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 /*      $NetBSD: ip6protosw.h,v 1.21 2008/08/06 15:01:23 plunky Exp $   */
    2 /*      $KAME: ip6protosw.h,v 1.22 2001/02/08 18:02:08 itojun 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. Neither the name of the University nor the names of its contributors
   49  *    may be used to endorse or promote products derived from this software
   50  *    without specific prior written permission.
   51  *
   52  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   53  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   54  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   55  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   56  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   57  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   58  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   59  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   60  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   61  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   62  * SUCH DAMAGE.
   63  *
   64  *      @(#)protosw.h   8.1 (Berkeley) 6/2/93
   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 proc;
   80 struct ip6_hdr;
   81 struct icmp6_hdr;
   82 struct in6_addr;
   83 
   84 /*
   85  * argument type for the last arg of pr_ctlinput().
   86  * should be consulted only with AF_INET6 family.
   87  *
   88  * IPv6 ICMP IPv6 [exthdrs] finalhdr paylaod
   89  * ^    ^    ^              ^
   90  * |    |    ip6c_ip6       ip6c_off
   91  * |    ip6c_icmp6
   92  * ip6c_m
   93  *
   94  * ip6c_finaldst usually points to ip6c_ip6->ip6_dst.  if the original
   95  * (internal) packet carries a routing header, it may point the final
   96  * dstination address in the routing header.
   97  *
   98  * ip6c_src: ip6c_ip6->ip6_src + scope info + flowlabel in ip6c_ip6
   99  *      (beware of flowlabel, if you try to compare it against others)
  100  * ip6c_dst: ip6c_finaldst + scope info
  101  */
  102 struct ip6ctlparam {
  103         struct mbuf *ip6c_m;            /* start of mbuf chain */
  104         struct icmp6_hdr *ip6c_icmp6;   /* icmp6 header of target packet */
  105         struct ip6_hdr *ip6c_ip6;       /* ip6 header of target packet */
  106         int ip6c_off;                   /* offset of the target proto header */
  107         struct sockaddr_in6 *ip6c_src;  /* srcaddr w/ additional info */
  108         struct sockaddr_in6 *ip6c_dst;  /* (final) dstaddr w/ additional info */
  109         struct in6_addr *ip6c_finaldst; /* final destination address */
  110         void *ip6c_cmdarg;              /* control command dependent data */
  111         u_int8_t ip6c_nxt;              /* final next header field */
  112 };
  113 
  114 struct ip6protosw {
  115         int     pr_type;                /* socket type used for */
  116         struct  domain *pr_domain;      /* domain protocol a member of */
  117         short   pr_protocol;            /* protocol number */
  118         short   pr_flags;               /* see below */
  119 
  120 /* protocol-protocol hooks */
  121         int     (*pr_input)             /* input to protocol (from below) */
  122                         (struct mbuf **, int *, int);
  123         int     (*pr_output)            /* output to protocol (from above) */
  124                         (struct mbuf *, struct socket *, struct sockaddr_in6 *,
  125                          struct mbuf *);
  126         void    *(*pr_ctlinput)         /* control input (from below) */
  127                         (int, const struct sockaddr *, void *);
  128         int     (*pr_ctloutput)         /* control output (from above) */
  129                         (int, struct socket *, struct sockopt *);
  130 
  131 /* user-protocol hook */
  132         int     (*pr_usrreq)            /* user request: see list below */
  133                         (struct socket *, int, struct mbuf *,
  134                              struct mbuf *, struct mbuf *, struct lwp *);
  135 
  136 /* utility hooks */
  137         void    (*pr_init)              /* initialization hook */
  138                         (void);
  139 
  140         void    (*pr_fasttimo)          /* fast timeout (200ms) */
  141                         (void);
  142         void    (*pr_slowtimo)          /* slow timeout (500ms) */
  143                         (void);
  144         void    (*pr_drain)             /* flush any excess space possible */
  145                         (void);
  146 };
  147 
  148 extern const struct ip6protosw inet6sw[];
  149 
  150 #endif /* !_NETINET6_IP6PROTOSW_H_ */

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