nixpkgs/nixos/tests/systemd-bpf.nix

import ./make-test-python.nix ({ lib, ... }: {
  name = "systemd-bpf";
  meta = with lib.maintainers; {
    maintainers = [ veehaitch ];
  };
  nodes = {
    node1 = {
      virtualisation.vlans = [ 1 ];
      networking = {
        useNetworkd = true;
        useDHCP = false;
        firewall.enable = false;
        interfaces.eth1.ipv4.addresses = [
          { address = "192.168.1.1"; prefixLength = 24; }
        ];
      };
    };

    node2 = {
      virtualisation.vlans = [ 1 ];
      networking = {
        useNetworkd = true;
        useDHCP = false;
        firewall.enable = false;
        interfaces.eth1.ipv4.addresses = [
          { address = "192.168.1.2"; prefixLength = 24; }
        ];
      };
    };
  };

  testScript = ''
    start_all()
    node1.wait_for_unit("systemd-networkd-wait-online.service")
    node2.wait_for_unit("systemd-networkd-wait-online.service")

    with subtest("test RestrictNetworkInterfaces= works"):
      node1.succeed("ping -c 5 192.168.1.2")
      node1.succeed("systemd-run -t -p RestrictNetworkInterfaces='eth1' ping -c 5 192.168.1.2")
      node1.fail("systemd-run -t -p RestrictNetworkInterfaces='lo' ping -c 5 192.168.1.2")
  '';
})