matrix: Add coturn support for calls

configuration/default.nix

@@ -1,4 +1,5 @@
 {
+  config,
   pkgs,
   lib,
   modulesPath,
@@ -50,17 +51,34 @@
     useDHCP = false;
     interfaces.eth0.useDHCP = true;
 
-    firewall.allowedTCPPorts = [
-      # http
-      80
-      443
-      # ssh
-      2222
-      # matrix
-      8448
-      # starbound
-      21025
-    ];
+    firewall = {
+      allowedTCPPorts = [
+        # http
+        80
+        443
+        # ssh
+        2222
+        # matrix
+        8448
+        # starbound
+        21025
+
+        config.services.coturn.listening-port
+        config.services.coturn.tls-listening-port
+      ];
+
+      allowedUDPPorts = [
+        config.services.coturn.listening-port
+        config.services.coturn.tls-listening-port
+      ];
+
+      allowedUDPPortRanges = [
+        {
+          from = config.services.coturn.min-port;
+          to = config.services.coturn.max-port;
+        }
+      ];
+    };
   };
 
   time.timeZone = "Europe/London";