Author: cy
Date: Tue Sep 3 19:14:00 2019
New Revision: 351775
URL: https://svnweb.freebsd.org/changeset/base/351775
Log:
MFC r350882:
Initialize the frentry (the control block that defines a rule) checksum
to zero. Matching checksums save time and effort by mitigating the need
for full rule compare.
Modified:
stable/11/sys/contrib/ipfilter/netinet/fil.c
Directory Properties:
stable/11/ (props changed)
Changes in other areas also in this revision:
Modified:
stable/12/sys/contrib/ipfilter/netinet/fil.c
Directory Properties:
stable/12/ (props changed)
Modified: stable/11/sys/contrib/ipfilter/netinet/fil.c
==============================================================================
--- stable/11/sys/contrib/ipfilter/netinet/fil.c Tue Sep 3 18:58:48
2019 (r351774)
+++ stable/11/sys/contrib/ipfilter/netinet/fil.c Tue Sep 3 19:14:00
2019 (r351775)
@@ -4973,7 +4973,7 @@ frrequest(softc, unit, req, data, set, makecopy)
* (this meaning no pointers are included).
*/
pp = (u_int *)(fp->fr_caddr + fp->fr_dsize);
- for (p = (u_int *)fp->fr_data; p < pp; p++)
+ for (fp->fr_cksum = 0, p = (u_int *)fp->fr_data; p < pp; p++)
fp->fr_cksum += *p;
WRITE_ENTER(&softc->ipf_mutex);
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