F-05DのLSM解除用モジュールのソースコード(シンボル名検索)

/*
 *  Copyright (c) 2012 goroh_kun
 */

/*
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 *
 * Should you need to contact me, the author, you can do so either by
 * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
 * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
 */

#include <linux/module.h>
#include <linux/init.h>
#include <linux/kallsyms.h>

MODULE_AUTHOR("goroh_kun <goroh.kun@gmail.com>");
MODULE_DESCRIPTION("security module disabler");
MODULE_LICENSE("GPL");

#define KSYM_NAME_LEN 128

static int __init reset_security_init(void)
{
    void (*reset_security_ops)(void) = (void*)0;

    reset_security_ops = (void*)kallsyms_lookup_name("reset_security_ops");
    printk("reset_security_ops = %p", reset_security_ops);
    if(0 == (unsigned int)reset_security_ops) {
        return -ENODEV;
    }
        reset_security_ops();
        return 0;
}

static void __exit reset_security_exit(void)
{
}

module_init(reset_security_init);
module_exit(reset_security_exit);