Allowed Address Pairs which is netmask doesn't work

[ZhouHeng]

I have an environment ovn==21.03

I set one port's allowed address pairs is 192.168.1.12/24, I found only ip=192.168.1.12 traffic can pass through, other ip eg:192.168.1.11 can not. if I set allowed address pairs is 192.168.1.0/24, ip=192.168.1.11 traffic can pass through.

I looked at the code of ovn: https://github.com/ovn-org/ovn/blob/98bac97c656c720780fae9b1e4c700eb13c36c29/northd/ovn-northd.c#L4333

I think we should convert it and send it to ovn.

[Akihiro Motoki (amotoki)]

https://review.opendev.org/c/openstack/neutron/+/857012

[OpenStack Infra (hudson-openstack)]

Change abandoned by "Slawek Kaplonski <email address hidden>" on branch: master
Review: https://review.opendev.org/c/openstack/neutron/+/857012
Reason: This review is > 4 weeks without comment, and failed Zuul jobs the last time it was checked. We are abandoning this for now. Feel free to reactivate the review by pressing the restore button and leaving a 'recheck' comment to get fresh test results.

[Liu Xie (liushy)]

Maybe you can fix it by normalizing the address with mask like 'security-groups-normalized-cidr':

https://bugs.launchpad.net/neutron/+bug/1869129