1/* $OpenBSD: ip6protosw.h,v 1.16 2022/02/22 01:02:57 guenther 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/*-
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 * 3. 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 */
64
65#ifndef _NETINET6_IP6PROTOSW_H_
66#define _NETINET6_IP6PROTOSW_H_
67
68/*
69 * Protocol switch table for IPv6.
70 * All other definitions should refer to sys/protosw.h
71 */
72
73struct mbuf;
74struct sockaddr;
75struct socket;
76struct domain;
77struct proc;
78struct ip6_hdr;
79struct icmp6_hdr;
80struct in6_addr;
81
82/*
83 * argument type for the last arg of pr_ctlinput().
84 * should be consulted only with AF_INET6 family.
85 *
86 * IPv6 ICMP IPv6 [exthdrs] finalhdr payload
87 * ^ ^ ^ ^
88 * | | ip6c_ip6 ip6c_off
89 * | ip6c_icmp6
90 * ip6c_m
91 *
92 * ip6c_finaldst usually points to ip6c_ip6->ip6_dst. if the original
93 * (internal) packet carries a routing header, it may point the final
94 * destination address in the routing header.
95 *
96 * ip6c_src: ip6c_ip6->ip6_src + scope info + flowlabel in ip6c_ip6
97 * (beware of flowlabel, if you try to compare it against others)
98 * ip6c_dst: ip6c_finaldst + scope info
99 */
100struct ip6ctlparam {
101 struct mbuf *ip6c_m; /* start of mbuf chain */
102 struct icmp6_hdr *ip6c_icmp6; /* icmp6 header of target packet */
103 struct ip6_hdr *ip6c_ip6; /* ip6 header of target packet */
104 int ip6c_off; /* offset of the target proto header */
105 struct sockaddr_in6 *ip6c_src; /* srcaddr w/ additional info */
106 struct sockaddr_in6 *ip6c_dst; /* (final) dstaddr w/ additional info */
107 struct in6_addr *ip6c_finaldst; /* final destination address */
108 void *ip6c_cmdarg; /* control command dependent data */
109 u_int8_t ip6c_nxt; /* final next header field */
110};
111
112#endif /* !_NETINET6_IP6PROTOSW_H_ */