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nixpkgs/modules/services/networking/xinetd.nix
Eelco Dolstra 8e6ad840f2 * Modularised the xinetd service. tftp has been factored out into a
separate module, which just declares a configuration value that
  causes the xinetd module to add it to xinetd.conf.  Also Nixified
  the service declarations to abstract over the inetd implementation.
  
* Renamed the services.xinetd.tftpd options to services.tftpd.  The
  fact that the tftpd module uses xinetd is an implementation detail.

* xinetd: use -dontfork to let Upstart monitor it, and use -syslog to
  get error messages at startup.

svn path=/nixos/trunk/; revision=16803
2009-08-21 13:05:45 +00:00

136 lines
3 KiB
Nix

{ config, pkgs, ... }:
with pkgs.lib;
let
cfg = config.services.xinetd;
inherit (pkgs) xinetd;
configFile = pkgs.writeText "xinetd.conf"
''
defaults
{
log_type = SYSLOG daemon info
log_on_failure = HOST
log_on_success = PID HOST DURATION EXIT
}
${concatMapStrings makeService cfg.services}
'';
makeService = srv:
''
service ${srv.name}
{
protocol = ${srv.protocol}
${optionalString srv.unlisted "type = UNLISTED"}
socket_type = ${if srv.protocol == "udp" then "dgram" else "stream"}
${if srv.port != 0 then "port = ${toString srv.port}" else ""}
wait = ${if srv.protocol == "udp" then "yes" else "no"}
user = ${srv.user}
server = ${srv.server}
${optionalString (srv.serverArgs != "") "server_args = ${srv.serverArgs}"}
}
'';
in
{
###### interface
options = {
services.xinetd.enable = mkOption {
default = false;
description = ''
Whether to enable the xinetd super-server daemon.
'';
};
services.xinetd.services = mkOption {
default = [];
description = ''
A list of services provided by xinetd.
'';
type = types.list types.optionSet;
options = {
name = mkOption {
type = types.string;
example = "login";
description = "Name of the service.";
};
protocol = mkOption {
type = types.string;
default = "tcp";
description =
"Protocol of the service. Usually <literal>tcp</literal> or <literal>udp</literal>.";
};
port = mkOption {
type = types.int;
default = 0;
example = 123;
description = "Port number of the service.";
};
user = mkOption {
type = types.string;
default = "nobody";
description = "User account for the service";
};
server = mkOption {
type = types.string;
example = "/foo/bin/ftpd";
description = "Path of the program that implements the service.";
};
serverArgs = mkOption {
type = types.string;
default = "";
description = "Command-line arguments for the server program.";
};
unlisted = mkOption {
type = types.bool;
default = false;
description = ''
Whether this server is listed in
<filename>/etc/services</filename>. If so, the port
number can be omitted.
'';
};
};
};
};
###### implementation
config = mkIf cfg.enable {
jobs = singleton
{ name = "xinetd";
description = "xinetd server";
startOn = "network-interfaces/started";
stopOn = "network-interfaces/stop";
exec = "${xinetd}/sbin/xinetd -syslog daemon -dontfork -stayalive -f ${configFile}";
};
};
}