout(CMD_ACK,NULL,2500) ) {
1232                 PrintAndLog("command execution time out");
1233                 return 0;
1234         }
1235
1236         uint8_t got[12000];
1237         GetFromBigBuf(got,sizeof(got),0);
1238         WaitForResponse(CMD_ACK,NULL);
1239         setGraphBuf(got, sizeof(got));
1240         return 1;
1241 }
1242
1243 char * GetBitRateStr(uint32_t id, bool xmode) {
1244         static char buf[25];
1245
1246         char *retStr = buf;
1247         if (xmode) { //xmode bitrate calc is same as em4x05 calc
1248                 snprintf(retStr,sizeof(buf),"%d - RF/%d", id, EM4x05_GET_BITRATE(id));
1249         } else {
1250                 switch (id) {
1251                         case 0:   snprintf(retStr,sizeof(buf),"%d - RF/8",id);   break;
1252                         case 1:   snprintf(retStr,sizeof(buf),"%d - RF/16",id);  break;
1253                         case 2:   snprintf(retStr,sizeof(buf),"%d - RF/32",id);  break;
1254                         case 3:   snprintf(retStr,sizeof(buf),"%d - RF/40",id);  break;
1255                         case 4:   snprintf(retStr,sizeof(buf),"%d - RF/50",id);  break;
1256                         case 5:   snprintf(retStr,sizeof(buf),"%d - RF/64",id);  break;
1257                         case 6:   snprintf(retStr,sizeof(buf),"%d - RF/100",id); break;
1258                         case 7:   snprintf(retStr,sizeof(buf),"%d - RF/128",id); break;
1259                         default:  snprintf(retStr,sizeof(buf),"%d - (Unknown)",id); break;
1260                 }
1261         }
1262         return buf;
1263 }
1264
1265 char * GetSaferStr(uint32_t id) {
1266         static char buf[40];
1267         char *retStr = buf;
1268
1269         snprintf(retStr,sizeof(buf),"%d",id);
1270         if (id == 6) {
1271                 snprintf(retStr,sizeof(buf),"%d - passwd",id);
1272         }
1273         if (id == 9 ){
1274                 snprintf(retStr,sizeof(buf),"%d - testmode",id);
1275         }
1276
1277         return buf;
1278 }
1279
1280 char * GetModulationStr( uint32_t id){
1281         static char buf[60];
1282         char *retStr = buf;
1283
1284         switch (id){
1285                 case 0: snprintf(retStr,sizeof(buf),"%d - DIRECT (ASK/NRZ)",id); break;
1286                 case 1: snprintf(retStr,sizeof(buf),"%d - PSK 1 phase change when input changes",id); break;
1287                 case 2: snprintf(retStr,sizeof(buf),"%d - PSK 2 phase change on bitclk if input high",id); break;
1288                 case 3: snprintf(retStr,sizeof(buf),"%d - PSK 3 phase change on rising edge of input",id); break;
1289                 case 4: snprintf(retStr,sizeof(buf),"%d - FSK 1 RF/8  RF/5",id); break;
1290                 case 5: snprintf(retStr,sizeof(buf),"%d - FSK 2 RF/8  RF/10",id); break;
1291                 case 6: snprintf(retStr,sizeof(buf),"%d - FSK 1a RF/5  RF/8",id); break;
1292                 case 7: snprintf(retStr,sizeof(buf),"%d - FSK 2a RF/10  RF/8",id); break;
1293                 case 8: snprintf(retStr,sizeof(buf),"%d - Manchester",id); break;
1294                 case 16: snprintf(retStr,sizeof(buf),"%d - Biphase",id); break;
1295                 case 0x18: snprintf(retStr,sizeof(buf),"%d - Biphase a - AKA Conditional Dephase Encoding(CDP)",id); break;
1296                 case 17: snprintf(retStr,sizeof(buf),"%d - Reserved",id); break;
1297                 default: snprintf(retStr,sizeof(buf),"0x%02X (Unknown)",id); break;
1298                 }
1299         return buf;
1300 }
1301
1302 char * GetModelStrFromCID(uint32_t cid){
1303
1304         static char buf[10];
1305         char *retStr = buf;
1306
1307         if (cid == 1) snprintf(retStr, sizeof(buf),"ATA5577M1");
1308         if (cid == 2) snprintf(retStr, sizeof(buf),"ATA5577M2");
1309         return buf;
1310 }
1311
1312 char * GetSelectedModulationStr( uint8_t id){
1313
1314         static char buf[20];
1315         char *retStr = buf;
1316
1317         switch (id) {
1318                 case DEMOD_FSK: snprintf(retStr,sizeof(buf),"FSK");     break;
1319                 case DEMOD_FSK1: snprintf(retStr,sizeof(buf),"FSK1"); break;
1320                 case DEMOD_FSK1a: snprintf(retStr,sizeof(buf),"FSK1a"); break;
1321                 case DEMOD_FSK2: snprintf(retStr,sizeof(buf),"FSK2"); break;
1322                 case DEMOD_FSK2a: snprintf(retStr,sizeof(buf),"FSK2a"); break;
1323                 case DEMOD_ASK: snprintf(retStr,sizeof(buf),"ASK"); break;
1324                 case DEMOD_NRZ: snprintf(retStr,sizeof(buf),"DIRECT/NRZ"); break;
1325                 case DEMOD_PSK1: snprintf(retStr,sizeof(buf),"PSK1"); break;
1326                 case DEMOD_PSK2: snprintf(retStr,sizeof(buf),"PSK2"); break;
1327                 case DEMOD_PSK3: snprintf(retStr,sizeof(buf),"PSK3"); break;
1328                 case DEMOD_BI: snprintf(retStr,sizeof(buf),"BIPHASE"); break;
1329                 case DEMOD_BIa: snprintf(retStr,sizeof(buf),"BIPHASEa - (CDP)"); break;
1330                 default: snprintf(retStr,sizeof(buf),"(Unknown)"); break;
1331         }
1332         return buf;
1333 }
1334
1335 uint32_t PackBits(uint8_t start, uint8_t len, uint8_t* bits){
1336
1337         int i = start;
1338         int j = len-1;
1339
1340         if (len > 32) return 0;
1341
1342         uint32_t tmp = 0;
1343         for (; j >= 0; --j, ++i)
1344                 tmp     |= bits[i] << j;
1345
1346         return tmp;
1347 }
1348
1349 int CmdResetRead(const char *Cmd) {
1350         UsbCommand c = {CMD_T55XX_RESET_READ, {0,0,0}};
1351
1352         clearCommandBuffer();
1353         SendCommand(&c);
1354         if ( !WaitForResponseTimeout(CMD_ACK,NULL,2500) ) {
1355                 PrintAndLog("command execution time out");
1356                 return 0;
1357         }
1358
1359         uint8_t got[BIGBUF_SIZE-1];
1360         GetFromBigBuf(got,sizeof(got),0);
1361         WaitForResponse(CMD_ACK,NULL);
1362         setGraphBuf(got, sizeof(got));
1363         return 1;
1364 }
1365
1366 int CmdT55xxWipe(const char *Cmd) {
1367         char writeData[20] = {0};
1368         char *ptrData = writeData;
1369
1370         char cmdp = param_getchar(Cmd, 0);
1371         if ( cmdp == 'h' || cmdp == 'H') return usage_t55xx_wipe();
1372
1373         bool Q5 = (cmdp == 'q' || cmdp == 'Q');
1374
1375         // Try with the default password to reset block 0
1376         // With a pwd should work even if pwd bit not set
1377         PrintAndLog("\nBeginning Wipe of a T55xx tag (assuming the tag is not password protected)\n");
1378
1379         if ( Q5 ){
1380                 snprintf(ptrData,sizeof(writeData),"b 0 d 6001F004 p 0");
1381         } else {
1382                 snprintf(ptrData,sizeof(writeData),"b 0 d 00088040 p 0");
1383         }
1384
1385         if (!CmdT55xxWriteBlock(ptrData)) PrintAndLog("Error writing blk 0");
1386
1387         for (uint8_t blk = 1; blk<8; blk++) {
1388                 snprintf(ptrData,sizeof(writeData),"b %d d 0", blk);
1389                 if (!CmdT55xxWriteBlock(ptrData))
1390                         PrintAndLog("Error writing blk %d", blk);
1391
1392                 memset(writeData, 0x00, sizeof(writeData));
1393         }
1394         return 0;
1395 }
1396
1397 int CmdT55xxBruteForce(const char *Cmd) {
1398
1399         // load a default pwd file.
1400         char buf[9];
1401         char filename[FILE_PATH_SIZE]={0};
1402         int keycnt = 0;
1403         int ch;
1404         uint8_t stKeyBlock = 20;
1405         uint8_t *keyBlock = NULL, *p = NULL;
1406         uint32_t start_password = 0x00000000; //start password
1407         uint32_t end_password   = 0xFFFFFFFF; //end   password
1408         bool found = false;
1409
1410         char cmdp = param_getchar(Cmd, 0);
1411         if (cmdp == 'h' || cmdp == 'H') return usage_t55xx_bruteforce();
1412
1413         keyBlock = calloc(stKeyBlock, 6);
1414         if (keyBlock == NULL) return 1;
1415
1416         if (cmdp == 'i' || cmdp == 'I') {
1417
1418                 int len = strlen(Cmd+2);
1419                 if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE;
1420                 memcpy(filename, Cmd+2, len);
1421
1422                 FILE * f = fopen( filename , "r");
1423
1424                 if ( !f ) {
1425                         PrintAndLog("File: %s: not found or locked.", filename);
1426                         free(keyBlock);
1427                         return 1;
1428                 }
1429
1430                 while( fgets(buf, sizeof(buf), f) ) {
1431                         if (strlen(buf) < 8 || buf[7] == '\n') continue;
1432
1433                         while (fgetc(f) != '\n' && !feof(f)) ;  //goto next line
1434
1435                         //The line start with # is comment, skip
1436                         if( buf[0]=='#' ) continue;
1437
1438                         if (!isxdigit(buf[0])) {
1439                                 PrintAndLog("File content error. '%s' must include 8 HEX symbols", buf);
1440                                 continue;
1441                         }
1442
1443                         buf[8] = 0;
1444
1445                         if ( stKeyBlock - keycnt < 2) {
1446                                 p = realloc(keyBlock, 6*(stKeyBlock+=10));
1447                                 if (!p) {
1448                                         PrintAndLog("Cannot allocate memory for defaultKeys");
1449                                         free(keyBlock);
1450                                         fclose(f);
1451                                         return 2;
1452                                 }
1453                                 keyBlock = p;
1454                         }
1455                         memset(keyBlock + 4 * keycnt, 0, 4);
1456                         num_to_bytes(strtoll(buf, NULL, 16), 4, keyBlock + 4*keycnt);
1457                         PrintAndLog("chk custom pwd[%2d] %08X", keycnt, bytes_to_num(keyBlock + 4*keycnt, 4));
1458                         keycnt++;
1459                         memset(buf, 0, sizeof(buf));
1460                 }
1461                 fclose(f);
1462
1463                 if (keycnt == 0) {
1464                         PrintAndLog("No keys found in file");
1465                         free(keyBlock);
1466                         return 1;
1467                 }
1468                 PrintAndLog("Loaded %d keys", keycnt);
1469
1470                 // loop
1471                 uint64_t testpwd = 0x00;
1472                 for (uint16_t c = 0; c < keycnt; ++c ) {
1473
1474                         if (ukbhit()) {
1475                                 ch = getchar();
1476                                 (void)ch;
1477                                 printf("\naborted via keyboard!\n");
1478                                 free(keyBlock);
1479                                 return 0;
1480                         }
1481
1482                         testpwd = bytes_to_num(keyBlock + 4*c, 4);
1483
1484                         PrintAndLog("Testing %08X", testpwd);
1485
1486                         if ( !AquireData(T55x7_PAGE0, T55x7_CONFIGURATION_BLOCK, true, testpwd)) {
1487                                 PrintAndLog("Aquireing data from device failed. Quitting");
1488                                 free(keyBlock);
1489                                 return 0;
1490                         }
1491
1492                         found = tryDetectModulation();
1493
1494                         if ( found ) {
1495                                 PrintAndLog("Found valid password: [%08X]", testpwd);
1496                                 free(keyBlock);
1497                                 return 0;
1498                         }
1499                 }
1500                 PrintAndLog("Password NOT found.");
1501                 free(keyBlock);
1502                 return 0;
1503         }
1504
1505         // Try to read Block 7, first :)
1506
1507         // incremental pwd range search
1508         start_password = param_get32ex(Cmd, 0, 0, 16);
1509         end_password = param_get32ex(Cmd, 1, 0, 16);
1510
1511         if ( start_password >= end_password ) {
1512                 free(keyBlock);
1513                 return usage_t55xx_bruteforce();
1514         }
1515         PrintAndLog("Search password range [%08X -> %08X]", start_password, end_password);
1516
1517         uint32_t i = start_password;
1518
1519         while ((!found) && (i <= end_password)) {
1520
1521                 printf(".");
1522                 fflush(stdout);
1523                 if (ukbhit()) {
1524                         ch = getchar();
1525                         (void)ch;
1526                         printf("\naborted via keyboard!\n");
1527                         free(keyBlock);
1528                         return 0;
1529                 }
1530
1531                 if (!AquireData(T55x7_PAGE0, T55x7_CONFIGURATION_BLOCK, true, i)) {
1532                         PrintAndLog("Aquireing data from device failed. Quitting");
1533                         free(keyBlock);
1534                         return 0;
1535                 }
1536                 found = tryDetectModulation();
1537
1538                 if (found) break;
1539                 i++;
1540         }
1541
1542         PrintAndLog("");
1543
1544         if (found)
1545                 PrintAndLog("Found valid password: [%08x]", i);
1546         else
1547                 PrintAndLog("Password NOT found. Last tried: [%08x]", --i);
1548
1549         free(keyBlock);
1550         return 0;
1551 }
1552
1553 // note length of data returned is different for different chips.
1554 //   some return all page 1 (64 bits) and others return just that block (32 bits)
1555 //   unfortunately the 64 bits makes this more likely to get a false positive...
1556 bool tryDetectP1(bool getData) {
1557         uint8_t preamble[] = {1,1,1,0,0,0,0,0,0,0,0,1,0,1,0,1};
1558         size_t startIdx = 0;
1559         uint8_t fc1 = 0, fc2 = 0, ans = 0;
1560         int clk = 0;
1561         bool st = true;
1562
1563         if ( getData ) {
1564                 if ( !AquireData(T55x7_PAGE1, 1, false, 0) )
1565                         return false;
1566         }
1567
1568         // try fsk clock detect. if successful it cannot be any other type of modulation...  (in theory...)
1569         ans = fskClocks(&fc1, &fc2, (uint8_t *)&clk, false);
1570         if (ans && ((fc1==10 && fc2==8) || (fc1==8 && fc2==5))) {
1571                 if ( FSKrawDemod("0 0", false) &&
1572                           preambleSearchEx(DemodBuffer,preamble,sizeof(preamble),&DemodBufferLen,&startIdx,false) &&
1573                           (DemodBufferLen == 32 || DemodBufferLen == 64) ) {
1574                         return true;
1575                 }
1576                 if ( FSKrawDemod("0 1", false) &&
1577                           preambleSearchEx(DemodBuffer,preamble,sizeof(preamble),&DemodBufferLen,&startIdx,false) &&
1578                           (DemodBufferLen == 32 || DemodBufferLen == 64) ) {
1579                         return true;
1580                 }
1581                 return false;
1582         }
1583
1584         // try psk clock detect. if successful it cannot be any other type of modulation... (in theory...)
1585         clk = GetPskClock("", false, false);
1586         if (clk>0) {
1587                 // allow undo
1588                 // save_restoreGB(1);
1589                 // skip first 160 samples to allow antenna to settle in (psk gets inverted occasionally otherwise)
1590                 //CmdLtrim("160");
1591                 if ( PSKDemod("0 0 6", false) &&
1592                           preambleSearchEx(DemodBuffer,preamble,sizeof(preamble),&DemodBufferLen,&startIdx,false) &&
1593                           (DemodBufferLen == 32 || DemodBufferLen == 64) ) {
1594                         //save_restoreGB(0);
1595                         return true;
1596                 }
1597                 if ( PSKDemod("0 1 6", false) &&
1598                           preambleSearchEx(DemodBuffer,preamble,sizeof(preamble),&DemodBufferLen,&startIdx,false) &&
1599                           (DemodBufferLen == 32 || DemodBufferLen == 64) ) {
1600                         //save_restoreGB(0);
1601                         return true;
1602                 }
1603                 // PSK2 - needs a call to psk1TOpsk2.
1604                 if ( PSKDemod("0 0 6", false)) {
1605                         psk1TOpsk2(DemodBuffer, DemodBufferLen);
1606                         if (preambleSearchEx(DemodBuffer,preamble,sizeof(preamble),&DemodBufferLen,&startIdx,false) &&
1607                                   (DemodBufferLen == 32 || DemodBufferLen == 64) ) {
1608                                 //save_restoreGB(0);
1609                                 return true;
1610                         }
1611                 } // inverse waves does not affect PSK2 demod
1612                 //undo trim samples
1613                 //save_restoreGB(0);
1614                 // no other modulation clocks = 2 or 4 so quit searching
1615                 if (fc1 != 8) return false;
1616         }
1617
1618         // try ask clock detect.  it could be another type even if successful.
1619         clk = GetAskClock("", false, false);
1620         if (clk>0) {
1621                 if ( ASKDemod_ext("0 0 1", false, false, 1, &st) &&
1622                           preambleSearchEx(DemodBuffer,preamble,sizeof(preamble),&DemodBufferLen,&startIdx,false) &&
1623                           (DemodBufferLen == 32 || DemodBufferLen == 64) ) {
1624                         return true;
1625                 }
1626                 st = true;
1627                 if ( ASKDemod_ext("0 1 1", false, false, 1, &st)  &&
1628                           preambleSearchEx(DemodBuffer,preamble,sizeof(preamble),&DemodBufferLen,&startIdx,false) &&
1629                           (DemodBufferLen == 32 || DemodBufferLen == 64) ) {
1630                         return true;
1631                 }
1632                 if ( ASKbiphaseDemod("0 0 0 2", false) &&
1633                           preambleSearchEx(DemodBuffer,preamble,sizeof(preamble),&DemodBufferLen,&startIdx,false) &&
1634                           (DemodBufferLen == 32 || DemodBufferLen == 64) ) {
1635                         return true;
1636                 }
1637                 if ( ASKbiphaseDemod("0 0 1 2", false) &&
1638                           preambleSearchEx(DemodBuffer,preamble,sizeof(preamble),&DemodBufferLen,&startIdx,false) &&
1639                           (DemodBufferLen == 32 || DemodBufferLen == 64) ) {
1640                         return true;
1641                 }
1642         }
1643
1644         // try NRZ clock detect.  it could be another type even if successful.
1645         clk = GetNrzClock("", false, false); //has the most false positives :(
1646         if (clk>0) {
1647                 if ( NRZrawDemod("0 0 1", false)  &&
1648                           preambleSearchEx(DemodBuffer,preamble,sizeof(preamble),&DemodBufferLen,&startIdx,false) &&
1649                           (DemodBufferLen == 32 || DemodBufferLen == 64) ) {
1650                         return true;
1651                 }
1652                 if ( NRZrawDemod("0 1 1", false)  &&
1653                           preambleSearchEx(DemodBuffer,preamble,sizeof(preamble),&DemodBufferLen,&startIdx,false) &&
1654                           (DemodBufferLen == 32 || DemodBufferLen == 64) ) {
1655                         return true;
1656                 }
1657         }
1658         return false;
1659 }
1660 //  does this need to be a callable command?
1661 int CmdT55xxDetectPage1(const char *Cmd){
1662         bool errors = false;
1663         bool useGB = false;
1664         bool usepwd = false;
1665         uint32_t password = 0;
1666         uint8_t cmdp = 0;
1667
1668         while(param_getchar(Cmd, cmdp) != 0x00 && !errors) {
1669                 switch(param_getchar(Cmd, cmdp)) {
1670                 case 'h':
1671                 case 'H':
1672                         return usage_t55xx_detectP1();
1673                 case 'p':
1674                 case 'P':
1675                         password = param_get32ex(Cmd, cmdp+1, 0, 16);
1676                         usepwd = true;
1677                         cmdp += 2;
1678                         break;
1679                 case '1':
1680                         // use Graphbuffer data
1681                         useGB = true;
1682                         cmdp++;
1683                         break;
1684                 default:
1685                         PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
1686                         errors = true;
1687                         break;
1688                 }
1689         }
1690         if (errors) return usage_t55xx_detectP1();
1691
1692         if ( !useGB ) {
1693                 if ( !AquireData(T55x7_PAGE1, 1, usepwd, password) )
1694                         return false;
1695         }
1696         bool success = tryDetectP1(false);
1697         if (success) PrintAndLog("T55xx chip found!");
1698         return success;
1699 }
1700
1701 static command_t CommandTable[] = {
1702   {"help",      CmdHelp,           1, "This help"},
1703         {"bruteforce",CmdT55xxBruteForce,0, "<start password> <end password> [i <*.dic>] Simple bruteforce attack to find password"},
1704   {"config",    CmdT55xxSetConfig, 1, "Set/Get T55XX configuration (modulation, inverted, offset, rate)"},
1705   {"detect",    CmdT55xxDetect,    1, "[1] Try detecting the tag modulation from reading the configuration block."},
1706   {"p1detect",  CmdT55xxDetectPage1,1, "[1] Try detecting if this is a t55xx tag by reading page 1"},
1707   {"read",      CmdT55xxReadBlock, 0, "b <block> p [password] [o] [1] -- Read T55xx block data. Optional [p password], [override], [page1]"},
1708   {"resetread", CmdResetRead,      0, "Send Reset Cmd then lf read the stream to attempt to identify the start of it (needs a demod and/or plot after)"},
1709   {"write",     CmdT55xxWriteBlock,0, "b <block> d <data> p [password] [1] -- Write T55xx block data. Optional [p password], [page1]"},
1710   {"trace",     CmdT55xxReadTrace, 1, "[1] Show T55x7 traceability data (page 1/ blk 0-1)"},
1711   {"info",      CmdT55xxInfo,      1, "[1] Show T55x7 configuration data (page 0/ blk 0)"},
1712   {"dump",      CmdT55xxDump,      0, "[password] [o] Dump T55xx card block 0-7. Optional [password], [override]"},
1713   {"special",   special,           0, "Show block changes with 64 different offsets"},
1714   {"wakeup",    CmdT55xxWakeUp,    0, "Send AOR wakeup command"},
1715   {"wipe",      CmdT55xxWipe,      0, "[q] Wipe a T55xx tag and set defaults (will destroy any data on tag)"},
1716   {NULL, NULL, 0, NULL}
1717 };
1718
1719 int CmdLFT55XX(const char *Cmd) {
1720   CmdsParse(CommandTable, Cmd);
1721   return 0;
1722 }
1723
1724 int CmdHelp(const char *Cmd) {
1725   CmdsHelp(CommandTable);
1726   return 0;
1727 }