81 lines
2.3 KiB
Nix
81 lines
2.3 KiB
Nix
{ config, lib, pkgs, ... }:
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let
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cfg = config.services.mullvad-vpn;
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in
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with lib;
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{
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options.services.mullvad-vpn = {
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enable = mkOption {
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type = types.bool;
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default = false;
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description = lib.mdDoc ''
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This option enables Mullvad VPN daemon.
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This sets {option}`networking.firewall.checkReversePath` to "loose", which might be undesirable for security.
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'';
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};
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enableExcludeWrapper = mkOption {
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type = types.bool;
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default = true;
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description = lib.mdDoc ''
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This option activates the wrapper that allows the use of mullvad-exclude.
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Might have minor security impact, so consider disabling if you do not use the feature.
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'';
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};
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package = mkOption {
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type = types.package;
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default = pkgs.mullvad;
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defaultText = literalExpression "pkgs.mullvad";
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description = lib.mdDoc ''
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The Mullvad package to use. `pkgs.mullvad` only provides the CLI tool, `pkgs.mullvad-vpn` provides both the CLI and the GUI.
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'';
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};
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};
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config = mkIf cfg.enable {
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boot.kernelModules = [ "tun" ];
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environment.systemPackages = [ cfg.package ];
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# mullvad-daemon writes to /etc/iproute2/rt_tables
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networking.iproute2.enable = true;
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# See https://github.com/NixOS/nixpkgs/issues/113589
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networking.firewall.checkReversePath = "loose";
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# See https://github.com/NixOS/nixpkgs/issues/176603
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security.wrappers.mullvad-exclude = mkIf cfg.enableExcludeWrapper {
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setuid = true;
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owner = "root";
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group = "root";
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source = "${cfg.package}/bin/mullvad-exclude";
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};
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systemd.services.mullvad-daemon = {
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description = "Mullvad VPN daemon";
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wantedBy = [ "multi-user.target" ];
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wants = [ "network.target" ];
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after = [
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"network-online.target"
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"NetworkManager.service"
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"systemd-resolved.service"
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];
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path = [
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pkgs.iproute2
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# Needed for ping
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"/run/wrappers"
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];
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startLimitBurst = 5;
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startLimitIntervalSec = 20;
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serviceConfig = {
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ExecStart = "${cfg.package}/bin/mullvad-daemon -v --disable-stdout-timestamps";
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Restart = "always";
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RestartSec = 1;
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};
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};
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};
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meta.maintainers = with maintainers; [ arcuru ymarkus ];
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}
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