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