553 lines
12 KiB
C
553 lines
12 KiB
C
/* librfid-tool - a small command-line tool for librfid testing
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*
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* (C) 2005-2006 by Harald Welte <laforge@gnumonks.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2
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* as published by the Free Software Foundation
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <stdio.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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/*#include <libgen.h>*/
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#define _GNU_SOURCE
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#include <getopt.h>
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#include <librfid/rfid.h>
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#include <librfid/rfid_scan.h>
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#include <librfid/rfid_reader.h>
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#include <librfid/rfid_layer2.h>
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#include <librfid/rfid_protocol.h>
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#include <librfid/rfid_protocol_mifare_classic.h>
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#include <librfid/rfid_protocol_mifare_ul.h>
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#include "librfid-tool.h"
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static int select_mf(void)
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{
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unsigned char cmd[] = { 0x00, 0xa4, 0x00, 0x00, 0x02, 0x3f, 0x00, 0x00 };
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unsigned char ret[256];
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unsigned int rlen = sizeof(ret);
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int rv;
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rv = rfid_protocol_transceive(ph, cmd, sizeof(cmd), ret, &rlen, 0, 0);
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if (rv < 0)
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return rv;
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printf("%d: [%s]\n", rlen, hexdump(ret, rlen));
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return 0;
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}
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static int iso7816_get_challenge(unsigned char len)
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{
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unsigned char cmd[] = { 0x00, 0x84, 0x00, 0x00, 0x08 };
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unsigned char ret[256];
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unsigned int rlen = sizeof(ret);
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cmd[4] = len;
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int rv;
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rv = rfid_protocol_transceive(ph, cmd, sizeof(cmd), ret, &rlen, 0, 0);
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if (rv < 0)
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return rv;
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printf("%d: [%s]\n", rlen, hexdump(ret, rlen));
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return 0;
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}
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int
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iso7816_select_application(void)
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{
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unsigned char cmd[] = { 0x00, 0xa4, 0x04, 0x0c, 0x07,
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0xa0, 0x00, 0x00, 0x02, 0x47, 0x10, 0x01 };
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unsigned char resp[7];
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unsigned int rlen = sizeof(resp);
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int rv;
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rv = rfid_protocol_transceive(ph, cmd, sizeof(cmd), resp, &rlen, 0, 0);
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if (rv < 0)
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return rv;
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/* FIXME: parse response */
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printf("%s\n", hexdump(resp, rlen));
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return 0;
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}
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int
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iso7816_select_ef(u_int16_t fid)
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{
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unsigned char cmd[7] = { 0x00, 0xa4, 0x02, 0x0c, 0x02, 0x00, 0x00 };
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unsigned char resp[7];
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unsigned int rlen = sizeof(resp);
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int rv;
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cmd[5] = (fid >> 8) & 0xff;
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cmd[6] = fid & 0xff;
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rv = rfid_protocol_transceive(ph, cmd, sizeof(cmd), resp, &rlen, 0, 0);
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if (rv < 0)
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return rv;
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/* FIXME: parse response */
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printf("%s\n", hexdump(resp, rlen));
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return 0;
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}
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int
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iso7816_read_binary(unsigned char *buf, unsigned int *len)
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{
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unsigned char cmd[] = { 0x00, 0xb0, 0x00, 0x00, 0x00 };
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unsigned char resp[256];
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unsigned int rlen = sizeof(resp);
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int rv;
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rv = rfid_protocol_transceive(ph, cmd, sizeof(cmd), resp, &rlen, 0, 0);
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if (rv < 0)
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return rv;
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printf("%s\n", hexdump(resp, rlen));
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/* FIXME: parse response, determine whether we need additional reads */
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/* FIXME: copy 'len' number of response bytes to 'buf' */
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return 0;
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}
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/* wrapper function around SELECT EF and READ BINARY */
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int
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iso7816_read_ef(u_int16_t fid, unsigned char *buf, unsigned int *len)
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{
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int rv;
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rv = iso7816_select_ef(fid);
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if (rv < 0)
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return rv;
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return iso7816_read_binary(buf, len);
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}
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/* mifare ultralight helpers */
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int
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mifare_ulight_write(struct rfid_protocol_handle *ph)
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{
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unsigned char buf[4] = { 0xa1, 0xa2, 0xa3, 0xa4 };
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return rfid_protocol_write(ph, 10, buf, 4);
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}
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int
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mifare_ulight_blank(struct rfid_protocol_handle *ph)
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{
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unsigned char buf[4] = { 0x00, 0x00, 0x00, 0x00 };
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int i, ret;
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for (i = 4; i <= MIFARE_UL_PAGE_MAX; i++) {
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ret = rfid_protocol_write(ph, i, buf, 4);
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if (ret < 0)
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return ret;
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}
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return 0;
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}
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static int
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mifare_ulight_read(struct rfid_protocol_handle *ph)
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{
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unsigned char buf[20];
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unsigned int len = sizeof(buf);
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int ret;
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int i;
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for (i = 0; i <= MIFARE_UL_PAGE_MAX; i++) {
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ret = rfid_protocol_read(ph, i, buf, &len);
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if (ret < 0)
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return ret;
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printf("Page 0x%x: %s\n", i, hexdump(buf, 4));
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}
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return 0;
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}
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/* mifare classic helpers */
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static int
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mifare_classic_read_sector(struct rfid_protocol_handle *ph, int sector)
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{
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unsigned char buf[20];
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unsigned int len = sizeof(buf);
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int ret;
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int block;
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/* FIXME: make this work for sectors > 31 */
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printf("Reading sector %u\n", sector);
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for (block = sector*4; block < sector*4+4; block++) {
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printf("Reading block %u: ", block);
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ret = rfid_protocol_read(ph, block, buf, &len);
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if(ret == -ETIMEDOUT)
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fprintf(stderr, "TIMEOUT\n");
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if (ret < 0) {
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printf("Error %d reading\n", ret);
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return ret;
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}
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printf("Page 0x%x: %s\n", block, hexdump(buf, len));
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}
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return 0;
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}
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static char *proto_names[] = {
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[RFID_PROTOCOL_TCL] = "tcl",
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[RFID_PROTOCOL_MIFARE_UL] = "mifare-ultralight",
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[RFID_PROTOCOL_MIFARE_CLASSIC] = "mifare-classic",
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};
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static int proto_by_name(const char *name)
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{
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int i;
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for (i = 0; i < ARRAY_SIZE(proto_names); i++) {
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if (proto_names[i] == NULL)
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continue;
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if (!strcasecmp(name, proto_names[i]))
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return i;
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}
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return -1;
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}
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static char *l2_names[] = {
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[RFID_LAYER2_ISO14443A] = "iso14443a",
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[RFID_LAYER2_ISO14443B] = "iso14443b",
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[RFID_LAYER2_ISO15693] = "iso15693",
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};
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static int l2_by_name(const char *name)
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{
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int i;
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for (i = 0; i < ARRAY_SIZE(l2_names); i++) {
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if (l2_names[i] == NULL)
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continue;
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if (!strcasecmp(name, l2_names[i]))
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return i;
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}
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return -1;
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}
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static void do_scan(void)
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{
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int rc;
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unsigned int size;
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unsigned int size_len = sizeof(size);
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printf("scanning for RFID token...\n");
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rc = rfid_scan(rh, &l2h, &ph);
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if (rc >= 2) {
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unsigned char uid_buf[16];
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unsigned int uid_len = sizeof(uid_buf);
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rfid_layer2_getopt(l2h, RFID_OPT_LAYER2_UID, &uid_buf,
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&uid_len);
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printf("Layer 2 success (%s): %s\n", rfid_layer2_name(l2h),
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hexdump(uid_buf, uid_len));
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}
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if (rc >= 3) {
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printf("Protocol success (%s)\n", rfid_protocol_name(ph));
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if (rfid_protocol_getopt(ph, RFID_OPT_PROTO_SIZE,
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&size, &size_len) == 0)
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printf("Size: %u bytes\n", size);
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}
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}
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#define OPTION_OFFSET 256
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static struct option original_opts[] = {
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{ "help", 0, 0, 'h' },
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{ "layer2", 1, 0, 'l' },
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{ "protocol", 1, 0, 'p' },
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{ "scan", 0, 0, 's' },
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{ "scan-loop", 0, 0, 'S' },
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{0, 0, 0, 0}
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};
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/* module / option merging code */
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static struct option *opts = original_opts;
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static unsigned int global_option_offset = 0;
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static char *program_name;
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static char *program_version = LIBRFID_TOOL_VERSION;
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static void free_opts(int reset_offset)
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{
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if (opts != original_opts) {
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free(opts);
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opts = original_opts;
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if (reset_offset)
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global_option_offset = 0;
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}
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}
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static struct option *
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merge_options(struct option *oldopts, const struct option *newopts,
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unsigned int *option_offset)
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{
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unsigned int num_old, num_new, i;
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struct option *merge;
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for (num_old = 0; oldopts[num_old].name; num_old++);
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for (num_new = 0; oldopts[num_new].name; num_new++);
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global_option_offset += OPTION_OFFSET;
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*option_offset = global_option_offset;
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merge = malloc(sizeof(struct option) * (num_new + num_old + 1));
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memcpy(merge, oldopts, num_old * sizeof(struct option));
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free_opts(0); /* Release previous options merged if any */
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for (i = 0; i < num_new; i++) {
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merge[num_old + i] = newopts[i];
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merge[num_old + i].val += *option_offset;
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}
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memset(merge + num_old + num_new, 0, sizeof(struct option));
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return merge;
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}
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struct rfidtool_module *find_module(const char *name)
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{
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return NULL;
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}
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void register_module(struct rfidtool_module *me)
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{
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struct rfidtool_module *old;
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if (strcmp(me->version, program_version) != 0) {
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fprintf(stderr, "%s: target `%s' v%s (I'm v%s).\n",
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program_name, me->name, me->version, program_version);
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exit(1);
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}
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old = find_module(me->name);
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if (old) {
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fprintf(stderr, "%s: target `%s' already registered.\n",
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program_name, me->name);
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exit(1);
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}
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}
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static void help(void)
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{
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printf( " -s --scan scan until first RFID tag is found\n"
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" -S --scan-loop endless scanning loop\n"
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" -p --protocol {tcl,mifare-ultralight,mifare-classic}\n"
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" -l --layer2 {iso14443a,iso14443b,iso15693}\n"
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" -h --help\n");
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}
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int main(int argc, char **argv)
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{
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int rc;
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char buf[0x100];
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int i, len, protocol = -1, layer2 = -1;
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#ifdef __MINGW32__
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program_name = argv[0];
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#else /*__MINGW32__*/
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program_name = basename(argv[0]);
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#endif/*__MINGW32__*/
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printf("%s - (C) 2006 by Harald Welte\n"
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"This program is Free Software and has "
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"ABSOLUTELY NO WARRANTY\n\n", program_name);
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printf("initializing librfid\n");
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rfid_init();
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while (1) {
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int c, option_index = 0;
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c = getopt_long(argc, argv, "hp:l:sS", opts, &option_index);
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if (c == -1)
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break;
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switch (c) {
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case 's':
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if (reader_init() < 0)
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exit(1);
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do_scan();
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exit(0);
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break;
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case 'S':
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if (reader_init() < 0)
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exit(1);
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while (1)
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do_scan();
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exit(0);
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break;
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case 'p':
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protocol = proto_by_name(optarg);
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if (protocol < 0) {
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fprintf(stderr, "unknown protocol `%s'\n",
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optarg);
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exit(2);
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}
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break;
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case 'l':
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layer2 = l2_by_name(optarg);
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if (layer2 < 0) {
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fprintf(stderr, "unknown layer2 `%s'\n",
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optarg);
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exit(2);
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}
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break;
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case 'h':
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help();
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exit(0);
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break;
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}
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}
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switch (protocol) {
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case RFID_PROTOCOL_MIFARE_UL:
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case RFID_PROTOCOL_MIFARE_CLASSIC:
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layer2 = RFID_LAYER2_ISO14443A;
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break;
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case -1:
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fprintf(stderr, "you have to specify --protocol\n");
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exit(2);
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}
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if (layer2 < 0) {
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fprintf(stderr, "you have to specify --layer2\n");
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exit(2);
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}
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if (reader_init() < 0)
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exit(1);
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if (l2_init(layer2) < 0)
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exit(1);
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if (l3_init(protocol) < 0)
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exit(1);
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switch (protocol) {
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case RFID_PROTOCOL_TCL:
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printf("Protocol T=CL\n");
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/* we've established T=CL at this point */
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printf("selecting Master File\n");
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rc = select_mf();
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if (rc < 0) {
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printf("error selecting MF\n");
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break;
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}
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printf("Getting random challenge, length 255\n");
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rc = iso7816_get_challenge(0xff);
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if (rc < 0) {
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printf("error getting random challenge\n");
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break;
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}
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printf("selecting Passport application\n");
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rc = iso7816_select_application();
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if (rc < 0) {
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printf("error selecting passport application\n");
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break;
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}
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printf("selecting EF 0x1e\n");
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rc = iso7816_select_ef(0x011e);
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if (rc < 0) {
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printf("error selecting EF 0x1e\n");
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break;
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}
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printf("selecting EF 0x01\n");
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rc = iso7816_select_ef(0x0101);
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if (rc < 0) {
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printf("error selecting EF 0x01\n");
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break;
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}
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while (1) {
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printf("reading EF1\n");
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len = sizeof(buf);
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printf("reading ef\n");
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rc = iso7816_read_binary(buf, &len);
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if (rc < 0) {
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printf("error reading EF\n");
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break;
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}
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}
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#if 0
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for (i = 0; i < 4; i++)
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iso7816_get_challenge(0xff);
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#endif
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break;
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case RFID_PROTOCOL_MIFARE_UL:
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printf("Protocol Mifare Ultralight\n");
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mifare_ulight_read(ph);
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#if 0
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mifare_ulight_blank(ph);
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mifare_ulight_write(ph);
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mifare_ulight_read(ph);
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#endif
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break;
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case RFID_PROTOCOL_MIFARE_CLASSIC:
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printf("Protocol Mifare Classic\n");
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{
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int sector;
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for (sector = 0; sector < 31; sector++) {
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printf("Authenticating sector %u: ", sector);
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fflush(stdout);
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rc = mfcl_set_key(ph, MIFARE_CL_KEYA_DEFAULT_INFINEON);
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if (rc < 0) {
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printf("key format error\n");
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exit(1);
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}
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rc = mfcl_auth(ph, RFID_CMD_MIFARE_AUTH1A, sector*4);
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if (rc < 0) {
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printf("mifare auth error\n");
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exit(1);
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} else
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printf("mifare auth succeeded!\n");
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mifare_classic_read_sector(ph, sector);
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}
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}
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break;
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default:
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printf("unknown protocol\n");
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exit(1);
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break;
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}
|
|
|
|
rfid_reader_close(rh);
|
|
|
|
exit(0);
|
|
}
|