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1/* $FreeBSD: src/sys/netinet6/ip6protosw.h,v 1.2.2.3 2001/07/03 11:01:54 ume Exp $ */
2/* $KAME: ip6protosw.h,v 1.22 2001/02/08 18:02:08 itojun Exp $ */
3
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4/*
5 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
6 * All rights reserved.
9bccf70c 7 *
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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.
9bccf70c 19 *
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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/* BSDI protosw.h,v 2.3 1996/10/11 16:02:40 pjd Exp */
35
36/*-
37 * Copyright (c) 1982, 1986, 1993
38 * The Regents of the University of California. All rights reserved.
39 *
40 * Redistribution and use in source and binary forms, with or without
41 * modification, are permitted provided that the following conditions
42 * are met:
43 * 1. Redistributions of source code must retain the above copyright
44 * notice, this list of conditions and the following disclaimer.
45 * 2. Redistributions in binary form must reproduce the above copyright
46 * notice, this list of conditions and the following disclaimer in the
47 * documentation and/or other materials provided with the distribution.
48 * 3. All advertising materials mentioning features or use of this software
49 * must display the following acknowledgement:
50 * This product includes software developed by the University of
51 * California, Berkeley and its contributors.
52 * 4. Neither the name of the University nor the names of its contributors
53 * may be used to endorse or promote products derived from this software
54 * without specific prior written permission.
55 *
56 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
57 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
58 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
59 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
60 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
61 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
62 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
63 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
64 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
65 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
66 * SUCH DAMAGE.
67 *
68 * @(#)protosw.h 8.1 (Berkeley) 6/2/93
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69 */
70
71#ifndef _NETINET6_IP6PROTOSW_H_
72#define _NETINET6_IP6PROTOSW_H_
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73#include <sys/appleapiopts.h>
74#ifdef __APPLE_API_PRIVATE
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75
76/*
77 * Protocol switch table for IPv6.
78 * All other definitions should refer to sys/protosw.h
79 */
80
81struct mbuf;
82struct sockaddr;
83struct socket;
84struct domain;
85struct proc;
86struct ip6_hdr;
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87struct icmp6_hdr;
88struct in6_addr;
1c79356b 89struct pr_usrreqs;
1c79356b 90
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91/*
92 * argument type for the last arg of pr_ctlinput().
93 * should be consulted only with AF_INET6 family.
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94 *
95 * IPv6 ICMP IPv6 [exthdrs] finalhdr paylaod
96 * ^ ^ ^ ^
97 * | | ip6c_ip6 ip6c_off
98 * | ip6c_icmp6
99 * ip6c_m
100 *
101 * ip6c_finaldst usually points to ip6c_ip6->ip6_dst. if the original
102 * (internal) packet carries a routing header, it may point the final
103 * dstination address in the routing header.
104 *
105 * ip6c_src: ip6c_ip6->ip6_src + scope info + flowlabel in ip6c_ip6
106 * (beware of flowlabel, if you try to compare it against others)
107 * ip6c_dst: ip6c_finaldst + scope info
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108 */
109struct ip6ctlparam {
110 struct mbuf *ip6c_m; /* start of mbuf chain */
9bccf70c 111 struct icmp6_hdr *ip6c_icmp6; /* icmp6 header of target packet */
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112 struct ip6_hdr *ip6c_ip6; /* ip6 header of target packet */
113 int ip6c_off; /* offset of the target proto header */
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114 struct sockaddr_in6 *ip6c_src; /* srcaddr w/ additional info */
115 struct sockaddr_in6 *ip6c_dst; /* (final) dstaddr w/ additional info */
116 struct in6_addr *ip6c_finaldst; /* final destination address */
117 void *ip6c_cmdarg; /* control command dependent data */
118 u_int8_t ip6c_nxt; /* final next header field */
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119};
120
121struct ip6protosw {
122 short pr_type; /* socket type used for */
123 struct domain *pr_domain; /* domain protocol a member of */
124 short pr_protocol; /* protocol number */
125 unsigned int pr_flags; /* see below */
126/* protocol-protocol hooks */
9bccf70c 127 int (*pr_input) __P((struct mbuf **, int *));
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128 /* input to protocol (from below) */
129 int (*pr_output) __P((struct mbuf *m, struct socket *so,
130 struct sockaddr_in6 *, struct mbuf *));
131 /* output to protocol (from above) */
55e303ae 132 void (*pr_ctlinput)__P((int, struct sockaddr *, void *));
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133 /* control input (from below) */
134 int (*pr_ctloutput)__P((struct socket *, struct sockopt *));
135 /* control output (from above) */
136/* user-protocol hook */
137 int (*pr_usrreq) /* user request: see list below */
138 __P((struct socket *, int, struct mbuf *,
139 struct mbuf *, struct mbuf *, struct proc *));
140
141/* utility hooks */
142 void (*pr_init) __P((void)); /* initialization hook */
143 void (*pr_fasttimo) __P((void));
144 /* fast timeout (200ms) */
145 void (*pr_slowtimo) __P((void));
146 /* slow timeout (500ms) */
147 void (*pr_drain) __P((void));
148 /* flush any excess space possible */
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149#ifdef __APPLE__
150 /* for compat. with IPv4 protosw */
1c79356b 151 int (*pr_sysctl)(); /* sysctl for protocol */
9bccf70c 152#endif
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153
154 struct pr_usrreqs *pr_usrreqs; /* supersedes pr_usrreq() */
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155#ifdef __APPLE__
156 /* Filter hooks */
1c79356b 157 TAILQ_HEAD(pr6_sfilter, NFDescriptor) pr_sfilter;
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158 struct ip6protosw *pr_next; /* Chain for domain */
159 u_long reserved[4];
160#endif
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161};
162
9bccf70c 163#endif /* __APPLE_API_PRIVATE */
1c79356b 164#endif