ipv6: stop multicast forwarding to process interface scoped addresses
authorHannes Frederic Sowa <hannes@stressinduktion.org>
Fri, 8 Mar 2013 02:07:23 +0000 (02:07 +0000)
committerDavid S. Miller <davem@davemloft.net>
Fri, 8 Mar 2013 17:28:20 +0000 (12:28 -0500)
v2:
a) used struct ipv6_addr_props

v3:
a) reverted changes for ipv6_addr_props

v4:
a) do not use __ipv6_addr_needs_scope_id

Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/ipv6/ip6_input.c

index b1876e5..e33fe0a 100644 (file)
@@ -281,7 +281,8 @@ int ip6_mc_input(struct sk_buff *skb)
         *      IPv6 multicast router mode is now supported ;)
         */
        if (dev_net(skb->dev)->ipv6.devconf_all->mc_forwarding &&
-           !(ipv6_addr_type(&hdr->daddr) & IPV6_ADDR_LINKLOCAL) &&
+           !(ipv6_addr_type(&hdr->daddr) &
+             (IPV6_ADDR_LOOPBACK|IPV6_ADDR_LINKLOCAL)) &&
            likely(!(IP6CB(skb)->flags & IP6SKB_FORWARDED))) {
                /*
                 * Okay, we try to forward - split and duplicate