119 lines
4.1 KiB
C
119 lines
4.1 KiB
C
/* $NetBSD: ldp_peer.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 _LDP_PEER_H_
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#define _LDP_PEER_H_
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#include "sys/types.h"
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#include "sys/queue.h"
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#include "netinet/in.h"
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#include "tlv.h"
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struct ldp_peer_address {
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struct in_addr address;
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SLIST_ENTRY(ldp_peer_address) addresses;
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};
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struct label_mapping {
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struct in_addr address;
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int prefix;
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int label;
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SLIST_ENTRY(label_mapping) mappings;
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};
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struct ldp_peer {
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/*
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* I add routes to address.
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* I maintain LDP TCP connection on transport_address.
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* I use ldp_id as peer identificator.
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*/
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struct in_addr address, transport_address, ldp_id;
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/* TCP socket */
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int socket;
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/* Usual peer parameters */
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uint16_t holdtime, timeout;
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int master; /* 0 if we're passive */
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int state; /* see below for possible states */
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time_t established_t; /* time when it did connected */
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/* Here I maintain all the addresses announced by a peer */
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SLIST_HEAD(,ldp_peer_address) ldp_peer_address_head;
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SLIST_HEAD(,label_mapping) label_mapping_head;
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SLIST_ENTRY(ldp_peer) peers;
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};
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SLIST_HEAD(,ldp_peer) ldp_peer_head;
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struct peer_map {
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struct ldp_peer *peer;
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struct label_mapping *lm;
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};
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/* LDP Peers States */
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#define LDP_PEER_CONNECTING 0
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#define LDP_PEER_CONNECTED 1
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#define LDP_PEER_ESTABLISHED 2
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#define LDP_PEER_HOLDDOWN 3
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void ldp_peer_init(void);
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struct ldp_peer * ldp_peer_new(struct in_addr *, struct in_addr *,
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struct in_addr *, uint16_t, int);
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void ldp_peer_holddown(struct ldp_peer *);
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void ldp_peer_delete(struct ldp_peer *);
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struct ldp_peer * get_ldp_peer(struct in_addr *);
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struct ldp_peer * get_ldp_peer_by_socket(int);
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int add_ifaddresses(struct ldp_peer *, struct al_tlv *);
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int add_ifaddr(struct ldp_peer *, struct in_addr *);
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int del_ifaddr(struct ldp_peer *, struct in_addr *);
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struct ldp_peer_address * check_ifaddr(struct ldp_peer *,
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struct in_addr *);
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void print_bounded_addresses(struct ldp_peer *);
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void del_all_ifaddr(struct ldp_peer *);
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int del_ifaddresses(struct ldp_peer *, struct al_tlv *);
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void add_my_if_addrs(struct in_addr *, int);
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int ldp_peer_add_mapping(struct ldp_peer *, struct in_addr *,
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int, int);
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int ldp_peer_delete_mapping(struct ldp_peer *, struct in_addr *,
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int);
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struct label_mapping * ldp_peer_get_lm(struct ldp_peer *, struct in_addr *,
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int);
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int ldp_peer_delete_all_mappings(struct ldp_peer *);
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void ldp_peer_holddown_all(void);
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struct peer_map * ldp_test_mapping(struct in_addr *, int,
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struct in_addr *);
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const char * ldp_state_to_name(int);
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#endif /* !_LDP_PEER_H_ */
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