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https://github.com/NixOS/nixpkgs.git
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4d545297d8
* lib: introduce imap0, imap1
For historical reasons, imap starts counting at 1 and it's not
consistent with the rest of the lib.
So for now we split imap into imap0 that starts counting at zero and
imap1 that starts counting at 1. And imap is marked as deprecated.
See c71e2d4235 (commitcomment-21873221)
* replace uses of lib.imap
* lib: move imap to deprecated.nix
127 lines
3.3 KiB
Nix
127 lines
3.3 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.services.libreswan;
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libexec = "${pkgs.libreswan}/libexec/ipsec";
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ipsec = "${pkgs.libreswan}/sbin/ipsec";
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trim = chars: str: let
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nonchars = filter (x : !(elem x.value chars))
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(imap0 (i: v: {ind = i; value = v;}) (stringToCharacters str));
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in
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if length nonchars == 0 then ""
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else substring (head nonchars).ind (add 1 (sub (last nonchars).ind (head nonchars).ind)) str;
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indent = str: concatStrings (concatMap (s: [" " (trim [" " "\t"] s) "\n"]) (splitString "\n" str));
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configText = indent (toString cfg.configSetup);
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connectionText = concatStrings (mapAttrsToList (n: v:
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''
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conn ${n}
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${indent v}
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'') cfg.connections);
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configFile = pkgs.writeText "ipsec.conf"
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''
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config setup
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${configText}
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${connectionText}
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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.libreswan = {
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enable = mkEnableOption "libreswan ipsec service";
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configSetup = mkOption {
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type = types.lines;
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default = ''
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protostack=netkey
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nat_traversal=yes
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virtual_private=%v4:10.0.0.0/8,%v4:192.168.0.0/16,%v4:172.16.0.0/12,%v4:25.0.0.0/8,%v4:100.64.0.0/10,%v6:fd00::/8,%v6:fe80::/10
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'';
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example = ''
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secretsfile=/root/ipsec.secrets
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protostack=netkey
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nat_traversal=yes
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virtual_private=%v4:10.0.0.0/8,%v4:192.168.0.0/16,%v4:172.16.0.0/12,%v4:25.0.0.0/8,%v4:100.64.0.0/10,%v6:fd00::/8,%v6:fe80::/10
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'';
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description = "Options to go in the 'config setup' section of the libreswan ipsec configuration";
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};
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connections = mkOption {
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type = types.attrsOf types.lines;
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default = {};
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example = {
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myconnection = ''
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auto=add
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left=%defaultroute
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leftid=@user
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right=my.vpn.com
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ikev2=no
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ikelifetime=8h
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'';
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};
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description = "A set of connections to define for the libreswan ipsec service";
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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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environment.systemPackages = [ pkgs.libreswan pkgs.iproute ];
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systemd.services.ipsec = {
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description = "Internet Key Exchange (IKE) Protocol Daemon for IPsec";
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path = [
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"${pkgs.libreswan}"
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"${pkgs.iproute}"
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"${pkgs.procps}"
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];
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wants = [ "network-online.target" ];
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after = [ "network-online.target" ];
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wantedBy = [ "multi-user.target" ];
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serviceConfig = {
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Type = "simple";
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Restart = "always";
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EnvironmentFile = "-${pkgs.libreswan}/etc/sysconfig/pluto";
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ExecStartPre = [
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"${libexec}/addconn --config ${configFile} --checkconfig"
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"${libexec}/_stackmanager start"
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"${ipsec} --checknss"
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"${ipsec} --checknflog"
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];
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ExecStart = "${libexec}/pluto --config ${configFile} --nofork \$PLUTO_OPTIONS";
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ExecStop = "${libexec}/whack --shutdown";
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ExecStopPost = [
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"${pkgs.iproute}/bin/ip xfrm policy flush"
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"${pkgs.iproute}/bin/ip xfrm state flush"
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"${ipsec} --stopnflog"
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];
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ExecReload = "${libexec}/whack --listen";
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};
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};
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};
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}
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