From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: Linux-2.6.12-rc2 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! --- include/linux/if_tun.h | 93 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 93 insertions(+) create mode 100644 include/linux/if_tun.h (limited to 'include/linux/if_tun.h') diff --git a/include/linux/if_tun.h b/include/linux/if_tun.h new file mode 100644 index 000000000000..096a85a58ae5 --- /dev/null +++ b/include/linux/if_tun.h @@ -0,0 +1,93 @@ +/* + * Universal TUN/TAP device driver. + * Copyright (C) 1999-2000 Maxim Krasnyansky + * + * 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 */ -- cgit v1.2.3