On 11/2/2018 4:45 AM, Jaime Caamaño Ruiz wrote:
Upstream commit:
     commit 46ebe2834ba5b541f28ee72e556a3fed42c47570
     Author: Jaime Caamaño Ruiz <[email protected]>
     Date:   Wed Oct 31 18:52:03 2018 +0100

     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: 91820da6ae85 ("openvswitch: add Ethernet push and pop actions")
     Signed-off-by: Jaime Caamaño Ruiz <[email protected]>

Reported-at:
https://mail.openvswitch.org/pipermail/ovs-discuss/2018-October/047554.html
Fixes: 6fcecb85ab ("datapath: add Ethernet push and pop actions")
Signed-off-by: Jaime Caamaño Ruiz <[email protected]>
---
  datapath/flow_netlink.c | 4 ++--
  1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/datapath/flow_netlink.c b/datapath/flow_netlink.c
index c3f1baa05..ee0c18422 100644
--- a/datapath/flow_netlink.c
+++ b/datapath/flow_netlink.c
@@ -2998,7 +2998,7 @@ 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:
@@ -3006,7 +3006,7 @@ 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:

Thanks for all your work on this Jaime!

Tested-by: Greg Rose <[email protected]>
Reviewed-by: Greg Rose <[email protected]>

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