[ovs-git] [ovn-org/ovn] 4ce955: Introduce DHCPDECLINE msg support to OVN DHCP server

[Lorenzo Bianconi]

  Branch: refs/heads/master
  Home:   https://github.com/ovn-org/ovn
  Commit: 4ce955626d5ce2e37456e79c52e302988b0669c8
      https://github.com/ovn-org/ovn/commit/4ce955626d5ce2e37456e79c52e302988b0669c8
  Author: Lorenzo Bianconi <lorenzo.bianconi at redhat.com>
  Date:   2020-09-04 (Fri, 04 Sep 2020)

  Changed paths:
    M controller/pinctrl.c
    M lib/ovn-l7.h
    M tests/ovn.at

  Log Message:
  -----------
  Introduce DHCPDECLINE msg support to OVN DHCP server

According to the RFC2131 (https://tools.ietf.org/html/rfc2131), if the
server server receives a DHCPDECLINE message, the client has discovered
through some other means that the suggested network address is already
in use. The server SHOULD notify the local system administrator of a
possible configuration problem.

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi at redhat.com>
Signed-off-by: Numan Siddique <numans at ovn.org>