system/nixos/modules/wireguard-client.nix

62 lines
1.8 KiB
Nix

{ config, lib, ... }:
let
cfg = config.local.wireguard;
serverData = import ../hosts/tatos/data.secret.nix;
serverAddr = serverData.addr;
serverPort = serverData.wireguard.port;
in
{
options.local.wireguard = with lib; {
enable = mkEnableOption "Enable wireguard vpn";
ip = mkOption {
type = types.str;
description = "10.100.0.<num>/24";
example = "10.100.0.1/24";
};
privateKeyFile = mkOption {
type = types.str;
};
};
config = lib.mkIf cfg.enable {
networking.firewall = {
allowedUDPPorts = [ serverPort ]; # Clients and peers can use the same port, see listenport
};
# Enable WireGuard
networking.wg-quick.interfaces = {
# "wg0" is the network interface name. You can name the interface arbitrarily.
wg0 = {
# Determines the IP address and subnet of the client's end of the tunnel interface.
address = [ cfg.ip ];
listenPort = serverPort; # to match firewall allowedUDPPorts (without this wg uses random port numbers)
# Path to the private key file.
privateKeyFile = cfg.privateKeyFile;
peers = [
# For a client configuration, one peer entry for the server will suffice.
{
# Public key of the server (not a file path).
publicKey = serverData.wireguard.publicKey;
# Forward all the traffic via VPN.
allowedIPs = [ "0.0.0.0/0" ];
# Or forward only particular subnets
# allowedIPs = [ "192.168.0.0/24" ];
# Set this to the server IP and port.
endpoint = "${serverAddr}:${toString serverPort}";
# Send keepalives every 25 seconds. Important to keep NAT tables alive.
persistentKeepalive = 15;
}
];
};
};
};
}