diff --git a/sources/ui-socket.h b/sources/ui-socket.h
new file mode 100644
index 0000000..198d86b
--- /dev/null
+++ b/sources/ui-socket.h
@@ -0,0 +1,19 @@
+
+/*
+ * Interface for controlling communication with the UI.
+ */
+
+#ifndef UI_SOCKET_H
+#define UI_SOCKET_H
+
+struct process_info {
+  // TODO: define some fields
+};
+
+int init_ui_socket();
+
+// TODO: design an interface for asking user for permission.
+
+int ask_access(const char *filename, process_info pi);
+
+#endif // !UI_SOCKET_H