Add OpenSSL error translation utility.

Bug: 19507949
Change-Id: I8d499868173e476f5e9f92a7b0e518c3163815ac
diff --git a/openssl_err.h b/openssl_err.h
new file mode 100644
index 0000000..8f97ef5
--- /dev/null
+++ b/openssl_err.h
@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SYSTEM_KEYMASTER_OPENSSL_ERR_H_
+#define SYSTEM_KEYMASTER_OPENSSL_ERR_H_
+
+#include <hardware/keymaster_defs.h>
+#include <keymaster/logger.h>
+
+namespace keymaster {
+
+/**
+ * Translate the last OpenSSL error to a keymaster error.  Does not remove the error from the queue.
+ */
+keymaster_error_t TranslateLastOpenSslError(bool log_message = true);
+
+}  // namespace keymaster
+
+#endif  // SYSTEM_KEYMASTER_OPENSSL_ERR_H_