90 lines
3.3 KiB
C
90 lines
3.3 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* OSPF LSDB support.
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* Copyright (C) 1999, 2000 Alex Zinin, Kunihiro Ishiguro, Toshiaki Takada
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*/
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#ifndef _ZEBRA_OSPF_LSDB_H
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#define _ZEBRA_OSPF_LSDB_H
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#include "prefix.h"
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#include "table.h"
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/* OSPF LSDB structure. */
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struct ospf_lsdb {
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struct {
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unsigned long count;
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unsigned long count_self;
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unsigned int checksum;
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struct route_table *db;
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} type[OSPF_MAX_LSA];
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unsigned long total;
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#define MONITOR_LSDB_CHANGE 1 /* XXX */
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#ifdef MONITOR_LSDB_CHANGE
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/* Hooks for callback functions to catch every add/del event. */
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int (*new_lsa_hook)(struct ospf_lsa *);
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int (*del_lsa_hook)(struct ospf_lsa *);
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#endif /* MONITOR_LSDB_CHANGE */
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};
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/* Macros. */
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#define LSDB_LOOP(T, N, L) \
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if ((T) != NULL) \
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for ((N) = route_top((T)); ((N)); ((N)) = route_next((N))) \
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if (((L) = (N)->info))
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#define ROUTER_LSDB(A) ((A)->lsdb->type[OSPF_ROUTER_LSA].db)
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#define NETWORK_LSDB(A) ((A)->lsdb->type[OSPF_NETWORK_LSA].db)
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#define SUMMARY_LSDB(A) ((A)->lsdb->type[OSPF_SUMMARY_LSA].db)
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#define ASBR_SUMMARY_LSDB(A) ((A)->lsdb->type[OSPF_ASBR_SUMMARY_LSA].db)
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#define EXTERNAL_LSDB(O) ((O)->lsdb->type[OSPF_AS_EXTERNAL_LSA].db)
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#define NSSA_LSDB(A) ((A)->lsdb->type[OSPF_AS_NSSA_LSA].db)
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#define OPAQUE_LINK_LSDB(A) ((A)->lsdb->type[OSPF_OPAQUE_LINK_LSA].db)
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#define OPAQUE_AREA_LSDB(A) ((A)->lsdb->type[OSPF_OPAQUE_AREA_LSA].db)
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#define OPAQUE_AS_LSDB(O) ((O)->lsdb->type[OSPF_OPAQUE_AS_LSA].db)
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#define AREA_LSDB(A,T) ((A)->lsdb->type[(T)].db)
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#define AS_LSDB(O,T) ((O)->lsdb->type[(T)].db)
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/*
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* Alternate route node structure for LSDB nodes linked to
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* list elements.
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*/
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struct ospf_lsdb_linked_node {
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/*
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* Caution these must be the very first fields
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*/
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ROUTE_NODE_FIELDS
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/*
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* List entry on an LSA list, e.g., a neighbor
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* retransmission list.
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*/
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struct ospf_lsa_list_entry *lsa_list_entry;
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};
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/* OSPF LSDB related functions. */
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extern struct ospf_lsdb *ospf_lsdb_new(void);
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extern void ospf_lsdb_init(struct ospf_lsdb *);
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extern void ospf_lsdb_linked_init(struct ospf_lsdb *lsdb);
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extern struct ospf_lsdb_linked_node *
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ospf_lsdb_linked_lookup(struct ospf_lsdb *lsdb, struct ospf_lsa *lsa);
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extern void ospf_lsdb_free(struct ospf_lsdb *);
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extern void ospf_lsdb_cleanup(struct ospf_lsdb *);
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extern void ls_prefix_set(struct prefix_ls *lp, struct ospf_lsa *lsa);
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extern void ospf_lsdb_add(struct ospf_lsdb *, struct ospf_lsa *);
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extern void ospf_lsdb_delete(struct ospf_lsdb *, struct ospf_lsa *);
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extern void ospf_lsdb_delete_all(struct ospf_lsdb *);
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extern struct ospf_lsa *ospf_lsdb_lookup(struct ospf_lsdb *, struct ospf_lsa *);
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extern struct ospf_lsa *ospf_lsdb_lookup_by_id(struct ospf_lsdb *, uint8_t,
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struct in_addr, struct in_addr);
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extern struct ospf_lsa *ospf_lsdb_lookup_by_id_next(struct ospf_lsdb *, uint8_t,
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struct in_addr,
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struct in_addr, int);
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extern unsigned long ospf_lsdb_count_all(struct ospf_lsdb *);
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extern unsigned long ospf_lsdb_count(struct ospf_lsdb *, int);
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extern unsigned long ospf_lsdb_count_self(struct ospf_lsdb *, int);
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extern unsigned int ospf_lsdb_checksum(struct ospf_lsdb *, int);
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extern unsigned long ospf_lsdb_isempty(struct ospf_lsdb *);
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#endif /* _ZEBRA_OSPF_LSDB_H */
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