/* #ifndef lintstatic	char	*sccsid = "@(#)interface.h	4.1	(ULTRIX)	7/2/90";#endif lint*//************************************************************************ *									* *			Copyright (c) 1984,1988 by			* *		Digital Equipment Corporation, Maynard, MA		* *			All rights reserved.				* *									* *   This software is furnished under a license and may be used and	* *   copied  only  in accordance with the terms of such license and	* *   with the  inclusion  of  the  above  copyright  notice.   This	* *   software  or  any  other copies thereof may not be provided or	* *   otherwise made available to any other person.  No title to and	* *   ownership of the software is hereby transferred.			* *									* *   This software is  derived  from  software  received  from  the	* *   University    of   California,   Berkeley,   and   from   Bell	* *   Laboratories.  Use, duplication, or disclosure is  subject  to	* *   restrictions  under  license  agreements  with  University  of	* *   California and with AT&T.						* *									* *   The information in this software is subject to change  without	* *   notice  and should not be construed as a commitment by Digital	* *   Equipment Corporation.						* *									* *   Digital assumes no responsibility for the use  or  reliability	* *   of its software on equipment which is not supplied by Digital.	* *									* ************************************************************************//* * Copyright (c) 1983 Regents of the University of California. * All rights reserved.  The Berkeley software License Agreement * specifies the terms and conditions for redistribution. * *	interface.h	5.3 (Berkeley) 4/20/86 *//* * Routing table management daemon. *//* * An ``interface'' is similar to an ifnet structure, * except it doesn't contain q'ing info, and it also * handles ``logical'' interfaces (remote gateways * that we want to keep polling even if they go down). * The list of interfaces which we maintain is used * in supplying the gratuitous routing table updates. */struct interface {	struct	interface *int_next;	struct	sockaddr int_addr;		/* address on this host */	union {		struct	sockaddr intu_broadaddr;		struct	sockaddr intu_dstaddr;	} int_intu;#define	int_broadaddr	int_intu.intu_broadaddr	/* broadcast address */#define	int_dstaddr	int_intu.intu_dstaddr	/* other end of p-to-p link */	int	int_metric;			/* init's routing entry */	int	int_flags;			/* see below */	/* START INTERNET SPECIFIC */	u_long	int_net;			/* network # */	u_long	int_netmask;			/* net mask for addr */	u_long	int_subnet;			/* subnet # */	u_long	int_subnetmask;			/* subnet mask for addr */	/* END INTERNET SPECIFIC */	struct	ifdebug int_input, int_output;	/* packet tracing stuff */	int	int_ipackets;			/* input packets received */	int	int_opackets;			/* output packets sent */	char	*int_name;			/* from kernel if structure */	u_short	int_transitions;		/* times gone up-down */};/* * 0x1 to 0x10 are reused from the kernel's ifnet definitions, * the others agree with the RTS_ flags defined elsewhere. */#define	IFF_UP		0x1		/* interface is up */#define	IFF_BROADCAST	0x2		/* broadcast address valid */#define	IFF_DEBUG	0x4		/* turn on debugging */#define	IFF_LOOPBACK	0x8		/* software loopback net */#define	IFF_POINTOPOINT	0x10		/* interface is point-to-point link */#define	IFF_SUBNET	0x1000		/* interface on subnetted network */#define	IFF_PASSIVE	0x2000		/* can't tell if up/down */#define	IFF_INTERFACE	0x4000		/* hardware interface */#define	IFF_REMOTE	0x8000		/* interface isn't on this machine */struct	interface *if_ifwithaddr();struct	interface *if_ifwithdstaddr();struct	interface *if_ifwithnet();struct	interface *if_iflookup();