Anti-spoofing stats support was not present currently. Support has been added, and for implementing that all the drops from Anti Spoofing table has been redirected to acl committer table by modifing 4th bit in metatdata. A new flow has been introduced in committer table with this new match criteria and their we are dropping all the drop packets. This new flow will contains all the anti spoof drops and using the cookie, we will be pulling the table details and displaying anti spoof stats

gerrit link for master: https://git.opendaylight.org/gerrit/#/c/70406/

gerrit link for oxygen: https://git.opendaylight.org/gerrit/#/c/70365/