release/src-rt-6.x.4708/include/proto/bcmudp.h

   1 /*
   2  * Copyright (C) 2012, Broadcom Corporation
   3  * All Rights Reserved.
   4  *
   5  * This is UNPUBLISHED PROPRIETARY SOURCE CODE of Broadcom Corporation;
   6  * the contents of this file may not be disclosed to third parties, copied
   7  * or duplicated in any form, in whole or in part, without the prior
   8  * written permission of Broadcom Corporation.
   9  *
  10  * Fundamental constants relating to UDP Protocol
  11  *
  12  * $Id: bcmudp.h 241182 2011-02-17 21:50:03Z $
  13  */
  14
  15 #ifndef _bcmudp_h_
  16 #define _bcmudp_h_
  17
  18 #ifndef _TYPEDEFS_H_
  19 #include <typedefs.h>
  20 #endif
  21
  22 /* This marks the start of a packed structure section. */
  23 #include <packed_section_start.h>
  24
  25
  26 /* UDP header */
  27 #define UDP_DEST_PORT_OFFSET    2       /* UDP dest port offset */
  28 #define UDP_LEN_OFFSET          4       /* UDP length offset */
  29 #define UDP_CHKSUM_OFFSET       6       /* UDP body checksum offset */
  30
  31 #define UDP_HDR_LEN     8       /* UDP header length */
  32 #define UDP_PORT_LEN    2       /* UDP port length */
  33
  34 /* These fields are stored in network order */
  35 BWL_PRE_PACKED_STRUCT struct bcmudp_hdr
  36 {
  37         uint16  src_port;       /* Source Port Address */
  38         uint16  dst_port;       /* Destination Port Address */
  39         uint16  len;            /* Number of bytes in datagram including header */
  40         uint16  chksum;         /* entire datagram checksum with pseudoheader */
  41 } BWL_POST_PACKED_STRUCT;
  42
  43 /* This marks the end of a packed structure section. */
  44 #include <packed_section_end.h>
  45
  46 #endif  /* #ifndef _bcmudp_h_ */