Start to implement fltmgr tests [WIP] (#52)

[FLTMGR]
- Partially implement registering contexts
- Add a misc file which contains stubs of the APIs needed in the test suite
- Export some APIs needed by the test suite

[KMTESTS]
- Create a File System Mini-filter wrapper to host drivers for the filter manager tests
- Add a test file which will be used for testing that mini-filters load correctly
- Add a test file which will be used to write tests for IRP_MJ_CREATE requests

modules/rostests/kmtests/include/kmt_test.h

@@ -117,6 +117,29 @@ NTSTATUS TestEntry(IN PDRIVER_OBJECT DriverObject, IN PCUNICODE_STRING RegistryP
 VOID TestUnload(IN PDRIVER_OBJECT DriverObject);
 #endif /* defined KMT_STANDALONE_DRIVER */
 
+#ifdef KMT_FILTER_DRIVER
+#ifndef KMT_KERNEL_MODE
+#define KMT_KERNEL_MODE
+#endif
+
+NTSTATUS KmtFilterRegisterCallbacks(_In_ CONST FLT_OPERATION_REGISTRATION *OperationRegistration);
+
+typedef enum
+{
+    TESTENTRY_NO_REGISTER_FILTER = 1,
+    TESTENTRY_NO_CREATE_COMMS_PORT = 2,
+    TESTENTRY_NO_START_FILTERING = 4,
+} KMT_MINIFILTER_FLAGS;
+
+VOID TestFilterUnload(_In_ ULONG Flags);
+NTSTATUS TestInstanceSetup(_In_ PCFLT_RELATED_OBJECTS FltObjects, _In_ FLT_INSTANCE_SETUP_FLAGS Flags, _In_ DEVICE_TYPE VolumeDeviceType, _In_ FLT_FILESYSTEM_TYPE VolumeFilesystemType, _In_ PUNICODE_STRING VolumeName, _In_ ULONG RealSectorSize, _In_ ULONG SectorSize);
+VOID TestQueryTeardown(_In_ PCFLT_RELATED_OBJECTS FltObjects, _In_ FLT_INSTANCE_QUERY_TEARDOWN_FLAGS Flags);
+
+NTSTATUS KmtFilterRegisterComms(_In_ PFLT_CONNECT_NOTIFY ConnectNotifyCallback, _In_ PFLT_DISCONNECT_NOTIFY DisconnectNotifyCallback, _In_opt_ PFLT_MESSAGE_NOTIFY MessageNotifyCallback, _In_ LONG MaxClientConnections);
+
+#endif/* defined KMT_FILTER_DRIVER */
+
+
 #ifdef KMT_KERNEL_MODE
 /* Device Extension layout */
 typedef struct