1/*
2 * Copyright (c) 2009-2015 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
29/*
30 * Copyright (C) 2000 WIDE Project.
31 * All rights reserved.
32 *
33 * Redistribution and use in source and binary forms, with or without
34 * modification, are permitted provided that the following conditions
35 * are met:
36 * 1. Redistributions of source code must retain the above copyright
37 * notice, this list of conditions and the following disclaimer.
38 * 2. Redistributions in binary form must reproduce the above copyright
39 * notice, this list of conditions and the following disclaimer in the
40 * documentation and/or other materials provided with the distribution.
41 * 3. Neither the name of the project nor the names of its contributors
42 * may be used to endorse or promote products derived from this software
43 * without specific prior written permission.
44 *
45 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
46 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
47 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
48 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
49 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
50 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
51 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
52 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
53 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
54 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
55 * SUCH DAMAGE.
56 */
57
58#ifndef _NETINET6_SCOPE6_VAR_H_
59#define _NETINET6_SCOPE6_VAR_H_
60#include <sys/appleapiopts.h>
61
62/*
63 * 16 is correspondent to 4bit multicast scope field.
64 * i.e. from node-local to global with some reserved/unassigned types.
65 */
66#define SCOPE6_ID_MAX 16
67
68#ifdef BSD_KERNEL_PRIVATE
69
70struct scope6_id {
71 u_int32_t s6id_list[SCOPE6_ID_MAX];
72};
73
74extern int in6_embedded_scope;
75extern int in6_embedded_scope_debug;
76
77#define IN6_NULL_IF_EMBEDDED_SCOPE(_var) (in6_embedded_scope ? NULL : (_var))
78
79extern void scope6_ifattach(struct ifnet *);
80extern void scope6_setdefault(struct ifnet *);
81extern u_int32_t scope6_in6_addrscope(struct in6_addr *);
82extern u_int32_t scope6_addr2default(struct in6_addr *);
83extern int sa6_embedscope(struct sockaddr_in6 *, int, uint32_t *);
84extern int sa6_recoverscope(struct sockaddr_in6 *, boolean_t);
85extern int in6_setscope(struct in6_addr *, struct ifnet *, u_int32_t *);
86extern int in6_clearscope(struct in6_addr *);
87extern void rtkey_to_sa6(struct rtentry *, struct sockaddr_in6 *);
88extern void rtgw_to_sa6(struct rtentry *, struct sockaddr_in6 *);
89extern bool in6_are_addr_equal_scoped(const struct in6_addr *, const struct in6_addr *,
90 uint32_t, uint32_t);
91extern bool in6_are_masked_addr_scope_equal(const struct in6_addr *, uint32_t, const struct in6_addr *, uint32_t, const struct in6_addr *);
92
93extern void in6_verify_ifscope(const struct in6_addr *, uint32_t);
94
95#endif /* BSD_KERNEL_PRIVATE */
96#endif /* _NETINET6_SCOPE6_VAR_H_ */
97