1 files changed, 64 insertions, 0 deletions
diff --git a/hosts/sagittarius/network.nix b/hosts/sagittarius/network.nix
new file mode 100644
index 0000000..9612011
--- /dev/null
+++ b/hosts/sagittarius/network.nix
@@ -0,0 +1,64 @@
+{ config, ... }:
+let
+  # NOTE: port is the same on every host
+  wgPort = 51820;
+in
+{
+  networking = {
+    hostName = "sagittarius";
+    useNetworkd = true;
+    firewall = {
+      allowedTCPPorts = [ 22 ];
+      allowedUDPPorts = [ wgPort ];
+    };
+  };
+
+  systemd.network = {
+    enable = true;
+
+    networks = {
+      "10-wan" = {
+        matchConfig.Name = "enp1s0";
+        networkConfig.DHCP = "ipv4";
+        address = [ "2a01:4f9:c012:c7a7::1/64" ];
+        routes = [ { Gateway = "fe80::1"; } ];
+      };
+      "50-wg" = {
+        matchConfig.Name = "wg0";
+        address = [
+          "2301:db8:acad:a::1/128"
+          "192.168.23.1/32"
+        ];
+      };
+    };
+
+    netdevs."50-wg" = {
+      netdevConfig = {
+        Kind = "wireguard";
+        Name = "wg0";
+      };
+
+      wireguardConfig = {
+        ListenPort = wgPort;
+        PrivateKeyFile = config.sops.secrets."wg-priv-key".path;
+        # To automatically create routes for everything in AllowedIPs,
+        # add RouteTable=main
+        RouteTable = "main";
+        # FirewallMark marks all packets send and received by wg0 with the
+        # number 42, which can be used to define policy rules on these packets.
+        FirewallMark = 42;
+      };
+
+      wireguardPeers = [
+        {
+          # nyaan
+          PublicKey = "u5nh+YNV84IbS7g0ncfs/V+cqEudNh500LQ7pmdS7j0=";
+          AllowedIPs = [
+            "2301:db8:acad:a::2/128"
+            "192.168.23.2/32"
+          ];
+        }
+      ];
+    };
+  };
+}