1 files changed, 55 insertions, 0 deletions
diff --git a/chromium/third_party/webrtc/base/nattypes.cc b/chromium/third_party/webrtc/base/nattypes.cc
new file mode 100644
index 00000000000..fedb78dc543
--- /dev/null
+++ b/chromium/third_party/webrtc/base/nattypes.cc
@@ -0,0 +1,55 @@
+/*
+ *  Copyright 2004 The WebRTC Project Authors. All rights reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include <assert.h>
+
+#include "webrtc/base/nattypes.h"
+
+namespace rtc {
+
+class SymmetricNAT : public NAT {
+public:
+  bool IsSymmetric() { return true; }
+  bool FiltersIP() { return true; }
+  bool FiltersPort() { return true; }
+};
+
+class OpenConeNAT : public NAT {
+public:
+  bool IsSymmetric() { return false; }
+  bool FiltersIP() { return false; }
+  bool FiltersPort() { return false; }
+};
+
+class AddressRestrictedNAT : public NAT {
+public:
+  bool IsSymmetric() { return false; }
+  bool FiltersIP() { return true; }
+  bool FiltersPort() { return false; }
+};
+
+class PortRestrictedNAT : public NAT {
+public:
+  bool IsSymmetric() { return false; }
+  bool FiltersIP() { return true; }
+  bool FiltersPort() { return true; }
+};
+
+NAT* NAT::Create(NATType type) {
+  switch (type) {
+  case NAT_OPEN_CONE:       return new OpenConeNAT();
+  case NAT_ADDR_RESTRICTED: return new AddressRestrictedNAT();
+  case NAT_PORT_RESTRICTED: return new PortRestrictedNAT();
+  case NAT_SYMMETRIC:       return new SymmetricNAT();
+  default: assert(0);       return 0;
+  }
+}
+
+} // namespace rtc