/* This test ensures that we can configure spanning-tree protocol across bridges using systemd-networkd. Test topology: 1 2 3 node1 --- sw1 --- sw2 --- node2 \ / 4 \ / 5 sw3 | 6 | | node3 where switches 1, 2, and 3 bridge their links and use STP, and each link is labeled with the VLAN we are assigning it in virtualisation.vlans. */ with builtins; let commonConf = { systemd.services.systemd-networkd.environment.SYSTEMD_LOG_LEVEL = "debug"; networking.useNetworkd = true; networking.useDHCP = false; networking.firewall.enable = false; }; generateNodeConf = { octet, vlan }: { lib, pkgs, config, ... }: { imports = [ common/user-account.nix commonConf ]; virtualisation.vlans = [ vlan ]; systemd.network = { enable = true; networks = { "30-eth" = { matchConfig.Name = "eth1"; address = [ "10.0.0.${toString octet}/24" ]; }; }; }; }; generateSwitchConf = vlans: { lib, pkgs, config, ... }: { imports = [ common/user-account.nix commonConf ]; virtualisation.vlans = vlans; systemd.network = { enable = true; netdevs = { "40-br0" = { netdevConfig = { Kind = "bridge"; Name = "br0"; }; bridgeConfig.STP = "yes"; }; }; networks = { "30-eth" = { matchConfig.Name = "eth*"; networkConfig.Bridge = "br0"; }; "40-br0" = { matchConfig.Name = "br0"; }; }; }; }; in import ./make-test-python.nix ( { pkgs, ... }: { name = "networkd"; meta = with pkgs.lib.maintainers; { maintainers = [ picnoir ]; }; nodes = { node1 = generateNodeConf { octet = 1; vlan = 1; }; node2 = generateNodeConf { octet = 2; vlan = 3; }; node3 = generateNodeConf { octet = 3; vlan = 6; }; sw1 = generateSwitchConf [ 1 2 4 ]; sw2 = generateSwitchConf [ 2 3 5 ]; sw3 = generateSwitchConf [ 4 5 6 ]; }; testScript = '' network_nodes = [node1, node2, node3] network_switches = [sw1, sw2, sw3] start_all() for n in network_nodes + network_switches: n.wait_for_unit("systemd-networkd-wait-online.service") node1.succeed("ping 10.0.0.2 -w 10 -c 1") node1.succeed("ping 10.0.0.3 -w 10 -c 1") node2.succeed("ping 10.0.0.1 -w 10 -c 1") node2.succeed("ping 10.0.0.3 -w 10 -c 1") node3.succeed("ping 10.0.0.1 -w 10 -c 1") node3.succeed("ping 10.0.0.2 -w 10 -c 1") ''; } )