76 lines
2.4 KiB
Nix
76 lines
2.4 KiB
Nix
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{ config, lib, pkgs, ... }:
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let
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types = lib.types;
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cfg = config.services.shorewall;
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in {
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options = {
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services.shorewall = {
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enable = lib.mkOption {
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type = types.bool;
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default = false;
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description = ''
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Whether to enable Shorewall IPv4 Firewall.
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<warning>
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<para>
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Enabling this service WILL disable the existing NixOS
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firewall! Default firewall rules provided by packages are not
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considered at the moment.
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</para>
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</warning>
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'';
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};
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package = lib.mkOption {
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type = types.package;
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default = pkgs.shorewall;
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defaultText = "pkgs.shorewall";
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description = "The shorewall package to use.";
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};
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configs = lib.mkOption {
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type = types.attrsOf types.str;
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default = {};
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description = ''
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This option defines the Shorewall configs.
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The attribute name defines the name of the config,
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and the attribute value defines the content of the config.
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'';
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apply = lib.mapAttrs (name: text: pkgs.writeText "${name}" text);
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};
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};
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};
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config = lib.mkIf cfg.enable {
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systemd.services.firewall.enable = false;
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systemd.services.shorewall = {
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description = "Shorewall IPv4 Firewall";
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after = [ "ipset.target" ];
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before = [ "network-pre.target" ];
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wants = [ "network-pre.target" ];
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wantedBy = [ "multi-user.target" ];
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reloadIfChanged = true;
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restartTriggers = lib.attrValues cfg.configs;
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serviceConfig = {
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Type = "oneshot";
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RemainAfterExit = "yes";
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ExecStart = "${cfg.package}/bin/shorewall start";
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ExecReload = "${cfg.package}/bin/shorewall reload";
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ExecStop = "${cfg.package}/bin/shorewall stop";
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};
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preStart = ''
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install -D -d -m 750 /var/lib/shorewall
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install -D -d -m 755 /var/lock/subsys
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touch /var/log/shorewall.log
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chown 750 /var/log/shorewall.log
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'';
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};
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environment = {
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etc = lib.mapAttrsToList
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(name: file:
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{ source = file;
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target = "shorewall/${name}";
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})
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cfg.configs;
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systemPackages = [ cfg.package ];
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};
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};
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}
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