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//////////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 1999-2000 Microsoft Corporation
//
// Module Name:
// CClusDBJoin.cpp
//
// Description:
// Contains the definition of the CClusDBJoin class.
//
// Maintained By:
// Vij Vasu (Vvasu) 08-MAR-2000
//
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
// Include Files
//////////////////////////////////////////////////////////////////////////////
// The precompiled header.
#include "pch.h"
// The header for this file
#include "CClusDBJoin.h"
// For the CBaseClusterJoin class.
#include "CBaseClusterJoin.h"
// For the CImpersonateUser class.
#include "CImpersonateUser.h"
// For ClRtlGetSuiteType()
#include "clusrtl.h"
//////////////////////////////////////////////////////////////////////////////
//++
//
// CClusDBJoin::CClusDBJoin()
//
// Description:
// Constructor of the CClusDBJoin class
//
// Arguments:
// m_pcjClusterJoinIn
// Pointer to the base cluster action of which this action is a part.
//
// Return Value:
// None.
//
// Exceptions Thrown:
// Any exceptions thrown by underlying functions
//
//--
//////////////////////////////////////////////////////////////////////////////
CClusDBJoin::CClusDBJoin( CBaseClusterJoin * pcjClusterJoinIn )
: BaseClass( pcjClusterJoinIn )
, m_pcjClusterJoin( pcjClusterJoinIn )
, m_fHasNodeBeenAddedToSponsorDB( false )
{
BCATraceScope( "" );
SetRollbackPossible( true );
} //*** CClusDBJoin::CClusDBJoin()
//////////////////////////////////////////////////////////////////////////////
//++
//
// CClusDBJoin::~CClusDBJoin()
//
// Description:
// Destructor of the CClusDBJoin class.
//
// Arguments:
// None.
//
// Return Value:
// None.
//
// Exceptions Thrown:
// Any exceptions thrown by underlying functions
//
//--
//////////////////////////////////////////////////////////////////////////////
CClusDBJoin::~CClusDBJoin()
{
BCATraceScope( "" );
} //*** CClusDBJoin::~CClusDBJoin()
//////////////////////////////////////////////////////////////////////////////
//++
//
// void
// CClusDBJoin::Commit()
//
// Description:
// Create the cluster database. If anything goes wrong with the creation,
// cleanup the tasks already done.
//
// Arguments:
// None.
//
// Return Value:
// None.
//
// Exceptions Thrown:
// Any that are thrown by the contained actions.
//
//--
//////////////////////////////////////////////////////////////////////////////
void
CClusDBJoin::Commit( void )
{
BCATraceScope( "" );
// Call the base class commit method.
BaseClass::Commit();
//
// Perform a ClusDB cleanup just to make sure that we do not use some files left over
// from a previous install, aborted uninstall, etc.
//
LogMsg( "Cleaning up old cluster database files that may already exist before starting creation." );
{
CStatusReport srCleanDB(
PbcaGetParent()->PBcaiGetInterfacePointer()
, TASKID_Major_Configure_Cluster_Services
, TASKID_Minor_Cleaning_Up_Cluster_Database
, 0, 1
, IDS_TASK_CLEANINGUP_CLUSDB
);
// Send the next step of this status report.
srCleanDB.SendNextStep( S_OK );
CleanupHive();
// Send the last step of this status report.
srCleanDB.SendNextStep( S_OK );
}
try
{
// Create the cluster database
Create();
} // try:
catch( ... )
{
// If we are here, then something went wrong with the create.
BCATraceMsg( "Caught exception during commit." );
//
// Cleanup anything that the failed join might have done.
// Catch any exceptions thrown during Cleanup to make sure that there
// is no collided unwind.
//
try
{
// Cleanup the database.
Cleanup();
}
catch( ... )
{
//
// The rollback of the committed action has failed.
// There is nothing that we can do.
// We certainly cannot rethrow this exception, since
// the exception that caused the rollback is more important.
//
THR( E_UNEXPECTED );
BCATraceMsg( "Caught exception during cleanup." );
LogMsg( "THIS COMPUTER MAY BE IN AN INVALID STATE. An error has occurred during cleanup." );
} // catch: all
// Rethrow the exception thrown by commit.
throw;
} // catch: all
// If we are here, then everything went well.
SetCommitCompleted( true );
} //*** CClusDBJoin::Commit()
//////////////////////////////////////////////////////////////////////////////
//++
//
// void
// CClusDBJoin::Rollback()
//
// Description:
// Unload the cluster hive and cleanup any associated files.
//
// Arguments:
// None.
//
// Return Value:
// None.
//
// Exceptions Thrown:
// Any that are thrown by the underlying functions.
//
//--
//////////////////////////////////////////////////////////////////////////////
void
CClusDBJoin::Rollback( void )
{
BCATraceScope( "" );
// Call the base class rollback method.
BaseClass::Rollback();
// Undo the actions performed by.
Cleanup();
SetCommitCompleted( false );
} //*** CClusDBJoin::Rollback()
//////////////////////////////////////////////////////////////////////////////
//++
//
// void
// CClusDBJoin::Create()
//
// Description:
// Create the cluster database.
//
// Arguments:
// None.
//
// Return Value:
// None.
//
// Exceptions Thrown:
// CRuntimeError
// If any of the APIs fail.
//
// Any that are thrown by the called functions.
//
//--
//////////////////////////////////////////////////////////////////////////////
void
CClusDBJoin::Create( void )
{
BCATraceScope( "" );
LogMsg( "Attempting to create the cluster database required to join a cluster." );
DWORD dwError = ERROR_SUCCESS;
SmartFileHandle sfhClusDBFile;
{
//
// Get the full path and name of the cluster database file.
//
CStr strClusterHiveFileName( PbcaGetParent()->RStrGetClusterInstallDirectory() );
strClusterHiveFileName += L"\\" CLUSTER_DATABASE_NAME;
BCATraceMsg1( "The cluster hive backing file is '%s'.", strClusterHiveFileName.PszData() );
//
// Create the cluster database file.
//
sfhClusDBFile.Assign(
CreateFile(
strClusterHiveFileName.PszData()
, GENERIC_READ | GENERIC_WRITE
, 0
, NULL
, CREATE_ALWAYS
, 0
, NULL
)
);
if ( sfhClusDBFile.FIsInvalid() )
{
dwError = TW32( GetLastError() );
LogMsg( "Error %#08x occurred trying to create the cluster database file.", dwError );
BCATraceMsg1( "Error %#08x occurred trying to create the cluster database file. Throwing exception.", dwError );
THROW_RUNTIME_ERROR( HRESULT_FROM_WIN32( dwError ), IDS_ERROR_JOIN_SYNC_DB );
} // if: CreateFile() failed
// Store the file handle just obtained in a member variable so that it can be used during Synchronize()
// Note, this file is closed when sfhClusDBFile goes out of scope, so m_hClusDBFile should not be used
// outside this function or any function that this function calls.
m_hClusDBFile = sfhClusDBFile.HHandle();
}
//
// In the scope below, the cluster service account is impersonated, so that we can communicate with the
// sponsor cluster
//
{
BCATraceMsg( "Attempting to impersonate the cluster service account." );
// Impersonate the cluster service account, so that we can contact the sponsor cluster.
// The impersonation is automatically ended when this object is destroyed.
CImpersonateUser ciuImpersonateClusterServiceAccount( m_pcjClusterJoin->HGetClusterServiceAccountToken() );
// Add this node to the sponsor cluster database
do
{
DWORD dwSuiteType = ClRtlGetSuiteType();
m_fHasNodeBeenAddedToSponsorDB = false;
BCATraceMsg2( "Trying to add node '%s' (suite type %d) to the sponsor cluster database.",
m_pcjClusterJoin->PszGetNodeName()
, dwSuiteType
);
dwError = TW32( JoinAddNode3(
m_pcjClusterJoin->RbhGetJoinBindingHandle()
, m_pcjClusterJoin->PszGetNodeName()
, m_pcjClusterJoin->DwGetNodeHighestVersion()
, m_pcjClusterJoin->DwGetNodeLowestVersion()
, dwSuiteType
) );
if ( dwError != ERROR_SUCCESS )
{
BCATraceMsg( "JoinAddNode3 has failed." );
break;
} // if: JoinAddNode3() failed
// Set the flag that indicates that the sponsor database has been modified, so that
// we can undo this if we need to rollback or cleanup.
m_fHasNodeBeenAddedToSponsorDB = true;
}
while( false ); // dummy do while loop to avoid gotos.
if ( dwError != ERROR_SUCCESS )
{
LogMsg( "Error %#08x occurred trying to add this node to the sponsor cluster database.", dwError );
BCATraceMsg1( "Error %#08x occurred trying to add this node to the sponsor cluster database. Throwing exception.", dwError );
THROW_RUNTIME_ERROR( HRESULT_FROM_WIN32( dwError ), IDS_ERROR_JOINING_SPONSOR_DB );
} // if: something has gone wrong
BCATraceMsg( "This node has been successfully added to the sponsor cluster database." );
// Get the node id of the newly formed node.
do
{
// Smart handle to sponsor cluster
SmartClusterHandle schSponsorCluster;
// Smart handle to this node
SmartNodeHandle snhThisNodeHandle;
//
// Get a handle to the sponsor cluster.
//
{
BCATraceMsg( "Trying to open a handle to the sponsor cluster." );
// Open a handle to the sponsor cluster.
HCLUSTER hSponsorCluster = OpenCluster( m_pcjClusterJoin->RStrGetClusterBindingString().PszData() );
// Assign it to a smart handle for safe release.
schSponsorCluster.Assign( hSponsorCluster );
}
// Did we succeed in opening a handle to the sponsor cluster?
if ( schSponsorCluster.FIsInvalid() )
{
dwError = TW32( GetLastError() );
BCATraceMsg( "An error occurred trying to open a handle to the sponsor cluster." );
break;
} // if: OpenCluster() failed
//
// Get a handle to this node.
//
{
BCATraceMsg( "Trying to open a handle to this node." );
// Open a handle to this node.
HNODE hThisNode = OpenClusterNode( schSponsorCluster.HHandle(), m_pcjClusterJoin->PszGetNodeName() );
// Assign it to a smart handle for safe release.
snhThisNodeHandle.Assign( hThisNode );
}
// Did we succeed in opening a handle to this node?
if ( snhThisNodeHandle.FIsInvalid() )
{
dwError = TW32( GetLastError() );
BCATraceMsg( "An error occurred trying to open a handle to this node." );
break;
} // if: OpenClusterNode() failed
// Get the node id string.
{
DWORD cchIdSize = 0;
SmartSz sszNodeId;
dwError = GetClusterNodeId(
snhThisNodeHandle.HHandle()
, NULL
, &cchIdSize
);
if ( ( dwError != ERROR_SUCCESS ) && ( dwError != ERROR_MORE_DATA ) )
{
TW32( dwError );
BCATraceMsg( "GetClusterNodeId() could not get the required length of the node id buffer.");
break;
} // if: GetClusterNodeId() failed
// cchIdSize returned by the above call is the count of characters and does not include the space for
// the terminating NULL.
++cchIdSize;
sszNodeId.Assign( new WCHAR[ cchIdSize ] );
if ( sszNodeId.FIsEmpty() )
{
dwError = TW32( ERROR_OUTOFMEMORY );
BCATraceMsg1( "A memory allocation failure occurred trying to allocate %d characters.", cchIdSize );
break;
} // if: memory allocation failed
dwError = TW32( GetClusterNodeId(
snhThisNodeHandle.HHandle()
, sszNodeId.PMem()
, &cchIdSize
) );
if ( dwError != ERROR_SUCCESS )
{
BCATraceMsg( "GetClusterNodeId() failed to get the node id of this node.");
break;
} // if: GetClusterNodeId() failed
BCATraceMsg1( "The node id of this node is '%s'.", sszNodeId.PMem() );
// Set the node id for later use.
m_pcjClusterJoin->SetNodeIdString( sszNodeId.PMem() );
}
}
while( false ); // dummy do while loop to avoid gotos.
if ( dwError != ERROR_SUCCESS )
{
LogMsg( "Error %#08x occurred trying to get the node id of this node.", dwError );
BCATraceMsg1( "Error %#08x occurred trying to get the node id of this node. Throwing exception.", dwError );
THROW_RUNTIME_ERROR( HRESULT_FROM_WIN32( dwError ), IDS_ERROR_GET_NEW_NODE_ID );
} // if: something has gone wrong
{
CStatusReport srSyncDB(
PbcaGetParent()->PBcaiGetInterfacePointer()
, TASKID_Major_Configure_Cluster_Services
, TASKID_Minor_Join_Sync_Cluster_Database
, 0, 1
, IDS_TASK_JOIN_SYNC_CLUSDB
);
// Send the next step of this status report.
srSyncDB.SendNextStep( S_OK );
// Synchronize the cluster database.
Synchronize();
// Send the last step of this status report.
srSyncDB.SendNextStep( S_OK );
}
}
LogMsg( "The cluster database has been successfully created and synchronized with the sponsor cluster." );
} //*** CClusDBJoin::Create()
//////////////////////////////////////////////////////////////////////////////
//++
//
// void
// CClusDBJoin::Cleanup()
//
// Description:
// Cleanup the effects of Create()
//
// Arguments:
// None.
//
// Return Value:
// None.
//
// Exceptions Thrown:
// CRuntimeError
// If any of the APIs fail.
//
// Any that are thrown by the called functions.
//
//--
//////////////////////////////////////////////////////////////////////////////
void
CClusDBJoin::Cleanup( void )
{
BCATraceScope( "" );
LogMsg( "Attempting to cleanup the cluster database." );
DWORD dwError = ERROR_SUCCESS;
//
// Check if we added this node to the sponsor cluster database. If so, remove it from there.
//
if ( m_fHasNodeBeenAddedToSponsorDB )
{
BCATraceMsg( "Attempting to impersonate the cluster service account." );
// Impersonate the cluster service account, so that we can contact the sponsor cluster.
// The impersonation is automatically ended when this object is destroyed.
CImpersonateUser ciuImpersonateClusterServiceAccount( m_pcjClusterJoin->HGetClusterServiceAccountToken() );
// Remove this node from the sponsor cluster database
do
{
// Smart handle to sponsor cluster
SmartClusterHandle schSponsorCluster;
// Smart handle to this node
SmartNodeHandle snhThisNodeHandle;
//
// Get a handle to the sponsor cluster.
//
{
BCATraceMsg( "Trying to open a handle to the sponsor cluster." );
// Open a handle to the sponsor cluster.
HCLUSTER hSponsorCluster = OpenCluster( m_pcjClusterJoin->RStrGetClusterBindingString().PszData() );
// Assign it to a smart handle for safe release.
schSponsorCluster.Assign( hSponsorCluster );
}
// Did we succeed in opening a handle to the sponsor cluster?
if ( schSponsorCluster.FIsInvalid() )
{
dwError = TW32( GetLastError() );
BCATraceMsg( "An error occurred trying to open a handle to the sponsor cluster." );
break;
} // if: OpenCluster() failed
//
// Get a handle to this node.
//
{
BCATraceMsg( "Trying to open a handle to this node." );
// Open a handle to this node.
HNODE hThisNode = OpenClusterNode( schSponsorCluster.HHandle(), m_pcjClusterJoin->PszGetNodeName() );
if ( hThisNode == NULL )
{
dwError = TW32( GetLastError() );
BCATraceMsg( "An error has occurred trying to open a handle to this node." );
break;
} // if: OpenClusterNode() failed.
// Assign it to a smart handle for safe release.
snhThisNodeHandle.Assign( hThisNode );
}
dwError = TW32( EvictClusterNode( snhThisNodeHandle.HHandle() ) );
if ( dwError != ERROR_SUCCESS )
{
BCATraceMsg( "An error has occurred trying to evict this node from the sponsor cluster." );
break;
} // if: EvictClusterNode() failed
}
while( false ); // dummy do while loop to avoid gotos.
if ( dwError != ERROR_SUCCESS )
{
LogMsg( "Error %#08x occurred trying to remove this node from the sponsor cluster database.", dwError );
BCATraceMsg1( "Error %#08x occurred trying to remove this node from the sponsor cluster database. Throwing exception.", dwError );
THROW_RUNTIME_ERROR( HRESULT_FROM_WIN32( dwError ), IDS_ERROR_EVICTING_NODE );
} // if: something has gone wrong
BCATraceMsg( "This node has been successfully removed from the sponsor cluster database." );
} // if: we had added this node to the sponsor cluster database
// Cleanup the cluster hive
CleanupHive();
} //*** Cleanup()
//////////////////////////////////////////////////////////////////////////////
//++
//
// void
// CClusDBJoin::Synchronize()
//
// Description:
// Synchronize the cluster database with the sponsor cluster.
//
// Arguments:
// None.
//
// Return Value:
// None.
//
// Exceptions Thrown:
// CRuntimeError
// If any of the APIs fail.
//
// Any that are thrown by the called functions.
//
//--
//////////////////////////////////////////////////////////////////////////////
void
CClusDBJoin::Synchronize( void )
{
BCATraceScope( "" );
LogMsg( "Attempting to synchronize the cluster database with the sponsor cluster." );
DWORD dwError = ERROR_SUCCESS;
do
{
//
// Initialize the byte pipe.
//
m_bpBytePipe.state = reinterpret_cast< char * >( this );
m_bpBytePipe.alloc = S_BytePipeAlloc;
m_bpBytePipe.push = S_BytePipePush;
m_bpBytePipe.pull = S_BytePipePull;
//
// Synchronize the database
//
dwError = TW32( DmSyncDatabase( m_pcjClusterJoin->RbhGetJoinBindingHandle(), m_bpBytePipe ) );
if ( dwError != ERROR_SUCCESS )
{
BCATraceMsg( "An error occurred trying to suck the database down from the sponsor cluster." );
break;
} // if: DmSyncDatabase() failed
}
while( false ); // Dummy do-while loop to avoid gotos.
if ( dwError != ERROR_SUCCESS )
{
LogMsg( "Error %#08x occurred trying to synchronize the cluster database with the sponsor cluster.", dwError );
BCATraceMsg1( "Error %#08x occurred trying trying to synchronize the cluster database with the sponsor cluster. Throwing exception.", dwError );
THROW_RUNTIME_ERROR( HRESULT_FROM_WIN32( dwError ), IDS_ERROR_JOIN_SYNC_DB );
} // if: something has gone wrong
LogMsg( "The cluster database has been synchronized with the sponsor cluster." );
} //*** Synchronize()
//////////////////////////////////////////////////////////////////////////////
//++
//
// static void
// CClusDBJoin::S_BytePipePush()
//
// Description:
// Callback function used by RPC to push data.
//
// Arguments:
// pchStateIn
// State of the byte pipe
//
// pchBufferIn
// ulBufferSizeIn
// Buffer contained the pushed data and its size.
//
// Return Value:
// None.
//
// Exceptions Thrown:
// RPC Exceptions.
//
//--
//////////////////////////////////////////////////////////////////////////////
void
CClusDBJoin::S_BytePipePush(
char * pchStateIn
, unsigned char * pchBufferIn
, unsigned long ulBufferSizeIn
)
{
CClusDBJoin * pThis = reinterpret_cast< CClusDBJoin * >( pchStateIn );
if ( ulBufferSizeIn != 0 )
{
DWORD dwBytesWritten;
if ( WriteFile(
pThis->m_hClusDBFile
, pchBufferIn
, ulBufferSizeIn
, &dwBytesWritten
, NULL
)
== 0
)
{
DWORD dwError = GetLastError();
RpcRaiseException( dwError );
} // if: WriteFile() failed
} // if: the buffer is non-empty
} //*** CClusDBJoin::S_BytePipePush()
//////////////////////////////////////////////////////////////////////////////
//++
//
// static void
// CClusDBJoin::S_BytePipePull()
//
// Description:
// Callback function used by RPC to pull data.
//
// Arguments:
// pchStateIn
// State of the byte pipe
//
// pchBufferIn
// ulBufferSizeIn
// Buffer contained the pushed data and its size.
//
// pulWrittenOut
// Pointer to the number of bytes actually filled into the buffer.
//
// Return Value:
// None.
//
// Exceptions Thrown:
// RPC Exceptions.
//
//--
//////////////////////////////////////////////////////////////////////////////
void
CClusDBJoin::S_BytePipePull(
char * pchStateIn
, unsigned char * pchBufferIn
, unsigned long ulBufferSizeIn
, unsigned long * pulWrittenOut
)
{
CClusDBJoin * pThis = reinterpret_cast< CClusDBJoin * >( pchStateIn );
if ( ulBufferSizeIn != 0 )
{
if ( ReadFile(
pThis->m_hClusDBFile
, pchBufferIn
, ulBufferSizeIn
, pulWrittenOut
, NULL
)
== 0
)
{
DWORD dwError = TW32( GetLastError() );
RpcRaiseException( dwError );
} // if: ReadFile() failed
} // if: the buffer is non-empty
} //*** CClusDBJoin::S_BytePipePull()
//////////////////////////////////////////////////////////////////////////////
//++
//
// static void
// CClusDBJoin::S_BytePipeAlloc()
//
// Description:
// Callback function used by RPC to allocate a buffer.
//
// Arguments:
// pchStateIn
// State of the file pipe
//
// ulRequestedSizeIn
// Requested size of the buffer
// ppchBufferOut
// Pointer to the buffer pointer
//
// pulActualSizeOut
// Pointer to the actual size of the allocated buffer
//
// Return Value:
// None.
//
// Exceptions Thrown:
// None.
//
//--
//////////////////////////////////////////////////////////////////////////////
void
CClusDBJoin::S_BytePipeAlloc(
char * pchStateIn
, unsigned long ulRequestedSizeIn
, unsigned char ** ppchBufferOut
, unsigned long * pulActualSizeOut
)
{
CClusDBJoin * pThis = reinterpret_cast< CClusDBJoin * >( pchStateIn );
*ppchBufferOut = reinterpret_cast< unsigned char * >( pThis->m_rgbBytePipeBuffer );
*pulActualSizeOut = ( ulRequestedSizeIn < pThis->ms_nFILE_PIPE_BUFFER_SIZE ) ? ulRequestedSizeIn : pThis->ms_nFILE_PIPE_BUFFER_SIZE;
} //*** CClusDBJoin::S_BytePipeAlloc()