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

1 files changed, 1 insertions, 0 deletions

diff --git a/sys/netinet/icmp6.h b/sys/netinet/icmp6.h
index 4dee079..b35ec09 100644
--- a/sys/netinet/icmp6.h
+++ b/sys/netinet/icmp6.h
@@ -632,6 +632,7 @@ struct	in6_multi;
 void	icmp6_init(void);
 void	icmp6_paramerror(struct mbuf *, int);
 void	icmp6_error(struct mbuf *, int, int, int);
+void	icmp6_error2(struct mbuf *, int, int, int, struct ifnet *);
 int	icmp6_input(struct mbuf **, int *, int);
 void	icmp6_fasttimo(void);
 void	icmp6_reflect(struct mbuf *, size_t);