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freebsd
GitHub Repository: freebsd/freebsd-src
 Path: blob/main/sys/netinet6/scope6_var.h
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/*-

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 * SPDX-License-Identifier: BSD-3-Clause

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 *

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 * Copyright (C) 2000 WIDE Project.

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 * All rights reserved.

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 *

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 * Redistribution and use in source and binary forms, with or without

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 * modification, are permitted provided that the following conditions

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 * are met:

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 * 1. Redistributions of source code must retain the above copyright

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 *    notice, this list of conditions and the following disclaimer.

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 * 2. Redistributions in binary form must reproduce the above copyright

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 *    notice, this list of conditions and the following disclaimer in the

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 *    documentation and/or other materials provided with the distribution.

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 * 3. Neither the name of the project nor the names of its contributors

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 *    may be used to endorse or promote products derived from this software

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 *    without specific prior written permission.

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 *

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 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND

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 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

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 * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE

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 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

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 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

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 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

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 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

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 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY

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 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

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 * SUCH DAMAGE.

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 *

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 *	$KAME: scope6_var.h,v 1.4 2000/05/18 15:03:27 jinmei Exp $

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 */

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#ifndef _NETINET6_SCOPE6_VAR_H_

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#define _NETINET6_SCOPE6_VAR_H_

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#ifdef _KERNEL

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#include <net/vnet.h>

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#define	IPV6_ADDR_SCOPES_COUNT	16

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struct scope6_id {

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	/*

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	 * 16 is correspondent to 4bit multicast scope field.

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	 * i.e. from node-local to global with some reserved/unassigned types.

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	 */

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	uint32_t s6id_list[IPV6_ADDR_SCOPES_COUNT];

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};

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void	scope6_init(void);

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struct scope6_id *scope6_ifattach(struct ifnet *);

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void	scope6_ifdetach(struct scope6_id *);

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int	scope6_ioctl(u_long cmd, caddr_t data, struct ifnet *);

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void	scope6_setdefault(struct ifnet *);

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int	scope6_get_default(struct scope6_id *);

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u_int32_t scope6_addr2default(struct in6_addr *);

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int	sa6_embedscope(struct sockaddr_in6 *, int);

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int	sa6_recoverscope(struct sockaddr_in6 *);

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int	sa6_checkzone(struct sockaddr_in6 *);

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int	sa6_checkzone_ifp(struct ifnet *, struct sockaddr_in6 *);

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int	in6_setscope(struct in6_addr *, struct ifnet *, u_int32_t *);

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int	in6_clearscope(struct in6_addr *);

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uint16_t in6_getscope(const struct in6_addr *);

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uint32_t in6_getscopezone(const struct ifnet *, int);

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void	in6_splitscope(const struct in6_addr *, struct in6_addr *, uint32_t *);

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struct ifnet* in6_getlinkifnet(uint32_t);

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uint32_t in6_get_unicast_scopeid(const struct in6_addr *, const struct ifnet *);

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void	in6_set_unicast_scopeid(struct in6_addr *, uint32_t);

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#endif /* _KERNEL */

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#endif /* _NETINET6_SCOPE6_VAR_H_ */

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