796a9d1091
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@15242 3c298f89-4303-0410-b956-a3cf2f4a3e73
47 lines
1.3 KiB
C
47 lines
1.3 KiB
C
/*
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* Copyright 2007, Broadcom Corporation
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* All Rights Reserved.
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*
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* This is UNPUBLISHED PROPRIETARY SOURCE CODE of Broadcom Corporation;
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* the contents of this file may not be disclosed to third parties, copied
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* or duplicated in any form, in whole or in part, without the prior
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* written permission of Broadcom Corporation.
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*
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* Fundamental constants relating to UDP Protocol
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*
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*/
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#ifndef _bcmudp_h_
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#define _bcmudp_h_
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/* enable structure packing */
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#if defined(__GNUC__)
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#define PACKED __attribute__((packed))
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#else
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#pragma pack(1)
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#define PACKED
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#endif
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/* UDP header */
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#define UDP_DEST_PORT_OFFSET 2 /* UDP dest port offset */
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#define UDP_LEN_OFFSET 4 /* UDP length offset */
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#define UDP_CHKSUM_OFFSET 6 /* UDP body checksum offset */
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#define UDP_HDR_LEN 8 /* UDP header length */
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#define UDP_PORT_LEN 2 /* UDP port length */
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/* These fields are stored in network order */
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struct bcmudp_hdr
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{
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uint16 src_port; /* Source Port Address */
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uint16 dst_port; /* Destination Port Address */
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uint16 len; /* Number of bytes in datagram including header */
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uint16 chksum; /* entire datagram checksum with pseudoheader */
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} PACKED;
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#undef PACKED
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#if !defined(__GNUC__)
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#pragma pack()
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#endif
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#endif /* #ifndef _bcmudp_h_ */
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