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NetBSD/sys/netinet6/scope6_var.h

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Better support of IPv6 scoped addresses. - 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. - and, while there, don't try to remove the ff02::/32 interface route entry in in6_ifdetach() as it's already gone. This also includes some level of support for the standard source address selection algorithm defined in RFC3484, which will be completed on in the future. From the KAME project via JINMEI Tatuya. Approved by core@.
2006-01-21 03:15:35 +03:00
/* $FreeBSD: src/sys/netinet6/scope6_var.h,v 1.4 2005/01/07 02:30:35 imp Exp $ */
/* $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 interface-local to global with some
* reserved/unassigned types.
*/
uint32_t s6id_list[16];
};
void scope6_init(void);
struct scope6_id *scope6_ifattach(struct ifnet *);
void scope6_ifdetach(struct scope6_id *);
Replace rote sockaddr_in6 initializations (memset(), set sa6_family, sa6_len, and sa6_add) with sockaddr_in6_init() calls. De-__P(). Constify. KNF. Shorten a staircase. Change bcmp() to memcmp(). Extract subroutine in6_setzoneid() from in6_setscope(), for re-use soon.
2007-10-24 10:37:20 +04:00
int scope6_set(struct ifnet *, const struct scope6_id *);
int scope6_get(const struct ifnet *, struct scope6_id *);
Better support of IPv6 scoped addresses. - 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. - and, while there, don't try to remove the ff02::/32 interface route entry in in6_ifdetach() as it's already gone. This also includes some level of support for the standard source address selection algorithm defined in RFC3484, which will be completed on in the future. From the KAME project via JINMEI Tatuya. Approved by core@.
2006-01-21 03:15:35 +03:00
void scope6_setdefault(struct ifnet *);
int scope6_get_default(struct scope6_id *);
uint32_t scope6_in6_addrscope(struct in6_addr *);
Replace rote sockaddr_in6 initializations (memset(), set sa6_family, sa6_len, and sa6_add) with sockaddr_in6_init() calls. De-__P(). Constify. KNF. Shorten a staircase. Change bcmp() to memcmp(). Extract subroutine in6_setzoneid() from in6_setscope(), for re-use soon.
2007-10-24 10:37:20 +04:00
uint32_t scope6_addr2default(const struct in6_addr *);
Better support of IPv6 scoped addresses. - 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. - and, while there, don't try to remove the ff02::/32 interface route entry in in6_ifdetach() as it's already gone. This also includes some level of support for the standard source address selection algorithm defined in RFC3484, which will be completed on in the future. From the KAME project via JINMEI Tatuya. Approved by core@.
2006-01-21 03:15:35 +03:00
int sa6_embedscope(struct sockaddr_in6 *, int);
int sa6_recoverscope(struct sockaddr_in6 *);
Replace rote sockaddr_in6 initializations (memset(), set sa6_family, sa6_len, and sa6_add) with sockaddr_in6_init() calls. De-__P(). Constify. KNF. Shorten a staircase. Change bcmp() to memcmp(). Extract subroutine in6_setzoneid() from in6_setscope(), for re-use soon.
2007-10-24 10:37:20 +04:00
int in6_setzoneid(struct in6_addr *, uint32_t);
int in6_setscope(struct in6_addr *, const struct ifnet *, u_int32_t *);
Better support of IPv6 scoped addresses. - 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. - and, while there, don't try to remove the ff02::/32 interface route entry in in6_ifdetach() as it's already gone. This also includes some level of support for the standard source address selection algorithm defined in RFC3484, which will be completed on in the future. From the KAME project via JINMEI Tatuya. Approved by core@.
2006-01-21 03:15:35 +03:00
int in6_clearscope(struct in6_addr *);
#endif /* _KERNEL */
#endif /* _NETINET6_SCOPE6_VAR_H_ */