nixpkgs/nixos/tests/systemd-networkd-dhcpserver.nix

110 lines
3.3 KiB
Nix

# This test predominantly tests systemd-networkd DHCP server, by
# setting up a DHCP server and client, and ensuring they are mutually
# reachable via the DHCP allocated address.
# Two DHCP servers are set up on bridge VLANs, testing to make sure that
# bridge VLAN settings are correctly applied.
#
# br0 ----untagged---v
# +---PVID 1+VLAN 2---[bridge]---PVID 2---eth1
# vlan2 ---VLAN 2----^
import ./make-test-python.nix ({pkgs, ...}: {
name = "systemd-networkd-dhcpserver";
meta = with pkgs.lib.maintainers; {
maintainers = [ tomfitzhenry ];
};
nodes = {
router = { config, pkgs, ... }: {
virtualisation.vlans = [ 1 ];
systemd.services.systemd-networkd.environment.SYSTEMD_LOG_LEVEL = "debug";
networking = {
useNetworkd = true;
useDHCP = false;
firewall.enable = false;
};
systemd.network = {
netdevs = {
br0 = {
enable = true;
netdevConfig = {
Name = "br0";
Kind = "bridge";
};
extraConfig = ''
[Bridge]
VLANFiltering=yes
DefaultPVID=none
'';
};
vlan2 = {
enable = true;
netdevConfig = {
Name = "vlan2";
Kind = "vlan";
};
vlanConfig.Id = 2;
};
};
networks = {
# systemd-networkd will load the first network unit file
# that matches, ordered lexiographically by filename.
# /etc/systemd/network/{40-eth1,99-main}.network already
# exists. This network unit must be loaded for the test,
# however, hence why this network is named such.
"01-eth1" = {
name = "eth1";
networkConfig.Bridge = "br0";
bridgeVLANs = [
{ bridgeVLANConfig = { PVID = 2; EgressUntagged = 2; }; }
];
};
"02-br0" = {
name = "br0";
networkConfig = {
DHCPServer = true;
Address = "10.0.0.1/24";
VLAN = ["vlan2"];
};
dhcpServerConfig = {
PoolOffset = 100;
PoolSize = 1;
};
bridgeVLANs = [
{ bridgeVLANConfig = { PVID = 1; EgressUntagged = 1; }; }
{ bridgeVLANConfig = { VLAN = 2; }; }
];
};
"02-vlan2" = {
name = "vlan2";
networkConfig = {
DHCPServer = true;
Address = "10.0.2.1/24";
};
dhcpServerConfig = {
PoolOffset = 100;
PoolSize = 1;
};
};
};
};
};
client = { config, pkgs, ... }: {
virtualisation.vlans = [ 1 ];
systemd.services.systemd-networkd.environment.SYSTEMD_LOG_LEVEL = "debug";
networking = {
useNetworkd = true;
useDHCP = false;
firewall.enable = false;
interfaces.eth1.useDHCP = true;
};
};
};
testScript = { ... }: ''
start_all()
router.wait_for_unit("systemd-networkd-wait-online.service")
client.wait_for_unit("systemd-networkd-wait-online.service")
client.wait_until_succeeds("ping -c 5 10.0.2.1")
router.wait_until_succeeds("ping -c 5 10.0.2.100")
'';
})