sys/netinet/udplite.h

   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_ */