From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DBF05C43603 for ; Tue, 10 Dec 2019 07:00:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A5384206D3 for ; Tue, 10 Dec 2019 07:00:31 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="key not found in DNS" (0-bit key) header.d=codeaurora.org header.i=@codeaurora.org header.b="oZL3cles"; dkim=pass (1024-bit key) header.d=amazonses.com header.i=@amazonses.com header.b="O29rRmA4" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727208AbfLJHAb (ORCPT ); Tue, 10 Dec 2019 02:00:31 -0500 Received: from a27-187.smtp-out.us-west-2.amazonses.com ([54.240.27.187]:55982 "EHLO a27-187.smtp-out.us-west-2.amazonses.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727004AbfLJHAb (ORCPT ); Tue, 10 Dec 2019 02:00:31 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/simple; s=zsmsymrwgfyinv5wlfyidntwsjeeldzt; d=codeaurora.org; t=1575961230; h=MIME-Version:Content-Type:Content-Transfer-Encoding:Date:From:To:Cc:Subject:In-Reply-To:References:Message-ID; bh=kt/xi0W+smcW+NKMl/uIfEDHjQ5qJ7tc0aSAoL05k/c=; b=oZL3clesDOKK62PVPXdxMoYBH2U9aYiYvBxbnC6/6tiAbc0z5YF1eY51Vodhs8XN 1KVoxniZGfTM4KuYj5a9gtUPaoaRp/KLnyoc0CNQdXEGDYTRxuDkw+B6ezXo19Dggj5 gv04MaepukYGGFB4fWFioZKR8kSeoYzdPZa/HN9A= DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/simple; s=gdwg2y3kokkkj5a55z2ilkup5wp5hhxx; d=amazonses.com; t=1575961230; h=MIME-Version:Content-Type:Content-Transfer-Encoding:Date:From:To:Cc:Subject:In-Reply-To:References:Message-ID:Feedback-ID; bh=kt/xi0W+smcW+NKMl/uIfEDHjQ5qJ7tc0aSAoL05k/c=; b=O29rRmA4vGIlYB0tGFIYFypIkVNoaM7lkjfF+60HleBp79dmMNdy0TN4vMPmWQgz B1vWbii76i1LVMkHLk+N6U4XASViDCpS3n1nsOg/uEYIGLziNH6xuqobjVcygWozNvP Jnev9O433T9T5T5bm7NBVhKBzu+w1CwyzJBDmrd4= MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit Date: Tue, 10 Dec 2019 07:00:30 +0000 From: subashab@codeaurora.org To: Jakub Kicinski Cc: =?UTF-8?Q?Maciej_=C5=BBenczykowski?= , "David S . Miller" , Linux Network Development Mailing List , Marcelo Ricardo Leitner , Sean Tranchetti , Eric Dumazet , Linux SCTP Subject: Re: [PATCH v2] net: introduce ip_local_unbindable_ports sysctl In-Reply-To: <20191209161835.7c455fc0@cakuba.netronome.com> References: <20191209224530.156283-1-zenczykowski@gmail.com> <20191209154216.7e19e0c0@cakuba.netronome.com> <20191209161835.7c455fc0@cakuba.netronome.com> Message-ID: <0101016eee9bfacd-d60e502b-06b1-4870-87e6-c8402b096006-000000@us-west-2.amazonses.com> X-Sender: subashab@codeaurora.org User-Agent: Roundcube Webmail/1.3.9 X-SES-Outgoing: 2019.12.10-54.240.27.187 Feedback-ID: 1.us-west-2.CZuq2qbDmUIuT3qdvXlRHZZCpfZqZ4GtG9v3VKgRyF0=:AmazonSES Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org > Okay, that's what I was suspecting. It'd be great if the real > motivation for a patch was spelled out in the commit message :/ > > So some SoCs which run non-vanilla kernels require hacks to steal > ports from the networking stack for use by proprietary firmware. > > I don't see how merging this patch benefits the community. > This is just a transparent proxy scenario though. We block the specific ports so that there is no unrelated traffic belonging to host proxied here incorrectly.