diff --git a/logging.h b/logging.h
new file mode 100644
index 0000000..3cfbc7a
--- /dev/null
+++ b/logging.h
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2016 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 _LOGGING_H
+#define _LOGGING_H
+
+#include <stddef.h>
+#include <sys/types.h>
+
+#include <string>
+
+#include <log/log_id.h>
+
+static constexpr int KEEP_LOG_COUNT = 10;
+
+ssize_t logbasename(log_id_t id, char prio, const char* filename, const char* buf, size_t len,
+                    void* arg);
+
+ssize_t logrotate(log_id_t id, char prio, const char* filename, const char* buf, size_t len,
+                  void* arg);
+
+// Rename last_log -> last_log.1 -> last_log.2 -> ... -> last_log.$max.
+// Similarly rename last_kmsg -> last_kmsg.1 -> ... -> last_kmsg.$max.
+// Overwrite any existing last_log.$max and last_kmsg.$max.
+void rotate_logs(const char* last_log_file, const char* last_kmsg_file);
+
+// In turn fflush(3)'s, fsync(3)'s and fclose(3)'s the given stream.
+void check_and_fclose(FILE* fp, const std::string& name);
+
+void copy_log_file_to_pmsg(const std::string& source, const std::string& destination);
+void copy_log_file(const std::string& source, const std::string& destination, bool append);
+void copy_logs(bool modified_flash, bool has_cache);
+void reset_tmplog_offset();
+
+void save_kernel_log(const char* destination);
+
+#endif  //_LOGGING_H