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
diff --git a/src/ethernet_interface.cpp b/src/ethernet_interface.cpp
index 52f68d1..1e63a48 100644
--- a/src/ethernet_interface.cpp
+++ b/src/ethernet_interface.cpp
@@ -1145,6 +1145,7 @@
{
auto value = manager.getDHCPConf()->dnsEnabled() ? "true"s : "false"s;
stream << "UseDNS="s + value + "\n";
+ stream << "UseDomains="s + value + "\n";
value = manager.getDHCPConf()->ntpEnabled() ? "true"s : "false"s;
stream << "UseNTP="s + value + "\n";