git.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, best = -1;
 116         int len = sizeof(manufactureMapping) / sizeof(manufactureName);
 117
 118         for ( i = 0; i < len; ++i ) {
 119                 if ( uid == manufactureMapping[i].uid) {
 120                         if (best == -1) {
 121                                 best = i;
 122                         }
 123                 }
 124         }
 125
 126         if (best>=0) return manufactureMapping[best].desc;
 127
 128         return manufactureMapping[i].desc;
 129 }
 130
 131 int CmdHF14AList(const char *Cmd)
 132 {
 133         PrintAndLog("Deprecated command, use 'hf list 14a' instead");
 134         return 0;
 135 }
 136
 137 void iso14a_set_timeout(uint32_t timeout) {
 138         UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_SET_TIMEOUT, 0, timeout}};
 139         SendCommand(&c);
 140 }
 141
 142 int CmdHF14AReader(const char *Cmd)
 143 {
 144         UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_CONNECT | ISO14A_NO_DISCONNECT, 0, 0}};
 145         SendCommand(&c);
 146
 147         UsbCommand resp;
 148         WaitForResponse(CMD_ACK,&resp);
 149
 150         iso14a_card_select_t card;
 151         memcpy(&card, (iso14a_card_select_t *)resp.d.asBytes, sizeof(iso14a_card_select_t));
 152
 153         uint64_t select_status = resp.arg[0];           // 0: couldn't read, 1: OK, with ATS, 2: OK, no ATS
 154
 155         if(select_status == 0) {
 156                 PrintAndLog("iso14443a card select failed");
 157                 // disconnect
 158                 c.arg[0] = 0;
 159                 c.arg[1] = 0;
 160                 c.arg[2] = 0;
 161                 SendCommand(&c);
 162                 return 0;
 163         }
 164
 165         PrintAndLog("ATQA : %02x %02x", card.atqa[1], card.atqa[0]);
 166         PrintAndLog(" UID : %s", sprint_hex(card.uid, card.uidlen));
 167         PrintAndLog(" SAK : %02x [%d]", card.sak, resp.arg[0]);
 168
 169         // Double & triple sized UID, can be mapped to a manufacturer.
 170         // HACK: does this apply for Ultralight cards?
 171         if ( card.uidlen > 4 ) {
 172                 PrintAndLog("MANUFACTURER : %s", getTagInfo(card.uid[0]));
 173         }
 174
 175         switch (card.sak) {
 176                 case 0x00: PrintAndLog("TYPE : NXP MIFARE Ultralight | Ultralight C"); break;
 177                 case 0x01: PrintAndLog("TYPE : NXP TNP3xxx Activision Game Appliance"); break;
 178                 case 0x04: PrintAndLog("TYPE : NXP MIFARE (various !DESFire !DESFire EV1)"); break;
 179                 case 0x08: PrintAndLog("TYPE : NXP MIFARE CLASSIC 1k | Plus 2k SL1"); break;
 180                 case 0x09: PrintAndLog("TYPE : NXP MIFARE Mini 0.3k"); break;
 181                 case 0x10: PrintAndLog("TYPE : NXP MIFARE Plus 2k SL2"); break;
 182                 case 0x11: PrintAndLog("TYPE : NXP MIFARE Plus 4k SL2"); break;
 183                 case 0x18: PrintAndLog("TYPE : NXP MIFARE Classic 4k | Plus 4k SL1"); break;
 184                 case 0x20: PrintAndLog("TYPE : NXP MIFARE DESFire 4k | DESFire EV1 2k/4k/8k | Plus 2k/4k SL3 | JCOP 31/41"); break;
 185                 case 0x24: PrintAndLog("TYPE : NXP MIFARE DESFire | DESFire EV1"); break;
 186                 case 0x28: PrintAndLog("TYPE : JCOP31 or JCOP41 v2.3.1"); break;
 187                 case 0x38: PrintAndLog("TYPE : Nokia 6212 or 6131 MIFARE CLASSIC 4K"); break;
 188                 case 0x88: PrintAndLog("TYPE : Infineon MIFARE CLASSIC 1K"); break;
 189                 case 0x98: PrintAndLog("TYPE : Gemplus MPCOS"); break;
 190                 default: ;
 191         }
 192
 193         // try to request ATS even if tag claims not to support it
 194         if (select_status == 2) {
 195                 uint8_t rats[] = { 0xE0, 0x80 }; // FSDI=8 (FSD=256), CID=0
 196                 c.arg[0] = ISO14A_RAW | ISO14A_APPEND_CRC | ISO14A_NO_DISCONNECT;
 197                 c.arg[1] = 2;
 198                 c.arg[2] = 0;
 199                 memcpy(c.d.asBytes, rats, 2);
 200                 SendCommand(&c);
 201                 WaitForResponse(CMD_ACK,&resp);
 202
 203             memcpy(&card.ats, resp.d.asBytes, resp.arg[0]);
 204                 card.ats_len = resp.arg[0];                             // note: ats_len includes CRC Bytes
 205         }
 206
 207         if(card.ats_len >= 3) {                 // a valid ATS consists of at least the length byte (TL) and 2 CRC bytes
 208                 bool ta1 = 0, tb1 = 0, tc1 = 0;
 209                 int pos;
 210
 211                 if (select_status == 2) {
 212                         PrintAndLog("SAK incorrectly claims that card doesn't support RATS");
 213                 }
 214                 PrintAndLog(" ATS : %s", sprint_hex(card.ats, card.ats_len));
 215                 PrintAndLog("       -  TL : length is %d bytes", card.ats[0]);
 216                 if (card.ats[0] != card.ats_len - 2) {
 217                         PrintAndLog("ATS may be corrupted. Length of ATS (%d bytes incl. 2 Bytes CRC) doesn't match TL", card.ats_len);
 218                 }
 219
 220                 if (card.ats[0] > 1) {          // there is a format byte (T0)
 221                         ta1 = (card.ats[1] & 0x10) == 0x10;
 222                         tb1 = (card.ats[1] & 0x20) == 0x20;
 223                         tc1 = (card.ats[1] & 0x40) == 0x40;
 224                         int16_t fsci = card.ats[1] & 0x0f;
 225                         PrintAndLog("       -  T0 : TA1 is%s present, TB1 is%s present, "
 226                                         "TC1 is%s present, FSCI is %d (FSC = %ld)",
 227                                 (ta1 ? "" : " NOT"), (tb1 ? "" : " NOT"), (tc1 ? "" : " NOT"),
 228                                 fsci,
 229                                 fsci < 5 ? (fsci - 2) * 8 :
 230                                         fsci < 8 ? (fsci - 3) * 32 :
 231                                         fsci == 8 ? 256 :
 232                                         -1
 233                                 );
 234                 }
 235                 pos = 2;
 236                 if (ta1) {
 237                         char dr[16], ds[16];
 238                         dr[0] = ds[0] = '\0';
 239                         if (card.ats[pos] & 0x10) strcat(ds, "2, ");
 240                         if (card.ats[pos] & 0x20) strcat(ds, "4, ");
 241                         if (card.ats[pos] & 0x40) strcat(ds, "8, ");
 242                         if (card.ats[pos] & 0x01) strcat(dr, "2, ");
 243                         if (card.ats[pos] & 0x02) strcat(dr, "4, ");
 244                         if (card.ats[pos] & 0x04) strcat(dr, "8, ");
 245                         if (strlen(ds) != 0) ds[strlen(ds) - 2] = '\0';
 246                         if (strlen(dr) != 0) dr[strlen(dr) - 2] = '\0';
 247                         PrintAndLog("       - TA1 : different divisors are%s supported, "
 248                                         "DR: [%s], DS: [%s]",
 249                                         (card.ats[pos] & 0x80 ? " NOT" : ""), dr, ds);
 250                         pos++;
 251                 }
 252                 if (tb1) {
 253                         uint32_t sfgi = card.ats[pos] & 0x0F;
 254                         uint32_t fwi = card.ats[pos] >> 4;
 255                         PrintAndLog("       - TB1 : SFGI = %d (SFGT = %s%ld/fc), FWI = %d (FWT = %ld/fc)",
 256                                         (sfgi),
 257                                         sfgi ? "" : "(not needed) ",
 258                                         sfgi ? (1 << 12) << sfgi : 0,
 259                                         fwi,
 260                                         (1 << 12) << fwi
 261                                         );
 262                         pos++;
 263                 }
 264                 if (tc1) {
 265                         PrintAndLog("       - TC1 : NAD is%s supported, CID is%s supported",
 266                                         (card.ats[pos] & 0x01) ? "" : " NOT",
 267                                         (card.ats[pos] & 0x02) ? "" : " NOT");
 268                         pos++;
 269                 }
 270                 if (card.ats[0] > pos) {
 271                         char *tip = "";
 272                         if (card.ats[0] - pos >= 7) {
 273                                 if (memcmp(card.ats + pos, "\xC1\x05\x2F\x2F\x01\xBC\xD6", 7) == 0) {
 274                                         tip = "-> MIFARE Plus X 2K or 4K";
 275                                 } else if (memcmp(card.ats + pos, "\xC1\x05\x2F\x2F\x00\x35\xC7", 7) == 0) {
 276                                         tip = "-> MIFARE Plus S 2K or 4K";
 277                                 }
 278                         }
 279                         PrintAndLog("       -  HB : %s%s", sprint_hex(card.ats + pos, card.ats[0] - pos), tip);
 280                         if (card.ats[pos] == 0xC1) {
 281                                 PrintAndLog("               c1 -> Mifare or (multiple) virtual cards of various type");
 282                                 PrintAndLog("                  %02x -> Length is %d bytes",
 283                                                 card.ats[pos + 1], card.ats[pos + 1]);
 284                                 switch (card.ats[pos + 2] & 0xf0) {
 285                                         case 0x10:
 286                                                 PrintAndLog("                     1x -> MIFARE DESFire");
 287                                                 break;
 288                                         case 0x20:
 289                                                 PrintAndLog("                     2x -> MIFARE Plus");
 290                                                 break;
 291                                 }
 292                                 switch (card.ats[pos + 2] & 0x0f) {
 293                                         case 0x00:
 294                                                 PrintAndLog("                     x0 -> <1 kByte");
 295                                                 break;
 296                                         case 0x01:
 297                                                 PrintAndLog("                     x0 -> 1 kByte");
 298                                                 break;
 299                                         case 0x02:
 300                                                 PrintAndLog("                     x0 -> 2 kByte");
 301                                                 break;
 302                                         case 0x03:
 303                                                 PrintAndLog("                     x0 -> 4 kByte");
 304                                                 break;
 305                                         case 0x04:
 306                                                 PrintAndLog("                     x0 -> 8 kByte");
 307                                                 break;
 308                                 }
 309                                 switch (card.ats[pos + 3] & 0xf0) {
 310                                         case 0x00:
 311                                                 PrintAndLog("                        0x -> Engineering sample");
 312                                                 break;
 313                                         case 0x20:
 314                                                 PrintAndLog("                        2x -> Released");
 315                                                 break;
 316                                 }
 317                                 switch (card.ats[pos + 3] & 0x0f) {
 318                                         case 0x00:
 319                                                 PrintAndLog("                        x0 -> Generation 1");
 320                                                 break;
 321                                         case 0x01:
 322                                                 PrintAndLog("                        x1 -> Generation 2");
 323                                                 break;
 324                                         case 0x02:
 325                                                 PrintAndLog("                        x2 -> Generation 3");
 326                                                 break;
 327                                 }
 328                                 switch (card.ats[pos + 4] & 0x0f) {
 329                                         case 0x00:
 330                                                 PrintAndLog("                           x0 -> Only VCSL supported");
 331                                                 break;
 332                                         case 0x01:
 333                                                 PrintAndLog("                           x1 -> VCS, VCSL, and SVC supported");
 334                                                 break;
 335                                         case 0x0E:
 336                                                 PrintAndLog("                           xE -> no VCS command supported");
 337                                                 break;
 338                                 }
 339                         }
 340                 }
 341         } else {
 342                 PrintAndLog("proprietary non iso14443-4 card found, RATS not supported");
 343         }
 344
 345
 346         // try to see if card responses to "chinese magic backdoor" commands.
 347         c.cmd = CMD_MIFARE_CIDENT;
 348         c.arg[0] = 0;
 349         c.arg[1] = 0;
 350         c.arg[2] = 0;
 351         SendCommand(&c);
 352         WaitForResponse(CMD_ACK,&resp);
 353         uint8_t isOK  = resp.arg[0] & 0xff;
 354         PrintAndLog(" Answers to chinese magic backdoor commands: %s", (isOK ? "YES" : "NO") );
 355
 356         // disconnect
 357         c.cmd = CMD_READER_ISO_14443a;
 358         c.arg[0] = 0;
 359         c.arg[1] = 0;
 360         c.arg[2] = 0;
 361         SendCommand(&c);
 362
 363         return select_status;
 364 }
 365
 366 // Collect ISO14443 Type A UIDs
 367 int CmdHF14ACUIDs(const char *Cmd)
 368 {
 369         // requested number of UIDs
 370         int n = atoi(Cmd);
 371         // collect at least 1 (e.g. if no parameter was given)
 372         n = n > 0 ? n : 1;
 373
 374         PrintAndLog("Collecting %d UIDs", n);
 375         PrintAndLog("Start: %u", time(NULL));
 376         // repeat n times
 377         for (int i = 0; i < n; i++) {
 378                 // execute anticollision procedure
 379                 UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_CONNECT, 0, 0}};
 380                 SendCommand(&c);
 381
 382                 UsbCommand resp;
 383                 WaitForResponse(CMD_ACK,&resp);
 384
 385                 iso14a_card_select_t *card = (iso14a_card_select_t *) resp.d.asBytes;
 386
 387                 // check if command failed
 388                 if (resp.arg[0] == 0) {
 389                         PrintAndLog("Card select failed.");
 390                 } else {
 391                         char uid_string[20];
 392                         for (uint16_t i = 0; i < card->uidlen; i++) {
 393                                 sprintf(&uid_string[2*i], "%02X", card->uid[i]);
 394                         }
 395                         PrintAndLog("%s", uid_string);
 396                 }
 397         }
 398         PrintAndLog("End: %u", time(NULL));
 399
 400         return 1;
 401 }
 402
 403 // ## simulate iso14443a tag
 404 // ## greg - added ability to specify tag UID
 405 int CmdHF14ASim(const char *Cmd)
 406 {
 407         UsbCommand c = {CMD_SIMULATE_TAG_ISO_14443a,{0,0,0}};
 408
 409         // Retrieve the tag type
 410         uint8_t tagtype = param_get8ex(Cmd,0,0,10);
 411
 412         // When no argument was given, just print help message
 413         if (tagtype == 0) {
 414                 PrintAndLog("");
 415                 PrintAndLog(" Emulating ISO/IEC 14443 type A tag with 4 or 7 byte UID");
 416                 PrintAndLog("");
 417                 PrintAndLog("   syntax: hf 14a sim <type> <uid>");
 418                 PrintAndLog("    types: 1 = MIFARE Classic");
 419                 PrintAndLog("           2 = MIFARE Ultralight");
 420                 PrintAndLog("           3 = MIFARE DESFIRE");
 421                 PrintAndLog("           4 = ISO/IEC 14443-4");
 422                 PrintAndLog("           5 = MIFARE TNP3XXX");
 423                 PrintAndLog("");
 424                 return 1;
 425         }
 426
 427         // Store the tag type
 428         c.arg[0] = tagtype;
 429
 430         // Retrieve the full 4 or 7 byte long uid
 431         uint64_t long_uid = param_get64ex(Cmd,1,0,16);
 432
 433         // Are we handling the (optional) second part uid?
 434         if (long_uid > 0xffffffff) {
 435                 PrintAndLog("Emulating ISO/IEC 14443 type A tag with 7 byte UID (%014"llx")",long_uid);
 436                 // Store the second part
 437                 c.arg[2] = (long_uid & 0xffffffff);
 438                 long_uid >>= 32;
 439                 // Store the first part, ignore the first byte, it is replaced by cascade byte (0x88)
 440                 c.arg[1] = (long_uid & 0xffffff);
 441         } else {
 442                 PrintAndLog("Emulating ISO/IEC 14443 type A tag with 4 byte UID (%08x)",long_uid);
 443                 // Only store the first part
 444                 c.arg[1] = long_uid & 0xffffffff;
 445         }
 446 /*
 447                 // At lease save the mandatory first part of the UID
 448                 c.arg[0] = long_uid & 0xffffffff;
 449
 450         if (c.arg[1] == 0) {
 451                 PrintAndLog("Emulating ISO/IEC 14443 type A tag with UID %01d %08x %08x",c.arg[0],c.arg[1],c.arg[2]);
 452         }
 453
 454         switch (c.arg[0]) {
 455                 case 1: {
 456                         PrintAndLog("Emulating ISO/IEC 14443-3 type A tag with 4 byte UID");
 457                         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)};
 458                 } break;
 459                 case 2: {
 460                         PrintAndLog("Emulating ISO/IEC 14443-4 type A tag with 7 byte UID");
 461                 } break;
 462                 default: {
 463                         PrintAndLog("Error: unkown tag type (%d)",c.arg[0]);
 464                         PrintAndLog("syntax: hf 14a sim <uid>",c.arg[0]);
 465                         PrintAndLog(" type1: 4 ",c.arg[0]);
 466
 467                         return 1;
 468                 } break;
 469         }
 470 */
 471 /*
 472   unsigned int hi = 0, lo = 0;
 473   int n = 0, i = 0;
 474   while (sscanf(&Cmd[i++], "%1x", &n ) == 1) {
 475     hi= (hi << 4) | (lo >> 28);
 476     lo= (lo << 4) | (n & 0xf);
 477   }
 478 */
 479 //      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)};
 480 //  PrintAndLog("Emulating ISO/IEC 14443 type A tag with UID %01d %08x %08x",c.arg[0],c.arg[1],c.arg[2]);
 481   SendCommand(&c);
 482   return 0;
 483 }
 484
 485 int CmdHF14ASnoop(const char *Cmd) {
 486         int param = 0;
 487
 488         if (param_getchar(Cmd, 0) == 'h') {
 489                 PrintAndLog("It get data from the field and saves it into command buffer.");
 490                 PrintAndLog("Buffer accessible from command hf list 14a.");
 491                 PrintAndLog("Usage:  hf 14a snoop [c][r]");
 492                 PrintAndLog("c - triggered by first data from card");
 493                 PrintAndLog("r - triggered by first 7-bit request from reader (REQ,WUP,...)");
 494                 PrintAndLog("sample: hf 14a snoop c r");
 495                 return 0;
 496         }
 497
 498         for (int i = 0; i < 2; i++) {
 499                 char ctmp = param_getchar(Cmd, i);
 500                 if (ctmp == 'c' || ctmp == 'C') param |= 0x01;
 501                 if (ctmp == 'r' || ctmp == 'R') param |= 0x02;
 502         }
 503
 504   UsbCommand c = {CMD_SNOOP_ISO_14443a, {param, 0, 0}};
 505   SendCommand(&c);
 506   return 0;
 507 }
 508
 509 int CmdHF14ACmdRaw(const char *cmd) {
 510     UsbCommand c = {CMD_READER_ISO_14443a, {0, 0, 0}};
 511     uint8_t reply=1;
 512     uint8_t crc=0;
 513     uint8_t power=0;
 514     uint8_t active=0;
 515     uint8_t active_select=0;
 516     uint16_t numbits=0;
 517         uint16_t timeout=0;
 518         uint8_t bTimeout=0;
 519     char buf[5]="";
 520     int i=0;
 521     uint8_t data[USB_CMD_DATA_SIZE];
 522     unsigned int datalen=0, temp;
 523
 524     if (strlen(cmd)<2) {
 525         PrintAndLog("Usage: hf 14a raw [-r] [-c] [-p] [-f] [-b] [-t] <number of bits> <0A 0B 0C ... hex>");
 526         PrintAndLog("       -r    do not read response");
 527         PrintAndLog("       -c    calculate and append CRC");
 528         PrintAndLog("       -p    leave the signal field ON after receive");
 529         PrintAndLog("       -a    active signal field ON without select");
 530         PrintAndLog("       -s    active signal field ON with select");
 531         PrintAndLog("       -b    number of bits to send. Useful for send partial byte");
 532                 PrintAndLog("       -t    timeout");
 533         return 0;
 534     }
 535
 536     // strip
 537     while (*cmd==' ' || *cmd=='\t') cmd++;
 538
 539     while (cmd[i]!='\0') {
 540         if (cmd[i]==' ' || cmd[i]=='\t') { i++; continue; }
 541         if (cmd[i]=='-') {
 542             switch (cmd[i+1]) {
 543                 case 'r':
 544                     reply=0;
 545                     break;
 546                 case 'c':
 547                     crc=1;
 548                     break;
 549                 case 'p':
 550                     power=1;
 551                     break;
 552                 case 'a':
 553                     active=1;
 554                     break;
 555                 case 's':
 556                     active_select=1;
 557                     break;
 558                 case 'b':
 559                     sscanf(cmd+i+2,"%d",&temp);
 560                     numbits = temp & 0xFFFF;
 561                     i+=3;
 562                     while(cmd[i]!=' ' && cmd[i]!='\0') { i++; }
 563                     i-=2;
 564                     break;
 565                                 case 't':
 566                                         bTimeout=1;
 567                                         sscanf(cmd+i+2,"%d",&temp);
 568                                         timeout = temp & 0xFFFF;
 569                                         i+=3;
 570                                         while(cmd[i]!=' ' && cmd[i]!='\0') { i++; }
 571                                         i+=2;
 572                                         break;
 573                 default:
 574                     PrintAndLog("Invalid option");
 575                     return 0;
 576             }
 577             i+=2;
 578             continue;
 579         }
 580         if ((cmd[i]>='0' && cmd[i]<='9') ||
 581             (cmd[i]>='a' && cmd[i]<='f') ||
 582             (cmd[i]>='A' && cmd[i]<='F') ) {
 583             buf[strlen(buf)+1]=0;
 584             buf[strlen(buf)]=cmd[i];
 585             i++;
 586
 587             if (strlen(buf)>=2) {
 588                 sscanf(buf,"%x",&temp);
 589                 data[datalen]=(uint8_t)(temp & 0xff);
 590                 *buf=0;
 591                                 if (++datalen>sizeof(data)){
 592                                         if (crc)
 593                                                 PrintAndLog("Buffer is full, we can't add CRC to your data");
 594                                         break;
 595                                 }
 596             }
 597             continue;
 598         }
 599         PrintAndLog("Invalid char on input");
 600         return 0;
 601     }
 602     if(crc && datalen>0 && datalen<sizeof(data)-2)
 603     {
 604         uint8_t first, second;
 605         ComputeCrc14443(CRC_14443_A, data, datalen, &first, &second);
 606         data[datalen++] = first;
 607         data[datalen++] = second;
 608     }
 609
 610     if(active || active_select)
 611     {
 612         c.arg[0] |= ISO14A_CONNECT;
 613         if(active)
 614             c.arg[0] |= ISO14A_NO_SELECT;
 615     }
 616         if(bTimeout){
 617             #define MAX_TIMEOUT 624*105 // max timeout is 624 ms
 618         c.arg[0] |= ISO14A_SET_TIMEOUT;
 619         c.arg[2] = timeout * 105; // each bit is about 9.4 us
 620         if(c.arg[2]>MAX_TIMEOUT) {
 621             c.arg[2] = MAX_TIMEOUT;
 622             PrintAndLog("Set timeout to 624 ms. The max we can wait for response");
 623         }
 624         }
 625     if(power)
 626         c.arg[0] |= ISO14A_NO_DISCONNECT;
 627     if(datalen>0)
 628         c.arg[0] |= ISO14A_RAW;
 629
 630         // Max buffer is USB_CMD_DATA_SIZE
 631     c.arg[1] = (datalen & 0xFFFF) | (numbits << 16);
 632     memcpy(c.d.asBytes,data,datalen);
 633
 634     SendCommand(&c);
 635
 636     if (reply) {
 637         if(active_select)
 638             waitCmd(1);
 639         if(datalen>0)
 640             waitCmd(0);
 641     } // if reply
 642     return 0;
 643 }
 644
 645 static void waitCmd(uint8_t iSelect)
 646 {
 647     uint8_t *recv;
 648     UsbCommand resp;
 649     char *hexout;
 650
 651     if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
 652         recv = resp.d.asBytes;
 653         uint8_t iLen = iSelect ? resp.arg[1] : resp.arg[0];
 654         PrintAndLog("received %i octets",iLen);
 655         if(!iLen)
 656             return;
 657         hexout = (char *)malloc(iLen * 3 + 1);
 658         if (hexout != NULL) {
 659             for (int i = 0; i < iLen; i++) { // data in hex
 660                 sprintf(&hexout[i * 3], "%02X ", recv[i]);
 661             }
 662             PrintAndLog("%s", hexout);
 663             free(hexout);
 664         } else {
 665             PrintAndLog("malloc failed your client has low memory?");
 666         }
 667     } else {
 668         PrintAndLog("timeout while waiting for reply.");
 669     }
 670 }
 671
 672 static command_t CommandTable[] =
 673 {
 674   {"help",   CmdHelp,              1, "This help"},
 675   {"list",   CmdHF14AList,         0, "[Deprecated] List ISO 14443a history"},
 676   {"reader", CmdHF14AReader,       0, "Act like an ISO14443 Type A reader"},
 677   {"cuids",  CmdHF14ACUIDs,        0, "<n> Collect n>0 ISO14443 Type A UIDs in one go"},
 678   {"sim",    CmdHF14ASim,          0, "<UID> -- Fake ISO 14443a tag"},
 679   {"snoop",  CmdHF14ASnoop,        0, "Eavesdrop ISO 14443 Type A"},
 680   {"raw",    CmdHF14ACmdRaw,       0, "Send raw hex data to tag"},
 681   {NULL, NULL, 0, NULL}
 682 };
 683
 684 int CmdHF14A(const char *Cmd) {
 685         // flush
 686         WaitForResponseTimeout(CMD_ACK,NULL,100);
 687
 688         // parse
 689   CmdsParse(CommandTable, Cmd);
 690   return 0;
 691 }
 692
 693 int CmdHelp(const char *Cmd)
 694 {
 695   CmdsHelp(CommandTable);
 696   return 0;
 697 }