bsd/netinet6/scope6_var.h

   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
  70 struct scope6_id {
  71         u_int32_t s6id_list[SCOPE6_ID_MAX];
  72 };
  73
  74 extern void scope6_init(lck_grp_t *, lck_attr_t *);
  75 extern void scope6_ifattach(struct ifnet *);
  76 extern void scope6_setdefault(struct ifnet *);
  77 extern u_int32_t scope6_in6_addrscope(struct in6_addr *);
  78 extern u_int32_t scope6_addr2default(struct in6_addr *);
  79 extern int sa6_embedscope (struct sockaddr_in6 *, int);
  80 extern int sa6_recoverscope (struct sockaddr_in6 *, boolean_t);
  81 extern int in6_setscope (struct in6_addr *, struct ifnet *, u_int32_t *);
  82 extern int in6_clearscope (struct in6_addr *);
  83 extern void rtkey_to_sa6(struct rtentry *, struct sockaddr_in6 *);
  84 extern void rtgw_to_sa6(struct rtentry *, struct sockaddr_in6 *);
  85 #endif /* BSD_KERNEL_PRIVATE */
  86 #endif /* _NETINET6_SCOPE6_VAR_H_ */