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scope6_var.h revision 1.1 
      1 /*	$FreeBSD: src/sys/netinet6/scope6_var.h,v 1.4 2005/01/07 02:30:35 imp Exp $	*/
      2 /*	$KAME: scope6_var.h,v 1.4 2000/05/18 15:03:27 jinmei Exp $	*/
      3 
      4 /*-
      5  * Copyright (C) 2000 WIDE Project.
      6  * All rights reserved.
      7  *
      8  * Redistribution and use in source and binary forms, with or without
      9  * modification, are permitted provided that the following conditions
     10  * are met:
     11  * 1. Redistributions of source code must retain the above copyright
     12  *    notice, this list of conditions and the following disclaimer.
     13  * 2. Redistributions in binary form must reproduce the above copyright
     14  *    notice, this list of conditions and the following disclaimer in the
     15  *    documentation and/or other materials provided with the distribution.
     16  * 3. Neither the name of the project nor the names of its contributors
     17  *    may be used to endorse or promote products derived from this software
     18  *    without specific prior written permission.
     19  *
     20  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
     21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
     24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     30  * SUCH DAMAGE.
     31  */
     32 
     33 #ifndef _NETINET6_SCOPE6_VAR_H_
     34 #define _NETINET6_SCOPE6_VAR_H_
     35 
     36 #ifdef _KERNEL
     37 struct scope6_id {
     38 	/*
     39 	 * 16 is correspondent to 4bit multicast scope field.
     40 	 * i.e. from interface-local to global with some
     41 	 * reserved/unassigned types.
     42 	 */
     43 	uint32_t s6id_list[16];
     44 };
     45 
     46 void	scope6_init(void);
     47 struct scope6_id *scope6_ifattach(struct ifnet *);
     48 void	scope6_ifdetach(struct scope6_id *);
     49 int	scope6_set(struct ifnet *, struct scope6_id *);
     50 int	scope6_get(struct ifnet *, struct scope6_id *);
     51 void	scope6_setdefault(struct ifnet *);
     52 int	scope6_get_default(struct scope6_id *);
     53 uint32_t scope6_in6_addrscope(struct in6_addr *);
     54 uint32_t scope6_addr2default(struct in6_addr *);
     55 int	sa6_embedscope(struct sockaddr_in6 *, int);
     56 int	sa6_recoverscope(struct sockaddr_in6 *);
     57 int	in6_setscope(struct in6_addr *, struct ifnet *, u_int32_t *);
     58 int	in6_clearscope(struct in6_addr *);
     59 #endif /* _KERNEL */
     60 
     61 #endif /* _NETINET6_SCOPE6_VAR_H_ */
     62