Add `gnunetd' Upstart job.

svn path=/nixos/trunk/; revision=12802

system/ids.nix

@@ -18,6 +18,7 @@
     postfix = 14;
     dovecot = 15;
     tomcat = 16;
+    gnunetd = 17;
 
     nixbld = 30000; # start of range of uids
     nobody = 65534;

system/options.nix

@@ -1125,6 +1125,142 @@ in
 
     };
 
+    gnunet = {
+    
+      enable = mkOption {
+        default = false;
+        description = ''
+          Whether to run the GNUnet daemon.  GNUnet is GNU's anonymous
+          peer-to-peer communication and file sharing framework.
+        '';
+      };
+
+      home = mkOption {
+        default = "/var/lib/gnunet";
+        description = ''
+          Directory where the GNUnet daemon will store its data.
+        '';
+      };
+
+      debug = mkOption {
+        default = false;
+        description = ''
+          When true, run in debug mode; gnunetd will not daemonize and
+          error messages will be written to stderr instead of a
+          logfile.
+        '';
+      };
+
+      logLevel = mkOption {
+        default = "ERROR";
+        example = "INFO";
+        description = ''
+          Log level of the deamon (see `gnunetd(1)' for details).
+        '';
+      };
+
+      hostLists = mkOption {
+        default = [
+          "http://gnunet.org/hostlist.php"
+          "http://gnunet.mine.nu:8081/hostlist"
+          "http://vserver1236.vserver-on.de/hostlist-074"
+        ];
+        description = ''
+          URLs of host lists.
+        '';
+      };
+
+
+      applications = mkOption {
+        default = [ "advertising" "getoption" "fs" "stats" "traffic" ];
+        example = [ "chat" "fs" ];
+        description = ''
+          List of GNUnet applications supported by the daemon.  Note that
+          `fs', which means "file sharing", is probably the one you want.
+        '';
+      };
+
+      transports = mkOption {
+        default = [ "udp" "tcp" "http" "nat" ];
+        example = [ "smtp" "http" ];
+        description = ''
+          List of transport methods used by the server.
+        '';
+      };
+
+      fileSharing = {
+        quota = mkOption {
+          default = 1024;
+          description = ''
+            Maximum file system usage (in MiB) for file sharing.
+          '';
+        };
+
+        activeMigration = mkOption {
+          default = false;
+          description = ''
+            Whether to allow active migration of content originating
+            from other nodes.
+          '';
+        };
+      };
+
+      load = {
+        maxNetDownBandwidth = mkOption {
+          default = 50000;
+          description = ''
+            Maximum bandwidth usage (in bits per second) for GNUnet
+            when downloading data.
+          '';
+        };
+
+        maxNetUpBandwidth = mkOption {
+          default = 50000;
+          description = ''
+            Maximum bandwidth usage (in bits per second) for GNUnet
+            when downloading data.
+          '';
+        };
+
+        hardNetUpBandwidth = mkOption {
+          default = 0;
+          description = ''
+            Hard bandwidth limit (in bits per second) when uploading
+            data.
+          '';
+        };
+
+        maxCPULoad = mkOption {
+          default = 100;
+          description = ''
+            Maximum CPU load (percentage) authorized for the GNUnet
+            daemon.
+          '';
+        };
+
+        interfaces = mkOption {
+          default = [ "eth0" ];
+          example = [ "wlan0" "eth1" ];
+          description = ''
+            List of network interfaces to use.
+          '';
+        };
+      };
+
+      extraOptions = mkOption {
+        default = "";
+        example = ''
+          [NETWORK]
+          INTERFACE = eth3
+        '';
+        description = ''
+          Additional options that will be copied verbatim in `gnunetd.conf'.
+          See `gnunetd.conf(5)' for details.
+        '';
+      };
+    };
+
+
     xserver = {
 
       enable = mkOption {

upstart-jobs/default.nix

@@ -218,6 +218,13 @@ let
       lshdConfig = config.services.lshd;
     })
 
+  # GNUnet daemon.
+  ++ optional config.services.gnunet.enable
+    (import ../upstart-jobs/gnunet.nix {
+      inherit (pkgs) gnunet lib writeText;
+      gnunetConfig = config.services.gnunet;
+    })
+
   # NTP daemon.
   ++ optional config.services.ntp.enable
     (import ../upstart-jobs/ntpd.nix {

upstart-jobs/gnunet.nix

@@ -0,0 +1,64 @@
+{ gnunet, gnunetConfig, lib, writeText }:
+
+assert gnunetConfig.enable;
+
+{
+  name = "gnunetd";
+
+  users = [
+    { name = "gnunetd";
+      uid = (import ../system/ids.nix).uids.gnunetd;
+      description = "GNUnet Daemon User";
+      home = "/var/empty";
+    }
+  ];
+
+  job =
+    with gnunetConfig;
+    let configFile = writeText "gnunetd.conf" ''
+      [PATHS]
+      GNUNETD_HOME = ${home}
+
+      [GNUNETD]
+      HOSTLISTURL = ${lib.concatStringsSep " " hostLists}
+      APPLICATIONS = ${lib.concatStringsSep " " applications}
+      TRANSPORTS = ${lib.concatStringsSep " " transports}
+
+      [LOAD]
+      MAXNETDOWNBPSTOTAL = ${toString load.maxNetDownBandwidth}
+      MAXNETUPBPSTOTAL = ${toString load.maxNetUpBandwidth}
+      HARDUPLIMIT = ${toString load.hardNetUpBandwidth}
+      MAXCPULOAD = ${toString load.maxCPULoad}
+      INTERFACES = ${lib.concatStringsSep " " load.interfaces}
+
+      [FS]
+      QUOTA = ${toString fileSharing.quota}
+      ACTIVEMIGRATION = ${if fileSharing.activeMigration then "YES" else "NO"}
+
+      [MODULES]
+      sqstore = sqstore_sqlite
+      dstore = dstore_sqlite
+      topology = topology_default
+
+      ${extraOptions}
+    '';
+
+    in ''
+description "The GNUnet Daemon"
+
+start on network-interfaces/started
+stop on network-interfaces/stop
+
+start script
+    test -d "${home}" || \
+    ( mkdir -m 755 -p "${home}" && chown -R gnunetd:users "${home}")
+end script
+
+respawn ${gnunet}/bin/gnunetd                   \
+  ${if debug then "--debug" else "" }           \
+  --user="gnunetd"                              \
+  --config="${configFile}"                      \
+  --log="${logLevel}"
+'';
+
+}