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[/] [test_project/] [trunk/] [linux_sd_driver/] [include/] [linux/] [if_tun.h] - Blame information for rev 81

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Line No. Rev Author Line
1 62 marcus.erl
/*
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 *  Universal TUN/TAP device driver.
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 *  Copyright (C) 1999-2000 Maxim Krasnyansky <max_mk@yahoo.com>
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 *
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 *  This program is free software; you can redistribute it and/or modify
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 *  it under the terms of the GNU General Public License as published by
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 *  the Free Software Foundation; either version 2 of the License, or
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 *  (at your option) any later version.
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 *
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 *  This program is distributed in the hope that it will be useful,
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 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
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 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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 *  GNU General Public License for more details.
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 *
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 *  $Id: if_tun.h,v 1.2 2001/06/01 18:39:47 davem Exp $
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 */
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#ifndef __IF_TUN_H
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#define __IF_TUN_H
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/* Uncomment to enable debugging */
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/* #define TUN_DEBUG 1 */
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#ifdef __KERNEL__
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#ifdef TUN_DEBUG
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#define DBG  if(tun->debug)printk
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#define DBG1 if(debug==2)printk
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#else
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#define DBG( a... )
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#define DBG1( a... )
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#endif
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struct tun_struct {
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        struct list_head        list;
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        unsigned long           flags;
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        int                     attached;
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        uid_t                   owner;
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        gid_t                   group;
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        wait_queue_head_t       read_wait;
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        struct sk_buff_head     readq;
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        struct net_device       *dev;
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        struct fasync_struct    *fasync;
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        unsigned long if_flags;
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        u8 dev_addr[ETH_ALEN];
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        u32 chr_filter[2];
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        u32 net_filter[2];
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#ifdef TUN_DEBUG        
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        int debug;
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#endif  
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};
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#endif /* __KERNEL__ */
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/* Read queue size */
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#define TUN_READQ_SIZE  500
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/* TUN device flags */
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#define TUN_TUN_DEV     0x0001  
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#define TUN_TAP_DEV     0x0002
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#define TUN_TYPE_MASK   0x000f
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#define TUN_FASYNC      0x0010
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#define TUN_NOCHECKSUM  0x0020
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#define TUN_NO_PI       0x0040
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#define TUN_ONE_QUEUE   0x0080
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#define TUN_PERSIST     0x0100  
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/* Ioctl defines */
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#define TUNSETNOCSUM  _IOW('T', 200, int) 
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#define TUNSETDEBUG   _IOW('T', 201, int) 
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#define TUNSETIFF     _IOW('T', 202, int) 
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#define TUNSETPERSIST _IOW('T', 203, int) 
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#define TUNSETOWNER   _IOW('T', 204, int)
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#define TUNSETLINK    _IOW('T', 205, int)
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#define TUNSETGROUP   _IOW('T', 206, int)
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/* TUNSETIFF ifr flags */
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#define IFF_TUN         0x0001
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#define IFF_TAP         0x0002
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#define IFF_NO_PI       0x1000
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#define IFF_ONE_QUEUE   0x2000
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struct tun_pi {
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        unsigned short flags;
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        unsigned short proto;
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};
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#define TUN_PKT_STRIP   0x0001
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#endif /* __IF_TUN_H */

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