diff options
| author | Moni Shoua <monis@voltaire.com> | 2007-10-10 04:43:37 +0200 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2007-10-15 20:20:45 +0200 |
| commit | 200d1713b47200aa478f27e454e3d957264d49be (patch) | |
| tree | cc7a1849ebfac45538075af5819aadfeeba4b331 | |
| parent | IB/ipoib: Bound the net device to the ipoib_neigh structue (diff) | |
| download | linux-200d1713b47200aa478f27e454e3d957264d49be.tar.xz linux-200d1713b47200aa478f27e454e3d957264d49be.zip | |
IB/ipoib: Verify address handle validity on send
When the bonding device senses a carrier loss of its active slave it replaces
that slave with a new one. In between the times when the carrier of an IPoIB
device goes down and ipoib_neigh is destroyed, it is possible that the
bonding driver will send a packet on a new slave that uses an old ipoib_neigh.
This patch detects and prevents this from happenning.
Signed-off-by: Moni Shoua <monis at voltaire.com>
Signed-off-by: Or Gerlitz <ogerlitz at voltaire.com>
Acked-by: Roland Dreier <rdreier@cisco.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
| -rw-r--r-- | drivers/infiniband/ulp/ipoib/ipoib_main.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c index cae026c4ebe8..362610d870e4 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_main.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c @@ -692,9 +692,10 @@ static int ipoib_start_xmit(struct sk_buff *skb, struct net_device *dev) goto out; } } else if (neigh->ah) { - if (unlikely(memcmp(&neigh->dgid.raw, + if (unlikely((memcmp(&neigh->dgid.raw, skb->dst->neighbour->ha + 4, - sizeof(union ib_gid)))) { + sizeof(union ib_gid))) || + (neigh->dev != dev))) { spin_lock(&priv->lock); /* * It's safe to call ipoib_put_ah() inside |