Adding xinetd with a possible tftpd server.

svn path=/nixos/trunk/; revision=16784

modules/module-list.nix

@@ -69,6 +69,7 @@
   ./services/networking/ssh/lshd.nix
   ./services/networking/ssh/sshd.nix
   ./services/networking/vsftpd.nix
+  ./services/networking/xinetd.nix
   ./services/networking/wpa_supplicant.nix
   ./services/printing/cupsd.nix
   ./services/scheduling/atd.nix

modules/services/networking/xinetd.nix

@@ -0,0 +1,95 @@
+{pkgs, config, ...}:
+
+###### interface
+let
+  inherit (pkgs.lib) mkOption mkIf;
+
+  options = {
+    services = {
+      xinetd = {
+        enable = mkOption {
+          default = false;
+          description = "
+            Whether to enable the vsftpd FTP server.
+          ";
+        };
+
+        tftpd = {
+          enable = mkOption {
+            default = false;
+            description = "
+              Whether to enable the anonymous FTP user.
+            ";
+          };
+
+          path = mkOption {
+            default = "/home/tftp";
+            description = "
+              Where the tftp server files are stored
+            ";
+          };
+        };
+      };
+    };
+  };
+in
+
+###### implementation
+
+let 
+
+  inherit (config.services.xinetd) tftpd;
+  inherit (pkgs) xinetd;
+
+  tftpservice = ''
+    service tftp
+    {
+       protocol = udp
+       port = 69
+       socket_type = dgram
+       wait = yes
+       user = nobody
+       server = ${pkgs.netkittftp}/sbin/in.tftpd
+       server_args = ${tftpd.path}
+       disable = no
+    }
+  '';
+
+  configFile = pkgs.writeText "xinetd.conf" ''
+    defaults
+    {
+      log_type = SYSLOG daemon info
+      log_on_failure = HOST
+      log_on_success = PID HOST DURATION EXIT
+    }
+    ${if tftpd.enable then tftpservice else ""}
+  '';
+
+in
+
+mkIf config.services.xinetd.enable {
+  require = [
+    options
+  ];
+
+  services = {
+    extraJobs = [{
+      name = "xinetd";
+
+      job = ''
+        description "xinetd server"
+
+        start on network-interfaces/started
+        stop on network-interfaces/stop
+
+        start script
+
+        mkdir -p ${tftpd.path}
+        end script
+
+        respawn ${xinetd}/sbin/xinetd -stayalive -f ${configFile}
+      '';
+      
+    }];
+  };
+}