diff options
| author | Hannes Frederic Sowa <hannes@stressinduktion.org> | 2013-03-08 02:07:23 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-03-20 12:58:54 -0700 |
| commit | 2f401a6d4d0bebbb5e80711305d1f4904f192cee (patch) | |
| tree | c9cf1241b9c558dc6f101b872abb34b9081abe98 | |
| parent | b8268476626db0dac71fad35da5532e32f6a879e (diff) | |
| download | lwn-2f401a6d4d0bebbb5e80711305d1f4904f192cee.tar.gz lwn-2f401a6d4d0bebbb5e80711305d1f4904f192cee.zip | |
ipv6: stop multicast forwarding to process interface scoped addresses
[ Upstream commit ddf64354af4a702ee0b85d0a285ba74c7278a460 ]
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | net/ipv6/ip6_input.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/ipv6/ip6_input.c b/net/ipv6/ip6_input.c index 027c7ff6f1e5..e2a08ae54ca9 100644 --- a/net/ipv6/ip6_input.c +++ b/net/ipv6/ip6_input.c @@ -257,7 +257,8 @@ 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 |