ospf6_area.c

linux 路由软件 可支持RIP OSPF BGP等

  u_int32_t area_id = 0;                                   \
  if (inet_pton (AF_INET, str, &area_id) != 1)             \
    {                                                      \
      vty_out (vty, "Malformed Area-ID: %s%s", str, VNL);  \
      return CMD_SUCCESS;                                  \
    }                                                      \
  oa = ospf6_area_lookup (area_id, ospf6);                 \
  if (oa == NULL)                                          \
    {                                                      \
      vty_out (vty, "No such Area: %s%s", str, VNL);       \
      return CMD_SUCCESS;                                  \
    }                                                      \
}

#define OSPF6_CMD_AREA_GET(str, oa)                        \
{                                                          \
  u_int32_t area_id = 0;                                   \
  if (inet_pton (AF_INET, str, &area_id) != 1)             \
    {                                                      \
      vty_out (vty, "Malformed Area-ID: %s%s", str, VNL);  \
      return CMD_SUCCESS;                                  \
    }                                                      \
  oa = ospf6_area_get (area_id, ospf6);                    \
}

DEFUN (area_range,
       area_range_cmd,
       "area A.B.C.D range X:X::X:X/M",
       "OSPF area parameters\n"
       OSPF6_AREA_ID_STR
       "Configured address range\n"
       "Specify IPv6 prefix\n"
       )
{
  int ret;
  struct ospf6_area *oa;
  struct prefix prefix;
  struct ospf6_route *range;

  OSPF6_CMD_AREA_GET (argv[0], oa);
  argc--;
  argv++;

  ret = str2prefix (argv[0], &prefix);
  if (ret != 1 || prefix.family != AF_INET6)
    {
      vty_out (vty, "Malformed argument: %s%s", argv[0], VNL);
      return CMD_SUCCESS;
    }
  argc--;
  argv++;

  range = ospf6_route_lookup (&prefix, oa->range_table);
  if (range == NULL)
    {
      range = ospf6_route_create ();
      range->type = OSPF6_DEST_TYPE_RANGE;
      range->prefix = prefix;
    }

  if (argc)
    {
      if (! strcmp (argv[0], "not-advertise"))
        SET_FLAG (range->flag, OSPF6_ROUTE_DO_NOT_ADVERTISE);
      else if (! strcmp (argv[0], "advertise"))
        UNSET_FLAG (range->flag, OSPF6_ROUTE_DO_NOT_ADVERTISE);
    }

  ospf6_route_add (range, oa->range_table);
  return CMD_SUCCESS;
}

ALIAS (area_range,
       area_range_advertise_cmd,
       "area A.B.C.D range X:X::X:X/M (advertise|not-advertise)",
       "OSPF area parameters\n"
       OSPF6_AREA_ID_STR
       "Configured address range\n"
       "Specify IPv6 prefix\n"
       );

DEFUN (no_area_range,
       no_area_range_cmd,
       "no area A.B.C.D range X:X::X:X/M",
       "OSPF area parameters\n"
       OSPF6_AREA_ID_STR
       "Configured address range\n"
       "Specify IPv6 prefix\n"
       )
{
  int ret;
  struct ospf6_area *oa;
  struct prefix prefix;
  struct ospf6_route *range;

  OSPF6_CMD_AREA_GET (argv[0], oa);
  argc--;
  argv++;

  ret = str2prefix (argv[0], &prefix);
  if (ret != 1 || prefix.family != AF_INET6)
    {
      vty_out (vty, "Malformed argument: %s%s", argv[0], VNL);
      return CMD_SUCCESS;
    }

  range = ospf6_route_lookup (&prefix, oa->range_table);
  if (range == NULL)
    {
      vty_out (vty, "Range %s does not exists.%s", argv[0], VNL);
      return CMD_SUCCESS;
    }

  ospf6_route_remove (range, oa->range_table);
  return CMD_SUCCESS;
}

void
ospf6_area_config_write (struct vty *vty)
{
  listnode node;
  struct ospf6_area *oa;
  struct ospf6_route *range;
  char buf[128];

  for (node = listhead (ospf6->area_list); node; nextnode (node))
    {
      oa = OSPF6_AREA (getdata (node));

      for (range = ospf6_route_head (oa->range_table); range;
           range = ospf6_route_next (range))
        {
          prefix2str (&range->prefix, buf, sizeof (buf));
          vty_out (vty, " area %s range %s%s", oa->name, buf, VNL);
        }
    }
}

DEFUN (show_ipv6_ospf6_spf_tree,
       show_ipv6_ospf6_spf_tree_cmd,
       "show ipv6 ospf6 spf tree",
       SHOW_STR
       IP6_STR
       OSPF6_STR
       "Shortest Path First caculation\n"
       "Show SPF tree\n")
{
  listnode node;
  struct ospf6_area *oa;
  struct ospf6_vertex *root;
  struct ospf6_route *route;
  struct prefix prefix;

  ospf6_linkstate_prefix (ospf6->router_id, htonl (0), &prefix);
  for (node = listhead (ospf6->area_list); node; nextnode (node))
    {
      oa = (struct ospf6_area *) getdata (node);
      route = ospf6_route_lookup (&prefix, oa->spf_table);
      if (route == NULL)
        {
          vty_out (vty, "LS entry for root not found in area %s%s",
                   oa->name, VNL);
          continue;
        }
      root = (struct ospf6_vertex *) route->route_option;
      ospf6_spf_display_subtree (vty, "", 0, root);
    }

  return CMD_SUCCESS;
}

DEFUN (show_ipv6_ospf6_area_spf_tree,
       show_ipv6_ospf6_area_spf_tree_cmd,
       "show ipv6 ospf6 area A.B.C.D spf tree",
       SHOW_STR
       IP6_STR
       OSPF6_STR
       OSPF6_AREA_STR
       OSPF6_AREA_ID_STR
       "Shortest Path First caculation\n"
       "Show SPF tree\n")
{
  u_int32_t area_id;
  struct ospf6_area *oa;
  struct ospf6_vertex *root;
  struct ospf6_route *route;
  struct prefix prefix;

  ospf6_linkstate_prefix (ospf6->router_id, htonl (0), &prefix);

  if (inet_pton (AF_INET, argv[0], &area_id) != 1)
    {
      vty_out (vty, "Malformed Area-ID: %s%s", argv[0], VNL);
      return CMD_SUCCESS;
    }
  oa = ospf6_area_lookup (area_id, ospf6);
  if (oa == NULL)
    {
      vty_out (vty, "No such Area: %s%s", argv[0], VNL);
      return CMD_SUCCESS;
    }

  route = ospf6_route_lookup (&prefix, oa->spf_table);
  if (route == NULL)
    {
      vty_out (vty, "LS entry for root not found in area %s%s",
               oa->name, VNL);
      return CMD_SUCCESS;
    }
  root = (struct ospf6_vertex *) route->route_option;
  ospf6_spf_display_subtree (vty, "", 0, root);

  return CMD_SUCCESS;
}

DEFUN (show_ipv6_ospf6_simulate_spf_tree_root,
       show_ipv6_ospf6_simulate_spf_tree_root_cmd,
       "show ipv6 ospf6 simulate spf-tree A.B.C.D area A.B.C.D",
       SHOW_STR
       IP6_STR
       OSPF6_STR
       "Shortest Path First caculation\n"
       "Show SPF tree\n"
       "Specify root's router-id to calculate another router's SPF tree\n")
{
  u_int32_t area_id;
  struct ospf6_area *oa;
  struct ospf6_vertex *root;
  struct ospf6_route *route;
  struct prefix prefix;
  u_int32_t router_id;
  struct ospf6_route_table *spf_table;
  unsigned char tmp_debug_ospf6_spf = 0;

  inet_pton (AF_INET, argv[0], &router_id);
  ospf6_linkstate_prefix (router_id, htonl (0), &prefix);

  if (inet_pton (AF_INET, argv[1], &area_id) != 1)
    {
      vty_out (vty, "Malformed Area-ID: %s%s", argv[1], VNL);
      return CMD_SUCCESS;
    }
  oa = ospf6_area_lookup (area_id, ospf6);
  if (oa == NULL)
    {
      vty_out (vty, "No such Area: %s%s", argv[1], VNL);
      return CMD_SUCCESS;
    }

  tmp_debug_ospf6_spf = conf_debug_ospf6_spf;
  conf_debug_ospf6_spf = 0;

  spf_table = ospf6_route_table_create ();
  ospf6_spf_calculation (router_id, spf_table, oa);

  conf_debug_ospf6_spf = tmp_debug_ospf6_spf;

  route = ospf6_route_lookup (&prefix, spf_table);
  if (route == NULL)
    {
      ospf6_spf_table_finish (spf_table);
      ospf6_route_table_delete (spf_table);
      return CMD_SUCCESS;
    }
  root = (struct ospf6_vertex *) route->route_option;
  ospf6_spf_display_subtree (vty, "", 0, root);

  ospf6_spf_table_finish (spf_table);
  ospf6_route_table_delete (spf_table);

  return CMD_SUCCESS;
}

void
ospf6_area_init ()
{
  install_element (VIEW_NODE, &show_ipv6_ospf6_spf_tree_cmd);
  install_element (VIEW_NODE, &show_ipv6_ospf6_area_spf_tree_cmd);
  install_element (VIEW_NODE, &show_ipv6_ospf6_simulate_spf_tree_root_cmd);

  install_element (ENABLE_NODE, &show_ipv6_ospf6_spf_tree_cmd);
  install_element (ENABLE_NODE, &show_ipv6_ospf6_area_spf_tree_cmd);
  install_element (ENABLE_NODE, &show_ipv6_ospf6_simulate_spf_tree_root_cmd);

  install_element (OSPF6_NODE, &area_range_cmd);
  install_element (OSPF6_NODE, &area_range_advertise_cmd);
  install_element (OSPF6_NODE, &no_area_range_cmd);
}