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=-9.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=unavailable 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 BCE55C433DF for ; Mon, 27 Jul 2020 20:41:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A3EEF2075D for ; Mon, 27 Jul 2020 20:41:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726769AbgG0UlP (ORCPT ); Mon, 27 Jul 2020 16:41:15 -0400 Received: from youngberry.canonical.com ([91.189.89.112]:53855 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726711AbgG0UlP (ORCPT ); Mon, 27 Jul 2020 16:41:15 -0400 Received: from static-50-53-54-182.bvtn.or.frontiernet.net ([50.53.54.182] helo=[192.168.192.153]) by youngberry.canonical.com with esmtpsa (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.86_2) (envelope-from ) id 1k09vk-0007sv-9k; Mon, 27 Jul 2020 20:41:04 +0000 Subject: Re: [PATCH v19 13/23] LSM: Specify which LSM to display To: James Morris , Casey Schaufler Cc: casey.schaufler@intel.com, linux-security-module@vger.kernel.org, selinux@vger.kernel.org, Audit-ML , Kees Cook , Tetsuo Handa , Paul Moore , Stephen Smalley References: <20200724203226.16374-1-casey@schaufler-ca.com> <20200724203226.16374-14-casey@schaufler-ca.com> From: John Johansen Autocrypt: addr=john.johansen@canonical.com; prefer-encrypt=mutual; keydata= LS0tLS1CRUdJTiBQR1AgUFVCTElDIEtFWSBCTE9DSy0tLS0tCgptUUlOQkU1bXJQb0JFQURB azE5UHNnVmdCS2tJbW1SMmlzUFE2bzdLSmhUVEtqSmR3VmJrV1NuTm4rbzZVcDVrCm5LUDFm 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information is displayed for a >> process. A process can only read or write its own display value. >> >> The name of an active LSM that supplies hooks for >> human readable data may be written to "display" to set the >> value. The name of the LSM currently in use can be read from >> "display". At this point there can only be one LSM capable >> of display active. A helper function lsm_task_display() is >> provided to get the display slot for a task_struct. >> >> Setting the "display" requires that all security modules using >> setprocattr hooks allow the action. Each security module is >> responsible for defining its policy. >> >> AppArmor hook provided by John Johansen >> SELinux hook provided by Stephen Smalley >> >> Reviewed-by: Kees Cook >> Acked-by: Stephen Smalley >> Acked-by: Paul Moore >> Signed-off-by: Casey Schaufler > > jj: do you have any review/feedback on this? > yeah, I am working my way through it today