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
  91         int retry;
  92
  93         while (l2_init(RFID_LAYER2_ISO14443A) < 0) ;
  94
  95         printf("ISO14443-3A anticollision succeeded\n");
  96
  97         retry = 0;
  98         while (l3_init(RFID_PROTOCOL_MIFARE_CLASSIC) < 0 && retry++ < 10) ;
  99
 100         printf("Mifare card available\n");
 101 }
 102
 103 int main(int argc, char **argv)
 104 {
 105         int len, rc, c, option_index = 0;
 106         unsigned int page,uid,uid_len;
 107         char key[MIFARE_CL_KEY_LEN];
 108         char key2[MIFARE_CL_KEY_LEN];
 109         char buf[MIFARE_CL_PAGE_SIZE];
 110
 111 #ifdef  __MINGW32__
 112         program_name = argv[0];
 113 #else
 114         program_name = basename(argv[0]);
 115 #endif/*__MINGW32__*/
 116
 117         memcpy(key, MIFARE_CL_KEYA_DEFAULT_INFINEON, MIFARE_CL_KEY_LEN);
 118
 119         printf("%s - (C) 2006 by Harald Welte\n"
 120                "This program is Free Software and has "
 121                "ABSOLUTELY NO WARRANTY\n\n", program_name);
 122
 123         printf("initializing librfid\n");
 124         rfid_init();
 125
 126         if (reader_init() < 0) {
 127                 fprintf(stderr, "error opening reader\n");
 128                 exit(1);
 129         }
 130
 131         while (1) {
 132                 c = getopt_long(argc, argv, "k:r:s:l:w:b:h", mifare_opts,
 133                                 &option_index);
 134                 if (c == -1)
 135                         break;
 136
 137                 switch (c) {
 138                         int i;
 139                 case 'b':
 140                         page = atoi(optarg);
 141                         printf("key: %s\n", hexdump(key, MIFARE_CL_KEY_LEN));
 142                         len = MIFARE_CL_PAGE_SIZE;
 143                         mifare_l3();
 144                         for (i = 0; i <= 0xff; i++) {
 145                                 key[MIFARE_CL_KEY_LEN-1]=i;
 146                                 if (mifare_cl_auth(key, page) >= 0)
 147                                         printf("KEY: %s\n",hexdump(key, MIFARE_CL_KEY_LEN));
 148                         }
 149
 150                         break;
 151                 case 'k':
 152                         hexread(key, optarg, strlen(optarg));
 153                         printf("key: %s\n", hexdump(key, MIFARE_CL_KEY_LEN));
 154                         break;
 155                 case 'r':
 156                         page = atoi(optarg);
 157                         printf("read(key='%s',page=%u):",
 158                                 hexdump(key, MIFARE_CL_KEY_LEN), page);
 159                         len = MIFARE_CL_PAGE_SIZE;
 160                         mifare_l3();
 161                         if (mifare_cl_auth(key, page) < 0)
 162                                 exit(1);
 163
 164                         uid_len=sizeof(uid);
 165                         uid=0;
 166                         if(rfid_layer2_getopt(l2h,RFID_OPT_LAYER2_UID,&uid,&uid_len)>=0)
 167                             printf("UID=%08X (len=%u)\n",uid,uid_len);
 168
 169                         len=MIFARE_CL_PAGE_SIZE;
 170                         rc = rfid_protocol_read(ph, page, buf, &len);
 171                         if (rc < 0) {
 172                                 printf("\n");
 173                                 fprintf(stderr, "error during read\n");
 174                                 break;
 175                         }
 176                         printf("len=%u data=%s\n", len, hexdump(buf, len));
 177
 178                         if (page & 0x3 == 0x3) {
 179                                 struct mfcl_access_sect s;
 180                                 struct mfcl_access_exp_sect es;
 181                                 int b;
 182                                 u_int8_t recreated[4];
 183                                 mfcl_parse_access(&s, buf+6);
 184                                 printf("access b0:%u b1:%u b2:%u b3:%u\n",
 185                                         s.block[0], s.block[1],
 186                                         s.block[2], s.block[3]);
 187                                 mfcl_access_to_exp(&es, &s);
 188                                 for (b = 0; b < 3; b++)
 189                                         printf("%u: %s\n", b, mfcl_access_exp_stringify(&es.block[b]));
 190                                 printf("3: %s\n", mfcl_access_exp_acc_stringify(&es.acc));
 191 #if 0
 192                                 mfcl_compile_access(recreated, &s);
 193                                 printf("recreated; %s\n", hexdump(recreated,4));
 194 #endif
 195                         }
 196                         break;
 197                 case 's':
 198                         hexread(key2, optarg, strlen(optarg));
 199                         printf("key2: %s\n", hexdump(key2, MIFARE_CL_KEY_LEN));
 200                         len = MIFARE_CL_PAGE_SIZE;
 201                         mifare_l3();
 202                         for(page = 0; page < 8; page++) {
 203                                 if (mifare_cl_auth( page < 4 ? key : key2, page) < 0)
 204                                         exit(1);
 205
 206                                 if ( page == 0 ) {
 207                                         uid_len=sizeof(uid);
 208                                         uid=0;
 209                                         if(rfid_layer2_getopt(l2h,RFID_OPT_LAYER2_UID,&uid,&uid_len)>=0)
 210                                                 printf("UID=%08X (len=%u)\n",uid,uid_len);
 211                                 }
 212
 213                                 len=MIFARE_CL_PAGE_SIZE;
 214                                 rc = rfid_protocol_read(ph, page, buf, &len);
 215                                 if (rc < 0) {
 216                                         printf("\n");
 217                                         fprintf(stderr, "error during read\n");
 218                                         break;
 219                                 }
 220                                 printf("page=%d len=%u data=%s\n", page, len, hexdump(buf, len));
 221                         }
 222                         break;
 223                 case 'l':
 224                         page = atoi(optarg);
 225                         printf("read_loop(key='%s',page=%u):\n",
 226                                 hexdump(key, MIFARE_CL_KEY_LEN), page);
 227                         while (1) {
 228                                 mifare_l3();
 229                                 if (mifare_cl_auth(key, page) < 0)
 230                                         continue;
 231
 232                                 uid_len=sizeof(uid);
 233                                 uid=0;
 234                                 if(rfid_layer2_getopt(l2h,RFID_OPT_LAYER2_UID,&uid,&uid_len)>=0)
 235                                     printf("UID=%08X (len=%u)\n",uid,uid_len);
 236
 237                                 len=MIFARE_CL_PAGE_SIZE;
 238                                 rc = rfid_protocol_read(ph, page, buf, &len);
 239                                 if (rc < 0) {
 240                                         printf("\n");
 241                                         fprintf(stderr, "error during read\n");
 242                                         continue;
 243                                 }
 244                                 printf("%s\n", hexdump(buf, len));
 245                         }
 246                         break;
 247                 case 'w':
 248                         page = atoi(optarg);
 249                         len = strlen(argv[optind]);
 250                         len = hexread(buf, argv[optind], len);
 251                         printf("write(key='%s',page=%u):",
 252                                 hexdump(key, MIFARE_CL_KEY_LEN), page);
 253                         printf(" '%s'(%u):", hexdump(buf, len), len);
 254                         mifare_l3();
 255                         if (mifare_cl_auth(key, page) < 0)
 256                                 exit(1);
 257                         rc = rfid_protocol_write(ph, page, buf, len);
 258                         if (rc < 0) {
 259                                 printf("\n");
 260                                 fprintf(stderr, "error during write\n");
 261                                 break;
 262                         }
 263                         printf("success\n");
 264                         break;
 265                 case 'h':
 266                 default:
 267                         help();
 268                 }
 269         }
 270
 271 #if 0
 272         rfid_protocol_close(ph);
 273         rfid_protocol_fini(ph);
 274
 275         rfid_layer2_close(l2h);
 276         rfid_layer2_fini(l2h);
 277 #endif
 278         rfid_reader_close(rh);
 279         exit(0);
 280 }
 281