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if_tun.h revision 1.1 
      1 /*
      2  * Copyright (c) 1988, Julian Onions.
      3  *
      4  * This source may be freely distributed, however I would be interested
      5  * in any changes that are made.
      6  *
      7  * from: $Header: if_tnreg.h,v 1.1.2.1 1992/07/16 22:39:16 friedl Exp
      8  * $Id: if_tun.h,v 1.1 1993/11/14 20:07:23 deraadt Exp $
      9  */
     10 
     11 #ifndef _NET_IF_TUN_H_
     12 #define _NET_IF_TUN_H_
     13 
     14 struct tun_softc {
     15 	u_short	tun_flags;		/* misc flags */
     16 #define	TUN_OPEN	0x0001
     17 #define	TUN_INITED	0x0002
     18 #define	TUN_RCOLL	0x0004
     19 #define	TUN_IASET	0x0008
     20 #define	TUN_DSTADDR	0x0010
     21 #define	TUN_READY	0x0020
     22 #define	TUN_RWAIT	0x0040
     23 #define	TUN_ASYNC	0x0080
     24 #define	TUN_NBIO	0x0100
     25 	struct	ifnet tun_if;		/* the interface */
     26 	int	tun_pgrp;		/* the process group - if any */
     27 	struct	selinfo	tun_rsel;	/* read select */
     28 	struct	selinfo	tun_wsel;	/* write select (not used) */
     29 };
     30 
     31 /* Maximum packet size */
     32 #define	TUNMTU		0x1000
     33 
     34 /* ioctl's for get/set debug */
     35 #define	TUNSDEBUG	_IOW('t', 90, int)
     36 #define	TUNGDEBUG	_IOR('t', 89, int)
     37 
     38 #endif /* !_NET_IF_TUN_H_ */
     39