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diff --git a/src/ceph/src/cls/lua/cls_lua_client.cc b/src/ceph/src/cls/lua/cls_lua_client.cc
new file mode 100644
index 0000000..4434827
--- /dev/null
+++ b/src/ceph/src/cls/lua/cls_lua_client.cc
@@ -0,0 +1,34 @@
+#include <string>
+#include <vector>
+#include "include/encoding.h"
+#include "include/rados/librados.hpp"  // for IoCtx
+#include "cls_lua_client.h"
+#include "cls_lua_ops.h"
+
+using std::string;
+using std::vector;
+using librados::IoCtx;
+using librados::bufferlist;
+
+namespace cls_lua_client {
+  /*
+   * Currently the return code and return bufferlist are not wrapped in a
+   * protocol that allows object class vs Lua to be distinguished. For
+   * instance, -EOPNOTSUPP might refer to cls_lua not being found, but would
+   * also be returned when cls_lua is found, but a Lua handler is not found.
+   */
+  int exec(IoCtx& ioctx, const string& oid, const string& script,
+      const string& handler, bufferlist& input, bufferlist& output)
+  {
+    cls_lua_eval_op op;
+
+    op.script = script;
+    op.handler = handler;
+    op.input = input;
+
+    bufferlist inbl;
+    ::encode(op, inbl);
+
+    return ioctx.exec(oid, "lua", "eval_bufferlist", inbl, output);
+  }
+}