/* * Universal TUN/TAP device driver. * Copyright (C) 1999-2000 Maxim Krasnyansky <max_mk@yahoo.com> * * 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. */ #ifndef __IF_TUN_H #define __IF_TUN_H #include <uapi/linux/if_tun.h> #if defined(CONFIG_TUN) || defined(CONFIG_TUN_MODULE) struct socket *tun_get_socket(struct file *); #else #include <linux/err.h> #include <linux/errno.h> struct file; struct socket; static inline struct socket *tun_get_socket(struct file *f) { return ERR_PTR(-EINVAL); } #endif /* CONFIG_TUN */ #endif /* __IF_TUN_H */
