From owner-freebsd-bugs@freebsd.org Wed Mar 22 10:12:58 2017 Return-Path: Delivered-To: freebsd-bugs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 44CB5D17AE5 for ; Wed, 22 Mar 2017 10:12:58 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 1B5331FD3 for ; Wed, 22 Mar 2017 10:12:58 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from bugs.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id v2MACvpx080616 for ; Wed, 22 Mar 2017 10:12:57 GMT (envelope-from bugzilla-noreply@freebsd.org) From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 217997] [pf] orphaned entries in src-track Date: Wed, 22 Mar 2017 10:12:58 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 10.3-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: rs@bytecamp.net X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: freebsd-bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 22 Mar 2017 10:12:58 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D217997 Bug ID: 217997 Summary: [pf] orphaned entries in src-track Product: Base System Version: 10.3-RELEASE Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: freebsd-bugs@FreeBSD.org Reporter: rs@bytecamp.net There seems to be a flaw in the src-track cleanup code. This has been discovered since 10.3. pf.conf is (stripped down to the relevant parts): -- 8< ------------------------ rdr proto tcp from any to $public-ip port http -> port http \ round-robin sticky-address table persist { $www-addr, $www-addr2, $www-addr3 } block in all block out all pass quick proto tcp from any to port 80 \ keep state \ ( source-track rule, max 8192, max-src-states 96, \ tcp.closing 20, tcp.finwait 15 ) -- 8< ------------------------ The problem is, that src-track table grows until no more entries can be inserted. Although there are no states from a sample ip-address in the state table, there are still references in the src-track table: # pfctl -vsS | grep -A1 $example-address $example-address -> $www-addr ( states 4, connections 0, rate 0.0/0s ) age 01:47:25, 4808 pkts, 1713437 bytes, rdr rule 0 # pfctl -sS | grep $example-address (nothing shown) To circumvent this problem, we have to parse pfctl output and kill over-aged source tracking entries manually. Maybe someone can track this down. Regards, Robert Schulze --=20 You are receiving this mail because: You are the assignee for the bug.=