1 /* $FreeBSD$ */ 2 /* $KAME: ip_encap.h,v 1.7 2000/03/25 07:23:37 sumikawa Exp $ */ 3 4 /*- 5 * SPDX-License-Identifier: BSD-3-Clause 6 * 7 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 8 * All rights reserved. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 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. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 35 #ifndef _NETINET_IP_ENCAP_H_ 36 #define _NETINET_IP_ENCAP_H_ 37 38 #ifdef _KERNEL 39 40 struct encaptab { 41 LIST_ENTRY(encaptab) chain; 42 int af; 43 int proto; /* -1: don't care, I'll check myself */ 44 struct sockaddr_storage src; /* my addr */ 45 struct sockaddr_storage srcmask; 46 struct sockaddr_storage dst; /* remote addr */ 47 struct sockaddr_storage dstmask; 48 int (*func)(const struct mbuf *, int, int, void *); 49 const struct protosw *psw; /* only pr_input will be used */ 50 void *arg; /* passed via m->m_pkthdr.aux */ 51 }; 52 53 void encap_init(void); 54 int encap4_input(struct mbuf **, int *, int); 55 int encap6_input(struct mbuf **, int *, int); 56 const struct encaptab *encap_attach(int, int, const struct sockaddr *, 57 const struct sockaddr *, const struct sockaddr *, 58 const struct sockaddr *, const struct protosw *, void *); 59 const struct encaptab *encap_attach_func(int, int, 60 int (*)(const struct mbuf *, int, int, void *), 61 const struct protosw *, void *); 62 int encap_detach(const struct encaptab *); 63 void *encap_getarg(struct mbuf *); 64 #endif 65 66 #endif /*_NETINET_IP_ENCAP_H_*/ 67