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path: root/modules/nixos/personal/networking/default.nix
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{
  config,
  lib,
  pkgs,
  options,
  ...
}:
let
  cfg = config.personal.networking;
  mkFirewallEnableOption =
    name:
    lib.mkOption {
      type = lib.types.bool;
      default = false;
      description = "Whether to open ports for ${name}.";
    };
in
{
  imports = [ ./wifi.nix ];

  options.personal.networking = {
    enable = lib.mkEnableOption "networking";
    bluetooth.enable = lib.mkEnableOption "bluetooth";
    networkmanager.enable = lib.mkEnableOption "NetworkManager";
    ssh.enable = lib.mkEnableOption "SSH server";
    firewall = {
      syncthing = mkFirewallEnableOption "Syncthing";
      kdeconnect = mkFirewallEnableOption "KDE Connect";
      http = mkFirewallEnableOption "HTTP and HTTPS (incoming)";
    };
  };

  config = lib.mkIf cfg.enable {
    environment.systemPackages = lib.optional cfg.networkmanager.enable pkgs.networkmanager;
    networking = {
      networkmanager = lib.mkIf cfg.networkmanager.enable {
        enable = true;
        unmanaged = [ "interface-name:ve-*" ];
      };
      firewall = {
        enable = true;
        allowedTCPPorts =
          lib.optional cfg.firewall.syncthing 22000
          ++ lib.optionals cfg.firewall.http [
            80
            443
          ];
        allowedUDPPorts = lib.optionals cfg.firewall.syncthing [
          22000
          21027
        ];
        allowedTCPPortRanges = lib.optional cfg.firewall.kdeconnect {
          from = 1714;
          to = 1764;
        };
        allowedUDPPortRanges = lib.optional cfg.firewall.kdeconnect {
          from = 1714;
          to = 1764;
        };
      };
    };
    services = lib.mkIf cfg.ssh.enable {
      openssh = {
        enable = true;
      }
      // (
        if options.services.openssh ? settings then
          {
            settings = {
              PermitRootLogin = "no";
              PasswordAuthentication = false;
            };
          }
        else
          {
            permitRootLogin = "no";
            passwordAuthentication = false;
          }
      );
      fail2ban = {
        enable = true;
        maxretry = 16;
        bantime-increment.enable = true;
      };
    };
    hardware.bluetooth.enable = cfg.bluetooth.enable;
  };
}