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/*
* Copyright 2005, Broadcom Corporation
* All Rights Reserved.
*
* This is UNPUBLISHED PROPRIETARY SOURCE CODE of Broadcom Corporation;
* the contents of this file may not be disclosed to third parties, copied
* or duplicated in any form, in whole or in part, without the prior
* written permission of Broadcom Corporation.
*
* Fundamental constants relating to IP Protocol
*
* $Id$
*/
#ifndef _bcmip_h_
#define _bcmip_h_
/* IP header */
#define IPV4_VERIHL_OFFSET 0 /* version and ihl byte offset */
#define IPV4_TOS_OFFSET 1 /* TOS offset */
#define IPV4_PROT_OFFSET 9 /* protocol type offset */
#define IPV4_CHKSUM_OFFSET 10 /* IP header checksum offset */
#define IPV4_SRC_IP_OFFSET 12 /* src IP addr offset */
#define IPV4_DEST_IP_OFFSET 16 /* dest IP addr offset */
#define IPV4_VER_MASK 0xf0
#define IPV4_IHL_MASK 0x0f
#define IPV4_PROT_UDP 17 /* UDP protocol type */
#define IPV4_ADDR_LEN 4 /* IP v4 address length */
#define IPV4_VER_NUM 0x40 /* IP v4 version number */
/* NULL IP address check */
#define IPV4_ISNULLADDR(a) ((((uint8 *)(a))[0] + ((uint8 *)(a))[1] + \
((uint8 *)(a))[2] + ((uint8 *)(a))[3]) == 0)
#define IPV4_ADDR_STR_LEN 16
#endif /* #ifndef _bcmip_h_ */
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