[OVS] "permitted_ethertypes" should be validated and filtered during the OVS agent initialization

[Rodolfo Alonso]

"permitted_ethertypes" is a comma separated list of ethertypes to be permitted, in hexadecimal. That means all values should start with a "0x".

In case that any of these values does not start with "0x", any time the port rules are refreshed, a new warning message is printed (in both directions).

Instead of this, this bug proposed to parse the "permitted_ethertypes" list at the initialization of the OVS agent, print any possible value error just once and store the valid values.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/c/openstack/neutron/+/876997

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/c/openstack/neutron/+/876997
Committed: https://opendev.org/openstack/neutron/commit/5c98d9e8d1bc66b0e5010e7d9abbe61cfcc7bae5
Submitter: "Zuul (22348)"
Branch: master

commit 5c98d9e8d1bc66b0e5010e7d9abbe61cfcc7bae5
Author: Rodolfo Alonso Hernandez <email address hidden>
Date: Wed Mar 8 17:14:19 2023 +0100

    [OVS] Parse the "permitted_ethertypes" at the FW initialization

    Parse and validate the "permitted_ethertypes" configuration variable at
    the OVS firewall initialization. Any error in the configuration will be
    logged only once.

    Closes-Bug: #2009728
    Change-Id: Ib5439791d7bc0a8457bb10f887b1077fd6438619

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/neutron 23.0.0.0b2 development milestone.