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 /*      $FreeBSD: releng/5.1/sys/netinet6/ip6protosw.h 95023 2002-04-19 04:46:24Z suz $ */
    2 /*      $KAME: ip6protosw.h,v 1.25 2001/09/26 06:13:03 keiichi 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 
   34 /*      BSDI protosw.h,v 2.3 1996/10/11 16:02:40 pjd Exp        */
   35 
   36 /*-
   37  * Copyright (c) 1982, 1986, 1993
   38  *      The Regents of the University of California.  All rights reserved.
   39  *
   40  * Redistribution and use in source and binary forms, with or without
   41  * modification, are permitted provided that the following conditions
   42  * are met:
   43  * 1. Redistributions of source code must retain the above copyright
   44  *    notice, this list of conditions and the following disclaimer.
   45  * 2. Redistributions in binary form must reproduce the above copyright
   46  *    notice, this list of conditions and the following disclaimer in the
   47  *    documentation and/or other materials provided with the distribution.
   48  * 3. All advertising materials mentioning features or use of this software
   49  *    must display the following acknowledgement:
   50  *      This product includes software developed by the University of
   51  *      California, Berkeley and its contributors.
   52  * 4. Neither the name of the University nor the names of its contributors
   53  *    may be used to endorse or promote products derived from this software
   54  *    without specific prior written permission.
   55  *
   56  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   57  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   58  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   59  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   60  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   61  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   62  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   63  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   64  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   65  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   66  * SUCH DAMAGE.
   67  *
   68  *      @(#)protosw.h   8.1 (Berkeley) 6/2/93
   69  */
   70 
   71 #ifndef _NETINET6_IP6PROTOSW_H_
   72 #define _NETINET6_IP6PROTOSW_H_
   73 
   74 /*
   75  * For pfil_head structure.
   76  */
   77 #include <net/pfil.h>
   78 
   79 /*
   80  * Protocol switch table for IPv6.
   81  * All other definitions should refer to sys/protosw.h
   82  */
   83 
   84 struct mbuf;
   85 struct sockaddr;
   86 struct socket;
   87 struct domain;
   88 struct thread;
   89 struct ip6_hdr;
   90 struct icmp6_hdr;
   91 struct in6_addr;
   92 struct pr_usrreqs;
   93 
   94 /*
   95  * argument type for the last arg of pr_ctlinput().
   96  * should be consulted only with AF_INET6 family.
   97  *
   98  * IPv6 ICMP IPv6 [exthdrs] finalhdr paylaod
   99  * ^    ^    ^              ^
  100  * |    |    ip6c_ip6       ip6c_off
  101  * |    ip6c_icmp6
  102  * ip6c_m
  103  *
  104  * ip6c_finaldst usually points to ip6c_ip6->ip6_dst.  if the original
  105  * (internal) packet carries a routing header, it may point the final
  106  * dstination address in the routing header.
  107  *
  108  * ip6c_src: ip6c_ip6->ip6_src + scope info + flowlabel in ip6c_ip6
  109  *      (beware of flowlabel, if you try to compare it against others)
  110  * ip6c_dst: ip6c_finaldst + scope info
  111  */
  112 struct ip6ctlparam {
  113         struct mbuf *ip6c_m;            /* start of mbuf chain */
  114         struct icmp6_hdr *ip6c_icmp6;   /* icmp6 header of target packet */
  115         struct ip6_hdr *ip6c_ip6;       /* ip6 header of target packet */
  116         int ip6c_off;                   /* offset of the target proto header */
  117         struct sockaddr_in6 *ip6c_src;  /* srcaddr w/ additional info */
  118         struct sockaddr_in6 *ip6c_dst;  /* (final) dstaddr w/ additional info */
  119         struct in6_addr *ip6c_finaldst; /* final destination address */
  120         void *ip6c_cmdarg;              /* control command dependent data */
  121         u_int8_t ip6c_nxt;              /* final next header field */
  122 };
  123 
  124 struct ip6protosw {
  125         short   pr_type;                /* socket type used for */
  126         struct  domain *pr_domain;      /* domain protocol a member of */
  127         short   pr_protocol;            /* protocol number */
  128         short   pr_flags;               /* see below */
  129 
  130 /* protocol-protocol hooks */
  131         int     (*pr_input)             /* input to protocol (from below) */
  132                         __P((struct mbuf **, int *, int));
  133         int     (*pr_output)            /* output to protocol (from above) */
  134                         __P((struct mbuf *, ...));
  135         void    (*pr_ctlinput)          /* control input (from below) */
  136                         __P((int, struct sockaddr *, void *));
  137         int     (*pr_ctloutput)         /* control output (from above) */
  138                         __P((struct socket *, struct sockopt *));
  139 
  140 /* user-protocol hook */
  141         int     (*pr_usrreq)            /* user request: see list below */
  142                         __P((struct socket *, int, struct mbuf *,
  143                              struct mbuf *, struct mbuf *, struct thread *));
  144 
  145 /* utility hooks */
  146         void    (*pr_init)              /* initialization hook */
  147                         __P((void));
  148 
  149         void    (*pr_fasttimo)          /* fast timeout (200ms) */
  150                         __P((void));
  151         void    (*pr_slowtimo)          /* slow timeout (500ms) */
  152                         __P((void));
  153         void    (*pr_drain)             /* flush any excess space possible */
  154                         __P((void));
  155         struct  pr_usrreqs *pr_usrreqs; /* supersedes pr_usrreq() */
  156         struct  pfil_head       pr_pfh;
  157 };
  158 
  159 #ifdef _KERNEL
  160 extern struct ip6protosw inet6sw[];
  161 #endif
  162 
  163 #endif /* !_NETINET6_IP6PROTOSW_H_ */

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