From patchwork Thu Dec 1 21:20:50 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Richard Weinberger X-Patchwork-Id: 9457011 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 6621C60235 for ; Thu, 1 Dec 2016 21:28:06 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 582D628526 for ; Thu, 1 Dec 2016 21:28:06 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 4D08328540; Thu, 1 Dec 2016 21:28:06 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 0F80B28526 for ; Thu, 1 Dec 2016 21:28:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757553AbcLAVVZ (ORCPT ); Thu, 1 Dec 2016 16:21:25 -0500 Received: from mail.sigma-star.at ([95.130.255.111]:45999 "EHLO mail.sigma-star.at" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753815AbcLAVVX (ORCPT ); Thu, 1 Dec 2016 16:21:23 -0500 Received: from localhost (localhost.localdomain [127.0.0.1]) by mail.sigma-star.at (Postfix) with ESMTP id 8D8C324E0005; Thu, 1 Dec 2016 22:21:20 +0100 (CET) Received: from linux.site (richard.vpn.sigmapriv.at [10.3.0.5]) by mail.sigma-star.at (Postfix) with ESMTPSA id 8FEE524E0002; Thu, 1 Dec 2016 22:21:19 +0100 (CET) From: Richard Weinberger To: linux-mtd@lists.infradead.org Cc: david@sigma-star.at, tytso@mit.edu, dedekind1@gmail.com, ebiggers@google.com, mhalcrow@google.com, adrian.hunter@intel.com, linux-kernel@vger.kernel.org, hch@infradead.org, linux-fsdevel@vger.kernel.org, jaegeuk@kernel.org, dengler@linutronix.de, sbabic@denx.de, wd@denx.de, Richard Weinberger Subject: [PATCH 03/24] ubifs: Define UBIFS crypto context xattr Date: Thu, 1 Dec 2016 22:20:50 +0100 Message-Id: <1480627271-10441-4-git-send-email-richard@nod.at> X-Mailer: git-send-email 2.7.3 In-Reply-To: <1480627271-10441-1-git-send-email-richard@nod.at> References: <1480627271-10441-1-git-send-email-richard@nod.at> Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Like ext4 UBIFS will store the crypto context in a xattr attribute. Signed-off-by: Richard Weinberger --- fs/ubifs/ubifs-media.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/fs/ubifs/ubifs-media.h b/fs/ubifs/ubifs-media.h index e24380cf46ed..d47e9569b3de 100644 --- a/fs/ubifs/ubifs-media.h +++ b/fs/ubifs/ubifs-media.h @@ -301,6 +301,13 @@ enum { #define UBIFS_MAX_NODE_SZ UBIFS_MAX_INO_NODE_SZ /* + * xattr name of UBIFS encryption context, we don't use a prefix + * nor a long name to not waste space on the flash. + */ +#define UBIFS_XATTR_NAME_ENCRYPTION_CONTEXT "c" + + +/* * On-flash inode flags. * * UBIFS_COMPR_FL: use compression for this inode