diff --git a/bgpd/bgp_clist.h b/bgpd/bgp_clist.h
new file mode 100644
index 0000000..ffc707c
--- /dev/null
+++ b/bgpd/bgp_clist.h
@@ -0,0 +1,143 @@
+/* BGP Community list.
+   Copyright (C) 1999 Kunihiro Ishiguro
+
+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.  */
+
+/* Community-list deny and permit.  */
+#define COMMUNITY_DENY                 0
+#define COMMUNITY_PERMIT               1
+
+/* Number and string based community-list name.  */
+#define COMMUNITY_LIST_STRING          0
+#define COMMUNITY_LIST_NUMBER          1
+
+/* Community-list entry types.  */
+#define COMMUNITY_LIST_STANDARD        0 /* Standard community-list.  */
+#define COMMUNITY_LIST_EXPANDED        1 /* Expanded community-list.  */
+#define COMMUNITY_LIST_AUTO            2 /* Automatically detected.  */
+#define EXTCOMMUNITY_LIST_STANDARD     3 /* Standard extcommunity-list.  */
+#define EXTCOMMUNITY_LIST_EXPANDED     4 /* Expanded extcommunity-list.  */
+#define EXTCOMMUNITY_LIST_AUTO         5 /* Automatically detected.  */
+
+/* Community-list.  */
+struct community_list
+{
+  /* Name of the community-list.  */
+  char *name;
+
+  /* String or number.  */
+  int sort;
+
+  /* Link to upper list.  */
+  struct community_list_list *parent;
+
+  /* Linked list for other community-list.  */
+  struct community_list *next;
+  struct community_list *prev;
+
+  /* Community-list entry in this community-list.  */
+  struct community_entry *head;
+  struct community_entry *tail;
+};
+
+/* Each entry in community-list.  */
+struct community_entry
+{
+  struct community_entry *next;
+  struct community_entry *prev;
+
+  /* Permit or deny.  */
+  u_char direct;
+
+  /* Standard or expanded.  */
+  u_char style;
+
+  /* Any match.  */
+  u_char any;
+
+  /* Community structure.  */
+  union
+  {
+    struct community *com;
+    struct ecommunity *ecom;
+  } u;
+
+  /* Configuration string.  */
+  char *config;
+
+  /* Expanded community-list regular expression.  */
+  regex_t *reg;
+};
+
+/* Linked list of community-list.  */
+struct community_list_list
+{
+  struct community_list *head;
+  struct community_list *tail;
+};
+
+/* Master structure of community-list and extcommunity-list.  */
+struct community_list_master
+{
+  struct community_list_list num;
+  struct community_list_list str;
+};
+
+/* Community-list handler.  community_list_init() returns this
+   structure as handler.  */
+struct community_list_handler
+{
+  /* Community-list.  */
+  struct community_list_master community_list;
+
+  /* Exteded community-list.  */
+  struct community_list_master extcommunity_list;
+};
+
+/* Error code of community-list.  */
+#define COMMUNITY_LIST_ERR_CANT_FIND_LIST        -1
+#define COMMUNITY_LIST_ERR_MALFORMED_VAL         -2
+#define COMMUNITY_LIST_ERR_STANDARD_CONFLICT     -3
+#define COMMUNITY_LIST_ERR_EXPANDED_CONFLICT     -4
+
+/* Handler.  */
+extern struct community_list_handler *bgp_clist;
+
+/* Prototypes.  */
+struct community_list_handler *community_list_init ();
+
+int community_list_set (struct community_list_handler *ch,
+			char *name, char *str, int direct, int style);
+int community_list_unset (struct community_list_handler *ch,
+			  char *name, char *str, int direct, int style);
+int extcommunity_list_set (struct community_list_handler *ch,
+			   char *name, char *str, int direct, int style);
+int extcommunity_list_unset (struct community_list_handler *ch,
+			     char *name, char *str, int direct, int style);
+
+struct community_list_master *
+community_list_master_lookup (struct community_list_handler *, int);
+
+struct community_list *
+community_list_lookup (struct community_list_handler *, char *, int);
+
+int community_list_match (struct community *, struct community_list *);
+int community_list_exact_match (struct community *, struct community_list *);
+struct community *
+community_list_match_delete (struct community *,
+			     struct community_list *);