git.zerfleddert.de Git - proxmark3-svn/blob - armsrc/mifarecmd.c

   1 //-----------------------------------------------------------------------------
   2 // Merlok - June 2011, 2012
   3 // Gerhard de Koning Gans - May 2008
   4 // Hagen Fritsch - June 2010
   5 //
   6 // This code is licensed to you under the terms of the GNU GPL, version 2 or,
   7 // at your option, any later version. See the LICENSE.txt file for the text of
   8 // the license.
   9 //-----------------------------------------------------------------------------
  10 // Routines to support ISO 14443 type A.
  11 //-----------------------------------------------------------------------------
  12
  13 #include "mifarecmd.h"
  14 #include "apps.h"
  15
  16 //-----------------------------------------------------------------------------
  17 // Select, Authenticate, Read a MIFARE tag.
  18 // read block
  19 //-----------------------------------------------------------------------------
  20 void MifareReadBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
  21 {
  22   // params
  23         uint8_t blockNo = arg0;
  24         uint8_t keyType = arg1;
  25         uint64_t ui64Key = 0;
  26         ui64Key = bytes_to_num(datain, 6);
  27
  28         // variables
  29         byte_t isOK = 0;
  30         byte_t dataoutbuf[16];
  31         uint8_t uid[10];
  32         uint32_t cuid;
  33         struct Crypto1State mpcs = {0, 0};
  34         struct Crypto1State *pcs;
  35         pcs = &mpcs;
  36
  37         // clear trace
  38         iso14a_clear_trace();
  39 //      iso14a_set_tracing(false);
  40
  41         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
  42
  43         LED_A_ON();
  44         LED_B_OFF();
  45         LED_C_OFF();
  46
  47         while (true) {
  48                 if(!iso14443a_select_card(uid, NULL, &cuid)) {
  49                         if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");
  50                         break;
  51                 };
  52
  53                 if(mifare_classic_auth(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST)) {
  54                         if (MF_DBGLEVEL >= 1)   Dbprintf("Auth error");
  55                         break;
  56                 };
  57
  58                 if(mifare_classic_readblock(pcs, cuid, blockNo, dataoutbuf)) {
  59                         if (MF_DBGLEVEL >= 1)   Dbprintf("Read block error");
  60                         break;
  61                 };
  62
  63                 if(mifare_classic_halt(pcs, cuid)) {
  64                         if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
  65                         break;
  66                 };
  67
  68                 isOK = 1;
  69                 break;
  70         }
  71
  72         //  ----------------------------- crypto1 destroy
  73         crypto1_destroy(pcs);
  74
  75         if (MF_DBGLEVEL >= 2)   DbpString("READ BLOCK FINISHED");
  76
  77         LED_B_ON();
  78         cmd_send(CMD_ACK,isOK,0,0,dataoutbuf,16);
  79         LED_B_OFF();
  80
  81         // Thats it...
  82         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
  83         LEDsoff();
  84 //  iso14a_set_tracing(TRUE);
  85
  86 }
  87
  88 void MifareUReadBlock(uint8_t arg0,uint8_t *datain)
  89 {
  90     // params
  91         uint8_t blockNo = arg0;
  92
  93         // variables
  94         byte_t isOK = 0;
  95         byte_t dataoutbuf[16];
  96         uint8_t uid[10];
  97         uint32_t cuid;
  98
  99         // clear trace
 100         iso14a_clear_trace();
 101         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 102
 103         LED_A_ON();
 104         LED_B_OFF();
 105         LED_C_OFF();
 106
 107         while (true) {
 108                 if(!iso14443a_select_card(uid, NULL, &cuid)) {
 109             if (MF_DBGLEVEL >= 1)       Dbprintf("Can't select card");
 110                         break;
 111                 };
 112
 113                 if(mifare_ultra_readblock(cuid, blockNo, dataoutbuf)) {
 114             if (MF_DBGLEVEL >= 1)       Dbprintf("Read block error");
 115                         break;
 116                 };
 117
 118                 if(mifare_ultra_halt(cuid)) {
 119             if (MF_DBGLEVEL >= 1)       Dbprintf("Halt error");
 120                         break;
 121                 };
 122
 123                 isOK = 1;
 124                 break;
 125         }
 126
 127         if (MF_DBGLEVEL >= 2)   DbpString("READ BLOCK FINISHED");
 128
 129         LED_B_ON();
 130     cmd_send(CMD_ACK,isOK,0,0,dataoutbuf,16);
 131         LED_B_OFF();
 132
 133
 134     // Thats it...
 135         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 136         LEDsoff();
 137 }
 138
 139
 140 //-----------------------------------------------------------------------------
 141 // Select, Authenticate, Read a MIFARE tag.
 142 // read sector (data = 4 x 16 bytes = 64 bytes, or 16 x 16 bytes = 256 bytes)
 143 //-----------------------------------------------------------------------------
 144 void MifareReadSector(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
 145 {
 146   // params
 147         uint8_t sectorNo = arg0;
 148         uint8_t keyType = arg1;
 149         uint64_t ui64Key = 0;
 150         ui64Key = bytes_to_num(datain, 6);
 151
 152         // variables
 153         byte_t isOK;
 154         byte_t dataoutbuf[16 * 16];
 155         uint8_t uid[10];
 156         uint32_t cuid;
 157         struct Crypto1State mpcs = {0, 0};
 158         struct Crypto1State *pcs;
 159         pcs = &mpcs;
 160
 161         // clear trace
 162         iso14a_clear_trace();
 163 //      iso14a_set_tracing(false);
 164
 165         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 166
 167         LED_A_ON();
 168         LED_B_OFF();
 169         LED_C_OFF();
 170
 171         isOK = 1;
 172         if(!iso14443a_select_card(uid, NULL, &cuid)) {
 173                 isOK = 0;
 174                 if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");
 175         }
 176
 177
 178         if(isOK && mifare_classic_auth(pcs, cuid, FirstBlockOfSector(sectorNo), keyType, ui64Key, AUTH_FIRST)) {
 179                 isOK = 0;
 180                 if (MF_DBGLEVEL >= 1)   Dbprintf("Auth error");
 181         }
 182
 183         for (uint8_t blockNo = 0; isOK && blockNo < NumBlocksPerSector(sectorNo); blockNo++) {
 184                 if(mifare_classic_readblock(pcs, cuid, FirstBlockOfSector(sectorNo) + blockNo, dataoutbuf + 16 * blockNo)) {
 185                         isOK = 0;
 186                         if (MF_DBGLEVEL >= 1)   Dbprintf("Read sector %2d block %2d error", sectorNo, blockNo);
 187                         break;
 188                 }
 189         }
 190
 191         if(mifare_classic_halt(pcs, cuid)) {
 192                 if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
 193         }
 194
 195
 196         //  ----------------------------- crypto1 destroy
 197         crypto1_destroy(pcs);
 198
 199         if (MF_DBGLEVEL >= 2) DbpString("READ SECTOR FINISHED");
 200
 201         LED_B_ON();
 202         cmd_send(CMD_ACK,isOK,0,0,dataoutbuf,16*NumBlocksPerSector(sectorNo));
 203         LED_B_OFF();
 204
 205         // Thats it...
 206         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 207         LEDsoff();
 208 //  iso14a_set_tracing(TRUE);
 209 }
 210
 211
 212 void MifareUReadCard(uint8_t arg0, uint8_t *datain)
 213 {
 214   // params
 215         uint8_t sectorNo = arg0;
 216
 217         // variables
 218         byte_t isOK = 0;
 219         byte_t dataoutbuf[16 * 4];
 220         uint8_t uid[10];
 221         uint32_t cuid;
 222
 223         // clear trace
 224         iso14a_clear_trace();
 225 //      iso14a_set_tracing(false);
 226
 227                 iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 228
 229         LED_A_ON();
 230         LED_B_OFF();
 231         LED_C_OFF();
 232
 233         while (true) {
 234                 if(!iso14443a_select_card(uid, NULL, &cuid)) {
 235                 if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");
 236                         break;
 237                 };
 238                 for(int sec=0;sec<16;sec++){
 239                     if(mifare_ultra_readblock(cuid, sectorNo * 4 + sec, dataoutbuf + 4 * sec)) {
 240                     if (MF_DBGLEVEL >= 1)   Dbprintf("Read block %d error",sec);
 241                         break;
 242                     };
 243                 }
 244                 if(mifare_ultra_halt(cuid)) {
 245                 if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
 246                         break;
 247                 };
 248
 249                 isOK = 1;
 250                 break;
 251         }
 252
 253         if (MF_DBGLEVEL >= 2) DbpString("READ CARD FINISHED");
 254
 255         LED_B_ON();
 256                 cmd_send(CMD_ACK,isOK,0,0,dataoutbuf,64);
 257         LED_B_OFF();
 258
 259         // Thats it...
 260         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 261         LEDsoff();
 262
 263 }
 264
 265
 266 //-----------------------------------------------------------------------------
 267 // Select, Authenticate, Write a MIFARE tag.
 268 // read block
 269 //-----------------------------------------------------------------------------
 270 void MifareWriteBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
 271 {
 272         // params
 273         uint8_t blockNo = arg0;
 274         uint8_t keyType = arg1;
 275         uint64_t ui64Key = 0;
 276         byte_t blockdata[16];
 277
 278         ui64Key = bytes_to_num(datain, 6);
 279         memcpy(blockdata, datain + 10, 16);
 280
 281         // variables
 282         byte_t isOK = 0;
 283         uint8_t uid[10];
 284         uint32_t cuid;
 285         struct Crypto1State mpcs = {0, 0};
 286         struct Crypto1State *pcs;
 287         pcs = &mpcs;
 288
 289         // clear trace
 290         iso14a_clear_trace();
 291 //  iso14a_set_tracing(false);
 292
 293         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 294
 295         LED_A_ON();
 296         LED_B_OFF();
 297         LED_C_OFF();
 298
 299         while (true) {
 300                         if(!iso14443a_select_card(uid, NULL, &cuid)) {
 301                         if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");
 302                         break;
 303                 };
 304
 305                 if(mifare_classic_auth(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST)) {
 306                         if (MF_DBGLEVEL >= 1)   Dbprintf("Auth error");
 307                         break;
 308                 };
 309
 310                 if(mifare_classic_writeblock(pcs, cuid, blockNo, blockdata)) {
 311                         if (MF_DBGLEVEL >= 1)   Dbprintf("Write block error");
 312                         break;
 313                 };
 314
 315                 if(mifare_classic_halt(pcs, cuid)) {
 316                         if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
 317                         break;
 318                 };
 319
 320                 isOK = 1;
 321                 break;
 322         }
 323
 324         //  ----------------------------- crypto1 destroy
 325         crypto1_destroy(pcs);
 326
 327         if (MF_DBGLEVEL >= 2)   DbpString("WRITE BLOCK FINISHED");
 328
 329         LED_B_ON();
 330         cmd_send(CMD_ACK,isOK,0,0,0,0);
 331         LED_B_OFF();
 332
 333
 334         // Thats it...
 335         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 336         LEDsoff();
 337 //  iso14a_set_tracing(TRUE);
 338
 339 }
 340
 341
 342 void MifareUWriteBlock(uint8_t arg0, uint8_t *datain)
 343 {
 344         // params
 345         uint8_t blockNo = arg0;
 346         byte_t blockdata[16];
 347
 348         memset(blockdata,'\0',16);
 349         memcpy(blockdata, datain,16);
 350
 351         // variables
 352         byte_t isOK = 0;
 353         uint8_t uid[10];
 354         uint32_t cuid;
 355
 356         // clear trace
 357         iso14a_clear_trace();
 358         //  iso14a_set_tracing(false);
 359
 360                 iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 361
 362         LED_A_ON();
 363         LED_B_OFF();
 364         LED_C_OFF();
 365
 366         while (true) {
 367                 if(!iso14443a_select_card(uid, NULL, &cuid)) {
 368                         if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");
 369                         break;
 370                 };
 371
 372                 if(mifare_ultra_writeblock(cuid, blockNo, blockdata)) {
 373                         if (MF_DBGLEVEL >= 1)   Dbprintf("Write block error");
 374                         break;
 375                 };
 376
 377                 if(mifare_ultra_halt(cuid)) {
 378                         if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
 379                         break;
 380                 };
 381
 382                 isOK = 1;
 383                 break;
 384         }
 385
 386         if (MF_DBGLEVEL >= 2)   DbpString("WRITE BLOCK FINISHED");
 387
 388         LED_B_ON();
 389                 cmd_send(CMD_ACK,isOK,0,0,0,0);
 390         LED_B_OFF();
 391
 392
 393         // Thats it...
 394         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 395         LEDsoff();
 396 //  iso14a_set_tracing(TRUE);
 397 }
 398
 399
 400 void MifareUWriteBlock_Special(uint8_t arg0, uint8_t *datain)
 401 {
 402         // params
 403         uint8_t blockNo = arg0;
 404         byte_t blockdata[4];
 405
 406         memcpy(blockdata, datain,4);
 407
 408         // variables
 409         byte_t isOK = 0;
 410         uint8_t uid[10];
 411         uint32_t cuid;
 412
 413         // clear trace
 414         iso14a_clear_trace();
 415         //  iso14a_set_tracing(false);
 416
 417         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 418
 419         LED_A_ON();
 420         LED_B_OFF();
 421         LED_C_OFF();
 422
 423         while (true) {
 424                 if(!iso14443a_select_card(uid, NULL, &cuid)) {
 425                         if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");
 426                         break;
 427                 };
 428
 429                 if(mifare_ultra_special_writeblock(cuid, blockNo, blockdata)) {
 430                         if (MF_DBGLEVEL >= 1)   Dbprintf("Write block error");
 431                         break;
 432                 };
 433
 434                 if(mifare_ultra_halt(cuid)) {
 435                         if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
 436                         break;
 437                 };
 438
 439                 isOK = 1;
 440                 break;
 441         }
 442
 443         if (MF_DBGLEVEL >= 2)   DbpString("WRITE BLOCK FINISHED");
 444
 445         LED_B_ON();
 446         cmd_send(CMD_ACK,isOK,0,0,0,0);
 447         LED_B_OFF();
 448
 449
 450         // Thats it...
 451         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 452         LEDsoff();
 453 //  iso14a_set_tracing(TRUE);
 454
 455 }
 456
 457
 458 // Return 1 if the nonce is invalid else return 0
 459 int valid_nonce(uint32_t Nt, uint32_t NtEnc, uint32_t Ks1, uint8_t *parity) {
 460         return ((oddparity((Nt >> 24) & 0xFF) == ((parity[0]) ^ oddparity((NtEnc >> 24) & 0xFF) ^ BIT(Ks1,16))) & \
 461         (oddparity((Nt >> 16) & 0xFF) == ((parity[1]) ^ oddparity((NtEnc >> 16) & 0xFF) ^ BIT(Ks1,8))) & \
 462         (oddparity((Nt >> 8) & 0xFF) == ((parity[2]) ^ oddparity((NtEnc >> 8) & 0xFF) ^ BIT(Ks1,0)))) ? 1 : 0;
 463 }
 464
 465
 466 //-----------------------------------------------------------------------------
 467 // MIFARE nested authentication.
 468 //
 469 //-----------------------------------------------------------------------------
 470 void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *datain)
 471 {
 472         // params
 473         uint8_t blockNo = arg0 & 0xff;
 474         uint8_t keyType = (arg0 >> 8) & 0xff;
 475         uint8_t targetBlockNo = arg1 & 0xff;
 476         uint8_t targetKeyType = (arg1 >> 8) & 0xff;
 477         uint64_t ui64Key = 0;
 478
 479         ui64Key = bytes_to_num(datain, 6);
 480
 481         // variables
 482         uint16_t rtr, i, j, len;
 483         uint16_t davg;
 484         static uint16_t dmin, dmax;
 485         uint8_t uid[10];
 486         uint32_t cuid, nt1, nt2, nttmp, nttest, ks1;
 487         uint8_t par[1];
 488         uint32_t target_nt[2], target_ks[2];
 489
 490         uint8_t par_array[4];
 491         uint16_t ncount = 0;
 492         struct Crypto1State mpcs = {0, 0};
 493         struct Crypto1State *pcs;
 494         pcs = &mpcs;
 495         uint8_t* receivedAnswer = get_bigbufptr_recvrespbuf();
 496
 497         uint32_t auth1_time, auth2_time;
 498         static uint16_t delta_time;
 499
 500         // clear trace
 501         iso14a_clear_trace();
 502         iso14a_set_tracing(false);
 503
 504         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 505
 506         LED_A_ON();
 507         LED_C_OFF();
 508
 509
 510         // statistics on nonce distance
 511         if (calibrate) {        // for first call only. Otherwise reuse previous calibration
 512                 LED_B_ON();
 513
 514                 davg = dmax = 0;
 515                 dmin = 2000;
 516                 delta_time = 0;
 517
 518                 for (rtr = 0; rtr < 17; rtr++) {
 519
 520                         // prepare next select. No need to power down the card.
 521                         if(mifare_classic_halt(pcs, cuid)) {
 522                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Halt error");
 523                                 rtr--;
 524                                 continue;
 525                         }
 526
 527                         if(!iso14443a_select_card(uid, NULL, &cuid)) {
 528                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Can't select card");
 529                                 rtr--;
 530                                 continue;
 531                         };
 532
 533                         auth1_time = 0;
 534                         if(mifare_classic_authex(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST, &nt1, &auth1_time)) {
 535                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Auth1 error");
 536                                 rtr--;
 537                                 continue;
 538                         };
 539
 540                         if (delta_time) {
 541                                 auth2_time = auth1_time + delta_time;
 542                         } else {
 543                                 auth2_time = 0;
 544                         }
 545                         if(mifare_classic_authex(pcs, cuid, blockNo, keyType, ui64Key, AUTH_NESTED, &nt2, &auth2_time)) {
 546                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Auth2 error");
 547                                 rtr--;
 548                                 continue;
 549                         };
 550
 551                         nttmp = prng_successor(nt1, 100);                               //NXP Mifare is typical around 840,but for some unlicensed/compatible mifare card this can be 160
 552                         for (i = 101; i < 1200; i++) {
 553                                 nttmp = prng_successor(nttmp, 1);
 554                                 if (nttmp == nt2) break;
 555                         }
 556
 557                         if (i != 1200) {
 558                                 if (rtr != 0) {
 559                                         davg += i;
 560                                         dmin = MIN(dmin, i);
 561                                         dmax = MAX(dmax, i);
 562                                 }
 563                                 else {
 564                                         delta_time = auth2_time - auth1_time + 32;  // allow some slack for proper timing
 565                                 }
 566                                 if (MF_DBGLEVEL >= 3) Dbprintf("Nested: calibrating... ntdist=%d", i);
 567                         }
 568                 }
 569
 570                 if (rtr <= 1)   return;
 571
 572                 davg = (davg + (rtr - 1)/2) / (rtr - 1);
 573
 574                 if (MF_DBGLEVEL >= 3) Dbprintf("min=%d max=%d avg=%d, delta_time=%d", dmin, dmax, davg, delta_time);
 575
 576                 dmin = davg - 2;
 577                 dmax = davg + 2;
 578
 579                 LED_B_OFF();
 580
 581         }
 582 //  -------------------------------------------------------------------------------------------------
 583
 584         LED_C_ON();
 585
 586         //  get crypted nonces for target sector
 587         for(i=0; i < 2; i++) { // look for exactly two different nonces
 588
 589                 target_nt[i] = 0;
 590                 while(target_nt[i] == 0) { // continue until we have an unambiguous nonce
 591
 592                         // prepare next select. No need to power down the card.
 593                         if(mifare_classic_halt(pcs, cuid)) {
 594                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Halt error");
 595                                 continue;
 596                         }
 597
 598                         if(!iso14443a_select_card(uid, NULL, &cuid)) {
 599                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Can't select card");
 600                                 continue;
 601                         };
 602
 603                         auth1_time = 0;
 604                         if(mifare_classic_authex(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST, &nt1, &auth1_time)) {
 605                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Auth1 error");
 606                                 continue;
 607                         };
 608
 609                         // nested authentication
 610                         auth2_time = auth1_time + delta_time;
 611                         len = mifare_sendcmd_shortex(pcs, AUTH_NESTED, 0x60 + (targetKeyType & 0x01), targetBlockNo, receivedAnswer, par, &auth2_time);
 612                         if (len != 4) {
 613                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Auth2 error len=%d", len);
 614                                 continue;
 615                         };
 616
 617                         nt2 = bytes_to_num(receivedAnswer, 4);
 618                         if (MF_DBGLEVEL >= 3) Dbprintf("Nonce#%d: Testing nt1=%08x nt2enc=%08x nt2par=%02x", i+1, nt1, nt2, par[0]);
 619
 620                         // Parity validity check
 621                         for (j = 0; j < 4; j++) {
 622                                 par_array[j] = (oddparity(receivedAnswer[j]) != ((par[0] >> (7-j)) & 0x01));
 623                         }
 624
 625                         ncount = 0;
 626                         nttest = prng_successor(nt1, dmin - 1);
 627                         for (j = dmin; j < dmax + 1; j++) {
 628                                 nttest = prng_successor(nttest, 1);
 629                                 ks1 = nt2 ^ nttest;
 630
 631                                 if (valid_nonce(nttest, nt2, ks1, par_array)){
 632                                         if (ncount > 0) {               // we are only interested in disambiguous nonces, try again
 633                                                 if (MF_DBGLEVEL >= 3) Dbprintf("Nonce#%d: dismissed (ambigous), ntdist=%d", i+1, j);
 634                                                 target_nt[i] = 0;
 635                                                 break;
 636                                         }
 637                                         target_nt[i] = nttest;
 638                                         target_ks[i] = ks1;
 639                                         ncount++;
 640                                         if (i == 1 && target_nt[1] == target_nt[0]) { // we need two different nonces
 641                                                 target_nt[i] = 0;
 642                                                 if (MF_DBGLEVEL >= 3) Dbprintf("Nonce#2: dismissed (= nonce#1), ntdist=%d", j);
 643                                                 break;
 644                                         }
 645                                         if (MF_DBGLEVEL >= 3) Dbprintf("Nonce#%d: valid, ntdist=%d", i+1, j);
 646                                 }
 647                         }
 648                         if (target_nt[i] == 0 && j == dmax+1 && MF_DBGLEVEL >= 3) Dbprintf("Nonce#%d: dismissed (all invalid)", i+1);
 649                 }
 650         }
 651
 652         LED_C_OFF();
 653
 654         //  ----------------------------- crypto1 destroy
 655         crypto1_destroy(pcs);
 656
 657         byte_t buf[4 + 4 * 4];
 658         memcpy(buf, &cuid, 4);
 659         memcpy(buf+4, &target_nt[0], 4);
 660         memcpy(buf+8, &target_ks[0], 4);
 661         memcpy(buf+12, &target_nt[1], 4);
 662         memcpy(buf+16, &target_ks[1], 4);
 663
 664         LED_B_ON();
 665         cmd_send(CMD_ACK, 0, 2, targetBlockNo + (targetKeyType * 0x100), buf, sizeof(buf));
 666         LED_B_OFF();
 667
 668         if (MF_DBGLEVEL >= 3)   DbpString("NESTED FINISHED");
 669
 670         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 671         LEDsoff();
 672         iso14a_set_tracing(TRUE);
 673 }
 674
 675 //-----------------------------------------------------------------------------
 676 // MIFARE check keys. key count up to 85.
 677 //
 678 //-----------------------------------------------------------------------------
 679 void MifareChkKeys(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
 680 {
 681   // params
 682         uint8_t blockNo = arg0;
 683         uint8_t keyType = arg1;
 684         uint8_t keyCount = arg2;
 685         uint64_t ui64Key = 0;
 686
 687         // variables
 688         int i;
 689         byte_t isOK = 0;
 690         uint8_t uid[10];
 691         uint32_t cuid;
 692         struct Crypto1State mpcs = {0, 0};
 693         struct Crypto1State *pcs;
 694         pcs = &mpcs;
 695
 696         // clear debug level
 697         int OLD_MF_DBGLEVEL = MF_DBGLEVEL;
 698         MF_DBGLEVEL = MF_DBG_NONE;
 699
 700         // clear trace
 701         iso14a_clear_trace();
 702         iso14a_set_tracing(TRUE);
 703
 704         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 705
 706         LED_A_ON();
 707         LED_B_OFF();
 708         LED_C_OFF();
 709
 710         for (i = 0; i < keyCount; i++) {
 711                 if(mifare_classic_halt(pcs, cuid)) {
 712                         if (MF_DBGLEVEL >= 1)   Dbprintf("ChkKeys: Halt error");
 713                 }
 714
 715                 if(!iso14443a_select_card(uid, NULL, &cuid)) {
 716                         if (OLD_MF_DBGLEVEL >= 1)       Dbprintf("ChkKeys: Can't select card");
 717                         break;
 718                 };
 719
 720                 ui64Key = bytes_to_num(datain + i * 6, 6);
 721                 if(mifare_classic_auth(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST)) {
 722                         continue;
 723                 };
 724
 725                 isOK = 1;
 726                 break;
 727         }
 728
 729         //  ----------------------------- crypto1 destroy
 730         crypto1_destroy(pcs);
 731
 732         LED_B_ON();
 733     cmd_send(CMD_ACK,isOK,0,0,datain + i * 6,6);
 734         LED_B_OFF();
 735
 736   // Thats it...
 737         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 738         LEDsoff();
 739
 740         // restore debug level
 741         MF_DBGLEVEL = OLD_MF_DBGLEVEL;
 742 }
 743
 744 //-----------------------------------------------------------------------------
 745 // MIFARE commands set debug level
 746 //
 747 //-----------------------------------------------------------------------------
 748 void MifareSetDbgLvl(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
 749         MF_DBGLEVEL = arg0;
 750         Dbprintf("Debug level: %d", MF_DBGLEVEL);
 751 }
 752
 753
 754 //-----------------------------------------------------------------------------
 755 // Work with emulator memory
 756 //
 757 //-----------------------------------------------------------------------------
 758 void MifareEMemClr(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
 759         emlClearMem();
 760 }
 761
 762
 763 void MifareEMemSet(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
 764         emlSetMem(datain, arg0, arg1); // data, block num, blocks count
 765 }
 766
 767
 768 void MifareEMemGet(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
 769
 770         byte_t buf[48];
 771         emlGetMem(buf, arg0, arg1); // data, block num, blocks count (max 4)
 772
 773         LED_B_ON();
 774         cmd_send(CMD_ACK,arg0,arg1,0,buf,48);
 775         LED_B_OFF();
 776 }
 777
 778
 779 //-----------------------------------------------------------------------------
 780 // Load a card into the emulator memory
 781 //
 782 //-----------------------------------------------------------------------------
 783 void MifareECardLoad(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
 784         uint8_t numSectors = arg0;
 785         uint8_t keyType = arg1;
 786         uint64_t ui64Key = 0;
 787         uint32_t cuid;
 788         struct Crypto1State mpcs = {0, 0};
 789         struct Crypto1State *pcs;
 790         pcs = &mpcs;
 791
 792         // variables
 793         byte_t dataoutbuf[16];
 794         byte_t dataoutbuf2[16];
 795         uint8_t uid[10];
 796
 797         // clear trace
 798         iso14a_clear_trace();
 799         iso14a_set_tracing(false);
 800
 801         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 802
 803         LED_A_ON();
 804         LED_B_OFF();
 805         LED_C_OFF();
 806
 807         bool isOK = true;
 808
 809         if(!iso14443a_select_card(uid, NULL, &cuid)) {
 810                 isOK = false;
 811                 if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");
 812         }
 813
 814         for (uint8_t sectorNo = 0; isOK && sectorNo < numSectors; sectorNo++) {
 815                 ui64Key = emlGetKey(sectorNo, keyType);
 816                 if (sectorNo == 0){
 817                         if(isOK && mifare_classic_auth(pcs, cuid, FirstBlockOfSector(sectorNo), keyType, ui64Key, AUTH_FIRST)) {
 818                                 isOK = false;
 819                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Sector[%2d]. Auth error", sectorNo);
 820                                 break;
 821                         }
 822                 } else {
 823                         if(isOK && mifare_classic_auth(pcs, cuid, FirstBlockOfSector(sectorNo), keyType, ui64Key, AUTH_NESTED)) {
 824                                 isOK = false;
 825                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Sector[%2d]. Auth nested error", sectorNo);
 826                                 break;
 827                         }
 828                 }
 829
 830                 for (uint8_t blockNo = 0; isOK && blockNo < NumBlocksPerSector(sectorNo); blockNo++) {
 831                         if(isOK && mifare_classic_readblock(pcs, cuid, FirstBlockOfSector(sectorNo) + blockNo, dataoutbuf)) {
 832                                 isOK = false;
 833                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Error reading sector %2d block %2d", sectorNo, blockNo);
 834                                 break;
 835                         };
 836                         if (isOK) {
 837                                 if (blockNo < NumBlocksPerSector(sectorNo) - 1) {
 838                                         emlSetMem(dataoutbuf, FirstBlockOfSector(sectorNo) + blockNo, 1);
 839                                 } else {        // sector trailer, keep the keys, set only the AC
 840                                         emlGetMem(dataoutbuf2, FirstBlockOfSector(sectorNo) + blockNo, 1);
 841                                         memcpy(&dataoutbuf2[6], &dataoutbuf[6], 4);
 842                                         emlSetMem(dataoutbuf2,  FirstBlockOfSector(sectorNo) + blockNo, 1);
 843                                 }
 844                         }
 845                 }
 846
 847         }
 848
 849         if(mifare_classic_halt(pcs, cuid)) {
 850                 if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
 851         };
 852
 853         //  ----------------------------- crypto1 destroy
 854         crypto1_destroy(pcs);
 855
 856         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 857         LEDsoff();
 858
 859         if (MF_DBGLEVEL >= 2) DbpString("EMUL FILL SECTORS FINISHED");
 860
 861 }
 862
 863
 864 //-----------------------------------------------------------------------------
 865 // Work with "magic Chinese" card (email him: ouyangweidaxian@live.cn)
 866 //
 867 //-----------------------------------------------------------------------------
 868 void MifareCSetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
 869
 870   // params
 871         uint8_t needWipe = arg0;
 872         // bit 0 - need get UID
 873         // bit 1 - need wupC
 874         // bit 2 - need HALT after sequence
 875         // bit 3 - need init FPGA and field before sequence
 876         // bit 4 - need reset FPGA and LED
 877         uint8_t workFlags = arg1;
 878         uint8_t blockNo = arg2;
 879
 880         // card commands
 881         uint8_t wupC1[]       = { 0x40 };
 882         uint8_t wupC2[]       = { 0x43 };
 883         uint8_t wipeC[]       = { 0x41 };
 884
 885         // variables
 886         byte_t isOK = 0;
 887         uint8_t uid[10];
 888         uint8_t d_block[18];
 889         uint32_t cuid;
 890
 891         memset(uid, 0x00, 10);
 892         uint8_t *receivedAnswer = get_bigbufptr_recvrespbuf();
 893         uint8_t *receivedAnswerPar = receivedAnswer + MAX_FRAME_SIZE;
 894
 895         if (workFlags & 0x08) {
 896                 // clear trace
 897                 iso14a_clear_trace();
 898                 iso14a_set_tracing(TRUE);
 899
 900                 iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 901
 902                 LED_A_ON();
 903                 LED_B_OFF();
 904                 LED_C_OFF();
 905
 906                 SpinDelay(300);
 907                 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 908                 SpinDelay(100);
 909                 FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_READER_MOD);
 910         }
 911
 912         while (true) {
 913                 // get UID from chip
 914                 if (workFlags & 0x01) {
 915                         if(!iso14443a_select_card(uid, NULL, &cuid)) {
 916                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");
 917                                 break;
 918                         };
 919
 920                         if(mifare_classic_halt(NULL, cuid)) {
 921                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
 922                                 break;
 923                         };
 924                 };
 925
 926                 // reset chip
 927                 if (needWipe){
 928                         ReaderTransmitBitsPar(wupC1,7,0, NULL);
 929                         if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
 930                                 if (MF_DBGLEVEL >= 1)   Dbprintf("wupC1 error");
 931                                 break;
 932                         };
 933
 934                         ReaderTransmit(wipeC, sizeof(wipeC), NULL);
 935                         if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
 936                                 if (MF_DBGLEVEL >= 1)   Dbprintf("wipeC error");
 937                                 break;
 938                         };
 939
 940                         if(mifare_classic_halt(NULL, cuid)) {
 941                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
 942                                 break;
 943                         };
 944                 };
 945
 946                 // write block
 947                 if (workFlags & 0x02) {
 948                         ReaderTransmitBitsPar(wupC1,7,0, NULL);
 949                         if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
 950                                 if (MF_DBGLEVEL >= 1)   Dbprintf("wupC1 error");
 951                                 break;
 952                         };
 953
 954                         ReaderTransmit(wupC2, sizeof(wupC2), NULL);
 955                         if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
 956                                 if (MF_DBGLEVEL >= 1)   Dbprintf("wupC2 error");
 957                                 break;
 958                         };
 959                 }
 960
 961                 if ((mifare_sendcmd_short(NULL, 0, 0xA0, blockNo, receivedAnswer, receivedAnswerPar, NULL) != 1) || (receivedAnswer[0] != 0x0a)) {
 962                         if (MF_DBGLEVEL >= 1)   Dbprintf("write block send command error");
 963                         break;
 964                 };
 965
 966                 memcpy(d_block, datain, 16);
 967                 AppendCrc14443a(d_block, 16);
 968
 969                 ReaderTransmit(d_block, sizeof(d_block), NULL);
 970                 if ((ReaderReceive(receivedAnswer, receivedAnswerPar) != 1) || (receivedAnswer[0] != 0x0a)) {
 971                         if (MF_DBGLEVEL >= 1)   Dbprintf("write block send data error");
 972                         break;
 973                 };
 974
 975                 if (workFlags & 0x04) {
 976                         if (mifare_classic_halt(NULL, cuid)) {
 977                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
 978                                 break;
 979                         };
 980                 }
 981
 982                 isOK = 1;
 983                 break;
 984         }
 985
 986         LED_B_ON();
 987         cmd_send(CMD_ACK,isOK,0,0,uid,4);
 988         LED_B_OFF();
 989
 990         if ((workFlags & 0x10) || (!isOK)) {
 991                 // Thats it...
 992                 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 993                 LEDsoff();
 994         }
 995 }
 996
 997
 998 void MifareCGetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
 999
1000   // params
1001         // bit 1 - need wupC
1002         // bit 2 - need HALT after sequence
1003         // bit 3 - need init FPGA and field before sequence
1004         // bit 4 - need reset FPGA and LED
1005         uint8_t workFlags = arg0;
1006         uint8_t blockNo = arg2;
1007
1008         // card commands
1009         uint8_t wupC1[]       = { 0x40 };
1010         uint8_t wupC2[]       = { 0x43 };
1011
1012         // variables
1013         byte_t isOK = 0;
1014         uint8_t data[18];
1015         uint32_t cuid = 0;
1016
1017         memset(data, 0x00, 18);
1018         uint8_t* receivedAnswer = get_bigbufptr_recvrespbuf();
1019         uint8_t *receivedAnswerPar = receivedAnswer + MAX_FRAME_SIZE;
1020
1021         if (workFlags & 0x08) {
1022                 // clear trace
1023                 iso14a_clear_trace();
1024                 iso14a_set_tracing(TRUE);
1025
1026                 iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
1027
1028                 LED_A_ON();
1029                 LED_B_OFF();
1030                 LED_C_OFF();
1031
1032                 SpinDelay(300);
1033                 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
1034                 SpinDelay(100);
1035                 FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_READER_MOD);
1036         }
1037
1038         while (true) {
1039                 if (workFlags & 0x02) {
1040                         ReaderTransmitBitsPar(wupC1,7,0, NULL);
1041                         if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
1042                                 if (MF_DBGLEVEL >= 1)   Dbprintf("wupC1 error");
1043                                 break;
1044                         };
1045
1046                         ReaderTransmit(wupC2, sizeof(wupC2), NULL);
1047                         if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
1048                                 if (MF_DBGLEVEL >= 1)   Dbprintf("wupC2 error");
1049                                 break;
1050                         };
1051                 }
1052
1053                 // read block
1054                 if ((mifare_sendcmd_short(NULL, 0, 0x30, blockNo, receivedAnswer, receivedAnswerPar, NULL) != 18)) {
1055                         if (MF_DBGLEVEL >= 1)   Dbprintf("read block send command error");
1056                         break;
1057                 };
1058                 memcpy(data, receivedAnswer, 18);
1059
1060                 if (workFlags & 0x04) {
1061                         if (mifare_classic_halt(NULL, cuid)) {
1062                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
1063                                 break;
1064                         };
1065                 }
1066
1067                 isOK = 1;
1068                 break;
1069         }
1070
1071         LED_B_ON();
1072         cmd_send(CMD_ACK,isOK,0,0,data,18);
1073         LED_B_OFF();
1074
1075         if ((workFlags & 0x10) || (!isOK)) {
1076                 // Thats it...
1077                 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
1078                 LEDsoff();
1079         }
1080 }
1081