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Commit ddf64354 authored by Hannes Frederic Sowa's avatar Hannes Frederic Sowa Committed by David S. Miller
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ipv6: stop multicast forwarding to process interface scoped addresses 



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: default avatarHannes Frederic Sowa <hannes@stressinduktion.org>
Acked-by: default avatarYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 3bc1b1ad

net/ipv6/ip6_input.c

+2 −1
Original line number Diff line number Diff line
@@ -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