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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 this program; see the file COPYING; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef _ZEBRA_ROUTEMAP_H
#define _ZEBRA_ROUTEMAP_H
#include "prefix.h"
#include "memory.h"
#include "qobj.h"
#include "vty.h"
DECLARE_MTYPE(ROUTE_MAP_NAME)
DECLARE_MTYPE(ROUTE_MAP_RULE)
DECLARE_MTYPE(ROUTE_MAP_COMPILED)
/* 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,
RMAP_ZEBRA,
RMAP_ISIS,
} 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,
RMAP_EVENT_CALL_ADDED, /* call to another routemap added */
RMAP_EVENT_CALL_DELETED,
RMAP_EVENT_PLIST_ADDED,
RMAP_EVENT_PLIST_DELETED,
RMAP_EVENT_CLIST_ADDED,
RMAP_EVENT_CLIST_DELETED,
RMAP_EVENT_ECLIST_ADDED,
RMAP_EVENT_ECLIST_DELETED,
RMAP_EVENT_LLIST_ADDED,
RMAP_EVENT_LLIST_DELETED,
RMAP_EVENT_ASLIST_ADDED,
RMAP_EVENT_ASLIST_DELETED,
RMAP_EVENT_FILTER_ADDED,
RMAP_EVENT_FILTER_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 {
RMAP_COMPILE_SUCCESS,
/* Route map rule is missing. */
RMAP_RULE_MISSING,
/* 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;
QOBJ_FIELDS
};
DECLARE_QOBJ_TYPE(route_map_index)
/* 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;
/* Maintain update info */
int to_be_processed; /* True if modification isn't acted on yet */
int deleted; /* If 1, then this node will be deleted */
QOBJ_FIELDS
};
DECLARE_QOBJ_TYPE(route_map)
/* Prototypes. */
extern void route_map_init(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);
extern const char *route_map_get_match_arg(struct route_map_index *index,
const char *match_name);
/* 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.
*
* When installing a particular item, Allow a difference of handling
* of bad cli inputted(return NULL) -vs- this particular daemon cannot use
* this form of the command(return a pointer and handle it appropriately
* in the apply command). See 'set metric' command
* as it is handled in ripd/ripngd and ospfd.
*/
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 *));
extern int route_map_mark_updated(const char *name, int deleted);
extern int route_map_clear_updated(struct route_map *rmap);
extern void route_map_walk_update_list(int (*update_fn)(char *name));
extern void route_map_upd8_dependency(route_map_event_t type, const char *arg,
const char *rmap_name);
extern void route_map_notify_dependencies(const char *affected_name,
route_map_event_t event);
extern int generic_match_add(struct vty *vty, struct route_map_index *index,
const char *command, const char *arg,
route_map_event_t type);
extern int generic_match_delete(struct vty *vty, struct route_map_index *index,
const char *command, const char *arg,
route_map_event_t type);
extern int generic_set_add(struct vty *vty, struct route_map_index *index,
const char *command, const char *arg);
extern int generic_set_delete(struct vty *vty, struct route_map_index *index,
const char *command, const char *arg);
/* match interface */
extern void route_map_match_interface_hook(int (*func)(
struct vty *vty, struct route_map_index *index, const char *command,
const char *arg, route_map_event_t type));
/* no match interface */
extern void route_map_no_match_interface_hook(int (*func)(
struct vty *vty, struct route_map_index *index, const char *command,
const char *arg, route_map_event_t type));
/* match ip address */
extern void route_map_match_ip_address_hook(int (*func)(
struct vty *vty, struct route_map_index *index, const char *command,
const char *arg, route_map_event_t type));
/* no match ip address */
extern void route_map_no_match_ip_address_hook(int (*func)(
struct vty *vty, struct route_map_index *index, const char *command,
const char *arg, route_map_event_t type));
/* match ip address prefix list */
extern void route_map_match_ip_address_prefix_list_hook(int (*func)(
struct vty *vty, struct route_map_index *index, const char *command,
const char *arg, route_map_event_t type));
/* no match ip address prefix list */
extern void route_map_no_match_ip_address_prefix_list_hook(int (*func)(
struct vty *vty, struct route_map_index *index, const char *command,
const char *arg, route_map_event_t type));
/* match ip next hop */
extern void route_map_match_ip_next_hop_hook(int (*func)(
struct vty *vty, struct route_map_index *index, const char *command,
const char *arg, route_map_event_t type));
/* no match ip next hop */
extern void route_map_no_match_ip_next_hop_hook(int (*func)(
struct vty *vty, struct route_map_index *index, const char *command,
const char *arg, route_map_event_t type));
/* match ip next hop prefix list */
extern void route_map_match_ip_next_hop_prefix_list_hook(int (*func)(
struct vty *vty, struct route_map_index *index, const char *command,
const char *arg, route_map_event_t type));
/* no match ip next hop prefix list */
extern void route_map_no_match_ip_next_hop_prefix_list_hook(int (*func)(
struct vty *vty, struct route_map_index *index, const char *command,
const char *arg, route_map_event_t type));
/* match ipv6 address */
extern void route_map_match_ipv6_address_hook(int (*func)(
struct vty *vty, struct route_map_index *index, const char *command,
const char *arg, route_map_event_t type));
/* no match ipv6 address */
extern void route_map_no_match_ipv6_address_hook(int (*func)(
struct vty *vty, struct route_map_index *index, const char *command,
const char *arg, route_map_event_t type));
/* match ipv6 address prefix list */
extern void route_map_match_ipv6_address_prefix_list_hook(int (*func)(
struct vty *vty, struct route_map_index *index, const char *command,
const char *arg, route_map_event_t type));
/* no match ipv6 address prefix list */
extern void route_map_no_match_ipv6_address_prefix_list_hook(int (*func)(
struct vty *vty, struct route_map_index *index, const char *command,
const char *arg, route_map_event_t type));
/* match metric */
extern void route_map_match_metric_hook(int (*func)(
struct vty *vty, struct route_map_index *index, const char *command,
const char *arg, route_map_event_t type));
/* no match metric */
extern void route_map_no_match_metric_hook(int (*func)(
struct vty *vty, struct route_map_index *index, const char *command,
const char *arg, route_map_event_t type));
/* match tag */
extern void route_map_match_tag_hook(int (*func)(
struct vty *vty, struct route_map_index *index, const char *command,
const char *arg, route_map_event_t type));
/* no match tag */
extern void route_map_no_match_tag_hook(int (*func)(
struct vty *vty, struct route_map_index *index, const char *command,
const char *arg, route_map_event_t type));
/* set ip nexthop */
extern void route_map_set_ip_nexthop_hook(
int (*func)(struct vty *vty, struct route_map_index *index,
const char *command, const char *arg));
/* no set ip nexthop */
extern void route_map_no_set_ip_nexthop_hook(
int (*func)(struct vty *vty, struct route_map_index *index,
const char *command, const char *arg));
/* set ipv6 nexthop local */
extern void route_map_set_ipv6_nexthop_local_hook(
int (*func)(struct vty *vty, struct route_map_index *index,
const char *command, const char *arg));
/* no set ipv6 nexthop local */
extern void route_map_no_set_ipv6_nexthop_local_hook(
int (*func)(struct vty *vty, struct route_map_index *index,
const char *command, const char *arg));
/* set metric */
extern void route_map_set_metric_hook(int (*func)(struct vty *vty,
struct route_map_index *index,
const char *command,
const char *arg));
/* no set metric */
extern void route_map_no_set_metric_hook(
int (*func)(struct vty *vty, struct route_map_index *index,
const char *command, const char *arg));
/* set tag */
extern void route_map_set_tag_hook(int (*func)(struct vty *vty,
struct route_map_index *index,
const char *command,
const char *arg));
/* no set tag */
extern void route_map_no_set_tag_hook(int (*func)(struct vty *vty,
struct route_map_index *index,
const char *command,
const char *arg));
extern void *route_map_rule_tag_compile(const char *arg);
extern void route_map_rule_tag_free(void *rule);
#endif /* _ZEBRA_ROUTEMAP_H */
|
