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=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 7FCDAC3A5A1 for ; Thu, 22 Aug 2019 07:04:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6036220870 for ; Thu, 22 Aug 2019 07:04:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729230AbfHVHEA (ORCPT ); Thu, 22 Aug 2019 03:04:00 -0400 Received: from Chamillionaire.breakpoint.cc ([193.142.43.52]:44920 "EHLO Chamillionaire.breakpoint.cc" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728497AbfHVHEA (ORCPT ); Thu, 22 Aug 2019 03:04:00 -0400 Received: from fw by Chamillionaire.breakpoint.cc with local (Exim 4.92) (envelope-from ) id 1i0h8Y-0001a5-Op; Thu, 22 Aug 2019 09:03:58 +0200 Date: Thu, 22 Aug 2019 09:03:58 +0200 From: Florian Westphal To: Paul Moore Cc: netdev@vger.kernel.org, linux-security-module@vger.kernel.org, selinux@vger.kernel.org Subject: Re: New skb extension for use by LSMs (skb "security blob")? Message-ID: <20190822070358.GE20113@breakpoint.cc> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Paul Moore wrote: > Hello netdev, > > I was just made aware of the skb extension work, and it looks very > appealing from a LSM perspective. As some of you probably remember, > we (the LSM folks) have wanted a proper security blob in the skb for > quite some time, but netdev has been resistant to this idea thus far. Is that "blob" in addition to skb->secmark, or a replacement?