diff --git a/nlsr-sync-0.0/nlsr_ndn.h b/nlsr-sync-0.0/nlsr_ndn.h
new file mode 100755
index 0000000..1feab1e
--- /dev/null
+++ b/nlsr-sync-0.0/nlsr_ndn.h
@@ -0,0 +1,37 @@
+#ifndef _NLSR_NDN_H_
+#define _NLSR_NDN_H_
+
+int appendLifetime(struct ccn_charbuf *cb, int lifetime);
+void get_nbr(struct name_prefix *nbr,struct ccn_closure *selfp, struct ccn_upcall_info *info);
+void get_lsa_identifier(struct name_prefix *lsaId,struct ccn_closure *selfp, struct ccn_upcall_info *info,int offset);
+void get_lsdb_version(char *lsdb_version,struct ccn_closure *selfp, struct ccn_upcall_info *info );
+int get_ls_type(struct ccn_closure *selfp, struct ccn_upcall_info *info);
+
+enum ccn_upcall_res incoming_interest(struct ccn_closure *selfp, enum ccn_upcall_kind kind, struct ccn_upcall_info *info);
+ 
+void process_incoming_interest(struct ccn_closure *selfp, struct ccn_upcall_info *info);
+void process_incoming_interest_info(struct ccn_closure *selfp, struct ccn_upcall_info *info);
+void process_incoming_interest_lsdb(struct ccn_closure *selfp, struct ccn_upcall_info *info);
+void process_incoming_interest_lsa(struct ccn_closure *selfp, struct ccn_upcall_info *info);
+
+
+enum ccn_upcall_res incoming_content(struct ccn_closure* selfp, enum ccn_upcall_kind kind, struct ccn_upcall_info* info);
+void process_incoming_content(struct ccn_closure *selfp, struct ccn_upcall_info* info);
+void process_incoming_content_info(struct ccn_closure *selfp, struct ccn_upcall_info* info);
+void process_incoming_content_lsdb(struct ccn_closure *selfp, struct ccn_upcall_info* info);
+void process_incoming_content_lsa(struct ccn_closure *selfp, struct ccn_upcall_info* info);
+
+void process_incoming_timed_out_interest(struct ccn_closure* selfp, struct ccn_upcall_info* info);
+void process_incoming_timed_out_interest_info(struct ccn_closure* selfp, struct ccn_upcall_info* info);
+void process_incoming_timed_out_interest_lsdb(struct ccn_closure* selfp, struct ccn_upcall_info* info);
+void process_incoming_timed_out_interest_lsa(struct ccn_closure* selfp, struct ccn_upcall_info* info);
+
+int send_info_interest(struct ccn_schedule *sched, void *clienth, struct ccn_scheduled_event *ev, int flags);
+void send_info_interest_to_neighbor(struct name_prefix *nbr);
+
+int send_lsdb_interest(struct ccn_schedule *sched, void *clienth, struct ccn_scheduled_event *ev, int flags);
+void send_lsdb_interest_to_nbr(struct name_prefix *nbr);
+void send_interest_for_name_lsa(struct name_prefix *nbr, char *orig_router, char *ls_type, char *ls_id);
+void send_interest_for_adj_lsa(struct name_prefix *nbr, char *orig_router, char *ls_type);
+
+#endif