freebsd-dev/sys/netinet6/scope6_var.h
Hajimu UMEMOTO a1f7e5f8ee scope cleanup. with this change
- most of the kernel code will not care about the actual encoding of
  scope zone IDs and won't touch "s6_addr16[1]" directly.
- similarly, most of the kernel code will not care about link-local
  scoped addresses as a special case.
- scope boundary check will be stricter.  For example, the current
  *BSD code allows a packet with src=::1 and dst=(some global IPv6
  address) to be sent outside of the node, if the application do:
    s = socket(AF_INET6);
    bind(s, "::1");
    sendto(s, some_global_IPv6_addr);
  This is clearly wrong, since ::1 is only meaningful within a single
  node, but the current implementation of the *BSD kernel cannot
  reject this attempt.

Submitted by:	JINMEI Tatuya <jinmei__at__isl.rdc.toshiba.co.jp>
Obtained from:	KAME
2005-07-25 12:31:43 +00:00

61 lines
2.6 KiB
C

/* $FreeBSD$ */
/* $KAME: scope6_var.h,v 1.4 2000/05/18 15:03:27 jinmei Exp $ */
/*-
* Copyright (C) 2000 WIDE Project.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the project nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _NETINET6_SCOPE6_VAR_H_
#define _NETINET6_SCOPE6_VAR_H_
#ifdef _KERNEL
struct scope6_id {
/*
* 16 is correspondent to 4bit multicast scope field.
* i.e. from node-local to global with some reserved/unassigned types.
*/
u_int32_t s6id_list[16];
};
void scope6_init __P((void));
struct scope6_id *scope6_ifattach __P((struct ifnet *));
void scope6_ifdetach __P((struct scope6_id *));
int scope6_set __P((struct ifnet *, struct scope6_id *));
int scope6_get __P((struct ifnet *, struct scope6_id *));
void scope6_setdefault __P((struct ifnet *));
int scope6_get_default __P((struct scope6_id *));
u_int32_t scope6_in6_addrscope __P((struct in6_addr *));
u_int32_t scope6_addr2default __P((struct in6_addr *));
int sa6_embedscope __P((struct sockaddr_in6 *, int));
int sa6_recoverscope __P((struct sockaddr_in6 *));
int in6_setscope __P((struct in6_addr *, struct ifnet *, u_int32_t *));
int in6_clearscope __P((struct in6_addr *));
#endif /* _KERNEL */
#endif /* _NETINET6_SCOPE6_VAR_H_ */