diff --git a/status.hpp b/status.hpp
index c5ea42a..667c050 100644
--- a/status.hpp
+++ b/status.hpp
@@ -12,4 +12,14 @@
     failed = 2,
     other = 3,
 };
-}
+
+/** The status of the update mechanism. */
+enum class UpdateStatus : std::uint8_t
+{
+    running = 0,
+    success = 1,
+    failed = 2,
+    unknown = 3,
+};
+
+} // namespace ipmi_flash
diff --git a/test/bmc_update_mock.hpp b/test/bmc_update_mock.hpp
new file mode 100644
index 0000000..5331b50
--- /dev/null
+++ b/test/bmc_update_mock.hpp
@@ -0,0 +1,22 @@
+#pragma once
+
+#include "status.hpp"
+#include "update.hpp"
+
+#include <memory>
+#include <vector>
+
+#include <gtest/gtest.h>
+
+namespace ipmi_flash
+{
+
+class UpdateMock : public UpdateInterface
+{
+  public:
+    MOCK_METHOD0(triggerUpdate, bool());
+    MOCK_METHOD0(abortUpdate, void());
+    MOCK_METHOD0(status, UpdateStatus());
+};
+
+} // namespace ipmi_flash
diff --git a/update.hpp b/update.hpp
new file mode 100644
index 0000000..99dd9ca
--- /dev/null
+++ b/update.hpp
@@ -0,0 +1,27 @@
+#pragma once
+
+#include "status.hpp"
+
+namespace ipmi_flash
+{
+
+class UpdateInterface
+{
+  public:
+    virtual ~UpdateInterface() = default;
+
+    /**
+     * Trigger the update mechanism.
+     *
+     * @return true if successfully started, false otherwise.
+     */
+    virtual bool triggerUpdate() = 0;
+
+    /** Abort the update process. */
+    virtual void abortUpdate() = 0;
+
+    /** Check the current state of the update process. */
+    virtual UpdateStatus status() = 0;
+};
+
+} // namespace ipmi_flash