vcp-bula-nixfiles/hosts/router/10-net-services.nix

{ config, pkgs, ...}:

{
  networking.vlans."net-services" = {
    id = 10;
    interface = "ens18";
  };

  networking.wireguard = {
    enable = true;
    interfaces = {
      wg-services = {
        ips = [ "fe80::42:10:1/64" ];
        privateKeyFile = "/var/src/secrets/wireguard/wg-services";
        allowedIPsAsRoutes = false;
        peers = [{
          publicKey = "Y++eB9SfU17zB4mJ/6AaN761tngXAyTNoVaPNKmuvls=";
          allowedIPs = [ "::/0"  ];
          endpoint = "78.47.183.82:51876";
          #endpoint = "gatekeeper.net.clerie.de:51876";
          persistentKeepalive = 25;
        }];
      };
    };
  };

  networking.localCommands = ''
    ip -6 route add default dev wg-services table 20003
  '';

  clerie.policyrouting.rules6 = [
    { rule = "from 2a01:4f8:1c0c:8221::/64 lookup 20003"; prio = 19000; }
  ];

  networking.interfaces.net-services.ipv4.addresses = [
    { address = "10.42.10.1"; prefixLength = 24; }
    { address = "10.42.10.2"; prefixLength = 24; }
  ];
  networking.interfaces.net-services.ipv6.addresses = [
    { address = "fe80::1"; prefixLength = 64; }
    { address = "fd00:10:42:10::1"; prefixLength = 64; }
    { address = "fd00:10:42:10::2"; prefixLength = 64; }
    { address = "2a01:4f8:1c0c:8221::1"; prefixLength = 64; }
    { address = "2a01:4f8:1c0c:8221::2"; prefixLength = 64; }
  ];
  networking.interfaces.net-services.ipv4.routes = [
    { address = "10.42.132.0"; prefixLength = 23; via = "10.42.10.6"; }
  ];

  services.radvd.config = ''
    interface net-services {
      AdvSendAdvert on;
      MaxRtrAdvInterval 30;
      prefix ::/64 {
        AdvValidLifetime 60;
        AdvPreferredLifetime 30;
      };
      RDNSS 2a01:4f8:1c0c:8221::8 {};
      DNSSL bula22.de {};
    };
  '';

  services.kea.dhcp4 = {
    settings = {
      interfaces-config = {
        interfaces = [ "net-services" ];
      };
      subnet4 = [
        {
          id = 10;
          subnet = "10.42.10.1/24";
          pools = [
            {
              pool = "10.42.10.100 - 10.42.10.240";
            }
          ];
          option-data = [
            {
              name = "routers";
              data = "10.42.10.1";
            }
          ];
        }
      ];
    };
  };

  # Everyone is allowed reaching this, no firewall therefore

  clerie.uplink-selector.interfaces.net-services.uplink = "uplink-a";
}