lib/tc: Support optional tunnel id

Currently the TC tunnel_key action is always
initialized with the given tunnel id value. However,
some tunneling protocols define the tunnel id as an optional field.

This patch initializes the id field of tunnel_key:set and tunnel_key:unset
only if a value is provided.

In the case that a tunnel key value is not provided by the user
the key flag will not be set.

Signed-off-by: Adi Nissim <adin@mellanox.com>
Acked-by: Paul Blakey <paulb@mellanox.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/lib/tc.h b/lib/tc.h
index 6c909df21..3113206de 100644
--- a/lib/tc.h
+++ b/lib/tc.h
@@ -149,6 +149,7 @@ struct tc_action {
         } vlan;
 
         struct {
+            bool id_present;
             ovs_be64 id;
             ovs_be16 tp_src;
             ovs_be16 tp_dst;