VOID
NTAPI
NpDeleteFcb(IN PNP_FCB Fcb,
IN PLIST_ENTRY ListEntry)
{
PNP_DCB Dcb;
PAGED_CODE();
Dcb = Fcb->ParentDcb;
if (Fcb->CurrentInstances) NpBugCheck(0, 0, 0);
NpCancelWaiter(&NpVcb->WaitQueue,
&Fcb->FullName,
STATUS_OBJECT_NAME_NOT_FOUND,
ListEntry);
RemoveEntryList(&Fcb->DcbEntry);
if (Fcb->SecurityDescriptor)
{
ObDereferenceSecurityDescriptor(Fcb->SecurityDescriptor, 1);
}
RtlRemoveUnicodePrefix(&NpVcb->PrefixTable, &Fcb->PrefixTableEntry);
ExFreePool(Fcb->FullName.Buffer);
ExFreePool(Fcb);
NpCheckForNotify(Dcb, TRUE, ListEntry);
}
VOID
NTAPI
NpDeleteCcb(IN PNP_CCB Ccb,
IN PLIST_ENTRY ListEntry)
{
PNP_ROOT_DCB_FCB RootDcbCcb;
PAGED_CODE();
RootDcbCcb = (PNP_ROOT_DCB_FCB)Ccb;
if (Ccb->NodeType == NPFS_NTC_CCB)
{
RemoveEntryList(&Ccb->CcbEntry);
--Ccb->Fcb->CurrentInstances;
NpDeleteEventTableEntry(&NpVcb->EventTable,
Ccb->NonPagedCcb->EventBuffer[FILE_PIPE_CLIENT_END]);
NpDeleteEventTableEntry(&NpVcb->EventTable,
Ccb->NonPagedCcb->EventBuffer[FILE_PIPE_SERVER_END]);
NpUninitializeDataQueue(&Ccb->DataQueue[FILE_PIPE_INBOUND]);
NpUninitializeDataQueue(&Ccb->DataQueue[FILE_PIPE_OUTBOUND]);
NpCheckForNotify(Ccb->Fcb->ParentDcb, FALSE, ListEntry);
ExDeleteResourceLite(&Ccb->NonPagedCcb->Lock);
NpUninitializeSecurity(Ccb);
if (Ccb->ClientSession)
{
ExFreePool(Ccb->ClientSession);
Ccb->ClientSession = NULL;
}
ExFreePool(Ccb->NonPagedCcb);
}
else if (RootDcbCcb->NodeType == NPFS_NTC_ROOT_DCB_CCB && RootDcbCcb->Unknown)
{
ExFreePool(RootDcbCcb->Unknown);
}
ExFreePool(Ccb);
}
NTSTATUS
NpSetPipeInfo (
IN PFCB Fcb,
IN PCCB Ccb,
IN PFILE_PIPE_INFORMATION Buffer,
IN NAMED_PIPE_END NamedPipeEnd
)
/*++
Routine Description:
This routine sets the pipe information for a named pipe.
Arguments:
Fcb - Supplies the Fcb for the named pipe being modified
Ccb - Supplies the ccb for the named pipe being modified
Buffer - Supplies the buffer containing the data being set
NamedPipeEnd - Supplies the server/client end doing the operation
Return Value:
NTSTATUS - Returns our completion status
--*/
{
PDATA_QUEUE ReadQueue;
PDATA_QUEUE WriteQueue;
UNREFERENCED_PARAMETER( Ccb );
PAGED_CODE();
DebugTrace(0, Dbg, "NpSetPipeInfo...\n", 0);
//
// If the caller requests message mode reads but the pipe is
// byte stream then its an invalid parameter
//
if ((Buffer->ReadMode == FILE_PIPE_MESSAGE_MODE) &&
(Fcb->Specific.Fcb.NamedPipeType == FILE_PIPE_BYTE_STREAM_MODE)) {
return STATUS_INVALID_PARAMETER;
}
//
// Get a reference to our read queue
//
switch (NamedPipeEnd) {
case FILE_PIPE_SERVER_END:
ReadQueue = &Ccb->DataQueue[ FILE_PIPE_INBOUND ];
WriteQueue = &Ccb->DataQueue[ FILE_PIPE_OUTBOUND ];
break;
case FILE_PIPE_CLIENT_END:
ReadQueue = &Ccb->DataQueue[ FILE_PIPE_OUTBOUND ];
WriteQueue = &Ccb->DataQueue[ FILE_PIPE_INBOUND ];
break;
default:
NpBugCheck( NamedPipeEnd, 0, 0 );
}
//
// If the completion mode is complete operations and the current mode
// is queue operations and there and the data queues are not empty
// then its pipe busy
//
if ((Buffer->CompletionMode == FILE_PIPE_COMPLETE_OPERATION)
&&
(Ccb->CompletionMode[ NamedPipeEnd ] == FILE_PIPE_QUEUE_OPERATION)
&&
((NpIsDataQueueReaders(ReadQueue)) ||
(NpIsDataQueueWriters(WriteQueue)))) {
return STATUS_PIPE_BUSY;
}
//
// Everything is fine so update the pipe
//
Ccb->ReadMode[ NamedPipeEnd ] = Buffer->ReadMode;
Ccb->CompletionMode[ NamedPipeEnd ] = Buffer->CompletionMode;
//
// Check for notify
//
NpCheckForNotify( Fcb->ParentDcb, FALSE );
//
// And return to our caller
//
return STATUS_SUCCESS;
}
