1 /* $NetBSD: label.h,v 1.8 2013/07/31 06:58:23 kefren Exp $ */ 2 3 /*- 4 * Copyright (c) 2010 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Mihai Chelaru <kefren@NetBSD.org> 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #ifndef _LABEL_H_ 33 #define _LABEL_H_ 34 35 #include <sys/rbtree.h> 36 37 #include "mpls_routes.h" 38 #include "ldp_peer.h" 39 40 #define REATT_INET_CHANGE 0 41 #define REATT_INET_DEL 1 42 #define REATT_INET_NODEL 2 43 44 /* 45 * MPLS label descriptor 46 * 47 * so_dest, so_pref and so_gate are the prefix identification and its GW 48 * binding is the local label 49 * label is the peer associated label 50 */ 51 struct label { 52 union sockunion so_dest, so_pref, so_gate; 53 int binding, label; 54 bool host; /* change routes using RTF_HOST */ 55 const struct ldp_peer *p; 56 rb_node_t lbtree; 57 }; 58 59 void label_init(void); 60 struct label * label_add(const union sockunion *, const union sockunion *, 61 const union sockunion *, uint32_t, const struct ldp_peer *, uint32_t, 62 bool); 63 void label_del(struct label *); 64 void del_all_peer_labels(const struct ldp_peer*, int); 65 void label_reattach_all_peer_labels(const struct ldp_peer*, int); 66 void label_del_by_binding(uint32_t, int); 67 struct label * label_get(const union sockunion *sodest, 68 const union sockunion *sopref); 69 struct label * label_get_by_prefix(const struct sockaddr *, int); 70 uint32_t get_free_local_label(void); 71 void announce_label_change(struct label *); 72 void label_reattach_route(struct label*, int); 73 void label_check_assoc(struct ldp_peer *p); 74 struct label * label_get_right(struct label *); 75 76 #endif /* !_LABEL_H_ */ 77