355 lines
14 KiB
C++
355 lines
14 KiB
C++
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/******************************************************************
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SrvScal.cpp -- WBEM provider class implementation
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MODULE:
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DhcpProv.dll
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DESCRIPTION:
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Contains: the definition of the DHCP_Server class,
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the static table of manageable objects.
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REVISION:
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08/03/98 - created
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******************************************************************/
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#include <stdafx.h>
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#include "SrvFn.h" // needed for the declarations of all the functions.
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#include "SrvScal.h" // own header
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// static table of CDHCP_Property objects containing the DHCP Server
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// scalar parameters (properties) which are WBEM manageable. Each object associates
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// the name of the property with their SET and GET functions.
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// *** NOTE ***
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// The name of each property has to be in sync with the ones specified in the DhcpSchema.mof.
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// The indices specified in SrvScal.h should also be in sync with the actual row from this table (they are used
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// in the property's action functions.
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static const CDHCP_Property DHCP_Server_Property[]=
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{
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CDHCP_Property(L"StartTime", fnSrvGetStartTime, NULL),
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CDHCP_Property(L"TotalNoOfAcks", fnSrvGetTotalNoOfAcks, NULL),
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CDHCP_Property(L"TotalNoOfDeclines", fnSrvGetTotalNoOfDeclines, NULL),
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CDHCP_Property(L"TotalNoOfDiscovers", fnSrvGetTotalNoOfDiscovers, NULL),
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CDHCP_Property(L"TotalNoOfNacks", fnSrvGetTotalNoOfNacks, NULL),
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CDHCP_Property(L"TotalNoOfOffers", fnSrvGetTotalNoOfOffers, NULL),
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CDHCP_Property(L"TotalNoOfReleases", fnSrvGetTotalNoOfReleases, NULL),
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CDHCP_Property(L"TotalNoOfRequests", fnSrvGetTotalNoOfRequests, NULL),
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CDHCP_Property(L"ServerVersion", fnSrvGetServerVersion, NULL),
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CDHCP_Property(L"APIProtocol", fnSrvGetAPIProtocol, fnSrvSetAPIProtocol),
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CDHCP_Property(L"DatabaseName", fnSrvGetDatabaseName, fnSrvSetDatabaseName),
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CDHCP_Property(L"DatabasePath", fnSrvGetDatabasePath, fnSrvSetDatabasePath),
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CDHCP_Property(L"BackupPath", fnSrvGetBackupPath, fnSrvSetBackupPath),
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CDHCP_Property(L"BackupInterval", fnSrvGetBackupInterval, fnSrvSetBackupInterval),
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CDHCP_Property(L"DatabaseLoggingFlag", fnSrvGetDatabaseLoggingFlag, fnSrvSetDatabaseLoggingFlag),
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CDHCP_Property(L"RestoreFlag", fnSrvGetRestoreFlag, fnSrvSetRestoreFlag),
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CDHCP_Property(L"DatabaseCleanupInterval", fnSrvGetDatabaseCleanupInterval, fnSrvSetDatabaseCleanupInterval),
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CDHCP_Property(L"DebugFlag", fnSrvGetDebugFlag, fnSrvSetDebugFlag),
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CDHCP_Property(L"PingRetries", fnSrvGetPingRetries, fnSrvSetPingRetries),
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CDHCP_Property(L"BootFileTable", fnSrvGetBootFileTable, fnSrvSetBootFileTable),
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CDHCP_Property(L"AuditLog", fnSrvGetAuditLog, fnSrvSetAuditLog)
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};
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// the name of the WBEM class
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#define PROVIDER_NAME_DHCP_SERVER "DHCP_Server"
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// main class instantiation.
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CDHCP_Server MyDHCP_Server_Scalars (PROVIDER_NAME_DHCP_SERVER, PROVIDER_NAMESPACE_DHCP) ;
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/*****************************************************************************
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*
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* FUNCTION : CDHCP_Server::CDHCP_Server
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*
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* DESCRIPTION : Constructor
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*
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* INPUTS : none
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*
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* RETURNS : nothing
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*
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* COMMENTS : Calls the Provider constructor.
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*
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*****************************************************************************/
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CDHCP_Server::CDHCP_Server (const CHString& strName, LPCSTR pszNameSpace ) :
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Provider(strName, pszNameSpace)
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{
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}
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/*****************************************************************************
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*
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* FUNCTION : CDHCP_Server::~CDHCP_Server
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*
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* DESCRIPTION : Destructor
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*
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* INPUTS : none
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*
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* RETURNS : nothing
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*
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* COMMENTS :
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*
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*****************************************************************************/
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CDHCP_Server::~CDHCP_Server ()
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{
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}
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/*****************************************************************************
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*
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* FUNCTION : CDHCP_Server::EnumerateInstances
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*
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* DESCRIPTION : Returns all the instances of this class.
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*
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* INPUTS : none
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*
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* RETURNS : WBEM_S_NO_ERROR if successful
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*
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* COMMENTS : Enumerates all this instances of this class. As there is only one
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* DHCP Server per system, there is only one instance for this class
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*
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*****************************************************************************/
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HRESULT CDHCP_Server::EnumerateInstances ( MethodContext* pMethodContext, long lFlags )
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{
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CInstance* pInstance;
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HRESULT hRes = WBEM_S_NO_ERROR;
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if ((pInstance = CreateNewInstance(pMethodContext)) != NULL &&
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LoadInstanceProperties(pInstance))
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{
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hRes = Commit(pInstance);
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}
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else
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{
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hRes = WBEM_E_OUT_OF_MEMORY;
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}
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return hRes ;
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}
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/*****************************************************************************
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*
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* FUNCTION : CDHCP_Server::GetObject
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*
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* DESCRIPTION : Find a single instance based on the key properties for the
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* class.
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*
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* INPUTS : A pointer to a CInstance object containing the key properties.
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*
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* RETURNS : WBEM_S_NO_ERROR if the instance can be found
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* WBEM_E_NOT_FOUND if the instance described by the key properties
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* could not be found
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* WBEM_E_FAILED if the instance could be found but another error
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* occurred.
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*
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* COMMENTS :
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*
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*****************************************************************************/
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HRESULT CDHCP_Server::GetObject ( CInstance* pInstance, long lFlags )
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{
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return LoadInstanceProperties(pInstance)? WBEM_S_NO_ERROR : WBEM_E_NOT_FOUND;
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}
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/*****************************************************************************
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*
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* FUNCTION : CDHCP_Server::ExecQuery
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*
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* DESCRIPTION : You are passed a method context to use in the creation of
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* instances that satisfy the query, and a CFrameworkQuery
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* which describes the query. Create and populate all
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* instances which satisfy the query. CIMOM will post -
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* filter the query for you, you may return more instances
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* or more properties than are requested and CIMOM
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* will filter out any that do not apply.
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*
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*
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* INPUTS :
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*
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* RETURNS : WBEM_E_PROVIDER_NOT_CAPABLE if not supported for this class
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* WBEM_E_FAILED if the query failed
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* WBEM_S_NO_ERROR if query was successful
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*
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* COMMENTS : TO DO: Most providers will not need to implement this method. If you don't, cimom
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* will call your enumerate function to get all the instances and perform the
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* filtering for you. Unless you expect SIGNIFICANT savings from implementing
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* queries, you should remove this entire method.
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*
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*****************************************************************************/
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HRESULT CDHCP_Server::ExecQuery (MethodContext *pMethodContext, CFrameworkQuery& Query, long lFlags)
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{
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return (WBEM_E_PROVIDER_NOT_CAPABLE);
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}
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/*****************************************************************************
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*
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* FUNCTION : CDHCP_Server::PutInstance
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*
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* DESCRIPTION : PutInstance should be used in provider classes that can write
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* instance information back to the hardware or software.
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* For example: Win32_Environment will allow a PutInstance of a new
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* environment variable, because environment variables are "software"
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* related. However, a class like Win32_MotherboardDevice will not
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* allow editing of the bus speed. Since by default PutInstance
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* returns WBEM_E_PROVIDER_NOT_CAPABLE, this function is placed here as a
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* skeleton, but can be removed if not used.
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*
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* INPUTS :
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*
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* RETURNS : WBEM_E_PROVIDER_NOT_CAPABLE if PutInstance is not available
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* WBEM_E_FAILED if there is an error delivering the instance
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* WBEM_E_INVALID_PARAMETER if any of the instance properties
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* are incorrect.
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* WBEM_S_NO_ERROR if instance is properly delivered
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*
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* COMMENTS : TO DO: If you don't intend to support writing to your provider, remove this method.
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*
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*****************************************************************************/
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HRESULT CDHCP_Server::PutInstance ( const CInstance &Instance, long lFlags)
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{
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int i;
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DWORD returnCode;
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// the object below is used as a "repository" for all the properties' values.
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// once it is filled up with data, it is commited explicitely to the DHCP Server.
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CDHCP_Server_Parameters ServerParameters;
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for (i = 0; i < NUM_SERVER_PROPERTIES; i++)
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{
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if (DHCP_Server_Property[i].m_pfnActionSet != NULL)
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{
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// execute the SET property action function
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// no data is written to DHCP Server at this moment, only ServerParameters object
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// is filled up with the values taken from the Instance.
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// don't care much here about the error codes. Failure means some properties will
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// not be written. At least we are giving a chance to all the writable properties.
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(*(DHCP_Server_Property[i].m_pfnActionSet))(&ServerParameters, (CInstance *)&Instance, NULL);
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}
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}
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// commit the values of all the writable properties to DHCP Server
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return ServerParameters.CommitSet(returnCode) ? WBEM_S_NO_ERROR : WBEM_E_FAILED;
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}
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/*****************************************************************************
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*
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* FUNCTION : CDHCP_Server::DeleteInstance
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*
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* DESCRIPTION : DeleteInstance, like PutInstance, actually writes information
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* to the software or hardware. For most hardware devices,
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* DeleteInstance should not be implemented, but for software
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* configuration, DeleteInstance implementation is plausible.
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* Like PutInstance, DeleteInstance returns WBEM_E_PROVIDER_NOT_CAPABLE from
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* inside Provider::DeleteInstance (defined in Provider.h). So, if
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* you choose not to implement DeleteInstance, remove this function
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* definition and the declaration from DHCP_Server_Scalars.h
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*
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* INPUTS :
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*
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* RETURNS : WBEM_E_PROVIDER_NOT_CAPABLE if DeleteInstance is not available.
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* WBEM_E_FAILED if there is an error deleting the instance.
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* WBEM_E_INVALID_PARAMETER if any of the instance properties
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* are incorrect.
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* WBEM_S_NO_ERROR if instance is properly deleted.
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*
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* COMMENTS : TO DO: If you don't intend to support deleting instances, remove this method.
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*
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*****************************************************************************/
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HRESULT CDHCP_Server::DeleteInstance ( const CInstance &Instance, long lFlags )
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{
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return (WBEM_E_PROVIDER_NOT_CAPABLE);
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}
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/*****************************************************************************
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*
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* FUNCTION : CDHCP_Server::ExecMethod
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*
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* DESCRIPTION : Override this function to provide support for methods.
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* A method is an entry point for the user of your provider
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* to request your class perform some function above and
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* beyond a change of state. (A change of state should be
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* handled by PutInstance() )
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*
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* INPUTS : A pointer to a CInstance containing the instance the method was executed against.
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* A string containing the method name
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* A pointer to the CInstance which contains the IN parameters.
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* A pointer to the CInstance to contain the OUT parameters.
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* A set of specialized method flags
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*
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* RETURNS : WBEM_E_PROVIDER_NOT_CAPABLE if not implemented for this class
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* WBEM_S_NO_ERROR if method executes successfully
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* WBEM_E_FAILED if error occurs executing method
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*
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* COMMENTS : TO DO: If you don't intend to support Methods, remove this method.
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*
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*****************************************************************************/
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HRESULT CDHCP_Server::ExecMethod ( const CInstance& Instance,
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const BSTR bstrMethodName,
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CInstance *pInParams,
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CInstance *pOutParams,
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long lFlags)
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{
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int nSetPrefixLen = wcslen(_SRV_SET_PREFIX);
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// is it a "SET" operation?
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if (!_wcsnicmp (bstrMethodName, _SRV_SET_PREFIX, nSetPrefixLen))
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{
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int i;
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WCHAR *wcsPropertyName = bstrMethodName + nSetPrefixLen; // pointer to the property name
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// scan the DHCP_Server_Property table looking for the property's row
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for (i = 0; i < NUM_SERVER_PROPERTIES; i++)
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{
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// if the property row is found
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if (!_wcsicmp(wcsPropertyName, DHCP_Server_Property[i].m_wsPropName))
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{
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// see if the property is writable
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if (DHCP_Server_Property[i].m_pfnActionSet != NULL)
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{
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// execute the SET property action function
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if ((*(DHCP_Server_Property[i].m_pfnActionSet))(NULL, pInParams, pOutParams))
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// everything worked fine.
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return WBEM_S_NO_ERROR;
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else
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// an error occured during "SET"
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return WBEM_E_FAILED;
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}
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else
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// no, the property cannot be written. (shouldn't really happen, as the methods from the
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// repository should match the writable properties only)
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return WBEM_E_READ_ONLY;
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}
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}
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}
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// if this point was reached, no method was found => provider not capable
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return WBEM_E_PROVIDER_NOT_CAPABLE;
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}
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/*****************************************************************************
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*
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* FUNCTION : CDHCP_Server::LoadInstanceProperties
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*
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* RETURNS : TRUE if the values for all the properties was loaded successfully,
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* FALSE otherwise.
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*
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* COMMENTS : It loops through the Server_Property table, calling the GET functions.
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*
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*****************************************************************************/
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BOOL CDHCP_Server::LoadInstanceProperties(CInstance* pInstance)
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{
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int i;
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// there should be used this object, in order to not call several times the DHCP Server API.
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CDHCP_Server_Parameters ServerParameters;
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for (i = 0; i < NUM_SERVER_PROPERTIES; i++)
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{
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// if there is an invisible property (does not support GET) just skip it.
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if (DHCP_Server_Property[i].m_pfnActionGet == NULL)
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continue;
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// call the appropriate GET function, fail if the call fails (there should be no reason for failure)
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if (!(*(DHCP_Server_Property[i].m_pfnActionGet))(&ServerParameters, NULL, pInstance))
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return FALSE;
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}
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return TRUE;
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}
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