mirror of
https://github.com/rajkosto/mxoemu
synced 2026-08-14 02:26:05 -04:00
121 lines
No EOL
3.3 KiB
C++
121 lines
No EOL
3.3 KiB
C++
// *************************************************************************************************
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// --------------------------------------
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// Copyright (C) 2006-2010 Rajko Stojadinovic
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//
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2.1 of the License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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//
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// *************************************************************************************************
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#include "RemoteSocket.h"
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#include "LocalSocket.h"
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#include "Util.h"
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#include <iostream>
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#include "SequencedPacket.h"
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#include "Logging.h"
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#include "EncryptedPacket.h"
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extern LocalSocket *worldLocal;
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extern u_short GlobalPort;
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extern std::string GlobalIP;
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RemoteSocket *globalRemoteSocket = NULL;
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extern LocalSocket *globalLocalSocket;
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extern uint16 WTC_localSeq;
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extern uint16 WTC_remoteSeq;
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extern uint8 WTC_flags;
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RemoteSocket::RemoteSocket(ISocketHandler& h)
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:UdpSocket(h)
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{
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WTC_localSeq = 0;
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WTC_remoteSeq = 0;
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WTC_flags = 0;
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InitializeCriticalSection(&CriticalSection);
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}
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RemoteSocket::~RemoteSocket()
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{
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WTC_localSeq = 0;
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WTC_remoteSeq = 0;
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WTC_flags = 0;
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DeleteCriticalSection(&CriticalSection);
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}
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extern CryptoPP::CBC_Mode<CryptoPP::Twofish>::Decryption *TFDecryptWTC;
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extern CryptoPP::CBC_Mode<CryptoPP::Twofish>::Encryption *TFEncryptWTC;
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void PerformReplay( const char*p, size_t l, bool server)
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{
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if (server == false)
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{
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if (globalRemoteSocket == NULL)
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return;
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globalRemoteSocket->Replay(p,l);
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}
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else
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{
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if (globalLocalSocket == NULL)
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return;
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globalLocalSocket->Replay(p,l);
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}
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}
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void RemoteSocket::Replay( const char *p,size_t l)
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{
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if (p==NULL || l < 1)
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return;
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if (TFEncryptWTC == NULL)
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return;
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EnterCriticalSection(&CriticalSection);
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WTC_localSeq++;
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if (WTC_localSeq >= 4096)
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WTC_localSeq=0;
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SequencedPacket replayMePacket(WTC_localSeq,WTC_remoteSeq,WTC_flags,string(p,l));
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ByteBuffer replayMePlain = replayMePacket.getDataWithHeader();
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EncryptedPacket replayMeCryptor;
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replayMeCryptor.append((const byte*)replayMePlain.contents(),replayMePlain.size());
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ByteBuffer SendMe = replayMeCryptor.toCipherText(TFEncryptWTC);
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LeaveCriticalSection(&CriticalSection);
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//output to OnRawData for retesting and decomposition
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OnRawData(SendMe.contents(),SendMe.size(),NULL,97);
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}
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void RemoteSocket::OnRawData(const char *p,size_t l,struct sockaddr *sa_from,socklen_t sa_len)
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{
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if (TFDecryptWTC!=NULL && p[0]==0x01)
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{
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globalRemoteSocket = this;
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}
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EnterCriticalSection(&CriticalSection);
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string outputMe = WorldToClient(p,l);
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worldLocal->SendToBuf(GlobalIP,GlobalPort,outputMe.data(),outputMe.size());
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LeaveCriticalSection(&CriticalSection);
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} |