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147 lines
3.6 KiB
147 lines
3.6 KiB
{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.services.xinetd;
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configFile = pkgs.writeText "xinetd.conf"
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''
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defaults
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{
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log_type = SYSLOG daemon info
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log_on_failure = HOST
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log_on_success = PID HOST DURATION EXIT
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${cfg.extraDefaults}
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}
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${concatMapStrings makeService cfg.services}
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'';
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makeService = srv:
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''
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service ${srv.name}
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{
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protocol = ${srv.protocol}
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${optionalString srv.unlisted "type = UNLISTED"}
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${optionalString (srv.flags != "") "flags = ${srv.flags}"}
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socket_type = ${if srv.protocol == "udp" then "dgram" else "stream"}
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${if srv.port != 0 then "port = ${toString srv.port}" else ""}
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wait = ${if srv.protocol == "udp" then "yes" else "no"}
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user = ${srv.user}
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server = ${srv.server}
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${optionalString (srv.serverArgs != "") "server_args = ${srv.serverArgs}"}
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${srv.extraConfig}
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}
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'';
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in
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{
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###### interface
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options = {
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services.xinetd.enable = mkEnableOption "the xinetd super-server daemon";
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services.xinetd.extraDefaults = mkOption {
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default = "";
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type = types.lines;
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description = ''
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Additional configuration lines added to the default section of xinetd's configuration.
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'';
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};
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services.xinetd.services = mkOption {
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default = [];
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description = ''
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A list of services provided by xinetd.
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'';
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type = with types; listOf (submodule ({
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options = {
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name = mkOption {
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type = types.str;
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example = "login";
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description = "Name of the service.";
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};
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protocol = mkOption {
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type = types.str;
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default = "tcp";
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description =
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"Protocol of the service. Usually <literal>tcp</literal> or <literal>udp</literal>.";
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};
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port = mkOption {
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type = types.int;
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default = 0;
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example = 123;
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description = "Port number of the service.";
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};
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user = mkOption {
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type = types.str;
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default = "nobody";
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description = "User account for the service";
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};
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server = mkOption {
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type = types.str;
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example = "/foo/bin/ftpd";
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description = "Path of the program that implements the service.";
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};
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serverArgs = mkOption {
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type = types.separatedString " ";
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default = "";
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description = "Command-line arguments for the server program.";
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};
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flags = mkOption {
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type = types.str;
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default = "";
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description = "";
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};
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unlisted = mkOption {
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type = types.bool;
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default = false;
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description = ''
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Whether this server is listed in
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<filename>/etc/services</filename>. If so, the port
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number can be omitted.
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'';
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};
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extraConfig = mkOption {
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type = types.lines;
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default = "";
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description = "Extra configuration-lines added to the section of the service.";
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};
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};
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}));
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};
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};
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###### implementation
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config = mkIf cfg.enable {
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systemd.services.xinetd = {
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description = "xinetd server";
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after = [ "network.target" ];
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wantedBy = [ "multi-user.target" ];
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path = [ pkgs.xinetd ];
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script = "exec xinetd -syslog daemon -dontfork -stayalive -f ${configFile}";
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};
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};
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}
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