routemap.h
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上传日期:2009-11-15
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- /* Route map function.
- * Copyright (C) 1998 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 _ZEBRA_ROUTEMAP_H
- #define _ZEBRA_ROUTEMAP_H
- /* Route map's type. */
- enum route_map_type
- {
- RMAP_PERMIT,
- RMAP_DENY,
- RMAP_ANY
- };
- typedef enum
- {
- RMAP_MATCH,
- RMAP_DENYMATCH,
- RMAP_NOMATCH,
- RMAP_ERROR,
- RMAP_OKAY
- } route_map_result_t;
- typedef enum
- {
- RMAP_RIP,
- RMAP_RIPNG,
- RMAP_OSPF,
- RMAP_OSPF6,
- RMAP_BGP
- } route_map_object_t;
- typedef enum
- {
- RMAP_EXIT,
- RMAP_GOTO,
- RMAP_NEXT
- } route_map_end_t;
- typedef enum
- {
- RMAP_EVENT_SET_ADDED,
- RMAP_EVENT_SET_DELETED,
- RMAP_EVENT_SET_REPLACED,
- RMAP_EVENT_MATCH_ADDED,
- RMAP_EVENT_MATCH_DELETED,
- RMAP_EVENT_MATCH_REPLACED,
- RMAP_EVENT_INDEX_ADDED,
- RMAP_EVENT_INDEX_DELETED
- } route_map_event_t;
- /* Route map rule structure for matching and setting. */
- struct route_map_rule_cmd
- {
- /* Route map rule name (e.g. as-path, metric) */
- char *str;
- /* Function for value set or match. */
- route_map_result_t (*func_apply)(void *, struct prefix *,
- route_map_object_t, void *);
- /* Compile argument and return result as void *. */
- void *(*func_compile)(char *);
- /* Free allocated value by func_compile (). */
- void (*func_free)(void *);
- };
- /* Route map apply error. */
- enum
- {
- /* Route map rule is missing. */
- RMAP_RULE_MISSING = 1,
- /* Route map rule can't compile */
- RMAP_COMPILE_ERROR
- };
- /* Route map rule list. */
- struct route_map_rule_list
- {
- struct route_map_rule *head;
- struct route_map_rule *tail;
- };
- /* Route map index structure. */
- struct route_map_index
- {
- struct route_map *map;
- /* Preference of this route map rule. */
- int pref;
- /* Route map type permit or deny. */
- enum route_map_type type;
- /* Do we follow old rules, or hop forward? */
- route_map_end_t exitpolicy;
- /* If we're using "GOTO", to where do we go? */
- int nextpref;
- /* Matching rule list. */
- struct route_map_rule_list match_list;
- struct route_map_rule_list set_list;
- /* Make linked list. */
- struct route_map_index *next;
- struct route_map_index *prev;
- };
- /* Route map list structure. */
- struct route_map
- {
- /* Name of route map. */
- char *name;
- /* Route map's rule. */
- struct route_map_index *head;
- struct route_map_index *tail;
- /* Make linked list. */
- struct route_map *next;
- struct route_map *prev;
- };
- /* Prototypes. */
- void route_map_init ();
- void route_map_init_vty ();
- /* Add match statement to route map. */
- int
- route_map_add_match (struct route_map_index *index,
- char *match_name,
- char *match_arg);
- /* Delete specified route match rule. */
- int
- route_map_delete_match (struct route_map_index *index,
- char *match_name,
- char *match_arg);
- /* Add route-map set statement to the route map. */
- int
- route_map_add_set (struct route_map_index *index,
- char *set_name,
- char *set_arg);
- /* Delete route map set rule. */
- int
- route_map_delete_set (struct route_map_index *index, char *set_name,
- char *set_arg);
- /* Install rule command to the match list. */
- void
- route_map_install_match (struct route_map_rule_cmd *cmd);
- /* Install rule command to the set list. */
- void
- route_map_install_set (struct route_map_rule_cmd *cmd);
- /* Lookup route map by name. */
- struct route_map *
- route_map_lookup_by_name (char *name);
- /* Apply route map to the object. */
- route_map_result_t
- route_map_apply (struct route_map *map, struct prefix *,
- route_map_object_t object_type, void *object);
- void route_map_add_hook (void (*func) (char *));
- void route_map_delete_hook (void (*func) (char *));
- void route_map_event_hook (void (*func) (route_map_event_t, char *));
- #endif /* _ZEBRA_ROUTEMAP_H */