diff --git a/nlsr_ndn.h b/nlsr_ndn.h
index 0b6b14c..4932fb6 100644
--- a/nlsr_ndn.h
+++ b/nlsr_ndn.h
@@ -2,16 +2,20 @@
 #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);
+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);
 
+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);
@@ -20,15 +24,12 @@
 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);
 
-
 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
-