1 files changed, 50 insertions, 0 deletions
diff --git a/user_channel/shadowlock.hpp b/user_channel/shadowlock.hpp
new file mode 100644
index 0000000..8b09f21
--- /dev/null
+++ b/user_channel/shadowlock.hpp
@@ -0,0 +1,50 @@
+#pragma once
+
+#include <shadow.h>
+
+#include <phosphor-logging/elog-errors.hpp>
+#include <xyz/openbmc_project/Common/error.hpp>
+namespace phosphor
+{
+namespace user
+{
+namespace shadow
+{
+
+using InternalFailure =
+    sdbusplus::xyz::openbmc_project::Common::Error::InternalFailure;
+using namespace phosphor::logging;
+
+/** @class Lock
+ *  @brief Responsible for locking and unlocking /etc/shadow
+ */
+class Lock
+{
+  public:
+    Lock(const Lock&) = delete;
+    Lock& operator=(const Lock&) = delete;
+    Lock(Lock&&) = delete;
+    Lock& operator=(Lock&&) = delete;
+
+    /** @brief Default constructor that just locks the shadow file */
+    Lock()
+    {
+        if (!lckpwdf())
+        {
+            log<level::ERR>("Locking Shadow failed");
+            elog<InternalFailure>();
+        }
+    }
+    ~Lock()
+    {
+        if (!ulckpwdf())
+        {
+            log<level::ERR>("Un-Locking Shadow failed");
+            elog<InternalFailure>();
+        }
+    }
+};
+
+} // namespace shadow
+} // namespace user
+} // namespace phosphor