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path: root/nixos/tests/wireguard/amneziawg.nix
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{
  lib,
  kernelPackages ? null,
  ...
}:
let
  wg-snakeoil-keys = import ./snakeoil-keys.nix;
  peer = import ./make-peer.nix;
  extraOptions = {
    Jc = 5;
    Jmin = 10;
    Jmax = 42;
    S1 = 60;
    S2 = 90;
  };
in
{
  name = "amneziawg";
  meta.maintainers = with lib.maintainers; [
    averyanalex
    azahi
  ];

  nodes = {
    peer0 = peer {
      ip4 = "192.168.0.1";
      ip6 = "fd00::1";
      extraConfig =
        { lib, pkgs, ... }:
        {
          boot.kernelPackages = lib.mkIf (kernelPackages != null) (kernelPackages pkgs);
          networking.firewall.allowedUDPPorts = [ 23542 ];
          networking.wireguard.interfaces.wg0 = {
            type = "amneziawg";
            ips = [
              "10.23.42.1/32"
              "fc00::1/128"
            ];
            listenPort = 23542;

            inherit (wg-snakeoil-keys.peer0) privateKey;

            peers = lib.singleton {
              allowedIPs = [
                "10.23.42.2/32"
                "fc00::2/128"
              ];

              inherit (wg-snakeoil-keys.peer1) publicKey;
            };

            inherit extraOptions;
          };
        };
    };

    peer1 = peer {
      ip4 = "192.168.0.2";
      ip6 = "fd00::2";
      extraConfig =
        { lib, pkgs, ... }:
        {
          boot.kernelPackages = lib.mkIf (kernelPackages != null) (kernelPackages pkgs);
          networking.wireguard.interfaces.wg0 = {
            type = "amneziawg";
            ips = [
              "10.23.42.2/32"
              "fc00::2/128"
            ];
            listenPort = 23542;
            allowedIPsAsRoutes = false;

            inherit (wg-snakeoil-keys.peer1) privateKey;

            peers = lib.singleton {
              allowedIPs = [
                "0.0.0.0/0"
                "::/0"
              ];
              endpoint = "192.168.0.1:23542";
              persistentKeepalive = 25;

              inherit (wg-snakeoil-keys.peer0) publicKey;
            };

            postSetup =
              let
                ip = lib.getExe' pkgs.iproute2 "ip";
              in
              ''
                ${ip} route replace 10.23.42.1/32 dev wg0
                ${ip} route replace fc00::1/128 dev wg0
              '';

            inherit extraOptions;
          };
        };
    };
  };

  testScript = ''
    start_all()

    peer0.wait_for_unit("wireguard-wg0.service")
    peer1.wait_for_unit("wireguard-wg0.service")

    peer1.succeed("ping -c5 fc00::1")
    peer1.succeed("ping -c5 10.23.42.1")
  '';
}