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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_BABEL,
RMAP_OSPF,
RMAP_OSPF6,
RMAP_BGP,
RMAP_ZEBRA
} 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;
/* Depth limit in RMAP recursion using RMAP_CALL. */
#define RMAP_RECURSION_LIMIT 10
/* Route map rule structure for matching and setting. */
struct route_map_rule_cmd
{
/* Route map rule name (e.g. as-path, metric) */
const 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)(const 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;
char *description;
/* 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;
/* If we're using "CALL", to which route-map do ew go? */
char *nextrm;
/* 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. */
extern void route_map_init (void);
extern void route_map_init_vty (void);
extern void route_map_finish (void);
/* Add match statement to route map. */
extern int route_map_add_match (struct route_map_index *index,
const char *match_name,
const char *match_arg);
/* Delete specified route match rule. */
extern int route_map_delete_match (struct route_map_index *index,
const char *match_name,
const char *match_arg);
/* Add route-map set statement to the route map. */
extern int route_map_add_set (struct route_map_index *index,
const char *set_name,
const char *set_arg);
/* Delete route map set rule. */
extern int route_map_delete_set (struct route_map_index *index,
const char *set_name,
const char *set_arg);
/* Install rule command to the match list. */
extern void route_map_install_match (struct route_map_rule_cmd *cmd);
/* Install rule command to the set list. */
extern void route_map_install_set (struct route_map_rule_cmd *cmd);
/* Lookup route map by name. */
extern struct route_map * route_map_lookup_by_name (const char *name);
/* Apply route map to the object. */
extern route_map_result_t route_map_apply (struct route_map *map,
struct prefix *,
route_map_object_t object_type,
void *object);
extern void route_map_add_hook (void (*func) (const char *));
extern void route_map_delete_hook (void (*func) (const char *));
extern void route_map_event_hook (void (*func) (route_map_event_t, const char *));
#endif /* _ZEBRA_ROUTEMAP_H */
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