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/netinet/ip_encap.h

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    1 /*      $FreeBSD: stable/9/sys/netinet/ip_encap.h 139823 2005-01-07 01:45:51Z imp $     */
    2 /*      $KAME: ip_encap.h,v 1.7 2000/03/25 07:23:37 sumikawa 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 _NETINET_IP_ENCAP_H_
   34 #define _NETINET_IP_ENCAP_H_
   35 
   36 #ifdef _KERNEL
   37 
   38 struct encaptab {
   39         LIST_ENTRY(encaptab) chain;
   40         int af;
   41         int proto;                      /* -1: don't care, I'll check myself */
   42         struct sockaddr_storage src;    /* my addr */
   43         struct sockaddr_storage srcmask;
   44         struct sockaddr_storage dst;    /* remote addr */
   45         struct sockaddr_storage dstmask;
   46         int (*func)(const struct mbuf *, int, int, void *);
   47         const struct protosw *psw;      /* only pr_input will be used */
   48         void *arg;                      /* passed via m->m_pkthdr.aux */
   49 };
   50 
   51 void    encap_init(void);
   52 void    encap4_input(struct mbuf *, int);
   53 int     encap6_input(struct mbuf **, int *, int);
   54 const struct encaptab *encap_attach(int, int, const struct sockaddr *,
   55         const struct sockaddr *, const struct sockaddr *,
   56         const struct sockaddr *, const struct protosw *, void *);
   57 const struct encaptab *encap_attach_func(int, int,
   58         int (*)(const struct mbuf *, int, int, void *),
   59         const struct protosw *, void *);
   60 int     encap_detach(const struct encaptab *);
   61 void    *encap_getarg(struct mbuf *);
   62 #endif
   63 
   64 #endif /*_NETINET_IP_ENCAP_H_*/

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