Tunnel: support getting runtime configuration

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2019-01-24 01:37:57 +01:00
parent ab3cbee6a2
commit 22625e8cc4
9 changed files with 278 additions and 0 deletions
@@ -397,6 +397,23 @@ class TunnelContainer: NSObject {
        super.init()
    }

+    func getRuntimeTunnelConfiguration(completionHandler: @escaping ((TunnelConfiguration?) -> Void)) {
+        guard status != .inactive, let session = tunnelProvider.connection as? NETunnelProviderSession else {
+            completionHandler(tunnelConfiguration)
+            return
+        }
+        guard nil != (try? session.sendProviderMessage(Data(bytes: [ 0 ]), responseHandler: {
+            guard self.status != .inactive, let data = $0, let base = self.tunnelConfiguration, let settings = String(data: data, encoding: .utf8) else {
+                completionHandler(self.tunnelConfiguration)
+                return
+            }
+            completionHandler((try? TunnelConfiguration(fromUapiConfig: settings, basedOn: base)) ?? self.tunnelConfiguration)
+        })) else {
+            completionHandler(tunnelConfiguration)
+            return
+        }
+    }
+
    func refreshStatus() {
        let status = TunnelStatus(from: tunnelProvider.connection.status)
        self.status = status