1292407Sbr/*-
2292407Sbr * Copyright (c) 1990 The Regents of the University of California.
3292407Sbr * All rights reserved.
4292407Sbr *
5292407Sbr * Redistribution and use in source and binary forms, with or without
6292407Sbr * modification, are permitted provided that the following conditions
7292407Sbr * are met:
8292407Sbr * 1. Redistributions of source code must retain the above copyright
9292407Sbr *    notice, this list of conditions and the following disclaimer.
10292407Sbr * 2. Redistributions in binary form must reproduce the above copyright
11292407Sbr *    notice, this list of conditions and the following disclaimer in the
12292407Sbr *    documentation and/or other materials provided with the distribution.
13292407Sbr * 3. Neither the name of the University nor the names of its contributors
14292407Sbr *    may be used to endorse or promote products derived from this software
15292407Sbr *    without specific prior written permission.
16292407Sbr *
17292407Sbr * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18292407Sbr * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19292407Sbr * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20292407Sbr * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21292407Sbr * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22292407Sbr * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23292407Sbr * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24292407Sbr * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25292407Sbr * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26292407Sbr * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27292407Sbr * SUCH DAMAGE.
28292407Sbr *
29292407Sbr *	from tahoe:	in_cksum.c	1.2	86/01/05
30292407Sbr *	from:		@(#)in_cksum.c	1.3 (Berkeley) 1/19/91
31292407Sbr *	from: Id: in_cksum.c,v 1.8 1995/12/03 18:35:19 bde Exp
32292407Sbr * $FreeBSD$
33292407Sbr */
34292407Sbr
35292407Sbr#ifndef _MACHINE_IN_CKSUM_H_
36292407Sbr#define	_MACHINE_IN_CKSUM_H_	1
37292407Sbr
38292407Sbr#include <sys/cdefs.h>
39292407Sbr
40292407Sbr#ifdef _KERNEL
41292407Sbr#define	in_cksum(m, len)	in_cksum_skip(m, len, 0)
42292407Sbru_short in_addword(u_short sum, u_short b);
43292407Sbru_short in_cksum_skip(struct mbuf *m, int len, int skip);
44292407Sbru_int do_cksum(const void *, int);
45292407Sbr#if defined(IPVERSION) && (IPVERSION == 4)
46292407Sbru_int in_cksum_hdr(const struct ip *);
47292407Sbr#endif
48292407Sbr
49292407Sbru_short in_pseudo(u_int sum, u_int b, u_int c);
50292407Sbr
51292407Sbr#endif /* _KERNEL */
52292407Sbr#endif /* _MACHINE_IN_CKSUM_H_ */
53