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Annotation of embedaddon/quagga/lib/table.h, revision 1.1.1.1

1.1       misho       1: /*
                      2:  * Routing Table
                      3:  * Copyright (C) 1998 Kunihiro Ishiguro
                      4:  *
                      5:  * This file is part of GNU Zebra.
                      6:  *
                      7:  * GNU Zebra is free software; you can redistribute it and/or modify it
                      8:  * under the terms of the GNU General Public License as published by the
                      9:  * Free Software Foundation; either version 2, or (at your option) any
                     10:  * later version.
                     11:  *
                     12:  * GNU Zebra is distributed in the hope that it will be useful, but
                     13:  * WITHOUT ANY WARRANTY; without even the implied warranty of
                     14:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
                     15:  * General Public License for more details.
                     16:  *
                     17:  * You should have received a copy of the GNU General Public License
                     18:  * along with GNU Zebra; see the file COPYING.  If not, write to the Free
                     19:  * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
                     20:  * 02111-1307, USA.  
                     21:  */
                     22: 
                     23: #ifndef _ZEBRA_TABLE_H
                     24: #define _ZEBRA_TABLE_H
                     25: 
                     26: /* Routing table top structure. */
                     27: struct route_table
                     28: {
                     29:   struct route_node *top;
                     30: };
                     31: 
                     32: /* Each routing entry. */
                     33: struct route_node
                     34: {
                     35:   /* Actual prefix of this radix. */
                     36:   struct prefix p;
                     37: 
                     38:   /* Tree link. */
                     39:   struct route_table *table;
                     40:   struct route_node *parent;
                     41:   struct route_node *link[2];
                     42: #define l_left   link[0]
                     43: #define l_right  link[1]
                     44: 
                     45:   /* Lock of this radix */
                     46:   unsigned int lock;
                     47: 
                     48:   /* Each node of route. */
                     49:   void *info;
                     50: 
                     51:   /* Aggregation. */
                     52:   void *aggregate;
                     53: };
                     54: 
                     55: /* Prototypes. */
                     56: extern struct route_table *route_table_init (void);
                     57: extern void route_table_finish (struct route_table *);
                     58: extern void route_unlock_node (struct route_node *node);
                     59: extern void route_node_delete (struct route_node *node);
                     60: extern struct route_node *route_top (struct route_table *);
                     61: extern struct route_node *route_next (struct route_node *);
                     62: extern struct route_node *route_next_until (struct route_node *,
                     63:                                             struct route_node *);
                     64: extern struct route_node *route_node_get (struct route_table *,
                     65:                                           struct prefix *);
                     66: extern struct route_node *route_node_lookup (struct route_table *,
                     67:                                              struct prefix *);
                     68: extern struct route_node *route_lock_node (struct route_node *node);
                     69: extern struct route_node *route_node_match (const struct route_table *,
                     70:                                             const struct prefix *);
                     71: extern struct route_node *route_node_match_ipv4 (const struct route_table *,
                     72:                                                 const struct in_addr *);
                     73: #ifdef HAVE_IPV6
                     74: extern struct route_node *route_node_match_ipv6 (const struct route_table *,
                     75:                                                 const struct in6_addr *);
                     76: #endif /* HAVE_IPV6 */
                     77: 
                     78: #endif /* _ZEBRA_TABLE_H */