From owner-freebsd-pf@freebsd.org  Wed Dec 13 21:16:07 2017
Return-Path: <owner-freebsd-pf@freebsd.org>
Delivered-To: freebsd-pf@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 563DBE8763B
 for <freebsd-pf@mailman.ysv.freebsd.org>; Wed, 13 Dec 2017 21:16:07 +0000 (UTC)
 (envelope-from srs0=w26f=dj=sigsegv.be=kristof@codepro.be)
Received: from venus.codepro.be (venus.codepro.be [IPv6:2a01:4f8:162:1127::2])
 (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256
 bits))
 (Client CN "*.codepro.be", Issuer "Gandi Standard SSL CA 2" (verified OK))
 by mx1.freebsd.org (Postfix) with ESMTPS id E451F644A4
 for <freebsd-pf@freebsd.org>; Wed, 13 Dec 2017 21:16:06 +0000 (UTC)
 (envelope-from srs0=w26f=dj=sigsegv.be=kristof@codepro.be)
Received: from [192.168.228.1]
 (ptr-8ripyygeurmxuwzhmk2.18120a2.ip6.access.telenet.be
 [IPv6:2a02:1811:2419:4e02:8477:bf91:cfae:2f72])
 (Authenticated sender: kp)
 by venus.codepro.be (Postfix) with ESMTPSA id C2FCC28DA8;
 Wed, 13 Dec 2017 22:16:04 +0100 (CET)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sigsegv.be; s=mail;
 t=1513199764; bh=Wn3nYLhs+nlnDxTPWpxmZ2IhOzzdDMEot9JrgBFWolQ=;
 h=From:To:Cc:Subject:Date:In-Reply-To:References;
 b=n8Gbm8VOjUDmIcGxLt4lOz8YaTQ/DRHI+O4IKttVD++tqtkoS1kcjRekdahnArx5n
 db0GiSma9xakEZ3De1kz2K2+tgwDIwemSQUpJNw8N45MOKC7BaFKazxHUZ+r9uHOKK
 1/nbkk995sytDCvPb5iS6gA3PAHFbdmrohkIwenM=
From: "Kristof Provost" <kristof@sigsegv.be>
To: "John Jasen" <jjasen@gmail.com>
Cc: "FreeBSD PF" <freebsd-pf@freebsd.org>
Subject: Re: problems with tftp-proxy in 11.1?
Date: Wed, 13 Dec 2017 22:16:02 +0100
X-Mailer: MailMate (2.0BETAr6102)
Message-ID: <25C215BD-3869-4D74-88D6-50298287FBE0@sigsegv.be>
In-Reply-To: <CAACLuR1r8Cm2gQeBwOq3DfCO=eXexeJhOYb-wJqb_sS2WhLQ1Q@mail.gmail.com>
References: <e254d9bc-2246-648e-24b4-c5cd383b6f37@gmail.com>
 <F42958A5-F0F6-44CE-A290-E21A1BFD517B@sigsegv.be>
 <9f0fc087-2aed-535e-c779-be0cc49cde26@gmail.com>
 <03C8B641-5A71-4FA5-92AD-178597EC5421@sigsegv.be>
 <b7b360bd-7a56-7d85-14d4-62ec1c77546c@gmail.com>
 <A0D0E79F-41BD-4537-B840-16535BDA83F1@sigsegv.be>
 <CAACLuR1r8Cm2gQeBwOq3DfCO=eXexeJhOYb-wJqb_sS2WhLQ1Q@mail.gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Transfer-Encoding: 8bit
X-Content-Filtered-By: Mailman/MimeDel 2.1.25
X-BeenThere: freebsd-pf@freebsd.org
X-Mailman-Version: 2.1.25
Precedence: list
List-Id: "Technical discussion and general questions about packet filter
 \(pf\)" <freebsd-pf.freebsd.org>
List-Unsubscribe: <https://lists.freebsd.org/mailman/options/freebsd-pf>,
 <mailto:freebsd-pf-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-pf/>
List-Post: <mailto:freebsd-pf@freebsd.org>
List-Help: <mailto:freebsd-pf-request@freebsd.org?subject=help>
List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/freebsd-pf>,
 <mailto:freebsd-pf-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 13 Dec 2017 21:16:07 -0000

On 7 Dec 2017, at 18:02, John Jasen wrote:
> On Wed, Dec 6, 2017 at 5:01 PM, Kristof Provost <kristof@sigsegv.be> 
> wrote:
>
>> On 6 Dec 2017, at 21:25, John Jasen wrote:
>>
>> On 12/04/2017 02:47 PM, Kristof Provost wrote:
>>
>> Okay, so this is interesting:
>>
>> 25013: ioctl(4,0xc04c4417 { IORW 0x44('D'), 23, 76 },0x7fffffffe5b0) 
>> ERR#2
>> 'No such file or directory'
>>
>> The DIOCNATLOOK ioctl() fails with ENOENT, which happens if the state
>> can’t be found.
>> Of course, I have no idea why that would happen. Does this affect 
>> some
>> tftp connections or all of them?
>>
>
> Some, where the amount seems somewhat random.
>
I *think* I’ve reproduced this. It seems to happen only to the first 
tftp packet, but at least that’s something to go on. I’ll try to 
investigate further soon.

Regards,
Kristof