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=-2.9 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_NEOMUTT 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 55DE9C43381 for ; Thu, 7 Mar 2019 16:52:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1FEDE20840 for ; Thu, 7 Mar 2019 16:52:05 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="uCGEWTlM" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726250AbfCGQwD (ORCPT ); Thu, 7 Mar 2019 11:52:03 -0500 Received: from mail-pg1-f180.google.com ([209.85.215.180]:40943 "EHLO mail-pg1-f180.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726161AbfCGQwD (ORCPT ); Thu, 7 Mar 2019 11:52:03 -0500 Received: by mail-pg1-f180.google.com with SMTP id u9so11705322pgo.7 for ; Thu, 07 Mar 2019 08:52:03 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=OOxJe6sHkLXA0zX8bpvxjgJfBk+VJUkSKPIbi/sCxD8=; b=uCGEWTlMRbWe8mBdl4SJ0XrhHJlCkvFJvYxZgtMxUq8zdgscpH0LfHUqe+f/WY+OqC 4louP/17JfIjMslXVo5pE7KKS4Q0FazeAAPn8eCJExOhA2k6y/K7oRIV0+c3fJWMZRLJ ModAPmRVhnJwFbPXLAw7RcOqzYnKfWZ9SYw07DBTFC7c7WKCK+4f0HAWwI9ICq53JSUQ 665p/MK70xRJjLMg1mLaEumrSOQjAXv7VDSBS+JJl8X7r9DXkMcgpy7rXsOBSA5WfQqM mPoGBQgXYxsYUWdX53+PkuPL4VuxGvB9U2rBEIJag32VUG58OLc8p8gYAGk/8TAt+I5+ Ujag== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=OOxJe6sHkLXA0zX8bpvxjgJfBk+VJUkSKPIbi/sCxD8=; b=JLO8tuPn6Y3osEzJY5/8xcBgqgmP1CZGjO3JqD+l/NVQ7mWbWAUIUoHaY0xddcoLR/ H3V98FdxQWnKjmIRebNSyJixoEsZYipMPPAyX0JjTpAyHmEtXutNkzxw7moA4XruJu82 n87Sak6z73OX5TCKvahto1LZp0XeFgXSYUGgF3Es30rNPD5IJG3dEOrC2CdzCL4Vo1RQ mz6BvpX7qUdqcqpF2xyUJeHSMv9kUfHa49NjB3fnidQt8mO+bnEsrho855YK4+Qwdk4f fu9l+JSAkzDOeUYUHP5QkOyQ7HywFr9d3yTfRJ5H3+ijAxjpN5uUwRiiBc97XQaW731E kCag== X-Gm-Message-State: APjAAAVc6NUXtzKq2Wt90c4bl24m1S0LCL20h50jilGVuTDYRCkHNWJD VUt9NjZnEHVmDaVNAZNsRaE= X-Google-Smtp-Source: APXvYqydGeMZxtmEbr33wUCZerNTEx38hQe2ga3D3Wol32jY72mwbh7QTp7zBhzqx/h8A45xRiZNlQ== X-Received: by 2002:a62:cf81:: with SMTP id b123mr14002915pfg.29.1551977522388; Thu, 07 Mar 2019 08:52:02 -0800 (PST) Received: from ast-mbp.dhcp.thefacebook.com ([2620:10d:c090:180::db0e]) by smtp.gmail.com with ESMTPSA id c13sm21045063pfm.34.2019.03.07.08.52.00 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 07 Mar 2019 08:52:01 -0800 (PST) Date: Thu, 7 Mar 2019 08:51:59 -0800 From: Alexei Starovoitov To: Maxim Mikityanskiy Cc: =?utf-8?B?QmrDtnJuIFTDtnBlbA==?= , Jonathan Lemon , John Fastabend , "netdev@vger.kernel.org" , =?utf-8?B?QmrDtnJuIFTDtnBlbA==?= , Magnus Karlsson , "David S. Miller" , Tariq Toukan , Saeed Mahameed , Eran Ben Elisha Subject: Re: AF_XDP design flaws Message-ID: <20190307165157.ima2ap6ywygq2itr@ast-mbp.dhcp.thefacebook.com> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: NeoMutt/20180223 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On Thu, Mar 07, 2019 at 03:09:33PM +0000, Maxim Mikityanskiy wrote: > > What I'm concerned of is a security hole this feature opens to the systems not using AF_XDP. could you please explain the 'security hole' again because I still don't see one.