private internet access

common/common.nix

@@ -3,6 +3,7 @@
 {
   imports = [
     ./flakes.nix
+    ./pia.nix
     ./boot/firmware.nix
     ./boot/efi.nix
     ./boot/bios.nix

common/pia.nix

@@ -0,0 +1,97 @@
+{ config, pkgs, lib, ... }:
+
+let
+  cfg = config.pia;
+in
+{
+  options.pia = {
+    enable = lib.mkEnableOption "Enable private internet access";
+  };
+
+  config = lib.mkIf cfg.enable {
+    services.openvpn = {
+      servers = {
+        us-east = {
+          config = ''
+client
+dev tun
+proto udp
+remote us-washingtondc.privacy.network 1198
+resolv-retry infinite
+nobind
+persist-key
+persist-tun
+cipher aes-128-cbc
+auth sha1
+tls-client
+remote-cert-tls server
+
+auth-user-pass
+compress
+verb 1
+reneg-sec 0
+<crl-verify>
+-----BEGIN X509 CRL-----
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+-----END X509 CRL-----
+</crl-verify>
+
+<ca>
+-----BEGIN CERTIFICATE-----
+MIIFqzCCBJOgAwIBAgIJAKZ7D5Yv87qDMA0GCSqGSIb3DQEBDQUAMIHoMQswCQYD
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+-----END CERTIFICATE-----
+</ca>
+
+disable-occ
+auth-user-pass /secret/pia-login.conf
+          '';
+          autoStart = true;
+          up = "echo nameserver $nameserver | ${pkgs.openresolv}/sbin/resolvconf -m 0 -a $dev";
+          down = "${pkgs.openresolv}/sbin/resolvconf -d $dev";
+        };
+      };
+    };
+  };
+}