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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  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                 " -w    --write         Write a mifare sector\n"
  53                 " -k    --key           Specify mifare access key (in hex tuples)\n");
  54 }
  55
  56 static struct option mifare_opts[] = {
  57         { "key", 1, 0, 'k' },
  58         { "read", 1, 0, 'r' },
  59         { "loop-read", 1, 0, 'l' },
  60         { "write", 1 ,0, 'w' },
  61         { "help", 0, 0, 'h' },
  62         { 0, 0, 0, 0 }
  63 };
  64
  65 static int mifare_cl_auth(unsigned char *key, int page)
  66 {
  67         int rc;
  68
  69         rc = mfcl_set_key(ph, key);
  70         if (rc < 0) {
  71                 fprintf(stderr, "key format error\n");
  72                 return rc;
  73         }
  74         rc = mfcl_auth(ph, RFID_CMD_MIFARE_AUTH1A, page);
  75         if (rc < 0) {
  76                 fprintf(stderr, "mifare auth error\n");
  77                 return rc;
  78         } else
  79                 printf("mifare auth succeeded!\n");
  80
  81         return 0;
  82 }
  83
  84 static void mifare_l3(void)
  85 {
  86         while (l2_init(RFID_LAYER2_ISO14443A) < 0) ;
  87
  88         printf("ISO14443-3A anticollision succeeded\n");
  89
  90         while (l3_init(RFID_PROTOCOL_MIFARE_CLASSIC) < 0) ;
  91
  92         printf("Mifare card available\n");
  93 }
  94
  95 int main(int argc, char **argv)
  96 {
  97         int len, rc, c, option_index = 0;
  98         unsigned int page,uid,uid_len;
  99         char key[MIFARE_CL_KEY_LEN];
 100         char buf[MIFARE_CL_PAGE_SIZE];
 101
 102 #ifdef  __MINGW32__
 103         program_name = argv[0];
 104 #else
 105         program_name = basename(argv[0]);
 106 #endif/*__MINGW32__*/
 107
 108         memcpy(key, MIFARE_CL_KEYA_DEFAULT_INFINEON, MIFARE_CL_KEY_LEN);
 109
 110         printf("%s - (C) 2006 by Harald Welte\n"
 111                "This program is Free Software and has "
 112                "ABSOLUTELY NO WARRANTY\n\n", program_name);
 113
 114         printf("initializing librfid\n");
 115         rfid_init();
 116
 117         if (reader_init() < 0) {
 118                 fprintf(stderr, "error opening reader\n");
 119                 exit(1);
 120         }
 121
 122         while (1) {
 123                 c = getopt_long(argc, argv, "k:r:l:w:", mifare_opts,
 124                                 &option_index);
 125                 if (c == -1)
 126                         break;
 127
 128                 switch (c) {
 129                 case 'k':
 130                         hexread(key, optarg, strlen(optarg));
 131                         printf("key: %s\n", hexdump(key, MIFARE_CL_KEY_LEN));
 132                         break;
 133                 case 'r':
 134                         page = atoi(optarg);
 135                         printf("read(key='%s',page=%u):",
 136                                 hexdump(key, MIFARE_CL_KEY_LEN), page);
 137                         len = MIFARE_CL_PAGE_SIZE;
 138                         mifare_l3();
 139                         if (mifare_cl_auth(key, page) < 0)
 140                                 exit(1);
 141
 142                         uid_len=sizeof(uid);
 143                         uid=0;
 144                         if(rfid_layer2_getopt(l2h,RFID_OPT_LAYER2_UID,&uid,&uid_len)>=0)
 145                             printf("UID=%08X (len=%u)\n",uid,uid_len);
 146
 147                         len=MIFARE_CL_PAGE_SIZE;
 148                         rc = rfid_protocol_read(ph, page, buf, &len);
 149                         if (rc < 0) {
 150                                 printf("\n");
 151                                 fprintf(stderr, "error during read\n");
 152                                 break;
 153                         }
 154                         printf("len=%u data=%s\n", len, hexdump(buf, len));
 155
 156                         if (page & 0x3 == 0x3) {
 157                                 struct mfcl_access_sect s;
 158                                 struct mfcl_access_exp_sect es;
 159                                 int b;
 160                                 u_int8_t recreated[4];
 161                                 mfcl_parse_access(&s, buf+6);
 162                                 printf("access b0:%u b1:%u b2:%u b3:%u\n",
 163                                         s.block[0], s.block[1],
 164                                         s.block[2], s.block[3]);
 165                                 mfcl_access_to_exp(&es, &s);
 166                                 for (b = 0; b < 3; b++)
 167                                         printf("%u: %s\n", b, mfcl_access_exp_stringify(&es.block[b]));
 168                                 printf("3: %s\n", mfcl_access_exp_acc_stringify(&es.acc));
 169 #if 0
 170                                 mfcl_compile_access(recreated, &s);
 171                                 printf("recreated; %s\n", hexdump(recreated,4));
 172 #endif
 173                         }
 174                         break;
 175                 case 'l':
 176                         page = atoi(optarg);
 177                         printf("read_loop(key='%s',page=%u):\n",
 178                                 hexdump(key, MIFARE_CL_KEY_LEN), page);
 179                         while (1) {
 180                                 mifare_l3();
 181                                 if (mifare_cl_auth(key, page) < 0)
 182                                         continue;
 183
 184                                 uid_len=sizeof(uid);
 185                                 uid=0;
 186                                 if(rfid_layer2_getopt(l2h,RFID_OPT_LAYER2_UID,&uid,&uid_len)>=0)
 187                                     printf("UID=%08X (len=%u)\n",uid,uid_len);
 188
 189                                 len=MIFARE_CL_PAGE_SIZE;
 190                                 rc = rfid_protocol_read(ph, page, buf, &len);
 191                                 if (rc < 0) {
 192                                         printf("\n");
 193                                         fprintf(stderr, "error during read\n");
 194                                         continue;
 195                                 }
 196                                 printf("%s\n", hexdump(buf, len));
 197                         }
 198                         break;
 199                 case 'w':
 200                         page = atoi(optarg);
 201                         len = strlen(argv[optind]);
 202                         len = hexread(buf, argv[optind], len);
 203                         printf("write(key='%s',page=%u):",
 204                                 hexdump(key, MIFARE_CL_KEY_LEN), page);
 205                         printf(" '%s'(%u):", hexdump(buf, len), len);
 206                         mifare_l3();
 207                         if (mifare_cl_auth(key, page) < 0)
 208                                 exit(1);
 209                         rc = rfid_protocol_write(ph, page, buf, len);
 210                         if (rc < 0) {
 211                                 printf("\n");
 212                                 fprintf(stderr, "error during write\n");
 213                                 break;
 214                         }
 215                         printf("success\n");
 216                         break;
 217                 case 'h':
 218                 default:
 219                         help();
 220                 }
 221         }
 222
 223 #if 0
 224         rfid_protocol_close(ph);
 225         rfid_protocol_fini(ph);
 226
 227         rfid_layer2_close(l2h);
 228         rfid_layer2_fini(l2h);
 229 #endif
 230         rfid_reader_close(rh);
 231         exit(0);
 232 }
 233