From patchwork Thu Feb 16 09:13:48 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Murphy Zhou X-Patchwork-Id: 9576687 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 193F360244 for ; Thu, 16 Feb 2017 09:14:20 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 0A89923F88 for ; Thu, 16 Feb 2017 09:14:20 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id F0F852858D; Thu, 16 Feb 2017 09:14:19 +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 9409B23F88 for ; Thu, 16 Feb 2017 09:14:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752841AbdBPJOS (ORCPT ); Thu, 16 Feb 2017 04:14:18 -0500 Received: from mx1.redhat.com ([209.132.183.28]:60532 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751583AbdBPJOP (ORCPT ); Thu, 16 Feb 2017 04:14:15 -0500 Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id B851661D17 for ; Thu, 16 Feb 2017 09:14:15 +0000 (UTC) Received: from localhost (dhcp12-130.nay.redhat.com [10.66.12.130] (may be forged)) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id v1G9EEPW032591; Thu, 16 Feb 2017 04:14:15 -0500 From: Xiong Zhou To: fstests@vger.kernel.org Cc: Xiong Zhou , Miklos Szeredi Subject: [PATCH 1/8] overlay: disallow overlayfs as upperdir Date: Thu, 16 Feb 2017 17:13:48 +0800 Message-Id: <1487236435-6222-1-git-send-email-xzhou@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.39]); Thu, 16 Feb 2017 09:14:15 +0000 (UTC) Sender: fstests-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: fstests@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Using overlayfs dir as upperdir to mount another overlayfs should fail. CC: Miklos Szeredi Signed-off-by: Xiong Zhou --- tests/overlay/022 | 80 +++++++++++++++++++++++++++++++++++++++++++++++++++ tests/overlay/022.out | 2 ++ tests/overlay/group | 1 + 3 files changed, 83 insertions(+) create mode 100755 tests/overlay/022 create mode 100644 tests/overlay/022.out diff --git a/tests/overlay/022 b/tests/overlay/022 new file mode 100755 index 0000000..b09a924 --- /dev/null +++ b/tests/overlay/022 @@ -0,0 +1,80 @@ +#! /bin/bash +# FS QA Test 022 +# +# Regression test for kernel commit: +# 76bc8e2 ovl: disallow overlayfs as upperdir +# +# This reproducer was originally written by +# Miklos Szeredi +# +#----------------------------------------------------------------------- +# Copyright (c) 2017 Red Hat Inc. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- +# + +seq=`basename $0` +seqres=$RESULT_DIR/$seq +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -f $tmp.* +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter + +# remove previous $seqres.full before test +rm -f $seqres.full + +# real QA test starts here + +# Modify as appropriate. +_supported_fs overlay +_supported_os Linux +_require_scratch + +# Remove all files from previous tests +_scratch_mkfs + +upperdir=$SCRATCH_DEV/$OVERLAY_UPPER_DIR +mkdir -p $upperdir/upper +mkdir -p $upperdir/work +# mount overlay with dirs in upper +_scratch_mount + +mkdir -p $tmp/{lower,mnt} +# mount overlay using upper from another overlay upper +# should fail +_overlay_mount_dirs $tmp/lower $SCRATCH_MNT/upper \ + $SCRATCH_MNT/work overlay $tmp/mnt > /dev/null 2>&1 +if [ $? -ne 0 ] ; then + echo "Silence is golden" +else + echo "Test Fail" + $UMOUNT_PROG $tmp/mnt +fi + +# success, all done +status=0 +exit diff --git a/tests/overlay/022.out b/tests/overlay/022.out new file mode 100644 index 0000000..394c6a7 --- /dev/null +++ b/tests/overlay/022.out @@ -0,0 +1,2 @@ +QA output created by 022 +Silence is golden diff --git a/tests/overlay/group b/tests/overlay/group index 5bcc25e..45768f5 100644 --- a/tests/overlay/group +++ b/tests/overlay/group @@ -24,3 +24,4 @@ 019 auto stress 020 auto quick copyup perms 021 auto quick copyup +022 auto quick