162587Sitojun/*	$FreeBSD$	*/
262587Sitojun/*	$KAME: ip_encap.h,v 1.7 2000/03/25 07:23:37 sumikawa Exp $	*/
362587Sitojun
4139823Simp/*-
562587Sitojun * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
662587Sitojun * All rights reserved.
762587Sitojun *
862587Sitojun * Redistribution and use in source and binary forms, with or without
962587Sitojun * modification, are permitted provided that the following conditions
1062587Sitojun * are met:
1162587Sitojun * 1. Redistributions of source code must retain the above copyright
1262587Sitojun *    notice, this list of conditions and the following disclaimer.
1362587Sitojun * 2. Redistributions in binary form must reproduce the above copyright
1462587Sitojun *    notice, this list of conditions and the following disclaimer in the
1562587Sitojun *    documentation and/or other materials provided with the distribution.
1662587Sitojun * 3. Neither the name of the project nor the names of its contributors
1762587Sitojun *    may be used to endorse or promote products derived from this software
1862587Sitojun *    without specific prior written permission.
1962587Sitojun *
2062587Sitojun * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
2162587Sitojun * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
2262587Sitojun * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
2362587Sitojun * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
2462587Sitojun * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
2562587Sitojun * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
2662587Sitojun * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2762587Sitojun * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
2862587Sitojun * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
2962587Sitojun * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
3062587Sitojun * SUCH DAMAGE.
3162587Sitojun */
3262587Sitojun
3362587Sitojun#ifndef _NETINET_IP_ENCAP_H_
3462587Sitojun#define _NETINET_IP_ENCAP_H_
3562587Sitojun
3662587Sitojun#ifdef _KERNEL
3762587Sitojun
3862587Sitojunstruct encaptab {
3962587Sitojun	LIST_ENTRY(encaptab) chain;
4062587Sitojun	int af;
4162587Sitojun	int proto;			/* -1: don't care, I'll check myself */
4262587Sitojun	struct sockaddr_storage src;	/* my addr */
4362587Sitojun	struct sockaddr_storage srcmask;
4462587Sitojun	struct sockaddr_storage dst;	/* remote addr */
4562587Sitojun	struct sockaddr_storage dstmask;
4692723Salfred	int (*func)(const struct mbuf *, int, int, void *);
4762587Sitojun	const struct protosw *psw;	/* only pr_input will be used */
4862587Sitojun	void *arg;			/* passed via m->m_pkthdr.aux */
4962587Sitojun};
5062587Sitojun
5192723Salfredvoid	encap_init(void);
5292723Salfredvoid	encap4_input(struct mbuf *, int);
5392723Salfredint	encap6_input(struct mbuf **, int *, int);
5492723Salfredconst struct encaptab *encap_attach(int, int, const struct sockaddr *,
5562587Sitojun	const struct sockaddr *, const struct sockaddr *,
5692723Salfred	const struct sockaddr *, const struct protosw *, void *);
5792723Salfredconst struct encaptab *encap_attach_func(int, int,
5892723Salfred	int (*)(const struct mbuf *, int, int, void *),
5992723Salfred	const struct protosw *, void *);
6092723Salfredint	encap_detach(const struct encaptab *);
6192723Salfredvoid	*encap_getarg(struct mbuf *);
6262587Sitojun#endif
6362587Sitojun
6462587Sitojun#endif /*_NETINET_IP_ENCAP_H_*/
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