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| author | Jesse Gross <jesse@nicira.com> | 2013-08-14 15:50:36 -0700 |
|---|---|---|
| committer | Jesse Gross <jesse@nicira.com> | 2013-08-14 15:50:36 -0700 |
| commit | 36bf5cc66d60868bcc10aff209defed5a7b71c1d (patch) | |
| tree | 1754ed6ef77bf8cb67f653339ca8a7705307b760 /net/openvswitch/actions.c | |
| parent | 42415c90ceaf50c792e29823e359463bc6d4ee05 (diff) | |
| download | op-kernel-dev-36bf5cc66d60868bcc10aff209defed5a7b71c1d.zip op-kernel-dev-36bf5cc66d60868bcc10aff209defed5a7b71c1d.tar.gz | |
openvswitch: Reset tunnel key between input and output.
It doesn't make sense to output a tunnel packet using the same
parameters that it was received with since that will generally
just result in the packet going back to us. As a result, userspace
assumes that the tunnel key is cleared when transitioning through
the switch. In the majority of cases this doesn't matter since a
packet is either going to a tunnel port (in which the key is
overwritten with new values) or to a non-tunnel port (in which
case the key is ignored). However, it's theoreticaly possible that
userspace could rely on the documented behavior, so this corrects
it.
Signed-off-by: Jesse Gross <jesse@nicira.com>
Diffstat (limited to 'net/openvswitch/actions.c')
| -rw-r--r-- | net/openvswitch/actions.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/openvswitch/actions.c b/net/openvswitch/actions.c index 22c5f39..ab101f7 100644 --- a/net/openvswitch/actions.c +++ b/net/openvswitch/actions.c @@ -535,6 +535,7 @@ int ovs_execute_actions(struct datapath *dp, struct sk_buff *skb) { struct sw_flow_actions *acts = rcu_dereference(OVS_CB(skb)->flow->sf_acts); + OVS_CB(skb)->tun_key = NULL; return do_execute_actions(dp, skb, acts->actions, acts->actions_len, false); } |
