The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/netinet6/in6_gif.h

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    1 /*      $NetBSD: in6_gif.h,v 1.18 2019/10/30 03:45:59 knakahara Exp $   */
    2 /*      $KAME: in6_gif.h,v 1.7 2001/07/26 06:53:16 jinmei Exp $ */
    3 
    4 /*
    5  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
    6  * All rights reserved.
    7  *
    8  * Redistribution and use in source and binary forms, with or without
    9  * modification, are permitted provided that the following conditions
   10  * are met:
   11  * 1. Redistributions of source code must retain the above copyright
   12  *    notice, this list of conditions and the following disclaimer.
   13  * 2. Redistributions in binary form must reproduce the above copyright
   14  *    notice, this list of conditions and the following disclaimer in the
   15  *    documentation and/or other materials provided with the distribution.
   16  * 3. Neither the name of the project nor the names of its contributors
   17  *    may be used to endorse or promote products derived from this software
   18  *    without specific prior written permission.
   19  *
   20  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
   21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
   24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   30  * SUCH DAMAGE.
   31  */
   32 
   33 #ifndef _NETINET6_IN6_GIF_H_
   34 #define _NETINET6_IN6_GIF_H_
   35 
   36 #define GIF_HLIM        30
   37 extern int      ip6_gif_hlim;           /* Hop limit for gif encap packet */
   38 extern int      ip6_gif_pmtu;           /* Default Path MTU setting for gif tunnels */
   39 
   40 #define GIF_PMTU_SYSDEFAULT     -1      /* Use system default value (ip6_gif_pmtu) */
   41 #define GIF_PMTU_MINMTU         0       /* Fragmented by IPV6_MINMTU */
   42 #define GIF_PMTU_OUTERMTU       1       /* Fragmented by Path MTU of outer path */
   43 
   44 struct gif_variant;
   45 struct sockaddr;
   46 int in6_gif_input(struct mbuf **, int *, int, void *);
   47 #ifdef GIF_ENCAPCHECK
   48 int gif_encapcheck6(struct mbuf *, int, int, struct gif_variant *);
   49 #endif
   50 int in6_gif_attach(struct gif_variant *);
   51 int in6_gif_detach(struct gif_variant *);
   52 void *in6_gif_ctlinput(int, const struct sockaddr *, void *, void *);
   53 
   54 #endif /* !_NETINET6_IN6_GIF_H_ */

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