[linux.git] / include / linux / if_tun.h

/*
 *  Universal TUN/TAP device driver.
 *  Copyright (C) 1999-2000 Maxim Krasnyansky <[email protected]>
 *
 *  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 */
Commit	Line	Data
1da177e4 LT	1	/*
	2	* Universal TUN/TAP device driver.
	3	* Copyright (C) 1999-2000 Maxim Krasnyansky <[email protected]>
	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 as published by
	7	* the Free Software Foundation; either version 2 of the License, or
	8	* (at your option) any later version.
	9	*
	10	* This program is distributed in the hope that it will be useful,
	11	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	13	* GNU General Public License for more details.
1da177e4	14	*/
1da177e4 LT	15	#ifndef __IF_TUN_H
	16	#define __IF_TUN_H
	17
607ca46e	18	#include <uapi/linux/if_tun.h>
1da177e4	19
05c2828c MT	20	#if defined(CONFIG_TUN) \|\| defined(CONFIG_TUN_MODULE)
	21	struct socket tun_get_socket(struct file );
	22	#else
	23	#include <linux/err.h>
	24	#include <linux/errno.h>
	25	struct file;
	26	struct socket;
	27	static inline struct socket tun_get_socket(struct file f)
	28	{
	29	return ERR_PTR(-EINVAL);
	30	}
	31	#endif /* CONFIG_TUN */
1da177e4	32	#endif /* __IF_TUN_H */