xref: /freebsd/sys/netinet/udplite.h (revision b3e7694832e81d7a904a10f525f8797b753bf0d3)
1 /*-
2  * Copyright (c) 2014, Kevin Lo
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  */
26 
27 #ifndef _NETINET_UDPLITE_H_
28 #define	_NETINET_UDPLITE_H_
29 
30 /*
31  * UDP-Lite protocol header.
32  * Per RFC 3828, July, 2004.
33  */
34 struct udplitehdr {
35 	u_short	udplite_sport;		/* UDO-Lite source port */
36 	u_short	udplite_dport;		/* UDP-Lite destination port */
37 	u_short	udplite_coverage;	/* UDP-Lite checksum coverage */
38 	u_short	udplite_checksum;	/* UDP-Lite checksum */
39 };
40 
41 /*
42  * User-settable options (used with setsockopt).
43  */
44 #define	UDPLITE_SEND_CSCOV	2	/* Sender checksum coverage. */
45 #define	UDPLITE_RECV_CSCOV	4	/* Receiver checksum coverage. */
46 
47 #endif	/* !_NETINET_UDPLITE_H_ */
48