NTSTATUS
IopIrpCreate(
OUT PIRP* ppIrp,
IN IRP_TYPE Type,
IN PIO_FILE_OBJECT pFileObject
)
{
NTSTATUS status = 0;
int EE = 0;
PIRP pIrp = NULL;
status = IopIrpCreateDetached(&pIrp);
GOTO_CLEANUP_ON_STATUS_EE(status, EE);
status = IopIrpAttach(pIrp, Type, pFileObject);
GOTO_CLEANUP_ON_STATUS_EE(status, EE);
cleanup:
if (status)
{
IopIrpDereference(&pIrp);
}
*ppIrp = pIrp;
IO_LOG_LEAVE_ON_STATUS_EE(status, EE);
return status;
}
NTSTATUS
IopFileObjectAllocate(
OUT PIO_FILE_OBJECT* ppFileObject,
IN PIO_DEVICE_OBJECT pDevice,
IN PIO_FILE_NAME FileName
)
{
NTSTATUS status = 0;
int EE = 0;
PIO_FILE_OBJECT pFileObject = NULL;
status = IO_ALLOCATE(&pFileObject, IO_FILE_OBJECT, sizeof(*pFileObject));
GOTO_CLEANUP_ON_STATUS_EE(status, EE);
pFileObject->ReferenceCount = 1;
pFileObject->pDevice = pDevice;
IopDeviceReference(pDevice);
LwListInit(&pFileObject->IrpList);
LwListInit(&pFileObject->DeviceLinks);
LwListInit(&pFileObject->RundownLinks);
LwListInit(&pFileObject->ZctCompletionIrpList);
// Pre-allocate IRP for close.
status = IopIrpCreateDetached(&pFileObject->pCloseIrp);
GOTO_CLEANUP_ON_STATUS_EE(status, EE);
if (FileName->RootFileHandle)
{
SetFlag(pFileObject->Flags, FILE_OBJECT_FLAG_RELATIVE);
}
status = LwRtlUnicodeStringDuplicate(
&pFileObject->FileName,
&FileName->Name);
GOTO_CLEANUP_ON_STATUS_EE(status, EE);
status = LwRtlInitializeMutex(&pFileObject->Mutex, TRUE);
GOTO_CLEANUP_ON_STATUS_EE(status, EE);
status = LwRtlInitializeConditionVariable(&pFileObject->Rundown.Condition);
GOTO_CLEANUP_ON_STATUS_EE(status, EE);
IopDeviceLock(pDevice);
if (IsSetFlag(pDevice->Flags, IO_DEVICE_OBJECT_FLAG_RUNDOWN) ||
IsSetFlag(pDevice->Flags, IO_DEVICE_OBJECT_FLAG_RUNDOWN_DRIVER))
{
// TODO: Find "correct" error code.
status = STATUS_INVALID_HANDLE;
}
else
{
LwListInsertTail(&pDevice->FileObjectsList, &pFileObject->DeviceLinks);
}
IopDeviceUnlock(pDevice);
cleanup:
if (status)
{
IopFileObjectDereference(&pFileObject);
}
*ppFileObject = pFileObject;
IO_LOG_LEAVE_ON_STATUS_EE(status, EE);
return status;
}