1/*-
 2 * SPDX-License-Identifier: BSD-3-Clause
 3 *
 4 * Copyright (C) 2000 WIDE Project.
 5 * All rights reserved.
 6 *
 7 * Redistribution and use in source and binary forms, with or without
 8 * modification, are permitted provided that the following conditions
 9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the project nor the names of its contributors
16 *    may be used to endorse or promote products derived from this software
17 *    without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 *
31 *	$KAME: scope6_var.h,v 1.4 2000/05/18 15:03:27 jinmei Exp $
32 */
33
34#ifndef _NETINET6_SCOPE6_VAR_H_
35#define _NETINET6_SCOPE6_VAR_H_
36
37#ifdef _KERNEL
38#include <net/vnet.h>
39
40#define	IPV6_ADDR_SCOPES_COUNT	16
41struct scope6_id {
42	/*
43	 * 16 is correspondent to 4bit multicast scope field.
44	 * i.e. from node-local to global with some reserved/unassigned types.
45	 */
46	uint32_t s6id_list[IPV6_ADDR_SCOPES_COUNT];
47};
48
49void	scope6_init(void);
50struct scope6_id *scope6_ifattach(struct ifnet *);
51void	scope6_ifdetach(struct scope6_id *);
52int	scope6_ioctl(u_long cmd, caddr_t data, struct ifnet *);
53void	scope6_setdefault(struct ifnet *);
54int	scope6_get_default(struct scope6_id *);
55u_int32_t scope6_addr2default(struct in6_addr *);
56int	sa6_embedscope(struct sockaddr_in6 *, int);
57int	sa6_recoverscope(struct sockaddr_in6 *);
58int	sa6_checkzone(struct sockaddr_in6 *);
59int	sa6_checkzone_ifp(struct ifnet *, struct sockaddr_in6 *);
60int	in6_setscope(struct in6_addr *, struct ifnet *, u_int32_t *);
61int	in6_clearscope(struct in6_addr *);
62uint16_t in6_getscope(const struct in6_addr *);
63uint32_t in6_getscopezone(const struct ifnet *, int);
64void	in6_splitscope(const struct in6_addr *, struct in6_addr *, uint32_t *);
65struct ifnet* in6_getlinkifnet(uint32_t);
66uint32_t in6_get_unicast_scopeid(const struct in6_addr *, const struct ifnet *);
67void	in6_set_unicast_scopeid(struct in6_addr *, uint32_t);
68#endif /* _KERNEL */
69
70#endif /* _NETINET6_SCOPE6_VAR_H_ */