1 /*-
2 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the project nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * $KAME: ip6protosw.h,v 1.25 2001/09/26 06:13:03 keiichi Exp $
30 */
31
32 /*-
33 * Copyright (c) 1982, 1986, 1993
34 * The Regents of the University of California. All rights reserved.
35 *
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
38 * are met:
39 * 1. Redistributions of source code must retain the above copyright
40 * notice, this list of conditions and the following disclaimer.
41 * 2. Redistributions in binary form must reproduce the above copyright
42 * notice, this list of conditions and the following disclaimer in the
43 * documentation and/or other materials provided with the distribution.
44 * 4. Neither the name of the University nor the names of its contributors
45 * may be used to endorse or promote products derived from this software
46 * without specific prior written permission.
47 *
48 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
49 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
50 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
51 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
52 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
53 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
54 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
55 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
56 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
57 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
58 * SUCH DAMAGE.
59 *
60 * @(#)protosw.h 8.1 (Berkeley) 6/2/93
61 * BSDI protosw.h,v 2.3 1996/10/11 16:02:40 pjd Exp
62 * $FreeBSD: src/sys/netinet6/ip6protosw.h,v 1.14 2007/12/10 16:03:39 obrien Exp $
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
73 struct mbuf;
74 struct sockaddr;
75 struct socket;
76 struct domain;
77 struct thread;
78 struct ip6_hdr;
79 struct icmp6_hdr;
80 struct in6_addr;
81 struct pr_usrreqs;
82
83 /*
84 * argument type for the last arg of pr_ctlinput().
85 * should be consulted only with AF_INET6 family.
86 *
87 * IPv6 ICMP IPv6 [exthdrs] finalhdr payload
88 * ^ ^ ^ ^
89 * | | ip6c_ip6 ip6c_off
90 * | ip6c_icmp6
91 * ip6c_m
92 *
93 * ip6c_finaldst usually points to ip6c_ip6->ip6_dst. if the original
94 * (internal) packet carries a routing header, it may point the final
95 * dstination address in the routing header.
96 *
97 * ip6c_src: ip6c_ip6->ip6_src + scope info + flowlabel in ip6c_ip6
98 * (beware of flowlabel, if you try to compare it against others)
99 * ip6c_dst: ip6c_finaldst + scope info
100 */
101 struct ip6ctlparam {
102 struct mbuf *ip6c_m; /* start of mbuf chain */
103 struct icmp6_hdr *ip6c_icmp6; /* icmp6 header of target packet */
104 struct ip6_hdr *ip6c_ip6; /* ip6 header of target packet */
105 int ip6c_off; /* offset of the target proto header */
106 struct sockaddr_in6 *ip6c_src; /* srcaddr w/ additional info */
107 struct sockaddr_in6 *ip6c_dst; /* (final) dstaddr w/ additional info */
108 struct in6_addr *ip6c_finaldst; /* final destination address */
109 void *ip6c_cmdarg; /* control command dependent data */
110 u_int8_t ip6c_nxt; /* final next header field */
111 };
112
113 struct ip6protosw {
114 short pr_type; /* socket type used for */
115 struct domain *pr_domain; /* domain protocol a member of */
116 short pr_protocol; /* protocol number */
117 short pr_flags; /* see below */
118
119 /* protocol-protocol hooks */
120 int (*pr_input) /* input to protocol (from below) */
121 __P((struct mbuf **, int *, int));
122 int (*pr_output) /* output to protocol (from above) */
123 __P((struct mbuf *, ...));
124 void (*pr_ctlinput) /* control input (from below) */
125 __P((int, struct sockaddr *, void *));
126 int (*pr_ctloutput) /* control output (from above) */
127 __P((struct socket *, struct sockopt *));
128
129 /* user-protocol hook */
130 int (*pr_usrreq) /* user request: see list below */
131 __P((struct socket *, int, struct mbuf *,
132 struct mbuf *, struct mbuf *, struct thread *));
133
134 /* utility hooks */
135 void (*pr_init) /* initialization hook */
136 __P((void));
137
138 void (*pr_fasttimo) /* fast timeout (200ms) */
139 __P((void));
140 void (*pr_slowtimo) /* slow timeout (500ms) */
141 __P((void));
142 void (*pr_drain) /* flush any excess space possible */
143 __P((void));
144 struct pr_usrreqs *pr_usrreqs; /* supersedes pr_usrreq() */
145 };
146
147 #ifdef _KERNEL
148 extern struct ip6protosw inet6sw[];
149 #endif
150
151 #endif /* !_NETINET6_IP6PROTOSW_H_ */
152
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