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=-8.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=ham 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 A9A3BC4321A for ; Fri, 28 Jun 2019 21:34:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7DCDE2086D for ; Fri, 28 Jun 2019 21:34:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726789AbfF1Vex (ORCPT ); Fri, 28 Jun 2019 17:34:53 -0400 Received: from shards.monkeyblade.net ([23.128.96.9]:52182 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725783AbfF1Vew (ORCPT ); Fri, 28 Jun 2019 17:34:52 -0400 Received: from localhost (unknown [IPv6:2601:601:9f80:35cd::d71]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) (Authenticated sender: davem-davemloft) by shards.monkeyblade.net (Postfix) with ESMTPSA id 1FE9613AECA1E; Fri, 28 Jun 2019 14:34:52 -0700 (PDT) Date: Fri, 28 Jun 2019 14:34:51 -0700 (PDT) Message-Id: <20190628.143451.2154118272310072917.davem@davemloft.net> To: christian@brauner.io Cc: kuznet@ms2.inr.ac.ru, yoshfuji@linux-ipv6.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH net-next] ipv4: enable route flushing in network namespaces From: David Miller In-Reply-To: <20190624132923.16792-1-christian@brauner.io> References: <20190624132923.16792-1-christian@brauner.io> X-Mailer: Mew version 6.8 on Emacs 26.1 Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.5.12 (shards.monkeyblade.net [149.20.54.216]); Fri, 28 Jun 2019 14:34:52 -0700 (PDT) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Christian Brauner Date: Mon, 24 Jun 2019 15:29:23 +0200 > Tools such as vpnc try to flush routes when run inside network > namespaces by writing 1 into /proc/sys/net/ipv4/route/flush. This > currently does not work because flush is not enabled in non-initial > network namespaces. > Since routes are per network namespace it is safe to enable > /proc/sys/net/ipv4/route/flush in there. > > Link: https://github.com/lxc/lxd/issues/4257 > Signed-off-by: Christian Brauner Applied.