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authorLi Wei <lw@cn.fujitsu.com>2012-03-05 14:45:17 +0000
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-03-19 08:57:46 -0700
commit94962718da9d6df11a3a30511016707e4e9451dc (patch)
tree884a39b5136192d424aa8b0bd47c65e6b7331f23 /net/ipv6
parent619b6e476fdf85f17d80df72f647f2fb85535339 (diff)
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IPv6: Fix not join all-router mcast group when forwarding set.
[ Upstream commit d6ddef9e641d1229d4ec841dc75ae703171c3e92 ] When forwarding was set and a new net device is register, we need add this device to the all-router mcast group. Signed-off-by: Li Wei <lw@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/ipv6')
-rw-r--r--net/ipv6/addrconf.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 0f335c6..be29337 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -433,6 +433,10 @@ static struct inet6_dev * ipv6_add_dev(struct net_device *dev)
/* Join all-node multicast group */
ipv6_dev_mc_inc(dev, &in6addr_linklocal_allnodes);
+ /* Join all-router multicast group if forwarding is set */
+ if (ndev->cnf.forwarding && dev && (dev->flags & IFF_MULTICAST))
+ ipv6_dev_mc_inc(dev, &in6addr_linklocal_allrouters);
+
return ndev;
}