From owner-freebsd-bugs@FreeBSD.ORG Wed Jan 23 13:20:01 2013 Return-Path: Delivered-To: freebsd-bugs@smarthost.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by hub.freebsd.org (Postfix) with ESMTP id 48E7428A for ; Wed, 23 Jan 2013 13:20:01 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:1900:2254:206c::16:87]) by mx1.freebsd.org (Postfix) with ESMTP id 17C28107 for ; Wed, 23 Jan 2013 13:20:01 +0000 (UTC) Received: from freefall.freebsd.org (localhost [127.0.0.1]) by freefall.freebsd.org (8.14.6/8.14.6) with ESMTP id r0NDK0dL038304 for ; Wed, 23 Jan 2013 13:20:00 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.6/8.14.6/Submit) id r0NDK0rR038298; Wed, 23 Jan 2013 13:20:00 GMT (envelope-from gnats) Resent-Date: Wed, 23 Jan 2013 13:20:00 GMT Resent-Message-Id: <201301231320.r0NDK0rR038298@freefall.freebsd.org> Resent-From: FreeBSD-gnats-submit@FreeBSD.org (GNATS Filer) Resent-To: freebsd-bugs@FreeBSD.org Resent-Reply-To: FreeBSD-gnats-submit@FreeBSD.org, Vladimir Spiridenkov Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by hub.freebsd.org (Postfix) with ESMTP id 5DA78EA7 for ; Wed, 23 Jan 2013 13:10:34 +0000 (UTC) (envelope-from nobody@FreeBSD.org) Received: from red.freebsd.org (red.freebsd.org [IPv6:2001:4f8:fff6::22]) by mx1.freebsd.org (Postfix) with ESMTP id 4A45882 for ; Wed, 23 Jan 2013 13:10:34 +0000 (UTC) Received: from red.freebsd.org (localhost [127.0.0.1]) by red.freebsd.org (8.14.5/8.14.5) with ESMTP id r0NDAXbi062130 for ; Wed, 23 Jan 2013 13:10:33 GMT (envelope-from nobody@red.freebsd.org) Received: (from nobody@localhost) by red.freebsd.org (8.14.5/8.14.5/Submit) id r0NDAXFb062129; Wed, 23 Jan 2013 13:10:33 GMT (envelope-from nobody) Message-Id: <201301231310.r0NDAXFb062129@red.freebsd.org> Date: Wed, 23 Jan 2013 13:10:33 GMT From: Vladimir Spiridenkov To: freebsd-gnats-submit@FreeBSD.org X-Send-Pr-Version: www-3.1 Subject: kern/175530: lost dynamic IPFW rule for TCP session after 5 min inactivity X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 23 Jan 2013 13:20:01 -0000 >Number: 175530 >Category: kern >Synopsis: lost dynamic IPFW rule for TCP session after 5 min inactivity >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Wed Jan 23 13:20:00 UTC 2013 >Closed-Date: >Last-Modified: >Originator: Vladimir Spiridenkov >Release: 9.1-STABLE >Organization: ITR >Environment: FreeBSD vswork.itreg.ru 9.1-STABLE FreeBSD 9.1-STABLE #0 r245462M: Wed Jan 23 15:39:15 MSK 2013 vs@vswork.itreg.ru:/usr/obj/usr/src/sys/GENERIC amd64 >Description: there is no keepalive packets for TCP session during live time of dynamic IPFW rule >How-To-Repeat: root@vs# ssh 10.255.255.60 root@vs# ipfw -d show|grep -e 10.255.255.60 10200 32 7002 (299s) STATE tcp 10.10.10.44 46787 <-> 10.255.255.60 22 root@vs# sleep 275 root@vs# ipfw -d show|grep -e 10.255.255.60 10200 32 7002 (24s) STATE tcp 10.10.10.44 46787 <-> 10.255.255.60 22 root@vs# sleep 30 root@vs# ipfw -d show|grep -e 10.255.255.60 root@vs# >Fix: --- /usr/src/sys/netpfil/ipfw/ip_fw_dynamic.c-PREV 2013-01-15 21:03:16.000000000 +0400 +++ /usr/src/sys/netpfil/ipfw/ip_fw_dynamic.c 2013-01-23 15:27:23.356498876 +0400 @@ -1322,7 +1322,7 @@ V_dyn_keepalive_interval = 20; V_dyn_keepalive_period = 5; V_dyn_keepalive = 1; /* do send keepalives */ - V_dyn_keepalive = time_uptime; + V_dyn_keepalive_last = time_uptime; V_dyn_max = 4096; /* max # of dynamic rules */ >Release-Note: >Audit-Trail: >Unformatted: