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[mirror_frr.git] / bgpd / bgp_table.h

/* BGP routing table
   Copyright (C) 1998, 2001 Kunihiro Ishiguro

This file is part of GNU Zebra.

GNU Zebra is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2, or (at your option) any
later version.

GNU Zebra is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
General Public License for more details.

You should have received a copy of the GNU General Public License
along with GNU Zebra; see the file COPYING.  If not, write to the Free
Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA.  */

#ifndef _QUAGGA_BGP_TABLE_H
#define _QUAGGA_BGP_TABLE_H

typedef enum
{
  BGP_TABLE_MAIN,
  BGP_TABLE_RSCLIENT,
} bgp_table_t;

struct bgp_table
{
  bgp_table_t type;

  /* The owner of this 'bgp_table' structure. */
  void *owner;

  struct bgp_node *top;
};

struct bgp_node
{
  struct prefix p;

  struct bgp_table *table;
  struct bgp_node *parent;
  struct bgp_node *link[2];
#define l_left   link[0]
#define l_right  link[1]

  unsigned int lock;

  void *info;

  struct bgp_adj_out *adj_out;

  struct bgp_adj_in *adj_in;

  void *aggregate;

  struct bgp_node *prn;

  u_char flags;
#define BGP_NODE_PROCESS_SCHEDULED	(1 << 0)
};

extern struct bgp_table *bgp_table_init (void);
extern void bgp_table_finish (struct bgp_table *);
extern void bgp_unlock_node (struct bgp_node *node);
extern void bgp_node_delete (struct bgp_node *node);
extern struct bgp_node *bgp_table_top (struct bgp_table *);
extern struct bgp_node *bgp_route_next (struct bgp_node *);
extern struct bgp_node *bgp_route_next_until (struct bgp_node *, struct bgp_node *);
extern struct bgp_node *bgp_node_get (struct bgp_table *, struct prefix *);
extern struct bgp_node *bgp_node_lookup (struct bgp_table *, struct prefix *);
extern struct bgp_node *bgp_lock_node (struct bgp_node *node);
extern struct bgp_node *bgp_node_match (struct bgp_table *, struct prefix *);
extern struct bgp_node *bgp_node_match_ipv4 (struct bgp_table *,
					  struct in_addr *);
#ifdef HAVE_IPV6
extern struct bgp_node *bgp_node_match_ipv6 (struct bgp_table *,
					  struct in6_addr *);
#endif /* HAVE_IPV6 */

#endif /* _QUAGGA_BGP_TABLE_H */