svn commit: r211316 - head/sys/netinet

Andre Oppermann andre at
Sat Aug 14 21:04:27 UTC 2010

Author: andre
Date: Sat Aug 14 21:04:27 2010
New Revision: 211316

  Change the messages of the ICMP bad port bandwidth limiter from
  a kernel printf to a log output with the priority of LOG_NOTICE.
  This way the messages still show up in /var/log/messages but no
  longer spam the console every other second on busy servers that
  are port scanned:
   "Limiting open port RST response from 114 to 100 packets/sec"
  PR:		kern/147352
  Submitted by:	Eugene Grosbein <eugen-at-eg sd rdtc ru>
  MFC after:	1 week


Modified: head/sys/netinet/ip_icmp.c
--- head/sys/netinet/ip_icmp.c	Sat Aug 14 20:40:55 2010	(r211315)
+++ head/sys/netinet/ip_icmp.c	Sat Aug 14 21:04:27 2010	(r211316)
@@ -42,6 +42,7 @@ __FBSDID("$FreeBSD$");
 #include <sys/time.h>
 #include <sys/kernel.h>
 #include <sys/sysctl.h>
+#include <sys/syslog.h>
 #include <net/if.h>
 #include <net/if_types.h>
@@ -975,7 +976,7 @@ badport_bandlim(int which)
 		 * the previous behaviour at the expense of added complexity.
 		if (V_icmplim_output && opps > V_icmplim)
-			printf("Limiting %s from %d to %d packets/sec\n",
+			log(LOG_NOTICE, "Limiting %s from %d to %d packets/sec\n",
 				r->type, opps, V_icmplim);
 	return 0;			/* okay to send packet */

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