Leaked source code of windows server 2003
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//////////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2000-2002 Microsoft Corporation
//
// Module Name:
// CTaskUpgrade.cpp
//
// Description:
// Implementation file for the CTaskUpgrade class.
//
// Header File:
// CTaskUpgrade.h
//
// Maintained By:
// David Potter (DavidP) 25-MAR-2002
// Vij Vasu (Vvasu) 18-APR-2000
//
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
// Include Files
//////////////////////////////////////////////////////////////////////////////
// Precompiled header for this DLL.
#include "Pch.h"
#include <Common.h>
// The header file for this module.
#include "CTaskUpgrade.h"
// For COM category operations
#include <comcat.h>
// To define guid values
#include <initguid.h>
// For CLSID_ClusCfgResTypeGenScript and CLSID_ClusCfgResTypeMajorityNodeSet
#include <guids.h>
// For CATID_ClusCfgStartupListeners
#include <ClusCfgGuids.h>
//////////////////////////////////////////////////////////////////////////////
// Macro Definitions
//////////////////////////////////////////////////////////////////////////////
// Needed for tracing.
DEFINE_THISCLASS( "CTaskUpgrade" )
/////////////////////////////////////////////////////////////////////////////
//++
//
// CTaskUpgrade::CTaskUpgrade
//
// Description:
// Constructor of the CTaskUpgrade class.
//
// Arguments:
// const CClusOCMApp & rAppIn
// Reference to the CClusOCMApp object that is hosting this task.
//
// Return Value:
// None.
//
//--
/////////////////////////////////////////////////////////////////////////////
CTaskUpgrade::CTaskUpgrade( const CClusOCMApp & rAppIn )
: BaseClass( rAppIn )
, m_fClusDirFound( false )
{
TraceFunc( "" );
//
// Make sure that this object is being instatiated only when required.
//
// Assert that this is an upgrade.
Assert( rAppIn.FIsUpgrade() != false );
// Assert that we will upgrade binaries only if they were previously
// installed
Assert( rAppIn.CisGetClusterInstallState() != eClusterInstallStateUnknown );
TraceFuncExit();
} //*** CTaskUpgrade::CTaskUpgrade()
/////////////////////////////////////////////////////////////////////////////
//++
//
// CTaskUpgrade::~CTaskUpgrade
//
// Description:
// Destructor of the CTaskUpgrade class.
//
// Arguments:
// None.
//
// Return Value:
// None.
//
//--
/////////////////////////////////////////////////////////////////////////////
CTaskUpgrade::~CTaskUpgrade( void )
{
TraceFunc( "" );
TraceFuncExit();
} //*** CTaskUpgrade::~CTaskUpgrade()
/////////////////////////////////////////////////////////////////////////////
//++
//
// DWORD
// CTaskUpgrade::DwOcCompleteInstallation
//
// Description:
// This is a helper function that performs some of the more common
// operations done by handlers of the OC_COMPLETE_INSTALLATION message.
//
// Registry operations, COM component registrations, creation of servies
// etc. listed in the input section are processed by this function.
// This function is meant to be called by derived classes only.
//
// Arguments:
// const WCHAR * pcszInstallSectionNameIn
// Name of the section which contains details registry entries,
// COM components, etc., that need to be set up.
//
// Return Value:
// NO_ERROR if all went well.
// Other Win32 error codes on failure.
//
//--
/////////////////////////////////////////////////////////////////////////////
DWORD
CTaskUpgrade::DwOcCompleteInstallation( const WCHAR * pcszInstallSectionNameIn )
{
TraceFunc( "" );
LogMsg( "Entering " __FUNCTION__ "()" );
DWORD dwReturnValue = NO_ERROR;
// Call the base class helper function to perform some registry and service
// related configuration from the INF file.
dwReturnValue = TW32( BaseClass::DwOcCompleteInstallation( pcszInstallSectionNameIn ) );
//
// Register the Generic Script resource type extension for cluster startup notifications
//
if ( dwReturnValue == NO_ERROR )
{
HRESULT hrTemp;
TraceFlow( "Attempting to register the Generic Script resource type extension for cluster startup notifications." );
LogMsg( "Attempting to register the Generic Script resource type extension for cluster startup notifications." );
hrTemp = THR( HrRegisterForStartupNotifications( CLSID_ClusCfgResTypeGenScript ) );
if ( FAILED( hrTemp ) )
{
// This is not a fatal error. So, log it and continue.
TraceFlow1( "Non-fatal error %#x occurred registering the Generic Script resource type extension for cluster startup notifications." , hrTemp );
LogMsg( "Non-fatal error %#x occurred registering the Generic Script resource type extension for cluster startup notifications." , hrTemp );
} // if: we could not register the Generic Script resource type extension for cluster startup notifications
else
{
TraceFlow( "Successfully registered the Generic Script resource type extension for cluster startup notifications." );
LogMsg( "Successfully registered the Generic Script resource type extension for cluster startup notifications." );
} // else: the registration was successful
} // if: the call to the base class function succeeded
//
// Register the Majority Node Set resource type extension for cluster startup notifications
//
if ( dwReturnValue == NO_ERROR )
{
HRESULT hrTemp;
TraceFlow( "Attempting to register the Majority Node Set resource type extension for cluster startup notifications." );
LogMsg( "Attempting to register the Majority Node Set resource type extension for cluster startup notifications." );
hrTemp = THR( HrRegisterForStartupNotifications( CLSID_ClusCfgResTypeMajorityNodeSet ) );
if ( FAILED( hrTemp ) )
{
// This is not a fatal error. So, log it and continue.
TraceFlow1( "Non-fatal error %#x occurred registering the Majority Node Set resource type extension for cluster startup notifications." , hrTemp );
LogMsg( "Non-fatal error %#x occurred registering the Majority Node Set resource type extension for cluster startup notifications." , hrTemp );
} // if: we could not register the Majority Node Set resource type extension for cluster startup notifications
else
{
TraceFlow( "Successfully registered the Majority Node Set resource type extension for cluster startup notifications." );
LogMsg( "Successfully registered the Majority Node Set resource type extension for cluster startup notifications." );
} // else: the registration was successful
} // if: the call to the base class function succeeded
TraceFlow1( "Return Value is %#x.", dwReturnValue );
LogMsg( "Return Value is %#x.", dwReturnValue );
RETURN( dwReturnValue );
} //*** CTaskUpgrade::DwOcCompleteInstallation()
/////////////////////////////////////////////////////////////////////////////
//++
//
// DWORD
// CTaskUpgrade::DwGetClusterServiceDirectory
//
// Description:
// This function returns a pointer to the directory in which the cluster
// service binaries are installed. This memory pointed to by this pointer
// should not be freed by the caller.
//
// Arguments:
// const WCHAR *& rpcszDirNamePtrIn
// Reference to the pointer to install directory. The caller should not
// free this memory.
//
// Return Value:
// NO_ERROR if all went well.
// Other Win32 error codes on failure.
//
//--
/////////////////////////////////////////////////////////////////////////////
DWORD
CTaskUpgrade::DwGetClusterServiceDirectory( const WCHAR *& rpcszDirNamePtrIn )
{
TraceFunc( "" );
LogMsg( "Entering " __FUNCTION__ "()" );
DWORD dwReturnValue = NO_ERROR;
// Check if we have already got the cluster service directory. If we already have,
// then return this value.
while( !m_fClusDirFound )
{
// Instantiate a smart pointer to the QUERY_SERVICE_CONFIG structure.
typedef CSmartGenericPtr< CPtrTrait< QUERY_SERVICE_CONFIG > > SmartServiceConfig;
// Connect to the Service Control Manager
SmartServiceHandle shServiceMgr( OpenSCManager( NULL, NULL, GENERIC_READ ) );
// Some arbitrary value.
DWORD cbServiceConfigBufSize = 256;
// Was the service control manager database opened successfully?
if ( shServiceMgr.HHandle() == NULL )
{
dwReturnValue = TW32( GetLastError() );
TraceFlow1( "Error %#x occurred trying to open a connection to the local service control manager.", dwReturnValue );
LogMsg( "Error %#x occurred trying to open a connection to the local service control manager.", dwReturnValue );
break;
} // if: opening the SCM was unsuccessful
// Open a handle to the Cluster Service.
SmartServiceHandle shService( OpenService( shServiceMgr, L"ClusSvc", GENERIC_READ ) );
// Was the handle to the service opened?
if ( shService.HHandle() == NULL )
{
dwReturnValue = TW32( GetLastError() );
TraceFlow1( "Error %#x occurred trying to open a handle to the cluster service.", dwReturnValue );
LogMsg( "Error %#x occurred trying to open a handle to the cluster service.", dwReturnValue );
break;
} // if: the handle could not be opened
do
{
DWORD cbRequiredSize = 0;
// Allocate memory for the service configuration info buffer. The memory is automatically freed when the
// object is destroyed.
SmartServiceConfig spscServiceConfig( reinterpret_cast< QUERY_SERVICE_CONFIG * >( new BYTE[ cbServiceConfigBufSize ] ) );
// Did the memory allocation succeed
if ( spscServiceConfig.FIsEmpty() )
{
dwReturnValue = TW32( ERROR_NOT_ENOUGH_MEMORY );
TraceFlow( "Error: There was not enough memory to get the cluster service configuration information." );
LogMsg( "Error: There was not enough memory to get the cluster service configuration information." );
break;
} // if: memory allocation failed
// Get the configuration information.
if ( QueryServiceConfig(
shService.HHandle()
, spscServiceConfig.PMem()
, cbServiceConfigBufSize
, &cbRequiredSize
)
== FALSE
)
{
dwReturnValue = GetLastError();
if ( dwReturnValue != ERROR_INSUFFICIENT_BUFFER )
{
TW32( dwReturnValue );
TraceFlow1( "Error %#x occurred trying to get the cluster service configuration information.", dwReturnValue );
LogMsg( "Error %#x occurred trying to get the cluster service configuration information.", dwReturnValue );
break;
} // if: something has really gone wrong
// We need to allocate more memory - try again
dwReturnValue = NO_ERROR;
cbServiceConfigBufSize = cbRequiredSize;
} // if: QueryServiceConfig() failed
else
{
// Find the last backslash character in the service binary path.
WCHAR * pszPathName = spscServiceConfig.PMem()->lpBinaryPathName;
WCHAR * pszLastBackslash = wcsrchr( pszPathName, L'\\' );
if ( pszLastBackslash != NULL )
{
// Terminate the string here.
*pszLastBackslash = L'\0';
} // if: we found the last backslash
// Move the service binary path to the beginning of the buffer.
MoveMemory( spscServiceConfig.PMem(), pszPathName, ( wcslen( pszPathName ) + 1 ) * sizeof( *pszPathName ) );
// Store the pointer to the buffer in the member variable and
// detach this memory from the smart pointer (this will not delete the memory).
m_sszClusterServiceDir.Assign( reinterpret_cast< WCHAR * >( spscServiceConfig.PRelease() ) );
// Indicate the we have successfully found the cluster service directory.
m_fClusDirFound = true;
break;
} // else: QueryServiceConfig() has succeeded
}
while( true ); // while: loop infinitely
// We are done
break;
}
// Initialize the output.
rpcszDirNamePtrIn = m_sszClusterServiceDir.PMem();
LogMsg( "Return Value is %#x.", dwReturnValue );
TraceFlow1( "Return Value is %#x.", dwReturnValue );
RETURN( dwReturnValue );
} //*** CTaskUpgrade::DwGetClusterServiceDirectory()
/////////////////////////////////////////////////////////////////////////////
//++
//
// HRESULT
// CTaskUpgrade::HrRegisterForStartupNotifications
//
// Description:
// This function registers a COM component for receiving cluster startup
// notifications.
//
// Arguments:
// const CLSID & rclsidComponentIn
// Reference to the CLSID of the component that is to receive cluster
// startup notifications.
//
// Return Value:
// S_OK if all went well.
// Other HRESULTS failure.
//
//--
/////////////////////////////////////////////////////////////////////////////
HRESULT
CTaskUpgrade::HrRegisterForStartupNotifications( const CLSID & rclsidComponentIn )
{
TraceFunc( "" );
LogMsg( "Entering " __FUNCTION__ "()" );
HRESULT hr = S_OK;
CoInitializeEx( NULL, COINIT_MULTITHREADED );
do
{
CSmartIfacePtr< ICatRegister > spcrCatReg;
{
ICatRegister * pcrCatReg = NULL;
hr = THR(
CoCreateInstance(
CLSID_StdComponentCategoriesMgr
, NULL
, CLSCTX_INPROC_SERVER
, __uuidof( pcrCatReg )
, reinterpret_cast< void ** >( &pcrCatReg )
)
);
if ( FAILED( hr ) )
{
LogMsg( "Error %#x occurred trying to create the StdComponentCategoriesMgr component.", hr );
TraceFlow1( "Error %#x occurred trying to create the StdComponentCategoriesMgr component.", hr );
break;
} // if: we could not create the StdComponentCategoriesMgr component
// Assign to a smart pointer for automatic release.
spcrCatReg.Attach( pcrCatReg );
}
{
CATID rgCatId[ 1 ];
rgCatId[ 0 ] = CATID_ClusCfgStartupListeners;
hr = THR(
spcrCatReg->RegisterClassImplCategories( rclsidComponentIn, ARRAYSIZE( rgCatId ), rgCatId ) );
if ( FAILED( hr ) )
{
LogMsg( "Error %#x occurred trying to register the component for cluster startup notifications.", hr );
TraceFlow1( "Error %#x occurred during the call to ICatRegister::UnRegisterClassImplCategories().", hr );
break;
} // if: we could not register the component for startup notifications
}
LogMsg( "Successfully registered for startup notifications." );
TraceFlow( "Successfully registered for startup notifications." );
}
while( false ); // dummy do-while loop to avoid gotos
CoUninitialize();
LogMsg( "Return Value is %#x.", hr );
TraceFlow1( "Return Value is %#x.", hr );
HRETURN( hr );
} //*** CTaskUpgrade::HrRegisterForStartupNotifications()