1/* Copyright (C) 1991-1993,1995-1997,2004,2009 Free Software Foundation, Inc.
2   This file is part of the GNU C Library.
3
4   The GNU C Library is free software; you can redistribute it and/or
5   modify it under the terms of the GNU Lesser General Public
6   License as published by the Free Software Foundation; either
7   version 2.1 of the License, or (at your option) any later version.
8
9   The GNU C Library is distributed in the hope that it will be useful,
10   but WITHOUT ANY WARRANTY; without even the implied warranty of
11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12   Lesser General Public License for more details.
13
14   You should have received a copy of the GNU Lesser General Public
15   License along with the GNU C Library; if not, write to the Free
16   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
17   02111-1307 USA.  */
18
19/*
20 * Copyright (C) 1982, 1986 Regents of the University of California.
21 * All rights reserved.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the above copyright
27 *    notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 *    notice, this list of conditions and the following disclaimer in the
30 *    documentation and/or other materials provided with the distribution.
31 * 4. Neither the name of the University nor the names of its contributors
32 *    may be used to endorse or promote products derived from this software
33 *    without specific prior written permission.
34 *
35 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
36 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
37 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
38 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
39 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
40 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
41 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
42 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
43 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
44 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
45 * SUCH DAMAGE.
46 */
47
48#ifndef __NETINET_UDP_H
49#define __NETINET_UDP_H    1
50
51#include <features.h>
52#include <sys/types.h>
53
54
55/* UDP header as specified by RFC 768, August 1980. */
56#ifdef __FAVOR_BSD
57
58struct udphdr
59{
60  u_int16_t uh_sport;		/* source port */
61  u_int16_t uh_dport;		/* destination port */
62  u_int16_t uh_ulen;		/* udp length */
63  u_int16_t uh_sum;		/* udp checksum */
64};
65
66#else
67
68struct udphdr
69{
70  u_int16_t source;
71  u_int16_t dest;
72  u_int16_t len;
73  u_int16_t check;
74};
75#endif
76
77/* UDP socket options */
78#define UDP_CORK	1	/* Never send partially complete segments.  */
79#define UDP_ENCAP	100	/* Set the socket to accept
80				   encapsulated packets.  */
81
82/* UDP encapsulation types */
83#define UDP_ENCAP_ESPINUDP_NON_IKE 1	/* draft-ietf-ipsec-nat-t-ike-00/01 */
84#define UDP_ENCAP_ESPINUDP	2	/* draft-ietf-ipsec-udp-encaps-06 */
85#define UDP_ENCAP_L2TPINUDP	3	/* rfc2661 */
86
87#define SOL_UDP            17      /* sockopt level for UDP */
88
89#endif /* netinet/udp.h */
90