1 /* $KAME: ip_encap.h,v 1.7 2000/03/25 07:23:37 sumikawa Exp $ */
4 * SPDX-License-Identifier: BSD-3-Clause
6 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
7 * Copyright (c) 2018 Andrey V. Elsukov <ae@FreeBSD.org>
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17 * documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of the project nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
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35 #ifndef _NETINET_IP_ENCAP_H_
36 #define _NETINET_IP_ENCAP_H_
40 int encap4_input(struct mbuf **, int *, int);
41 int encap6_input(struct mbuf **, int *, int);
43 typedef int (*encap_lookup_t)(const struct mbuf *, int, int, void **);
44 typedef int (*encap_check_t)(const struct mbuf *, int, int, void *);
45 typedef int (*encap_input_t)(struct mbuf *, int, int, void *);
46 typedef void (*encap_srcaddr_t)(void *, const struct sockaddr *, int);
49 int proto; /* protocol */
50 int min_length; /* minimum packet length */
51 int max_hdrsize; /* maximum header size */
52 int exact_match; /* a packet is exactly matched */
53 #define ENCAP_DRV_LOOKUP 0x7fffffff
55 encap_lookup_t lookup;
65 const struct encaptab *ip_encap_attach(const struct encap_config *,
66 void *arg, int mflags);
67 const struct encaptab *ip6_encap_attach(const struct encap_config *,
68 void *arg, int mflags);
70 const struct srcaddrtab *ip_encap_register_srcaddr(encap_srcaddr_t,
71 void *arg, int mflags);
72 const struct srcaddrtab *ip6_encap_register_srcaddr(encap_srcaddr_t,
73 void *arg, int mflags);
75 int ip_encap_unregister_srcaddr(const struct srcaddrtab *);
76 int ip6_encap_unregister_srcaddr(const struct srcaddrtab *);
77 int ip_encap_detach(const struct encaptab *);
78 int ip6_encap_detach(const struct encaptab *);
81 #endif /*_NETINET_IP_ENCAP_H_*/