cvs.zerfleddert.de Git - proxmark3-svn/blob - client/cmdhf14a.c

   1 //-----------------------------------------------------------------------------
   2 // 2011, Merlok
   3 // Copyright (C) 2010 iZsh <izsh at fail0verflow.com>, Hagen Fritsch
   4 //
   5 // This code is licensed to you under the terms of the GNU GPL, version 2 or,
   6 // at your option, any later version. See the LICENSE.txt file for the text of
   7 // the license.
   8 //-----------------------------------------------------------------------------
   9 // High frequency ISO14443A commands
  10 //-----------------------------------------------------------------------------
  11
  12 #include <stdio.h>
  13 #include <stdlib.h>
  14 #include <string.h>
  15 #include <unistd.h>
  16 #include "util.h"
  17 #include "iso14443crc.h"
  18 #include "data.h"
  19 #include "proxmark3.h"
  20 #include "ui.h"
  21 #include "cmdparser.h"
  22 #include "cmdhf14a.h"
  23 #include "common.h"
  24 #include "cmdmain.h"
  25 #include "mifare.h"
  26
  27 static int CmdHelp(const char *Cmd);
  28 static void waitCmd(uint8_t iLen);
  29
  30 // structure and database for uid -> tagtype lookups
  31 typedef struct {
  32         uint8_t uid;
  33         char* desc;
  34 } manufactureName;
  35
  36 const manufactureName manufactureMapping[] = {
  37         // ID,  "Vendor Country"
  38         { 0x01, "Motorola UK" },
  39         { 0x02, "ST Microelectronics SA France" },
  40         { 0x03, "Hitachi, Ltd Japan" },
  41         { 0x04, "NXP Semiconductors Germany" },
  42         { 0x05, "Infineon Technologies AG Germany" },
  43         { 0x06, "Cylink USA" },
  44         { 0x07, "Texas Instrument France" },
  45         { 0x08, "Fujitsu Limited Japan" },
  46         { 0x09, "Matsushita Electronics Corporation, Semiconductor Company Japan" },
  47         { 0x0A, "NEC Japan" },
  48         { 0x0B, "Oki Electric Industry Co. Ltd Japan" },
  49         { 0x0C, "Toshiba Corp. Japan" },
  50         { 0x0D, "Mitsubishi Electric Corp. Japan" },
  51         { 0x0E, "Samsung Electronics Co. Ltd Korea" },
  52         { 0x0F, "Hynix / Hyundai, Korea" },
  53         { 0x10, "LG-Semiconductors Co. Ltd Korea" },
  54         { 0x11, "Emosyn-EM Microelectronics USA" },
  55         { 0x12, "INSIDE Technology France" },
  56         { 0x13, "ORGA Kartensysteme GmbH Germany" },
  57         { 0x14, "SHARP Corporation Japan" },
  58         { 0x15, "ATMEL France" },
  59         { 0x16, "EM Microelectronic-Marin SA Switzerland" },
  60         { 0x17, "KSW Microtec GmbH Germany" },
  61         { 0x18, "ZMD AG Germany" },
  62         { 0x19, "XICOR, Inc. USA" },
  63         { 0x1A, "Sony Corporation Japan Identifier Company Country" },
  64         { 0x1B, "Malaysia Microelectronic Solutions Sdn. Bhd Malaysia" },
  65         { 0x1C, "Emosyn USA" },
  66         { 0x1D, "Shanghai Fudan Microelectronics Co. Ltd. P.R. China" },
  67         { 0x1E, "Magellan Technology Pty Limited Australia" },
  68         { 0x1F, "Melexis NV BO Switzerland" },
  69         { 0x20, "Renesas Technology Corp. Japan" },
  70         { 0x21, "TAGSYS France" },
  71         { 0x22, "Transcore USA" },
  72         { 0x23, "Shanghai belling corp., ltd. China" },
  73         { 0x24, "Masktech Germany Gmbh Germany" },
  74         { 0x25, "Innovision Research and Technology Plc UK" },
  75         { 0x26, "Hitachi ULSI Systems Co., Ltd. Japan" },
  76         { 0x27, "Cypak AB Sweden" },
  77         { 0x28, "Ricoh Japan" },
  78         { 0x29, "ASK France" },
  79         { 0x2A, "Unicore Microsystems, LLC Russian Federation" },
  80         { 0x2B, "Dallas Semiconductor/Maxim USA" },
  81         { 0x2C, "Impinj, Inc. USA" },
  82         { 0x2D, "RightPlug Alliance USA" },
  83         { 0x2E, "Broadcom Corporation USA" },
  84         { 0x2F, "MStar Semiconductor, Inc Taiwan, ROC" },
  85         { 0x30, "BeeDar Technology Inc. USA" },
  86         { 0x31, "RFIDsec Denmark" },
  87         { 0x32, "Schweizer Electronic AG Germany" },
  88         { 0x33, "AMIC Technology Corp Taiwan" },
  89         { 0x34, "Mikron JSC Russia" },
  90         { 0x35, "Fraunhofer Institute for Photonic Microsystems Germany" },
  91         { 0x36, "IDS Microchip AG Switzerland" },
  92         { 0x37, "Kovio USA" },
  93         { 0x38, "HMT Microelectronic Ltd Switzerland Identifier Company Country" },
  94         { 0x39, "Silicon Craft Technology Thailand" },
  95         { 0x3A, "Advanced Film Device Inc. Japan" },
  96         { 0x3B, "Nitecrest Ltd UK" },
  97         { 0x3C, "Verayo Inc. USA" },
  98         { 0x3D, "HID Global USA" },
  99         { 0x3E, "Productivity Engineering Gmbh Germany" },
 100         { 0x3F, "Austriamicrosystems AG (reserved) Austria" },
 101         { 0x40, "Gemalto SA France" },
 102         { 0x41, "Renesas Electronics Corporation Japan" },
 103         { 0x42, "3Alogics Inc Korea" },
 104         { 0x43, "Top TroniQ Asia Limited Hong Kong" },
 105         { 0x44, "Gentag Inc (USA) USA" },
 106         { 0x00, "no tag-info available" } // must be the last entry
 107 };
 108
 109
 110 // get a product description based on the UID
 111 //              uid[8]  tag uid
 112 // returns description of the best match
 113 char* getTagInfo(uint8_t uid) {
 114
 115         int i;
 116         int len = sizeof(manufactureMapping) / sizeof(manufactureName);
 117
 118         for ( i = 0; i < len; ++i )
 119                 if ( uid == manufactureMapping[i].uid)
 120                         return manufactureMapping[i].desc;
 121
 122         //No match, return default
 123         return manufactureMapping[len-1].desc;
 124 }
 125
 126 int CmdHF14AList(const char *Cmd)
 127 {
 128         PrintAndLog("Deprecated command, use 'hf list 14a' instead");
 129         return 0;
 130 }
 131
 132 void iso14a_set_timeout(uint32_t timeout) {
 133         UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_SET_TIMEOUT, 0, timeout}};
 134         SendCommand(&c);
 135 }
 136
 137 int CmdHF14AReader(const char *Cmd)
 138 {
 139         UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_CONNECT | ISO14A_NO_DISCONNECT, 0, 0}};
 140         SendCommand(&c);
 141
 142         UsbCommand resp;
 143         WaitForResponse(CMD_ACK,&resp);
 144
 145         iso14a_card_select_t card;
 146         memcpy(&card, (iso14a_card_select_t *)resp.d.asBytes, sizeof(iso14a_card_select_t));
 147
 148         uint64_t select_status = resp.arg[0];           // 0: couldn't read, 1: OK, with ATS, 2: OK, no ATS
 149
 150         if(select_status == 0) {
 151                 PrintAndLog("iso14443a card select failed");
 152                 // disconnect
 153                 c.arg[0] = 0;
 154                 c.arg[1] = 0;
 155                 c.arg[2] = 0;
 156                 SendCommand(&c);
 157                 return 0;
 158         }
 159
 160         PrintAndLog("ATQA : %02x %02x", card.atqa[1], card.atqa[0]);
 161         PrintAndLog(" UID : %s", sprint_hex(card.uid, card.uidlen));
 162         PrintAndLog(" SAK : %02x [%d]", card.sak, resp.arg[0]);
 163
 164         // Double & triple sized UID, can be mapped to a manufacturer.
 165         // HACK: does this apply for Ultralight cards?
 166         if ( card.uidlen > 4 ) {
 167                 PrintAndLog("MANUFACTURER : %s", getTagInfo(card.uid[0]));
 168         }
 169
 170         switch (card.sak) {
 171                 case 0x00: PrintAndLog("TYPE : NXP MIFARE Ultralight | Ultralight C"); break;
 172                 case 0x01: PrintAndLog("TYPE : NXP TNP3xxx Activision Game Appliance"); break;
 173                 case 0x04: PrintAndLog("TYPE : NXP MIFARE (various !DESFire !DESFire EV1)"); break;
 174                 case 0x08: PrintAndLog("TYPE : NXP MIFARE CLASSIC 1k | Plus 2k SL1"); break;
 175                 case 0x09: PrintAndLog("TYPE : NXP MIFARE Mini 0.3k"); break;
 176                 case 0x10: PrintAndLog("TYPE : NXP MIFARE Plus 2k SL2"); break;
 177                 case 0x11: PrintAndLog("TYPE : NXP MIFARE Plus 4k SL2"); break;
 178                 case 0x18: PrintAndLog("TYPE : NXP MIFARE Classic 4k | Plus 4k SL1"); break;
 179                 case 0x20: PrintAndLog("TYPE : NXP MIFARE DESFire 4k | DESFire EV1 2k/4k/8k | Plus 2k/4k SL3 | JCOP 31/41"); break;
 180                 case 0x24: PrintAndLog("TYPE : NXP MIFARE DESFire | DESFire EV1"); break;
 181                 case 0x28: PrintAndLog("TYPE : JCOP31 or JCOP41 v2.3.1"); break;
 182                 case 0x38: PrintAndLog("TYPE : Nokia 6212 or 6131 MIFARE CLASSIC 4K"); break;
 183                 case 0x88: PrintAndLog("TYPE : Infineon MIFARE CLASSIC 1K"); break;
 184                 case 0x98: PrintAndLog("TYPE : Gemplus MPCOS"); break;
 185                 default: ;
 186         }
 187
 188         // try to request ATS even if tag claims not to support it
 189         if (select_status == 2) {
 190                 uint8_t rats[] = { 0xE0, 0x80 }; // FSDI=8 (FSD=256), CID=0
 191                 c.arg[0] = ISO14A_RAW | ISO14A_APPEND_CRC | ISO14A_NO_DISCONNECT;
 192                 c.arg[1] = 2;
 193                 c.arg[2] = 0;
 194                 memcpy(c.d.asBytes, rats, 2);
 195                 SendCommand(&c);
 196                 WaitForResponse(CMD_ACK,&resp);
 197
 198             memcpy(&card.ats, resp.d.asBytes, resp.arg[0]);
 199                 card.ats_len = resp.arg[0];                             // note: ats_len includes CRC Bytes
 200         }
 201
 202         if(card.ats_len >= 3) {                 // a valid ATS consists of at least the length byte (TL) and 2 CRC bytes
 203                 bool ta1 = 0, tb1 = 0, tc1 = 0;
 204                 int pos;
 205
 206                 if (select_status == 2) {
 207                         PrintAndLog("SAK incorrectly claims that card doesn't support RATS");
 208                 }
 209                 PrintAndLog(" ATS : %s", sprint_hex(card.ats, card.ats_len));
 210                 PrintAndLog("       -  TL : length is %d bytes", card.ats[0]);
 211                 if (card.ats[0] != card.ats_len - 2) {
 212                         PrintAndLog("ATS may be corrupted. Length of ATS (%d bytes incl. 2 Bytes CRC) doesn't match TL", card.ats_len);
 213                 }
 214
 215                 if (card.ats[0] > 1) {          // there is a format byte (T0)
 216                         ta1 = (card.ats[1] & 0x10) == 0x10;
 217                         tb1 = (card.ats[1] & 0x20) == 0x20;
 218                         tc1 = (card.ats[1] & 0x40) == 0x40;
 219                         int16_t fsci = card.ats[1] & 0x0f;
 220                         PrintAndLog("       -  T0 : TA1 is%s present, TB1 is%s present, "
 221                                         "TC1 is%s present, FSCI is %d (FSC = %ld)",
 222                                 (ta1 ? "" : " NOT"), (tb1 ? "" : " NOT"), (tc1 ? "" : " NOT"),
 223                                 fsci,
 224                                 fsci < 5 ? (fsci - 2) * 8 :
 225                                         fsci < 8 ? (fsci - 3) * 32 :
 226                                         fsci == 8 ? 256 :
 227                                         -1
 228                                 );
 229                 }
 230                 pos = 2;
 231                 if (ta1) {
 232                         char dr[16], ds[16];
 233                         dr[0] = ds[0] = '\0';
 234                         if (card.ats[pos] & 0x10) strcat(ds, "2, ");
 235                         if (card.ats[pos] & 0x20) strcat(ds, "4, ");
 236                         if (card.ats[pos] & 0x40) strcat(ds, "8, ");
 237                         if (card.ats[pos] & 0x01) strcat(dr, "2, ");
 238                         if (card.ats[pos] & 0x02) strcat(dr, "4, ");
 239                         if (card.ats[pos] & 0x04) strcat(dr, "8, ");
 240                         if (strlen(ds) != 0) ds[strlen(ds) - 2] = '\0';
 241                         if (strlen(dr) != 0) dr[strlen(dr) - 2] = '\0';
 242                         PrintAndLog("       - TA1 : different divisors are%s supported, "
 243                                         "DR: [%s], DS: [%s]",
 244                                         (card.ats[pos] & 0x80 ? " NOT" : ""), dr, ds);
 245                         pos++;
 246                 }
 247                 if (tb1) {
 248                         uint32_t sfgi = card.ats[pos] & 0x0F;
 249                         uint32_t fwi = card.ats[pos] >> 4;
 250                         PrintAndLog("       - TB1 : SFGI = %d (SFGT = %s%ld/fc), FWI = %d (FWT = %ld/fc)",
 251                                         (sfgi),
 252                                         sfgi ? "" : "(not needed) ",
 253                                         sfgi ? (1 << 12) << sfgi : 0,
 254                                         fwi,
 255                                         (1 << 12) << fwi
 256                                         );
 257                         pos++;
 258                 }
 259                 if (tc1) {
 260                         PrintAndLog("       - TC1 : NAD is%s supported, CID is%s supported",
 261                                         (card.ats[pos] & 0x01) ? "" : " NOT",
 262                                         (card.ats[pos] & 0x02) ? "" : " NOT");
 263                         pos++;
 264                 }
 265                 if (card.ats[0] > pos) {
 266                         char *tip = "";
 267                         if (card.ats[0] - pos >= 7) {
 268                                 if (memcmp(card.ats + pos, "\xC1\x05\x2F\x2F\x01\xBC\xD6", 7) == 0) {
 269                                         tip = "-> MIFARE Plus X 2K or 4K";
 270                                 } else if (memcmp(card.ats + pos, "\xC1\x05\x2F\x2F\x00\x35\xC7", 7) == 0) {
 271                                         tip = "-> MIFARE Plus S 2K or 4K";
 272                                 }
 273                         }
 274                         PrintAndLog("       -  HB : %s%s", sprint_hex(card.ats + pos, card.ats[0] - pos), tip);
 275                         if (card.ats[pos] == 0xC1) {
 276                                 PrintAndLog("               c1 -> Mifare or (multiple) virtual cards of various type");
 277                                 PrintAndLog("                  %02x -> Length is %d bytes",
 278                                                 card.ats[pos + 1], card.ats[pos + 1]);
 279                                 switch (card.ats[pos + 2] & 0xf0) {
 280                                         case 0x10:
 281                                                 PrintAndLog("                     1x -> MIFARE DESFire");
 282                                                 break;
 283                                         case 0x20:
 284                                                 PrintAndLog("                     2x -> MIFARE Plus");
 285                                                 break;
 286                                 }
 287                                 switch (card.ats[pos + 2] & 0x0f) {
 288                                         case 0x00:
 289                                                 PrintAndLog("                     x0 -> <1 kByte");
 290                                                 break;
 291                                         case 0x01:
 292                                                 PrintAndLog("                     x0 -> 1 kByte");
 293                                                 break;
 294                                         case 0x02:
 295                                                 PrintAndLog("                     x0 -> 2 kByte");
 296                                                 break;
 297                                         case 0x03:
 298                                                 PrintAndLog("                     x0 -> 4 kByte");
 299                                                 break;
 300                                         case 0x04:
 301                                                 PrintAndLog("                     x0 -> 8 kByte");
 302                                                 break;
 303                                 }
 304                                 switch (card.ats[pos + 3] & 0xf0) {
 305                                         case 0x00:
 306                                                 PrintAndLog("                        0x -> Engineering sample");
 307                                                 break;
 308                                         case 0x20:
 309                                                 PrintAndLog("                        2x -> Released");
 310                                                 break;
 311                                 }
 312                                 switch (card.ats[pos + 3] & 0x0f) {
 313                                         case 0x00:
 314                                                 PrintAndLog("                        x0 -> Generation 1");
 315                                                 break;
 316                                         case 0x01:
 317                                                 PrintAndLog("                        x1 -> Generation 2");
 318                                                 break;
 319                                         case 0x02:
 320                                                 PrintAndLog("                        x2 -> Generation 3");
 321                                                 break;
 322                                 }
 323                                 switch (card.ats[pos + 4] & 0x0f) {
 324                                         case 0x00:
 325                                                 PrintAndLog("                           x0 -> Only VCSL supported");
 326                                                 break;
 327                                         case 0x01:
 328                                                 PrintAndLog("                           x1 -> VCS, VCSL, and SVC supported");
 329                                                 break;
 330                                         case 0x0E:
 331                                                 PrintAndLog("                           xE -> no VCS command supported");
 332                                                 break;
 333                                 }
 334                         }
 335                 }
 336         } else {
 337                 PrintAndLog("proprietary non iso14443-4 card found, RATS not supported");
 338         }
 339
 340
 341         // try to see if card responses to "chinese magic backdoor" commands.
 342         c.cmd = CMD_MIFARE_CIDENT;
 343         c.arg[0] = 0;
 344         c.arg[1] = 0;
 345         c.arg[2] = 0;
 346         SendCommand(&c);
 347         WaitForResponse(CMD_ACK,&resp);
 348         uint8_t isOK  = resp.arg[0] & 0xff;
 349         PrintAndLog(" Answers to chinese magic backdoor commands: %s", (isOK ? "YES" : "NO") );
 350
 351         // disconnect
 352         c.cmd = CMD_READER_ISO_14443a;
 353         c.arg[0] = 0;
 354         c.arg[1] = 0;
 355         c.arg[2] = 0;
 356         SendCommand(&c);
 357
 358         return select_status;
 359 }
 360
 361 // Collect ISO14443 Type A UIDs
 362 int CmdHF14ACUIDs(const char *Cmd)
 363 {
 364         // requested number of UIDs
 365         int n = atoi(Cmd);
 366         // collect at least 1 (e.g. if no parameter was given)
 367         n = n > 0 ? n : 1;
 368
 369         PrintAndLog("Collecting %d UIDs", n);
 370         PrintAndLog("Start: %u", time(NULL));
 371         // repeat n times
 372         for (int i = 0; i < n; i++) {
 373                 // execute anticollision procedure
 374                 UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_CONNECT, 0, 0}};
 375                 SendCommand(&c);
 376
 377                 UsbCommand resp;
 378                 WaitForResponse(CMD_ACK,&resp);
 379
 380                 iso14a_card_select_t *card = (iso14a_card_select_t *) resp.d.asBytes;
 381
 382                 // check if command failed
 383                 if (resp.arg[0] == 0) {
 384                         PrintAndLog("Card select failed.");
 385                 } else {
 386                         char uid_string[20];
 387                         for (uint16_t i = 0; i < card->uidlen; i++) {
 388                                 sprintf(&uid_string[2*i], "%02X", card->uid[i]);
 389                         }
 390                         PrintAndLog("%s", uid_string);
 391                 }
 392         }
 393         PrintAndLog("End: %u", time(NULL));
 394
 395         return 1;
 396 }
 397
 398 // ## simulate iso14443a tag
 399 // ## greg - added ability to specify tag UID
 400 int CmdHF14ASim(const char *Cmd)
 401 {
 402         UsbCommand c = {CMD_SIMULATE_TAG_ISO_14443a,{0,0,0}};
 403
 404         // Retrieve the tag type
 405         uint8_t tagtype = param_get8ex(Cmd,0,0,10);
 406
 407         // When no argument was given, just print help message
 408         if (tagtype == 0) {
 409                 PrintAndLog("");
 410                 PrintAndLog(" Emulating ISO/IEC 14443 type A tag with 4 or 7 byte UID");
 411                 PrintAndLog("");
 412                 PrintAndLog("   syntax: hf 14a sim <type> <uid>");
 413                 PrintAndLog("    types: 1 = MIFARE Classic");
 414                 PrintAndLog("           2 = MIFARE Ultralight");
 415                 PrintAndLog("           3 = MIFARE DESFIRE");
 416                 PrintAndLog("           4 = ISO/IEC 14443-4");
 417                 PrintAndLog("           5 = MIFARE TNP3XXX");
 418                 PrintAndLog("");
 419                 return 1;
 420         }
 421
 422         // Store the tag type
 423         c.arg[0] = tagtype;
 424
 425         // Retrieve the full 4 or 7 byte long uid
 426         uint64_t long_uid = param_get64ex(Cmd,1,0,16);
 427
 428         // Are we handling the (optional) second part uid?
 429         if (long_uid > 0xffffffff) {
 430                 PrintAndLog("Emulating ISO/IEC 14443 type A tag with 7 byte UID (%014"llx")",long_uid);
 431                 // Store the second part
 432                 c.arg[2] = (long_uid & 0xffffffff);
 433                 long_uid >>= 32;
 434                 // Store the first part, ignore the first byte, it is replaced by cascade byte (0x88)
 435                 c.arg[1] = (long_uid & 0xffffff);
 436         } else {
 437                 PrintAndLog("Emulating ISO/IEC 14443 type A tag with 4 byte UID (%08x)",long_uid);
 438                 // Only store the first part
 439                 c.arg[1] = long_uid & 0xffffffff;
 440         }
 441 /*
 442                 // At lease save the mandatory first part of the UID
 443                 c.arg[0] = long_uid & 0xffffffff;
 444
 445         if (c.arg[1] == 0) {
 446                 PrintAndLog("Emulating ISO/IEC 14443 type A tag with UID %01d %08x %08x",c.arg[0],c.arg[1],c.arg[2]);
 447         }
 448
 449         switch (c.arg[0]) {
 450                 case 1: {
 451                         PrintAndLog("Emulating ISO/IEC 14443-3 type A tag with 4 byte UID");
 452                         UsbCommand c = {CMD_SIMULATE_TAG_ISO_14443a,param_get32ex(Cmd,0,0,10),param_get32ex(Cmd,1,0,16),param_get32ex(Cmd,2,0,16)};
 453                 } break;
 454                 case 2: {
 455                         PrintAndLog("Emulating ISO/IEC 14443-4 type A tag with 7 byte UID");
 456                 } break;
 457                 default: {
 458                         PrintAndLog("Error: unkown tag type (%d)",c.arg[0]);
 459                         PrintAndLog("syntax: hf 14a sim <uid>",c.arg[0]);
 460                         PrintAndLog(" type1: 4 ",c.arg[0]);
 461
 462                         return 1;
 463                 } break;
 464         }
 465 */
 466 /*
 467   unsigned int hi = 0, lo = 0;
 468   int n = 0, i = 0;
 469   while (sscanf(&Cmd[i++], "%1x", &n ) == 1) {
 470     hi= (hi << 4) | (lo >> 28);
 471     lo= (lo << 4) | (n & 0xf);
 472   }
 473 */
 474 //      UsbCommand c = {CMD_SIMULATE_TAG_ISO_14443a,param_get32ex(Cmd,0,0,10),param_get32ex(Cmd,1,0,16),param_get32ex(Cmd,2,0,16)};
 475 //  PrintAndLog("Emulating ISO/IEC 14443 type A tag with UID %01d %08x %08x",c.arg[0],c.arg[1],c.arg[2]);
 476   SendCommand(&c);
 477   return 0;
 478 }
 479
 480 int CmdHF14ASnoop(const char *Cmd) {
 481         int param = 0;
 482
 483         if (param_getchar(Cmd, 0) == 'h') {
 484                 PrintAndLog("It get data from the field and saves it into command buffer.");
 485                 PrintAndLog("Buffer accessible from command hf list 14a.");
 486                 PrintAndLog("Usage:  hf 14a snoop [c][r]");
 487                 PrintAndLog("c - triggered by first data from card");
 488                 PrintAndLog("r - triggered by first 7-bit request from reader (REQ,WUP,...)");
 489                 PrintAndLog("sample: hf 14a snoop c r");
 490                 return 0;
 491         }
 492
 493         for (int i = 0; i < 2; i++) {
 494                 char ctmp = param_getchar(Cmd, i);
 495                 if (ctmp == 'c' || ctmp == 'C') param |= 0x01;
 496                 if (ctmp == 'r' || ctmp == 'R') param |= 0x02;
 497         }
 498
 499   UsbCommand c = {CMD_SNOOP_ISO_14443a, {param, 0, 0}};
 500   SendCommand(&c);
 501   return 0;
 502 }
 503
 504 int CmdHF14ACmdRaw(const char *cmd) {
 505     UsbCommand c = {CMD_READER_ISO_14443a, {0, 0, 0}};
 506     uint8_t reply=1;
 507     uint8_t crc=0;
 508     uint8_t power=0;
 509     uint8_t active=0;
 510     uint8_t active_select=0;
 511     uint16_t numbits=0;
 512         uint16_t timeout=0;
 513         uint8_t bTimeout=0;
 514     char buf[5]="";
 515     int i=0;
 516     uint8_t data[USB_CMD_DATA_SIZE];
 517     unsigned int datalen=0, temp;
 518
 519     if (strlen(cmd)<2) {
 520         PrintAndLog("Usage: hf 14a raw [-r] [-c] [-p] [-f] [-b] [-t] <number of bits> <0A 0B 0C ... hex>");
 521         PrintAndLog("       -r    do not read response");
 522         PrintAndLog("       -c    calculate and append CRC");
 523         PrintAndLog("       -p    leave the signal field ON after receive");
 524         PrintAndLog("       -a    active signal field ON without select");
 525         PrintAndLog("       -s    active signal field ON with select");
 526         PrintAndLog("       -b    number of bits to send. Useful for send partial byte");
 527                 PrintAndLog("       -t    timeout");
 528         return 0;
 529     }
 530
 531     // strip
 532     while (*cmd==' ' || *cmd=='\t') cmd++;
 533
 534     while (cmd[i]!='\0') {
 535         if (cmd[i]==' ' || cmd[i]=='\t') { i++; continue; }
 536         if (cmd[i]=='-') {
 537             switch (cmd[i+1]) {
 538                 case 'r':
 539                     reply=0;
 540                     break;
 541                 case 'c':
 542                     crc=1;
 543                     break;
 544                 case 'p':
 545                     power=1;
 546                     break;
 547                 case 'a':
 548                     active=1;
 549                     break;
 550                 case 's':
 551                     active_select=1;
 552                     break;
 553                 case 'b':
 554                     sscanf(cmd+i+2,"%d",&temp);
 555                     numbits = temp & 0xFFFF;
 556                     i+=3;
 557                     while(cmd[i]!=' ' && cmd[i]!='\0') { i++; }
 558                     i-=2;
 559                     break;
 560                                 case 't':
 561                                         bTimeout=1;
 562                                         sscanf(cmd+i+2,"%d",&temp);
 563                                         timeout = temp & 0xFFFF;
 564                                         i+=3;
 565                                         while(cmd[i]!=' ' && cmd[i]!='\0') { i++; }
 566                                         i+=2;
 567                                         break;
 568                 default:
 569                     PrintAndLog("Invalid option");
 570                     return 0;
 571             }
 572             i+=2;
 573             continue;
 574         }
 575         if ((cmd[i]>='0' && cmd[i]<='9') ||
 576             (cmd[i]>='a' && cmd[i]<='f') ||
 577             (cmd[i]>='A' && cmd[i]<='F') ) {
 578             buf[strlen(buf)+1]=0;
 579             buf[strlen(buf)]=cmd[i];
 580             i++;
 581
 582             if (strlen(buf)>=2) {
 583                 sscanf(buf,"%x",&temp);
 584                 data[datalen]=(uint8_t)(temp & 0xff);
 585                 *buf=0;
 586                                 if (++datalen>sizeof(data)){
 587                                         if (crc)
 588                                                 PrintAndLog("Buffer is full, we can't add CRC to your data");
 589                                         break;
 590                                 }
 591             }
 592             continue;
 593         }
 594         PrintAndLog("Invalid char on input");
 595         return 0;
 596     }
 597     if(crc && datalen>0 && datalen<sizeof(data)-2)
 598     {
 599         uint8_t first, second;
 600         ComputeCrc14443(CRC_14443_A, data, datalen, &first, &second);
 601         data[datalen++] = first;
 602         data[datalen++] = second;
 603     }
 604
 605     if(active || active_select)
 606     {
 607         c.arg[0] |= ISO14A_CONNECT;
 608         if(active)
 609             c.arg[0] |= ISO14A_NO_SELECT;
 610     }
 611         if(bTimeout){
 612             #define MAX_TIMEOUT 624*105 // max timeout is 624 ms
 613         c.arg[0] |= ISO14A_SET_TIMEOUT;
 614         c.arg[2] = timeout * 105; // each bit is about 9.4 us
 615         if(c.arg[2]>MAX_TIMEOUT) {
 616             c.arg[2] = MAX_TIMEOUT;
 617             PrintAndLog("Set timeout to 624 ms. The max we can wait for response");
 618         }
 619         }
 620     if(power)
 621         c.arg[0] |= ISO14A_NO_DISCONNECT;
 622     if(datalen>0)
 623         c.arg[0] |= ISO14A_RAW;
 624
 625         // Max buffer is USB_CMD_DATA_SIZE
 626     c.arg[1] = (datalen & 0xFFFF) | (numbits << 16);
 627     memcpy(c.d.asBytes,data,datalen);
 628
 629     SendCommand(&c);
 630
 631     if (reply) {
 632         if(active_select)
 633             waitCmd(1);
 634         if(datalen>0)
 635             waitCmd(0);
 636     } // if reply
 637     return 0;
 638 }
 639
 640 static void waitCmd(uint8_t iSelect)
 641 {
 642     uint8_t *recv;
 643     UsbCommand resp;
 644     char *hexout;
 645
 646     if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
 647         recv = resp.d.asBytes;
 648         uint8_t iLen = iSelect ? resp.arg[1] : resp.arg[0];
 649         PrintAndLog("received %i octets",iLen);
 650         if(!iLen)
 651             return;
 652         hexout = (char *)malloc(iLen * 3 + 1);
 653         if (hexout != NULL) {
 654             for (int i = 0; i < iLen; i++) { // data in hex
 655                 sprintf(&hexout[i * 3], "%02X ", recv[i]);
 656             }
 657             PrintAndLog("%s", hexout);
 658             free(hexout);
 659         } else {
 660             PrintAndLog("malloc failed your client has low memory?");
 661         }
 662     } else {
 663         PrintAndLog("timeout while waiting for reply.");
 664     }
 665 }
 666
 667 static command_t CommandTable[] =
 668 {
 669   {"help",   CmdHelp,              1, "This help"},
 670   {"list",   CmdHF14AList,         0, "[Deprecated] List ISO 14443a history"},
 671   {"reader", CmdHF14AReader,       0, "Act like an ISO14443 Type A reader"},
 672   {"cuids",  CmdHF14ACUIDs,        0, "<n> Collect n>0 ISO14443 Type A UIDs in one go"},
 673   {"sim",    CmdHF14ASim,          0, "<UID> -- Fake ISO 14443a tag"},
 674   {"snoop",  CmdHF14ASnoop,        0, "Eavesdrop ISO 14443 Type A"},
 675   {"raw",    CmdHF14ACmdRaw,       0, "Send raw hex data to tag"},
 676   {NULL, NULL, 0, NULL}
 677 };
 678
 679 int CmdHF14A(const char *Cmd) {
 680         // flush
 681         WaitForResponseTimeout(CMD_ACK,NULL,100);
 682
 683         // parse
 684   CmdsParse(CommandTable, Cmd);
 685   return 0;
 686 }
 687
 688 int CmdHelp(const char *Cmd)
 689 {
 690   CmdsHelp(CommandTable);
 691   return 0;
 692 }