package/broadcom-wl/src/driver/proto/bcmudp.h

   1 /*
   2  * Copyright 2007, 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   5  * This is UNPUBLISHED PROPRIETARY SOURCE CODE of Broadcom Corporation;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  * $Id$
  13  */
  14
  15 #ifndef _bcmudp_h_
  16 #define _bcmudp_h_
  17
  18 /* enable structure packing */
  19 #if defined(__GNUC__)
  20 #define PACKED  __attribute__((packed))
  21 #else
  22 #pragma pack(1)
  23 #define PACKED
  24 #endif
  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 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 } PACKED;
  42
  43 #undef PACKED
  44 #if !defined(__GNUC__)
  45 #pragma pack()
  46 #endif
  47
  48 #endif  /* #ifndef _bcmudp_h_ */