diff --git a/nlsr_adl.h b/nlsr_adl.h
new file mode 100644
index 0000000..1803a14
--- /dev/null
+++ b/nlsr_adl.h
@@ -0,0 +1,9 @@
+#ifndef _NLSR_ADL_H_
+#define _NLSR_ADL_H_
+
+void add_adjacent_to_adl(struct ndn_neighbor *nbr);
+void print_adjacent_from_adl(void);
+void update_adjacent_status_to_adl(struct ccn_charbuf *nbr, int status);
+void update_adjacent_lsdb_version_to_adl(struct ccn_charbuf *nbr, char *version);
+
+#endif