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=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,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 2A738C48BD5 for ; Tue, 25 Jun 2019 06:04:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 01CC520656 for ; Tue, 25 Jun 2019 06:04:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728838AbfFYGE1 (ORCPT ); Tue, 25 Jun 2019 02:04:27 -0400 Received: from namei.org ([65.99.196.166]:47546 "EHLO namei.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726495AbfFYGE1 (ORCPT ); Tue, 25 Jun 2019 02:04:27 -0400 Received: from localhost (localhost [127.0.0.1]) by namei.org (8.14.4/8.14.4) with ESMTP id x5P64Fvp031584; Tue, 25 Jun 2019 06:04:15 GMT Date: Tue, 25 Jun 2019 16:04:15 +1000 (AEST) From: James Morris To: Matthew Garrett cc: LSM List , Linux Kernel Mailing List , Linux API , Stephen Smalley , Andy Lutomirski , John Johansen , Casey Schaufler Subject: Re: [PATCH V34 00/29] Lockdown as an LSM In-Reply-To: Message-ID: References: <20190622000358.19895-1-matthewgarrett@google.com> User-Agent: Alpine 2.21 (LRH 202 2017-01-01) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Sender: owner-linux-security-module@vger.kernel.org Precedence: bulk List-ID: On Mon, 24 Jun 2019, Matthew Garrett wrote: > > We are still not resolved on granularity. Stephen has said he's not sure > > if a useful policy can be constructed with just confidentiality and > > integrity settings. I'd be interested to know JJ and Casey's thoughts on > > lockdown policy flexibility wrt their respective LSMs. > > This implementation provides arbitrary granularity at the LSM level, > though the lockdown LSM itself only provides two levels. Other LSMs > can choose an appropriate level of exposure. Ahh, OK, I only looked at the patchset description and had not looked at V33 yet. This is looking good. -- James Morris