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/*
* BIRD -- OSPF
*
* (c) 1999 - 2000 Ondrej Filip <feela@network.cz>
*
* Can be freely distributed and used under the terms of the GNU GPL.
*/
#ifndef _BIRD_OSPF_TOPOLOGY_H_
#define _BIRD_OSPF_TOPOLOGY_H_
struct top_hash_entry { /* Index for fast mapping (type,rtrid,LSid)->vertex */
snode n;
struct top_hash_entry *next; /* Next in hash chain */
struct top_vertex *vertex;
u32 lsa_id, rtr_id;
u8 lsa_type;
#define LSA_T_RT 1
#define LSA_T_NET 2
#define LSA_T_SUM_NET 3
#define LSA_T_SUM_RT 4
#define LSA_T_EXT 5
u8 options;
u16 lsage;
#define LSA_MAXAGE 3600 /* 1 hour */
#define LSA_CHECKAGE 300 /* 5 minutes */
#define LSA_MAXAGEDIFF 900 /* 15 minutes */
u32 lsseqno;
u16 length, checksum;
#define LSA_INITSEQNO 0x80000001
#define LSA_MAXSEQNO 0x7fffffff
};
struct top_graph {
pool *pool; /* Pool we allocate from */
slab *hash_slab; /* Slab for hash entries */
struct top_hash_entry **hash_table; /* Hashing (modelled a`la fib) */
unsigned int hash_size;
unsigned int hash_order;
unsigned int hash_mask;
unsigned int hash_entries;
unsigned int hash_entries_min, hash_entries_max;
};
struct top_graph *ospf_top_new(struct proto_ospf *);
void ospf_top_free(struct top_graph *);
void ospf_top_dump(struct top_graph *);
struct top_hash_entry *ospf_hash_find(struct top_graph *, u32 lsa, u32 rtr, u32 type);
struct top_hash_entry *ospf_hash_get(struct top_graph *, u32 lsa, u32 rtr, u32 type);
void ospf_hash_delete(struct top_graph *, struct top_hash_entry *);
void addifa_rtlsa(struct ospf_iface *ifa);
struct top_graph_rtlsa {
u8 Vbit;
u8 Ebit;
u8 Bbit;
int links; /* Number of links */
struct top_graph_rtlsa_link *flink;
};
struct top_graph_rtlsa_link { /* FIXME Completely ignoring TOS */
u32 id;
u32 data;
u8 type;
u16 metric;
struct top_graph_rtlsa_link *next;
};
#endif /* _BIRD_OSPF_TOPOLOGY_H_ */
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