diff options
Diffstat (limited to 'third_party/libwebrtc/rtc_base/nat_types.cc')
-rw-r--r-- | third_party/libwebrtc/rtc_base/nat_types.cc | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/third_party/libwebrtc/rtc_base/nat_types.cc b/third_party/libwebrtc/rtc_base/nat_types.cc new file mode 100644 index 0000000000..9ca03608e8 --- /dev/null +++ b/third_party/libwebrtc/rtc_base/nat_types.cc @@ -0,0 +1,61 @@ +/* + * 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 "rtc_base/nat_types.h" + +#include "rtc_base/checks.h" + +namespace rtc { + +class SymmetricNAT : public NAT { + public: + bool IsSymmetric() override { return true; } + bool FiltersIP() override { return true; } + bool FiltersPort() override { return true; } +}; + +class OpenConeNAT : public NAT { + public: + bool IsSymmetric() override { return false; } + bool FiltersIP() override { return false; } + bool FiltersPort() override { return false; } +}; + +class AddressRestrictedNAT : public NAT { + public: + bool IsSymmetric() override { return false; } + bool FiltersIP() override { return true; } + bool FiltersPort() override { return false; } +}; + +class PortRestrictedNAT : public NAT { + public: + bool IsSymmetric() override { return false; } + bool FiltersIP() override { return true; } + bool FiltersPort() override { 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: + RTC_DCHECK_NOTREACHED(); + return 0; + } +} + +} // namespace rtc |