[ovs-git] [ovn-org/ovn] cc1ae3: northd: By pass IPv6 Router Adv and Router Solicit...

[numansiddique]

  Branch: refs/heads/branch-20.06
  Home:   https://github.com/ovn-org/ovn
  Commit: cc1ae396c6197daf8ac48b4eabe077dc72b65456
      https://github.com/ovn-org/ovn/commit/cc1ae396c6197daf8ac48b4eabe077dc72b65456
  Author: Numan Siddique <numans at ovn.org>
  Date:   2020-06-15 (Mon, 15 Jun 2020)

  Changed paths:
    M northd/ovn-northd.8.xml
    M northd/ovn-northd.c

  Log Message:
  -----------
  northd: By pass IPv6 Router Adv and Router Solicitation packets from ACL stages.

We already add below logical flows to by pass IPv6 Neighbor discovery packets
from in/out ACL stage.

table=6 (ls_in_acl          ), priority=65535, match=(nd), action=(next;)
table=4 (ls_out_acl         ), priority=65535, match=(nd), action=(next;)

This patch also adds nd_rs and nd_ra to these logical flows. Without these
the IPv6 Router Adv packets generated by ovn-controller are dropped if
CMS has configured ACLs.

Reported-by: Jakub Libosvar <jlibosva at redhat.com>
Signed-off-by: Numan Siddique <numans at ovn.org>
Acked-by: Mark Michelson <mmichels at redhat.com>

(cherry-picked from master commit 90e5971018277ab0f383a56f59ffcfe17466a2c6)