NDIS_STATUS NICDeregisterDevice(VOID)
{
NDIS_STATUS Status = NDIS_STATUS_SUCCESS;
PAGED_CODE();
if (g_NdisDeviceHandle != NULL)
{
Status = NdisMDeregisterDevice(g_NdisDeviceHandle);
g_NdisDeviceHandle = NULL;
}
return Status;
}
void __fastcall
ssh_interceptor_iodevice_close_device(SshInterceptorIoDevice io_dev)
{
SSH_ASSERT(io_dev != NULL);
NdisAcquireSpinLock(&io_dev->output_queue_lock);
if (InterlockedCompareExchange(&io_dev->opened_instances, 0, 0) != 0)
{
SSH_DEBUG(SSH_D_HIGHSTART,
("I/O device is still open; marking it for delayed destroy"));
io_dev->destroy_after_close = TRUE;
NdisReleaseSpinLock(&io_dev->output_queue_lock);
return;
}
NdisReleaseSpinLock(&io_dev->output_queue_lock);
if (InterlockedCompareExchange(&io_dev->io_device_created, 0, 1) == 0)
{
SSH_DEBUG(SSH_D_HIGHSTART,
("I/O device already closed; ignoring this call"));
return;
}
SSH_DEBUG(SSH_D_HIGHSTART, ("Closing I/O device and symbolic link..."));
SSH_ASSERT(ssh_interceptor_iodevice_is_open(io_dev) == FALSE);
/* Restore the original security descriptor back and free the
modified one */
if (io_dev->orig_sd)
{
#pragma warning(disable : 28175)
ssh_free(io_dev->device->SecurityDescriptor);
io_dev->device->SecurityDescriptor = io_dev->orig_sd;
#pragma warning(default : 28175)
}
#ifdef SSH_IM_INTERCEPTOR
NdisMDeregisterDevice(io_dev->handle);
#else /* not SSH_IM_INTERCEPTOR */
if (!NT_SUCCESS(IoDeleteSymbolicLink(&io_dev->symlink_name)))
{
SSH_DEBUG(SSH_D_FAIL,
("ssh_interceptor_iodevice_uninitialize(): "
"IoDeleteSymbolicLink() failed !"));
}
IoDeleteDevice(io_dev->device);
#endif /* not SSH_IM_INTERCEPTOR */
}
NDIS_STATUS
ProtocolDeregisterDevice(
VOID
)
{
NDIS_STATUS Status = NDIS_STATUS_SUCCESS;
NdisAcquireSpinLock(&GlobalLock);
ASSERT(MiniportCount > 0);
--MiniportCount;
if (0 == MiniportCount)
{
//
// All miniport instances have been halted. Deregister
// the control device.
//
ASSERT(ControlDeviceState == PS_DEVICE_STATE_READY);
//
// Block PtRegisterDevice() while we release the control
// device lock and deregister the device.
//
ControlDeviceState = PS_DEVICE_STATE_DELETING;
NdisReleaseSpinLock(&GlobalLock);
if (NdisDeviceHandle != NULL)
{
Status = NdisMDeregisterDevice(NdisDeviceHandle);
NdisDeviceHandle = NULL;
}
NdisAcquireSpinLock(&GlobalLock);
ControlDeviceState = PS_DEVICE_STATE_READY;
}
NdisReleaseSpinLock(&GlobalLock);
return Status;
}
// Release the control device
void NeoFreeControlDevice()
{
if (ctx == NULL)
{
return;
}
if (ctx->Opened != FALSE)
{
// Delete the event
NeoSet(ctx->Event);
NeoFreeEvent(ctx->Event);
ctx->Event = NULL;
ctx->Opened = FALSE;
}
// Delet the device
NdisMDeregisterDevice(ctx->NdisControl);
}
NDIS_STATUS
PtDeregisterDevice(
VOID
)
/*++
Routine Description:
Deregister the ioctl interface. This is called whenever a miniport
instance is halted. When the last miniport instance is halted, we
request NDIS to delete the device object
Arguments:
NdisDeviceHandle - Handle returned by NdisMRegisterDevice
Return Value:
NDIS_STATUS_SUCCESS if everything worked ok
--*/
{
NDIS_STATUS Status = NDIS_STATUS_SUCCESS;
DBGPRINT(("==>PassthruDeregisterDevice\n"));
NdisAcquireSpinLock(&GlobalLock);
ASSERT(MiniportCount > 0);
--MiniportCount;
if (0 == MiniportCount)
{
//
// All miniport instances have been halted. Deregister
// the control device.
//
ASSERT(ControlDeviceState == PS_DEVICE_STATE_READY);
//
// Block PtRegisterDevice() while we release the control
// device lock and deregister the device.
//
ControlDeviceState = PS_DEVICE_STATE_DELETING;
NdisReleaseSpinLock(&GlobalLock);
if (NdisDeviceHandle != NULL)
{
Status = NdisMDeregisterDevice(NdisDeviceHandle);
NdisDeviceHandle = NULL;
}
NdisAcquireSpinLock(&GlobalLock);
ControlDeviceState = PS_DEVICE_STATE_READY;
}
NdisReleaseSpinLock(&GlobalLock);
DBGPRINT(("<== PassthruDeregisterDevice: %x\n", Status));
return Status;
}
