missing files added

client/platforms/ios/tun2sockswriter.swift

@@ -0,0 +1,21 @@
+import Foundation
+import NetworkExtension
+import Tun2socks
+
+class AmneziaTun2SocksWriter: NSObject, Tun2socksTunWriterProtocol {
+    var tunnelFlow: NEPacketTunnelFlow
+
+    init( withPacketFlow nepflow: NEPacketTunnelFlow) {
+        self.tunnelFlow = nepflow
+        super.init()
+    }
+
+    func write(_ p0: Data?, n: UnsafeMutablePointer<Int>?) throws {
+        if let packets = p0 {
+            tunnelFlow.writePackets([packets], withProtocols: [NSNumber(value: PF_INET)])
+        }
+    }
+
+    func close() throws {}
+}
+