1 /* $FreeBSD: src/sys/netinet/ip_encap.h,v 1.4 2005/01/07 01:45:44 imp Exp $ */
2 /* $KAME: ip_encap.h,v 1.7 2000/03/25 07:23:37 sumikawa 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 #ifndef _NETINET_IP_ENCAP_H_
34 #define _NETINET_IP_ENCAP_H_
35
36 #ifdef _KERNEL
37
38 struct encaptab {
39 LIST_ENTRY(encaptab) chain;
40 int af;
41 int proto; /* -1: don't care, I'll check myself */
42 struct sockaddr_storage src; /* my addr */
43 struct sockaddr_storage srcmask;
44 struct sockaddr_storage dst; /* remote addr */
45 struct sockaddr_storage dstmask;
46 int (*func)(const struct mbuf *, int, int, void *);
47 const struct protosw *psw; /* only pr_input will be used */
48 void *arg; /* passed via m->m_pkthdr.aux */
49 };
50
51 void encap_init(void);
52 void encap4_input(struct mbuf *, int);
53 int encap6_input(struct mbuf **, int *, int);
54 const struct encaptab *encap_attach(int, int, const struct sockaddr *,
55 const struct sockaddr *, const struct sockaddr *,
56 const struct sockaddr *, const struct protosw *, void *);
57 const struct encaptab *encap_attach_func(int, int,
58 int (*)(const struct mbuf *, int, int, void *),
59 const struct protosw *, void *);
60 int encap_detach(const struct encaptab *);
61 void *encap_getarg(struct mbuf *);
62 #endif
63
64 #endif /*_NETINET_IP_ENCAP_H_*/
65
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