From patchwork Tue Jun 13 05:23:51 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Xiubo Li X-Patchwork-Id: 692613 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C5F9EC7EE43 for ; Tue, 13 Jun 2023 05:31:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240202AbjFMFbN (ORCPT ); Tue, 13 Jun 2023 01:31:13 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39180 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240181AbjFMFaq (ORCPT ); Tue, 13 Jun 2023 01:30:46 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 11A8A1BD8 for ; Mon, 12 Jun 2023 22:29:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1686634168; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=zYwO1QkAPROH2kMMIE8I/zmQoktX/tuz/Kl6DuklEiQ=; b=NQnl8XebbjhCeo1MaGGu/rW8RFNNqvEP+iSX2ldYm+MeUh5KFY1EQ5r2kzXxzamT++99yQ 2KjxORbarszJVNrsRl9RKsgM717HZuFgh3HvLCYsUdGj7tRbutlRhoqm2Owe/WENhj63iP gMV2LjPWNVlxnylVEFAJ5ujUYR8kVqY= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-635-P4AEXAqoP12lYGrbqIEqRw-1; Tue, 13 Jun 2023 01:29:24 -0400 X-MC-Unique: P4AEXAqoP12lYGrbqIEqRw-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.rdu2.redhat.com [10.11.54.3]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 5E2F08037AA; Tue, 13 Jun 2023 05:29:24 +0000 (UTC) Received: from li-a71a4dcc-35d1-11b2-a85c-951838863c8d.ibm.com.com (ovpn-12-155.pek2.redhat.com [10.72.12.155]) by smtp.corp.redhat.com (Postfix) with ESMTP id 2D62F1121314; Tue, 13 Jun 2023 05:29:20 +0000 (UTC) From: xiubli@redhat.com To: idryomov@gmail.com, ceph-devel@vger.kernel.org Cc: jlayton@kernel.org, vshankar@redhat.com, mchangir@redhat.com, lhenriques@suse.de, Xiubo Li Subject: [PATCH v20 38/71] ceph: don't allow changing layout on encrypted files/directories Date: Tue, 13 Jun 2023 13:23:51 +0800 Message-Id: <20230613052424.254540-39-xiubli@redhat.com> In-Reply-To: <20230613052424.254540-1-xiubli@redhat.com> References: <20230613052424.254540-1-xiubli@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.3 Precedence: bulk List-ID: X-Mailing-List: ceph-devel@vger.kernel.org From: Luís Henriques Encryption is currently only supported on files/directories with layouts where stripe_count=1. Forbid changing layouts when encryption is involved. Tested-by: Luís Henriques Tested-by: Venky Shankar Signed-off-by: Luis Henriques Reviewed-by: Xiubo Li Signed-off-by: Jeff Layton --- fs/ceph/ioctl.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/fs/ceph/ioctl.c b/fs/ceph/ioctl.c index 7f0e181d4329..679402bd80ba 100644 --- a/fs/ceph/ioctl.c +++ b/fs/ceph/ioctl.c @@ -294,6 +294,10 @@ static long ceph_set_encryption_policy(struct file *file, unsigned long arg) struct inode *inode = file_inode(file); struct ceph_inode_info *ci = ceph_inode(inode); + /* encrypted directories can't have striped layout */ + if (ci->i_layout.stripe_count > 1) + return -EINVAL; + ret = vet_mds_for_fscrypt(file); if (ret) return ret;