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/ip6protosw.h

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    1 /*-
    2  * SPDX-License-Identifier: BSD-3-Clause
    3  *
    4  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
    5  * All rights reserved.
    6  *
    7  * Redistribution and use in source and binary forms, with or without
    8  * modification, are permitted provided that the following conditions
    9  * are met:
   10  * 1. Redistributions of source code must retain the above copyright
   11  *    notice, this list of conditions and the following disclaimer.
   12  * 2. Redistributions in binary form must reproduce the above copyright
   13  *    notice, this list of conditions and the following disclaimer in the
   14  *    documentation and/or other materials provided with the distribution.
   15  * 3. Neither the name of the project nor the names of its contributors
   16  *    may be used to endorse or promote products derived from this software
   17  *    without specific prior written permission.
   18  *
   19  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
   20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
   23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   29  * SUCH DAMAGE.
   30  *
   31  *      $KAME: ip6protosw.h,v 1.25 2001/09/26 06:13:03 keiichi Exp $
   32  */
   33 
   34 /*-
   35  * Copyright (c) 1982, 1986, 1993
   36  *      The Regents of the University of California.  All rights reserved.
   37  *
   38  * Redistribution and use in source and binary forms, with or without
   39  * modification, are permitted provided that the following conditions
   40  * are met:
   41  * 1. Redistributions of source code must retain the above copyright
   42  *    notice, this list of conditions and the following disclaimer.
   43  * 2. Redistributions in binary form must reproduce the above copyright
   44  *    notice, this list of conditions and the following disclaimer in the
   45  *    documentation and/or other materials provided with the distribution.
   46  * 3. Neither the name of the University nor the names of its contributors
   47  *    may be used to endorse or promote products derived from this software
   48  *    without specific prior written permission.
   49  *
   50  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   51  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   52  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   53  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   54  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   55  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   56  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   57  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   58  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   59  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   60  * SUCH DAMAGE.
   61  *
   62  *      @(#)protosw.h   8.1 (Berkeley) 6/2/93
   63  *      BSDI protosw.h,v 2.3 1996/10/11 16:02:40 pjd Exp
   64  * $FreeBSD: stable/12/sys/netinet6/ip6protosw.h 326023 2017-11-20 19:43:44Z pfg $
   65  */
   66 
   67 #ifndef _NETINET6_IP6PROTOSW_H_
   68 #define _NETINET6_IP6PROTOSW_H_
   69 
   70 /*
   71  * Protocol switch table for IPv6.
   72  * All other definitions should refer to sys/protosw.h
   73  */
   74 
   75 struct mbuf;
   76 struct sockaddr;
   77 struct socket;
   78 struct domain;
   79 struct thread;
   80 struct ip6_hdr;
   81 struct icmp6_hdr;
   82 struct in6_addr;
   83 struct pr_usrreqs;
   84 
   85 /*
   86  * argument type for the last arg of pr_ctlinput().
   87  * should be consulted only with AF_INET6 family.
   88  *
   89  * IPv6 ICMP IPv6 [exthdrs] finalhdr payload
   90  * ^    ^    ^              ^
   91  * |    |    ip6c_ip6       ip6c_off
   92  * |    ip6c_icmp6
   93  * ip6c_m
   94  *
   95  * ip6c_finaldst usually points to ip6c_ip6->ip6_dst.  if the original
   96  * (internal) packet carries a routing header, it may point the final
   97  * destination address in the routing header.
   98  *
   99  * ip6c_src: ip6c_ip6->ip6_src + scope info + flowlabel in ip6c_ip6
  100  *      (beware of flowlabel, if you try to compare it against others)
  101  * ip6c_dst: ip6c_finaldst + scope info
  102  */
  103 struct ip6ctlparam {
  104         struct mbuf *ip6c_m;            /* start of mbuf chain */
  105         struct icmp6_hdr *ip6c_icmp6;   /* icmp6 header of target packet */
  106         struct ip6_hdr *ip6c_ip6;       /* ip6 header of target packet */
  107         int ip6c_off;                   /* offset of the target proto header */
  108         struct sockaddr_in6 *ip6c_src;  /* srcaddr w/ additional info */
  109         struct sockaddr_in6 *ip6c_dst;  /* (final) dstaddr w/ additional info */
  110         struct in6_addr *ip6c_finaldst; /* final destination address */
  111         void *ip6c_cmdarg;              /* control command dependent data */
  112         u_int8_t ip6c_nxt;              /* final next header field */
  113 };
  114 
  115 #ifdef _KERNEL
  116 extern struct protosw inet6sw[];
  117 #endif
  118 
  119 #endif /* !_NETINET6_IP6PROTOSW_H_ */

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