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, 2 deletions

diff --git a/sys/netinet6/nd6_rtr.c b/sys/netinet6/nd6_rtr.c
index e0bc008..1b0792d 100644
--- a/sys/netinet6/nd6_rtr.c
+++ b/sys/netinet6/nd6_rtr.c
@@ -1875,8 +1875,6 @@ rt6_flush(gateway, ifp)
 		splx(s);
 		return;
 	}
-	/* XXX: hack for KAME's link-local address kludge */
-	gateway->s6_addr16[1] = htons(ifp->if_index);
 
 	RADIX_NODE_HEAD_LOCK(rnh);
 	rnh->rnh_walktree(rnh, rt6_deleteroute, (void *)gateway);