xref: /f-stack/freebsd/netinet6/ip6protosw.h (revision 22ce4aff)
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  * 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  *	BSDI protosw.h,v 2.3 1996/10/11 16:02:40 pjd Exp
64  * $FreeBSD$
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 thread;
80 struct ip6_hdr;
81 struct icmp6_hdr;
82 struct in6_addr;
83 struct 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  */
103 struct 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
116 extern struct protosw inet6sw[];
117 #endif
118 
119 #endif /* !_NETINET6_IP6PROTOSW_H_ */
120