diff --git a/ospfd/ospf_flood.h b/ospfd/ospf_flood.h
new file mode 100644
index 0000000..1a6ab97
--- /dev/null
+++ b/ospfd/ospf_flood.h
@@ -0,0 +1,65 @@
+/*
+ * OSPF Flooding -- RFC2328 Section 13.
+ * Copyright (C) 1999, 2000 Toshiaki Takada
+ *
+ * This file is part of GNU Zebra.
+ * 
+ * GNU Zebra is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published
+ * by the Free Software Foundation; either version 2, or (at your
+ * option) any later version.
+ *
+ * GNU Zebra is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GNU Zebra; see the file COPYING.  If not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifndef _ZEBRA_OSPF_FLOODING_H
+#define _ZEBRA_OSPF_FLOODING_H
+
+int ospf_flood (struct ospf_neighbor *, struct ospf_lsa *, struct ospf_lsa *);
+int ospf_flood_through (struct ospf_neighbor *, struct ospf_lsa *);
+int ospf_flood_through_area (struct ospf_area *, struct ospf_neighbor *,
+			     struct ospf_lsa *);
+int ospf_flood_through_as (struct ospf_neighbor *, struct ospf_lsa *);
+
+unsigned long ospf_ls_request_count (struct ospf_neighbor *);
+int ospf_ls_request_isempty (struct ospf_neighbor *);
+struct ospf_lsa *ospf_ls_request_new (struct lsa_header *);
+void ospf_ls_request_free (struct ospf_lsa *);
+void ospf_ls_request_add (struct ospf_neighbor *, struct ospf_lsa *);
+void ospf_ls_request_delete (struct ospf_neighbor *, struct ospf_lsa *);
+void ospf_ls_request_delete_all (struct ospf_neighbor *);
+struct ospf_lsa *ospf_ls_request_lookup (struct ospf_neighbor *,
+					 struct ospf_lsa *);
+
+unsigned long ospf_ls_retransmit_count (struct ospf_neighbor *);
+unsigned long ospf_ls_retransmit_count_self (struct ospf_neighbor *, int);
+int ospf_ls_retransmit_isempty (struct ospf_neighbor *);
+void ospf_ls_retransmit_add (struct ospf_neighbor *, struct ospf_lsa *);
+void ospf_ls_retransmit_delete (struct ospf_neighbor *, struct ospf_lsa *);
+void ospf_ls_retransmit_clear (struct ospf_neighbor *);
+struct ospf_lsa *ospf_ls_retransmit_lookup (struct ospf_neighbor *,
+					    struct ospf_lsa *);
+void ospf_ls_retransmit_delete_nbr_all (struct ospf_area *, struct ospf_lsa *);
+void ospf_ls_retransmit_add_nbr_all (struct ospf_interface *,
+				     struct ospf_lsa *);
+
+void ospf_flood_lsa_area (struct ospf_lsa *, struct ospf_area *);
+void ospf_flood_lsa_as (struct ospf_lsa *);
+void ospf_lsa_flush_area (struct ospf_lsa *, struct ospf_area *);
+void ospf_lsa_flush_as (struct ospf_lsa *);
+void ospf_flush_through_as (struct ospf_lsa *);
+struct external_info *ospf_external_info_check (struct ospf_lsa *);
+
+void debug_ospf_ls_retransmit (struct ospf_neighbor *);
+
+void ospf_lsdb_init (struct ospf_lsdb *);
+
+#endif /* _ZEBRA_OSPF_FLOODING_H */