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=-3.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 C0578C3F2CD for ; Thu, 5 Mar 2020 12:00:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8D20A20848 for ; Thu, 5 Mar 2020 12:00:51 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=cloudflare.com header.i=@cloudflare.com header.b="IaN3n+vc" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727389AbgCEMAu (ORCPT ); Thu, 5 Mar 2020 07:00:50 -0500 Received: from mail-wm1-f65.google.com ([209.85.128.65]:51057 "EHLO mail-wm1-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726894AbgCEMAt (ORCPT ); Thu, 5 Mar 2020 07:00:49 -0500 Received: by mail-wm1-f65.google.com with SMTP id a5so5985845wmb.0 for ; Thu, 05 Mar 2020 04:00:46 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cloudflare.com; s=google; h=references:user-agent:from:to:cc:subject:in-reply-to:date :message-id:mime-version; bh=uObr8HTRJvvkPtZFYtcKx4WzpLxPFBuwzYX1IrBj3yc=; b=IaN3n+vcHlCFmj2FjcyBTvl5NWCPWY1Gq3x4HzQpuLkfxQZrzljTgj+k100BRs8Biy dF2wPK82zVVMQyv1oCHPn6LNrZf5C/2TPmww8bsfvMyR5BXOcwMqIQ4qnYlj5vqUVXCv H6N70701bHwnqBbmxSTsVxdBFveFAM3iPEP6k= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:references:user-agent:from:to:cc:subject :in-reply-to:date:message-id:mime-version; bh=uObr8HTRJvvkPtZFYtcKx4WzpLxPFBuwzYX1IrBj3yc=; b=BZrzGpODdx3qo84VL5sI7yrXR+OvJA650dHQ3qTltaWvz1xkser/pvyvDIXoQX8hdt lAhf8CqjE/E1MAROfPecon6PpQjaZJ2gN7Za6+rXTTQCe3xqaUQaZ40AOy7tswY2x4Fx zXNBp1emN4f9dcC+ajSCmLRmfMQnmMNSmpsh3iN3XWxQBsNz9BOm5qBKyghYFVz6PZZc w7PoCqgJFtL0SKUXB/KIJ4LIj5URwXO4kQiIR0NXdf616rvRdaeOc1vm9VYjZDUWQI5W MDqWDJ6sJ9ozqsV/Yz/CDyBJCX68qyexI7qdx2sMIck2l8/em8LEJIx80bcMe1nK436i vpGQ== X-Gm-Message-State: ANhLgQ3fzjpNSQUQ7Offn/z8BObaQglUr6/rFcLOfg6wlEhKr3nncJFB cMq7xZu4zOSm9dkA5eWy4h1wXA== X-Google-Smtp-Source: ADFU+vvhiNLXK/gmpiu0l+tLWMsxbL563AqkpPF0XFukxV+4vnxzUWtwy7ToAThcKQCy2Yn3Hx94cA== X-Received: by 2002:a1c:df45:: with SMTP id w66mr9145048wmg.171.1583409645664; Thu, 05 Mar 2020 04:00:45 -0800 (PST) Received: from cloudflare.com ([176.221.114.230]) by smtp.gmail.com with ESMTPSA id w16sm10403375wrp.8.2020.03.05.04.00.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 05 Mar 2020 04:00:44 -0800 (PST) References: <20200304101318.5225-1-lmb@cloudflare.com> <20200304101318.5225-2-lmb@cloudflare.com> User-agent: mu4e 1.1.0; emacs 26.3 From: Jakub Sitnicki To: Lorenz Bauer Cc: john.fastabend@gmail.com, Daniel Borkmann , "David S. Miller" , Jakub Kicinski , Eric Dumazet , Alexey Kuznetsov , Hideaki YOSHIFUJI , Alexei Starovoitov , kernel-team@cloudflare.com, netdev@vger.kernel.org, bpf@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH bpf-next v3 01/12] bpf: sockmap: only check ULP for TCP sockets In-reply-to: <20200304101318.5225-2-lmb@cloudflare.com> Date: Thu, 05 Mar 2020 13:00:44 +0100 Message-ID: <87h7z3ypsj.fsf@cloudflare.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Mar 04, 2020 at 11:13 AM CET, Lorenz Bauer wrote: > The sock map code checks that a socket does not have an active upper > layer protocol before inserting it into the map. This requires casting > via inet_csk, which isn't valid for UDP sockets. > > Guard checks for ULP by checking inet_sk(sk)->is_icsk first. > > Signed-off-by: Lorenz Bauer > --- Reviewed-by: Jakub Sitnicki [...]