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drop packet if IPv6 udp packet does not have checksum (checksum is mandatory

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in IPv6).
This commit is contained in:
itojun 2004-03-31 07:54:00 +00:00
parent 853765335a
commit 8d81738de0
1 changed files with 5 additions and 4 deletions
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9
sys/netinet/udp_usrreq.c
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@ -1,4 +1,4 @@
/* $NetBSD: udp_usrreq.c,v 1.116 2004/03/24 15:34:54 atatat Exp $ */
/* $NetBSD: udp_usrreq.c,v 1.117 2004/03/31 07:54:00 itojun Exp $ */
/*
* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
@ -61,7 +61,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: udp_usrreq.c,v 1.116 2004/03/24 15:34:54 atatat Exp $");
__KERNEL_RCSID(0, "$NetBSD: udp_usrreq.c,v 1.117 2004/03/31 07:54:00 itojun Exp $");
#include "opt_inet.h"
#include "opt_ipsec.h"
@ -430,9 +430,10 @@ udp6_input(mp, offp, proto)
/*
* Checksum extended UDP header and data.
*/
if (uh->uh_sum == 0)
if (uh->uh_sum == 0) {
udp6stat.udp6s_nosum++;
else if (in6_cksum(m, IPPROTO_UDP, off, ulen) != 0) {
goto bad;
} else if (in6_cksum(m, IPPROTO_UDP, off, ulen) != 0) {
udp6stat.udp6s_badsum++;
goto bad;
}