sys/net/tun/if_tunvar.h

   1 /*-
   2  * Copyright (c) 1998 Brian Somers <brian@Awfulhak.org>
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  *
  26  * $FreeBSD: src/sys/net/if_tunvar.h,v 1.7 2000/01/23 01:47:12 brian Exp $
  27  * $DragonFly: src/sys/net/tun/if_tunvar.h,v 1.3 2007/12/31 04:58:54 sephe Exp $
  28  */
  29
  30 #ifndef _NET_IF_TUNVAR_H_
  31 #define _NET_IF_TUNVAR_H_
  32
  33 struct tun_softc {
  34         u_short tun_flags;              /* misc flags */
  35 #define TUN_OPEN        0x0001
  36 #define TUN_INITED      0x0002
  37 #define TUN_RCOLL       0x0004
  38 #define TUN_IASET       0x0008
  39 #define TUN_DSTADDR     0x0010          /* unused */
  40 #define TUN_LMODE       0x0020
  41 #define TUN_RWAIT       0x0040
  42 #define TUN_ASYNC       0x0080
  43 #define TUN_IFHEAD      0x0100
  44
  45 #define TUN_READY       (TUN_OPEN | TUN_INITED)
  46
  47         pid_t   tun_pid;                /* PID of process to open */
  48         struct  ifnet tun_if;           /* the interface */
  49         struct  sigio *tun_sigio;       /* information for async I/O */
  50         struct  kqinfo  tun_rkq;        /* read select/poll/kq */
  51         struct  kqinfo  tun_wkq;        /* write select/poll/kq (not used) */
  52 };
  53
  54 #endif /* !_NET_IF_TUNVAR_H_ */