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/*
* Zebra next hop tracking header
* Copyright (C) 2013 Cumulus Networks, Inc.
*
* 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_RNH_H
#define _ZEBRA_RNH_H
#include "prefix.h"
#include "vty.h"
/* Nexthop structure. */
struct rnh {
uint8_t flags;
#define ZEBRA_NHT_CONNECTED 0x1
#define ZEBRA_NHT_DELETED 0x2
#define ZEBRA_NHT_EXACT_MATCH 0x4
/* VRF identifier. */
vrf_id_t vrf_id;
struct route_entry *state;
struct prefix resolved_route;
struct list *client_list;
/* pseudowires dependent on this nh */
struct list *zebra_pseudowire_list;
struct route_node *node;
/*
* if this has been filtered for the client
*/
int filtered[ZEBRA_ROUTE_MAX];
};
typedef enum { RNH_NEXTHOP_TYPE, RNH_IMPORT_CHECK_TYPE } rnh_type_t;
extern int zebra_rnh_ip_default_route;
extern int zebra_rnh_ipv6_default_route;
extern void zebra_rnh_init(void);
static inline int rnh_resolve_via_default(int family)
{
if (((family == AF_INET) && zebra_rnh_ip_default_route)
|| ((family == AF_INET6) && zebra_rnh_ipv6_default_route))
return 1;
else
return 0;
}
extern struct rnh *zebra_add_rnh(struct prefix *p, vrf_id_t vrfid,
rnh_type_t type, bool *exists);
extern struct rnh *zebra_lookup_rnh(struct prefix *p, vrf_id_t vrfid,
rnh_type_t type);
extern void zebra_free_rnh(struct rnh *rnh);
extern void zebra_add_rnh_client(struct rnh *rnh, struct zserv *client,
rnh_type_t type, vrf_id_t vrfid);
extern void zebra_register_rnh_pseudowire(vrf_id_t, struct zebra_pw *);
extern void zebra_deregister_rnh_pseudowire(vrf_id_t, struct zebra_pw *);
extern void zebra_remove_rnh_client(struct rnh *rnh, struct zserv *client,
rnh_type_t type);
extern void zebra_evaluate_rnh(struct zebra_vrf *zvrf, afi_t afi, int force,
rnh_type_t type, struct prefix *p);
extern void zebra_print_rnh_table(vrf_id_t vrfid, afi_t afi, struct vty *vty,
rnh_type_t);
extern char *rnh_str(struct rnh *rnh, char *buf, int size);
#endif /*_ZEBRA_RNH_H */
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