forked from mirrors/nixpkgs
20b364f4de
After the change from revision 30103, nixos-rebuild suddenly consumed freaky amounts of memory. I had to abort the process after it had allocated well in excess of 30GB(!) of RAM. I'm not sure what is causing this behavior, but undoing that assignment fixes the problem. The other two commits needed to be revoked, too, because they depend on 30103. svn path=/nixos/trunk/; revision=30127
166 lines
4.1 KiB
Nix
166 lines
4.1 KiB
Nix
{ config, pkgs, ... }:
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with pkgs.lib;
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let
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cfg = config.services.openvpn;
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inherit (pkgs) openvpn;
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PATH = "${pkgs.iptables}/sbin:${pkgs.coreutils}/bin:${pkgs.iproute}/sbin:${pkgs.nettools}/sbin";
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makeOpenVPNJob = cfg : name:
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let
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upScript = ''
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#!/bin/sh
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exec &> /var/log/openvpn-${name}-up
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PATH=${PATH}
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${cfg.up}
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'';
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downScript = ''
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#!/bin/sh
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exec &> /var/log/openvpn-${name}-down
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PATH=${PATH}
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${cfg.down}
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'';
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configFile = pkgs.writeText "openvpn-config-${name}"
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''
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${if cfg.up != "" || cfg.down != "" then "script-security 2" else ""}
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${cfg.config}
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${if cfg.up != "" then "up ${pkgs.writeScript "openvpn-${name}-up" upScript}" else "" }
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${if cfg.down != "" then "down ${pkgs.writeScript "openvpn-${name}-down" downScript}" else "" }
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'';
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in {
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description = "OpenVPN-${name}";
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startOn = "started network-interfaces";
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stopOn = "stopping network-interfaces";
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environment = { PATH = "${pkgs.coreutils}/bin"; };
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script =
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''
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exec &> /var/log/openvpn-${name}
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${config.system.sbin.modprobe} tun || true
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${openvpn}/sbin/openvpn --config ${configFile}
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'';
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};
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openvpnInstanceOptions = {
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config = mkOption {
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type = types.string;
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description = ''
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config of this openvpn instance
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'';
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};
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up = mkOption {
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default = "";
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type = types.string;
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description = ''
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script which is run when server instance starts up succesfully.
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Use it to setup firewall and routing
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'';
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};
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down = mkOption {
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default = "";
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type = types.string;
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description = ''
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script which is run when server instance shuts down
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Usually this reverts what up has done
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'';
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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.openvpn = {
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enable = mkOption {
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default = false;
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description = "Whether to enable OpenVPN.";
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};
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servers = mkOption {
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default = {};
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example = {
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mostSimple = {
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config = ''
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# Most simple configuration: http://openvpn.net/index.php/documentation/miscellaneous/static-key-mini-howto.html.
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# server :
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dev tun
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ifconfig 10.8.0.1 10.8.0.2
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secret static.key
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'';
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up = "ip route add ..!";
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down = "ip route add ..!";
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};
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clientMostSimple = {
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config = ''
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#client:
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#remote myremote.mydomain
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#dev tun
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#ifconfig 10.8.0.2 10.8.0.1
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#secret static.key
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'';
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};
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serverScalable = {
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config = ''
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multiple clienst
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see example file found in http://openvpn.net/index.php/documentation/howto.html
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'';
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};
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};
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# !!! clean up this description please
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description = ''
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You can define multiple openvpn instances.
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The id of an instance is given by the attribute name.
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Each instance will result in a new job file.
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Additionally you can specify the up/ down scripts by setting
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the up down properties.
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Config lines up=/nix/store/xxx-up-script down=...
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will be appended to your configuration file automatically
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If you define at least one of up/down "script-security 2" will be
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prepended to your config otherwise you scripts aren't run by openvpn
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Don't forget to check that the all package sizes can be sent. For
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examlpe if scp hangs you should set --fragment XXX --mssfix YYY.
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'';
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type = types.attrsOf types.optionSet;
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options = [ openvpnInstanceOptions ];
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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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jobs = listToAttrs (mapAttrsFlatten (name: value: nameValuePair "openvpn-${name}" (makeOpenVPNJob value name)) cfg.servers);
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environment.systemPackages = [ openvpn ];
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};
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}
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