v4_sum_impl.h revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 1999-2001 by Sun Microsystems, Inc.
* All rights reserved.
*/
#ifndef _V4_SUM_IMPL_H
#define _V4_SUM_IMPL_H
#pragma ident "%Z%%M% %I% %E% SMI"
#include <sys/types.h>
#include <netinet/in.h>
#include <netinet/udp.h>
/*
* Common functions for various IP/UDP module checksum implementations.
*/
#ifdef __cplusplus
extern "C" {
#endif
#define BIT_WRAP (uint_t)0x10000 /* checksum wrap */
extern uint16_t ipv4cksum(uint16_t *, uint16_t);
extern uint16_t udp_chksum(struct udphdr *, const struct in_addr *,
const struct in_addr *, uint8_t);
#ifdef __cplusplus
}
#endif
#endif /* _V4_SUM_IMPL_H */