88 lines
3.2 KiB
Nix
88 lines
3.2 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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with (import ./param-lib.nix lib);
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let
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cfg = config.services.strongswan-swanctl;
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configFile = pkgs.writeText "swanctl.conf"
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( (paramsToConf cfg.swanctl swanctlParams)
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+ (concatMapStrings (i: "\ninclude ${i}") cfg.includes));
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swanctlParams = import ./swanctl-params.nix lib;
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in {
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options.services.strongswan-swanctl = {
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enable = mkEnableOption (lib.mdDoc "strongswan-swanctl service");
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package = mkPackageOption pkgs "strongswan" { };
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strongswan.extraConfig = mkOption {
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type = types.str;
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default = "";
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description = lib.mdDoc ''
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Contents of the `strongswan.conf` file.
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'';
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};
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swanctl = paramsToOptions swanctlParams;
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includes = mkOption {
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type = types.listOf types.path;
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default = [];
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description = ''
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Extra configuration files to include in the swanctl configuration. This can be used to provide secret values from outside the nix store.
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'';
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};
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};
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config = mkIf cfg.enable {
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assertions = [
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{ assertion = !config.services.strongswan.enable;
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message = "cannot enable both services.strongswan and services.strongswan-swanctl. Choose either one.";
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}
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];
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environment.etc."swanctl/swanctl.conf".source = configFile;
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# The swanctl command complains when the following directories don't exist:
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# See: https://wiki.strongswan.org/projects/strongswan/wiki/Swanctldirectory
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systemd.tmpfiles.rules = [
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"d /etc/swanctl/x509 -" # Trusted X.509 end entity certificates
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"d /etc/swanctl/x509ca -" # Trusted X.509 Certificate Authority certificates
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"d /etc/swanctl/x509ocsp -"
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"d /etc/swanctl/x509aa -" # Trusted X.509 Attribute Authority certificates
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"d /etc/swanctl/x509ac -" # Attribute Certificates
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"d /etc/swanctl/x509crl -" # Certificate Revocation Lists
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"d /etc/swanctl/pubkey -" # Raw public keys
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"d /etc/swanctl/private -" # Private keys in any format
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"d /etc/swanctl/rsa -" # PKCS#1 encoded RSA private keys
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"d /etc/swanctl/ecdsa -" # Plain ECDSA private keys
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"d /etc/swanctl/bliss -"
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"d /etc/swanctl/pkcs8 -" # PKCS#8 encoded private keys of any type
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"d /etc/swanctl/pkcs12 -" # PKCS#12 containers
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];
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systemd.services.strongswan-swanctl = {
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description = "strongSwan IPsec IKEv1/IKEv2 daemon using swanctl";
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wantedBy = [ "multi-user.target" ];
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wants = [ "network-online.target" ];
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after = [ "network-online.target" ];
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path = with pkgs; [ kmod iproute2 iptables util-linux ];
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environment = {
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STRONGSWAN_CONF = pkgs.writeTextFile {
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name = "strongswan.conf";
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text = cfg.strongswan.extraConfig;
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};
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SWANCTL_DIR = "/etc/swanctl";
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};
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restartTriggers = [ config.environment.etc."swanctl/swanctl.conf".source ];
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serviceConfig = {
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ExecStart = "${cfg.package}/sbin/charon-systemd";
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Type = "notify";
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ExecStartPost = "${cfg.package}/sbin/swanctl --load-all --noprompt";
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ExecReload = "${cfg.package}/sbin/swanctl --reload";
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Restart = "on-abnormal";
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};
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};
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};
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}
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