1 files changed, 332 insertions, 0 deletions
diff --git a/ospf6d/ospf6_area.c b/ospf6d/ospf6_area.c
new file mode 100644
index 00000000..51af5080
--- /dev/null
+++ b/ospf6d/ospf6_area.c
@@ -0,0 +1,332 @@
+/*
+ * OSPF6 Area Data Structure
+ * Copyright (C) 1999-2002 Yasuhiro Ohara
+ *
+ * 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.  
+ */
+
+#include "ospf6d.h"
+
+static int area_index;
+#define IS_OSPF6_DUMP_AREA (ospf6_dump_is_on (area_index))
+
+static void
+ospf6_area_foreach_interface (struct ospf6_area *o6a, void *arg, int val,
+                              void (*func) (void *, int, void *))
+{
+  listnode node;
+  struct ospf6_interface *o6i;
+
+  for (node = listhead (o6a->if_list); node; nextnode (node))
+    {
+      o6i = (struct ospf6_interface *) getdata (node);
+      (*func) (arg, val, o6i);
+    }
+}
+
+static void
+ospf6_area_foreach_neighbor (struct ospf6_area *o6a, void *arg, int val,
+                             void (*func) (void *, int, void *))
+{
+  listnode node;
+  struct ospf6_interface *o6i;
+
+  for (node = listhead (o6a->if_list); node; nextnode (node))
+    {
+      o6i = (struct ospf6_interface *) getdata (node);
+      (*o6i->foreach_nei) (o6i, arg, val, func);
+    }
+}
+
+static int
+ospf6_area_maxage_remover (struct thread *t)
+{
+  int count;
+  struct ospf6_area *o6a = (struct ospf6_area *) THREAD_ARG (t);
+
+  o6a->maxage_remover = (struct thread *) NULL;
+
+  count = 0;
+  o6a->foreach_nei (o6a, &count, NBS_EXCHANGE, ospf6_count_state);
+  o6a->foreach_nei (o6a, &count, NBS_LOADING, ospf6_count_state);
+  if (count != 0)
+    return 0;
+
+  ospf6_lsdb_remove_maxage (o6a->lsdb);
+  return 0;
+}
+
+void
+ospf6_area_schedule_maxage_remover (void *arg, int val, void *obj)
+{
+  struct ospf6_area *o6a = (struct ospf6_area *) obj;
+
+  if (o6a->maxage_remover != NULL)
+    return;
+
+  o6a->maxage_remover =
+    thread_add_event (master, ospf6_area_maxage_remover, o6a, 0);
+}
+
+int
+ospf6_area_is_stub (struct ospf6_area *o6a)
+{
+  if (OSPF6_OPT_ISSET (o6a->options, OSPF6_OPT_E))
+    return 0;
+  return 1;
+}
+
+int
+ospf6_area_is_transit (struct ospf6_area *o6a)
+{
+  return 0;
+}
+
+
+
+void
+ospf6_area_route_add (void *data)
+{
+  struct ospf6_route_req *route = data;
+  struct in6_addr local;
+
+  inet_pton (AF_INET6, "::1", &local);
+  if (! memcmp (&route->nexthop.address, &local, sizeof (struct in6_addr)))
+    {
+      if (IS_OSPF6_DUMP_AREA)
+        zlog_info ("AREA: Self-originated route add, ignore");
+      return;
+    }
+
+  ospf6_route_add (route, ospf6->route_table);
+}
+
+void
+ospf6_area_route_remove (void *data)
+{
+  struct ospf6_route_req *route = data;
+  struct in6_addr local;
+
+  inet_pton (AF_INET6, "::1", &local);
+  if (! memcmp (&route->nexthop.address, &local, sizeof (struct in6_addr)))
+    {
+      if (IS_OSPF6_DUMP_AREA)
+        zlog_info ("AREA: Self-originated route remove, ignore");
+      return;
+    }
+
+  ospf6_route_remove (route, ospf6->route_table);
+}
+
+/* Make new area structure */
+struct ospf6_area *
+ospf6_area_create (u_int32_t area_id)
+{
+  struct ospf6_area *o6a;
+  char namebuf[64];
+
+  /* allocate memory */
+  o6a = XCALLOC (MTYPE_OSPF6_AREA, sizeof (struct ospf6_area));
+
+  /* initialize */
+  inet_ntop (AF_INET, &area_id, o6a->str, sizeof (o6a->str));
+  o6a->area_id = area_id;
+  o6a->if_list = list_new ();
+
+  o6a->lsdb = ospf6_lsdb_create ();
+  o6a->spf_tree = ospf6_spftree_create ();
+
+  snprintf (namebuf, sizeof (namebuf), "Area %s's route table", o6a->str);
+  o6a->route_table = ospf6_route_table_create (namebuf);
+  o6a->route_table->hook_add = ospf6_area_route_add;
+  o6a->route_table->hook_change = ospf6_area_route_add;
+  o6a->route_table->hook_remove = ospf6_area_route_remove;
+
+  snprintf (namebuf, sizeof (namebuf), "Area %s's topology table", o6a->str);
+  o6a->table_topology = ospf6_route_table_create (namebuf);
+  o6a->table_topology->hook_add = ospf6_intra_topology_add;
+  o6a->table_topology->hook_change = ospf6_intra_topology_add;
+  o6a->table_topology->hook_remove = ospf6_intra_topology_remove;
+
+  /* xxx, set options */
+  OSPF6_OPT_SET (o6a->options, OSPF6_OPT_V6);
+  OSPF6_OPT_SET (o6a->options, OSPF6_OPT_E);
+  OSPF6_OPT_SET (o6a->options, OSPF6_OPT_R);
+
+  o6a->foreach_if = ospf6_area_foreach_interface;
+  o6a->foreach_nei = ospf6_area_foreach_neighbor;
+
+  return o6a;
+}
+
+void
+ospf6_area_bind_top (struct ospf6_area *o6a, struct ospf6 *o6)
+{
+  o6a->ospf6 = o6;
+  CALL_CHANGE_HOOK (&area_hook, o6a);
+  return;
+}
+
+void
+ospf6_area_delete (struct ospf6_area *o6a)
+{
+  listnode n;
+  struct ospf6_interface *o6i;
+
+  CALL_REMOVE_HOOK (&area_hook, o6a);
+
+  /* ospf6 interface list */
+  for (n = listhead (o6a->if_list); n; nextnode (n))
+    {
+      o6i = (struct ospf6_interface *) getdata (n);
+      /* ospf6_interface_delete (o6i); */
+    }
+  list_delete (o6a->if_list);
+
+  /* terminate LSDB */
+  ospf6_lsdb_remove_all (o6a->lsdb);
+
+  /* spf tree terminate */
+  /* xxx */
+
+  /* threads */
+  if (o6a->spf_calc)
+    thread_cancel (o6a->spf_calc);
+  o6a->spf_calc = (struct thread *) NULL;
+  if (o6a->route_calc)
+    thread_cancel (o6a->route_calc);
+  o6a->route_calc = (struct thread *) NULL;
+
+  /* new */
+  ospf6_route_table_delete (o6a->route_table);
+
+  ospf6_spftree_delete (o6a->spf_tree);
+  ospf6_route_table_delete (o6a->table_topology);
+
+  /* free area */
+  XFREE (MTYPE_OSPF6_AREA, o6a);
+}
+
+struct ospf6_area *
+ospf6_area_lookup (u_int32_t area_id, struct ospf6 *o6)
+{
+  struct ospf6_area *o6a;
+  listnode n;
+
+  for (n = listhead (o6->area_list); n; nextnode (n))
+    {
+      o6a = (struct ospf6_area *) getdata (n);
+      if (o6a->area_id == area_id)
+        return o6a;
+    }
+
+  return (struct ospf6_area *) NULL;
+}
+
+void
+ospf6_area_show (struct vty *vty, struct ospf6_area *o6a)
+{
+  listnode i;
+  struct ospf6_interface *o6i;
+
+  vty_out (vty, " Area %s%s", o6a->str, VTY_NEWLINE);
+  vty_out (vty, "     Number of Area scoped LSAs is %u%s",
+           o6a->lsdb->count, VTY_NEWLINE);
+
+  ospf6_spf_statistics_show (vty, o6a->spf_tree);
+
+  vty_out (vty, "     Interface attached to this area:");
+  for (i = listhead (o6a->if_list); i; nextnode (i))
+    {
+      o6i = (struct ospf6_interface *) getdata (i);
+      vty_out (vty, " %s", o6i->interface->name);
+    }
+  vty_out (vty, "%s", VTY_NEWLINE);
+
+  for (i = listhead (o6a->if_list); i; nextnode (i))
+    {
+      o6i = (struct ospf6_interface *) getdata (i);
+      if (listcount (o6i->neighbor_list) != 0)
+        ospf6_interface_statistics_show (vty, o6i);
+    }
+}
+
+void
+ospf6_area_statistics_show (struct vty *vty, struct ospf6_area *o6a)
+{
+#if 0
+  listnode node;
+  struct ospf6_interface *o6i;
+
+  vty_out (vty, "  Statistics of Area %s%s", o6a->str, VTY_NEWLINE);
+#endif
+}
+
+DEFUN (show_ipv6_ospf6_area_route,
+       show_ipv6_ospf6_area_route_cmd,
+       "show ipv6 ospf6 area A.B.C.D route",
+       SHOW_STR
+       IP6_STR
+       OSPF6_STR
+       OSPF6_AREA_STR
+       OSPF6_AREA_ID_STR
+       ROUTE_STR
+       )
+{
+  struct ospf6_area *o6a;
+  u_int32_t area_id;
+
+  OSPF6_CMD_CHECK_RUNNING ();
+
+  inet_pton (AF_INET, argv[0], &area_id);
+  o6a = ospf6_area_lookup (area_id, ospf6);
+
+  if (! o6a)
+    return CMD_SUCCESS;
+
+  argc -= 1;
+  argv += 1;
+
+  return ospf6_route_table_show (vty, argc, argv, o6a->route_table);
+}
+
+ALIAS (show_ipv6_ospf6_area_route,
+       show_ipv6_ospf6_area_route_prefix_cmd,
+       "show ipv6 ospf6 area A.B.C.D route (X::X|detail)",
+       SHOW_STR
+       IP6_STR
+       OSPF6_STR
+       OSPF6_AREA_STR
+       OSPF6_AREA_ID_STR
+       ROUTE_STR
+       "Specify IPv6 address\n"
+       "Detailed information\n"
+       )
+
+void
+ospf6_area_init ()
+{
+  area_index = ospf6_dump_install ("area", "Area information\n");
+
+  install_element (VIEW_NODE, &show_ipv6_ospf6_area_route_cmd);
+  install_element (VIEW_NODE, &show_ipv6_ospf6_area_route_prefix_cmd);
+  install_element (ENABLE_NODE, &show_ipv6_ospf6_area_route_cmd);
+  install_element (ENABLE_NODE, &show_ipv6_ospf6_area_route_prefix_cmd);
+}
+
+