xref: /xnu-11417.140.69/bsd/netinet/ip_encap.h (revision 43a90889846e00bfb5cf1d255cdc0a701a1e05a4)
1 /*
2  * Copyright (c) 2000-2012 Apple Inc. All rights reserved.
3  *
4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5  *
6  * This file contains Original Code and/or Modifications of Original Code
7  * as defined in and that are subject to the Apple Public Source License
8  * Version 2.0 (the 'License'). You may not use this file except in
9  * compliance with the License. The rights granted to you under the License
10  * may not be used to create, or enable the creation or redistribution of,
11  * unlawful or unlicensed copies of an Apple operating system, or to
12  * circumvent, violate, or enable the circumvention or violation of, any
13  * terms of an Apple operating system software license agreement.
14  *
15  * Please obtain a copy of the License at
16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
17  *
18  * The Original Code and all software distributed under the License are
19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23  * Please see the License for the specific language governing rights and
24  * limitations under the License.
25  *
26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27  */
28 /*	$KAME: ip_encap.h,v 1.6 2000/03/06 04:34:21 itojun Exp $	*/
29 
30 /*
31  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
32  * All rights reserved.
33  *
34  * Redistribution and use in source and binary forms, with or without
35  * modification, are permitted provided that the following conditions
36  * are met:
37  * 1. Redistributions of source code must retain the above copyright
38  *    notice, this list of conditions and the following disclaimer.
39  * 2. Redistributions in binary form must reproduce the above copyright
40  *    notice, this list of conditions and the following disclaimer in the
41  *    documentation and/or other materials provided with the distribution.
42  * 3. Neither the name of the project nor the names of its contributors
43  *    may be used to endorse or promote products derived from this software
44  *    without specific prior written permission.
45  *
46  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
47  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
48  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
49  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
50  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
51  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
52  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
53  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
54  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
55  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
56  * SUCH DAMAGE.
57  */
58 
59 #ifndef _NETINET_IP_ENCAP_H_
60 #define _NETINET_IP_ENCAP_H_
61 #ifdef BSD_KERNEL_PRIVATE
62 
63 struct encaptab {
64 	LIST_ENTRY(encaptab) chain;
65 	int af;
66 	int proto;                      /* -1: don't care, I'll check myself */
67 	struct sockaddr_storage src;    /* my addr */
68 	struct sockaddr_storage srcmask;
69 	struct sockaddr_storage dst;    /* remote addr */
70 	struct sockaddr_storage dstmask;
71 	int (*func)(const struct mbuf *, int, int, void *);
72 	const struct protosw *psw;      /* only pr_input will be used */
73 	void *arg;                      /* passed via m->m_pkthdr.aux */
74 };
75 
76 struct protosw;
77 struct ip6protosw;
78 struct domain;
79 
80 __BEGIN_DECLS
81 void    encap4_input(struct mbuf *, int);
82 int     encap6_input(struct mbuf **, int *, int);
83 const struct encaptab *encap_attach(int, int, const struct sockaddr *,
84     const struct sockaddr *, const struct sockaddr *,
85     const struct sockaddr *, const struct protosw *, void *);
86 const struct encaptab *encap_attach_func(int, int,
87     int (*)(const struct mbuf *, int, int, void *),
88     const struct protosw *, void *);
89 int     encap_detach(const struct encaptab *);
90 void    *encap_getarg(struct mbuf *);
91 void    encap_init(void);
92 
93 void encap_register_m_tag(void);
94 
95 __END_DECLS
96 
97 #endif /* BSD_KERNEL_PRIVATE */
98 #endif /*_NETINET_IP_ENCAP_H_*/
99