ip6protosw.h revision 330897 
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 * 4. 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/11/sys/netinet6/ip6protosw.h 330897 2018-03-14 03:19:51Z eadler $
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
75struct mbuf;
76struct sockaddr;
77struct socket;
78struct domain;
79struct thread;
80struct ip6_hdr;
81struct icmp6_hdr;
82struct in6_addr;
83struct 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 */
103struct 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
116extern struct protosw inet6sw[];
117#endif
118
119#endif /* !_NETINET6_IP6PROTOSW_H_ */
120