74 lines
2.7 KiB
C
74 lines
2.7 KiB
C
/* $NetBSD: label.h,v 1.1 2010/12/08 07:20:14 kefren Exp $ */
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/*-
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* Copyright (c) 2010 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Mihai Chelaru <kefren@NetBSD.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _LABEL_H_
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#define _LABEL_H_
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#include <sys/queue.h>
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#include "mpls_routes.h"
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#include "ldp_peer.h"
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#define LDP_READD_NODEL 0
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#define LDP_READD_CHANGE 1
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#define LDP_READD_NOCHANGE 2
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/*
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* MPLS label descriptor
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*
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* so_dest and so_pref are obvious
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* so_gate is the IPV4 gate
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* binding is the local label
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* label is the peer associated label
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*/
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struct label {
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union sockunion so_dest, so_pref, so_gate;
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int binding, label;
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struct ldp_peer *p;
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SLIST_ENTRY(label) labels;
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};
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SLIST_HEAD(,label) label_head;
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void label_init(void);
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struct label * label_add(union sockunion *, union sockunion *,
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union sockunion *, uint32_t, struct ldp_peer *, uint32_t);
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void label_del(struct label *);
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void del_all_peer_labels(struct ldp_peer*, int);
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void label_reattach_all_peer_labels(struct ldp_peer*, int);
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void label_del_by_binding(uint32_t, int);
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struct label * label_get(union sockunion *sodest, union sockunion *sopref);
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struct label * label_get_by_prefix(struct in_addr*, int);
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uint32_t get_free_local_label(void);
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void change_local_label(struct label*, uint32_t);
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void label_reattach_route(struct label*, int);
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#endif /* !_LABEL_H_ */
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