miniupnpd: add service

nixos/modules/module-list.nix

@@ -312,6 +312,7 @@
   ./services/networking/lambdabot.nix
   ./services/networking/mailpile.nix
   ./services/networking/minidlna.nix
+  ./services/networking/miniupnpd.nix
   ./services/networking/mstpd.nix
   ./services/networking/murmur.nix
   ./services/networking/namecoind.nix

nixos/modules/services/networking/miniupnpd.nix

@@ -0,0 +1,70 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let
+  cfg = config.services.miniupnpd;
+  configFile = pkgs.writeText "miniupnpd.conf" ''
+    ext_ifname=${cfg.externalInterface}
+    enable_natpmp=${if cfg.natpmp then "yes" else "no"}
+    enable_upnp=${if cfg.upnp then "yes" else "no"}
+
+    ${concatMapStrings (range: ''
+      listening_ip=${range}
+    '') cfg.internalIPs}
+
+    ${cfg.appendConfig}
+  '';
+in
+{
+  options = {
+    services.miniupnpd = {
+      enable = mkEnableOption "MiniUPnP daemon";
+
+      externalInterface = mkOption {
+        type = types.str;
+        description = ''
+          Name of the external interface.
+        '';
+      };
+
+      internalIPs = mkOption {
+        type = types.listOf types.str;
+        example = [ "192.168.1.0/24" ];
+        description = ''
+          The IP address ranges to listen on.
+        '';
+      };
+
+      natpmp = mkEnableOption "NAT-PMP support";
+
+      upnp = mkOption {
+        default = true;
+        type = types.bool;
+        description = ''
+          Whether to enable UPNP support.
+        '';
+      };
+
+      appendConfig = mkOption {
+        type = types.lines;
+        default = "";
+        description = ''
+          Configuration lines appended to the MiniUPnP config.
+        '';
+      };
+    };
+  };
+
+  config = mkIf cfg.enable {
+    systemd.services.miniupnpd = {
+      description = "MiniUPnP daemon";
+      after = [ "network.target" ];
+      wantedBy = [ "multi-user.target" ];
+      path = [ pkgs.miniupnpd ];
+      serviceConfig = {
+        ExecStart = "${pkgs.miniupnpd}/bin/miniupnpd -d -f ${configFile}";
+      };
+    };
+  };
+}