diff --git a/nlsr-sync-0.0/nlsr_lsdb.h b/nlsr-sync-0.0/nlsr_lsdb.h
new file mode 100755
index 0000000..4e8a8d1
--- /dev/null
+++ b/nlsr-sync-0.0/nlsr_lsdb.h
@@ -0,0 +1,91 @@
+#ifndef _NLSR_LSDB_H_
+#define _NLSR_LSDB_H_
+
+#define LS_TYPE_ADJ 1
+#define LS_TYPE_NAME 2
+
+struct link
+{
+	struct name_prefix *nbr;
+	int face;
+	int metric;
+};
+
+
+struct alsa_header 
+{
+	unsigned int ls_type;
+	char *orig_time;
+	struct name_prefix *orig_router;
+	
+};
+
+struct alsa
+{
+	struct alsa_header *header;	
+	int no_link;
+	struct link *links;
+	char * body;
+};
+
+struct nlsa_header
+{
+	unsigned int ls_type;
+	char *orig_time;
+	long int ls_id;
+	struct name_prefix *orig_router;
+	unsigned int isValid;
+
+};
+
+struct nlsa
+{
+	struct nlsa_header *header;
+	struct name_prefix *name_prefix;
+};
+
+
+void set_new_lsdb_version(void);
+void build_and_install_name_lsas(void);
+void build_and_install_single_name_lsa(struct name_prefix *np);
+void build_name_lsa(struct nlsa *name_lsa, struct name_prefix *np);
+void install_name_lsa(struct nlsa *name_lsa);
+void print_name_lsa(struct nlsa *name_lsa);
+void write_log_for_name_lsa(struct nlsa *name_lsa);
+void print_name_lsdb(void);
+void build_and_install_others_name_lsa(char *orig_router,int ls_type,long int ls_id,char *orig_time, int isValid,char *np);
+void build_others_name_lsa(struct nlsa *name_lsa, char *orig_router,int ls_type,long int ls_id, char *orig_time, int isValid, char *np);
+void make_name_lsa_key(char *key, char *orig_router, int ls_type, long int ls_id);
+int refresh_lsdb(struct ccn_schedule *sched, void *clienth, struct ccn_scheduled_event *ev, int flags);
+
+int build_and_install_adj_lsa(struct ccn_schedule *sched, void *clienth, struct ccn_scheduled_event *ev, int flags);
+void build_adj_lsa(struct alsa * adj_lsa);
+void install_adj_lsa(struct alsa * adj_lsa);
+void print_adj_lsa_body(const char *body, int no_link);
+void print_adj_lsa(struct alsa * adj_lsa);
+void write_log_for_adj_lsa(struct alsa * adj_lsa);
+void print_adj_lsdb(void);
+void make_adj_lsa_key(char *key,struct alsa *adj_lsa);
+void build_and_install_others_adj_lsa(char *orig_router,int ls_type,char *orig_time, int no_link,char *data);
+void build_others_adj_lsa(struct alsa *adj_lsa,char *orig_router,int ls_type,char *orig_time,int no_link,char *data);
+
+long int get_name_lsdb_num_element(void);
+long int get_adj_lsdb_num_element(void);
+
+void get_name_lsdb_summary(struct ccn_charbuf *name_lsdb_data);
+void get_adj_lsdb_summary(struct ccn_charbuf *adj_lsdb_data);
+void get_lsdb_summary(struct ccn_charbuf *lsdb_data);
+
+int check_is_new_name_lsa(char *orig_router,char *lst,char *lsid,char *orig_time);
+int check_is_new_adj_lsa(char *orig_router,char *lst,char *orig_time);
+
+void get_name_lsa_data(struct ccn_charbuf *lsa_data,struct name_prefix *lsaId);
+void get_adj_lsa_data(struct ccn_charbuf *lsa_data,struct name_prefix *lsaId);
+
+void make_name_lsa_invalid(struct name_prefix *np,int ls_type, long int ls_id);
+
+void write_name_lsdb_to_repo(char *slice_prefix);
+void write_name_lsa_to_repo(char *repo_content_prefix, struct name_prefix *lsa_id);
+void make_name_lsa_prefix_for_repo(char *key, char *orig_router, int ls_type, long int ls_id,char *orig_time,char *slice_prefix);
+
+#endif