/*
 * Copyright (c) 1982, 1986, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *	@(#)domain.h	8.1 (Berkeley) 6/2/93
 * $FreeBSD: src/sys/sys/domain.h,v 1.14 1999/12/29 04:24:40 peter Exp $
 */

#ifndef _SYS_DOMAIN_H_
#define _SYS_DOMAIN_H_

#include <sys/queue.h>

/*
 * Structure per communications domain.
 */

/*
 * Forward structure declarations for function prototypes [sic].
 */
struct	mbuf;
struct	ifnet;

SLIST_HEAD(domainlist, domain);

struct	domain {
	int	dom_family;		/* AF_xxx */
	char	*dom_name;
	void	(*dom_init)(void);	/* initialize domain data structures */
	int	(*dom_externalize)(struct mbuf *, int);	/* externalize access
							 * rights */
	void	(*dom_dispose)(struct mbuf *);	/* dispose of internalized
						 * rights */
	struct	protosw *dom_protosw;
	struct	protosw *dom_protoswNPROTOSW;
	SLIST_ENTRY(domain) dom_next;
	int	(*dom_rtattach)(void **, int);	/* initialize routing table */
	int	dom_rtoffset;		/* an arg to rtattach, in bytes */
	int	dom_maxrtkey;		/* for routing layer */
	void	*(*dom_ifattach)(struct ifnet *);
	void	(*dom_ifdetach)(struct ifnet *, void *);
	void	(*dom_if_up)(struct ifnet *);
	void	(*dom_if_down)(struct ifnet *);
					/* af-dependent data on ifnet */
};

#ifdef _KERNEL
extern struct domainlist domains;
extern struct domain	 localdomain;

void		net_add_domain(void *);

#define DOMAIN_SET(name) \
	SYSINIT(domain_ ## name, SI_SUB_PROTO_DOMAIN, SI_ORDER_SECOND, net_add_domain, & name ## domain)

#endif

#endif
