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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
View File

@ -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;
}

6
net/ipv6/mcast.c
View File

@ -2258,8 +2258,6 @@ void ipv6_mc_up(struct inet6_dev *idev)
void ipv6_mc_init_dev(struct inet6_dev *idev)
{
struct in6_addr maddr;
write_lock_bh(&idev->lock);
rwlock_init(&idev->mc_lock);
idev->mc_gq_running = 0;
@ -2275,10 +2273,6 @@ void ipv6_mc_init_dev(struct inet6_dev *idev)
idev->mc_maxdelay = IGMP6_UNSOLICITED_IVAL;
idev->mc_v1_seen = 0;
write_unlock_bh(&idev->lock);
/* Add all-nodes address. */
ipv6_addr_all_nodes(&maddr);
ipv6_dev_mc_inc(idev->dev, &maddr);
}
/*