From owner-freebsd-stable@freebsd.org Sun Nov 22 13:37:51 2020 Return-Path: Delivered-To: freebsd-stable@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id D6EBE468B32; Sun, 22 Nov 2020 13:37:51 +0000 (UTC) (envelope-from trashcan@ellael.org) Received: from mx1.enfer-du-nord.net (mx1.enfer-du-nord.net [91.121.41.56]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4CfBDb0f8bz3Fr8; Sun, 22 Nov 2020 13:37:50 +0000 (UTC) (envelope-from trashcan@ellael.org) Received: from [IPv6:2003:fb:4f0f:4a01:384c:e785:7e69:e5ee] (p200300Fb4f0F4A01384ce7857e69E5EE.dip0.t-ipconnect.de [IPv6:2003:fb:4f0f:4a01:384c:e785:7e69:e5ee]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.enfer-du-nord.net (Postfix) with ESMTPSA id 4CfBDN3cGJzFdH; Sun, 22 Nov 2020 14:37:40 +0100 (CET) From: Michael Grimm Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Mime-Version: 1.0 (Mac OS X Mail 13.4 \(3608.120.23.2.4\)) Subject: 12.2-STABLE: Commit 367740 breaks IMAP/SMTP server authentication Message-Id: Date: Sun, 22 Nov 2020 14:37:33 +0100 Cc: gnn@freebsd.org To: freebsd-net@freebsd.org, FreeBSD-STABLE Mailing List X-Mailer: Apple Mail (2.3608.120.23.2.4) X-Rspamd-Queue-Id: 4CfBDb0f8bz3Fr8 X-Spamd-Bar: - Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=none; spf=none (mx1.freebsd.org: domain of trashcan@ellael.org has no SPF policy when checking 91.121.41.56) smtp.mailfrom=trashcan@ellael.org X-Spamd-Result: default: False [-1.41 / 15.00]; RCVD_TLS_ALL(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; MID_RHS_MATCH_FROM(0.00)[]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_THREE(0.00)[3]; MV_CASE(0.50)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; MIME_GOOD(-0.10)[text/plain]; DMARC_NA(0.00)[ellael.org]; ARC_NA(0.00)[]; TO_DN_SOME(0.00)[]; SPAMHAUS_ZRD(0.00)[91.121.41.56:from:127.0.2.255]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; RBL_DBL_DONT_QUERY_IPS(0.00)[91.121.41.56:from]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_SHORT(-0.81)[-0.813]; AUTH_NA(1.00)[]; R_SPF_NA(0.00)[no SPF record]; FROM_EQ_ENVFROM(0.00)[]; R_DKIM_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:16276, ipnet:91.121.0.0/16, country:FR]; RCVD_COUNT_TWO(0.00)[2]; MAILMAN_DEST(0.00)[freebsd-net,freebsd-stable] X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 22 Nov 2020 13:37:51 -0000 Hi, I am running 12.2-STABLE and VNET jails, one of which host a recent = Dovecot IMAP and a recent postfix SMTP server. Authentication is forced = via TLS/SSL for both services (ports 587 and 993). Setup is as follows: extIF0/pf/NAT <=E2=80=94> epairXa (bridge0) epairXb <-> jail A recent upgrade broke mailing of IMAP clients running at macOS 10.14.6 = (Mojave) und AVM's push service (Fritzbox), but *not* for IMAP clients = running at macOS 10.15.7 (Catalina). Strange. Findings at macOS 10.14.6 (examplified for IMAP): 1) mac$ nc -4vw 1 mail.xyz.zzz 993 found 0 associations found 1 connections: 1: flags=3D82 outif en0 src 1.2.3.4 port 49583 dst 11.22.33.44 port 993 rank info not available TCP aux info available Connection to mail.xyz.zzz port 993 [tcp/imaps] succeeded! 2) mac$ openssl s_client -crlf -connect mail.xyz.zzz:993 -debug CONNECTED(00000005) write to 0x7fa32ef01ae0 [0x7fa33080a803] (200 bytes =3D> 200 = (0xC8)) 0000 - 16 03 01 00 c3 01 00 00-bf 03 03 32 f7 fe fa b4 = ...........2....=20 0010 - e8 9a 60 38 ef 34 99 70-84 ce dc 1a 08 b8 76 90 = ..`8.4.p=E2=80=A6=E2=80=A6v. 0020 - 19 8c 81 f4 a6 37 19 37-09 70 6f 00 00 60 c0 30 = .....7.7.po..`.0 0030 - c0 2c c0 28 c0 24 c0 14-c0 0a 00 9f 00 6b 00 39 = .,.(.$.......k.9 0040 - cc a9 cc a8 cc aa ff 85-00 c4 00 88 00 81 00 9d = =E2=80=A6=E2=80=A6=E2=80=A6=E2=80=A6=E2=80=A6. 0050 - 00 3d 00 35 00 c0 00 84-c0 2f c0 2b c0 27 c0 23 = .=3D.5...../.+.'.# 0060 - c0 13 c0 09 00 9e 00 67-00 33 00 be 00 45 00 9c = .......g.3...E.. 0070 - 00 3c 00 2f 00 ba 00 41-c0 11 c0 07 00 05 00 04 = .<./...A=E2=80=A6=E2=80=A6.. 0080 - c0 12 c0 08 00 16 00 0a-00 15 00 09 00 ff 01 00 = =E2=80=A6=E2=80=A6=E2=80=A6=E2=80=A6=E2=80=A6. 0090 - 00 36 00 0b 00 02 01 00-00 0a 00 08 00 06 00 1d = .6=E2=80=A6=E2=80=A6=E2=80=A6=E2=80=A6.. 00a0 - 00 17 00 18 00 23 00 00-00 0d 00 1c 00 1a 06 01 = .....#=E2=80=A6=E2=80=A6=E2=80=A6. 00b0 - 06 03 ef ef 05 01 05 03-04 01 04 03 ee ee ed ed = =E2=80=A6=E2=80=A6=E2=80=A6=E2=80=A6=E2=80=A6. 00c0 - 03 01 03 03 02 01 02 03- = ........ hanging at that stage forever=20 (and client complaining of its inability to authenticate and = reports timeout after 60 seconds) I did identify commit 367740 being responsible for that: mike> svn up -r 367740 Updating '.': U sys/netinet/ip_fastfwd.c U sys/netinet/ip_input.c U sys/netinet/ip_var.h U . Updated to revision 367740. Any Ideas, especially why clients at different OS behave different? FYI: I do have no access to AVM's push service, and very limited access = to the macOS 10.14.6 computer. Thanks in advance and with kind regards, Michael P.S. How may I update a local svn copy and simultaneously omit commit = 367740 from being applied, or how may I revert commit 367740, only?