tree a419eb0aadb441d24a9ed6214a5dc2b3d50bc56a
parent 24b5a619e1e63195c775bca893d6f7ebbff1d1a5
author sunharis <sunharis@in.ibm.com> 1648709361 -0500
committer Sunitha Harish <sunithaharish04@gmail.com> 1651198910 +0000

ethernet_interface: Add UseDomains option to network file

When the interface is DHCP enabled, domain-search value 119
is not requested by the DHCP client.

This commit adds the UseDomains option to network file
so that when the DNS is enabled, the domain-search option
is requested via DHCP REQUEST, and search list provided by DHCP
server are pulled to the DHCP lease and the resolv.conf

Fixes https://github.com/openbmc/phosphor-networkd/issues/47

Tested by:
  1.Enable DNS option at BMC and check the DHCP REQUEST packet for
    option 119
  2.Verify the list 'option domain-search' at the DHCP server is
    fetched by the DHCP lease file at BMC
  3.Verify the same list is added to the search list at resolv.conf

Signed-off-by: sunharis <sunharis@in.ibm.com>
Change-Id: I2f6ca7236bf3b5e7d3ded9294b8372d95ac50ac6