336 lines
14 KiB
C++
336 lines
14 KiB
C++
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/******************************************************************
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SNetScal.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_Subnet 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 "props.h"
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#include "snetfn.h"
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#include "resfn.h"
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#include "srvfn.h"
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#include "anetres.h"
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// the name of the WBEM class
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#define PROVIDER_NAME_DHCP_ASSOCIATIONSUBNETRESERVATION "DHCP_SubnetReservation"
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// the names of the properties
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#define PROP_NAME_SUBNET L"Subnet"
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#define PROP_NAME_RESERVATION L"Reservation"
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// main class instantiation.
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CDHCP_AssociationSubnetToReservation MyDHCP_Association_Subnet_Reservation (PROVIDER_NAME_DHCP_ASSOCIATIONSUBNETRESERVATION, PROVIDER_NAMESPACE_DHCP) ;
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/*****************************************************************************
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*
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* FUNCTION : CDHCP_AssociationSubnetToReservation::CDHCP_AssociationSubnetToReservation
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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_AssociationSubnetToReservation::CDHCP_AssociationSubnetToReservation (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_AssociationSubnetToReservation::~CDHCP_AssociationSubnetToReservation
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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_AssociationSubnetToReservation::~CDHCP_AssociationSubnetToReservation ()
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{
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}
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/*****************************************************************************
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*
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* FUNCTION : CDHCP_AssociationSubnetToReservation::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_AssociationSubnetToReservation::EnumerateInstances ( MethodContext* pMethodContext, long lFlags )
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{
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CDHCP_Server_Parameters srvParams;
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LPDHCP_MIB_INFO pSrvMibInfo;
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if (srvParams.GetMibInfo(pSrvMibInfo, TRUE))
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{
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// loop through all the subnets configured on the local server
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for (int i = 0; i < pSrvMibInfo->Scopes; i++)
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{
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DWORD dwSubnet;
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DHCP_RESUME_HANDLE ResumeHandle;
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dwSubnet = pSrvMibInfo->ScopeInfo[i].Subnet;
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CDHCP_Reservation_Parameters resParams(dwSubnet, 0);
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ResumeHandle = 0;
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// for each subnet, loop through all the client buffers belonging to it
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do
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{
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HRESULT hRes = WBEM_S_NO_ERROR;
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// load the next buffer
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LONG t_Res = resParams.NextSubnetReservation(ResumeHandle) ;
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if ( t_Res < 0 )
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return WBEM_E_FAILED; // will fail here
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if ( t_Res == 0 )
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return WBEM_S_NO_ERROR ;
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// for the current buffer, loop through all the clients
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for (int j = 0; hRes == WBEM_S_NO_ERROR && j < resParams.m_pReservationInfoArray->NumElements; j++)
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{
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// this is finally the info of the current client
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LPDHCP_IP_RESERVATION_V4 pReservation = RESERVATION_CAST(resParams.m_pReservationInfoArray->Elements[j].Element.ReservedIp);
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WCHAR wcsSubnet[256], wcsAddress[256]; // should be enough for holding 'xxx.yyy.zzz.uuu\0'
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// build the str representation of the Subnet address
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swprintf(wcsSubnet, L"DHCP_Subnet.Address=\"%u.%u.%u.%u\"",
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(dwSubnet & 0xff000000) >> 24,
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(dwSubnet & 0x00ff0000) >> 16,
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(dwSubnet & 0x0000ff00) >> 8,
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(dwSubnet & 0x000000ff));
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// build the str representation of the ClientIpAddress address
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swprintf(wcsAddress, L"DHCP_Reservation.Subnet=\"%u.%u.%u.%u\",Address=\"%u.%u.%u.%u\"",
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(dwSubnet & 0xff000000) >> 24,
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(dwSubnet & 0x00ff0000) >> 16,
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(dwSubnet & 0x0000ff00) >> 8,
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(dwSubnet & 0x000000ff) ,
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(pReservation->ReservedIpAddress & 0xff000000) >> 24,
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(pReservation->ReservedIpAddress & 0x00ff0000) >> 16,
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(pReservation->ReservedIpAddress & 0x0000ff00) >> 8,
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(pReservation->ReservedIpAddress & 0x000000ff));
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// we finally have everything we need for the creating one more instance
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CInstance* pInstance = CreateNewInstance(pMethodContext);
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// initialize the instance with the key info and call LoadInstanceProperties for the rest of the info
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if (pInstance->SetCHString(PROP_NAME_SUBNET, wcsSubnet) &&
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pInstance->SetCHString(PROP_NAME_RESERVATION, wcsAddress))
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{
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hRes = Commit(pInstance);
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// now everything relys on the err returned above.
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}
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}
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// if there was an error above, bail
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if (hRes != WBEM_S_NO_ERROR)
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return WBEM_E_FAILED;
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} while (ResumeHandle != 0); // bail if ResumeHandle got back to 0 (the end was reached)
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}
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}
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return WBEM_S_NO_ERROR;
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}
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/*****************************************************************************
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*
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* FUNCTION : CDHCP_AssociationSubnetToReservation::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_AssociationSubnetToReservation::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_AssociationSubnetToReservation::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_AssociationSubnetToReservation::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_AssociationSubnetToReservation::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_AssociationSubnetToReservation::PutInstance ( 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_AssociationSubnetToReservation::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_AssociationSubnetToReservation::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_AssociationSubnetToReservation::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_AssociationSubnetToReservation::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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return WBEM_E_PROVIDER_NOT_CAPABLE;
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}
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/*****************************************************************************
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*
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* FUNCTION : CDHCP_AssociationSubnetToReservation::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_AssociationSubnetToReservation::LoadInstanceProperties(CInstance* pInstance)
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{
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CHString str;
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char *pAddress;
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DHCP_IP_ADDRESS dwSubnet, dwAddress;
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// at this point, the key information should be provided by the pInstance
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if (!pInstance->GetCHString (PROP_NAME_SUBNET, str ) ||
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!inet_wstodw(str, dwSubnet) ||
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!pInstance->GetCHString ( PROP_NAME_RESERVATION, str) ||
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!(pAddress = strchr ( str.GetBuffer(0), ',' )) ||
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!inet_wstodw(pAddress, dwAddress))
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return FALSE;
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CDHCP_Subnet_Parameters subnetParams(dwSubnet) ;
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CDHCP_Reservation_Parameters reservationParams(dwSubnet, dwAddress);
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LPDHCP_SUBNET_INFO pSubnetInfo;
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LPDHCP_IP_RESERVATION_V4 pReservationInfo;
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return subnetParams.GetSubnetInfo(pSubnetInfo, TRUE) && reservationParams.GetReservationInfo(pReservationInfo, TRUE);
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}
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