nixpkgs/nixos/tests/babeld.nix

import ./make-test-python.nix (
  { pkgs, lib, ... }:
  {
    name = "babeld";
    meta = with pkgs.lib.maintainers; {
      maintainers = [ hexa ];
    };

    nodes = {
      client =
        { pkgs, lib, ... }:
        {
          virtualisation.vlans = [ 10 ];

          networking = {
            useDHCP = false;
            interfaces."eth1" = {
              ipv4.addresses = lib.mkForce [
                {
                  address = "192.168.10.2";
                  prefixLength = 24;
                }
              ];
              ipv4.routes = lib.mkForce [
                {
                  address = "0.0.0.0";
                  prefixLength = 0;
                  via = "192.168.10.1";
                }
              ];
              ipv6.addresses = lib.mkForce [
                {
                  address = "2001:db8:10::2";
                  prefixLength = 64;
                }
              ];
              ipv6.routes = lib.mkForce [
                {
                  address = "::";
                  prefixLength = 0;
                  via = "2001:db8:10::1";
                }
              ];
            };
          };
        };

      local_router =
        { pkgs, lib, ... }:
        {
          virtualisation.vlans = [
            10
            20
          ];

          networking = {
            useDHCP = false;
            firewall.enable = false;

            interfaces."eth1" = {
              ipv4.addresses = lib.mkForce [
                {
                  address = "192.168.10.1";
                  prefixLength = 24;
                }
              ];
              ipv6.addresses = lib.mkForce [
                {
                  address = "2001:db8:10::1";
                  prefixLength = 64;
                }
              ];
            };

            interfaces."eth2" = {
              ipv4.addresses = lib.mkForce [
                {
                  address = "192.168.20.1";
                  prefixLength = 24;
                }
              ];
              ipv6.addresses = lib.mkForce [
                {
                  address = "2001:db8:20::1";
                  prefixLength = 64;
                }
              ];
            };
          };

          services.babeld = {
            enable = true;
            interfaces.eth2 = {
              hello-interval = 1;
              type = "wired";
            };
            extraConfig = ''
              local-port-readwrite 33123

              import-table 254 # main
              export-table 254 # main

              in ip 192.168.10.0/24 deny
              in ip 192.168.20.0/24 deny
              in ip 2001:db8:10::/64 deny
              in ip 2001:db8:20::/64 deny

              in ip 192.168.30.0/24 allow
              in ip 2001:db8:30::/64 allow

              in deny

              redistribute local proto 2
              redistribute local deny
            '';
          };
        };
      remote_router =
        { pkgs, lib, ... }:
        {
          virtualisation.vlans = [
            20
            30
          ];

          networking = {
            useDHCP = false;
            firewall.enable = false;

            interfaces."eth1" = {
              ipv4.addresses = lib.mkForce [
                {
                  address = "192.168.20.2";
                  prefixLength = 24;
                }
              ];
              ipv6.addresses = lib.mkForce [
                {
                  address = "2001:db8:20::2";
                  prefixLength = 64;
                }
              ];
            };

            interfaces."eth2" = {
              ipv4.addresses = lib.mkForce [
                {
                  address = "192.168.30.1";
                  prefixLength = 24;
                }
              ];
              ipv6.addresses = lib.mkForce [
                {
                  address = "2001:db8:30::1";
                  prefixLength = 64;
                }
              ];
            };
          };

          services.babeld = {
            enable = true;
            interfaces.eth1 = {
              hello-interval = 1;
              type = "wired";
            };
            extraConfig = ''
              local-port-readwrite 33123

              import-table 254 # main
              export-table 254 # main

              in ip 192.168.20.0/24 deny
              in ip 192.168.30.0/24 deny
              in ip 2001:db8:20::/64 deny
              in ip 2001:db8:30::/64 deny

              in ip 192.168.10.0/24 allow
              in ip 2001:db8:10::/64 allow

              in deny

              redistribute local proto 2
              redistribute local deny
            '';
          };

        };
    };

    testScript = ''
      start_all()

      local_router.wait_for_unit("babeld.service")
      remote_router.wait_for_unit("babeld.service")

      local_router.wait_until_succeeds("ip route get 192.168.30.1")
      local_router.wait_until_succeeds("ip route get 2001:db8:30::1")

      remote_router.wait_until_succeeds("ip route get 192.168.10.1")
      remote_router.wait_until_succeeds("ip route get 2001:db8:10::1")

      client.succeed("ping -c1 192.168.30.1")
      client.succeed("ping -c1 2001:db8:30::1")

      remote_router.succeed("ping -c1 192.168.10.2")
      remote_router.succeed("ping -c1 2001:db8:10::2")
    '';
  }
)