_Use_decl_annotations_
VOID
FilterCancelOidRequest(
NDIS_HANDLE FilterModuleContext,
PVOID RequestId
)
/*++
Routine Description:
Cancels an OID request
If your filter driver does not intercept and hold onto any OID requests,
then you do not need to implement this routine. You may simply omit it.
Furthermore, if the filter only holds onto OID requests so it can pass
down a clone (the most common case) the filter does not need to implement
this routine; NDIS will then automatically request that the lower-level
filter/miniport cancel your cloned OID.
Most filters do not need to implement this routine.
Arguments:
FilterModuleContext - our filter
RequestId - identifies the request(s) to cancel
--*/
{
PMS_FILTER pFilter = (PMS_FILTER)FilterModuleContext;
PNDIS_OID_REQUEST Request = NULL;
POTLWF_REQUEST_CONTEXT Context;
PNDIS_OID_REQUEST OriginalRequest = NULL;
BOOLEAN bFalse = FALSE;
LogFuncEntryMsg(DRIVER_OID, "Filter: %p, RequestId: %p", FilterModuleContext, RequestId);
FILTER_ACQUIRE_LOCK(&pFilter->PendingOidRequestLock, bFalse);
Request = pFilter->PendingOidRequest;
if (Request != NULL)
{
Context = (POTLWF_REQUEST_CONTEXT)(&Request->SourceReserved[0]);
OriginalRequest = (*Context);
}
if ((OriginalRequest != NULL) && (OriginalRequest->RequestId == RequestId))
{
FILTER_RELEASE_LOCK(&pFilter->PendingOidRequestLock, bFalse);
NdisFCancelOidRequest(pFilter->FilterHandle, RequestId);
}
else
{
FILTER_RELEASE_LOCK(&pFilter->PendingOidRequestLock, bFalse);
}
LogFuncExit(DRIVER_OID);
}
VOID
FilterCancelOidRequest(
IN NDIS_HANDLE FilterModuleContext,
IN PVOID RequestId
)
{
PNETGW_ADAPT pAdapter = (PNETGW_ADAPT)FilterModuleContext;
PNDIS_OID_REQUEST OriginalRequest = NULL;
NdisAcquireSpinLock(&pAdapter->Lock);
OriginalRequest = pAdapter->m_IntReq.pOrigReq;
if ((OriginalRequest != NULL) && (OriginalRequest->RequestId == RequestId)) {
NdisReleaseSpinLock(&pAdapter->Lock);
NdisFCancelOidRequest(pAdapter->FilterHandle, RequestId);
}
else
NdisReleaseSpinLock(&pAdapter->Lock);
}