From 93f07176317920ee881773519ee342f9c62ab9c9 Mon Sep 17 00:00:00 2001
From: Gregor Kleen <gkleen@yggdrasil.li>
Date: Sun, 6 Feb 2022 16:42:35 +0100
Subject: sif: wgrz

---
 hosts/sif/default.nix | 99 ++++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 98 insertions(+), 1 deletion(-)

(limited to 'hosts/sif/default.nix')

diff --git a/hosts/sif/default.nix b/hosts/sif/default.nix
index 9418159c..07ba564d 100644
--- a/hosts/sif/default.nix
+++ b/hosts/sif/default.nix
@@ -1,5 +1,15 @@
 { flake, pkgs, customUtils, lib, config, path, ... }:
-{
+let
+  mwnSubnetsPublic =
+    [ "129.187.0.0/16" "141.40.0.0/16" "141.84.0.0/16"
+      "192.68.211.0/24" "192.68.212.0/24" "192.68.213.0/24" "192.68.214.0/24" "192.68.215.0/24"
+      "193.174.96.0/22"
+      "194.95.59.0/24"
+    ];
+  mwnSubnetsPrivate =
+    [ "10.153.0.0/16" "10.162.0.0/16" "10.156.0.0/16"
+    ];
+in {
   imports = with flake.nixosModules.systemProfiles; [
     ./hw.nix
     ./mail
@@ -104,6 +114,93 @@
         server=/sif.libvirt/192.168.122.1
       '';
     };
+    environment.etc."NetworkManager/dnsmasq.d/wgrz.conf" = {
+      text = ''
+        server=/mathinst.loc/10.153.88.9
+        server=/cipmath.loc/10.153.88.9
+      '';
+    };
+
+    environment.etc."systemd/networkd.conf" = {
+      text = ''
+        [Network]
+        RouteTable=wgrz:1025
+      '';
+    };
+    systemd.network = {
+      netdevs = {
+        wgrz = {
+          netdevConfig = {
+            Name = "wgrz";
+            Kind = "wireguard";
+          };
+          wireguardConfig = {
+            PrivateKeyFile = config.sops.secrets.wgrz.path;
+            ListenPort = 51822;
+            # FirewallMark = 1;
+          };
+          wireguardPeers = [
+            { wireguardPeerConfig = {
+                AllowedIPs = [ "10.200.116.1/32" ] ++ mwnSubnetsPrivate ++ mwnSubnetsPublic;
+                PublicKey = "YlRFLc+rD2k2KXl7pIJbOKbcPgdJCl8ZTsv0xlK4VEI=";
+                PersistentKeepalive = 25;
+                Endpoint = "wg.math.lmu.de:51820";
+              };
+            }
+          ];
+        };
+      };
+      networks = {
+        wgrz = {
+          name = "wgrz";
+          matchConfig = {
+            Name = "wgrz";
+          };
+          address = ["10.200.116.128/24"];
+          routes = map (Destination: { routeConfig = {
+            inherit Destination;
+            Gateway = "10.200.116.1";
+            GatewayOnLink = true;
+            Table = "wgrz";
+          };}) (mwnSubnetsPrivate ++ mwnSubnetsPublic);
+          routingPolicyRules = [
+            { routingPolicyRuleConfig = {
+                Table = "main";
+                # FirewallMark = 1;
+                To = "129.187.111.225";
+                Priority = 100;
+              };
+            }
+            { routingPolicyRuleConfig = {
+                Table = "wgrz";
+                From = "10.200.116.128";
+                Priority = 200;
+              };
+            }
+          ] ++ map (To: { routingPolicyRuleConfig = {
+                            Table = "wgrz";
+                            inherit To;
+                            Priority = 200;
+                          };}) (mwnSubnetsPrivate ++ mwnSubnetsPublic);
+          linkConfig = {
+            RequiredForOnline = false;
+          };
+          networkConfig = {
+            LLMNR = false;
+            MulticastDNS = false;
+            DNS = ["10.153.88.9" "129.187.111.202" "10.156.33.53"];
+          };
+        };
+      };
+    };
+    sops.secrets.wgrz = {
+      format = "binary";
+      sopsFile = ./wgrz/privkey;
+      mode = "0640";
+      owner = "root";
+      group = "systemd-network";
+    };
+    networking.networkmanager.unmanaged = ["wgrz"];
 
     services.resolved.enable = false;
 
-- 
cgit v1.2.3