/* $NetBSD: label.h,v 1.8 2013/07/31 06:58:23 kefren Exp $ */
/*-
* Copyright (c) 2010 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Mihai Chelaru <
[email protected]>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _LABEL_H_
#define _LABEL_H_
#include <sys/rbtree.h>
#include "mpls_routes.h"
#include "ldp_peer.h"
#define REATT_INET_CHANGE 0
#define REATT_INET_DEL 1
#define REATT_INET_NODEL 2
/*
* MPLS label descriptor
*
* so_dest, so_pref and so_gate are the prefix identification and its GW
* binding is the local label
* label is the peer associated label
*/
struct label {
union sockunion so_dest, so_pref, so_gate;
int binding, label;
bool host; /* change routes using RTF_HOST */
const struct ldp_peer *p;
rb_node_t lbtree;
};
void label_init(void);
struct label * label_add(const union sockunion *, const union sockunion *,
const union sockunion *, uint32_t, const struct ldp_peer *, uint32_t,
bool);
void label_del(struct label *);
void del_all_peer_labels(const struct ldp_peer*, int);
void label_reattach_all_peer_labels(const struct ldp_peer*, int);
void label_del_by_binding(uint32_t, int);
struct label * label_get(const union sockunion *sodest,
const union sockunion *sopref);
struct label * label_get_by_prefix(const struct sockaddr *, int);
uint32_t get_free_local_label(void);
void announce_label_change(struct label *);
void label_reattach_route(struct label*, int);
void label_check_assoc(struct ldp_peer *p);
struct label * label_get_right(struct label *);
#endif /* !_LABEL_H_ */
