mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-21 16:29:59 +00:00
![Linus Torvalds](/assets/img/avatar_default.png)
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
93 lines
2.1 KiB
C
93 lines
2.1 KiB
C
/*
|
|
* 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.
|
|
*
|
|
* $Id: if_tun.h,v 1.2 2001/06/01 18:39:47 davem Exp $
|
|
*/
|
|
|
|
#ifndef __IF_TUN_H
|
|
#define __IF_TUN_H
|
|
|
|
/* Uncomment to enable debugging */
|
|
/* #define TUN_DEBUG 1 */
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
#ifdef TUN_DEBUG
|
|
#define DBG if(tun->debug)printk
|
|
#define DBG1 if(debug==2)printk
|
|
#else
|
|
#define DBG( a... )
|
|
#define DBG1( a... )
|
|
#endif
|
|
|
|
struct tun_struct {
|
|
struct list_head list;
|
|
unsigned long flags;
|
|
int attached;
|
|
uid_t owner;
|
|
|
|
wait_queue_head_t read_wait;
|
|
struct sk_buff_head readq;
|
|
|
|
struct net_device *dev;
|
|
struct net_device_stats stats;
|
|
|
|
struct fasync_struct *fasync;
|
|
|
|
unsigned long if_flags;
|
|
u8 dev_addr[ETH_ALEN];
|
|
u32 chr_filter[2];
|
|
u32 net_filter[2];
|
|
|
|
#ifdef TUN_DEBUG
|
|
int debug;
|
|
#endif
|
|
};
|
|
|
|
#endif /* __KERNEL__ */
|
|
|
|
/* Read queue size */
|
|
#define TUN_READQ_SIZE 500
|
|
|
|
/* TUN device flags */
|
|
#define TUN_TUN_DEV 0x0001
|
|
#define TUN_TAP_DEV 0x0002
|
|
#define TUN_TYPE_MASK 0x000f
|
|
|
|
#define TUN_FASYNC 0x0010
|
|
#define TUN_NOCHECKSUM 0x0020
|
|
#define TUN_NO_PI 0x0040
|
|
#define TUN_ONE_QUEUE 0x0080
|
|
#define TUN_PERSIST 0x0100
|
|
|
|
/* Ioctl defines */
|
|
#define TUNSETNOCSUM _IOW('T', 200, int)
|
|
#define TUNSETDEBUG _IOW('T', 201, int)
|
|
#define TUNSETIFF _IOW('T', 202, int)
|
|
#define TUNSETPERSIST _IOW('T', 203, int)
|
|
#define TUNSETOWNER _IOW('T', 204, int)
|
|
|
|
/* TUNSETIFF ifr flags */
|
|
#define IFF_TUN 0x0001
|
|
#define IFF_TAP 0x0002
|
|
#define IFF_NO_PI 0x1000
|
|
#define IFF_ONE_QUEUE 0x2000
|
|
|
|
struct tun_pi {
|
|
unsigned short flags;
|
|
unsigned short proto;
|
|
};
|
|
#define TUN_PKT_STRIP 0x0001
|
|
|
|
#endif /* __IF_TUN_H */
|