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         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
  40
  41         LED_A_ON();
  42         LED_B_OFF();
  43         LED_C_OFF();
  44
  45         while (true) {
  46                 if(!iso14443a_select_card(uid, NULL, &cuid)) {
  47                         if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");
  48                         break;
  49                 };
  50
  51                 if(mifare_classic_auth(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST)) {
  52                         if (MF_DBGLEVEL >= 1)   Dbprintf("Auth error");
  53                         break;
  54                 };
  55
  56                 if(mifare_classic_readblock(pcs, cuid, blockNo, dataoutbuf)) {
  57                         if (MF_DBGLEVEL >= 1)   Dbprintf("Read block error");
  58                         break;
  59                 };
  60
  61                 if(mifare_classic_halt(pcs, cuid)) {
  62                         if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
  63                         break;
  64                 };
  65
  66                 isOK = 1;
  67                 break;
  68         }
  69
  70         //  ----------------------------- crypto1 destroy
  71         crypto1_destroy(pcs);
  72
  73         if (MF_DBGLEVEL >= 2)   DbpString("READ BLOCK FINISHED");
  74
  75         LED_B_ON();
  76         cmd_send(CMD_ACK,isOK,0,0,dataoutbuf,16);
  77         LED_B_OFF();
  78
  79         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
  80         LEDsoff();
  81
  82 }
  83
  84 void MifareUReadBlock(uint8_t arg0,uint8_t *datain)
  85 {
  86     // params
  87         uint8_t blockNo = arg0;
  88
  89         // variables
  90         byte_t isOK = 0;
  91         byte_t dataoutbuf[16];
  92         uint8_t uid[10];
  93         uint32_t cuid;
  94
  95         // clear trace
  96         iso14a_clear_trace();
  97         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
  98
  99         LED_A_ON();
 100         LED_B_OFF();
 101         LED_C_OFF();
 102
 103         while (true) {
 104                 if(!iso14443a_select_card(uid, NULL, &cuid)) {
 105             if (MF_DBGLEVEL >= 1)       Dbprintf("Can't select card");
 106                         break;
 107                 };
 108
 109                 if(mifare_ultra_readblock(cuid, blockNo, dataoutbuf)) {
 110             if (MF_DBGLEVEL >= 1)       Dbprintf("Read block error");
 111                         break;
 112                 };
 113
 114                 if(mifare_ultra_halt(cuid)) {
 115             if (MF_DBGLEVEL >= 1)       Dbprintf("Halt error");
 116                         break;
 117                 };
 118
 119                 isOK = 1;
 120                 break;
 121         }
 122
 123         if (MF_DBGLEVEL >= 2)   DbpString("READ BLOCK FINISHED");
 124
 125         LED_B_ON();
 126     cmd_send(CMD_ACK,isOK,0,0,dataoutbuf,16);
 127         LED_B_OFF();
 128         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 129         LEDsoff();
 130 }
 131
 132
 133 //-----------------------------------------------------------------------------
 134 // Select, Authenticate, Read a MIFARE tag.
 135 // read sector (data = 4 x 16 bytes = 64 bytes, or 16 x 16 bytes = 256 bytes)
 136 //-----------------------------------------------------------------------------
 137 void MifareReadSector(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
 138 {
 139   // params
 140         uint8_t sectorNo = arg0;
 141         uint8_t keyType = arg1;
 142         uint64_t ui64Key = 0;
 143         ui64Key = bytes_to_num(datain, 6);
 144
 145         // variables
 146         byte_t isOK = 0;
 147         byte_t dataoutbuf[16 * 16];
 148         uint8_t uid[10];
 149         uint32_t cuid;
 150         struct Crypto1State mpcs = {0, 0};
 151         struct Crypto1State *pcs;
 152         pcs = &mpcs;
 153
 154         // clear trace
 155         iso14a_clear_trace();
 156
 157         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 158
 159         LED_A_ON();
 160         LED_B_OFF();
 161         LED_C_OFF();
 162
 163         isOK = 1;
 164         if(!iso14443a_select_card(uid, NULL, &cuid)) {
 165                 isOK = 0;
 166                 if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");
 167         }
 168
 169
 170         if(isOK && mifare_classic_auth(pcs, cuid, FirstBlockOfSector(sectorNo), keyType, ui64Key, AUTH_FIRST)) {
 171                 isOK = 0;
 172                 if (MF_DBGLEVEL >= 1)   Dbprintf("Auth error");
 173         }
 174
 175         for (uint8_t blockNo = 0; isOK && blockNo < NumBlocksPerSector(sectorNo); blockNo++) {
 176                 if(mifare_classic_readblock(pcs, cuid, FirstBlockOfSector(sectorNo) + blockNo, dataoutbuf + 16 * blockNo)) {
 177                         isOK = 0;
 178                         if (MF_DBGLEVEL >= 1)   Dbprintf("Read sector %2d block %2d error", sectorNo, blockNo);
 179                         break;
 180                 }
 181         }
 182
 183         if(mifare_classic_halt(pcs, cuid)) {
 184                 if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
 185         }
 186
 187         //  ----------------------------- crypto1 destroy
 188         crypto1_destroy(pcs);
 189
 190         if (MF_DBGLEVEL >= 2) DbpString("READ SECTOR FINISHED");
 191
 192         LED_B_ON();
 193         cmd_send(CMD_ACK,isOK,0,0,dataoutbuf,16*NumBlocksPerSector(sectorNo));
 194         LED_B_OFF();
 195
 196         // Thats it...
 197         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 198         LEDsoff();
 199 }
 200
 201
 202 void MifareUReadCard(uint8_t arg0, uint8_t *datain)
 203 {
 204   // params
 205         uint8_t sectorNo = arg0;
 206
 207         // variables
 208         byte_t isOK = 0;
 209         byte_t dataoutbuf[16 * 4];
 210         uint8_t uid[10];
 211         uint32_t cuid;
 212
 213         // clear trace
 214         iso14a_clear_trace();
 215
 216                 iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 217
 218         LED_A_ON();
 219         LED_B_OFF();
 220         LED_C_OFF();
 221
 222         while (true) {
 223                 if(!iso14443a_select_card(uid, NULL, &cuid)) {
 224                 if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");
 225                         break;
 226                 };
 227                 for(int sec=0;sec<16;sec++){
 228                     if(mifare_ultra_readblock(cuid, sectorNo * 4 + sec, dataoutbuf + 4 * sec)) {
 229                     if (MF_DBGLEVEL >= 1)   Dbprintf("Read block %d error",sec);
 230                         break;
 231                     };
 232                 }
 233                 if(mifare_ultra_halt(cuid)) {
 234                 if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
 235                         break;
 236                 };
 237
 238                 isOK = 1;
 239                 break;
 240         }
 241
 242         if (MF_DBGLEVEL >= 2) DbpString("READ CARD FINISHED");
 243
 244         LED_B_ON();
 245                 cmd_send(CMD_ACK,isOK,0,0,dataoutbuf,64);
 246         LED_B_OFF();
 247
 248         // Thats it...
 249         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 250         LEDsoff();
 251
 252 }
 253
 254
 255 //-----------------------------------------------------------------------------
 256 // Select, Authenticate, Write a MIFARE tag.
 257 // read block
 258 //-----------------------------------------------------------------------------
 259 void MifareWriteBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
 260 {
 261         // params
 262         uint8_t blockNo = arg0;
 263         uint8_t keyType = arg1;
 264         uint64_t ui64Key = 0;
 265         byte_t blockdata[16];
 266
 267         ui64Key = bytes_to_num(datain, 6);
 268         memcpy(blockdata, datain + 10, 16);
 269
 270         // variables
 271         byte_t isOK = 0;
 272         uint8_t uid[10];
 273         uint32_t cuid;
 274         struct Crypto1State mpcs = {0, 0};
 275         struct Crypto1State *pcs;
 276         pcs = &mpcs;
 277
 278         // clear trace
 279         iso14a_clear_trace();
 280
 281         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 282
 283         LED_A_ON();
 284         LED_B_OFF();
 285         LED_C_OFF();
 286
 287         while (true) {
 288                         if(!iso14443a_select_card(uid, NULL, &cuid)) {
 289                         if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");
 290                         break;
 291                 };
 292
 293                 if(mifare_classic_auth(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST)) {
 294                         if (MF_DBGLEVEL >= 1)   Dbprintf("Auth error");
 295                         break;
 296                 };
 297
 298                 if(mifare_classic_writeblock(pcs, cuid, blockNo, blockdata)) {
 299                         if (MF_DBGLEVEL >= 1)   Dbprintf("Write block error");
 300                         break;
 301                 };
 302
 303                 if(mifare_classic_halt(pcs, cuid)) {
 304                         if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
 305                         break;
 306                 };
 307
 308                 isOK = 1;
 309                 break;
 310         }
 311
 312         //  ----------------------------- crypto1 destroy
 313         crypto1_destroy(pcs);
 314
 315         if (MF_DBGLEVEL >= 2)   DbpString("WRITE BLOCK FINISHED");
 316
 317         LED_B_ON();
 318         cmd_send(CMD_ACK,isOK,0,0,0,0);
 319         LED_B_OFF();
 320
 321
 322         // Thats it...
 323         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 324         LEDsoff();
 325 }
 326
 327 void MifareUWriteBlock(uint8_t arg0, uint8_t *datain)
 328 {
 329         // params
 330         uint8_t blockNo = arg0;
 331         byte_t blockdata[16];
 332
 333         memset(blockdata,'\0',16);
 334         memcpy(blockdata, datain,16);
 335
 336         // variables
 337         byte_t isOK = 0;
 338         uint8_t uid[10];
 339         uint32_t cuid;
 340
 341         // clear trace
 342         iso14a_clear_trace();
 343
 344                 iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 345
 346         LED_A_ON();
 347         LED_B_OFF();
 348         LED_C_OFF();
 349
 350         while (true) {
 351                 if(!iso14443a_select_card(uid, NULL, &cuid)) {
 352                         if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");
 353                         break;
 354                 };
 355
 356                 if(mifare_ultra_writeblock(cuid, blockNo, blockdata)) {
 357                         if (MF_DBGLEVEL >= 1)   Dbprintf("Write block error");
 358                         break;
 359                 };
 360
 361                 if(mifare_ultra_halt(cuid)) {
 362                         if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
 363                         break;
 364                 };
 365
 366                 isOK = 1;
 367                 break;
 368         }
 369
 370         if (MF_DBGLEVEL >= 2)   DbpString("WRITE BLOCK FINISHED");
 371
 372         LED_B_ON();
 373                 cmd_send(CMD_ACK,isOK,0,0,0,0);
 374         LED_B_OFF();
 375
 376
 377         // Thats it...
 378         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 379         LEDsoff();
 380 //  iso14a_set_tracing(TRUE);
 381 }
 382
 383 void MifareUWriteBlock_Special(uint8_t arg0, uint8_t *datain)
 384 {
 385         // params
 386         uint8_t blockNo = arg0;
 387         byte_t blockdata[4];
 388
 389         memcpy(blockdata, datain,4);
 390
 391         // variables
 392         byte_t isOK = 0;
 393         uint8_t uid[10];
 394         uint32_t cuid;
 395
 396         // clear trace
 397         iso14a_clear_trace();
 398
 399         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 400
 401         LED_A_ON();
 402         LED_B_OFF();
 403         LED_C_OFF();
 404
 405         while (true) {
 406                 if(!iso14443a_select_card(uid, NULL, &cuid)) {
 407                         if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");
 408                         break;
 409                 };
 410
 411                 if(mifare_ultra_special_writeblock(cuid, blockNo, blockdata)) {
 412                         if (MF_DBGLEVEL >= 1)   Dbprintf("Write block error");
 413                         break;
 414                 };
 415
 416                 if(mifare_ultra_halt(cuid)) {
 417                         if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
 418                         break;
 419                 };
 420
 421                 isOK = 1;
 422                 break;
 423         }
 424
 425         if (MF_DBGLEVEL >= 2)   DbpString("WRITE BLOCK FINISHED");
 426
 427         LED_B_ON();
 428         cmd_send(CMD_ACK,isOK,0,0,0,0);
 429         LED_B_OFF();
 430
 431         // Thats it...
 432         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 433         LEDsoff();
 434 }
 435
 436 // Return 1 if the nonce is invalid else return 0
 437 int valid_nonce(uint32_t Nt, uint32_t NtEnc, uint32_t Ks1, byte_t * parity) {
 438         return ((oddparity((Nt >> 24) & 0xFF) == ((parity[0]) ^ oddparity((NtEnc >> 24) & 0xFF) ^ BIT(Ks1,16))) & \
 439         (oddparity((Nt >> 16) & 0xFF) == ((parity[1]) ^ oddparity((NtEnc >> 16) & 0xFF) ^ BIT(Ks1,8))) & \
 440         (oddparity((Nt >> 8) & 0xFF) == ((parity[2]) ^ oddparity((NtEnc >> 8) & 0xFF) ^ BIT(Ks1,0)))) ? 1 : 0;
 441 }
 442
 443
 444 //-----------------------------------------------------------------------------
 445 // MIFARE nested authentication.
 446 //
 447 //-----------------------------------------------------------------------------
 448 void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *datain)
 449 {
 450         // params
 451         uint8_t blockNo = arg0 & 0xff;
 452         uint8_t keyType = (arg0 >> 8) & 0xff;
 453         uint8_t targetBlockNo = arg1 & 0xff;
 454         uint8_t targetKeyType = (arg1 >> 8) & 0xff;
 455         uint64_t ui64Key = 0;
 456
 457         ui64Key = bytes_to_num(datain, 6);
 458
 459         // variables
 460         uint16_t rtr, i, j, len;
 461         uint16_t davg;
 462         static uint16_t dmin, dmax;
 463         uint8_t uid[10];
 464         uint32_t cuid, nt1, nt2, nttmp, nttest, par, ks1;
 465         uint32_t target_nt[2], target_ks[2];
 466
 467         uint8_t par_array[4];
 468         uint16_t ncount = 0;
 469         struct Crypto1State mpcs = {0, 0};
 470         struct Crypto1State *pcs;
 471         pcs = &mpcs;
 472         uint8_t* receivedAnswer = mifare_get_bigbufptr();
 473
 474         uint32_t auth1_time, auth2_time;
 475         static uint16_t delta_time;
 476
 477         // clear trace
 478         iso14a_clear_trace();
 479         iso14a_set_tracing(false);
 480
 481         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 482
 483         LED_A_ON();
 484         LED_C_OFF();
 485
 486
 487         // statistics on nonce distance
 488         if (calibrate) {        // for first call only. Otherwise reuse previous calibration
 489                 LED_B_ON();
 490
 491                 davg = dmax = 0;
 492                 dmin = 2000;
 493                 delta_time = 0;
 494
 495                 for (rtr = 0; rtr < 17; rtr++) {
 496
 497                         // prepare next select. No need to power down the card.
 498                         if(mifare_classic_halt(pcs, cuid)) {
 499                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Halt error");
 500                                 rtr--;
 501                                 continue;
 502                         }
 503
 504                         if(!iso14443a_select_card(uid, NULL, &cuid)) {
 505                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Can't select card");
 506                                 rtr--;
 507                                 continue;
 508                         };
 509
 510                         auth1_time = 0;
 511                         if(mifare_classic_authex(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST, &nt1, &auth1_time)) {
 512                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Auth1 error");
 513                                 rtr--;
 514                                 continue;
 515                         };
 516
 517                         if (delta_time) {
 518                                 auth2_time = auth1_time + delta_time;
 519                         } else {
 520                                 auth2_time = 0;
 521                         }
 522                         if(mifare_classic_authex(pcs, cuid, blockNo, keyType, ui64Key, AUTH_NESTED, &nt2, &auth2_time)) {
 523                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Auth2 error");
 524                                 rtr--;
 525                                 continue;
 526                         };
 527
 528                         nttmp = prng_successor(nt1, 100);                               //NXP Mifare is typical around 840,but for some unlicensed/compatible mifare card this can be 160
 529                         for (i = 101; i < 1200; i++) {
 530                                 nttmp = prng_successor(nttmp, 1);
 531                                 if (nttmp == nt2) break;
 532                         }
 533
 534                         if (i != 1200) {
 535                                 if (rtr != 0) {
 536                                         davg += i;
 537                                         dmin = MIN(dmin, i);
 538                                         dmax = MAX(dmax, i);
 539                                 }
 540                                 else {
 541                                         delta_time = auth2_time - auth1_time + 32;  // allow some slack for proper timing
 542                                 }
 543                                 if (MF_DBGLEVEL >= 3) Dbprintf("Nested: calibrating... ntdist=%d", i);
 544                         }
 545                 }
 546
 547                 if (rtr <= 1)   return;
 548
 549                 davg = (davg + (rtr - 1)/2) / (rtr - 1);
 550
 551                 if (MF_DBGLEVEL >= 3) Dbprintf("min=%d max=%d avg=%d, delta_time=%d", dmin, dmax, davg, delta_time);
 552
 553                 dmin = davg - 2;
 554                 dmax = davg + 2;
 555
 556                 LED_B_OFF();
 557
 558         }
 559 //  -------------------------------------------------------------------------------------------------
 560
 561         LED_C_ON();
 562
 563         //  get crypted nonces for target sector
 564         for(i=0; i < 2; i++) { // look for exactly two different nonces
 565
 566                 target_nt[i] = 0;
 567                 while(target_nt[i] == 0) { // continue until we have an unambiguous nonce
 568
 569                         // prepare next select. No need to power down the card.
 570                         if(mifare_classic_halt(pcs, cuid)) {
 571                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Halt error");
 572                                 continue;
 573                         }
 574
 575                         if(!iso14443a_select_card(uid, NULL, &cuid)) {
 576                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Can't select card");
 577                                 continue;
 578                         };
 579
 580                         auth1_time = 0;
 581                         if(mifare_classic_authex(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST, &nt1, &auth1_time)) {
 582                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Auth1 error");
 583                                 continue;
 584                         };
 585
 586                         // nested authentication
 587                         auth2_time = auth1_time + delta_time;
 588                         len = mifare_sendcmd_shortex(pcs, AUTH_NESTED, 0x60 + (targetKeyType & 0x01), targetBlockNo, receivedAnswer, &par, &auth2_time);
 589                         if (len != 4) {
 590                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Auth2 error len=%d", len);
 591                                 continue;
 592                         };
 593
 594                         nt2 = bytes_to_num(receivedAnswer, 4);
 595                         if (MF_DBGLEVEL >= 3) Dbprintf("Nonce#%d: Testing nt1=%08x nt2enc=%08x nt2par=%02x", i+1, nt1, nt2, par);
 596
 597                         // Parity validity check
 598                         for (j = 0; j < 4; j++) {
 599                                 par_array[j] = (oddparity(receivedAnswer[j]) != ((par & 0x08) >> 3));
 600                                 par = par << 1;
 601                         }
 602
 603                         ncount = 0;
 604                         nttest = prng_successor(nt1, dmin - 1);
 605                         for (j = dmin; j < dmax + 1; j++) {
 606                                 nttest = prng_successor(nttest, 1);
 607                                 ks1 = nt2 ^ nttest;
 608
 609                                 if (valid_nonce(nttest, nt2, ks1, par_array)){
 610                                         if (ncount > 0) {               // we are only interested in disambiguous nonces, try again
 611                                                 if (MF_DBGLEVEL >= 3) Dbprintf("Nonce#%d: dismissed (ambigous), ntdist=%d", i+1, j);
 612                                                 target_nt[i] = 0;
 613                                                 break;
 614                                         }
 615                                         target_nt[i] = nttest;
 616                                         target_ks[i] = ks1;
 617                                         ncount++;
 618                                         if (i == 1 && target_nt[1] == target_nt[0]) { // we need two different nonces
 619                                                 target_nt[i] = 0;
 620                                                 if (MF_DBGLEVEL >= 3) Dbprintf("Nonce#2: dismissed (= nonce#1), ntdist=%d", j);
 621                                                 break;
 622                                         }
 623                                         if (MF_DBGLEVEL >= 3) Dbprintf("Nonce#%d: valid, ntdist=%d", i+1, j);
 624                                 }
 625                         }
 626                         if (target_nt[i] == 0 && j == dmax+1 && MF_DBGLEVEL >= 3) Dbprintf("Nonce#%d: dismissed (all invalid)", i+1);
 627                 }
 628         }
 629
 630         LED_C_OFF();
 631
 632         //  ----------------------------- crypto1 destroy
 633         crypto1_destroy(pcs);
 634
 635         // add trace trailer
 636         memset(uid, 0x44, 4);
 637         LogTrace(uid, 4, 0, 0, TRUE);
 638
 639         byte_t buf[4 + 4 * 4];
 640         memcpy(buf, &cuid, 4);
 641         memcpy(buf+4, &target_nt[0], 4);
 642         memcpy(buf+8, &target_ks[0], 4);
 643         memcpy(buf+12, &target_nt[1], 4);
 644         memcpy(buf+16, &target_ks[1], 4);
 645
 646         LED_B_ON();
 647         cmd_send(CMD_ACK, 0, 2, targetBlockNo + (targetKeyType * 0x100), buf, sizeof(buf));
 648         LED_B_OFF();
 649
 650         if (MF_DBGLEVEL >= 3)   DbpString("NESTED FINISHED");
 651
 652         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 653         LEDsoff();
 654         iso14a_set_tracing(TRUE);
 655 }
 656
 657 //-----------------------------------------------------------------------------
 658 // MIFARE check keys. key count up to 85.
 659 //
 660 //-----------------------------------------------------------------------------
 661 void MifareChkKeys(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
 662 {
 663   // params
 664         uint8_t blockNo = arg0;
 665         uint8_t keyType = arg1;
 666         uint8_t keyCount = arg2;
 667         uint64_t ui64Key = 0;
 668
 669         // variables
 670         int i;
 671         byte_t isOK = 0;
 672         uint8_t uid[10];
 673         uint32_t cuid;
 674         struct Crypto1State mpcs = {0, 0};
 675         struct Crypto1State *pcs;
 676         pcs = &mpcs;
 677
 678         // clear debug level
 679         int OLD_MF_DBGLEVEL = MF_DBGLEVEL;
 680         MF_DBGLEVEL = MF_DBG_NONE;
 681
 682         // clear trace
 683         iso14a_clear_trace();
 684         iso14a_set_tracing(TRUE);
 685
 686         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 687
 688         LED_A_ON();
 689         LED_B_OFF();
 690         LED_C_OFF();
 691
 692         for (i = 0; i < keyCount; i++) {
 693                 if(mifare_classic_halt(pcs, cuid)) {
 694                         if (MF_DBGLEVEL >= 1)   Dbprintf("ChkKeys: Halt error");
 695                 }
 696
 697                 if(!iso14443a_select_card(uid, NULL, &cuid)) {
 698                         if (OLD_MF_DBGLEVEL >= 1)       Dbprintf("ChkKeys: Can't select card");
 699                         break;
 700                 };
 701
 702                 ui64Key = bytes_to_num(datain + i * 6, 6);
 703                 if(mifare_classic_auth(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST)) {
 704                         continue;
 705                 };
 706
 707                 isOK = 1;
 708                 break;
 709         }
 710
 711         //  ----------------------------- crypto1 destroy
 712         crypto1_destroy(pcs);
 713
 714         LED_B_ON();
 715     cmd_send(CMD_ACK,isOK,0,0,datain + i * 6,6);
 716         LED_B_OFF();
 717
 718   // Thats it...
 719         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 720         LEDsoff();
 721
 722         // restore debug level
 723         MF_DBGLEVEL = OLD_MF_DBGLEVEL;
 724 }
 725
 726 //-----------------------------------------------------------------------------
 727 // MIFARE commands set debug level
 728 //
 729 //-----------------------------------------------------------------------------
 730 void MifareSetDbgLvl(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
 731         MF_DBGLEVEL = arg0;
 732         Dbprintf("Debug level: %d", MF_DBGLEVEL);
 733 }
 734
 735 //-----------------------------------------------------------------------------
 736 // Work with emulator memory
 737 //
 738 //-----------------------------------------------------------------------------
 739 void MifareEMemClr(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
 740         emlClearMem();
 741 }
 742
 743 void MifareEMemSet(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
 744         emlSetMem(datain, arg0, arg1); // data, block num, blocks count
 745 }
 746
 747 void MifareEMemGet(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
 748         byte_t buf[48];
 749         emlGetMem(buf, arg0, arg1); // data, block num, blocks count (max 4)
 750
 751         LED_B_ON();
 752         cmd_send(CMD_ACK,arg0,arg1,0,buf,48);
 753         LED_B_OFF();
 754 }
 755
 756 //-----------------------------------------------------------------------------
 757 // Load a card into the emulator memory
 758 //
 759 //-----------------------------------------------------------------------------
 760 void MifareECardLoad(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
 761         uint8_t numSectors = arg0;
 762         uint8_t keyType = arg1;
 763         uint64_t ui64Key = 0;
 764         uint32_t cuid;
 765         struct Crypto1State mpcs = {0, 0};
 766         struct Crypto1State *pcs;
 767         pcs = &mpcs;
 768
 769         // variables
 770         byte_t dataoutbuf[16];
 771         byte_t dataoutbuf2[16];
 772         uint8_t uid[10];
 773
 774         // clear trace
 775         iso14a_clear_trace();
 776         iso14a_set_tracing(false);
 777
 778         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 779
 780         LED_A_ON();
 781         LED_B_OFF();
 782         LED_C_OFF();
 783
 784         bool isOK = true;
 785
 786         if(!iso14443a_select_card(uid, NULL, &cuid)) {
 787                 isOK = false;
 788                 if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");
 789         }
 790
 791         for (uint8_t sectorNo = 0; isOK && sectorNo < numSectors; sectorNo++) {
 792                 ui64Key = emlGetKey(sectorNo, keyType);
 793                 if (sectorNo == 0){
 794                         if(isOK && mifare_classic_auth(pcs, cuid, FirstBlockOfSector(sectorNo), keyType, ui64Key, AUTH_FIRST)) {
 795                                 isOK = false;
 796                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Sector[%2d]. Auth error", sectorNo);
 797                                 break;
 798                         }
 799                 } else {
 800                         if(isOK && mifare_classic_auth(pcs, cuid, FirstBlockOfSector(sectorNo), keyType, ui64Key, AUTH_NESTED)) {
 801                                 isOK = false;
 802                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Sector[%2d]. Auth nested error", sectorNo);
 803                                 break;
 804                         }
 805                 }
 806
 807                 for (uint8_t blockNo = 0; isOK && blockNo < NumBlocksPerSector(sectorNo); blockNo++) {
 808                         if(isOK && mifare_classic_readblock(pcs, cuid, FirstBlockOfSector(sectorNo) + blockNo, dataoutbuf)) {
 809                                 isOK = false;
 810                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Error reading sector %2d block %2d", sectorNo, blockNo);
 811                                 break;
 812                         };
 813                         if (isOK) {
 814                                 if (blockNo < NumBlocksPerSector(sectorNo) - 1) {
 815                                         emlSetMem(dataoutbuf, FirstBlockOfSector(sectorNo) + blockNo, 1);
 816                                 } else {        // sector trailer, keep the keys, set only the AC
 817                                         emlGetMem(dataoutbuf2, FirstBlockOfSector(sectorNo) + blockNo, 1);
 818                                         memcpy(&dataoutbuf2[6], &dataoutbuf[6], 4);
 819                                         emlSetMem(dataoutbuf2,  FirstBlockOfSector(sectorNo) + blockNo, 1);
 820                                 }
 821                         }
 822                 }
 823
 824         }
 825
 826         if(mifare_classic_halt(pcs, cuid)) {
 827                 if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
 828         };
 829
 830         //  ----------------------------- crypto1 destroy
 831         crypto1_destroy(pcs);
 832
 833         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 834         LEDsoff();
 835
 836         if (MF_DBGLEVEL >= 2) DbpString("EMUL FILL SECTORS FINISHED");
 837
 838 }
 839
 840
 841 //-----------------------------------------------------------------------------
 842 // Work with "magic Chinese" card (email him: ouyangweidaxian@live.cn)
 843 //
 844 //-----------------------------------------------------------------------------
 845 void MifareCSetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
 846
 847   // params
 848         uint8_t needWipe = arg0;
 849         // bit 0 - need get UID
 850         // bit 1 - need wupC
 851         // bit 2 - need HALT after sequence
 852         // bit 3 - need init FPGA and field before sequence
 853         // bit 4 - need reset FPGA and LED
 854         uint8_t workFlags = arg1;
 855         uint8_t blockNo = arg2;
 856
 857         // card commands
 858         uint8_t wupC1[]       = { 0x40 };
 859         uint8_t wupC2[]       = { 0x43 };
 860         uint8_t wipeC[]       = { 0x41 };
 861
 862         // variables
 863         byte_t isOK = 0;
 864         uint8_t uid[10];
 865         uint8_t d_block[18];
 866         uint32_t cuid;
 867
 868         memset(uid, 0x00, 10);
 869         uint8_t* receivedAnswer = mifare_get_bigbufptr();
 870
 871         if (workFlags & 0x08) {
 872                 // clear trace
 873                 iso14a_clear_trace();
 874                 iso14a_set_tracing(TRUE);
 875
 876                 iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 877
 878                 LED_A_ON();
 879                 LED_B_OFF();
 880                 LED_C_OFF();
 881
 882                 SpinDelay(300);
 883                 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 884                 SpinDelay(100);
 885                 FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_READER_MOD);
 886         }
 887
 888         while (true) {
 889                 // get UID from chip
 890                 if (workFlags & 0x01) {
 891                         if(!iso14443a_select_card(uid, NULL, &cuid)) {
 892                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");
 893                                 break;
 894                         };
 895
 896                         if(mifare_classic_halt(NULL, cuid)) {
 897                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
 898                                 break;
 899                         };
 900                 };
 901
 902                 // reset chip
 903                 if (needWipe){
 904       ReaderTransmitBitsPar(wupC1,7,0, NULL);
 905                         if(!ReaderReceive(receivedAnswer) || (receivedAnswer[0] != 0x0a)) {
 906                                 if (MF_DBGLEVEL >= 1)   Dbprintf("wupC1 error");
 907                                 break;
 908                         };
 909
 910                         ReaderTransmit(wipeC, sizeof(wipeC), NULL);
 911                         if(!ReaderReceive(receivedAnswer) || (receivedAnswer[0] != 0x0a)) {
 912                                 if (MF_DBGLEVEL >= 1)   Dbprintf("wipeC error");
 913                                 break;
 914                         };
 915
 916                         if(mifare_classic_halt(NULL, cuid)) {
 917                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
 918                                 break;
 919                         };
 920                 };
 921
 922                 // write block
 923                 if (workFlags & 0x02) {
 924       ReaderTransmitBitsPar(wupC1,7,0, NULL);
 925                         if(!ReaderReceive(receivedAnswer) || (receivedAnswer[0] != 0x0a)) {
 926                                 if (MF_DBGLEVEL >= 1)   Dbprintf("wupC1 error");
 927                                 break;
 928                         };
 929
 930                         ReaderTransmit(wupC2, sizeof(wupC2), NULL);
 931                         if(!ReaderReceive(receivedAnswer) || (receivedAnswer[0] != 0x0a)) {
 932                                 if (MF_DBGLEVEL >= 1)   Dbprintf("wupC2 error");
 933                                 break;
 934                         };
 935                 }
 936
 937                 if ((mifare_sendcmd_short(NULL, 0, 0xA0, blockNo, receivedAnswer, NULL) != 1) || (receivedAnswer[0] != 0x0a)) {
 938                         if (MF_DBGLEVEL >= 1)   Dbprintf("write block send command error");
 939                         break;
 940                 };
 941
 942                 memcpy(d_block, datain, 16);
 943                 AppendCrc14443a(d_block, 16);
 944
 945                 ReaderTransmit(d_block, sizeof(d_block), NULL);
 946                 if ((ReaderReceive(receivedAnswer) != 1) || (receivedAnswer[0] != 0x0a)) {
 947                         if (MF_DBGLEVEL >= 1)   Dbprintf("write block send data error");
 948                         break;
 949                 };
 950
 951                 if (workFlags & 0x04) {
 952                         if (mifare_classic_halt(NULL, cuid)) {
 953                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
 954                                 break;
 955                         };
 956                 }
 957
 958                 isOK = 1;
 959                 break;
 960         }
 961
 962         LED_B_ON();
 963         cmd_send(CMD_ACK,isOK,0,0,uid,4);
 964         LED_B_OFF();
 965
 966         if ((workFlags & 0x10) || (!isOK)) {
 967                 // Thats it...
 968                 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 969                 LEDsoff();
 970         }
 971 }
 972
 973
 974 void MifareCGetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
 975
 976   // params
 977         // bit 1 - need wupC
 978         // bit 2 - need HALT after sequence
 979         // bit 3 - need init FPGA and field before sequence
 980         // bit 4 - need reset FPGA and LED
 981         uint8_t workFlags = arg0;
 982         uint8_t blockNo = arg2;
 983
 984         // card commands
 985         uint8_t wupC1[]       = { 0x40 };
 986         uint8_t wupC2[]       = { 0x43 };
 987
 988         // variables
 989         byte_t isOK = 0;
 990         uint8_t data[18];
 991         uint32_t cuid = 0;
 992
 993         memset(data, 0x00, 18);
 994         uint8_t* receivedAnswer = mifare_get_bigbufptr();
 995
 996         if (workFlags & 0x08) {
 997                 // clear trace
 998                 iso14a_clear_trace();
 999                 iso14a_set_tracing(TRUE);
1000
1001                 iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
1002
1003                 LED_A_ON();
1004                 LED_B_OFF();
1005                 LED_C_OFF();
1006
1007                 SpinDelay(300);
1008                 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
1009                 SpinDelay(100);
1010                 FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_READER_MOD);
1011         }
1012
1013         while (true) {
1014                 if (workFlags & 0x02) {
1015                         ReaderTransmitBitsPar(wupC1,7,0, NULL);
1016                         if(!ReaderReceive(receivedAnswer) || (receivedAnswer[0] != 0x0a)) {
1017                                 if (MF_DBGLEVEL >= 1)   Dbprintf("wupC1 error");
1018                                 break;
1019                         };
1020
1021                         ReaderTransmit(wupC2, sizeof(wupC2), NULL);
1022                         if(!ReaderReceive(receivedAnswer) || (receivedAnswer[0] != 0x0a)) {
1023                                 if (MF_DBGLEVEL >= 1)   Dbprintf("wupC2 error");
1024                                 break;
1025                         };
1026                 }
1027
1028                 // read block
1029                 if ((mifare_sendcmd_short(NULL, 0, 0x30, blockNo, receivedAnswer, NULL) != 18)) {
1030                         if (MF_DBGLEVEL >= 1)   Dbprintf("read block send command error");
1031                         break;
1032                 };
1033                 memcpy(data, receivedAnswer, 18);
1034
1035                 if (workFlags & 0x04) {
1036                         if (mifare_classic_halt(NULL, cuid)) {
1037                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
1038                                 break;
1039                         };
1040                 }
1041
1042                 isOK = 1;
1043                 break;
1044         }
1045
1046         LED_B_ON();
1047         cmd_send(CMD_ACK,isOK,0,0,data,18);
1048         LED_B_OFF();
1049
1050         if ((workFlags & 0x10) || (!isOK)) {
1051                 // Thats it...
1052                 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
1053                 LEDsoff();
1054         }
1055 }
1056