80 lines
3.5 KiB
C++
80 lines
3.5 KiB
C++
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/*
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* Copyright (c) 2014, Oculus VR, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*
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*/
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/// \defgroup NAT_TYPE_DETECTION_GROUP NatTypeDetection
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/// \brief Use a remote server with multiple IP addresses to determine what type of NAT your router is using
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/// \details
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/// \ingroup PLUGINS_GROUP
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#ifndef __NAT_TYPE_DETECTION_COMMON_H
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#define __NAT_TYPE_DETECTION_COMMON_H
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#include "NativeFeatureIncludes.hpp"
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#if _RAKNET_SUPPORT_NatTypeDetectionServer==1 || _RAKNET_SUPPORT_NatTypeDetectionClient==1
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#include "SocketIncludes.hpp"
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#include "RakNetTypes.hpp"
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#include "RakNetSocket2.hpp"
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namespace RakNet
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{
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/// All possible types of NATs (except NAT_TYPE_COUNT, which is an internal value)
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enum NATTypeDetectionResult
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{
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/// Works with anyone
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NAT_TYPE_NONE,
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/// Accepts any datagrams to a port that has been previously used. Will accept the first datagram from the remote peer.
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NAT_TYPE_FULL_CONE,
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/// Accepts datagrams to a port as long as the datagram source IP address is a system we have already sent to. Will accept the first datagram if both systems send simultaneously. Otherwise, will accept the first datagram after we have sent one datagram.
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NAT_TYPE_ADDRESS_RESTRICTED,
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/// Same as address-restricted cone NAT, but we had to send to both the correct remote IP address and correct remote port. The same source address and port to a different destination uses the same mapping.
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NAT_TYPE_PORT_RESTRICTED,
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/// A different port is chosen for every remote destination. The same source address and port to a different destination uses a different mapping. Since the port will be different, the first external punchthrough attempt will fail. For this to work it requires port-prediction (MAX_PREDICTIVE_PORT_RANGE>1) and that the router chooses ports sequentially.
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NAT_TYPE_SYMMETRIC,
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/// Hasn't been determined. NATTypeDetectionClient does not use this, but other plugins might
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NAT_TYPE_UNKNOWN,
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/// In progress. NATTypeDetectionClient does not use this, but other plugins might
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NAT_TYPE_DETECTION_IN_PROGRESS,
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/// Didn't bother figuring it out, as we support UPNP, so it is equivalent to NAT_TYPE_NONE. NATTypeDetectionClient does not use this, but other plugins might
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NAT_TYPE_SUPPORTS_UPNP,
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/// \internal Must be last
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NAT_TYPE_COUNT
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};
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/// \return Can one system with NATTypeDetectionResult \a type1 connect to \a type2
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bool RAK_DLL_EXPORT CanConnect(NATTypeDetectionResult type1, NATTypeDetectionResult type2);
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/// Return a technical string representin the enumeration
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RAK_DLL_EXPORT const char * NATTypeDetectionResultToString(NATTypeDetectionResult type);
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/// Return a friendly string representing the enumeration
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/// None and relaxed can connect to anything
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/// Moderate can connect to moderate or less
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/// Strict can connect to relaxed or less
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RAK_DLL_EXPORT const char * NATTypeDetectionResultToStringFriendly(NATTypeDetectionResult type);
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/// \internal
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RAK_DLL_EXPORT RakNetSocket2* CreateNonblockingBoundSocket(const char *bindAddr
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#ifdef __native_client__
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,_PP_Instance_ chromeInstance
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#endif
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, RNS2EventHandler *eventHandler
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);
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/// \internal
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//int NatTypeRecvFrom(char *data, RakNetSocket2* socket, SystemAddress &sender, RNS2EventHandler *eventHandler);
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}
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#endif // #if _RAKNET_SUPPORT_NatTypeDetectionServer==1 || _RAKNET_SUPPORT_NatTypeDetectionClient==1
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#endif
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