1/* $NetBSD: pdu.h,v 1.2 2013/01/26 17:29:55 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 _PDU_H_
33#define _PDU_H_
34
35#include <sys/types.h>
36#include <netinet/in.h>
37
38#include "ldp_peer.h"
39
40#define	MIN_PDU_SIZE 10
41#define	MAX_PDU_SIZE 1300
42
43#define	PDU_VER_LENGTH (sizeof(uint16_t) + sizeof(uint16_t))
44#define	PDU_PAYLOAD_LENGTH (sizeof(struct in_addr) + sizeof(uint16_t))
45
46struct ldp_pdu {
47	uint16_t version;
48	uint16_t length;
49	/* draft-ietf-mpls-ldp-ipv6-07 keeps this IPv4 only for now */
50	struct in_addr  ldp_id;
51	uint16_t label_space;
52}               __packed;
53
54
55uint	get_pdu(const unsigned char *, struct ldp_pdu *);
56int	check_recv_pdu(const struct ldp_peer *, const struct ldp_pdu *, int);
57
58
59#endif	/* !_PDU_H_ */
60