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

   1 /* mifare-tool - a small command-line tool for librfid mifare testing
   2  *
   3  * (C) 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/rfid_access_mifare_classic.h>
  42
  43 #include "librfid-tool.h"
  44
  45 static char *program_name;
  46
  47 static void help(void)
  48 {
  49         printf( " -h    --help          Print this help message\n"
  50                 " -r    --read          Read a mifare sector\n"
  51                 " -l    --loop-read     Loop reading a mifare sector\n"
  52                 " -s    --smartx        Read sectors 0-3 (with -k key) and 4-7 with this key\n"
  53                 " -w    --write         Write a mifare sector\n"
  54                 " -k    --key           Specify mifare access key (in hex tuples)\n"
  55                 " -b    --brute-force n Brute Force read sector n\n");
  56 }
  57
  58 static struct option mifare_opts[] = {
  59         { "key", 1, 0, 'k' },
  60         { "read", 1, 0, 'r' },
  61         { "smartx", 1, 0, 's' },
  62         { "loop-read", 1, 0, 'l' },
  63         { "write", 1 ,0, 'w' },
  64         { "help", 0, 0, 'h' },
  65         { "brute-force", 1, 0, 'b' },
  66         { 0, 0, 0, 0 }
  67 };
  68
  69 static int mifare_cl_auth(unsigned char *key, int page)
  70 {
  71         int rc;
  72
  73         rc = mfcl_set_key(ph, key);
  74         if (rc < 0) {
  75                 fprintf(stderr, "key format error\n");
  76                 return rc;
  77         }
  78         rc = mfcl_auth(ph, RFID_CMD_MIFARE_AUTH1A, page);
  79         if (rc < 0) {
  80                 fprintf(stderr, "mifare auth error\n");
  81                 return rc;
  82         } else
  83                 printf("mifare auth succeeded!\n");
  84
  85         return 0;
  86 }
  87
  88 static void mifare_l3(void)
  89 {
  90         while (l2_init(RFID_LAYER2_ISO14443A) < 0) ;
  91
  92         printf("ISO14443-3A anticollision succeeded\n");
  93
  94         while (l3_init(RFID_PROTOCOL_MIFARE_CLASSIC) < 0) ;
  95
  96         printf("Mifare card available\n");
  97 }
  98
  99 int main(int argc, char **argv)
 100 {
 101         int len, rc, c, option_index = 0;
 102         unsigned int page,uid,uid_len;
 103         char key[MIFARE_CL_KEY_LEN];
 104         char key2[MIFARE_CL_KEY_LEN];
 105         char buf[MIFARE_CL_PAGE_SIZE];
 106
 107 #ifdef  __MINGW32__
 108         program_name = argv[0];
 109 #else
 110         program_name = basename(argv[0]);
 111 #endif/*__MINGW32__*/
 112
 113         memcpy(key, MIFARE_CL_KEYA_DEFAULT_INFINEON, MIFARE_CL_KEY_LEN);
 114
 115         printf("%s - (C) 2006 by Harald Welte\n"
 116                "This program is Free Software and has "
 117                "ABSOLUTELY NO WARRANTY\n\n", program_name);
 118
 119         printf("initializing librfid\n");
 120         rfid_init();
 121
 122         if (reader_init() < 0) {
 123                 fprintf(stderr, "error opening reader\n");
 124                 exit(1);
 125         }
 126
 127         while (1) {
 128                 c = getopt_long(argc, argv, "k:r:s:l:w:b:h", mifare_opts,
 129                                 &option_index);
 130                 if (c == -1)
 131                         break;
 132
 133                 switch (c) {
 134                         int i;
 135                 case 'b':
 136                         page = atoi(optarg);
 137                         printf("key: %s\n", hexdump(key, MIFARE_CL_KEY_LEN));
 138                         len = MIFARE_CL_PAGE_SIZE;
 139                         mifare_l3();
 140                         for (i = 0; i <= 0xff; i++) {
 141                                 key[MIFARE_CL_KEY_LEN-1]=i;
 142                                 if (mifare_cl_auth(key, page) >= 0)
 143                                         printf("KEY: %s\n",hexdump(key, MIFARE_CL_KEY_LEN));
 144                         }
 145
 146                         break;
 147                 case 'k':
 148                         hexread(key, optarg, strlen(optarg));
 149                         printf("key: %s\n", hexdump(key, MIFARE_CL_KEY_LEN));
 150                         break;
 151                 case 'r':
 152                         page = atoi(optarg);
 153                         printf("read(key='%s',page=%u):",
 154                                 hexdump(key, MIFARE_CL_KEY_LEN), page);
 155                         len = MIFARE_CL_PAGE_SIZE;
 156                         mifare_l3();
 157                         if (mifare_cl_auth(key, page) < 0)
 158                                 exit(1);
 159
 160                         uid_len=sizeof(uid);
 161                         uid=0;
 162                         if(rfid_layer2_getopt(l2h,RFID_OPT_LAYER2_UID,&uid,&uid_len)>=0)
 163                             printf("UID=%08X (len=%u)\n",uid,uid_len);
 164
 165                         len=MIFARE_CL_PAGE_SIZE;
 166                         rc = rfid_protocol_read(ph, page, buf, &len);
 167                         if (rc < 0) {
 168                                 printf("\n");
 169                                 fprintf(stderr, "error during read\n");
 170                                 break;
 171                         }
 172                         printf("len=%u data=%s\n", len, hexdump(buf, len));
 173
 174                         if (page & 0x3 == 0x3) {
 175                                 struct mfcl_access_sect s;
 176                                 struct mfcl_access_exp_sect es;
 177                                 int b;
 178                                 u_int8_t recreated[4];
 179                                 mfcl_parse_access(&s, buf+6);
 180                                 printf("access b0:%u b1:%u b2:%u b3:%u\n",
 181                                         s.block[0], s.block[1],
 182                                         s.block[2], s.block[3]);
 183                                 mfcl_access_to_exp(&es, &s);
 184                                 for (b = 0; b < 3; b++)
 185                                         printf("%u: %s\n", b, mfcl_access_exp_stringify(&es.block[b]));
 186                                 printf("3: %s\n", mfcl_access_exp_acc_stringify(&es.acc));
 187 #if 0
 188                                 mfcl_compile_access(recreated, &s);
 189                                 printf("recreated; %s\n", hexdump(recreated,4));
 190 #endif
 191                         }
 192                         break;
 193                 case 's':
 194                         hexread(key2, optarg, strlen(optarg));
 195                         printf("key2: %s\n", hexdump(key2, MIFARE_CL_KEY_LEN));
 196                         len = MIFARE_CL_PAGE_SIZE;
 197                         mifare_l3();
 198                         for(page = 0; page < 8; page++) {
 199                                 if (mifare_cl_auth( page < 4 ? key : key2, page) < 0)
 200                                         exit(1);
 201
 202                                 if ( page == 0 ) {
 203                                         uid_len=sizeof(uid);
 204                                         uid=0;
 205                                         if(rfid_layer2_getopt(l2h,RFID_OPT_LAYER2_UID,&uid,&uid_len)>=0)
 206                                                 printf("UID=%08X (len=%u)\n",uid,uid_len);
 207                                 }
 208
 209                                 len=MIFARE_CL_PAGE_SIZE;
 210                                 rc = rfid_protocol_read(ph, page, buf, &len);
 211                                 if (rc < 0) {
 212                                         printf("\n");
 213                                         fprintf(stderr, "error during read\n");
 214                                         break;
 215                                 }
 216                                 printf("page=%d len=%u data=%s\n", page, len, hexdump(buf, len));
 217                         }
 218                         break;
 219                 case 'l':
 220                         page = atoi(optarg);
 221                         printf("read_loop(key='%s',page=%u):\n",
 222                                 hexdump(key, MIFARE_CL_KEY_LEN), page);
 223                         while (1) {
 224                                 mifare_l3();
 225                                 if (mifare_cl_auth(key, page) < 0)
 226                                         continue;
 227
 228                                 uid_len=sizeof(uid);
 229                                 uid=0;
 230                                 if(rfid_layer2_getopt(l2h,RFID_OPT_LAYER2_UID,&uid,&uid_len)>=0)
 231                                     printf("UID=%08X (len=%u)\n",uid,uid_len);
 232
 233                                 len=MIFARE_CL_PAGE_SIZE;
 234                                 rc = rfid_protocol_read(ph, page, buf, &len);
 235                                 if (rc < 0) {
 236                                         printf("\n");
 237                                         fprintf(stderr, "error during read\n");
 238                                         continue;
 239                                 }
 240                                 printf("%s\n", hexdump(buf, len));
 241                         }
 242                         break;
 243                 case 'w':
 244                         page = atoi(optarg);
 245                         len = strlen(argv[optind]);
 246                         len = hexread(buf, argv[optind], len);
 247                         printf("write(key='%s',page=%u):",
 248                                 hexdump(key, MIFARE_CL_KEY_LEN), page);
 249                         printf(" '%s'(%u):", hexdump(buf, len), len);
 250                         mifare_l3();
 251                         if (mifare_cl_auth(key, page) < 0)
 252                                 exit(1);
 253                         rc = rfid_protocol_write(ph, page, buf, len);
 254                         if (rc < 0) {
 255                                 printf("\n");
 256                                 fprintf(stderr, "error during write\n");
 257                                 break;
 258                         }
 259                         printf("success\n");
 260                         break;
 261                 case 'h':
 262                 default:
 263                         help();
 264                 }
 265         }
 266
 267 #if 0
 268         rfid_protocol_close(ph);
 269         rfid_protocol_fini(ph);
 270
 271         rfid_layer2_close(l2h);
 272         rfid_layer2_fini(l2h);
 273 #endif
 274         rfid_reader_close(rh);
 275         exit(0);
 276 }
 277