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Pull up following revision(s) (requested by christos in ticket #1331): 

sys/external/bsd/ipf/netinet/fil.c: revision 1.30

PR/54443: Edgar Fu�: ipf mistakenly regards UDP packet with checksum field
0xffff as bad
This commit is contained in:
martin 2019-08-09 19:21:04 +00:00
parent 5360a235d9
commit 96fc676343
1 changed files with 6 additions and 3 deletions
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9
sys/external/bsd/ipf/netinet/fil.c vendored
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@ -1,4 +1,4 @@
/* $NetBSD: fil.c,v 1.20.4.2 2018/12/26 13:18:53 martin Exp $ */
/* $NetBSD: fil.c,v 1.20.4.3 2019/08/09 19:21:04 martin Exp $ */
/*
* Copyright (C) 2012 by Darren Reed.
@ -138,7 +138,7 @@ extern struct timeout ipf_slowtimer_ch;
#if !defined(lint)
#if defined(__NetBSD__)
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: fil.c,v 1.20.4.2 2018/12/26 13:18:53 martin Exp $");
__KERNEL_RCSID(0, "$NetBSD: fil.c,v 1.20.4.3 2019/08/09 19:21:04 martin Exp $");
#else
static const char sccsid[] = "@(#)fil.c 1.36 6/5/96 (C) 1993-2000 Darren Reed";
static const char rcsid[] = "@(#)Id: fil.c,v 1.1.1.2 2012/07/22 13:45:07 darrenr Exp $";
@ -6527,8 +6527,11 @@ ipf_checkl4sum(fr_info_t *fin)
/*NOTREACHED*/
}
if (csump != NULL)
if (csump != NULL) {
hdrsum = *csump;
if (fin->fin_p == IPPROTO_UDP && hdrsum == 0xffff)
hdrsum = 0x0000;
}
if (dosum) {
sum = fr_cksum(fin, fin->fin_ip, fin->fin_p, fin->fin_dp);