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/* mifare-tool - a small command-line tool for librfid mifare testing
*
* (C) 2006 by Harald Welte <laforge@gnumonks.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#ifndef __MINGW32__
#include <libgen.h>
#endif
#define _GNU_SOURCE
#include <getopt.h>
#include <librfid/rfid.h>
#include <librfid/rfid_scan.h>
#include <librfid/rfid_reader.h>
#include <librfid/rfid_layer2.h>
#include <librfid/rfid_protocol.h>
#include <librfid/rfid_protocol_mifare_classic.h>
#include <librfid/rfid_protocol_mifare_ul.h>
#include <librfid/rfid_access_mifare_classic.h>
#include "librfid-tool.h"
static char *program_name;
static void help(void)
{
printf( " -h --help Print this help message\n"
" -r --read Read a mifare sector\n"
" -l --loop-read Loop reading a mifare sector\n"
" -w --write Write a mifare sector\n"
" -k --key Specify mifare access key (in hex tuples)\n"
" -b --brute-force n Brute Force read sector n\n");
}
static struct option mifare_opts[] = {
{ "key", 1, 0, 'k' },
{ "read", 1, 0, 'r' },
{ "loop-read", 1, 0, 'l' },
{ "write", 1 ,0, 'w' },
{ "help", 0, 0, 'h' },
{ "brute-force", 1, 0, 'b' },
{ 0, 0, 0, 0 }
};
static int mifare_cl_auth(unsigned char *key, int page)
{
int rc;
rc = mfcl_set_key(ph, key);
if (rc < 0) {
fprintf(stderr, "key format error\n");
return rc;
}
rc = mfcl_auth(ph, RFID_CMD_MIFARE_AUTH1A, page);
if (rc < 0) {
fprintf(stderr, "mifare auth error\n");
return rc;
} else
printf("mifare auth succeeded!\n");
return 0;
}
static void mifare_l3(void)
{
while (l2_init(RFID_LAYER2_ISO14443A) < 0) ;
printf("ISO14443-3A anticollision succeeded\n");
while (l3_init(RFID_PROTOCOL_MIFARE_CLASSIC) < 0) ;
printf("Mifare card available\n");
}
int main(int argc, char **argv)
{
int len, rc, c, option_index = 0;
unsigned int page,uid,uid_len;
char key[MIFARE_CL_KEY_LEN];
char buf[MIFARE_CL_PAGE_SIZE];
#ifdef __MINGW32__
program_name = argv[0];
#else
program_name = basename(argv[0]);
#endif/*__MINGW32__*/
memcpy(key, MIFARE_CL_KEYA_DEFAULT_INFINEON, MIFARE_CL_KEY_LEN);
printf("%s - (C) 2006 by Harald Welte\n"
"This program is Free Software and has "
"ABSOLUTELY NO WARRANTY\n\n", program_name);
printf("initializing librfid\n");
rfid_init();
if (reader_init() < 0) {
fprintf(stderr, "error opening reader\n");
exit(1);
}
while (1) {
c = getopt_long(argc, argv, "k:r:l:w:b:h", mifare_opts,
&option_index);
if (c == -1)
break;
switch (c) {
int i;
case 'b':
page = atoi(optarg);
printf("key: %s\n", hexdump(key, MIFARE_CL_KEY_LEN));
len = MIFARE_CL_PAGE_SIZE;
mifare_l3();
for (i = 0; i <= 0xff; i++) {
key[MIFARE_CL_KEY_LEN-1]=i;
if (mifare_cl_auth(key, page) >= 0)
printf("KEY: %s\n",hexdump(key, MIFARE_CL_KEY_LEN));
}
break;
case 'k':
hexread(key, optarg, strlen(optarg));
printf("key: %s\n", hexdump(key, MIFARE_CL_KEY_LEN));
break;
case 'r':
page = atoi(optarg);
printf("read(key='%s',page=%u):",
hexdump(key, MIFARE_CL_KEY_LEN), page);
len = MIFARE_CL_PAGE_SIZE;
mifare_l3();
if (mifare_cl_auth(key, page) < 0)
exit(1);
uid_len=sizeof(uid);
uid=0;
if(rfid_layer2_getopt(l2h,RFID_OPT_LAYER2_UID,&uid,&uid_len)>=0)
printf("UID=%08X (len=%u)\n",uid,uid_len);
len=MIFARE_CL_PAGE_SIZE;
rc = rfid_protocol_read(ph, page, buf, &len);
if (rc < 0) {
printf("\n");
fprintf(stderr, "error during read\n");
break;
}
printf("len=%u data=%s\n", len, hexdump(buf, len));
if (page & 0x3 == 0x3) {
struct mfcl_access_sect s;
struct mfcl_access_exp_sect es;
int b;
u_int8_t recreated[4];
mfcl_parse_access(&s, buf+6);
printf("access b0:%u b1:%u b2:%u b3:%u\n",
s.block[0], s.block[1],
s.block[2], s.block[3]);
mfcl_access_to_exp(&es, &s);
for (b = 0; b < 3; b++)
printf("%u: %s\n", b, mfcl_access_exp_stringify(&es.block[b]));
printf("3: %s\n", mfcl_access_exp_acc_stringify(&es.acc));
#if 0
mfcl_compile_access(recreated, &s);
printf("recreated; %s\n", hexdump(recreated,4));
#endif
}
break;
case 'l':
page = atoi(optarg);
printf("read_loop(key='%s',page=%u):\n",
hexdump(key, MIFARE_CL_KEY_LEN), page);
while (1) {
mifare_l3();
if (mifare_cl_auth(key, page) < 0)
continue;
uid_len=sizeof(uid);
uid=0;
if(rfid_layer2_getopt(l2h,RFID_OPT_LAYER2_UID,&uid,&uid_len)>=0)
printf("UID=%08X (len=%u)\n",uid,uid_len);
len=MIFARE_CL_PAGE_SIZE;
rc = rfid_protocol_read(ph, page, buf, &len);
if (rc < 0) {
printf("\n");
fprintf(stderr, "error during read\n");
continue;
}
printf("%s\n", hexdump(buf, len));
}
break;
case 'w':
page = atoi(optarg);
len = strlen(argv[optind]);
len = hexread(buf, argv[optind], len);
printf("write(key='%s',page=%u):",
hexdump(key, MIFARE_CL_KEY_LEN), page);
printf(" '%s'(%u):", hexdump(buf, len), len);
mifare_l3();
if (mifare_cl_auth(key, page) < 0)
exit(1);
rc = rfid_protocol_write(ph, page, buf, len);
if (rc < 0) {
printf("\n");
fprintf(stderr, "error during write\n");
break;
}
printf("success\n");
break;
case 'h':
default:
help();
}
}
#if 0
rfid_protocol_close(ph);
rfid_protocol_fini(ph);
rfid_layer2_close(l2h);
rfid_layer2_fini(l2h);
#endif
rfid_reader_close(rh);
exit(0);
}
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