55 lines
2.5 KiB
C
55 lines
2.5 KiB
C
/* $NetBSD: in6_gif.h,v 1.18 2019/10/30 03:45:59 knakahara Exp $ */
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/* $KAME: in6_gif.h,v 1.7 2001/07/26 06:53:16 jinmei Exp $ */
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/*
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* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
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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 _NETINET6_IN6_GIF_H_
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#define _NETINET6_IN6_GIF_H_
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#define GIF_HLIM 30
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extern int ip6_gif_hlim; /* Hop limit for gif encap packet */
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extern int ip6_gif_pmtu; /* Default Path MTU setting for gif tunnels */
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#define GIF_PMTU_SYSDEFAULT -1 /* Use system default value (ip6_gif_pmtu) */
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#define GIF_PMTU_MINMTU 0 /* Fragmented by IPV6_MINMTU */
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#define GIF_PMTU_OUTERMTU 1 /* Fragmented by Path MTU of outer path */
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struct gif_variant;
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struct sockaddr;
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int in6_gif_input(struct mbuf **, int *, int, void *);
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#ifdef GIF_ENCAPCHECK
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int gif_encapcheck6(struct mbuf *, int, int, struct gif_variant *);
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#endif
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int in6_gif_attach(struct gif_variant *);
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int in6_gif_detach(struct gif_variant *);
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void *in6_gif_ctlinput(int, const struct sockaddr *, void *, void *);
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#endif /* !_NETINET6_IN6_GIF_H_ */
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