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Diffstat (limited to 'lib/routemap.h')
| -rw-r--r-- | lib/routemap.h | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/lib/routemap.h b/lib/routemap.h new file mode 100644 index 000000000..e37f1e7b1 --- /dev/null +++ b/lib/routemap.h @@ -0,0 +1,194 @@ +/* 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 */ |