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[IPV6] MCAST: Fix joining all-node multicast group on device initialization.

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Join all-node multicast group after assignment of dev->ip6_ptr
because it must be assigned when ipv6_dev_mc_inc() is called.
This fixes Bug#7817, reported by <gernoth@informatik.uni-erlangen.de>.

Closes: 7817
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
YOSHIFUJI Hideaki
2007-01-14 21:48:40 -08:00
committed by David S. Miller
parent e0e8f1c822
commit d88ae4cc97
2 changed files with 6 additions and 6 deletions
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6
net/ipv6/addrconf.c
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@ -341,6 +341,7 @@ void in6_dev_finish_destroy(struct inet6_dev *idev)
static struct inet6_dev * ipv6_add_dev(struct net_device *dev)
{
struct inet6_dev *ndev;
struct in6_addr maddr;
ASSERT_RTNL();
@ -425,6 +426,11 @@ static struct inet6_dev * ipv6_add_dev(struct net_device *dev)
#endif
/* protected by rtnl_lock */
rcu_assign_pointer(dev->ip6_ptr, ndev);
/* Join all-node multicast group */
ipv6_addr_all_nodes(&maddr);
ipv6_dev_mc_inc(dev, &maddr);
return ndev;
}