ospfd/ospf_lsdb.h

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * OSPF LSDB support.
   4  * Copyright (C) 1999, 2000 Alex Zinin, Kunihiro Ishiguro, Toshiaki Takada
   5  */
   6
   7 #ifndef _ZEBRA_OSPF_LSDB_H
   8 #define _ZEBRA_OSPF_LSDB_H
   9
  10 /* OSPF LSDB structure. */
  11 struct ospf_lsdb {
  12         struct {
  13                 unsigned long count;
  14                 unsigned long count_self;
  15                 unsigned int checksum;
  16                 struct route_table *db;
  17         } type[OSPF_MAX_LSA];
  18         unsigned long total;
  19 #define MONITOR_LSDB_CHANGE 1 /* XXX */
  20 #ifdef MONITOR_LSDB_CHANGE
  21         /* Hooks for callback functions to catch every add/del event. */
  22         int (*new_lsa_hook)(struct ospf_lsa *);
  23         int (*del_lsa_hook)(struct ospf_lsa *);
  24 #endif /* MONITOR_LSDB_CHANGE */
  25 };
  26
  27 /* Macros. */
  28 #define LSDB_LOOP(T, N, L)                                                     \
  29         if ((T) != NULL)                                                       \
  30                 for ((N) = route_top((T)); ((N)); ((N)) = route_next((N)))     \
  31                         if (((L) = (N)->info))
  32
  33 #define ROUTER_LSDB(A)       ((A)->lsdb->type[OSPF_ROUTER_LSA].db)
  34 #define NETWORK_LSDB(A)      ((A)->lsdb->type[OSPF_NETWORK_LSA].db)
  35 #define SUMMARY_LSDB(A)      ((A)->lsdb->type[OSPF_SUMMARY_LSA].db)
  36 #define ASBR_SUMMARY_LSDB(A) ((A)->lsdb->type[OSPF_ASBR_SUMMARY_LSA].db)
  37 #define EXTERNAL_LSDB(O)     ((O)->lsdb->type[OSPF_AS_EXTERNAL_LSA].db)
  38 #define NSSA_LSDB(A)         ((A)->lsdb->type[OSPF_AS_NSSA_LSA].db)
  39 #define OPAQUE_LINK_LSDB(A)  ((A)->lsdb->type[OSPF_OPAQUE_LINK_LSA].db)
  40 #define OPAQUE_AREA_LSDB(A)  ((A)->lsdb->type[OSPF_OPAQUE_AREA_LSA].db)
  41 #define OPAQUE_AS_LSDB(O)    ((O)->lsdb->type[OSPF_OPAQUE_AS_LSA].db)
  42
  43 #define AREA_LSDB(A,T)       ((A)->lsdb->type[(T)].db)
  44 #define AS_LSDB(O,T)         ((O)->lsdb->type[(T)].db)
  45
  46 /* OSPF LSDB related functions. */
  47 extern struct ospf_lsdb *ospf_lsdb_new(void);
  48 extern void ospf_lsdb_init(struct ospf_lsdb *);
  49 extern void ospf_lsdb_free(struct ospf_lsdb *);
  50 extern void ospf_lsdb_cleanup(struct ospf_lsdb *);
  51 extern void ls_prefix_set(struct prefix_ls *lp, struct ospf_lsa *lsa);
  52 extern void ospf_lsdb_add(struct ospf_lsdb *, struct ospf_lsa *);
  53 extern void ospf_lsdb_delete(struct ospf_lsdb *, struct ospf_lsa *);
  54 extern void ospf_lsdb_delete_all(struct ospf_lsdb *);
  55 extern struct ospf_lsa *ospf_lsdb_lookup(struct ospf_lsdb *, struct ospf_lsa *);
  56 extern struct ospf_lsa *ospf_lsdb_lookup_by_id(struct ospf_lsdb *, uint8_t,
  57                                                struct in_addr, struct in_addr);
  58 extern struct ospf_lsa *ospf_lsdb_lookup_by_id_next(struct ospf_lsdb *, uint8_t,
  59                                                     struct in_addr,
  60                                                     struct in_addr, int);
  61 extern unsigned long ospf_lsdb_count_all(struct ospf_lsdb *);
  62 extern unsigned long ospf_lsdb_count(struct ospf_lsdb *, int);
  63 extern unsigned long ospf_lsdb_count_self(struct ospf_lsdb *, int);
  64 extern unsigned int ospf_lsdb_checksum(struct ospf_lsdb *, int);
  65 extern unsigned long ospf_lsdb_isempty(struct ospf_lsdb *);
  66
  67 #endif /* _ZEBRA_OSPF_LSDB_H */