Redefine generic Session.serverConfiguration()

For reuse in Session implementations.

TunnelKit/Sources/Core/Session.swift

@@ -70,6 +70,13 @@ public protocol Session {
      */
     func dataCount() -> (Int, Int)?
     
+    /**
+     Returns the current server configuration.
+
+     - Returns: The current server configuration, represented as a generic object.
+     */
+    func serverConfiguration() -> Any?
+
     /**
      Shuts down the session with an optional `Error` reason. Does nothing if the session is already stopped or about to stop.
      

TunnelKit/Sources/Protocols/OpenVPN/AppExtension/OpenVPNTunnelProvider.swift

@@ -293,7 +293,7 @@ open class OpenVPNTunnelProvider: NEPacketTunnelProvider {
             }
             
         case .serverConfiguration:
-            if let cfg = session?.serverConfiguration() {
+            if let cfg = session?.serverConfiguration() as? OpenVPN.Configuration {
                 let encoder = JSONEncoder()
                 response = try? encoder.encode(cfg)
             }

TunnelKit/Sources/Protocols/OpenVPN/OpenVPNSession.swift

@@ -309,7 +309,7 @@ public class OpenVPNSession: Session {
         return controlChannel.currentDataCount()
     }
     
-    public func serverConfiguration() -> OpenVPN.Configuration? {
+    public func serverConfiguration() -> Any? {
         return pushReply?.options
     }