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650 lines
23 KiB
650 lines
23 KiB
//////////////////////////////////////////////////////////////////////////////
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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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// CService.cpp
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//
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// Description:
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// Contains the definition of the CService 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 file for this class.
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#include "CService.h"
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// For the CStr class.
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#include "CStr.h"
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// For the CStatusReport class
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#include "CStatusReport.h"
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//////////////////////////////////////////////////////////////////////////////
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// Macros
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//////////////////////////////////////////////////////////////////////////////
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// String added to end of service name to get INF file section for create
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#define SERVICE_CREATE_SECTION_SUFFIX L"_Create"
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// String added to end of service name to get INF file section for cleanup
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#define SERVICE_CLEANUP_SECTION_SUFFIX L"_Cleanup"
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//////////////////////////////////////////////////////////////////////////////
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//++
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//
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// void
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// CService::Create()
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//
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// Description:
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// This function creates an entry for the service with the SCM. It does
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// this by using the SetupAPI to process service and registry related
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// entries in a section named <ServiceName>_Create in the INF file that
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// is passed in.
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//
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// For example, if this object represents the ClusSvc service, then,
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// when this function is called, the AddService and the AddReg entries
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// under the [ClusSvc_Create] section are processed in the INF file
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// whose handle is hInfHandleIn.
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//
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// Arguments:
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// hInfHandleIn
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// Handle to the INF file that contains the required sections
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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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//--
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//////////////////////////////////////////////////////////////////////////////
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void
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CService::Create(
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HINF hInfHandleIn
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)
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{
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BCATraceScope1( "Service Name = '%s'", m_strName.PszData() );
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LogMsg( "Attempting to create the '%s' service.", m_strName.PszData() );
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DWORD dwError = ERROR_SUCCESS;
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CStr strSectionName = m_strName + SERVICE_CREATE_SECTION_SUFFIX;
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// Process the service section
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if ( SetupInstallServicesFromInfSection(
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hInfHandleIn
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, strSectionName.PszData()
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, 0
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) == FALSE
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)
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{
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dwError = TW32( GetLastError() );
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goto Cleanup;
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} // if: SetupInstallServicesFromInfSection failed
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// Process the registry keys.
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if ( SetupInstallFromInfSection(
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NULL // optional, handle of a parent window
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, hInfHandleIn // handle to the INF file
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, strSectionName.PszData() // name of the Install section
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, SPINST_REGISTRY // which lines to install from section
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, NULL // optional, key for registry installs
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, NULL // optional, path for source files
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, NULL // optional, specifies copy behavior
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, NULL // optional, specifies callback routine
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, NULL // optional, callback routine context
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, NULL // optional, device information set
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, NULL // optional, device info structure
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) == FALSE
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)
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{
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dwError = TW32( GetLastError() );
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goto Cleanup;
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} // if: SetupInstallFromInfSection failed
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LogMsg( "The '%s' service has been successfully created.", m_strName.PszData() );
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Cleanup:
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if ( dwError != ERROR_SUCCESS )
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{
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BCATraceMsg1( "Setup API returned error %#08x while trying to create the service. Throwing exception.", dwError );
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LogMsg( "Error %#08x occurred while trying to create the '%s' service.", dwError, m_strName.PszData() );
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THROW_RUNTIME_ERROR( HRESULT_FROM_WIN32( dwError ), IDS_ERROR_SERVICE_CREATE );
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}
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} //*** CService::Create()
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//////////////////////////////////////////////////////////////////////////////
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//++
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//
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// void
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// CService::Cleanup()
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//
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// Description:
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// This function cleans up a service by deregistering it with the SCM and by
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// deleting any required registry entries. It does this by using the
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// SetupAPI to process service and registry related entries in a
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// section named <ServiceName>_Cleanup in the INF file that is passed in.
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//
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// For example, if this object represents the ClusSvc service, then,
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// when this function is called, the DelService and the DelReg entries
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// under the [ClusSvc_Cleanup] section are processed in the INF file
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// whose handle is hInfHandleIn.
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//
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// Arguments:
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// hInfHandleIn
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// Handle to the INF file that contains the required sections
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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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//--
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//////////////////////////////////////////////////////////////////////////////
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void
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CService::Cleanup(
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HINF hInfHandleIn
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)
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{
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BCATraceScope1( "Service Name = '%s'", m_strName.PszData() );
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LogMsg( "Attempting to clean up the '%s' service.", m_strName.PszData() );
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DWORD dwError = ERROR_SUCCESS;
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CStr strSectionName = m_strName + SERVICE_CLEANUP_SECTION_SUFFIX;
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// Process the service section
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if ( SetupInstallServicesFromInfSection(
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hInfHandleIn
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, strSectionName.PszData()
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, 0
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) == FALSE
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)
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{
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dwError = TW32( GetLastError() );
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goto Cleanup;
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} // if: SetupInstallServicesFromInfSection failed
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// Process the registry keys.
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if ( SetupInstallFromInfSection(
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NULL // optional, handle of a parent window
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, hInfHandleIn // handle to the INF file
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, strSectionName.PszData() // name of the Install section
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, SPINST_REGISTRY // which lines to install from section
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, NULL // optional, key for registry installs
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, NULL // optional, path for source files
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, NULL // optional, specifies copy behavior
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, NULL // optional, specifies callback routine
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, NULL // optional, callback routine context
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, NULL // optional, device information set
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, NULL // optional, device info structure
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) == FALSE
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)
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{
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dwError = TW32( GetLastError() );
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goto Cleanup;
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} // if: SetupInstallFromInfSection failed
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LogMsg( "The '%s' service has been successfully cleaned up.", m_strName.PszData() );
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Cleanup:
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if ( dwError != ERROR_SUCCESS )
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{
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BCATraceMsg1( "Setup API returned error %#08x while trying to clean up the service. Throwing exception.", dwError );
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LogMsg( "Error %#08x occurred while trying to clean up the '%s' service.", dwError, m_strName.PszData() );
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THROW_RUNTIME_ERROR( HRESULT_FROM_WIN32( dwError ), IDS_ERROR_SERVICE_CLEANUP );
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}
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} //*** CService::Cleanup()
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//////////////////////////////////////////////////////////////////////////////
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//++
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//
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// void
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// CService::Start()
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//
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// Description:
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// Instructs the SCM to start the service. If fWaitForServiceStartIn is
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// true, this function tests cQueryCountIn times to see if the service has
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// started, checking every ulQueryIntervalMilliSecIn milliseconds.
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//
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// fWaitForServiceStartIn is false, this function returns immediately.
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//
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// Arguments:
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// hServiceControlManagerIn
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// Handle to the service control manager.
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//
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// fWaitForServiceStartIn
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// If true, this function waits for the service to finish starting
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// before returning. The default value is true.
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//
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// ulQueryIntervalMilliSecIn
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// Number of milliseconds between checking to see if the service
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// has started. The default value is 500 milliseconds.
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// This argument is used only if fWaitForServiceStartIn is true.
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//
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// cQueryCountIn
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// The number of times this function will query the service to see
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// if it has started. An exception is thrown if the service is not
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// running even after querying it ulQueryCountIn times. The default
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// value is 10 times.
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// This argument is used only if fWaitForServiceStartIn is true.
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//
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// pStatusReportIn
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// A pointer to the status report that should be sent while waiting for
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// the service to start. This argument is NULL by default.
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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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// CConfigError
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// If the service is not running even after the timeout has expired.
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//
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//--
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//////////////////////////////////////////////////////////////////////////////
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void
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CService::Start(
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SC_HANDLE hServiceControlManagerIn
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, bool fWaitForServiceStartIn
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, ULONG ulQueryIntervalMilliSecIn
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, UINT cQueryCountIn
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, CStatusReport * pStatusReportIn
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)
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{
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BCATraceScope1( "Service Name = '%s'", m_strName.PszData() );
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LogMsg( "Attempting to start the '%s' service.", m_strName.PszData() );
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DWORD dwError = ERROR_SUCCESS;
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bool fStarted = false; // Has the service been started?
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UINT cNumberOfQueries; // The number of times we have queried the service.
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// Handle to the service.
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SmartSCMHandle sscmhServiceHandle(
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OpenService(
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hServiceControlManagerIn
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, m_strName.PszData()
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, SERVICE_START | SERVICE_QUERY_STATUS
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)
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);
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if ( sscmhServiceHandle.FIsInvalid() )
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{
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dwError = TW32( GetLastError() );
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BCATraceMsg1( "Error %#08x occurred while trying to open the service. Throwing exception.", dwError );
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goto Cleanup;
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} // if: the handle to the service could not be opened.
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// Try and start the service.
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if ( StartService( sscmhServiceHandle.HHandle(), 0, NULL ) == 0 )
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{
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dwError = GetLastError();
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if ( dwError == ERROR_SERVICE_ALREADY_RUNNING )
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{
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BCATraceMsg( "The service is already running." );
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// The service is already running. Change the error code to success.
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dwError = ERROR_SUCCESS;
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} // if: the service is already running.
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else
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{
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TW32( dwError );
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BCATraceMsg1( "Error %#08x occurred while trying to start the service. Throwing exception.", dwError );
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}
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// There is nothing else to do.
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goto Cleanup;
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} // if: an error occurred trying to start the service.
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// If we are here, then the service may not have started yet.
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// Has the caller requested that we wait for the service to start?
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if ( ! fWaitForServiceStartIn )
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{
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LogMsg( "Not waiting to see if the service has started or not." );
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BCATraceMsg( "Not waiting to see if the service has started or not." );
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goto Cleanup;
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} // if: no waiting is required.
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// We have to wait for the service to start.
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cNumberOfQueries = 0;
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do
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{
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SERVICE_STATUS ssStatus;
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ZeroMemory( &ssStatus, sizeof( ssStatus ) );
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// Query the service for its status.
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if ( QueryServiceStatus(
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sscmhServiceHandle.HHandle()
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, &ssStatus
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)
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== 0
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)
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{
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dwError = TW32( GetLastError() );
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BCATraceMsg1( "Error %#08x occurred while trying to query service status. Throwing exception.", dwError );
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break;
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} // if: we could not query the service for its status.
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// Check if the service has posted an error.
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if ( ssStatus.dwWin32ExitCode != ERROR_SUCCESS )
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{
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dwError = TW32( ssStatus.dwWin32ExitCode );
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if ( dwError == ERROR_SERVICE_SPECIFIC_ERROR )
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{
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BCATraceMsg( "This is a service specific error code." );
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dwError = TW32( ssStatus.dwServiceSpecificExitCode );
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}
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BCATraceMsg1( "The service has returned error %#08x to query service status. Throwing exception.", dwError );
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break;
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} // if: the service itself has posted an error.
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if ( ssStatus.dwCurrentState == SERVICE_RUNNING )
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{
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fStarted = true;
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break;
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} // if: the service is running.
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++cNumberOfQueries;
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// Send a progress report if the caller had passed in a valid pointer.
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if ( pStatusReportIn != NULL )
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{
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pStatusReportIn->SendNextStep( S_OK );
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} // if: a status report needs to be sent while we wait
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// Wait for the specified time.
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Sleep( ulQueryIntervalMilliSecIn );
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}
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while ( cNumberOfQueries < cQueryCountIn ); // while: loop for the required number of queries
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if ( dwError != ERROR_SUCCESS )
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{
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goto Cleanup;
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} // if: something went wrong.
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if ( ! fStarted )
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{
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BCATraceMsg1( "The service could not be started. Throwing exception.", cQueryCountIn );
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THROW_CONFIG_ERROR( HRESULT_FROM_WIN32( TW32( ERROR_SERVICE_NOT_ACTIVE ) ), IDS_ERROR_SERVICE_START );
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} // if: the maximum number of queries have been made and the service is not running.
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Cleanup:
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if ( dwError != ERROR_SUCCESS )
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{
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LogMsg( "Error %#08x occurred trying to start the '%s' service.", dwError, m_strName.PszData() );
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THROW_RUNTIME_ERROR( HRESULT_FROM_WIN32( dwError ), IDS_ERROR_SERVICE_START );
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} // if: something has gone wrong
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else
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{
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LogMsg( "The '%s' service has been successfully started.", m_strName.PszData() );
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} // else: nothing went wrong.
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} //*** CService::Start()
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//////////////////////////////////////////////////////////////////////////////
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//++
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//
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// void
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// CService::Stop()
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//
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// Description:
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// Instructs the SCM to stop the service. If fWaitForServiceStop is
|
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// true, this function tests cQueryCountIn times to see if the service has
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// stopped, checking every ulQueryIntervalMilliSecIn milliseconds.
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//
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// Arguments:
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// hServiceControlManagerIn
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// Handle to the service control manager.
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//
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// ulQueryIntervalMilliSecIn
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// Number of milliseconds between checking to see if the service
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// has stopped. The default value is 500 milliseconds.
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//
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// cQueryCountIn
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// The number of times this function will query the service to see
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// if it has stopped. An exception is thrown if the service is not
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// running even after querying it ulQueryCountIn times. The default
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// value is 10 times.
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//
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// pStatusReportIn
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// A pointer to the status report that should be sent while waiting for
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// the service to stop. This argument is NULL by default.
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//
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// Return Value:
|
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// None.
|
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//
|
|
// Exceptions Thrown:
|
|
// CRuntimeError
|
|
// If any of the APIs fail.
|
|
//
|
|
// CConfigError
|
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// If the service has not stopped even after the timeout has expired.
|
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//
|
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//--
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
void
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CService::Stop(
|
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SC_HANDLE hServiceControlManagerIn
|
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, ULONG ulQueryIntervalMilliSecIn
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, UINT cQueryCountIn
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, CStatusReport * pStatusReportIn
|
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)
|
|
{
|
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BCATraceScope( "" );
|
|
|
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DWORD dwError = ERROR_SUCCESS;
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SERVICE_STATUS ssStatus; // The service status structure.
|
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bool fStopped = false; // Has the service been stopped?
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UINT cNumberOfQueries = 0; // The number of times we have queried the service
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// (not including the initial state query).
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LogMsg( "Attempting to stop the '%s' service.", m_strName.PszData() );
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BCATraceMsg1( "Attempting to stop the '%s' service.", m_strName.PszData() );
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|
|
// Smart handle to the service being stopped.
|
|
SmartSCMHandle sscmhServiceHandle(
|
|
OpenService(
|
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hServiceControlManagerIn
|
|
, m_strName.PszData()
|
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, SERVICE_STOP | SERVICE_QUERY_STATUS
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|
)
|
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);
|
|
|
|
// Check if we could open a handle to the service.
|
|
if ( sscmhServiceHandle.FIsInvalid() )
|
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{
|
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// We could not get a handle to the service.
|
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dwError = GetLastError();
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|
|
|
// Check if the service exists.
|
|
if ( dwError == ERROR_SERVICE_DOES_NOT_EXIST )
|
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{
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// Nothing needs to be done here.
|
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BCATraceMsg1( "The '%s' service does not exist, so it is not running. Nothing needs to be done to stop it.", m_strName.PszData() );
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LogMsg( "The '%s' service does not exist, so it is not running. Nothing needs to be done to stop it.", m_strName.PszData() );
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dwError = ERROR_SUCCESS;
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} // if: the service does not exist
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else
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{
|
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// Something else has gone wrong.
|
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TW32( dwError );
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BCATraceMsg2( "Error %#08x occurred trying to open the '%s' service.", dwError, m_strName.PszData() );
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LogMsg( "Error %#08x occurred trying to open the '%s' service.", dwError, m_strName.PszData() );
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} // else: the service exists
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goto Cleanup;
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} // if: the handle to the service could not be opened.
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|
|
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BCATraceMsg( "Querying the service for its initial state." );
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|
|
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// Query the service for its initial state.
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ZeroMemory( &ssStatus, sizeof( ssStatus ) );
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if ( QueryServiceStatus( sscmhServiceHandle.HHandle(), &ssStatus ) == 0 )
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{
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dwError = TW32( GetLastError() );
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LogMsg( "Error %#08x occurred while trying to query the initial state of the '%s' service.", dwError, m_strName.PszData() );
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BCATraceMsg2( "Error %#08x occurred while trying to query the initial state of the '%s' service.", dwError, m_strName.PszData() );
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goto Cleanup;
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} // if: we could not query the service for its status.
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|
|
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// If the service has stopped, we have nothing more to do.
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|
if ( ssStatus.dwCurrentState == SERVICE_STOPPED )
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{
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// Nothing needs to be done here.
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|
BCATraceMsg1( "The '%s' service is not running. Nothing needs to be done to stop it.", m_strName.PszData() );
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LogMsg( "The '%s' service is not running. Nothing needs to be done to stop it.", m_strName.PszData() );
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goto Cleanup;
|
|
} // if: the service has stopped.
|
|
|
|
|
|
// If we are here, the service is running.
|
|
BCATraceMsg( "The service is running." );
|
|
|
|
|
|
//
|
|
// Try and stop the service.
|
|
//
|
|
|
|
// If the service is stopping on its own, no need to send the stop control code.
|
|
if ( ssStatus.dwCurrentState == SERVICE_STOP_PENDING )
|
|
{
|
|
BCATraceMsg( "The service is stopping on its own. The stop control code will not be sent." );
|
|
} // if: the service is stopping already
|
|
else
|
|
{
|
|
BCATraceMsg( "The stop control code will be sent now." );
|
|
|
|
ZeroMemory( &ssStatus, sizeof( ssStatus ) );
|
|
if ( ControlService( sscmhServiceHandle.HHandle(), SERVICE_CONTROL_STOP, &ssStatus ) == 0 )
|
|
{
|
|
dwError = GetLastError();
|
|
if ( dwError == ERROR_SERVICE_NOT_ACTIVE )
|
|
{
|
|
LogMsg( "The '%s' service is not running. Nothing more needs to be done here.", m_strName.PszData() );
|
|
BCATraceMsg1( "The '%s' service is not running. Nothing more needs to be done here.", m_strName.PszData() );
|
|
|
|
// The service is not running. Change the error code to success.
|
|
dwError = ERROR_SUCCESS;
|
|
} // if: the service is already running.
|
|
else
|
|
{
|
|
TW32( dwError );
|
|
LogMsg( "Error %#08x occurred trying to stop the '%s' service.", dwError, m_strName.PszData() );
|
|
BCATraceMsg2( "Error %#08x occurred trying to stop the '%s' service.", dwError, m_strName.PszData() );
|
|
}
|
|
|
|
// There is nothing else to do.
|
|
goto Cleanup;
|
|
} // if: an error occurred trying to stop the service.
|
|
} // else: the service has to be instructed to stop
|
|
|
|
|
|
// Query the service for its state now and wait till the timeout expires
|
|
cNumberOfQueries = 0;
|
|
do
|
|
{
|
|
// Query the service for its status.
|
|
ZeroMemory( &ssStatus, sizeof( ssStatus ) );
|
|
if ( QueryServiceStatus( sscmhServiceHandle.HHandle(), &ssStatus ) == 0 )
|
|
{
|
|
dwError = TW32( GetLastError() );
|
|
LogMsg( "Error %#08x occurred while trying to query the state of the '%s' service.", dwError, m_strName.PszData() );
|
|
BCATraceMsg2( "Error %#08x occurred while trying to query the state of the '%s' service.", dwError, m_strName.PszData() );
|
|
break;
|
|
} // if: we could not query the service for its status.
|
|
|
|
// If the service has stopped, we have nothing more to do.
|
|
if ( ssStatus.dwCurrentState == SERVICE_STOPPED )
|
|
{
|
|
// Nothing needs to be done here.
|
|
BCATraceMsg( "The service has been stopped." );
|
|
fStopped = true;
|
|
dwError = ERROR_SUCCESS;
|
|
break;
|
|
} // if: the service has stopped.
|
|
|
|
// Check if the timeout has expired
|
|
if ( cNumberOfQueries >= cQueryCountIn )
|
|
{
|
|
BCATraceMsg( "The service stop wait timeout has expired." );
|
|
break;
|
|
} // if: number of queries has exceeded the maximum specified
|
|
|
|
BCATraceMsg2(
|
|
"Waiting for %d milliseconds before querying service status again. %d such queries remaining."
|
|
, ulQueryIntervalMilliSecIn
|
|
, cQueryCountIn - cNumberOfQueries
|
|
);
|
|
|
|
++cNumberOfQueries;
|
|
|
|
// Send a progress report if the caller had passed in a valid pointer.
|
|
if ( pStatusReportIn != NULL )
|
|
{
|
|
pStatusReportIn->SendNextStep( S_OK );
|
|
} // if: a status report needs to be sent while we wait
|
|
|
|
// Wait for the specified time.
|
|
Sleep( ulQueryIntervalMilliSecIn );
|
|
|
|
}
|
|
while( true ); // while: loop infinitely
|
|
|
|
if ( dwError != ERROR_SUCCESS )
|
|
goto Cleanup;
|
|
|
|
if ( ! fStopped )
|
|
{
|
|
dwError = TW32( ERROR_SERVICE_REQUEST_TIMEOUT );
|
|
LogMsg( "The '%s' service has not stopped even after %d queries.", m_strName.PszData(), cQueryCountIn );
|
|
BCATraceMsg2( "The '%s' service has not stopped even after %d queries.", m_strName.PszData(), cQueryCountIn );
|
|
goto Cleanup;
|
|
} // if: the maximum number of queries have been made and the service is not running.
|
|
|
|
LogMsg( "The '%s' service was successfully stopped.", m_strName.PszData() );
|
|
BCATraceMsg1( "The '%s' service was successfully stopped.", m_strName.PszData() );
|
|
|
|
Cleanup:
|
|
if ( dwError != ERROR_SUCCESS )
|
|
{
|
|
BCATraceMsg2( "Error %#08x has occurred trying to stop the '%s' service. Throwing exception.", dwError, m_strName.PszData() );
|
|
LogMsg( "Error %#08x has occurred trying to stop the '%s' service.", dwError, m_strName.PszData() );
|
|
THROW_RUNTIME_ERROR( HRESULT_FROM_WIN32( dwError ), IDS_ERROR_SERVICE_STOP );
|
|
} // if: something has gone wrong
|
|
|
|
} //*** CService::Stop()
|