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 /*      $NetBSD: ip_encap.h,v 1.12 2008/04/24 11:38:37 ad Exp $ */
    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 #ifndef RNF_NORMAL
   39 #include <net/radix.h>
   40 #endif
   41 
   42 struct encaptab {
   43         struct radix_node nodes[2];
   44         LIST_ENTRY(encaptab) chain;
   45         int af;
   46         int proto;                      /* -1: don't care, I'll check myself */
   47         struct sockaddr *addrpack;      /* malloc'ed, for radix lookup */
   48         struct sockaddr *maskpack;      /* ditto */
   49         struct sockaddr *src;           /* my addr */
   50         struct sockaddr *srcmask;
   51         struct sockaddr *dst;           /* remote addr */
   52         struct sockaddr *dstmask;
   53         int (*func) (struct mbuf *, int, int, void *);
   54         const struct protosw *psw;      /* only pr_input will be used */
   55         void *arg;                      /* passed via PACKET_TAG_ENCAP */
   56 };
   57 
   58 void    encap_setkeylen(void);
   59 void    encap_init(void);
   60 void    encap4_input(struct mbuf *, ...);
   61 int     encap6_input(struct mbuf **, int *, int);
   62 const struct encaptab *encap_attach(int, int, const struct sockaddr *,
   63         const struct sockaddr *, const struct sockaddr *,
   64         const struct sockaddr *, const struct protosw *, void *);
   65 const struct encaptab *encap_attach_func(int, int,
   66         int (*)(struct mbuf *, int, int, void *),
   67         const struct protosw *, void *);
   68 void    *encap6_ctlinput(int, const struct sockaddr *, void *);
   69 int     encap_detach(const struct encaptab *);
   70 void    *encap_getarg(struct mbuf *);
   71 #endif
   72 
   73 #endif /* !_NETINET_IP_ENCAP_H_ */

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