bgpd/bgp_table.h

   1 /* BGP routing table
   2    Copyright (C) 1998, 2001 Kunihiro Ishiguro
   3
   4 This file is part of GNU Zebra.
   5
   6 GNU Zebra is free software; you can redistribute it and/or modify it
   7 under the terms of the GNU General Public License as published by the
   8 Free Software Foundation; either version 2, or (at your option) any
   9 later version.
  10
  11 GNU Zebra is distributed in the hope that it will be useful, but
  12 WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GNU Zebra; see the file COPYING.  If not, write to the Free
  18 Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  19 02111-1307, USA.  */
  20
  21 #ifndef _QUAGGA_BGP_TABLE_H
  22 #define _QUAGGA_BGP_TABLE_H
  23
  24 typedef enum
  25 {
  26   BGP_TABLE_MAIN,
  27   BGP_TABLE_RSCLIENT,
  28 } bgp_table_t;
  29
  30 struct bgp_table
  31 {
  32   bgp_table_t type;
  33
  34   /* afi/safi of this table */
  35   afi_t afi;
  36   safi_t safi;
  37
  38   /* The owner of this 'bgp_table' structure. */
  39   void *owner;
  40
  41   struct bgp_node *top;
  42
  43   unsigned long count;
  44 };
  45
  46 struct bgp_node
  47 {
  48   struct prefix p;
  49
  50   struct bgp_table *table;
  51   struct bgp_node *parent;
  52   struct bgp_node *link[2];
  53 #define l_left   link[0]
  54 #define l_right  link[1]
  55
  56   void *info;
  57
  58   struct bgp_adj_out *adj_out;
  59
  60   struct bgp_adj_in *adj_in;
  61
  62   struct bgp_node *prn;
  63
  64   unsigned int lock;
  65
  66   u_char flags;
  67 #define BGP_NODE_PROCESS_SCHEDULED      (1 << 0)
  68 };
  69
  70 extern struct bgp_table *bgp_table_init (afi_t, safi_t);
  71 extern void bgp_table_finish (struct bgp_table *);
  72 extern void bgp_unlock_node (struct bgp_node *node);
  73 extern void bgp_node_delete (struct bgp_node *node);
  74 extern struct bgp_node *bgp_table_top (struct bgp_table *);
  75 extern struct bgp_node *bgp_route_next (struct bgp_node *);
  76 extern struct bgp_node *bgp_route_next_until (struct bgp_node *, struct bgp_node *);
  77 extern struct bgp_node *bgp_node_get (struct bgp_table *, struct prefix *);
  78 extern struct bgp_node *bgp_node_lookup (struct bgp_table *, struct prefix *);
  79 extern struct bgp_node *bgp_lock_node (struct bgp_node *node);
  80 extern struct bgp_node *bgp_node_match (struct bgp_table *, struct prefix *);
  81 extern struct bgp_node *bgp_node_match_ipv4 (struct bgp_table *,
  82                                           struct in_addr *);
  83 #ifdef HAVE_IPV6
  84 extern struct bgp_node *bgp_node_match_ipv6 (struct bgp_table *,
  85                                           struct in6_addr *);
  86 #endif /* HAVE_IPV6 */
  87 extern unsigned long bgp_table_count (struct bgp_table *);
  88 #endif /* _QUAGGA_BGP_TABLE_H */