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

   1 //-----------------------------------------------------------------------------
   2 // Ultralight Code (c) 2013,2014 Midnitesnake & Andy Davies of Pentura
   3 //
   4 // This code is licensed to you under the terms of the GNU GPL, version 2 or,
   5 // at your option, any later version. See the LICENSE.txt file for the text of
   6 // the license.
   7 //-----------------------------------------------------------------------------
   8 // High frequency MIFARE ULTRALIGHT (C) commands
   9 //-----------------------------------------------------------------------------
  10 #include <openssl/des.h>
  11 #include "cmdhfmfu.h"
  12 #include "cmdhfmf.h"
  13 #include "cmdhf14a.h"
  14
  15
  16 uint8_t MAX_ULTRA_BLOCKS   = 0x0f;
  17 uint8_t MAX_ULTRAC_BLOCKS  = 0x2c;
  18 uint8_t key1_blnk_data[16] = { 0x00 };
  19 uint8_t key2_defa_data[16] = { 0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f };
  20 uint8_t key3_3des_data[16] = { 0x49,0x45,0x4D,0x4B,0x41,0x45,0x52,0x42,0x21,0x4E,0x41,0x43,0x55,0x4F,0x59,0x46 };
  21 uint8_t key4_nfc_data[16]  = { 0x42,0x52,0x45,0x41,0x4b,0x4d,0x45,0x49,0x46,0x59,0x4f,0x55,0x43,0x41,0x4e,0x21 };
  22 uint8_t key5_ones_data[16] = { 0x01 };
  23
  24 static int CmdHelp(const char *Cmd);
  25
  26 int CmdHF14AMfUInfo(const char *Cmd){
  27
  28     uint8_t datatemp[7] = {0x00};
  29     uint8_t isOK  = 0;
  30     uint8_t *data = NULL;
  31
  32     UsbCommand c = {CMD_MIFAREU_READCARD, {0, 4}};
  33     SendCommand(&c);
  34     UsbCommand resp;
  35
  36     if (WaitForResponseTimeout(CMD_ACK, &resp, 1500)) {
  37         isOK  = resp.arg[0] & 0xff;
  38         data  = resp.d.asBytes;
  39
  40         if (!isOK) {
  41                         PrintAndLog("Error reading from tag");
  42                         return -1;
  43                 }
  44         } else {
  45                 PrintAndLog("Command execute timed out");
  46                 return -1;
  47         }
  48
  49         PrintAndLog("");
  50         PrintAndLog("-- Mifare Ultralight / Ultralight-C Tag Information ---------");
  51         PrintAndLog("-------------------------------------------------------------");
  52
  53         // UID
  54         memcpy( datatemp, data, 3);
  55         memcpy( datatemp+3, data+4, 4);
  56
  57         PrintAndLog("MANUFACTURER : %s", getTagInfo(datatemp[0]));
  58         PrintAndLog("         UID : %s ", sprint_hex(datatemp, 7));
  59         // BBC
  60         // CT (cascade tag byte) 0x88 xor SN0 xor SN1 xor SN2
  61         int crc0 = 0x88 ^ data[0] ^ data[1] ^data[2];
  62         if ( data[3] == crc0 )
  63                 PrintAndLog("        BCC0 : %02x - Ok", data[3]);
  64         else
  65                 PrintAndLog("        BCC0 : %02x - crc should be %02x", data[3], crc0);
  66
  67         int crc1 = data[4] ^ data[5] ^ data[6] ^data[7];
  68         if ( data[8] == crc1 )
  69                 PrintAndLog("        BCC1 : %02x - Ok", data[8]);
  70         else
  71                 PrintAndLog("        BCC1 : %02x - crc should be %02x", data[8], crc1 );
  72
  73         PrintAndLog("    Internal : %s ", sprint_hex(data + 9, 1));
  74
  75         memcpy(datatemp, data+10, 2);
  76         PrintAndLog("        Lock : %s - %s", sprint_hex(datatemp, 2),printBits( 2, &datatemp) );
  77         PrintAndLog("  OneTimePad : %s ", sprint_hex(data + 3*4, 4));
  78         PrintAndLog("");
  79
  80         int len = CmdHF14AMfucAuth("K 0");
  81 //      PrintAndLog("CODE: %d",len);
  82
  83         PrintAndLog("Seems to be a Ultralight %s", (len==0) ? "-C" :"");
  84         return 0;
  85 }
  86
  87 //
  88 //  Mifare Ultralight Write Single Block
  89 //
  90 int CmdHF14AMfUWrBl(const char *Cmd){
  91     uint8_t blockNo    = 0;
  92     bool chinese_card  = FALSE;
  93     uint8_t bldata[16] = {0x00};
  94     UsbCommand resp;
  95
  96         char cmdp = param_getchar(Cmd, 0);
  97         if (strlen(Cmd) < 3 || cmdp == 'h' || cmdp == 'H') {
  98         PrintAndLog("Usage:  hf mfu wrbl <block number> <block data (8 hex symbols)> [w]");
  99                 PrintAndLog("       [block number]");
 100                 PrintAndLog("       [block data] - (8 hex symbols)");
 101                 PrintAndLog("       [w] - Chinese magic ultralight tag");
 102                 PrintAndLog("");
 103         PrintAndLog("        sample: hf mfu wrbl 0 01020304");
 104                 PrintAndLog("");
 105         return 0;
 106     }
 107
 108         blockNo = param_get8(Cmd, 0);
 109     if (blockNo > MAX_ULTRA_BLOCKS){
 110         PrintAndLog("Error: Maximum number of blocks is 15 for Ultralight Cards!");
 111         return 1;
 112     }
 113
 114     if (param_gethex(Cmd, 1, bldata, 8)) {
 115         PrintAndLog("Block data must include 8 HEX symbols");
 116         return 1;
 117     }
 118
 119     if (strchr(Cmd,'w') != 0  || strchr(Cmd,'W') != 0 ) {
 120         chinese_card = TRUE;
 121     }
 122
 123     if ( blockNo <= 3) {
 124                 if (!chinese_card){
 125                         PrintAndLog("Access Denied");
 126                 } else {
 127                         PrintAndLog("--specialblock no:%02x", blockNo);
 128                         PrintAndLog("--data: %s", sprint_hex(bldata, 4));
 129                         UsbCommand d = {CMD_MIFAREU_WRITEBL, {blockNo}};
 130                         memcpy(d.d.asBytes,bldata, 4);
 131                         SendCommand(&d);
 132                         if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
 133                                 uint8_t isOK  = resp.arg[0] & 0xff;
 134                                 PrintAndLog("isOk:%02x", isOK);
 135                         } else {
 136                                 PrintAndLog("Command execute timeout");
 137                         }
 138                 }
 139         } else {
 140             PrintAndLog("--block no:%02x", blockNo);
 141             PrintAndLog("--data: %s", sprint_hex(bldata, 4));
 142             UsbCommand e = {CMD_MIFAREU_WRITEBL, {blockNo}};
 143                 memcpy(e.d.asBytes,bldata, 4);
 144                 SendCommand(&e);
 145         if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
 146             uint8_t isOK  = resp.arg[0] & 0xff;
 147             PrintAndLog("isOk:%02x", isOK);
 148         } else {
 149             PrintAndLog("Command execute timeout");
 150         }
 151     }
 152     return 0;
 153 }
 154
 155 //
 156 //  Mifare Ultralight Read Single Block
 157 //
 158 int CmdHF14AMfURdBl(const char *Cmd){
 159
 160     uint8_t blockNo = 0;
 161
 162         char cmdp = param_getchar(Cmd, 0);
 163
 164         if (strlen(Cmd) < 1 || cmdp == 'h' || cmdp == 'H') {
 165         PrintAndLog("Usage:  hf mfu rdbl <block number>");
 166         PrintAndLog("        sample: hfu mfu rdbl 0");
 167         return 0;
 168     }
 169
 170     blockNo = param_get8(Cmd, 0);
 171     // if (blockNo>MAX_ULTRA_BLOCKS){
 172        // PrintAndLog("Error: Maximum number of blocks is 15 for Ultralight Cards!");
 173        // return 1;
 174     // }
 175     PrintAndLog("--block no:0x%02X (%d)", (int)blockNo, blockNo);
 176     UsbCommand c = {CMD_MIFAREU_READBL, {blockNo}};
 177     SendCommand(&c);
 178
 179     UsbCommand resp;
 180     if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
 181         uint8_t isOK    = resp.arg[0] & 0xff;
 182         uint8_t * data  = resp.d.asBytes;
 183
 184                 PrintAndLog("isOk: %02x", isOK);
 185
 186         if (isOK)
 187             PrintAndLog("Data: %s", sprint_hex(data, 4));
 188         } else {
 189         PrintAndLog("Command execute timeout");
 190     }
 191     return 0;
 192 }
 193
 194 //
 195 //  Mifare Ultralight / Ultralight-C;  Read and Dump Card Contents
 196 //
 197 int CmdHF14AMfUDump(const char *Cmd){
 198
 199     FILE *fout;
 200         char filename[FILE_PATH_SIZE] = {0x00};
 201         char * fnameptr = filename;
 202
 203     uint8_t *lockbytes_t = NULL;
 204     uint8_t lockbytes[2] = {0x00};
 205
 206     uint8_t *lockbytes_t2 = NULL;
 207     uint8_t lockbytes2[2] = {0x00};
 208
 209     bool bit[16]  = {0x00};
 210         bool bit2[16] = {0x00};
 211
 212     int i;
 213     uint8_t BlockNo      = 0;
 214     int Pages            = 16;
 215
 216         bool tmplockbit          = false;
 217     uint8_t isOK         = 0;
 218     uint8_t *data       = NULL;
 219
 220         char cmdp = param_getchar(Cmd, 0);
 221
 222         if (cmdp == 'h' || cmdp == 'H') {
 223                 PrintAndLog("Reads all pages from Mifare Ultralight or Ultralight-C tag.");
 224                 PrintAndLog("It saves binary dump into the file `filename.bin` or `cardUID.bin`");
 225                 PrintAndLog("Usage:  hf mfu dump <c> <filename w/o .bin>");
 226                 PrintAndLog("     <c>  optional cardtype c == Ultralight-C, if not defaults to Ultralight");
 227                 PrintAndLog("     sample: hf mfu dump");
 228                 PrintAndLog("           : hf mfu dump myfile");
 229                 PrintAndLog("           : hf mfu dump c myfile");
 230                 return 0;
 231         }
 232
 233         // UL or UL-C?
 234         Pages = (cmdp == 'c' || cmdp == 'C') ? 44 : 16;
 235
 236         PrintAndLog("Dumping Ultralight%s Card Data...", (Pages ==16)?"":"-C");
 237
 238     UsbCommand c = {CMD_MIFAREU_READCARD, {BlockNo,Pages}};
 239     SendCommand(&c);
 240     UsbCommand resp;
 241
 242     if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
 243                 isOK  = resp.arg[0] & 0xff;
 244         if (!isOK) {
 245                         PrintAndLog("Command error");
 246                         return 0;
 247                 }
 248                 data  = resp.d.asBytes;
 249         } else {
 250                 PrintAndLog("Command execute timeout");
 251                 return 0;
 252         }
 253
 254         // Load lock bytes.
 255         int j = 0;
 256
 257         lockbytes_t = data + 8;
 258         lockbytes[0] = lockbytes_t[2];
 259         lockbytes[1] = lockbytes_t[3];
 260         for(j = 0; j < 16; j++){
 261                 bit[j] = lockbytes[j/8] & ( 1 <<(7-j%8));
 262         }
 263
 264         // Load bottom lockbytes if available
 265         if ( Pages == 44 ) {
 266
 267                 lockbytes_t2 = data + (40*4);
 268                 lockbytes2[0] = lockbytes_t2[2];
 269                 lockbytes2[1] = lockbytes_t2[3];
 270                 for (j = 0; j < 16; j++) {
 271                         bit2[j] = lockbytes2[j/8] & ( 1 <<(7-j%8));
 272                 }
 273         }
 274
 275         for (i = 0; i < Pages; ++i) {
 276
 277                 if ( i < 3 ) {
 278                         PrintAndLog("Block %02x:%s ", i,sprint_hex(data + i * 4, 4));
 279                         continue;
 280                 }
 281
 282                 switch(i){
 283                         case 3: tmplockbit = bit[4]; break;
 284                         case 4: tmplockbit = bit[3]; break;
 285                         case 5: tmplockbit = bit[2]; break;
 286                         case 6: tmplockbit = bit[1]; break;
 287                         case 7: tmplockbit = bit[0]; break;
 288                         case 8: tmplockbit = bit[15]; break;
 289                         case 9: tmplockbit = bit[14]; break;
 290                         case 10: tmplockbit = bit[13]; break;
 291                         case 11: tmplockbit = bit[12]; break;
 292                         case 12: tmplockbit = bit[11]; break;
 293                         case 13: tmplockbit = bit[10]; break;
 294                         case 14: tmplockbit = bit[9]; break;
 295                         case 15: tmplockbit = bit[8]; break;
 296                         case 16:
 297                         case 17:
 298                         case 18:
 299                         case 19: tmplockbit = bit2[6]; break;
 300                         case 20:
 301                         case 21:
 302                         case 22:
 303                         case 23: tmplockbit = bit2[5]; break;
 304                         case 24:
 305                         case 25:
 306                         case 26:
 307                         case 27: tmplockbit = bit2[4]; break;
 308                         case 28:
 309                         case 29:
 310                         case 30:
 311                         case 31: tmplockbit = bit2[2]; break;
 312                         case 32:
 313                         case 33:
 314                         case 34:
 315                         case 35: tmplockbit = bit2[1]; break;
 316                         case 36:
 317                         case 37:
 318                         case 38:
 319                         case 39: tmplockbit = bit2[0]; break;
 320                         case 40: tmplockbit = bit2[12]; break;
 321                         case 41: tmplockbit = bit2[11]; break;
 322                         case 42: tmplockbit = bit2[10]; break; //auth0
 323                         case 43: tmplockbit = bit2[9]; break;  //auth1
 324                         default: break;
 325                 }
 326                 PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),tmplockbit);
 327         }
 328
 329         int len = 0;
 330         if ( Pages == 16 )
 331                 len = param_getstr(Cmd,0,filename);
 332         else
 333                 len = param_getstr(Cmd,1,filename);
 334
 335         if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE;
 336
 337         // user supplied filename?
 338         if (len < 1) {
 339
 340                 // UID = data 0-1-2 4-5-6-7  (skips a beat)
 341                 sprintf(fnameptr, "%02X", data[0]);
 342                 fnameptr += 2;
 343                 sprintf(fnameptr, "%02X", data[1]);
 344                 fnameptr += 2;
 345                 sprintf(fnameptr, "%02X", data[2]);
 346                 fnameptr += 2;
 347                 sprintf(fnameptr, "%02X", data[4]);
 348                 fnameptr += 2;
 349                 sprintf(fnameptr, "%02X", data[5]);
 350                 fnameptr += 2;
 351                 sprintf(fnameptr, "%02X", data[6]);
 352                 fnameptr += 2;
 353                 sprintf(fnameptr, "%02X", data[7]);
 354                 fnameptr += 2;
 355
 356         } else {
 357                 fnameptr += len;
 358         }
 359
 360         // add file extension
 361         sprintf(fnameptr, ".bin");
 362
 363         if ((fout = fopen(filename,"wb")) == NULL) {
 364                 PrintAndLog("Could not create file name %s", filename);
 365                 return 1;
 366         }
 367         fwrite( data, 1, Pages*4, fout );
 368         fclose(fout);
 369
 370         PrintAndLog("Dumped %d pages, wrote %d bytes to %s", Pages, Pages*4, filename);
 371     return 0;
 372 }
 373
 374 // Needed to Authenticate to Ultralight C tags
 375 void rol (uint8_t *data, const size_t len){
 376     uint8_t first = data[0];
 377     for (size_t i = 0; i < len-1; i++) {
 378         data[i] = data[i+1];
 379     }
 380     data[len-1] = first;
 381 }
 382
 383 //-------------------------------------------------------------------------------
 384 // Ultralight C Methods
 385 //-------------------------------------------------------------------------------
 386
 387 //
 388 // Ultralight C Authentication Demo {currently uses hard-coded key}
 389 //
 390 int CmdHF14AMfucAuth(const char *Cmd){
 391
 392     uint8_t blockNo = 0, keyNo = 0;
 393     uint8_t e_RndB[8] = {0x00};
 394     uint32_t cuid = 0;
 395     unsigned char RndARndB[16] = {0x00};
 396     uint8_t key[16] = {0x00};
 397     DES_cblock RndA, RndB;
 398     DES_cblock iv;
 399     DES_key_schedule ks1,ks2;
 400     DES_cblock key1,key2;
 401
 402         char cmdp = param_getchar(Cmd, 0);
 403         //
 404         memset(iv, 0, 8);
 405
 406     if (cmdp == 'h' || cmdp == 'H') {
 407         PrintAndLog("Usage:  hf mfu cauth k <key number>");
 408                 PrintAndLog("      1 = all zeros key");
 409                 PrintAndLog("      2 = 0x00-0x0F key");
 410                 PrintAndLog("      3 = nfc key");
 411                 PrintAndLog("      4 = all ones key");
 412                 PrintAndLog("      defaults to 3DES standard key");
 413         PrintAndLog("        sample : hf mfu cauth k");
 414                 PrintAndLog("               : hf mfu cauth k 3");
 415         return 0;
 416     }
 417
 418     //Change key to user defined one
 419     if (cmdp == 'k' || cmdp == 'K'){
 420
 421                 keyNo = param_get8(Cmd, 1);
 422
 423                 switch(keyNo){
 424             case 0:
 425                 memcpy(key,key1_blnk_data,16);
 426                 break;
 427             case 1:
 428                 memcpy(key,key2_defa_data,16);
 429                 break;
 430                         case 2:
 431                 memcpy(key,key4_nfc_data,16);
 432                 break;
 433                         case 3:
 434                                 memcpy(key,key5_ones_data,16);
 435                 break;
 436             default:
 437                 memcpy(key,key3_3des_data,16);
 438                 break;
 439         }
 440     } else {
 441         memcpy(key,key3_3des_data,16);
 442     }
 443
 444     memcpy(key1,key,8);
 445     memcpy(key2,key+8,8);
 446     DES_set_key((DES_cblock *)key1,&ks1);
 447     DES_set_key((DES_cblock *)key2,&ks2);
 448
 449         //Auth1
 450         UsbCommand c = {CMD_MIFAREUC_AUTH1, {blockNo}};
 451         SendCommand(&c);
 452         UsbCommand resp;
 453         if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
 454                 uint8_t isOK  = resp.arg[0] & 0xff;
 455                 cuid  = resp.arg[1];
 456                 uint8_t * data= resp.d.asBytes;
 457
 458                 if (isOK){
 459                         PrintAndLog("enc(RndB):%s", sprint_hex(data+1, 8));
 460                         memcpy(e_RndB,data+1,8);
 461                 } else {
 462                         return 2; // auth failed.
 463                 }
 464         } else {
 465                 PrintAndLog("Command execute timeout");
 466                 return 1;
 467         }
 468
 469     //Do crypto magic
 470     DES_random_key(&RndA);
 471     DES_ede2_cbc_encrypt(e_RndB,RndB,sizeof(e_RndB),&ks1,&ks2,&iv,0);
 472     PrintAndLog("     RndB:%s",sprint_hex(RndB, 8));
 473     PrintAndLog("     RndA:%s",sprint_hex(RndA, 8));
 474     rol(RndB,8);
 475     memcpy(RndARndB,RndA,8);
 476     memcpy(RndARndB+8,RndB,8);
 477     PrintAndLog("     RA+B:%s",sprint_hex(RndARndB, 16));
 478     DES_ede2_cbc_encrypt(RndARndB,RndARndB,sizeof(RndARndB),&ks1,&ks2,&e_RndB,1);
 479     PrintAndLog("enc(RA+B):%s",sprint_hex(RndARndB, 16));
 480
 481     //Auth2
 482     UsbCommand d = {CMD_MIFAREUC_AUTH2, {cuid}};
 483     memcpy(d.d.asBytes,RndARndB, 16);
 484     SendCommand(&d);
 485
 486         UsbCommand respb;
 487         if (WaitForResponseTimeout(CMD_ACK,&respb,1500)) {
 488                 uint8_t  isOK  = respb.arg[0] & 0xff;
 489                 uint8_t * data2= respb.d.asBytes;
 490
 491                 if (isOK){
 492                         PrintAndLog("enc(RndA'):%s", sprint_hex(data2+1, 8));
 493                 } else {
 494                         return 2;
 495                 }
 496
 497         } else {
 498                 PrintAndLog("Command execute timeout");
 499                 return 1;
 500         }
 501     return 0;
 502 }
 503
 504 //
 505 // Ultralight C Read Single Block
 506 //
 507 int CmdHF14AMfUCRdBl(const char *Cmd)
 508 {
 509     uint8_t blockNo = -1;
 510         char cmdp = param_getchar(Cmd, 0);
 511
 512         if (strlen(Cmd) < 1 || cmdp == 'h' || cmdp == 'H') {
 513         PrintAndLog("Usage:  hf mfu crdbl  <block number>");
 514         PrintAndLog("        sample: hf mfu crdbl 0");
 515         return 0;
 516     }
 517
 518     blockNo = param_get8(Cmd, 0);
 519         if (blockNo < 0) {
 520                 PrintAndLog("Wrong block number");
 521                 return 1;
 522         }
 523
 524     if (blockNo > (MAX_ULTRAC_BLOCKS+4) ){
 525         PrintAndLog("Error: Maximum number of readable blocks is 47 for Ultralight-C Cards!");
 526         return 1;
 527     }
 528
 529     PrintAndLog("--block no: 0x%02X (%d)", (int)blockNo, blockNo);
 530
 531     //Read Block
 532     UsbCommand e = {CMD_MIFAREU_READBL, {blockNo}};
 533     SendCommand(&e);
 534     UsbCommand resp_c;
 535     if (WaitForResponseTimeout(CMD_ACK,&resp_c,1500)) {
 536         uint8_t isOK = resp_c.arg[0] & 0xff;
 537         uint8_t *data = resp_c.d.asBytes;
 538
 539                 PrintAndLog("isOk: %02x", isOK);
 540         if (isOK)
 541             PrintAndLog("Data: %s", sprint_hex(data, 4));
 542
 543         } else {
 544                 PrintAndLog("Command execute timeout");
 545         }
 546     return 0;
 547 }
 548
 549 //
 550 //  Mifare Ultralight C Write Single Block
 551 //
 552 int CmdHF14AMfUCWrBl(const char *Cmd){
 553
 554     uint8_t blockNo = 0;
 555     bool chinese_card = FALSE;
 556     uint8_t bldata[16] = {0x00};
 557     UsbCommand resp;
 558
 559         char cmdp = param_getchar(Cmd, 0);
 560
 561         if (strlen(Cmd) < 3 || cmdp == 'h' || cmdp == 'H') {
 562         PrintAndLog("Usage:  hf mfu cwrbl <block number> <block data (8 hex symbols)> [w]");
 563                 PrintAndLog("       [block number]");
 564                 PrintAndLog("       [block data] - (8 hex symbols)");
 565                 PrintAndLog("       [w] - Chinese magic ultralight tag");
 566                 PrintAndLog("");
 567         PrintAndLog("        sample: hf mfu cwrbl 0 01020304");
 568                 PrintAndLog("");
 569         return 0;
 570     }
 571
 572     blockNo = param_get8(Cmd, 0);
 573     if (blockNo > (MAX_ULTRAC_BLOCKS+4) ){
 574         PrintAndLog("Error: Maximum number of blocks is 47 for Ultralight-C Cards!");
 575         return 1;
 576     }
 577
 578     if (param_gethex(Cmd, 1, bldata, 8)) {
 579         PrintAndLog("Block data must include 8 HEX symbols");
 580         return 1;
 581     }
 582
 583     if (strchr(Cmd,'w') != 0  || strchr(Cmd,'W') != 0 ) {
 584         chinese_card = TRUE;
 585     }
 586
 587         if ( blockNo <= 3 ) {
 588                 if (!chinese_card){
 589                          PrintAndLog("Access Denied");
 590                 } else {
 591                         PrintAndLog("--Special block no: 0x%02x", blockNo);
 592                         PrintAndLog("--Data: %s", sprint_hex(bldata, 4));
 593                         UsbCommand d = {CMD_MIFAREU_WRITEBL, {blockNo}};
 594                         memcpy(d.d.asBytes,bldata, 4);
 595                         SendCommand(&d);
 596                         if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
 597                                 uint8_t isOK  = resp.arg[0] & 0xff;
 598                                 PrintAndLog("isOk:%02x", isOK);
 599                         } else {
 600                                 PrintAndLog("Command execute timeout");
 601                         }
 602                 }
 603         } else {
 604             PrintAndLog("--Block no : 0x%02x", blockNo);
 605             PrintAndLog("--Data: %s", sprint_hex(bldata, 4));
 606             UsbCommand e = {CMD_MIFAREU_WRITEBL, {blockNo}};
 607             memcpy(e.d.asBytes,bldata, 4);
 608             SendCommand(&e);
 609             if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
 610                 uint8_t isOK  = resp.arg[0] & 0xff;
 611                 PrintAndLog("isOk : %02x", isOK);
 612             } else {
 613                 PrintAndLog("Command execute timeout");
 614             }
 615         }
 616         return 0;
 617 }
 618
 619 //------------------------------------
 620 // Menu Stuff
 621 //------------------------------------
 622 static command_t CommandTable[] =
 623 {
 624     {"help",    CmdHelp,                        1,"This help"},
 625     {"dbg",             CmdHF14AMfDbg,          0,"Set default debug mode"},
 626         {"info",        CmdHF14AMfUInfo,        0,"Taginfo"},
 627         {"dump",        CmdHF14AMfUDump,        0,"Dump MIFARE Ultralight / Ultralight-C tag to binary file"},
 628     {"rdbl",    CmdHF14AMfURdBl,        0,"Read block - MIFARE Ultralight"},
 629     {"wrbl",    CmdHF14AMfUWrBl,        0,"Write block - MIFARE Ultralight"},
 630     {"crdbl",   CmdHF14AMfUCRdBl,       0,"Read block - MIFARE Ultralight C"},
 631     {"cwrbl",   CmdHF14AMfUCWrBl,       0,"Write MIFARE Ultralight C block"},
 632         {"cauth",       CmdHF14AMfucAuth,       0,"try a Ultralight C Authentication"},
 633     {NULL, NULL, 0, NULL}
 634 };
 635
 636 int CmdHFMFUltra(const char *Cmd){
 637     WaitForResponseTimeout(CMD_ACK,NULL,100);
 638     CmdsParse(CommandTable, Cmd);
 639     return 0;
 640 }
 641
 642 int CmdHelp(const char *Cmd){
 643     CmdsHelp(CommandTable);
 644     return 0;
 645 }