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154 lines
6.0 KiB
C
154 lines
6.0 KiB
C
/* $FreeBSD$ */
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/* $KAME: ip6protosw.h,v 1.25 2001/09/26 06:13:03 keiichi Exp $ */
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/*-
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* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the project nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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/* BSDI protosw.h,v 2.3 1996/10/11 16:02:40 pjd Exp */
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/*-
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* Copyright (c) 1982, 1986, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)protosw.h 8.1 (Berkeley) 6/2/93
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*/
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#ifndef _NETINET6_IP6PROTOSW_H_
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#define _NETINET6_IP6PROTOSW_H_
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/*
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* Protocol switch table for IPv6.
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* All other definitions should refer to sys/protosw.h
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*/
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struct mbuf;
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struct sockaddr;
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struct socket;
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struct domain;
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struct thread;
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struct ip6_hdr;
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struct icmp6_hdr;
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struct in6_addr;
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struct pr_usrreqs;
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/*
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* argument type for the last arg of pr_ctlinput().
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* should be consulted only with AF_INET6 family.
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*
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* IPv6 ICMP IPv6 [exthdrs] finalhdr payload
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* ^ ^ ^ ^
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* | | ip6c_ip6 ip6c_off
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* | ip6c_icmp6
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* ip6c_m
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*
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* ip6c_finaldst usually points to ip6c_ip6->ip6_dst. if the original
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* (internal) packet carries a routing header, it may point the final
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* dstination address in the routing header.
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*
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* ip6c_src: ip6c_ip6->ip6_src + scope info + flowlabel in ip6c_ip6
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* (beware of flowlabel, if you try to compare it against others)
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* ip6c_dst: ip6c_finaldst + scope info
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*/
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struct ip6ctlparam {
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struct mbuf *ip6c_m; /* start of mbuf chain */
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struct icmp6_hdr *ip6c_icmp6; /* icmp6 header of target packet */
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struct ip6_hdr *ip6c_ip6; /* ip6 header of target packet */
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int ip6c_off; /* offset of the target proto header */
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struct sockaddr_in6 *ip6c_src; /* srcaddr w/ additional info */
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struct sockaddr_in6 *ip6c_dst; /* (final) dstaddr w/ additional info */
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struct in6_addr *ip6c_finaldst; /* final destination address */
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void *ip6c_cmdarg; /* control command dependent data */
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u_int8_t ip6c_nxt; /* final next header field */
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};
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struct ip6protosw {
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short pr_type; /* socket type used for */
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struct domain *pr_domain; /* domain protocol a member of */
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short pr_protocol; /* protocol number */
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short pr_flags; /* see below */
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/* protocol-protocol hooks */
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int (*pr_input) /* input to protocol (from below) */
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__P((struct mbuf **, int *, int));
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int (*pr_output) /* output to protocol (from above) */
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__P((struct mbuf *, ...));
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void (*pr_ctlinput) /* control input (from below) */
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__P((int, struct sockaddr *, void *));
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int (*pr_ctloutput) /* control output (from above) */
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__P((struct socket *, struct sockopt *));
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/* user-protocol hook */
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int (*pr_usrreq) /* user request: see list below */
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__P((struct socket *, int, struct mbuf *,
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struct mbuf *, struct mbuf *, struct thread *));
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/* utility hooks */
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void (*pr_init) /* initialization hook */
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__P((void));
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void (*pr_fasttimo) /* fast timeout (200ms) */
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__P((void));
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void (*pr_slowtimo) /* slow timeout (500ms) */
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__P((void));
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void (*pr_drain) /* flush any excess space possible */
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__P((void));
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struct pr_usrreqs *pr_usrreqs; /* supersedes pr_usrreq() */
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};
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#ifdef _KERNEL
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extern struct ip6protosw inet6sw[];
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#endif
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#endif /* !_NETINET6_IP6PROTOSW_H_ */
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