xref: /freebsd/sys/netinet6/scope6_var.h (revision ddd5b8e9b4d8957fce018c520657cdfa4ecffad3)
1 /*-
2  * Copyright (C) 2000 WIDE Project.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. Neither the name of the project nor the names of its contributors
14  *    may be used to endorse or promote products derived from this software
15  *    without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  *
29  *	$KAME: scope6_var.h,v 1.4 2000/05/18 15:03:27 jinmei Exp $
30  * $FreeBSD$
31  */
32 
33 #ifndef _NETINET6_SCOPE6_VAR_H_
34 #define _NETINET6_SCOPE6_VAR_H_
35 
36 #ifdef _KERNEL
37 #include <net/vnet.h>
38 
39 struct scope6_id {
40 	/*
41 	 * 16 is correspondent to 4bit multicast scope field.
42 	 * i.e. from node-local to global with some reserved/unassigned types.
43 	 */
44 	u_int32_t s6id_list[16];
45 };
46 
47 VNET_DECLARE(int, deembed_scopeid);
48 #define V_deembed_scopeid       VNET(deembed_scopeid)
49 
50 void	scope6_init(void);
51 struct scope6_id *scope6_ifattach(struct ifnet *);
52 void	scope6_ifdetach(struct scope6_id *);
53 int	scope6_set(struct ifnet *, struct scope6_id *);
54 int	scope6_get(struct ifnet *, struct scope6_id *);
55 void	scope6_setdefault(struct ifnet *);
56 int	scope6_get_default(struct scope6_id *);
57 u_int32_t scope6_addr2default(struct in6_addr *);
58 int	sa6_embedscope(struct sockaddr_in6 *, int);
59 int	sa6_recoverscope(struct sockaddr_in6 *);
60 int	in6_setscope(struct in6_addr *, struct ifnet *, u_int32_t *);
61 int	in6_clearscope(struct in6_addr *);
62 uint16_t in6_getscope(struct in6_addr *);
63 #endif /* _KERNEL */
64 
65 #endif /* _NETINET6_SCOPE6_VAR_H_ */
66