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, 0 insertions, 5 deletions

diff --git a/sys/netinet6/in6_var.h b/sys/netinet6/in6_var.h
index 05ec3d5..6e2be4f 100644
--- a/sys/netinet6/in6_var.h
+++ b/sys/netinet6/in6_var.h
@@ -611,11 +611,6 @@ void	in6_ifaddloop(struct ifaddr *);
 
 int	in6_is_addr_deprecated __P((struct sockaddr_in6 *));
 struct inpcb;
-int in6_embedscope __P((struct in6_addr *, const struct sockaddr_in6 *,
-	struct inpcb *, struct ifnet **));
-int in6_recoverscope __P((struct sockaddr_in6 *, const struct in6_addr *,
-	struct ifnet *));
-void in6_clearscope __P((struct in6_addr *));
 int in6_src_ioctl __P((u_long, caddr_t));
 #endif /* _KERNEL */