From patchwork Fri Oct 21 12:48:20 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Richard Weinberger X-Patchwork-Id: 685090 X-Patchwork-Delegate: richard@nod.at Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2001:1868:205::9]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3t0lv44r5tz9t0q for ; Fri, 21 Oct 2016 23:52:16 +1100 (AEDT) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.85_2 #1 (Red Hat Linux)) id 1bxZHO-0006KC-3z; Fri, 21 Oct 2016 12:50:34 +0000 Received: from mail.sigma-star.at ([95.130.255.111]) by bombadil.infradead.org with esmtp (Exim 4.85_2 #1 (Red Hat Linux)) id 1bxZGk-0004Vn-R1 for linux-mtd@lists.infradead.org; Fri, 21 Oct 2016 12:49:56 +0000 Received: from localhost (localhost.localdomain [127.0.0.1]) by mail.sigma-star.at (Postfix) with ESMTP id 73DC224E0009; Fri, 21 Oct 2016 14:49:10 +0200 (CEST) X-Virus-Scanned: amavisd-new at mail.sigma-star.at Received: from linux.site (richard.vpn.sigmapriv.at [10.3.0.5]) by mail.sigma-star.at (Postfix) with ESMTPSA id A4CFC24E0007; Fri, 21 Oct 2016 14:49:09 +0200 (CEST) From: Richard Weinberger To: linux-mtd@lists.infradead.org Subject: [PATCH 05/26] ubifs: Define UBIFS crypto context xattr Date: Fri, 21 Oct 2016 14:48:20 +0200 Message-Id: <1477054121-10198-6-git-send-email-richard@nod.at> X-Mailer: git-send-email 2.7.3 In-Reply-To: <1477054121-10198-1-git-send-email-richard@nod.at> References: <1477054121-10198-1-git-send-email-richard@nod.at> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20161021_054955_402376_7F7B02C3 X-CRM114-Status: GOOD ( 12.13 ) X-Spam-Score: -1.9 (-) X-Spam-Report: SpamAssassin version 3.4.0 on bombadil.infradead.org summary: Content analysis details: (-1.9 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 SPF_PASS SPF: sender matches SPF record -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: david@sigma-star.at, tytso@mit.edu, dedekind1@gmail.com, Richard Weinberger , adrian.hunter@intel.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, jaegeuk@kernel.org, dengler@linutronix.de, sbabic@denx.de MIME-Version: 1.0 Sender: "linux-mtd" Errors-To: linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org 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