From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wm0-f68.google.com ([74.125.82.68]:32988 "EHLO mail-wm0-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752566AbeA3SF2 (ORCPT ); Tue, 30 Jan 2018 13:05:28 -0500 Received: by mail-wm0-f68.google.com with SMTP id x4so4785971wmc.0 for ; Tue, 30 Jan 2018 10:05:28 -0800 (PST) From: Dongsu Park To: linux-kernel@vger.kernel.org Cc: linux-integrity@vger.kernel.org, linux-security-module@vger.kernel.org, linux-fsdevel@vger.kernel.org, Alban Crequy , Dongsu Park , Miklos Szeredi , Alexander Viro , Mimi Zohar , Dmitry Kasatkin , James Morris , Christoph Hellwig , "Serge E . Hallyn" , Seth Forshee Subject: [RFC PATCH v4 0/2] ima,fuse: introduce new fs flag FS_IMA_NO_CACHE Date: Tue, 30 Jan 2018 19:06:30 +0100 Message-Id: Sender: linux-fsdevel-owner@vger.kernel.org List-ID: This patchset v4 introduces a new fs flag FS_IMA_NO_CACHE and uses it in FUSE. This forces files to be re-measured, re-appraised and re-audited on file systems with the feature flag FS_IMA_NO_CACHE. In that way, cached integrity results won't be used. There was a previous attempt (unmerged) with a IMA option named "force" and using that option for FUSE filesystems. These patches use a different approach so that the IMA subsystem does not need to know about FUSE. - https://www.spinics.net/lists/linux-integrity/msg00948.html - https://www.mail-archive.com/linux-kernel@vger.kernel.org/msg1584131.html Changes since v1: https://www.mail-archive.com/linux-kernel@vger.kernel.org/msg1587390.html - include linux-fsdevel mailing list in cc - mark patch as RFC - based on next-integrity, without other unmerged FUSE / IMA patches Changes since v2: https://www.mail-archive.com/linux-kernel@vger.kernel.org/msg1587678.html - rename flag to FS_IMA_NO_CACHE - split patch into 2 Changes since v3: https://www.mail-archive.com/linux-kernel@vger.kernel.org/msg1592393.html - make the code simpler by resetting IMA_DONE_MASK The patchset is also available in our github repo: https://github.com/kinvolk/linux/tree/dongsu/fuse-flag-ima-nocache-v4 Alban Crequy (2): fuse: introduce new fs_type flag FS_IMA_NO_CACHE ima: force re-appraisal on filesystems with FS_IMA_NO_CACHE fs/fuse/inode.c | 2 +- include/linux/fs.h | 1 + security/integrity/ima/ima_main.c | 15 +++++++++++++-- 3 files changed, 15 insertions(+), 3 deletions(-) -- 2.13.6