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openvswitch: Fix push/pop ethernet validation 

When there are both pop and push ethernet header actions among the
actions to be applied to a packet, an unexpected EINVAL (Invalid
argument) error is obtained. This is due to mac_proto not being reset
correctly when those actions are validated.

Reported-at:
https://mail.openvswitch.org/pipermail/ovs-discuss/2018-October/047554.html
Fixes: 91820da6ae ("openvswitch: add Ethernet push and pop actions")
Signed-off-by: Jaime Caamaño Ruiz <jcaamano@suse.com>
Tested-by: Greg Rose <gvrose8192@gmail.com>
Reviewed-by: Greg Rose <gvrose8192@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jaime Caamaño Ruiz 2018-10-31 18:52:03 +01:00 committed by David S. Miller
parent 30549aab14
commit 46ebe2834b
1 changed files with 2 additions and 2 deletions
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4
net/openvswitch/flow_netlink.c
View File

@ -3030,7 +3030,7 @@ static int __ovs_nla_copy_actions(struct net *net, const struct nlattr *attr,
* is already present */
if (mac_proto != MAC_PROTO_NONE)
return -EINVAL;
mac_proto = MAC_PROTO_NONE;
mac_proto = MAC_PROTO_ETHERNET;
break;
case OVS_ACTION_ATTR_POP_ETH:
@ -3038,7 +3038,7 @@ static int __ovs_nla_copy_actions(struct net *net, const struct nlattr *attr,
return -EINVAL;
if (vlan_tci & htons(VLAN_TAG_PRESENT))
return -EINVAL;
mac_proto = MAC_PROTO_ETHERNET;
mac_proto = MAC_PROTO_NONE;
break;
case OVS_ACTION_ATTR_PUSH_NSH: