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54 lines
1.8 KiB
C
54 lines
1.8 KiB
C
/*
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* BIRD -- OSPF
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*
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* (c) 1999 - 2000 Ondrej Filip <feela@network.cz>
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*
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* Can be freely distributed and used under the terms of the GNU GPL.
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*/
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#ifndef _BIRD_OSPF_TOPOLOGY_H_
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#define _BIRD_OSPF_TOPOLOGY_H_
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struct top_hash_entry { /* Index for fast mapping (type,rtrid,LSid)->vertex */
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snode n;
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node cn;
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struct top_hash_entry *next; /* Next in hash chain */
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struct ospf_lsa_header lsa;
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void *lsa_body;
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bird_clock_t inst_t; /* Time of installation into DB */
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ip_addr nh; /* Next hop */
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struct iface *nhi;
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u16 dist; /* Distance from the root */
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u8 color;
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#define OUTSPF 0
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#define CANDIDATE 1
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#define INSPF 2
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u8 padding;
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};
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struct top_graph {
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pool *pool; /* Pool we allocate from */
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slab *hash_slab; /* Slab for hash entries */
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struct top_hash_entry **hash_table; /* Hashing (modelled a`la fib) */
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unsigned int hash_size;
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unsigned int hash_order;
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unsigned int hash_mask;
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unsigned int hash_entries;
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unsigned int hash_entries_min, hash_entries_max;
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};
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struct top_graph *ospf_top_new(struct proto_ospf *);
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void ospf_top_free(struct top_graph *);
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void ospf_top_dump(struct top_graph *);
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struct top_hash_entry *ospf_hash_find_header(struct top_graph *f, struct ospf_lsa_header *h);
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struct top_hash_entry *ospf_hash_get_header(struct top_graph *f, struct ospf_lsa_header *h);
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struct top_hash_entry *ospf_hash_find(struct top_graph *, u32 lsa, u32 rtr, u32 type);
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struct top_hash_entry *ospf_hash_get(struct top_graph *, u32 lsa, u32 rtr, u32 type);
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void ospf_hash_delete(struct top_graph *, struct top_hash_entry *);
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void addifa_rtlsa(struct ospf_iface *ifa);
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void originate_rt_lsa(struct ospf_area *oa,struct proto_ospf *po);
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void originate_net_lsa(struct ospf_iface *ifa,struct proto_ospf *po);
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int can_flush_lsa(struct ospf_area *oa);
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#endif /* _BIRD_OSPF_TOPOLOGY_H_ */
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