From owner-freebsd-net@freebsd.org Fri Jun 19 11:25:42 2020 Return-Path: Delivered-To: freebsd-net@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 9C3FB3482EB for ; Fri, 19 Jun 2020 11:25:42 +0000 (UTC) (envelope-from sebastian.huber@embedded-brains.de) Received: from dedi548.your-server.de (dedi548.your-server.de [85.10.215.148]) (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 49pGh566Q5z3gXj for ; Fri, 19 Jun 2020 11:25:41 +0000 (UTC) (envelope-from sebastian.huber@embedded-brains.de) Received: from sslproxy03.your-server.de ([88.198.220.132]) by dedi548.your-server.de with esmtpsa (TLSv1.2:DHE-RSA-AES256-GCM-SHA384:256) (Exim 4.89_1) (envelope-from ) id 1jmF9K-0002sN-9L for freebsd-net@freebsd.org; Fri, 19 Jun 2020 13:25:34 +0200 Received: from [82.100.198.138] (helo=mail.embedded-brains.de) by sslproxy03.your-server.de with esmtpsa (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.92) (envelope-from ) id 1jmF9K-0004cL-5O for freebsd-net@freebsd.org; Fri, 19 Jun 2020 13:25:34 +0200 Received: from localhost (localhost.localhost [127.0.0.1]) by mail.embedded-brains.de (Postfix) with ESMTP id 80E252A1610 for ; Fri, 19 Jun 2020 13:25:38 +0200 (CEST) Received: from mail.embedded-brains.de ([127.0.0.1]) by localhost (zimbra.eb.localhost [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id LkF0b9XwsMbH for ; Fri, 19 Jun 2020 13:25:38 +0200 (CEST) Received: from localhost (localhost.localhost [127.0.0.1]) by mail.embedded-brains.de (Postfix) with ESMTP id F05372A165B for ; Fri, 19 Jun 2020 13:25:37 +0200 (CEST) X-Virus-Scanned: amavisd-new at zimbra.eb.localhost Received: from mail.embedded-brains.de ([127.0.0.1]) by localhost (zimbra.eb.localhost [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id 5O0fgwTivIb7 for ; Fri, 19 Jun 2020 13:25:37 +0200 (CEST) Received: from shuber-nb-linux.eb.localhost (unknown [10.10.171.22]) by mail.embedded-brains.de (Postfix) with ESMTPSA id D05452A1610 for ; Fri, 19 Jun 2020 13:25:37 +0200 (CEST) To: FreeBSD From: Sebastian Huber Subject: TCP_NOTSENT_LOWAT on FreeBSD? Message-ID: <6170ee84-c263-fbcc-c423-6817af6f31ea@embedded-brains.de> Date: Fri, 19 Jun 2020 13:25:32 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.9.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Content-Language: en-US X-Authenticated-Sender: smtp-embedded@poldinet.de X-Virus-Scanned: Clear (ClamAV 0.102.3/25847/Thu Jun 18 14:58:52 2020) X-Rspamd-Queue-Id: 49pGh566Q5z3gXj X-Spamd-Bar: - Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=none; spf=pass (mx1.freebsd.org: domain of sebastian.huber@embedded-brains.de designates 85.10.215.148 as permitted sender) smtp.mailfrom=sebastian.huber@embedded-brains.de X-Spamd-Result: default: False [-1.33 / 15.00]; RCVD_COUNT_SEVEN(0.00)[8]; RCVD_VIA_SMTP_AUTH(0.00)[]; MID_RHS_MATCH_FROM(0.00)[]; FROM_HAS_DN(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; R_SPF_ALLOW(-0.20)[+ip4:85.10.215.148]; MIME_GOOD(-0.10)[text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-net@freebsd.org]; ARC_NA(0.00)[]; RCPT_COUNT_ONE(0.00)[1]; NEURAL_HAM_LONG(-0.97)[-0.967]; RCVD_TLS_LAST(0.00)[]; TO_DN_ALL(0.00)[]; NEURAL_HAM_SHORT(-0.15)[-0.150]; DMARC_NA(0.00)[embedded-brains.de]; NEURAL_HAM_MEDIUM(-0.92)[-0.915]; FROM_EQ_ENVFROM(0.00)[]; R_DKIM_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:24940, ipnet:85.10.192.0/18, country:DE]; SUBJECT_ENDS_QUESTION(1.00)[]; HAS_X_AS(0.00)[] X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.33 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 19 Jun 2020 11:25:42 -0000 Hello, I use the mDNSResponder from Apple in embedded devices on top of the FreeBSD network stack. I tried to update from v878.270.2 to v1096.40.7: https://opensource.apple.com/tarballs/mDNSResponder/ However, the Linux/macOS specific feature TCP_NOTSENT_LOWAT is now used in the new version: https://lwn.net/Articles/560082/ Is there something similar available on FreeBSD?