webrtc/rtc_base/nattypes.h
Yves Gerey 665174fdbb Reformat the WebRTC code base
Running clang-format with chromium's style guide.

The goal is n-fold:
 * providing consistency and readability (that's what code guidelines are for)
 * preventing noise with presubmit checks and git cl format
 * building on the previous point: making it easier to automatically fix format issues
 * you name it

Please consider using git-hyper-blame to ignore this commit.

Bug: webrtc:9340
Change-Id: I694567c4cdf8cee2860958cfe82bfaf25848bb87
Reviewed-on: https://webrtc-review.googlesource.com/81185
Reviewed-by: Patrik Höglund <phoglund@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#23660}
2018-06-19 14:00:39 +00:00

47 lines
1.3 KiB
C++

/*
* 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.
*/
#ifndef RTC_BASE_NATTYPES_H_
#define RTC_BASE_NATTYPES_H_
namespace rtc {
/* Identifies each type of NAT that can be simulated. */
enum NATType {
NAT_OPEN_CONE,
NAT_ADDR_RESTRICTED,
NAT_PORT_RESTRICTED,
NAT_SYMMETRIC
};
// Implements the rules for each specific type of NAT.
class NAT {
public:
virtual ~NAT() {}
// Determines whether this NAT uses both source and destination address when
// checking whether a mapping already exists.
virtual bool IsSymmetric() = 0;
// Determines whether this NAT drops packets received from a different IP
// the one last sent to.
virtual bool FiltersIP() = 0;
// Determines whether this NAT drops packets received from a different port
// the one last sent to.
virtual bool FiltersPort() = 0;
// Returns an implementation of the given type of NAT.
static NAT* Create(NATType type);
};
} // namespace rtc
#endif // RTC_BASE_NATTYPES_H_