82 lines
3.1 KiB
C
82 lines
3.1 KiB
C
/* $KAME: ip_encap.h,v 1.7 2000/03/25 07:23:37 sumikawa Exp $ */
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/*-
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
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* Copyright (c) 2018 Andrey V. Elsukov <ae@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the project nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef _NETINET_IP_ENCAP_H_
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#define _NETINET_IP_ENCAP_H_
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#ifdef _KERNEL
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int encap4_input(struct mbuf **, int *, int);
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int encap6_input(struct mbuf **, int *, int);
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typedef int (*encap_lookup_t)(const struct mbuf *, int, int, void **);
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typedef int (*encap_check_t)(const struct mbuf *, int, int, void *);
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typedef int (*encap_input_t)(struct mbuf *, int, int, void *);
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typedef void (*encap_srcaddr_t)(void *, const struct sockaddr *, int);
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struct encap_config {
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int proto; /* protocol */
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int min_length; /* minimum packet length */
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int max_hdrsize; /* maximum header size */
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int exact_match; /* a packet is exactly matched */
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#define ENCAP_DRV_LOOKUP 0x7fffffff
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encap_lookup_t lookup;
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encap_check_t check;
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encap_input_t input;
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void *pad[3];
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};
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struct encaptab;
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struct srcaddrtab;
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const struct encaptab *ip_encap_attach(const struct encap_config *,
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void *arg, int mflags);
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const struct encaptab *ip6_encap_attach(const struct encap_config *,
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void *arg, int mflags);
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const struct srcaddrtab *ip_encap_register_srcaddr(encap_srcaddr_t,
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void *arg, int mflags);
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const struct srcaddrtab *ip6_encap_register_srcaddr(encap_srcaddr_t,
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void *arg, int mflags);
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int ip_encap_unregister_srcaddr(const struct srcaddrtab *);
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int ip6_encap_unregister_srcaddr(const struct srcaddrtab *);
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int ip_encap_detach(const struct encaptab *);
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int ip6_encap_detach(const struct encaptab *);
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#endif
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#endif /*_NETINET_IP_ENCAP_H_*/
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