FreeBSD/Linux Kernel Cross Reference
sys/bsd/netinet6/ip6protosw.h

     /*      $FreeBSD: src/sys/netinet6/ip6protosw.h,v 1.2.2.3 2001/07/03 11:01:54 ume Exp $ */
     /*      $KAME: ip6protosw.h,v 1.22 2001/02/08 18:02:08 itojun Exp $     */
     
     /*
      * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
      * All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
     * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 3. Neither the name of the project nor the names of its contributors
     *    may be used to endorse or promote products derived from this software
     *    without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     */
    
    /*      BSDI protosw.h,v 2.3 1996/10/11 16:02:40 pjd Exp        */
    
    /*-
     * Copyright (c) 1982, 1986, 1993
     *      The Regents of the University of California.  All rights reserved.
     *
     * Redistribution and use in source and binary forms, with or without
     * modification, are permitted provided that the following conditions
     * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 3. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *      This product includes software developed by the University of
     *      California, Berkeley and its contributors.
     * 4. Neither the name of the University nor the names of its contributors
     *    may be used to endorse or promote products derived from this software
     *    without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     *      @(#)protosw.h   8.1 (Berkeley) 6/2/93
     */
    
    #ifndef _NETINET6_IP6PROTOSW_H_
    #define _NETINET6_IP6PROTOSW_H_
    #include <sys/appleapiopts.h>
    #ifdef __APPLE_API_PRIVATE
    
    /*
     * Protocol switch table for IPv6.
     * All other definitions should refer to sys/protosw.h
     */
    
    struct mbuf;
    struct sockaddr;
    struct socket;
    struct domain;
    struct proc;
    struct ip6_hdr;
    struct icmp6_hdr;
    struct in6_addr;
    struct pr_usrreqs;
    
    /*
     * argument type for the last arg of pr_ctlinput().
     * should be consulted only with AF_INET6 family.
     *
     * IPv6 ICMP IPv6 [exthdrs] finalhdr paylaod
     * ^    ^    ^              ^
     * |    |    ip6c_ip6       ip6c_off
     * |    ip6c_icmp6
     * ip6c_m
    *
    * ip6c_finaldst usually points to ip6c_ip6->ip6_dst.  if the original
    * (internal) packet carries a routing header, it may point the final
    * dstination address in the routing header.
    *
    * ip6c_src: ip6c_ip6->ip6_src + scope info + flowlabel in ip6c_ip6
    *      (beware of flowlabel, if you try to compare it against others)
    * ip6c_dst: ip6c_finaldst + scope info
    */
   struct ip6ctlparam {
           struct mbuf *ip6c_m;            /* start of mbuf chain */
           struct icmp6_hdr *ip6c_icmp6;   /* icmp6 header of target packet */
           struct ip6_hdr *ip6c_ip6;       /* ip6 header of target packet */
           int ip6c_off;                   /* offset of the target proto header */
           struct sockaddr_in6 *ip6c_src;  /* srcaddr w/ additional info */
           struct sockaddr_in6 *ip6c_dst;  /* (final) dstaddr w/ additional info */
           struct in6_addr *ip6c_finaldst; /* final destination address */
           void *ip6c_cmdarg;              /* control command dependent data */
           u_int8_t ip6c_nxt;              /* final next header field */
   };
   
   struct ip6protosw {
           short   pr_type;                /* socket type used for */
           struct  domain *pr_domain;      /* domain protocol a member of */
           short   pr_protocol;            /* protocol number */
           unsigned int pr_flags;          /* see below */
   /* protocol-protocol hooks */
           int     (*pr_input) __P((struct mbuf **, int *));
                                           /* input to protocol (from below) */
           int     (*pr_output)    __P((struct mbuf *m, struct socket *so,
                                        struct sockaddr_in6 *, struct mbuf *));
                                           /* output to protocol (from above) */
           void    (*pr_ctlinput)__P((int, struct sockaddr *, void *));
                                           /* control input (from below) */
           int     (*pr_ctloutput)__P((struct socket *, struct sockopt *));
                                           /* control output (from above) */
   /* user-protocol hook */
           int     (*pr_usrreq)            /* user request: see list below */
                           __P((struct socket *, int, struct mbuf *,
                                struct mbuf *, struct mbuf *, struct proc *));
   
   /* utility hooks */
           void    (*pr_init) __P((void)); /* initialization hook */
           void    (*pr_fasttimo) __P((void));
                                           /* fast timeout (200ms) */
           void    (*pr_slowtimo) __P((void));
                                           /* slow timeout (500ms) */
           void    (*pr_drain) __P((void));
                                           /* flush any excess space possible */
   #ifdef __APPLE__
           /* for compat. with IPv4 protosw */
           int     (*pr_sysctl)();         /* sysctl for protocol */
   #endif
   
           struct  pr_usrreqs *pr_usrreqs; /* supersedes pr_usrreq() */
   #ifdef __APPLE__
           /* Filter hooks */
           TAILQ_HEAD(pr6_sfilter, NFDescriptor) pr_sfilter;
           struct ip6protosw *pr_next;     /* Chain for domain */
           u_long reserved[4];
   #endif
   };
   
   #endif /* __APPLE_API_PRIVATE */
   #endif

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