ospf6d/ospf6_abr.h

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * Copyright (C) 2004 Yasuhiro Ohara
   4  */
   5
   6 #ifndef OSPF6_ABR_H
   7 #define OSPF6_ABR_H
   8
   9 /* for struct ospf6_route */
  10 #include "ospf6_route.h"
  11 /* for struct ospf6_prefix */
  12 #include "ospf6_proto.h"
  13
  14 /* Debug option */
  15 extern unsigned char conf_debug_ospf6_abr;
  16 #define OSPF6_DEBUG_ABR_ON() (conf_debug_ospf6_abr = 1)
  17 #define OSPF6_DEBUG_ABR_OFF() (conf_debug_ospf6_abr = 0)
  18 #define IS_OSPF6_DEBUG_ABR (conf_debug_ospf6_abr)
  19
  20 /* Inter-Area-Prefix-LSA */
  21 #define OSPF6_INTER_PREFIX_LSA_MIN_SIZE        4U /* w/o IPv6 prefix */
  22 struct ospf6_inter_prefix_lsa {
  23         uint32_t metric;
  24         struct ospf6_prefix prefix;
  25 };
  26
  27 /* Inter-Area-Router-LSA */
  28 #define OSPF6_INTER_ROUTER_LSA_FIX_SIZE       12U
  29 struct ospf6_inter_router_lsa {
  30         uint8_t mbz;
  31         uint8_t options[3];
  32         uint32_t metric;
  33         uint32_t router_id;
  34 };
  35
  36 #define OSPF6_ABR_SUMMARY_METRIC(E) (ntohl ((E)->metric & htonl (0x00ffffff)))
  37 #define OSPF6_ABR_SUMMARY_METRIC_SET(E, C)                                     \
  38         {                                                                      \
  39                 (E)->metric &= htonl(0x00000000);                              \
  40                 (E)->metric |= htonl(0x00ffffff) & htonl(C);                   \
  41         }
  42
  43 #define OSPF6_ABR_RANGE_CLEAR_COST(range) (range->path.cost = OSPF_AREA_RANGE_COST_UNSPEC)
  44 #define IS_OSPF6_ABR(o) ((o)->flag & OSPF6_FLAG_ABR)
  45
  46 extern bool ospf6_check_and_set_router_abr(struct ospf6 *o);
  47
  48 extern void ospf6_abr_enable_area(struct ospf6_area *oa);
  49 extern void ospf6_abr_disable_area(struct ospf6_area *oa);
  50
  51 extern int ospf6_abr_originate_summary_to_area(struct ospf6_route *route,
  52                                                struct ospf6_area *area);
  53 extern void ospf6_abr_originate_summary(struct ospf6_route *route,
  54                                         struct ospf6 *ospf6);
  55 extern void ospf6_abr_examin_summary(struct ospf6_lsa *lsa,
  56                                      struct ospf6_area *oa);
  57 extern void ospf6_abr_defaults_to_stub(struct ospf6 *ospf6);
  58 extern void ospf6_abr_examin_brouter(uint32_t router_id,
  59                                      struct ospf6_route *route,
  60                                      struct ospf6 *ospf6);
  61 extern void ospf6_abr_range_reset_cost(struct ospf6 *ospf6);
  62 extern void ospf6_abr_prefix_resummarize(struct ospf6 *ospf6);
  63
  64 extern int config_write_ospf6_debug_abr(struct vty *vty);
  65 extern void install_element_ospf6_debug_abr(void);
  66 extern int ospf6_abr_config_write(struct vty *vty);
  67 extern void ospf6_abr_old_route_remove(struct ospf6_lsa *lsa,
  68                                        struct ospf6_route *old,
  69                                        struct ospf6_route_table *table);
  70 extern void ospf6_abr_old_path_update(struct ospf6_route *old_route,
  71                                       struct ospf6_route *route,
  72                                       struct ospf6_route_table *table);
  73 extern void ospf6_abr_init(void);
  74 extern void ospf6_abr_range_update(struct ospf6_route *range,
  75                                    struct ospf6 *ospf6);
  76 extern void ospf6_abr_remove_unapproved_summaries(struct ospf6 *ospf6);
  77 extern int ospf6_ls_origin_same(struct ospf6_path *o_path,
  78                                 struct ospf6_path *r_path);
  79
  80 #endif /*OSPF6_ABR_H*/