69 lines
2 KiB
Nix
69 lines
2 KiB
Nix
{ config, lib, pkgs, ... }:
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let
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cfg = config.local.wireguard;
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port = 51820;
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serverAddr = (import ../canigou/data.secret.nix).addr;
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defaultGateway = "192.168.0.1";
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in
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{
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options.local.wireguard = with lib; {
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enable = mkOption {
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type = types.bool;
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default = false;
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description = "Enable wireguard vpn";
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};
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ip = mkOption {
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type = types.str;
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description = "10.100.0.<num>/24";
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example = "10.100.0.1/24";
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};
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privateKeyFile = mkOption {
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type = types.str;
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};
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};
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config = lib.mkIf cfg.enable {
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networking.firewall = {
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allowedUDPPorts = [ port ]; # Clients and peers can use the same port, see listenport
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};
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# Enable WireGuard
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networking.wireguard.interfaces = {
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# "wg0" is the network interface name. You can name the interface arbitrarily.
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wg0 = {
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# Determines the IP address and subnet of the client's end of the tunnel interface.
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ips = [ cfg.ip ];
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listenPort = port; # to match firewall allowedUDPPorts (without this wg uses random port numbers)
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# Path to the private key file.
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privateKeyFile = cfg.privateKeyFile;
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postSetup = "${pkgs.iproute}/bin/ip route add ${serverAddr} via ${defaultGateway}";
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postShutdown = "${pkgs.iproute}/bin/ip route del ${serverAddr} via ${defaultGateway}";
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peers = [
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# For a client configuration, one peer entry for the server will suffice.
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{
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# Public key of the server (not a file path).
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publicKey = "nFqvL30dkKkhOt+fLJ+EJNmp9GjkXVjmpz1WRI1pG0A=";
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# Forward all the traffic via VPN.
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allowedIPs = [ "0.0.0.0/0" ];
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# Or forward only particular subnets
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# allowedIPs = [ "192.168.0.0/24" ];
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# Set this to the server IP and port.
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endpoint = "${serverAddr}:${toString port}";
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# Send keepalives every 25 seconds. Important to keep NAT tables alive.
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persistentKeepalive = 25;
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}
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];
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};
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};
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};
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}
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