in_cksum.c revision 1.22 1 1.22 joerg /* $NetBSD: in_cksum.c,v 1.22 2008/01/25 21:12:15 joerg Exp $ */
2 1.9 cgd
3 1.1 cgd /*
4 1.8 mycroft * Copyright (c) 1988, 1992, 1993
5 1.8 mycroft * The Regents of the University of California. All rights reserved.
6 1.1 cgd *
7 1.1 cgd * Redistribution and use in source and binary forms, with or without
8 1.1 cgd * modification, are permitted provided that the following conditions
9 1.1 cgd * are met:
10 1.1 cgd * 1. Redistributions of source code must retain the above copyright
11 1.1 cgd * notice, this list of conditions and the following disclaimer.
12 1.1 cgd * 2. Redistributions in binary form must reproduce the above copyright
13 1.1 cgd * notice, this list of conditions and the following disclaimer in the
14 1.1 cgd * documentation and/or other materials provided with the distribution.
15 1.17 agc * 3. Neither the name of the University nor the names of its contributors
16 1.1 cgd * may be used to endorse or promote products derived from this software
17 1.1 cgd * without specific prior written permission.
18 1.1 cgd *
19 1.1 cgd * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 1.1 cgd * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 1.1 cgd * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 1.1 cgd * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 1.1 cgd * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 1.1 cgd * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 1.1 cgd * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 1.1 cgd * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 1.1 cgd * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 1.1 cgd * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 1.1 cgd * SUCH DAMAGE.
30 1.1 cgd *
31 1.9 cgd * @(#)in_cksum.c 8.1 (Berkeley) 6/10/93
32 1.1 cgd */
33 1.15 lukem
34 1.15 lukem #include <sys/cdefs.h>
35 1.22 joerg __KERNEL_RCSID(0, "$NetBSD: in_cksum.c,v 1.22 2008/01/25 21:12:15 joerg Exp $");
36 1.1 cgd
37 1.7 mycroft #include <sys/param.h>
38 1.11 jonathan #include <netinet/in.h>
39 1.1 cgd
40 1.6 mycroft int
41 1.18 perry in_cksum(struct mbuf *m, int len)
42 1.1 cgd {
43 1.22 joerg KASSERT(len >= 0);
44 1.1 cgd
45 1.22 joerg return cpu_in_cksum(m, len, 0, 0);
46 1.1 cgd }
47