From: Amir Goldstein Date: Tue, 11 Jul 2017 19:52:05 +0000 (+0300) Subject: overlay: test cases that force read-only mount X-Git-Tag: v2022.05.01~1968 X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=abde53bc1522d0df1ec509cc1f4964a75c078217;p=users%2Fhch%2Fxfstests-dev.git overlay: test cases that force read-only mount Verify that overlay is mounted read-only and that it cannot be remounted rw. - Mount with no upper dir - Failure to create work dir Signed-off-by: Amir Goldstein Reviewed-by: Eryu Guan Signed-off-by: Eryu Guan --- diff --git a/tests/overlay/035 b/tests/overlay/035 new file mode 100755 index 000000000..0ef91c621 --- /dev/null +++ b/tests/overlay/035 @@ -0,0 +1,87 @@ +#! /bin/bash +# FS QA Test 035 +# +# Test cases that force read-only mount +# +# - No upper dir +# - Failure to create work dir +# +#----------------------------------------------------------------------- +# Copyright (C) 2017 CTERA Networks. All Rights Reserved. +# Author: Amir Goldstein +# +# 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 / + $CHATTR_PROG -i $workdir + rm -f $tmp.* +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter + +# remove previous $seqres.full before test +rm -f $seqres.full + +# real QA test starts here +_supported_fs overlay +_supported_os Linux +_require_scratch +_require_chattr i + +# Remove all files from previous tests +_scratch_mkfs + +# Create multiple lowerdirs and upperdir, workdir +lowerdir1=$OVL_BASE_SCRATCH_MNT/lower1 +lowerdir2=$OVL_BASE_SCRATCH_MNT/lower2 +upperdir=$OVL_BASE_SCRATCH_MNT/upper +workdir=$OVL_BASE_SCRATCH_MNT/workdir +mkdir -p $lowerdir1 $lowerdir2 $upperdir $workdir + +# Mount overlay with lower layers only. +# Verify that overlay is mounted read-only and that it cannot be remounted rw. +$MOUNT_PROG -t overlay -o"lowerdir=$lowerdir2:$lowerdir1" \ + $OVL_BASE_SCRATCH_MNT $SCRATCH_MNT +touch $SCRATCH_MNT/foo 2>&1 | _filter_scratch +_scratch_remount rw 2>&1 | _filter_scratch +$UMOUNT_PROG $SCRATCH_MNT + +# Make workdir immutable to prevent workdir re-create on mount +$CHATTR_PROG +i $workdir + +# Mount overlay with upper and workdir and expect failure to re-create workdir. +# Verify that overlay is mounted read-only and that it cannot be remounted rw. +_overlay_mount_dirs $lowerdir2 $upperdir $workdir \ + $OVL_BASE_SCRATCH_MNT $SCRATCH_MNT +touch $SCRATCH_MNT/bar 2>&1 | _filter_scratch +_scratch_remount rw 2>&1 | _filter_scratch + +# success, all done +status=0 +exit diff --git a/tests/overlay/035.out b/tests/overlay/035.out new file mode 100644 index 000000000..5a5f67771 --- /dev/null +++ b/tests/overlay/035.out @@ -0,0 +1,5 @@ +QA output created by 035 +touch: cannot touch 'SCRATCH_MNT/foo': Read-only file system +mount: cannot remount SCRATCH_DEV read-write, is write-protected +touch: cannot touch 'SCRATCH_MNT/bar': Read-only file system +mount: cannot remount SCRATCH_DEV read-write, is write-protected diff --git a/tests/overlay/group b/tests/overlay/group index 356a322d5..87e3aaf4b 100644 --- a/tests/overlay/group +++ b/tests/overlay/group @@ -37,3 +37,4 @@ 032 auto quick copyup hardlink 033 auto quick copyup hardlink 034 auto quick copyup hardlink +035 auto quick mount