git.rot13.org Git - librfid/blob - utils/librfid-tool.c

   1 /* librfid-tool - a small command-line tool for librfid testing
   2  *
   3  * (C) 2005-2006 by Harald Welte <laforge@gnumonks.org>
   4  *
   5  *  This program is free software; you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License version 2
   7  *  as published by the Free Software Foundation
   8  *
   9  *  This program is distributed in the hope that it will be useful,
  10  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  *  GNU General Public License for more details.
  13  *
  14  *  You should have received a copy of the GNU General Public License
  15  *  along with this program; if not, write to the Free Software
  16  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
  17  */
  18
  19 #include <stdio.h>
  20 #include <unistd.h>
  21 #include <stdlib.h>
  22 #include <string.h>
  23 #include <errno.h>
  24
  25 #ifndef __MINGW32__
  26 #include <libgen.h>
  27 #endif
  28
  29 #define _GNU_SOURCE
  30 #include <getopt.h>
  31
  32 #include <librfid/rfid.h>
  33 #include <librfid/rfid_scan.h>
  34 #include <librfid/rfid_reader.h>
  35 #include <librfid/rfid_layer2.h>
  36 #include <librfid/rfid_protocol.h>
  37
  38 #include <librfid/rfid_protocol_mifare_classic.h>
  39 #include <librfid/rfid_protocol_mifare_ul.h>
  40
  41 #include "librfid-tool.h"
  42
  43
  44 static int select_mf(void)
  45 {
  46         unsigned char cmd[] = { 0x00, 0xa4, 0x00, 0x00, 0x02, 0x3f, 0x00, 0x00 };
  47         unsigned char ret[256];
  48         unsigned int rlen = sizeof(ret);
  49
  50         int rv;
  51
  52         rv = rfid_protocol_transceive(ph, cmd, sizeof(cmd), ret, &rlen, 0, 0);
  53         if (rv < 0)
  54                 return rv;
  55
  56         printf("%d: [%s]\n", rlen, hexdump(ret, rlen));
  57
  58         return 0;
  59 }
  60
  61
  62 static int iso7816_get_challenge(unsigned char len)
  63 {
  64         unsigned char cmd[] = { 0x00, 0x84, 0x00, 0x00, 0x08 };
  65         unsigned char ret[256];
  66         unsigned int rlen = sizeof(ret);
  67
  68         cmd[4] = len;
  69
  70         int rv;
  71
  72         rv = rfid_protocol_transceive(ph, cmd, sizeof(cmd), ret, &rlen, 0, 0);
  73         if (rv < 0)
  74                 return rv;
  75
  76         printf("%d: [%s]\n", rlen, hexdump(ret, rlen));
  77
  78         return 0;
  79 }
  80
  81 int
  82 iso7816_select_application(void)
  83 {
  84         unsigned char cmd[] = { 0x00, 0xa4, 0x04, 0x0c, 0x07,
  85                        0xa0, 0x00, 0x00, 0x02, 0x47, 0x10, 0x01 };
  86         unsigned char resp[7];
  87         unsigned int rlen = sizeof(resp);
  88
  89         int rv;
  90
  91         rv = rfid_protocol_transceive(ph, cmd, sizeof(cmd), resp, &rlen, 0, 0);
  92         if (rv < 0)
  93                 return rv;
  94
  95         /* FIXME: parse response */
  96         printf("%s\n", hexdump(resp, rlen));
  97
  98         return 0;
  99 }
 100
 101 int
 102 iso7816_select_ef(u_int16_t fid)
 103 {
 104         unsigned char cmd[7] = { 0x00, 0xa4, 0x02, 0x0c, 0x02, 0x00, 0x00 };
 105         unsigned char resp[7];
 106         unsigned int rlen = sizeof(resp);
 107
 108         int rv;
 109
 110         cmd[5] = (fid >> 8) & 0xff;
 111         cmd[6] = fid & 0xff;
 112
 113         rv = rfid_protocol_transceive(ph, cmd, sizeof(cmd), resp, &rlen, 0, 0);
 114         if (rv < 0)
 115                 return rv;
 116
 117         /* FIXME: parse response */
 118         printf("%s\n", hexdump(resp, rlen));
 119
 120         return 0;
 121 }
 122
 123 int
 124 iso7816_read_binary(unsigned char *buf, unsigned int *len)
 125 {
 126         unsigned char cmd[] = { 0x00, 0xb0, 0x00, 0x00, 0x00 };
 127         unsigned char resp[256];
 128         unsigned int rlen = sizeof(resp);
 129
 130         int rv;
 131
 132         rv = rfid_protocol_transceive(ph, cmd, sizeof(cmd), resp, &rlen, 0, 0);
 133         if (rv < 0)
 134                 return rv;
 135
 136         printf("%s\n", hexdump(resp, rlen));
 137
 138         /* FIXME: parse response, determine whether we need additional reads */
 139
 140         /* FIXME: copy 'len' number of response bytes to 'buf' */
 141         return 0;
 142 }
 143
 144 /* wrapper function around SELECT EF and READ BINARY */
 145 int
 146 iso7816_read_ef(u_int16_t fid, unsigned char *buf, unsigned int *len)
 147 {
 148         int rv;
 149
 150         rv = iso7816_select_ef(fid);
 151         if (rv < 0)
 152                 return rv;
 153
 154         return iso7816_read_binary(buf, len);
 155 }
 156
 157 /* mifare ultralight helpers */
 158 int
 159 mifare_ulight_write(struct rfid_protocol_handle *ph)
 160 {
 161         unsigned char buf[4] = { 0xa1, 0xa2, 0xa3, 0xa4 };
 162
 163         return rfid_protocol_write(ph, 10, buf, 4);
 164 }
 165
 166 int
 167 mifare_ulight_blank(struct rfid_protocol_handle *ph)
 168 {
 169         unsigned char buf[4] = { 0x00, 0x00, 0x00, 0x00 };
 170         int i, ret;
 171
 172         for (i = 4; i <= MIFARE_UL_PAGE_MAX; i++) {
 173                 ret = rfid_protocol_write(ph, i, buf, 4);
 174                 if (ret < 0)
 175                         return ret;
 176         }
 177         return 0;
 178 }
 179
 180 static int
 181 mifare_ulight_read(struct rfid_protocol_handle *ph)
 182 {
 183         unsigned char buf[20];
 184         unsigned int len = sizeof(buf);
 185         int ret;
 186         int i;
 187
 188         for (i = 0; i <= MIFARE_UL_PAGE_MAX; i++) {
 189                 ret = rfid_protocol_read(ph, i, buf, &len);
 190                 if (ret < 0)
 191                         return ret;
 192
 193                 printf("Page 0x%x: %s\n", i, hexdump(buf, 4));
 194         }
 195         return 0;
 196 }
 197
 198 /* mifare classic helpers */
 199 static int
 200 mifare_classic_read_sector(struct rfid_protocol_handle *ph, int sector)
 201 {
 202         unsigned char buf[20];
 203         unsigned int len = sizeof(buf);
 204         int ret;
 205         int block;
 206
 207         /* FIXME: make this work for sectors > 31 */
 208         printf("Reading sector %u\n", sector);
 209
 210         for (block = sector*4; block < sector*4+4; block++) {
 211                 printf("Reading block %u: ", block);
 212                 ret = rfid_protocol_read(ph, block, buf, &len);
 213                 if(ret == -ETIMEDOUT)
 214                         fprintf(stderr, "TIMEOUT\n");
 215                 if (ret < 0) {
 216                         printf("Error %d reading\n", ret);
 217                         return ret;
 218                 }
 219
 220                 printf("Page 0x%x: %s\n", block, hexdump(buf, len));
 221         }
 222         return 0;
 223 }
 224
 225 static char *proto_names[] = {
 226         [RFID_PROTOCOL_TCL] = "tcl",
 227         [RFID_PROTOCOL_MIFARE_UL] = "mifare-ultralight",
 228         [RFID_PROTOCOL_MIFARE_CLASSIC] = "mifare-classic",
 229 };
 230
 231 static int proto_by_name(const char *name)
 232 {
 233         int i;
 234
 235         for (i = 0; i < ARRAY_SIZE(proto_names); i++) {
 236                 if (proto_names[i] == NULL)
 237                         continue;
 238                 if (!strcasecmp(name, proto_names[i]))
 239                         return i;
 240         }
 241         return -1;
 242 }
 243
 244 static char *l2_names[] = {
 245         [RFID_LAYER2_ISO14443A] = "iso14443a",
 246         [RFID_LAYER2_ISO14443B] = "iso14443b",
 247         [RFID_LAYER2_ISO15693] = "iso15693",
 248 };
 249
 250 static int l2_by_name(const char *name)
 251 {
 252         int i;
 253
 254         for (i = 0; i < ARRAY_SIZE(l2_names); i++) {
 255                 if (l2_names[i] == NULL)
 256                         continue;
 257                 if (!strcasecmp(name, l2_names[i]))
 258                         return i;
 259         }
 260         return -1;
 261 }
 262
 263 static void do_scan(void)
 264 {
 265         int rc;
 266         unsigned int size;
 267         unsigned int size_len = sizeof(size);
 268
 269         printf("scanning for RFID token...\n");
 270         rc = rfid_scan(rh, &l2h, &ph);
 271         if (rc >= 2) {
 272                 unsigned char uid_buf[16];
 273                 unsigned int uid_len = sizeof(uid_buf);
 274                 rfid_layer2_getopt(l2h, RFID_OPT_LAYER2_UID, &uid_buf,
 275                                    &uid_len);
 276                 printf("Layer 2 success (%s): %s\n", rfid_layer2_name(l2h),
 277                         hexdump(uid_buf, uid_len));
 278         }
 279         if (rc >= 3) {
 280                 printf("Protocol success (%s)\n", rfid_protocol_name(ph));
 281
 282                 if (rfid_protocol_getopt(ph, RFID_OPT_PROTO_SIZE,
 283                                          &size, &size_len) == 0)
 284                         printf("Size: %u bytes\n", size);
 285         }
 286 }
 287
 288 #define OPTION_OFFSET 256
 289
 290 static struct option original_opts[] = {
 291         { "help", 0, 0, 'h' },
 292         { "layer2", 1, 0, 'l' },
 293         { "protocol", 1, 0, 'p' },
 294         { "scan", 0, 0, 's' },
 295         { "scan-loop", 0, 0, 'S' },
 296         {0, 0, 0, 0}
 297 };
 298
 299 /* module / option merging code */
 300 static struct option *opts = original_opts;
 301 static unsigned int global_option_offset = 0;
 302
 303 static char *program_name;
 304 static char *program_version = LIBRFID_TOOL_VERSION;
 305
 306 static void free_opts(int reset_offset)
 307 {
 308         if (opts != original_opts) {
 309                 free(opts);
 310                 opts = original_opts;
 311                 if (reset_offset)
 312                         global_option_offset = 0;
 313         }
 314 }
 315
 316 static struct option *
 317 merge_options(struct option *oldopts, const struct option *newopts,
 318               unsigned int *option_offset)
 319 {
 320         unsigned int num_old, num_new, i;
 321         struct option *merge;
 322
 323         for (num_old = 0; oldopts[num_old].name; num_old++);
 324         for (num_new = 0; oldopts[num_new].name; num_new++);
 325
 326         global_option_offset += OPTION_OFFSET;
 327         *option_offset = global_option_offset;
 328
 329         merge = malloc(sizeof(struct option) * (num_new + num_old + 1));
 330         memcpy(merge, oldopts, num_old * sizeof(struct option));
 331         free_opts(0); /* Release previous options merged if any */
 332         for (i = 0; i < num_new; i++) {
 333                 merge[num_old + i] = newopts[i];
 334                 merge[num_old + i].val += *option_offset;
 335         }
 336         memset(merge + num_old + num_new, 0, sizeof(struct option));
 337
 338         return merge;
 339 }
 340
 341 struct rfidtool_module *find_module(const char *name)
 342 {
 343         return NULL;
 344 }
 345
 346 void register_module(struct rfidtool_module *me)
 347 {
 348         struct rfidtool_module *old;
 349
 350         if (strcmp(me->version, program_version) != 0) {
 351                 fprintf(stderr, "%s: target `%s' v%s (I'm v%s).\n",
 352                         program_name, me->name, me->version, program_version);
 353                 exit(1);
 354         }
 355
 356         old = find_module(me->name);
 357         if (old) {
 358                 fprintf(stderr, "%s: target `%s' already registered.\n",
 359                         program_name, me->name);
 360                 exit(1);
 361         }
 362 }
 363
 364 static void help(void)
 365 {
 366         printf( " -s    --scan          scan until first RFID tag is found\n"
 367                 " -S    --scan-loop     endless scanning loop\n"
 368                 " -p    --protocol      {tcl,mifare-ultralight,mifare-classic}\n"
 369                 " -l    --layer2        {iso14443a,iso14443b,iso15693}\n"
 370                 " -h    --help\n");
 371 }
 372
 373 int main(int argc, char **argv)
 374 {
 375         int rc;
 376         char buf[0x100];
 377         int i, len, protocol = -1, layer2 = -1;
 378
 379 #ifdef  __MINGW32__
 380         program_name = argv[0];
 381 #else /*__MINGW32__*/
 382         program_name = basename(argv[0]);
 383 #endif/*__MINGW32__*/
 384
 385         printf("%s - (C) 2006 by Harald Welte\n"
 386                "This program is Free Software and has "
 387                "ABSOLUTELY NO WARRANTY\n\n", program_name);
 388
 389         printf("initializing librfid\n");
 390         rfid_init();
 391
 392         while (1) {
 393                 int c, option_index = 0;
 394                 c = getopt_long(argc, argv, "hp:l:sS", opts, &option_index);
 395                 if (c == -1)
 396                         break;
 397
 398                 switch (c) {
 399                 case 's':
 400                         if (reader_init() < 0)
 401                                 exit(1);
 402                         do_scan();
 403                         exit(0);
 404                         break;
 405                 case 'S':
 406                         if (reader_init() < 0)
 407                                 exit(1);
 408                         while (1)
 409                                 do_scan();
 410                         exit(0);
 411                         break;
 412                 case 'p':
 413                         protocol = proto_by_name(optarg);
 414                         if (protocol < 0) {
 415                                 fprintf(stderr, "unknown protocol `%s'\n",
 416                                         optarg);
 417                                 exit(2);
 418                         }
 419                         break;
 420                 case 'l':
 421                         layer2 = l2_by_name(optarg);
 422                         if (layer2 < 0) {
 423                                 fprintf(stderr, "unknown layer2 `%s'\n",
 424                                         optarg);
 425                                 exit(2);
 426                         }
 427                         break;
 428                 case 'h':
 429                         help();
 430                         exit(0);
 431                         break;
 432                 }
 433         }
 434
 435         switch (protocol) {
 436         case RFID_PROTOCOL_MIFARE_UL:
 437         case RFID_PROTOCOL_MIFARE_CLASSIC:
 438                 layer2 = RFID_LAYER2_ISO14443A;
 439                 break;
 440         case -1:
 441                 fprintf(stderr, "you have to specify --protocol\n");
 442                 exit(2);
 443         }
 444
 445         if (layer2 < 0) {
 446                 fprintf(stderr, "you have to specify --layer2\n");
 447                 exit(2);
 448         }
 449
 450         if (reader_init() < 0)
 451                 exit(1);
 452
 453         if (l2_init(layer2) < 0)
 454                 exit(1);
 455
 456         if (l3_init(protocol) < 0)
 457                 exit(1);
 458
 459         switch (protocol) {
 460
 461         case RFID_PROTOCOL_TCL:
 462                 printf("Protocol T=CL\n");
 463                 /* we've established T=CL at this point */
 464                 printf("selecting Master File\n");
 465                 rc = select_mf();
 466                 if (rc < 0) {
 467                         printf("error selecting MF\n");
 468                         break;
 469                 }
 470
 471                 printf("Getting random challenge, length 255\n");
 472                 rc = iso7816_get_challenge(0xff);
 473                 if (rc < 0) {
 474                         printf("error getting random challenge\n");
 475                         break;
 476                 }
 477
 478                 printf("selecting Passport application\n");
 479                 rc = iso7816_select_application();
 480                 if (rc < 0) {
 481                         printf("error selecting passport application\n");
 482                         break;
 483                 }
 484
 485                 printf("selecting EF 0x1e\n");
 486                 rc = iso7816_select_ef(0x011e);
 487                 if (rc < 0) {
 488                         printf("error selecting EF 0x1e\n");
 489                         break;
 490                 }
 491
 492                 printf("selecting EF 0x01\n");
 493                 rc = iso7816_select_ef(0x0101);
 494                 if (rc < 0) {
 495                         printf("error selecting EF 0x01\n");
 496                         break;
 497                 }
 498
 499                 while (1) {
 500                         printf("reading EF1\n");
 501                         len = sizeof(buf);
 502                         printf("reading ef\n");
 503                         rc = iso7816_read_binary(buf, &len);
 504                         if (rc < 0) {
 505                                 printf("error reading EF\n");
 506                                 break;
 507                         }
 508                 }
 509 #if 0
 510                 for (i = 0; i < 4; i++)
 511                         iso7816_get_challenge(0xff);
 512 #endif
 513                 break;
 514         case RFID_PROTOCOL_MIFARE_UL:
 515                 printf("Protocol Mifare Ultralight\n");
 516                 mifare_ulight_read(ph);
 517 #if 0
 518                 mifare_ulight_blank(ph);
 519                 mifare_ulight_write(ph);
 520                 mifare_ulight_read(ph);
 521 #endif
 522                 break;
 523         case RFID_PROTOCOL_MIFARE_CLASSIC:
 524                 printf("Protocol Mifare Classic\n");
 525                 {
 526                         int sector;
 527                         for (sector = 0; sector < 31; sector++) {
 528                                 printf("Authenticating sector %u: ", sector);
 529                                 fflush(stdout);
 530                                 rc = mfcl_set_key(ph, MIFARE_CL_KEYA_DEFAULT_INFINEON);
 531                                 if (rc < 0) {
 532                                         printf("key format error\n");
 533                                         exit(1);
 534                                 }
 535                                 rc = mfcl_auth(ph, RFID_CMD_MIFARE_AUTH1A, sector*4);
 536                                 if (rc < 0) {
 537                                         printf("mifare auth error\n");
 538                                         exit(1);
 539                                 } else
 540                                         printf("mifare auth succeeded!\n");
 541
 542                                 mifare_classic_read_sector(ph, sector);
 543                         }
 544                 }
 545                 break;
 546         default:
 547                 printf("unknown protocol\n");
 548                 exit(1);
 549                 break;
 550         }
 551
 552         rfid_reader_close(rh);
 553
 554         exit(0);
 555 }