505 lines
16 KiB
C++
505 lines
16 KiB
C++
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//////////////////////////////////////////////////////////////////////////////
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//
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// Copyright (c) 1999-2000 Microsoft Corporation
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//
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// Module Name:
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// CClusNet.cpp
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//
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// Description:
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// Contains the definition of the CClusNet class.
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//
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// Maintained By:
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// Vij Vasu (Vvasu) 08-MAR-2000
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//
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//////////////////////////////////////////////////////////////////////////////
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//////////////////////////////////////////////////////////////////////////////
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// Include Files
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//////////////////////////////////////////////////////////////////////////////
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// The precompiled header.
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#include "pch.h"
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// The header for this file
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#include "CClusNet.h"
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extern "C"
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{
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// Required by the winsock functions
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#include <winsock2.h>
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// For the winsock MigrateWinsockConfiguration function.
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#include <wsasetup.h>
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// For the winsock WSHGetWinsockMapping function.
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#include <wsahelp.h>
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}
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// For the definition of SOCKADDR_CLUSTER
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#include <wsclus.h>
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//////////////////////////////////////////////////////////////////////////////
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// Macros
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//////////////////////////////////////////////////////////////////////////////
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// The name of the ClusNet service
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#define CLUSNET_SERVICE_NAME L"ClusNet"
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// Registry location of the ClusNet winsock entries key
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#define CLUSNET_WINSOCK_KEY L"System\\CurrentControlSet\\Services\\ClusNet\\Parameters\\Winsock"
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// Name of the ClusNet winsock mapping registry value
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#define CLUSNET_WINSOCK_MAPPING L"Mapping"
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// Name of the ClusNet winsock minimum socket address length registry value
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#define CLUSNET_WINSOCK_MINSOCKADDRLEN L"MinSockaddrLength"
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// Name of the ClusNet winsock maximum socket address length registry value
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#define CLUSNET_WINSOCK_MAXSOCKADDRLEN L"MaxSockaddrLength"
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// Name of the DLL containing the WinSock cluster helper functions
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#define WSHCLUS_DLL_NAME L"WSHClus.dll"
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// Name of the winsock parameters key.
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#define WINSOCK_PARAMS_KEY L"System\\CurrentControlSet\\Services\\WinSock\\Parameters"
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// Name of the winsock transports registry key.
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#define WINSOCK_PARAMS_TRANSPORT_VAL L"Transports"
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//////////////////////////////////////////////////////////////////////////////
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//++
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//
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// CClusNet::CClusNet()
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//
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// Description:
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// Constructor of the CClusNet class
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//
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// Arguments:
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// pbcaParentActionIn
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// Pointer to the base cluster action of which this action is a part.
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//
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// Return Value:
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// None.
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//
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// Exceptions Thrown:
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// CAssert
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// If the parameters are incorrect.
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//
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// Any exceptions thrown by underlying functions
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//
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//--
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//////////////////////////////////////////////////////////////////////////////
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CClusNet::CClusNet(
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CBaseClusterAction * pbcaParentActionIn
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)
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: m_cservClusNet( CLUSNET_SERVICE_NAME )
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, m_pbcaParentAction( pbcaParentActionIn )
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{
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BCATraceScope( "" );
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if ( m_pbcaParentAction == NULL)
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{
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BCATraceMsg( "Pointers to the parent action is NULL. Throwing exception." );
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THROW_ASSERT(
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E_INVALIDARG
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, "CClusNet::CClusNet() => Required input pointer in NULL"
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);
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} // if: the parent action pointer is NULL
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} //*** CClusNet::CClusNet()
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//////////////////////////////////////////////////////////////////////////////
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//++
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//
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// CClusNet::~CClusNet( void )
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//
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// Description:
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// Destructor of the CClusNet class.
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//
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// Arguments:
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// None.
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//
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// Return Value:
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// None.
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//
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// Exceptions Thrown:
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// Any exceptions thrown by underlying functions
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//
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//--
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//////////////////////////////////////////////////////////////////////////////
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CClusNet::~CClusNet( void )
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{
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BCATraceScope( "" );
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} //*** CClusNet::~CClusNet()
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//////////////////////////////////////////////////////////////////////////////
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//++
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//
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// void
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// CClusNet::ConfigureService()
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//
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// Description:
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// Installs the cluster network transport.
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//
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// Arguments:
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// None.
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//
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// Return Value:
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// None.
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//
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// Exceptions Thrown:
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// CRuntimeError
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// If any of the APIs fail.
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//
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// Any that are thrown by the underlying functions.
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//
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//--
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//////////////////////////////////////////////////////////////////////////////
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void
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CClusNet::ConfigureService( void )
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{
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BCATraceScope( "" );
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DWORD dwMappingSize = 0;
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DWORD dwSocketAddrLen = sizeof( SOCKADDR_CLUSTER );
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DWORD dwError = ERROR_SUCCESS;
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WSA_SETUP_DISPOSITION wsdDisposition;
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{
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CStatusReport srCreatingClusNet(
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PbcaGetParent()->PBcaiGetInterfacePointer()
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, TASKID_Major_Configure_Cluster_Services
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, TASKID_Minor_Creating_ClusNet_Service
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, 0, 1
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, IDS_TASK_CREATING_CLUSNET
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);
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LogMsg( "Creating the Cluster Network Provider." );
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// Send the next step of this status report.
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srCreatingClusNet.SendNextStep( S_OK );
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// Create the clusnet service.
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m_cservClusNet.Create( m_pbcaParentAction->HGetMainInfFileHandle() );
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LogMsg( "Setting Cluster Network Provider service parameters." );
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CRegistryKey regClusNetWinsockKey(
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HKEY_LOCAL_MACHINE
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, CLUSNET_WINSOCK_KEY
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, KEY_ALL_ACCESS
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);
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//
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// Install the cluster network provider. A part of the required registry entries have
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// already been made when the service was created.
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//
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{
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//
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// The WSHClus DLL has to be loaded dynamically. Due to the decision to put the
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// code for the client side and the server side of ClusCfg in the same DLL, we
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// cannot implicitly link to any DLL that is not present on the client side even
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// if the functions in the DLL are called only on the server side.
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//
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typedef CSmartResource<
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CHandleTrait<
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HMODULE
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, BOOL
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, FreeLibrary
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, reinterpret_cast< HMODULE >( NULL )
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>
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> SmartModuleHandle;
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// Type of the WSHGetWinsockMapping function.
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typedef DWORD ( * WSHGetWinsockMappingFunctionType )( PWINSOCK_MAPPING, DWORD );
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// Pointer to the WSHGetWinsockMapping function.
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WSHGetWinsockMappingFunctionType pWSHGetWinsockMapping;
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// Get the full path the WSHClus DLL.
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CStr strWSHClusDllPath( m_pbcaParentAction->RStrGetClusterInstallDirectory() );
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strWSHClusDllPath += L"\\" WSHCLUS_DLL_NAME;
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// Load the library and store the handle in a smart pointer for safe release.
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SmartModuleHandle smhWSHClusDll( LoadLibrary( strWSHClusDllPath.PszData() ) );
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if ( smhWSHClusDll.FIsInvalid() )
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{
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dwError = TW32( GetLastError() );
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LogMsg( "LoadLibrary() retured error %#08x trying to load '%s'. Aborting.", dwError, strWSHClusDllPath.PszData() );
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BCATraceMsg2( "LoadLibrary() retured error %#08x trying to load '%s'. Throwing an exception.", dwError, strWSHClusDllPath.PszData() );
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THROW_RUNTIME_ERROR(
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HRESULT_FROM_WIN32( dwError )
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, IDS_ERROR_CLUSNET_PROV_INSTALL
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);
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} // if: LoadLibrary failed.
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pWSHGetWinsockMapping = reinterpret_cast< WSHGetWinsockMappingFunctionType >(
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GetProcAddress( smhWSHClusDll.HHandle(), "WSHGetWinsockMapping" )
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);
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if ( pWSHGetWinsockMapping == NULL )
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{
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dwError = TW32( GetLastError() );
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BCATraceMsg1( "GetProcAddress() retured error %#08x. Throwing an exception.", dwError );
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THROW_RUNTIME_ERROR(
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HRESULT_FROM_WIN32( dwError )
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, IDS_ERROR_CLUSNET_PROV_INSTALL
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);
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} // if: GetProcAddress() failed
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// Get WinSock mapping data
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dwMappingSize = pWSHGetWinsockMapping( NULL, 0 );
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CSmartGenericPtr< CPtrTrait< WINSOCK_MAPPING > >
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swmWinSockMapping( reinterpret_cast< WINSOCK_MAPPING * >( new BYTE[ dwMappingSize ] ) );
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if ( swmWinSockMapping.FIsEmpty() )
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{
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LogMsg( "A memory allocation failure occurred while setting Cluster Network Provider service parameters." );
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BCATraceMsg1( "Could not allocate %d bytes of memory for WinSock mapping. Throwing exception.", dwMappingSize );
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THROW_RUNTIME_ERROR(
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E_OUTOFMEMORY
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, IDS_ERROR_CLUSNET_PROV_INSTALL
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);
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} // if: we could not allocate memory for the winsock mapping.
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// Get the winsock mapping.
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dwMappingSize = pWSHGetWinsockMapping( swmWinSockMapping.PMem(), dwMappingSize );
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// Write it to the registry.
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BCATraceMsg2( "Writing registry value HKLM\\%s\\%s.", CLUSNET_WINSOCK_KEY, CLUSNET_WINSOCK_MAPPING );
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regClusNetWinsockKey.SetValue(
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CLUSNET_WINSOCK_MAPPING
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, REG_BINARY
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, reinterpret_cast< const BYTE *>( swmWinSockMapping.PMem() )
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, dwMappingSize
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);
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}
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//
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// Write the minimum and maximum socket address length to the registry.
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//
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BCATraceMsg2( "Writing registry value HKLM\\%s\\%s.", CLUSNET_WINSOCK_KEY, CLUSNET_WINSOCK_MINSOCKADDRLEN );
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regClusNetWinsockKey.SetValue(
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CLUSNET_WINSOCK_MINSOCKADDRLEN
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, REG_DWORD
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, reinterpret_cast< const BYTE *>( &dwSocketAddrLen )
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, sizeof( dwSocketAddrLen )
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);
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BCATraceMsg2( "Writing registry value HKLM\\%s\\%s.", CLUSNET_WINSOCK_KEY, CLUSNET_WINSOCK_MAXSOCKADDRLEN );
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regClusNetWinsockKey.SetValue(
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CLUSNET_WINSOCK_MAXSOCKADDRLEN
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, REG_DWORD
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, reinterpret_cast< const BYTE *>( &dwSocketAddrLen )
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, sizeof( dwSocketAddrLen )
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);
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//
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// Poke winsock to update the Winsock2 config
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//
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BCATraceMsg( "About to migrate winsock configuration." );
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dwError = TW32( MigrateWinsockConfiguration( &wsdDisposition, NULL, NULL ) );
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if ( dwError != ERROR_SUCCESS )
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{
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LogMsg( "Error %#08x occurred while trying to migrate the Winsock Configuration.", dwError );
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BCATraceMsg1( "MigrateWinsockConfiguration has returned error %#08x. Throwing exception.", dwError );
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THROW_RUNTIME_ERROR(
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HRESULT_FROM_WIN32( dwError )
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, IDS_ERROR_CLUSNET_PROV_INSTALL
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);
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} // if: an error occurred poking winsock.
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// Send the last step of this status report.
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srCreatingClusNet.SendNextStep( S_OK );
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}
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{
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UINT cQueryCount = 10;
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CStatusReport srStartingClusNet(
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PbcaGetParent()->PBcaiGetInterfacePointer()
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, TASKID_Major_Configure_Cluster_Services
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, TASKID_Minor_Starting_ClusNet_Service
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, 0, cQueryCount + 2 // we will send at most cQueryCount reports while waiting for the service to start (the two extra sends are below)
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, IDS_TASK_STARTING_CLUSNET
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);
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// Send the next step of this status report.
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srStartingClusNet.SendNextStep( S_OK );
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// Start the service.
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m_cservClusNet.Start(
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m_pbcaParentAction->HGetSCMHandle()
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, true // wait for the service to start
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, 500 // wait 500ms between queries for status.
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, cQueryCount // query cQueryCount times.
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, &srStartingClusNet // status report to be sent while waiting for the service to start
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);
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// Send the last step of this status report.
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srStartingClusNet.SendLastStep( S_OK );
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}
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} //*** CClusNet::ConfigureService()
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//////////////////////////////////////////////////////////////////////////////
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//++
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//
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// void
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// CClusNet::CleanupService()
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//
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// Description:
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// Remove ClusNet from the Winsock transports list. Delete the service.
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//
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// Arguments:
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// None.
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//
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// Return Value:
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// None.
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//
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// Exceptions Thrown:
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// CRuntimeError
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// If any of the APIs fail.
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//
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// Any that are thrown by the underlying functions.
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//
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//--
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//////////////////////////////////////////////////////////////////////////////
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void
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CClusNet::CleanupService( void )
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{
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BCATraceScope( "" );
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||
|
|
DWORD dwError = ERROR_SUCCESS;
|
||
|
|
WCHAR * pmszTransportList = NULL;
|
||
|
|
DWORD cbBufSize = 0;
|
||
|
|
DWORD cbBufRemaining = 0;
|
||
|
|
UINT uiClusNetNameLenPlusOne = wcslen( CLUSNET_SERVICE_NAME ) + 1;
|
||
|
|
UINT cbClusNetNameSize = uiClusNetNameLenPlusOne * sizeof( WCHAR );
|
||
|
|
WSA_SETUP_DISPOSITION wsdDisposition;
|
||
|
|
|
||
|
|
|
||
|
|
LogMsg( "Stopping the Cluster Network Provider service." );
|
||
|
|
|
||
|
|
// Stop the service.
|
||
|
|
m_cservClusNet.Stop(
|
||
|
|
m_pbcaParentAction->HGetSCMHandle()
|
||
|
|
, 500 // wait 500ms between queries for status.
|
||
|
|
, 10 // query 10 times.
|
||
|
|
);
|
||
|
|
|
||
|
|
LogMsg( "Cleaning up the Cluster Network Provider service." );
|
||
|
|
|
||
|
|
// Clean up the ClusNet service.
|
||
|
|
m_cservClusNet.Cleanup( m_pbcaParentAction->HGetMainInfFileHandle() );
|
||
|
|
|
||
|
|
// Open the winsock registry key.
|
||
|
|
CRegistryKey regWinsockKey(
|
||
|
|
HKEY_LOCAL_MACHINE
|
||
|
|
, WINSOCK_PARAMS_KEY
|
||
|
|
, KEY_ALL_ACCESS
|
||
|
|
);
|
||
|
|
|
||
|
|
//
|
||
|
|
// Remove the cluster network provider from the Winsock transports list.
|
||
|
|
//
|
||
|
|
|
||
|
|
BCATraceMsg( "Reading the Winsock transport list." );
|
||
|
|
|
||
|
|
regWinsockKey.QueryValue(
|
||
|
|
WINSOCK_PARAMS_TRANSPORT_VAL
|
||
|
|
, reinterpret_cast< LPBYTE * >( &pmszTransportList )
|
||
|
|
, &cbBufSize
|
||
|
|
);
|
||
|
|
|
||
|
|
//
|
||
|
|
// Assign the pointer to the allocated buffer to a smart pointer for automatic
|
||
|
|
// release.
|
||
|
|
//
|
||
|
|
SmartSz sszTransports( pmszTransportList );
|
||
|
|
|
||
|
|
|
||
|
|
// Remove the string "ClusNet" from the multisz list.
|
||
|
|
BCATraceMsg( "Removing ClusNet from the Winsock transport list." );
|
||
|
|
|
||
|
|
cbBufRemaining = cbBufSize;
|
||
|
|
while ( *pmszTransportList != L'\0' )
|
||
|
|
{
|
||
|
|
UINT uiCurStrLenPlusOne = wcslen( pmszTransportList ) + 1;
|
||
|
|
|
||
|
|
// If this string is ClusNet
|
||
|
|
if ( ( uiCurStrLenPlusOne == uiClusNetNameLenPlusOne )
|
||
|
|
&& ( _wcsicmp( pmszTransportList, CLUSNET_SERVICE_NAME ) == 0 )
|
||
|
|
)
|
||
|
|
{
|
||
|
|
// Remove this string from the list
|
||
|
|
cbBufSize -= cbClusNetNameSize;
|
||
|
|
|
||
|
|
// Decrement the amount of buffer yet unparsed.
|
||
|
|
cbBufRemaining -= cbClusNetNameSize;
|
||
|
|
|
||
|
|
MoveMemory(
|
||
|
|
pmszTransportList
|
||
|
|
, pmszTransportList + uiClusNetNameLenPlusOne
|
||
|
|
, cbBufRemaining
|
||
|
|
);
|
||
|
|
} // if: this string is "ClusNet"
|
||
|
|
else
|
||
|
|
{
|
||
|
|
// Decrement the amount of buffer yet unparsed.
|
||
|
|
cbBufRemaining -= uiCurStrLenPlusOne * sizeof( *pmszTransportList );
|
||
|
|
|
||
|
|
// Move to the next string
|
||
|
|
pmszTransportList += uiCurStrLenPlusOne;
|
||
|
|
} // else: this string is not "ClusNet"
|
||
|
|
|
||
|
|
} // while: the transport list has not been completely parsed.
|
||
|
|
|
||
|
|
|
||
|
|
BCATraceMsg( "Writing the Winsock transport list back to the registry." );
|
||
|
|
|
||
|
|
// Write the new list back into the registry.
|
||
|
|
regWinsockKey.SetValue(
|
||
|
|
WINSOCK_PARAMS_TRANSPORT_VAL
|
||
|
|
, REG_MULTI_SZ
|
||
|
|
, reinterpret_cast< BYTE * >( sszTransports.PMem() )
|
||
|
|
, cbBufSize
|
||
|
|
);
|
||
|
|
|
||
|
|
//
|
||
|
|
// Poke winsock to update the Winsock2 config
|
||
|
|
//
|
||
|
|
BCATraceMsg( "About to migrate winsock configuration." );
|
||
|
|
dwError = TW32( MigrateWinsockConfiguration( &wsdDisposition, NULL, NULL ) );
|
||
|
|
|
||
|
|
if ( dwError != ERROR_SUCCESS )
|
||
|
|
{
|
||
|
|
LogMsg( "Error %#08x occurred while trying to migrate the Winsock Configuration.", dwError );
|
||
|
|
BCATraceMsg1( "MigrateWinsockConfiguration has returned error %#08x. Throwing exception.", dwError );
|
||
|
|
THROW_RUNTIME_ERROR(
|
||
|
|
HRESULT_FROM_WIN32( dwError )
|
||
|
|
, IDS_ERROR_CLUSNET_PROV_INSTALL
|
||
|
|
);
|
||
|
|
} // if: an error occurred poking winsock.
|
||
|
|
|
||
|
|
} //*** CClusNet::CleanupService()
|